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43. 发明专利

JPH04321401A TWO PIECE ALUMINUM WHEEL AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH04321401A
公开(公告)日：1992-11-11
申请号：JP1328091
申请日：1991-02-04
申请人： CENTRAL MOTOR WHEEL CO LTD
发明人： TAKASHIMA TAKUMI
IPC分类号： B60B25/02 , B60B23/00
摘要： PURPOSE:To increase the strength of a front side flange section of a two piece full face type aluminum wheel for automobiles and to facilitate the manufacture the rim thereof. CONSTITUTION:A front side flange 2 is provided on a rim and a flanged fitting surface 2a is formed on the rear side thereof. A disc 3 is formed on its front side flange 4 with a second flared fitting surface 4a which is closely fitted on its rear side with the afore-mentioned flared fitting surface 2a. The rim 1 is shrink-fitted on the disc 1 so that both fitting surfaces are closely fitted with each other, and are welded together in a welding section. The front side flange 4 is reinforced by the toughness of the front side flange 2 of the rim 1, thereby it is possible to increase the flange section.

45. 发明专利

JPH04218415A TIRE AND RIM 失效
公开(公告)号：JPH04218415A
公开(公告)日：1992-08-10
申请号：JP8773791
申请日：1991-03-26
申请人： SUMITOMO RUBBER IND
发明人： KIMURA KATSUO
IPC分类号： B60B21/02 , B60B25/02 , B60C15/02
摘要： PURPOSE:To simplify the bead structure and facilitate rim assembly by forming the bead part as going apart from the central surface of the tire section, and forming a circumferential groove, which opens in the direction as going apart from the central surface of the tire section, from the lower part of the side wall and the bead part. CONSTITUTION:Beads 2, 2' are formed as going apart from the central surface of the tire section, and circumferential grooves 14, 14' opening in the direction as going apart from the central surface of the tire section is formed from the lower parts 1a, 1a' of side walls 1, 1' and the beads 2, 2'. Bead seats 3, 3' of a rim titted to the tire T are formed at the peripheries of discs 8, 8' as directed so as to approaching the central surface of the rim section. At the side edges of the bead seats 3, 3' on the central surface side of the rim section, flanges 4, 4' are provided upright, where the outer surfaces of the side walls 1, 1' of tire T will contact. Thus the bead wire 5 can be made smaller by allowing the bead seat 3 to share the force applied to the bead wire 5 with the internal pressure.

47. 实用新型

JPH0327841Y2 失效
公开(公告)号：JPH0327841Y2
公开(公告)日：1991-06-17
申请号：JP15926683
申请日：1983-10-17
IPC分类号： B60B3/04 , B60B11/04 , B60B11/06 , B60B21/10 , B60B23/06 , B60B23/10 , B60B25/02

50. 发明专利

JPH02187225A MANUFACTURE OF AL ALLOY WHEEL 失效
公开(公告)号：JPH02187225A
公开(公告)日：1990-07-23
申请号：JP33732089
申请日：1989-12-25
申请人： ZENYA ALUMINIUM SEISAKUSHO
发明人： YUKISHIMO TAKEMASA , KONISHI MICHIO
IPC分类号： B60B25/02 , B21D51/16 , B21D53/30
摘要： PURPOSE:To obtain a wheel excellent in strength by welding the whole periphery of the joined bottom surfaces of two cups obtained when a circular stock is deep-drawn, edge-trimmed, edge-bent, then, the edge-trimmed end face is rounded, further the rimmed edge part is press-curled inside in the hollow and annular shape. CONSTITUTION:When the cup 1 is deep-drawn, then, the edge is cut, the edge- bent cup is mounted on a turning table, the cup is rotated pushing a piece 11 having a radial surface intruded into the edge 4'', the corner part of the edge 4'' is rounded into a smooth radial surface. After this R working, the edge is bent by 45 deg. and press-curled for curling the edge. Since the R working is performed after the edge-bending, the curling can be performed without giving flaws to the bearing surface 5 for the bead and the margin face 4 of a tire on the edge part of a rim side. By this method, the edge part of the rim is curled completely inside and an Al alloy wheel free from flaws, excellent in strength can be mass-produced by pressing.

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