JP2002241069A - Ceiling lid opening and closing device - Google Patents

Abstract

(57) [Problem] To provide a ceiling lid opening / closing device which is compact and easy to operate. SOLUTION: A horizontal moving means provided with a ceiling lid for closing a ceiling opening and arranged on the backside of the ceiling, and the horizontal moving means is vertically moved from the ceiling surface to a predetermined lower position on the backside of the ceiling. Provided with a vertical up and down moving means provided, after lowering the ceiling lid from the ceiling surface by the vertical up and down moving means, laterally moving the ceiling lid by the horizontal moving means, the ceiling opening It is characterized by being opened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling lid opening / closing device which is disposed on the backside of a ceiling and which opens and closes a ceiling lid for closing a ceiling opening of the ceiling. Rather, the present invention relates to a device that opens and closes on the lower side of the ceiling, for example, a ceiling lid opening and closing device for an elevator cab.

[0002]

2. Description of the Related Art The prior art will be described with reference to FIGS. 12 and 13 by taking an example of a ceiling lid opening / closing device for an elevator cab. FIG. 12 is a plan view of the ceiling of the cab as viewed from below, and FIG. 13 is a sectional view taken along line GG of FIG.

In FIG. 12 and FIG.
Is a basket chamber, the outer periphery of which is formed by a top plate 2 and an outer plate such as a bottom plate and a peripheral wall plate. The top plate 2 is provided with a top plate opening 3 serving as an emergency rescue and inspection port, and an outer plate lid 4 is provided in the top plate 2 so as to be freely opened outward. The outer panel cover 4 serves as an exit for passengers in an emergency, and a lighting fixture 6 or the like disposed between the top panel 2 and a ceiling 5 described later, that is, the back of the ceiling during inspection work. Used as an inspection port when inspecting from above the plate 2. Reference numerals 17 and 17 denote outer cover stoppers to which the free end side of the outer cover 4 of the outer cover 4 is fixed.

[0004] The ceiling 5 of the cab 1 is approximately 2
It is suspended at a small interval of about 00 mm. In the ceiling 5, a ceiling opening 8 as an emergency rescue device similar to the top plate opening 3 is opened corresponding to the top plate opening 3. The ceiling opening 8 has a ceiling lid 9
When viewed from the lower surface side of the ceiling 5, that is, from the inside of the cage room 1, the door 5 is provided so as to be openable inward toward the inside. In addition, 10 is a hinge of the ceiling lid 9, 11 is a ceiling lid stopper to which the free end side of the ceiling lid 9 is fixed, and 12 is a lighting plate.

[0005] The ceiling opening / closing device of the elevator cab 1 configured as described above is opened / closed as follows. First, a worker riding on the top plate 2 loosens, for example, a not-shown thumb screw or the like of the outer plate lid stopper 7, lifts the top plate lid 4 outward, and pushes the top plate opening 3. To open. next,
The hand is lowered from the top plate opening 3, and the ceiling lid stopper 11 is loosened in the same manner as the outer panel lid stopper 7 described above. When the ceiling lid stopper 11 is released, the free end side of the ceiling lid 9 hangs down in the basket chamber 1 with a large arc centered on the hinge 10, whereby the ceiling opening 8 is opened.

[0006] The ceiling opening 8, which serves as an evacuation exit in an emergency, is preferably as large as possible so that passengers can escape easily. However, according to the opening area of the ceiling opening 8, the ceiling lid 9 naturally becomes large. Therefore, in the above-described configuration, at the time of opening, the free end side hangs down long in the basket chamber 1, and for example, However, when the seats are full, there is a risk of passengers. For this reason, there is a legal restriction that the free end of the hanging ceiling lid 9 is 1800 mm or more above the floor.

In the conventional ceiling lid opening and closing device as described above, the ceiling 5 needs to be sufficiently high in order to satisfy the laws and regulations and to make the ceiling opening 8 large. Then, there arises a problem that the capacity and weight of the basket chamber 1 increase.

As a ceiling lid opening / closing device which solves such a problem, for example, as disclosed in Japanese Utility Model Laid-Open No.
A device has been proposed in which a ceiling lid is pulled up to the back side of the ceiling of the basket room 1 and is moved laterally on a guide rail laid behind the ceiling. However, this apparatus has an advantage that the ceiling lid does not open inside the basket room 1, but in an emergency requiring an emergency, a worker riding on the top plate lowers his hand, and the relatively heavy ceiling lid is used. Must be lifted and mounted on the guide rails behind the ceiling, which requires a sufficient amount of power, and has poor workability and requires time for opening and closing the ceiling lid. In addition, the arrangement of lighting equipment, electric wiring, and the like in the car room 1 must be considered in the back of the ceiling where there is only a small gap between the ceiling plate 2 and the ceiling. A major design problem arises. In addition, in order to lay the guide rails behind the ceiling, the ceiling structure must be able to withstand the load of the guide rails and the ceiling lid, and there is a problem that the manufacturing cost increases.

[0009]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a ceiling lid opening / closing apparatus which can be quickly and easily opened, for example, a ceiling opening / closing apparatus for an elevator cab. I do.

[0010]

According to a first aspect of the present invention, there is provided an apparatus for opening and closing a ceiling lid, comprising: a horizontal moving means provided with a ceiling lid for closing a ceiling opening and disposed on the back side of the ceiling; Vertical vertical moving means disposed on the rear surface side of the ceiling for moving the ceiling lid to a position lower than the ceiling surface, and after the ceiling lid is lowered from the ceiling surface by the vertical vertical moving means, the horizontal moving means The ceiling lid is laterally moved to open the ceiling opening.

According to a second aspect of the present invention, in the ceiling lid opening and closing apparatus according to the first aspect, the vertical up-down moving means has a descent speed reducing means for reducing a descent speed.

[0012] The invention of claim 3 is claim 1 or claim 2.
In the ceiling lid opening and closing device according to the above, the horizontal direction moving means is pivotally mounted on the vertical up and down direction moving means via a tilt center axis orthogonal to the moving direction, and can be tilted in a predetermined direction when descended. It is characterized by having done.

According to a fourth aspect of the present invention, in the ceiling lid opening / closing device according to the third aspect, the tilt center axis is provided so as to be out of the center of gravity of the horizontal moving means in the moving direction.

The invention according to claim 5 is the invention according to claims 1 to 4.
In the ceiling lid opening / closing device according to any one of the above, the vertical up-down direction moving means is provided so as to be vertically movable via a roller, and a vertical guide member appropriately disposed around the ceiling opening. A vertical frame formed in the vertical guide member, and a stopper member inserted into the vertical range regulating slot.

According to a sixth aspect of the present invention, in the ceiling lid opening / closing apparatus according to the fifth aspect, the descent speed reducing means is a spring for reducing a descent speed of the lifting frame.

The invention according to claim 7 is the invention according to claims 1 to 6.
Wherein the horizontal moving means is a slide rail slidably mounted below the vertical up and down moving means.

According to an eighth aspect of the present invention, in the ceiling lid opening / closing device according to the seventh aspect, the slide rail has at least one child slide rail that slides out of the slide rail main body, and the slide rail is moved first. A ceiling lid is attached to the child slide rail at the position.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, a description will be given based on FIGS. 1 to 6 showing the first embodiment of the present invention. 1 is a plan view of the ceiling opening and closing device as viewed from the elevator cabin, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is B of FIG.
1 is a cross-sectional view taken along the line B, FIG. 4 is a side view showing the ascending / descending range regulating slot and the stopper member, FIG. 5 is a plan view of FIG. 4, and FIG.
FIG. 7 is a sectional view taken along line D-D of FIG. 2.
The same reference numerals and symbols as those in FIGS. 12 and 13 have substantially the same contents.

1 to 3, the ceiling lid opening / closing device according to the first embodiment is arranged so as to fit on the back side of a ceiling 5 and has a ceiling lid 9 for closing a ceiling opening 8 at a lower portion thereof. Direction moving means is provided. The horizontal moving means moves the ceiling lid 9 substantially parallel to the surface of the ceiling 5 when it is lowered to a lower side of the ceiling 5, that is, a predetermined position below the ceiling surface by a vertical vertical moving means 20 described later. Move it,
This is a means for widening the ceiling opening 8.

2, 5 and 6, the horizontal moving means shown in this example uses a slide rail slidably mounted below the vertical moving means 20. The slide rail 30 is a vertical up and down moving means 2
0, and a child slide rail 32 slidably housed in the slide rail body 31, but the present invention is not limited to this.
It may have a third child slide rail (not shown). In any case, the ceiling lid 9 is attached to the slide rail 32 at the earliest position where the slide lid slides out.

The slide rail 30 is mounted on the vertical moving means 20 by attaching the slide rail body 31 to the vertical moving means 20 via a mounting member 34. The mounting member 34 includes the child slide rail 32
There is provided a thumb screw 35 as a locking means for preventing free sliding of the screw (FIG. 7). Therefore, prior to use, the thumb screw 35 must be loosened.

Next, the vertical moving means 20 vertically moves the horizontal moving means (30) to a predetermined lower position lower than the height position of the surface of the ceiling 5 (hereinafter also referred to as the ceiling surface). These are means provided on the back side of the ceiling 5. The predetermined lower position lower than the height position of the ceiling surface is defined as a position necessary for the horizontal moving means (30) lowered by the vertical moving means 20 to move the ceiling lid 9 laterally. It refers to the position giving the minimum distance from the ceiling surface, and this distance is preferably as small as possible.

The illustrated vertical up and down moving means 20 is appropriately disposed around the ceiling opening 8, and has four L-shaped vertical guide members 21 whose upper ends are fixed to the top plate 2 and which hang down.
21, 21, 21 and these vertical guide members 21,
An elevating frame 23 is provided as a sliding body so as to be able to ascend and descend via a roller 22, for example. In FIG.
Rollers 2 protruding from a lifting frame 23 are respectively provided on two guide surfaces of each vertical guide member 21 which are in contact at right angles.
2 and 22 are respectively addressed, so that the lifting frame 23 is
The rattling in the dimensional direction is eliminated, and it is possible to move up and down smoothly without causing a positional shift.

Referring to FIGS. 4 and 5, each of the vertical guide members 21 is provided with a vertically movable range regulating slot 24 for defining a vertically movable range of the vertically movable frame 23. The lifting frame 2 is provided in each of the lifting range regulating slots 24.
A pin 25 as a stopper member protruding from 3 is inserted therethrough. Further, in order to keep the lifting frame 23 at a position above the vertical guide member 21, the lifting frame 23 which is pulled up to a position above each vertical guide member 21 and is in a standby state is provided on the outer surface of the top plate 2. A thumb screw 26 as a fixing means for fixing is projected. Therefore, when the thumb screw 26 is loosened during use, the ceiling lid 9 drops together with the lifting frame 23.

According to the first embodiment, the ceiling cover 9 of the elevating frame 23 is
, The ceiling lid 9 is temporarily lowered to a lower position in a horizontal state, and then is manually moved laterally along the ceiling surface by the horizontal moving means (30) to open the ceiling opening 8 largely. be able to. Therefore, as in the conventional case,
Since there is no need to lift the robot, anyone can operate quickly and easily without the need for power. In addition, the required working space below the ceiling surface can be made smaller and more compact than in the case where the ceiling lid hangs in a one-sided manner as before, and the regulation of the height above the floor to the lower end of the ceiling lid when the ceiling lid is open can be made. The above constraint can be sufficiently satisfied. Further, the capacity and weight of the car room 1 can be made compact as far as necessary, and the manufacturing cost can be reduced.

Embodiment 2 FIG. The second embodiment is different from the first embodiment in that the lifting frame 23 during the vertical movement is
In order to reduce the descent speed and impact of the horizontal moving means (30) mounted on the lifting frame 23 and the ceiling lid 9 mounted on the horizontal moving means (30), the vertical moving means 20 is used. Is provided with a descent speed reducing means 28. This will be described with reference to FIG. FIG. 8 is an enlarged view of a main part of the present apparatus. The lowering speed reducing means 28 shown in the figure is a tension coil spring, one end of which is locked to the top plate 2, and the other end of which is locked to the lifting frame 23. One end of the tension coil spring 28 may be engaged with the vertical guide member 21 or the nearest suitable place instead of the top plate 2. The tension of the tension coil spring 28 is, for example, insufficient to support the load of the elevating frame 23 and the ceiling lid 9, and the elevating frame 23 and the ceiling lid 9 are extended until the descent ends. Of course, the descent speed reducing means 28 is not limited to this example, and an appropriate buffer means can be used.

According to the second embodiment, the vertical up-down moving means 20 is provided with a spring as the descent speed reducing means 28,
Since it is configured to be interposed between the top plate 2 and the lifting frame 23, the lifting frame 23 and the horizontal moving means (3
0) Furthermore, the descent speed and impact of the ceiling lid 9 can be reduced, and the device can be operated smoothly.
In addition, even if the ceiling lid 9 is formed large and has a large weight in order to make the ceiling opening 8 large, it can be operated easily without any unnecessary load when moving vertically, that is, when descending. be able to.

Embodiment 3 The third embodiment is different from the first or second embodiment in that the ceiling lid 9 of the horizontal moving means (30) attached to the lower part of the elevating frame 23 of the vertical up and down moving means 20 is fixed to a predetermined position from the ceiling surface. When the ceiling cover 9 is tilted in the inclined direction via the tilting means (40) for tilting the horizontal moving means (30) in a predetermined direction when it is lowered to a position below, that is, when it is lowered to a position where it can be moved laterally. It is configured to be moved laterally. This will be described with reference to FIGS. 9 is an enlarged view of an essential part for explaining the operation of the horizontal moving means, FIG. 10 is a sectional view taken along line EE of FIG.
1 is a sectional view taken along line FF of FIG.

In FIG. 9, the tilting means shown in this example includes:
When the slide rail 30 as a horizontal moving means is attached to the lower part of the lifting frame 23, the slide rail 30 is moved in a direction perpendicular to the moving direction of the slide rail 30, that is, the lateral movement direction of the ceiling lid 9. A tilt center axis 40 is provided at a position other than the center of gravity in the center in the longitudinal direction, and the slide rail 30 is provided via the tilt center axis 40.
Frame 2 of the vertical up and down moving means 20 so that the
3 is attached to the shaft.

In this example, a commercially available two-stage product is used for the slide rail 30, and the sliding member housed in the first-stage slide rail 31 is a sheath of the first-stage slide rail 31. In this state, the slide rails slide out to the limit due to the inclination, and the second slide rail 32 is guided by the slide-out member to slide out to the limit as much as possible. In this manner, the ceiling lid 9 is horizontally moved in the horizontal direction by the slide rail 30. Since the ceiling lid 9 is fixed to the slide rail 30, the lateral movement distance is limited to the ceiling in which the ceiling lid 9 is an exit. It is necessary to completely separate from the opening 8. Therefore, it is necessary to use a guide rail 30 having a slide-out length corresponding to a required lateral movement distance.

By configuring the tilting means (40) as described above, the slide rail 30 can be rocked and tilted in a predetermined direction, for example, by a slight impact when the lifting frame 23 descends. (Left in FIG. 9). Depending on the inclination angle, the first-stage slide rail 3 may be used as it is following the inclination operation.
1 may be configured to slide out. Of course, in this case,
The thumbscrew 35 is loosened in advance. This inclination direction is, of course, the direction on the side of the center of gravity. Further, the inclination angle may not be the angle at which the slide rail 30 slides out naturally, but may be, for example, the angle at which the slide rail 30 slides out smoothly by applying a moderate force in the slide-out direction. in this case,
After the slide rail 30 has been lowered, the thumb screw 35
And let it be sent out manually. In order to allow the slide rail 30 to slide out naturally when it descends, a thumb screw 35 which is a locking means of the slide rail 30 is previously provided.
Need to be loosened.

According to this embodiment, when the slide rail 30 as the horizontal moving means is tilted, it can be tilted when it descends.
And the ceiling lid 9 can be moved quickly and easily laterally.

[0033]

According to the first to eighth aspects of the present invention, any of the above objects is provided as a ceiling lid opening / closing device which can be quickly and easily opened / closed, particularly as a ceiling opening / closing device for an elevator cab. be able to. In addition, since the opening and closing operation range of the ceiling lid at the ceiling opening used as an emergency rescue exit and an inspection door can be made compact, ceilings with regulations such as narrow rooms such as elevator cabs and height restrictions on the floor. It can be used as a lid opening and closing device. In addition, since the ceiling lid moves vertically up and down with respect to the ceiling surface, the gap between the ceiling lid and the opening edge of the ceiling opening can be minimized, thereby reducing the presence of the ceiling lid with respect to the ceiling surface. It is possible to provide a ceiling lid opening / closing device that does not impair the design property (appearance) such as being able to be thinned.

According to the second and sixth aspects of the present invention,
In any case, since the descent speed and impact of the elevating frame of the vertical moving member are alleviated by the descent speed reducing means, the horizontal moving means mounted on the elevating frame and the ceiling lid mounted on the horizontal moving means can be used. The descent speed and impact are alleviated, and the device can be operated smoothly. Also, in order to make the ceiling opening large, even if the ceiling lid is formed large and has increased weight, unnecessary load is not applied at the time of vertical movement,
It can be operated smoothly.

According to the third and fourth aspects of the present invention,
In any case, when the horizontal moving means is lowered, it can be inclined in a predetermined direction, so that the lateral movement of the ceiling lid can be performed easily and quickly.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first embodiment.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line B-B of FIG. 2;

FIG. 4 is a side view showing a vertically movable range restricting elongated hole and a stopper member.

FIG. 5 is a plan view illustrating a vertically movable range restricting elongated hole and a stopper member.

FIG. 6 is a sectional view taken along the line C-C in FIG. 2;

FIG. 7 is a sectional view taken along line DD of FIG. 2;

FIG. 8 is an enlarged view of a main part of the second embodiment.

FIG. 9 is an enlarged view of a main part of the third embodiment.

FIG. 10 is a sectional view taken along line EE of FIG. 9;

11 is a sectional view taken along line F-F in FIG. 9;

FIG. 12 is a plan view of a conventional device.

FIG. 13 is a sectional view taken along line GG of FIG.

[Explanation of symbols]

1 cab room, 2 top plate, 3 top plate opening, 4 outer plate lid,
5 ceiling, 8 ceiling opening, 9 ceiling lid, 20 vertical vertical movement means, 21 vertical guide member, 22 rollers,
23 elevating frame, 24 elevating range regulating slot, 25 stopper member, 26 thumb screw, 30 horizontal moving means,
31 Slide rail body, 31, 32, child slide rail, 35 thumbscrew, 40 tilting center axis (tilting means).

Claims (8)

[Claims] 1. A horizontal moving means provided with a ceiling lid for closing a ceiling opening and disposed on a rear surface side of a ceiling, and is disposed on the rear surface side of the ceiling for moving the horizontal moving means to a position below the ceiling surface. Vertical up and down moving means, and lowering the ceiling lid from the ceiling surface by the vertical up and down moving means, then laterally moving the ceiling lid by the horizontal moving means to open the ceiling opening. A ceiling lid opening and closing device characterized by the above-mentioned. 2. The ceiling lid opening / closing device according to claim 1, wherein the vertical up / down moving means has a descent speed reducing means for reducing a descent speed. 3. The horizontal moving means is pivotally mounted on a vertical up and down moving means via a tilting center axis orthogonal to the moving direction, and is capable of tilting in a predetermined direction when it descends. The ceiling lid opening / closing device according to claim 1 or 2, wherein 4. The ceiling lid opening / closing device according to claim 3, wherein the tilting center axis is provided at a position shifted from the center of gravity of the horizontal moving means in the moving direction. 5. The vertical up-down direction moving means includes a vertical guide member appropriately disposed around the ceiling opening, an elevating frame body movably disposed on the vertical guide member via a roller, and 5. The vertical guide member according to claim 1, further comprising: an elevating range restricting elongated hole formed in a vertical direction, and a stopper member inserted through the elevating range restricting elongated hole. 6. Ceiling lid opening and closing device. 6. The ceiling lid opening / closing device according to claim 5, wherein the descent speed reducing means is a spring that reduces a descent speed of the lifting frame. 7. The ceiling lid opening / closing device according to claim 1, wherein the horizontal moving means is a slide rail slidably mounted below the vertical moving means. 8. The slide rail has at least one child slide rail that slides out of the slide rail main body, and a ceiling lid is mounted on the child slide rail at the earliest position where the slide rail slides out. The ceiling lid opening / closing device according to claim 7.