JP6563246B2 - Moving body moving device and window glass lifting device - Google Patents

Description

  The present invention relates to a moving body moving apparatus and a window glass elevating apparatus for elevating and moving a window glass of an automobile, for example.

  A window regulator is used for raising and lowering a window glass mounted on an automobile door. The window regulator includes a carrier plate, a drive unit, an ascending cable, a descending cable, a guide rail, and a direction changing unit that changes the direction of the cable.

  The carrier plate is attached to the window glass so as to support the lower end portion of the window glass. The carrier plate is guided by the guide rail and can be moved up and down. One end of an ascending cable and a descending cable is attached to the carrier plate, and is moved up and down as the ascending cable and the descending cable move.

  The guide rail is disposed along the moving direction of the window glass and guides the carrier plate along the moving direction. At the end of the guide rail, there is attached a direction changing portion on which the ascending cable or the descending cable abuts and is bent.

  The drive unit has a drum to which the other ends of the ascending cable and the descending cable are connected, and the carrier plate is moved up and down by winding or unwinding each cable by a motor that rotationally drives the drum.

  As the direction changing portion, there is a configuration in which a guide groove is provided in a curved portion of a semicircular cable guide, and the cable is guided around the guide groove in a sliding state (for example, a patent) Reference 1).

JP 2007-218044

  As described above, since the direction changing portion guides the cable in a sliding state, the use of the passage of time generates a rubbing noise between the cable twist mark and the cable generated on the bottom surface of the guide groove in the guide groove. There is a risk.

  As one method for suppressing such rubbing noise, it is conceivable to dispose a pulley in the direction changing portion. However, if the pulley is arranged so as to maintain a predetermined cable routing route determined by the width of the guide rail and the like, there is a drawback that the pulley diameter must be increased. Moreover, in order to prevent the cable from being detached from the pulley and the cable from being damaged due to the cable coming into contact with the side surface of the pulley groove, it is necessary to increase the pulley width. As a result, the pulley is increased in size and weight. There are drawbacks. Such an increase in the size of the pulley leads to an increase in the size of the window regulator. This is a great hindrance when the door panel is required to save space.

  The present invention has been made in consideration of the above points, and provides a moving body moving device and a window glass lifting device that can suppress the noise generated by a cable while suppressing an increase in size of the device.

One aspect of the moving body moving apparatus of the present invention is:
A drive unit;
A guide rail,
A carrier member that moves the moving body by sliding and moving with respect to the guide rail;
A cable having one end connected to the drive unit and the other end connected to the carrier member;
A pulley having a pulley groove;
A cable guide having a guide groove;
A moving body moving device comprising:
The moving body moving device has a cable bending structure in which a direction in which the cable extends is changed at a tip of the guide rail,
The cable bending structure, the cable is accommodated in said guide groove and the pulley groove by the guide groove, by the cable supporting the both ends of the bent portion of the cable to a predetermined bending radius, Turn the cable.

  According to the present invention, the direction of the cable is changed by bending the cable so that the cable has a predetermined bending radius in cooperation with the pulley and the guide rail. It becomes possible to suppress.

Schematic showing how the window regulator is attached to the door of an automobile The front view which shows the whole structure of the window regulator by embodiment Front view showing enlarged direction change part The perspective view which expands and shows a direction change part Side view of the direction change part viewed from the left Side view of the direction change section viewed from the right Side view for explanation of guide groove of cable guide Front view of pulley AA line sectional view of FIG. Side view of the window regulator in Fig. 1 as viewed from the right

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the embodiment, an example in which the moving body moving device of the present invention is applied to a window regulator of an automobile will be described. That is, in the embodiment, the moving body moved by the moving body moving device is a window glass.

  FIG. 1 is a schematic view showing an attachment state of a window regulator to a door of an automobile. An automobile door is provided with a door panel 10, a window glass 11, a sash 12 that slidably guides the window glass 11, and a window regulator 100 for raising and lowering the window glass 11. An edge portion of the window glass 11 positioned in the vehicle front-rear direction is guided by the sash 12 so as to be slidable in the vertical direction.

  FIG. 2 is a front view showing the overall configuration of the window regulator 100. The window regulator 100 changes the direction of the drive part 110, the guide rail 120, the carrier plate 130 which moves the window glass 11 by sliding and moving with respect to the guide rail 120, the cable 140, and the cable 140. And a direction changing unit 150 for performing the above operation. Incidentally, as the cable 140 of the present embodiment, only the inner cable is used without using the outer casing.

  The drive unit 110 has a drum (not shown) around which the cable 140 is wound in the drum housing 111. The drive unit 110 also has a motor 112 that rotates the drum. As for the connection between the motor 112 and the drum, a known connection structure can be used as long as the drum is connected in a forward / reverse direction by rotation of the drive shaft of the motor 112. The carrier plate 130 is attached to the lower end portion of the window glass 11 through the engagement holes 131 and 132 and can slide up and down with respect to the guide rail 120. In addition, one end of a rising cable 141 and one end of a lowering cable 142 are attached to the carrier plate 130, whereby the raising cable 141 is wound around the carrier plate 130 by a drum and the lowering cable 142 is fed out. When the ascending cable 141 is wound up by the drum and the ascending cable 141 is fed out, the descending cable 142 is pulled down and descends. Incidentally, the other ends of the ascending cable 141 and the descending cable 142 are fixed in the drum.

  The window regulator 100 is fixed in the door panel 10 in a state where the drum can rotate and the carrier plate 130 can move up and down.

  The direction changing unit 150 changes the routing direction of the ascending cable 141. The direction changing unit 150 is configured by a cable guide 160 and a pulley 170. The cable guide 160 is inserted and attached to the upper end of the guide rail 120. The pulley 170 is rotatably attached to the cable guide 160.

  FIG. 3 is an enlarged front view showing the direction changing section 150. FIG. 4 is an enlarged perspective view showing the direction changing portion 150. FIG. 5 is a side view of the direction changing unit 150 viewed from the left direction, and FIG. 6 is a side view of the direction changing unit 150 viewed from the right direction. FIG. 7 is a side view for explaining the guide groove of the cable guide 160. FIG. 8 is a front view of the pulley 170. 9 is a cross-sectional view taken along line AA in FIG.

  As can be seen from FIGS. 3 and 4, the cables 140 (141, 142) entering the direction changing portion 150 are guided by the guide groove 161 (FIG. 4) of the cable guide 160 and then enter the pulley groove 171 of the pulley 170. In addition, after being guided by the guide groove 161 of the cable guide 160, the direction changing portion 150 is withdrawn. Thereby, in the direction change part 150 of this Embodiment, the cable guide 160 and the pulley 170 cooperate and change the direction of the cable 140 by bending so that the cable 140 may become a predetermined bending radius. Here, the cable 140 has a predetermined rigidity to ensure its strength and has a minimum bending radius. Since the predetermined bending radius when the cable 140 is routed is not less than the minimum bending radius and is a bending state suitable for the design of each member such as the guide rail, the drum, and the carrier plate, the window regulator It is appropriately determined according to the purpose of the above.

  Here, the arrangement position of the cable 140 entering and exiting the direction changing section 150, that is, the arrangement width in the left-right direction of the ascending cable 141 in FIG. 3, is the diameter of the drum or the width of the guide rail 120. It depends on the size of the carrier plate 130 and the like. The diameter of the drum, the width of the guide rail 120, the size of the carrier plate 130, and the like are determined by the torque and strength required for the window regulator 100. Therefore, the position of the cable 140 is determined in advance according to the specifications of the window regulator 100.

  Therefore, if the direction changing part 150 is composed of only a pulley, it is necessary to increase the diameter of the pulley 170 in order to maintain the specified routing position of the cable 140. Here, in the window regulator 100, if the length of the upper part is made longer than the carrier plate 130, the height of the door panel 10 must be increased to accommodate the part. Therefore, in order to reduce the height of the door panel 10, it is preferable to make the length of the upper part of the carrier plate 130 as short as possible. However, an increase in the diameter of the pulley 170 inevitably increases the length of the upper portion of the carrier plate 130, which is not preferable.

  The direction changing portion 150 according to the present embodiment uses a pulley 170 at the abutting portion near the top where the abutting force due to the tension of the cable 140 is the largest, so that a guide groove such as a twist mark caused by the cable 140 is generated. The pulley diameter can be reduced by securing the cable routing route in the lateral direction of the cable 140 with the cable guide 160 while suppressing the generation of rubbing noise due to sliding between the bottom surface of the cable and the cable 140.

  Further, in the window regulator 100 of the present embodiment, the ascending cable 141 is stretched over the direction changing portion 150 including the pulley 170 and the cable guide 160. Thereby, it is possible to effectively suppress the rubbing sound of the ascending cable 141 to which a greater tension is applied compared to the descending cable 142. Further, the descent cable 142 is routed on the guide rail 120 so as to come into contact with the guide rail 120 when the carrier plate 130 is raised, in order to suppress abnormal noise caused by the descent cable 142. Further, the ascending cable 141 is routed on both sides of the guide rail 120 so as to be separated from the guide rail 120.

  As can be seen from FIG. 4, the cable guide 160 includes a base portion 162, a guide portion 163 having a guide groove 161, a shaft support portion 164 that supports the rotation shaft 172 of the pulley 170, and a rotation shaft 172 of the pulley 170. And an introduction portion 165 that leads from the outside of 160 to the shaft support portion 164. The fitting portion is provided so that the base portion 162 is inserted into the upper end of the rail guide 120. By fitting the upper end of the guide rail 120 into the fitting portion, the cable guide 160 is attached to the guide rail 120, and the cable The guide 160 is given torsional rigidity. In the case of the present embodiment, the cable guide 160 has a substantially semicircular upper portion, and a U-shaped notch (introduction portion) for attaching the pulley 170 is formed in the central portion in the left-right direction. ing. The lower end portion of the notch serves as a shaft support 164 for supporting the rotation shaft 172 of the pulley, and the open end at the upper portion of the notch moves the rotation shaft 172 of the pulley 170 from the outside of the cable guide 160 to the shaft support 164. It is an introduction part 165 for introduction. The pulley 170 disposed on the shaft support portion 164 is prevented from coming off from the cable guide 160 when the raising cable 141 is stretched over the pulley 170 and the cable guide 160. The pulley 170 rotates according to the movement of the ascending cable 141. As a result, the pulley 170 can be easily attached to the cable guide 160, and the pulley 170 can be easily replaced.

  As can be seen from FIG. 7, the guide groove 161 of the cable guide 160 has a drum-side enlarged diameter portion 161 a and an introduction portion-side parallel portion 161 b in the extending direction of the guide groove 161. As can be seen from FIGS. 5 and 6, the depth direction of the guide groove 161 includes a bottom portion 167 and a wall portion 168 that form the groove bottom. The enlarged diameter portion 161a is formed so as to increase in diameter in the extending direction of the ascending cable 141 (that is, the direction in which the ascending cable 141 extends from the cable guide 160). As a result, when the ascending cable 141 enters the cable guide 160, the ascending cable 141 does not abut against the wall of the guide groove 161 and is rubbed without being rubbed into the parallel portion 161b and further to the pulley groove 171. As a result, damage to the ascending cable 141 can be prevented. In addition, the guide groove 161 supports the both sides of the bent portion so that the bottom portion 167 presses the cable 140 toward the outside of the bending radius and the cable 140 has a predetermined bending radius, and the cable guide 160 applies tension. The cable 140 is guided as follows.

  FIG. 10 is a side view of the window regulator 100 of FIG. 1 as viewed from the right. As can be seen from this figure, the guide rail 120 has a curved shape in the longitudinal direction so as to match the shape of the door panel 10. Therefore, if the raising / lowering position of the carrier plate 130 that slides along the guide rail 120 changes, the position of one end of the rising cable 141 attached to the carrier plate 130 also changes accordingly. The guide groove 161 is displaced in the width direction. By providing the enlarged diameter portion 161a, it is possible to prevent the ascending cable 141 from coming into contact with the wall of the guide groove 161 and coming off from the guide groove 161 due to this displacement. In other words, even if the guide rail 120 is curved and the direction in which the cable 140 extends from the direction changing portion 150 is different from the tension direction of the cable 140, the direction changing portion 150 is caused by the enlarged diameter portion 161a. The difference between the extending direction from the cable and the cable tension direction can be dealt with. In the case of the lower end drive type window regulator in which the drive unit 110 is provided at the lower end of the guide rail 120 as in the embodiment, the angle between the rotation plane of the pulley 170 and the cable 140 increases due to the curvature of the guide rail 120. Therefore, the effect of the enlarged diameter portion 161a is particularly high.

  Further, the ascending cable 141 wound around the drum may be displaced in the drum width direction depending on the winding amount or winding state. In response to this displacement, the ascending cable 141 at the position of the guide groove 161 of the cable guide 160 is also displaced in the width direction of the guide groove 161. By providing the enlarged diameter portion 161a, it is possible to prevent the ascending cable 141 from coming into contact with the wall of the guide groove 161 and coming off from the guide groove 161 due to this displacement. In other words, even when the lead angle of the cable 140 between the drum and the cable guide 160 is large, it is possible to prevent an impact from being applied to the cable guide 160.

  Actually, when raising the window glass 11 (carrier plate 130), the raising cable 141 on the right side of the direction changing portion 150 in the raising cable 141 enters the cable guide 160. The diameter-enlarged portion 161 a prevents the lifting cable 141 from coming into contact with the wall of the guide groove 161 and coming off from the guide groove 161 due to the displacement of the rising cable 141. On the other hand, when the window glass 11 (carrier plate 130) is lowered, the ascending cable 141 on the left side of the direction changing portion 150 in the ascending cable 141 enters the cable guide 160. The rising cable 141 is prevented from coming into contact with the guide groove 161 and coming off from the guide groove 161 due to the displacement of the cable 141 by the enlarged diameter portion 161a.

  Incidentally, if the cable guide 160 is not used and the pulley 170 alone is used to prevent the lifting cable 141 from coming into contact with the wall of the guide groove 161 and coming off from the guide groove 161 due to the displacement of the lifting cable 141. The pulley 170 must be increased in thickness, resulting in an increase in the weight of the pulley 170 that is a movable part, which is not preferable. In the present embodiment, since the cable guide 160 that is the non-movable part can be provided with the above-described function, the pulley 170 can be thinned, and the pulley 170 that is the movable part can be reduced in weight.

  In addition, in the case of the present embodiment, a detachment stop 166 is provided so as to cover the guide groove 161 of the cable guide 160. The detachment stopper 166 is preferably provided at a position that covers at least a part of the enlarged diameter portion 161 a of the guide groove 161. Accordingly, it is possible to more reliably prevent the cable from being detached when the ascending cable 140 enters the cable guide 160. Note that the cable 140 may be provided on the upper side of the wall portion 168.

  As described above, according to the present embodiment, the cable bending structure in the direction changing portion 150 is configured by the cable guide 160 and the pulley 170, and the cable guide 160 and the pulley 170 cooperate to generate the cable 140. By bending the cable 140 to have a predetermined bending radius, the direction of the cable 140 is changed, so that the window regulator 100 that can suppress the rubbing noise caused by the cable 140 while suppressing the increase in size of the apparatus can be realized.

  The window regulator 100 of this embodiment can reduce the sliding part as a direction change member by arrange | positioning the pulley 170 in the top part to which the tension | tensile_strength of the cable 140 is most applied in the direction change part 150, and can twist. The pulley diameter can be reduced by securing the lateral routing route of the cable 140 with the cable guide 160 while preventing the generation of rubbing noise due to the mark. In addition, the pulley 170 is in contact with the top of the curved portion of the cable 140, and the shallow portion of the curved portion is in contact with the guide groove 161 that is a sliding groove, so that the pressing force to the guide groove 161 is reduced. ing. Since the cable bending radius to be achieved by the direction changing part 150 only needs to be realized by the cable guide 160 and the pulley 170, the degree of freedom of the radius of the pulley 170 is increased, and as a result, the pulley 170 can be downsized. It becomes.

  Further, since the cable 140 slides on the bottom portion 167 of the guide groove 161, it is possible to restrict the cable 140 from coming off the guide groove 161 by the wall portion 168. Therefore, the wall of the cable groove (pulley groove 171) of the pulley 170 can be prevented. It is possible to reduce the weight of the pulley 170 and reduce the weight, and the pulley 170 can be easily rotated. In addition, since a part of the tension of the cable 140 can be shared and supported by the cable guide 160, the load on the rotating shaft of the pulley 170 can be reduced, and as a result, the frictional noise of the rotating shaft 172 of the pulley 170 can be suppressed. .

  In the above-described embodiment, the case where the cable guide 160 that guides the cable 140 on both sides of the pulley 170 has been described. However, the present invention is not limited thereto, and the cable 140 is guided only on one side of the pulley 170. A cable guide may be provided. In short, a cable bending structure that changes the direction of the cable 140 by bending the cable 140 so as to have a predetermined bending radius in cooperation with the pulley 170 and the cable guide 160 may be used.

  In the above-described embodiment, the case where the direction changing unit 150 is used to change the direction of the rising cable 141 has been described. However, the direction changing unit 150 is used to change the direction of the lowering cable 142. Also good.

  In the above-described embodiment, the case where the present invention is applied to the lower end drive type window regulator in which the drive unit 110 is provided at the lower end of the guide rail 120 has been described. It is also applicable to a center drive type window regulator in which the drive unit 110 is provided on the bracket.

  Moreover, in the above-mentioned embodiment, although this invention was used when moving the window glass 11 to an up-down direction, it can be used also when moving a window glass to the left-right direction. Furthermore, the moving body to be moved is not limited to the window glass, but can be applied to the case of moving other moving bodies such as a door.

  The above-described embodiments are merely examples of implementation in carrying out the present invention, and the technical scope of the present invention should not be construed as being limited thereto. That is, the present invention can be implemented in various forms without departing from the gist or main features thereof.

  The present invention can be applied to, for example, an automobile window regulator.

DESCRIPTION OF SYMBOLS 11 Window glass 100 Window regulator 110 Drive part 111 Drum housing 112 Motor 120 Guide rail 130 Carrier plate 140 Cable 141 Lifting cable 142 Lowering cable 150 Direction change part 160 Cable guide 161 Guide groove 161a Wide diameter part 161b Parallel part 164 Shaft support part 170 Pulley 171 Pulley groove 172 Rotating shaft

Claims (5)

A drive unit;
A guide rail,
A carrier member that moves the moving body by sliding and moving with respect to the guide rail;
A cable having one end connected to the drive unit and the other end connected to the carrier member;
A pulley having a pulley groove;
A cable guide having a guide groove;
A moving body moving device comprising:
The moving body moving device has a cable bending structure in which a direction in which the cable extends is changed at a tip of the guide rail,
In the cable bending structure, the cable is accommodated in the pulley groove and the guide groove, and the guide groove supports both ends of the bent portion of the cable so that the cable has a predetermined bending radius. the cable redirecting,
The guide groove and the pulley groove are arranged adjacent to each other and cooperate to form the predetermined bending radius,
In the cable, the pulley is in contact with the top of the curved portion whose direction is changed, and the guide groove, which is a sliding groove, is in contact with the shallow portion of the curved portion,
The cable guide and the pulley constitute a direction changing part that changes the direction of the cable, and the pulley is arranged at the top where the tension of the cable is most applied in the direction changing part.
Mobile body moving device. The cable is routed so that one end side and the other end side extend from the bending structure,
A width of the guide groove in the extending portion where the cable extends from the cable guide has a diameter-expanding portion provided so as to increase the diameter in the extending direction;
The moving body moving apparatus according to claim 1 . The pulley has a pulley shaft;
The cable guide has a shaft support portion that supports the pulley shaft, and an introduction portion that introduces the pulley shaft from the outside of the cable guide to the shaft support portion,
By hanging the cable on the pulley and the cable guide, the pulley was prevented from coming off from the cable guide.
The moving body moving apparatus according to claim 1 or 2 . The moving body moving device according to any one of claims 1 to 3 is used.
The moving body is a window glass;
The carrier member is slidably attached to the guide rail so as to move in the vertical direction of the vehicle.
Window glass lifting device. The guide rail is curved in the longitudinal direction;
The window glass raising / lowering apparatus of Claim 4 .

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