JPH02279887A - Window glass drive device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a window glass drive device used to open and close a window glass provided on an automobile door or the like.

[Prior Art and its Problems] Conventionally, in order to open and close a window glass provided on a car door, etc., a wire rope is usually used, as shown in FIG. 7(A). A holder (5) that spans the wire rope (1) from the drive wheel (2) to the driven wheel (3) provided at an appropriate position, and holds the window glass (4) at an appropriate position on the wire rope (1). The window glass (4) is held by this holder (5), and the window glass (4) is attached to a car door or the like.

Then, the drive wheel (2) on which the wire rope (1) is spanned in this way is rotated, and the wire rope (1) is
), thereby raising and lowering the window glass (4) held by the holder (5) to open and close the window glass (4).

Here, when the wire rope pulley 1) is used to drive the window glass (4), the wire rope (1) is simply stretched from the driving wheel (2) to the driven wheel (3). Now, the wire rope (1) slips and the drive car (
2) rotates idly, making it impossible to open and close the window glass (4).

For this reason, conventionally, as shown in FIG.
A locking groove (6) is provided on each side wall (2a) of the drive wheel (2).
are provided, and both ends of the wire rope (1) are fitted into the locking grooves (6), respectively, and the wire rope (1) is fitted in the locking grooves (6) so that both ends of the wire rope (1) do not come off. Both ends of the rope (1) are connected to the drive wheel (2).
) to lock both ends of the wire rope (1) to the drive wheel (2), and also wrap it around the window glass (4
) according to the distance to drive the wire rope (1
) was further wrapped around the drive wheel (2) several times.

As the drive wheel (2) around which the wire rope (1) is wound rotates, the drive wheel (
The wire rope (1) wrapped around the drive wheel (2) is sent out while the wire rope (1) is tied to the drive wheel (2).
At the other end, the wire rope (1) sent out as described above was wound around a drive wheel (2 wheels).

However, in this way, both ends of the wire rope (1) are fitted into the locking grooves (6) provided on the drive wheel (2), and the wire rope (1) is attached to the drive wheel (2) at both ends.
The work of winding and locking the wire rope around the outer circumference of the window glass (4) usually has to be done manually and is extremely troublesome. ) had to be wrapped around the drive wheel (2) many more times, which caused the problem of very poor workability.

In addition, in this way, the wire rope (1) can be connected to the driving vehicle (
2), even when wrapped around a wire rope (1
There is a risk that the wire rope (1) wrapped around the drive wheel (2) may come off the drive wheel (2) due to the elastic return force of the drive wheel (2).
When setting the wire rope (1) wrapped around the
) must be done carefully so that it does not come off the drive wheel (2), resulting in a problem that work efficiency is greatly reduced.

For this reason, when driving window glass, it may be possible to use a timing belt instead of the wire rope described above, but timing belts lack flexibility and cannot be used by twisting or bending them in opposite directions. In addition, since the length and condition of the teeth are predetermined, the size and arrangement of devices that can use it are limited, and it lacks versatility as a device for driving window glass. There was also a problem that the cost was high.

Problem to be solved by the invention C] The object of the present invention is to solve the above-mentioned problems when opening and closing a window glass provided on a door of an automobile by driving the window glass. be.

In other words, the present invention eliminates the trouble of winding and locking both ends of the wire rope around the driving wheel, unlike conventional window glass driving devices using wire ropes, to drive the window glass, and is useful for automobiles. To easily set the device in a predetermined position on a door, etc., and to be able to use it in various places without lacking in versatility, unlike when a timing belt is used to drive window glass. The challenge is to

[Means for Solving the Problems] In order to solve the above-mentioned problems, in the window glass drive device according to the present invention, first, the screw portion is made of flexible linear resin around the outer periphery of the rope (11). The driving rope (10) formed with (12) is used.

Then, this driving rope (10) is introduced into a guide groove (21) provided around the outer peripheral surface (20a) of the driving wheel (20), and the screw portion (12) of this driving rope (10) This driving rope (10) is fitted into tooth grooves (22) provided on the outer peripheral surface (20a) of the driving wheel (20) at required intervals along the guide groove (21). A holder for holding the window glass (30) at an appropriate position on the drive rope (10), which is formed in an endless shape by spanning the outer peripheral surface (20a) of the drive wheel (20). The tool (31) was attached.

[Function] In the window glass drive device configured as described above,
When the driving wheel (20) is rotated, the driving rope (l) stretched over the outer peripheral surface (20a) of the driving wheel (20)
The screw portions (12) of the drive wheel (20) successively mesh with the tooth grooves (22) provided on the outer peripheral surface (20a) of the drive wheel (20), and the drive rope (lO) )
The guide grooves (21) provided around the outer circumferential surface (20a) of the guide grooves (21) sequentially guide the guide grooves (21) and drive the guide grooves (21).

As the driving rope (10) is driven as described above, the window glass (30) held by the holder (31) provided at an appropriate position of the driving rope (10) is moved by the holder. (31) and is now driven.

[Example] Hereinafter, an example of the present invention will be specifically described based on FIGS. 1 to 6.

In this embodiment, as the driving rope (10), as shown in FIG. A rope (11) coated with a resin is used, and a spiral screw part (12) is formed on the outer periphery of the rope (11) using a flexible linear resin such as polyurethane or polyamide. using something.

However, the driving rope (10) used here is not limited to this type, and the rope (11) has flexibility,
A material with high tensile strength, resistance to elongation, and excellent durability against repeated fatigue, etc. is used, and the outer periphery of the screw part (12) is made of a material with excellent wear resistance.
If it is provided with this, it can be suitably used.

For example, it is also possible to use a resin rope made of polyimide resin or the like as the rope (11), and to form the screw portion (12) directly on the outer periphery of the rope using a resin wire made of polyurethane or polyamide resin.

On the other hand, as shown in FIG. 3, the drive wheel (20) on which the drive rope (10) is spanned has a drive A guide groove (21) for introducing the rope (10) is provided around the circumference, and a screw portion (
12) is used, which is provided with a tooth groove (22) into which the tooth groove (22) is inserted.

In this embodiment, the screw portion (12) of the driving rope (10) is connected to the driving wheel (20).
), in order to mesh well with the tooth grooves (22) of this screw part (12
) is formed of a linear resin having almost the same thickness as the rope (11) of the drive rope (10), while the tooth groove (2
2) to the guide groove (21) and screw part (12)
The angle θl of this tooth groove (22) with respect to the guide groove (21) is approximately the same as the pitch of the screw part (12).
) with respect to the rope (11) is approximately the same as the angle θ2.

Then, the driving rope (10) is connected to this driving wheel (20).
), as shown in Fig. 4, the screw portion (20a) of the drive rope (10) is
12) so as to mesh with the tooth groove (22),
This driving rope (10) is connected to the outer peripheral surface of the driving wheel (20) (
20a) into the guide groove (21) provided therearound.

Next, the outer circumferential surface (2) of the drive wheel 20) is
In this embodiment, as shown in FIG.
0), the driving rope (10) is formed into an endless shape, and an appropriate position of the endless driving rope (10) is formed. Attach the holder (31) to the holder (31).
) to hold the window glass (30).

Although not shown, the driven wheel (40) provided below the driving wheel (20) also has a driving rope (10) introduced into its outer peripheral surface, as in the case of the driving wheel (20) described above. It is preferable to use one that is provided with a guide groove and has tooth grooves into which the screw portion (12) of the drive rope (10) is inserted.

Then, in this way, the driving rope (10) is connected to the driving wheel (2).
0) and the driven wheel (40) provided below it, and when the driving wheel (20) is rotated, this driving wheel (2
0) and the driving rope (1) spanning the driven vehicle (40).
0) is the guide groove (
21), and its screw portion (12) is driven by successively meshing with the tooth grooves (22) of the rotating drive wheel (20) and driven wheel (40), and along with this, the holder (31)
The window glass (40) held by the window glass (40) is raised and lowered.
0) is designed to open and close.

In addition, in this embodiment, as described above, the driving rope (10) is stretched over the driving wheel (20) and the driven wheel (40) provided below the driving wheel (20).
The driving rope (10) is driven between the driven vehicle (40) and the window glass (30) to raise and lower the window glass (30).As shown in FIG. , (
40) are arranged at a required interval in the vertical direction, and the driving rope is connected to the driving wheel 20) and these two driven wheels (40),
(40), and the driven vehicle (40), (40
), a holder (31) is attached to the drive rope (10), the window glass (30) is held by the holder (31), and the drive rope ( The window glass (30) is raised and lowered as the drive wheel (10) is driven, and the driven wheel (40) is placed at a position horizontally at a required distance from the driving wheel (20), as shown in FIG. and the driving rope (10) is spanned between the driving wheel (20) and the driven wheel (40),
It is also possible to drive the window pane (30) horizontally.

[Effects of the Invention] As detailed above, in the window glass driving device according to the present invention, the driving rope, in which the screw portion is formed of flexible linear resin on the outer periphery of the rope, is attached to the outer periphery of the driving wheel. The drive wheel is rotated so that the screw portions of the drive rope are successively engaged with the tooth grooves provided on the outer circumferential surface of the drive wheel. The drive rope is guided in sequence through the guide grooves provided, and the window glass held by a holder provided at an appropriate position of the drive rope is driven accordingly. ing.

As a result, the present invention does not require the trouble of winding and locking both ends of the wire rope around the driving wheel, unlike conventional methods that use wire ropes to drive window glass, and can be used on car doors, etc. It is now easier to set the window glass in a specified position, and there is no lack of versatility like when using a timing belt to drive the window glass. can now be driven.

[Brief explanation of drawings]

Fig. 1 is a schematic front view showing one embodiment of the present invention, Fig. 2 is a partially cutaway front view of the driving rope used in the same embodiment, and Fig. 3 is a driving vehicle used in the same embodiment. side view,
Fig. 4 is a partially cutaway front view showing the state in which the driving rope is stretched around the outer periphery of the driving wheel in the same embodiment;
6 and 6 are respectively schematic front views showing other embodiments of the present invention, and FIGS. 7(A) and 7(B) are schematic front views of a conventional example using a wire rope and winding the wire rope around a drive wheel. FIG. Explanation of symbols (10)...Driving rope (11)...Rope (
12)...Screw part (20)...Reducer (2
1)...Guide groove 22)...Tooth groove (30)
... Window glass (31) ... Holder gruel figure 0a 5% figure

Claims (1)

[Claims] 1. Rope (11) A driving rope (10) having a screw part (12) formed of flexible linear resin on the outer periphery.
) into the guide groove (21) provided around the outer peripheral surface (20a) of the drive wheel (20), and the screw portion (12) of the drive rope (10) is introduced into the guide groove (21).
) of the drive wheel (20) at required intervals along the outer peripheral surface (
The driving rope (10) is formed into an endless shape by spanning the outer peripheral surface (20a) of the driving wheel (20) so as to fit into the tooth groove (22) provided in the driving wheel (20a). A window glass driving device characterized in that a holder (31) for holding a window glass (30) is attached to an endless driving rope (10) at a suitable position.