JP4809982B2 - Ceiling lid opening and closing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ceiling lid opening and closing device that is disposed on the ceiling back surface side and holds the ceiling lid that closes the ceiling opening of the ceiling so as to be freely opened and closed. Specifically, the ceiling lid is not on the ceiling back surface side but on the ceiling bottom surface side. The present invention relates to a device for opening and closing, for example, a ceiling lid opening and closing device for an elevator cab.
[0002]
[Prior art]
The prior art will be described with reference to FIGS. 12 and 13 by taking the ceiling lid opening / closing device of the elevator cab as an example. 12 is a plan view of the ceiling of the cab viewed from below, and FIG. 13 is a cross-sectional view taken along the line GG of FIG.
[0003]
In FIG.12 and FIG.13, the code | symbol 1 in a figure is a basket chamber, The outer periphery is formed with outer plates, such as the top plate 2, a baseplate, and a surrounding wall board.
The top plate 2 is provided with a top plate opening 3 as an emergency rescue and inspection port, and an outer plate lid 4 is provided on the top plate 2 so as to be freely opened in the outward direction.
The outer cover 4 serves as an exit for passengers in an emergency, and a lighting fixture 6 or the like disposed between the top plate 2 and a ceiling 5 to be described later, that is, at the back of the ceiling, for inspection work. Used as an inspection port when inspecting from above the plate 2. Reference numerals 17 and 17 denote outer plate lid stoppers to which the free end side of the outer plate lid 4 of the outer plate lid 4 is fastened.
[0004]
The ceiling 5 of the cab 1 is suspended from the top plate 2 with a narrow interval of about 200 mm. In the ceiling 5, a ceiling opening portion 8 as an emergency rescue bout is opened corresponding to the top plate opening portion 3, similar to the top plate opening portion 3.
A ceiling lid 9 is provided in the ceiling opening 8 so as to be able to be opened in one direction toward the inner side when viewed from the lower surface side of the ceiling 5, that is, from the inside of the car room 1. 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 secured, and 12 is a lighting plate.
[0005]
The ceiling opening / closing device of the elevator cab 1 configured as described above is opened and closed as follows.
First, an operator who rides on the top plate 2 loosens, for example, a not-shown thumbscrew or the like of the outer plate lid stopper 7 and lifts the top plate lid 4 outward, and the top plate opening 3 Open.
Next, a hand is put down from the top plate opening 3, and the ceiling lid stopper 11 is loosened in the same manner as the outer plate lid stopper 7.
When the ceiling lid stopper 11 is released, the free end side of the ceiling lid 9 hangs down into the basket chamber 1 while drawing a large arc around the hinge 10, whereby the ceiling opening 8 is opened.
[0006]
The ceiling opening 8 serving as an evacuation port in an emergency is preferably as large as possible so that passengers can escape easily.
However, since the ceiling lid 9 naturally increases in accordance with the opening area of the ceiling opening 8, in the configuration as described above, at the time of opening, the free end side hangs down into the basket chamber 1, for example, In a full condition, it can be a danger for passengers. For this reason, there is a legal regulation that the free end portion of the hanging ceiling lid 9 is 1800 mm or more above the floor.
[0007]
In the conventional ceiling lid opening and closing device as described above, if the ceiling is satisfied, and the ceiling opening 8 is to be opened largely, it is necessary to make the ceiling 5 sufficiently high. The problem is that the capacity and weight of the chamber 1 increase.
[0008]
As a ceiling lid opening / closing device that solves such a problem, for example, as disclosed in Japanese Utility Model Publication No. 54-45058, the ceiling lid is pulled up on the back side of the ceiling of the cage room 1 and placed on a guide rail laid on the back of the ceiling. A moving device has been proposed.
However, although this apparatus has an advantage that the ceiling lid does not open inside the basket room 1, in an emergency requiring an emergency, an operator who rides on the top board lowers his hand and this relatively heavy ceiling lid. There is a problem that a required amount of force is required and the workability is poor and it takes time to open and close the ceiling lid.
In addition, in the back of the ceiling where there is only a slight gap between the top plate 2 and the lighting equipment and electrical wiring in the cab 1 must be taken into consideration, if a large ceiling lid is to be stored, A big design problem arises.
In addition, in order to lay the guide rail on the back of the ceiling, the ceiling structure must be able to withstand the load of the guide rail and the ceiling lid, which increases the manufacturing cost.
[0009]
[Problems to be solved by the invention]
An object of the present invention is to provide a ceiling lid opening / closing device that solves the above-described problems and can be opened quickly and easily, for example, a ceiling opening / closing device for an elevator cab.
[0010]
[Means for Solving the Problems]
The invention of the ceiling lid opening and closing device according to claim 1 is directed to a horizontal direction moving means that is mounted on a ceiling back surface side and is fitted with a ceiling lid that closes the ceiling opening, and the horizontal direction moving means is moved to a position below the ceiling surface. Vertical vertical movement means disposed on the back side of the ceiling, and after the ceiling lid is lowered from the ceiling surface by the vertical vertical movement means, the horizontal movement means is used to move the ceiling lid laterally, The ceiling opening is opened.
[0011]
According to a second aspect of the present invention, in the ceiling lid opening and closing device according to the first aspect, the vertical vertical direction moving means has a descent speed mitigating means for mitigating the descent speed.
[0012]
According to a third aspect of the present invention, in the ceiling lid opening / closing apparatus according to the first or second aspect, the horizontal movement means is tiltable to the vertical vertical movement means via a tilt central axis perpendicular to the movement direction. It is characterized in that it can be tilted in a predetermined direction when worn and lowered.
[0013]
According to a fourth aspect of the present invention, in the ceiling lid opening and closing device according to the third aspect, the tilting center axis is provided by removing the position of the center of gravity of the horizontal direction moving means in the moving direction.
[0014]
According to a fifth aspect of the present invention, in the ceiling lid opening / closing apparatus according to any one of the first to fourth aspects, the vertical vertical movement means includes a vertical guide member appropriately disposed around the ceiling opening, An elevating frame body disposed on a vertical guide member so as to be movable up and down via a roller, an elevating range restricting long hole formed in the vertical direction on the vertical guide member, and a stopper member inserted through the elevating range restricting long hole It is characterized by having.
[0015]
According to a sixth aspect of the present invention, in the ceiling lid opening / closing apparatus according to the fifth aspect, the descent speed relaxation means is a spring that moderates the descent speed of the elevating frame body.
[0016]
A seventh aspect of the present invention is the ceiling lid opening and closing device according to any one of the first to sixth aspects, wherein the horizontal direction moving means is a slide rail slidably attached to a lower portion of the vertical vertical direction moving means. And
[0017]
According to an eighth aspect of the present invention, in the ceiling lid opening and closing device according to the seventh aspect, the slide rail has at least one child slide rail that slides out from the slide rail body, and the child at the earliest position that has been slid out A ceiling lid is attached to the slide rail.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a plan view of a ceiling opening / closing device looking up from an elevator cab, FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, FIG. 3 is a cross-sectional view taken along line B-B in FIG. 5 is a plan view of FIG. 4, FIG. 6 is a sectional view taken along the line CC of FIG. 2, and FIG. 7 is a sectional view taken along the line DD of FIG. The same reference numerals and symbols as those in FIGS. 12 and 13 have substantially the same contents.
[0019]
1 to 3, the ceiling lid opening / closing device shown in the first embodiment is arranged so as to be accommodated on the back side of the ceiling 5, and a horizontal direction moving means in which a ceiling lid 9 that closes the ceiling opening 8 is attached to the lower part. It has.
The horizontal direction moving means moves the ceiling lid 9 horizontally and substantially parallel to the surface of the ceiling 5 when it is lowered to a predetermined position below the ceiling 5 by the vertical vertical direction moving means 20 described later. It is a means to move and open the ceiling opening part 8 largely.
[0020]
2, 5, and 6, the horizontal movement means shown in this example uses a slide rail that is slidably attached to the lower part of the vertical vertical movement means 20.
The slide rail 30 includes a slide rail main body 31 attached to the vertical vertical movement means 20 and a child slide rail 32 slidably accommodated in the slide rail main body 31. 2. A third child slide rail (not shown) may be provided. In any case, the ceiling lid 9 is mounted on the slide rail 32 at the earliest position that is slid out in such a slide rail.
[0021]
The slide rail 30 is attached to the vertical vertical movement means 20 by attaching the slide rail body 31 to the vertical vertical movement means 20 via the attachment member 34. The attachment member 34 is provided with a thumbscrew 35 as a locking means for preventing the child slide rail 32 from freely sliding out (FIG. 7).
Therefore, the knob screw 35 must be loosened before use.
[0022]
Next, the vertical vertical movement means 20 vertically moves the horizontal movement means (30) to a predetermined lower position lower than the height position of the surface of the ceiling 5 (hereinafter also referred to as a ceiling surface). It is a means arrange | positioned at the back surface side. The predetermined lower position lower than the height position of the ceiling surface means that the horizontal movement means (30) lowered by the vertical vertical movement means 20 needs to move the ceiling lid 9 laterally. The position giving the minimum distance from the ceiling surface is said to be as small as possible.
[0023]
The vertical vertical movement means 20 shown in the figure is appropriately disposed around the ceiling opening 8 and has four L-shaped vertical guide members 21, 21, 21, 21 whose upper end side is fixed to the top plate 2 and hangs down. The vertical guide member 21 includes an elevating frame body 23 that is slidably disposed via a roller 22 as a sliding body.
In FIG. 3, the two guide surfaces that contact each other at right angles in each vertical guide member 21 are respectively assigned with rollers 22, 22 projecting from the elevating frame body 23, so that the elevating frame body 23 is two-dimensional. The backlash of the direction is eliminated, and it is possible to move up and down smoothly without causing a positional shift.
[0024]
4 and 5, the vertical guide members 21 are each formed with a vertical range restriction slot 24 that defines a vertical range of the vertical frame 23 in the vertical direction. A pin 25 serving as a stopper member protruding from the lifting frame 23 is inserted into the range restricting long hole 24.
Further, in order to keep the elevating frame body 23 in a standby position above the vertical guide member 21, the elevating frame body 23 that is pulled up to the upper position of each vertical guide member 21 and is in a standby state on the outer surface of the top plate 2. A knob screw 26 as a fixing means for fixing is protruded. Accordingly, when the thumbscrew 26 is loosened in use, the ceiling lid 9 is dropped together with the lifting frame 23.
[0025]
According to the first embodiment, the vertical lid moving means 20 temporarily lowers the ceiling lid 9 of the lifting frame body 23 from the surface of the ceiling 5 while keeping the ceiling lid 9 in the horizontal state, and then horizontally The ceiling opening 8 can be largely opened by manually moving laterally along the ceiling surface by the direction moving means (30).
Therefore, since there is no need to lift the ceiling lid 9 as in the prior art, anyone can operate quickly and easily without the need for force.
In addition, as compared with the conventional case where the ceiling lid hangs down in one opening, the required working space below the ceiling surface can be made smaller and more compact, and the floor height to the lower end of the ceiling lid when opened is regulated. The above constraints can be fully met.
Further, the capacity and weight of the cab 1 can be made compact within a necessary range, and the manufacturing cost can be reduced.
[0026]
Embodiment 2. FIG.
The second embodiment is the same as the first embodiment except that the lifting frame body 23 during vertical movement, the horizontal movement means (30) mounted on the lifting frame body 23, and the horizontal movement means (30) are as follows. In order to alleviate the descent speed and impact of the mounted ceiling lid 9, the descent speed mitigating means 28 is provided in the vertical vertical movement means 20. This will be described with reference to FIG. FIG. 8 is an enlarged view of a main part of the apparatus.
The descent speed relaxation 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 is locked to the lifting frame 23. One end of the tension coil spring 28 may be locked to the vertical guide member 21 or the nearest appropriate place instead of the top plate 2. For example, the tension of the tension coil spring 28 is insufficient to support the loads of the lifting frame body 23 and the ceiling lid 9, and the lifting frame body 23 and the ceiling lid 9 extend to the end of the lowering.
Of course, the descent speed relaxation means 28 is not limited to this example, and an appropriate buffer means can be used.
[0027]
According to the second embodiment, since the spring as the descent speed mitigating means 28 is interposed between the vertical plate moving means 20 and the top plate 2 and the elevating frame body 23, The descent speed and impact of the frame body 23 and the horizontal movement means (30) and the ceiling lid 9 can be reduced, and the apparatus can be operated smoothly.
Further, even if the ceiling lid 9 is large and increased in weight so that the ceiling opening 8 is greatly opened, an unnecessary burden is not applied during vertical movement, that is, when the ceiling lid 9 is lowered. be able to.
[0028]
Embodiment 3 FIG.
In the third embodiment, the ceiling lid 9 of the horizontal direction moving means (30) attached to the lower part of the elevating frame body 23 of the vertical up-and-down direction moving means 20 in the first or second embodiment is predetermined from the ceiling surface. When the ceiling lid 9 is lowered to the lower position, that is, when it is lowered to a position where it can be moved laterally, the ceiling lid 9 is tilted in the tilt direction via the tilting means (40) for tilting the horizontal movement means (30) in a predetermined direction. It is configured to move laterally.
This will be described with reference to FIGS. 9 is an enlarged view of a main part for explaining the operation of the horizontal movement means, FIG. 10 is a cross-sectional view taken along the line EE of FIG. 9, and FIG. 11 is a cross-sectional view taken along the line FF of FIG.
[0029]
In FIG. 9, the tilting means shown in this example has a moving direction of the slide rail 30, and thus a lateral moving direction of the ceiling lid 9, when the slide rail 30 as the horizontal moving means is mounted on the lower part of the lifting frame body 23. The tilting center axis 40 is provided at a position perpendicular to the center of the slide rail 30 at a position where the center of gravity in the longitudinal direction of the slide rail 30 is removed, and the slide rail 30 can be tilted through the tilting center axis 40 in a vertical direction. It is configured to be pivotally attached to the lifting frame body 23 of the vertical movement means 20.
[0030]
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 supported by the sheath of the first-stage slide rail 31. In this state, the second slide rail 32 is also slid fully to the limit by being guided by the slide member.
In this way, the ceiling lid 9 is moved horizontally 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 the ceiling in which the ceiling lid 9 is an exit. It is necessary to be completely separated from the opening 8. Therefore, it is necessary to use a guide rail 30 having a sliding length corresponding to a required lateral movement distance.
[0031]
By configuring the tilting means (40) as described above, for example, the slide rail 30 can be swung and tilted in a predetermined direction with a light impact when the lifting frame body 23 is lowered (FIG. 9). At left). Depending on the tilt angle, the first stage slide rail 31 may be configured to slide out as it is following the tilting operation. Of course, in this case, the knob screw 35 is loosened in advance.
This inclination direction is naturally the direction on the gravity center side. Further, the inclination angle may not be an angle at which the slide rail 30 naturally slides out, but may be an angle at which the slide rail 30 smoothly slides by applying a light moderate force in the sliding direction, for example. In this case, after the slide rail 30 is lowered, the thumbscrew 35 is loosened and sent out manually.
In order to naturally slide out the slide rail 30 when it is lowered, it is necessary to loosen the thumbscrew 35 that is a locking means of the slide rail 30 in advance.
[0032]
According to this embodiment, the slide rail 30 as the horizontal movement means can be given an inclination when it is lowered, so that the first stage slide rail 31 starts to slide out and the ceiling lid 9 can be quickly and easily moved. It can be easily moved sideways.
[0033]
【The invention's effect】
According to the inventions of claims 1 to 8, any of them can be provided as a ceiling lid opening / closing device that can be opened / closed quickly and easily, in particular, as a ceiling opening / closing device for an elevator cab.
In addition, since the opening / closing operation range of the ceiling lid of the ceiling opening used as an emergency rescue exit / inspection port can be made compact, ceilings with restrictions such as narrow rooms such as elevator cabs and height restrictions on the floor It can be used as a lid opening / closing device.
In addition, since the ceiling lid moves vertically and vertically with respect to the ceiling surface, the gap between the ceiling lid and the opening edge of the ceiling opening can be minimized, thereby making 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 (look), such as being thinned.
[0034]
According to the second and sixth aspects of the present invention, since the descent speed and impact of the vertical movement member of the vertical movement member are alleviated by the descent speed mitigation means, the horizontal movement of the vertical movement member is provided. The descent speed and impact of the means and the ceiling lid provided in the horizontal movement means are alleviated, and the apparatus can be operated smoothly.
Moreover, even if the ceiling lid is large and increased in weight because the ceiling opening is greatly opened, unnecessary load is not applied during vertical movement, and the ceiling lid can be operated smoothly.
[0035]
According to the inventions of claim 3 and claim 4, since the horizontal movement means can be inclined in a predetermined direction when the horizontal movement means is lowered, the horizontal movement of the ceiling lid can be performed easily and quickly. Can do.
[Brief description of the drawings]
FIG. 1 is a plan view showing a first embodiment.
FIG. 2 is a cross-sectional view taken along line AA in FIG.
FIG. 3 is a cross-sectional view taken along line B-B in FIG.
FIG. 4 is a side view showing an elevating range restriction long hole and a stopper member.
FIG. 5 is a plan view showing an elevating range regulating long hole and a stopper member.
6 is a cross-sectional view taken along line C-1C in FIG.
7 is a cross-sectional view taken along the line DD in FIG. 2. FIG.
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.
10 is a cross-sectional view taken along the line EE of FIG.
11 is a cross-sectional view taken along line F-1F in FIG.
FIG. 12 is a plan view of a conventional device.
13 is a cross-sectional view taken along the line GG of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cage room, 2 Top plate, 3 Top plate opening part, 4 Outer plate cover, 5 Ceiling, 8 Ceiling opening part, 9 Ceiling cover, 20 Vertical vertical direction moving means, 21 Vertical guide member, 22 rollers, 23 Lifting frame body , 24 Elevating range restriction oblong hole, 25 Stopper member, 26 Thumb screw, 30 Horizontal moving means, 31 Slide rail main body, 31, 32, Child slide rail, 35 Knob screw, 40 Tilt center axis (tilting means).

Claims (8)

  A horizontal moving means that is mounted on the back side of the ceiling with a ceiling lid that closes the ceiling opening, and a vertical vertical movement that is disposed on the back side of the ceiling that moves the horizontal moving means to a position below the ceiling surface. A ceiling lid is moved down from the ceiling surface by the vertical vertical movement means, and then the ceiling lid is moved laterally by the horizontal movement means to open the ceiling opening. Lid opening / closing device.   2. The ceiling lid opening and closing device according to claim 1, wherein the vertical up-and-down moving means includes a descent speed mitigating means for mitigating the descent speed.   The horizontal direction moving means is pivotally attached to the vertical vertical direction moving means via a tilting central axis orthogonal to the moving direction, and can be inclined in a predetermined direction when lowered. Or the ceiling-cover opening-closing apparatus of Claim 2.   4. The ceiling lid opening and closing device according to claim 3, wherein the tilting central axis is provided by removing the position of the center of gravity of the horizontal moving means in the moving direction. The vertical up-and-down moving means includes a vertical guide member appropriately disposed around the ceiling opening, a lifting frame body disposed on the vertical guide member so as to be movable up and down via a roller, and perpendicular to the vertical guide member. The ceiling lid opening / closing device according to claim 1 , further comprising: an elevating range restriction long hole formed in a direction; and a stopper member inserted through the elevating range restriction long hole. The vertical up-and-down moving means includes a vertical guide member appropriately disposed around the ceiling opening, a lifting frame body disposed on the vertical guide member so as to be movable up and down via a roller, and perpendicular to the vertical guide member. An elevating range restriction long hole formed in a direction, and a stopper member inserted through the elevating range restriction long hole,
The ceiling lid opening and closing device according to claim 2, wherein the descending speed relaxation means is a spring that moderates the descending speed of the lifting frame. The ceiling cover opening and closing device according to any one of claims 1 to 6 , wherein the horizontal direction moving means is a slide rail slidably attached to a lower part of the vertical vertical direction moving means.   8. The slide rail has at least one child slide rail that slides out from the slide rail body, and a ceiling lid is attached to the child slide rail that is slid out at the earliest position. Ceiling lid opening and closing device.

Images