JPS5886278A - Window regulator - 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 The present invention relates to a wire-driven window regulator. More specifically, the present invention relates to a window regulator that can automatically absorb wire elongation and can be handled as one compact unit.

Window regulators that convert the rotary and reciprocating operation of a lever or the like into linear movement of raising and lowering a window glass have recently been switched from gear arm type to wire-driven type due to demands for weight reduction. Such a wire-driven window regulator has the advantage that it is relatively easy to separate the driving device from the driven device, so each device can be mounted at a position suitable for its function. An example of such a window regulator is the one disclosed in Japanese Utility Model Application Laid-Open No. 55-103376. Such a window regulator consists of a drive device and a driven device, and the driven device includes a bracket that fixes the window glass, and a shaft that is provided in the vertical direction and that can slidably guide the bracket.
Two wires are engaged with the bracket and extend in the vertical direction of the guide rail. The driving device is engaged with a pulley formed by winding one end of each of the two wires in opposite directions and engaging the leading end of each wire, a casing that rotatably supports the pulley, and the pulley. It consists of a lever. A driven device and a driving device having such a basic configuration are installed at an appropriate location such as a car door, and the wire is routed between them in a loop to transmit power from the driving device to the driven device. are doing. That is, by rotating the lever, one end of the wire is wound around the pulley and the other end is unwound from the bobber, the loop of wire is slid in one direction, and the bracket engaged with part of the wire is moved onto the guide rail. The window glass is raised and lowered by sliding along the window. Such a window regulator has the advantage that the driven device and the drive device can be easily installed at appropriate positions relative to the door, etc., but the disadvantage is that the window regulator cannot be handled as a single unit. be. In other words, workers must accurately install multiple devices, and after installing each device, they must route the wires and adjust the length of the wires to give the appropriate tension to the wires. Therefore, a great deal of effort is required for installation. In addition, regular window regulators come with a balance spring mechanism that balances the weight of the glass and makes operation easier, and a wire stretch absorption mechanism (described later), but the installation of these mechanisms and the wiring for them are difficult. If this is also included, the installation work will require even more labor.

Further, in these window regulators, the wires stretched between each device need to be routed in a straight line in order to transmit power. In other words, unlike cable wires that are guided through conduits, etc.
If the wire is not stretched in a straight line, it cannot transmit power. Therefore, there is a restriction that each device must be arranged two-dimensionally, so to speak, and there is also a drawback that the installation space must be extremely large.

On the other hand, wires made of stranded metal wires have the characteristic that they elongate when tension is applied, especially at the beginning of the wire's use.

Therefore, devices that employ wires as power transmission means require a mechanism to absorb such elongation and restore appropriate tension to the wires.

Wire-type window regulators are also equipped with a tension boob or bolt-on donut type wire elongation absorption mechanism, but the operator must always check the extent of the elongation or wire slack in these wire elongation absorption mechanisms. However, the elongation absorption mechanism has to be operated as necessary, which is extremely troublesome for the operator.

Furthermore, in the window regulator disclosed in the above-mentioned Japanese Utility Model Publication No. 55-105376, the main part of the driving device or the driven device is arranged below the door, etc., and the wire is routed below the door. . However, these devices have drawbacks such as rainwater adhering to the wires and devices for a long time, which can cause the wires and devices to rust, or freeze in winter or in cold regions, making the device inoperable.

Therefore, the inventors of the present invention have eliminated the above-mentioned drawbacks, and are able to handle the driving device and the driven device as one compact unit although they are substantially separate, which requires less space for installation, and furthermore, The present invention was completed as a result of extensive research in order to provide a window regulator that automatically absorbs the elongation of windshield by operating a drive device, is less susceptible to creeping and rusting, and is easy to operate.

That is, the present invention is a wire-driven window regulator having the basic configuration described above, in which a guide member is provided at the lower end of the guide rail of the driven device, and a cable guide is provided at the upper end to slidably guide the wire. The cable guide and the drive device are connected by two parallel flexible conduits that slidably guide the wire, and the pulley of the drive device has a first ratchet tooth cut into the periphery of one side. and consists of two pulleys, a first pulley engaged with the lever, and a second pulley having second ratchet teeth cut into the periphery of one side that can mesh with the first ratchet teeth, The first pulley and the second pulley are pressed against each other by an elastic member, and the present invention relates to a window regulator that can automatically absorb the elongation of a wire when a window glass is raised or lowered by rotating a lever.

Furthermore, the present invention provides a window regulator having all of the above-mentioned configurations, wherein a space is provided on the other side of the 21st bar, one end of which is connected to the casing, and the other end of which is connected to the second boob. The present invention relates to a window regulator that accommodates a locked spiral spring.

Next, one embodiment of the window regulator of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic perspective view showing an embodiment of the window regulator of the present invention, FIG. 2 is a schematic perspective view showing an embodiment of the drive device according to the present invention, and FIG. 3 is a schematic perspective view showing an embodiment of the drive device according to the present invention. 4 is a schematic perspective view showing another embodiment of the drive device according to the present invention, FIG. 5 is a longitudinal sectional view of the drive device shown in FIG. 4, and FIG. 6 is a view of the window regulator shown in FIG. 1. FIG.

As shown in FIG. 1, the window regulator of the present invention has a driving device (1) and a driven device (2) connected by two parallel flexible conduits (8).

The driven device (2) includes one guide rail (4) provided substantially in the vertical direction, and a bracket (6) slidably provided on the guard rail (4) to which the window glass (5) can be fixed. Basic configuration, plus guide rail (4)
A guide member (7) is provided at the lower end of the wire, and a cable guide (8) is provided at the upper end to slidably guide the wire (9), α0). Wire (9), (10
) has locking members (9a) and (1
o) is provided on the bracket (6).
a) to be locked to the bracket (6) and extend downward and upward, respectively.

A wire (9) extending downward engages with the guide member (7) and is slidably guided so as to change direction upward;
A cable guide (8) is reached in parallel with the upwardly extending wire (10). The wires (9) and (10) are slidably guided within the cable guide (8) so as to change their directions approximately at right angles, and furthermore, one end is fixed to the cable guide (8) and the other end is connected to the drive device. A drive ring 01) is slidably guided in parallel in two flexible conduits (3) fixed to a casing (11), and a shaft rotatably provided in the casing 0]). ) and the corresponding axis (□□
A first pulley (B) is fitted in a non-rotatable manner to the □ and has first ratchet teeth (13a) carved on the periphery of one side, and a first pulley (B) is fitted in a rotatable manner to the shaft (B), a second ratchet tooth (1) that can mesh with the first ratchet tooth (13a);
4a) - second pulley 04 carved on the periphery of the side
), an elastic member 05) inserted between the second pulley 04) and the casing (11) and urging the second pulley θ4) toward the first boot +) (1a), and an elastic member 05) at the shaft end of the shaft 02). It consists of a fixed lever 06).

The wires (0), (1 (locking members (9b), (lob) fixed to the leading edge of the other end of the IJ) are attached to the outer peripheries of the first boo (903) and the second pulley (0), respectively. Locking holes (13b, (141)) are bored, and wires (9), 00) are wound in opposite directions.

Next, the functions and effects of the window regulator, which is constructed in such a way as to be more expensive, will be explained.

As shown in FIG. 2, when the lever (16) is rotated in the horizontal direction, the first ratchet tooth (13a) and the second ratchet tooth (14a) are in the meshing direction, so the first pulley 03 and The two pulleys rotate together in the direction (A),
The wire 00) is wound around the second pulley α4), the wire (9) is unwound from the first pulley (13), and the loop of wires (9) and (10) is slid as shown by the arrow (0). move.

Therefore, the bracket (6), to which one end of the wires (9), 00) is locked, slides upwards on the guide rail (4) and the window glass (5) is closed.

Conversely, when the lever 06) is rotated in the (B) direction, the first pulley 08) rotates in the (B) direction, winds the wire (9), absorbs the elongation of the wires (9) and (10), After the tension in the entire loop of wire is restored, the tension causes the second
Wire 00) while rotating pulley a4) in direction (B)
bring out. At that time, the second pulley 04) is provided with an elastic member (
A braking force is acting based on the pressing force received from g)), and a tension corresponding to the braking force is applied to the wire.

As mentioned above, in the window regulator of the present invention, wire elongation is automatically absorbed by raising and lowering the window glass, so it is necessary to adjust the wire length each time the wire elongates. There is no.

Furthermore, after attaching the window regulator to the door of an automobile, the tension of the wire can be adjusted very easily by simply operating a lever.

In addition, in the window regulator of the present invention, the driving device (1) and the driven device (2) are firmly connected by two parallel flexible conduits, and the wire slides inside while maintaining tension. Because it is guided so that it can move freely, the window regulator can be handled as one simple unit, and each device can be
It can be easily attached without being affected by the attachment state of the other, and can be handled as a substantially separate device. Therefore, the work of attaching the window regulator to a door or the like can be carried out extremely easily.

Further, there is no restriction that each device must be arranged in a plane, and it is easy to configure it as shown in FIG. 6, for example.

In addition, since there is a high degree of freedom in mounting position,
It has high versatility, and has the great advantage that, for example, a common window regulator can be used for doors of different types of automobiles, and costs can be reduced.

In contrast to the window regulator, which can provide an advantage in terms of value, when the drive device is configured as shown in FIGS. 4 and 5, even more useful effects can be brought about. That is, in the drive device (101) shown in FIG.
) is provided with a cylindrical cavity (17) on the side opposite to the side on which the second ratchet tooth (13a) is carved;
One end (18a) of the casing (11) is placed in the space 07).
A spiral spring (18) whose other end (1sb) is respectively locked to a second pulley 08) is housed, and the spiral spring extension) is connected to a first ratchet tooth (13&) and a second ratchet tooth (14&). is biased in the direction (in the embodiment shown in FIG. 4, the direction (A)) such that it rotates idly.

A window regulator with such a spiral spring 08) operates in the same way as the aforementioned window regulator without the spiral spring, but the spiral spring (E) causes the second pulley (1→ to move in the direction (A)). Since it is always energized, it has the function of applying a braking force to the second pulley 03) together with the elastic member (5) in the operation of absorbing the elongation of the wire. Therefore, the wire (9
), ◇0) are given more reliable tension.

Furthermore, since the second pulley (13) is biased in the direction (A) in which the wire 00) is wound, the window glass (5) is always biased upward via the wire (]0). In other words, the Uzumaki Spring Co., Ltd. functions as a balance spring for the window glass (5). Therefore lever 0
6) The rotational operating force becomes extremely light.

As mentioned above, since the window regulator of the present invention has a built-in balance spring, the window regulator can be made more compact than those in which the balance spring mechanism is installed separately from the drive device, and it can be used for automobile doors, etc. The installation work can be simplified.

Further, the window regulator of the present invention includes a wire (9),
Since the wiring of (10) is carried out only at the top and is covered with the conduit (8), there is less risk of water droplets such as rainwater adhering to the wire, and the guide rail (4)
Since only the guide member (7) is placed below the cable guide (8) and the balance spring mechanism, which has less risk of retaining water droplets, it is less likely to rust and will not operate due to freezing. It is also possible to eliminate such shortcomings.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view showing an embodiment of the window regulator of the present invention, FIG. 2 is a schematic perspective view showing an embodiment of the drive device according to the present invention, and FIG. 3 is a schematic perspective view showing an embodiment of the drive device according to the present invention. 4 is a schematic perspective view showing another embodiment of the drive device according to the present invention, FIG. 5 is a longitudinal sectional view of the drive device shown in FIG. 4, and FIG. 6 is a view of the window regulator shown in FIG. 1. FIG. (Main symbols in the drawing) (1): Drive device (2): Follower device (3): Conduit (4): Guide rail (5): Window glass (6) Ni bracket (7) Ni guide member (8): Cable guide (9), 00): Wire 01): Casing (12): Shaft 03): First pulley (13a): First ratchet tooth 04): Second pulley (14a): Second ratchet tooth a5) Elastic part θ6) Nilever (17): Blank space (E): Spiral spring; 173 Figure 25

Claims (1)

[Scope of Claims] 1. A driven device having at least one guide rail provided in the vertical direction, a bracket slidably provided on the guide rail and to which a window glass is attached, and a driven device that is attached to the bracket. A wire that is stopped and extends in the vertical direction of the guide rail, a pulley in which both ends of the wire are wound in opposite directions and each tip end is locked, and a casing that rotatably supports the boob. and a drive device having a lever engaged with the pulley, and by rotating the lever of the drive device, a window glass can be raised and lowered along a guide rail via a wire, A guide member is provided at the lower end of the guide rail, and a cable guide is provided at the upper end to slidably guide the wire, and the cable guide and the drive device can slidably guide the wire. The pulley is connected by two parallel flexible conduits, the pulley has first ratchet teeth carved on the periphery of one side, the first pulley is engaged with the lever, and the pulley has first ratchet teeth on the periphery of the - side. It consists of a second pulley with second ratchet teeth carved therein that can mesh with the teeth, and the first and second boots are pressed against each other by an elastic member, and the lever can be rotated. A window regulator that can absorb the elongation of the wire when raising and lowering the window glass. 2. A driven device having at least one guide rail provided in the vertical direction; a bracket slidably provided on the guide rail and to which a window glass is attached; A wire extending in the vertical direction, a bobbin in which both ends of the wire are wound in opposite directions and each end is locked, a casing that rotatably supports the pulley, and a casing that is engaged with the pulley. and a drive device having a lever that is fitted together, and by rotating the lever of the drive device, a window glass can be raised and lowered along a guide rail via a wire, the window regulator comprising: a lower end of the guide rail; A guide member is provided at the upper end, and a cable guide is provided at the upper end to slidably guide the wire. connected by a flexible conduit, the pulley having first ratchet teeth cut into the periphery of one side and engaged with the lever; a second boot having second ratchet teeth carved therein and a cavity provided on the other side; and a spiral spring having one end locked in the casing and the other end locked in the second boob in the cavity. is accommodated, the first pulley and the second pulley are pressed against each other by an elastic member, and the window glass can be raised and lowered easily by rotating a lever, and the elongation of the wire can be absorbed.