JPH01284683A - Window glass lifting/lowering device for car - Google Patents

Abstract

PURPOSE:To smooth the lifting/lowering actions of a window glass accompanying the rotary motion and reduce the backlash by fitting two upper and lower sliding pieces slid on two curved rails on a carrier plate and two wire end sections near them. CONSTITUTION:A carrier plate C rotatably fitted with a rollers 4 and 5 at a vertical interval guided by nonparallelly arranged front and rear rails 1 and 2 with different degrees of curvature is fitted. One ends of wires 7 and 8 extended on the upper side and lower side are fitted near the rollers 4 and 5 of the carrier plate C via a wire hooking section 6, the other ends are connected to a driving section D. When a window glass G is to be lifted, the roller 4 is raised to drive the window glass 6, the roller 5 is pulled to the roller 4 side after it, the plate C is smoothly lifted between two rails 1 and 2 without stretching, thereby the window glass G is lifted.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a window glass lifting device for automobiles. More specifically, the present invention relates to a window glass raising and lowering device that moves a window glass with rotational motion when raising and lowering the window glass.

[Prior Art] Conventionally, a window glass lifting device for raising and lowering a window glass while rotating it when the window glass is raised and lowered has been disclosed, for example, in Japanese Patent Laid-Open No. 8
The one disclosed in Japanese Patent No. 1-92280 is known.

As shown in Fig. 7, this device has almost the same configuration as a normal lifting device (without rotational movement), except that the first carrier plate (51) is rotatable with respect to the rail (52). A lifting device (53), a first carrier play for supporting the windowpane (G) so that its inclination angle can be changed according to its lifting position; and an auxiliary guide part (55) equipped with a carrier plate (54).

[Problems to be Solved by the Invention] In the conventional device, two wires (55) and (56) are used to transmit the force for raising and lowering the window glass (G).
The end of the first carrier plate (5
It is locked at almost the same location as 1). Therefore, when pulling up the window glass (G), especially when pulling the window glass of the rear door of a car while rotating it to avoid the tire space, the second carrier plate (54
)'s guide roller (57) gets stuck on the auxiliary rail (58), causing stick-slip, and there is a problem that smooth movement cannot be changed.

SUMMARY OF THE INVENTION An object of the present invention is to solve this problem and provide a window glass lifting device for an automobile that can smoothly perform lifting and lowering operations that involve rotation.

[Means for Solving the Problems] A window glass lifting device for an automobile according to the present invention has two rails arranged at intervals from each other so as to extend vertically, and a guide rail in which at least a portion of the rail exhibits an angle, and two sliders each guided by the two rails are provided vertically apart from each other, and the window glass The carrier plate 1 supporting the carrier plate 1 has its respective ends locked in the vicinity of the slider of the carrier plate, extends upward from the vicinity of the slider on the opposite side, and extends upward from the vicinity of the slider on the lower side. It consists of two wires for lifting and lowering that extend downward from the vicinity of the mover.

[Operation] When raising the window glass, the upper slider is pulled up to drive the window glass. Therefore, the lower slider is pulled in the direction of the upper slider, so the carrier plate is not stretched between the two rails.
rise smoothly.

Similarly, when descending, the upper slider smoothly follows the corresponding rail without straining.

[Example] The present invention will now be described in detail with reference to the drawings.

FIG. 1 is a front view showing one embodiment of the device of the present invention, FIG. 2 is a partially cutaway side view of the device shown in FIG. 1, and FIG. 3 is a (
I[D-flllDll front view, FIG. 4 is a partially cutaway perspective view of the carrier play 1 of the device shown in FIG. 1, and FIGS. 5 and 6 are respectively wire stroke adjustment mechanisms related to the device of the present invention. It is a sectional view showing an example.

The elevating device shown in FIG. 1 is installed in the panel of the rear door of a hardtop vehicle, and is shown as viewed from the outside of the vehicle.

The lifting device consists of a guide rail consisting of two rails (1) and (2) arranged non-parallel to each other with an interval so as to extend vertically, and a carrier plate whose lifting movement is guided by the guide rail. (c) and driving wires (71, (81).

The rail (1) in front of the car (left side in Figure 1) (hereinafter referred to as
The front rail (referred to as the front rail) extends almost linearly, and the other rail [2] (hereinafter referred to as the rear rail) extends along the front rail (referred to as the rear rail).
), and the upper end side is the front rail (1).
The lower end side is curved to approach the front rail (1). Both rails (1), (2) are fixed to each other via a bracket and a door panel.

The upper ends of both rails (1) and (2) are inclined toward the front of the vehicle, and are convex toward the outside of the vehicle to smoothly guide the curved window glass (G). It is curved so that it becomes (see Figure 2). Each of the rails (1) and (2) is made of a metal plate bent to have a C-shaped cross section (see FIG. 4).

As shown in detail in Figures 3-4, the carrier plate (C
) is a plate-shaped base plate (3) and a plate-1-(
3) It has rollers (4) and (5) which are rotatably supported at an interval in the upper and lower directions and which move within the grooves of the rear rail (2) and the front rail (1), respectively.

Note that the rollers (4) and (5) constitute a slider.

Furthermore, base play 1- (31 rollers (4), (5
) is provided near the mounting position of the wire locking portion (6), and the wire locking portion (6) has two wires (7) for lifting and lowering that extend upward and downward. (8
) at the ends of the nipples (7a) and (8a) are locked.

Note that the wire locking portion (6) may be located within the cross section of the rails (1), (2), or may be provided outside.

The wires (7) and (8) extending vertically are reversed in direction by pulleys (9) rotatably provided at the upper end of the rear rail (2) and the lower end of the front rail (1), respectively. ) are guided to the driving part (D) side by conduits 02) and 03) which are fixed at one end to the guide members 00) and 03), respectively, which rotatably support the guide members 00) and 00). Note that the conduit 02) that guides the wire (8) extending downward is connected to the -danmae rail (
1) and is held so as to change direction approximately at right angles above the guide member 00) of the rear rail (2), from which both conduits 02) and (13) extend in parallel. However, for example, the conduit (L2a) shown by a two-dot chain line may be bent toward the drive part (D) from the middle.

Two holes 0 formed in the base plate (3)
4) is for fixing the window glass (G). In the device shown in FIG. 1, the carrier plate (C) is assembled into an integral structure, but the carrier plate (C) may be separated into left and right parts. In other words, it is sufficient if it eventually moves together after being fixed to the window glass (G).

Furthermore, in place of the roller (4L (5)), the base plate (
3) using a slide block that is rotatably provided with a pin or the like, or a disc-shaped member that is fixed to the base plate (3) and slides in the grooves of the rails (1) and (2) as a slider. May be used.

Further, although the apparatus shown in FIG. 1 uses a motor-driven drive section (D), it is of course possible to use a manually operated drive section.

Furthermore, in the device shown in Figures 1 and 2, the rails (1) and (2) are curved three-dimensionally, so the wire (
The nipples (7a) and (8a) at the ends of 7) and (8) are made spherical, and the abutment surface (6a) of the wire locking part (6) that receives the nipples is formed in a concave shape, so that the nipples (7a) and (8a) at the ends of Preferably, a stop projection (6b) is provided.

In a device configured like an upward slope, the drum (not shown) in the drive section (D) is connected to the wire (7) on the ascending side.
When the carrier plate (C) is wound up, the first end side of the carrier plate (C), that is, the vicinity of the upper roller (4) is pulled up. Therefore, the upper roller (4) smoothly ascends within the rear rail (2), and the lower roller (5) follows while being guided by the front rail (1) and ascends by 1. As a result, the carrier plate (C), and thus the window glass (G), perform an upward movement accompanied by rotation while drawing a predetermined locus.

The downwardly extending wire (8) is then pulled up by the carrier plate (c).

Therefore, only tensile stress is applied to base play 1-(3), and only torque is applied in the direction of arrow (A), so carrier play 1-(C) is applied to two rails (1) and (2). There is no tension between them.

Next, when the descending wire (8) is pulled down, the lower roller (5) is pulled down along the front rail (1), and the upper roller (4) is pulled down along the rear rail (1). 9
-c, 1° = 8 - thus moving and at the same time pulling down the force in two directions through the base plate (3). Therefore, even when lowering the base plate (3) there is an arrow (A)
Only directional torque and tensile stress are applied, and the carrier plate (C) is not stretched between the rails (1) and (2).

Note that the rollers (4) and (5) are C-shaped rails (1),
(2) A gap in the radial direction is required in order for the carrier plate (C) to roll freely inside the window glass (G), but the carrier plate (C) should be installed behind the center of gravity of the window glass (G) (on the right side in Figure 1). Ba,
Since torque is constantly applied to the carrier plate (C) in the direction of the arrow (A), no backlash occurs.

During the tilting operation, the carrier plate (C) generates rotational movement in addition to translational movement. For example, when descending, the upper roller (4) descends almost straight when it reaches the bottom of the rear rail (2), while the lower roller (5) moves in an inclined direction. Therefore, the straight line connecting both rollers (5), and therefore the carrier plate (C), rotates in the direction of the arrow (A).

Due to this rotation, the second roller (4) descends the distance (h
l) will be shorter than the descending distance (h2) of the lower roller (5). Moreover, since the upward wire (7) extends straight like a string with respect to the curved rear rail (2), the length (unwinding and winding) is equal to the moving distance of the roller (4) (b 1 ) is even somewhat shorter than .

Therefore, the upper wire (7) is unrolled and wound)
A difference occurs between the length and the winding (unwinding) length of the lower wire (8). The above also applies when the window glass (G) is raised.

If such a difference in length is minute, it can be absorbed by elastic deformation of a wire or the like, or if it is large, it is necessary to use an absorption mechanism as shown in FIGS. 5 and 6, for example.

The absorption mechanism (E) shown in Fig. 5 is one in which the ends of conduits 02) and (13) are connected to the housing (181) of the drive unit (D) via a compression spring 07). When the length of the side wires (7) and (8) is less than the actually required length and there is slack in the wires ('7) and (8), the conduit 02
), 03) in the direction of the arrow (P) to extend the effective length of the conduit, thereby taking up the slack (g).

If the difference is even larger, it is preferable to use the mechanism (F) shown in FIG. This thing consists of a drum for the upward wire (7) and a drum for the downward wire (8).
21) A difference in effective diameter is provided between the two wires and the wires are concentrically connected directly or through another member, thereby directly making a difference in the amount of wire being fed out and wound up. . In this case, even if the income and expenditure are balanced over the entire stroke, there will be a difference in the middle of the stroke, so it is preferable to use the absorption mechanism (E) shown in FIG. 5 together.

The absorption mechanism (E) may be provided on the other end side of the conduits 02), 03) (the attachment portion to the guide members (10), 01), and the absorption mechanism (P) may be provided on one side of the pulley (9). may be provided. In that case, the wire is separated at the pulley (9).

[Effects of the Invention] The device of the present invention can guide the vertical movement of a windowpane, which involves rotational movement, smoothly and with almost no play.

[Brief explanation of the drawing]

FIG. 1 is a front view showing one embodiment of the device of the present invention, FIG. 2 is a partially cutaway side view of the device shown in FIG. 1, and FIG. 3 is a (
4 is a partially cutaway perspective view of the carrier plate of the device shown in FIG. 1, and FIGS. 5 and 6 each show an example of the wire stroke adjustment mechanism related to the device of the present invention. The sectional view shown in FIG. 7 is a front view showing an example of a conventional device. (Main symbols in the drawing) (1), (2): Rail (C): Carrier plate (4), (5): Roller (7), (8): Wire = 13 -, ^I (G): Window Glass patent applicant Nippon Cable System Co., Ltd. Representative patent attorney Sota Asahina

Claims (1)

[Scope of Claims] 1. A guide rail that has two rails that extend vertically and are spaced apart from each other, and that the two rails exhibit at least a partial angle. and a carrier plate in which two sliders each guided by the two rails are vertically spaced from each other and support a window glass; and a slider of the carrier plate. 2 for lifting/lowering drive, each end of which is locked in the vicinity of the slider, and extends upward from the vicinity of the upper slider and extends downward from the vicinity of the lower slider.
An automobile window glass lifting device consisting of a wire.