Floating preventive structure for shoe of tensioner lever

• US 5,184,983 A
• Filed: 04/13/1992
• Issued: 02/09/1993
• Est. Priority Date: 04/11/1991
• Status: Expired due to Term

• Current Assignee: Tsubakimoto Chain Company
• Original Assignee: Tsubakimoto Chain Company
• Inventors: Miyaji, Masaki, Shimaya, Kazuhiko
• Primary Examiner(s): Bui, Thuy M.
• Application Number:
  US07/867,861
• Time in Patent Office: 302 Days
• Field of Search: 474/101, 474/109-111, 474/113-117, 474/133-138, 474/140
• US Class Current: 474/111
• CPC Class Codes: F16H 2007/0872 Sliding members
• CPC Class Codes: F16H 2007/0893 Circular path
• CPC Class Codes: F16H 7/08 Means for varying tension of belts, ropes, or chains pulleys of adjustable construction F16H55/52 ; gearings with endless belts F16H7/02; tensioning for chains or belts specially adapted for cycles B62M9/16; belt or chain tensioning arrangements for endless conveyors B65G23/44

Abstract

A tensioner lever for applying tension to an endless chain, belt or the like comprises an elongated arm and a plastic shoe, having at least one L-shaped element engaging both the back face and one side edge of the arm, at least one projection engaging the opposite side edge of the arm, and a U-shaped end hook engaging an end of the arm.

Claims

1. A tensioner lever for applying tension to an endless power transmission in the form of a chain, belt or the like, comprising:

(a) an elongated arm having a front face and a back face, both extending from a first end toward a second end, said first and second ends being positioned so that said endless power transmission passes adjacent to said front face in a direction from said first end toward said second end, and first and second side edges extending longitudinally along said elongated arm; and

(b) shoe means positioned on said front face of said elongated arm and providing a surface against which said endless power transmission is slidable, said shoe having at least one L-shaped element engaging both said back face and one of said side edges of said arm, at least one projection engaging the opposite side of said arm, and a U-shaped end hook engaging said first end of said arm;

whereby said shoe is held in position with respect to said arm against movement in the direction of movement of said endless power transmission by said U-shaped end hook, held against movement in direction lateral to movement of said endless power transmission by said projection and L-shaped element, and held against movement in a direction away from said front face of said elongated arm by said L-shaped element.