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US 2008/0073015 A1Published application
Method And Arrangement For Increasing Safety When Handling A Wheel
AssigneeSandvik Mining and Construction Oy
InventorJuha Koivula
Life of this patent
Estimating the term…
Abstract
A Method and an arrangement for increasing safety when handling a wheel. The method comprises locking a fastening bolt of the rim in the vicinity of a wheel valve in place with a locking device. The arrangement comprises a locking device which locks at least one fastening bolt in the vicinity of the wheel valve in such a way that the fastening bolt cannot be detached before the locking device is removed.
Claims6
1:
- A method for increasing safety in the handling of a wheel of a heavy vehicle when the wheel is being detached from the vehicle shaft in such a way that the fastening bolts attaching the wheel rim to the vehicle shaft are detached to detach the rim from the shaft, whereby at least one fastening bolt in the vicinity of a wheel valve is locked in place with a locking device that prevents the fastening bolt from being detached before the locking device has been removed and which locking device is attached in place with a locking member connected to the valve in such a way that detaching the locking device becomes possible only after the valve has been removed out of place so that the pressurized air within the wheel can discharge, wherein a separate locking part to be screwed into the valve frame being used in the locking member, inside which locking part the actual valve is mounted, whereby the locking device comprises an opening through which the frame of the valve extends when the locking device is in place, and the locking part comprises a portion that is larger than the frame of the valve and said opening of the locking device in at least one direction, so that the locking device cannot be removed without first detaching the locking part and the valve in it out of place.
2:
- A method according to claim 1, wherein the fastening bolts of the rim, adjacent to the valve on both sides of it, being locked with the locking device.
3:
- An arrangement for increasing safety in the handling of a wheel of a heavy vehicle when the wheel is being detached from the vehicle shaft in such a way that the fastening bolts attaching the wheel rim to the vehicle shaft are detached to detach the rim from the shaft, which arrangement comprises a locking device that locks at least one fastening bolt in the vicinity of a wheel valve in such a way that the fastening bolt cannot be detached before the locking device has been removed and that it comprises a locking member connected to the wheel valve, which locking member locks the locking device in place in such a way that detaching the locking device becomes possible only after the valve has been removed out of place so that the pressurized air within the wheel can discharge, wherein the locking member comprises a separate locking part to be screwed into the valve frame, inside which locking part the actual valve is mounted;
- that the locking device comprises an opening through which the frame of the valve extends when the locking device is in place;
- and that the locking part comprises a portion that is larger than the frame of the valve and said opening of the locking device in at least one direction, so that the locking device cannot be removed without first detaching the locking part and the valve in it out of place.
4:
- An arrangement according to claim 3, wherein the locking device is arranged to lock the fastening bolts adjacent to the valve, on both sides of it, in place.
5:
- An arrangement according to claim 3, wherein the locking device comprises a cup-like part positioned upon the fastening bolts, which part covers the head of the fastening bolt at least partly, so that it cannot be turned loose.
6:
- An arrangement according to claim 3, wherein the locking device has an opening of a shape of the heads of the fastening bolts, so that they lock the fastening bolts to be unrotatable by their heads.