CN214929578U

CN214929578U - Safety belt retraction anti-clamping stagnation structure

Info

Publication number: CN214929578U
Application number: CN202121290253.9U
Authority: CN
Inventors: 李坤霖; 任四刚; 张明
Original assignee: Chongqing Yanfeng Johnson Controls Automotive Components Co Ltd
Current assignee: Chongqing Adient Automotive Components Co Ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2021-11-30
Anticipated expiration: 2031-06-09

Abstract

The utility model discloses a safety belt is retracted and is prevented clamping stagnation structure, including the backrest skeleton, be provided with direction restraint mechanism on this backrest skeleton, this direction restraint mechanism has the slip chamber that supplies the safety belt to slide, the slip chamber is continuous cavity or is located two at least separation cavitys on the same curve, the slip chamber has injectd the gliding safety belt of confession safety belt route of sliding, is provided with the elasticity disturbance piece on this safety belt route of sliding. The utility model has the advantages that: the elastic disturbance piece generates elastic vibration when being touched by the sliding safety belt, so that the safety belt is stirred, and the resistance of the safety belt during retraction is reduced.

Description

Safety belt retraction anti-clamping stagnation structure

Technical Field

The utility model belongs to the technical field of car seat skeleton texture, concretely relates to safety belt returns anti-sticking stagnation structure that contracts.

Background

The functions of the car seat are more and more abundant, and thus the structural design thereof tends to be complicated. In order to improve the comfort of the seat, a plurality of joints between each part of the seat frame are designed to be adjustable so as to adjust the posture of the seat, thereby sufficiently and appropriately supporting each part of the body, reducing the joint tension and enabling the body to be in a highly relaxed state. Under the design concept of "zero gravity", the adjustment range of each part of the seat is large, so that the seat belt retractor of the "zero gravity" seat is required to be installed on the seat back or the bottom of the seat frame and cannot be installed on the vehicle body like the traditional seat. In use, the harness extends from the rear of the seat back, passes up the back and is then stretched down to snap onto a latch located on the seat frame or seat base. The seat belt must be guided by the belt guide structure as it passes around the seat back so that the seat belt slides along the back side of the back. Because of the multiple bends in the extending path of the safety belt, the resistance of the safety belt during retraction may increase, resulting in an unsmooth restoration of the safety belt.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a safety belt retraction anti-jamming structure. The technical scheme is as follows:

the utility model provides a safety belt contracts anti-sticking structure, includes the backrest skeleton, is provided with direction restraint mechanism on this backrest skeleton, and its key lies in, this direction restraint mechanism has the slip chamber that supplies the safety belt to slide, the slip chamber is continuous cavity or is located two at least separation cavitys on the same curve, the slip chamber has injectd the safety belt sliding path that supplies the safety belt to slide, is provided with the elasticity on this safety belt sliding path and disturbs the piece.

As preferred technical scheme, above-mentioned elasticity disturbing piece is the buckled plate, this buckled plate with direction restraint mechanism connects, and this buckled plate is along the extending direction setting in safety belt sliding path, line on this buckled plate with the extending direction in safety belt sliding path is perpendicular.

As a preferred technical scheme, the guide restraining mechanism comprises a guide strip arranged at the rear side of the backrest framework, one side of the guide strip faces the backrest framework, a limiting plate is arranged at the other side of the guide strip, a flat cavity is defined between the limiting plate and the guide strip, and the cavity forms the sliding cavity;

the partial sections of the guide strips are alternatively deformed towards the two sides of the guide strips to form the corrugated plates;

the guide strip has at least one bend.

As a preferred technical scheme, at least two limiting plate groups are arranged on the guide strip, and each limiting plate group comprises two limiting plates which are oppositely arranged and respectively positioned at two sides of the guide strip;

the limiting plate is strip-shaped, the limiting plate extends along the direction of the guide strip, the section of the limiting plate is L-shaped, one long edge of the limiting plate is connected with the edge of the rear side face of the guide strip, and the other long edge of the limiting plate is positioned at the rear side of the guide strip and is parallel to the guide strip;

the corrugated plates and the bending parts are distributed among the limiting plate groups.

According to a preferred technical scheme, the backrest framework comprises two backrest side plates which are oppositely arranged at the left and right sides, the two backrest side plates are vertically arranged, an upper backrest transverse pipe is connected between the upper ends of the two backrest side plates, and a lower backrest transverse plate is connected between the lower ends of the two backrest side plates;

the backrest side plate comprises a rear convex section positioned at the upper part and a front convex section positioned at the lower part, and the rear convex section and the front convex section are in smooth transition connection;

the guide strip is arranged on the rear side of one of the backrest side plates and extends from bottom to top along the rear side of the backrest side plate.

As a preferred technical solution, at least three guide bar seats are fixed to the rear side of the backrest side plate where the guide bars are located, the guide bar seats are fixedly disposed on the backrest side plate, all the guide bar seats are distributed along the backrest side plate, the same guide bar is mounted on all the guide bar seats, and the limiting plate groups are distributed among the guide bar seats.

As a preferred technical scheme, the concave part at the rear side of the front convex section is provided with one guide strip seat, a bent limit steel wire is fixedly arranged on the guide strip seat, the limit steel wire bypasses the guide strip backwards, two ends of the limit steel wire are respectively fixedly connected with the guide strip seat, and the middle section of the limit steel wire is parallel to the guide strip.

Preferably, a safety belt is inserted into the sliding cavity, the safety belt slides along the safety belt sliding path, and the safety belt abuts against the elastic disturbance element towards one side of the curved intrados of the safety belt sliding path.

Compared with the prior art, the beneficial effects of the utility model are that: the elastic disturbance piece generates elastic vibration when being touched by the sliding safety belt, so that the safety belt is stirred, and the resistance of the safety belt during retraction is reduced.

Drawings

Fig. 1 is a schematic structural view of the present invention, in which a safety belt is omitted;

FIG. 2 is a schematic view of FIG. 1 from a second perspective;

fig. 3 is a schematic structural diagram of a third viewing angle of fig. 1.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings. For convenience of description, the "up", "down", "left", "right", "front" and "rear" orientations are the corresponding orientations of the seat when installed in a vehicle.

As shown in fig. 1 and 2, a safety belt retraction anti-jamming structure comprises a seat back frame, a guiding and restraining mechanism 170 is arranged on the seat back frame, the guiding and restraining mechanism 170 is provided with a sliding cavity 176 for sliding the safety belt, the sliding cavity 176 is a continuous cavity or at least two separated cavities on the same curve, so as to form a safety belt sliding path, and an elastic disturbance member 172 is arranged on the safety belt sliding path. The elastic disturbance member 172 generates elastic vibration when being touched by the sliding seat belt, thereby playing a role of shifting the seat belt and reducing resistance when the seat belt retracts.

In this embodiment, the guiding and restraining mechanism 170 includes a guiding bar 171 disposed at the rear side of the backrest frame, one side of the guiding bar 171 faces the backrest frame, a limiting plate 173 is disposed at the other side of the guiding bar 171, and a flat cavity is defined between the limiting plate 173 and the guiding bar 171, and the flat cavity forms the sliding cavity 176. The guide bar 171 has at least one bent portion.

Elastic disturbance piece 172 is the buckled plate, this buckled plate with direction restraint mechanism 170 is connected, and this buckled plate is along the extending direction setting of safety belt sliding path, line on this buckled plate with the extending direction on safety belt sliding path is perpendicular.

In this embodiment, the partial segments of the guide strips 171 are alternately deformed toward both sides thereof to form the corrugated plate.

At least two limiting plate groups are arranged on the guide strip 171, and each limiting plate group comprises two limiting plates 173 which are oppositely arranged and respectively positioned on two sides of the guide strip 171. The limiting plate 173 is strip-shaped, the limiting plate 173 extends along the direction of the guide bar 171, the cross section of the limiting plate 173 is L-shaped, one long edge of the limiting plate 173 is connected with the edge of the rear side of the guide bar 171, and the other long edge of the limiting plate 173 is located at the rear side of the guide bar 171 and is parallel to the guide bar. The two limit plates 173 in the same group are close to the long sides of the guide bars 171 parallel to each other. The corrugated plates and the bending parts are distributed among the limiting plate groups.

The backrest framework comprises two backrest side plates 120 which are oppositely arranged left and right, the two backrest side plates 120 are vertically arranged, an upper backrest transverse pipe 110 is connected between the upper ends of the two backrest side plates 120, and a lower backrest transverse plate is connected between the lower ends of the two backrest side plates 120.

As shown in fig. 3, the back side plate 120 includes a rear convex section at the upper portion and a front convex section at the lower portion, and the rear convex section and the front convex section are smoothly transited and connected. The guide bar 171 is disposed at the rear side of one of the back side plates 120, and the guide bar 171 extends from bottom to top along the rear side of the back side plate 120.

As shown in fig. 1 to 3, at least three guide bar seats 174 are fixed on the rear side of the backrest side plate 120 where the guide bars 171 are located, the guide bar seats 174 are fixedly disposed on the backrest side plate 120, all the guide bar seats 174 are distributed along the backrest side plate 120, the same guide bar 171 is mounted on all the guide bar seats 174, and the limiting plate groups are distributed between the guide bar seats 174.

As shown in fig. 3, the concave part at the rear side of the front convex section is provided with the guide bar seat 174, the guide bar seat 174 is fixedly provided with a bent limiting steel wire 175, the limiting steel wire 175 passes backwards around the guide bar 171, two ends of the limiting steel wire 175 are respectively fixedly connected with the guide bar seat 174, and the middle section of the limiting steel wire 175 is parallel to the guide bar 171.

A safety belt (not shown) is inserted into the sliding chamber 176, and slides along the safety belt sliding path, and the safety belt abuts against the corrugated plate toward one side of the curved intrados of the safety belt sliding path. Since the seat belt is inserted into the sliding cavity 176 along the guide strip 171, the seat belt bends along the direction of the guide strip 171, and particularly at the position of the stopper wire 175, the rear side of the seat belt abuts against the stopper wire 175. But where the front side of the safety belt abuts against the buckle. Since the webbing passes through the plurality of curved portions and rubs against the sliding chamber 176 and the inner wall of the guide bar 171 during sliding, the webbing may be jammed during retraction. When the corrugated plate is triggered by the safety belt to vibrate towards two sides, the safety belt is always in a state of small-amplitude vibration when retracting and sliding, and clamping stagnation can be effectively prevented.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims

1. The utility model provides a safety belt is retracted and is prevented clamping stagnation structure, includes backrest skeleton, is provided with direction restraint mechanism (170) on this backrest skeleton, its characterized in that: the guiding and restraining mechanism (170) is provided with a sliding cavity (176) for sliding the safety belt, the sliding cavity (176) is a continuous cavity or at least two separated cavities positioned on the same curve, the sliding cavity (176) defines a safety belt sliding path for sliding the safety belt, and an elastic disturbance element (172) is arranged on the safety belt sliding path.

2. The webbing retraction anti-jamming structure according to claim 1, characterized in that: elasticity disturbance spare (172) are the buckled plate, this buckled plate with direction restraint mechanism (170) are connected, and this buckled plate is along the extending direction setting in safety belt sliding path, line on this buckled plate with the extending direction on safety belt sliding path is perpendicular.

3. The webbing retraction anti-jamming structure according to claim 2, characterized in that: the guide constraint mechanism (170) comprises a guide strip (171) arranged at the rear side of the backrest frame, one side of the guide strip (171) faces the backrest frame, a limit plate (173) is arranged at the other side of the guide strip (171), a flat cavity is enclosed between the limit plate (173) and the guide strip (171), and the cavity forms the sliding cavity (176);

-the partial segments of the guide strips (171) are alternatively deformed towards both sides thereof to form the corrugated sheet;

the guide bar (171) has at least one bend.

4. The webbing retraction anti-jamming structure of claim 3, wherein: the guide strip (171) is provided with at least two limiting plate groups, and each limiting plate group comprises two limiting plates (173) which are oppositely arranged and are respectively positioned at two sides of the guide strip (171);

the limiting plates (173) are strip-shaped, the limiting plates (173) extend along the direction of the guide bars (171), the cross sections of the limiting plates (173) are L-shaped, one long edge of each limiting plate (173) is connected with the edge of the rear side of the guide bar (171), and the other long edge of each limiting plate (173) is positioned at the rear side of the guide bar (171) and is parallel to the guide bar;

5. The webbing retraction anti-jamming structure of claim 4, wherein: the backrest framework comprises two backrest side plates (120) which are oppositely arranged at the left and right sides, the two backrest side plates (120) are vertically arranged, a backrest upper transverse pipe (110) is connected between the upper ends of the two backrest side plates (120), and a backrest lower transverse plate is connected between the lower ends of the two backrest side plates (120);

the backrest side plate (120) comprises a rear convex section positioned at the upper part and a front convex section positioned at the lower part, and the rear convex section and the front convex section are in smooth transition connection;

the guide strip (171) is arranged on the rear side of one of the backrest side plates (120), and the guide strip (171) extends from bottom to top along the rear side of the backrest side plate (120).

6. The webbing retraction anti-jamming structure of claim 5, wherein: the backrest side plate (120) rear side where the guide strip (171) is located is fixed with at least three guide strip seats (174), the guide strip seats (174) are fixedly arranged on the backrest side plate (120), all the guide strip seats (174) are distributed along the backrest side plate (120), the same guide strip (171) is installed on all the guide strip seats (174), and the limiting plate groups are distributed among the guide strip seats (174).

7. The webbing retraction anti-jamming structure of claim 6, wherein: the concave part in the rear side of the front convex section is provided with one guide strip seat (174), a bent limiting steel wire (175) is fixedly arranged on the guide strip seat (174), the limiting steel wire (175) bypasses the guide strip (171) backwards, two ends of the limiting steel wire (175) are fixedly connected with the guide strip seat (174), and the middle section of the limiting steel wire (175) is parallel to the guide strip (171).

8. The seatbelt retraction anti-jamming structure according to any one of claims 1 to 7, wherein: a safety belt penetrates through the sliding cavity (176), slides along the safety belt sliding path, and abuts against the elastic disturbance piece (172) towards one side of the curved intrados of the safety belt sliding path.