Rotatable wheel rim support group particularly for a tire assembling-disassembling machine
First Claim
1. A rotatable wheel rim support group designed to be mounted on a tire assembling-disassembling machine provided with a base, a control shaft extending from said base, removable locking means for said wheel rim, that is engageable, in use, on said control shaft and with a side of said wheel rim, and driving means for said control shaft, and comprising at least one pair of annular plate elements designed to abut, in use, against said wheel rim on opposite side with respect to said removable locking means, said plate elements being arranged mutually facing and approachable to, and retractable from one another on said control shaft, a plurality of friction engagement means angularly spaced from each other and formed partly in one of said annular plate elements and partly in the other, each of said friction engagement means in one plate element being designed to cooperate with a respective friction engagement means on the other plate element of said pair, thereby causing said annular plate elements to move away from one another when one of them is angularly displaced with respect to the other, and support and motion transmission means between said control shaft and one of said annular plate elements of said annular plate element pair.
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Accused Products
Abstract
The present invention relates to a rotatable wheel rim support group designed to be mounted on an assembling-disassembling machine (MT) having a base (10), a control shaft (9) extending upwards from the base (10), removable locking means (11) for the wheel rim (C) which is engageable, in use, on the control shaft (9) and with a side of the wheel rim (C), and actuating means (M) for the control shaft (9). The support group comprises at least one pair of annular plate-shaped members (2, 3), in use, designed to abut against the wheel rim on a side opposite to that of the removable locking means (11), the plate-shaped members (2, 3) being arranged facing and approachable to and retractable from one another about the control shaft (9), a plurality of friction engagement means (5, 6; 5a, 5b) disposed angularly displaced and partly formed in one of the annular plate-shaped members and partly in the other, each of the friction engagement means formed in a plate-shaped member being designed to cooperate with a respective friction engagement means on the other plate-shaped member of the pair, in order to retract the annular plate-shaped members when one of them is angularly displaced with respect to the other, and support and rotational motion transmission means (8, 8a) between the control shaft and one of the annular plate-shaped members (2, 3) of the pair of annular plate-shaped members.
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Citations
17 Claims
- 1. A rotatable wheel rim support group designed to be mounted on a tire assembling-disassembling machine provided with a base, a control shaft extending from said base, removable locking means for said wheel rim, that is engageable, in use, on said control shaft and with a side of said wheel rim, and driving means for said control shaft, and comprising at least one pair of annular plate elements designed to abut, in use, against said wheel rim on opposite side with respect to said removable locking means, said plate elements being arranged mutually facing and approachable to, and retractable from one another on said control shaft, a plurality of friction engagement means angularly spaced from each other and formed partly in one of said annular plate elements and partly in the other, each of said friction engagement means in one plate element being designed to cooperate with a respective friction engagement means on the other plate element of said pair, thereby causing said annular plate elements to move away from one another when one of them is angularly displaced with respect to the other, and support and motion transmission means between said control shaft and one of said annular plate elements of said annular plate element pair.
Specification