JP2007297911A - Window regulator and driving device therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a driving device for a cable type window regulator, which can be easily mounted on a door panel. <P>SOLUTION: The window regulator 10 to be mounted on a door panel P of a door D comprises four pulleys 11, an inner cable 12 laid over the pulleys, a carrier plate 13 fixed to the inner cable and supporting a window glass 14, and the driving device reciprocating the inner cable. In the window regulator 10, a guide member for supporting the moving trace of the carrier plate is not used, and the window glass 14 is guided by a window glass run R of the door D. Only the pulleys 11 and the driving device 15 of the window regulator 10 are fixed to the door panel P. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a cable type window regulator and a drive device for the window regulator.

  2. Description of the Related Art Conventionally, a window regulator is known as a device that drives a window glass of an automobile up and down. As this window regulator, there are a cable type window regulator that drives a cable arranged in a closed loop by a cable guide, and an X arm type window regulator using a link.

The cable type window regulator can be manufactured lighter and at a lower cost than the X arm type window regulator. However, on the other hand, since the shape as a window regulator is formed only after fixing the cable guide for guiding the cable, the management and assembly of each part becomes complicated.
Moreover, it is necessary to give tension to the cable routed in a closed loop shape, and its installation is difficult.

  An object of the present invention is to provide a cable type window regulator that can be easily attached to a door panel and a drive device for the window regulator.

  The window regulator according to the present invention includes a cable guide provided in a rectangular shape, an inner cable arranged in an eight shape so as to directly connect the upper and lower cable guides between the cable guides, and the inner cable. It consists of a carrier plate that is fixed and supported by the window glass run, and a drive device that drives the inner cable, and does not include a member that guides the carrier plate. It is characterized by being supported. Such a window regulator is preferable in which only the cable guide and the driving device are fixed to the door panel.

  A drive device for a window regulator according to the present invention includes a motor unit that reciprocates an inner cable, and a drum unit that winds and feeds the inner cable connected to the motor unit. The drum unit is a cylindrical drum body. And a housing that covers it, and a cable tension adjuster that adjusts the extension of the inner cable attached to the housing, and the cable tension adjuster includes a spring body that extends so that both ends face in opposite directions And a guide having a cable groove attached to the tip thereof.

The window regulator according to the present invention includes a cable guide provided in a rectangular shape, an inner cable arranged in an eight shape so as to directly connect the upper and lower cable guides between the cable guides, and the inner cable. It consists of a carrier plate that is fixed and supported by the window glass run, and a drive device that drives the inner cable, and does not include a member that guides the carrier plate. Since it is supported, it is possible to reduce the weight with the minimum necessary parts and to move it up and down stably.
In such a window regulator, when only the cable guide and the driving device are fixed to the door panel, the mounting structure is simple.

  A drive device for a window regulator according to the present invention includes a motor unit that reciprocates an inner cable, and a drum unit that winds and feeds the inner cable connected to the motor unit. The drum unit is a cylindrical drum body. And a housing that covers it, and a cable tension adjuster that adjusts the extension of the inner cable attached to the housing, and the cable tension adjuster includes a spring body that extends so that both ends face in opposite directions The guide is provided with a cable groove attached to the tip thereof, so that the inner cable is guided from the guide, wound around the drum body, sent out from the guide, and routed toward the cable guide. Thereby, even if the spring body is contracted so that both ends of the spring body have acute angles and the cable tension is loosened, the spring body can absorb the looseness and keep the cable tension constant.

  A window regulator 10 shown in FIG. 1 is attached to a door panel P of a door D, and includes four pulleys 11, an inner cable 12 routed in the pulleys, and a window glass 14 fixed to the inner cable. And a driving device 15 that reciprocally drives the inner cable. The window regulator 10 does not use a guide member that supports the movement trajectory of the carrier plate, and the window glass 14 is guided by the window glass run R of the door D. Further, in the window regulator 10, only the pulley 11 and the driving device 15 are fixed to the door panel P.

  As shown in FIG. 2a, the four pulleys 11 include a cylindrical pulley shaft 16 having a center hole 16a formed with a female screw, a cylindrical pulley body 17 having a groove 17a disposed on the outer periphery thereof, A U-shaped pulley bracket 18 covering the pulley shaft and the pulley body, and a bolt 19 formed with a male screw inserted into the central hole 16a of the pulley shaft via the door panel P. A flange 16b is formed at the end of the pulley shaft 16 on the bolt mounting side, and the other end of the pulley shaft 16 is fastened to the pulley bracket 18. Thus, the pulley body 17 is held so as to be rotatable with respect to the pulley shaft 16 and not to come off the pulley shaft 16. The pulley 11 is attached to a convex portion 20 formed on the door panel P. Thus, by attaching the pulley 11 to the convex part 20 of the door panel P, the vertical movement space of the carrier plate 13 connected via the pulley 11 and the cable 12 is secured. Further, the pulley bracket 18 prevents the cable from coming out of the groove 17 a of the pulley body 17.

A communication hole 18b concentric with the center hole 16a of the pulley shaft is formed in the bottom 18a of the pulley bracket. Then, the bolt 19 is inserted into the center hole 16a through the communication hole 18b of the pulley bracket and the mounting hole 21 of the door panel so that the opening of the pulley bracket 18 and the mounting hole 21 of the door panel P are aligned. The pulley 11 is attached to the door panel P. Further, a claw 18c that engages with the door panel P is formed in a part of the opening of the pulley bracket 18, and when the claw 18c is engaged with the door panel, the pulley shaft 16 rotates together by screwing of the bolt 19. To prevent.
The pulley is made of a synthetic resin such as polyacetal (POM), but a metal such as stainless steel, aluminum (Al), or zinc (Zn) may be used.

  As shown in FIG. 2 b, the carrier plate 13 is fixed to the substrate 26, the cable locking portion 27 provided at the center of the surface of the substrate, and the lower end of the window glass 14 formed at the end of the substrate 26. The window glass holder 28 is connected to the window glass holder 28 formed. Further, recesses may be formed on the front and back of the substrate 26. Such a carrier plate 13 is formed of a synthetic resin such as polybutylene terephthalate (PBT) or polyacetal (POM). However, it may be made of a metal such as hot dip galvanized steel sheet (SGCC) or aluminum (Al). In the present embodiment, the cable locking portion 27 is provided with a compression coil spring C, and has a function of adjusting the tension of the inner cable.

Returning to FIG. 1, the inner cable 12 is routed in an 8-character shape so as to directly connect the upper and lower pulleys 11 among the four pulleys 11 arranged in a square shape. As such an inner cable, an inner cable in which the outer casing of the control cable is omitted is used for weight reduction and cost reduction. In this case, a synthetic resin coat is provided on the inner cable in order to prevent damage due to contact during assembly to the door panel.
By providing the coat in this way, it is possible to protect the inner cable from contact with the outer parts and to eliminate grease, so that the grease to the pulley 11, the carrier plate 13, the driving device 15, the door panel and the door inner parts is eliminated. Can be prevented.

  The driving device 15 includes a motor unit including a motor and a drum unit including a drum. The driving device 15 includes three fixing portions 15a protruding in the radial direction, and the fixing unit 15a is fixed so that the door panel P is sandwiched between the motor unit and the drum unit. That is, the motor of the driving device 15 is configured such that it can be attached separately after the window regulator is attached to the door panel. Thereby, the thickness of the drive device can be reduced during assembly, and the window regulator 10 can be inserted and attached from the opening of the beltline B of the door. The insertion is easy, and the opening dimension of the beltline B of the door Can be minimized.

  Since the window regulator 10 minimizes the parts necessary for raising and lowering the window glass, the window regulator 10 can be reduced in weight and the cost of the window regulator can be reduced. Moreover, the attachment part to the door panel P is made into seven places of the pulley shaft 16 of the cable guide mentioned above and the fixing | fixed part 15a of a drive device, and simplification of an attachment process is possible.

  3 includes a drum unit 31 and a motor unit 32. The drum unit 31 includes a drum body 33, a housing 34 that covers the drum body, and cable tension that adjusts the extension of a cable attached to the housing. An adjustment tool 35 and a cover 36 attached to the housing 34 and covering the drum body 33 and the cable tension adjustment tool 35 are provided. The motor unit 32 may be a conventionally known one.

The drum body 33 has a cylindrical shape having a center hole 37, and a cable groove 38 is formed on the outer periphery.
The housing 34 includes a housing main body 39 that covers the drum main body 33, leg portions 41 that protrude in three directions, left and right, and lower, and a head portion 42 that protrudes upward. An attachment hole 43 is formed at the distal end of the leg portion 41, and an engaging portion 44 is formed at the distal end of the head portion 42. The leg portion 41 is an attachment portion that connects the drum unit 31 and the motor unit 32 and attaches the entire drive device to the door panel P. The head portion 42 is an engaging portion to which a cable tension adjusting tool 35 described later is attached. In addition, an opening 45 is provided between the head 42 and the left and right legs 41 so as to allow the cable to rotate when adjusting the cable tension.

  The cable tension adjuster 35 includes a spring body 46 and a guide 47 attached to the tip thereof. The spring body 46 includes a coil portion 48 that is rotatably attached to the head portion 42, and an arm portion 49 that extends so that both ends thereof face in opposite directions. A groove 52 is formed in the guide 47, thereby engaging with the cable of the window regulator.

  With this configuration, the inner cable 53 of the window regulator passes through one guide 51 and enters the cable groove 38 (above or below the cable groove 38) of the drum body 33, and the cable groove 38 (the cable groove 38). From the bottom or top) to the cable guide through the other guide 51. At this time, the spring body 46 is bent (shrinks in the direction of the arrow in FIG. 3a) so that the guides 51 are not aligned, that is, the tip of the spring body to which the guides are attached forms an acute angle. By attaching to the door panel, even if the cable is extended, the spring body 46 absorbs the extension, and the tension of the cable can be kept constant.

  This drive device 30 can be used for a conventionally known window regulator and a window regulator that requires cable tension adjustment, for example, the window regulator 10 of FIG. 1, regardless of the window regulator of this embodiment.

It is a side view which shows one Embodiment of the window regulator of this invention. 2a is a sectional side view showing the pulley of the window regulator of FIG. 1, and FIG. 2b is a side view showing the carrier plate. 3a and 3b are a front view and a cross-sectional side view of the drive device of the present invention, respectively.

Explanation of symbols

B Door belt line D Door P Door panel R Glass run 10 Window regulator 11 Pulley 12 Inner cable 13 Carrier plate 14 Window glass 15 Drive device 15a Fixing part 16 Pulley shaft 16a Center hole 16b Flange 17 Pulley body 17a Groove 18 Pulley bracket 18a Bottom part 18b Communicating hole 18c Claw 19 Bolt 20 Protruding part 21 Mounting hole 26 Substrate 27 Cable locking part 28 Window glass holder 29 Window glass locking part 30 Drive unit 31 Drum unit 32 Motor unit 33 Drum body 34 Housing 35 Tension adjuster 36 Cover 37 Center hole 38 Cable groove 39 Housing body 41 Leg part 42 Head part 43 Mounting hole 44 Engagement part 45 Opening part 46 Spring body 47 Guide 48 Coil part 49 Arm part 1 the guide 52 groove 53 inner cable

Claims (3)

A cable guide provided in a rectangular shape, an inner cable arranged in an eight-shape so as to directly connect the upper and lower cable guides between the cable guides, and a window glass run fixed to the inner cable Consisting of a carrier plate that supports the window glass guided by and a drive device that drives the inner cable,
It does not have a member for guiding the carrier plate,
A window regulator attached to a door panel, where the window glass is supported by a window glass run. The window regulator according to claim 1, wherein only the cable guide and the driving device are fixed to the door panel. A motor unit that reciprocates the inner cable;
It consists of a drum unit that winds and sends out the inner cable connected to the motor unit.
The drum unit has a cylindrical drum body, a housing that covers the drum body, and a cable tension adjuster that adjusts the elongation of an inner cable attached to the housing.
The cable tension adjuster includes a spring body extending so that both ends thereof face in opposite directions, and a guide provided with a cable groove attached to the tip thereof.