CN110027502A - Seat belt retractor and seat belt apparatus for motor vehicle - Google Patents
Seat belt retractor and seat belt apparatus for motor vehicle Download PDFInfo
- Publication number
- CN110027502A CN110027502A CN201910358014.3A CN201910358014A CN110027502A CN 110027502 A CN110027502 A CN 110027502A CN 201910358014 A CN201910358014 A CN 201910358014A CN 110027502 A CN110027502 A CN 110027502A
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- China
- Prior art keywords
- mandrel
- seat belt
- driven member
- working face
- protrusion
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- Legal status (The legal status 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 status listed.)
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
The present invention relates to a kind of seat belt retractors and seat belt apparatus for motor vehicle.Seat belt retractor includes mandrel (1), bracket (4), vehicle induction device (6), lockable mechanism (100) and dampening mechanism (200).The dampening mechanism includes deceleration mechanism, and there are input element (7) and output element (8), the input element anti-rotatably to connect with mandrel for the deceleration mechanism, and the output element has working face.The dampening mechanism includes driven member (10), suppression component (11.1) and reset spring (11).In the scheduled resting position of the mandrel, the working face of the output element manipulates the driven member, so that the suppression component is on the position for inhibiting the movable part.Along debatching direction, after the scheduled rotational travel of the mandrel, the suppression component leaves the position for inhibiting the movable part.This seat belt retractor structure is simple, number of parts is reduced, robustness is higher.
Description
Technical field
The present invention relates to Vehicle Security fields, furl more particularly, to a kind of safety belt for motor vehicle
Device and a kind of seat belt apparatus including such seat belt retractor.
Background technique
In a motor vehicle, seat belt apparatus is the important component in occupant restraint system, especially in traffic accident
In can provide protection for occupant, avoid occupant from coming to harm or injury be reduced to minimum.With automotive engineering
Development and progress, expectation to the riding comfort of motor vehicle and requires higher and higher.Especially making an uproar in motor vehicle interior room
In terms of sound, in motor vehicle operation, quietness as high as possible is desirable.Seat belt retractor can have vehicle sense dress
It sets, the vehicle induction device may include some metal parts, they are when motor vehicle is run since Uneven road etc. can because being known as
It can mutually collide, this causes certain noise.Especially when seat belt retractor is arranged close to the area of human ear in a motor vehicle
When in domain, the noise as caused by vehicle induction device be for occupant it is more interfering, this negatively affects riding comfort.
It is commonly provided with multiple seat belt apparatus in a motor vehicle.However, and not all seat belt apparatus all can be by simultaneously
It uses.For the seat belt apparatus being not used by, the vehicle induction device for inhibiting corresponding seat belt apparatus can be taken steps to, with
Just reduce or even be eliminated the noise as caused by corresponding vehicle induction device.
Patent document CN1754724B illustrates a kind of seat belt retractor, with vehicle induction device and dampening mechanism.In machine
In motor-car, when seat belt apparatus is not used by, the dampening mechanism can inhibit vehicle induction device, so that the part of vehicle induction device
Mutually collision can be avoided by.In the seat belt retractor of this prior art, dampening mechanism has many parts, they are wanted
It is dexterously designed, so as to mutually assemble and cooperate.The number of parts of this seat belt retractor is more, assembling compared with
Complexity, the space that robustness is improved.
Summary of the invention
The object of the present invention is to propose a kind of seat belt retractor for motor vehicle and it is a kind of include such safety
The seat belt apparatus of Webbing retractor, wherein the seat belt retractor has better simply knot while can be realized noise reduction
Structure and less number of parts and be that assembly is friendly.
By the first aspect of the present invention, it is proposed that a kind of seat belt retractor for motor vehicle comprising:
Bracket；
Mandrel, the mandrel are rotatably supported in bracket and are biased in retracting direction；
Lockable mechanism, the lockable mechanism are configured to be used for, in state of activation on debatching direction mandrel described in locking
And the mandrel is discharged in deactivated state；
Vehicle induction device, the vehicle induction device are configured to the safety-related working condition for incuding motor vehicle, the vehicle
Induction device has movable part；With
Dampening mechanism, the dampening mechanism include deceleration mechanism, and the deceleration mechanism has input element and output element,
The input element is anti-rotatably connect with mandrel；
The output element has working face；
The dampening mechanism includes driven member, the suppression component coupled with driven member movement and reset spring, institute
Stating driven member can be manipulated by the working face of the output element, and the reset spring makes the suppression component release activity
Driven member described in the direction biased of component；
Wherein, in the scheduled resting position of the mandrel, the working face of the output element manipulates the driven member,
So that the suppression component is on the position for inhibiting the movable part；
Wherein, described after the scheduled rotational travel from the resting position of the mandrel along debatching direction
Suppression component leaves the position for inhibiting the movable part.
In seat belt retractor according to the invention, such as compared with the prior art above-mentioned, a list can be saved
Only cam disc, therefore it is also possible that make the other component for the dampening mechanism for inhibiting the vehicle sense function of vehicle induction device
Can relatively simply constitute, assembly manipulation relevant to dampening mechanism can be it is more friendly, therefore but also safety belt furl
The robustness of device at work is improved.
Vehicle induction device and lockable mechanism more well known in the art for seat belt retractor.Relevant existing skill
Art for example may refer to patent document EP2621767B1 and CN104755331A and patent document CN1754724B above-mentioned.
Vehicle induction device can for example incude any one or more among the following running parameter of motor vehicle: motor vehicle is indulged
To acceleration, longitudinal deceleration, trim angle, side tilt angle, centrifugal acceleration, yaw velocity, or can synthetically feel
Multiple running parameters are answered, such as the acceleration of the synthesis of motor vehicle can be incuded.
The movable part of vehicle induction device for example may include the induction steel ball that can be rolled in recess, or can be in raceway
The roller of rolling, the sliding block that can be perhaps slided on sliding surface or the swing element with predetermined inertia etc..
In some embodiments, the output element can have integrated flange, and the outer peripheral surface of the flange is constituted
The working face.In other embodiment, the working face can pass through the arc integrated with the output element
Planar elements are constituted.The flange can be for example integrally formed by injection moulding process and the output element.In other
In embodiment, the flange and output element can be separately made first and then material is fixed on one in locking manner
It rises, such as by being bonded or welded.
In some embodiments, along debatching direction, after the scheduled rotational travel of the mandrel, the driven member
It is detached from the working face of the output element.
In some embodiments, along debatching direction, after the scheduled rotational travel of the mandrel, the driven member
It can continue to rest on the working face of output element, at this point, the corresponding section of the working face is squeezed with reduced degree
The driven member, so that the suppression component leaves the position for inhibiting the movable part.
Under the installation condition of seat belt retractor in a motor vehicle, the mandrel can have resting position, described
In resting position, the seat belt apparatus with seat belt retractor and ribbon is not used by.
In some embodiments, the deceleration mechanism is configured to wobble gear mechanism, the wobble gear mechanism
The eccentric wheel as input element including anti-rotatably being connect with mandrel, the wobble gear as output element and static tooth
Circle, the wobble gear is prejudicially supported by the eccentric wheel relative to the pivot center of the mandrel, and the swing
Gear is engaged with the gear ring.In other embodiment, the deceleration mechanism be configured to cylindrical gear mechanism or
Person's planetary gear mechanism.
In some embodiments, the dampening mechanism can have triggering disk, and the triggering disk can have groove, institute
It states triggering disk to rotatably support, and the triggering disk can be rotated in the case where overcoming resistance.The resistance for example may be used
To be frictional force, spring force or electromagnetic force.
In some embodiments, the output element can have transmission protrusion, and the transmission protrusion extend into described
In groove, and can freely it be moved between two ends of the groove.
In some embodiments, the transmission protrusion is configured to trundle.
In some embodiments, the transmission protrusion can be set on the axial end face of flange.
In some embodiments, the triggering disk can have working face, and the working face of the triggering disk can construct
At being used for, when the working face of driven member and the output element is detached from, the driven member is supported.
In some embodiments, the driven member can have stopping element, and the working face of the triggering disk can have
There is recess portion, the working face and the stopping element of the triggering disk can be configured to:
It is moved back along debatching direction after the scheduled rotational travel of the mandrel and in the scheduled maximum of the mandrel
Before rolling up position, the driven member is supported on the working face of the triggering disk except the recess portion, and the stopping element is not
It works；And
On the maximum debatching position of the mandrel, the driven member is supported in the recess portion, and the stopping element is led
Cause the activation of the lockable mechanism.
In some embodiments, the stopping element is configured to pawl.
In some embodiments, the driven member is configured to the driven member being pivotally supported.In other
In embodiment, the driven member is configured to the driven member of energy linear movement.
In some embodiments, the driven member can have support arm, and the structure of support arm is at for resting on
On the working face of the output element.
In some embodiments, in the scheduled resting position of the mandrel, the support arm with the output
The working face of the output element is rested in the neighbouring region in the end for being located at front along debatching direction of the working face of element
On.Therefore working face can be made compactly to be designed.
In some embodiments, the driven member can have support arm, and the structure of support arm is at for resting on
Working face on the working face of the output element and for resting on the triggering disk.
In other embodiment, the driven member can have two support arms, one of structure of support arm
At the working face for resting on the output element, and another structure of support arm is at for resting on the triggering disk
Working face on.
In some embodiments, the suppression component can be the component part of the elasticity of the one of the driven member,
Or the suppression component is configured to the cantilever part of the reset spring.
In some embodiments, the seat belt retractor can have side cover, and the side cover is fixed on the bracket
On.
In some embodiments, the protrusion that the side cover can have bottom surface and stretch out from the bottom surface, the input
Element is rotatably supported in the protrusion.
In some embodiments, the input element can have the first buckle element, and the protrusion can have
There is the second buckle element, first buckle element and second buckle element formation snap connection, so that the input is first
Part and the protrusion are fixed to each other in the axial direction.
In some embodiments, the input element can have flange face, and the output element is in the axial direction
It is supported on the flange face of the input element.
In some embodiments, the triggering disk is rotatably supported in the protrusion.
In some embodiments, the triggering disk can be compressed against on the bottom surface, and the triggering disk is existed
It is rotated in the case where overcoming frictional force relative to the bottom surface.
In some embodiments, the triggering disk can be compressed against on the bottom surface by multiple reeds.In addition
In some embodiments, the triggering disk can be compressed against on the bottom surface by spring collar.In other embodiment party
In formula, the triggering disk can be pressed against on excircle by friction element, and thus, it is possible to generate between triggering disk and friction element
Frictional force.
In some embodiments, by the flange face of the input element and it is described snap connection, the output element
The triggering disk is pressed against on the bottom surface.
In some embodiments, the protrusion can have the first shaft part separated with the bottom surface and with the bottom surface
The second adjacent shaft part, the triggering disk are rotatably mounted around on second shaft part, and first buckle element surrounds institute
The first shaft part is stated, second buckle element is arranged on the end of the protrusion.
In some embodiments, the gear ring can anti-rotatably be connect with the side cover, such as the two can pass through
It is molded integrally formed.
In the sense of the invention, " two components anti-rotatably connect " be not it is meant that they can turn around shaft line each other
It rotates relatively, and they can be can relatively moving along pivot center or cannot relatively move." two components
Anti-rotatably connect " it may include but be not limited to: two components are constituted integrally with each other；Gear set is with non-circular cross
It can move on the axis in section and on axis；Two components are permanently connected.Here, " two components anti-rotatably connect " should wrap
Include following situation: due to there are foozle or in the presence of unintentionally gap, two components can be rotated minutely relative to one another.
In the sense of the invention, " two components are rotatably coupled " is it is meant that they can turn around shaft line phase each other
It rotates over the ground.
In some embodiments, the seat belt retractor can have the combination of following technical characteristic:
The deceleration mechanism is configured to wobble gear mechanism, and the wobble gear mechanism includes anti-rotatably connecting with mandrel
The eccentric wheel as input element, the wobble gear as output element and gear ring, the wobble gear passes through the bias
It takes turns and is prejudicially supported relative to the pivot center of the mandrel, and the wobble gear is engaged with the gear ring, the swing
Gear has integrated fan-shaped flange, and the outer peripheral surface of the flange constitutes the working face, and the wobble gear has transmission
Protrusion, the eccentric wheel have the first buckle element, and the eccentric wheel has flange face, and the wobble gear is in the axial direction
It is supported on the flange face of the eccentric wheel；
The dampening mechanism has triggering disk, and the triggering disk has groove, and the transmission protrusion extend into the groove
In, and can freely be moved between two ends of the groove, the triggering disk has working face, the triggering disk
Working face is configured to be used for, and when the working face of driven member and wobble gear is detached from, supports the driven member；And
The seat belt retractor has side cover, and the side cover is fixed on the bracket, the gear ring and the side cover
Anti-rotatably connect, the side cover have bottom surface and from the bottom surface stretch out protrusion, the protrusion have with the bottom surface every
The first shaft part and second shaft part adjacent with the bottom surface opened and the second buckle member being arranged on the end of the protrusion
Part；
Wherein, the triggering disk is rotatably mounted around on second shaft part, and first buckle element is around described
First shaft part；
Wherein, first buckle element and second buckle element formation snaps connection so that the eccentric wheel and
The protrusion is fixed to each other in the axial direction, by the flange face of the eccentric wheel and it is described snap connection, the swing tooth
The triggering disk is pressed against on the bottom surface by wheel, enables the triggering disk in the case where overcoming frictional force relative to described
Bottom surface is rotated.
In some embodiments, the maximum debatching position can be a mandrel position, exist in seat belt retractor
Under installation condition in motor vehicle, the webbing length being drawn out on the mandrel position is greater than or equal in seat belt apparatus
By the webbing length being drawn out under defined wearing state.The case where this for being mounted with children's seat in a motor vehicle can be
Particularly advantageous, wherein ribbon may be implemented on pull-out direction in the case where the children that constraint is sitting on children's seat
Automatic locking.
Seat belt apparatus with this seat belt retractor in a motor vehicle be not used in the state of, vehicle induction device
Vehicle sense function is suppressed mechanism and inhibits, therefore noise reduction may be implemented.When seat belt apparatus is worn, vehicle induction device can restore
Vehicle sense function, therefore vehicle sense function can be provided with suiting the requirements.
In some embodiments, the vehicle induction device may include pedestal, can in the pedestal movable induction member
Part and the stopping element being movably supported in the pedestal, the sensing element can occupy static initial in the pedestal
It position and can be moved in response to motor vehicle operating status, the stopping element can occupy static initial position and can quilt
The sensing element lifts, and the stopping element is configured to be used for, and when being raised to predetermined position from its resting position, leads to institute
State the activation of lockable mechanism.In some embodiments, the stopping element of the vehicle induction device is configured to pawl.
In some embodiments, the sensing element is configured to induction steel ball, and the pedestal can have recess,
The induction steel ball in response to motor vehicle operating status can roll in the recess.
In some embodiments, the stopping element of the sensing device is configured to claw element.In some implementations
In mode, which is pivotally supported in the pedestal.In some embodiments, the claw element can cover
The induction steel ball that residence is stated recess and is received in the recess.In other embodiment, the sensing device stops
Dynamic element is configured to the stopping element of energy linear movement.
In some embodiments, the lockable mechanism may include triggering lockable mechanism and main lockable mechanism, wherein touching
Sending out lockable mechanism has lesser service load, therefore can weaker design, and main lockable mechanism has biggish service load,
Therefore it needs more firmly to design.
In some embodiments, the lockable mechanism may include lock plate, and the stop of the lock plate can lead to institute
State locking of the mandrel on debatching direction.
In some embodiments, the seat belt retractor can have the combination of following technical characteristic:
The lockable mechanism includes locking pawl, and the lock plate has lock groove, and the lock groove has inner radial
The end of end and radially outer, the locking pawl are guided by the lock groove and in the ends of the inner radial towards lock groove
Direction on be biased；
The bracket has teeth portion；
The mandrel has vacancy portion, and the vacancy portion receives the locking pawl；
Wherein, the locking pawl moves upwards teeth portion described in Shi Nengyu in the side of the end of the radially outer towards lock groove and nibbles
It closes, so that the locking pawl is stopped and therefore the mandrel is locked up on debatching direction.
By the second aspect of the present invention, it is proposed that a kind of seat belt apparatus for motor vehicle, the seat belt apparatus include
Ribbon and the seat belt retractor for motor vehicle according to a first aspect of the present invention, wherein the core of the seat belt retractor
Axis is the spool of the ribbon.
In this respect it is to be noted that above mentioned each technical characteristic and each technical characteristic that will be detailed below referring to can appoint
Meaning ground is combined with each other, as long as they are not conflicting.All technically feasible feature combinations are all in this application
The technology contents for clearly including.
Detailed description of the invention
The present invention is described in more detail with reference to below by way of specific embodiment.Schematical Brief Description Of Drawings
It is as follows:
Fig. 1 is the exploded view by the seat belt retractor of one embodiment of the present invention；
Fig. 2 is the view omitted by the part of the side cover of the seat belt retractor of Fig. 1 in axial direction observed；
Fig. 3 is the longitudinal section view omitted by multiple components part in the assembled state of the seat belt retractor of Fig. 1；And
And
Fig. 4 to Fig. 9 is in axial direction observing under different conditions by the dampening mechanism of the seat belt retractor of Fig. 1
Schematic diagram.
Specific embodiment
Illustrate the seat belt retractor for pressing one embodiment of the present invention with reference first to Fig. 1~3.In Fig. 1, ribbon 12
It with dotted line indicates, mandrel 1 is rotatably supported in bracket 4.For receiving the end cap 13 of wind spring that can be fixed on
On one end face of bracket 4, the wind spring can be in retracting direction biased mandrel 1, so that ribbon 12 is in no external pull
In the case where be wound on mandrel 1, in the case where external pull can overcome the spring force of wind spring, ribbon 12 from mandrel 1 draw
Out.
Seat belt retractor has lockable mechanism 100.Here, mandrel 1 has vacancy portion 1.1, the vacancy portion receives lock
Claw stop 3.Bracket 4 has teeth portion 4.1.Locking pawl 3 can be with 4.1 collective effect of teeth portion.Vacancy portion 1.1, teeth portion 4.1, locking pawl 3 with
And the lock plate 2 that will illustrate is the component part of lockable mechanism 100.The lock plate 2 has lock groove 2.1, the locking
Slot 2.1 has the end of inner radial and the end of radially outer.The locking pawl 3 is inserted into lock groove 2.1 with pin element 3.1
In and therefore guided by the lock groove 2.1.The locking pawl 3 quilt on the direction towards the end of the inner radial of lock groove
Unshowned spring element bias.The lock plate 2 is rotatably mounted around in the aixs cylinder of mandrel 1.It is not stopped in lock plate 2
In the case where, locking pawl 3 is on the position of inner radial and is detached from teeth portion 4.1, and the mandrel 1 can be via locking pawl
3 drive lock plates 2 rotate together.In the case where lock plate 2 is stopped, if mandrel 1 is rotated up in debatching side, locking
The side that pawl 3 is forced in the end of the radially outer towards lock groove 2.1 moves upwards, until locking pawl 3 is engaged with teeth portion 4.1, in
It is that locking pawl 3 is stopped together with mandrel 1.In the case where lock plate 2 is stopped and locking pawl 3 is engaged with teeth portion 4.1,
If mandrel 1 rotates in retracting direction, locking pawl 3 is forced on the direction of the end of the inner radial towards lock groove 2.1
Movement, then locking pawl 3 is disengaged again with teeth portion 4.1, therefore rotation of the mandrel 1 in retracting direction is not limited.Locking
Disk 2 can circumferentially have ratchet 2.2, and in other words, lock plate 2 is configured to ratchet.Stopping element can be with ratchet 2.2
Engagement, and so as to cause the stop of lock plate 2.
Seat belt retractor has vehicle induction device 6, and the vehicle induction device is configured to for incuding the safety-related of motor vehicle
Working condition, such as can be used for incuding acceleration, deceleration and the tilt angle of motor vehicle.Such as the deceleration in motor vehicle
When degree meets or exceeds threshold value, the vehicle induction device manipulates stopping element, so that the ratchet 2.2 of stopping element and lock plate 2 connects
It closes, to activate the latch functions of locking system.In the embodiment shown in figure 1, the vehicle induction device 6 include pedestal 6.2,
Can in the pedestal the movable stopping element 6.3 sensing element 6.1 and be movably supported in the pedestal.The induction
Element 6.1 can occupy static initial position in the pedestal 6.2 and can move in response to motor vehicle operating status.Institute
Static initial position can be occupied and can be lifted by the sensing element 6.1, the stopping element 6.3 by stating stopping element 6.3
It is configured to be used for, when being raised to predetermined position from its resting position, leads to the activation of the lockable mechanism 100.Here, described
Sensing element 6.1 is configured to induction steel ball, and the pedestal 6.2 can have recess, and the induction steel ball can be in response to machine
Rolled in the recess to motor vehicle operation status.The stopping element 6.3 is configured to claw element, which can
It is pivotally supported in the pedestal 6.2, the induction steel that the claw element covers the recess and is received in the recess
Ball.During incuding steel ball rolling, 6.3 energy of stopping element and position of the rolling steel balls in recess are relatively lifted
It rises.When stopping element 6.3 is raised on predetermined position, stopping element 6.3 is engaged with ratchet 2.2.Here, stopping element
6.3 can both be considered as the component part of lockable mechanism 100, can also be considered as the component part of vehicle induction device 6.
In a kind of alternative embodiment, two individual components also can be set, one of them is to belong to locking machine
The stopping element of structure 100, the other is belong to vehicle induction device 6 lifts element, this, which lifts element, can manipulate the stopping element.
Seat belt retractor may include side cover 5, which can be considered as the housing parts of seat belt retractor, safety belt
The part of coiler can be covered and be protected by side cover 5.The side cover 5 can be fixed on the bracket 4.In such as Fig. 1
In the embodiment, vehicle induction device 6, locking system 100 and dampening mechanism 200 can be covered by side cover 5, wherein vehicle sense
Device 6 is mounted in the section 5.5 in side cover 5.
Seat belt retractor has dampening mechanism 200, which can inhibit the vehicle sense of vehicle induction device when needed
Function realizes noise reduction, and can discharge the vehicle sense function of vehicle induction device when needed, realizes the safety-related work of motor vehicle
Make the induction of state, and activates the latch functions of locking system if necessary.
The dampening mechanism 200 may include deceleration mechanism, and the deceleration mechanism has input element 7 and output element 8.
The deceleration mechanism is configured to wobble gear mechanism, wherein the input element 7 is configured to eccentric wheel and and core
Axis 1 anti-rotatably connects, and the output element 8 is configured to wobble gear and has integrated fan-shaped flange 8.1, institute
The outer peripheral surface for stating flange constitutes working face, and static gear ring 5.1 can be equipped in side cover 5.The wobble gear passes through described
Eccentric wheel is prejudicially supported relative to the pivot center of the mandrel 1, and the wobble gear is engaged with the gear ring 5.1.
In embodiment as shown in Figure 1, the dampening mechanism 200 has triggering disk 9, and the triggering disk has groove
9.1, the triggering disk rotatably supports.The output element 8 has transmission protrusion 8.2, and the transmission protrusion extend into institute
It states in groove 9.1, and can freely be moved between two ends 9.3,9.4 of the groove 9.1.The triggering disk 9 has
There is working face.The working face of the triggering disk 9 has recess portion 9.2.
The dampening mechanism 200 include driven member 10, move with the driven member 10 suppression component 11.1 that couples and
Reset spring 11, the reset spring 11 leave described in the direction biased of stopping element 6.3 making the suppression component 11.1
Driven member 10.The driven member 10 is configured to the driven member being pivotally supported.The suppression component is configured to institute
State the cantilever part of reset spring 11.The cantilever part can move together with driven member 10.The driven member 10 has branch
Brace 10.1 and stopping element 10.2, the stopping element are configured to pawl.It is rested in driven member 10 with support arm 10.1
When on the working face of output element 8, the suppression component 11.1 squeezes the stopping element 6.3 of vehicle induction device 6, so that stopping element
6.3 and sensing element 6.1 cannot be moved relative to pedestal 6.2, so as to reduce or even be eliminated vehicle induction device due to zero
Noise caused by part collides.When the working face of support arm 10.1 and output element 8 is detached from, the suppression component 11.1 is resetting
Stopping element 6.3 is left under the action of spring 11, and under the drive of driven member 10 to discharge the vehicle sense function of vehicle induction device
Energy.The support arm 10.1 of the driven member 10 can rest against on the working face of the output element 8 and in the triggering disk 9
It is rested against on working face, the setting can be realized with offseting one from another in time, perhaps realize in succession and continuously or portion
Divide and overlappingly realizes.
The section 5.5 of side cover 5 is omitted in figure 2 and figure 3.Such as by Fig. 2 and Fig. 3 as it can be seen that the side cover 5 has bottom surface
5.4 and from the bottom surface stretch out protrusion.The input element 7 has flange face 7.2, and the output element 8 is in the axial direction
On be supported on the flange face 7.2 of the input element 7.The input element 7 has the first buckle element 7.1 and can be rotated
Ground is supported in the protrusion.The protrusion have the first shaft part 5.2 for being separated with the bottom surface 5.4 and with the bottom surface 5.4
The second adjacent shaft part 5.3 and the second buckle element 5.2.1 being arranged on the end of the protrusion.Due to the first shaft part phase
For the diameter that the second shaft part reduces, flange face 5.2.2 is formed in protrusion.First buckle element 7.1 and described second
Buckle element 5.2.1 formation snaps connection, so that the input element 7 and the protrusion are fixed to each other in the axial direction.Institute
The first buckle element 7.1 is stated around first shaft part 5.2.Connected by the flange face 7.2 of the input element 7 and the buckle
It connects, the triggering disk 9 is pressed against on the bottom surface 5.4 by the output element 8, and the triggering disk 9 is enabled to overcome friction
It is rotated in the case where power relative to the bottom surface 5.4.
Illustrate the course of work of the dampening mechanism 200 by seat belt retractor of the invention below by way of Fig. 4~9.
In working condition shown in Fig. 4, mandrel 1 is in scheduled resting position.With seat belt retractor and
Under the installation condition of the seat belt apparatus of ribbon 12 in a motor vehicle, when seat belt apparatus is not worn, ribbon 12 is in safety
It is farthest furled on mandrel 1 under the action of the spring force of the wind spring of Webbing retractor, the mandrel 1 is in scheduled static
On position.In state described in Fig. 1, the support arm 10.1 of driven member 10 rests on the working face of the flange 8.1 of output element 8
Above and close to the end 8.1.1 for being located at front along debatching direction of the working face, 8.2 gear of transmission protrusion leans against groove 9.1
On end 9.3, suppression component 11.1 squeezes the stopping element 6.3 of vehicle induction device 6, so that vehicle induction device 6 is suppressed, so as to
Realize noise reduction.
From state shown in Fig. 4, mandrel 1 is rotated along debatching direction, and output element 8 is with scheduled reduction ratio edge and debatching
The corresponding first direction D1 rotation in direction, reaches state shown in Fig. 5.Correspondingly, ribbon 12 is drawn out certain length.It is defeated
The working face of the flange 8.1 of element 8 continues to support the support arm 10.1 of driven member 10 out, and suppression component 11.1 continues to squeeze vehicle sense
The stopping element 6.3 of device 6, the support arm 10.1 of driven member 10 close to output element 8 flange 8.1 working face along debatching
First direction is located at subsequent end 8.1.2 in other words in direction.
From state shown in Fig. 5, mandrel 1 continues to rotate along debatching direction, and output element 8 is with scheduled reduction ratio along the
One direction D1 rotation, and reach state as shown in FIG. 6, wherein the working face of the flange 8.1 of output element 8 is just with it
End 8.1.2 leaves support arm 10.1, and support arm 10.1 rests on the work of triggering disk 9 under the action of reset spring 11
On face.Suppression component 11.1 leaves the stopping element 6.3 of vehicle induction device 6 under the drive of driven member 10, then vehicle induction device 6
Vehicle sense functional rehabilitation.
Mandrel 1 experienced first stroke, ribbon 12 and core from state shown in state to Fig. 6 shown in Fig. 4 on debatching direction
The first stroke of axis 1 is correspondingly drawn out the first length.Triggering disk 9 remains stationary under the action of stiction, is driven convex
Play 8.2 free movements in groove 9.1.
From state shown in Fig. 6, mandrel 1 continues to rotate along debatching direction, and output element 8 is with scheduled reduction ratio along the
One direction D1 rotation, and reach state as shown in Figure 7, wherein support arm 10.1 continues to rest on the working face of triggering disk 9
On, vehicle induction device 6 remains valid, and 8.2 gear of transmission protrusion leans against on the end 9.4 of groove 9.1.
From state shown in Fig. 7, mandrel 1 continues to rotate along debatching direction, and triggering disk 9 is transmitted protrusion 8.2 along first
Direction D1 drives, until reaching state as shown in Figure 8, wherein support arm 10.1 enters triggering under the action of reset spring 11
In the recess portion 9.2 of the working face of disk 9, at this point, stopping element 10.2 is engaged with the ratchet 2.2 of lock plate 2, therefore locking dress is activated
100 are set, prevent mandrel 1 is from continuing to rotate along debatching direction, mandrel 1 reaches maximum debatching position, and ribbon 12 reaches maximum drawing
Length out.When seat belt apparatus is worn by occupant by regulation in a motor vehicle, the position of mandrel 1 can correspond to Fig. 4 institute
Show the state between state shown in state and Fig. 8, especially can correspond to state shown in Fig. 8 in the case where children's seat.
From state shown in Fig. 8, when releasing the wearing of seat belt apparatus, effect of the mandrel 1 in the reset force of wind spring
Lower constantly to rotate along retracting direction, output element 8 is with scheduled reduction ratio in the second direction D2 opposite with first direction D1
Upper rotation, transmission protrusion 8.2 leaves the end 9.4 of groove 9.1, the free movement in groove 9.1, until gear leans against groove 9.1
End 9.3 on, lock plate 9 remains stationary.Then, transmission protrusion 8.2 drives lock plate 9 in a second direction d 2, so that branch
Brace 10.1 is detached from from recess portion 9.2.When mandrel 1 turns to state shown in Fig. 9 along retracting direction, support arm 10.1 is detached from locking
The working face of disk 9, support arm 10.1 reach the end 8.1.2 of the working face of output element 8.The work of the flange 8.2 of output element 8
Make the support arm 10.1 that face supports driven member 10 again, so that suppression component 11.1 squeezes the stopping element of vehicle induction device 6 again
6.3.Under the action of the reset force of wind spring, mandrel 1 can be returned to as shown in Figure 4 along retracting direction from state shown in Fig. 9
In scheduled resting position.
Finally, it is noted that specific embodiment is used only for understanding the present invention, without to protection scope of the present invention
It is construed as limiting.To those skilled in the art, modification can be made on the basis of specific embodiment, these modifications are all
Protection scope of the present invention is not departed from.
Claims (10)
1. a kind of seat belt retractor for motor vehicle comprising:
Bracket (4)；
Mandrel (1), the mandrel are rotatably supported in bracket (4) and are biased in retracting direction；
Lockable mechanism (100), the lockable mechanism are configured to be used for, in state of activation on debatching direction mandrel described in locking
(1) and in deactivated state the mandrel (1) is discharged；
Vehicle induction device (6), the vehicle induction device are configured to the safety-related working condition for incuding motor vehicle, the vehicle sense
Device has movable part；With
Dampening mechanism (200), the dampening mechanism include deceleration mechanism, and the deceleration mechanism has input element (7) and exports
Element (8), the input element are anti-rotatably connect with mandrel (1)；
It is characterized in that,
The output element (8) has working face；
The dampening mechanism (200) includes driven member (10), with the driven member (10) moves the suppression component (11.1) that couples
And reset spring (11), the driven member (10) can be manipulated by the working face of the output element (8), the reset spring
(11) suppression component (11.1) are made to discharge driven member (10) described in the direction biased of the movable part；
Wherein, in the scheduled resting position of the mandrel (1), the working face manipulation of the output element (8) is described driven
Part (10), so that the suppression component (11.1) is on the position for inhibiting the movable part；
Wherein, described after the scheduled rotational travel from the resting position of the mandrel (1) along debatching direction
Suppression component (11.1) leaves the position for inhibiting the movable part.
2. the seat belt retractor according to claim 1 for motor vehicle, which is characterized in that the output element (8)
With integrated flange (8.1), the outer peripheral surface of the flange constitutes the working face；And/or
Along debatching direction, after the scheduled rotational travel of the mandrel (1), the driven member (10) is detached from the output member
The working face of part (8)；And/or
The deceleration mechanism is configured to wobble gear mechanism, and the wobble gear mechanism includes anti-rotatably connecting with mandrel (1)
The eccentric wheel, the wobble gear as output element (8) and static gear ring (5.1) as input element (7), the swing
Gear is prejudicially supported by the eccentric wheel relative to the pivot center of the mandrel (1), and the wobble gear and institute
State gear ring (5.1) engagement；And/or
The dampening mechanism (200) has triggering disk (9), and the triggering disk has groove (9.1), and the triggering disk is rotationally
Bearing, and the triggering disk can be rotated in the case where overcoming resistance；And/or
The output element (8), which has, is driven raised (8.2), and the transmission protrusion is extend into the groove (9.1), and energy
It is freely moved between two ends (9.3,9.4) of the groove (9.1)；And/or
The triggering disk (9) have working face, it is described triggering disk working face be configured to be used for, driven member (10) with it is described defeated
When the working face of element (8) is detached from out, the driven member (10) are supported.
3. the seat belt retractor according to claim 2 for motor vehicle, which is characterized in that driven member (10) tool
Have stopping element (10.2), the working face of triggering disk (9) has recess portion (9.2), the working face of triggering disk (9) and institute
Stopping element (10.2) is stated to be configured to:
Along debatching direction after the scheduled rotational travel of the mandrel (1) and in the scheduled maximum of the mandrel (1)
Before debatching position, the driven member (10) is supported on the working face of triggering disk (9) except the recess portion (9.2),
The stopping element (10.2) does not work；And
On the maximum debatching position of the mandrel (1), the driven member (10) is supported in the recess portion (9.2), described to stop
Dynamic element (10.2) lead to the activation of the lockable mechanism (100)；
And/or the stopping element (10.2) is configured to pawl；
And/or the driven member (10) is configured to the driven member being pivotally supported；
And/or the driven member (10) has support arm (10.1), the structure of support arm is at for resting on the output member
On the working face of part (8)；
And/or the driven member (10) has support arm (10.1), the structure of support arm is at for resting on the output member
Working face on the working face of part (8) and for resting on triggering disk (9)；
And/or in the scheduled resting position of the mandrel, the support arm (10.1) is in the work with the output element (8)
Make the work that the output element (8) are rested in the neighbouring region in the end (8.1.1) for being located at front along debatching direction in face
On face.
4. the seat belt retractor according to any one of claim 1 to 3 for motor vehicle, which is characterized in that described
Suppression component is that the component part of the elasticity of the one of the driven member (10) or the suppression component are configured to the reset
The cantilever part of spring (11)；And/or
The seat belt retractor has side cover (5), and the side cover is fixed on the bracket (4)；
Preferably, the protrusion that the side cover (5) has bottom surface (5.4) and stretches out from the bottom surface, the input element (7) can turn
It is supported in the protrusion dynamicly；
Preferably, the input element (7) has the first buckle element (7.1), and the protrusion has the second buckle element
(5.2.1), first buckle element and second buckle element formation snap connection so that the input element (7) and
The protrusion is fixed to each other in the axial direction.
5. the seat belt retractor according to any one of claim 1 to 4 for motor vehicle, which is characterized in that described
Input element (7) has flange face (7.2), and the output element (8) is supported on the input element (7) in the axial direction
On flange face (7.2)；And/or
The seat belt retractor has side cover (5), and the side cover is fixed on the bracket (4), and the side cover (5) has bottom
Face (5.4) and the protrusion stretched out from the bottom surface, the triggering disk (9) are rotatably supported in the protrusion；And/or
The triggering disk (9) is compressed against on the bottom surface (5.4), so that the triggering disk (9) can be in the feelings for overcoming frictional force
It is rotated under condition relative to the bottom surface (5.4)；And/or
The input element (7) has the first buckle element (7.1), and the protrusion has the second buckle element (5.2.1),
First buckle element and second buckle element formation snap connection, so that the input element (7) and the protrusion
It is fixed to each other in the axial direction；And/or
The input element (7) has flange face (7.2), and the output element (8) is supported on the input in the axial direction
On the flange face (7.2) of element (7)；And/or
By the flange faces (7.2) of the input element (7) and it is described snap connection, the output element (8) is by the triggering
Disk (9) is pressed against on the bottom surface (5.4)；And/or
The protrusion has the first shaft part (5.2) separated with the bottom surface and second shaft part (5.3) adjacent with the bottom surface,
The triggering disk (9) is rotatably mounted around on second shaft part (5.3), and first buckle element (7.1) is around described
First shaft part (5.2), second buckle element (5.2.1) are arranged on the end of the protrusion；And/or
The seat belt retractor has side cover (5), and the side cover is fixed on the bracket (4), the gear ring (5.1) and institute
Side cover (5) is stated anti-rotatably to connect.
6. the seat belt retractor according to any one of claim 1 to 5 for motor vehicle, which is characterized in that
The deceleration mechanism is configured to wobble gear mechanism, and the wobble gear mechanism includes anti-rotatably connecting with mandrel (1)
The eccentric wheel, the wobble gear as output element (8) and gear ring (5.1) as input element (7), the wobble gear is logical
The pivot center that the eccentric wheel is crossed relative to the mandrel (1) prejudicially supports, and the wobble gear and the gear ring
(5.1) it engages, the wobble gear has integrated fan-shaped flange (8.1), and the outer peripheral surface of the flange constitutes the work
Face, the wobble gear, which has, to be driven raised (8.2), and the eccentric wheel has the first buckle element (7.1), the eccentric wheel tool
There are flange face (7.2), the wobble gear is supported in the axial direction on the flange face of the eccentric wheel；
The dampening mechanism (200) has triggering disk (9), and the triggering disk has groove (9.1), and the transmission protrusion is extend into
In the groove (9.1), and can freely it be moved between two ends (9.3,9.4) of the groove, the triggering disk
(9) there is working face, the working face of the triggering disk is configured to be used for, and is detached from the working face of driven member (10) and wobble gear
When, support the driven member (10)；And
The seat belt retractor has side cover (5), and the side cover is fixed on the bracket (4), the gear ring (5.1) and institute
It states side cover (5) anti-rotatably to connect, the protrusion that the side cover (5) has bottom surface (5.4) and stretches out from the bottom surface, the protrusion
With the first shaft part (5.2) separated with the bottom surface and second shaft part (5.3) adjacent with the bottom surface and it is arranged in institute
State the second buckle element (5.2.1) on the end of protrusion；
Wherein, the triggering disk (9) is rotatably mounted around on second shaft part (5.3), first buckle element (7.1)
Around first shaft part (5.2)；
Wherein, first buckle element (7.1) and second buckle element (5.2.1) formation snap connection, so that described
Eccentric wheel and the protrusion are fixed to each other in the axial direction, are connected by the flange face (7.2) of the eccentric wheel and the buckle
It connects, the triggering disk (9) is pressed against on the bottom surface (5.4) by the wobble gear, and the triggering disk is rubbed overcoming
It is rotated in the case where wiping power relative to the bottom surface (5.4).
7. the seat belt retractor according to any one of claim 1 to 6 for motor vehicle, which is characterized in that described
Vehicle induction device (6) includes pedestal (6.2), movable sensing element (6.1) and can be movably supported at described in the pedestal
Stopping element (6.3) in pedestal, the sensing element (6.1) can occupy static initial position in the pedestal (6.2)
And it can be moved in response to motor vehicle operating status, the stopping element (6.3) can occupy static initial position and energy
It is lifted by the sensing element (6.1), the stopping element (6.3) is configured to be used for, predetermined being raised to from its resting position
When position, lead to the activation of the lockable mechanism (100)；
Preferably, the sensing element (6.1) is configured to incude steel ball, and the pedestal (6.2) has recess, the induction steel ball
It in response to motor vehicle operating status can be rolled in the recess；
Preferably, the stopping element (6.3) is configured to claw element, which is pivotally supported at the pedestal
(6.2) in, the claw element covers the recess and the induction steel ball that is received in the recess.
8. the seat belt retractor according to any one of claim 1 to 7 for motor vehicle, which is characterized in that described
Lockable mechanism (100) includes lock plate (2), and the stop of the lock plate can lead to lock of the mandrel (1) on debatching direction
Only.
9. the seat belt retractor according to claim 8 for motor vehicle, which is characterized in that
The lockable mechanism (100) includes locking pawl (3), and the lock plate (2) has lock groove (2.1), the lock groove
(2.1) end of the end with inner radial and radially outer, the locking pawl (3) are guided simultaneously by the lock groove (2.1)
And it is biased on the direction towards the end of the inner radial of lock groove；
The bracket (4) has teeth portion (4.1)；
The mandrel (1) has vacancy portion (1.1), and the vacancy portion receives the locking pawl (3)；
Wherein, the side of end of the locking pawl (3) in the radially outer towards lock groove moves upwards teeth portion described in Shi Nengyu
(4.1) it engages, so that the locking pawl (3) is stopped and therefore the mandrel (1) is locked up on debatching direction.
10. a kind of seat belt apparatus for motor vehicle, the seat belt apparatus include ribbon, which is characterized in that the safety
It include the seat belt retractor according to any one of claim 1 to 9 for motor vehicle with device, wherein the peace
The mandrel (1) of full Webbing retractor is the spool of the ribbon.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910358014.3A CN110027502A (en) | 2019-04-30 | 2019-04-30 | Seat belt retractor and seat belt apparatus for motor vehicle |
| PCT/CN2020/082446 WO2020220911A1 (en) | 2019-04-30 | 2020-03-31 | Seat belt retractor and seat belt apparatus for power-driven vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910358014.3A CN110027502A (en) | 2019-04-30 | 2019-04-30 | Seat belt retractor and seat belt apparatus for motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110027502A true CN110027502A (en) | 2019-07-19 |
Family
ID=67240941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910358014.3A Pending CN110027502A (en) | 2019-04-30 | 2019-04-30 | Seat belt retractor and seat belt apparatus for motor vehicle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110027502A (en) |
| WO (1) | WO2020220911A1 (en) |
Cited By (6)
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| CN110775015A (en) * | 2019-11-05 | 2020-02-11 | 安徽江淮汽车集团股份有限公司 | Safety belt retractor |
| WO2020220911A1 (en) * | 2019-04-30 | 2020-11-05 | 延锋汽车智能安全系统有限责任公司 | Seat belt retractor and seat belt apparatus for power-driven vehicle |
| WO2022012448A1 (en) * | 2020-07-16 | 2022-01-20 | 延锋汽车智能安全系统有限责任公司 | Angle adjusting disk assembly for seat belt retractor, and seat belt retractor |
| CN115384445A (en) * | 2022-09-02 | 2022-11-25 | 浙江极氪智能科技有限公司 | Seat belt and vehicle |
| WO2022257847A1 (en) | 2021-06-11 | 2022-12-15 | 延锋国际汽车技术有限公司 | Control assembly for seat belt retractor and vehicle seat |
| WO2024094062A1 (en) * | 2022-11-02 | 2024-05-10 | 延锋国际汽车技术有限公司 | Seat-belt winder assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020220911A1 (en) * | 2019-04-30 | 2020-11-05 | 延锋汽车智能安全系统有限责任公司 | Seat belt retractor and seat belt apparatus for power-driven vehicle |
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| Publication number | Publication date |
|---|---|
| WO2020220911A1 (en) | 2020-11-05 |
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