CN111688630A

CN111688630A - Angle modulation disc assembly for safety belt retractor and safety belt retractor

Info

Publication number: CN111688630A
Application number: CN202010684729.0A
Authority: CN
Inventors: 王飞; 汤丹; 黄永亮
Original assignee: Yanfeng Automotive Safety Systems Co Ltd
Current assignee: Yanfeng Automotive Safety Systems Co Ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2020-09-22
Also published as: WO2022012448A1

Abstract

The invention relates to a recliner assembly for a seat belt retractor, which is designed for adjusting the angle of positioning of a vehicle sensing device, comprising a housing, which is designed for a pivotal drive connection to a backrest of a vehicle seat, and a recliner plate, which is received in the housing and can be rotated relative to the housing, having a core attachment. The recliner plate has a long diameter portion and a short diameter portion, the short diameter portion having a core winding portion extending from the core fixing portion in a first rotational direction, wherein the core is windable on the core winding portion upon rotation of the housing relative to the recliner plate in the first rotational direction, wherein the first rotational direction corresponds to a backrest recline angle adjustment direction. The invention also relates to a seat belt retractor comprising such a recliner assembly. The angle adjusting disc component is compact in structure, small in number of parts and convenient to mount.

Description

Angle modulation disc assembly for safety belt retractor and safety belt retractor

Technical Field

The present disclosure relates to the field of vehicle safety technology, and more particularly, to a recliner assembly for a seat belt retractor and a seat belt retractor including such a recliner assembly.

Background

In the field of vehicle safety technology, a vehicle seat belt may be a safety protection device for protecting an occupant in the event of an emergency situation of the vehicle, such as an emergency brake, a collision or a rollover, wherein the occupant may be restrained by a belt-shaped webbing, which may be retracted by a spindle of a seat belt retractor and may be fixed to the vehicle by a tongue. Vehicle safety belts can be an important component in vehicle passive safety systems. The vehicle may be, for example, a passenger car, a truck, or other vehicle.

With the development of vehicle technology, the demands of users on vehicle comfort are higher and higher, and the demands on the comfort of vehicle seats are the same. In the development of vehicle seats, the inclination of the seat back has evolved from fixed to adjustable, and the angle of adjustability is becoming greater and greater. In some commercial vehicles, even near-full-flat reclining of the seat back has been achieved.

Some known seatbelt retractors are equipped with a vehicle sensing device that can sense a vehicle state as a mechanical sensor in the seatbelt retractor, for example, can sense an acceleration and a tilt angle of the vehicle, wherein when an emergency occurs in the vehicle, the vehicle sensing device can sense the emergency and can cause a spindle of the seatbelt retractor to lock, preventing the webbing from continuing to be withdrawn from the spindle, so that the occupant can be well restrained by the webbing and thus obtain good safety protection. Typically, earlier vehicle sensing devices were fixedly mounted to the vehicle body or vehicle seat, which may not meet seat back adjustability specifications.

Adaptive vehicle-feel devices are also known which can adjust with the seat back by their own weight. Since the adaptive car-feel device is movable, the adaptive angle adjustment range thereof is limited, and there is room for improvement in car-feel sensitivity. As regards the vehicle-sensing device and the locking device, reference is made, for example, to patent application CN110027502A by the present applicant.

Furthermore, from patent document CN102991452B, a recliner assembly for a vehicle occupant sensing device is known, which has a recliner disc having a long diameter portion and a short diameter portion, a flat portion is formed at the junction of the long diameter portion and the short diameter portion, the flat portion is used for mounting a core wire take-up mechanism, the end of the core wire is fixed to the short diameter portion and extends to the long diameter portion through the flat portion, wherein the core wire can be wound along the outer edge of the long diameter portion. During the assembly of the core wire, the core wire needs to be wound around the long diameter portion of the dial, cut into the long diameter portion of the recliner housing, and then drawn out. In the assembly process of the core wire, the core wire is always in close fit, so that the assembly difficulty of the core wire is higher. The whole angle modulation disc layout is not compact enough, and the overall dimension is large, which is inconvenient for customers to install and match.

Disclosure of Invention

The invention aims to provide a recliner plate assembly for a seat belt retractor, which has a compact structure, a small number of parts and is convenient to install.

According to a first aspect of the present invention, there is proposed a recliner assembly for a seat belt retractor, configured for adjusting a positioning angle of a vehicle sensing device of the seat belt retractor, comprising:

a housing having a core lead-in, the housing configured for pivotal drive connection with a backrest of a vehicle seat; and

a dial received in the housing, the dial being rotatable relative to the housing, the dial having a core wire fixing portion configured to fix an end portion of the core wire introduced into the housing;

wherein, the angle modulation dish has the longer major diameter portion of turning radius and the short minor diameter portion of turning radius, the minor diameter portion has the heart yearn winding part, the heart yearn winding part is followed the heart yearn fixed part extends in first direction of rotation, wherein, when the casing rotates in first direction of rotation for the angle modulation dish, the heart yearn can be convoluteed on the heart yearn winding part, wherein, first direction of rotation corresponds to back inclination adjustment direction.

The angle modulation disc component has compact structure and less parts, is easy to manufacture and install, can ensure that the positioning angle of the vehicle sensing device is adaptive to the inclination angle adjustment of the seat backrest on one hand, and can keep the vehicle sensing sensitivity of the vehicle sensing device on the other hand, thereby having the advantages of the fixedly installed vehicle sensing device and the self-adaptive vehicle sensing device.

In some embodiments, the housing may be configured for fixed connection coaxially with a pivot of a backrest of a vehicle seat.

In some embodiments, the housing may include a box-like housing member having a mounting shaft on which the angle dial is rotatably mounted, and a cover plate.

In some embodiments, the housing member may have a longer radius of rotation long diameter portion and a shorter radius of rotation short diameter portion, and the short diameter portion of the housing member may cooperate with the long diameter portion of the angle dial for defining a range of angles of rotation of the housing relative to the angle dial. Preferably, the range of rotation angles is greater than 45 °, in particular greater than 60 °, for example greater than 90 °.

In some embodiments, the core wire lead-in may be configured such that the core wire is introduced into the recliner plate assembly in a direction tangential to the core wire winding.

In some embodiments, the core wire lead-in may be provided in the region of the short diameter portion of the housing component.

In some embodiments, the core wire fixing portion may be provided in a region of the long diameter portion of the angle adjusting disk adjacent to the front end surface as viewed in the first rotational direction.

In some embodiments, the recliner plate assembly may include a wrench, which may be configured for non-rotational mounting relative to a seat of a vehicle seat, which may limit rotation of the recliner plate.

In some embodiments, the recliner assembly may include a wrench slide configured for fixed mounting relative to a seat of a vehicle seat, the wrench and wrench slide being movable relative to each other.

In some embodiments, the wrench may be fixedly coupled to the recliner plate.

In some embodiments, the long diameter portion of the angle adjustment disc may have a slide slot, and the wrench may have a stop extending into the slide slot, the stop being movable relative to the angle adjustment disc between two ends of the slide slot.

In some embodiments, the sliding groove may be a circular arc groove concentric with the rotational axis of the angle adjusting disk.

In some embodiments, the minor diameter portion of the angle disk may have a circumferential groove, which may constitute the core wire wound portion.

In some embodiments, the circumferential groove may be a circular arc groove concentric with the rotational axis of the angle adjusting disk.

In some embodiments, the corner plate, wrench, and cover plate may be mounted to the housing components in sequence.

According to a second aspect of the present invention, a seatbelt retractor is proposed, comprising a retractor body configured for mounting to a backrest of a vehicle seat and a rotatable vehicle sensing device integrated in the retractor body, the seatbelt retractor further comprising a recliner assembly according to the first aspect of the present invention, the recliner assembly being coupled with the vehicle sensing device via a core wire.

The aforementioned technical features and the technical features mentioned below as well as the technical features shown in the drawings may be combined with each other as desired, provided that they are not mutually contradictory. All technically feasible combinations of features are the technical content described in the specification of the present application.

Drawings

The invention is explained in more detail below with the aid of embodiments and with reference to the drawings. Wherein:

fig. 1 is a schematic side view of a vehicle seat with a seatbelt retractor.

Fig. 2 is a schematic view of the seatbelt retractor of fig. 1.

Fig. 3 is an exploded view of the seatbelt retractor of fig. 2.

Figure 4 is an exploded view of the recliner plate assembly.

Figure 5 is a perspective view of the recliner plate assembly.

Figure 6 is a perspective view of the housing components of the recliner assembly.

Figure 7 is a schematic view of the recliner assembly in one operating state together with the core wire assembly.

Detailed Description

Fig. 1 schematically shows a side view of a vehicle seat with a seatbelt retractor. Fig. 2 is an enlarged schematic view of the seatbelt retractor of fig. 1, wherein the vehicle seat is hidden. The vehicle may be, for example, a passenger car or a truck, in particular a motor vehicle which is driven partially or completely autonomously. The vehicle seat has a seat part 5 and a backrest 4, the backrest 4 being tiltable forwards and backwards from a predetermined, substantially upright initial position depicted in fig. 1 by a solid line. The initial position may be optimized for occupant seating and maneuvering of the vehicle. The backrest 4 can be laid down forwards on the seat 5 to make room. The backrest 4 can be adjusted backwards to a maximum inclination close to horizontal, at which the occupant can rest. The maximum inclination position may correspond to an inclination close to 180 °, for example an inclination of about 170 °, with reference to the direction of advance of the vehicle. The backrest 4 can be adjusted to any intermediate position between the predetermined initial position and the maximum inclination position, for example to an inclination of about 120 ° or 135 °, according to the user's needs. The two end positions of the backrest 4 are depicted in fig. 1 with dashed lines.

The retractor main body 1 is fixedly mounted in the backrest 4. The retractor body 1 has an integrated rotatable vehicle sensing device 10 (see fig. 2 and 3). A recliner assembly 3 may be mounted coaxially on the pivot of the backrest 4, the recliner assembly being coupled to the vehicle sensing device 10 via a core wire assembly 2. In the predetermined initial position of the backrest 4, the vehicle sensing device 10 is in a substantially vertical orientation. With the vehicle sensor device fixed relative to the backrest, when the backrest is adjusted rearward by a certain angle from the initial position, the vehicle sensor device is correspondingly oriented away from the vertical by this angle. In the case of an adaptive vehicle-sensing device, when the backrest is adjusted by a certain angle rearward from the initial position, the vehicle-sensing device is adaptively turned and held in the upright orientation by its own weight, however, the movable vehicle-sensing device has room for improvement in sensitivity, and the angle range of the adaptive adjustment typically does not exceed 45 °. In the seatbelt retractor according to the invention, when the backrest 4 is angled back from the initial position, this results on the one hand in a corresponding deviation of the vehicle sensor system 10 from the vertical orientation by this angle, and on the other hand simultaneously in a pulling of the core wire assembly 2 by the recliner disk assembly 3 and finally in a rotation of the vehicle sensor system 10 in the opposite direction by a further angle which can at least partially compensate for the aforementioned angle, particularly preferably substantially completely compensate for the aforementioned angle and thus can substantially maintain the vehicle sensor system 10 in the vertical orientation. Since the activity of the vehicle feel device 10 is constrained by the recliner assembly 3 and the core wire assembly 2, the vehicle feel sensitivity can be compared even with a fixedly mounted vehicle feel device. At the same time, the car feel device can be compared with an adaptive car feel device in terms of positioning angle. In other words, the vehicle interior sensor according to the invention can combine the advantages of a fixedly mounted vehicle interior sensor with the advantages of an adaptive vehicle interior sensor.

As shown in fig. 2 and 3, the retractor main body 1 may include a frame 17. Typically, the frame 17 may be configured as a U-shaped frame. A spindle 26 for winding the webbing is rotatably supported in the frame 17, and may be provided at one axial end with a coil spring that pretensions the spindle in the take-up direction and a coil spring side cover that covers the coil spring, which may be fixed to the frame 17. The wrap spring and wrap spring side covers may form a wrap spring assembly 22. The spindle 26 can carry the ratchet 21 at the other axial end. Here, the retractor body 1 may have a mechanical inner cover 18 and a mechanical outer cover 23. The ratchet 21 may be received in the machine interior cover 18 and the ride-on device 10 may be mounted in the machine interior cover. The mechanical inner cover 18 may in turn be received in a mechanical outer cover 23. The mechanical inner cover 18 and the mechanical outer cover 23 may be jointly fixed to the frame 17. In the event of an emergency situation of the vehicle, for example a crash or a roll-over, the vehicle sensing device 10 can lock the ratchet 21, so that the ratchet-guided locking pawl engages into the toothed ring of the frame 17, as can be seen in fig. 3, so that the spindle 26 is locked. As regards the vehicle sensing device 10 and the locking device, reference may be made, for example, to patent application CN110027502A by the present applicant. The vehicle sensing device 10 may include a rotatably supported sensor mount 14, which may have a concave bowl surface. The sensing ball 25 can move in the sensing seat. In the static state, the sensitive ball is positioned at the bottom of the bowl surface. In the event of an emergency situation in the vehicle, the sensitive ball 25 moves away from the bottom of the bowl under the action of the inertia force, lifting the sensitive pawl 15, which in turn lifts the locking pawl 8, so that the locking pawl 8 engages with the ratchet 21, causing the locking of the spindle 26.

The recliner plate assembly 3 and associated core wire assembly 2 and gearbox assembly 9 are described in more detail below with reference to fig. 4-7. Fig. 4 is an exploded view of the recliner disc assembly 3, wherein a section of the core wire assembly 2 associated with the recliner disc assembly 3 is additionally depicted. Fig. 5 is a perspective view of the disc 31 of the disc pack 3. Fig. 6 is a perspective view of the housing part 13 of the recliner assembly 3. Fig. 7 is a schematic view of the recliner assembly 3 together with the core assembly 2 in an operating state, wherein a section of the core assembly 2 associated with the recliner assembly 3 is additionally depicted and the sheath of the core 28 is omitted.

The recliner assembly 3 is configured for automatically adjusting the angle of orientation of the vehicle sensing device 10 as the seat back adjusts the recline, ideally so that the vehicle sensing device 10 may remain substantially in a vertical orientation. It is also possible that the recliner assembly 3 may only partially compensate for the angular deviation from the vertical of the vehicle sensing device 10 due to the seat back being adjusted for inclination. For example, when the seat back is tilted backwards from the upright position by 20 ° or to a tilt angle of about 110 ° relative to the vehicle forward direction, the recliner assembly 3 may compensate for only half of the 20 ° angular deviation from the vertical of the vehicle sensing device 10, so that the vehicle sensing device 10 still has an angular deviation of 10 ° from the vertical. This still improves the feel function compared to the case where the feel device 10 is fixedly mounted and thus there is a 20 ° angular deviation.

The recliner assembly 3 includes a housing. In particular, the housing may comprise a box-shaped housing part 13 and a cover plate 11, wherein the cover plate 11 may be fixedly mounted to the backrest 4 and the housing part 13 may be fixedly connected with the cover plate 11. The housing is configured for pivotal drive connection with the backrest 4. Advantageously, the housing may be configured for fixed connection coaxially with the pivot axis of the backrest 4. Therefore, when the backrest 4 is pivoted to adjust the reclining angle, the housing is rotated together with the backrest in synchronization. This can be particularly simple in construction. However, it is also possible, for example, for the housing to be in driving connection with a pivot of the backrest 4 by means of a gear mechanism, for example to be in driving connection concentrically with the pivot of the backrest 4 by means of a planetary gear mechanism, wherein the sun gear can be stationary, for example fixed to the seat 5, one of the planet carrier and the ring gear can be in fixed connection with the pivot of the backrest 4, and the other of the planet carrier and the ring gear can be connected with the housing part 13. The housing part 13 can have a core wire insertion 46, from which core wire insertion 46 the core wire 28 of the core wire assembly 2 can be inserted into the housing and fixed with an end 29 to a core wire fastening part 58 of a recliner disk 31, which will be described further below. For example by means of screws 32. The housing member 13 may have a long diameter portion 41 having a long turning radius and a short diameter portion 42 having a short turning radius. The housing is rotatable in a first rotational direction D1 and in a second rotational direction D2 opposite the first rotational direction, wherein the first rotational direction D1 corresponds to a back rest tilt rearward adjustment direction and the second rotational direction D2 corresponds to a back rest tilt forward adjustment direction.

The recliner assembly 3 may comprise a recliner disc 31 received in the housing, the recliner disc being rotatable relative to the housing. For this purpose, the housing part 13 can have a mounting shaft 47, on which mounting shaft 47 the angle dial 31 is rotatably mounted. The angle adjusting disk 31 may have a long diameter portion 51 having a long turning radius and a short diameter portion 52 having a short turning radius. The long diameter portion 51 may have a core wire fixing portion 58. The short diameter portion 52 may have a core wire winding portion 59. Advantageously, the core wire winding portion 59 may be configured as a circumferential groove of the periphery of the short diameter portion 52, preferably having a depth and a width not smaller than the diameter of the core wire 28.

Referring to the first rotational direction D1, the short diameter portion 42 of the housing member 13 has a front end surface 43 and a rear end surface 44, and the long diameter portion 51 of the recliner 31 has a front end surface 53 and a rear end surface 54. The front end surface 53 and the rear end surface 54 may be configured as flat surfaces, for example, flat surfaces extending substantially radially, or may be configured as a transitional curved surface from the long diameter portion 51 to the short diameter portion 52. The core wire fixing portion 58 may be provided in a region of the long diameter portion 51 adjacent to the front end face 53. The core wire wound portion 59 may extend from an end adjacent to the distal end surface 53 of the long diameter portion 52 toward the other end of the short diameter portion 52 in the short diameter portion 52. The core wire wound portion 59 may occupy the entire circumference or a part of the circumference of the outer edge of the short diameter portion 52, and preferably occupies more than half, for example, 80% or more of the circumference of the outer edge of the short diameter portion 52. Advantageously, the core wire 28 may be introduced into the recliner assembly 3 in a direction tangential to the core wire winding 59 and fixed to the core wire fixing part 58. The range of the angle of rotation of the housing or housing part 13 relative to the angle disc 31 defines the effective adjustment range of the angle disc assembly, wherein the abutment of the rear end face 44 of the short-diameter portion 42 of the housing part 13 and the front end face 53 of the long-diameter portion 51 of the angle disc 31 against one another defines one end of the range of angle of rotation, and the abutment of the front end face 43 of the short-diameter portion 42 of the housing part 13 and the rear end face 54 of the long-diameter portion 51 of the angle disc 31 against one another defines the other end of the range of angle of rotation. The range of rotation angles covers at least the range of adjustment of the seat back from the upright initial position to the maximum inclination position.

The recliner assembly 3 may include a wrench 12 configured for non-relative rotational mounting with respect to the seat 5, which may limit the rotation of the recliner 13. Particularly advantageously, the recliner assembly may further comprise a wrench slider 7 configured for being fixedly mounted with respect to the seat 5, the wrench 12 and the wrench slider 7 being movable with respect to each other. The combination of the wrench 12 and the wrench slide 7 can be adapted to different vehicle seats, wherein the wrench slide 7 can be simply fixed in the seat 5 and the wrench 12 can be moved appropriately relative to the wrench slide 7, which can compensate for component tolerances and possible changes in the position of the components when the backrest 4 is adjusted to the inclination angle. In a not shown embodiment, the angle dial 31 can be fixedly connected to the wrench 12. In a not shown embodiment, the wrench 12 and the wrench slide 7 can be replaced by one integrally formed part. In the embodiment shown, the angle dial 31 can have a sliding slot 55, and the wrench 12 can have a stop 6, which stop 6 can project into the sliding slot 55, so that the angle dial 31 can be rotated relative to the wrench 12 within the angular range defined by the sliding slot 55. With reference to the first direction of rotation, the chute has a front end 56 and a rear end 57. The function of the chute 55 will be described in more detail later.

In the simplest case, the core assembly 2 may comprise only the core 28. Advantageously, however, the core assembly 2 may additionally comprise a jacket 27. The end of the sheath 27 facing the recliner plate assembly 3 may be fixed in a core lead-in 46 of the housing. The cord introduction portion 46 may open into the short diameter portion 42 of the housing member 13, and the short diameter portion 42 may have a cord inlet 45 through which the cord 28 may pass to the housing interior and tangentially lead to the cord winding portion 59. The other end 30 of the core wire 28 may be drivingly connected to the vehicle sensory device 10 such that winding and unwinding of the core wire 28 on the recliner 13 may operate the vehicle sensory device 10. More specifically, the end 30 of the core wire 28 may be drivingly connected to the movable sensitive mount 14 of the vehicle sensory device 10.

In the illustrated embodiment, the end 30 of the core wire 28 may be mated with the gear box assembly 9. The gearbox assembly 9 may be mounted in a mechanical cover 23. The gear box assembly 9 may include a gear housing comprising two

housing components

16, 20. The transmission pulley 19 is rotatably supported in the transmission housing, more specifically, may be supported on the center post of the first housing component 20. The end 30 of the cord 28 may be secured to the drive pulley 19 and may be wound and unwound around the periphery of the drive pulley. The transmission pulley 19 may have a push rod which can operate the susceptor 14. For example, the push rod may have a ball head and the susceptor may have a pair of arms extending from the body, with the ball head being received between the pair of arms. The winding of the core wire 28 on the angle disc 13 can cause the effective length of the core wire 28 to be shortened, so that the end 30 of the core wire 28 can drive the transmission pulley 19, and the push rod of the transmission pulley 19 can operate the sensitive seat 14. Ideally, the rotation of the sensitive seat 14 due to the back tilt adjustment and the rotation due to the winding of the core wire can be cancelled out each other, so that the orientation of the sensitive seat 14 can be kept unchanged. Advantageously, the gearbox assembly 9 may further comprise a return spring 24, which pretensions the core wire 28.

Fig. 7 is a schematic view of the recliner assembly 3 together with the core wire assembly 2 in an operating state in which the backrest 4 of the vehicle seat has been angled backwards from a substantially upright initial position, the housing part 13 has been rotated in a first rotational direction D1, and the core wire 28 has been wound around a section of the core wire winding 59. The stop 6 abuts against the rear end 54 of the slide 55, and the angle adjusting plate 31 is fixed by the wrench 12. The housing part 13 can be rotated further in the first direction of rotation D1 from the position shown in fig. 7, in other words, the backrest 4 of the vehicle seat can be tilted further rearward, while the core wire 28 can be wound further onto the core wire winding portion 59.

The above-described movement process can also be described below with reference to the backrest 4 of the vehicle seat as a reference frame on the basis of the movement relativity. When the backrest of the vehicle seat is adjusted rearward from the substantially upright initial position, the housing part 13 fixed to the backrest 4 is stationary, the wrench 12 fixed to the seat part 5 is rotated in the second rotational direction D2, and the wrench 12 rotates the angle adjusting disk 31 together with it as the stop 6 of the wrench 12 abuts against the end 57 of the slide groove 55, so that the core wire 28 is wound around the core wire winding portion 59. The transmission pulley 19 correspondingly rotates, the core wire 28 unwinds on the transmission pulley 19, and the transmission pulley 19 pushes the motion sensing device 10 by means of the push rod, so that the motion sensing device 10 rotates.

Further operation of the recliner assembly 3 will be described with continued reference to the vehicle coordinate system.

If, starting from the position shown in fig. 7, the backrest 4 of the vehicle seat is returned to the upright starting position, the housing part 13 is rotated in the second direction of rotation D2, the recliner 31 is held pressed against the stop 6 with the rear end 57 of the link 55 with the core wire 28 pretensioned, and the core wire 28 is unwound from the core wire winding 59. When the housing part 13 continues to rotate in the second rotation direction D2 until the rear end face 44 of the short diameter portion 42 of the housing part 13 contacts the front end face 53 of the long diameter portion of the recliner plate 31, the recliner plate 31 moves together with the housing part 13, wherein the presence of the slide slot 55 allows the recliner plate 31 to move together with the housing part 13, which may move together until the front end 56 of the slide slot 55 reaches the stop 6. The movement of the recliner 31 together with the housing part 13 may correspond to a forward tilting process of the backrest 4 of the vehicle seat, wherein an angular adjustment of the vehicle sensation device 10 by means of the recliner assembly 3 is not required.

When the backrest 4 of the vehicle seat is returned from the position laid down forward on the seat part 5 to the upright starting position, the housing part 13 is rotated in the first rotational direction D1, the recliner 31 is pulled by the pretensioned core wire 28 and thereby rotates together with the housing part 13 in the first rotational direction D1 until the rear end 57 of the link 55 reaches the stop 6 and the recliner 31 is thereby secured against movement by the wrench 12 and the wrench slider 7. Then, as the housing member 13 continues to rotate in the first rotational direction D1, the core wire 28 is wound around the core wire winding portion 59 and thus performs an angle adjustment function. If the backrest 4 of the vehicle seat concerned does not have the function of lying down forward but only the function of adjusting the angle of inclination rearward, the slide 55 can be dispensed with and the wrench 12 can be directly fixedly connected to the angle adjustment plate 31.

In the embodiments of the disclosure, it is possible in some embodiments that during the assembly of the core wire, the core wire can be cut around the short diameter section of the angle dial, into the short diameter section of the housing part of the angle adjustment assembly, and then be led out. Since the short-diameter portion of the housing part can be relatively short, structural cavities can be present on both sides of the core wire during assembly, so that the core wire can be led out of the short-diameter portion of the housing part more easily. The entire recliner disc layout may be compact and the overall dimensions may be small, which may facilitate customer installation and matching.

It is noted that the terminology used herein is for the purpose of describing particular aspects only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be understood that the terms "comprises" and "comprising," and other similar terms, when used in this specification, specify the presence of stated operations, elements, and/or components, but do not preclude the presence or addition of one or more other operations, elements, components, and/or groups thereof. The term "and/or" as used herein includes all arbitrary combinations of one or more of the associated listed items. In the description of the drawings, like reference numerals refer to like elements throughout.

The thickness of elements in the figures may be exaggerated for clarity. It will be further understood that if an element is referred to as being "on," "coupled to" or "connected to" another element, it can be directly on, coupled or connected to the other element or intervening elements may be present. Conversely, if the expressions "directly on … …", "directly coupled with … …", and "directly connected with … …" are used herein, then there are no intervening elements present. Other words used to describe the relationship between elements, such as "between … …" and "directly between … …", "attached" and "directly attached", "adjacent" and "directly adjacent", etc., should be similarly interpreted.

Terms such as "top," "bottom," "above," "below," "over," "under," and the like, may be used herein to describe one element, layer or region's relationship to another element, layer or region as illustrated in the figures. It will be understood that these terms are intended to encompass other orientations of the device in addition to the orientation depicted in the figures.

It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. Thus, a first element could be termed a second element without departing from the teachings of the present inventive concept.

It is also contemplated that all of the exemplary embodiments disclosed herein may be combined with each other as desired. Finally, it is pointed out that the above-described embodiments are only intended to be understood as an example of the invention and do not limit the scope of protection of the invention. It will be apparent to those skilled in the art that modifications may be made in the foregoing embodiments without departing from the scope of the invention.

Claims

1. A recliner plate assembly for a seat belt retractor configured for adjusting a positioning angle of a vehicle sensing device (10) of the seat belt retractor, comprising:

a housing having a core lead-in (46), which housing is configured for a pivot-driven connection to a backrest (4) of a vehicle seat; and

a cable adjusting disk (31) which is received in the housing and is rotatable relative to the housing, the cable adjusting disk having a cable fixing section (58) which is designed to fix an end section (29) of the cable (28) which is introduced into the housing;

it is characterized in that the preparation method is characterized in that,

the angle disc has a long diameter part (51) with a relatively long turning radius and a short diameter part (52) with a relatively short turning radius, the short diameter part having a core winding (59) extending from the core fixing part in a first turning direction (D1), wherein the core can be wound around the core winding upon turning of the housing relative to the angle disc in the first turning direction, wherein the first turning direction corresponds to a backrest reclining direction.

2. A recliner assembly for a seat belt retractor according to claim 1 wherein the housing is configured for fixed connection coaxially with a pivot of a backrest of a vehicle seat.

3. A recliner assembly for a seat belt retractor according to claim 1 or 2 wherein the housing includes a box-like housing member (13) and a cover plate (11), the housing member having a mounting shaft (47) on which the recliner is rotatably mounted;

preferably, the housing part has a long diameter portion with a relatively long turning radius and a short diameter portion with a relatively short turning radius, the short diameter portion of the housing part co-acting with the long diameter portion of the angle dial for defining a turning angle range of the housing relative to the angle dial.

4. A recliner assembly for a seatbelt retractor according to any one of claims 1 to 3, wherein the core wire introducing portion is configured such that the core wire is introduced into the recliner assembly in a direction tangential to the core wire winding portion; and/or

The core wire lead-in portion is provided in a region of the short diameter portion of the case member.

5. The recliner assembly for a seatbelt retractor according to any one of claims 1 to 4, wherein the core wire fixing portion is provided in a region of the long diameter portion of the recliner adjacent to a front end surface as viewed in the first rotational direction.

6. A recliner assembly for a seat belt retractor according to any of claims 1 to 5, including a wrench (12) configured for non-relative rotational mounting with respect to a seat (5) of a vehicle seat, the wrench limiting rotation of the recliner;

preferably, the recliner assembly comprises a wrench slider (7) configured for being fixedly mounted with respect to a seat of a vehicle seat, the wrench and wrench slider being movable relative to each other;

preferably, the long diameter portion of the angle adjustment disc has a slide slot (55), and the wrench has a stop (6) which projects into the slide slot, the stop being movable relative to the angle adjustment disc between the two ends of the slide slot.

7. The recliner plate assembly for a seatbelt retractor according to any one of claims 1 to 6, wherein the short diameter portion of the recliner plate has a circumferential groove which constitutes the core wire winding portion;

preferably, the circumferential groove is a circular arc groove concentric with the rotation axis of the angle adjusting disc.

8. A recliner assembly for a seat belt retractor according to any one of claims 1 to 7 wherein the recliner assembly includes a wrench configured for non-rotational mounting relative to a seat portion of a vehicle seat, the recliner, the wrench and the cover plate being mounted to the housing component in sequence.

9. A seat belt retractor comprising a retractor body configured for mounting to a backrest of a vehicle seat and a rotatable vehicle sensing device integrated in the retractor body, characterized in that the seat belt retractor further comprises a recliner assembly for a seat belt retractor according to any of claims 1 to 8, the recliner assembly being coupled with the vehicle sensing device via a core wire.