CN2547892Y

CN2547892Y - Hand-pulling recoil starter scroll spring

Info

Publication number: CN2547892Y
Application number: CN 02237626
Authority: CN
Inventors: 涂建华
Original assignee: LONGXIN GROUP CO Ltd
Current assignee: LONGXIN GROUP CO Ltd
Priority date: 2002-06-21
Filing date: 2002-06-21
Publication date: 2003-04-30
Anticipated expiration: 2012-06-21

Abstract

A hand-pulling recoil starter scroll spring comprises a startup disk hook 1, a scroll spring 2 and a startup disk pillar 3, wherein, the two ends of the scroll spring 2 bend; the startup disk hook 1 is connected with the inner end of the scroll spring 2; the length of the contacting part of the scroll spring 2 with the startup disk hook 1 is prolonged properly to be between one fourth and one second of the perimeter of the startup disk pillar 3, and is bent into a semi-crescent shape matching the shape of the startup disk pillar 3; therefore, the spring can be hooked on the startup disk hook 1 more firmly, and when the recoil starter returns and rebounds, the scroll spring 2 does not fall off to cause the starter to lose effectiveness, thereby improving the reliability of the recoil starter.

Description

Pull recoil starter spiral spring

Technical field

The utility model relates to a kind of starter spiral spring that recoils that pulls that is used for motor.

Background technique

The existing structure that pulls recoil starter spiral spring as shown in Figure 1, comprise boot disk hook 1, spiral spring 2 and boot disk post 3, the two ends bending of spiral spring 2, boot disk hook 1 links to each other with the inner of spiral spring 2, the part but spiral spring 2 and boot disk hook 1 contacts is because shape and shorter linearly, in starter stay cord return process, this plane scroll spring is because the effect of rebounding force, be easy to come off from the boot disk hook, thereby cause starter to lose efficacy, influenced the reliability of engine start.

Summary of the invention

The purpose of this utility model be to provide a kind of can overcome the defective that exists in the prior art pull recoil starter spiral spring, pull the shape of recoil starter spiral spring by change, make it hang over more securely on the boot disk hook.

The purpose of this utility model is achieved in that a kind of recoil starter spiral spring that pulls, and comprises boot disk hook 1, spiral spring 2 and boot disk post 3, the two ends bending of spiral spring 2, and boot disk hook 1 links to each other with the inner of spiral spring 2; Described spiral spring 2 is suitably extended with the length that boot disk hook 1 contacts part, making described spiral spring 2 and boot disk link up with 1 length that contacts part is between the 1/4--1/2 girth of boot disk post 3, and it is bent into half crescent shape that is complementary with described boot disk post 3 shapes.

In the utility model, this pulls recoil starter spiral spring the length of its spring carrier arm part has been carried out suitable extension, and it is bent into half crescent shape that the shape with the boot disk post is complementary, thereby can make this spring hang over more securely on the hook of boot disk, when the bounce-back of recoil starter return, this spiral spring also can not come off and cause starter to lose efficacy, and has improved the reliability of recoil starter effectively.

Description of drawings

Fig. 1 is the structural representation that pulls recoil starter spiral spring in the prior art;

Fig. 2 is the structural representation that pulls recoil starter spiral spring in the utility model.

Embodiment

Below in conjunction with drawings and Examples the utility model is further described.

See also accompanying drawing 2, the recoil starter spiral spring that pulls of the present utility model comprises boot disk hook 1, spiral spring 2 and boot disk post 3, it suitably extends the length of the spring carrier arm part of described spiral spring 2, making described spiral spring 2 and boot disk link up with 1 length that contacts part is between the 1/4--1/2 girth of boot disk post 3, and it is bent into half crescent shape that is complementary with described boot disk post 3 shapes, thereby make this spiral spring hang over more securely on the hook of boot disk.

Claims

1, a kind of recoil starter spiral spring that pulls, comprise boot disk hook (1), spiral spring (2) and boot disk post (3), the two ends bending of spiral spring (2), boot disk hook (1) links to each other with the inner of spiral spring (2), it is characterized in that: the contact length of part of described spiral spring (2) and boot disk hook (1) is suitably extended, and it is bent into the arc that is complementary with described boot disk post (3) shape.

2, the recoil starter spiral spring that pulls according to claim 1, it is characterized in that: it is half crescent shape that described spiral spring (2) contacts partly with boot disk hook (1).

3, the recoil starter spiral spring that pulls according to claim 1 is characterized in that: described spiral spring (2) length partly that contacts with boot disk hook (1) is between the 1/4--1/2 girth of boot disk post (3).