Patent US4733704A successfully refreshed from Google Patents.
US4733704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Workbench
Assignee: Individual
•
Filing: 1986-08-29
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Granted: 1988-03-29
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Expires: 2006-08-29
Abstract
Abstract A workbench which includes a workpiece supporting panel carried by a trestle. A clamping device rigidly attaches a manually operated machine tool to an underside of the supporting panel. The machine tool may, for example, be a circular saw, a compass saw, or a router. The supporting panel is provided with at least one cutout for accommodating a portion of the tool of the machine tool such as, for example, a saw blade or a cutter. To simplify the mounting of the manually operated machine tool on the underside of the supporting panel, the supporting panel is adapted to be pivoted from an operative position into a mounting position through an angle of 180° with a locking device being provided for both rotational positions. A slot insert of a chippable material can be provided in the cutout to avoid the danger that pieces of hard metal will fly off the blade if the blade shifts sideways while sawing.
Inventors
- 👤 Robert Wolff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:53
CPC Classifications
B; B23; B23D; B23D47/00; B23D47/02; B23D47/025; B23D59/00; B23D59/007; B25; B25H; B25H1/00; B25H1/02; B25H1/14; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8763
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
179 words
A workbench comprising a trestle means, a supporting panel means for supporting a workpiece, said supporting panel means having a first end and a second end, clamping means for rigidly attaching a manually operated machine tool on an underside of the supporting panel means, means provided in a portion of the supporting panel means for enabling a portion of the machine tool to extend above a top side of the supporting panel means, means for mounting said supporting panel means on said trestle means so as to enable said supporting panel means to be pivoted about a pivot axis through an angle of 180° from an operative position to a machine tool mounting position, and retaining means, provided on said trestle means, for locking said supporting panel means in the operative position with the first end of said supporting panel means resting on a portion of the trestle means and the second end of said supporting panel means elastically bent in an upward direction by said retaining means, and for retaining said supporting panel means in the mounting position.
Claim 2
Dependent Claim
179 words
A workbench comprising a trestle means, a supporting panel means for supporting a workpiece, said supporting panel means having a first end and a second end, clamping means for rigidly attaching a manually operated machine tool on an underside of the supporting panel means, means provided in a portion of the supporting panel means for enabling a portion of the machine tool to extend above a top side of the supporting panel means, means for mounting said supporting panel means on said trestle means so as to enable said supporting panel means to be pivoted about a pivot axis through an angle of 180° from an operative position to a machine tool mounting position, and retaining means, provided on said trestle means, for locking said supporting panel means in the operative position with the first end of said supporting panel means resting on a portion of the trestle means and the second end of said supporting panel means elastically bent in an upward direction by said retaining means, and for retaining said supporting panel means in the mounting position.
Claim 3
Dependent Claim
17 words
A workbench according to claim 1, wherein said supporting panel means is a sheet metal supporting panel.
Claim 4
Dependent Claim
32 words
A workbench according to claim 1, wherein the supporting panel means has a substantially rectangular configuration, and wherein the pivot axis lies beside one axis of symmetry of the supporting panel means.
Claim 5
Dependent Claim
23 words
A workbench according to claim 1, wherein the pivot axis lies on one of the axes of symmetry of the supporting panel means.
Claim 6
Dependent Claim
79 words
A workbench according to claim 3, wherein a stop means is provided on the trestle means for preventing movement of the supporting panel means when said supporting panel means is in the operative position, and wherein, in the operative position of the supporting panel means, the first end is disposed on said stop means and extends in parallel to the pivot axis, and said retaining means engages in an area of the second end of the supporting panel means.
Claim 7
Dependent Claim
61 words
A workbench according to claim 5, wherein said stop means includes an abutment strip fixedly mounted to the trestle means and extending in parallel to the first end, and wherein the pivot axis lies on a side facing away from the abutment strip at a distance spaced from and adjacent to a corresponding axis of symmetry of the supporting panel means.
Claim 8
Dependent Claim
19 words
A workbench according to claim 6, wherein said retaining means urges said supporting panel means against said stop means.
Claim 9
Dependent Claim
80 words
A workbench according to claim 7, wherein said trestle means includes lateral frame means for encompassing said supporting panel means, and wherein said retaining means includes a pair of eccentric lever means arranged at respective sides of the supporting panel means, means are provided for mounting said lever means at the lateral frame means of said trestle means, said supporting panel means being adapted to be urged by said lever means from a loose resting position against said stop means.
Claim 10
Dependent Claim
91 words
A workbench according to claim 8, wherein said supporting panel means includes downwardly extending side walls, and wherein each of said eccentric lever means includes a bearing pin means unilaterally flattened along a portion of a length thereof so as to define the flattened pin area insertable as an eccentric means in openings provided in said downwardly extended side walls of the supporting panel means, and wherein opening means are provided in said side walls at respective opposite longitudinal ends thereof for fixing the supporting panel means in the mounting position.
Claim 11
Dependent Claim
28 words
A workbench according to claim 9, wherein the eccentric lever means further include one-armed operating levers projecting at an end side approximately perpendicularly from the bearing pin means.
Claim 12
Dependent Claim
57 words
A workbench according to claim 10, wherein said trestle means includes four legs attached to ends of the lateral frame means, two of said legs are joined together by said abutment strip, and a cross strut means is provided for joining two opposite legs together, said strut means being disposed at a lever below said abutment strip.
Claim 13
Dependent Claim
17 words
A workbench according to claim 11, further comprising a base frame means for strut-bracing the legs together.
Claim 14
Dependent Claim
39 words
A workbench according to claim 12, wherein said means for enabling a portion of the machine tool to extend above the topside of the supporting panel means includes at least one cutout for accommodating the portion of the tool.
Claim 15
Dependent Claim
34 words
A workbench according to claim 13, wherein a plurality of cutouts are provided in the supporting panel means for enabling a mounting of a plurality of different machine tools to the supporting panel means.
Claim 16
Dependent Claim
36 words
A workbench according to claim 14, wherein said plurality of cutouts are arranged approximately adjacent the pivot axis of the supporting panel means and the axis of symmetry extending in parallel thereto in a side-by-side relationship.
Claim 17
Dependent Claim
37 words
A workbench according to claim 13, wherein said at least one cutout is arranged approximately adjacent the pivot axis of the supporting panel means and the axis of symmetry extending in parallel thereto, in a side-by-side relationship.
Claim 18
Dependent Claim
34 words
A workbench according to claim 1, wherein said supporting panel means has a substantially rectangular configuration and is pivotable about a pivot axis lying beside one axis of symmetry of the supporting panel means.
Claim 19
Dependent Claim
34 words
A workbench according to claim 1, wherein said supporting panel means has a substantially rectangular configuration and is pivotable about a pivot axis lying on one axis of symmetry of the supporting panel means.
Claim 20
Dependent Claim
89 words
A workbench according to claim 1, wherein a stop means is provided on the trestle means for preventing movement of the supporting panel means when said supporting panel means is in the operative position, and wherein, in the operative position of the supporting panel means, a first end of the supporting panel means is disposed on said stop means and extends in parallel to the pivot axis, and said retaining means engages in an area of a second end of the supporting panel means disposed opposite said first end.
Claim 21
Dependent Claim
62 words
A workbench according to claim 19, wherein said stop means includes an abutment strip fixedly mounted to said trestle means and extending in parallel to the first end of said supporting panel means, and wherein the pivot axis lies on a side facing away from the abutment strip at a distance spaced from an axis of symmetry of the supporting panel means.
Claim 22
Dependent Claim
49 words
A workbench according to claim 1, further comprising stop means on said trestle means for preventing movement of the supporting panel means when said supporting panel means is in the operative position, and wherein said retaining means are adapted to urge said supporting panel means against said stop means.
Claim 23
Dependent Claim
105 words
A workbench according to claim 1, further comprising stop means on said trestle means for preventing movement of the supporting panel means when said supporting panel means is in the operative position, said trestle means includes lateral frame means for encompassing said supporting panel means, and wherein said retaining means includes a pair of eccentric lever means arranged at respective sides of the supporting panel means, means are provided for mounting said lever means at the lateral frame means of said trestle means, said supporting panel means being adapted to be urged by said lever means from a loose resting position against said stop means.
Claim 24
Dependent Claim
91 words
A workbench according to claim 22, wherein said supporting panel means includes downwardly extending side walls, and wherein each of said eccentric lever means includes a bearing pin means unilaterally flattened along a portion of a length thereof so as to define the flattened pin area insertable as an eccentric means in openings provided in said downwardly extended side walls of the supporting panel means, and wherein opening means are provided in said side walls at respective opposite longitudinal ends thereof for fixing the supporting panel means in the mounting position.
Claim 25
Dependent Claim
62 words
A workbench according to claim 23, wherein the eccentric lever means further include one-armed operating levers projecting at an end side approximately perpendicularly from the bearing pin means, said operating levers being disposed, in a locked position of the supporting panel means, approximately in parallel to the supporting panel means and, in a released position, projecting approximately perpendicularly in an upward direction.
Claim 26
Dependent Claim
57 words
A workbench according to claim 1, wherein said trestle means includes four legs attached to ends of the lateral frame means, two of said legs are joined together by said abutment strip, and a cross strut means is provided for joining two opposite legs together, said strut means being disposed at a level below said abutment strip.
Claim 27
Dependent Claim
17 words
A workbench according to claim 24, further comprising a base frame means for strut-bracing the legs together.
Claim 28
Dependent Claim
39 words
A workbench according to claim 1, wherein said means for enabling a portion of the machine tool to extend above the topside of the supporting panel means includes at least one cutout for accommodating the portion of the tool.
Claim 29
Dependent Claim
34 words
A workbench according to claim 27, wherein a plurality of cutouts are provided in the supporting panel means for enabling a mounting of a plurality of different machine tools to the supporting panel means.
Claim 30
Dependent Claim
36 words
A workbench according to claim 28, wherein said plurality of cutouts are arranged approximately adjacent the pivot axis of the supporting panel means and the axis of symmetry extending in parallel thereto in a side-by-side relationship.
Claim 31
Dependent Claim
21 words
A workbench according to claim 1, wherein said machine tool is one of a circular saw, compass saw, and a router.
Claim 32
Dependent Claim
43 words
A workbench according to claim 10, wherein the lateral frame means includes stop tongues, and wherein each of the operation levers include a radially directed pin, which is clamped in the locking position of the operation levers behind one of the stop tongues.
Claim 33
Dependent Claim
40 words
A workbench according to claim 1, wherein said means for enabling a portion of the machine tool to extend above the top side of the supporting panel means includes at least one cutout for accommodating the portion of the tool.
Claim 34
Dependent Claim
22 words
A workbench according to claim 32, further comprising a slot insert plate of a chippable material lining said at least one cutout.
Claim 35
Dependent Claim
56 words
A workbench according to claim 33, wherein said slot insert plate has a slot-shaped opening adapted to allow a saw blade to pass therethrough, said slot-shaped opening being narrower than said opening in said workpiece supporting panel and its edge area being raised to serve as a lining in said opening in said workpiece supporting panel.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-03-29 | 1991-09-28 | 1992-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-29 | 1995-09-28 | 1996-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-29 | 1999-09-28 | 2000-03-29 | $7700.00 | Window Closed / Lapsed |