JPH04127395U - shutter device - Google Patents

Abstract

(57) [Summary] (with amendments) [Purpose] To make it possible to mechanically and easily stop the descent of the panel when the bottom of the panel comes into contact with an obstacle during the descent of the panel. . [Configuration] Drainer 9 that can be raised and lowered at the bottom 6b of the panel 6
is provided, and the limit switch actuation mechanism 2 is activated by utilizing the movement of the drainer coming into contact with an obstacle and rising relative to the panel.
3 mechanically operates a limit switch that stops the panel from being lowered by the driving means.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a shutter device that opens and closes a shutter opening in a building. It is.

0002

[Conventional technology]

Shutters have traditionally been used as shutter devices to open and close openings for building shutters. A pair of left and right guide rails are installed on both sides of the opening/closing opening, and multiple While guiding the left and right ends of the panels using the guide rails, slide these panels together. The guide rail is driven by a pair of left and right chains driven by a drive means such as a motor. Some devices are designed to open and close the opening by moving up and down along the rail.

0003 In the conventional shutter device of this type, the bottom of the panel is to emergency stop the lowering of the panel by the drive means when the panel comes into contact with an obstacle. Safety devices are provided.

0004 Conventional safety devices include radio transmitters and guides attached to the bottom of the panel. Obstacles are detected using tape switches installed along almost the entire length of the rail. The method was to do so.

[0005]

[Problem that the idea aims to solve]

However, as in the past, obstacles cannot be detected using wireless transmitters, tape switches, etc. With this method, the entire shutter device becomes expensive due to high component costs. There was a problem.

[0006] This idea was made to solve the problems mentioned above, and it is Mechanically, it has an extremely simple structure that allows it to sense obstacles and emergency stop the drive means. The purpose of this invention is to obtain a shutter device.

[0007]

[Means to solve the problem]

The shutter device according to this invention has a movable drainer that can be raised and lowered at the bottom of the panel. A limit switch is installed and activated by sensing the rising movement of this drainer panel. A limit switch is actuated by a switch actuating mechanism to The structure is such that the rain is stopped.

[0008]

[Effect]

In the shutter device of this invention, the drainer hits an obstacle while the panel is descending. When it touches the panel and rises against the panel, the limit switch actuation mechanism The switch is mechanically actuated to automatically stop the lowering of the panel by the drive means. be done.

[0009]

【Example】

An embodiment of the shutter device of this invention will be described below with reference to the drawings.

0010 First, Figure 1 shows the entire shutter device, which is used to open and close building shutters. A pair of left and right guide rails 2 are installed vertically on both sides of the opening 1, and these guide rails A panel storage box 3 is installed horizontally between the upper parts of the rails 2. And the panel A pair of left and right sprockets 4 are rotatably supported in a storage box 3. A pair of chains 5 are engaged, and these chains 5 run along inside both guide rails 2. It is hanging down.

[0011] Then, the left and right ends 6a of the plurality of upper and lower panels 6 are raised and lowered into both guide rails 2. These end portions 6a are connected to both chains via a pair of left and right connecting pins 7. By being connected to the main panel 5, the plurality of panels 6 are vertically connected.

0012 Then, a driving means 8 such as a motor installed in the panel storage box 3 is used. Both sprockets 4 are driven to rotate in forward and reverse directions via the transmission means 8a, and both chains 5 is driven up and down within both guide rails 2, and a plurality of panels 6 are moved up and down within both guide rails 2. Therefore, it is configured to be driven up and down while being guided.

[0013] A movable drainer 9 is provided at the bottom 6b of the panel 6 within a certain range. It is installed so that it can be raised and lowered freely within the enclosure.

[0014] Next, the safety device 10 will be explained with reference to FIGS. 2 to 8. First, as shown in FIGS. 2 and 4 to 6, the bottom panel 6 has both left and right ends 6a. A horizontal horizontal frame 62 is constructed between the lower ends of the vertical vertical frame 61, and the cross-sectional shape of this horizontal frame 62 is The shape is shaped like a downward U-shape, and the cross section is shaped like an upward U-shape. The horizontal drainer 9 thus formed is inserted from below into the horizontal frame 62 and arranged so as to be freely raised and lowered. has been done.

[0015] On both left and right sides of both vertical frames 61, a pair of vertical roller bases 11 are provided with a plurality of upper and lower blocks. This roller base 11 is connected by a racket 11a and a bolt 11b. A pair of left and right connecting pins 7 installed horizontally on both the left and right sides of the upper end connect a pair of left and right chains. connected to ring 5. In addition, there are Each pair of upper guide rollers 12 and lower guide rollers 13 are rotatably attached. I'm being kicked. Each connecting pin 7 and upper and lower guide rollers 12 and 13 are connected to each guide roller. It is guided by guide grooves 14 and 15 vertically provided along the inside of the idle rail 2. It is configured to

[0016] A pair of substantially L-shaped left and right support plates 1 are fixed to both left and right ends of the drainer 9. 5 is a plurality of vertical holes 15a and bolts 1 on the inner side of the lower end of the roller base 11. 5b so that it can be raised and lowered freely. Then, it is locked at the top of both support plates 15. Inside the controller base 11, a pair of left and right first sensing levers 16 are provided with inclined holes 16a and holes. The lower end of these first sensing levers 16 is rotatably attached via a lever 16b. is rotatably attached to the upper end of both support plates 15 through horizontal holes 16c and bolts 16d. A roller 17 is rotatably attached to the upper end of these first sensing levers 16. I'm being kicked.

[0017] Next, as shown in FIG. 3, FIG. 7, and FIG. A pair of vertical second sensing levers 18 having a substantially L-shaped cross section over almost the entire length are provided. It is located. The upper and lower ends of these second sensing levers 18 are placed inside the guide rail 2. A pair of upper and lower support shafts 19, 2 perpendicular to each pair of upper and lower brackets 2a, 2b fixed to each other. A return spring 21 is rotatably supported via 0 and fitted around the outer periphery of the upper support shaft 19. As a result, the second sensing lever 18 is urged to rotate in the direction of arrow a in FIG. and , a limit switch 22 is attached to the lower part of the upper bracket 2a. So Then, the roller 17 of the first sensing lever 16 is connected to the limit switch of the second sensing lever 18. It is configured to be moved up and down along the side opposite to 2, and this roller 17 pushes the second sensing lever 18 from the direction of arrow b in FIG. The bar 18 moves the actuator 22a of the limit switch 22 in the direction of arrow c in FIG. It is configured to operate from

[0018] Therefore, there is a limit that detects the rising movement of the drainer 9 and activates the limit switch 22. The switch actuation mechanism 23 is constituted by the first and second sensing levers 16 and 18. ing.

[0019] Next, the safe stopping operation of the panel 6 during its descent will be explained. First, as shown in Fig. 2, the drainer 9 is normally lowered in the direction of arrow d due to its own weight. Therefore, the support plate 15 is also lowered in the direction of arrow d, and the first sensing lever 16 is tilted. It is drawn in along the diagonal hole 16a in the direction of arrow e.

[0020] Meanwhile, as shown in FIG. 3, the second sensing lever 18 is moved by the arrow a by the return spring 21. direction and separated from the limit switch 22.

[0021] Then, as shown in FIG. When it comes into contact with the lower frame 62 and rises against its own weight in the direction of arrow f, the support The plate 15 is also lifted together in the direction of arrow f.

[0022] Then, the second sensing lever 16 is pushed out along the inclined hole 16a in the direction of arrow b. , as shown in FIG. 3, the roller 17 pushes a part of the second sensing lever 18 from the direction of arrow b. vinegar.

[0023] As a result, as shown in FIG. The actuator 22a of the limit switch 22 is rotated in the direction of arrow c. When pressed from the direction, the lowering of the panel 6 by the drive means 8 shown in FIG. will be stopped.

[0024]

[Effect of the idea]

As described above, according to this invention, the drainer hits an obstacle while the panel is descending. The limit switch actuation mechanism takes advantage of the fact that it touches the panel and rises against the panel. The limit switch is mechanically actuated to automatically lower the panel using the driving means. Since the system was configured to stop automatically, expensive wireless transmitters, tape switches, etc. were used. The effect is that there is no need to do this, the structure is simple, and the entire shutter device can be made inexpensive. There is.

[Brief explanation of drawings]

FIG. 1 is a front view of the entire shutter device according to an embodiment of the invention.

FIG. 2 is a perspective view showing a first sensing lever of the limit switch actuation mechanism.

FIG. 3 is a perspective view showing a second sensing lever of the limit switch actuation mechanism.

FIG. 4 is a horizontal cross-sectional plan view of the guide rail and the panel end.

FIG. 5 is a side view showing the drainer and the first sensing lever.

FIG. 6 is a view taken along the line A-A in FIG. 5;

FIG. 7 is a plan view showing a limit switch and a second sensing lever.

8 is a partially cutaway side view taken along the line BB in FIG. 7; FIG.

[Explanation of symbols]

1 Opening for shutter opening/closing 2 Guide rail 6 panel 6a Both left and right ends of the panel 6b Bottom of panel 8 Drive means 9 Drainer 16 First sensing lever 18 Second sensing lever 22 Limit switch 23 Limit switch operating mechanism

Claims (1)

[Scope of utility model registration request] Claim 1: A pair of left and right guide rails arranged on both sides of a shutter opening/closing opening, a plurality of panels that are vertically connected and whose left and right ends are guided by the guide rails to move up and down, and these panels. A shutter device equipped with a driving means for driving up and down, a movable drainer that is attached to the bottom of the panel so as to be able to rise and fall and maintains a lowered position by its own weight, and is activated by sensing the upward movement of the drainer with respect to the panel. and a limit switch operating mechanism that operates a limit switch provided in the guide rail to stop the panel from being lowered by the drive means.