Woodworking – Workbench
Patent
1995-10-10
1998-01-20
Bray, W. Donald
Woodworking
Workbench
144307, 269900, B25N 100
Patent
active
057092567
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a workbench, in particular as a teaching aid in the form of an ergonomically designed multipurpose workbench for use in training for practical trades, according to the preamble of patent claim 1.
On such a workbench which is used primarily for teaching purposes, a separate workstation should be able to be provided at each corner. In this case, it should be possible to set up different workstations for left-handed and right-handed people at one and the same workbench. In workstations for right-handed and left-handed people, the vises are respectively arranged in a different manner at the corners of the worktop of the workbench. In single workstation or multiple workstation workbenches, this different arrangement previously necessitated different workbenches, respectively specifically for right-handed and/or left-handed people.
In the previously known workbenches (such as, for example, according to CH-A-114, 327; DE-C-192,703; and DE-U-8,106,245.1), one workbench always had only either exclusively workstations for right-handed people or such workstations for left-handed people. This derives from the fact that the vises for right-handed and left-handed people must be arranged in a different manner at the workbench corners. Left-handed and right-handed people therefore always had to work at separate workbenches set up respectively for them. Therefore, in order to have sufficient appropriate workstations both for left-handed and for right-handed people with the distribution ratios between left-handed and right-handed people varying from group to group or from training class to training class, generally more workbenches had to be available for use than would be necessary in the case of all the workstations being able to be occupied without taking account of the different hand bias of the trainees.
Providing an improvement here in the sense of more efficient usage of the workstations set up for right-handed and left-handed people at multiple workstation workbenches is a considerable problem with which the present invention is concerned. Furthermore, the invention aims overall to achieve optimum working from an ergonomic viewpoint at such a multiple workstation workbench by means of an appropriate workstation design relating to the workbench. Included in this objective, in particular, are also the auxiliary devices which are customarily used at the workbench such as, inter alia, the bench clamps or other auxiliary tools to be accommodated. Special attention is also paid to a simple construction of the individual functional and auxiliary devices. This applies to a particular extent to the construction and functionality of the vises.
The disadvantage of the inefficient stocking of more workstations or workbenches than would actually be required for the actual number of assigned trainees due to the use of different workbenches for left-handed and right-handed people is eliminated in a quite simple and effective manner by providing a workbench having the characterizing features of patent claim 1.
Owing to the symmetrical design and guiding of the individual vises in relation to the worktop of the workbench, the vises can be mounted in left-handed person, or can be transferred to such positions if required, on one and the same workbench. When transferring a vise from one side of the corner of a workbench to the other side of the same corner, the vise is simply rotated through 180 degrees about the axis of the clamping-spindle. This is possible because the vise is of correspondingly symmetrical construction. Owing to this rotatability of the vise, the guide bushes for the guiding means additionally guiding the vise on the worktop are arranged in both vise positions with the same spacing from the relevant workbench corner.
The transferability of the vises according to the invention is possible due to receiving means provided accordingly on the worktop at each of the four corners of a workbench. The transferability of a vise can also be used in an individual case for transferring the vise to a pos
REFERENCES:
patent: 537338 (1895-04-01), Brown
patent: 1205884 (1916-11-01), Gorlitz
patent: 1508979 (1924-09-01), Keller
patent: 1596169 (1926-08-01), Follmer
patent: 2437351 (1948-03-01), Follmer
patent: 2587177 (1952-02-01), Larson
patent: 4375827 (1983-03-01), Ignjatic
patent: 5186228 (1993-02-01), Stafford
patent: 5553838 (1996-09-01), Lee
Fine Woodworking, No. 83, Aug. 1990, Newton CT p. 16, "Improved Benchdog".
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