JPH0752954Y2 - Sliding door device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a sliding door device used as a crime prevention fence at an entrance of a plane lattice of a window opening.

(Prior Art) For example, a surface lattice has conventionally been fixedly attached to the outside of the window opening for crime prevention, but with this fixed surface lattice, the window opening can be used in an emergency such as a fire. There is a danger that the escape of the ship will be blocked and a disaster will occur.

Therefore, the above-mentioned surface lattice is a rotary type that can be opened and rotated forward of the window opening or a slide type that can be opened and moved to the side of the window opening. It is considered to lock the door and unlock it in case of emergency such as fire and open the lattice to allow emergency escape from the window opening.

(Problems to be Solved by the Invention) In the above-mentioned rotating or sliding type surface lattice, a sufficient space is required in front of or in the side of the window opening to which it is attached, and an obstacle such as an adjacent building is in front. Another disadvantage is that it cannot be attached to a window opening that is close to the side.

Moreover, in the conventional locking device, the unlocking operation is troublesome,
In the event of an emergency such as a fire, my feelings were upset, and it could take time to unlock and cause a disaster.

In view of the above conventional problems, the present invention can always reliably close the window opening and the entrance and exit, can be easily unlocked in the event of an emergency such as a fire, and can be folded into a small size, so that it can be used outdoors. It is intended to provide a sliding door device that does not hinder the escape.

(Means for Solving the Problems) The structure of the present invention for achieving the above object will be described with reference to the drawings corresponding to the embodiments.
And a fixed frame 3 attached to the doorway, a connecting link mechanism 4 having one end pivotally supported by the fixed frame 3 and the other end movably supported along the fixed frame, and the connecting link mechanism 4
A plurality of grid members 5 which are attached to each of the links 4a to 4d at appropriate intervals and can be folded into a V-shape or a W-shape in a plan view by the connection link mechanism 4 in addition to the connection link mechanism 4 described above. Lock device 6 for locking the end portion to the fixed frame 3
And a lock release lever 18 that engages with the lock device 6 to maintain the lock state and that is released from the lock device 6 and retracts to the indoor side to release the lock state. 4 includes a link engaging piece 26 for engaging the connecting link mechanism 4 with the fixed frame 3 in the locked state.
And a release spring 31 for urging the link engagement piece 26 from the fixed frame 3 so as to release the engaged state from the fixed frame 3 when the lock is released.

(Operation) In the above configuration, the window opening 2 and the entrance / exit are normally closed by a large number of lattice members 5 arranged on the fixed frame 3 via the connection link mechanism 4, and the lattice member 5 is opened from the outside. Even if an attempt is made to operate the locking device 6 that locks the locking device 3 to the fixed frame 3 in the unlocking direction, the unlocking lever 18 that is released from the locking device 6 in conjunction with the unlocking operation retracts to the indoor side and the window opening Since the unlocking is prevented by hitting the window shoji 7 of 2 and the opening / closing door of the entrance / exit, the crime prevention effect can be reliably maintained.

In the event of an emergency such as a fire, the window screen 7
Alternatively, after opening the opening / closing door and operating the lock device 6 in the unlocking direction to retract the unlocking lever 18 to the indoor side and unlocking, the other end of the connecting link mechanism 4 moves toward that one end. By simply pulling the lattice member 5 as described above, the lattice member 5 is folded to the outside of the room, and at this time, the lattice member 5 is folded by the connecting link mechanism 4 into a V shape or a W shape in plan view. Therefore, the amount of protrusion to the outside of the room is small, and therefore even if there is an obstacle on the outside of the room, it can be folded small without any problem.

Particularly, in the present invention, the connection link mechanism 4 is provided with a link engagement piece 26 that engages the connection link mechanism 4 with the fixed frame 3 in the locked state, and fixes the link engagement piece 26 when unlocked. Since the release spring 31 for urging the frame 3 to release the engaged state is provided, the lattice member 5 attached to the connecting link mechanism 4 in the locked state.
Are securely fixed to the fixed frame 3, and the lattice member 5 is applied by an external force.
It does not occur that the is removed from the fixed frame 3. For this reason, it is possible to sufficiently exhibit the crime prevention function under normal conditions.

Moreover, when the locked state of the connecting link mechanism 4 is released from the fixed frame 3, the link engagement piece 26 is automatically released from the fixed frame 3 by the release spring 31 according to the release of the locked state. Since it is biased, the lattice member 5 attached to the connecting link mechanism 4 can be disengaged from the fixed frame 3 without requiring a special operation for releasing the link engaging piece 26, and thereby the window opening. The part 2 and the doorway can be opened to quickly escape to the outside of the room.

(Embodiment) FIGS. 6 (a) and 6 (b) show a state in which a surface lattice (sliding door device) according to an embodiment of the present invention is attached to the outside of the window opening 2 of the building frame 1, The area lattice has window openings 2
A pair of fixed frames 3 and 3 fixed along the upper and lower edges of the pair, a pair of upper and lower connecting link mechanisms 4 and 4 arranged along the outdoor side surfaces of the fixed frames 3 and 3, and both mechanisms. A large number of lattice members 5, 5 ... Arranged at appropriate intervals in 4, 4 and a lock device 6 provided on the indoor side at one end of the upper fixed frame 3. Reference numeral 7 is a sliding door type window shoji arranged in the window opening 2.

The fixed frame 3 is made of extruded aluminum material, and guide grooves 9, 9 are formed on both inner and outer side surfaces of the fixed frame 3 as shown in FIGS. It is fixed to the body 1.

As shown in FIGS. 1 and 2, the connection link mechanism 4 includes four links 4a integrally connected to each other by pins 12.
.About.4d, and is housed in the guide groove 9 on the outdoor side of the fixed frame 3. Of the case links 4a to 4d, the two links 4b and 4c at the center are relatively long and have the same length, and as shown in FIG.
The width 9 is set to be slightly smaller than the width β of the opening 9a, and the opening 9a can be freely moved in and out.

Further, among the links 4a to 4d, the short reference link 4a and the long slide link 4d located on both sides thereof are fitted in the guide groove 9 so as to be movable only.

The locking device 6, as shown in FIGS. 1 and 4,
The guide groove side wall portion 9b is penetrated in the indoor / outdoor direction, and the tip end portion of the lock hole 14 of the block 13 provided in the slide link 4d.
Lock pin 15 that is engaged with the lock pin 15, a lock release spring 16 that biases the lock pin 15 in the lock release direction, and a trapezoidal lock that is freely fitted into the indoor guide groove 9 and that projects on the back surface thereof. A lock holding slider 17 that holds the lock pin 15 in a locked state is formed by bringing the block 17a into contact with the rear end of the lock pin 15 against the lock release spring 16.

In FIG. 1, reference numeral 18 denotes a lock release lever disposed on the fixed frame end side of the lock holding slider 17 in the indoor guide groove 9, the base end of which is fixed to the fixed frame 3 via a pivot shaft 19. Is rotatably supported and is urged toward the indoor side by the erecting spring 20, and as shown by the solid line in FIG.
Engages with one end of the lock holding slider 17 and is housed in the guide groove 9 against the standing spring 20.
This restricts the lock holding slider 17 from sliding in the unlocking direction. One end 21 of the lock release lever 18 is pivotally attached to the center of the inner surface of the lock release lever 18 through a hinge member 22 made of a synthetic resin plate, a leaf spring, etc. A lock lever that engages with both side edges of the opening 9 and is pressed by a lock holding slider 17 so that the lock release lever 18 is retracted to the inside of the room. 24 is a lock holding slider for the indoor guide groove 9
A regulation rail fitted on the center side of the fixed frame with respect to 17 and formed with a regulation step portion 24a at its end for regulating the lock holding slider 17 from sliding more than necessary toward the center side of the fixed frame. ing.

In FIGS. 1 and 3, reference numeral 26 denotes the two central links.
A link engaging piece projectingly provided on one side 4b of the 4b and 4c, and in the locked state of the connecting link mechanism 4, a distal end arc surface 26a of the engaging hole 27 formed in the guide groove side wall portion 9b. By engaging with the portion 27a, the two links 4b, 4c in the center are linearly engaged so as not to protrude from the guide groove 9. Further, in FIG. 1, reference numeral 31 denotes a reference link regulating pin 29 projecting from the reference link 4a and inserted into the elongated hole 28 of the guide groove side wall 9b, and a bolt 30 fixed to the end of the fixed frame 3. A connection link mechanism tension spring, that is, a release spring, stretched between the connection link mechanism 4 when the lock is released, the connection link mechanism 4 is pulled by the spring 31, and the tip end arc of the link tendency piece 26. The surface 26a slides on the peripheral edge portion 27a of the engaging hole 27, the link engaging piece 26 comes out of the engaging hole 27, and as shown by the phantom line in FIG. 1, the two central links 4b, 4c. Is bent to the outside of the room in a slightly "<" shape. Therefore, when the lattice member 5 is pressed toward the reference link 4a from this state, the central two links 4b and 4c are smoothly bent to the outdoor side.

Explaining how to use the above surface lattice, first, as shown by the solid line in FIG. 1, the locking device 6 always keeps the locked state, and the window member 2 is closed by the lattice member 5. Then, when the lock holding slider 17 is slid to the regulation rail 24 side in this state, the engagement state between the slider 17 and the lock release rail 18 is released, and the lock release rail 18 is erected to the indoor side by the erection spring 20. To do. Next, when the lock holding slider 17 is slid to the lock release lever 18 side, the lock release slider 18 is raised by the slider 17 and the lock release lever 18 is raised via the lever 21, but as shown by the phantom line in FIG. Since the tip of the lock contact slider hits the window shoji 7, the lock holding slider 17 is restricted from sliding. In this state, the lock surface 17b of the lock block 17a is engaged with the lock pin 15, so the lock is not released. Therefore, there is no possibility that the lock will be released by operating the lock holding slider 17 from the outside of the room.

In this locked state, the link engagement piece 26 provided on the connection link mechanism 4 is engaged with the fixed frame 3, that is, the engagement hole 27 of the guide groove side wall portion 9b.
The grid member 5 mounted on the fixed frame 3 is securely fixed to the fixed frame 3 and is not separated from the fixed frame 3 by an external force. For this reason, it is possible to sufficiently exhibit the crime prevention function under normal conditions.

Next, in the event of an emergency such as a fire, as shown in FIG. 5, the window screen 7 is opened and the lock holding slider 17 is once slid to the regulation rail 24 side as described above, and then the lock release lever is released. Slide it to the 18 side. In this case, since the window door 7 which has restricted the retraction of the lock release lever 18 to the indoor side is opened, the lock release lever 18 is completely retracted to the indoor side, which causes the lock holding slider 17 to lock. It slides freely without being restricted by the release lever 18, the contact state between the lock block 17a and the lock pin 15 is released, and the tip end of the lock pin 15 is pulled out from the lock hole 14 by the lock release spring 16. , Unlocked.

Along with this unlocking, the release spring 31 automatically urges the link engagement piece 26 to release the engagement state from the fixed frame 3, so that a special operation for releasing the link engagement piece 26 is performed. The grid member 5 attached to the connection link mechanism 4 can be detached from the fixed frame 3 without the need for.

Therefore, next, by gripping the lattice member 5 and pressing the lattice member 5 toward the reference link 4a, the lattice members 5 are shown in FIGS.
As shown in, the center two links 4b, 4c can be bent in a V shape, and if there are a large number of links in the center, they can be appropriately bent in a W shape to fold the lattice member 5 to the outdoor side. As a result, it is possible to make an emergency escape from the room through the opened window opening 2.

(Effects of the Invention) According to the present invention, even if the lock device is operated in the unlocking direction from the outside of the room, the lock release lever separated from the lock device in association with the lock release operation is retracted to the indoor side and the window is opened. Hit the window shoji of the opening and the opening and closing door of the entrance,
Since the lock release is prevented, the crime prevention effect can be reliably maintained.

Also, in the event of an emergency such as a fire, simply operate the lock device from the indoor side in the unlocking direction and then pull on the lattice member to fold the lattice member and open the window openings and entrances. You can easily escape to the outside. In this case, the grid member is configured to be folded into a V-shape or a W-shape in a plan view by the connecting link mechanism. It can be folded without obstacle even if the obstacle is approaching, so that it does not hinder an emergency escape from the window opening or the doorway.

In particular, according to the present invention, the connecting link mechanism is provided with a link engaging piece for engaging the connecting link mechanism with the fixing frame in the locked state, and the link engaging piece is fixed with the fixing frame for unlocking. Since a release spring is provided for urging the engagement state to release the engagement state, the lattice member attached to the connecting link mechanism is securely fixed to the fixing frame in the locked state, and the lattice member is fixed by the external force. There is no possibility of being removed from the frame. For this reason, it is possible to sufficiently exhibit the crime prevention function under normal conditions.

Moreover, when the locked state of the connecting link mechanism is released from the fixed frame, the release spring automatically urges the link engagement piece to release the engaged state from the fixed frame when the locked state is released. , It is possible to disengage the lattice member attached to the connecting link mechanism from the fixed frame without requiring a special operation for releasing the link engaging piece, which allows the window opening and the entrance / exit to open, and It can be escaped to the outside of the room and its opening operation is easy.

[Brief description of drawings]

FIG. 1 is a horizontal sectional view of a main part of a plane lattice (sliding door device) which is an embodiment of the present invention, FIG. 2 is a front view of the main part, and FIG. 3 is a view taken along the line AA in FIG. FIG. 4 is a view taken along the line BB of FIG. 1, FIG. 5 is an explanatory view of an unlocked state, and FIG. 6 (a).
(B) is a front view and a horizontal sectional view of the coplanar lattice, FIG. 7 (a)
(B) is a front view and a horizontal sectional view for explaining a folded state of the same-plane lattice. 2 ... Window opening, 3 ... Fixed frame, 4 ... Connection link mechanism, 5 ...
Lattice member, 6 ... Lock device, 12 ... Pin (pivot), 18 ... Lock release lever, 26 ... Link engagement piece, 31 ... Release spring.

Claims (1)

[Scope of utility model registration request] 1. A fixed frame attached to a window opening or a doorway, a connection link mechanism having one end pivotally supported by the fixed frame and the other end movably supported along the fixed frame, and the connection. Attached to each link of the link mechanism at appropriate intervals,
A large number of lattice members that can be folded in a V-shape or W-shape in plan view by the connecting link mechanism, a locking device that locks the other end of the connecting link mechanism to a fixed frame, and a locking device that engages with the locking device. And the lock release lever for releasing the lock state by retracting from the lock device to the inside of the room and releasing the lock state. While providing a link engagement piece that engages the mechanism with the fixed frame,
A sliding door device provided with a release spring for urging the link engagement piece from the fixed frame when the lock is released.