JPH0562559B2

JPH0562559B2 -

Info

Publication number: JPH0562559B2
Application number: JP2637087A
Authority: JP
Inventors: Yutaka Abe
Original assignee: TSUIN DENKI KK
Current assignee: TSUIN DENKI KK
Priority date: 1987-02-09
Filing date: 1987-02-09
Publication date: 1993-09-08
Also published as: JPS63194688A

Description

【発明の詳細な説明】下刃を固定し上刃を少範囲揺動させて、紙布な
どを截断する電動鋏の上下の刃は、上方よりみて
僅かな角度で交叉し、バネ圧で加圧された侭上刃
が上下に摺動するので、その交叉部は上下動する
と同時に水平方向にも催かな振れを生ずる。従つ
て上刃取付台は垂直に揺動面を保持すると同時に
この振れにスムーズに対応しなければならない。[Detailed description of the invention] The upper and lower blades of electric scissors, which cut paper cloth, etc. by fixing the lower blade and swinging the upper blade within a small range, intersect at a slight angle when viewed from above, and are applied with spring pressure. As the pressed upper blade slides up and down, the intersecting portion moves up and down, and at the same time causes slight vibration in the horizontal direction. Therefore, the upper blade mount must hold the swinging surface vertically and at the same time smoothly cope with this vibration.

この発明は上記の働きを円錐穴１４と、球状軸
受６の組合せを主構成とした装置により行うもの
で、先願の特願昭61−094589号電動鋏の動刃軸架
構造に於ける、揺動軸の固定と円錐穴、球状軸受
などの関係を逆にしたものである。プラスチツク
などで造られたケース１の内側先端部に、揺動軸
２が垂直に固定されている。揺動軸の先端は反対
側のケース１２の支穴１３で支えられる。これを
中心として揺動する、上刃取付台４の中心軸受部
の刃面と反対側は円錐穴１４に、また刃面側は上
下が揺動軸２に嵌合した軸受１１に軽く接する平
行面で、前後に若干の空隙１０を持つ受穴１５に
形成される。 This invention performs the above-mentioned function using a device mainly composed of a combination of a conical hole 14 and a spherical bearing 6, and is similar to the structure of the movable blade shaft of electric scissors in the earlier patent application No. 61-094589. The relationship between the fixation of the swing shaft, the conical hole, and the spherical bearing is reversed. A swing shaft 2 is vertically fixed to the inner tip of a case 1 made of plastic or the like. The tip of the swing shaft is supported by a support hole 13 of the case 12 on the opposite side. The center bearing part of the upper blade mount 4, which swings around this center, has a conical hole 14 on the side opposite to the blade surface, and a parallel surface where the top and bottom of the blade surface lightly touch the bearing 11 fitted to the swing shaft 2. It is formed into a receiving hole 15 with a slight gap 10 at the front and rear.

上刃取付台４の先端部には上刃３が取付けら
れ、後端はクランク９により駆動される。 The upper blade 3 is attached to the tip of the upper blade mount 4, and the rear end is driven by a crank 9.

上刃取付台４の円錐穴１４に球状軸受６を嵌
め、押バネ５を挾んで揺動軸２に装着し、そのバ
ネ圧により先端の上刃３は、ケース１先端に突出
した下刃台７に固定された下刃８と常時加圧され
て交叉し、後端は動力軸１６に接して支えられ
る。 The spherical bearing 6 is fitted into the conical hole 14 of the upper blade mounting base 4, and the press spring 5 is held between the spherical bearings 6 and the swing shaft 2, and the spring pressure causes the upper blade 3 at the tip to move to the lower blade base protruding from the tip of the case 1. The lower blade 8 fixed to the lower blade 7 intersects with pressure at all times, and the rear end is supported in contact with the power shaft 16.

球状軸受６は押バネ５により、円錐穴１４に密
に嵌合し、上刃取付台４の揺動中心を正確かつ強
力に支持する。他方軸受１１によつて揺動面のタ
テ方向の傾きを防止する。揺動運動は両軸受によ
つてスムーズに軸架されると同時に、上刃取付台
後端部と動力軸１６の接部を中心とした上下刃の
交叉部の水平方向の振れを、両軸受６，１１と揺
動軸２との軸方向の滑りと、軸受１１の前後の空
隙１０とによつて吸収させることができる。 The spherical bearing 6 is tightly fitted into the conical hole 14 by the push spring 5, and supports the center of swing of the upper blade mount 4 accurately and strongly. On the other hand, the bearing 11 prevents the swinging surface from tilting in the vertical direction. The oscillating movement is carried out smoothly by both bearings, and at the same time, the horizontal vibration of the intersection of the upper and lower blades, centered on the contact area between the rear end of the upper blade mount and the power shaft 16, is controlled by both bearings. This can be absorbed by the axial sliding between 6 and 11 and the swing shaft 2, and by the gaps 10 before and after the bearing 11.

通状円筒状の軸受のみで支えたものは、相当大
きなギヤツプを持たせないと、スムーズに運動し
ないし、ギヤツプにより振れ、振動、騒音が大き
く実用上好しくない。 A bearing supported only by a circular cylindrical bearing will not move smoothly unless it has a fairly large gap, and the gap will cause large vibrations, vibrations, and noise, which is not practical.

両軸受は含油メタルなどで造られ長寿命であ
る。 Both bearings are made of oil-impregnated metal and have a long life.

球状メタル１１は円筒状でもよく、また直接揺
動軸２に受穴１５の上下が軽く接するようにする
こともできる。 The spherical metal 11 may be cylindrical, and the upper and lower portions of the receiving hole 15 may be in direct contact with the swing shaft 2.

この発明を実施することによつて静粛で強力な
電動鋏の動刃軸架が、高精度且安価に製造でき
る。 By carrying out this invention, a quiet and powerful movable blade shaft for electric scissors can be manufactured with high precision and at low cost.

[Brief explanation of the drawing]

第１図はこの発明の実施例である電動鋏の前半
部を、ケースを開いてみた平面図で、第２図は第
１図の截線(A)に沿う断面図である。主な部品名、揺動軸…２、円錐穴…１４、上刃
…３、受穴…１５、上刃取付台…４、下刃…８、
球状軸受…６、クランク…９。 FIG. 1 is a plan view of the front half of an electric scissors according to an embodiment of the present invention when the case is opened, and FIG. 2 is a sectional view taken along the cutting line (A) in FIG. 1. Main parts names: Swing shaft...2, Conical hole...14, Upper blade...3, Receiving hole...15, Upper blade mounting base...4, Lower blade...8,
Spherical bearing...6, crank...9.

Claims

[Claims]

1. A swing shaft 2 is vertically fixed inside a case 1 of electric scissors, an upper blade 3 is attached to the tip, and a crank 9 is used to swing the swing shaft 2 to the rear end. The opposite side of the central bearing part of the upper blade mount 4 to the blade surface is connected to the conical hole 14, and the same side is connected to the swing shaft 2.
Alternatively, the bearing 11 fitted therein is formed in a receiving hole 15 with a slight gap 10 in the front and rear on parallel surfaces where the upper and lower sides slightly touch each other, and the spherical bearing 6 is fitted in the conical hole 14.
A push spring 5 is sandwiched between a spherical bearing 6 and a case 1,
A moving blade shaft mounting device for electric scissors in which an upper blade mounting base 4 is mounted on a swing shaft 2.