JP5304769B2 - Blind device - Google Patents

Description

  The present invention relates to a blind device that is arranged on a window of a building and blinds the room and shields it from light.

  A blind device is known in which a plurality of blades (slats) are arranged vertically in a building window to blind and shade the interior of the room by raising, lowering, and tilting the blades. A raising / lowering device for raising / lowering and a tilting mechanism (tilt mechanism) for tilting the blades are provided. In the blind device installed on the indoor side, when the window is completely opened, usually, the plurality of blades stacked and bundled with each other are arranged on the ceiling side.

JP 2004-156289 A

  By the way, in the blind device, a plurality of blades stacked and bundled on top of each other so that sufficient lighting can be obtained when necessary without fully obstructing the view from the window when the window is fully opened. It is preferable to be arranged on the ceiling side without largely covering, but because of the occupied space between the blade lifting / lowering device and the blade tilting mechanism, these bundled blades are used unless the ceiling is raised. There is a risk that the upper part of the window will be greatly covered.

  In a blind device, generally, a plurality of blades are connected to each other by a link mechanism having a string-like body. However, when a plurality of blades are bundled with the window fully opened, the plurality of blades are connected to each other. In addition to the fact that it hangs down to the outside and impairs the aesthetics of the room, if such a sag to the outside partially occurs, the left and right heights of the blades become uneven, which also impairs the aesthetics.

  In addition, in the blind device installed at the window, it is preferable to perform frequent cleaning because it may be contaminated early with dust or the like. As a result of being inferior in assembling and disassembling because of being connected to each other, cleaning requires a lot of time and may involve a large-scale work.

  Further, in the blind device, a plurality of blades are connected to each other by a link mechanism, and as a result of being hung down by the window when shaded or blindfolded, there is a risk of being shaken by the outside wind or the wind of the indoor airflow system. Such shaking of the blades shortens the life of the link mechanism and possibly damages the surroundings.

  The present invention has been made in view of the above points, and its object is to arrange a plurality of bundled blades on the ceiling side as much as possible, and to provide sufficient lighting without obstructing the view from the window. It is in providing the blind device which can obtain.

  Another object of the present invention is to provide a blind device that can eliminate the hanging of the string-like body from between the blades to the outside and is excellent in beauty.

  Still another object of the present invention is to provide a blind device which is excellent in assembling and disassembling, can reduce the manufacturing cost, and can be easily cleaned.

  Still another object of the present invention is to provide a blind device capable of holding a plurality of blades hanging from a window so as not to be shaken by wind and causing an unexpected accident and improving a product life. There is.

  The blind device according to the present invention includes a plurality of blades juxtaposed to each other, a link mechanism that interconnects the plurality of blades, and the lowermost blade of the plurality of blades, and the lower blade is lowered. And a tilting mechanism for tilting the plurality of blades in synchronization with the raising and lowering of the blades. Here, the link mechanism is connected to the front edge of the plurality of blades. An edge link member and a trailing edge link member connected to the trailing edge of the plurality of blades, and the tilting mechanism is connected to the upper edge of the leading edge link member at the leading edge and the trailing edge A swingable member connected to the upper end of the link member at the rear edge, and a rotatable arm member fixed to an intermediate portion between the front edge and the rear edge of the swingable member at one end; And rotating means for rotating the rotatable arm member. There.

  According to the blind device of the present invention, since the swingable member is connected to the rotation means via the rotatable arm member, the rotation means can be disposed on the side of the swingable member, and thus The plurality of bundled blades positioned below the swingable member can be arranged as close to the ceiling as possible, and sufficient lighting can be obtained without obstructing the view from the window.

  In the blind device according to the present invention, the rotating means is rotatably connected to the other end of the rotatable arm member at one end and is connected to the other end of the connecting arm member. A rotating body that is freely connected, a rotating mechanism that rotates the rotating body, and a blocking mechanism that prevents the rotating body from rotating more than a certain amount may be provided. The connecting arm member is connected to the connecting arm member at one end, and the connecting pin member is connected to the rotating body at the other end, and the rotating mechanism has a rotating shaft that generates rotating power and rotates with the generated rotating power. A rotation power source and a transmission mechanism for transmitting the rotation of the rotation shaft of the rotation power source to the rotating body, and the blocking mechanism has a fixed plate having an arc-shaped guide hole through which the connecting pin member passes. Have and communicate The structure includes an idling mechanism that idles the rotating shaft of the rotating power source with respect to the rotating body when the rotational load of the rotating body increases due to the contact of the connecting pin member with the fixed plate at the end of the guide hole. May be.

  In the blind device of the present invention, the rotating means is linearly moved based on the input rotation and the linearly movable member that is movably connected to the other end of the rotatable arm member at one end and is linearly movable. It may be provided with a rotation-linear motion conversion mechanism for linearly moving the universal member and a blocking mechanism for preventing the linear motion of the linearly movable member beyond a certain level. In such a blind device, the linearly movable member is also provided. Is provided with a guide hole extending in the linear movement direction, the blocking mechanism has a fixed pin member that passes through the guide hole of the linearly movable member, and the rotating means is generated together with generating rotational power. A rotational power source having a rotational shaft that rotates with rotational power, and a transmission mechanism that transmits the rotation of the rotational shaft of the rotational power source to a rotation-linear motion conversion mechanism, Fixed pin for linearly movable member at the end of the guide hole If the linear motion load of the rotation-linear motion conversion mechanism increases due to contact with the material, an idle rotation mechanism that idles the rotation shaft of the rotational power source relative to the rotation-linear motion conversion mechanism may be provided. The linear motion conversion mechanism may include a gear rotated by rotation input from the transmission mechanism, and a gear rotated at a reduced speed with respect to the rotation of the gear and meshed with the linearly movable member. Good.

  In the present invention, the idling mechanism is provided with a sliding mechanism for idling the rotation shaft of the rotational power source with respect to the rotation-linear motion conversion mechanism in a preferred example.

  According to the blind device of the present invention equipped with the above-described rotation-linear motion conversion mechanism, the blade can be raised and lowered at a low speed, and the blade can be opened halfway and the blade tilt angle can be accurately set. . Further, according to the blind device of the present invention having the blocking mechanism, even if the rotational power source malfunctions, the plurality of blades can be arranged at regular positions, and the complete opening and complete closing of the window can be reliably obtained.

  In the blind device of the present invention, each of the leading edge link member and the trailing edge link member is fixed to the flat flexible belt-like body at a predetermined interval and connected to each other by the belt-like body. The shaft member includes a substantially rectangular shaft member main body, a shaft support portion integrally provided on each side surface of one end portion of the shaft member main body, and each shaft support portion. The blade has a receiving hole that rotatably receives the shaft portion of the shaft member so that the blade is supported by the link mechanism. The belt-like body extends through the inside of the shaft member main body and between the shaft support portions and is fixed to the shaft member main body, and the upper blade is lower than the lower blade in the two adjacent blades in the vertical direction. On the top and bottom The upper surface of the shaft support portion of the shaft member related to the lower blade that the lower end surface of the shaft support portion of the shaft member contacts the upper blade member so that the shaft member main body related to the upper blade falls toward the center portion of the upper blade. In addition, the blade may be inclined so as to gradually increase toward the center of the lateral edge of the lower blade. In this case, the blade is a shaft member when the blades are overlapped with each other in the vertical direction. It is preferable to have a recess for housing the main body on the upper outer surface thereof, and the lower end surface of the shaft support portion of the shaft member may have an arc surface, and according to such a blind device, When the upper blade is overlapped with respect to the upper blade in the vertical direction, the rotation direction of the shaft support portion can be specified so that the belt can be disposed between the two blades stacked in the vertical direction. Hanging out from between the feathers of the body And it is excellent in appearance and obtained eliminating the fall.

  Further, in the blind device of the present invention, the blade has a notch communicating with the receiving hole, and the shaft portion of the shaft member is preferably detachable with respect to the receiving hole through the notch. According to the blind device, the blades can be easily removed from the link mechanism, and the blades can be attached to the link mechanism again after being removed. As a result, the assembly and disassembly are excellent, and the manufacturing cost can be reduced. It can be done easily.

  In a preferred example of the blind device of the present invention, the blade includes a long blade body, a support member that supports the lateral edge portion of the blade body, and a connection mechanism that connects the support member to the lateral edge portion of the blade body. The supporting member includes a plate portion that overlaps with the lateral edge portion of the blade body, and a front edge grip portion that is provided integrally with the plate portion and grips the front edge portion of the lateral edge portion of the blade body. And a trailing edge gripping portion that is provided integrally with the plate portion and grips the trailing edge portion of the lateral edge portion of the blade body, and the coupling mechanism is attached to one of the blade body and the support member. A recess provided integrally, and a protrusion provided on the other of the blade body and the support member and fitted in the recess. According to the blind device of this example, The blade body and the support member can be easily assembled and disassembled. On that can better reduce the manufacturing cost, it can easily perform cleaning.

  Further, in the blind device of the present invention, the ascending / descending mechanism includes a cradle that contacts the lowermost blade and receives the wing, and is connected to the cradle at one end and penetrates the lateral edge of each blade. A lifting and lowering string-like body, and a traveling means for running the string-like body in synchronization with the tilting operation of the tilting mechanism, the traveling means includes a pulley around which the lifting and lowering string-like body is wound, A rotational power source that generates rotational power for rotating the pulley and has a rotational shaft that rotates with the generated rotational power, the rotational power source being shared with the rotating means, The rotation of the rotary shaft may cause rotation of the rotatable arm member in addition to rotation of the pulley. In this case, the ascending / descending mechanism further includes a turning pulley between the cradle and the pulley. You may have a string for lifting It may be hanging vertically through the diverting pulley. The cradle may be provided separately from the blades, but may be the bottommost blade cradle. In this case, the bottommost blade as the cradle is the blade above the blade. The lowermost blade of the blade contacts the blade and receives the blade.

  In a preferred example of the blind device according to the present invention, the blade has a through-hole through which the elevating string-like body penetrates at the lateral edge portion, and the through-hole corresponds to the cross-sectional shape of the elevating string-like body. A central hole defined on the inner peripheral surface of the blade and an enlarged hole communicating with the central hole, and the enlarged hole is an edge of the inner peripheral surface of the blade defining the central hole. Is defined by one inclined surface of the blade extending from the blade toward the trailing edge of the blade, and the other edge of the inner peripheral surface of the blade defining the central hole is terminated at the outer surface of the lower side of the blade In this case, the elevating string-like body is formed of a flat flexible belt-like body, and the central hole has a rectangular shape corresponding to the rectangular cross-sectional shape of the belt-like body, and the inclined surface of the blade Is preferably a flat surface that extends toward the trailing edge of the blade and terminates at the outer surface on the upper side of the blade. The inner peripheral surface and the inclined surface of the blades are arranged so as to extend straight in the through hole without being bent in the through hole even when the blade is tilted to the maximum by the tilting mechanism. According to such a blind device, in the tilting of the blade, the lifting string can extend straight without being affected by the tilting of the blade, and the blade is obstructed by the lifting string. In addition to being tilted without being moved, it is possible to travel the lifting and lowering string without being obstructed by the blades.

  The blind device of the present invention may further include holding means for holding the blade so as to prevent the blade from swinging in a horizontal plane. In this case, the holding means penetrates the lateral edge of the blade. And both ends may be fixed and may be provided with a holding string-like body extending vertically, and the blade has a holding through-hole through which the holding string-like body penetrates at a lateral edge portion thereof. The holding through-hole extends toward the trailing edge of the blade and terminates at one inclined surface of the blade that terminates at the upper outer surface of the blade and toward the leading edge of the blade. May be defined by the other inclined surface of the blade extending and terminating at the lower outer surface of the blade, and the holding through hole is connected to one inclined surface of the blade and One flat surface that terminates on the outer surface of the side and the other inclined surface of the blade May be further defined by the other flat surface terminating at the outer surface, the one flat surface and the other flat surface being parallel to each other and substantially the width of the holding string. One and the other inclined surfaces of the blades that define the holding through hole may be held in the holding through hole even when the blade is tilted to the maximum by the tilting mechanism. The string-like body is preferably arranged so as to extend straight without being bent, and in these cases, the blade includes a long blade body and a support member that supports a lateral edge of the blade body. The holding through-hole may be provided in the central portion between the front edge portion and the rear edge portion of the support member. The blade body, a support member that supports the lateral edge of the blade body, and the front edge of the support member A string-like body holder fitted in the central portion between the rear edge part and the holding through hole may be provided in the string-like body holder, In any case, the holding string-like body is made of a steel wire in a preferred example, but may be made of other ropes or the like, and according to the blind device provided with such holding means, it hangs down by the window. According to the blind device having the holding through hole as described above, it is possible to hold a plurality of blades so as not to be shaken by the wind and cause an unexpected accident and improve the product life. In the tilting of the blade, the holding string can extend straight without being affected by the tilt of the blade, and the blade is tilted, raised and lowered without being blocked by the holding string. It will be.

  According to the present invention, a plurality of bundled blades can be arranged on the ceiling side as much as possible, and sufficient lighting can be obtained without obstructing the field of view from the window. It can eliminate drooping, has excellent aesthetics, is easy to assemble and disassemble, reduces manufacturing costs, is easy to clean, and can hold multiple blades hanging from the window so that it does not shake due to wind. Therefore, it is possible to provide a blind device that does not cause an unexpected accident and can improve the product life.

It is side explanatory drawing of the preferable example of embodiment of this invention. It is a partially expanded side surface explanatory view of the example shown in FIG. FIG. 2 is a partially enlarged plan cross-sectional explanatory diagram of the example shown in FIG. 1. FIG. 2 is a partially enlarged front sectional explanatory view of the example shown in FIG. 1. FIG. 2 is a partially exploded perspective view of the example shown in FIG. 1. FIG. 2 is a partially exploded perspective view of the example shown in FIG. 1. FIG. 2 is a detailed explanatory diagram of a part of the example shown in FIG. 1. FIG. 2 is a detailed explanatory diagram of a part of the example shown in FIG. 1. FIG. 2 is a detailed explanatory diagram of a part of the example shown in FIG. 1. It is operation | movement explanatory drawing of the example shown in FIG. It is operation | movement explanatory drawing of the example shown in FIG. It is operation | movement explanatory drawing of the example shown in FIG. It is a partial side surface explanatory view of other preferable examples of an embodiment of the invention. FIG. 14 is a partially enlarged plan cross-sectional explanatory diagram of the example shown in FIG. 13. It is operation | movement explanatory drawing of the example shown in FIG. It is a partial detailed explanatory view of still another preferred example of the embodiment of the present invention. It is operation | movement explanatory drawing of the example shown in FIG.

  Next, the present invention and its embodiments will be described in more detail based on preferred examples shown in the drawings. The present invention is not limited to these examples.

  1 to 9, the blind device 1 of this example is arranged so as to shield and blind the windows 2 of the building, and connects the plurality of blades 3 juxtaposed to each other and the plurality of blades 3 to each other. Link mechanism 4, a raising / lowering mechanism 5 that raises the lowest blade 3 among the plurality of blades 3 in the A direction and lowers the lowest blade 3 in the B direction, and A and B of the blade 3. A tilting mechanism 6 for tilting the plurality of blades 3 in the R1 direction in synchronization with the upward and downward movements of the direction, and a holding means 7 for holding the blades 3 so as to prevent the blades 3 from swinging in the horizontal plane. ing.

  As shown in FIG. 1 in particular, the window 2 has a glass 9 attached to a window sash 8, and the window sash 8 is attached to a window frame 10 of the building frame.

  As shown in FIGS. 5 and 6, each of the blades 3 includes a long and curved aluminum plate blade body 21, and a support member 23 that supports one lateral edge 22 of the blade body 21. The support member 23 is connected to the string-like body holder 27 fitted to the central portion 26 between the front edge portion 24 and the rear edge portion 25 of the support member 23 and the lateral edge portion 22 of the blade body 21. And a coupling mechanism 28.

  The blade body 21 is integrally provided with a wide portion 29 and a lateral edge portion 22 narrower than the wide portion 29.

  As shown in FIGS. 5 and 6, the support member 23 that is integrally formed from a synthetic resin and serves as a lateral edge of the blade 3 includes a plate portion 31 that overlaps with the lateral edge portion 22 of the blade body 21, and a plate A front edge gripping portion 33 that is provided integrally with the portion 31 and grips the front edge portion 32 of the lateral edge portion 22 of the blade body 21; A rear edge grip portion 35 that grips the rear edge portion 34 of the edge portion 22 and a pair of rectangular notches 37 that are provided on the front edge portion 24 and the rear edge portion 25 and in which the shaft member 36 of the link mechanism 4 is disposed. And a pair of receiving holes 39 provided in the front edge portion 24 and the rear edge portion 25 for rotatably supporting the shaft portion 38 of the shaft member 36, and each receiving portion. A notch 40 communicating with the hole 39 and an upper outer surface (surface) 41 are arranged. In addition, when the blades 3 are superposed on each other in the vertical direction (in the state of the lower blade 3 shown in FIG. 2), a recess 43 for housing the shaft member main body 42 of the shaft member 36 and a string for raising and lowering the blade 3 A through-hole 45 through which a flat flexible belt-like body 44 as a body is penetrated, a hole 46 into which the string-like body holder 27 is rotatably fitted, and a string-like body holder 27 from the support member 23 And a through-hole 47 for allowing removal.

  As shown in FIG. 8, the through hole 45 has a shape corresponding to the cross-sectional shape of the belt-like body 44 that is a string-like body for raising and lowering, and is defined by the inner peripheral surface 51 of the support member 23 of the blade 3. A hole 52 and an enlarged hole 53 communicating with the central hole 52 are provided. The enlarged hole 53 extends from the edge of the inner peripheral surface 51 of the support member 23 that defines the central hole 52 to the support member 23 of the blade 3. One inclined surface 54 of the support member 23 extending toward the rear edge 25 and the support member 23 extending from one edge of the inner peripheral surface 51 toward the front edge 24 of the support member 23 of the blade 3. The other edge of the inner peripheral surface 51, which is defined by the other inclined surface 55 and defines the central hole 52, is terminated by the lower outer surface 56 of the support member 23 that is the lower outer surface (back surface) of the blade 3. The inclined surface 54 is a flat surface that extends toward the rear edge 25 and is above the blade 3. The inclined surface 55 is a flat surface that extends toward the front edge 24 and terminates at the outer surface 41, and the inner peripheral surface 51 that defines the through hole 45. As shown in FIG. 12, the inclined surface 54 is arranged so as to extend straight without the belt-like body 44 being bent even when the blade 3 is tilted to the maximum by the tilting mechanism 6.

  The upper surface 57 of the support member 23 that defines the bottom surface of the recess 43 is inclined so as to gradually increase toward the central portion 26 of the support member 23, and the lower side of the two blades 3 adjacent to each other in the vertical direction. When the upper blade 3 is overlapped with the other blade 3 in the vertical direction, the shaft member main body 42 of the shaft member 36 comes into contact with the upper surface 57.

  As shown in FIGS. 5 and 6, the string-like body holder 27 that constitutes the lateral edge portion of the blade 3 together with the support member 23 is integrally formed with a cylindrical portion 62 having a holding through-hole 61 and the cylindrical portion 62. And has a bifurcated portion 64 having a claw portion 63 for retaining it on its outer peripheral surface, and is fitted in the hole 46 so as to be rotatable in a snap foot manner at the bifurcated portion 64. In the string-like holder 27 in which the steel wire 65 that is a holding string-like body passes through the through hole 61, the wire 65 is bent even when the blade 3 is tilted to the maximum by the tilting mechanism 6. The support member 23 is rotatable so that the straight state can be maintained without trying, and the bifurcated portion 64 can be removed from the hole 46 by reducing the diameter through the through hole 47. ing.

  As shown in FIG. 7 in particular, the coupling mechanism 28 includes a through hole 67 as a recess provided integrally with the lateral edge 22 of the blade body 21 which is one of the blade body 21 and the support member 23, A projection 68 that fits into the through-hole 67 and is integrally provided on the lower outer surface 56 of the support member 23 that is the other of the blade body 21 and the support member 23 is provided. The protrusion 68 is adapted to be fitted into the through hole 67 in a snap-fit manner when inserted into the front edge gripping portion 33 and the rear edge gripping portion 35 of the lateral edge portion 22, and thus the blade body 21 is It can be attached to and detached from the support member 23 via the coupling mechanism 28.

  The link mechanism 4 includes a front edge link member 71 connected to the front edge portion 24 of the support member 23 of each blade 3, and a rear edge link member 72 connected to the rear edge portion 25 of the support member 23 of each blade 3. It has.

  Each of the leading edge link member 71 and the trailing edge link member 72 is a flat flexible strip 73 made of synthetic fiber, and is fixed to the strip 73 with a certain interval and is connected to each other by the strip 73. And a shaft member 36 made of synthetic resin.

  The band-like body 73 extends through the inside of the shaft member main body 42 and between the shaft support portions 75 and is fixed to the shaft member main body 42.

As shown in FIG. 9 in particular, each shaft member 36 includes a substantially rectangular shaft member main body 42, a shaft support portion 75 integrally provided on each side surface of one end portion of the shaft member main body 42, and each shaft support. Shaft portions 38 integrally provided on each side surface of the portion 75, and the upper blade 3 is overlapped with the lower blade 3 in the vertical direction in the two adjacent blades 3 in the vertical direction. The upper surface 77 of the shaft support part 75 of the shaft member 36 related to the lower blade 3 is in contact with the lower end surface 76 having the arc surface of the shaft support part 75 of the shaft member 36 related to the upper blade 3. As a result of the shaft member main body 42 of the shaft member 36 related to the lower blade 3 coming into contact with the upper surface 57 of the support member 23 related to the lower blade 3, the shaft member related to the upper blade 3 is arranged obliquely. The main body 42 is inclined toward the central portion 26 of the support member 23 of the upper blade 3. In other words, it is inclined so as to gradually become higher toward the central portion 26 of the support member 23 which is the lateral edge portion of the lower blade 3 so as to rotate in the R2 direction around the shaft portion 38. cage, the shaft portion 38, removably inserted against the receiving hole 39 together is fitted in the snap foot expression through the notch 40 into the receiving hole 39 is closed by the outer surface (surface) 41 of the blade 3 Thus, each of the blades 3 is detachable from the link mechanism 4.

  The ascending / descending mechanism 5 is in contact with the lowermost blade 3 to receive the blade 3 and is parallel to the blade 3 and extends in the horizontal direction in the same manner as the blade 3. A turning pulley 84 rotatably mounted on the mounting member 82 via a shaft member 83, and a through hole 45 at the lateral edge of each blade 3 while being connected to the lower surface of the cradle 81 at one end 80. , And a traveling means 85 that travels the strip 44 in the A direction and the B direction in synchronization with the tilting operation of the tilting mechanism 6.

  The traveling means 85 includes a pulley 86 around which the belt-like body 44 is wound, and a rotational power source 88 having a rotational shaft 87 that generates rotational power for rotating the pulley 86 and rotates with the generated rotational power. Yes.

  The belt-like body 44 wound around the pulley 86 on the other end side hangs vertically via a turning pulley 84 disposed between the cradle 81 and the pulley 86, and the pulley 86 is rotated by the rotation shaft 87. It is fixed to the rotating shaft 87 so as to rotate together.

  The rotary power source 88 is activated and deactivated by an operation switch mechanism provided elsewhere, and is also deactivated by a detection result from a detector that detects the highest and lowest positions of the cradle 81. And a reduction gear mechanism 92 that transmits the rotation of the output rotation shaft of the electric motor 91 to the rotation shaft 87. The electric motor 91 and the reduction gear mechanism 92 are attached to the upper horizontal frame 93 of the window frame 10. The rotation power source 88 is shared with the rotation means 95 of the tilting mechanism 6 and is added to the rotation of the pulley 86 by the rotation of the rotation shaft 87 thereof. Thus, the rotatable arm member 96 is rotated in the r direction to cause the tilting mechanism 6 to tilt.

  The ascending / descending mechanism 5 rotates the pulley 86 by the rotation of the rotating shaft 87 by the operation of the electric motor 91, winds the belt-like body 44 around the pulley 86 and travels in the direction A, and feeds the belt-like body 44 from the pulley 86. While traveling in the B direction, the cradle 81 is raised and raised from the lowest blade 3 in the A direction, and finally all the blades 3 are stacked and bundled as shown in FIG. 81 is lowered and lowered from the lowest blade 3 in the B direction, and the blade 3 tilted as shown in FIG.

  As shown in FIGS. 2, 3, and 4, the tilt mechanism 6 is connected to the upper end portion 101 of the belt-like body 73 of the front edge link member 71 via the pin member 103 at the front edge portion 102 and the rear. A swingable member 107 connected to the upper end portion 104 of the belt-like body 73 of the edge link member 72 via a pin member 106 at the rear edge portion 105, and a shaft member that is rotatably supported by the mounting member 82 in the r direction. 108, a rotatable arm member 96 fixed to an intermediate portion 110 between the front edge portion 102 and the rear edge portion 105 of the swingable member 107 through the shaft member 108 at one end 109, and a rotatable arm member Rotating means 95 for rotating 96 in the r direction.

  The rotating means 95 includes a connecting arm member 124 that is rotatably connected to the other end 123 of the rotatable arm member 96 via a shaft member 122 at one end 121 and a connecting arm that is rotatable at one end 125. The connecting pin member 127 rotatably connected to the other end 126 of the member 124 and the other end 128 of the connecting pin member 127 are rotatably connected and the connecting arm member 124 is connected via the connecting pin member 127. An annular rotating body 129 rotatably connected to the other end 126, a rotating mechanism 130 for rotating the rotating body 129, and a blocking mechanism 131 for preventing the rotating body 129 from rotating beyond a certain level are provided.

  The rotating body 129 is concentric with the pulley 86 and is rotatably disposed in the annular recess 134 of the pulley 86. The rotating body 129 is in sliding contact with the central shaft portion 111 of the pulley 86 with which the rotating shaft 87 is fitted, and thus the central shaft portion. An annular portion 112 rotatably attached to 111, and a semi-cylindrical portion 114 formed integrally with the annular portion 112 and having an arc-shaped notch 113, and a rotation mechanism 130. Includes a rotary power source 88 having a rotary shaft 87 that rotates with the generated rotary power and a transmission mechanism 135 that transmits the rotation of the rotary shaft 87 of the rotary power source 88 to the rotating body 129. It is equipped with.

  The rotational power source 88 is shared with the traveling means 85 of the ascending / descending mechanism 5, and includes an electric motor 91 and a reduction gear mechanism 92 that transmits the rotation of the output rotating shaft of the electric motor 91 to the rotating shaft 87. The rotating body 129 is rotated by the rotation of the rotating shaft 87 via the transmission mechanism 135.

  The blocking mechanism 131 has an arcuate guide hole 136 through which the connecting pin member 127 passes, and also has a fixing plate 139 attached to the side plate 137 of the housing 94 via a support column 138, and the connecting pin member 127. Further rotation of the rotating body 129 is prevented and prohibited by contact with the fixed plate 139 at each end 140 and 141 (see FIG. 10) of the guide hole 136.

  As shown in FIG. 4, in particular, the transmission mechanism 135 has one end 115 arranged on one end surface 116 side of the semi-cylindrical portion 114 defining one end of the notch 113 and the other end 117 of the notch 113. An idling mechanism 142 comprising a coil spring 119 is disposed on the other end face 118 side of the semi-cylindrical portion 114 defining the other end, and is wound around the central shaft portion 111 of the pulley 86 in frictional contact. When the pulley 86 rotates in the direction in which the belt-like body 44 is fed out, the idling mechanism 142 is rotated in the same direction by the coil spring 119 wound in contact with the central shaft portion 111 of the pulley 86 in the same direction. One end portion 115 of 119 is brought into contact with the end surface 116 of the semi-cylindrical portion 114, and the semi-cylindrical portion 114 is rotated in the same direction as the coil spring 119 is fastened to the central shaft portion 111. When the pulley 86 rotates in the direction in which the belt-shaped body 44 is wound, the other end portion of the coil spring 119 is rotated in the same direction of the coil spring 119 wound in contact with the central shaft portion 111 of the pulley 86. While 117 is brought into contact with the end surface 118 of the semi-cylindrical part 114 and the coil spring 119 is fastened to the central shaft part 111, the semi-cylindrical part 114 is also rotated in the same direction to transmit the rotation of the rotary shaft 87 to the rotating body 129. When the rotational load of the rotating body 129 increases due to the contact of the connecting pin member 127 with the fixing plate 139 at the end portions 140 and 141 of the guide hole 136, the central shaft portion 111 of the pulley 86 and the coil spring that are in frictional contact with each other 119 is caused to slip, and the pulley 86 is slid to the rotating body 129 via the coil spring 119 so as to be idled. It is provided with a sliding mechanism to idle with respect to rotary body 129.

  For example, as shown in FIG. 1, the tilting mechanism 6 operates the electric motor 91 in a state where all the blades 3 are overlapped and bundled upward to rotate the rotating shaft 87, and the rotation of the rotating shaft 87 causes the pulley 86 to rotate. The rotating body 129 is rotated through a coil spring 119 that rotates and frictionally contacts the pulley 86, and the rotating arm 129 rotates the connecting arm member 124 through the connecting pin member 127 as shown in FIG. The swingable member 107 is swung in the r direction via the rotatable arm member 96 by the rotation of the arm member 124, thereby lifting and raising the trailing edge link member 72 relative to the leading edge link member 71, while the leading edge The link member 71 is lowered with respect to the trailing edge link member 72, and the cradle 8 is based on the travel of the strip 44 in the B direction by synchronous feeding from the pulley 86 of the strip 44. As shown in FIG. 11, the upper blades 3, which are successively released from each other as they descend, are tilted in the R <b> 1 direction, and the connection pin member 127 contacts the fixing plate 139 at the end 141 of the guide hole 136 as shown in FIG. 11. After causing the blade 3 to tilt in the R1 direction, the swing of the swingable member 107 is stopped by idling of the rotating shaft 87 with respect to the rotating body 129, and the swing of the swingable member 107 is stopped. The link mechanism 4 in which the trailing edge link member 72 is lifted with respect to the leading edge link member 71 by the tilting mechanism 6 as a result of the operation of the electric motor 91 being continued and the belt body 44 being continuously fed out from the pulley 86. As a result, tilting occurs in the lower blades 3 that are released one after another, and all the blades 3 that are released from overlapping are tilted and arranged over the entire window 2 as shown in FIG.

  In addition, when the electric motor 91 is operated in the reverse direction with the blades 3 being tilted as shown in FIG. 11, the tilting mechanism 6 undergoes reverse rotation of the connecting arm member 124 as shown in FIG. The leading edge link member 71 is lifted with respect to the trailing edge link member 72 by the reverse swinging of the swingable member 107, while the trailing edge link member 72 is lowered with respect to the leading edge link member 71, and the blade 3 is moved to R1. The blades 3 are higher than the lower blades 3 that are superimposed one after another as the cradle 81 rises due to the movement of the belt-like body 44 in the direction A by the winding of the belt-like body 44 into the pulley 86. 2 to cause the blade 3 to release the tilt as shown in FIG. 2 by the contact of the connecting pin member 127 with the fixing plate 139 at the end 140 of the guide hole 136, and then the rotation of the rotary shaft 87. Against body 129 The swing of the swingable member 107 is stopped by idling, and even after the swing of the swingable member 107 is stopped, the winding of the belt-shaped body 44 onto the pulley 86 is continued by the operation of the electric motor 91. As a result, as shown in FIG. 1, the blades 3 are arranged above the window 2 in a state where all are overlapped and bundled upward.

  The holding means 7 penetrates the through hole 61 of the string-like body holder 27, which is the lateral edge of the blade 3, and the lateral edge of the cradle 81 so as to be relatively movable, and has one end via the fixture 145. And the other end is fixed to a building floor 147 via a fixture 146 and has a wire 65 as a holding string-like body extending in the vertical direction.

  In the blind device 1, except for the electric motor 91 and the reduction gear mechanism 92, the support member 23, the string-like body holder 27, the coupling mechanism 28, the link mechanism 4, the ascending / descending mechanism 5, the tilting mechanism 6, the retaining means 7, etc. A similar one is also provided on the other lateral edge portion 148 side of the blade body 21, and the rotating shaft 87 provides rotational power to the ascending / descending mechanism and tilting mechanism on the other lateral edge portion 148 side of the blade body 21. The blade body 21 extends to the other side edge portion 148 side of the blade body 21, and thus the ascending / descending mechanism and the tilting mechanism on the other side edge portion 148 side of the blade body 21 are arranged on one side of the blade body 21. It operates in synchronization with the ascending / descending mechanism 5 and the tilting mechanism 6 on the side edge 22 side.

  In the above blind device 1, since the swingable member 107 is connected to the rotation means 95 via the rotatable arm member 96, the rotation means 95 can be disposed on the side of the swingable member 107, Thus, the plurality of bundled blades 3 positioned below the swingable member 107 can be arranged on the ceiling side as much as possible, and sufficient lighting can be obtained without obstructing the view from the window 2. When the upper blade 3 is overlapped with the lower blade 3 in the vertical direction in the two blades 3 adjacent to each other in the direction, the lower side where the lower end surface 76 of the shaft support portion 75 related to the upper blade 3 comes into contact In order to incline so that the upper surface 77 of the shaft support part 75 which concerns on the blade | wing 3 may become high gradually toward the center part of the horizontal edge part of the lower blade | wing 3, the strip | belt-shaped body 73 was piled up regarding the up-down direction. Two feathers 3 As a result of specifying the rotation direction of the shaft support portion 75 in the R2 direction so that it can be disposed between them, the drooping of the belt-like body 73 from between the blades 3 to the outside can be eliminated, and the shaft member 36 can be excellent in appearance. Since the shaft portion 38 of the shaft can be inserted into and removed from the receiving hole 39 through the notch 40, the blade 3 can be easily removed from the link mechanism 4, and the blade 3 is again attached after the removal. As a result, it is excellent in assembling and disassembling, can reduce the manufacturing cost, can be easily cleaned, and the blade body 21 and the support member 23 are detachable via the coupling mechanism 28. Therefore, the long blade main body 21 and the support member 23 can be easily assembled and disassembled. Thus, the assembling and disassembling performance can be excellent, the manufacturing cost can be reduced, and the cleaning can be easily performed.

  Further, in the blind device 1 described above, even when the blade 3 is tilted to the maximum by the tilting mechanism 6 between the inner peripheral surface 51 and the inclined surface 54 of the blade 3 that defines the through-hole 45, the belt-shaped body 44 tends to be bent. Therefore, the belt-like body 44 can be maintained straight without being affected by the tilting of the blades 3, and the belt-like body 44 can be maintained. The blades 3 can be tilted and moved up and down without being obstructed by the movement, and since the holding means 7 is provided, it is possible to hold the plurality of blades 3 hanging from the window so as not to be shaken by wind or the like. In addition to preventing accidents and the like, the life of the product can be improved, and the wire 65 is passed through the through hole 61 of the string-like body holder 27 that is rotatably fitted in the hole 46. On capable of maintaining 65 to a state where straight extended without being influenced by the tilt of the blade 3, the blade 3 tilt, it is possible to lift the without being obstructed by the wire 65.

  In addition, since the blind device 1 is provided with the blocking mechanism 131, the plurality of blades 3 can be disposed in the normal position even if the rotational power source 88 malfunctions, and the window 2 can be completely opened and closed. Can be obtained.

  In the blind device 1 described above, in the rotating means 95 of the tilting mechanism 6, the rotatable arm member 96 is rotated via the connecting arm member 124. Instead, as shown in FIGS. In addition, the rotatable arm member 96 may be rotated via the linearly movable member 151. That is, in such a case, the rotating means 95 is movably connected to the other end portion 123 of the rotatable arm member 96 through the long hole 153 and the shaft member 122 at one end portion 152 and directly in the C and D directions. A linearly movable member 151 that is movable, a rotation-linear motion converting mechanism 154 that linearly moves the linearly movable member 151 based on the input rotation, and a C or D direction of the linearly movable member 151 that is greater than a certain level. A rotary power source 88 (see FIG. 1) having a blocking mechanism 155 for blocking linear motion, a rotary shaft 87 that generates rotary power and rotates with the generated rotary power, and a rotary shaft of the rotary power source 88 And a transmission mechanism 135 that transmits the rotation 87 to the rotation-linear motion conversion mechanism 154.

  The linearly movable member 151 has an elongated portion 162 having two guide holes 161 extending in the linearly moving direction, and an elongated hole 153 that is integrally formed with the elongated portion 162 and in which the shaft member 122 is disposed. 152, and is guided by a fixed pin member 165 disposed in each guide hole 161 so as to be directly movable in the C and D directions.

  The rotation / linear motion conversion mechanism 154 is rotated by rotation input from the transmission mechanism 135 and is rotatably disposed in the annular recess 134 of the pulley 86, and is fixed to the rotation body 170. An annular gear 171, a gear 174 that meshes with the gear 171 and is rotatably supported by the fixed plate 173 via the shaft member 172, and is rotated while being decelerated with respect to the rotation of the gear 171 and is linearly movable. And a gear 176 that meshes with the rack teeth 175 of the member 151.

  The rotating body 170 and the gear 171 fixed to the rotating body 170 are arranged concentrically with the rotating shaft 87. The rotating body 170 is similar to the rotating body 129, is concentric with the pulley 86, and is connected to the pulley 86. An annular portion 112 that is rotatably disposed in the annular recess 134 and that is slidably contacted with the central shaft portion 111 of the pulley 86 with which the rotational shaft 87 is fitted, and is rotatably attached to the central shaft portion 111; The gear 171 fixed to the rotating body 170 includes a pulley 86 and a semi-cylindrical portion 114 formed integrally with the annular portion 112 and having an arc-shaped notch 113 (see FIG. 4). The shaft member 172 is rotatably supported by a fixed plate 173 attached to the side plate 137 of the housing 94 via a support column 138, and is arranged concentrically with the gear 174. Is Gear 176 is fixed to the shaft member 172 together with the gear 174.

  The blocking mechanism 155 includes a fixed plate 173 and two fixed pin members 165 that pass through the guide holes 161 of the linearly movable member 151 and are fixed to the fixed plate 173, and each end of the guide hole 161. In order to prevent and prevent further linear movement of the linearly movable member 151 in the C and D directions by contacting the fixed pin member 165 of the linearly movable member 151 at the portions 180 and 181 (see FIG. 15). It has become.

  The transmission mechanism 135 rotates when the linear motion load in the C and D directions of the linear movable member 151 is increased by the contact of the linear movable member 151 with the fixed pin member 165 at the end portions 180 and 181 of the guide hole 161. An idling mechanism 142 including a coil spring 119 for idly rotating the rotating shaft 87 of the power source 88 with respect to the rotating body 170 of the rotation-linear motion conversion mechanism 154 is provided. When the rotation of the pulley 86 occurs, the other end 117 of the coil spring 119 is brought into contact with the end surface 118 of the semi-cylindrical portion 114 by the rotation in the same direction of the coil spring 119 wound in contact with the central shaft portion 111 of the pulley 86. When the semi-cylindrical portion 114 is rotated in the same direction by being brought into contact, and the pulley 86 is rotated in the direction in which the belt-like body 44 is wound, the central shaft portion 111 of the pulley 86 is generated. By rotating the coil spring 119 wound in frictional contact in the same direction, the one end 115 of the coil spring 119 is brought into contact with the end surface 116 of the semi-cylindrical portion 114 and the semi-cylindrical portion 114 is also rotated in the same direction to rotate the rotating shaft. While the rotation of 87 is transmitted to the rotating body 129, the linear motion load of the linear motion member 151 in the C and D directions by the contact of the linear motion member 151 with the fixed pin member 165 at the end portions 180 and 181 of the guide hole 161. Is raised between the central shaft portion 111 of the pulley 86 and the coil spring 119 which are in frictional contact with each other, and the pulley 86 is slid with respect to the rotating body 170 via the coil spring 119 so as to idle. Thus, there is a sliding mechanism that idles the rotating shaft 87 with respect to the rotating body 170 (see FIG. 4).

  In the blind device 1 shown in FIGS. 13 and 14, the ascending / descending mechanism 5 rotates on the attachment member 82 via the shaft member 185 in addition to the cradle 81, the turning pulley 84, the strip 44, and the traveling means 85. A turning pulley 186 that is freely mounted is further provided, and the belt-like body 44 is wound around the pulley 86 in the opposite direction to the above via the turning pulley 186.

  In the blind device 1 shown in FIGS. 13 and 14, the tilting mechanism 6 operates the electric motor 91 in a state where all the blades 3 are overlapped and bundled upward as shown in FIG. The rotating body 170 is rotated by rotating the rotating shaft 87 and the rotating body 170 is rotated through the coil spring 119 which is in frictional contact with the pulley 86, and the rotating body 170 is directly rotated through the gears 171, 174 and 176. The movable member 151 is moved in the D direction, and the swingable member 107 is swung in the r direction via the rotatable arm member 96 by the movement of the linearly movable member 151 in the D direction, and as shown in FIG. The trailing edge link member 72 is lifted with respect to the leading edge link member 71 while the leading edge link member 71 is lowered with respect to the trailing edge link member 72 to remove the belt 44 from the pulley 86. After the cradle 81 is lowered based on traveling in the B direction of the belt-like body 44 due to periodic feeding, the upper blades 3 that are released one after another are tilted in the R1 direction, and then the end of the guide hole 161 In 181, the linearly movable member 151 comes into contact with the fixed pin member 165, causing the rotating shaft 87 to idle with respect to the rotating body 170 to stop the swinging of the swingable member 107. Even after the stop of the swinging of 107, the operation of the electric motor 91 continues to feed the belt-like body 44 from the pulley 86. As a result, the tilting mechanism 6 lifts the trailing edge link member 72 relative to the leading edge link member 71. As shown in FIG. 15, all the blades 3 released from overlapping are tilted to tilt the entire window 2 as shown in FIG. On the other hand, as shown in FIG. 15, when the electric motor 91 is operated in the reverse state with all the blades 3 being tilted, the swingable member 107 via the movement of the linearly movable member 151 in the C direction. The leading edge link member 71 is lifted with respect to the trailing edge link member 72 by the reverse swinging of the above, while the trailing edge link member 72 is lowered with respect to the leading edge link member 71 so that the belt-shaped body 44 is wound on the pulley 86. As the cradle 81 rises due to the travel of the strip 44 in the A direction, a reverse tilt is generated in the upper blade 3 over the lower blade 3 that are successively superimposed, and the straight portion at the end 180 of the guide hole 161 is increased. When the movable member 151 comes into contact with the fixed pin member 165, the rotation of the rotary shaft 87 with respect to the rotating body 170 is caused to stop the linear movement of the linear movable member 151. Movement As a result of continuing the winding of the belt-like body 44 to the pulley 86 by the operation of the electric motor 91 even after stopping, the blades 3 of the window 2 remain in a state where all are overlapped and bundled upward as shown in FIG. Arranged above.

  The blind device 1 shown in FIGS. 13 and 14 can achieve the above-described effects, and the gear 176 is rotated at a reduced speed with respect to the rotation of the gear 171 in the rotation-linear motion conversion mechanism 154. Therefore, the blade 3 can be raised and lowered at a low speed, and the opening of the window 2 by the blade 3 and the tilt angle of the blade 3 can be accurately set.

  By the way, in the holding means 7 of the blind device 1 described above, the wire 65 is passed through the through hole 61 of the string-like body holder 27, but without using the string-like body holder 27, the front edge of the support member 23 is used. A through hole 47 provided in the central portion 26 between the portion 24 and the rear edge portion 25 may be used as a holding through hole. In this case, as shown in FIG. 16, the holding through-hole 47 extends toward the rear edge 25 of the support member 23 that is the rear edge of the blade 3 and is a support member that is the outer surface on the upper side of the blade 3. One inclined surface 191 of the support member 23 that is one inclined surface of the blade 3 that terminates at the outer surface 41 on the upper side of the blade 23, and the front edge 24 of the support member 23 that is the front edge of the blade 3. The other inclined surface 192 of the support member 23 that is the other inclined surface of the blade 3 that extends and terminates at the lower outer surface 56 of the support member 23 that is the lower outer surface of the blade 3, and is connected to the inclined surface 191. One of the flat surfaces 193 of the support member 23, which is one of the flat surfaces of the blade 3 that terminates at the outer surface 56, and the blade 3 that is connected to the inclined surface 192 and terminates at the outer surface 41. With the other flat surface 194 of the support member 23 which is the other flat surface The one flat surface 193 and the other flat surface 194 are parallel to each other and can maintain the ease of movement of the support member 23 in the A and B directions with respect to the wire 65, and the support member by the wire 65 23, the inclined surfaces 191 and 192 and the flat surfaces 193 and 194 defining the through-hole 47 are arranged with a distance d or a diameter that is substantially the same as the width or diameter of the wire 65 to the extent that the retainability of the wire 23 can be maintained. Even when the blade 3 is tilted to the maximum by the tilting mechanism 6, the wire 65 is arranged so as to extend straight without being bent as shown in FIG.

DESCRIPTION OF SYMBOLS 1 Blind device 2 Window 3 Blade | wing 4 Link mechanism 5 Ascending / descending mechanism 6 Tilt mechanism 7 Holding means 71 Front edge link member 72 Rear edge link member 73 Strip body 95 Rotating means 96 Rotating arm member 107 Oscillating member

Claims (15)

A plurality of blades juxtaposed to each other, a link mechanism that interconnects the plurality of blades, a raising / lowering mechanism that raises the lowest blade of the plurality of blades and lowers the lowest blade; And a tilting mechanism that tilts the plurality of blades in synchronization with the raising and lowering of the blades. The link mechanism includes a front edge link member connected to the front edge of the plurality of blades, A trailing edge link member connected to the edge portion, and the tilting mechanism is connected to the upper end portion of the front edge link member at the front edge portion and at the rear edge portion to the upper end portion of the rear edge link member. A swingable member that is connected, a rotatable arm member that is fixed at one end to an intermediate portion between the front edge portion and the rear edge portion of the swingable member, and a rotation that rotates the rotatable arm member And a leading edge link member and a trailing edge phosphorus Each member s is provided the shaft member body, the shaft member having a shaft portion integrally provided on the side surface of the shaft support portion provided integrally with and the respective shaft support portions on each side of the shaft member body One leading edge link member and one trailing edge link corresponding to the one blade in order to interconnect one blade and the other blade adjacent above the one blade. One shaft member of the member is adjacent to the one leading edge link member and the one trailing edge link member and is adjacent to the other leading edge link member and the other leading edge link member. The one trailing edge link member is connected to another shaft member, and the one blade and the other blade adjacent to the one blade are connected to each other in order to interconnect the one blade. One front edge link member corresponding to a blade and one shaft member of one rear edge link member are connected to the one front edge link member. Yet another leading edge link member and a further other trailing edge link member, which are adjacent to the lower member and the trailing edge link member and correspond to the other vane. is connected to one of the shaft member, the blade, in order to support the blade to the link mechanism, the receiving hole and the receiving bore is closed by the surface of the blade while rotatably receiving the shaft portion of the shaft member A blind device having a notch communicating with the shaft member, the shaft portion of the shaft member being freely inserted into and removed from the receiving hole through the notch.   The blade includes a long blade body, a support member that supports a lateral edge portion of the blade body, and a connecting mechanism that connects the support member to the lateral edge portion of the blade body. A plate portion that overlaps with the horizontal edge portion of the main body, a front edge gripping portion that is provided integrally with this plate portion and that grips the front edge portion of the horizontal edge portion of the blade body, and is provided integrally with the plate portion. And a trailing edge gripping part for gripping the trailing edge of the lateral edge of the blade body, and the coupling mechanism includes a recess provided integrally with one of the blade body and the support member, 2. The blind device according to claim 1, wherein the blind device includes a protrusion provided on the other of the blade body and the support member while being fitted in the recess.   The ascending / descending mechanism is a pedestal that comes into contact with the lowermost blade and receives the blade, and is connected to the cradle at one end and a string for raising and lowering that penetrates the lateral edge of each blade. And a traveling means for traveling the string-like body in synchronization with the tilting operation of the tilting mechanism, and the traveling means includes a pulley that entrains the string-like body for raising and lowering and a rotational power that rotates the pulley. A rotating power source having a rotating shaft that rotates with the generated rotating power.The rotating power source is shared with the rotating means, and rotates the rotating shaft to rotate the pulley. In addition, the blind device according to claim 1 or 2, wherein rotation of the rotatable arm member is caused.   The blind according to claim 3, wherein the ascending / descending mechanism further includes a turning pulley between the cradle and the pulley, and the elevating string-like body hangs vertically through the turning pulley. apparatus.   The blade has a through-hole through which the string-like body for lifting and lowering penetrates at the lateral edge portion, and the through-hole has a shape corresponding to the cross-sectional shape of the string-like body for lifting and lowering and the inner peripheral surface of the blade And an enlarged hole communicating with the central hole. The enlarged hole extends from one edge of the inner peripheral surface of the blade defining the central hole toward the trailing edge of the blade. The blind device according to claim 3 or 4, wherein the other edge of the inner peripheral surface of the blade defining the central hole is terminated by an outer surface on the lower side of the blade.   The ascending / descending string-like body is formed of a flat flexible belt-like body, the center hole has a rectangular shape corresponding to the rectangular cross-sectional shape of the belt-like body, and the blade inclined surface is a flat surface. The blind device according to claim 5, wherein the blind device extends toward the rear edge of the blade and terminates at the upper outer surface of the blade.   The inner peripheral surface and the inclined surface of the blade defining the through-hole extend straight even if the blade is tilted to the maximum by the tilting mechanism without being bent in the through-hole. The blind device according to claim 5 or 6, which is arranged.   The blind device according to any one of claims 1 to 7, further comprising holding means for holding the blade so as to prevent the blade from swinging in a horizontal plane.   9. The blind device according to claim 8, wherein the holding means includes a holding string-like body that penetrates the lateral edge of the blade and is fixed at both ends and extends in the vertical direction.   The blade has a holding through-hole through which the holding string-like body penetrates at the lateral edge portion, and the holding through-hole extends toward the rear edge portion of the blade and is an outer surface on the upper side of the blade. 10. The blade according to claim 9, wherein the blade is defined by one inclined surface of the blade that terminates at the leading edge of the blade and the other inclined surface of the blade that extends toward the leading edge of the blade and terminates at the outer surface of the lower surface of the blade. The blind device described.   The holding through-hole is connected to one inclined surface of the blade and is connected to one flat surface of the blade that terminates on the outer surface of the lower side of the blade and the other inclined surface of the blade. And the other flat surface of the blade terminating at the upper outer surface of the blade, the one flat surface and the other flat surface being parallel to each other and the width of the holding string The blind device according to claim 10, which is arranged with substantially the same interval.   One and the other inclined surfaces of the blades defining the holding through-hole do not cause the holding string-like body to be bent in the holding through-hole even when the blade is tilted to the maximum by the tilting mechanism. The blind device according to claim 10 or 11, which is arranged so as to extend straight.   The blade includes a long blade body and a support member that supports a lateral edge portion of the blade body, and the holding through hole is provided between the front edge portion and the rear edge portion of the support member. The blind apparatus as described in any one of Claim 10 to 12 provided in the center part.   The blade has a long blade body, a support member that supports a lateral edge portion of the blade body, and a string-like body that is fitted to a central portion between the front edge portion and the rear edge portion of the support member. The blind device according to any one of claims 10 to 13, further comprising a holder, wherein the through hole for holding is provided in the string-like body holder.   The blind device according to any one of claims 9 to 14, wherein the string for holding is made of a steel wire.

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