JP6701837B2 - Opening device - Google Patents

Description

  The present invention relates to an opening device that can change the light transmittance by energizing, and more specifically, can change the light transmittance by energizing while opening and closing a shoji by sliding left and right or up and down. The present invention relates to an opening device.

  An opening device (a device provided in an opening of a building or a vehicle such as a window or a door) that can change the light transmittance by energizing has attracted attention from the viewpoint of energy saving and space production (for example, Patent Document 1). These opening devices are sometimes called dimming windows, and light is transmitted by a polymer dispersed liquid crystal (PDLC), a suspended particle device (SPD), a guest-host liquid crystal device, an electrochromic device, or the like. It is possible to change the light transmittance by providing a light control layer capable of changing the light transmittance.

JP-A-8-21990

In these opening devices, energization is required to change the light transmittance, and electrical connection with an external power source is required. Therefore, in the conventional opening device, the transparent conductive layer is exposed from the end of the opening device, a metal foil is bonded to the exposed portion with a conductive adhesive, and a copper wire is soldered to the metal foil. Was connected to the power supply.
However, since the opening device (dimming window) is formed by laminating or processing this dimming layer on a glass plate, and then connecting the lead wire connected to the dimming layer to the power source of the building, It was not possible to move the opening device that was machined into the form, to make it fit and kill, and to open and close the shoji.

  Therefore, in view of such a problem, it is an object of the present invention to provide an opening device capable of changing the light transmittance by energization even if it has a sliding sliding door.

  The present invention will be described below. In addition, in order to facilitate understanding of the present invention, reference numerals in the accompanying drawings are added in parentheses, but the present invention is not limited to the illustrated forms.

  One aspect of the present invention is an opening device (1, 101) having a frame body (2) and a sliding door (10, 20) arranged in a frame of the frame body and capable of sliding. The shoji comprises a transparent panel (12) and a light control layer (13) attached to the panel and capable of changing the light transmittance by energization, and one of the frame and the shoji is electrically conductive. The rotating electrodes (31, 35) having the rotating mechanism are provided, and the linear electrodes (32, 36) that move while the rotating electrodes are in rolling contact with the frame body or shoji on the side where the rotating electrodes are not provided. ) Is provided, the opening device.

  Here, the linear electrodes (32, 36) may have a length equal to or larger than the movable range of the shoji (10, 20).

  The light control layer may include polymer dispersed liquid crystal.

  The light control layer may include a suspended particle device.

  The light control layer may include a guest-host liquid crystal.

  The light control layer may include an electrochromic element.

  According to the present invention, even when the shoji slides open and close, the rotating electrode contacts the linear electrode, so that the energized state is maintained and the light transmittance can be changed by energizing.

It is an outdoor front view of the opening apparatus 1 concerning one form. FIG. 3 is a vertical cross-sectional view of the opening device 1. 3 is a diagram illustrating a layer structure of a liquid crystal layer 16. FIG. It is a perspective view explaining the electricity supply means 30. 3 is a vertical cross-sectional view of the opening device 101. FIG. It is a perspective view explaining the electricity supply means 130.

  The present invention will be described below based on the embodiments shown in the drawings. However, the present invention is not limited to this form.

  FIG. 1 is an outdoor front view schematically showing an opening device 1 according to one embodiment. FIG. 2 is a vertical sectional view of the opening device 1. In FIG. 2, the left side of the paper is the outdoor side and the right side of the paper is the indoor side. Hereinafter, the opening device 1 will be described with reference to FIGS.

  The opening device 1 is a frame 2 provided along the edges of four sides of an opening of a building or a vehicle, and a sliding door that is arranged inside the frame 2 and is slidable in a sliding door manner. The shoji screen 10 includes an shoji screen 10, an inner shoji screen 20 which is a door screen inside the frame body 2 and which is arranged inside the outer shoji screen 10 and is slidable and movable in a sliding door manner, and an energizing means 30.

  The frame body 2 is formed by combining longitudinal frames 3 and 4, which are long frame members provided along four sides of an opening of a building or a vehicle, an upper horizontal frame 5, and a lower horizontal frame 6 in a frame shape. Has been done. The cross-sectional shapes of the upper horizontal frame 5 and the lower horizontal frame 6 are shown in FIG. The cross-sectional shapes of the vertical frame 3, the vertical frame 4, the upper horizontal frame 5, and the lower horizontal frame 6 are not particularly limited, and known forms can be applied. However, at least the upper horizontal frame 5 is configured such that a part of the energizing means 30 is arranged inside thereof, as described later. Here, the cross-sectional shape of the upper horizontal frame 5 of this embodiment will be briefly described.

The upper horizontal frame 5 is a frame member arranged along the upper edge of the opening of a building or a vehicle, and its cross section has a predetermined shape by combining a plurality of pieces as can be seen from FIG. Upper ends of the outer shoji screen 10 and the inner shoji screen 20 are arranged on the upper horizontal frame 5. In particular, in the cross section, the upper horizontal frame 5 has a piece 5a extending in the projecting direction (left and right direction of the paper surface), and three pieces 5b, 5c, 5d extending from the piece 5a in the finding direction are arranged in the prospective direction, Two recesses 5e and 5f are formed. Then, the upper ends of the external shoji screen 10 and the internal shoji screen 20 are arranged in the recesses 5e and 5f. As a result, when the outer shoji and the inner shoji 20 move in a sliding manner in the frame body 2, the upper horizontal frame 5 holds and guides the upper ends of the outer shoji and the inner shoji 20.
As will be described later, at least a part of the energizing means 30 is arranged in the recesses 5e and 5f.

  The shoji screen 10 is provided with a panel 11, a door end frame 19a, an outdoor calling frame 19b, an upper horizontal frame 19c, and a lower horizontal frame 19d. Here, the shoji screen 10 is a so-called sliding door that can be slid and moved in the finding direction inside the frame body 2.

In this embodiment, the panel 11 includes a transparent panel 12 and a dimming layer 13, as shown in FIG.
The transparent panel 12 is a transparent glass panel or a resin panel used for a normal opening device. Therefore, as the transparent panel 12, a known one can be used. Although the transparent panel 12 is composed of a single-layer glass panel in this embodiment, a multi-layer glass panel may be used.

The light control layer 13 is a layer laminated on at least one surface of the transparent panel 12, and is a layer whose light transmittance can be changed by energization. In this embodiment, the light control layer 13 is attached to the indoor side surface of the transparent panel 12 with an adhesive.
As the pressure-sensitive adhesive, it is preferable to use a pressure-sensitive adhesive suitable for optical applications. Specifically, it is preferable to select the type and thickness of the pressure-sensitive adhesive so that the total light transmittance of the pressure-sensitive adhesive layer is 90% or more and the haze is 1.0 or less. Commercially available adhesives include CS9621, HJ9150W (manufactured by Nitto Denko), DH425A (manufactured by San-A Kaken), ZACROS TR-1801A (manufactured by Fujimori Kogyo), PD-S1 (manufactured by Panac), MO-3006C, MO-3012C (manufactured by Lintec). ) Etc. can be used.

  FIG. 3 shows the layer structure of the light control layer 13. As shown in FIG. 3, the dimming layer 13 includes a first support plate 14, a second support plate 15 arranged on the first support plate 14 with a predetermined space, and a first support plate 14. The liquid crystal layer 16 is provided between the second support plate 15 and the liquid crystal layer 16.

  The first support plate 14 and the second support plate 15 have a function of supporting the liquid crystal layer 16 so as to sandwich the liquid crystal layer 16 and applying an electric field to the liquid crystal layer 16. The first support plate 14 has a first base material 14a and a first transparent conductive layer 14b provided on one surface of the first base material 14a. The second support plate 15 has a second base material 15a and a second transparent conductive layer 15b provided on one surface of the second base material 15a. In the present embodiment, the light control layer 13 includes a first base material 14a, a first transparent conductive layer 14b, a liquid crystal layer 16, a second transparent conductive layer 15b, and a second base material 15a, which are stacked in this order. Therefore, the first transparent conductive layer 14b is arranged on one surface of the liquid crystal layer 16, and the second transparent conductive layer 15b is arranged on the other surface.

The first base material 14a and the second base material 15a function as supports for supporting the first transparent conductive layer 14b and the second transparent conductive layer 15b, respectively. The material of the first base material 14a and the second base material 15a is not particularly limited, and various transparent film materials having flexibility can be used, for example. Specific examples include polyester resins such as polyethylene terephthalate (PET) and polyethylene naphthalate (PEN), acrylic resins such as polymethylmethacrylate (PMMA), polyolefin resins such as polypropylene (PP), triacelyl cellulose (triacetic acid). A film material containing a cellulose-based resin such as cellulose; TAC), a cycloolefin polymer (COP), a polycarbonate (PC) resin, or the like can be used.
The thickness of the first base material 14a and the second base material 15a is effectively 20 μm or more and 300 μm or less, and more preferably 50 μm or more and 150 μm or less.

  The first transparent conductive layer 14b and the second transparent conductive layer 15b are included in a liquid crystal material dispersed in a polymer matrix of the liquid crystal layer 16 described later by applying an electric field to the liquid crystal layer 16 by being energized. Change the orientation of liquid crystal molecules.

As the first transparent conductive layer 14b and the second transparent conductive layer 15b, it is possible to apply a substantially uniform electric field to the transparent polymer resin layer in which liquid droplets are dispersed in the liquid crystal layer 16, and it is perceived as transparent. Various configurations having different configurations can be applied. For example, a transparent conductive material such as ITO (Indium Tin Oxide), IZO (Indium Zinc Oxide), AZO (Aluminum-doped Zinc Oxide), ZNO (Zinc Oxide), a conductive polymer film, Silver nanowires, carbon nanotubes, etc. can be used. The sheet resistance of the transparent conductive layer is not particularly limited, but it is preferably 100Ω□ or more and 300Ω/□ or less, and the light transmittance is 85% or more.
In the present embodiment, the transparent conductive layer film made of such a transparent conductive material can be used by forming it on the entire surfaces of the above-mentioned transparent first base material and second transparent base material.

  The liquid crystal layer 16 changes the transparency through the liquid crystal layer 16 based on the applied state of the electric field by the first transparent conductive layer 14b and the second transparent conductive layer 15b. In this embodiment, the liquid crystal layer 16 includes a polymer matrix, a liquid crystal material dispersed in the polymer matrix, and spacers.

  The liquid crystal layer 16 can be formed, for example, by mixing a polymerizable monomer, a photopolymerization initiator, and a liquid crystal material having no polymerizable group, and causing phase separation of the liquid crystal when the monomer is photopolymerized. .. As a result, the polymerized monomer forms the polymer matrix of the liquid crystal layer 16, and the liquid crystal material having no phase-separated polymerization group forms the liquid crystal material of the liquid crystal layer 16.

  The liquid crystal material is a liquid material containing liquid crystal molecules having a longitudinal direction. Liquid crystal molecules have a refractive index anisotropy corresponding to their shape. That is, the refractive index of the liquid crystal molecule in the direction orthogonal to the longitudinal direction is different from the refractive index of the liquid crystal molecule in the direction parallel to the longitudinal direction. The liquid crystal material is not particularly limited, but a nematic material such as E7 (Merck Co.) can be used. As the polymerizable monomer, a resin having a monofunctional or polyfunctional polymerizable monomer (polymerizable group) can be used as long as it can cause phase separation of liquid crystal and is transparent. Examples of such a resin include monofunctional (meth)acrylates such as methyl (meth)acrylate, 1,6-hexanediol di(meth)acrylate, trimethylolpropane tri(meth)acrylate, pentaerythritol tetra(meth)acrylate. ) Polyfunctional (meth)acrylates such as acrylate, dipentaerythritol penta(meth)acrylate, and dipentaerythritol hexa(meth)acrylate. The expression (meth)acrylate means acrylate or methacrylate. In addition to acrylics, as a cationically polymerizable monomer, alicyclic epoxides such as 3,4-epoxycyclohexenylmethyl-3′,4′-epoxycyclohexenecarboxylate, glycidyl ethers such as bisphenol A diglycidyl ether, etc. And the like. These polymerizable monomers may be used alone or in combination of two or more depending on the required performance, coating suitability and the like.

  The photopolymerization initiator is not particularly limited, and various photopolymerization initiators can be used. For example, as benzoin and its alkyl ether compounds, benzyl ketals, acetophenones, and acetophenones, for example, hydroxyacetophenone, aminoacetophenone, dialkoxyacetophenone, halogenated acetophenone and the like can be used. As these photopolymerization initiators, commercial products such as Irgacure (registered trademark) 907, Irgacure 651, and Irgacure 184 are commercially available, and these can be used alone or in combination.

  The spacer has a function of keeping the distance between the first support plate 14 and the second support plate 15 at a predetermined size, thereby maintaining the thickness of the liquid crystal layer 16 at a predetermined size. As the spacer, for example, a resin bead having high light transmittance such as plastic beads can be used. The shape of the spacer is not particularly limited, and may be spherical or another shape.

  In the light control layer 13 thus formed, the refractive index in the direction orthogonal to the longitudinal direction of the liquid crystal molecules and the refractive index of the polymer matrix are aligned when the liquid crystal molecules are aligned. In this state, the light incident on the dimming layer 13 can pass through the dimming layer 13 without greatly bending the traveling direction. That is, the dimming layer 13 is in a low haze state when the liquid crystal molecules are aligned. Therefore, at this time, the light control layer 13 is transparent and has a high light transmittance.

  On the other hand, in the light control layer 13, when the liquid crystal molecules are not aligned, the longitudinal direction of the liquid crystal molecules is irregular depending on the polymer matrix located near the liquid crystal molecules. In this state, the light incident on the light control layer 13 is diffused. That is, the haze of the light control layer 13 is high when the liquid crystal molecules are not aligned. At this time, the light control layer 13 becomes clouded, the light transmittance is low, and the visibility on the opposite side through the light control layer 13 is poor.

  In this embodiment, the example in which the light control layer is formed by including the polymer-dispersed liquid crystal has been shown. However, the present invention is not limited to this as long as the light transmittance can be changed by energization, and the light control layer includes a suspended particle device, the light control layer includes a guest-host liquid crystal, and the light control layer. Can also be configured by a mode including an electrochromic device.

  The door end frame 19a is a vertical frame provided along one of the four sides of the panel 11 which is arranged on the door end side. The outer calling frame 19b is a vertical frame that is provided along one of the vertical edges of the panel 11 and serves as a calling portion. Known forms can be applied to the door end frame 19a and the outside dining frame 19b.

  The upper horizontal frame 19c is a frame arranged along the upper edge of the panel 11, and the lower horizontal frame 19d is a frame arranged along the lower edge of the panel 11. The upper horizontal frame 19c and the lower horizontal frame 19d have the predetermined cross section shown in FIG. 2 and extend in the longitudinal direction (backward/frontward direction in FIG. 2). However, the upper horizontal frame 19c and the lower horizontal frame 19d are not limited to this form, and a known form can be applied.

  The inner shoji 20 has a panel 11, a door end frame 29a, an in-house combination frame 29b, an upper horizontal frame 29c, and a lower horizontal frame 29d. Here, the inner shoji 20 is a so-called sliding door that can be moved by sliding the inside of the frame body 2 in the finding direction on the indoor side of the outer shoji 10. The inner shoji screen 20 has the same structure as the outer shoji screen 10, and therefore the description thereof is omitted here.

  The energizing unit 30 is a unit that energizes the dimming layer 13 while sliding the outer shoji 10 and the inner shoji 20 to be opened and closed. The energizing means 30 is provided in each of the external shoji 10 and the internal shoji 20. Here, the energizing means 30 on the side of the inner shoji 20 will be described, but the energizing means on the side of the outer shoji 10 is also the same. FIG. 4 is a view seen from the direction shown by an arrow IV in FIG. 2, showing a top end portion of the inner shoji 20 by omitting a part of the members, and a view for explaining the structure of the energizing means 30. .. As can be seen from FIGS. 2 and 4, the energizing means 30 has a first rotary electrode 31, a first linear electrode 32, a conductive wire 33, a second rotary electrode 35, a second linear electrode 36, and a conductive wire 37. Has been done.

The first rotary electrode 31 includes a conductive shaft 31a, a conductive disk-shaped rotor 31b rotatable about the shaft 31a, a shaft 31a, and the first transparent layer of the liquid crystal layer 16 described above. It is configured to have a conductive wire 31c that electrically connects the conductive layer 14b.
In this embodiment, the shaft 31a is a rod-shaped conductive member that is erected from the side of the upper horizontal frame 19c opposite to the side on which the panel 11 is arranged.
The rotor 31b is a disk-shaped conductive member that is rotatably held with the shaft 31a as a rotation axis. Therefore, the shaft 31a and the rotor 31b are always electrically connected.
The conducting wire 31c is a conducting wire having one end connected to the shaft 31a and the other end connected to the first transparent conductive layer 14b of the liquid crystal layer 16.

The first linear electrode 32 is a linear electrode formed in a strip shape. The length of the first linear electrode 32 is preferably equal to or larger than the movable range of the shoji screen 10 so that the first rotating electrode is in contact with the first shovel electrode 10 even when the shoji screen 10 is moving.
The conducting wire 33 is a conducting wire connected from the first linear electrode 32 to a power source arranged outside the opening device 1.

The second rotating electrode 35 includes a conductive shaft 35a, a conductive disk-shaped rotor 35b rotatable about the shaft 35a, and the shaft 35a, and the second transparent conductive film of the liquid crystal layer 16 described above. It is configured to have a conductive wire 35c that electrically connects to the layer 15b.
In the present embodiment, the shaft 35a is a rod-shaped conductive member that is erected from the side of the upper horizontal frame 19c opposite to the side on which the panel 11 is arranged.
The rotor 35b is a disk-shaped conductive member rotatably held with the shaft 35a as a rotation axis. Therefore, the shaft 35a and the rotor 35b are always electrically connected.
The conducting wire 35 c is a conducting wire having one end connected to the shaft 35 a and the other end connected to the second transparent conductive layer 15 b of the liquid crystal layer 16.

The second linear electrode 36 is a linear electrode formed in a strip shape. Since the second linear electrode 32 is in contact with the second rotary electrode 35 even during movement of the shoji screen 10, the length of the second linear electrode 32 is preferably equal to or larger than the movable range of the shoji screen 10.
The conducting wire 37 is a conducting wire connected from the second linear electrode 36 to a power source arranged outside the opening device 1.

The energizing means 30 having the above configuration is combined with other members as follows.
The shaft 31a of the first rotating electrode 31 is erected on the upper frame 19c. Then, the rotor 31b is installed so as to rotate parallel to the horizontal direction with the shaft 31a as an axis. In addition, the shaft 31a and the first transparent conductive layer 14b of the light control layer 13 are electrically connected by a conductive wire 31c.
On the other hand, as can be seen from FIG. 2 and FIG. 4, the first linear electrode 32 is disposed inside the piece 5d of the upper horizontal frame 5 (the surface on the side where the inner shoji 20 is arranged) in the longitudinal direction (inside) of the piece 5d. The shoji screen 20 is arranged in the moving direction). The first linear electrode 32 is electrically connected to an external power source by a conductor 33.
In addition to this, in the posture in which the inner shoji 20 is arranged inside the frame of the frame body 2, the shaft 31a, the rotor 31b, and the first linear electrode 32 are arranged inside the upper horizontal frame 5 inside. It is hidden from the appearance. At that time, the side end surface of the rotor 31b comes into contact with the surface of the first linear electrode 32, and the end surface of the rotor 31b rolls on the surface of the first linear electrode 32 following the movement of the inner screen 20. Move to.

Similarly, the shaft 35a of the second rotating electrode 35 is erected on the upper frame 19c. The rotor 35b is installed so as to rotate parallel to the horizontal direction with the shaft 35a as an axis. The shaft 35a and the second transparent conductive layer 15b of the light control layer 13 are electrically connected to each other by a conductive wire 35c.
On the other hand, as can be seen from FIGS. 2 and 4, the second linear electrode 32 is disposed inside the piece 5d of the upper horizontal frame 5 (the surface on the side on which the inner shoji 20 is disposed) in the longitudinal direction of the piece 5d. The shoji screen 20 is arranged in the moving direction). The second linear electrode 36 is electrically connected to an external power source by a conductor 37.
In addition to this, in the posture in which the inner shoji 20 is arranged inside the frame of the frame body 2, the shaft 35a, the rotor 35b, and the second linear electrode 36 are arranged inside the upper horizontal frame 5 inside. It is hidden from the appearance. Then, at that time, the side end surface of the rotor 35b contacts the surface of the second linear electrode 36, and the end surface of the rotor 35b rolls on the surface of the second linear electrode 36 following the movement of the inner screen 20. Move to.

  According to the opening device 1 as described above, in addition to the normal function as the opening device, it is possible to change the light transmittance in the light control layer 13 by energization from the outside. The visibility of the other side through can be changed. In addition, even in that case, the shoji can be opened and closed in a sliding door manner while the power is maintained, which enhances the convenience of the opening device.

  FIG. 5 and FIG. 6 show diagrams for explaining the opening device 101 of another form. 5 is a diagram corresponding to FIG. 2, and FIG. 6 is a diagram corresponding to FIG. The opening device 101 of the present embodiment is an example in which the energizing means 130 is applied instead of the energizing means 30 of the opening device 1 described above. Therefore, since the components other than the energizing unit are the same, only the energizing unit 130 will be described here. In the energizing means 130 of the present embodiment, the first rotary electrode 31 and the second rotary electrode 35 are arranged on the upper horizontal frame 5 side, and the first linear electrode 32 and the second linear electrode 36 are provided on the inner shoji 20 side. There is. More details are as follows.

  The energizing means 130 is also means for energizing the light control layer 13 while allowing the outer shoji 10 and the inner shoji 20 to slide and open and close. The energizing means 130 is provided in each of the external shoji 10 and the internal shoji 20. Here, the energizing means 130 on the side of the inner shoji screen 20 will be described, but the energizing means on the side of the outer shoji screen 10 is also the same. As can be seen from FIGS. 5 and 6, the energizing means 130 is also configured to include the first rotary electrode 31, the first linear electrode 32, the conductive wire 33, the second rotary electrode 35, the second linear electrode 36, and the conductive wire 37. ing.

The first rotary electrode 31 of the present embodiment includes a shaft 31a having conductivity and a disk-shaped rotor 31b having conductivity which is rotatable around the shaft 31a.
In this embodiment, the shaft 31a is a rod-shaped conductive member provided so as to hang down toward the side where the inner shoji 20 is arranged among the pieces 5a of the upper horizontal frame 5.
The rotor 31b is a disk-shaped conductive member rotatably held with the shaft 31a as a rotation axis. Therefore, the shaft 31a and the rotor 31b are always electrically connected.

  The first linear electrode 32 is a strip-shaped electrode. In the present embodiment, the first linear electrode 32 and the first transparent conductive layer 14b of the liquid crystal layer 16 are electrically connected by the conducting wire 31c. Further, the conductive wire 33 is a conductive wire connected from the shaft 31a to a power source arranged outside the opening device 101.

The second rotary electrode 35 is configured to have a shaft 35a having conductivity and a disk-shaped rotor 35b having conductivity which is rotatable about the shaft 35a.
In the present embodiment, the shaft 35a is a rod-shaped conductive member that is provided so as to hang down toward the side on which the inner shoji 20 is arranged among the pieces 5a of the upper horizontal frame 5.
The rotor 35b is a disk-shaped conductive member that is rotatably held with the shaft 35a as a rotation shaft. Therefore, the shaft 35a and the rotor 35b are always electrically connected.

  The second linear electrode 36 is a strip-shaped electrode. Then, in the present embodiment, the second linear electrode 36 and the second transparent conductive layer 15b of the liquid crystal layer 16 are electrically connected by the conducting wire 35c. Further, the conductive wire 37 is a conductive wire connected from the shaft 31a to a power source arranged outside the opening device 101.

The energizing means 130 having the above configuration is combined with other members as follows.
The shaft 31a of the first rotating electrode 31 is provided so as to hang down from the upper horizontal frame 5 toward the inner shoji 20. Then, the rotor 31b is installed so as to rotate parallel to the horizontal direction with the shaft 31a as an axis. Further, the shaft 31a is electrically connected to an external power source by a conductor 33.
On the other hand, as can be seen from FIGS. 5 and 6, the first linear electrode 32 is erected from the upper horizontal frame 29c toward the upper horizontal frame 5 and is arranged in the longitudinal direction of the upper horizontal frame 29c. It is arranged so as to extend in the moving direction). The first linear electrode 32 is electrically connected to the first transparent conductive layer 14b of the light control layer 13 by the conducting wire 31c.
In addition to this, in the posture in which the inner shoji 20 is arranged inside the frame of the frame body 2, the shaft 31a, the rotor 31b, and the first linear electrode 32 are arranged inside the upper horizontal frame 5, It is hidden from the appearance. At that time, the side end surface of the rotor 31b comes into contact with the surface of the first linear electrode 32, and the end surface of the rotor 31b rolls on the surface of the first linear electrode 32 following the movement of the inner screen 20. Move to.

Similarly, the shaft 35a of the second rotating electrode 35 is provided so as to hang down from the upper horizontal frame 5 toward the inner shoji 20. The rotor 35b is installed so as to rotate parallel to the horizontal direction with the shaft 35a as an axis. The shaft 35a is electrically connected to an external power source by a conductor 37.
On the other hand, as can be seen from FIGS. 5 and 6, the second linear electrode 36 is erected from the horizontal upper frame 29c toward the upper horizontal frame 5 and is arranged in the longitudinal direction of the upper horizontal frame 29c (in which the inner shoji 20 It is arranged so as to extend in the moving direction). The second linear electrode 32 is electrically connected to the second transparent conductive layer 15b of the light control layer 13 by the conductive wire 35c.
In addition to this, in the posture in which the inner shoji 20 is arranged inside the frame of the frame body 2, the shaft 35a, the rotor 35b, and the second linear electrode 36 are arranged inside the upper horizontal frame 5. It is hidden from the appearance. Then, at that time, the side end surface of the rotor 35b contacts the surface of the second linear electrode 36, and the end surface of the rotor 35b rolls on the surface of the second linear electrode 36 following the movement of the inner screen 20. Move to.

  Even with the opening device 101 as described above, in addition to the normal function as the opening device, it is possible to change the light transmittance of the light control layer 13 by externally energizing the opening device 1. The visibility of the other side through can be changed. In addition, even in that case, the shoji can be opened and closed in a sliding door type while maintaining the energization, which enhances the convenience of the opening device.

  In the example described above, the opening device in the form that the shoji opens and closes to the left and right in the sliding door type has been described, but the same can be applied to an opening device in the form of a raising and lowering window in which the shoji slides up and down. ..

1, 101 Opening Device 2 Frame 3 Vertical Frame 4 Vertical Frame 5 Upper Horizontal Frame 6 Lower Horizontal Frame 10 External Shoji (shoji)
11 Panel 12 Transparent Panel 13 Light Control Layer 14 First Support Plate 14a First Substrate 14b First Transparent Conductive Layer 15 Second Support Plate 15a Second Substrate 15b Second Transparent Conductive Layer 16 Liquid Crystal Layer 19a Door End Frame 19b Calling Matching frame (Outdoor calling frame)
19c Upper horizontal frame 19d Lower horizontal frame 20 Inner shoji 30 Energizing means 31 First rotating electrode 32 First linear electrode 33 Conductive wire 35 Second rotating electrode 36 Second linear electrode 37 Conductive wire

Claims (6)

An opening device having a frame and a sliding door that is slidably arranged in the frame of the frame,
The shoji screen includes a transparent panel and a light control layer that is attached to the panel and is capable of changing the light transmittance by energization.
One of the frame or the shoji is equipped with a rotating electrode having a conductive rotating mechanism,
When the rotary electrode is provided on the shoji, the rotary electrode has a shaft of the shoji frame, which is erected from the side opposite to the end face side of the panel, and a rotor which rotates around the shaft, Or, when the rotary electrode is provided on the frame, it has a shaft that hangs from the frame toward the shoji and a rotor that rotates around the shaft,
The opening device, wherein the frame or the shoji on the side where the rotary electrode is not provided is provided with a linear electrode that moves while the rotary electrode is in contact while rolling.   The opening device according to claim 1, wherein the linear electrode has a length equal to or larger than a movable range of the shoji screen.   The opening device according to claim 1, wherein the light control layer includes a polymer-dispersed liquid crystal.   An opening device according to claim 1 or 2, wherein the light control layer comprises a suspended particle device.   3. The aperture device according to claim 1, wherein the light control layer includes a guest-host liquid crystal.   The opening device according to claim 1, wherein the light control layer includes an electrochromic element.

Images