JPH0235823B2 - WAIYASHIKIUINDOREGYUREETANOWAIYAYURUMIBOSHISOCHI - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wire loosening prevention device for a wire type wind regulator in an automobile.

As an automobile window regulator, a wire is stretched along a line that roughly matches the up-and-down locus of the window glass, and both ends of the wire are hung on a drum that rotates by rotating an operating handle, etc., and the drum is rotated. As a result, one end of the wire is wound around the drum, and at the same time the other end is unwound from the drum, causing the wire to move up and down the trajectory of the window glass.
A wire-type window regulator has been developed and is already in common use, which moves downward and raises and lowers the window glass connected to the wire.

In the wire-type wind regulator as described above, when assembling and fixing the wind regulator to a door panel or a vehicle body panel, it is difficult to assemble the wire with a predetermined tension applied to it. Further, the wire inevitably becomes loose due to elongation of the wire itself due to use.

If the wire is slack, the window glass will rattle in the vertical direction, making it impossible to move up and down smoothly, and if the wire is slack, there is a risk that the wire will come off the pulley and become inoperable.

The present invention provides a device that automatically prevents the wire from becoming loose as described above and can maintain the wire at a predetermined tension for a long period of time. Explain with reference to.

In Fig. 1, reference numeral 1 denotes a guide rail, pulleys 2 and 2' are provided above and below the guide rail 1, and a glass bracket 3 fixed to the guide rail 1 near the lower edge of the window glass is arranged vertically. The window glass is slidably fitted into the glass bracket 3.
It is guided by a guide rail 1 via a guide rail 1 so that it can move up and down.

Reference numeral 4 denotes a drum rotatably attached to the base plate 6, and the drum 4 is rotatably driven by the rotation operation of the operating handle 5 or the rotation (forward or reverse) of an electric motor.

Reference numeral 7 denotes a connecting member that connects the guide rail 1 constituting the window glass guide section A and the base plate 6 constituting the driving section B. An intermediate pulley 8 is provided near the fixed portion of the connecting member 7 to the guide rail 1. A wire 9, which is rotatably mounted and whose one end is wound and fixed around the drum 4, is hung around the intermediate pulley 8, and then passed from the upper pulley 2 to the lower pulley 2', and then from the lower pulley 2' to the intermediate pulley 8. After being hung, the other end is wound around the drum 4 and fixed, and the portion of the wire 9 between the upper and lower pulleys 2, 2' is connected to the glass bracket 3.

Reference numeral 10 denotes a wire guide member made of a spring piece attached to the center portion of the connecting member 7. As shown in FIG.
0a and 10b are formed in a protruding shape approximately in a figure eight shape, and a guide portion 1 that slidably supports the wire 9 is fitted and supported at the tips of the arm portions 10a and 10b.
0a' and 10b' are formed.

The guide portions 10a', 10b' are provided with a synthetic resin layer on their surfaces by means of coating or fitting, so that the wire 9 can slide smoothly.

The wire guide member 10 is attached to the connecting member 7 by caulking and fixing the pin 11 to the connecting member 7 with the coil portion 10a fitted onto the pin 11.

and 2 between the drum 4 and the intermediate pulley 8.
The wires 9a, 9b are connected to the wire guide member 10.
The guide parts 10a' and 10b' are fitted into the guide parts 10a' and 10b'.

Then, since the arm parts 10a and 10b have a spring force in the direction of expanding each other, when the wire 9 has a predetermined tension, the tension of the wire 9 is equal to the spring force of the arms 10a and 10b. Once upon a time 9
a and 9b are in a straight line state, and by rotating the drum 4, one end of the wire 9 is wound around the drum 4, and at the same time, the other end is unwound from the drum 4, and the glass bracket connected to the wire 9 is wound. 3 is guided by the guide rail 1 and moves upward and downward to raise and lower the window glass.

When the wire 9 becomes slack, the arms 10a, 1
0b operates in the direction of mutual expansion by its own spring force, and presses and holds the wires 9a and 9b between the drum 4 and the intermediate pulley 8 from a straight state to a dogleg state, thereby changing the width of the wires 9. The slack can be absorbed, and in this state the window glass can be raised and lowered in the same manner as described above. Therefore, the arm portions 10a, 10 with respect to the distance between the wires 9a, 9b from the drum 4 to the intermediate pulley 8
By appropriately setting the length of b and the spring force, the wire 9 on both the winding side to the drum 4 and the unwinding side can maintain a state in which it is always stretched with a predetermined tension for a long period of time. This allows the window glass to open and close smoothly.

The embodiment shown in FIG. 1 shows an example in which one end of the connecting member 7 is connected to the base plate 6 and the other end of the connecting member 7 is connected to the center of the guide rail 1. However, as shown in FIG. The connection position to the guide rail 1 is the lower end (or upper end) of the guide rail 1.
Then, the wire 9, whose one end is wrapped around the drum 4 and fixed, is connected to the lower pulley 2' (or the upper pulley 2).
Upper pulley 2 (or upper pulley 2')
After wrapping it around the lower pulley 2' (or upper pulley 2), wrap the other end around the drum 4 and fix it. Place 9c on one side of glass bracket 3
The present invention can also be applied to a device in which the window glass can be raised and lowered by the rotation of the drum 4 by coupling the drum 4 to the lower pulley 2' (or the upper pulley 2). By pushing and spreading the wires 9a', 9b' between the wires by the arms 10a, 10b of the wire guide member 10, the slack in the wire 9 can be absorbed as in the embodiment shown in FIG.

In FIG. 2, the same reference numerals as in FIG. 1 represent the same parts.

As described above, according to the present invention, the wire is made up of two arm parts each having a spring force in the direction of mutual expansion and expansion, and having a guide part at the tip for slidably engaging and holding the wire. The guide member is attached to the connecting member that connects the glass guide part and the drive part, and the wires on both the winding side and the unwinding side to the drum are attached to the guide parts provided at the ends of the two arm parts of the wire guide member. With an extremely simple structure that requires only engagement and support, slack in the wire can be accurately absorbed by the tensioning action of the two arms themselves using the spring force, allowing stable lifting and lowering of the window glass over a long period of time. It can be accurately maintained, has a small number of parts, is inexpensive, and is easy to assemble, which together with the fact that it can bring about great practical effects.

[Brief explanation of drawings]

FIGS. 1 and 2 are front explanatory views showing embodiments of the present invention, and FIG. 3 is a perspective view showing an example of the structure of the wire guide member shown in FIGS. 1 and 2. A... Window glass guide section, B... Drive section, 1...
Guide rail, 2, 2'... Pulley, 3... Glass bracket, 4... Drum, 6... Base plate, 7... Connecting member, 8... Intermediate pulley, 9...
...Wire, 10...Wire guide member, 10a, 1
0b...Arm part, 10a', 10b'...Guiding part,
10c...Coil part, 11...Pin.

Claims (1)

[Claims] 1. A guide rail with pulleys attached to the top and bottom and a base plate to which a drum is rotatably attached, which is rotated by operating the operating handle, are connected by a connecting member, and both ends of the wire stretched between the top and bottom pulleys are connected to the drum. By winding and fixing the wire and rotating the drum, one end of the wire is wound around the drum and at the same time the other end is unwound from the drum, so that the window glass connected to the wire is guided by the guide rail and moves up and down. In the wire-type wind regulator made of 1. A wire loosening prevention device for a wire type wind regulator, characterized in that a guide portion provided in the wire slideably engages and supports the winding side of the wire onto the drum and the side from which the wire is unwound from the drum.