EP1253994A1 - Dispositif de serrage - Google Patents

Dispositif de serrage

Info

Publication number
EP1253994A1
EP1253994A1 EP00902650A EP00902650A EP1253994A1 EP 1253994 A1 EP1253994 A1 EP 1253994A1 EP 00902650 A EP00902650 A EP 00902650A EP 00902650 A EP00902650 A EP 00902650A EP 1253994 A1 EP1253994 A1 EP 1253994A1
Authority
EP
European Patent Office
Prior art keywords
clamping device
clamping
rail
contact
holding
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
EP00902650A
Other languages
German (de)
English (en)
Other versions
EP1253994B1 (fr
Inventor
Horst Klimach
Siegfried Foshag
Karl Philipp
Hans Rösch
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.)
Bessey Tool GmbH and Co KG
Original Assignee
Bessey and Sohn GmbH and Co KG
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 Bessey and Sohn GmbH and Co KG filed Critical Bessey and Sohn GmbH and Co KG
Publication of EP1253994A1 publication Critical patent/EP1253994A1/fr
Application granted granted Critical
Publication of EP1253994B1 publication Critical patent/EP1253994B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B25B5/06—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 tensioning device with a tensioning rail which is displaceable in its longitudinal direction and an actuating device which comprises a grip element through which the tensioning rail can be displaced.
  • the invention has for its object to provide a clamping device that is easy to use.
  • the contact elements seated on the clamping rail can be aligned with respect to a workpiece even with one-hand operation, without the actuating device having to be rotated or gripped.
  • an attachment element can be rotated indefinitely since no housing parts are in the way.
  • the immovability of the first contact element makes it possible, on the one hand, to provide a contact surface for clamping a workpiece (this can in principle also be done by a contact surface of the actuating device itself), the rotatability of this contact element and the setting of a certain distance being simple in terms of production technology between the first contact element and the second contact element and a rotatability can be achieved that does not change the relative orientation of the two contact elements when the tensioning rail rotates.
  • the rotatability of the first contact element can be achieved in that it is rotatable against the tensioning rail and / or in that the tensioning rail can be rotated with the first contact element.
  • the tensioning rail is guided so that it can rotate.
  • the first contact element can then be rotated relative to the tensioning rail.
  • the second contact element is then designed to be rotationally symmetrical transversely to the tensioning rail.
  • the tensioning rail is rotatably mounted on the actuating device, the first and second contact elements being rotatable with the tensioning rail.
  • the tensioning rail with the abutment elements held on it can be rotated indefinitely in order to obtain a wide range of possible uses.
  • the tensioning rail is guided displaceably by at least one bearing element. This ensures that the tensioning rail can be moved.
  • the tensioning rail is slidably guided by the bearing element.
  • a bearing element causes the tensioning rail to be non-rotatably, i.e. the tensioning rail cannot be rotated relative to the bearing element and the rotation of the tensioning rail takes place via the rotation of the bearing element. It is then advantageous if the tensioning rail has a profile which is designed such that the rotatability of the tensioning rail can be blocked with respect to a bearing element through which the tensioning rail is displaceably guided.
  • the tensioning rail has a flat profile, for example a rectangular profile.
  • a tensioning rail can be produced inexpensively and is less susceptible to damage in work which could hinder the sliding movement.
  • a bearing element rotatably and slidably guides the tensioning rail, ie, such a bearing element is designed as a rotary / sliding bearing.
  • At least one bearing element is designed as a groove bearing, which is arranged on the actuating device so that it cannot be moved and rotated by means of a groove.
  • a groove bearing can be produced in a cost-effective manner and an assembly of a device according to the invention is also possible in a simple manner, since such a groove bearing only has to be used and no further fastening means, such as screws, are necessary.
  • the first contact element is held on the housing of the actuating device so that it cannot be moved with the tensioning rail so that it cannot move.
  • the first contact element can be integrally or positively connected to the groove bearing.
  • this results in a slidable mounting of the tensioning rail and, on the other hand, a rotary mounting.
  • the first contact element is rotated with the tensioning rail and therefore its orientation with respect to the second contact element is retained even during the rotation.
  • the first contact element is immovably held on the housing of the actuating device, so that the distance between the first contact element and the second contact element changes in a structurally simple manner when the tensioning rail is displaced.
  • the tensioning device according to the invention can be operated in a simple manner if the handle element comprises a handle which is arranged pivotably on the actuating device. In particular, there may be one handle for each direction of movement of the tensioning rail or only a single handle.
  • At least one feed element is provided, which is arranged and designed such that it can be tilted against the direction of displacement of the tensioning rail in order to block the displaceability of the tensioning rail relative to the feed element, and that it is movable in the direction of displacement of the tensioning rail is.
  • a feed element is rotatably arranged in the housing of the actuating device in order to ensure the rotatability of the tensioning rail.
  • a feed element can be tilted and moved by applying force through the handle element.
  • a compression spring is arranged between a feed element and a locking element or holding element, by means of which a restoring force can be exerted on the feed element against the direction of displacement, then the feed element can be pushed back into its starting position in a simple manner, from which a further feed of the tensioning rail can be actuated.
  • the locking element is rotatably arranged on a housing of the actuating device in order to achieve a largely play-free rotation of the tensioning rail.
  • the blocking element or the holding element can advantageously be brought into a blocking position in which a displaceability of the tensioning rail is blocked in one direction.
  • This locking element ensures that the tensioning rail can only be displaced in a desired feed direction, while the displacement is locked in the opposite direction. Good clamping results can be obtained in this way, since the force acting on a workpiece, which is transmitted by the displacement of the clamping rail, only acts in one direction.
  • a high level of operating comfort is achieved if a holding element is provided, by means of which the displaceability of the tensioning rail can be blocked in one direction.
  • a holding element is assigned to a locking element, by means of which the locking element can be held in a non-locking position.
  • the blocking position Via the holding element, which can be moved, in particular, from outside the housing of the actuating device, the blocking position can be set or released in a simple manner (i.e. the non-blocking position can be set).
  • the holding element can be actuated independently of the grip element, so that in particular the one-hand operability is retained.
  • the holding element is arranged in a rotationally fixed manner on the actuating device, on the one hand not to impede the rotatability of the tensioning rail and on the other hand to fulfill its holding function.
  • the holding element can expediently be fixed in a holding position, a locking element which may be provided in the holding position being in a non-blocking position. This prevents the locking element from jamming with the tensioning rail and in this way ensures the displaceability of the tensioning rail in the desired direction. It is particularly advantageous if the holding element can be fixed in a holding position in which the holding element is oriented essentially perpendicular to the tensioning rail. In such a vertical position, the sliding movement of the tensioning rail is not hindered.
  • the holding element can be fixed in its holding position by means of a coupling pin in a constructionally and technically simple manner.
  • a contact surface for a feed element which limits the displaceability of a feed element in the opposite direction to the displacement direction of the tensioning rail, is advantageously formed in a housing of the actuating device. This ensures that the feed element is always pushed back into its starting position and can be brought into a position in which it does not hinder the displacement of the tensioning rail.
  • the actuating device is essentially mirror-symmetrical to a central plane transverse to the direction of displacement of the tensioning rail. This makes it easy to achieve that the tensioning rail can be displaced in two opposite directions and can thus be used in particular as a tensioning element and as an expansion element.
  • a displacement of the first and the second contact element towards and away from one another can be actuated via the grip element. This provides a high level of operating convenience, since both a clamping tool and an expanding tool can be actuated via one-hand operation.
  • a first feed element for displacing the tensioning rail in a first displacement direction and a second feed element for displacement in an opposite direction are advantageously provided.
  • the displacement mechanism can then be configured essentially the same, regardless of the direction of displacement, which reduces the design effort.
  • first and second feed elements can be tilted in opposite directions.
  • the tensioning rail can be displaced in particular by means of handle levers which can be pivoted in opposite directions.
  • a first handle lever of the handle element advantageously engages the first feed element and a second handle lever engages the second feed element.
  • the tensioning rail can be moved in the desired direction of displacement in a simple manner with a high level of operating comfort by an operator.
  • first and second handle levers can be pivoted in opposite directions to engage the associated feed element.
  • a handle lever is provided, through which the first feed element or the second feed element can be displaced, depending on the pivoting direction.
  • first feed element a first pressure spring, a first holding element and optionally a first locking element are assigned and the second feed element is assigned a second pressure spring, a second holding element and optionally a second locking element.
  • first and second holding elements can be coupled to one another such that when the first locking element is in a locking position, the second locking element is in a non-locking position and vice versa.
  • the tensioning rail can only be displaced in one direction while the displacement is blocked in the opposite direction. It is thereby achieved that the displacement of the clamping rail is a pure "clamping displacement” or a pure “spreading displacement” in which a force in one direction (either clamping direction or spreading direction) can be exerted on a workpiece.
  • a coupling device is advantageously provided, which can be fixed in a first position on the actuating device, in which the first locking element is fixed in a non-locking position via the assigned first holding element and the second locking element is in a locking position and can be fixed in a second position, in which the first locking element in a Is locked position and the second locking element is fixed in a non-locking position via the assigned second holding element.
  • the coupling device which can be arranged on the housing as a sliding element, for example, or can be a separate plug-in element, can then be used to switch the direction of displacement of the tensioning rail.
  • the first locking element in its locking position is tilted in the opposite direction to the second feed element when it is displaced, and accordingly the second locking element is tilted in the opposite direction to the first feed element when it is displaced.
  • Such a tilting of the locking element in the opposite direction to the assigned feed element enables the feed element itself to be displaced, since the displacement in which the tensioning rail is also displaced counteracts the tilting of the locking element and thus its locking position for the displacement in the displacement direction of the tensioning rail is canceled.
  • the tensioning rail cannot be moved in the opposite direction by this tilting, since the blocking acts in this direction.
  • the second feed element is secured against tilting in the first position of the coupling device and the first feed element is secured against tilting in the second position. This makes it easy to set and switch the direction of displacement.
  • the tensioning device according to the invention can be produced in a cost-effective manner if the housing of the actuating device is designed in this way and provided with recesses is that the movable parts are fixed with respect to the housing solely via the recesses acting as contact surfaces. There are then no screw connections or the like necessary, but the parts are held alone over the recesses, so that in particular the clamping device can be assembled quickly and easily.
  • the housing also protects the movement mechanism for displacing the tensioning rail and grease or oil to increase mobility is not removed from the moving parts during work.
  • the housing of the actuating device comprises a first housing part and a second housing part, which can be fixed together.
  • the components can then be inserted into the first housing part, whereupon the second housing part is then fixed with the first housing part.
  • the corresponding parts are then fixed in the housing.
  • the two housing parts can be fixed in a simple manner, for example via screw connections.
  • first contact element and / or the second contact element are designed as a contact bracket or as a contact washer.
  • a contact element advantageously has essentially identical contact surfaces transverse to the longitudinal direction of the tensioning rail. As a result, such a contact element can be used both for clamping a workpiece on one contact surface and for spreading on the other contact surface.
  • the first contact element and the second contact element has essentially the same contact surfaces, which increases the ease of use since, in particular, simple use with regard to clamping and spreading is made possible.
  • the first contact element and / or the second contact element can be rotated with respect to the tensioning rail, for example in that such a contact element can be rotated in a rotary bearing which is non-rotatably seated on the tensioning rail.
  • the contact elements can be rotated with the tensioning rail, their relative orientation being retained, and on the other hand, the relative orientation can be set.
  • a coupling element is provided, by means of which the first contact element and the second contact element can be coupled to one another such that they are rotated with the tensioning rail when the latter is rotated. It is then sufficient to fix a contact element to the tensioning rail in a rotationally fixed manner. The other contact element is taken over the coupling element when the tensioning rail rotates.
  • a rotatability of a contact element relative to the tensioning rail can be achieved in a simple manner in that the contact element is seated on the tensioning rail by means of a pivot bearing.
  • Figure 1 a side sectional view of a first
  • FIG. 2 shows a side view of contact elements of a tensioning device according to the invention
  • FIG. 3 a side sectional view of an actuating device according to FIG. 1, which shows a switching device for switching the direction of displacement of a tensioning rail;
  • Figure 4 is a sectional view taken along the line X-X in Figure 3;
  • Figure 5 is a view of a second embodiment of a tensioning device according to the invention, in which a housing of an actuating device is shown open;
  • Figure 6 is a sectional view of a third embodiment of a tensioning device according to the invention.
  • Figure 7 is a partial sectional view taken along the line Y-Y in Figure 6;
  • Figure 8 is a partial view of an alternative embodiment of a contact element
  • Figure 9 a side view of the contact element according to Figure 8 and Figure 10 is a partial front sectional view of a fourth embodiment of a tensioning device according to the invention.
  • a first exemplary embodiment of a tensioning device according to the invention which is designated as a whole by 10 in FIG. 1, comprises an actuating device 12 and a tensioning rail 14 which is displaceably guided on the actuating device 12 and whose displacement can be actuated via the actuating device 12.
  • the actuating device 12 has a housing 16 and in particular a closed housing in which the tensioning rail 14 is guided so as to be slidable.
  • the tensioning rail 14 has a flat profile and, as shown in FIG. 4, has an essentially rectangular cross section, in particular with lateral indentations.
  • a first bearing element 18 in the form of a bearing disc is arranged in the housing 16 of the actuating device 12, which has a centrally arranged recess 20 in which the tensioning rail 14 is guided so as to be slidable (FIG. 4).
  • the recess 20 is designed such that the tensioning rail 14 cannot be rotated against the first bearing element 18.
  • the first bearing element 18 is rotatably arranged in the housing 16, a block element 24 of the housing 16 with an end face 26 providing an in particular annular contact surface for the first bearing element 18, which is oriented perpendicular to a longitudinal direction of the tensioning rail 14.
  • the block element 24 sits symmetrically and in particular mirror-symmetrically with respect to a central plane 30 of the actuating device 12.
  • An end face 32 of the block element 24 opposite the end face 26 forms a contact surface for a second rotatable bearing element 34, which has the same structure as that first bearing element 18 and through which the tensioning rail 14 is also guided.
  • a first groove bearing 36 is furthermore arranged on a first passage 38 of the tensioning rail 14 through the housing 16 and a second groove bearing 40 on a second passage 42 of the housing 16, which is opposite the first passage 38.
  • a groove bearing 36, 40 is formed by a disk-shaped element which is provided with a groove-shaped recess 44 on its cylindrical surface.
  • This groove-shaped recess 44 has a width which essentially corresponds to the housing wall in the region of an associated passage 38, 42.
  • the groove bearing 36 is rotatably mounted in the first passage 38 and the second groove bearing 40 in the second passage 42 with a corresponding cylindrical shape of the associated passage 38, 42.
  • the groove bearings 36 and 40 each have a recess which is configured essentially the same as the recess 20 (FIG. 4) in the first bearing element 18 and in alignment with it (and to the corresponding recess of the second bearing element 34) and in which the tensioning rail 14 is slidably guided.
  • the first contact element 46 is designed in particular as a contact bracket which is oriented transversely to the tensioning rail 14. As a result, this first contact bracket 46 with the tensioning rail 14 is rotatably mounted on the actuating device 12 via its rotatable mounting by means of the first bearing element 18, the second bearing element 34 and the groove bearings 36 and 40, but is not displaceable against the latter.
  • a pivot bearing is seated
  • the first contact bracket 46 is rotatably held in this rotary bearing 47, and its rotatability in the rotary bearing 47 can be fixed, for example, by frictional engagement or positive locking. As a result, the first contact bracket 46 as a whole can be rotated with the rotation of the tensioning rail and independently of it relative to the tensioning rail about the pivot bearing 47.
  • a second contact element 48 is facing the first contact bracket 46 on the tensioning rail 14 and in particular at one end thereof, for example by positive locking.
  • the distance between the first contact bracket 46 and the second contact element 48 can thus be changed by displacing the tensioning rail 14.
  • the two contact elements 46 and 48 are aligned with one another in a defined orientation and in particular essentially parallel or in slightly inclined towards each other.
  • the clamping action on a workpiece between the contact elements can be increased by an inclination of a contact element and in particular the first contact element 46.
  • the second contact element 48 is designed as a contact bracket (FIG. 2).
  • the second contact element is designed as a particularly circular contact disc 49 (FIGS. 8, 9), which is held centrally on the tensioning rail 14.
  • an annular contact part 51 can be formed on the contact disc 49 facing the first contact element in order to provide a contact surface which corresponds to that of the first contact element, in particular with regard to the dimensions in the radial direction.
  • the contact part 51 and a contact surface of the first contact element are preferably aligned with one another.
  • a first locking element 52 is optionally arranged opposite this first groove bearing 36, which is rotatable relative to the housing 16 and is essentially the same as the first bearing element 18.
  • the first locking element 52 is assigned a first holding element 54, on which the first locking element 52 can be placed.
  • This first holding element 54 has a through opening 56 for the tensioning rail 14, in which the latter can be rotated. It extends transversely to the tensioning rail 14 through the housing 16 and emerges from it at an opening 58, so that the first holding element 54 can be moved from outside the housing 16.
  • the first holding element 54 has a holding part 60, which is, for example, flat, a guide part 62, which is arranged at an angle, for example, on the order of 20 ° to the first locking element 52, and a handle part 64, which is essentially parallel to the Holding part 60 and protrudes from the housing 16 via the opening 58 so that the first holding element 54 can be moved (in particular in the direction of the first bearing element 18).
  • the function of the guide part 62 is explained in more detail below.
  • the first holding element 54 can be brought into a position 66 (indicated by dashed lines in FIG. 1) in which the holding part 60 is aligned perpendicular to the tensioning rail 14 and can be fixed in this position.
  • the first locking element 52 is also aligned perpendicularly to the tensioning rail 14, and the tensioning rail 14 is thereby not jammed by the first locking element 52, i. H. their mobility is not hindered.
  • a compression spring 68 is arranged between the first bearing element 18 and the first blocking element 52, which exerts a force on the first blocking element 52 in the direction away from the first bearing element 18 and presses the first blocking element 52 against the holding element 54 and in particular from the first bearing element 18 tilted away when the first holding element 54 is not in its vertical position 66.
  • the compression spring 68 is in particular able to tilt the locking element 52 and the first holding element 54 to such an extent that the locking element 52 blocks the displacement of the tensioning rail 14 in the direction A.
  • a second locking element 70, a second holding element 72 and a second compression spring 73 between the second locking element 70 and the second bearing element 34 are assigned to the second bearing element 34.
  • the second holding element 72 is of the same design as the first holding element 54 and is arranged in the same way (i.e. not mirror-symmetrical with respect to the central plane 30).
  • a guide part 74 of the second holding element 72 is therefore arranged at a small angle to a holding part 76 away from the second bearing element 34.
  • the second holding element 72 and thus also the second locking element 70 can be tilted in a direction away from the second bearing element 34 in order to correspondingly clamp the tensioning rail 14.
  • the first locking element 52 and the second locking element 70 can thus be tilted in opposite directions.
  • a handle element 77 is arranged on the housing, each having a first handle lever 78 which is pivotably arranged and which acts on the first bearing element 18, and a second handle lever 80 which acts on the second bearing element 34.
  • the first handle lever can be pivoted about a pivot axis 82 in the direction of the first handle lever 78, ie in a direction away from the first bearing element 18.
  • the second handle lever 80 can be pivoted in the direction of the first handle lever 78, ie away from the second bearing element 34.
  • the two handle levers 78 and 80 have the common pivot axis 82.
  • the first handle lever 78 and the second handle lever 80 are each designed as two-armed levers, each with an eccentric element 84 and 86, which acts on the associated first bearing element 18 and the second bearing element 34 when the associated handle lever is pivoted, in order to close it against the tensioning rail 14 tilt and move in a direction of displacement of the tensioning rail, so as to effect the displacement itself of the tensioning rail 14.
  • the bearing elements 18 and 34 therefore act as feed elements for the tensioning rail 14, this feed taking place against the spring force of the compression springs 68 and 73, respectively.
  • the grip element 77 is designed so that it can be placed in one hand of a user and can be operated with one hand; that is, the clamping device is a one-handed clamping device.
  • the clamping device is a one-handed clamping device.
  • one handle lever is fixed and the other handle lever is pivotable.
  • the second handle lever 80 is stationary and the first handle lever 78 can be pivoted toward the second handle lever 80.
  • the first stands for displacement in the opposite direction B, in which the two contact elements 46 and 48 can be moved apart in order to use the tensioning device for spreading Handle lever 78 fixed and the second handle lever 80 can be pivoted in the direction of the first handle 78 about the pivot axis 82.
  • a coupling device is provided as a switching device for the direction of displacement, which is designated as a whole in FIGS. 1, 3 and 6 with 88.
  • the coupling device 88 comprises a sliding element 90, which as a whole is arranged on the housing 16 of the actuating device 12 so as to be displaceable transversely to the longitudinal direction of the tensioning rail 14.
  • parallel guide grooves 92a, 92b are formed on the housing, which are oriented perpendicular to the directions of displacement A and B and in each of which a guide pin 94a, 94b of the sliding element 90 engages.
  • retaining lugs 96a and 96b are arranged on the sliding element 90, each serving to position the second retaining element 72 and the first retaining element 54. They are arranged so that only one of the two holding elements 54 and 72 lies in a vertical position 66, ie either the first holding element 54 is in such a position and the second holding element 72 is tilted (for a displacement of the tensioning rail 14 in the direction B) or the second holding element 72 is tilted and the first holding element 54 is in its vertical position 66 (for a displacement in the direction A).
  • the two retaining lugs 96a and 96b are at substantially the same distance from one another Clamping rail 14 on. They engage the respective guide part 62, 74 of the first holding element 54 or the second holding element 72, which serves to transfer the holding lugs 96a, 96b between a fixing position for the holding element 72 or 54 and a non-holding position.
  • the sliding element 90 comprises retaining lugs 98a and 98b, which each serve as a tilt protection for the first bearing element 18 (retaining lug 98b) or the second bearing element 34 (retaining lug 98a).
  • the retaining lugs 98a and 98b are arranged and designed such that either the first bearing element 18 is secured against tilting and displacement (when the tensioning rail is displaced in direction B) or the second bearing element 34 is protected against tilting and displacement (during the displacement in direction A).
  • FIG. 1 a solid line is shown, which only allows a shift in direction B, and a broken line, which only allows a shift in direction A, is shown in solid lines.
  • the two retaining lugs 98a and 98b are connected via a web element 100 (FIG. 3), which is pivotably articulated between the eccentric elements 84 and 86 with an axis of rotation 102 parallel to the pivot axis 82 on the housing 16 and is likewise pivotably articulated on the first retaining lug 98a.
  • the holding lug 98b also moves transversely to the tensioning rail 14 via the rotated web element 100, in such a way that when the sliding element 90 moves into a holding position with respect to the second bearing element 34, the holding lug 98a is moved into a holding position for the second bearing element 34 and the holding lug 98b from a Stop position for the first bearing element 18; with a corresponding reversed displacement of the sliding element 90, the conditions are reversed.
  • the corresponding holding element (if a displacement of the tensioning rail 14 is to be permitted in direction B, the second holding element 72, if it is to be shifted in direction A, the first holding element 54) is simultaneously shifted into its vertical position ,
  • first contact element 48 and the second contact element 46 are of essentially the same design.
  • each contact element has an essentially identical first contact surface 106, which is arranged facing the other contact element, and a second contact surface 108, which is arranged facing away from the other contact element (FIG. 2).
  • the tensioning device according to the invention can thus advantageously be used for tensioning (clamping) and for spreading.
  • the two contact elements 48 and 46 have an aligned, flat lower surface 110 on which the contact elements 48 and 46 can be placed.
  • a user sets the direction of displacement of the tensioning rail 14 via the sliding element 90 of the switching device.
  • the tensioning rail 14 In its lower position (shown in solid lines in FIGS. 1, 3 and 4), the tensioning rail 14 can be displaced in the direction B, i. H. the two contact elements 48 and 46 can be moved away from each other. If, starting from this position, the sliding element 90 is shifted upwards, the direction of displacement can be switched to the opposite direction A, in which the two contact elements 48 and 46 can be moved towards one another.
  • the tilting is also released, which enables the bearing element 34 to be pushed back. Because of the locked position of the first locking element 52, it is ensured that when the second bearing element 34 is pushed back, the tensioning rail 14 is not moved back in the direction A. Since this first locking element 52 is tilted in the direction A, a displacement in the direction B, as is brought about by the second bearing element 34, counteracts this tilting and thus does not hinder the displacement in the direction B.
  • the holding lug 96b By displacing the sliding element 90, the holding lug 96b is pushed along the guide part 62 of the first holding element 54 such that it is moved into the vertical position 66 and thus also the first locking element 52. Furthermore, the holding lug 96a, which was previously the second holding element 76 held in a vertical position, pushed out, so that due to the action of the spring force of the second compression spring 73, the second locking element 70 and the second holding element 76 tilt. At the same time, the retaining lug 98a is shifted towards the second bearing element 34, so that it can no longer be tilted and the pivotability of the second handle 80 is blocked.
  • the retaining lug 98b is pivoted away from its locked position on the first bearing element 18 and this is released.
  • the first handle lever 78 can then be pivoted against the second handle lever 80, thereby tilting the first bearing element 18 and, due to its design as a feed element, displacing the tensioning rail 14 in the direction A in order to move the two contact elements 46 and 48 towards one another.
  • the shift in the direction B is blocked due to the tilting of the second locking element 70 in the direction B.
  • the tensioning rail 14 is unlimited, regardless of the position of the sliding element 90 with respect to the housing 16 of the actuating device 12. H. rotatable through any angle. This maintains an adjusted alignment of the two contact elements 46 and 48 relative to one another even when the tensioning rail 14 rotates.
  • the feed / push-back mechanism for displacing the tensioning rail is basically constructed in the same way as already described in connection with the first embodiment according to FIGS. 1 to 4. Components of the same design therefore have the same reference symbols in FIG. 5 as in FIGS. 1 to 4.
  • a grip element 122 is provided with a first grip lever 124 which is arranged pivotably about a first pivot axis 126 and a second grip lever 128 which is pivotably articulated about a second pivot axis 130, which is spaced parallel to the first pivot axis 126 ,
  • a pivot bearing 123 for the first Handle lever 124 is formed by a pin 125 about which the first handle lever 124 is rotatable. The same pivot bearing
  • the housing 16 has a recess 133 in which at least one of the web elements 132 is displaceably guided parallel to the tensioning rail 14;
  • recesses 138 and 140 and recesses 142 and 144 which are associated with one another are provided in the housing 16.
  • a pin can be inserted into the recess 138 and blocks the tilting of the second bearing element 34.
  • a pin can be inserted into the recess 142 insert that blocks the tilting of the first bearing element 18.
  • a pin can be inserted into the recess 140, which brings the first holding element 54 into a vertical position, in which the first locking element 52 is in a non-locking position for the displacement of the tensioning rail 14.
  • a pin can be inserted into the recess 144, which fixes the second holding element 72 in a vertical position in which the locking element 70 is not jammed with respect to the tensioning rail 14.
  • a coupling element is advantageously provided as a switching element, for example in the form of a bridge element, which has a web on which pins are arranged at a certain distance (not shown in the figures).
  • This coupling element can then be arranged on the housing 16 in such a way that the displacement of the tensioning rail in one direction is possible in a first position and the displacement is blocked in the other and vice versa in a second position.
  • the coupling element is arranged so that it is inserted into the recesses 138 and 140, then a displacement of the tensioning rail in the direction A is released.
  • the coupling element thus forms, together with the recesses 138, 140, 142 and 144, a switching device for switching the direction of displacement of the tensioning rail 14. Otherwise, the clamping device 120 functions essentially the same as described above for the clamping device 10.
  • the housing 16 is advantageously designed such that it comprises a first housing part 146 (see, for example, FIG. 5), which is provided, for example, with recesses 38, 42, 50 into which the movable parts can be inserted.
  • a second housing part (not shown in the figure) to the first housing part, these parts can then be fixed in their recesses without having to be screwed. It is then sufficient to connect only the two housing parts to one another, for example using screws. This allows the manufacturing costs to be kept low.
  • a rotary-slide bearing 154 and 156 are arranged opposite each other in a housing 152, in which a tensioning rail 158 is both rotatable about a longitudinal axis 160 and is also slidably supported in the direction of the longitudinal axis 160.
  • Such a rotary-slide bearing 154 or 156 is formed by a circular recess 162, a cylindrical flange 164 being seated around the circumference of the recess 162 in order to ensure that the tensioning rail 158 can slide.
  • the tensioning rail 158 has a circular profile with opposite lateral recesses 165.
  • a first contact element 166 which is designed in particular as a contact bracket, is held on the housing 152 in such a way that it is immovable against the latter and thus the actuating device 12.
  • the clamping rail 158 is displaceable relative to this first contact element 166 by means of, for example, a cylindrical recess 167 in the first contact element 166.
  • annular recess 170 is provided in the first contact element 166, into which a corresponding flange of the rotary / sliding bearing 156 is immersed, on the one hand to ensure that the first contact element 166 can be rotated relative to the housing 152 and on the other hand that it cannot be displaced with respect to the housing 152 hold.
  • the first contact element 166 itself is held in a rotationally fixed manner on the tensioning rail 158, so that when the tensioning rail 158 rotates, the first contact element 166 is also rotated relative to the actuating device 12.
  • the recess 167 in the first contact element 166 through which the tensioning rail 158 is guided, diametrically opposite strips 169 which engage in the groove-shaped recesses 165 (FIG. 7).
  • a second contact element 172 is also held immovably and in particular in a rotationally fixed manner.
  • This second contact element 172 can be designed as a contact bracket.
  • the first contact element 166 is rotatably arranged with respect to the tensioning rail 158, in that, for example, there are no strips or bars in the recess 167 for engaging the recesses 165 Tensioning rail 158 has no such recesses at all.
  • An additional pivot bearing, as described in connection with the first embodiment (FIG. 1, pivot bearing 47) can also be provided.
  • a coupling rod 174 which is aligned in particular parallel to the tensioning rail 158 and which couples the first contact element 166 to the second contact element 172 such that when the tensioning rail 158 rotates, in which the second contact element 172 is rotated, via the coupling with the coupling rod 174, the first contact element 166 is rotated and thus rotated relative to the actuating device 12;
  • the relative orientation between the two contact elements 166 and 172 is maintained when the tensioning rail 158 rotates, without the first contact element 166 being seated on the tensioning rail 158 in a rotationally fixed manner.
  • the coupling of the first contact element 166 via the coupling rod 174 to the second contact element 172 thus blocks the free rotation of the first contact element 166 about the tensioning rail 158.
  • the coupling rod 174 is via a guide recess 176 with respect to the second contact element 172 or with respect to the first contact element 166 or with respect to both contact elements 166 and 172 slidably guided.
  • the mechanism for advancing the tensioning rail 158 functions independently of the type of fixing the first contact element 166 to the tensioning rail 158 in essentially the same as has already been described in connection with FIG. 1.
  • Feed elements 178 and 180 are also provided, between which a block element 182 is arranged.
  • the feed elements 178 and 180 can each be tilted against the clamping rail 158 in order to be clamped to the latter and in order then to be able to move them in the direction A or B.
  • the feed elements 178 and 180 have central recesses through which the tensioning rail 158 is guided and in which it can be rotated relative to the feed elements.
  • the tensioning rail 158 is guided in a rotationally fixed manner in the feed elements 178, 180, for example by holding elements of the feed elements 178, 180 engaging in the recesses 165 of the tensioning rail 158.
  • the feed elements 178, 180 must then be used as The whole can be rotatably mounted in the housing.
  • holding elements 184 and 186 are provided, which function in the same way as the holding elements 64 and 74 and the locking elements according to FIG. 1.
  • no separate locking elements and holding elements are provided as in FIG. 1, but the holding elements 184 and 186 take on both the locking and the holding function.
  • a handle lever 188 is provided which is pivotably arranged on the housing 152 with a pivot axis 190 transversely to the direction of displacement of the tensioning rail 158.
  • This handle lever 188 is pivotable in both pivot directions. In a rest position, it is perpendicular to the axis 192 Longitudinal axis 160 of the tensioning rail 158 is aligned, the longitudinal axis 192 lying in this orientation in particular in a central plane of the housing 152.
  • the switching device for locking the displaceability of the tensioning rail 158 in one direction and for switching the locking direction is basically of the same design as already described in connection with FIG. 1.
  • the coupling device 88 is then set so that the tilting of the feed element 178 and its transport in direction A is blocked, then the feed element 180 can be tilted and shifted in direction B by pivoting the handle lever 188 towards the counter element 196, whereby the Clamping rail 158 is moved in the direction B. Conversely, when the tilting of the feed element 180 is blocked, the handle lever 188 can be pivoted toward the counter element 194, so that the tensioning rail 158 can be displaced in the direction A.
  • a tensioning rail 200 is slidably but not rotatably guided to a housing 202 of the actuating device 12.
  • a first contact element 204 is immovable to the actuating device 12 on the tensioning rail 200 and can be rotated relative to the latter, for example via a pivot bearing 206.
  • the first contact element 204 is thus rotatable relative to the actuating device.
  • a second contact element 208 is seated on the tensioning rail 200 in a manner fixed against relative rotation, which is in particular designed to be rotationally symmetrical about a longitudinal axis of the tensioning rail 200 (FIGS. 8, 9).
  • the contact element has, for example, a shape already described above in connection with the contact element 49.
  • the feed mechanism for the tensioning rail 200 is basically of the same design as described in connection with the other exemplary embodiments.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Seats For Vehicles (AREA)

Abstract

L'invention concerne un dispositif de serrage comportant un rail de serrage (14) pouvant coulisser dans le sens longitudinal, et un dispositif d'actionnement (12) pourvu d'un élément de prise (77) permettant de faire coulisser le rail de serrage (14). Pour mettre en oeuvre un tel dispositif de serrage présentant un confort d'utilisation élevé, un premier élément d'appui (46) et un deuxième élément d'appui (48) sont fixés sur le rail de guidage (14), le rail de guidage (14) peut coulisser par rapport au premier élément d'appui (46), et le premier élément d'appui (46) peut être tourné par rapport au dispositif d'actionnement (12).
EP00902650A 2000-02-02 2000-02-02 Dispositif de serrage Expired - Lifetime EP1253994B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2000/000817 WO2001056746A1 (fr) 2000-02-02 2000-02-02 Dispositif de serrage

Publications (2)

Publication Number Publication Date
EP1253994A1 true EP1253994A1 (fr) 2002-11-06
EP1253994B1 EP1253994B1 (fr) 2007-05-02

Family

ID=8163818

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00902650A Expired - Lifetime EP1253994B1 (fr) 2000-02-02 2000-02-02 Dispositif de serrage

Country Status (4)

Country Link
US (1) US6601837B2 (fr)
EP (1) EP1253994B1 (fr)
DE (1) DE50014302D1 (fr)
WO (1) WO2001056746A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7699297B2 (en) * 2001-08-10 2010-04-20 Irwin Industrial Tool Company Increased and variable force and multi-speed clamps
IL150884A (en) * 2002-07-23 2006-04-10 Tefenplast Kirur Ltd Bar clamp
ATE483554T1 (de) * 2003-08-01 2010-10-15 Irwin Ind Tools Gmbh Werkzeug zum erzeugen einer spannkraft und/oder einer spreizkraft
EP1867434B1 (fr) 2003-12-12 2009-09-30 Irwin Industrial Tools GmbH Expenseur et/ou détendeur doté d'un mécanisme pas à pas et d'un entraînement par ressort destiné au déplacement continu des deux mâchoires de serrage l'une par rapport à l'autre
US7950636B2 (en) * 2007-04-19 2011-05-31 Rockler Companies, Inc. Miter joint clamp
DE102021130286A1 (de) 2021-11-19 2023-05-25 Bessey Tool Gmbh & Co. Kg Zwinge mit drehbarer Vorschubvorrichtung

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DE8915949U1 (de) 1988-08-09 1992-08-06 Petersen Manufacturing Co., Inc., DeWitt, Nebr. Schnellspann-Zwinge
US4989847A (en) 1989-09-12 1991-02-05 Grant Chapman Clamping device
US5096170A (en) * 1990-08-23 1992-03-17 Albin Stephen D Clamp for picture frame tool and other purposes
DE29603811U1 (de) 1996-03-01 1996-04-18 Drake, Johannes, 33106 Paderborn Spannzwinge zur Einhandbedienung
DE19731579A1 (de) 1997-07-23 1999-01-28 Wolfcraft Gmbh Spannwerkzeug, insbesondere Spannzwinge, Spannstock oder Spanntisch
DE29908240U1 (de) * 1999-05-07 1999-09-09 FESTO Tooltechnic GmbH & Co., 73728 Esslingen Spannzwinge
DE29919066U1 (de) * 1999-10-29 1999-12-30 Lee, Arnold, Taipeh/T'ai-pei Klemm- und Auftragsvorrichtung

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Title
See references of WO0156746A1 *

Also Published As

Publication number Publication date
EP1253994B1 (fr) 2007-05-02
WO2001056746A1 (fr) 2001-08-09
US6601837B2 (en) 2003-08-05
US20030030205A1 (en) 2003-02-13
DE50014302D1 (de) 2007-06-14

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