US 12,140,199 B2
Dust cover, suspension device, and method for manufacturing dust cover
Hiroo Kawano, Tokyo (JP); and Shoji Shimizu, Kiryu (JP)
Assigned to SUBARU CORPORATION, Tokyo (JP); and EXCELL CORPORATION, Matsudo (JP)
Filed by SUBARU CORPORATION, Tokyo (JP); and EXCELL CORPORATION, Matsudo (JP)
Filed on Aug. 24, 2021, as Appl. No. 17/410,728.
Application 17/410,728 is a continuation of application No. PCT/JP2019/048307, filed on Dec. 10, 2019.
Claims priority of application No. 2019-060543 (JP), filed on Mar. 27, 2019.
Prior Publication US 2021/0381572 A1, Dec. 9, 2021
Int. Cl. F16F 9/38 (2006.01); B29C 49/48 (2006.01); B29K 101/12 (2006.01); B29L 31/30 (2006.01); B60G 15/06 (2006.01); F16J 3/04 (2006.01); F16J 15/52 (2006.01)
CPC F16F 9/38 (2013.01) [B29C 49/4815 (2013.01); B60G 15/067 (2013.01); F16J 3/042 (2013.01); F16J 15/52 (2013.01); B29C 2049/4892 (2013.01); B29K 2101/12 (2013.01); B29L 2031/30 (2013.01); B60G 2202/312 (2013.01); B60G 2204/1242 (2013.01); B60G 2204/128 (2013.01); B60G 2204/40 (2013.01); B60G 2206/012 (2013.01); B60G 2206/7104 (2013.01); B60G 2206/81 (2013.01); B60G 2800/162 (2013.01); F16F 2224/02 (2013.01); F16F 2226/04 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A dust cover that is formed of a thermoplastic resin, that is configured to cover an outer side of a damper extending in a predetermined direction, and that is substantially cylindrical, the dust cover comprising:
bellows portions that are formed in a predetermined section in an axial direction in the dust cover, that are inclined alternately toward a radially outer side and a radially inner side in the axial direction, that each has a radially outer end thinner than a radially inner end, and that are configured to expand and contract in the axial direction;
a flange portion that is formed at a predetermined position in the axial direction of the dust cover and extends radially outward from a cylindrical portion of the dust cover; and
a protrusion that forms one end of the dust cover in the axial direction and protrudes from the flange portion to one side in the axial direction,
wherein the flange portion protrudes radially outward from the cylindrical portion of the dust cover by a dimension larger than a height dimension in a radial direction between the radially inner end and the radially outer end of each of the bellows portions,
wherein a thickness of the flange portion is larger than a thickness of the radially outer end of each of the bellows portions, and
wherein the flange portion is disposed at one end side of the dust cover in the axial direction.