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Plastic stair step of automatic staircase

A technology of escalators and plastics, applied in escalators, transportation and packaging, etc., can solve the problems of vibration and noise, complex structure, difficult manufacturing, etc., and achieve the effects of simplifying the structure, avoiding stress peaks, and reducing manufacturing costs

Active Publication Date: 2008-08-20
HITACHI ELEVATOR GUANGZHOU ESCALATOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this structure bears part of the load by the connecting bearing, the structure is still too complicated
Difficult to manufacture, and subjecting steel coupling bearings to bending deformation, the shaft becomes bulky and produces vibration and noise during operation

Method used

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  • Plastic stair step of automatic staircase
  • Plastic stair step of automatic staircase
  • Plastic stair step of automatic staircase

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] like image 3 As shown, the steps are mainly composed of three main parts such as a pedal 1, a kick plate 2 and two support plates 3 connecting the pedal and the kick plate on both sides. There are 108 standard pedal teeth 4 distributed in the middle of the upper surface of the pedal 1, that is, protruding ribs, and 30 round holes 5 with a diameter of 8 mm are distributed on the front end and both sides to install a safety boundary (not shown in the figure). The anti-slip groove 27 arranged at the rear end of the pedal 1 plays the role of anti-skid, and the boss 6 at the front end plays the role of strengthening the front end of the pedal 1 and its safety boundary.

[0019] The arc-shaped kick plate 2 adopts a staggered tooth design, and a wider kick plate tooth 26 is respectively arranged at both ends, see Figure 5 , 7 , 58 standard kick plate teeth 7 meshed with the pedal teeth are evenly distributed therebetween. Two ribs 8 and 18 connected to the arc surface are...

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Abstract

A plastic step for escalator is composed of pedal, rear plate, two lateral supporting platels for connecting pedal with rear plate and with front fastening seat connected to axle sleeve of primary wheel and rear through hole for the axle of secondary wheel, ribbed plates for forming cavity, and reinforcing rods in said cavity. Its advantages are high bending strength and light weight.

Description

technical field [0001] The present invention relates to steps of escalators, especially steps mainly made of plastic. Background technique [0002] The steps installed on the escalator are mainly composed of a pedal, a kick plate hanging downwards at the rear end of the pedal, and two support plates connecting the pedal and the kick plate on both sides. For a long time, steps have been manufactured by die-casting process or split assembly process. Most of the materials are aluminum alloy or stainless steel. This kind of step is relatively heavy, the manufacturing cost is high, and the production process will also cause adverse effects on the environment. Aluminum steps weigh 13-17 kg, stainless steel steps weigh about 22 kg, and plastic steps can be reduced to less than 10 kg. [0003] In some invention patents published successively in Germany and the United States since the 1990s, the steps are integrally manufactured with glass fiber-reinforced plastic materials accordin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B23/12
Inventor 李春雷
Owner HITACHI ELEVATOR GUANGZHOU ESCALATOR
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