IT1203019B - Pneumatic drill with crank driven eccentric - has annular fitting with twin spiral spring surround housing - Google Patents

Pneumatic drill with crank driven eccentric - has annular fitting with twin spiral spring surround housing

Info

Publication number
IT1203019B
IT1203019B IT2468176A IT2468176A IT1203019B IT 1203019 B IT1203019 B IT 1203019B IT 2468176 A IT2468176 A IT 2468176A IT 2468176 A IT2468176 A IT 2468176A IT 1203019 B IT1203019 B IT 1203019B
Authority
IT
Italy
Prior art keywords
spiral spring
annular fitting
pneumatic drill
crank driven
driven eccentric
Prior art date
Application number
IT2468176A
Other languages
Italian (it)
Original Assignee
Yamada Juki Kk
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 Yamada Juki Kk filed Critical Yamada Juki Kk
Priority to IT2468176A priority Critical patent/IT1203019B/en
Application granted granted Critical
Publication of IT1203019B publication Critical patent/IT1203019B/en

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Abstract

A pneumatic drill for concrete breaking etc. with an outer cylinder and a crank driven piston, has the outer cylinder (12) constructed with a lower cover (15) with an axial hole (18) which is used as a guide for the shaft (17) of the impacting tool (16). The impacting tool (16) protrudes from the device and has an annular fitting (31, 32) with a spiral spring (43) between this (31, 32) and the lower cover (15). An outer sliding housing (13) is attached around the lower section of the device and contains an outer spiral spring (42) which lies outside the inner spring (43) resting on the annular fitting (31, 32).
IT2468176A 1976-06-24 1976-06-24 Pneumatic drill with crank driven eccentric - has annular fitting with twin spiral spring surround housing IT1203019B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT2468176A IT1203019B (en) 1976-06-24 1976-06-24 Pneumatic drill with crank driven eccentric - has annular fitting with twin spiral spring surround housing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2468176A IT1203019B (en) 1976-06-24 1976-06-24 Pneumatic drill with crank driven eccentric - has annular fitting with twin spiral spring surround housing

Publications (1)

Publication Number Publication Date
IT1203019B true IT1203019B (en) 1989-02-15

Family

ID=11214364

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2468176A IT1203019B (en) 1976-06-24 1976-06-24 Pneumatic drill with crank driven eccentric - has annular fitting with twin spiral spring surround housing

Country Status (1)

Country Link
IT (1) IT1203019B (en)

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