JPH076309B2 - Shutter locking device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device for a shutter, and relates to a device for automatically locking the shutter by lowering and closing the shutter.

(Prior Art) Conventionally, as a locking device of this kind of shutter, as described in, for example, Japanese Utility Model Publication No. 58-3675 and Japanese Utility Model Publication No. 62-196868, a space between the left and right guide rails is provided. The tip of the lock bar is projected to the left and right parts of the lower end of the ascending / descending shutter, and a stopper body that locks the tip part of the lock bar is pivotally supported by springs near the lower ends of the left and right guide rails. However, there is known a structure in which the left and right stopper bodies are interlockingly connected to an electric lock mechanism including solenoids provided on the left and right guide rails.

In the above structure, when the shutter is lowered,
The tips of the left and right lock bars of the shutter push the left and right stopper bodies outward against the springs and descend, and the tips of the left and right lock bars pass through the left and right stopper bodies and The return force of the spring causes the left and right stopper bodies to automatically return to the top of the lock bar and rotate to lock the rise of this.
Further, when the shutter is raised, the left and right stopper bodies are operated so as to unlock the tip portions of the lock bars by operating the left and right electric lock mechanisms.

(Problems to be Solved by the Invention) In the structures described in the above publications, it is necessary to provide an electric lock mechanism for controlling the operation of the left and right stoppers on each of the left and right guide rails. However, there is a problem in that it is not possible to provide an electric lock mechanism in the middle pillar provided with one guide rail due to space limitations, and thus it is not possible to cope with the specifications of the continuous window.

Therefore, the present invention has been made in view of such a problem, and it is possible to lift the shutter by unlocking the left and right portions of the shutter while unlocking the shutter on either one of the left and right directions. By doing so, it suffices to provide the electric lock mechanism on only one side, which reduces the number of steps to be performed easily, and the overall structure is simple and the cost can be reduced. It is an object of the present invention to provide a shutter locking device that is not necessary and can sufficiently deal with a continuous window specification, and is therefore excellent in workability and economy.

(Means for Solving the Problems) A locking device for a shutter according to a first aspect of the present invention includes a guide rail having a guide portion for vertically ascending and descending the shutter, and a guide rail between the guide portions of the left and right guide rails. A shutter that can be lifted up and down, and left and right stopper bodies that are rotatably provided in a vertical direction relative to the vicinity of the lower ends of the left and right guide rails and are biased so as to always project into the guide portion. A solenoid provided on the one guide rail for controlling the rotation of the one stopper body; and a shutter connected to left and right portions near the lower end of the shutter in a vertically rotatable manner via a link mechanism. When the shutter is raised, it is locked by the other stopper body and the left and right stopper bodies are pushed. And left and right locking bodies that are raised by avoiding rotation in a direction away from them, and a switching lever that is provided in the link mechanism and that retracts the left and right locking bodies to a position away from the left and right stopper bodies in an emergency. It was done.

A shutter locking device according to a second aspect of the present invention is the shutter locking device according to the first aspect, wherein one of the stopper bodies whose rotation is controlled by a solenoid is supported by upper and lower support shafts and is rotated depending on the rotation direction. The one support shaft is pivotally supported and the other support shaft as a guide so as to be rotatable in the up-and-down direction and movable forward and backward with respect to the guide portion of one guide rail, and the other stopper body is Is supported by a guide portion of the guide rail so as to be movable back and forth, and is elastically supported so as to always project into the guide portion.

A shutter locking device according to a third aspect of the present invention is the shutter locking device according to the first or second aspect, in which the left and right locking bodies are pivoted to the outer ends of the left and right sliding pieces that are moved forward and backward by the switching lever. It is projectingly held so as to be rotatable in the vertical direction via a shaft, and is rotatably supported by both ends of the interlocking arm in the left-right direction via a support shaft, and is interlocked with the rotation of the other locking body. One of the locking bodies is rotated.

(Operation) In the shutter locking device of the first aspect, when closing the shutter, first, when the shutter is turned in the rewinding direction, the shutter is guided by the guide portions of the left and right guide rails and is gradually lowered. It Then, the lock bodies at the left and right portions of the lower end of the shutter come into contact with the left and right stopper bodies, and the left and right stopper bodies are pushed by the descending left and right lock bodies to be retracted from the guide portion. Also,
The shutter is further lowered, the left and right locking bodies pass through the left and right stopper bodies, and the left and right stopper bodies are returned and rotated, and are automatically projected into the guide portion again.

The left and right stopper bodies are projected above the left and right locking bodies of the shutter, and the one stopper body is locked by the solenoid so that the left and right locking bodies are not pivoted upward. Even when operated in the ascending direction, the left and right locking bodies are locked by the left and right stopper bodies to prevent the upward movement, and therefore the shutter is automatically locked by the left and right stopper bodies via the left and right locking bodies. .

Next, when the shutter is opened, when the solenoid provided for one stopper body is energized, the plunger is pulled up and the lock of the one stopper body is released. When the shutter is rotated in the winding direction, the shutter is raised along the guide portions of the left and right guide rails, and the left and right locking bodies of the shutter are locked by the left and right stopper bodies. When the shutter is further raised, the other locking body, which is locked to the other stopper body, is gradually rotated downward as the shutter is raised.

Then, the other side locking body is disengaged from the other stopper body, and the one side locking body locked by the one stopper body is gradually rotated upward by the operation of the link mechanism. With the upward rotation of the one side locking body, the one side locking body rotates the one stopper body upward and retracts from the inside of the guide portion. The locking body comes off.

Further, the shutter is further raised and the left and right locking bodies pass through the left and right stopper bodies, and the left and right locking bodies are automatically returned and rotated by the operation of the link mechanism to project into the guide portion. The shutter is easily raised and opened.

In the shutter locking device according to claim 2, when the left and right stopper bodies are pushed by the left and right locking bodies when the shutter is lowered, the left and right stopper bodies move outwardly against the spring about the upper support shaft. The left and right stoppers pass through, and the left and right stoppers are automatically rotated and returned to the guide part by the spring return force around the upper support shaft, and the left and right stoppers are rotated. Lock the rise of the body.

Further, when the shutter is lifted and released, the other locking body, which is locked to the other stopper body, is gradually rotated downwards against the spring around the support shaft as the rotation center. At the same time, the one locking body, which is locked to the one stopper body, is gradually rotated upwards against the spring around the support shaft as the rotation center.
Further, as the one-sided locking body is rotated upward, the one-sided locking body causes the one stopper body to resist the spring with the lower support shaft as the center of rotation and the upper support shaft. It is rotated upward through the and is retracted from inside the guide portion.

Then, the shutter is further raised so that the left and right locking bodies pass through the left and right stopper bodies, and this one stopper body is rotated about the lower support shaft by the return force of the spring and the upper support shaft is rotated. It is returned and rotated through and is automatically projected again into the guide portion. The locking body on the other side that has passed through the other stopper body is returned and pivoted horizontally again from below around the support shaft by the restoring force of the spring, and is projected onto the other stopper body in the guide portion.

According to another aspect of the present invention, in the shutter locking device according to claim 3, in the fully closed state where the shutter is lowered, the switching lever is switched when it is necessary to open the shutter in an emergency when the solenoid for one of the stopper bodies cannot be energized due to a power failure. When operated, the left and right sliding pieces are slid toward each other by sliding inward in the approaching direction, and the left and right locking bodies provided at the outer end portions of the left and right sliding pieces are attached to both ends of the interlocking arm. It is rotated downward around the support shaft, the left and right locking bodies are retracted inward to the position where they are not locked by the left and right stopper bodies, and the left and right locking bodies are unlocked by the left and right stopper bodies. To be done.

Then, when the shutter is raised, the left and right locking bodies pass through the left and right stopper bodies without being locked by the left and right stopper bodies protruding in the left and right guide portions, and are pulled up above the left and right stopper bodies. To be Further, when the switching lever is switched again, the left and right sliding pieces are pushed back outward from each other, and the left and right locking bodies at the outer ends of the left and right sliding pieces move to the both ends of the interlocking arm. It is automatically returned and rotated upward about the support shaft, and the left and right locking bodies are projected into the guide portions on the left and right stopper bodies. In this way, the shutter can be easily raised and opened in the event of a power failure.

(Embodiment) An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 is a guide rail that is erected so as to face left and right, and the guide rails 1 on the left and right have a U-shaped configuration in which guide grooves 2 that are open so as to face each other inside are formed in the vertical direction. The rail frame 3 and an outer frame 4 formed on the outer side of the rail frame 3 constitute a shutter, which will be described later, from inside the guide groove 2 of the left and right rail frames 3 to the guide portion 5 inside the rail frame 3. Both left and right ends of the are vertically movable.

Further, guide holes 6 communicating with the inside of the outer frame 4 are formed in the vicinity of the lower ends of the rail frames 3 of the left and right guide rails 1, and the guide parts of the rail frame 3 are formed in the right guide ports 6. A stopper body 7 on the right side, which moves forward and backward with respect to the inside of 5 and the inside of the outer frame 4, is rotatably supported. As shown in FIG. 4, the stopper body 7 on the right side is integrally formed with a guide plate 9 between the inner edge portions of the front and rear side plates 8 which face each other and which gradually expands toward the rail frame 3 side from the upper part to the lower part. An engaging portion 10 is horizontally formed at a lower end portion of the guide plate 9, and an upper support shaft 11 in the front-rear direction pivoted around the guide opening 6 is rotated on an upper portion of the front and rear side plates 8. An insertion hole 12 which is freely inserted is formed to communicate with each other, and an arcuate shape in which a lower support shaft 13 in the front-rear direction, which is axially mounted below the upper support shaft 11, is inserted, is formed in a lower portion of the front and rear side plates 8 facing each other. Guide groove
14 is formed from the inner part to the outer part.

A toggle spring is used as a spring on the upper support shaft 11.
15 is wound, one end 16 of the toggle spring 15 is locked to the inner side of the lower support shaft 13, and the other end 17 of the toggle spring 15 is provided on the guide plate 9 of the stopper body 7. It is locked on the back side. The right stopper body 7 is normally urged by the toggle spring 15 so as to rotate in the clockwise direction in FIG. 1 about the upper support shaft 11, and the guide plate 9 thereof is guided by the guide portion 5 of the rail frame 3. It is designed to project inward.

Further, an electric lock device 18 is fixed inside the lower end portion of the outer frame 4 of the left guide rail 1. As shown in FIG. 3, the electric lock device 18 has a main body case 19 extending vertically and a cover body 20 closing the opening side of the main body case 19. 19
A solenoid accommodating chamber 21, a locking tool accommodating chamber 22 and a stopper accommodating chamber 23 are formed in the upper and lower portions of the inside. A solenoid 24 is a supporting frame in the solenoid housing chamber 21.
25. The lower part of the plunger 26 of the solenoid 24 is protruded into the locking tool accommodating chamber 22, and the flange 27 on the upper part of the plunger 26 and the bottom plate of the supporting frame 25 A spring 29 is wound around the plunger 26 between the spring 26 and 28. And this solenoid 24 is
When the shutter is opened, which will be described later, the plunger 26 is raised by energizing.

Further, the locking tool 30 is accommodated in the locking tool storage chamber 22 so as to be vertically movable, and the locking tool 30 is provided on one side lower part of the mounting portion 31 formed on the upper part. Engaging upper surface of a protrusion 32 protruding from one side portion between the storage chamber 22 and the stopper storage chamber 23.
A step portion 34 that engages with 33 is formed horizontally, and a locking portion 35 that vertically moves in the stopper accommodating chamber 23 along the protrusion 32 is vertically provided at a lower portion of the locking tool 30. It is formed into a shape. The upper mounting portion 31 of the locking member 30 is fixed to the lower end portion of the plunger 26, and the lower locking portion 35 of the locking member 30 is connected to the stopper accommodating portion 23.
It is designed to project into the outer upper part of the.

Further, the main body case 19 in the stopper accommodating chamber 23
On the inner wall surface on the side, an arc-shaped guide groove 36 is formed in the upper part from the inner part to the outer part.
A bearing recess 37 is formed in the lower part of one side of 36, and the inner wall surface of the cover body 20 in the stopper accommodating chamber 23 is
A guide groove 38 facing the guide groove 26 and a bearing recess 39 facing the bearing recess 37 are formed. Then, in the stopper accommodating chamber 23, there is an upper support shaft 41 and a lower support shaft 42 axially supported between the guide recessed grooves 36, 38 and the bearing recesses 37, 39, respectively, to which the left stopper body 40 faces. The rail frame 3 is rotatably supported in the guide portion 5 so as to be movable back and forth.

Further, the left stopper body 40 is integrally formed with a guide plate 44 which is gradually expanded and inclined toward the rail frame 3 side from the upper portion to the lower portion between the inner edge portions of the front and rear side plates 43 facing each other. An engaging portion 45 is horizontally formed at a lower end portion, and an engaging portion 46 is formed at a rear edge portion of the front and rear side plates 43 to engage and disengage an engaging portion 35 formed at a lower side portion of the engaging member 30. Are formed vertically. Further, an insertion hole 47 through which the upper support shaft 41 is rotatably inserted is formed in communication with the upper portion of the front and rear side plates 43 facing each other, and the lower support shaft 42 is provided on the lower portion of the front and rear side plates 43 facing each other. An arc-shaped guide groove 48 that is inserted through is formed in the same shape as the guide groove 36 from the inner side to the outer side.

Further, a toggle spring 49 is wound around the upper support shaft 41 and the lower support shaft 43 as a common spring.
One end 50 of the toggle spring 49 is locked to the bottom surface 51 of the stopper housing chamber 23, and the other end 52 of the toggle spring 49 is locked to the back surface of the guide plate 44 of the left stopper body 40. . The left stopper body 40 is normally urged by the toggle spring 49 so as to rotate counterclockwise in FIG. 1 about the upper support shaft 41, and the guide plate 44 of the stopper body 40 guides the guide portion of the rail frame 3. 5 is projected into the inside. Reference numeral 53 denotes a plurality of screws that fix the cover body 20 to the main body case 19.

Next, the lower ends of the left and right guide rails 1 are
It is erected and supported at the upper end of both ends of the
A shutter box 55 is continuously provided and fixed between the upper ends of the left and right guide rails 1, and a winding drum (not shown) is rotatably mounted in the shutter box 55. A large number of slats 56 are mounted on the winding drum. Shutter 57
Is rewound freely, a skirting board 58 is connected to the slat 56 at the lower end of the shutter 57, and a drainer 59 is connected to the lower end of the skirting board 58. An oscillating body 60 is continuously provided below the draining body 59. Both ends of the shutter 57 are inserted into the guide portions 5 of the rail frame 3 of the left and right guide rails 1, and the shutter 57 can be lifted and lowered by being guided by the left and right guide portions 5. There is.

Further, as shown in FIG. 2, the skirting board 58 has a main body frame 61 having a U-shaped cross section with a rear side surface opened, and an upper surface plate 62 and a lower surface plate 63 of the main body frame 61. An intermediate support frame 66 and both side support frames 67, which are formed in a U-shaped cross section, are formed at the middle portion and the left and right end portions of the upper and lower engaging pieces 64, 65 formed on the upper and lower mounting pieces 68, 69, respectively. A pair of guide pieces 70 are formed on the front upper and lower portions of the intermediate support frame 66 and the both-side support frames 67, which are fixed to each other, in the same plane in the left-right direction.

Further, a locking concave portion 71 is cut out at an intermediate upper edge portion of the intermediate supporting frame 66, and an engaging concave portion 73 having a guide edge portion 72 inclined downward toward the outside is continuously provided at one side portion of the locking concave portion 71. Has been done. Further, a support shaft 74 is provided in a projecting manner in the widthwise intermediate portion of the intermediate support frame 66, and an intermediate portion of a switching lever 75 for sliding operation is provided on the support shaft 74 via a switching elongated hole 76 which is long in the vertical direction. The switching lever 75 is pivotally mounted so as to be vertically movable and rotatable, and at the upper end of the switching lever 75, a locking piece 77 that also serves as a knob is formed in the locking recess 71 and the engaging recess 73. It is adapted to be engaged and disengaged with respect to.

Further, the inner ends of interlocking pieces 79 extending in the left-right direction are rotatably pivotally attached to the lower end of the switching lever 75 and the upper and lower interlocking shafts 78 protruding from the upper part of the elongate switching hole 76, respectively. The left and right sliding pieces are attached to the outer ends of the left and right interlocking pieces 79 via the shaft 80.
The inner end portion of 81 is rotatably pivoted, and the left and right sliding pieces 81
Is horizontally slidably mounted between the guide pieces 70 at the upper and lower ends of the intermediate support frame 66 and the guide pieces 70 at the upper and lower portions of the both-side support frames 67 so as to be slidable in the left-right direction. A locking body 83, which can be engaged and disengaged with the left and right stopper bodies 7 and 40, is rotatably attached to the outer ends of the left and right sliding pieces 81 via a support shaft 82. Stationary body
83 is the engaging portion 1 of the left and right stopper bodies 7 and 40 on the upper surface of the tip.
The engaging portion 84 that engages and disengages with the 0, 45 is formed horizontally, and engages and disengages with the guide surfaces 9, 44 of the left and right stopper bodies 7, 40 from the front end to the lower side of the engaging portion 84. The pushing portion 85 is formed in an arc shape.

Further, one end of a spring 86 wound around the left and right support shafts 82 is locked to the locking body 83, and the other end of the spring 86 is locked to the sliding piece 81, By this spring 86, each locking body 83 is elastically held so as to always project in the outward extension direction of the sliding piece 81. In addition, mounting pieces that are projected to the upper inside of the left and right locking bodies 83.
Both ends of the interlocking arm 88 are rotatably pivoted between 87 via a support shaft 89, and are projectingly provided on a projecting piece 90 on one upper end of the interlocking arm 88 and an upper inner end of the right supporting frame 67. A coil spring 92 is stretched between the projecting piece 91 and the projecting piece 91.

Further, a coil spring 95 is stretched between a projecting piece 93 at a lower inner end of the left interlocking piece 79 and a projecting piece 94 at a lower outer end of the intermediate support frame 66. The switching lever 75 is always urged to rotate downward via the piece 79, and the switching elongated hole 76 of the switching lever 75 is provided.
The upper part of the is pivotally supported by the support shaft 74, and the locking piece 77 of the switching lever 75 is locked in the locking recess 71 of the intermediate support frame 66.

The switching lever 75, the left and right interlocking pieces 79, the left and right sliding pieces 81, the interlocking arm 88, and the coil springs 92 and 95 constitute a link mechanism 96 on the left and right with the switching lever 75 as the center. Incidentally, reference numeral 97 in the figure denotes a stopper for the attachment piece 87 of the locking body 83 provided in a projecting manner on the supporting frame 67 on one side.

Further, the cover body 98 is attached to the upper and lower locking frames 64 and 65 of the main body frame 61.
Is detachably attached, and an engaging concave portion 99 and a guide edge portion 100 having the same shape as the engaging concave portion 71 and the engaging concave portion 73 of the intermediate support frame 66 are formed in the upper middle portion of the cover body 98. The engaging recessed portion 101 having the notch is formed, and the engaging recessed portion 99 and the engaging recessed portion 1 are formed.
The lock piece 77 of the switching lever 75 is engaged with and disengaged from the lock lever 01 at 01.

Next, the operation of the above structure will be described.

First, when closing the shutter 57, when the winding drum in the shutter box 55 is rotated in the direction in which the shutter 57 is rewound, the left and right ends of the shutter 57 of the rail frame 3 of the left and right guide rails 1 are formed. It is guided by the guide portion 5 and gradually descends. Then, the pushing portions 85 of the left and right locking bodies 83 in the skirting board 58 at the lower end of the shutter 57 contact the guide plates 9, 44 of the left and right stopper bodies 7, 40, and the left and right pushing portions 85 While the guide plates 9 and 44 are pushed down by the left and right pushing portions 85 while descending along the inclined surfaces of the guide plates 9 and 44, the left and right stopper bodies 7 and 40 are provided with the toggle spring 1
The rail frame 3 is guided by rotating the upper support shafts 11,41 against the 5,49 and turning outward through the lower support shafts 13,42 and the arc-shaped guide grooves 14,48. The part 5 is retracted into the outer frame 4.

Further, the shutter 57 is further lowered, the left and right locking bodies 83 of the skirting board 58 pass through the guide plates 9, 44 of the left and right stopper bodies 7, 40, and the left and right stopper bodies 7, 40 are respectively By the restoring force of the toggle springs 15,49 of the upper support shaft 11,41
Is the center of rotation, and is returned and rotated inward through the lower support shafts 13, 42 and the arc-shaped guide grooves 14, 48, and is automatically projected into the guide portion 5 of the rail frame 3 again. It The left and right stopper bodies 7 and 40 are projected above the locking portions 85 of the left and right locking bodies 83 of the shutter 57, and the left stopper body 40 is a locking device for the solenoid 24.
Since the inward upward rotation is locked by 30,
Even if the left and right locking bodies 83 operate in the ascending direction, the left and right locking bodies 83 are locked to the locking portions 10, 45 of the left and right stopper bodies 7, 40 to prevent the lifting,
Therefore, the shutter 57 is automatically locked by the left and right stopper bodies 7 and 40 via the left and right locking bodies 83.

Next, when opening the shutter 51, energize the solenoid 24 provided for the left stopper body 40,
The plunger 26 is lifted up against the coil spring 29, the locking tool 30 at the lower end of the plunger 26 is pulled up, and the locking part 35 of the locking tool 30 is at the rear part of the left stopper body 40. The stopper body 40 is separated from the engaging portion 46 and the lock of the stopper body 40 by the locking tool 30 is released. When the winding drum is rotated in the direction in which the shutter 57 is wound up, the shutter 57 is raised along the guide portions 5 of the rail frames 3 of the left and right guide rails 1 and the shutter 57
The locking portions 84 of the left and right locking bodies 83 of the skirting board 58 of 57 are locked to the locking portions 10, 45 of the left and right stopper bodies 7, 40.

Further, when the shutter 57 is further raised, the right locking body 83, which is locked by the right stopper body 7 as the shutter 57 is lifted, resists the spring 86 around the support shaft 82 as a rotation center. The locking body 83 on the right side is released from the stopper body 7 on the right side, and the interlocking arm 88 resists the coil spring 92 by the rotation of the locking body 83 on the right side. Is laterally moved by being pulled outward on the stopper body 7 side, and with the lateral movement of the interlocking arm 88, the left locking body 83 locked by the left stopper body 40 moves the support shaft 82. As the center of rotation, it is gradually rotated upward against the spring 86.

Further, as the left side locking body 83 rotates upward, the left side locking body 83 causes the left side stopper body 40 via the locking portion 45 to resist the toggle spring 49. Support shaft
The guide portion 5 of the rail frame 3 is rotated upward with the support shaft 41 and the arc-shaped guide groove 36 at the upper part as the rotation center.
It is retracted into the stopper accommodating portion 23 retracted from the inside, and the left locking body 83 is disengaged from the left stopper body 40.

Then, the shutter 57 is further raised and the left and right locking bodies 83 of the skirting board 58 are locked by the locking portions 10, 45 of the left and right stopper bodies 7, 40.
When the stopper body 40 on the left side passes through, the return force of the toggle spring 49 causes the lower support shaft 42 to be the center of rotation, and the return rotation is performed via the upper support shaft 41 and the arc-shaped guide groove 36. Then, it is automatically projected again into the guide portion 5 of the rail frame 3. Further, the right locking body 83 that has passed through the right stopper body 7 is moved downward in the center of the support shaft 82 through the restoring force of the interlocking arm 88 and the spring 86 that is laterally moved inward by the restoring force of the coil spring 92. Then, it is returned to the horizontal state and rotated again to project onto the right stopper body 7 in the guide portion 5 of the rail frame 3.

Also, with the return movement of the interlocking arm 88 inward by the coil spring 92, the left locking body 83 is rotated downward with the return force of the spring 86 about the support shaft 82 and returns to the horizontal state again. It is rotated and projected onto the left stopper body 40 in the guide portion 5 of the rail frame 3.

Therefore, the left and right locking bodies 83 are the left and right stopper bodies 7,40.
And automatically projects in the outward extension direction of the interlocking arm 88, and also projects into the guide portion 5 of the rail frame 3 above the left and right stopper bodies 7 and 40. Further, the shutter 57 is wound and fully opened, the power supply to the solenoid 25 is cut off, and the plunger 26 is automatically lowered by the restoring force of the coil spring 29.
The engaging portion 35 of the engaging device 30 at the lower end is again engaged with the engaging portion 46 of the left stopper body 40, and the left stopper body 40 is locked so as not to rotate inward. It

Next, in the fully closed state where the shutter 57 is lowered, for example, when it is necessary to open the shutter 57 in an emergency when the solenoid 24 for the left stopper body 40 cannot be energized, such as during a power failure, in the middle rear of the skirting board 58. Grasp the locking piece 77 of the switching lever 75 protruding from the
Is pulled up to the support shaft 74 through the switching elongated hole 76, and the locking piece 77 is disengaged upward from the locking recess 71 to unlock the switching lever 75.

When the switching lever 75 is rotated around the support shaft 74 against the coil spring 95 toward the engagement recess 73 side by the locking piece 77, the upper and lower interlocking pieces 79 of the switching lever 75 are rotated.
The left and right sliding pieces 81 are slid toward each other inward in the approaching direction along the respective guides 70 and are attracted to each other. Locking body
83 is rotated downward around the support shafts 89 at both ends of the interlocking arm 88, and the left and right locking bodies 83 are retracted inward at positions not locked by the left and right stopper bodies 7, 40, The lock of the left and right locking bodies 83 by the left and right stopper bodies 7, 40 is released.

Then, the locking piece 77 of the switching lever 75 is engaged and supported in the engaging recess 73, and the shutter 57 is raised with the left and right locking bodies 83 retracted inward. Reference numeral 83 denotes the left and right stopper bodies 7, 40 which are not locked by the left and right stopper bodies 7, 40 which are projected into the guide portions 5 of the left and right rail frames 3.
It passes through 40 and is pulled up above the left and right stopper bodies 7, 40. Then, the support of the locking piece 77 of the switching lever 75 is released, the switching lever 75 is automatically returned and pivoted about the support shaft 74 by the returning force of the coil spring 95, and the engagement of the switching lever 75 is increased. Stop piece 77 has its guide edge
The locking piece 77 is rotated from the inside of the engaging recess 73 toward the locking recess 71 via 72, and the locking piece 77 is moved onto the locking recess 71, and the coil spring is passed through the support shaft 74 and the switching elongated hole 76. The switching lever 75 is pulled back downward by 95, and the locking piece 77 is fitted and locked in the locking recess 71 again.

Further, when the switching lever 75 is returned and rotated, the left and right sliding pieces 81 are pushed back to each other along the guides 70 through the upper and lower interlocking pieces 79, and the left and right sliding pieces 81 Left and right locking bodies 83 at the outer ends are pivots at both ends of the interlocking arm 88.
It is automatically returned and rotated upwards around 89,
The left and right locking bodies 83 are projected into the guide portions 5 of the left and right stopper bodies 7, 40.

In this way, the lock of the shutter 57 is released by manual operation, and the shutter 57 can be easily lifted and opened in an emergency in the event of a power failure.

(Effect of the Invention) According to the invention of claim 1, the left and right stopper bodies biased so as to always protrude into the guide portions of the left and right guide rails are opposed to each other in the vertical direction. Since a solenoid is provided on one guide rail of the left and right guide rails to control the circuit of the one stopper body, the solenoid is operated to rotate the one stopper body. By releasing the regulation and raising the shutter, the lock by the left and right stopper bodies with respect to the locking bodies on the left and right parts of the shutter is automatically released, while the other locking body has the other locking body. While being locked, the other locking body and the one locking body that is interlocked with the other locking body surely avoids and rotates in the directions in which they are disengaged from the left and right stopper bodies. The shutter can be raised smoothly.

In addition, the shutter that has been lowered can be automatically locked by simply providing a solenoid for the shutter on one side of the guide rail, and when this shutter is raised, the lock of the left and right parts of the shutter is automatically released by the operation of the solenoid on one side. be able to. For this reason,
Compared to one that has an electric lock mechanism on each of the left and right guide rails, it can be installed in half the number of steps and can be easily installed, and the overall structure is simple and cost can be reduced. Since it is not necessary to provide a window, it is possible to sufficiently deal with the specification of the continuous window.

In addition, since the link mechanism that links the left and right locking bodies together has a switching lever that retracts the left and right locking bodies to the position where they disengage from the left and right stopper bodies in an emergency, the solenoid is activated due to a power failure or the like when the shutter is lowered. When it is necessary to open the shutter in an emergency when electricity cannot be energized, by switching the switching lever, ensure that the left and right locking bodies are located outside the left and right stopper bodies that are restricted by the solenoid. The shutter can be retracted and the shutter can be easily opened without being locked by the left and right stopper bodies even in an emergency when the solenoid cannot be energized. Therefore, it is possible to provide a shutter locking device which is excellent in workability and economy.

According to the second aspect of the present invention, the shutters can be reliably locked by the left and right stopper bodies, and one of the stopper bodies selectively uses the upper and lower support shafts as a rotation center according to the ascending / descending direction of the shutter. It can rotate smoothly to cope with the vertical movement of the shutter.

According to the invention of claim 3, the set positions of the left and right locking bodies are engaged and locked with the left and right stopper bodies through the left and right sliding pieces by the switching operation of the switching lever, and the left and right stopper bodies. Therefore, the shutter can be easily opened in the event of a power failure where the electric lock mechanism cannot operate.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a front view showing a state in which a part of a shutter locking device is cut out, FIG. 2 is an exploded perspective view of the same as above, and FIG. 3 is one stopper body of the same as above. FIG. 4 is an exploded perspective view of the right-side stopper body, FIG. 5 is an operation explanatory view of locking the shutter, and FIG. 6 is an explanatory operation view of unlocking the same. FIG. 7 is an operation explanatory view of the unlocking operation at the time of power failure, and FIG. 8 is a front view of the shutter device. 1 ... Guide rail, 5 ... Guide part, 7,40 ... Stopper body, 11,13, 41, 42 ... Support shaft, 15, 49 ... Spring, 24
...... Solenoid, 57 ...... Shutter, 74,82,89 …… Spindle, 75 …… Switch lever, 81 …… Sliding piece, 83 …… Locking body,
86,92,95 …… Spring, 88 …… Interlocking arm, 96 …… Link mechanism.

Claims (3)

[Claims] 1. A guide rail, which has a guide portion for raising and lowering a shutter, which is erected so as to be opposed to each other on the left and right, and a shutter which is provided between the guide portions of the left and right guide rails so as to be able to move up and down.
The left and right stopper bodies are provided rotatably in the vertical direction relative to the vicinity of the lower ends of the left and right guide rails, and are biased so as to always project into the guide portion; A solenoid for controlling the rotation of one of the stopper bodies and a left and right portion near the lower end of the shutter are interlockingly connected via a link mechanism so as to be rotatable in the vertical direction, and push the left and right stopper bodies when the shutter descends. When the shutter moves up and down, the left and right locking bodies that are locked to the other stopper body when the shutter is raised, and rotate around the left and right stopper bodies while avoiding and rising, and the link mechanism are provided in an emergency. A switching lever for retracting the left and right locking bodies to a position where they are disengaged from the left and right stopper bodies, and locking the shutter. Location. 2. One of the stopper bodies whose rotation is controlled by a solenoid is supported by upper and lower support shafts, and one of the support shafts is used as a rotation center and the other support shaft is guided by the rotation direction. Is vertically rotatably supported and is movable forward and backward with respect to the guide portion of one guide rail, and the other stopper body is axially supported so as to be movable forward and backward with respect to the guide portion of the other guide rail. The shutter locking device according to claim 1, wherein the device is elastically held so as to project into the portion. 3. The left and right locking bodies are projecting and elastically supported by the outer ends of the left and right sliding pieces that are moved back and forth by a switching lever so as to be rotatable in the vertical direction via a support shaft, and in the left and right directions. Is rotatably supported by both ends of the interlocking arm of
3. The shutter locking device according to claim 1, wherein one of the locking bodies is rotated in association with the rotation of the other locking body.