JP2001173332A - Mounting device of emergency exit face lattice - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting device of an emergency exit face lattice capable of simply and easily mounting and fixing a face lattice mounting frame to a specific position stably within a short time when the face lattice is mounted to the end on an outdoor side of a window opening. SOLUTION: A pair of right and left face lattice mounting frames 7 and 7 are fixed to outdoor side projections 4a and 4a of both right and left jambs 4 and 4 of a sliding door screen sash 1 provided in a window opening 3 of a building through mounting members 8 and 8, and a face lattice 9 is mounted to the face lattice mounting frames 7 and 7 in an openable manner to the outdoor side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting device for an emergency escape surface grid, which is capable of opening the surface grid to the outside of the room and enabling escape in an emergency such as a fire.

[0002]

2. Description of the Related Art In attaching a surface grid to an outdoor end portion of a window opening, a surface grid mounting frame is conventionally fixed directly to a building frame by an anchor hardware. Or a plurality of mounting hardware are fixed at appropriate intervals in the vertical direction on the outdoor ridges of the left and right vertical frames of the sliding door sash provided at the window opening. The surface grid mounting frame was fixed by screwing the surface grid mounting frame to the mounting hardware.

In the method of directly fixing the surface grid mounting frame to the building frame using the anchor hardware, the operation of driving the anchor metal into the building frame requires a great deal of labor and time, and the construction cost is high. Also, in the conventional mounting method of attaching a plurality of mounting hardware to the outdoor ridge of the sash vertical frame and screwing the surface lattice mounting frame to these mounting hardware, the outdoor ridge of the vertical frame is gripped. The mounting hardware that has slipped down
There has been a problem that the mounting state of the surface lattice mounting frame becomes unstable.

Further, since the movable louver surface grid attached to a window opening of a building for the purpose of crime prevention and sunshine adjustment is generally of a fixed type, escape from the window opening is prevented by the surface grid in an emergency such as a fire. In rare cases, it was a disaster. Therefore, in order to prevent such a disaster, a configuration has been proposed in which the surface grid itself is configured to be opened to the outside of the room and is locked so that it cannot be opened in normal times. With the movable louver surface grid, when the louver is open, a hand can be inserted from a gap in the louver, and there is a possibility that the movable louver is unlocked from the outdoor side.

The present invention has been made in view of the above-mentioned problems, and when the surface grid is mounted on the outdoor end of the window opening, the surface grid mounting frame can be stably and easily mounted and fixed at a predetermined position in a short time. An object of the present invention is to provide a mounting device for an emergency escape surface grid. Still another object is that when the surface grid is a movable louver surface grid, when the louver is open, it is impossible to unlock even if a hand is inserted through the gap of the louver, and an emergency escape surface with excellent crime prevention properties. It is an object of the present invention to provide a grid mounting device.

[0006]

According to the first aspect of the present invention, there is provided a mounting device for an emergency escape surface grid, comprising a room for left and right vertical frames 4 and 4 of a sliding door sash 1 provided in a window opening 3 of a building. A pair of left and right surface grid mounting frames 7, 7 is fixed to the outer ridges 4a, 4a via mounting members 8, 8, and a surface grid 9 is mounted on the surface grid mounting frames 7, 7 so as to be openable to the outside of the room. It is characterized by becoming.

According to a second aspect of the present invention, in the mounting device for an emergency escape surface lattice according to the first aspect, each surface lattice mounting frame abuts on the outdoor surface of the outdoor ridge portion 4a of each sash vertical frame 4. The mounting member 8 is provided with a surface grid mounting frame 7.
And a piece 8c that is in contact with the indoor side surface of the outdoor ridge 4a. The piece 8c of the mounting member 8 and the surface grid mounting The mounting member 8 and the surface lattice mounting frame 7 are screwed to the mounting member 8 with the mounting edge 7c of the frame 7 sandwiching the outdoor-side protruding ridge 4a from both the indoor and outdoor sides, and the lower end of the mounting member 8 is sliding door. It is characterized by being supported on the outdoor ridge 6a of the lower horizontal frame 6 of the sash 1 for a shoji.

According to a third aspect of the present invention, there is provided the emergency escape surface grid mounting device according to the first aspect, wherein the mounting member 8 is formed of a long single body formed separately from the surface grid mounting frame 7.
Each of the sash vertical frames 4 has a fitting groove 53 to be fitted to the outdoor ridge 4a. The fitting groove 53 of the mounting member 8 is fitted to the outdoor ridge 4a. In a state where the lower end of the member 8 is supported on the outdoor ridge 6a of the lower horizontal frame 6 of the sliding door sash 1, the mounting member 8 and the surface grid mounting frame 7 are connected by screws 16. Features.

According to a fourth aspect of the present invention, in the mounting device for an emergency escape surface grid according to the first aspect, the mounting member 8 is formed integrally with the surface grid mounting frame 7 to have the same length. The sash vertical frame 4 has a fitting groove 53 fitted to the outdoor ridge 4a. The fitting groove 53 of the mounting member 8 is fitted to the outdoor ridge 4a. Is supported on the outdoor ridge 6a of the lower horizontal frame 6 of the sliding door sash 1.

According to a fifth aspect of the present invention, in the mounting device for an emergency escape surface lattice according to the first aspect, each of the mounting members 48 is fitted at one end to the outdoor protruding ridge 4a of each of the vertical frames 4. Further, the other end portion is formed of a plurality of short pieces which are fixed to the respective lattice mounting frames 47 by screws 16.
8 are arranged in the vertical frames 4 at appropriate intervals in the vertical direction, and the lower end of the lowermost mounting member 48 is supported on the outdoor ridge 6a of the lower horizontal frame 6 of the sliding door sash 1. It is characterized by the following.

According to a sixth aspect of the present invention, there is provided the emergency escape surface grid mounting apparatus according to any one of the first to fifth aspects, wherein the plurality of louvers 11 are opened and closed in conjunction with the surface grid mounting frame 7 or 47. The louver surface grid 9 is pivotally mounted to the outside of the room so as to be swingably openable, and the surface grid 9 is always provided between the surface grid mounting frame 7 or 47 and the free end side of the surface grid 9. A locking device 19 that locks the door 47 and unlocks it by operating the unlocking operation unit 20 in an emergency is provided. The unlocking operation unit 20 is provided on the indoor side of the surface lattice mounting frame 7 or 47, Louver 1
The unlocking operation can be performed only when 1 is closed.

A seventh aspect of the present invention is the emergency escape surface grid mounting device according to the sixth aspect, wherein the locking device 19 comprises a hook 23 provided on the surface grid mounting frame 7 or 47 side, and a surface grid 9.
And a hook locking portion 27 urged by a spring 26 so as to always lock the hook 23 in the locking position, and the hook locking portion 27 is unlocked from the locking position against the spring 26. And an unlocking button operation unit 20 for pushing or pulling to move to the position.
Unlocking operation is blocked until the louver 11 is closed.

According to an eighth aspect of the present invention, in the mounting device for an emergency escape surface lattice according to the sixth aspect, the locking device 19 comprises a hook 23 provided on the surface lattice mounting frame 7 or 47 side, and a surface lattice 9.
And a hook locking portion 27 urged by a spring 26 so as to always lock the hook 23 in the locking position, and the hook locking portion 27 is unlocked from the locking position against the spring 26. An unlocking lever operating section 70 that is pivotally operated by a lever 80 so as to be moved to a position.
Is characterized in that the unlocking operation is prevented until the louver 11 is closed.

According to a ninth aspect of the present invention, in the mounting device for an emergency escape surface lattice according to the fourth aspect, the locking device 39 comprises a lock pin 41 provided on the side of the surface lattice mounting frame 7 or 47, and a surface lattice peripheral frame. 10, a rotating piece 42 that always locks the lock pin 41 at the locking position and releases the lock pin 41 at a fixed rotation position, and a roller cam 43 fixed to the rotation shaft 11 a of the required louver 11. A cam follower 44 that engages with the roller cam 43 and rotates coaxially and integrally with the rotating piece 42; and an unlocking handle 40 that projects integrally from the cam follower 44 in the radial direction. The follower 44 cannot rotate with respect to the roller cam 43 when the louver 11 is open, and can rotate with respect to the roller cam 43 when the louver 11 is closed. Characterized in that the unlocking handle 40 were to be unlocked by rotating the rotary piece 42 to lock pin release position.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a front view of a movable louver lattice in a closed state as viewed from the outdoor side, and FIG. 2 is a partial cross-sectional view of the movable louver lattice at an upper end side in an open state. . 3 is an enlarged sectional view taken along line XX of FIG. 1, FIG. 4 is a sectional view taken along line YY of FIG. 2, and FIG. 5 is a sectional view taken along line ZZ of FIG. In these figures, 1 is a window opening 3 of a building frame 2.
The sliding door sash attached to the left and right vertical frames 4, 4
And a pair of upper and lower horizontal frames 5 and 6. A pair of sliding door shojis (not shown) are erected in the sash 1 in a sliding manner, and a screen door shoji (not shown) is erected at the outdoor end. Also, a pair of left and right surface grid mounting frames 7, 7 are fixed to the outdoor end of the sash 1 via mounting members 8, 8, respectively, and a movable louver surface grid 9 is mounted on the left and right double-sided grid mounting frames 7, 7. It is pivotally attached to the outside of the room so as to swing open around the upper end.

The movable louver surface grid 9 includes left and right vertical frames 10.
a, 10a and upper and lower horizontal frames 10b, 10c.
Are arranged in a plurality of upper and lower stages, and both end shaft portions 11a, 11a of each louver 11 are supported by left and right vertical frames 10a, 10a, respectively, and a crank arm 12 projecting from one end shaft portion 11a of each louver 11 has one end. In the vertical frame 10a
The louver 1 is pivotally connected by the
1 opens and closes in conjunction with each other.

As shown in FIG. 6, one of the plurality of louvers 11 has a louver opening / closing operation handle 14 at an end of a side surface facing the indoor side when the louver is closed, and a lock position indicated by a solid line in FIG. And a lock release position indicated by a virtual line, the handle 14 is set to the lock release position, and the louver 11 is opened and closed. When the louver 11 is operated to the fully open position (horizontal position) and the handle 14 is turned to the lock position, the lock pin 15 engages with the pin hole a on the side of the vertical frame 10a, whereby each louver 11 is fully opened. Locked in position. Similarly, when the louver 11 is operated to the half-open position (inclination position), the lock pin 15 engages with the pin hole b,
When each louver 11 is locked at the half-open position, and when the louver 11 is operated to the fully closed position (substantially vertical position), the lock pin 15 engages the pin hole c, and each louver 11 is locked at the fully closed position. Is done. FIG. 7 shows a state where the louver 11 is locked at the half-open position.

As can be seen from FIGS. 2 and 3, each surface lattice mounting frame 7 protrudes inward and vertically from the main frame portion 7a and the main frame portion 7a, and faces the indoor side surface of the surface lattice peripheral frame 10. Frame portion 7b and a mounting edge protruding outward and vertically from the indoor side edge of the main frame portion 7a and abutting against the outdoor side surface of the outdoor side ridge portion 4a of the vertical frame 4 of the sash 1. 7c. Each mounting member 8 is formed separately from the surface grid mounting frame 7, and includes a main body portion 8 a facing the main frame portion 7 a of the surface grid mounting frame 7 and a piece facing the sub-frame portion 7 b. 8b,
A piece 8c opposed to the mounting edge 7c.

In mounting the movable louver surface grid 9, as shown in FIGS. 2 and 3, the sliding door sash 1 is used.
The mounting edge 7c of the surface grid mounting frame 7 is brought into contact with the outdoor side surface of the outdoor projecting ridge 4a of each vertical frame 4 and the mounting member 8 is attached to the indoor side surface of the outdoor projecting ridge 4a. The outer side projection 4a is sandwiched between the mounting edge 7c of the surface grid mounting frame 7 and the piece 8c of the mounting member 8 by bringing the piece 8c into contact with the main body of the mounting member 8. 8a Bottom horizontal frame 6
(See FIG. 3). In such a state, a screw 16 is screwed into the sub-frame portion 7b side of the surface grid mounting frame 7 from the piece 8c side of the mounting member 8 and tightened, so that a pair of left and right surface grid mounting frames is attached to the outdoor end of the sash 1. 7, 7 are fixed via mounting members 8, 8, respectively. For example, two screws 16 may be screwed into each of the upper and lower ends of the surface lattice mounting frame 7.

As described above, the mounting edge 7c of the surface grid mounting frame 7 is brought into contact with the outdoor side surface of the outdoor ridge 4a of the sash vertical frame 4, and the elongated surface is formed on the indoor side surface of the outdoor ridge 4a. The parts 8c of the mounting member 8 are brought into contact with each other, and the screws 16 are fixed to the mounting member 7 while the outdoor protruding ridges 4a are sandwiched between the mounting edge 7c of the surface grid mounting frame 7 and the parts 8c of the mounting member 8. As a result, the outdoor ridge portion 4a of the sash vertical frame 4 is held by the mounting edge 7c of the surface grid mounting frame 7 and the piece 8c of the mounting member 8 from both the indoor and outdoor sides over substantially the entire length thereof. When the screen grid 9 is mounted on the screen grid mounting frame 7, the outdoor ridge 4a of the sash vertical frame 4
Even if a load on the side of the surface grid 9 is applied, there is no possibility that the outdoor-side ridge 4a is locally deformed or the ridge 4a is damaged. In addition, by supporting the lower end of the main body 8a of the mounting member 8 on the outdoor ridge 6a of the lower horizontal frame 6, the mounting member 8 is shifted down along the outdoor ridge 4a of the sash vertical frame 4. And therefore the screen grid mounting frame 7
Can be stably and reliably fixed at a predetermined position.

As described above, the left and right double-sided grid mounting frames 7, 7 which are fixed to the outdoor end of the sliding door sash 1 are formed on the upper ends of the respective grids. The upper ends of the frames 10a, 10a are respectively connected to the pivot pins 17,1.
7 by means of a movable louver surface grid 9
However, it is made to be in a state where it can swing open to the outside of the room around its upper end.

Also, the lower end of the indoor side surface of one of the left and right vertical stairs 10a of the surface lattice peripheral frame 10 and the lower end of the outdoor side surface of the sub-frame portion 7b of the surface lattice mounting frame 7 opposed to this are mutually attached. The movable louver surface grid 9 is brought into contact with the double-sided grid mounting frame 7, 7
And holding means 18a and 18b for holding the closed state. The holding means 18a, 18b may be composed of a concave portion and a convex portion which are detachably engaged with each other,
It may be composed of a magnet piece and a magnetic piece adsorbed on the magnet piece.

FIGS. 8 to 17 show another embodiment of the surface grid mounting frame 7 and the mounting member 8 which are different from those shown in FIGS. The same members as those in the embodiment shown in FIGS. 2 and 3 are denoted by the same reference numerals.

First, the mounting member 8 shown in FIGS.
Each vertical frame 4 that is formed integrally with and has the same length as the surface lattice mounting frame 7 and that forms the sliding door shoji sash 1.
Is provided with a fitting groove 53 to be fitted to the outdoor-side ridge 4a. In mounting the surface grid 9, the fitting groove 53 of the mounting member 8 is fitted into the outdoor protruding ridge 4a, and the lower end of the mounting member 8 is fixed in the same manner as in the embodiment shown in FIGS. The sliding door sash 1 is supported on the outdoor ridge 6a of the lower horizontal frame 6 of the sliding door sash 1, and in this state, the surface grid 9 may be attached to the pair of surface grid mounting frames 7 on both sides so as to be openable to the outdoor. . According to this, since the surface grid mounting frame 7 and the mounting member 8 are integrally formed, the manufacturing cost is very low, and the mounting operation of the surface grid 9 can be performed more easily.

The mounting member 8 shown in FIG.
Similarly to the above embodiment, the frame is formed separately from the surface lattice mounting frame 7 and includes a main body 8a and a piece 8b extending at a right angle from one end of the main body 8a. The vertical frame 4 is provided with a fitting groove 53 to be fitted into the outdoor projecting ridge 4a, and the outer surface of the main body 8a is provided with a fitting groove 54. The surface lattice mounting frame 7 includes a main frame portion 7a and a sub-frame portion 7b abutting on a piece 8b of the mounting member 8. In mounting, the fitting groove 53 of the mounting member 8 is fitted into the outdoor ridge 4 a of the sash vertical frame 4, and the piece 8 b of the mounting member 8 is brought into contact with the sub-frame 7 b of the surface grid mounting frame 7. At the same time, one end of the main frame portion 7a is fitted into the fitting groove 54 of the mounting member 8, and the piece 8b of the mounting member 8 and the sub-frame portion 7b of the surface lattice mounting frame 7 are screwed together with screws 16. Then, the surface lattice 9 is attached to the pair of surface lattice attachment frames 7 on both sides in the same manner as described above. Of course, also in this case, the lower end of the mounting member 8 is supported on the outdoor ridge 6a of the lower horizontal frame 6 of the sliding door sash 1.

The mounting member 8 shown in FIG. 11 is formed integrally with the surface grid mounting frame 7 and has the same length as the embodiment shown in FIG. It has a fitting groove 53 to be fitted to the ridge 4a. The surface lattice mounting frame 7 has a sub-frame portion 7b projecting at right angles to the main frame portion 7a. At the time of mounting, the fitting groove 53 of the mounting member 8 is fitted into the outdoor protruding ridge 4a, and the vertical frame 10a of the surface grid peripheral frame 10 is brought into contact with the sub-frame portion 7b of the surface grid mounting frame 7. In this state, the surface grid 9 is attached to the double-sided grid mounting frame 7,
7 as described above.

The surface grid mounting frame 7 and the mounting member 8 shown in FIG. 12 are the same as those in the embodiment of FIG.
A support ridge 55 that can be supported on the building skeleton 2 side
Is different in that a plurality of articles are provided.

In the embodiment shown in FIGS. 13 and 14, the surface lattice mounting frame 7 and the mounting member 8 are integrally formed, but the mounting member 8 is provided with the outdoor ridge of each sash vertical frame 4. Part 4
a, and a fitting groove 56 for bracket mounting is provided on the surface lattice mounting frame 7 side. When the surface grid 9 is mounted, the fitting groove 53 of the mounting member 8 is fitted into the outdoor protrusion 4a, and the one end 57a of the bracket 57 is fitted into the fitting groove 56 of the surface grid mounting frame 7.
And the other end 5 of the bracket 57
7b may be fixed to the horizontal rail 9a of the grid-shaped grid 9 with screws 59. In this case, each bracket 57 is attached to the surface grid mounting frame 7.
, The movement can be adjusted in the indoor and outdoor directions, and the movement can be adjusted in the longitudinal direction of the horizontal residue 9a with respect to the horizontal rail 9a of the surface grid 9.

The embodiment shown in FIG.
And the mounting member 8 are integrally formed.
Has a fitting groove 53 fitted into the outdoor ridge 4 a of each sash vertical frame 4, and the surface grid mounting frame 7
Of the fitting groove 60. When the grid-shaped surface grid 9 is mounted, the fitting groove 53 of the mounting member 8 is used.
Are fitted to the outdoor side ridges 4a, and each of the horizontal rails 9a forming the grid-like surface grid 9 is fitted in the fitting groove 60 of the surface grid mounting frame 7.
May be fitted and the screw 59 may be fixed.

The embodiment shown in FIG.
And the mounting member 8 are integrally formed.
Has a fitting groove 53 to be fitted into the outdoor ridge 4a of each sash vertical frame 4, and the surface lattice mounting frame 7 has a sub-frame 7b projecting from the main frame 7a at a right angle. . When the surface grid 9 is mounted, the fitting groove 53 of the mounting member 8 is fitted into the outdoor protrusion 4a, and the sub-frame portion 7b of the surface grid mounting frame 7 is fitted.
May be fixed to the end of each of the horizontal rails 9a of the grid-like surface grid 9 with screws 59.

The embodiment shown in FIG. 17 is almost the same as the embodiment shown in FIG. 15, in which the outdoor side wall 60b of the fitting groove 60 provided at the end of the surface lattice mounting frame 7 is larger than the indoor side wall 60a. The only difference is that it is formed shallow. Each of the horizontal rails 9 of the grid-like surface grid 9 extends from the outdoor side wall 60 b of the fitting groove 60.
The screw 59 is fixed to a.

The movable louver surface grid 9 shown in FIGS.
In the mounting device, a pair of left and right surface grid mounting frames 7, 7
The movable louver surface grid 9 is mounted on the lower surface (free end) of the surface lattice peripheral frame 10 and the surface lattice mounting frame 7 is attached to one of the surface lattice mounting frames 7 so that the movable louver surface lattice 9 can be swingably released to the outside of the room. Grid frame 10
Locking device 1 on the surface grid mounting frame 7 and unlocking by unlocking the unlocking operation unit 20 in an emergency such as a fire.
An unlocking operation unit 20 is provided at a position on the indoor side of the surface lattice mounting frame 7 so that the unlocking operation can be performed only when the louver 11 is closed.

The locking device 19 is mainly described with reference to FIG.
The locking device 19 will be described in detail with reference to FIGS. 8 to 20. The locking device 19 is provided with a hook 23 provided at the lower end of the sub-frame portion 7b of the surface lattice mounting frame 7 so as to protrude from its outdoor side surface.
A first slide member 21 and a second slide member 22 provided in the vertical frame 10a of the surface lattice peripheral frame 10; and a lower end of the sub-frame portion 7b of the surface lattice mounting frame 7 operably provided from the indoor side. And an unlocking push button operation unit 20 (unlocking operation unit).

The first slide member 21 is operatively connected to the connecting rod 13 which moves up and down when the louver 11 is opened and closed, and slides up and down. The first slide member 21 is provided with an opening for receiving a hook 23 provided on the surface lattice mounting frame 7 side. 24 and a first slide accompanying the downward movement of the connecting rod 13 when the louver 11 rotates from a fully open position (horizontal posture shown by a solid line in FIG. 5) to a fully closed position (substantially vertical posture shown by a virtual line in FIG. 5). When the member 21 moves down,
The second slide member 22 is moved a predetermined distance (α) only slightly before the louver 11 is fully closed to the fully closed position.
/ 2) and a pushing piece 25 for pushing downward. The second slide member 22 is slidably disposed between the first slide member 21 and the inner surface of the vertical frame 10a of the surface lattice frame 10, and is upwardly moved by a coil spring 26 interposed between the first slide member 21 and the vertical frame 10a. And has a hook locking portion 27 for locking the hook 23 at the locking position.

The push button operating section 20 is a short column-shaped operating piece 2 projecting from the inside of the cylindrical case 28 attached to the sub-frame section 7b of the surface lattice mounting frame 7 through the sub-frame section 7b.
9 and the button 3 whose tip is fitted in the cylindrical case 28.
0, and a coil spring 31 interposed between the button 30 and the operation piece 29. The tip of the operation piece 29 forms a flat surface 29a whose upper half is orthogonal to the axial direction. The lower half forms an inclined surface 29b. As shown in FIG. 18, the operating piece 29 is always
The flat surface 29a at the tip end of the hole enters the through hole 32 opened in the vertical frame 10a, and the flat surface 29a of the leading end comes into contact with the second slide member 22, thereby preventing the push operation by the button 30.

The operation of the locking device 19 configured as described above will be described. First, FIG. 18 shows a locked state when the louver 11 of the movable louver surface lattice 9 is in the fully open position (horizontal posture). The first slide member 21 is at the upper limit position, and the second slide member 22 is
6, the hook 23 is completely urged upward and the hook 23 is completely locked by the hook locking portion 27. Further, the push button operation unit 20 is provided with a flat surface 29 a at the tip of the operation piece 29.
Are in contact with the second slide member 22 and are in an unlocking disabled state.

The louver opening / closing operation handle 14 (see FIG. 6) is rotated downward to move the louver 11 from a fully open position (horizontal posture) to a half open position (inclination posture) and further to a fully closed position (substantially vertical posture). , The connecting rod 13 moves downward, and accordingly, the first slide member 21
As shown in FIG. 8, the stroke S from point A to point C is lowered. At this time, at the point B slightly before the point C where the louver 11 becomes the fully closed position, the pushing piece 25 of the first slide member 21 is moved.
Abuts on the lower end of the opening 33 of the second slide member 22, and pushes the second slide member 22 against the spring 26 by a distance (α / 2) from the point B to the point C, thereby locking the hook. The locking length of the hook 23 with respect to the portion 27 is reduced to approximately half the previous length, and this state is shown in FIG.

That is, as shown in FIG.
Is rotated from the fully-open position to the fully-closed position, the locking length of the hook 23 with respect to the hook locking portion 27 is reduced from approximately α to half of α / 2, and the second slide member 2 is rotated.
The inclined surface 29b of the distal end of the operating piece 29 is slightly engaged with the lower end edge of the operating piece entry opening 34 opened at the upper end side of 2. The louver 11 is locked at the fully closed position by engaging the lock pin 15 with the pin hole c at the fully closed position.

When the button 30 of the push-button operating section 20 is pressed from such a state, the operating piece 29 is inserted into the opening 34 via the coil spring 31 and is engaged with the lower edge thereof. When the second slide member 22 moves downward against the coil spring 26 by the wedge action of the inclined surface 29b, and the button 30 is sufficiently pressed, the second slide member 22 is moved to the position shown in FIG. From the hook engaging portion 2 as shown in FIG.
7 is moved to the unlocking position, whereby the hook 23 is released from the hook locking portion 27, that is, the hook is unlocked. In this unlocked state, if the lower end side of the movable louver surface grid 9 is pushed from the indoor side to the outdoor side, the surface grid 9 is pivotally released around the upper end to the outdoor side and can escape to the outdoor side. It becomes a state.

After the button 30 is depressed to release the hook 23 from the hook locking portion 27 as described above, the button 30 is released and the spring 31 of the push button operating portion 20 is released.
The operating piece 29 is retracted by the urging force, and the second slide member 22 is moved upward by α / 2 by the urging force of the spring 26, so that the locking device 19 is in a state as shown in FIG. When the louver 11 is rotated from this state to the fully open position, the first slide member 21 returns to the upper limit position. At this time, the second slide member 22 further moves upward by α / 2 by the urging force of the spring 26. It returns to its original position, and the locking device 19 is in the state shown in FIG.

When the screen grid 9 is closed and locked, the button 30 of the push-button operating section 20 is pressed with the louver 11 in the fully closed position to reach the state shown in FIG. After the button 30 is released after the member 21 has penetrated to the opening 24, the hook engaging portion 27 is engaged with the hook 23 to be in a locked state.

As described above, in the locking device 19, unless the louver 11 is completely closed, the unlocking operation using the button 30 of the push button operation unit 20 cannot be performed. Accordingly, when the louver 11 is open, the hand cannot be unlocked by inserting a hand through the gap of the louver 11 and pressing the button 30 of the unlocking operation unit 20, so that the movable louver surface grid 9 cannot be released without permission. You will not be able to enter the room. In this case, even if the louver 11 is completely closed, it is a matter of course that the surface grid 9 cannot be released unless the unlocking operation by the button 30 of the unlocking operation unit 20 is performed.

In the locking device 19, the first slide member 21 is linked to the connecting rod 13 which moves up and down when the louver 11 is opened and closed. However, since the connecting rod 13 swings right and left and moves in an arc. In order to absorb this arc movement, for example, a lateral groove-shaped connecting portion 35 is provided on the connecting rod 13 side, and
The connection pin 36 on the slide member 21 side is engaged. In addition, the first slide member 21 appropriately guides the vertical slide movement by the guide member 37 fixed to the surface lattice peripheral frame 10 side.

The locking device 19 described above with reference to FIGS. 18 to 20 has the push-button operation unit 20 for pushing and unlocking the button 30. Instead of such a push-button system, a pull-button system is used. May be adopted. FIG. 21 shows a locking device 19 having a pull-button operation section 20 for pulling and unlocking a button 30 ′. In the locking device 19 shown in FIG. 21, (A) and (B) of FIG.
When the button 30 'of the pull button operating portion 20' is pulled against the urging force of the coil spring 31, the operating piece 29 is moved from the outside of the opening 34 to the opening 34.
The second slide member 22 moves downward against the coil spring 26 by the wedge action of the inclined surface 29b of the operation piece 29 which engages with the lower end edge of the button
Is fully pulled, the second slide member 22
Moves further downward from the position shown in FIG. 7A, and the hook locking portion 27 moves to the unlocking position as shown in FIG. The lock is released, that is, the lock is released. In this unlocked state, if the lower end side of the movable louver surface grid 9 is pushed from the indoor side to the outdoor side, the surface grid 9 is pivotally released around the upper end to the outdoor side and can escape to the outdoor side. It becomes a state.

Also, as described above, the button 30 or 30 '
Push or pull button operation unit 2 to push or pull to unlock
Instead of 0 and 20 ', a rotating lever system that unlocks by rotating the lever 80 may be employed. FIG. 22 shows the locking device 19 having a lever operation section 70 for rotating and unlocking the lever 80. In the locking device 19 shown in FIG. 22, a lever 80 is pivotally attached to the hemispherical case 28 so as to be vertically rotatable, and the operating piece 29 is always opened by a leaf spring 31 as shown in FIG. The lever 80 is biased to a position at which the lever 80 is disengaged from the room 34 into the room, and in this position, the lever 80 is held in an upward posture (or a downward posture).

The lever 80 of the lever operating section 70
22A is turned from the upward position in FIG. 22A to the indoor side, the operating piece 29 held by the leaf spring 31 is pushed by the tip of the lever 80, and the operating piece 29 is The second slide member 22 is moved downward against the coil spring 26 by the wedge action of the inclined surface 29b engaging with the lower end edge while protruding into the opening 34 against 2B, the second slide member 22 further moves down from the position shown in FIG. 2A, and the hook locking portion 27 as shown in FIG.
Moves to the unlocked position, and is in the unlocked state. According to such a rotating lever system, the unlocking operation becomes simple and easy.

FIGS. 23 to 25 show a locking device 39 according to another embodiment. The locking device 39 includes a lock pin 41 provided on the surface lattice mounting frame 7 side and a surface lattice peripheral frame 10. A lock piece 41 is provided on the side, and the lock pin 41 is always locked in the locking position, and the lock piece 41 that can release the lock pin 41 at a fixed rotation position is fixed to the rotation shaft 11 a of one required louver 11. Roller cam 43,
A cam follower 44 engaged with the roller cam 43 and coaxially and integrally rotated with the rotating piece 42;
4 and an unlocking handle 40 as an unlocking operation part integrally protruded in the radial direction. Cam follower 4
23. When the louver 11 is opened as shown in FIG. 23 and cannot be rotated with respect to the roller cam 43, and when the louver 11 is closed as shown in FIG. Become rotatable,
The unlocking handle 40 rotates the rotating piece 42 to the lock pin releasing position so that the unlocking can be performed.

An engaging groove 42 extending radially from the center of the rotating piece 42 is formed on the outer end face of the rotating piece 42 so that the engaging groove 42 always extends upward from the center of the rotating piece 42. At the lower end of the engaging groove 42 (the rotating piece 42).
The center of the movable louver surface grid 9 is locked. The cam follower 44 is formed in a roller shape having a smaller diameter than the roller cam 43.

The roller cam 43 has a part of its outer peripheral surface,
An arc-shaped recess 45 into which the outer peripheral portion of the cam follower 44 fits is formed, and an arc-shaped concave portion 46 into which the outer peripheral portion of the roller cam 43 fits is formed in a part of the outer peripheral surface of the cam follower 44. As shown in FIG. 23, only when the louver 11 is in the fully closed position (substantially vertical posture), the outer peripheral portion of the cam follower 44 fits into the arc-shaped concave portion 45 of the roller cam 43, and the cam follower 44 Is rotatable with respect to the roller cam 43, so that the unlocking handle 40 can be rotated around the cam follower 44. However, when the louver 11 is not in the fully closed position, that is, when the louver 11 is fully opened as shown in FIG. In the open position such as the half-open position shown in the drawing, the arc-shaped concave portion 46 of the cam follower 44 engages with the outer peripheral surface of the roller cam 43 and Since the rotation of the follower 44 is disabled, can not turning operation of the unlocking handle 40,
The handle 40 is fixed in a vertical position so as to be accommodated in the vertical frame 10a of the surface lattice frame 10 as shown in the figure.

Therefore, in this locking device 39, when each louver 11 is rotated to the fully closed position, the unlocking handle 40 can be operated to rotate. When the unlocking handle 40 in the upright posture is turned so as to be tilted forward, the rotating piece 42 rotates integrally with the handle 40, and the engaging groove 42 of the rotating piece 42 is positioned at the center of the rotating piece 42. When the handle 40 is pushed to the outside of the room from this state, the lock pin 41 is disengaged from the engagement groove 42 of the rotating piece 42 as shown in FIG. The unlocked state is established, whereby the movable louver surface grid 9 is pivotally released around the upper end toward the outside of the room.

FIG. 26 is a cross-sectional view similar to FIG. 2 showing a mounting device for an emergency escape surface grid according to another embodiment.
FIG. 27 shows a mounting member 48 used in the mounting device. FIG. 28 is a longitudinal sectional view of the same grid mounting device. In this embodiment, each surface grid mounting frame 47 includes a main frame portion 47a.
And a sub-frame portion 47b projecting inward and perpendicularly from one side edge of the main frame portion 47a and disposed so as to face the indoor side surface of the surface lattice peripheral frame 10 to form a substantially L-shaped cross section. I have.

One end of each mounting member 48 is fitted to the outdoor ridge 4 a of the vertical frame 4 of the sliding door sash 1, and the other end is screwed to the surface grid mounting frame 47. It is made of a short piece. This mounting member 48 is shown in FIG.
As shown in FIG. 5, the steel plate is formed into a substantially U-shape in a plan view by pressing a steel plate. One end of the steel plate is bent outward to form an outer ridge 4 a of the vertical frame 4. A groove-shaped fitting portion 51 to be fitted is formed, and a plurality of screw holes 52 are provided at the other end.

In mounting the movable louver surface grid 9, first, the mounting members 48 are mounted on, for example, two upper and lower portions of the outdoor ridge 4a of each vertical frame 4 of the sliding door sash 1 and these mounting members 48 are attached. , 48 each frame grid mounting frame 4
7 is attached. That is, each of the mounting members 48 has a fitting portion 51 on one end thereof fitted to the outdoor protruding ridge 4a of the sash vertical frame 4, and the lower mounting member 48 has, as shown in FIG. The lower end is locked on the outdoor ridge 6a of the sash lower horizontal frame 6.

Thus, the outdoor ridges 4 of each sash vertical frame 4
a mounting member 4 having one end attached to each of the two upper and lower portions of a
8 and 48, the sub-frame portion 4 of the surface grid mounting frame 47
7b, and screw 1 into the screw hole 52 of the mounting member 48.
6 is screwed into the sub-frame portion 47b of the surface grid mounting frame 47 and tightened, whereby the pair of left and right surface grid mounting frames 47, 47 is fixed to the outdoor end of the sash 1 via the mounting members 48, 48.

In the mounting device as described above, the lower mounting member 48 for fixing the surface lattice mounting frame 47 to the outdoor ridge 4a of the sash vertical frame 4 is connected to the outdoor ridge of the sash lower horizontal frame 6. By locking on the ridge 6a, the mounting member 48 is prevented from being displaced and lowered along the outdoor protruding ridge 4a of the sash vertical frame 4, so that the surface lattice mounting frame 47 is securely fixed at a predetermined position. Can be.

The movable louver surface grid 9 of the above-described embodiment.
In the embodiment, the louvers 11 are arranged in a plurality of stages vertically and horizontally in the surface lattice peripheral frame 10, but the louvers 11 may be arranged vertically and horizontally in the left and right directions. In addition, the movable louver surface grid is
One of the left and right ends may be pivotally attached to one of the surface lattice mounting frames 7, 7, and the other end of the surface lattice may be pivotally opened about the pivoted portion.

The movable louver surface lattice shown in FIGS. 29 and 30 is composed of a pair of left and right double-sided surface lattices 9, 9, each of which is pivoted toward the center of the window in the left-right direction. 29, it can be opened from both left and right sides around its center, and is always fixed to the surface lattice mounting frames 7, 7 as shown by the solid line in FIG. And in an emergency,
By unlocking, for example, the push-button operation unit 20 of the locking device, the double-sided grids 9, 9 are opened to the outside from both left and right sides around the pivots 65, 65 as shown by phantom lines in FIG. Is done. The movable louver surface lattice shown in FIG.
As in the case of the surface grating shown in FIG.
The double-sided grids 9 and 9 shown in FIG.
Are pivotally attached to the left and right ends of the window, respectively, and when the locking device is unlocked in an emergency, as shown in the phantom line, from the center of the window around the pivots 65, 65, respectively. It is open to the public. Further, the emergency escape surface lattice according to the present invention is not limited to the movable louver surface lattice, but may be a fixed louver surface lattice, or may be a lattice lattice as shown in FIGS. 13 to 17.

[0058]

According to the mounting device for an emergency escape surface grid according to the first aspect of the present invention, a pair of left and right surface grids are mounted on the outdoor ridges of the left and right vertical frames of the sliding door sash through a mounting member. Since the frame is fixed and the surface grid is attached to the surface grid mounting frame so that it can be opened to the outside of the room, the surface grid mounting frame can be easily and easily mounted and fixed in a short time, and the construction cost is reduced. Can be achieved.

According to the emergency escape surface grid mounting device of the second aspect of the present invention, each surface grid mounting frame has a mounting edge portion which comes into contact with the outdoor surface of the outdoor ridge of the sash vertical frame. The mounting member is formed of a long single piece formed separately from the surface lattice mounting frame, and has a piece that is in contact with the indoor side surface of the outdoor ridge portion. Since the mounting member and the surface grid mounting frame are screw-connected to each other by sandwiching the outdoor protruding ridge portion from both the indoor and outdoor sides by the piece and the mounting edge portion of the surface grid mounting frame, the outdoor protruding ridge of the sash vertical frame is provided. The portion is held by the mounting edge of the surface grid mounting frame and the mounting member over substantially the entire length from both indoor and outdoor sides, and therefore, when the surface grid is mounted on the surface grid mounting frame, the outdoor ridge of the sash vertical frame. Even if a load on the surface grid side is applied to the outside, the outdoor ridge may locally deform or damage the ridge. Les is not. In addition, by supporting the lower end of the elongated mounting member on the outdoor ridge of the sash lower horizontal frame, the mounting member does not shift down along the outdoor ridge of the sash vertical frame, so The grid mounting frame can be stably and reliably fixed at a predetermined position.

According to the third aspect of the present invention, the mounting member is an elongated unit formed separately from the surface grid mounting frame. The fitting groove of the mounting member is fitted to the outdoor ridge, and the mounting member and the surface grid mounting frame are screwed together. Thus, the fitting groove of the mounting member is formed on the outdoor ridge of the sash vertical frame over substantially the entire length thereof, so that even if a load on the surface lattice side is applied to the outdoor ridge of the sash vertical frame, The outer ridge portion is locally deformed, there is no risk of damaging the ridge portion, and the lower end of the mounting member is supported on the outdoor ridge portion of the horizontal frame below the sash, so that the surface lattice mounting frame is formed. It can be stably and reliably fixed at a predetermined position.

According to the mounting device for an emergency escape surface grid according to the fourth aspect of the present invention, the mounting member is formed integrally with the surface grid mounting frame to have the same length as the surface grid mounting frame. The fitting member has a fitting groove to be fitted to the ridge, and the fitting groove of the mounting member is fitted to the outdoor ridge, so that the mounting member and the surface lattice mounting frame are connected to the sash vertical frame. It can be easily and easily mounted, and the lower end of the mounting member is supported on the outdoor ridge of the lower horizontal frame of the sliding door sliding door sash, so that the surface lattice mounting frame is fixed stably and securely at a predetermined position. be able to.

According to the fifth aspect of the present invention, the short escape mounting members are arranged on the vertical frame of the sash at appropriate intervals in the vertical direction, and the lower end of the lowest mounting member is attached to the vertical frame. By locking the sliding grid on the outdoor ridge of the lower horizontal frame of the sliding sash for the sliding door, the surface grid mounting frame can be easily and easily attached and fixed in a short time, and the mounting member has an outdoor ridge of the sash vertical frame. , And the surface grid mounting frame can be securely fixed at a predetermined position.

According to the sixth aspect of the present invention, the movable louver surface grid is pivotally attached to the surface grid mounting frame so as to be swingably openable, and the play between the surface grid mounting frame and the surface grid is facilitated. A locking device that locks the surface grid to the surface grid mounting frame at all times and unlocks it by operating the unlocking operation unit in an emergency is interposed between the end side and the louver. Since the unlocking operation can be performed only when the louver is open, even if the louver is open, even if you insert your hand through the louver gap, it cannot be unlocked without permission. Sometimes after closing the louver,
Since the unlocking operation section can be operated to unlock, the opening operation of the surface lattice is easy and easy, and the emergency operability in the event of a fire or the like is excellent.

According to a seventh aspect of the present invention, the locking device includes a hook provided on the surface lattice mounting frame side, and a hook locking portion urged by a spring so as to always support the hook at the locking position. According to one having an unlocking button operating part that pushes or pulls to move the hook locking part from the locking position to the unlocking position against the spring, the unlocking operating part is a push button type or a pulling type. Since the button type is used, the unlocking operation becomes extremely simple, and the emergency operability is further improved.

According to another aspect of the present invention, the locking device includes a hook provided on the surface lattice mounting frame side, and a hook locking portion urged by a spring so as to always lock the hook at the locking position. According to one having an unlocking lever operating portion that is rotated by a lever to move the hook locking portion from the locking position to the unlocking position against the spring, the unlocking operating portion is a lever type. Therefore, the unlocking operation is further simplified, and the emergency operability is further improved.

According to a ninth aspect of the present invention, the lock device locks the lock pin provided on the surface lattice mounting frame side at all times in the lock position and releases the lock pin at a fixed rotation position. A rotating piece, a roller cam fixed to the rotating shaft of the louver, a cam follower that engages with the roller cam and rotates coaxially and integrally with the rotating piece, and an unlocking unit integrally protruded from the cam follower in the radial direction. According to the handle, the number of parts is small and the structure is simple, so that the manufacturing is easy and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view of one embodiment of a mounting device for an emergency escape surface grid according to the present invention, as viewed from the outdoor side when a movable louver surface grid is in a closed state.

FIG. 2 is a partial cross-sectional view of the upper surface side of the surface lattice mounting device, in which the movable louver surface lattice is in an open state.

FIG. 3 is an enlarged sectional view taken along line XX of FIG. 1;

FIG. 4 is a sectional view taken along line YY of FIG. 2;

FIG. 5 is a sectional view taken along line ZZ of FIG. 2;

FIG. 6 is a front view showing a louver opening / closing operation handle.

FIG. 7 is a sectional view taken along line VV of FIG. 6;

FIG. 8 is a perspective view of a surface grid mounting device showing another embodiment.

FIG. 9 is a plan view of the surface grid mounting device.

FIG. 10 is a plan view of a surface grid mounting device showing still another embodiment.

FIG. 11 is a plan view of a surface grid mounting device showing still another embodiment.

FIG. 12 is a plan view of a surface grid mounting device showing still another embodiment.

FIG. 13 is a perspective view of a surface grid mounting device showing still another embodiment.

FIG. 14 is a plan view of the same surface grid mounting device.

FIG. 15 is a plan view of a surface grid mounting device showing still another embodiment.

FIG. 16 is a plan view of a surface grid mounting device showing still another embodiment.

FIG. 17 is a plan view of a surface grid mounting device showing still another embodiment.

FIG. 18 is an enlarged longitudinal sectional view of the locking device according to an embodiment (push button type) of the locking device when the louver is opened.

FIG. 19 is an enlarged vertical sectional view of the locking device when the louver is fully closed.

FIG. 20 is an enlarged longitudinal sectional view of the locking device in a state where the unlocking operation is performed when the louver is fully closed.

FIG. 21 shows another embodiment of a locking device (pull button type).
(A) is a longitudinal sectional view showing a state at the time of locking, (B)
FIG. 3 is a longitudinal sectional view showing a state at the time of unlocking.

FIG. 22 shows still another embodiment of the locking device (lever type).
(A) is a longitudinal sectional view showing a state at the time of locking, (B)
FIG. 3 is a longitudinal sectional view showing a state at the time of unlocking.

FIG. 23 is a schematic explanatory view showing a locking device of another embodiment.

FIG. 24 is an explanatory diagram showing an unlocked state of the locking device.

FIG. 25 is a front view of the installation state of the locking device as viewed from the indoor side of the movable louver lattice.

FIG. 26 is a cross-sectional view similar to FIG. 2, showing still another embodiment of the mounting device for the emergency escape surface grid.

FIG. 27 is a perspective view of a mounting member used for the surface grid mounting device of the above.

FIG. 28 is a longitudinal sectional view of the surface grid mounting device of the above.

FIG. 29 is a plan view showing still another embodiment of the surface grid mounting device.

FIG. 30 is a front view of the surface grid mounting device as viewed from the indoor side.

FIG. 31 is a plan view showing still another embodiment of the surface grid mounting device.

[Explanation of symbols]

 Reference Signs List 1 sash for sliding door shoji 4 sash vertical frame 4a outdoor ridge of sash vertical frame 6 sash lower horizontal frame 6a outdoor ridge of sash lower horizontal frame 7 surface grid mounting frame 8 mounting member 9 movable louver surface grid 10 surface Lattice peripheral frame 11 Louver 13 Connecting rod 14 Louver opening / closing operation handle 19 Locking device 20 Unlocking push button operation unit (Unlocking operation unit) 20 'Unlocking pull button operation unit (Unlocking operation unit) 23 Hook 27 Hook Locking part 39 Locking device 40 Unlocking handle (Unlocking operation part) 41 Lock pin 42 Rotating piece 43 Roller cam 44 Cam follower 47 Surface grid mounting frame 48 Short piece mounting member 51 Short piece mounting member fitting part 53 Mounting member Fitting groove part of 70 Unlocking lever operation part (unlocking operation part)

Claims (9)

[Claims] 1. A pair of left and right plane grid mounting frames are fixed to the left and right vertical frame outdoor ridges of a sliding door sash provided at a window opening of a building via a mounting member. An emergency escape surface grid mounting device with a surface grid openably attached to the outdoor side. 2. Each of the surface grid mounting frames has a mounting edge which is in contact with the outdoor surface of the outdoor ridge of each sash vertical frame, and the mounting member is formed separately from the surface grid mounting frame. A piece that is in contact with the indoor side surface of the outdoor ridge, and the chamber is formed by a piece of this mounting member and a mounting edge of a surface grid mounting frame. The mounting member and the surface grid mounting frame are screwed together while the outer ridge is sandwiched from both sides of the room, and the lower end of the mounting member is supported on the outer ridge of the lower horizontal frame of the sliding door sash. 2. The mounting device for an emergency escape surface grid according to claim 1, wherein the emergency escape surface grid is attached. 3. The mounting member is formed of a long single piece formed separately from the surface lattice mounting frame, and has a fitting groove fitted into the outdoor ridge of each of the sash vertical frames. The fitting groove of the mounting member is fitted to the outdoor ridge, and the lower end of the mounting member is supported on the outdoor ridge of the lower horizontal frame of the sliding door sash. The mounting device for an emergency escape surface grid according to claim 1, wherein the mounting member and the surface grid mounting frame are screw-connected. 4. The mounting member is formed integrally with the surface lattice mounting frame and has the same length as the mounting member, and has a fitting groove fitted to the outdoor ridge of each sash vertical frame. 2. The fitting member according to claim 1, wherein the fitting groove portion of the mounting member is fitted to the outdoor ridge portion, and the lower end of the mounting member is supported on the outdoor ridge portion of the lower horizontal frame of the sliding door sash. Mounting device for emergency escape plane grid. 5. The mounting member is composed of a plurality of short pieces each having one end fitted to an outdoor ridge of the sash vertical frame and the other end screwed to each surface grid mounting frame. Things
These short-shaped mounting members are arranged on the vertical frame of the sash at appropriate intervals in the vertical direction, and the lower end of the lowermost mounting member is supported on the outdoor ridge portion of the lower horizontal frame of the sliding door sash. The mounting device for an emergency escape surface grid according to claim 1. 6. A movable louver surface lattice, which is opened and closed by a plurality of louvers in conjunction with the surface lattice mounting frame so as to swing open to the outside of the room, is provided on the free end side of the surface lattice mounting frame and the surface lattice. In between, a locking device that normally locks the surface grid to the surface grid mounting frame and unlocks it by operating the unlocking operation unit in an emergency is interposed, and the unlocking operation unit is The mounting device for an emergency escape surface grid according to any one of claims 1 to 5, wherein the mounting device is provided on the indoor side and can be unlocked only when the louver is closed. 7. A locking device, comprising: a hook provided on the surface grid mounting frame side; and a hook locking portion provided on the surface grid side and urged by a spring so as to always support the hook at the locking position. An unlocking button operation unit that pushes or pulls the hook locking unit from the locking position to the unlocking position against the spring, and the button operation unit operates until the louver is closed. 7. The mounting device according to claim 6, wherein the unlocking operation is prevented. 8. A locking device comprising: a hook provided on the surface lattice mounting frame side; and a hook locking portion provided on the surface lattice side and urged by a spring so as to always lock the hook at the locking position. And an unlocking lever operating portion that is pivotally operated by a lever to move the hook locking portion from the locking position to the unlocking position against the spring, wherein the lever operating portion has a louver closed. 7. The mounting device for an emergency escape surface grid according to claim 6, wherein the unlocking operation is blocked until the operation is performed. 9. A locking device, comprising: a lock pin provided on the surface lattice mounting frame side; and a lock pin provided on the surface lattice side to always lock the lock pin at the locking position and release the lock pin at a fixed rotation position. A rotating piece to be rotated, a roller cam fixed to a rotating shaft of a required louver, a cam follower which engages with the roller cam, and rotates coaxially and integrally with the rotating piece, and projects integrally from the cam follower in the radial direction. The cam follower is not rotatable with respect to the roller cam when the louver is open, and is rotatable with respect to the roller cam when the louver is closed. 5. The mounting device for an emergency escape surface grid according to claim 4, wherein the rotating piece is rotated to a lock pin releasing position to be unlocked.