JP3480151B2 - Blind equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blind device arranged in an opening such as a window of a building and used for opening and closing the opening.

[0002]

In this type of blind device, a rotary shaft is generally provided in the upper part of the opening by bridging the left and right vertical frames, and sprocket wheels are attached to both ends of the rotary shaft. A chain, which is one of long bodies, is hung on each sprocket wheel, and a link mechanism supporting each end of a large number of slats is connected to the chain, and a rotary mechanism is operated by the operation of a drive mechanism such as an electric motor. When is rotated, each sprocket wheel is rotated and the chain travels, and the traveling of the chain raises and lowers many slats via the link mechanism, thus opening and closing the openings such as windows of the building. It is supposed to do. In such a conventional blind device, the chain is usually held in the guide passage and kept in an inflexible state so that the slats are not easily lifted and the opening is not opened for crime prevention after completion of closing. Even if the slat at the bottom is lifted, the link mechanism cannot be folded.

By the way, it is urgent to escape from the building in the event of a disaster such as a fire or an earthquake in which the opening of the opening due to chain traveling cannot be done in time and the supply of electric power necessary for chain traveling cannot always be expected. in case of,
As described above, it is extremely inconvenient if the opening is not opened from the viewpoint of crime prevention, and the blind device is required to be able to easily and quickly open the opening manually. It

The present invention has been made in view of the above points, and an object of the present invention is to manually open a closed opening when an emergency is required without deteriorating the crime prevention function. Therefore, it is an object of the present invention to provide a blind device that can be opened easily and quickly.

[0005]

In order to achieve the above object, according to the present invention, a foldable link device, a plurality of slat support mechanisms connected to the link device, and each of the slat support mechanisms are provided. A supported slat, and a link folding and extension mechanism that is connected to the lower portion of the link device to fold and extend the link device, and a release mechanism that releases the connection of the link folding and extension mechanism to the lower portion of the link device. The link folding and extending mechanism includes a flexible elongated body, a deflection preventing unit that prevents the elongated body from deflecting, a traveling device for traveling the elongated body, and a linking device for the elongated body. And a releasing mechanism for releasing the connection of the elongated body to the lower part of the link device by the connecting means and the liftable actuating rod juxtaposed to the slat. As such, the blind device is provided that includes a transmission mechanism for transmitting to the coupling means the lifting of the actuating bar.

According to the present invention, in order to achieve the above object, one end is connected to a lower part of a link device through a connecting means so as to be vertically movable, and a slit extending in the vertical direction is formed. There is provided the above-described blind device, in which the release mechanism further includes a base and a slider vertically movable on the base, and one end of the operating rod is attached to the slider through the slit.

Further, according to the present invention, in order to achieve the above object, a first arm rotatably connected to the actuation rod at one end and a first arm rotatably connected to the first arm at one end. And the transmission mechanism includes a second arm rotatably supported on the base at the other end, so that the lifting of the actuation rod is transmitted to the connecting means via the first and second arms. The blind device is provided in which the second arm is connected to the connecting means.

Further, according to the present invention, in order to achieve the above object, the connecting means includes a movable body connected to a lower portion of the link device, a rotatable shaft connected to the transmission mechanism, and a rotating body. A hook member that is attached to the driving shaft and has a hook at one end, and a hook that is detachable from the movable body and that is engaged with the hook of the hook member and that is connected to one end of the elongated body. There is provided a blind device as described above comprising a member.

Further, according to the present invention, in order to achieve the above object, the release mechanism further comprises a holding means for holding the released state, and the holding means holds the holding position of the lifting position of the operating rod. The holding mechanism is rotatably provided to the release mechanism, and has an arm having an engaging portion at one end, and engages with the engaging portion of the arm in one rotating state of the arm. An engaging member having an arranged engaging portion, elastic means for urging the arm to one rotation state, and transition of the arm to one rotation state by the elastic means when the actuation rod is lifted. And means for preventing the transition of the arm to the one rotation state by the elastic means when the actuating rod is not lifted up.

In the above-mentioned blind device, in a preferred example, the link device comprises first and second link mechanisms, and the first link mechanism is a plurality of first rotatably connected to each other in series. The second link mechanism includes a plurality of second link members that are rotatably connected to each other in series, and one end of the slat support mechanism has a first link member. Of the slat support mechanism, the other end of the slat support mechanism is rotatably coupled to every other coupling portion of the second link member. , Is rotatably connected to every other connecting portion.

In the above example in which the link device includes the first and second link mechanisms, the link device is connected to the upper ends of the first and second link mechanisms and is relatively connected to the first and second link mechanisms. The tilt mechanism that tilts the slats by changing the position and the first and second link mechanisms that are folded and extended by the link folding and extending mechanism are tilted so that the tilt mechanism operates. And a clutch mechanism for transmitting to the mechanism. An example of the traveling device is one that includes a rotating body with which a long body is engaged and a rotary drive device that rotates the rotating body. As a long body,
It may consist of an endless or endless chain or belt.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in more detail based on the preferred embodiments shown in the drawings. The present invention is not limited to these examples.

[0013]

1 to 7, a blind device 500 of this example is a foldable link device 1 having a first link mechanism 2 and a second link mechanism 3 juxtaposed to the link mechanism 2, One end 4 is connected to the link mechanism 2 via the shaft 5,
A plurality of slat support mechanisms 8 each having the other end 6 rotatably connected to the link mechanism 3 via a shaft 7, a slat 9 supported by each of the slat support mechanisms 8, and link mechanisms 2 and 3 A tilt mechanism 12 that is connected to the respective upper ends 10 and 11 and causes the link mechanisms 2 and 3 to change their relative positions to tilt the slats 9.
And a lower part 13 of the link device 1 via a slat support mechanism 8 at the lowermost end to fold and extend the link mechanisms 2 and 3, and a link extension and extension mechanism 14, and a link by the link fold and extension mechanism 14. Mechanisms 2 and 3
In order to actuate the tilt mechanism 12 when extending, the clutch mechanism 15 for transmitting the operation of the link folding and extending mechanism 14 to the tilt mechanism 12 and the lower portion 13 of the link device 1.
And a releasing mechanism 16 for releasing the connection of the extension mechanism 14 to the link.

The link mechanism 2 comprises a plurality of first link members 22 rotatably connected to each other in series via a shaft 5 and a shaft 21, and the link mechanism 3 has a shaft 7 and a shaft 23. It is provided with a plurality of second link members 24 rotatably connected to each other in series via. Link member 22
And 24 are integrally provided with a restriction piece 25 that defines the folding direction of the link mechanisms 2 and 3.

Each of the slat support mechanisms 8 has one end 4
Is rotatably connected to every other connecting portion (portion of the shaft 5) via the shaft 5 in the mutually rotatable connecting portions (portions of the shaft 5 and the shaft 21) of the link member 22. The other end 6 of the link member 24 is rotatable with respect to each other (the shaft 7
And the portion of the shaft 23), every other connecting portion (the shaft 7
An arm 31 that is rotatably connected to the portion 31) via a shaft 7, and a mounting portion 32 that is integrally fixed to the substantially central portion of the arm 31 and that extends horizontally. The mounting portion 32 extends through a vertically extending guide path 34 formed in the vertical frame 33, and the slats 9 are fixed to the mounting portion 32 on the outer side of the vertical frame 33, and thus the slat support mechanism 8 is provided. Are slidably moved up and down by being guided by the guide path 34, and support the slats 9, respectively.

The tilt mechanism 12 has a rotating body 43 rotatably provided on a shaft 41 via a bearing 42, one ends 44 and 45 of the rotating body 43, and the other ends 46 and 47 of the linking mechanism 2. 3 and 3, respectively, to a pair of upper ends 48 and 49, respectively, and a pair of cords, for example wires 50 and 51.

The link folding / extending mechanism 14 is a flexible elongated body, in this example, an end chain 61 having one end 59 and the other end 60, and a bending preventing means 62 for preventing the chain 61 from bending. It comprises a traveling device 63 for traveling the chain 61 in the A and B directions, and a connecting means 64 for connecting the chain 61 to the lower portions 13 of the link mechanisms 2 and 3.

The blocking means 62 comprises a pair of guide walls 71 and 72 formed integrally with the vertical frame 33, and a chain retainer 70 provided on the vertical frame 33 and arranged around a sprocket wheel 73. The chain 61 has a guide path 74 and 7 formed between a pair of guide walls 71 and 72.
5, chain presser 70 and sprocket wheel 73
It travels through a chain passage 76 between and, and the unnecessary bending is prevented by the pair of guide walls 71 and 72 and the chain retainer 70.

The traveling device 63 has a sprocket wheel 73 as a rotating body with which the chain 61 meshes and engages.
And a rotation drive device 78 for rotating the sprocket wheel 73.
Is arranged coaxially with the rotating body 43 and is fixedly provided on the shaft 41. The rotation driving device 78 includes an electric motor 79.
And a speed reducer 80 that supports the electric motor 79 and is attached to the vertical frame 33 and that reduces the rotation of the output rotation shaft of the electric motor 79 and transmits it to the shaft 41. By the operation, the shaft 41 is rotated to rotate the sprocket wheel 73, which causes the chain 61 hung on the sprocket wheel 73 to travel in the A and B directions.

In this embodiment, the connecting means 64 connects the lower end 59 of the chain 61 to the lower portions 13 of the link mechanisms 2 and 3 via the slat support mechanism 8 at the lowermost end, and the slat support mechanism 8 at both ends is the lowest end. And a bridge member 85 attached to the shafts 5 and 7 of the bridge, and is vertically movable by being guided by the guide path 34, and the center portion of the bridge member 85 is rotatably connected via a pin 86. A body 87, a rotatable rotation shaft 89 connected to the transmission mechanism 88 of the release mechanism 16, and a rotation shaft 89.
And a hook member 91 having a hook 90 (see FIG. 11) at one end, and an engaging member 9 that is vertically separable from the movable body 87 and engages with the hook 90.
2 and a connecting plate 93 having an engaging member 92 implanted therein and attached to the lower end 59 of the chain 61. The engaging member 92 comes into contact with the movable body 87 from below. The pair of rollers 94 movably arranged on the guide walls 71 and 72 are attached to the connecting plate 93, so that the connecting plate 93 also does not bend with respect to the lower end 59 of the chain 61. It is distributed.

The clutch mechanism 15 includes a rotating body 43 and a shaft 96.
Claw member 97 rotatably attached through the engaging pin 98, the engagement pin 98 attached to the vertical frame 33 so that the claw member 97 engages, and the claw member 97 abutting against the claw member 97 to engage the claw member 97. Engagement protrusion 99 provided on the chain 61 of the link folding and extending mechanism 14 so as to release the engagement with the pin 98.
(See FIGS. 8 to 10), and the claw member 9
7 integrally includes a claw portion 101 having a recess 100 that engages with the engagement pin 98, and an abutment portion 102 that abuts against the engagement protrusion 99. The abutting portion 1 of the engaging protrusion 99 for contacting the engaging protrusion 99 with the abutting portion 102.
A notch 103 is formed to allow access to 02. When the claw member 97 is rotated by the contact of the engaging projection 99 with the abutting part 102 and the engagement between the recess 100 of the claw part 101 and the engaging pin 98 is released, the rotating body 43 is rotated. Therefore, the rotating body 43 is rotated as the chain 61 travels, and the claw member 97 is rotated by releasing the contact of the engaging protrusion 99 with the contact part 102, and the claw part 101 is rotated.
When the recess 100 and the engaging pin 98 are engaged with each other,
The rotating body 43 is fixed to the vertical frame 33 via the engaging pin 98 and cannot rotate.

The release mechanism 16 includes a liftable actuating rod 121 juxtaposed with the slats 9 on the back surface (inside) side.
And a base 124 which is connected to the lower portion 13 of the link device 1 at one end 122 via a connecting means 64 and is provided so as to be movable up and down, and in which a slit 123 extending in the vertical direction is formed.
And a slider 125 that is vertically movable on the base 124.
A transmission mechanism 88 for transmitting the lifting of the operating rod 121 to the connecting means 64 so as to release the connection of the chain 61 to the lower portion 13 of the link device 1 by the connecting means 64, and a holding means for holding the released state. This holding means is provided with a holding mechanism 127 (see also FIG. 11) that holds the lifting position of the actuation rod 121 in this example.

The base 124 has a pair of rollers 130 and 131 (see FIG. 11 for the roller 131) rotatably arranged on another pair of guide walls 128 and 129 integrally formed with the vertical frame 33. An attached base 132,
The base 132 is provided with a guide lid 133 fixed to the base 132, and the rotary shaft 89 is rotatably pierced at one end 122 of the base 132, and the movable body 87 is attached by a screw 134a. The base 124 has a lower end 1 of the link device 1 at one end 122 via the connecting means 64.
It is connected to 3. The base 124 has its rollers 130.
Since and 131 are rotatably fitted to the guide walls 128 and 129, they are guided by the guide passages 134 defined by the guide walls 128 and 129 and are vertically movable. The guide lid 133 is formed with the above-described slit 123 extending in the vertical direction. One end of the operating rod 121 is attached to the slider 125 through the slit 123, and the slider 125 moves up and down in the guide lid 133. It is arranged so that it can slide in any direction. Another slit 135 extending in the vertical direction is formed on the base 132 having a substantially L shape in a plan view.
Are formed.

The transmission mechanism 88 has a pin 142 at one end 141.
The first arm 143 is rotatably attached to the slider 125 by one end and is rotatably connected to the actuation rod 121 at one end 141, and the other end 146 is pivoted to the other end 146 of the arm 143 via the pin 145 at one end 144. The second arm 148 is movably connected to the other end 147 and is rotatably supported by the base 132 of the base 124 via the rotation shaft 89 fixed to the other end 147. Operating rod 1
The slider 125 is moved upward by lifting 21. By this movement, the arm 148 is rotated about the rotation shaft 89 in the C direction via the arm 143, and at the same time the rotation shaft 89 is rotated. It has become. As described above, in this example, the lifting of the actuation rod 121 is performed by the arms 143 and 1
The arm 148 is connected to the connecting means 64 so as to be transmitted to the connecting means 64 via 48.

The holding mechanism 127 is the base 1 of the release mechanism 16.
An arm 165 that is rotatably provided on the shaft 32 via a pin 161 and has an engaging portion composed of a rotatable roller 163 at one end 162, and one rotation state of the arm 165 (see FIG. 1).
The engaging portion 1 fixedly attached to the vertical frame 33 so as to engage with the roller 163 of the arm 165 in the rotation state shown in FIG.
The engaging member 167 having 66 (see FIG. 11) and the pin 1
61. An elastic means including a torsion coil spring 178 or the like for biasing the arm 165 in the D direction by rotating the arm 165 around the center 61 and a coil when the actuation rod 121 is lifted. One rotation state of the arm 165 by the elastic means including the spring 178 (the rotation state shown in FIG. 11)
And means 179 for preventing the arm from shifting to the one rotation state by the elastic means including the coil spring 178 and the like when the actuation rod 121 is not lifted up. The blocking means 179 includes a stopper pin 181 attached to the slider 125 and protruding through the slit 135. The stopper pin 181 is provided when the actuating rod 121 is not lifted (in the case shown in FIG. 5). , Arm 1
The arm 165 is prevented from rotating in the D direction by contacting the other end 182 of the armature 65, and when the operating rod 121 is lifted (in the case shown in FIG. 11), it is guided to the slit 135 as the slider 125 moves upward. Then, the arm 165 is moved upward to release the contact of the arm 165 with the other end 182, thereby allowing the arm 165 to rotate in the D direction.

In the blind device 500, the vertical frames 33 as described above are provided on both sides of the opening of the building, and the left and right vertical frames 33 are similarly equipped with the above-mentioned mechanism. The other end (not shown) of each slat 9 is supported by each slat support mechanism (not shown) similarly to the above. In addition, the shaft 41 has the other vertical frame 33.
The link folding and extending mechanism provided on the other vertical frame 33 is operated in a synchronized manner as described above.

In the above blind device 500, when the link mechanisms 2 and 3 are extended, the slat 9 is tilted almost vertically so as to completely close the opening of the building, as shown in FIG. And as shown in FIG.
The engagement protrusion 99 provided on the chain 61 is provided with the notch 10
3 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 shaft 4
With the rotation of 1, the sprocket wheel 73 is rotated and the chain 61 travels in the A direction. By the traveling of the chain 61 in the A direction, the projection 99 is also moved counterclockwise around the shaft 41, and this movement of the projection 99 causes the rotation body 4 to move.
3 is also rotated counterclockwise as shown in FIG. 9, and by the rotation of the rotating body 43, the wire 50 is pulled upward and the wire 51 is lowered downward, and as shown in FIG. Then, the link mechanism 2 is lifted relatively upward with respect to the link mechanism 3, and each of the arms 31 is rotated substantially horizontally, so that each of the slats 9 is also rotated substantially horizontally, and as shown in FIG. It is blindfolded as shown.

When the chain 61 further travels in the direction A, the projection 99 begins to come out of the notch 103, and the projection 99 comes out of the notch 103, so that the projection 99 then comes into contact with the claw portion 101 and is clawed. The member 97 is rotated about the shaft 96, and the recess 100 of the claw portion 101 and the engagement pin 98 are engaged with each other. As shown in FIG. 8, the recess 1 of the claw portion 101
00 is engaged with the engagement pin 98, the rotating body 43
Rotation is blocked and held in that state. As the chain 61 continues to travel in the A direction, the link mechanisms 2 and 3 connected to the chain 61 at the lower portion 59 start to be folded by the connecting means 64, and by this folding,
Slats 9 attached to the link mechanisms 2 and 3 via the slat support mechanism 8 are sequentially stacked from below.
When all the slats 9 are superposed, 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 opposite manner to the above with the opening completely opened or in the middle of the opening, the chain 61 runs in the direction B, whereby the link mechanisms 2 and 3 are moved. The extension is started from the upper side, and the superposition of the slat bundle is started to be released from the upper slat 9. When the link mechanisms 2 and 3 are all extended and the slat 9 is also completely unlaid, the protrusion 99 begins to be inserted into the notch 103, as shown in FIG. Then, the projection 99 contacts the contact portion 102 of the claw member 97 to rotate the claw member 97, and
The engagement of 00 with the engagement pin 98 is released, and by this release, the rotation body 43 is rotated in the clockwise direction opposite to the above as the projection 99 moves, and the wire 51 is pulled upward. , The wire 50 is lowered downward, which causes relative displacement of the link mechanisms 2 and 3, and the slats 9 attached to the link mechanisms 2 and 3 via the slat support mechanism 8 are tilted in the opposite direction, and this tilting is performed. Thus, as shown in FIG. 2, it is once made into a blind shape, and then the opening is completely closed as shown in FIG. After that, the operation of the electric motor 79 is stopped by a signal from a detector or the like, and the state in which the opening is completely closed is maintained.

In the blind device 500, when the opening shown in FIG. 1 is completely closed and the opening must be opened urgently, the actuation rod 121 is lifted upward. When the actuating rod 121 is lifted upward, the slider 125 is also slid upward in the guide lid 133, so that the arm 143 is also moved upward, and the arm 143 is moved upward to rotate to the arm 148. Rotation in the C direction about the shaft 89 is generated, and rotation of the arm 148 in the C direction also rotates the rotation shaft 89 in the C direction. Rotating shaft 8
When 9 is rotated in the C direction, the hook member 91 fixed to the rotating shaft 89 is rotated as shown in FIG. 11, and the engagement of the hook 90 with the engaging member 92 is released, and the chain 90 is released. 6
The rotary shaft 89, the movable body 87, and the like can freely move upward with respect to the engaging member 92 whose upward movement is prohibited by 1.

When the actuating rod 121 is further raised,
When the slider 125 comes into contact with the upper wall of the guide lid 133, the entire base 124 starts to be lifted upward, and the base 1
The upper part 24 of the link device 1
3 is also lifted, which also lifts the slat 9 from the bottom and the opening begins to open. In the upward sliding of the slider 125 in the guide lid 133,
The stopper pin 181 is also moved upward, whereby the arm 165 is rotated about the pin 161 in the D direction.

By further lifting the actuating rod 121, the opening is likewise opened further and the arm 1
The roller 163 of 65 rides on the engaging portion 166 and is engaged with the upper edge 166 a of the engaging portion 166. Here the operating rod 1
Even when the lifting of 21 is released, the roller 163 is engaged with the upper edge 166a of the engaging portion 166, so that the base 124 does not drop, and thus the opening is opened in a predetermined manner. Maintained at. As described above, in the blind device 500, only by lifting the actuation rod 121 by a predetermined amount, the opening is opened by a predetermined amount in an emergency,
The open state can be maintained.

In an emergency, the open state of the opening can be automatically released by operating the electric motor 79 to run the chain 61 and raising the engaging member 92 via the connecting plate 93. That is, when the engaging member 92 is raised, the engaging member 92 comes into contact with the movable body 87, whereby the movable body 87 is also raised together with the engaging member 92, and when the movable body 87 is raised, the base 132 is similarly moved. As a result, the slider 125 is lowered by its own weight relative to the base 132 due to the rise of the base 132. When the slider 125 is lowered relative to the base plate 132, the arm 148 is rotated in the opposite direction via the arm 143 and the arm 165 is rotated by the stopper pin 181.
Is also rotated in the opposite direction, whereby the hook member 91 is similarly rotated in the opposite direction via the rotation shaft 89, the hook 90 is again engaged with the engaging member 92, and the arm is rotated. The engagement of 165 with the upper edge 166a of the roller 163 is released, and the lower end 59 of the chain 61 is automatically connected to the lower portions 13 of the link mechanisms 2 and 3. Less than,
By running the chain 61, the above-described normal operation can be performed.

In the above example, one end 122 of the base 132 is
Is fixed to the movable body 87 with screws 134a, and the base 12
4 is connected to the lower portion 13 of the link device 1, but instead of this or together with this, the rotary shaft 89 is rotatably pierced through the movable body 87, whereby the base 124 is connected. 1 may be connected to the lower part 13 and the arm 16
5 was forced to rotate in the D direction by elastic means,
Instead of using the elastic means, it may be rotated in the D direction by its own weight. Furthermore, the lower end 5 of the chain 61
9 and the engaging member 92 are rigidly connected by the connecting plate 93, but instead of this, they may be connected via an elastic means as proposed in Japanese Patent Application No. 7-94276. By thus connecting the lower end 59 of the chain 61 and the engaging member 92 via the elastic means, even if the traveling of the chain 61 is not accurately stopped when closing the opening, the opening is completely closed as desired, It is possible to prevent excessive extension of the link mechanism and unreasonable bending of the long body.

[0035]

As described above, according to the present invention, it is possible to easily and quickly open the closed opening portion manually when an emergency or the like is required without deteriorating the crime prevention function.

[Brief description of drawings]

FIG. 1 is a perspective view showing a completely closed state of an opening according to a preferred embodiment of the present invention.

FIG. 2 is a perspective view of the opening of the embodiment shown in FIG. 1 in a blind-shaped closed state.

FIG. 3 is an explanatory side view of the upper portion of the right vertical frame of the embodiment shown in FIG.

4 is an upper rear view of the right vertical frame of the embodiment shown in FIG.

5 is a bottom side view of the left vertical frame of the embodiment shown in FIG. 1. FIG.

6 is a bottom front view of the left vertical frame of the embodiment shown in FIG. 1. FIG.

7 is a bottom plan view of the left vertical frame of the embodiment shown in FIG. 1. FIG.

8 is an operation explanatory diagram of the embodiment shown in FIG. 1. FIG.

9 is an operation explanatory diagram of the embodiment shown in FIG. 1. FIG.

FIG. 10 is an operation explanatory view of the embodiment shown in FIG.

FIG. 11 is an operation explanatory diagram of the embodiment shown in FIG. 1.

[Explanation of symbols]

1 Link device 2 First link mechanism 3 Second link mechanism 8 slat support mechanism 9 slats 14 Link folding and extension mechanism 16 Release mechanism 61 chain 62 Bending prevention means 63 traveling device 64 connection means 88 transmission mechanism 121 Actuation rod

Claims (6)

(57) [Claims] 1. A foldable link device, a plurality of slat support mechanisms connected to the link device, slats supported by each of the slat support mechanisms, and a link device connected to a lower portion of the link device. Fold,
It has a link fold for extending, an extension mechanism, a link fold to the lower part of the link device, and a release mechanism for releasing the connection of the extension mechanism.The link fold, extension mechanism is a flexible elongated body, The slender slats are provided with a sag preventing means for preventing sagging of the elongated body, a traveling device for traveling the elongated body, and a connecting means for connecting the elongated body to a lower portion of the link device. The actuating rods that can be lifted up side by side, the transmission mechanism that transmits the lifting of the actuating rods to the connecting means so as to release the connection of the elongated body to the lower part of the link device by the connecting means, and the connecting means at one end It is connected to the lower part of the link device and is vertically movable.
The blind device includes a base having a slit extending in the vertical direction and a slider provided on the base so as to be vertically movable. One end of the operating rod is attached to the slider through the slit. . 2. The transmission mechanism has a first arm rotatably connected to the actuation rod at one end, a rotatably connected to the first arm at one end, and a base at the other end. A second arm rotatably supported, wherein the second arm is a connecting means so that the lifting of the actuating rod is transmitted to the connecting means via the first and second arms. The blind device according to claim 1, which is connected to the blind device . 3. The connecting means includes a movable body connected to a lower portion of the link device, a rotatable rotary shaft connected to a transmission mechanism, and a rotary shaft attached to the rotary shaft and having a hook at one end. and the hook member, a movable away from the movable member, engages the hook of the hook member, to claim 1 or 2, comprising an engaging member connected to one end of the elongated body The blind device described. 4. A foldable link device, a plurality of slat support mechanisms connected to the link device, slats supported by each of the slat support mechanisms, and a link device connected to a lower portion of the link device. Fold,
It has a link fold for extending, an extension mechanism, a link fold to the lower part of the link device, and a release mechanism for releasing the connection of the extension mechanism.The link fold, extension mechanism is a flexible elongated body, The slender body is provided with a flexure preventing means for preventing flexure of the elongated body, a traveling device for traveling the elongated body, and a connecting means for connecting the elongated body to a lower portion of the link device. It comprises a juxtaposed liftable actuating rod and a transmission mechanism for transmitting the lifting of the actuating rod to the connecting means so as to release the connection of the elongated body to the lower part of the link device by the connecting means. The means includes a movable body connected to a lower portion of the link device, a rotatable rotation shaft connected to the transmission mechanism, a hook member attached to the rotation shaft and having a hook at one end, and a movable body. Can be separated from Hook of the hook member and is engaged, the blind apparatus that includes an engaging member connected to one end of the elongate body. 5. The release mechanism further comprises a holding means for holding the released state, the holding means comprises a holding mechanism for holding the lifting position of the actuation rod, and the holding mechanism comprises:
The release mechanism includes an arm that is rotatably provided and has an engaging portion at one end, and an engaging portion that is arranged to engage with the engaging portion of the arm when the arm is in one rotating state. and the engaging member, a resilient means for biasing the arm to one of the rotation state, when the Lift of the actuating rod, allowing the transition to one rotation state of the arm by the elastic means, non-actuation rod during Lift, blind apparatus according to any one of claims 1, which comprises a means for preventing the transition to one rotation state of the arm by the elastic means 4. 6. A foldable link device, a plurality of slat support mechanisms connected to the link device, slats supported by each of the slat support mechanisms, and a link device connected to a lower portion of the link device. Fold,
It has a link fold for extending, an extension mechanism, a link fold to the lower part of the link device, and a release mechanism for releasing the connection of the extension mechanism.The link fold, extension mechanism is a flexible elongated body, The slender body is provided with a flexure preventing means for preventing flexure of the elongated body, a traveling device for traveling the elongated body, and a connecting means for connecting the elongated body to a lower portion of the link device. Lifting actuating rods juxtaposed with each other, a transmission mechanism for transmitting the lifting of the actuating rods to the connecting means so as to release the connection of the elongated body to the lower part of the link device by the connecting means, and a holding holding the released state The holding means has a holding mechanism for holding the lifting position of the actuation rod, and the holding mechanism is rotatably provided on the release mechanism and has an engaging portion at one end. Arm and this arm The engaging member having the engaging portion arranged to engage with the engaging portion of the arm in the rotating state, the elastic means for urging the arm in the one rotating state, and the holding member of the operating rod. during br /> on up, blocking allows the transition to one rotation state of the arm by the elastic means, during the non-have top up the actuating rod, a transition to one rotation state of the arm by elastic means And a blind device.