WO1984002094A1 - Plate bending apparatus - Google Patents
Plate bending apparatus Download PDFInfo
- Publication number
- WO1984002094A1 WO1984002094A1 PCT/GB1983/000294 GB8300294W WO8402094A1 WO 1984002094 A1 WO1984002094 A1 WO 1984002094A1 GB 8300294 W GB8300294 W GB 8300294W WO 8402094 A1 WO8402094 A1 WO 8402094A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bending
- clamping
- edge
- plate
- clamping member
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/04—Bending sheet metal along straight lines, e.g. to form simple curves on brakes making use of clamping means on one side of the work
- B21D5/042—With a rotational movement of the bending blade
Definitions
- This invention relates to a plate bending apparatus and is- particularly concerned with the provision of means for adapting a WORKMATE (Trade Mark) portable bench manu ⁇ factured by the Black and Decker Company.
- a particular form of such bench sold as the PROFESSION model comprises a foldable framework supporting a pair of parallel jaws, one fixed and the other movable towards and away from the one jaw by a pair of spaced screw members
- a panel is removably mounted between the jaws, the jaws and the panel together defining a generally planar working surface. Facing edges of the panel and the jaw members define respective pairs of clamping surfaces movable into and out of clamping conditions by operation of the screw members.
- Plate bending apparatus comprises a generally rectangular plate clamping member having a rectilinear bending edge, a pair of adjustable clamping devices, one at each end of the plate clamping member and arranged for clamping the plate clamping member to the work surface of a bench with a plate to be bent mounted between the plate clamping member and the work surface, and a bending board hingedly connected' to the plate member at locations spaced apart along the bending edge, the arrangement being such that an upper surface of the bending board can be hingedly moved between a condition generally coplanar with a lower surface of
- OMFI v ⁇ s ⁇ wro of the plate clamping member and a position inclined to the lower surface of the clamping member, whereby a plate clamped to the work surface by the clamping member and extending across the upper surface of the bending board may be bent about the bending edge of the clamping membe .
- the hinge axis coincides with the bending edge, and the bending edge is suitably radiused about the hinge axis.
- the clamping devices comprise plates bent *in L-fashion and each secured at one limb to a respective end of the plate clamping member with the other limb extending in spaced relation below the plate clamping member.
- a clamping screw threadably engagin an aperture in the other limb whereby edge portions of the bench work surface may be clamped to the plate clamping member at its opposite ends. This permits positioning of the bending edge at a side edge of the work surface and positioning of the bending board in generally coplanar manner.
- the one limb of the clamping device plates are formed with extensions adjacent to the clamping edge, and to which the bending board is hingedly connected so that the bending board extends throughout the length of the bending -edge and in closely spaced relation thereto.
- the bending board is releasable -secured at opposite edges in channel shaped clamps having clamping screws mounted in lower flanges of the channels for clamping edge positions of the board against upper flanges .of the channel.
- OM?I of the channel are pivotally connected to respective extensions of the clamping device plates at aligned pivots.
- the clamping devices may be used to secure the plate clamping member to the fixed jaw of the aforedescribed type of WORKMATE bench and the removable panel of the bench secured in the channel shaped clamps, the bending edge of the plate clamping member being located at the junction between the fixed jaw and the panel.
- the invention thus includes a kit of parts comprising the plate clamping member, the clamping devices and the channel shaped clamps for adapting an existing bench.
- Figure 1 is a fragmentary perspective view of part of bending apparatus according to an embodiment of the invention.
- Figure 2 is a fragmentary sectional elevation taken ' along line 2 - 2 of Figure 1 and viewed in the direction of the arrows, and
- FIGS 3 to 5 are schematic views of a WORKMATE bench adapted as a bending apparatus in successive stages of operation.
- a ' plate clamping member suitably of steel, is of generally rectangular form and has a bending edge 2 and at an opposite edge is formed with a turned-up stiffening flange 3.
- the member 1 is provided with an L-shaped clamping device 4 secured at one limb
- V 5 of the device 4 extends inwardly below the member 1 and as seen in Figure 2 is provided with a clamping screw 6 arranged to clamp an edge position of a bench work surface 7 to the underside of member 1.
- the channel shaped clamping members 11 are formed with the extensions 9 at upper parts of their webs and side flanges 12, 13 extending inwardly to embrace edge portions of a bending board 14.
- the lower flanges 12 are provided with clamping screws 15 for clamping the board edge portions to the upper flanges 13.
- the undersides of the upper flanges 13 are suitably arranged coplanar with or slightly below the underside of the plate clamping member 1 to admit a plate 16 to be bent readily to be positioned on the upper surfaces of the work surface 7 and the bending board 14.
- packing pieces may be. placed between the flanges 13 and the bending board 14. in use, as shown in Figures 3 to 5 the apparatus is assembled with the bending board 14 generally coplanar with the work surface 7, and with the plate 16 to be bent clamped by the plate clamping member 1 to the work surface 7 with the bending edge 2 at the junction between the work surface 7 and the bending board 14. The bending board is clamped in the channel clamps 11 with the plate
- X. 14 is then pivotally moved as indicated in Figures 4 and 5 to bend the plate 16 about the edge 2 until the desired angle has been formed.
- a radiused bending edge may be used, but if sharp corners are required then a chamfered bending edge may be preferred.
- each end of the clamping members 1 is formed with a pair of tongues 17 engaging respective slots in the one limb 41 of the associated clamping device.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
A plate bending apparatus for use with a work bench, which comprises a generally rectangular plate clamping member (1) having a rectilinear bending edge (2), a pair of adjustable clamping devices (4), one at each end of member (1) for clamping the member (1) to the work bench (7) with a plate (16) between them. A bending board (14) is hingedly mounted on the clamping member(1) at locations spaced along the bending edges (2), such that an upper surface of the board (14) can be hingedly moved between a condition generally coplanar with a lower surface of the member (1), and a position inclined thereto whereby the plate (16) is bent about the edge (2).
Description
"PLATE BENDING APPARATUS"
This invention relates to a plate bending apparatus and is- particularly concerned with the provision of means for adapting a WORKMATE (Trade Mark) portable bench manu¬ factured by the Black and Decker Company. A particular form of such bench sold as the PROFESSION model comprises a foldable framework supporting a pair of parallel jaws, one fixed and the other movable towards and away from the one jaw by a pair of spaced screw members A panel is removably mounted between the jaws, the jaws and the panel together defining a generally planar working surface. Facing edges of the panel and the jaw members define respective pairs of clamping surfaces movable into and out of clamping conditions by operation of the screw members. It is an object of the invention to provide a plate bending apparatus for mounting on a work surface, for example one of the jaws of the aforesaid WORKMATE PROFESSIONAL model portable work bench.
Plate bending apparatus according to the invention comprises a generally rectangular plate clamping member having a rectilinear bending edge, a pair of adjustable clamping devices, one at each end of the plate clamping member and arranged for clamping the plate clamping member to the work surface of a bench with a plate to be bent mounted between the plate clamping member and the work surface, and a bending board hingedly connected' to the plate member at locations spaced apart along the bending edge, the arrangement being such that an upper surface of the bending board can be hingedly moved between a condition generally coplanar with a lower surface of
OMFI vφs^wro
of the plate clamping member and a position inclined to the lower surface of the clamping member, whereby a plate clamped to the work surface by the clamping member and extending across the upper surface of the bending board may be bent about the bending edge of the clamping membe .
Suitably the hinge axis coincides with the bending edge, and the bending edge is suitably radiused about the hinge axis. In one embodiment the clamping devices comprise plates bent *in L-fashion and each secured at one limb to a respective end of the plate clamping member with the other limb extending in spaced relation below the plate clamping member. A clamping screw threadably engagin an aperture in the other limb whereby edge portions of the bench work surface may be clamped to the plate clamping member at its opposite ends. This permits positioning of the bending edge at a side edge of the work surface and positioning of the bending board in generally coplanar manner.
Suitably the one limb of the clamping device plates are formed with extensions adjacent to the clamping edge, and to which the bending board is hingedly connected so that the bending board extends throughout the length of the bending -edge and in closely spaced relation thereto. In a convenient arrangement the bending board is releasable -secured at opposite edges in channel shaped clamps having clamping screws mounted in lower flanges of the channels for clamping edge positions of the board against upper flanges .of the channel. Flange extensions
OM?I
of the channel are pivotally connected to respective extensions of the clamping device plates at aligned pivots.
It will be appreciated that the clamping devices may be used to secure the plate clamping member to the fixed jaw of the aforedescribed type of WORKMATE bench and the removable panel of the bench secured in the channel shaped clamps, the bending edge of the plate clamping member being located at the junction between the fixed jaw and the panel. The invention thus includes a kit of parts comprising the plate clamping member, the clamping devices and the channel shaped clamps for adapting an existing bench.
The invention will now be described by way of example with reference to the accompanying partly diagrammatic drawings, in which:-
Figure 1 is a fragmentary perspective view of part of bending apparatus according to an embodiment of the invention.
Figure 2 is a fragmentary sectional elevation taken' along line 2 - 2 of Figure 1 and viewed in the direction of the arrows, and
Figures 3 to 5 are schematic views of a WORKMATE bench adapted as a bending apparatus in successive stages of operation. In Figure 1 a' plate clamping member 1, suitably of steel, is of generally rectangular form and has a bending edge 2 and at an opposite edge is formed with a turned-up stiffening flange 3. At each of its ends, of which one only is shown, the member 1 is provided with an L-shaped clamping device 4 secured at one limb
O PΪ
41 to an end of the member 1 and extending downwardly op' an opposite side to that of flange 3. The other limb
V 5 of the device 4 extends inwardly below the member 1 and as seen in Figure 2 is provided with a clamping screw 6 arranged to clamp an edge position of a bench work surface 7 to the underside of member 1. The one limbs
41 are formed with respective extensions 8 pivotally connected to respective extensions 9 of channel shaped clamping members 11, the pivots 10 being coaxiall-y arranged with the axis coinciding with the bending edge 2 as seen in Figure 2.. The channel shaped clamping members 11 are formed with the extensions 9 at upper parts of their webs and side flanges 12, 13 extending inwardly to embrace edge portions of a bending board 14. The lower flanges 12 are provided with clamping screws 15 for clamping the board edge portions to the upper flanges 13. The undersides of the upper flanges 13 are suitably arranged coplanar with or slightly below the underside of the plate clamping member 1 to admit a plate 16 to be bent readily to be positioned on the upper surfaces of the work surface 7 and the bending board 14. To accommodate plates 16 of a range of thicknesses, packing pieces may be. placed between the flanges 13 and the bending board 14. in use, as shown in Figures 3 to 5 the apparatus is assembled with the bending board 14 generally coplanar with the work surface 7, and with the plate 16 to be bent clamped by the plate clamping member 1 to the work surface 7 with the bending edge 2 at the junction between the work surface 7 and the bending board 14. The bending
board is clamped in the channel clamps 11 with the plate
-1.6' extending over its upper surface. The bending board
X. 14 is then pivotally moved as indicated in Figures 4 and 5 to bend the plate 16 about the edge 2 until the desired angle has been formed.
For most purposes a radiused bending edge may be used, but if sharp corners are required then a chamfered bending edge may be preferred.
To facilitate assembly of the plate clamping member 1 to the bench work surface 7, and removal therefrom, the clamping, devices 4 are suitably releasably coupled to respective ends of the clamping member 1. To this end, each end of the clamping members 1 is formed with a pair of tongues 17 engaging respective slots in the one limb 41 of the associated clamping device. When the clamping screws 6 is in a withdrawn condition, and the plate 1 mounted on the bench work surface 7, the clamping devices 4 may be assembled to or withdrawn from the. clamping member 1 laterally.
Claims
1_ Plate bending apparatus for u§e with a bench character¬ ised by a generally rectangular plate clamping member (1) having a rectilinear bending edge (2), a pair of adjustable clamping devices (4), one at each end of the clamping member (3) and arranged for clamping the member (1) to the work surface (7) of a bench with a plate (16) to be bent mounted between the member (1) and the work surface (7), and a bending board (14) hingedly connected to the plate clamping member (1) at locations (10) spaced apart along the bending edge ' ( 2 ) , the arrangement being such that a upper surface of the bending board (14) can be hingedly moved between a condition generally coplanar with a lower surface of the plate clamping member (1), and a position inclined to the lower surface of the clamping member (1), whereby a plate 16 clamped to the work surface (7) by the clamping member (1) and extending across the upper surface of the bending board (14) may be bent about the bending edge (2) of the clamping member (1).
2. Apparatus as claimed in claim 1, characterised in that the hinge axis (10) coincides with the bending edge (2) .
3. Apparatus as claimed in claim 2 , characterised in that the bending edge (2) is radiused about the hinge axis (10) .
4. Apparatus as claimed in claim 1 or claim 2, character¬ ised in that the bending edge (2) is chamfered.
5. Apparatus as claimed in claim 1, characterised in that the clamping devices - (4) comprise plates bent in L-fashion and each secured at one limb (41) to a respective end of the plate clamping member (1) with the other limb ( T) extending in spaced relation below the plate clamping member (1), and adjustable clamp means (6), on the other limbs (5) adapted to . lamp edge portions of a bench work surface (7) to' the clamping member (1) at opposite ends.
6. Apparatus as claimed in claim 5, characterised in that the adjustable clamping means (6) comprise clamping screws threadably engaging- apertures in the other limbs (5).
7. Apparatus as claimed in claim 5, characterised in that the one limbs (41) of the clamping device plates (4) are formed with extensions (8) adjacent the clamping edge (2) and to which the bending board (14) is hingedly connected so that the bending board (14) extends throughout the length .of the bending edge ( 2) with an edge of the board in closely space relation thereto.
8. Apparatus as claimed in claim 7, characterised in that the bending board (14) is releasably secured at opposite side edge portions in releasable clamps (11,
12, 13) having flanges (9) pivotally connected to respect- ive extensions (8) of the clamping device plates (4) at aligned pivots (10) to define the hinge connection.
9. Apparatus as claimed in claim 1, characterised in that the clamping devices (4) are releasably secured to the clamping member (1).
10. A bit of parts for forming in conjunction with a bench work surface and a bending board, bending apparatus according to claim 1, characterised by a generally rectan¬ gular plate clamping member (1) having a rectilinear ' bending edge (2), a pair of adjustable clamping devices (4), adapted for releasable mounting to respective ends ot the clamping member (1) and for clamping the member (__,) to the bench work surface (7),*each clamping device ■(4) being pivotally "connected (10) to a respective adjust¬ able clamp (11, 12, 13) arranged releasably to clamp an edge portion of the bending board (14) with the edge of the board (14) in close proximity to the bending edge (2).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8233008 | 1982-11-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1984002094A1 true WO1984002094A1 (en) | 1984-06-07 |
Family
ID=10534366
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1983/000294 WO1984002094A1 (en) | 1982-11-19 | 1983-11-17 | Plate bending apparatus |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0126130A1 (en) |
WO (1) | WO1984002094A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112044995A (en) * | 2020-08-26 | 2020-12-08 | 刁家鑫 | Right-angle automatic bending equipment for stainless steel box production |
CN116833259B (en) * | 2023-09-01 | 2023-11-03 | 中国水利水电第九工程局有限公司 | Water-stop steel plate machining device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB541479A (en) * | 1940-08-14 | 1941-11-28 | Norman Stott | Improvements in bending and forming machines for sheet metal, wire and the like |
US2599170A (en) * | 1949-09-15 | 1952-06-03 | Sturdi Bilt Steel Products Inc | Tool support |
FR1188779A (en) * | 1957-12-18 | 1959-09-25 | Bench folding machine | |
CH551233A (en) * | 1972-08-15 | 1974-07-15 | Sonderegger Fritz | FOLDER. |
EP0003995A1 (en) * | 1978-02-22 | 1979-09-19 | Black & Decker Inc. | Portable workbench |
-
1983
- 1983-11-17 EP EP83903810A patent/EP0126130A1/en not_active Withdrawn
- 1983-11-17 WO PCT/GB1983/000294 patent/WO1984002094A1/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB541479A (en) * | 1940-08-14 | 1941-11-28 | Norman Stott | Improvements in bending and forming machines for sheet metal, wire and the like |
US2599170A (en) * | 1949-09-15 | 1952-06-03 | Sturdi Bilt Steel Products Inc | Tool support |
FR1188779A (en) * | 1957-12-18 | 1959-09-25 | Bench folding machine | |
CH551233A (en) * | 1972-08-15 | 1974-07-15 | Sonderegger Fritz | FOLDER. |
EP0003995A1 (en) * | 1978-02-22 | 1979-09-19 | Black & Decker Inc. | Portable workbench |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112044995A (en) * | 2020-08-26 | 2020-12-08 | 刁家鑫 | Right-angle automatic bending equipment for stainless steel box production |
CN116833259B (en) * | 2023-09-01 | 2023-11-03 | 中国水利水电第九工程局有限公司 | Water-stop steel plate machining device |
Also Published As
Publication number | Publication date |
---|---|
EP0126130A1 (en) | 1984-11-28 |
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AK | Designated states |
Designated state(s): US |
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Designated state(s): AT BE CH DE FR GB LU NL SE |