CN110481490A - A kind of coiler lockable mechanism and coiler - Google Patents

A kind of coiler lockable mechanism and coiler Download PDF

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Publication number
CN110481490A
CN110481490A CN201910800983.XA CN201910800983A CN110481490A CN 110481490 A CN110481490 A CN 110481490A CN 201910800983 A CN201910800983 A CN 201910800983A CN 110481490 A CN110481490 A CN 110481490A
Authority
CN
China
Prior art keywords
coiler
ratchet
locking
inertial mass
lockable mechanism
Prior art date
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.)
Pending
Application number
CN201910800983.XA
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Chinese (zh)
Inventor
赵轰
谢杰
施炳军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Songyuan Zhejiang Automotive Safety System Ltd By Share Ltd
Original Assignee
Songyuan Zhejiang Automotive Safety System Ltd By Share Ltd
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 Songyuan Zhejiang Automotive Safety System Ltd By Share Ltd filed Critical Songyuan Zhejiang Automotive Safety System Ltd By Share Ltd
Priority to CN201910800983.XA priority Critical patent/CN110481490A/en
Publication of CN110481490A publication Critical patent/CN110481490A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00Safety belts or body harnesses in vehicles
    • B60R22/34Belt retractors, e.g. reels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00Safety belts or body harnesses in vehicles
    • B60R22/34Belt retractors, e.g. reels
    • B60R22/36Belt retractors, e.g. reels self-locking in an emergency

Abstract

The application discloses a kind of coiler lockable mechanism and coiler, wherein coiler lockable mechanism includes: ratchet, inertial mass and elastic component;Limit support and limiting section are provided on ratchet;Inertial mass is located on the radial end face of ratchet, and the relatively described limit support setting of the abutment end of inertial mass, limitation end is located in the limiting section, has the space for accommodating the locking wheel rim between inertial mass and the inner peripheral surface of ratchet;The limit support is fixed in one end of the elastic component, and the other end is connected to the abutment end, and provides the elastic force far from the limit support to the inertial mass;When the elastic component is compressed, the limitation end radially protrudes from the limiting section, and abuts with the locking structure on the locking wheel rim, to make the ratchet that can not continue to rotate.The coiler lockable mechanism structure of the present embodiment is simple, and small volume is conducive to produce in enormous quantities to reduce manufacturing cost.

Description

A kind of coiler lockable mechanism and coiler
Technical field
This application involves automobile equipment technical fields, and in particular to a kind of coiler lockable mechanism and a kind of coiler.
Background technique
Coiler is the core component of car belt, has the function of lock in emergency, can be real in automobile brake Now to the locking of safety belt, thus occupant is fixed on the seat, protect the safety by bus of occupant.
Wherein, what is be directly connected to safety belt is coiler core component, and coiler mandrel is mounted on coiler shell, Coiler mandrel and ratchet assembly cooperate so that the locking tooth of coiler mandrel is engaged with the locking part in retractor bracket, thus Complete locking.But in the prior art, the volume of ratchet assembly is larger, and structure is complex, to make it in rotation It is more heavy, also increase the difficulty of manufacture.
Summary of the invention
The application provides a kind of coiler lockable mechanism, larger with the volume for solving ratchet assembly in the prior art, and ties Structure is complex, thus the problem of keeping it more heavy in rotation, also increase the difficulty of manufacture.
The application provides a kind of coiler lockable mechanism, is arranged between mandrel main body and coiler locking cover, comprising: spine Wheel, inertial mass and elastic component;Wherein,
The ratchet is connected to the connecting pin of the mandrel main body, and is socketed in the locking wheel rim of the coiler locking cover On;Limit support and limiting section are provided on the radial end face of the ratchet;
The inertial mass passes through the rotatable radial end face for being located in the ratchet of the connecting shaft for being located therein portion region On, the both ends of the inertial mass are respectively abutment end and limitation end, the relatively described limit support setting of the abutment end, the limit End processed is located in the limiting section, has the sky for accommodating the locking wheel rim between the inertial mass and the inner peripheral surface of the ratchet Between;
The limit support is fixed in one end of the elastic component, and the other end is connected to the abutment end, and is used to described Property block provide far from it is described limit support elastic force;
When the elastic component is compressed, the limitation end radially protrudes from the limiting section, and with the lock Only the locking structure on wheel rim abuts, to make the ratchet that can not continue to rotate.
Optionally, the ratchet further includes the limit sliding chutes being arranged on the radial end face, and the limit sliding chutes can Limit the movement of the latch in the mandrel main body.
Optionally, the end at the limitation end is set as the locking tooth matched with the locking structure or prismatic protrusion.
Optionally, the limiting section includes the first limit block and the second limit block, first limited block and the second limit Clearance space between block is the swing space at the limitation end.
Optionally, the abutment end includes abutting column and positioning column;The support column for abutting column and the limit support It is oppositely arranged;The spring retention posts of the positioning column and the limit support are oppositely arranged.
Optionally, the elastic component is the spring of column structure, and positioning column is fixed in one end of the spring, and one end connects It is connected to the spring retention posts.
Optionally, the central region of the inertial mass is arc support;The inertial mass passes through the lonely shape support portion It is connected on the central supported boss of the ratchet.
Optionally, the ratchet further includes the central shaft hole that the radial end face center is arranged in, the central axis Hole protrudes from the radial end face;The central supported boss is arranged in the circumferential end faces of the central shaft hole.
The application also provides a kind of coiler, including mandrel main body, coiler locking cover and coiler lockable mechanism, institute Stating coiler lockable mechanism includes: ratchet, inertial mass and elastic component;Wherein,
The ratchet is connected to the connecting pin of the mandrel main body, and is socketed in the locking wheel rim of the coiler locking cover On;Limit support and limiting section are provided on the radial end face of the ratchet;
The inertial mass passes through the rotatable radial end face for being located in the ratchet of the connecting shaft for being located therein portion region On, the both ends of the inertial mass are respectively abutment end and limitation end, the relatively described limit support setting of the abutment end, the limit End processed is located in the limiting section, has the sky for accommodating the locking wheel rim between the inertial mass and the inner peripheral surface of the ratchet Between;
The limit support is fixed in one end of the elastic component, and the other end is connected to the abutment end, and is used to described Property block provide far from it is described limit support elastic force;
When the elastic component is compressed, the limitation end radially protrudes from the limiting section, and with the lock Only the locking structure on wheel rim abuts, to make the ratchet that can not continue to rotate.
Compared with prior art, the application has the following advantages:
The application provides a kind of coiler lockable mechanism, is arranged between mandrel main body and coiler locking cover, comprising: spine Wheel, inertial mass and elastic component;Wherein, the ratchet is connected to the connecting pin of the mandrel main body, and is socketed in the retracting On the locking wheel rim of device locking cover;Limit support and limiting section are provided on the radial end face of the ratchet;The inertial mass is logical It crosses and is located therein on the rotatable radial end face for being located in the ratchet of connecting shaft in portion region, the both ends point of the inertial mass Not Wei abutment end and limitation end, the abutment end limit support relatively is arranged, and the limitation end is located in the limiting section, There is the space for accommodating the locking wheel rim between the inertial mass and the inner peripheral surface of the ratchet;One end of the elastic component is solid Due to the limit support, the other end is connected to the abutment end, and provides to the inertial mass far from the limit support Elastic force;When the elastic component is compressed, the limitation end radially protrudes from the limiting section, and with the locking Locking structure on wheel rim abuts, to make the ratchet that can not continue to rotate.The coiler lockable mechanism structure of the present embodiment Simply, and small volume is conducive to produce in enormous quantities to reduce manufacturing cost.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of coiler provided by the embodiments of the present application;
Fig. 2 is a kind of Structure explosion diagram of coiler provided by the embodiments of the present application;
Fig. 3 is a kind of structural schematic diagram of coiler locking cover provided by the embodiments of the present application;
Fig. 4 is a kind of structural schematic diagram of fixed cover provided by the embodiments of the present application;
Fig. 5 is a kind of structural schematic diagram of the first connecting portion of coiler mandrel provided by the embodiments of the present application;
Fig. 6 is a kind of structural schematic diagram of the second connecting portion of coiler mandrel provided by the embodiments of the present application;
Fig. 7 is a kind of structural schematic diagram of coiler latch assembly provided by the embodiments of the present application;
Fig. 8 is the structural schematic diagram of the latch in coiler latch assembly provided by the embodiments of the present application;
Fig. 9 is a kind of structural schematic diagram of coiler lockable mechanism provided by the embodiments of the present application;
Figure 10 is the structural schematic diagram of the ratchet in coiler lockable mechanism provided by the embodiments of the present application;
Figure 11 is the structural schematic diagram of the inertial mass in coiler lockable mechanism provided by the embodiments of the present application.
Wherein, coiler 100, support frame 1, position limiting structure 11, bolt arrangement 12,
Coiler locking cover 2, cover 21, the first accommodating cavity 211, the second accommodating cavity 212, locking wheel rim 22, locking structure 221, bowl-shape shrinkage pool 23, central pit hole 24, fixed cover 3, third accommodating cavity 31, conical indents 32, cover 33, coiler mandrel 4, Mandrel main body 41, first connecting portion 42, second connecting portion 43, coupled wheel 44, supporting table 45, mounting groove 451, connecting pin 46, branch Support body 461, position-limited wheel 47, connecting pin 48, spacing collar 471 limit slideway 472, coupled wheel 473, support rim 474, wind spring company Spindle 49;
Coiler latch assembly 5, latch 51, connecting column 52, elastic component 53, ring hooking structure 531, clamping portion 54, clamping Mouth 541, support portion 55, coupler construction 551, coiler lockable mechanism 6, ratchet 61, inertial mass 62, abutment end 621 abut column 6211, positioning column 6212 limits end 622, arc support 623, aperture 6231, elastic component 63, central shaft hole 64, central supported Boss 65, connecting shaft 66, limit support 67, spring retention posts 671, support column 672, limiting section 68, the first limited block 681, the Two limited blocks 682, limit sliding chutes 69, wind spring component 7, wind spring end cap 71, wind spring 72, vehicle sense component 8, vehicle sense fixing seat 81, vehicle Feel sensor module 82.
Specific embodiment
Many details are explained in the following description in order to fully understand the application.But the application can be with Much it is different from other way described herein to implement, those skilled in the art can be without prejudice to the application intension the case where Under do similar popularization, therefore the application is not limited by following public specific implementation.
The embodiment of the present application provides a kind of coiler 100, and Fig. 1 is the structure of coiler 100 provided by the embodiments of the present application Schematic diagram.
Referring to figs. 1 and 2, coiler 100 provided by the embodiments of the present application, including support frame 1, coiler locking cover 2, fixed cover 3, coiler mandrel 4, coiler latch assembly 5, coiler lockable mechanism 6 and wind spring component 7 and vehicle sense component 8.Wherein, the mandrel main body 41 of coiler mandrel 4 is arranged in support frame 1, and both ends extend through the limit of the two sides of support frame 1 For bit architecture 11 so that coiler mandrel 4 is arranged on support frame 1, coiler locking cover 2 and fixed cover 3 pass through bolt arrangement respectively 12 are fixedly connected on the two sides of support frame 1, and coiler latch assembly 5 is arranged in coiler locking cover 2, and with coiler mandrel 4 wherein one end connection, the other end of coiler mandrel 4 are connected to wind spring component 7, and wind spring component 7 is located in fixed cover 3, peace Full band is wound in the mandrel main body 41 of coiler mandrel 4.
Specifically, the coiler locking cover 2 of the embodiment of the present application includes: cover 21, cover 21 in conjunction with shown in Fig. 1 to Fig. 3 The bottom surface of inside is provided with locking wheel rim 22, and multiple locking structures 221, locking structure are distributed on the inner peripheral surface of locking wheel rim 22 221 can be the locking tooth or lock groove along inner circumferential EDS maps.Wherein, in the present embodiment, as shown in figure 3, cover 21 has There are the first accommodating cavity 211 and the second accommodating cavity 212, the avris of the first accommodating cavity 211 is arranged in the second accommodating cavity 212, and close The marginal position of cover 21.The whole horizontal cross-section of first accommodating cavity 211 is approximately circle, and the first accommodating cavity 211 is for setting Set locking wheel rim 22 and coiler lockable mechanism 6.Second accommodating cavity 212 is for accommodating vehicle sense component 8, and wherein vehicle sense component 8 wraps Vehicle sense fixing seat 81 and vehicle sense sensor module 82 are included, vehicle sense fixing seat 81 is sleeved in the second accommodating cavity 212, vehicle propagated sensation sensor Component 82 is fixedly mounted in vehicle sense fixing seat 81.
In the present embodiment, as shown in figure 3, locking wheel rim 22 can protrude from the bottom surface setting of cover 21, then locking Wheel rim 22 has the outer surface relative to inner peripheral surface, and the outer surface is smooth state.Locking wheel rim 22 protrudes from cover 21 Bottom surface setting can be in order to match, so that the ratchet 61 of coiler lockable mechanism 6 with the ratchet 61 of coiler lockable mechanism 6 The outer peripheral surface of locking wheel rim 22 can be relied on to rotate, and form locking space with locking wheel rim 22.
Certainly, in other schemes of the present embodiment, locking wheel rim 22 can also be depressed in the bottom surface setting of cover 21 (not Show), there is the locking wheel rim 22 and only inner peripheral surface.At this point, can be provided in the circumferential edge of locking wheel rim 22 Corresponding to the slideway of 61 circumferential edge of ratchet, the width dimensions of the slideway correspond to the thickness of 61 circumferential edge of ratchet, so that The ratchet 61 of coiler lockable mechanism 6 can rely on the slideway of cover 21 to rotate.
Further, in the present embodiment, bowl-shape shrinkage pool 23 is additionally provided on cover 21, bowl-shape shrinkage pool 23 is arranged in cover 21 bottom surface, and be located on the central axis of locking wheel rim 22, the bowl-shape shrinkage pool 23 with the first of mandrel main body 41 for connecting The connecting pin 46 (shown in Fig. 5) in portion 42 connects.Wherein, the bottom of bowl-shape shrinkage pool 23 is additionally provided with central pit hole 24.It is understood that , bowl-shape shrinkage pool 23 can protrude from cover 21 bottom surface setting, can also be depressed in cover 21 bottom surface setting.
Further, in the present embodiment, in conjunction with shown in Fig. 2 and Fig. 4, the fixation that is oppositely arranged with coiler locking cover 2 Cover 3 is for accommodating wind spring component 7, i.e., fixed cover 3 is provided with third accommodating cavity 31, and wind spring component 7 is arranged in the third accommodating cavity In 31.As shown in figure 4, being additionally provided with conical indents 32, which is used for and core on the basal surface position of fixed cover 3 The connecting pin 48 (shown in Fig. 6) of the second connecting portion 43 of shaft body 41 connects.Wherein, conical indents 32 and coiler locking cover 2 On bowl-shape shrinkage pool 23 be coaxially disposed.
It is understood that in other embodiments, bowl-shape shrinkage pool 23 can be set on fixed cover 3, conical indents 32 It can be set on coiler locking cover 2.It will also be appreciated that being only arranged simultaneously on coiler locking cover 2 and fixed cover 3 There are bowl-shape shrinkage pool 23 or conical indents 32.As long as being the claimed model of the application for the assembly with mandrel main body 41 It encloses.
The present embodiment provides a kind of coiler locking covers 2, comprising: the bottom surface of 21 inside of cover 21 and cover is provided with locking Multiple locking structures 221 are distributed on the inner peripheral surface of locking wheel rim 22 in wheel rim 22.Wherein, since locking wheel rim 22 is that setting exists On cover 21, so that coiler locking cover 2 has the function of locking, but also locking wheel rim 22 does not need other structures Support can realize it is firm, to optimize the structure of coiler.
Further, in the present embodiment, in conjunction with shown in Fig. 2, Fig. 5 and Fig. 6, the mandrel main body 41 of coiler mandrel 4 Circumferential end faces are provided with the groove being arranged in array, and safety belt can be made to be wrapped in the circumferential end faces of mandrel main body 41 in this way When, increase frictional force between the two.The both ends of mandrel main body 41 are provided with first connecting portion 42 and second connecting portion 43, the The axial direction of 43 mandrel main body 41 of one interconnecting piece 42 and second connecting portion is arranged.
In the present embodiment, first connecting portion 42 includes the coupled wheel 44 being successively arranged close to mandrel main body 41, supporting table 45 and connecting pin 46.Wherein, it is provided with retention bead in the circumferential end faces of coupled wheel 44, is arranged in the circumferential end faces of supporting table 45 There is at least one mounting groove 451.Second connecting portion 43 include successively close to the position-limited wheel 47 of mandrel main body 41 and connecting pin 48, In, position-limited wheel 47 includes successively close to the spacing collar 471 of mandrel main body 41, limit slideway 472 and coupled wheel 473, spacing collar 471 protrude from the circumferential end faces of mandrel main body 41, and limit slideway 472 is arranged between spacing collar 471 and coupled wheel 473, support The position limiting structure 11 of the side of frame 1 is installed in limit slideway 471, so that promote mandrel main body 41 is installed on branch in the axial direction The stabilization of support 1.In the present embodiment, it in the central axial direction of position-limited wheel 47, is additionally provided with and protrudes from position-limited wheel 47 Support rim 474, the support rim 474 are used to connect the wind spring end cap 71 of wind spring component 7;In support rim 474 and connecting pin Wind spring connecting shaft 49 is additionally provided between 48, wind spring connecting shaft 49 is used to connect the wind spring 72 of wind spring component 7.First connecting portion 42 Connecting pin 46 and second connecting portion 43 connecting pin 48 be coaxially disposed.
In the embodiment of the present application, the connecting pin at the both ends of coiler mandrel 4 can be following structure, specifically, retracting The end of at least one connecting pin of device mandrel 4 is set as the bowl-shape of protrusion, which can be bowl-shape with corresponding cover 21 Shrinkage pool 23 matches;The connecting pin is the connecting pin 46 of first connecting portion 42, referred to as bowl-shape connecting pin;The cover 21 is proximate to The cover 21 of one interconnecting piece 42, referred to as coiler locking cover 2.In the present embodiment, the end of bowl-shape connecting pin is additionally provided with edge Mandrel axial direction protrudes from the supporter 461 of end, wherein supporter 461 can be cuboid either cylindrical body.It is corresponding , the bottom of the bowl-shape shrinkage pool 23 of coiler locking cover 2 corresponding with the end of bowl-shape connecting pin is additionally provided with central pit hole 24, central pit hole 24 is for accommodating supporter 461.
In the present embodiment, the end of the connecting pin opposite with bowl-shape connecting pin is set as cone, which can be with The conical indents 32 of corresponding cover 33 match;The connecting pin is the connecting pin 48 of second connecting portion 43, referred to as taper connection End, the cover 33 are proximate to the cover 33 of second connecting portion 43, referred to as fixed cover 3.It is understood that the present embodiment its In its scheme, the end of the connecting pin opposite with bowl-shape connecting pin is set as the bowl-shape of protrusion, and can be retracting with cover 21 The bowl-shape shrinkage pool 23 of device locking cover 2 matches.It will also be appreciated that being equipped with the whole of the coiler 100 of the coiler mandrel 4 Body structure is also different.
In the embodiment of the present application, the bowl-shape of protrusion is set by the end of at least one connecting pin of coiler mandrel 4, The end can be matched with the bowl-shape shrinkage pool 23 of corresponding cover 21, so that the flexibility of the rotation of coiler mandrel 4 is promoted, with And the noise of coiler mandrel 4 and coiler shell is reduced, and then improve usage experience.
In the application alternative embodiment, the connecting pin at the both ends of coiler mandrel 4 can be following structure (not shown), Specifically, the end of at least one connecting pin of coiler mandrel 4 is set as cone, which can be with corresponding cover 33 Conical indents 32 match;The connecting pin is the connecting pin of first connecting portion 42, referred to as taper connection end, which is to lean on The cover 33 of nearly first connecting portion 42, referred to as fixed cover 3.
In the present embodiment, the end of the connecting pin opposite with taper connection end is set as bowl-shape, end energy of protrusion It is enough to be matched with the bowl-shape shrinkage pool 23 of corresponding cover 21;The connecting pin is the connecting pin of second connecting portion 43, referred to as bowl-shape company End is connect, which is proximate to 43 cover 21 of second connecting portion, referred to as coiler locking cover 2.Wherein, the end of bowl-shape connecting pin It is additionally provided with the supporter that end is protruded from along mandrel axial direction, and coiler locking corresponding with the end of bowl-shape connecting pin The bottom of the bowl-shape shrinkage pool 23 of cover 2 is additionally provided with central pit hole 24, and central pit hole 24 is for accommodating supporter.
It is understood that in other schemes of the present embodiment, the end of the connecting pin opposite with taper connection end It can be set to cone, which can be that the conical indents 32 of fixed cover 3 are matched with cover 33.It is understood that It is that the overall structure of the coiler of the coiler mandrel 4 is installed also to be different.
In the application alternative embodiment, cone is set by the end of at least one connecting pin of coiler mandrel 4, The end can be matched with the conical indents 32 of corresponding cover 33, so that the flexibility of the rotation of coiler mandrel 4 is promoted, with And the noise of coiler mandrel 4 and coiler shell is reduced, and then improve usage experience.
Further, in the present embodiment, in conjunction with shown in Fig. 2, Fig. 7 and Fig. 8, coiler latch assembly 5 is connected to retracting The side of the first connecting portion 42 of device mandrel 4 is particularly located between mandrel main body 41 and the ratchet 61 of coiler lockable mechanism 6. Specifically, coiler latch assembly 5 includes: latch 51, connecting column 52 and elastic component 53;Wherein, the setting of latch 51 exists In the mounting groove 451 of the axial end face of mandrel main body 41, and rotated with mandrel main body 41;Axis of the connecting column 52 along mandrel main body 41 To setting on latch 51, and it is inserted into the limit sliding chutes 69 of ratchet 61;One end of elastic component 53 is fixed on connecting column 52, separately One end is connected to mandrel main body 41, and the elastic force for tending to inner circumferential is provided to latch 51;When ratchet 61 is stopped rotation, if Mandrel main body 41 rotates, then connecting column 52 is moved along limit sliding chutes 69, drives latch 51 to the center far from mandrel main body 41 The periphery of axis is mobile, and finally engages with the position limiting structure of the support frame 1 of coiler 100, to make mandrel main body 41 can not It continues to rotate.
In the present embodiment, latch 51 includes clamping portion 54 and support portion 55, all edges and the mounting groove 451 of support portion 55 Slot bottom cooperation, so that latch 51 be enable to slide in mounting groove 451;Wherein, support portion 55 is set as the hook stretched out Structure 551;Coupler construction 551 protrudes into inside mandrel main body 41, provides limit for latch 51.Certainly, being in others can be real It applies in scheme, support portion 55 can be in the form of a column, and the distal end faces of support portion 55 are set as arc end surface.Clamping portion 54 is provided with Towards the card interface 541 outside mounting groove 451, realized by card interface 541 and the engaging of the position limiting structure 11 on support frame 1, Wherein, in the present embodiment, card interface 541 is arranged to tooth form or concaveconvex structure.It is corresponding, the limit of the side of support frame 1 Structure 11 is also configured as the tooth form that can be engaged or concaveconvex structure.In the present embodiment, clamping portion 54 is at least in following shape It is a kind of: fan-shaped, semicircle and a quarter circle.
Elastic component 53 is arc-shaped circlip, and one end that circlip is connect with connecting column 52 is set as ring hooking structure 531, passes through ring Hooking structure 531 is connected to circlip on connecting column 52.
Coiler latch assembly 5 provided in this embodiment includes: latch 51, connecting column 52 and elastic component 53;Wherein, Latch 51 is arranged in the mounting groove 451 of the axial end face of mandrel main body 41, and rotates with mandrel main body 41;52 edge of connecting column Mandrel main body 41 is axially disposed on latch 51, and is inserted into the limit sliding chutes 69 of ratchet 61;One end of elastic component is fixed on On connecting column 52, the other end is connected to mandrel main body 41, and the elastic force for tending to inner circumferential is provided to latch 51;In 61 quilt of ratchet When stopping operating, if mandrel main body 41 rotates, connecting column 52 is moved along limit sliding chutes 69, and latch 51 is driven to move to periphery It is dynamic, and finally engage with the position limiting structure 11 on the support frame 1 of coiler 100, to make mandrel main body 41 that can not continue to rotate. The coiler latch assembly 5 of the embodiment of the present application passes through the movement of latch 51 when carrying out locking to mandrel main body 41 Locking is completed, coiler latch assembly 5 can be independently of mandrel main body 41, and its small volume, structure is simple, is being promoted The complexity of the manufacture of mandrel main body 41 can also be reduced while locking degree of flexibility.
Further, in the present embodiment, coiler lockable mechanism 6 is used as connecting mandrel main body 41 and coiler locking cover 2 hinge can not only cooperate the latch 51 in mandrel main body 41 to complete the vehicle sense locking of coiler 100, can also match Close the band sense locking that the latch 51 in mandrel main body 41 completes coiler 100.Wherein, vehicle sense locking is to pass through vehicle sense component 8 cooperate with coiler lockable mechanism 6, so that the latch 51 in mandrel main body 41 be made to complete the locking to mandrel main body 41;Band Sense locking is that safety belt band moving mandrel's main body 41 rotates, and when 41 velocity of rotation of mandrel main body is accelerated, can be locked by coiler The braking of locking mechanism 6 makes the latch 51 in mandrel main body 41 complete the locking to mandrel main body 41.
Specifically, in the present embodiment, in conjunction with shown in Fig. 2, Fig. 9 to Figure 11, coiler lockable mechanism 6 include: ratchet 61, Inertial mass 62 and elastic component 63;Wherein, ratchet 61 is connected to the connecting pin of mandrel main body 41, and is socketed in coiler locking cover On 2 locking wheel rim 22.As shown in Figure 10, the groove-like that ratchet 61 is provided in round, the radial end face of ratchet 61 are slot bottom, The circumferential end faces of ratchet 61 are cell wall, the center of radial end face are provided with central shaft hole 64, and correspond to aforementioned, spine The connecting pin of the mandrel main body 41 of 61 connection of wheel is the connecting pin 46 of first connecting portion 42, which protrudes from support frame 1 Position limiting structure 11 setting of ratchet 61 can be made to support thus after the connecting pin 46 is socketed on the central shaft hole 64 of ratchet 61 The outside of frame 1, and then ratchet 61 can be made to be mounted in the first accommodating cavity 211 of coiler locking cover 2.In the present embodiment, Ratchet 61 is socketed on the locking wheel rim 22 of coiler locking cover 2 specifically, the circumferential end faces of ratchet 61 are socketed on locking wheel rim 22, locking wheel rim 22 is accommodated in the recess space of ratchet 61, to form locking space;And the circumferential end faces of ratchet 61 is interior The outer peripheral surface of circumferential surface and locking wheel rim 22 close to.
In the present embodiment, as shown in Figure 10, central supported boss 65, connection are additionally provided on the radial end face of ratchet 61 Axis 66, limit support 67, limiting section 68 and limit sliding chutes 69;Wherein, central supported boss 65 centrally disposed axis hole 64 In circumferential end faces, and central supported boss 65 has recess cambered surface;Connecting shaft 66 is positioned close to the recessed of central supported boss 65 The position of cambered surface is fallen into, and there is therebetween the space of the central region of accommodating inertial mass 62, inertial mass 62 is by being located therein On the rotatable radial end face for being located in ratchet 61 of the connecting shaft 66 in portion region.
In the present embodiment, it limits support 67 and limiting section 68 to be symmetrical arranged centered on central shaft hole 64, wherein limit Support 67 includes spring retention posts 671 and support column 672, and the lower section of support column 672 is arranged in spring retention posts 671, and supports Column 672 is column structure, and opposite spring retention posts 671 have tilt angle.Limiting section 68 includes the first limited block 681 and the Two limited blocks 682 have clearance space between first limited block 681 and the second limited block 682.The setting of limit sliding chutes 69 is limiting The avris of support 67, limit sliding chutes 69 can limit the movement of the latch 51 in mandrel main body 41, i.e., such as above-mentioned latch 51 On 52 one end of connecting column insertion limit sliding chutes 69 in, which can swing in limit sliding chutes 69.
In the present embodiment, the entirety of inertial mass 62 is arc-shaped, and the both ends of inertial mass 62 are respectively abutment end 621 and limitation End 622, the setting of 621 relative limit support 67 of abutment end, limitation end 622 are located in limiting section 68, i.e., limitation end 622 is in the first limit Clearance space between position block 681 and the second limited block 682 is swung.Limitation end 622 is column, and close to 61 inner peripheral surface of ratchet Side be provided with dovetail groove.The central region of inertial mass 62 is arc support 623, is provided with out in arc support 623 Hole 6231, connecting shaft are inserted into the aperture, inertial mass are connected to ratchet 61, and inertial mass 62 passes through lonely shape support portion 623 It is connected on the central supported boss 65 of ratchet 61, has between inertial mass 62 and the inner peripheral surface of ratchet 61 and accommodate locking wheel rim 22 Space.Wherein, the end for limiting end 622 is set as locking tooth or prismatic protrusion, with the locking structure 221 with locking wheel rim 22 It matches, locking structure 221 can be locking tooth or lock groove.
In the present embodiment, the abutment end 621 of inertial mass 62 includes abutting column 6211 and positioning column 6212, abuts column 6211 Column cap be partially flat column, and small volume.The support column 672 for abutting column 6211 and limit support 67 is oppositely arranged;Positioning column 6212 are oppositely arranged with the spring retention posts 671 for limiting support 67.Elastic component 63 is the spring of column structure, one end of elastic component It is fixed on limit support 67, the other end is connected to abutment end 621, and provides the elasticity far from limit support 67 to inertial mass 62 Power, specifically, positioning column 6212 is fixed in one end of spring, the other end is connected to spring retention posts 671, is compressed in spring When, spring can provide the elastic force far from limit support 67 to abutment end 621.In mandrel 41 faster rotational speed of main body, abutment end 621 abutting column 6211 be connected to limit support 67 support column 672, while the positioning column 6212 of inertial mass 62 to limit support 67 671 direction of spring retention posts is drawn close, and when elastic component 63 is compressed, limitation end 622 radially protrudes from limiting section 68, and abutted with the locking structure 221 on locking wheel rim 22, to make ratchet 61 that can not continue to rotate;If 41 turns of mandrel main body Dynamic, then connecting column 52 is moved along limit sliding chutes 69, drives latch 51 mobile to periphery, and the finally support with coiler 100 1 position limiting structure 11 engages on frame, to make mandrel main body 41 that can not continue to rotate.
The embodiment of the present application provides a kind of coiler lockable mechanism 6, comprising: ratchet 61, inertial mass 62 and elastic component 63; Wherein, ratchet 61 is connected to the connecting pin of mandrel main body 41, and is socketed on the locking wheel rim 22 of coiler locking cover 2;Ratchet Limit support 67 and limiting section 68 are provided on 61 radial end face;Inertial mass 62 is by being located therein the connecting shaft 66 in portion region On the rotatable radial end face for being located in ratchet 61, the both ends of inertial mass 62 are respectively abutment end 621 and limitation end 622, are supported Connect end 621 relative limit supports 67 setting, limitation end 622 is located in limiting section 68, the inner peripheral surface of inertial mass 62 and ratchet 61 it Between have accommodate locking wheel rim 22 space;Limit support 67 is fixed in one end of elastic component 68, and the other end is connected to abutment end 621, and the elastic force far from limit support 67 is provided to inertial mass 62;When elastic component 63 is compressed, limitation end 622 is radially Direction protrudes from limiting section 68, and abuts with the locking structure 221 on locking wheel rim 22, to make ratchet 61 that can not continue to turn It is dynamic.6 structure of coiler lockable mechanism of the present embodiment is simple, and small volume is conducive to large quantities of to reduce manufacturing cost Amount production.
The application provides a kind of coiler 100, comprising: mandrel main body 41, coiler latch assembly 5, coiler locking machine Structure 6, and it is provided with the coiler locking cover 2 of locking wheel rim 22, wherein coiler latch assembly 5 includes latch 51 and sets Set the connecting column 52 on latch 51;Latch 51 is arranged in the mounting groove 451 of the axial end face of mandrel main body 41, and with Mandrel main body 41 rotates;Coiler lockable mechanism 6 includes ratchet 61 and the inertial mass 62 being arranged on the radial end face of ratchet, is used to Property block 62 and the inner peripheral surface of ratchet 61 between have accommodate locking wheel rim 22 space;Ratchet 61 is connected to the company of mandrel main body 41 End 46 is connect, and is socketed on the locking wheel rim 22 of coiler locking cover 2;The limitation end 622 of inertial mass 51 is located at the limit of ratchet 61 Position portion 68;Connecting column 52 is along the limit sliding chutes 69 for being axially inserted into ratchet 61 of mandrel main body 41;Limit end 622 radially Limiting section 68 is protruded from, and is abutted with the locking structure 221 on locking wheel rim 22, so that ratchet 61 can not continue to rotate, if core Shaft body 41 rotates, then connecting column 52 is moved along limit sliding chutes 69, and it is mobile to periphery to drive latch 51, and finally and coiler Position limiting structure 11 on 100 support frame 1 engages, to make mandrel main body 41 that can not continue to rotate.The latch of the present embodiment 51 are arranged in mandrel main body 41, locking can be completed by the movement of latch 51, so that the volume of mandrel main body 41 be made to subtract Small, structure is simple;And inertial mass 62 is to can be completed by cooperating with the locking wheel rim 22 of coiler locking cover 2 to ratchet 61 locking reduces being separately provided for locking wheel rim 22, to optimize the structure of coiler 100.
In order to clearly demonstrate the working principle of coiler provided by the embodiments of the present application, below with reference to specific application Scene is illustrated.
Application scenarios one: for running car on smooth road surface, occupant is with belt in vehicle, when automobile suddenly encounters Emergency brake when barrier, at this point, the inertial mass 62 in coiler lockable mechanism 6 starts to move due to the effect by inertia force Dynamic, i.e. the abutting column 6211 of the abutment end 621 of inertial mass 62 is connected to the support column 672 of limit support 67, while inertial mass 62 Positioning column 6212 to limit support 67 671 direction of spring retention posts draw close, when elastic component 63 is compressed, limit end 622 Limiting section 68 is radially protruded from, and is abutted with the locking structure 221 on locking wheel rim 22, to make ratchet 61 can not be after Continuous rotation.After ratchet 61 no longer rotates, since occupant can be by the inertia of itself to drive safety belt, so that connection The mandrel main body 41 of safety belt continues to rotate, so that the latch 51 being arranged in the mounting groove 451 of mandrel main body 41 continues to move Dynamic, due to the movement of latch 51, then the connecting column 52 being connected on latch 51 is moved along limit sliding chutes 69, drives latch 51 is mobile to periphery, and finally engages with the position limiting structure 11 on the support frame 1 of coiler 100, to make 41 nothing of mandrel main body Method continues to rotate, and then limits the sliding of safety belt, has ensured the safety of occupant.
Application scenarios two: for running car on non-smooth road surface, occupant is with belt in vehicle, when automobile is run suddenly When winnowing with a dustpan, at this point, the limitation arm in vehicle sense component 8 is lifted by center of gravity ball, limitation arm is connected on the limiting tooth of 61 periphery of ratchet, from It and continue to rotate ratchet 61 can not.After ratchet 61 no longer rotates, since occupant can be by the inertia of itself with by safety belt It drives, so that the mandrel main body 41 of safety harness continues to rotate, so as to be arranged in the mounting groove 451 of mandrel main body 41 Latch 51 continue to move to, due to the movement of latch 51, be then connected to the connecting column 52 on latch 51 along limit sliding chutes 69 is mobile, it is mobile to periphery to drive latch 51, and finally engage with the position limiting structure 11 on the support frame 1 of coiler 100, from And continue to rotate mandrel main body 41 can not, and then limit the sliding of safety belt, ensure the safety of occupant.
Although the application is disclosed as above with preferred embodiment, it is not for limiting the application, any this field skill Art personnel are not departing from spirit and scope, can make possible variation and modification, therefore the guarantor of the application Shield range should be subject to the range that the claim of this application defined.

Claims (9)

1. a kind of coiler lockable mechanism is arranged between mandrel main body and coiler locking cover characterized by comprising spine Wheel, inertial mass and elastic component;Wherein,
The ratchet is connected to the connecting pin of the mandrel main body, and is socketed on the locking wheel rim of the coiler locking cover; Limit support and limiting section are provided on the radial end face of the ratchet;
The inertial mass is by the rotatable radial end face for being located in the ratchet of the connecting shaft for being located therein portion region, institute The both ends for stating inertial mass are respectively abutment end and limitation end, the relatively described limit support setting of the abutment end, the limitation end In the limiting section, there is the space for accommodating the locking wheel rim between the inertial mass and the inner peripheral surface of the ratchet;
The limit support is fixed in one end of the elastic component, and the other end is connected to the abutment end, and to the inertial mass Elastic force far from the limit support is provided;
When the elastic component is compressed, the limitation end radially protrudes from the limiting section, and with the locking wheel Locking structure on circle abuts, to make the ratchet that can not continue to rotate.
2. coiler lockable mechanism according to claim 1, which is characterized in that the ratchet further includes being arranged in the diameter Limit sliding chutes on end face, the limit sliding chutes can limit the movement of the latch in the mandrel main body.
3. coiler lockable mechanism according to claim 1, which is characterized in that the end at the limitation end is set as and institute State the locking tooth or prismatic protrusion that locking structure matches.
4. coiler lockable mechanism according to claim 1, which is characterized in that the limiting section include the first limited block and Second limited block, the clearance space between the first limit block and the second limit block are the swing space at the limitation end.
5. coiler lockable mechanism according to claim 1, which is characterized in that the abutment end includes abutting column and positioning Column;The support column of the abutting column and the limit support is oppositely arranged;The spring of the positioning column and the limit support is fixed Position column is oppositely arranged.
6. coiler lockable mechanism according to claim 5, which is characterized in that the elastic component is the bullet of column structure Spring, positioning column is fixed in one end of the spring, and one end is connected to the spring retention posts.
7. coiler lockable mechanism according to claim 1, which is characterized in that the central region of the inertial mass is arc Support portion;The inertial mass is connected on the central supported boss of the ratchet by the lonely shape support portion.
8. coiler lockable mechanism according to claim 7, which is characterized in that the ratchet further includes being arranged in the diameter To the central shaft hole of end face center position, the central shaft hole protrudes from the radial end face;The central supported boss setting In the circumferential end faces of the central shaft hole.
9. a kind of coiler, which is characterized in that described including mandrel main body, coiler locking cover and coiler lockable mechanism Coiler lockable mechanism includes: ratchet, inertial mass and elastic component;Wherein,
The ratchet is connected to the connecting pin of the mandrel main body, and is socketed on the locking wheel rim of the coiler locking cover; Limit support and limiting section are provided on the radial end face of the ratchet;
The inertial mass is by the rotatable radial end face for being located in the ratchet of the connecting shaft for being located therein portion region, institute The both ends for stating inertial mass are respectively abutment end and limitation end, the relatively described limit support setting of the abutment end, the limitation end In the limiting section, there is the space for accommodating the locking wheel rim between the inertial mass and the inner peripheral surface of the ratchet;
The limit support is fixed in one end of the elastic component, and the other end is connected to the abutment end, and to the inertial mass Elastic force far from the limit support is provided;
When the elastic component is compressed, the limitation end radially protrudes from the limiting section, and with the locking wheel Locking structure on circle abuts, to make the ratchet that can not continue to rotate.
CN201910800983.XA 2019-08-28 2019-08-28 A kind of coiler lockable mechanism and coiler Pending CN110481490A (en)

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Publication number Priority date Publication date Assignee Title
CN111674355A (en) * 2020-06-23 2020-09-18 浙江松原汽车安全系统股份有限公司 Mounting structure and coiler

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CN109591757A (en) * 2018-11-26 2019-04-09 浙江顶昌汽车部件有限公司 A kind of automobile safety belt retractor equipped with anti-locking device
CN210941688U (en) * 2019-08-28 2020-07-07 浙江松原汽车安全系统股份有限公司 Coiler locking mechanism and coiler

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Publication number Priority date Publication date Assignee Title
JP2003212086A (en) * 2002-01-25 2003-07-30 Ashimori Ind Co Ltd Retractor for seat belt
CN201511925U (en) * 2009-08-05 2010-06-23 重庆光大产业有限公司 Automotive safety belt limiting type retractor
CN104590201A (en) * 2013-10-30 2015-05-06 比亚迪股份有限公司 Belt induction sensitive device of safety belt retractor and safety belt retractor
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Publication number Priority date Publication date Assignee Title
CN111674355A (en) * 2020-06-23 2020-09-18 浙江松原汽车安全系统股份有限公司 Mounting structure and coiler
CN111674355B (en) * 2020-06-23 2024-05-03 浙江松原汽车安全系统股份有限公司 Mounting structure and coiler

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