EP0275443A2 - Dispositif de serrage pour cadres, notamment pour cadres coupés en biais - Google Patents

Dispositif de serrage pour cadres, notamment pour cadres coupés en biais Download PDF

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Publication number
EP0275443A2
EP0275443A2 EP87118028A EP87118028A EP0275443A2 EP 0275443 A2 EP0275443 A2 EP 0275443A2 EP 87118028 A EP87118028 A EP 87118028A EP 87118028 A EP87118028 A EP 87118028A EP 0275443 A2 EP0275443 A2 EP 0275443A2
Authority
EP
European Patent Office
Prior art keywords
clamping
frame
jaw
operating angle
jaws
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Withdrawn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
EP87118028A
Other languages
German (de)
English (en)
Other versions
EP0275443A3 (fr
Inventor
mit beschränkter Haftung Werkzeug-Gesellschaft
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.)
WERKZEUG-GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG
Original Assignee
mit beschränkter Haftung Werkzeug-Gesellschaft
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
Application filed by mit beschränkter Haftung Werkzeug-Gesellschaft filed Critical mit beschränkter Haftung Werkzeug-Gesellschaft
Publication of EP0275443A2 publication Critical patent/EP0275443A2/fr
Publication of EP0275443A3 publication Critical patent/EP0275443A3/fr
Withdrawn legal-status Critical Current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
    • B25B1/00—Vices
    • B25B1/20—Vices for clamping work of special profile, e.g. pipes
    • B25B1/205—Vices of the chain or strip type

Definitions

  • the invention relates to a frame clamping device, in particular for mitred frames, with a plurality of loose angle jaws for enclosing the frame corners and with a clamping element enclosing the angle jaws, one of the angle jaws being designed as an operating angle jaw on which the tightening of the clamping element is carried out.
  • Such a frame clamping device with loose angle jaws is known from DE-PS 457 013.
  • An inelastic cord is used as the tensioning element, the ends of which are attached to a roller which is rotatably mounted in the operating angle jaw.
  • the roller for tightening the tensioning element can be rotated by means of a socket wrench, a pawl arrangement provided on the operating angle jaw ensuring that the roller is locked.
  • the known frame tensioning device is, however, complex in view of its tensioning device with a ratchet lock and, in addition, particularly cumbersome when changing between widely differing size frames.
  • a frame clamping device in which the angle jaws are connected to one another via guide rods running parallel to the frame plane and are displaceable along the same.
  • the tensioning element there which is elastic at least over part of its length, is provided with holes and is hooked onto thorns or the like protruding from the angular jaws, the tightening of the tensioning element in each case being carried out freely.
  • this known frame clamping device there is no separate clamping device, but the free-hand actuation of the clamping element requires a corresponding cohesion of the angle jaws via their guide rods, which in turn make the clamping device complex and also bulky.
  • the invention has for its object to design the generic frame clamping device with loose angle jaws such that it is particularly inexpensive to manufacture and easy to handle.
  • the invention provides that the clamping element is elastic over its entire or partial length, permanently attached at one end to an anchoring leg of the operating angle jaw, with its other end section by a Longitudinal guide is pulled through in a guide leg of the operating angle jaw and can be gripped with a pulling hand and that a clamping eccentric for clamping the tightened clamping element is arranged on the guide leg, which is adjustable by means of the second hand holding the operating angle jaw.
  • the frame clamping device according to the invention consists of only a few parts, namely three identical angular jaws, the operating angular jaw with clamping eccentric and the clamping element.
  • the clamping can now be carried out freely, so that complex clamping devices are completely eliminated.
  • an elastic tensioning element By using an elastic tensioning element, the set tension is maintained even during longer glue drying times.
  • the frame tensioning device according to the invention is characterized by being very inexpensive to manufacture and easy to handle.
  • the longitudinal guide for the tensioning element passes through the guide leg in a substantially straight line and that a wide finger or thumb contact surface for the holding hand is provided on the back of the anchoring leg and extends to the outlet opening of the longitudinal guide and that Eccentric lever in Finger reach of this holding hand is and is pivotable in or against the direction of the longitudinal guide.
  • the tensioning element can consist of an inelastic band or cord piece and of a coil spring which is fastened to the anchoring leg of the operating angle jaw.
  • the helical spring is advantageously accommodated in at least part of its length in a longitudinal recess of the anchoring leg, so that the tensioning device can also be used for relatively small frames.
  • the clamping element is clamped in the embodiment according to the invention on a non-elastic part of the clamping element, which is advantageous in view of the wear.
  • the loose angle jaws each have a circular arc-shaped groove on their rear side for receiving the piece of tape or cord, and that the groove is bridged at both ends by a threading web. Due to the wide, circular arc-shaped groove, an essentially diagonal pressure of the angular jaws on the frame or the like is ensured on the one hand, and on the other hand, in conjunction with the two end threading webs, a certain pre-alignment of the loose angular jaws is given, which means that they attach to the frame to be tensioned or the like simplified.
  • the frame clamping device consists of three identical, loose angle jaws 1, 2, 3, an operating angle jaw 4 and a clamping element 5 enclosing the loose angle jaws 1, 2, 3 and fastened to the operating angle jaw 4.
  • the angled operating jaw 4 is L-shaped in plan view and comprises an anchoring arm 6 and a guide arm 7.
  • the anchoring arm 6 has a blind hole-like recess 8 which runs parallel to the side of the frame 9 to be clamped which is associated with this anchoring arm and which is shown in FIG. 1 is indicated by dash-dotted lines.
  • a coil spring 10 is largely accommodated in the recess 8 and is anchored at its rear end.
  • the Coil spring 10 forms, together with a cord piece 11 connected to it, the tensioning element 5, which overall can be stretched out elastically as a result of the coil spring 10.
  • the loose angle jaws like also FIG. 4, each have on their rear side a circular arc-shaped groove 12 extending over approximately 90 ° for receiving the cord piece 11, with the groove 12 at each end by a threading web 13 at each end, 14 is bridged.
  • the guide leg 7 of the operating angle jaw 4 has a longitudinal guide 15, which is oriented parallel to its associated side of the frame 9, for the free end of the clamping element 5.
  • the guide leg 7 is box-shaped, a hole being provided in its upper side wall 16 according to FIG. 1 and in the opposite box wall 17, through which the tensioning element 5 is pulled.
  • a clamping eccentric 21 is pivotally mounted on an axis 20, which is pivoted down in the position according to FIGS. 1 and 2 in the direction of the box side wall 17 until it hits stops 22 arranged on the box bottom. In this position, the clamping element 5 is clamped tight between the thickened part 23 of the clamping eccentric and the bottom 24 of the guide leg.
  • Fig. 4 shows the clamping eccentric in the unlocked position.
  • the four angle jaws 1 to 4 are placed on the frame corners in the manner shown in FIG. 1, the overall arrangement resting on a table top or the like.
  • the angled operating jaw 4 is then held with the left hand, the thumb of the left hand advantageously being placed against the relatively wide back 25 of the anchoring leg 6.
  • the solid end 26 of the cord piece is gripped and tightened to extend the coil spring 10, after which the clamping eccentric 21 designed as an eccentric lever is pressed down, for example with the index finger of the left hand, while clamping the tensioning element 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
EP87118028A 1987-01-20 1987-12-05 Dispositif de serrage pour cadres, notamment pour cadres coupés en biais Withdrawn EP0275443A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873701393 DE3701393A1 (de) 1987-01-20 1987-01-20 Rahmenspannvorrichtung, insbesondere fuer auf gehrung geschnittene rahmen
DE3701393 1987-01-20

Publications (2)

Publication Number Publication Date
EP0275443A2 true EP0275443A2 (fr) 1988-07-27
EP0275443A3 EP0275443A3 (fr) 1989-07-26

Family

ID=6319077

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87118028A Withdrawn EP0275443A3 (fr) 1987-01-20 1987-12-05 Dispositif de serrage pour cadres, notamment pour cadres coupés en biais

Country Status (5)

Country Link
EP (1) EP0275443A3 (fr)
DE (1) DE3701393A1 (fr)
DK (1) DK21888A (fr)
FI (1) FI880073A (fr)
NO (1) NO880214L (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5775678A (en) * 1993-07-12 1998-07-07 Ferland; Serge Eye glass repair tool
CN111993488A (zh) * 2020-08-13 2020-11-27 东方电气集团东方锅炉股份有限公司 一种管子-管板角焊缝射线检测胶片钻孔装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE457013C (de) * 1928-03-07 Julius Klement Rahmenspannvorrichtung
GB354375A (en) * 1930-05-09 1931-08-10 Alfred Edwin Hughes A new or improved device for facilitating the jointing of pipes and the like
US3669439A (en) * 1970-07-06 1972-06-13 Anastacio V Sanchez Clamp
US4163547A (en) * 1978-02-21 1979-08-07 Jerome Henry M Clamping apparatus for assembling picture frames
WO1982003041A1 (fr) * 1981-03-05 1982-09-16 Bernard Schwab Appareil d'assemblage pour la confection de cadres ou de panneaux
DE3236578A1 (de) * 1982-10-02 1984-04-26 Bessey & Sohn Gmbh & Co, 7000 Stuttgart Rahmenspanngeraet
EP0121770A2 (fr) * 1983-03-10 1984-10-17 Hans Forrer Dispositif pour l'assemblage de constructions en bois et métal
US4560153A (en) * 1984-04-20 1985-12-24 Han David C Fixing tool for square frame
DE3505439A1 (de) * 1985-02-16 1986-08-21 Robert 5446 Engeln Wolff Rahmenspannvorrichtung

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE457013C (de) * 1928-03-07 Julius Klement Rahmenspannvorrichtung
GB354375A (en) * 1930-05-09 1931-08-10 Alfred Edwin Hughes A new or improved device for facilitating the jointing of pipes and the like
US3669439A (en) * 1970-07-06 1972-06-13 Anastacio V Sanchez Clamp
US4163547A (en) * 1978-02-21 1979-08-07 Jerome Henry M Clamping apparatus for assembling picture frames
WO1982003041A1 (fr) * 1981-03-05 1982-09-16 Bernard Schwab Appareil d'assemblage pour la confection de cadres ou de panneaux
DE3236578A1 (de) * 1982-10-02 1984-04-26 Bessey & Sohn Gmbh & Co, 7000 Stuttgart Rahmenspanngeraet
EP0121770A2 (fr) * 1983-03-10 1984-10-17 Hans Forrer Dispositif pour l'assemblage de constructions en bois et métal
US4560153A (en) * 1984-04-20 1985-12-24 Han David C Fixing tool for square frame
DE3505439A1 (de) * 1985-02-16 1986-08-21 Robert 5446 Engeln Wolff Rahmenspannvorrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5775678A (en) * 1993-07-12 1998-07-07 Ferland; Serge Eye glass repair tool
CN111993488A (zh) * 2020-08-13 2020-11-27 东方电气集团东方锅炉股份有限公司 一种管子-管板角焊缝射线检测胶片钻孔装置

Also Published As

Publication number Publication date
DK21888A (da) 1988-07-21
FI880073A0 (fi) 1988-01-08
FI880073A (fi) 1988-07-21
DK21888D0 (da) 1988-01-19
NO880214D0 (no) 1988-01-19
DE3701393A1 (de) 1988-07-28
NO880214L (no) 1988-07-21
EP0275443A3 (fr) 1989-07-26

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