Swing-arm device for a vehicle lift

• US 4,212,449 A
• Filed: 10/03/1978
• Issued: 07/15/1980
• Est. Priority Date: 12/22/1977
• Status: Expired due to Term

• Current Assignee: Yasui Sangyo Company Limited
• Original Assignee: Yasui Sangyo Company Limited
• Inventors: Tsujimura, Tozaburo
• Primary Examiner(s): Watson, Robert C.
• Application Number:
  US05/948,204
• Time in Patent Office: 651 Days
• Field of Search: 187/8.41, 187/8.59, 187/8.75, 254/89 R, 254/89 H, 254/134
• US Class Current: 187/215
• CPC Class Codes: B66F 7/04 hydraulically or pneumatically operated

Abstract

A swing-arm device for a two-pillar vehicle lift is disclosed, which comprises a first arm fixed pivotally about a vertical axis at its one end to a carriage which rides up and down on a pillar of the lift, and a second arm fixed pivotally about a vertical axis at its one end to the other end of the first arm remote from the carriage, the other end of the second arm remote from the first arm supporting the under side of the vehicle. Further, locking devices are provided which lock the pivoting of the first arm with respect to the carriage, and of the second arm with respect to the first arm.

Claims

1. In a vehicle lift in which a carriage is raised and lowered up and down a support pillar, a swing arm device for supporting a vehicle comprising:

(a) a first arm having first and second ends disposed substantially horizontally, its first end being pivotally coupled about a vertical axis to said carriage;

(b) a second arm having a first and second end disposed substantially horizontally, the first end thereof being pivotally coupled to the second end of the first arm, the pivotal coupling between said first and second arms being remote from the carriage and about a vertical axis, the second end of said second arm being adapted to support a vehicle;

(c) a first locking member including a first strut which extends substantially perpendicular to the axis of the pivotal coupling intermediate the carriage and said first arm and first locking means for adjustably fixing the distance between two points located on said carriage and said first arm, respectively, substantially away from the axis of said pivotal coupling, said first locking means being coupled to said first strut whereby the pivoting of said first locking arm is locked; and

(d) a second locking member including a second strut which extends substantially perpendicular to the axis of the pivotal coupling intermediate the first and second arms and second locking means for adjustably fixing the distance between two points located on said first arm and said second arm, respectively, substantially away from the axis of said pivotal coupling, said second locking means being coupled to said second strut whereby the pivoting of said second arm is locked.