CN201415628Y

CN201415628Y - Structure of front seat in vehicle

Info

Publication number: CN201415628Y
Application number: CN2009201324159U
Authority: CN
Inventors: 王正中; 刘净; 郭玉伟; 张建涛; 车媛媛; 朱楚才
Original assignee: SAIC Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2009-06-03
Filing date: 2009-06-03
Publication date: 2010-03-03
Anticipated expiration: 2019-06-03

Abstract

The utility model relates to a structure of a front seat in a vehicle. The structure includes a seat body and a safety belt; an inner side sliding rail and an outer side sliding rail are arranged in parallel on two sides of the bottom surface of the seat body, and glidingly fixed on a bottom plate of the vehicle body; the safety belt includes a should strap and a waist strap with bolts, the commonend of the should strap and the waist strap is inserted into the inner side sliding rail fixed on the seat body through the bolts, and the other end of the waist strap is fixed on the outer side sliding rail; and the position of the outer side sliding rail is close to the middle part of the seat body. On the base of no influence on other functions of the seat, the utility model improves the bearing state of a mounting point on the inner side thereof (close to a middle passage), and reduces the risk of seat overturn in vehicle collision; and in addition, the structure is simple and easy, so that the design and material cost can be saved.

Description

The front-row seats of vehicle structure

Technical field

The utility model relates to a kind of automotive seat, refers in particular to a kind of front-row seats of vehicle structure.

Background technology

Traditional front-row seats of vehicle safety strap generally comprises shoulder belt and waistband; one end of shoulder belt is fixed on the gusset; one end of waistband is fixing on the seat; their common port inserts by dead bolt and is fixed in the buckle lock of the seat other end; thereby be implemented in the vehicle collision accident dual tension protection, as shown in Figure 1 to occupant's chest and waist.

Normally, seat is fixed by slide rail and body bottom panel, and all adopts symmetrical structure, and promptly slide rail is located at the seat bottom two ends respectively, and is fixed at four diagonal angles.With right front seat is example, angle from structure stress, as shown in Figures 1 and 2, if respectively the B point is got square along three power of safety strap tangential direction, then the stressed F2 of waistband one side is to the moment of seat right lateral side attachment point (B point) almost nil (active line of F2 is approximate by the B point), and the stressed big or small F3 of common port of the stressed big or small F1 of shoulder belt and shoulder belt and waistband all produces bigger moment loading to the B point, its resultant moment makes seat that the trend of relative waistband opposite side attachment point (A point) upset be arranged, its result often causes seat opposite side attachment point (near middle passage) in the vehicle collision process base plate to be started or tears, and occupant safety is constituted greatly threaten.In Fig. 2, O is the application force R point; B1 is the moment that F1 is ordered to B; B2:F2 is to the moment of B ' point; B3 is the moment that F3 is ordered to B.

For solving the considerable damage effect of seat that the safety strap unbalanced moment causes to base plate, following two kinds of ways can be arranged usually, first kind: the chair mounted position of centering passage one side is strengthened especially, to resist the unbalanced moment that safety strap causes in the collision process: the method is relatively directly reliable, but need additionally pay more design and material cost, and can not utilize the rigidity property of seat opposite side mounting structure; Second kind: on the seat crossbeam, increase attachment point, but can increase cost equally.

In view of the deficiency of above two kinds of methods, be necessary to design a kind of simple in structure and front-row seats of vehicle structure that cost is low to reduce and to eliminate front-row seats of vehicle shortcoming of upset easily in the vehicle collision process.

The utility model content

The purpose of this utility model provides a kind of simple in structure and front-row seats of vehicle structure that cost is low, to solve seat technical matters of upset easily in vehicle collision.

The technical scheme that its technical matters that solves the utility model adopts is: a kind of front-row seats of vehicle structure, it comprises a seat body and a safety strap, both sides, described seat body bottom surface are provided with parallel inboard slide rail and outside slide rail, described inboard slide rail and outside slide rail all slide and are fixed on the base plate of auto body, described safety strap comprises shoulder belt and the waistband that has dead bolt, the common port of described shoulder belt and waistband inserts by dead bolt and is fixed on the inboard slide rail of described seat body, the other end of described waistband is fixed on the slide rail of the described outside, and the position of described outside slide rail is near the middle part of described seat body.

The position of described outside slide rail is located at from the inboard to outside seat body width 0.5 times to 1 times.

The position of described outside slide rail is located at from the inboard to outside seat body width 0.6 times to 0.7 times.

Described inboard slide rail is provided with the buckle lock that blocks described dead bolt.

With respect to prior art, the utility model front-row seats of vehicle structure has been improved the strained condition of its inboard (near middle passage) attachment point on the basis that does not influence other functions of seat, reduced the risk that seat overturns in vehicle collision; Simultaneously, this is simple for structure, can save design and material cost.

Description of drawings

Fig. 1 is the scheme drawing of existing front-row seats of vehicle structure.

Fig. 2 is the force analysis scheme drawing of existing front-row seats of vehicle structure.

Fig. 3 is the block diagram of the utility model front-row seats of vehicle structure, and wherein, shoulder belt and waistband do not show that this shoulder belt and waistband are with shown in Fig. 1.

Fig. 4 is the back view of the utility model front-row seats of vehicle structure.

The specific embodiment

With the specific embodiment the utility model is further elaborated with reference to the accompanying drawings below.

See also Fig. 3 and Fig. 4, the utility model provides a kind of front-row seats of vehicle structure, it comprises a seat body 10 and a safety strap, inside and outside both sides, these seat body 10 bottom surfaces are provided with parallel inboard slide rail 12 and outside slide rail 14, this inboard slide rail 12 and outside slide rail 14 all slide and are fixed on the base plate of auto body, this safety strap comprises shoulder belt and the waistband (see figure 1) that has dead bolt, the common port of this shoulder belt and waistband inserts by dead bolt and is fixed on the inboard slide rail 12 of this seat body 10, the other end of this waistband is fixed on this outside slide rail 14, and the position 14 of this outside slide rail is near the middle part of this seat body 10.

The position of this outside slide rail 14 be located at from the inboard to outside seat body 10 width 6/10ths to 7/10ths.This inboard slide rail 12 is provided with the buckle lock that blocks this dead bolt.

The utility model has been offset the safety strap unbalanced moment from improving armchair structure, the utility model utilizes the unbalanced moment to the seat attachment point of stressed its generation of counteracting of safety strap self, promptly utilizing power F2 to produce a moment of resistance comes balance to offset by power F1 and the synthetic overturning couple to seat of power F3, in order to reach this purpose, in theory can be by seat one side attachment point (B point) is moved and realizes to seat opposite side attachment point (A point), as the point of the B ' among Fig. 2.

From the force analysis of Fig. 2 as can be known, B ' point is near more from the A point, then F2 is big more to the opposing overturning couple that B ' point produces, F1 and F3 will reduce along with reducing of the arm of force to the moment of B ' point simultaneously, thereby, when B ' point can be offset the unbalanced moment that safety strap produces seat along the longitudinal axis (car load coordinate x axle) direction when the BA direction moves to a certain position, and vertical force of inertia of the occupant who transmits by safety strap when making the inboard slide rail 12 of the seat left and right sides and outside slide rail 14 and attachment point resist vehicle collision simultaneously.But, also to consider the basic user demand of vehicle seat when cruising in the specific implementation, the center of gravity when promptly the occupant takes should drop between inboard slide rail 12 of seat and the outside slide rail 14, and the moving range that this has just limited B ' point is embodied as:

0.5＜AB’/AB＜1 (1)

Preferably get 0.6＜AB '/AB＜0.7 (2)

As shown in Figure 3, the utility model is that the outside slide rail of common seat is mobile to the inside together with attachment point integral body, thereby changes the position that safety strap overturning couple center B is ordered, to accomplish the end in view.According to formula (1) or formula (2), the position of B ' point is subjected to the restriction of objective condition, therefore suitable reinforcement is done in inboard chair mounted position on also needing base plate after having determined the position that outside slide rail and attachment point move, but the strengthened scheme of this moment is relatively easy, and cost also will greatly reduce.

The utility model has improved the strained condition of its inboard (near middle passage) attachment point on the basis that does not influence other functions of seat, reduced the risk that seat overturns in vehicle collision; Simultaneously, this scheme is simple, can save a large amount of designs and material cost.

The above only is preferred embodiment of the present utility model, and all equalizations of being done according to the utility model claim scope change and modify, and all should belong to the covering scope of the utility model claim.

Claims

1, a kind of front-row seats of vehicle structure, it comprises a seat body and a safety strap, both sides, described seat body bottom surface are provided with parallel inboard slide rail and outside slide rail, described inboard slide rail and outside slide rail all slide and are fixed on the base plate of auto body, described safety strap comprises shoulder belt and the waistband that has dead bolt, the common port of described shoulder belt and waistband inserts by dead bolt and is fixed on the inboard slide rail of described seat body, the other end of described waistband is fixed on the slide rail of the described outside, it is characterized in that: the position of described outside slide rail is near the middle part of described seat body.

2, front-row seats of vehicle structure according to claim 1 is characterized in that: the position of described outside slide rail is located at from the inboard to outside seat body width 0.5 times to 1 times.

3, front-row seats of vehicle structure according to claim 2 is characterized in that: the position of described outside slide rail is located at from the inboard to outside seat body width 0.6 times to 0.7 times.

4, front-row seats of vehicle structure according to claim 1 is characterized in that: described inboard slide rail is provided with the buckle lock that blocks described dead bolt.