JPH04201979A - Footboard for passenger conveyor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a tread for a passenger conveyor moving on a horizontal path or a ramp.

[Conventional technology]

Generally speaking, the width of the treads of the passenger conveyor is such that it can be used by two people in a row. However, recently, wider types have appeared that can be used by two people side by side. This wide type of treadle is mainly installed in places such as airports and stations where there are many passengers carrying large luggage. As the tread becomes wider, the center of the tread may sink due to heavy loads such as large items. A rail is added to the center of the passenger conveyor body frame along the entire length. An example of a related passenger conveyor of this type is JP-A-1-133887.

[Problems to be Solved by the Invention] ``The above prior art does not take into consideration the simplification of the structure within the main body frame of the passenger conveyor, and the structure within the main body frame becomes complicated due to the installation of the support rail. This made maintenance and inspection work inside the body frame troublesome.

SUMMARY OF THE INVENTION An object of the present invention is to provide a footboard for a passenger conveyor that can suppress subsidence in the center by itself.

[Means for Solving the Problems] In order to achieve the above object, the present invention connects a support frame that supports a tread member having a cleat to a pair of frames having a U-shaped cross section, and to the ends of the pair of frames. The front and rear beams have a U-shaped cross section, and are formed into a square shape with the U-shaped opening facing sideways, and the frame and the beam are connected by the two legs having a U-shaped cross section. This is how it was done.

[Operation] According to the above configuration, when a load is applied to the treadle, the front and rear end beams tend to displace downward, and the lower portions of both end frames tend to expand outward. Therefore, by adopting this structure, by fixing both legs with a U-shaped cross section, the downward displacement of the front and rear end beams is reduced as much as possible, and the downward and outward expansion of both end frames is restrained. be able to. As a result, the overall rigidity of the front and rear ends can be fully utilized, and the rigidity of the entire frame is increased, so that the amount of deformation for a wide pallet can be reduced.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 4.

The structure of the tread 1 is a tread member 2 consisting of a cleat 2a having an uneven portion on the surface of the tread and a cleat base 2b that supports the cleat 2a.
and a support frame 3 for supporting the tread member 2. The support frame 3 has a front end beam 3a as shown in FIG.
, intermediate beam 3b.

It is composed of a rear end beam 3c and a pair of side end frames 4 that support the rear end beam 3c on both end sides of each beam. The front end beam 3a, the rear end beam 3c, and the pair of side end frames 4 are each formed to have a U-shaped cross section, and are arranged so that the U-shaped open portions are oriented laterally. The front end beam 3a, the rear end beam 3c, and the pair of side end frames 4 are connected by bolts 5, respectively, at the upper parts of the U-shaped cross sections.
The lower legs, each having a U-shaped cross section, are fixed at one place with a bolt 5. Due to the connection of the upper and lower legs of the support frame 3, which have a U-shaped cross section, when the beam receives a load F, the beam tends to deform downward as shown by the broken line. Since each section is restrained, the amount of deformation of the beam can be minimized.

According to this embodiment, since the amount of deformation of the support frame 3 with respect to the load is minimized, there is an effect of suppressing the sinking of the treadle 1, and a safe treadle for a passenger conveyor can be provided.

〔Effect of the invention〕

According to the present invention, sinking of the treadboard due to a large load can be suppressed only by the support frame of the treadboard.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the tread of a passenger conveyor according to the present invention, FIG. 2 is a perspective view of the support frame of the tread, FIG. 3 is a sectional view taken along the line Figure 4 is IV of Figure 2.
It is a sectional view along the -IV line. 3a... Front end beam, 3b... Intermediate beam, 3C.
... Rear end beam, 4 ... Side end frame, 5 ... Tightening bolt. 3rd day

Claims (1)

[Scope of Claims] 1. A tread comprising a tread member having a cleat with a plurality of unevenness formed on its surface along the direction of travel, and a support frame for supporting the tread member, comprising: a double-sided end frame having a U-shape in cross section; and the front end and rear end beams each having a U-shaped cross section, with the opening portions having a U-shaped cross section facing inside, so that the support frame is configured in a square shape, and
A treadle for a passenger conveyor, characterized in that both legs of the both side end frames having a U-shaped cross section and both legs of the front and rear end beams having a U-shaped cross section are respectively connected to each other.