EP1913221A1

EP1913221A1 - Force transmission element, window lifter and motor vehicle door with a window lifter

Info

Publication number: EP1913221A1
Application number: EP06792479A
Authority: EP
Inventors: Carsten Dipl.-Ing. HÜGE; Claus Mangold
Original assignee: Faurecia Innenraum Systeme GmbH
Current assignee: Faurecia Innenraum Systeme GmbH
Priority date: 2005-08-04
Filing date: 2006-07-04
Publication date: 2008-04-23
Anticipated expiration: 2026-07-04
Also published as: US20080202031A1; DE502006006463D1; CN101233290A; DE102005037324A1; US7596907B2; ATE461343T1; EP1913221B1; WO2007014822A1; DE102005037324B4; CN101233290B

Abstract

The invention relates to a force-transmission element for a window lifter (200; 300; 500) for transmitting a closing force (242; 342, 356) and an opening force (230; 330, 350) to a window (210; 310; 510), wherein the force-transmission element has a first force application point (216; 316, 316'; 416) for transmitting the closing force and a second force application point (222; 322, 322'; 422) for transmitting the opening force, and wherein the force application points are arranged in a displacement direction of the window and offset perpendicular to this displacement direction.

Description

Power transmission element, window and motor vehicle door with a window

description

The invention relates to a power transmission element for a window and a window and a motor vehicle door with a window. Various windows are known from the prior art, for example from DE 197 23 642 B4, DE 102 30 073 A1, EP 1 129 875 B1, WO 2004/002766 A1, DE 196 19 087 C2, DE 102 52 055A1, WO 2004/065738 A1 and DE 102 55 461 A1.

A common disadvantage of prior art windows is that the maximum so-called glass drop, that is, the maximum stroke of the window between a closed and an open position, is smaller than the distance of the pulleys of the window regulator. This is illustrated by way of example for a window lifter known from the prior art in FIG. 1:

FIG. 1 shows a cable window lifter 100 which is fastened to a carrier plate 102 of a motor vehicle door. The support plate 102 is the door inner panel of the vehicle door or a support plate of a door module.

The cable window lifter 100 has a drive motor 104 which is fixed to the support plate 102. The single cable 106 of the cable window lifter 100 is guided over two deflection rollers 108 and 110 and is connected to a driver 114 by means of a cable nipple 112 pinched with the cable 106. The driver 114 is on the one hand slidably engaged with a guide rail 116 extending along the adjustment direction of the window pane, not shown in FIG. 1, and on the other hand carries the window pane. By a rotation of the cable drum of the drive motor 104 to the right or to the left of the driver 114 is moved along the guide rail 116 upwards or downwards, causing the window open and close.

In the figure 1, the driver 114 is shown in dashed lines in the position A, that is in the closed position of the window as well as in the position B, that is in the maximum open position of the window. The resulting maximum stroke 118 of the window, that is, the so-called glass drop, is inherently considerably smaller than the distance 120 of the pulleys 108 and 110. The invention is based on the object to provide an improved power transmission element for a window, a window and a motor vehicle door with a window.

The objects underlying the invention are each achieved with the features of the independent claims. Preferred embodiments of the invention are indicated in the dependent claims.

The invention provides a power transmission element for a power window is provided, which serves for transmitting a closing force and an opening force on a window, wherein the force transmission element has a first force application point for transmitting the closing force and a second point of force for transmitting the opening force, and wherein the force application points are arranged offset in an adjustment of the window and perpendicular thereto.

Due to the staggered arrangement of the force application points for the opening force and the closing force in vertical and horizontal directions can be created using the power transmission element according to the invention, a window, wherein the maximum stroke of the window is greater than the distance of the pulleys. As a result, a particularly compact design of the window lifter can be realized.

According to one embodiment of the invention, the power transmission element has a fastening means for attachment to the window. The fastening means can be designed to form a positive or non-positive connection with the window.

According to one embodiment of the invention, the force transmission element has a first projection for forming the first point of force application and a second projection for forming the second point of application of force, the projections pointing in different directions, preferably in substantially opposite horizontal directions. In this case, the first projection is arranged above the second projection. According to one embodiment of the invention, the first projection has a first stop surface for forming a first stop in an opening position of the window and the second projection has a second stop surface for forming a second stop in a closed position of the window. Preferably, the stop surfaces are circular arc-shaped to form stops with pulleys of the window.

According to one embodiment of the invention, the force application points each serve to receive a pull rope. By a spring, at least one of the traction cables can be under a bias, which can increase the life of the window lifter with a gradual expansion of the traction cable.

In another aspect, the invention relates to a window with at least one force transmission element according to the invention. The window regulator has a drive for transmitting a first tensile force to the first force application point for opening the window and for transmitting a second tensile force to the second force application point for closing the window.

According to one embodiment of the invention, corresponding first and second traction cables for transmitting the tensile forces are driven by the drive via at least one cable drum.

According to one embodiment of the invention, a first deflection roller serves for deflecting the first tensile force and a second deflection roller for deflecting the second tensile force, wherein the spacing of the deflection rollers in the adjustment direction of the window is smaller than the maximum stroke of the window.

According to one embodiment of the invention, the glass connection of the window lifter takes place via at least two of the force transmission elements according to the invention. The two power transmission elements are mechanically coupled so that when opening and closing the window, a tensile force from one to the other Power transmission element is transmitted. Preferably, this mechanical coupling via another cable, which is guided over a further deflection roller.

This embodiment is particularly suitable for the realization of a so-called trackless window lifter, which does not require additional guide rails.

In a further aspect, the invention relates to a motor vehicle door with a window regulator according to the invention. For example, a door inner panel of the vehicle door has an opening which serves to receive a carrier on which the drive and the deflection rollers of the window lifter are mounted. Since a particularly compact design of the window lifter is possible due to the power transmission elements according to the invention, that is, the arrangement of the pulleys with a relatively small distance, the opening in the door inner panel may accordingly be relatively small. As a result, the rigidity of the motor vehicle door and the crash safety can be increased.

In further preferred embodiments of the invention will be explained in more detail with reference to the drawings. Show it:

FIG. 1 shows a cable window lifter known from the prior art,

FIG. 2 shows a first embodiment of a window regulator according to the invention in a closed position of the window,

FIG. 3 shows the embodiment of the window lifter of FIG. 2 in an opening position of the window;

FIG. 4 shows a second embodiment of a window regulator according to the invention in a closed position of the window,

FIG. 5 the embodiment of the window lifter of FIG. 4 in an opening position of the window, 6 is a perspective view of an embodiment of a power transmission element according to the invention for glass connection of the window regulator,

FIG. 7 shows a detailed view of the force transmission element of FIG. 6,

8 shows the door inner panel of a motor vehicle door, with a third embodiment of a window regulator according to the invention.

FIG. 2 shows a cable window lifter 200. The cable window lifter 200 has a drive which drives a cable drum 202. The drive with its cable drum 202 are mounted on a carrier 204. The carrier 204 may be a carrier plate, such as a door inner panel, or a plastic carrier bolted to a door inner panel, for example. The plastic carrier can form a so-called door module.

On the carrier 204, a lower guide roller 206 and an upper guide roller 208 are further arranged.

A window 210, which is to be adjusted by means of the cable window lifter 200, is shown in FIG. 2 in a fully closed position. The window 210 is fixedly connected to a power transmission element 212. The power transmission element 212 has an upper projection 214 with a force application point 216 for a pull cable 218. The cable 218 is fixedly connected to the projection 214 at the force application point 216.

The force transmission element 212 has a further projection 220 on which a further force application point 222 is formed. In the exemplary embodiment considered here, the projections 214 and 220 have substantially in opposite directions, which are each substantially perpendicular to the adjustment direction 224 of the window 210. In the closed position of the window 210 shown in Figure 2, the top of the projection 220 forms a stop 226 with the pulley 208, thereby limiting the movement of the window 210 upwardly.

The force application point 222 of the power transmission element 212 is connected to a further cable 219. The cable 219 is guided via the deflection roller 208 to the cable drum 202.

In the closed position of the window 210 shown in FIG. 2, the maximum length of the cable 218 is unwound from the cable drum 202, whereas a maximum length of the cable 219 is wound on the cable drum 202.

Instead of a single cable drum 202, two separate cable drums for the ropes 218 and 219 may be present, which are driven by the same drive.

To open the window 210, the drive drives the cable drum 202 in the sense of direction 228 shown in FIG. A tensile force 230 is thereby transmitted to the force application point 216 via the cable 218. Since the power transmission element 212 is firmly connected to the window 210, the force 230 thus acts in the adjustment direction 224 on the window 210, so that the window 210 moves in the adjustment direction 224 in motion. In this case, the deflection roller 206 begins to rotate in the direction 232.

At the same time, the cable 219 is unwound from the cable drum 202, so that the guide roller 208 can rotate in the direction of sense 234. As a result, the power transmission element 212 moves from its position A shown in FIG. 2 into its position B shown in FIG. 3, in which the window 210 is fully opened. The position A of the force transmission element 212 is also shown in FIG. 3 with dashed lines. In position B, a maximum length of the cable 218 has been wound on the cable drum 202, whereas a maximum length of the cable 219 has been unwound from the cable drum 202. The window 210 is maximally opened in this position. The projection 214 is located in the position B at the height of the lower guide roller 206th

By moving the force transmission element 212 from the position A to the position B, a stroke 236 of the glass pane 210 has been realized, which is greater than the distance 238 of the deflection rollers 206 and 208. This makes it possible to carry out the carrier 204 correspondingly compact.

To close the window 210 in the adjustment direction 224, the cable drum 202 is driven in the direction opposite to the direction of sense 228 direction 240. As a result, a force 242 is transmitted to the force application point 222 via the cable 219. Since the power transmission element 212 is fixedly connected to the window 210, the force 242 also acts on the window 210, so that this is in the adjustment direction 224 in motion. Due to this, the guide roller 208 rotates in the direction of sense 234 opposite direction sense 244th

By rotation of the cable drum 202 in the sense of direction 240, the cable 218 is further unwound, so that the guide roller 206 rotates together with the window 210 in the adjustment direction 224 in a direction opposite to the direction 232 direction sense 245 due to the movement of the power transmission element 212. To close the window 210, therefore, the maximum length of the cable 218 is unwound from the cable drum 202 until the power transmission element 212 has again reached its position A.

According to a further embodiment, the deflection rollers 206 and the projection 214 may be arranged so that the underside of the projection 214 with the deflection roller 206 in the position B forms a stop, whereby the final position when opening the window 210 is clearly defined. FIG. 4 shows a further embodiment of a cable window lifter according to the invention. Elements of Figure 4 which correspond to elements of Figures 2 and 3 are identified by corresponding reference numerals.

In the embodiment of the cable window lifter 300 according to FIG. 4, two of the force transmission elements 312 and 312 'are fixedly connected to the window 310. As in the embodiment of FIGS. 2 and 3, the cable 318 is connected to the force application point 316 of the projection 314 and guided via the deflection roller 306 to the cable drum 302. Likewise, the cable 319 is guided to the force application point 322 'of the projection 320' via the upper deflection roller 308 '. When the cable drum 302 is driven in direction sense 328, the cable 318 is wound on the cable drum so that the force 330 acts on the force application point 316.

In contrast to the embodiment of Figures 2 and 3, the force application point 322 is not connected to the cable drum 302, but via a further cable 346, which is guided via a guide roller 348 with the force application point 316 'of the force transmission element 312'. Thus, a force 350 is transmitted via the cable 346 from the force application point 322 to the force application point 316 ', wherein in a symmetrical arrangement the force 350 is approximately half the force 330. As a result, the two force transmission elements 312, 312' transmit respectively for example, the force 350 on the window 310. This embodiment is therefore particularly advantageous for the realization of a window regulator, which does not require additional guide rails for the window 310.

During the opening movement of the window 310 in the adjustment direction 324, therefore, the cable 318 is wound on the cable drum 302, so that the force 330 is transmitted to the force application point 316. At the same time, the cable 319 is unwound from the cable drum 202.

Further, a portion of the force 330 is transmitted from the force application point 322 via the cable 346 to the force application point 316 ', with the cable 346 neither extending nor disengaging. is wound. The deflection roller 348 thereby rotates in the sense of direction 352, as shown in FIG.

FIG. 5 shows the embodiment of FIG. 4 after the window 310 has been completely opened. In this case, the power transmission elements 312, 312 'from the position A (shown in dashed lines in Figure 5) have moved to the position B. The resulting maximum stroke 326 of the window 310 is again greater than the distance 328 of the deflection rollers 308, 308 'and 306, 348.

In position B, the cable 318 is maximally wound on the cable drum 302, whereas a maximum length of the cable 319 is unwound from the cable drum 302. The cable 346 is neither wound nor unwound, but connects the force application points 316 'and 322 via the pulleys 308 and 348.

To close the window 310 in the adjustment direction 324, the cable drum 302 is driven in the direction sense 340, so that a force 342 is transmitted from the cable 319 to the point of force application 322 '. This force 342 is partially transmitted as a force 356 from the cable 346 to the force application point 322. In approximately symmetrical arrangement, the force 356 is approximately half of the force 342, so that the same force 356 is transmitted to both sides of the window 310 by the force transmission elements 312 and 312 ', respectively. Due to this, the window 310 or the force transmission elements 312 or 312 'moves back to the position A again.

FIG. 6 shows an embodiment of a force transmission element 412, as can be used in the embodiments of FIGS. 2 to 5 of the window regulator according to the invention. Elements of FIG. 6 which correspond to elements of FIGS. 2 to 5 are identified by corresponding reference numerals. The power transmission element 412 has a projection 414 with an opening 415 for receiving a cable 418. A tensile force can be introduced via the cable 418 onto the force application point 416 formed by the projection 414. On its underside, the projection 414 has a circular arcuate curved surface 419 for forming a stop with, for example, the guide roller 406. This stop is formed in the fully open position of the window, cf. For this purpose, the position B of Figures 3 and 5.

The power transmission element 412 has a further projection 420 to which the cable 419 is attached. A tensile force 442 can be exerted on the force application point 422 formed by the projection 420 via the cable 419.

The projections 420 and 414 are arranged offset in the adjustment direction 424.

The projection 420 has an arcuate curved surface 421 for forming a stop (see stop 226 of Figure 2) with the guide roller 408th

The power transmission element 412 further has a fastening element 458 which serves for the so-called glass connection, that is to say the attachment of the force transmission element 412 to the window pane to be moved. The fastening element 458 has in the embodiment of Figure 5, two legs 460, which are arranged opposite to each other, so that a clamp for non-positive and / or positive connection with the window pane is formed.

In the embodiment of Figures 4 and 5, a power transmission element according to the embodiment of Figure 6 may be used for both power transmission elements 312 and 312 '.

6 shows a partial section of the force transmission element of Figure 6 by the projection 414. In the embodiment shown here is located in a blind hole of the projection 414, a spring 460. The one end of the spring 460 is held by a mounting nipple 462, which is located on the Supported edges of the blind hole, so that the spring 460, which is connected at its other end to the cable 418, on the rope 418 exerts a bias. This preload has the advantage that, in the case of a possible elongation of the cable 418, which in particular which may occur after a longer period of operation, the window regulator remains fully functional.

FIG. 8 shows a motor vehicle door 564. Elements of FIG. 8 corresponding to elements of FIGS. 2 to 6 are identified by corresponding reference numerals.

The motor vehicle door 564 has a door inner panel 566 having an opening 568. The carrier 504 of an embodiment of the cable window lifter 500 according to the invention is fastened to the edges of the opening 568. The cable window lifter 500 is designed as a so-called trackless window lifter according to the embodiments of Figures 4 and 5.

Figure 8 shows the window 510 in its closed position. To open the window 510, the cable drum 502 is driven by the drive in the direction sense 528, so that the cable 518 transmits a tensile force to the power transmission element 512 and is wound on the cable drum 502, the cable 519 is unwound from the cable drum 502 and a part the tensile force transmitted via the cable 518 is transmitted from the power transmission element 512 to the power transmission element 512 'via the cable 546.

In contrast to the embodiment of FIGS. 4 and 5, the cable 546 crosses the cable drum 502. For example, above the cable drum 502 there is a metal plate over which the cable 546 can slide.

LIST OF REFERENCE NUMBERS

100 cable window lifter

102 carrier sheet

104 drive motor

106 rope

108 pulley

110 pulley

112 rope nipples

114 drivers

116 guide rail

118 stroke

120 distance

200 cable window lifter

202 cable drum

204 carriers

206 pulley

208 pulley

210 windows

212 power transmission element

214 advantage

216 force application point

218 rope

219 rope

220 advantage

222 force application point

224 adjustment direction

226 stop

228 directional sense

230 power

232 sense of direction 234 direction

236 stroke

238 distance

240 sense of direction

242 power

244 sense of direction

245 sense of direction

300 cable window lifter

302 cable drum

304 carrier

306 pulley

308 pulley

308 ¹ pulley

310 windows

312 power transmission element

312 ¹ power transmission element

314 advantage

314 ¹ lead

316 force application point

316 ¹ force application point

318 rope

319 rope

320 advantage

320 'lead

322 force application point

322 ¹ force application point

324 adjustment direction

326 stop

326 ¹ stop

328 directional sense

330 power

334 sense of direction 336 stroke

338 distance

340 sense of direction

342 power

344 sense of direction

346 rope

348 pulley

350 power

352 sense of direction

356 force

412 power transmission element

414 advantage

415 opening

416 force application point

418 rope

419 area

420 advantage

421 area

430 traction

458 fastener

460 spring

462 mounting nipple

500 cable window lifter

502 cable drum

504 carriers

506 pulley

508 pulley

508 ¹ pulley

510 windows

512 power transmission element

512 ¹ power transmission element

518 rope 519 rope

528 sense of direction

546 rope

548 Guide pulley 564 Motor vehicle door

566 door inner panel

568 opening

Claims

Patent claims

A power transmission element for a window lift (200, 300, 500) for transmitting a closing force (242, 342, 356) and an opening force (230, 330, 350) to a window (210, 310, 510), wherein the power transmission element a first force application point (216; 316, 316 '; 416) for transmitting the closing force and a second force application point (222; 322, 322'; 422) for transmitting the opening force, and wherein the force application points in an adjustment (224; 324 ) of the window and are arranged offset perpendicular to the adjustment direction.

2. Power transmission element according to claim 1, with a fastening means (458, 460) for attachment to the window,

3. Power transmission element according to claim 2, wherein the fastening means is designed to form a positive or non-positive connection with the window.

4. A power transmission element according to any one of claims 1, 2 or 3, comprising a first projection (214; 314, 314 '; 414) for forming the first point of application of force and a second projection (220; 320,320'; 420) Forming the second point of application of force, the projections pointing in different horizontal directions.

5. Power transmission element according to claim 4, wherein the projections point in substantially opposite directions.

6. Power transmission element according to claim 4 or 5, wherein the first projection is arranged above the second projection.

7. Power transmission element according to claim 4, 5 or 6, wherein the first projection has a first stop surface (419) for forming a first stop in an open position and / or the second projection has a second stop surface (421) for forming a second stop in a closed position of Window has.

8. Power transmission element according to claim 7, wherein the first and / or second stop surfaces are formed in a circular arc to form the respective stop with a deflection roller.

A power transmission element as claimed in any one of the preceding claims, wherein the first point of force application is for receiving a first cable (218; 318,346; 418; 518,546) and the second point of engagement is for receiving a second cable (219; 319,346; 419; 519 , 546) are formed.

A power window having at least one power transmission element (212; 312, 312 '; 412; 512; 512') according to any of the preceding claims 1 to 9 and a drive for transmitting an opening force (230; 330, 350) to the first force application point for opening of the window and for transmitting a closing force (242, 342, 356) to the second force application point for closing the

Window.

A window regulator according to claim 10, including a first cable (218; 318, 346; 418; 518, 546) for initiating the opening force and a second cable (219; 319, 346; 419; 519, 546) for initiating the closing force and at least one cable drum (202; 302; 502) for the first and second cables.

12. A window regulator according to claim 10 or 11, comprising a first deflection roller (206; 306; 506) for deflecting the opening force and a second deflection roller (208; 308; 508) for deflecting the closing force, the distance (238; 338) of the deflection rollers in an adjustment direction (224; 324) of the window is smaller than the maximum lift (236; 336) of the window.

A window regulator as claimed in any preceding claim 10, 11 or 12, comprising first and second ones of said power transmission members (312, 312 '), said first force application point (316') of said second power transmission member (312 ') being connected to said second force application point (322) of said second power transmission member (312') first power transmission element (312) is mechanically coupled.

14. Window lifter according to claim 13, wherein the mechanical coupling by a third pulley (348) guided third rope (346) takes place.

15. The window lifter according to claim 13, wherein the mechanical coupling is configured such that when the window is opened, a tensile force is transmitted from the second point of force application of the first force transmission element to the first force application point of the second force transmission element.

16. Window lifter according to one of the preceding claims 12 to 15, with a carrier (204; 304; 504) for the drive and the deflection rollers.

17. The window lifter according to claim 16, wherein the carrier is designed to be received in an opening (568) of a door inner panel (566).

18. Motor vehicle door with a window regulator according to one of the preceding claims 10 to 17.

19. Motor vehicle door according to claim 18 having a door inner panel (566) having an opening (568) for receiving a support of the window regulator.