Title:
AUTOMATIC MEASURING RECORDING TYPE DYNAMIC PENETRATION TESTER
Document Type and Number:
Japanese Patent JP3809620
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve the efficiency of data processing by slowly lowering an automatic measuring recording device installed to a guide pole in a time- difference follow-up manner and relaxing an impact at the time of penetration.
SOLUTION: When an automatic recording device 9 is mounted on a guide pole, a rack gear 10 is attached to the guide pole 1, a rotary encoder gear 11 and a rotary resistance type gear 12 are set up, and large and small two guide rollers 13, 14 with rotary resistors are annexed from the reverse side and the automatic recording device 9 is lowered gradually. The automatic recording device 9 is inserted to the guide pole 1 and engaged with the rack gear 10, and placed on a guide ring arm 4 and a power supply is turned on. When a falling weight 6 is dropped, a penetration rod 3 is penetrated and the guide ring 4 is brought down, the automatic recording device 9 is slowly lowered automatically on the guide pole 1. When the automatic recording device 9 is dropped, data are read, and can be recorded on an internal memory.
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Inventors:
Shuzo Hasegawa
Masanobu Ogushi
Shinichi Nukata
Masanobu Ogushi
Shinichi Nukata
Application Number:
JP30120596A
Publication Date:
August 16, 2006
Filing Date:
October 25, 1996
Export Citation:
Assignee:
Geo Green Tech Co., Ltd.
International Classes:
E02D1/02; G01N3/40; (IPC1-7): E02D1/02; G01N3/40
Domestic Patent References:
| JP58041110A |
Attorney, Agent or Firm:
Narumi Yokomizo