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Chain extension detection device of passenger conveyor

A detection device and chain technology, which is applied in transportation, packaging, escalators, etc., can solve the problems of increased workload for operators and difficulty in real-time measurement of chain elongation

Pending Publication Date: 2022-02-18
TOSHIBA ELEVATOR KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to measure the elongation of the chain in real time
[0005] In addition, the maintenance work of escalators in commercial facilities is often carried out in the middle of the night when the store is closed, which increases the workload on operators.

Method used

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  • Chain extension detection device of passenger conveyor
  • Chain extension detection device of passenger conveyor
  • Chain extension detection device of passenger conveyor

Examples

Experimental program
Comparison scheme
Effect test

no. 2 Embodiment approach

[0077] Next, a second embodiment will be described.

[0078] In the above-mentioned first embodiment, the configuration in which the maintenance worker measures the amount of elongation of the chain is adopted, but this second embodiment is different in that a configuration in which the amount of elongation of the chain is automatically measured is adopted.

[0079] Figure 4 It is a schematic configuration diagram of the chain elongation / cutting detection device of the second embodiment.

[0080] exist Figure 4 in, for with figure 2 The same parts as in the first embodiment are given the same symbols.

[0081] The chain elongation / cutting detection device of the second embodiment differs from the first embodiment in that a distance sensor 31 for measuring a distance L11 to the front-end side end surface of the bolt member 13 is provided.

[0082] According to this configuration, the distance L11 to the front end side end surface of the bolt member 13 can be measured at ...

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PUM

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Abstract

The invention relates to a chain extension detection device of a passenger conveyor, which can accurately detect the extension of a chain. The chain elongation detection device includes: a support member that rotatably supports one of a pair of sprockets on which a chain to be subjected to elongation detection is erected, and that supports the one of the sprockets so that the distance between the one of the sprockets and the other of the sprockets can be changed; a biasing member that biases in the direction in which the tension of the chain between the pair of sprockets increases via the support member; and a chain elongation detection part that outputs an elongation detection signal indicating that the elongation of the chain exceeds a predetermined elongation when the amount of movement of the support member in the direction from a predetermined reference position exceeds a predetermined amount of movement.

Description

[0001] This application is based on Japanese Patent Application No. 2020-129368 (filing date: July 30, 2020), and enjoys the priority of this application. This application incorporates the entire content of this application by reference. technical field [0002] Embodiments of the present invention relate to a chain elongation detection device of a passenger conveyor. Background technique [0003] Conventionally, in passenger conveyors, a plurality of steps are connected endlessly by a step chain. Then, the step chain is driven by the drive of the motor connected via the sprocket, the drive chain, and the speed reducer, and the steps are rotated (circulated) and moved. In addition, the moving handrail is driven by the handrail drive chain. These chains elongate due to years of use. In this way, when the chain elongates (slacks), the engagement between the chain and the sprockets deteriorates. [0004] Therefore, it is necessary to carry out maintenance and inspection wor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B21/04B66B23/02B66B25/00B66B29/00
CPCB66B21/04B66B23/024B66B25/006B66B29/00
Inventor 吉田干
Owner TOSHIBA ELEVATOR KK