JP2010221959A - Vehicular sunshade device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular sunshade device capable of opening/closing a sun-shading member by manual operation and electric-driven operation and having a simpler constitution than ever. <P>SOLUTION: A clutch member 80 executes the co-rotation of an output pinion 74 when it is pressed against an inner circumferential surface of the output pinion 74 by a projecting face 71a when rotating a worm wheel. Thus, a sunshade panel can be opened/closed by the driving force of a motor. On the other hand, the clutch member 80 slides on the inner circumferential surface of the output pinion 74 to permit the relative rotation of the worm wheel and the output pinion 74 when rotating the output pinion 74. Thus, the sunshade panel can be opened/closed by a slight manual operational force. The manual and electric-driven opening/closing operations can be executed by a simple constitution in which the clutch member 80 is interposed between the worm wheel and the output pinion 74. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a vehicle sunshade device that is electrically and manually opened and closed.

  Conventionally, for example, Patent Document 1 discloses a vehicle sunshade device that adjusts the amount of light that passes through a transparent glass fixed panel or movable panel provided in an opening formed in a roof or the like and is taken into a vehicle interior. Things are known. In this vehicle sunshade device, when the pinion (48) is rotationally driven by the drive source (41), the transmission member (68) connected to the pinion moves along the guide rail (11), and the transmission member The light-shielding member (24) connected through the stay (27) is opened and closed. That is, the light shielding member can be opened and closed electrically by, for example, a switch operation.

  This vehicle sunshade device is configured to allow manual opening / closing operation of the light shielding member. Specifically, a clutch mechanism is provided between the drive source and the transmission member. The clutch mechanism includes a substantially cylindrical clutch case integrally provided with the pinion and having inner teeth on an inner peripheral wall, and teeth that are supported by a clutch shaft connected to a driving source and engageable with the inner teeth. A clutch lever. The clutch lever is separated from the inner teeth of the clutch case when the driving source is stopped, and engages with the inner teeth by the centrifugal force generated when the driving source (clutch shaft) rotates to transmit the driving force to the clutch case. To do. As a result, the pinion that rotates integrally with the clutch case transmits the driving force to the transmission member, so that the light-shielding member can be moved electrically. On the other hand, when the operator manually moves the light shielding member, the clutch case rotates via the transmission member and the pinion, but the clutch lever does not mesh with the inner teeth of the clutch case, and the motor (clutch shaft) Does not transmit driving force. As a result, it is possible to open and close the light shielding member by manual operation without applying an excessive load on the motor, the light shielding member, and the like.

Japanese Utility Model Publication No. 7-18931

  By the way, in the vehicle sunshade device described in Patent Document 1, a clutch mechanism for manually opening and closing the light shielding member is configured by a clutch lever, a clutch case, and the like, and the structure is inevitably complicated.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a vehicle sunshade device that can open and close the light shielding member by manual and electric operation and has a simpler configuration. .

Hereinafter, means for achieving the above-described object and its operation and effects will be described.
According to the first aspect of the present invention, there is provided a rotation transmission member coupled to a drive source and driven to rotate by the drive source, a transmission member coupled to the rotation transmission member and driven to move, and coupled to the transmission member. In the vehicular sunshade device including the light shielding member that is driven to open and close, the rotation transmission member is disposed coaxially with the input rotation body that is coupled to the drive source, and is coupled to the transmission member. An output rotator, and a sliding body disposed on a control surface provided between the opposing surfaces in the radial direction of the input rotator and the output rotator and provided on the facing surface of the input rotator. The sliding body is pressed by the control surface along with the rotation of the input rotating body, and rotates the output rotating body by pressing the opposing surface of the output rotating body. Accompanying the output times And as its gist that slides the opposing surfaces of the body to permit relative rotation of the input rotary member and the output rotary member.

  According to this configuration, the sliding body is pressed against the control surface of the input rotating body and presses the opposing surface of the output rotating body when the input rotating body is rotated by the rotational drive of the drive source. Then, the output rotating body is rotated. Therefore, the driving force of the drive source can be transmitted to the light shielding member via the rotation transmission member and the transmission member, and the light shielding member can be driven to open and close. On the other hand, the sliding body allows relative rotation of the input rotating body and the output rotating body by sliding on the facing surface of the output rotating body in rotation of the output rotating body by movement of the transmission member. . Therefore, in the manual opening / closing operation of the light shielding member, the rotation of the output rotator accompanying the movement of the transmission member is not hindered by the input rotator (and the drive source), and the manual operation force can be used with a slight manual operation force. The light shielding member can be opened and closed. In this way, the light shielding member can be opened and closed by manual and electric operation with a simple configuration in which the sliding body is interposed between the opposing surfaces in the radial direction of the input rotating body and the output rotating body.

  According to a second aspect of the present invention, in the vehicle sunshade device according to the first aspect, the sliding body and the control surface on which the sliding body is disposed are arranged at equiangular intervals in the circumferential direction of the input rotating body. The gist is that it is provided.

  According to this configuration, the driving source is provided by providing a plurality of sliding bodies interposed between the opposing surfaces of the output rotating body and the input rotating body at equal angular intervals in the circumferential direction of the input rotating body. The rotation of the input rotator by the rotational drive can be uniformly transmitted to the output rotator through the sliding members in the circumferential direction, and the rotation of the output rotator can be further stabilized. In addition, the load required to transmit the rotation of the input rotator to the output rotator can be equally divided between these slides, and the strength required for the slides can be reduced.

  According to a third aspect of the present invention, in the vehicle sunshade device according to the second aspect, the circumferential displacement of each of the sliding bodies is disposed between the adjacent sliding bodies in the circumferential direction. The gist of the invention is that a holding member that regulates the above is provided.

  According to this configuration, for example, the sliding body is arranged in the circumferential direction by restricting the displacement in the circumferential direction of the sliding bodies arranged in accordance with the control surfaces of the input rotating body by the holding member. It is possible to suppress the displacement and engagement with the input rotator and the output rotator, and the rotation of the input rotator with the rotation of the output rotator.

  According to a fourth aspect of the present invention, in the vehicle sunshade device according to any one of the first to third aspects, the sliding body is formed in a columnar shape having a center line extending in parallel with the rotational axis of the rotation transmitting member. It is the gist of that.

  According to the configuration, in the manual opening / closing operation of the light shielding member, when the output rotating body rotates due to the movement of the transmission member, the sliding body formed in a columnar shape rotates with respect to the output rotating body. Relative rotation. That is, the friction generated between the sliding body and the output rotating body is a rolling friction smaller than the sliding friction due to the surface contact. For this reason, when the light shielding member is manually opened and closed, the necessary operating force (opening and closing operation force) can be reduced because the friction generated between the sliding body and the output rotating body is reduced.

  According to a fifth aspect of the present invention, in the vehicle sunshade device according to any one of the first to fourth aspects, at least one engagement portion that transmits rotation to the transmission member of the output rotating body is at least one in the axial direction. The gist is that the part is superposed with the input rotator.

  According to the same configuration, at least a part of the engaging portion of the output rotator is overlapped with the input rotator in the axial direction, so that the input rotator and the output via the slide body Rotational transmission between the rotators and power transmission between the output rotator and the transmission member can be performed at substantially the same position in the axial direction, respectively, and axial shake of the input rotator and the output rotator is suppressed. be able to.

  According to a sixth aspect of the present invention, in the vehicle sunshade device according to any one of the first to fifth aspects, the light shielding member includes a plurality of sunshade panels, and each sunshade panel is a surface in the unfolded state. The gist is that they are arranged in parallel and overlap each other in the retracted state.

  In general, a multi-plate sunshade device is used that opens and closes a plurality of sunshade panels when opening and closing the sunshade panel in a relatively large area. In this multi-plate type sunshade device, since the sliding distance of the sunshade panel is long, a configuration in which the sunshade panel can be opened and closed electrically by a driving source such as a motor is suitable. According to the above configuration, even in a multi-plate type sunshade device configured to open and close the sunshade panel electrically, the sunshade panel can be manually opened and closed, thereby improving convenience.

  ADVANTAGE OF THE INVENTION According to this invention, the sunshade apparatus for vehicles which can open and close the light shielding member by manual and electric operation with a simple structure can be provided.

The top view which shows schematically the sunshade apparatus for vehicles in this embodiment. The disassembled perspective view of the sunshade apparatus for vehicles in this embodiment. The perspective view which shows the expansion | deployment state of the vehicle sunshade apparatus in this embodiment. The top view of the drive mechanism in this embodiment. Sectional drawing along the AA line of FIG. Sectional drawing along the BB line of FIG. Sectional drawing along the BB line of FIG. 5 in other embodiment. (A)-(d) is sectional drawing which showed the expansion | deployment aspect of the sunshade apparatus for vehicles in this embodiment.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the front, rear, left, right, up and down coincide with the direction in the vehicle as shown in FIG.
FIG. 1 is a plan view schematically showing the entire vehicle sunshade device 1. As shown in the figure, an opening 7 is provided in the roof 5 of the vehicle. A fixed panel 8 made of a transparent glass plate is attached to the opening 7 so that sunlight passing through the fixed panel 8 is taken into the vehicle interior. The vehicle sunshade device 1 includes a pair of guide rails 10 disposed at both edges extending in the front-rear direction of the opening 7, and first to third guide rails 10 slidably disposed in the vehicle front-rear direction. The sunshade panels 15 to 17 are provided, and by opening and closing these sunshade panels 15 to 17, the amount of light taken into the passenger compartment is adjusted. Note that three first to third sunshade panels 15 to 17 corresponding to the light shielding member are continuously arranged from the vehicle front end side to the vehicle rear end side.

  Front end sliders 20a, 21a, 22a are provided at the front end portions of the sunshade panels 15-17, and rear end sliders 20b, 21b, 22b are provided at the rear end portions of the sunshade panels 15-17. As shown in FIG. 2, the pair of guide rails 10 have guide grooves 25 extending in the vehicle front-rear direction and opened to face each other. In the guide groove 25, as shown in FIG. 3, an upper groove 25a and a lower groove 25b are superposed vertically in parallel with each other. A rear storage portion 26 for storing the rear end sliders 20b, 21b, and 22b is formed at the end of the lower groove 25b on the vehicle rear side so as to be continuous with the lower groove 25b. On the other hand, a front storage portion 27 for storing the front end sliders 20a, 21a, and 22a is formed in the vehicle rear end portion of the upper groove 25a and in front of the rear storage portion 26 so as to be continuous with the upper groove 25a. .

  As shown in FIGS. 8A to 8D, the rear storage portion 26 includes a door pocket 40 having an inclined wall 30 that is continuous with the lower groove 25b of the guide groove 25 and gradually rises toward the rear of the vehicle. ing. A partition piece 42 is rotatably supported in the door pocket 40 around a hinge pin 41 extending in parallel with the vehicle width direction of the vehicle. The partitioning piece 42 is formed with a guide groove 42a having a substantially U-shaped cross section that is open to the front of the vehicle and has substantially the same width as the lower groove 25b. A coil spring 44 for biasing the partitioning piece 42 counterclockwise around the hinge pin 41 (see FIG. 8) is provided at the lower part of the door pocket 40 and behind the partitioning piece 42 with the support shaft 46 as an axis. It has been. One end of the coil spring 44 is locked to the lower portion of the door pocket 40, and the other end is locked to the lower surface of the partition piece 42. Due to the biasing force of the coil spring 44, the partition piece 42 is normally held in a state where one side 42 b of the partition piece 42 is parallel to the inclined wall 30. In this state, the guide path 45 formed between the inclined wall 30 and one side 42b of the partition piece 42 is connected to the lower groove 25b. As a result, the rear end slider 22 b of the third sunshade panel 17 that slides in the lower groove 25 b is raised along the guide path 45. When the rear end slider 22b comes into contact with the upper wall of the guide path 45 and is further moved to the rear of the vehicle, the partitioning piece 42 resists the biasing force of the coil spring 44 and rotates clockwise with the hinge pin 41 as a fulcrum. The posture is changed to the horizontal state shown in FIG. In this horizontal state, the upper and lower two-stage guide paths 45 and guide grooves 42 a defined by one side 42 b of the partition piece 42 are formed in the door pocket 40 of the rear storage portion 26.

  On the other hand, as shown in FIGS. 8A to 8D, the front storage unit 27 includes a door pocket 50 for storing the front end sliders 21a and 22a of the second and third sunshade panels 16 and 17, and a front side. A coil spring 53 disposed above the front end portion of the third sunshade panel 17 that has entered the storage portion 27 and a spring chamber 54 that houses the coil spring 53 are provided. The coil spring 53 is for urging the third sunshade panel 17 downward via a substantially rectangular parallelepiped rib 55 fixed to the front end side surface of the third sunshade panel 17.

  The door pocket 50 is formed with a guide groove 56 that is continuous with the upper groove 25a of the guide groove 25 and has a path that rises toward the rear of the vehicle. A coil spring 53 is disposed in the spring chamber 54 with the support shaft 57 as an axis. One end of the coil spring 53 is formed with a contact portion 58 that urges the rib 55 downward, and the other end is engaged with the upper wall of the spring chamber 54.

  As shown in FIG. 3, the first and second sunshade panels 15, 16 and the second and third sunshade panels 16, 17 are connected by a connecting mechanism 60. In FIG. 3, the first sunshade panel 15 is omitted. In the unfolded state of the first to third sunshade panels 15 to 17, the first to third sunshade panels 15 to 17 are arranged so as to be flush with each other in the plane in which they extend. Become. Further, in the open state (stored state), the first to third sunshade panels 15 to 17 are superposed in parallel with each other.

  As shown in FIG. 1, the front end slider 20 a provided on the first sunshade panel 15 is connected to a drive mechanism 63 via a rack-like gear cable 62. Specifically, as shown in FIGS. 4 and 5, the drive mechanism 63 has a resin case 68 that forms its outer shape, and is rotatable in a substantially cylindrical worm accommodating portion 68 a formed in the case 68. A worm (screw gear) 65 that is accommodated, and made of resin that is rotatably accommodated in a substantially bottomed cylindrical wheel accommodating portion 68b formed in the case 68 adjacent to the outer peripheral side of the worm accommodating portion 68a. A worm wheel (helical gear) 66 is provided. The worm 65 is fixed to the rotating shaft of the motor 64 and meshes with the worm wheel 66.

  A substantially cylindrical shaft portion 70 protruding upward in FIG. 5 is integrally formed at the center of the bottom wall of the wheel housing portion 68b, and the worm wheel 66 is an axis that penetrates the center in the axial direction. The shaft portion 70 is inserted into the through hole 66a and is supported rotatably. Accordingly, the rotation of the worm 65 accompanying the driving of the motor 64 is transmitted to the worm wheel 66 at a constant reduction ratio, and the worm wheel 66 rotates about the shaft portion 70 as the center of rotation. Further, the worm wheel 66 is formed with a substantially cylindrical projecting portion 71 projecting upward in FIG. 5 along the outer peripheral surface of the shaft portion 70. As shown in FIG. 6, the inner peripheral surface of the protruding portion 71 forms a circumferential surface that is in sliding contact with the outer peripheral surface on the proximal end side of the shaft portion 70. In addition, a plurality of convex surfaces 71a (three in this embodiment at 120 ° intervals) protruding in the radial direction at equal angular intervals are formed on the outer peripheral portion of the protruding portion 71. Each convex surface 71 a has a surface (flat surface) perpendicular to the projecting radial direction, and extends in the axial direction over the entire length of the projecting portion 71.

  The shaft portion 70 is rotatably inserted with a resin-made output pinion 74 on the tip side of the worm wheel 66 (projecting portion 71). That is, the output pinion 74 is formed with a shaft-passing portion 78 having a circumferential surface in sliding contact with the outer circumferential surface of the coaxial portion 70 on the distal end side of the shaft portion 70. The output pinion 74 includes a cylindrical portion 74a corresponding to an engaging portion having an inner peripheral diameter larger than the outer diameter of the protruding portion 71, and teeth that can mesh with the gear cable 62 are formed on the outer peripheral portion of the cylindrical portion 74a. Has been. A part of the cylindrical portion 74a is arranged so as to overlap with the protruding portion 71 in the axial direction. Then, as shown in FIG. 6, a protective member 77 made of a thin, substantially cylindrical metal having an outer diameter equivalent to the inner diameter of the cylindrical portion 74a is press-fitted into the inner peripheral surface (circumferential surface) of the cylindrical portion 74a.・ It is fixed. A substantially annular space 76 extending in the circumferential direction is formed between opposing surfaces of the inner peripheral surface (circumferential surface) of the protection member 77 and the outer wall surface of the protrusion 71. Needless to say, the space 76 has a shorter distance from the inner peripheral surface of the protective member 77 in the radial direction in accordance with the arrangement of the convex surfaces 71a in the circumferential direction. Both sides of the convex surface 71 a protrude in the radial direction toward the inner peripheral surface of the protection member 77 with respect to the central portion (center) in the circumferential direction. That is, both sides of the convex surface 71a are closer to the inner peripheral surface of the protection member 77 than the central portion (center) in the circumferential direction.

  The space 76 is provided with a plurality (three in the present embodiment) of substantially cylindrical clutch members 80 at the center in the circumferential direction of the convex surface 71a. Each clutch member 80 is in line contact with each convex surface 71 a of the protrusion 71 and the inner peripheral surface of the protection member 77. The clutch member 80 constitutes a rotation transmission member together with the worm wheel 66 and the output pinion 74.

  In addition, a plurality of (three in the present embodiment) holding members 81 are provided between the adjacent clutch members 80 in the space 76 and have substantially curved plate shapes in a manner along the space 76. In the holding member 81, sliding portions 81 a having a circumferential surface slidable on the inner circumferential surface of the protection member 77 are formed at both ends in contact with the clutch member 80. In the holding member 81, a concave intermediate portion 82 is formed between the sliding portions 81 a with respect to the protective member 77 so as not to interfere with the protective member 77. Accordingly, while the circumferential distance between the clutch members 80 is maintained by the holding member 81, the circumferential displacement in the space 76 of each clutch member 80 arranged in accordance with the circumferential central portion of each convex surface 71a is suppressed. Has been.

  In such a configuration, when the worm wheel 66 rotates about the shaft portion 70, the clutch member 80 pressed against the convex surface 71a presses the protective member 77 (and the output pinion 74) in the circumferential direction and the radial direction. Thereby, the output pinion 74 to which the protective member 77 is fixed rotates integrally. At this time, the holding member 81 revolves around the shaft portion 70 together with the clutch member 80, thereby holding the intervals in the circumferential direction of the clutch members 80. In addition, since a plurality of clutch members 80 are provided at equiangular intervals, the driving force from the worm wheel 66 is equally applied to each clutch member 80. Accordingly, the driving force of the worm wheel 66 is transmitted in a balanced manner in the rotation direction of the output pinion 74.

  On the other hand, when the output pinion 74 rotates around the shaft 70, the output pinion 74 (more precisely, the protection member 77) rotates the clutch member 80 between the convex surface 71 a and the protection member 77, and slides the holding member 81. It slides and rotates with respect to 81a. That is, since the clutch member 80 is not displaced with respect to the protrusion 71 by the rotation of the output pinion 74, the rotation of the output pinion 74 is not transmitted to the worm wheel 66 side by the clutch member 80.

  From the above, for example, when the occupant drives the motor 64 by operating an operation switch (not shown), the rotation is transmitted to the output pinion 74 via the worm wheel 66 and the clutch member 80. As a result, the gear cable 62 connected to the output pinion 74 moves in the vehicle longitudinal direction along the guide rail 10, and the first sunshade panel 15 along the guide rail 10 together with the front end slider 20 a connected to the gear cable 62. To slide in the opening and closing direction. Further, as the first sunshade panel 15 slides, the second and third sunshade panels 16 and 17 connected by the connecting mechanism 60 are slid to operate.

  On the other hand, when the occupant slides the first sunshade panel 15 by manual operation, the front end slider 20a moves along the guide rail 10 together with the gear cable 62. As the gear cable 62 moves, the output pinion 74 meshing with the gear cable 62 slides and rotates with respect to the sliding portion 81a of the holding member 81 while rotating the clutch member 80 in the manner described above. Therefore, at the time of manual operation, the first to third sunshade panels 15 to 17 can be opened and closed with a smaller operation force than the configuration in which the worm wheel 66 and the like rotate integrally. Thus, with the simple configuration of providing the clutch member 80 between the worm wheel 66 and the output pinion 74, the first to third sunshade panels 15 to 17 can be opened and closed manually and electrically operated.

  Further, when the clutch member 80 rotates, rolling friction is generated between the convex surface 71 a and the protection member 77. Here, the rolling friction has a smaller frictional force than the sliding friction generated by the sliding of the surface contact. For this reason, the friction generated when the clutch member 80 rotates relative to the output pinion 74 can be reduced, the manual operation force can be reduced, and the transmission of the driving force to the worm wheel 66 side can be cut off more reliably. can do.

  Further, the clutch member 80 presses the protective member 77 in the radial direction and the circumferential direction by the rotating convex surface 71a. Also at this time, since the protective member 77 is made of metal, it is difficult for the protective member 77 to be deformed by the pressing force of the clutch member 80. For this reason, the driving force of the worm wheel 66 is reliably transmitted to the protection member 77 and the output pinion 74 without the clutch member 80 being displaced.

  Next, the opening / closing operation | movement of the 1st-3rd sunshade panels 15-17 in above-described embodiment is demonstrated. In the unfolded state shown in FIGS. 1 and 3, the first to third sunshade panels 15 to 17 have the front end slider 20 a of the sunshade panel 15 engaged with the lower groove 25 b of the guide rail 10, and the sunshade panels 16 and 17. The front end sliders 21 a and 22 a are engaged with the upper groove 25 a of the guide rail 10, and the rear end sliders 21 b and 22 b are engaged with the lower groove 25 b of the guide rail 10.

  FIG. 8A to FIG. 8D show a state in which the first to third sunshade panels 15 to 17 are shifted from the expanded state to the stored state. Here, the unfolding and retracting modes of the first to third sunshade panels 15 to 17 are manually operated by the occupant even in the case where the first and third sunshade panels 15 to 17 are electrically operated through driving the motor 64 by a switch (not shown) operation. The same applies even if

  When the first sunshade panel 15 is slid rearward along the guide groove 25 of the guide rail 10 in the unfolded state shown in FIG. 8A, it is driven from the first sunshade panel 15 via the coupling mechanism 60. Under the force, the second and third sunshade panels 16 and 17 are also slid in the same direction along the guide groove 25 of the guide rail 10. First, as shown in FIG. 8B, the front end slider 22a of the third sunshade panel 17 moves to the front storage portion 27, and the rear end slider 22b moves to the rear storage portion 26 side.

  When the first sunshade panel 15 is further slid rearward, the front end slider 22a of the third sunshade panel 17 is guided by the guide groove 56 of the front storage portion 27 as shown in FIG. 8C. It begins to be lifted up. At this time, the upper surface of the rib 55 provided on the front end slider 22a and the lower end of the contact portion 58 of the coil spring 53 provided on the front storage portion 27 abut. For this reason, the third sunshade panel 17 is urged downward by the elastic force of the coil spring 53, and the occurrence of rattling is suppressed. On the other hand, at this time, the rear end slider 22 b is also engaged with the rear storage portion 26 and starts to be raised along the guide path 45.

  Thereafter, when the first sunshade panel 15 is further slid rearward, the third sunshade panel 17 is lifted further upward with respect to the second sunshade panel 16 while maintaining the horizontal state, and the third sunshade panel The panel 17 rides on the upper surface of the second sunshade panel 16. At this time, the upper surface of the rib 55 provided on the front end slider 22a of the third sunshade panel 17 and the lower end of the contact portion 58 of the coil spring 53 provided at the rear portion of the front storage portion 27 are in contact with each other. The third sunshade panel 17 is biased downward. Then, as shown in FIG. 8D, when the first sunshade panel 15 is further slid rearward, the rear end slider 21 b of the second sunshade panel 16 enters the rear storage portion 26. The rear end slider 21b that has entered the rear storage portion 26 is guided upward, and has already been rotated and held in a horizontal state by the rear end slider 22b of the third sunshade panel 17 entering the guide path 45 ( 6), the movement in the vertical direction is restrained. As a result, the rear end slider 22b of the third sunshade panel 17 enters between the upper wall of the door pocket 40 and one side 42b of the partition piece 42 and is restrained from moving up and down.

  At the same time, the front end slider 21 a of the second sunshade panel 16 is lifted upward by the guide groove 56 of the front storage portion 27. Then, as shown in FIG. 8D, the second sunshade panel 16 rides on the upper surface of the first sunshade panel 15 and is in a fully retracted state. Note that when the first sunshade panel 15 is slid forward from the fully retracted state, the first to third sunshade panels 15 to 17 are in the deployed state in the order opposite to the above.

As described above, according to the embodiment described above, the following effects can be obtained.
(1) The clutch member 80 presses the inner peripheral surface of the output pinion 74 (more precisely, the inner peripheral surface of the protective member 77) by the convex surface 71a of the worm wheel 66 when the worm wheel 66 is rotated by the rotation drive of the motor 64. As a result, the output pinion 74 is rotated. Accordingly, the driving force of the motor 64 is transmitted to the first sunshade panel 15 via the worm wheel 66, the clutch member 80, the output pinion 74 and the gear cable 62, and the first to third sunshade panels 15 to 17 are driven to open and close. can do. On the other hand, the clutch member 80 slides (rolls) on the inner peripheral surface of the output pinion 74 (more precisely, the inner peripheral surface of the protective member 77) when the output pinion 74 is rotated by the movement of the gear cable 62. The relative rotation of the worm wheel 66 and the output pinion 74 is allowed. Accordingly, in the manual opening / closing operation of the first sunshade panel 15, the rotation of the output pinion 74 accompanying the movement of the gear cable 62 is not hindered by the worm wheel 66 (and the motor 64), and with a slight manual operation force. The first sunshade panel 15 and the like can be manually operated. As described above, the first to third sunshade panels 15 to 17 are opened and closed manually and electrically by a simple configuration in which the clutch member 80 is interposed in the radial space 76 of the worm wheel 66 and the output pinion 74. be able to.

In addition, since the configuration is simple as described above, the vehicle sunshade device 1 itself can be made more compact, and the cost can be reduced.
(2) A plurality of clutch members 80 interposed in the space 76 between the output pinion 74 and the worm wheel 66 are provided at equal angular intervals in the circumferential direction of the worm wheel 66, so that the rotation of the worm wheel 66 by the rotational drive of the motor 64 is performed. Can be evenly transmitted to the output pinion 74 via these clutch members 80, and the rotation of the output pinion 74 can be further stabilized. Further, the load required to transmit the rotation of the worm wheel 66 to the output pinion 74 can be equally divided among these clutch members 80, and the strength required for the clutch member 80 can be reduced.

  (3) By restricting the circumferential displacement of each clutch member 80 arranged in accordance with each convex surface 71 a of the worm wheel 66 by the holding member 81, for example, the clutch member 80 is displaced in the circumferential direction and the worm wheel 66. Further, it is possible to prevent the worm wheel 66 from being rotated along with the rotation of the output pinion 74 by engaging with the output pinion 74.

  (4) In the manual opening / closing operation of the first to third sunshade panels 15 to 17, the clutch member 80 rotates relative to the output pinion 74 while rotating. That is, the friction generated between the clutch member 80 and the output pinion 74 is a rolling friction smaller than the sliding friction due to the surface contact. For this reason, when the first sunshade panel 15 is manually opened and closed, the required operating force (opening and closing operation force) can be reduced by the amount of friction generated between the clutch member 80 and the output pinion 74 is reduced.

  (5) Since the cylindrical portion 74a of the output pinion 74 is overlapped with the worm wheel 66 in the axial direction, rotation transmission between the worm wheel 66 and the output pinion 74 via the clutch member 80, and the output pinion 74 and Power transmission between the gear cables 62 can be performed at substantially the same position in the axial direction, and the shaft shake of the worm wheel 66 and the output pinion 74 can be suppressed.

  (6) In a general vehicle sunshade device that can basically be opened and closed only by electric operation, the worm wheel 66 and the output pinion 74 in this embodiment are integrally formed as a single two-stage gear. . The first to third sunshade panels 15 to 17 by manual and electric operation are simply replaced with the worm wheel 66, the clutch member 80, and the output pinion 74 in the present embodiment. The vehicle sunshade device 1 that can be opened and closed can be provided.

In addition, the said embodiment can be implemented with the following forms which changed this suitably.
As shown in FIG. 7, for example, a substantially arcuate columnar clutch member 86 having a circumferential surface having an outer circumferential diameter equivalent to the inner circumferential diameter of the protection member 77 may be employed. A flat surface 85 is formed on the clutch member 86 so as to come into surface contact with the convex surface 71a. In this configuration, when the output pinion 74 is rotated via the gear cable 62 by manual operation of the first sunshade panel 15, the output pinion 74 slides on the outer peripheral surface of the clutch member 86 on the inner peripheral surface of the protection member 77. Rotate in a manner that At this time, the rotation of the output pinion 74 is not transmitted to the worm wheel 66 side. On the other hand, when the worm wheel 66 is rotated by driving the motor 64, the output pinion 74 is integrally rotated via the clutch member 80. As a result, the first to third sunshade panels 15 to 17 are electrically opened and closed via the gear cable 62.

  In the above embodiment, the control surface (convex surface 71a) is not limited to a flat surface. For example, the control surface may be formed in a concave shape in the direction of the shaft portion 70. In short, it is only necessary that both sides thereof are close to the inner peripheral surface of the protective member 77 (output pinion 74) in the radial direction with respect to the central portion (center) in the circumferential direction where the sliding body is arranged.

  In the above embodiment, the holding member 81 may be omitted. In this case, it is necessary to make it the structure which suppresses the position shift of the clutch member 80, such as forming the bearing part which hold | maintains the clutch member 80 so that rotation is possible on the convex surface 71a.

In the above-described embodiment, the number of clutch members 80 may be one or more as long as the number is one or more, and the installation positions of the clutch members 80 may not be equiangular intervals.
In the above embodiment, the protection member 77 is provided. However, if the deformation of the output pinion 74 due to the pressing force of the clutch member 80 does not become a problem, the protection member 77 may be omitted.

  In the above embodiment, the output pinion 74 (cylinder portion 74a) is positioned so as to cover the outer periphery of the protruding portion 71 of the worm wheel 66. However, the protruding portion may be formed so as to cover a part of the outer periphery of the output pinion. In this case, a clutch member 80 or the like is provided between the outer peripheral surface of the output pinion and the inner peripheral surface of the protruding portion.

  In the above embodiment, the present invention is applied to a multi-plate type sunshade device in which a plurality of sunshade panels are opened and closed as light shielding members, but a single sunshade panel may be used. Further, a sunshade device that is opened and closed by a motor or the like can be applied to other types of sunshade devices such as a roll-type sunshade device.

  The vehicle sunshade device 1 can be installed on a windshield glass and a windshield.

  DESCRIPTION OF SYMBOLS 1 ... Vehicle sunshade apparatus, 5 ... Roof, 7 ... Opening part, 8 ... Fixed panel, 10 ... Guide rail, 15 ... 1st sunshade panel, 16 ... 2nd sunshade panel, 17 ... 3rd sunshade panel, 25 ... Guide groove, 25a ... Upper groove, 25b ... Lower groove, 26 ... Rear storage part, 27 ... Front storage part, 54 ... Spring chamber, 20a, 21a, 22a ... Front end slider, 20b, 21b, 22b ... Rear end slider, 40 DESCRIPTION OF SYMBOLS ... Door pocket, 42 ... Partition piece, 50 ... Door pocket, 55 ... Rib, 60 ... Connection mechanism, 62 ... Gear cable (transmission member), 63 ... Drive mechanism, 64 ... Motor (drive source), 65 ... Worm (input rotary body) ), 66 ... Worm wheel (input rotator), 68 ... Case, 70 ... Shaft, 71 ... Projection, 71a ... Convex surface (control surface), 74 ... Output pinion (output rotator), 74a Cylinder portion, 76 ... space, 77 ... protective member, 78 ... Jikudori unit, 80 ... clutch member (sliding member), 81 ... holding member, 81a ... sliding portion.

Claims (6)

A rotation transmission member connected to the drive source and driven to rotate by the drive source, a transmission member connected to the rotation transmission member and driven to move, and a light shielding member connected to the transmission member and driven to open and close In a vehicle sunshade device comprising:
The rotation transmission member is
An input rotator coupled to the drive source;
An output rotator disposed coaxially with the input rotator and coupled to the transmission member;
A sliding body disposed between the opposing surfaces in the radial direction of the input rotator and the output rotator and disposed on a control surface provided on the opposing surface of the input rotator,
The sliding body is pressed by the control surface along with the rotation of the input rotating body and rotates the output rotating body by pressing the opposing surface of the output rotating body, and with the rotation of the output rotating body. A vehicle sunshade device characterized by allowing relative rotation of the input rotator and the output rotator by sliding on the facing surface of the output rotator. The vehicle sunshade device according to claim 1,
The vehicle sunshade device, wherein a plurality of the sliding bodies and the control surfaces on which the sliding bodies are arranged are provided at equiangular intervals in the circumferential direction of the input rotating body. The vehicle sunshade device according to claim 2,
A vehicular sunshade device comprising a holding member that is disposed between the adjacent sliding bodies in the circumferential direction and restricts displacement of the sliding bodies in the circumferential direction with respect to the input rotating body. In the vehicle sunshade device according to any one of claims 1 to 3,
The vehicle sunshade device, wherein the sliding body is formed in a columnar shape having a center line extending in parallel with a rotation axis of the rotation transmitting member. In the vehicle sunshade device according to any one of claims 1 to 4,
The vehicle sunshade device, wherein at least a part of the engaging portion that transmits the rotation to the transmission member of the output rotator is overlapped with the input rotator in the axial direction. In the vehicle sunshade device according to any one of claims 1 to 5,
The said light shielding member consists of a plurality of sunshade panels, and each sunshade panel is disposed flush with each other in the unfolded state and overlaps with each other in the retracted state.