Reaction force measuring device, degradation diagnosing method and degradation diagnosing device

Patent metadata

Field	Value
Publication number	US-10605693-B2
Application number	US-201615738418-A
Country	US
Kind code	B2
Filing date	Jun 30, 2016
Priority date	Jun 30, 2015
Publication date	Mar 31, 2020
Grant date	Mar 31, 2020

Abstract

Provided is a reaction force measuring device comprising: a receiving portion 12; a movable portion 13 arranged in a manner spaced from the receiving portion 12 and capable of moving toward the receiving portion 12, the movable portion having a sandwiching space a formed between itself and the receiving portion 12, into which sandwiching space a hose H can be inserted from a direction crossing a longitudinal direction of the hose; and a measuring portion 14 configured to measure a reaction force of the hose H generated when the hose is pressed and applied with a load as the movable portion 13 moves toward the receiving portion 12.

First claim

The invention claimed is:

1. A reaction force measuring device comprising:
a receiving portion;
a movable portion arranged in a manner spaced from the receiving portion and capable of moving toward the receiving portion, the movable portion having a sandwiching space formed between itself and the receiving portion, into which sandwiching space a hose can be inserted from a direction crossing a longitudinal direction of the hose;
a measuring portion configured to measure a reaction force of the hose sandwiched in the sandwiching space generated when the hose is pressed and applied with a load as the movable portion moves toward the receiving portion; and
an opening adjacent the sandwiching space that permits insertion of the hose, and which remains open along a full length of the hose extending between the receiving portions and movable portion when the hose is pressed and applied with the load.

2. The reaction force measuring device according to claim 1 , wherein:
the receiving portion comprises at least one first guide, and
the movable portion comprises at least one second guide located, when the hose is sandwiched in the sandwiching space, on a side opposite to the receiving portion across the hose.

3. The reaction force measuring device according to claim 2 , wherein:
the movable portion is moved toward the receiving portion in a stepwise manner by a ratchet mechanism.

4. The reaction force measuring device according to claim 3 , further comprising a display portion configured to display a measurement result obtained by the measuring portion.

5. A degradation diagnosing method, comprising:
judging a degradation state of a hose as a diagnosis object by comparing a measurement result of the hose as the diagnosis object obtained with the reaction force measuring device according to claim 3 and accumulated tendency data, the accumulated tendency data being accumulated by respectively performing load applying tests under the same conditions on a plurality of hoses of the same type as, but with different total usage times from, the hose as the diagnosis object and obtaining tendency data indicative of a correlation of the total usage times and the results of the load applying tests.

6. A degradation diagnosing device, comprising:
the reaction force measuring device according to claim 3 ; and
a degradation judging portion configured to judge a degradation state of a hose as a diagnosis object by comparing a measurement result of the hose as the diagnosis object obtained with the reaction force measuring device and accumulated tendency data, the accumulated tendency data being accumulated by respectively performing load applying tests under the same conditions on a plurality of hoses of the same type as, but with different total usage times from, the hose as the diagnosis object and obtaining tendency data indicative of a correlation of the total usage times and results of the load applying tests.

7. The reaction force measuring device according to claim 2 , further comprising a display portion configured to display a measurement result obtained by the measuring portion.

8. A degradation diagnosing method, comprising:
judging a degradation state of a hose as a diagnosis object by comparing a measurement result of the hose as the diagnosis object obtained with the reaction force measuring device according to claim 7 and accumulated tendency data, the accumulated tendency data being accumulated by respectively performing load applying tests under the same conditions on a plurality of hoses of the same type as, but with different total usage times from, the hose as the diagnosis object and obtaining tendency data indicative of a correlation of the total usage times and the results of the load applying tests.

9. A degradation diagnosing method, comprising:
judging a degradation state of a hose as a diagnosis object by comparing a measurement result of the hose as the diagnosis object obtained with the reaction force measuring device according to claim 2 and accumulated tendency data, the accumulated tendency data being accumulated by respectively performing load applying tests under the same conditions on a plurality of hoses of the same type as, but with different total usage times from, the hose as the diagnosis object and obtaining tendency data indicative of a correlation of the total usage times and the results of the load applying tests.

10. A degradation diagnosing device, comprising:
the reaction force measuring device according to claim 2 ; and
a degradation judging portion configured to judge a degradation state of a hose as a diagnosis object by comparing a measurement result of the hose as the diagnosis object obtained with the reaction force measuring device and accumulated tendency data, the accumulated tendency data being accumulated by respectively performing load applying tests under the same conditions on a plurality of hoses of the same type as, but with different total usage times from, the hose as the diagnosis object and obtaining tendency data indicative of a correlation of the total usage times and results of the load applying tests.

11. The reaction force measuring device according to claim 1 , wherein:
the movable portion is moved toward the receiving portion in a stepwise manner by a ratchet mechanism.

12. The reaction force measuring device according to claim 11 , further comprising a display portion configured to display a measurement result obtained by the measuring portion.

13. A degradation diagnosing method, comprising:
judging a degradation state of a hose as a diagnosis object by comparing a measurement result of the hose as the diagnosis object obtained with the reaction force measuring device according to claim 11 and accumulated tendency data, the accumulated tendency data being accumulated by respectively performing load applying tests under the same conditions on a plurality of hoses of the same type as, but with different total usage times from, the hose as the diagnosis object and obtaining tendency data indicative of a correlation of the total usage times and the results of the load applying tests.

14. A degradation diagnosing device, comprising:
the reaction force measuring device according to claim 11 ; and
a degradation judging portion configured to judge a degradation state of a hose as a diagnosis object by comparing a measurement result of the hose as the diagnosis object obtained with the reaction force measuring device and accumulated tendency data, the accumulated tendency data being accumulated by respectively performing load applying tests under the same conditions on a plurality of hoses of the same type as, but with different total usage times from, the hose as the diagnosis object and obtaining tendency data indicative of a correlation of the total usage times and results of the load applying tests.

15. The reaction force measuring device according to claim 1 , further comprising a display portion configured to display a measurement result obtained by the measuring portion.

16. A degradation diagnosing method, comprising:
judging a degradation state of a hose as a diagnosis object by comparing a measurement result of the hose as the diagnosis object obtained with the reaction force measuring device according to claim 15 and accumulated tendency data, the accumulated tendency data being accumulated by respectively performing load applying tests under the same conditions on a plurality of hoses of the same type as, but with different total usage times from, the hose as the diagnosis object and obtaining tendency data indicative

Assignees

• Bridgestone Corp

Inventors

• Suzuki Koji
• Kuroda Taisuke

Classifications

• G01N3/20

  by applying steady bending forces (G01N3/26, G01N3/28 take precedence) · CPC title

• G01M5/0058 Primary

  of elongated objects, e.g. pipes, masts, towers or railways · CPC title

• G01L5/107

  for measuring a reaction force applied on an element disposed between two supports, e.g. on a plurality of rollers or gliders · CPC title

• G01L5/00

  Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes · CPC title

• G01L5/0028 Primary

  Force sensors associated with force applying means (G01L5/0052, G01L5/0057, G01L5/0061 take precedence) · CPC title