US2406459A - Closure fastener - Google Patents

Description

G. R. GIBSON GLOSURE FASTENER Filed Nov. 16, 1944 Aug. 27, 1946.

Patented Aug. 27, 1946 CLOSURE FASTEN ER George Gibson, BrookfelcL-Ohio, assgnor to The General Fireproofing Company, Youngstown, Ohio, a corporation of hio Application November 16, 1944,`seria1No.f563,.6s2

This invention relates to fasteners for swinging or sliding closures, such as doors, windows, drawers and the like.

In many instances it is desirable that a closure have a frame, the stiles or equivalent elements ofwhich are of narrow width. For example, in the case of hospital windows and hospital doors having transparent panels, it is desirable that the stiles be of as narrow width as practicable in order that the windows and doors may admit the greatest possible amount of light especially in instances where the doors or windows are of narrow width. Also, it is quite desirable in many instances to provide a closure fastener embodying three latch or lock bolts, one at each end or side of the closure and the other at an intermediate point, all operable by a common mechanism, and to mount said latch or lock bolts and their operating mechanism in a door or window stile or its equivalent.

Accordingly, the general object of the present invention is to provide a closure fastener which embodies three latch or lock bolts and a common operating mechanism therefor, and which is of quite narrow Width, whereby it may readily be mounted in a door or window stile or equivalent element of quite vnarrow width in any instance where that may be desirable.

To the end ofnaccomplishing the aforesaid general purpose in a simple, practical manner, a special object of the invention is to provide a latch or lock bolt which is pivoted for swinging movement between projected and retracted,

5 Claims. (Cl. 292-39) Figures 3, 4, 5 and 6 are cross sections on the lines 3 3, 4 4, 5--5 and 6--6, respectively, of Figure 1. n

Referring to the drawing in detail, A designates a portion of a closure frame and B designates a portion of an associated closure which, for present purposes, may be considered as a door hinged at one side for swinging movement between open and closed positions.

The door B includes a frame b and a vpanel b' which, in the present instance, is illustrated as being of transparent material, although it may be of any other material. In any event, the frame b includes top and bottom cross members, only portions of which are shown, and vertical side members or stiles only the one of which at the free edge of the door is shown. These members preferably are of duplicate construction. They may, however, be of unlike construction. In any event, the stile at the free edge of the door and with which the presentv invention particularly is concerned, is hollow andv of narrow width and is closed at its outer and inner sides by walls I0 and I I, respectively,` and at its outer edge by a wall I2 which constitutes the free vertical edge of the door. On the other hand, said stile which is designated as b" is provided at its inner edge with a slotto accommodate the related marginal portion of the panel b'.

While the stile b" may be of any suitable construction, it preferably i5 formed from sheet metal, its wall I D and I2 being, for example, in-

` tegral with one another, as shown, and its wall latching or locking and unlatching or` unlocking positions, respectively, and which is of a novel form whereby it is swung tooperatively engage its related keeper in response to closing`move ment of the closure. Y

.Another special object of the invention is to provide a narrow-width, common operating mechanism for three latch or lock bolts which is of simple, `practical construction, easy to install and thoroughly reliable and satisfactory in use. With the foregoing and other objects in view,

which will become more fully apparent as the' nature of the invention is better understood, Vthe same consists in a closure fastener embodying the novel features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawing and defined in the appended claims.

In the accompanying drawing, wherein like characters of reference denote corresponding parts in the different views:

Figure 1 is a vertical section through a portion of a closure equipped withV fastening means in accordance with the invention.

f Figure 2 is a vertical section on the line 2-2 of Figure 1; and

Il being, for example, separate from its walls I0 and I2v to permit ready installation of the panel b'. In this connection and, according to the specific constructionillustrated inthe present instance, the marginal portion of the edge wall l2 at the inner side ofthe stile is turnedY or lock bolts and their operating means presently A to be described. v y Y 4 The channel member I5 is approximately coextensive in length with the stile b and includes an outer side wall I6 disposed against andv spot welded or lotherwise suitably secured to the outer sidewall I0 of the stile b, and inner and outer edge walls IT and i8, respectively, extending from the Wall I6 toward rthe inner sidel of the stile and having their free marginal'por- 'tions turned toward the outer or free edge ofV the stile in the form of flangesI 9 and 20, respect tively. The'lange 20 is yspaced inwardly from'v to neatly-accommodate the said outer marginal Vof the inner side wall II of the stile, thus to" cooperate with said flange I3 to provide a slot portion of said inner side wall II. On the other'V hand, the flange I9 underlies the inner side wall II of the stile near theV .inturned inner edgethereof t serve as a support for the latter and n also to receive fasteners such 'as screws 2i by means of which said inner side wall I I is removably secured in place. l

Mounted vin the upper end portion of the channel member I for free longitudinal sliding movementrelative thereto is a latch or lock bolt 22, the upper end portion of which ispro-iectab-le above and retractable to or below the top edge of the door through an opening inthe top ,cross member of the door frame. Similarly mounted in theloiwer end portion of the channel member i5 is a latch or lock bolt 23 the lower end portion of which is projectable below and retractable `to or above the` lower edge vof the door through an opening in the bottom cross member of the door frame.V Attheirinner sides the end portic-nsofuthe latch ory lock bolts 2?. and 23 are beveled in Vaccordance `with known practice so that if they are in their projected positions when the door is being' closed-they will be automatically retracted responsive to closing vmovement of the doorY due tothe wedgingor cam `action of their beveled inner sides withtheir keepers which may be ofY any suitable Vform and lwhich kare designated as 25.

At a suitable point intermediate the latch or.

lock-bolts 22. and 23, .a third latch or lock bolt 25 provided,Y This latch orlock bolt 25 is mounted for swinging movementin the plane of the door upona pivot pin 2li which extendsrtransversely of the door at right angles thereto and which is located adjacentV to the edge wall I2-of the stile b", ,said pin being mounted at its ends, foreX- I amplain openings in the side `wall I5 and the ilange I3 oi said stile b.

Thelatch orlock bolt 25 is pivoted intermediate its ends and adjacent to oneedge thereofY upon the pin 25 and includesa latching or locking portion 2T which, by ,rotation of said bolt in one direction through an angle of approximately Y 'net-y degrees, is proiectable to a latching or locking position Yin which it extends beyond the stile wall I2; i. e., beyond the free 'edgeof the, door, as

shown, and which, yby krotation of said locking bolt in the opposite directionthrough. an angle of approximately ninety degrees, is retractable to an be in its projected position duringclosing of the door, the beveled inner face of said portion will,

Yby reason of its wedging o-r cam action against the related keeper, designated as 28, cause said portion to swing to itsretracted position so as to clear the keeper for subsequent projection behind latter. The keeper 28 may b e of anysuitrable fornrandis illustrated in the present inl stance as being comprised by va portion of the door A 'unlatched or unlocked position in which it is dis- Y latch or lock bolts 22 and 23, respectively.

i is closed.

Referring now to the common operating means Yfor the latch or lock bolts 22, 23 and 25, 29 designates a block which is longitudinally slidable in the channel member I5 and which has therein a slot 30 into which extends the free, inner end of a lever arm 3| which, at its outer end, is pivoted to a supportingr bracket 32 for swinging movement to shift said block 29 longitudinally. The bracket 32 is fixed to the stile b" at the outer side thereof and asuitable handle 33 is fixed with respect to the armv 3i lfor effecting swinging movements thereof. Y, 4 k According to the specific Yarrangement illustrated inthe drawing, a vpairof blocks 34, 34 are slidably mounted in the channel member I5 above and below the blockV 29, respectively, and have fixed thereto and extending upwardly anddownwardly therefrom, respectively, rods 35, 35. To the upper and lower ends, respectively, of these rods are fixed tubes 36, 35, and in the upper and lower ends, respectively, of said tubes are slidably mountedv stems 3l, 3T, which are xed to and extend inwardly from the inner ends of the Fixed in the side walls of each tube 35 and ex tending through a longitudinally elongated slot S38 in the related stem 3l is'a pin 39, while fixed and extending ythrough longitudinally elongated" slots 4o in each tube 35 is a related screw orpin 4 I. The screws or pins 4I, il are spaced inwardly from the inner ends of the stems 31, 3l, respectively, and between each screw or pin Vi-Ik and the inner end of the related 'stem' 3l is interposedY an expansion 4spring 42( Accordingly, said springs 42, l2 tend constantly to urge the tubes v35, 36 outwardly to their limits of outward movement, as determined by engagement ofthe tube walls at the inner ends of the slots 43 with the screws or pins 4i, and also to urgethelatch or lock bolts 22 and' 23 coi'istantly outward to .their limits of outward movement as determinedby engagement oi' the walls at the inner ends of the slots v38 in the stems 3l with the pinsi. In this connection, the constructionobviously is such `that if the latch orlockY bolts 22 and 23 are projected as shown` in lFigure 1, they will be retracted by inward movement ofthe rods 35, 35 and the tubes 36, 36. At the sameY time, the construction is such-that even though the rods 35 andthe tubes .35, -35 are not movedlinwardly, the latch or lock bolts22 and 23 are free to be moved inwardly against the springsZ, 42. vIn shortthedescribed construction provides Yfor positively retractinglthe latch or lock vbolts 22, 23 when itis desired to` open the door` and, at the same time, provides for automatic retraction of said bolts by engagement of their beveled inner faces with theirrelated keepers topermit the door to be closed, as well as for subsequent spring projection of said bolts totheir door latching or locking positions when the door The block 25 is Sethereabove bya bar 43. On the other hand,

the vblock 29is connected with the block 34 therek44 Vand 45. The pinion 45 mayappropriately be rigidly Connected with the bloes J mounted in a suitable frame 41 suitably fastened in the channel member It. In any event, it is apparent that the springs 42 tend constantly-to project both latch or lock boli-s 22 and 23 and to shift the block Z9 upwardly, and that by downward movement of said block 2S, both latch or lock bolts 22 and 23 will be retracted. The block 2B is, of course, shiftable downwardly to retract the bolts 22 and 23 by means of the handle 33 operating through the lever arm 3 l.

The lock or latch bolt is located between the block 29 and the upper biock 34 and, inwardly of its pivot pin it, has projecting laterally therefrom a pin 4l" over which extends a finger 48 which projects laterally from the bar 43. Accordingly, when the bar 43 is shifted downwardly, the finger G8 acts upon the pin 4l to rotate the latch or lock bolt 25 to its retracted position. On the other hand, a suitable spring 49 is provided to rotate said bolt 25 to its projected position when the bar 43 and the finger 4a are moved upwardly. Obviously, the finger 43 acts as a'stop engageable by the pin 4i' to limit rotation of the bolt 25 beyond its projected position.

summarizing, it will be apparent that normally the three latch or lock bolts 22, 23 and 25 are projected; that they will be urged inwardly automatically during and in response to closing movement of the door to permit the door to close and to permit them to subsequently be projected behind their keepers; that they will be projected behind their keepers when the door is closed; that all of them will be retracted to permit the door to be opened by the mere act of swinging the handle 33 in a direction to swing the lever arm 3| downwardly, and that upon release of said handle they will be projected by the springs 42 and 49. In this connection, it will be noted that the handle 33 extends downwardly relative to the lever arm 3| so that it is adapted to be pulled to retract the bolts 22, 23 and 25 and also to open the door. Further in this connection it is pointed out that a lock 50 may be associated with the lever arm 3l, the handle 33 and the bracket as shown so that said lever arm and handle may be locked against swinging movement to thus lock the door in its closed position.

From the foregoing description considered in connection with the accompanying drawing, it is believed that the construction and mode of operation of the present closure fastening means Will be readily understood and its advantages appreciated. Y It is desired to point out, however, that while only a single, specific structural embodiment of the invention has been illustrated .and described, the same is readily capable of embodiment in specifically different structures within its spirit and scope as dened in the appended claims.

I claim:

l. Closure fastening means comprising a latch bolt carried by the closure for linear projection and retraction relative thereto and having its rear face beveled so that by engagement thereof with a keeper during closing of the door the bolt is retracted, a stein extending inwardly from said bolt and having therein a slot extending longitudinally thereof, a tube in the outer end portion of which said stem is slidably mounted a pin fixed with respect to said tube and extending'through said slot, said tube having therein a slot extending longitudinally thereof, a pin extending Vthrough the slot in said tube and fixed with respect to the closure, an expansion spring disposed within said tube and interposed between said secondposite directions, respectively, a block carried by the closure and shiftable relative thereto in the same directions as said bolts, connections between said block and said bolts whereby shifting of said block in one direction retracts both bolts and whereby said bolts are retractable relative to said block without shifting the latter, means for manual actuation to shift said block in said direction, and springs means for projecting said bolts and for shifting said block in the opposite direction.

3. Closure fastening means comprising a pair of latch bolts carried'by the closure for linear projection and retraction relative thereto in opposite directions, respectively, a block carried by the closure and shiftable relative thereto in the same directions as said bolts, lost-motion connections between said block and said bolts whereby shifting of said block in one direction retracts said bolts and whereby said bolts are retractable independently of any shifting movement of said block, means for manual actuation to shift said block in a direction toretract said bolts, `and springmeans for projecting said bolts and for shifting said block in the opposite direction.

4. Closure fastening means comprising a` pair of latch bolts carried by the closure for linear projection and retraction relative thereto in opposite directions, respectively, a blockcarried by the closure and shiftable relative thereto in the same directions as said bolts, a connection between said block and one of said bolts whereby shifting of said block in one direction shifts said bolt in the same direction to a retracted position, a rack and pinion connection between said block and the other bolt whereby shifting of said block in said direction shifts said other bolt in an opposite direction to its retracted position, and spring means for projecting said bolts and for shifting said block Vin the opposite direction.

5. Closure fastening means comprising a pair of latch bolts carried by the closure for linear projection and retraction relative thereto in opposite directions, respectively, a stem extending inwardly from each bolt and having therein a slot elongated longitudinally thereof, a pair of tubes in the outer end portions of which said stems are slidably engaged, respectively, a pin fixed with respect to each tube and extending through the slot in the related stem, each tube having therein a slotelongated longitudinally thereof, a pin extending through each tube slot and xed with respect to the closure, an expansion spring in each tube interposed between each second-mentioned pin and the adjacent end of the related stem whereby both tubes and both bolts are urged constantly outwardly and whereby said bolts are retractable independently of inward movement of said tubes, the rear faces of said bolts being beveled so that by their engagement with related keepers during closing of the door said bolts are retracted to clear the keepers, and means connecting said tubes and manually operable to move them simultaneously inwardly to retract said bolts.

GEORGE R. GIBSON.

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