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1. (JP2005246561) VIBRATING DRILL

Office : Japan
Application Number: 2004061806 Application Date: 05.03.2004
Publication Number: 2005246561 Publication Date: 15.09.2005
Grant Number: 4061595 Grant Date: 19.03.2008
Publication Kind : B2
IPC:
B23B 45/16
B25D 16/0
B28D 1/14
B28D 1/26
E02D 7/2
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B
TURNING; BORING
45
Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
16
with superimposed percussive action
B PERFORMING OPERATIONS; TRANSPORTING
25
HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; HANDLES FOR HAND IMPLEMENTS; WORKSHOP EQUIPMENT; MANIPULATORS
D
PERCUSSIVE TOOLS
16
Portable percussive machines with superimposed rotation
B PERFORMING OPERATIONS; TRANSPORTING
28
WORKING CEMENT, CLAY, OR STONE
D
WORKING STONE OR STONE-LIKE MATERIALS
1
Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhere; Machines, devices, tools therefor
14
by boring or drilling
B PERFORMING OPERATIONS; TRANSPORTING
28
WORKING CEMENT, CLAY, OR STONE
D
WORKING STONE OR STONE-LIKE MATERIALS
1
Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhere; Machines, devices, tools therefor
26
by impact tools, e.g. by chisels or other tools having a cutting edge
E FIXED CONSTRUCTIONS
02
HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
D
FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
7
Methods or apparatus for placing sheet pile bulkheads, piles, mould-pipes, or other moulds
02
Placing by driving
Applicants: HITACHI KOKI CO LTD
日立工機株式会社; 東京都港区港南二丁目15番1号
Inventors: SAITO TAKUMA
斉藤 琢磨
OTSU SHINKI
大津 新喜
WATANABE HIDEKI
渡辺 英樹
SHOJI JUNICHI
東海林 潤一
Priority Data: 2004061806 05.03.2004 JP
Title: (EN) VIBRATING DRILL
(JA) 振動ドリル
Abstract:
(EN) PROBLEM TO BE SOLVED: To provide a vibrating drill having structure to reduce vibration transmitting to a user without impairing hole-digging capacity of the vibrating drill at both of high speed rotation and low speed rotation.

SOLUTION: This drill is provided with a first ratchet rotating together with a spindle and moving in the axial direction and a second ratchet engaged to the first ratchet. The second ratchet is supported to be movable in the axial direction and rotatable in the rotating direction within a prescribed range.

COPYRIGHT: (C)2005,JPO&NCIPI
(JA)


【課題】本発明の課題は、高速回転でも低速回転でも振動ドリルの穿孔能力を損なうことがなく、且つ使用者に伝達する振動を低減できる構造の振動ドリルを提供することにある。
【解決手段】スピンドルと共に回転し、軸方向に移動する第1ラチェットと、該第1ラチェットと係合する第2ラチェットとを備え、該第2ラチェットを軸方向に移動可能にすると共に回転方向にも所定の範囲内で回動できるように支持した。
【選択図】図8


Also published as:
US20050194165