CN102386542A - Clock spring - Google Patents

Clock spring Download PDF

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Publication number
CN102386542A
CN102386542A CN2010102671252A CN201010267125A CN102386542A CN 102386542 A CN102386542 A CN 102386542A CN 2010102671252 A CN2010102671252 A CN 2010102671252A CN 201010267125 A CN201010267125 A CN 201010267125A CN 102386542 A CN102386542 A CN 102386542A
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China
Prior art keywords
breach
projection
clock spring
meta
rotating disk
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CN2010102671252A
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Chinese (zh)
Inventor
林伯贤
袁明
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BYD Co Ltd
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BYD Co Ltd
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Priority to CN2010102671252A priority Critical patent/CN102386542A/en
Publication of CN102386542A publication Critical patent/CN102386542A/en
Pending legal-status Critical Current

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Abstract

The invention provides a clock spring comprising an installation shell, a dial and wires which are arranged between the installation shell and the dial; the installation shell and the dial can be connected rotationally; the dial can rotate to a limit position of the clockwise direction or the limit position of the counterclockwise direction of the wires relative to the installation shell; the clock spring also comprises a runner which is rotationally arranged on the installation shell; the dial is provided with at least one bulge; at least one gap which is adapted to the bulge is arranged on the runner; and the bulge can be clamped into the gap and drives the runner to rotate through the contact with the gap. The middle position of the clock spring is very easily identified; and in addition, the clock spring has a self-protection function, so that the rotation of the clock spring can be stopped before the wires are pulled and damaged.

Description

A kind of clock spring
Technical field
The invention belongs to the electrical fitting field of vehicle, relate in particular to a kind of clock spring.
Background technology
Clock spring is the electric rotary connector that is used for safe automobile air bag, is installed in the below of vehicle steering usually, is used for being electrically connected between the parts in relative rotation at two.It mainly by winding displacement (being flexible flat cable), do in relative rotation mounting shell and rotating disk, and some other parts forms, in the process of steering wheel left-right rotation, electric component operate as normal such as assurance air bag, horn switch.
Clock spring is inner because winding displacement is arranged; And the length of winding displacement is limited; Therefore the rotating range of clock spring is limited; But therefore after clock spring assembles, must it be turned to the centre position of service area, but the centre position of above-mentioned service area is commonly called meta, centering is named in the operation that clock spring is turned to meta usually.Cause clock spring to depart from above-mentioned meta in order to prevent to rotate in the packing of clock spring before entrucking, the transportation; A lock banking stop that is stuck between mounting shell and the rotating disk need be set usually, and this lock banking stop can prevent relatively rotating between mounting shell and the rotating disk.When being installed to clock spring on the car, earlier this lock banking stop is removed, then clock spring is installed on the vehicle.
Because after the entrucking; Lock banking stop has not just had, and therefore when the vehicle maintenance in later stage, arbitrarily rotates if the maintenance personal disassembles the back with clock spring; Clock spring is easy to depart from above-mentioned meta; Be installed on the vehicle if will depart from the clock spring of meta, then the winding displacement of clock spring is easy to damage in the process of steering wheel rotation, causes vehicle trouble.
Summary of the invention
The present invention is for solving the problem that above-mentioned clock spring in the process of vehicle maintenance departs from meta easily, causes winding displacement to damage; A kind of clock spring is provided; This clock spring is easy to its meta of identification; And this clock spring has the self-protection function, is drawn the bad rotation that can stop clock spring before at winding displacement.
Clock spring of the present invention; Comprise: mounting shell, rotating disk and the winding displacement between mounting shell and rotating disk; Mounting shell and rotating disk are rotatably connected, and said rotating disk mounting shell relatively turns to the clockwise extreme position or the anticlockwise extreme position of winding displacement, wherein; Said clock spring also comprises a runner that is installed in rotation on the mounting shell; Said rotating disk is provided with at least one projection, and said runner is provided with at least one and the adaptive breach of said projection, and said projection can snap in the breach and through driving runner with contacting of breach and rotate; Said projection snaps in when said clock spring is arranged in meta and said breach; Before said rotating disk turned to the clockwise or anticlockwise extreme position of winding displacement from the relative mounting shell of said meta, the part butt except that breach of said projection and said runner stoped being rotated further of rotating disk.
Further, said clock spring also comprises connector, and mounting shell and rotating disk are rotatably connected through connector, and connector is fixedly connected with rotating disk, and said projection is arranged on the connector.
Further, said mounting shell is provided with a projecting shaft, and said runner is installed on the projecting shaft and projecting shaft rotation relatively.
Further, the end that projecting shaft is arranged in mounting shell is provided with square department, and mounting shell is provided with the square depressed part suitable with square department, and square department is arranged in square depressed part and rotates to stop the relative mounting shell of projecting shaft.
Further, cooperate for damping between said runner and the projecting shaft.
Further; Said rotating disk is the 2.5-3.5 circle from the number of turns that the relative mounting shell of said meta turns to clockwise extreme position or the anticlockwise extreme position of winding displacement; Said breach is three; Comprise a central indentation and two limit breach that are positioned at the central indentation both sides, said projection is one, and said runner also comprises an intact portion relative with central indentation; Said one intact and three breach are along the circumferential distribution of runner; Said projection can snap in any and rotate through driving runner with contacting of breach in above-mentioned three breach, and said projection snaps in central indentation when said clock spring is arranged in meta, and said projection snaps in two limit breach at said rotating disk from meta clockwise or after rotating counterclockwise a circle; And at said rotating disk clockwise or rotate counterclockwise, stop being rotated further of rotating disk near two circle backs and said intact butts from meta.
Further; Said rotating disk is the 3.5-4.5 circle from the number of turns that the relative mounting shell of said meta turns to clockwise extreme position or the anticlockwise extreme position of winding displacement; Said breach is five, comprises a central indentation and four limit breach that are positioned at the central indentation both sides, and respectively there are two limit breach on the both sides of central indentation; Said projection is one; Said runner also comprises an intact portion, and said one intact and five breach are along the circumferential distribution of runner, and intact relative with central indentation; Said projection can snap in any and rotate through driving runner with contacting of breach in above-mentioned five breach; Said projection snaps in when said clock spring is arranged in meta and said central indentation, and said projection snaps in two breach adjacent with central indentation at said clock spring from meta clockwise or after rotating counterclockwise a circle, said projection said clock spring from meta clockwise or snap in after rotating counterclockwise two circles with intact two adjacent breach one; Said projection stops being rotated further of rotating disk at said clock spring from meta clockwise or rotate counterclockwise near three circle backs and said intact butts.
Further; Said rotating disk is the 1.5-2.5 circle from the number of turns that the relative mounting shell of said meta turns to clockwise extreme position or the anticlockwise extreme position of winding displacement; Said breach is five, comprises a central indentation and four limit breach that are positioned at the central indentation both sides, and respectively there are two limit breach on the both sides of central indentation; Said projection is two; Be respectively first projection and second projection, two projections are positioned on same the straight line that passes disk axes, and said runner also comprises an intact portion; Said one intact and five breach are along the circumferential distribution of runner; Intact relative with central indentation, and said projection can snap in the above-mentioned breach and through driving runner with contacting of breach and rotate, and said first projection snaps in central indentation when said clock spring is arranged in meta; Said second projection snaps in two limit breach adjacent with central indentation at said clock spring from meta clockwise or after rotating counterclockwise 0.5 circle; Said first projection said clock spring from meta clockwise or snap in after rotating counterclockwise a circle with intact two adjacent limit breach one, said second projection can not be rotated further rotating disk at said clock spring from meta clockwise or rotate counterclockwise near 1.5 circle backs and said intact butts.
The invention has the beneficial effects as follows: when clock spring was positioned at meta, said projection snapped in the said breach, and this point can be accomplished when the assembling clock spring.After clock spring assembles, can whether judge clock spring at meta through the position relation of said projection and breach, the maintenance personal can adjust to meta with clock spring in view of the above, and then installs on the car.If the maintenance personal still installs to clock spring on the car without centering, in the steering wheel rotating process, mounting shell and rotating disk relatively rotate; Projection drives runner and rotates, and projection is deviate from from said breach after rotating certain distance, and runner stops operating; Rotating disk turns to from the relative mounting shell of meta before the clockwise or anticlockwise extreme position of winding displacement, the part butt except that breach of said projection and said runner, and runner has stoped being rotated further of projection and rotating disk; Promptly this clock spring can not be rotated further; And this moment, clock spring does not also arrive the extreme position that its clockwise rotates or rotates counterclockwise, so winding displacement can not drawn bad.
Description of drawings
Fig. 1 a is the sketch map of the clock spring of embodiments of the invention 1 when being positioned at meta;
Fig. 1 b is the sketch map when projection is about to break away from central indentation in the embodiments of the invention 1;
Fig. 1 c is the sketch map when projection is about to snap in the limit breach in the embodiments of the invention 1;
Fig. 1 d is that projection is stuck in the sketch map in the breach of limit in the embodiments of the invention 1;
Fig. 1 e be in the embodiments of the invention 1 projections at intact the sketch map of locating;
Fig. 2 is the sketch map of the clock spring of embodiments of the invention 2 when being positioned at meta;
Fig. 3 is the sketch map of the clock spring of embodiments of the invention 3 when being positioned at meta;
Fig. 4 is the broken section enlarged diagram of A-A direction among Fig. 1 a;
Fig. 5 is the sketch map of the clock spring of embodiments of the invention 1;
Fig. 6 is that the position of runner and projection concerns sketch map in the embodiments of the invention 4.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the present invention is solved, below in conjunction with accompanying drawing and execution mode, the present invention is further elaborated.Should be appreciated that embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Existing clock spring generally includes: mounting shell 1, rotating disk 2, connector 3 and winding displacement, connector 3 and rotating disk 2 are connected through snap fit, and the two rotates synchronously, and mounting shell 1 is rotatably connected through connector 3 with rotating disk 2.In the clock spring that has, connector 3 is made of one with rotating disk 2, and the two is a part.But, in order to install and remove conveniently, usually connector 3 and rotating disk 2 are made two parts.Winding displacement is wrapped in the zone between mounting shell 1 and the rotating disk 2, and an end of winding displacement is fixed on the sidewall of mounting shell 1, and the other end of winding displacement is fixed on the sidewall of rotating disk 2, and in relative rotation in the process, the winding of winding displacement becomes tight or fluffs at mounting shell 1 and rotating disk 2.
Because the length of winding displacement is certain, therefore no matter rotating disk 2 relative mounting shells 1 are to which direction rotation, just can not be rotated further after turning to certain position, if be rotated further by force, then possibly cause breaking, fracture or other damage of winding displacement.The position that can not be rotated further of above-mentioned both direction is called the clockwise extreme position and the anticlockwise extreme position of clock spring (or winding displacement); The dimensional parameters decision that forward the rotation number of total coils of another one by mounting shell 1, rotating disk 2, winding displacement and some other parts of rotating disk 2 from above-mentioned two extreme positions; Concrete account form is a prior art, does not give unnecessary details here.The position that the meta of clock spring promptly is a rotating disk 2 when an extreme position rotates above-mentioned number of total coils only about half of, promptly rotating disk 2 is about equally from the rotation number of turns that meta turns to clockwise extreme position and anticlockwise extreme position.
Clock spring is incompatible fixed according to concrete applied field from the number of turns that meta turns to two extreme positions; The clock spring that has from the rotation number of turns of meta to two extreme position between the 1.5-2.5 circle; The clock spring that has from the rotation number of turns of meta to two extreme position between the 2.5-3.5 circle, the clock spring that also has from the rotation number of turns of meta to two extreme position between the 3.5-4.5 circle.
The clock spring that uses on the now general car, the number of turns that turns to two extreme positions from meta between the 2.5-3.5 circle,
Canoe by winding displacement is distinguished, and that existing clock spring has is spiral, three kinds of planet gear type or cross fancy.The winding displacement canoe of every kind of clock spring is different, but above-mentioned two extreme positions and meta exist.
The clock spring of embodiment of the present invention; Be on the basis of above-mentioned existing clock spring, to have increased part-structure; Make in the process of vehicle maintenance; The maintenance personal better confirms the meta of clock spring, and before clock spring arrives its extreme position, can stop the rotation of clock spring, has protected the winding displacement of clock spring.
Specifically, the clock spring of this execution mode also comprises a runner 4 that is installed in rotation on the mounting shell 1.Said connector 3 is provided with at least one projection; Said runner 4 is provided with at least one and the adaptive breach of said projection; Said projection can snap in the breach and through driving runner 4 with contacting of breach and rotate; Said projection snaps in when said clock spring is arranged in meta and said breach; Before relative mounting shell 1 turned to the clockwise or anticlockwise extreme position of winding displacement from said meta, the part butt except that breach of said projection and said runner 4 can not be rotated further rotating disk 2 at said rotating disk 2.
Before relative mounting shell 1 turns to the clockwise or anticlockwise extreme position of winding displacement from said meta at rotating disk 2; Being rotated further of the part butt except that breach of said projection and said runner 4 and then prevention rotating disk 2; Therefore rotating disk 2 can not turn to above-mentioned two extreme positions, has protected winding displacement.
Through three embodiment the present invention is further specified below.
Embodiment 1
What present embodiment was directed against is the clock spring of the rotation number of turns between the 2.5-3.5 circle from meta to two extreme position.
Runner 4 is following at the concrete mounting means on the mounting shell 1: on mounting shell 1, be provided with the projecting shaft 101 that stretch out an outside to clock spring (promptly to the direction away from rotating disk 2 or winding displacement); The end that projecting shaft 101 is arranged in mounting shell 1 is provided with cross-sectional area than the big square department 101a of projecting shaft 101 other local cross-sectional areas; Mounting shell 1 is provided with the square depressed part 104 suitable with square department 101a; Square department 101a is arranged in square depressed part 104, prevents that with this projecting shaft 101 relative mounting shells 1 from rotating.Runner 4 is positioned at mounting shell 1 outside, and runner 4 is installed on the projecting shaft 101, is tight fit between the two; Said friction tight purpose is that runner 4 can arbitrarily not rotated; But projecting shaft 101 rotations relatively under certain external force effect promptly have certain damping in runner 4 rotating process, and this damping stops the random rotation of runner 4; In the present embodiment, this cooperation between runner 4 and the projecting shaft 101 is also referred to as damping cooperates.Like this, runner 4 can arbitrarily not rotate owing to jolting of vehicle.Quality of fit between runner 4 and the projecting shaft 101 can and combine other method to confirm through test.Preferably, also can between runner 4 and projecting shaft 101, smear the higher lubricating grease of some viscosity.A reference column 7 is fixedly mounted on the projecting shaft 101, and the effect of reference column 7 is to prevent that runner 4 from coming off from projecting shaft 101.A spacer 6 is set on the projecting shaft 101, and spacer 6 is between runner 4 and reference column 7.
Shown in Fig. 1 a-Fig. 1 e; Breach on the runner 4 is three; Comprise a central indentation 401 and two limit breach 402 that are positioned at central indentation 401 both sides; Said projection is one, and promptly projection 301, and said runner 4 also comprises one relative with central indentation 401 intact 403; Said one intact 403 and three breach are along the circumferential arrangement of runner 4; Said projection 301 can snap in any and rotate through driving runner 4 with contacting of breach in above-mentioned three breach, and said projection 301 snaps in central indentation 401 when said clock spring is arranged in meta, and said projection 301 snaps in two limit breach 402 at said connector 3 from meta clockwise or after rotating counterclockwise a circle; And at said connector 3 clockwise or rotate counterclockwise two circle backs and said intact 403 butts nearly, rotating disk 2 can not be rotated further from meta.
When the clock spring was positioned at meta, projection 301 was stuck in the central indentation 401, and this point can be accomplished through assembling, can earlier clock spring be turned to meta during assembling, and then assembling runner 4, and projection 301 is stuck in the central indentation 401.Rotate counterclockwise from the relative mounting shell 1 of the meta shown in Fig. 1 a with rotating disk 2 below and describe.After connector 3 and rotating disk 2 rotate counterclockwise certain angle from the relative mounting shell 1 of the meta shown in Fig. 1 a, projection 301 will soon be deviate from from middle breach 401, and the state of this moment is shown in Fig. 1 b; After projection 301 was deviate from from middle breach 401, runner 4 stopped operating, and connector 3 is rotated further; Nearly rotate counterclockwise a circle (circle than complete is a little less a little) when reaching the position shown in Fig. 1 c at connector 3 from meta, projection 301 contacts and drives runner 4 rotations with a limit breach 402, and projection 301 snaps in the limit breach 402 then; Concrete state is shown in Fig. 1 d, and this moment, connector 3 rotated counterclockwise a circle from meta, and connector 3 is rotated further and from said limit breach 402, deviates from; Runner 4 stops operating; This moment runner 4 state shown in Fig. 1 e, connector 3 is rotated further, when connector 3 turns to when contacting again with runner 4; The contact condition of the two is shown in Fig. 1 e; This moment, projection 301 contacted with intact 403, and being projection 301 specifically contacts with intact 403 protrusion arc face 403a, owing to intact 403 place do not have to hold the similar central indentation 401 of projection 301 or the breach of limit breach 402; Therefore connector 3 can not be rotated further with rotating disk 2, and this moment, connector 3 rotated counterclockwise two circles (two circles than complete are a little less a little) nearly with rotating disk 2 from meta.Because rotating disk 2 rotates counterclockwise the rotation number of turns of anticlockwise extreme position between the 2.5-3.5 circle from meta; Be that rotating disk 2 does not also turn to anticlockwise extreme position; Therefore the winding displacement in this clock spring can not broken or fractureed; Do not have other damage yet, protected winding displacement.When connector 3 and rotating disk 2 when the relative mounting shell 1 of the meta shown in Fig. 1 a clockwise rotates; Detailed process with rotate counterclockwise much at one, rotating disk 2 nearly clockwise rotated two circles from meta after, projection 301 contacted with intact 403; Rotating disk 2 can not be rotated further, and has protected winding displacement.
Embodiment 2
What present embodiment was directed against is the clock spring of the rotation number of turns between the 3.5-4.5 circle from meta to two extreme position.In the present embodiment, for repeat no more main the description and embodiment 1 different portions with embodiment 1 identical part.Concrete scheme is following:
As shown in Figure 2; Said breach is five; Comprise a central indentation 401 and four limit breach 402 that are positioned at central indentation 401 both sides, respectively there are two limit breach 402 on the both sides of central indentation 401, and said projection is one; It is projection 301; Said runner 4 also comprises one intact 403, and said one intact 403 and five breach circumferentially evenly distribute along runner 4, and intact 403 relative with central indentation 401; Said projection 301 can snap in any and rotate through driving runner 4 with contacting of breach in above-mentioned five breach; Said projection 301 snaps in when said clock spring is arranged in meta and said central indentation 401, said projection 301 at said rotating disk 2 clockwise or snap in two breach adjacent after rotating counterclockwise a circle with central indentation 401 from meta, said projection 301 said rotating disk 2 from meta clockwise or snap in after rotating counterclockwise two circles with intact 403 two adjacent breach one; Said projection 301 can not be rotated further rotating disk 2 at said rotating disk 2 from meta clockwise or rotate counterclockwise three circle backs and said intact 403 butts nearly.
Connector 3 is basic identical with the movement relation such as the embodiment 1 of runner 4 in the present embodiment; But because the breach on the runner 4 is 5 in the present embodiment, therefore no matter be connector 3 clockwise or rotate counterclockwise, the number of turns that connector 3 rotates is all than embodiment more than 1 one circles; It is connector 3 and rotating disk 2 clockwise or after nearly rotating counterclockwise 3 circles; Projection 301 just can contact with intact 403, and connector 3 stops operating with rotating disk 2, has protected winding displacement.Like this, both make full use of the rotatable number of turns of connector 3 and rotating disk 2, protected winding displacement again.
Embodiment 3
What present embodiment was directed against is the clock spring of the rotation number of turns between the 1.5-2.5 circle from meta to two extreme position.In the present embodiment, for repeat no more main the description and embodiment 1 different portions with embodiment 1 identical part.Concrete scheme is following:
As shown in Figure 3; Said breach is five; Comprise a central indentation 401 and four limit breach 402 that are positioned at central indentation 401 both sides; Respectively there are two limit breach 402 on the both sides of central indentation 401, and said projection is two, are respectively the first projection 301a and the second projection 301b; Two projections are positioned on same the straight line that passes connector 3 axle center; Said runner 4 also comprises one intact 403, and said one intact 403 and five breach circumferentially evenly distribute along runner 4, and intact 403 relative with central indentation 401; Said projection can snap in the above-mentioned breach and through driving runner 4 with contacting of breach and rotate; The said first projection 301a snaps in central indentation 401 when said clock spring is arranged in meta, the said second projection 301b at said connector 3 and rotating disk 2 clockwise or snap in two limit breach 402 adjacent after rotating counterclockwise 0.5 circle with central indentation 401 from meta, the said first projection 301a said connector 3 and rotating disk 2 from meta clockwise or snap in after rotating counterclockwise a circle with intact 403 two adjacent limit breach 402 one; The said second projection 301b can not be rotated further rotating disk 2 at said connector 3 and rotating disk 2 from meta clockwise or rotate counterclockwise 1.5 circle backs and said intact 403 butts nearly.
Rotating counterclockwise with the clock spring of present embodiment below is the course of work that example is explained this clock spring.The first projection 301a snaps in central indentation 401 when the clock spring is arranged in meta; When connector 3 after relative mounting shell 1 rotates counterclockwise half-turn from meta with rotating disk 2, the second projection 301b snaps in the breach adjacent with central indentation 401; Connector 3 is rotated further, when connector 3 rotates a circle from meta after, the first projection 301a snap in intact 403 adjacent breach in; Connector 3 is rotated further, when connector 3 when meta nearly rotates 1.5 circles (1.5 circles than complete are a little less a little), the second projection 301b and intact 403 butt, connector 3 can not be rotated further.Because rotating greater than 1.5 circles from meta, rotating disk 2 just possibly arrive anticlockwise extreme position; Therefore when the second projection 301b and intact 403 butt; Rotating disk 2 also is less than anticlockwise extreme position; Therefore winding displacement can not broken or fractureed, and does not have other damage yet, has protected winding displacement.
Embodiment 4
What present embodiment was directed against is the clock spring of the rotation number of turns between the 2.5-3.5 circle from meta to two extreme position.In the present embodiment, for repeat no more main the description and embodiment 1 different portions with embodiment 1 identical part.Concrete scheme is following:
As shown in Figure 6; There is not protrusion arc face 403a on intact 403 of runner 4; But three interconnective plane 403b, 403c and 403d are arranged; Three plane 403b, 403c and 403d constitute a kind of structure of similar arch, and projection 301 contacts with plane 403d, and connector 3 and rotating disk 2 are stopped operating.
Relation object among each embodiment of this execution mode between projection and the breach is like the relation between the gear of two mutual transmissions; The shape of projection and breach can design with reference to the shape of gear; Also can adopt other feasible shape; As long as guarantee when projection spins off from a breach, runner 4 turns to next breach and is positioned at the position that can be driven by projection, and projection can snap in the said next breach and gets final product.Concrete design details is not given unnecessary details.
Among each embodiment of this execution mode, when the clock spring was positioned at meta, projection was stuck in the central indentation 401, and this point can be accomplished through assembling.After clock spring assembles, can whether whether in central indentation 401, judge clock spring at meta through judging said projection, promptly this clock spring is easy to the identification meta.In the vehicle maintenance process, the maintenance personal can adjust to meta with clock spring earlier, and then installs on the car, reduces the wrong possibility of dress.
Among each embodiment of this execution mode, before relative mounting shell 1 turned to the clockwise or anticlockwise extreme position of winding displacement from said meta, rotating disk 2 will stop operating, and has protected winding displacement at rotating disk 2, and this promptly is the self-protection function of this clock spring.When vehicle maintenance; If the maintenance personal installs to this clock spring on the car without centering; Steering wheel is after certain direction turns to certain position littler than normal rotation angle, because the self-protection function of this clock spring, steering wheel can not be rotated further; Human pilot hence one can see that the somewhere relevant with steering wheel existing problems can let the maintenance personal check and adjust clock spring once more.
The above is merely preferred embodiments of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (8)

1. clock spring; Comprise: mounting shell, rotating disk and the winding displacement between mounting shell and rotating disk; Mounting shell and rotating disk are rotatably connected, and said rotating disk mounting shell relatively turns to the clockwise extreme position or the anticlockwise extreme position of winding displacement, it is characterized in that; Said clock spring also comprises a runner that is installed in rotation on the mounting shell; Said rotating disk is provided with at least one projection, and said runner is provided with at least one and the adaptive breach of said projection, and said projection can snap in the breach and through driving runner with contacting of breach and rotate; Said projection snaps in when said clock spring is arranged in meta and said breach; Before said rotating disk turned to the clockwise or anticlockwise extreme position of winding displacement from the relative mounting shell of said meta, the part butt except that breach of said projection and said runner stoped being rotated further of rotating disk.
2. clock spring as claimed in claim 1 is characterized in that said clock spring also comprises connector, and mounting shell and rotating disk are rotatably connected through connector, and connector is fixedly connected with rotating disk, and said projection is arranged on the connector.
3. clock spring as claimed in claim 2 is characterized in that, said mounting shell is provided with a projecting shaft, and said runner is installed on the projecting shaft and projecting shaft rotation relatively.
4. clock spring as claimed in claim 3; It is characterized in that; The end that projecting shaft is arranged in mounting shell is provided with square department, and mounting shell is provided with the square depressed part suitable with square department, and square department is arranged in square depressed part and rotates to stop the relative mounting shell of projecting shaft.
5. clock spring as claimed in claim 3 is characterized in that, cooperates for damping between said runner and the projecting shaft.
6. clock spring as claimed in claim 1; It is characterized in that; Said rotating disk is the 2.5-3.5 circle from the number of turns that the relative mounting shell of said meta turns to clockwise extreme position or the anticlockwise extreme position of winding displacement, and said breach is three, comprises a central indentation and two limit breach that are positioned at the central indentation both sides; Said projection is one; Said runner also comprises an intact portion relative with central indentation, and said one intact and three breach be along the circumferential distribution of runner, and said projection can snap in any and rotate through driving runner with contacting of breach in above-mentioned three breach; Said projection snaps in central indentation when said clock spring is arranged in meta; Said projection snaps in two limit breach at said rotating disk from meta clockwise or after rotating counterclockwise a circle, and at said rotating disk from meta clockwise or rotate counterclockwise near two circle backs and said intact butts, stops being rotated further of rotating disk.
7. clock spring as claimed in claim 1; It is characterized in that; Said rotating disk is the 3.5-4.5 circle from the number of turns that the relative mounting shell of said meta turns to clockwise extreme position or the anticlockwise extreme position of winding displacement; Said breach is five, comprises a central indentation and four limit breach that are positioned at the central indentation both sides, and respectively there are two limit breach on the both sides of central indentation; Said projection is one; Said runner also comprises an intact portion, and said one intact and five breach are along the circumferential distribution of runner, and intact relative with central indentation; Said projection can snap in any and rotate through driving runner with contacting of breach in above-mentioned five breach; Said projection snaps in when said clock spring is arranged in meta and said central indentation, and said projection snaps in two breach adjacent with central indentation at said clock spring from meta clockwise or after rotating counterclockwise a circle, said projection said clock spring from meta clockwise or snap in after rotating counterclockwise two circles with intact two adjacent breach one; Said projection stops being rotated further of rotating disk at said clock spring from meta clockwise or rotate counterclockwise near three circle backs and said intact butts.
8. clock spring as claimed in claim 1; It is characterized in that said rotating disk is the 1.5-2.5 circle from the number of turns that the relative mounting shell of said meta turns to clockwise extreme position or the anticlockwise extreme position of winding displacement, said breach is five; Comprise a central indentation and four limit breach that are positioned at the central indentation both sides; Respectively there are two limit breach on the both sides of central indentation, and said projection is two, are respectively first projection and second projection; Two projections are positioned on same the straight line that passes disk axes; Said runner also comprises an intact portion, and said one intact and five breach are along the circumferential distribution of runner, and intact relative with central indentation; Said projection can snap in the above-mentioned breach and through driving runner with contacting of breach and rotate; Said first projection snaps in central indentation when said clock spring is arranged in meta, said second projection snaps in two limit breach adjacent with central indentation at said clock spring from meta clockwise or after rotating counterclockwise 0.5 circle, said first projection said clock spring from meta clockwise or snap in after rotating counterclockwise a circle with intact two adjacent limit breach one; Said second projection can not be rotated further rotating disk at said clock spring from meta clockwise or rotate counterclockwise near 1.5 circle backs and said intact butts.
CN2010102671252A 2010-08-25 2010-08-25 Clock spring Pending CN102386542A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102849005A (en) * 2012-08-18 2013-01-02 山西荣长汽车部件有限公司 Limiting clock spring with easily-discriminated center
CN103034281A (en) * 2012-11-16 2013-04-10 青岛歌尔声学科技有限公司 Rotating wheel damping structure and device and implementation method of rotating wheel damping structure
CN103368029A (en) * 2012-03-27 2013-10-23 比亚迪股份有限公司 Clock spring, steering gear assembly and automobile thereof
CN104953427A (en) * 2014-03-31 2015-09-30 比亚迪股份有限公司 Clock spring and vehicle with clock spring
CN107994430A (en) * 2017-11-16 2018-05-04 中国第汽车股份有限公司 A kind of automobile using clock spring

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WO1995002263A1 (en) * 1993-07-06 1995-01-19 Valeo Electronique Rotary switch, particularly for motor vehicles
CN1133977A (en) * 1994-10-17 1996-10-23 迈索德电子公司 Clockspring with centering display device
EP0867343A1 (en) * 1997-03-26 1998-09-30 Valeo Electronique Rotative contact support with hidden fastening screw
EP0976619A1 (en) * 1998-07-31 2000-02-02 Sc2N Vehicle steering column set equipped with a steering wheel revolutions counting device

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CN103368029A (en) * 2012-03-27 2013-10-23 比亚迪股份有限公司 Clock spring, steering gear assembly and automobile thereof
CN103368029B (en) * 2012-03-27 2015-09-30 比亚迪股份有限公司 A kind of clock spring, steering assembly and automobile thereof
CN102849005A (en) * 2012-08-18 2013-01-02 山西荣长汽车部件有限公司 Limiting clock spring with easily-discriminated center
CN102849005B (en) * 2012-08-18 2015-12-30 山西中航锦恒科技有限公司 Easily distinguish the spacing clock spring of meta
CN103034281A (en) * 2012-11-16 2013-04-10 青岛歌尔声学科技有限公司 Rotating wheel damping structure and device and implementation method of rotating wheel damping structure
CN103034281B (en) * 2012-11-16 2014-11-05 青岛歌尔声学科技有限公司 Rotating wheel damping structure and device and implementation method of rotating wheel damping structure
CN104953427A (en) * 2014-03-31 2015-09-30 比亚迪股份有限公司 Clock spring and vehicle with clock spring
CN107994430A (en) * 2017-11-16 2018-05-04 中国第汽车股份有限公司 A kind of automobile using clock spring
CN107994430B (en) * 2017-11-16 2024-05-07 中国第一汽车股份有限公司 Clock spring for automobile

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Application publication date: 20120321