Device and method for joining rubber members
AssigneeBridgestone Corporation
InventorHitoshi Yamamoto
Life of this patent
Estimating the term…
Abstract
When overlapping and joining together end portions of a rubber member, it becomes possible to join them at a joining area smaller than a conventional one by increasing the joining area. There is provided a joining device for overlapping end portions, of a rubber member (tire constituent member) with one upper end portion placing on the other lower end portion and joining the end portions of the rubber member, in which a pressing roll (disk-shaped roll) rotating about an inclined shaft is rolled while being pressed against the overlapped upper end portion of the rubber member, and the upper end portion is extended by a shearing force generated at this time to increase a joining area between the both end portions.
Claims10
A device for joining overlapped end portions of a rubber member with one of the end portions placing on the other end portion of the rubber member, the device comprising:
- a pressing roll rotating about an inclined shaft inclined with respect to a surface of the end portion of the rubber member;
- means for pressing a rolling surface of the pressing roll against the overlapped upper end portion of the rubber member;
- and
- a moving unit for rolling the rolling surface of the pressing roll while pressing the rolling surface thereof against the upper end portion of the rubber member, wherein
- joining is performed with the upper end portion being extended and a joining area between the end portions to be joined being increased by rolling the rolling surface of the pressing roll while pressing it against the upper end portion of the rubber member.
A method for joining overlapped end portions of a rubber member with one of the end portions placing on the other end portion of the rubber member, the method comprising the steps of:
- pressing a rolling surface of a pressing roll rotating about an inclined shaft inclined with respect to a surface of the end portion of the rubber member against the overlapped upper end portion of the rubber member;
- and
- rolling the rolling surface of the pressing roll while pressing the rolling surface thereof against the upper end portion of the rubber member,
- wherein
- joining is performed with the upper end portion being extended and a joining area between the end portions to be joined being increased by rolling the rolling surface of the pressing roll while pressing it against the upper end portion of the rubber member.
Dependencies are inferred from the claim text.