JPH028482A - Opening/closing device of door in hangar - Google Patents

Abstract

PURPOSE:To increase the safety of door-opening/closing operations by a method in which a motor cylinder and a photoelectric switch are provided to a guide rail, only when a vertical door is closed, a horizontal door is freely opened or closed and only when the horizontal door is opened, the vertical door is freely opened or closed. CONSTITUTION:In an aviation shed, etc., motor cylinders 1 are provided for guide rails D1 and D2 to switch the closing of horizontal doors B to interfering action and freeing action. Photoelectric switches 3 are also provided for the rails D1 and D2, the closing/opening conditions of the doors B are detected, and switch for opening the vertical door is interlocked or released. Only when the vertical door is closed, the doors B are freely opened or closed, and only when the doors B is opened, the vertical door is freely opened or closed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a door opening/closing device for a hangar, which controls the opening and closing of a hangar door for an aircraft or the like.

[Problem to be solved by the invention]

An opening is provided in the center of the entrance to the aircraft maintenance hangar, especially for the passage of the vertical tail.In this opening, there is a shutter, etc., with a guide rail fixed to the lower end that guides the opening and closing of the horizontal door that opens and closes in the horizontal direction. When installing a vertical door,
Opening and closing of the horizontal door must be done with the vertical door closed, using the guide rail as a guide.

However, since there is no relationship between the conventional opening and closing mechanisms between the horizontal door and the vertical door, the horizontal door closes when the vertical door is open, or the vertical door opens when the horizontal door is closed, resulting in chaotic opening and closing operations. There is a danger that the horizontal door may deviate from the rail or fall over.

This invention has been made in light of the current state of doors with such conventional structures, and aims to propose a new device for opening and closing doors in an orderly manner.

[Means to solve the problem]

In the present invention, a motor cylinder is attached to the guide rail to prevent the horizontal door from closing and to switch the horizontal door to free.In addition, a photoelectric sensor is installed on the guide rail to detect the closed/open state of the horizontal door and interlock or release the switch for opening the vertical door. By installing a switch, the horizontal door can be freely opened and closed only when the vertical door is closed, and at the same time, the vertical door can be freely opened only when the horizontal door is opened, thereby ensuring safety when opening and closing the horizontal and vertical doors.

When the vertical door is opened, the motor cylinder rod protrudes toward the guide rail to prevent the horizontal door from closing, and is stored in the cylinder in a closed manner, allowing the horizontal door to close freely, and its operation is linked to the opening and closing of the vertical door. This is done by a mitsu switch.

Among the switches for opening and closing vertical doors, the switch for opening is
When the horizontal door is closed, an interlock is activated by a photoelectric switch that detects its presence, and it does not turn on.Only when the horizontal door is opened, the photoelectric switch detects its absence, and the interlock is released, allowing it to be turned on. .

〔Example〕

The present invention will be explained below based on the drawings showing one embodiment.

The opening/closing device A of the present invention is used in an opening of a hangar for an aircraft, etc. as shown in FIG.
It controls the opening and closing of both doors B and C, and as shown in FIG. , a limit switch 2 that operates the motor cylinder 1, and a photoelectric switch 3 that senses the presence or absence of the horizontal door B and controls the switch for opening the vertical door C, and opens and closes the horizontal door B only when the vertical door C is closed. This sequence control allows the vertical door C to be opened freely only when the horizontal door B is opened.

In the figure, E indicates the horizontal door B, and a door pocket in which B is housed.

As shown in the figure, the guide rail D2 is also fixed to the lower end of the vertical RC, and when the guide rail D2 is closed, it is continuous with the guide rails D I and D + laid in the opening.

The motor cylinders 1, 1 are connected to the rod 1a as shown in FIG.
Direct the axis of the guide rail D+ toward the inside of the guide rail D.
, D+, and prevents the horizontal doors B and B from closing when the rod 1a is protruded, as shown in Fig. 3-■ and H,
Free it up when storing.

The operation of this motor cylinder 1 is performed by a limit switch 2 installed beside it and linked to the opening and closing of the vertical door C, and the limit switch 2 is fixed to the vertical door C as shown in Fig. 3-■ and ■. The rotation is switched between normal rotation and reverse rotation by a striker 4 provided protrudingly from the guide rail D2.

When the vertical door C opens (rises), the striker 4 collides with the limit switch 2 and activates it (forward rotation), pushing the rod 1a as a stopper of the horizontal door B toward the guide rail D1 side, and conversely when closing it. (When descending), the striker 4 similarly operates the limit switch 2 in the opposite direction (reverse direction) to house the rod 1a in the cylinder lb.

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.
It can be closed only when the vertical door C is closed.

The photoelectric switch 3 is similar to the limit switch 2 as shown in Fig. 3-
As shown in ■ and ■, it is installed beside the horizontal door B side of the motor cylinder 1, and when the horizontal mB is closed, it senses its presence and interlocks the switch for opening the vertical door C, making it impossible to open. , when the horizontal door B is opened, the absence is sensed and the interlock is released, allowing the vertical field C to be opened.

Next, the sequence operation of the main opening/closing device will be explained with reference to FIGS. 4 and 5.

First, while the horizontal doors B (left and right) and the vertical door C shown in FIG. 1-I are closed, the horizontal door BB is opened. This operation may be done manually or automatically.

Even if the switch for opening the vertical field C is operated before opening the horizontal doors B and B, the photoelectric switch 3.3 that detects the presence of the horizontal doors B and B will be blocked and will not operate. Figure 5-■). At this time, the photoelectric switches 3, 3 (two b contacts PH3 connected in series) are in the ON state.

Horizontal door B, after opening B, switch for opening vertical Bc, PB
Press and operate S to activate the photoelectric switches installed for left and right horizontal doors B and B.3. 3 (2 b contacts P II
S') detects the absence of horizontal doors B and B and becomes OFF (Fig. 5-11), and the vertical field C is opened by the self-holding of electromagnetic relay X1, resulting in the state shown in Fig. 1-■. .

When the vertical field C opens (rises), the left and right limit switches 2, 2 rotate in the normal direction, the a contacts LSy, LSz are turned on, the b contacts LSy, LSz are 0FF), and the rods la, la of the motor cylinders 1, 1 are pushed out. , From then on, horizontal doors B and B cannot be closed until vertical field C is closed (Fig. 5-■).

As shown in the figure, a contact glue switch LSy, L
B contact Y2 connected to Sz. B contact Y + connected to Z2 and B contact Glue Mitswitch and Sy, LSz,
Z + means electromagnetic relay Y +, Z + and Y z,
Z2 makes it an interlock circuit.

Conversely, if the vertical field C is closed by operating the switch for closing the vertical field C, PBS2 (photoelectric switch 2.2 (P
H3) is in the OFF state), limit switch 2.
2 is reversed, a contact LSy, LSz is 0FFXb contact L
Sy, LSz are ON), the rods la, la are drawn into the cylinders 1b, lb.

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

〔Effect of the invention〕

This invention is as described above, operates when the vertical field is opened, prevents the horizontal door from closing by the rod of the motor cylinder that protrudes into the guide rail, and also detects the presence of the horizontal door and operates the motor cylinder for opening the vertical door. The photoelectric switch that makes the switch inoperable prevents the opening of the vertical field, so the horizontal door can only be opened and closed when the vertical field is closed, and the vertical field can only be opened when the horizontal door is opened. Safety during opening and closing operations is ensured.

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

[Brief explanation of the drawing]

Fig. 1-1, If is an elevation view showing the hangar door when it is closed and opened, Fig. 2-1, II is a plan view and an elevation view showing an installation example of the present invention, respectively. Figure 3 - r, m
, m are a side view, a plan view, and a front view showing the details of the installation state, FIG. 4 is a sequence diagram showing an example of sequence control according to the present invention, and FIG. 5-I to ■ are door operations according to the present invention. It is a conceptual diagram showing a state. A...Switching device, ■...Motor cylinder, 1a...Rod, 1b...Cylinder, 2...Limit switch, 3.・・・・・・
Photoelectric switch, 4... Striker -15...
...Bracket, B...Horizontal door, C...
... Vertical field, D, D,, D2 ... Guide rail, E ... Door pocket. Fig. O Rod pull ■ X

Claims (1)

[Claims] (1) At the opening of a hangar that has a horizontal door that opens and closes in the horizontal direction and a vertical door that is installed continuously above the horizontal door and opens and closes in the vertical direction, It is attached to the guide rail that guides the horizontal door, and at the same time allows the horizontal door to open and close only when the vertical door is closed.
This is a door opening/closing device that allows the vertical door to be opened only when the horizontal door is opened, and includes a motor cylinder that is attached to the guide rail, prevents the horizontal door from closing when the rod protrudes, and frees it when it is stored, and the vertical door. When the motor cylinder opens and closes, the rod of the motor cylinder protrudes toward the guide rail.
A limit switch that retracts the rod when closed, and a photoelectric switch that senses the presence of a horizontal door when it is closed and interlocks the switch for opening the vertical door, and when it is opened, detects the absence of the horizontal door and releases the interlock. A door opening/closing device in a hangar consisting of: