SU1096140A1 - Emergency-locking pull in device of vehicle safety belt - Google Patents

Abstract

1. EMERGENCY-LOCKING TENSIONING DEVICE BELT SAFETY VEHICLE, comprising a housing that houses a spiral-spring-loaded shaft for securing and winding a belt belt, a locking mechanism with a toothed disk and an inertial sensor that has a support and a frame with a backing device. specified disk and interacting with the dog ma t. A nickname containing a head, an inertial body and an associated suspension in the form of an earring, which is attached to a bracket, is characterized in that in order to increase operational reliability and expand function 1; ionic possibilities by installing the device in a vehicle | At various angles of inclination of the shaft to the horizontal and ensure that the tape emerges with an inclination to the vertical in the vertical plane, the ends of the bracket are fixed in the sensor support, the taller head is made in the upper part of the earring and has a glossy middle part of the pawl, a flat end located obliquely relative to the plane of the hole of the earring, with an imaginary line of intersection of said end and flat (L bone parallel to the longitudinal axis of the pawl, the middle flat part of which is made inclined in the transverse direction to ensure its contact with the flat head end 2. The device according to claim 1, which is distinguished by the fact that the head, 05 earring and the inertial body of the t-shirt are made in one piece. 3. The device according to paragraphs. 1 to 2, characterized in that the inertial body of the tandem is made in the form of a disk, the sides of which are parallel to the plane of the hole of the shackle.

Description

The invention relates to a passive safety device in vehicles, and more specifically to an emergency locking retractor device of seat belts installed, for example, in automobiles and intended to block the driver's seat or the passenger in a traffic accident. an obstacle, its overturning, forced sudden braking or bends, etc.

The emergency locking retractor seat belt device contains a belt belt in a wound state in the device case. After fastening the belt, the user pulls it out of the device, and when the belt is unfastened, it is automatically retracted, winding on the device shaft as it rotates under the action of a helical spring. This allows the user to have relative freedom of movement when seated. Thus, the length of the belt is automatically adjusted in the best way to fit the body of the user.

When an emergency situation occurs at its initial stage, when braking, tilting or colliding the car body with an obstacle occurs, the belt tape in the described device is instantly blocked and its winding from the device shaft becomes impossible, which keeps the user on the seat.

The existing emergency locking retractor devices are required according to which the blocking of the belt tape must occur mainly from the impact on the accelerator device or from tilting in any direction and also from the accelerated drawing of the tape from the device.

The trigger threshold of the AZVU from the first factor should not exceed the value of the acceleration equal to 0.45 g, however it should not trigger when it is inclined to 12 ° inclusive, but it should trigger when the angle of inclination is 27.

The operation of the device from the accelerated stretching of the tape from it should occur at a tape acceleration rate of up to 0.8 g inclusive, but it should work with a large acceleration and be sure when the acceleration value reaches 1.5 g. In all cases, when the values of accelerations equal to the established threshold are reached, the output of the belt tape from the device should not exceed 50 mm.

An emergency locking retractor seatbelt device is known, comprising a housing with a spring-loaded shaft for securing and winding a belt, a locking mechanism with a toothed disk and an inertial sensor with a swivel dog for interacting with the teeth of the locking mechanism and a mother interacting with it, mounted in the inertia sensor support. The support is pivotally fixed on a bracket fixedly mounted on the device body in such a way that the support can turn together with a tang and dog around an axis mounted on the wall of the device body of the device vertical and perpendicular to the wall of the device body. On the specified wall

the bracket is made of a series of holes for fixing the position of the sensor support, i.e. when the device is in an inclined position, the inertia sensor is mounted on the bracket in a certain position by selecting a suitable hole for fixing it 113.

However, when this device is installed obliquely, the free end of the inertial sensor pawl can be positioned at an angle to the peripheral surface of the toothed disk, which adversely affects the quality of the interaction of the pawl with the toothed disk and impairs the reliability of the device as a whole. em device design.

0 In addition, the master of the above device is suspended by its head on a stepped hole in the sensor support, which degrades its efficiency of interaction with the dog and

5 therefore, the mass of the tandem must be made of a material with a high specific gravity in order to achieve the required sensitivity of the device to the effects of acceleration or impacted forces on it.

The closest technical solution to the invention is an emergency locking retractor device of a belt of a transport means, comprising a housing with a shaft arranged therein and under the action of a helical spring for fastening and winding a belt, a locking mechanism with a toothed disk and an inertial sensor. The inertia sensor has a turning dog for interacting with the teeth of the disk of the locking mechanism and interacting with it through the L-shaped lever. The master contains an inertial body and an associated suspension in the form of an earring, with which it is hung on the hollow of the M-shaped bracket fixed through the console support on the device body.

When the tumbling out of balance, under the influence of external inertial forces on it (acceleration, braking or tilting), it deviates from the vertical position and by its inertial body rotates the L-shaped lever. The latter, in turn, acts on the pawl, which turns and engages with the end with the teeth of the disc of the C2T locking mechanism.

This device is simpler in construction and has a higher operational reliability than the described devices. However, it can be installed in a vehicle only with a horizontal shaft and, therefore, with a vertical belt belt exit. In practice, however, it is required in some cases to install an emergency locking retractor device in a vehicle with a certain inclination of the shaft axis to the horizontal plane. to provide an exit of a belt lamb inclined to a vertical in a vertical plane.

The purpose of the invention is to increase the operational reliability and expand the functionality of the device by installing it in a vehicle at different angles of inclination of the roller to the horizontal plane to provide an outlet with a slope to the vertical in the vertical plane.

This goal is achieved due to the fact that the ends of the bracket are fixed to the sensor, the taller head is made in the upper part of the earring and has a flat end that interacts with the flattened middle part of the pawl, which is located obliquely relative to the openness of the earring. At the same time, an imaginary line of intersection of the indicated end and plane is parallel

the longitudinal axis of the pawl, the middle flat part of which is made inclined in the transverse direction to ensure its contact with the flat end of the bow.

In addition, the head, earring and inertial body of the tandem are made in one piece.

The inertial body of the tambourine is made in the form of a disk, the sides

which parallel to the plane of the hole earrings.

Thanks to the above implementation of the tambourine, the shackle and the inertia sensor dog, it is possible

make emergency lock-up and wi-fi device guiding as in the usual design, i.e. with a horizontal shaft, and in the inclined version, i.e. when

The device is mounted in a vehicle with the shaft inclined to a horizontal plane.

In the usual version, the tambourine is hung on the carrier part of the bracket so that

that the angles of inclination of the end face of its head and the inclination of the middle flat part of the pawl have the same direction and the same value.

With oblique performance

hinged on the carrier part of the bracket rotated by 180 ° around its longitudinal axis compared with the normal version. In this case, the resulting angle of inclination of the device (and, accordingly, the angle of inclination of the roller) to the horizontal plane is equal to the sum of both of these angles of inclination of the end of the talted head and doggie.

In addition, made

equal values of the angles of inclination of the interacting surfaces of the dog and the tandem, you can get different angles of inclination of the installation of the devices in the car, and since the head,

The earring and inertial body of the tambourine are made in one piece, for example of plastic, the manufacture of the tandem significantly simplifies. It is purposeful that the inertial body is fulfilled in the form; a disk, the sides of which are parallel to the plane of the bend of the shackle, which makes it possible to reduce the dimensions of the space required for placing the inertial sensor in the device.

Fig. 1 schematically depicts an emergency locking retractor, view from the side of the locking mechanism, with a horizontal shaft; figure 2 - section aa in figure 1; on fig.Z - bearing on figure 4 - section bb on fig.Z} on fig.Z - bracket; figure 6 - section bb In fig.Z; Fig.7 - tantalum; on fig.Z - section GGD on figure 7, figure 9 - dog; figure 10 is a cross section dD in figure 9; in fig. 1.1 - the same as in figure 2, in an inclined position.

The emergency locking retracting device comprises a housing 1, (FIGS. 1 and 2), in which a spiral spring (not shown) shaft 2 is mounted under the action of a spiral spring to secure and wind the belt 3, the locking mechanism 4 with a toothed disk 5 and an interchangeable a sensor 6 mounted on the housing 1, comprising a support 7 (FIGS. 3 and 4) with holes 8 aligned and parallel to the axis of the roller 2, in which axis 9 is mounted.

An axis 10 (figure 9) is pivotally mounted on axis 9 (FIG. 1), the middle flat part 11 of which is inclined at an angle ci in the transverse direction relative to its longitudinal plane 12. Between the free end 13 of the dog 10 interacting with the teeth 14 of the disk 3 (FIGS. 1 and 2), and its middle part 11 is bent 15 in order to increase the elasticity of the dog in the longitudinal direction.

The support 7 has holes 16 (Fig. 3 and 4) for securing the bracket 17 (Fig. Zb) in them, the ends 18 of which are pressed into these holes (Fig. 1). Bracket 17 has a carrier part 19 that is curved with a constant radius R. The carrier part 19 of the bracket 17 is bent with respect to its two parallel ends 18 at a right angle.

The platter 20 (fig. 7 and 8) is made in one piece and consists of the inertial body 21, the earring 22 adjacent to it and the latter

heads 23. Hole 24 of the shackle 22 is designed so that its forming surface 23 is rounded along a radius corresponding to the radius R of the bend of the bearing part 19 of the bracket 17 (FIG. 3).

The head 23 (Fig. 7 and 8) of the tiger 20, the end 26, the plane of which

inclined relative to the longitudinal axis of the tambour at an angle J; the imaginary line of intersection of the plane of the end face 26 and the opening of the opening 24 of the stud 22 is parallel to the longitudinal axis of the plane of the dog 10 and approximately coincides with it (Fig. 2).

The inertia sensor 6 is fixed to the housing 1 by a screw 27 (FIG. 1), for which a hole 28 is made in the support .7 (FIGS. 3 and 4). The locking mechanism 4 can be performed by any of the known schemes.

When the device is installed in a car in a horizontal position (Figures 1 and 2), the tang 20 is hung with a hole 24 of the earring 22 on the curved support part 19 of the bracket 17 so that the inclination of the plane of the end face 26 of the head 23 and the inclination of the middle flat part 11 of the dog 10 the direction relative to the horizontal plane and the angles oi and (b have equal value.

When the device is installed in an automobile in an inclined position (FIG. 11), the tandem 20 is hung on the bracket 17 so that the corresponding inclinations of the angles ot and p have the opposite direction, i.e. The tandem 20 is hinged on the bracket 17 rotated around its vertical axis by 180. With this mounting device, the angle of inclination of the roller 2 relative to the horizontal plane is equal to the sum of the angles ot and D.

This is possible if the doggie 10 and the tambourine 20 are made when the angles cL and ft differ in size, for example оС / 5. In this case, the device has two inclined mounting options in the car: at an angle ci + fb and at an angle -fb

Mate 20 (Fig. 1 and 2) can be applied in all directions under the action of inertial forces or tilt. At the same time, deviating by angle y, it interacts with the end face 26 of its head 23 with the middle flat part 11 of the dog 10. In a normal position, there is a gap c between the end 13 of the dog 10 and the tooth 14 of the disk (figure 1). The hole 24 (FIGS. 2 and 11) of the housing 1 serves to additionally fix the support 7 when it is fixed to the housing 1, for which the end of the axis 9 passes through this opening. The device works as follows. When the car is in uniform motion or standing still, the inertial sensor 6 of the device is at rest, i.e. The holder is in a vertical position and a gap OL is maintained between the tip of the end 13 of the dog 10 and the teeth 14 of the disk 5. At the same time, the locking mechanism 4 does not work and the tape 3 can be freely pulled out of the device. When an inertia forces the car in any direction (acceleration braking and tilting) and, consequently, the device, the pilot 20 of the sensor 6 deviates from its vertical position and the head 23 with its end 26 acts on the flat part 11 of the dog Sh. around the axis 9 and with its end 13 it engages with the tooth 14 of the disk 5, which stops its rotation in the direction of rotation of the shaft, corresponding to pulling the tape out of the device. As a result of stopping the disk 5, the locking mechanism 4 is activated and stops the shaft 2, blocking the possibility of the tape coming out of the device. If there are some inaccuracies between the parts of the blocking mechanism, the dog 10 may be somewhat deformed due to its i-shaped bend 15, compensate for these inaccuracies, and after each working mechanism, due to its elasticity, it accepts its normal co-operation; Due to the fact that the carrier part 19 of the bracket 17 has a bend with a constant radius, the taller, 20 on the upper part of the earring 22 has a head 23 with a flat end 26, the surface of which is inclined at an angle relative to the plane of the hole 24 of the specified earring so that an imaginary line the intersection of these planes is parallel and almost coincides with the longitudinal axis of the pawl 10, and the middle flat part 11 of the pawl is tilted in the transverse direction to ensure contact of this part with the end face 26 of the head 23 of the 20. Possibility of the simplest production of emergency locking retractors, devices of the same design in different versions of the required angle of the belt from the device relative to the vertical in the vertical plane or, equivalently, the required angle of inclination of the roller axis of the device to the horizontal plane, and also the possibility of changing the inclination of the device by mounting dogs with different angles of inclination in the transverse direction of their mid-plane part in an inertial sensor. Due to the fact that the tambour 20 is hung with a hole 24 of the earring 22 on a bracket with a circular cross section, and in the upper part of the earring there is a head 23, which interacts with its end face 26 with the middle flat part 11 of the dog 10, the sensitivity and reliability of the inertial sensor and, accordingly, the entire device is greatly enhanced. In addition, since the tandem consisting of an inertial body, an earring and a head is made as one unit, its manufacture is simplified, and due to the fact that the sensitivity to actuation from the inertial force forces of the inertia sensor is increased, it becomes possible from plastic. The design of the proposed emergency locking device. The diverting device can also have a design in which the mentioned inclination angles are about and equal to zero, i.e. made without tilting, or such a design, in which the end 26 of the tandem 20 is made without tilting, and the 10 ° dog has an inclined middle part 11. This allows to expand the range of application of the described device. The emergency locking retractor device according to the invention has a high reliability in long-term operation, which ensures the passive safety of the driver or passenger of the vehicle when using the belt without saving,

This device is part of it.

The proposed device has a very simple, compact and high-tech design. Its mass production does not present any difficulties and is feasible with conventional mechanized and automatic equipment.

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Claims (3)

1. EMERGENCY-LOCKING TIGHTENING DEVICE OF A VEHICLE SAFETY BELT, comprising a housing in which a shaft spring-loaded with a spiral spring is placed for fastening and winding the belt tape, a locking mechanism with a toothed disk and an inertial sensor having a support for contacting the rotary tooth disk and interacting with a dog may ·. a nickname containing a head, an inertial body and an associated suspension in the form of an earring hung on a bracket, characterized in that for the purpose of increasing operational reliability and expanding functionality by installing the device in a vehicle (At various angles of inclination of the shaft to a horizontal plane and ensuring the exit of the tape with an inclination to the vertical in the vertical plane, the ends of the brackets are fixed in the sensor support, the pendulum head is made in the upper part of the earring and has interacting with the made flat middle part pawl plosX cue end disposed obliquely with respect to earrings opening plane, wherein the imaginary line of intersection of said end face and a plane parallel to the longitudinal axis of the pawl, the mean plane of which is inclined transversely to ensure its contact with the flat face of the pendulum head. 2. The device according to claim 1, characterized in that the head, earring and inertial body of the pendulum are made in one piece. 3. The device according to paragraphs. 1 m 2, characterized in that the inertial body of the pendulum is made in the form of a disk, the sides of which are parallel to the plane of the opening of the earring. SS SU .... 1096140