JPS58188283A - Spiral 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 a spiral escalator that ascends and descends while surrounding a cylinder in a spiral manner.

Various proposals regarding spiral escalators have been made in the past, and one of them is, for example, the
25559, a fan-shaped step is driven by two chains inside and outside so that the angular velocity with respect to the center of the cylinder is constant on a spiral trajectory.The sprocket on the upper layer is used to reverse the steps, and the bottom side of the trajectory is driven in the same spiral direction. There is one that is constructed in an endless shape by going backwards in the shape and inverting it with the lower sprocket. According to this proposal, the ratio of the diameters of the sprockets that guide the two supinated chains is set to the ratio of the inner and outer peripheral speeds of the fan-shaped step, and the transition section from the horizontal part to the inclined part or from the inclined part to the horizontal part In this case, the radius of one of the sprockets that drive the inner and outer chains is changed so that the angular velocity inside and outside of the fan-shaped step is constant.

However, this conventional device has a drawback in that it requires a complicated configuration in order to always keep the angular velocities inside and outside the fan-shaped step equal.

The present invention has been made in view of this point, and an object of the present invention is to provide a spiral escalator that has a simple configuration and can effectively utilize a narrow space.

An embodiment of the present invention apparatus will be described below with reference to the drawings. Fig. 1 is a side view of the entire spiral escalator of the present invention, Fig. 2 is a plan view of Fig. 1, Fig. 3 is a perspective view showing the steps in Fig. 1, and Fig. 4 is a view of the cylinder 1 of Fig. A portion of a developed view seen from center 0, FIG. 5 is an enlarged view of a portion of FIG. 2, FIG. 6 is a diagram showing the relationship between the center point 13 of the escalator and the step roller, and FIG. 7 is l-115! in Figure 4! FIG.

In Figure 1, 14 is the floor below the escalator, 15
is the upper floor of the escalator, between which is mounted an inner cylinder 1 having sufficient strength to support the weight of the spiral escalator of the invention and the mechanical forces exerted by the escalator drive. The height between the floors 14 and 15, ie the height of the building, is designated by H. 2 is the step of the escalator, and the center point 13 of the spiral escalator of the present invention
It has a fan-shaped planar shape surrounded by two radial straight lines passing through and two concentric circles passing through this center point 13.
It is supported and moved by a single drive chain 18 shown in FIG. 4 is an inner handrail, and 3 is an outer handrail, and the area around the center point 13 of step 2 moves at the same angular velocity as step 2.

Now, if the handrails 3 and 4 in step 29 are rotated clockwise in FIG. 2, this escalator will be used for ascending, and if it is rotated counterclockwise, it will be used for descending.

In the following description, it is assumed that the escalator rotates clockwise.

Reference numeral 5 denotes a floor plate which has a planar shape that is opposite to the floor plate 6, and has a guide plate winding which is opposite to the guide plate 7, although it is not shown in the figure. Passengers ride on the step 2 of the horizontal movement section of the escalator from above the floor plate 5. Following the movement in step 2, the robot ascends by H and reaches the 16th line, passes through the horizontal area up to the 17th line, advances to the upper floor plate O, gets off the escalator, and arrives at the upper floor 15.

The guide plate 7 guides the passengers onto the floor 15 and prevents them from falling onto -F since the lower step is much lower.

There is a chain sprocket 19 shown in FIGS. 4, 5, and 7 in the center of the lower part of the floor plate A, and the drive chain 18 is driven by this and rotates 180 degrees so that the lower part of the step 2 seen from above is rotated. The step 2 is at the bottom and the drive chain 18 is at the top as it descends. Lower floor floorboard 5
There is also a chain sprocket (not shown) below the chain, so that step 2 is again reversed by 180°, returns to the state shown in FIGS. 1 and 2, and begins to rise, repeating the above-mentioned operation.

11 is a space for accommodating a chain sprocket in the lower layer. This chain sprocket is of a driven type and rotates as the drive chain 18 moves in step 2. This is fitted with a tensioning device (not shown) for tensioning the drive chain 18. 20,2
σ is pins 20a and 20a' at both left and right front ends of step 2.
As shown in FIG. 6, a line Y connecting bins 20a and 20a' of the front wheel 20.
-Y passes through center point 13. 21.21' is a rear wheel rotatably provided at the lower left and right rear ends of step 2 by means of pins 21a, 21a', as shown in FIG.
A line 2-2 connecting the bins 21a and 21a' of 21' passes through the center point 13. Front wheel 20.20' and rear wheel 21.21'
run on guide rails 22, 22' and 2, 3, and 23', respectively, which are spirally provided in the ascending and descending section of the escalator. 24.24' is front wheel 20.20' and rear wheel 21
．． As shown in FIG.
．． The line 5X-X connecting 4.24' passes through the center point 13 and also passes through the center 200a of the connecting rod 200. 25.25' is a guide sprocket provided at the reversing part of the step 2 that rotates coaxially with the shaft 30 of the chain sprocket 19, and meshes with the roller pin 24, 24' to guide the reversing step 2. do. One end of the connecting rod 200 is attached to the lower surface of the step 2 on the line
It is rotatably coupled to the meshing portion 18a of No.8.

Next, an example of a method for driving the spiral escalator of the present invention will be described.

Now, for the sake of simplicity, the ascending operation state will be explained. First, the driving machine 26 drives the sprocket 28 via the chain 27, so that the chain sprocket 19 coaxial with the sprocket 28 rotates clockwise, and the endless drive chain 18 that meshes with it is driven. When the drive chain 18 is driven, tension is applied to the drive chain 18 and a centripetal force acts in the direction of the cylinder center, but since this is supported and guided by the spiral guide roller row 29, it is placed on the center line XX in step 2. The step driven by the drive chain 18 via the connecting rod 200 located at the centerline X-X
is guided so as to always pass through the cylinder center 13 (the angular velocities inside and outside of step 2 are equal) while maintaining a horizontal state.

That is, the horizontal support on the slope of step 2 is provided by the drive chain 18 and the guide roller array 29, and the vertical support of step 2 is provided by the spiral guide rail 22.
This is done by the front wheels 20, 20' and the rear wheels 21, 21' running over the angles 22', 23' and 23', respectively.

In the reversing section, roller pins 24 and 24' provided at both left and right ends of the step 2 engage with guide subrockets 25 and 25' that rotate coaxially with the chain sprocket shaft 30, and guide the step 2 during reversal. At the reversal section, the front wheels 20.20' and the rear wheels 21.21' are connected to the guide rails 22.
．． 22', 23, and 23' are in a free state without being supported and guided. Therefore, in the inclined part, the ratio of circumferential speeds inside and outside the step is the ratio of the cylinder radius, but in the inverted part, the ratio of circumferential speeds inside and outside the step is the same. By engaging the guide sprockets 25, 25' and the troller hinges 24, 24', the step 2 is reversed in the tangential direction of the cylinder, and the lower side of the ascending trajectory is guided by the drive chain 1.
8, it moves backwards in a spiral shape and repeats the circular motion endlessly.

As described above, according to the present invention, the center of the step is
It is driven by a real chain, and in the lifting section, both ends of the step are guided by the guide rail and the front and rear wheels, allowing for extremely stable lifting.In the reversing section, the roller pins and guiding sprockets installed at both ends of the step allow for extremely stable lifting. Vertical rotation is extremely easy, which simplifies device configuration.
Moreover, it is possible to obtain a spiral escalator that can utilize space effectively.Furthermore, the present invention has the following effects. FIG. 8 is an explanatory diagram for explaining this effect, in which 19 is an upper chain sprocket, 19' is a lower chain sprocket, and D is a chain sprocket 19.
19' diameter, 101 is the locus of the upper drive chain in the lower horizontal section, 102 is the locus of the upper drive chain in the lower M transition section,
103 is the locus of the upper drive chain in the inclined part, 104 is the locus of the upper drive chain in the upper transition part, 105 is the locus of the upper drive chain in the upper horizontal part, 106 is the locus of the drive chain in the upper inversion part, and 107 is the upper horizontal 108 is the locus of the lower drive chain at the upper transition section; 109 is the locus of the lower drive chain at the inclined section; 11
0 indicates the locus of the lower chain in the lower transition section, 111 indicates the locus of the lower drive chain in the lower horizontal section, and 112 indicates the locus of the drive chain in the lower reversal section.

Since the spiral escalator according to the present invention has a mechanism in which the center of the step is driven by a drive chain, even if the trajectories 101 to 105 and 107 to 111 of each drive chain shown in FIG. Since they are always equal, the locus 103 of the upper drive chain and
The distance Ho from the locus 109 of the lower drive chain can be shortened regardless of the diameter of the chain subrocket 19, 19'. Therefore, according to the present invention, since the interval between the steps of the upper and lower stages can be reduced, the space used can be easily reduced, and the upper and lower drive chains can be supported by a common bracket, which is better than the conventional spiral escalator. can also reduce the total weight

[Brief explanation of the drawing]

Fig. 1 is a side view of the entire spiral escalator of the present invention, Fig. 2 is a plan view of Fig. 1, Fig. 3 is a perspective view showing the steps in Fig. 1, and Fig. 4 is a view of the cylinder 1 of Fig. center 0
FIG. 5 is an enlarged view of a portion of FIG. 2, FIG. 6 is a diagram showing the relationship between the center point 13 of the escalator and the step roller, and FIG. A sectional view taken along the line I=I in the figure, and FIG. 8 are explanatory diagrams for explaining the present invention in detail. 1001 cylinder 211. Fan-shaped step 13, Center point 1B, Drive chain 18a, Engagement part 19, 19', Chain sprocket 20, 20'
, , Front wheels 21, 21', , Rear wheels 24, 24', , Roller pins 25, 25'
, ,Guiding sprocket 29 ,,Guide roller row 200 ,,Connecting rod 1 Fig. 0 Logco L II + 4 Both mouths 5 (2)

Claims (1)

[Claims] A spiral track is installed at appropriate intervals on a vertical or near-vertical cylinder so that the fan-shaped step is horizontal, and a drive chain supported and guided by a spiral guide roller row moves the central part of the step. In an escalator that is driven along the track, reversed by an upper sprocket, moved backwards along the lower side of the track in the same spiral shape, and reversed by the lower sprocket, an upper drive chain and a lower drive chain are used. A spiral escalator characterized in that the spacing is configured to be independent of the diameter of the sprocket.