JPH07102789A - Safety fence for escalator manhole - Google Patents

Abstract

PURPOSE:To enhance the workability of workers and reduce their working hours and eliminate inadequate facilities. CONSTITUTION:A hollow base post 2 is vertically installed at two sites located under the floor of an entrance in a machine room 1. A post 3 is removably inserted into the base post 2 and arranged not to go out of the machine room 1 as long as it is housed in the hollow base post 2. A movable fence 4, which rolls on the post 3 as a support shaft, is mounted to the post 3. The movable fence 4 is foldable in structure by connecting a plurality of fences with hinges 8. When a safety fence is housed in the machine room 1, a hook 9 is removed and the movable fence 4 is folded and a lock hardware 6 is released, thereby inserting the post 2 into the hollow base post 2. This construction makes it possible to house the whole safety fence in the machine room 1 and prevent the fence from sticking outside and house the fence compactly under the floor of the entrance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an escalator manhole safety fence for preventing intrusion of a third person when inspecting a machine room located under the floor of an escalator entrance / exit.

[0002]

2. Description of the Related Art FIG. 7 is a perspective view showing the structure of a conventional escalator manhole safety fence. In the figure, 1 is a machine room located under the floor 12 of the entrance / exit, and 10 is a machine room 1
The manhole, which is the opening of 11, is a safety fence having a conventional configuration. This safety fence is a portable safety fence,
At the time of maintenance and inspection work, carry a safety fence 11 installed around the manhole 10 in the machine room 1 and place it on the surface of the floor 12 to ensure the safety of workers and prevent the entry of third parties. To prevent.

As described above, in the conventional escalator manhole safety fence, a plurality of safety fences 11 are carried by hand from other storage locations and installed at the work location every maintenance and inspection work. However, since carrying and installing the safety fence 11 is inconvenient, an improved technique is disclosed in Japanese Utility Model Laid-Open No. 62-47589 in order to alleviate the inconvenience. In this publication, a device for using the entrance cover for covering the machine room 1 also as a safety fence, that is, the machine room 1
An alternative type of device is disclosed in which the entrance / exit cover that covers the vehicle is removed and is installed upright in the vicinity of the cover to form a part of a safety fence.

[0004]

However, since the conventional portable safety fence 11 has a heavy entrance / exit cover,
There was a problem in that work was difficult when the erecting was done. Further, even in this alternative type safety fence 11, since it is necessary to transport and store the assembled members, the conventional problem of requiring a storage location and transportation time has not been solved yet.

The present invention has been made in view of the above problems, and an object thereof is an escalator manhole safety system capable of improving the workability of a worker, shortening the time, and eliminating the installation defect. To provide a fence.

[0006]

In order to solve the above problems, the escalator manhole safety fence according to the present invention has a workability as a drawer type safety fence that is drawn out from the machine room manhole to surround the periphery. It is characterized by improving.

That is, in the escalator manhole safety fence according to the invention of claim 1, the escalator manhole for preventing the intrusion of a third person at the time of inspecting the machine room located under the floor of the escalator entrance / exit A safety fence, which is a hollow base pillar standingly arranged at least at two places in the machine room, a pillar which is inserted into and retained by each of these hollow base pillars, and the pillar is attached to the pillar. A swivel fence that is rotatably attached as a spindle,
A stopper that holds the pulled-out state of the support column, and the rotary fence is pulled out from under the floor to form a safety fence during use.

Further, in the escalator manhole safety fence according to a second aspect, in the escalator manhole safety fence according to the first aspect, the rotating fence is extendable in the longitudinal direction thereof.

[0009]

The rotating fence of the escalator manhole safety fence of the present invention having the above-mentioned structure is usually stored under the floor (machine room) of the escalator entrance / exit. Then, at the time of maintenance and inspection of the machine room, the swing fence is pulled out from under the floor to form a safety fence, and intrusion of a third person is prevented.

Therefore, according to the escalator manhole safety fence of the present invention, it is not necessary to carry the safety fence from the storage place every time the maintenance and inspection are performed. In this way, by providing the manhole safety fence provided in the machine room, the workability of the worker can be improved and the time can be shortened, and the installation defect can be eliminated.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings.

First Embodiment The configuration of the first embodiment of the present invention will be described with reference to FIGS. 1, 2 and 3.

FIG. 1 is a front perspective view of the escalator manhole safety fence according to the first embodiment, and FIG. 2 is a plan view (a) showing a state in which the rotary fence 4 of FIG. It is (b). Further, FIG. 3 is a front sectional view showing a state in which the rotary fence 4 of FIG. 2 is pulled out to the upper part.

As shown in FIGS. 1 to 3, in the escalator manhole safety fence according to the first embodiment, hollow base columns 2 are erected at two places inside a machine room 1 located under the floor of the entrance / exit. are doing. The column 3 is inserted into the hollow base 2 so that it can be pulled out, and does not protrude outside the machine room 1 when it is housed in the hollow base 2. A swivel fence 4 that swivels around the strut 3 is attached to the strut 3. In the embodiment, the swing fence 4 is rotatably attached to the pillar 3 by the support 5 at the upper end of the pillar 3. Further, the hollow base 2 is provided with a lock tool 6 so that the pillar 3 is held in a pulled-out state. On the other hand, the rotating fence 4 is configured to be foldable by connecting a plurality of fence bodies with a hinge 8 (FIG. 2). The stopper 9 connects the opened swinging fences 4 to each other and holds the state (FIG. 1). The manhole 10 is a portion that becomes an opening of the machine room 1, and its width is set according to the type of escalator or the like.

In the escalator manhole safety fence according to this embodiment, when the escalator manhole is stored in the machine room 1, the stopper plate 9 is removed and the rotating fence 4 is folded. And the lock tool 6
Is released and the column 3 is inserted into the hollow base 2. The pedestal 7 supports the pivoting rail 4 in the housed state (FIG. 2). In this way, the escalator manhole safety fence can be stored in the machine room 1 as a whole, and can be compactly stored under the floor of the entrance / exit without protruding to the outside.

When installing the escalator manhole safety fence according to this embodiment, first, the manhole 1 in the machine room 1 is installed.
Open 0, pull out the swinging fence 4 in the stored state to the upper part, and lock it with the lock 6 (FIG. 3). Next, as shown in FIG. 3 (one-dot chain line), the swing fence 4 is opened in a double-door manner. In this way, as shown in FIG. 4 (one-dot chain line), the rotating fence 4 rotates about the support column 3 as a supporting shaft, and the plurality of fence bodies connected by the hinges 8 are opened to rotate the fence. The moving fence 4 can be brought to the open state (positions of a, b, c and d indicated by the chain double-dashed line in FIG. 4). The swivel fence 4 is opened, placed on the surface of the floor 12 at that position, and stabilized by the stopper 9. In such a state, the area around the manhole 10 is L
Surrounded by the mold, it is possible to prevent a third party other than the worker from entering the manhole 10, and the inspection work or the like can be performed in this state.

After the work is completed, the swing fence 4 is folded and stored in the reverse order of the above installation order. That is, the swing fence 4
Is folded by interlocking with a hinge (Fig. 2 (A)), then the locking tool 6 is loosened, the swinging fence 4 is lowered, and the pedestal 7 is stored.

Second Embodiment In the first embodiment of the present invention, the rotary fence 4 is of a frame type and has a fixed shape, and is folded and stored. The safety fence of the first embodiment is suitable when the manhole 10 is wide, but is not very suitable when the manhole 10 is narrow. However, the safety fence according to the second embodiment of the present invention described below is a safety fence applicable when the manhole 10 is narrow.

The characteristic feature of this second embodiment is that
As shown in FIGS. 5 and 6, an expandable / contractible swing fence 13 is adopted, and by shrinking the swing fence 13, it can be housed in a narrow manhole.

FIG. 5 is a perspective view showing the overall structure of a retractable safety fence according to the second embodiment. In the figure, a telescopic swing fence 13 is composed of a support leg 14 and a telescopic member 15. The same members and the same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

FIG. 6 is a front sectional view showing a state in which the rotary fence 13 corresponding to FIG. 5 is housed in the machine room 1. This Figure 6
As shown in FIG. 2, according to the second embodiment, when the manhole 10 having a narrow width is provided, both the left and right support legs 14 are provided.
If you pull the outside of the box, it can be expanded and contracted according to the width of each, and can be stored completely.

In this way, according to any of the present embodiments of the present invention, a safety fence can be installed without carrying in an intrusion prevention fence or the like.

[0023]

As described above, according to the present invention, since the rotary fence can be folded and stored in the machine room, the storage place of the safety fence becomes unnecessary and the storage place can be moved from the storage place to the installation place. It has the advantage that it does not need to be carried. In addition, since it is provided at each work location, installation deficiencies are eliminated, conventional transportation means and the time required for them are shortened, and overall workability is improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing the configuration of a first embodiment of an escalator manhole safety fence according to the present invention.

FIG. 2 is a plan view (a) and a front sectional view (b) showing a storage state of the safety fence in FIG.

FIG. 3 is a front sectional view showing a state where the safety fence of FIG. 2 is pulled out.

FIG. 4 is an explanatory diagram showing a state in which the safety fence of FIG. 1 is installed on the floor surface.

FIG. 5 is a perspective view showing a configuration of a second embodiment of the escalator manhole safety fence according to the present invention.

FIG. 6 is a front sectional view showing a stored state of the safety fence in FIG.

FIG. 7 is a diagram showing a configuration of a conventional escalator manhole safety fence.

[Explanation of symbols] 1 Machine room 2 Hollow base pillar 3 Pillar 4 Swing rail 5 Support 6 Locking tool 7 Cradle 8 Hinge 9 Clasp 10 Manhole 11 Carrying safety fence 13 Telescopic swing fence 14 Support leg 15 Stretching Element

Claims (2)

[Claims] 1. An escalator manhole safety fence for preventing intrusion of a third party when inspecting a machine room located under the floor of an escalator entrance / exit, which is erected in at least two places in the machine room. Hollow base pillars, pillars that are inserted into and held by these hollow base pillars, respectively, swing bars that are rotatably attached to the pillars with the pillars as pivots, and the pillars. An escalator manhole safety fence, including a stopper that holds the pulled-out state, and a safety fence formed by pulling out the rotating fence from the floor under use when used. 2. The escalator manhole safety fence according to claim 1, wherein the rotating fence is extendable and retractable in a longitudinal direction thereof.