Assembly for air spring, air spring, and carriage for vehicle

Patent metadata

Field	Value
Publication number	US-2016252153-A1
Application number	US-201415027308-A
Country	US
Kind code	A1
Filing date	Oct 6, 2014
Priority date	Oct 7, 2013
Publication date	Sep 1, 2016
Grant date	—

Abstract

Each of an assembly for air spring, an air spring, and a carriage for vehicle includes: a first supporting member; a second supporting member arranged to be spaced away from the first supporting member in a main load direction; and an adjusting member connected to the first supporting member and the second supporting member in a plane crossing the main load direction, the adjusting member having anisotropy in elastic property in the plane crossing the main load direction.

First claim

1 . An assembly for air spring, comprising:
a first supporting member; a second supporting member arranged to be spaced away from the first supporting member in a main load direction; and an adjusting member connected to the first supporting member and the second supporting member in a plane crossing the main load direction, the adjusting member having anisotropy in elastic property in the plane.

2 . The assembly for air spring according to claim 1 , further comprising an outer cylinder between the first supporting member and the second supporting member, wherein
the adjusting member is arranged inside the outer cylinder.

3 . The assembly for air spring according to claim 2 , wherein the outer cylinder includes an outer annular stopper having an elastic member.

4 . The assembly for air spring according to claim 3 , wherein at least one of the first supporting member and the second supporting member includes an inclination portion that provides resistance against deformation of the outer annular stopper in a direction in which the adjusting member is connected to the first supporting member and the second supporting member.

5 . The assembly for air spring according to claim 3 , wherein the outer annular stopper has a stack in which an elastic body and an hard member are stacked alternately.

6 . The assembly for air spring according to claim 5 , wherein the hard member has an inclination portion that provides resistance against deformation of the outer annular stopper in a direction in which the adjusting member is connected to the first supporting member and the second supporting member.

7 . The assembly for air spring according to claim 3 , wherein a recess is provided at a portion of an inner side of the outer annular stopper, and
wherein at least a portion of the adjusting member extends into the recess.

8 . The assembly for air spring according to claim 3 , wherein the outer annular stopper has a substantially isotropic shape in the plane crossing the main load direction.

9 . The assembly for air spring according to claim 2 , wherein the outer cylinder includes a supporting pillar and a sliding member, and
wherein the sliding member is provided between the second supporting member and the supporting pillar.

10 . The assembly for air spring according to claim 2 , further comprising an inner annular stopper having an elastic member,
wherein at least a portion of the inner annular stopper extends to an inner space of the outer cylinder.

11 . The assembly for air spring according to claim 1 , wherein the first supporting member includes a carriage side spigot, and
wherein the adjusting member is connected to the carriage side spigot and the second supporting member.

12 . The assembly for air spring according to claim 1 , wherein at least one of the first supporting member and the second supporting member includes a wall, and
wherein the adjusting member is connected to the wall.

13 . The assembly for air spring according to claim 1 , wherein the adjusting member includes an elastic member arranged in a direction in which the adjusting member is connected to the first supporting member and the second supporting member.

14 . The assembly for air spring according to claim 13 , wherein the elastic member has a stack in which a plurality of elastic bodies are stacked in the direction in which the adjusting member is connected to the first supporting member and the second supporting member.

15 . An air spring comprising:
the assembly for air spring as recited in claim 1 ; a third supporting member; and an elastically deformable diaphragm that forms a closed space by connecting the second supporting member and the third supporting member to each other.

16 . The air spring according to claim 15 , wherein the third supporting member has a cover that restricts movement of the diaphragm in the direction in which the adjusting member is connected to the first supporting member and the second supporting member.

17 . A carriage for vehicle, comprising the assembly for air spring as recited in claim 1 .

Assignees

• Sumitomo Electric Industries
• Kawasaki Heavy Ind Ltd

Inventors

• Haraguchi Hirokazu
• Yoshida Jun
• Isomura Kazuo
• Tojo Takanori
• Sakahira Masahiro
• Shirasaki Jun
• Maeba Tomohide
• Hikosaka Naoki

Classifications

• F16F9/052

  characterised by the bumper · CPC title

• F16F9/05

  the flexible wall being of the rolling diaphragm type · CPC title

• F16F9/057 Primary

  characterised by the piston · CPC title

• B61F5/10

  incorporating fluid springs · CPC title

• F16F1/40 Primary

  consisting of a stack of similar elements separated by non-elastic intermediate layers {(F16F9/306 takes precedence; laminated constructions to protect buildings against abnormal external influences, e.g. earthquakes, E04H9/022)} · CPC title