Holding structure of intervening member, intervening member, and wobbling-prevention member

Patent metadata

Field	Value
Publication number	US-9212736-B2
Application number	US-201213407212-A
Country	US
Kind code	B2
Filing date	Feb 28, 2012
Priority date	Mar 1, 2011
Publication date	Dec 15, 2015
Grant date	Dec 15, 2015

Abstract

A holding structure of an intervening member is provided for preventing the dropping-out of a wobbling-prevention member at an assembly time, and to extend an applicable range of rigidity of the intervening member to a low-side range. The holding structure of the intervening member includes a baffle plate intervened between a torque converter housing wall and an intervening member, and a wobbling-prevention member interposed between the baffle plate and the torque converter housing wall in a compressed state. A bottom portion of a concave portion is clamped between a head portion and a bulging portion of the wobbling-prevention member. Also, an inside of the head portion is hollow, so when the head portion is crushed and deformed, the air inside the head portion is discharged to the outside through an annular gap to reduce a compressive load relative to the baffle plate.

First claim

What is claimed is:

1. A holding structure of an intervening member, comprising:
a first member;
a second member provided parallel to the first member;
the intervening member provided between the first member and the second member, and having a supporting plate portion facing the first member or the second member, the supporting plate portion having a through-bore with an axis center extending in a direction perpendicular to the first and second members; and
an elastically deformable wobbling-prevention member provided between the intervening member and at least one of the first and second members in a compressed state to prevent the intervening member from wobbling;
wherein the wobbling-prevention member integrally includes:
an axis portion slidably passing through the through-bore of the supporting plate portion, and having one end portion positioned on a side of the first member relative to the supporting plate portion, and another end portion positioned on a side away from the first member relative to the supporting plate portion, the axis portion being slidably displaceably fitted in the through-bore of the supporting plate portion;
an elastic head portion integrally provided on the one end portion of the axis portion, with a radius thereof expanding from the one end portion to the supporting plate portion and a height thereof reducing from a center toward an outer peripheral edge portion thereof, the center thereof being highest so that when an external force is received, the center of the elastic head portion abuts against the first member, and the outer peripheral edge portion of the elastic head portion abuts against the supporting plate portion to prevent the intervening member from wobbling; and
a bulging portion formed on the side of the another end portion of the axis portion relative to the supporting plate portion and having a radius thereof expanding more than a radius of the through-bore, said bulging portion being elastic to pass through the through-bore and clamping the supporting plate portion in cooperation with the elastic head portion,
the axis portion is positioned in a loosely fitted state relative to the through-bore to form an annular gap between the axis portion and an inner peripheral surface of the through-bore; and an internal space inside the elastic head portion faces an outside through the annular gap,
the intervening member further comprises a concave portion having a bottom portion as the supporting plate portion arranged with the through-bore, and a sidewall portion defining an inner peripheral edge of the concave portion, and the elastic head portion of the wobbling prevention member protrudes outside of an opening of the concave portion beyond the sidewall portion of the concave portion from the inside of the concave portion to abut the first member, and
the intervening member further comprises a control wall portion extending perpendicular to the supporting plate portion; and the supporting plate portion comprises a connection wall portion extending parallel to the first member to face the first member and connected to the control wall portion, and a supporting portion protruding toward the first member, the supporting portion having the concave portion with the through-bore.

2. A holding structure of an intervening member according to claim 1 , wherein
the supporting portion extends outwardly than the connection wall portion parallel to the first member.

3. A holding structure of an intervening member according to claim 2 , wherein the radius of the outer peripheral edge portion of the elastic head portion is smaller than that of the sidewall portion of the concave portion so that an annular space is formed between the elastic head portion and the sidewall portion of the concave portion.

Assignees

• Okuta Tomohide
• Miyamoto Seiji
• Shinohara Masako
• Nifco Inc

Inventors

• Okuta Tomohide
• Miyamoto Seiji
• Shinohara Masako

Classifications

• F16H57/0457 Primary

  Splash lubrication · CPC title

• F16B21/086

  the shank of the stud, pin or spigot having elevations, ribs, fins or prongs intended for deformation or tilting predominantly in a direction perpendicular to the direction of insertion · CPC title

• F16H57/0423

  Lubricant guiding means mounted or supported on the casing, e.g. shields or baffles for collecting lubricant, tubes or pipes · CPC title

• Y10T74/2186

  Gear casings · CPC title