WO1998034761A2 - Spannzwinge - Google Patents
Spannzwinge Download PDFInfo
- Publication number
- WO1998034761A2 WO1998034761A2 PCT/DE1998/000333 DE9800333W WO9834761A2 WO 1998034761 A2 WO1998034761 A2 WO 1998034761A2 DE 9800333 W DE9800333 W DE 9800333W WO 9834761 A2 WO9834761 A2 WO 9834761A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- clamping
- clamping jaw
- clamp according
- holding
- counter
- Prior art date
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
- B25B5/14—Clamps for work of special profile
- B25B5/145—Clamps for work of special profile for plates
-
- 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
- B25B5/14—Clamps for work of special profile
- B25B5/142—Clamps for work of special profile for windows and frames
-
- 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
- B25B5/14—Clamps for work of special profile
- B25B5/147—Clamps for work of special profile for pipes
Definitions
- the invention relates to a clamp, in particular for pressing elongated plate and / or rod-shaped workpieces in their longitudinal direction against an abutment surface of a second workpiece, consisting of a holding frame which is at least provided with a back and forth movable clamping device with which the Contact force acting contact surface can be generated, and at least one counter-holding device with which a clamping force acting against the elongated workpiece can be transmitted.
- the clamping force for holding back is generated by the holding device. This is designed so that it can transmit the clamping force with its two clamping jaws to two parallel side surfaces of an elongated workpiece.
- the counter-holding devices of the previously known clamping clamps have clamping jaws which are in guide grooves are movable. These guide grooves are symmetrical and V-shaped to each other on a jaw carrier. When a workpiece is pressed on, the clamping jaws are moved in the direction of the narrowing guide grooves. This results in a wedge effect that mainly serves to clamp the workpiece.
- the V-shaped arrangement of the guide grooves allows the known clamping clamps to be used for workpieces to be clamped for a specific thickness range.
- the clamping jaws arranged in the symmetrical guide grooves are always exactly opposite when they are attached to a workpiece. If the clamping jaws are not exactly opposite one another, this leads to one of the clamping jaws moving in its guide groove in one direction when the workpiece is pressed on and the opposite clamping jaw moving in the other direction. As a result, the workpiece is rotated and cannot be clamped. In order to be able to handle the known clamps despite these difficulties, these are provided with additional auxiliary devices with which the clamping jaws can always be guided in a symmetrical position in the guide grooves.
- the auxiliary device for the symmetrical guidance of the clamping jaws increases the manufacturing costs.
- the auxiliary device also increases and increases the weight of the clamp the heavy weight makes handling difficult.
- the invention is therefore based on the object of creating a clamping clamp for clamping elongated plate-shaped and / or rod-shaped workpieces, which is simple and inexpensive to produce and easy to handle.
- the counter-holding device has at least one clamping jaw carrier with a fixed rotary bearing for at least one clamping jaw and a counter bearing which absorbs the adhesive force which can be generated by the clamping jaw, in that the clamping jaw has a clamping surface, the radial distance between which from the axis of rotation of the clamping jaw increases steadily in at least one angular range, and that the clamping jaw and the counter bearing are arranged opposite one another on the clamping jaw carrier.
- a further clamping jaw is preferably provided as the counter bearing. This results in a symmetrical construction of the clamp, which makes handling very easy. Furthermore, only a short clamping path of the clamping device is required to turn the clamping jaws to such an extent that a sufficiently high clamping force is transferred to the workpiece.
- the rotary bearing is arranged in a stationary manner on the clamping jaw carrier, which results in less manufacturing and assembly effort. Furthermore, an additional auxiliary device can advantageously be dispensed with.
- the number of individual parts required is small. Even a low level of manufacturing accuracy for the individual parts of the pivot bearing is sufficient for the clamping clamp to function properly. Wear on the individual parts of the pivot bearing does not affect the function of the clamp. It is inexpensive to manufacture and easy to handle.
- the radial distance between the clamping surface and the axis of rotation can increase in the same way as the radial distance between a spiral line and its center.
- the radial spacing of the clamping jaws preferably has such a spiral shape that the clamping force can always be transmitted from the clamping jaws to workpieces of different thicknesses at the same angle A.
- the angular range over which the clamping surface extends is divided into angular steps of the same size.
- the radial distance from the axis of rotation to the clamping surface increases by the same amount with each angular step.
- the angle A is preferably small, since high clamping forces can be achieved with no angle A. However, it must not come too close to a value of 0 ° because manufacturing tolerances and elastic deformations of the components could lead to the workpiece not being able to be clamped sufficiently tightly and slipping between the clamping jaws.
- the radial distance from the axis of rotation to the clamping surface does not have to increase by the same amount in the same angular steps.
- the amounts can also increase progressively or degressively per angular step. It is also possible to switch between progressive and degressive growth. This can be made dependent on the combination of the materials, on the one hand the surfaces of the clamping jaws and on the other hand the workpieces to be clamped, which each form a friction pair.
- the angular range of the clamping surfaces which is provided for clamping a workpiece can be assigned stops which restrict the rotatability of the clamping jaw to this angular range.
- Suitable clamping jaw pairs can be provided for clamping different workpieces. These are easily interchangeable.
- the angular range required for a clamping surface is based on the use of the clamp. For example Workpieces can be clamped in a thickness range of approximately 1 mm to 40 mm, a clamping surface in an angular range of, for example, 280 ° is sufficient. If only workpieces with a constant thickness are to be clamped, an angular range of approximately 20 ° is sufficient. In the latter case, the clamping jaw can be made very small.
- the clamping jaw carrier preferably has a recess in the area between the rotary bearings, through which elongate workpieces can protrude. This measure also enables elongated workpieces with an inclined end face to be clamped by the counter-holding device. This increases the possible uses of the clamp.
- the pivot bearings together with the clamping jaws can spread a little apart during use. So that the clamping jaws do not only touch the workpiece in one point in this case, the two clamping jaws received via the rotary bearings are expediently received so that they can be tilted so that they can be deflected from their position which is coaxial with the central axis of the rotary bearings.
- the rotary bearings of the clamping jaws are each formed from a bearing bolt arranged on the clamping jaw carrier.
- the jaws each have a hole with which they are attached to the free ends of the bearing bolts.
- the bearing bolts are expediently spherical.
- the bearing play between the jaws and the bearing pin can be chosen to be relatively large. This damages the function the clamp does not and also drastically reduces the manufacturing costs.
- a securing element is advantageously provided in each case to secure the clamping jaws against axial displacement on the bearing bolts.
- This can be attached as a single component, for example in the area of the free ends of the bearing bolts.
- These securing elements can be easily removed for easy replacement of the jaws. Pairs of clamping jaws with differently designed clamping surfaces or for different thickness ranges can be exchanged very easily.
- the securing element can be integrated in each clamping jaw.
- the securing element can be designed, for example, as a plastic clip cast into the bore of a clamping jaw, which clips into a groove in the bearing bolt. This allows the clamping jaws to be fixed in the axial direction when they are attached to the bearing bolts. The mobility of the clamping jaw is not restricted. This integral design further reduces the number of individual parts and the manufacturing costs.
- Plastic clamping jaws are advantageous for clamping wood.
- the strength can be increased by fiber-reinforced materials.
- Metal clamping jaws can also be used to clamp metal parts firmly.
- the clamping jaws can be loaded with a torque for resetting to a defined starting position.
- the torque acts in the direction of the decreasing radial distance between the clamping surface and the axis of rotation. Any suitable means for generating the torque can be used.
- a spring is preferably provided for each clamping jaw. The springs cause opposite turns, so that the rotational movement of the symmetrical clamping jaws also take place symmetrically.
- the provision of the clamping clamp is particularly easy due to the resetting of the clamping jaws, since the clamping jaws always lay against the workpiece surface.
- the frictional contact that occurs automatically in this way is required to build up a clamping force. Without resetting the clamping jaws, they would have to be manually brought into frictional contact with the workpiece surface.
- the ends of the clamping jaws which face the free ends of the bearing bolts, have a bevel on the end.
- the bevels of the clamping jaws are particularly helpful in such an embodiment of the clamping clamp, which is suitable for small workpiece thicknesses and is provided with a reset of the clamping jaws.
- the resetting always moves the clamping jaws to the starting position, in which the points of the clamping surfaces that are furthest away from the axis of rotation move as far as possible towards one another, so that the smallest possible gap remains between the clamping jaws.
- Embodiments are possible with which workpiece thicknesses of 1 mm and less can be clamped and whose clamping jaws abut one another in the starting position.
- the clamping faces of the clamping jaws are advantageously provided in their circumferential direction with at least one groove each, which is adapted to the cross-sectional shape of the workpiece to be clamped.
- the clamping device can simply have a screw spindle which can be screwed back and forth in a nut thread of a holding arm.
- the holding arm can be slidably arranged and locked at any point on the holding frame his.
- a commercially available screw clamp can be used as the basis for this embodiment. Instead of the conventional counter-holder of a screw clamp, only the counter-holding device according to the invention has to be attached to the holding frame.
- a lever clamp with a clamping claw that can be moved back and forth can be arranged on the holding frame as a clamping device.
- Such lever clamps are available on sheet metal holding pliers, so one can serve as the basis for the clamp.
- a counter-holding device is provided at two ends.
- a common clamping device is arranged between these two counter-holding devices, with which the counter-holding devices can be moved towards and away from one another.
- At least two counter-holding devices and a clamping device can be provided for clamping elongated miter workpieces.
- the holding frame then preferably has three holding arms.
- Each counter-holding device and the grips are each arranged on a holding arm.
- At least the holding arms can advantageously be pivoted relative to one another with the counter-holding devices. In this way, workpieces can be clamped together at any miter angle. Compared to a conventional miter vise, it is possible with the proposed clamp to press the contact surfaces of the workpieces firmly against one another.
- the holding arms can simply be pivoted and releasably locked via a node element.
- FIG. 2 is a plan view of the clamp according to FIG. 1,
- 3 is a plan view of two jaws in the starting position
- FIG. 5 shows a plan view of two clamping jaws which clamp a workpiece of approximately 25 mm in thickness
- FIG. 6 is a plan view of two clamping jaws which clamp a workpiece of approximately 34 mm in thickness
- FIG. 7 is a plan view of two jaws that clamp a workpiece of approximately 40 mm in thickness
- Fig. 8 is a front view of an in use
- FIG. 11 shows a clamping clamp with grooved clamping jaws for clamping pipes in a front view and a top view
- FIG. 12 shows a clamping jaw made of plastic with a plastic clip as a securing element.
- FIG. 13 shows a front view of the clamping clamp with a clamping jaw in a half section
- FIG. 14 is a partial plan view of a clamp
- FIG. 15 shows a plan view of a simple embodiment of the clamping clamp with a clamping jaw.
- 16 shows a plan view of a clamping clamp with two counter-holding devices on pivotable holding arms, for tensioning mitres.
- the clamp 1 for pressing elongated plate and / or rod-shaped workpieces 2 in the longitudinal direction against a contact surface 3 of a second workpiece 4 consists of a holding frame 5, which is provided with a back and forth movable clamping device 6, with which the pressure force F A acting on the contact surface 3 can be generated, and a counter-holding device 7 with which a clamping force acting against the second workpiece 4 can be transmitted.
- the embodiment of the clamping clamp shown in FIGS. 1 and 2 is based on a commercially available screw clamp. Instead of the conventional counter-holder of a screw clamp, only the counter-holding device 7 according to the invention is attached to the holding frame 5.
- the clamping device 6 simply consists of the screw 6a of the screw clamp, which can be screwed back and forth in a nut thread 6b of the holding arm 6c of the screw clamp.
- the holding arm 6c is displaceable and can be locked at any point by tilting on the holding frame 5 of the screw clamp.
- the counter-holding device 7 has a jaw support 8, each with a fixed rotary bearing 9 and 10 for two jaws 11 and 12.
- the clamping jaws 11 and 12 have clamping surfaces 13 and 14 whose radial distance from the axis of rotation 15 or 16 of the clamping jaws 11 and 12 increases continuously in at least one angular range.
- the jaws 11 and 12 are arranged symmetrically, their axes of rotation 15 and 16 are parallel to each other.
- the clamping jaw carrier 8 preferably has a cutout 8d in the area between the rotary bearings 9 and 10. It is therefore essentially U-shaped. As shown in FIG. 1, elongated workpieces with an inclined end face can protrude through the cutout 8d of the clamping jaw carrier 8 through the cutout.
- FIG. 3 it can be seen that the angular ranges over which the clamping surfaces 13 and 14 extend are divided into several equally large angular steps of 10 ° in the present embodiment.
- the radial distance from the axis of rotation 15 or 16 to the clamping surface 13 or 14 increases with each angular step by the same amount.
- the clamping force F ⁇ can always be transferred at the same angle A to workpieces 17a, 17b, 17c and 17d of different thicknesses, as shown in FIGS. 4, 5, 6 and 7.
- workpiece thicknesses of approximately 1 mm to 40 mm can be clamped.
- FIG. 4 also shows the friction force F R which can be transmitted by friction and the normal force F N which occur due to the pressing force F A generated by the clamping device.
- the clamping jaws 11 and 12 have bores 18 and 19, by means of which they are plugged onto the free ends of the bearing bolts 20 and 21. So that the clamping jaws 11 and 12 can be tilted on the bearing bolts 20 and 21, the latter are spherical.
- FIG 8 a clamp is shown in use, which generates very high clamping forces.
- Your bearing bolts 20 and 21 are spread apart because the jaw carrier 8 and the bearing bolts deform elastically.
- the clamping jaws 11 and 12 are deflected from the position coaxial to the central axis of the bearing bolts 20 and 21 and therefore lie precisely on the parallel side surfaces despite the elastic deformation of the elongated workpiece 2. The result is very good power transmission to the workpiece 2.
- a securing element 22 and 23 is provided on each bearing pin 20 and 21.
- the securing element 20 and 23 is arranged as a single component on the free ends of the bearing bolts 20 and 21.
- the clamping jaws 11 and 12 are acted upon by a torque for resetting to a defined starting position.
- the torque acts in the direction of the decreasing radial distance between the clamping surface 13 or 14 and the axis of rotation 15 or 16. It is effected in the embodiment shown by one spring 24 and 25 each. In this case they are leg springs.
- the springs 24 and 25 cause oppositely directed rotations, as are indicated in FIG. 2 by the arrows M and N.
- the bevels 26 and 27 serve to facilitate the attachment of the clamp on an elongated workpiece.
- the clamping jaws 11 and 12 are provided in their circumferential direction with at least one groove 28 and 29, which are adapted to the cross section of the cylindrical, tubular workpiece 2.
- a lever clamp 30 with a clamping claw 31 that can be moved back and forth is arranged on the holding frame 5 as the clamping tool 6.
- Such lever clamps 30 are present on lockable holding tongs for sheets with which several sheets can be gripped. Therefore, this embodiment of the clamp is simply based on such holding pliers.
- the short distance by which the clamping claw 31 can move back and forth when actuated is sufficient for a sufficient rotational movement of the clamping jaws 11 and 12 so that the workpiece 2 can be clamped firmly.
- a counter-holding device 7a and 7b is provided at two ends of the clamping clamp. Between these two counter-holding devices 7a and 7b, a common clamping tool 6 is arranged, with which the counter-holding devices can be moved towards and away from one another.
- the clamping device 6 consists of a screw spindle 6a and a clamping tube 32.
- the clamping tube 32 serves as a holding frame 5 and is provided with a nut thread 32a in which the screw spindle 32b can be screwed back and forth.
- a knob 33 or the like is provided for rotating the screw spindle 32b.
- the clamping jaw carrier 8b is rotatably connected to the screw spindle 32b via a driving device 34, so that the screw spindle 32b can be rotated without the clamping jaw carrier 8b also rotating.
- FIG. 12 shows an example of a clamping jaw 11 made of plastic, which is provided with a one-piece molded-on plastic clip 22. This fits into a groove of the bearing pin 21 and thus prevents axial displacement of the clamping jaw 11 on the bearing pin 21.
- FIG. 13 shows a clamping jaw 11 with a crowned region 35 of the bore 18.
- the bearing pin 20 can thereby be simply cylindrical.
- Such a clamping jaw 11 can be very easily brought into this shape in series production by means of suitable primary shaping or forming processes. Rework is not necessary.
- the bearing pin 20 can also be inexpensively manufactured as a metal part without complex machining.
- the clamping clamp 15 shows a simple embodiment of the clamping clamp 1, the counter bearing 11a of which consists of a simple counter bearing block. This is firmly attached to the clamping jaw carrier 8 arranged. In the present case, it is welded to the jaw support 8. Of course, it can also be attached via a plug or other connection.
- FIG. 16 shows a clamp that serves for clamping workpieces with a miter. It has two counter-holding devices 7a and 7b and a grip 6.
- the holding frame 5 is provided with three holding arms 5a, 5b and 5c.
- Each counter-holding device 7a and 7b and the clamping device 6 are each arranged on a holding arm 5a, 5b and 5c.
- At least the holding arms 5a and 5c with the counter-holding devices 7a and 7b are advantageously pivotable relative to one another. In this way, the contact surface 3 can be pressed against the second workpiece 4 at any miter angle.
- it is possible with the proposed clamp to press the contact surfaces of the workpieces firmly against one another.
- the holding arms can be pivoted and releasably locked via a node element 36.
- the clamping device 6 has a screw spindle 6a in the manner of a screw clamp, which can be screwed back and forth in a nut thread 6b of a holding arm 6c.
- the holding arm 6c is displaceable and can be locked at any point by tilting on the holding arm 5c of the holding frame 5.
- the embodiment according to FIG. 16 is in no way restricted to a clamping device in the manner of a screw clamp, rather any suitable clamping device can be used.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/367,301 US6189878B1 (en) | 1997-02-10 | 1998-02-09 | Clamp for workpieces |
DE59804054T DE59804054D1 (de) | 1997-02-10 | 1998-02-09 | Spannzwinge |
EP98909345A EP0958108B1 (de) | 1997-02-10 | 1998-02-09 | Spannzwinge |
AT98909345T ATE217236T1 (de) | 1997-02-10 | 1998-02-09 | Spannzwinge |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19704912A DE19704912C2 (de) | 1997-02-10 | 1997-02-10 | Spannzwinge |
DE19704912.5 | 1997-02-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1998034761A2 true WO1998034761A2 (de) | 1998-08-13 |
WO1998034761A3 WO1998034761A3 (de) | 1998-11-19 |
Family
ID=7819767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1998/000333 WO1998034761A2 (de) | 1997-02-10 | 1998-02-09 | Spannzwinge |
Country Status (6)
Country | Link |
---|---|
US (1) | US6189878B1 (de) |
EP (1) | EP0958108B1 (de) |
AT (1) | ATE217236T1 (de) |
DE (2) | DE19704912C2 (de) |
ES (1) | ES2176981T3 (de) |
WO (1) | WO1998034761A2 (de) |
Cited By (1)
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---|---|---|---|---|
TWI466759B (de) * | 2013-10-15 | 2015-01-01 |
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---|---|---|---|---|
GB0106082D0 (en) * | 2001-03-13 | 2001-05-02 | Mat & Separations Tech Int Ltd | Method and equipment for removing volatile compounds from air |
US6726232B2 (en) * | 2001-10-01 | 2004-04-27 | Honda Giken Kogyo Kabushiki Kaisha | Steering damper for saddle-type vehicle |
CA2396176A1 (fr) * | 2002-07-29 | 2004-01-29 | Daniel Girard | Dispositif pour aligner deux pieces a souder |
US6805287B2 (en) | 2002-09-12 | 2004-10-19 | American Express Travel Related Services Company, Inc. | System and method for converting a stored value card to a credit card |
US8626577B2 (en) * | 2002-09-13 | 2014-01-07 | Visa U.S.A | Network centric loyalty system |
US7121456B2 (en) * | 2002-09-13 | 2006-10-17 | Visa U.S.A. Inc. | Method and system for managing token image replacement |
US9852437B2 (en) * | 2002-09-13 | 2017-12-26 | Visa U.S.A. Inc. | Opt-in/opt-out in loyalty system |
US8015060B2 (en) * | 2002-09-13 | 2011-09-06 | Visa Usa, Inc. | Method and system for managing limited use coupon and coupon prioritization |
US20040148224A1 (en) * | 2002-09-13 | 2004-07-29 | Visa U.S.A. | Method and apparatus for electronic support and delivery of multiple lottery and sweepstake programs, in substantially off-line environments |
US7104446B2 (en) * | 2003-09-03 | 2006-09-12 | Visa U.S.A., Inc. | Method, system and portable consumer device using wildcard values |
US7051923B2 (en) * | 2003-09-12 | 2006-05-30 | Visa U.S.A., Inc. | Method and system for providing interactive cardholder rewards image replacement |
US8407083B2 (en) | 2003-09-30 | 2013-03-26 | Visa U.S.A., Inc. | Method and system for managing reward reversal after posting |
US8005763B2 (en) * | 2003-09-30 | 2011-08-23 | Visa U.S.A. Inc. | Method and system for providing a distributed adaptive rules based dynamic pricing system |
US20050071226A1 (en) * | 2003-09-30 | 2005-03-31 | Visa U.S.A. Inc. | Method and system for managing dynamic terms and conditions and user interaction |
US7653602B2 (en) * | 2003-11-06 | 2010-01-26 | Visa U.S.A. Inc. | Centralized electronic commerce card transactions |
US7992781B2 (en) | 2009-12-16 | 2011-08-09 | Visa International Service Association | Merchant alerts incorporating receipt data |
US8429048B2 (en) | 2009-12-28 | 2013-04-23 | Visa International Service Association | System and method for processing payment transaction receipts |
CN104070480B (zh) * | 2013-03-15 | 2018-06-22 | 创科电动工具科技有限公司 | 夹紧和扩张工具 |
US9545704B2 (en) | 2014-06-06 | 2017-01-17 | Glenn Guillot | Through cutting mill steady rest |
CN108714803A (zh) * | 2018-06-26 | 2018-10-30 | 安徽机电职业技术学院 | 液压夹紧的专用铣燕尾槽夹具 |
CN112295953B (zh) * | 2020-10-14 | 2022-11-22 | 合肥泰禾智能科技集团股份有限公司 | 一种三分光路的红外分选机 |
IT202100031073A1 (it) * | 2021-12-10 | 2023-06-10 | Ritmo Spa | Morsa, particolarmente per apparecchiature per la saldatura di tubazioni |
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NL7611816A (nl) * | 1976-10-25 | 1978-04-27 | Interproduct Bv | Klem. |
FR2486845A1 (fr) * | 1980-07-15 | 1982-01-22 | Seloron Jacques | Appareil pour le positionnement angulaire de profiles divers en vue de leur assemblage par soudure notamment |
DE8800461U1 (de) * | 1987-12-23 | 1988-03-10 | Zimmermann, Gabriel, Nueziders, At | |
EP0267982A1 (de) * | 1986-11-18 | 1988-05-25 | Wolfgang Baumann | Schraubzwinge |
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FR1343281A (fr) * | 1963-01-03 | 1963-11-15 | Presse pour assemblages angulaires | |
US3603580A (en) | 1969-06-25 | 1971-09-07 | Harold Van Gelder | Clamp having gripping means |
US4157819A (en) | 1977-01-27 | 1979-06-12 | Meyer Richard W | Adjustable work piece clamping system |
US4767110A (en) * | 1983-12-22 | 1988-08-30 | Tai Her Yang | Servo-clamping device |
GB2164877B (en) | 1984-09-07 | 1988-03-02 | William James Lowe | Work gripping device |
DE4139260A1 (de) * | 1991-11-29 | 1993-06-03 | Bessey & Sohn | Spanneinrichtung |
US5556085A (en) * | 1995-07-21 | 1996-09-17 | Cyr; Adelard N. | Work holder for eyeglasses |
-
1997
- 1997-02-10 DE DE19704912A patent/DE19704912C2/de not_active Expired - Fee Related
-
1998
- 1998-02-09 EP EP98909345A patent/EP0958108B1/de not_active Expired - Lifetime
- 1998-02-09 ES ES98909345T patent/ES2176981T3/es not_active Expired - Lifetime
- 1998-02-09 AT AT98909345T patent/ATE217236T1/de not_active IP Right Cessation
- 1998-02-09 US US09/367,301 patent/US6189878B1/en not_active Expired - Fee Related
- 1998-02-09 DE DE59804054T patent/DE59804054D1/de not_active Expired - Fee Related
- 1998-02-09 WO PCT/DE1998/000333 patent/WO1998034761A2/de active IP Right Grant
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Publication number | Priority date | Publication date | Assignee | Title |
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DE2117678A1 (de) * | 1971-04-10 | 1972-10-19 | Fogg, Richard Trevor, Leicester (Großbritannien) | Vorrichtung zum Zusammenfügen von zwei aneinanderstoßenden Rahmenteilen für Bilderrahmen od. dgl |
NL7611816A (nl) * | 1976-10-25 | 1978-04-27 | Interproduct Bv | Klem. |
FR2486845A1 (fr) * | 1980-07-15 | 1982-01-22 | Seloron Jacques | Appareil pour le positionnement angulaire de profiles divers en vue de leur assemblage par soudure notamment |
EP0267982A1 (de) * | 1986-11-18 | 1988-05-25 | Wolfgang Baumann | Schraubzwinge |
DE8800461U1 (de) * | 1987-12-23 | 1988-03-10 | Zimmermann, Gabriel, Nueziders, At | |
DE8807182U1 (de) * | 1988-06-01 | 1988-08-18 | Bruene, Kurt, 3501 Guxhagen, De | |
WO1991012114A1 (en) * | 1990-02-09 | 1991-08-22 | Wilfried Lichtenberg | Clamp with pivoting and sliding jaws |
DE19541544A1 (de) * | 1995-11-08 | 1997-05-15 | Thomas Schmelich | Spannwerkzeug |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI466759B (de) * | 2013-10-15 | 2015-01-01 | ||
US9216498B2 (en) | 2013-10-15 | 2015-12-22 | Pi-Liang Wu | Tube clamp detaching tool |
Also Published As
Publication number | Publication date |
---|---|
ES2176981T3 (es) | 2002-12-01 |
DE59804054D1 (de) | 2002-06-13 |
DE19704912A1 (de) | 1998-08-20 |
ATE217236T1 (de) | 2002-05-15 |
EP0958108A2 (de) | 1999-11-24 |
WO1998034761A3 (de) | 1998-11-19 |
US6189878B1 (en) | 2001-02-20 |
DE19704912C2 (de) | 1999-03-18 |
EP0958108B1 (de) | 2002-05-08 |
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