Lifting clamp

Abstract

There is provided a lifting clamp comprising: a slide rail (12); a supporting device (24) which is arranged on the slide rail (12) and via which the lifting clamp (10) can be placed on the base part (26); a bearing device (52) which is movably arranged on the slide rail (12) and has at least one bearing element (64) for the workpiece, the movement axis (62) of the bearing device (52) on the slide rail (12) being parallel to the spacing direction (66) between the supporting device (24) and the at least one bearing element (64); a first movement mechanism (128) having a pushing device (130), an actuating lever (84) which is pivotably mounted on the contact device (52), and a mating element (94) which is rigidly connected to the contact device (52), the actuating lever (84) being coupled to the pushing device (130) and, when the actuating lever (84) is pivotably moved in a lifting function of the lifting clamp (10), the mating element (94) being rigidly connected to the contact device (52). The distance between the supporting device (24) and the at least one contact element (64) is gradually increased; a second movement mechanism (150) having a lowering lever (152), the lowering lever (152) being arranged on the contact device (52) and the distance between the at least one contact element (64) and the supporting device (24) being gradually reduced by actuating the lowering lever (152) in the lifting function; and a third movement mechanism (202) having a release lever (120), the release lever (120) being arranged on the contact device (52) and by actuation of the release lever (120) being able to release a movable blocking of the at least one contact device (52) on the slide rail (12), at least one of the following being provided: (i) a lowering lever (152) being positioned between the actuation lever (84) and the mating element (94) with respect to a movement axis (62); (ii) The release lever (120) is positioned between the joystick (84) and the mating element (94) with respect to the movement axis (62).

Description

Technical Field

[0001] The present invention relates to a lifting clamp, which includes: a slide rail; a supporting device, which is arranged on the slide rail, and the lifting clamp can be placed on the base part via the supporting device; a abutting device, which is movably arranged on the slide rail, and the abutting device has at least one abutting element for the workpiece, wherein the moving axis of the abutting device on the slide rail is parallel to the direction of the distance between the supporting device and the at least one abutting element; a first motion mechanism, which has a pushing device, a lever swingably arranged on the abutting device, and a mating element firmly connected to the abutting device, wherein the lever is coupled to the pushing device, and when the lever swings during the lifting function of the lifting clamp, the distance between the supporting device and the at least one abutting element gradually increases; a second motion mechanism, which has a lowering rod, wherein the lowering rod is arranged on the abutting device, and by operating the lowering rod during the lifting function, the distance between the at least one abutting element and the supporting device gradually decreases; and a third motion mechanism, which has a release rod, wherein the release rod is arranged on the abutting device, and by operating the release rod, the locking of the movability of the at least one abutting device on the slide rail can be released. Background Art

[0002] WO 2019 / 160424 A1 discloses a hand-held lifting tool having a track and a frame, wherein the frame can move relative to the track. To achieve this movability, a pumping mechanism is provided. Two outer legs are fastened to the frame or the track. A central leg is fastened either to the frame or to the track and is positioned between the outer legs. Feet are respectively connected at right angles to each of the legs, wherein the feet point in the same direction.

[0003] WO 2020 / 209731 A1 discloses a lowering mechanism for a hand-held lifting tool.

[0004] GB 501 554 discloses a car jack. The car jack is also disclosed in US 2 820 608, DE 2 002264 and GB 732 528. Summary of the Invention

[0005] The object of the present invention is to provide a lifting clamp of the type described at the beginning, which can achieve simple and safe operation with a simple structure.

[0006] According to the present invention, in the lifting clamp mentioned at the beginning, this object is solved by at least one of the following:

[0007] (i) The lowering rod is positioned between the lever and the mating element with respect to the moving axis;

[0008] (ii) The release lever is positioned between the joystick and the mating element with respect to the movement axis.

[0009] With the lifting tongs according to the invention, it is possible, in particular via a single-handed operation, to lift a workpiece or load resting on at least one abutment element while increasing the distance between at least one abutment element and the support device. This is achieved via a first movement mechanism.

[0010] By operating the lowering lever, a stepwise ("slow") lowering of the abutment device having at least one abutment element towards the support device is achieved via a second movement mechanism.

[0011] By means of a third movement mechanism having a release lever, free mobility of the abutment device on the slide rail is achieved when the release lever is operated.

[0012] It is provided according to the invention that the lowering lever and / or the release lever are positioned between the joystick and the mating element. Thereby, they are to a certain extent covered upwards and downwards. In the lifting function of the lifting tongs, the levers mentioned (individually or together) are covered by the mating element downwards towards the support device and by the joystick upwards.

[0013] This can effectively prevent the lowering mechanism or the release mechanism from being inadvertently triggered by the operator.

[0014] In particular, a manual operation is provided, in which the operator presses against the mating element and the joystick with one hand. Since the lowering lever and / or the release lever are protected and arranged between the joystick and the mating element, it is possible, for example, in principle to also operate the joystick with the foot, because an inadvertent operation of the lowering lever or the release lever is effectively prevented.

[0015] More particularly advantageously, the joystick and the mating element are arranged such that the mating element and the joystick with its swingability can be grasped by the operator with one hand, wherein in particular the mating element is arranged for abutting against the inner side of the operator's palm and the joystick is operated by means of a thenar movement. Thereby, a stepwise increase in the distance between at least one abutment element and the support device can be achieved in a simple manner. Thus, a workpiece or load can be effectively lifted, i.e. moved away from the support device.

[0016] In one embodiment, the lowering lever has a first operating surface and the release lever has a second operating surface. This results in simple operability. In particular, the operation is achieved by the operator applying pressure to the respective operating surface (in the direction towards the mating element).

[0017] Then in particular, at least one of the following is provided:

[0018] - In the direction perpendicular to the slide rail, the second operating surface is closer to the slide rail than the first operating surface;

[0019] - In the direction perpendicular to the slide rail, the first operating surface and the second operating surface are arranged one after the other;

[0020] - The first operating surface and the second operating surface are flush with each other on a straight line, which is oriented transversely to the slide rail and intersects the abutting device and in particular the slide rail;

[0021] - The first operating surface and / or the second operating surface are arranged and configured such that they can be actuated by the operator's grasping hand and in particular by the thumb of the grasping hand;

[0022] - In the direction perpendicular to the slide rail, the second operating surface is positioned between the slide rail and the first operating surface.

[0023] When the release lever is actuated, free mobility of the abutting device relative to the slide rail is obtained. If at least one abutting element on the abutting device is loaded with a load, actuation of the release lever can cause the abutting device to move rapidly downward towards the support device ( "downward rush") under the influence of gravity.

[0024] If the second operating surface is closer to the slide rail than the first operating surface, it is generally more difficult for the operator to reach the second operating surface. This makes it difficult to accidentally trigger the release lever.

[0025] Due to the arrangement of the first operating surface and the second operating surface one after the other in the direction perpendicular to the slide rail, a "visual hierarchy" is obtained. This reduces the risk of the operator confusing the release lever and the lowering lever. For example, this can also be supported by different colorings of the first operating surface and the second operating surface or the like.

[0026] When the first operating surface and the second operating surface are flush on a straight line, a structurally simple design is obtained.

[0027] In addition to the one-handed operability of the first motion mechanism, one-handed operability of the second motion mechanism and, if necessary, of the third motion mechanism can be obtained by the operability of the thumb of the grasping hand.

[0028] In one embodiment, the release lever passes through the lowering lever, or alternatively, the lowering lever passes through the release lever. Thereby, an arrangement of the release lever and the lowering lever one after the other in the direction of the spacing from the slide rail is obtained in the case of a structurally simple design.

[0029] Advantageously, at least one of the following is provided:

[0030] - The abutment device has a first side and an opposite second side, wherein the slide rail is positioned between the first side and the second side, and wherein the joystick and / or the mating element projects from the first side of the abutment device, and at least one abutting element projects from the second side of the abutment device;

[0031] - The joystick and the mating element project away from the slide rail on the same side of the slide rail;

[0032] - The release lever projects away from the slide rail on the same side of the slide rail as the joystick and / or the mating element;

[0033] - The lowering lever projects away from the slide rail on the same side of the slide rail as the joystick and / or the mating element;

[0034] - The mating element and / or the joystick, the release lever and the lowering lever are located in the central plane of the slide rail.

[0035] Simple operability is achieved by the corresponding arrangement of the joystick and the mating element, as well as the release lever and the lowering lever relative to the slide rail, especially in the same half-space delimited by the half guide rails. The lifting tongs can be assigned a workpiece side and an operating side, wherein all the elements required by the operator for operating interventions (joystick, release lever, lowering lever) are arranged on the same operating side, and the operating side faces away from the workpiece side.

[0036] If the mating element and / or the joystick, the release lever and the lowering lever are located in the central plane of the slide rail, a structurally simple design is obtained. In particular, the release lever and the joystick can be flush-mounted one behind the other.

[0037] In one embodiment, the mating element has a housing with an internal space, wherein the lowering lever and / or the release lever are at least partially located in the internal space, and in particular, the internal space of the housing forms a stop for the release lever and / or the lowering lever. Thereby, simple operability is achieved. A structurally simple design is obtained. In particular, by means of the stop for the lowering lever on the inner side of the housing, simple operability for stepwise lowering is obtained in the case of a structurally simple design.

[0038] For the lifting function in which the distance between the abutment device and the support device can be increased by a first motion mechanism, it is advantageous that the mating element is positioned between the support device and the joystick with respect to the movement axis. Thereby, a structurally simple design is obtained. When operating the joystick, the operator can utilize his body weight because the joystick is located above the mating element with respect to the direction of gravity when the lifting tongs are placed upright, and the operation includes pressing downwards. Thus, for example, the joystick can also be operated with the foot.

[0039] More particularly advantageously, a blocking device is provided, which is arranged on the abutting device and, when in the blocking position in the lifting function, blocks the movability of the abutting device towards the supporting device. Thereby, an effective lifting function is obtained; when operating the first movement mechanism, the blocking device prevents reverse movement and thereby a pure lifting function is obtained.

[0040] In particular, the blocking device includes at least one blocking element, which is movably arranged on the abutting device and through which a slide rail passes, and the blocking element has at least one of the following:

[0041] - At least one blocking element is configured as a thin plate and is especially made of a metal material;

[0042] - A blocking element group with a plurality of blocking elements is provided, wherein adjacent blocking elements abut against each other;

[0043] - In the blocking position, at least one blocking element is skew-locked relative to the slide rail and blocks the movability of the abutting device towards the supporting device in the lifting function, wherein at least one blocking element allows the movability of the abutting device away from the supporting device;

[0044] - A release lever acts on at least one blocking element, wherein by operating the release lever, at least one blocking element can be brought into a neutral position in which the blocking effect is cancelled;

[0045] - The release lever is directly connected to at least one blocking element;

[0046] - A spring device is provided, which is supported on at least one blocking element and holds at least one blocking element in the blocking position in the absence of a force acting on the release lever;

[0047] - At least one blocking element is arranged on the abutting device in a swingable manner and especially only in a swingable manner and can swing relative to the slide rail;

[0048] - The release lever is arranged on the abutting device in a swingable manner and especially only in a swingable manner;

[0049] - With respect to the movement axis, at least one blocking element is arranged on the abutting device closer to at least one abutting element than the pushing device of the first movement mechanism;

[0050] - With respect to the area around the slide rail, at least one blocking element is positioned between the lowering rod and the supporting device in the lifting function and with respect to the movement axis;

[0051] - A stop for at least one locking element is provided on the abutting device, which stop defines the maximum deflection of at least one locking element to the locked position, wherein the locked position is cancelled when abutting against the stop.

[0052] This results in a locking device with a simple structure that has an effective locking function. In addition, a third movement mechanism with a release lever can be formed in a simple manner. This results in a locking effect for relatively heavy loads.

[0053] Furthermore, it is advantageous that at least one locking element is positioned in the housing of the abutting device, and in particular is positioned such that, with the decoupling of at least one locking element from the slide rail, the abutting device can be removed from the slide rail, and with the coupling of at least one locking element to the slide rail, the abutting device can be pushed onto the slide rail. Thereby, the replacement of the abutting device can be achieved. For example, it is also possible to fit the abutting device onto the slide rail either for a lifting function or for a clamping function. In the lifting function, when the first movement mechanism is actuated (by operating the control lever), the distance between at least one abutting element and the supporting device increases. By fitting the abutting device onto the slide rail in a reversed manner compared thereto, when the first movement mechanism is actuated, the distance between at least one abutting element and the supporting device is reduced. Thereby, one or more workpieces can be clamped between the supporting device and at least one abutting element. Thereby, the lifting tongs can be converted into clamping tongs.

[0054] Furthermore, it is advantageous that the pushing device has at least one pushing element, the slide rail passes through the pushing element, and the control lever acts on the pushing element, and the pushing element in particular has at least one of the following:

[0055] - At least one pushing element is configured as a thin plate and in particular is made of a metallic material;

[0056] - A group of pushing elements with a plurality of pushing elements is provided, wherein adjacent pushing elements abut against each other;

[0057] - The control lever acts on at least one pushing element such that when the control lever is actuated, at least one pushing element is skew-carded (verkantet) with the slide rail and moves relative to the abutting device, and thereby causes the abutting device with at least one abutting element to move relative to the slide rail;

[0058] - At least one pushing element is arranged on the abutting device in a swingable and movable manner;

[0059] - At least one pushing element can swing relative to the slide rail;

[0060] - At least one displacement element is supported on the abutment device by a spring device, wherein in order to swing the operating lever towards the mating element, the spring force of the spring device must be overcome, and releasing the operating lever causes at least one displacement element and in particular also the operating lever to return to the neutral position relative to the slide rail;

[0061] - With respect to the movement axis, at least one displacement element is closer to the operating lever than the mating element;

[0062] - With respect to the lifting function of the lifting tongs and with respect to the movement axis, the locking device is positioned between the supporting device and the displacement device;

[0063] - The skew angle (Verkantungswinkel) of at least one displacement element with respect to the slide rail and the skew angle of the locking element of the locking device with respect to the slide rail have opposite signs.

[0064] Thereby, the first movement mechanism can be realized in a simple manner, wherein in particular, relatively large loads can be lifted. In particular, single-handed operability is achieved, and if necessary, foot operability is achieved.

[0065] Then it is advantageous if at least one displacement element is positioned in the housing of the abutment device and in particular is positioned such that, with the decoupling of at least one displacement element from the slide rail, the abutment device can be removed from the slide rail, and with the coupling of at least one displacement element to the slide rail, the abutment device can be put on the slide rail. In particular, thereby the lifting tongs can be switched from the lifting function to the clamping function.

[0066] Even more particularly advantageous is that the second movement mechanism includes at least one intermediate element, which is positioned on the abutment device and on which the lowering lever acts. Thereby, a second movement mechanism can be realized in a design-simple manner, which enables at least one abutment element to descend step by step towards the supporting device. The second movement mechanism can be realized as a mechanism for "slow" descent (compared to a third movement mechanism that can descend quickly if descent occurs).

[0067] In particular, at least one intermediate element is positioned here with respect to the movement axis between the displacement device on which the operating lever acts and the locking device on which the release lever acts. For example, thereby it is also possible to act on not only at least one intermediate element but also on the locking device via the lowering lever. Thereby, a structure that is simple in design is obtained.

[0068] Advantageously, at least one intermediate element is positioned in the housing of the abutment device, and in particular positioned such that, with the decoupling of the at least one intermediate element from the slide rail, the abutment device can be removed from the slide rail; and with the coupling of the at least one intermediate element to the slide rail, the abutment device can be put on the slide rail. Thus, for example, the lifting tongs can be switched from the lifting function to the clamping function.

[0069] In one embodiment, the at least one intermediate element is provided with a recess through which the slide rail passes. Thus, by the action of the lowering rod, the skew engagement of the at least one intermediate element with the slide rail can be achieved in a simple manner. Thereby, the step-by-step or slow lowering function can be achieved again in a simple manner.

[0070] Advantageously here, the at least one intermediate element is positioned on the abutment device in a swingable and movable manner, and in particular swingable relative to the slide rail. The swinging and moving can be achieved by the action of the lowering rod. The swinging results in the skew engagement with the slide rail, and the movement ensures the relative movement between the abutment device and the slide rail. Thereby, the slow or step-by-step lowering of the abutment device with at least one abutment element towards the support device can be achieved again.

[0071] Furthermore, it is advantageous to provide at least one of the following:

[0072] - The at least one intermediate element is configured as a thin plate and in particular made of a metallic material;

[0073] - The at least one intermediate element has a neutral position when the lowering rod is not actuated, in which the slide rail can move relative to the at least one intermediate element;

[0074] - The at least one intermediate element is skew-engaged with the slide rail and moves relative to the abutment device by actuating the lowering rod, wherein the actuation is in particular towards the mating element, and wherein the abutment device moves in the direction of the support device with respect to the lifting function of the lifting tongs;

[0075] - The movement of the abutment device towards the support device only occurs during the movement of the lowering rod.

[0076] Thereby, the second movement mechanism can be configured in a design-simple manner and in particular can also be integrally and protectedly incorporated into the housing. Without acting on the lowering rod, the intermediate element does not prevent the advancement of the first movement mechanism, and even when the release rod is actuated to freely move the abutment device on the slide rail, the intermediate element does not prevent it.

[0077] If the abutment device moves towards the support device or moves during the movement of the lowering rod, a step-by-step and quantitative lowering of the abutment device towards the support device can be achieved.

[0078] More particularly advantageously, in the lifting function of the lifting tongs, when the lowering rod acts on at least one intermediate element, the lowering rod simultaneously acts on the locking device, and the abutting element is movable on the slide rail towards the supporting device. By this action of the lowering rod, the slide rail is simultaneously driven to move relative to the abutting device and the locking action of the locking device is cancelled, so that ultimately the relative movement between the abutting device and the slide rail can be achieved. The lowering rod can be supported on the locking device and has a simple structure in the design of the second movement mechanism.

[0079] Particularly advantageously, the lowering rod acts on at least one locking element of the locking device such that the locking element (even in the case of maximum deflection of the lowering rod) does not press against the stop but remains spaced apart from the stop. In particular, when the release lever is actuated, the stop is provided. Then, by the release lever, at least one locking element is pressed against the corresponding stop in order to release the free mobility of the abutting device on the slide rail. If the lowering rod is implemented such that it does not reach the stop of at least one locking element, a stepwise lowering via the second movement mechanism can be achieved in a simple design manner. Thereby, the "smooth sliding" of the abutting device on the slide rail during the actuation of the second movement mechanism is effectively prevented again.

[0080] Advantageously, a spring device is provided which is supported on at least one intermediate element, wherein when the lowering rod is not actuated, the spring device holds at least one intermediate element in the neutral position, and when the lowering rod moves, the spring force of the spring device must be overcome, and wherein after the force is applied by the lowering rod, the spring force of the spring device brings at least one intermediate element back to the neutral position. In the neutral position, the intermediate element does not prevent the mobility of the abutting device relative to the slide rail. Thereby, the intermediate element does not prevent the functions of the first movement mechanism and the third movement mechanism. In addition, a relatively large force consumption is required to trigger the second movement mechanism. This facilitates the lowering in a quantitative manner.

[0081] Particularly advantageously in terms of design, a common spring device for the pushing device and at least one intermediate element is provided, which common spring device is particularly supported on the pushing device and at least one intermediate element. Due to the solution having at least one intermediate element in terms of design, the common spring device can be applied, which in principle holds one or more pushing elements of the pushing device in the neutral position without actuating the operating lever and holds at least one intermediate element in the neutral position without actuating the lowering rod.

[0082] More particularly advantageously, the lowering lever has a first action area and a second action area. The lowering lever acts on at least one intermediate element of the second movement mechanism by means of the first area, and the lowering lever acts on the blocking device by means of the second area. Thereby, when the lowering lever is manipulated, the blocking action of the blocking device can be cancelled simultaneously (at least in a quantitative manner) and the intermediate element can be acted on in order to achieve a stepwise lowering. In addition, it is also possible to support a corresponding area of the lowering lever on the blocking device (via the second action area), in particular in order to cause the pivoting of at least one intermediate element and the movement of at least one intermediate element. The pivoting of the intermediate element results in an inclined engagement with the slide rail, and the movement of at least one intermediate element results in a relative movement of the abutting device with respect to the slide rail and thus in turn causes a stepwise lowering.

[0083] In particular, at least one of the following is provided:

[0084] - The first action area and the second action area are located on opposite sides of the lowering lever, and in particular, the first action area and the second action area are opposite with respect to the movement axis;

[0085] - The first action area points in the direction of the pushing device with respect to the movement axis;

[0086] - The second action area points in the direction of the blocking device with respect to the movement axis;

[0087] - The first action area and the second action area are located in the housing of the abutting device;

[0088] - The first action area and the second action area are located in different areas of the abutting device, and the different areas are separated by the central axis of the slide rail;

[0089] - The first action area is located in the first area of the abutting device, and at least one abutting element is located in this first area;

[0090] - The second action area is located in the second area of the abutting device, and the operating device and / or the mating element is located in this second area.

[0091] With these features, a structurally simple design is obtained. The second movement mechanism for causing the abutting device to lower stepwise in a quantitative manner can be realized in a structurally simple manner.

[0092] Advantageously, the lowering lever is supported on the abutting device in a swingable or swingably movable manner. Thereby, the lowering lever can cause the pivoting and movement of the intermediate element (when the lowering lever is manipulated). The pivoting of the intermediate element results in an inclined engagement with the slide rail, and the movement of the intermediate element results in a relative movement of the slide rail with respect to the abutting device. This relative movement is again quantitative or stepwise.

[0093] In one embodiment, at least one sliding element or rolling element is arranged on the lowering rod for (in particular additionally) guiding the lowering rod in a movable manner on the abutment device and / or the slide rail. This results in a defined stepwise lowering.

[0094] Advantageously, the mating element has or forms a stop for the lowering rod. This defines the maximum swing angle of the lowering rod. This in turn defines the corresponding action of the lowering rod on the locking device and also on the intermediate element for the abutment device to move step by step relative to the slide rail in a quantitative manner in order to achieve a "slow" lowering mechanism.

[0095] More particularly advantageously, the abutment device includes a housing through which the slide rail passes. This can effectively protect the components of the lifting tongs. These components can be mounted in a loss-proof manner. For example, it is also possible in this way to simply convert the lifting tongs from the lifting function to the clamping function.

[0096] In one embodiment, the abutment device can be removed from the slide rail and (i) is provided with the lifting function of the lifting tongs, wherein in the lifting function, the abutment device is pushed on the slide rail in such a way that at least one abutment element moves away from the support device when the control lever is actuated; and (ii) is provided with the clamping function, in which the abutment device is arranged on the slide rail in such a way that at least one abutment element moves towards the support device when the control lever is actuated. Here, in particular, the lifting tongs can be converted from the lifting function to the clamping function and vice versa. The difference between the lifting function and the clamping function ultimately lies in how the abutment device is sleeved onto the slide rail, that is, whether at least one abutment element moves away from the support device or towards the support device when the first movement mechanism is actuated.

[0097] In one embodiment, at least one abutment element includes a corner element which is fixed to the abutment device and in particular to the housing of the abutment device. In this way, the abutment element can be realized in a simple manner. In particular, at least one abutment element can be arranged on the housing in a space-saving manner without affecting the function.

[0098] In one embodiment, the corner element has a first region and a second region, the first region being oriented perpendicular to the slide rail, the second region being connected to the first region and in particular integrally connected and arranged at an obtuse angle to the first region, wherein in particular the second region is fixed to the abutment device. Basically, the first region is used to abut against the load or workpiece, while the second region is the assembly region of the corner element on the abutment device. This results in a structurally simple design. This results in a simple integration with the housing.

[0099] In one embodiment, it is also provided that the supporting device has a vault region, and the slide rail is fixed at the vault region. In this way, the supporting device can be connected to the slide rail in a simple manner.

[0100] For example, it can be provided that the supporting device has a supporting plate (which is especially made of metal material), and the vault region is arranged on the supporting plate. In this way, a stable structure of the supporting device is obtained. Then, the supporting device can be fixed at the application location in a simple manner, for example, by screwing. Description of the Drawings

[0101] The following description of the preferred embodiments is used to explain the present invention in detail in conjunction with the drawings. Among them:

[0102] Figure 1 A perspective view of an embodiment of a lifting tong according to the present invention in a neutral position (without operating the joystick, lowering lever, and release lever) is shown, wherein the lifting tong is ready for the lifting function;

[0103] Figure 2 Along the direction A according to Figure 1 a top view of the lifting tong according to Figure 1 is shown;

[0104] Figure 3 Along the direction B according to Figure 1 a rear view of the lifting tong according to Figure 1 is shown;

[0105] Figure 4 A cross-sectional view along line 4-4 according to Figure 3 is shown;

[0106] Figure 5 A cross-sectional view along line 5-5 according to Figure 3 is shown;

[0107] Figure 6 An enlarged view of the abutting device according to Figure 4 is shown;

[0108] Figure 7 A cross-sectional view along line 7-7 according to Figure 6 is shown;

[0109] Figure 8 A cross-sectional view similar to Figure 6 is shown;

[0110] Figure 9 A cross-sectional view along line 9-9 according to Figure 8 is shown;

[0111] Figure 10 A cross-sectional view along line 9-9 according to Figure 8Cross-sectional view of line 10-10;

[0112] Figure 11 Shows a cross-sectional view along line 11-11 according to Figure 8 ;

[0113] Figure 12 Shows a cross-sectional view along line 12-12 according to Figure 8 ;

[0114] Figure 13 Shows a view similar to Figure 4 wherein, by manipulating the joystick, it is deflected from the neutral position;

[0115] Figure 14 Shows a view similar to Figure 5 wherein the joystick is manipulated;

[0116] Figure 15 Shows a view similar to Figure 4 wherein, by manipulating the lowering lever, it is deflected from the neutral position;

[0117] Figure 16 Shows a view similar to Figure 5 wherein the lowering lever is manipulated;

[0118] Figure 17 Shows a view similar to Figure 4 wherein, by manipulating the release lever, it is deflected from the neutral position; and

[0119] Figure 18 Shows a view similar to Figure 5 wherein the release lever is manipulated. Detailed Description

[0120] The lifting tongs are used to lift a load / workpiece especially against the direction of gravity. The application field of the lifting tongs is similar to that of an automotive jack.

[0121] In Figures 1 to 16 the embodiment of the lifting tongs according to the invention, shown and labeled 10, not only has a lifting function but also has a clamping function after being modified. In the figure, the lifting tongs 10 show their lifting function. The clamping function will be explained below.

[0122] The lifting tongs 10 include a slide rail 12. The slide rail 12 is straight and has a longitudinal axis 14 (for example, see Figure 4 ).

[0123] The slide rail 12 has a first narrow side 16 and a second narrow side 18 opposite thereto. Between the first narrow side 16 and the second narrow side 18, there is a first wide side 20 and a second wide side 22 opposite thereto.

[0124] In the illustrated embodiment, the slide rail 12 is profiled. The slide rail is provided, for example, with concave bends on the wide sides 20, 22.

[0125] In one embodiment, the slide rail 12 is made of a metallic material.

[0126] A support device 24 is arranged on the slide rail 12, via which the lifting tongs 10 can be placed on the base part 26 (see Figure 3 ). In the illustrated embodiment, the support device 24 is arranged at the end of the slide rail 12.

[0127] The support device 24 has a first tab 28 and a second tab 30 spaced apart from each other. There is a free space 32 between the first tab 28 and the second tab 30.

[0128] The first tab 28 and the second tab 30 have a forked arrangement parallel to each other. They are oriented perpendicular to the longitudinal axis 14 of the slide rail 12 and point away from the first narrow side 16.

[0129] A first half-space 34 and a second half-space 36 can be assigned to the lifting tongs 10. The first half-space 34 and the second half-space 36 are separated by the slide rail 12. The separating plane 38 between the first half-space 34 and the second half-space 36 is oriented parallel to the longitudinal axis 14 of the slide rail 12. The first tab 28 and the second tab 30 are oriented perpendicular to this separating plane 38.

[0130] The first tab 28 and the second tab 30 are located in the first half-space 34.

[0131] In one embodiment, the support device 24 includes a plate 40. The plate 40 has a flat underside 42 for placing the support device 24 on the base part 26.

[0132] The plate 40 includes a fixing region 44 and the tabs 28, 30, where, in particular, the tabs 28, 30 are integrally formed on the fixing region 44.

[0133] In one embodiment, the plate 40 is made of a metallic material.

[0134] A holder 46 for the slide rail 12 is fixed on the fixing region 44. In one embodiment, the holder 46 is made of a plastic material.

[0135] A vaulted region 48 with a recess 50 is arranged on the holder 46. The slide rail 12 is inserted into the recess 50 and fixed to the fixing region 44 (and possibly also to the plate 40).

[0136] The support device 24 includes a region at the fixing region 44 and the plate 40, which region is located in the second half-space 36.

[0137] The slide rail 12 is oriented perpendicular to the plate 40 (and also perpendicular to the tabs 28, 30).

[0138] The vaulted region 48 completely surrounds the slide rail 12.

[0139] The abutment device 52 is positioned movably on the slide rail 12 (in the case of corresponding operator intervention). The abutment device 52 can slide on the slide rail 12.

[0140] The abutment device 52 includes a housing 54. In one embodiment, the housing 54 is constructed with a double shell having a first part 56a and a second part 56b. The important components of the lifting tongs (especially the pushing device, the locking device) are arranged in the housing 54 in a protected manner. This will be explained in more detail below.

[0141] The housing 54 has a first through recess 58 and a spaced-apart second through recess 60. The first recess 58 (in terms of the lifting function) faces the support device 24. The second recess 60 faces away from the support device 24. The slide rail 12 is guided through the housing 54 by means of the first recess 58 and the second recess 60. By means of the first recess 58 and the second recess 60, a sliding movement support is also formed.

[0142] The abutment device 52 can move on the slide rail 12 with a movement axis 62. The movement axis 62 is parallel to the longitudinal axis 14 of the slide rail 12 or coincides with this longitudinal axis.

[0143] On the housing 54 of the abutment device 52, there is arranged (at least one) abutment element 64 for the workpiece. The abutment element 64 is oriented at least approximately parallel to the tabs 28, 30. By means of the movability of the abutment device 52 on the slide rail 12, the spacing D in the spacing direction 66 between the abutment element 64 and the tabs 28, 30 (and thus the support device 24) can be varied. The spacing direction 66 is parallel to the movement axis 62.

[0144] The abutment element 64 is arranged in the region 68 of the housing 54 having an end 70, and the end 70 in turn faces the support device 24.

[0145] The abutment element 64 is positioned in the first half-space 34 in the same way as the tabs 28 and 30 of the support device 24.

[0146] It is provided that when the abutment device 52 is pushed towards the support device 24 and the spacing D is minimized and especially zero, the abutment element 64 is positioned in the free space 32.

[0147] In the region 68, the housing 54 has a notch 72 which matches the vaulted region 48 of the support device 24, so that the abutment element 64 can be placed in the lowest positioning in the free space 32.

[0148] In one embodiment, the abutting element 64 has the same thickness as the first tab 28 and the second tab 30 (parallel to the longitudinal axis 14).

[0149] In one embodiment, the abutting element 64 is formed by a kink element 74. The kink element has a first region 76 and a second region 78. The first region 76 is oriented perpendicular to the longitudinal axis 14 of the slide rail 12 and extends away from the housing 54. The first region 76 is for abutting against the workpiece.

[0150] The second region 78 forms an obtuse angle 80 with the first region 76. The second region 78 is fixed to the housing 54.

[0151] In particular, the second region 78 of the kink element 74 is positioned on a housing region 82 that bounds the notch 72.

[0152] The housing 54 has a wall portion 83 (see Figure 1 ), and the first region 76 of the kink element 74 and the abutting element 64 thereon project from this wall portion and in particular project perpendicularly. In particular, the wall portion 83 is formed flat and is oriented parallel to the longitudinal axis 14.

[0153] A joystick 84 is supported on the abutting device 52 (on the housing 54) in a manner that it can swing via a swing bearing 86. The swing axis 88 of the swing bearing 86 is oriented perpendicular to the slide rail 12 (perpendicular to the longitudinal axis 14 of the slide rail) and in particular is parallel to the tabs 28, 30 of the abutting element 64 or the first region 76.

[0154] In particular, the swing bearing 86 is arranged such that the swing axis 88 passes through the slide rail 12. The swing axis 88 can also be positioned in front of the slide rail 12.

[0155] In one embodiment, the swing bearing 86 is formed by arranging an axle end 87 (see Figure 7 ) perpendicularly protruding on the joystick 84, and the axle end is supported in a corresponding receiving portion in the housing 54 about the swing axis 88. The corresponding receiving portions for the axle end 87 respectively point to the wide sides 20 and 22 of the slide rail 12.

[0156] The joystick 84 is oriented away from the housing 54 and is positioned in the second half-space 36. The joystick projects from the housing 54 away from the slide rail 12 and transversely to the slide rail 12.

[0157] In Figures 1 to 12 the neutral position of the joystick 84 is shown, in which the joystick is not pivoted relative to the housing 54.

[0158] In one embodiment, the joystick 84 includes a swing element 90. The swing element 90 is made of a metallic material in particular. A handle housing 92 is firmly connected to the swing element 90. The handle housing 92 covers the swing element 90 in the upward direction. In the top view according to Figure 2 the handle housing 92 is visible, while the swing element 90 is covered.

[0159] The swing bearing 86 is arranged in the upper region of the abutment device 52 with respect to the support device 24. The swing bearing 86 is closer to the second recess 60 than to the first recess 58.

[0160] Furthermore, a mating element 94 for the joystick 84 is also rigidly arranged on the housing 54. The mating element 94 extends away from the housing 54 and is positioned in the second half-space 36.

[0161] The mating element 94 ergonomically aligns the joystick 84.

[0162] The mating element 94 and the joystick 84 are configured and matched to each other such that the operator can press the inner side of the palm of the hand with which he grasps against the mating element 94, and can hook the joystick 84 with the thenar of the hand with which he grasps, and can also "pump" the swinging movement of the joystick 84 towards the mating element 94 by the movement of the thenar (along with the movement of the thenar muscle).

[0163] The corresponding swinging directions are indicated by reference numeral 96 in Figure 4 and Figure 5 by the drawings.

[0164] The mating element 94 (with respect to the lifting function) is closer to the support device 24 than the joystick 84.

[0165] With respect to the movement axis 62, the mating element 94 is positioned between the joystick 84 and the support device 24.

[0166] Like the joystick 84, the mating element 94 extends laterally away from the housing 54 with respect to the longitudinal axis 14 of the slide rail 12, and extends away from the first narrow side 16 of the slide rail 12 here.

[0167] The mating element 94 has a housing 98, and the housing has an internal space 100.

[0168] The internal space 100 is open towards the joystick 84. The housing 98 is closed towards the support device 24.

[0169] Arranged in the housing 54 and hereby on the slide rail 12 is a locking device 102. The locking device 102 (in the lifting function of the lifting tongs 10) prevents the abutment device 52 from moving towards the support device 24; hereby, when operating the control lever 84, the movement of the abutment device 52 on the slide rail 12 can only take place in one direction, namely in the case of increasing the spacing D away from the support device 24.

[0170] In one embodiment, the locking device 102 includes a plurality of locking elements 104, which are arranged in a locking element group 106 in the housing 54.

[0171] The locking element 104b is configured as a thin plate (a "locking plate") made of a metal material in particular. The locking elements 104 of the locking element group 106 are in contact with each other.

[0172] The locking elements 104 of the locking element group 106 have through recesses 108, through which the slide rail 12 extends.

[0173] The locking element group 106 is positioned in the housing 54 adjacent to the first recess 58; with respect to the movement axis 62, the locking element group 106 is closer to the first recess 58 than to the second recess 60.

[0174] The locking element group 106 is supported on the abutment device 52 within the housing 54 by a spring device 110.

[0175] In the embodiment shown, for example, in Figure 4 、 Figure 5 the spring device 110 includes four springs (only two springs are visible in the figure), which are configured to be the same, for example, however, the respective support points 112 of the springs of the spring device 110 are at different heights with respect to the longitudinal axis 14, but in principle only one spring can also be provided, which is arranged around the slide rail.

[0176] As shown in Figure 4 and Figure 5 in the "normal state" of the spring device 110, the spring device 110 positions the locking element group 106 in an angular position with respect to the normal plane of the longitudinal axis 14 of the slide rail 12 (positioned at an angle 114). Thereby, the locking elements 104 of the locking element group 106 are wedged obliquely with the slide rail 12. The movement of the abutment device 52 towards the support device 24 is blocked by this oblique wedging.

[0177] In principle, this oblique wedging can also be achieved when the support points 112 of the springs of the spring device 110 are, for example, at the same level, but different springs are used.

[0178] A stop 116 is formed on the abutment device 52. By applying a force to the locking element group 106, the locking element group can be pressed against the stop 116. Thus, when the locking element group 106 abuts against the stop 116, the locking is especially completely cancelled; the locking elements 104 of the locking element group 106 no longer engage diagonally with the slide rail 12, and the abutment device 52 can move freely on the slide rail 12.

[0179] The stop 116 is especially located in the region of the first recess 58. The stop 116 is defined such that the locking element 104 can be pressed against the stop and the locking is cancelled when reaching (or even before reaching) the stop 116.

[0180] The locking element group 106 is pivotally positioned in the corresponding receiving space 118 of the housing 54. In the "initial state" without an externally applied force, the locking element group 106 pivots ( Figure 4 、 Figure 5 ) such that the locking is achieved due to the diagonal engagement. The locking element group 106 can pivot against the force of the spring device 110 and press against the stop 116 thereby, so that the diagonal engagement and thus the locking are cancelled.

[0181] The release lever 120 is assigned to the locking element group 106. The release lever 120 is directly connected to a locking element 124 via a tab 122, wherein the locking element 124 is the uppermost locking element of the locking element group 106 and has the largest spacing from the support device 24.

[0182] The tab 122 of the release lever 120 is positioned in the second half-space 36.

[0183] The operator can press the release lever 120 in the swinging direction 126. Thereby, the release lever 120 acts on the locking element group 106 via the tab 122. In overcoming the spring force of the spring device 110, which is realized by the operator, the locking element group can swing towards the stop 116 and press against the stop 116. As described above, the locking function of the locking device 102 is cancelled thereby. This will be described in detail below. The stop 116 defines the maximum deflection of the release lever 120.

[0184] The lifting tongs 10 have a first motion mechanism 128, by means of which the abutment device 52 can move upward away from the support device 24 on the slide rail 12 when the joystick 84 swings in the swinging direction 96.

[0185] The first motion mechanism 128 is a "pumping mechanism", which will be described below.

[0186] The first motion mechanism 128 includes a pushing device 130 having a plurality of pushing elements (seeFigure 6 ). The displacement elements 132 are configured as thin plates and are in particular made of a metallic material ("displacement plates"). They have through-going recesses (see Figure 9 ), through which the slide rail 12 projects. These displacement elements 132 are arranged in the housing 54 as a displacement element group 134. The adjacent displacement elements 132 in the displacement element group 134 are in contact with one another.

[0187] The displacement element group 134 is arranged in the housing 54 in the region of the second recess 60.

[0188] In the neutral position of the displacement element group 134 in which the joystick 84 is not actuated ( Figures 4 to 6 ), the displacement elements 132 of the displacement element group 134 enable the slide rail 12 to move relative to the displacement elements. For example, when the release lever 120 is actuated and the locking of the locking device 102 is cancelled, the abutment device 52 can travel freely along the slide rail 12 without being hindered by the displacement element group 134.

[0189] The displacement element group 134 has a lower side 136 and an upper side 138 facing away from the lower side. The lower side 136 faces the locking device 102. The upper side 138 faces the second recess 60.

[0190] The joystick 84 has an action area 140 by means of which the joystick 84 can act on the displacement element group at the upper side 138 of the displacement element group.

[0191] The action area 140 is spaced apart from the swivel bearing 86 and is in particular located in the second half-space 36. The action area is located within the housing 54.

[0192] The displacement element group 134 is positioned in the housing 54 in a swingable and movable manner.

[0193] The action area 140 is designed such that when the joystick 84 swings in the swing direction 96, the displacement element group 134 is first pivoted out of the neutral position by the action of the joystick 84 and engages obliquely with the slide rail 12 here. In addition, the displacement element group 134 moves within the housing 54. Due to the oblique engagement of the displacement elements 132 with the slide rail 12, the abutment device 52 is thus caused to move and moves away from the support device 24 here.

[0194] The respective swing direction of the displacement element group 134 is opposite to the angle 114 of the locking device 102 with respect to the sign of the angle. Thereby, the abutment device 52 can move upwards away from the support device 24 without being locked by the locking device 102 against movability in this direction. However, the locking device 102 prevents movability downwards towards the support device 24.

[0195] The displacement element group 134 is supported in the housing 54 by a spring device 142. The spring device is supported on an intermediate element 144 here, which will be described in detail below. In one embodiment, the spring device 142 includes two springs. A support element 146 is arranged on the lower side 136 of the displacement element group 134, and the support element has receiving pins for the springs of the spring device 142.

[0196] A support element 148 is also arranged on the intermediate element, and the support element receives the corresponding spring pins.

[0197] In an alternative embodiment, it is provided that the spring device 142 includes a single spring, and the slide rail 12 passes through the spring. In this embodiment, the support elements 146 and 148 are not required.

[0198] The spring device 142 exerts a force on the displacement element group 134 such that the displacement element 132 remains in the neutral position without operating the joystick 84. When the joystick 84 is operated by swinging in the swing direction 96, the springs of the spring device 142 are compressed. As described above, this will cause the displacement element 132 to be skew-locked with the slide rail 12 and the displacement element 132 to move relative to the housing 54.

[0199] When the joystick 84 is released, it causes the reset of the spring device 142. The joystick 84 returns to its neutral position ( Figures 4 to 6 ) and the displacement element group 134 returns to its neutral position.

[0200] On the housing 54, a stop is assigned to the joystick 84 so that the joystick can only pivot to a specific swing angle. When this stop is reached, it is no longer possible to pivot further towards the mating element 94. Thereby, a stepwise movement of the abutting device 52 on the slide rail 12 is obtained. The joystick 84 pivots to the stop. Here, the displacement element group 134 is skew-locked and the distance between the abutting element 64 and the support device 134 increases. When the operator releases the joystick 84, due to the spring force of the spring device 142, the joystick returns to the neutral position. Usually, the operator needs to perform the swinging movement and the return movement multiple times, and thereby the abutting element 64 is gradually (in a quantitative manner) lifted relative to the support device 24. This is a pumping mode, in which the pivoting and releasing process of the joystick 84 must be repeated while the abutting device 52 moves stepwise correspondingly on the slide rail 12 in order to achieve a "greater" stroke.

[0201] The intermediate element 144 is configured as a thin plate and is especially made of a metallic material ("metal sheet"). It has a through recess, and the slide rail 12 passes through the recess.

[0202] The lifting tongs 10 include a second movement mechanism 150 (seeFigure 6 ).

[0203] The second kinematic device 150 serves to gradually lower the contact device 52 (in the lifting function of the lifting clamp 10 ) toward the supporting device 24 .

[0204] The second movement mechanism 150 includes a descending rod 152 .

[0205] The lowering rod 152 is supported on the housing 54 in a rotatable and movable manner via a rotationally movable support portion 154. The rotationally movable support portion 154 (see also Figure 8 ) has a pivot axis 156 parallel to the pivot axis 88 of the actuating lever 84. The pivot axis 156 is perpendicular to the broad sides 20, 22 of the guide rail 12 and perpendicular to the longitudinal axis 14 of the guide rail 12. The pivot axis 156 is parallel to the tabs 28, 30 or is in the first region 76 of the element.

[0206] The movement direction of the rotationally movable bearing 154 for the displacement of the lowering rod 152 in the housing 54 is parallel to the displacement axis 62 or at least has a component parallel to the displacement axis 62 .

[0207] In one embodiment, the rotationally movable support 154 is formed by a long hole 158 positioned in the housing 54 and a pin 160 disposed on the lowering rod 152 (see Figure 8 ).

[0208] The pivotable bearing 154 is positioned in the housing 54 facing the first narrow side 16 of the guide rail 12 . The pivotable bearing 154 is located in the first half space 34 .

[0209] The actuating lever 84 and the engaging element 94 face their operator side toward the second narrow side 18 of the guide rail 12 and away from the first narrow side 16 . In this sense, the pivoting bearing 154 and thus the slot 158 face away from the second narrow side 18 of the guide rail 12 and toward the first narrow side 16 .

[0210] In one embodiment, in the region of the rotationally movable bearing 154, (at least one) roller 162 is arranged on the lowering rod 152. The roller 162 is in particular rotatable. The lowering element 152 can roll via the roller in this region on a corresponding guide in the housing 54 or on the guide rail 12, in particular in order to improve the guide accuracy for the movement guide or to reduce the guide resistance.

[0211] The lowering rod 152 includes a region 164, which is positioned on the slide rail 12 and at which the pin 160 is also arranged. The region 164 is designed in a fork shape. The region includes a first connecting piece 166 and a second connecting piece 168 (see Figure 11), the slide rail 12 is positioned between these two tabs. The slide rail 12 passes through the intermediate space between the first tab 166 and the second tab 168.

[0212] Furthermore, in one embodiment, the release lever 120 passes through the region 164, that is, it passes between the first tab 166 and the second tab 168.

[0213] The region 164 having the first tab 166 and the second tab 168 extends from the first half-space 34 (the region in front of the first narrow side 16 of the slide rail 12) via the slide rail 12 towards the mating element 94 into the second half-space 36.

[0214] The release lever 120 passes through the region 164 of the lowering lever 152 in the second half-space 36.

[0215] Connecting elements 170 are arranged on the first tab 166 and the second tab 168, and these connecting elements connect the two tabs to each other. A actuating element 172 having an actuating surface 174 is mounted on the connecting element 170.

[0216] The actuating surface 174 is configured to be actuated by an operator, in particular by applying pressure in the direction towards the mating element 94.

[0217] With respect to the movement axis 62, the lowering lever 152 is positioned between the mating element 94 and the actuating lever 84.

[0218] When not actuated, the connecting element 170 is at least partially positioned in the inner space 100 of the housing 98 of the mating element 94, and the actuating element 172 is also at least partially positioned in the same way.

[0219] The release lever 120 also has an actuating element 176 with a second actuating surface 178.

[0220] The second actuating surface 178 is configured such that an operator can apply pressure to this second actuating surface so that the actuating element 176 is pressed in the direction towards the mating element 94, and thereby the locking of the locking device 102 can be canceled by pivoting towards the corresponding stop 116.

[0221] The actuating element 176 having the second actuating surface 178 (with respect to the movement axis 62) is positioned between the actuating lever 84 and the mating element 94.

[0222] With respect to the direction 180 perpendicular to the slide rail 12 (perpendicular to its longitudinal axis 14) and thus extending between the first narrow side 16 and the second narrow side 18, the second actuating surface 178 is closer to the slide rail 12 than the first actuating surface 174 of the lowering lever 152. This arrangement of the second actuating surface 178 makes it in principle more difficult for the operator to reach than the first actuating surface 174, at least when the operator holds with the palm.

[0223] The second control surface 178 is closer to the housing 54 than the first control surface 174.

[0224] The first control surface 174 and the second control surface 178 are oriented flush with respect to line 182, which is oriented transversely to the longitudinal axis 14 of the slide rail 12 (see Figure 6 ). In one embodiment, at least when neither the lowering lever 152 nor the release lever 120 is actuated, the line 182 is oriented perpendicular to the longitudinal axis 14 (see Figure 6 ).

[0225] The lowering lever 152 and the release lever 120 are arranged one behind the other with respect to direction 180. This arrangement one behind the other is achieved in particular by the intermediate space between the first tab 166 and the second tab 168. The tab 122 of the release lever 120 extends through the region between the first tab 166 and the second tab 168 of the lowering lever 152.

[0226] In principle, it is also possible that the release lever 120 has correspondingly spaced tabs, through which the lowering lever 152 then extends.

[0227] The release lever 120 and the lowering lever 152 are configured such that when the operator presses the palm of the grasping hand against the mating element 94, the operator can in principle reach and effect a thumb press via the thumb.

[0228] In one embodiment (see Figure 6 ), with respect to the movement axis 62, the release lever 120 is closer to the mating element 94 than to the joystick 84.

[0229] In particular, it is also provided that with respect to the movement axis 62, the lowering lever 152 is closer to the mating element 94 than to the joystick 84.

[0230] The lowering lever 152 has a first action area 184. The first action area 184 is arranged at the area 164 and acts on the intermediate element 144. When the lowering lever 152 swings in the swinging direction 186 ( Figure 4 and Figure 5 ), in particular in the first half-space 34, the first action area acting on the intermediate element 144 causes the intermediate element 144 to be wedged obliquely with the slide rail 12.

[0231] The lowering lever 152 has a second action area 188, by means of which it acts on the locking element set 106.

[0232] With respect to the movement axis 62, the first action area 184 and the second action area 188 face away from each other. The first action area 184 points to the pushing element set 134, and the first action area points to the second recess 60.

[0233] The second acting area 188 points to the blocking element group 106 and, in this case, points in the direction of the first recess 58. The second acting area 188 (in the lifting function) points to the supporting device 24.

[0234] The lowering lever 152 is configured such that the lowering lever is supported on the blocking element group 106 via its second acting area 188 and, in this case, is supported on the uppermost blocking element 124.

[0235] This enables the intermediate element 144 to swing out of the neutral position and engage obliquely. Then, when the lowering lever 152 is manipulated in the swinging direction 186, the intermediate element 146 moves by being supported on the rotational movement support 154 and in a movable support manner and, in this case, moves away from the blocking device 102 in the direction of the pushing element group 134.

[0236] At the same time, due to the action of the second acting area 188 on the blocking element group 106, the blocking element group pivots, thereby releasing the movability of the abutting device 52; the blocking action of the blocking device 102 is cancelled.

[0237] The action of the lowering lever 152 on the blocking device 102 by means of the second acting area 188 is such here that even when the lowering lever 152 is deflected maximally, the stop 116 is not reached. The stop 116 of the blocking element group 106 can only be reached by correspondingly manipulating the release lever 120.

[0238] As described above, when the lowering lever 152 is manipulated in the swinging direction 186, since the second acting area 188 is supported on the blocking element group 106, the intermediate element 144 engages obliquely with the slide rail 12. At the same time, the blocking element group 106 swings partially (to the extent that the stop 116 is not reached), and the lowering lever 152 pushes the intermediate element 144 away from the supporting device 24, i.e., upward, by means of its area 164. Due to the oblique engagement of the intermediate element 144, the abutting element 64 descends toward the supporting device 24, i.e., the distance D decreases. This descent only occurs during the swinging manipulation of the lowering lever 152.

[0239] A stop 190 is arranged on the mating element 94 and especially on the inner side of the housing 98, and this stop defines the maximum swinging angle of the lowering lever 152 about the swinging axis 156. Thereby, the stop 190 predetermines the maximum swinging angle of the blocking element group 106. As described above, this maximum swinging angle does not reach the stop 116.

[0240] During the manipulation of the lowering lever 152, the abutting device 52 descends finitely toward the supporting device 24. This descent stops at the latest when the lowering lever 152 reaches the stop 190.

[0241] The spring device 142 also acts on the intermediate element 144. The spring device 142 is a common spring device for the pushing device 130 and the intermediate element 144. The spring force of the spring device 142 acts on the intermediate element 144 such that this spring force seeks to keep the intermediate element in its neutral position. When the lowering lever 152 swings in the swinging direction 18 and effects the swinging of the intermediate element (for camming engagement with the slide rail 12) via the first action area 184, one or more springs of the spring device 142 are compressed. The operator must overcome the spring force of the spring device 142 when manipulating the lowering element 152.

[0242] When the operator releases the lowering lever 152, the spring device 142 causes the intermediate element 144 to return again to its initial position (neutral position) without camming engagement with the slide rail 12. Then, the lowering lever 152 also returns to its initial position.

[0243] In order to achieve a greater stroke for lowering by manipulating the lowering lever 152, the operator must repeat the manipulation of the lowering lever 152 once (swing in the swinging direction 186, then release by the operator after reaching the stop 190 and return to the starting position). In the case of multiple manipulations, a lowering (the abutment device 152 moves towards the support device 24) is effected that is essentially delimited by the length of the oblong hole 158. In the case of multiple manipulations of the lowering lever 152, the abutment device 152 is caused to lower step by step by a kind of pumping mechanism and analogous to the manipulation of the actuating lever 84 when the abutment device 52 is lifted from the support device 24.

[0244] In Figures 7 to 12 the neutral state of the lifting tongs 10 is shown. The actuating lever 84, the lowering lever 152, and the release lever 120 are all not manipulated.

[0245] In this neutral state 192 (see in particular Figure 4 and Figure 5 ), the locking device 102 is effective with respect to the locking action on the movability with respect to the slide rail 12. The locking element 104 of the locking element group 106 cams engage with the slide rail 12 and holds the abutment device 52 at a predetermined height above the support device 24. The movability of the abutment device 52 towards the support device 24 is locked.

[0246] In the neutral state 192, the pushing element group 134 and the intermediate element 144 are in the neutral state.

[0247] In Figure 4 the locking of the movability downwards (towards the support device 24) is indicated by an arrow 194 (''locking arrow'') provided with an X.

[0248] If, starting from the neutral position 192, the actuation lever 84 is actuated by pivoting in the swivel direction 96 and then releasing it ( Figure 13 , Figure 14 ), the operating lever 84 acts on the push element group 134 when pivoting from the neutral state and causes an oblique clamping with the slide rail 12 ( Figure 13 , Figure 14 ). Furthermore, a displacement of the push element group 134 within the housing 54 of the contact device 52 is caused.

[0249] The intermediate element 144 is maintained in a neutral state.

[0250] The blocking element assembly 106 remains in its blocking position.

[0251] This movement of the push element group 134 within the housing 54 ( Figure 13 , Figure 14 ) Due to the oblique clamping with the slide rail 12, the abutment element 64 causes a relative movement in the upward direction away from the support device 24, which Figure 13 In the figure, the arrow with 196 (“lifting arrow”) is used to indicate this. This results in a lifting function. The workpiece that is resting on the rest element 64 and here on the side facing away from the support device 24 is lifted away from the support device 24.

[0252] The actuation of the actuation lever 84 causes the actuator to pivot in the swivel direction 96 to a stop, and then the operator releases the actuation lever 84, and the actuation lever 84 is reset to its neutral position due to the spring force of the spring device 142. Thus, the operator can actuate the actuation lever 84 multiple times, and each actuation causes a stepwise lift (in Figure 13 In the figure, there is a pumping mechanism.

[0253] The sliding of the abutment device 52 downward toward the support device 24 is blocked by the blocking element group 106, which prohibits the movement of the abutment device 52 in this direction (downward), but allows the abutment device 52 to move upward (when the spacing D is increased). The intermediate element 144 has no effect in this process.

[0254] When the joystick 84 is in the neutral state, the operator presses the first operating surface 174 to swing the lowering rod 152 in the swing direction 186 ( Figure 15 , Figure 16 ), as described above, the blocking element group 106 pivots without reaching the stop 116. This cancels the blocking effect of the blocking device 102. At the same time, the first action area 184 acts on the intermediate element 144 and causes it to obliquely engage with the slide rail 12. In addition, the intermediate element 144 moves toward the push element group 134 within the housing 54.

[0255] This causes the abutment device 52 to descend toward the support device 24. The spacing D decreases. This descent takes place here only during the actuation of the lowering lever 152, since the locking element set 106 still always has a certain locking effect in particular.

[0256] Figure 15 This descent is indicated by the “lowering arrow” 198 therein. During this slow, step-by-step descent, the displacing element set 134 remains in its neutral position.

[0257] If the operator releases the lowering lever 152 after reaching the stop 190, the spring device 142 ensures that the intermediate element 144 returns to the neutral position. If the operator actuates (“pumps”) the lowering lever 152 accordingly several times, a step-by-step descent or a slow descent takes place, which is Figure 15 indicated by the arrow 200 therein.

[0258] Via the second movement mechanism 150 having the intermediate element 144, a controlled descent of the abutment element 64 toward the support device 24 can be achieved even when a load (workpiece) abuts on the upper side of the abutment element 64.

[0259] The lifting tongs 10 have a third movement mechanism 202, which includes a release lever 120. The release lever 120 acts directly on the locking element set 106 by means of the tab 122.

[0260] When the release lever 120 (especially when the operating lever 84 and the lowering lever 152 are in the neutral position) pivots in the pivoting direction 126 toward the mating element 94 ( Figure 17 , Figure 18 ) and pivots with a corresponding force, the locking element set 106 is pressed against the stop 116 ( Figure 17 , Figure 18 ). Thereby, the locking element set 106 pivots relative to the slide rail 12, such that the skew locking is canceled.

[0261] The displacing element set 134 and the intermediate element 144 are in their neutral positions. Thereby, the abutment device 52 can move freely on the slide rail 12. As Figure 17 , Figure 18 shown therein, the abutment device 52 can move toward the support device 24. However, due to the free mobility, as long as the release lever 120 is pressed and in particular the locking element set 106 is pressed against the stop 116, the abutment device 52 can also always move away from the support device 24.

[0262] When the release lever 120 is released, the spring device 110 comes into play and places the locking element set 106 back into its locking position, which locks the mobility of the abutment device 52 on the slide rail 12.

[0263] When the release lever 120 is pressed, the movement of the abutting device 52 is not a stepwise movement.

[0264] For example, if a load abuts on the abutting element 64 from above and the release lever 120 is pressed, the principle of gravity can in principle cause the abutting device 52 to "rush down".

[0265] In the solution according to the present invention, it is provided that the lowering lever 152 and the release lever 120 are located between the joystick 84 and the mating element 94. Thereby, in the "normal lifting operation" of using the joystick 84, an unintentional triggering of a stepwise lowering by means of the second movement mechanism 150 or a rapid lowering by means of the third movement mechanism 202 is effectively prevented.

[0266] In addition, when the operator holds the joystick 84 and the mating element 94 with the grasping hand, due to the arrangement of the release lever 120 being closer to the slide rail 12, the release lever is difficult to reach, thereby effectively preventing an unintentional trigger.

[0267] If necessary, the operator can here especially manipulate the lowering lever 152 and the release lever 120 by pressing with the thumb in the direction of the mating element 94.

[0268] The first movement mechanism 128, the second movement mechanism 150 and the third movement mechanism 202 can be implemented with thin plates, which are in principle simply designed and especially sheet metal.

[0269] In the case of a simply designed structure of the lowering lever 152, it causes a skew locking and movement via the first action area 184 and a (quantitative) cancellation of the locking of the locking device 102 via the second action area 188.

[0270] The corresponding components of the first movement mechanism 128 and the second movement mechanism 150 are protectedly arranged in the housing 54.

[0271] The locking element group 106 is also protectedly arranged in the housing 54.

[0272] The components within the housing (locking element 104, pushing element 132, intermediate element 144, and spring devices 142 and 110) are arranged in the housing 54 in a loss-preventing manner and functionally positioned. This enables the housing 54 (abutting device 52) to be removed from the slide rail 12 (when the release lever 120 is actuated). The housing 54 can also be put on the slide rail 12 in a reverse orientation compared to the illustration. In this reverse mounting, the housing 54 is put on the slide rail 12 such that the second recess 60 is closer to the supporting device 24 than the first recess 58. Then, by the pumping movement of the lever 84, the abutting element 64 can be gradually moved towards the supporting device 24. Thereby, the distance D is reduced. One or more workpieces can thus be clamped between the abutting element 64 and the supporting device 24.

[0273] In this clamping function of the lifting tongs 10, the locking device 102 enables the movement of the abutting element 64 towards the supporting device 24. In this clamping function of the lifting tongs 10, the function of the lifting tongs 10 is similar to that of a conventional clamping tong.

[0274] According to the present invention, an optimized-operating lifting tongs 10 is provided. This results in a simple-structured design, in which, in particular, the functional components can be positioned in the housing 54 in a protected manner.

[0275] Since the release lever 120 and the lowering lever 152 are arranged one after the other, they are not equivalent to the operator, and in particular, accidental actuation of the release lever 120 can be effectively prevented. This can also be supported by the fact that the first operating surface 174 and the second operating surface 178 are designed differently and, for example, have different color designs.

[0276] The lifting tongs 10 can be switched from the lifting function to the clamping function and vice versa.

[0277] The lifting tongs 10 can be operated with one hand. The lifting of the abutting element 64 from the supporting device 24 is achieved via the first motion mechanism 128 by the grasping hand of the operator.

[0278] Since the operating lever 84 is located above in the lifting function (the mating element 94 is arranged between the operating lever 84 and the supporting device 24), in principle, the operating lever 84 can also be operated by the operator's foot.

[0279] List of reference numerals

[0280] 10 Lifting tongs

[0281] 12 Slide rail

[0282] 14 Longitudinal axis

[0283] 16 First narrow side

[0284] 18 The second narrow side

[0285] 20 The first wide side

[0286] 22 The second wide side

[0287] 24 The supporting device

[0288] 26 The base part

[0289] 28 The first tab

[0290] 30 The second tab

[0291] 32 The free space

[0292] 34 The first half space

[0293] 36 The second half space

[0294] 38 The dividing plane

[0295] 40 The plate

[0296] 42 The lower side

[0297] 44 The fixed area

[0298] 46 The retainer

[0299] 48 The vault area

[0300] 50 The recess

[0301] 52 The abutting device

[0302] 54 The housing

[0303] 56a The first part

[0304] 56b The second part

[0305] 58 The first recess

[0306] 60 The second recess

[0307] 62 The moving axis

[0308] 64 The abutting element

[0309] 66 The spacing direction

[0310] 68 The area

[0311] 70 The end

[0312] 72 The notch

[0313] 74 The angled element

[0314] 76 The first area

[0315] 78 Second region

[0316] 80 Obtuse angle

[0317] 82 Housing region

[0318] 83 Wall portion

[0319] 84 Joystick

[0320] 86 Swivel bearing portion

[0321] 87 Shaft end

[0322] 88 Swivel axis

[0323] 90 Swivel element

[0324] 92 Handle housing

[0325] 94 Fitting element

[0326] 96 Swivel direction

[0327] 98 Housing

[0328] 100 Internal space

[0329] 102 Locking device

[0330] 104 Locking element

[0331] 106 Locking element group

[0332] 108 Recess

[0333] 110 Spring device

[0334] 112 Support point

[0335] 114 Angular position

[0336] 116 Stop

[0337] 118 Receiving space

[0338] 120 Release lever

[0339] 122 Tab

[0340] 124 Uppermost locking element

[0341] 126 Swivel direction

[0342] 128 First motion mechanism

[0343] 130 Pushing device

[0344] 132 Pushing element

[0345] 134 Pushing element group

[0346] Lower side of 136

[0347] Upper side of 138

[0348] Acting area of 140

[0349] Spring device of 142

[0350] Intermediate element of 144

[0351] Support element of 146

[0352] Support element of 148

[0353] Second motion mechanism of 150

[0354] Lowering rod of 152

[0355] Rotating and moving support part of 154

[0356] Swing axis of 156

[0357] Slot of 158

[0358] Pin of 160

[0359] Roller of 162

[0360] Area of 164

[0361] First tab of 166

[0362] Second tab of 168

[0363] Connecting element of 170

[0364] Operating element of 172

[0365] First operating surface of 174

[0366] Operating element of 176

[0367] Second operating surface of 178

[0368] Direction of 180

[0369] Line of 182

[0370] First acting area of 184

[0371] Swing direction of 186

[0372] Second acting area of 188

[0373] Stop of 190

[0374] Neutral state of 192

[0375] "Blocking lock arrow" of 194

[0376] "Lifting arrow" of 196

[0377] 197 Arrow

[0378] 198 “Down Arrow”

[0379] 200 Arrow

[0380] 202 Third Motion Mechanism

Claims

1. Lifting tongs, the lifting tongs comprising: Slide rail (12); supporting device (24), the supporting device is arranged on the slide rail (12), and the lifting tongs (10) can be placed on the base part (26) via the supporting device; abutting device (52), the abutting device is movably arranged on the slide rail (12), the abutting device has at least one abutting element (64) for the workpiece, wherein the moving axis (62) of the abutting device (52) on the slide rail (12) is parallel to the spacing direction (66) between the supporting device (24) and the at least one abutting element (64); first motion mechanism (128), the first motion mechanism has a pushing device (130), a lever (84) swingably arranged on the abutting device (52), and a mating element (94) firmly connected to the abutting device (52), wherein the lever (84) is coupled to the pushing device (130), and when the lever (84) swings during the lifting function of the lifting tongs (10), the spacing between the supporting device (24) and the at least one abutting element (64) gradually increases; second motion mechanism (150), the second motion mechanism has a lowering rod (152), wherein the lowering rod (152) is arranged on the abutting device (52), and by operating the lowering rod (152) during the lifting function, the spacing between the at least one abutting element (64) and the supporting device (24) gradually decreases; and third motion mechanism (202), the third motion mechanism has a release rod (120), wherein the release rod (120) is arranged on the abutting device (52), and by operating the release rod (120), the locking of the mobility of the at least one abutting device (52) on the slide rail (12) can be released, characterized by having at least one of the following: (i) The lowering rod (152) is positioned between the lever (84) and the mating element (94) with respect to the moving axis (62); (ii) The release rod (120) is positioned between the lever (84) and the mating element (94) with respect to the moving axis (62).

2. The lifting clamp according to claim 1, characterized in that, The lever (84) and the mating element (94) are arranged such that the mating element (94) and the lever (84) having the swingability of the lever (84) can be grasped by the operator with one hand, in particular, the mating element (94) is arranged to abut against the inner side of the palm, and the lever (84) is operated by the movement of the thenar.

3. The lifting clamp according to claim 1 or 2, characterized in that The lowering rod (152) has a first operating surface (174), and the release rod (120) has a second operating surface (178).

4. The lifting clamp according to claim 3, wherein Having at least one of the following: - With respect to the direction perpendicular to the slide rail (12), the second operating surface (178) is closer to the slide rail (12) than the first operating surface (174); - In a direction perpendicular to the slide rail (12), the first control surface (174) and the second control surface (178) are arranged one behind the other in sequence. - The first control surface (174) and the second control surface (178) are flush and located on a straight line, the straight line being oriented transversely to the slide rail (12), and the straight line intersecting the abutment device (52) and in particular the slide rail (12). - The first control surface (174) and / or the second control surface (178) are arranged and configured such that they can be manipulated by the operator's grasping hand and in particular by the thumb of the grasping hand. - In a direction perpendicular to the slide rail (12), the second control surface (178) is positioned between the slide rail (12) and the first control surface (174).

5. The lifting tongs according to any one of the preceding claims, characterized in that, The release lever (120) passes through the lowering lever (152), or the lowering lever (152) passes through the release lever (120).

6. The lifting clamp according to any one of the preceding claims, characterized in that Having at least one of the following: - The abutment device (52) has a first side and an opposite second side, wherein the slide rail (12) is positioned between the first side and the second side, and wherein the operating lever (84) and / or the mating element (94) project from the first side of the abutment device (52), while the at least one abutment element (64) projects from the second side of the abutment device (52). - The operating lever (84) and the mating element (94) project away from the slide rail (12) on the same side of the slide rail (12). - The release lever (120) projects away from the slide rail (12) on the same side of the slide rail (12) as the operating lever (84) and / or the mating element (94). - The lowering lever (152) projects away from the slide rail (12) on the same side of the slide rail (12) as the operating lever (84) and / or the mating element (94). - The mating element (94) and / or the operating lever (84), the release lever (120) and the lowering lever (152) are located in the central plane of the slide rail (12).

7. The lifting tongs according to any one of the preceding claims, characterized in that, The mating element (94) has a housing (98) with an internal space, wherein the lowering lever (152) and / or the release lever (120) are at least partially positioned in the internal space, and in particular, the inner side of the housing (98) forms a stop (190) for the release lever (120) and / or the lowering lever (152).

8. The lifting tongs according to any one of the preceding claims, characterized in that, For the lifting function, the mating element (94) is positioned between the support device (24) and the operating lever (84) with respect to the movement axis (62).

9. The lifting clamp according to any one of the preceding claims, characterized in that There is a locking device (102), which is arranged on the abutment device (52) and locks the mobility of the abutment device (52) towards the support device (24) when in the locked position during the lifting function.

10. The lifting clamp according to claim 9, characterized in that, The blocking device (102) includes at least one blocking element (104), which is movably arranged on the abutting device (52), and the slide rail (12) passes through the blocking element. The blocking element has at least one of the following: - The at least one blocking element (104) is configured to be sheet-like and is especially made of a metal material; - A blocking element group (106) with a plurality of blocking elements (104) is provided, and adjacent blocking elements (104) abut against each other; - In the blocking position, the at least one blocking element (104) is skew-locked relative to the slide rail (12) and blocks the mobility of the abutting device (52) towards the supporting device (24) during the lifting function, wherein the at least one blocking element (104) allows the abutting device (52) to move away from the supporting device (24); - The release lever (120) acts on the at least one blocking element (104), and the at least one blocking element (104) can be brought into the neutral position (192) by operating the release lever (120), and the blocking effect is cancelled in the neutral position; - The release lever (120) is directly connected to the at least one blocking element (104); - A spring device (110) is provided, which is supported on the at least one blocking element (104) and holds the at least one blocking element (104) in the blocking position when no force acts on the release lever (120); - The at least one blocking element (104) is arranged on the abutting device (52) in a swingable manner and especially only in a swingable manner and can swing relative to the slide rail (12); - The release lever (120) is arranged on the abutting device (52) in a swingable manner and especially only in a swingable manner; - With respect to the movement axis (62), the at least one blocking element (104) is arranged on the abutting device (52) closer to the at least one abutting element (64) than the pushing device (130) of the first movement mechanism (128); - With respect to the area around the slide rail (12), the at least one blocking element (104) is positioned between the lowering lever (152) and the supporting device (24) during the lifting function and with respect to the movement axis (62); - A stop (116) for the at least one blocking element (104) is provided on the abutting device (52), and the stop defines the maximum deflection of the at least one blocking element (104) for the blocking position, and the blocking position is cancelled when abutting against the stop (116).

11. The lifting clamp according to claim 10, characterized in that, The at least one blocking element (104) is positioned in the housing (54) of the abutment device (52), and in particular is positioned such that, with decoupling of the at least one blocking element (104) from the slide rail (12), the abutment device (52) can be removed from the slide rail (12), and with coupling of the at least one blocking element (104) to the slide rail (12), the abutment device (52) can be pushed onto the slide rail (12).

12. The lifting tongs according to any one of the preceding claims, characterized in that, The actuating device (130) has at least one actuating element (132) through which the slide rail (12) passes and onto which the actuating lever (84) acts, and the actuating element in particular has at least one of the following: - The at least one actuating element (132) is configured as a thin plate and is in particular made of a metallic material; - An actuating element group (134) with a plurality of actuating elements (132) is provided, wherein adjacent actuating elements (132) abut against each other; - The actuating lever (84) acts on the at least one actuating element (132) such that, upon actuation of the actuating lever (84), the at least one actuating element (132) engages with the slide rail (12) at an angle and moves towards the abutment device (52), and thus causes the abutment device (52) having the at least one abutment element (64) to move relative to the slide rail (12); - The at least one actuating element (132) is arranged on the abutment device (52) in a swingable and movable manner; - The at least one actuating element (132) can swing relative to the slide rail (12); - The at least one actuating element (132) is supported on the abutment device (52) by a spring device (142), wherein, in order to actuate the actuating lever (84) to swing towards the mating element (94), the spring force of the spring device (142) must be overcome, and releasing the actuating lever (84) causes the at least one actuating element (132) and in particular also the actuating lever (84) to return relative to the slide rail (12) to a neutral position (192); - With respect to the movement axis (62), the at least one actuating element (132) is closer to the actuating lever (84) than to the mating element (94); - With respect to the lifting function of the lifting tongs (10) and with respect to the movement axis (62), the locking device (102) is positioned between the supporting device (24) and the actuating device (130); - The angled engagement angle of the at least one actuating element (132) with the slide rail (12) and the angled engagement angle of the locking element (104) of the locking device (102) relative to the slide rail (12) have opposite signs.

13. The lifting clamp according to claim 12, characterized in that, The at least one displacement element (132) is positioned in the housing (54) of the abutment device (52), and is positioned in particular such that, with decoupling of the at least one displacement element (132) from the slide rail (12), the abutment device (52) can be removed from the slide rail (12), and with coupling of the at least one displacement element (132) to the slide rail (12), the abutment device (52) can be slipped onto the slide rail (12).

14. The lifting tongs according to any one of the preceding claims, characterized in that, The second movement mechanism (150) includes at least one intermediate element (144), the intermediate element being positioned on the abutment device (52), and the lowering lever (152) acting on the intermediate element.

15. The lifting clamp according to claim 14, characterized in that, The at least one intermediate element (144) is positioned between the displacement device (130) on which the joystick (84) acts and the locking device (102) on which the release lever (120) acts, with respect to the movement axis (62).

16. The lifting clamp according to claim 14 or 15, characterized in that, The at least one intermediate element (144) is positioned in the housing (54) of the abutment device (52), and is positioned in particular such that, with decoupling of the at least one intermediate element (144) from the slide rail (12), the abutment device (52) can be removed from the slide rail (12), and with coupling of the at least one intermediate element (144) to the slide rail (12), the abutment device (52) can be slipped onto the slide rail (12).

17. The lifting tongs according to any one of claims 14 to 16, characterized in that, The at least one intermediate element (144) has a recess through which the slide rail (12) passes.

18. The lifting clamp according to any one of claims 14 to 17, characterized in that, The at least one intermediate element (144) is positioned on the abutment device (52) in a swingable and movable manner, and in particular can swing relative to the slide rail (12).

19. The lifting tongs according to any one of claims 14 to 18, characterized in that having at least one of the following: - The at least one intermediate element (144) is configured as a thin plate and is in particular made of a metallic material; - The at least one intermediate element (144) has a neutral position (192) when the lowering lever (152) is not actuated, in which the slide rail (12) can move relative to the at least one intermediate element (144); - The at least one intermediate element (144) is skew-locked with the slide rail (12) and moves relative to the abutment device (52) by actuating the lowering lever (152), wherein the actuation is in particular towards the mating element (94), and wherein the abutment device (52) moves in the direction of the support device (24) with respect to the lifting function of the lifting tongs (10); - The movement of the abutment device (52) towards the support device (24) occurs only during the movement of the lowering lever (152).

20. The lifting clamp according to claim 19, characterized in that, In the lifting function of the lifting clamp, when the lowering rod (152) acts on the at least one intermediate element (144), the lowering rod (152) simultaneously acts on the blocking device (102) and the contact device (52) is movable on the guide rail (12) towards the supporting device (24).

21. The lifting clamp according to claim 20, characterized in that, The lowering rod (152) acts on at least one blocking element (104) of the blocking device (102) so that the blocking element does not press against the stop (116) but remains spaced apart from the stop (116).

22. The lifting tongs according to any one of claims 14 to 21, characterized in that A spring device (142) is provided, which is supported on the at least one intermediate element (144), wherein when the lowering rod (152) is not operated, the spring device (142) holds the at least one intermediate element (144) in a neutral position (192), and when the lowering rod (152) is operated, the spring force of the spring device (142) must be overcome, and wherein after the force is applied by the lowering rod (152), the spring force of the spring device (142) brings the at least one intermediate element (144) back to the neutral position (192).

23. The lifting clamp according to claim 22, characterized in that A common spring device (142) is provided for the sliding device (130) and the at least one intermediate element (144), wherein the common spring device is supported in particular on the sliding device (130) and the at least one intermediate element (144).

24. The lifting tongs according to any one of the preceding claims, characterized in that, The lowering rod (152) has a first action area (184) and a second action area (188), wherein the lowering rod acts on at least one intermediate element (144) of the second movement mechanism (150) by means of the first action area, and the lowering rod acts on the blocking device (102) by means of the second action area.

25. The lifting clamp according to claim 24, characterized in that Have at least one of the following: - the first action area (184) and the second action area (188) are located on opposite sides of the lowering rod (152), wherein in particular the first action area (184) and the second action area (188) face away from each other with respect to the displacement axis (62); - the first action area (184) points in the direction of the displacement device (130) with respect to the displacement axis (62); - the second action area (188) points in the direction of the blocking device (102) with respect to the movement axis (62); - the first active area (184) and the second active area (188) are positioned in a housing (54) of the abutment device (52); - the first action area (184) and the second action area (188) are located at different areas of the abutment device (52), wherein the different areas are separated by a central axis of the slide rail (12); - the first action area (184) is located at a first area (76) of the abutment device (52), and the at least one abutment element (64) is located at the first area; - The second acting area (188) is located in the second area (78) of the abutting device (52), where the actuating device and / or the mating element (94) are / is located.

26. The lifting tongs according to any one of the preceding claims, characterized in that, The lowering lever (152) is supported on the abutting device (52) in a swingable or swingably movable manner.

27. The lifting tongs according to claim 26, characterized in that, At least one sliding element or rolling element is arranged on the lowering lever (152) for guiding the lowering lever (152) in a movable manner on the abutting device (52) and / or the slide rail (12).

28. The lifting tongs according to any one of the preceding claims, characterized in that, The mating element (94) has or forms a limit stop (190) for the lowering lever (152).

29. The lifting clamp according to any one of the preceding claims, characterized in that, The abutting device (52) includes a housing (54), and the slide rail (12) passes through the housing.

30. The lifting tongs according to any one of the preceding claims, characterized in that, The abutting device (52) can be removed from the slide rail (12) and (i) is provided with the lifting function of the lifting tongs (10), wherein, in the lifting function, the abutting device (52) is pushed on the slide rail (12) in such a way that when the operating lever (84) is actuated, the at least one abutting element (64) moves away from the supporting device (24); and (ii) is provided with a clamping function, in which the abutting device (52) is arranged on the slide rail (12) in such a way that when the operating lever (84) is actuated, the at least one abutting element (64) moves towards the supporting device (24).

31. The lifting clamp according to any one of the preceding claims, characterized in that, The at least one abutting element (64) includes a corner element, which is fixed to the abutting device (52) and in particular to the housing (54) of the abutting device (52).

32. The lifting clamp according to claim 31, wherein The corner element has a first area (76) and a second area (78), the first area is oriented perpendicular to the slide rail (12), the second area is connected to the first area (76) and in particular is integrally connected and is arranged at an obtuse angle (80) to the first area (76), and in particular, the second area (78) is fixed together with the abutting device (52).

33. The lifting clamp according to any one of the preceding claims, characterized in that, The supporting device (24) has a vaulted area (48), and the slide rail (12) is fixed to the vaulted area.

34. The lifting clamp according to claim 33, characterized in that, The supporting device (24) has a support plate, and the vaulted area (48) is arranged on the support plate.

Images