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AssigneeBridgestone Corporation
InventorsYoshiaiki Hirata, Akio Oobayashi, Keigo Kikuchi
Estimating the term…
A hollow-cylindrical portion (26) inserted in a hollow-cylindrical portion (16) of one rim section (12) is provided on the other rim section (13). To form a split rim (11), part (head portion) of the inner hollow-cylindrical portion (26) overlaid on the outer hollow-cylindrical portion (16) is radially outwardly expanded by being elastically deformed by a tapered surface (39) of a piston (38) such that the inner and outer hollow-cylindrical portions (16, 26) are in close contact with each other. As a result, relative positions of the rim sections (12, 13) are strictly defined, and this enables high assembling accuracy, particularly coaxiality with a high level, to be achieved. A fine fitted to the split rim (11) can be inspected with high accuracy.
A split rim for a tire comprising a one-side rim section on which a one-side bead portion of a pneumatic tire is seated and which has a cylindrical portion in the approximately cylindrical shape projecting inward in the axial direction, the other-side rim section on which the other-side bead portion of said pneumatic tire is seated and which has a cylindrical portion in the approximately cylindrical shape projecting inward in the axial direction and inserted into the cylindrical portion of said one-side rim section, a fastening means for fastening said one-side and the other-side rim sections to each other when the cylindrical portions of the one-side and the other-side rim sections are overlaid due to said insertion, and an expanding means for expanding a part of the inner cylindrical portion at said overlaid part outward in the radial direction to bring the inner and the outer cylindrical portions into close contact.
A method of assembling a rim/tire assembly comprising a process of overlaying cylindrical portions of a one-side and the other-side rim sections by seating a one-side bead portion of a pneumatic tire on the one-side rim section and the other-side bead portion on the other side rim section as well as by inserting the cylindrical portion in the approximately cylindrical shape of the other-side rim section projecting inward in the axial direction into the cylindrical portion in the approximately cylindrical shape of the one-side rim section projecting inward in the axial direction, and a process of bringing the cylindrical portions on the inner and the outer sides into close contact by fastening said one-side and the other-side rim sections to each other with a fastening means and expanding a part of the inner cylindrical portion in the overlaid part outward in the radial direction with an expanding means.
A method for installing a rim/tire assembly comprising a process of conveying a rim/tire assembly made of a pneumatic tire, a one-side rim section on which a one-side bead portion of the pneumatic tire is seated, and the other-side rim section on which the other-side bead portion of said pneumatic tire is seated and which is detachably coupled to the one-side rim section onto a member to be attached, and a process to attach and fix said conveyed rim/tire assembly to a predetermined position of the member to be attached with an attaching means as well as to have a first fluid passage formed in the member to be attached to communicate to a second fluid passage formed in the rim/tire assembly and to introduce a fluid between the one-side and the other-side rim sections and the pneumatic tire through the first and the second fluid passages.
A device for installing a rim/tire assembly comprising a conveying means for conveying a rim/tire assembly made of a pneumatic tire, a one-side rim section on which a one-side bead portion of the pneumatic tire is seated, and the other-side rim section on which the other-side bead portion of said pneumatic tire is seated and which is detachably coupled to said one-side rim section into a member to be attached, an attaching means for attaching/fixing said conveyed rim/tire assembly to a predetermined position of the member to be attached, and a second fluid passage formed in the rim/tire assembly for introducing a fluid from a first passage between the one-side and the other-side rim sections and the pneumatic tire when being made to communicate to the first fluid passage formed in the member to be attached.
Dependencies are inferred from the claim text.