CN217969462U - Mounting structure of seat belt retractor and seat belt retractor device - Google Patents

Abstract

The application provides a mounting structure and a safety belt coiler device of a safety belt coiler. The mounting structure comprises a fixed frame, a mounting bracket, a plurality of first fixing pieces and a plurality of first shock insulation pieces. The fixed frame is used for assembling a safety belt retractor and is connected with an external vehicle body; the fixing frame includes a fixing support portion. The mounting bracket comprises a plurality of first mounting holes which penetrate through the mounting bracket; the plurality of first mounting holes are arranged at intervals along the extending direction of the mounting bracket. A plurality of first mounting installing supports correspond the matching through a plurality of first mountings and a plurality of first mounting hole, and are fixed with the fixed bolster. The first shock insulation pieces are located on two sides of the mounting support and are respectively arranged between the mounting support and the fixed supporting part and between the mounting support and the first fixing pieces. So set up a plurality of first shock insulation pieces and can reduce the excitation of vibration source to the safety belt coiler to reduce the noise that the subassembly was felt to the car, simple structure and cost are lower.

Description

Mounting structure of seat belt retractor and seat belt retractor device

Technical Field

The application relates to the technical field of vehicle parts, in particular to a mounting structure of a safety belt retractor and a safety belt retractor device.

Background

The retractor is the most important component in a seat belt system and is also the most complex mechanical part. The retractor is a device for winding and storing part or all of a seat belt in a seat belt assembly and having a locking function after some mechanism is added. The safety belt coiler is for satisfying the requirement of acceleration locking and slope locking in the regulation, and the subassembly is felt to the internal design car of safety belt coiler, and the subassembly response vehicle acceleration and vehicle inclination are felt to the safety belt utilization this car, and when vehicle acceleration or inclination surpassed the threshold value, the safety belt will lock to guarantee passenger's safety. The core component in the vehicle sensing component is a movable steel ball, and on a bumpy road surface, the steel ball in an inductor inside the retractor can rock in a ball cage to generate noise, and the noise belongs to vibration sound inevitable for a mechanical structure. The related art noise reduction scheme may improve the noise problem to some extent, but still has certain limitations and disadvantages.

Disclosure of Invention

The application provides a noise reduction's safety belt retractor's mounting structure and safety belt retractor device.

The application provides a mounting structure of safety belt coiler includes:

a fixing frame for assembling a seatbelt retractor and connected to an external vehicle body; the fixed frame comprises a fixed support part;

the mounting bracket comprises a plurality of first mounting holes which penetrate through the mounting bracket; the plurality of first mounting holes are arranged at intervals along the extension direction of the mounting bracket;

the mounting bracket is correspondingly matched with the first mounting holes through the first fixing pieces and is fixed with the fixing support part; and

and the first shock insulation pieces are positioned on two sides of the mounting bracket and respectively arranged between the mounting bracket and the fixed supporting part and between the mounting bracket and the first fixing pieces.

Optionally, the first shock insulation piece is a ring shock insulation piece, the first shock insulation piece is provided with a shock insulation groove, and the shock insulation groove is arranged along the circumferential extension of the first shock insulation piece.

Optionally, the first shock insulation member includes a first sub shock insulation member and a second sub shock insulation member, the first sub shock insulation member is sandwiched between the fixed support portion and the mounting bracket, and the second sub shock insulation member is sandwiched between the first fixing members and the mounting bracket.

Optionally, a dimension of the first sub-seismic-isolation member in the axial direction is equal to or greater than a dimension of the second sub-seismic-isolation member in the axial direction.

Optionally, the first fixing member includes a first fixing body, and a first fixing portion and a second fixing portion that are disposed at two ends of the first fixing body, the first fixing body is inserted into the first mounting hole, the first fixing portion is abutted against one side of the fixing support portion away from the first sub-vibration-isolating member, and the second fixing portion is abutted against the second sub-vibration-isolating member; wherein a dimension of the second sub-seismic-isolation member in the axial direction is equal to or larger than a dimension of the second fixing portion in the axial direction.

Optionally, the first shock insulation member is a rubber shock insulation member.

Optionally, the mounting bracket includes a plurality of second mounting holes penetrating therethrough, and the second mounting holes are located on two sides of the mounting bracket in the extending direction, opposite to the first mounting holes; the mounting structure comprises a plurality of second fixing pieces, and the mounting bracket is connected with the external automobile body through the corresponding matching of the second fixing pieces and the second mounting holes.

Optionally, the mounting structure further comprises a plurality of second shock insulation members, the second shock insulation members are ring shock insulation members, are arranged in the second mounting holes, and are clamped with the second fixing members.

Optionally, the second shock insulation piece is provided with a plurality of shock absorption holes, and the plurality of shock absorption holes are arranged along the axial extension of the second shock insulation piece and distributed at intervals along the circumferential direction of the second shock insulation piece.

Optionally, the second shock insulation member is a rubber shock insulation member.

Optionally, the second fixing part comprises a second fixing body, a third fixing part and a fourth fixing part, the third fixing part and the fourth fixing part are arranged at two ends of the second fixing body, the second fixing body is provided with a butt boss and a clamping boss, the butt boss is opposite to the clamping boss, the fourth fixing part is closer to the third fixing part, the butt boss is opposite to the clamping boss, the third fixing part is close to the clamping boss, the second shock insulation piece is clamped between the outer wall of the clamping boss and the inner wall of the second mounting hole, and the butt boss is abutted to the surface of the second shock insulation piece and the surface of the mounting bracket.

Optionally, the maximum size of the clamping boss is smaller than the maximum size of the abutting boss.

Optionally, the maximum dimension of the abutment boss is greater than the maximum dimension of the second mounting hole.

The present application further provides a seatbelt retractor device, including:

the mounting structure of a seatbelt retractor according to any one of the above; and

and the safety belt retractor is connected with the external vehicle body through the mounting structure.

The mounting structure of safety belt coiler of this application embodiment for the equipment safety belt coiler sets up a plurality of first shock insulation pieces respectively between installing support and fixed support portion and between installing support and a plurality of first mounting, and a plurality of first shock insulation pieces can reduce the excitation of vibration source to safety belt coiler, thereby reduce the noise that the subassembly was felt to the car, and simple structure and cost are lower.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

Fig. 1 is a schematic structural view showing one embodiment of a mounting structure of a seatbelt retractor of the present application.

Fig. 2 is a structural view showing one perspective of a mounting structure of the seatbelt retractor of fig. 1.

Fig. 3 is a structural view showing another view of the mounting structure of the seatbelt retractor of fig. 1.

Fig. 4 is a schematic structural view of a first seismic isolator of the mounting structure of the seatbelt retractor of fig. 1.

Fig. 5 is a schematic structural view of a second seismic isolation member of the mounting structure of the seatbelt retractor of fig. 1.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "a number" means two or more. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

The application provides a mounting structure of safety belt coiler, including fixed frame, installing support, a plurality of first mounting and a plurality of first shock insulation piece. The fixed frame is used for assembling a safety belt retractor and is connected with an external vehicle body; the fixing frame includes a fixing support portion. The mounting bracket comprises a plurality of first mounting holes which penetrate through; the first mounting holes are arranged at intervals along the extending direction of the mounting bracket. A plurality of first mounting installing supports correspond the matching through a plurality of first mountings and a plurality of first mounting hole, and are fixed with the fixed bolster. The first shock insulation pieces are located on two sides of the mounting support and are respectively arranged between the mounting support and the fixed supporting part and between the mounting support and the first fixing pieces. So set up a plurality of first shock insulation pieces between installing support and fixed stay portion and between installing support and a plurality of first mounting respectively, a plurality of first shock insulation pieces can reduce the excitation of vibration source to the safety belt coiler to reduce the noise of car sense subassembly, simple structure and cost are lower.

The application provides a mounting structure and a safety belt coiler device of a safety belt coiler. The following describes in detail a mounting structure of a seatbelt retractor and a seatbelt retractor device according to the present invention with reference to the accompanying drawings. The features of the following examples and embodiments may be combined with each other without conflict.

Fig. 1 is a schematic structural view showing an embodiment of a mounting structure 1 of a seatbelt retractor of the present application. Fig. 2 is a schematic structural view showing a perspective of the mounting structure 1 of the seatbelt retractor of fig. 1. Fig. 3 is a schematic structural view showing another view of the mounting structure 1 of the seatbelt retractor of fig. 1. As shown in fig. 1 to 3, the mounting structure 1 of a seatbelt retractor is used for assembling a seatbelt retractor (not shown). In some embodiments, the mounting structure 1 of the seatbelt retractor includes a fixing frame 11, a mounting bracket 12, a plurality of first fixing members 13, and a plurality of first vibration isolators 14. In particular, the amount of the solvent to be used,

the fixed frame 11 is used for assembling a seatbelt retractor (not shown), and is connected to an external vehicle body (not shown). The fixing frame 11 functions to connect the seatbelt retractor and the outer vehicle body. In some embodiments, the fixing frame 11 includes a fixing support 111. The fixing support 111 may be a plane support. The mounting bracket 12 includes a plurality of first mounting holes 121 therethrough. The first mounting holes 121 are provided at intervals in the extending direction of the mounting bracket 12. In the present application, the mounting bracket 12 is a plate-like bracket, and may be a sheet metal bracket, for example. The mounting bracket 12 includes four first mounting holes 121, and the four first mounting holes 121 are used to connect the first mounting holes 121 of the fixing frame 11. The mounting bracket 12 is fixed to the fixing support 111 by correspondingly matching the first fixing members 13 with the first mounting holes 121. The first vibration isolating members 14 are located at two sides of the mounting bracket 12, and are respectively disposed between the mounting bracket 12 and the fixing support portion 111 and between the mounting bracket 12 and the first fixing members 13. So set up a plurality of first shock insulation 14 respectively between installing support 12 and fixed support portion 111 and between installing support 12 and a plurality of first mounting 13, a plurality of first shock insulation 14 can reduce the excitation of vibration source to the safety belt coiler to reduce the noise of car feeling subassembly, simple structure and cost are lower.

In the embodiment shown in fig. 1 to 3, the first seismic-isolation members 14 include first sub-seismic-isolation members 141 and second sub-seismic-isolation members 142. The plurality of first sub-seismic isolation members 141 are interposed between the fixed support portion 111 and the mounting bracket 12. In the present embodiment, the plurality of first sub-vibration isolators 141 include four first sub-vibration isolators 141 for reducing vibration between the fixed support 111 and the mounting bracket 12, thereby reducing noise of the vehicle sensing assembly. The second sub-seismic isolation members 142 are sandwiched between the first fixing members 13 and the mounting bracket 12. In the present embodiment, the plurality of second sub-isolators 142 include four second sub-isolators 142 for reducing vibration between the plurality of first fixing members 13 and the mounting bracket 12, thereby reducing noise of the vehicle sensing assembly. In the present embodiment, the first sub-seismic-isolation members 141 and the second sub-seismic-isolation members 142 have the same structure and the same number. Because the safety belt retractor is assembled on the fixed frame 11, the plurality of first sub-seismic isolation members 141 are clamped between the fixed support portion 111 and the mounting bracket 12, in order to further reduce the vibration of the safety belt retractor, the dimension in the axial direction of the first sub-seismic isolation members 141 is set to be equal to or larger than the dimension in the axial direction of the second sub-seismic isolation members 142, the fixed support portion 111 and the mounting bracket 12 can be separated, contact is avoided, and therefore noise is reduced.

In some embodiments, the first fixing member 13 includes a first fixing body, and a first fixing portion 132 and a second fixing portion 133 disposed at two ends of the first fixing body, the first fixing body is disposed through the first mounting hole 121, the first fixing portion 132 abuts against a side of the fixing support portion 111 away from the first sub-vibration-isolating member 141, and the second fixing portion 133 abuts against the second sub-vibration-isolating member 142. The first sub-vibration isolating piece 141 and the second sub-vibration isolating piece 142 are overlapped on two side surfaces of the mounting bracket 12 through the first fixing portion 132 and the second fixing portion 133, so that vibration generated by an external vehicle body is isolated, direct conduction to a seat belt retractor is avoided, and noise of a vehicle sensing component is reduced. Further, since the second fixing portion 133 is in contact with the second sub-seismic-isolation member, in the fixing process, the pressing force received is large, and in order to ensure that the second sub-seismic-isolation member 142 has a sufficient isolation space, the dimension of the second sub-seismic-isolation member 142 in the axial direction is set to be equal to or larger than the dimension of the second fixing portion 133 in the axial direction. So set up, avoid second fixed part 133 direct contact to installing support 12 to avoid the vibration conduction that outside automobile body produced to the safety belt retractor, thereby reduce the noise of automobile feeling subassembly. In the present embodiment, the first fixing member 13 may be a rivet, but is not limited thereto. In other embodiments, the first fixing member 13 may be other fixing components.

Fig. 4 is a schematic structural view of the first vibration isolating member 14 of the mounting structure 1 of the seatbelt retractor of fig. 1. Referring to fig. 1 to 4, the first seismic isolation member 14 is a ring seismic isolation member, the first seismic isolation member 14 is provided with seismic isolation grooves 143, and the seismic isolation grooves 143 extend along the circumferential direction of the first seismic isolation member 14. In this embodiment, the first sub-seismic-isolation member 141 and the second sub-seismic-isolation member 142 are each provided with a seismic isolation groove 143. Because the first sub-vibration isolating piece 141 is superposed between the fixed supporting part 111 and the mounting bracket 12, and the second sub-vibration isolating piece 142 is superposed between the plurality of first fixing pieces 13 and the mounting bracket 12, vibration in the axial direction (or the Z direction) of the first sub-vibration isolating piece 141 or the second sub-vibration isolating piece 142 can be eliminated or absorbed, so that vibration transmitted to the seatbelt retractor by a vehicle through an external vehicle body is reduced, and the vibration isolating effect is improved. It should be noted that, the size of the first seismic isolation member 14 and the seismic isolation grooves 143 provided in the first seismic isolation member 14 in the axial direction of the first seismic isolation member 14 and the depth in the radial direction of the first seismic isolation member 14 may be designed according to actual requirements, and are not limited in this application.

In some embodiments, the first seismic isolator 14 is a rubber seismic isolator. The rubber shock insulation piece has high elasticity, can isolate vibration conducted between the safety belt retractor by an external automobile body, and improves the shock insulation effect. And the structure is simple, and the cost is lower.

In the embodiment shown in fig. 1 to 3, the mounting bracket 12 includes a plurality of second mounting holes 122 therethrough, and the plurality of second mounting holes 122 are located on both sides of the mounting bracket 12 in the extending direction with respect to the plurality of first mounting holes 121. The mounting structure 1 includes a plurality of second fixing members 15, and the mounting bracket 12 is connected to the external vehicle body through the plurality of second fixing members 15 and the plurality of second mounting holes 122. In the present embodiment, the mounting bracket 12 includes two second mounting holes 122, and the two second mounting holes 122 are used for connecting the outer vehicle body. And the plurality of second mounting holes 122 are located at both sides of the mounting bracket 12 in the extending direction relative to the plurality of first mounting holes 121, so that the vibration of the external vehicle body can be transmitted to the mounting structure 1 of the seatbelt retractor as little as possible, and the noise of the vehicle sensing assembly is reduced.

Fig. 5 is a schematic structural view of the second vibration isolating member 16 of the mounting structure 1 of the seatbelt retractor of fig. 1. In the embodiment shown in fig. 1 to 3 and 5, the mounting structure 1 further includes a plurality of second seismic isolation members 16, and the second seismic isolation members 16 are ring seismic isolation members, and are disposed in the second mounting holes 122 and clamped with the second fixing member 15. The second vibration isolating piece 16 is arranged in the second mounting hole 122, and can buffer vibration energy of the second fixing piece 15 in the radial direction (also can be in the X-Y direction) of the second mounting hole 122, so that the vibration isolating effect is improved.

In some embodiments, the second seismic isolator 16 is provided with a plurality of shock-absorbing holes 161, and the plurality of shock-absorbing holes 161 are provided along the axial extension of the second seismic isolator 16 and are spaced apart along the circumferential direction of the second seismic isolator 16. The shock absorbing holes 161 can buffer the vibration energy of the second fixing member 15 in the radial direction (or in the X-Y direction) of the second mounting hole 122, thereby improving the shock absorbing effect. It should be noted that the number of the second seismic isolation members 16 and the shock absorbing holes 161 provided in the second seismic isolation members 16 and the size in the radial direction of the second seismic isolation members 16 may be designed according to actual requirements, and is not limited in this application.

In some embodiments, the second vibration isolator 16 is a rubber vibration isolator. The rubber shock insulation piece has high elasticity, can isolate vibration conducted between the safety belt retractor by an external automobile body, and improves the shock insulation effect. And the structure is simple, and the cost is lower.

Returning to the embodiment shown in fig. 1 to 3, the second fixing member 15 includes a second fixing body 151, and a third fixing portion 152 and a fourth fixing portion disposed at two ends of the second fixing body 151, the second fixing body 151 is provided with an abutting boss 154 and a clamping boss 155, the abutting boss 154 and the clamping boss 155 are closer to the third fixing portion 152 than to the fourth fixing portion, the abutting boss 154 is closer to the third fixing portion 152 than to the clamping boss 155, the second vibration isolating member 16 is clamped between an outer wall of the clamping boss 155 and an inner wall of the second mounting hole 122, and the abutting boss 154 abuts against a surface of the second vibration isolating member 16 and a surface of the mounting bracket 12. This arrangement allows the second fixing member 15 to be stably fixed in the second mounting hole 122. The maximum dimension setting of joint boss 155 is less than the maximum dimension of butt boss 154 to guarantee that the one end butt of second shock insulation piece 16 in butt boss 154, prevent that second shock insulation piece 16 breaks away from in the second mounting hole 122. In addition, the maximum size of the abutment boss 154 is larger than the maximum size of the second mounting hole 122, so as to ensure that the second fixing member 15 abuts against the mounting bracket 12, and the fixing stability is better. In this embodiment, the second fixing member 15 may be a bolt, which is a stepped bolt and has a snap boss 155 and an abutment boss 154. In other embodiments, the second fixing element 15 may also be other fixing components, which are not limited in this application.

In the above-described aspect, by adding a shock absorbing or vibration isolating measure to the mounting structure 1, for example, by using the first vibration isolating member 14 and the second vibration isolating member 16 in combination, the excitation of the vibration source to the seatbelt retractor is reduced, thereby reducing the vehicle ball feeling noise.

The present application further provides a seatbelt retractor device including the above-mentioned mounting structure 1 of the seatbelt retractor shown in the embodiment of fig. 1 to 5 and a seatbelt retractor (not shown), wherein the seatbelt retractor is connected to an external vehicle body through the mounting structure 1. So set up, through mounting structure 1's shock attenuation shock insulation measure, reduce the excitation of vibration source to the safety belt coiler to reduce the car and feel ball noise.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (10)

1. A mounting structure of a seatbelt retractor, comprising:

a fixing frame for assembling a seatbelt retractor and connected to an external vehicle body; the fixing frame comprises a fixing support part;

the mounting bracket comprises a plurality of first through mounting holes; the plurality of first mounting holes are arranged at intervals along the extension direction of the mounting bracket;

the mounting bracket is correspondingly matched with the first mounting holes through the first fixing pieces and is fixed with the fixing support part; and

the first shock insulation pieces are positioned on two sides of the mounting support and are respectively arranged between the mounting support and the fixed supporting part and between the mounting support and the first fixing pieces.

2. The mounting structure according to claim 1, wherein the first seismic isolation member is a ring-shaped seismic isolation member provided with a seismic isolation groove extending in a circumferential direction of the first seismic isolation member.

3. The mounting structure according to claim 1 or 2, wherein the first seismic isolation member includes a first sub-seismic isolation member and a second sub-seismic isolation member, the plurality of first sub-seismic isolation members are interposed between the fixed support portion and the mounting bracket, and the plurality of second sub-seismic isolation members are interposed between the plurality of first fixing members and the mounting bracket.

4. The mounting structure according to claim 3, wherein a dimension in an axial direction of the first sub-seismic-isolation member is equal to or larger than a dimension in an axial direction of the second sub-seismic-isolation member; and/or

The first fixing piece comprises a first fixing main body, a first fixing part and a second fixing part, the first fixing part and the second fixing part are arranged at two ends of the first fixing main body, the first fixing main body is arranged in the first mounting hole in a penetrating mode, the first fixing part is abutted against one side, away from the first sub-shock insulation piece, of the fixing and supporting part, and the second fixing part is abutted against the second sub-shock insulation piece; wherein a dimension of the second sub-seismic-isolation member in the axial direction is equal to or larger than a dimension of the second fixing portion in the axial direction; and/or

The first shock insulation piece is a rubber shock insulation piece.

5. The mounting structure according to claim 1, wherein the mounting bracket includes a plurality of second mounting holes therethrough, the plurality of second mounting holes being located on both sides of the mounting bracket in the extending direction with respect to the plurality of first mounting holes; the mounting structure comprises a plurality of second fixing pieces, and the mounting bracket is connected with the external automobile body through the corresponding matching of the second fixing pieces and the second mounting holes.

6. The mounting structure of claim 5, further comprising a plurality of second shock insulation members, wherein the second shock insulation members are ring shock insulation members, are arranged in the second mounting holes, and are clamped with the second fixing member.

7. The mounting structure according to claim 6, wherein the second seismic isolation member is provided with a plurality of shock-absorbing holes extending in an axial direction of the second seismic isolation member and spaced apart in a circumferential direction of the second seismic isolation member; and/or

The second shock insulation piece is a rubber shock insulation piece.

8. The mounting structure of claim 6, wherein the second fixing member includes a second fixing body, and a third fixing portion and a fourth fixing portion provided at two ends of the second fixing body, the second fixing body is provided with an abutting boss and a clamping boss, the abutting boss and the clamping boss are opposite to the fourth fixing portion and closer to the third fixing portion, the abutting boss is opposite to the clamping boss and close to the third fixing portion, the second shock insulation member is clamped between an outer wall of the clamping boss and an inner wall of the second mounting hole, and the abutting boss abuts against a surface of the second shock insulation member and a surface of the mounting bracket.

9. The mounting structure of claim 8, wherein a maximum dimension of the snap boss is less than a maximum dimension of the abutment boss; and/or

The maximum dimension of the abutting boss is larger than the maximum dimension of the second mounting hole.

10. A seatbelt retractor device characterized by comprising:

the mounting structure of a seatbelt retractor according to any one of claims 1 to 9; and

and the safety belt retractor is connected with the external vehicle body through the mounting structure.

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