EP0867262A1 - Dispositif de serrage - Google Patents

Dispositif de serrage Download PDF

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Publication number
EP0867262A1
EP0867262A1 EP98302355A EP98302355A EP0867262A1 EP 0867262 A1 EP0867262 A1 EP 0867262A1 EP 98302355 A EP98302355 A EP 98302355A EP 98302355 A EP98302355 A EP 98302355A EP 0867262 A1 EP0867262 A1 EP 0867262A1
Authority
EP
European Patent Office
Prior art keywords
holes
base
cam
shaft
reference line
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.)
Granted
Application number
EP98302355A
Other languages
German (de)
English (en)
Other versions
EP0867262B1 (fr
Inventor
Daniel L. Poole
Robert N. Poole
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Individual
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Individual
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Publication date
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Publication of EP0867262A1 publication Critical patent/EP0867262A1/fr
Application granted granted Critical
Publication of EP0867262B1 publication Critical patent/EP0867262B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/08—Arrangements for positively actuating jaws using cams
    • 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

Definitions

  • the present invention pertains to clamping devices, and more specifically to clamping devices which are infinitely adjustable.
  • Clamps are well known and have long been used in a wide variety of industries and private workshops.
  • a clamp is designed to bind or constrict or to press two or more parts together so as to hold them firmly.
  • Many clamps such as C-clamps, can clamp two items together or hold an item to a surface to be worked on.
  • One drawback with this type of clamp is that in order to clamp an item on a surface, the surface must have an accessible edge. Thus, while the surface may be large, only the exposed edges can be used for clamping. Furthermore, many clamping devices are large and unwieldy, possibly obstructing work on the clamped item.
  • a clamp apparatus including a base having a surface, a plurality of holes positioned in a pattern in the surface of the base, and a cam peg including a shaft sized to be rotatably receivable by a selected one of the plurality of holes and a cam portion coupled to the shaft for rotation therewith.
  • the cam portion is adapted to engage an item to be clamped on the base.
  • the cam peg includes a rotation facilitating member which can be a grip or a tool receiving opening in an upper end of the shaft.
  • a locking mechanism can be affixed to the shaft for locking the cam peg within the selected one of the plurality of holes.
  • FIG. 1 illustrates a clamping system including a base 10, in which is formed a plurality of holes 12 (not drawn to correct positions), and cam pegs 13 of which only one is illustrated. It will be understood that only a portion of base 10 is illustrated and that base 10 may be substantially any dimensions as desired. Furthermore, the proper positioning of holes 12 is important to the invention and will be described in detail.
  • Base 10 can be incorporated into or onto substantially any surface to provide clamping capability.
  • a work bench can be surfaced with a plurality of interconnecting bases 10 to incorporate the clamping system on a portion of or over the entire surface.
  • the present invention can also be incorporated with tools such as drill presses by replacing or covering the base of the drill press with a base similar to base 10.
  • Cam peg 13 includes a shaft 14 with a diameter slightly smaller than the diameter of holes 12 to allow insertion of pegs 13 therein.
  • Shaft 14 includes an end 15 for insertion into holes 12 and an opposing end 17 having a grip 18 for facilitating rotation of cam peg 13 within holes 12.
  • a cam portion 19 is formed on shaft 14 intermediate ends 15 and 17.
  • cam portion 19 has a diameter greater than the diameter of shaft 14 and holes 12, and is offset with respect to shaft 14 along line A in FIG. 3.
  • Cam portion 19 is offset so that its outer diameter is flush with shaft 14 on one side and extends outward from shaft 14 on an opposing side.
  • Grip 18 extends outward from shaft 14 along a line B, generally perpendicular to line A. In other areas grip 18 is flush with shaft 14. While not critical to the invention, the orientation of grip 18 with respect to cam portion 19 facilitates inserting and rotating peg 13 when adjacent an upright surface as will be described presently.
  • Cam peg 30 includes a shaft 32 with a diameter slightly smaller than the diameter of holes 12 to allow insertion of pegs 30 therein.
  • Shaft 32 includes an end 33 for insertion into holes 12 and an opposing end 34.
  • a cam portion 35 is formed on shaft 14 proximate end 34.
  • cam portion 35 has a diameter greater than the diameter of shaft 32 and holes 12, and is offset with respect to shaft 32.
  • Cam portion 35 is offset so that its outer diameter is flush with shaft 32 on one side and extends outward from shaft 32 on an opposing side.
  • End 34 further includes a socket 37 formed therein for receiving a tool such as an allen wrench to facilitate rotation of peg 30 within holes 12.
  • FIGS. 5-7 A further embodiment of a cam peg, generally designated 40, is illustrated in FIGS. 5-7.
  • Peg 40 is generally similar to peg 13, including a shaft 42 having an end 43 and opposing end 44, but can be locked into holes 12 by rotating a screw 45 extending the length of shaft 42. End 43 is split to allow outward expansion thereof as illustrated in FIG. 6.
  • a tapered expansion member 47 is carried within a tapered chamber 48 formed in end 43 and threadably receives the end of screw 45. As screw 45 is tightened, tapered expansion member 47 is pulled toward end 44, forcing end 43 to expand outward. In this manner a peg can be locked into a hole 12.
  • the locking feature can be used on any peg or accessory. For example a straight peg can also be provided with a locking feature. Also, pegs may vary in length as desired.
  • a cam washer 50 is provided which includes a bore 52 sized and shaped to receive, for example, cam portion 19 of cam peg 13 therein. In this manner a larger cam is provided for purposes which will be discussed presently.
  • FIG. 9 a top plan of base 10 is illustrated with a portion of holes 12 shown, and a grid of lines.
  • the grid of lines illustrates the positions of holes 12 wherein intersections 65 of the lines designate where the center of each hole 12 is located.
  • base 10 includes an upper edge 60, left edge 62 and right edge 63.
  • Holes 12 are aligned in a plurality of slanted rows 64 which extend at an angle to upper edge 60.
  • slanted rows 64 are formed at approximately a fourteen degree angle with respect to an orientation line such as upper edge 60, Furthermore, each slanted row 64 is offset with respect to adjacent slanted rows.
  • An example of a method to determine the location of holes 12, is to draw a line 67 at a fourteen degree angle with respect to upper edge 60.
  • a mark 68 is made every nine-sixteenths of an inch. As will be discussed below, this distance will vary depending on the diameter of and distance between holes 12.
  • the grid is drawn with lines intersecting marks 68 and being at thirty degree angles with respect to slanted line 67.
  • holes 12 have a diameter of approximately one-half of an inch and are approximately one-sixteenth of an inch apart. At their closest point, holes 12 are approximately one-sixteenth of an inch apart. Also, the centers of holes 12 in adjacent slanted rows 64 are approximately nine-sixteenths of an inch apart.
  • holes 12 can be increased or decreased as desired, in which case the distance between marks must also be adjusted. It should also be noted, that while fourteen degrees is the preferred angle of slanted rows 64, other angles can also be employed, such as eleven degrees, sixteen degrees, and nineteen degrees. In each instance holes will align in adjacent rows 64, but the vertical and horizontal distance between will vary.
  • Slanted rows 64 are formed because holes 12 will align vertically and horizontally a given distance apart, as illustrated by the blackened holes.
  • the alignment of holes 12 permits stops 70 and 72 to be secured on base 10 by pegs extending therefrom and received in the aligned holes 12. These stops can be positioned anywhere on base 10, and act to anchor an object. To clamp the object, cam pegs 13, 30, 40, etc. are used. An item 73 is shown abutting stop 70. To clamp item 73 into position, the correct holes 12 must be selected, in this case designated 12a and 12b. Due to the slanted and staggered alignment of holes 12, there will always be a hole which is completely uncovered and which will receive a peg.
  • cam portion 19 By using camming pegs, such as peg 13, item 73 can be tightened against stop 70 by rotating shaft 14 to bring cam portion 19 against a surface 75 thereof and to tighten as needed. When rotated, peg 13 will remain at the new orientation due to the pressure exerted against cam portion 19. The pressure between item 73 and cam portion 19 binds shaft 14 within hole 12.
  • the off-centered nature of cam portion 19 permits holes 12 to be used which are a slight distance from the surface to be contacted. If an individual desires to use a hole further from the surface to be contact, cam washer 50 can be used.
  • holes and pegs are endless in the present invention.
  • straight pegs, camming pegs or multiple peg stops may be used in combination.
  • these pegs extend upward past the top surface of the item to be held. This may, however pose a problem for certain activities such as sanding the top surface of a board.
  • cam peg 30 can be employed. End 34 of peg 30 will be below the level of the top surface to permit unobstructed sanding.
  • irregularly shaped objects can also be clamped to base 10 simply by using different combinations of pegs, and finding the appropriate holes 12.
  • Miter box 80 includes a base 82 having a plurality of holes 83 formed therein in an orientation as described previously, upright sidewalls 84 and 85 extending upward from opposing edges of base 82 to define a channel 87 overlying base 82, and slots 88 formed in sidewalls 84 and 85 for guiding a cutting blade.
  • miter box 80 In a conventional miter box, a molding or like article is placed between upright sidewalls, and held firmly against one of the sidewalls by hand to prevent movement of the board during the cutting operation, and to insure that the cut is made at the desired angle. This, however, can be less than satisfactory for safety reasons and quality of cut.
  • miter box 80 is employed to aid in making a cut having a specific angle on a molding 89.
  • Miter box 80 avoids the problems of conventional miter boxes by incorporating the novel clamp system of the present invention.
  • Molding 89 is positioned in channel 87 on base 82 with one side abutting sidewall 84.
  • Cam peg 13 is inserted into one of the plurality of holes 83 which is fully uncovered by molding 89.
  • Peg 13 is rotated bringing cam portion 19 against a surface of molding 89. Peg 13 is rotated until molding 89 is clamped against sidewall 84 with the desired force. Peg 13 remains in this orientation due to the force between molding 89 and peg 13 binding shaft 14 to the sides of hole 83.
  • One or more pegs 13 may be employed, although only one is illustrated. Molding 89 can be cut without any movement. Pegs 13 are easily released by rotating them in the opposite direction.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Clamps And Clips (AREA)
EP19980302355 1997-03-27 1998-03-27 Dispositif de serrage Expired - Lifetime EP0867262B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US4171797P 1997-03-27 1997-03-27
US41717P 1997-03-27
US4724198A 1998-03-24 1998-03-24
US47241 1998-03-24
US47241P 1998-03-24

Publications (2)

Publication Number Publication Date
EP0867262A1 true EP0867262A1 (fr) 1998-09-30
EP0867262B1 EP0867262B1 (fr) 2004-05-26

Family

ID=26718448

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980302355 Expired - Lifetime EP0867262B1 (fr) 1997-03-27 1998-03-27 Dispositif de serrage

Country Status (4)

Country Link
EP (1) EP0867262B1 (fr)
CN (1) CN1104995C (fr)
CA (1) CA2233148C (fr)
DE (1) DE69824070T2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022063989A1 (fr) * 2020-09-24 2022-03-31 Gla-Wel Gmbh Appareil de serrage, système de serrage et méthode de manipulation d'un appareil de serrage

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112719971B (zh) * 2020-12-11 2022-10-14 江门市伟义达五金电器有限公司 一种矩形金属配件用活动式限位装置

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3608886A (en) * 1969-06-11 1971-09-28 Gary Y Greene System of digital jigging
US4157819A (en) * 1977-01-27 1979-06-12 Meyer Richard W Adjustable work piece clamping system
FR2465555A1 (fr) * 1979-09-20 1981-03-27 Sagnial Henri Plateau de positionnement et d'ablocage de pieces a usiner sur machines diverses
EP0074565A2 (fr) * 1981-09-14 1983-03-23 Firma Erwin Halder Palette pour le positionnement et le serrage de pièces à usiner
FR2533856A1 (fr) * 1982-10-04 1984-04-06 Rapayelian Christian Dispositif de guide-lame pour boite a onglets ou similaires
GB2144673A (en) * 1983-08-12 1985-03-13 Thomas Travall Towriess Bench hooks
FR2582565A1 (fr) * 1985-05-30 1986-12-05 Rey Benoit Scie a onglet de precision
EP0474397A1 (fr) * 1990-08-21 1992-03-11 Infom Co. Ltd. Dispositif de positionnement
DE29511619U1 (de) * 1995-07-18 1996-01-11 Reutter, Heiner, 71336 Waiblingen Sägevorrichtung für Profilschienen
US5538231A (en) * 1994-11-30 1996-07-23 Caterpillar Inc. Apparatus for locating a workpiece on a burn table

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3608886A (en) * 1969-06-11 1971-09-28 Gary Y Greene System of digital jigging
US4157819A (en) * 1977-01-27 1979-06-12 Meyer Richard W Adjustable work piece clamping system
FR2465555A1 (fr) * 1979-09-20 1981-03-27 Sagnial Henri Plateau de positionnement et d'ablocage de pieces a usiner sur machines diverses
EP0074565A2 (fr) * 1981-09-14 1983-03-23 Firma Erwin Halder Palette pour le positionnement et le serrage de pièces à usiner
FR2533856A1 (fr) * 1982-10-04 1984-04-06 Rapayelian Christian Dispositif de guide-lame pour boite a onglets ou similaires
GB2144673A (en) * 1983-08-12 1985-03-13 Thomas Travall Towriess Bench hooks
FR2582565A1 (fr) * 1985-05-30 1986-12-05 Rey Benoit Scie a onglet de precision
EP0474397A1 (fr) * 1990-08-21 1992-03-11 Infom Co. Ltd. Dispositif de positionnement
US5538231A (en) * 1994-11-30 1996-07-23 Caterpillar Inc. Apparatus for locating a workpiece on a burn table
DE29511619U1 (de) * 1995-07-18 1996-01-11 Reutter, Heiner, 71336 Waiblingen Sägevorrichtung für Profilschienen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022063989A1 (fr) * 2020-09-24 2022-03-31 Gla-Wel Gmbh Appareil de serrage, système de serrage et méthode de manipulation d'un appareil de serrage

Also Published As

Publication number Publication date
CN1104995C (zh) 2003-04-09
DE69824070D1 (de) 2004-07-01
CN1197715A (zh) 1998-11-04
DE69824070T2 (de) 2004-10-21
CA2233148C (fr) 2008-01-22
CA2233148A1 (fr) 1998-09-27
EP0867262B1 (fr) 2004-05-26

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