JP2012200794A5

JP2012200794A5 -

Info

Publication number: JP2012200794A5
Application number: JP2011064688A
Authority: JP
Filing date: 2011-03-23
Publication date: 2013-11-21

Description

請求項３の発明は、請求項１又は２において、前記押圧部を、前記スピンドルの軸線を中心とする点対称位置で前記スピンドルの半径方向に突設され、前記第１の内側部材との対向面に当該第１の内側部材の押圧面を形成した一対のフランジ部とする一方、前記第１の内側部材に、前記一対のフランジ部が遊嵌して底面が前記押圧面と当接する被押圧面となる嵌合凹部を形成したことを特徴とする。
請求項４の発明に係るグラインダは、本体に収容されたモータと、前記本体から突出させて、前記モータにより回転駆動されるスピンドルと、前記本体に収容されて、前記スピンドルを制動するブレーキ装置と、前記スピンドルにおける前記本体からの突出部分に設けられて、該スピンドルの半径方向に突出するフランジ部と、前記スピンドルに備えられて、前記ブレーキ装置による前記スピンドルへの制動に伴い、前記フランジ部と干渉して前記スピンドルの先端側へ押圧される内側部材と、前記スピンドルに直交状に貫通させて、前記内側部材と該スピンドルの先端に螺合可能なナット部材とで挟止する先端工具と、を備えたグラインダであって、前記フランジ部には、前記スピンドルの軸線と垂直な面に対して所定の角度傾斜した第１の傾斜面が設けられると共に、前記内側部材には、前記制動時に前記第１の傾斜面と当接して該第１の傾斜面により前記先端工具側へ押圧される第２の傾斜面が設けられたことを特徴とする。 According to a third aspect of the present invention, in the first or second aspect, the pressing portion protrudes in a radial direction of the spindle at a point-symmetrical position about the axis of the spindle, and faces the first inner member. A pair of flange portions in which the pressing surface of the first inner member is formed on the surface, while the pair of flange portions are loosely fitted to the first inner member and the bottom surface is in contact with the pressing surface It is characterized in that a fitting recess to be a surface is formed.
According to a fourth aspect of the present invention, there is provided a grinder comprising: a motor housed in a main body; a spindle projecting from the main body and driven to rotate by the motor; and a brake device housed in the main body and braking the spindle. A flange portion provided in a projecting portion of the spindle from the main body and projecting in a radial direction of the spindle; and provided in the spindle, and when the brake device brakes the spindle, the flange portion; An inner member that interferes and presses toward the tip of the spindle; a tip tool that passes through the spindle perpendicularly and is clamped by the inner member and a nut member that can be screwed onto the tip of the spindle; A first grinder that is inclined at a predetermined angle with respect to a plane perpendicular to the axis of the spindle. An inclined surface is provided, and the inner member is provided with a second inclined surface that abuts against the first inclined surface during the braking and is pressed toward the tip tool by the first inclined surface. It is characterized by that.

Claims

A spindle is protruded from a main body provided with a brake device, and the spindle is pressed toward the front end side of the spindle by interfering with a pressing portion provided integrally with the spindle as the brake device brakes the spindle. An electric tool comprising an inner member, wherein a nut member can be screwed to the tip of the spindle, and a disk-like tool that is penetrated perpendicularly to the spindle can be sandwiched between the inner member and the nut member. ,
A first inner member that interferes with the pressing portion during braking and is pressed toward the disk-shaped tool, and a spindle that is integrally rotatable and detachably assembled to the first inner member. And a second inner member that can be sandwiched between the disc-shaped tool and the nut member in a state of being assembled to the first inner member.

The power tool according to claim 1, wherein a width of two faces parallel to a direction orthogonal to the axis of the spindle is formed on the outer periphery of the first inner member.

The pressing portion protrudes in the radial direction of the spindle at a point-symmetrical position about the spindle axis, and the pressing surface of the first inner member is formed on the surface facing the first inner member. While making a pair of flange parts,
The fitting recess which becomes a to-be-pressed surface where the pair of flange portions loosely fit and the bottom surface contacts the pressing surface is formed in the first inner member. Electric tool.

A motor housed in the body;
A spindle that protrudes from the body and is rotationally driven by the motor;
A brake device housed in the main body for braking the spindle;
A flange portion provided in a protruding portion from the main body of the spindle and protruding in a radial direction of the spindle;
An inner member provided on the spindle and interfering with the flange portion and being pressed toward the tip side of the spindle in accordance with braking to the spindle by the brake device;
A grinder comprising: a tip tool that passes through the spindle perpendicularly and is clamped by the inner member and a nut member that can be screwed onto the tip of the spindle;
The flange portion is provided with a first inclined surface inclined at a predetermined angle with respect to a surface perpendicular to the spindle axis, and the inner member abuts on the first inclined surface during braking. And a second inclined surface that is pressed toward the tip tool by the first inclined surface.