JP2014119093A - Driving force transmission system and sunshade device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a driving force transmission system that enables two output shafts to be alternately and independently driven in a normally/reversely rotatable manner by one motor.SOLUTION: A driving force transmission system, which can rotatively drive a plurality of output shafts by a driving force of one motor, includes: a first output shaft 2 that is normally/reversely rotated on the basis of a motor operation; second and third output shafts 3 and 4 that can be normally/reversely rotated on the basis of normal/reverse rotation of the first output shaft 2; and selection devices 11, 13, 14, 15 and 16 that transmit the normal/reverse rotation of the first output shaft 2 by selecting either of the second and third output shafts 3 and 4.

Description

  The present invention relates to a vehicle sunshade device that opens and closes a plurality of sunshade members.

  As one type of sunroof device provided on the ceiling of a vehicle, a first shade member formed of a transparent glass plate material and a second shade member formed of a synthetic resin having a light shielding property or the like There is one that is slidable so as to open and close the opening provided in.

  A state in which the first and second shade members are opened and outside air is introduced into the vehicle; a state in which only the first shade member is closed and outside air is blocked; Either a state in which the shade material is closed to block outside air and outside light can be selected.

As one type of sunroof device as described above, an electric sunroof device that can open and close the first and second shade members with the driving force of a motor has been put into practical use.
Patent Document 1 discloses a sunroof driving device in which a glass panel and a sunshade can be opened and closed by a driving device using different motors.

  Patent Documents 2 to 5 disclose sunroof devices in which a sunroof and a sunshade can be opened and closed by a common motor.

Japanese Utility Model Publication No. 60-18926 Japanese Utility Model Publication No. 4-11121 Japanese Utility Model Publication No. 4-101719 Japanese Utility Model Publication No. 6-853 JP-A-2-293219

  In the electric sunroof device disclosed in Patent Document 1, two motors are required to open and close the glass panel and the sunshade, so that wiring to the motors becomes complicated and the cost of parts increases. There is.

  In the sunroof device disclosed in Patent Documents 2 to 5, the sunroof and the sunshade can be opened and closed with one motor. However, there is a problem that the sunroof and the sunshade cannot be opened and closed independently, for example, the operation of closing only the sunshade needs to be performed manually.

  An object of the present invention is to provide a driving force transmission device in which two output shafts can be driven independently and alternately in the forward and reverse directions by a single motor.

  A driving force transmission device that solves the above problem is a driving force transmission device that is capable of rotationally driving a plurality of output shafts with the driving force of a single motor. An output shaft, second and third output shafts that can rotate forward and backward based on forward and reverse rotations of the first output shaft, and forward and reverse rotations of the first output shaft. And a selection device for selecting and transmitting any of the three output shafts.

According to this configuration, one of the second and third output shafts is rotated forward and backward based on forward and reverse rotations of the first output shaft rotated by a single motor.
With respect to the driving force transmission device, the selection device is configured to perform forward rotation of the first output shaft from a neutral position where rotation of the first output shaft is not transmitted to any of the second and third output shafts. Based on the first gear mechanism that enables the rotation of the first output shaft to be transmitted to the second output shaft, and on the basis of the reverse rotation of the first output shaft from the neutral position. And a second gear mechanism that enables transmission of the rotation of the output shaft to the third output shaft.

  According to this configuration, the rotation of the first output shaft is transmitted to the second output shaft via the first gear mechanism based on the normal rotation of the first output shaft from the neutral position, and the neutral position Then, based on the reverse rotation of the first output shaft, the rotation of the first output shaft is transmitted to the third output shaft via the second gear mechanism.

  With respect to the driving force transmission device, the first and second gear mechanisms are supported by the first output shaft that is rotatably supported by a housing and is rotatably supported by the plate. And the first and second idle gears meshing with the output gear that rotates integrally with the first output shaft, and the plate and the output gear are interposed between the plate and the plate with a constant frictional force. A friction device that rotates in the rotation direction of the output gear via the first output shaft, and a friction gear that is integrally attached to the second output shaft and meshes with the first idle gear based on the rotation of the plate in the forward rotation direction. A first primary transmission gear, a second primary transmission gear that is integrally attached to the third output shaft and meshes with the second idle gear based on the rotation of the plate in the reverse rotation direction; The idle gear A first holding that holds the first idle gear in mesh with the first primary transmission gear until the second output shaft reaches a preset rotation angle when meshed with the first primary transmission gear. And when the second idle gear meshes with the second primary transmission gear, the second idle gear is in the second primary transmission gear until the third output shaft reaches a preset rotation angle. It is preferable to include a second holding device that holds in a state of meshing with each other.

  According to this configuration, when the first idle gear meshes with the first primary transmission gear based on the normal rotation of the first output shaft, the first holding shaft causes the first output shaft to rotate forward and backward. The state is transmitted to the second output shaft. When the second idle gear meshes with the second primary transmission gear based on the reverse rotation of the first output shaft, the second holding device causes forward / reverse rotation of the first output shaft to the third output shaft. It becomes a state to be transmitted.

  With respect to the driving force transmission device, the first holding device may be configured such that when the first output shaft is reversed in a state where the second output shaft reaches a preset rotation angle, the first idle device A cam device for releasing the meshing between the gear and the first primary transmission gear, wherein the second holding device is configured to output the first output in a state where the third output shaft reaches a preset rotation angle. It is preferable to provide a cam device for releasing the engagement between the second idle gear and the second primary transmission gear when the shaft is rotated forward.

  According to this configuration, when the first output shaft is reversed while the second output shaft reaches a preset rotation angle, the first idle gear and the first primary transmission gear mesh with each other. Is released, and when the first output shaft is rotated forward with the third output shaft reaching a preset rotation angle, the engagement between the second idle gear and the second primary transmission gear is established. Canceled.

  Regarding the driving force transmission device, the cam device is based on a pin provided on the plate, a differential gear rotated based on rotation of the second output shaft, and rotation of the third output shaft. A differential gear that is rotated; an annular portion that is provided on a side surface of the differential gear, and that holds the pin at a position where the idle gear meshes with the primary transmission gear; And an opening that allows the pin to move to a position where the meshing of the primary transmission gear is released.

  According to this configuration, when the pin is held in the annular portion, the idle gear is held at a position where it engages with the primary transmission gear, and the rotation direction of the first output shaft is switched with the pin reaching the opening. Then, the meshing between the idle gear and the primary transmission gear is released.

  A vehicle sunshade device that solves the above problems is the vehicle sunshade device that is capable of opening and closing the first and second sunshade members via a plurality of output shafts that are rotated by the driving force of a single motor. A first output shaft that is rotated forward and backward based on the operation of the first output shaft, and a forward and reverse rotation based on the forward and reverse rotation of the first output shaft, so that the first and second sunshade members can be opened and closed respectively. The second and third output shafts, and a selection device that selects and transmits the forward / reverse rotation of the first output shaft by selecting one of the second and third output shafts.

According to this configuration, one of the first and second sunshade members is opened and closed based on forward and reverse rotation of the first output shaft that is rotated by one motor.
With regard to the vehicle sunshade device, the selection device is configured to perform forward rotation of the first output shaft from a neutral position where rotation of the first output shaft is not transmitted to any of the second and third output shafts. Based on the first gear mechanism that enables the rotation of the first output shaft to be transmitted to the second output shaft, and on the basis of the reverse rotation of the first output shaft from the neutral position. And a second gear mechanism that enables transmission of the rotation of the output shaft to the third output shaft.

  According to this configuration, the rotation of the first output shaft is transmitted to the second output shaft via the first gear mechanism based on the normal rotation of the first output shaft from the neutral position, and the neutral position Then, based on the reverse rotation of the first output shaft, the rotation of the first output shaft is transmitted to the third output shaft via the second gear mechanism.

  In the vehicle sunshade device, the first and second gear mechanisms are supported by the first output shaft rotatably supported by the housing and rotatably supported by the plate. And the first and second idle gears meshing with the output gear that rotates integrally with the first output shaft, and the plate and the output gear are interposed between the plate and the plate with a constant frictional force. A friction device that rotates in the rotation direction of the output gear via the first output shaft, and a friction gear that is integrally attached to the second output shaft and meshes with the first idle gear based on the rotation of the plate in the forward rotation direction. A first primary transmission gear, a second primary transmission gear that is integrally attached to the third output shaft and meshes with the second idle gear based on the rotation of the plate in the reverse rotation direction; The Aid When the gear meshes with the first primary transmission gear, the first idle gear is held in mesh with the first primary transmission gear until the second output shaft reaches a preset rotation angle. When the second idle gear meshes with the second primary transmission gear, the second idle gear is in the second primary until the third output shaft reaches a preset rotation angle. It is preferable to include a second holding device that holds the transmission gear in a meshed state.

  According to this configuration, when the first idle gear meshes with the first primary transmission gear based on the normal rotation of the first output shaft, the first holding shaft causes the first output shaft to rotate forward and backward. The state is transmitted to the second output shaft. When the second idle gear meshes with the second primary transmission gear based on the reverse rotation of the first output shaft, the second holding device causes forward / reverse rotation of the first output shaft to the third output shaft. It becomes a state to be transmitted.

  With respect to the vehicle sunshade device, the first holding device is configured such that when the first output shaft is reversed while the second output shaft reaches a preset rotation angle, the first idle device A cam device for releasing the meshing between the gear and the first primary transmission gear, wherein the second holding device is configured to output the first output in a state where the third output shaft reaches a preset rotation angle. It is preferable to provide a cam device for releasing the engagement between the second idle gear and the second primary transmission gear when the shaft is rotated forward.

  According to this configuration, when the first output shaft is reversed while the second output shaft reaches a preset rotation angle, the first idle gear and the first primary transmission gear mesh with each other. Is released, and when the first output shaft is rotated forward with the third output shaft reaching a preset rotation angle, the engagement between the second idle gear and the second primary transmission gear is established. Canceled.

  In the vehicle sunshade device, the cam device is based on a pin provided on the plate, a differential gear rotated based on rotation of the second output shaft, and rotation of the third output shaft. A differential gear that is rotated; an annular portion that is provided on a side surface of the differential gear, and that holds the pin at a position where the idle gear meshes with the primary transmission gear; And an opening that allows the pin to move to a position where the meshing of the primary transmission gear is released.

  According to this configuration, when the pin is held in the annular portion, the idle gear is held at a position where it engages with the primary transmission gear, and the rotation direction of the first output shaft is switched with the pin reaching the opening. Then, the meshing between the idle gear and the primary transmission gear is released.

  In the vehicle sunshade device, a reduction gear is provided between the second output shaft and the differential gear for moving the pin to the opening when the first sunshade member is moved to the open position. Preferably, a reduction gear is provided between the third output shaft and the differential gear for moving the pin to the opening when the second sunshade member is moved to the closed position.

According to this configuration, the pin is moved to the opening when the first sunshade member is moved to the open position, and the pin is moved to the opening when the second sunshade member is moved to the closed position.
In the vehicle sunshade device, the first sunshade member is preferably a sunshade having light shielding properties, and the second sunshade member is preferably a sunroof formed by a glass plate having translucency.

According to this configuration, the sunshade and the sunroof are opened and closed independently based on the rotation of the first output shaft.
In the vehicle sunshade device, the first sunshade member is preferably a light-shielding curtain, and the second sunshade member is preferably a semi-light-shielding curtain having translucency.

  According to this configuration, the vehicle light-shielding curtain and the semi-light-shielding curtain are independently opened and closed based on the rotation of the first output shaft.

  According to the present invention, the two output shafts of the driving force transmission device can be driven to rotate forward and backward alternately and independently by a single motor.

It is a front view which shows a driving force transmission apparatus. It is the YY sectional view taken on the line in FIG. It is the XX sectional view taken on the line in FIG. It is a perspective view which shows a secondary transmission gear. It is a perspective view which shows a differential gearwheel. It is a front view which shows operation | movement of a driving force transmission apparatus. It is a front view which shows operation | movement of a driving force transmission apparatus. It is a front view which shows operation | movement of a driving force transmission apparatus. It is a front view which shows operation | movement of a driving force transmission apparatus. It is a front view which shows operation | movement of a driving force transmission apparatus. It is a front view which shows operation | movement of a driving force transmission apparatus. (A)-(c) is a perspective view which shows operation | movement of the sunroof based on operation | movement of a driving force transmission apparatus. (A)-(c) is a perspective view which shows operation | movement of the vehicle-mounted curtain based on operation | movement of a driving force transmission apparatus.

  Hereinafter, an embodiment of a sunroof driving device will be described with reference to the drawings. The sunroof driving device shown in FIGS. 1 to 3 includes a first output shaft 2 in the housing 1 and second and third output shafts 3 and 4 rotating on both sides of the first output shaft 2 as an intermediate. Supported as possible.

The first output shaft 2 is rotatably supported by bearing metals 5 and 6 attached to the housing 1 at the base end portion and the intermediate portion.
A worm wheel 7 is attached to the base end portion of the first output shaft 2, and a worm (not shown) attached to the output shaft of the motor is engaged with the worm wheel 7 so that the output shaft of the motor is engaged. The first output shaft 2 is rotated forward and backward based on forward and reverse rotation.

  A reduced diameter portion 9 is formed at the distal end portion of the first output shaft 2 via a step 8, and an output gear 10 is fitted and fixed to the distal end of the reduced diameter portion 9. Therefore, the output gear 10 rotates integrally with the first output shaft 2.

  A plate 11 is supported on the proximal end side of the reduced diameter portion 9 of the first output shaft 2 so as to be relatively rotatable. As shown in FIG. 1, the plate 11 is formed in a deformed polygonal shape substantially in the form of a home base, and the first output shaft 2 is inserted into a narrower lower portion thereof so as to be relatively rotatable.

  A wave washer 12 is disposed between the output gear 10 and the plate 11, and the plate 11 is pressed against the step 8 by the urging force of the wave washer 12 having the side surface of the output gear 10 as a fulcrum.

  Therefore, in a state where a predetermined frictional force is ensured between the plate 11 and the first output shaft 2 and the rotation of the plate 11 is not hindered, the plate 11 is the same as the first output shaft 2 rotates. It is designed to rotate in the direction.

  The first and second idle gears 13 and 14 are rotatably supported by the plate 11 at the diagonally upper positions on both sides of the output gear 10 and meshed with the output gear 10 respectively.

  A primary transmission gear 15 is fitted to the second output shaft 3 on the side of the first idle gear 13. Similarly, a primary transmission gear 16 is fitted to the third output shaft 4 on the side of the second idle gear 14.

  Then, when the plate 11 is rotated in the direction of arrow A around the first output shaft 2 based on the positive rotation of the first output shaft 2, the first idle gear 13 becomes the primary transmission gear 15. The rotation of the first output shaft 2 is transmitted to the second output shaft 3 by meshing. Further, when the plate 11 is rotated in the arrow B direction based on the reverse rotation of the first output shaft 2, the second idle gear 14 meshes with the primary transmission gear 16 and the rotation of the first output shaft 2. Is transmitted to the third output shaft 4.

  A secondary transmission gear 17 that rotates integrally with the second output shaft 3 is provided on the base end side of the second output shaft 3, and a third end is provided on the base end side of the third output shaft 4. A secondary transmission gear 18 that rotates integrally with the output shaft 4 is provided.

  As shown in FIGS. 1 and 4, the secondary transmission gears 17 and 18 are provided with two teeth 19 and 20 only on a part of the outer peripheral surface thereof. Above the secondary transmission gears 17 and 18, differential gears 21 and 22 are supported by a support shaft 23 supported by the housing 1 so as to be rotatable and immovable in the axial direction of the support shaft 23.

  The teeth 19 of the secondary transmission gear 17 mesh with the differential gear 21, and the teeth 20 of the secondary transmission gear 18 mesh with the differential gear 22. Accordingly, the differential gears 21 and 22 are rotated at an angle corresponding to one tooth of the differential gears 21 and 22 every time the secondary transmission gears 17 and 18 rotate once.

  As shown in FIG. 3, wave washers 24 are respectively disposed between the differential gears 21 and 22 and the housing 1, and the biasing force of the wave washer 24 causes the differential gears 21 and 22 and the housing 1 to be connected. A predetermined frictional force is secured between them. Accordingly, the differential gears 21 and 22 are rotated only when the teeth 19 and 20 of the secondary transmission gears 17 and 18 are engaged with each other.

As shown in FIGS. 1 and 3, a pin 29 is formed on the upper portion of the plate 11 so as to project toward the differential gears 21 and 22 from the center in the left-right direction in FIG. 1.
As shown in FIG. 5, a cam-shaped portion 25 is integrally formed on the outer peripheral portion of the differential gears 21 and 22 on the side of the plate 11 side. The cam-shaped portion 25 includes an annular portion 26 provided along the outer peripheral portion of the differential gears 21, 22, an opening portion 27 that communicates the inside and the outside of the annular portion 26, and a cam surface provided at one end of the opening portion 27. 28 are provided. The cam surface 28 is formed in a direction along the center line of the differential gears 21 and 22 and has a width wider than the width of the annular portion 26.

  As shown in FIGS. 7 and 8, the relative position between the plate 11 and the differential gears 21 and 22 is such that when the plate 11 is rotated, the tip of the pin 29 enters the opening 27 and the cam surface 28 is moved. It is set to a position where it can enter the inside of the annular portion 26 from the opening 27 through the state of contacting with the ring.

  As shown in FIG. 2, the distal ends of the second and third output shafts 3 and 4 extend to the outside of the housing 1, and drive gears 30 and 31 are attached to the distal ends thereof. Then, the sunshade is driven via the drive gear 30 based on the rotation of the second output shaft 3, and the sunroof is driven via the drive gear 31 based on the rotation of the third output shaft 4.

Next, the operation of the sunroof driving device configured as described above will be described.
As shown in FIG. 6, when the plate 11 is positioned in the middle of the differential gears 21 and 22 and is not rotated to either side of the differential gears 21 and 22, the pin 29 is connected to the differential gears 21 and 22. 22 is located.

  From this state, when the first output shaft 2 is rotated in the direction of the arrow C, for example, by the operation of the motor, the first and second idle gears 13 and 14 meshing with the output gear 10 are rotated. 11 is rotated in the direction of arrow A about the first output shaft 2.

  Then, as shown in FIGS. 7 and 8, the plate 11 begins to tilt, and the pin 29 enters the opening 27 of the cam-shaped portion 25 while abutting against the cam surface 28 of the differential gear 21. When the pin 29 enters the annular portion 26, the first idle gear 13 is engaged with the primary transmission gear 15.

  Then, as shown in FIG. 9, the second output shaft 3 and the primary transmission gear 15 are rotated in the direction of arrow D, the secondary transmission gear 17 is rotated in the same direction, and the secondary transmission gear 17 is rotated once. Each time, the differential gear 21 is rotated by one tooth in the direction of arrow E.

  In this state, as shown in FIGS. 10 and 11, since the pin 29 is held in the annular portion 26, even if the first output shaft 2 rotates in the reverse direction, that is, in the direction of the arrow F, the plate 11 The rotation in the same direction is prevented, and the rotation of the first output shaft 2 is transmitted to the second output shaft 3. Therefore, forward / reverse rotation of the first output shaft 2 is transmitted to the second output shaft 3.

  When the first output shaft 2 is rotated in the direction of arrow F in a state where the differential gear 21 is rotated to a position where the pin 29 can enter the opening 27, the plate 11 is moved in the same direction (FIG. 1). And the pin 29 is disengaged from the cam-shaped portion 25 of the differential gear 21.

  From this state, when the first output shaft 2 is further rotated in the direction of arrow F, the plate 11 is rotated in the same direction and the pin 29 is moved from the opening 27 of the cam-shaped portion 25 of the differential gear 22 to the annular portion. Enter 26.

  Then, the third output shaft 4 is rotated in the direction of arrow G shown in FIG. 6 and the secondary transmission gear 18 is rotated in the same direction. Each time the secondary transmission gear 18 is rotated once, the differential gear 22 is rotated. It is rotated by one tooth in the direction of arrow H.

  In this state, since the pin 29 is held in the annular portion 26 of the differential gear 22, even if the first output shaft 2 rotates in the reverse direction, that is, in the direction of the arrow C, the plate 11 rotates in the same direction. The movement is blocked and the rotation of the first output shaft 2 is transmitted to the third output shaft 4. Therefore, forward / reverse rotation of the first output shaft 2 is transmitted to the third output shaft 4.

  When the first output shaft 2 is rotated in the direction of arrow C with the differential gear 22 rotated to a position where the pin 29 can enter the opening 27, the plate 11 rotates in the same direction. As a result, the pin 29 is detached from the cam-shaped portion 25 of the differential gear 22.

  By the operation as described above, in this sunroof drive device, the second and third output shafts 3 and 4 are independently rotated in the forward and reverse directions by the operation of the first output shaft 2 rotated forward and backward by one motor. Can be rotated. Then, when the drive mechanism interposed between the drive gears 30 and 31 of the second and third output shafts 3 and 4 and the sunroof 32 and the sunshade 33 shown in FIG. 12 is set as follows, the sunroof 32 and the sunshade are set. 33 can be opened and closed independently.

  That is, when the plate 11 is positioned in the state shown in FIG. 6, as shown in FIG. 12B, the sunroof 32 of the glass plate is set in the closed state and the sunshade 33 is set in the open state.

Then, when the first output shaft 2 rotates in the direction of the arrow C to reach the state shown in FIGS. 9 and 10, the sunshade 33 can be driven to open and close as shown in FIG.
When the pin 29 is positioned in the annular portion 26 of the differential gear 22 based on the rotation of the first output shaft 2 in the direction of arrow F, the sunroof 32 is opened and closed as shown in FIG. It becomes possible to drive.

In the sunroof driving device configured as described above, the following effects can be obtained.
(1) The sunroof 32 and the sunshade 33 can be opened and closed independently by one motor.
(2) A state in which the sunroof 32 can be opened / closed and a state in which the sunshade 33 can be opened / closed can be automatically switched by forward / reverse rotation of the motor.
(3) It is possible to automatically switch between a state where the sunshade 33 can be opened / closed with the sunroof 32 closed and a state where the sunroof can be opened / closed with the sunshade 33 opened.
(4) The second and third output shafts 3 and 4 can be independently rotated based on the first output shaft 2 rotated forward and backward by one motor.
(5) A state in which the second output shaft 3 can be rotationally driven by an operation of the first output shaft 2 that is driven to rotate forward and backward by one motor, and a state in which the third output shaft 4 can be rotationally driven. Can be switched automatically.
(Second embodiment)
FIG. 13 shows a second embodiment. In this embodiment, the sunroof driving device of the first embodiment is applied to a driving device for an in-vehicle curtain.

In the state shown in FIG. 6, the light-shielding curtain having light-shielding properties is opened, and the lane fabric semi-light-shielding curtain is set to a closed state.
Then, as shown in FIG. 8, when the first idle gear 13 is engaged with the primary transmission gear 15, the light shielding curtain 41 is opened and closed with the semi-light shielding curtain 42 closed as shown in FIG. 13 (c). Can be operated.

  Further, when the second idle gear 14 is engaged with the primary transmission gear 16, the semi-light-shielding curtain 42 can be opened and closed with the light-shielding curtain 41 open as shown in FIG.

Therefore, the light-shielding curtain 41 and the semi-light-shielding curtain 42 can be opened and closed independently by one motor.
You may implement the said embodiment in the following aspects.
A reduction device using multi-stage gears may be disposed between the second and third output shafts 3 and 4 and the differential gears 21 and 22.

  DESCRIPTION OF SYMBOLS 1 ... Housing, 2 ... 1st output shaft, 3 ... 2nd output shaft, 4 ... 3rd output shaft, 10 ... Output gear, 11 ... Selection apparatus (1st gear mechanism, plate), 12 ... Friction Device (wave washer), 13 ... selection device (first gear mechanism, first idle gear), 14 ... selection device (second gear mechanism, second idle gear), 15 ... selection device (first Gear mechanism, first primary transmission gear), 16 ... selection device (second gear mechanism, second primary transmission gear), 21,22 ... cam device (differential gear) 25 ... first and second holding Device (cam-shaped portion), 26 ... first and second holding devices (annular portion), 27 ... first and second holding devices (opening), 29 ... first and second holding devices (pins) 32 ... a second sunshade member (sunroof), 33 ... a first sunshade member (sunshade), 1 ... first sunshade member (curtains), 42 ... second sunshade member (semi-shielding curtains).

Claims (13)

In the driving force transmission device that can rotate and drive a plurality of output shafts with the driving force of one motor,
A first output shaft that rotates forward and backward based on the operation of the motor;
Second and third output shafts capable of forward and reverse rotation based on forward and reverse rotations of the first output shaft;
A driving force transmission device comprising: a selection device configured to select and transmit one of the second and third output shafts for forward / reverse rotation of the first output shaft. The selection device is:
Based on the normal rotation of the first output shaft from a neutral position where the rotation of the first output shaft is not transmitted to any of the second and third output shafts, the first output shaft is rotated. A first gear mechanism capable of transmitting to the second output shaft;
A second gear mechanism capable of transmitting the rotation of the first output shaft to the third output shaft based on the reverse rotation of the first output shaft from the neutral position. The driving force transmission device according to claim 1. The first and second gear mechanisms are
A plate that is rotatably supported by the first output shaft that is rotatably supported by the housing;
First and second idle gears that are rotatably supported by the plate and mesh with output gears that rotate integrally with the first output shaft;
A friction device interposed between the plate and the output gear to rotate the plate in a rotation direction of the output gear via a constant friction force;
A first primary transmission gear that is integrally attached to the second output shaft and meshes with the first idle gear based on the rotation of the plate in the forward rotation direction;
A second primary transmission gear that is integrally attached to the third output shaft and meshes with the second idle gear based on rotation in the reverse direction of the plate;
When the first idle gear meshes with the first primary transmission gear, the first idle gear meshes with the first primary transmission gear until the second output shaft reaches a preset rotation angle. A first holding device to hold on;
When the second idle gear meshes with the second primary transmission gear, the second idle gear meshes with the second primary transmission gear until the third output shaft reaches a preset rotation angle. The driving force transmission device according to claim 2, further comprising a second holding device that holds the second holding device. The first holding device is
A cam for releasing the meshing between the first idle gear and the first primary transmission gear when the first output shaft is reversed while the second output shaft reaches a preset rotation angle. Equipped with equipment,
The second holding device is
When the first output shaft is rotated forward with the third output shaft reaching a preset rotation angle, the engagement between the second idle gear and the second primary transmission gear is released. 4. The driving force transmission device according to claim 3, further comprising a cam device. The cam device is
A pin provided on the plate;
A differential gear rotated based on rotation of the second output shaft;
A differential gear rotated based on rotation of the third output shaft;
An annular portion provided on each side surface of the differential gear, and holding the pin at a position where the idle gear meshes with the primary transmission gear;
The driving force transmission device according to claim 4, further comprising: an opening portion provided in the annular portion, wherein the pin is movable to a position where the engagement between the idle gear and the primary transmission gear is released. In the vehicle sunshade device capable of opening and closing the first and second sunshade members via a plurality of output shafts rotated by the driving force of one motor,
A first output shaft that rotates forward and backward based on the operation of the motor;
Second and third output shafts that are rotated forward and backward based on forward and reverse rotations of the first output shaft, and capable of opening and closing the first and second sunshade members, respectively.
A vehicle sunshade device comprising: a selection device that selectively transmits one of the second and third output shafts to transmit the forward / reverse rotation of the first output shaft. The selection device is:
Based on the normal rotation of the first output shaft from a neutral position where the rotation of the first output shaft is not transmitted to any of the second and third output shafts, the first output shaft is rotated. A first gear mechanism capable of transmitting to the second output shaft;
A second gear mechanism capable of transmitting the rotation of the first output shaft to the third output shaft based on the reverse rotation of the first output shaft from the neutral position. The vehicle sunshade device according to claim 6. The first and second gear mechanisms are
A plate that is rotatably supported by the first output shaft that is rotatably supported by the housing;
First and second idle gears that are rotatably supported by the plate and mesh with output gears that rotate integrally with the first output shaft;
A friction device interposed between the plate and the output gear to rotate the plate in a rotation direction of the output gear via a constant friction force;
A first primary transmission gear that is integrally attached to the second output shaft and meshes with the first idle gear based on the rotation of the plate in the forward rotation direction;
A second primary transmission gear that is integrally attached to the third output shaft and meshes with the second idle gear based on rotation in the reverse direction of the plate;
When the first idle gear meshes with the first primary transmission gear, the first idle gear meshes with the first primary transmission gear until the second output shaft reaches a preset rotation angle. A first holding device to hold on;
When the second idle gear meshes with the second primary transmission gear, the second idle gear meshes with the second primary transmission gear until the third output shaft reaches a preset rotation angle. The vehicle sunshade device according to claim 7, further comprising: a second holding device that holds the second sunscreen. The first holding device is
A cam for releasing the meshing between the first idle gear and the first primary transmission gear when the first output shaft is reversed while the second output shaft reaches a preset rotation angle. Equipped with equipment,
The second holding device is
When the first output shaft is rotated forward with the third output shaft reaching a preset rotation angle, the engagement between the second idle gear and the second primary transmission gear is released. The vehicle sunshade device according to claim 8, further comprising a cam device. The cam device is
A pin provided on the plate;
A differential gear rotated based on rotation of the second output shaft;
A differential gear rotated based on rotation of the third output shaft;
An annular portion provided on each side surface of the differential gear, and holding the pin at a position where the idle gear meshes with the primary transmission gear;
The vehicle sunshade device according to claim 9, further comprising: an opening provided in the annular portion, the opening allowing the pin to move to a position where the engagement between the idle gear and the primary transmission gear is released.   A reduction gear is provided between the second output shaft and the differential gear to move the pin to the opening when the first sunshade member is moved to the open position, and the third output shaft. 11. The vehicle for a vehicle according to claim 10, further comprising a reduction gear that moves the pin to the opening when the second sunshade member is moved to a closed position. Sunshade device.   The first sunshade member is a sunshade having a light-shielding property, and the second sunshade member is a sunroof formed of a glass plate having a light-transmitting property. A vehicle sunshade device according to claim 1.   The vehicle according to any one of claims 6 to 11, wherein the first sunshade member is a light-shielding curtain, and the second sunshade member is a semi-light-shielding curtain having translucency. Sunshade device.