JP2012077527A - Door glass lifting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a motor-driven door glass lifting device having a guide rail which is fixed to a door panel and slidably guides a slider to which a window glass is fixed; a drive part bracket which is fixed to one of upper and lower ends of the guide rail and a wire deviation member which is supported with the other end; a motor unit which is supported with the drive part bracket and a winding drum which is rotationally driven by the motor unit; and drive wire which is wound around the winding drum and one end of which is fixed to the slider through the wire deviation member and another end is directly fixed to the slider; which allows an arrangement position of the motor unit relative to the drive part bracket supporting the winding drum and the motor unit to be adjusted with a high degree of flexibility.SOLUTION: A door glass lifting device is provided with a drive part bracket having a motor fixing plate part with a hole, and a winding drum and a motor unit which are arranged on both sides across the motor fixing plate part with the hole.

Description

  The present invention relates to an apparatus for raising and lowering a door glass by an electric motor, and more particularly to a door glass raising and lowering apparatus of a type in which the electric drive mechanism is provided on either one of upper and lower ends (generally lower end) of a guide rail.

  In this type of door glass lifting device, a drive unit bracket that supports a motor unit and a take-up drum is fixed to a lower end portion of a guide rail that is fixed to a door panel in a vertical direction (window glass lifting direction). A slider with a window glass fixed is slidably supported on the guide rail, and one end of the drive wire wound around the take-up drum is directly fixed to the slider along the guide rail, and the other end Is folded back via a pulley at the upper end of the guide rail and fixed to the slider (Patent Document 1). Accordingly, when the winding drum is rotated forward and backward via the motor unit, the window glass moves up and down.

Japanese Patent No. 3332803

  The drive part bracket fixed to the lower end part of the guide rail has a winding drum support part and a motor unit fixing part (motor fixing part). In Patent Document 1, the winding drum support portion and the motor fixing portion are provided at different positions in the vertical direction. However, in the configuration of Patent Document 1 in which the motor fixing portion is arranged below the winding drum support portion, the degree of freedom in the arrangement position of the motor unit is poor. In particular, the motor unit has air vent holes, and the air vent holes are preferably directed downward as much as possible. In addition, since the winding position of the winding wire in the axial direction of the winding drum changes as the window glass moves up and down, the driving bracket is placed in various directions with respect to the extension plane of the guide rail. When force is applied, it tries to deflect (deform) from the extended plane of the guide rail. However, the conventional structure is not considered for the deformation of the drive bracket.

An object of the present invention is to obtain a motor-driven door glass elevating device that provides a high degree of freedom in the arrangement position of the motor unit with respect to the drive unit bracket that supports the winding drum and the motor unit based on the above awareness of the problem. To do.
In addition, the present invention uses the fact that the drive bracket fixed to the lower end of the guide rail is a member fixed to the door panel (inner panel) at the same time, thereby suppressing the deformation of the drive bracket due to the force of the drive wire. An object of the present invention is to obtain a door glass lifting device that can be used.

  The present invention relates to a guide rail fixed to a door panel and slidably guiding a slider to which a window glass is fixed; a drive bracket fixed to one of the upper and lower ends of the guide rail and the other end. A wire deflection member; a motor unit supported by the drive bracket; a winding drum driven to rotate by the motor unit; and one end of the winding drum wound around the winding drum to the slider via the wire deflection member A door glass elevating device having a driving wire fixed to the slider and having the other end directly fixed to the slider; provided with a perforated motor fixing plate portion on the driving portion bracket and sandwiching the perforated motor fixing plate portion on both sides thereof The winding drum and the motor unit are arranged.

  It is practical to form a plurality of motor fixing parts for fixing the motor unit and a plurality of panel fixing parts for fixing the driving part bracket to the door panel in the driving part bracket. And it is preferable to arrange | position these motor fixing | fixed parts and panel fixing | fixed parts so that the line segment which connects a panel fixing | fixed part may cross | intersect the line segment which connects a motor fixing | fixed part.

  Specifically, the fixed shaft of the motor unit and the driven shaft of the take-up drum are coupled via a drive connection hole formed in the perforated motor fixing plate portion.

  At least one of the plurality of fixing portions of the drum cover of the winding drum can be fastened and fixed together with at least one of the plurality of fixing portions of the motor unit to the perforated motor fixing plate portion.

  It is desirable that a stopper for restricting the moving end of the slider is integrally formed on the drive bracket.

  It is practical that the drive bracket is made of a press-molded product made of a metal material.

  The present invention relates to a door glass lifting and lowering device that supports a winding drum and a motor unit that drives the winding drum to a driving bracket that is fixed to an end portion of a guide rail. Since the winding drum and the motor unit are arranged on both sides of the perforated motor fixing plate portion, a high degree of freedom can be given to the arrangement position of the motor unit.

It is a side view which shows one Embodiment of the door glass raising / lowering apparatus by this invention. (A) and (B) are the perspective views of the assembly state and disassembly state which looked at the principal part of the door glass raising / lowering device from the vehicle inner side. (A) And (B) is the perspective view of the assembly state which looked at the principal part of the door glass raising / lowering device from the vehicle outer side, and a decomposition | disassembly state. (A), (B), and (C) are the front view, the left view, and the right view of a drive part bracket. (A), (B) and (C) are the perspective views which looked at the drive part bracket from another direction. It is a disassembled perspective view around the drive part bracket of the conventional door glass raising / lowering apparatus.

  FIG. 1 conceptually shows the overall structure of a door glass lifting apparatus according to the present invention. A guide rail 20 directed in the vertical direction is fixed in an internal space formed by the outer panel and the inner panel of the vehicle door 10. A slider (glass bracket) 21 is slidably engaged with the guide rail 20, and a window glass 22 is fixed to the slider 21. A pulley (wire deflection member, wire guide member) 23 is rotatably supported at the upper end portion of the guide rail 20, and a drive unit bracket 24 is fixed to the lower end portion. The driving unit bracket 24 supports a hoisting drum 25 and a motor unit 26 that rotationally drives the hoisting drum 25 in the forward and reverse directions. A driving wire 27 wound around the hoisting drum 25 has one end thereof. The portion is guided upward along the guide rail 20 and then folded back by the pulley 23 and fixed to the slider 21. The other end is guided upward along the guide rail 20 and directly fixed to the slider 21. Therefore, when the hoisting drum 25 is driven forward and backward via the motor unit 26, the slider 21 (window glass 22) moves up and down along the guide rail 20. This type of door glass lifting device is generally called a lower end drive type because the drive mechanism is located at the lower end of the guide rail 20, and is characterized by being small and having high unit properties. In this embodiment, the guide rail 20, the slider 21, and the pulley 23 are general (it is not necessary to be special).

  2 to 5 show the door glass lifting apparatus according to the present invention more specifically. The drive unit bracket 24 is made of a press-molded product made of a metal material, and a single unit shape thereof is shown in FIGS. The drive portion bracket 24 includes a planar welded portion 24a for welding to the lower end portion of the guide rail 20, and an offset portion 24b extending in a direction substantially perpendicular to the welded portion 24a and away from the extended plane of the guide rail 20. The perforated motor fixing plate 24c that extends downward from the tip of the offset portion 24b substantially parallel to the guide rail 20 again, and the extended plane of the welded portion 24a at the left and right locations from the perforated motor fixing plate 24c. A drum restricting leg 24d that extends beyond the door and a door panel fixing wall 24e that extends from the tip of the drum restricting leg 24d in a direction substantially parallel to the welded portion 24a. The perforated motor fixing plate portion 24c is provided with a drive connection hole 24f at the center thereof, and three motor fixing holes (motor fixing portions) 24g are provided around the drive connection hole 24f. ing. Each of the pair of door panel fixing walls 24e is provided with a panel fixing bolt insertion hole (panel fixing portion) 24h. A stopper protrusion 24s that restricts the descending end of the slider 21 is formed on a part of the upper surface of the offset portion 24b.

  The motor unit 26 is fixed to one surface (surface away from the welded portion 24a) of the perforated motor fixing plate portion 24c of the drive unit bracket 24 and driven to the other surface (surface close to the welded portion 24a). The hoisting drum 25 around which the wire 27 is wound is supported. The winding drum 25 is inserted into a portion surrounded by the perforated motor fixing plate portion 24c and the drum restricting leg portion 24d, and is covered with the drum cover 28 (FIGS. 2 and 3), and the perforated motor fixing plate. It is hold | maintained at the part 24c (drive part bracket 24). The drum cover 28 includes a bottomed cylindrical portion 28a that covers the hoisting drum 25 and fixed legs (fixed portions) 28b corresponding to two of the three motor fixing holes 24g on the holed motor fixing plate portion 24c. Have. Since the winding drum 25 has the offset portion 24b formed in the drive portion bracket 24, the center in the axial direction and the extended plane of the guide rail 20 are set at substantially the same position.

  The motor unit 26 located on the surface of the perforated motor fixing plate 24c opposite to the hoisting drum 25 is a non-circular drive shaft 26a (shown in the figure) that is driven forward and backward via a forward / reverse drive motor and a reduction gear mechanism. 2) and a circular fitting / fixing portion 26b (same as above) positioned around the non-circular driving shaft 26a, and the circular fitting / fixing portion 26b is fitted in the drive connecting hole 24f of the driving portion bracket 24. The non-circular drive shaft 26a engages with the non-circular driven portion 25a (see FIG. 3) of the hoisting drum 25. In the synthetic resin housing of the motor unit 26, three fixing seats (fixing portions) 26c (see FIG. 2) corresponding to the three motor fixing holes 24g of the drive unit bracket 24 are formed. These three fixing seats 26c are overlapped with the three motor fixing holes 24g, and the two fixing legs 28b of the drum cover 28 are overlapped with the two motor fixing holes 24g and fixed together with fixing bolts. .

  The two panel fixing bolt insertion holes 24h of the drive unit bracket 24 are for fixing the drive unit bracket 24 to the door panel (inner panel) 29 (FIG. 3). In the two panel fixing bolt insertion holes 24h, the line segment X (FIG. 4A) connecting the two panel fixing bolt insertion holes 24h connects the three motor fixing holes 24g on the drive bracket 24. It arrange | positions so that line segment Y (same) may cross | intersect.

  In the door glass lifting apparatus having the above-described configuration, the guide rail 20 is disposed on the vehicle door 10, the upper part thereof is fixed to the door panel (outer panel) via the fixing bracket 11 of FIG. 1, and the lower driving part bracket 24 is attached to the panel. It fixes to a door panel (inner panel) via the fixing bolt insertion hole 24h, and the window glass 22 set to the vehicle door is fixed to the slider 21. In this set state, one end portion of the drive wire 27 wound around the hoisting drum 25 is guided upward along the guide rail 20, and then folded back by the pulley 23 and fixed to the slider 21, while the other end portion is guided. If it guides upward along the rail 20 and it fixes to the slider 21 directly, a door glass raising / lowering apparatus will be completed. In this state, when the hoisting drum 25 is driven forward and backward via the motor unit 26, the slider 21 (window glass 22) moves up and down. The lower end of the slider 21 is regulated by a stopper 24 s that protrudes from a part of the offset portion 24 b of the drive bracket 24.

  The door glass elevating / lowering device having the above-described configuration can obtain the following basic effects and at the same time the following operational effects. First, the drive unit bracket 24 fixed to the lower end portion of the guide rail 20 has a perforated motor fixing plate portion 24c, the winding drum 25 is located on one surface, and the motor is mounted on the other surface. Unit 26 is located. And since the non-circular driven part 25a of the hoisting drum 25 and the non-circular driving shaft 26a of the motor unit 26 are coupled via the drive connecting hole 24f at the center of the perforated motor fixing plate part 24c. Thus, a complete freedom in the directionality of the motor unit 26 can be obtained. That is, since the motor unit 26 theoretically has an elevating mechanism regardless of where it is rotated around the drive connection hole 24f, a degree of freedom is obtained in the arrangement position of the motor unit 26, and an air vent hole of the motor unit 26 is obtained. Can be easily turned downward.

  Next, as shown in FIG. 4A, a line segment X connecting two panel fixing bolt insertion holes 24h that fix the drive unit bracket 24 to the door panel fixes the motor unit 26 on the drive unit bracket 24. It intersects the line segment Y connecting the three motor fixing holes 24g. For this reason, when the drive unit bracket 24 is deformed with respect to the guide rail 20 (extension plane thereof) by the tension applied to the drive wire 27 wound around the hoisting drum 25, the drive unit bracket 24 is substantially a panel. Since the door panel is integrated with the fixing bolt insertion hole 24h, the door panel opposes the deformation force.

  FIG. 6 depicts a similar drive unit bracket 24P of Patent Document 1. In the figure, a drive unit bracket 24P is a member corresponding to the drive unit bracket 24 of the present invention fixed to the lower end of the guide rail 20, and is fixed to the vehicle door panel through two panel fixing bolt insertion holes 24hP. Then, the motor unit is fixed on the three motor fixing holes 24gP. The winding drum arrangement space S is formed on the three motor fixing holes 24gP, and the line segment X ′ connecting the two panel fixing bolt insertion holes 24hP connects the three motor fixing holes 24gP. It does not intersect with line segment Y '. In this conventional configuration, since the motor unit is arranged below the hoisting drum, the degree of freedom in the arrangement position (orientation) of the motor unit is poor. Further, when a deformation force is applied to the drive unit bracket 24P via the drive wire wound around the hoisting drum, the drive unit bracket 24P is fixed to the door panel through the panel fixing bolt insertion hole 24hP. The door panel cannot be used as a deformation preventing member.

  In the above embodiment, the present invention is applied to a lower end drive type door glass lifting device that fixes a drive unit bracket to the lower end portion of the guide rail and supports a pulley (wire deflection member) on the upper end portion. The present invention can theoretically be applied to an upper end drive type door glass lifting device in which a motor bracket is fixed to the upper end portion of the guide rail and a pulley (wire deflection member) is supported on the lower end portion.

10 Vehicle door 11 Fixed bracket 20 Guide rail 21 Slider (glass bracket)
22 Window glass 23 Pulley (wire deflection member)
24 24P Drive portion bracket 24a Welded portion 24b Offset portion 24c Perforated motor fixing plate portion 24d Drum regulating leg portion 24e Door panel fixing wall 24f Drive connecting hole 24g 24gP Motor fixing hole (motor fixing portion)
24h 24hP Panel fixing bolt insertion hole (panel fixing part)
25 Winding drum 25a Non-circular driven part 26 Motor unit 26a Non-circular driving shaft 26b Circular fitting fixing part 26c Fixed seat (fixing part)
27 Driving wire 28 Drum cover 28a Bottomed cylindrical portion 28b Fixed leg (fixed portion)

Claims (5)

A guide rail fixed to the door panel and slidably guiding a slider to which the window glass is fixed;
A drive bracket fixed to one of the upper and lower ends of the guide rail and a wire deflection member supported by the other end;
A motor unit supported by the drive unit bracket; a winding drum that is rotationally driven by the motor unit; and a winding drum wound around the winding drum, one end of which is fixed to the slider via the wire deflection member, and the other end A drive wire fixed directly to the slider;
In a door glass lifting device having
The drive bracket is provided with a perforated motor fixing plate,
A door glass lifting device characterized in that the winding drum and the motor unit are disposed on both sides of the perforated motor fixing plate portion. 2. The door glass lifting apparatus according to claim 1, wherein the driving unit bracket includes a plurality of motor fixing units for fixing the motor unit and a plurality of panel fixing units for fixing the driving unit bracket to the door panel. And these motor fixing | fixed part and panel fixing | fixed part are door glass raising / lowering apparatuses arrange | positioned so that the line segment which connects a panel fixing | fixed part may cross | intersect the line segment which connects a motor fixing | fixed part. 3. The door glass lifting device according to claim 1, wherein at least one of the plurality of fixing portions of the drum cover of the winding drum is at least one of the plurality of fixing portions of the motor unit. Door glass lifting device that is fastened together with one. The door glass raising / lowering apparatus of any one of Claim 1 thru | or 3 WHEREIN: The stopper which regulates the moving end part of a slider is integrally formed in the said drive part bracket. The door glass raising / lowering apparatus of any one of Claim 1 thru | or 4 WHEREIN: The said drive part bracket is a door glass raising / lowering apparatus which consists of a press molding product of a metal material.