JP5966799B2 - 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.

  For example, in Patent Document 1, a plurality of slats juxtaposed in the vertical direction, a link mechanism that interconnects end portions in the lateral direction of the plurality of slats, and a lowermost slat among the plurality of slats. There has been proposed a blind device including an elevating mechanism and a tilt mechanism for tilting a plurality of slats based on the elevating and lowering of the slats by the elevating mechanism.

JP 2007-239309 A

  By the way, in the conventional blind device described above, when the slat is tilted horizontally for ventilation with the opening closed, the mechanical strength of the slat itself is not sufficient. Even if it is desired to be tilted horizontally, it cannot be done, and it is necessary to make the slats closed vertically by tilting the slats vertically. In such a blind device, a plurality of slats are lowered by a lifting mechanism. In order to maintain the opening closed state in which the slats are tilted vertically by the tilt mechanism and the openings are closed, it is desired to appropriately fix the plurality of slats. In some cases, such a fixing is desired to obtain an open closed state even when the slat is tilted substantially horizontally for ventilation with the opening closed.

  The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a blind device capable of appropriately fixing a plurality of slats and maintaining an open closed state. There is.

  A blind device according to the present invention connects a frame, a plurality of slats juxtaposed in an up-down direction to an opening surrounded by the frame, and end portions in the lateral direction of the plurality of slats in the up-down direction. An end link mechanism, an elevating mechanism that raises and lowers the plurality of slats by raising and lowering the lowest slat among the plurality of slats, and an upper end of the end link mechanism. And a tilt mechanism that tilts the plurality of slats when the plurality of slats are lifted and lowered by the lifting mechanism, and a slat fixing mechanism that fixes the positions of the plurality of slats when the openings are closed by the plurality of slats. The slat fixing mechanism is provided in the lowest slat of the plurality of slats, and the slat is fixed by the tilt mechanism. At least one oscillating pin that oscillates in motion, and at least one locking surface that is provided on the frame and that locks the oscillating pin so as to inhibit the upward movement of the oscillating pin when the opening is closed It is equipped with.

  According to the blind device of the present invention, in particular, the slat fixing mechanism that fixes the positions of the plurality of slats when the openings are closed by the plurality of slats is provided, and the slat fixing mechanism is the lowest of the plurality of slats. And at least one swing pin that swings when the slat is tilted by the tilt mechanism, and the swing pin that is provided on the frame and prohibits the upward movement of the swing pin when the opening is closed. Since at least one locking surface for locking the swing pin is provided, the lowermost slat and the plurality of slats connected thereto are locked by locking the swing pin to the locking surface when the opening is closed. The upward movement of each of the slats can be prohibited, thereby reducing the risk that the openings closed by the plurality of slats will be opened unexpectedly, And, to be able to properly secure the slats, it can be maintained open closed.

  In the blind device of the present invention, the frame includes a pair of vertical frames juxtaposed with each other with a plurality of slats in the horizontal direction, and the locking surface is at least one vertical frame of the pair of vertical frames. The locking surface may be a surface defining a long hole or slit provided in a vertical frame extending along the swinging direction of the swing pin.

  In the blind device of the present invention, the frame body is arranged to extend in the horizontal direction by bridging a pair of vertical frames juxtaposed with each other with a plurality of slats in the horizontal direction, and a lower portion of the pair of vertical frames. The locking surface may be formed in the locking member which protruded upwards from the lower frame.

  In the blind device of the present invention, the frame body is arranged to extend in the horizontal direction by bridging a pair of vertical frames juxtaposed with each other with a plurality of slats in the horizontal direction, and a lower portion of the pair of vertical frames. The slat fixing mechanism includes a plurality of oscillating pins and a plurality of engaging surfaces corresponding to the plurality of oscillating pins, respectively. At least one locking surface is provided on the vertical frame, and at least one other locking surface of the plurality of locking surfaces is formed on a locking member protruding upward from the lower frame. Also good.

  The locking member described above has a flange at its protruding end, and the locking surface may be formed on the flange, and the hook of the locking member is the tilting shaft of the lowest slat. It may be arranged behind the heart.

  In the blind device of the present invention, the swing pin may be provided away from the tilt axis of the lowest slat.

  The blind device of the present invention may further include a rigid shaft member that extends in the lateral direction on the lowest slat. In such a case, the lowermost slat can be prevented from bending, and the locking state between the swing pin and the locking surface can be appropriately maintained.

  The blind device of the present invention may further include a rigid shaft member that extends laterally on the plurality of slats. Such a rigid shaft member may include a rigid shaft member that extends laterally to the lowest slat described above. In this case, there may be further provided a rigid link mechanism for connecting the rigid shaft members respectively disposed in the plurality of slats in the vertical direction at intermediate positions in the lateral direction of the plurality of slats. The rigid shaft member described above may be disposed at the front end edge or the rear end edge of the slat.

  The above-described rigid link mechanism includes a plurality of a pair of rigid link members that are rotatably connected to each other at one end via a shaft member and a plurality of members that are rotatably connected to each other via a shaft member. Each of the pair of rigid link members includes a bent portion formed on one of the plurality of pairs of rigid link members to determine the folding direction of each of the pair of rigid link members. The other end may be rotatably connected to the rigid shaft member.

  According to the blind device of the present invention further including the above-described rigid shaft member and the rigid link mechanism, it is possible to prevent the plurality of slats from being bent, and the slats are caused by the slats by the wind or when the slats are lowered. It is possible to eliminate fluttering at the central part, and to prevent fluttering at the central part of the slats, and to maintain the distance between the central parts of adjacent slats without being expanded by an external force. .

  According to the present invention, it is possible to appropriately fix a plurality of slats and maintain the opening closed state, and in some cases, the slats are tilted substantially horizontally for ventilation with the opening closed. It is possible to provide a blind device that can obtain an open closed state even in a closed state.

FIG. 1 is an explanatory front view of an example of an embodiment of the present invention. FIG. 2 is a partial perspective explanatory view of the example shown in FIG. FIG. 3 is an explanatory cross-sectional view of the example shown in FIG. FIG. 4 is another cross-sectional explanatory diagram of the example shown in FIG. FIG. 5 is a partial explanatory diagram of the example shown in FIG. FIG. 6 is a partial explanatory diagram of the example shown in FIG. FIG. 7 is a cross-sectional operation explanatory diagram of the example shown in FIG. FIG. 8 is a cross-sectional operation explanatory diagram of the example shown in FIG. FIG. 9 is a cross-sectional operation explanatory diagram of the example shown in FIG. FIG. 10 is a cross-sectional operation explanatory diagram of the example shown in FIG. FIG. 11 is an explanatory diagram mainly showing a rigid link mechanism in the example shown in FIG. FIG. 12 is an explanatory diagram mainly showing a tilt mechanism in the example shown in FIG. FIG. 13 is an explanatory diagram mainly showing a tilt mechanism in the example shown in FIG. FIG. 14 is an explanatory diagram mainly showing a tilt mechanism in the example shown in FIG. FIG. 15 is an explanatory diagram of another example of the embodiment of the present invention. FIG. 16 is an explanatory diagram of the example shown in FIG. FIG. 17 is an explanatory front view of still another example of the embodiment of the present invention. (A) and (b) of FIG. 18 are partial operation explanatory views of the example shown in FIG.

  Next, the present invention will be described in more detail based on an example of a preferred embodiment shown in the drawings. The present invention is not limited to these examples.

  1 to 14, the blind device 1 of the present example includes a frame 2 arranged in an opening of a building such as a window and a plurality of juxtaposed in the vertical direction Z with an opening 3 surrounded by the frame 2. The slats 4, the end link mechanism 6 that interconnects the end portions 5 in the lateral direction Y of the plurality of slats 4 in the vertical direction Z, and the lowest slat 4 of the plurality of slats 4. In addition, the lowermost slat 4 is lowered to be moved up and down the plurality of slats 4 and is connected to the upper ends of the end link mechanisms 6, and in the raising and lowering of the plurality of slats 4 by the lifting mechanism 7 A tilt mechanism 8 that tilts the plurality of slats 4, a rigid shaft member 9 that extends in the lateral direction Y of the plurality of slats 4, and the intermediate position of each of the plurality of slats 4 in the lateral direction Y A pair of rigid link mechanisms 10 that interconnect the rigid shaft members 9 respectively disposed in the plurality of slats 4 in the vertical direction Z, and fix the positions of the plurality of slats 4 when the plurality of slats 4 are closed. And a slat fixing mechanism 14.

  The frame 2 includes a vertical frame 11 and a vertical frame 12 that are juxtaposed with each other with a plurality of slats 4 in the horizontal direction, and a cosmetic upper frame that is arranged by bridging the vertical frame 11 and the upper part of the vertical frame 12 (Not shown) and a lower frame 13 that extends in the horizontal direction Y by bridging the lower portions of the vertical frames 11 and 12.

  The vertical frame 11 formed in the same manner as the vertical frame 12 bridges the outer side wall part 15, the inner side wall part 16 arranged facing the outer side wall part 15, and the outer side wall part 15 and the inner side wall part 16. In addition, the front wall portion 17 and the rear wall portion 18 that face each other are integrally formed. A pair of holding grooves 21 and 22 extending in the vertical direction Z are formed in the outer side wall portion 15. In the inner side wall portion 16, a slit 25 extending in the up-down direction Z and a slit 28 defined in a later-described locking surface 27 connected to the slit 25 are formed.

  Each of the slats 4 includes a slat body 31 extending in the lateral direction Y, and a fixture 33 for attaching the end 5 in the longitudinal direction (lateral direction Y) of the slat body 31 to the end link mechanism 6. Each fixture 33 is fixed at one end to the end portion 5 of the corresponding slat main body 31 via a stopper, and the other end protrudes into the vertical frame 11 through the slit 25.

  For example, as shown in FIG. 4, the end link mechanism 6 includes a plurality of front edge link members 51 that are rotatably connected to each other via a shaft member 50 and are foldable. A plurality of trailing edge link members 53 that are rotatably connected and foldable, the uppermost front edge link member 51 and the upper end portion of the rear edge link member 53, and the lowermost front edge link member 51 and the rear edge The uppermost and lowermost lateral members 55 are rotatably connected to the lower ends of the link members 53 via shaft members 54, and every other shaft on the front edge link member 51 side and the rear edge link member 53 side. A plurality of lateral members 55 that are rotatably connected to the members 50 and 52, respectively, and a plurality of front edge link members 51 and a rear edge link member 53 that are rotatably connected to each other via the shaft members 50 and 52, respectively. How to fold To determine the, and a bent portion 56 which is integrally formed on each of every other front edge link members 51 and the rear edge link members 53 s.

  The other ends of the corresponding fittings 33 protruding into the vertical frame 11 through the slits 25 are fixed to the substantially central portions of the horizontal members 55, and the upper ends of the uppermost front edge link members 51 are fixed. The other end of the string-like body 41 of the tilt mechanism 8 is rotatably connected to the shaft member 54, and the string of the tilt mechanism 8 is connected to the shaft member 54 at the upper end of the uppermost rear edge link member 53. The other end of the shaped body 44 is rotatably connected.

  The front edge link members 51 that are rotatably connected to each other by the shaft members 50 that are not connected to the horizontal members 55 are located on the rear wall when the lowermost front edge link member 51 rises. In the same manner, it is folded by being restricted by the bent portion 56 so as to be directed to the portion 18, and similarly, the lateral members 55 are rotatably connected to each other by the shaft members 52 that are not connected, and the trailing edges adjacent to each other The link member 53 is folded by being restricted by the bent portion 56 so that the shaft member 52 faces the front wall portion 17 when the lowermost rear edge link member 53 is raised, and the folded front edge link The members 51 and the trailing edge link member 53 are alternately positioned in the vertical direction Z.

  The elevating mechanism 7 has one end 61 and the other end 62, and a chain 63 having a length as a flexible long body that is held in an inflexible state, and travel that causes the chain 63 to travel in the A and B directions. A mechanism 64 is provided, and one end of the chain 63 is connected to the lowest slat 4 via a slider 65.

  The travel mechanism 64 is fixed to an end portion of the rotary shaft 77 on the side of the vertical frame 11 and a chain 63. A wound sprocket wheel 78 and an electric motor 72 connected to the rotating shaft 77 via a speed reduction mechanism are provided. Around the sprocket wheel 78, a chain presser for suppressing the bending of the portion of the chain 63 wound around the sprocket wheel 78 is disposed. The travel mechanism 64 rotates the output shaft by the operation of the electric motor 72 to rotate the rotation shaft 77 and the sprocket wheel 78 via the speed reduction mechanism, and the rotation causes the chain 63 to travel in the A direction and the B direction. It has become.

  The chain 63 is partially disposed in the holding groove 21 so as to be movable in the A direction and the B direction on the one end 61 side, and is partially movable in the A direction and the B direction on the holding groove 22 on the other end 62 side. The holding grooves 21 and 22 prevent the chain 63 from being bent and are held in an inflexible state.

  The elevating mechanism 7 raises and lowers the lowest slat 4 of the plurality of slats 4 by traveling the chain 63 in the A direction or B direction by the traveling mechanism 64, and thus causes the plurality of slats 4 to move to the lowest slat 4. It is designed to move up and down in advance.

  The tilt mechanism 8 is provided on the rotary shaft 77 so as to be swingable (rotatable) with respect to the rotary shaft 77, and the swingable member 37 having the recess 152 and the protrusion 153, and the chain 63. When the chain 63 is set in the swing prohibition state shown in FIGS. 6 and 12, the projection 154 that fits into the recess 152 in the travel of the chain 63 in the A direction and the recess 155 are set. While the recess 155 engages with the protrusion 153 to prevent the swingable member 37 from swinging (rotating) about the rotation shaft 77, the protrusion 154 moves to the recess 152 as shown in FIGS. 5 and 13. A latch member 156 that is rotated by the projection 154 to release the engagement of the recess 155 with the projection 153 and allows the swingable member 37 to swing, and the latch The member 156 is not allowed to swing. An elastic means 157 for elastically urging the latch member 156 so as to set the state, a suspension plate 38 fixed to the swingable member 37 at the upper part of the vertical frame 11, and a suspension plate 38 at one end. A flexible string such as a wire, a rope, or a band that is rotatably connected to the tip of one arm 39 and is rotatably connected to one end of the uppermost end link mechanism 6 at the other end. At one end, it is rotatably connected to the tip of the other arm portion 42 of the suspension plate 38, and at the other end, it is rotatably connected to the other end of the uppermost end link mechanism 6. And a flexible string-like body 44 such as a wire, a rope, and a band.

  The swingable member 37 is arranged concentrically with the sprocket wheel 78, and the latch member 156 having the claw portion 161 at one end is centered on the support plate 164 via the shaft member 163 at the other end 162. The support plate 164 is attached to the upper end of the vertical frame 11, and the elastic means 157 is locked to the support plate 164 at one end and locked to the latch member 156 at the other end. The latch member 156 includes a torsion coil spring disposed around the shaft member 163, and the latch member 156 is rotated about the shaft member 163 so that the claw portion 161 faces the recess 152. It is elastically biased.

  The tilt mechanism 8 rotates the latch member 156 against the elastic force of the elastic means 157 by fitting the protrusion 154 into the recess 152 as shown in FIG. The engagement with the point 155 is released, and by this release, the swingable member 37 is swung as shown in FIG. 14 along with the movement of the projection 154, and a series of the members is pulled through the string-like body 44 pulled upward by this swinging. The rear edge link members 53 are raised relative to the series of front edge link members 51, while the series of leading edge link members 51 are connected to the series of rear edge link members 53 via the string-like bodies 41 lowered downward. In order to close the opening 3 with each slat 4, the slats 4 are synchronously illustrated through the transverse members 55 connected to the front edge link member 51 and the rear edge link member 53. 7 and shown in FIG. It is adapted to be tilted to a vertical position so, then closed by the slats 4 of the opening 3 at the stop of the operation of the electric motor 72 is adapted to be maintained.

  A rotating shaft 77 extending from the vertical frame 11 to the vertical frame 12 is fixed with a sprocket wheel on the vertical frame 12 side that is configured in the same manner as the sprocket wheel 78, and the blind device 1 has a vertical axis except for the electric motor 72. The frame 12 side is configured similarly to the vertical frame 11 side.

  The rigid shaft member 9 extends in the lateral direction Y at the front end edge 67 or the rear end edge 68 of the plurality of slats 4, in this example, the rear end edge 68. The rigid shaft member 9 may be columnar, cylindrical, or made of stainless steel. An insertion hole 69 extending in the lateral direction Y through which the rigid shaft member 9 is inserted is formed in the rear end edge 68 of the slat body 31. The rear end edge 68 of the insertion hole 69 is wound in an arc shape. It is formed.

  Each of the pair of rigid link mechanisms 10 separated in the lateral direction Y is rotatably connected to each other at one end via a shaft member 80 as shown in FIGS. A pair of rigid link members 81 and 82, and a shaft that is juxtaposed in the lateral direction Y with the plurality of pair of rigid link members 81 and 82 and that is exposed at the notch 83 of the rear end edge 68 of the slat body 31. A pair of rigid link members 84 and 85 that are rotatably connected to each other at one end via a member 80 and are foldable, and a bridging member 88 that bridges the plurality of rigid link members 81 and 84. Each of the plurality of pairs of rigid link members 81 and 82 and the plurality of pairs of rigid link members 84 and 85 that are rotatably coupled to each other via the shaft member 80 is folded. A bending portion 86 formed integrally with the rigid link members 81 and 84 to determine the direction, the other ends of the rigid link members 81 and 82 and the other ends of the rigid link members 84 and 85 are The rigid shaft member 9 is rotatably connected.

  The blind device 1 may further include a suspension plate 91 that suspends the rigid link mechanism 10 via the string-like body 90. The string-like body 90 has flexibility, and may be made of a wire, a rope, a band, or the like. The suspension plate 91 is connected to the suspension plate 38 via a bracket 92 extending in the lateral direction Y, and is rotatably supported on the rotary shaft 77 via a bearing. One end of the string-like body 90 is connected to the suspension plate 91, and the other end of the string-like body 90 is one of the uppermost rigid link members 81 and 84 and the uppermost bridging member 88 of the rigid link mechanism 10. It is connected to at least one of them. The suspension plate 91 is tilted corresponding to the tilt of the suspension plate 38 to raise and lower the rigid link mechanism 10.

  The rigid link members 81 and 82 and the rigid link members 84 and 85 are folded by being restricted by the bending portion 86 so that the shaft member 80 is directed rearward when the lowermost rigid link member 82 is raised. .

  The slat fixing mechanism 14 is provided on the lowermost slat 4 apart from the tilt axis 100 of the lowermost slat 4 and swings when the slat 4 is tilted by the tilt mechanism 8 and a frame. A locking surface 27 is provided on the body 2 and locks the swing pin 29 so as to prohibit the upward movement of the swing pin 29 when the opening is closed.

  The locking surface 27 is a surface that defines a long hole or slit provided in the vertical frames 11 and 12 extending along the swing direction C of the swing pin 29, in this example, the slit 28. A slit (not shown) and a locking surface (not shown) provided in the vertical frame 12 are formed in the same manner as the slit 28 and the locking surface 27 provided in the vertical frame 11. The slit 28 having the front end portion 95 and the rear end portion 96 is connected to the slit 25 at the front end portion 95, and the rear end portion 96 is disposed above the end portion 95. Curved along the swing direction C from 95 to the end 96. In this example, the locking surface 27 is mainly composed of a surface defining the end portion 96 of the slit 28, but may be composed of a surface defining the end portion 95 of the slit 28.

  Two rocking pins 29 (the rocking pins on the vertical frame 12 side are not shown) corresponding to the locking surfaces 27 provided on the vertical frames 11 and 12 side are provided in the lateral direction Y of the lowest slat 4. Is provided at an end portion 5 of the slat 4 so as to be rotatable through a bracket 97, and is slidably disposed in the slit 25 in the vertical direction Z. It is arranged to be moved from the slit 25 to the slit 28 while swinging. When the opening is closed, the swing pin 29 is disposed at the end portion 96 and locked to the locking surface 27, so that upward movement thereof is prohibited.

  Instead of or in addition to the above-described configuration, the slat fixing mechanism 14 is a bracket at an intermediate portion between the end portions 5 of the lowest slat 4 as shown in FIGS. 17 and 18A and 18B, for example. One or a plurality of swing pins 99 provided via 98, and one or a plurality of contacts engaged with the swing pins 99 so as to inhibit the upward movement of the swing pins 99 when the opening is closed. A stop surface 101 may be provided. The swing pin 99 is provided apart from the tilt axis 100, and the locking surface 101 is formed on a locking member 102 protruding upward from the lower frame 13, and the locking member 102 is protruded from the locking pin 102. The end portion 103 has a flange portion 104. The locking surface 101 is formed on the flange portion 104. The collar portion 104 is disposed rearward with respect to the tilt axis 100 of the lowest slat 4. Thus, when the rocking pin 99 and the locking surface 101 are provided, the lowest slat 4 and the slat 4 connected thereto can be more securely fixed at the opening closed position, and the rigid shaft Coupled with the member 9, the fixed state of the plurality of slats 4 can be made stronger.

  In the blind device 1, when the plurality of slats 4 are vertically tilted so as to close the opening 3 as shown in FIGS. 14, the engagement between the protrusion 153 and the recess 155 is released in the recess 152, and the latch member 156 contacts the outer peripheral edge 165 of the swingable member 37. The swingable state is maintained with respect to the swingable member 37. In such a state, when the electric motor 72 is operated and the sprocket wheel 78 is rotated via the rotation shaft 77, and the chain 63 is caused to travel in the B direction by this rotation, the protrusion 154 is also moved along with the travel of the chain 63 in the B direction. The swingable member 37 moves around the rotation shaft 77, and the swingable member 37 rotates in the same direction due to the movement of the protrusion 154. While the uppermost front edge link member 51 and the lower series of front edge link members 51 connected below the uppermost front edge link member 51 are raised relative to the rear edge link member 53, The uppermost rear edge link member 53 and the lower series of rear edge link members 53 connected to the lower side of the uppermost rear edge link member 53 via the string-like body 44 are connected to the series of front edge link members 51. Relatively lowered the outcome, a plurality of slats 4 are being synchronously tilted from Figure 1 in a substantially horizontal state as shown in FIG. Thus, when the plurality of slats 4 are brought into a substantially horizontal state, the swing pin 29 is pulled out of the slit 28 and disposed in the slit 25, and the locking by the locking surface 27 is released. The suspension plate 91 is also rotated in the same direction by the rotation of the suspension plate 38 by the operation of the tilt mechanism 8, so that the rigid link mechanism 10 can be raised and lowered in accordance with the operation of the tilt mechanism 8. The plurality of slats 4 can be smoothly tilted.

  When the chain 63 is further moved in the direction B, the protrusion 154 begins to come out of the recess 152, and the protrusion 154 comes out of the recess 152, so that the latch member 156 is centered on the shaft member 163 by the elastic force of the elastic means 157. As shown in FIG. 12, the protrusion 153 and the recess 155 are engaged with each other, and the rotation of the swingable member 37 is prevented by this engagement. The front edge link member 51 and the rear edge link member 53 below the end link mechanism 6 connected to the one end 61 of the chain 63 as the one end 61 of the chain 63 rises as the travel of the chain 63 in the B direction continues. 9, the plurality of slats 4 connected to the end link mechanism 6 are sequentially overlapped from below as shown in FIG. 9, and the plurality of slats 4 are all raised and overlapped with each other. The operation of the electric motor 72 is stopped and the open state of the opening 3 is maintained as shown in FIG. When the plurality of slats 4 are sequentially stacked from below, the pair of rigid link members 81 and 82 and the pair of rigid link members 84 and 85 are also sequentially folded from below.

  When the electric motor 72 is operated in the open state with the opening 3 being reversed, the chain 63 is caused to travel in the direction A, and the folding is sequentially released from the upper leading edge link member 51 and the rear edge link member 53 by this traveling. Thus, the superposition of the plurality of slats 4 is sequentially released from the upper slats 4. When the folding is sequentially released from the upper leading edge link member 51 and the rear edge link member 53 and starts to be extended, the plurality of pairs of rigid link members 81 and 82 and the plurality of pairs of rigid link members 84 and 85 also Sequential folding is released and it begins to expand. When all of the end link mechanism 6 and the rigid link mechanism 10 are extended and all the overlapping of the plurality of slats 4 are also released, the projection 154 passes through the guide wedge space 166 and is recessed as shown in FIG. The protrusion 154 causes the latch member 156 to rotate against the elastic force of the elastic means 157 to release the engagement of the protrusion 153 with the recess 155, and this release causes the protrusion 154 to move. The swingable member 37 is rotated, and the trailing edge link member 53 is raised relative to the leading edge link member 51 via the string-like body 44 pulled upward by this rotation, and the string is lowered downward. The leading edge link member 51 is lowered relative to the trailing edge link member 53 via the body 41 and the plurality of slats 4 are rotated synchronously, and the opening 3 is suspended as shown in FIGS. It is in the closed state by a series of a plurality of slats 4 are tilted in the direction. In this closed state, the swing pin 29 is moved from the slit 25 to the slit 28 and is disposed at the end 96, and is locked to the locking surface 27, so that upward movement thereof is prohibited. Thereafter, the operation of the electric motor 72 is stopped and the closed state of the opening 3 is maintained.

  According to the blind device of this example, the frame 2, the plurality of slats 4 juxtaposed with each other in the vertical direction Z in the opening 3 surrounded by the frame 2, and the ends in the lateral direction Y of the plurality of slats 4 An end link mechanism 6 that interconnects the portions 5 in the vertical direction Z, and the lowest slat 4 of the plurality of slats 4 and the lowermost slat 4 is lowered to lower the plurality of slats 4. A lifting mechanism 7 that moves up and down, a tilt mechanism 8 that is connected to the upper end of the end link mechanism 6 and tilts the plurality of slats 4 when the plurality of slats 4 are lifted and lowered by the lifting mechanism 7, and a plurality of slats 4. And a slat fixing mechanism 14 for fixing the positions of the plurality of slats 4 when the opening is closed. The slat fixing mechanism 14 is the lowest of the plurality of slats 4. At least one swing pin 29 and 99 which is provided on the slat 4 and swings when the slat 4 is tilted by the tilt mechanism 8 and the swing pin 29 and 99 which are provided on the frame 2 and are closed when the opening is closed. Since at least one locking surface 27 and 101 for locking the rocking pins 29 and 99 so as to prohibit the upward movement is provided, the rocking pins 29 and 99 are engaged when the opening is closed. By engaging with the stop surfaces 27 and 101, the lowermost slat 4 and the plurality of slats 4 connected to the lowermost slat 4 can be prevented from moving upward, whereby the opening 3 closed by the plurality of slats 4 is formed. The possibility of unexpected opening can be reduced, and thus the plurality of slats 4 can be properly fixed, and the open closed state can be maintained. In the example of the slit 28 having the front end portion 95 and the rear end portion 96, once the plurality of slats 4 are tilted in the vertical direction and the swing pin 29 is once disposed on the front end portion 95, Therefore, even if the plurality of slats 4 are lifted, the swing pin 29 is lifted and locked to the locking surface 27 as it is lifted. Even when tilted horizontally, the opening closed state can be maintained.

  According to the blind device 1, the rigid shaft members 9 respectively extending in the lateral direction Y on the plurality of slats 4 and the plurality of slats 4 at intermediate positions in the lateral direction Y of the plurality of slats 4. Since the rigid link members 10 that connect the rigid shaft members 9 disposed in the vertical direction Z to each other are provided, it is possible to prevent a plurality of slats from being bent, and at the center portion of the slats 4. According to the blind device 1 which can prevent fluttering and can maintain the distance between the central portions of the adjacent slats 4 and further includes the suspension plate 91, the slats 4 can be moved by the inertia of the slats 4 at the end of the descent. Vibration can be prevented.

  By the way, in each of the rigid link mechanisms 10 described above, when the rigid link members 81 and 82 are folded, the rigid link members 81 and 82 and the rigid link members 84 and 85 are folded outside the overlapped upper and lower slats 4. However, instead of this, as shown in FIGS. 15 and 16, in the folding of the rigid link members 81 and 82 and the rigid link members 84 and 85, the rigid link member 81 and the upper and lower slats 4 are overlapped. Each of the slats 4, the rigid link members 81 and 82, and the rigid link members 84 and 85 may be formed such that the 82 and the rigid link members 84 and 85 are folded. Rigid link members 81 and 82 and rigid phosphorus so that the shaft member 80 is positioned close to the four sides Each slat 4 is formed such that the members 84 and 85 are bent, and the folded rigid link members 81 and 82 and the space capable of accommodating the rigid link members 84 and 85 are formed between the superimposed slats 4. It may be formed in a curved shape. Moreover, the base frame is fixed to the window sash vertical frame installed in the opening of the outer wall of the building, and the opening structure of the outer wall is configured by fixing the vertical frames 11 and 12 of the blind device 1 to the base frame. Alternatively, the base frame may be directly fixed to the outer wall, and the blind device 1 may be integrated with the window sash.

DESCRIPTION OF SYMBOLS 1 Blind device 4 Slat 6 End link mechanism 7 Elevating mechanism 8 Tilt mechanism 9 Rigid shaft member 10 Rigid link mechanism 14 Slat fixing mechanism 29, 99 Swing pin 27, 101 Locking surface

Claims (14)

  A frame, a plurality of slats juxtaposed in the vertical direction in an opening surrounded by the frame, an end link mechanism that interconnects the lateral ends of the slats in the vertical direction, and a plurality of slats The slats are lifted from the lowest slat and the lowermost slat is lowered and the slats are moved up and down, and the slats are connected to the upper ends of the end link mechanisms. A tilt mechanism that tilts the plurality of slats when the slats are raised and lowered, and a slat fixing mechanism that fixes the positions of the plurality of slats when the openings are closed by the plurality of slats. It is provided in the lowest slat of the slats and swings when the slats tilt by the tilt mechanism. And at least one locking surface that is provided on the frame and that locks the swing pin so as to prohibit the upward movement of the swing pin when the opening is closed. Blind device.   The frame includes a pair of vertical frames juxtaposed with each other with a plurality of slats in the horizontal direction, and the locking surface is provided on at least one vertical frame of the pair of vertical frames. The blind device according to 1.   The blind device according to claim 2, wherein the locking surface is a surface that defines a long hole or a slit provided in a vertical frame extending along the swing direction of the swing pin.   The frame includes a pair of vertical frames juxtaposed with each other with a plurality of slats in the horizontal direction, and a lower frame that extends in the horizontal direction by bridging the lower portions of the pair of vertical frames. The blind device according to claim 1, wherein the locking surface is formed on a locking member protruding upward from the lower frame.   The frame includes a pair of vertical frames juxtaposed with each other with a plurality of slats in the horizontal direction, and a lower frame that extends in the horizontal direction by bridging the lower portions of the pair of vertical frames. The slat fixing mechanism includes a plurality of rocking pins and a plurality of locking surfaces corresponding to the plurality of rocking pins, and at least one locking surface of the plurality of locking surfaces. The blind according to claim 1, wherein the blind is provided on the vertical frame, and at least one of the plurality of locking surfaces is formed on a locking member protruding upward from the lower frame. apparatus.   The blind device according to claim 4 or 5, wherein the locking member has a flange portion at the protruding end portion, and the locking surface is formed on the flange portion.   The blind device according to claim 6, wherein the hook portion of the locking member is arranged rearward with respect to the tilt axis of the lowest slat.   The blind device according to any one of claims 1 to 7, wherein the swing pin is provided apart from the tilt axis of the lowest slat.   The blind device according to any one of claims 1 to 8, further comprising a rigid shaft member that extends laterally on the lowest slat.   The blind device according to any one of claims 1 to 8, further comprising a rigid shaft member that extends laterally on each of the plurality of slats.   The blind according to claim 10, further comprising a rigid link mechanism that interconnects rigid shaft members respectively disposed in the plurality of slats in the vertical direction at intermediate positions in the lateral direction of the plurality of slats. apparatus.   The rigid link mechanism includes a plurality of a pair of rigid link members that are rotatably connected to each other at one end via a shaft member, and a plurality of pairs that are rotatably connected to each other via a shaft member. Each of the plurality of rigid link members has a bent portion formed on one of the plurality of pairs of rigid link members, and the other end of each of the plurality of pairs of rigid link members. The blind device according to claim 11, wherein the blind device is rotatably connected to a rigid shaft member.   The blind device according to any one of claims 9 to 12, wherein the rigid shaft member is disposed at a front end edge or a rear end edge of the slat.   The opening structure of the outer wall of a building provided with the blind apparatus as described in any one of Claim 1 to 13.

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