JP2015067960A - Wire type window regulator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lightweight wire type window regulator excellent in installation workability, hardly causing looseness in rotation and lifting in the longitudinal direction of window glass, and capable of smoothly opening and closing the window glass.SOLUTION: The wire type window regulator comprises a guide rail 10 arranged along the lifting direction of the window glass, a slider (also serving as a rear carrier 26) slidably fitted to the inside of the guide rail 10 and a wire 8 arranged inside the guide rail 10, installed in the rear carrier 26 and retreating by rotating a drum, and a lower end part of the window glass is installed in the rear carrier 26 within a range of a longitudinal width of the guide rail 10.

Description

  The present invention relates to a wire type window regulator that guides a carrier supporting a window glass with a guide rail.

Conventionally, various wire-type window regulators have been known in which a wire is wound around a drum and a wire guide, the drum is driven to reciprocate the wire, a carrier that supports the window glass is attached to the wire, and the window glass is moved up and down. It has been.
The window regulator of Patent Document 1 is configured such that a carrier plate (carrier) is guided by a guide rail, and is moved up and down by a cable (wire) that is wound around the drum and the wire guide.
However, the window regulator described in Patent Document 1 has a glass holding portion projecting forward from the guide rail on the carrier plate, and glass is attached thereto, and the carrier plate slides on the guide rail. There is a distance in the front-rear direction to the place where the glass is supported. Further, the wires are routed in parallel away from the guide rails, and the positions where the wires are also attached to the carrier plate are separated from the positions where the guide rails slide. In either case, a moment for rotating the carrier plate about the sliding portion of the guide rail acts on the carrier plate. For this reason, a large load is applied to the carrier plate when raising and lowering the glass, and the window glass tends to roll in the front-rear direction, causing a shift between the direction of the sash that guides the window glass and the movement direction of the glass. Has the disadvantage of becoming unstable. In addition, since the carrier plate hits only one side of the guide rail, rattling is likely to occur when the carrier plate is raised and lowered.

In the window regulator of Patent Document 2, a glass holder is attached to a lower end portion of a window glass, while a carrier plate is attached to a slider slidably fitted in a guide rail having a groove section, and the glass is attached to the carrier plate. The holder is fixed. A wire stretched outside the guide rail is attached to the carrier plate.
The window regulator has a structure in which the window glass is supported by a carrier plate, and the carrier plate is attached to a slider and guided by a guide rail. For this reason, not only the weight of the window regulator increases, but also the assembly work is complicated. Further, since the carrier plate projects greatly on both sides of the guide rail and is connected to the glass holder at the tip thereof, the window glass easily rotates in the front-rear direction.

Japanese Patent No. 4365585 JP 2004-60372 A

  The problem to be solved by the present invention is that the window glass is less likely to be rotated in the front-rear direction or to be raised or lowered, and can be opened and closed smoothly, and is a lightweight wire that is easy to assemble. An object is to provide a window regulator.

It is a wire type window regulator, and includes a guide rail and a slider.
The guide rail has a slit extending in the longitudinal direction on one surface of a channel material having a polygonal cross section including a quadrangle, and is arranged in parallel with the surface of the glass guide of the automobile door.
The slider is slidably fitted to the guide rail, and an attachment hole is provided in a portion exposed to the slit. A glass holder fixed to the lower end of the window glass is attached to the mounting hole.
Then, the end portion of the closing side wire and the end portion of the opening side wire are directly connected to the slider, and the slider is also used as a carrier. The closed side wire is a wire part on the side that pulls up the carrier by being pulled by the drum and moves the window glass in the closing direction when viewed from the center of the carrier, and the open side wire is the opposite, It is a wire portion on the side where the carrier is pulled down by being pulled by the drum and the window glass is moved in the opening direction.
In order to facilitate the attachment of the glass holder, the slider may have a portion protruding slightly from the slit of the guide rail to the outside, and an attachment hole for attaching the glass holder may be formed in the protruding portion.
The slider may have a structure that is in contact with the inner wall of the guide rail at an elastic portion and absorbs play at the time of sliding.

  Since the glass holder is directly attached to the slider that is slidably fitted to the guide rail by using the carrier, the support point of the window glass by the carrier and the rising / lowering reference line of the window glass by the guide rail almost coincide with each other. The generation of moment due to the distance between the support point and the elevation reference line is small, and the elevation of the window glass is smooth. Further, the slider does not hit the guide rail and the guide rail or slider is not worn out at an early stage.

Since the closing side wire and the opening side wire are directly attached to the slider, the guide rail ascending / descending reference line and the point of attraction of the wire are close to each other. It is possible to prevent the slider from being worn out early.
Since the glass holder can be directly attached to the carrier / slider, the number of parts and fastening points are reduced, and the labor required for the attachment work is reduced. Further, the entire apparatus is reduced in weight.

It is the front view which showed the door for motor vehicles concerning the example of the present invention transparently from the outside. It is a front view of the window regulator which concerns on the Example of this invention. It is a principal part enlarged front view of the window regulator which concerns on the Example of this invention. It is a principal part longitudinal cross-sectional view of the guide rail and rear carrier which concern on the Example of this invention. It is AA sectional drawing of FIG. It is a side view of the back carrier and wire which concern on the Example of this invention. It is a principal part disassembled perspective view of the window glass which concerns on the Example of this invention, a rear carrier, and a guide rail.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1, an automobile door according to the present invention includes a window glass 1, a door frame 2, a door panel 3, and a window regulator.
The door frame 2 includes a front frame 4, a rear frame 5, and an upper frame 6 that connects these upper ends.
The door panel 3 includes an outer panel (not shown) that forms a panel space S and an inner panel 7, and the lower portions of the front frame 4 and the rear frame 5 are fixed between the outer panel and the inner panel 7. A portion surrounded by the front frame 4, the rear frame 5, and the upper frame 6 is a window W above the panel space S.

The window glass 1 has a front edge guided by a front frame 4 (glass guide) and a rear edge guided by a rear frame 5 (glass guide) so as to be movable in the vertical direction. Moreover, the lower end front part of the window glass 1 is supported by the front carrier 25, and the lower end rear part of the window glass 1 is supported by the rear carrier 26 (described later).
As shown in FIG. 2, the window regulator that raises and lowers the window glass 1 includes a wire 8, a drum driving device 9, wire guides a to e that engage the wire 8 and turn its direction, the front frame 4, and The guide rail 10 is used. The wire guides a, b, d, and e are rotatable wire guides such as pulleys, and the wire guide c is a member that has a curved surface that guides the wire 8 and is fixedly attached.
The drum drive device 9 has a drum 11 and a motor 12 around which a wire 8 is wound. By rotating the drum 11 with the motor 12, the drum 8 is wound on one end side and rewinded on the other end side. is there.

The front frame 4 has a U-shaped cross section with an opening at the rear, and the front edge of the window glass 1 is inserted so as to be movable up and down.
A wire guide bracket 13 is attached to a lower end portion of the front frame 4 of the panel space S, and a wire guide a and a wire guide b are attached to a rear portion and a front portion of the outdoor surface of the wire guide bracket 13. The wire guide a and the wire guide b are attached so as to be slightly shifted inward and outward so that the path of the wire 8 engaged therewith does not collide.
A wire guide c is attached to the middle portion of the front frame 4. The upper surface of the wire guide c is a curved surface.
The lower end portion of the front frame 4 is fixed to the inner panel 7 of the door panel 3 via the wire guide bracket 13.

The rear guide rail 10 is paired with the front frame 4 and is erected in the panel space S along the ascending / descending direction of the window glass 1.
A wire guide bracket 16 is fixed to the upper end portion of the guide rail 10, and a wire guide d is attached to the outdoor side surface of the wire guide bracket 16.
A wire guide bracket 18 is fixed to the lower end portion of the guide rail 10, and a wire guide e is attached to the rear portion of the outdoor surface of the wire guide bracket 18. In addition, the drum 11 and the motor 12 are attached to the front upper portion of the outdoor surface of the wire guide bracket 18.
Then, by fixing the wire guide brackets 16 and 18 to the inner panel 7 of the door panel 3, the guide rail 10 is attached in the panel space S in parallel with the rear frame 5 (glass guide).

In this embodiment, the guide rail 10 is composed of a channel material having a rectangular cross section (FIG. 7). A slit 14 is formed over the entire length of the center of the front and rear width of the outdoor side surface, and tips are formed on both sides of the slit 14. It has a groove-shaped cross section provided with a pair of opposed lip portions 14 '.
As shown in FIGS. 3 to 5, a rear carrier 26 (a carrier combined slider) is slidably fitted inside the guide rail 10.
The rear carrier 26 has a rectangular cross section and has approximately the same longitudinal dimension as the inner width of the guide rail 10. In this embodiment, a protrusion 27 that slightly protrudes through the slit 14 of the guide rail 10 is formed on the outer surface of the rear carrier 26, and a window glass fixing hole 28 is provided at the center in the front-rear direction of the protrusion 27. Yes. The window glass fixing hole 28 is positioned within the range of the front and rear width of the guide rail 10 (in the present embodiment, the center portion of the front and rear width).

On the front side surface 29 and the rear side surface 30 of the rear carrier 26 (FIG. 7), in order to reduce the frictional force with respect to the guide rail 10, convexly curved protrusions are formed in the upper and lower parts and the intermediate part, respectively. The protrusions formed on the upper and lower portions of the rear side surface 30 are spring-like protrusions 31 (elastic portions) that are hollow so as to increase elasticity. The spring-like protrusion 31 may be a curved fin-like piece instead of a hollow protrusion.
As shown in FIG. 6, two locking grooves 33 for locking the ends of the wires 8 are arranged in parallel on the front side surface 29 of the rear carrier 26. In addition, a locking recess 32 that locks the large-diameter retaining portion 15 formed at the end of the wire 8 is continuously formed at the upper end of one locking groove 33 and the lower end of the other locking groove 33. Is formed.

Then, as shown in FIG. 6, by closing the large diameter portion 15 in the locking recess 32 and engaging the end of the wire 8 in the locking groove 33, the closing side wire 8b and the opening side wire 8c are engaged. (Described later) is directly connected to the rear carrier 26. These wires 8c and 8b are connected via a rear carrier 26.
The window glass 1 overlaps the protrusion 27 of the rear carrier 26 with the glass holder 34 attached to the lower end of the window glass 1, and inserts the fixture 35 a into the through hole 35 and the window glass fixing hole 28 of the glass holder 34, The window glass 1 is attached to the rear carrier 26. Since the window glass fixing hole 28 is located within the range of the front-rear width of the guide rail 10, the window glass 1 is attached to the rear carrier 26 within the range of the front-rear width of the guide rail 10.

The wire 8 is composed of wire portions 8a, 8b, and 8c (FIG. 2).
One end of the wire portion 8 a engages with the front carrier 25, extends downward from the front carrier 25, engages with the lower surface of the wire guide a, and reaches the drum 11, and the other end is on the outer peripheral surface of the drum 11. Engage.
One end of the wire portion 8 b engages with the outer peripheral surface of the drum 11, extends from the drum 11, and is turned downward by the rear upper wire guide d, passes through the inside of the guide rail 10, and reaches the rear carrier 26. . The large diameter portion 15 formed at the other end of the wire portion 8b engages with a locking recess 32 below the rear carrier 26, and the wire portion 8b is fitted into a locking groove 33 continuous with the locking recess 32. Installed.

The large diameter portion 15 formed at one end of the wire portion 8c engages with a locking recess 32 above the rear carrier 26, and is fitted into a locking groove 33 continuous with the locking recess 32. . Next, the wire portion 8c passes through the inside of the guide rail 10 to the lower wire guide e, further reaches the front lower wire guide b from the wire guide e, and is turned upward by the wire guide b before the front frame 4. To the wire guide c in the upper front part. The wire portion 8c engaged with the upper surface of the wire guide c returns to the front carrier 25 again through the outside of the front frame 4.
When viewed from the rear carrier 26, the wire portion 8b is a closed wire that closes the window when pulled, and the wire portion 8c is an open wire that opens the window when pulled.
When the motor 12 is driven and the drum 11 is rotated, the wire 8 between the wire guide c and the wire guide a and the wire 8 between the wire guide d and the wire guide e move in the same direction, so that the front carrier 25 and the rear carrier 26 moves up and down simultaneously, and the window glass 1 opens and closes.

At this time, since the window glass 1 is attached to the rear carrier 26 within the range of the front and rear width of the guide rail 10, the moment due to the distance between the support point of the window glass and the lifting reference line by the guide rail is reduced. There is little occurrence, almost no rotational moment is applied to the rear carrier 26, the window glass 1 is prevented from rolling in the front-rear direction, and the window glass 1 moves up and down a stable path.
Further, the rear carrier 26 has protrusions formed on the front side surface 29 and the rear side surface 30 in contact with the inner side surface of the guide rail 10 so that rotation in the front-rear direction is suppressed. 10 is elastically brought into contact with the inner surface of 10 to absorb backlash of the rear carrier 26, so that the window glass 1 moves up and down smoothly.
Since the closing side wire 8b and the opening side wire 8c are directly attached to the slider also serving as the carrier (rear carrier 26), the lifting reference line of the guide rail 10 and the point of action of the attractive force by the wire are close to each other. Ascending and descending is smooth and the same effect as described above is obtained.
Since the glass holder 34 is directly attached to the rear carrier 26, the number of parts is reduced and the time and effort of assembly are reduced.

The structure of the wire type window regulator according to the present invention is not limited to the above embodiment.
The cross-sectional shape of the guide rail 10 may be a polygon other than a quadrangle.
The protrusion 27 of the slider also serving as the carrier (rear carrier 26) is not essential. Conversely, a protrusion can be formed from the glass holder 34 side.
The connection structure of the closing side wire 8b and the opening side wire 8c to the slider also serving as the carrier (rear carrier 26) can be variously assumed such as being set at the center in the width direction in addition to being provided at a position close to one side of the guide rail 10. .

DESCRIPTION OF SYMBOLS 1 Window glass 2 Door frame 3 Door panel 4 Front frame 5 Rear frame 6 Upper frame 7 Inner panel 8 Wire 8a Wire part 8b Wire part (closed side wire)
8c Wire part (open side wire)
DESCRIPTION OF SYMBOLS 9 Drum drive device 10 Guide rail 11 Drum 12 Motor 13 Wire guide bracket 14 Slit 14 'Lip part 15 Diameter large part 16 Wire guide bracket 18 Wire guide bracket 25 Front carrier 26 Rear carrier 27 Protrusion part 28 Window glass fixing hole 29 Front side surface 30 Rear side 31 Spring-like projection 32 Locking recess 33 Locking groove 34 Glass holder 35 Through hole 35a Fixing tool a to wire guide S Panel space W Window

Claims (6)

A wire type window regulator,
With guide rails and sliders,
The guide rail has a slit extending in the longitudinal direction on one surface of the channel material having a polygonal cross section,
The slider is slidably fitted to the guide rail, and has a mounting hole for attaching a glass holder fixed to a lower end of the window glass in a portion exposed to the slit,
The end of the closing side wire and the end of the opening side wire are directly connected to the slider.
This is a wire type window regulator.   The wire-type window regulator according to claim 1, wherein the guide rail has a slit extending in a longitudinal direction on one surface of a channel member having a square section.   The wire type window regulator according to claim 1 or 2, wherein the slider has a portion that slightly protrudes outward from the slit of the guide rail, and a mounting hole for attaching the glass holder is formed in the protruding portion. .   The closing side wire and the opening side wire enter the inside of the guide rail from the end opening of the guide rail, and are routed on the same side of the guide rail. Wire-type window regulator as described.   5. The wire according to claim 4, wherein the closing side wire and the opening side wire are disposed along the same side surface of the slider, and are attached to the slider by engaging an end portion with the side surface. Type window regulator.   The wire-type window regulator according to any one of claims 1 to 5, wherein the slider is in contact with an inner wall of the guide rail at an elastic portion and absorbs play at the time of sliding.

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