JPH0334902U

JPH0334902U -

Info

Publication number: JPH0334902U
Application number: JP9436889U
Authority: JP
Priority date: 1989-08-14
Filing date: 1989-08-14
Publication date: 1991-04-05

Description

[Brief explanation of drawings]

第１図は本考案の一実施例に係る多片リムの構
造の要部断面図、第２図は第１図の多片リムにお
けるロツクリングの装着不良を示す断面図、第３
図は第１図の多片リムにおけるロツクリングの拡
大断面図、第４図は従来の多片リムの要部断面図
、第５図は第４図の多片リムにおけるロツクリン
グの装着不良に起因するロツクリングの飛出し状
態を示す断面図、である。１……リムベース、７……ビードシートバンド
、９……リム溝、１１……シールリング、２１…
…ロツクリング、２２……ロツクリングの脚部、
２６……ロツクリングの円錐面、３０……延設部
。 FIG. 1 is a sectional view of a main part of the structure of a multi-piece rim according to an embodiment of the present invention, FIG.
The figure is an enlarged sectional view of the lock ring in the multi-piece rim shown in Fig. 1, Fig. 4 is a cross-sectional view of the main part of the conventional multi-piece rim, and Fig. 5 is an enlarged sectional view of the lock ring in the multi-piece rim shown in Fig. 4. FIG. 3 is a cross-sectional view showing the lock ring in a protruding state. 1... Rim base, 7... Bead seat band, 9... Rim groove, 11... Seal ring, 21...
...Lock ring, 22...Leg of lock ring,
26... Conical surface of lock ring, 30... Extended portion.

Claims

[Scope of utility model registration request]

Two side flanges protruding in the radial direction are movably arranged on the outer periphery of the rim base, one side flange is engaged with a flange portion provided at the end of the rim base, and the other side flange is attached to the rim base. Engage with the flange part of the bead seat band that comes into contact with the lock ring to be installed,
A seal ring is interposed between the rim base and the bead seat band, a leg part is formed inside the lock ring to fit into the rim groove of the rim base, and the contact surface of the lock ring with the rim base is formed into a conical shape. In the structure of the multi-piece rim formed on the surface, the rim extends close to the sealing ring between the leg portion of the locking ring and the conical surface, and comes into contact with the bead seat band when the locking ring is not installed in a predetermined position to seal the sealing ring. A multi-piece rim structure characterized by having an extension part that creates a gap in the seal part formed by the ring.