DE4016009C1 - Motor vehicle window drive - has cable fixed to rail by releasable clamps to drive window raiser - Google Patents

Abstract

The cable tensioner coils bare on and off its drum and is guided in two sectors of cable off the drum crank to the guide rail and to the driver respectively. The first cable sector is led round deflector from rail end to driver and the second sector of cable is led round a deflector at the far end of the rail to the driver and joined to this. The cable (11) or sectors (12,14) should be fixed to the rail (2) via releasable clamps (16-19) to transport the window raiser (1), and also fixed to the crank (3) outlets (13,15) and to the deflectors (7,8) mounted on the rail. USE/ADVANTAGE - Car window raisers. Window raiser can be transported as adjusted, thus eliminating time lost in repeat adjustment.

Description

The invention relates to a rope tensioning device on a Window lifter for a motor vehicle according to the preamble of Claim 1.

A known window regulator for a motor vehicle (DE-PS 32 32 522) consists of a guide rail and a ver slidably guided, connectable with a window and with a crank apparatus which has a drive device and contains a rotatable rope drum. A rope is sheathed loose in a loop on the rope drum and by means of the drive device on the cable drum in both directions movable. The driver is connected to the rope, whereby this via deflection rollers at the ends of the guide rail the rope drum is guided.

The rope is on the rope stream by means of the drive device mel unwindable or windable in both directions, whereby the Driver and thus the window depending on the direction of movement one or the other side of the rope by pulling along the Guide rail is movable.

Such window regulators are advisable by the manufacturer as Mon day unit from the guide rail, the pulleys, the Rope and the crank mechanism delivered pre-assembled. From ver Packing-related reasons are fixed during transport Assignment of crank apparatus and guide rail not before, see above  that settings in the pre-assembly are not possible or must be picked up again for transport.

It is also known (DE-OS 29 29 828) in a window lifters for rope length compensation in the driver to provide.

The underlying object of the invention is before to make arrangements with a window regulator that works with a casing-guided rope is operated, a pre-assembly can be done without the settings from the pre-assembly must be kept for transport.

This task is carried out with the characteristic features of the contractor spell 1 solved.

According to claim 1, the rope or those running there Rope pieces via detachable rope clamps both at the outlets of the crank apparatus as well as on the deflection units on the Guide rail fixed in place.

The window regulator can function as a mounting unit on a plate completely assembled, adjusted and ge at the manufacturer be checked. Then the rope for transportation clamp mounted to the rope on the guide rail and on the Crank apparatus and its assignment and setting to fixie Ren. The window lifter can then from the mounting plate for the Transport can be removed, the rope clamps Ab jump of the rope from the rope drum or from the usual as deflection units designed as pulleys on the feet Prevent rail. In its free areas move the rope as desired, without the adjustment and assignment or the rope is lost from its guide elements jumps off.

After being transported to the vehicle manufacturer, the window opens lifter installed in a vehicle, due to the advance position the rope comes into its tense position. Subsequently  the rope clamps are removed and the window lifter in brought its operating state.  

Different versions of Rope clamps are used that are attached to parts or holding  support sheet metal. According to claim 2, however, it is advantageous that the rope clamps against the outgoing direction of the Support the rope on the stops, especially in connection with the rope clamp design claimed in claims 3 to 5 stanchions.

There is an inexpensive and easy to install rope clamp according to claim 3 from a plug-in on the rope clamp body by with at least one clamping part that can be pressed onto the rope and at least one wedge. By moving the clamping wedge on a conical surface there is a frictional connection to the rope upset. On the contact surface of the wedge is a Ver serration attached with a tooth position that the back push the wedge locks, so that the frictional connection remains.

According to claim 4, it is advantageous to the rope clamp from elasti cal material, in particular plastic material len, so that the teeth by elastic apart is releasable on the contact surfaces and the rope clamp after the assembly of the window regulator can be removed again. With the features of claim 5 is a concrete execution tion of a rope clamp, which with simple manufacture easy to assemble and detach again. The Ab The cable clamp or wedges are supported on the holding device sheet. When installing the rope clamp, the rope is on due to the training with the conical surfaces in the rope drum or on the guide rollers in the guide rail times excited. During the transportation of the window regulator forces from the loose cable connection between the crank arm Advice and guide rails are created. By the claimed off Cable clamps are routed with this type of load additional tension forces on the rope over the cone in the Rope clamp. The rope clamp is locked via the one-sided toothing. For loosening after the window lifter has been completed In the vehicle there is a tab on the rope clamp that overrides the gearing and thus the Disassembly allows.  

It is in the formation of the window lifter according to the invention expedient according to claim 6, known devices for length compensation in the case of rope elongation in the driver assign.

With the aid of a drawing, an embodiment of the invention is shown with further features, details and advantages explained.

It shows

Fig. 1 a window in the mounted state,

Fig. 2 shows a window in the transport state,

Fig. 3 shows a cross section through a cable clamp.

In Fig. 1, a window regulator 1 is shown with a guide rail 2 and a crank mechanism 3 .

On the guide rail 2 , a driver 4 is slidably leads, with which a window pane can be connected. At the ends of the guide rail 2 , retaining plates 5 , 6 are fastened, on which deflection units in the form of deflection rollers 7 , 8 are fastened.

The crank 3 consists of a (not shown Darge presented) drive device, for. B. a hand crank, and a rotatable cable drum 9 , which is arranged on a holding plate 10 .

A rope 11 is looped in a loop around the rope drum 9 , a first piece of rope 12 being guided via a first rope outlet on the crank apparatus 3 to the upper deflection roller 7 and along the guide rail 2 to the driver 4 and connected there. Correspondingly, a second piece of rope 14 is guided over a second rope outlet 15 and over the lower deflection roller 8 to the driver 4 and also connected there.

The rope 11 can be designed as an annular closed loop loop fe.

In the form described above ( Fig. 1 without rope clamps), the window regulator is completely assembled, adjusted and checked by the manufacturer on a functional plate. This is also the operating state when the window regulator (after removing the rope) is installed ready for use in the vehicle.

When the cable drum 9 rotates, depending on the direction of rotation, a train is exerted on the cable 11 or on the first cable section 12 or second cable section 14 , which is transmitted to the driver 4 and moves it either upwards or downwards. For this function, especially with regard to suitable crank moments, self-locking, etc., it is necessary to set and fix the assignment between the guide rail and the crank mechanism, in particular with regard to the cable tension. This is done by the manufacturer on the above-mentioned functional plate.

Rope clips 16 , 17 are then attached to the outlets 13 , 15 of the crank mechanism 3 and rope clips 18 , 19 to the outlets of the deflection rollers 7 , 8 . These rope clamps hold the rope tension both in the crank mechanism and in the area of the guide rail and thus the setting made.

For transportation, the window regulator 1 is removed from the function plate as a whole, as a result of which the cable connections between the guide rail 2 and the crank mechanism 3 are loose, as is shown in FIG. 2. From this it can be seen that the transport volume for the window regulator 1 is relatively small and, despite the loose cable connection, the setting is retained and the cable 11 can neither jump off the guide rail 2 nor from the crank mechanism 3 .

In Fig. 3 is a section through a cable clamp 20 Darge provides. This consists of a clamp body 21 with a central bore or a central gap 22 for receiving the cable 11 . Opened on both sides and in the middle from the front side are openings 23 , 24 in the clamp body 21 , which narrow towards the inside via a conical sliding surface 25 , 26 . Radially outside are two additional limitation surfaces 27 , 28 of the openings 23 , 24 parallel to the rope 11 . The lower boundary surface 28 is formed as a smooth surface, while a toothing 29 is provided on the upper boundary surface 27 . In this area on the end face a radially projecting tab 30 is attached.

In the openings 23 , 24 , a wedge piece 31 with two clamping wedges 32 , 33 is inserted. The wedge piece 31 protrudes on the front side over the terminal body 21 and is supported on a holding plate 34 , which is designed as a stop.

The cable clamp 20 has the following function: When the clamping wedges 32 , 33 are loosely inserted into the openings 23 , 24 , the cable clamp 20 is plugged onto the cable 11 and with the end faces of the clamping wedges 32 , 33 on the holding plate 34 is brought into contact with the system. Now the clamping member is nachgeschoben in cable direction against the retaining plate 34 21, whereby the anlie the rope 11 constricting the clamping parts 35, 36 of the clamp body 21 are pressed against the rope 11 and the toothing 29 further locked until a relative to the holding plate 34 and the rope 11 tense and frictional condition is reached.

The cable clamps 16 , 17 and 18 , 19 act for tensioning and fixing the cable 11 on the crank apparatus 3 and the guide rail 2, respectively, together.

To release the cable clamps 20 after installing the window lifter 1 on a vehicle, the tab 30 is raised, where it can be loosened by the toothing 29 and the cable clamp 20 can be removed. The cable clamps 20 can be reused if necessary.

In summary, it is found that with the invention Window lifter is created that is simple and cost  inexpensive version a good transport option under Bei Retain an assignment between Füh tion rail and crank apparatus.

Claims (6)

1. rope tensioning device on a window lifter for a motor vehicle,
with a guide rail and a slide guided thereon, connectable with a window pane, driver,
with a crank apparatus which contains a drive device and a cable drum rotatable therewith,
with a guided in at least one loop on the cable drum, continuous, casing-free cable that is movable by means of the drive device on the cable drum in both directions, the cable being guided with two pieces of cable over two outlets from the crank mechanism to the guide rail or to the driver that the first piece of rope is guided via a first deflection unit at one end of the guide rail to the driver along the guide rail and connected to the driver and the second piece of rope is guided accordingly via a second deflection unit at the other end of the guide rail to the driver along the guide rail and with the driver is connected, characterized in that the rope ( 11 ) or the rope pieces ( 12 , 14 ) via releasable rope clips ( 16 , 17 , 18 , 19 ) for the transport of the window regulator ( 1 ) both at the outlets ( 13 , 15 ) of the cure belapparats ( 3 ) and on the deflection units ( 7 , 8 ) at the Füh tion rail ( 2 ) can be fixed in place. 2. Rope tensioning device according to claim 1, characterized in that the cable clamps ( 16 , 17 , 18 , 19 ) against the outgoing direction at stops ( 34 ) on the crank mechanism ( 3 ) or the guide rail ( 2 ) or the deflection units ( 7 , 8 ) and thereby fix the guide rail ( 2 ) and the rope pieces assigned to the crank mechanism ( 3 ) for transport. 3. Rope tensioning device according to claim 1 or 2, characterized in that the rope clamp ( 20 ) a via the rope ( 11 ) pluggable clamp body ( 21 ) with at least one on the rope ( 11 ) pressable clamping part ( 35 , 36 ) and with at least contains a clamping wedge ( 32 , 33 ), by moving the clamping wedge ( 32 , 33 ) on a conical surface ( 25 , 26 ) with the clamping part ( 35 , 36 ) a pressure and thus non-positive connection can be applied to the cable ( 11 ) and that on the contact surface ( 27 , 28 ) of the clamping wedge ( 32 , 33 ) on the terminal body ( 21 ) a toothing ( 29 ) is attached, with a tooth position that blocks the pushing back of the clamping wedge ( 32 , 33 ). 4. Rope tensioning device according to claim 3, characterized in that the rope clamp ( 20 ) is at least partially made of ela-elastic material and the teeth ( 29 ) can be released by resiliently bending apart the contact surfaces ( 27 ). 5. Rope tensioning device according to one of claims 1 to 4, characterized in that
that the cable clamp ( 20 ) consists of a clamp body ( 21 ) with a central bore or a central gap ( 22 ) for receiving the cable ( 11 ),
that openings ( 23 , 24 ) are made in the terminal body ( 21 ) on both sides, offset from the front,
that the openings ( 23 , 24 ) become narrower towards the inside via a conical sliding surface ( 25 , 26 ) which lies towards the center,
that the openings ( 23 , 24 ) each have a parallel to the Seilrich direction and radially outer surface ( 27 , 28 ) with little least one toothing ( 29 ),
that on the outside of the clamp body ( 21 ) at the beginning of the toothing ( 29 ) has a tab ( 30 ) for lifting the toothing ( 29 ) is attached and
that in the openings ( 23 , 24 ) wedges ( 32 , 33 ) are inserted, the openings ( 23 , 24 ) protrude from the front and which are on fixed parts, in particular holding plates ( 34 ) of the crank apparatus ( 3 ) and Support the guide rail ( 2 ). 6. Rope tensioning device according to one of claims 1 to 5, characterized in that devices for the Längenaus are arranged in the same way with a rope elongation in the driver ( 4 ).