JPS557338A - Rotary type ditch-digger - Google Patents

Rotary type ditch-digger

Info

Publication number
JPS557338A
JPS557338A JP8002278A JP8002278A JPS557338A JP S557338 A JPS557338 A JP S557338A JP 8002278 A JP8002278 A JP 8002278A JP 8002278 A JP8002278 A JP 8002278A JP S557338 A JPS557338 A JP S557338A
Authority
JP
Japan
Prior art keywords
shaft
link
top link
length
digging
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
JP8002278A
Other languages
Japanese (ja)
Inventor
Miyoshi Suzue
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 JP8002278A priority Critical patent/JPS557338A/en
Publication of JPS557338A publication Critical patent/JPS557338A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To rationalize a digging work, by equalizing the length of a top link to that of a lower link and by allowing the length of the top link to be adjusted.
CONSTITUTION: The length of a lower link 10, which is supported at a lower hitch 9 and a transmission cage 12 by means of pins 11 and 15, is equalized to that of a top link 16, and the top link 16 is composed of a fitting-in shaft 19 being supported at a upper hitch 17 by means of pin 18 and a tube shaft 21 whose one end is supported at a frame 13 by means of a pin 20 and in which one end of the fitting- in shaft 19 is hookedly fitted. And thus, when digging after falling down the transmission cage 12, the fittingin shaft 19 is hookedly fitted in the tube shaft 21 so that the length of the top link 16 will be equal to that of the lower link 10, and when lifting up the transmission cage 12, the fitting-in shaft 19 is automatically unhooked from the tube shaft 21, and the change in a relative angle of the lower link 10 and the transmission cage 12 also stops at a given angle. Besides, the top link 16 is shortened, and an angle against ground changes corresponding to rising up and falling down of a digging unit B, and thus, digging can be rationally performed.
COPYRIGHT: (C)1980,JPO&Japio
JP8002278A 1978-06-29 1978-06-29 Rotary type ditch-digger Pending JPS557338A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8002278A JPS557338A (en) 1978-06-29 1978-06-29 Rotary type ditch-digger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8002278A JPS557338A (en) 1978-06-29 1978-06-29 Rotary type ditch-digger

Publications (1)

Publication Number Publication Date
JPS557338A true JPS557338A (en) 1980-01-19

Family

ID=13706653

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8002278A Pending JPS557338A (en) 1978-06-29 1978-06-29 Rotary type ditch-digger

Country Status (1)

Country Link
JP (1) JPS557338A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61277724A (en) * 1985-06-03 1986-12-08 バウァー　シュペツィアルティーフバウ　ゲーエムベーハー Fraise cutter for vertical groove milling groove

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61277724A (en) * 1985-06-03 1986-12-08 バウァー　シュペツィアルティーフバウ　ゲーエムベーハー Fraise cutter for vertical groove milling groove

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