Title:
【発明の名称】ハンマードリル
Document Type and Number:
Japanese Patent JP2655313
Kind Code:
B2
Abstract:
A device for driving a drilling and/or impacting tool comprising a shaft (1), which is arranged, if necessary, in a rotatable manner in a housing (6), and one end of which is adapted to be fastened to the tool, whereas the other end is accessible to an oscillating impact body (26) which is movable by means of a sliding or pivotal guide (27, 50) in the housing (6), whilst a rotatable driving shaft (14) through a transmission (7-13) can set moving the tool shaft (1) and/or the impact body (26), wherein the transmission (7-13) is provided with means (15-18) for converting the rotary movement of the driving shaft (14) into an oscillatory movement of a driving element (21), which is connected through an elastic member (23) with the impact body (26), said elastic member (23) preferably having a non-linear spring characteristic curve, whereby said impact body (26) will lag with respect to the driving element (21) because of the interposed elastic member, whilst in addition the cinetic energy can be flexibly picked up and transferred to the optimum to the tool shaft (1).
Inventors:
YOTSUTO EMU UIRUHERUMUSU
ANTONII YOHANESU MOORENAARU
JAN PEETAA HOBEN
ANTONII YOHANESU MOORENAARU
JAN PEETAA HOBEN
Application Number:
JP14465894A
Publication Date:
September 17, 1997
Filing Date:
June 27, 1994
Export Citation:
Assignee:
EMASON EREKUTORITSUKU CO
International Classes:
B25D11/10; B23B45/02; B23B45/16; B25D11/00; B25D11/06; B25D16/00; B25F3/00; B25F5/00; E21B1/00; (IPC1-7): B23B45/16
Attorney, Agent or Firm:
Shinichi Ogawa (2 outside)