GB2331480A - Combined clamp and tool guide - Google Patents

Combined clamp and tool guide Download PDF

Info

Publication number
GB2331480A
GB2331480A GB9724639A GB9724639A GB2331480A GB 2331480 A GB2331480 A GB 2331480A GB 9724639 A GB9724639 A GB 9724639A GB 9724639 A GB9724639 A GB 9724639A GB 2331480 A GB2331480 A GB 2331480A
Authority
GB
United Kingdom
Prior art keywords
jig
workpiece
jaw
tool guide
planar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB9724639A
Other versions
GB2331480A9 (en
GB9724639D0 (en
Inventor
Joseph Hosking
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Publication of GB2331480A9 publication Critical patent/GB2331480A9/en
Application filed by Individual filed Critical Individual
Priority to GB9724639A priority Critical patent/GB2331480A/en
Publication of GB9724639D0 publication Critical patent/GB9724639D0/en
Publication of GB2331480A publication Critical patent/GB2331480A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/16—Details, e.g. jaws, jaw attachments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q9/00—Arrangements for supporting or guiding portable metal-working machines or apparatus
    • B23Q9/0014—Portable machines provided with or cooperating with guide means supported directly by the workpiece during action
    • B23Q9/0042—Portable machines provided with or cooperating with guide means supported directly by the workpiece during action the guide means being fixed only on the workpiece
    • B23Q9/005—Portable machines provided with or cooperating with guide means supported directly by the workpiece during action the guide means being fixed only on the workpiece angularly adjustable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/10—Arrangements for positively actuating jaws using screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G5/00—Machines or devices for working mitre joints with even abutting ends
    • B27G5/02—Machines or devices for working mitre joints with even abutting ends for sawing mitre joints; Mitre boxes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

A jig comprises first and second jaws (8,2) having opposed planar surfaces for clamping a workpiece (6) therebetween. The jig further comprises a tool guide (28) which is connected to the first jaw (8) and has a guiding edge rotatably adjustable in a plane coplanar with the surface of the first jaw (8), or parallel to and immediately adjacent the surface of the first jaw (8). In use, a planar workpiece (6) such as a plank may thus be firmly clamped in the jig, with the edge of the tool guide (28) lying immediately adjacent the surface of the workpiece to accurately position the cutting edge of a tool.

Description

2331480 !L19 The present invention relates to a jig for forming accurate
cuts in or through a workpiece.
It is sometimes required to form accurate angled cuts in or through a workpiece such as a plank of wood. For f orming such cuts it is necessary to hold the workpiece f irmly in place, and various devices have been proposed for this purpose.
It is also desirable to provide an adjustable abutting surface for guiding the tool relative to the workpiece. However, such guiding means are not satisfactorily provided by existing workpiece holding devices.
I have now devised an arrangement which overcomes the limitations of existing jigs.
In accordance with the present invention, there is provided a jig comprising first and second jaws having opposed planar surfaces for clamping a workpiece therebetween, and a tool guide connected to the first jaw and having a guiding edge rotatably adjustable in a plane coplanar with the jaw surface, or parallel to and immediately adjacent the jaw surface.
In use, a planar workpiece such as a plank may thus be firmly clamped in the jig, with the edge of the tool guide lying immediately adjacent its surface to accurately position the cutting edge of a tool.
Preferably the opposed planar surfaces of the first and second jaws are horizontally aligned. In this case, preferably the surface of the first jaw is vertically adjustable relative to the surface of said second jaw which preferably comprises the upper surface of a workbench upon which the workpiece is supported. Preferably the upper surface of the workbench comprises one or more raised portions which the workpiece may abut.
Also in accordance with the present invention, there is provided a jig comprising a first portion for attaching to a planar support surface so that a planar surface of a second portion connected to the first portion extends parallel to and opposite the support surface, means for adjusting the height of the second portion relative to the first portion to vary the 2 distance between the surf ace of the second portion and the support surface, and a tool guide connected to the second portion and having a guiding edge rotatably adjustable in a plane coplanar with the surface of the second portion, or parallel to and immediately adjacent surface of the second portion.
An embodiment of the present invention will now be described by way of example only and with reference to the accompanying drawings, in which:
Figure 1 is a perspective view of a jig in accordance with the present invention; and Figure 2 is a perspective view of the jig in use.
Referring to the drawings, a jig is shown comprising a horizontal support surface 2 having a raised edge 4 which a is workpiece 6 abuts, and an planar member 8, horizontally opposed to the support surface and vertically adjustable to clamp the workpiece in place.
The jig also comprises a housing 10, the top of which is formed with an aperture 12 through which the handle portion 14 of a threaded shaft 16 projects.
The threaded shaft 16 passes through a corresponding threaded aperture 18 in the planar member 8 so that by turning the handle 14 the threaded shaft 16 may be rotated to raise or lower the planar member.
A pair of guide rods 20,22, connected between the housing 8 and the support surface 2, pass through respective apertures 24,26 in the planar member 8, and act to maintain the horizontal alignment of the planar member and to prevent its rotation about the threaded shaft 16.
The planar member 8 is tapered at one end to allow an elongate tool guide 28 to be rotatably attached thereto. The tool guide 28 and planar member 8 are connected by a locking screw 30 which may be loosened or tightened to respectively adjust or fix the position of the tool guide.
Whilst a tool guide having a linear guiding edge is shown, it would remain in accordance with the present invention for the tool guide to comprise an arcuate guiding edge to form corresponding arcuate cuts in the supported workpiece.
Also, as shown in Figure 2, the jig may comprise 3 additional clamping means 32 for holding the plank in position.
The arrangement thus described provides a readily adjustable means for forming accurate cuts in or through a workpiece.
4 claims 1) A jig comprising first and second jaws having opposed planar surfaces for clamping a workpiece therebetween, and a tool guide connected to said first jaw and having a guiding edge rotatably adjustable in a plane coplanar with the surface of said first jaw, or parallel to and immediately adjacent the surface of said first jaw.

Claims (1)

  1. 2) A jig as claimed in Claim 1, wherein said opposed planar surfaces of
    said first and second jaws are horizontally aligned.
    3) A jig as claimed in claim 2, wherein the surface of said first jaw is vertically adjustable relative to the surface of said second jaw.
    4) A jig as claimed in Claim 2 or Claim 3, wherein said second jaw comprises the upper surface of a workbench upon which said workpiece is supported.
    5) A jig as claimed in claim 4, wherein said upper surface of said workbench comprises one or more raised portions which said workpiece may abut.
    6) A jig comprising a first portion for attaching to a planar support surface so that a planar surface of a second portion connected to said first portion extends parallel to and opposite said support surface, means for adjusting the height of said second portion relative to said first portion to vary the distance between said surface of said second portion and said support surface, and a tool guide connected to said second portion and having a guiding edge rotatably adjustable in a plane coplanar with said surface of said second portion, or parallel to and immediately adjacent said surface of said second portion.
    7) A jig substantially as herein described with reference to the accompanying drawings.
GB9724639A 1997-11-22 1997-11-22 Combined clamp and tool guide Withdrawn GB2331480A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9724639A GB2331480A (en) 1997-11-22 1997-11-22 Combined clamp and tool guide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9724639A GB2331480A (en) 1997-11-22 1997-11-22 Combined clamp and tool guide

Publications (3)

Publication Number Publication Date
GB2331480A9 GB2331480A9 (en)
GB9724639D0 GB9724639D0 (en) 1998-01-21
GB2331480A true GB2331480A (en) 1999-05-26

Family

ID=10822436

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9724639A Withdrawn GB2331480A (en) 1997-11-22 1997-11-22 Combined clamp and tool guide

Country Status (1)

Country Link
GB (1) GB2331480A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004011206A1 (en) * 2002-07-29 2004-02-05 John Stewart Evans Support and guide
AU2003245128B2 (en) * 2002-07-29 2007-05-17 John Stewart Evans Support and guide

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB361697A (en) * 1931-01-28 1931-11-26 William George Phillips Improvements in devices for cutting mitres
GB620650A (en) * 1947-01-27 1949-03-28 Dudley Austic Layton Improvements in or relating to variable portable mitre gauges
US4031794A (en) * 1976-06-25 1977-06-28 Leihgeber Joseph Q Portable jig for rafter cuts and other angle cuts
GB2026353A (en) * 1978-07-29 1980-02-06 Bunting C Workholding devices
WO1986003446A1 (en) * 1984-12-11 1986-06-19 Volk Michael J Saw guide and miter apparatus
US5427006A (en) * 1994-07-26 1995-06-27 Finley; Joe Circular saw guide

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB361697A (en) * 1931-01-28 1931-11-26 William George Phillips Improvements in devices for cutting mitres
GB620650A (en) * 1947-01-27 1949-03-28 Dudley Austic Layton Improvements in or relating to variable portable mitre gauges
US4031794A (en) * 1976-06-25 1977-06-28 Leihgeber Joseph Q Portable jig for rafter cuts and other angle cuts
GB2026353A (en) * 1978-07-29 1980-02-06 Bunting C Workholding devices
WO1986003446A1 (en) * 1984-12-11 1986-06-19 Volk Michael J Saw guide and miter apparatus
US5427006A (en) * 1994-07-26 1995-06-27 Finley; Joe Circular saw guide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004011206A1 (en) * 2002-07-29 2004-02-05 John Stewart Evans Support and guide
AU2003245128B2 (en) * 2002-07-29 2007-05-17 John Stewart Evans Support and guide

Also Published As

Publication number Publication date
GB2331480A9 (en)
GB9724639D0 (en) 1998-01-21

Similar Documents

Publication Publication Date Title
US5325899A (en) Router fixture
US5273090A (en) Wood working assembly
EP0511898B1 (en) Mortise and tenon jig for a router
US4141542A (en) Clamping apparatus for workpieces
US5901763A (en) Working bench equipped with cutting rail alignment for electric circular saw
US5791835A (en) Holding fixture used in woodworking for preparing pocket joints
US5730434A (en) Clamping devices for compound miter saws
US5472029A (en) Saw guide
US6079309A (en) Cutting guide with integral supportive clamping and alignment
US4413818A (en) Combination vise
US6138726A (en) Router guide milling apparatus and method
US4418901A (en) Vise system
US4602898A (en) Dowel drilling jig
US7063000B2 (en) Cutting guide with integral clamping and alignment
GB2309664A (en) Router table fence
EP0526438B1 (en) Cutting tool
JPH02100878A (en) Clamping block
US4128118A (en) Tooling jig
US4456043A (en) Work clamp and tool guide assembly
US5050473A (en) Miter apparatus
US4069849A (en) Arrangement for cutting contours in a workpiece
US4595040A (en) Mortise and tenon jig
US5385183A (en) Tool for producing straight edge
GB2331480A (en) Combined clamp and tool guide
US4655654A (en) Adaptor for workpiece fixture

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)