JPS5957880A - Step of 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 This invention relates primarily to passenger conveyor steps used in curved escalators.

A curved escalator is known that has a conveyance path in which the intermediate portion between both horizontal ends is inclined in the vertical direction and the horizontal projection plane is curved. In such an escalator, the steps move in three dimensions in the middle of the conveyance path, and the step guide rails also have a three-dimensionally curved shape. For this reason, it is difficult to manufacture guide rails etc. with precision, and the sides of the tread cleat of a step and the riser cleat of an adjacent step may come into contact with each other, or the tips of these cleats may touch the bottom of the groove between the other cleats. This can cause vibrations and noise while running, and this is especially noticeable on the bottom surface of the vehicle as the steps move from horizontal to staircase-like or vice versa. There were drawbacks.

By providing a cleat contact prevention roller, this invention prevents the tread IJ-to from coming into contact with the riser cleat of the adjacent step even if the precision of parts such as the guide rail is reduced to a level that is easy to manufacture. It is an object of the present invention to provide a step-up method that can eliminate the above-mentioned drawbacks, prevent accidents, and extend the life of the passenger conveyor.

An embodiment of the present invention will be described below with reference to the drawings.

In Figures 1 to 3, 1 is the main frame of the curved escalator;
2 is a conveyance path provided on the main frame 1 and curved in the horizontal projection plane; 3 is a railing erected on both sides of the conveyor path 2 along the longitudinal direction thereof; and 4 is supported by the balustrade 3. A moving handrail 5 is a step configuring the conveyance path 2, and step 5
are driven by a drive machine (not shown) by the left and right step chains 6, and the moving handrail 4 is also driven in synchronization with the step 5.

The above step 5 is as shown in FIGS. 3 to 5.
A Stella frame 8 is provided on the back side of the tread T on which the tread IJ-7a is formed on the top surface, and this frame 8
One end in the longitudinal direction is pivotally connected to the left and right step chain 6 by a step shaft 9, and a step roller 10 provided on the step shaft 9 and a step roller 11 pivotally connected to the other end of the step frame 8 are connected to guide rails 12 and 13. A riser 14 having a riser cleat 14a formed on its surface is provided at the end of the tread T on the side opposite to the step shaft 9. It is arranged. Also, step frame 8
A vertical side roller 15 is supported by a guide rail 16 and is attached to the step frame 8 and protrudes from the left side surface in FIG. In addition, the above rail 1
2, 13 and 16 are fixed to the main frame 1, respectively. Then, as shown in Fig. 6, the tread plate IJ-door a protrudes every other door from one end of the tread plate T, and is fitted with a gap in the width direction between the adjacent steps 5') -) 14 a. Let's get together! J-) A gap in the front-rear direction is formed between the groove bottoms 14b, 7b between the tips of the 7a, 14a and the mating cleat. As shown in FIGS. 3 to 5 and 7, a bracket 1B is fixed to one end of the step frame 8 with a screw 1T, and a cleat contact prevention row 219 protruding from one end of the step board I is attached to the bracket 18. A cleat contact prevention roller 19 is pivotally attached to the tip of the step 5 with a horizontal shaft 20, and is fitted between the two isa cleats 14a of the adjacent steps 5 in place of one of the treadle cleats 7a. Then, as shown in Figure 7, step on the board! J - Thickness of riser cleat 14a of door a and adjacent step 5 (step width direction dimension) tt, cleat contact prevention row 219
When the thickness of is T, T>t, both 'J −)
The gap in the step width direction between 7a and 14a is A1
When the gap in the width direction between the cleat contact prevention row 219 and the riser cleat 14a is C, C<A, and the cleat T
The groove bottom 14b between the tip of the cleat 14a and the cleat 14a and the gap in the groove bottom 7b between the tip of the cleat 14a and the cleat 14a are respectively B1 and the outer peripheral surface of the contact prevention row 219 is taken. When the gap between the groove bottoms 14b between the grooves 14a and 14b is D, the relationship is D x B.

Step 5 of the curved escalator configured as above
When the step chain 6 is driven, the step roller 1f is moved horizontally from one end to the lower surface, through the middle portion where the horizontal projection surface is curved in an arc shape, and through the lower or upper curved portion to the other horizontal end. , 11 roll on the guide rails 12, 13, and the side rollers 15 roll on the guide rails 16, while the rails 12, 1. -5, 16 to guide you. During this movement, especially when the two adjacent steps on the upper and lower surfaces are relatively displaced from horizontal to stepped or vice versa, the side surface of the part of the tread plate (Cree) 7a of step 5 protruding from one end of the tread T and riser cleat 1 of adjacent step 5
4a tries to contact, the cleat contact prevention roller 1
9 comes into contact with the riser cleat h14a, the contact prevention row 219 rotates, and the tip of the treadle cleat 7a or riser cleat 14a comes into contact with the groove bottom 14b between the opposing cleats. When the cleat contact prevention roller 19 tries to contact T'o, the outer peripheral surface of the cleat contact prevention roller 19
The contact prevention roller 19 rotates by contacting the groove bottom 14b between the grooves 148. Therefore, 7 g
Since the groove bottoms 14b and γb do not come into contact with the sides of the riser cleat 14a and their tips, vibration and noise are prevented, and adjacent steps can be run while maintaining the normal relative position between the cleats.

Further, the meshing between the demacom and the riser becomes normal, and an accident in which the passenger's footwear or the like is caught in the gap between the riser and the treadle due to the meshing being disengaged is prevented, resulting in safety.

Furthermore, even if the relative position of two adjacent steps deteriorates due to wear of the rails and step chains over time, the relative position can be corrected by providing a cleat contact prevention roller, so the passenger conveyor It can extend the lifespan.

In addition, in this invention, the cleat contact prevention opening-ra is
It is preferable that they are made of metal or hard synthetic resin, and two of them can be placed on one step with an interval in the width direction! J) Tip of 7a+14a and groove bottom 14b
, 7b can be substantially eliminated. Furthermore, if the groove between the riser cleats has a colored finish such as paint, installing cleat contact prevention rollers on both side edges of the step will make it less noticeable if the finish peels off or wears out. You can improve your appearance.

The above explanation has been made regarding the case where it is applied to this decoy full curve escalator, but this invention can also be applied to straight escalators and moving walkways, etc., and the existing straight escalators have been used for more than 20 years and their parts have worn out. If the cleat of a step comes into contact with that of an adjacent step, the cleat contact can be prevented by additionally installing a cleat contact prevention roller as in the above embodiment, so it can be disposed of. By doing this, you can extend the life of straight escalators that have been used for many years.

As explained above, the step of the passenger conveyor according to the present invention is equipped with a cleat contact prevention roller that fits between the riser cleats with a gap smaller than the gap between the tread cleat and the riser cleat of the adjacent step. , steps, and other parts f: Prevent contact between the tread cleat and the riser cleat of an adjacent step, or contact between the tip of the cleat and the groove bottom of the opposing cleat, even if the precision is reduced to the extent that manufacturing is easy. This allows the steps to run smoothly without generating vibration or noise, and improves safety by preventing accidents such as passengers' footwear being caught in the conveyor, and also extends the life of the passenger conveyor. The effect is that you can do it.

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view showing a passenger conveyor equipped with steps according to an embodiment of the present invention, FIG. 2 is a schematic front view of the same, and FIG.
The figure is an enlarged sectional view taken along the I-1 line in Figure 2, and Figure 4 is the ■■ in Figure 1.
Fig. 5 is a side view taken along the v-v line in Fig. 4, Fig. 6 is an enlarged view of part ■ in Fig. 4, and Fig. 7 is an enlarged view of part ■-■ in Fig. 5.
FIG. 3 is a purely enlarged partial cross-sectional view. 5... Step, 7... Treadboard, 7a... Treadboard cleat, 7b... Groove bottom, 8... Step frame, 1
4...Riser, 14a...Riser cleat, 14b
... Groove bottom, 18... Bracket, 19... Cleat contact roller. Note that the same parts in the figures are indicated by the same reference numerals. Agent Shin Kuzuno - (and 1 other person) 4 zusai 7 zusai 6 (21

Claims (1)

[Claims] A step for a passenger conveyor characterized by comprising a cleat contact prevention roller that fits between the riser cleats in a gap smaller than the gap between the tread cleats and the riser cleats of the adjacent step.