JPS557328A - Ditch-digger - Google Patents

Ditch-digger

Info

Publication number
JPS557328A
JPS557328A JP7981878A JP7981878A JPS557328A JP S557328 A JPS557328 A JP S557328A JP 7981878 A JP7981878 A JP 7981878A JP 7981878 A JP7981878 A JP 7981878A JP S557328 A JPS557328 A JP S557328A
Authority
JP
Japan
Prior art keywords
ditch
screw
strip
shaped
digger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7981878A
Other languages
Japanese (ja)
Inventor
Yoshiharu Asano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP7981878A priority Critical patent/JPS557328A/en
Publication of JPS557328A publication Critical patent/JPS557328A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To provide a ditch-digger for having less trouble and high productivity.
CONSTITUTION: A screw-shaped guide strip 2 is attached in the direction toward a base end from a point part at the outside of a cylinder or a pole proper 1a. A screw- shaped ditch digging unit 3, which is composed of the screw-shaped strip 2 and digging- claws 9 being located at given intervals on the strip 2 and projecting toward an adjacent screw-shaped strip 2, is rotated to dig a ditch 10.
COPYRIGHT: (C)1980,JPO&Japio
JP7981878A 1978-07-03 1978-07-03 Ditch-digger Pending JPS557328A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7981878A JPS557328A (en) 1978-07-03 1978-07-03 Ditch-digger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7981878A JPS557328A (en) 1978-07-03 1978-07-03 Ditch-digger

Publications (1)

Publication Number Publication Date
JPS557328A true JPS557328A (en) 1980-01-19

Family

ID=13700777

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7981878A Pending JPS557328A (en) 1978-07-03 1978-07-03 Ditch-digger

Country Status (1)

Country Link
JP (1) JPS557328A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57187434A (en) * 1981-05-15 1982-11-18 Kobashi Kogyo Kk Trench excavator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57187434A (en) * 1981-05-15 1982-11-18 Kobashi Kogyo Kk Trench excavator
JPH0138930B2 (en) * 1981-05-15 1989-08-17 Kobashi Kogyo Kk

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