CYLINDER DEVICE AND METHOD FOR MANUFACTURING CYLINDER DEVICE

• US 20190309816A1
• Filed: 07/31/2017
• Published: 10/10/2019
• Est. Priority Date: 08/09/2016
• Status: Active Grant

• Current Assignee: KYB Corp.
• Original Assignee: KYB Corp.
• Inventors: SHIBATA, Yoshihiro, INAGAKI, Yasuhiro
• Granted Patent: US 11,300,173 B2
• Time in Patent Office: Days
• CPC Class Codes: B23K 2101/006 Vehicles
• CPC Class Codes: B60G 13/005 characterised by the mounting on the axle or suspension arm of the damper unit
• CPC Class Codes: B60G 13/08 hydraulic
• CPC Class Codes: B60G 2204/129 Damper mount on wheel suspension or knuckle
• CPC Class Codes: B60G 2206/41 Dampers
• CPC Class Codes: B60G 2206/8201 by welding
• CPC Class Codes: F16F 2226/048 Welding
• CPC Class Codes: F16F 9/32 Details
• CPC Class Codes: F16F 9/3235 of cylinders F16F9/483 takes precedence
• CPC Class Codes: F16F 9/54 Arrangements for attachment grommet-type rubber mounting springs per se F16F1/3732; construction of cylinder ends F16F9/3242; attachments to vehicles B60G13/001, B60G15/00

Abstract

A bracket of a cylinder device includes: a tubular portion having a C-shaped cross section, holding an outer periphery of the outer shell, and having a slit in a front portion; and a pair of mounting portions and protruding outward in the radial direction from both ends of the tubular portion in the circumferential direction. The tubular portion includes a hole formed to permit insertion of the protrusion, from at least one side portion to the back portion of the tubular portion.

Claims

1. A cylinder device comprising:

a tubular outer shell;

a protrusion provided on a side portion of the outer shell and protruding outward in a radial direction; and

a bracket attached to an outer periphery of the outer shell,

wherein the bracket includes;

a tubular portion having a C-shaped cross section, holding the outer periphery of the outer shell, and having a slit at a front portion; and

a pair of mounting portions protruding outward in the radial direction from both ends in a circumferential direction of the tubular portion, and

the tubular portion includes a hole being formed to permit insertion of the protrusion, from at least one side portion to a back portion of the tubular portion.

2. The cylinder device according to claim 1,

wherein the hole is formed up to a position to face the slit in a diametrical direction of the tubular portion.

3. The cylinder device according to claim 1,

wherein an axial length of a portion of the hole, located at a back portion of the tubular portion, is longer than an axial length of a portion of the hole, located at a side portion of the tubular portion.

4. The cylinder device according to claim 1,

wherein a shape of the hole is bilaterally symmetrical with respect to an axis passing through the tubular portion in a state where the tubular portion is disposed to set the axis passing through the center of the tubular portion to extend in a vertical direction and in a state where the front portion of the tubular portion faces the front.

5. A method for manufacturing a cylinder device,

the cylinder device including:

a tubular outer shell;

a protrusion provided on a side portion of the outer shell and protruding outward in a radial direction; and

a bracket attached to an outer periphery of the outer shell,

the bracket including;

a tubular portion having a C-shaped cross section, holding the outer periphery of the outer shell, having a slit at a front portion, and including a hole being formed to permit insertion of the protrusion from at least one side portion to a back portion of the tubular portion; and

a pair of mounting portions protruding outward in the radial direction from both ends in a circumferential direction of the tubular portion,

the method comprising executing, in order;

a protrusion welding step of welding the protrusion to the outer shell in a state where the protrusion protrudes outward from the back portion of the tubular portion;

a bracket position changing step of rotating the bracket in a circumferential direction and setting the protrusion to protrude outward from a side portion of the tubular portion; and

a bracket welding step of welding the tubular portion to the outer shell.