JPS5937070A - Bench - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] BACKGROUND OF THE INVENTION The present invention relates to benches, particularly workbenches.

Various proposals have been made regarding the construction of the workbench.

For example, GB 1,267,032 discloses a workbench comprising a pair of elongated vice structures supported from below by a support structure, the upper surfaces lying in the same horizontal plane so as to form the work surface. These elongated vise members are
It has a relatively simple structure, and is effectively in the form of two wooden boards, the wooden boards being used to support the workpiece on the upper side, and the holes in the plate-like vise member. The convenience of gripping the workpiece is provided by inserting a nail into the workpiece, the nail having a head that overlaps the edge of the workpiece. Alternatively, the workpiece may be gripped between opposing side edges of the plate-like vise member. Two operating screws are provided, one adjacent to each end of the pair of vise members, so that the plates can be aligned parallel to each other or
Or a device is formed that moves at mutually constituting angles.

Although this is very satisfactory for many applications,
The structure cannot hold and firmly grip large workpieces. Devices have been made with structures extending in the region of the upper side, as shown in Patent No. 1,267,032, but this is not entirely satisfactory. Moreover, no device is provided for accurately mounting tools on the resulting workbench.

According to the present invention, a horizontal work surface, a fence adjacent to the rear side of the work surface and defining a straight edge, a ledge mounted on the fence and extending over a portion of the work surface; It is proposed to provide a bench comprising a device for moving the ledge perpendicularly to the work surface such that a workpiece on the surface can be releasably gripped between the ledge and the work surface.

The working surface is advantageously in the form of a large table-like structure and may be provided with a central groove extending from the front to the rear for reasons explained in a moment.

The advantage of the structure of the invention is that very large workpieces can be placed on the work surface and gripped precisely against the fence at the reference plane of the workpiece.1 Preferably, the ledge is attached to the fence. Formed in one piece. In one particular construction, both the ledge and the fence are continuous elements, so
It is of "angle iron" construction. The ledge may be provided with a series of precisely spaced vertical holes so that one or more nails can be inserted therethrough to accurately position the workpiece.

The fence preferably has a bridge secured to the fence so as to extend forwardly across the front and rear sections of the working surface. The bridge has guides extending exactly perpendicular to the straightedge defined by the fence and is vertically movable with the fence as a unit. This can be achieved with the operation of a single handle, which handle
Through a series of gears, for example four worms and f-ions, it is possible to ensure that the bridge and fence are always precisely spaced at the same distance across the working surface. A further crank is provided on the carriage movable along the bridge and/or the guide of the bridge at the front so as to enable the workpiece to be gripped not only at the rear but also at the front by the ledge. It's okay.

However, in the currently preferred construction, the fence, ledge, and advantageously the bridge are fixed members mounted to the frame of the work platform, and the work surface is movable in a vertical direction. This is achieved by having a working surface forming the upper part of the table and whose vertical position is adjustable. One example of a mechanism for accomplishing this includes a threaded shaft rotatable by a handle that engages a nut supported by a crank mounted on one of two horizontally extending transverse shafts. Each horizontal shaft is fitted with two parallel radially extending arms each having a roller at its free end that is retainable to the underside of the table, and the two horizontal shafts are mounted on cranks mounted on each horizontal shaft. Connected by supported rods. Rotation of the handle moves the nut and thus pivots the two transverse axes and the arms attached to the transverse axes. This raises or lowers the table such that the top surface of the table remains horizontal.

The table may be formed as a glass reinforced resin structure with a peripheral skirt and a longitudinally extending metal rail on the underside for rigidity.

For example, the rail may have the profile of a silk hat cross-section,
It may also act as a roller track. The bolts holding the fence to the frame may pass through vertical slots in the skirt and act to guide the table during its vertical movement.

The grit may be equipped with a carriage for mounting tools such as groove planers, saws, etc. The carriage is advantageously provided with a symmetrical, for example square, recess on its upper side, which is adaptable to a similarly shaped plate of the tool. This allows the tools to be mounted precisely perpendicular to each other in two directions. Thus, for example, if the tool is a saw, it may be used to cut a workpiece from front to back by moving the carriage along a guide, with the carriage at the id. may be used to cut parallel to the fence by holding the tool stationary and moving the workpiece relative to the tool as it abuts the fence.

When moving a saw or other tool from front to back,
The tool may pass through the central groove mentioned above. When using a saw to cut parallel to the fence, the lower part of the saw may be fitted into the slot or another slot extending parallel to the fence.

To aid this movement of the workpiece when abutting the fence, a shackle member may be provided comprising a base having at least two laterally extending loops of elastic resin material, the loops extending laterally from the base. It extends at an acute angle to the edge and is inclined in the same direction.

This slope is towards the direction of movement of the workpiece.

A different construction of the Zotsusha member has a strip of material thin enough to pass easily under the bridge when the ledge grips the workpiece, the strip of material having at least two strips of material on its lateral edges. It includes two spaced apart, resiliently biased rollers that are engageable against edges of the workpiece parallel to the edges that abut the fence. The rollers press the workpiece towards the fence and allow it to move easily parallel to the fence.

The invention will become clearer from the following description with reference to the accompanying drawings.

Referring to the drawings, a workbench is shown comprising four sets of foldable legs 10 each having a central hinged place 11, the legs and places being attached to an open rectangular shaped frame 12. be combined. The frame fixedly mounts two rectangular boards 13 and 14, the boards 1 & 13 shown being slightly larger than board 14 by υ. These doors are spaced slightly apart to provide a groove 15 extending from the front to the rear.

Fence 16 is adjacent to the rear of board 13.14 and
At the rear edge of one board, place a straight edge on the Y straight edge and groove 1.
There is a gap at 5 points. Each section of the fence 16 has a horizontally extending ledge 17 which projects over the rear of the associated board 13, 14. The fence and ledge sections thus have an "angle iron" shape and the ledge has a number of discrete vertical holes 18.

The frame 12 has a pair of downwardly extending brackets 19 (FIG. 6) formed thereon and a rearwardly extending portion 20 (
(Fig. 1). Front pair 21 and rear pair 2
Four threaded posts with 2 are threadedly engaged in nuts 23 of frame 12 and part 20, respectively. The pillar 22 is
It is fixed at its upper end to a platform 24, which mounts the fence section 16 and the associated ledge 1T. Each column 21 is connected at the front of the bench via a pivot 25 to a foldable front column 26, each column having a rearwardly projecting portion 27.

The upright column 28 is mounted on the platform 24, and as shown, a tubular side bar 29 projects forward from the upright column 28 in a cantilevered manner, and its front end is connected to the portion 2 of the front column 26.
7.

In this way, the guide bar 29 is placed so that it extends very precisely perpendicular to the straightedge defined by the fence 16.

Carriage 3 with square central recess 31
0 can be slid back and forth on the guide bar 29. Tools such as groove planers or saws with correspondingly shaped plates are
It can be seated in a recess 31 with a downwardly extending tool portion. In this way, the groove planer or saw can either extend along the groove 15 or run perpendicular to the groove 15.

A hoisting handle 33 is mounted on the front skirt 32 of the frame and has an axle 34 extending to the rear of the pliers.

The worms 35.36 are provided at the front and rear of the shaft 34 and engage pinions 37.3B mounted on the front and rear transverse shafts 39.40, each of which is connected to a column. 21.
It has a further worm 41.42 at each end which can engage a pinion 43.44 fixed to 22. Therefore, the rotation of the nozzle 33 causes a rotation of the axis and thus of the column 21.22, so that the platform 24, the front column 26 and the fence section 16 together with the ledge 17 are all ff -1'13. Raise and lower at the same rate relative to the upper working surface of 14. The workpiece 50 can thus be placed on the work surface and pressed against the fence. next,··
The handle 33 may be operated such that all the movable parts mentioned above are lowered such that the ledge 17 grips and holds the workpiece firmly. Before this is carried out, the slider 55 of the fence is moved to a suitable position and the hole 18 in the particular position is
may be secured by inserting one of the pins (not shown) therethrough so as to accurately position the workpiece in the manner shown.

The workpiece may then, for example, be subjected to a transverse saw cut, and then the finished product can be produced with a groove planer mounted on a carriage, which Gives a very precise finished surface perpendicular to the edges and faces of the board.

If a cut parallel to the fence is desired, the saw can be grasped and rotated through a right angle to reposition the saw within the recess 31, but with the saw blade parallel to the fence 16. Next, attach the bushing member 51 to the bow 113 or yl? −
) F14, which is held in place by a wing nut 52 having a guild that is engageable in a T-slot (not shown) in the board. In addition, the bushing member is
The end edge 54 has two resin loops 53, both of which are inclined at an acute angle to the end edge 54.
(see figure), the angles are in the same direction.

Therefore, the workpiece may be pressed from left to right as shown in FIG. 4 and will remain firmly against the fence. When this is done, the carriage 30 may be precisely positioned with a bottle (not shown) inserted through a hole in the carriage and a hole in the guide r29.

When it is desired to operate on large workpieces, the front strut 26 may be folded forward and the workpiece inserted from the front. For the strength of the structure, it is not absolutely essential to have these front struts, but it is advantageous if they are present.

If the workpiece is to be firmly held, especially during the cutting movement by moving the carriage along the guide 29, it is necessary to engage the front edge of the workpiece and hold it downward. The device may be provided on the guide or the carriage or both. This downward holding may, of course, be performed when the nozzle 33 is operated to move the ledge 17 so as to engage the upper surface of the workpiece.

Referring now to the structure shown in FIGS. 5 to 8, the workbench includes four legs 101, four horizontally extending lower place members 102, and four upper place members 102.
03 and is provided with a Y rectangular frame 100.

Therefore, the frame is of solid rectangular construction.

As can be seen in FIG. 5, the fence 106 is bolted to the rear frame member at six guilds 105, and the fence itself extends vertically upwardly and includes an upper flange 107. Two flat plates 108 and 109 forming horizontally extending ledges are fixed to the flange 107, for example by welding or gilding. many holes 11
0 are arranged parallel to the fence 106 along the ledges 108, 109 in a straight line and preferably evenly spaced apart.

Table 111 is mounted to upper place member 103 and has an upper work surface 112 and a central linear channel 113 forming a groove extending from the rear to the front of the bench. Table 111 is formed as a molding of glass fiber reinforced resin material and includes a peripheral skirt 114 extending downwardly over the top of legs 101. The skirt at the rear of the table is formed with six vertically extending slots 115 through which the bolts 105 can be inserted.

The depending support 116 is fixed to one lateral place 1030 and is rotatable in the nodule 118 with a horizontally extending threaded shaft 117 bearing (not shown). The nut 119 is screwed onto the shaft 117 and attached to a first crank 120, and the first crank is attached to a horizontal shaft 121 extending from the front to the rear of the bench and is pivotable about the axis of the horizontal shaft. It is. The horizontal axis is mounted with two separate arms 122, and a roller 123 running on the underside of the table 111 is rotatably mounted on the arms. Preferably, the table comprises four metal rails extending from left to right as seen in FIG. It acts to form a trajectory.

The coupling rod 124 is supported by the crank 120 and supported by another crank 130 .
0 is a shaft 131 with an arm 132 having a roller 133
will be installed on the Therefore, rotation of the handle 118, and therefore of the shaft 117, will cause the nut 119 to move to the left or to the right as viewed in FIG. oscillate. As shown, when the crank is rocked clockwise, the roller 123 moves up the table.

When the workpiece is placed on the work surface 112 and pushed under the ledges, if the nozzle 118 is operated in this manner, the work surface will rise and push the workpiece onto the ledges 108, 109.
It is permitted to hold it under the

The fence 106 has a recess 1 aligned with the channel 113.
24 can be seen in FIG.

The cantilever attachment device 135 (FIG. 7) includes a bridge 136 consisting of two parallel idle rails 137 of square cross section.
used to support. The cantilever support device has an eighth
As shown more clearly in the figure, it can be seen that the two bolts 105 are fitted with hexagonal brackets 1 consisting of an upright post 138, a horizontal bar 139 and a hypotenuse par 140, which in practice are It may be made larger than shown if desired. The two rails 137, which are joined at the front and rear parts by places 141, are joined by a member 139.
5, each guide rail 13 is bolted to the
Two small brackets 1 fixed one on the outside of 7
4201 is shown. The latch member 143 is engageable with these brackets, bolts and wing nuts 144.
may be fixed to the bracket. This normally keeps the bridge absolutely rigid and horizontal. In certain circumstances, it may be necessary to insert very large workpieces, in which case wing nut 144 may be removed and latch 143 pivoted out of the way. The cantilever device 135 is normally strong enough to support the bridge even if the latch 143 is disassembled, especially when the workpiece is mounted closely underneath the guide rail 137. It's natural.

Carriage 145 is slidable longitudinally of idle rail 137 and has a small plate (not shown) extending below the guide rail so as to be captured by the guide rail.

The guide rail has several equally spaced vertical holes (not shown) into which spring-loading pins 150 can be inserted to hold the carriage in any desired position. The carriage is similar to that described in the first embodiment and has a square hole 151 inside. A slot planer or saw may be installed in a square hole as described above, but preferably a slightly different device is provided in which a square plate is inserted, but the square plate itself is
In effect, it has a rotating turntable on which the tool can be mounted, so that the tool can take any desired angle.

The work platform is such that the work surface is raised by hoisting a handle such that the ledge is used to clamp the workpiece downwardly, thereby clamping the workpiece against the underside of the ledge. Otherwise, it can be used in a manner significantly similar to that described with respect to the first embodiment.

The table 111 preferably has two tracks extending in front and behind the groove or channel cross-section, which are not shown in FIG. Extends. The particular shape of this trajectory is shown in FIG. 10 at 152. Orbit 152
is inserted into the recessed portion 153 of the table 111, and a nut 154 into which the knurled bolt 155 is screwed is inserted. This can be used to secure a Lanzo device as shown in FIG. 2, with bolts 155 inserted through holes 156 in the Solo rectangular bottom plate 157 of the clamp. The front edge of the clamp has a downwardly bent tab 15.
8, the rear wall 159 and the left angled wall 160 have upwardly curved flanges, while the third side 161 has no flanges. When using this clamping device,
Tazo 158 may abut the front edge of table 111 and knurled bolt 155 is tightened to secure the clamp in place.

For example, if it is desired to make a 45° diagonal cut at the end of a workpiece, the workpiece should be cut at the flange 1 against the saw.
60. Alternatively, the workpiece may be slid along flange 159 parallel to the fence so as to make a longitudinal cut.

A different clamping device is shown in FIG.
It has 66. Bolts 155 are slid into position on track 152 and strips 165 are tightened so that their edges are parallel to the fence. The actual position is adjusted to suit the particular workpiece at which processing begins, so that the workpiece is biased with the spring loaded roller 166 toward the fence. This can be used to perform a sawing or grooving operation on the longitudinal edges of the workpiece.

[Brief explanation of drawings]

1 is a perspective view from above of the rear side and one side of an embodiment of the workbench of the present invention; FIG. 2 is an elevational view of the workbench of FIG. 1 from the other side; and FIG. The figures are a front view of the workbench shown in FIGS. 1 and 2, FIG. 4 is a plan view of the button member shown in FIG. 1, and FIG. A perspective view from above of one side, FIG. 6 is a front view of the workbench in the cross section of the structure in FIG. 5, and FIG. 7 is an end elevation in the cross section of the structure in FIGS. 5 and 6. Figure 8 is an enlarged side elevation showing the support of the bridge; Figure 9 is a 22
71 is a perspective view of the member, FIG. 10 is a cross-sectional view of a device for securing the clamp member in place, and FIG. 11 is a top plan view of an alternative configuration of the button member. 13.14...Rectangular board 15...Groove 16.10
6...Fence 17...Ledge 19...Bracket 20...Part extending to the rear 21.22...Threaded column 23...Nut 24.
...Platform 29...Guide bar 30.1
45... Carriage 31... Square central recess 33... Winding handle 34... Axis 35.36, 41.42... Worm 37.3B, 4
3.44...-Nion 39.40...Horizontal axis
100... Frame 101... Leg 102... Lower brace member '103... Upper place member 105... Bolt 108, 109... Flat plate (ledge) 111...
Table 112... Upper work surface 113...
Central linear channel 114...Peripheral skirt 115...Slot 1
17... Threaded shaft 118... Handle 12
0.130...Crank 122.132...Arms 123, 133...Rollers 124...Coupling rod 136...Bridge 137...Idonor 151...Square hole 153...Concavity Part 154...Nut 155...Knurled bolt 165...Strip 166...Spring loaded roller representative Asamura Hiroshi lbb 1b7
166 Procedural amendment amendment power formula) % formula % 1. Indication of case Patent Application No. 81612 of 1981 3. Person making the amendment Relationship with the case Patent applicant 4, Agent 5, Date of amendment order 1988 8 Month 30th 6. Number of inventions increased by amendment

Claims (9)

[Claims] (1) consists of a y-horizontal work surface (13, 14, 112) and a fence (1) adjacent to the rear side of the work surface that limits the straightedge.
6,106). The fence has a ledge (17, 108, 109) extending over a portion of the work surface, and a workpiece on the work surface is releasably gripped between the ledge and the work surface. Bench, characterized in that it is provided with a device (19-44° 118-133) for moving the ledge in a direction perpendicular to the working surface. (2) The work surface has a table-like structure (13, 14°1
Bench according to claim 1, characterized in that a central groove (15, 113) in the form of 12) extends from the front to the rear of the working surface. (3) A bridge (29, 136) is fixed to the fence (16, 106) and extends forward.
9,137), and the guide has a fence (16, 137);
106), and the cantuge (30, 145) is configured to be slidable along the id and to be fitted with a movable crab tool. A bench according to claim 1 or 2. (4) Said bridge (29), fence (16) and ledge (17) are connected to four upright threaded posts (21,
22) and the gearing (35-44) raises or lowers the bridge (29), fence (16) and ledge (17) to grip the workpiece on the work surface. Bench according to claim 3, characterized in that one handle (33) makes it possible to rotate the columns together. (5) comprising a frame (100-103), the fence (106), the ledge (108) and the bridge (
136) is fixed in a rigid manner to the frame, and a device (11
8-133). The bench according to claim 6, characterized in that: 8-133) is provided. (6) The elevating device is a part of the frame (10
3) The arm (120, 122゜130.132
) and rollers (123, 133) attached to the upper end of the arm.
), a connecting rod (124) connecting the arms, and a handle (118) connected to a shaft (117) screwed to one of the arms, thereby allowing rotation of the handle. but causing a simultaneous pivoting of the arm so as to raise and lower the roller, the lower side of the working surface resting on the roller so as to be raised and lowered together with the roller. The bench described in scope item 5. (7) said working surface (112) is the upper side of a table (111) formed of a glass-reinforced resin material, said table having a reinforcing skirt (114) hanging around its periphery, and a metal rail; 7. The bench according to claim 6, wherein the bench is provided on the lower surface of the table so as to form a track along which the rollers run. (8) the peripheral skirt has vertical slots (115) for inserting bolts (105) which hold the fence (106) against the frame (100) and prevent vertical movement; 8. The bench according to claim 7, wherein the bench acts to guide the table. (9) the carriage (30, 145) is symmetrical, for example square, so as to fit into a similarly shaped plate of the tool and to make it possible to mount the tool exactly perpendicular to each other in two directions; Any one of claims 6 to 8, characterized in that it has a recess (31° 151).
The bench mentioned in Section 1. 0Q An elongated strip of material thin enough to pass under the bridge) A bushing member having an IJ knob (16
5), a spring-loaded roller (166) spaced at a rear edge of the strip, and a device (153-155) for gripping the strip so as to equidistantly space the roller from the fence; According to any one of claims 6 to 9, the roller is therefore capable of biasing the workpiece towards the fence when it is pressed parallel to the fence. The bench described in.