JPH082378Y2 - Window regulator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a window regulator for opening and closing a window glass of a vehicle door, particularly a window regulator suitable for use in a vehicle door having no window frame. Regarding

[Prior Art] Generally, a window regulator A for a vehicle is
As shown in the figure, a rail b is provided inside the door a with its longitudinal direction oriented substantially vertically, and a slider d provided on this rail b so as to be movable in its longitudinal direction and to which a window glass c is attached. The window glass c is opened and closed by vertically moving the slider d via the wire f by the regulator handle e.

By the way, in the above window regulator A, since the slider d moves up and down the rail b,
There is an unavoidable gap between the rail b and the slider d.
Due to this gap, the attitude of the slider d with respect to the rail b may be deviated, and the attitude of the window glass c may be deviated. Particularly, when the window glass c is fully closed, the window glass c is held by the door a.
Since it was only a part of the, the posture was out of order. As a result, in a vehicle in which the door a does not have a window frame, the upper edge of the window glass c does not match the opening edge g of the vehicle body, and a gap is created between the two, and rainwater may enter through the gap.
Alternatively, there was a problem that a wind noise was generated during traveling.

In order to solve such a problem, actual development Sho 61-120886
The one described in the publication is proposed. The window regulator B described in this publication, as shown in FIG.
A holding mechanism i is provided at the upper end of the rail b. The holding mechanism i is composed of an elastic member j provided on the rail b and an abutting member k provided at the tip of the elastic member j. Has been done.

In such a window regulator B, when the slider d is moved upward, when the side portion of the slider d starts to contact from the lower end portion of the abutting member k near the upper end portion of the rail b and is positioned at the uppermost portion. To contact the entire contact member k. At this time, the slider d pushes the contact member k away from the rail b without merely contacting the contact member k. As a result, the elastic member j elastically deforms, and the elastic force presses the slider d in the lateral direction of the rail b. As a result, the attitude of the slider d is stabilized, which in turn stabilizes the attitude of the window glass c.

[Problems to be Solved by the Invention] In the above-mentioned conventional window regulator B, since the slider d moves upward while being in contact with the contact member k in a state where the elastic member j is elastically deformed, the slider d and the contact member. k
A great amount of frictional resistance is generated between and. Therefore, a large driving force is required during the upward movement of the slider d. Therefore, when the slider d is manually operated, there is an unnecessary concern that the operator may have an abnormality in the window regulator B, and when the slider d is driven by a motor or the like, the slider d There is a problem that the speed of the window glass changes rapidly before and after the contact with the contact member k.

The present invention has been made to solve the above problem, and it goes without saying that the attitude of the window glass can be set to a desired attitude, and the driving force required for the vertical movement of the slider is large during the movement of the slider. It is an object of the present invention to provide a window regulator that can be prevented from changing.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention provides a rail that is arranged with its longitudinal direction substantially in the vertical direction, and a rail that is movably provided in the longitudinal direction. A slider to which a window glass is attached, and a holding mechanism which is provided between the slider and the rail and pushes the slider toward the side of the rail when the slider moves to the upper end of the rail. In the window regulator, the pressing mechanism is composed of the following (a), (b), (c) and (d).

(A) A displacement member provided on either one of the rail and the slider so as to be displaceable in the lateral direction of the rail.

(B) An elastic member that biases the displacement member in the lateral direction of the rail.

(C) A roller provided on the displacement member so as to be rotatable about an axis in a direction orthogonal to the longitudinal direction of the rail and a side direction thereof.

(D) A pressing member which is provided on the other of the rail and the slider, contacts the outer peripheral surface of the roller, and moves the roller in a direction opposite to the urging direction of the elastic member.

[Operation] When the slider is moved upward, the pressing member comes into contact with the roller midway. At this time, the pressing member contacts the roller while moving the roller in the direction opposite to the biasing direction of the elastic member, so that the slider is pressed by the elastic member in the lateral direction of the rail through the roller. This pressing force makes the posture of the slider at the upper end of the rail a desired posture.

Further, after the pressing member comes into contact with the roller, the slider moves up and down while receiving the pressing force.However, since the pressing member makes rolling contact with the roller, the driving force necessary to move the slider up and down is the pressing member. There is almost no change before and after contact with.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. 1 is a front view of the window regulator C according to the present invention, FIG. 2 is an enlarged sectional view taken along the line II-II of FIG. 1, and FIG. 3 is an enlarged view of a main part.

As shown in FIG. 1, this window regulator C
Is a door (not shown) with its longitudinal direction oriented almost vertically.
And a slider 2 movably provided in the rail 1 in the longitudinal direction.

As shown in FIG. 2, the rail 1 has a quadrangular cross section with an open front center portion, and a guide portion 1a extending in the longitudinal direction is formed inside the rail 1. An upper bracket 3 and a lower bracket 4 are fixed to the upper end and the lower end of the back surface of the rail 1, respectively. A pulley 5 is rotatably provided on one side (right side) of the upper bracket 3, and a pulley 6 is rotatably provided on one side of the lower bracket 4 on the same side as the pulley 5. A wire 7 driven by a drive device (not shown) is wound around these pulleys 5 and 6. A part of the wire 7 located between the pulleys 5 and 6 extends along the rail 1 and the slider 2 is fixed thereto. Therefore, when the wire 7 is driven by the driving device, the slider 2 moves up and down along the rail 1.

The slider 2 is arranged on the front side of the rail 1 so as to cover the rail 1, and three screw shafts 8 projecting from the front side are fixed. A window glass (not shown) is attached to the front surface of the slider 2 by the screw shaft 8. Support shafts 9 and 10 projecting from the rear surface and entering the guide portion 1a of the rail 1 are fixed to the upper end and the lower end of the slider 2, respectively. Each of the support shafts 9 and 10 has a support roller 11 or 1 disposed inside the guide portion 1a.
2 are attached rotatably. The diameter of each of the support rollers 11 and 12 is slightly smaller than the width of the guide portion 1a. Therefore, the support rollers 11 and 12 move in the guide portion 1a while the outer circumferences of the support rollers 11 and 12 are in rolling contact with one of the two side surfaces 1b and 1c of the guide portion 1a, whereby the slider 2 moves to the rail 1. It is supported freely.

It should be noted that the rail 1 is curved like the window glass (curved so that the central portion protrudes toward the front side more than the upper and lower end portions) so that an unreasonable force does not act on the window glass when the slider 2 moves up and down. The slider 2 is adapted to move along the curvature of the window glass. However, an unreasonable force may act on the window glass when the slider 2 moves up and down due to manufacturing error, mounting error, or the like.

In order to prevent such a problem from occurring, in this window regulator C, the width of the lower support roller 12 is substantially the same as the depth dimension of the guide portion 1a, but the upper support roller 12 is supported. As shown in FIG. 2, the width of the roller 11 is smaller than the depth dimension of the guide portion 1a. Therefore, the slider 2 and the window glass fixed to the slider 2 use the lower support roller 12 as a fulcrum,
The upper end of the slider 2 is the width of the upper support roller 11 and the guide portion.
The rail 1 can be rotated toward and away from the rail 1 by a difference from the depth dimension of 1a. Further, the support shafts 9 and 10 and the support rollers 11 and 12 are in spherical contact, and as a result,
The slider 2 and the window glass are rotatable about a line segment connecting a connecting portion between the support shaft 9 and the supporting roller 11 and a connecting portion between the support shaft 10 and the supporting roller 12.

Further, between the upper bracket 3 and the slider 2,
When the slider 2 moves to the upper end portion of the rail 1, the slider 2 is pressed in the lateral direction of the rail 1 (leftward in FIG. 1) to bring the slider 2 into a desired posture, and thus a window glass is desired. The holding mechanism 13 is provided to bring about the posture.

That is, as shown in FIG. 3, on the other side portion (left side portion) of the upper bracket 3, rotary shafts 130 and 131 are respectively provided upright at two locations separated from the rail 1 by substantially the same distance. The rotating shafts 130 and 131 have rotating arms (displacement members) 132 and 133, respectively.
Are rotatably attached. Pivoting arm 132
A roller 134 is rotatably attached to the upper end of the. In this case, the roller 134 is attached with its axis oriented in the same direction as the axis of the rotary shaft 130, so that the axis of the roller 134 is relative to the longitudinal direction of the rail 1 and its lateral direction (left-right direction). And are oriented in a perpendicular direction. A roller 135 is also rotatably attached to the lower end of the rotating arm 133 in the same manner. The distance from the roller 135 to the rotary shaft 131 is set to be the same as the distance from the roller 134 to the shaft 130.

A spring support shaft 136 is erected on the left side of the bracket 3 at a position located between the rotating shafts 130 and 131.
A coil spring 137 is mounted on the outer circumference of the spring support shaft 136. One end of the coil spring 137 urges the lower end of the rotating arm 132 toward the rail 1 and presses the side of the rail 1 into contact therewith. In this case, the distance from the point of action of the coil spring 137 to the rotating shaft 132 to the rotating shaft 130 is such that the urging force of the coil spring 137 can be transmitted to the roller 134 as a larger force. Has been made longer than the distance to 134. Similarly, coil spring
The other end of 137 presses the upper end of the rotating arm 133 against the side of the rail 1.

The rollers 134 and 135 are separated from the rail 1 by the same distance when the lower end of the rotating arm 132 and the upper end of the rotating arm 133 are in contact with the sides of the rail 1.

On the other hand, a contact plate portion (pressing member) 138 is formed on the left side portion of the slider 2 so as to project from the front side toward the back side and extend along the longitudinal direction of the rail 1. The contact plate portion 138 is formed so as to contact the rollers 134 and 135 and move them in the direction of approaching the rail 1, and as a result, the coil spring 137 presses the slider 2 to the left via the rollers 134 and 135. The distance from the contact plate portion 138 to the rail 1 is shorter than the distance from the rollers 134 (135) to the rail 1. Therefore, when the slider 2 moves upward, the contact plate portion 138 moves the roller 135 (13
It will come into contact with the outer circumference of 4).

Further, a guide portion 139 is formed at the upper end of the contact plate portion 138 so as to be separated from the rail 1 as it goes upward so that the contact plate portion 138 and the rollers 135 and 134 can smoothly start contact with each other. In this case, the guide portion 139 gradually increases in inclination degree as it goes upward.

In the window regulator C having the above configuration, when closing the window glass, the wire 7 is driven to move the slider 2 upward. When the slider 2 reaches the upper end of the rail 1, the contact plate portion 138 contacts the rollers 135 and 134 in this order,
And move them so that they approach the rail 1. As a result, the slider 2 is moved to the roller 13 by the coil spring 137.
It is pressed in a direction (side direction) away from the rail 1 via 4,135. Therefore, the posture of the slider 2 can be set to a desired posture, and thus the window glass can be set to a desired posture.

Further, since the axes of the rollers 134 and 135 are oriented in the direction orthogonal to the longitudinal direction and the lateral direction of the rail 1, the contact plate portion 138 comes into contact with the outer circumferences of the rollers 134 and 135, and they make rolling contact. Therefore, the frictional resistance between the contact plate portion 138 and the rollers 134 and 135 can be reduced, and the force required to drive the slider 2 is applied to the contact plate portion 138.
It is possible to make almost no change before and after the contact between the roller and the rollers 134 and 135. In particular, in this embodiment, a guide portion 139 is formed at the upper end of the contact plate portion 138, and the guide portion 139 allows the rollers 134 and 135 to move when the slider 2 moves upward.
Is gradually moved, even if there is a slight change in the driving force, the change is gradually made. Therefore, the operator hardly notices the change in the driving force, and when driving with a motor or the like,
It is possible to prevent the moving speed of the window glass from changing suddenly.

In the above embodiment, the rotating arms 132 and 133, the rollers 134 and 135, and the coil spring 137 are provided on the upper bracket 3 and the contact plate portion 138 is provided on the slider 2. However, conversely, the rotating arms 132 and 133 are provided. The rollers 134 and 135 and the coil spring 137 may be provided on the slider 2, and the contact plate portion 138 may be provided on the upper bracket 3. Further, although the contact plate portion 138 is pressed in the direction away from the rail 1, it may be pressed in the direction approaching the rail 1. Furthermore, although the contact member 138 as a pressing member is formed integrally with the slider 2, another member may be fixed to the slider 2.

Further, although the rotating arms 132 and 133 which are rotationally displaced as the displacement members are provided, members which are linearly displaced toward and away from the rail 1 may be provided.

Further, another elastic member may be used instead of the coil spring 137.

[Advantage of Invention] As described above, according to the window regulator of the present invention, the slider is pressed in the lateral direction of the rail via the roller, so that the attitude of the window glass can be set to a desired attitude. Of course, the effect that the driving force required for the vertical movement of the slider can be prevented from largely changing during the movement of the slider can be obtained.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention. FIG. 1 is a partially omitted front view and FIG. 2 is II of FIG.
-II An enlarged sectional view taken along the arrow, FIG. 3 is an enlarged front view of the main part, and FIG.
FIG. 5 is a front view showing the relationship between a door, a window regulator and a window glass, and FIG. 5 is a sectional view showing a conventional window regulator. 1 ... Rail, 2 ... Slider, 13 ... Holding mechanism, 132,
133 …… Rotating arm (displacement member), 134,135 …… Roller, 137
... Coil spring (elastic member), 138 ... Contact plate (pressing member).

Claims (1)

[Scope of utility model registration request] 1. A rail disposed with its longitudinal direction oriented substantially up and down, a slider movably mounted on the rail in the longitudinal direction and to which a window glass is attached, and between the slider and the rail. And a pressing mechanism for pressing the slider toward the side of the rail when the slider is moved to the upper end of the rail, in the window regulator, the pressing mechanism includes the following (a) and (b). , (C) and (d) are included in the window regulator. (A) A displacement member provided on either one of the rail and the slider so as to be displaceable in the lateral direction of the rail. (B) An elastic member that biases the displacement member in the lateral direction of the rail. (C) A roller provided on the displacing member so that the axis thereof is rotatable in a direction orthogonal to the longitudinal direction of the rail and the lateral direction thereof. (D) A pressing member which is provided on the other of the rail and the slide, contacts the outer peripheral surface of the roller, and moves the roller in a direction opposite to the urging direction of the elastic member.