CN207141005U - Coiler - Google Patents

Abstract

The utility model provides a kind of coiler, escapement is set to limit spring in the outer face of disk, escapement limitation spring arrangement swingable between stage clip bearing and escapement, i.e., when escapement is swung closer or far from stage clip bearing, escapement limitation spring only one end offsets with stage clip bearing or escapement.Escapement limits spring and offseted by its first limitation end with stage clip bearing, and when ribbon pulls out, disk rotational is offseted by stage clip bearing and escapement limitation spring, and its second limitation end separates with the swinging end of escapement, and escapement is swingable, recovers latch functions.When ribbon reclaims, the second limitation end of escapement limitation spring offsets with escapement, and escapement is pushed into it and offseted with latch, avoids in vehicle operation, the swing noise of escapement.The escapement limitation spring that the utility model is compressed by setting to escapement, depart from the latch functions for ensureing escapement with escapement when coiler works, and it is spacing to escapement progress when coiler stops operating, avoid the caused in-car noise that freely swings of escapement.

Description

Coiler

Technical field

Technical field of automobile accessories is the utility model is related to, more specifically to a kind of coiler.

Background technology

Coiler, refer to the coiler of lock in emergency function, be the core component of car belt.

Winding up apparatus for safety belt in vehicles, the part of its belt acceleration-sensing are by circular take-up spool and at least one solid Dingan County is formed mounted in the ratchet of the shaft end, and circular take-up spool is actively through between the mainboard of winding storehouse both sides, is set on mainboard By locking component is formed by ratchet and ratchet.

As shown in figure 1, Fig. 1 is the internal structure schematic diagram of coiler in the prior art.

Escapement 3` is set inside the support 2` and mandrel component 1` for setting support to coordinate inside coiler, mandrel component 1`, Escapement 3` freely swings in disk 4`, is supported by escapement stage clip 5`.Disk 4 with mandrel component 1` is set on support 2` Car the sense component 6`, car sense component 6` that limiting tooth on ` coordinates by its internal steel ball 7` inertia promote car sense component 6` with Disk 4` clampings.For conventional security band after vehicle body is installed on, steel ball 7` and escapement 3` are in relative free state, are run by vehicle Influence, the two sends sound with the parts collision of its structure connection respectively, and this interference sound easily makes user's generation not relax Clothes sense.

Therefore, the noise jamming of coiler internal structure how is reduced, is that current those skilled in the art are urgently to be resolved hurrily Problem.

Utility model content

In view of this, the utility model provides a kind of coiler, to reduce the noise jamming of coiler internal structure.

In order to achieve the above object, the utility model provides following technical scheme：

A kind of coiler, including support and the mandrel component being arranged in the support, are arranged at the mandrel component end Escapement in portion's disk, the disk is interior to set the escapement stage clip for flexibly supporting the escapement, and supports the escapement stage clip Stage clip bearing；

Also include the outer face for being arranged at the disk, and can be limited around the escapement of the axis of rotation of the mandrel component Spring, when the ribbon that the escapement limitation spring is included in the mandrel component pulls out, limited with the stage clip bearing offsets first End；When the ribbon reclaims, end is limited with the swinging end of the escapement offsets second；

Spring is swingable is arranged between the stage clip bearing and the escapement for escapement limitation.

Preferably, in above-mentioned coiler, the end set of the mandrel component has end cap, the peace of the escapement limitation spring Dress end is arranged in the end cap.

Preferably, in above-mentioned coiler, the escapement limitation spring includes the limitation spring body of open annular structure, described The both ends of limitation spring body openings are respectively arranged with the first limited post and the second limited post stretched into the disk, the end cap The interior chute that the accommodating escapement limitation spring is set.

Preferably, in above-mentioned coiler, the plate-like being crimped on the limitation spring body is additionally provided with the end cap Block, the neck of accommodating first limited post and second limited post, the plate-like gear are provided with the plate-like block Block is rotatably arranged in the end cap.

Preferably, in above-mentioned coiler, the deep gouge for housing the plate-like block is set in the end cap, the deep gouge Edge, which is provided with, to be overlapped in the edge of the plate-like block spacing limit card block is carried out to it, and is opened along the radial direction of the deep gouge If groove.

Preferably, in above-mentioned coiler, in addition to spacing car sense limits device is carried out to the car sense component on support, The car sense limits device includes being set up in the core sleeve of the mandrel component and extending out to the linking arm of the disk outer rim, And it is arranged at the limit arm spring that the linking arm swinging end compressed or separated cooperation with the car sense arm of the car sense component；

It is provided with the end cap spacing to linking arm progress when the linking arm and the car sense arm compress First stopping means, and the second spacing spacing dress is carried out to the linking arm when the linking arm separates with the car sense arm Put.

Preferably, in above-mentioned coiler, the linking arm is arranged on the outer face of the end cap, is opened on the end cap It is communicated with swinging hole, first stopping means and second stopping means to the limit arm spring of the car sense arm to be arranged at Limiting plate on the end face outer face.

Preferably, in above-mentioned coiler, the linking arm includes the terminal pad being connected in the core sleeve, is set in The terminal pad outer ring and the connecting rod affixed with the limit arm spring；The connection end of the connecting rod, which includes embracing, is located at the connection The first connecting portion and second connecting portion of disk radially opposite sides, are additionally provided between the first connecting portion and the second connecting portion The circular arc lock spring that clamping direction to the two is locked.

Preferably, in above-mentioned coiler, the limit arm spring is the circle being arranged between the disk and the car sense arm Arc spring leaf, the outside of the reed and the end of the car sense arm offset.

Preferably, in above-mentioned coiler, the limiting plate is around the ring-type limiting plate for being arranged at linking arm circumference, ring The cover plate being covered on the linking arm is additionally provided with described in shape on limiting plate.

Coiler provided by the utility model, including support and the mandrel component being arranged in support, are arranged at mandrel group Escapement in part end disc, the interior escapement stage clip that resilient support escapement is set of disk, and the stage clip bearing of support escapement stage clip. Mandrel component is supported by support, ribbon is withdrawn or pulled open in the rotation of mandrel component, the disk of mandrel component end, is set in disk Escapement, escapement stage clip and stage clip bearing that action of the escapement to ribbon coordinates are put, passes through mandrel component and the cooperation pair of car sense component Coiler snap-fit.

Also include the outer face for being arranged at disk, and spring, escapement limit can be limited around the escapement of the axis of rotation of mandrel component When the ribbon that spring processed is included in mandrel component pulls out, end is limited with stage clip bearing offsets first；When ribbon reclaims, with escapement Swinging end offset second limitation end；Spring is swingable is arranged between stage clip bearing and escapement for escapement limitation.Due to escapement Swingable is arranged in disk, sets escapement to limit spring in the outer face of disk, escapement limit spring in stage clip bearing and When swingable arrangement between escapement, i.e. escapement are swung closer or far from stage clip bearing, escapement limitation spring only one end and stage clip branch Seat or escapement offset.Escapement limits spring and offseted by its first limitation end with stage clip bearing, and when ribbon pulls out, disk rotational is by pressing Spring bearing offsets with escapement limitation spring, and its second limitation end separates with the swinging end of escapement, and escapement is swingable, recovers locking Function.

Conversely, when the second limitation end of escapement limitation spring offsets with escapement, escapement is pushed into it and offseted with latch, keeps away Exempt from vehicle operation, the swing noise of escapement.The escapement that the utility model is compressed by setting to escapement limits spring, Depart from the latch functions for ensureing escapement with escapement when coiler works, and escapement is limited when coiler stops operating Position, the caused in-car noise that freely swings of escapement is avoided, improve the comfortableness of product.

Brief description of the drawings

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work Under, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the internal structure schematic diagram of coiler in the prior art；

Fig. 2 is the internal structure exploded perspective view of coiler provided by the utility model；

Fig. 3 is the work structure diagram that mandrel component limits spring with escapement in Fig. 2；

Fig. 4 is the attachment structure schematic diagram that escapement limits spring and end cap in Fig. 1；

Fig. 5 is the structural representation that arm spring is limited in Fig. 1；

Fig. 6 is the structural representation of reed in Fig. 5.

Embodiment

The utility model discloses a kind of coiler, reduces the noise jamming of coiler internal structure.

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clear, complete description, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on embodiment of the present utility model, those of ordinary skill in the art institute under the premise of creative work is not made The every other embodiment obtained, belong to the scope of the utility model protection.

As shown in figs 2-4, Fig. 2 is the internal structure exploded perspective view of coiler provided by the utility model；Fig. 3 is figure The work structure diagram of mandrel component and escapement limitation spring in 2；Fig. 4 is the attachment structure that escapement limits spring and end cap in Fig. 1 Schematic diagram；Fig. 5 is the structural representation that arm spring is limited in Fig. 1；Fig. 6 is the structural representation of reed in Fig. 5.

The utility model provides a kind of coiler, including support 8 and the mandrel component 1 being arranged in support 8, is arranged at Escapement 11 in the end disc 13 of mandrel component 1, the interior escapement stage clip that resilient support escapement is set of disk 13, and support escapement pressure The stage clip bearing 12 of spring.Mandrel component 1 is supported by support 8, ribbon, mandrel component 1 are withdrawn or pulled open in the rotation of mandrel component 1 The disk 13 of end, escapement 11, escapement stage clip and the stage clip bearing 12 that the interior action for setting escapement to ribbon of disk 13 coordinates, Coordinated by mandrel component 1 and car sense component 9 to coiler snap-fit.

Also include the outer face for being arranged at disk 13, and spring 5, pendulum can be limited around the escapement of the axis of rotation of mandrel component 1 When the ribbon that wheel limitation spring 5 is included in mandrel component pulls out, end is limited with stage clip bearing 12 offsets first；Reclaimed in ribbon When, limit end with the swinging end of escapement 11 offsets second；Escapement limitation spring 5 it is swingable be arranged at stage clip bearing 12 and escapement Between 11.It is arranged on because escapement 11 is swingable in disk 13, sets escapement to limit spring 5 in the outer face of disk 13, Escapement limitation spring 5 arrangement swingable between stage clip bearing 12 and escapement 11, i.e. escapement 11 are swung closer or far from stage clip branch During seat 12, escapement limitation spring 5 only one end offsets with stage clip bearing or escapement.Escapement limits spring 5 by its first limitation end and stage clip Bearing 12 is offseted, and when ribbon pulls out, disk 13 rotates to be offseted by stage clip bearing 12 and escapement limitation spring 5, its second limitation end Separated with the swinging end of escapement 11, escapement 11 is swingable, recovers latch functions.

Conversely, when the second limitation end of escapement limitation spring 5 offsets with escapement 11, escapement 11 is pushed into itself and latch 14 Offset, avoid in vehicle operation, the swing noise of escapement 11.What the utility model was compressed by setting to escapement 11 Escapement limits spring 5, departs from the latch functions for ensureing escapement 11 with escapement 11 when coiler works, and stop operating in coiler When escapement 11 is carried out it is spacing, avoid the freely swinging of escapement 11 caused by in-car noise, improve the comfortableness of product.

In the specific embodiment of this case one, the end set of mandrel component 1 has end cap 6, and escapement limits the installation end of spring 5 It is arranged in end cap 6.The rotation of escapement limitation spring 5 is pushed away by the forward or reverse of disk 13 by escapement 11 or stage clip bearing 12 Turn is moved, i.e., it is asynchronous with the rotation of mandrel component 1, in order to reduce the complexity to the escapement limitation rotational structure of spring 5, will be put The installation end of wheel limitation spring 5 is arranged in end cap 6.

In the specific embodiment of this case one, escapement limitation spring 5 includes the limitation spring body 53 of open annular structure, limitation The both ends that spring body 53 is open are respectively arranged with the first limited post 51 and the second limited post 52 stretched into disk, are set in end cap 6 Put the chute of accommodating escapement limitation spring 5.Escapement limitation spring 5 be open annular spring, the opening setting of limitation spring body 53 the One limited post 51 and the second limited post 52, the first limited post 51 and the second limited post 52 are extend into disk 13, in rotation process In offseted with escapement 11 and stage clip bearing 12.Because escapement limitation spring 5 is open annular structure, its first limited post 51 or the second When limited post 52 is squeezed, the spring-return power of escapement limitation spring 5 is limitation spring 53 restoring force radially of body.Due to Escapement limitation spring 5 need to be promoted by stage clip bearing 12 with the rotation of mandrel component 1 and rotated in end cap 6, setting and escapement in end cap 6 Limit the chute that spring 5 coordinates.Chute could be arranged to the annular groove of the loop configuration of accommodating escapement limitation spring 5, can also set For with limiting the diameter identical circle deep gouge of spring body 53.

Due to setting the escapement stage clip flexibly supported to escapement 11, escapement limitation spring 5 between stage clip bearing 12 and escapement 11 The first limited post 51 and the second limited post 52 need stable support.By the support end of the limited post 51 of escapement 11 and first Face is arranged to the circular arc end face of the swinging end of escapement 11, extended seat 121, the support end of extended seat are extended with stage clip bearing 12 Face is offseted with the second limited post 52, and the stable of the second limited post 52 is supported so as to realize.Preferably, escapement limitation spring 5 is steel The open annular limitation spring of silk material matter, the diameter of escapement limitation spring 5 are not more than φ 0.6, and the driving force of escapement limitation spring 5 is not more than 7N。

In the specific embodiment of this case one, the plate-like block 4 being crimped on limitation spring body 53 is additionally provided with end cap 6, The neck 41 of the accommodating limited post 52 of first limited post 51 and second is provided with plate-like block 4, plate-like block 4 is rotatably set It is placed in end cap 6.Due to escapement limitation spring 5 be open annular structure, its limited post 52 of the first limited post 51 and second by During extruding, limitation spring body 53 deforms upon, and easily deviates from the chute on end cap 5, is set in end cap 5 and is crimped on limitation Plate-like block 4 on spring body 53, for the internal diameter of plate-like block 4 not less than the internal diameter of limitation spring body 53, end cap 6 is interior to set clamping The clamping structure of plate-like block 4, because the first limited post 51 and the second limited post 52 are arranged at the opening position of limitation spring body 53 Put, accordingly, corresponding first limited post 51 of plate-like block 4 and the position of the second limited post 52 set neck 41, the spacing of neck 41 It is identical with the spacing of the first limited post 51 and the second limited post 52, therefore promote the first limited post 51 or the mistake of the second limited post 52 Cheng Zhong, plate-like block 4 can limit the synchronous rotation in end cap 6 of rotation of spring 5 with escapement.

Specifically, the deep gouge of accommodating plate-like block 4 is set in end cap 6, and the edge of deep gouge, which is provided with, is overlapped in plate-like block 4 Edge carry out spacing limit card block 61 to it, and the groove 62 that opens up of radial direction along deep gouge.Deep gouge is corresponding plate-like block 4 The circular deep gouge of external diameter, the side edge of the inwall and plate-like block 4 of circular deep gouge are touched, and ensure that plate-like block 4 can be heavy Freely rotated in groove, to avoid plate-like block 4 from freely being rotated by larger friction effects mandrel component 1.It is meanwhile heavy The edge of groove sets limit card block 61, and plate-like block 4 is squeezed into deep gouge by way of pressing, and limit card block 61 is along deep gouge Radially-inwardly stretch out, the axial end progress to plate-like block 4 is spacing.Can be to the plate-like block that is installed in deep gouge in order to realize 4 is detachable, and radially outwardly directed groove 62 is opened up in the inwall of deep gouge, can utilize the works such as screwdriver by groove 62 Tool, by plate-like block 4 by being removed in deep gouge.

In the specific embodiment of this case one, in addition to spacing car sense limits device is carried out to the car sense component 9 on support 8 3, car sense limits device 3 includes being set up in the core sleeve 15 of mandrel component 1 and extending out to the linking arm of the outer rim of disk 13, and sets It is placed in the limit arm spring 36 that linking arm swinging end compressed or separated cooperation with the car sense arm of car sense component 9.It is provided with end cap 6 even Connect and carry out the first spacing stopping means when arm compresses with car sense arm to linking arm, and when linking arm separates with car sense arm to even Connect arm and carry out the second spacing stopping means.

The structure of generation noise in coiler includes the structure of escapement 11 and car sense component 9.Escapement 11 is limited by escapement The compression of spring 5, its caused noise can be controlled effectively.Sensitive ball in car sense component 9 promotes car under inertial states Sense arm contacts with the outer rim of disk 13 produces noise.

Car sense arm car sense component 9 is carried out by car sense limits device 3 it is spacing, including linking arm and limit arm spring, linking arm It is set up in the core sleeve of mandrel component, the swing of certain angle can occurs by the drive of core sleeve 15.The swing of linking arm End extends the outer rim of disk 13, and its end set limit arm spring 16, linking arm is when swinging with the first pendulum compressed to car sense arm Dynamic position, and rotate with after the disengaging of car sense arm, the second spacing swing position is carried out to its swing position.Linking arm is set up in core On axle sleeve 15 and the outer face of disk 13 is extend out to, by the first swing position and the second swing position of linking arm, passes through setting Carried out in the first stopping means on end cap 6 and the second stopping means spacing.In the present embodiment, mandrel component 1 and linking arm Between be sliding contact, its drive connection arm swing after, between mandrel component 1 and linking arm i.e. freely rotate.

Specifically, linking arm is arranged on the outer face of end cap 6, and the limit arm spring for being communicated to car sense arm is offered on end cap 6 Hole 64 is swung, the first stopping means and the second stopping means are the limiting plate 65 being arranged on end cap outer face.Inside end cap 6 The compactedness of structure between disk 13, linking arm is arranged to the outer face of end cap 6.The outer end of end cap 6 is stretched out by core sleeve 15 Face, linking arm slide on the surface of end cap 6, simultaneously as limit arm spring need to offset with car sense arm, are set on end cap 6 through end The limit arm spring of the thickness direction of lid 6 swings hole 64, and limit arm spring 36 swings in the oscillating stroke in hole 64 in limit arm spring and swung.It is corresponding The oscillating stroke of arm spring 36 is limited, the first stopping means and the second stopping means are set on the outer face of end cap 6, the two spacing The position arm spring 36 that is limited is rocked to swing position corresponding to linking arm when limit arm spring swings 64 both ends of hole.

In the specific embodiment of this case one, linking arm includes the terminal pad 31 being connected in core sleeve 15, is set in connection The outer ring of disk 31 and the connecting rod 32 affixed with limit arm spring 36；The connection end of connecting rod 32, which includes embracing, is located at the radially opposite sides of terminal pad 31 First connecting portion 33 and second connecting portion 34, be additionally provided between first connecting portion 33 and second connecting portion 34 to the two Clamp the circular arc lock spring 35 that direction is locked.Adapt to connection arm swing certain angle rear mandrel set 15 and linking arm Free rotational structure, the attachment structure of linking arm, which is set, includes terminal pad 31 and the two parts of connecting rod 32, terminal pad 31 and core Axle sleeve 15 connects；Terminal pad 15 is affixed by connecting rod 32, and the connection end of connecting rod 32 and terminal pad 31, which includes embracing, is located at terminal pad The first connecting portion 33 and second connecting portion 34 of the both sides of 31 radial directions, by first connecting portion 33 and second connecting portion 34 to connection The edge clamping of the radial direction of disk 31, meanwhile, in order to avoid the multiple rotation of terminal pad 31 and core sleeve 15 causes terminal pad 31 and the Effective clamping structure can not be gone between one connecting portion 33 and second connecting portion 34, is connected by the lock spring 35 of circular arc to first Socket part 33 and second connecting portion 34 are locked, and the first locking end of lock spring 35 is connected with first connecting portion 33, the second locking End is connected with second connecting portion 34, the holding side of the elastic force direction of lock spring 35 along first connecting portion 33 and second connecting portion 34 To the big to the enclasping force of terminal pad 31 and the coupling mechanism force of lock spring 35 of first connecting portion 33 and second connecting portion 34 can be set It is small so that when driving terminal pad 31 to rotate the rotation of certain angle occurs for core sleeve 15 between terminal pad 31 and connecting rod 32 Displacement, so as to reduce the impact of the stopping means of connecting rod 32 and first and the second stopping means, the structure for improving linking arm is steady It is qualitative.Lock spring 35 is the arc spring silk of semi-circular structure, is set in first connecting portion 33 and second connecting portion 34 by lock spring 35 carry out spacing limiting bracket 37, spacing along its axial swing progress to lock spring 35.

In the specific embodiment of this case one, limit arm spring 36 is the circular arc reed being arranged between disk 13 and car sense arm, The outside of reed and the end of car sense arm offset.Limit arm spring 36 extend out to the outer rim of disk 13, and it is circular arc reed, limits arm spring 36 between disk 13 and car sense arm, avoids limiting arm spring 36 and producing with the limiting tooth of the outer rim of disk 13 when swinging interfering.Together The arc-shaped structure of time limit arm spring 36, its arc bottom and the end of car sense arm offset, and realize compression of the limit arm spring 36 to car sense arm.Even Extension bar 32 is injection structure, and limit arm spring 36 is metal structure, and limit arm spring 36 includes the ear 361 supported, limits arm spring 36 ear 36 is connected as a single entity by being molded with connecting rod 32.

In the specific embodiment of this case one, limiting plate 63 is around the ring-type limiting plate for being arranged at linking arm circumference, annular The cover plate 7 being covered on linking arm is additionally provided with limiting plate.Due to opening up the limit arm spring pendulum through its thickness direction on end cap 7 Dynamic hole 64, in order to improve the security of the internal part of disk 13, avoids external dust from dropping into inside disk 13, by limiting plate 63 Be provided around the ring-type limiting plate of the outer face one of end cap 6 circle, the swing of the inwall of ring-type limiting plate to linking arm carry out it is spacing, And linking arm is protected.Cover plate 7 is set in annular stop plate, so as to which the internal part of coiler is in into sealed environment In.

The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The most wide scope consistent with features of novelty.

Claims (10)

1. a kind of coiler, it is characterised in that including support and the mandrel component being arranged in the support, be arranged at the core Escapement in shaft assembly end disc, the disk is interior to set the escapement stage clip for flexibly supporting the escapement, and the support pendulum Take turns the stage clip bearing of stage clip；

Also include the outer face for being arranged at the disk, and spring, institute can be limited around the escapement of the axis of rotation of the mandrel component State escapement limitation spring be included in the mandrel component ribbon pull out when, with the stage clip bearing offset first limitation end； During the ribbon recovery, end is limited with the swinging end of the escapement offsets second；

Spring is swingable is arranged between the stage clip bearing and the escapement for escapement limitation.

2. coiler according to claim 1, it is characterised in that the end set of the mandrel component has end cap, described The installation end of escapement limitation spring is arranged in the end cap.

3. coiler according to claim 2, it is characterised in that the escapement limitation spring includes the limit of open annular structure Spring body processed, the both ends of the limitation spring body openings are respectively arranged with the first limited post stretched into the disk and the second limit Position post, the interior chute that the accommodating escapement limitation spring is set of the end cap.

4. coiler according to claim 3, it is characterised in that be additionally provided with the end cap and be crimped on the limitation spring Plate-like block on body, the card of accommodating first limited post and second limited post is provided with the plate-like block Groove, the plate-like block are rotatably arranged in the end cap.

5. coiler according to claim 4, it is characterised in that set in the end cap and house the heavy of the plate-like block Groove, the edge of the deep gouge, which is provided with, to be overlapped in the edge of the plate-like block and carries out spacing limit card block to it, and along institute State the groove that the radial direction of deep gouge opens up.

6. coiler according to claim 2, it is characterised in that also include spacing to the car sense component progress on support Car sense limits device, the car sense limits device include being set up in the core sleeve of the mandrel component and extending out to the disk The linking arm of outer rim, and it is arranged at the limit that the linking arm swinging end compressed or separated cooperation with the car sense arm of the car sense component Arm spring；

It is provided with the end cap and spacing first is carried out to the linking arm when the linking arm and the car sense arm compress Stopping means, and the second spacing stopping means is carried out to the linking arm when the linking arm separates with the car sense arm.

7. coiler according to claim 6, it is characterised in that the linking arm is arranged at the outer face of the end cap On, the limit arm spring swing hole for being communicated to the car sense arm, first stopping means and described second are offered on the end cap Stopping means is the limiting plate being arranged on the end face outer face.

8. coiler according to claim 7, it is characterised in that the linking arm includes being connected in the core sleeve Terminal pad, it is set in the terminal pad outer ring and the connecting rod affixed with the limit arm spring；The connection end of the connecting rod includes Embrace the first connecting portion and second connecting portion located at the terminal pad radially opposite sides, the first connecting portion and second connection The circular arc lock spring that the clamping direction to the two is locked is additionally provided between portion.

9. coiler according to claim 6, it is characterised in that the limit arm spring is to be arranged at the disk and the car Feel the circular arc reed between arm, the outside of the reed and the end of the car sense arm offset.

10. coiler according to claim 7, it is characterised in that the limiting plate is circumferential around linking arm is arranged at Ring-type limiting plate, be additionally provided with the cover plate for being covered on the linking arm on the annular limiting plate.