JPH06193341A - Window glass winder - Google Patents

Abstract

PURPOSE:To obtain a compact window glass winder which is capable of allowing an elevating body to go up and down, precisely corresponding to the ascending/descending direction of the window glass whether the surface of the window glass is flat or curved. CONSTITUTION:Both ends of a flexible threaded shaft 7 is supported with a gearbox 15 and caps 22 fixed to the upper and the lower ends of a guide post 6 so that both ends of the shaft can rotate freely. A window glass elevating body 8 which is guided with the guide post 6 is screwed down onto the threaded shaft 7, and the elevating body 8 is moved upward and downward by normal and reverse rotations of the threaded shaft 7 which is driven with a driving device 24 provided in the gearbox 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a window glass lifting device for opening and closing windows provided on doors of automobiles.

[0002]

2. Description of the Related Art Conventionally, a pantograph-type window device composed of an X-shaped link has been widely used as a window glass lifting device in an automobile.

[0003]

The pantograph type lifting device requires a large setting space inside the door because the X-shaped link moves in a wide range. Further, the rising and lowering direction of a curved windowpane widely used in recent automobiles changes according to its vertical position, whereas the lifting and lowering body of the pantograph-type lifting device moves linearly. It is necessary to provide means for absorbing the deviation in the ascending / descending direction between the ascending / descending devices, which causes play and increases in ascending / descending resistance.

The present invention has been made in view of the above circumstances, and has a small setting space and a flat surface of a window glass.
An object of the present invention is to provide a compact window glass lifting device capable of accurately lifting and lowering an elevating body regardless of a curved surface shape along the elevating direction.

[0005]

In order to achieve the above object, the present invention provides a flexible screw screwed with an elevating body at upper and lower ends of a guide column for guiding an elevating body connected to a window glass. The upper and lower ends of the shaft are rotatably supported, and a drive means capable of rotationally driving the screw shaft is connected to the screw shaft. To do.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

First, in FIG. 1, a door 1 of an automobile is provided with a window glass lifting device 4 of the present invention in a hollow portion 3 formed below a window 2, and the window 4 is opened and closed by the device 4. A window glass 5 made of curved glass is attached.

2 and 3, the window glass lifting device 4 is curved so as to fit the curved shape of the window glass 5 and extends vertically, and is fixed to the lower end of the guide column 6. And a gear box 15 to be operated. As shown in FIG. 4, the guide column 6 includes a channel portion 6a having a U-shaped cross section with an open surface facing inward of the door 1 and a pair of rails 6b, 6 protruding from both front and rear edges of the channel portion 6a.
and a pair of front and rear reinforcing ribs 6c, 6c are formed on the outer surface of the channel portion 6a. A flexible screw shaft 7 is vertically arranged in the channel portion 6a.

The elevating body 8 which is guided to move up and down by the guide column 6 has a pair of front and rear guide grooves 9, 9; 9 and 9, which engage with the rail portions 6b, 6b, and the channel portion 6a. A pair of upper and lower support arms 10 and 10 projecting inside are provided, and each support arm 10 has a screw hole 10 screwed into the screw shaft 7.
a is provided.

Further, the lifting body 8 is formed with a pair of flange portions 8a, 8a projecting in the front-rear direction.
A pair of glass holders 11, 11 for holding the lower end of the window glass 5 are fixed to a and 8a by bolts 12, respectively.

As shown in FIG. 5, the screw shaft 7 has a coil spring 7a closely wound and the coil spring 7a.
And a flexible core body 7b formed by filling a synthetic resin into the hollow part of the core. In this way, the screw shaft 7
It provides moderate flexibility and strong torsional rigidity.

An upper end portion 13a of a metallic drive shaft 13 is mold-bonded to the lower end of the core body 7b. The upper end portion 13a of the drive shaft 13 is formed into a square shaft and the core body 7b is formed.
An anchor hole 14 is provided to be filled with the material forming the.

The drive shaft 13 is rotatably supported by the gear box 15 via a pair of upper and lower bearings 16, 16. The lower end of the drive shaft 13 has a rectangular joint portion 13
The joint portion 13b is formed on the boss b of the worm wheel 17 disposed in the gear box 15. Also, the gear box 15 has
A worm 18 that meshes with the worm wheel 17 is provided and an electric motor 19 that can drive the worm 18.
(See FIG. 3) is attached to the outside of the gear box 15 with bolts 20. Thus, the drive shaft 13, the worm wheel 17, the worm 18, and the electric motor 19 are connected to the screw shaft 7
Drive means 24 for.

Further, as shown in FIG. 2, the core body 7 of the screw shaft 7 is
A support shaft 21 is molded and coupled to the upper end of b similarly to the drive shaft 13. The support shaft 21 has a cap 22 fixed to the upper end of the guide column 6 via a bearing 23 in order to regulate the upper limit of the lifting body 8. It is rotatably supported. In this way, the screw shaft 7 is supported by the cap 22 and the gear box 15 at both ends, and thus is bent along the curved shape of the guide column 6.

The gear box 15 has a plurality of ears 25, 25.
(FIG. 3) is provided in place, and these ears 25, 25 are fixed to the inner plate 1a of the door 1 by bolts 26. The cap 22 is also fixed to the inner plate 1a with bolts 27.

In FIG. 2, reference numeral 1b indicates an outer plate of the door 1.

Next, the operation of this embodiment will be described. When the window 2 of the door 1 is open, the lifting / lowering body 8 descends to the lowest limit as shown in FIG.

When the electric motor 19 is normally rotated to close the window 2, the rotation is transmitted to the worm wheel 17 via the worm 18, and the drive torque of the worm wheel 17 is transmitted to the screw shaft via the drive shaft 13. 7 is rotated forward as indicated by arrow R in FIG. According to the normal rotation of the screw shaft 7, the elevating body 8 into which the screw hole 10a is screwed is guided by the guide column 6 and ascends together with the window glass 5 to close the window 2.

It will be understood that when the electric motor 19 is then rotated in the reverse direction, the screw shaft 7 is also rotated in the reverse direction, and the lift 8 is lowered together with the window glass 5.

By the way, since the screw shaft 7 has flexibility, the screw shaft 7 can be always rotated while maintaining the bending state following the guide column 6 even when the screw shaft 7 is rotated.
Can efficiently transmit the lifting force without applying lateral pressure to the lifting body 8 guided by the guide column 6. As a result, the window glass 5 can be lifted and lowered easily even with a relatively small rotating torque of the electric motor 19.

In the above embodiment, various design changes can be made without departing from the gist of the present invention. For example, when the window glass has a flat shape, the guide column 6 is formed in a linear shape. Further, when the coil spring 7a alone has a sufficient torsional rigidity, the core 7b may not be used, and the screw shaft 7 may be composed of only the coil spring 7a. In this case, the drive shaft 13 and the support shaft 21 are directly fixed to the coil spring 7a. Further, the screw shaft 7 can be integrally formed of fiber reinforced synthetic resin. Further, instead of the electric motor 19, a manual handle is used for the worm 1.
It is also possible to manually move the lifting and lowering body 8 by connecting the lifting and lowering body 8 to the lifting and lowering body 8.

[0022]

As described above, according to the present invention, the upper and lower ends of the guide column for guiding the elevating body connected to the window glass,
The upper and lower ends of a flexible screw shaft screwed with the elevating body are rotatably supported, and a drive means capable of rotationally driving the screw shaft is connected to the screw shaft. Since the body is moved up and down, there is no overhanging part like the X-shaped link of the pantograph type lifting device, and it is extremely compact, so it can be easily installed even in a narrow space. Moreover, since the screw shaft that drives the lifting body is flexible, the guide column that guides the lifting body can be matched with the shape of the window glass together with the screw shaft. Always match the direction accurately and efficiently transmit the lifting force to the window glass,
The window glass can be easily moved up and down, and the occurrence of backlash can be reduced.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a device of the present invention.

FIG. 2 is a vertical sectional front view of the device of the present invention (a sectional view taken along line 2-2 of FIG. 3).

3 is a sectional view taken along line 3-3 of FIG.

4 is a sectional view taken along line 4-4 of FIG.

5 is a sectional view taken along line 5-5 of FIG.

[Explanation of symbols]

 4 Window Glass Lifting Device 5 Window Glass 6 Guide Column 7 Screw Shaft 8 Lifting Body 24 Driving Means

Claims (1)

[Claims] 1. An elevating body (8) connected to a window glass (5).
The upper and lower ends of a flexible screw shaft (7) screwed with the lifting body (8) are rotatably supported by the upper and lower ends of a guide column (6) that guides the guide shaft. This driving means (2
A window glass lifting device for lifting and lowering a lifting body (8) by forward and reverse rotation of a screw shaft (7) by 4).