JP6473313B2 - Shielding device - Google Patents

Description

  The present invention relates to a shielding device that enables a suspended double screen to be relatively moved in the vertical direction.

  2. Description of the Related Art Conventionally, there is a roll screen that can adjust the amount of light collected indoors by relatively moving a double-hung screen suspended vertically.

  The screen in such a roll screen has a transmissive part that partially transmits light and a light-shielding part that blocks light, for example, alternately formed in stripes, and is supported in a suspended state in a state in which the screen is overlapped. ing. Then, by operating the operating means, the front and back screens are moved relative to each other in the vertical direction, and the amount of light collected can be adjusted by adjusting the overlap between the transmission part and the light shielding part.

  For example, in order to facilitate the adjustment of the length of the screen, when one end is fixed to the take-up rod and the screen is suspended and folded by a weight member and the other end is fixed to the fixing member, The structure which accommodates the length of the said screen so that adjustment is possible is disclosed (for example, refer patent document 1).

Japanese Patent No. 5111035

  As disclosed in Patent Document 1 described above, in a roll screen that allows a suspended double screen to be relatively moved in the vertical direction, one end of the screen is wound on a winding means (for example, a winding rod or a winding rod). The other end of the screen is fixed to a fixing means (for example, a fixing member or a support shaft). Then, the entire double screen can be moved up and down by relative movement by the lifting operation, so that the whole screen can be switched between the transmission state and the light shielding state.

  On the other hand, in the shielding device, for example, there is a request to divide the upper and lower portions of the screen and adjust the amount of light extraction different between the upper and lower portions of the screen. Such adjustment of the amount of light extraction cannot be realized with a roll screen.

  More specifically, the amount of light can be adjusted so that the upper part of the screen is in the daylighting state and the lower part of the screen is in the light shielding state, and vice versa. No possible roll screen is known.

  For this reason, in order to be able to adjust the amount of light collected to be different between the upper part and the lower part of the screen, it cannot be realized with the existing roll screen as disclosed in Patent Document 1, and further ingenuity is required. Become.

  In view of the above problems, an object of the present invention is to provide a shielding device capable of relatively moving a suspended double screen in the vertical direction.

Shielding device of the present invention, suspended always double screen sent down a shielding device which can move relatively in the vertical direction, the dual vertically movably said at predetermined quantity of the first screen of the screen First dough attachment means for attaching the upper end of the first screen (in the example of each embodiment described later, the winding pipe 9 or the support pipe 60), and the upper end of the second screen of the double screens Second fabric attachment means to be attached (in the example of each embodiment to be described later, a fabric presser 64a attached to the support shaft 7 or the attachment portion 64 of the attachment frame 2), the first fabric attachment means, Mounting support means for supporting the second fabric attachment means (in the example of each embodiment described later, mounting frame 2), and a predetermined position on one of the first screen and the second screen As a fixed part The suspension support means suspended from the attachment support means (in the example of each embodiment described later, the switching cords 31a, 31b, 31c or the switching tapes 51a, 51b, 51c) are positioned above and below the fixed portion. Switching operation means (in the example of each embodiment to be described later, the switching operation grip 30 or the switching operation code 56) that adjustably operates so that the light intensity of the dual screens to be in different states is provided. And

Further, the shielding device of the present invention, the dual screen (in the example of the first to third embodiments described below, wait bar 5) one SCREEN predetermined weight member folded through the is configured to the first screen and the second sCREEN, (in the example of the first to third embodiments described below, the winding pipe 9) said first fabric attachment means, said dual screen The first screen can be wound up so as to be able to move up and down, and operating means that can operate winding by the first fabric attaching means (in the examples of the first to third embodiments to be described later, A code 3) is further provided.

  Further, in the shielding device of the present invention, the suspension support means includes a plurality of switching cords (in the example of the first embodiment to be described later, switching cords 31a, 31b, and 31c) that suspend and support the fixed portion. The switching operation means guides each other end of the plurality of switching cords via the attachment support means, and is suspended from a part of the attachment support means and connected to a switching operation grip (in the first embodiment described later). The example is characterized by comprising a switching operation grip 30).

  In the shielding device of the present invention, the suspension support means has a plurality of positioning tapes or cords (seconds described later) having one end attached to the fixing portion and the other end attached to the attachment support means. In the example of the embodiment, positioning tapes 51a, 51b, 51c) are provided, and the second fabric attaching means (in the example of the second embodiment to be described later, the support shaft 7) has the second screen in a predetermined amount. The switching operation means is configured to be capable of extra winding, and the switching operation means is an operating mechanism (in the example of the second embodiment to be described later) that allows the second screen to be unwinded by the second fabric attaching means. , A switching pulley 55) and a switching operation code that operates the operation mechanism and adjusts the amount of collected light in different states.

  Further, in the shielding device of the present invention, the suspension support means has a plurality of positioning tapes or cords (one to be described later) having one end attached to the fixed portion and the other end attached to the attachment support means. In the example of the embodiment, positioning tapes 51a, 51b, 51c) are provided, and the second fabric attaching means (support shaft 7 in the example of the third embodiment to be described later) causes the second screen to hang down. A movable mechanism that suspends and supports the movable body in a predetermined length, and the switching operation means includes a plurality of switching cords for attaching one end to the movable mechanism in the second fabric attaching means, and the attachment supporting means. A switching operation grip (which is a switching operation grip 30 in the example of the third embodiment to be described later) that guides the other ends of the plurality of switching cords and hangs down from a part of the mounting support means. It is characterized by

  In the shielding device of the present invention, the suspension support means (in the examples of the first to third embodiments described later), the switching cords 31a, 31b, and 31c, or the positioning tapes 51a, 51b, and 51c) When the first screen is taken up by the fabric attaching means (in the example of the first to third embodiments described later, the take-up pipe 9), the material can be taken up together with the first screen. And

  Further, in the shielding device of the present invention, the double screen is individually suspended as the first screen and the second screen, and the first fabric attaching means (in the example of the fourth embodiment described later, The support pipe 60) is characterized in that the first screen can be moved up and down by the predetermined amount capable of adjusting the light intensity of the double screen.

  In the shielding device of the present invention, the suspension support means (in the example of each embodiment described later, the switching cords 31a, 31b, and 31c, or the positioning tapes 51a, 51b, and 51c) are provided between the double screens. It is comprised so that the said fixing | fixed part may be suspended and inserted.

  According to this invention, it can be set as the shielding apparatus which can be adjusted so that it may become respectively different light quantity in the upper part and lower part of a screen. For example, the shielding device can be used to adjust the light intensity so that the upper part of the screen is in the daylighting state and the lower part of the screen is in the light shielding state, and vice versa. Can do. In addition, it is possible to easily adjust the positions of the upper and lower portions of the screen that have different light amounts.

It is a front view which shows schematic structure of the shielding apparatus (roll screen) of 1st Embodiment by this invention. It is a side see-through | perspective view which shows schematic structure of the shielding apparatus (roll screen) of 1st Embodiment by this invention. It is a disassembled perspective view which shows schematic structure of the periphery of the operation plate in the shielding apparatus (roll screen) of 1st Embodiment by this invention. (A), (b), (c) is operation | movement explanatory drawing of the operation plate in the shielding apparatus (roll screen) of 1st Embodiment by this invention. (A), (b), (c) is operation | movement explanatory drawing of the light control switching mechanism in the shielding apparatus (roll screen) of 1st Embodiment by this invention. It is a front view which shows schematic structure of the shielding apparatus (roll screen) of 2nd Embodiment by this invention. (A), (b), (c) is operation | movement explanatory drawing of the light control switching mechanism in the shielding apparatus (roll screen) of 2nd Embodiment by this invention. It is a front view which shows schematic structure of the roll screen of 3rd Embodiment by this invention. It is a disassembled perspective view which shows schematic structure of the periphery of the operation plate in the shielding apparatus (roll screen) of 3rd Embodiment by this invention. (A), (b), (c) is operation | movement explanatory drawing of the light control switching mechanism in the shielding apparatus (roll screen) of 3rd Embodiment by this invention. (A), (b) is the front view and side view which respectively show the outline of the shielding apparatus (light control type screen) of 4th Embodiment by this invention. (A), (b) is the front view and side view explaining the operation | movement of the shielding apparatus (dimming screen) of 4th Embodiment by this invention, respectively.

  Hereinafter, the shielding device (roll screen 1 or dimming screen 100) according to each embodiment of the present invention will be described with reference to the drawings. In the specification of the present application, the upper and lower sides of the shielding device shown in FIG. 1 and the like are shown in the upper direction (or upper side) and the lower direction (or lower side) according to the direction in which the screen 4 is suspended. The left direction in the figure is defined as the left side of the shielding device, and the right direction in the figure is defined as the right side of the shielding device. In the example described below, the front side (or the indoor side) is the front side of the shielding device shown in FIG. 1, and the opposite side is the rear side (or the outdoor side). The term “direction” refers to a direction perpendicular to the illustrated surface in the front view of FIG.

[First Embodiment]
(Configuration of shielding device)
First, with reference to FIG. 1 thru | or FIG. 5, the structure of the shielding apparatus (roll screen 1) of 1st Embodiment by this invention is demonstrated. FIG. 1 is a front view showing a schematic configuration of a shielding device (roll screen 1) according to a first embodiment of the present invention, and FIG. 2 is a schematic diagram of the shielding device (roll screen 1) according to the first embodiment of the present invention. It is a side perspective drawing which shows a structure. FIG. 3 is an exploded perspective view showing a schematic configuration around the operation plate 6 in the shielding device (roll screen 1) according to the first embodiment of the present invention. 4A, 4B, and 4C are explanatory views of the operation of the operation plate 6 in the shielding device (roll screen 1) according to the first embodiment of the present invention. FIGS. 5A, 5B, and 5C are operation explanatory views of the dimming switching mechanism in the shielding device (roll screen 1) according to the first embodiment of the present invention.

  In the shielding device (roll screen 1) shown in FIGS. 1 and 2, support members 2a and 2b are fixed to both ends of a mounting frame 2, and a fixed shaft 11 extending from the support members 2a and 2b is interposed between the support members 2a and 2b. A cylindrical winding pipe 9 is rotatably supported.

  An operation pulley 10 is provided at the right end portion of the winding pipe 9, and an endless operation cord 3 hung on the operation pulley 10 is suspended. And it is comprised so that the winding pipe 9 can be rotationally operated by operation of the operation cord 3, and the surface of the operation pulley 10 on which the operation cord 3 is hung has a highly frictional surface shape. The operation cord 3 may be formed of a ball chain, and the surface of the operation pulley 10 on which the ball chain is hung may be configured to have irregularities that are shaped to fit the ball portion of the ball chain.

  An operation plate 6 is provided between the support member 2 a and the operation pulley 10 so as to be rotatable relative to the take-up pipe 9. Below the operation plate 6, one end of a cylindrical support shaft 7 extending between the support members 2a and 2b is attached. The specific configuration and operation of the operation plate 6 will be described later in detail.

  A support plate 8 is provided between the support member 2 b and the left end of the take-up pipe 9 so as to be rotatable relative to the take-up pipe 9. The ends are attached. The shape of the support plate 8 of the present embodiment is substantially the same as the shape of the operation plate 6 except that the later-described code guide portions 12 and 13 are not provided. However, the outer shape of the support plate 8 may be different from the outer shape of the operation plate 6 as long as the support plate 8 can rotate relative to the winding pipe 9 and the other end of the support shaft 7 is attached. Good.

  The winding pipe 9 is attached to one side of the screen 4 so as to be able to wind, and is suspended from the winding pipe 9. The screen 4 is suspended from the winding pipe 9 and turned back through a weight bar 5 functioning as a weight member. The other side is attached to the support shaft 7. A roller 15 that is rotatably supported by both end portions of the weight bar 5 is inserted into the lower end portion of the screen 4 that is suspended between the winding pipe 9 and the support shaft 7. Accordingly, the screen 4 is stretched based on the weight of the weight bar 5.

  When the operation cord 3 is operated to rotate the winding pipe 9 in the screen winding direction, the weight bar 5 is raised, and when the winding pipe 9 is rotated in the screen unwinding direction, the weight bar 5 is lowered.

  Further, in the take-up pipe 9, a spring motor that reduces the operating force when the screen 4 is wound is housed on the left end side, and a stopper device that prevents the weight of the screen 4 from falling down is housed on the right end side. Not shown).

  The screen 4 includes a transmissive portion 4b that partially transmits light and a light-shielding portion 4a that blocks light, which are alternately formed in, for example, a stripe shape, and is supported in a suspended state in a state where the screen 4 is overlapped. Therefore, the amount of light collected can be adjusted by operating the operation code 3 to relatively move the front and rear screens 4 in the vertical direction to adjust the overlapping state between the transmission part 4b and the light shielding part 4a.

  Next, referring to FIG. 3 together with FIGS. 1 and 2, a specific configuration of the operation plate 6 and its periphery will be described. The operation pulley 10 is provided with a through-hole for making a rotation shaft with respect to the fixed shaft 11 extending from the support member 2a, and the winding pipe 9 is rotatably supported by the fixed shaft 11 as the operation pulley 10 rotates. The On the left end side of the operation pulley 10, a fitting portion 25 that fits on the inner peripheral surface of the right end of the winding pipe 9 is provided. Further, the left end portion of the operation pulley 10 is connected to a stopper device housed in the take-up pipe 9 so that the input rotation of the operation pulley 10 is allowed and the rotation from the take-up pipe 9 is prevented ( Not shown).

  A substantially cylindrical rotation support portion 24 is provided at the right end portion of the operation pulley 10, and a round hole-shaped rotation receiving portion 23 having a slightly larger diameter than the rotation support portion 24 is provided in the operation plate 6. It has been. Therefore, the operation plate 6 is supported so as to be rotatable relative to the operation pulley 10 and the take-up pipe 9. Note that the operation plate 6 may be configured to be capable of preventing relative rotation of a certain angle or more.

  A hole 22 capable of supporting the support shaft 7 is provided below the operation plate 6. One end of the support shaft 7 can be attached to the support shaft 7 by a holding member 21 such as a rivet, and is held so as to extend between the support members 2a and 2b. The support shaft 7 may be attached to the operation plate 6 so as to be rotatable or non-rotatable. If the ratchet mechanism etc. which can be rotated and hold | maintained in a rotation position are provided, the height of the weight bar 5 in the lower limit state of the screen 4 can be finely adjusted.

  Further, the cord cover 20 is fixed so as not to rotate with respect to the fixed shaft 11 (or the support member 2a) so that the operation cord 3 mounted on the operation pulley 10 does not come off the operation pulley 10 and does not slip. (See FIG. 1).

  On the left end surface of the operation plate 6, two cord guide portions 12 and 13 extending in a columnar shape in the illustrated example are provided. The cord guide 12 guides one end (front side) of the endless operation cord 3 suspended from the operation pulley 10 so as to be suspended from above the cord guide 12, and the cord guide 13 is suspended from the operation pulley 10. The other end (rear side) of the endless operation cord 3 is guided so as to be suspended from above the cord guide portion 13 and below the cord guide portion 12 (see FIG. 2).

  The operation plate 6 configured in this way is configured to perform a pendulum operation so that the distance between the relatively movable double screens 4 is separated when the operation code 3 is operated. The interval when the double screen 4 is operated is configured to be larger than the interval when stationary.

  The operation of the operation plate 6 will be described with reference to FIG. First, referring to FIG. 4A, the operation plate 6 is supported so as to be rotatable relative to the operation pulley 10 and the take-up pipe 9. When the weight bar 5 is stationary, the operation plate 6 has a screen. It is stabilized by its own weight of 4 mag. Next, referring to FIG. 4B, when the operation cord 3 is operated so as to raise the weight bar 5 from the stationary state, the screen 4 is wound around the winding pipe 9. At this time, the operation plate 6 performs a pendulum operation, and the interval d2 when operating the double screen 4 is configured to be larger than the interval d1 when stationary. Similarly, referring to FIG. 4C, when the operation cord 3 is operated so as to lower the weight bar 5 from the stationary state, the operation plate 6 is moved when the screen 4 wound on the winding pipe 9 is lowered. Are operated so that the interval d3 when the double screen 4 is operated is larger than the interval d1 when stationary. Accordingly, since the double screen 4 moves relative to avoid high friction during the ascending or descending operation, there is no possibility of damaging the screen 4.

  Furthermore, in the shielding device (roll screen 1) of the first embodiment, a dimming switching mechanism is provided that can be adjusted so that different amounts of light are obtained at the upper and lower portions of the screen 4. Hereinafter, the dimming switching mechanism in the roll screen 1 of the first embodiment will be described with reference to FIGS.

(Dimming switching mechanism)
The dimming switching mechanism in the shielding device (roll screen 1) of the first embodiment is mainly composed of three switching cords 31a, 31b, 31c and a switching operation grip 30, as shown in FIGS. Is done.

  The three switching cords 31a, 31b, 31c have a string-like form, and are suspended between the double screens 4 from the respective suspension window portions 2e on the left end side, the center, and the right end side of the mounting frame 2. One end is attached to a fixing portion 33 at a substantially intermediate height of the screen 4. At the intermediate height position of the fixing portion 33, the screen 4 is divided into an upper portion 4B and a lower portion 4A.

  The other ends of the three switching cords 31a, 31b, and 31c are guided to the right end side of the mounting frame 2 by the pulleys 2f within the mounting frame 2, and are led out from the window 2c on the right end side of the mounting frame 2 to the lead piece 2d. After that, it is led out to the outside (inside the room) of the mounting frame 2 and hung downward.

  Then, the other ends of the three switching cords 31a, 31b, 31c suspended through the lead-out piece 2d are connected to the switching operation grip 30 and attached.

  In this example, the description will be made with three switching codes 31a, 31b, and 31c. However, if there are a plurality of switching codes, two or four or more switching codes may be used.

  By pulling the switching operation grip 30, the three switching cords 31a, 31b, 31c can be moved, and adjustment can be made so that different amounts of light are obtained in the upper portion 4B and the lower portion 4A of the screen 4. In addition, when the switching operation grip 30 is released, the movement of the three switching cords 31a, 31b, 31c is locked in the mounting frame 2 so that the adjusted state does not change due to the weight of the screen 4 or the like. A possible stopper device 32 is provided (see FIG. 3).

  Hereinafter, the operation of the dimming switching mechanism in the shielding device (roll screen 1) of the first embodiment will be described in detail with reference to FIG. First, FIG. 5A shows a state in which the entire screen 4 is in a light-shielded state, that is, the upper part 4B and the lower part 4A of the screen 4 are both in a light-shielded state. The transmission part 4b and the light-shielding part 4a are in an alternating state. For example, when the weight bar 5 is at the lower limit position, positions at which the end portions of the screen 4 are attached by the take-up pipe 9 or the support shaft 7 so as to be in the “all light shielding state” as shown in FIG. Can be adjusted and set. In the state shown in FIG. 5 (a), the three switching cords 31a, 31b, 31c are suspended from the hanging window portion 2e of the mounting frame 2 and are attached to the fixing portions 33 of the screen 4 outside the room. However, the switching operation grip 30 to which the other ends of the three switching cords 31a, 31b, 31c are attached is in a state where the switching operation by pulling is not performed.

  From the entire light shielding state shown in FIG. 5 (a), the adjacent transmission part 4b and the light shielding part 4a are set to one pitch, the operation cord 3 is operated, and the height of the transmission part 4b, that is, about a half pitch by the winding pipe 9. By winding only, the positions of the transmissive portions 4b and the light-shielding portions 4a of the front and rear screens 4 can be made substantially the same. At this time, the positions of the transmissive portions 4b of the front and rear screens 4 coincide with each other. The entire heavy screen 4 can be in a daylighting state.

  When the switching operation grip 30 is pulled by a predetermined amount (for example, the height of the transmission part 4b, that is, about a half pitch) from the state where the entire double screen 4 is in the daylighting state, the three switching cords 31a and 31b are provided. , 31c move and the position of the fixing portion 33 is pulled up. That is, the suspended state of the upper part 4B of the screen 4 is not changed, but the suspended position of the lower part 4A of the screen 4 on the back side is raised. And about the lower part 4A of the screen 4, when each switching part 4b and the light-shielding part 4a of the double screen 4 are in an alternating state, when the switching operation grip 30 is released, the locking operation by the stopper device 32 works. That state is maintained. FIG. 5 (b) shows the state at this time, the dough slackening occurs in the outdoor screen 4 in the vicinity of the fixed portion 33 (A in the figure), and the amount of light collected differs between the upper part 4B and the lower part 4A of the screen 4 respectively. That is, the upper portion 4B of the screen 4 can be set to the daylighting state, and the lower portion 4A of the screen 4 can be set to the light shielding state.

  Further, when the switching operation grip 30 is pulled by a predetermined amount (for example, a half pitch) from the total light shielding state shown in FIG. 5A, the three switching cords 31a, 31b, and 31c move, and the position of the fixing portion 33 is reached. Is raised. That is, the suspended state of the upper part 4B of the screen 4 is not changed, but the suspended position of the lower part 4A of the screen 4 is raised. Then, when the switching operation grip 30 is released when the transmission part 4b and the light shielding part 4a of the front and rear screens 4 are in agreement with each other on the lower part 4A of the screen 4, the locking operation by the stopper device 32 works. That state is maintained. FIG. 5C shows the state at this time, and the outdoor screen 4 is loosened in the vicinity of the fixing portion 33 (B in the figure), and the amount of light collected differs between the upper portion 4B and the lower portion 4A of the screen 4 respectively. That is, the upper part 4B of the screen 4 can be in a light-shielding state, and the lower part 4A of the screen 4 can be in a daylighting state.

  Note that the widths in the height direction of the transmission part 4b and the light-shielding part 4a can be different from each other. In addition to the case where the upper portion 4B of the screen 4 is in the daylighting state and the lower portion 4A of the screen 4 is in the light-shielding state as described above, or vice versa, the winding pipe by the operation using the operation cord 3 is used. 9 and the amount of movement of the switching cords 31a, 31b, and 31c by the operation using the switching operation grip 30, and different lighting in various lighting and shading states in the upper 4B and lower 4A of the screen 4 The amount can be adjusted.

  The three switching cords 31a, 31b, 31c are suspended from the hanging window portion 2e of the mounting frame 2 and are attached to the fixing portions 33 of the screen 4 outside the room. Even when the screen 4 is taken up by the take-up pipe 9 in order to move 5 to the upper limit, there is no adverse effect. That is, the take-up pipe 9 can take up the three switching cords 31a, 31b, 31c together with the take-up of the screen 4, and even when the screen 4 is rewound by the take-up pipe 9, 3 The switching codes 31a, 31b, 31c of the book return to the suspended state of the fixed portion 33 of the outdoor screen 4.

  As described above, according to the roll screen 1 of the first embodiment, the upper and lower portions 4B and 4A of the screen 4 can be adjusted to have different amounts of light. In addition, it is possible to easily adjust the positions of the upper and lower portions of the screen that have different light amounts.

[Second Embodiment]
(Configuration of shielding device)
Next, with reference to FIG.6 and FIG.7, the structure of the shielding apparatus (roll screen 1) of 2nd Embodiment by this invention is demonstrated. FIG. 6 is a front view showing a schematic configuration of the shielding device (roll screen 1) of the second embodiment according to the present invention, and FIGS. 7 (a), (b), and (c) are the second embodiment according to the present invention. It is operation | movement explanatory drawing of the light control switching mechanism in the shielding apparatus (roll screen 1) of a form. In addition, the same reference number is attached | subjected to the component similar to 1st Embodiment.

  The shielding device (roll screen 1) of the second embodiment shown in FIG. 7 can be configured in substantially the same manner as the first embodiment except that the configuration and operation of the dimming switching mechanism are different. For this reason, the configuration and operation of the dimming switching mechanism in the shielding device (roll screen 1) of the second embodiment that can be adjusted so that the amount of light collected at the upper part 4B and the lower part 4A of the screen 4 are different will be mainly described. .

(Dimming switching mechanism)
As shown in FIGS. 6 and 7, the dimming switching mechanism in the shielding device (roll screen 1) of the second embodiment mainly includes three positioning tapes 51a, 51b, 51c and an endless switching operation code. 56 and a switching pulley 55 that allows the support shaft 7 to be rotated.

  Each of the three positioning tapes 51a, 51b, 51c is configured in a thin and wide tape shape, and one end is attached to each of the left end side, center and right end side mounting portions 54 on the outdoor side surface of the mounting frame 2. Then, the other end is attached to the fixing portion 53 at a substantially intermediate height of the screen 4 by being suspended between the double screens 4. At the intermediate height position of the fixing portion 53, the screen 4 is divided into an upper portion 4B and a lower portion 4A.

  In this example, the positioning tapes 51a, 51b, and 51c will be described. However, two or more positioning tapes may be used as long as they are a plurality of positioning tapes.

  The support shaft 7 is configured in a substantially cylindrical shape, and is supported rotatably with respect to the operation plate 6 and the support plate 8. Further, a switching pulley 55 is provided on the right end surface side of the operation plate 6 so as to be connected to the support shaft 7 so that the support shaft 7 can be rotated. The switching pulley 55 is provided with an endless switching operation code 56, and the support shaft 7 can be rotated by the operation of the switching operation code 56. The surface of the switching pulley 55 on which the switching operation cord 56 is mounted has a highly frictional surface shape. The switching operation cord 56 may be constituted by a ball chain, and the surface of the switching pulley 55 on which the ball chain is hooked may be configured to have irregularities having a shape suitable for the ball portion of the ball chain. .

  The support shaft 7 is configured such that the adjacent transmission portion 4b and the light shielding portion 4a in the outdoor screen 4 can be one pitch, and an extra winding can be made from about half a pitch to one pitch. Preferably, when the weight bar 5 is at the lower limit position, the support shaft 7 is configured to suspend and support the end portion of the outdoor screen 4 in a state in which approximately one half pitch to one pitch is excessively wound.

  Then, by pulling the switching operation code 56 and rotating the support shaft 7 in the rewinding direction, for example, by rewinding the half pitch from the extra winding, the upper portion 4B of the outdoor screen 4 is located in the vicinity of the fixed portion 53. Can cause fabric slack.

  Therefore, by pulling the switching operation code 56, the support shaft 7 is rotated in the rewinding direction, and the light quantity can be adjusted to be different between the upper part 4B and the lower part 4A of the screen 4. In addition, a stopper device (not shown) that can lock the rotation of the support shaft 7 is provided in the support shaft 7 so that the adjusted state of the screen 4 or the like does not change when the switching operation code 56 is released. Is provided.

  Hereinafter, the operation of the dimming switching mechanism in the shielding device (roll screen 1) of the second embodiment will be described in detail with reference to FIG. First, FIG. 7A shows a state in which the entire screen 4 is in a light-shielded state, that is, the upper part 4B and the lower part 4A of the screen 4 are each in the light-shielded state. The transmission part 4b and the light-shielding part 4a are in an alternating state. For example, when the weight bar 5 is at the lower limit position, positions at which the end portions of the screen 4 are attached by the take-up pipe 9 or the support shaft 7 so as to be in the “all light shielding state” as shown in FIG. Can be adjusted and set. In the state shown in FIG. 7 (a), the three positioning tapes 51a, 51b, 51c hang from the mounting portion 54 on the outdoor side surface of the mounting frame 2 and attach one end to the fixing portion 53 of the screen 4 on the outdoor side. I wear it. Further, when the weight bar 5 is at the lower limit position, the support shaft 7 suspends and supports the end of the screen 4 on the outdoor side in an overwinding portion of approximately one to half pitch (C in the drawing) The switching operation code 56 is in a state where the switching operation by the pulling operation is not performed.

  When the switching operation cord 56 is pulled by a predetermined amount (for example, a half pitch) from the total light shielding state shown in FIG. 7A and the support shaft 7 is rotated in the rewinding direction, the support shaft 7 is moved from the extra winding to the place. The fixed amount is rewound and the upper portion 4B of the outdoor screen 4 is pulled downward. That is, the suspended state of the lower portion 4A of the screen 4 is not changed by the suspension support of the three positioning tapes 51a, 51b, 51c, but the suspended position of the upper portion 4B of the screen 4 is lowered. When the switching operation code 56 is released when the transmission part 4b and the light-shielding part 4a of the front and rear screens 4 are in agreement with each other on the upper part 4B of the screen 4, a locking operation is performed by a stopper device (not shown). That state is maintained. FIG. 7B shows a state at this time. The outdoor screen 4 is loosened in the vicinity of the fixing portion 53 (D in the figure), and the amount of light collected is different between the upper portion 4B and the lower portion 4A of the screen 4. That is, the upper portion 4B of the screen 4 can be set to the daylighting state, and the lower portion 4A of the screen 4 can be set to the light shielding state.

  Further, from the entire light shielding state shown in FIG. 7 (a), the adjacent transmission part 4b and the light shielding part 4a are set to one pitch, the operation cord 3 is operated, and the winding pipe 9 is wound up by a half pitch. The positions of the transmissive portions 4b and the light-shielding portions 4a of the screen 4 can be made substantially the same. At this time, the positions of the transmissive portions 4b of the front and rear screens 4 coincide with each other, so that the entire double screen 4 is illuminated. State.

  When the switching operation cord 56 is pulled by a predetermined amount (for example, a half pitch) from the state in which the entire double screen 4 is in the daylighting state, and the support shaft 7 is rotated in the rewinding direction, the support shaft 7 is unwinding. The upper part 4B of the outdoor screen 4 is pulled downward by unwinding a half pitch. That is, the suspended state of the lower portion 4A of the screen 4 is not changed by the suspension support of the three positioning tapes 51a, 51b, 51c, but the suspended position of the upper portion 4B of the screen 4 is lowered. When the switching operation code 56 is released for the upper part 4B of the screen 4 when the transmissive parts 4b and the light-shielding parts 4a of the double screens 4 are in an alternating state, a locking operation by a stopper device (not shown) is activated. That state is maintained. FIG. 7C shows the state at this time. The outdoor screen 4 is loosened in the vicinity of the fixing portion 53 (E in the figure), and the amount of light collected differs between the upper portion 4B and the lower portion 4A of the screen 4. That is, the upper part 4B of the screen 4 can be in a light-shielding state, and the lower part 4A of the screen 4 can be in a daylighting state.

  Note that the widths in the height direction of the transmission part 4b and the light-shielding part 4a can be different from each other. In addition to the case where the upper portion 4B of the screen 4 is in the daylighting state and the lower portion 4A of the screen 4 is in the light-shielding state as described above, or vice versa, the winding pipe by the operation using the operation cord 3 is used. 9 and a combination of the unwinding amount of the extra winding of the support shaft 7 by the operation using the switching operation code 56, the lighting is different in various lighting and shading states in the upper part 4B and the lower part 4A of the screen 4. The amount can be adjusted.

  The three positioning tapes 51a, 51b, 51c are suspended from the mounting portion 54 on the outdoor side surface of the mounting frame 2 and are attached to the fixing portions 53 of the screen 4 on the outdoor side. When the screen 4 is taken up by the take-up pipe 9 in order to move the weight bar 5 to the upper limit, there is no adverse effect. That is, the take-up pipe 9 can take up the three positioning tapes 51a, 51b, 51c together with the take-up of the screen 4, and even when the screen 4 is rewound by the take-up pipe 9, 3 The positioning tapes 51a, 51b, 51c of the book return to the suspended state of the fixing portion 53 of the outdoor screen 4.

  As described above, according to the shielding device (roll screen 1) of the second embodiment, the light quantity can be adjusted to be different between the upper part 4B and the lower part 4A of the screen 4. In addition, it is possible to easily adjust the positions of the upper and lower portions of the screen that have different light amounts.

  Further, in the case of the shielding device (roll screen 1) of the first embodiment, adjustment is made so that different amounts of light are obtained in the upper portion 4B and the lower portion 4A of the screen 4 by raising the lower portion 4A of the screen 4. For this reason, the position of the weight bar 5 also rises accordingly, and when the light shielding property when the lower portion 4A of the screen 4 is in a light shielding state becomes a problem, the shielding device (roll screen of the second embodiment). It is preferable to configure as in 1). According to the shielding device (roll screen 1) of the second embodiment, the weight bar 5 is positioned so that the upper 4B and the lower 4A of the screen 4 are adjusted to have different amounts of light when the upper 4B of the screen 4 is lowered. The light shielding property when the lower portion 4A of the screen 4 is in a light shielding state can be improved.

[Third Embodiment]
(Configuration of shielding device)
Next, with reference to FIG. 8 thru | or FIG. 10, the structure of the shielding apparatus (roll screen 1) of 3rd Embodiment by this invention is demonstrated. FIG. 8 is a front view showing a schematic configuration of the shielding device (roll screen 1) of the third embodiment according to the present invention, and FIG. 9 is an operation in the shielding device (roll screen 1) of the third embodiment according to the present invention. It is a disassembled perspective view which shows schematic structure of plate 6 periphery. FIGS. 10A, 10B, and 10C are operation explanatory views of the dimming switching mechanism in the shielding device (roll screen 1) according to the third embodiment of the present invention. In addition, the same reference number is attached | subjected to the component similar to 1st and 2nd embodiment.

  The shielding device (roll screen 1) of the third embodiment shown in FIG. 8 can be configured in substantially the same manner as the first and second embodiments except that the configuration and operation of the dimming switching mechanism are different. For this reason, the configuration and operation of the dimming switching mechanism in the shielding device (roll screen 1) of the third embodiment that can be adjusted so that the amount of light collected at the upper part 4B and the lower part 4A of the screen 4 are different from each other will be mainly described. .

(Dimming switching mechanism)
The dimming switching mechanism in the shielding device (roll screen 1) of the third embodiment mainly includes three switching cords 31a, 31b, 31c, a switching operation grip 30, as shown in FIGS. It comprises three positioning tapes 51a, 51b, 51c and a guide frame body 34 that guides the support shaft 7 so as to be movable in the vertical direction.

  Each of the three positioning tapes 51a, 51b, 51c is configured in a thin and wide tape shape, and one end is attached to each of the left end side, center and right end side mounting portions 54 on the outdoor side surface of the mounting frame 2. Then, the other end is attached to the fixing portion 53 at a substantially intermediate height of the screen 4 by being suspended between the double screens 4. At the intermediate height position of the fixing portion 53, the screen 4 is divided into an upper portion 4B and a lower portion 4A.

  The three switching cords 31a, 31b, 31c are suspended between the double screens 4 from the respective drooping window portions 2e on the left end side, the center and the right end side of the mounting frame 2, respectively. One end is mounted on the support shaft 7 accommodated in the housing.

  The other ends of the three switching cords 31a, 31b, and 31c are guided to the right end side of the mounting frame 2 by the pulleys 2f within the mounting frame 2, and are led out from the window 2c on the right end side of the mounting frame 2 to the lead piece 2d. After that, it is led out to the outside (inside the room) of the mounting frame 2 and hung downward.

  Then, the other ends of the three switching cords 31a, 31b, 31c suspended through the lead-out piece 2d are connected to the switching operation grip 30 and attached.

  In this example, three switching cords 31a, 31b, and 31c and three positioning tapes 51a, 51b, and 51c are described. However, two or more switching cords and positioning tapes may be used. Four or more.

  The support shaft 7 is configured in a substantially rectangular parallelepiped shape that allows one end of the screen 4 to be attached, and is accommodated in a guide frame body 34 that guides the support shaft 7 so as to be movable in the vertical direction. The operation plate 6 and the support plate 8 are supported so as not to rotate. The guide frame 34 has a substantially U-shaped cross-sectional shape having an opening at the top. Each shape of the support shaft 7 and the guide frame body 34 may be other forms as long as the support shaft 7 is guided by the guide frame body 34 so as to be movable in the vertical direction. 34 accommodates the support shaft 7 so as to be movable in the vertical direction, and then restricts the movement so that the support shaft 7 does not jump out of the guide frame 34 or restricts the movement. A member may be provided.

  In the present embodiment, by pulling the switching operation grip 30, the three switching cords 31a, 31b, 31c are moved, and thereby the support shaft 7 is moved in the vertical direction within the guide frame body 34, whereby the screen 4 The upper 4B and the lower 4A can be adjusted to have different light amounts. In addition, when the switching operation grip 30 is released, the movement of the three switching cords 31a, 31b, 31c is locked in the mounting frame 2 so that the adjusted state does not change due to the weight of the screen 4 or the like. A possible stopper device 32 is provided (see FIG. 9).

  As shown in FIG. 9, as a configuration around the operation plate 6, a winding pipe 9 is attached to one side of the screen 4 (that is, the front screen 4 </ b> F) so as to be suspendably supported. The other side of the screen 4 (that is, the rear screen 4 </ b> R) suspended from the weight 9 and functioning as a weight member is accommodated in the guide frame 34 through the outer wall of the guide frame 34. It is attached to an attachment portion 7a on the support shaft 7 to be mounted.

  The support shaft 7 is configured as a second weight member different from the weight bar 5, and is accommodated in the guide frame body 34 when the dimming switching operation is not performed (that is, the switching cord 31a, When there is no pulling operation of 31b and 31c), it is located on the bottom surface in the guide frame 34. For this reason, the support shaft 7 for attaching the other side of the screen 4 (that is, the rear screen 4R) passes through the outer wall of the guide frame body 34 with the extra length L, and passes through the screen 4 (that is, the rear screen 4R). ). The extra length L is configured to correspond to approximately one half pitch to one pitch, with the adjacent transmission portion 4b and light shielding portion 4a in the outdoor screen 4 as one pitch. Preferably, when the weight bar 5 is at the lower limit position, the support shaft 7 is configured to suspend and support the end portion of the outdoor screen 4 in a state where the extra length L is from one half pitch to one pitch. .

  A roller 15 that is rotatably supported by both end portions of the weight bar 5 is inserted into the lower end portion of the screen 4 that is suspended between the winding pipe 9 and the support shaft 7. Accordingly, the screen 4 is stretched based on the weight of the weight bar 5.

  Thus, in order to support the double screen 4 in a suspended state, it is preferable that the weight of the support shaft 7 is equal to or more than the weight of the weight bar 5.

  In the example shown in FIG. 9, two hole portions 22 capable of supporting the guide frame body 34 are provided below the operation plate 6, and the two holding receiving portions 34 a provided in the guide frame body 34 are The guide frame 34 is supported between the support members 2a and 2b in a non-rotatable manner by two holding members 21 such as rivets. Any other means may be used as long as it can support the guide frame body 34 between the support members 2a and 2b in a non-rotatable manner.

  By operating the switching operation grip 30, the support shaft 7 can be moved upward in the guide frame body 34 by the movement of the three switching cords 31a, 31b, 31c, or the support shaft 7 can be moved to the guide frame. It can be moved downward within the body 34 (F in the figure).

  Hereinafter, the operation of the dimming switching mechanism in the shielding device (roll screen 1) of the third embodiment will be described in detail with reference to FIG. First, FIG. 10A shows a state in which the entire screen 4 is in a light-shielded state, that is, the upper part 4B and the lower part 4A of the screen 4 are both in a light-shielded state. The transmission part 4b and the light-shielding part 4a are in an alternating state. For example, when the weight bar 5 is at the lower limit position, positions at which the end portions of the screen 4 are attached by the take-up pipe 9 or the support shaft 7 so as to be in the “all light shielding state” as shown in FIG. Can be adjusted and set. In the state shown in FIG. 10A, the three positioning tapes 51a, 51b, 51c are suspended from the mounting portion 54 on the outdoor side surface of the mounting frame 2 and each end is attached to the fixing portion 53 of the screen 4 on the outdoor side. I wear it. Further, when the weight bar 5 is at the lower limit position, the support shaft 7 suspends and supports the end of the outdoor screen 4 so as to be movable in the vertical direction with the extra length L from one half pitch to one pitch. (F in the figure). In the state shown in FIG. 10A, the three switching cords 31 a, 31 b, and 31 c are suspended from the hanging window portion 2 e of the mounting frame 2 and are attached to the support shaft 7. The switching operation grip 30 to which the other ends of the switching cords 31a, 31b, and 31c are attached is in a state where the switching operation by pulling is not performed.

  When the switching operation grip 30 is pulled by a predetermined amount (for example, a half pitch) from the total light shielding state shown in FIG. 10A, the three switching cords 31a, 31b, 31c move (G in the drawing), The support shaft 7 hangs a predetermined amount from the extra length L, and the upper part 4B of the outdoor screen 4 is pulled downward. That is, the suspended state of the lower portion 4A of the screen 4 is not changed by the suspension support of the three positioning tapes 51a, 51b, 51c, but the suspended position of the upper portion 4B of the screen 4 is lowered. Then, when the switching operation grip 30 is released when the transmission portion 4b and the light shielding portion 4a of the double screen 4 are in agreement with each other on the upper portion 4B of the screen 4, the locking operation by the stopper device 32 is activated. That state is maintained. FIG. 10B shows the state at this time, the dough loosening occurs in the outdoor screen 4 in the vicinity of the fixed portion 53 (H in the drawing), and the amount of light collected is different between the upper portion 4B and the lower portion 4A of the screen 4. That is, the upper portion 4B of the screen 4 can be set to the daylighting state, and the lower portion 4A of the screen 4 can be set to the light shielding state.

  Further, from the entire light shielding state shown in FIG. 10 (a), the adjacent transmission portion 4b and the light shielding portion 4a are set to one pitch, the operation cord 3 is operated, and the winding pipe 9 winds up by a half pitch. The positions of the transmissive portions 4b and the light-shielding portions 4a of the screen 4 can be made substantially the same. At this time, the positions of the transmissive portions 4b of the front and rear screens 4 coincide with each other, so that the entire double screen 4 is illuminated. State.

  When the switching operation grip 30 is pulled by a predetermined amount (for example, a half pitch) from the state where the entire double screen 4 is in the daylighting state, the three switching cords 31a, 31b, 31c move (I in the figure). The support shaft 7 hangs by a predetermined amount from the extra length, and the upper portion 4B of the outdoor screen 4 is lowered downward. That is, the suspended state of the lower portion 4A of the screen 4 is not changed by the suspension support of the three positioning tapes 51a, 51b, 51c, but the suspended position of the upper portion 4B of the screen 4 is lowered. And about the upper part 4B of the screen 4, if each transmission part 4b and the light-shielding part 4a of the double screen 4 will be in an alternating state, if the switching operation grip 30 is let go, the locking operation by the stopper device 32 will work. That state is maintained. FIG. 10 (c) shows the state at this time, and the screen 4 on the outdoor side is loosened in the vicinity of the fixing portion 53 (shown J), and the amount of light collected is different between the upper part 4B and the lower part 4A of the screen 4. That is, the upper part 4B of the screen 4 can be in a light-shielding state, and the lower part 4A of the screen 4 can be in a daylighting state.

  Note that the widths in the height direction of the transmission part 4b and the light-shielding part 4a can be different from each other. In addition to the case where the upper portion 4B of the screen 4 is in the daylighting state and the lower portion 4A of the screen 4 is in the light-shielding state as described above, or vice versa, the winding pipe by the operation using the operation cord 3 is used. The amount of light collected varies depending on whether the upper 4B and lower 4A of the screen 4 are dimmed or shaded by combining the amount of winding 9 and the amount of extra length of the support shaft 7 with the operation using the switching operation grip 30. Can be adjusted.

  The three positioning tapes 51a, 51b, 51c are suspended from the mounting portion 54 on the outdoor side surface of the mounting frame 2 and are attached to the fixing portions 53 of the screen 4 on the outdoor side. When the screen 4 is taken up by the take-up pipe 9 in order to move the weight bar 5 to the upper limit, there is no adverse effect. That is, the take-up pipe 9 can take up the three positioning tapes 51a, 51b, 51c together with the take-up of the screen 4, and even when the screen 4 is rewound by the take-up pipe 9, 3 The positioning tapes 51a, 51b, 51c of the book return to the suspended state of the fixing portion 53 of the outdoor screen 4.

  As described above, according to the shielding device (roll screen 1) of the third embodiment, the light quantity can be adjusted to be different between the upper part 4B and the lower part 4A of the screen 4. In addition, it is possible to easily adjust the positions of the upper and lower portions of the screen that have different light amounts.

  Further, in the case of the shielding device (roll screen 1) of the first embodiment, adjustment is made so that different amounts of light are obtained in the upper portion 4B and the lower portion 4A of the screen 4 by raising the lower portion 4A of the screen 4. For this reason, the position of the weight bar 5 also rises accordingly, and when the light shielding property when the lower part 4A of the screen 4 is in a light shielding state becomes a problem, the shielding device (roll screen of the third embodiment). It is preferable to configure as in 1). According to the roll screen 1 of the third embodiment, the position of the weight bar 5 is not changed because the upper 4B and the lower 4A of the screen 4 are adjusted so as to obtain different amounts of light when the upper 4B of the screen 4 is lowered. Therefore, the light shielding property when the lower portion 4A of the screen 4 is in a light shielding state can be improved.

[Fourth Embodiment]
(Configuration of shielding device)
Next, with reference to FIG.11 and FIG.12, the structure of the shielding apparatus (dimming screen 100) of 4th Embodiment by this invention is demonstrated. FIGS. 11A and 11B are a front view and a side view, respectively, showing an outline of a shielding device (a dimming screen 100) according to a fourth embodiment of the present invention. FIGS. 12A and 12B are a front view and a side view, respectively, for explaining the operation of the shielding device (the dimming screen 100) according to the fourth embodiment of the present invention. In addition, the same reference number is attached | subjected to the component similar to other embodiment.

  Unlike the roll screen 1 described above, the shielding device (the dimming screen 100) of the fourth embodiment shown in FIG. 11 is not provided with a winding mechanism for raising and lowering the screen 4, and is simply provided from the mounting frames 2 to 2. The screens 4 are suspended and supported in a state where the screens 4 are overlapped. Each of the two screens 4 has a transmission portion 4b that partially transmits light and a light shielding portion 4a that blocks light alternately formed in a striped pattern, for example.

  More specifically, the double screen 4 will be described. The upper end of the outdoor screen 4 of the double screen 4 is attached so as to be able to be wound around the support pipe 60, and the fabric presser 64 a is locked to the mounting portion 64 provided on the outdoor side surface of the mounting frame 2. The lower end of the outdoor screen 4 is suspended by its own weight or weight.

  The upper end of the indoor screen 4 of the double screen 4 is attached to a support pipe 60 in the mounting frame 2, and the lower end of the indoor screen 4 is suspended by its own weight or weight. ing. The support pipe 60 is supported by fixed shafts extending from support members 2 a and 2 b provided at both ends of the mounting frame 2. In particular, the support pipe 60 is configured such that the adjacent transmission part 4b and the light-shielding part 4a in the indoor screen 4 can be one pitch, and at least approximately half pitch to one pitch can be overwound. Or it is supported between the support members 2a and 2b so that it can rotate with the amount of rotation which can be rewound.

  Thus, in the shielding device (the dimming screen 100) of the fourth embodiment, the double screen 4 is suspended and supported from the mounting frame 2, but as in the first embodiment. A single screen 4 may be folded back via the weight bar 5 as described above, and both ends thereof may be suspended and supported from the mounting frame 2 in the same manner.

  At the right end portion of the support pipe 60, a switching pulley 55 that allows the support pipe 60 to be rotated is provided, and is accommodated in the support member 2a in this example. A switching operation cord 56 is hooked on the switching pulley 55, and a switching operation grip 30 is attached to each end of the switching operation cord 56 and is suspended. Such a switching operation cord 56 may be constituted by an endless cord without using the switching operation grip 30, or may be constituted by an endless ball chain, and the switching pulley on which the ball chain is mounted. The surface of 55 can also be configured to have irregularities shaped to fit the ball portion of the ball chain.

  In the shielding device (the dimming screen 100) of the fourth embodiment, there is also provided a dimming switching mechanism that can be adjusted so that different amounts of light are obtained at the upper and lower portions of the screen 4. Hereinafter, the dimming switching mechanism will be described.

(Dimming switching mechanism)
As shown in FIG. 11, the dimming switching mechanism in the shielding device (the dimming screen 100) of the fourth embodiment mainly hangs two positioning tapes 51 a and 51 b and a switching operation code 56. It comprises a switching pulley 55 that allows the support pipe 60 to be rotated by a predetermined amount of rotation.

  The two positioning tapes 51a and 51b are each configured in a thin and wide tape form. The upper ends of the positioning tapes 51a and 51b are attached to a fixing member 54a whose length can be adjusted by winding or the like, and the fixing member 54a is attached to each of the left end side and the right end side on the outdoor side surface of the mounting frame 2. It is attached to the mounting frame 2 by being locked to the portion 54. In addition, the lower ends of the positioning tapes 51a and 51b are suspended between the double screens 4 and attached to a fixing portion 53 at a substantially intermediate height of the screen 4 on the indoor side. Note that the fixing portion 53 may be provided on the outdoor screen 4. At the intermediate height position of the fixing portion 53, the screen 4 is divided into an upper portion 4B and a lower portion 4A.

  In this example, the positioning tapes 51a and 51b are described, but a plurality of positioning tapes may be used.

  The support pipe 60 is supported between the support members 2a and 2b so as to be rotatable with a rotation amount capable of winding or unwinding the extra winding amount of the screen 4, and cannot be rotated relative to the support pipe 60. A switching pulley 55 is provided. Therefore, the support pipe 60 can be rotated by a predetermined rotation amount via the switching operation code 56. For example, the support pipe 60 can be rotated by a predetermined amount of rotation. For example, a protrusion is provided on each of the axial surface of the switching pulley 55 and the surface of the support member 2a facing this surface. The amount of rotation of the switching pulley 55 can be regulated depending on whether or not the abutment contacts, and the amount of rotation of the support pipe 60 can be regulated accordingly.

  Then, by pulling the switching operation cord 56 and rotating the support pipe 60 in the rewinding direction, for example, by rewinding the half pitch from the extra winding, the upper portion 4B of the outdoor screen 4 is positioned in the vicinity of the fixing portion 53. Can cause fabric slack.

  Therefore, by pulling the switching operation code 56, the support pipe 60 is rotated in the rewinding direction, and the light quantity can be adjusted to be different between the upper part 4B and the lower part 4A of the screen 4. Note that a stopper device (not shown) that can lock the rotation of the support pipe 60 is provided in the support pipe 60 so that the adjusted state of the screen 4 or the like does not change when the switching operation code 56 is released. Or a sliding resistance is provided.

  Hereinafter, the operation of the dimming switching mechanism in the shielding device (the dimming screen 100) of the fourth embodiment will be described in detail with reference to FIGS. First, FIGS. 11A and 11B show a state in which the entire screen 4 is in a light-shielded state, that is, the upper screen 4B and the lower portion 4A of the screen 4 are both in a light-shielded state. Each of the four transmissive portions 4b and the light shielding portions 4a are in a staggered state. For example, when the lower end of the double screen 4 is at the lower limit position, the position where each upper end of the screen 4 is attached by the support pipe 60 and the mounting portion 64 so as to be in the “all light shielding state” as shown in FIG. It can be adjusted and set. In the state shown in FIG. 11, the two positioning tapes 51 a and 51 b are suspended from the attachment portion 54 on the outdoor side surface of the attachment frame 2 and are attached to the fixing portion 53 of the screen 4 on the indoor side. Yes. The support pipe 60 suspends and supports the end portion of the screen 4 on the indoor side in a state in which approximately one half to one pitch is wound, and the switching operation code 56 performs a switching operation by the pulling operation. It is in an undisclosed state.

  When the switching operation cord 56 is pulled by a predetermined amount (for example, a half pitch) from the entire light shielding state shown in FIG. 11 and the support pipe 60 is rotated in the rewinding direction, the support pipe 60 removes the predetermined amount from the extra winding. The upper part 4B of the screen 4 on the indoor side is pulled down downward. That is, the suspended state of the lower part 4A of the screen 4 is not changed by the suspended support of the two positioning tapes 51a and 51b, but the suspended position of the upper part 4B of the indoor screen 4 is lowered. When the switching operation code 56 is released when the transmission part 4b and the light-shielding part 4a of the front and rear screens 4 are in agreement with each other on the upper part 4B of the screen 4, a locking operation is performed by a stopper device (not shown). That state is maintained. 12 (a) and 12 (b) show the state at this time. The fabric on the indoor screen 4 is loosened in the vicinity of the fixed portion 53, and the amount of light collected is different between the upper part 4B and the lower part 4A of the screen 4. That is, the upper portion 4B of the screen 4 can be set to the daylighting state, and the lower portion 4A of the screen 4 can be set to the light shielding state.

  Also, from the state shown in FIGS. 12A and 12B, the adjacent transmission part 4b and the light-shielding part 4a are set to one pitch, the operation cord 3 is operated, and the support pipe 60 is wound up by a half pitch. The positions of the transmissive portions 4b and the light shielding portions 4a of the screen 4 can be alternated, and the entire double screen 4 can be in a total light shielding state (that is, the state shown in FIG. 11).

  Note that the widths in the height direction of the transmission part 4b and the light-shielding part 4a can be different from each other. As described above, in addition to the case where the upper portion 4B of the screen 4 is in the daylighting state and the lower portion 4A of the screen 4 is in the light shielding state, or vice versa, the support pipe 60 by the operation using the operation cord 3 is used. The amount of winding can be adjusted so that different amounts of light can be obtained in various lighting and shading states at the upper part 4B and the lower part 4A of the screen 4.

  As described above, according to the shielding device (the dimming screen 100) of the fourth embodiment, it is possible to adjust the upper and lower portions 4B and 4A of the screen 4 so as to obtain different amounts of light. In addition, the positions of the upper and lower portions of the double screen 4 having different light amounts can be easily adjusted.

  Furthermore, it can be set as the shielding apparatus of further embodiment which combined the shielding apparatus of 1st thru | or 4th embodiment. For example, in the shielding device (the dimming screen 100) of the fourth embodiment, a configuration in which the switching operation can be performed by a plurality of switching codes as in the shielding device (roll screen 1) of the first embodiment, or the fourth embodiment In the shielding device (the dimming screen 100), it is also possible to operate the cloth length as in the shielding device (roll screen 1) of the third embodiment. Alternatively, in the shielding device (roll screen 1) of the second embodiment, the shielding device (rolling screen 100) of the fourth embodiment is composed of a double screen 4 consisting of two screens 4, Each of the two screens 4 can be configured to be overwound or windable.

  In summary, the shielding device according to the present invention (in the above example, the roll screen 1 or the dimming screen 100) can move the first screen up and down by a predetermined amount of the suspended double screen 4. First dough attachment means for attaching the upper end of the first screen (in the above example, the winding pipe 9 or the support pipe 60) and the upper end of the second screen of the double screen 4 are attached. Second fabric attachment means (in the above example, the fabric presser 64a attached to the support shaft 7 or the attachment portion 64 of the attachment frame 2), and the first and second fabric attachment means. Mounting support means for supporting the means (in the above example, the mounting frame 2) and a predetermined position on one of the first screen and the second screen as a fixing portion 33 (or fixing portion 53). Suspension from means Suspension support means (in the above example, switching cords 31a, 31b, 31c or switching tapes 51a, 51b, 51c) and the double screen located above and below the fixing portion 33 (or fixing portion 53) 4 is configured to include switching operation means (in the above example, the switching operation grip 30 or the switching operation code 56) that can be adjusted so as to be in different states.

  Accordingly, the upper and lower portions 4B and 4A of the screen 4 can be adjusted so as to obtain different light amounts, and the positions of the upper and lower portions of the screen 4 having different light amounts can be easily adjusted. As in the first to third embodiments, the double screen 4 is folded at the lower end of the first screen via a predetermined weight member (for example, the weight bar 5), and the upper end of the second screen. The first dough attachment means can be constituted by a take-up pipe 9 that can take up the first screen so that the double screen 4 can be moved up and down. Then, by providing operation means (operation code 3 in the above example) that enables the winding by the winding pipe 9, the double screen 4 is moved up and down and the double screen 4 is illuminated. The switching operation that allows the amount to be adjusted to different states can be performed independently.

  Further, as in the first embodiment, when the suspension support means is composed of a plurality of switching cords 31a, 31b, and 31c that suspend and support the fixed portion 33, the attachment support is used as the switching operation means. It can comprise so that the switching operation grip 30 which hangs down and connects from a part of means can be provided. Thereby, the operativity at the time of adjusting so that it may become respectively different light quantity by the upper part 4B and the lower part 4A of the screen 4 can be improved.

  On the other hand, as in the second embodiment, the suspension support means is composed of a plurality of positioning tapes 51a, 51b, 51c having one end attached to the fixing portion 53 and the other end attached to the attachment support means. In this case, the second fabric attaching means (the support shaft 7 in the above example) is configured to allow the screen 4 to be overwound by a predetermined amount. Then, as the switching operation means, an operation mechanism (in the above example, the switching pulley 55) that enables the unwinding screen 4 to be rewound, and the operation mechanism is operated so that the amount of light collected is different. It can comprise so that it may be provided with the switching operation code | cord | chord 56 which operates so that it may become. As a result, it is possible to adjust the amount of light collected to be different between the upper portion 4B and the lower portion 4A of the screen 4 with the position of the weight bar 5 unchanged.

  Alternatively, as in the third embodiment, the suspension support means is composed of a plurality of positioning tapes 51a, 51b, 51c having one end attached to the fixing portion 53 and the other end attached to the attachment support means. In this case, the second fabric attaching means (in the above example, the support shaft 7) uses the guide frame body 34 supported by the attachment support means to suspend the screen 4 in the hanging direction by a predetermined length. It can be configured as a movable mechanism that is suspended and supported so as to be movable. In this case, the switching operation means is connected to a plurality of switching cords 31a, 31b, 31c, which are attached to the movable mechanism and supported by being suspended, and a part of the mounting support means. 30 can be provided. As a result, it is possible to adjust the amount of light collected to be different between the upper portion 4B and the lower portion 4A of the screen 4 with the position of the weight bar 5 unchanged.

  Further, as in the first to third embodiments, such suspension support means (in the above example, the switching cords 31a, 31b, 31c, or the positioning tapes 51a, 51b, 51c) is the first fabric. It is preferable that the screen 4 can be taken up together with the screen 4 when the screen 4 is taken up by the attaching means (the take-up pipe 9 in the above example). Thereby, it can adjust so that it may become respectively different light quantity in the upper part 4B and the lower part 4A of the screen 4, without having a bad influence on winding operation of the screen 4. FIG.

  Alternatively, as in the fourth embodiment, the double screen 4 is individually dropped as the first screen and the second screen, and the amount of light collected by the double screen 4 is used as the first fabric attaching means. By configuring the support pipe 60 that enables the first screen to be wound with the predetermined rotation amount capable of adjusting the amount of light, the upper 4B and the lower 4A of the screen 4 can be adjusted to have different light amounts.

  In each embodiment, the suspension support means (in the above example, the switching cords 31a, 31b, 31c, or the positioning tapes 51a, 51b, 51c) are inserted between the double screens 4 and fixed. It is preferable that the parts 33 and 53 are supported so as to be suspended. As a result, the suspension support means (in the above example, the switching cords 31a, 31b, and 31c or the positioning tapes 51a, 51b, and 51c) cannot be visually recognized from the outside, and the aesthetic appearance can be maintained.

  The present invention has been described above with reference to specific embodiments. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the technical concept thereof. For example, in each embodiment, the indoor side and the indoor side are specified and described, but the indoor side and the indoor side may be installed in opposite directions.

  Further, the outer shape of the support members 2a and 2b, the operation plate 6 and the support plate 8, the shape of the code guide portions 12 and 13, the shape of the winding pipe 9 and the support shaft 7 (or the guide frame 34), etc. Various shapes can be used as long as the action and effect are produced. Further, the switching cords 31a, 31b, and 31c have been described as string-like, but may be tape-like. Similarly, the positioning tapes 51a, 51b, and 51c have been described as tape-shaped, but may be string-shaped.

  Further, in the specific embodiment, the roll screen 1 in the form of pendulum operation using the operation plate 6 and the support plate 8 has been described. However, the winding plate 9 and the support shaft are not used without using the operation plate 6 and the support plate 8. 7 (or the guide frame body 34) is directly supported between the support members 2a and 2b, and the roll screen in a form in which the pendulum operation is not performed is configured such that the double screen 4 can be relatively moved in the vertical direction. If there is, the dimming switching mechanism according to the present invention can be applied.

  According to the shielding device of the present invention, since it can be a roll screen that can be adjusted so that different amounts of light are obtained at the upper and lower portions of the screen, it is useful for the application of a shielding device that uses a double screen. .

DESCRIPTION OF SYMBOLS 1 Roll screen 2 Mounting frame 2a, 2b Support member 3 Operation code 4 Screen 4a Screen light-shielding part 4b Screen transmission part 4A Lower part of screen 4B Upper part of screen 5 Weight bar 6 Operation plate 7 Support shaft 8 Support plate 9 Winding pipe DESCRIPTION OF SYMBOLS 10 Operation pulley 11 Fixed shaft 12, 13 Code guide part 15 Roller 30 Switching operation grip 31a, 31b, 31c Switching code 32 Stopper device 33 Fixing part 34 Guide frame 51a, 51b, 51c Positioning tape 53 Fixing part 54 Mounting part 54a Fixing Member 55 Switching pulley 56 Switching operation code 64 Mounting portion 64a Material presser 60 Support pipe 100 Dimming screen

Claims (8)

The hanging Do the always double screen in the vertical direction to a shielding device that can move relatively,
A first fabric attachment means for attaching an upper end of the first screen so that the first screen of the double screens can be moved up and down by a predetermined amount;
A second fabric attachment means for attaching the upper end of the second screen of the double screen;
Mounting support means for supporting the first fabric attachment means and the second fabric attachment means;
Suspension support means for suspending and supporting from the attachment support means with a predetermined position on either one of the first screen and the second screen as a fixed portion;
A switching operation means for operating the double screens located above and below the fixed portion so that the light intensity of the double screens can be adjusted differently;
A shielding apparatus comprising: The double screen, a single SCREEN folded through a predetermined weight member being adapted to said first screen and said second SCREEN,
The first fabric attaching means is configured to wind up the first screen so that the double screen can be moved up and down,
The shielding apparatus according to claim 1, further comprising operation means that enables operation of winding by the first fabric attachment means. The suspension support means includes a plurality of switching cords for supporting the fixed portion in a suspended manner,
The switching operation means includes a switching operation grip that guides each other end of the plurality of switching cords via the attachment support means, and hangs down from a part of the attachment support means. The shielding apparatus of Claim 1 or 2. The suspension support means includes a plurality of positioning tapes or cords having one end attached to the fixing portion and the other end attached to the attachment support means,
The second fabric attaching means is configured to be capable of extra winding the second screen by a predetermined amount,
The switching operation unit operates the operation mechanism that enables rewinding of the second screen that is extra-rolled by the second fabric attachment unit, and operates the operation mechanism so that the amount of light collected is different. The shielding apparatus according to claim 1, further comprising: a switching operation code that operates in an adjustable manner. The suspension support means includes a plurality of positioning tapes or cords having one end attached to the fixing portion and the other end attached to the attachment support means,
The second fabric attachment means includes a movable mechanism that suspends and supports the second screen so as to be movable in a predetermined length in the hanging direction.
The switching operation means guides the other ends of the plurality of switching cords via the mounting support means, a plurality of switching cords for attaching one end to the movable mechanism in the second fabric attaching means, The shielding apparatus according to claim 1, further comprising: a switching operation grip that is suspended from a part of the attachment support unit.   The said suspension support means is comprised so that winding-up with this 1st screen is possible at the time of winding-up operation of the 1st screen by the said 1st material | dough attachment means. The shielding apparatus as described in any one. The double screens are individually suspended as the first screen and the second screen,
2. The first dough attachment means is configured to be capable of moving the first screen up and down by the predetermined amount capable of adjusting the amount of light collected by the double screen. Shielding device.   The said suspension support means is comprised so that it may penetrate between the said double screens, and the said fixing | fixed part is suspended and supported, It is characterized by the above-mentioned. Shielding device.