JP2009138414A - Glass lifting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a glass lifting device which is excellent in mounting efficiency, suitably operable over a long period of time, low in cost, and light in weight. <P>SOLUTION: According to the structure of the glass lifting device, a bracket 17 is connected to a window glass bearing portion 19 via an extension portion extending to the outside of an endless belt 11 having teeth on an internal surface thereof, by means of a fixing bolt 20, and a rotating direction for fastening the fixing bolt 20 is the same as a rotary moment direction acting on the fixing bolt 20 via the bracket 17 when a window glass 23 abuts on an upper frame 43 and the endless belt 11 is continuously rotated. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a glass lifting device that lifts and lowers a window glass of a vehicle.

  2. Description of the Related Art Conventionally, in a vehicle such as an automobile, a window regulator (glass lifting device) as a device for driving a window glass up and down is provided between an inner panel provided on the inside of a door and an outer panel provided on the outside. Yes.

  For example, there has been proposed a window regulator that includes window glass fastening portions that support window glass at two locations on the front and rear sides of a door, and that raises and lowers the window glass with crossed wires and a drum that drives the wires (Patent Document 1). reference).

  In addition, a window regulator that raises and lowers the window glass fixed to the carrier bracket by rotating the carrier wire guided in the up-and-down direction by the guide rail and fixed to the annular wire using the actuator. Has been proposed (see Patent Document 2).

JP 2006-348627 A Japanese Utility Model Publication No. 4-13783

  In the case of the window regulator disclosed in Patent Document 1, since there is a fastening portion of the window glass on the same axis as the wire of the elevating part, the wire becomes an obstacle when the window glass is attached, and it is difficult to fasten the window glass. Temporarily, if the fastening part of the window glass is shifted on the axis different from the wire of the raising and lowering part, and the fastening part of the window glass is provided and fastened with a bolt, the bolt may be loosened by repeated raising and lowering of the glass. is there. In addition, in recent years when needs for inexpensive and lightweight vehicle members are increasing, the number of parts is large, so that material costs are increased and heavy.

  In the case of the window regulator disclosed in Patent Document 2, since the carrier bracket is guided using a guide, the cost is increased, and two fastening points between the window glass and the bracket are required, so that time is required for mounting. .

  The present invention has been made in view of the above circumstances, and since the connecting portion between the first connecting member and the second connecting member and the moving direction of the belt are not coaxial, the mounting workability is excellent. The bolts connecting the connecting member and the second connecting member are not loosened, and the engagement between the belt and the second connecting member is stably maintained, so that it can operate suitably for a long time. An object of the present invention is to provide a glass lifting and lowering apparatus that is cheaper and lighter.

  In order to achieve the above object, the glass lifting device of the present invention includes a first connecting member fixed to one end of a window glass that can reciprocate in a first direction, and the first direction in a partial region. An endless belt provided with teeth formed on the inner surface thereof, a second connecting member fixed to the endless belt, and an operation or drive unit for moving the endless belt. The second connecting member extends to the outer surface side of the endless belt and is connected to the first connecting member by a bolt and a nut. The tightening rotation direction of the bolt and the nut is the window The glass is in contact with the window frame, and is in the same direction as the rotational moment acting on the bolt or the nut via the second connecting member when the endless belt continues to rotate. .

  Further, the second connecting member may be a resin bracket that is molded integrally with a part of the endless belt.

  The endless belt is hung between a pulley disposed above, a retainer disposed below, and a drive or manual rotation unit disposed in the middle. The reciprocation may be performed in the first direction in the region between the pulley and the retainer.

  As described above, according to the present invention, since the connecting portion between the first connecting member and the second connecting member and the moving direction of the belt are not coaxial, the mounting workability is excellent, and the first connecting member and the first connecting member The bolts that connect the two connecting members are not loosened, and the engagement between the belt and the second connecting member is kept stable, so that it can operate suitably for a long period of time, and is less expensive. A lightweight glass lifting device can be provided.

(Embodiment 1)
Hereinafter, embodiments of a glass lifting apparatus according to the present invention will be described with reference to the drawings. FIG. 1 is an overall view of a vehicle glass lifting device (hereinafter referred to as a window regulator) 3 attached to an inner panel 1 of a vehicle door (right). The window regulator 3 is placed on the surface of the inner panel 1 facing the outer panel (not shown).

  As shown in FIG. 2, the window regulator 3 according to the present embodiment mainly includes a belt 11, a pulley 13, a retainer 15, a carrier bracket (hereinafter referred to as a bracket) 17, and a vehicle glass support (hereinafter referred to as a window glass support). 19, composed of an actuator 21. Next, each component will be described in detail.

  The belt 11 is formed in an annular shape, and as shown in FIG. 3A, a plurality of tooth portions 111 that engage with teeth of the pulley 13 and the like are formed at regular intervals on the inner side (inner peripheral side). Since the tooth portion 111 is in contact with the actuator 21, the pulley 13, and the retainer 15, the tooth portion 111 is formed of a material that is more excellent in wear resistance than the back portion (outer peripheral side) 113. The belt 11 is integrally formed with the bracket 17 and resin.

  The pulley 13 is formed of a resin in a substantially cylindrical shape, and has side teeth that mesh with the teeth 111 of the belt 11. It has a shaft in the center, is attached to the inner panel 1, and rotates and slides as the belt 11 moves. In addition, it is installed at the upper end of the lifting part of the bracket 17.

  The retainer 15 is formed of resin, allows the belt 11 to pass therethrough, is positioned at the lower end of the lifting portion of the bracket 17, and guides the belt 11 together with the pulley 13 in the lifting direction of the bracket 17. A pulley may be installed instead of the retainer 15.

  As shown in FIGS. 3A and 3B, the bracket 17 is formed in a substantially L shape in the XY plan view. Further, as shown in FIG. 3A, the bracket 17 is screwed to the annular belt 11 by a window glass support portion 19, a fixing bolt 20, and a nut 201 on the outside. Thus, the window glass support portion 19 is fixed to the belt 11 at a position deviated in the X and Y directions in the drawing. By doing in this way, the installation operator can make screwing with the window glass support part 19 easy.

  As shown in FIGS. 3A and 3B, the window glass support portion 19 includes a lower portion 191 and an upper portion 193. The lower portion 191 is screwed by the bracket 17, the fixing bolt 20, and the nut 201. The nut 201 may be embedded in the lower portion 191 by insert molding or the like as shown in FIG. Moreover, you may provide the internal thread which fits the fixing bolt 20 in lower part 191 itself, without providing a nut. The upper part 193 is U-shaped in a YZ plan view and has a shape extending in the X direction. The lower end of the window glass (vehicle glass) 23 is press-fitted through a filler (not shown) made of rubber, sandwiched, and supported. . 3B, when the nut is a separate member, the fixing bolt 20 is first inserted into the bracket 17, and then the lower portion 191 and the next portion are arranged. The bracket 17, the lower portion 191, and the nut 201 are arranged in this order so as to be inserted into the nut 201. Also, as shown in FIG. 4B, when the nut 201 is insert-molded in the lower portion 191, the fixing bolt 20 is first inserted into the bracket 17 and then inserted into the lower portion 191, so that the bracket 17 And the lower portion 191 in this order.

  As shown in FIG. 2, the actuator 21 includes a motor 211 and a holder 212, and rotates the belt 11 by an output gear (not shown) in the holder. Since the detailed configuration of the actuator 21 is disclosed in, for example, Japanese Patent Application Laid-Open No. 2007-162349, detailed description thereof is omitted. Instead of the actuator 21, a manual rotation lever may be employed.

  Further, the window glass 23 is guided in the vertical direction by the side frame 41 shown in FIG. The window glass 23 is restricted from rising by the upper frame 43. Further, the window glass 23 (bracket 17) is restricted from descending by a stopper rubber 16 provided on the upper surface of the retainer 15.

  Next, attachment of the window regulator 3 will be described. As schematically shown in FIG. 5, the mounting hole 31 for the window regulator 3 is formed in the inner panel 1 in a shape that improves the workability (in the present embodiment, approximately 8-letter shape). The operator inserts his / her hand through the work hole 31 as necessary, and performs attachment work of each part of the window regulator 3, fine adjustment of the position, and the like. The attachment holes 33 and 35 for the pulley 13 and the retainer 15 are formed in the inner panel 1 in consideration of guiding the bracket 17 to the upper and lower ends of the window glass 23 in the ascending / descending direction. The mounting hole 37 for the actuator 21 is formed in the inner panel 1 so that three places of the holder 212 can be fixed. Through the mounting hole 31, the belt 11, the pulley 13, the retainer 15, the bracket 17, the window glass support portion 19, and the actuator 21 are inserted between the inner panel 1 and an outer panel (not shown). Next, the pulley 13, the retainer 15, and the holder 212 are fixed to mounting holes 33, 35, and 37 provided in the inner panel, respectively.

  Next, the operation of the window regulator 3 will be described. FIG. 6 shows a schematic diagram when the window glass 23 is lowered. When the actuator 21 rotates the belt 11 clockwise, the bracket 17 fixed to the belt 11 is interlocked, and the window glass support portion 19 screwed to the bracket 17 is interlocked to be sandwiched between the window glass support portions 19. The worn window glass 23 is lowered. FIG. 7 shows a schematic diagram when the window glass 23 is raised. When the actuator 21 rotates the belt 11 counterclockwise, the bracket 17 fixed to the belt 11 is interlocked, and the window glass support portion 19 screwed to the bracket 17 is interlocked. The sandwiched window glass 23 is raised.

  Next, the operation of the window regulator 3 according to this embodiment will be described. First, as shown in FIG. 8, when the window glass 23 is lifted until the window glass 23 comes into contact with the upper frame 43 (fully closed state) by the closing operation of the window glass 23, the upper frame 43 is moved to the window glass 23. The load is transmitted to the window glass support portion 19 that sandwiches the load, and further to the fixing bolt 20 that is stopped by the window glass support portion 19. On the other hand, a case is considered in which the driving of the belt 11 is delayed by the actuator 21 and the belt 11 continues to rotate counterclockwise. This state is hereinafter referred to as a fully closed instantaneous state.

  In this fully closed instantaneous state, in the prior art, the belt 11 that continues to rotate is given a torque load to the fixing bolt 20 that suppresses the rise, and this torque load may cause the fixing bolt 20 to loosen. Further, when a tensile load is applied to a fixing portion between the belt 11 that continues to rotate and the bracket 17 that is fixed, there is a possibility that an engagement failure may occur.

  Focusing on the engagement between the belt 11 and the bracket 17 in this embodiment in the fully closed instantaneous state, the belt 11 and the bracket 17 are integrally formed, so that the bracket 17 has a toothed portion 111 of the belt 11. The tooth portion 171 is naturally formed on the contacting surface. As shown in FIG. 9, the tooth portion 171 applies a load to the tooth portion 111 so as to prevent the belt 11 from rotating when the belt 11 is rotated to be detached from the bracket 17. Thereby, even if the engaging portion between the tooth portion 171 of the belt 11 and the bracket 17 formed of resin is slippery, the engagement between the bracket 17 and the belt 11 is maintained.

  When attention is paid to tightening of the fixing bolt 20 in this embodiment in the fully closed instantaneous state, the bracket 17 and the window glass are supported with respect to the fixing portion between the belt 11 and the bracket 17 as shown in FIGS. Since the screwing part with the part 19 is arranged on the right side (−X direction), the fixing bolt 20 fastened to the window glass support part 19 is fixed to the belt 17 which is fixed to the belt rotating in the upward direction. A clockwise torque is applied. If it does so, the direction of the torque which the bracket 17 exerts on the fixing bolt 20 and the fastening torque direction of the fixing bolt 20 and the window glass support part 19 will become the same. As a result, even if a torque is generated in the fastening direction with respect to the fixing bolt 20 due to the rotation of the belt 11, no torque is generated in the loosening direction, and the fixing bolt 20 is prevented from loosening. be able to.

(Embodiment 2)
In the first embodiment, when the screwing portion between the bracket 17 and the window glass support portion 19 is arranged on the right side (the −X direction in FIGS. 3 and 4) with respect to the fixing portion between the belt 11 and the bracket 17. Explained. At this time, the fixing bolt 20 is first placed in the bracket 17 and the lower part 191 (and the nut 201) so as to be inserted into the bracket 17 and the lower part 191 (and the nut 201). In the state, the direction of the torque exerted on the fixing bolt 20 by the bracket 17 and the direction of the fastening torque between the fixing bolt 20 and the nut 201 are the same.

  Hereinafter, the second embodiment of the present invention is a case where the screwed portion between the bracket 17 and the window glass support portion 19 is arranged on the left side (+ X direction in FIG. 10) with respect to the fixing portion between the belt 11 and the bracket 17. explain.

  In this arrangement, the fastening torque direction of the nut 201 and the direction of the rotational moment acting on the nut 201 via the bracket 17 are the same as shown in FIG. Then, the lower portion 191 and the bracket 17 are arranged in this order so as to be inserted into the bracket 17 next. A nut 201 for fastening the fixing bolt 20 is embedded in the bracket 17.

  According to this arrangement, in the fully closed instantaneous state, the nut 201 receives torque in the counterclockwise direction in a plan view of FIG. Applied. Then, this torque direction and the direction of the tightening torque with which the nut 201 tightens the fixing bolt 20 are the same. As a result, even if a torque is generated in the fastening direction with respect to the fixing bolt 20 due to the rotation of the belt 11, no torque is generated in the loosening direction, and the fixing bolt 20 is prevented from loosening. be able to. As a result, the same effects as those described in the first embodiment can be obtained.

(Embodiment 3)
Moreover, as another form, as shown to Fig.11 (a) and FIG.12 (a), using the fixing bolt 20 and the nut 201 which were formed with the screw structure of the left-handed screw, the belt 11 and the bracket 17 are connected. You may arrange | position the screwing part of the bracket 17 and the window glass support part 19 on the left side (+ X direction in FIG.11 and FIG.12) with respect to the adhering part. As for the arrangement of the screwed portion between the lower portion 191 and the bracket 17, as shown in FIG. 11B, when the nut 201 is a separate member, the fixing bolt 20 is first inserted into the bracket 17, and then the lower portion 191. The bracket 17, the lower part 191, and the nut 201 are arranged in this order so as to be inserted into the nut 201. 12B, when the nut 201 is insert-molded in the lower portion 191, the fixing bolt 20 is first inserted into the bracket 17 and then inserted into the lower portion 191, so that the bracket 17 and They are arranged in the order of the lower part 191.

  With such a configuration, the torque in the counterclockwise direction is applied to the fixing bolt 20 fastened to the window glass support portion 19 by the bracket 17 fixed to the belt 11 rotating in the upward direction. If it does so, the direction of the torque which the bracket 17 exerts on the fixing bolt 20 and the fastening torque direction of the fixing bolt 20 and the window glass support part 19 will become the same. Accordingly, as described above, torque is not generated in the loosening direction, and the fixing bolt 20 can be prevented from loosening. Furthermore, even in the configuration shown in the second embodiment, by using the fixing bolt 20 and the nut 201 formed in the left-handed screw structure, the right side (FIG. 10) with respect to the fixing portion between the belt 11 and the bracket 17. In the -X direction), a screwed portion between the bracket 17 and the window glass support portion 19 can be arranged to achieve the same effect.

  Further, the window regulator 3 according to the present embodiment can be attached to the left and right doors in the same arrangement as shown in FIGS. 1 and 13. As a result, the parts have exactly the same shape and can share the above two merits. Further, the operation can be simplified, and further, it can be manufactured at low cost by mass sales.

  Although the embodiments of the present invention have been described above, various modifications and combinations necessary for design reasons and other factors are described in the inventions described in the claims and the specific embodiments described in the embodiments of the invention. It should be understood that it falls within the scope of the invention corresponding to the examples.

It is a general view which shows the state which attached the window regulator to the inner panel of the right door. It is a schematic diagram which shows a window regulator. (A) which concerns on Embodiment 1 is a schematic diagram which shows the XZ plane of a bracket and a window glass support part. (B) is a schematic diagram which shows the YZ plane of a bracket and a window glass support part. (A) which concerns on Embodiment 1 is a schematic diagram which shows the XZ plane of a bracket and a window glass support part. (B) is a schematic diagram which shows the YZ plane of a bracket and a window glass support part. It is a schematic diagram which shows the window regulator attachment hole formed on the inner panel. It is a schematic diagram which shows the state of a window regulator when lowering a window glass. It is a schematic diagram which shows the state of the window regulator when raising a window glass. It is a schematic diagram which shows the fully closed state of a window glass. It is a schematic diagram which shows the state in which the shear force has arisen in the bracket. (A) which concerns on Embodiment 2 is a schematic diagram which shows the XZ plane of a bracket and a window glass support part. (B) is a schematic diagram which shows the YZ plane of a bracket and a window glass support part. (A) which concerns on Embodiment 3 is a schematic diagram which shows the XZ plane of a bracket and a window glass support part. (B) is a schematic diagram which shows the YZ plane of a bracket and a window glass support part. (A) which concerns on Embodiment 3 is a schematic diagram which shows the XZ plane of a bracket and a window glass support part. (B) is a schematic diagram which shows the YZ plane of a bracket and a window glass support part. It is a general view which shows the state which attached the window regulator to the inner panel of the left door.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Inner panel 3 Window regulator 11 Belt 13 Pulley 15 Retainer 17 Bracket 19 Window glass support part 20 Fixing bolt 21 Actuator 23 Window glass 41 Side frame 43 Upper frame

Claims (3)

A first connecting member fixed to one end of a window glass capable of reciprocating in a first direction;
An endless belt which is provided so as to move in a direction parallel to the first direction in a part of the region and teeth are formed on the inner surface;
A second connecting member fixed to the endless belt;
An operation or drive for moving the endless belt;
Have
The second connecting member is connected to the first connecting member by a bolt and a nut at a portion extending to the outer surface side of the endless belt, and the tightening rotation direction of the bolt and the nut is determined by the window glass. The glass ascending and descending, which is in the same direction as the direction of the rotational moment acting on the bolt or the nut via the second connecting member when the endless belt continues to rotate while contacting the window frame apparatus.   2. The glass lifting apparatus according to claim 1, wherein the second connecting member is a resin bracket integrally molded with a part of the endless belt. The endless belt is hung between a pulley disposed above, a retainer disposed below, and a drive or manual rotating portion of an actuator disposed in the middle.
3. The glass lifting and lowering apparatus according to claim 1, wherein the actuator moves back and forth in the first direction in a region between the pulley and the retainer by driving the actuator.

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