Method of and apparatus for determining geometrical dimensions of a wheel rim, in particular when fitting and/or removing a motor vehicle tyre
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01B-011/14
G01B-011/26
G01B-011/30
G01B-011/24
G01C-001/00
출원번호
UP-0979245
(2007-10-31)
등록번호
US-7715024
(2010-06-03)
우선권정보
EP-06024644(2006-11-28)
발명자
/ 주소
Sotgiu, Paolo
출원인 / 주소
Snap-On Equipment SRL A. Unico Socio
대리인 / 주소
McDermott Will & Emery LLP
인용정보
피인용 횟수 :
3인용 특허 :
10
초록▼
An apparatus for and a method of fitting or removing a motor vehicle tyre (4) comprising a rotatably supported wheel receiving device (2) to which the rim (3) is to be fixed, at least one fitting or removal tool (5), a rotary drive device (10) for the wheel receiving device and a sensing device (6),
An apparatus for and a method of fitting or removing a motor vehicle tyre (4) comprising a rotatably supported wheel receiving device (2) to which the rim (3) is to be fixed, at least one fitting or removal tool (5), a rotary drive device (10) for the wheel receiving device and a sensing device (6), (7), (8) for sensing the radially outer rim contour (12), (14) along which the at least one fitting or removal tool is to be guided during the fitting or removal operation, wherein the sensing device (6), (7), (8) is a sensing device which contact-lessly senses the rim contour and the sensing signals of which are converted into electrical sensing signals, and connected to the sensing device (6), (7), (8) is a control device (9) which evaluates the electrical sensing signals and which controls the at least one fitting or removal tool (5) in the fitting or removal operation in dependence on the sensing signals without contact with the rim surface.
대표청구항▼
The invention claimed is: 1. A method of determining geometrical dimensions of a rim of a motor vehicle wheel by contact-less sensing, wherein a light beam is emitted onto the rim or least part of the rim and a light beam reflected at an impingement point is detected and that the directions of the
The invention claimed is: 1. A method of determining geometrical dimensions of a rim of a motor vehicle wheel by contact-less sensing, wherein a light beam is emitted onto the rim or least part of the rim and a light beam reflected at an impingement point is detected and that the directions of the emitted and reflected light beams are evaluated for determining the position of the respective impingement spot on the rim, and wherein a rim contour along which at least one fitting or removal tool is guided during a fitting or removal of a motor vehicle tyre is contactlessly sensed and a movement of the fitting or removal tool is guided in dependence on the sensed contour without contact with a rim surface. 2. A method according to claim 1, wherein a movement of the at least one fitting or removal tool is controlled in dependence on a sensed position of at least one of two rim beads and in dependence on a stored or sensed contour of a rim bed. 3. A method according to claim 1, wherein a movement of the at least one fitting or removal tool is controlled in dependence on a detected position of an outer peripheral edge of at least one of two rim beads. 4. A method according to claim 1, wherein the emitted light beam is directed onto the rim which rotates about a stationary axis. 5. A method according to claim 1 or claim 4, wherein the light beam is emitted onto the rim from one or more given positions. 6. A method according to one of claims 1 to 4, wherein at least one annular surface around a rim axis is sensed on the rim with the emitted light beam. 7. A method according to one of claims 1 to 4, wherein at least one of two rim beads is sensed with the emitted light beam. 8. A method according to one of claims 1 to 4, wherein an outer peripheral surface of the rim is sensed with the emitted light beam. 9. A method according to one of claims 1 to 4, wherein a spacings of respective rim parts which are sensed with the light beam relative to a stationary reference are ascertained. 10. A method according to claim 9, wherein the operation of sensing spacings is effected in accordance with a triangulation method. 11. An apparatus that determines geometrical dimensions of a rim of a motor vehicle wheel, the apparatus comprising: a plurality of sensing devices for sensing a rim surface, and a computer-aided evaluation arrangement device for evaluation of electrical sensing signals supplied by the plurality of sensing devices, wherein each of the plurality of sensing devices has at least one light source which emits a light beam from at least one given position in at least one given direction onto the rim surface, and a detector which detects a direction of a light beam reflected by the rim surface, and wherein the evaluation arrangement device is configured to determine the position of an impingement spot sensed by the light beam on the rim surface, from the directions of the emitted light beam and the reflected light beam, the apparatus further comprising: a rotatably supported wheel receiving device to which the rim is to be fixed, at least one fitting or removal tool, a rotary drive device for the wheel receiving device, and a control device connected to the evaluation arrangement device, wherein each of the plurality of sensing devices is configured to contactlessly sense a radially outer rim contour along which the at least one fitting or removal tool is to be guided during a fitting or removal of a motor vehicle tyre, and the control device is configured to control the at least one fitting or removal tool in the fitting or removal operation based on the sensing signals without contact with the rim surface. 12. An apparatus according to claim 11, wherein each of the plurality of sensing devices is an optical sensing device. 13. An apparatus according to claim 11, wherein at least one of the plurality of sensing devices is arranged in front of the at least one fitting or removal tool in the direction of rotation of the wheel receiving device. 14. An apparatus according to claim 11, wherein a spatial position of the respectively sensed point on the rim is determined with respect to at least one fitting or removal tool. 15. An apparatus according to claim 11, wherein respective spatial positions of outer peripheral edges of rim beads are determined. 16. An apparatus according to claim 11, wherein the evaluation arrangement device is suitable for determining spatial position of rim bed which is between rim beads. 17. An apparatus according to claim 11, wherein, for different wheel types, contours of rim beds are stored in a store of the control device or in a store connected to the control device. 18. An apparatus according to claim 11, wherein two of the plurality of sensing devices each having the light source and the detector are provided for sensing two rim beads. 19. An apparatus according to claim 17, wherein contours of rim beads are additionally stored in the store of the control device. 20. An apparatus according to one of claims 11 and 18, wherein one of the plurality of sensing devices includes a light source and an associated detector for sensing a rim outside surface. 21. An apparatus according to one of claims 11 and 18, wherein the light source and the detector of each of the plurality of sensing devices are pivotable synchronously about a common axis and an electrical signal proportional to a respective pivot angle is fed to the evaluation arrangement device. 22. An apparatus according to one of claims 11 or 18, wherein the evaluation arrangement device is suitable for determining the position of a respective location which is sensed on the rim surface from the directions of the light beam emitted by the light source of each of the plurality of sensing devices and the light beam reflected at the rim surface by means of triangulation. 23. An apparatus according to one of claims 11 and 18, wherein a rotary angle sender detects a respective rotary angle position of the rim and supplies a corresponding electrical signal to the evaluation arrangement device.
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이 특허에 인용된 특허 (10)
Gonzaga,Tullio, Apparatus for servicing a tired wheel.
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