JPH10218539A - Footstep conveyor system of escalator for wheelchair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make such a stairway as being large in mass easily conveyable by constituting a conveyor system to install a hydraulic jack on a beam body to be supported on wheels astride both symmetrical handrails. SOLUTION: In order to carry in a stair 2 for wheelchair use from a platform of an escalator, first two metallic guide rails 5 are set up on both symmetrical handrails 4, and then a beam body 7 attached with two wheels 6, a manually operating hydraulic jack 8, two rope guide rollers 9, two lifting ropes 10, and two guide rods 11, is straddlingly mounted on these symmetrical guide rails 5. In the stair 2, each demarcation part at both sides is removed away so as to make it liftable, and each lifting bracket 15 locked by a thumbscrew in use of the tapped hole, is hooked on a tip hook at the other end of the rope 10. In addition, an operating handle 24 of the hydraulic jack 8 is reciprocatively operated and thereby a plunger 21 is uplifted and thus the stair 2 is lifted up. Further, it is carried up to the required position, and hydraulic pressure is opened, whereby the stair 2 is hung down.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for transporting a step of a passenger escalator, in particular, a step of a wheelchair escalator for transporting a step having a heavy mass, such as a wheelchair escalator, from an entrance to an installation position.

[0002]

2. Description of the Related Art FIG. 4 is a side view for explaining the structure of a main part of a general wheelchair passenger escalator.

In general, a wheelchair escalator, as shown in FIG. 4, has a normal step 1 and, for example, two wheelchair steps 2 connected endlessly to circulate and run. Is provided with a drive device (not shown) for moving the step 2a up and down.

[0004] The passenger escalator for a wheelchair constructed as described above drives the driving device to set the tread surface 2a of the step 2 to the same height position as the tread surface 1a of the step 1 located above, so that these tread surfaces can be moved. A relatively wide horizontal plane is formed by 1a and 2a, so that the wheelchair 13 can be mounted.

However, since the step 2a for a wheelchair is provided with a drive device, the step 2 for a wheelchair is about 150 kg in weight while the ordinary step 1 has a mass of about 25 kg. For this reason, when installing the step 2 for a wheelchair, it is necessary for the worker to lift it with four or five people and transport it from the entrance / exit to a predetermined installation position, which requires a large number of workers. In addition, there is a problem in that the safety is lowered due to a large number of workers carrying heavy objects in a place where the scaffold is relatively poor.

[0006] As a conventional technique to cope with such a problem, a technique for lifting a wheelchair step using a pantograph jack disclosed in Japanese Patent Application Laid-Open No. 7-277648 and a method disclosed in Japanese Patent Application Laid-Open No. 8-91750 are disclosed. A system for lifting a wheelchair step using a disclosed chain block has been proposed.

[0007]

However, in the latter conventional technique described above, the mass of the apparatus increases, and it takes time to install and transport the apparatus. In the former case, a large operation force is required, so that there is a problem that the work labor is increased.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a small and lightweight escalator for a wheelchair which can easily carry a step having a large mass and is easy to operate. To provide a step transport device.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to an escalator step transport device for carrying an escalator step including handrails on both left and right sides through a doorway. A guide rail symmetrically provided on the rail, wheels rolling on the guide rail, a beam supported by these wheels and straddling the left and right handrails, and one end of the beam is connected to the step. It is configured to include a rope to be connected, and a lifting device including a hydraulic jack that abuts on the other end of the rope and raises the rope as it rises.

[0010] Since the present invention constitutes the transport device in this way, it is possible to easily transport a step having a large mass, and it is possible to reduce the operating force by reducing the size and weight.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

Reference numeral 2 denotes a step for a wheelchair to be carried in from the entrance of the escalator, 4 denotes handrails provided on both left and right sides, 5 denotes a metal guide rail fitted to the handrail 4 from above, and 6 denotes a guide. The wheels roll on the rails 5, and two wheels 6 are provided for each guide rail 5 on one side. Reference numeral 7 denotes a beam that is supported on the left and right handrails 4 so as to be able to move forward and backward by wheels 6.
The beam 6 is rotatably attached to the beam 7.

Reference numeral 9 denotes a rope guide roller provided at the left and right positions above the beam 7, reference numeral 14 denotes a support member for rotatably supporting the rope guide roller 9, and reference numeral 10 denotes a wheelchair step 2 guided by the rope guide roller 9. And a pair of lifting ropes 10a and 10b. Reference numeral 11 denotes two guide rods provided on both sides of the beam 7, and the guide rods 11 abut inside the pair of handrails 5 to prevent the beam 7 from coming off.

Reference numeral 8 denotes a manually operated hydraulic jack disposed at the upper central portion of the beam 7, reference numeral 21 denotes a plunger, reference numeral 22 denotes a cylinder, and reference numeral 24 denotes a manual reciprocating operation handle.

Reference numeral 12 denotes a frame for rotatably supporting the rope guide roller 9 disposed on the plunger 21 of the hydraulic jack 8. Reference numeral 13 denotes an upper surface of the beam 7, and one end of a pair of lifting ropes 10. Are respectively fastened.

One end of the lifting rope 10 is fastened to the fastening member 13 and is turned by the rope guide roller 9 above the hydraulic jack 8 so that the lifting rope 10 passes under the rope guide roller 9 near the center and ends. It is suspended from a hole formed in the beam 7 through the upper side of the rope guide roller 9 near the part, and the other end of the tip is hung on a hanging bracket 15 described later. The other lifting ropes 10 are similarly symmetrically arranged.

As described above, according to the present embodiment, since the rope 10 is hung at a ratio of 2: 1 via the plurality of rope guide rollers 9, the plunger 2 of the hydraulic jack 8 is provided.
It can be seen that the lifting stroke of the step 2 is twice as large as the stroke of 1. Furthermore, if the number of the rope guide rollers 9 is increased and this ratio is increased, the force applied to the side of the large lifting stroke with a smaller stroke of the plunger 21 is increased. Therefore, by using a lifting device including the hydraulic jack 8 that can obtain a large force with a small operating force, a large lifting stroke can be obtained with a small and lightweight device and a small operating force.

A method for carrying the wheelchair step 2 from the entrance of the escalator in such a configuration will be described below. A metal guide rail 5 is set on the left and right hand rails 4, and wheels 6, a manually operated hydraulic jack 8, a rope guide roller 9, a lifting rope 10, and a guide rod 1 are provided.
The beam 7 to which 1 is attached is placed so as to straddle the left and right guide rails 5. The steps 2 carried at the entrance by a bogie (not shown) are detached from the demarcation portions (not shown) on both sides thereof so that the steps can be lifted, and the hanging bracket 15 which is butterfly-stopped using the screw holes is used for lifting. Hook each end hook on the other end of the rope 10. When the operating handle 24 of the hydraulic jack 8 is reciprocated, the plunger 21 is lifted and the step 2 is lifted. Also,
Carry it from the entrance to the required position and release the hydraulic pressure to suspend the steps 2.

It is obvious that this technique is effective for removing, moving and reattaching the steps 2 not only when installing a new escalator but also when maintaining, repairing or remodeling the aged escalator. .

[0020]

The present invention is configured as described above.
A step having a large mass can be easily transported without requiring a lot of manpower, a sufficient lifting stroke can be taken, and the step transport device can be made small, lightweight, and easy to operate.

[Brief description of the drawings]

FIG. 1 is a front view of a step transport device for an escalator for a wheelchair according to the present invention.

FIG. 2 is a side view of the step transport device of the escalator for a wheelchair of the present invention.

FIG. 3 is a plan view of a step transport device for an escalator for a wheelchair according to the present invention.

FIG. 4 is a side view illustrating a main part of a general wheelchair escalator.

[Explanation of symbols]

 2 Step for Wheelchair 4 Hand Rail 5 Metal Guide Rail 6 Wheel 7 Beam 8 Manually Operated Hydraulic Jack 9 Rope Guide Roller 10 Lifting Rope 11 Guide Rod 12 Frame 21 Plunger 22 Cylinder 24 Operation Handle

Claims (1)

[Claims] 1. An escalator step conveying device for carrying an escalator step including a handrail on both left and right sides through a doorway, wherein guide rails provided symmetrically on the handrail on both the left and right sides, and the guides are provided. Wheels rolling on rails, a beam supported by these wheels and straddling the handrails on the left and right sides, a rope connected at one end to the step, and abutting against the other end of the rope. And a lifting device comprising a hydraulic jack for lifting the rope as it rises.