JP3398815B2 - Dismounting device for disaster prevention door and disaster prevention door provided with the same - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for attaching / detaching a disaster prevention door for a sliding door that can be moved along a rail and opened / closed when an emergency such as a fire occurs, and an improvement of the disaster prevention door including the same.

[0002]

2. Description of the Related Art Movable doors, such as hospitals, nursing homes, offices, warehouses, and heavy sliding doors installed at doorways of general houses, emit smoke when an emergency such as a fire occurs. Due to the need to prevent the spread of fire, it is necessary to keep the doorway closed with a sliding door so that evacuees and firefighters for fire fighting can open the sliding door. Measures are taken.

[0003]

The conventional device is large-scaled and high in cost, and the manufacturing error and the mounting error of each component are too strict, so that much labor is required at the actual mounting site. Met. INDUSTRIAL APPLICABILITY The present invention is a device for attaching / detaching a door for disaster prevention, which has a simple structure, requires a small space, is low in cost, has reliable operability, and can flexibly cope with manufacturing errors and mounting errors of each member. The purpose is to obtain a prepared door for disaster prevention.

[0004]

In order to achieve the above object, in the invention of claim 1, a plate-shaped substrate and a base portion protruding from the upper end edge of the substrate and having a spring retainer at one end thereof are provided. ,
A spring material having a short length and a long length of a plate-shaped metal spring is formed into a substantially L shape, and a spring material having a downward convex protrusion at the tip of the long piece and a plate-shaped upper piece and a lower piece are formed into a substantially inverted L shape. A stopper portion having a swinging metal member formed of a supporting arm that is rotatable around a support shaft projecting from the lower piece and fixed to the substrate, and a rotatable roller at one end and an intermediate portion. A support rod that has a reset rod and an engaging plate at the other end, and a linear spring is hooked around the center, and is rotatable about a fixed axis .
A plunger with an electrical actuating unit and a out member which with a possible out solenoid to release the engagement between the plunger tip and the engaging plate by the energization of the solenoid, the shaft and the fixed shaft The support plate is rotated as a core, the support arm is rotated by the roller about the support shaft as an axis, and the long piece of the spring material is displaced from the substantially horizontal lower limit position to the tilting upper limit position, and the reset is performed. This has been solved by a device for attaching and detaching a disaster prevention door that can be restored to the lower limit position before displacement by pulling the rod downward. Claim 2
In the invention of (1), it is preferable to provide the disaster prevention door attachment / detachment device according to claim 1 in which the convex projecting portion of the tip of the long piece of the spring material has a downward triangle shape. According to the invention of claim 3,
Disaster door of attachment apparatus according to one portion Claim 1 or 2 on the upper side of the rail is fixed to the sliding door device having laid down by movable door rotatable door roller is pivotally connected to the rail upwardly , At the lower limit position of the long piece of the spring material in a substantially horizontal direction, the convex protrusion presses and locks the outer ring body of the door roller, and the energization of the solenoid displaces the long piece of the spring material to the upper limit position in the inclination direction, This has been solved by a disaster prevention door provided with which the outer ring body is unlocked and the reset shaft can be pulled downward to restore the spring piece to the lower limit position in the substantially horizontal direction.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a schematic overall front view showing a fully opened state of an example of the disaster prevention door of the present invention. FIG. 2 is a perspective view of an example of the attachment / detachment device portion used for the disaster prevention door of FIG. 1, where (a) is not energized and (b) is energized. FIG. 3 is a front view of the detachable device portion of FIG.
It is a top view and (c) side view. FIG. 4 is a front view of the attachment / detachment device portion of FIG. 2 when electricity is applied. In the following description, the side of the door viewed from the front (front side in FIG. 1) is the front or the front side and the opposite side is the rear or the back side, and the left and right sides are viewed from the front side to the rear side. Will be described in the following. Also, with regard to the same configuration, part of the reference numerals and detailed description are omitted.

FIG. 1 shows an example of a right-hand opening of a disaster prevention door according to the present invention, which is applied to a large and heavy sliding door of a sliding door type that opens and closes an entrance (the same applies to the following drawings). X and a detaching device Y are provided. Sliding door apparatus X, the door 1 made of heavy movable member in a normal large, by the right-side door roller 3 and the left side door roller 4 attached to the stile on a door 1 gradually toward the closing direction S on the upper wall portion B of the entrance A It is rotatably suspended from a rail 5 which is arranged so as to descend downward and slightly inclined to the left, and the rail 5 is openably and closably mounted. FIG. 1 shows a fully opened state. A handle 2 is usually attached to the door 1. 2 to 4, the main body 6 of the door roller 3 is fixed to a mounting member 7 attached to the upper frame of the door 1, and an outer ring body 8 is rotatably attached to the main shaft 6 via a bearing. The outer ring body 8 is formed with a rail engagement class 8a that engages with the rail 5.

Next, referring to the drawings, the attaching / detaching device Y of the present invention
Will be described in detail. The attachment / detachment device Y includes a stopper portion 10, an electric actuation portion 11 and a base portion 12. Base part 12
Is a plate-shaped substrate 121, and a spring retainer 12 having a notch 122a at the left end, which is provided so as to vertically project on the upper edge of the substrate 121.
2 and a stopper presser 123 having a cushioning member 124 made of rubber or plastic and fixed in a plate shape on the right side surface of the base plate 121.
One of the ends (right in the figure) is fixed to the upper position of one end of the rail 5 by a fixing tool such as a bolt or a wood screw with the front surface of the substrate 121 in the vertical direction. The stopper portion 10 is
It has a spring member 101, a rocking fitting 102, and a support shaft 103. The spring material 101 is a plate-shaped metal spring and is a short piece 101a.
And the long piece 101b are formed into a substantially L shape, and the long piece 101b
The front end portion is provided with a downward convex triangular protruding portion 101c in a front view. Rocking bracket 102
Is a pair of support arms parallel to the substrate 121 in which a plate-shaped upper piece 102b and a lower piece 102a are formed in a substantially inverted L shape, and the lower piece 102a has a substantially U-shaped axial hole when viewed from the right side. 102c is projected. The support shaft 103 penetrates the shaft holes of the pair of support arms 102c and is fixed to the substrate 121 via the liner 103a on the rear side, and the snap ring on the front side.
Support arm 102c by a fastener (not shown) such as a nut
It prevents it from coming off. Here, the convex protrusion 101
The shape of c may not be a downward triangular shape when viewed from the front, but may be another downward shape such as an arc or other curved surface, but the triangular shape is the most preferable in terms of operability in terms of manufacturing. When the right surface of the short piece 101a of the spring material 101 and the left surface of the lower piece 102a of the rocking metal fitting 102 are fixed by a fixing tool such as a bolt or a screw, the spring material 101 reaches a substantially horizontal position as a lower limit position of the long piece 101b. The short piece 101a is rotatable about the support shaft 103 so that the short piece 101a comes into contact with the stopper retainer 123 directly or with the cushioning material 124. The upper limit position of the long piece 101b will be described later.

The electric actuating portion 11 has an engaging member 111 and an entrance / exit member 112. The engagement member 111 has a substantially roof shape when viewed from the front side, is parallel to the substrate 121, and has a pair of support plates 111a whose lower ends are connected to each other.
A roller 111c rotatably supported by a support shaft fixed to a shaft hole formed at the left end of the la 1a, and a shaft-shaped reset rod 111f formed just before the right end of each support plate 111a. And an engaging plate 111e facing the respective support plates 111a at the right end, and a shaft hole penetrating the upper center of the left and right sides, the rear side is fixed to the substrate 121 via the liner 111d, and the front side is a snap ring and a nut. A fixed shaft 111b that is prevented from coming off the support plate 111a by a fixing device (not shown) such as a fixed shaft 111b between the support plates 111a.
From the spring retainer 122 to the linear spring 111g, and the support plate 111a is fixed to the fixed shaft 111b.
With the axis as the axis, it is possible to displace in a seesaw shape from a slope that rises to the left and a slope that descends to the left and rises to the right. here,
It is preferable that the reset rod 111f is provided with a ring-shaped hole at its front end portion so that the reset rod 111f can be easily pulled by a string or the like. The entrance / exit member 112 includes a solenoid 112a and a plunger 112b that can be retracted by being excited by energization of the solenoid 112a.
And a coil spring 112c that urges the plunger 112b in the restoring direction when the plunger 112b is retracted.
Plunger 112b through the liner 112d on the back of the
Are fixed so that the direction of entry and exit of the is slightly downward to the right. The solenoid 112a is connected to a conductive material 112e having a conducting wire and a connector for connecting the terminal side, and the power source section of the fire alarm is connected to the terminal side.

Next, the sliding door device X and the attaching / detaching device Y of the present invention.
The operation of will be described. Substrate 1 of base portion 12 of attachment / detachment device Y
As shown in FIG. 1, the reference numeral 21 is fixed to the right end portion of the upper wall portion B by a fixing tool with the front surface of the substrate 121 in the vertical direction. First, when the electric actuation unit 11 is not energized during normal operation, when the sliding door device X is in the fully opened state, the stopper unit 10
The electric actuating part 11 is placed in the state shown in FIGS. 2 (a) and 3. If it is not in this state, for example, a string or the like hooked in the reset rod 111f ring-shaped hole of the engaging member 111 is pulled to engage the engaging plate 111 of the engaging member 111.
By lowering e, the tip of the plunger 112b of the moving member 112 is projected by the coil spring 112c and engages with the upper end of the engaging plate 111e to support the supporting plate 111.
Hold a in a state of rising to the left and descending to the right. As a result, the short piece 101a of the spring member 101 of the stopper portion 10 is placed in the substantially vertical direction and the long piece 101b is placed in the lower limit position of the substantially horizontal direction, and the protrusion 101c at the tip of the long piece 101b applies the outer ring body 8 of the door roller 3. The door roller 3 is locked by being pressed, and the door 1 is held in the fully opened state by suppressing the rolling of the rail engaging mechanism 8a with respect to the rail 5 which is arranged in the closing direction S and is inclined slightly to the left. Further, since the short piece 101a, the long piece 101b, and the protruding portion 101c are formed of a plate-shaped metal spring, the stopper portion 10 is placed in pressure contact with the outer ring body 8 of the door roller 3. If it is desired to close the door 1 in this normal condition, the handle 2 of the door 1 is manually pushed in the closing direction S, so that the protrusion 101c of the tip end portion of the spring member 101 with respect to the outer ring body 8 of the door roller 3 is lowered. Since the door 1 can be easily disengaged against the pressure on the door 1, the door 1 is closed by a slight downward inclination of the rail 5. If the door 1 once closed is manually pushed in the direction opposite to the closing direction S,
The protruding portion 101c at the tip of the spring member 101 at the lower limit position
The outer ring body 8 of the door roller 3 is engaged with the door 1 to return the door 1 to the fully opened state.

Next, when a fire or the like occurs, the power source of the fire alarm on the terminal side is connected to energize the electric actuation unit 11, and the stopper unit 10 and the electric actuation unit 11 are shown in FIGS.
It is put in the state shown in. The above-mentioned normal electric operation part 1
When the power source of the fire alarm is connected and the solenoid 112a is activated by the energization from the conductive material 112e, the protruding plunger 112b tip of the entrance / exit member 112 in the non-energized state to 1 is resisted to the coil spring 112c. Pull in. As a result, the engagement between the upper end of the engaging plate 111e and the tip of the plunger 112b is released, and the support plate 111a held in the state of rising to the left and descending to the right is displaced to the state of descending to the left and rising to the right. Notch 122 of spring retainer 122
There is a pressing action by the linear spring 111g hung on a, and the support arm 1 is supported by the left end portion of the support plate 111a which descends to the left.
The right part of 02c is pressed and the swinging fitting 102 of the stopper part 10 rotates clockwise around the support shaft 103 as an axis, the short piece 101a of the spring material 101 is inclined clockwise as shown in FIG. 4, and the long piece 101b. Is the protruding portion 1 from the lowermost position in the substantially horizontal direction.
01c is moved to the upper limit position in the inclined direction, the constraint of the outer ring body 8 of the door roller 3 engaged with the protrusion 101c is released, and the door 1 automatically moves in the closing direction S to reach the front closed state. .
To restore the closed door 1 to the open state, the reset rod 111f is pulled to lower the engaging plate 111e,
The tip of the plunger 112b is projected by the coil spring 112c and is engaged with the upper end portion of the engaging plate 111e, as shown in FIG.
After the support plate 111a shown in (b) is restored to the state of rising to the left and descending to the right, if the handle 2 of the door 1 is manually pushed in the direction opposite to the closing direction S, the lower limit position is obtained as described in the normal operation. The outer ring body 8 of the door roller 3 is engaged with the protruding portion 101c that has changed to, and the door 1 can be returned to the fully open state.

The spring material 101 of the stopper portion 10 described above.
Since it is formed of a plate-shaped metal spring, the attachment / detachment device Y can flexibly cope with manufacturing errors and mounting errors of each member. In the above description, the sliding door device X and the attaching / detaching device Y are described as an example of the door 1 opening to the right.
In the case of the left-handed opening, each member may be replaced with the left and right, and thus detailed description thereof will be omitted.

[0012]

The device for attaching and detaching a disaster prevention door according to the present invention has a simple structure, requires a small space, is low in cost, and has a reliable operability. Even if there is an error or an installation error, it can be flexibly dealt with, and the opening and closing of the door can be easily and surely switched in an emergency such as a fire.

[Brief description of drawings]

FIG. 1 is a schematic overall front view showing a fully opened state of an example of a disaster prevention door of the present invention.

FIG. 2 is a perspective view of an example of a detachable device portion used for the disaster prevention door of FIG. 1 when (a) is not energized and (b) is energized.

FIG. 3 (a) when the attaching / detaching device portion of FIG. 2 is not energized.
It is a front view, (b) top view, (c) side view.

FIG. 4 is a front view of the attaching / detaching device portion of FIG. 2 at the time of energization.

[Explanation of symbols]

1 door a 3, 4 door car 5 rails 8 outer ring 8a Rail engaging groove 10 stopper 101 spring material 101a short piece 101b long piece 101c protrusion 102 rocking bracket 102a lower piece 102b upper piece 102c support arm 103 spindle 103a, 111d, 112d liner 103a, 111d, 112d liner 11 Electric actuator 111 Engagement member 111a support plate 111b fixed shaft 111c roller 111e Engagement plate 111f reset rod 111g linear spring 112 Entry / exit members 112a solenoid 112b Plunger 112c coil spring 112e Conductive material 12 Base 121 substrate 122 Spring retainer 122a notch 123 Stopper foot 124 cushioning material X sliding door device Y attachment / detachment device A doorway B Upper wall S closing direction

Claims (3)

(57) [Claims] 1. A long piece formed in a substantially L-shape with a plate-shaped substrate, a base portion protruding from the upper edge of the substrate and having a spring retainer at one end, and a short piece and a long piece of a plate-shaped metal spring. A spring member having a downwardly protruding projecting portion at its tip, a plate-like upper piece and a lower piece are formed into a substantially inverted L shape, and a supporting shaft that is projectingly provided on the lower piece and fixed to the substrate is rotated about an axis. It has a stopper part with a swingable metal fitting consisting of a movable support arm, a rotatable roller at one end, a reset rod at the middle part, and an engaging plate at the other end, and a linear spring hangs around the center part. A supporting plate rotatable about the fixed axis and an electric actuating portion having an in-and-out member having a solenoid biased by a spring biased in the restoring direction and having a solenoid capable of moving in and out by the energization of the solenoid. The engagement between the tip of the plunger and the engaging plate is released, and the fixed shaft serves as the axis. The support plate is rotated to rotate the support arm around the support shaft by the roller, and the long piece of the spring member is displaced from the lower limit position in the substantially horizontal direction to the upper limit position in the tilt direction, and the reset rod is moved. A device for attaching / detaching a door for disaster prevention, wherein the device can be restored to the lower limit position before displacement by pulling it downward. 2. The device for attaching / detaching a disaster prevention door according to claim 1, wherein the convex projecting portion at the tip of the long piece of the spring material has a downward triangular shape. 3. A sliding door device having a movable door in which a rotatable door roller is pivotally mounted on a rail laid above, and a sliding door device according to claim 1 or 2 above the one end of the rail. The attachment / detachment device is fixed, and the convex protrusion presses and locks the outer ring body of the door roller at the lower limit position of the long piece of the spring material in the substantially horizontal direction, and the upper limit position of the long piece of the spring material due to energization of the solenoid. To unlock the outer ring body by
A disaster prevention door equipped with an attaching / detaching device, wherein the long piece of the spring material can be restored to the lower limit position in the substantially horizontal direction by pulling the reset shaft downward.