JPS5848469B2 - man conveyor steps - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an escalator or a passenger conveyor on an electric road, and particularly to a structure suitable for increasing the safety of the steps.

As is well known, passenger conveyors have been popular mainly in large-scale storefronts and superstores, but recently they have also begun to enter new fields such as station premises and pedestrian bridges.

As a result, the number of users has become extremely diverse, and it is necessary to take unprecedented safety measures when designing passenger conveyors.

The configuration of a conventional passenger conveyor is as shown in FIGS. 1 to 4.

That is, a large number of steps 1 are arranged in an endless manner and rotate, the handrail 2 synchronizes with the rotation, and the steps 1
It consists of a parapet 3, etc. that closes the space between the handrail 2 and the handrail 2, and the structure is such that the strength of all these is maintained by a sturdy main body frame 4.

The surface layer of step 1 (upper surface) and riser 1b (rear surface) have many irregularities, and the distance between each step 1 is as shown in FIGS. 2 and 3. They mesh with good precision.

To explain this in detail based on the diagram, there is generally a yellow plastic between the cleat 1a made of aluminum alloy (manufactured by Da-1 Cast) and the riser 1b, that is, the tip of the cleat 1a. The front end consists of IJ-11c
Further, the tip of the front end 1c is adapted to engage with the recess of the riser 1b'.

In addition, when Step 1 runs horizontally or in a stairway, the tip of the passenger's shoe may be drawn into the gap, so this front end Ku'JNc is painted in a cautionary color such as yellow to prevent passengers from moving. This is intended to prevent access.

This dangerous gap refers to gap g1 shown in Figure 3.
It is no exaggeration to say that the size of this gap g1 affects the safety of the passenger conveyor.

The conventional configuration of step 1 as described above has the following drawbacks, and a solution to these problems is desired.

That is, step 1 rotates between the handrails 3, which are fixed bodies connected to a driving chain (not shown), and there is a gap (fixed bodies) around step 1 for smooth running. contact prevention).

The gaps g1 and G shown in FIG. 5 to prevent contact with
It is normal to set the dimensions roughly to about 10 mm.

In this way, if the gap g1 is set to be severe in order to increase safety, a really troublesome gap g2 will occur on the other side.

This gap g2 is created to absorb manufacturing errors in the entire step 1, or, for example, to correct the elongation of the driving chain over time (the front end cleat 1c is moved forward to ensure the gap g1). ), and was unavoidable with conventional structures.

Here, the biggest problem with the existence of the gap g2 is that it becomes a deep gap, and conventionally, the thickness H (usually 15 to 20 mm) of the front end cleat 1c itself forms the gap g2. If coins K, etc. dropped by a passenger get stuck in them as shown in Figure 4, they may destroy the board 5 at the entrance/exit (Figure 1), or even cause the passenger to get caught in the direction of the arrow (Figure 4). This can lead to dangerous situations such as tripping and falling.

As described above, the drawbacks of conventional products are not only the damage to equipment, but also the risk of personal injury, and there is an urgent need to reduce the gap g2 in particular.

In view of this point, the present invention has been made in order to substantially reduce the gap between the cleat and the front end cleat, thereby increasing the safety of the passenger conveyor.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

The basic structure of the step in FIGS. 5 and 6 is the same as the conventional one, but in the present invention, a recess 6b provided in the front of the cleat 6a and a protrusion 6d provided in the front end cleat 6o are engaged with each other. The feature is that step 6 was adopted.

Here, the recess 6b is shaped like a groove with a width t1 and a height s1 in the front part of the cleat 6a, and has a width t2 (t1>t2).
), and a protrusion 6d with a height S2 (s1>82) is inserted, and the depth and protrusion amount are respectively to be fitted.

Even if the gap g2 is a few millimeters long as before, the depth is set so that it is actually very shallow h (approximately 1/5 to 1/10 of the conventional depth H). There is.

Note that this depth I] is set to the minimum dimension for forming the recess 6b in the cleat 6a, for example, about 0.5 to 2 mm.

Further, this front end cleat 6C is fixed by a screw 7, and there is a margin Y between the diameter of this screw 7 and the hole diameter.
It is possible to move forward or backward by the amount of .

However, this margin is not necessarily necessary as long as the convex portion can engage with the concave portion.

By doing this, the gap g that was previously considered harmful
2 is significantly reduced, and the problems shown in FIG. 4 are almost eliminated.

According to the present invention described above, there is an advantage that the safety of steps is significantly improved.

Note that the present invention is not limited to the illustrated example, and may be applied to, for example, the one shown in FIG. 7.

This is done by forming a cleat 8, which corresponds to the cleat 6a in FIG. The structure is such that they are engaged with each other.

This method has the advantage that if the corrugated plate can be formed with high precision, the recessed portion 6b shown in FIG. 5 is not required, so that it can be manufactured at the lowest cost.

[Brief explanation of drawings]

Figure 1 is a side view of the upper part of a conventional passenger conveyor;
The figure is an enlarged perspective view of part A in Figure 1, Figure 3 is a cross-sectional view taken along line I-■ in Figure 2, Figure 4 is a cross-sectional view showing a local part of Figure 3, and Figure 5 is FIG. 6 is an enlarged perspective view of the main part of FIG. 5, and FIG. 7 is a cross-sectional view corresponding to the conventional FIG. 3, showing an embodiment of the present invention. FIG. 6...Step, 6,8...Cleat, 6b,z...Concave portion, 6o...Front end cleat, 6d...Protrusion .

Claims (1)

[Claims] 1. A man conveyor that rotates and is arranged in an endless manner, and is composed of a cleat, a front end cleat disposed at the tip of the cleat, and a riser extending downward from the rear end of the cleat. In the step, a concave portion is formed at the front end of the cleat, and a convex portion is formed on the front end cleat to engage with a concave portion provided at the front end of the cleat. A step of a passenger conveyor, characterized in that the step of the passenger conveyor is configured to reduce the depth of the gap between the cleat and the front end of the cleat. 2. Claim 1, wherein the cleat is a corrugated thin plate, the corrugated plate forms a hollow recess, and the protrusion of the tip cleat is engaged with the recess.
Man conveyor steps as described in section.