Engine cover

Patent metadata

Field	Value
Publication number	US-9816460-B2
Application number	US-201414550179-A
Country	US
Kind code	B2
Filing date	Nov 21, 2014
Priority date	Sep 11, 2012
Publication date	Nov 14, 2017
Grant date	Nov 14, 2017

Abstract

The present invention provides an engine cover that can be manufactured easily and at a lower cost and has an attachment member that is high in quality and may not easily fall off. The engine cover has a cover body made of urethane foam, a skin layer disposed on a surface of the cover body, and an attachment member made of an elastic body and integrally molded with the cover body. The attachment member has a recess into which an attachment pin provided to project from an engine member is fitted, and a sealing portion that is provided to project at least one of the opening end surface of the recess and the side surface of the opening end part of the recess and that suppresses entry of a foamed urethane resin material that forms the cover body into the recess during integral molding.

First claim

The invention claimed is:

1. An engine cover comprising:
a cover body made of urethane foam,
a skin layer disposed on a surface of the cover body, and
a solid attachment member made of an elastic body and integrally molded with the cover body, wherein
the attachment member has a recess into which an attachment pin provided to project from an engine member is fitted, and a sealing portion that is provided to project from at least one of an opening end surface of the recess and a side surface of an opening end part of the recess and that suppresses entry of a foamed urethane resin material that forms the cover body into the recess during integral molding,
the recess has a taper portion and a housing portion, the taper portion is disposed so that a diameter of the taper portion is reduced in a depth direction from the opening end surface of the recess, and the housing portion has a generally spherical shape and is disposed on a deeper side with respect to the taper portion in the depth direction of the recess, and
the attachment member has a closed end surface on an opposite side of the opening end surface of the recess such that the recess only partially penetrates the attachment member in the depth direction
wherein
the sealing portion includes a sealing flange disposed on the opening end part of the recess, and
the attachment member has a solid body portion that is continuous in the depth direction of the recess between the opening end surface and the closed end surface, wherein the solid body portion has a thickness that is equal to or more than a length of the sealing flange in a radial direction.

2. The engine cover according to claim 1 , wherein
the sealing portion includes a projection disposed in a ring shape around an opening of the recess on the opening end surface of the recess, and
wherein the attachment member is continuously solid from the projection to the closed end surface.

3. The engine cover according to claim 1 , wherein
the attachment member has a thinning portion around the recess.

4. The engine cover according to claim 3 , wherein
the attachment member has a reinforcement rib extending from a periphery of the recess through the thinning portion.

5. The engine cover according to claim 1 , wherein
the attachment member has a fixing flange on an end part on the opposite side from the opening end part of the recess.

6. The engine cover according to claim 1 , wherein
the attachment member is made of thermoplastic elastomer, which can be adhered to the cover body by integral molding.

7. The engine cover according to claim 6 , wherein
the thermoplastic elastomer is urethane elastomer.

8. The engine cover according to claim 2 , wherein
the projection is provided to project in an opposite direction from the depth direction of the recess, and has a semi-spherical shape in cross section.

Assignees

• Sumitomo Riko Co Ltd
• Tokai Chemical Ind

Inventors

• Kondo Hiroyuki
• Ishii Kimio

Classifications

• B60R13/0838

  for engine compartments · CPC title

• F02B77/13

  Acoustic insulation · CPC title

• B29K2075/00

  Use of {PU, i.e.} polyureas or polyurethanes {or derivatives thereof}, as moulding material · CPC title

• B29C44/14

  the preformed part being a lining {(B29C44/1209 takes precedence)} · CPC title

• B60R2013/0807

  Arrangements of fasteners or clips specially adapted therefore · CPC title