EP2085183A2 - Outil de serrage et/ou d'écartement doté d'une tige de poussée ou de traction - Google Patents

Outil de serrage et/ou d'écartement doté d'une tige de poussée ou de traction Download PDF

Info

Publication number
EP2085183A2
EP2085183A2 EP09002670A EP09002670A EP2085183A2 EP 2085183 A2 EP2085183 A2 EP 2085183A2 EP 09002670 A EP09002670 A EP 09002670A EP 09002670 A EP09002670 A EP 09002670A EP 2085183 A2 EP2085183 A2 EP 2085183A2
Authority
EP
European Patent Office
Prior art keywords
push
pull rod
clamping
lock
spreading
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
EP09002670A
Other languages
German (de)
English (en)
Other versions
EP2085183B1 (fr
EP2085183A3 (fr
Inventor
Manfred Geier
Ralf Strauss
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.)
Irwin Industrial Tools GmbH
Original Assignee
Irwin Industrial Tools GmbH
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 Irwin Industrial Tools GmbH filed Critical Irwin Industrial Tools GmbH
Priority to EP11001103.8A priority Critical patent/EP2324958B1/fr
Publication of EP2085183A2 publication Critical patent/EP2085183A2/fr
Publication of EP2085183A3 publication Critical patent/EP2085183A3/fr
Application granted granted Critical
Publication of EP2085183B1 publication Critical patent/EP2085183B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B25B5/068—Arrangements for positively actuating jaws with at least one jaw sliding along a bar

Definitions

  • the invention relates to a clamping and / or spreading tool with a push or pull rod.
  • the push or pull rod is held displaceable on a support of the clamping and / or spreading tool.
  • the clamping and / or spreading tool has a fixed jaw, which is fixedly connected to the carrier, and a fixed to the push or pull rod movable jaw, which can be moved by displacement of the push or pull rod relative to the fixed jaw.
  • a step mechanism which has an actuating lever which is pivotally mounted on the carrier, and a tiltable by the actuating lever on the push or pull rod driver.
  • the indexer is designed to convert the stroke of the actuating lever into a feed of the push or pull rod.
  • the push or pull rod For clamping a workpiece, the push or pull rod is displaced over the tilted driver towards the fixed jaw and for generating spreading forces away from the fixed jaw. A lock prevents sliding back of the push or pull rod.
  • a clamping and / or spreading tool which has a displaceable, lying on the actuating side pivot point of the actuating lever for generating higher clamping forces.
  • a reverse lock consists of a plate-like, always tilted in the unactuated state due to a tension spring locking plate. The release of clamping forces on the lock plate is realized by a separate release lever. Even with such clamping and / or spreading tools, the clamping forces are released explosively at unlocking the unlocking, and it is a relatively high expenditure of force necessary for this.
  • At least one lock is provided in the clamping and / or spreading tool according to the invention, the displacement against a clamping and / or spreading direction characterized locks that it is tilted by at least one coercive means, such as a spring, in particular coil spring, against the pull or push rod.
  • at least one coercive means such as a spring, in particular coil spring
  • At least one plate of the barrier for forming the desired tilting relative to the push or pull rod is pivoted by a coercive means about a carrier of the clamping and / or spreading tool fixed against a sliding or drawbar slidably mounted.
  • the fixed contact point can be positioned on the tension side of the push or pull rod.
  • the stationary abutment point, about which the at least one plate of the lock is pivoted to form the tilting, and a further contact point to which at least one drive plate of the transmission mechanism due to a coercive means, such as a compression spring, to form a jamming with the push or Pulling rod is pivoted, arranged substantially at the same level with respect to the push or pull rod.
  • the coercive means and the unblocking device are adapted to one another in such a way that they functionally engage with the lock on opposite sides of the push or pull rod, namely the positive means for tilting the lock and the unlocking device Solution of the blocking effect of the tilted barrier.
  • the coercion means on the actuation side of the push or pull rod and the unlocking device on the tension side of the push or pull rod engage with the lock.
  • a particularly simple structural measure for tilting the lock against the pull rod can be realized that the lock by the coercive means a fixed point is pivoted, which lies on that side of the push and / or pull rod, which is opposite to the side at which the engagement point of the unblocking device is located.
  • the wedging effect of the lock causing means on the tension side of the push or pull rod and the tilt canceling unlocking come on the operating side of the push or pull rod with the lock in engagement.
  • two coercive means such as two compression springs, are provided for one of the at least one barrier.
  • Such Zwangsmittelschreib that holds the lock in a tilted position with respect to the push or pull rod and reliably prevents a shift back of the push or pull rod, also causes when operating the indexer of the clamping and / or spreading tool, ie at a displacement of Push or pull rod in the clamping and / or spreading direction, an unwanted Mitlegagerung the lock is prevented.
  • a first coercive means may be arranged on the actuation side of the push or pull rod and a second coercive means on the tension side of the push or pull rod.
  • the coercive means in particular a fixed pivot point of the lock whereliegt, provides a secure tilting of the lock, while the remote to the fixed pivot coercive means mainly Mitlegagerung the lock on actuation of the indexer of the clamping and / or spreading tool in derogation.
  • a preferred embodiment of the invention is that in the clamping tool according to the invention, the displacement of the push or pull rod against a clamping and / or spreading direction is locked by a gear mechanism for displacing in the clamping and / or spreading direction and by an independent from the gear mechanism lock.
  • An unlocking device according to the invention is designed to cancel the blocking effect of the transmission mechanism and the lock when actuated.
  • the unblocking device is adapted to cancel the blocking effect of the transmission mechanism and the lock substantially simultaneously when actuated.
  • the unblocking device is designed to cancel the blocking effect of the transmission mechanism and the lock successively, in particular the blocking effect of the transmission mechanism before the blocking effect of the lock.
  • the unlocking device may be adapted to act on the gear mechanism and the lock in a predetermined stepwise unlocking sequence.
  • the locking effect of the transmission mechanism is caused by a driver for displacing the clamping and / or spreading by a positive means is always tilted, ie even in the unactuated state of the actuating lever, wherein the coercive means and the driver tuned to each other are that after a Betjanshub and during the slipping back of an operating lever of the transmission mechanism is no tilting of the driver relative to the push or pull rod.
  • the lock can be made in several parts, namely the fact that a locking plate is brought by a positive means in a always tilted position relative to the push or pull rod, so that a displacement against the feed direction of the thrust or pull rod is prevented and the clamping forces generated between the jaws are stored.
  • the coercive means is a spring, preferably a coil spring, which may be designed as a compression spring or as a tension spring and on the one hand acts on the blocking plate and on the other hand is supported on the carrier or held by the carrier.
  • the unlocking device may provide an unlocking lever, which according to the invention can be releasably engaged with the lock.
  • a third locking device can be realized that the release lever is spent in the same manner as the driver via a positive means in a relation to the push or pull rod tilted position.
  • the unlocking sequence can be defined by first releasing the locking action of the unlocking lever.
  • the transmission mechanism for displacing the push or pull rod in the clamping or spreading direction is designed to generate high clamping forces.
  • the transmission mechanism may comprise an actuating arm, which is pivotally mounted on a clamping side of the push or pull rod and also on the tension side with the driver in accordance with the power transmission engaged.
  • the lock is adapted to be supported on a fixed side of the clamping and / or spreading tool, in particular a stop of the push or pull rod slidably supporting carrier on a clamping side of the push or pull rod.
  • the unblocking device on a release lever or locking lever, with which a component for transmitting the actuating movement of the release lever is coupled, which component acts upon unlocking the actuating mechanism and the lock upon actuation of the trigger lever.
  • the release lever acts on the lock to release the tilt directly, while the tilting of the transmission mechanism via the component for transmitting the actuating movement is canceled.
  • the component part may be designed as a spring-biased rod, which is preferably mounted displaceably in the longitudinal direction.
  • the release lever is articulated on a carrier which displaceably supports the push or pull rod, wherein the hinge point of the release lever is arranged substantially at the level of the push or pull rod.
  • FIGS. 1 to 3 show an inventive clamping tool 1 with a support 3 to which a stationary jaw 5 is firmly connected and a push or pull rod 7 is held displaceable in the longitudinal direction of the push or pull rod 7.
  • a push or pull rod 7 At one end of the push or Pull rod 7 is releasably attached to an arm 9, at the end of a fixed jaw 5 diametrically opposed movable jaw 11 is fixed, with the movable jaw 11 moves to the stationary jaw 5 by displacement of the push or pull rod 7.
  • the arm 9 is arranged to hold the clamping jaw 11 at the other end of the push or pull rod 7, the function of a spreading tool is obtained.
  • the carrier 3 forms a housing in which at least partially components of a step transmission are housed.
  • An actuating lever 13 extends from an actuating side 15 of the push or pull rod through a housing wall of the support 3 through a clamping side 17 of the push or pull rod 7 and is pivotally mounted by a pivot joint 19 on the carrier 3.
  • an operator grips the handle 21 with her palm and with her fingers the actuating arm 13 and pulls the actuating lever 13 to the handle to carry out an actuating stroke.
  • the actuating lever 13 comprises an active arm 23 which is in constant contact with a gear mechanism 26 in the form of a driver 25, which is formed of three steel plates arranged parallel to one another.
  • a recorded in a blind hole 27 compression coil spring 29 forces the driver 25 while exerting a torque about a force input point 31 of the active arm 23 around in a relation to the push or pull rod 7 tilted position, so that a displacement of the push or pull rod 7 against the clamping direction S. is prevented, so a barrier effect is generated.
  • the ratio of Betrelinshebelarm w b by the distance of an operating range of the operator on Actuating lever 13 is defined to the pivot joint 19, the Wirkhebelarm w w results and with which short feeds of the push or pull rod 7 in the clamping direction S can be realized at a Betreli Trent and thus very high clamping forces up to 1000 Newton between the jaws 5, 11 are reached when clamping a workpiece, not shown.
  • the lever ratio is 10: 1.
  • the driver 25 and the plate lock 33 serve to obtain the clamping forces acting on the workpiece.
  • the clamping tool 1 has an unlocking device which can be actuated by a lever (39) which is articulated on the carrier 3.
  • the unlocking device 41 comprises in addition to the trigger lever 39 is a substantially parallel to the push or pull rod 7 extending plunger 43 which is fixedly mounted on the trigger lever 39 and extends through the plate lock 33 through or past the latter to the canted driver 25.
  • a compression spring 45 has the task to spend the release lever 39 in a passive position.
  • the unlocking device is designed to solve the locking effects of the blocking components (25, 33) successively upon actuation of the trigger lever 39, wherein preferably here first the blocking effect of the tilted driver 25 and then the blocking effect of the plate lock 33 is released. This is according to the execution of the FIGS. 1 to 3 achieved in that the distance of the plunger 43 is tuned by the driver on the pivot angle distance between the plate lock 33 and a plate lock 33 near portion of the trigger lever 39.
  • the release lever 39 is actuated approximately halfway through its actuation stroke.
  • the driver 25 facing the end of the plunger 43 comes into contact with the lying on the actuating side 15 portion of the driver 25 and pivots the driver 25 to the force input point 31 from its tilted position in a substantially to the push or pull rod 7 vertical position, in which would be the push or pull rod through the driver against the clamping direction S displaced.
  • the released forces are derived in the housing by elastic deformation of housing parts. In this position, however, a displacement of the push or pull rod against the clamping direction S is not possible because it is hindered by the still existing blocking effect of the locking plates 33, which still maintains at least a portion of the clamping forces between the jaws. Consequently, the operator experiences no explosive release forces when first releasing the locking action of the driver 25.
  • Fig. 3 is the trigger lever 39 is fully actuated, so that a portion of the tension-side portion of the trigger lever 39 comes into engagement in the region of the tension-side end of the plate lock 33 and thus the plate lock 33 is pivoted to release the jam and the clamping forces. Due to the distance between the point of engagement of the trigger lever 39 and the compression spring 35 only a small force must be expended to unlock, even if high clamping forces prevail.
  • FIGS. 4 to 6 a further embodiment of the invention is shown, wherein for better readability of the figure description for identical and similar components for execution according to the FIGS. 1 to 3 the same reference numerals are used, which are increased by 100.
  • the clamping tool 101 differs from the clamping tool 1 according to the FIGS. 1 to 3 in that the lock or plate lock 133 is not brought by means of a seated in a receptacle compression spring in the tilted position, but by means of a tension spring, the held at one end by the carrier and engages at the other end in a hole in the plate lock 133.
  • Another distinguishing feature is the arrangement of a compression spring 145, which has the task to spend the release lever 139 in a passive position. In the execution according to the FIGS. 4 to 6 the compression spring 145 is not supported on the plate lock 139 but on the carrier 103.
  • the plunger 143 does not come into contact with the cam 125 of the gear mechanism 126 at its end, but the plunger 143 is provided with a projecting projection 151 projecting toward the push rod, which can releasably engage the operating side portion of the cam 125 with its canting.
  • clamping tool has a step gear, with the even higher clamping forces than with the clamping tool according to the FIGS. 1 to 3 can be caused because the Wirkhebelarm w w with respect to the Betchanistshebelarm w b is even smaller and thus very favorable leverage ratios of 12: 1 to produce high clamping forces.
  • FIG. 7 a further embodiment of a clamping and / or spreading tool according to the invention is shown, wherein for better readability of the figure description for identical or similar components to the embodiments according to the FIGS. 1 to 6 the same reference numerals are used, which are increased by 100 and 200, respectively.
  • the clamping tool 202 differs from the previously described embodiments essentially in that a different lock or plate lock 233 and a different unlocking device 241 are provided.
  • the plate lock 233 comprises two plates 232, which are tilted by a schematically indicated positive means in the form of a compression spring 235 relative to the push or pull rod.
  • a compression spring 235 By the compression spring 235, the plates 232 of the plate lock 233 are pivoted about a stationary on the carrier 203 of the clamping tool 202 stop 261, which lies on the clamping side 217 of the push or pull rod 207.
  • the stop 261 is at the same level with respect to the push rod 207 as the force input point 232 of the operating lever 213 about which the follower 225 is the transmission mechanism 226 be pivoted due to a compression coil spring not shown.
  • the unlocking device according to the invention 241 comprises a parallel to the push or pull rod 207 displaceable plunger 243.
  • the plunger 243 comprises two protrusions 263, 265, which cooperate entkantend upon actuation of the unblocking device 241 with the plates 232 and the driver 225, the latter against the effect the respective coercive agent are swung back.
  • the unlocking device 241 is shown in two operating states, wherein the unactuated operating state is illustrated by solid lines, while the actuated state, ie the release of the blocking effects of the plate lock 233 and the tilted driver 225, is shown by dashed lines.
  • the plunger 243 moves in the clamping direction S.
  • the projections 263 and 265 respectively to the plates 233 and Drivers arranged that the blocking effect of the plate lock and the transmission mechanism 226 is canceled substantially simultaneously.
  • the simultaneous cancellation of the blocking effects is structurally realized in that the distance between the projections 263 and 265 in the clamping direction S to the plates 232 of the plate lock 233 and to the drivers 225 of the transmission mechanism 226 is substantially equal.
  • FIG. 8 a further embodiment of a clamping tool according to the invention is shown, wherein for better readability of the figure description for identical and similar components to the embodiments according to the FIGS. 1 to 7 the same reference numerals are used, which are increased by 100, 200 and 300, respectively.
  • the clamping tool 301 differs in particular from the clamping tool 201 according to the FIG. 7 in that the disk lock 333 and the unlocking device 341 are made different.
  • the plate lock 333 comprises two compression means 371 and 373 designed to cause a pivoting of the plates 332 around the stationary stopper 361 around.
  • the compression spring 371 on the clamping side 317 of the push or pull rod 307 causes a secure tilting of the plates 332 relative to the push rod 307, whereby a reliable non-return lock for the push rod 397 is ensured.
  • the compression spring 373 on the actuation side 315 of the push or pull rod 307 prevents Mitverlagern the plates 332 of the plate lock 333 as soon as the transmission mechanism 326 is actuated via the actuating lever 313 and the push or pull rod 307 is displaced in the clamping direction S.
  • the plates 332 thus always remain in contact with the stop 361.
  • the unlocking device 341 includes only a single projection 375, which with the canted drivers 325 of the transmission mechanism 326, the blocking effect in a lifting manner can come as soon as the release lever 339 of the unlocking device 341 is pressed accordingly strong.
  • the projection 375 also serves as a stop for a compression spring 345, which pushes the plunger 343 back into its passive starting position, the in FIG. 8 is shown.
  • the simultaneity of the Sperr Obersaufhebung is achieved in that the distance of the release lever to the plates 332 and the projection 375 to the drivers 325 is substantially equal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Clamps And Clips (AREA)
  • Basic Packing Technique (AREA)
  • Jigs For Machine Tools (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Screen Printers (AREA)
EP09002670A 2004-05-19 2004-12-08 Outil de serrage et/ou d'écartement doté d'une tige de poussée ou de traction Expired - Fee Related EP2085183B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11001103.8A EP2324958B1 (fr) 2004-05-19 2004-12-08 Outil de serrage et/ou d'écartement doté d'une tige de poussée ou de traction

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004024862A DE102004024862A1 (de) 2004-05-19 2004-05-19 Spann- und/oder Spreizwerkzeug
EP04803645A EP1750905B1 (fr) 2004-05-19 2004-12-08 Outil de serrage et/ou d'extension comprenant une tige de poussee ou de traction

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP04803645A Division EP1750905B1 (fr) 2004-05-19 2004-12-08 Outil de serrage et/ou d'extension comprenant une tige de poussee ou de traction
EP04803645.3 Division 2004-12-08

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP11001103.8 Division-Into 2011-02-10

Publications (3)

Publication Number Publication Date
EP2085183A2 true EP2085183A2 (fr) 2009-08-05
EP2085183A3 EP2085183A3 (fr) 2009-10-07
EP2085183B1 EP2085183B1 (fr) 2013-02-13

Family

ID=34959880

Family Applications (3)

Application Number Title Priority Date Filing Date
EP11001103.8A Expired - Fee Related EP2324958B1 (fr) 2004-05-19 2004-12-08 Outil de serrage et/ou d'écartement doté d'une tige de poussée ou de traction
EP04803645A Active EP1750905B1 (fr) 2004-05-19 2004-12-08 Outil de serrage et/ou d'extension comprenant une tige de poussee ou de traction
EP09002670A Expired - Fee Related EP2085183B1 (fr) 2004-05-19 2004-12-08 Outil de serrage et/ou d'écartement doté d'une tige de poussée ou de traction

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP11001103.8A Expired - Fee Related EP2324958B1 (fr) 2004-05-19 2004-12-08 Outil de serrage et/ou d'écartement doté d'une tige de poussée ou de traction
EP04803645A Active EP1750905B1 (fr) 2004-05-19 2004-12-08 Outil de serrage et/ou d'extension comprenant une tige de poussee ou de traction

Country Status (6)

Country Link
US (2) US7896322B2 (fr)
EP (3) EP2324958B1 (fr)
CN (2) CN101027162B (fr)
AU (1) AU2004320073B2 (fr)
DE (3) DE102004024862A1 (fr)
WO (1) WO2005115690A1 (fr)

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Publication number Publication date
EP2324958B1 (fr) 2013-06-19
CN101027162B (zh) 2010-06-23
EP1750905A1 (fr) 2007-02-14
US7942392B2 (en) 2011-05-17
US20080179801A1 (en) 2008-07-31
US20070194510A1 (en) 2007-08-23
US7896322B2 (en) 2011-03-01
CN101018645A (zh) 2007-08-15
EP1750905B1 (fr) 2009-06-24
EP2085183B1 (fr) 2013-02-13
AU2004320073B2 (en) 2010-05-13
AU2004320073A1 (en) 2005-12-08
EP2324958A3 (fr) 2011-06-29
DE502004009673D1 (de) 2009-08-06
DE102004024862A1 (de) 2006-01-05
CN101027162A (zh) 2007-08-29
EP2324958A2 (fr) 2011-05-25
WO2005115690A1 (fr) 2005-12-08
DE502005008332D1 (de) 2009-11-26
CN100411818C (zh) 2008-08-20
EP2085183A3 (fr) 2009-10-07

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