JPS5821330Y2 - small motor - Google Patents

Description

【考案の詳細な説明】 本考案は小型モータに関し、特に、回転軸のスラスト方
向の受けを確実にせんとするものである。[Detailed Description of the Invention] The present invention relates to a small motor, and in particular, is intended to ensure that the rotating shaft is supported in the thrust direction.

以下、本考案を図面に示した一実施例に基づいて説明す
ると、Ｍはモータ部、Ｇはモータ部Ｍに結合され、モー
タ部Ｍの回転制御のための速度検出を行なう発電機部、
１は鋼板等から成るモータ部Ｍのケース、２はケース１
の開放面を塞ぐ蓋板で、該蓋板２およびケース１には軸
受３，４が取付けられ、回転軸５が軸受３，４で回転自
在に支持されている。Hereinafter, the present invention will be described based on an embodiment shown in the drawings. M is a motor section, G is a generator section that is coupled to the motor section M and performs speed detection for controlling the rotation of the motor section M;
1 is the case of the motor part M made of steel plate etc., 2 is the case 1
Bearings 3 and 4 are attached to the cover plate 2 and the case 1, and a rotary shaft 5 is rotatably supported by the bearings 3 and 4.

６はケース１に結合された鋼板等から成る発電機部Ｇの
ケースで、該ケースの底部６ａには押出し部６ｂと半抜
き部６ｃとを設けてスラストワッシャー受部Ｈが形成さ
れている。Reference numeral 6 denotes a case of the generator section G made of a steel plate or the like coupled to the case 1, and a thrust washer receiving part H is formed by providing an extruded part 6b and a half-opening part 6c in the bottom part 6a of the case.

このスラストワッシャー受部Ｈは特に、第４図から分る
ように、−円状に押出し部６ｂと半抜き部６ｃとを交互
に設けてあり、この加工は、押出しおよび半抜きを同時
に出来る金型で、ケース６をプレス加工することにより
構成する。As can be seen from FIG. 4, this thrust washer receiving part H in particular is provided with circular extrusion parts 6b and half-cutting parts 6c alternately, and this process is performed using a metal plate that can perform extrusion and half-cutting at the same time. It is constructed by pressing the case 6 with a mold.

７はプラスナック板、あるいは金属板から成るスラスト
ワッシャーで、該ワッシャーは中央部７ａ、中央部７ａ
から外方に突出した突出片７ｂを備え、この中央部７ａ
はスラストワッシャー受部Ｈの中央の凹部Ｈａに載置す
ると共に、突出片７ｂを押出し部６ｂによって形成され
た傾斜状凹部Ｈｂに載置することにより〜、ケース６に
位置決めされ、ワッシャーＴの中央部７ａには回転軸５
の一端が当接するように構成されている。7 is a thrust washer made of a plastic snack plate or a metal plate, and the washer has a central portion 7a, a central portion 7a
A projecting piece 7b projecting outward from the central part 7a is provided.
is positioned in the case 6 by placing it in the recess Ha at the center of the thrust washer receiving part H, and by placing the protrusion piece 7b in the inclined recess Hb formed by the extrusion part 6b. The rotation shaft 5 is provided in the portion 7a.
It is configured such that one end of the two abuts against each other.

また、回転軸５は、モータ部Ｍ内に内蔵された永久磁石
（四示せず）の吸引力を利用して、ワッシャー７方向に
引張り、回転軸５の一端を常時ワッシャー７に当接して
軸方向の遊びを無くしており、そして、回転軸５０回転
によって、回転軸５とワッシャー７との間に摩擦力が生
じても、ワッシャー７の突出片７ｂが半抜き部６ｃの断
部に係止されているため、共回りすることがない上に、
ワッシャー７は常に定位置に保持された状態となる。Further, the rotating shaft 5 is pulled in the direction of the washer 7 by using the attractive force of a permanent magnet (not shown) built into the motor part M, and one end of the rotating shaft 5 is kept in constant contact with the washer 7. directional play is eliminated, and even if a frictional force is generated between the rotating shaft 5 and the washer 7 due to rotation of the rotating shaft 50, the protruding piece 7b of the washer 7 is locked to the cut-off part of the half-opened part 6c. Because of this, there is no co-rotation, and
The washer 7 is always held in place.

即ち、本考案によれば、ケース６に押出し部６ｂと半抜
き部６ｃとを交互に設けてスラストワッシャー受部Ｈを
形成し、中央凹部Ｈａにワッシャー７の中央部７ａを、
また、傾斜状凹部Ｈｂにワッシャー７の突出片７ｂを載
置したものであるから、回転軸５とワッシャー７との間
の回転摩擦力によって、ワッシャー７は共回りすること
がない上に、ワッシャー７は常に定位置に確実に保持さ
れ、回転軸５のスラスト方向の受けを確実にし、また、
押出し部６ｂを設けているため、スラストワッシャー受
部Ｈの強度を高めることができる等の効果を奏する。That is, according to the present invention, the thrust washer receiving part H is formed by alternately providing the extruded parts 6b and the half-cut parts 6c in the case 6, and the central part 7a of the washer 7 is placed in the central recess Ha.
Further, since the projecting piece 7b of the washer 7 is placed in the inclined recess Hb, the washer 7 does not rotate together due to the rotational friction force between the rotating shaft 5 and the washer 7, and the washer 7 7 is always reliably held in a fixed position to ensure reception of the rotating shaft 5 in the thrust direction, and
Since the extruded portion 6b is provided, the strength of the thrust washer receiving portion H can be increased.

【図面の簡単な説明】[Brief explanation of drawings]

何れも本考案に係わり、第１図は一部切欠側面図、第２
図は要部拡大断面図、第３図は要部拡大平面図、第４図
は要部拡大斜視図、第５図はワッシャーの斜視図である
。 １・・・・・・ケース、２・・・・・・蓋板、３，４・
・・・・・軸受、５・・・・・・回転軸、６・・・・・
・ケース、６ａ・・・・・・底部、６ｂ・・・・・・押
出し部、６ｃ・・・・・・半抜き部、７・・・・・・フ
ッシャー、１ａ・・・・・・中央部、７ｂ・・・・・・
突出片、Ｍ・・・・・・モータ部、Ｇ・・・・・・発電
機部、Ｈａ・・・・・・中央凹部、Ｈ・・・・・・スラ
ストワッシャー受部、Ｈｂ・・・・・・傾斜状凹部。Both are related to the present invention, and Figure 1 is a partially cutaway side view, Figure 2 is a partially cutaway side view, and Figure 2 is a partially cutaway side view.
3 is an enlarged plan view of the main part, FIG. 4 is an enlarged perspective view of the main part, and FIG. 5 is a perspective view of the washer. 1... Case, 2... Lid plate, 3, 4.
... Bearing, 5 ... Rotating shaft, 6 ...
・Case, 6a...Bottom, 6b...Extrusion part, 6c...Half-opening part, 7...Fusher, 1a...Center Part, 7b...
Projecting piece, M... Motor part, G... Generator part, Ha... Central recess, H... Thrust washer receiving part, Hb... ...Slanted recess.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ケースに押出し部と半抜き部を交互に設けてスラストワ
ッシャー受部を形成し、中央部と該中央部から外方に突
出片を形成したスラストワッシャーを備え、該スラスト
ワッシャーの中央部を前記スラストワッシャー受部の半
抜き部に載置するとともに、前記スラストワッシャーの
突出片を前記スラストワッシャー受部の押出し部に載置
したことを特徴とする小型モータ。A thrust washer receiving part is formed by alternately providing extruded parts and half-cut parts in the case, and a thrust washer having a central part and a piece protruding outward from the central part is provided, and the central part of the thrust washer is connected to the thrust washer. A small motor, characterized in that the motor is placed in a half-opened part of the washer receiving part, and a protruding piece of the thrust washer is placed in the extruded part of the thrust washer receiving part.