Title:
JUMP APPARATUS
Document Type and Number:
Japanese Patent JPS58218973
Kind Code:
A
Abstract:
A vaulting board is fastened at one end to a frame and slopes up under the action of two spaced apart, concave upwards, leaf springs carrying rollers on each end which contact the under side of the board. The spring centers are clamped in assemblies carrying transverse shafts at the bottom and the curved ends of J-bolts fit around the shafts and are connected to the frame, so that the springs pivot about the shafts axes under vaulting impact to equalize the stresses impressed in the board by the spring ends.
Inventors:
DEYUAN AARU RANDOBAAGU
JIYOSEFU ESU TOMASU JIYUNIA
JIYOSEFU ESU TOMASU JIYUNIA
Application Number:
JP9476783A
Publication Date:
December 20, 1983
Filing Date:
May 28, 1983
Export Citation:
Assignee:
AMF INC
International Classes:
A63B5/08; (IPC1-7): A63B5/12
Attorney, Agent or Firm:
Kazuo Sato
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