JPS598512B2 - Escalator or moving walkway handrail belt removal tool - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a tool used to remove an escalator or moving walkway handrail belt from a handrail guide rail.

Generally, in an escalator 1 as shown in FIG.
When adjusting and maintaining the handrail belt 2 drive device (not shown) after installation, and when repairing and replacing the handrail belt 2,
It was necessary to remove the handrail belt 2.

Conventionally, the handrail belt 2 can be removed from the state shown in FIG. 2 by forcibly expanding the jaws 2a or 2b of the belt 2 outward by hand to separate it from the deck board 30 and the handrail guide rail 4, or as shown in FIG. As shown in the handrail Benoret 2
This was done by forcing a screwdriver 5 into the gap G between the jaws 2a or 2b and the deck board 3 to widen the handrail belt 2.

However, in order to prevent the handrail belt 2 from easily coming off the handrail guide rail 4 during operation, the jaws 2a or 2b of the belt 2 must be expanded outward by less than 10 mm. It is a form that cannot be separated from 4, and in order to do so, 30 to 4
It has a structure that requires approximately 0 to 100% force and is extremely difficult to remove.

Therefore, as mentioned above, it is very difficult and almost impossible to spread it out by hand, and if you try to pry it open with a screwdriver 5, you will not only damage the deck board 3 but also the handrail belt 2, and as a result, the handrail will be damaged. There are problems in that the belt 2 may break, resulting in a significantly shortened service life and a decrease in product value.

Note that, although not shown, the handrail belt on a moving walkway is exactly the same as the handrail belt 2 of the escalator 1 described above, and has the same problem.

This invention was made in view of the above circumstances, and its purpose is to be extremely practical and to allow the handrail belts of escalators or moving walkways to be removed very easily and reliably without damaging the belts, deck boards, etc. There is an attempt to provide a simple and convenient tool.

An embodiment of the present invention will be described below with reference to FIGS. 4 to 7.

6 in the figure shows a removal tool of the present invention, which has a structure in which a tool body 7 is provided at the tip of a handle 8, and the tool body 7 is formed by bending a steel plate or the like to form a substantially C-shaped cross section 7a. and a rising plate portion 1b bent upward from the upper end of the C-shaped opening.

The C-shaped cross section 7a has an inner radius R that is almost the same as or slightly thicker than the radius γ of the outer peripheral surface on one side of the handrail belt 2, as shown in FIG. It is now possible to inscribe nihoy.

In addition, a protective material 9 such as a rubber plate is provided on the entire inside of the C-shaped cross section 7a to prevent damage to the surface of the handrail belt 20.
is attached by gluing etc.

Further, a small protrusion 10 is integrally formed on the lower edge of the C-shaped opening of the C-shaped cross section 7a toward the radial center by means such as can bending, and is attached to the jaw portion 2a of the handrail belt 2 as shown in FIG. It's starting to hit.

Furthermore, the handle 8 is removably attached by screwing the distal end threaded portion 8a into a mounting member 11 with a screw hole 11a fixed to the upright plate portion 7b of the tool body 7.

To explain how to remove the handrail belt 2 from the handrail guide rail 4 of the deck board 3 using the tool 6 described above, first, as shown in FIG. Place the cross section 7a inwardly, and in this state, use your hand to push down the handle 8 extending upward in the direction of the arrow.

With this, the C-shaped cross section 7a of the tool body 7 is attached to the handrail belt 2.
While gripping one side of the outer circumferential surface of the handrail belt 2, rotate the jaw part 2a of the rail belt 2 so as to pull it upward from the lower side of the rail 4 as shown in FIG. 4, and thereafter it becomes possible to remove the entire handrail belt 2 by shifting the tool in the longitudinal direction of the handrail belt 2.

At this time, the best place to apply the tool 6 to the handrail belt 2 is the downward curved part indicated by X if the escalator 1 is as shown in FIG. 1, and it can be removed most easily.

In addition, in the tool 6, the protective material 9 is provided inside the C-shaped section 7a of the tool body 70 that contacts the surface of the handrail belt 2, so that the surface of the belt 2 is completely prevented from being damaged during the removal work of the handrail belt 2. It disappears.

Incidentally, even if the protective material 9 is not provided, the method of the present invention causes much less damage to the handrail vent 2 than when using the conventional screwdriver 5.
It won't hurt anything at all.

Furthermore, by providing a small protrusion 10 at the lower end of the opening of the C-shaped section 7a of the tool body γ, the outer circumference of one side of the handrail belt 20 can be gripped by the C-shaped section γa as shown in FIGS. 6 and T. At this time, the small protrusions 10 come into contact with the jaws 2a of the belt 2, thereby further increasing the gripping ability and making it easier to remove.

The width L of the tool body 7 (see Figure 4) is optimally about 50 mm from the viewpoint of effective application of force during belt removal operation and convenience of carrying, but it can be set to any width. is possible, and the small protrusion 10 may also be provided with the same width L of the tool body 7.

Furthermore, in addition to setting the width L of the tool body 7 as described above, since the elongated handle 8 is removable from the tool body 7,
It is possible to make it compact and convenient to carry without adding bulk.

Since this invention has been made as detailed above, it is very practical and simple, allowing the handrail belt of an escalator or moving walkway to be removed from the handrail guide rail very easily and reliably without damaging the handrail, deck board, etc. becomes.

[Brief explanation of the drawing]

Figure 1 is an overall schematic diagram of the escalator, Figure 2 is a cross-sectional view of the escalator's handrail belt and handrail guide rail portion of the deck board, and Figure 3 is a cross-sectional view showing the case where the handrail benont of the same part is removed using a conventional screwdriver. Perspective view, 4th
The figure is an exploded perspective view of a tool showing an embodiment of the present invention.
This figure is a side view of the same assembly state, and FIGS. 6 and 7 are usage state diagrams showing states in which the handrail belt is removed using the same tool. 1... Escalator, 2... Handrail belt, 2a, 2b... Chin part, 3...
Deck board, 4...handrail guide rail, 5
......Driver 1% 6...Removal tool, 7...Tool body, 7a...C-shaped cross section, 7b...Rising plate Part, 8...Handle, 8a...Thread part, 9...Protective material, 1
0...Small protrusion, 11...Mounting member, 1
1a...Screw hole, R...Inner diameter of C-shaped cross section, γ...Outer diameter of handrail belt side surface, L...
...Tool body width, X...Belt curved part.

Claims (1)

[Scope of Claims] 1. A C-shaped cross-section having an inner radius that is substantially inscribed in one side of the outer peripheral surface of the handrail belt, a rising plate bent upward from the upper end of the C-shaped cross-section, and a lower part of the C-shaped cross-section. A handrail belt removal tool for an escalator or moving walkway, comprising a tool body having a small protrusion bent inward on the side edge, and a handle erected by being connected to the upper end of a rising plate part of the tool body. 2. The handrail belt removal tool for an escalator or moving walkway according to claim 1, wherein the tool body has a protective material for preventing damage to the handrail belt surface on the inner surface of the C-shaped cross section. 3. Handrail belt removal for an escalator or moving walkway according to claim 1 or 2, characterized in that the tool body has a mounting member at the upper end of the rising portion to which the tip of the handle can be detachably connected. tool.