JPS5878984A - Driving device 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 The present invention relates to a drive device for a passenger conveyor, which is provided with r&l'lVc drives in the longitudinal direction of the main frame.

First, a conventional passenger conveyor drive device will be explained with reference to FIGS. 1 to 3.

In the figure, (11 is the main frame of the passenger conveyor, (21 is the main frame (1
Toothed links arranged endlessly along the length of 1 (main frame) (outward side that moves linearly in the middle of 1 important hand).

(2@) is the return side formed parallel to the outbound side [2b).

+3+ki @'Many treads connected to board chain■, (4
) is the main frame (51 arrived in the longitudinal middle of 11 and is placed on the outbound side (2b
) and the return side (2).
! Deceleration driven by (4m) 1! A driving mirror consisting of a roller chain (4b) and a roller chain that is biased by its output shaft and arranged in a caterpillar shape, and the roller (4) engages with a toothed link (2a)? aa) The driving mirror (4d) has the negative side facing the i-way side (2b).

When the other side engages with the return side (2・)K and the electric motor (4a) is energized, the treadle chain (2) is driven via the deceleration MA<ab) and the driving mirror (4m) Yt, and the treadle 13+ is operated. be done. The fastening structure becomes complicated, which increases the production cost, and also causes uneven movement. Also, due to the pressure angle of the teeth of the toothed link (2a), as shown in Fig. 183, the toothed link (2a) has MS! Because a reaction force is generated in the direction of .

There was a problem with vibrations that caused discomfort to passengers on the treads (31).

The present invention aims to solve the above-mentioned drawbacks and provides a drive device for a passenger conveyor that has a simple structure and generates less vibration due to the engagement of the drive machine and the treadle chain.

Hereinafter, one embodiment of each invention will be described with reference to FIGS. 4 to 7.

In the figure, the same symbols as in Figures 1 to 3 indicate corresponding parts, (
3m) is a treadle (3+ roller), (21 is a treadle chain constituted by a link (2a) connected by the axis of this and a plurality of rollers (2d) pivotally attached to the link (2a), (4.) is a chain gear fixed to the output shaft of the reduction gear, 41 (4b), and is equipped with involute teeth (4f)l with a pressure angle of 0° and whose base circle diameter matches the pitch circle diameter.

In other words, the chain gear (4) has negative teeth on the negative side and negative teeth on the positive side (
4f) on the treadle chain (2) and the roller (2b) on the outgoing path side (2b).
d), the impoliate tooth (4t) K on the other side meshes with the roller (2d) on the pass return side (2e). At this time, since the pressure of the involute tooth (4f) is negative, as shown in Fig. 87, there is no reaction force in one direction across the longitudinal VC of the link (2a), and the tread plate @ (2) The vibration caused by ff1t can be reduced. Further, the driving of the tread chain (21) by the chain gear (4.)K does not cause uneven driving in the interlocking direction of the tread plate @(2).Therefore, a passenger conveyor with good riding comfort can be obtained.

As explained above, this invention has a treadle chain that is arranged in an endless manner and forms an outbound side and a return side that move linearly parallel to each other, and has involute teeth whose base circle diameter matches the pitch circle diameter, and one side of which has involute teeth whose base circle diameter matches the pitch circle diameter. The tortoise was driven by a drive machine with a chain gear that meshed with the teeth on the forward side and on the return side with the teeth on the other side. As a result, since the pressure angle of the impregnated and -to teeth is 0'', no reaction force is generated in the direction of direct firing in the longitudinal direction of the tread chain when it engages with the tread chain, and drive unevenness in the direction of movement of the f & tread chain is caused. Because it does not occur when driving the tread chain;
To realize a driving device for a passenger conveyor, which can reduce vibrations (h + 7') and improve riding comfort.

4. Brief explanation of the drawings.

@Figure 1 shows the drive system of a conventional passenger conveyor.
Figure 2 is an enlarged view of the main parts of Figure @1, Figure 3 is a schematic diagram explaining the engagement between the toothed link and drive in Figure 2, and Figure @4 is a passenger conveyor according to the present invention. A diagram equivalent to the W&1 diagram showing an example of the drive device, and the mS diagram is the 4th diagram.
Figure 6 is a plan view of the mS diagram, and Figure 87 is a schematic diagram illustrating the engagement of the tread chain and chain foot in Figure 5 and Figure 6.

(11...Main frame, (2)...Tread chain, (2b)
...Outbound side, (2*)...Return side, (4)...
・Driver, (4.)...Chain gear, (4f)...
Involute teeth In Figure 9, the same or equivalent parts are designated by the same reference numerals.

Agent Nobu Kuzuno - One boat

Claims (1)

[Scope of Claims] A treadle chain arranged endlessly along the length of the main frame q and having an outbound side and a return side that move parallel to each other and linearly at the longitudinal intermediate portion, and the main body. a driving machine attached to a longitudinally intermediate portion of the frame and disposed between an outbound side and a return side of the treadle chain; A chain gear that is provided on the output shaft of this drive machine and has impregnated and -tooth teeth whose base circle diameter matches the pitch circle diameter, and which meshes with the above-mentioned return route side by the teeth on one side and the above-mentioned return route side by the teeth on one side. Passenger conveyor drive with and.