JP2023086334A - Cable guide structure and driving device - Google Patents

Abstract

A cable guide structure capable of suppressing movement of a lower door to which an external force acts is provided.
A cable guide structure includes a shaft that connects an upper door and a lower door, a shaft that supports the shaft, a bracket that fixes the shaft to the upper door, and the shaft. A cable guide, which is arranged at a certain distance from the bracket in the extending direction and has a guide groove on an outer surface thereof for guiding a cable for suppressing the movement of the lower door, connects the shaft support and the cable guide. and a connecting portion.
[Selection drawing] Fig. 14A

Description

The present invention relates to a cable guiding structure and a driving device.

Patent Literature 1 discloses a locking device for a back door that bends so that the joint between an upper door and a lower door protrudes outward from the vehicle body.

The locking device disclosed in Patent Document 1 includes a center lock disposed between an upper door and a lower door to integrally hold the upper door and the lower door, and a door handle provided on the back door. and a cable that transmits the operating force to the center lock when the is operated. In the device disclosed in Patent Document 1, when the door handle is operated to open the fully closed back door, the operating force of the door handle is transmitted to the center lock via the cable. As a result, the upper door and the lower door are unlocked by the center lock, so even when the space behind the vehicle body is narrow, the back door can be opened while being folded.

JP 2009-209653 A

However, in the device disclosed in Patent Document 1, there remains a problem of how to suppress the movement of the lower door that is acted upon by an external force such as wind after the center lock is released. Further, in the locking device disclosed in Patent Document 1, for example, when an external force such as a strong wind is applied to the lower door while the back door is being opened, the swinging lower door may interfere with surrounding objects. There is

SUMMARY OF THE INVENTION It is an object of the present invention to provide a cable guide structure and a driving device that can suppress the movement of the lower door under the action of an external force.

The cable guide structure of the present invention comprises a shaft connecting an upper door and a lower door, a shaft support supporting the shaft, a bracket fixing the shaft to the upper door, and an extension of the shaft. a cable guide disposed at a position spaced apart from the bracket in the direction of a predetermined distance and having a guide groove on an outer surface thereof for guiding a cable for suppressing movement of the lower door; and

A drive device of the present invention includes the cable guide structure described above, a cable, and a drive section for driving the lower door.

ADVANTAGE OF THE INVENTION According to this invention, the cable guide structure and drive device which can suppress the movement of the lower side door to which the external force acted can be obtained.

1 is an external view showing an example of a rear portion of a vehicle 100 to which a drive system according to an embodiment of the invention is applied; FIG. An enlarged view showing an example of a door 1 provided with a drive device 10 according to an embodiment of the present invention. An enlarged view showing an example of a door 1 provided with a drive device 10 according to an embodiment of the present invention. 1 is a diagram showing a configuration example of a driving device 10 according to an embodiment of the present invention; FIG. Enlarged view of the second cable guide structure 2 according to the reference example FIG. 4 is a diagram showing a configuration example of the drive unit 11; A diagram for explaining the operation of the driving device 10. A diagram for explaining the operation of the driving device 10. A diagram for explaining the operation of the driving device 10. A diagram for explaining the operation of the driving device 10. A diagram for explaining the operation of the driving device 10. A diagram for explaining the operation of the driving device 10. A diagram for explaining the operation of the driving device 10. A diagram for explaining the operation of the driving device 10. A diagram for explaining the operation of the driving device 10. A diagram for explaining the operation of the driving device 10. A diagram for explaining the operation of the driving device 10. A diagram for explaining the operation of the driving device 10. A diagram for explaining the operation of the driving device 10. A diagram for explaining the operation of the driving device 10. A diagram for explaining the operation of the driving device 10. A diagram for explaining the operation of the driving device 10. A diagram for explaining the operation of the driving device 10. A diagram for explaining the operation of the driving device 10. A diagram for explaining the operation of the driving device 10. A diagram for explaining the operation of the driving device 10. A perspective view of a second cable guide structure 2R according to the present invention. A perspective view of a second cable guide structure 2R according to the present invention. A perspective view of a second cable guide structure 2R according to the present invention. A perspective view of a second cable guide structure 2R according to the present invention. A perspective view of a second cable guide structure 2R according to the present invention. A perspective view of a second cable guide structure 2R according to the present invention. A perspective view of a second cable guide structure 2R according to the present invention. A perspective view of a second cable guide structure 2L according to the present invention. A perspective view of a second cable guide structure 2L according to the present invention. A perspective view of a second cable guide structure 2L according to the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an external view showing an example of the rear portion of a vehicle 100 to which a drive system according to an embodiment of the invention is applied. A vehicle 100 includes a door 1 that opens or closes an opening 100a formed in the rear portion of the vehicle 100 .

The open state is a state in which the opening 100a is opened, and a load or the like can be taken in and out of the vehicle 100 through the opening 100a. The closed state is a state in which the opening 100a is closed.

The door 1 is, for example, a folding tailgate comprising an upper door 1a and a lower door 1b. The door 1 is not limited to the tailgate of the vehicle 100, and may be, for example, a flip-up door for entry and exit.

The upper door 1a is rotatably attached to the vehicle body via two hinges 2A ₁ and 2A ₂ . A lower door 1b is rotatably connected to the upper door 1a via two hinges 2B ₁ and 2B ₂ . The two hinges 2B ₁ and 2B ₂ are examples of connecting portions that connect the upper door 1a and the lower door 1b. Hereinafter, the two hinges 2A ₁ and 2A ₂ are simply referred to as "hinge 2A" when not distinguished from each other. Further, hereinafter, when the two hinges 2B ₁ and 2B ₂ are not distinguished, they are simply referred to as "hinge 2B".

Next, a configuration example of the drive device 10 according to the embodiment of the present invention will be described with reference to FIGS. 2 to 5. FIG. 2A and 2B are enlarged views showing an example of the door 1 provided with the driving device 10 according to the embodiment of the invention. A perspective view of the door 1 is shown in FIG. 2A, and a side view of the door 1 is shown in FIG. 2B. 3 is a diagram showing a configuration example of a driving device 10 according to an embodiment of the present invention, FIG. 4 is an enlarged view of a second cable guide structure 2 according to a reference example, and FIG. 5 is a diagram showing a configuration example of a driving section 11. is.

As shown in FIG. 2A, the door 1 is provided with two types of hinges 2A and 2B and a driving device 10. As shown in FIG. The two types of hinges 2A and 2B are arranged apart in the left-right direction of the door 1, that is, in the vehicle width direction.

The number of hinges 2A and hinges 2B is not limited to two, and may be one or more. For example, when the number of hinges 2A and hinges 2B is one each, the hinges 2A and hinges 2B are provided in the center of the door 1 in the left-right direction, and the driving device 10 moves the lower door 1b in the left-right direction. or near the left-right edge of the lower door 1b.

[Configuration of drive device 10]
As shown in FIG. 3, the drive device 10 includes a drive portion 11, an outer casing 12, a first cable guide structure 13, a cable 14, a cable end 15, an outer casing 16, a cable 17, and a second cable guide structure 2. ing.

[Configuration of Drive Unit 11]
The driving unit 11 is a device that generates a driving force for driving the lower door 1b by winding and unwinding the cables 14 and 17, respectively. The upper door 1a is driven by a PLG (Power Lift Gate) unit.

The drive unit 11 is provided at a position a certain distance from the hinge 2B, near the lower end of the lower door 1b, and near the central portion of the lower door 1b in the left-right direction.

The position where the drive unit 11 is provided is not limited to the vicinity of the center portion in the left-right direction of the lower door 1b, and may be near the edge portion in the left-right direction of the lower door 1b. However, in the case where the lower door 1b is a door having a recess that is recessed from the inside of the vehicle toward the outside of the vehicle, it is preferable to provide the drive unit 11 in the space formed in the recess of the lower door 1b.

With this configuration, the concave portion of the lower door 1b can be effectively used, so that the driving portion 11 can prevent the luggage compartment space from becoming narrow.

The drive unit 11 includes a motor and a power transmission unit such as a gear that transmits rotation of the motor to the drum. The details of the configuration of the drive unit 11 will be described later.

[Configuration of first cable guide structure 13]
The first cable guide structure 13 is a member that movably supports the cable 14 and changes its guide direction.

As shown in FIG. 3, the first cable guiding structure 13 includes a guide 13a carrying the cable 14 shown in FIG. 2A, a bracket 13b fixing the guide 13a to the door 1 shown in FIG. 2A, and a bracket 13b shown in FIG. The cable 14 pulled out of the guide 13a is pulled out of the guide 13a, and a stopper 13c abuts on the cable end 15 to stop the movement of the cable end 15 when the cable 14 is drawn into the guide 13a side.

[Configuration of cable 14]
The cable 14 is a member for transmitting a tensile force that pulls the upper door 1a and the lower door 1b together based on the driving force generated by the driving unit 11. As shown in FIG. The cable 14 includes a first portion of the cable laid from the upper door 1a to the lower door 1b. Note that the first portion of the cable will be described later.

The cable 14 is, for example, a flexible cable obtained by twisting metal wires, resin fiber wires, or the like.

One end of the cable 14 is connected to a drum provided with the drive section 11 . The other end of the cable 14 extends from the drive portion 11 towards the first cable guiding structure 13 and from there to the cable end 15 .

A portion of the entire cable 14 from the driving portion 11 to the first cable guide structure 13 is covered with an outer casing 12 for protecting the cable 14 .

[Cable end 15]
The cable end 15 is a metal member for fixing the end of the cable 14 to the upper door 1a. The cable end 15 is fixed, for example, near the lower end of the upper door 1a.

[Configuration of cable 17]
The cable 17 is a cable for suppressing movement of the lower door 1b while the door 1 is being opened or closed. Cable 17 includes a second portion of the cable that runs from upper door 1a to lower door 1b. Like the cable 14, the cable 17 is, for example, a flexible cable obtained by twisting metal strands, resin fiber strands, or the like. Note that the second portion of the cable will be described later.

[Configuration of second cable guide structure 2]
The second cable guide structure 2 simply shows a member that movably supports the cable 17 and changes its guide direction. As shown in FIG. 4, the second cable guide structure 2 includes a hinge 2B, a cable guide 2b, a fixed portion 2c and a drawer portion 2d.

[Configuration of Hinge 2B]
The hinge 2B includes an upper door hinge portion 21 fixed to the upper door 1a, a lower door hinge portion 22 fixed to the lower door 1b, and a shaft portion 23, for example.

[Configuration of Upper Door Hinge Portion 21]
The upper door hinge portion 21 is fixed to the upper door 1a by bolts, welding, or the like. A cable end 17a is fixed to a fixing portion 2c formed in the upper door hinge portion 21. As shown in FIG. The location where the cable end 17a is fixed may be, for example, the periphery of the upper door hinge portion 21 in addition to the fixing portion 2c formed in the upper door hinge portion 21 . The periphery of the upper door hinge portion 21 is, for example, a region between a position several millimeters away from the upper end portion of the upper door hinge portion 21 and the upper door hinge portion 21 .

The cable end 17a is a metal member for fixing the end of the cable 17 to the upper door 1a. Cable end 17 a is fixed to upper door hinge portion 21 .

[Configuration of lower door hinge portion 22]
The lower door hinge portion 22 is fixed to the lower door 1b by bolts, welding, or the like. A drawer portion 2 d is fixed to the lower door hinge portion 22 .

[Configuration of Shaft 23]
The shaft portion 23 is a metal shaft that rotatably supports the lower door hinge portion 22 with respect to the upper door hinge portion 21 and supports the cable guide 2b.

[Configuration of cable guide 2b]
The cable guide 2b is a direction changing member that changes the moving direction of the cable 17 from the lead-out portion 2d to the cable end 17a.

A recess is formed in the outer peripheral portion of the cable guide 2b, and the cable 17 is stretched over this recess. Accordingly, the cable guide 2b can be transported while preventing the cable 17 from falling off from the cable guide 2b.

The hinge 2B is not limited to the structural examples shown in FIGS. 3 and 4 as long as it has a structure capable of rotatably supporting the lower door 1b with respect to the upper door 1a.

[Structure of Drawer Portion 2d]
The lead-out portion 2 d is a member for fixing the end portion of the outer casing 16 to the lower door hinge portion 22 and for drawing out the cable 17 from the outer casing 16 .

The lead-out portion 2d is a cylindrical member made of metal. A female threaded portion is formed around the drawer portion 2d. After inserting the male threaded portion into the through hole formed in the lower door hinge portion 22, the drawer portion 2d is fixed to the lower door hinge portion 22 by tightening the nut on the male threaded portion.

As shown in FIG. 5, the driving section 11 includes a motor 11b, a gear 11d, a drum 11c, a gear 11e, a gear 11f, and a drum 11g.

The gear 11d is an annular gear for transmitting the rotational force of the motor 11b to the drums 11c and 11g.

The drum 11c is an annular member for winding or feeding the cable 14. As shown in FIG. The drum 11c is provided coaxially with the gear 11d and rotates together with the gear 11d.

The gear 11e is a gear for reducing the rotational speed of the gear 11d, and is provided coaxially with the gear 11d.

The gear 11f is a fan-shaped gear obtained by cutting a part of a disk. The gear 11f rotates in a direction opposite to the rotation direction of the gear 11e by meshing with the gear 11e.

The drum 11g is an annular member for winding or unwinding the cable 17 shown in FIG. The drum 11g is provided coaxially with the gear 11f and rotates together with the gear 11f.

In the drive unit 11 configured as described above, the rotational force of the motor 11b is transmitted to the gear 11d via a planetary gear and a screw nut (not shown).

Rotation of the gear 11d rotates the drum 11c to wind up or let out the cable 14 shown in FIG.

Further, the rotation of the gear 11d rotates the gear 11e, and the gear 11f meshing with the gear 11e rotates in the direction opposite to the rotation direction of the gear 11e.

Then, when the cable 14 is wound around the drum 11c, the cable 17 is let out from the drum 11g. Also, when the cable 14 is let out from the drum 11c, the cable 17 is wound around the drum 11g.

In the driving unit 11 according to the present embodiment, since the reduction ratio from the motor 11b to the gear 11f is larger than the reduction ratio from the motor 11b to the gear 11d, the amount of rotation of the drum 11g with respect to the predetermined number of rotations of the motor 11b is is smaller than the amount of rotation of the drum 11c.

Therefore, the amount of cable 17 paid out by drum 11g is less than the amount of cable 14 wound by drum 11c. Also, the amount of winding of the cable 17 by the drum 11g is less than the amount of feeding out the cable 14 by the drum 11c.

The operation of the driving device 10 will now be described with reference to FIGS. 6A to 13B. 6A to 13B are diagrams for explaining the operation of the driving device 10. FIG.

6A, 7A, 8A, 9A, 10A, 11A, 12A, 13A and 13C show the open and closed states of the door 1. FIG.

6B, 6C, 7B, 7C, 8B, 9B, 10B, 11B, 12B, 12C, 13B and 13C show the operating states of the drive device 10. .

Below, the operation of the driving device 10 when opening the door 1 will first be described with reference to FIGS. 6A to 9B.

When the door 1 is fully closed as shown in FIG. 6A, the cable end 15 is located near the first cable guiding structure 13 as shown in FIG. 6B. At this time, as shown in FIG. 6C, the cable 17 is neither wound up nor unwound.

When the fully closed door 1 is opened, the cable 14 is drawn out as shown in FIG. 7B and the cable 17 is wound up as shown in FIG. 7C in conjunction with the opening operation of the upper door 1a.

This weakens the pulling force that pulls the upper door 1a and the lower door 1b together. Therefore, as shown in FIG. 7A, the lower door 1b hangs down due to gravity, and the bending degree of the lower door 1b with respect to the upper door 1a increases.

In addition, since the cable 17 is wound at the same time as the cable 14 is paid out, when an external force acts on the lower door 1b due to, for example, a strong wind to reduce the degree of bending of the lower door 1b with respect to the upper door 1a. However, the angle of the lower door 1b with respect to the upper door 1a can be maintained at a predetermined angle. Therefore, it is possible to prevent the lower door 1b from interfering with objects around the door.

When the upper door 1a is further opened, the cable 14 is further extended as shown in FIG. 8B. Therefore, as shown in FIG. 8A, the bending degree of the lower door 1b with respect to the upper door 1a is further increased.

In this manner, the cable 14 is let out in conjunction with the opening operation of the upper door 1a, so that the degree of bending of the lower door 1b with respect to the upper door 1a increases. As a result, even if an obstacle such as a person or a wall exists in front of the door 1, the lower door 1b can be prevented from coming into contact with the obstacle.

Further, when the upper door 1a is completely opened, the cable 14 is wound as shown in FIG. 9B, and the tensile force pulling the upper door 1a and the lower door 1b together is strengthened. As a result, as shown in FIG. 9A, the flat portion at the end of the lower door 1b is pressed against the flat portion at the end of the upper door 1a, and the degree of bending of the lower door 1b with respect to the upper door 1a becomes smaller, and the door 1 is fully opened.

Next, the operation of the driving device 10 when closing the door 1 will be described with reference to FIGS. 10A to 13B.

When the door 1 is fully open as shown in FIG. 10A, the cable end 15 is positioned near the first cable guiding structure 13 as shown in FIG. 10B.

When the fully open door 1 is closed, as shown in FIG. 11B, the cable 14 is let out, thereby weakening the pulling force pulling the upper door 1a and the lower door 1b together. Therefore, as shown in FIG. 11A, the lower door 1b hangs down due to gravity, and the bending degree of the lower door 1b with respect to the upper door 1a increases.

After the cable 14 has been paid out by a certain amount, when the closing operation of the upper door 1a is started as shown in FIG. 12A, the cable 14 is wound as shown in FIG. 12B in conjunction with the closing operation of the upper door 1a. At the same time the cable 17 is paid out as shown in FIG. 12C.

As a result, the tensile force that pulls the upper door 1a and the lower door 1b together is strengthened. As a result of pressing the flat portion at the end of the lower door 1b against the flat portion at the end of the upper door 1a, the degree of bending of the lower door 1b with respect to the upper door 1a is reduced. In this manner, the cable 14 is wound in conjunction with the closing operation of the upper door 1a, thereby preventing the lower end of the lower door 1b from contacting the vehicle body.

Further, since the cable 17 is unwound at the same time as the cable 14 is wound, even if an external force acting on the lower door 1b to increase the degree of bending of the lower door 1b with respect to the upper door 1a is caused by, for example, a strong wind. The angle of the lower door 1b with respect to the upper door 1a can be maintained at a predetermined angle. Therefore, it is possible to prevent the lower door 1b from interfering with objects around the door.

When the closing operation of the upper door 1a and the winding of the cable 14 are continued, as shown in FIG. state. At this time, the cable end 15 is positioned near the first cable guiding structure 13 as shown in FIG. 13B. At this time, as shown in FIG. 13C, the cable 17 is neither wound up nor unwound.

In the present embodiment, a configuration example of the drive device 10 that drives the lower door 1b using two cables has been described, but the configuration example of the drive device 10 is not limited to this. 10 may be configured to drive the lower door 1b using a single cable.

Specifically, one cable may be wound around one pulley provided in the drive unit 11 . In this case, the portion from the pulley to the cable end 15 shown in FIG. 2A corresponds to the above-described first portion, and the portion from the pulley to the fixing portion 2c shown in FIG. 4 corresponds to the above-described second portion. Equivalent to. 4 so that the amount of feeding of the second portion is less than the amount of winding of the first portion, and the amount of winding of the second portion is less than the amount of feeding of the first portion. 2, the mounting position of the hinge 2B to the door 1, the diameter of the cable guide 2b, and the like are adjusted.

Further, the drive unit 11 according to the present embodiment may be configured to individually control the amount of rotation of the drum 11c and the drum 11g using the torque of two motors. With this configuration, the amount of rotation of the drums 11c and 11g can be finely adjusted, so that the cable extension amount or winding amount can be easily adjusted simply by changing the control program of the drive unit 11 in response to changes in the specifications of the door 1. can be adjusted to However, when the rotational force of a single motor is used as in the drive unit 11 according to the present embodiment, the configuration of the drive unit 11 is simplified, so the manufacturing cost of the drive unit 11 and the drive device 10 is reduced. is reduced and reliability is improved.

As described above, in drive device 10 according to the present embodiment, when the first portion of the cable is paid out, the second portion of the cable is wound up, and the first portion of the cable is wound up. Sometimes a second portion of the cable is configured to pay out.

Therefore, when the first portion of the cable is let out to increase the degree of bending of the lower door 1b with respect to the upper door 1a, the second portion of the cable is wound to increase the degree of bending of the lower door 1b with respect to the upper door 1a. By suppressing the movement, even if an external force acts on the lower door 1b, the angle of the lower door 1b with respect to the upper door 1a can be maintained at a predetermined angle.

When the first portion of the cable is wound to reduce the degree of bending of the lower door 1b with respect to the upper door 1a, the second portion of the cable is let out to reduce the degree of bending of the lower door 1b with respect to the upper door 1a. By suppressing the movement, even if an external force acts on the lower door 1b, the angle of the lower door 1b with respect to the upper door 1a can be maintained at a predetermined angle.

Furthermore, even if an external force acts on the lower door 1b, the angle of the lower door 1b with respect to the upper door 1a can be maintained at a predetermined angle. can be suppressed from interfering with other objects.

For example, it is understood that the following aspects also belong to the technical scope of the present disclosure.

(1) The driving device is a driving device for driving an upper door and a lower door rotatably connected to the upper door, and is laid from the upper door to the lower door. at least one cable having a first portion and a second portion that extend through the cable; and by extending the first portion, the degree of bending of the lower door with respect to the upper door is increased, and the second portion is extended. and a drive for constraining movement of the lower door relative to the upper door by winding up.

(2) The drive unit includes a drum unit that uses the rotational force of one motor to feed out the first portion and wind up the second portion.

(3) The drive unit reels out the second portion when winding the first portion to reduce the degree of bending of the lower door with respect to the upper door.

(4) A hinge that rotatably connects the lower door to the upper door is provided at the connecting point, and one end of the second portion extends around the hinge of the upper door. , and the other end of the second portion is connected to the driving portion arranged on the lower door.

(5) A first hinge and a second hinge for rotatably connecting the lower door with respect to the upper door are provided at the connecting portion so as to be spaced apart in the lateral direction of the door. One end of the second portion of one of the cables is connected around the first hinge of the upper door, and one end of the second portion of the other cable is connected to the first hinge of the upper door. 2 hinges, and the other end of each of the second portion of the one cable and the second portion of the other cable is connected to the driving portion disposed on the lower door. be.

(Second cable guide structure 2 of the present invention)
A configuration example of the second cable guide structure 2 of the present invention will be described with reference to FIGS. 14A to 14G and FIGS. 15A to 15C. From FIG. 14 onward, an orthogonal coordinate system consisting of the Y-axis, X-axis and Z-axis is shown. The directions indicated by the arrows on the Y-axis, X-axis, and Z-axis are the positive Y-axis direction, the positive X-axis direction, and the positive Z-axis direction, respectively, and the directions opposite to these directions are the negative Y-axis direction and the negative X-axis direction, respectively. The axial direction is defined as the negative Z-axis direction. Here, the Y-axis direction represents the vehicle width direction, and the positive Y-axis direction is the direction from the left side to the right side of the vehicle 100 . The X-axis direction represents the front-rear direction of the vehicle 100 , and the plus X-axis direction is the direction from the front side to the rear side of the vehicle 100 . The Z-axis direction represents the vertical direction of the vehicle 100, and the positive Z-axis direction is the direction from the bottom to the top of the vehicle 100. As shown in FIG.

(Second cable guide structure 2R)
Each of Figures 14A-14G is a perspective view of a second cable guiding structure 2R according to the present invention. The second cable guide structure 2R shown in FIGS. 14A to 14G is arranged on the right side of the upper door 1a when the vehicle is viewed from behind with respect to the forward direction of the vehicle.

Although two cables 171 and 172 are shown in FIGS. 14A to 14G, there is actually one cable. A cable 171 represents a cable that is pulled out from the cable guide 2b when the lower door 1b is not bent (see FIG. 6A). Cable 172 represents the cable that is pulled out from cable guide 2b when lower door 1b is bent (see FIG. 7A). Hereinafter, the cables 171 and 172 will be referred to as "cables 17" when not distinguished from each other.

The second cable guide structure 2R is a member that movably supports the cable 17 and changes its guide direction. The second cable guide structure 2R is screwed to the upper door 1a.

In the second cable guide structure 2 shown in FIG. 4, the cable guide 2b is arranged near the center of the shaft portion 23, whereas in the second cable guide structure 2R according to the present invention, the extension direction of the shaft portion 23 is A shaft support portion 2e is provided at the central portion in D, and a cable guide 2b is provided at an end portion in the extending direction D of the shaft portion 23. As shown in FIG.

The second cable guide structure 2R includes a shaft portion 23, a shaft support portion 2e, a bracket 2f, a cable guide 2b, a connecting portion 2g, and a fixing portion 2c1.

(Shaft portion 23)
The shaft portion 23 is a metal shaft that rotatably supports the lower door hinge portion 22 (see FIG. 4) with respect to the upper door hinge portion 21 and supports the cable guide 2b, the upper door hinge portion 21, and the pivot portion 2e. is.

The shaft portion 23 is inserted into the cable guide 2b, the first end portion 21a of the upper door hinge portion 21, the pivot portion 2e, and the second end portion 21b of the upper door hinge portion 21 in this order. A nut is fastened to the tip in the negative Y-axis direction. As a result, both ends of the shaft portion 23 are supported by the upper door hinge portion 21, and the central portion of the shaft portion 23 in the extending direction D is supported by the shaft support portion 2e. The cable guide 2b, the upper door hinge portion 21, and the pivot portion 2e are fixed to the shaft portion 23. As shown in FIG.

(Rotating portion 2e)
The shaft support portion 2e has a through hole penetrating in the Y-axis direction, and supports the vicinity of the center of the shaft portion 23 inserted into the through hole. The pivot portion 2e is fixed to the upper door 1a via the bracket 2f and the upper door hinge portion 21. As shown in FIG.

(Bracket 2f)
The bracket 2f is a plate-shaped member for fixing the shaft support portion 2e to the upper door 1a, and is fixed to the upper door 1a by a screw inserted in the X-axis direction.

(Cable guide 2b)
The cable guide 2b has a sector shape and is a member that changes the extending direction of the cable 17 connected to the fixing portion 2c1. The configuration of fixing portion 2c1 will be described later.

The cable guide 2b is arranged at a certain distance in the extending direction D of the shaft portion 23 from each of the bracket 2f and the shaft support portion 2e.

Since the cable guide 2b is provided at a fixed distance from the bracket 2f, the cable guide 2b can be adjusted to the shape of the door 1 compared to the case where the cable guide 2b is formed at the position of the pivot portion 2e. The degree of freedom in design is improved. Therefore, the radius of the cable guide 2b can be increased, and the width of the cable guide 2b in the circumferential direction can be increased.

The cable guide 2b has a through hole through which the shaft portion 23 passes, and the cable guide 2b is fixed to the end portion of the shaft portion 23 by inserting the shaft portion 23 into the through hole.

(Guide groove 2b2 of cable guide 2b)
The cable guide 2b has a guide groove 2b2 that guides the cable 17 while suppressing movement of the lower door 1b (see FIG. 4). The guide groove 2b2 is formed on the outer surface 2b1 in the circumferential direction of the arc of the fan-shaped cable guide 2b.

The shape of the guide groove 2b2 is, for example, an arc shape with a predetermined central angle θ (see FIG. 14E). The central angle θ is equal to the angle formed by one end face and the other end face in the circumferential direction of the cable guide 2b around the vicinity of the shaft portion 23, and is, for example, approximately 135 degrees. Note that the central angle θ is not limited to about 135 degrees, and may be 90 degrees or more and 360 degrees or less.

Thus, by increasing the length of the cable compared to the structure of FIG. 4, the effect of preventing contact with the lower door is enhanced.

(Support structure for cable guide 2b)
The cable guide 2b is arranged outside the first end portion 21a of the upper door hinge portion 21 (on the side opposite to the pivot portion 2e side) and fixed to the end portion of the shaft portion 23 in the plus Y-axis direction. Thereby, the cable guide 2b is supported by the shaft portion 23 fixed by the first end portion 21a, the pivot portion 2e, and the second end portion 21b.

With this configuration, when the lower door 1b is operated, axial displacement of the cable guide 2b is suppressed compared to the case where the shaft portion 23 is supported only by the shaft support portion 2e. Therefore, since the cable guide 2b can guide the cable 17 stably, the cable 17 is less likely to come off from the cable guide 2b.

(Connecting portion 2g)
The connecting portion 2g is a member that connects the cable guide 2b, which is arranged at a certain distance from the shaft support portion 2e in the extending direction D of the shaft portion 23, to the shaft support portion 2e and the bracket 2f. The connecting portion 2g is a plate-like member extending from the cable guide 2b toward the end portion of the shaft support portion 2e.

The connecting portion 2g, the shaft support portion 2e, the cable guide 2b, and the connecting portion 2g may be integrally manufactured by die-casting, cutting, or the like, or may be manufactured separately and then joined by welding or the like. Anything is fine.

(Position of connecting portion 2g)
The connecting portion 2g is preferably provided between the facing surfaces of the cable guide 2b and the shaft support portion 2e. With this configuration, since the connecting portion 2g is arranged in the space between the cable guide 2b and the shaft support portion 2e, compared to the case where the connecting portion 2g is connected to the outer surface 2b1 of the cable guide 2b or the like, the connecting portion The second cable guide structure 2R can be miniaturized by the size of 2g, and the types of applicable vehicles can be increased.

(Fixed portion 2c1)
The fixed portion 2c1 is provided integrally with the cable guide 2b and is connected to the end portion of the guide groove 2b2 (see FIGS. 14C and 14D). A metal cable end provided at the tip of the cable 17 is inserted into the fixing portion 2c1.

For example, the cable 17 pulled out from the lead-out portion 2d shown in FIG. 4 is guided by the guide groove 2b2 and laid to the fixed portion 2c1, and then the cable end connected to the cable 17 is inserted into the fixed portion 2c1. . Thus, in the second cable guide structure 2R, the cable 17 is fixed to the fixed portion 2c1 provided in the cable guide 2b instead of the fixed portion 2c in the second cable guide structure 2 shown in FIG. .

(Effect of fixing portion 2c1)
In the second cable guide structure 2 shown in FIG. 4, since the cable 17 is connected to the fixed portion 2c provided in the upper door hinge portion 21, the cable 17 is inserted between the fixed portion 2c and the guide groove 2b2 of the cable guide 2b. A gap GP is formed in which 17 is not retained.

On the other hand, in the second cable guide structure 2R according to the present invention, since the fixed portion 2c1 is provided integrally with the cable guide 2b, the cable 17 is laid from the fixed portion 2c1 toward the guide groove 2b2 without gaps. . Therefore, even when the lower door 1b is bent as shown in FIG. 7A, the contact area between the cable 171 and the guide groove 2b2 is ensured, so that the cable 171 is not easily removed from the cable guide 2b. can.

(Second cable guide structure 2L)
Each of Figures 15A-15C is a perspective view of a second cable guiding structure 2L according to the present invention. The second cable guide structure 2L is arranged on the left side of the upper door 1a when the vehicle is viewed from behind in the forward direction of the vehicle.

Also, the second cable guide structure 2L has a shape that is symmetrical with the second cable guide structure 2R with respect to the YZ plane. Other than this, the second cable guiding structure 2L has the same configuration as the second cable guiding structure 2R. For this reason, a detailed description of the function and configuration of the second cable guide structure 2L will be omitted below.

As described above, the second cable guide structures 2R and 2L according to the present invention include the shaft portion 23 that connects the upper door 1a and the lower door 1b, the shaft support portion 2e that supports the shaft portion 23, the shaft A bracket 2f for fixing the support portion 2e to the upper door 1a, and a cable 17 arranged at a certain distance from the bracket 2f in the extending direction D of the shaft portion 23 and guiding a cable 17 for suppressing movement of the lower door 1b on the outer surface 2b1. A cable guide 2b having a guide groove 2b2 and a connecting portion 2g connecting the shaft support portion 2e and the cable guide 2b.

Since the cable guide 2b is provided at a fixed distance from the bracket 2f, the degree of freedom in designing the cable guide 2b is improved compared to the case where the cable guide 2b is formed at the position of the pivot 2e. . Therefore, the radius of the cable guide 2b can be increased and the width of the cable guide 2b in the circumferential direction can be increased. Therefore, the portion of the cable housed in the guide groove 2b2 can be increased.

Further, by increasing the length of the cable compared to the structure of FIG. 4, the effect of preventing contact with the lower door is enhanced.

For example, it is understood that the following aspects also belong to the technical scope of the present disclosure.

(1) The cable guide structure includes a shaft connecting an upper door and a lower door, a shaft support supporting the shaft, a bracket fixing the shaft to the upper door, and an extension of the shaft. a cable guide disposed at a position spaced apart from the bracket in the direction of a predetermined distance and having a guide groove on an outer surface thereof for guiding a cable for suppressing movement of the lower door; and

(2) The shape of the guide groove is an arc with a central angle of 90 degrees or more and 360 degrees or less.

(3) The cable guide supports the shaft.

(4) The connecting portion is provided on each of the facing surfaces of the cable guide and the shaft support portion.

(5) A drive device includes the above cable guide structure, the cable, and a drive section that drives the lower door.

It should be considered that the embodiments disclosed this time are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the claims rather than the above description, and is intended to include all changes within the meaning and scope of the claims and equivalents.

The embodiments of the present invention have been described above. It should be noted that the above description is an illustration of preferred embodiments of the present invention, and the scope of the present invention is not limited thereto. In other words, the description of the configuration of the apparatus and the shape of each part is an example, and it is clear that various modifications and additions to these examples are possible within the scope of the present invention.

INDUSTRIAL APPLICABILITY The cable guide structure and drive device according to the present invention are useful as a structure capable of suppressing movement of the lower door to which an external force acts.

1 door 1a upper door 1b lower door 2 second cable guide structure 2A hinge 2A ₁ hinge 2A ₂ hinges 2B hinge 2B ₁ hinge 2B ₂ hinges 2b cable guide 2b1 outer surface 2b2 guide groove 2c fixing part 2c1 fixing part 2d drawer part 2e Shaft 2f Bracket 2g Connecting Part 2R Second Cable Guiding Structure 2L Second Cable Guiding Structure 10 Driving Device 11 Driving Part 11b Motor 11c Drum 11d Gear 11e Gear 11f Gear 11g Drum 12 Outer Casing 13 First Cable Guiding Structure 13a Guide 13b Bracket 13c stopper 14 cable 15 cable end 16 outer casing 17 cable 17a cable end 21 upper door hinge portion 22 lower door hinge portion 23 shaft portion
171 cable 172 cable 100 vehicle 100a opening D extending direction GP gap

Claims (5)

a shaft connecting the upper door and the lower door;
a shaft supporting portion that supports the shaft portion;
a bracket that secures the pivot to the upper door;
a cable guide disposed at a position spaced apart from the bracket in the extending direction of the shaft portion and having a guide groove on an outer surface thereof for guiding a cable that suppresses movement of the lower door;
a connecting portion that connects the shaft support portion and the cable guide;
cable guidance structure. 2. The cable guiding structure according to claim 1, wherein the shape of said guide groove is an arc with a central angle of 90 degrees or more and 360 degrees or less. 3. The cable guide structure according to claim 1, wherein the cable guide supports the shaft. 4. The cable guide structure according to any one of claims 1 to 3, wherein the connecting portion is provided on each of the facing surfaces of the cable guide and the shaft support portion. A drive device comprising the cable guide structure according to any one of claims 1 to 4, the cable, and a drive section for driving the lower door.

Images