JPS642879A - Impacting tool - Google Patents

Impacting tool

Info

Publication number
JPS642879A
JPS642879A JP15443787A JP15443787A JPS642879A JP S642879 A JPS642879 A JP S642879A JP 15443787 A JP15443787 A JP 15443787A JP 15443787 A JP15443787 A JP 15443787A JP S642879 A JPS642879 A JP S642879A
Authority
JP
Japan
Prior art keywords
bit
exhaust
duct
hole
wind
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
JP15443787A
Other languages
Japanese (ja)
Other versions
JPH012879A (en
JPH0763946B2 (en
Inventor
Mitsunobu Kubo
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.)
Shibaura Mechatronics Corp
Original Assignee
Shibaura Engineering Works 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 Shibaura Engineering Works Co Ltd filed Critical Shibaura Engineering Works Co Ltd
Priority to JP15443787A priority Critical patent/JPH0763946B2/en
Publication of JPH012879A publication Critical patent/JPH012879A/en
Publication of JPS642879A publication Critical patent/JPS642879A/en
Publication of JPH0763946B2 publication Critical patent/JPH0763946B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Percussive Tools And Related Accessories (AREA)

Abstract

PURPOSE: To effectively discharge the powder generated by a bit and to efficiently bore a hole with the bit by providing a duct for guiding the cooling exhaust wind of a motor to the vicinity of the bit.
CONSTITUTION: A motor 2 is driven to rotate a fan 4, and air is sucked into a frame 6 and exhausted to an exhaust port 5. The exhaust air is guided to the vicinity of a bit 1 from the exhaust port 5 via a duct 8. The exhaust wind is fed from one side of the bit 1 by this guidance, and the wind pressure applied to the other side is generated to accelerate the exhaust of powder from a bored hole together with a screw formed on the bit 1. When the hole with the prescribed depth is bored in concrete by the bit 1, the tip section of the duct 8 collides with the concrete to regulate the further advance of the bit 1.
COPYRIGHT: (C)1989,JPO
JP15443787A 1987-06-23 1987-06-23 Impact tool Expired - Fee Related JPH0763946B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15443787A JPH0763946B2 (en) 1987-06-23 1987-06-23 Impact tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15443787A JPH0763946B2 (en) 1987-06-23 1987-06-23 Impact tool

Publications (3)

Publication Number Publication Date
JPH012879A JPH012879A (en) 1989-01-06
JPS642879A true JPS642879A (en) 1989-01-06
JPH0763946B2 JPH0763946B2 (en) 1995-07-12

Family

ID=15584173

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15443787A Expired - Fee Related JPH0763946B2 (en) 1987-06-23 1987-06-23 Impact tool

Country Status (1)

Country Link
JP (1) JPH0763946B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009241244A (en) * 2008-03-31 2009-10-22 Hitachi Koki Co Ltd Boring tool
JP2012171038A (en) * 2011-02-21 2012-09-10 Hitachi Koki Co Ltd Drilling tool
KR20210004714A (en) * 2019-07-05 2021-01-13 (주) 대동이엔지 law noise derlling apparatus and rock crushing method utilizing the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009241244A (en) * 2008-03-31 2009-10-22 Hitachi Koki Co Ltd Boring tool
JP2012171038A (en) * 2011-02-21 2012-09-10 Hitachi Koki Co Ltd Drilling tool
KR20210004714A (en) * 2019-07-05 2021-01-13 (주) 대동이엔지 law noise derlling apparatus and rock crushing method utilizing the same

Also Published As

Publication number Publication date
JPH0763946B2 (en) 1995-07-12

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees