JPS6219662Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the structure of a guide roller array support device for a spiral escalator that ascends and descends while surrounding a cylinder in a spiral manner.

Various proposals have been made regarding spiral escalators, but recently the applicant has proposed a single escalator in which the center of the steps with fan-shaped treads is supported and guided by a spiral guide roller array in the passenger transport section and the return section. Driven by a drive chain of A spiral escalator was proposed.

This device will be described below with reference to the drawings. Figure 1 is a side view of the entire spiral escalator.
Fig. 2 is a plan view of Fig. 1, Fig. 3 is an enlarged perspective view of the steps in Figs. 1 and 2, and Fig. 4 is a partial developed view of the cylinder 1 in Fig. , FIG. 5 is an enlarged view of a part of FIG. 2, and FIG. 6 is a sectional view taken along the line -- in FIG.

In FIG. 1, 14 is the lower floor of the escalator, 15 is the upper floor of the escalator, and between these is an inner cylinder having sufficient strength to support the weight of the spiral escalator and the mechanical force applied by the escalator drive device. 1 is installed. The height between the floors 14 and 15, ie the height of the building, is designated by H. 2 is an escalator step, which has a fan-shaped planar shape surrounded by two radial straight lines passing through the center line 13 of the spiral escalator and two concentric circles centered on this center line 13. It is supported and moved by a single drive chain 18 shown in FIGS. 3-5. 4 is an inner handrail, and 3 is an outer handrail, which move around the center line 13 of this spiral escalator at the same angular velocity as step 2.

Now, if step 2 and handrails 3 and 4 rotate clockwise as shown in Figure 2, this escalator will be used for ascending.
If it rotates counterclockwise, it will descend. In the following description, it is assumed that the escalator rotates clockwise.

Reference numeral 5 denotes a floor plate having a planar shape that is opposite to the floor plate 6, and also has a guide plate 7 and the opposite side, although not shown. Passengers step onto step 2 of the horizontal movement section of the escalator from above the floorboard 5. As it moves up in step 2, it rises by H until it reaches the 16th line, passes through the horizontal area up to the 17th line, advances to the upper floor plate 6, gets off the escalator, and arrives at the upper floor 15. do. The guide plate 7 guides the passengers onto the floor 15 and prevents them from falling onto the lower step, which is much lower.

There is a chain sprocket 19 shown in FIGS. 4 to 6 in the lower central part of the floor plate 6, which drives the drive chain 18 and rotates the drive chain 18 by 180 degrees so that the step 2 moves below the step 2 seen from above. , the drive chain 18 is in the upper position and lowers. There is also a chain sprocket (not shown) below the floor plate 5 in the lower layer, so that the step 2 is turned once again by 180 degrees and returns to the state shown in FIGS. Repeat. Reference numeral 11 denotes a space for accommodating a chain sprocket in the lower layer. This chain sprocket is of a driven type and is rotated by the movement of the drive chain 18 in step 2. It is fitted with a tensioning device (not shown) for tensioning the drive chain 18. Reference numeral 20 indicates a front wheel provided at both left and right front ends of the step 2, and 21 indicates a rear wheel provided at both the lower left and right rear ends of the step 2. These wheels run on guide rails 22 and 23 provided in a spiral shape in the ascending and descending section of the escalator, respectively. Run. 24
25 is a roller pin provided at both lower ends of the step 2 located approximately in the middle between the front wheel 20 and the rear wheel 21, and 25 is a guide provided at the reversed portion of the step 2 which rotates coaxially with the shaft 30 of the chain sprocket 19. The sprocket engages the roller pin 24,
Guide step 2 during reversal. Reference numeral 2a denotes a long connecting rod whose one end is attached perpendicularly to the back surface of the approximately central part of the step board of step 2, and whose other end is rotatably connected to the meshing portion 18a of the drive chain 18 by a pin 2b. It is.

Next, an example of dimensions for driving this spiral escalator will be shown.

Now, for the sake of simplicity, the ascending operation state will be explained. First, the drive source 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. The drive chain 18 is supported and guided by a spiral guide roller row 29.
Support for the force directed toward the center of the cylinder that acts when tension is applied to the drive chain 18, and the center line XX of step 2 connected to the drive chain 18 via the connecting rod 2a passes through the center of the cylinder 13 (step 2).
(the inner and outer angular velocities are equal). In other words, the left and right support in the passenger transport section and the return section in step 2 is provided by the drive chain 18 and the guide roller row 29, and the vertical support in step 2 is provided by the front wheels running on the spiral guide rails 22 and 23. This is done by running the rear wheels 20 and 21, respectively.

In the reversing section, the step 2 is attached to the guide sprocket 25, which rotates coaxially with the chain sprocket 19.
Roller pins 24 provided at both left and right ends of the step 2 engage with each other to guide the step 2 during reversal. At the reversal section, the front wheels 20 and the rear wheels 21 are mounted on guide rails 22, 2.
At 3, it is in a free state without any support or guidance. 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. In the reversing section, the step 2 is reversed in the tangential direction of the cylinder due to the engagement between the guide sprocket 25 and the roller pin 24, and the drive chain 18 moves the spiral return path, which is constructed parallel to the lower part of the passenger transport section, into a helical shape. The robot is then driven up and down an endless step circulation path, and this process is repeated.

By the way, a drive chain is attached to the approximate center of the step via a connecting rod, and this drive chain is supported and guided by a row of guide rollers. With special spiral escalators, it is difficult to extend the brackets from the trusses on both sides of the step to support the guide roller rows, and in the reversal section, it is difficult to extend the guide roller rows to almost directly above and directly below the sprocket 19. There is a need.

The present invention was created in view of the above points, and includes a spiral passenger transport section, a spiral return section constructed in parallel below the passenger transport section, and a connection between the passenger transport section and the return section. A spiral spiral in which the step is driven by a drive chain via a connecting rod made of a long piece provided at the center of the back surface of the step having a fan-shaped tread along a step circulation path consisting of a reversing section and a reversing section. An object of the present invention is to provide an optimal guide roller row supporting device that can simultaneously support guide roller rows in a passenger transport section and a return section in a type escalator.

FIG. 7 is a perspective view showing a guide roller row support device according to one embodiment of the present invention, and FIG. 8 is a plan view thereof. The same reference numerals as in FIGS. 1 to 6 indicate the same items. In the drawing, 29' is a guide roller row which supports and guides the drive chain 18 on the reverse side, 40 is a support pillar erected in the space inside the inner cylinder 1, and 41 is a cross beam which extends horizontally outward from the support pillar 40 and supports the upper guide roller row 29 and the lower guide roller row 2
9'.

Reference numeral 42 denotes a column whose approximately central portion is fixed to one end of the outer side of the cross beam 41 and is vertically attached, and which supports the upper guide roller row 29 and the lower guide roller row 2.
9'. An upper beam 43 has one end fixed to the upper end of the column 42 and extends horizontally from the upper end of the column 42 toward the chain sprocket 19. The upper beam 43 has an upper row of guide rollers attached thereto. Similarly, 43' is a lower beam having one end fixed to the lower end of the column 42 and extending horizontally from the lower end of the column 42 toward the chain sprocket 19 side.
A lower guide roller row is attached to 3'. Therefore, the pillar 42, the upper beam 43, and the lower beam 4
3' constitutes a beam formed in a U-shape.

With the above configuration, even if the steps are reversed in the tangential direction of the cylinder in the reversing section and the escalator is a spiral escalator that moves backwards in a spiral manner on the lower side of the ascending track, the upper drive Not only can a single support device support the guide roller array that supports and guides the chain and lower drive chain, but it can also be installed almost directly above and below the chain sprocket, which rotates in a vertical plane. It can be driven smoothly with a sprocket for
It does not induce vibration or noise.

In the above explanation, a cross beam is extended outward from a support column provided in the inner cylindrical space, and a U-shaped beam consisting of an upper beam and a lower beam is provided on this cross beam, and the upper and lower guide rollers are connected to each other. As described above about the support device that supports the rows, if there is an outer cylindrical space, a U-shaped beam extending the crossbeam inward from the support column provided in the outer cylindrical space is provided to support the guide rollers. It may be arranged to support columns.

[Brief explanation of the drawing]

Figure 1 is a side view of the entire spiral escalator, Figure 2 is a plan view of Figure 1, and Figure 3 is a side view of the entire spiral escalator.
Figure 4 is an enlarged perspective view of the step in Figure 1.
Part of the developed view seen from the center O of cylinder 1 in the figure, No. 5
The figure is a partially enlarged view of FIG. 2, FIG. 6 is a sectional view taken along the line -- in FIG. 4, FIG. FIG. 7 is a plan view of FIG. 7; 1...Cylinder, 2...Step, 18...Drive chain, 19...Sprocket for chain, 2
9, 29'...Guide roller row, 40...Support column, 41...Horizontal beam, 42...Column, 43...Upper beam, 43'...Lower beam.

Claims (1)

[Scope of utility model registration request] A step having a fan-shaped tread plate is provided with a connecting rod made of an elongated member extending perpendicularly to the surface of the fan-shaped tread plate at the center of the back surface of the fan-shaped tread plate, and a drive chain is connected to the lower end of the connecting rod. The drive chain is supported and guided by a guide roller array spirally provided around the cylinder, and includes a spiral passenger transport section provided around the cylinder, and a spiral passenger transport section constructed in parallel below the passenger transport section. A plurality of the step groups are driven up and down by the drive chain along a step circulation path composed of a return section having a shape of The part is provided with a chain sprocket that engages with the drive chain and rotates in a vertical plane, a support column is erected within the cylinder, a cross beam is extended horizontally from the support column, and a cross beam is provided at the tip of the cross beam. A guide roller for a spiral escalator, characterized in that an upper beam and a lower beam are provided in a vertical plane via a support column in the direction of the chain sprocket, and the guide roller row is provided on the upper beam and the lower beam. Column support device.