GB2193663A

GB2193663A - A transverse clamp

Info

Publication number: GB2193663A
Application number: GB08614150A
Authority: GB
Inventors: Peter Naughton Jackson
Original assignee: Individual
Current assignee: Individual
Priority date: 1986-06-10
Filing date: 1986-06-10
Publication date: 1988-02-17
Also published as: GB8614150D0

Abstract

A vicing movement (5) is harnessed to a transmission point (6) which provides a clamping motion (7) which runs transverse to the clamping motion (8). This allows a greater clamping distance (9) than the normal clamping distance (4) to be achieved. The maximum clamping distance (9) can be increased and varied by the use of extenders (10). <IMAGE>

Description

SPECIFICATION Transverse clamping Most clamps work on the principle that the clamping movement operates in the same direction as the vicing movement generating it.

This is satisfactory for most jobs. However, there are many combination bench vice units on the market (notably those of the "Hickman" type where the maximum clamping distance, using vice-pegs, is relatively small (about 10" to 18" depending on the size of model). Consequently, these units are currently unable to handle large clamping tasks.

This problem can be overcome by harnessing one or more vicing movements to provide clamping motions running transverse to them.

That is, by the application of the principle of TRANSVERSE CLAMPING.

The present application of this principle is an invention which uses clamping boards which are attached to the vicing source, (normally a combination bench vice-unit of the Hickman type), by stops running against angled cut-outs, and, turn-bars. The stops running against the angled cut-outs harness the vicing movement to provide the transverse clamping motion. The turn-bars hold the clamping boards in position whilst allowing them to slide.

The clamping-boards are also fitted with extenders to allow the maximum clamp distance to be varied.

The following drawings illustrate an application of this principle to a combination bench vice unit: Figures 1 and 2-Show how the maximum clamping distance of a combination bench/vice unit can be increased by the application of a transverse clamping-board and extenders.

Thus, Figure 1, shows the normal clamping procedure: a vicing source (1) generates a clamping movement (2) running along the line of the screw. Clamping is achieved by having either fixed or variable clamping boards (3) press against the object to be clamped. This achieves a relatively small clamping distance (4).

Figure 2 shows the operation of a transverse clamp: a vicing movement (5) is harnessed to a transmission point (6) which provides a clamping motion (7) which runs transverse to the clamping motion (8). This allowed a greater maximum clamping distance (9) than the normal clamping distance (4). The maximum clamping distance (9) can be varied by the use of extenders (10).

Figure 3.-Shows a transverse clampingboard in front elevation with stops and stopblock accessory detached.

Figure 4.-Shows a transverse clampingboard with extenders in plan form with stops and stop-block accessory detached.

Figure 5.-Shows a transverse clampingboard in side elevation with extenders attached.

Figure 6.-Shows the stop-block accessory attached to the clamping-board in side elevation.

Figure 7.-Shows the stop-block accessory in side elevation-detached.

Figure 8.-Shows two transverse clampingboards in position on a combination bench/vice unit. (Note: Stops running against triangular angled cut-outs).

The procedure for clamping is as follows: REFER to Figs. 3 to 5.

Attach the extenders (11) to the clamping board (12) by using the wing-nut (13) to set the desired clamping distance. Use the turnbar (14) to hold the clamping board (12) in position to a combination bench vice unit [(18) on Fig. 8]. When in position take the stops (15) and place them through the angled cut-outs (16) REFER to Fig. 8. Line-up the stops (15) so that they fit through the holes (17) in the combination bench vice unit (18). Repeat this for e second clamping-board. Take the object to be clamped and place it on the clamping boards (12). Turn the handles (19) on the combination bench/vice unit (18).

The independent pressure generated by the stops (15) running against the angled cut-outs (16) produces self-adjusting transverse clamping motions which can cope with tapering objects. The turn-bars (14) hold the clampingboards (12) in position whilst allowing them to slide freely, clamp to the desired width.

The transverse clamp as shown in Figs. 3 and 8 shows mitre-ing (20) and squaring cutouts (21). These are combined with an adjustable stop-block (Fig. 7 and 22) which moves along the raised portion (23) of the clamping board (12). The procedure for square cutting and mitre-ing is as follows: Take the clamping board (12) and remove the extenders (11). Attach the clamping board (12) to the vice unit so that the raised portion (23) is on the inside of the clamping-board (12). Where specific or uniform lengths are required, the sliding stop (22) is attached to the raised portion (23), and held in position by the turn screw (24). Put the material to be squared or mitred on the clamping-board (12)-resting against the raised portion (23).

Square or mitre using the cut-outs (20,21).

1. Harnessing one or more vicing or gripping movements to provide clamping motions running transverse to them.

2. As claimed in Claim 1, but using the source(s) of the vicing movements to produce a self-adjusting motion.

3. As claimed in Claim 1 and Claim 2, but using the vicing movements of a combination bench/vice unit as the vicing source providing clamping motions running transverse to them.

4. As claimed in Claim 3 but using a ben

**WARNING** end of DESC field may overlap start of CLMS **.

Claims

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Transverse clamping Most clamps work on the principle that the clamping movement operates in the same direction as the vicing movement generating it. This is satisfactory for most jobs. However, there are many combination bench vice units on the market (notably those of the "Hickman" type where the maximum clamping distance, using vice-pegs, is relatively small (about 10" to 18" depending on the size of model). Consequently, these units are currently unable to handle large clamping tasks. This problem can be overcome by harnessing one or more vicing movements to provide clamping motions running transverse to them. That is, by the application of the principle of TRANSVERSE CLAMPING. The present application of this principle is an invention which uses clamping boards which are attached to the vicing source, (normally a combination bench vice-unit of the Hickman type), by stops running against angled cut-outs, and, turn-bars. The stops running against the angled cut-outs harness the vicing movement to provide the transverse clamping motion. The turn-bars hold the clamping boards in position whilst allowing them to slide. The clamping-boards are also fitted with extenders to allow the maximum clamp distance to be varied. The following drawings illustrate an application of this principle to a combination bench vice unit: Figures 1 and 2-Show how the maximum clamping distance of a combination bench/vice unit can be increased by the application of a transverse clamping-board and extenders. Thus, Figure 1, shows the normal clamping procedure: a vicing source (1) generates a clamping movement (2) running along the line of the screw. Clamping is achieved by having either fixed or variable clamping boards (3) press against the object to be clamped. This achieves a relatively small clamping distance (4). Figure 2 shows the operation of a transverse clamp: a vicing movement (5) is harnessed to a transmission point (6) which provides a clamping motion (7) which runs transverse to the clamping motion (8). This allowed a greater maximum clamping distance (9) than the normal clamping distance (4). The maximum clamping distance (9) can be varied by the use of extenders (10). Figure 3.-Shows a transverse clampingboard in front elevation with stops and stopblock accessory detached. Figure 4.-Shows a transverse clampingboard with extenders in plan form with stops and stop-block accessory detached. Figure 5.-Shows a transverse clampingboard in side elevation with extenders attached. Figure 6.-Shows the stop-block accessory attached to the clamping-board in side elevation. Figure 7.-Shows the stop-block accessory in side elevation-detached. Figure 8.-Shows two transverse clampingboards in position on a combination bench/vice unit. (Note: Stops running against triangular angled cut-outs). The procedure for clamping is as follows: REFER to Figs. 3 to 5. Attach the extenders (11) to the clamping board (12) by using the wing-nut (13) to set the desired clamping distance. Use the turnbar (14) to hold the clamping board (12) in position to a combination bench vice unit [(18) on Fig. 8]. When in position take the stops (15) and place them through the angled cut-outs (16) REFER to Fig. 8. Line-up the stops (15) so that they fit through the holes (17) in the combination bench vice unit (18). Repeat this for e second clamping-board. Take the object to be clamped and place it on the clamping boards (12). Turn the handles (19) on the combination bench/vice unit (18). The independent pressure generated by the stops (15) running against the angled cut-outs (16) produces self-adjusting transverse clamping motions which can cope with tapering objects. The turn-bars (14) hold the clampingboards (12) in position whilst allowing them to slide freely, clamp to the desired width. The transverse clamp as shown in Figs. 3 and 8 shows mitre-ing (20) and squaring cutouts (21). These are combined with an adjustable stop-block (Fig. 7 and 22) which moves along the raised portion (23) of the clamping board (12). The procedure for square cutting and mitre-ing is as follows: Take the clamping board (12) and remove the extenders (11). Attach the clamping board (12) to the vice unit so that the raised portion (23) is on the inside of the clamping-board (12). Where specific or uniform lengths are required, the sliding stop (22) is attached to the raised portion (23), and held in position by the turn screw (24). Put the material to be squared or mitred on the clamping-board (12)-resting against the raised portion (23). Square or mitre using the cut-outs (20,21). CLAIMS

4. As claimed in Claim 3 but using a ben ch/vice unit of the "Hickman" type.

5. As claimed in Claims 1, 2, 3 and 4, but using one or more clamping boards held in position to the source of vicing-and, specifi cally, those described in Claims 3 and 4.

6. As claimed in Claim 5, but using stops running-up against angled cut-outs, to hold the bars in position to the sources of vicing-and, specifically those described in Claims 3 and 4.

7. As claimed in Claim 5 but incorporating one or more turn-bars to hold the clamping board in position to the source of vicing (and specifically, those described in Claims 3 and 4)-whilst allowing the clamping boards to slide across the vice source as pressure is applied.

8. As claimed in Claim 6, but using the independent pressure generated by each stop running-up against its own angled cut-out, to produce a self-adjusting transverse clamping motion.

9. As claimed in Claims 5, 6, 7 and 8 where the clamping boards incorporate adjust able, permanent, pre-drilled, or replaceable ex =tender bars, with stops.

10. As claimed in Claims 5, 6, 7 and 8 where the clamping boards are provided with an adjustable/stop attachment facility for mitre-ing and square cutting to consistent lengths.

11. A transverse clamping application sub stantially as described herein with reference to Figs. 3 through to 8 inclusive of the accom panying drawings.

12. A transverse clamping application as described in Claims 1, 2, 3, 4 and 5, but using a "scissors" principle to transmit the transverse motion. (Note: This is not the pre ferred embodiment of the application since the maximum clamping distance is severely lim ited).