CN2694049Y

CN2694049Y - Curved face snakelike spring

Info

Publication number: CN2694049Y
Application number: CN 200420022115
Authority: CN
Inventors: 章碧鸿
Original assignee: Zhejiang Meili Spring Co ltd
Current assignee: Zhe Jiang MeiLi High Technology Co., Ltd.
Priority date: 2004-04-20
Filing date: 2004-04-20
Publication date: 2005-04-20
Anticipated expiration: 2014-04-20

Abstract

The utility model relates to a curved face snakelike spring with radians. The utility model makes improvements for the shortcomings that the hardness of the prior snakelike spring is poor and non-adjustable, and the spring is not provided with the inherent stress; the structure is the curved face snakelike spring, and the utility model is twisted continuously at grade by a steel wire according to the S shape. The utility model is characterized in that the flat surface of the spring is a curved surface, and the curved surface is composed that both ends of the spring bend towards the same side along the long direction of the spring, with 1-360 DEG curved radians. The utility model not only improves the hardness of the spring, but adjusts properly the hardness through the change of the spring radians; at the same time, the utility model makes the spring in working hours be provided with the inherent stress, and improves the comfort using of the products made up with the utility model to users; for the spring with the same hardness requirement, the utility model can also save the primary materials.

Description

A kind of curved surface serpentine spring

[technical field]

The utility model relates to a kind of spring, particularly relates to a kind of curved surface serpentine spring.

[background technique]

Serpentine spring is widely used in the manufacturing field of products such as sofa, cushion, automotive seat, backrest.At present, serpentine spring on the market all for by steel wire by continuous tortuous at grade the forming of s shape, its structure is a plane shape, though processing is simple, but only can play a supporting role during spring work to the power of its length direction, and passive prestressing force can not be provided for other directions of spring, the rigidity of spring is relatively poor and unadjustable simultaneously, therefore greatly reduces the comfort of products such as sofa, seat.

[model utility content]

The technical assignment of the technical problems to be solved in the utility model and proposition is to overcome the technological deficiency that existing product exists, and answers supporting effect good in advance when a kind of work is provided, the curved surface serpentine spring that spring rate is stronger and adjustable.

To achieve these goals, the utility model is taked following technological scheme: a kind of curved surface serpentine spring, by steel wire by continuous tortuous at grade the forming of s shape, it is characterized in that described spring plane is a curved surface, this curved surface is that both ends of the spring is along the spring length direction, bending forms to the same side, and the crooked radian of needs spring can be any radian in the 1-360 degree scope when using according to product.The utility model is on the basis of original serpentine spring, by the roller press forming, make it become curved surface spring with certain crooked radian, not only make spring increase prestressing force (except the spring length direction) on all directions, also improved simultaneously the rigidity of spring, and its rigidity can change suitable regulating by the radian of spring.We test, be all line footpath 1.5-4mm, the common serpentine spring that the above same material of length 200mm processes is compared with the utility model after the improvement, the same 70mm that elongates, common serpentine spring only needs the power of 28KG, and the utility model that is rolled into the arc of 180 degree needs the power of 20KG, and the ability (spring rate) of visible spring resistance to deformation when being subjected to external force has improved greatly.

By improvement to original serpentine spring, the utility model has not only improved the rigidity of spring, and its rigidity can suitably be regulated by the variation of spring radian, prestressing force is arranged when making spring work simultaneously, improved the comfort level that the user uses the product of being made by the utility model, for the spring that same stiffness requires, the utility model also can save material.

[description of drawings]

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

Fig. 2 is that A of the present utility model is to view.

[embodiment]

Embodiment 1: as shown in the figure, the utility model is simple in structure, and it improves at original serpentine spring, and along its length direction, crooked 180 degree form the processing mode by roller compacting to the same side with both ends of the spring.The utility model has not only improved the rigidity of spring, and its rigidity can suitably be regulated by the radian value that changes spring, prestressing force is arranged when making spring work simultaneously, improved the comfort level that the user uses the product of being made by the utility model, for the spring that same stiffness requires, the utility model also can save material.

Claims

1, a kind of curved surface serpentine spring by continuous tortuous at grade the forming of s shape, is characterized in that described spring plane is a curved surface by steel wire.

2, curved surface serpentine spring according to claim 1, it is characterized in that described curved surface be both ends of the spring along the spring length direction, bending forms to the same side, crooked radian is the 1-360 degree.