JP7415804B2 - sliding door opening/closing device - Google Patents

Description

The present invention relates to an opening/closing device for a sliding door at the rear of a vehicle, and for example, in a small hybrid vehicle, it is possible to balance the arrangement of a battery device that is the power source of the vehicle and a motor that is a drive source that slides the sliding door. This relates to a sliding door opening/closing device that can be used.

BACKGROUND ART In recent years, a sliding door that is openable and closable for getting on and off the rear seat of a vehicle has generally been structured to be slid by an electric opening/closing device.
FIG. 7 is a perspective view of a sliding door opening/closing device for a vehicle disclosed in Patent Document 1. This sliding door opening/closing device includes a door opening/closing unit 200 that slides a sliding door (not shown) in an opening/closing direction, and a motor 210 as a drive source that drives the door opening/closing unit 200.

The door opening/closing unit 200 includes a transmission belt 201 rotatably arranged along the sliding direction of the sliding door, and a drive pulley 202 for rotating the transmission belt 201. A door bracket 203 connected to the sliding door is fixed to the power transmission belt 201, and the sliding door slides as the power transmission belt 201 moves (rotates).
The door opening/closing unit 200 is installed in a rocker panel 60 that forms the lower edge of the vehicle body, and the motor 210 is installed on the floor inside the vehicle interior. Further, the drive pulley 202 is arranged directly below a motor 210 for rotating the drive pulley 202.

Here, FIG. 8 shows a plan sectional view of a structure in which the door opening/closing unit 200 is housed in the rocker panel 60 and the motor 210 is arranged on the floor, similar to the structure of the invention disclosed in Patent Document 1. 9 is a sectional view taken along the line AA in FIG. 8, and FIG. 10 is a sectional view taken along the line BB in FIG.
As shown in FIGS. 8 to 10, a motor 210 is disposed directly above the drive pulley 202 of the door opening/closing unit 200, and the drive pulley 202 is rotationally driven by the drive of the motor 210, and the drive pulley 202 is thereby disposed within the rocker panel 250. The transmission belt 201 moves, and the sliding door 51 connected to the transmission belt 201 is opened and closed.
As shown in FIG. 8, the transmission belt 201 and the drive pulley 202 that constitute the door opening/closing unit 200 are housed in a door pocket 230 that is elongated along the longitudinal direction of the vehicle.

JP2018-176980A

By the way, in recent years, hybrid vehicles that use batteries as a driving source have become popular, and in particular, demand for small hybrid vehicles equipped with sliding doors has increased.
As shown by the broken line in FIG. 8, a battery device 300, which is generally a power source for a hybrid vehicle, is formed to be thin and have a wide area in order to secure a large interior space. Therefore, it is often placed astride the area under the feet of passengers sitting in the rear seats.

However, in the above-described configuration, the drive pulley 202 on which the transmission belt 201 is suspended is located near the front of the door opening in the longitudinal direction of the vehicle, so the motor 210 directly above the drive pulley 202 is located at the rear It will be placed in the floor area under the feet of the seat occupant. That is, since the arrangement area of the battery device 300 and the arrangement position of the motor 210 interfere with each other, there is a problem that the size of the battery device 300 in the planar direction is limited.

To solve the above problem, it is possible to extend the door opening/closing unit 200 forward and place the motor 210 under the front seat, but in that case, the power transmission belt 201 and the drive pulley 202 are accommodated. Since it is necessary to form the door pocket 230 longer, there is a problem that the cost increases as the weight increases.

In addition, in order to connect the transmission belt 201 disposed inside the door pocket 230 and the sliding door 51, a horizontally long opening is formed in the side surface of the rocker panel 60 (and the door pocket 230) in the longitudinal direction of the vehicle. There is also a problem in that dirt and dust enters the drive pulley 202 and adheres to the grease applied to the drive pulley 202, causing abnormal noise.

Furthermore, in the configuration shown in FIG. 8, the transmission belt 201 is arranged along the width of the door opening, and it is necessary to engage the transmission belt 201 with the drive pulley 202 arranged within the width. In order to drive the transmission belt 201 by the rotation of the drive pulley 202, subordinate pulleys 204A and 204B are arranged on the left and right sides of the drive pulley 202, and the transmission belt 201 suspended on the drive pulley 202 is placed at approximately right angles on both the left and right sides of the drive pulley 202. It needed to be bent.
However, when the transmission belt 201 is bent at a substantially right angle on both the left and right sides of the drive pulley 202, the load becomes large, so the drive motor 210 needs to be driven at high output, which poses a problem of high cost. Ta.

The present invention has been made to solve the above-mentioned problems, and in a hybrid vehicle or the like that uses a battery as a drive source, the drive motor for moving the sliding door is located in a battery device that is the power source of the vehicle. To provide a sliding door opening/closing device that avoids interfering with the installation area of the door, prevents the generation of abnormal noise due to adhesion of dust, drives the motor at low output, and improves the durability of the transmission belt. With the goal.

In order to solve the above-mentioned problems, a sliding door opening/closing device according to the present invention is a sliding door opening/closing device for opening and closing a door opening in a vehicle body by a rear sliding door of an automobile vehicle, the sliding door opening/closing device opening/closing a door opening in a vehicle body by a rear sliding door of an automobile. a transmission belt housed in a rocker panel forming a lower edge, disposed along the sliding direction of the sliding door and for moving the sliding door; and a transmission belt formed in a long length along the longitudinal direction of the vehicle within the rocker panel. a door pocket that accommodates the transmission belt over at least the length of the width of the door opening, a drive pulley that engages with the transmission belt and moves the transmission belt, and a drive motor that rotationally drives the drive pulley. An opening through which the transmission belt is inserted is formed in the front side surface of the door pocket in the longitudinal direction of the vehicle, and the drive pulley and the drive motor are arranged at a front side of the door pocket in the longitudinal direction of the vehicle, apart from the door pocket. The transmission belt is disposed in the opening, and the transmission belt inserted through the opening is suspended by the drive pulley.

Note that the drive motor is preferably disposed at a position below the front seat in the longitudinal direction of the vehicle.
Further, it is preferable that the drive pulley is rotatably provided coaxially with the rotation axis of the drive motor, and disposed directly below the drive motor.
Further, the transmission belt is suspended, and includes a plurality of subordinate pulleys that regulate the moving direction of the transmission belt, and the transmission belt is bent at an obtuse angle by two subordinate pulleys closest to the left and right of the drive pulley, and the transmission belt is suspended on the drive pulley. It is desirable that the

As described above, according to the present invention, in order to move the sliding door in the sliding direction, the transmission belt arranged along the width of the door opening is extended to the front of the door opening, and in order to rotate the transmission belt. A drive pulley and a drive motor are arranged in front of the door opening.
As a result, the drive motor can be placed under the front seat of the vehicle in the longitudinal direction of the vehicle, and the battery device, which is the power source of the vehicle, can be placed under the feet of the rear seat occupant without interfering with the drive motor. I can do it.
In addition, since the drive pulley is not placed inside the door pocket, the dust inside the door pocket does not directly adhere to the drive pulley, and even if the dust inside the door pocket is discharged from the opening of the door pocket, the drive pulley will not move. Since it falls downward before reaching the pulley, it is possible to prevent it from adhering to the drive pulley.
In addition, since the transmission belt is driven by the rotation of the drive pulley, there is no need to bend the transmission belt, and drive efficiency can be maintained even when the drive motor has low output, and the belt length is longer than before. It can also maintain durability.

According to the present invention, in a hybrid vehicle or the like that uses a battery as a drive source, the location of the drive motor for moving the sliding door can be prevented from interfering with the location area of the battery device that is the power source of the vehicle. It is possible to provide a sliding door opening/closing device that enables prevention of abnormal noise due to adhesion of dirt and dust, drive of a motor at low output, and improvement of durability of a transmission belt.

FIG. 1 is a perspective view of a hybrid vehicle equipped with a sliding door seen from the rear. FIG. 2 is a plan cross-sectional view of the vicinity of the lower part (rocker panel) of the door opening. FIG. 3 is a cross-sectional view taken along the line AA in FIG. 2 (cross-sectional view in the vehicle width direction). FIG. 4 is a sectional view taken along the line BB in FIG. 2 (a sectional view in the longitudinal direction of the vehicle). FIG. 5 is a perspective view of the opening/closing device according to the present invention. FIG. 6 is a partially enlarged schematic diagram (cross-sectional view) of the opening/closing device according to the present invention. FIG. 7 is a perspective view of a conventional vehicle sliding door opening/closing device. FIG. 8 is a plan cross-sectional view of a configuration in which the door opening/closing unit is housed in the rocker panel and the motor is arranged on the floor. FIG. 9 is a sectional view taken along the line AA in FIG. 8. FIG. 10 is a sectional view taken along the line BB in FIG.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a sliding door opening/closing device according to the present invention will be described based on the drawings. FIG. 1 is a perspective view of a hybrid vehicle equipped with a sliding door 51 viewed from the rear, showing a state in which the sliding door 51 provided on the rear seat side is opened. The sliding door opening/closing device according to the embodiment of the present invention is installed in the vehicle body 50 in the vicinity of the lower part 53 of the door opening 52 (the position surrounded by the chain line) that is opened and closed by the rear sliding door 51 in the longitudinal direction of the vehicle. installed along the line.

As shown in FIG. 1, the vehicle body 50 is provided with an upper guide rail 55, a lower guide rail 56, and a center guide rail 57 that guide the sliding door 51 in the sliding direction. The upper guide rail 55 is provided near the top of the door opening 52 of the vehicle body 50, and the lower guide rail 56 is provided near the bottom of the door opening 52. Further, the center guide rail 57 is provided near the center in the height direction at the rear of the door opening 52.

The lower guide rail 56 is provided along the vehicle longitudinal direction at a predetermined position within a rocker panel 60 that forms the lower body (lower edge) of the door opening 52. Door brackets provided at the upper end, lower end, and center of the sliding door 51 are connected to each guide rail 55, 56, 57 so as to be able to roll along each guide rail 55, 56, 57. has been done. This allows the sliding door 51 to slide along each guide rail 55, 56, 57.

2 is a plan sectional view of the vicinity of the lower edge (rocker panel 60) of the door opening 52, FIG. 3 is a sectional view taken along the line AA in FIG. is a cross-sectional view taken along the line BB in FIG. 2 (a cross-sectional view in the longitudinal direction of the vehicle).
As shown in FIG. 3, the rocker panel 60 includes a rocker inner 61 arranged on the inside in the vehicle width direction, a rocker outer 62 arranged on the outer side in the vehicle width direction than the rocker inner 61, and a rocker outer 62 arranged on the outer side in the vehicle width direction than the rocker outer 62. , and a side outer 63 exposed at the lower part of the opening 52 are fitted together from the left and right directions to form a hollow shape. The lower guide rail 56 is fixed to the ceiling surface of the door pocket 2, which will be described later.

The opening/closing device 1 according to the present invention is housed within the rocker panel 60. An elongated opening 60a extending in the longitudinal direction of the vehicle is provided on the outer side surface of the rocker panel 60 in the vehicle width direction. are connected (not shown). The length of the elongated opening 60a is approximately the same as the sliding range of the sliding door 51.

Further, inside the rocker panel 60, a door pocket 2, which is formed to be elongated along the rocker panel 60 in the longitudinal direction of the vehicle and constitutes a part of the opening/closing device 1, is accommodated.
As shown in FIG. 2, the opening/closing device 1 includes the door pocket 2, a transmission belt 3 housed in the door pocket 2 and arranged along a lower guide rail 56, and the transmission belt 3 suspended from the transmission belt 3. A plurality of dependent pulleys 4 are rotatably provided so as to guide (regulate) the moving direction of the pulleys 4. The door pocket 2 accommodates the power transmission belt 3 at least along the width of the door opening 52.

An elongated opening 2a is formed on the outer side surface of the door pocket 2 in the vehicle width direction to match the elongated opening 60a of the rocker panel 60, and as shown in FIG. 2, as the transmission belt 3 moves (rotates), A door bracket 5 fixed to the belt is movable. The door bracket 5 is connected to a sliding door 51 and a lower guide rail 56, and the sliding door 51 slides by moving along the lower guide rail 56 as the transmission belt 3 moves.

FIG. 5 shows a perspective view of the opening/closing device 1 according to the present invention. An opening 2b is formed in the front side surface of the door pocket 2. The opening/closing device 1 according to the present invention includes a drive pulley 6 (see FIGS. 2 to 4) on which the transmission belt 3 is suspended, and a drive motor 7 that is provided directly above the drive pulley 6 and rotates the drive pulley 6. Equipped with The drive pulley 6 and the drive motor 7 are coaxially connected by a rotating shaft 8.
Further, as shown in FIGS. 2 and 4, the drive pulley 6 and the drive motor 7 are arranged apart from the door pocket 2 and in front of the door pocket 2, so that a part of the transmission belt 3 housed in the door pocket 2 is placed in front of the door pocket 2. It is inserted through the opening 2b, pulled out to the front of the door pocket 2, and suspended on the drive pulley 6 in front of the door pocket 2.

As shown in FIG. 4, in the sliding door opening/closing device 1 configured as described above, the front end of the door pocket 2 (vehicle front side direction) is arranged near the front end of the door opening 52, and the front end of the door pocket 2 is arranged near the front end of the door opening 52. A drive pulley 6 and a drive motor 7 are arranged under the front seat 10 of the vehicle. That is, since the drive motor 7 is not disposed under the feet of the rear seat occupant, a wide area for disposing the battery device 30 is secured.

Further, since the drive pulley 6 and the drive motor 7 are arranged in front of the door pocket 2, and the drive pulley 6 is not housed inside the door pocket 2 as in the conventional case, the dust and dirt accumulated in the door pocket 2 will be removed from the drive pulley 6. As schematically shown in FIG. 6, even if dust 80 is discharged from the opening 2b, it will fall before it reaches the drive pulley 6 to prevent it from adhering to the drive pulley 6. can do.

In addition, since the opening 2b is formed in the door pocket 2, the transmission belt 3 is pulled out from the opening 2b, and the drive pulley 6 is placed in front of the door pocket 2, the length of the door pocket 2 is not changed from the conventional one. Increase in weight and cost can be suppressed.

Further, conventionally (the configuration shown in FIG. 8), the transmission belt 201 is arranged along the width of the door opening, and it is necessary to engage the transmission belt 201 with the drive pulley 202 arranged within the width. In order to drive the transmission belt 201 by the rotation of the drive pulley 202, subordinate pulleys 204A and 204B are arranged on the left and right sides of the drive pulley 202, and the transmission belt 201 suspended on the drive pulley 202 is placed at approximately right angles on both the left and right sides of the drive pulley 202. It needed to be bent.
However, according to the configuration of the present invention (the configuration shown in FIG. 2), the drive pulley 6 is disposed ahead of the door opening 52 (lower guide rail 56) in the longitudinal direction of the vehicle. There is no need to greatly bend the transmission belt 3 by the dependent pulleys 4A, 4B. That is, since the transmission belt 3 bent at an obtuse angle may be suspended from the drive pulley 6 by the dependent pulleys 4A, 4B, there is A straight portion 3a of the power transmission belt 3 is formed.
Thereby, drive efficiency can be maintained even if the drive motor 7 has a low output, and durability can be maintained even if the belt length becomes longer than before.

As described above, according to the embodiment of the present invention, in order to move the sliding door in the sliding direction, the transmission belt arranged along the width of the door opening is extended to the front of the door opening, and the transmission belt is extended to the front of the door opening. A drive pulley 6 and a drive motor 7 for rotating the belt are arranged in front of the door opening.
As a result, the drive motor 7 can be placed under the front seat of the vehicle in the longitudinal direction of the vehicle, and the battery device, which is the power source of the vehicle, can be placed under the feet of the rear seat occupant without interfering with the drive motor 7. can do.

In addition, since the drive pulley 6 is not arranged inside the door pocket 2, the dust and dust inside the door pocket 2 will not directly adhere to the drive pulley 6, and the dust and dirt inside the door pocket 2 will be discharged outside from the opening 2b. Even if it were, it would fall downward before reaching the drive pulley 6, so it is possible to prevent it from adhering to the drive pulley 6.
In addition, since the transmission belt 3 is driven by the rotation of the drive pulley 6, there is no need to bend the transmission belt 3 significantly, and drive efficiency can be maintained even if the drive motor 7 has a low output. Durability can be maintained even if the length becomes long.

In the above-described embodiment, the door pocket 2 that accommodates the power transmission belt 3 is provided separately from the rocker panel 60, but the present invention is not limited to this configuration. , the door pocket 2 may be formed integrally with the rocker panel 60.

Further, in the embodiment described above, the drive pulley 6 and the drive motor 7 are arranged under the front seat in the longitudinal direction of the vehicle, but the present invention is not limited to this arrangement. It does not have to be under the front seat as long as it can be placed in front of the door pocket 2 which is arranged in accordance with the width of the door opening 52.

Further, in the embodiment described above, the drive pulley 6 was arranged to be rotatable on the same axis as the rotation shaft 8 of the drive motor 7, but the present invention is limited to this configuration. However, as long as the drive pulley 6 rotates in conjunction with the rotation of the drive motor 7, they do not need to be coaxial.
Further, in the previous embodiment, an example of a hybrid vehicle was shown, but there is no restriction in any way as long as the vehicle uses a battery as a drive source, and for example, an electric vehicle (EV) or the like may be used.

1 Sliding door opening/closing device 2 Door pocket 2b Opening 3 Transmission belt 4 Dependent pulley 5 Door bracket 6 Drive pulley 7 Drive motor 8 Rotating shaft 10 Seat 50 Vehicle 51 Sliding door 52 Door opening 56 Lower guide rail 60 Rocker panel 60a Opening

Claims (4)

A sliding door opening/closing device for opening and closing a door opening in a vehicle body using a rear sliding door of an automobile,
a transmission belt that is housed in a rocker panel that forms a lower edge of the door opening, is disposed along the sliding direction of the sliding door, and is configured to move the sliding door; a door pocket that is elongated and accommodates the transmission belt over at least the width of the door opening; a drive pulley that engages with the transmission belt and moves the transmission belt; and a drive pulley that rotates the drive pulley. Equipped with a drive motor to drive the
An opening through which the transmission belt is inserted is formed on a front side surface of the door pocket in the longitudinal direction of the vehicle;
The drive pulley and the drive motor are arranged in front of the door pocket in the longitudinal direction of the vehicle, apart from the door pocket, and the transmission belt inserted through the opening is suspended by the drive pulley. Door opening/closing device. 2. The sliding door opening/closing device according to claim 1, wherein the drive motor is disposed below a front seat in the longitudinal direction of the vehicle. The sliding door according to claim 1 or 2, wherein the drive pulley is rotatably provided coaxially with the rotation axis of the drive motor, and is arranged directly below the drive motor. switchgear. The transmission belt is suspended, and includes a plurality of dependent pulleys that regulate the moving direction of the transmission belt,
The sliding door according to any one of claims 1 to 3, wherein the transmission belt bent at an obtuse angle by two subordinate pulleys immediately on the right and left of the drive pulley is suspended on the drive pulley. Switchgear.

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