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EP0133704A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Connecting structure for two members

Assignee: Hitachi Ltd
•
Filing: 1984-08-09
•
Granted: —
•
Expires: 2004-08-09
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Abstract

Abstract A cylindrical member (1) is fitted into a recess formed in a surface of a flat member (2) which is placed opposite one 9nd of said cylindrical member. Preferably, a plurality of annular grooves (1B) are formed in the surface of one end portion of the cylindrical member (1) and the bottom of the grooved portion is provided with knurled portion (1C). A portion of the flat portion placed in the vicinity of the grooved portion is pressed in the axial direction of the cylindrical member (1) and a portion of the flat member (2) is plastically deformed into the grooved and knurled portion of the cylindrical member (1), whereby the cylindrical member (1) is connected to the flat member (2) with a butt joint.

Inventors

  • 👤 Kazuo Sawahata
  • 👤 Masaharu Oku
  • 👤 Kazuhiro Tsuruoka
  • 👤 Hisanobu Kanamaru

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-02 19:57
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/06

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 116 words
A connecting structure for two members comprising a first member (1) and a second member (2) placed opposite one end of said first member, said first member being fitted into a recess (2A) formed in a surface of said second member (2), at least one annular groove (1B) is formed on a surface of either of said first member (1) or said second member (2), and a portion of said first member (1) or said second member (2) is plastically deformed into said at least one annular groove (1B), whereby said first and second members are connected together by the binding force generated in the section of said one of said members surrounding said grooved portion.
Claim 2
Dependent Claim 116 words
A connecting structure for two members comprising a first member (1) and a second member (2) placed opposite one end of said first member, said first member being fitted into a recess (2A) formed in a surface of said second member (2), at least one annular groove (1B) is formed on a surface of either of said first member (1) or said second member (2), and a portion of said first member (1) or said second member (2) is plastically deformed into said at least one annular groove (1B), whereby said first and second members are connected together by the binding force generated in the section of said one of said members surrounding said grooved portion.
Claim 3
Dependent Claim 101 words
The connecting structure for two members according to claim 1, wherein said first member (1) is a bottomed (1A) cylindrical part provided with annular grooves (1B) around the outer circumferential surface of an end portion thereof, said grooved end portion thereof is fitted into said recess (2A) in said second member (2), said second member is pressed locally in the axial direction along the outer circumferential surface of said first member (1) so that it is deformed plastically into the grooved portion of said outer circumferential surface of said first member, whereby said second member is connected with said first member.
Claim 4
Dependent Claim 22 words
inner circumferential surface of said recess (32A) in said second member (32), whereby said first member is connected to said second member.
Claim 5
Dependent Claim 22 words
inner circumferential surface of said recess (32A) in said second member (32), whereby said first member is connected to said second member.
Claim 6
Dependent Claim 28 words
The connecting structure for two members according to any one of claims 1-3, wherein said grooved portion is provided with indented portion (1C, 32C) at the bottom thereof.

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