Clamping tool

Abstract

A clamping tool includes a strut having one end and defining a longitudinal axis. Arranged on the one end of the strut is a mount which includes a bushing that is arranged on the strut. The bushing includes recesses and a receptacle which interacts with the recesses so as to be rotatably mounted in the bushing. The bushing has an interior provided with at least one groove for receiving an O-ring which is sized to extend beyond the groove to inhibit a rotational mobility of the receptacle. A clamping device is received in the receptacle of the mount and configured to swing about an axis perpendicular to the longitudinal axis of the strut.

Claims

1. A clamping tool, comprising: a strut having one end and defining a longitudinal axis; a mount arranged on the one end of the strut, said mount including a bushing which is arranged on the strut said bushing including recesses and a receptacle interacting with the recesses so as to be rotatably mounted in the bushing, said bushing having an interior provided with at least one groove: an O-ring placed in the groove and sized to extend beyond the groove to inhibit a rotational mobility of the receptacle; wherein the interior of the bushing has two of said groove, each receiving an O-ring; a clamping device received in the receptacle of the mount and configured to swing about an axis perpendicular to the longitudinal axis of the strut; and a vertical strut having one end and a guide arranged on the one end of the vertical strut, said strut being insertable in the guide.

2. The clamping tool of claim 1, wherein the receptacle has a cylindrical shape.

3. The clamping tool of claim 1, wherein the guide has an interior provided with at least one groove, and further comprising an O-ring placed inside the groove of the guide and sized to extend beyond the groove of the guide to inhibit a rotational mobility or longitudinal shiftability of the strut in the guide.

4. The clamping tool of claim 3, wherein at least one of the strut and the vertical strut is formed from a round tube.

5. The clamping tool of claim 1, further comprising an adjustment ring arranged on a member selected from the group consisting of the strut and the vertical ring, said adjustment ring having an interior provided with a groove for placement of an O-ring sized to extend beyond the groove of the adjustment ring to inhibit a longitudinal mobility of the adjustment ring on the member.

6. The clamping tool of claim 1, wherein the clamping device is constructed in the form of a threaded spindle with an external thread, said receptacle having a transverse internal thread for engagement of the external thread of the threaded spindle.

7. The clamping tool of claim 1, wherein the clamping device is constructed in the form of a quick-release clamping device.

Description

BRIEF DESCRIPTION OF THE DRAWING

(1) The invention will be described in greater detail with reference to the drawing. It is shown in:

(2) FIG. 1 a perspective view of a clamping tool,

(3) FIGS. 2 to 4 side views of the clamping tool in various directions, in which the clamping device acts,

(4) FIGS. 5 and 6 various views of the strut of the clamping tool,

(5) FIG. 7 an enlarged sectional view taken along the line VII-VII of FIG. 6,

(6) FIG. 8 an enlarged sectional view shown taken along the line VIII-VIII of FIG. 6,

(7) FIGS. 9 to 11 various views of the receptacle of the clamping tool,

(8) FIG. 12 an adjustment ring of the clamping tool on an enlarged scale,

(9) FIG. 13 a sectional view taken along the line XIII-XIII of FIG. 12,

(10) FIGS. 14 to 16 side views of the clamping tool with a vertical strut in different directions, in which the clamping device acts,

(11) FIGS. 17 and 18 various views of the vertical strut of the clamping tool, and

(12) FIG. 19 an enlarged section taken along the line XIX-XIX of FIG. 18.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

(13) FIGS. 1 to 4 show various views of a clamping tool 1.

(14) The clamping tool 1 includes a strut 2, which is insertable in an opening, e.g. of a welding table, and is formed from a round tube. A tube of other cross section, a flat bar, or the like, can also be used.

(15) Arranged at one end of the strut 2 is a mount 3 for a clamping device 4, with the clamping device 4 being swingable about an axis perpendicular to the longitudinal direction of the strut 2, as will be explained in greater detail hereinafter. The mount 3 includes a bushing 5 which is arranged on the strut 2 and in which a receptacle 6 is rotatably mounted. Moreover, the bushing 5 has recesses 7 for the clamping device 4. Further details of the bushing 5 and the receptacle 6 are explained with reference to FIGS. 5 to 8 and FIGS. 9 to 11.

(16) Arranged on the strut 2 is an adjustment ring 8 for longitudinal movement. Using the adjustment ring 8, the depth of inserting the strut 2 into the opening can be changed. This adjustment ring 8 is not absolutely required for the function of the clamping tool 1. Further details of the adjustment ring 8 are explained with reference to FIGS. 12 and 13.

(17) A threaded spindle 9 as clamping device 4 is swingable in the mount 3 about an axis perpendicular to the longitudinal direction of the strut 2. For this purpose, the rotatably mounted receptacle 6 has a transverse internal thread in which the external thread of the threaded spindle 9 engages. Instead of the threaded spindle 9, a quick-release clamping device or another clamping mechanism can be used. The threaded spindle 9 has a handle 10 and a replaceable prism 11.

(18) With reference to FIGS. 2 to 4, it becomes apparent that the direction, in which the clamping device 4 acts, can be adjusted in the bushing 5 within the dimensions of the receptacle 7, by rotating the clamping device 4 with the receptacle 6 inside the bushing 5.

(19) The clamping tool 1 can be disassembled in a simple manner by removing the prism 11 and unscrewing the threaded spindle 9 out of the receptacle 6. The receptacle 6 can then be removed from the bushing 5. The structure of the strut 2 and particularly the bushing 5 is explained in greater detail with reference to FIGS. 6 to 8.

(20) A mount 3 is arranged at one end of the strut 2 and includes a bushing 5 with recesses 7. The bushing 5 has in its interior 2 two grooves 13, in each of which there is an O-ring 14 which slightly extends beyond the grooves 13. The O-rings 14 inhibit the rotational mobility of the receptacle 6 in the bushing 5, without preventing it completely. It will be understood that the presence of a single groove 13 with an O-ring 14 is also possible, or further grooves 13 with O-rings 14 can be provided.

(21) The structure of the receptacle 6 is explained in greater detail with reference to FIGS. 9 to 11

(22) The receptacle 6 is shaped cylindrically to realize a rotational mobility inside the bushing 5 in a simple manner. The receptacle 6 has an internal thread 15, which extends transversely to the longitudinal direction and into which the external thread of the threaded spindle 9 can engage.

(23) The adjustment ring 8 is explained in greater detail with reference to FIGS. 12 and 13.

(24) The adjustment ring 8 has in its interior 16 a groove 17, in which an O-ring 18 is located and extends slightly beyond the groove 17. The O-ring 18 inhibits the longitudinal shiftability of the adjustment ring 8 on the strut 2 without preventing it completely.

(25) In the clamping tool 1, shown in FIGS. 14 to 16, the strut 2 is inserted in a guide 20, which is arranged at one end of a vertical strut 19. Further details of the guide 20 are explained with reference to FIGS. 17 to 19.

(26) The vertical strut 19 is insertable in an opening, e.g. of a welding table, and is formed from a round tube. A tube of other cross section, a flat bar, or the like, can also be used. The embodiment of FIGS. 14 to 16 thus renders possible a clamping in the direction of the table plate. The height of the strut 2 from the table plate can hereby be adjusted by a different depth of inserting the vertical strut 19 into the openings, and the distance of the clamping device 4 from the vertical strut 19 can be changed by inserting the strut 2 in the guide 20 of the vertical strut 19 at different depths. At the same time, the adjustability regarding the direction, in which the clamping device 4 acts, is maintained.

(27) Arranged on the vertical strut 19 for longitudinal movement is an adjustment ring 8. Using the adjustment ring 8, the depth of inserting the vertical strut 19 in the opening can be changed. This adjustment ring 8 is not absolutely required for the function of the clamping tool 1. Further details of the adjustment ring 8 are explained with reference to FIGS. 12 and 13.

(28) The structure of the vertical strut 19 and particularly the guide 20 are explained in greater detail with reference to FIGS. 17 to 19.

(29) Arranged at one end of the vertical strut 19 is the guide 20. In its interior 21, the guide 20 has a groove 22 in which an O-ring 23 is located and extends slightly beyond the groove 22. The O-ring 23 inhibits the rotational mobility and/or longitudinal shiftability of the strut 2 in the guide 20 without preventing it completely. It is to be understood that further grooves 22 with O-rings 23 could also be provided.

(30) The use of the clamping tool 1 is not limited to the described welding table, but can be used wherever the clamping tool 1 is insertable with its strut 2 and/or its vertical strut 19 into openings.