CN102529766B

CN102529766B - The frame structure of backrest

Info

Publication number: CN102529766B
Application number: CN201010611847.5A
Authority: CN
Inventors: 神田健司; 本多正明; 狩野洋介
Original assignee: Tachi S Co Ltd
Current assignee: Tachi S Co Ltd
Priority date: 2010-12-29
Filing date: 2010-12-29
Publication date: 2017-07-28
Anticipated expiration: 2030-12-29
Also published as: CN102529766A

Abstract

A kind of frame structure of backrest, it is simple in construction, it can reliably protect passenger not to be hit when vehicle rear is collided.Characterized in that, setting upper end to prevent from moving up plate (4) towards front is inclined on the upper frame (2) of headrest supporting, prevent passenger from being moved up above the waist in rear impact.

Description

The frame structure of backrest

Technical field

The present invention relates to a kind of frame structure for constituting vehicle seat used backrest, it particularly relates to a kind of The frame structure of the backrest of passenger is protected in the rear impact of vehicle.

Background technology

Proposition has a variety of vehicle seat used, when vehicle is by the collision come from behind, protection passenger, particularly passenger's Neck.For example, impact when following the back of passenger because of rear impact with the seat movably rested the head on and movement rearward, headrest Move forwards, so as to protect head and the neck of passenger.

On the other hand, do not moved forwards as being rested the head in rear impact and absorbed and rushed by the component parts for constituting headrest The technology hit, skill disclosed in such as having Japanese Unexamined Patent Publication 2009-107571 publications, Japanese Unexamined Patent Publication 2010-18140 publications Art.

However, when rear impact occurs for vehicle, because passenger is pressed against on backrest, backrest is in hypsokinesis shape On pad, therefore, in rear impact, the upper part of the body of passenger is easily moved upward, and the head of passenger is relative to head Pillow is no longer at assigned position.

Patent document 1：Japanese Unexamined Patent Publication 2009-107571 publications

Patent document 2：Japanese Unexamined Patent Publication 2010-18140 publications

It is above-mentioned by protected when vehicle rear is collided passenger be not hit for the purpose of motion, be by making headrest movable, Or the impact absorbing structure of impact is deformed and absorbed by the component parts inside backrest.

Therefore, the internal structure of backrest is complicated, and there is the problem of parts count etc. is excessive.

The content of the invention

It is more simple in construction than existing product it is an object of the invention to provide a kind of frame structure of backrest, and And the function of protection passenger can be played in vehicle collision.

For realize above-mentioned purpose it is a feature of the present invention that setting and preventing on the upper frame of headrest supporting Plate is moved, this prevents the upper end for moving up plate from tilting forwards, prevents that passenger moves up during rear impact.

It is preferred that in the case where upper frame is sheet metal system, it is desirable to above-mentioned to prevent the part for moving up plate from passing through punch process And formed, in the case where upper frame is the structure that pipe fitting such as is made at the above-below direction narrow width, it is desirable to above-mentioned to prevent from moving up plate It is fixedly installed by welding etc..

The effect of invention：

According to the present invention, it can be moved upward when knocking into the back by moving up the upper part of the body for preventing plate from preventing passenger.Therefore, When vehicle rear is collided, the head of passenger will not depart from from headrest, reliably protect the cervical vertebra of passenger, moreover, it is simple in construction, Number of components will not be increased.

Brief description of the drawings

Fig. 1 is the stereogram on the top for representing the frame structure of the present invention.

Fig. 2 is Fig. 1 II-II line sectional views.

Fig. 3 is the partial section of the frame structure of the present invention.

Fig. 4 is the side view of the frame structure of the present invention.

The explanation of reference：

2...... upper frame

4...... prevent from moving up plate

Embodiment

Below, one embodiment of the present of invention is illustrated with reference to the accompanying drawings.

Fig. 1 represents that the top of the frame structure of backrest is rested the head on support side, and framework includes：The body side frame of left and right 1st, 1, the lower frame (not shown) that the portion integral of body side frame 1,1 is linked integratedly links on the top of body side frame 1,1 Upper frame 2.

The body side frame 1 of diagram, 1, upper frame 2 be sheet metal system, body side frame 1,1 towards backrest fore-and-aft direction, and The flange of reinforcement is provided integrally with respective end margin.

Above-mentioned upper frame 2 is as shown in Fig. 2 be fixedly installed the cylindrical supporting member 5,5 for supporting headrest L, in the branch Between bearing member 5,5, being provided integrally with inclined in the way of upper end is protruded forwards prevents from moving up plate 4.

This prevents from moving up plate 4 making passenger rearward not form angle in the plane with sliding on top in rear impact Degree, can control the upper half body of passenger.

It is above-mentioned to prevent that move up plate 4 shapes simultaneously in stamping upper frame 2.

The flange of 21,22 expression upper frames 2 in figure, 40 represent to be arranged on to move up to prevent the rope form of the reinforcement on plate 4 Reinforcing steel.

In addition, in figure 60,60...... be to support the spring of pad (not shown) that foaming body is made, its upper end card is hung In the outside portion 22,23 of above-mentioned upper frame 2, pad is configured by its top in the way of preventing the preceding surface for moving up plate 4 from engaging.

In addition, above-mentioned body side frame 1,1, the front-surface side of upper frame 2 be configured with by above-mentioned spring 60,60 support lining Pad, the pad is covered by skin material, forms backrest SB.

Upper frame 2 illustrated above is sheet metal system, but in the case where it is to make upper frame formed by pipe bending, It is preferred that split formed and prevent from moving up plate and being welded and fixed being arranged on upper frame.

In addition, the top of the body side frame 1,1 in left and right, being extended towards front has shoulder shock absorbing portion 3, the shoulder The leading section 30 of shock absorbing portion 3 is formed in standing shape forwards relative to above-mentioned upper frame 2.

The leading section 30 of the shoulder shock absorbing portion 3 is created as the flange that the front flange 11,11 of body side frame 1,1 extends, Bear the load from passenger's shoulder in the leading section 30.Also, the lateral surface in shoulder shock absorbing portion 3 is formed with reinforcement Stage portion 31.Therefore, by the shoulder shock absorbing portion 3, as shown in Fig. 2 upper frame 2 is when the passenger at rear takes a seat, place In deeper position.

As shown in figure 3, the outside portion 23,23 for installing above-mentioned supporting member 5,5 is formed as bending, end margin impacts with shoulder Absorption portion 3,3 is welded as a whole.

When knocking into the back, by preventing from moving up the upward load that plate bears to input from the passenger M upper part of the body, passenger will not be backward It is sliding in side and top.

Therefore, it is above-mentioned to prevent from moving up plate 4 due to making a part for existing upper board be formed as skewed, so knot Structure is simple and will not increase number of components.In addition, being fixedly installed on upper frame prevents in the structure for moving up plate, it can improve The rigidity of portion's framework, reliably supporting is rested the head on.

Claims

1. a kind of frame structure of backrest, it is characterised in that on the upper frame of headrest supporting, be fixedly installed Prevent from moving up plate for supporting the cylindrical supporting member rested the head on, and being integrally provided with upper frame, this prevents that moving up plate bears The upward load inputted during rear impact from the upper part of the body of passenger, between the supporting member and from the root of the supporting member Portion starts, and this prevents from moving up plate, and to be integrally formed upper end inclined skewed towards front, prevents passenger from being moved up in rear impact, Reinforcing steel is provided with plate preventing from moving up.