CN209534817U - A kind of motor vehicle seat back suspension - Google Patents

Abstract

The utility model discloses a kind of motor vehicle seat back suspension, including center plastic tube, the plastic coating steel wire of center plastic tube two sides is set and along the spaced apart several transverse steel wires of the center plastic tube length direction, the middle part of each transverse steel wire passes through center plastic tube, the both ends of each transverse steel wire are individually wound on the plastic coating steel wire, each plastic coating steel wire is arranged at intervals with several plastic sleeve hooks along its length, and the plastic sleeve hook is not integrally formed with transverse steel wire.The plastic sleeve hook being independently arranged can be rotated freely movable about plastic coating steel wire, therefore in various use occasions, plastic sleeve is linked up with no bending force and is existed, it is subjected only to pulling force, effectively improve the counter-bending fatigue endurance performance of plastic sleeve hook, under same load, this can reduce weight about 10% compared to integrated hook with independent hook, while save material, the costs about 15% such as mold.

Description

A kind of motor vehicle seat back suspension

Technical field

The utility model relates to field of automobile seats, in particular to a kind of motor vehicle seat back suspension.

Background technique

Motor vehicle seat back suspension currently used in the market generally using integrated steel wire hook, is bearing fatigue In the case where load, it is easy to which fatigue fracture causes client's complaint and Aftermarket Claims.Such as Chinese patent Authorization Notice No. A kind of seat comfort backrest suspension, is participated in shown in Fig. 1, hook 1 and bracket steel wire 2 are integrated disclosed in CN207594769U One, it just will appear the above problem.

Utility model content

The purpose of this utility model is that providing a kind of motor vehicle seat back for the above-mentioned insufficient and defect of the prior art Suspension, the utility model avoids the bending force of suspension in use, tired because that can be effectively prevented from the bending Labor fracture, while the suspension product weight under same equivalent life can be reduced about 10%, save material, the costs such as mold about 15%, meet product lightweight demand.

The technical issues of the utility model is solved can be realized using following technical scheme:

Including center plastic tube, the paintings of center plastic tube two sides is arranged in a kind of motor vehicle seat back suspension It plastic steel wire and is worn in the middle part of the spaced apart several transverse steel wires of the center plastic tube length direction, each transverse steel wire Cross center plastic tube, which is characterized in that the both ends of each transverse steel wire are individually wound on the plastic coating steel wire, each Clad Steel Silk is arranged at intervals with several plastic sleeve hooks along its length, and the plastic sleeve hook is not integrally formed with transverse steel wire.

In a preferred embodiment of the utility model, the plastic sleeve hook includes independent steel wire, the independent steel wire One end is directly wound on plastic coating steel wire, and the other end is formed by bending hook, and the end is coated with plastic bushing.

In a preferred embodiment of the utility model, isosceles trapezoidal structure is curved in the middle part of the transverse steel wire, is had There are interior angle R, the arch height H of bending, angle A and spacing W.

Due to using technical solution as above, the plastic sleeve hook being independently arranged can be rotated freely movable about plastic coating steel wire, because , in various use occasions, plastic sleeve is linked up with no bending force and is existed, and pulling force is subjected only to for this, effectively improves the bending resistance of plastic sleeve hook Bent fatigue endurance performance, under same load, this can reduce weight about 10% compared to integrated hook with independent hook, together When save material, the costs about 15% such as mold.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the hook of the prior art and the local connection schematic diagram of bracket steel wire.

Fig. 2 is a kind of structural schematic diagram of embodiment of the utility model.

Fig. 3 is a kind of structural schematic diagram of the transverse steel wire of embodiment of the utility model.

Fig. 4 a is the first state diagram that transverse steel wire is connect with plastic coating steel wire.

Fig. 4 b is second of state diagram that transverse steel wire is connect with plastic coating steel wire.

Fig. 4 c is the third state diagram that transverse steel wire is connect with plastic coating steel wire.

Fig. 5 a is that plastic sleeve links up with the first state diagram connecting with plastic coating steel wire.

Fig. 5 b is that plastic sleeve links up with second of state diagram connecting with plastic coating steel wire.

Fig. 5 c is that plastic sleeve links up with the third state diagram connecting with plastic coating steel wire.

Specific embodiment

In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, under The utility model is further described in face.

A kind of motor vehicle seat back suspension shown in Figure 2, including center plastic tube 100, a pair of of plastic coating steel wire 200 and several transverse steel wires 300.Centrally disposed 100 two sides of plastic tube of plastic coating steel wire 200, transverse steel wire 300 is along center plastics The middle part of 100 length direction arranged for interval of pipe, each transverse steel wire 300 passes through center plastic tube 100.

It is shown in Figure 3 in order to improve the comfort of driver, it is curved in the middle part of the transverse steel wire 300 in the present embodiment Waist trapezium structure 310, with interior angle R, the arch height H of bending, angle A and spacing W, by changing interior angle R and folding Curved arch height H and angle A, thus it is possible to vary the power of comfort, while adjust spacing W can also adjust backrest suspension it is rigid Property.

The both ends of each transverse steel wire 300 are individually wound on plastic coating steel wire 200, and specific canoe can have more Kind, a to 4c referring to fig. 4, including transverse steel wire 300 end half-turn be wrapped on plastic coating steel wire 200, transverse steel wire 300 End it is whole circle be wrapped on plastic coating steel wire 200, the end double-round of transverse steel wire 300 is wrapped on plastic coating steel wire 200.

Each plastic coating steel wire 200 is arranged at intervals with several plastic sleeves hook 400 along its length, plastic sleeve hook 400 not with cross It is integrally formed to steel wire 300, plastic sleeve hook 400 can be rotated freely movable about plastic coating steel wire 200, therefore in various use occasions, set Modeling hook 400 exists without bending force, is subjected only to pulling force, effectively improves the counter-bending fatigue durability of plastic sleeve hook 400 Can, under same load, this can reduce weight about 10% compared to integrated hook with independent hook, while save former material The costs such as material, mold about 15%.

Plastic sleeve hook 400 in the present embodiment includes independent steel wire 410, and independent 410 one end of steel wire is directly wound in plastic-coated On steel wire 200, the other end is formed by bending hook, and the end is coated with plastic bushing 411.The canoe of plastic sleeve hook 400 can There are many, referring to Fig. 5 a to 5c, it is wrapped on plastic coating steel wire 200 including the end half-turn that plastic sleeve links up with 400, plastic sleeve is hung The whole circle in the end of hook 400 is wrapped on plastic coating steel wire 200, the end double-round of plastic sleeve hook 400 is wrapped on plastic coating steel wire 200. Hook is mounted on seat back-rest framework, and plastic bushing 411 can eliminate the friction abnormal sound that metal is contacted with metal.

The main structure that center plastic tube 100, a pair of of plastic coating steel wire 200 and several transverse steel wires 300 can be formed can To be made into general form, only need to change position and winding angle of the plastic sleeve hook 400 on plastic coating steel wire 200 when in use Degree, and change corresponding hook length, so that it may it is suitble to the requirement (different size and width) of most of motor vehicle seat backs, this Sample can save the production mould of actual items, shorten process line, and can be by process standardization.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims (3)

1. a kind of motor vehicle seat back suspension, including center plastic tube, the plastic-coateds of center plastic tube two sides is set Steel wire and along the spaced apart several transverse steel wires of the center plastic tube length direction, the middle part of each transverse steel wire passes through Center plastic tube, which is characterized in that the both ends of each transverse steel wire are individually wound on the plastic coating steel wire, each plastic coating steel wire It is arranged at intervals with several plastic sleeve hooks along its length, the plastic sleeve hook is not integrally formed with transverse steel wire.

2. a kind of motor vehicle seat back suspension as described in claim 1, which is characterized in that the plastic sleeve hook includes single Only steel wire, described independent steel wire one end are directly wound on plastic coating steel wire, and the other end is formed by bending hook, and the end is coated with modeling Expect casing.

3. a kind of motor vehicle seat back suspension as described in claim 1, which is characterized in that curved in the middle part of the transverse steel wire At isosceles trapezoidal structure, with interior angle R, the arch height H of bending, angle A and spacing W.