IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0313943
(2005-12-22)
|
등록번호 |
US-7640905
(2010-02-11)
|
우선권정보 |
JP-P2004-381936(2004-12-28) |
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
5 |
초록
▼
In an engine cover mounting structure, an internal portion of an elastic member comprises a small diameter hole portion having a small inside diameter and a large diameter hole portion having a large inside diameter which continues to the small diameter hole portion, the relationship between an outs
In an engine cover mounting structure, an internal portion of an elastic member comprises a small diameter hole portion having a small inside diameter and a large diameter hole portion having a large inside diameter which continues to the small diameter hole portion, the relationship between an outside diameter W1 of a head portion which engages with the elastic member and an inside diameter W2 of the small diameter hole portion is set to be W1>W2, and the relationship between an inside diameter W3 of the large diameter hole portion and an outside diameter W4 of a leg portion is set to be W3≧W4, the large diameter hole portion and the small diameter hole portion are made to communicate with each other in a step-like fashion, and at least part of a portion to be restrained is provided on an outer circumferential side of the large diameter hole portion.
대표청구항
▼
What is claimed is: 1. An engine cover mounting structure comprising: an engine member having a frame, which projects from the engine member, wherein the frame has a proximal portion, which is fixed to the engine member, and a distal portion which is spaced apart from the engine member; an engine c
What is claimed is: 1. An engine cover mounting structure comprising: an engine member having a frame, which projects from the engine member, wherein the frame has a proximal portion, which is fixed to the engine member, and a distal portion which is spaced apart from the engine member; an engine cover having an elongated coupling member that is integrally formed with the engine cover, and an elastic member, wherein the elastic member and the elongated coupling member form a separable coupling, the elastic member has a first end, which faces away from the engine member, and a second end, which faces toward the engine member, the elastic member is inserted in the distal portion of the frame so that the second end of the elastic member is spaced apart from and prevented from contacting the engine member by the proximal portion of the frame, the elongated coupling member comprises a distal portion and a proximal portion, and the proximal portion includes a leg portion and the distal portion includes a head portion, the proximal portion is joined to an inner surface of the engine cover, the head portion is formed at the distal portion of the elongated coupling member, the leg portion is located between the head portion and the inner surface of the engine cover, the head portion has a larger diameter than that of the leg portion, the head portion is spaced apart from the inner surface of the engine cover by the proximal portion of the elongated coupling member, the frame includes an end opening and a restraining portion, the elastic member further comprises: a large diameter hole portion, which opens at the first end of the elastic member; a small diameter hole portion, which opens at the second end of the elastic member, and the small diameter hole portion has a smaller inside diameter than an inside diameter of the large diameter hole portion; and an engagement recess, which receives the restraining portion to retain the elastic member at the distal portion of the frame, a distal end portion of the elongated coupling member is adapted to be inserted into the large diameter hole portion from the first end of the elastic member towards the small diameter hole portion, so that the head portion passes through the large diameter hole portion and the small diameter hole portion and extends outside of the elastic member from the second end of the elastic member, and the distal portion of the elongated member is held by the elastic member to couple the engine cover to the frame, a relationship between an outside diameter W1 of the head portion and the inside diameter W2 of the small diameter hole portion is expressed as W1>W2, and a relationship between the inside diameter W3 of the large diameter hole portion and an outside diameter W4 of the leg portion is expressed as W3≧W4, and the large diameter hole portion and the small diameter hole portion communicate with each other. 2. The engine cover mounting structure according to claim 1, wherein the engagement recess is provided at a position excluding an end portion of the small diameter hole portion lying opposite to the large diameter hole portion. 3. The engine cover mounting structure according to claim 1, wherein an axial length of the small diameter hole portion is shorter than an axial length of the large diameter hole portion. 4. The engine cover mounting structure according to claim 1, wherein the engagement recess lies adjacent to the small diameter hole portion with respect to an axial positional relationship. 5. The engine cover mounting structure according to claim 3, wherein the whole of the engagement recess is provided on the outer circumferential side of the large diameter hole portion. 6. The engine cover mounting structure according to claim 1, wherein the engagement recess does not overlap the small diameter hole portion in the axial direction. 7. The engine cover mounting structure according to claim 1, wherein a relationship between the outside diameter W1 of the head portion and the inside diameter W3 of the large diameter hole portion is W1≦W3. 8. The engine cover mounting structure according to claim 1, wherein an axial length of the small diameter hole portion is shorter than an axial length of the large diameter hole portion. 9. The engine cover mounting structure according to claim 1, wherein a relationship between an axial length H1 of the small diameter hole portion and an axial length H3 of the large diameter hole portion excluding the positioning end is expressed as H1≦H3. 10. The engine cover mounting structure according to claim 1, wherein the leg portion includes a rib that is in contact with the elastic member to position the mounting portion and the portion to be mounted with respect to each other. 11. An engine cover mounting structure comprising: an engine member having a frame, wherein the frame includes a proximal portion, which is fixed to the engine member, and a distal portion, which is spaced apart from the engine member by the proximal portion of the frame; an engine cover, which is adapted to be attached to the distal portion of the frame to cover the engine member; an elongated projection that is integrally formed with the engine cover, wherein a proximal portion of the elongated projection is joined to an inner surface of the engine cover, and a distal portion of the elongated projection is spaced apart from the inner surface of the engine cover, and an elastic member, which is adapted to fit between the frame and the elongated projection when the engine cover is attached to the frame, so that the engine cover is supported by the elastic member and separated from the frame and the engine member by the elastic member, wherein the elastic member has a first end and a second end, which are opposite to one another, and the first end faces away from the engine member and the second end faces the engine member, the proximal portion of the elongated projection includes a leg portion, and a distal portion of the elongated projection includes a head portion, so that the head portion is spaced apart from the inner surface of the engine cover by the proximal portion of the elongated projection, the head portion is larger in diameter than the leg portion, the distal portion of the frame includes an end opening and a restraining portion, in which the end opening is defined, the elastic member is retained by the restraining portion so that the second end of the elastic member is spaced apart and is prevented from contacting the engine member, the elastic member includes a hole, which has a large diameter section, which opens at the first end of the elastic member, and a small diameter section, which opens at the second end of the elastic member, the elastic member includes an engagement portion, which is received by the end opening so that the engagement portion is held by the restraining portion, the small diameter section has a smaller inside diameter than an inside diameter of the large diameter section; the large diameter section and the small diameter section are coaxial, the elastic member is located and arranged to receive the elongated projection first in the large diameter section and subsequently by the small diameter section, so that the head portion of the elongated projection extends from the second end of the elastic member outside of the small-diameter hole, and the proximal end of the elongated projection is spaced apart from the elastic member in an axial direction of the elongated member after the elongated projection is fully received by the elastic member, and a relationship between an outside diameter W1 of the head portion and the inside diameter W2 of the small diameter section is expressed as W1>W2, and a relationship between the inside diameter W3 of the large diameter section and an outside diameter W4 of the leg portion is expressed as W3≧W4. 12. The engine cover mounting structure according to claim 11, wherein the elastic member is constructed and arranged on the frame to prevent the elongated projection from directly contacting the engine member or the frame.
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