A rear seat belt guide adjustment mechanism for a vehicle

Abstract

The application discloses a rear seat safety belt guiding and adjusting mechanism of a vehicle, which comprises a base, a lower sliding sleeve and an upper sliding sleeve. A guiding ring for the safety belt to pass through is arranged on the upper sliding sleeve. A fixing structure for fixing on a rear seat of the vehicle is arranged on the base. The lower sliding sleeve is arranged on the base. The upper sliding sleeve is arranged on the lower sliding sleeve and can be transversely adjusted. The rear seat safety belt guiding and adjusting mechanism has the advantages of reasonable design, adjusted safety belt position after the rear seat safety belt is worn, avoided neck pressing phenomenon, improved wearing comfort of the rear seat safety belt, greatly reduced injury to the neck of a passenger when a collision occurs, simple structure, convenient operation and relatively low cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle safety belt, in particular to a rear seat safety belt guiding and adjusting mechanism. BACKGROUND

[0002] With the rapid development of the automobile industry, cars have become a necessary means of transportation for thousands of households. Among them, the safety belt as a safety configuration needs to be worn close to the body. When a collision occurs, it is an important passive protection device. While providing protection for personal safety, the wearing comfort of the safety belt has become an important issue that cannot be ignored.

[0003] At present, there is a common phenomenon that the rear seat safety belt is worn close to the neck of the passenger, causing the neck to be very uncomfortable due to the pressure. This phenomenon will first make the passenger feel uncomfortable, and secondly, when a collision occurs, it will cause great harm to the neck and pose a safety hazard. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a rear seat safety belt guiding and adjusting mechanism to improve the wearing comfort of the rear seat safety belt.

[0005] To solve the above technical problems, the technical scheme adopted by the present application is:

[0006] The rear seat safety belt guiding and adjusting mechanism comprises a base, a lower sliding sleeve and an upper sliding sleeve, the upper sliding sleeve is provided with a guiding ring for the safety belt to pass through, the base is provided with a fixing structure for fixing on the rear seat of the vehicle, and the lower sliding sleeve is arranged on the base, and the upper sliding sleeve is arranged on the lower sliding sleeve and can be adjusted horizontally.

[0007] Further:

[0008] The lower sliding sleeve is provided with a horizontal sliding groove, and the lower part of the upper sliding sleeve is arranged in the horizontal sliding groove.

[0009] The upper sliding sleeve and the lower sliding sleeve are provided with an elastic locking structure for locking the upper sliding sleeve and a button for pressing the elastic locking structure to unlock, and the button is arranged on the upper sliding sleeve.

[0010] The upper part of the upper sliding sleeve is provided with a through hole, and the guiding ring is arranged in the through hole.

[0011] The two sides of the lower sliding sleeve are provided with hollow protruding structures, and the inner side of the hollow protruding structure is provided with a side opening for the bottom edge of the upper sliding sleeve to extend into.

[0012] The elastic locking structure comprises a rack arranged on the lower sliding sleeve and a steel sheet arranged in the upper sliding sleeve, the upper end of the steel sheet is hinged on the upper sliding sleeve, the lower end of the steel sheet is arranged corresponding to the rack, a spring is arranged between the side of the steel sheet and the inner wall of the upper sliding sleeve, and the inner end of the button is arranged corresponding to the other side of the steel sheet.

[0013] The hollow convex structure is internally provided with a ball bearing facilitating the sliding of the bottom edge of the upper sliding sleeve.

[0014] The steel sheet is a pair of oppositely arranged steel sheets, and one button is arranged corresponding to each steel sheet.

[0015] The lower convex platform is arranged on the side of the steel sheet, the upper convex platform is arranged on the inner wall of the upper sliding sleeve, the lower end of the spring is matched with the lower convex platform, and the upper end of the spring is matched with the upper convex platform.

[0016] The inner part of the upper sliding sleeve is internally provided with a partition plate, the partition plate divides the inner part of the upper sliding sleeve into an upper cavity and a lower cavity, the guide ring is arranged in the upper cavity, and the steel sheet and the spring are arranged in the lower cavity.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] The rear seat belt guiding and adjusting mechanism of the vehicle is reasonable in design, can adjust the position of the rear seat belt after the rear seat belt is worn, avoids the occurrence of the neck pressing phenomenon, improves the wearing comfort of the rear seat belt, and greatly reduces the damage to the neck of the passenger when the collision occurs; and the structure is simple, the operation is simple, and the cost is relatively low. BRIEF DESCRIPTION OF DRAWINGS

[0019] The content expressed by each drawing of the present specification and the marks in the drawings are briefly described as follows:

[0020] Figure 1 It is a side view of the adjusting mechanism of the present application.

[0021] Figure 2 It is a front view of the adjusting mechanism of the present application.

[0022] Figure 3 It is a top view of the adjusting mechanism of the present application.

[0023] Figure 4 It is a side view of the adjusting mechanism of the present application.

[0024] Figure 5 It is a schematic view of the initial locking state of the adjusting mechanism of the present application.

[0025] Figure 6 It is a schematic view of the state of the adjusting mechanism of the present application during adjustment.

[0026] Figure 7 It is a schematic view of the locking state of the adjusting mechanism of the present application after adjustment.

[0027] Figure 8 This is a schematic diagram showing the effect of the mechanism of the present invention installed on the back of the rear seat.

[0028] In the picture:

[0029] 1. Guide ring, 2. Upper sliding sleeve, 3. Spring, 4. Steel sheet, 5. Rack, 6. Button, 7. Lower sliding sleeve, 8. Ball bearing, 9. Bolt, 10. Base, 11. Seat backrest, 12. Seat belt, 13. Upper boss on one side, 14. Upper boss on the other side, 15. Lower boss on one side, 16. Lower boss on the other side, 17. Pin. Detailed Implementation

[0030] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and through the description of the examples.

[0031] like Figures 1 to 8 As shown, the rear seat belt guide adjustment mechanism of the vehicle includes a base 10, a lower sliding sleeve 7 and an upper sliding sleeve 2. The upper sliding sleeve is provided with a guide ring 1 for the seat belt to pass through. The base is provided with a fixing structure for fixing to the rear seat of the vehicle. The lower sliding sleeve is provided on the base, and the upper sliding sleeve is provided on the lower sliding sleeve with a laterally adjustable position.

[0032] The fixing structure consists of fixing holes at both ends of the base. The base is fixed to the top of the seat back 11 by passing mounting bolts through the fixing holes, thereby realizing the installation of the guide adjustment mechanism. After the rear seat belt 12 is worn, the position of the seat belt can be adjusted to avoid the neck choking phenomenon, improve the wearing comfort of the rear seat belt, and at the same time greatly reduce the injury to the neck of the occupant in the event of a collision.

[0033] The lower sliding sleeve is fixed on the base and has a transverse sliding groove. The lower part of the upper sliding sleeve is located in the transverse sliding groove, that is, the upper sliding sleeve can move and adjust its position in the transverse sliding groove of the lower sliding sleeve, thereby adjusting the position of the seat belt through the guide ring.

[0034] Furthermore, an elastic locking structure for locking the upper sliding sleeve 2 and a button 6 for unlocking the elastic locking structure are provided between the upper sliding sleeve 2 and the lower sliding sleeve 7. The upper sliding sleeve is positioned by the elastic locking structure, and the button is located on the side of the upper sliding sleeve. Pressing the button unlocks the elastic locking structure. After unlocking, the upper sliding sleeve can move relative to the lower sliding sleeve to adjust its position. After adjusting the position, releasing the button locks the upper sliding sleeve back into place through the elastic locking structure, thereby achieving the adjusted positioning.

[0035] Preferably, the elastic locking structure includes a rack 5 on the lower sliding sleeve and a steel plate 4 inside the upper sliding sleeve. The upper end of the steel plate is hinged to the upper sliding sleeve by a pin 17, and the lower end of the steel plate is set corresponding to the rack. A spring 3 is provided between one side of the steel plate and the inner wall of the upper sliding sleeve, and the inner end of the button is set corresponding to the other side of the steel plate; or a torsion spring is provided on the pin to ensure elasticity.

[0036] The button protrudes from the upper slide sleeve side in the initial state, the lower end of the steel sheet is clamped in the tooth groove of the rack by the spring, thereby realizing the locking of the upper slide sleeve; the button is pressed to extrude the inner end of the steel sheet, thereby compressing the spring and making the lower end of the steel sheet disengage from the rack, thereby realizing the unlocking of the upper slide sleeve; the spring is reset automatically to realize the locking after the button is released.

[0037] The two side portions of the lower slide sleeve are each provided with a hollow protruding structure, the inner side of the hollow protruding structure is provided with a side opening for the bottom edge of the upper slide sleeve to extend into; the hollow protruding structure is internally provided with a ball bearing 8 for facilitating the sliding of the bottom edge of the upper slide sleeve; the structure is stable and reliable, and the upper slide sleeve realizes sliding through the ball bearing between the upper slide sleeve and the lower slide sleeve.

[0038] The steel sheet is provided with a lower boss on one side, the inner wall of the upper slide sleeve is provided with an upper boss, the lower end of the spring is matched with the lower boss, and the upper end of the spring is matched with the upper boss, so that the structure is compact; the steel sheet is a pair of oppositely arranged ones, one button is arranged for each steel sheet, and the two sides are symmetrically arranged, so that the structure is stable and reliable.

[0039] The upper portion of the upper slide sleeve is provided with a through hole, and the guide ring is arranged in the through hole; preferably, the inside of the upper slide sleeve is provided with a partition plate, the partition plate divides the inside of the upper slide sleeve into an upper cavity and a lower cavity, the guide ring is arranged in the upper cavity, and the steel sheet and the spring are located in the lower cavity.

[0040] The preferred specific examples of the present application are as follows:

[0041] The rear seat safety belt guiding and adjusting mechanism comprises a guide ring 1, an upper slide sleeve 2, springs 3, steel sheets 4, a rack 5, a button 6, a lower slide sleeve 7 and ball bearings 8. The guide ring 1 is fixed on the upper slide sleeve 2, the inside of the upper slide sleeve is provided with two springs 3 and two steel sheets 4, one end of the spring 3 is fixed on one side upper boss 13 and the other side upper boss 14 of the inner surface of the upper slide sleeve 2, the other end of the spring is fixed on one side lower boss 15 and the other side lower boss 16 of the steel sheet 4, and one end of the steel sheet 4 is connected with the pin shaft of the upper slide sleeve in cooperation, and the other end of the steel sheet is in contact with the rack. An installation hole is arranged on the side surface of the upper slide sleeve, the button 6 is embedded, the button 6 is in the form of a boss, and the boss surface is in contact with the steel sheet. The rack 5 is fixed on the lower slide sleeve 7, the lower slide sleeve 7 is fixed on the base 10, the base is fixed on the seat back 9, and the rack, the lower slide sleeve and the base are fixedly connected through bolts 9; the base 10 is fixed on the seat framework through bolts; the safety belt passes through the guide ring 1 and is worn on the occupant.

[0042] As shown in Figure 5 The state of the guiding and adjusting mechanism when it is not adjusted. The two steel sheets 4 in the upper slide sleeve 2 are pressed on the two teeth of the rack 5 by the restoring force of the connected springs 3; the total length of the toothed part of the rack is 80 mm, there is a tooth with an interval of 12 mm, and a total of 5 gears can be adjusted.

[0043] As shown in Figure 6The adjustment state of the guide mechanism is shown. When the passenger wears the safety belt and feels the neck pressing, the buttons 6 on both sides of the guide mechanism can be manually pinched to push the steel sheet 4 to compress the spring 3, so that the steel sheet is separated from the rack 5. Then the upper sleeve 2 is slid, the upper sleeve 2 is slid through the ball 8 between the upper sleeve 2 and the lower sleeve 7, and after being slid to the appropriate position, the button 6 is released, and the steel plate 4 is pressed on the rack 5 by the restoring force of the spring 3, like Figure 7

[0044] In the present application, when the guide ring is not adjusted, the steel sheet in the upper sleeve is clamped on the rack by the restoring force of the spring, which ensures that the guide ring and other components are limited and fixed in the initial position. When the passenger wears the safety belt and finds that the neck is pressed, the two side buttons on the upper sleeve can be pressed to make the steel sheet move left and right to the comfortable position after the steel sheet is separated from the rack, and then the button is released, the spring is reset, the steel sheet is clamped on the rack again, and the adjustment purpose is achieved; thereby improving the comfort of wearing the safety belt in the back row, and greatly reducing the injury to the passenger's neck when the collision occurs; and the structure is simple, the operation is simple, and the cost is relatively low.

[0045] The above is only a description of the preferred embodiment of the present application, and the above technical features can be arbitrarily combined to form multiple embodiments of the present application.

[0046] The present application has been described above in conjunction with the drawings, and it is obvious that the specific implementation of the present application is not limited by the above method. Any non-essential improvement or direct application of the concept and technical solution of the present application to other occasions is within the protection scope of the present application.​

Claims

1. A rear seat belt guide adjustment mechanism for a vehicle, characterized by: The application relates to a seat belt guiding device, which comprises a base, a lower sliding sleeve and an upper sliding sleeve, the upper sliding sleeve is provided with a guiding ring for the seat belt to pass through, the base is provided with a fixing structure for being fixed on a rear seat of a vehicle, the lower sliding sleeve is arranged on the base, and the upper sliding sleeve is arranged on the lower sliding sleeve and can be transversely adjusted; The lower sliding sleeve is provided with a transverse sliding groove, and the lower part of the upper sliding sleeve is arranged in the transverse sliding groove; the two side parts of the lower sliding sleeve are provided with hollow convex structures, and the inner sides of the hollow convex structures are provided with side openings for the bottom edges of the upper sliding sleeve to extend into; the hollow convex structures are internally provided with balls for facilitating the sliding of the bottom edges of the upper sliding sleeve; The upper sliding sleeve and the lower sliding sleeve are provided with an elastic locking structure for locking the upper sliding sleeve and a button for pressing the elastic locking structure to be unlocked, the button is arranged on the upper sliding sleeve; the elastic locking structure comprises a rack arranged on the lower sliding sleeve and a steel sheet arranged in the upper sliding sleeve, the upper end of the steel sheet is hinged to the upper sliding sleeve, the lower end of the steel sheet is arranged corresponding to the rack, a spring is arranged between the side of the steel sheet and the inner wall of the upper sliding sleeve, and the inner end of the button is arranged corresponding to the other side of the steel sheet. The steel sheet is a pair of oppositely arranged steel sheets, and one button is arranged corresponding to each steel sheet.

2. The rear seat belt guide adjustment mechanism of claim 1, wherein: The upper part of the upper sliding sleeve is provided with a through hole, and the guiding ring is arranged in the through hole.

3. The vehicle rear seat belt guide adjustment mechanism of claim 1, wherein: The side of the steel sheet is provided with a lower convex platform, the inner wall of the upper sliding sleeve is provided with an upper convex platform, the lower end of the spring is matched with the lower convex platform, and the upper end of the spring is matched with the upper convex platform.

4. The rear seat belt guide adjustment mechanism of claim 3, wherein: The inner part of the upper sliding sleeve is provided with a partition plate, the partition plate divides the inner part of the upper sliding sleeve into an upper cavity and a lower cavity, the guiding ring is arranged in the upper cavity, and the steel sheet and the spring are arranged in the lower cavity.

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