CN202378733U

CN202378733U - Motor vehicle collision safety seat

Info

Publication number: CN202378733U
Application number: CN2011204788576U
Authority: CN
Inventors: 葛如海; 洪亮
Original assignee: Jiangsu University
Current assignee: Jiangsu University
Priority date: 2011-11-28
Filing date: 2011-11-28
Publication date: 2012-08-15
Anticipated expiration: 2021-11-28

Abstract

The utility model discloses a motor vehicle collision safety seat in order to protect the head of a passenger at the rear row; a headrest is connected with a seat backrest frame by two parallel guide rods; the lower ends of the guide rods are respectively hollowly sleeved in a guide sleeve; the guide sleeve is of an H-shaped structure with two vertical sleeve rods and one horizontal sleeve rod; two square slots are arranged on a top beam at the uppermost part of the seat backrest frame; the upper ends of the two vertical sleeve rods run through the two square slots and are located at the rear parts in the square slots, respectively; foam elastic material blocks pressed against the outer walls of the vertical sleeve rods are arranged at the front parts in the square slots; a transverse circular rod is sleeved at the lower ends of the two vertical sleeve rods at intervals; and the left and right ends of the transverse circular rod are fixedly connected with the seat backrest frame. The safety seat provided by the utility model can buffer the collision between the head of the passenger at the rear row and the headrest of the seat at the front row, so that the head injury of the passenger at the rear row is effectively relieved.

Description

Anti-collision safety chair for automobile

Technical field

The utility model belongs to the self-propelled vehicle safety device, is used to protect passenger's safety, particularly back row's head of passenger is played the safety seat of safety guard-safeguard effect.

Background technology

Seat and passenger's direct contact in the self-propelled vehicle can take place the most directly to collide, and are the important component parts of passenger safety constrained system.In the self-propelled vehicle head-on crash, under the effect of force of inertia, can bump forward by the passenger of safety strap constraint, back row passenger's head can collide on the front-row seats headrest.Usually, the headrest of common seat is fixedly connected on seat upper portion, can not longitudinal travel under the effect of impact force, and therefore, front-seat headrest can produce injury to back row's head of passenger.

Summary of the invention

The purpose of the utility model is to overcome the defective of existing automobile seat and a kind of anti-collision safety chair for automobile is provided, and when the self-propelled vehicle head-on crash, can protect back row's head of passenger.

The technical scheme that the utility model adopts is: topmost is a headrest; The headrest bottom is a seat back-rest framework; Headrest connects seat back-rest framework through two parallel guide rod; Lower end of the guide rod is placed in respectively in the guide pin bushing, and guide pin bushing is the H shape structure with two vertical loop bars and a horizontal loop bar, and the lower end of two parallel guide rod is placed in respectively in two vertical loop bars; Have two square grooves on the back timber of seat back-rest framework topmost, the upper end of two vertical loop bars is passed two square grooves respectively and is positioned at the rear portion of square groove, and the front portion in the square groove is provided with the foamed elastomeric material piece that is pressed against on the vertical loop bar outer wall; Equal gap, two vertical loop bar lower ends is with horizontal round bar, the equal captive joint back of seat of the right ends of horizontal round bar skeleton.

The beneficial effect of the utility model is: when after row occupant's head and front-row seats headrest collide; And when impact strength surpasses back row's occupant's head injury criteria (HIC); Can cushion the collision of back row's head of passenger and front-row seats headrest, effectively alleviate the back and arrange the injury that head of passenger receives.Can be for passenger in the car provide the actv. constraint, the injury that in accident, the passenger is received minimizes.After collision finished, the front-row seats headrest can set back.

Description of drawings

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further explain.

Fig. 1 be the utility model the mounting structure scheme drawing of seat back-rest framework, headrest, guide pin bushing and foamed elastomeric material piece;

Fig. 2 is headrest and the guide pin bushing inner connecting structure enlarged diagram among Fig. 1;

Among the figure: 1. guide pin bushing; 2. seat back-rest framework; 4. horizontal round bar; 5. rest the head on; 6. guide rod; 7. notch; 8. spring device; 31,32. foamed elastomeric material pieces; 91,92. guide pin bushing lower end circular holes.

The specific embodiment

Referring to Fig. 1, the topmost of the utility model is a headrest 5, and the bottom of headrest 5 is seat back-rest frameworks 2.Headrest 5 connect through two parallel guide rod 62, two parallel guide rod 6 of seat back-rest frameworks 5, two parallel guide rod 6 of the equal captive joint headrest in upper end the lower end respectively sky be enclosed within the guide pin bushing 1.The shape of guide pin bushing 1 becomes H shape, has two vertical loop bars and a horizontal loop bar, the lower end of two parallel guide rod 6 just respectively sky be enclosed within these two vertical loop bars.

Have two square grooves on the back timber of the topmost of seat back-rest framework 2, the upper end of two vertical loop bars of guide pin bushing 1 is passed this two square grooves respectively, and is positioned at the rear portion of square groove.Front portion in square groove is provided with foamed

elastomeric material piece

31,32, makes between two vertical loop bar outer walls of foamed

elastomeric material piece

31,32 and guide pin bushing 1 to press mutually.During installation, foamed

elastomeric material piece

31,32 is sticked with glue in square groove.

Two vertical loop bar lower ends of guide pin bushing 1 are connection horizontal round bar 4 simultaneously; Horizontal round bar 4 is positioned at the horizontal loop bar bottom of guide pin bushing 1; And horizontal round bar 4 gap simultaneously passes two guide pin bushing lower end

circular holes

91,91 on the vertical loop bar lower end, and the right ends of horizontal round bar 4 all is fixedly connected on the seat back-rest framework 2, like this; Form turning joint between horizontal round bar 4 and the guide pin bushing 1, guide pin bushing 1 can rotate around horizontal round bar 4.

Referring to Fig. 2, on a side of guide rod 6, vertically go up at interval and have several trough mouth 7, two notches 7 on the guide rod 6 are placed face-to-face.In the horizontal loop bar of guide pin bushing 1, spring device 8 is set.Spring device 8 is made up of the spring in the middle of being positioned at and the bullet at two ends, and the bullet at two ends connects both ends of the spring respectively, and the awl end of bullet is stuck in the corresponding notch 7, can regulate the height of headrest 5 through notch 7.

In the self-propelled vehicle head-on crash, receive occupant's displacement forward under the force of inertia effect of safety strap constraint in the car, when back row passenger's head collides with front-row seats headrest 5; And when impact strength surpasses back row's occupant's head 9 injury criterias (HIC); Elasticity of compression distortion in various degree takes place from top to bottom in two foamed

elastomeric material pieces

31,32 under two vertical loop bar squeese pressures effect of guide pin bushing 1, like this; Guide pin bushing 1 just around horizontal round bar 4 to front lower place inclination certain angle; Front-row seats headrest 5 is to front lower place inclination certain angle simultaneously, and the collision of buffering back row's head of passenger and front-row seats headrest 5 effectively alleviates the injury that back row's head of passenger receives.After collision finishes, passenger's displacement backward under the safety strap constraint in the car, guide pin bushing 1 loses the effect of back row passenger impact force; No longer push two foamed

elastomeric material pieces

31,32, at this moment two foamed elastomeric material pieces 31; 32 recover original shape; Extruding guide pin bushing 1 recovers vertical state around horizontal round bar 4, and front-seat passenger's neck of displacement is backward normally protected in front-row seats 5 recovery home positions of resting the head on simultaneously.

Claims

1. anti-collision safety chair for automobile; Topmost is a headrest (5); Headrest (5) bottom is seat back-rest framework (2), it is characterized in that: headrest (5) connects seat back-rest framework (2) through two parallel guide rod (6), and guide rod (6) lower end is placed in respectively in the guide pin bushing (1); Guide pin bushing (1) is the H shape structure with two vertical loop bars and a horizontal loop bar, and the lower end of two parallel guide rod (6) is placed in respectively in two vertical loop bars; Have two square grooves on the back timber of seat back-rest framework (2) topmost; The upper end of two vertical loop bars is passed two square grooves respectively and is positioned at the rear portion of square groove, and the front portion in the square groove is provided with the foamed elastomeric material piece (31,32) that is pressed against on the vertical loop bar outer wall; Equal gap, two vertical loop bar lower ends is with horizontal round bar (4), the equal captive joint back of seat of the right ends skeleton (2) of horizontal round bar (4).

2. anti-collision safety chair for automobile according to claim 1; It is characterized in that: guide rod (6) is interval with several notches (7) on the side vertically; Spring device (8) is set in the said horizontal loop bar; Spring device (8) is made up of the spring in the middle of being positioned at and the bullet at two ends, and the awl end of the bullet at two ends is stuck in respectively in the notch (7).