JPS6462593A - Drill - Google Patents

Drill

Info

Publication number
JPS6462593A
JPS6462593A JP21788387A JP21788387A JPS6462593A JP S6462593 A JPS6462593 A JP S6462593A JP 21788387 A JP21788387 A JP 21788387A JP 21788387 A JP21788387 A JP 21788387A JP S6462593 A JPS6462593 A JP S6462593A
Authority
JP
Japan
Prior art keywords
rod
transmitted
piston
causing
rotation
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.)
Granted
Application number
JP21788387A
Other languages
Japanese (ja)
Other versions
JPH0799077B2 (en
Inventor
Satoru Nishioka
Motoyuki Takasu
Keiji Hiroi
Koji Tei
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.)
Tokyu Construction Co Ltd
Original Assignee
Tokyu Construction Co Ltd
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 Tokyu Construction Co Ltd filed Critical Tokyu Construction Co Ltd
Priority to JP62217883A priority Critical patent/JPH0799077B2/en
Publication of JPS6462593A publication Critical patent/JPS6462593A/en
Publication of JPH0799077B2 publication Critical patent/JPH0799077B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Earth Drilling (AREA)

Abstract

PURPOSE: To facilitate the invasion and extraction of a casing by executing boring while causing a easing to rotate, which is provided around a rod having a boring bit at its tip end. CONSTITUTION: When compressed air is introduced in a compressed air chamber 3, a piston 2 is pushed out so as to hit the bottom of a rod 4, and then the hitting force is transmitted to a bit 4a at the tip end via the rod 4. The piston 2 rotates by a screw shaft 5, and the rotation force is transmitted to the rod 4 is transmitted to the rod 4 via an operation sleeve 6, thereby causing a slight rotation of the piston 4a. Also, a rotation of the operation sleeve 6 is transmitted to a easing 8 as well via a coupling 7; thus, causing a slight rotation of the casing 8.
JP62217883A 1987-09-02 1987-09-02 Punching device Expired - Lifetime JPH0799077B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62217883A JPH0799077B2 (en) 1987-09-02 1987-09-02 Punching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62217883A JPH0799077B2 (en) 1987-09-02 1987-09-02 Punching device

Publications (2)

Publication Number Publication Date
JPS6462593A true JPS6462593A (en) 1989-03-09
JPH0799077B2 JPH0799077B2 (en) 1995-10-25

Family

ID=16711263

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62217883A Expired - Lifetime JPH0799077B2 (en) 1987-09-02 1987-09-02 Punching device

Country Status (1)

Country Link
JP (1) JPH0799077B2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51128803A (en) * 1975-05-02 1976-11-10 Furukawa Kogyo Kk Drilling machine suitable for drilling hole in weak ground
JPS61116889U (en) * 1984-12-29 1986-07-23

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51128803A (en) * 1975-05-02 1976-11-10 Furukawa Kogyo Kk Drilling machine suitable for drilling hole in weak ground
JPS61116889U (en) * 1984-12-29 1986-07-23

Also Published As

Publication number Publication date
JPH0799077B2 (en) 1995-10-25

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