JPS5982283A - Circular escalator - 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 the structure of a circular escalator.

A circular escalator has a main frame that is arc-shaped in a horizontal projection plane and is arranged at an angle, forming an endless conveyance path on the main frame, and a large number of steps with fan-shaped planes are arranged continuously on the conveyance path. , and are connected and circulated on the conveyance path. However, the reversing mechanism for reversing the steps that are fan-shaped and connected to each other at the reversing section of the conveyance path is complicated.

In addition, the inversion of the steps required a large space for the dormitory, resulting in a large main frame, which restricted the installation of a 9-circular escalator.

The present invention aims to eliminate the above-mentioned drawbacks, and provides a circular escalator that can be installed in a small space by allowing the steps to be reversed with a simple configuration.

An embodiment of the present invention will be explained below with reference to Fig. 1H and Fig. 6.
I will clarify.

In the figure, (1) is the main frame of a circular escalator, which is arranged in an arc shape and tilted in the horizontal projection plane.

(1a) is the upper end of the main frame (1), (1b) is the lower end,
(21&'!, in the conveyance path configured in the main frame (1), the outgoing path (2a) is on the top side of the main frame (1), and the reversing part (2b) is on the end of the main frame (1), or the main frame A return path (2c) is formed on the bottom side of (1) and is configured in an endless manner. (3) is a step with a fan-shaped plane and a large number of steps are successively arranged on the conveyance path (2); ) is arranged in the width direction of the step (3), is pivotally supported by the step (3), and has both ends facing the I1 side (6) of the step (3).
The shaft protruding from b), (30) is the tread of step (3),
(4) is a driving wheel pivotally supported at both ends of the shaft (3a), and (5) is fixed to the main frame (1) and provided along the conveyance path (2) to guide the driving wheel (4). The rail (6) is pivoted to the step (3) and is opposite the tread (3C) from the axis (3a).
The driven wheels (7) are placed close to each other, the rail (7) is fixed to the main frame (11) and is provided along the conveyance path (2) to guide the driven wheels (6), and (8) has one end attached to the shaft (3a). The arm (8a) is pivotally attached to the conveyor path (2) and is arranged inside the circular arc and faces the side surface (3b).
3a) Connecting pin placed parallel to (9) arm (8)
an adjustment roller pivotally supported at the other end.

00 is an adjustment rail fixed to the main frame (11) and provided along the conveyance path (2) to guide the adjustment roller (9);
1) is an inner chain provided endlessly along the conveyance path (2) and connected to connecting pins (8a) arranged inside the circular arc of the conveyance path (2) and corresponding to all the steps (3);
Q3 is an outer chain that is provided endlessly along the conveyance path (2), is placed outside the circular arc of the conveyance path (2), and is connected to the shaft (3a) corresponding to all the steps (3); The reversing section (2b) of the conveyance path (2) is provided at the end of the main frame (1).
), the small chain wheel (13a) is pivotally supported on the main frame (1) and around which the inner chain αB is wound.
and a large chain wheel (13'
It is mainly composed of b). 0◇ is a drive device that has a chain transmission mechanism (14a) provided at the end of the main frame (1) and wrapped around the reversing mechanism 03, and drives the inner and outer chains U and t1Z via the reversing mechanism 0. .

That is, the step (3) is connected to the inner chain U via the connecting pin (8a), arm (8), and shaft (3a) on the inside of the circular arc of the conveyance path (2), and to the shaft on the outside of the circular arc of the conveyance path (2). (3a) to the outer chain α3, and the inner chain +1
11 and the connecting part of the outer chain α2 (3)
are rotatably connected. Then, when the C-drive drive device is energized, the inner and outer chains (Ill, H) circulate through the conveyor path (2), and the drive wheel (4) is attached to the rail (5) and the driven wheel (6) is attached to the rail. (7) Rolls while being guided by.

Also, the inside of the circular arc of the conveyance path (2) of the steps (3) is connected to the connecting pin (
8a), and is connected to the inner chain U by a distance A closer to the tread surface (3C) than the connection part with the outer chain fI2 inside the circular arc of the conveyance path (2). This distance A is set by the following formula - where r2: Pitch circle radius R1 of the small chain wheel (13a): Outer chain α2 on the outside of the horizontal arc of the conveying path (2)
Radius of curvature R2 of the center line: Radius of curvature of the center line of the inner chain aυ on the inside of the horizontal arc of the conveying path (2), and the connecting part of the outer chains U, (IZ) of the steps (3) at the 9 inversion part (2b) The line connecting the two engages with the reversing mechanism θj and performs a reversing operation according to a locus along the conical surface.

On the other hand, the step (3) itself has inner and outer chains αD.

Since it is rotatably connected to the connecting part of α3,
By regulating the reaction locus of the driven wheel (6) at the reversing portion (2b) by the rail (7), the step (3)
can be reversed by a trajectory along the cylindrical surface. Furthermore, since the shaft (3a) is mounted near the surface of the step (3), the height of the step (3) can be designed to be low, and the depth of the main frame (11) can be reduced. With the simple reversing mechanism OJ, the space for reversing the steps (3) can be reduced, and the main frame (11) can be made smaller, resulting in a circular escalator with fewer restrictions on installation space. The drive wheels (4) on both sides of the main frame (1) are arranged on the outside of the inner and outer chains (Ill, α2) in the width direction of the main frame (1).
Maintenance work such as replacing the drive wheels (4) can be easily carried out at the first ends (Ia) and (1b).

Further, as the step (3) moves, the adjustment roller (9) moves while being guided by the adjustment rail α.
) is regulated. On the other hand, Leh/
I/(51(7)) must be made into a precise spiral and set in a predetermined position, especially on the outbound path (2a), and if there is an error in the rails (5) and (7), the steps (3) may be mutually disengaged. However, by adjusting and setting the position of the adjustment rail aυ with respect to the predetermined outward path (2a), the position of the arm (8) relative to the step (3) can be changed, and the step (3) can be moved while maintaining their normal mutual positions.

As described above, the present invention provides a method for moving the inside of the circular arc of the conveying path of a step provided on a conveying path that is arc-shaped and inclined in a horizontal projection plane through a connecting pin of an arm that is engaged with a shaft pivotally connected to the step. outside the arc of the transport path of the step (ill) is connected to the outer chain via the shaft closer to the tread than the connection with the inner chain and closer to the tread than the connection with the outer chain, and The position relative to the step is controlled by an adjustment roller and an adjustment rail that guides it, and the
A reversing mechanism is provided for reversing the line connecting the connecting portion with the outer chain by a trajectory along a conical surface, and the step itself by a trajectory along a cylindrical surface. This allows the steps to be reversed using a simple reversing mechanism in a small amount of space.

The frame can be made into a /J shape, which alleviates restrictions on installation space, and also prevents steps from colliding with each other and creating gaps due to installation errors. It is possible to correct abnormalities and realize a highly safe circular escalator.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of a circular escalator according to the present invention, and FIG. 2 is a plan view of FIG. 1. 3 is a sectional view of the main part taken along the line ■-■ in FIG. 2, FIG. 4 is a left side view of the main part of FIG. 3, and FIG. 5 is a plan view of the main part of FIG. FIG. 6 is a sectional view of the main part taken along the line Vl-VI in FIG. 2. (11... Main frame, (2)... Conveyance path, (2a)
...Outbound, (21))...Reverse section, f20)...
・Return trip, (3)...Steps, (3a)...Axle, (
3b)...Side surface, (3c)...Tread, (4)...
・Drive wheel, (5)...rail, (6)...driven wheel,
(7)...Rail, (8)...Arm, (8a)...
・Connection pin. (9)...adjustment roller, (11...adjustment rail, U
...Inner chain, 03...Outer chain, (1
3... Reversing mechanism, (13a)... Small chain wheel, (
13b)...Large chain wheel The same parts in Figure 9 are indicated by the same reference numerals. Agent Makoto Kuzuno - Figure 1 Figure 2 /4 Figure 3 Figure 4 Figure 5 Procedural amendment (spontaneous) Mr. Commissioner of the Japan Patent Office 1, Indication of case Japanese Patent Application No. 1987-192712 2
, Title of the invention Circular escalator 3, Relationship to the case of the person making the amendment Patent applicant address 2-3 Marunoshiratama-chome, Chiyoda-ku, Tokyo Name (601) Mitsubishi Electric Corporation Representative Jinhachibe Katayama 5; Target of amendment il+ Brief explanation column of drawings in the specification (2) Drawing 6 Contents of amendment (1) In the 8th line of page 9 of the specification, the phrase “principal part left side” has been changed to “
The main part is on the right side.'' Ru. Above Figure 3 Figure 4

Claims (1)

[Scope of Claims] A main frame having an arcuate shape in a horizontal projection plane and arranged at an angle; A conveyance path which is endless with return paths formed on the bottom side of the main frame, a number of steps having a fan-shaped plane and arranged in succession on the conveyance path, and steps provided on each of these steps. A shaft arranged along the width direction and pivotally supported by the step, with both ends protruding from the side edges of the step, and a shaft pivotally connected to both ends of the shaft and guided to the rail of the conveyance path. a driven wheel that is pivotally supported on the step and is disposed closer to the opposite side of the step than the shaft and guided to the rail of the conveyance path; an arm disposed inside the arc of the conveyance path, facing the side surface of the step, and having a connecting pin erected in the middle; an adjustment roller pivotally attached to the other end of the arm 1; an adjustment rail provided along the conveyance path to guide the adjustment roller and change the position of the arm relative to the step; and an adjustment rail provided along the conveyance path and arranged in an endless manner, and arranged inside the circular arc of the conveyance path. an inner chain connected to the connecting bin; and an outer chain arranged endlessly along the conveyance path, arranged outside the circular arc of the conveyance path, and connected to the shaft. A large chain wheel on which the outer chain is unwound and a small chain wheel on which the inner chain is wound are disposed at the end of the main frame and constitute a reversal part of the conveyance path, and are arranged on the cylindrical surface. A circular escalator equipped with a reversing mechanism that reverses the steps according to the trajectory they follow.