CN201129390Y

CN201129390Y - Adjustable dual spring rear shock absorber for motorcycle

Info

Publication number: CN201129390Y
Application number: CNU2007201315485U
Authority: CN
Inventors: 胡家凤
Original assignee: Nanjing Jincheng Machinery Co Ltd
Current assignee: Nanjing Jincheng Machinery Co Ltd
Priority date: 2007-12-20
Filing date: 2007-12-20
Publication date: 2008-10-08
Anticipated expiration: 2017-12-20

Abstract

The utility model discloses an adjustable double-spring rear shock absorber for motorcycles, which comprises a damper tube component and an outer spring, and an inner spring is arranged between the damper tube component and the outer spring. An inner spring guide sleeve is mounted on the outer surface of the damper tube component. The adjustable double-spring rear shock absorber for motorcycles is simple in structure, and can be applied to motorcycles with varieties of models widely. Because the inner spring and the outer spring of the shock absorber are different in stiffness, a three-section type spring stiffness curve can be obtained from an original common two-section type spring stiffness curve, thereby being capable of meeting requirements of individual riding and meeting requirements of heavy load under the condition that the stroke of the shock absorber is not changed, and when the road condition is changed, the adjustable double-spring rear shock absorber can also automatically adjust the efficient working stroke section of the shock absorber to increase the comfort of motorcycles.

Description

Adjustable double-spring rear shock absorber for Motorcycles

Technical field

The utility model relates to a kind of double barreled spring damper, is used for the rear suspension system of motorcycle.

Background technique

At present, along with the raising to the motorcycle usage requirement, motorcycle industry generally uses the spring of isometrical traitorous distance to change the spring rate of vibration damper to satisfy the requirement of travelling comfort.But owing to be subjected to the restriction of complete vehicle structure (length overall, duty volume etc.) and material itself, the rigidity of spring often can not satisfy the requirement of car load load variations and road conditions change.

Summary of the invention

Goal of the invention: the purpose of this utility model is to provide a kind of adjustable double-spring rear shock absorber for Motorcycles for the variation of variation that adapts to bearing capacity and condition of road surface.

Technological scheme: adjustable double-spring rear shock absorber for Motorcycles described in the utility model, comprise damping cartridge module and outer spring, it is characterized in that between damping cartridge module and outer spring, being provided with inner spring.

Outer surface at the damping cartridge module is equipped with the inner spring guide sleeve, with prevent vibration damper when work inner spring with damping tube surface generation metal Strike note, even shorten life-span of vibration damper.

Beneficial effect: the utility model is simple in structure, can be widely used in the motorcycle of various vehicles.Because the rigidity difference of the interior outer spring of vibration damper, can obtain the spring rate curve of 3 stops by original common two section type spring rate curve, like this under the immovable situation of the stroke of vibration damper, the requirement in the time of can either satisfying single travelling, the requirement in the time of also satisfying heavy duty; When road conditions change, also can regulate the trip segment of effective work of vibration damper automatically, the travelling comfort of motorcycle is greatly improved.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a spring characteristic curve.

Embodiment

Referring to Fig. 1, adjustable double-spring rear shock absorber for Motorcycles is to be made of upper connection 1, joint bushing pipe 2,

adapter bush

3 and 13, nut 4, outer cover 5, cushion pad 6, outer spring 7, inner spring 8, inner spring guide sleeve 9, damping cartridge module 10, lower spring fitting seat 11, spring adjustment seat 12.The outer surface of damping cartridge module 10 is equipped with inner spring guide sleeve 9, prevents that vibration damper inner spring 8 when work from producing the metal Strike note with damping tube surface, even shortens the life-span of vibration damper.Be connected in parallel by upper connection 1, lower spring fitting seat 11 between inner spring 8 of the present utility model and the outer spring 7.Inside and outside spring adopts different steel wire diameter to make, and has different two-part spring rate curves.The coefficient result of interior outer spring makes to the utlity model has 3 stops spring rate curve, and to satisfy the car load requirement under the different user modes, this is that single spring is unapproachable.

During the vibration damper assembling, can also can obtain different 3 stops spring characteristic curves, fully satisfy the car load designing requirement by the different precompressed amount of outer spring in changing.

By Regulation spring adjustment seat 12, can carry out synchronization regulation to the precompressed amount of outer spring in the vibration damper, satisfy bigger load request.

Claims

1, a kind of adjustable double-spring rear shock absorber for Motorcycles comprises damping cartridge module (10) and outer spring (7), it is characterized in that being provided with inner spring (8) between damping cartridge module (10) and outer spring (7).

2, adjustable double-spring rear shock absorber for Motorcycles according to claim 1 is characterized in that at the outer surface of damping cartridge module (10) inner spring guide sleeve (9) being housed.