Universal holding clamp for holding objects of any desired type

Abstract

A holding clamp having two clamping jaws, which are located opposite each other in mirror-image fashion relative to a baseplate and can be rotated as a function of each other and at a distance from each other on axle pins arranged on the baseplate, wherein the clamping jaws are connected to axle sleeves, which are mounted on the axle pins such that they can rotate, and a synchronization mechanism for transmitting the pivoting movement from one clamping jaw to the other is formed from at least one toothed gear element, wherein the gear element is formed by a rack which, at each of the two opposite ends thereof, carries a toothed part, which is respectively in toothed engagement with a respective partial toothing system on the outer circumference of the axle sleeve of the clamping jaw.

Claims

1. A holding clamp having two clamping jaws (10, 11), which oppose one another in a mirror image with respect to a base plate (1), and which are rotatable in dependence on one another and on axial pins (3, 4) arranged spaced apart from one another on the base plate (1), wherein the clamping jaws (10, 11) are connected to axial sleeves (5, 6), which are mounted so they are rotatable on the axial pins (3, 4), and a synchronization mechanism for transmitting a pivot movement from one to the other clamping jaw (10, 11) is formed from at least one toothed gearing element, wherein the gearing element is formed by a toothed rack (25), which carries a toothed part (28) on each of its two opposing ends, which has a gear teeth engagement in each case with a partial set of gear teeth (7, 8) in each case on an outer circumference of the axial sleeve (5, 6) of the clamping jaw (10, 11), wherein the toothed rack (25) is pre-tensioned by a spring element, which pre-tensions the clamping jaws (10, 11) in a closed position, and an actuation of the clamping jaws (10, 11) is performed by an object to be clamped itself, wherein a displacement of the toothed rack (25) is delimited by stop ribs (29, 30) on a bottom side of the base plate (1).

2. The holding clamp according to claim 1, wherein the clamping jaws (10, 11) are formed from arced curvature surfaces (39, 40).

3. The holding clamp according to claim 1, wherein the toothed rack (25) is installed concealed in a bottom part of the holding clamp.

4. The holding clamp according to claim 1, wherein an open position of the clamping jaws (10, 11) is implemented so it can be latched.

5. The holding clamp according to claim 1, the clamping jaws (10, 11) are connected to holding plates (14, 15), on which inclined conical opening attachments (16, 17), which are oriented outward and upward with respect to an insertion gap, (23) are formed, which implement insertion bevels (38), into which the object is pressed.

6. The holding clamp according to claim 1, wherein the clamping jaws (11, 12) carry an elastomeric clamping coating (12, 13).

7. The holding clamp according to claim 1, wherein the toothed rack (25) is mounted so it is displaceable in a recess (31) in the base plate (1).

8. The holding clamp according to claim 1, wherein longitudinal guiding of the toothed rack (25) is performed by longitudinal guiding ribs (32) spaced apart from one another in parallel to a movement direction of the toothed rack (25).

9. The holding clamp according to claim 1, wherein a fastening point (34) for one end of a traction spring (33) is arranged in a middle region of the toothed rack (25), the other end of which is fixed in a stationary manner on the base plate in a fastening point (35).

10. A holding clamp having two clamping jaws (10, 11), which oppose one another in a mirror image with respect to a base plate (1), and which are rotatable in dependence on one another and on axial pins (3, 4) arranged spaced apart from one another on the base plate (1), wherein the clamping jaws (10, 11) are connected to axial sleeves (5, 6), which are mounted so they are rotatable on the axial pins (3, 4), and a synchronization mechanism for transmitting a pivot movement from one to the other clamping jaw (10, 11) is formed from at least one toothed gearing element, wherein the gearing element is formed by a toothed rack (25), which carries a toothed part (28) on each of its two opposing ends, which has a gear teeth engagement in each case with a partial set of gear teeth (7, 8) in each case on an outer circumference of the axial sleeve (5, 6) of the clamping jaw (10, 11), wherein the toothed rack (25) is pre-tensioned by a spring element, which pre-tensions the clamping jaws (10, 11) in a closed position, and an actuation of the clamping jaws (10, 11) is performed by an object to be clamped itself, wherein longitudinal guiding of the toothed rack (25) is performed by longitudinal guiding ribs (32) spaced apart from one another in parallel to a movement direction of the toothed rack (25).

11. A holding clamp having two clamping jaws (10, 11), which oppose one another in a mirror image with respect to a base plate (1), and which are rotatable in dependence on one another and on axial pins (3, 4) arranged spaced apart from one another on the base plate (1), wherein the clamping jaws (10, 11) are connected to axial sleeves (5, 6), which are mounted so they are rotatable on the axial pins (3, 4), and a synchronization mechanism for transmitting a pivot movement from one to the other clamping jaw (10, 11) is formed from at least one toothed gearing element, wherein the gearing element is formed by a toothed rack (25), which carries a toothed part (28) on each of its two opposing ends, which has a gear teeth engagement in each case with a partial set of gear teeth (7, 8) in each case on an outer circumference of the axial sleeve (5, 6) of the clamping jaw (10, 11), wherein the toothed rack (25) is pre-tensioned by a spring element, which pre-tensions the clamping jaws (10, 11) in a closed position, and an actuation of the clamping jaws (10, 11) is performed by an object to be clamped itself, wherein a fastening point (34) for one end of a traction spring (33) is arranged in a middle region of the toothed rack (25), the other end of which is fixed in a stationary manner on the base plate in a fastening point (35).

Description

(1) In the figures:

(2) FIG. 1: shows a top view of the holding clamp according to the invention

(3) FIG. 2: shows a top view of the upper side of the base plate with removed cover according to section B-B in FIG. 3

(4) FIG. 3: shows a frontal view of the arrangement in the closed state

(5) FIG. 4: shows a section through the arrangement according to section A-A in FIG. 1.

(6) The holding clamp essentially consists of a base plate 1, which is covered on top by a cover 2.

(7) According to FIG. 4, two axial pins 3, 4, which are arranged at a distance to one another, are preferably implemented in a material-integral manner with the of base plate 1 according to FIG. 4, these pins forming the pivot bearings for the clamping jaws 10, 11 to be described hereafter.

(8) Each axial sleeve 5, 6 is a component of one clamping jaw 10, 11 respectively and is connected in a material-integral manner thereto. This results, for example, from FIG. 4, wherein it is recognizable that the axial sleeves 5, 6 are each connected in a material-integral manner via a connection attachment to one holding plate 14, 15 respectively.

(9) Arced curvature surfaces 39, 40, which are each coated on their outer side with a clamping coating 12, 13, extend perpendicularly to the respective holding plate 14, 15.

(10) The clamping coating 12, 13 can thus either be glued as a separate part onto the curvature surface 39, 40 or the curvature surfaces 39, 40 can be implemented as a whole as the clamping coating 12, 13 from a single elastomeric part.

(11) In another embodiment, it can be provided that the part consisting of uniform material, consisting of curvature surface 39, 40 and clamping coating 12, 13, is connectible to the clamping jaw separately from the remaining parts thereof.

(12) It can also be provided that these parts form a material-integral part of the clamping jaw 10, 11.

(13) For the synchronization of the pivot movement of the two clamping jaws 10, 11 assigned to one another, the synchronization mechanism according to the invention is provided, which essentially consists of a toothed rack 25, which is arranged in a recess 31 in the base plate 1 and is mounted so it is displaceable.

(14) The toothed rack 25 has bent regions 26, 27 implemented opposite to one another, on the front free end of which a toothed part 28 is arranged in each case.

(15) Each toothed part 28 meshes with an associated partial set of gear teeth 7, 8 on the outer circumference of the axial sleeve 5, 6.

(16) The toothed rack 25 is mounted so it is displaceable (in the arrow direction 37 and in the opposite direction thereto) in the recess 31 of the base plate 1, wherein a right stop rib 29 delimits the displacement to the right and a left stop rib 30 delimits the displacement to the left, while longitudinal guiding ribs 32, which are at an angle thereto and are spaced apart parallel to the movement direction of the toothed rack 25, are provided for the longitudinal guiding in the base plate 1. Stable longitudinal and transverse guiding is thus provided for the toothed rack 25, which can therefore transmit high clamping forces from one to the other clamping jaw 10, 11 without buckling or another impermissible deformation of the toothed rack 25 being able to occur. The bottom-side terminus of the base plate 1 by a cover 2 also helps here, which protects the toothed rack 25 over its entire flat side against bulging out during the transmission of higher synchronization forces.

(17) In the middle region of the toothed rack, a fastening point 34 is provided, at which one end of a traction spring 33 engages, the other end of which is fixed so it is stationary on the base plate 1 at a fastening point 35.

(18) It is important in the embodiment according to FIG. 2 that the traction spring 33 always holds the two clamping jaws 10, 11 in the closed position by spring pre-loading in the closed position according to FIG. 1 or FIG. 3, so that the insertion gap 23 is always closed in a spring pre-loaded manner.

(19) To enable actuation of the holding clamp without action of a hand, it is provided that the opening of the holding clamp and the production of the clamping action are performed by the object 19 to be held itself (see FIG. 4). The object 19, which is implemented as a round tube here, for example, is guided in the insertion direction 18 against upper inclined opening attachments 16, 17, which are provided with insertion bevels 38, and which are formed as insertion ribs fixedly on the holding plates 14, 15.

(20) Additional markings 20 can also be applied to these opening attachments 16, 17, to also make it visually clear that an object moved against the holder in the insertion direction 18 only has to be placed on the opening attachments 16, 17 and pressed in to thus open both clamping jaws 10, 11 in a spring-loaded manner.

(21) The two clamping jaws 10, 11 carry out a pivot movement in the arrow direction 9 to open the insertion gap 23.

(22) To enable free pivoting of the two clamping jaws 10, 11 in relation to the base plate 1, a clearance 24 is provided above the cover 2 of the base plate 1.

(23) Moreover, FIGS. 1 and 4 show a disk 21, which is used as a pull-off protector of the axial sleeves 5, 6, so that they cannot be pulled off of the stationary axial pins 3, 4. The disk 21 is fixed using a screw 22 in the axial sleeve 5, 6 in each case, and is used as a pull-off protector for the axial sleeves 5, 6, which rotate under the disk 21.

(24) Screw boreholes 36 are also provided in the region below the cover 2 in the recess 31 of the base plate 1, through which screws (not shown in greater detail) engage, which fix the holding clamp on a holding surface.

(25) The advantage of the holding clamp is that it can be held, because of the spring pre-tension of the toothed rack 25, in any arbitrary installation attitude or fastening attitude, so that it is even possible to provide the holding clamp according to the invention with a handle, to use the holding clamp as a holding or carrying tool, using which, for example, heavy chipboard slabs, glass plates, or other elements can be carried by one person.

(26) Instead of the use of a toothed rack as a gearing element of the synchronization mechanism, other, similarly acting gearing elements, such as semicircular gearwheels which mesh with one another or the like, can also be used.

(27) TABLE-US-00001 List of reference numerals 1 base plate 2 cover 3 left axial pin 4 right axial pin 5 left axial sleeve 6 right axial sleeve 7 left partial set of gear teeth 8 right partial set of gear teeth 9 arrow direction 10 left clamping jaw 11 right clamping jaw 12 left clamping coating 13 right clamping coating 14 holding plate 15 holding plate 16 opening attachment 17 opening attachment 18 insertion direction 19 object 20 marking 21 disk 22 screw 23 insertion gap 24 clearance 25 toothed rack 26 bent region (of 25) 27 bent region (of 25) 28 toothed part 29 stop rib 30 stop rib 31 recess 32 longitudinal guiding rib 33 traction spring 34 fastening point 35 fastening point 36 screw borehole 37 arrow direction 38 insertion bevel 39 curvature surface 40 curvature surface