JP2008230308A - Light shielding device and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To actuate a link mechanism more smoothly, and to favorably improve working efficiency in positional adjustment of the link mechanism. <P>SOLUTION: While the link mechanism 16 is positioned at a folded attitude by a contacting section 64 and a contacted section 66, the position of a supporting member 60 relative to a base member 18, and by extension, the position of a pair of middle joints 50 is adjusted by a long hole 70, thereby suppressing variations in the position of the joints 50. By this constitution, driving force transmission efficiency from a lower link 46 to an upper link 48 can be improved, therefore, the link mechanism 16 can be actuated more smoothly. Moreover, the positioning of the link mechanism 16 to the folded attitude, and the positional adjustment of the middle joints 50 in the link mechanism 16 positioned at this folded attitude can be performed with a supporting member 60 as reference. Accordingly, the working efficiency in positional adjustment of the middle joints 50 can be favorable. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a light shielding device, and more particularly, to a light shielding device configured to deploy or store a screen in accordance with an operation of a link mechanism and a method for manufacturing the same.

Conventionally, as this kind of light shielding device, for example, the following is known (for example, see Patent Document 1). In the example described in Patent Document 1, a link mechanism including a pair of left and right link arms is provided. The screen is unfolded with the displacement of the link mechanism from the folded position to the extended position, and is accommodated with the displacement of the link mechanism from the expanded position to the folded position.
Japanese Patent Laid-Open No. 2001-311375 (FIG. 1)

  However, in the light shielding device configured to expand or store the screen in accordance with the displacement of this type of link mechanism, in order to stably expand or store the screen, variations between components constituting the link mechanism are required. Therefore, it is necessary to operate the link mechanism more smoothly. Moreover, when adjusting a link mechanism in order to operate a link mechanism more smoothly, it is desirable that the workability | operativity is favorable.

  The present invention has been made in view of the above problems, and an object of the present invention is to make it possible to more smoothly operate the link mechanism for deploying or storing the screen, and to adjust the position of the link mechanism. An object of the present invention is to provide a light-shielding device and a method for manufacturing the same.

  In order to solve the above-described problem, a light-shielding device according to claim 1 is connected to a driving unit that generates a driving force, a link lever that is rotated by the driving force of the driving unit, and the link lever. A link mechanism, a sheet-like screen that is developed or stored in accordance with the operation of the link mechanism, a support member that rotatably supports the link lever, and a base member that fixes the support member; Positioning means provided between the link lever and the support member, for positioning the link mechanism in a predetermined posture, and provided between the support member and the base member. And a position adjustment fixing means for fixing the position of the support member in an adjustable manner.

  In the light-shielding device according to the first aspect, when the driving unit generates a driving force, the link lever is rotated by receiving the driving force of the driving unit, and the link mechanism is operated as the link lever rotates. Then, the sheet-like screen is developed or stored with the operation of the link mechanism.

  By the way, in the light shielding device configured to expand or store the screen in accordance with the displacement of this type of link mechanism, in order to stably expand or store the screen, variations between components constituting the link mechanism. Therefore, it is necessary to operate the link mechanism more smoothly.

  In this regard, in the light shielding device according to claim 1, positioning means for positioning the link mechanism in a predetermined posture is provided between the link lever and the support member, and the support member, the base member, Between them, there is provided position adjustment fixing means capable of adjusting the position of the support member relative to the base member, and consequently the position of the link mechanism. Therefore, by adjusting the position of the support member relative to the base member by the position adjustment fixing means, and thus the position of the link mechanism in a state where the link mechanism is positioned in a predetermined posture by the positioning means at the stage of the manufacturing process, Variations between the parts constituting the link mechanism can be suppressed. Thereby, since the driving force transmission efficiency of each part of the link mechanism can be improved, the link mechanism can be operated more smoothly.

  In the light shielding device according to claim 1, the positioning of the link mechanism to a predetermined posture and the position adjustment of the link mechanism positioned to the predetermined posture can be performed with reference to the support member. it can. Therefore, the workability when adjusting the position of the link mechanism is better than when the positioning of the link mechanism and the position adjustment of the link mechanism are based on different members.

  Thus, according to the light-shielding device of the first aspect, the link mechanism for deploying or storing the screen can be operated more smoothly, and workability when adjusting the position of the link mechanism is also improved. Can be good.

  The light-shielding device according to claim 2 is the light-shielding device according to claim 1, wherein the link mechanisms are provided on both sides in the width direction of the screen and are rotated in accordance with the rotation of the link lever. It is characterized by having a first link and a pair of second links rotatably connected to each of the pair of first links via a rotation shaft portion.

  According to the light-shielding device of the second aspect, by adjusting the position of the support member with respect to the base member by the position adjustment fixing means, it is possible to suppress the variation of the pair of rotating shaft portions provided in the link mechanism. Moreover, the link mechanism can be operated more smoothly by suppressing variations in the positions of the pair of rotation shaft portions provided in the link mechanism.

  The light-shielding device according to claim 3 is the light-shielding device according to claim 1 or 2, wherein the link mechanism is displaced from the folded posture to the extended posture under the driving force of the driving means, When the screen is in the stowed state, the folding position is set, and the positioning means positions the link mechanism in the folding position.

  According to the light shielding device of the third aspect, since the position of the link mechanism can be adjusted in a state where the link mechanism is positioned in the folded posture by the positioning means, the link mechanism in the folded posture is activated. The variation between the components in can be suppressed. Thereby, the movement at the time of starting of the link mechanism made into the folding attitude | position can be made smoother.

  According to the light shielding device of the third aspect, when the link mechanism is positioned in the folded position, the screen is stored, so that the position adjustment of the link mechanism can be performed in a state where the entire device is compact. It can be performed. Thereby, workability | operativity at the time of adjusting the position of a link mechanism can be made more favorable.

  A light-shielding device according to a fourth aspect is the light-shielding device according to any one of the first to third aspects, wherein the positioning means is provided at a position away from the rotation shaft of the link lever. It is characterized by that.

  According to the light-shielding device of the fourth aspect, since the positioning means is provided at a position away from the rotation axis of the link lever, the position of the rotation axis of the link lever is not shifted and the link mechanism is moved in advance. Positioning to a predetermined posture can be performed. Thereby, the precision of the position adjustment of a link mechanism can be improved.

  The light-shielding device according to claim 5 is the light-shielding device according to any one of claims 1 to 4, wherein the positioning means is provided on the contact portion provided on the link lever and the support member. And a contacted part that is in contact with the contact part.

  According to the light-shielding device of the fifth aspect, the contact mechanism provided on the link lever and the contacted part provided on the support member are brought into contact with each other, thereby bringing the link mechanism into a predetermined posture. Can be positioned. In addition, the link mechanism can be reliably positioned to a predetermined posture with a simple configuration in which the contact portion and the contacted portion are provided on the link lever and the support member.

  The light-shielding device according to claim 6 is the light-shielding device according to any one of claims 1 to 5, wherein the position adjustment fixing means is provided on at least one of the support member and the base member. A long hole and a fixing tool configured to be movable in the long hole and fixing the support member and the base member are provided.

  According to the light-shielding device according to claim 6, the position of the link mechanism is adjusted by moving the fixing tool into the elongated hole provided in at least one of the support member and the base member to adjust the position of the support member with respect to the base member. Adjustments can be made. Then, the link mechanism can be held at a desired position by fixing the support member and the base member with the fixture when the position adjustment of the link mechanism is completed. Further, the position of the link mechanism can be reliably adjusted with a simple configuration in which a long hole is provided in at least one of the support member and the base member.

  In order to solve the above-mentioned problem, the manufacturing method of the light shielding device according to claim 7 is the manufacturing method of the light shielding device according to claim 1, wherein the link mechanism is predetermined by the positioning unit. A step of adjusting the position of the support member with respect to the base member by the position adjustment fixing means in a state of being positioned in a posture is characterized.

  In the method for manufacturing the light shielding device according to claim 7, in the state where the link mechanism is positioned in a predetermined posture by the positioning means, the position of the support member relative to the base member by the position adjustment fixing means, and thus the position of the link mechanism is determined. Since the adjustment is performed, it is possible to suppress the variation between the parts constituting the link mechanism and to operate the link mechanism more smoothly.

  In the method for manufacturing the light shielding device according to claim 7, the positioning of the link mechanism to a predetermined posture and the position adjustment of the link mechanism positioned in the predetermined posture are used as a reference. Do. Therefore, the workability when adjusting the position of the link mechanism is better than when the positioning of the link mechanism and the position adjustment of the link mechanism are based on different members.

  Thus, according to the manufacturing method of the light-shielding device according to claim 7, the link mechanism for deploying or storing the screen can be operated more smoothly, and the position of the link mechanism can be adjusted. Workability can also be improved.

  Furthermore, in order to solve the above-mentioned problem, the manufacturing method of the light shielding device according to claim 8 is the manufacturing method of the light shielding device according to claim 2, wherein the link mechanism is predetermined by the positioning means. Including the step of adjusting the position of the support member with respect to the base member by the position adjusting and fixing means so that the positions of the pair of rotating shaft portions coincide with each other in the unfolding direction of the screen in a state of being positioned at the positions. Features.

  In the method for manufacturing the light shielding device according to claim 8, the position of the pair of rotation shaft portions is aligned in the deployment direction of the screen in a state where the link mechanism is positioned in a predetermined posture by the positioning unit. Since the adjustment fixing means adjusts the position of the support member with respect to the base member, and thus the position of the link mechanism, this suppresses variations in the position of the pair of rotating shaft portions constituting the link mechanism, thereby making the link mechanism smoother. Can be activated.

  Further, in the method for manufacturing the light shielding device according to claim 8, the positioning of the link mechanism to a predetermined posture and the position adjustment of the link mechanism positioned in the predetermined posture are used as a reference. Do. Therefore, the workability when adjusting the position of the link mechanism is better than when the positioning of the link mechanism and the position adjustment of the link mechanism are based on different members.

  Thus, according to the manufacturing method of the light-shielding device according to claim 8, the link mechanism for deploying or storing the screen can be operated more smoothly, and the position of the link mechanism can be adjusted. Workability can also be improved.

  First, the configuration of the light shielding device 10 according to an embodiment of the present invention will be described.

  FIG. 1 is a perspective view showing the overall configuration of a light shielding device 10 according to an embodiment of the present invention, FIG. 2 is a front view showing the overall configuration of the light shielding device 10, and FIG. FIG. 4 shows an overall configuration of the link lever 58, and FIG. 5 shows an overall configuration of the support member 60. 1 shows a state when the screen 12 is in the middle of deployment, and FIGS. 2 and 3 show a state when the screen 12 is wound around and stored in the winding member 26. FIG. Has been.

  A light shielding device 10 according to an embodiment of the present invention is mounted on a vehicle in order to shield a rear glass of, for example, a passenger car, and as shown in FIGS. A winding mechanism 14, a link mechanism 16, a base member 18, a drive mechanism 20, and a controller 22 are provided as main components.

  The screen 12 is made of, for example, a cloth material having a light shielding property, and is formed in a sheet shape. One end of the screen 12 is fixed to a winding member 26 described later. A flexible screen support member 24 is provided at the width direction edge portion 12 </ b> A on the development side of the screen 12. The screen support member 24 is provided along the longitudinal direction of the width direction edge portion 12 </ b> A of the screen 12, and the screen 12 is expanded in the width direction by the width direction edge portion 12 </ b> A being supported by the screen support member 24. Maintained.

  As illustrated in FIG. 3, the winding mechanism 14 includes a winding member 26, a coil spring 28, and a cover member 30. The winding member 26 is for winding the screen 12, and is formed in a longitudinal cylindrical shape. Holder caps 32 and 34 are integrally fitted to both ends of the winding member 26, and shafts 36 and 38 are rotatably held by the holder caps 32 and 34, respectively. The shafts 36 and 38 are integrally fixed to a stay 40 provided on the base member 18 (see FIG. 1). With this configuration, the winding member 26 is rotatable with respect to the base member 18 described later.

  The coil spring 28 is disposed inside the winding member 26 with one shaft 36 inserted therein. The coil spring 28 has one end 28 </ b> A fixed to the shaft 36 and the other end 28 </ b> B fixed to the holder cap 32. The coil spring 28 is radially expanded when the screen 12 is deployed from the winding member 26, and biases the winding member 26 in the direction in which the screen 12 is wound by the torsional force.

  The cover member 30 (silencer) serves to prevent interference between the coil spring 28 and the winding member 26, and is configured in a tube shape (cylindrical shape). The cover member 30 has a coil spring 28 disposed therein and is disposed inside the winding member 26.

  As shown in FIGS. 1 and 2, the link mechanism 16 includes a link rod 42, a lever 44, a lower link 46 as a first link, and an upper link 48 as a second link. ing. Each link rod 42 has one end rotatably connected to each rotation end of a link lever 58 described later, and the other end rotatably connected to each rotation end of each lever 44.

  Each lever 44 is rotatably connected to both ends of the base member 18, and each lower link 46 is integrally fixed to the rotation shaft of each lever 44 and rotated together with each lever 44. It has become so. Each upper link 48 is connected to a rotating end of each lower link 46 via an intermediate joint 50 as a rotating shaft portion, and the rotating end can be rotated to both ends of the screen support member 24 described above. It is connected to.

  The base member 18 is provided along the longitudinal direction of the winding member 26 described above. Assist springs 52 (balance springs) are provided on both ends of the base member 18, respectively. One end of each assist spring 52 is locked to the base member 18, and the other end is locked to the rotation end of each lever 44. Each assist spring 52 urges the lever 44 in the direction in which the screen 12 is deployed (in the direction of arrow R3 in FIG. 1).

  The drive mechanism 20 includes a drive motor 56 as a drive means, a link lever 58, and a support member 60, and is disposed at the center of the base member 18. The drive motor 56 is integrally assembled with the support member 60, and the link lever 58 is rotatably supported by the support member 60. The link lever 58 is connected to the output shaft 62 of the drive motor 56 and is rotated together with the output shaft 62 of the drive motor 56.

  Further, as shown in FIG. 4, a contact portion 64 formed by being bent in the axial direction is provided at the rotation end (upper end) of the link lever 58. On the other hand, as shown in FIG. 5, the support member 60 is configured in a box shape, and is in contact with the contact portion 64 on the upper side wall portion of the support member 60 configured in the box shape. A contacted portion 66 is provided. In the light shielding device 10, as shown in FIG. 2, when the link lever 58 is rotated and the contact portion 64 is brought into contact with the contacted portion 66, the screen 12 is in the storage state. That is, the link mechanism 16 is configured to be positioned in the folded posture. In the present embodiment, the abutting portion 64 and the abutted portion 66 constitute the positioning means according to the present invention.

  Further, as shown in FIG. 5, leg portions 68 extending in the width direction are provided on the four sides of the support member 60, respectively, and elongated holes 70 extending in the width direction are respectively provided on the leg portions 68. Is provided. Each of the long holes 70 is formed so as to penetrate the leg portion 68 in the plate thickness direction. Although not particularly shown, screw holes are formed at positions corresponding to the long holes 70 of the base member 18 shown in FIGS. As shown in FIGS. 1 and 2, the support member 60 is fixed to the base member 18 by inserting a bolt 72 into the elongated hole 70 and screwing it into the screw hole. In the present embodiment, the elongated hole 70, the bolt 72 as a fixing tool, and the screw hole constitute the position adjustment fixing means according to the present invention.

  For example, the controller 22 includes an electric circuit on which a CPU, a ROM, a RAM, and the like are mounted, and is configured to input a control signal output from an external control device and control the drive motor 56. ing.

  Next, a method for manufacturing the light shielding device 10 according to an embodiment of the present invention will be described.

  For example, the light shielding device 10 according to the embodiment of the present invention is manufactured as follows. That is, first, as shown in FIG. 1 and FIG. At this time, the bolt 72 is temporarily tightened, and the support member 60 is movable relative to the base member 18 within a range in which the elongated hole 70 moves relative to the bolt 72.

  Subsequently, as shown in FIG. 2, the link lever 58 is rotated to bring the contact portion 64 into contact with the contacted portion 66, and the link mechanism 16 is positioned in the folded posture (positioned to the storage position). ). In this state, the position of the support member 60 with respect to the base member 18 is adjusted so that the positions of the pair of intermediate joints 50 coincide with each other in the deployment direction of the screen 12 (arrow A direction). At this time, the positions of the pair of intermediate joints 50 are matched with each other in the developing direction of the screen 12 using, for example, a predetermined jig.

  Then, when the position of the support member 60 with respect to the base member 18 is adjusted and the positions of the pair of intermediate joints 50 coincide with each other in the deployment direction of the screen 12, the bolts 72 are tightened and the support member 60 is fixed to the base member 18. To do.

  As described above, in the light shielding device 10 according to the embodiment of the present invention, the base member is arranged so that the positions of the pair of intermediate joints 50 coincide with each other in the deployment direction of the screen 12 with the link mechanism 16 positioned in the folded posture. The position of the support member 60 with respect to 18 is adjusted.

  Next, the operation and effect of the light shielding device 10 according to one embodiment of the present invention will be described.

  In the light shielding device 10 according to an embodiment of the present invention, the drive motor 56 shown in FIG. 1 inputs a control signal (forward rotation signal) from the controller 22 and rotates forward, and the link lever 58 rotates in the R1 direction. Then, the lever 44 connected to the link lever 58 via the link rod 42 is rotated in the R3 direction. Further, when the lever 44 is rotated in the R3 direction, the lower link 46 fixed to the lever 44 is rotated in the R5 direction, and the upper link 48 connected to the lower link 46 via the intermediate joint 50 is formed. It is rotated in the R7 direction. Then, with the operation of the lower link 46 and the upper link 48, the screen 12 is pulled upward, whereby the screen 12 is deployed from the winding member 26.

  At this time, the coil spring 28 disposed inside the winding member 26 is expanded in the radial direction when the screen 12 is deployed from the winding member 26, and the winding member 26 is moved to the screen 12 by the twisting force. Is energized in the direction of winding. Accordingly, the slack of the screen 12 is prevented and the screen 12 is expanded. Then, when the lower link 46 and the upper link 48 are rotated so that the lower link 46 and the upper link 48 are linear along the vertical direction, the link mechanism 16 is in the extended posture. In addition, when the link mechanism 16 is in the extended posture, the screen 12 is in an unfolded state that covers the entire rear glass of the vehicle, for example.

  On the other hand, when the drive motor 56 is reversed by inputting a control signal (inverted signal) from the controller 22 and the link lever 58 is rotated in the R2 direction, the link lever 58 and the link rod 42 are connected. The lever 44 is rotated in the R4 direction. When the lever 44 is rotated in the R4 direction, the lower link 46 fixed to the lever 44 is rotated in the R6 direction, and the upper link 48 connected to the lower link 46 via the intermediate joint 50 is formed. It is rotated in the R8 direction.

  At this time, the winding member 26 is rotated in the direction of winding the screen 12 by the torsional force of the coil spring 28, so that the screen 12 is wound around the winding member 26. As shown in FIG. 2, when the lower link 46 and the upper link 48 are rotated and the lower link 46 and the upper link 48 overlap each other in the substantially horizontal direction, the link mechanism 16 is in the folded posture. Is done. Further, when the link mechanism 16 is in the folded posture, the screen 12 is brought into a storage state in which the screen 12 is completely wound around the winding member 26.

  By the way, in the light-shielding device 10 configured to expand or store the screen 12 in accordance with the displacement of this type of link mechanism 16, the link mechanism 16 is configured to stably expand or store the screen 12. It is necessary to suppress the variation between the components and operate the link mechanism 16 more smoothly. More specifically, in order to operate the link mechanism 16 more smoothly, the positions of the pair of intermediate joints 50 need to coincide with each other in the deployment direction of the screen 12.

  In this regard, in the light shielding device 10 according to the embodiment of the present invention, the link lever 58 and the support member 60 are provided with the contact portion 64 and the contacted portion 66 for positioning the link mechanism 16 in the folded posture. The support member 60 is provided with a long hole 70 for matching the position of the support member 60 with respect to the base member 18, and hence the position of the pair of intermediate joints 50, in the deployment direction of the screen 12. Therefore, as described above, in the manufacturing process stage, the link mechanism 16 is positioned in the folded position by the contact portion 64 and the contacted portion 66 (the state where the link mechanism 16 is positioned in the storage position). By adjusting the position of the support member 60 with respect to the member 18, and thus the position of the pair of intermediate joints 50, variation in the position of the pair of intermediate joints 50 can be suppressed. Thereby, since the driving force transmission efficiency of each part of the link mechanism 16, in particular, the driving force transmission efficiency from the lower link 46 to the upper link 48 can be improved, the link mechanism 16 can be operated more smoothly.

  Moreover, in the light-shielding device 10 according to an embodiment of the present invention, the positioning of the link mechanism 16 to the folding posture and the position adjustment of the pair of intermediate joints 50 in the link mechanism 16 positioned in the folding posture are supported. This can be done with the member 60 as a reference. Therefore, the workability when adjusting the position of the pair of intermediate joints 50 is compared with the case where the positioning of the link mechanism 16 in the folded posture and the position adjustment of the pair of intermediate joints 50 are based on different members. Is good.

  Thus, according to the light-shielding device 10 according to the embodiment of the present invention, the link mechanism 16 for deploying or storing the screen 12 can be operated more smoothly, and the positions of the pair of intermediate joints 50 can be operated. Workability at the time of adjustment can also be improved.

  In particular, according to the light-shielding device 10 according to an embodiment of the present invention, the position of the pair of intermediate joints 50 can be adjusted in a state in which the link mechanism 16 is positioned in the folded posture. The variation in the position of the pair of intermediate joints 50 when the link mechanism 16 is started can be suppressed. Thereby, the movement at the time of starting of the link mechanism 16 made into the folding attitude | position can be made smoother.

  Moreover, according to the light-shielding device 10 according to an embodiment of the present invention, when the link mechanism 16 is positioned in the folded position, the screen 12 is stored, so that the entire device is compact. The position of the pair of intermediate joints 50 can be adjusted. Thereby, workability | operativity at the time of adjusting the position of a pair of intermediate joint 50 can be made more favorable.

  Moreover, according to the light-shielding device 10 according to the embodiment of the present invention, the contact portion 64 is provided at a position away from the rotation shaft (that is, the output shaft 62) of the link lever 58. It is possible to position the link mechanism 16 in the folded posture without shifting the position of the rotation shaft. Thereby, the precision of the position adjustment of a pair of intermediate joint 50 can be improved.

  Moreover, according to the light-shielding device 10 according to the embodiment of the present invention, the link mechanism 16 can be folded reliably with a simple configuration in which the contact portion 64 and the contacted portion 66 are provided on the link lever 58 and the support member 60. Positioning to the posture can be performed. Further, the position adjustment of the pair of intermediate joints 50 can be reliably performed with a simple configuration in which the long hole 70 is provided in the support member 60. Thereby, the increase in manufacturing cost can be prevented.

  Next, a modified example of the light shielding device 10 according to an embodiment of the present invention will be described.

  In the above embodiment, the support member 60 is provided with the long hole 70 and the base member 18 is provided with the screw hole. However, the support member 60 is provided with the through hole and the base member 18 is provided with the long hole 70. May be. The support member 60 may be fixed to the base member 18 by inserting a bolt 72 into the through hole and the long hole 70 and screwing a nut to the tip thereof. In this case, the position of the support member 60 with respect to the base member 18 and thus the position of the pair of intermediate joints 50 can be adjusted by temporarily setting the bolts 72 and the nuts.

  Further, in the embodiment or the modified example, the elongated hole 70 is provided in one of the support member 60 and the base member 18, but the elongated hole 70 may be provided in both the support member 60 and the base member 18. good. Even in this case, the position of the support member 60 with respect to the base member 18, and thus the position of the pair of intermediate joints 50 can be adjusted.

  Further, in the above embodiment, the link mechanism 16 is configured to be positioned in the folded posture (storage position) when the contact portion 64 contacts the contacted portion 66. May be configured to be positioned in the extended posture (deployed position), and the link mechanism 16 may be configured to be positioned at an intermediate position between the folded posture and the extended posture.

It is a perspective view showing the whole light shielding device composition concerning one embodiment of the present invention. It is a front view which shows the whole structure of the light-shielding apparatus which concerns on one Embodiment of this invention. It is a principal part expanded sectional view of the light-shielding apparatus which concerns on one Embodiment of this invention. It is a figure which shows the whole structure of the link lever which concerns on one Embodiment of this invention, (A) is a top view, (B) is a rear view, (C) is a side view. It is a figure which shows the whole structure of the supporting member which concerns on one Embodiment of this invention, (A) is a top view, (B) is a front view, (C) is a side view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Shading device, 12 ... Screen, 12A ... Edge in width direction, 14 ... Winding mechanism, 16 ... Link mechanism, 18 ... Base member, 20 ... Drive mechanism, 22 ... Controller, 24 ... Screen support member, 26 ... Winding Take-up member, 28 ... Coil spring, 30 ... Cover member, 32, 34 ... Holder cap, 36, 38 ... Shaft, 40 ... Stay, 42 ... Link rod, 44 ... Lever, 46 ... Lower link (first link), 48 ... upper link (second link), 50 ... intermediate joint (rotating shaft), 52 ... assist spring, 56 ... drive motor (drive means), 58 ... link lever, 60 ... support member, 62 ... output shaft (link) Rotating shaft of the lever), 64 ... Abutting part (part of the positioning means), 66 ... Abutted part (part of the positioning means), 68 ... Leg part, 70 ... Long hole (Position adjustment fixing hand) Some), 72 ... bolt (part of the position adjusting fixing means fixing member)

Claims (8)

Driving means for generating a driving force;
A link lever that is rotated by receiving a driving force of the driving means;
A link mechanism coupled to the link lever;
A sheet-like screen that is developed or stored in accordance with the operation of the link mechanism;
A support member that rotatably supports the link lever;
A base member for fixing the support member;
A positioning means provided between the link lever and the support member for positioning the link mechanism in a predetermined posture;
A position adjustment fixing means provided between the support member and the base member for fixing the position of the support member relative to the base member in an adjustable manner;
A light-shielding device comprising: The link mechanism is
A pair of first links provided on both sides of the screen in the width direction and rotated in accordance with the rotation of the link lever;
A pair of second links rotatably connected to each of the pair of first links via a rotation shaft portion;
The light-shielding device according to claim 1, comprising: The link mechanism receives the driving force of the driving means and is displaced from the folded posture to the extended posture, and is in the folded posture when the screen is in the storage state.
The light shielding device according to claim 1, wherein the positioning unit positions the link mechanism in the folded posture.   4. The light shielding device according to claim 1, wherein the positioning unit is provided at a position away from a rotation axis of the link lever. 5. The positioning means includes
A contact portion provided on the link lever;
A contacted portion provided on the support member and in contact with the contact portion;
5. The light-shielding device according to claim 1, wherein the light-shielding device is configured to include: The position adjustment fixing means is
An elongated hole provided in at least one of the support member and the base member;
A fixture configured to be movable in the elongated hole and for fixing the support member and the base member;
The light-shielding device according to claim 1, wherein the light-shielding device is provided. It is a manufacturing method of the light-shielding device according to claim 1,
A method for manufacturing a light shielding device, comprising: a step of adjusting a position of the support member with respect to the base member by the position adjustment fixing unit in a state where the link mechanism is positioned in a predetermined posture by the positioning unit. . It is a manufacturing method of the light-shielding device according to claim 2,
In a state where the link mechanism is positioned at a predetermined position by the positioning means, the position adjusting and fixing means relative to the base member is adjusted by the position adjusting and fixing means so that the positions of the pair of rotating shaft portions coincide with each other in the deployment direction of the screen. The manufacturing method of the light-shielding apparatus characterized by including the process of adjusting the position of a supporting member.

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