CN2121379U

CN2121379U - Double-induction automatic locking seat belt for automobile

Info

Publication number: CN2121379U
Application number: CN 91224503
Authority: CN
Inventors: 杨荣田; 苑久润
Original assignee: Factory Attached To Tianjing City No1 Middle School
Current assignee: Factory Attached To Tianjing City No1 Middle School
Priority date: 1991-09-10
Filing date: 1991-09-10
Publication date: 1992-11-11

Abstract

The utility model provides a double-induction automatic locking the seat belt for an automobile, which is provided with a double induction automatic locking mechanism. The mechanism is composed of a frame, a tape winding axle, a tape winding wheel, an inner gear sleeve, a webbing induction locking gear device, a cover plate, a vehicle body induction locking device, and a stop iron. During the acceleration, the emergency brake and the collision of the vehicle, the double-induction automatic locking mechanism is capable of locking the seat belt immediately. The utility model has the advantages of high sensitivity and reliability, simple technology, easy production and wide application to vehicles of all types.

Description

Double-induction automatic locking seat belt for automobile

The utility model belongs to the safety strap that the automobilist uses.

The safety strap of automobilist's use in the prior art can be divided into two kinds: a kind of for not having the dual sense lockable mechanism; has only vehicle body induction locking; and there is not the strap-sensitive Locking Device; in case vehicle body induction lock locking mechanism et out of order, safety strap is not because of losing the effect of protecting driver's life security by locking.Another kind of for having the dual sense lockable mechanism, but its volume is bigger, complex process, it is bigger to manufacture difficulty.

The purpose of this utility model is to provide a kind of volume little, simple and compact for structure, and the high automotive seat of sensitivity and reliability are with the automatic locking safety strap of dual sense (hereinafter to be referred as safety strap).This safety strap has dual this mechanism of automatic lock locking mechanism that comprises strap-sensitive locking and vehicle body induction locking because car acceleration; when emergency brake, body inclination and collision; the whisk of human body is to the induction of the acceleration/accel of ribbon generation; the automatic immediately dual locking of safety strap that the driver is worn, thus driver's life security protected reliably.

The utility model is reached by following measure, and this safety strap is to adorn a take-up spool between a framework two side; Two ends are respectively with the tape feed roller of a ratchet about being equipped with on the take-up spool; On the axle journal outside take-up spool stretches out framework one distolateral wall,, adorn the internal tooth casing that has a groove coupling on the cylindrical with free-running fit; The coaxial with it strap-sensitive spreadet spreadet wheel device that is equipped with in internal tooth casing; On the winding axle head, fix the cover plate of wearing boss in one; Vehicle body induction mechanical brake is housed on the frame side wall below the internal tooth casing and between the framework two side below the tape feed roller, adorn one can wallowing motion buting iron, thereby form a dual sense automatic lock locking mechanism with the safety strap auto lock.

The utility model also by following by way of finishing, be loaded in the internal tooth casing and coaxial with it strap-sensitive spreadet spreadet wheel device is external toothing of take-up spool end fixed installation in internal tooth casing, in the external toothing inboard wall groove, pack into one with free-running fit and to lock the wheel disk, circular hole and take-up spool on its centre are installed with free-running fit; Adorn a spring collar in another groove on the external toothing inwall between lock wheel disk and external toothing bottom surface, dial in locking the aperture of taking turns on the disk end of this spring collar; Adorning one on lock wheel disk is the interior ratchet of center of oscillation with the set pin, and claw one end of interior ratchet and lock are taken turns between another set pin on the disk and be connected an extension spring.

Be loaded on that device is that a unsteady bronze drum is installed on the vehicle body induction lock on the frame side wall of internal tooth casing below in the bottom recesses of a unsteady bronze drum support, on unsteady bronze drum support top a ratchet is arranged, left and right sides face on one of this ratchet end is respectively with a minor axis on same axis, this two minor axis inserts respectively in the aperture of the two sides, bronze drum support top of floating, ratchet is a center of oscillation with this two minor axis, and claw one end of ratchet contacts with unsteady bronze drum.

The utility model compared with prior art has following advantage:

1, have dual sense automatic lock locking mechanism, highly sensitive, safe and reliable.

2, volume is little, and is simple and compact for structure, is easy to make.

3, be applicable to the automobile of any model.

The utility model is shown in following each accompanying drawing:

Fig. 1 is that automotive seat are always schemed with the automatic locking safety strap of dual sense.

Fig. 2 is a strap-sensitive spreadet spreadet wheel set-up diagram.

Fig. 3 is vehicle body induction mechanical brake figure.

Fig. 4 is the spring collar erection plan.

The utility model will be further described embodiment in conjunction with the accompanying drawings:

The dual sense automatic lock locking mechanism that the utility model automotive seat have with the automatic locking safety strap of dual sense (seeing Fig. 1 hereinafter to be referred as safety strap) is by being loaded on a take-up spool 2 between framework 1 two side; Be loaded on the take-up spool 2 about two ends respectively with the tape feed roller 3 of a ratchet; Be loaded on take-up spool 2 with free-running fit and stretch out on the outer axle journal of the distolateral wall of one of framework 1 internal tooth casing 4 of outer round belt one fluted projection; Be loaded in the internal tooth casing 4 and coaxial with it strap-sensitive spreadet spreadet wheel device 5; Be fixed in the cover plate 6 of the back side band boss on the axle head of take-up spool 2; Be loaded on the vehicle body induction mechanical brake 7 on the internal tooth casing 4 below frame side walls and be loaded between 3 times square bearer two sides of tape feed roller can wallowing motion buting iron 8 form, the principle of work of safety strap is explained as follows:

Be loaded on after tape feed roller 3 upper sheds place on the framework 1 penetrate the ribbon termination, take-up spool 2 can rotate with tape feed roller 3, at an end of framework 1 inboard the furl power of a clockwork spring (wind spring) by clockwork spring being installed is wrapped in ribbon on the tape feed roller 3, thereby make ribbon can freely pull out and be involved in automatically, safety band integral body is fixed on the other compartment inwall of automotive seat with vertical direction, pulls out ribbon pendant that institute must length shoulder and the waist around the driver.

When the automobile balance human body that travels does not have violent when mobile, ribbon do not produced pull out acceleration/accel, external toothing 9 in the strap-sensitive spreadet spreadet wheel device (see figure 2) rotates with take-up spool 2 owing to mutual friction force with lock wheel disk 10 at this moment, interior ratchet 14 on the lock wheel rim sheet 10 does not snap in the tooth of internal tooth casing 4, does not play the locking effect this moment.

Work as car acceleration, emergency brake or when bumping, violent the moving of human body produces the bigger acceleration/accel of pulling out to ribbon, this acceleration/accel is up to state standards the 0.7g of regulation when above, the pulling force of ribbon drives take-up spool 2, tape feed roller 3 and cover plate 6 rotate with bigger angular acceleration together, overcome the friction force of 9 of lock wheel disk 10 and external toothings, and lock wheel disk 10 is not rotated with external toothing 9, this moment, cover plate 6 ejected interior ratchet 14 with the boss on its back side, snap in (see figure 1) in the tooth of internal tooth casing 4, internal tooth casing 4 is rotated with take-up spool 2, because the rotation of internal tooth casing 4, the termination that makes the trough of belt projection on its cylindrical stir buting iron 8 in its groove, angle of buting iron 8 swings is snapped in the tooth of the ratchet on tape feed roller 3 both sides, make tape feed roller 3, take-up spool 2 stops operating, and realizes because strap-sensitive makes the safety strap effect of locking automatically immediately.

When vehicle body to any direction tilt (national Specification) 12 °-27 ° the time, the unsteady bronze drum 18 that is loaded in the vehicle body induction mechanical brake (see figure 3) on the bronze drum support 17 that floats tilts with vehicle body, ratchet 19 jack-up that are in contact with it are blocked external toothing 9, make strap-sensitive spreadet spreadet wheel device 5 immediately with the safety strap locking, realize the effect of vehicle body induction locking.

Claims

1, a kind of automotive seat are with the automatic locking safety strap of dual sense, it is characterized in that having a dual sense automatic lock locking mechanism with the safety strap auto lock, this mechanism is by being loaded on a take-up spool 2 between framework 1 two side, be loaded on the take-up spool 2 about two ends respectively with the tape feed roller 3 of a ratchet, be loaded on take-up spool 2 with free-running fit and stretch out the internal tooth casing 4 that cylindrical on the outer axle journal of the distolateral wall of one of framework 1 has a groove coupling, be loaded in the internal tooth casing 4 and coaxial with it strap-sensitive spreadet spreadet wheel device 5, be fixed in the cover plate 6 of the back side band boss of take-up spool 2 axle heads, be loaded on the vehicle body induction mechanical brake 7 on the internal tooth casing 4 below frame side walls and be loaded between 3 times square bearer two sides of tape feed roller can wallowing motion buting iron 8 form.

2, automotive seat according to claim 1 are with the automatic locking safety strap of dual sense, it is characterized in that said be loaded in the internal tooth casing 4 and coaxial with it strap-sensitive spreadet spreadet wheel device 5 is external toothings 9 of fixed installation on the end of take-up spool 2 in internal tooth casing 4, in external toothing 9 inboard wall grooves, with free-running fit pack into one lock the wheel disk 10, circular hole on its centre and take-up spool 2 are installed with free-running fit, adorn a spring collar 13 in another groove on the external toothing inwall between lock wheel disk 10 and external toothing 9 bottom surfaces, dial in locking the aperture of taking turns on the disk 10 end of spring collar 13, adorning one on lock wheel disk 10 is the interior ratchet 14 of center of oscillation with set pin 12, and claw one end of interior ratchet 14 is connected an extension spring 15 with 16 of another set pins that lock is taken turns on the disk 10.

3, automotive seat according to claim 1 is characterized in that with the automatic locking safety strap of dual sense the said vehicle body induction mechanical brake 7 that is loaded on the internal tooth casing 4 below frame side walls is that a unsteady bronze drum 18 is housed in the bottom recesses of a unsteady bronze drum support 17, a ratchet 19 is arranged at the top of unsteady bronze drum support 17, each side have a minor axis on same axis on one of this ratchet 19 end, this two minor axis inserts respectively in the aperture on the two sides, bronze drum support 17 top of floating, ratchet 19 is a center of oscillation with this two minor axis, and the claw end of ratchet 19 contacts with unsteady bronze drum 18.