CN101745690B

CN101745690B - Bench saw

Info

Publication number: CN101745690B
Application number: CN2008101886781A
Authority: CN
Inventors: 吉绍山; 沃伦·布朗
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2008-12-19
Filing date: 2008-12-19
Publication date: 2012-03-28
Anticipated expiration: 2028-12-19
Also published as: CN101745690A

Abstract

The invention relates to a bench saw, which comprises a base and a working bench arranged on the base, a rotary adjusting handle is arranged on the base and drives a saw blade adjusting mechanism in the base to adjust the deflection angle or height position of a saw blade, the bench saw is also provided with an indicating device used for indicating the deflection angle or height of the saw blade, the indicating device comprises a transmission device, an indicator and at least one angle scale or one height scale. The transmission device and the indicator are connected with the saw blade adjusting mechanism, the angle scale or the height scale is parallel to the working bench and is arranged on the working bench, and the indicator indicates the scale mark on the angle scale or the height scale. Since the mark scale of the saw blade is directly arranged on the working bench of the bench saw and the mark is indicated by the indicating device, the user can conveniently read the deflection angle or height of the saw blade, thereby facilitating the improvement of readability of relevant parameters.

Description

Bench saw

Technical field

The present invention relates to a kind of desktop-type powered instrument, especially a kind of bench saw, the saw blade deflection angle on more particularly a kind of bench saw or height indicating device.

Background technology

Bench saw in use, the user can regulate the deflection angle of saw blade with respect to work top as required, perhaps saw blade is realized the governor motion of the base interior that is arranged on bench saw of this regulative mode with respect to the height of work top., be used to that the user is understood and control the deflection angle or the height of current bench saw saw blade as the supporting auxiliary equipment of governor motion to the indicating device of deflection angle or height, make things convenient for the user to regulate.

The comparatively ripe scheme of industry is arranged on indicating device near the rotation adjusting handle; Promptly be provided with angle scale around the rotation adjusting handle; This angle scale is curved usually, be close on user's operating surface of pedestal, and the rotation adjusting handle is provided with indicator.Indicator is generally sagittate plastic parts, and arrow can point on angle scale.Along with moving of rotation adjusting handle, indicator also moves and on angle scale, indicates the deflection angle of current saw blade thereupon producing.

But; Because the rotation adjusting handle operated by rotary motion of bench saw is below work top, the user usually is to lean over just can see angle scale when regulating; Therefore with operational comfort; This mode is also inconvenient, causes the user to be absorbed in when regulating easily and has ignored the saw blade on the work top, has certain potential safety hazard.

For this reason, industry proposes some kinds of schemes to address this problem.Disclosed a kind of saw blade deflection angle indicating device of bench saw among U.S. Pat 7137327B and the patent application US20060116787A; The pedestal of its bench saw is provided with angle scale; The scale face of this angle scale is convenient to user's observation vertically upward, and the rotation adjusting handle is provided with laser designator.When the user carries out angular adjustment; Laser designator is launched laser beam and is projected on the angle scale, and when the user operated the rotation adjusting handle, laser designator was rotated thereupon; Laser beam also will produce on angle scale and move, thereby indicate the deflection angle of current saw blade accurately.

But the angle scale in this scheme is arranged on the pedestal, and is positioned at the below of rotation adjusting handle, and the sight line of its distance users is far away also lower, accurately reading of user is exerted a certain influence, so and be not suitable for using.

Disclosed another kind of scheme among the U.S. Pat 6263584B, it is provided with the graduated scale of a semicircular in shape on work top, and the zero graduation line simultaneously, is connected with a laser designator over against saw blade on saw blade.After saw blade was conditioned mechanism's adjusting generation deflection, laser designator is deflection thereupon also, thereby laser beam is projected on the graduated scale to indicate the deflection angle of saw blade.

But in this scheme, the volume of angle scale is bigger, has occupied the usable floor area of more work top, and laser designator is connected on the saw blade, the influence of being vibrated, and situation such as be easy to be damaged.

Therefore, prior art is necessary further improvement in fact.

Summary of the invention

The object of the present invention is to provide a kind of bench saw, can make user's direct convenience read the deflection angle or the height of saw blade from work top.

For realizing above-mentioned purpose; The invention provides a kind of bench saw; Comprise pedestal and be arranged on the work top on the pedestal; Pedestal is provided with the rotation adjusting handle, and the rotation adjusting handle drives is positioned at the deflection angle or the height and position of the saw blade adjustments mechanism adjusting saw blade of base interior, and said bench saw also is provided with deflection angle or the height of indicating device in order to the indication saw blade; It comprises transmission device and the indicator that is connected with saw blade adjustments mechanism; Said indicating device also comprises parallel with work top, and be arranged on angle scale and altitude scale on the work top at least the two one of, described indicator is the indicator scale scale on angle scale or altitude scale.

As the improvement to such scheme, said indicator is a laser designator, its launch laser beam and be projected in angle scale or altitude scale on.

What run through on the said work top is provided with first elongated slot and second elongated slot; The bearing of trend of said first elongated slot belongs to the plane perpendicular to saw blade; The bearing of trend of said second elongated slot is parallel to plane, saw blade place; Said angle scale is housed in first elongated slot, and said altitude scale is housed in second elongated slot.

Said angle scale and altitude scale adopt trnaslucent materials.

Said rotation adjusting handle adopts the Wheel-type structure, and the axle center of wheel disc is connected with a final drive shaft, and said final drive shaft is connected with the saw blade adjustments mechanism of base interior.

Said saw blade adjustments mechanism comprises and is parallel to first pivotal axis that plane, saw blade place is provided with; Be connected on first pivotal axis and can be around first suspension of first pivotal axis rotation, and with the first suspension pivotal connection and can be with respect to second suspension of first suspension rotation.

The motor that drives saw blade is connected on second suspension, and first suspension then links together with final drive shaft.

Said transmission device comprises that being parallel to final drive shaft is arranged on first connecting axle on first suspension; First chute that is provided with along first elongated slot on the work top in the inside of pedestal; Can be along first slide block in first chute that is arranged on of first chute slip, first slide block is connected with first connecting axle through a first connecting rod.

Said transmission device comprises perpendicular to final drive shaft and is arranged on second connecting axle on second suspension; Second chute that is provided with along second elongated slot on the work top in the inside of pedestal; Can be along second slide block in second chute that is arranged on of second chute slip, second slide block is connected with second connecting axle through a second connecting rod.Wherein, first pivotal axis and second chute link together, and second slide block that in second chute, slides also is connected with first pivotal axis simultaneously, and can slide along first pivotal axis, and second slide block can also rotate around first pivotal axis.

Said indicator is arranged on the slide block perpendicular to work top.

Because the graduated scale of saw blade is set directly on the work top of bench saw among the present invention; And the mode by the laser indication indicates; Thereby make the user can read the deflection angle or the height of saw blade easily, help improving the readability of relevant parameter.

Description of drawings

Fig. 1 is the stereogram of bench saw in the preferred embodiments of the present invention.

Fig. 2 is the sketch map of the angle scale on the work top of bench saw.

Fig. 3 is the sketch map of the altitude scale on the work top of bench saw.

Fig. 4 is the interior saw blade adjustments mechanism of bench saw pedestal and the sketch map of saw blade height indicating device, not shown saw blade and pedestal.

Fig. 5 a is the structural representation of saw blade deflection angle indicating device in the bench saw, and at this moment, slide block is positioned at initial position, i.e. the zero deflection angle position.

Fig. 5 b is the motion process sketch map of saw blade deflection angle indicating device, and at this moment, slide block moves to the middle deflection angle position between initial position and maximum deflection angle position.

Fig. 5 c is the motion process sketch map of saw blade deflection angle indicating device, and at this moment, slide block moves to 45 maximum degree deflection angle positions.

Fig. 6 is the use reference diagram of the saw blade height indicating device of bench saw, not shown saw blade and pedestal.

Fig. 7 a is positioned at the sketch map of initial position for the rotation adjusting handle, and at this moment, saw blade is positioned at the zero deflection angle position with respect to work top.

Fig. 7 b is positioned at the sketch map in centre position for the rotation adjusting handle, and at this moment, saw blade is with respect to work top deflection 35 degree angles.

Fig. 7 c is positioned at the sketch map of maximum position for the rotation adjusting handle, and at this moment, saw blade is with respect to work top deflection 45 degree angles.

Fig. 8 a is the sketch map that laser beam is projected in the initial zero graduation position on the angle scale.

Fig. 8 b is the sketch map that laser beam is projected in the degree of 35 on angle scale deflection angle position.

Fig. 8 c is the sketch map that laser beam is projected in the maximum 45 degree deflection angle positions on the angle scale.

Related elements reference numeral in the diagram is following:

1, pedestal 2, work top 3, saw blade

4, angle scale 5, altitude scale 6, saw blade adjustments mechanism

7, motor 8, indicator 10, user's operating surface

11, regulating handle 12, final drive shaft 13, arc

14, locking switch 21, saw blade groove 22, first elongated slot

23, second elongated slot 41, first chute 42, first slide block

43, first connecting rod 51, second chute 52, second slide block

53, second connecting rod 61, first pivotal axis 62, first suspension

63, second suspension 64, second pivotal axis 621, first connecting axle

631, second connecting axle

The specific embodiment

Below in conjunction with accompanying drawing and specific embodiment the present invention is done further explain.

See also Fig. 1, a kind of bench saw comprises pedestal 1 and the work top 2 that is arranged on pedestal 1 top.Wherein, pedestal 1 roughly is cube structure, and the one side of operating towards the user is user's operating surface 10.Along direction perpendicular to user's operating surface 10; On work top 2, offer saw blade groove 21; Saw blade 3 is set in the saw blade groove 21, and by the saw blade adjustments mechanism 6 (stating after the detailed structure) that is positioned at pedestal 1 inside, can make saw blade 3 with respect to work top 2 deflections or up-down.

User's operating surface 10 of pedestal 1 is provided with rotation adjusting handle 11, supplies the user to manipulate.Rotation adjusting handle 11 adopts the Wheel-type structure usually, and the axle center of wheel disc is connected with a final drive shaft 12, and final drive shaft 12 is connected with pedestal 1 inner saw blade adjustments mechanism 6.On user's operating surface 10, also be provided with arc 13 and get into pedestal 1 in order to the backstop dust.Rotation adjusting handle 11 moves under user's operation, and between the 45 degree angles, promptly saw blade 3 is zero to unspecified angle between 45 degree with respect to work top 2 deflections between zero for the scope that moves.In fact, rotation adjusting handle 11 is to drive final drive shaft 12 to move, and at this moment, final drive shaft 12 drives the saw blade adjustments mechanism 6 that is positioned at pedestal 1 inside again and rotates, and further makes saw blade 3 produce deflections.After saw blade 3 moved into place, like 45 degree deflection angles, the user can lock final drive shaft 12 through the locking switch 14 that is arranged on the arc 13.Like this, the user just can realize the deflection of saw blade 3 through rotation adjusting handle 11.

Much more no longer the spindle lock mode that the locking switch 14 that is adopted is in the present invention used always for industry can certainly be used the mode that other realize locking, to do description here.

In order to make the user can conveniently recognize the deflection angle or the height of current saw blade 3; On work top 2, also offer first elongated slot 22 and second elongated slot 23 perpendicular to what work top 2 ran through; And in first elongated slot 22, be parallel to work top 2 and be provided with angle scale 4; As shown in Figure 2, the meter full scale that angle scale 4 has been shown among the figure is from zero degree to four 15 degree.The work top 2 that is parallel to same in second elongated slot 23 is provided with altitude scale 5, and is as shown in Figure 3.The user's reads for ease; First elongated slot 22 is perpendicular to plane, saw blade 3 place; Second elongated slot 23 is then along the bearing of trend setting of saw blade groove 21, and first elongated slot 22 and second elongated slot 23 all are positioned near the position of user's operating surface 10 and observe to make things convenient for the user.

See also Fig. 4; Set inside at pedestal 1 (figure does not show) has saw blade adjustments mechanism 6; Comprise and be parallel to first pivotal axis 61 that saw blade 3 (figure does not show) plane, place is provided with; Be connected on first pivotal axis 61 and can be around first suspension 62 of first pivotal axis, 61 rotations, and with first suspension, 62 pivotal connections and can be with respect to second suspension 63 of first suspension, 62 rotations.The motor 7 that drives saw blade 3 is connected on second suspension 63; First suspension 62 then links together with final drive shaft 12; When the user pulls rotation adjusting handle 11 when arc 13 moves; With first pivotal axis 61 is the axle center, and first suspension 62 and second suspension 63 can drive saw blade 3 around 61 rotations of first pivotal axis.Link together through second pivotal axis 64 between first suspension 62 and second suspension 63 perpendicular to first pivotal axis 61; And rotary manipulation through rotation adjusting handle 11; Second suspension 63 is rotated around second pivotal axis 64 with respect to first suspension 62, and then the saw blade 3 that is connected the motor 7 on second suspension 63 and driven by motor 7 is played the effect of regulating height.

Wherein, the mode that rotation adjusting handle 11 is regulated second suspension 63 through final drive shaft 12 adopt industry common rack-and-pinion mode, no longer do further detailed description here.

See also Fig. 5 a to Fig. 5 c,, in bench saw of the present invention, also be provided with the deflection angle indicating device in order clearly to indicate the deflection angle of saw blade 3.In Fig. 5,, the height indicating device and second suspension 63 have been removed for the ease of explanation deflection angle indicating device.The deflection angle indicating device here is except comprising the aforesaid angle scale 4 that is arranged on the work top 2; Comprise that also being parallel to final drive shaft 12 is arranged on first connecting axle 621 on first suspension 62; First chute 41 that is provided with along first elongated slot 22 on the work top 2 in the inside of pedestal 1; Can be connected with first connecting axle 621 through a first connecting rod 43 along first slide block, 42, the first slide blocks 42 that are arranged in first chute 41 that first chute 41 slides, thereby when first suspension 62 rotates around first pivotal axis 61; By the gearing of first connecting axle 621 and first connecting rod 43, first slide block 42 is slided along first chute 41.On first slide block 42, be provided with indicator 8 towards work top 2.Indicator 8 among the present invention is a laser designator, and its laser beam of launching is projected on the angle scale 4 on the work top 2, thereby can clearly indicate the deflection angle of current saw blade 3 with respect to work top 2.Need to prove that angle scale 4 adopts translucent material.

In Fig. 5 b, first slide block 42 moves to the centre position between initial position and maximum position along first chute 41, and at this moment, first suspension 62 has also rotated certain angle around first pivotal axis 61.And for example shown in Fig. 5 c, first slide block 42 slides into the position of the leftmost side along first chute 41, and first suspension 62 of this moment rotates to maximum position around first pivotal axis 61, and the saw blade 3 of expression this moment deflects to 45 degree angles with respect to work top 2.

Please consult Fig. 4 and Fig. 6 in the lump,, in bench saw of the present invention, also be provided with the height indicating device,, removed the deflection angle indicating device for the ease of explanation height indicating device in order clearly to indicate the height of saw blade 3.The height indicating device here is except comprising the aforesaid altitude scale 5 that is arranged on the work top 2; Also comprise perpendicular to final drive shaft 12 and be arranged on second connecting axle 631 on second suspension 63; Second chute 51 that is provided with along second elongated slot 23 on the work top 2 in the inside of pedestal 1; Can be connected with second connecting axle 631 through second connecting rod 53 along second slide block, 52, the second slide blocks 52 that are arranged in second chute 51 that second chute 51 slides, thereby when second suspension 63 rotates around second pivotal axis 64; By the gearing of second connecting axle 631 and second connecting rod 53, second slide block 52 is slided along second chute 51.On second slide block 52, be provided with laser designator equally towards work top 2, its laser beam of launching is projected on the altitude scale 5 on the work top 2, thereby clearly indicates the height of current saw blade 3 with respect to work top 2.Need to prove that altitude scale 5 also adopts translucent material.

The structure of the height indicating device here and the structure of deflection angle indicating device are roughly the same, all are the rotations through suspension, cause the translation of slide block by the connecting rod transmission, thereby indicate corresponding calibration parameters.But in the height indicating device, first pivotal axis 61 and second chute 51 link together; Therefore; Second slide block 52 that in second chute 51, slides also is connected with first pivotal axis 61 simultaneously, and can slide along first pivotal axis 61, and; Second slide block 52 is different from first slide block 42, and it can also rotate with first pivotal axis 61 together.

See also Fig. 7 a to 7b, for the course of work of clearer explanation bench saw of the present invention, just list in the diagram and lifted the deflection angle indicating device, the height indicating device similarly.When the user need regulate the deflection angle of saw blade 3, can open indicator 8, at this moment, indicator 8 is launched laser beam and is projected in the zero graduation position on the angle scale 4, shown in Fig. 8 a.Simultaneously, rotation adjusting handle 11 also is arranged in the initial position like Fig. 7 a.The user operates rotation adjusting handle 11, and along with moving of final drive shaft 12, rotation adjusting handle 11 can produce along arc 13 adjustment and move to new position; Shown in Fig. 7 b, at this moment, by the effect of pivot angle indicating device; First slide block 42 also will produce translation, and then make the indicator 8 that is arranged on first slide block 42 also produce translation, simultaneously; Laser beam also can point to new scale on angle scale 4; Shown in Fig. 8 b, the scale of this moment is 35 degree, and expression saw blade 3 deflects to 35 degree angles with respect to work top 2.Continue operation rotation adjusting handle 11; Shown in Fig. 7 c, move to the end of arc 13 until it; The laser beam of this moment also moves to the high order end of angle scale 4, and promptly 45 degree places represent that saw blade 3 deflects to 45 degree angles with respect to work top 2.Along with the required difference of user; Can regulate the different deflection angles of saw blade 3 through operation rotation adjusting handle 11; And in the process of regulating; By the laser indicative function that is formed directly on the work top 2, the user can come into plain view to current adjusting angle, has improved the property of can read of instrument.

Same, when the user need regulate the height of saw blade 3, can open indicator 8, at this moment, indicator 8 is launched laser beam and is projected in the zero graduation position on the altitude scale 5.The user operates rotation adjusting handle 11 rotation, and then second suspension 63 can be gradually around 64 rotations of second pivotal axis, and then drives motor 7 and saw blade 3 produces with respect to work top 2.At this moment, by the effect of height indicating device, second slide block 52 also will produce translation, and then make the indicator 8 that is arranged on second slide block 52 also produce translation, and simultaneously, laser beam also can point to new scale on altitude scale 5.Along with the required difference of user; Through 11 rotations of operation rotation adjusting handle; Can regulate the differing heights of saw blade 3, and in the process of regulating, by the laser indicative function that is formed directly on the work top 2; The user can come into plain view to current adjusting angle, has improved the property of can read of instrument.

Certainly, among the present invention, be not limited to use laser designator to launch laser, the light-emitting device that any industry was ripe already all can be used in the present invention, and adopt industry common pointer structure also can reach same effect.In addition, the mechanism that impels slide block to slide also is not limited to the connecting rod slider mechanism among the present invention, and other transmission mechanisms that can realize the slide block translation are equally within protection scope of the present invention.

Claims

1. bench saw; Comprise pedestal (1) and be arranged on the work top (2) on the pedestal (1); Pedestal (1) is provided with rotation adjusting handle (11); Rotation adjusting handle (11) drives and is positioned at deflection angle or the height and position that the inner saw blade adjustments mechanism (6) of pedestal (1) regulates saw blade (3); Said bench saw also is provided with deflection angle or the height of indicating device in order to indication saw blade (3); Said indicating device comprises transmission device and the indicator (8) that is connected with saw blade adjustments mechanism (6), it is characterized in that: said indicating device also comprise parallel with work top (2) and be arranged on angle scale (4) and altitude scale (5) on the work top (2) at least the two one of, described indicator (8) is gone up the indicator scale scale at angle scale (4) or altitude scale (5).

2. bench saw as claimed in claim 1 is characterized in that: said indicator (8) is a laser designator, its launch laser beam and be projected in angle scale (4) or altitude scale (5) on.

3. bench saw as claimed in claim 2; It is characterized in that: what run through on the said work top (2) is provided with first elongated slot (22) and second elongated slot (23); The bearing of trend of said first elongated slot (22) is perpendicular to plane, saw blade (3) place; The bearing of trend of said second elongated slot (23) is parallel to plane, saw blade (3) place, and said angle scale (4) is housed in first elongated slot (22), and said altitude scale (5) is housed in second elongated slot (23).

4. bench saw as claimed in claim 3 is characterized in that: said angle scale (4) and altitude scale (5) adopt trnaslucent materials.

5. bench saw as claimed in claim 2 is characterized in that: said rotation adjusting handle (11) adopts the Wheel-type structure, and the axle center of wheel disc is connected with a final drive shaft (12), and said final drive shaft (12) is connected with the inner saw blade adjustments mechanism (6) of pedestal (1).

6. bench saw as claimed in claim 5; It is characterized in that: said saw blade adjustments mechanism (6) comprises first pivotal axis (61) that is parallel to the plane setting of saw blade (3) place; Be connected that first pivotal axis (61) is gone up and can be around first suspension (62) of first pivotal axis (61) rotation, and with first suspension (62) pivotal connection and can be with respect to second suspension (63) of first suspension (62) rotation.

7. bench saw as claimed in claim 6 is characterized in that: the motor (7) that drives saw blade (3) is connected on second suspension (63), and first suspension (62) then links together with final drive shaft (12).

8. bench saw as claimed in claim 7; It is characterized in that: said transmission device comprises that being parallel to final drive shaft (12) is arranged on first connecting axle (621) on first suspension (62); First chute (41) that is provided with along first elongated slot (22) on the work top (2) in the inside of pedestal (1); Can be along first slide block (42) in first chute (41) that is arranged on of first chute (41) slip, first slide block (42) is connected with first connecting axle (621) through a first connecting rod (43).

9. bench saw as claimed in claim 7; It is characterized in that: said transmission device comprises perpendicular to final drive shaft (12) and is arranged on second connecting axle (631) on second suspension (63); Second chute (51) that is provided with along second elongated slot (23) on the work top (2) in the inside of pedestal (1) can be along second slide block (52) in second chute (51) that is arranged on of second chute (51) slip, and second slide block (52) is connected with second connecting axle (631) through a second connecting rod (53); Wherein, First pivotal axis (61) and second chute (51) link together, and second slide block (52) that in second chute (51), slides also is connected with first pivotal axis (61) simultaneously, and can slide along first pivotal axis (61); And second slide block (52) can also rotate around first pivotal axis (61).

10. like claim 8 or 9 described bench saws, it is characterized in that: said indicator (8) is arranged on first, second slide block (42,52).