Clamping tool

The invention relates to a clamp hand tool comprising a first Legs with a jaw member and a second leg having a jaw part, wherein the two limbs are pivotable relative to one another and the jaw parts form a mouth with adjustable opening width.

Such clamp hand tools are used to one or more hold the work and to keep clamped especially in the mouth. They are also called Leimzwinge or Spring Clamp. They are particularly operate with one hand.

The invention has the object of providing a clamp hand tools to improve the aforementioned type so that there are universal on possible Manner can be used.

This object is at the terminals Hand Tool aforementioned achieved in that the jaw part of the first leg and / or the second leg slidably on the associated leg is.

By mobility of the or the jaw parts of the or the associated Legs results in a further adjustment for the Clamps hand tool; the opening width can about the pivot position the two arms relative to each other and additionally or alternatively via the Shift position or the jaw parts of the or the associated Legs can be adjusted.

From the prior art known clamp hand tools have the Disadvantage that the clamping force which acts on a clamped workpiece, depends on the opening width of the mouth. Typically, the clamping force with smaller opening widths smaller than in larger opening widths; this is used by the stress-strain characteristics of commonly Springs that cause the clamping force due. Since in the present invention Solution, the opening width using the shift position of or the jaw parts can be adjusted, so can also be the force exerted on a clamped workpiece, adjust. Thus, for For example, at a predetermined opening width a certain force on the workpiece acts, adjust. In an analogous manner, can be a particular achieve clamping force for different opening widths.

The inventive solution is an additional adjustment given on the can dispense the clamping force. This additional adjustment can be realized in a structurally simple manner.

It can also be while maintaining the overall size relative to handle parts - and therefore one-handed operation - by the at least one movable Jaw part an opening width of the mouth at a greater span area set to. In particular, opening widths can be adjusted as only not handed single clips or clamps known are.

In particular, the sliding jaw part of the other jaw member is away slidably or is on the other jaw member to be displaced. The distance between the movable jaw member and a pivot bearing for the two Leg is adjustable. In this way, the opening width of the mouth is over Displacement of the jaw parts or adjustable.

Additionally or alternatively, for adjusting the opening width over a certain Pivoting position of the two legs is then the sliding Jaw part an opening width of the mouth adjustable, wherein the clamping force, exerted on a clamped workpiece, is adjustable.

In the inventive solution on the movable jaw part is the Tensioning force to one or more workpieces, which is clamped in the jaw are adjustable. This is the force applied to one or more workpieces is applied to dose.

It is advantageous if the jaw part of the associated leg lockable is displaceably guided. This allows defined opening widths set be, and the position of the jaw part of the associated leg fixed is set.

Conveniently, there is a shift towards the movable jaw member transverse and in particular perpendicular to a pivot axis for the first Leg and second leg. In this way can be easily a shift position or the movable jaw parts an Setting the opening width.

For the same reason it is advantageous if a shift towards the movable jaw part transversely and in particular perpendicularly to a longitudinal direction a handle portion of the corresponding leg is. A displaceability a mouth part can be realized in a simple manner if a Rail is provided for the movable jaw part. Such slide can be produced in a simple manner to a slide guide to realize. Furthermore, can the displacement of the respective jaw part operate in a simple manner.

Conveniently, the guide rail extending transversely and in particular perpendicularly a handle portion of the associated leg. This can be the jaw part in a direction transverse and in particular perpendicular to the handle portion move.

In particular, it is provided that the guide rail with a handle portion the associated leg is connected. The compound may be integrally or it may be separate components that subsequently another be fixed. Via the hand grip part can be (in conjunction with a Handle portion of the other leg) a specific pivotal position of Legs reach for setting an opening width of the mouth. By positioning the jaw part on the slide rail can be this opening width vary or it can be at a predetermined opening width, in particular in Interaction with changing the pivot position of the legs a adjust clamping force.

In one embodiment, the displaceable jaw part is designed as a sliding arm, is what led to the side rail. This can be easily Way to realize a shift guide, a certain shift position is particularly noticeable.

A detectability can be implemented in a simple manner when the sliding arm a clamping force on the slide rail can be releasably fixed. The Clamping force holding the slide bracket so in a set shift position, that it can only be moved when the clamping force is released. To achieve the clamping force a force is preferably required which Force direction is transverse to the direction.

A clamping force can be realized in a simple manner if one or a plurality of elastic members (spring members) are provided around the sliding arm to keep to the side rail. About elastic elements it can be reach the next fixation in a displacement position that the Sliding arm of a transition phase during the shift to a holding position is pressed, in which it sits essentially without play.

In particular, a resilient tongue member is at least provided Pushing the slide bracket to the slide rail and thus a contact element pressed into a receptacle. Preferably, the tongue element exerts a Normal force and a force along the direction of displacement. This leaves to press the sliding arm in an essentially play-free retaining position and Keep it.

Preferably disposed at least one tongue element on the sliding bracket and, for example, integrally formed on the sliding arm. If the Sliding arm is made of a plastic material then can be a corresponding tongue element molding in one piece in a simple manner.

A fixation device can be manufactured in a simple manner if the Sliding arm having one or more system elements and the slide matched recordings in which a displacement of the slide bracket is locked if the at least one contact element is immersed in a receptacle. When exertion of force in the direction of displacement, the contact element abuts a wall of the housing and whose movement is blocked. To the contact element led out of a receiver, a force is required, when a contact element in an associated view on clamping force in the type of screening is held. The direction of the force required to a contact element of a recording to bring out (and thus a Displacement of the slide bracket to allow), transverse to the direction of displacement.

In particular, a row of receptacles is provided, for example, in Type of wave structure in order along the shifting direction of a variety of be able to provide fixation positions and increase the distance between To keep adjacent (discrete) fixing positions low.

makes a fixation in a holding position and a release from a holding position achieved in a simple manner, if the recordings and a surface on the one force exerting element as a resilient tongue element acts on opposite sides of the slide rail are arranged. This leaves to press the sliding bracket with a contact element in a recording and upon application of a counterforce can be a conditioning element of a recording lead out, so as to solve the hold.

It is favorable when the shots have side surfaces with respect to the Shift direction are inclined. The sides must not present be flat, but can also be curved. In inclined side surfaces is by applying a force with a force component parallel to the direction a corresponding contact element in a potential minimum pressed. It can thereby be an essentially play-free retaining position realize. Preferably then is a photograph as a kind of trough formed with sloping sidewalls.

It can be provided that the sliding rail provided with a scale is. This facilitates the defined setting a shift position of the Slide bracket on the slide rail or the guide rail on the associated Leg.

It can also be provided alternatively or additionally that the slideway is arranged displaceably fixable in the associated leg. The slide is slide in the sense that they led to the associated leg is, that the associated limb can "slide". The corresponding Jaw part of the leg can then move in that the slide moves with the jaw part. There were anticipated already Advantages described above; In particular, the clamping force on one or a plurality of workpieces adjustable in the jaw.

The jaw member may be stuck on the movable rail by it is, for example, integrally formed on the slide bar or on this is fixed by fastening means such as screws or bolts. It is also possible that the jaw itself ascertained displaced sliding on the Slide sits. A relative distance between the jaw part and the Then pivot bearing can be adjusted by two different ways, namely adjustment of the position of the jaw part to the side rail and through adjustment of the position of the slide on the associated leg. In this case, the slide rail in a double meaning, since the jaw part, which is in particular designed as a sliding arm, to the Rail is guided displaceably lockable, and on the other hand, the slide rail is performed by you on the leg lockable movable.

In particular, it is then provided that the associated leg a having guide recess for the sliding bar to such a relative displacement between the slide (with the mouth part) and the leg to enable. It can, as described above, elastic members provided be to defined for jamming of holding positions of Slide to provide the leg.

In order to realize a clamp which is preferably between the first Leg and the second leg, a spring, such as a Torsion spring or leg spring, respectively. The spring is then responsible for a clamping force, the one or more workpieces between the jaw parts the mouth holds.

Preferably, the spring is so arranged and constructed that an external Effort is needed to the legs relative to each other under magnification the opening width of the mouth to pivot. Without external Strength exercise then the spring pushes the two legs apart and characterized the jaw parts together. When under external force applying the Legs are pressed together at their handle portions, then the Spring is compressed and the mouth opens. When introducing a Workpiece into the mouth under the mouth parts plant then acts a clamping force on the workpiece.

The spring is, for example, as a torsion spring formed with at least one leg. It may be a spring coil with several windings exhibit. The at least one leg of the spring can be connected to a handle portion and in particular at a the handle portion of the other leg inner side facing the handle portion are positioned. This leaves the spring positioned in a safe and simple way and fix.

In particular, a spring coil between a first leg and a second leg formed.

The spring coil may over a pin element, by which a wave or a pivot bearing is formed for the swiveling of the terminal legs, be arranged.

In particular, the spring is so arranged and formed that the legs a clamping force on one or exercise more workpieces, which between the jaw parts of the two legs are.

It is particularly advantageous if in the jaw part of the first leg and / or the second leg a contact element for a workpiece movable is arranged, and in particular pivotable with a pivot axis arranged parallel to the pivot axis for the pivotal movement of the two legs is. This is a good investment of the jaw members can be on a workpiece reach regardless of the opening width of the mouth.

The following description of a preferred embodiment is used in the Conjunction with the drawings to illustrate the invention. It show:<dl tsize="7"><dt>figure 1</dt><dd>a plan view of an embodiment of an inventive Clamps hand tool;</dd><dt>figure 2</dt><dd>a view of the clamps hand tool according to Figure 1 in the direction A;</dd><dt>figure 3</dt><dd>a view of the clamps hand tool of Figure 1 in the direction B;</dd><dt>figure 4</dt><dd>a view of the clamps hand tool of Figure 1 in the direction C;</dd><dt>figure 5</dt><dd>a view of the clamps hand tool of Figure 1 in the direction D; </dd><dt>figure 6</dt><dd>a sectional view of the clip hand tool in accordance with Figure 1 along the line 6-6 (see FIG. 4);</dd><dt>figure 7</dt><dd>the same view as Figure 1 with another pivot position of legs and another shift position a sliding bracket;</dd><dt>figure 8</dt><dd>a plan view of a second embodiment of a invention clamps hand tool and</dd><dt>figure 9</dt><dd>a plan view of a third embodiment of a invention clamps hand tool.</dd></dl>

An embodiment of a clamp hand tool of the invention, which is shown in Figures 1-7 and referred to in figure 1 as a whole with 10 is, comprises a first leg 12 and a second leg fourteenth

The two legs 12, 14 are pivotable relative to each other. For this is a Pivot bearing 16 is provided, comprising a pivot shaft 18th

For example, in the first leg 12 and in the second leg 14 respectively recesses 20a, 20b (see FIG. 6), said recesses 20a and 20b are aligned. The recess 20a the first leg 12 is in each case opposing tabs 22a, 22b formed (see FIGS. 1 to 5). The two flaps 22a and 22b are spaced apart. Between these two plates of the second leg 14 is provided with a corresponding element 24 is arranged in which formed the recess 20b is (see FIG. 6).

A pin member is seated in the recesses 20a, 20b and serves as a pivot shaft 18. This pin member 18 is seated rotatably on the first leg 12 and in particular a rotationally fixed to the tabs 22a, 22b. These include to in each case a recess 26 which is formed so that a corresponding Element can be received in a rotationally fixed, which the pivot shaft 18 is connected.

The first leg 12 includes a handle portion 28 and a piece with connected thereto jaw part 30. The handle part 28 is on an outer side 32 particularly ergonomic shape.

The handle part 28 and the jaw part 30 of the first leg 12 are a Connecting portion 34, wherein at the connecting portion, the tabs 22a, 22b sitting. In the embodiment shown, the handle portion extends 28 in a longitudinal direction 36. The first leg 12 is of the handle portion Off 28 configured on the outside 32 arcuate. One of the Outside 32 opposite inner side 38 has in the area of ​​the jaw part 30 is an L-shaped configuration.

In the region of one end of the jaw part 30, which faces away from the handle portion 28 is sitting a contact element 40 with a contact surface 42 for a workpiece. This contact element 40 is movable and in particular pivotable located at the mouth part 30th As pivot shaft 44 is for example a Retaining pin. The pivot axis of the pivot shaft 44 is substantially parallel aligned with the pivot axis of the pivot bearing 16th

The second leg 14 also includes a handle portion 46, which the Handle portion 28 of the first leg 12 opposite. The handle parts 28 and 46 are so configured and positioned relative to one another so that an operator which may comprise handle portions 28, 46 with one hand and the handle parts 28, can push towards each 46th

The second leg 14 also comprises a mouth portion 48 (second jaw member). At turn one end of the jaw member 48 sits a bearing element 50 with a Contact surface 52 for a workpiece. This contact element 50 is again preferably pivotally mounted to a pivot shaft 54 ​​of the jaw part 48th

A line connecting the intersection points of the pivot shaft 44 at the first leg 12 and the pivot shaft 54 ​​on the second leg 14 is perpendicular to the pivot axis of the pivot bearing 18 and parallel to a displacement direction 56 of the jaw part 48 relative to the second Leg 14th

On the second leg 14 is seated firmly offset a slide 58, which transverse and in particular perpendicular to the pivot axis of the pivot bearing 16 is oriented and transversely and in particular perpendicularly to a longitudinal direction 60 of the handle portion 46 is oriented. At this slide 58 is the Jaw part 48 of the second leg 14 is guided displaceably lockable, so that the distance of the jaw part 48 in the displacement direction 56 relative to the second leg 14 and thus can be adjusted to the pivot bearing 16th

The jaw portion 48 of the second leg 14 is designed as a slide bracket, which along the slide 58 is displaceably guided.

The slide rail 58 is fixed to the handle portion 46. The connection may be in one piece or may be two separate components act, which are subsequently fixed together.

To guide the sliding bracket (jaw part 48) on the slide rail 58, the Slide 58 one or more bar-shaped guide profiles. In which the illustrated embodiment includes the guide rail 58 three spaced Guide rails 62a, 62b and 62c (Figure 2), which along the direction of displacement 56 are arranged and comprise at one end of the jaw part 48, which is the end to which the contact element 50 sits averted.

The jaw member 48 has a guide portion 64, through which the jaw member 48 sitting on the slide 58th This guide portion 64 has, in turn, corresponding recesses 66a, 66b and 66c on which the corresponding Guide rails 62a, 62b and 62c accommodate.

It can be provided that the central guide bar 62b greater Height than the edge-guide bars 62a and 62c (see FIG. 3).

About the guide portion 64 with the adapted guide rails 62a, 62b, 62c and recesses 66a, 66b, 66c on the one hand a good guidance of the Slide bracket 48 is ensured on the slide rail 58, on the other hand it is ensured that the mouth part 48 is not transverse to the direction of displacement 56 can be removed from the slide 58th

On an outer side 68, which faces the contact element 50, has the slide bar 58 is a row of receptacles 70 for a contact element 72 (See FIG. 6) of the jaw part 48. The number of shots is 70, for example, formed in a sort of wave profile, wherein the depressions on the Outside 68 are provided, which periodically in the direction of displacement 56 repeat.

The contact element 72 of the jaw part 48 can in a corresponding receptacle 70 plunge. This displacement can be in the direction of displacement block 56, so that the jaw part 48 in a certain distance position is held to the handle part 46th This holding is carried out in particular in essentially without play.

To hold a latching of the guide portion 64 with the slide 58 provided. In particular, a clamping force is exerted in an a assigned receptacle 70 dipped conditioning element 72 in these same recording 70 presses and thus ensures a catch.

In the illustrated embodiment, this includes the jaw part 48 of the The leg 14 one or more elastic elements, and in particular one or more tongue elements 74, which resiliently mounted to the jaw part 48 are.

Such a tongue member 74 (see FIG. 6) acts on the outside 68 opposite side 76 of the slide rail 58 and presses against it. In turn, the contact element 72, which in the corresponding Receiver 70 is located, pressed in this receptacle 70, so that movement in the direction of displacement is 56 blocked. By exerting force transverse to the direction 56, the contact element 72 is released from the receptacle 70 be to carry out a displacement of the slide bracket 48th

The at least one tongue element 74 is especially integral to the Jaw part 48 is formed. It is in particular integrally connected to the jaw part 48th It covers, for example, of the handle portion 46 and away protrudes through an outer surface 78 of the jaw part 48 addition. It thereby exerts a force which has a component parallel to the direction 56 and a component perpendicular to the direction 56 has, whereby the Force application point 80 is preferably based on the direction of displacement 56 located at a distance from the contact element 72 of the jaw part 48th This distance in the direction of displacement 56 to the pivot bearing 16 is greater than the distance of the contact element 72 in the direction of displacement 56 to pivot 16th

The recordings 70 are correspondingly preferably with the contact element 72 so constructed that the at least one through the application of force Tongue member 74 (with a force component parallel to the direction 56) of the jaw part 48 of the leg 14 is pressed into a holding position is where the jaw part 48 essentially without play on the slide rail 58 is held. For this purpose the record 70 preferably with respect to the displacement direction 56 inclined walls (in Figure 6 by the reference numeral 82 indicated), which cause the contact element 72 in the low point one formed by a receiver 70 trough in the manner of a potential minimum is pressed.

Between the two legs 12 and 14, a spring is 84 (Figures 1, 6 and 7), which is biased so that it strives to provide the two legs 12, 14 to push apart (see FIG. 7). The pivoting movement of the two legs 12, 14 is then no external force exerted by limited such that the two contact elements 40, 50 against one another (Figure 7) or that the contact elements 40, 50 bear against a workpiece which located between the two jaw parts 30, 48th

The two jaw parts 30, 48 form a mouth 86 whose opening width by the relative pivoting position of the two legs 12, 14 is adjustable. Around to open the mouth, a force must be exerted by the two Legs 12, 14 towards one another are pressed. This force is a Operator exercised. If then inserted a workpiece into the open mouth 86 will and the force is weakened to such an extent that the contact elements 40, 50 rest against the workpiece, then exerts the spring 84 a corresponding Force which clamps the workpiece in the jaw 86 with the jaw parts 30, 48th

A corresponding clamps hand tool, for example in connection used with the gluing of wood parts and therefore as Leimzwinge referred.

The spring 84 is, for example, a torsion spring or Leg spring.

The spring 84 includes, for example, a first leg or bracket 85a and a second leg or bracket 85b (Figure 6). Between these legs 85a, 85b is formed a spring winding 87th The spring coil 87 surrounds the is pin element 18, that is, the pin member 18 through an interior space of Spring coil 87 carried out.

The spring 84 is of the on its first leg 85a of the handle portion 28 the first leg 12 is held. This purpose has to a second leg facing 14, shell-shaped inner side apart Web elements 89 on with recesses into which the first leg 85a the spring 84 sits and sits particularly tense.

The second leg 85b of the spring 84 is in the same manner at an inner side of the handle portion 46 of the second leg 14 is positioned.

According to the invention it is provided that the opening width of the mouth 86 and adjusted additionally on the displacement of the jaw part 48 of the slide 58 is. This results in the possibility of the clamping force with which a Workpiece between the two contact elements 40, 50 is clamped, also adjust. For example, if a workpiece having a predetermined Dimensions to be held by the clamps hand tool 10, then a certain opening width of the mouth can 86 both on the Pivoting position of the two legs 12, 14 as well as on the shift position the jaw part 48 reach. Usually, it is such that with a small Swivel angle between the two legs 12 and 14 (indicated in Figure 1) a relatively large force is exerted. An operator can this force Decrease by a larger angle between the two legs 12, 14 permits (ie for a lower pivoting from the starting position provides), but the distance of the jaw part 48 in the direction of displacement 56 increased from the pivot 16th

Since the two contact elements 40 and 50 pivotable at their respective Mouth parts 30, 48 are arranged, is for a secure contact with the workpiece regardless of the pivotal position of the two arms 12, 14 relative made to each other.

This can be for example in sensitive workpiece surfaces lower clamping forces exercise.

The inventive clamp hand tool 10 can thus be at predetermined opening width of the mouth 86 through corresponding adjustment of the Pivoting position of the two legs 12, 14 and the shift position the jaw part 48 to adjust the force, ie the force applied to the workpiece is exerted, can be dosed.

Analogously, a particular character can be a workpiece that to be clamped, even with different opening widths the mouth 86 accomplish.

It can be provided that disposed on the slide rail 58, a scale 88 is (Figure 7) to a defined shift position of the jaw part 48 the slide 58 to adjust.

Usually, torsion springs on a stress-strain characteristics, in with a smaller travel the force is disproportionately smaller than greater suspension travel. This means known from the prior art Chuck hand tools that a small and may not be sufficient Clamping force acts when the be clamped workpiece low having height dimensions and in particular is flat. In the inventive Solution can fix this by the fact that the spring 84 is installed so that in a starting position, wherein the spring path a zero position, has the jaw part 48 at a distance from the handle portion 46 is positioned. It may then be the same opening width also reach when the two legs 12, 14 are moved toward each other and the Jaw member 48 is moved to the pivot bearing 16. This new but is pivotal position of the two legs 12, 14 to one another a greater reached spring break with a greater force, so that with the same opening width the mouth 86, a greater force acts. The inventive therefore but solution can be used conventional springs 84, wherein even at small opening angles, a higher clamping force can be achieved, without that precisely the spring must be changed 84 itself.

The legs 12, 14 can in principle be made of a metallic material be prepared. However, it is also possible for the legs 12, 14 from a produce plastic material.

The clamps hand tool 10 includes a slidable jaw member, namely the jaw part 48, while the jaw part 30 fixed to the first leg 12 connected is. It is basically also possible that both jaw parts 30, 48 to the associated leg 12, 14 are slidable.

In a second embodiment of a clip according to the invention hand tool, that shown in Figure 8 and is designated as a whole by 90 is, a first leg 92 and is provided a second leg 94, which are basically configured as described above, wherein she respective jaw parts 96 and 98 include. The jaw portion 98 of the second Leg 94 is stuck, for example via a pin connection 100, to a slide rail 102. This guide rail 102 is in the direction of displacement 56 displaceable with respect to the legs 92, 94 so that in this way the Distance of the jaw part 98 to a pivot bearing 104 for pivoting the two limbs 92, 94 is adjustable.

The displaceability of the slide rail 102 to allow the legs 92, 94, has the leg 94 a recess 106, into which the guide rail 102 is immersed. This recess 106 serves as guide recess respect for the slide rail 102 to indicate the mobility of the second leg 94 to allow. The leg 92 may include a recess 108 have, in particular, is formed as a free space, the Displaceability of the slide rail 102 with respect to the first leg 92 and allows pivoting of the two arms 92, 94th

The slide rail 102 with respect to the leg 94 slidably lockable. The recess 108 is so formed that when on the second leg 94 guided rail 102 the pivotability of the two arms 92, 94 ensured relative to each other remains.

The finding of the slide rail 102 for setting a certain distance position the jaw part 98, with respect to the pivot bearing 104, for example, on one or more clamping force effected generating elements, described as above in connection with the first embodiment were. For example, the first leg 94 with one or more resilient elements may be provided, which act on the guide rail 102, to this in a specific shift position largely without play keeping with this shift positions are adjustable.

In the embodiment according to Figures 1 to 7, the relative mobility is the jaw part 48 relative to the associated leg 14 thereby ensures that the jaw part 48 connected to a fixed to the leg 14 Slide 58 is displaced. In the embodiment according to Figure 8 is the relative mobility of the jaw part 98 opposite the associated Leg 94 achieved by the fixed to the side rail 102 arranged jaw part 98 movable with respect to the leg 94 Slide 102 is movable.

Basically a combination of both displacement solutions is possible namely that one jaw part is slidably guided on a guide rail and the slide itself in turn slidably associated to the Leg is slidably.

designated at a shown in Figure 9, and there as a whole with 110 third embodiment, a first leg 112 and a second Leg 114 is provided. These are of a pivot bearing 116 relative to each other pivotable. The first leg 112 includes a jaw portion 118 and the second leg 114 includes a jaw part 120. This jaw part 120 is as Slide bracket similar to the jaw part 48 according to the first embodiment formed and to a sliding rail 122 slidably lockable. The finding can over klemmkraftausübende elements as related be realized described with the first embodiment.

It can also be an additional positive engagement determination 124 may be provided, around the mouth portion 120 to be fixed form-fitting manner with the slide rail 122 so that a displacement along the guide rail 122 is locked.

The second leg 114 has a receptacle 126 into which the guide rail 122 immersed and in which they performed lockable slidably is.

The slide rail 122 is attached to the second leg 114 in particular via a Positive connection 128 fixable.

When the mouth part 120 through the interlocking finding 124 on the slide bar 122 is fixed and the slide rail 122 on the leg 114 through the form-locking connection 128 is fixed, then the opening width can only have the relative pivoting position of the two legs 112, are adjusted 114th

If the interlocking determination is achieved 124, then the relative position the jaw part 118 set by displacement along the slide 122 are, the jaw part 118 in certain shifting positions, for example, is held essentially without play by clamping force.

If the form-locking connection is released 128, then, the relative position the jaw part 120 to the pivot bearing 128 by displacement of the slide 122 are set relative to the second leg 114, wherein the relative Shift positions, for example via a clamping force substantially be held without play.