Title:
STRUT FOR CAR STOP
Document Type and Number:
Japanese Patent JPH1171729
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To prevent damage by the lock pin of an inner pipe to an outer pipe by vibrations during transport. SOLUTION: The strut for the car stop is composed of an outer pipe 10 buried into a ground and an inner pipe 20 detachably installed into the outer pipe 10. A cushioning member 30 abutted against the lower end of the inner pipe 20 when the inner pipe 20 is dropped into the outer pipe 10 is mounted on the bottom plate 15 of the outer pipe 10, and an engaging groove is formed to the inner circumferential surface of the upper-end opening section of the outer pipe 10 while a lock pin 21 being engaged with the engaging groove of the outer pipe 10 and stopping the dropping operation of the inner pipe 20 while preventing slipping-off from the outer pipe 10 is projected from the outer circumferential surface of the lower end section of the inner pipe 20. A core-displacement preventive barrier section 31 controlling the outer periphery of the lower end of the inner pipe 20 and preventing core displacement to the outer pipe 10 of the inner pipe 20 is formed to the outer circumferential section of the top face of the cushioning member 30 at that time.
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Inventors:
ASAKI RYOJI
Application Number:
JP23342397A
Publication Date:
March 16, 1999
Filing Date:
August 29, 1997
Export Citation:
Assignee:
HOKUDEN KOGYO KK
International Classes:
E01F13/00; (IPC1-7): E01F13/00
Attorney, Agent or Firm:
Akiyama Hoomi (2 outside)