JP2002020068A - lift device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide an elevating device capable of connecting between two points having a height difference with a small installation area. An endless transport belt 31 having a longitudinal member L extending in the belt moving direction at the center in the width direction is provided, and a guide roller 32 in contact with left and right edges of the transport belt 31 and a lower surface of the transport belt 31 are contacted. The support rollers 33 and 34 are arranged so that the conveyor belt 31 can be spirally guided from the lower getting on / off position to the upper getting on / off position to form the up-side conveying path 37 and contact the left and right edges of the conveying belt 31. Guide rollers 32 and supporting rollers 33 and 34 which are in contact with the lower surface of the conveyor belt 31 are arranged so that the conveyor belt 31 can be spirally guided from the upper getting on / off position to the lower getting on / off position, thereby forming the downward conveying path 38. Then, the transport belt 31 is sent out in the longitudinal direction and circulates by the drive mechanism 39 provided at the lower getting on / off position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting device having a spirally continuous transport path.

[0002]

2. Description of the Related Art FIG. 8 shows an example of a conventional moving sidewalk. The moving sidewalk includes an entrance step 101 provided at an upstream end in a user transport direction and a exit provided at a downstream end in a user transport direction. Step 102, an upstream pulley 103 arranged below the entrance step 101, and an exit step 10
2, a downstream pulley 104, and an endless transport belt 105 wound around the pulleys 103, 104 and forming a continuous sidewalk between the steps 101, 102. .

[0003] A plurality of rollers 107 are provided at equal intervals between the pulleys 103 and 104 to support the conveyor belt 105 located on each of the carrier-side moving path and the return-side moving path from below. ing.

In this moving sidewalk, both pulleys 103, 1 are moved so that the carrier surface of the conveyor belt 105 moves at a constant speed from the entrance step 101 to the exit step 102.
04 rotates the transport belt 105.

[0005] Further, on the left and right sides of the moving path of the conveyor belt 105 on the carrier side, the height of the conveying belt 1 is set over its entire length.
There is provided a balustrade (not shown) that is set to be about the waist of a user who rides on the 05. The balustrade has a carrier-side moving route along the upper surface of the balustrade and a return-side moving route located in the balustrade. The endless handrail belt 106 is
It is provided so as to orbit at the same speed as 05.

The above-mentioned transport belt 105 has a structure as shown in FIG.

That is, the transport belt 105 includes a first flexible layer 11 in which grooves G extending in the belt moving direction are formed on one surface at equal intervals in the belt width direction, and a reinforcing member T extending in the belt width direction. A second flexible body 11 which is provided at equal intervals in the belt moving direction and has one surface closely contacted with the other surface of the first flexible layer 11;
Flexible layer 12 and a longitudinal member L extending in the belt moving direction are provided at equal intervals in the belt width direction, and one surface is brought into close contact with the other surface of the second flexible layer 12. A fourth flexible layer 14 in which a flexible layer 13 and a reinforcing material T extending in the belt width direction are provided at equal intervals in the belt moving direction and one surface of which is in close contact with the other surface of the third flexible layer 13 And

The above-mentioned constituent materials of the flexible layers 11, 12, 13, and 14 include the transfer belt 105 turning from the carrier side movement path to the return side movement path, or the return side movement path to the carrier side movement path. A rubber-based material is used so as to ensure flexibility when turning.

The width, interval, and depth of the groove G are determined by the above-described entrance step 101 and exit step 10.
2 are set in accordance with the shape of the comb teeth (not shown) provided in each of them, and the comb teeth and the groove G are fitted to each other so that the foreign matter is prevented from being caught by the transport belt 105. ing.

Further, a steel wire is used for the reinforcing member T and the longitudinal member L, and the reinforcing member T suppresses downward bending of the central portion with respect to the edge portion in the belt width direction, and the longitudinal member is used. The material L maintains the tensile strength in the belt circling direction.

[0011] In recent years, from the viewpoint of barrier-free, it has been studied to apply the moving sidewalk as described above to an ascent / descent means instead of a pedestrian bridge or stairs in a station yard.

[0012]

However, when a moving sidewalk as shown in FIG. 8 is installed between two points having a height difference in consideration of the riding of a wheelchair user, the conveyor belt 105 is required.
It is necessary to set the inclination angle of the sidewalk to be gentler than the road surface angle in the wheelchair stopping performance test. For this reason, as the height difference between the entrance step 101 and the exit step 102 becomes larger, the installation length of the moving sidewalk becomes longer. Has to expand.

The present invention has been made in view of the above circumstances, and has as its object to provide an elevating device which can connect two points having a height difference with a small installation area.

[0014]

According to a first aspect of the present invention, there is provided an elevating apparatus, comprising a plurality of longitudinal members extending in a belt moving direction at a central portion in a width direction. A plurality of guide rollers having a belt and rotatably in contact with the left and right edges of the conveyor belt and supporting rollers in contact with the lower surface of the conveyor belt, such that the conveyor belt can be spirally guided from a lower getting on / off position to an upper getting on / off position. To form an ascending transport path, and move a plurality of guide rollers rotatably in contact with the left and right edges of the transport belt and support rollers in contact with the lower surface of the transport belt from the upper loading position to the lower loading position. A drive mechanism capable of feeding the transport belt in the longitudinal direction is provided at at least one of the lower getting on / off position and the upper getting on / off position by arranging so as to be able to be guided spirally and forming a downward transport path. To have.

Further, in the lifting device according to the second aspect of the present invention, the outer flexible layer capable of contacting the object to be conveyed to one surface;
A reinforcing material extending in the belt width direction is arranged in the belt moving direction, and the intermediate flexible layer having one surface adhered to the other surface of the outer flexible layer, and a plurality of longitudinal members extending in the belt moving direction are provided. And a plurality of guide rollers having an endless transport belt having an inner flexible layer closely attached to the widthwise central portion of the other surface of the intermediate flexible layer, and rotatably contacting left and right edges of the transport belt. And the support roller that contacts the lower surface of the conveyor belt,
The transport belt is arranged so that it can be spirally guided from the lower getting on / off position to the upper getting on / off position to form an ascending transport path,
A plurality of guide rollers rotatably in contact with the left and right edges of the conveyor belt and support rollers in contact with the lower surface of the conveyor belt are arranged so that the conveyor belt can be spirally guided from the upper getting on / off position to the lower getting on / off position. A drive mechanism that forms a side conveyance path and that can feed the conveyance belt in the longitudinal direction is provided at at least one of the lower getting on / off position and the upper getting on / off position.

In the conveying apparatus according to the first aspect of the present invention, a longitudinal member for maintaining the tensile strength in the circumferential direction of the belt is provided at the center in the width direction of the conveying belt, and is disposed on the left and right sides of the conveying belt. The transport belt is spirally guided between a lower getting on / off position and an upper getting on / off position by a plurality of guide rollers and support rollers.

Further, in the lifting device according to the second aspect of the present invention, the longitudinal member for maintaining the tensile strength in the circumferential direction of the belt is provided on the outer side and the inner side located at the middle of the intermediate flexible layer in the width direction. The flexible belt is provided inside to secure the flexibility of the transport belt to the left and right, and the transport belt is spirally guided between a lower getting on / off position and an upper getting on / off position by a plurality of guide rollers and support rollers. I do.

[0018]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 7 show an embodiment of a lifting apparatus according to the present invention, in which the same reference numerals as those in FIGS. 8 and 9 denote the same components.

The lifting device includes an endless transport belt 31.
A plurality of guide rollers 32 rotatably in contact with left and right edges of the transport belt 31; a plurality of first support rollers 33 and a second support roller 34 in contact with the lower surface of the transport belt 31; A first step 35a, 35b provided at the getting on / off position; a second step 36a, 36b provided at the upper getting on / off position;
And a driving mechanism 39 for sending the motor in the longitudinal direction to make it go around.

The transport belt 31 has a first flexible layer 21 in which grooves G extending in the belt moving direction are formed on one surface at equal intervals in the belt width direction, and a reinforcing material T extending in the belt width direction is formed in the belt moving direction. A second flexible layer 22 which is provided at equal intervals and has one surface in close contact with the other surface of the first flexible layer 21;
A third flexible layer 23 in which reinforcing members T extending in the belt width direction are provided at equal intervals in the belt moving direction and one surface of which is in close contact with the other surface of the second flexible layer 22; And a fourth flexible layer 24 having one surface adhered to the widthwise center of the other surface of the third flexible layer 23 (FIG. 6). And FIG. 7).

The flexible layers 21, 22, 23 and 24 are made of a rubber-based material.
For the longitudinal member L, a steel wire is used.

The plurality of longitudinal members L provided in the central portion of the cross section of the fourth flexible layer 24 have a state in which single wires are juxtaposed, a state in which single wires are bundled with a binding wire, or a state in which single wires are twisted. Any of them may be used.

In the conveyor belt 31, the reinforcing member T suppresses the downward bending of the central portion with respect to the edge in the belt width direction, and the longitudinal member L maintains the tensile strength in the belt circling direction. .

Further, the longitudinal member L is formed of each of the flexible layers 21, 22, 2
3, the belt is secured in the fourth flexible layer 24 located at the center in the width direction, so that the belt can be secured to the left and right flexibly.
This makes it possible to move the transport belt in a curved shape.

The required number of guide rollers 32 and support rollers 33 and 34 are transported by the conveyor belt 31 from immediately below the first step 35a to the second step 36a.
Is pivotally supported by the support frame A so as to be able to be spirally guided directly under the belt, and forms an upward transport path 37. Similarly, a required number of guide rollers 32 and support rollers 33 and 34 are connected to the transport belt. 31 is pivotally supported by the support frame B so that it can be spirally guided from immediately below the second getting on / off step 36b to just below the first getting on / off step 35b.
(See FIGS. 1 and 2).

The first support roller 33 is used to transport the conveyor belt 31.
Are arranged at predetermined intervals so as to abut against the fourth flexible layer 24 from below (see FIG. 2), and the shape of the first support roller 33 is It is formed in a drum shape so as to suppress the movement to the left and right (see FIG. 5).

The second support rollers 34 are formed in a short cylindrical shape and are arranged at predetermined intervals so as to contact from below the right and left edge portions of the third flexible layer 23 of the conveyor belt 31. (See FIGS. 2 and 5).

The driving mechanism 39 controls the first step 3
It is installed in a pit 46 provided below between 5a and 35b.

The drive mechanism 39 includes three bend pulleys 40, 41, and 42 which are arranged in parallel and horizontally from the upstream side to the downstream side in the moving direction of the transport belt 31;
A drive pulley 43 disposed below and parallel to the bend pulleys 40 and 41, and bend pulleys 41 and 4;
2, a take-up pulley 44 disposed in parallel with these, a drive pulley 43 and a bend pulley 41.
Between the guide pulley 45 and the guide pulley 45
These bend pulleys 40, 41, 42, drive pulley 43, take-up pulley 44, guide pulley 4
A transport belt 31 is wound around 5.

Each of the bend pulleys 40, 41, 42 abuts against the third flexible layer 23 of the conveyor belt 31 from below and suppresses the displacement of the fourth flexible layer 24 to the left and right.
And a small-diameter portion interconnecting the large-diameter portions.

That is, an initial tension is applied to the transport belt 31 by the take-up pulley 44, and the transport belt 31 is pressed against the driving pulley 43.

The drive pulley 43 has a motor (not shown)
When the motor is operated, the conveyor belt 31 circulates in the order of the lower getting on / off position, the ascending conveying route 37, the upper getting on / off position, the descending conveying route 38, and the lower getting on / off position. I do.

Further, the first getting on / off steps 35a, 35
b, the second steps 36a, 36b are provided with comb teeth which fit into the grooves G of the conveyor belt 31 and prevent foreign substances from being caught.

A balustrade 47 whose height is set to about the waist of a user who rides on the transport belt 31 is provided on the left and right sides of the upward transport path 37 and the downward transport path 38. On the balustrade 47, an endless handrail belt (not shown) having a carrier-side moving route along the upper surface of the balustrade 47 and a return-side moving route located inside the balustrade 47,
It is provided so as to circulate at a constant angular velocity with the conveyor belt 31.

In the lifting device shown in FIGS. 1 to 7, when the driving pulley 43 is rotated by the motor,
1 spirally rises from below the first getting on / off step 35a at the lower getting on / off position along the ascending transport path 37 and passes below the second getting on / off steps 36a, 36b at the upper getting on / off position. Then, it descends helically along the down-side transport path 38 and goes around the path under the first getting-on / off step 35b at the lower getting-on / off position.

At this time, the transport belt 31 is supported by a first support roller 33 and a second support roller 34 which rotate while being in contact with the transport belt 31 from below. Are guided spirally by a guide roller 32 which rotates while contacting the surface.

As described above, in the elevating device shown in FIGS. 1 to 7, the longitudinal member L for maintaining the tensile strength in the belt circling direction is provided at the fourth center located in the widthwise center of the conveyor belt 31. The transport belt 31 is secured in the flexible layer 24 so that the transport belt 31 can be bent to the left and right. The transport belt 31 is moved by a plurality of guide rollers 32 and support rollers 33 and 34.
Guided spirally between the lower getting on / off position and the upper getting on / off position, it is possible to connect between two points with a small installation area and a difference in height with a gentler slope than the road surface angle in the wheelchair stopping performance test become.

Therefore, the lifting device shown in FIGS.
If applied as an elevating means instead of a pedestrian bridge or stairs in a station yard, a wheelchair user or the elderly can easily move between two points having a height difference.

The lifting device according to the present invention is not limited to the above-described embodiment. For example, a driving mechanism may be provided at the upper getting on / off position instead of the lower getting on / off position, or A drive mechanism is provided at each of the upper and lower getting on / off positions, this lifting / lowering device is applied to a means for transporting articles, and of course, various changes can be made without departing from the gist of the present invention. is there.

[0041]

As described above, according to the lifting device of the present invention, various excellent effects as described below can be obtained.

(1) A longitudinal member for maintaining the tensile strength in the circumferential direction of the belt is provided at the center in the width direction of the conveyor belt to secure the flexibility of the conveyor belt to the left and right. Since a plurality of guide rollers and support rollers guide in a spiral manner between a lower getting on / off position and an upper getting on / off position, a road surface angle in a wheelchair stopping performance test between two points having a small installation area and a height difference. Can be tied with a gentler slope.

(2) Therefore, if this elevating device is applied as an elevating means instead of a pedestrian bridge or a stair in a station yard, a wheelchair user or the elderly can easily move between two points having a height difference. Become.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of an embodiment of a lifting device according to the present invention.

FIG. 2 is a plan view of the lifting device shown in FIG.

FIG. 3 is a side view of a driving mechanism related to FIG. 1;

FIG. 4 is a front view of the bend pulley associated with FIG. 1;

FIG. 5 is a layout diagram of guide rollers and support rollers related to FIG. 1;

FIG. 6 is a cross-sectional view of the transport belt related to FIG. 1;

FIG. 7 is a partially cutaway perspective view of the transport belt related to FIG. 1;

FIG. 8 is a perspective view showing an example of a conventional moving sidewalk.

FIG. 9 is a partially cutaway perspective view of the conveyance belt related to FIG. 8;

[Explanation of symbols]

 21 first flexible layer (outer flexible layer) 22 second flexible layer (intermediate flexible layer) 23 third flexible layer (intermediate flexible layer) 24 fourth flexible layer (inner flexible layer) Layer) 31 Conveyor belt 32 Guide roller 33 First support roller 34 Second support roller 35 First climbing step 36 Second climbing step 37 Upward transport path 38 Downward transport path 39 Drive mechanism L Vertical member

Claims (2)

[Claims] An endless transport belt having a plurality of longitudinal members extending in a belt moving direction is provided at a center portion in a width direction, and a plurality of guide rollers and a plurality of guide rollers rotatably contacting left and right edges of the transport belt. A plurality of support rollers that are in contact with the lower surface are arranged so that the transport belt can be spirally guided from the lower getting on / off position to the upper getting on / off position to form an upward transport path, and rotatably contact the left and right edges of the transport belt. A guide roller and a support roller that is in contact with the lower surface of the transport belt are arranged so that the transport belt can be spirally guided from the upper getting on / off position to the lower getting on / off position to form a downward transport path, and the lower getting on / off position or A lifting mechanism provided at at least one of the upper getting on / off positions with a drive mechanism capable of sending out a transport belt in a longitudinal direction thereof. 2. An outer flexible layer on one side of which an object to be conveyed can come into contact, and a reinforcing member extending in a belt width direction are arranged in the belt moving direction, and one side is provided on the other side of the outer flexible layer. An endless endless layer having an intermediate flexible layer adhered thereto and an inner flexible layer in which a plurality of longitudinal members extending in the belt moving direction are provided and which are closely adhered to a widthwise central portion of the other surface of the intermediate flexible layer. A plurality of guide rollers having a conveyor belt and rotatably contacting the left and right edges of the conveyor belt and supporting rollers contacting the lower surface of the conveyor belt, the conveyor belt can be spirally guided from a lower getting on / off position to an upper getting on / off position. A plurality of guide rollers that rotatably contact the left and right edges of the conveyor belt and support rollers that contact the lower surface of the conveyor belt are arranged such that the upper conveyor path is formed, and the upper and lower positions of the conveyor belt from the upper and lower positions. You can be guided in a spiral And a drive mechanism capable of feeding the conveyor belt in the longitudinal direction at at least one of the lower getting on / off position and the upper getting on / off position.