US3589759A

US3589759A - Locking device for movable leaves such as window panes

Info

Publication number: US3589759A
Application number: US807619A
Authority: US
Inventors: Marcel Bercheux
Original assignee: Boussois Souchon Neuvesel SA
Current assignee: Boussois Souchon Neuvesel SA
Priority date: 1968-03-26
Filing date: 1969-03-17
Publication date: 1971-06-29
Anticipated expiration: 1988-06-29
Also published as: NL6904529A; FR1566636A; AT292500B; BE729632A; CH491272A; DE1914405A1; GB1238981A; LU58245A1; ES365211A1

Abstract

A device for locking movable leaves such as window panes and comprising a main lock provided with a catch mounted on the leaf and adapted to cooperate with a box-staple fixed in oppositely facing relation on the casing against which the leaf is brought to bear in the closed position and at least one auxiliary lock. The device comprises a system for the remote operation of the auxiliary lock by the catch of the main lock by means of a mechanical connection system carried by the casing. The connection system according to a specific embodiment comprises a slide-block which is housed within the box-staple, said slide-block being connected to motion-transmission means carried by the casing and terminating in a rocking-latch which forms part of the auxiliary lock.

Description

United States Patent Continuation-impart of application Ser. No. 752,993,Aug. 15, 1968, now abandoned.

LOCKING DEVICE FOR MOVABLE LEAVES SUCH AS WINDOW PANES 15 Claims, 23 Drawing Figs.

US. Cl 292/50,

49/390, 292/54, 292/241, 292/34l.l5 Int. Cl E05c 3/06 Field ofSearch 292/1 1,28,

31, 38-39, 45, 50-51, 54, 240-241, 304, 341.15, DIG. 59, DIG. 33, DIG. 41, DIG. 46, DIG. 3; 70/264; 312/215-216, 221; 49/390, 395

Primary Examiner-Stephen .lv Novosad Assistant Examiner-Robert L. Wolfe Attorney- Young & Thompson ABSTRACT: A device for locking movable leaves such as window panes and comprising a main lock provided with a catch mounted on the leaf and adapted to cooperate with a box-staple fixed in oppositely facing relation on the casing against which the leaf is brought to bear in the closed position and at least one auxiliary lock. The device comprises a system for the remote operation of the auxiliary lock by the catch of the main lock by means of a mechanical connection system carried by the casing.

The connection system according to a specific embodiment comprises a slide-block which is housed within the box-staple, said slide-block being connected to motion-transmission means carried by the casing and terminating in a rocking-latch which forms part of the auxiliary lock.

PATENTED JUN29 am Mr 2 OF 7 Avmwrr PATENTEU JUN29|97| 34589759 I SHEET u 0F 7 Awa /M ATENTEH JUN29 |9n SHEET 7 OF 7 Mqxczz deem/sax LOCKING DEVICE FOR MOVABLE LEAVES SUCH AS WINDOW PANES This application is a continuation-in-part of my copending application Ser. No. 752,993, filed Aug. 15, 1968 and now abandoned.

This invention relates to a locking device for movable leaves such as doors and window panes.

As is already known, it frequently proves necessary to lockmovable leaves at a number of different points when said leaves have a tendency to deform by reason of their construction or dimensions. For example, locking is necessary when a P leaf of this general type consists of a frameless pane of hard 7 glass, a sheet of plastic material or a glass windown pane surrounded by a lightweight frame. When locked in the closed position, the leaves are well seated on their casings and can additionally withstand any pressure to which they may be subjected without deformation, especially under the action of wind.

To this end, use has been made of devices comprising a main lock consisting of a catch which may or may not be rotatably mounted on the leaf and which is actuated by means of a handle, said catch being adapted to cooperate with a staple which is fixed in oppositely facing relation on the casing, and one or a number of auxiliary locks of the latch type which are controlled independently of the main lock and even from a distance, especially by means of pulling handles and cables.

These devices have the disadvantage of requiring a number of separate operations both at the moment of locking and at the time of unlocking; furthermore, if the auxiliary locks are actuated before the proper time, the leaf is liable to be damaged at the moment ofclosure.

Use has also been made of another class of devices which comprise a plurality of catches mounted on the leaf and adapted to cooperate with staples mounted in opposite relation on the casing, said catches being actuated simultaneously by means of a central control system carried by the leaf.

In the devices last-mentioned, the connecting members are cumbersome, increase theweight of the leaf, reduce the field of visibility and are unattractive. In order tocircumvent these disadvantages, it has been proposed to conceal the connecting elements to a partial extent within the leaf frame. However, the recesses which are thus made necessary are usually detrimental to the rigidity of said frame.

In any case, the devices just referred-to cannot be employed on frameless panes of hard glass without presenting major-difficulties; in fact, the attachment of such devices to glass panes of this type would entail high capital cost and would prove unacceptable to users.

The aim of this invention is to overcome the disadvantages noted above.

In accordance with the invention, the device for locking movable leaves such as window panes and comprising a main lock provided with a catch mounted on the leaf and adapted to cooperate with a box-staple fixed in oppositely facing relation on the casing against which the leaf is brought to bear in the closed position and at least one auxiliary lock essentially comprises a system for the remote operation of the auxiliary lock by the catch of the main lock by means of a mechanical connection system carried by the casing.

It is thus possible in a single operation to carry out the synchronized actuation of all the closure members.

In a preferred manner, the connection system comprises a slide-block which is housed within the box-staple, said slideblock being connected to motion-transmission means carried by the casing and terminating in a rocking-latch which forms part of the auxiliary lock. Also as a preferred feature, the slide-block is provided with a shaped recess for accommodating the extremity of the catch which is rotatably mounted on the leaf.

It is apparent that, during the movement of closure of the main lock, the slide-block is displaced by the catch, thereby producing the closure of the rocking-latch of the auxiliary lock. Fastening of the leaf is thus carried out by means of the two locks which work simultaneously under the action of the mechanical connection system.

This locking system has the advantage of being applicable to different types of movable leaves and especially to those which open by swinging inwards about the lower horizontal crossmember of the casing and to those which open in a pivotal motion about a vertical upright member of the casing.

Another field of application of the invention which is of particular interest relates to windows which are operated not between two positions but between three positions: a closed position, a top-opening position and a side-opening position. Windows of this type combine the advantages of the two above-mentioned modes of opening by permitting of pivotal motion either about a horizontal axis or a vertical axis.

In this particular application, the main lock and the auxiliary lock each have three associated positions: the first is an open position for the main lock and for the auxiliary lock, the second is a closed position for the main lock and for the aux- 0 iliary lock and the third is an open position for the main lock and a closed position for the auxiliary lock.

By virtue of this arrangement, all the window-opening operations can be carried out by means of a single main lock which actuates a suitable number of auxiliary locks from a distance by means of a connection system carried by the eas- In a preferred embodiment, the locking device comprises two sets of auxiliary locks, the first set being mounted along the bottom member of the casing and the second set being mounted on the side of the casing opposite to the main lock; each auxiliary lock comprises two hinges between which a movable pin actuated by the main lock serves to establish a pivotal connection.

It is clear that, depending on the position given to the main lock, all the auxiliary locks are closed at the same time or alternatively one or the other of the two sets mentioned above. When only one set is in the closed position, the main lock is in the open position and the leaf is permitted to open by carrying out a pivotal movement about the closed locks which perform the function of hinges. These improvements are of outstanding interest from an industrial standpoint in the case of window panes of the type consisting of a sheet of hard glass which is at least partly frameless.

Further properties and advantages of the invention will become apparent from the description which follows below, reference being had to the accompanying drawings which are given by way of example without any limitation being implied, and in which:

FIG. 1 is a diagrammatic view in perspective of a first application of the locking device in accordance with the invention to a pivoted window;

FIG. 2 is an enlarged fragmentary view in front elevation showing the main lock of FIG. 1, the front cover having been removed;

FIG. 3 is a corresponding sectional view in side elevation and taken along line III-III of FIG. 2;

FIG. 4 is a corresponding sectional plan view taken along line IV-IV of FIG. 2;

FIG. 5 is a sectional view in elevation of the auxiliary lock of FIG. 1, this view being taken along line V-V of FIG. 6;

FIG. 6 is the corresponding plan view;

FIG. 7 is a corresponding sectional view in profile and taken along line VII-VII of FIG. 5;

FIG. 8 is a view in perspective showing the rocking-latch of the auxiliary lock;

FIG. 9 is a fragmentary view in elevation showing the connection between the two locks of FIG. 1;

FIG. 10 is an enlarged horizontal sectional view taken along line X-X of FIG. 9;

FIG. 11 is a diagrammatic view in perspective showing a second application of the invention to a casement window;

FIG. 12 is a diagrammatic view in perspective showing'an alternative form of execution of the invention for a window with a single leaf which is pivoted along a vertical axis;

FIG. 13 is a diagrammatic view in perspective showing a third application of the invention to a horizontally pivoted window which is combined with the alternative form of execution of FIG. 12;

FIG. 14 is a fragmentary view in elevation-of the main lock according to another alternative form of execution of the invention;

FIG. 15 is a part-sectional view in front elevation showing a window with two pivotal axes and equipped with a locking device in accordance with the invention as shown in the closed position;

FIG. 16 is an exploded view of the main lock as shown in perspective and on a larger scale;

FIG. 17 is a sectional plan view of the main lock taken along line XVIIXVII of FIG. 15 and on a scale similar to the preceding;

FIG. 18 is an enlarged perspective view of an auxiliary lock;

FIG. 19 is a fragmentary view which is similar to FIG. 15 and shows the locking device in a position of readiness for opening the window about a horizontal axis;

FIG. 20 is a view which is similar to FIG. 19 and shows the locking device in a position of readiness for opening the window about a vertical axis;

FIG. 21 is a diagrammatic view in perspective and on a small scale showing an open window, the locking device being in the position of FIG. 19;

FIG. 22 is a similar view showing the open window. the locking device being in the position of FIG. 20;

FIG. 23 is a part sectional view taken along line XXIII-XX- III ofFIG. 15.

Referring now to FIG. 1, there is shown a pivoted window which comprises a stationary casing 1 of wood, for example, and a pane 2 of hard glass, referred-to hereinafter as a leaf. Said leaf is capable of moving about the horizontal axis which passes through two pivots 3 and these latter are rigidly fixed to the upright members of the casing l on which said leaf is mounted.

Leak-tightness of the window in the closed position is by means of a seal 4 which is mounted in the opening of the casing 1.

The locking device in accordance with the invention as employed for a window of this type comprises a main lock A which is fitted at the bottom of said window. Said main lock comprises a catch 5 mounted on the leaf 2 and a box-staple 6 fixed in oppositely facing relation thereto on the lower cross member 8'of the casing 1. At the top of the window, the locking device further comprises an auxiliary lock 7 which is housed in the upper crossmember 9 of the casing I. Said two locks A and 7 are placed along the vertical axis ofsymmetry of the window and a cable connection system 10 serves to connect the box-staple 6 to the auxiliary lock 7.

As illustrated in greater detail in FIGS. 2, 3 and 4 in which the main lock A is drawn to a larger scale, the catch 5 (shown in FIG. 2) is integral with an operating handle 11 which is substantially at right angles thereto. The catch 5 is rotatably mounted on a pivot-pin 2 which is perpendicular to the leaf 2 and the base 13 of which is screwed to a clamping plate 14 placed in oppositely facing relation thereto on the other face of the leaf 2.

The box-staple 6 is closed by means of a detachable front cover 15. The large face of said box-staple which is opposite to the cover 15 is screwed into the lower crossmember 8 and is mounted flush with the edge of this latter in the longitudinal direction. The box-staple 6 is provided with an engagement slot 16 formed in a small plate 17 which is set in a groove 18 formed along an opening of said face. The box-staple engagement slot 16 is provided on the side nearest to the crossmember 8 with a skew 19 which slopes away from said crossmember 8 in a first section 190 then remains parallel to said crossmember in a second section 19b, said two sections 190 and 19b being separated from each other by a stop-boss 21 for arresting the catch 5 which, in the closed position, moves into position against the second section 19b of the skew 19.

A slide-block 22 of rectangular cross section is slidably mounted on a longitudinal rod 23 inside the box-staple 6 and is guided in its displacement by the vertical walls of said boxstaple. The slide-block 22 is provided at the top with a shaped recess 24 for receiving the tip of the catch Sand at the bottom with a lug 25 in which a bore 26 is formed parallel to the guide rod 25 so as to provide a passageway for the cable 10 which is brought in through an opening 27 of the box-staple 6 and secured at the outlet of the bore26 by means ofa cable clamp 28 which is applied against the lug 25. The guide rod 23 which is supported by the end faces of the box-staple 6 is held in position by means of an end-clip 29. Said clip is applied within a housing which is symmetrical with the recess in which the head 31 of said guide rod 23 is embedded. The V-shaped recess 24 has a vertical bearing wall 24a.

Reference will now be had to FIGS. 5, 6 and 7 in which the auxiliary lock 7 is also shown on a larger scale. From these figures, it is apparent that said auxiliary lock comprises a box 32 which is open on two sides and a rocking-latch 33 which is force-fitted on a transverse spindle 34, the ends of which are mounted for rotation in bearings which form part of the base 35 of the box 32. The box is housed within a hollowed-out portion 30 formed in the front portion of the upper crossmember 9 so that its base 35 and fixing flanges 36 project as little as possible from the horizontal wall of the rebate formed in the crossmember 9 in order not to interfere with the movements of the leaf 2. v

The rocking-latch 33 which is illustrated in FIG. 8 has two

arms

37 and 38 which are inclined to each other at an angle of approximately and the pivotal motion of which is limited to an amplitude of about 45 by a shaped opening 39 of the base 35 into which the upper arm 37 is adapted to pass. Two bores 41 and 42 are formed at the extremity of the upper arm 37: the bore 41 serves to secure the head 43 of the sliding cable 10 which passes out of the box 32 through the bore 44; the bore 42 serves as a point of attachment for a restoring spring 45, the other end of which is attached to the box 32.

The other arm 38 forms a catch and is capable either of angular displacement outside the box 32 in such a manner that the side 47 of said arm is brought to bear on the leaf 2 in the closed position or of complete withdrawal into the cavity 46 formed beneath the base 35 of the box 32 in order not to interfere with the movements of the leaf 2. The side 47 (as shown in FIG. 8) is a flat surface which is inclined at an angle of ap proximately 3 to the plane located at right angles to the pivotal axis or spindle 34 and to which is added another angle of inclination of approximately 4 with respect to a right section. It is understood that this tapered shape facilitates engagement with the leaf 2 and permits the exertion of a progressive thrust on this latter.

On the side opposite to the leaf 2, the two

arms

37 and 38 are provided with diagonal edges in order to reduce the weight of the rocking-latch.

The sliding cable 10 of the mechanical connection system (as shown in FIGS. 9 and 10) which starts from the rockingcatch 33 and terminates at the slide-block 22 runs within a sheath 48. Said sheath is fitted in a rebate 49 which is formed around the periphery of the casing 1 and at the front edge of this latter. Said rebate 49 which is formed prior to installation around the entire periphery for reasons of convenience is in fact intended to accommodate the cable 10 only over one-half said periphery, namely the half which is shown in the figure on the right-hand side of the vertical plane of symmetry of the window. A cover-plate 51 made up of four miter-jointed strips is fitted over the rebate around the entire casing.

The locking device in accordance with the invention as hereinabove described is in the operative condition when the turns of the restoring spring 45 of the auxiliary lock are in contact with each other and the sliding cable 10 has been tensioned by displacement of the cable clamp 28 which is applied against the slide-block 22, thereby bringing said slide-block to bear against that endwall of the box-staple 6 which is located on the cable inlet side.

In order to close the pivoted window which is illustrated in FIG. I, the operator takes hold of the operating handle 11 and draws this latter towards him, thereby causing the rotation of the leaf 2 about the pivots 3, said leaf being then applied against the rebates of the crossmembers 8 and 9 of the window-casing 1 and brought into contact with the seal 4.

In order to lock the leaf 2 in the closed position, the operator continues to exert a pull on the operating handle 11 while rotating this latter in the direction indicated by the arrow H in FIG. 2. The tip of the catch 5 then engages in the box-staple slot 16 as shown in FIG. 3 while bearing on the skew section 19a. It is apparent that, as the operator continues his movement in the direction of the arrow H, the leaf 2 applies an increasing pressure against the seal 4 which is placed at the bottom of the rebate of the lower crossmember 8 by virtue of the obliquity of the skew section 19a which slopes progressively away from the plane of the casing 1. Thereupon, the catch 5 passes over the boss 21 which maintains the locking action, then slides over the skew section 19b which is parallel to the plane of the casing 1. As a result of this operation, that-portion of the leaf 2 which is located below the axis formed by the pivots 3 is suitably closed and locked in position; good leak-' then into the shaped recess 24 and comes into contact with the vertical wall 240 of this latter. Under the effort exerted by the catch 5, the slide-block 22 moves horizontally inthe direction of the arrow K and causes the displacement ofthe cable 10. As a result of the action produced by the cable which is secured at the other end thereof to the latch-arm 37, the rocking-latch 33 performs a pivotal movement in the direction of the arrow L (as shown in FIG. 5) and lowers its arm 38 which presses the leaf 2 progressively against the seal 4 which is placed within the rebate of the upper crossmember 9. During this pivotal movement, the restoring spring 45 is progressively stretched. The pivotal movement stops when the arm 37 of the rocking-latch 33 is applied against the sloping wall 390 of the opening 39 of the box 32', the amplitude of this movement is 45 and permits the arm 38 to take up a position at an angle of 45 to the horizontal. Inasmuch as the cable 10 is no longer capable of sliding, the catch 5 is then immobilized in its turn. As a result of the pivotal movement of the rocking-latch 33, that portion of the leaf 2 which is located above the axis formed by the two pivots 3 is thus suitably closed and locked in position; good leak-tightness is ensured in this zone by virtue of the pressure applied bythe leaf2 against the seal 4.

In order to carry out the unlocking operation, it is only necessary to rotate the operating handle 11 in the direction opposite to the arrow H. The catch 5 accordingly slides over the skew section 19b in the direction of the boss 21, passes over said boss, continues to move while remaining in contact with the sloping skew section 19a and finally passes out of the box-staple engagement slot 16. At the same time, the slideblock 22 which is controlled by the restoring spring 45 of the auxiliary lock 7 has followed the backward movement of the catch 5 while remaining in contact with the tip of this latter by means of the vertical wall 240 of the shaped recess 24. The movement of the slide-block 22 in the direction opposite to the arrow K stops when said slide-block is applied against the wall of the box-staple 6 which is located on the same 'side as the cable 10 and, in this position, the shaped design of the recess 24 permits the release of the tip of the catch 5. Moreover, in the auxiliary lock, the action of the restoring spring 45 becomes prepondcrant, the rocking-latch 33 pivots in the direction opposite to the arrow L and its arm 38 withdrawn into the cavity 46 of the box 32, thereby completely releasing the leaf 2.

The pivoted window can then be opened again by pushing the operating handle 11 in the outward direction.

In a preferred manner, the moving components of the locks of the locking device in accordance with the invention, that is to say the slide-block 22 and the rocking-latch 33, are formed of plastic material such as polyamide. The sliding cable 10 is preferentially of the type employed for bicycle brakes. The plate 17 in which is formed the box-staple engagement slot 16 is preferably made of stainless steel.

The application of the locking device which has just been described makes it possible in an advantageous manner to lock or to unlock simultaneously both the top and bottom portions of the leaf 2 in a single movement of the handle 11. The system of connection between the two locks A and 7 is remarkably simple and is fully concealed so that the visible ancillary components on the window are reduced to a minimum. Moreover, the device is both inexpensive to produce and easy to install.

The locking device hereinabove described comprises motion transmission elements which have been mounted in the right-hand portion of the window casing. Said elements can also be fitted in the left-hand portion but in this case the device is arranged in its symmetrical form. The operation accordingly differs in that the rotation of the operating handle 11 and of the catch 5 takes place in the direction opposite to the arrow H for the locking operation and in the direction of said arrow for the unlocking operation.

Thus, in FIG. 11, the device according to the invention is applied to the longitudinal fastening of a casement window, or window-leaf which pivots about a lateral vertical axis.

This window comprises a fixed casing 61 and a leaf 62 which is pivotally mounted on an upright member 64 of said casing 61 by means of two hinges 63. The leaf comes into the closed position against a rebate (not shown in the figure) which is formed in the opposite upright member 65.

This application differs from the first in that the components of the device are displaced in order to fasten the free vertical edge of the leaf 62 and in that said components are disposed symmetrically. I

The operation of the device remains the same, the handle 11 being also operated in the downward direction.

In this new application, the advantages of the device are retained.

In FIG. 12, the device according to the invention is applied to the longitudinal fastening of one of the edges of a centrally pivoted window pane.

The window comprises a fixed casing 71 and a pivotal leaf 72 which is rotatable about a vertical axis which passes through two pivots 73, said pivots being rigidly fixed to the crossmembers of the casing 71 and said leaf being mounted on said pivots.

This third application differs from the first in that the device comprises two auxiliary locks 7a, 7b. Said locks are remotely operated in series by means of the sliding cable 10 and can also be remotely operated separately by two sliding cables which are both secured to the slide-block 22 of the box-staple 6.

The operation of the device as thus modified is the same as that of the first application and provides the same advantages.

The third application referred-to is of interest for the purpose of locking pivotal leaves of substantial height. 7

In the fourth application which is illustrated in FIG. 13, two devices in accordance with the invention are mounted on a same pivoted window for the transverse fastening of the leaf 82.

The first of these devices which is mounted in the right-hand portion is similar to the third application and comprises two auxiliary locks 7a, 7b which are mounted on the upper crossmember of the casing 81, one at the center of the casing and the other at one end ofthe casing.

The second device is identical with the second application (handle 5a, lock 7c).

The devices referred-to operate independently and are advantageously employed for the purpose of locking pivotal leaves of very substantial width.

The embodiment which is illustrated in FIG. 14 is an alternative form of the locking device according to the invention,

wherein the box-staple 6 is connected to its auxiliary lock 7 (not shown) by means of a transmission member consisting of a link-rod 83. This alternative form of construction differs from the first application of the device in that the link-rod 83 connects the slide-block 22 to the rocking-latch 33 of the lock 7 instead of the sliding cable and that a restoring spring 84 which is interposed between the slide-block 22 and the base of the box-staple 6 replaces the restoring spring 45 of the rocking-latch 33.

The link-rod 83 is secured to the lug 25 by means of two nuts 85 and 86 which are applied against the opposite faces of the lug 25. In this application, the connecting system com prises a link-rod system which includes articulated members 87 forming bellcrank levers.

In a specific application of the invention which will now be described, the window comprises a fixed casing 101 (as shown in FIG. and a frameless pane 102 of hard glass which can be pivoted at will about a lower horizontal axis or about a lateral vertical axis. A flexible seal 104 (shown in FIG. 23) is secured to the casing 101 and serves as a stop for the window pane 102. Y

The locking device comprises on the left-hand side of the window a main lock A which in turn comprises a catch I05 mounted on the window pane 102 and a box'staple 106 which is fixed in oppositely facing relation on the left-hand upright member 103 ofthe window casing 101.

The locking device further comprises four auxiliary locks 107 which are fitted on the right-hand side and at the bottom of the window. Two of said locks, namely the locks 107a, are secured to the lower crossmember 108 of the window casing 101 and to the corresponding edge of the window pane 102. Theother two auxiliary locks, namely 107b, are secured to the right-hand upright member 110 of the casing 101 and to the corresponding edge of the pane 102.

A link-rod system B carried by the window casing 101 connects the main lock A to the four auxiliary locks 107.

The catch 105 of the main lock A (as shown in FIGS. 16 and 17) consists of a plate having a substantially triangular contour which is capable of sliding along the window pane 102. One of the summits of said plate constitutes a nose which projects beyond the edge of the pane 102 and carries a lateral stud 116. The side of the catch 105 which is remote from the nose carries a rack 115 which is parallel to the edge of the pane 102 and projects from the reverse face of the catch 105 t with respect to that which carries the stud 116.

The rack 115 is adapted to engage with a toothed sector 114 which is integral with a shaft 112 having a square end on which is fitted an operating lever 11] The shaft 112 is adapted to pass through a support plate 113 which is fixed on the window pane 102 and which is recessed to accommodate the catch 105, the rack 115 and the toothed sector 114.

The box-staple 106 comprises a casing 117 which is inserted in a recess 117a of the upright member 103 of the window casing 101 and a cover plate 118 which is mounted flush with said window casing. The cover-plate 118 is provided on cover plate side facing opposite to the catch 105 with two recesses 119a and 119b separated by a central boss 120 which is curved towards the interior of the box-staple 106, as shown in FIG. 17.

A block 121 which is adapted to slide vertically in the interior of the box-staple 106 is provided with a bore 122 which is intended to receive the stud 116. This slide-block 121 is coupled by means of a tenon 123 to a flat bar 124 which constitutes one component of the link-rod system B. Said flat bar 124 which is housed within a vertical groove 125 of the upright member 103 is adapted to penetrate into the box-staple 106 through two notches 126 of the box-staple casing 117. When the slide-block 121 takes up either one or the other of the end positions in which it is abuttingly applied against one of the walls of the box-staple 106, the bore 122 is located substantially at the same level as the center of one of the

recesses

119a and 119/).

The flat bar 124 terminates at the upper extremity in a rightanglcd portion which is directed towards the window pane 102 and constitutes an additional locking member 127. When the slide-block 121 takes up a mean position within the box-staple 106, the locking member 127 engages in a crossmember 128 which is fixed along the upper edge of the window pane 102 and which projects beyond the edge of said pane on the side corresponding to the catch 105. On the contrary, when the slide-block 121 takes up one of its end positions, the crossmember 128 is released from the auxiliary lock 127.

By following the link-rod system B, it is seen that the flat bar 124 is pivotally coupled at the lower end by means of a motion-transmission chain 131 with a horizontal rod 132 which is enclosed within a sheath 129 and fitted within a groove 133 of the bottom crossmember 108. At the end remote from the motion-transmission chain 131, the rod 132 is pivotally coupled by means of another transmission chain 134 with a vertical rod 135 which is also sheathed and fitted within a groove 136 of the right-hand upright member 110. The rod 132 is connected to the auxiliary locks 107a and the rod 135 is connected to the auxiliary locks 107b as will be explained hereinafter.

Referring now to FIG. 15 and to FIG. 18, it is apparent that each similar lock 107 comprises a hinge component 141 which is secured to the window casing 101 and a hinge component 143 which is secured to the window pane 102, said hinge components being capable of cooperating with each other by means ofa movable pin 145 which corresponds to the rocking-latch of the previous embodiments. The stationary hinge component 141 has two lateral extensions in the form of brackets 146 and these latter are joined at their extremities by threaded rods 148 which are forcibly inserted in the window casing 101. The rod 132 is adapted to pass between the brackets 146 and is provided between these latter with a notched portion 149 into which penetrates the lug of a slide 150, said slide being integral with the movable pin 145 which is slidably fitted within the hinge component 141. The movable hinge component 143 which has the same internal diameter as the hinge component 141 is secured to the pane 102 by means of screws.

The movable pin 145 which is coupled to the link-rod system B by means of the slide 150 is capable of taking up three positions corresponding to the three positions of the catch 105;

in a first or so-called disengagement position, the mova ble pin 145 is fully withdrawn into the hinge component 141;

in a second or so-called semi-engagement" position, said pin projects from the hinge component 141 to a distance which is substantially equal to one-half the length of the hinge component 143;

in a third or so-called engagement position, said pin projects to a distance which is substantially equal to the length of the hinge component 143.

In addition, the respective positions of the four movable pins 145 relative to the link-rod system B are such that all the auxiliary locks 107 are in the semi-engagement position at the same time when the main lock A is in the closed position as shown in FIG. 15; when the main lock A is in its first open position and the operating lever 111 is thus directed upwards so that the nose of the catch 105 is located opposite to the recess 119a, the auxiliary locks 107a are accordingly in the engagement" position and the auxiliary locks 107b are in the disengagement" position, as shown in FIG. 19; when the main lock A is in its second open position and the operating lever 111 is thus directed downwards so that the nose of the catch 105 is located opposite to the recess 11%, the auxiliary locks 107a are accordingly in the disengagement position and the auxiliary locks 107b are in the engagement position, as shown in FIG. 20.

Finally, the equipment of the window is completed by an articulated opening arm 151 of known type (as shown in FIG. 15), said arm being secured at one end to the crossmember 128 which is located above the pane 102 and at the other end to the right-hand upright member 110 of the casing 101.

The operation of the locking device is as follows:

a. when the window is in the closed position, the pane 102 is applied against the casing 101 and the operating lever 111 is in a substantially horizontal position, as shown in FIG. 15. The nose of the catch 105 is engaged within the box-staple 106 beneath the boss 120 and forced by this latter towards the interior of the box-staple and the stud 116 is housed within the bore 122 of the block 121. The four auxiliary locks [07 are in the semiengagement" position and the additional locking member 127 is in contact with the crossmember 128. The pane 102 is therefore secured on all four sides. Furthermore, the pane is applied against the seal 104 under pressure as a result of the engagement of the nose of the catch 105 beneath the boss 120, thereby ensuring hermetic closure of the window.

b. if the operating lever 111 is displaced upwards by onequarter of a revolution in the direction of the arrow F as shown in FIGS. 19 and 21, the nose of the catch 105 comes opposite to the recess 119a. At the same time, the auxiliary locks 107a are moved to the engagement" position and the auxiliary locks 1071) are moved to the disengagement position. Finally, the additional'locking member 127 is lifted above the crossmember 128. if the operating lever 11] is pulled towards the user, the catch 105 is released, thereby permitting the downward pivotal displacement of the window pane 102 which is now retained only by the auxiliary locks 107a which perform the function of hinges: this is the condition of opening about a horizontal axis in which the inward swing of the pane 102 is limited by the angular opening of the articulated arm 151.

. if the pane 102 is thrust back against the casing 101, the nose of the catch 105 comes into position opposite to the recess 119a and the stud 116 engages in the bore 122, with the result that the link-rod system B is coupled with the catch 105. By rotating the operating lever 111 in the direction G up to the horizontal the nose of the catch 105 is engaged beneath the boss 120, thereby compressing the seal 104. At the same time and under the action of the link-rod system B, the movable pins 145 of the auxiliary locks [07b engage to half the distance of travel within the corresponding hinge components 143 and the movable pins of the auxiliary locks 107a withdraw to half the distance of travel, with the result that all the auxiliary locks 107 are located in the semiengagement" position. Finally, the additional locking member 127 returns opposite to the crossmember 128, whereupon the window is closed.

d. if the operating lever 11] is then displaced downwards by one quarter ofa revolution in the direction G as shown in FIGS. 20 and 22, the nose of the catch 105 comes. opposite to the recess 11%; the auxiliary locks 107a are brought to the disengagement" position and the auxiliary locks 10717 are brought to the engagement position. The additional locking member 127 is displaced downwards below the crossmember 128. The window can then be opened in a movement of rotation about a lateral vertical axis.

In this method of operation, it is essential to note on the one hand that the catch 105 cooperate with the link-rod system B only if the pane 102 is in contact with the casing 101 and, on the other hand, that it is impossible to change over from one mode of opening to the other without completely closing the window. These technical effects of the locking device eliminate any danger of mishandling which would otherwise result, for example, in falling of the pane 102.

The locking device in accordance with the invention also makes it possible to provide windows having two modes of opening in which all operations are carried out by means of a single handle and in which the system of connection between the different components which serve to close the window is Finally, the simplicity and ruggedness of the device permit of economic manufacture and maintenance and also guarantee a long service life.

I claim:

1. In a device for locking a movable leaf such as a window pane to a fixed frame, comprising a main lock having a catch mounted on the leaf and a staple fixed in oppositely facing relation on the frame, a handle mounted on the leaf and 7 adapted to control the catch and at least one auxiliary lock; the improvement comprising motion-transmission means carried by said frame and connected on the one hand to said auxiliary lock and on the other hand to connection means mounted within said staple and adapted to be operated by said catch, whereby said auxiliary lock is remotely operated upon actuation of said handle.

2. A locking device as claimed in claim 1, said connection means comprising a slide block mounted within the staple, said motion-transmission means being connected to said slide block and to a rocking latch which forms part of the auxiliary lock.

3. A locking device as claimed in claim 2, and means for returning the rocking latch to the open position, the main lock having a staple engagement slot having a boss for arresting the catch in the closed position.

4. A locking device as claimed in claim 2, said slide block having a shaped recess for accommodating the extremity of 'the catch.

5. A locking device as claimed in claim 1, said motion-transmission means comprising a sheathed sliding cable which is connected to the movable member of the auxiliary lock.

6. A locking device as claimed in claim 1, said motion-transmission means being disposed within a rebate formed in the frame.

7. A locking device as claimed in claim 2, each rocking latch having a separate restoring member comprising a spring.

8. A locking device as claimed in claim 2, said motion-transmission means comprising a link-rod system.

9. A locking device as claimed in claim 8, and a single spring mounted within the staple and compressed by the slide block during the locking action for returning said rocking latch to the open position.

10. in a device for locking a movable leaf such as a window pane to a fixed frame, comprising a main lock having a catch mounted on the leaf and a staple fixed in oppositely facing relation on the frame, a handle mounted on the leaf and adapted to control the catch and at least one auxiliary lock; the improvement comprising motion-transmission means carried by saidframe and connected on the one hand to said auxiliary lock and on the other hand to a slide block mounted within said staple and adapted to be operated by said catch, whereby said auxiliary lock is remotely operated upon actuation of said handle.

11. A device as claimed in claim 1, for locking a leaf which is pivotable selectively about a horizontal axis and about a vertical axis, wherein a first set of auxiliary locks and a second set of auxiliary locks are disposed on a horizontal side and on a vertical side of the frame respectively, the auxiliary locks of each set comprising hinge means defining one of said axis and having a movable member which is connected to said motion-' transmission means carried by the frame, and wherein means are provided in the main lock for defining two open positions and a closed position thereof, whereby when the main lock is in one of said open positions the auxiliary locks of the first set are in a closed position and the auxiliary locks of the second set are in an open position so that the leaf can be pivoted about said horizontal axis and when the main lock is in the other of said open positions the leaf can be pivoted about said vertical axis.

12. A device as claimed in claim 10, for locking a leaf which is pivotable selectively about a horizontal axis and a vertical axis, wherein a first set of auxiliary locks and a second set of auxiliary locks are disposed on a horizontal side and on a vertical side of the frame respectively, each auxiliary lock compris-- ing two hinge components defining one of said axis, one component being secured to the leaf and the other component being secured to the frame, and a movable pin slidably mounted in the hinge component which is secured to the frame so as to cooperate with the hinge component which is secured to the leaf, said movable pin being connected to said motion-transmission means, and wherein the staple of the main lock has a cover plate in which are formed two recesses and a boss projecting therebetween toward the interior of the staple so as to define two open positions and a closed position of the main lock respectively, the catch carrying a stud which is engageable into a bore formed in said slide-block and the connections being such that the forcible engagement of the catch in the closed position of the main lock between said boss and the slide-block causes the leaf to be applied under pressure against a flexible seal which is disposed between the leaf and the frame, whereby when the main lock is in one of said open positions, the auxiliary locks of the first set are in a closed position and the auxiliary locks of the second set are in an open position so that the leaf can be pivoted about said horizontal axis, and when the main lock is in the other of said openpositions, the leaf can be pivoted about said vertical axis.

13. A locking device as claimed in claim 12, wherein the catch of the main lock is integral with a rack housed in a support plate on the leaf and engaging with a toothed sector which is secured to the handle.

14. A locking device as claimed in claim 12, wherein, in the closed position of the main lock, the movable pin of each auxiliary lock is engaged to half the distance of travel within the hinge component which is secured to the leaf, in one of said two open positions of the main lock the movable pin of each auxiliary lock of one of said sets is fully engaged in said hinge component and in the other of said open positions of the main lock said movable pin is fully disengaged from the hinge component.

15. A locking device as claimed in claim 12, wherein an additional locking member connected to said motion-transmission means is provided for engaging a crossmember which is secured to the top portion of the leaf when the main lock is in the closed position.

Claims

1. In a device for locking a movable leaf such as a window pane to a fixed frame, comprising a main lock having a catch mounted on the leaf and a staple fixed in oppositely facing relation on the frame, a handle mounted on the leaf and adapted to control the catch and at least one auxiliary lock; the improvement comprising motion-transmission means carried by said frame and connected on the one hand to said auxiliary lock and on the other hand to connection means mounted within said staple and adapted to be operated by said catch, whereby said auxiliary lock is remotely operated upon actuation of said handle.

4. A locking device as claimed in claim 2, said slide block having a shaped recess for accommodating the extremity of the catch.

10. In a device for locking a movable leaf such as a window pane to a fixed frame, comprising a main lock having a catch mounted on the leaf and a staple fixed in oppositely facing relation on the frame, a handle mounted on the leaf and adapted to control the catch and at least one auxiliary lock; the improvement comprising motion-transmission means carried by said frame and connected on the one hand to said auxiliary lock and on the other hand to a slide block mounted within said staple and adapted to be operated by said catch, whereby said auxiliary lock is remotely operated upon actuation of said handle.

11. A device as claimed in claim 1, for locking a leaf which is pivotable selectively about a horizontal axis and about a vertical axis, wherein a first set of auxiliary locks and a second set of auxiliary locks are disposed on a horizontal side and on a vertical side of the frame respectively, the auxiliary locks of each set comprising hinge means defining one of said axis and having a movable member which is connected to said motion-transmission means carried by the frame, and wherein means are provided in the main lock for defining two open positions and a closed position thereof, whereby when the main lock is in one of said open positions the auxiliary locks of the first set are in a closed position and the auxiliary locks of the second set are in an open position so that the leaf can be pivoted about said horizontal axis and when the main lock is in the other of said open positions the leaf can be pivoted about said vertical axis.

12. A device as claimed in claim 10, for locking a leaf which is pivotable selectively about a horizontal axis and a vertical axis, wherein a first set of auxiliary locks and a second set of auxiliary locks are disposed on a horizontal side and on a vertical side of the frame respectively, each auxiliary lock comprising two hinge components defining one of said axis, one component being secured to the leaf and the other component being secured to the frame, and a movable pin slidably mounted in the hinge component which is secured to the frame so as to cooperate with the hinge component which is secured to the leaf, said movable pin being connected to said motion-transmission means, and wherein the staple of the main lock has a cover plate in which are formed two recesses and a boss projecting therebetween toward the interior of the staple so as to define two open positions and a closed position of the main lock respectively, the catch carrying a stud which is engageable into a bore formed in said slide-block and the connections being such that the forcible engagement of the catch in the closed position of the main lock between said boss and the slide-block causes the leaf to be applied under pressure against a flexible seal which is disposed between the leaf and the frame, whereby when the main lock is in one of said open positions, the auxiliary locks oF the first set are in a closed position and the auxiliary locks of the second set are in an open position so that the leaf can be pivoted about said horizontal axis, and when the main lock is in the other of said open positions, the leaf can be pivoted about said vertical axis.