Safety belt retractor arrangement structure of rear row middle seat

Abstract

The invention relates to the technical field of safety belts, and discloses a rear row middle seat safety belt retractor arrangement structure which comprises a ceiling and a retractor body housing, a retractor body is fixed to the inner wall of the bottom of the ceiling through a connecting assembly, and a fixing plate is fixedly connected to the outer wall of one side of the retractor body housing. A fixing plate is fixedly connected to the top of the ceiling, a clamping groove is formed in the bottom of the fixing plate, a plurality of clamping hooks are fixedly connected to the interior of one side of a housing of the retractor body, the clamping hooks are connected with the clamping groove in a clamped mode, a connecting opening is formed in the fixing plate, a screw is inserted into the connecting opening, and a welding nut is fixedly connected to the outer wall of the top of the ceiling. According to the automobile safety belt retractor, the retractor body can be fixed to the automobile ceiling, the problem of arrangement of the safety belt retractor due to the small space of a middle seat in the rear row is solved, and the retractor housing can be conveniently disassembled and assembled through matched use of the clamping hooks and the clamping grooves.

Description

Technical Field

[0001] This invention relates to the field of seat belt technology, specifically to a seat belt retractor arrangement structure for the middle rear seat. Background Technology

[0002] In the event of a vehicle collision, seat belts, through their restraining properties, can effectively reduce the injuries caused to occupants, playing a vital role in protecting their lives.

[0003] A complete seat belt assembly includes the retractor body, and this part is a critical component.

[0004] In some vehicles, during the design and layout phase, passenger comfort is considered, and the seats on both sides of the rear row are widened appropriately, resulting in a narrower middle seat in the rear row. This affects the limited space for the seat belt retractor, and an unreasonable assembly environment can also weaken the strength and performance of the seat belt, while also affecting the ease of wearing for passengers.

[0005] The seatbelt retractor for the middle rear seat is usually located inside the seat, but this is not suitable for vehicles with limited space. Furthermore, when the seat is folded down, the exposed seatbelt webbing is easily soiled by foreign objects, and items in the trunk may scratch the webbing. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this invention provides a seatbelt retractor arrangement structure for the middle rear seat. This structure primarily addresses the issue that while the seatbelt retractor for the middle rear seat is located inside the seat, it is not suitable for vehicles with limited space. Furthermore, when the seat is folded down, the exposed seatbelt webbing is easily soiled by foreign objects, and items in the trunk may scratch the webbing.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] A rear middle seatbelt retractor body arrangement structure includes a canopy and a retractor body cover. The retractor body is fixed to the bottom inner wall of the canopy via a connecting assembly. A fixing plate is fixedly connected to one outer wall of the retractor body cover. A slot is provided at the bottom of the fixing plate. Multiple hooks are fixedly connected to the inside of one side of the retractor body cover, and the hooks engage with the slot. A connection port is provided on the fixing plate, and a screw is inserted into the connection port. A welding nut is fixedly connected to the top outer wall of the canopy. One end of the screw passes through the canopy and is threadedly connected to the welding nut. Two insertion holes are provided on the retractor cover. Two threaded holes are provided on the retractor body cover, and the insertion holes communicate with the threaded holes at corresponding positions. A second screw is inserted into each of the two insertion holes, and the second screw passes through the insertion hole and is threadedly connected to the threaded hole at the corresponding position.

[0011] Furthermore, a seatbelt webbing is wound around the reel of the retractor body, and a small latch and a large latch are fixed to one end of the seatbelt webbing.

[0012] Based on the aforementioned scheme, the retractor body is located inside the retractor body cover, and the retractor body cover is in contact with the inner wall of the ceiling.

[0013] As a further embodiment of the present invention, a groove is provided at the bottom of the canopy, and the seat belt webbing passes through the groove.

[0014] Furthermore, the connecting assembly also includes a slider, which is fixed to the outer side of the retractor body housing and the retractor body cover. A slide rail is fixedly connected to the inner wall of the top of the canopy, and a baffle is movably connected to the outer side of the slide rail. The baffle is fixed to the slider. Multiple slots are provided on the slide rail, and threaded grooves are provided on the baffle. A lead screw is movably connected in the threaded grooves. One end of the lead screw is fixedly connected to an insertion rod, and the insertion rod is inserted into the slot at the corresponding position.

[0015] Based on the aforementioned scheme, the end of the lead screw that extends into the slot is provided with an inclined surface.

[0016] As a further embodiment of the present invention, a knob is fixedly connected to one end of the lead screw extending out of the retaining shell.

[0017] Furthermore, an indicator line is provided on the inner top wall of the canopy, and the indicator line is located on one side of the baffle.

[0018] Based on the aforementioned scheme, a stop block is fixedly connected to one end of the slide rail.

[0019] Furthermore, a positioning groove is provided on the ceiling, and a positioning hook is fixedly connected to the fixing plate, with the positioning hook interlocking with the positioning groove.

[0020] (III) Beneficial Effects

[0021] Compared with the prior art, the present invention provides a seat belt retractor arrangement structure for the middle rear seat, which has the following advantages:

[0022] 1. In this invention, the retractor body is placed on the car roof, and the seat belt webbing is pulled down from the roof. No matter how the seat is reclined or tilted, the seat belt webbing will not touch the seat or other foreign objects. Moreover, the seat belt webbing can be easily obtained from above the seat according to the passenger's needs, effectively solving the problem of seat belt retractor placement caused by the small space in the middle rear seat.

[0023] 2. In this invention, the use of hooks and slots allows for quick connection between the retractor cover and the fixing plate during installation, simply by aligning and snapping them together. This enables the installed retractor cover to protect and decorate the retractor body, thus improving assembly efficiency.

[0024] 3. In this invention, the first screw is threadedly connected to the welded nut, and the second screw is used in conjunction with it. This allows the retractor body to be detachable and ensures that it will not easily shift due to external forces such as vibration and shaking during vehicle operation, thus enabling the seat belt retractor to work normally and stably.

[0025] 4. In this invention, the slot provides a clearance channel for the seat belt webbing, allowing the seat belt webbing to extend smoothly from the retractor body to the passenger's position. At the same time, it plays an auxiliary guiding role for the seat belt webbing, helping the seat belt webbing maintain the correct position and direction during the retraction and extension process. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of a seat belt retractor arrangement structure for the middle rear seat proposed in this invention.

[0027] Figure 2 This is a schematic diagram of the roof sectional structure of a seat belt retractor arrangement structure for the middle rear seat proposed in this invention.

[0028] Figure 3 This is a partial cross-sectional view of the seatbelt retractor arrangement structure for the middle rear seat proposed in this invention.

[0029] Figure 4 This is an enlarged schematic diagram of the fixing plate structure of the seat belt retractor arrangement structure for the middle rear seat proposed in this invention;

[0030] Figure 5 This is an exploded structural diagram of a seatbelt retractor arrangement structure for the middle rear seat proposed in this invention.

[0031] In the diagram: 1. Canopy; 2. Retractor housing; 3. Safety belt webbing; 4. Groove; 5. Welded nut; 6. Retractor body; 7. Fixing plate; 8. First screw; 9. Large locking tongue; 10. Small locking tongue; 11. Slot; 12. Hook; 13. Threaded hole; 14. Second screw; 15. Insertion hole; 16. Positioning hook; 17. Positioning groove. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Reference Figures 1-5 A seatbelt retractor arrangement structure for the middle rear seat includes a canopy 1 and a retractor housing 2. The bottom inner wall of the canopy 1 is fixed to the retractor body 6 via a connecting assembly. The retractor housing 2 protects the retractor body 6, preventing dust and impurities from entering and affecting its normal operation. A fixing plate 7 is bolted to one outer wall of the retractor body 6. A slot 11 is provided at the bottom of the fixing plate 7. Multiple hooks 12 are welded to the inside of one side of the retractor housing 2, and these hooks 12 engage with the slot 11. When installing the retractor housing 2, simply aligning the hooks 12 with the slots 11 quickly completes the connection between the retractor housing 2 and the fixing plate 7. This allows the retractor housing 2 to provide both protection and decoration for the retractor body 6, improving assembly efficiency. The fixing plate 7 has... There is a connection port, into which a first screw 8 is inserted. A welding nut 5 is welded to the top outer wall of the canopy 1. One end of the first screw 8 passes through the canopy 1 and is threadedly connected to the welding nut 5. Through the cooperation of the first screw 8 and the welded welding nut 5, the retractor body 6 can be disassembled and stably installed on the canopy 1, ensuring that the retractor body 6 will not easily shift due to vibration and shaking external forces during vehicle operation, thus ensuring the normal and stable operation of the seat belt retractor. Two insertion holes 15 are opened on the retractor cover 2, and two threaded holes 13 are opened on the retractor body 6 housing. The insertion holes 15 are connected to the corresponding threaded holes 13. A second screw 14 is inserted into each of the two insertion holes 15, and the second screw 14 passes through the insertion hole 15 and is threadedly connected to the corresponding threaded hole 13.

[0034] It should be noted that the retractor body 6 has a seat belt webbing 3 wound on its spool. One end of the seat belt webbing 3 is fixed with a small locking tongue 10 and a large locking tongue 9. The retractor body 6 is located inside the retractor housing 2. The retractor housing 2 is in contact with the inner wall of the ceiling 1. The bottom of the ceiling 1 has a slot 4, through which the seat belt webbing 3 passes. The slot 4 provides a clearance channel for the seat belt webbing 3, allowing it to extend smoothly from the retractor body 6 to the passenger's position. At the same time, the slot 4 also provides a certain guiding effect for the seat belt webbing 3, helping it to maintain the correct position and direction during retraction and extension. The ceiling 1 has a positioning groove 17, and a positioning hook 16 is welded to the fixing plate 7. The positioning hook 16 is inserted into the positioning groove 17.

[0035] Working principle of this embodiment:

[0036] When installing the retractor body 6, first fix the retractor body 6 in the positioning groove 17 on the ceiling 1 by the positioning hook 16 on the fixing plate 7.

[0037] Simultaneously, align the hook 12 with the slot 11 and engage it.

[0038] Then, one end of the first screw 8 is passed through the connection port and rotated into the welding nut 5. Through the cooperation of the first screw 8 and the welding nut 5, the retractor body 6 is pre-fixed on the ceiling 1.

[0039] Then, the second screw 14 is rotated from the insertion hole 15 and inserted into the corresponding threaded hole 13, so that the retractor body 6 and the retractor cover 2 are further locked and fixed.

[0040] When in use, the passenger pulls the small latch 10 or the large latch 9, and the seat belt webbing 3 is pulled out from the shaft of the retractor body 6. At this time, the shaft inside the retractor body 6 rotates against the spring force, allowing the seat belt webbing to extend out. The small latch 10 and the large latch 9 are then inserted into the corresponding buckles on the vehicle seat to restrain the passenger in the seat. When the passenger unlocks the buckle, the spring inside the retractor body 6 will drive the shaft to rotate in the opposite direction, automatically retracting the seat belt webbing 3 into the retractor body 6, thus completing the seat belt storage.

[0041] In the description herein, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to fixed connections, mechanical connections, electrical connections, or direct connections. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0042] In the description herein, it should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seatbelt retractor arrangement structure for the middle rear seat, comprising a canopy (1) and a retractor housing (2), characterized in that, The bottom inner wall of the canopy (1) is fixed with a retractor body (6) by a connecting assembly. A fixing plate (7) is fixedly connected to one side outer wall of the retractor body (6). A slot (11) is provided at the bottom of the fixing plate (7). Multiple hooks (12) are fixedly connected to the inside of one side of the retractor cover (2), and the hooks (12) engage with the slots (11). A connection port is provided on the fixing plate (7), and a screw (8) is inserted into the connection port. A welding rod is fixedly connected to the top outer wall of the canopy (1). The screw (8) is connected to the nut (5). One end of the screw (8) passes through the roof (1) and is threadedly connected to the weld nut (5). The retractor cover (2) has two insertion holes (1) (5). The retractor body (6) has two threaded holes (13). The insertion hole (15) is connected to the threaded hole (13) at the corresponding position. A second screw (14) is inserted into each of the two insertion holes (15). The second screw (14) passes through the insertion hole (15) and is threadedly connected to the threaded hole (13) at the corresponding position.

2. The arrangement structure of the seat belt retractor for the middle rear seat according to claim 1, characterized in that, The retractor body (6) has a seat belt webbing (3) wound on its spool, and one end of the seat belt webbing (3) is fixed with a small latch (10) and a large latch (9).

3. The arrangement structure of the seat belt retractor for the middle rear seat according to claim 1, characterized in that, The retractor body (6) is located inside the retractor housing (2), and the retractor housing (2) is in contact with the inner wall of the ceiling (1).

4. The arrangement structure of the seat belt retractor for the middle rear seat according to claim 1, characterized in that, The bottom of the canopy (1) is provided with a slot (4), and the seat belt webbing (3) passes through the slot (4).

5. The arrangement structure of the seat belt retractor for the middle rear seat according to claim 1, characterized in that, The ceiling (1) is provided with a positioning groove (17), and a positioning hook (16) is fixedly connected to the fixing plate (7), and the positioning hook (16) is inserted into the positioning groove (17).

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