Method and apparatus for inspecting resin shock absorber
AssigneeMitsubishi Electric Corporation
InventorsShinya Naito, Hisashi Furuzawa, Michio Murai
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Abstract
An inspection method and an inspection apparatus capable of readily determining the necessity of replacement of a resin shock absorber at an elevator inspection location without using a car of a rated weight. First, an indenter is pressed into a resin shock absorber for an elevator. A load of pressing the indenter into the resin shock absorber is released. A physical property value indicative of a repulsive force that causes the indenter to bounce from the resin shock absorber by releasing the load is measured. The necessity of replacement of the resin shock absorber is determined by comparing a result of the physical property value obtained by measuring the repulsive force with a reference value prepared in advance.
Claims16
A method for inspecting a resin shock absorber, comprising the steps of:
- pressing an indenter into a resin shock absorber for an elevator;
- releasing a load of pressing the indenter into the resin shock absorber;
- measuring a physical property value indicative of a repulsive force that causes the indenter to bounce from the resin shock absorber by the step of releasing a load;
- and
- determining necessity of replacement of the resin shock absorber by comparing a result of the physical property value obtained by the step of measuring a physical property with a reference value prepared in advance.
An apparatus for inspecting a resin shock absorber, comprising:
- an apparatus body including a fixing mechanism for fixing a relative position of a resin shock absorber for an elevator;
- a load applying mechanism capable of applying a load of pressing an indenter into the resin shock absorber, and releasing the load;
- and
- a measuring mechanism to measure a physical property value indicative of a repulsive force that causes the indenter to bounce from the resin shock absorber upon release of the load,
- wherein the apparatus body includes
- a base on which the resin shock absorber is placed,
- a strut fixed to the base and extending along a direction in which the indenter bounces, and
- a linear guide fixed to the strut and extending in a horizontal direction intersecting the direction in which the indenter bounces, the linear guide being able to move the load applying mechanism in the horizontal direction, wherein
- the indenter can be pressed into the resin shock absorber by the load applying mechanism moving along the strut, and
- the indenter can be released from the resin shock absorber by the load applying mechanism moving in the direction in which the linear guide extends.
Dependencies are inferred from the claim text.