CN206374715U - A kind of Webbing retractor - Google Patents
A kind of Webbing retractor Download PDFInfo
- Publication number
- CN206374715U CN206374715U CN201621301755.6U CN201621301755U CN206374715U CN 206374715 U CN206374715 U CN 206374715U CN 201621301755 U CN201621301755 U CN 201621301755U CN 206374715 U CN206374715 U CN 206374715U
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- reel
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- safety belt
- induction device
- piston
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Abstract
The utility model discloses a kind of Webbing retractor, the Webbing retractor includes reel, pre-tightening mechanism, lockable mechanism, mechanical sensing mechanism.Safety belt is wound with reel；Pre-tightening mechanism is used to tighten up safety belt；Lockable mechanism is used to prevent the reel from rotating toward the direction that safety belt is pulled out；Mechanical sensing mechanism includes car induction device, and the triggering of car induction device can make lockable mechanism work.The triggering mode of car induction device includes the first triggering mode and the second triggering mode.Second triggering mode is that, in the case where pre-tightening mechanism works, piston-rack stretches out from the cylinder body, when piston-rack reaches extreme position, and pre-tightening mechanism work is completed, and car induction device is triggered.Webbing retractor of the present utility model can effectively reduce the pull-out amount of safety belt after pre-tightening mechanism work, and compare and prior art, and the structure of Webbing retractor of the present utility model is simpler, and manufacturing cost and assembly difficulty are also lower.
Description
Technical field
The utility model is related to a kind of Webbing retractor, and it constitutes the seat safety belt apparatus for vehicle.
Background technology
Webbing retractor includes pre-tightening mechanism, mechanical sensing mechanism and lockable mechanism.Exceed when safety belt pulls out speed
When pulling out speed limit or vehicle acceleration more than acceleration limit value, mechanical sensing mechanism work, it is by driving locking
Mechanism limits the pull-out of safety belt.When emergency occurs for vehicle, Webbing retractor furls safety by pre-tightening mechanism
After band, pre-tightening mechanism end-of-job, the pull-out of safety belt can be limited by mechanical sensing mechanism.But, in pre-tightening mechanism work
After work terminates, started working to mechanical sensing mechanism, safety belt will be drawn out always.
To solve the above problems, prior art provides a kind of Webbing retractor, it is claimed by increasing a lockable mechanism
Second lockable mechanism, second lockable mechanism is driven by pre-tightening mechanism, after the completion of pre-tightening mechanism work, the second locking machine
Structure can carry out locking to spreadet spreadet wheel, and safety belt is solved the problem of safety belt is drawn out after pre-tightening mechanism works with this.Such as public affairs
Accuse in number Chinese patent application for being CN1672989, illustrate a kind of driving of technology by clutch friction plate, triggering second
Lockable mechanism.
But such scheme is due to including two independent lockable mechanisms, so the program can cause Webbing retractor zero
Increasing for part, adds the manufacturing cost and assembly difficulty of Webbing retractor, Webbing retractor is tended to maximization.
Utility model content
The purpose of the utility model purport is to provide a kind of Webbing retractor, and the Webbing retractor can solve prior art
Webbing retractor manufacturing cost is high and the problem of big assembly difficulty.
The utility model provides a kind of Webbing retractor, including：
Reel, safety belt is wrapped on the reel, and the reel furls or pulled out safety belt by rotating；
Pre-tightening mechanism, it includes piston-rack and cylinder body, and the piston-rack is used to drive the reel toward retracting safety
The direction of band rotates；
Lockable mechanism, it is connected with the reel, and it is used to prevent the reel from rotating toward the direction that safety belt is pulled out；
Mechanical sensing mechanism, it is connected with the reel and lockable mechanism respectively, and the mechanical sensing mechanism includes car sense
Device, the triggering of the car induction device can make the lockable mechanism work；Wherein,
The triggering mode of the car induction device includes the first triggering mode and the second triggering mode, when the car induction device quilt
After triggering, the mechanical sensing mechanism drives the lockable mechanism work, the direction rotation for preventing the reel from being pulled out toward safety belt
Turn；
First triggering mode is, in the case where the pre-tightening mechanism does not work, when vehicle acceleration exceedes car
During acceleration limit value, the car induction device is triggered；
Second triggering mode is, in the case where the pre-tightening mechanism works, and the piston-rack is from the cylinder body
Middle to stretch out, when the piston-rack reaches extreme position, the pre-tightening mechanism work is completed, and the car induction device is touched
Hair.
Preferably, the car induction device includes metal ball, support and boosts piece；
The support is provided with support holes and the mounting portion for carrying the metal ball, and the mounting portion and metal ball connect
Contacting surface is flexure plane；
The piece that boosts is contacted with the metal ball and is arranged on above the metal ball, and the piece that boosts can be around the branch
Bearing bore carrys out back rotation between initial position and operating position；
When the car induction device is not triggered, the piece that boosts is in initial position；When the car induction device is with first
When triggering mode is triggered, the metal ball is rolled because of effect of inertia and risen along the flexure plane of the mounting portion, described to boost
Piece is boosted and turns to operating position, described to boost piece so that the lockable mechanism prevents what the reel was pulled out toward safety belt
Direction rotates.
Preferably, the described piece one end that boosts is provided with lug boss, and the other end is provided with afterbody lever, and the piece that boosts is described convex
Rise and support shaft is provided between portion and afterbody lever, the support shaft is rotated with the supported hole and is connected；When the piston-rack is stretched
When going out to extreme position, the end of the piston-rack and the afterbody lever contact, the afterbody lever is down pushed away, described
Lug boss up jack-up, the piece that boosts turns to operating position.
Preferably, the piston-rack end is provided with magnet portion, described when the piston-rack reaches extreme position
Magnet portion is corresponding with the position of the metal ball, and the magnet portion causes the metal ball to roll so that described to boost piece quilt
Boost, the piece that boosts turns to operating position.
Preferably, the lockable mechanism includes retainer, spreadet spreadet wheel, claw and connection member,
The spreadet spreadet wheel is fixedly connected with the reel, and can be rotated integrally with the reel；
The claw is rotatably connected on the retainer, and the claw can engage with spreadet spreadet wheel, to prevent the volume
Cylinder rotates to safety belt pull-out direction；
The connection member is connected with the claw and the mechanical sensing mechanism respectively, and the mechanical sensing mechanism can lead to
The position that the connection member drives the claw never with the spreadet spreadet wheel to engage is crossed to turn to and the spreadet spreadet wheel card
The position of conjunction.
Preferably, the mechanical sensing mechanism also includes：
Disk is triggered, it is fixedly connected with the reel, its lateral surface is provided with ratchet；
Sensor wrap, it is connected with the connection member；
Ratchet, it is rotatably connected in the sensor wrap, its with it is described boost piece and contact and be arranged on described boost piece
Top, by making the ratchet engage with the ratchet, the sensor wrap can be fixedly connected with the triggering disk；
When the car induction device is triggered, the piece that boosts turns to operating position, and the ratchet is boosted, the spine
The position that pawl never engages with the ratchet turns to the position engaged with the ratchet so that the sensor wrap with it is described
Triggering disk is fixedly connected；The revolving force that reel is subject to pass sequentially through the triggering disk, sensor wrap, connection member be delivered to it is described
Claw so that the claw engages with the spreadet spreadet wheel, prevents the reel from being rotated to safety belt pull-out direction.
The beneficial effects of the utility model are：Webbing retractor of the present utility model, by setting up tail on piece is boosted
Portion's lever sets up magnet portion on piston-rack, to realize associating for pre-tightening mechanism and mechanical sensing type lockable mechanism, thus
So that pre-tightening mechanism can limit the pull-out of safety belt by mechanical sensing mechanism.Compare and prior art, it is of the present utility model
Webbing retractor, its structure is simpler, more minimizes, and its manufacturing cost and assembly difficulty are also lower.
Brief description of the drawings
Accompanying drawing is to be further understood for providing to of the present utility model, and constitutes a part for specification, and following
Embodiment be used to explain the utility model together, but do not constitute to limitation of the present utility model.In the accompanying drawings：
Fig. 1 is the exploded view of the Webbing retractor described in the embodiment of the utility model one；
Fig. 2 is that the right side of the Webbing retractor when car induction device is not triggered described in the embodiment of the utility model one is regarded
Sensor wrap, sensor base and gear cap are eliminated in figure, figure；
Fig. 3 is that the Webbing retractor described in the embodiment of the utility model one is touched in car induction device with the second triggering mode
Sensor wrap, sensor base and gear cap are eliminated in right view during hair, figure；
Fig. 4 is the sectional view of the car induction device described in the embodiment of the utility model one.
Drawing reference numeral explanation：
1- frameworks；
2- reels, 21- wireline reels；
3- pre-tightening mechanisms, 31- piston-racks, 32- little gears, 33- cylinder bodies, 34- gas generators, 35- clutch frictions
Piece, 36- gear caps；
4- lockable mechanisms, 41- spreadet spreadet wheels, 42- retainers, 43- claws, 44- connection members；
5- machinery sensing mechanisms, 51- car induction devices, 511- boosts piece, 511a- lug bosses, 511b- support shafts, 511c- tails
Portion's lever, 512- metal balls, 513- supports, 513a- support holes, 513b- mounting portions, 52- triggering disks, 521- ratchets, 53- sensings
Device cover, 54- ratchets, 55- sensor bases, 56- back-moving springs.
Embodiment
In order that technical problem, technical scheme and beneficial effect that the utility model is solved are more clearly understood, below
With reference to drawings and Examples, the utility model is further elaborated.It should be appreciated that specific implementation described herein
Example only to explain the utility model, is not used to limit the utility model.
In description of the present utility model, it is to be understood that the orientation of the instruction such as term " on ", " under ", "left", "right"
Or position relationship is, based on orientation shown in the drawings or position relationship, to be for only for ease of description the utility model and simplification is retouched
State, rather than indicate or imply that the device or element of meaning there must be specific orientation, with specific azimuth configuration and operation,
Therefore it is not intended that to limitation of the present utility model.
Embodiment 1
As shown in figure 1, the Webbing retractor of the present embodiment includes framework 1, reel 2, pre-tightening mechanism 3, the and of lockable mechanism 4
Mechanical sensing mechanism 5.
Framework 1, it is fixed on vehicle body, and pre-tightening mechanism 3, lockable mechanism 4 and mechanical sensing mechanism 5 are installed in framework 1
Right side.
Reel 2, it is installed in rotation on framework 1, and it includes wireline reel 21, and wireline reel 21 can revolve with the one of reel 2
Turn, safety belt is wrapped on reel 2, and reel 2 furls or pulled out safety belt by rotating.
Pre-tightening mechanism 3 include cylinder body 33, the gas generator 34 of upper end for being arranged on cylinder body 33, piston-rack 31, can be with
Little gear 32, clutch friction plate 35 and the gear cap 36 for being fixedly mounted on the right side of framework 1 that piston-rack 31 is engaged, piston tooth
Bar 31 is used to drive the direction of reel 2 toward retracting safety belt to rotate.
Lockable mechanism 4 is connected with reel 2, and lockable mechanism 4 is used to prevent reel 2 from rotating toward the direction that safety belt is pulled out, and locks
Locking mechanism 4 includes：
Spreadet spreadet wheel 41, it is fixedly connected with reel 2, and can be rotated integrally with reel 2；
Retainer 42, it is fixedly mounted on the right side of framework 1；
Claw 43, it is rotatably connected on retainer 42, and claw 43 can engage with spreadet spreadet wheel 41, with prevent reel 2 to
Safety belt pull-out direction rotates；
Connection member 44, it is connected with claw 43 and mechanical sensing mechanism 5 respectively, and mechanical sensing mechanism 5 can pass through connection
The position that the driving claw 43 of part 44 never engages with spreadet spreadet wheel 41 turns to the position engaged with spreadet spreadet wheel 41.
Mechanical sensing mechanism 5 is connected with reel 2 and lockable mechanism 4 respectively, and mechanical sensing mechanism 5 includes：
Car induction device 51, the triggering of car induction device 51 can make lockable mechanism 4 work, and prevent what reel 2 was pulled out toward safety belt
Direction rotates, and the triggering mode of car induction device 51 includes the first triggering mode and the second triggering mode；
Disk 52 is triggered, it is fixedly connected by wireline reel 21 with reel 2, triggering disk 52 can be rotated integrally with reel 2, be triggered
The lateral surface of disk 52 is provided with ratchet 521；
Sensor wrap 53, it is connected with the connection member 44, and it can drive claw 43 by connection member 44；
Ratchet 54, it is rotatably connected in sensor wrap 53, by making ratchet 54 engage with ratchet 521, sensor wrap 53
It can be fixedly connected with triggering disk 52；
Sensor base 55, is fixedly mounted on the right side of framework 1；
Back-moving spring 56, is arranged between sensor base 55 and sensor wrap 53；
As shown in figure 4, car induction device 51 includes boosting piece 511, metal ball 512 and support 513.Wherein,
Support 513, its provided with support holes 513a and the mounting portion 513b for bearing metal ball 512, mounting portion 513b with
The contact surface of metal ball 512 is flexure plane；
Piece 511 is boosted, it is contacted with metal ball 512 and is arranged on the top of metal ball 512, and the one end for boosting piece 511 is provided with
Lug boss 511a, the other end is provided with afterbody lever 511c, boosts piece 511 and is provided between lug boss 511a and afterbody lever 511c
Support shaft 511b, support shaft 511b is connected with support holes 513a, and boosting piece 511 can be around support holes 513a in initial position and work
Carry out back rotation between position.
As shown in Fig. 2 ratchet 54 contacts with boosting piece 511 and is arranged on lug boss 511a top, in car induction device 51
When not being triggered, boost piece 511 and be in initial position, ratchet 54 does not engage with ratchet 521.
In the case where pre-tightening mechanism 3 does not work, vehicle acceleration exceed vehicle acceleration limit value when, reel 2 by
To the revolving force toward safety belt pull-out direction.At the same time, car induction device 51 is triggered with the first triggering mode：
Metal ball 512 is rolled because of effect of inertia and risen along mounting portion 513b flexure plane, is boosted piece 511 and is boosted and turned
Move to operating position, lug boss 511a is boosted, and ratchet 54 is also together boosted, the position that ratchet 54 never engages with ratchet 521
The position for turning to and engaging with ratchet 521 is put, sensor wrap 53 is connected as one with triggering disk 52, so sensor wrap 53 can be with
Reel 2 is rotated integrally, and the revolving force that reel 2 is subject to can be delivered to sensor wrap 53.Because sensor wrap 53 passes through connection member
44 are connected with claw 43, so the revolving force that reel 2 is subject to is delivered to claw 43 so that claw 43 never blocks with spreadet spreadet wheel 41
The position of conjunction turns to the position engaged with spreadet spreadet wheel 41, and spreadet spreadet wheel 41 is locked out, to prevent reel 2 from being pulled out to safety belt
Direction rotates.
When vehicle is in emergency（Vehicle collides）When, pre-tightening mechanism 3 is started working, and gas generator 34 discharges
Gas is to drive piston-rack 31 to extend downwardly from, and piston-rack 31 is engaged with little gear 32, the past retracting safety belt of little gear 32
Direction is rotated, in the presence of clutch friction plate 35, and little gear 32 is connected with spreadet spreadet wheel 41, and little gear 32 drives locking tooth
The direction of wheel 41 toward retracting safety belt rotates, when piston-rack 31 stretches out extreme position, the power cut-off of pre-tightening mechanism 3.
After the power cut-off of pre-tightening mechanism 3, safety belt has been tightened up, but passenger still can apply load to safety belt, drive peace
Full band is pulled out, in order to reduce the pull-out amount of safety belt after pre-tightening mechanism 3 works, and car induction device 51 now can be with the second triggering side
Formula is triggered：
As shown in figure 3, when piston-rack 31 stretches out extreme position, end and the afterbody lever 511c of piston-rack 31 connect
Touch, afterbody lever 511c is down pushed away, due to lever principle, lug boss 511a up jack-up boosts piece 511 and turns to working position
Put, ratchet 54 is boosted by lug boss 511a, ratchet 54 engages with ratchet 521.After ratchet 54 engages with ratchet 521, sensor wrap
53 can rotate integrally with reel 2.Because passenger forces safety belt to pull out, reel 2 is by the revolving force toward safety belt pull-out direction.
The revolving force that reel 2 is subject to passes sequentially through triggering disk 52, sensor wrap 53, connection member 44 and is delivered to claw 43 so that claw
43 engage with spreadet spreadet wheel 41, to prevent reel 2 from being rotated to safety belt pull-out direction.
Because sensor base 55 is fixedly mounted on framework 1, and because back-moving spring 56 is arranged on sensor bottom
Between seat 55 and sensor wrap 53, so when sensor wrap 53 is connected with triggering disk 52, sensor wrap 53 is revolved with the one of reel 2
Turn, back-moving spring 56 can be compressed.When sensor wrap 53 not with triggering disk 52 be connected when, sensor wrap 53 be freely rotatable without
Influenceed by reel 2, back-moving spring 56 recovers so that sensor wrap 53 is turned back to when mechanical sensing mechanism 5 does not work residing for it
Position.
It should be noted that the vehicle acceleration limit value described in the present embodiment can design according to specific car two, manufacture and want
Ask setting.
The present embodiment realizes pre-tightening mechanism 3 and mechanical sensing mechanism by increasing afterbody lever 511c on piece 511 is boosted
5 association, so that pre-tightening mechanism 3 can limit the pull-out of safety belt by mechanical sensing mechanism 5.Compared to existing skill
Art, the Webbing retractor of the present embodiment, its structure is simpler, more minimizes, and its manufacturing cost and assembly difficulty are also more
It is low.
Embodiment 2
The present embodiment and the difference of embodiment 1 are that boosting piece 511 does not include afterbody lever 511c, but in piston tooth
The end of bar 31 is provided with magnet portion.When car induction device 51 is triggered with the second triggering mode, piston-rack 31 reaches the limit
During position, the magnet portion is corresponding with the position of metal ball 512, and the magnet portion causes metal ball 512 to be rolled in mounting portion 513b
It is dynamic, and then make it that boosting piece 511 turns to operating position, it is final to prevent safety belt from pulling out.
The present embodiment realizes pre-tightening mechanism 3 and mechanical sensing machine by setting up magnet portion on piston-rack 31, equally
The association of structure 5, equally realizes the purpose of this utility model.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the utility model is to each
Possible combination is planted no longer separately to illustrate.
In addition, can also be combined between a variety of embodiments of the present utility model, as long as it is not disobeyed
Thought of the present utility model is carried on the back, it should equally be considered as content disclosed in the utility model.
Claims (6)
1. a kind of Webbing retractor, including：
Reel, safety belt is wrapped on the reel, and the reel furls or pulled out safety belt by rotating；
Pre-tightening mechanism, it includes piston-rack and cylinder body, and the piston-rack is used to drive the reel toward retracting safety belt
Direction rotates；
Lockable mechanism, it is connected with the reel, and it is used to prevent the reel from rotating toward the direction that safety belt is pulled out；
Mechanical sensing mechanism, it is connected with the reel and lockable mechanism respectively, and the mechanical sensing mechanism includes car induction device,
The triggering of the car induction device can make the lockable mechanism work；
Characterized in that,
The triggering mode of the car induction device includes the first triggering mode and the second triggering mode, when the car induction device is triggered
Afterwards, the mechanical sensing mechanism drives the lockable mechanism work, prevents the reel from being rotated toward the direction that safety belt is pulled out；
First triggering mode is, in the case where the pre-tightening mechanism does not work, when vehicle acceleration adds more than vehicle
During speed limit, the car induction device is triggered；
Second triggering mode is that, in the case where the pre-tightening mechanism works, the piston-rack is stretched from the cylinder body
Go out, when the piston-rack reaches extreme position, the pre-tightening mechanism work is completed, and the car induction device is triggered.
2. Webbing retractor as claimed in claim 1, it is characterised in that the car induction device include metal ball, support and
Boost piece；
The support is provided with support holes and the mounting portion for carrying the metal ball, the contact surface of the mounting portion and metal ball
For flexure plane；
The piece that boosts is contacted with the metal ball and is arranged on above the metal ball, and the piece that boosts can be around the support holes
Carry out back rotation between initial position and operating position；
When the car induction device is not triggered, the piece that boosts is in initial position；When the car induction device is with the first triggering
When mode is triggered, the metal ball is rolled because of effect of inertia and risen along the flexure plane of the mounting portion, described to boost piece quilt
Boost and turn to operating position, it is described to boost piece so that the lockable mechanism prevents the direction that the reel is pulled out toward safety belt
Rotation.
3. Webbing retractor as claimed in claim 2, it is characterised in that the described piece one end that boosts is another provided with lug boss
End is provided with afterbody lever, and the piece that boosts is provided with support shaft, the support shaft and institute between the lug boss and afterbody lever
State support holes and rotate connection；When the piston-rack reaches extreme position, the end of the piston-rack and the afterbody
Lever contact, the afterbody lever is down pushed away, and the lug boss up jack-up, the piece that boosts turns to operating position.
4. Webbing retractor as claimed in claim 2, it is characterised in that the piston-rack end is provided with magnet portion, when
When the piston-rack reaches extreme position, the magnet portion is corresponding with the position of the metal ball, and the magnet portion is drawn
Play the metal ball to roll so that the piece that boosts is boosted, and the piece that boosts turns to operating position.
5. the Webbing retractor as described in claim 3 or 4, it is characterised in that the lockable mechanism includes retainer, locking
Gear, claw and connection member,
The spreadet spreadet wheel is fixedly connected with the reel, and can be rotated integrally with the reel；
The claw is rotatably connected on the retainer, and the claw can engage with spreadet spreadet wheel, with prevent the reel to
Safety belt pull-out direction rotates；
The connection member is connected with the claw and the mechanical sensing mechanism respectively, and the mechanical sensing mechanism can pass through institute
State the position that connection member drives the claw never to engage with the spreadet spreadet wheel and turn to what is engaged with the spreadet spreadet wheel
Position.
6. Webbing retractor as claimed in claim 5, it is characterised in that the mechanical sensing mechanism also includes：
Disk is triggered, it is fixedly connected with the reel, its lateral surface is provided with ratchet；
Sensor wrap, it is connected with the connection member；
Ratchet, it is rotatably connected in the sensor wrap, its with it is described boost piece contact and be arranged on it is described boost above piece,
By making the ratchet engage with the ratchet, the sensor wrap can be fixedly connected with the triggering disk；
When the car induction device is triggered, the piece that boosts turns to operating position, and the ratchet is boosted, the ratchet from
The position not engaged with the ratchet turns to the position engaged with the ratchet, so that the sensor wrap and the triggering
Disk is fixedly connected；The revolving force that reel is subject to passes sequentially through the triggering disk, sensor wrap, connection member and is delivered to the card
Pawl so that the claw engages with the spreadet spreadet wheel, prevents the reel from being rotated to safety belt pull-out direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621301755.6U CN206374715U (en) | 2016-11-30 | 2016-11-30 | A kind of Webbing retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621301755.6U CN206374715U (en) | 2016-11-30 | 2016-11-30 | A kind of Webbing retractor |
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| Publication Number | Publication Date |
|---|---|
| CN206374715U true CN206374715U (en) | 2017-08-04 |
Family
ID=59405862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201621301755.6U Active CN206374715U (en) | 2016-11-30 | 2016-11-30 | A kind of Webbing retractor |
Country Status (1)
| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708816A (en) * | 2019-01-08 | 2019-05-03 | 孙剑军 | Water segregator leakproof water sensor and its working method |
| CN110304013A (en) * | 2018-03-27 | 2019-10-08 | 比亚迪股份有限公司 | Webbing take-up device and vehicle |
| CN111712408A (en) * | 2018-02-23 | 2020-09-25 | 株式会社东海理化电机制作所 | Webbing retractor |
-
2016
- 2016-11-30 CN CN201621301755.6U patent/CN206374715U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111712408A (en) * | 2018-02-23 | 2020-09-25 | 株式会社东海理化电机制作所 | Webbing retractor |
| CN111712408B (en) * | 2018-02-23 | 2022-04-05 | 株式会社东海理化电机制作所 | Webbing retractor |
| CN110304013A (en) * | 2018-03-27 | 2019-10-08 | 比亚迪股份有限公司 | Webbing take-up device and vehicle |
| CN110304013B (en) * | 2018-03-27 | 2021-10-22 | 比亚迪股份有限公司 | Tape winding device and vehicle |
| CN109708816A (en) * | 2019-01-08 | 2019-05-03 | 孙剑军 | Water segregator leakproof water sensor and its working method |
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