CN110562190B - Mandrel assembly and safety belt retractor - Google Patents
Mandrel assembly and safety belt retractor Download PDFInfo
- Publication number
- CN110562190B CN110562190B CN201910982245.1A CN201910982245A CN110562190B CN 110562190 B CN110562190 B CN 110562190B CN 201910982245 A CN201910982245 A CN 201910982245A CN 110562190 B CN110562190 B CN 110562190B
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- limiting
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- wire
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- 230000000670 limiting effect Effects 0.000 claims abstract description 239
- 238000000034 method Methods 0.000 claims abstract description 15
- 230000020347 spindle assembly Effects 0.000 claims abstract description 9
- 238000005452 bending Methods 0.000 claims description 43
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004804 winding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/34—Belt retractors, e.g. reels
- B60R22/46—Reels with means to tension the belt in an emergency by forced winding up
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
The application relates to the technical field of safety belts, in particular to a mandrel assembly and a safety belt retractor. The mandrel assembly comprises a mandrel, a torsion member, a force limiting wire and a shaft head; a curved limit groove is formed on the torsion member, and a convex limit part is formed on the end surface of the mandrel; one part of the force limiting wire is positioned in the curved limiting groove, and the other part of the force limiting wire can bypass the convex limiting part and extend along the first direction on the end surface of the mandrel; in the process that the mandrel is stressed and rotates along the second direction relative to the shaft head, one part of the force limiting wire can be clamped in the curved limiting groove, the other part of the force limiting wire can be abutted against the convex limiting part, and the force limiting wire is wound between the torsion member and the convex limiting part along the second direction, so that the force limiting wire can provide force for the rotation of the mandrel in the process. The mandrel assembly provided by the application provides a novel force limiting wire clamping mode so as to improve the secondary force limiting stroke of the mandrel assembly. The seatbelt retractor of the present application includes the spindle assembly, and thus also has an effect of being able to improve the secondary force limiting stroke.
Description
Technical Field
The invention relates to the technical field of safety belts, in particular to a mandrel assembly and a safety belt retractor.
Background
When people wear the safety belt and drive or take the vehicle, if the vehicle collides with the accident, the safety belt pretensioner can lock the safety belt pretensioner to prevent the safety belt from being pulled out so as to protect the human body. However, under the action of the inertia of the human body, the mandrel of the safety belt retractor still can rotate under the force. In the prior art, a torsion piece is arranged in the mandrel to be matched with a force limiting wire to carry out secondary force limiting on the rotation of the mandrel, but the secondary force limiting stroke of the force limiting wire needs to be improved.
Disclosure of Invention
The application aims to provide a mandrel assembly and a safety belt retractor, so that the secondary force limiting stroke of a force limiting wire on a mandrel is improved to a certain extent.
The application provides a mandrel assembly, which is used for a safety belt retractor and comprises a mandrel, a torsion member, a force limiting wire and a shaft head;
The first end of the torsion member is positioned in the mandrel and connected with the mandrel; the second end of the torsion member protrudes out of the end face of the mandrel and is connected with the shaft head;
A curved limiting groove is formed at the second end of the torsion member, and a convex limiting part is formed on the corresponding end surface of the mandrel; a part of the force limiting wire is positioned in the curved limiting groove and is matched with the shape of the curved limiting groove; the other part of the force limiting wire can bypass the convex limiting part and extend along a first direction on the end face of the mandrel; in the process that the mandrel is stressed and rotates along the second direction relative to the shaft head, one part of the force limiting wire can be clamped in the curved limiting groove, and the other part of the force limiting wire can be abutted against the protruding limiting part and wound between the torsion member and the protruding limiting part along the second direction.
In the above technical solution, preferably, the number of the protruding limiting portions on the end face of the mandrel is one, and an extension portion of the force limiting wire on the end face of the mandrel is spiral.
In any one of the above aspects, preferably, the torsion member includes a torsion bar and a torsion head;
The torsion bar is positioned in the mandrel, and one end of the torsion bar is in spline connection with the mandrel; the other end of the torsion bar is connected with the torsion head spline;
One end of the torsion head is provided with the curved limit groove.
In any of the above technical solutions, preferably, the torque head is formed with a first limiting portion, a second limiting portion, and a third limiting portion;
A first curved groove is formed between the first limiting part and the second limiting part, a second curved groove is formed between the first limiting part and the third limiting part, and the first curved groove is communicated with the second curved groove and forms the curved limiting groove;
the force limiting wire is provided with a first bending part matched with the first curved groove and a second bending part matched with the second curved groove, so that the part of the force limiting wire can be clamped into the curved limiting groove.
In any of the above technical solutions, preferably, the second limiting portion and the third limiting portion are respectively located at two sides of the first limiting portion, and the first limiting portion is cylindrical, so that the first curved groove and the second curved groove form an annular curved limiting groove.
In any of the above technical solutions, preferably, a fourth limiting portion is further provided between the second limiting portion and the third limiting portion, a third limiting groove is formed between the fourth limiting portion and the second limiting portion, and a fourth curved groove is formed between the fourth limiting portion and the third limiting portion; the third limit groove, the first curved groove, the second curved groove and the fourth curved groove are sequentially communicated to form the curved limit groove;
The force limiting wire is provided with a third connecting part matched with the third limiting groove and a fourth bending part matched with the fourth bending groove, and the third connecting part, the first bending part, the second bending part and the fourth bending part are sequentially connected and can be clamped into the bending limiting groove.
In any of the above technical solutions, preferably, the number of the fourth limiting portions is two, and the two fourth limiting portions are symmetrically disposed on two sides of the first limiting portion, and form two third limiting grooves and two fourth curved grooves with respect to the first limiting portion, with the second limiting portion and the third limiting portion.
In any of the above technical solutions, preferably, a fifth bending portion and an extending portion sequentially connected to the third connecting portion are further formed on the force limiting wire;
The fifth bending part can extend to one side of the protruding limiting part, which is away from the torsion piece, and the extending part extends in a spiral shape on the end face of the mandrel body, so that when the mandrel rotates along the first direction relative to the shaft head, the protruding limiting part can abut against the fifth bending part and push the fifth bending part and the extending part to wind on the outer wall of the torsion head.
In any of the above technical solutions, preferably, a protruding portion is formed on a side of the second limiting portion and/or the third limiting portion, which faces the shaft head, and a groove adapted to the protruding portion is formed on the shaft head, so that the protruding portion can be clamped in the groove.
The application also provides a safety belt retractor, which comprises the mandrel assembly in any technical scheme.
Compared with the prior art, the invention has the beneficial effects that:
the spindle assembly is provided with the curved limit groove on the torsion member, one end of the force limiting wire is clamped in the curved limit groove, and when the force limiting wire is stressed, the curved limit groove can increase the friction force with the force limiting wire, so that one end of the force limiting wire clamped in the curved limit groove is prevented from being separated from the curved limit groove. Compared with the structure that the force limiting wire is clamped and connected through the linear groove in the prior art, the linear groove is required to be extended out of both ends of the force limiting wire to ensure that the force limiting wire in the groove cannot be pulled out, the novel force limiting wire clamping mode is provided, stability of one end of the force limiting wire on a torsion head is ensured, meanwhile, the force limiting wire can be enabled to extend in a single direction on the mandrel, and therefore the secondary force limiting stroke is improved.
The seatbelt retractor of the present application includes the spindle assembly, and thus also has an effect of being able to improve the secondary force limiting stroke.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a mandrel assembly according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a spindle head of a spindle assembly according to an embodiment of the present invention;
FIG. 3 is a schematic view of a torque head of a mandrel assembly according to an embodiment of the present invention;
FIG. 4 is a schematic view of a force limiting wire of a mandrel assembly according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an assembly structure of a torque limiting wire and a torsion member of a mandrel assembly according to an embodiment of the present invention;
fig. 6 is a schematic diagram of an assembly structure of a torque limiting wire and torsion member and a mandrel of a mandrel assembly according to an embodiment of the present invention.
Reference numerals:
1-mandrel, 11-protruding limit part, 2-torsion member, 21-torsion bar, 22-torsion head, 221-first limit part, 222-second limit part, 223-third limit part, 224-fourth limit part, 225-first curved groove, 226-second curved groove, 227-third limit groove, 228-fourth curved groove, 229-protruding part, 3-force limiting wire, 31-first bending part, 32-second bending part, 33-third connecting part, 34-fourth bending part, 35-fifth bending part, 36-extending part, 4-spindle nose, 41-groove.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown.
The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
A spindle assembly and a seatbelt retractor including the same according to some embodiments of the present invention will be described below with reference to fig. 1 to 6.
Referring to fig. 1 to 6, an embodiment of the present application provides a spindle assembly including a spindle 1, a torsion member 2, a force limiting wire 3 and a spindle head 4, wherein the spindle 1 is used for winding a safety belt, and one end of the torsion member 2 is located in the spindle 1 and is in spline connection with one end of the spindle 1 so that one end of the torsion member 2 can rotate together with the spindle 1; the other end of the torsion member 2 extends out of the mandrel 1 and is clamped with the shaft head 4. When the safety belt on the mandrel 1 is normally pulled, the mandrel 1, the torsion member 2 and the mandrel head 4 synchronously rotate, when collision occurs, the pre-tightening mechanism of the retractor starts to work, so that the mandrel head 4 stops rotating, and under the action of human body inertia, the human body can continuously drive the safety belt to be pulled out for a certain length, the mandrel 1 continues to rotate in the process, but the torsion member 2 connected between the mandrel head 4 and the mandrel 1 is twisted due to unbalanced stress at two ends, and the torsion member 2 is a rigid piece generally, so that the force limiting effect can be generated on the mandrel 1 in the twisting process, and the process is the primary force limiting of the mandrel assembly.
Preferably, referring to fig. 5, the torsion member 2 includes a torsion head 22 and a torsion bar 21, the torsion bar 21 is located in the mandrel 1, the torsion head 22 is located between the mandrel 1 and the spindle head 4, one end of the torsion bar 21 is connected with the mandrel 1 through a spline, the other end of the torsion bar 21 is connected with one end of the torsion head 22 through a spline, and the other end of the torsion head 22 is clamped with the spindle head 4.
In addition, referring to fig. 5 and 6, a curved limiting groove is formed on an end surface of the torsion head 22 facing one end of the spindle head 4, one end of the force limiting wire 3 is clamped in the Qu Xing limiting groove, the other end of the force limiting wire 3 extends to the end surface of the spindle 1 corresponding to the torsion head 22, a protruding limiting portion 11 is arranged on the end surface of the spindle 1, the force limiting wire 3 can bypass the protruding limiting portion 11 and extend on the end surface of the spindle 1 along a first direction, wherein the first direction is clockwise or anticlockwise, and particularly, the direction opposite to the rotation direction of the spindle 1 when the safety belt is pulled out. When collision occurs, in the process that the mandrel 1 is stressed and rotates along the second direction (the opposite direction of the first direction) relative to the shaft head 4, one part of the force limiting wire 3 is clamped in the curved limiting groove, the other part of the force limiting wire 3 can be abutted against the convex limiting part 11 and wound between the torsion member 2 and the convex limiting part 11 along the second direction, and in the process, the deformation force of the force limiting wire 3 is overcome by the rotation of the mandrel 1, so that the rotation of the mandrel 1 can be limited by the winding process of the force limiting wire 3, the mandrel 1 is prevented from rotating rapidly, and the safety belt can not be pulled out continuously and rapidly. Because the rotation of the mandrel 1 overcomes the deformation force of the force limiting wire 3 in the process, the mandrel assembly is a secondary force limiting process.
According to the application, the force limiting wire 3 is wound on the mandrel 1 in a unidirectional manner, and the force limiting wire 3 is pushed through the protruding limiting part 11, so that the force limiting stroke of the force limiting wire 3 can be changed by changing the winding length of the force limiting wire 3, namely, the time of secondary force limitation is longer, and different force limiting requirements are met; preferably, the force limiting wire 3 is spirally wound on the end surface of the mandrel 1, and the central angle formed by the force limiting wire is 360 degrees, namely, one circle is formed on the end surface of the mandrel 1, and of course, in order to further increase the force limiting stroke, the central angle of the force limiting wire 3 winding can be larger than 360 degrees.
In addition, because the rotation of the mandrel 1 can bring a great pushing force to the force limiting wire 3 in the secondary force limiting process of the mandrel assembly, the force limiting wire 3 clamped on the torsion head 22 can be pulled away from the torsion head 22, so that the secondary force limiting effect is affected. Compared with the structure that the force limiting wire 3 is clamped and connected through the linear groove in the prior art, and meanwhile, the two ends of the force limiting wire are required to extend out of the linear groove to ensure that the force limiting wire in the groove cannot be pulled out, the novel force limiting wire clamping method provided by the application ensures the stability of one end of the force limiting wire 3 on the torsion head 22, and simultaneously enables the force limiting wire 3 to extend in one direction on the mandrel 1, so that the secondary force limiting stroke is improved.
Next, a structure of a curved limit groove on the torsion head 22 according to an embodiment of the present application is specifically described, and as shown in fig. 3 to 6, a first limit portion 221, a second limit portion 222, and a third limit portion 223 are formed on the torsion head 22; a first curved groove 225 is formed between the first limiting part 221 and the second limiting part 222, a second curved groove 226 is formed between the first limiting part 221 and the third limiting part 223, the second limiting part 222 and the third limiting part 223 are positioned at two sides of the first limiting part 221, and the first limiting part 221 is cylindrical, so that the first curved groove 225 and the second curved groove 226 are communicated and form an annular limiting groove; the force limiting wire 3 is formed with a first bending part 31 matched with the first curved groove 225 and a second bending part 32 matched with the second curved groove 226, so that a part of the force limiting wire 3 can be clamped into the annular limiting groove. Preferably, the part of the force limiting wire 3 is also bent to be annular and is clamped in the annular limiting groove, so that the friction force between the force limiting wire 3 and the limiting groove in the secondary force limiting process is increased.
In addition, as shown in fig. 3 to 6, in order to further increase the clamping effect of the curved limit groove on the force limiting wire 3, in the embodiment of the present application, a fourth limit portion 224 is further disposed between the second limit portion 222 and the third limit portion 223, a third limit groove 227 is formed between the fourth limit portion 224 and the second limit portion 222, and a fourth curved groove 228 is formed between the fourth limit portion 224 and the third limit portion 223; the third limiting groove 227, the first curved groove 225, the second curved groove 226 and the fourth curved groove 228 are sequentially communicated to form a curved limiting groove. The force limiting wire 3 is provided with a third connecting part 33 matched with the third limiting groove 227 and a fourth bending part 34 matched with the fourth bending groove 228, and the third connecting part 33, the first bending part 31, the second bending part 32 and the fourth bending part 34 are sequentially connected and can be clamped into the bending limiting groove. Preferably, the bending direction of the fourth curved groove 228 is opposite to the bending direction of the second curved groove 226, so as to further increase the friction force of the curved limit groove to the force limiting wire 3. In addition, the third limiting groove 227 communicates the first curved groove 225 with the end surface of the mandrel 1, that is, the third connecting portion 33 of the corresponding force limiting wire 3 connects the first curved portion 31 and the end of the force limiting wire 3 extending to the end surface of the mandrel 1, so the third connecting portion 33 may be curved or linear.
In addition, as shown in fig. 3 to 6, in order to improve the applicability of the mandrel assembly according to the embodiment of the present application, the number of the fourth limiting portions 224 is two, the two fourth limiting portions 224 are symmetrically disposed at two sides of the first limiting portion 221, and form two third limiting grooves 227 and two fourth curved grooves 228 symmetrical with respect to the first limiting portion 221 with the second limiting portion 222 and the third limiting portion 223, so that two mounting positions with opposite directions are formed on the torque head 22, that is, the first curved groove 225, the second curved groove 226 and the third limiting groove 227 and the fourth curved groove 228 on one side thereof form a first mounting position, and one end of the force limiting wire 3 can be clamped on the first mounting position, so that the other end of the force limiting wire 3 can extend on the end face of the mandrel 1 along the first direction; the first curved groove 225, the second curved groove 226 and the third limiting groove 227 and the fourth curved groove 228 on the other side of the first curved groove and the second curved groove form a second installation position, and one end of the force limiting wire 3 can be clamped on the second installation position, so that the other end of the force limiting wire 3 can extend on the end face of the mandrel 1 along the second direction. Through setting up two installation positions, can satisfy limit force silk 3 to the limit force demand of different directions.
Since the number of the protruding limiting portions 11 on the end face of the mandrel 1 is one, the protruding limiting portions 11 can simultaneously satisfy the effects on the two mounting directions of the force limiting wire 3. And preferably, in order to improve the stability of the protrusion limiting portion 11 pushing the force limiting wire 3, an arc pushing surface is formed at the end portion of the protrusion limiting portion 11 abutting against the force limiting wire 3, and a bending portion adapted to the arc pushing surface, namely, a fifth bending portion 35 in the following scheme is formed on the corresponding force limiting wire 3.
Specifically, as shown in fig. 4, the force limiting wire 3 is further formed with a fifth bending portion 35 and an extending portion 36 sequentially connected with the third connecting portion 33;
The fifth bending portion 35 can extend to one side of the protruding limiting portion 11, which faces away from the torsion member, and the extending portion 36 extends in a spiral shape on the end face of the mandrel 1, so that when the mandrel 1 rotates relative to the shaft head 4 along the first direction, the protruding limiting portion 11 can abut against the fifth bending portion 35, and the fifth bending portion 35 and the extending portion 36 are pushed to be wound on the outer wall of the torsion head 22.
In addition, as shown in fig. 2, 3, 5 and 6, in order to improve the stability of the locking of the torsion member 2 and the spindle head 4, a protrusion 229 is formed on a side of the second limiting portion 222 and/or the third limiting portion 223 of the torsion head 22 facing the spindle head 4, and a groove 41 adapted to the protrusion 229 is formed on the spindle head 4, so that the protrusion 229 can be locked in the groove 41, thereby realizing the connection between the torsion member 2 and the spindle head 4. Preferably, the protrusions 229 on the torque head 22 are an interference fit with the grooves 41 on the stub shaft 4.
The application also provides a safety belt retractor, which comprises the mandrel assembly of the embodiment. Since the seatbelt retractor includes the spindle assembly, it has all the advantageous effects of the spindle assembly, which will not be described in detail herein.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (5)
1. A mandrel assembly for a seatbelt retractor, comprising a mandrel, a torsion member, a force limiting wire and a shaft head;
The first end of the torsion member is positioned in the mandrel and connected with the mandrel; the second end of the torsion member protrudes out of the end face of the mandrel and is connected with the shaft head;
A curved limiting groove is formed at the second end of the torsion member, and a convex limiting part is formed on the corresponding end surface of the mandrel; a part of the force limiting wire is positioned in the curved limiting groove and is matched with the shape of the curved limiting groove; the other part of the force limiting wire can bypass the convex limiting part and extend along a first direction on the end face of the mandrel; in the process that the mandrel is stressed to rotate along a second direction relative to the shaft head, one part of the force limiting wire can be clamped in the curved limiting groove, and the other part of the force limiting wire can be abutted against the convex limiting part and wound between the torsion member and the convex limiting part along the second direction;
the number of the protruding limiting parts on the end face of the mandrel is one, and the extending part of the force limiting wire on the end face of the mandrel is spiral;
the torsion member includes a torsion bar and a torsion head;
The torsion bar is positioned in the mandrel, and one end of the torsion bar is in spline connection with the mandrel; the other end of the torsion bar is connected with the torsion head spline;
One end of the torsion head is provided with the curved limit groove;
a first limiting part, a second limiting part and a third limiting part are formed on the torsion head;
A first curved groove is formed between the first limiting part and the second limiting part, a second curved groove is formed between the first limiting part and the third limiting part, and the first curved groove is communicated with the second curved groove and forms the curved limiting groove;
the force limiting wire is provided with a first bending part matched with the first curved groove and a second bending part matched with the second curved groove, so that a part of the force limiting wire can be clamped into the curved limiting groove;
the second limiting part and the third limiting part are respectively positioned at two sides of the first limiting part, and the first limiting part is cylindrical so that the first curved groove and the second curved groove form an annular curved limiting groove;
A fourth limiting part is further arranged between the second limiting part and the third limiting part, a third limiting groove is formed between the fourth limiting part and the second limiting part, and a fourth curved groove is formed between the fourth limiting part and the third limiting part; the third limit groove, the first curved groove, the second curved groove and the fourth curved groove are sequentially communicated to form the curved limit groove;
The force limiting wire is provided with a third connecting part matched with the third limiting groove and a fourth bending part matched with the fourth bending groove, and the third connecting part, the first bending part, the second bending part and the fourth bending part are sequentially connected and can be clamped into the bending limiting groove.
2. The mandrel assembly of claim 1, wherein the number of the fourth limiting portions is two, the two fourth limiting portions are symmetrically disposed on two sides of the first limiting portion, and two third limiting grooves and two fourth curved grooves which are symmetrical with respect to the first limiting portion are formed with the second limiting portion and the third limiting portion.
3. The mandrel assembly of claim 2, wherein the force limiting wire further has a fifth bend and extension formed thereon that is sequentially connected to the third connection portion;
The fifth bending part can extend to one side of the protruding limiting part, which is away from the torsion member, and the extending part extends in a spiral shape on the end surface of the mandrel body, so that when the mandrel rotates along the first direction relative to the shaft head, the protruding limiting part can abut against the fifth bending part and push the fifth bending part and the extending part to wind on the outer wall of the torsion head.
4. A mandrel assembly according to any one of claims 1 to 3, wherein the second and/or third stop portions are formed with a projection on a side thereof facing the shaft head, and a recess is formed in the shaft head to accommodate the projection so that the projection can be engaged in the recess.
5. A seatbelt retractor comprising a spindle assembly according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910982245.1A CN110562190B (en) | 2019-10-16 | 2019-10-16 | Mandrel assembly and safety belt retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910982245.1A CN110562190B (en) | 2019-10-16 | 2019-10-16 | Mandrel assembly and safety belt retractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110562190A CN110562190A (en) | 2019-12-13 |
| CN110562190B true CN110562190B (en) | 2024-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910982245.1A Active CN110562190B (en) | 2019-10-16 | 2019-10-16 | Mandrel assembly and safety belt retractor |
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| Country | Link |
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| CN (1) | CN110562190B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011087413A1 (en) * | 2011-11-30 | 2013-06-06 | Autoliv Development Ab | Belt retractor with two parallel force limiting devices |
| CN109278698A (en) * | 2018-12-04 | 2019-01-29 | 沈阳金杯锦恒汽车安全系统有限公司 | A kind of coiler mandrel component and seat belt retractor |
| CN109278699A (en) * | 2018-12-04 | 2019-01-29 | 沈阳金杯锦恒汽车安全系统有限公司 | A kind of coiler mandrel component and seat belt retractor |
| CN211001239U (en) * | 2019-10-16 | 2020-07-14 | 沈阳金杯锦恒汽车安全系统有限公司 | Dabber subassembly and safety belt coiler |
-
2019
- 2019-10-16 CN CN201910982245.1A patent/CN110562190B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011087413A1 (en) * | 2011-11-30 | 2013-06-06 | Autoliv Development Ab | Belt retractor with two parallel force limiting devices |
| CN109278698A (en) * | 2018-12-04 | 2019-01-29 | 沈阳金杯锦恒汽车安全系统有限公司 | A kind of coiler mandrel component and seat belt retractor |
| CN109278699A (en) * | 2018-12-04 | 2019-01-29 | 沈阳金杯锦恒汽车安全系统有限公司 | A kind of coiler mandrel component and seat belt retractor |
| CN211001239U (en) * | 2019-10-16 | 2020-07-14 | 沈阳金杯锦恒汽车安全系统有限公司 | Dabber subassembly and safety belt coiler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110562190A (en) | 2019-12-13 |
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