JPH0423199Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a blind to be attached to the outdoor side of a window of a building, and particularly to a blind to be attached to a window that serves as an entrance in an emergency.

Conventional technology According to regulations, floors above the third floor in parts of buildings with a height of 31 m or less must have entrances for firefighters to enter in the event of an emergency such as a fire. For this reason, windows that can be opened from the outside are installed in designated areas of buildings, but blinds attached to the front of such windows will obstruct firefighters' access from outside.
Conventionally, as shown in Japanese Utility Model Application Publication No. 58-143990, for example, in the event of an emergency, an emergency winding switch is turned on in conjunction with a fire alarm system, and a motor is activated to wind up the obstructing shutter, etc., and close the entrance. It was known that it was possible to form a

Problems that the invention aims to solve Conventional opening/closing devices such as those described above require a power source to wind up the shutter, etc., and an emergency power source must be installed to operate even if the power is cut off in the event of a fire. In addition, there was a problem in that the equipment was complicated and expensive.

Therefore, the present invention solves the conventional problems and provides an emergency entrance blind that does not require an emergency power source, is inexpensive, has a simple structure, and can easily form a complete emergency entrance. The purpose is to

Means for Solving the Problems This invention aims to solve the conventional problems by first
As shown in FIG. 7 and FIG. 7, a blind main body, in which a number of slats 4 are connected by a tilting string 5, is inserted through a lifting string 7 whose upper end is fixed to a winding shaft and whose lower end is fixed to a lower stile 8 of the blind. In the emergency entrance blind constructed as shown in FIG. 10, 17 are provided, and the notches 10, 1
A locking pin 11 is attached to one of the locking plates with its tip protruding from the locking pin 11, and the tilting string 5 and the tilting operation string 6, which is stretched around the tilting shaft, are attached to the locking pin 11 through the notch. 10 and 17 are inserted and locked and connected, and in an emergency, the other locking plate can be slid and the edge of the notch 17 can lock the locking pin 11.
By removing the tilting string 5 and the tilting operation string 6, which are engaged with the locking plates 1 and 1a, the locking plates 1, 1a and the blind body are lowered by their own weight onto the lower stile 8 of the blind, resulting in an inexpensive and simple structure. This is an emergency entrance blind that can easily form a complete emergency entrance.

Example Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of the locking plate of the emergency entrance blind of the present invention, showing the locked state.
Reference numeral 1 denotes a locking plate, which is composed of an upper plate 2 and a lower plate 3, and is located at the top of a number of slats 4 that block direct sunlight in the blind, and is placed at the lower end of the blind box 9, so that it can be used in the event of an emergency. Tilt operation string 6
By releasing the locking between the and the tilting string 5, the locking plate is lowered onto the lower stile 8 at the lower end of the blind together with the many slats 4 that make up the blind body, forming an emergency entrance. It is something. Notches 10, 10, 10, 10 are formed in the upper plate 2 of the locking plate at four locations on the front side and the rear side, which are the positions through which the tilting string 5 and the tilting operation string 6 pass. The portion 10 has a locking pin 11 fixed to the upper plate 2.
It has a protruding tip. This locking pin 11 has a loop formed at the lower end of a tilting operation string 6 that is hung around a tilting shaft provided in the blind box 9, and a tilting string 5 that connects a large number of slats 4.
The loop portions formed at the upper ends of the two are configured to be respectively locked. Further, on the center line in the width direction of the upper plate 2, the lower end is fixed to the lower stile 8 of the blind, and the blind is rolled up by a winding shaft provided in the blind box 9 through which a number of slats 4 are inserted.
Elongated through holes 12, 12 are drilled through which the lifting cord 7 for lowering is passed, and an elongated hole 13 is drilled close to this to guide the guide pin 14 attached to the lower plate 3. has been done. Near the front side of the center, a hole is provided through which a split pin 15 serving as a stopper for preventing movement of the upper plate 2 and lower plate 3 is inserted. On the lower plate 3 of the locking plate,
At positions corresponding to the notches 10 of the upper plate 2, four notches 17 having a width narrower than the notches 10 of the upper plate 2 are formed. This notch 17 of the lower plate 3 is the second
As shown in the figure, a part of the protruding tip of the locking pin 11 is caught on one side of the notch 17, and the locking pin 1
It is formed so as to have a width that allows the loop portion of the tilting string 5 that is locked to 1 to pass through. On the center line in the width direction of the lower plate 3, an elongated through hole is bored through which the lifting cord 7, which coincides with the upper plate 2, is passed. A guide pin 14 is mounted with a mating head. In addition, a locking pin 1 is provided on the front side of the lower plate 3.
1 and the loop part of the tilting operation string 6 locked to the tilting string 5
A handle 18 is attached for sliding the lower plate 3 to the left along the upper plate 2 in order to remove the loop portion from the locking pin 11. As shown in FIG. 9, the handle 18 is arranged so as to protrude from the lower end of the blind box 9 so that it can be operated from outside.

Next, the operation of the locking plate 1 will be explained.
The drawings to FIG. 6 are enlarged views of the locking pin 11 and sequentially show how the lock is released, and how to release the lock in an emergency. First, remove the split pin 15 by strongly pulling the ring 16 attached to the lower end of the split pin 15, which is the stopper of the locking plate 1, downward as shown in FIG. Slide it to the left along the top plate 2. FIG. 4 shows the normal locked state, in which the loop portion of the tilting operation string 6 and the loop portion of the tilting string 5 are locked to the locking pin 11, and the tilting operation string 6 is operated. By doing so, the mounting angle of the slat 4 can be adjusted by moving the tilting string 5 up and down. In this state, both loops that are locked to the locking pin 11 cannot be detached from the locking pin 11 during normal use because the tip of the locking pin 11 protrudes from the notch 17 of the lower plate 3. I have made sure that there is no such thing. When the handle 18 is moved to the left, the lower plate 3 slides along the upper plate 2, and both loops that are locked to the locking pin 11 by the notch 17 of the lower plate 3 move to the left. and is removed from the locking pin 11 as shown in FIG.
The notch 10 of the upper plate 2 and the notch 17 of the lower plate 3 coincide on the left side, and the tilting string 5 is moved along the lifting string 7 and onto the lower stile 8 of the blind due to the weight of the many connected slats 4. It lowers and folds up to form an emergency entrance in the window. At this time, the loop portion of the tilting operation string 6 also comes off from the locking pin 11, so the locking plate 1, which was suspended by the tilting operation string 6, also descends along the lifting string 7 and onto the lower stile 8 of the blind due to its own weight. . The slat 4 is made of a thin plastic plate or a thin metal plate, so it is light, and even if it is tilted and difficult to descend, an emergency entrance can be easily formed by lowering the locking plate 1, which is heavier than the slat 4, from above. be able to.

7 and 8 show a locking plate 1a according to another embodiment of the present invention, in which when the split pin 15 serving as a stopper is pulled out, the lower plate 3 of the locking plate is moved by the biasing force of the spring 19. This automatically slides to the left along the upper plate 2 to release the loop portion of the tilting operation string 6 and the loop portion of the tilting string 5 that are locked to the locking pin 11. Lower plate 3 of locking plate 1
The other end of the tension spring 19 attached to the pin 20 at one end of the upper plate 2 is connected to the elongated hole 2 bored in the upper plate 2.
It is configured so that it is biased to the left by being stretched around a pin 21 fixed through 2. Under normal conditions, the lower plate 3 is moved to the right against the spring 19, and the cotter pin 15 is inserted through the upper plate 2 and lower plate 3 to prevent the movement.
As shown in the figure, similar to the embodiment shown in FIG. , the locking between the tilting operation string 6 and the tilting string 5 is released, and a number of posts 4 and locking plates 1 are lowered onto the lower stile 8 of the blind to form an emergency entrance. be.

Effects of the invention The present invention has the above-mentioned structure, and includes two slidable upper and lower locking plates on the top of the slat, and a notch that communicates vertically with these two locking plates. At the same time, a locking pin is attached to one of the locking plates with its tip protruding from the notch, and a tilting string and a tilting operation string are lockingly connected to this locking pin. The other locking plate is slid to release the locking from the locking pin, and the locking plate and the blind body are lowered onto the lower stile of the blind to form an emergency entrance, making it easy to use. This structure allows an emergency entrance to be easily formed, and since the locking plate is lowered together with the blind body, the slats do not stop midway and can be lowered completely, which has excellent effects. .

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the locking plate of the emergency entrance blind of the present invention, Fig. 2 is a plan view, Fig. 3 is a side view, and Figs. 4, 5, and 6 are locking plates. Fig. 7 is a plan view of another embodiment of the present invention, Fig. 8 is a side view of the same, and Fig. 9 shows the installed state of the emergency entrance blind of the present invention. FIG. 1, 1a... Locking plate, 2... Upper plate, 3... Lower plate, 5... Tilt string, 6... Tilting operation string, 8... Lower stile of blind, 10, 17... Notch part, 11...
...locking pin.

Claims (1)

[Scope of utility model registration request] In an emergency entrance blind constructed by inserting a blind main body in which a number of slats 4 are connected by tilting strings 5 through a lift string 7 whose upper end is fixed to a winding shaft and whose lower end is fixed to a lower stile 8 of the blind, Two upper and lower sliding locking plates 1, 1a are provided at the top of the slat 4, and notches 10, 17 are provided in these two locking plates 1, 1a to communicate with each other vertically.
A locking pin 11 is attached to one of the locking plates with its tips protruding from the notches 10 and 17, and the tilting string 5 and the tilting operation string 6, which is wrapped around the tilting shaft, are connected to the locking pin 11. are inserted through the notches 10 and 17 and locked and connected, and in an emergency, the other locking plate can be slid and the edge of the notch 17 can be inserted into the locking pin 11. An emergency entrance blind characterized in that by removing the locked tilting string 5 and the tilting operation string 6, the locking plates 1, 1a and the blind body can be lowered onto the lower stile 8 of the blind.