JPH0726506B2 - Door opening and closing device in hangar - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening / closing device for a hangar which controls opening / closing of a hangar of an aircraft or the like.

[Problems to be Solved by the Invention]

An opening is provided in the center of the entrance and exit of the hangar for aircraft maintenance, especially for passing the vertical tail, and a shutter with a guide rail fixed at the lower end guiding the opening and closing of a horizontal door that opens and closes in the horizontal direction, etc. When installing the vertical door of
It is necessary to open and close the horizontal door using the guide rail as a guide with the vertical door closed.

However, since the conventional opening / closing mechanism between the horizontal door and the vertical door is not related, the horizontal door is closed with the vertical door open, or the vertical door is opened with the horizontal door closed in a random manner. Then, there is a risk that the horizontal door may deviate from the rail or fall.

The present invention has been made in view of the current state of the door having such a conventional structure, and intends to newly propose a device for opening and closing the door in a systematic manner.

[Means for Solving the Problems]

According to the present invention, the guide rail is provided with a motor cylinder that prevents the horizontal door from being closed and switches it to free, and detects the closed / open state of the horizontal door, and interlocks or unlocks the switch for opening the vertical door. By installing a switch, the horizontal door can be opened and closed only when the vertical door is closed, and at the same time, the vertical door can be opened only when the horizontal door is opened, thus ensuring safety during horizontal and vertical door opening and closing operations.

The rod of the motor cylinder protrudes toward the guide rail side when the vertical door is opened to prevent the horizontal door from closing, and when it is closed, it is housed in the cylinder to free the horizontal door from closing, and its operation is linked to the opening and closing of the vertical door. It is done by a limit switch.

Among the switches for opening and closing the vertical door, the switch for opening is
When the horizontal door is closed, the photoelectric switch that detects the presence of the door locks it so that it does not turn on, and when the door is open, the photoelectric switch detects the absence of the door and the interlock is released to enable it. .

〔Example〕

 The present invention will be described below with reference to the drawings illustrating an embodiment.

The opening / closing device A of the present invention has an opening portion of a hangar such as an aircraft shown in FIG.
The motor cylinder 1 which controls the opening and closing of both doors B and C, is laid horizontally at the upper end position of the horizontal door B at the opening as shown in FIG. 2, and is attached to the guide rail D ₁ for guiding the opening and closing. And a limit switch 2 for operating the motor cylinder 1 and a photoelectric switch 3 for guiding the presence / absence of the horizontal door B and controlling a switch for opening the vertical door C. Only when the vertical door C is closed, Sequence control is performed in which the opening / closing is made free and the vertical door C is made open only when the horizontal door B is opened.

In the figure, E indicates a door pocket in which the horizontal doors B and B are stored.

The guide rail D ₁ is laid at the upper end position of the horizontal door B excluding the position of the vertical door C, and the lower end of the vertical door C is fixed with the guide rail D ₂ continuous with the guide rail D ₁ when the vertical door C is closed.

The motor cylinders 1 and 1 are rods 1 as shown in Fig. 2 -I and II.
The guide rail D ₁ when a is protruded in a position to penetrate from the hangar inner, vertical door C on both sides guide rails D _1, D _1,
It is attached near the end on the side of the vertical door C and prevents the horizontal doors B and B from being closed when the rod 1a is projected, and is free to be closed when the rod 1a is housed, as shown in FIGS.

The operation of this motor cylinder 1 is installed beside it and is performed by a limit switch 2 which is interlocked with the opening and closing of the vertical door C, and the limit switch 2 is fixed to the vertical door C as shown in FIGS. The striker 4 protruding from the guide rail D ₂ switches between normal rotation and reverse rotation.

When the vertical door C is opened (ascended), the striker 4 collides with the limit switch 2 and operates it (normal rotation), pushing the rod 1a as a stopper of the horizontal door B toward the guide rail D ₁ side, and vice versa. When closed (descent), the striker 4 similarly actuates the limit switch 2 in the opposite direction (reverse rotation) to house the rod 1a in the cylinder 1b.

That is, when the vertical door C is opened, the horizontal door B cannot be closed because the bracket 5 protruding from the upper end collides with the rod 1a, and can be closed only when the vertical door C is closed.

The photoelectric switch 3 is the same as the limit switch 2 shown in FIG.
As shown in II and III, it is installed on the side of the horizontal door B side of the motor cylinder 1. When the horizontal door B is closed, its presence is detected and the switch for opening the vertical door C is interlocked so that it cannot be opened. Then, when the horizontal door B is opened, the absence is sensed to release the interlock, and the vertical door C can be opened.

Next, the sequence operation of the switchgear A will be described with reference to FIGS.

First, the horizontal doors B and B (left and right) and the vertical door C shown in FIG. 1-I are both closed, and the horizontal doors B and B are opened. This operation may be manual or automatic.

Even if the switch for opening the vertical door C is operated before the operation of opening the horizontal doors B, B, the photoelectric switches 3, 3 for detecting the presence of the horizontal doors B, B are interlocked and do not operate (Fig. 5). −
I). At this time, photoelectric switches 3 and 3 (2 connected in series
The b contacts PHS) are in the ON state.

After opening the horizontal doors B and B, press the PBS ₁ switch for opening the vertical door C, and operate it to operate the photoelectric switches 3 and 3 (two b-contact PHS) installed for the left and right horizontal doors B and B. When the absence of the horizontal doors B and B is detected, it turns off (Fig. 5-II), and the electromagnetic relay X
_The vertical door C is opened by self-holding of 1, and Fig. 1-II
It becomes the state of.

Left and right limit switches when vertical door C is opened (raised)
2, 2 forward rotation (a contact LSy, LSz is ON, b contact LSy, LSz is OF
F), the rods 1a, 1a of the motor cylinders 1, 1 are pushed out,
After that, the horizontal doors B and B cannot be closed until the vertical door C is closed (Fig. 5-III). As shown in the figure, the b-contacts Y ₂ and Z ₂ connected to the a-contact limit switches LSy and LSz and the b-contacts Y ₁ and Z ₁ connected to the b-contact limit switches LSy and LSz are electromagnetic relays Y ₁ and It has become interlock circuit by Z ₁ and Y _2, Z _2.

On the contrary, if the vertical door C is closed by the operation of the switch for closing the vertical door C, PBS ₂ , the photoelectric switches 2 and 2 (PHS) are turned off.
, The limit switches 2 and 2 reversely rotate (a contacts LSy and LSz are OFF and b contacts LSy and LSz are ON), and the rods 1a and 1a are drawn into the cylinders 1b and 1b.

In this state, horizontal doors B and B can be closed (Fig. 5-I
V).

〔The invention's effect〕

The present invention is as described above, and when the vertical door is opened, the rod of the motor cylinder protruding into the guide rail prevents the horizontal door from being closed, and detects the presence of the horizontal door to open the vertical door. Since the vertical door is prevented from being opened by the photoelectric switch that makes the switch inoperable, the horizontal door can be opened and closed only when the vertical door is closed, and the vertical door can be opened only when the horizontal door is opened. The safety at the time of opening and closing operation is secured.

In addition, since the motor cylinder, limit switch and photoelectric switch are compactly integrated, they can be easily added to existing doors.

[Brief description of drawings]

1-I and II are elevation views showing the states of the hangar when the door is closed and when it is opened, and FIGS. 2-I and II are plan views and elevation views showing an installation example of the present invention, respectively. Fig. 3-I, II, and III are the side view, the plan view, and the front view showing the details of the installation state, respectively.
FIG. 4 is a sequence diagram showing an example of sequence control according to the present invention, and FIGS. 5A to 5I are conceptual diagrams showing operation states of the door according to the present invention. A: switchgear, 1 motor cylinder, 1a rod, 1b cylinder, 2 limit switch, 3
Photoelectric switch, 4 ...... striker 5 ...... bracket, B ...... horizontal door, C ...... vertical door, D _1, D ₂ ...... guide rails, E ...... door pocket.

Claims (1)

[Claims] 1. A horizontal door that opens and closes in a horizontal direction, and a vertical door that opens and closes continuously in the vertical direction above the horizontal door,
A hangar in which a guide rail for guiding the opening and closing of the horizontal door is horizontally laid at the upper end position of the horizontal door excluding the position of the vertical door, and a guide rail continuous to the guide rail at the time of closing is fixed to the lower end of the vertical door. Is a door opening / closing device that opens and closes the horizontal door only when the vertical door is closed, and at the same time opens the vertical door only when the horizontal door is opened. A motor cylinder that is installed near the end of the rail on the vertical door side and that prevents the horizontal door from closing when the rod protrudes and is free when storing, and a motor cylinder that works in conjunction with opening and closing of the vertical door and opens the vertical door. Interlock the limit switch that protrudes the rod to the guide rail side and stores the rod when it is closed, and the switch that opens the vertical door by detecting its presence when the horizontal door is closed. , Door opening and closing device in configured hangar from upon opening a photoelectric switch for releasing the interlock by sensing the absence of horizontal doors.