IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0349653
(2003-01-23)
|
우선권정보 |
DE-0020879 (2002-05-10); DE-0002890 (2002-01-25) |
발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
9 인용 특허 :
0 |
초록
▼
A stand for clamping rod-shaped parts has a foot part with a base plate and a seating region, which is formed by a wall contour with individual wall regions. The rod-shaped part is inserted with its lower end into the opening of the seating region and initially fixed by means of an arbor. Pivotable
A stand for clamping rod-shaped parts has a foot part with a base plate and a seating region, which is formed by a wall contour with individual wall regions. The rod-shaped part is inserted with its lower end into the opening of the seating region and initially fixed by means of an arbor. Pivotable holding elements are placed against the rod-shaped part by means of a tensioning device. The holding elements are actuated by the tensioning device, which has a tensioning lever, a drum and a housing. A flexible connecting element, which pulls the holding element inward into the clamping position, is pulled together by means of the tensioning device. In order to introduce forces gently, the ends of the flexible connecting part are guided from the holding elements to the tensioning device in a special guiding block, which consists of a material which can be subjected to higher loads than can the material of the remaining foot part.
대표청구항
▼
1. A stand for clamping a rod-shaped part comprising a foot part having a seating region for an end of the rod-shaped part, the seating region being formed by a contoured wall, a plurality of holding elements disposed around an axis of symmetry, each of the holding elements being swivelable in a res
1. A stand for clamping a rod-shaped part comprising a foot part having a seating region for an end of the rod-shaped part, the seating region being formed by a contoured wall, a plurality of holding elements disposed around an axis of symmetry, each of the holding elements being swivelable in a respective plane between an open position and a holding position, the planes intersecting approximately in the axis of symmetry, a tensioning device, a flexible connecting part tensioned by the tensioning device, the tensioning device being guided in the form of an approximately closed loop movably through all the holding elements, actuation of the tensioning device effecting swiveling of the holding elements from the open position into the holding position, a guiding part provided at the foot part, at least one end of the flexible connecting part being guided by the guiding part away from the loop and the axis of symmetry, the guiding part comprising a guiding block, the contoured wall having a recess in which the guiding block is received, the guiding block being in direct contact with the tensioning device, whereby a reaction force, corresponding to a tensile force, is transferred from the tensioning device to the foot part.2. The stand of claim 1, wherein the foot part comprises plastic and the guiding block comprises a nylon.3. The stand of claim 1, wherein the flexible connecting part has two ends, both said ends pass through the guiding block to the tensioning device and are connected with the tensioning device.4. The stand of claim 3, wherein the guiding block has two boreholes and each of said ends of the flexible connecting part is passed through a respective one of said boreholes.5. The stand of claim 4, wherein the contoured wall is of circular configuration, the foot part comprises a base plate, the contoured wall extends from the base plate at substantially right angles to its circular configuration, and the recess has an opening at an underside of the contoured wall, the guiding block being received in the recess through said opening.6. The stand of claim 5, wherein the tensioning device is disposed at the contoured wall adjacent the guiding block and oriented approximately radially in relation to the axis of symmetry.7. The stand of claim 6, wherein the guiding block is provided with a projection, the projection extending through the opening, being in contact with the tensioning device and transferring forces.8. The stand of claim 3 or 4, wherein the foot part comprises a base plate, the contoured wall is of circular configuration and extends from the base plate at substantially right angles to the circular configuration and the guiding block mates with the contoured wall.9. The stand of claim 8, wherein the recess has an opening facing radially outwardly in relation to the axis of symmetry through which the guiding block is received into the recess.10. The stand of claim 9, wherein the guiding block comprises a reinforced middle part and two lateral wings, the middle part having a region for guiding the ends of the flexible connecting part and being in contact with the tensioning device, the wings forming enlarged contacting surfaces at the contoured wall.11. The stand of one claim 1 or 2, further comprising a guide which extends radially in relation to the axis of symmetry into the guiding block and a stop which limits an extent to which the guide extends into the guiding block.12. The stand of claim 11, wherein the guide comprises guiding walls formed at the contoured wall, the guiding walls extending from the seating region to the outside of the contoured wall and the guiding walls having ribs and grooves which hold the guiding block so that the guiding block is slidable in a radial direction relative to the axis of symmetry.13. The stand of claim 12, further comprising ribs formed on surfaces of the guiding block, the guiding block having rounded corners which define a transition between said surfaces and other, side surfaces of the guiding block, the side walls being at a distance from the guiding walls which are adjacent the side walls when the guiding block is received in the recess.14. The stand of claim 12, wherein the guiding block ribs have a rectangular or under-cut profile.15. The stand of claim 11, wherein the guiding block comprises a holding device for the tensioning device.16. The stand of claim 15, wherein the guiding block has a recess for receiving the tensioning device.17. The stand of claim 16, wherein the recess in the guiding block is open radially to the outside, in relation to the axis of symmetry, and to the foot part and forms a guide which extends essentially parallel to the axis of symmetry and into which the tensioning device is received from the side facing the foot part up to a stop.18. The stand of claim 17, further comprising rib and groove profiling which enables the housing to slide in a direction parallel to the axis of symmetry but prevents migration radially to the axis of symmetry, between the housing of the tensioning device and walls of the recess.19. The stand of claim 17, wherein the stop which limits movement of the tensioning device into the guiding block is formed by the inner wall of an upper region of the guiding block, the upper region functioning as a rope guide and protruding upward over the seating region.20. The stand of claim 17, further comprising at least one cam, the tensioning device, inserted in the guiding block, being prevented from shifting in the direction of the foot part by said at least one cam, the cam being located in a shifting path of the tensioning device within the guiding block.21. The stand of claim 11, wherein the stop which limits inward movement of the guiding block in the direction of the axis of symmetry, is formed by the seating region.22. The stand of claim 11, further comprising a hood covering the foot part and provided with a functional opening, at least one stop formed at the hood and interacting with the guiding block to prevent shifting of the latter in a radial direction away from the axis of symmetry.23. The stand of claim 12, wherein the tensioning device comprises at least one of a drum and a tensioning lever mounted on an axle retained by the guiding walls, for taking up the flexible connecting part.24. The stand of claim 1, wherein the nylon is glass fiber-reinforced.25. The stand of claims 14, wherein the profile is a dovetail profile.
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