WO2020220911A1 - 用于机动车的安全带卷收器和安全带装置 - Google Patents

用于机动车的安全带卷收器和安全带装置 Download PDF

Info

Publication number
WO2020220911A1
WO2020220911A1 PCT/CN2020/082446 CN2020082446W WO2020220911A1 WO 2020220911 A1 WO2020220911 A1 WO 2020220911A1 CN 2020082446 W CN2020082446 W CN 2020082446W WO 2020220911 A1 WO2020220911 A1 WO 2020220911A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat belt
follower
mandrel
working surface
trigger
Prior art date
Application number
PCT/CN2020/082446
Other languages
English (en)
French (fr)
Inventor
张立俊
陆凯
王飞
Original Assignee
延锋汽车智能安全系统有限责任公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 延锋汽车智能安全系统有限责任公司 filed Critical 延锋汽车智能安全系统有限责任公司
Publication of WO2020220911A1 publication Critical patent/WO2020220911A1/zh

Links

Images

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
    • B60R22/36—Belt retractors, e.g. reels self-locking in an emergency
    • B60R22/40—Belt retractors, e.g. reels self-locking in an emergency responsive only to vehicle movement
    • 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
    • B60R22/36—Belt retractors, e.g. reels self-locking in an emergency
    • B60R22/41—Belt retractors, e.g. reels self-locking in an emergency with additional means for preventing locking during unwinding under predetermined conditions
    • 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
    • B60R22/4671—Reels with means to tension the belt in an emergency by forced winding up characterised by spring actuators

Definitions

  • the present invention relates to the technical field of motor vehicle safety, and more specifically, to a seat belt retractor for a motor vehicle and a seat belt device including such a seat belt retractor.
  • the seat belt device In a motor vehicle, the seat belt device is an important part of the occupant restraint system, especially in a traffic accident, it can provide protection for the occupant, avoid injury to the occupant or reduce the injury to a minimum. With the development and progress of motor vehicle technology, expectations and requirements for the ride comfort of motor vehicles are getting higher and higher. Especially with regard to noise in the interior of a motor vehicle, the highest possible quietness during the operation of the motor vehicle is desirable.
  • the seat belt retractor may have a car-sensing device, and the car-sensing device may include some metal parts, which may collide with each other due to road inequality when the motor vehicle is running, which causes certain noise. Especially when the seat belt retractor is installed in an area close to human ears in a motor vehicle, the noise caused by the vehicle sensing device is more disturbing to the occupants, which adversely affects the riding comfort.
  • Motor vehicles are usually equipped with multiple seat belt devices. However, not all seat belt devices will be used at the same time. For unused seat belt devices, measures can be taken to suppress the car-sensing device of the corresponding seat belt device, so as to reduce or even eliminate the noise caused by the corresponding car-sensing device.
  • Patent document CN1754724B describes a seat belt retractor, which has a vehicle-sensing device and a restraining mechanism.
  • the restraining mechanism can restrain the vehicle-sensing device, so that the collision of parts of the vehicle-sensing device can be avoided.
  • the restraining mechanism has many parts, which have to be cleverly designed to be able to be assembled and cooperated with each other. This kind of seat belt retractor has a large number of parts, more complex assembly, and room for improvement in robustness.
  • the object of the present invention is to provide a seat belt retractor for a motor vehicle and a seat belt device including such a seat belt retractor, wherein the seat belt retractor can achieve noise reduction At the same time, it has a simpler structure and a smaller number of parts and is assembly-friendly.
  • a seat belt retractor for a motor vehicle which includes:
  • a mandrel which is rotatably supported in the bracket and is biased in the winding direction;
  • a locking mechanism configured to lock the mandrel in the unwinding direction in the activated state and release the mandrel in the deactivated state
  • a car-sensing device configured to sense the safety-related working state of the motor vehicle, the car-sensing device having movable parts;
  • a restraining mechanism includes a deceleration mechanism, the deceleration mechanism has an input element and an output element, the input element is anti-rotationally connected with the core shaft;
  • the output element has a working surface
  • the suppression mechanism includes a follower, a suppression component movably coupled with the follower, and a return spring, the follower can be manipulated by the working surface of the output element, and the return spring makes the suppression component Bias the follower in the direction of releasing the movable part;
  • the working surface of the output element manipulates the follower so that the restraining component is in a position that restrains the movable component
  • the restraining member leaves the position restraining the movable member.
  • a separate cam disc can be omitted, and therefore it is also possible to suppress the vehicle feeling function of the vehicle feeling device.
  • the other parts of the mechanism can be constructed relatively simply, and the assembly operation related to the restraining mechanism can be more friendly, so that the robustness of the seat belt retractor during operation is improved.
  • the vehicle sensing device can sense any one or more of the following operating parameters of the vehicle: longitudinal acceleration, longitudinal deceleration, pitch angle, roll angle, centrifugal acceleration, yaw rate, or comprehensively Sensing multiple operating parameters, for example, can sense the combined acceleration of a motor vehicle.
  • the movable parts of the vehicle sensing device may include, for example, an induction steel ball that can roll in a dimple, or a roller that can roll in a raceway, or a slider that can slide on a sliding surface, or a swing element with a predetermined inertia, etc. .
  • the output element may have an integrated flange, and the outer peripheral surface of the flange constitutes the working surface.
  • the working surface may be formed by an arc-shaped surface element integrated with the output element.
  • the flange may be formed integrally with the output element by an injection molding method, for example.
  • the flange and the output element may be manufactured separately first and then fixed together in a material-locking manner, for example, by bonding or welding.
  • the follower in the unwinding direction, after a predetermined rotation stroke of the mandrel, the follower is separated from the working surface of the output element.
  • the follower in the unwinding direction, after the predetermined rotation stroke of the mandrel, the follower can continue to rest on the working surface of the output element. At this time, the corresponding The section squeezes the follower to a reduced degree, so that the restraining member leaves the position restraining the movable member.
  • the mandrel In the installed state of the seat belt retractor in the motor vehicle, the mandrel may have a rest position in which the seat belt device with the seat belt retractor and the webbing is not used.
  • the speed reduction mechanism may be constituted as a swing gear mechanism that includes an eccentric wheel as an input element, a swing gear as an output element, and a stationary ring gear, which are non-rotatably connected with a core shaft, The swing gear is eccentrically supported with respect to the rotation axis of the core shaft by the eccentric, and the swing gear is meshed with the ring gear.
  • the reduction mechanism may be configured as a cylindrical gear mechanism or a planetary gear mechanism.
  • the restraining mechanism may have a trigger disk, the trigger disk may have a groove, the trigger disk is rotatably supported, and the trigger disk can be rotated while overcoming resistance.
  • the resistance force may be friction, spring force, or electromagnetic force, for example.
  • the output element may have a transmission protrusion which extends into the groove and can move freely between the two ends of the groove.
  • the transmission protrusion may be configured as a transmission pin.
  • the transmission protrusion may be provided on the axial end surface of the flange.
  • the trigger disk may have a working surface, and the working surface of the trigger disk may be configured to support the follower when the follower is separated from the working surface of the output element.
  • the follower may have a stop element
  • the working surface of the trigger plate may have a recess
  • the working surface of the trigger plate and the stop element may be configured as:
  • the driven member supports the work of the trigger disk outside the recess Surface, the stop element does not work;
  • the follower In the maximum unwinding position of the mandrel, the follower is supported in the recess, and the stop element causes the activation of the locking mechanism.
  • the stop element may be configured as a pawl.
  • the follower may be configured as a pivotally supported follower. In other embodiments, the follower may be configured as a follower that can move linearly.
  • the follower may have a support arm configured to rest on the working surface of the output element.
  • the support arm in the predetermined rest position of the mandrel, rests against the front end of the working surface of the output element in the unwinding direction.
  • the working surface of the output component Therefore, the working surface can be designed compactly.
  • the follower may have a supporting arm configured to rest on the working surface of the output element and to rest on the working surface of the trigger plate.
  • the follower may have two support arms, one of which is configured to rest on the working surface of the output element, and the other is configured to rest On the working surface of the trigger plate.
  • the restraining member may be an integral elastic component of the follower, or the restraining member may be constituted as a cantilever part of the return spring.
  • the seat belt retractor may have a side cover, and the side cover is fixed on the bracket.
  • the side cover may have a bottom surface and a protrusion extending from the bottom surface, and the input element is rotatably supported on the protrusion.
  • the input element may have a first snap element
  • the protrusion may have a second snap element
  • the first snap element and the second snap element form a snap connection
  • the input element and the protrusion are fixed to each other in the axial direction.
  • the input element may have a flange surface, and the output element is supported on the flange surface of the input element in the axial direction.
  • the trigger disk is rotatably supported on the protrusion.
  • the trigger disk may be pressed against the bottom surface so that the trigger disk can rotate relative to the bottom surface while overcoming friction.
  • the trigger disk may be pressed against the bottom surface by a plurality of reeds. In other embodiments, the trigger disk may be pressed against the bottom surface by a spring clip. In other embodiments, the trigger disk can be pressed against the friction element on the outer circumference, thereby generating friction between the trigger disk and the friction element.
  • the output element presses the trigger plate against the bottom surface.
  • the protrusion may have a first shaft section spaced apart from the bottom surface and a second shaft section adjacent to the bottom surface, and the trigger disk is rotatably sleeved on the second shaft section
  • the first snap element surrounds the first shaft section, and the second snap element is disposed on the end of the protrusion.
  • the ring gear may be connected to the side cover in a non-rotational manner, for example, the two may be integrally formed by injection molding.
  • two components are connected in a rotationally fixed manner
  • the two parts are connected anti-rotationally
  • the seat belt retractor may have a combination of the following technical features:
  • the speed reduction mechanism is configured as a swing gear mechanism that includes an eccentric wheel as an input element, a swing gear as an output element, and a ring gear that are non-rotatably connected to a core shaft, and the swing gear passes through the eccentric wheel.
  • the swing gear Is supported eccentrically with respect to the rotation axis of the mandrel, and the swing gear meshes with the ring gear, the swing gear has an integrated fan-shaped flange, and the outer peripheral surface of the flange constitutes the working surface,
  • the swing gear has a transmission protrusion, the eccentric wheel has a first snap element, the eccentric wheel has a flange surface, and the swing gear is supported on the flange surface of the eccentric wheel in an axial direction;
  • the restraining mechanism has a trigger disk, the trigger disk has a groove, the transmission protrusion extends into the groove and can move freely between the two ends of the groove, the The trigger disk has a working surface, and the working surface of the trigger disk is configured to support the follower when the follower is separated from the working surface of the swing gear; and
  • the seat belt retractor has a side cover, the side cover is fixed on the bracket, the gear ring is connected to the side cover in a rotationally fixed manner, and the side cover has a bottom surface and a side cover extending from the bottom surface.
  • a protrusion the protrusion having a first shaft section spaced apart from the bottom surface, a second shaft section adjacent to the bottom surface, and a second snap element provided on an end of the protrusion;
  • the trigger disk is rotatably sleeved on the second shaft section, and the first buckle element surrounds the first shaft section;
  • first buckle element and the second buckle element form a snap connection, so that the eccentric wheel and the protrusion are fixed to each other in the axial direction, and the flange surface of the eccentric wheel and the In the snap connection, the swing gear presses the trigger disk against the bottom surface, so that the trigger disk can be rotated relative to the bottom surface under the condition of overcoming friction.
  • the maximum unwinding position may be a mandrel position.
  • the length of the webbing pulled out at the mandrel position is greater than or equal to The length of the webbing that is pulled out when the seat belt device is worn as specified. This can be particularly advantageous when a child seat is installed in a motor vehicle, wherein an automatic locking of the webbing in the pull-out direction can be achieved while restraining a child sitting on the child seat.
  • the vehicle feel function of the vehicle feel device is suppressed by the suppression mechanism, so that noise reduction can be achieved.
  • the car-sensing device can restore the car-sensing function, so the car-sensing function can be provided as required.
  • the vehicle sensing device may include a base, a sensing element movable in the base, and a stop element movably supported in the base, and the sensing element can occupy the base in the base.
  • a stationary initial position and movable in response to the running state of the motor vehicle the stop element can occupy the stationary initial position and can be lifted by the sensing element, and the stop element is configured to When the position is raised to a predetermined position, the locking mechanism is activated.
  • the stopping element of the vehicle sensing device may be configured as a pawl.
  • the sensing element may be configured as a sensing steel ball, and the base may have a dimple, and the sensing steel ball can roll in the dimple in response to the running state of the vehicle.
  • the stop element of the sensing device may be configured as a claw element.
  • the claw element is pivotally supported in the base.
  • the claw element may cover the recess and the induction steel ball received in the recess.
  • the stop element of the sensing device may be configured as a stop element that can move linearly.
  • the locking mechanism may include a trigger locking mechanism and a main locking mechanism, wherein the trigger locking mechanism has a smaller working load, so it can be designed weakly, and the main locking mechanism has a larger Therefore, it needs to be designed more robustly.
  • the locking mechanism may include a locking disc, and the stopping of the locking disc can cause the mandrel to be locked in the unwinding direction.
  • the seat belt retractor may have a combination of the following technical features:
  • the locking mechanism includes a locking pawl, the locking disc has a locking groove, the locking groove has a radially inner end and a radially outer end, and the locking pawl is locked by the lock
  • the groove is guided and biased in the direction of the radially inner end of the locking groove;
  • the bracket has teeth
  • the mandrel has a vacant portion, and the vacant portion receives the locking claw
  • the locking pawl can engage with the tooth portion when moving in the direction of the radially outer end of the locking groove, so that the locking pawl is stopped and therefore the mandrel is unwinding The direction is locked.
  • a seat belt device for a motor vehicle includes a webbing and a seat belt retractor for a motor vehicle according to the first aspect of the present invention, wherein the The mandrel of the seat belt retractor is the reel of the webbing.
  • Figure 1 is an exploded view of a seat belt retractor according to an embodiment of the present invention
  • Figure 2 is a partially omitted view of the side cover of the seat belt retractor of Figure 1 viewed in the axial direction;
  • Fig. 3 is a partially omitted longitudinal sectional view of the seat belt retractor according to Fig. 1 in an assembled state
  • FIG. 4 to 9 are schematic diagrams of the restraining mechanism of the seat belt retractor according to FIG. 1 viewed in the axial direction in different states.
  • FIG. 1 the webbing 12 is schematically indicated by a broken line, and the mandrel 1 is rotatably supported in the bracket 4.
  • the end cap 13 for receiving the coil spring can be fixed on one end surface of the bracket 4.
  • the coil spring can bias the mandrel 1 in the winding direction, so that the webbing 12 is wound on the core without external tension.
  • the webbing 12 is pulled out from the mandrel 1 when the external tension can overcome the spring force of the coil spring.
  • the seat belt retractor has a locking mechanism 100.
  • the spindle 1 has a recess 1.1 which receives the locking pawl 3.
  • the support 4 has teeth 4.1.
  • the locking pawl 3 can interact with the toothing 4.1.
  • the vacant portion 1.1, the tooth portion 4.1, the locking pawl 3, and the locking disk 2 to be described are components of the locking mechanism 100.
  • the locking disk 2 has a locking groove 2.1 with a radially inner end and a radially outer end.
  • the locking pawl 3 is inserted into the locking groove 2.1 with the pin element 3.1 and is therefore guided by the locking groove 2.1.
  • the locking pawl 3 is biased by an unshown spring element in the direction toward the radially inner end of the locking groove.
  • the locking disc 2 is rotatably sleeved on the axon of the spindle 1.
  • the locking pawl 3 is in a radially inner position and is disengaged from the toothing 4.1, and the mandrel 1 can drive the locking disk 2 to rotate together via the locking pawl 3.
  • the locking pawl 3 is forced to move in the direction toward the radially outer end of the locking groove 2.1 until the lock The pawl 3 engages with the toothing 4.1, and the pawl 3 together with the spindle 1 is stopped.
  • the locking disc 2 can have ratchet teeth 2.2 on the circumference, or in other words, the locking disc 2 can be formed as a ratchet.
  • the stop element can be engaged with the ratchet teeth 2.2 and thereby cause the stop of the locking disc 2.
  • the seat belt retractor has a vehicle sensing device 6 configured to sense the safety-related working state of the motor vehicle, for example, it can be used to sense the acceleration, deceleration, and tilt angle of the motor vehicle. For example, when the deceleration of the motor vehicle reaches or exceeds a threshold value, the vehicle sensing device manipulates the stop element so that the stop element engages with the ratchet teeth 2.2 of the lock disc 2 to activate the locking function of the lock device.
  • the vehicle sensing device 6 includes a base 6.2, a sensing element 6.1 movable in the base, and a stop element 6.3 movably supported in the base.
  • the sensing element 6.1 can occupy a stationary initial position in the base 6.2 and can move in response to the running state of the motor vehicle.
  • the stop element 6.3 can occupy a static initial position and can be lifted by the sensing element 6.1, and the stop element 6.3 is configured to cause the lock when raised from its resting position to a predetermined position Stop the activation of the mechanism 100.
  • the induction element 6.1 may be configured as an induction steel ball, and the base 6.2 may have a dimple, and the induction steel ball can roll in the dimple in response to the running state of the motor vehicle.
  • the stop element 6.3 may be configured as a claw element, which is pivotally supported in the base 6.2, the claw element covers the recess and the sensor received in the recess Steel ball.
  • the stop element 6.3 can be lifted in relation to the position of the rolling steel ball in the recess. When the stop element 6.3 is lifted to a predetermined position, the stop element 6.3 engages with the ratchet teeth 2.2.
  • the stop element 6.3 can be regarded as a component part of the locking mechanism 100 and can also be regarded as a component part of the vehicle sensor device 6.
  • two separate components can also be provided, one of which is a stop element belonging to the locking mechanism 100, and the other is a lifting element belonging to the car sensor device 6, which can be manipulated The stop element.
  • the seat belt retractor may include a side cover 5 which can be regarded as a housing part of the seat belt retractor, and some parts of the seat belt retractor may be covered and protected by the side cover 5.
  • the side cover 5 can be fixed on the bracket 4.
  • the vehicle sensing device 6, the locking device 100 and the restraining mechanism 200 may be covered by the side cover 5, wherein the vehicle sensing device 6 is installed in the section 5.5 of the side cover 5.
  • the seat belt retractor has a restraining mechanism 200, which can restrain the feeling function of the vehicle feeling device when needed, realize noise reduction, and release the feeling function of the vehicle feeling device when needed, and realize the safety related of the vehicle Induction of the working status of the device, and when necessary, activate the locking function of the locking device.
  • the suppression mechanism 200 may include a speed reduction mechanism having an input element 7 and an output element 8.
  • the speed reduction mechanism may be configured as a swing gear mechanism, wherein the input element 7 may be configured as an eccentric and connected to the spindle 1 in a rotationally fixed manner, and the output element 8 may be configured as a swing gear and have an integrated sector-shaped convex Edge 8.1, the outer peripheral surface of the flange constitutes a working surface, and a stationary ring gear 5.1 may be provided in the side cover 5.
  • the swing gear is eccentrically supported with respect to the rotation axis of the spindle 1 by the eccentric wheel, and the swing gear meshes with the ring gear 5.1.
  • the restraining mechanism 200 has a trigger disc 9 with a groove 9.1, and the trigger disc is rotatably supported.
  • the output element 8 has a transmission protrusion 8.2, which extends into the groove 9.1 and can move freely between the two ends 9.3, 9.4 of the groove 9.1.
  • the trigger plate 9 has a working surface.
  • the working surface of the trigger plate 9 has a recess 9.2.
  • the restraining mechanism 200 includes a follower 10, a restraining member 11.1 movably coupled with the driven member 10, and a return spring 11, which biases the restraining member 11.1 away from the stop element 6.3. Press the follower 10.
  • the follower 10 may be configured as a pivotally supported follower.
  • the restraining member may be configured as a cantilever portion of the return spring 11. The cantilever portion can move together with the follower 10.
  • the driven part 10 has a support arm 10.1 and a stop element 10.2, which can be formed as a pawl.
  • the restraining component 11.1 squeezes the stop element 6.3 of the car sensor device 6 so that the stop element 6.3 and the sensing element 6.1 cannot be opposed to
  • the movement of the base 6.2 can reduce or even eliminate the noise caused by the collision of parts of the car sensor.
  • the support arm 10.1 is separated from the working surface of the output element 8, the restraining member 11.1 is driven by the follower 10 under the action of the return spring 11 to leave the stop element 6.3, and thereby release the vehicle feeling function of the vehicle feeling device .
  • the support arm 10.1 of the follower 10 can be leaned on the working surface of the output element 8 and on the working surface of the trigger disk 9, and the leaning can be realized in a time-staggered manner, Either sequentially and continuously, or partially overlapping.
  • the section 5.5 of the side cover 5 is omitted in FIGS. 2 and 3.
  • the side cover 5 has a bottom surface 5.4 and protrusions protruding from the bottom surface.
  • the input element 7 has a flange surface 7.2, and the output element 8 is supported on the flange surface 7.2 of the input element 7 in the axial direction.
  • the input element 7 has a first snap element 7.1 and is rotatably supported on the protrusion.
  • the protrusion has a first shaft section 5.2 spaced from the bottom surface 5.4, a second shaft section 5.3 adjacent to the bottom surface 5.4, and a second snap element 5.2.1 provided on the end of the protrusion.
  • a flange surface 5.2.2 is formed on the protrusion.
  • the first snap element 7.1 and the second snap element 5.2.1 form a snap connection, so that the input element 7 and the protrusion are fixed to each other in the axial direction.
  • the first snap element 7.1 surrounds the first shaft section 5.2.
  • the output element 8 presses the trigger disk 9 against the bottom surface 5.4, so that the trigger disk 9 can overcome the frictional force. In case of rotation relative to the bottom surface 5.4.
  • the mandrel 1 In the working state shown in Fig. 4, the mandrel 1 is in a predetermined rest position.
  • the webbing 12 is maximized under the spring force of the coil spring of the seat belt retractor It is retracted to a certain extent on the mandrel 1, which is in a predetermined rest position.
  • the support arm 10.1 of the follower 10 rests on the working surface of the flange 8.1 of the output element 8 and is close to the front end 8.1.1 of the working surface in the unwinding direction,
  • the transmission protrusion 8.2 blocks against the end 9.3 of the groove 9.1
  • the restraining component 11.1 squeezes the stop element 6.3 of the vehicle sensor device 6, so that the vehicle sensor device 6 is suppressed, thereby achieving noise reduction.
  • the mandrel 1 rotates in the unwinding direction
  • the output element 8 rotates in the first direction D1 corresponding to the unwinding direction at a predetermined reduction ratio to reach the state shown in FIG. Accordingly, the webbing 12 is pulled out to a certain length.
  • the working surface of the flange 8.1 of the output element 8 continues to support the support arm 10.1 of the follower 10.
  • the restraining component 11.1 continues to squeeze the stop element 6.3 of the car feel device 6, and the support arm 10.1 of the follower 10 approaches the output element 8.
  • the working surface of the flange 8.1 is located at the rear end 8.1.2. in the unwinding direction or the first direction.
  • the mandrel 1 continues to rotate in the unwinding direction, the output element 8 rotates in the first direction D1 at a predetermined reduction ratio, and reaches the state shown in Figure 6, where the convex of the output element 8
  • the working surface of the edge 8.1 has just left the support arm 10.1 with its end 8.1.2, and the support arm 10.1 rests on the working surface of the trigger plate 9 under the action of the return spring 11.
  • the restraining component 11.1 leaves the stop element 6.3 of the vehicle feeling device 6 under the drive of the follower 10, and the vehicle feeling function of the vehicle feeling device 6 is restored.
  • the mandrel 1 undergoes a first stroke in the unwinding direction from the state shown in FIG. 4 to the state shown in FIG. 6, and the webbing 12 is pulled out by a first length corresponding to the first stroke of the mandrel 1.
  • the trigger disk 9 remains stationary under the action of static friction, and the transmission protrusion 8.2 moves freely in the groove 9.1.
  • the mandrel 1 continues to rotate in the unwinding direction, the output element 8 rotates in the first direction D1 at a predetermined reduction ratio, and reaches the state shown in Fig. 7, wherein the support arm 10.1 continues to rest On the working surface of the trigger plate 9, the car sensing device 6 continues to be effective, and the transmission protrusion 8.2 blocks against the end 9.4 of the groove 9.1.
  • the mandrel 1 continues to rotate in the unwinding direction, and the trigger disk 9 is driven by the transmission protrusion 8.2 along the first direction D1 until it reaches the state shown in Figure 8, where the support arm 10.1 is in the return spring Under the action of 11, it enters into the recess 9.2 of the working surface of the trigger plate 9.
  • the stop element 10.2 engages with the ratchet tooth 2.2 of the lock plate 2, so the locking device 100 is activated, so that the mandrel 1 cannot continue to unwind.
  • the mandrel 1 reaches the maximum unwinding position, and the webbing 12 reaches the maximum drawn length.
  • the position of the core shaft 1 can correspond to the state between the state shown in Figure 4 and the state shown in Figure 8, especially in the case of a child seat. Corresponds to the state shown in Figure 8.
  • the support arm 10.1 breaks away from the working surface of the lock disk 9, and the support arm 10.1 reaches the end 8.1.2. of the working surface of the output element 8.
  • the working surface of the flange 8.2 of the output element 8 again supports the support arm 10.1 of the follower 10, so that the restraining member 11.1 re-presses the stop element 6.3 of the vehicle sensing device 6.
  • the mandrel 1 Under the action of the restoring force of the coil spring, the mandrel 1 can return from the state shown in FIG. 9 to the predetermined rest position shown in FIG. 4 along the winding direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automotive Seat Belt Assembly (AREA)

Abstract

一种用于机动车的安全带卷收器和安全带装置，其中安全带卷收器包括芯轴（1）、支架（4）、车感装置（6）、锁止机构(100）和抑制机构（200）；所述抑制机构包括减速机构，所述减速机构具有输入元件（7）和输出元件（8），所述输入元件（7）与芯轴（1）抗转动地连接，所述输出元件（8）具有工作面；所述抑制机构（200）包括从动件(10）、抑制部件（11.1）以及复位弹簧（11）；在所述芯轴（1）的预定的静止位置上，所述输出元件（8）的工作面操纵所述从动件（10），使得所述抑制部件（11.1）处于抑制所述活动部件的位置上；沿退卷方向，在所述芯轴（1）的预定的转动行程之后，所述抑制部件（11.1）离开抑制所述活动部件的位置。这种安全带卷收器结构简单、零件数量减少、稳健性较高。

Description

用于机动车的安全带卷收器和安全带装置 技术领域
本发明涉及机动车安全技术领域，更具体地，涉及一种用于机动车的安全带卷收器以及一种包括这样的安全带卷收器的安全带装置。
背景技术
在机动车中，安全带装置是乘员约束系统中的重要组成部分，特别是在交通事故中可以为乘员提供保护，避免乘员受到伤害或将伤害降低到最小程度。随着机动车技术的发展和进步，对机动车的乘坐舒适性的期望和要求越来越高。特别是在机动车内室中的噪音方面，在机动车运行时尽可能高的安静性是值得期望的。安全带卷收器可以具有车感装置，所述车感装置可以包括一些金属零件，它们在机动车运行时由于路面不平等因素有可能相互碰撞，这引起一定的噪音。特别是当安全带卷收器在机动车中安装在靠近人耳的区域中时，由车感装置引起的噪音对于乘员是较干扰性的，这不利地影响乘坐舒适性。
在机动车中通常配备多个安全带装置。然而，并非所有的安全带装置都会被同时使用。对于未被使用的安全带装置，可以采取措施来抑制相应的安全带装置的车感装置，以便减小或者甚至消除由相应的车感装置引起的噪音。
专利文献CN1754724B说明一种安全带卷收器，其具有车感装置和抑制机构。在机动车中，在安全带装置未被使用时，所述抑制机构能抑制车感装置，使得车感装置的零件的相互碰撞可以被避免。在这种现有技术的安全带卷收器中，抑制机构具有许多零件，它们要被巧妙地设计，以便能够相互组装和相互配合。这种安全带卷收器的零件数量较多，组装较复杂，稳健性有提高的空间。
发明内容
本发明的目的是，提出一种用于机动车的安全带卷收器以及一种包括这样的安全带卷收器的安全带装置，其中，所述安全带卷收器在能够实现降噪的同时具有较简单的结构和较少的零件数量并且是装配友好的。
按本发明的第一方面，建议一种用于机动车的安全带卷收器，其包括：
支架；
芯轴，所述芯轴可转动地支承在支架中并且在卷收方向上被偏压；
锁止机构，所述锁止机构构造成用于，在激活状态中在退卷方向上锁止所述芯轴并且在去活状态中释放所述芯轴；
车感装置，所述车感装置构造成用于感应机动车的安全相关的工作状态，所述车感装置具有活动部件；和
抑制机构，所述抑制机构包括减速机构，所述减速机构具有输入元件和输出元件，所述输入元件与芯轴抗转动地连接；
所述输出元件具有工作面；
所述抑制机构包括从动件、与所述从动件运动耦合的抑制部件以及复位弹簧，所述从动件能被所述输出元件的工作面操纵，所述复位弹簧在使所述抑制部件释放所述活动部件的方向上偏压所述从动件；
其中，在所述芯轴的预定的静止位置上，所述输出元件的工作面操纵所述从动件，使得所述抑制部件处于抑制所述活动部件的位置上；
其中，沿退卷方向，在所述芯轴的从所述静止位置起的预定的转动行程之后，所述抑制部件离开抑制所述活动部件的位置。
在按照本发明的安全带卷收器中，例如与前述的现有技术相比，可以省去一个单独的凸轮盘，因此也可能的是，使得用于抑制车感装置的车感功能的抑制机构的其他部件可以较简单地构成，与抑制机构相关的装配操作可以是较友好的，因此也使得安全带卷收器在工作时的稳健性得到改进。
在现有技术中已知一些用于安全带卷收器的车感装置和锁止机构。相关的现有技术例如可以参见专利文献EP2621767B1和CN104755331A以及前述的专利文献CN1754724B。
车感装置例如可以感应机动车的以下工作参数之中的任一个或多个：机动车的纵向加速度、纵向减速度、纵倾角度、侧倾角度、离心加速度、横摆角速度，或者可以综合地感应多个工作参数，例如可以感应机动车的合成的加速度。
车感装置的活动部件例如可以包括能在凹窝中滚动的感应钢球，或者能在滚道中滚动的滚柱，或者能在滑动面上滑动的滑块，或者具有预定惯性的摆动元件等等。
在一些实施方式中，所述输出元件可以具有集成的凸缘，所述凸缘的外周面构成所述工作面。在另外一些实施方式中，所述工作面可以通过与所述输出元件集成的弧形的面状元件构成。所述凸缘例如可以通过注塑方法与所述输出元件一体地构成。在 另外一些实施方式中，所述凸缘和所述输出元件可以首先单独地制造并且然后材料锁合地固定在一起，例如通过粘接或焊接。
在一些实施方式中，沿退卷方向，在所述芯轴的预定的转动行程之后，所述从动件脱离所述输出元件的工作面。
在一些实施方式中，沿退卷方向，在所述芯轴的预定的转动行程之后，所述从动件可以继续靠置在输出元件的工作面上，此时，所述工作面的相应的区段以减小的程度挤压所述从动件，使得所述抑制部件离开抑制所述活动部件的位置。
在安全带卷收器在机动车中的安装状态下，所述芯轴可以具有静止位置，在所述静止位置上，具有安全带卷收器和织带的安全带装置是未被使用的。
在一些实施方式中，所述减速机构可以构成为摆动齿轮机构，所述摆动齿轮机构包括与芯轴抗转动地连接的作为输入元件的偏心轮、作为输出元件的摆动齿轮和静止的齿圈，所述摆动齿轮通过所述偏心轮相对于所述芯轴的转动轴线偏心地支承，并且所述摆动齿轮与所述齿圈啮合。在另外一些实施方式中，所述减速机构可以构成为圆柱齿轮机构或者行星齿轮机构。
在一些实施方式中，所述抑制机构可以具有触发盘，所述触发盘可以具有凹槽，所述触发盘可转动地支承，并且所述触发盘能在克服阻力的情况下被转动。所述阻力例如可以是摩擦力、弹簧力或者电磁力。
在一些实施方式中，所述输出元件可以具有传动凸起，所述传动凸起伸入到所述凹槽中，并且能在所述凹槽的两个端部之间自由地运动。
在一些实施方式中，所述传动凸起可以构成为传动销。
在一些实施方式中，所述传动凸起可以设置在凸缘的轴向的端面上。
在一些实施方式中，所述触发盘可以具有工作面，所述触发盘的工作面可以构造成用于，在从动件与所述输出元件的工作面脱离时，支撑所述从动件。
在一些实施方式中，所述从动件可以具有止动元件，所述触发盘的工作面可以具有凹部，所述触发盘的工作面和所述止动元件可以构造成：
-沿退卷方向在所述芯轴的预定的转动行程之后并且在所述芯轴的预定的最大退卷位置之前，所述从动件在所述凹部之外支撑在所述触发盘的工作面上，所述止动元件不起作用；并且
-在所述芯轴的最大退卷位置上，所述从动件支撑在所述凹部中，所述止动元件导致所述锁止机构的激活。
在一些实施方式中，所述止动元件可以构成为棘爪。
在一些实施方式中，所述从动件可以构成为可枢转地支承的从动件。在另外一些实施方式中，所述从动件可以构成为能线性运动的从动件。
在一些实施方式中，所述从动件可以具有支撑臂，所述支撑臂构造成用于靠置在所述输出元件的工作面上。
在一些实施方式中，在所述芯轴的预定的静止位置上，所述支撑臂在与所述输出元件的工作面的沿退卷方向位于前面的端部邻近的区域中靠置在所述输出元件的工作面上。因此可以使得工作面被紧凑地设计。
在一些实施方式中，所述从动件可以具有支撑臂，所述支撑臂构造成用于靠置在所述输出元件的工作面上和用于靠置在所述触发盘的工作面上。
在另外一些实施方式中，所述从动件可以具有两个支撑臂，其中一个支撑臂构造成用于靠置在所述输出元件的工作面上，并且另一个支撑臂构造成用于靠置在所述触发盘的工作面上。
在一些实施方式中，所述抑制部件可以是所述从动件的一体的弹性的组成部分，或者所述抑制部件可以构成为所述复位弹簧的悬臂部分。
在一些实施方式中，所述安全带卷收器可以具有侧盖，所述侧盖固定在所述支架上。
在一些实施方式中，所述侧盖可以具有底面和从所述底面伸出的突起，所述输入元件可转动地支承在所述突起上。
在一些实施方式中，所述输入元件可以具有第一卡扣元件，并且所述突起可以具有第二卡扣元件，所述第一卡扣元件和所述第二卡扣元件形成卡扣连接，使得所述输入元件和所述突起在轴向方向上相互固定。
在一些实施方式中，所述输入元件可以具有法兰面，所述输出元件在轴向方向上支撑在所述输入元件的法兰面上。
在一些实施方式中，所述触发盘可转动地支承在所述突起上。
在一些实施方式中，所述触发盘可以被压靠在所述底面上，使得所述触发盘能在克服摩擦力的情况下相对于所述底面转动。
在一些实施方式中，所述触发盘可以通过多个簧片被压靠在所述底面上。在另外一些实施方式中，所述触发盘可以通过弹簧卡圈被压靠在所述底面上。在另外一些实施方式中，所述触发盘可以在外圆周上被摩擦元件压靠，由此能在触发盘与摩擦元件 之间产生摩擦力。
在一些实施方式中，通过所述输入元件的法兰面和所述卡扣连接，所述输出元件将所述触发盘压靠在所述底面上。
在一些实施方式中，所述突起可以具有与所述底面隔开的第一轴段和与所述底面邻接的第二轴段，所述触发盘可转动地套装在所述第二轴段上，所述第一卡扣元件围绕所述第一轴段，所述第二卡扣元件设置在所述突起的端部上。
在一些实施方式中，所述齿圈可以与所述侧盖抗转动地连接，例如两者可以通过注塑被一体地成型。
在本发明的意义中，“两个部件抗转动地连接”意味着，它们不能绕转动轴线彼此相对地转动，并且它们可以是沿着转动轴线能相对移动的或者不能相对移动的。“两个部件抗转动地连接”可以包括、但不限于：两个部件彼此一体地构成；齿轮套装在具有非圆形横截面的轴上并且能在轴上移动；两个部件固定地连接。在此，“两个部件抗转动地连接”应包括如下情况：由于存在制造误差或者存在无意的间隙，两个部件能微小地彼此相对地转动。
在本发明的意义中，“两个部件可转动地连接”意味着，它们能绕转动轴线彼此相对地转动。
在一些实施方式中，所述安全带卷收器可以具有以下技术特征的组合：
所述减速机构构成为摆动齿轮机构，所述摆动齿轮机构包括与芯轴抗转动地连接的作为输入元件的偏心轮、作为输出元件的摆动齿轮和齿圈，所述摆动齿轮通过所述偏心轮相对于所述芯轴的转动轴线偏心地支承，并且所述摆动齿轮与所述齿圈啮合，所述摆动齿轮具有集成的扇形的凸缘，所述凸缘的外周面构成所述工作面，所述摆动齿轮具有传动凸起，所述偏心轮具有第一卡扣元件，所述偏心轮具有法兰面，所述摆动齿轮在轴向方向上支撑在所述偏心轮的法兰面上；
所述抑制机构具有触发盘，所述触发盘具有凹槽，所述传动凸起伸入到所述凹槽中，并且能在所述凹槽的两个端部之间自由地运动，所述触发盘具有工作面，所述触发盘的工作面构造成用于，在从动件与摆动齿轮的工作面脱离时，支撑所述从动件；并且
所述安全带卷收器具有侧盖，所述侧盖固定在所述支架上，所述齿圈与所述侧盖抗转动地连接，所述侧盖具有底面和从所述底面伸出的突起，所述突起具有与所述底面隔开的第一轴段和与所述底面邻接的第二轴段以及设置在所述突起的端部上的第 二卡扣元件；
其中，所述触发盘可转动地套装在所述第二轴段上，所述第一卡扣元件围绕所述第一轴段；
其中，所述第一卡扣元件和所述第二卡扣元件形成卡扣连接，使得所述偏心轮和所述突起在轴向方向上相互固定，通过所述偏心轮的法兰面和所述卡扣连接，所述摆动齿轮将所述触发盘压靠在所述底面上，使得所述触发盘能在克服摩擦力的情况下相对于所述底面被转动。
在一些实施方式中，所述最大退卷位置可以是一个芯轴位置，在安全带卷收器在机动车中的安装状态下，在所述芯轴位置上被拉出的织带长度大于或等于在安全带装置的按规定的佩戴状态下被拉出的织带长度。这对于在机动车中安置有儿童座椅的情况可以是特别有利的，其中，在约束坐在儿童座椅上的儿童的情况下可以实现织带在拉出方向上的自动的锁止。
具有这种安全带卷收器的安全带装置在机动车中的未使用的状态下，车感装置的车感功能被抑制机构抑制，因此可以实现降噪。当安全带装置被佩戴时，车感装置可以恢复车感功能，因此可以符合需要地提供车感功能。
在一些实施方式中，所述车感装置可以包括底座、能在所述底座中活动的感应元件和活动地支承在所述底座中的止动元件，所述感应元件在所述底座中能占据静止的初始位置并且能响应于机动车运行状态地运动，所述止动元件能占据静止的初始位置并且能被所述感应元件抬起，所述止动元件构造成用于，在从其静止位置抬起到预定位置时，导致所述锁止机构的激活。在一些实施方式中，所述车感装置的止动元件可以构成为棘爪。
在一些实施方式中，所述感应元件可以构成为感应钢球，所述底座可以具有凹窝，所述感应钢球能响应于机动车运行状态地在所述凹窝中滚动。
在一些实施方式中，所述感应装置的止动元件可以构成为爪式元件。在一些实施方式中，该爪式元件可枢转地支承在所述底座中。在一些实施方式中，所述爪式元件可以盖住所述凹窝和接纳在所述凹窝中的感应钢球。在另外一些实施方式中，所述感应装置的止动元件可以构成为能线性运动的止动元件。
在一些实施方式中，所述锁止机构可以包括触发锁止机构和主锁止机构，其中，触发锁止机构具有较小的工作载荷，因此可以较弱地设计，主锁止机构具有较大的工作载荷，因此需要较结实地设计。
在一些实施方式中，所述锁止机构可以包括锁止盘，所述锁止盘的止动能导致所述芯轴在退卷方向上的锁止。
在一些实施方式中，所述安全带卷收器可以具有以下技术特征的组合：
所述锁止机构包括锁止爪，所述锁止盘具有锁止槽，所述锁止槽具有径向内部的端部和径向外部的端部，所述锁止爪被所述锁止槽引导并且在朝锁止槽的径向内部的端部的方向上被偏压；
所述支架具有齿部；
所述芯轴具有空缺部，所述空缺部接纳所述锁止爪；
其中，所述锁止爪在朝锁止槽的径向外部的端部的方向上运动时能与所述齿部啮合，使得所述锁止爪被止动并且因此所述芯轴在退卷方向上被锁止。
按本发明的第二方面，建议一种用于机动车的安全带装置，所述安全带装置包括织带和根据本发明第一方面的用于机动车的安全带卷收器，其中，所述安全带卷收器的芯轴是所述织带的卷轴。
在此需要指出的是，上面提及的各技术特征和下面将要提及的各技术特征可以任意地相互组合，只要它们不是相互矛盾的。所有在技术上可行的特征组合都是在本申请中明确地包含的技术内容。
附图说明
下面借助于具体实施方式参照附图更详细地说明本发明。示意性的附图简要说明如下：
图1是按本发明的一种实施方式的安全带卷收器的分解图；
图2是按图1的安全带卷收器的侧盖的沿轴向方向观察的部分省略的视图；
图3是按图1的安全带卷收器的多个部件在组装状态下的部分省略的纵剖视图；并且
图4至图9是按图1的安全带卷收器的抑制机构在不同状态下的沿轴向方向观察的示意图。
具体实施方式
首先参照图1～3说明按本发明的一种实施方式的安全带卷收器。在图1中，织带12用虚线示意性地表示，芯轴1可转动地支承在支架4中。用于接纳卷簧的端盖13 可以固定在支架4的一个端面上，所述卷簧可以在卷收方向上偏压芯轴1，使得织带12在没有外部拉力的情况下被卷绕在芯轴1上，在外部拉力能克服卷簧的弹簧力的情况下，织带12从芯轴1拉出。
安全带卷收器具有锁止机构100。在此，芯轴1具有空缺部1.1，所述空缺部接纳锁止爪3。支架4具有齿部4.1。锁止爪3能与齿部4.1共同作用。空缺部1.1、齿部4.1、锁止爪3以及将要说明的锁止盘2是锁止机构100的组成部分。所述锁止盘2具有锁止槽2.1，所述锁止槽2.1具有径向内部的端部和径向外部的端部。所述锁止爪3以销元件3.1插入到锁止槽2.1中并且因此被所述锁止槽2.1引导。所述锁止爪3在朝锁止槽的径向内部的端部的方向上被未示出的弹簧元件偏压。所述锁止盘2可转动地套装在芯轴1的轴突上。在锁止盘2未被止动的情况下，锁止爪3处于径向内部的位置上并且与齿部4.1脱离，所述芯轴1可以经由锁止爪3带动锁止盘2一起转动。在锁止盘2被止动的情况下，如果芯轴1在退卷方向上转动，则锁止爪3被迫在朝锁止槽2.1的径向外部的端部的方向上运动，直至锁止爪3与齿部4.1接合，于是锁止爪3连同芯轴1一起被止动。在锁止盘2被止动并且锁止爪3与齿部4.1接合的情况下，如果芯轴1在卷收方向上转动，则锁止爪3被迫在朝锁止槽2.1的径向内部的端部的方向上运动，于是锁止爪3与齿部4.1又脱离接合，因此芯轴1在卷收方向上的转动不被限制。锁止盘2可以在圆周上具有棘齿2.2，或者说，锁止盘2可以构成为棘轮。止动元件可以与棘齿2.2接合，并且从而引起锁止盘2的止动。
安全带卷收器具有车感装置6，所述车感装置构造成用于感应机动车的安全相关的工作状态，例如可以用于感应机动车的加速度、减速度和倾斜角度。例如在机动车的减速度达到或超过阈值时，所述车感装置操纵止动元件，使得止动元件与锁止盘2的棘齿2.2接合，从而激活锁止装置的锁止功能。在图1所示的实施方式中，所述车感装置6包括底座6.2、能在所述底座中活动的感应元件6.1和活动地支承在所述底座中的止动元件6.3。所述感应元件6.1在所述底座6.2中能占据静止的初始位置并且能响应于机动车运行状态地运动。所述止动元件6.3能占据静止的初始位置并且能被所述感应元件6.1抬起，所述止动元件6.3构造成用于，在从其静止位置抬起到预定位置时，导致所述锁止机构100的激活。在此，所述感应元件6.1可以构成为感应钢球，所述底座6.2可以具有凹窝，所述感应钢球能响应于机动车运行状态地在所述凹窝中滚动。所述止动元件6.3可以构成为爪式元件，该爪式元件可枢转地支承在所述底座6.2中，所述爪式元件盖住所述凹窝和接纳在所述凹窝中的感应钢球。在感应钢球滚 动的过程中，所述止动元件6.3能与滚动钢球在凹窝中的位置相关地被抬起。在止动元件6.3被抬起到预定位置上时，止动元件6.3与棘齿2.2接合。在此，止动元件6.3既可以视为锁止机构100的组成部分，也可以视为车感装置6的组成部分。
在一种替代的实施方式中，也可以设置两个单独的部件，其中一个是属于锁止机构100的止动元件，另一个是属于车感装置6的抬起元件，该抬起元件能够操纵该止动元件。
安全带卷收器可以包括侧盖5，该侧盖可以视为安全带卷收器的壳体部件，安全带卷收器的部分零件可以被侧盖5遮盖和保护。所述侧盖5可以固定在所述支架4上。在如图1所述的实施方式中，车感装置6、锁止装置100和抑制机构200可以被侧盖5遮盖，其中，车感装置6安装在侧盖5中的区段5.5中。
安全带卷收器具有抑制机构200，该抑制机构可以在需要时抑制车感装置的车感功能，实现降噪，并且可以在需要时释放车感装置的车感功能，实现机动车的安全相关的工作状态的感应，并且在必要时激活锁止装置的锁止功能。
所述抑制机构200可以包括减速机构，所述减速机构具有输入元件7和输出元件8。所述减速机构可以构成为摆动齿轮机构，其中，所述输入元件7可以构成为偏心轮并且与芯轴1抗转动地连接，所述输出元件8可以构成为摆动齿轮并且具有集成的扇形的凸缘8.1，所述凸缘的外周面构成工作面，在侧盖5中可以设有静止的齿圈5.1。所述摆动齿轮通过所述偏心轮相对于所述芯轴1的转动轴线偏心地支承，并且所述摆动齿轮与所述齿圈5.1啮合。
在如图1所示的实施方式中，所述抑制机构200具有触发盘9，所述触发盘具有凹槽9.1，所述触发盘可转动地支承。所述输出元件8具有传动凸起8.2，所述传动凸起伸入到所述凹槽9.1中，并且能在所述凹槽9.1的两个端部9.3、9.4之间自由地运动。所述触发盘9具有工作面。所述触发盘9的工作面具有凹部9.2。
所述抑制机构200包括从动件10、与所述从动件10运动耦合的抑制部件11.1以及复位弹簧11，所述复位弹簧11在使所述抑制部件11.1离开止动元件6.3的方向上偏压所述从动件10。所述从动件10可以构成为可枢转地支承的从动件。所述抑制部件可以构成为所述复位弹簧11的悬臂部分。所述悬臂部分可以与从动件10一起运动。所述从动件10具有支撑臂10.1和止动元件10.2，该止动元件可以构成为棘爪。在从动件10以支撑臂10.1靠置在输出元件8的工作面上时，所述抑制部件11.1挤压车感装置6的止动元件6.3，使得止动元件6.3和感应元件6.1不能相对于底座6.2运动， 从而可以降低或者甚至消除车感装置由于零件碰撞引起的噪音。在支撑臂10.1与输出元件8的工作面脱离时，所述抑制部件11.1在复位弹簧11的作用下在从动件10的带动下离开止动元件6.3，并且从而释放车感装置的车感功能。所述从动件10的支撑臂10.1可以在所述输出元件8的工作面上靠置和在所述触发盘9的工作面上靠置，所述靠置可以在时间上彼此错开地实现，或者先后地且连续地实现，或者部分重叠地实现。
在图2和图3中省略了侧盖5的区段5.5。如由图2和图3可见，所述侧盖5具有底面5.4和从所述底面伸出的突起。所述输入元件7具有法兰面7.2，所述输出元件8在轴向方向上支撑在所述输入元件7的法兰面7.2上。所述输入元件7具有第一卡扣元件7.1并且可转动地支承在所述突起上。所述突起具有与所述底面5.4隔开的第一轴段5.2和与所述底面5.4邻接的第二轴段5.3以及设置在所述突起的端部上的第二卡扣元件5.2.1。由于第一轴段相对于第二轴段减小的直径，在突起上形成法兰面5.2.2。所述第一卡扣元件7.1和所述第二卡扣元件5.2.1形成卡扣连接，使得所述输入元件7和所述突起在轴向方向上相互固定。所述第一卡扣元件7.1围绕所述第一轴段5.2。通过所述输入元件7的法兰面7.2和所述卡扣连接，所述输出元件8将所述触发盘9压靠在所述底面5.4上，使得所述触发盘9能在克服摩擦力的情况下相对于所述底面5.4转动。
下面借助于图4～9说明按本发明的安全带卷收器的抑制机构200的工作过程。
在图4所示的工作状态中，芯轴1处于预定的静止位置上。在具有安全带卷收器和织带12的安全带装置在机动车中的安装状态下，在安全带装置未被佩戴时，织带12在安全带卷收器的卷簧的弹簧力的作用下最大程度地卷收在芯轴1上，所述芯轴1处于预定的静止位置上。在图1所述的状态中，从动件10的支撑臂10.1靠置在输出元件8的凸缘8.1的工作面上并且接近该工作面的沿退卷方向位于前面的端部8.1.1，传动凸起8.2挡靠在凹槽9.1的端部9.3上，抑制部件11.1挤压车感装置6的止动元件6.3，使得车感装置6被抑制，从而可以实现降噪。
从图4所示状态出发，芯轴1沿退卷方向转动，输出元件8以预定的减速比沿与退卷方向对应的第一方向D1转动，到达图5所示状态。与此相应地，织带12被拉出一定的长度。输出元件8的凸缘8.1的工作面继续支撑从动件10的支撑臂10.1，抑制部件11.1继续挤压车感装置6的止动元件6.3，从动件10的支撑臂10.1接近输出元件8的凸缘8.1的工作面的沿退卷方向或者说第一方向位于后面的端部8.1.2。
从图5所示状态出发，芯轴1继续沿退卷方向转动，输出元件8以预定的减速比 沿第一方向D1转动，并且到达如图6所示的状态，其中，输出元件8的凸缘8.1的工作面刚刚以其端部8.1.2离开支撑臂10.1，并且支撑臂10.1在复位弹簧11的作用下靠置在触发盘9的工作面上。抑制部件11.1在从动件10的带动下离开车感装置6的止动元件6.3，于是车感装置6的车感功能恢复。
芯轴1从图4所示状态到图6所示状态在退卷方向上经历了第一行程，织带12与芯轴1的第一行程相对应地被拉出第一长度。触发盘9在静摩擦力的作用下保持不动，传动凸起8.2在凹槽9.1中自由运动。
从图6所示状态出发，芯轴1继续沿退卷方向转动，输出元件8以预定的减速比沿第一方向D1转动，并且到达如图7所示状态，其中，支撑臂10.1继续靠置在触发盘9的工作面上，车感装置6继续有效，传动凸起8.2挡靠在凹槽9.1的端部9.4上。
从图7所示状态出发，芯轴1继续沿退卷方向转动，触发盘9被传动凸起8.2沿第一方向D1带动，直至到达如图8所示状态，其中，支撑臂10.1在复位弹簧11的作用下进入触发盘9的工作面的凹部9.2中，此时，止动元件10.2与锁止盘2的棘齿2.2接合，因此激活锁止装置100，使得芯轴1不能继续沿退卷方向转动，芯轴1到达最大退卷位置，织带12到达最大拉出长度。在安全带装置在机动车中被乘员按规定地佩戴时，芯轴1的位置可以对应于图4所示状态与图8所示状态之间的状态，尤其是在儿童座椅的情况下可以对应于图8所示状态。
从图8所示状态出发，在解除安全带装置的佩戴时，芯轴1在卷簧的复位力的作用下沿卷收方向持续地转动，输出元件8以预定的减速比在与第一方向D1相反的第二方向D2上转动，传动凸起8.2离开凹槽9.1的端部9.4，在凹槽9.1中自由运动，直至挡靠在凹槽9.1的端部9.3上，锁止盘9保持不动。然后，传动凸起8.2在第二方向D2上带动锁止盘9，使得支撑臂10.1从凹部9.2脱离。当芯轴1沿卷收方向转动到图9所示状态时，支撑臂10.1脱离锁止盘9的工作面，支撑臂10.1到达输出元件8的工作面的端部8.1.2。输出元件8的凸缘8.2的工作面再次支撑从动件10的支撑臂10.1，使得抑制部件11.1重新挤压车感装置6的止动元件6.3。在卷簧的复位力的作用下，芯轴1可以沿卷收方向从图9所示状态返回到如图4所示的预定的静止位置上。
最后要指出的是，具体实施方式仅仅用于理解本发明，而不对本发明的保护范围构成限制。对于本领域技术人员来说，在具体实施方式的基础上可以做出修改，这些修改都不脱离本发明的保护范围。

Claims (10)

  1. 一种用于机动车的安全带卷收器，其包括：
    支架(4)；
    芯轴(1)，所述芯轴可转动地支承在支架(4)中并且在卷收方向上被偏压；
    锁止机构(100)，所述锁止机构构造成用于，在激活状态中在退卷方向上锁止所述芯轴(1)并且在去活状态中释放所述芯轴(1)；
    车感装置(6)，所述车感装置构造成用于感应机动车的安全相关的工作状态，所述车感装置具有活动部件；和
    抑制机构(200)，所述抑制机构包括减速机构，所述减速机构具有输入元件(7)和输出元件(8)，所述输入元件与芯轴(1)抗转动地连接；
    其特征在于，
    所述输出元件(8)具有工作面；
    所述抑制机构(200)包括从动件(10)、与所述从动件(10)运动耦合的抑制部件(11.1)以及复位弹簧(11)，所述从动件(10)能被所述输出元件(8)的工作面操纵，所述复位弹簧(11)在使所述抑制部件(11.1)释放所述活动部件的方向上偏压所述从动件(10)；
    其中，在所述芯轴(1)的预定的静止位置上，所述输出元件(8)的工作面操纵所述从动件(10)，使得所述抑制部件(11.1)处于抑制所述活动部件的位置上；
    其中，沿退卷方向，在所述芯轴(1)的从所述静止位置起的预定的转动行程之后，所述抑制部件(11.1)离开抑制所述活动部件的位置。
  2. 根据权利要求1所述的用于机动车的安全带卷收器，其特征在于，所述输出元件(8)具有集成的凸缘(8.1)，所述凸缘的外周面构成所述工作面；和/或
    沿退卷方向，在所述芯轴(1)的预定的转动行程之后，所述从动件(10)脱离所述输出元件(8)的工作面；和/或
    所述减速机构构成为摆动齿轮机构，所述摆动齿轮机构包括与芯轴(1)抗转动地连接的作为输入元件(7)的偏心轮、作为输出元件(8)的摆动齿轮和静止的齿圈(5.1)，所述摆动齿轮通过所述偏心轮相对于所述芯轴(1)的转动轴线偏心地支承，并且所述摆动齿轮与所述齿圈(5.1)啮合；和/或
    所述抑制机构(200)具有触发盘(9)，所述触发盘具有凹槽(9.1)，所述触发盘可转动地支承，并且所述触发盘能在克服阻力的情况下被转动；和/或
    所述输出元件(8)具有传动凸起(8.2)，所述传动凸起伸入到所述凹槽(9.1)中，并且能在所述凹槽(9.1)的两个端部(9.3、9.4)之间自由地运动；和/或
    所述触发盘(9)具有工作面，所述触发盘的工作面构造成用于，在从动件(10)与所述输出元件(8)的工作面脱离时，支撑所述从动件(10)。
  3. 根据权利要求2所述的用于机动车的安全带卷收器，其特征在于，所述从动件(10)具有止动元件(10.2)，所述触发盘(9)的工作面具有凹部(9.2)，所述触发盘(9)的工作面和所述止动元件(10.2)构造成：
    -沿退卷方向在所述芯轴(1)的预定的转动行程之后并且在所述芯轴(1)的预定的最大退卷位置之前，所述从动件(10)在所述凹部(9.2)之外支撑在所述触发盘(9)的工作面上，所述止动元件(10.2)不起作用；并且
    -在所述芯轴(1)的最大退卷位置上，所述从动件(10)支撑在所述凹部(9.2)中，所述止动元件(10.2)导致所述锁止机构(100)的激活；
    和/或所述止动元件(10.2)构成为棘爪；
    和/或所述从动件(10)构成为可枢转地支承的从动件；
    和/或所述从动件(10)具有支撑臂(10.1)，所述支撑臂构造成用于靠置在所述输出元件(8)的工作面上；
    和/或所述从动件(10)具有支撑臂(10.1)，所述支撑臂构造成用于靠置在所述输出元件(8)的工作面上和用于靠置在所述触发盘(9)的工作面上；
    和/或在所述芯轴的预定的静止位置上，所述支撑臂(10.1)在与所述输出元件(8)的工作面的沿退卷方向位于前面的端部(8.1.1)邻近的区域中靠置在所述输出元件(8)的工作面上。
  4. 根据权利要求1至3中任一项所述的用于机动车的安全带卷收器，其特征在于，所述抑制部件是所述从动件(10)的一体的弹性的组成部分，或者所述抑制部件构成为所述复位弹簧(11)的悬臂部分；和/或
    所述安全带卷收器具有侧盖(5)，所述侧盖固定在所述支架(4)上；
    优选地，所述侧盖(5)具有底面(5.4)和从所述底面伸出的突起，所述输入元件(7)可转动地支承在所述突起上；
    优选地，所述输入元件(7)具有第一卡扣元件(7.1)，并且所述突起具有第二卡扣元件(5.2.1)，所述第一卡扣元件和所述第二卡扣元件形成卡扣连接，使得所述输入元件(7)和所述突起在轴向方向上相互固定。
  5. 根据权利要求1至4中任一项所述的用于机动车的安全带卷收器，其特征在于，所述输入元件(7)具有法兰面(7.2)，所述输出元件(8)在轴向方向上支撑在所述输入元件(7)的法兰面(7.2)上；和/或
    所述安全带卷收器具有侧盖(5)，所述侧盖固定在所述支架(4)上，所述侧盖(5)具有底面(5.4)和从所述底面伸出的突起，所述触发盘(9)可转动地支承在所述突起上；和/或
    所述触发盘(9)被压靠在所述底面(5.4)上，使得所述触发盘(9)能在克服摩擦力的情况下相对于所述底面(5.4)转动；和/或
    所述输入元件(7)具有第一卡扣元件(7.1)，并且所述突起具有第二卡扣元件(5.2.1)，所述第一卡扣元件和所述第二卡扣元件形成卡扣连接，使得所述输入元件(7)和所述突起在轴向方向上相互固定；和/或
    所述输入元件(7)具有法兰面(7.2)，所述输出元件(8)在轴向方向上支撑在所述输入元件(7)的法兰面(7.2)上；和/或
    通过所述输入元件(7)的法兰面(7.2)和所述卡扣连接，所述输出元件(8)将所述触发盘(9)压靠在所述底面(5.4)上；和/或
    所述突起具有与所述底面隔开的第一轴段(5.2)和与所述底面邻接的第二轴段(5.3)，所述触发盘(9)可转动地套装在所述第二轴段(5.3)上，所述第一卡扣元件(7.1)围绕所述第一轴段(5.2)，所述第二卡扣元件(5.2.1)设置在所述突起的端部上；和/或
    所述安全带卷收器具有侧盖(5)，所述侧盖固定在所述支架(4)上，所述齿圈(5.1)与所述侧盖(5)抗转动地连接。
  6. 根据权利要求1至5中任一项所述的用于机动车的安全带卷收器，其特征在于，
    所述减速机构构成为摆动齿轮机构，所述摆动齿轮机构包括与芯轴(1)抗转动地连接的作为输入元件(7)的偏心轮、作为输出元件(8)的摆动齿轮和齿圈(5.1)，所述摆动齿轮通过所述偏心轮相对于所述芯轴(1)的转动轴线偏心地支承，并且所述摆动齿轮与所述齿圈(5.1)啮合，所述摆动齿轮具有集成的扇形的凸缘(8.1)，所述凸缘的外周面构成所述工作面，所述摆动齿轮具有传动凸起(8.2)，所述偏心轮具有第一卡扣元件(7.1)，所述偏心轮具有法兰面(7.2)，所述摆动齿轮在轴向方向上支撑在所述偏心轮的法兰面上；
    所述抑制机构(200)具有触发盘(9)，所述触发盘具有凹槽(9.1)，所述传动凸起伸入到所述凹槽(9.1)中，并且能在所述凹槽的两个端部(9.3、9.4)之间自由地运动，所述触发盘(9)具有工作面，所述触发盘的工作面构造成用于，在从动件(10)与摆动齿轮的工作面脱离时，支撑所述从动件(10)；并且
    所述安全带卷收器具有侧盖(5)，所述侧盖固定在所述支架(4)上，所述齿圈(5.1)与所述侧盖(5)抗转动地连接，所述侧盖(5)具有底面(5.4)和从所述底面伸出的突起，所述突起具有与所述底面隔开的第一轴段(5.2)和与所述底面邻接的第二轴段(5.3)以及设置在所述突起的端部上的第二卡扣元件(5.2.1)；
    其中，所述触发盘(9)可转动地套装在所述第二轴段(5.3)上，所述第一卡扣元件(7.1)围绕所述第一轴段(5.2)；
    其中，所述第一卡扣元件(7.1)和所述第二卡扣元件(5.2.1)形成卡扣连接，使得所述偏心轮和所述突起在轴向方向上相互固定，通过所述偏心轮的法兰面(7.2)和所述卡扣连接，所述摆动齿轮将所述触发盘(9)压靠在所述底面(5.4)上，使得所述触发盘能在克服摩擦力的情况下相对于所述底面(5.4)被转动。
  7. 根据权利要求1至6中任一项所述的用于机动车的安全带卷收器，其特征在于，所述车感装置(6)包括底座(6.2)、能在所述底座中活动的感应元件(6.1)和活动地支承在所述底座中的止动元件(6.3)，所述感应元件(6.1)在所述底座(6.2)中能占据静止的初始位置并且能响应于机动车运行状态地运动，所述止动元件(6.3)能占据静止的初始位置并且能被所述感应元件(6.1)抬起，所述止动元件(6.3)构造成用于，在从其静止位置抬起到预定位置时，导致所述锁止机构(100)的激活；
    优选地，所述感应元件(6.1)构成为感应钢球，所述底座(6.2)具有凹窝，所述感应钢球能响应于机动车运行状态地在所述凹窝中滚动；
    优选地，所述止动元件(6.3)构成为爪式元件，该爪式元件可枢转地支承在所述底座(6.2)中，所述爪式元件盖住所述凹窝和接纳在所述凹窝中的感应钢球。
  8. 根据权利要求1至7中任一项所述的用于机动车的安全带卷收器，其特征在于，所述锁止机构(100)包括锁止盘(2)，所述锁止盘的止动能导致所述芯轴(1)在退卷方向上的锁止。
  9. 根据权利要求8所述的用于机动车的安全带卷收器，其特征在于，
    所述锁止机构(100)包括锁止爪(3)，所述锁止盘(2)具有锁止槽(2.1)，所述锁止槽(2.1)具有径向内部的端部和径向外部的端部，所述锁止爪(3)被所述锁止槽(2.1)引导并且在朝锁止槽的径向内部的端部的方向上被偏压；
    所述支架(4)具有齿部(4.1)；
    所述芯轴(1)具有空缺部(1.1)，所述空缺部接纳所述锁止爪(3)；
    其中，所述锁止爪(3)在朝锁止槽的径向外部的端部的方向上运动时能与所述齿部(4.1)啮合，使得所述锁止爪(3)被止动并且因此所述芯轴(1)在退卷方向上被锁止。
  10. 一种用于机动车的安全带装置，所述安全带装置包括织带，其特征在于，所述安全带装置包括根据权利要求1至9中任一项所述的用于机动车的安全带卷收器，其中，所述安全带卷收器的芯轴(1)是所述织带的卷轴。
PCT/CN2020/082446 2019-04-30 2020-03-31 用于机动车的安全带卷收器和安全带装置 WO2020220911A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910358014.3A CN110027502B (zh) 2019-04-30 2019-04-30 用于机动车的安全带卷收器和安全带装置
CN201910358014.3 2019-04-30

Publications (1)

Publication Number Publication Date
WO2020220911A1 true WO2020220911A1 (zh) 2020-11-05

Family

ID=67240941

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/082446 WO2020220911A1 (zh) 2019-04-30 2020-03-31 用于机动车的安全带卷收器和安全带装置

Country Status (2)

Country Link
CN (1) CN110027502B (zh)
WO (1) WO2020220911A1 (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110027502B (zh) * 2019-04-30 2024-06-18 延锋汽车智能安全系统有限责任公司 用于机动车的安全带卷收器和安全带装置
CN110775015A (zh) * 2019-11-05 2020-02-11 安徽江淮汽车集团股份有限公司 一种安全带卷收器
CN111688630A (zh) * 2020-07-16 2020-09-22 延锋汽车智能安全系统有限责任公司 用于安全带卷收器的调角盘组件和安全带卷收器
CN215204794U (zh) 2021-06-11 2021-12-17 延锋国际座椅系统有限公司 一种用于安全带卷收器的控制组件以及汽车座椅
CN115384445B (zh) * 2022-09-02 2023-11-21 浙江极氪智能科技有限公司 座椅安全带及车辆
CN118025066A (zh) * 2022-11-02 2024-05-14 延锋汽车智能安全系统有限责任公司 一种电子车感式安全带卷收器总成

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2555530A1 (fr) * 1983-11-29 1985-05-31 Allied Eng Enrouleur de ceinture de securite a abaisseur
US4749142A (en) * 1985-12-27 1988-06-07 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Webbing retractor
US5904371A (en) * 1998-02-19 1999-05-18 Breed Automotive Technology, Inc. Energy management safety belt retractor with mode shifting mechanism
CN1754724A (zh) * 2004-09-14 2006-04-05 关键安全体系股份有限公司 座椅系带牵引器
CN104554134A (zh) * 2013-10-09 2015-04-29 比亚迪股份有限公司 一种安全带装置及安全带卷收器
CN106364449A (zh) * 2016-09-29 2017-02-01 延锋百利得（上海）汽车安全系统有限公司 一种汽车安全带卷收器
CN109177916A (zh) * 2018-09-14 2019-01-11 延锋汽车智能安全系统有限责任公司 安全带卷收器和安全带组件
CN109177915A (zh) * 2018-09-14 2019-01-11 延锋汽车智能安全系统有限责任公司 安全带卷收器和安全带组件
CN110027502A (zh) * 2019-04-30 2019-07-19 延锋汽车智能安全系统有限责任公司 用于机动车的安全带卷收器和安全带装置
CN210116475U (zh) * 2019-04-30 2020-02-28 延锋汽车智能安全系统有限责任公司 用于机动车的安全带卷收器和安全带装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1279575B1 (en) * 2001-07-18 2006-09-13 Key Safety Systems, Inc. Retractor
CN2728856Y (zh) * 2004-09-17 2005-09-28 叶坚信 一种安全带卷收器
KR100817138B1 (ko) * 2006-02-28 2008-03-27 델파이코리아 주식회사 비클 센싱부를 이용한 록 캔슬러를 구비한 차량용시트벨트의 리트랙터
CN107757548A (zh) * 2017-11-15 2018-03-06 重庆乾享汽车安全装备研发有限公司 车辆及其卷收器

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2555530A1 (fr) * 1983-11-29 1985-05-31 Allied Eng Enrouleur de ceinture de securite a abaisseur
US4749142A (en) * 1985-12-27 1988-06-07 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Webbing retractor
US5904371A (en) * 1998-02-19 1999-05-18 Breed Automotive Technology, Inc. Energy management safety belt retractor with mode shifting mechanism
CN1754724A (zh) * 2004-09-14 2006-04-05 关键安全体系股份有限公司 座椅系带牵引器
CN104554134A (zh) * 2013-10-09 2015-04-29 比亚迪股份有限公司 一种安全带装置及安全带卷收器
CN106364449A (zh) * 2016-09-29 2017-02-01 延锋百利得（上海）汽车安全系统有限公司 一种汽车安全带卷收器
CN109177916A (zh) * 2018-09-14 2019-01-11 延锋汽车智能安全系统有限责任公司 安全带卷收器和安全带组件
CN109177915A (zh) * 2018-09-14 2019-01-11 延锋汽车智能安全系统有限责任公司 安全带卷收器和安全带组件
CN110027502A (zh) * 2019-04-30 2019-07-19 延锋汽车智能安全系统有限责任公司 用于机动车的安全带卷收器和安全带装置
CN210116475U (zh) * 2019-04-30 2020-02-28 延锋汽车智能安全系统有限责任公司 用于机动车的安全带卷收器和安全带装置

Also Published As

Publication number Publication date
CN110027502B (zh) 2024-06-18
CN110027502A (zh) 2019-07-19

Similar Documents

Publication Publication Date Title
WO2020220911A1 (zh) 用于机动车的安全带卷收器和安全带装置
EP0298123B1 (en) Seat belt retractor
JP4153430B2 (ja) 複数のレベルで負荷を制限する、シートベルトの巻き取り装置
JP3890608B2 (ja) 力制限器を有するベルト巻き付け器−ベルトテンショナ組合わせ
CN109177916B (zh) 安全带卷收器和安全带组件
JP5714617B2 (ja) ウェビング巻取装置。
JP6041434B2 (ja) シートベルトリトラクタおよびこれを用いたシートベルト装置
JP5706757B2 (ja) シートベルトリトラクタおよびこれを用いたシートベルト装置
WO2020052400A1 (zh) 安全带卷收器和安全带组件
CN110662674B (zh) 安全带卷收器和用于控制安全带卷收器的方法
US7392957B2 (en) Seatbelt retractor system and seatbelt system
JP4976241B2 (ja) シートベルトリトラクタおよびこれを用いたシートベルト装置
JP5511076B2 (ja) シートベルトリトラクタおよびこれを備えるシートベルト装置
JP2009061809A (ja) シートベルトリトラクタおよびこれを用いたシートベルト装置
US5934597A (en) Belt retractor with integrated force limiter
JP2013035444A (ja) シートベルトのリトラクタ装置及びシートベルト装置
US3961761A (en) Storage device for a safety belt
US8662538B2 (en) Belt retractor for a vehicle safety belt
CN110466473B (zh) 座椅安全带用卷收器
CN114761283B (zh) 安全带卷收器
WO2015199050A1 (ja) シートベルトリトラクタ及びシートベルト装置
US20050247811A1 (en) Belt retractor having a pretensioning drive
CN210116475U (zh) 用于机动车的安全带卷收器和安全带装置
JP2003212085A (ja) シートベルト用リトラクター
US20060278748A1 (en) Seat belt retractor

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20798664

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20798664

Country of ref document: EP

Kind code of ref document: A1