KR100861113B1 - Windows lift apparatus for car - Google Patents

Abstract

The present invention relates to a window lift apparatus for an automobile, and more particularly, an upper roll and a lower roll disposed in an up and down direction inside a door; A driving roll disposed at a position lower than the upper roll and higher than the lower roll in the door; A wire wound around the upper roll, the lower roll, and the driving roll, the wire being coupled to the window of the automobile door and installed to run along a predetermined track in the interior of the door; An automobile window lift apparatus comprising a drive means for reciprocating the wire to rotate the drive roll to move the window up and down, wherein a guide groove portion through which a running wire passes is formed, and the running wire is guided. Further comprising a friction member for providing a friction force to the wire by being in contact with the side wall of the groove, the friction member relates to a vehicle lift apparatus disposed between the drive roll and the lower roll. Lift device for a vehicle according to the present invention having such a configuration is to maintain a constant tension on the wire so that unnecessary noise is not generated from the drive means.

Upper Roll, Lower Roll, Wire, Window Lift

Description

Window lift apparatus for automobiles

1 is a window lift apparatus for a vehicle according to the prior art.

FIG. 2 is a drive means for constructing a window lift apparatus for a vehicle of FIG. 1; FIG.

3 is an operation diagram showing a state in which the worm and the worm wheel shown in FIG.

4 is an operation diagram showing a state in which the worm and the worm wheel shown in FIG. 2 is engaged when the window is lowered.

5 is an automobile window lift apparatus according to an embodiment of the present invention.

6 is a plan view showing in detail the friction member shown in FIG.

7 is a perspective view of the friction member of FIG.

8 is a front view of the friction member of FIG.

9 is a plan view of a friction member according to another embodiment of the present invention.

10 is a front view of the friction member of FIG.

<Detailed Description of Drawings>

1 ... window lift unit 10 ... upper roll

11 ... lower roll 12 ... drive roll

20 ... wire 30 ... drive means

31 ... Worm 32 ... Worm wheel

33.Motor 40 ... Guide rail member

50 ... window 60 ... friction member

61.Guide groove 62 ... One side wall

63. Other side wall 64 ... First curved groove

65. Second curved groove 70. Rubber material

80 ... Door

The present invention relates to a window lift device for an automobile, and more particularly, a frictional force is applied to a wire to prevent noise generated between a worm and a worm wheel that transmits rotational force of a motor to reciprocate the wire when the window is lowered. It relates to a window lift device for a vehicle to provide.

In general, a vehicle window lift apparatus refers to a device for opening and closing a window provided in a door of a vehicle.

As shown in FIG. 1, the automotive window lift apparatus 1 includes an upper roll 10, a lower roll 11, a driving roll 12, a wire 20, and a driving means 30.

The upper roll 10 and the lower roll 11 are disposed in the vertical direction on the guide rail member 40 inside the door, and are rotatably supported by the guide rail member 40. The driving roll 12 is disposed at a position lower than the upper roll 10 and higher than the lower roll 11 inside the door. The wire 20 is coupled to the window 50 of the automobile door 80, and wound around the upper roll 10, the lower roll 11 and the driving roll 12, and defined in the interior of the door. It is installed to run along the track. The driving means 30 rotates the driving roll 12 to reciprocate the wire 20 so that the window 50 moves up and down.

Meanwhile, the door 80 is provided with a glass run 81 and a waste seal 82 to maintain airtightness so that water or air does not penetrate into the door when the window 50 is moved up and down, and the window 50 is provided. ) Moves up and down while contacting the glass run 81 and the waste seal 82.

FIG. 2 is an exploded perspective view showing in detail the driving means 30 of the conventional vehicle window lift apparatus 1 shown in FIG. 1, wherein the driving means 30 is connected to the motor shaft 34 of the motor 33. It is composed of a worm 31 and a worm wheel 32 to be engaged with the wheel, the drive roll 12 is connected to the worm wheel 32 and the coaxial. A wire 20 is wound around the driving roll 12, and the wire 20 reciprocates a predetermined track as the driving roll 12, which is powered by the driving means 30, rotates.

The prior art having such a configuration works as follows.

First, when the wire 20 is driven in the direction of elevating the window 50, the window 50 is elevated while overcoming the frictional force generated between the glass run 81 and the weight seal 82.

In addition, when the wire 20 travels in the opposite direction, the window 50 descends while being in contact with the glass run 81 and the weight seal 82. At this time, the driving means 30 transmits the driving force of the motor 33 to the driving roll 12 by engaging the gear teeth 31a and 32a of the wheel wheel 32 and the worm 31.

The window 50 that performs this operation is more than the sum of the self-weight W of the window 50 acting downward and the frictional force F acting downward opposite to the moving direction of the window 50. The driving force (P> W + F) of the driving roll 12 for pulling 50 should be large. At this time, the friction force is generated by contact with the glass run 81 and the weight seal 82.

On the other hand, since the weight and frictional force of the window 50 always have a value greater than zero, the driving force will always have a value greater than zero. In addition, since the sum of the magnetic weight and the frictional force of the window 50 is always greater than zero, the tension applied to the wire 20 also always has a value greater than zero.

On the other hand, the gear teeth 31a, 32a of the wheel wheel 32 and the wheel 31 are provided with a predetermined clearance 35 in the engagement area. In this state, if the wire 20 provides continuous traction to the worm wheel 32 in a constant direction, the worm wheel 32 moves in the direction in which the wire 20 is pulled, as shown in FIG. The gear teeth 31a and 32a of the wheel wheel 32 and the wheel 31 provide the driving force of the motor 33 to the wire 20 while maintaining contact with each other.

However, when the window 50 is lowered, the weight of the window 50 acts downward, and the frictional force acts upwardly opposite to the moving direction of the window 50. The frictional force is a value that varies depending on the contact condition with the window 50. When the frictional force is the same as the weight of the window 50 while the window 50 moves, the tension applied to the wire 20 is zero. When the frictional force is greater than its own weight, the tension acting on the wire 20 becomes greater than zero. In this case, when the tension becomes zero, the gear teeth 32a of the worm wheel 32 do not maintain contact with the gear teeth 31a of the worm 31 and are disposed at predetermined positions between the gaps 35. When the tension is greater than 0, the gear teeth 32a of the wheel wheel 32 remain in contact with the gear teeth 31a of the worm 31 again. As described above, the gear teeth 31a and 32a of the worm wheel 32 and the worm 31 are not kept in contact with each other, and the contact and non-contact are repeated. In this process, the contact noise caused by intermittent contact This is caused.

The noise generated when the window 50 is lowered not only affects operability, but also transmits vibration to peripheral devices, thereby lowering the life of the machine.

The present invention has been made to solve such a problem, and relates to a window lift apparatus for automobiles for removing noise generated by the driving means when the window is lowered.

An automobile window lift apparatus of the present invention for achieving the above object is an upper roll and a lower roll disposed in the vertical direction inside the door; A driving roll disposed at a position lower than the upper roll and higher than the lower roll inside the door; A wire wound around the upper roll, the lower roll, and the driving roll, the wire being coupled to the window of the automobile door and installed to run along a predetermined track in the interior of the door; In the window lift apparatus for a vehicle comprising a driving means for reciprocating the wire so that the window is elevated by rotating the drive roll,

A guide groove portion through which the traveling wire passes is formed, and further comprising a friction member providing frictional force to the wire by bringing the traveling wire into contact with the side wall of the guide groove portion, wherein the friction member includes the driving roll and the driving roller. It is arranged between the lower rolls.

In the vehicle window lift apparatus, the guide groove portion is preferably configured such that a wire passing through the guide groove portion sequentially contacts one side wall of the guide groove portion and the other side wall facing the one side wall.

In the vehicle window lift apparatus, the guide groove portion includes a first curved groove portion and a second curved groove portion connected to the first curved groove portion, and a center of curvature of the first curved groove portion and a center of curvature of the second curved groove portion. Preferably, the guide grooves are positioned in regions opposite to each other.

In the vehicle window lift apparatus, the friction member is preferably made of synthetic resin.

In the vehicle window lift apparatus, a rubber material is preferably provided on the sidewall of the guide groove portion in which the wire contacts.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

5 is a window lift apparatus for a vehicle according to an embodiment of the present invention, Figure 6 is a plan view showing in detail the friction member shown in Figure 5, Figure 7 is a perspective view of the friction member of Figure 6, Figure 8 is a view 6 is a front view of the friction member.

The automotive window lift apparatus 1 includes an upper roll 10, a lower roll 11, a driving roll 12, a wire 20, a driving means 30, and a friction member 60. Since the roll 10, the lower roll 11, the driving roll 12, the wire 20, and the driving means 30 are the same as those mentioned in the related art, the same reference numerals are used and the specific technical reference will be considered. .

The friction member 60 provided in the present embodiment is made of synthetic resin, and the guide groove 61 through which the traveling wire 20 passes is formed, and the traveling wire 20 is formed of the guide groove 61. The friction member 60 is disposed between the drive roll 12 and the lower roll 11 by providing a friction force to the wire 20 by being in contact with the side wall.

At this time, the guide groove 61 is a wire 20 passing through the guide groove 61, the one side wall 62 of the guide groove 61 and the other side wall (63) facing the one side wall (62) Is configured to sequentially contact. In addition, the guide groove 61 includes a first curved groove portion 64 and a second curved groove portion 65 connected to the first curved groove portion 64, the first curved groove portion 64 ) And the center of curvature 64a, 65a of the second curved groove 65 are located in regions opposite to each other with the guide groove 61 as a boundary.

The vehicle window lift apparatus 1 according to the present embodiment provided with such a configuration operates as follows.

The wire 20 passing through the guide groove 61 reciprocates while sequentially contacting the one side wall 62 and the other side wall 63 in the guide groove 61 of the friction member 60. In this case, the wire 20 is provided with frictional force while contacting the one side wall 62 and the other side wall 63 of the guide groove 61, so that the tension of the wire 20 is always zero or more when the window is lowered. To be able. As such, when the tension applied to the wire 20 is always greater than zero, the wheel wheel 32 and the gear teeth 31a and 32a of the worm 31 connected to the wire 20 are in a contact state as shown in FIG. 3. It is possible to operate while maintaining, thereby eliminating the contact noise caused by poor contact of the gear teeth 31a, 32a of the worm wheel 32 and the worm 31.

On the other hand, in this embodiment, the reason that the wire 20 is in contact with the one side wall 62 and the other side wall 63 in sequence, the wire 20 when the wire 20 is in contact with the friction member 60 only at one point. If the tension of) weakens, the wire 20 does not come into contact with the friction member 60 and sufficient friction force may not occur. On the contrary, when the wire 20 contacts the friction member 60 at at least two facing points, even if the wire 20 is weakened in tension, the wire 20 may be zigzag and may receive sufficient frictional force.

The wire 20 is disposed between the drive roll 12 and the lower roll 11. The reason for this is that when the window 50 is raised, the wire 20 between the driving roll 12 and the upper roll 10 is pulled tightly because it is pulling the window 50, but the driving roll 12 and the lower portion The wires 20 located between the rolls 11 only serve to be pulled up by the window 50, and the tension is not large. Therefore, when the window 50 is raised, the wire 20 moves between the guide grooves 61 of the friction member 60 in a loose state between the driving roll 12 and the lower roll 11.

On the contrary, when the driving roll 12 pulls the wire 20 in order to lower the window 50, the wire 20 is provided with a constant frictional force by the friction member 60 to move the worm wheel 32 in one direction. The gear teeth 32a of the wheel wheel 32 are brought into contact with the gear teeth 31a of the worm 31. In this case, since the wire 20 is constantly provided with a constant degree of frictional force, the gear teeth 32a of the worm wheel 32 can always contact the gear teeth 31a of the worm 31. On the other hand, the magnitude of the friction force provided by the friction member 60 in the present embodiment is calculated in advance the minimum friction force required for the wire 20, the friction member 60 and the wire so that the friction force can be sufficiently obtained Adjust the degree of contact of (20). That is, when a large amount of frictional force is required by design, the friction member 60 is disposed in the guide groove 61 of the friction member 60 so that the wire 20 can be contacted in a large area. When a degree of frictional force is required, the friction member 60 is disposed so that the wire 20 may be less in contact with the guide groove 61 of the friction member 60.

Various modifications are possible in addition to the embodiments described above.

First, in the above-described embodiment has been described an example in which the wire 20 is in contact with the two points of the guide groove 61, it is also provided that the wire 20 is in contact with the three points of the guide groove 61 while providing a friction force It is possible. However, even in this case, the wire 20 is not only in contact with one side wall 62, but alternately contact with one side wall 62 and the other side wall (63).

Second, in the present embodiment has been described an example in which the wire 20 is in direct contact with the side wall of the guide groove 61, it is also possible to provide a rubber material 70 in the contact portion of the side wall. Referring to FIGS. 9 and 10, the rubber material 70 is attached to both the one side wall 62 and the other side wall 63 in an area where the wire 20 is in contact. The rubber material 70 has a higher coefficient of friction than synthetic resin. Therefore, when the wire 20 is in contact with the rubber material 70, a higher friction force can be obtained. Therefore, when a large friction force is required for the wire 20, it is preferable to attach the rubber material 70 to the friction member 60.

Meanwhile, in addition to the rubber material 70, various materials having a high coefficient of friction may be attached to the sidewalls attached to the wire 20. The wire 20 may be attached to the friction member 60 without attaching a separate rubber material 70 to the friction member 60. It is also possible to increase the roughness of the contact area that 20 is in contact with.

Although the present invention has been described in detail with reference to embodiments and various modifications, the present invention is not necessarily limited to these embodiments and modifications, and various modifications may be made without departing from the spirit of the present invention. Can be.

According to the window lift device for automobiles as described above, even when the window is lowered, the wire pulls the worm wheel of the driving device with sufficient friction, so that the gear teeth of the worm wheel and the worm continuously maintain the contact state. There is an advantage that can prevent unnecessary noise in the drive device.

In addition, in the present invention, if the rubber material is attached to the portion of the guide groove of the friction member in contact with the wire has an advantage that can further increase the friction force.

Claims (5)

An upper roll and a lower roll disposed in the up and down direction inside the door; A driving roll disposed at a position lower than the upper roll and higher than the lower roll in the door; A wire wound around the upper roll, the lower roll, and the driving roll, the wire being coupled to the window of the automobile door and installed to run along a predetermined track in the interior of the door; In the window lift apparatus for a vehicle comprising a driving means for reciprocating the wire so that the window is elevated by rotating the drive roll, A guide groove portion through which the traveling wire passes is formed, and further comprising a friction member providing frictional force to the wire by bringing the traveling wire into contact with the side wall of the guide groove portion, wherein the friction member includes the driving roll and the driving roller. Disposed between the lower rolls, The window lifter for automobiles, characterized in that the rubber material is provided on the side wall of the guide groove portion in contact with the wire. The method of claim 1, The guide groove portion is a window lift apparatus for a vehicle, characterized in that the wire passing through the guide groove portion is configured to sequentially contact one side wall and the other side wall facing the one side wall of the guide groove portion. The method of claim 2, The guide groove portion includes a first curved groove portion and a second curved groove portion connected to the first curved groove portion, And a center of curvature of the first curved groove portion and a center of curvature of the second curved groove portion are located at regions opposite to each other with the guide groove portion as a boundary. The method of claim 1, The friction member is a vehicle window lift device, characterized in that made of synthetic resin (synthetic resin). delete

Images