JPH0751596Y2 - Area lattice - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a surface lattice in which a window opening is normally closed and the window opening can be released in case of an emergency such as a fire.

(Prior Art) Since the surface lattice that is attached to the window opening of the building frame for the purpose of crime prevention is generally of a fixed type, the surface lattice prevents the escape from the window opening in an emergency such as a fire, which may cause a disaster. was there.

Therefore, as a means to prevent such a catastrophe, the surface lattice itself is constructed as a door type that opens and rotates to the outside, and a lock that cannot be opened in normal times is provided, and the unlocking operation can be performed only from the indoor side. The following structures have been proposed (Japanese Patent Publication No. 51-4355, Japanese Utility Model Publication Nos. 59-13557, 60-10088, etc.).

(Problems to be solved by the invention) With the above-mentioned conventional plane lattice, it takes time to unlock, so in an emergency such as a fire, the plane lattice may be upset and the plane lattice cannot be opened, and escape from the window opening. I couldn't do it.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a surface lattice which is always securely fixed to a window opening and can be easily opened when necessary.

(Means for Solving the Problems) The structure of the present invention for achieving the above object will be described with reference to FIG. 1 and FIG. 2 corresponding to the embodiments. A pair of fixed bars 1 on the outdoor side of the section 3
a, 1a are fixedly installed, and a movable surface lattice 1b is arranged between the fixed bars 1a, 1a so as to be movable in the longitudinal direction of the fixed bars 1a, 1a. A lock pin (10) for locking the movable surface lattice (1b) to the fixed crosspiece (1a) by engaging the movable surface lattice (1b) with the lock surface (10a) and a lock release spring (13) for biasing the lock pin (10) in the unlocking direction are provided. At the indoor end 10b of the lock pin 10, there is provided a lock holding roller 15 for abutting the window shutter 4 in the closed state and holding the lock pin 10 in the locked state against the lock release spring 13. The configuration provided is adopted.

(Operation) When the window door 4 is closed, the indoor end 10 of the lock pin 10 is closed.
The lock holding roller 15 provided at b contacts the window screen 4 to hold the lock state by the lock pin 10.

When the window screen 4 is released from this state, the lock release spring 13
As a result, the lock pin 10 moves to the indoor side and the lock is automatically released. Next, the window opening 3 can be released by moving the movable surface grating 1b along the fixed crosspiece 1a.

(Embodiment) FIGS. 3 (a) and 3 (b) show a state in which the surface lattice 1 according to an embodiment of the present invention is attached to the outdoor side of the window opening 3 of the building frame 2, and Reference numeral 1 denotes a pair of fixed bars 1a and 1a fixed along the upper and lower edges of the window opening 3 and the fixed bars 1a and 1a.
A sliding door type window shovel 4, 4 is provided in the window opening 3 and is composed of a movable surface lattice 1b disposed therebetween.

As shown in FIG. 1 and FIG. 2, the fixed bar 1a includes a bar main body 6 made of an aluminum extruded profile having a substantially U-shaped cross section, and the bar main body 6
The slide rail 9 is movably fitted in a groove 8 formed along the longitudinal direction on the side surface of the crosspiece main body 6 on the outdoor side. The movable surface lattice 1b is inserted between the upper and lower slide rails 9, 9.

Further, 10 is a lock pin that penetrates the fixed rail 1a in the indoor and outdoor directions, and the outdoor side end portion 10a thereof is fitted into the lock hole 12 of the block 11 fixed to the slide rail 9 so that the movable surface lattice 1b is fixed. It is locked to the fixed rail 1a. 13 is a snap ring 14 fixed to the lock pin 10 and the crosspiece body 6
A lock release spring interposed between the lock pin 10 and the lock pin 10 for urging the lock pin 10 in the lock release direction, and a lock holding member 15 rotatably provided on the indoor end 10b of the lock pin 10 via a bracket 16. It is a roller and contacts the upper frame 4a of the window screen 4 to hold the lock pin 10 in a locked state against the lock release spring 13.

In the closed state of the window screen 4 shown in FIGS. 1 and 2, the lock holding roller 15 abuts on the window screen 4 to
The outdoor side end 10a of the lock pin 10 is fitted into the lock hole 12, and the movable surface lattice 1b is fixed to the window opening 3.

When the window sliding door 4 is released from this state, the lock pin 10 moves to the indoor side by the lock release spring 13 as shown by the phantom line in FIG. 1, and the outdoor side end 10a of the lock pin 10 comes out of the lock hole 12. It is pulled out and the lock is released automatically. In this unlocked state, the window opening 3 can be opened by moving the movable surface lattice 1b along the fixed bar 1a.

After opening the window opening 3, when the movable surface lattice 1b is returned to the original state shown in FIG. 1 and the window lattice 4 is closed, the lock holding roller 15 is pushed out by the window shovel 4 to the outside. The outdoor end 10a of the lock pin 10 fits into the lock hole 12 and automatically returns to the locked state.

In FIG. 1, reference numeral 18 denotes a synthetic resin cap capped on both ends of the fixed bar 1a, which is pushed by the slide rail 9 when the movable surface lattice 1b is opened and peeled off from the fixed bar 1a. Reference numeral 19 is a mounting bracket for fixing the fixed rail 1a to the building frame 2.

(Effect of the Invention) According to the present invention, in the closed state of the window lattice, the lock pin is held in the locked state by the lock holding roller coming into contact with the window screen, so that the movable surface lattice is unexpectedly opened. Therefore, the crime prevention effect can be surely maintained.

On the other hand, in the event of an emergency in the event of a fire, the lock pin can be moved in the unlocking direction by the unlocking spring by simply opening the above-mentioned window screen, and it can be automatically unlocked. As described above, it is possible to quickly open the movable surface lattice and easily escape to the outside of the room without taking time and effort to unlock.

Further, as the lock mechanism, it is sufficient to provide the lock pin and the lock holding spring on the fixed rail, and further to provide the lock holding roller on the indoor side end portion of the lock pin, so that the lock mechanism can be manufactured at low cost, and the lock mechanism can be provided. It is extremely economical because it requires no energy such as a battery to operate.

[Brief description of drawings]

FIG. 1 is a horizontal sectional view of an essential part of an area grating according to an embodiment of the present invention, FIG. 2 is a vertical sectional view of the same area, and FIGS. 3 (a) and 3 (b) are front views of the entire area grating. It is a figure and a longitudinal cross-sectional view. DESCRIPTION OF SYMBOLS 1 ... Plane lattice, 1a ... Fixed crosspiece, 1b ... Movable plane lattice, 2 ... Building frame, 3 ... Window opening, 4 ... Window shoji, 10 ... Lock pin, 10a
... outdoor end of lock pin, 10b ... indoor end of lock pin, 13 ... unlock spring, 15 ... lock holding roller.

Claims (1)

[Scope of utility model registration request] 1. A pair of fixed bars are fixedly provided on the outside of a window opening of a building frame, and a movable surface lattice is arranged between the fixed bars so as to be movable in the longitudinal direction of the fixed bars. The crosspiece is provided with a lock pin that locks the movable surface grid to the fixed crosspiece by engaging the outdoor side end portion with the movable surface grid, and a lock release spring that biases the lock pin in the unlocking direction. A surface lattice provided with a lock holding roller for abutting a window shutter in a closed state and holding the lock pin in a locked state against a lock release spring at an indoor end of the lock pin. .