Title:
AXLE SPRING
Document Type and Number:
Japanese Patent JP2018100759
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an axle spring capable of readily hardening a spring constant in initial of a cushion stroke or at a front half thereof, and capable of meeting a request for making the spring constant high without increasing maximum load resistance, with a devised structure.SOLUTION: An axle spring has: a main shaft 1; an outer cylinder 2 disposed in a state of surrounding the main shaft 1; and an elastic part 3 where a plurality of elastic material layers 4a, 4b, 4c and one or more hard material walls 5a, 5b are alternately laminated in radially inward and outward direction with respect to a shaft center P, and which is interposed between the main shaft 1 and the outer cylinder 2. An outer peripheral surface 1a of the main shaft and an inner peripheral surface 2a of the outer cylinder 2 are formed into a conical surface so that they are inclined at the same first angle θ1 to the shaft center P. A second angle θ2 at which the hard material walls 5a, 5b are inclined to the shaft center P is set larger than the first angle θ1.SELECTED DRAWING: Figure 2
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Inventors:
SHINOHARA KATSUYUKI
Application Number:
JP2016248402A
Publication Date:
June 28, 2018
Filing Date:
December 21, 2016
Export Citation:
Assignee:
TOYO TIRE & RUBBER CO
International Classes:
F16F15/04; B61F5/30; F16F1/41
Attorney, Agent or Firm:
Shoji Suzue