JP2012240576A - Light blocking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress a load from being imparted to an operation member while an opening/closing member is in a closed state.SOLUTION: A light blocking device 10 is equipped with a light blocking member, a supporting member 16 arranged in an end on a deployment side of the light blocking member, an opening/closing member 28 for opening and closing a slit part 36 formed in a rear package tray 34, and a linkage mechanism 30 for supporting the opening/closing member 28 to a body member 18 and having a first arm part 56 and a second arm part 58. When the light blocking member is shifted to the deployment state, the opening/closing member 28 is turned to open by bringing the supporting member 16 into contact with the first arm part 56. On the other hand, when the light blocking member is shifted to a roll-up state, the opening/closing member 28 is turned to close by bringing the supporting member 16 into contact with the second arm part 58. Therefore, because there is no necessity of using an energizing member for the mechanism itself for opening and closing the opening/closing member 28, while the opening/closing member 28 is in the closed state, the load imparted to the operation mechanism can be suppressed.

Description

  The present invention relates to a light shielding device.

  2. Description of the Related Art Conventionally, an automotive window shade (18) comprising a window shade sheet (18), a drawer rod device (21) coupled to the window shade sheet, and a lid (15) covering the slit (12) of the cover (11). 17) is known (see, for example, Patent Document 1).

Japanese Patent No. 4503978

  However, in this automobile window shade (17), the lid (15) is urged in the opening direction by the compression spring (46), and the entrainment pin (41) comes into contact with the operating arm (47) so that the lid ( 15) is closed. Therefore, while the lid (15) is in the closed state, a load is applied to the operating element (23) constituted by the cable.

  This invention is made | formed in view of the said subject, Comprising: It aims at providing the light-shielding device which can suppress that a load is applied to an operation member, while an opening-and-closing member is a closed state.

  In order to solve the above-mentioned problem, the light-shielding device according to claim 1 is formed in a sheet shape and takes a winding state wound around the winding member and a deployed state deployed from the winding member. A light-shielding member to be obtained, a support member that is provided at an end of the light-shielding member on the unfolding side, and that is moved by an operating member to change the light-shielding member between the winding state and the unfolded state; A main body member that supports the take-up member, an open / close member that is pivotally connected to the main body member, opens and closes a movement path of the support member, a link mechanism that supports the open / close member with respect to the main body member, Provided in at least one of the link mechanism and the opening / closing member, when the support member is moved in a direction to change the light shielding member from the winding state to the unfolded state, the opening / closing is brought into contact with the support member Part A first abutting portion that pivots the lens from a closed state to an open state, and at least one of the link mechanism and the opening / closing member, and supports the light shielding member in a direction to change the unfolded state to the wound state. A second abutting portion that abuts on the support member and rotates the opening / closing member from the open state to the closed state when the member is moved.

  According to this light-shielding device, when the light-shielding member is changed from the wound state to the deployed state, the support member is brought into contact with the first contact portion, whereby the opening / closing member is rotated from the closed state to the open state. Moved. On the other hand, when the light shielding member is changed from the deployed state to the wound state, the support member is brought into contact with the second contact portion, and thereby the opening / closing member is rotated from the open state to the closed state. Therefore, since it is not necessary to use a biasing member for the mechanism itself for opening and closing the opening and closing member, it is possible to suppress the load on the operating member while the opening and closing member is in the closed state.

  The light-shielding device according to claim 2 is provided in at least one of the link mechanism and the opening / closing member in the light-shielding device according to claim 1, and contacts the first receiving portion when the opening / closing member is in a closed state. A first rotation restricting portion that is in contact with and restricts rotation of the opening / closing member in a direction opposite to the opening direction; and provided in at least one of the link mechanism and the opening / closing member, and the opening / closing member is in an open state. A second rotation restricting portion that is sometimes in contact with the second receiving portion and restricts the rotation of the opening / closing member in the direction opposite to the closing direction.

  According to this light-shielding device, when the opening / closing member is in the closed state, the rotation of the opening / closing member in the direction opposite to the opening direction can be restricted by the first rotation restricting portion, and when the opening / closing member is in the open state The rotation of the opening / closing member in the direction opposite to the closing direction can be restricted by the second rotation restricting portion. Thereby, when the opening / closing member is in the open state or the closed state, it is possible to avoid the opening / closing member from exceeding the open position or the closed position due to unexpected vibration or the like.

  The light-shielding device according to claim 3 is the light-shielding device according to claim 2, wherein the first contact portion, the second contact portion, the first rotation restricting portion, and the second rotation restricting portion. The portion is formed integrally with at least one of the link mechanism and the opening / closing member.

  According to this light shielding device, the first contact portion, the second contact portion, the first rotation restricting portion, and the second rotation restricting portion are formed integrally with at least one of the link mechanism and the opening / closing member. Therefore, the increase in the number of parts can be suppressed, and as a result, the cost can be reduced.

  A light-shielding device according to a fourth aspect is the light-shielding device according to the third aspect, further comprising a closing direction biasing member that biases the opening / closing member in the closing direction.

  According to this light-shielding device, since the opening / closing member is urged in the closing direction by the closing direction urging member, the opening / closing member can be maintained in the closed state even if, for example, vibration occurs.

  The light-shielding device according to claim 5 is the light-shielding device according to claim 4, wherein the link mechanism includes a first link member whose one end side is rotatably connected to the opening and closing member, and one end side of the first link. A second link member rotatably connected to the other end side of the member, and the other end side rotatably connected to the main body member; and the second link member in a direction to rotate the opening and closing member. An opening direction biasing member that biases the opening direction biasing force applied by the closing direction biasing member that acts on the opening / closing member in a closed state of the opening / closing member. It is set as the structure set higher than the urging | biasing force by a member.

  According to this light shielding device, since the second link member is urged by the opening direction urging member in the direction in which the opening / closing member is rotated in the opening direction, the opening / closing member can be opened more smoothly.

  Further, the biasing force by the closing direction biasing member acting on the opening / closing member in the closed state of the opening / closing member is set higher than the biasing force by the opening direction biasing member acting on the opening / closing member. Therefore, even when the opening direction urging member is used, it is possible to suppress the load on the operating member while the opening / closing member is in the closed state.

  The light-shielding device according to claim 6 is the light-shielding device according to any one of claims 1 to 5, wherein the opening / closing member is rotatable with respect to the main body member via a first rotation connecting portion. A first link member having one end side rotatably connected to the opening / closing member via a second rotation connecting portion, and one end side being connected to the other end side of the first link member. A second link member that is pivotally coupled via a three-rotation coupling portion and whose other end is pivotally coupled to the main body member, and the first contact portion is the second link member. A straight line that is provided on the link member and connects the first rotary connecting part and the second rotary connecting part, and a straight line connecting the second rotary connecting part and the third rotary connecting part, When the opening / closing member is in the closed state, the opening / closing member forms a right angle.

  Note that the right angle in this case includes a substantially right angle.

  According to this light-shielding device, when the opening / closing member is in the closed state, the straight line connecting the first rotation connection portion and the second rotation connection portion, and the second rotation connection portion and the third rotation connection portion. The connecting line forms a right angle. Therefore, when the opening / closing member is rotated in the opening direction from the closed state, the force is effectively transmitted from the second link member to the first link member, so that the load applied to the operating member can be reduced.

  The light-shielding device according to claim 7 is the light-shielding device according to any one of claims 1 to 6, wherein the opening / closing member is rotatable to the main body member via a first rotation connecting portion. A first link member having one end side rotatably connected to the opening / closing member via a second rotation connecting portion, and one end side being connected to the other end side of the first link member. A second link member that is pivotally connected via a three-turn connecting portion and whose other end is rotatably connected to the main body member via a fourth turn connecting portion. When the opening / closing member is in the open state, the three rotation connecting portion is positioned closer to the deployment direction of the light shielding member than the straight line connecting the second rotation connecting portion and the fourth rotation connecting portion. It is configured.

  According to this light-shielding device, when the opening / closing member is in the open state, the third rotational coupling portion is positioned closer to the deployment direction side of the light-shielding member than the straight line connecting the second rotational coupling portion and the fourth rotational coupling portion. Is done. Therefore, when the opening / closing member is in the open state, for example, when a load acts on the fourth rotating connection portion side with respect to the second rotating connection portion due to the weight of the opening / closing member, the third rotation A component force acts on the connecting portion on the developing direction side of the light shielding member. Thereby, even when an external force is applied to the opening / closing member in the closing direction, it is possible to suppress the unexpected rotation of the opening / closing member in the closing direction.

  The light-shielding device according to claim 8 is the light-shielding device according to claim 7, wherein the fourth rotation connecting portion passes through the second rotation connecting portion when the opening / closing member is in the open state. It is configured to be positioned on the deployment direction side of the light shielding member with respect to a perpendicular line drawn from the straight line connecting the first rotation connection portion and the second rotation connection portion to the fourth rotation connection portion side. .

  According to this light-shielding device, when the open / close member is in the open state, the straight line connecting the first rotation connection portion and the second rotation connection portion passes through the second rotation connection portion to the fourth rotation connection portion side. With respect to the lowered vertical line, the fourth rotation connecting portion is positioned on the deployment direction side of the light shielding member. Thereby, it is possible to reduce the amount of movement of the third rotary connecting portion to the deployment direction side of the light shielding member beyond the straight line connecting the second rotary connecting portion and the fourth rotary connecting portion, and to open and close the opening / closing member. Can be easily held. In addition, since the contact time between the first contact portion and the support member can be shortened, the load on the operating member can be further reduced.

  The light-shielding device according to claim 9 is the light-shielding device according to any one of claims 1 to 8, wherein the second abutment portion changes the open / close member between a closed state and an open state. In the meantime, it is configured to be positioned on the movement locus of the support member.

  According to this light shielding device, the second contact portion is positioned on the movement locus of the support member while the opening / closing member is changed between the closed state and the open state. Can be reliably brought into contact with each other, and as a result, the light shielding member can be smoothly wound up.

  The light-shielding device according to claim 10 is the light-shielding device according to any one of claims 1 to 9, wherein the first contact portion and the second contact portion are the link mechanism and the opening / closing device. It is formed in an arm shape extending from at least one of the members, and the second contact portion is configured to be offset in the axial direction of the winding member with respect to the link mechanism and the first contact portion. ing.

  According to this light shielding device, the second contact portion is offset in the axial direction of the winding member with respect to the link mechanism and the first contact portion. Therefore, for example, when the light shielding member is in the winding state, it is possible to suppress the second contact portion from interfering with the link mechanism and the first contact portion. Thereby, it can avoid that opening and closing of an opening-and-closing member is prevented.

  The light-shielding device according to claim 11 is the light-shielding device according to claim 10, wherein the link mechanism includes a first link member whose one end is rotatably connected to the opening and closing member, and one end which is the first link. A second link member rotatably connected to the other end side of the member, and the other end side rotatably connected to the main body member, the first contact portion and the second contact portion However, the first link member or the second link member is integrally formed.

  According to this light-shielding device, the first contact portion and the second contact portion are formed integrally with the first link member or the second link member, so that interference with the operation of the link mechanism is suppressed. can do. Moreover, the relationship with a 1st contact part, a 2nd contact part, and a supporting member can also be set easily.

  The light-shielding device according to claim 12 is the light-shielding device according to any one of claims 1 to 11, wherein the first abutting portion is configured to support the support member when the opening / closing member is in a closed state. The light blocking member is in contact with the support member to close the opening / closing member while the light shielding member is changed from the winding state to the intermediate state between the winding state and the unfolded state. When the light-shielding member is separated from the support member while the light-shielding member is changed from the intermediate state to the unfolded state, and the second contact portion is in the open state. Is positioned on the movement locus of the support member, and is separated from the support member while the light shielding member is changed from the deployed state to the intermediate state, and the light shielding member is moved from the intermediate state to the winding state. While being changed to the support member. It has a configuration which is rotated to the closed state the closing member is from the open state.

  According to the light shielding device, the support member and the first contact portion are separated while the light shielding member is changed from the intermediate state to the expanded state, and the support member is changed while the light shielding member is changed from the expanded state to the intermediate state. And the second contact portion are separated from each other. Accordingly, during this time, for example, resistance during operation of the link mechanism does not act on the support member, so that it is possible to further reduce the load on the operation member.

It is a perspective view of the light-shielding device concerning one embodiment of the present invention. It is a perspective view of the drive unit shown in FIG. 1 and its peripheral part. It is a side view of the light-shielding device shown in FIG. 1, and is a diagram showing a case where the opening / closing member is in a closed state. It is a side view explaining a mode that an opening-and-closing member is rotated in an opening direction in the light-shielding device shown in FIG. It is a side view of the light-shielding device shown in FIG. 1, and is a view showing a case where an opening / closing member is in an open state. It is a perspective view explaining a mode that an opening-and-closing member is rotated in an opening direction from a closed state in the light-shielding device shown in FIG. It is a perspective view explaining a mode that the opening-and-closing member is rotated in an opening direction until it will be in an open state in the light-shielding device shown by FIG. It is a front enlarged view of the peripheral part of the link mechanism with which the light-shielding apparatus shown by FIG. 1 was equipped. It is a side view which shows the 1st modification of the light-shielding apparatus shown by FIG. 1, Comprising: It is a figure which shows the case where an opening-and-closing member is in a closed state. It is a side view which shows the 2nd modification of the light-shielding apparatus shown by FIG. 1, Comprising: It is a figure which shows the case where an opening-and-closing member is in an open state. It is a side view which shows the 3rd modification of the light-shielding apparatus shown by FIG. 1, Comprising: It is a figure which shows the case where an opening-and-closing member is in an open state.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  A light shielding device 10 according to an embodiment of the present invention shown in FIG. 1 is disposed, for example, at the rear of a passenger compartment of a vehicle such as a passenger car, and shields the rear glass. In addition, arrow UP, arrow FR, and arrow OUT shown in each figure respectively show the vehicle up-down direction upper side, the vehicle front-rear direction front side, and the vehicle width direction outer side (right side) when the light shielding device 10 is disposed at the rear of the vehicle compartment. ing. The light shielding device 10 includes a winding member 12, a light shielding member 14, a support member 16, a main body member 18, a pair of guide members 20, and an operation mechanism 22.

  The winding member 12 is formed in a round bar shape and is rotatably supported by the main body member 18. An urging member such as a torsion spring (not shown) is provided between the winding member 12 and the main body member 18, and the urging member 12 causes the winding member 12 to wind up a light shielding member 14 described later. Is being energized.

  The light shielding member 14 has light shielding properties and is formed in a sheet shape. The light shielding member 14 has a base end portion fixed to the winding member 12, and a winding state wound around the winding member 12 and a deployed state where the rear glass is unfolded from the winding member 12. It comes to be able to take.

  The support member 16 is formed in a rod shape extending in the width direction of the light shielding member 14, and is provided at an end portion 14 </ b> A on the development side of the light shielding member 14.

  The pair of guide members 20 extends in a direction orthogonal to the width direction of the light shielding member 14 and is disposed along the vertical edge of the rear glass. The pair of guide members 20 movably support moving members (not shown) provided at both ends in the longitudinal direction of the support member 16.

  As illustrated in FIG. 2, the operation mechanism 22 includes a pair of cables 24 that are examples of an operation member inserted through the cable guide 25, and a drive unit 26. The pair of cables 24 is made of resin. One end of each of the pair of cables 24 is fixed to the above-described moving member. On the other hand, a rack (not shown) is formed on the other end side of each of the pair of cables 24, and a pinion (not shown) engaged with the rack is provided on the drive shaft of the drive unit 26.

  In the light shielding device 10, when the above-described pinion is rotated in the forward and reverse directions by the drive unit 26, one end side of the cable 24 having a rack engaged with the pinion moves forward and backward along the guide member 20. Thereby, the support member 16 is moved up and down along the rear glass, and accordingly, the light shielding member 14 is changed between a winding state and a deployed state.

  Further, the light shielding device 10 includes an opening / closing member 28 and a link mechanism 30 as shown in FIG. 3.

  The opening / closing member 28 is rotatably connected to the main body member 18 via the first rotation connecting portion 32, and has a slit portion 36 that is an example of a movement path of the support member 16 formed on the rear package tray 34. It is configured to open and close. In addition, the first rotation connecting portion 32 is provided with a torsion spring 38 which is an example of a closing direction urging member. One end of the torsion spring 38 is locked to the opening / closing member 28, and the other end of the torsion spring 38 is locked to the main body member 18. The torsion spring 38 urges the opening / closing member 28 in the closing direction.

  A first receiving portion 40 is formed at the vehicle front side edge of the slit portion 36, and a first rotation restricting portion 42 is formed at the rotation end of the opening / closing member 28. The first rotation restricting portion 42 is configured to be in contact with the first receiving portion 40 when the opening / closing member 28 is in a closed state and restrict the rotation of the opening / closing member 28 in the direction opposite to the opening direction. ing.

  The link mechanism 30 supports the opening / closing member 28 with respect to the main body member 18, and includes a first link member 44 and a second link member 46.

  One end side of the first link member 44 is rotatably connected to the opening / closing member 28 via the second rotation connecting portion 50. One end side of the second link member 46 is rotatably connected to the other end side of the first link member 44 via the third rotation connecting portion 52, and the other end side is connected to the main body member 18 with the fourth rotation connecting portion 54. It is connected so that rotation is possible.

  The fourth rotation connecting portion 54 is provided with a torsion spring 48 which is an example of an opening direction biasing member. One end of the torsion spring 48 is locked to the second link member 46, and the other end of the torsion spring 48 is locked to the main body member 18. The torsion spring 48 urges the second link member 46 in a direction to rotate the opening / closing member 28 in the opening direction.

  The urging force by the torsion spring 38 acting on the opening / closing member 28 in the closed state of the opening / closing member 28 is set higher than the urging force by the torsion spring 48 acting on the opening / closing member 28.

  The second link member 46 is integrally formed with a first arm portion 56 and a second arm portion 58 as an example of the first contact portion and the second contact portion. The first arm portion 56 and the second arm portion 58 are formed in an arm shape extending from the second link member 46, and are shaped so that the opening / closing member 28 can be opened and closed by contacting the support member 16. And position are set.

  That is, the first arm portion 56 supports the support member 16 when the support member 16 is moved in the direction in which the light shielding member 14 is changed from the wound state to the deployed state (when moved to the upper side of the vehicle along the rear glass). And the opening / closing member 28 is rotated from the closed state to the open state.

  More specifically, the first arm portion 56 is positioned on the movement locus of the support member 16 when the opening / closing member 28 is in the closed state (see FIG. 3). Further, the first arm portion 56 is brought into contact with the support member 16 to open the opening / closing member 28 from the closed state while the light shielding member 14 is changed from the winding state to the intermediate state between the winding state and the unfolded state. Rotate to the state (refer to the upper diagrams of FIGS. 4, 6, and 7). Further, the first arm portion 56 is separated from the support member 16 while the light shielding member 14 is changed from the intermediate state to the deployed state (see the lower diagrams of FIGS. 5 and 7).

  Note that the contact portion 56A of the first arm portion 56 with the support member 16 is curved so as to be convex toward the deployment direction of the light shielding member 14 when the opening / closing member 28 is in a closed state ( (See FIG. 3).

  On the other hand, the second arm portion 58 supports the support member 16 when the support member 16 is moved in the direction of changing the light shielding member 14 from the expanded state to the wound state (when moved to the vehicle lower side along the rear glass). 16, the opening / closing member 28 is rotated from the open state to the closed state.

  More specifically, the second arm portion 58 is positioned on the movement locus of the support member 16 when the opening / closing member 28 is in the open state (see FIG. 5). Further, the second arm portion 58 is separated from the support member 16 while the light shielding member 14 is changed from the developed state to the intermediate state (see the lower diagrams of FIGS. 5 and 7). Further, the second arm portion 58 is in contact with the support member 16 and rotates the opening / closing member 28 from the open state to the closed state while the light shielding member 14 is changed from the intermediate state to the winding state (FIG. 4). FIG. 6 and FIG.

  Further, the link mechanism 30 configured to include the first arm portion 56 and the second arm portion 58 is more specifically configured as follows.

  That is, as shown in FIG. 3, in the link mechanism 30, a straight line L <b> 1 that connects the first rotation connection portion 32 and the second rotation connection portion 50, and the second rotation connection portion 50 and the third rotation connection. A straight line L2 connecting the connecting portion 52 forms a substantially right angle when the opening / closing member 28 is in a closed state. Further, as shown in FIG. 5, when the opening / closing member 28 is in the open state, the third rotation connecting portion 52 is from a straight line L3 that connects the second rotation connecting portion 50 and the fourth rotation connecting portion 54. Also, the light shielding member 14 is positioned on the development direction side.

  Further, when the opening / closing member 28 is in the open state, the fourth rotation connection portion 54 passes through the second rotation connection portion 50 and connects the first rotation connection portion 32 and the second rotation connection portion 50 with a straight line L1. The light shielding member 14 is positioned on the developing direction side with respect to the perpendicular line L4 lowered from the first to the fourth rotation connecting portion 54 side. Further, the second arm portion 58 is positioned on the movement locus of the support member 16 while the opening / closing member 28 changes between the closed state and the open state.

  As shown in FIG. 8, the second arm portion 58 is configured so that the winding mechanism 12 is in contact with the link mechanism 30 (the first link member 44 and the second link member 46) and the first arm portion 56. It is offset in the axial direction (more specifically, the central side in the axial direction) (the offset amount is A).

  Further, as shown in FIG. 5, a second receiving portion 60 is formed on the main body member 18, and a second rotation restricting portion 62 is formed on the second link member 46. The second rotation restricting portion 62 is configured to abut against the second receiving portion 60 when the opening / closing member 28 is in an open state and restrict the rotation of the opening / closing member 28 in the direction opposite to the closing direction. ing.

  Next, the operation and effect of one embodiment of the present invention will be described.

  According to the light shielding device 10 according to the embodiment of the present invention, when the light shielding member 14 is changed from the wound state to the deployed state, the support member 16 is brought into contact with the first arm portion 56, thereby The opening / closing member 28 is rotated from the closed state to the open state. On the other hand, when the light shielding member 14 is changed from the expanded state to the wound state, the support member 16 is brought into contact with the second arm portion 58, thereby rotating the opening / closing member 28 from the open state to the closed state. The Therefore, since it is not necessary to use a biasing member for the mechanism itself for opening and closing the opening and closing member 28, it is possible to suppress the load on the operating mechanism 22 while the opening and closing member 28 is in the closed state.

  Moreover, while the light shielding member 14 is changed from the intermediate state to the expanded state, the support member 16 and the first arm portion 56 are separated from each other, and while the light shielding member 14 is changed from the expanded state to the intermediate state, the support member 16 and The second arm portion 58 is separated. Therefore, during this time, for example, resistance during operation of the link mechanism 30 does not act on the support member 16, so that it is possible to further reduce the load applied to the operation mechanism 22.

  Further, when the opening / closing member 28 is in the closed state, the rotation of the opening / closing member 28 in the direction opposite to the opening direction can be restricted by the first rotation restricting portion 42, and when the opening / closing member 28 is in the open state, The rotation of the opening / closing member 28 in the direction opposite to the closing direction can be restricted by the second rotation restricting portion 62. Thereby, when the opening / closing member 28 is in the open state or the closed state, it is possible to prevent the opening / closing member 28 from exceeding the open position or the closed position due to unexpected vibration or the like.

  Further, since the opening / closing member 28 is urged in the closing direction by the torsion spring 38, the opening / closing member 28 can be maintained in the closed state even if vibration or the like occurs.

  Further, since the second link member 46 is urged by the torsion spring 48 in the direction in which the opening / closing member 28 is rotated in the opening direction, the opening / closing member 28 can be opened more smoothly.

  Further, the urging force by the torsion spring 38 acting on the opening / closing member 28 in the closed state of the opening / closing member 28 is set higher than the urging force by the torsion spring 48 acting on the opening / closing member 28. Therefore, even when the torsion spring 48 is used, it is possible to suppress the load on the operating mechanism 22 while the opening / closing member 28 is in the closed state.

  Further, when the opening / closing member 28 is in the closed state, the straight line L1 connecting the first rotation connection portion 32 and the second rotation connection portion 50, the second rotation connection portion 50, and the third rotation connection portion 52, A straight line L2 connecting the two is substantially perpendicular. Therefore, when the opening / closing member 28 is rotated in the opening direction from the closed state, the force is effectively transmitted from the second link member 46 to the first link member 44, so that the load applied to the operating mechanism 22 can be reduced. it can.

  In addition, when the opening / closing member 28 is in the open state, the third rotation connection portion 52 is closer to the deployment direction side of the light shielding member 14 than the straight line L3 connecting the second rotation connection portion 50 and the fourth rotation connection portion 54. Be positioned. Therefore, when the opening / closing member 28 is in the open state, for example, when a load is applied to the fourth rotating connecting portion 54 side with respect to the second rotating connecting portion 50 due to its own weight or the like, A component force acts on the third rotation connecting portion 52 in the developing direction side of the light shielding member 14. Thereby, even when an external force is applied to the opening / closing member 28 in the closing direction, the unexpected rotation of the opening / closing member 28 in the closing direction can be suppressed.

  In addition, when the opening / closing member 28 is in the open state, the fourth rotation connection portion 54 side from the straight line L1 that passes through the second rotation connection portion 50 and connects the first rotation connection portion 32 and the second rotation connection portion 50. The fourth rotation connecting portion 54 is positioned on the deployment direction side of the light shielding member 14 with respect to the perpendicular line L <b> 4. Thereby, the amount by which the third rotation connection part 52 moves to the deployment direction side of the light shielding member 14 beyond the straight line L3 connecting the second rotation connection part 50 and the fourth rotation connection part 54 can be reduced. The opening / closing member 28 can be easily held in the opening direction. In addition, since the contact time between the first arm portion 56 and the support member 16 can be shortened, the load applied to the operating mechanism 22 can be further reduced.

  Further, since the second arm portion 58 is positioned on the movement locus of the support member 16 while the opening / closing member 28 is changed between the closed state and the open state, the second arm portion 58 and the support member 16 are securely connected. Thus, the light shielding member 14 can be smoothly wound up.

  Further, the second arm portion 58 is offset in the axial direction of the winding member 12 with respect to the link mechanism 30 and the first arm portion 56. Therefore, for example, when the light shielding member 14 is in the winding state, the second arm portion 58 can be prevented from interfering with the link mechanism 30 and the first arm portion 56. Thereby, it can avoid that the opening and closing of the opening-and-closing member 28 is prevented.

  Moreover, since the 1st arm part 56, the 2nd arm part 58, the 1st rotation control part 42, and the 2nd rotation control part 62 are integrally formed in the link mechanism 30, the increase in a number of parts is carried out. It can be suppressed, and as a result, the cost can be reduced.

  In particular, since the first arm portion 56 and the second arm portion 58 are formed integrally with the second link member 46, it is possible to suppress interference with each other with the operation of the link mechanism 30. Further, the relationship between the first arm portion 56, the second arm portion 58, and the support member 16 can be easily set.

  Further, the contact portion 56A of the first arm portion 56 with the support member 16 is curved so as to be convex toward the developing direction side of the light shielding member 14 when the opening / closing member 28 is in the closed state. Thereby, since the full length of the 1st arm part 56 can be restrained, the height of the opening-and-closing member 28 in a closed state can be restrained.

  Next, a modification of one embodiment of the present invention will be described.

  In the above-described embodiment of the present invention, the first arm portion 56 is provided in the link mechanism 30, but may be provided in the opening / closing member 28 as shown in FIG. 30 and the opening / closing member 28 may be provided. Similarly, the second arm portion 58 may be provided on the opening / closing member 28, or may be provided on both the link mechanism 30 and the opening / closing member 28.

  Moreover, although the 1st rotation control part 42 was provided in the opening-and-closing member 28, as FIG. 10 shows, you may be provided in the link mechanism 30 (2nd link member 46), and a link. It may be provided in both the mechanism 30 and the opening / closing member 28. Similarly, the second rotation restricting portion 62 is provided in the link mechanism 30 (second link member 46), but may be provided in the opening / closing member 28 as shown in FIG. It may be provided in both the link mechanism 30 and the opening / closing member 28.

  Moreover, although the 1st arm part 56, the 2nd arm part 58, and the 2nd rotation control part 62 were integrally formed in the 2nd link member 46, it was made into the 2nd link member 46 and a different body. The second link member 46 may be attached. Similarly, the first rotation restricting portion 42 is formed integrally with the opening / closing member 28, but may be separated from the opening / closing member 28 and attached to the opening / closing member 28.

  Further, the light shielding device 10 has the arm-shaped first arm portion 56 and the second arm portion 58 as an example of the first contact portion and the second contact portion in the present invention. As described above, the first abutting portion 66 and the second abutting portion 68 may have a shape other than the arm shape.

  The first arm portion 56 and the second arm portion 58 are formed integrally with the second link member 46, but may be formed integrally with the first link member 44.

  In addition, the operating mechanism 22 includes the resin cable 24 as an example of the operating member, but may include other members.

  Moreover, although the light-shielding device 10 is used for rear glass in vehicles such as passenger cars, it may be used in other places.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above, and other various modifications can be made without departing from the spirit of the present invention. It is.

DESCRIPTION OF SYMBOLS 10 ... Light-shielding device, 12 ... Winding member, 14 ... Light-shielding member, 16 ... Support member, 18 ... Main body member, 20 ... Guide member, 22 ... Actuation mechanism, 24 ... Cable (actuating member), 26 ... Drive unit, 28 ... Opening / closing member, 30 ... Link mechanism, 32 ... First rotation connecting portion, 34 ... Rear package tray, 36 ... slit part (movement path), 38 ... torsion spring (closing direction biasing member), 40 ... first receiving part, 42 ... first rotation restricting part, 44 ... first One link member, 46 ... second link member, 48 ... torsion spring (opening direction biasing member), 50 ... second rotation connection portion, 52 ... third rotation connection portion, 54 ... 4th rotation connecting part, 56 ... first arm part (first contact part), 58 ... second arm part (second contact part), 60 And second receiving unit, 62 ... second rotation restricting portion, 66 ... first contact portion, 68 ... second contact portion

Claims (12)

A light-shielding member that is formed in a sheet shape and can take up a winding state wound around the winding member and a developed state developed from the winding member;
A support member that is provided at an unfolded end of the light shielding member and changes the light shielding member between the winding state and the deployed state as it is moved by an operating member;
A body member for supporting the winding member;
An opening / closing member connected to the main body member so as to be rotatable, and opening / closing a movement path of the support member;
A link mechanism for supporting the opening / closing member with respect to the body member;
Provided in at least one of the link mechanism and the opening / closing member, and when the support member is moved in a direction to change the light shielding member from the winding state to the unfolded state, the contact member is brought into contact with the support member and the A first contact portion for rotating the opening / closing member from the closed state to the open state;
Provided in at least one of the link mechanism and the opening / closing member, and when the support member is moved in a direction in which the light shielding member is changed from the deployed state to the wound state, the contact member abuts on the support member and A second contact portion for rotating the opening and closing member from the open state to the closed state;
A light-shielding device. Provided in at least one of the link mechanism and the opening / closing member, and abuts on the first receiving portion when the opening / closing member is in a closed state, thereby restricting the rotation of the opening / closing member in the direction opposite to the opening direction. A first rotation restricting portion;
Provided in at least one of the link mechanism and the opening / closing member, and abuts against a second receiving portion when the opening / closing member is in an open state, thereby restricting rotation of the opening / closing member in a direction opposite to the closing direction. A second rotation restricting portion;
The light-shielding device according to claim 1, comprising: The first contact portion, the second contact portion, the first rotation restriction portion, and the second rotation restriction portion are formed integrally with at least one of the link mechanism and the opening / closing member. Yes,
The light-shielding device according to claim 2. A closing direction biasing member for biasing the opening and closing member in the closing direction;
The light shielding device according to claim 3. The link mechanism has a first link member whose one end is rotatably connected to the opening and closing member;
A second link member having one end side rotatably connected to the other end side of the first link member and the other end side rotatably connected to the main body member;
An opening direction biasing member that biases the second link member in a direction of rotating the opening / closing member in the opening direction;
The biasing force by the closing direction biasing member acting on the opening / closing member in the closed state of the opening / closing member is set higher than the biasing force by the opening direction biasing member acting on the opening / closing member,
The light-shielding device according to claim 4. The opening / closing member is rotatably connected to the main body member via a first rotation connecting portion,
The link mechanism has a first link member whose one end is rotatably connected to the opening / closing member via a second rotation connecting portion, and a third rotation connection whose one end is connected to the other end of the first link member. A second link member that is pivotably connected via a portion and whose other end is pivotally connected to the main body member,
The first contact portion is provided on the second link member,
The straight line connecting the first rotary connecting part and the second rotary connecting part and the straight line connecting the second rotary connecting part and the third rotary connecting part are such that the opening / closing member is in a closed state. At a certain right angle,
The light-shielding device according to any one of claims 1 to 5. The opening / closing member is rotatably connected to the main body member via a first rotation connecting portion,
The link mechanism has a first link member whose one end is rotatably connected to the opening / closing member via a second rotation connecting portion, and a third rotation connection whose one end is connected to the other end of the first link member. A second link member that is pivotably connected via a portion, and has the other end side rotatably connected to the main body member via a fourth rotary connecting portion,
The third rotation connecting portion is positioned closer to the deployment direction of the light shielding member than a straight line connecting the second rotation connecting portion and the fourth rotation connecting portion when the opening / closing member is in an open state. To be
The light-shielding device according to any one of claims 1 to 6. When the opening / closing member is in the open state, the fourth rotation connection portion passes through the second rotation connection portion and connects the first rotation connection portion and the second rotation connection portion from the straight line. With respect to the perpendicular line lowered to the fourth rotation connecting part side, it is located on the development direction side of the light shielding member,
The light-shielding device according to claim 7. The second contact portion is positioned on a movement locus of the support member while the opening / closing member changes between a closed state and an open state.
The light-shielding device according to any one of claims 1 to 8. The first contact portion and the second contact portion are formed in an arm shape extending from at least one of the link mechanism and the opening / closing member,
The second contact portion is offset in the axial direction of the winding member with respect to the link mechanism and the first contact portion.
The light-shielding device according to any one of claims 1 to 9. The link mechanism has a first link member whose one end is rotatably connected to the opening and closing member;
A second link member having one end side rotatably connected to the other end side of the first link member and the other end side rotatably connected to the main body member;
The first contact portion and the second contact portion are formed integrally with the first link member or the second link member,
The light shielding device according to claim 10. The first abutting portion is positioned on a movement locus of the support member when the opening / closing member is in a closed state, and the light shielding member is moved from the winding state to the winding state and the deployed state. While being changed to the intermediate state, the support member is in contact with the support member to rotate the opening / closing member from the closed state to the open state, and while the light shielding member is changed from the intermediate state to the deployed state, the support member Separated from
The second abutting portion is positioned on a movement locus of the support member when the opening / closing member is in an open state, and the support member while the light shielding member is changed from the deployed state to the intermediate state. While being separated from the member and while the light shielding member is changed from the intermediate state to the winding state, the opening and closing member is rotated from the open state to the closed state by contacting the support member.
The light-shielding device according to any one of claims 1 to 11.