CN2898414Y - Cable tensioner, window adjuster and openable structural component - Google Patents
Cable tensioner, window adjuster and openable structural component Download PDFInfo
- Publication number
- CN2898414Y CN2898414Y CN 200520118844 CN200520118844U CN2898414Y CN 2898414 Y CN2898414 Y CN 2898414Y CN 200520118844 CN200520118844 CN 200520118844 CN 200520118844 U CN200520118844 U CN 200520118844U CN 2898414 Y CN2898414 Y CN 2898414Y
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- cable
- spring
- screw
- tightener
- nut
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Abstract
The utility model supplies a cable rope tensiar, a window regulator and an opening frame member. The cable rope tensiar can be used for automobile window regulator comprises a screw and nut assembly (11-12), the assembly comprises a self locked thread lead angle, a first spring (15) and a second spring (16), the design of a first spring is: when cable rope (8) is slack, a first spring will actuate the screw and nut assembly; the design of a second spring is: when cable rope (8) is with excessive pulling force, a second spring will stop the screw and nut assembly. The tensiar can guarantee the compensation for extended cable rope is nonreversible.
Description
Technical field
The utility model relates to a kind of tightener of cable, especially for the tightener of cable of window regulator apparatus.
Background technique
Window regulator is a kind of device that is used to be equipped with the motor vehicle of window, and its driving force is delivered to window.Window regulator comprises a driving component, for example cable or band, and driving component is connected to drive unit, for example crank or motor, drive unit produces the motion of window.Cable can be driven by slider, and slider moves at the effect lower edge of cable guide rail.Cable can be divided into bottom cable and top cable, and they are wrapped on the drum with opposite direction, and this drum is driven by motor or crank.
In whole life time, the tensioning of cable must be well controlled in the window regulator.Exist lax can bringing that relevant window motion inaccuracy is set in the cable ring with drive system.
The accuracy that window regulator is handled is important, particularly, is crucial especially in the situation of the window regulator of frameless door.In some model of frameless door window regulator, in order to break away from the top strip of paper used for sealing, when opening, window by the family a little put down.Therefore, in order not hinder opening of door, the motion of window must accurately be finished.For the requirement of satisfy regulating, particularly consider the requirement of anti-pinch, it is big that this motion also can not ether.Thereby the driving cable of window must have enough pulling force to guarantee accurately moving of window.
Yet, gradually aging of the member experience of forming window regulator apparatus, thus owing to causing cable, the wearing and tearing that for example drive drum and pulley obviously extend, owing to compress or the pulley metal creep causes the shortening of cable sleeve.This must be compensated by the cable elongation that the different part aging of window regulator cause.
Known play compensation device, this device have considered that the elongation that absorbs cable reaches to guarantee enough pulling force the window regulator apparatus manipulation of being satisfied with.
The great majority of these mechanical devices are that the mode with classification turns round based on the operation system of either large or small size break, and are for example disclosed in German patent application DE 197 06 866A.
In order to guarantee more uniform pulling force, preferably, select a continuous bucking-out system to avoid threshold effect.Disclose so a kind of mechanical device in patent application EP 0 244 303, this device comprises the screw and the nut of a tension device, and a push rod and flexible member act on the tension device.Along a direction, screw can, under the effect of flexible member end thrust, the power that applies whenever push rod disappears or when reducing, realizes a spiral motion in nut; Along another direction, screw can not be realized rotation or translation in nut.This mechanical device is based on the self-locking system of friction.Thereby in the time may play occurring between two parts that are connected to the tension device screw, this play is automatically compensated by the unidirectional movement of screw.
Yet such mechanical device is not complete self-locking.For example, lubricant oil or other can reduce the material of friction factor arbitrarily, introduced between the screw and nut of tension device by cable or drum from for example window regulator, so, screw may be along going up translation in the opposite direction with Motion Compensation side in nut.Therefore, excessive pulling force in the cable is for example because the excessive moment of torsion when window is in a high position or low level may cause the reverse translation of tension device screw and the elongation that causes undesirable cable.
Therefore, there is a requirement in the window regulator apparatus tightener of cable, requires promptly to guarantee that the compensation to cable tensioning play is definitely irreversible.
The model utility content
The purpose of this utility model provides and a kind ofly guarantees that the compensation to cable tensioning play is complete irreversible tightener of cable.
Tightener of cable provided by the utility model comprises:
One screw and nut component, this assembly comprises the thread lead angle of a self-locking;
First spring, described first spring is designed to: when existence is lax in the cable, first spring-actuated described screw and the nut component,
Second spring, design described second spring and be designed to: when having excessive pulling force in the cable, second spring blocks described screw and nut component.
According to a feature, between first tensioned or the backstop that is pressed on hold-doun nut and overlaps with the cable sheath.
According to a feature, second spring is the torsion spring that is placed in the hold-doun nut.
According to a feature, second spring holder is around screw, thereby the diameter of described second spring reduces when lax when having in the cable, and its diameter increase when excessive pulling force is arranged in the cable.
According to an embodiment, an end of second spring is fixed to screw.
According to another embodiment, second spring comprises the end of a bending, and this end forms a finger piece that inserts in the screw longitudinal fluting.
According to a feature, second spring has an inner diameter, makes when not stressing state the inwall of the second spring binding nut.
Therefore, the utility model relates to a kind of window regulator, and this window regulator comprises a tensioned cables, is used to activate tightener of cable of the present utility model and window.
But the utility model also provides a kind of opening members, and for example the window of motor vehicle be equipped with cable driving mechanism but be somebody's turn to do opening members, and this cable driving mechanism comprises a tightener of cable of the present utility model.
Thereby the tension device of model utility has that dual mechanism compensates the elongation of cable and the cable elongation is tightened in prevention.By second obstruction spring and the counterbalance spring, can guarantee that the compensation to the cable elongation is irreversible fully.
Description of drawings
With reference to accompanying drawing, when reading hereinafter the detailed description about the utility model embodiment, other characteristic and advantage of the utility model will become obvious; This is described just as an example, in described accompanying drawing:
Fig. 1 is the utility model first embodiment's a tightener of cable;
Fig. 2 is the utility model second embodiment's a tightener of cable;
Fig. 3 is the sectional view of second spring of the utility model second embodiment's tightener of cable.
Embodiment
Tightener of cable of the present utility model can be arranged on the cable circuit of window regulator apparatus.When cable became lax, for example because the aging mechanical wear that causes, tightener of cable must the cable circuit is elongated to absorb this elongation by making.Yet this elongation must be irreversible fully, that is to say, cable necessarily can not extend under the effect of big pulling force, for example when window in its high position or during low level.
Therefore, tension device of the present utility model has that dual mechanism compensates the elongation of cable and the cable elongation is tightened in prevention.Tension device comprises: a screw and nut component, and this assembly comprises the thread lead angle of a self-locking; First spring that is used for actuating screw and nut component when cable is lax; And second spring of jam bolt and nut component when being used in cable, existing excessive pulling force.Therefore, by second obstruction spring and the counterbalance spring, can guarantee that the compensation to the cable elongation is irreversible fully.
With reference to Fig. 1 and 2 description detailed in addition to the utility model.
Tightener of cable is centered on the axis 10 of window regulator apparatus control cable circuit.Preferably, tightener of cable places on the bottom cable of window regulator apparatus, and described bottom cable then is " slack-side " of window regulator apparatus when window is in upper position.
Tension device comprises a screw and nut component, and nut part 11 is fixed, and thread part 12 can be movable in nut 11.Nut part 11 not only means the internal thread that is used to hold screw 12, and is a supporting element of making screw thread; This supporting element can be the shape and size that are suitable for required application arbitrarily.
Screw and nut component 11-12 comprise the thread lead angle of a self-locking.For example screw 12 and nut 11 have complementary helix angle, therefore, on the one hand, under the responsive to axial force of a flexible member, screw 12 can be realized spiral motion along a direction in nut 11, on the other hand, generally screw 12 can not be realized translation or rotation in opposite direction in nut 11.
Tension device of the present utility model also comprises first spring 15 and second spring 16.First spring 15 is pressure springs and second spring 16 is torsion springs.
Therefore, torsion spring 16 has replenished the function at the self-locking thread angle of screw and nut component 11-12.Because torsion spring 16 places in the nut part 11, when its increasing diameter added-time, thereby the inwall of the coil of spring ring friction nut 11 stops screw to advance on undesirable direction.On the contrary, when the diameter of torsion spring 16 reduced, screw 12 can not have frictionally and advances at nut 11.In order to realize this braking function, no matter screw 12 is positioned at where going up of nut 11, torsion spring 16 all remains adhered on the screw 12.
According to first embodiment shown in Figure 1, the setting of connecting with screw and nut component 11-12 of first spring 15 that is to say and follows screw 12.
According to this first embodiment, second torsion spring 16 is connected with the helical thread portion of screw 12.For example, an end of torsion spring 16 is fixed to the unthreaded portion of screw 12 screw rod bars.
According to second embodiment shown in Figure 2, first spring 15 is in parallel with screw and nut component 11-12, that is to say that it is around screw 12.First spring is a for example helical spring, is compressed between the backstop 14 of the shoulder 13 of nut 11 and cable sheath cover.Screw 12 has a helical thread portion, and this helical thread portion extends to nut 11 from the backstop 14 of cable sheath cover.
According to this second embodiment, second spring 16 is installed on the helical thread portion of screw 12.Torsion spring 16 has the end of a bending, and this end forms a finger piece, and as shown in Figure 3, screw 12 has a groove 19, and finger piece 17 is contained in the groove 19.The cooperation of finger piece 17 in groove 19 forms the removable attachment point of screw 12 on torsion spring, so that no matter screw 12 is positioned at where going up of nut 11, torsion spring 16 can continue attached on the screw 12.
When screw 12 was realized translation with the elongation of compensation cable 8 in nut 11, the diameter of torsion spring 16 reduced, and the finger piece 17 of spring can slide along groove 19 during this translation.When screw 12 was desired to realize reverse translation in nut 11, the diameter of torsion spring 16 increased, and the finger piece 17 of spring stops the rotation of screw 12.Thereby the inwall of the coil of spring 16 friction nut 11 stops the slip of finger piece 17 in groove 19.
Move in the following manner according to tightener of cable of the present utility model.
When window regulator was in low level, cable 8 was tightened, and the size that is applied to the pulling force P on the tension device by cable is between the 500N to 700N, depended on the Maximum Torque of used motor in the window regulator apparatus and decided.The power (being generally 10N to 80N) that this pulling force P applies than spring 15 is much bigger, so spring 15 is by compression.Like this, the latching characteristics of tightener of cable stops any of screw 12 to move.
When window regulator left low level with the rise window, the bottom cable was lax.When its arrives when high-order, be applied on the cable of top corresponding to the maximum pull P of motor Maximum Torque.The stretched spring 15 of bottom cable is can mobile then screw 12 lax with what occur in the compensation cable, for example because the wearing and tearing of some part of window regulator apparatus are caused lax.Select the rigidity of first spring 15, make restoring force f bigger, particularly when window regulator arrives a high position than the pulling force of lax bottom cable.
Simultaneously, second spring 16 is because the rotation of nut 11 internal threads 12 is compressed, and its diameter reduces to make it not hinder screw 12 translation in nut 11.
When, under the effect of first spring, 15 restoring force f, thereby screw 12 moves when absorbing the elongation that is caused by wearing and tearing with elongation cable circuit, and the cable tension force is equal to the restoring force f of spring 15 once more, makes screw 12 motionless.
On the contrary, if it is very big that the pulling force P of cable 8 becomes, reached a degree, the screws 12 in the nut 11 have along with the side of screw thread in the opposite direction during translation dangerous when reversible control window (for example when), torsion spring 16 is stretched owing to screw 12 begins counterrotatings.The diameter of torsion spring 16 will increase, and will stop undesirable motion of screw 12 by friction nut 11 then.
Tightener of cable is particularly suitable for installing on the window regulator cable circuit, but it also goes for other the cable remote control unit that needs the play compensation arbitrarily.
Thereby, but favourable application of the utility model relates to for example window of motor vehicle of opening members, particularly frameless door.
Certainly, the utility model is not limited to the embodiment in the illustration; Therefore, spring 15 and 16 configuration and the direction of actuation of screw 12 in nut 11 can be revised according to the embodiment of tightener of cable.Particularly, spring 15 can be an extension spring that has suitable configurations with respect to screw and nut component, and suitable position is arranged on the control cable linear system.
Claims (10)
1. a tightener of cable is characterized in that, described tightener of cable comprises:
One screw and nut component (11-12), described assembly comprises the thread lead angle of a self-locking;
One first spring (15), it is designed to: this first spring-actuated described screw and nut component when existence is lax in the cable (8);
One second spring (16), it is designed to: this second spring blocks described screw and nut component when having excessive pulling force in the cable (8).
2. tightener of cable as claimed in claim 1 is characterized in that: first spring (15) is stressed between the backstop (14) of hold-doun nut (11) and cable sheath cover.
3. tightener of cable as claimed in claim 1 or 2 is characterized in that: second spring (16) is the torsion spring that places in the hold-doun nut (11).
4. tightener of cable as claimed in claim 1 or 2, it is characterized in that: second spring (16) coiling screw (12), thereby the diameter of second spring reduces when lax when having in the cable (8), and the diameter of second spring increases when in the cable (8) excessive pulling force being arranged.
5. tightener of cable as claimed in claim 1 or 2 is characterized in that: second spring (16) comprises an end that is fixed to screw (12).
6. tightener of cable as claimed in claim 1 or 2 is characterized in that: second spring (16) comprises the end of a bending, and this end forms one and is inserted into the finger piece (17) in the longitudinal fluting (19) in the screw (12).
7. tightener of cable as claimed in claim 1 or 2 is characterized in that: second spring (16) has an inner diameter, makes the inwall of second spring binding nut (11) when not stressing state.
8. a window regulator is characterized in that, described window regulator comprises that a tensioned cables that is used for activating window and one are as each described tightener of cable of claim 1 to 7.
9. but an opening members is characterized in that, but described opening members comprises a cable driving mechanism, and this cable driving mechanism comprises just like each described tightener of cable in the claim 1 to 7.
10. but opening members as claimed in claim 9 is characterized in that, but described opening members is the window of motor vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520118844 CN2898414Y (en) | 2005-09-12 | 2005-09-12 | Cable tensioner, window adjuster and openable structural component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520118844 CN2898414Y (en) | 2005-09-12 | 2005-09-12 | Cable tensioner, window adjuster and openable structural component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2898414Y true CN2898414Y (en) | 2007-05-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520118844 Expired - Fee Related CN2898414Y (en) | 2005-09-12 | 2005-09-12 | Cable tensioner, window adjuster and openable structural component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2898414Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931110A (en) * | 2017-04-28 | 2017-07-07 | 桂林电子科技大学 | A kind of chain tension governor motion |
-
2005
- 2005-09-12 CN CN 200520118844 patent/CN2898414Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931110A (en) * | 2017-04-28 | 2017-07-07 | 桂林电子科技大学 | A kind of chain tension governor motion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070509 Termination date: 20110912 |