Suspension device

• US 10,358,009 B2
• Filed: 03/30/2016
• Issued: 07/23/2019
• Est. Priority Date: 03/31/2015
• Status: Active Grant

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company), KYB Corp., Sumitomo Riko Company Limited.
• Original Assignee: KYB Company Limited (Kayaba Industry Company Limited)
• Inventors: Miwa, Masahiro, Ando, Kazuma, Ohta, Yasutaka
• Primary Examiner(s): Schwartz, Christopher P
• Application Number:
  US15/562,417
• Publication Number:
  US 20180105004A1
• Time in Patent Office: 1,210 Days
• Field of Search: 267220, 267221, 280124164, 280124179
• CPC Class Codes: B60G 11/16 characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
• CPC Class Codes: B60G 15/06 and fluid damper
• CPC Class Codes: B60G 15/063 characterised by the mounting of the spring on the damper B60G15/065, B60G15/066 take precedence
• CPC Class Codes: B60G 2202/312 The spring being a wound spring
• CPC Class Codes: B60G 2204/1242 on a damper, e.g. MacPerson strut
• CPC Class Codes: F16F 1/12 Attachments or mountings F16F1/041, F16F13/02 take precedence; of combinations of vibration damper and mechanical spring for vehicle suspension units B60G15/02
• CPC Class Codes: F16F 1/126 comprising an element between the end coil of the spring and the support proper, e.g. an elastomeric annulus F16F1/13 takes precedence
• CPC Class Codes: F16F 9/32 Details
• 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 rubber sheet includes: a main body fitted to a mounting portion formed so as to be depressed at the spring guide, the main body supporting a coil spring; and lips formed to project from respective side surfaces of an inner periphery and an outer periphery of the main body in a radial direction, the lips being configured to abut on the spring guide to prevent a foreign matter from invading between the main body and the mounting portion.

Claims

1. A suspension device, comprising:

a shock absorber configured to be disposed between a vehicle body and a wheel;

an upper mount mounted on a distal end of a rod of the shock absorber;

a spring guide mounted on an outer peripheral surface of the shock absorber;

a coil spring disposed between the spring guide and the upper mount for elastically supporting the vehicle body; and

a rubber sheet disposed between the coil spring and the spring guide, the rubber sheet has an arc shape or an annular shape, wherein

the rubber sheet includes;

a main body fitted to a mounting portion of the spring guide to support the coil spring, the mounting portion having an annular shape; and

lips projecting from respective side surfaces of an inner periphery and an outer periphery of the main body in a radial direction, wherein the lips abut on the spring guide to prevent foreign matter from invading between the main body and the mounting portion,

the spring guide includes;

a protrusion projecting toward the upper mount; and

an outer circumference having an annular-shape and arranged at an outside of the mounting portion in the radial direction,

the lips include;

an inner-peripheral-side lip projecting inwardly in the radial direction from a side surface at an inner peripheral side of the main body; and

an outer-peripheral-side lip projecting outwardly in the radial direction from a side surface at an outer peripheral side of the main body, and

during extension and contraction of the coil spring, the inner-peripheral-side lip and the outer-peripheral-side lip are kept abutted on the protrusion and the outer circumference of the spring guide, respectively, from above.

2. The suspension device according to claim 1, wherein

the lips are disposed throughout a whole circumference of at least one of the inner periphery and the outer periphery of the main body.

3. The suspension device according to claim 1, wherein the rubber sheet further comprises

a rising portion disposed on the inner peripheral side of the main body and projecting toward the upper mount to support an inner periphery of the coil spring.

4. The suspension device according to claim 1, wherein

a bottom surface of the main body of the rubber sheet abuts on the mounting portion of the spring guide over an entire surface of the bottom surface of the main body of the rubber sheet.

5. The suspension device according to claim 1, wherein

the inner-peripheral-side lip and the outer-peripheral-side lip are formed so as to be inclined to the protrusion and the outer circumference sides, respectively.