JPS6238274B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a curved escalator.

The curved escalator has a main frame that forms a circular arc shape in a horizontal projection plane, and a conveyance path that has a horizontal portion at the end and an inclined portion in the middle.
A large number of treadles each having a fan-shaped plane are arranged in succession on the conveyance path, and are arranged in an endless manner to form the forward path side forming the conveyance path on the upper surface of the main frame, and a reversing section is formed at the end of the forward path side. The return path side is constructed within the main frame, and is manufactured so as to circulate along a predetermined route. The movement of the treads of such a curved escalator will be explained with reference to FIGS. 1 and 2.

In the figure, 1 is the main frame of the curved escalator, 2 is a conveyance path formed by this and forms an arc, 2a is a horizontal part constructed at the end of the conveyance path 2, and 2b is the conveyance path 2.
The inclined part 3 formed in the middle part of the main frame 1 is a tread plate having a sector-shaped plane and a large number of which are successively arranged on the main frame 1.

That is, when the treadboards 3 move on the horizontal part 2a of the conveyance path 2 and when they move on the inclined part 2b, the mutual spacing between the treadboards 3 is not the same, and the mutual spacing ratio of the treadboards 3 on the outside and inside of the conveyance path 2 is as follows. It comes to be stated in the following. That is, when moving the horizontal part 2a l1/l2=R1/R2 When moving the inclined part 2b l1/l3=cos θ2/cos θ
1・R1/R2 where θ1: Inclination angle on the outside of the conveyance path 2 θ2: Inclination angle on the inside of the conveyance path 2 R1: Outer radius of the conveyance path 2 R2: Inner radius of the conveyance path 2 l1: Outside of the conveyance path 2 The distance between the treadles 3 at l2: the distance between the treadles 3 at the inner horizontal portion 2a of the conveyance path 2, l3: the distance between the treadles 3 at the inner inclined portion 2b of the conveyance path 2. Also, the treadle 3 moves outward from the inside of the conveyance path 2. The distance becomes longer. On the other hand, since the distance of movement is the same, there is a difference in the inclination angle when unfolded depending on the distance from the center of the arc of the transport path 2.
The outside and inside inclination angles are given by the following formulas.

R1tanθ1=R2tanθ2 ...... Due to such a difference in inclination angle, the angular velocity is constant on the outside and inside of the conveyance path 2, and in order for the treadle 3 to move at an incline while maintaining a horizontal posture on the inclination part 2b, the following is required. You need to exercise at the speed stated in .
That is, the horizontal portion 2a of the conveyance path 2 of the footboard 3
When the speed on the outside is V1, the speed V2 on the inside of the horizontal part 2a is V2=V1×R2/R1, and the value of the speed on the outside of the conveying path 2 along the slope line at the slope part 2b of the tread plate 3 is V1. Then, the velocity V3 inside the inclined part 2b is V3=cosθ1/cosθ2・R2/R1・
It becomes V1. Here, V3−V2=V1R2/R1(cosθ1−cosθ2/
cos θ2) Therefore, from the relationship of the above equation, θ1<θ2 ∴V3<V2, and therefore, it is necessary to change the speed of the footboard 3 in the horizontal portion 2a and the inclined portion 2b.

This invention solves the above-mentioned problems and provides a curved escalator that can smoothly move the tread on an arcuate conveyance path.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 7.

In the figure, the main frame 1 and the conveyance path 2 have been described above, so their explanation will be omitted.
An inverted portion (not shown) is formed at the end of the outgoing side 3a to form a return side 3b within the main frame 1, which is arranged in an endless manner. 3c is a front wheel axle provided on each of the tread plates 3, 3d is a front wheel pivotally connected to this and has a groove 3e, 3f is a rear wheel provided on each of the tread plates 3, and 3g is a part of a conical curved surface. Risers of configured treads 3, 4
is a front wheel 3d arranged along the movement path of the treadle 3 and fixed to the main frame 1, and arranged inside the conveyance path 2.
Second rails are provided on the upper and lower sides and fitted into the grooves 3e, 5 is a rear wheel rail provided along the second rail 4 and fixed to the main frame 1, and guides the rear wheel 3f; 6 is a rear wheel rail; A link provided on each of the front wheel axles 3c inside the conveyance path 2, one end of which is attached to the front wheel axle 3c.
The other end is pivotally connected to the other end of a link 6 which is pivotally connected to another front wheel axle 3c adjacent to the front wheel axle 3c. 7 is pivotally supported at the mutually pivoting ends of the links 6 and has a groove 7.
A third rail 8 is provided along the second rail 4 and fixed to the main frame 1, and a third rail is disposed above and below the roller 7 and fitted into the groove 7a.
Reference numeral 9 denotes a treadle chain disposed outside the conveyance path 2, one end of which is pivotally supported by the front wheel shaft 3c of the treadle 3 on the outside of the conveyance path 2, and the other end is a link that is mutually pivotally supported by a vertical shaft. It consists of a piece 9a and is configured to be able to move in a three-dimensional curve. Reference numeral 10 indicates a guide wheel pivotally connected to the mutual pivot shaft of the link pieces 9a, and 11 indicates a guide wheel arranged along the moving path of the footboard 3 and fixed to the main frame 1, and a front wheel 3d arranged outside the conveyance path 2 and the guide wheel. The first rail 12 that guides the wheel 10 is a drive machine that is fixed to the main frame 1 and placed between the outbound side 3a and the return side 3b of the treadle 3, and is a caterpillar-shaped drive band driven by an electric motor and a speed reducer. 12a and a front wheel axle 3c provided thereon.
An engaging element 12b that engages with is provided.

That is, the treadle 3 is connected to each other by a link 6 on the inside of the conveyance path 2 and a treadle chain 9 on the outside of the conveyance path 2, and is guided by the first rail 11, the second rail 4, and the rear wheel rail 5. . A driving machine 12 is provided in the longitudinal middle of the conveyance path 2, and the engaging element 12
b, the treadle 3 is operated via the front wheel axle 3c and the 7 wheel axles and circulates around the main frame 1. Also, when the footboard 3 moves on the horizontal portion 2a of the conveyance path 2, and when the treadle 3 moves on the horizontal portion 2b,
The second rail 4 and the third rail 8 in the main part of the conveyance path 2
The connecting angle of the link 6 via the front wheel 3d and the rolling wheel 7 is changed by changing the mutual distance between the treads 3, and the mutual distance between the tread plates 3 is made to correspond to the movement of the horizontal portion 2a and the movement of the inclined portion 2b of the outward path side 3a. ing. That is,
By satisfying the following conditions, the tread 3
The mutual spacing between the tread plates 3 is made to correspond to the horizontal portion 2a and the inclined portion 2b, and the gap between the tread plates 3 can be made constant throughout the forward path side 3a, allowing smooth movement.

That is, the distance between the treads 3 on the outside of the transport path 2 in the horizontal part 2a and the inclined part 2b is l1, the distance l2 between the treads 3 on the transport path 2 side in the horizontal part 2a is set as l2=l1×R2/R1, and the slope Step board 3 inside conveyance path 2 of section 2b
The mutual spacing l3 is l3=cosθ1/cosθ2×R2/R1
By setting the interval between the second and third rails 4 and 8 so that xl1, a curved escalator in which the footboard 3 can be moved normally can be obtained.

Note that the links 6 and the like in this embodiment are replaced by the treadle 3.
Attach the tread chain 9, etc. to the tread plate 3 on the outer side edge of the conveyance path 2.
It is clear that the same effect as in the embodiments shown in FIGS. 1 to 7 can be obtained also when it is provided on the inner side edge of the conveyance path 2.

As explained above, the present invention arranges a large number of treadboards in succession on a conveyance path that has an arc shape in a horizontal projection plane and has a horizontal part and an inclined part, and curves one side edge of the treadboard into a three-dimensional curve. The treads are connected by a movable tread chain and provided with a number of links connecting all the treads, one end of which is mutually pivotally connected to the other side edge of the treadboard, and the other end of which is respectively pivotally connected to an adjacent treadboard; In addition, a second rail engaged with the front wheel of the treadle and a third rail engaged with a roller pivotally supported by a mutually pivoting part of the link are provided, and the second rail and the third rail are provided in a main part of the conveyance path.
The distance between adjacent treads is changed by changing the distance between the rails and changing the angle between the links via the front wheels and rollers. This makes it possible to realize a curved escalator in which the mutual spacing of the treads during circulation corresponds to the horizontal and inclined parts of the conveyance path, allowing the treads to move normally and safely for passengers. be.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of a curved escalator according to the present invention, FIG. 2 is a plan view of FIG. 1,
Figure 3 is a cross-sectional conceptual diagram of the main part of Figure 2, and Figure 4 is a conceptual diagram of the main part of Figure 2.
Figure 5 is a conceptual plan view of Figure 3, and Figure 5 is a conceptual side view of Figure 3.
6 is a diagram illustrating the state of movement of the treadle on the outside of the conveyance path in FIG. 5, and FIG. 7 is a diagram illustrating the state of movement of the treadle on the inside of the conveyance path in FIG. 1... Main frame, 2... Conveyance path, 2a... Horizontal part,
2b...Slope part, 3...Treadboard, 3a...Outbound side,
3b...Return side, 3c...Front wheel axle, 3d...Front wheel, 4...Second rail, 6...Link, 7...Rolling wheel, 8...Third rail, 9...Tread chain, 11... …
1st rail. In addition, the same parts or corresponding parts in the figures are indicated by the same reference numerals.

Claims (1)

[Claims] 1. An escalator main frame that is constructed between two floors of a building and has a conveyance path that is arc-shaped in a horizontal projection plane and has a horizontal part at the end and an inclined part in the middle, and a large number of escalators connected to this main frame. Steps arranged in an endless manner, forming an outgoing path forming the conveyance path on the upper surface of the main frame, having a reversing part formed at the end of the outgoing path, and forming a return path within the main frame, and moving in circulation along a predetermined path. , a tread chain consisting of a chain capable of three-dimensional curvilinear movement and arranged on one side edge of the inside and outside of the arc of the tread plate and connecting the tread plate via this side edge; and a tread chain fixed to the main frame. a first rail that is arranged along a movement path of the tread board and guides a side edge of the tread board provided with the tread chain; A large number of links are pivotally connected to each of the front wheel axles provided on the other upper inner side edge and connect all of the tread plates, and a plurality of links are fixed to the main frame and arranged along the movement path of the tread plates. a second rail that engages with the front wheel pivotably mounted on the front wheel shaft and restricts the moving path of the front wheel; and a pivot joint between the links fixed to the main frame and arranged along the second rail. engages a rolling wheel pivotally supported on the conveyor path, and is disposed close to the second rail in a part of the conveyance path to widen the distance between the adjacent tread plates through mutual angular changes between the links; A curved escalator further comprising: a third rail disposed apart from the second rail in the other part of the conveyance path to reduce the distance between the treads.