Title:
TESTING EQUIPMENT
Document Type and Number:
Japanese Patent JP2015229895
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide testing equipment that uses a falling weight that efficiently prevents re-striking of a test object by the weight.SOLUTION: Test equipment is used in a test that causes a weight to fall and strike a test object, and includes a halting device connected to the weight and a rod member inserted into the halting device in a way that allows relative movement in the vertical direction with the halting device. The halting device is configured so as to generate a frictional force between the device and the rod member in the course of the relative movement. The frictional force generated when the halting device falls relative to the rod member is set to be greater than the frictional force generated when the halting device rises relative to the rod member, and also to be sufficient to stop falling of the weight.
Inventors:
SUGAWARA TAKAO
KITAOKA SHIGEKI
SHIMIZU SHIGEJIRO
KUBO YUTAKA
KITAOKA SHIGEKI
SHIMIZU SHIGEJIRO
KUBO YUTAKA
Application Number:
JP2014117422A
Publication Date:
December 21, 2015
Filing Date:
June 06, 2014
Export Citation:
Assignee:
PLAN DO SOIL KK
KS CONSULTANT CO LTD
SYSTEM KEISOKU KK
SKY WORKS CO LTD
KS CONSULTANT CO LTD
SYSTEM KEISOKU KK
SKY WORKS CO LTD
International Classes:
E02D1/00; G01N3/30
Domestic Patent References:
| JP2009249858A | 2009-10-29 | |||
| JP2006342579A | 2006-12-21 | |||
| JP2009249858A | 2009-10-29 | |||
| JP2006342579A | 2006-12-21 | |||
| JP2014012983A | 2014-01-23 | |||
| JPS5956235U | 1984-04-12 | |||
| JP2014012983A | 2014-01-23 | |||
| JPS5956235U | 1984-04-12 |
Foreign References:
| US5457984A | 1995-10-17 | |||
| US5457984A | 1995-10-17 |
Attorney, Agent or Firm:
Tomimasa Konishi
Tomoko Nakamura
Tomoko Nakamura