CN110562190A - Dabber subassembly and safety belt coiler - Google Patents
Dabber subassembly and safety belt coiler Download PDFInfo
- Publication number
- CN110562190A CN110562190A CN201910982245.1A CN201910982245A CN110562190A CN 110562190 A CN110562190 A CN 110562190A CN 201910982245 A CN201910982245 A CN 201910982245A CN 110562190 A CN110562190 A CN 110562190A
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- limiting
- mandrel
- groove
- curved
- force
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- 230000000670 limiting effect Effects 0.000 claims abstract description 232
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000020347 spindle assembly Effects 0.000 claims abstract description 12
- 238000005452 bending Methods 0.000 claims description 31
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004804 winding Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000452 restraining effect 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 core shaft assembly and a safety belt retractor. The mandrel component comprises a mandrel, a torsion member, a force limiting wire and a mandrel head; a curved limiting groove is formed on the torsion member, and a convex limiting 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 to rotate relative to the mandrel head along the second direction, 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 to the protruding limiting part and wound between the torsion member and the protruding limiting part along the second direction, and force limiting is provided for rotation of the mandrel in the process. The application provides a new force limiting wire clamping mode for the mandrel assembly, and the secondary force limiting stroke of the mandrel assembly is improved. The safety belt retractor comprises the spindle assembly, and therefore the safety belt retractor also has the effect of being capable of improving the secondary force limiting stroke.
Description
Technical Field
The invention relates to the technical field of safety belts, in particular to a core shaft assembly and a safety belt retractor.
Background
When people wear the safety belt to drive or ride the vehicle, if the vehicle has a collision accident, the safety belt pretensioner can lock the safety belt retractor to prevent the safety belt from being pulled out, so that the safety belt retractor has the function of protecting the human body. But under the action of the inertia of a human body, the spindle of the safety belt retractor still can be stressed to rotate. In order to limit the continuous rotation of the mandrel, a torsion piece is arranged in the mandrel and matched with a force limiting wire to carry out secondary force limiting on the rotation of the mandrel in the prior art, but the secondary force limiting stroke of the force limiting wire needs to be improved.
disclosure of Invention
The application aims to provide a spindle assembly and a safety belt retractor so as to improve the secondary force limiting stroke of a force limiting wire to the spindle to a certain extent.
The application provides a mandrel component for a safety belt retractor, which comprises a mandrel, a torsion member, a force limiting wire and a mandrel 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 surface of the mandrel and is connected with the shaft head;
A curved limiting groove is formed on the second end of the torsion member, and a convex limiting part is formed on the end surface of the corresponding mandrel; one part of the force limiting wire is positioned in the curved limiting groove and is matched with the curved limiting groove in shape; another part of the force limiting wire can bypass the convex limiting part and extend along the first direction on the end face of the mandrel; in the process that the mandrel is stressed to rotate relative to the shaft head along the second direction, 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 surface of the mandrel is one, and the extending portion of the force limiting wire on the end surface of the mandrel is spiral.
in any one of the above technical solutions, 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 splined connection with the mandrel; the other end of the torsion bar is in splined connection with the torsion head;
one end of the torque head is formed with the curved limiting groove.
in any one of the above technical solutions, preferably, a first limiting portion, a second limiting portion and a third limiting portion are formed on the torque 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 to form the curved limiting groove;
And a first bending part matched with the first curved groove and a second bending part matched with the second curved groove are formed on the force limiting wire, so that 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 disposed 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 limiting groove, the first curved groove, the second curved groove and the fourth curved groove are communicated in sequence to form the curved limiting groove;
the force limiting wire is provided with a third connecting portion and a fourth bending portion, the third connecting portion is matched with the third limiting groove, the fourth bending portion is matched with the fourth curved groove, and the third connecting portion, the first bending portion, the second bending portion and the fourth bending portion are sequentially connected and can be clamped in the curved limiting groove.
In any of the above technical solutions, preferably, the number of the fourth limiting portions is two, two of the fourth limiting portions are symmetrically disposed on two sides of the first limiting portion, and form two of the third limiting grooves and two of the fourth curved grooves, which are symmetrical 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, the force limiting wire is further formed with a fifth bending portion and an extending portion sequentially connected to the third connecting portion;
The fifth bending part can extend to the protruding limiting part deviates from one side of the torsion piece, the extending part is in spiral extending on the end face of the mandrel body, so that the mandrel can be opposite to the shaft head in the first direction, the protruding limiting part can be abutted to the fifth bending part, and the fifth bending part and the extending part are wound on the outer wall of the torsion head in a pushing mode.
In any one of the above technical solutions, preferably, a protruding portion is formed on one side of the second limiting portion and/or the third limiting portion facing the spindle head, and a groove matched with the protruding portion is formed on the spindle head, so that the protruding portion can be clamped in the groove.
the application also provides a safety belt retractor, which comprises the spindle assembly in any technical scheme.
compared with the prior art, the invention has the beneficial effects that:
The utility model provides a dabber subassembly is provided with bent shape spacing groove on torsion member, and the one end jamming of power limiting wire is in bent shape power limiting groove, and when the power limiting wire was in the atress, bent shape power limiting groove can increase with the frictional force of power limiting wire to prevent that the power limiting wire jamming from breaking away from bent shape power limiting groove in the one end in bent shape power limiting groove. Compare and come joint limit force silk through sharp linear form recess with the limit force silk among the prior art, the both ends of limit force silk all need extend the structure that the linear form recess can not be taken out with the limit force silk of guaranteeing in the recess simultaneously, this application provides a new limit force silk joint mode, and has guaranteed the stability of the one end of limit force silk at the torque head, can make the limit force silk extend in spindle folk prescription simultaneously to the second grade limit force stroke has been improved.
The safety belt retractor comprises the spindle assembly, and therefore the safety belt retractor also has the effect of being capable of improving 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 used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of a mandrel assembly according to an embodiment of the present invention;
FIG. 2 is a schematic view of a spindle head of a spindle assembly according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a torque head of a spindle assembly provided in accordance with an embodiment of the present invention;
FIG. 4 is a schematic structural view of a force limiting wire of a mandrel assembly provided in accordance with an embodiment of the present invention;
FIG. 5 is a schematic view of an assembly structure of a force limiting wire and a torsion member of the spindle assembly according to an embodiment of the present invention;
Fig. 6 is a schematic view of an assembly structure of a force limiting wire, a torsion member and a mandrel of the mandrel assembly provided by the embodiment of the invention.
Reference numerals:
1-mandrel, 11-bump stop, 2-torsion member, 21-torsion bar, 22-torsion head, 221-first stop, 222-second stop, 223-third stop, 224-fourth stop, 225-first curved groove, 226-second curved groove, 227-third stop, 228-fourth curved groove, 229-bump, 3-wire, 31-first bend, 32-second bend, 33-third joint, 34-fourth bend, 35-fifth bend, 36-extension, 4-mandrel, 41-groove.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.
The components of 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 present invention, 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular 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 otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A spindle assembly and a seatbelt retractor including the same according to some embodiments of the present invention will be described 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 splined 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, the mandrel head 4 stops rotating, and under the action of human body inertia, a human body can continuously drive the safety belt to be drawn out for a certain length, the mandrel 1 continuously rotates in the process, but the mandrel head 4 is fixed, so 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 generally a rigid part, so the torsion process can generate a force limiting effect on the mandrel 1, and the process is a first-level force limiting effect 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 spindle 1, the torsion head 22 is located between the spindle 1 and the spindle head 4, one end of the torsion bar 21 is connected to the spindle 1 through a spline, the other end of the torsion bar 21 is connected to one end of the torsion head 22 through a spline, and the other end of the torsion head 22 is engaged with the spindle head 4.
In addition, as shown in fig. 5 and fig. 6, a curved limiting groove is formed on an end surface of one end of the torque head 22 facing the spindle head 4, one end of the force limiting wire 3 is clamped in the curved limiting groove, the other end of the force limiting wire 3 extends to an end surface of the spindle 1 corresponding to the torque head 22, a protruding limiting portion 11 is arranged on the end surface of the spindle 1, and 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 counterclockwise, and specifically is an opposite direction of a rotation direction of the spindle 1 when the safety belt is extracted. When collision occurs, in the process that the spindle 1 is stressed to rotate relative to the spindle head 4 along the second direction (the direction opposite to the first direction), 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 to the protruding limiting part 11 and is wound between the torsion member 2 and the protruding limiting part 11 along the second direction, the deformation force of the force limiting wire 3 is overcome by the rotation of the spindle 1 in the process, therefore, the winding process of the force limiting wire 3 can provide limiting force for the rotation of the spindle 1, the spindle 1 is prevented from rotating rapidly, and the safety belt cannot be continuously and rapidly drawn out. Therefore, the rotation of the mandrel 1 in the process is to overcome the deformation force of the force limiting wire 3, so that the secondary force limiting process of the mandrel assembly is realized.
The force limiting wire 3 is wound on the mandrel 1 in a one-way mode, 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, the time of secondary force limiting 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 formed central angle is 360 degrees, that is, a circle is formed on the end surface of the mandrel 1, and of course, to further increase the force limiting stroke, the central angle of the winding of the force limiting wire 3 may be larger than 360 degrees.
in addition, because the great driving force of limit force silk 3 can be taken to the rotation of the second grade limit force in-process dabber 1 of dabber subassembly, consequently, the limit force silk 3 of stagnation on torque head 22 can be taken out from torque head 22, thereby influence second grade limit force effect, take place for avoiding this kind of condition, this application is provided with curved shape spacing groove on torque head 22, the one end card of limit force silk 3 is stagnated in curved shape limit force inslot, and when limit force silk 3 was atress, curved shape limit force groove can increase with limit force silk 3's frictional force, thereby prevent that limit force silk 3 card from being stagnated in curved shape limit force groove's one end and breaking away from curved shape limit force groove. Compare and come joint limit force silk through sharp linear form recess with limit force silk 3 among the prior art, the both ends of limit force silk all need extend the structure that the linear form recess can not be taken out with the limit force silk of guaranteeing in the recess simultaneously, this application provides a new limit force silk joint mode, and guaranteed the stability of the one end of limit force silk 3 at torsion head 22, can make limit force silk 3 unilateral extend on dabber 1 simultaneously to the second grade limit force stroke has been improved.
referring to fig. 3 to 6, the structure of the curved limiting groove on the torque head 22 according to the embodiment of the present disclosure is specifically described below, and a first limiting portion 221, a second limiting portion 222, and a third limiting portion 223 are formed on the torque 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 is communicated with the second curved groove 226 to form an annular limiting groove; the force limiting wire 3 is formed with a first curved portion 31 fitted to the first curved groove 225 and a second curved portion 32 fitted to the second curved groove 226 so that a portion of the force limiting wire 3 can be engaged into the annular restraining groove. Preferably, the force limiting wire 3 is also bent to form a ring shape, and is clamped in the ring-shaped limiting groove to increase the friction force between the force limiting wire 3 and the limiting groove in the secondary force limiting process.
In addition, referring to fig. 3 to 6, in order to further increase the clamping effect of the curved limiting groove on the force limiting wire 3, in the embodiment of the present application, a fourth limiting portion 224 is further disposed between the second limiting portion 222 and the third limiting portion 223, a third limiting groove 227 is formed between the fourth limiting portion 224 and the second limiting portion 222, and a fourth curved groove 228 is formed between the fourth limiting portion 224 and the third limiting portion 223; the third stopper 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 stopper groove. The force limiting wire 3 is formed with a third connecting portion 33 adapted to the third limiting groove 227 and a fourth bending portion 34 adapted to the fourth curved groove 228, and the third connecting portion 33, the first bending portion 31, the second bending portion 32 and the fourth bending portion 34 are connected in sequence and can be clamped into the curved limiting groove. Preferably, the fourth curved groove 228 is bent in a direction opposite to the second curved groove 226 to further increase the friction of the curved stopper groove against the force limiting wire 3. In addition, since the third stopper 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 one end of the force limiting wire 3 extending to the end surface of the mandrel 1, the third connecting portion 33 may be curved or linear.
in addition, referring to 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 on two sides of the first limiting portion 221, and form two third limiting grooves 227 and two fourth curved grooves 228 that are 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, 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 surface of the mandrel 1 along the first direction; the first curved groove 225, the second curved groove 226, the third limit groove 227 and the fourth curved groove 228 on the other side of the first 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 the power limit demand of limit silk 3 to equidirectional limit.
it should be noted that, because the number of the protruding limiting portions 11 on the end surface of the mandrel 1 is one, the protruding limiting portions 11 can simultaneously satisfy the effect on the two mounting directions of the force limiting wire 3. And preferably, in order to improve the stability of the protruding limiting part 11 pushing the force limiting wire 3, an arc pushing surface is formed at the end of the protruding limiting part 11 abutting against the force limiting wire 3, and a bending part adapted to the arc pushing surface, that is, a fifth bending part 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 which are sequentially connected to the third connecting portion 33;
The fifth bending part 35 can extend to a side of the protruding limiting part 11 departing from the torsion member, and the extending part 36 extends spirally on the end surface of the mandrel 1, so that when the mandrel 1 rotates relative to the shaft head 4 along the first direction, the protruding limiting part 11 can abut against the fifth bending part 35, and the fifth bending part 35 and the extending part 36 are pushed to wind 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 torsion member 2 in clamping with the stub shafts 4, a protrusion 229 is formed on one side of the second limiting portion 222 and/or the third limiting portion 223 of the torsion head 22 facing the stub shafts 4, and a groove 41 matched with the protrusion 229 is formed on the stub shafts 4, so that the protrusion 229 can be clamped in the groove 41, thereby realizing the connection between the torsion member 2 and the stub shafts 4. Preferably, the protrusions 229 on the torque head 22 are an interference fit with the recesses 41 on the stub shafts 4.
The application also provides a seat belt retractor comprising the spindle assembly of the above embodiment. Because the safety belt retractor includes the dabber subassembly, therefore have the whole beneficial effect of dabber subassembly, no longer give unnecessary details here.
finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A spindle assembly for a safety belt retractor is characterized by comprising a spindle, a torsion member, a force limiting wire and a spindle 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 surface of the mandrel and is connected with the shaft head;
a curved limiting groove is formed on the second end of the torsion member, and a convex limiting part is formed on the end surface of the corresponding mandrel; one part of the force limiting wire is positioned in the curved limiting groove and is matched with the curved limiting groove in shape; another part of the force limiting wire can bypass the convex limiting part and extend along the first direction on the end face of the mandrel; in the process that the mandrel is stressed to rotate relative to the shaft head along the second direction, 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.
2. the mandrel assembly of claim 1 wherein said number of raised limit portions on said end surface of said mandrel is one, and said extension of said force limiting wire on said end surface of said mandrel is helical.
3. The mandrel assembly of claim 2 wherein said torque member comprises a torque rod and a torque head;
the torsion bar is positioned in the mandrel, and one end of the torsion bar is in splined connection with the mandrel; the other end of the torsion bar is in splined connection with the torsion head;
One end of the torque head is formed with the curved limiting groove.
4. The mandrel assembly of claim 3 wherein said torque head has a first stop portion, a second stop portion and a third stop portion formed thereon;
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 to form the curved limiting groove;
And a first bending part matched with the first curved groove and a second bending part matched with the second curved groove are formed on the force limiting wire, so that part of the force limiting wire can be clamped into the curved limiting groove.
5. The mandrel assembly of claim 4 wherein said second and third stops are located on opposite sides of said first stop, said first stop being cylindrical so that said first and second curved grooves define said annular curved stop.
6. the mandrel assembly of claim 5, wherein a fourth limiting portion is disposed 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 limiting groove, the first curved groove, the second curved groove and the fourth curved groove are communicated in sequence to form the curved limiting groove;
The force limiting wire is provided with a third connecting portion and a fourth bending portion, the third connecting portion is matched with the third limiting groove, the fourth bending portion is matched with the fourth curved groove, and the third connecting portion, the first bending portion, the second bending portion and the fourth bending portion are sequentially connected and can be clamped in the curved limiting groove.
7. The mandrel assembly of claim 6 wherein said number of said fourth limiting portions is two, two of said fourth limiting portions are symmetrically disposed on both sides of said first limiting portion, and form two of said third limiting grooves and two of said fourth curved grooves with said second limiting portion and said third limiting portion, which are symmetrical about said first limiting portion.
8. The mandrel assembly of claim 7 wherein said force limiting wire further defines a fifth bend and extension that are sequentially connected to said third connecting portion;
the fifth bending part can extend to the protruding limiting part deviates from one side of the torsion piece, the extending part is in spiral extending on the end face of the mandrel body, so that the mandrel can be opposite to the shaft head in the first direction, the protruding limiting part can be abutted to the fifth bending part, and the fifth bending part and the extending part are wound on the outer wall of the torsion head in a pushing mode.
9. The mandrel assembly according to any one of claims 4 to 8, wherein a protruding portion is formed on one side of the second limiting portion and/or the third limiting portion facing the shaft head, and a groove matched with the protruding portion is formed on the shaft head, so that the protruding portion can be clamped in the groove.
10. A seat belt retractor comprising a spindle assembly as claimed in any one of claims 1 to 9.
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 true CN110562190A (en) | 2019-12-13 |
| CN110562190B 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN110562190B (en) | 2024-05-17 |
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