JPS61183081A - Handrail for man 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 [Field of Application of the Invention] The present invention relates to a balustrade for a passenger conveyor such as an escalator or an auto line, and particularly to a balustrade structure suitable for sliding one handrail.

[Background of the invention]

The drive and guide structure of the handrail in a conventional passenger conveyor is as shown in FIGS. 5 to 8, and the main part of this structure is illustrated in Japanese Patent Publication No. 58-44599. In general, the handrail 1 of a passenger conveyor is guided by a handrail frame 2 at the outgoing portion that is grabbed by the passenger n1.
It has a structure that slides on the periphery of the parapet 3. On the return journey, the n1 handrail drive device 5 is supported by the guide row 24.
Driven by clamping force and frictional force.

A large number of rollers 6 are arranged at the bending part ■ (self radius R) where the handrail 1 reverses at the terminal part of the handrail 3, helping the handrail 1 to run smoothly and rolling the pieces v and b of the handrail 1. A guide 7 for preventing this is fixed with a bolt 8.

The drive and guide structure of the handrail is used in ordinary passenger conveyors, but recently it has been used extensively in urban transportation-related passenger conveyors with a high lifting height H (Fig. 5). It has been pointed out that there are problems with bending and running resistance of 1, causing the vehicle to slip or stop. The main cause of this problem is that as the lift height H increases, the sliding length of the handrail 1 increases, increasing the driving load on the handrail drive device s. Improvements in the structure of the terminal reversal section, which has the highest bending resistance, is desired. In particular, since the bending resistance is caused by the handrail 1 being guided unevenly by the rollers 6 disposed in spots, there is an urgent need to improve this part.

[Purpose of the invention]

An object of the present invention is to provide a balustrade that is ideal for handrail sliding around a substantially semicircular portion of the balustrade terminal.

[Summary of the invention]

The present invention aims to reduce the bending resistance and running resistance of the handrail. In particular, the bending resistance and running resistance of the handrail at the terminal part of the handrail are large, and the slippage of the handrail that frequently occurred in the past is also caused by this. Many things were the cause.

In the present invention, apart from the handrail drive unit, a pulley that rotates freely as the handrail runs is installed in the balustrade terminal part, thereby minimizing the bending resistance and running resistance of the handrail, and the balustrade terminal part. The feature is that the upper edge of the handrail frame is bent outward, and a guide made of a polymeric material is attached to this bent portion for guiding the handrail.

[Embodiments of the invention]

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

In the present invention, a bearing 12 is fastened with a bolt 16 to a frame 13 built in the handrail terminal section, and a guide is attached to the bearing 12, which rotates freely as the handrail 1 travels, for guiding the handrail 1. The handrail frame 2a is provided with a protrusion 14 protruding outward from the upper edge thereof, and the protrusion 14 has the following features:
Nine guides 15 made of a polymeric material are installed to guide the handrail 1.

Since the pulley 11 needs to rotate in synchronization with the running of the handrail 1, it is preferable that the friction coefficient of the contact surface between the pulley 11 and the handrail 1 is large. If you attach parts with a high friction coefficient, such as a rubber ring, to the outer periphery, the effect will be even better.

The guide 15 made of a polymeric material is for suppressing the movement of the handrail 1 in the C direction, the b direction, and the C direction, and in this embodiment, the guide 15 is made of a polymeric material and is provided continuously around a substantially semicircumferential portion of the handrail terminal portion. A step with a dimensional difference g is provided between the outer peripheral surface of the pulley 11 and the upper surface of the guide 15. The reason is that although the guide 15 made of polymer material has a low coefficient of friction,
If the outer circumferential surface of the pulley 11 is lower than the upper surface of the guide 15, rather than the ratio of the rotational friction coefficient of the pulley 11 connected to the bearing, there will be no advantage, and on the contrary, it will harm the running of the handrail. This is because it can be considered. The guide 15 is most easily formed by extrusion K.
As shown in Fig. 2, the storage space 1 is very narrow, and the cross-sectional area and wall thickness of the guide 15 are limited, making it difficult to fasten the guide itself with countersunk screws. As shown in Figure 4, a cut groove is provided in the protrusion 14 on the upper edge of the 1/tray A/7 v-m 2a, and using this groove, a separate piece of guide 20 is fitted into the 4 parts. guide 20
The guide 15 is prevented from moving in the longitudinal direction by using a hole provided in the guide 15 to stop the guide 15 in the longitudinal direction.

As described above, in the present invention, since the pulley 11 idles as the handrail 1 rotates, the bending resistance and running resistance of the handrail at the terminal portion of the handrail can be minimized, thereby preventing accidents such as slipping of the handrail. It is possible to create an ink that prevents this from occurring, and to achieve ideal handrail sliding.

Note that although the protrusion 14 and the guide 15 on the upper part of the illustrated handrail frame 2a are attached continuously to a substantially semi-circumferential part, they may be arranged vertically at appropriate intervals.

〔Effect of the invention〕

According to the present invention, there is no unevenness in the running part of the handrail in the handrail terminal section, and bending resistance and running resistance can be minimized, so accidents such as slipping of the handrail can be prevented. I can do it.

[Brief explanation of the drawing]

FIG. 1 is a side view of a passenger conveyor according to an embodiment of the present invention;
Figure 2 is a sectional view taken along arrows -■ in Figure 1, Figure 3 is a perspective view of the handrail frame at the parapet terminal, and Figure 4 is a perspective view of the handrail frame at the parapet terminal.
The figures are a detailed view of the part ■ in Fig. 1, Fig. 5 is a side view of a conventional passenger conveyor, Fig. 6 is an enlarged side view of the part ■ in Fig. 5, and Fig. 7. 6 is a cross-sectional view taken along the line -■ arrow in FIG. 6, and FIG. 8 is a cross-sectional view taken along the line -■ arrow in FIG. 1...Handrail, 2...Handrail frame, 2a...Handrail frame, 1...Pulley, 12...Bearing, 13...Frame.

Claims (1)

[Scope of Claims] 1. In the railing of a passenger conveyor consisting of handrails that are arranged in an endless manner and rotate, and a handrail frame that supports the handrails, the handrails are provided at approximately a semicircumferential portion of the terminal portion of the railing. A railing for a passenger conveyor, characterized in that a pulley that idles as the handrail rotates is provided for guiding the rail. 2. In claim 1, the upper edge of the handrail frame of the parapet terminal portion is bent outward, and a guide made of a polymeric material is provided at the bent portion for guiding the handrail. A railing for a passenger conveyor, characterized in that a stopper is provided at an end of the guide to suppress longitudinal movement of the guide.