JPH0762964A - Ladder stored in ceiling - Google Patents

Abstract

PURPOSE:To simply confirm the on or off of an electric apparatus. CONSTITUTION:An opening frame 1 is provided on a ceiling section to be communicated with the space in the ceiling. One end of a cover plate 2 is pivotally fitted to one end of the opening frame 1, and the cover plate 2 is openably fitted to the opening frame 1. A foldable ladder unit is installed on the upper face of the cover plate 2. An operation switch section 4 operating an electronic apparatus installed in the space in the ceiling when the cover plate 2 is opened or closed is provided at one end of the opening frame 1 where one end of the cover plate 2 is pivotally fitted. A rod 6 opening or closing a limit switch in a casing 7 is protruded from the casing 7 to constitute the operation switch section 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage room provided in an above-ceiling space and a ceiling storage ladder used when entering and exiting a room.

[0002]

2. Description of the Related Art In recent years, storage rooms and rooms have been formed in the space above the ceiling in order to make effective use of the space above the ceiling, and access to these storage rooms and rooms has been installed on the ceiling. Ceiling storage is done using a ladder. This is a ladder unit (not shown) that is stored in a state where the lid plate 2 installed on the ceiling is opened and folded to the upper surface side of the lid plate 2 to extend the ladder between the ceiling and the floor. A unit is erected, and the ladder unit is used to move in and out of a storage room or room.
And in these things, the electric equipment such as the ventilation fan and the lighting equipment may be installed in the storage room or the room formed in the above-ceiling space. Since it may take some time to find the operation switch when activating, the operation is performed at the end of the opening frame 1 on the opposite side to which the cover plate 2 is pivoted as shown in FIG. The switch section 4 is provided so that the electric device is automatically operated when the cover plate 2 is opened and closed. 6 is a lot rod for opening and closing the built-in limit switch.

[0003]

However, in the conventional example as described above, the operation switch section 4 is provided at the end of the opening frame 1 on the opposite side to which the cover plate 2 is attached. Therefore, when the electric device is a lighting fixture, the operation switch unit 4 is not operated by the lid plate 2 unless the lid plate 2 is completely closed before the lid plate 2 is closed and the lighting fixture is turned off. There was a problem that it was difficult to confirm whether the lighting equipment was turned off.

An object of the present invention is to solve the above-mentioned problems, and an object thereof is to provide a ceiling storage ladder capable of easily confirming the on / off state of an electric device.

[0005]

According to the present invention, in order to achieve the above-mentioned object, an opening frame 1 is installed in a ceiling portion so as to communicate with the space above the ceiling, and one end of the opening frame 1 is provided with one end of a lid plate 2. The lid plate 2 is attached to the opening frame 1 so as to be openable and closable, the foldable ladder unit 3 is installed on the upper surface of the lid plate 2, and one end of the lid plate 2 is attached to the opening frame 1 which is axially attached. An operation switch section 4 for operating an electric device installed in the space above the ceiling when the lid plate 2 is opened / closed is provided at one end, and a lot rod 6 for opening / closing an internal limit switch 5 is protruded from a casing 7. This is characterized in that the operation switch section 4 is configured.

Further, the second aspect is characterized in that the opening frame 1 is provided with a positioning portion 8 for aligning the mounting position of the operation switch portion 4.

[0007]

Thus, the operation switch portion 4 formed by projecting the lot rod 6 for opening and closing the internal limit switch 5 from the casing 7 is provided with one end of the opening frame 1 to which one end of the cover plate 2 is axially attached. With this arrangement, when the lid plate 2 is closed, when the lid plate 2 is moved in the closing direction, the lot rod 6 is immediately pushed by the lid plate 2 and the limit switch 5 is operated.

[0008]

The present invention will be described below in detail based on the illustrated embodiments. An opening is provided in the ceiling so as to communicate with the space behind the ceiling, and a rectangular opening frame 1 is attached to this opening. As shown in FIG. 1 or FIG. 5, a lid plate 2 is attached to the opening frame 1 so as to be pivotally attached at one end thereof, and a lid unit 3 is installed on the upper surface side of the lid plate 2. ing. Inner surface of opening frame 1 and lid plate 2
A foldable support link 9 is provided between and, and the cover plate 2 opened by the support link 9 is suspended and held at a predetermined opening angle.

The ladder unit 3 installed on the upper surface side of the lid plate 2 is a fixed ladder 3a attached to the upper surface of the lid plate 2.
And a movable ladder 3 connected to the end of the fixed ladder 3a by a connecting link 10 so as to be foldable in only one direction.
b and a movable ladder 3c connected to the end of the movable ladder 3b by a connecting link 10 so as to be foldable in only one direction.

As shown in FIG. 1, at one end of an opening frame 1 to which one end of a cover plate 2 is axially attached, an operation switch section for operating electric equipment such as a ventilation fan and lighting equipment installed in the space above the ceiling. 4 is provided, and the operation switch section 4 is operated by opening and closing movement of the cover plate 2 which is opened and closed. As shown in FIGS. 2 to 4, the operation switch unit 4 includes a chassis 12 to which parts such as a terminal block 11, a limit switch 5 and a lot rod 6 are attached, and a cover 13 to be attached to the chassis 12 so as to cover the above parts. The main body is constituted by and is attached to the inner surface of the opening frame 1. Here, the casing 7 is formed by the chassis 12 and the cover 13.

A support plate 14 is projected from the end of the chassis 12 so as to face the bottom plate 12a of the chassis 12, and the lot rod 6 is inserted into a through hole formed in the bottom plate 12a and the support plate 14. Thus, it is supported by the bottom plate 12a and the support plate 14. A supporting protrusion 15 is provided on the lot rod 6 so as to be located inside the bottom plate 12a, and a spring such as a coil spring is mounted between the supporting protrusion 15 and the support plate 14 so as to be mounted on the lot rod 6. The member 16 is arranged. The lot rod 6 is always urged downward by the spring member 16, and when the lid plate 2 is moved in the closing direction, the lot rod 6 is moved upward by the lid plate 2, whereby the upper end of the lot rod 6 is moved. Pushes the operation piece 5a of the limit switch 5 to turn on the electric device. Further, when the lid plate 2 is moved in the opening direction, the lot rod 6 moves downward together with the movement of the lid plate 2, so that the upper end of the lot rod 6 is separated from the operation piece 5a of the limit switch 5, and the electric device is It is turned off. That is, when the electric device is a lighting fixture, the lighting fixture is turned on when the lid plate 2 is opened, and the lighting fixture is automatically turned off when the lid plate 2 is closed.

A positioning portion 8 for aligning the mounting position of the operation switch portion 4 is provided on the inner side surface of the opening frame 1 to which the operation switch portion 4 is attached.
The operation switch section 4 is attached to the inner side surface of the opening frame 1 so that the lower end is aligned with the positioning section 8. The positioning portion 8 is formed by a recessed portion 8a in which the lower portion of the inner side surface of the opening frame 1 is partially recessed, and the operation switch portion 4 is attached so that the lower end of the chassis 12 is aligned with the upper end of the recessed portion 8a. Thus, the projecting amount of the lot rod 6 protruding into the opening frame 1 can be set to a predetermined size.

However, when the lid plate 2 is opened to reach a predetermined angle, the lot rod 6 moves downward together with the movement of the lid plate 2 in the opening direction, whereby the operation piece 5 of the limit switch 5 is moved.
a moves to turn on the electric device, and when the electric device is a lighting device, the lighting device is automatically turned on by opening the cover plate 2. Also, the lid plate 2
When the lid is moved in the closing direction, the lot bar 6 is pushed upward at the same time as the lid plate 2 is moved, whereby the operation piece 5a of the limit switch 5 is moved to turn off the electric device. The luminaire is automatically turned off by closing the plate 2. Here, since the operation switch unit 4 is attached to one end of the opening frame 1 to which one end of the cover plate 2 is attached, the cover plate 2 is moved in the closing direction and at the same time the lot rod 6 is pushed up by the cover plate 2. The lighting device is turned off by slightly moving the cover plate 2 in the closing direction, and the operation switch unit 4 is moved.
Can be visually confirmed at the same time as the operation of the cover plate 2 that the illuminating device is turned off by operating.

[0014]

As described above, according to the present invention, the opening frame is installed in the ceiling so as to communicate with the space above the ceiling, and one end of the lid plate is axially attached to one end of the opening frame so that the opening frame can be opened and closed. The lid plate was attached, and a foldable ladder unit was installed on the upper surface of the lid plate.One end of the lid plate was installed in the space above the ceiling with the opening and closing of the lid plate at one end of the opening frame. The operation switch section for operating electrical equipment is provided, and the above-mentioned operation switch section is configured by projecting a lot rod that opens and closes the internal limit switch from the casing. When the rod is moved in the closing direction, the lot rod is pushed by the lid plate and the limit switch is operated immediately.In the case where the electrical equipment is a lighting fixture, the lighting fixture will be closed until just before the lid plate is completely closed. It ’s no longer going off In which the OFF state of the electric device can reliably confirm by eye while closing the cover plate. Further, the stroke of the lot rod for operating the limit switch can be shortened, and the operation switch section can be made compact.

Further, according to the present invention, since the opening frame is provided with the positioning portion for aligning the mounting position of the operation switch portion, the operation switch portion is attached to the opening frame in accordance with the positioning portion. By doing so, it is possible to easily attach the operation switch portion to an accurate position without taking time and effort.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a mounting position of an operation switch unit before a cover is mounted.

FIG. 3 is a front view showing a state in which the above cover is removed.

FIG. 4 is a side sectional view showing a state in which the above cover is removed.

FIG. 5 is an overall configuration diagram.

FIG. 6 is a schematic configuration diagram of a conventional example.

[Explanation of symbols]

 1 Opening frame 2 Lid plate 3 Ladder unit 4 Operation switch section 5 Limit switch 6 Lot rod 7 Casing 8 Positioning section

Claims (2)

[Claims] 1. An opening frame is installed in the ceiling so as to communicate with the space above the ceiling, and one end of the lid plate is pivotally attached to one end of the opening frame to attach the lid plate to the opening frame so that the lid can be opened and closed. An operation switch that installs a foldable ladder unit on the upper surface of the board and operates the electrical equipment installed in the space above the ceiling with the opening and closing of the lid plate at one end of the opening frame with one end of the lid plate pivoted. Part,
A ceiling storage ladder characterized in that the operation switch section is constructed by projecting a lot rod for opening and closing an internal limit switch from a casing. 2. The ceiling stowage ladder according to claim 1, wherein the opening frame is provided with a positioning portion for aligning a mounting position of the operation switch portion.