JP4466639B2 - Blind device - Google Patents

Description

  The present invention relates to a blind device that is arranged in an opening such as a window of a building and opens and closes the opening.

  The present applicant has previously proposed a blind device as described in JP-A-8-326445.

  As shown in FIGS. 10 to 18, the blind device 1 described in Japanese Patent Application Laid-Open No. 8-326445 includes a link mechanism 2, a link mechanism 3 juxtaposed to the link mechanism 2, and one end 4 via a shaft 5. A plurality of slat support mechanisms 8 in which the other end 6 is rotatably connected to the link mechanism 3 via a shaft 7 to the link mechanism 2, and a slat 9 supported by each of the slat support mechanisms 8, The link mechanisms 2 and 3 are connected to the upper ends 10 and 11 of the link mechanisms 2 and 3, respectively. A tilt mechanism 12 that tilts the slat 9 by causing a relative position change in the link mechanisms 2 and 3, and the link mechanisms 2 and 3. Linked to the lower part 13 via the slat support mechanism 8 at the lowermost end, the link mechanisms 2 and 3 are bent to cause the link mechanisms 2 and 3 to be extended, the extension mechanism 14, and the link bending and extension mechanism 14 Upon extension of the mechanism 2 and 3, to actuate the tilt mechanism 12., and a clutch mechanism 15 for transmitting link bend, the operation of the extension mechanism 14 to tilt mechanism 12.

  The link mechanism 2 includes a plurality of link members 22 that are rotatably connected in series via a shaft 5 and a shaft 21, and the link mechanism 3 is connected to each other in series via a shaft 7 and a shaft 23. A plurality of link members 24 are rotatably connected. The link members 22 and 24 are integrally provided with a restriction piece 25 that defines the bending (folding) direction of the link mechanisms 2 and 3.

  Each of the slat support mechanisms 8 has one end 4 at the connecting portion (the portion of the shaft 5 and the shaft 21) of the link member 22 that is freely rotatable with respect to the other connecting portion (the portion of the shaft 5). The other end 6 is connected to every other connecting portion (the shaft 7 and the shaft 23) of the link member 24 at the other connecting portions (the shaft 7 and the shaft 23). The arm 31 is pivotally connected to the part) via the shaft 7, and the mounting portion 32 is integrally fixed to the substantially central portion of the arm 31 and extends in the horizontal direction. The portion 32 extends through a guide path 34 formed in the vertical frame 33 and extends in the vertical direction. The slats 9 are fixed to the outer mounting portions 32 of the vertical frame 33, and each of the slat support mechanisms 8. Is guided by the guide path 34 and is movable up and down. We are supporting.

  The tilt mechanism 12 includes a rotating body 43 rotatably provided on a shaft 41 via a bearing 42, one end 44 and 45 of the rotating mechanism 43, and the other end 46 and 47 of the link mechanism 2 and 3. A pair of string-like bodies, for example, wires 50 and 51, respectively connected to the respective upper ends 10 and 11 are provided.

  The link bending / extending mechanism 14 includes a chain 61 as a flexible traveling body having one end 59 and the other end 60, a bending preventing means 62 for preventing the chain 61 from bending, and the chain 61 as A and B. A traveling device 63 that travels in the direction and a connecting means 64 that connects the chain 61 to the lower portions 13 of the link mechanisms 2 and 3 are provided.

  The blocking means 62 includes a pair of guide walls 71 and 72 formed integrally with the vertical frame 33, and a chain presser 70 provided on the vertical frame 33 and arranged around the sprocket wheel 73. The chain 61 travels through the guide paths 74 and 75 formed between the pair of guide walls 71 and 72 and the chain passage 76 between the chain presser 70 and the sprocket wheel 73, and the pair of guide walls 71. And 72 and the chain presser 70 are prevented from bending.

  The traveling device 63 includes a sprocket wheel 73 as a rotating body with which the chain 61 is engaged and engaged, and a rotation driving device 78 that rotates the sprocket wheel 73. The sprocket wheel 73 is coaxial with the rotating body 43. The rotation drive device 78 is attached to the vertical frame 33 in support of the electric motor 79 and the electric motor 79, and is an output rotation shaft of the electric motor 79. A speed reducer 80 that decelerates the rotation and transmits the reduced speed to the shaft 41, the shaft 41 is rotated by the operation of the electric motor 79 to rotate the sprocket wheel 73, and thereby the chain hung on the sprocket wheel 73. 61 is run in the A and B directions.

  The connecting means 64 connects the lower end 59 of the chain 61 to the lower portions of the link mechanisms 2 and 3 via the slat support mechanism 8 at the lowermost end. A movable body 81 connected to the mechanism 8, one end 82 is rotatably and linearly connected to the movable body 81, and the other end 83 is rotatably connected to one end 59 of the chain 61; The torsion coil spring 87 is disposed between the chain 61 and the arm 84, one end 85 is locked to one end 59 of the chain 61, the other end 86 is locked to the arm 84, and the central portion is wound around the pin 95. The movable body 81 has a mounting portion 32 of the slat support mechanism 8 passing therethrough, and is arranged in the guide path 34 and guided to the guide path 34 so as to be movable up and down. Main body 91 and main body 9 And a plate-like mounting member 93 attached to the arm 84 through the pin 92, the arm 84 has a long hole 94 at one end 82, and the pin 92 is inserted into the long hole 94. Thus, the one end 82 is connected to the movable body 81 so as to be rotatable and linearly movable. The other end 83 of the arm 84 is rotatably connected to one end 59 of the chain 61 via a pin 95. The spring 87 elastically biases the arm 84 against the one end 59 of the chain 61 so as to rotate the arm 84 counterclockwise with respect to the one end 59 of the chain 61, thereby guiding the movable body 81. It is made to move downward along the path 34.

  The clutch mechanism 15 includes a claw member 97 that is rotatably attached to the rotating body 43 via a shaft 96, an engagement pin 98 that is attached to the vertical frame 33 so that the claw member 97 engages, and a claw member. Engagement protrusions 99 (see FIGS. 16 to 18) provided on the chain 61 of the link bending / extension mechanism 14 so as to abut the contact member 97 and release the engagement of the claw member 97 with the engagement pin 98. The claw member 97 is integrally provided with a claw portion 101 having a recess 100 that engages with the engagement pin 98 and a contact portion 102 that comes into contact with the engagement protrusion 99. The rotating body 43 is formed with a notch 103 that allows the engagement protrusion 99 to approach the contact portion 102 so that the engagement protrusion 99 contacts the contact portion 102. When the claw member 97 is rotated by the contact of the engagement protrusion 99 with the contact portion 102, and the mutual engagement between the recess 100 of the claw portion 101 and the engagement pin 98 is released, the rotating body 43. Accordingly, the rotating body 43 is rotated as the chain 61 travels, and the claw member 97 is rotated by releasing the contact of the engagement protrusion 99 with the contact portion 102, so that the recess of the claw portion 101 is rotated. When 100 and the engagement pin 98 are engaged with each other, the rotating body 43 is fixed to the vertical frame 33 via the engagement pin 98 and cannot rotate.

  Further, in the blind device 1, the vertical frame 33 as described above is provided on the left and right sides of the opening of the building, and the above mechanism is similarly mounted on the left and right vertical frames 33. The other ends of the slats are supported by slat support mechanisms (not shown) in the same manner as described above. Further, the shaft 41 is extended to the other vertical frame 33, and the link bending and extending mechanism provided on the other vertical frame 33 is operated in synchronization with the other as described above. Reference numeral 105 denotes an upper cover which is not described in the above publication, and the upper cover 105 is supported by the vertical frame 33 so as to cover the rotation drive device 78 and the like.

  In the above blind device 1, as shown in FIG. 15, when the link mechanisms 2 and 3 are extended, the slat 9 is tilted substantially vertically so as to completely close the opening of the building, As shown in FIG. 18, the engagement protrusion 99 provided on the chain 61 is disposed in the notch 103 and is in contact with the contact portion 102 of the claw member 97. When the electric motor 79 is operated from this state, the sprocket wheel 73 is rotated by the rotation of the shaft 41 and the chain 61 travels in the A direction. As the chain 61 travels in the A direction, the protrusion 99 is also moved counterclockwise about the shaft 41, and by this movement of the protrusion 99, the rotating body 43 is also rotated counterclockwise as shown in FIG. By turning 43, the wire 50 is pulled upward, the wire 51 is lowered downward, and the link mechanism 2 is lifted relatively upward with respect to the link mechanism 3 as shown in FIG. Each of the arms 31 is rotated substantially horizontally, whereby each of the slats 9 is also rotated substantially horizontally to form a bowl shape. When the chain 61 further travels in the direction A, the protrusion 99 starts to come out of the notch 103, and the protrusion 99 comes into contact with the claw portion 101 by the removal of the protrusion 99 from the notch 103, and the claw member 97 is moved. By rotating around the shaft 96, the recess 100 of the claw portion 101 and the engagement pin 98 are engaged with each other. As shown in FIG. 16, when the recess 100 of the claw portion 101 is engaged with the engagement pin 98, the rotation of the rotating body 43 is prevented and held in that state. As the travel of the chain 61 in the A direction continues, the link mechanisms 2 and 3 connected to the lower portion of the chain 61 by the connecting means 64 begin to bend, and this bending causes the link mechanisms 2 and 3 to move to the slat support mechanism 8. The slats 9 attached via the are sequentially stacked from below. When all the slats 9 are overlapped on the upper side, the operation of the electric motor 79 is stopped by a signal from a detector or the like, and the state where the opening is completely opened is maintained.

  When the electric motor 79 is operated in the state in which the opening is completely opened or in the middle of the opening, the chain 61 travels in the direction B, whereby the link mechanisms 2 and 3 extend from above. The slat bundle begins to be released from the upper slats 9. When the link mechanisms 2 and 3 are all extended and the slats 9 are also completely unsuperposed, the projection 99 begins to be inserted into the notch 103 as shown in FIG. In addition, the projection 99 abuts against the abutting portion 102 of the claw member 97 to rotate the claw member 97 to release the engagement of the recess 100 with the engagement pin 98. With this release, the projection 99 moves together. As shown in FIG. 18, the rotating body 43 is rotated clockwise in the reverse direction to the above, the wire 51 is pulled upward, and the wire 50 is lowered downward, thereby causing relative displacement in the link mechanisms 2 and 3. Thus, the slat 9 attached to the link mechanisms 2 and 3 via the slat support mechanism 8 is tilted in the opposite direction, and the opening is completely closed as shown in FIG. Thereafter, the operation of the electric motor 79 is stopped by a signal from the detector or the like, and the state in which the opening is completely closed is maintained.

  In the blind device 1, after the opening is completely closed, the operation of the electric motor 79 is not stopped immediately, and even if the chain 61 further travels in the B direction, the other end 83 is connected to one end 59 of the chain 61. The pivotally connected arm 84 itself pivots about the pin 92 against the elastic force of the spring 87 and directly moves with respect to the movable body 81 at one end 82 thereof. It does not cause downward movement.

  By the way, in the blind device 1 described in Japanese Patent Laid-Open No. 8-326445, the output rotation shaft of the speed reducer 80 can be directly connected to the shaft 41 or can be coaxial with the shaft 41 to rotate the output rotation shaft of the speed reducer 80. There is an advantage that a transmission mechanism or the like for transmitting to the shaft 41 can be made unnecessary, and there is an advantage that the traveling device 63 can be configured compactly. However, the electric motor 79 and the speed reducer 80 are arranged above the slats 9 to open the opening. However, there is a problem that the opening of the building cannot be greatly opened even in the fully opened state, because the rising of the bundle of the slats 9 overlapped with each other is restricted.

  Further, in the blind device 1 described in the above publication, if the bundle of slats 9 is further increased to the extent that the wires 50 and 51 are bent, the wires 50 and 51 are entangled with each other, There is a possibility that normal operation cannot be performed due to catching on other parts.

  The present invention has been made in view of the above-mentioned points, and the object of the present invention is to cause inconveniences such as malfunction even if the slat bundle is configured to be raised more greatly. There is no blind device to provide.

  In an example of the present invention, a blind device capable of greatly opening an opening of a building can be provided.

  The blind device of the present invention includes a first link mechanism, a second link mechanism juxtaposed to the first link mechanism, one end to the first link mechanism, and the other end to the second link mechanism. A plurality of slat support mechanisms that are rotatably connected, slats supported by each of the slat support mechanisms, and upper ends of the first and second link mechanisms, respectively. The two link mechanisms are connected to a tilt mechanism that causes a relative position change to tilt the slats, and lower portions of the first and second link mechanisms, and the first and second link mechanisms are bent and A link bending and extending mechanism that causes extension to raise and lower the slats, and a link to operate the tilt mechanism when the first and second link mechanisms are extended by the link bending and extending mechanism. And a clutch mechanism that transmits the operation of the bending mechanism and the extension mechanism to the tilt mechanism, and the tilt mechanism includes a pair of coupling bodies coupled to the respective upper ends of the first and second link mechanisms. Each connecting body is composed of a row of a plurality of link members that are rotatably connected to each other.

  According to the blind device of the present invention, the first and second link mechanisms are connected to the upper ends of the first and second link mechanisms in order to cause relative position changes in the first and second link mechanisms and tilt the slats. The connecting means of the tilt mechanism is composed of a pair of connecting bodies each composed of a plurality of link members instead of the conventional string-like body, so that the raised position of the bundle of slats can be set upward. Inconveniences such as tangling to other members due to the bending of the string-like body, which may occur in the conventional string-like body, can be eliminated, and thus malfunction due to tangling or the like can be preferably prevented.

  Further, in the blind device of the present invention, each connecting body can be bent with a predetermined bending direction. By configuring the blind device in this way, malfunction can be prevented more reliably.

  In the example of the blind device of the present invention, the link bending and extending mechanism includes a flexible traveling body, a traveling device for traveling the traveling body, and a connecting means for coupling the traveling body to the lower part of the link mechanism. The traveling device includes a rotating body with which the traveling body engages and a rotation driving device that rotates the rotating body, and the rotation driving device deviates from the arrangement space of the slats extending in the vertical direction, It is provided on the side of the arrangement space.

  According to the blind device of the present invention in such an example, since the rotation drive device is provided on the lateral side of the arrangement space outside the arrangement space of the slats extending in the vertical direction, the rotation drive device is obstructed. Without being able to open the opening of the building, it is possible to set the raised position of the slat bundle in the fully open state so that the opening of the building can be greatly opened in the fully opened state.

  In the above example of the blind device of the present invention, the rotation drive device is provided on the lateral side above the arrangement space, and according to this blind device, the rotation generated by the traveling device is transmitted to the rotating body. The mechanism can be configured with a small occupied space and can be accommodated in the upper cover in a compact manner.

  Further, in the above example of the blind device of the present invention, the rotational drive device includes an electric motor and a speed reducer that decelerates the rotation of the output rotation shaft of the electric motor, and the traveling device outputs the output of the speed reducer. A transmission mechanism for transmitting the rotation of the rotating shaft to the rotating body is provided.

  According to the present invention, even if the raised position of the bundle of slats is set upward, the problems such as entanglement with other members due to the bending of the string-like body, which may occur in the conventional string-like body, are eliminated. Thus, it is possible to provide a blind device that can preferably prevent malfunction due to entanglement and the like, and to provide a blind device that can greatly open an opening of a building.

BEST MODE FOR CARRYING OUT THE INVENTION

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

  1 to 4, the blind device 110 of this example is the same as the blind device 1 described in Japanese Patent Laid-Open No. 8-326445, in which the rotational drive device 78 of the traveling device 63 is arranged in the vertical space 111 of the slat 6. The tilt mechanism 12 is provided on the lateral side above the arrangement space 111, and the tilt mechanism 12 includes a pair of rows of link members 112 that are rotatably connected to each other instead of the wires 50 and 51. The connecting bodies 113 and 114 are provided.

  The rotation drive device 78 includes an electric motor 79 and a reduction gear 80 that decelerates the rotation of the output rotation shaft of the electric motor 79, and the traveling device 63 uses the sprocket to rotate the output rotation shaft 115 of the reduction device 80. A transmission mechanism 116 for transmitting to the wheel 73 is provided. The output rotating shaft 115 of the speed reducer 80 extends to the other vertical frame 33 in the same manner as the blind device 1, and the link bending / extending mechanism provided in the other vertical frame 33 is transmitted in the same manner as the transmission mechanism 116. It is designed to operate synchronously through a mechanism.

  A rotation drive device 78 including an electric motor 79 and a speed reducer 80 is attached to a bracket 121, and the bracket 121 is attached above the vertical frame 33.

  The transmission mechanism 116 includes a sprocket wheel (not shown) fixed to the output rotating shaft 115 of the speed reducer 80, a sprocket wheel 122 fixed to the shaft 41, and an endless chain 123 wound around both sprocket wheels. It has. In the blind device 110, the shaft 41 is rotatably supported by both vertical frames 33 via bearings at both ends thereof.

  The traveling device 63 of the blind device 110 described above causes the endless chain 123 to travel through the speed reducer 80 by the operation of the electric motor 79, rotates the sprocket wheel 122, and thus rotates the shaft 41. ing. As the shaft 41 rotates, the blind device 110 operates in the same manner as the blind device 1.

  Then, in the blind device 110 provided with the rotation driving device 78 provided on the lateral side above the arrangement space 111 outside the arrangement space 111 of the slats 6 extending in the vertical direction, as shown in FIG. Without being disturbed by the device 78, the bundle of slats 9 can be raised more upwards, and thus the opening of the building can be fully opened.

  One connecting body 113 formed of a row of link members 112 has an upper end 125 of the uppermost link member 112 rotatably connected to a bracket 127 via a shaft 126, and a lower end 128 of the lowermost link member 112. Are connected to the shaft 5 together with the upper end 10 of the uppermost link member 22 of the link mechanism 2 and the one end 4 of the arm 31 so that the link members 112 can rotate with respect to each other via the shaft 129. Concatenated. Similarly, the other connecting body 114 in the row of the link members 112 has an upper end 125 of the uppermost link member 112 rotatably connected to the bracket 127 via the shaft 131, similarly to the connecting body 113. The lower end 128 of the lower link member 112 is rotatably connected to the shaft 7 together with the upper end 11 of the uppermost link member 24 of the link mechanism 3 and the other end 6 of the arm 31, and each link member 112 is connected to the shaft 7. The two parts are connected to each other through 132. Each link member 112 is the same as the restriction piece 25 and includes a restriction piece 133 that defines the bending (folding) direction of the coupling bodies 113 and 114.

  The connecting bodies 113 and 114 have their bending (folding) direction determined by the restriction piece 133 as described above, and each link member 112 is formed of a plate-like member, and the bending is performed in a vertical plane. It has come to be.

  Further, in the third link member 112 of the coupling bodies 113 and 114, the bent regulation piece 133 is integrally formed with a triangular or semicircular projection 134, and the projection 134 is connected to the coupling body 113 and 114. In each of the folds 113 and 114, the laterally protruding portions of the connecting portions of the second and third link members 112 are restricted by contacting the inner surface of the vertical frame 33. Further, projections 135 and 136 are formed on the uppermost link member 112 of the coupling body 114, and the projection 135 is formed by the vertical frame 33 when the uppermost link member 112 is rotated when the coupling body 114 is folded. Further, the uppermost link member 112 is prohibited from rotating further, and the upper end of the third link member 112 is brought into contact with the protrusion 136 when the coupling body 114 is folded. Further raising of the second link member 112 is prohibited.

  The bracket 127 is fixed to one surface of the rotating body 43 via a screw 141, and swings as the rotating body 43 rotates.

  The tilt mechanism 12 including the pair of connecting bodies 113 and 114 operates in the same manner as the tilt mechanism 12 in the blind device 1, and the pair of connecting bodies is raised by raising the bundle of slats 9 when the opening of the building is fully opened. As shown in FIG. 5, as a result of bending 113 and 114 in a vertical plane with a predetermined bending (folding) direction, a pair of connecting bodies 113 and 114 are entangled with each other, 6 is compactly folded as shown in FIG. 6 and the bundle of slats 9 cannot be lowered when the opening of the building is completely closed, as shown in FIG. Does not cause inconveniences such as being unable to operate as desired. In particular, as described above, the rotary drive device 78 is provided on the lateral side above the arrangement space 111 away from the arrangement space 111 of the slats 6 extending in the vertical direction, and the bundle of slats 9 is raised more upward. Even in such a case, it is possible to reliably eliminate the entanglement of the coupling bodies 113 and 114 and the hooking of the coupling bodies 113 and 114 to other parts.

  Further, when the connecting body 114 is folded following the rising of the bundle of slats 9, the projection 134 comes into contact with the inner surface of the vertical frame 33 as shown in FIG. 7, and the second and third link members 112 are connected to each other. As shown in FIG. 8, the upper end of the third link member 112 abuts against the protrusion 136 so that it extends beyond the third link member 112. 9 is prohibited so that the upper end of the third link member 112 is not sandwiched between the bracket 127 and the vertical frame 33. In addition, as shown in FIG. , The uppermost link member 112 is prohibited from further rotation, and the projection 134 is sandwiched between the uppermost link member 112 and the second link member 112, and the second link member 112. Against The third link member 112 is adapted to thereby preventing the no longer rotating, smooth folding of the connector 114 is to be carried out thereby.

  In the third link member 112 of the connection body 113, the protrusion 134 also functions in the same manner as that of the third link member 112 of the connection body 114, and thus the connection body 113 is also smoothly folded. It is like that.

  When each of the coupling bodies 113 and 114 is configured with a larger number of link members 112 than in this example, the odd-numbered link members 112 are provided with protrusions 134 on the odd-numbered link members 112 from above. It is preferable to restrict the lateral extension of the connecting portion with the link member one before that.

  The transmission mechanism is not limited to the one using the endless chain 123, and any one using a toothed pulley and a timing belt or one using a gear mechanism may be used. The speed reducer 80 may be omitted, and in this case, the transmission mechanism may have a speed reducing function as necessary.

  Further, as shown in FIG. 5, the uppermost link member 112 of the coupling body 113 is rotated in the clockwise direction around the axis 126, and the uppermost link member 112 of the coupling body 114 is counterclockwise around the axis 131. A torsion spring may be interposed between the link member 112 and the bracket 127 so as to be forcibly rotated in the direction of, and thus the coupling bodies 113 and 114 can be bent (folded) by the torsion spring. When the uppermost link member 112 is forcibly restricted, the connecting members 113 and 114 can be reliably bent without error, and the connecting members 113 and 114 can be bent. It is possible to more reliably eliminate the catch on the parts.

1 is a perspective view of a preferred embodiment of the present invention. It is a partial side view of the example shown in FIG. It is a partial cross section figure of the example shown in FIG. It is a partial explanatory view 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 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 perspective view of a prior art example. It is side surface explanatory drawing of the example shown in FIG. It is front explanatory drawing of the example shown in FIG. It is a partial plan explanatory view shown in FIG. It is a partial explanatory view 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 operation | movement explanatory drawing of the example shown in FIG. It is operation | movement explanatory drawing of the example shown in FIG.

Explanation of symbols

6 Slat 12 Tilt mechanism 63 Traveling device 78 Rotation drive device 110 Blind device 111 Arrangement space 112 Link member 113, 114 Connected body

Claims (2)

  A first link mechanism, a second link mechanism juxtaposed to the first link mechanism, one end rotatably connected to the first link mechanism, and the other end to the second link mechanism. A plurality of slat support mechanisms, a slat supported by each of the slat support mechanisms, and an upper end of each of the first and second link mechanisms, and relative to the first and second link mechanisms. And a tilt mechanism that tilts the slat by causing a change in position and a lower part of the first and second link mechanisms, and bending and extending the first and second link mechanisms, When the first and second link mechanisms are extended by the link bending / extension mechanism, the link bending / extension mechanism is operated in order to operate the tilt mechanism. The tilt mechanism has a pair of connecting members connected to the respective upper ends of the first and second link mechanisms, and the connecting members are connected to each other. A blind device comprising a row of a plurality of link members that are rotatably connected.   The blind device according to claim 1, wherein each coupling body is bendable with a predetermined bending direction.

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