EP0781630B1 - Spannvorrichtung - Google Patents
Spannvorrichtung Download PDFInfo
- Publication number
- EP0781630B1 EP0781630B1 EP96112841A EP96112841A EP0781630B1 EP 0781630 B1 EP0781630 B1 EP 0781630B1 EP 96112841 A EP96112841 A EP 96112841A EP 96112841 A EP96112841 A EP 96112841A EP 0781630 B1 EP0781630 B1 EP 0781630B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- clamping
- arm
- fixture according
- clamping fixture
- swivelling
- 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.)
- Expired - Lifetime
Links
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- 239000004743 Polypropylene Substances 0.000 description 1
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- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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Images
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
- 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
- B25B5/061—Arrangements for positively actuating jaws with fluid drive
-
- 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
- B25B5/061—Arrangements for positively actuating jaws with fluid drive
- B25B5/064—Arrangements for positively actuating jaws with fluid drive with clamping means pivoting around an axis perpendicular to the pressing direction
Definitions
- the invention relates to a clamping device, in particular for releasable clamping of objects against a base, with a Base, on which in a Tension arm projecting to the front is pivotally arranged is and in the over a second swivel range in the Use position protruding upwards, in crossover position on the Actuator arm, which grips past, is pivotally arranged is, between the tension arm and one above this arranged section of the actuating arm extends a guide arm, the over a third swivel range with the tension arm and pivotally connected to the actuating arm via a thru axle is.
- a tensioning device of this type comes from the German utility model DE 78 38 562 U1. There are all swivel areas defined by thru axles consisting of separate axle bolts, over which the individual arms at the base as well as with each other are pivotally mounted.
- a disadvantage of the known tensioning device is the large number separate components that require separate production and then assembled in complex work have to.
- the base, the three arms and the three swivel areas are integral parts of one are one-piece molded plastic body, the three Swivel ranges of bending sections in the form of band-like flexible bending Material areas of the plastic body formed are, whose bending flexibility is sufficiently large to the Clamping arm and the actuating arm from a immediately after the Casting present uncrossed starting position in the crossing position and fixed by the thru axle to pivot.
- the clamping device instead of one A large number of individual components, preferably in one piece plastic body that can be produced by injection molding, in which the three swiveling ranges of one-piece flexurally elastic Material areas of the plastic body are formed.
- the shape is chosen to enable casting production, that the tension arm and the actuating arm immediately after the casting production an uncrossed, so not overlapping Starting position relative to each other, the casting technology is easy to manufacture.
- To the jig in The arms are then put back to the state of use from the starting position to the intersecting position of use pivoted over the thru axle in the connection area between the actuating arm and the guide arm is fixed.
- there are the bending sections due to their band-like design able to both set up the use position necessary as well as the pivoting mobility required in operation to ensure.
- the actuating arm is expediently connected to the associated one Bending section divided into two spaced arm elements, grips between the tension arm so that it is on reach past this on both sides.
- a particularly advantageous embodiment provides that on the actuating arm a locking device pivotable together with this is provided in a clamping position of the clamping device assumes a locking position in which it is a on the tensioning arm provided overlaps and the Secures arm against swiveling up. It lies in the clamping position in the case of a tensioned object, a locking connection is expedient between the locking device and the stop device that prevents automatic loosening, by swiveling the actuating arm back without any problems can be canceled.
- a protruding flexible safety arm protruding in one piece which is part of the one-piece plastic body forms and has a locking tab that for releasable fixation of an open position of the tensioning device an assigned safety section on the guide arm and / or actuating arm can reach behind, then expediently there is a releasable locking connection.
- a manual operating lever on the operating arm provided, which is preferably detachably attached.
- the clamping device To enable the clamping device to be driven mechanically, is conveniently located in the rear area of the Basis also one belonging to the one-piece plastic body pivotable retaining tab on which a drive device can be determined, the movable driven drive member especially with the mediation of the thru axle on the actuating arm attacks.
- the drive device can be more convenient Design partially in one piece with the retaining tab be connected. For example, in the case of a working cylinder the housing of the working cylinder in one piece on the Molded bracket and thus part of the one-piece Be plastic body.
- the manual operating lever and the drive device can be provided at the same time to selectively actuate enable.
- the tensioning device 1 is ready for operation Condition attached to a carrier 2 and allows one any object 3, regularly a workpiece, against a for example to stretch the support 4 formed by the carrier 2. This is done, for example, for the purpose of the object 3 releasably to fix during necessary welding work.
- the clamping device can therefore be advantageous in the manufacturing and assembly technology can be used.
- the clamping device 1 has a base-like base 5 with Fastening holes 6 for screwing onto the carrier 2.
- an actuating arm 15 is pivotally arranged, wherein the level of the pivoting movement with that of the clamping arm 8 coincides or is aligned parallel to this.
- the operating arm protrudes from FIGS. 2 and 3 15 starting from the base 5 upwards, he in the clamping position according to FIG. 2 essentially vertically is aligned and in the open position according to FIG tilts to the rear.
- the tension arm 8 and the actuating arm 15 take relative to each other a crossover position.
- the actuating arm 15 engages past the tension arm 8.
- the operating arm 15 following the second swivel range 14 in two laterally spaced and parallel arm elements 16, 16 'divided, which define a space 19, which is penetrated by the tension arm 8 from behind.
- connection between the guide arm 18 and the tension arm 8 takes place with the intermediation of a third pivoting range 22 one between the first pivot area 12 and the spaced to this arranged front clamping section 23 Junction 24.
- the guide arm 18 projects in the clamping position shown in FIG. 2 expediently essentially vertically upwards, wherein it is at least approximately parallel to the actuating arm 15 can be arranged. Extends in favor of a compact design he is in the clamping position according to Figure 2 within of the space 19 mentioned between the two arm elements 16, 16 '.
- the pivotable connection between the guide arm 18 and the Actuating arm 15 is realized by means of a thru axle 25.
- a thru axle 25 In the exemplary embodiment, it consists of a separate axle bolt 26, which by aligned bearing openings 27, 27 ' of the actuating arm 15 and the guide arm 18 inserted is.
- At least the base 5 are the Clamping arm 8, the actuating arm 15 and the guide arm 18 as well the first, second and third pivot ranges 12, 14, 22 fixed integral parts of a generally designated 32 Plastic body, which is conveniently one by injection molding technology is manufactured casting. The components mentioned are thus in a single component in the form of the plastic body 32 united.
- the swivel ranges 12, 14, 22 comparable to the film hinge technology of band-like flexible bending Material areas of the plastic body 32 formed, which are referred to as bending sections 33. Acts preferentially it is a polymer plastic, being polypropylene plastic has proven to be particularly useful.
- the mentioned Arms 8, 15, 18 are elongated and proportionate thin bending sections 33 preferably resilient on them load-bearing component suspended.
- the example plastic body 32 is by injection molding made of plastic.
- the underlying mold is designed so that the plastic body 32 immediately after the casting has been produced, the initial state shown in FIG. 4 occupies in which the clamping arm 8 and this upstream actuating arm 15 in an uncrossed Starting position.
- the molded on the clamping arm 8 Guide arm 18 protrudes opposite to the actuating arm 15 Direction.
- the actuating arm 15 is pivoted back according to FIGS. 5 and 6, until the bearing openings shown slightly offset in FIG. 6 27, 27 'of the actuating arm 15 and the guide arm 18 are aligned so that the thru-axle 25 can be inserted is.
- the base 5 has an upwardly projecting retaining tab 34 molded. It forms part of the one-piece Plastic body 32.
- the connection to the base 5 is made via a fourth swivel range 35, which is comparable to the aforementioned Swivel ranges due to a flexible band-like thin bending portion 33 is defined.
- This is the plate-like retaining tab 34 is able to in the same Swivel plane like the different arms a swivel movement 36 to execute the fourth swivel range 35.
- the level of Retaining tab 34 extends transversely to pivot direction 36.
- a drive device 37 is defined, which according to the example from a pneumatically operated cylinder 38 is formed. This is with its housing on the retaining tab 34 attached, with its drive member formed by a piston rod 42 passes through the retaining tab 34 and with its front end on the operating section 17 of the operating arm 15 attacks.
- the drive member 42 is expediently fixed to the axle pin 26 so as to be rotatable about its longitudinal axis. To allow a compact arrangement, the guide arm 18 in the region of the thru axle 25 via one of the latter have bridged recess 43 into which the axle pin 26 penetrated section of the drive member 42 protrudes.
- the working cylinder 38 is, for example, a double-acting Working cylinder, so that by controlled fluid application via two pressure medium lines 41 in a manner known per se an axial movement of the drive member 42 in one or other direction can be triggered, depending on whether the Clamping device should be closed or opened.
- the fourth swivel range 35 allows an automatic Alignment of the drive device 37 depending on the Swivel position of the actuating section 17th
- the housing of the drive device 37 as to carry out an integral part of the plastic body 32, by being molded directly onto the retaining tab 34.
- the retaining tab 34 can be omitted.
- the operating arm 15 is in favor of one improved leverage via the actuating section 17th also extended so that there is a handle 44 over the the actuating arm 15 pivoted back and forth with little effort can be.
- the handle 44 is conveniently on one Manual operating lever 45 is provided, which is releasable on the operating arm 15 is set.
- the manual control lever 45 has two spaced U-like profiled holding arms 46, each with a positive fit one of the arm elements 16, 16 'sit and this on the outside flank.
- In the area of the free end of the holding arms 46 can be provided inwardly projecting locking projections 47, which in complementary recesses 48 of the arm members 16, 16 'can snap into place.
- the manual control lever 45 can additionally be fixed via the axle bolt 26 when this over the Actuating arm 15 protrudes and into an aligned opening 52 of the manual operating lever 45 is immersed.
- the tensioning device can therefore be used for both manual and be trained for machine operation.
- Possibility of a mixed manual and machine operation to provide, as indicated in Figure 7.
- a drive device 37 and only a dot-dash line indicated manual operating lever 45 is provided, wherein the manual operating lever 45 on the operating arm, for example is expediently releasably fixed by plugging.
- the manual operating lever 45 on the operating arm for example is expediently releasably fixed by plugging.
- the tensioning device 1 be equipped with a safety device 53, the one Locking of the clamping arm 8 in the dash-dotted line in Figure 3 indicated maximum open position 58 allows.
- the securing device of the exemplary embodiment has via a behind the swivel arm 8 and preferably in the connection to the elevation 7 arranged securing arm 54, the top protrudes. It is an integral part of the plastic body 32 and has a material thickness that gives it a bending elasticity gives so that it is in the swivel plane of the other arms is elastically bendable back and forth. Example extends starting from base 5 upwards and simultaneously to the front so that it is inclined.
- the securing arm is preferably located in the area of its free end 54 via at least one safety projection protruding forward 55.
- the securing arm 54 divided into two arm parts 56 by a central longitudinal slot there is one on each of these arm parts 56 Securing projection 55 integrally formed.
- the actuating section shifts 17 according to arrow 28 approximately on one Circular arc backwards and at the same time down to the base 5. It arrives in the area of the actuating section 17 arranged security section 57 in a dash-dotted line in Figure 3 at 59 indicated securing position under the securing projection 55.
- the securing section 57 briefly presses the securing projection 55 back what is due to the bending elasticity of the securing arm 54 is made possible. Then the locking tab snaps 55 over the security section 57 and thus fixes the maximum open position.
- the securing part 57 could be arranged on the actuating arm 15 his. According to the example, however, it is more advantageous Design on the penetrated by the thru-axle 25 End region of the guide arm 18 and is of two cam-like Elevations 62 on the two flanking the recess 43 Batches of the guide arm 18 formed.
- the securing device 53 is designed so that the latching connection by the actuating arm 15 according to arrow 28 ' exerted driving force can be released automatically. This can be easily achieved by appropriate shaping of the Securing projection 55 and the cooperating with it Security section 57.
- the different are in favor of an optimal deformation behavior Swivel ranges made relatively thin.
- This also applies to the third pivot area 22 in the transition area between the guide arm 18 and the tension arm 8.
- the Guide arm 18 is therefore only conditionally suitable for tensioning to transmit the required clamping force to the clamping arm 8 with which acts on the object 3 to be exciting.
- This For the rest, the application of force takes place under Mediation of a bolt-like fixed to the clamping section 23 Clamping part 60 (not shown in FIGS. 3 to 6), which has a clamping head 63 on the underside rests on the object 3 to be exciting.
- the clamping part 60 is arranged adjustable on the clamping arm 8, can be different Shapes of the objects to be tensioned 3 Be taken into account.
- the Actuating arm 15 a jointly pivotable with this Locking device 64 is provided in the clamping position the tensioning device that can be seen in FIGS. 1 and 2 In the locked position, in which it is on the clamping arm 8 provided stop device 65 and thereby the The clamping arm presses down and at the same time prevents it from swinging up in the direction of the open position.
- the stop device 65 sits axially between the first Swivel range 12 and the clamping section 23 of the clamping arm 8. Because of the relatively long bending section 33 extremely flexible suspension achieved on the first swivel range 12 of the clamping arm 8, this has the tendency with which between the connection area 13 and the stop device 65 Arm section down due to leverage dive. However, this would increase the elasticity in the area of Release tensioning section 23. That is why in the mentioned An intermediate area at the bottom of the tensioning arm 8 is expedient provided by a material projection support section 66, that juts down. Your is assigned one at the base 5 especially in the front area of the bump-like elevation 7 integrally formed abutment section 67, which is expedient is also designed in the manner of a projection and after protrudes above.
- the arrangement, orientation and design of the two Games 66, 67 is chosen so that the pivoting movement of the Arm 8 is not hindered at any time.
- the support section 66 pivots above the Abutment section 67 and is therefore directly opposite.
- the support section 66 against the abutment section 67 pressed and secured by this against diving.
- the stop device 65 is on both sides of the Clamping arm 8 arranged stop projections 68 formed.
- the Locking device 64 comprises two each of the stop projections 68 associated locking projections 71, the each on the forward-facing long side of one of the two arm elements 16, 16 'are formed projecting forward.
- Your facing the stop projections 68 in the clamping position Locking surface 72 has an angled course and extends seen in the tensioned position, initially essentially horizontally forward to then over a corner area 73 sloping down towards the front.
- the corner area 73 is an edge 74 of the associated in the clamping position Support projection 68 opposite.
- the associated locking projections 71 are exemplary angled like a hook.
- stop device 65 in the swivel path of the actuating arm 15 lies, it preferably also serves as a device for Limiting its swivel path or for specifying its in the Tension position.
- Such an embodiment is shown in FIG dash-dotted lines, two in the area of the side Stiffening ribs 84 running along the edges of the tensioning arm are provided.
- the tensioning device preferably has a detection device for the detection of certain operating positions, which in Figure 3 is indicated by dash-dotted lines at 85. It serves as an example to record the clamping position and an open position. This makes it possible, depending on each position to perform further, dependent operations.
- the detection device 85 comprises two switches 86, 87, preferably fixed to the base 5, which each have a movable switching element 88, 88 '.
- the switches are connected via lines not shown an evaluation device, also not shown in detail connected in which the signals are processed, for example a visual display of the current position or the Enable control of other facilities. In particular is conceivable, depending on the detected position To actuate the drive device 37.
- switches are basically arbitrary is, as is the number of operations. Both Switches can be any sensor elements, for example also about non-contact sensors.
- the plastic body 32 within a cover accommodate the two possible in Figures 7 and 8 Embodiments 75, 76 is shown.
- the cover 75 has a substantially cuboid outer shape, only the Plastic body 32 is housed protected while the Drive device 37 protrudes from the rear.
- the cover hood 76 according to FIG. 8 has a greater overall length, so that not only the plastic body 32, but also the drive device 37 arranged thereon under the cover 76 disappears.
- FIG. 8 shows a possible embodiment a suitable locking connection device 81 indicated.
- the cover 76 in the front and in the rear Area, in particular at the level of base 5, recesses 82 provided in the plastic body 32 and here in particular provided on the base 5 resilient locking projections 83 can intervene, or vice versa.
- Figure 8 also does clearly that the base 5 beyond the retaining tab 34 after can be extended at the rear (plate-like extension section 5 '), in particular around the rear locking projections 83 to be able to attach better.
- the base 5 can do the rest overall be plate-like.
- the recess 77 can according to FIG. 7 continue into the ceiling wall 78 of the covering hood 75, so that for the manual operating lever 45 a passage to the outside is possible. It would also be conceivable for the crackdown and the pivotability of the manual control lever 45 in the ceiling wall 78 to provide a separate longitudinal slot 77 'like this is indicated by dash-dotted lines in FIG.
- stop projections 68 is not a hindrance are when the plastic body 32 by pivoting the Clamping arm 8 and the actuating arm 15 from the in FIG. 4th shown initial state brought into the use state the length of the actuating arm 15 and the attachment points the stop projections 68 on the clamping arm 8 in such a way matched that the actuating arm 15 at sufficient swing-back tension arm 8 under the stop projections 68 pivot back into the position shown in Figure 5 leaves.
- the extreme mobility guarantees the first swivel range 12 swivels back without any problems of the clamping arm 8 to a position in which the distance the stop projections 68 from the second swivel range 14 is equal to or greater than the length of the actuating arm 15, so that it can be swiveled underneath.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
- Physical Vapour Deposition (AREA)
- Sampling And Sample Adjustment (AREA)
Description
- Figur 1
- eine erste Bauform der erfindungsgemäßen Spannvorrichtung in perspektivischer Darstellung,
- Figur 2
- die Spannvorrichtung aus Figur 1 in der dort eingenommenen Spannstellung in Seitenansicht,
- Figur 3
- die Spannvorrichtung aus Figuren 1 und 2 in einer möglichen Offenstellung,
- Figur 4
- den einstückigen Kunststoffkörper der Spannvorrichtung im Ausgangszustand unmittelbar nach der Gießherstellung,
- Figuren 5 und 6
- Zwischenstellungen des Kunststoffkörpers bei der Überführung in die Gebrauchsstellung durch Verschwenken des Betätigungsarmes und des Spannarmes,
- Figuren 7 und 8
- verschiedene Ausführungsformen einer Abdeckhaube für die Spannvorrichtung, und
- Figur 9
- eine ausschließlich für den Handbetrieb vorgesehene Ausführung der Spannvorrichtung.
Claims (19)
- Spannvorrichtung, insbesondere zum lösbaren Spannen von Gegenständen (3) gegen eine Unterlage (4), mit einer Basis (5), an der über einen ersten Schwenkbereich (12) ein in einer Gebrauchslage nach vorne ragender Spannarm (8) schwenkbar angeordnet ist und an der über einen zweiten Schwenkbereich (14) ein in der Gebrauchslage nach oben ragender, in Überkreuzstellung an dem Spannarm (8) vorbeigreifender Betätigungsarm (15) schwenkbar angeordnet ist, wobei sich zwischen dem Spannarm (8) und einem oberhalb diesem angeordneten Abschnitt des Betätigungsarmes (15) ein Führungsarm (18) erstreckt, der über einen dritten Schwenkbereich (22) mit dem Spannarm (8) und über eine Steckachse (25) mit dem Betätigungsarm (15) schwenkbar verbunden ist, dadurch gekennzeichnet, daß die Basis (5), die drei Arme (8, 15, 18) und die drei Schwenkbereiche (12, 14, 22) feste Bestandteile eines einstückigen gegossenen Kunststoffkörpers (32) sind, wobei die drei Schwenkbereiche (12, 14, 22) von Biegeabschnitten (33) in Form bandähnlicher biegeflexibler Materialbereiche des Kunststoffkörpers (32) gebildet sind, deren Biegeflexibilität ausreichend groß ist, um den Spannarm (8) und den Betätigungsarm (15) aus einer unmittelbar nach der Gießherstellung vorliegenden ungekreuzten Ausgangslage in die sich überkreuzende und durch die Steckachse (25) fixierte Gebrauchslage zu verschwenken.
- Spannvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Spannarm (8) und der Betätigungsarm (15) in der Ausgangslage eine ausgehend von der Basis (5) schräg nach vorne und gleichzeitig nach oben gerichtete Position einnehmen.
- Spannvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Betätigungsarm (15) im Anschluß an den zugeordneten Biegeabschnitt (33) in zwei beabstandete Armelemente (16, 16') unterteilt ist, zwischen denen der Spannarm (8) hindurchgreift.
- Spannvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß an dem Betätigungsarm (15) eine gemeinsame mit diesem verschwenkbare Verriegelungseinrichtung (64) vorgesehen ist, die in einer Spannstellung der Spannvorrichtung eine Verriegelungsstellung einnimmt, in der sie eine am Spannarm (8) vorgesehene Anschlageinrichtung (65) übergreift und den Spannarm (8) am Hochschwenken aus der Spannstellung hindert.
- Spannvorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß in der Spannstellung bei gespanntem Gegenstand (3) eine Rastverbindung zwischen der Verriegelungseinrichtung (64) und der Anschlageinrichtung (65) vorliegt, die durch Zurückschwenken des Betätigungsarmes (15) lösbar ist.
- Spannvorrichtung nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß die Verriegelungseinrichtung (64) von wenigstens einem, insbesondere hakenähnlich nach vorne ragenden Verriegelungsvorsprung (71) gebildet ist.
- Spannvorrichtung nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, daß die Anschlageinrichtung (65) den Schwenkweg des Betätigungsarmes (15) begrenzt und dessen in der Spannstellung eingenommene Lage vorgibt.
- Spannvorrichtung nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, daß an dem Spannarm (8) zwischen dem ersten Schwenkbereich (12) und der beabstandet zu diesem angeordneten Anschlageinrichtung (65) eine Abstützpartie (66) vorgesehen ist, die in der Spannstellung der Spannvorrichtung in eine Abstützstellung verschwenkt ist, in der sie sich an einer an der Basis (5) vorgesehenen und von ihr insbesondere übergriffenen Widerlagerpartie (67) abstützen kann.
- Spannvorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß die Abstützpartie (66) und die Widerlagerpartie (67) von einstückig angeformten Materialvorsprüngen des Kunststoffkörpers (62) gebildet sind.
- Spannvorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß der zweite Schwenkbereich (14) im Bereich der Vorderseite der Basis (5) angeordnet ist und tiefer liegt als der erste Schwenkbereich (12), der den Schwenkarm (8) mit der oberen Partie einer höckerartigen Erhebung (7) der Basis (5) verbindet.
- Spannvorrichtung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß an der Basis (5) ein hinter dem Schwenkarm (8) nach oben ragender biegeflexibler Sicherungsarm (54) einstückig angeformt ist, der über wenigstens einen Sicherungsvorsprung (55) verfügt, der in einer Offenstellung der Spannvorrichtung eine Sicherungspartie (57) am Führungsarm (18) und/oder am Betätigungsarm (15) formschlüssig übergreift und dadurch die Offenstellung lösbar fixiert.
- Spannvorrichtung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß die Steckachse (25) von einem separaten, durch beide zu verbindenden Arme (15, 18) hindurchgesteckten Achsbolzen (26) gebildet ist.
- Spannvorrichtung nach einem der Ansprüche 1 bis 12, gekennzeichnet durch einen an dem Betätigungsarm (15) vorgesehenen, insbesondere lösbar daran festgelegten Handbetätigungshebel (45), der zweckmäßigerweise angesteckt ist.
- Spannvorrichtung nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß der einstückige Kunststoffkörper (32) eine hinter dem Betätigungsarm (15) angeordnete Haltelasche (34) aufweist, die über einen von einem weiteren Biegeabschnitt (33) gebildeten vierten Schwenkbereich (45) schwenkbar an der Basis (5) angeordnet ist und zur Halterung einer zum Beispiel von einem fluidbetätigten Arbeitszylinder (38) gebildeten Antriebseinrichtung (37) dient, deren bewegliches Antriebsglied (42) insbesondere im Verbindungsbereich mit dem Führungsarm (18) an dem Betätigungsarm (15) angreift.
- Spannvorrichtung nach einem der Ansprüche 1 bis 14, gekennzeichnet durch eine wenigstens den Kunststoffkörper (32) umschließende Abdeckhaube (75, 76), die im Bereich der Vorderseite eine einen Durchgriff des Spannarmes (8) ermöglichende Aussparung (77) aufweist.
- Spannvorrichtung nach Anspruch 15, dadurch gekennzeichnet, daß die Abdeckhaube (75, 76) sowohl den Kunststoffkörper (32) als auch eine daran festgelegte Antriebseinrichtung (37) umschließt.
- Spannvorrichtung nach Anspruch 15 oder 16, dadurch gekennzeichnet, daß die Abdeckhaube (75, 76) mittels einer Rastverbindungseinrichtung (81) lösbar an dem Kunststoffkörper (32) festgelegt ist.
- Spannvorrichtung nach einem der Ansprüche 1 bis 17, dadurch gekennzeichnet, daß an dem Kunststoffkörper (32) eine Erfassungseinrichtung (85) zur Erfassung bestimmter Betriebsstellungen vorgesehen ist.
- Spannvorrichtung nach Anspruch 18, dadurch gekennzeichnet, daß die Erfassungseinrichtung (85) zwei Schalter (86, 87) enthält, die bei einer Spannstellung und einer Offenstellung der Spannvorrichtung ansprechen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29520730U | 1995-12-30 | ||
DE29520730U DE29520730U1 (de) | 1995-12-30 | 1995-12-30 | Spannvorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0781630A1 EP0781630A1 (de) | 1997-07-02 |
EP0781630B1 true EP0781630B1 (de) | 2001-04-11 |
Family
ID=8017371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96112841A Expired - Lifetime EP0781630B1 (de) | 1995-12-30 | 1996-08-09 | Spannvorrichtung |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0781630B1 (de) |
DE (2) | DE29520730U1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19801057C1 (de) * | 1998-01-14 | 1999-03-04 | Andreas Maier Gmbh & Co | Spannvorrichtung |
DE19917212A1 (de) * | 1999-04-16 | 2000-11-02 | Euchner Gmbh & Co | Vorrichtung zum Schalten einer Verbindung in Abhängigkeit des Zustandes einer zu überwachenden Einrichtung, insbesondere Sicherheitsschalter |
CN103899614B (zh) * | 2012-12-27 | 2016-04-20 | 北京谊安医疗系统股份有限公司 | 浮动连接定位组件 |
DE102014115432B4 (de) * | 2014-10-23 | 2019-05-09 | Andreas Maier Gmbh & Co. Kg | Spannvorrichtung mit lösbar gehaltenem Handgriff und Verfahren zum Einspannen eines Werkstücks mittels einer solchen Spannvorrichtung |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5025898Y2 (de) * | 1971-10-02 | 1975-08-02 | ||
DE7838562U1 (de) * | 1978-12-27 | 1979-04-19 | De-Sta-Co Metallerzeugnisse Gmbh, 6000 Frankfurt | Spannvorrichtung |
GB2078849A (en) * | 1980-07-01 | 1982-01-13 | Itw Ltd | Cable clamps |
US4388747A (en) * | 1981-08-10 | 1983-06-21 | Plummer Walter A | One-piece molded toggle clamp |
CH682379A5 (de) * | 1990-09-10 | 1993-09-15 | Sawatzki Engineering Harry L S | Vorrichtung zum Festklemmen eines Werkstückes. |
DE9101555U1 (de) * | 1991-02-12 | 1991-05-02 | De-Sta-Co Metallerzeugnisse Gmbh, 6000 Frankfurt | Spannvorrichtung |
DE4115912C2 (de) * | 1991-05-15 | 1994-03-24 | Mohammad Mohsen Prof Dr Saadat | Modularer Greifmechanismus für Handhabungsgeräte |
DE4240814A1 (de) * | 1992-12-04 | 1994-06-09 | Bosch Gmbh Robert | Druckmittelbetätigte Greifvorrichtung |
-
1995
- 1995-12-30 DE DE29520730U patent/DE29520730U1/de not_active Expired - Lifetime
-
1996
- 1996-08-09 DE DE59606760T patent/DE59606760D1/de not_active Expired - Fee Related
- 1996-08-09 EP EP96112841A patent/EP0781630B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE29520730U1 (de) | 1996-02-15 |
DE59606760D1 (de) | 2001-05-17 |
EP0781630A1 (de) | 1997-07-02 |
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