JP6810193B2 - Opening and closing device - Google Patents

Description

The present invention relates to an opening opening / closing device such as a blind device or a shutter device that is arranged in an opening such as a window or an entrance of a building and is used to open / close the opening.

For example, as described in Patent Document 1, the blind device includes a frame body arranged in an opening of a building such as a window, a plurality of blades juxtaposed with each other in the opening surrounded by the frame body, and the like. A hanging mechanism that suspends the highest blade among multiple blades, a link mechanism that connects multiple blades to each other and is foldable, and a link mechanism that raises from the lowest blade among multiple blades and is the highest. It is equipped with an elevating mechanism that lowers the lower blades to raise and lower a plurality of blades.

Re-special table 2011-09907 Japanese Unexamined Patent Publication No. 2011-132806

By the way, in such a blind device, a plurality of blades are automatically raised and lowered by an electric motor when opening and closing an opening. Instead of the electric motor, a pulley is fixed to a rotating shaft, and a string or a ball is attached to the pulley. When the chain is wound and the blades are raised and lowered manually by manually running a string or a ball chain, and the opening closed by a plurality of blades is raised in advance from the lowest blade to open the opening. Alternatively, in any case where the opened opening is raised in advance of the uppermost blade to close the opening, the load on the blade increases according to the number of blades raised. Therefore, as the degree of opening or closing increases, it is necessary to gradually apply a large ascending force to the lowermost or uppermost blades, and as a result, the operator who manually runs the string or ball chain has a corresponding manual running force. Is added to the string or ball chain, which makes it difficult to operate, and the operator can manually operate the string or ball chain to open and close the opening with multiple blades. For example, it is difficult for an operator to automatically open and close an opening by a plurality of blades by a momentary manual operation of a string or a ball chain.

Such a problem is not limited to the blind device, and in a shutter device using a string or a ball chain, manually the most manually in a shutter device using a string or a ball chain or not using a string or a ball chain. It can also occur in a shutter device in which the lower blade is moved up and down to open and close the opening.

The present invention has been made in view of the above points, and an object of the present invention is to have a configuration that can eliminate the difficulty of manual operation by an operator, and a specific manual operation by an operator. It is an object of the present invention to provide an opening opening / closing device which can be configured to perform a specific opening / closing operation on an opening by a plurality of blades.

The opening / closing device of the present invention has a plurality of blades juxtaposed in the vertical direction, a connecting mechanism for connecting adjacent blades in the vertical direction among the plurality of blades, and the direction of the load of the blades. It is equipped with a reaction force generating mechanism that generates a reaction force having the direction of, and the blades are raised by at least the increasing reaction force from the reaction force generating mechanism.
Further, the opening opening / closing device as the opening / closing device of the present invention opens and closes the frame body arranged in the opening of the building and the opening surrounded by the frame body while being juxtaposed with each other in the vertical direction. A connecting mechanism that connects a plurality of blades to each other and adjacent blades in the vertical direction among the plurality of blades, and blades in the opening that increase according to a change in the number of blades raised in the opening. It is equipped with a reaction force generation mechanism that generates a reaction force in the direction opposite to the direction of the load, so that the blades rise at the opening are performed by at least the increasing reaction force from the reaction force generation mechanism. It has become.

According to the opening opening / closing device of the present invention, the reaction force generating mechanism is provided, and the blades in the opening are raised by at least the increasing reaction force from the reaction force generating mechanism. As a result of being able to assist the manual operation force by the operator by the reaction force, the difficulty of the manual operation by the operator can be eliminated, and the increase rate of the reaction force can be set as desired to be specific by the operator. By manual operation, it is possible to perform a specific opening / closing operation on the opening by a plurality of blades.

For example, an opening closed by a plurality of blades is raised in advance from the lowest blade, and upper blades are superposed on the lowest blade one after another, whereby the opening is configured to be opened. In any case, or when the opened opening is raised in advance from the uppermost blade and the lower blades are lifted one after another by the uppermost blade, thereby closing the opening. In addition, the rate of increase of the reaction force generated by such a reaction force generating mechanism is made equal to the rate of increase of the load of the blade to be raised and the member to be raised accompanying the blade to be raised. Even if the number of blades to be raised increases when opening and closing the opening, the opening can be opened and closed with a substantially constant manual operation force without increasing the manual operation force of the operator, making it difficult for the operator to manually operate the opening. In addition, the rate of increase of the reaction force generated by the reaction force generation mechanism should be made larger than the rate of increase of the load of the blade to be raised and the member to be raised accompanying the blade to be raised. By configuring the above, the opening closed by the plurality of blades is raised in advance from the lowest blade, and the upper blades are superposed on the lowermost blade one after another, whereby the opening is opened. In the case of the above configuration, when a momentary operating force is applied to the lowest blade from the outside to open the opening in the closed state of the opening, the blades are automatically applied one after another from the lowest blade. On the other hand, the opened opening is raised in advance from the uppermost blade, and the lower blades are lifted one after another by the uppermost blade, thereby closing the opening. In the case of the above configuration, when an instantaneous operating force is applied to the uppermost blade from the outside to close the opening in the open state of the opening, the blades are automatically applied one after another from the uppermost blade. It will be raised, and in any case, it will be possible to automatically open and close the opening despite manual operation, and further, the opening closed by a plurality of blades will be covered. When a plurality of blades are raised at the same time and the uppermost blade is involved with the lower blades following the uppermost blade one after another to open the opening, the opening is closed. When an instantaneous operating force is applied to a plurality of blades that close the openings in order to open the openings, the blades can be automatically involved, and thus the operator. Allows a specific manual operation by multiple blades to perform a specific opening and closing operation on the opening. be able to. In the present invention, the reaction force of the reaction force generation mechanism may be generated from the middle of the rise of the blade.

In one example of the opening opening / closing device of the present invention, a lifting mechanism for raising and lowering a plurality of blades when opening and closing the opening is further provided, and the reaction force generating mechanism is a blade that is raised by the lifting mechanism at the opening. A reaction force that increases in response to an increase in the load of the blades at the opening according to the increase in the number of sheets is applied to the elevating mechanism, and the elevating mechanism at least raises the blades at the opening by a reaction force generating mechanism. In such a case, the elevating mechanism raises the blades at the opening by the ascending force applied from the outside in addition to the reaction force. You may be.

In a preferred example, the reaction force generating mechanism imparts a reaction force to the elevating mechanism that decreases in response to a decrease in the load on the blades at the opening in response to a decrease in the number of blades lowered by the elevating mechanism at the opening. In such an example as well, by configuring in the same manner as described above, it is possible to eliminate the difficulty of manual operation by the operator when lowering the blades, and also, a specific manual operation by the operator is possible. By the operation, it is possible to perform a specific opening / closing operation on the opening by the plurality of blades.

In the opening opening / closing device of the present invention, the elevating mechanism includes a flexible long body, a traveling mechanism for traveling the long body, and a transmission mechanism for transmitting the traveling of the long body to the blades. In this case, the traveling mechanism may include a rotating body around which the long body is wound and traveling the long body by rotation, and a rotating force that applies a rotating force to the rotating body to rotate the rotating body. The transmission mechanism is provided with an imparting mechanism, and in order to transmit the traveling of the long body to the blades, one end of the hanging portion of the long body that hangs down from the rotating body is connected to the blades, and a reaction force generation mechanism is provided. Is connected at one end to the other hanging part that hangs from the rotating body in the long body wound around the rotating body, and is flexible and has a long weight, and in the long body, from the rotating body. It is provided with a support that accommodates the moving portion of the weight that has moved according to the upward travel of the other hanging portion and supports the moving portion, and the moving portion of the weight supported by this support has a support. , In a long body, it is pulled out from the support as it runs downward from the other hanging part that hangs from the rotating body, and the support by the support is gradually released, and the reaction force generation mechanism is heavy. The load of the drawer portion drawn from the support in the weight may be applied to the elevating mechanism as a reaction force.

Further, in the opening opening / closing device of the present invention, the elevating mechanism includes a flexible long body, a traveling mechanism for traveling the long body, and a transmission mechanism for transmitting the traveling of the long body to the lowermost blade. In this case, the traveling mechanism includes a first rotating body around which a long body is wound, a rotating mechanism for rotating the first rotating body, and a rotational force on the rotating mechanism. The transmission mechanism is provided with a rotational force applying mechanism for imparting a force, and the transmission mechanism connects one end of one hanging portion of the long body that hangs down from the first rotating body to the blade in order to transmit the traveling of the long body to the blade. The reaction force generating mechanism is provided with a second rotating body and a flexible and long weight that is wound around the second rotating body and has a second rotation. One end of the droop that hangs from the second rotating body in the weight wound around the body is the other hanging that hangs from the first revolving body in the long body wrapped around the first revolving body. One end of the other hanging part that is connected to one end of the part and hangs down from the second rotating body in the weight wound around the second rotating body is a free end, and the reaction force generation mechanism is , The load of one hanging from the second rotating body in the weight wound around the second rotating body and the weight wound around the second rotating body hang down from the second rotating body. The difference from the load of the other hanging portion may be applied to the elevating mechanism as a reaction force.

In the present invention, flexible and long weights can generate reaction forces that increase or decrease in response to an increase or decrease in the load of the blades according to the number of blades that can be raised or lowered, for example, connected to each other. It may consist of a plurality of weight elements, preferably a no-back chain having a chain element as the weight element. Such weight elements may have the same mass as each other, but may have different masses from each other, and when a plurality of weight elements having different masses are used. In a weight element row composed of a plurality of weight elements connected to each other, weight elements whose mass gradually increases from one end to the other end may be arranged.

In the present invention, the lowest blade of the plurality of blades in the opening is raised in advance to open the opening, while the lowest blade is lowered in advance to open the opening. Even if it is closed, instead of this, the highest blade among the plurality of blades in the opening is raised in advance in the vertical direction to close the opening, while the uppermost blade is closed. It may be lowered in advance to open the opening.

In another example of the present invention, a plurality of blades in the opening are simultaneously moved up and down to open and close the opening, and in such an example, even if a rotatable take-up member is further provided. Often, in an example provided with a take-up member, the plurality of blades in the opening are taken up one after another by the take-up member from the highest blade when the opening is closed. The blades wound around the member may be unwound from the winding member when the opening is opened, and the reaction force generating mechanism responds to an increase in the number of blades wound around the winding member. It may be designed to generate an increasing reaction force.

In the example of the opening opening / closing device of the present invention in which a plurality of blades at the opening are simultaneously moved up and down to open / close the opening, the reaction force generating mechanism is a long, flexible body that can travel. A weight, a rotatable rotating body around which the weight is wound so that it can be rotated by the running of the weight, and one hanging portion of the weight that hangs down from the rotating body by raising the blade at the opening. The one of the hanging portions may be provided with a connecting mechanism for connecting the blades at the opening so as to transmit to, in which case the connecting mechanism is the lowest blade among the plurality of blades at the opening. One end of the hanging part may be connected to the weight, and the other hanging part hanging from the rotating body on the weight hangs down from the rotating body on the weight when the opening is completely closed. It may have a mass equal to or larger than the mass (weight) of one hanging portion, and further, one end of the other hanging portion hanging from the rotating body in the weight is a free end. You may.

The opening opening / closing device of the present invention is a shutter device or a blind device. In the case of a shutter device, it is arranged in an opening such as an entrance of a building, and in the case of a blind device, it is arranged in an opening such as a window of a building. It should be done.

According to the present invention, the configuration can eliminate the difficulty of manual operation by the operator, and the operator can perform a specific opening / closing operation of the opening by a plurality of blades by a specific manual operation. It is possible to provide an opening opening / closing device which can be configured to be capable of the above.

FIG. 1 is a perspective explanatory view of an example of a preferred embodiment of the present invention. FIG. 2 is a side sectional explanatory view of a part of the example shown in FIG. FIG. 3 is a partial plan sectional cross-sectional explanatory view shown in FIG. FIG. 4 is an explanatory front cross-sectional view of a part of the example shown in FIG. FIG. 5 is an enlarged perspective explanatory view of a part of the example shown in FIG. FIG. 6 is an enlarged side sectional explanatory view of a part of the example shown in FIG. FIG. 7 is an enlarged side sectional explanatory view of a part of the example shown in FIG. FIG. 8 is an explanatory view of the tilt mechanism and the suspension mechanism of the example shown in FIG. FIG. 9 is an enlarged side sectional explanatory view of a part of the example shown in FIG. FIG. 10 is an enlarged side sectional explanatory view of a part of the example shown in FIG. FIG. 11 is an enlarged front cross-sectional explanatory view of a part of the example shown in FIG. FIG. 12 is an exploded perspective explanatory view of a part of the example shown in FIG. FIG. 13 is an enlarged side view of a part of the elevating mechanism of the example shown in FIG. FIG. 14 is an enlarged side view of a part of the elevating mechanism of the example shown in FIG. FIG. 15 is an enlarged front explanatory view of a part of the elevating mechanism of the example shown in FIG. FIG. 16 is an operation explanatory view of a part of the elevating mechanism of the example shown in FIG. FIG. 17 is an operation explanatory view of the tilt mechanism shown in FIG. FIG. 18 is an operation explanatory view of the tilt mechanism shown in FIG. FIG. 19 is an operation explanatory view of the tilt mechanism shown in FIG. FIG. 20 is an operation explanatory view of the elevating mechanism of the example shown in FIG. FIG. 21 is an operation explanatory diagram of the example shown in FIG. FIG. 22 is an operation explanatory view of the example shown in FIG. FIG. 23 is an explanatory diagram of another example of the preferred embodiment of the present invention. FIG. 24 is an explanatory diagram of still another example of the preferred embodiment of the present invention.

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

In FIGS. 1 to 15, the blind device 1 as the opening opening / closing device of this example is vertically arranged in a frame 3 arranged in an opening 2 of a building such as a window and an opening 2 surrounded by the frame 3. A plurality of blades 4 that are juxtaposed with each other in the direction V and open and close the opening 2, and a link mechanism 5 as a connecting mechanism that connects the adjacent blades 4 in the vertical direction V among the plurality of blades 4 to each other. The opening 2 is provided by a hanging mechanism 7 for suspending the uppermost blade 6 from the plurality of blades 4 connected by the link mechanism 5 from the frame body 3, and the opening 2 is provided by the plurality of blades 4 connected by the link mechanism 5. An elevating mechanism 9 that raises and lowers from the lowest blade 8 of the plurality of blades 4 and lowers the lowermost blade 8 to open and close the plurality of blades 4 when opening and closing the opening 2. The load of the blade 4 in the opening 2 is increased or decreased according to the number of blades 4 moved up and down by the elevating mechanism 9 in the portion 2, and the reaction in the direction opposite to the direction of the load of the blade 4 in the opening 2. It includes a reaction force generating mechanism 10 that applies a force to the elevating mechanism 9, and a tilt mechanism 11 that tilts the plurality of blades 4 when the elevating mechanism 9 raises and lowers the plurality of blades 4.

The frame body 3 bridges the vertical frames 15 and 16 juxtaposed with each other, the upper frame 17 arranged by bridging the upper parts of the vertical frames 15 and 16 and covering the upper part, and the lower parts of the vertical frames 15 and 16. It is provided with a lower frame 19 arranged in tandem.

The vertical frame 15 formed in the same manner as the vertical frame 16 bridges the outer side wall portion 21, the inner side wall portion 22 arranged to face the outer side wall portion 21, and the outer side wall portion 21 and the inner side wall portion 22. The front wall portion 23 and the rear wall portion 24 arranged so as to face each other are integrally formed, and the outer side wall portion 21 is integrally formed with the side wall plate portion 25 and the side wall plate portion 25. It is integrally provided with three pairs of holding wall portions 29, 30 and 31 defining three holding grooves 26, 27 and 28 extending in the vertical direction V together with the inner side wall portion 22 in the vertical direction V. It is provided with an extending slit 32.

The upper frame 17 includes a roof portion 36 integrally having a rear plate portion 35, a pair of side plate portions 37 attached to each of the roof portion 36 and the outer side wall portions 21 of the vertical frames 15 and 16, and a pair of side plate portions. 37 is provided with a grid-like front wall portion 38 hanging from the front portion of the roof portion 36 by bridging the roof portion 36.

Each of the blades 4 includes a blade body 41 and a mounting tool 43 for attaching one end 42 of the blade body 41 in the longitudinal direction to the link mechanism 5, and each mounting tool 43 has a corresponding blade at one end. It is fixed to the end portion 42 of the main body 41 via a stopper 44, and at the other end, it projects into the vertical frame 15 through the slit 32.

The link mechanism 5 is foldable by being rotatably connected to each other via a shaft member 52 and a plurality of front edge link members 51 which are rotatably connected to each other via a shaft member 50 and are foldable. Shaft members at the upper ends of the uppermost front edge link member 51 and the trailing edge link member 53, and at the lower ends of the lowermost front edge link member 51 and the trailing edge link member 53, respectively. The uppermost and lowermost lateral members 55 rotatably connected via 54, and the other shaft members 50 and 52 rotatably connected to the front edge link member 51 side and the trailing edge link member 53 side, respectively. The other end of each corresponding attachment 43 protruding into the vertical frame 15 through the slit 32 is fixed to the substantially central portion, and the horizontal member 55 and the shaft members 50 and 52 rotate with each other. In order to determine the folding direction of each of the plurality of freely connected front edge link members 51 and the trailing edge link member 53, each of the other front edge link members 51 and the trailing edge link member 53 is integrally formed. It is provided with a bent portion 56.

In the front edge link member 51 which is rotatably connected to each other by the shaft member 50 to which the horizontal member 55 is not connected and is adjacent to each other, the shaft member 50 is the rear wall when the lowermost front edge link member 51 is raised. The lateral member 55 is rotatably connected to each other by a shaft member 52 to which the lateral member 55 is not connected, and the trailing edges adjacent to each other are similarly rotatably connected to each other. The link member 53 is configured to be folded by being restricted by the bent portion 56 so that the shaft member 52 faces the front wall portion 23 when the lowermost trailing edge link member 53 is raised, and the folded front edge link The member 51 and the trailing edge link member 53 are alternately positioned in the vertical direction V.

The suspension mechanism 7 includes a suspension plate 62 fixed to a swingable member 61 of the tilt mechanism 11 at the upper part of the vertical frame 15, and a shaft member 64 at one end of one arm portion 63 of the suspension plate 62. A wire, a rope, which is rotatably connected to a shaft member 54 at the upper end of the uppermost front edge link member 51, which is rotatably connected to one end 65 of the uppermost link mechanism 5 at the other end. A flexible string-like body 66 such as a band is rotatably connected to a shaft member 68 at the tip of the other arm portion 67 of the hanging plate 62 at one end, and the other of the uppermost link mechanism 5 at the other end. A flexible string-like body 70 such as a wire, a rope, or a band, which is rotatably connected to a shaft member 54 at the upper end of the uppermost trailing edge link member 53 which is the end portion 69 of the The swingable member 61 is swingably (rotatably) attached to the rotary shaft 82 of the elevating mechanism 9, and the rotary shaft 82 is a bearing plate attached to each of the outer side wall portions 21 of the vertical frames 15 and 16. It is rotatably supported by 81 at both ends, and thus the hanging mechanism 7 swings the uppermost blade 6 of the plurality of blades 4 connected by the link mechanism 5 with the string-like bodies 66 and 70. It is hung from the frame 3 via the universal member 61, the rotating shaft 82, and the bearing plate 81.

The elevating mechanism 9 has an endd chain 73 as a flexible elongated body having one ends 71 and 72 on both sides and is held in an inflexible state, and the chain 73 in one direction A and one direction. It includes a traveling mechanism 74 that travels in the other direction B in the direction opposite to A, and a transmission mechanism 75 that transmits the traveling of the directions A and B of one end 71 of the chain 73 to the lowermost blade 8.

The traveling mechanism 74 includes a sprocket wheel 76 as a rotating body on which the chain 73 is wound and the chain 73 is rotated by rotation, and a rotational force applying mechanism that applies a rotational force to the sprocket wheel 76 to rotate the sprocket wheel 76. 77 and is provided.

The traveling mechanism 74 causes the chain 73 to travel in the directions A and B by the rotation of the sprocket wheel 76 by the applied rotational force.

The rotational force applying mechanism 77 is rotatably supported at both ends by bearing plates 81 attached to the outer side wall portions 21 of the vertical frames 15 and 16, and is vertically supported by a rotating shaft 82 to which a sprocket wheel 76 is fixed. A wheel 83 for a ball chain fixed to a rotating shaft 82 on the frame 15 side, and an endless ball chain 84 that is wound around the wheel 83 and can hang down to the indoor side of the building and run manually. It is provided with a known ratchet mechanism (not shown) that temporarily prohibits the running of the ball chain 84 by a manual operation on the ball chain 84.

The rotational force applying mechanism 77 applies a rotational force to the wheel 83 based on the running of the ball chain 84 by manually operating the ball chain 84, and the outer side wall portions 21 of the vertical frames 15 and 16 are respectively provided via the bearing plate 81. The rotary shaft 82 rotatably attached to the wheel is rotated, and the rotation of the rotary shaft 82 applies a rotational force to the sprocket wheel 76.

The chain 73 hangs from the sprocket wheel 76 and has one end 71. The chain 73 is partially arranged in the holding groove 26 so as to be movable in the directions A and B, and hangs from the sprocket wheel 76 and has one end 72. In the other hanging portion 87 having the above, the holding groove 27 is partially movably arranged in the directions A and B, and in the hanging portion 88 hung around the sprocket wheel 76, the holding member attached to the bearing plate 81. The holding passages 90 between the 89 and the sprocket wheel 76 are movably arranged in directions A and B, and the holding grooves 26 and 27, the holding wall portions 29 and 30 forming the holding passage 90, and the holding member 89. Therefore, the chain 73 is prevented from bending, and the chain 73 is held in an inflexible state by the holding wall portions 29 and 30 and the holding member 89.

The transmission mechanism 75 has a traveling member 91 connected to one end 71 of the chain 73 so as to travel in the same directions A and B by traveling in the directions A and B of the chain 73, and a lowermost lateral side to the lowermost blade 8. At one end 93, the movable body 92, which is connected via the member 55 and the fixture 43 and is movable in the directions A and B, and the traveling member 91 are rotated in the R1 direction to allow the moving member 91 to descend with respect to the movable body 92. The rotary arm member 95, which is rotatably and linearly connected to the traveling member 91 and rotatably connected to the movable body 92 at the other end 94, and the traveling member 91 are stopped from descending to the movable body 92. Therefore, it is provided with a torsion spring 96 as an elastic imparting member that applies an elastic rotational force in the R2 direction that opposes the rotation of the rotary arm member 95 in the R1 direction to the rotary arm member 95.

The traveling member 91 is arranged in the holding groove 26 and fitted to the holding wall portion 29 so as to be movable in the directions A and B like the chain 73, and at the upper end portion to one end 71 of the chain 73. A main body 100 connected via a connecting tool 98 having a connecting pin 97 and a fastener 99, and a pin 102 fixed to the lower end of the main body 100 and having a huge head 101. There is.

The movable body 92 is supported by the frame body 3 so as to be linearly movable in the directions A and B, and the other end 94 of the rotating arm member 95 is rotatably connected to the linearly movable member 103, and the lowermost blade. A swingable member 105 that is connected to 8 via a horizontal member 55 and swingably connected to a linearly movable member 103 via a shaft member 104 in the R3 and R4 directions, and linearly moves at one end. It includes a coil spring 106 as an elastic body that is connected to the flexible member 103 and is connected to the swingable member 105 at the other end.

The linearly movable member 103 has a main body 111 extending in the vertical direction V arranged between the holding wall portions 29 and 30, and is mounted on the upper part of the main body 111 and is in rolling contact with the holding wall portion 30. The moving roller 112, the rolling roller 113 which is mounted on the lower part of the main body 111 and is in rolling contact with the side wall plate portion 25, and the rotating arm which is provided on the main body 111 between the rolling rollers 112 and 113. A pin 114 on which the other end 94 of the member 95 is rotatably mounted is formed on the main body 111 above the rotating arm member 95 so as to regulate rotation of the rotating arm member 95 in the R2 direction by contact. The contact portion 115, the support 118 which is fixed to the lower part of the main body 111 via a screw 117 and supports the swingable member 105 swingably, and the rotary arm member 95 in the R1 direction in a predetermined amount or more. A contact portion 116 formed on the support 118 below the rotating arm member 95 is provided so that rotation is defined by contact, and the support 118 is arranged on a shaft member 104 and a slit 121. A pin 119 is provided.

The swingable member 105 is integrally formed with the main body portion 122 having an arcuate slit 121 in which the end portion of the pin 119 is arranged and the other end of the coil spring 106 is connected to the main body portion 122. It also includes a folded-back portion 123 that is folded back together.

The swingable member 105 is swingably attached to the support 118 of the linearly movable member 103 in the main body portion 122 via the shaft member 104, and the lowermost front edge link member 51 at one end of the main body portion 122. It is rotatably connected to the lower end of the lower end and one end of the lowermost horizontal member 55 via a shaft member 54, and at one end of the folded-back portion 123, the lower end of the lowermost trailing edge link member 53 and the lowermost lateral member 53. It is rotatably connected to the other end of the member 55 via a shaft member 54.

The coil spring 106 rotates the swingable member 105 around the shaft member 104 fixed to the support 118 to move the swingable member 105 to the initial swing position, that is, as the blade 4 shows in FIG. The swingable member 105 is elastically pulled so as to be set to a position where the swingable member 105 is rotated in the R3 direction in the horizontal state as shown in FIGS. 5 and 6 without being rotated in the R4 direction in the vertical state. The swing (rotation) of the swingable member 105 centered on 104 is guided by the movement along the slit 121 of the pin 119, and the swing (rotation) of the swingable member 105 The range is defined by both ends of the slit 121.

At one end 93 of the wide end of the rotary arm member 95, an elongated hole 125 in which a pin 102 is rotatably fitted and linearly movably fitted along the longitudinal direction of the rotary arm member 95 is formed. The end 126 of the elongated hole 125 located on the other end 94 side is formed with a huge hole 127 into which the huge head 101 of the pin 102 can be inserted and removed, and the other end 94 of the rotary arm member 95 is the pin 114. Is rotatably connected in the R1 direction and the R2 direction.

The rotary arm member 95 moves the elongated hole 125 from the one end 93 side to the other end 94 side of the traveling member 91 in the rotation in the R1 direction within a range in which the pin 102 does not reach the huge hole portion 127. On the other hand, in rotation in the R2 direction, the pin 102 of the traveling member 91 is arranged in the linearly movable member 103 so as to move the elongated hole 125 from the other end 94 side of the rotating arm member 95 toward one end 93 side. There is.

The torsion spring 96 wound around the pin 114 is locked to the rotary arm member 95 at one end thereof and to the linearly movable member 103 at the other end, and the torsion spring 96 is locked in the R1 direction of the rotary arm member 95. It is arranged so as to apply an elastic rotational force in the R2 direction to the rotating arm member 95 against the rotation of the rotating arm member 95.

The transmission mechanism 75 may include a stopper (not shown) attached to the frame body 3 so as to come into contact with the lower portion of the linearly movable member 103 in the closed state of the opening 2.

In the transmission mechanism 75 that connects one end 71 of the hanging portion 86 hanging from the sprocket wheel 76 to the lowermost blade 8 in the chain 73 as a long body hung around the sprocket wheel 76 as a rotating body, the chain 73 When the lowermost blade 8 is lowered by traveling in the downward direction B and the lowermost blade 8 collides with a foreign object, for example, a person collides with the lowermost blade 8 and the lowermost blade 8 cannot be lowered, the traveling member 91 moves the movable body 92. During this lowering, the rotary arm member 95 rotates in the R1 direction against the elastic force of the torsion spring 96 from the position shown in FIG. 13 to the position shown in FIG. 16, so that the traveling member 91 is movable. The descent with respect to the body 92 is stopped by the elastic rotational force of the torsion spring 96 in the R2 direction, which gradually increases. Therefore, the transmission mechanism 75 resists the elastic force of the torsion spring 96 due to the relative vertical V displacement of the movable body 92 with respect to the traveling member 91 when an abnormality that prevents the lowermost blade 8 from descending occurs. The rotation of the rotary arm member 95 elastically prevents the lowermost blade 8 from descending. When the rotating arm member 95 rotates in the R1 direction by a predetermined amount or more, the contact portion 116 contacts the rotating arm member 95 to forcibly stop the rotation, and thus the traveling member 91 is movable. The descent with respect to the body 92 is forcibly stopped. Further, in the transmission mechanism 75, although the opening 2 is completely closed and the stopper comes into contact with the lower part of the linearly movable member 103, the operation of the chain 73 is not immediately stopped, and the chain 73 is slightly downward A. The rotary arm member 95 is designed to stop while rotating in the same manner as described above even when the vehicle is further traveled. In other words, the rotary arm member 95 is rotatable and linearly movable at one end 71 of the chain 73 via the traveling member 91. The connected rotary arm member 95 itself rotates about the pin 114 against the elastic force of the torsion spring 96 and directly moves with respect to the traveling member 91 so as not to cause further downward movement of the movable body 92. Therefore, there is no inconvenience that the all-extended link mechanism 5 is further extended or the completely closed blade 4 is further tilted, and damage to the link mechanism 5 and the blade 4 is avoided. Can be done.

In the state where the transmission mechanism 75 is arranged in the frame body 3, the huge head 101 of the pin 102 is not arranged in the huge hole 127 of the elongated hole 125, so that the rotating arm member 95 is a traveling member. When the traveling member 91 and the movable body 92 of the transmission mechanism 75 are taken out from the frame body 3 without being unintentionally dropped from the 91, the mutual positions of the traveling member 91 and the movable body 92 can be freely changed. Therefore, the huge head 101 of the pin 102 can be easily inserted and removed from the huge hole 127 of the elongated hole 125.

The elevating mechanism 9 is of the plurality of blades 4 via the transmission mechanism 75 by traveling in the directions A and B of the chain 73 by the rotation of the wheel 83 and the sprocket wheel 76 via the rotating shaft 82 by the manual operation of the ball chain 84. The lowest blade 8 is moved up and down, and thus the plurality of blades 4 are moved up and down in advance of the lowest blade 8, and the lifting mechanism 9 is folded according to the number of blades 4 to be moved up and down. Front edge link member 51, trailing edge link member 53, and the number of lateral members 55 attached thereto, and blades 4, which increase or decrease according to the difference in length between the hanging portion 86 and the hanging portion 86 of the traveling chain 73, and the front edge link. The load in the direction B of the member 51, the trailing edge link member 53, the lateral member 55, and the chain 73 is applied to one end 71 of the hanging portion 86 of the chain 73.

The reaction force generating mechanism 10 is connected to one end 72 of the other hanging portion 87 hanging from the sprocket wheel 76 in the chain 73 wound around the sprocket wheel 76 at one end 131 via the connecting mechanism 132 and is flexible. The moving portion of the no-back chain 133 as a long weight and the no-back chain 133 that moves in the same direction B according to the traveling in the direction B of the other hanging portion 87 hanging from the sprocket wheel 76 in the chain 73. It is provided with a support plate 135 as a support that accommodates the 134 and supports the moving portion 134.

The connecting mechanism 132 is rotatably attached to the connecting plate 143 attached via the shaft pin 141 of the chain element at one end 72 of the chain 73 and its fastener 142, and is rotatably attached to the connecting plate 143 and is directed toward the holding groove 28. A pincushion-shaped piece member 144 movably arranged in A and B is provided, and a chain element at one end 131 of the no-back chain 133 is fixed to the connecting plate 143.

The no-back chain 133 is composed of a chain element train in which chain elements as a plurality of weight elements having the same mass are rotatably connected to each other so as to be able to bend (bend) in only one direction in series. The load of each chain element of the no-back chain 133 is the load of the blade 4 that increases each time the chain element is accommodated in the support plate 135 or drawn out from the support plate 135, and the front edge link member 51 and the trailing edge link member 53. The chain 73 is set to correspond to the total load of the load of the chain 73 and the load of the lateral member 55 accompanying the load, but corresponds to the difference in length between the hanging portion 86 and the hanging portion 86 of the chain 73 which increases or decreases. It may be set in consideration of the load of.

The support plate 135 bridges the upper portions of the vertical frames 15 and 16 and is fixed to the upper portion at each end, and the other end 145 of the no-back chain 133 that can bend only to one side. The chain element of the above is fixed to the support plate 135, and the moving portion 134 of the no-back chain 133 supported by the support plate 135 moves in the direction A below the hanging portion 87 hanging from the sprocket wheel 76 in the chain 73. Is pulled out from the support plate 135 and the support on the support plate 135 is gradually released, so that the reaction force generating mechanism 10 is applied to the end 71 of the chain 73 in the direction B. The load in the direction B transmitted to one end 72 of the chain 73 via the chain 73 is drawn from the support plate 135 in the no-back chain 133 as a reaction force in the direction A opposite to the direction B. A load in the direction A of the drawer portion 146 is applied to one end 72 of the chain 73 via the connecting mechanism 132.

The tilt mechanism 11 is provided on the rotating shaft 82 so as to be swingable (rotatable) about the rotating shaft 82 with respect to the rotating shaft 82 via the bearing 151, and the recess 152 and the protrusion 153. A swingable member 61 having a recess 154, a protrusion 154 attached to the chain 73 and fitting into the recess 152 when traveling in the direction B of the chain 73, and a recess 155 are shown in FIGS. 8 and 17. As shown in FIG. 8, when the protrusion 154 is not fitted to the recess 152, the protrusion 155 engages with the protrusion 153 to prohibit swinging (rotation) of the swingable member 61 around the rotation shaft 82. While the swing prohibition state is set as shown, as shown in FIG. 18, when the protrusion 154 is fitted to the recess 152, it is rotated by the protrusion 154 to release the engagement of the recess 155 with the protrusion 153 and swing. An elastic force is applied to the latch member 156 set to the swing allowable state shown in FIG. 18 and the latch member 156 to be set to the swing prohibition state so as to allow the movable member 61 to swing. It is provided with elastic means 157.

The swingable member 61 is arranged concentrically with the sprocket wheel 76, and the latch member 156 having the claw portion 161 (see FIG. 17) at one end is attached to the support plate 164 via the shaft member 163 at the other end 162. The support plate 164 is rotatably attached around the shaft member 163, the support plate 164 is attached to the upper end of the vertical frame 15 between the swingable member 61 and the sprocket wheel 76, and the elastic means 157 is attached at one end. It is locked to the support plate 164, locked to the latch member 156 at the other end, and consists of a torsion coil spring whose central portion is wound around the shaft member 163 and arranged, and the latch member 156 is rotated around the shaft member 163. An elastic force is applied to the latch member 156 so that the claw portion 161 faces the recess 152.

As shown in FIG. 18, the tilt mechanism 11 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 the direction B of the chain 73, and the recess of the protrusion 153. The engagement with the place 155 is released, and by this release, the swingable member 61 is swung as shown in FIG. 19 with the movement of the protrusion 154, and the swingable member 61 is pulled upward by the swing through the string-like body 70. A series of trailing edge link members 53 are raised relative to the series of leading edge link members 51 against the elastic force of the coil spring 106, while a series of leading edges are lowered via a string-like body 66 that is lowered. A horizontal member connected to the front edge link member 51 and the trailing edge link member 53 so that the link member 51 is lowered relative to the series of trailing edge link members 53 and the opening 2 is closed by each blade 4. Each blade 4 is synchronously tilted in a vertical state as shown in FIG. 22 via 55. When the opening 2 is closed by each of the blades 4, the swingable member 105 is swung in the R4 direction from the position shown in FIG. 14 to the position shown in FIG.

A sprocket wheel on the vertical frame 16 side, which is configured in the same manner as the sprocket wheel 76, is fixed to the rotating shaft 82 extending from the vertical frame 15 to the vertical frame 16, and the blind device 1 also has a vertical frame on the vertical frame 16 side. It is configured in the same way as the 15 side.

In the above blind device 1, in a state where the plurality of blades 4 are vertically tilted so as to close the opening 2 as shown in FIG. 22, the protrusion 154 provided on the chain 73 is as shown in FIG. The protrusion 153 and the recess 155 are disengaged from each other by being arranged in the recess 152, and the latch member 156 comes into contact with the outer peripheral edge 165 of the swingable member 61 to contact the swingable member 61. The swing permissible state is maintained. In such a state, when a manual operation is performed for traveling in one direction of the ball chain 84, the sprocket wheel 76 is rotated via the wheel 83 and the rotating shaft 82, and the chain 73 is traveled in the direction A by this rotation. As the chain 73 travels in the direction A, the protrusion 154 also moves about the rotation shaft 82, the swingable member 61 also rotates in the same direction due to the movement of the protrusion 154, and this rotation of the swingable member 61 causes a string shape. 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 via the body 66 are relative to the series of trailing edge link members 53. While being raised, the elastic force of the coil spring 106 is formed by the uppermost trailing edge link member 53 and the lower series of trailing edge link members 53 connected below the uppermost trailing edge link member 53 via the string-like body 70. As a result of being lowered relative to the series of front edge link members 51 with the assistance of the plurality of blades 4, the plurality of blades 4 are synchronously tilted to a substantially horizontal state as shown in FIG. When the plurality of blades 4 are brought into a substantially horizontal state, the swingable member 105 is swung in the R3 direction from the position shown in FIG. 20 to the position shown in FIG.

Further, when the chain 73 travels in the direction A, the protrusion 154 starts 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. It is rotated and the protrusion 153 and the recess 155 are engaged as shown in FIGS. 8 and 17, and this engagement prevents the swingable member 61 from rotating. As the one end 71 of the chain 73 rises as the chain 73 continues to travel in the direction A, the lower front edge link member 51 of the link mechanism 5 connected to the one end 71 of the chain 73 via the transmission mechanism 75. And the trailing edge link member 53 begins to be folded, and by this folding, a plurality of blades 4 connected by the link mechanism 5 are sequentially overlapped from below, and all of the plurality of blades 4 are raised. Due to the collision of the connecting plate 143 with the stopper (not shown) which is overlapped with each other and provided on the outer side wall portion 21, the manual operation for traveling in one direction of the ball chain 84 is prohibited, and if necessary, the manual operation for the ball chain 84 is prohibited. The open state of the opening 2 is maintained by the operation of the ratchet mechanism.

As a result of traveling in the direction A of the chain 73, one end 131 of the no-back chain 133 connected to one end 72 of the chain 73 via a connecting mechanism 132 is pulled by one end 72 of the chain 73 and travels in the same direction A. The moving portion 134 of the no-back chain 133 supported by the support plate 135 is pulled out from the support plate 135, and the load in the direction A of the pulled out moving portion 134 is gradually applied to one end 72 of the chain 73. The load in the direction A of the added drawer portion 146 acts as a reaction force to the increasing load in the direction B of the blade 4, the front edge link member 51, the trailing edge link member 53, and the lateral member 55. Therefore, the traveling of the chain 73 in the direction A can be assisted, the manual force on the ball chain 84 can be reduced, and the opening 2 can be opened with a light manual operation force.

When the ball chain 84 is manually operated in the reverse direction of the above when the ratchet mechanism is released in the open state of the opening 2, the chain 73 travels in the direction B, and this travel causes the upper front edge link member 51 and the trailing edge link. The member 53 is sequentially released from folding and begins to be extended, whereby the overlapping of the plurality of blades 4 is sequentially released from the upper blade 4. When all the link mechanisms 5 are extended and all of the plurality of blades 4 are also released from their overlap, the protrusions 154 are fitted into the recess 152 through the guide wedge space 166 as shown in FIG. The protrusion 154 rotates the latch member 156 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 swingable member 61 to rotate as the protrusion 154 moves. The trailing edge link member 53 is raised relative to the front edge link member 51 via a string-like body 70 that is pulled upward by this rotation, and is lowered through the string-like body 66 that is lowered. The front edge link member 51 is lowered relative to the trailing edge link member 53, the plurality of blades 4 are rotated synchronously, and the opening 2 is tilted in the vertical direction as shown in FIG. 22. It is closed by the plurality of blades 4 of the above. After that, due to the collision of the connecting plate 143 with the stopper (not shown) provided on the outer side wall portion 21, the manual operation for traveling in one direction of the ball chain 84 is prohibited, and if necessary, the ratchet mechanism by the manual operation for the ball chain 84 is prohibited. The closed state of the opening 2 is maintained by the operation of.

By temporarily stopping the running of the ball chain 84 by the ratchet mechanism during the opening and closing of the opening 2, the opening 2 can be half-opened by the plurality of blades 4.

In the traveling in the direction B of the chain 73, one end 131 of the no-back chain 133 is pushed by the one end 72 of the chain 73 and travels in the same direction B, and as a result, the drawer portion 146 of the no-back chain 133 hanging from the support plate 135. Is accommodated toward the support plate 135 and is sequentially supported by the support plate 135, and the load in the direction A of the drawer portion 146 applied to one end 72 of the chain 73 by the support of the moving portion 134 to the support plate 135 is The blade 4, the front edge link member 51, the trailing edge link member 53, and the lateral member 55 gradually decrease with the decreasing load in the direction B, and thus the ball chain 84 does not interfere with the running of the chain 73 in the direction B. It becomes possible to close the opening 2 with a light constant manual operation force without affecting the manual force against the force.

As described above, in the blind device 1 of this example, the elevating mechanism 9 moves the lowermost blade 8 up and down in the vertical direction V by the reaction force applied by the reaction force generating mechanism 10 and the ball chain 84 of the rotational force applying mechanism 77. It is performed by an elevating force applied to the elevating mechanism 9 from the outside, and the moving portion 134 of the no-back chain 133 supported by the support plate 135 hangs from the sprocket wheel 76 in the chain 73. It is pulled out from the support plate 135 as it travels in the direction A below the portion 87, and the support on the support plate 135 is gradually released. The reaction force generation mechanism 10 is supported by the no-back chain 133. As a result of applying the load of the drawer portion 146 pulled out from the plate 135 to the elevating mechanism 9 as a reaction force, the number of blades 4 that can be raised at the opening by the plurality of blades 4 of the opening 2 increases. However, the elevating force applied to the elevating mechanism 9, that is, the opening by the plurality of blades 4 of the opening 2 can be performed with a substantially constant manual operating force without increasing the manual operating force on the ball chain 84 of the operator. The difficulty of manual operation by the operator can be eliminated.

Further, in the blind device 1 of this example, the end portion 126 of the elongated hole 125 located on the other end 94 side of the rotary arm member 95 is formed with the huge hole portion 127 into which the huge head 101 of the pin 102 can be inserted and removed. Therefore, the rotary arm member 95 can be easily connected and disconnected, and maintenance and inspection can be facilitated in addition to manufacturing and assembling the device.

In the blind device 1, when the rotary arm member 95 rotates in the R1 direction, the pin 102 of the traveling member 91 does not reach the huge hole 127 from one end 93 side to the other end 94 side of the rotary arm member 95. Since the elongated holes 125 are arranged so as to move, there is a possibility that the pin 102 may come off from the huge hole portion 127 when the traveling member 91 is displaced in the vertical direction V with respect to the movable body 92 based on the traveling of the chain 73. On the other hand, when the traveling member 91 and the movable body 92 are taken out from the blind device 1, the rotating arm member 95 is inserted and removed from the huge hole portion 127 of the elongated hole 125 by inserting and removing the huge head 101 of the pin 102. Can be easily connected to and disconnected from the traveling member 91.

In the blind device 1 of the above example, the no-back chain 133 and the support plate 135 are provided to form the reaction force generating mechanism 10, but instead of this, another rotating body equivalent to the sprocket wheel 76 and other rotating bodies are used. The reaction force generation mechanism 10 may be configured by being wound around the rotating body of the above and having a long weight having the same flexibility as the chain 73 or the no-back chain 133. In the chain 73 wound around the sprocket wheel 76, one end 71 of the hanging portion 86 hanging from the sprocket wheel 76 is connected to the lowermost blade 8 of the plurality of blades 4, and the other rotation. One end of the droop that hangs from the other rotating body with the same weight as the chain 73 or no-back chain 133 wrapped around the body hangs from the sprocket wheel 76 in the chain 73 wrapped around the sprocket wheel 76. One end of the other sprocket, which is connected to one end 72 of the other sprocket 87 and hangs from the other sprocket in the weight wound around the other sprocket, is a free end. The reaction force generation mechanism 10 receives the load of one hanging portion hanging from the other rotating body on the weight wound on the other rotating body and the weight wound on the other rotating body from the other rotating body. The difference from the load of the other hanging sprocket may be applied to the elevating mechanism 9 as a reaction force.

Further, in the blind device 1, the lowest blade 8 of the plurality of blades 4 in the opening 2 is raised in advance in the vertical direction V to open the opening 2, while the lowest blade 8 is preceded. Then, the opening 2 is closed by lowering the blade. For example, as described in Japanese Patent Application Laid-Open No. 2011-132806, the lowest blade 8 among the plurality of blades is placed under the frame 3. It is connected and fixed to the frame 19, and in the open state of the opening 2, a plurality of blades 4 are arranged so as to overlap each other below the opening 2, and when the opening 2 is closed, the plurality of blades 4 overlapped with each other in the opening 2. The uppermost blade 6 is raised in advance in the vertical direction V of the blades 4, and the lowermost blade 4 is raised one after another via the link mechanism 5 by the rise of the uppermost blade 6. While closing the opening 2, when opening the opening 2, the uppermost blade 6 is lowered in advance, and the lowermost blade 6 is lowered and remains along with the link mechanism 5 one after another. The blade 4 may be lowered to open the opening 2, and in such a blind device, one hanging portion 86 hanging from the sprocket wheel 76 in the chain 73 is suspended as described above. It will also serve as the function of mechanism 7.

Further, as the connecting mechanism, instead of the link mechanism 5 which connects the end portions 42 in the longitudinal direction of the blade main bodies 41 adjacent to each other in the vertical direction V and includes the front edge link member 51, the trailing edge link member 53, and the like. A hinge configured to rotatably connect the upper and lower longitudinal edges of the blade main bodies 41 adjacent to each other in the vertical direction V and to specify the alternating folding direction (rotation direction) of the blade main bodies 41 connected to each other. In addition, as the opening opening / closing device, as shown in FIG. 23, a plurality of blade main bodies 41 connected to each other by the hinge mechanism 171 of the above type may be used instead of the blind device 1. A series of blades 4 made of the above are folded and housed in the lower frame 19 of the frame body 3, and the blades 4 at one end of the series of blades 4 housed and folded in the lower frame 19 are housed in the chain 73 of the elevating mechanism 9. The shutter device 173 may be connected to one end 71 of the hanging portion 86 hanging from the sprocket wheel 76, and also in the present shutter device 173, the vertical V of the blade 4 is raised and lowered by the reaction force generation mechanism 10. The reaction force and the elevating force applied to the elevating mechanism 9 from the outside by the ball chain 84 of the rotational force applying mechanism 77 are used. In such a shutter device 173, the tilt mechanism 11 can be omitted.

As the opening opening / closing device, instead of the shutter device 173 shown in FIG. 23, as shown in FIG. 24, a plurality of blades 4 in the opening 2 are simultaneously raised and lowered to open / close the opening 2. The shutter device 201 may be the same as the above, and the shutter device 201 having the frame body 3 (see FIG. 1) defining the opening 2 and the plurality of blades 4 as described above includes a coupling mechanism 202 for connecting the blades 4 to each other and a plurality of the blades 4. The rotatable winding member 203 that winds up the blades 4 of the blade 4 and the direction of the load of the blades 4 in the opening 2 is opposite to the direction of the load of the blades 4 while increasing according to the change in the number of blades 4 raised in the opening 2. It is provided with a reaction force generation mechanism 204 that generates a reaction force.

The connecting mechanism 202 comprises an interlocking type connecting mechanism or an overlapping type connecting mechanism known by known interlocking type blades (slats) or overlapping type blades (slats). One of the pair of blades 4 connected to each other and adjacent to one of the blades 4 is prohibited from rotating about 180 ° with respect to the connection mechanism 202 of the other blade 4 as an axis, while rotating approximately 360 °. The other rotation up to is allowed, and the bending of the plurality of blades connected to each other by about 180 ° or more is directed.

The take-up member 203 arranged in the upper frame 17 between the vertical frames 15 and 16 is from a cylindrical body rotatably attached to the rotating shaft 82 around the axis 206 of the rotating shaft 82 in the directions A and B. By rotating the direction A in closing the opening 2, the plurality of blades 4 in the opening 2 are wound one after another from the uppermost blade 6 side, while the direction in the opening of the opening 2. By the rotation of B, the wound blade 4 is fed out from the lowermost blade 8 side to the opening 2, and the winding member 203 is the most of the plurality of blades 4 connected to each other. One edge of the upper blade 6 is fixed.

The reaction force generation mechanism 204 arranged in the vertical frame 15 has a chain 211 as a flexible and long weight that can travel freely, and the chain 211 is wound around the chain 211 and the directions A and B of the chain 211. A sprocket wheel 212 as a rotating body rotatably attached to a rotating shaft 82 in directions A and B so that it can be rotated in directions A and B during traveling, and a hanging portion 213 which hangs from the sprocket wheel 212 in the chain 211. The movement of directions A and B in the opening 2 is transmitted to the lowest blade 8 of the plurality of blades 4 in the opening 2, while the movement of the directions A and B of the plurality of blades 4 in the opening 2 is transmitted to the sprocket 213. A connecting mechanism 214 that connects one end of the lower end of the hanging 213 to the lowermost blade 8 of the plurality of blades 4 in the opening 2, and an unintended bending and chain in the hanging 213 of the chain 211. The sprocket wheel 212 of the 211 is provided with a prohibition mechanism 216 for prohibiting an unintended radial protrusion at the winding portion 215.

The chain 211 is composed of a chain element train in which chain elements as a plurality of weight elements having the same mass are rotatably connected to each other in series, and the other hanging portion hanging from the sprocket wheel 212 in the chain 211. One end of the 221 is a free end, and the chain 211 has a length of the hanging 221 equal to the length of the hanging 213 when the opening 2 is completely closed by the plurality of blades 4. Thus, the chain 211 is hung around the sprocket wheel 212, so that the chain 211 has directions A and B in the hanging 213 and the hanging 221 when the opening 2 is completely closed by the plurality of blades 4. It is designed not to cause the movement of each.

The sprocket wheel 212 rotatably attached to the rotating shaft 81 in the directions A and B meshes with the chain 211 at the winding portion 215.

The connecting mechanism 214 is fixed to the lower end of the hanging portion 213 at one end and to the lateral end of the lowermost blade 8 of the plurality of blades 4 whose other end closes the opening 2, and also has a slit 32. The connecting rod 225 that has passed through is provided, and the manual lifting and lowering movements of the lowermost blade 8 of the plurality of blades 4 are transmitted to the lower end of the hanging 213, while the directions A and B of the hanging 213 are transmitted. The movement of the blade 4 is transmitted to the lowest blade 8 of the plurality of blades 4.

The prohibition mechanism 216 is arranged along the hanging portion 213 and the winding portion 215 and is attached to the outer side wall portion 21, and the hanging portion 216 is interposed in cooperation with the guide plate 226 to sandwich the hanging portion 213. It is provided with one guide plate 227 arranged along 213 and attached to the outer side wall portion 21, and the guide plates 226 and 227 facing each other with a gap form a running path of the hanging 213 in the gap. The guide plate 226 and the sprocket wheel 212, which face each other with a gap, form a running path of the winding portion 215 at the gap, and the guide is regulated by such a running path to guide the chain 211 to the hanging portion 213. The winding portion 215 is designed to travel and move in the directions A and B.

The reaction force generation mechanism 204 may also be provided on the vertical frame 16 side, and in the shutter device 201 of this example, the lowermost blade 8 of the plurality of blades 4 is manually and by the reaction force generation mechanism 204. When the blades 4 connected to each other at the opening 2 are bent in the front-rear direction when the blades 4 are lifted and raised, the plurality of blades 4 wound up by the winding member 203 are formed on the winding member 203. The take-up member 203 regulates the displacement of both side ends of the plurality of blades 4 in the opening 2 in the front-rear direction and guides the movement of the vertical V of the both side ends in the opening 2 so as not to bulge outward in the radial direction. Guidance restricting members (not shown) for guiding the winding of the plurality of blades 4 to the vertical frames 15 and 16 are provided on the inner side wall portions 22 and the upper frame 17, respectively.

In the above shutter device 201, in a state where the opening 2 is completely closed by the plurality of blades 4, the lowest blade 8 of the plurality of blades 4 that closes the opening 2 is manually lifted in the direction A. Then, the plurality of blades 4 in the opening 2 are simultaneously raised to gradually open the opening 2, and at the same time, the lower end of the hanging portion 213 is also moved in the direction A via the connecting mechanism 214. The hanging 213 is also driven in the direction A, and the rotation of the sprocket wheel 212 in the direction A of the hanging 213 causes the hanging 221 to be moved in the same direction A, and one end of the hanging 221 which is a free end. The sides begin to stack within the lower frame 19. One end of the free end of the hanging 221 begins to stack in the lower frame 19, while when the lower end of the hanging 213 is moved in direction A, it hangs compared to the load in direction B based on the mass of the hanging 213. The load in the direction A based on the mass of the portion 221 gradually increases, and the force in the direction A based on the gradually increasing load difference is the lowest of the plurality of blades 4 that close the opening 2 via the connecting mechanism 214. The rise of the plurality of blades 4 in the opening 2 is transmitted to the blades 8 of the above, and the force in the direction A based on the increasing load difference from the reaction force generating mechanism 204, that is, the plurality of blades in the opening 2. It is designed to be performed by a reaction force in the direction opposite to the load of 4.

Then, in the shutter device 201, since the plurality of blades 4 in the opening 2 are taken up by the winding member 203 as they rise, the load of the plurality of blades 4 in the opening 2 gradually decreases, and as a result, the opening The plurality of blades 4 in 2 are rapidly raised and wound by the winding member 203 without applying a large manual force to the lowest blade 8 of the plurality of blades 4, and the opening 2 is opened. , The opening operation of the opening 2 is stopped by, for example, the collision of the connecting rod 225 with a stop mechanism (not shown), whereby the opening state of the opening 2 is maintained. become.

When the lowermost blade 8 hanging from the take-up member 203 of the plurality of blades 4 taken up by the take-up member 203 is manually pulled down in the direction B while the opening 2 is completely opened, As a result of the lower end of the hanging 213 being pulled down and moved in the direction B via the connecting mechanism 214, the load in the direction A based on the mass of the hanging 221 is compared with the load in the direction B based on the mass of the hanging 213. While gradually decreasing, the descending force in direction B increases based on the increase in the number of blades 4 unwound from the take-up member 203, and the load in direction A based on the mass of these hanging 221s decreases and the number of blades 4 increases. By increasing the descent force of direction B based on the increase of, the gradually reduced manual pulling force of direction B can bring the opening 2 to a closed state, and finally, of the lowermost blade 8. The contact with the lower frame 19 completely closes the opening 2.

As described above, according to the shutter device 201, it is possible to eliminate the difficulty of manual operation by the operator in both opening and closing of the opening 2.

In the shutter device 201, both the take-up member 203 and the sprocket wheel 212 are rotatably attached to the rotating shaft 82, but one of the take-up member 203 and the sprocket wheel 212 is fixed to the rotating shaft 81 while the other. May be rotatably attached to the rotating shaft 81. In this case, when the other of the take-up member 203 and the sprocket wheel 212 is attached to the rotating shaft 82 with appropriate sliding friction, the take-up member 203 and the sprocket wheel are attached. The rotation of one of the 212 can be transmitted to the other of the take-up member 203 and the sprocket wheel 212 by an appropriate frictional force to assist the rotation of the other of the take-up member 203 and the sprocket wheel 212. , The difference between the rotation amount of one of the take-up member 203 and the sprocket wheel 212 and the rotation amount of the other of the take-up member 203 and the sprocket wheel 212 is rotated with the other of the take-up member 203 and the sprocket wheel 212. It is preferable because it can be eliminated by slipping with the shaft 82.

Further, in the shutter device 201, when both the winding member 203 and the sprocket wheel 212 are rotatably attached to the rotating shaft 82, the rotating shaft 82 is a fixed shaft fixed to each of the vertical frames 15 and 16 at one end. In addition, the chain 211 may have chain elements having different masses connected in series in order of mass magnitude instead of a chain element train in which chain elements having the same mass are connected in series. It may be a chain element train, and in addition, the hanging portion 221 may be shorter than the hanging portion 213 in a state where the opening 2 is completely closed by the plurality of blades 4.

1 Blind device 2 Opening 3 Frame body 4, 6, 8 Blades 5 Link mechanism 7 Suspension mechanism 9 Elevating mechanism 10 Reaction force generation mechanism 11 Tilt mechanism 72 One end 73 Chain 76 Sprocket wheel 86, 87 Hanging 131 One end 132 Connecting mechanism 133 No-back chain 134 Moving part 135 Support plate

Claims (19)

A plurality of blades juxtaposed with each other in the vertical direction, a connecting mechanism for connecting adjacent blades in the vertical direction among the plurality of blades, and a reaction force having a direction opposite to the load direction of the blades. It is equipped with a reaction force generating mechanism that generates the above, and the blades are raised by at least the increasing reaction force from the reaction force generating mechanism .
A lifting mechanism for raising and lowering a plurality of blades is further provided, and the reaction force generating mechanism applies a reaction force that increases in response to an increase in the load of the blades to the lifting mechanism. The blades are raised by at least the reaction force applied by the reaction force generation mechanism .
The elevating mechanism includes a long body, a traveling mechanism for traveling the long body, and a transmission mechanism for transmitting the traveling of the long body to the blades, and the traveling mechanism travels on the long body by rotation. The transmission mechanism is provided with a rotating body to be made to hang, and one end of the hanging portion of the long body that hangs down from the rotating body is connected to a blade, and the reaction force generating mechanism hangs down from the rotating body in the long body. The moving part of the weight that is connected to the other hanging part at one end and the moving part of the weight that moves according to the upward running of the other hanging part that hangs down from the rotating body in the long body is accommodated. open closing device that not include a support for supporting. The switchgear according to claim 1 , wherein the elevating mechanism raises the blades not only by a reaction force but also by an externally applied ascending force. The switchgear according to claim 1 or 2 , wherein the reaction force generating mechanism applies a reaction force that decreases in response to a decrease in the load of the blades to the elevating mechanism. A claim that the moving portion of the weight is pulled out from the support as the other hanging portion of the long body hangs down from the rotating body, and the support by the support is gradually released. The switchgear according to any one of 1 to 3 . The switchgear according to any one of claims 1 to 4, wherein the reaction force generating mechanism applies a load of a drawer portion drawn from a support to the elevating mechanism as a reaction force. A plurality of blades juxtaposed with each other in the vertical direction, a connecting mechanism for connecting adjacent blades in the vertical direction among the plurality of blades, and a reaction force having a direction opposite to the load direction of the blades. It is equipped with a reaction force generating mechanism that generates the above, and the blades are raised by at least the increasing reaction force from the reaction force generating mechanism.
A lifting mechanism for raising and lowering a plurality of blades is further provided, and the reaction force generating mechanism applies a reaction force that increases in response to an increase in the load of the blades to the lifting mechanism. The blades are raised by at least the reaction force applied by the reaction force generation mechanism.
The elevating mechanism includes a long body, a traveling mechanism for traveling the long body, and a transmission mechanism for transmitting the traveling of the long body to the blades, and the traveling mechanism includes the first rotating body. The transmission mechanism connects one end of the hanging part of the long body that hangs down from the first rotating body to the blade, and the reaction force generating mechanism includes the second rotating body and the weight. One end of the hanging part of the weight that hangs down from the second rotating body is connected to one end of the other hanging part that hangs down from the first rotating body in the long body. one end of the other downwardly extending portion extending downward from the second rotary body in weight, open closing device that has a free end. The switchgear according to claim 6 , wherein the elevating mechanism raises the blades not only by a reaction force but also by an externally applied ascending force. The switchgear according to claim 6 or 7 , wherein the reaction force generating mechanism applies a reaction force that decreases in response to a decrease in the load of the blades to the elevating mechanism. The reaction force generation mechanism is an elevating mechanism that uses the difference between the load of one hanging portion hanging from the second rotating body on the weight and the load of the other hanging portion hanging from the second rotating body on the weight as a reaction force. The switchgear according to any one of claims 6 to 8 , wherein the switchgear is attached to the device. The switchgear according to any one of claims 1 to 9, wherein the weight is a no-back chain. The invention according to any one of claims 1 to 10, wherein the uppermost blade is raised in advance in the vertical direction among the plurality of blades, while the uppermost blade is lowered in advance. Switchgear. The invention according to any one of claims 1 to 10, wherein the lowest blade among the plurality of blades is raised in advance in the vertical direction, while the lowest blade is lowered in advance. Switchgear. The switchgear according to any one of claims 1 to 12, wherein the switchgear is a blind device. A plurality of blades juxtaposed with each other in the vertical direction, a connecting mechanism for connecting adjacent blades in the vertical direction among the plurality of blades, and a reaction force having a direction opposite to the load direction of the blades. It is equipped with a reaction force generating mechanism that generates the above, and the blades are raised by at least the increasing reaction force from the reaction force generating mechanism.
It is designed to raise and lower multiple blades ,
The reaction force generation mechanism is such that the weight, the rotating body around which the weight is wound, and the rising of the blades are transmitted to the one hanging from the rotating body by the weight. It is equipped with a connecting mechanism that connects the blades to the blade .
One end of the other downwardly extending portion extending downward from the rotating member in weight, open closing device that has a free end. A winding member is further provided, and a plurality of blades are wound by the winding member one after another from the highest blade, while the blades wound by the winding member are wound from the winding member. The opening / closing device according to claim 14, which is designed to be fed out. The switchgear according to claim 15, wherein the reaction force generating mechanism generates a reaction force that increases as the number of blades wound around the winding member increases. The switchgear according to any one of claims 14 to 16, wherein the connecting mechanism connects one end of the hanging portion to the lowest blade among the plurality of blades. Any of claims 14 to 17, wherein the other hanging portion of the weight that hangs from the rotating body has a mass equal to or larger than the mass of one hanging portion of the weight that hangs down from the rotating body. The switchgear according to item 1 . The switchgear according to any one of claims 1 to 12 and 14 to 18 , which is a shutter device.

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