JPH0135588Y2 - - Google Patents
Info
- Publication number
- JPH0135588Y2 JPH0135588Y2 JP4851684U JP4851684U JPH0135588Y2 JP H0135588 Y2 JPH0135588 Y2 JP H0135588Y2 JP 4851684 U JP4851684 U JP 4851684U JP 4851684 U JP4851684 U JP 4851684U JP H0135588 Y2 JPH0135588 Y2 JP H0135588Y2
- Authority
- JP
- Japan
- Prior art keywords
- yoke body
- cut
- raised
- mounting plate
- protrusion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000003466 welding Methods 0.000 description 4
- 238000002788 crimping Methods 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical group [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/022—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with salient poles or claw-shaped poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
- H02K37/10—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type
- H02K37/12—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets
- H02K37/14—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets with magnets rotating within the armatures
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Description
【考案の詳細な説明】
本考案は極歯を形成したヨーク体と取付板の固
定構造を改善した小型モータに関する。[Detailed Description of the Invention] The present invention relates to a small motor with an improved fixing structure between a yoke body having pole teeth and a mounting plate.
従来一般に、ステツピングモータやインダクタ
モータ等においては、これらのヨーク体と取付板
の固定はスポツト溶接が多く利用されている。 Conventionally, in stepping motors, inductor motors, etc., spot welding is often used to fix the yoke body and the mounting plate.
しかし、工程上これらの部分はスポツト溶接さ
れる前にメツキ処理されることが多く、メツキ処
理された部品の場合にはスポツト溶接を行い難
く、又、一見うまく溶接されたように見えても溶
接箇所の強度や溶接箇所の変色及びメツキ層の破
壊の恐れ等の欠点がある。そのため、これらの部
品をスポツト溶接後は、組み付け状態でメツキ処
理することもあるが、この場合においても、２部
品の重合部分にはメツキが充分行き届かず、又、
隙間に浸透した処理液が完全に除去され難いため
後日発錆や腐触の原因となり易い等の欠点があ
る。 However, due to the process, these parts are often plated before being spot welded, and it is difficult to spot weld parts that have been plated. There are disadvantages such as the strength of the welded area, discoloration of the welded area, and the possibility of destruction of the plating layer. Therefore, after spot welding, these parts are sometimes plated in the assembled state, but even in this case, the plating does not reach the overlapping part of the two parts sufficiently, and
There are drawbacks such as the fact that it is difficult to completely remove the treatment liquid that has penetrated into the gaps, which can easily cause rust or corrosion later on.
更にスポツト溶接では接合面の油付着や汚れ、
メツキの厚さ、接合面に電流集中用の凸部を設け
るとその形状、高さ、電極の表面形状、大きさに
よつて電流の流れ方が違うこととなり固定強度が
異なり、振動等で剥離する大きな問題や圧痕処理
等の問題も残る欠点がある。 Furthermore, in spot welding, oil adhesion and dirt on the joint surface,
If a convex part for current concentration is provided on the thickness of the plating and the joint surface, the way the current flows will differ depending on the shape, height, and surface shape and size of the electrode, resulting in different fixing strength and peeling due to vibration etc. However, there are still some drawbacks, such as major problems such as the problem of indentation and the problem of indentation treatment.
そのため、他の固定構造として機械的なリベツ
トカシメやネジ止め等による構造も考えられる
が、そのためには孔をあけなければならず、孔を
あけることは磁気効率が減退される欠点が生じる
と共に本来平面であるべき面に突起部が生じた
り、固定のための別部品を必要として作業が煩雑
になる等構造上及び組立作業上の欠点が多い。 Therefore, other fixing structures such as mechanical rivet caulking or screw fixing are possible, but this requires drilling holes, which has the drawback of reducing magnetic efficiency and There are many disadvantages in terms of structure and assembly work, such as protrusions appearing on the intended surface and the need for separate parts for fixing, which complicates the work.
本考案の目的は、上記欠点に鑑み、ヨーク体に
形成される極歯の切起こし孔を利用して取付板を
固定して磁気効率を阻害することなくヨーク体と
取付板を固定した小型モータを提案することであ
る。 In view of the above-mentioned drawbacks, the purpose of the present invention is to create a small motor in which the mounting plate is fixed by using cut-and-raised holes of the pole teeth formed in the yoke body, and the yoke body and the mounting plate are fixed without impeding magnetic efficiency. It is to propose.
本考案の特徴は、モータの極歯を切起こし形成
したヨーク体の極歯切起こし孔に取付板にプレス
加工で一体に突出形成した凸部を嵌挿し、この凸
部をヨーク体にカシメ固定してヨーク体と取付板
を固定したことにある。 The feature of this invention is that a protruding part formed integrally with the mounting plate by press processing is inserted into the cut-and-raised hole of the yoke body in which the pole teeth of the motor are cut and raised, and this raised part is fixed to the yoke body by caulking. This is because the yoke body and mounting plate were fixed.
以下、図示の実施例で本考案の小型モータを説
明する。第１図はステツピングモータでカツプ状
ヨーク体１と平板状ヨーク体２の組み合わせが２
組設けられ、両カツプ状ヨーク体１の外側に取付
板３，４が固定され、取付板３と他方のヨーク体
１に固定された軸受５，５に回転軸６が軸承され
て回転軸６に回転子マグネツト７が固定され、ヨ
ーク体１内に励磁コイル８，８が嵌挿されてい
る。 Hereinafter, the small motor of the present invention will be explained with reference to illustrated embodiments. Figure 1 shows a stepping motor with two combinations of a cup-shaped yoke body 1 and a flat plate-shaped yoke body 2.
Mounting plates 3 and 4 are fixed to the outside of both cup-shaped yoke bodies 1, and a rotating shaft 6 is supported by bearings 5 and 5 fixed to the mounting plate 3 and the other yoke body 1. A rotor magnet 7 is fixed to the yoke body 1, and excitation coils 8, 8 are fitted into the yoke body 1.
上記カツプ状ヨーク体１と平板状ヨーク体２に
は多数の極歯１ａ，２ａが切起こし形成されて組
み合わされている。 The cup-shaped yoke body 1 and the flat plate-shaped yoke body 2 are combined with a large number of pole teeth 1a, 2a formed by cutting and raising.
上記取付板３又は４には第３図のように凸部３
ａが平板部３ｂから部位３ｃでプレス加工により
突出形成され、凸部３ａは第２図、第３図のよう
にカツプ状ヨーク体１の極歯１ａが切り起こされ
た切起こし孔１ｂに嵌挿されている。この嵌挿の
際ヨーク体１の極歯切起こし孔１ｂと取付板３の
凸部３ａとの位置関係を両者が相対回転不能にな
るように幅寸法を略同一としている。嵌挿されて
凸部３ａは治具９，１０で上下からカシメ加工さ
れ、治具９には第４図のように凸部９ａが、治具
１０には下面が傾斜面１０ａ，１０ｂで形成され
て凸部３ａの上側が第２図、第４図、第５図のよ
うに切起こし孔１ｂの縁に乗るように塑性変形さ
れて上面に線３ｄが出来るようにカシメ固定され
ている。 The mounting plate 3 or 4 has a protrusion 3 as shown in Fig. 3.
a is formed to protrude from the flat plate portion 3b at a portion 3c by press working, and the convex portion 3a is fitted into the cut-and-raised hole 1b in which the pole tooth 1a of the cup-shaped yoke body 1 is cut and raised, as shown in FIGS. 2 and 3. It is inserted. At the time of this fitting, the positional relationship between the pole tooth cut and raised hole 1b of the yoke body 1 and the convex portion 3a of the mounting plate 3 is such that the width dimensions thereof are approximately the same so that both cannot rotate relative to each other. Once inserted, the protrusion 3a is caulked from above and below using jigs 9 and 10. The jig 9 has a protrusion 9a as shown in FIG. 4, and the jig 10 has an inclined lower surface 10a and 10b. Then, the upper side of the convex portion 3a is plastically deformed so as to rest on the edge of the cut-and-raised hole 1b as shown in FIGS. 2, 4, and 5, and is caulked and fixed so that a line 3d is formed on the upper surface.
上記治具１０の形状を第６図イのように円柱で
下面を曲面１０ｃで形成すると、カシメ固定後の
凸部３ａ上面には第６図ロのように浅い凹部３ｆ
が形成される。 If the shape of the jig 10 is a cylinder as shown in FIG. 6A, and the lower surface is formed with a curved surface 10c, the upper surface of the convex portion 3a after crimping is fixed has a shallow recess 3f as shown in FIG. 6B.
is formed.
第７図は凸部３ａのカシメ固定方法の変形例
で、下側の治具９の上にヨーク体１が載せられる
と共に治具９の低い凸部９ｂが取付板３の凸部３
ａが嵌挿されるヨーク体１の極歯切起こし孔１ｂ
の下側に配置され、治具９の高い凸部９ａ，９ａ
が取付板３の凸部３ａが嵌挿されるヨーク体１の
極歯切起こし孔１ｂの左右の極歯切起こし孔１
b′，１b′に挿入され、ヨーク体１上に取付板３が
載せられると共に上記のように凸部３ａが極歯切
起こし孔１ｂに嵌挿され、上側の治具１０が下降
されて治具９の凸部９ｂと協同して凸部３ａがカ
シメ固定される。 FIG. 7 shows a modification of the method of fixing the convex portion 3a by caulking, in which the yoke body 1 is placed on the lower jig 9, and the low convex portion 9b of the jig 9 is attached to the convex portion of the mounting plate 3.
Pole gear cutting and raising hole 1b of yoke body 1 into which a is inserted
The high protrusions 9a, 9a of the jig 9 are arranged below the jig 9.
are the left and right pole tooth cut and raised holes 1 of the pole tooth cut and raised holes 1b of the yoke body 1 into which the convex portions 3a of the mounting plate 3 are inserted.
b' and 1b', the mounting plate 3 is placed on the yoke body 1, and the convex part 3a is fitted into the pole tooth cutting and raising hole 1b as described above, and the upper jig 10 is lowered and fixed. The protrusion 3a is caulked and fixed in cooperation with the protrusion 9b of the tool 9.
上記治具９の凸部９ａ，９ａを凸部３ａが嵌挿
される極歯切起こし孔１ｂの左右の孔に嵌挿して
カシメ加工すると、ヨーク体１には極歯切起こし
孔１ｂが多数穿設されているので平面部が少ない
ためカシメ力によつてヨーク体１の肉が逃げてし
まい、カシメが得られないが、左右の凸部９ａ，
９ａでこれを防止することが出来る。更に凸部３
ａは極歯切起こし孔１ｂ内の極歯１ａから離れた
位置に嵌挿し、かつカシメ力が円周方向に加わる
ようにすることが極歯の傾きを防止することに役
立つ。 When the protrusions 9a, 9a of the jig 9 are inserted into the left and right holes of the pole gear cut and raised hole 1b into which the protrusion 3a is inserted and caulked, a large number of pole gear cut and raised holes 1b are formed in the yoke body 1. Since there are only a few flat parts, the flesh of the yoke body 1 escapes due to the crimping force, and crimping cannot be achieved, but the left and right protrusions 9a,
9a can prevent this. Furthermore, convex portion 3
It is useful to prevent the pole teeth from inclining by fitting a into the pole tooth cutting and raising hole 1b at a position away from the pole tooth 1a and applying the caulking force in the circumferential direction.
上記のようにヨーク体１と取付板３がカシメ固
定されると、極歯１ａの切起こし孔１ｂに凸部３
ａが嵌挿されてカシメ固定されるので凸部３ａ嵌
挿用の孔を別に穿設する必要がなく、磁気効率を
阻害することがない。 When the yoke body 1 and the mounting plate 3 are caulked and fixed as described above, the protrusion 3 is inserted into the cut and raised hole 1b of the pole tooth 1a.
Since the protrusion 3a is inserted and fixed by caulking, there is no need to separately drill a hole for inserting the protrusion 3a, and the magnetic efficiency is not inhibited.
又、極歯の切起こし孔１ｂは多数形成されてい
るのでどの切起こし孔１ｂを使用することも自由
であり、切起こし孔１ｂの幅寸法は精度高く形成
されているので凸部３ａとの位置合わせも容易で
ある。 In addition, since a large number of cut and raised holes 1b for the pole teeth are formed, any cut and raised hole 1b can be used freely, and the width dimension of the cut and raised hole 1b is formed with high precision, so that the width of the cut and raised hole 1b is precisely formed. Positioning is also easy.
更に第２図の取付板３の取付用孔３ｅを極歯１
ａによる出力軸６の停止位置やカツプ状ヨーク体
１に設けた励磁コイル８のリード線引き出し切欠
部１ｃに対しユーザーの仕様に応じて所望角度位
置に選択して変更することも可能である。更に極
歯１ａ及び切起こし孔１ｂが等間隔で形成されて
いる本実施例の場合には取付用孔３ｅを等間隔寸
法で選択変更することも可能である。 Furthermore, the mounting hole 3e of the mounting plate 3 shown in FIG.
It is also possible to select and change the stop position of the output shaft 6 according to a and the desired angular position of the lead wire extraction notch 1c of the excitation coil 8 provided in the cup-shaped yoke body 1 according to the user's specifications. Furthermore, in the case of this embodiment in which the pole teeth 1a and the cut and raised holes 1b are formed at equal intervals, it is also possible to select and change the dimensions of the mounting holes 3e at equal intervals.
上記本考案が実施される小型モータがインダク
タモータの場合は第２図図示のカツプ状ヨーク体
１と類似形状のヨーク体が第８図のように取付板
４と平板状ヨーク体２とを上記と同一方法でカシ
メ固定されたものに嵌合固定される。 When the small motor in which the present invention is implemented is an inductor motor, a yoke body having a similar shape to the cup-shaped yoke body 1 shown in FIG. It is fitted and fixed to something that is caulked in the same way as.
第８図では極歯２ａが外側から切り起こされて
いるが内側から切り起こしてもよい。又、軸受５
は取付板４若しくは平板状ヨーク体２のいずれに
設けてもよい。 Although the pole teeth 2a are cut and raised from the outside in FIG. 8, they may be cut and raised from the inside. Also, bearing 5
may be provided on either the mounting plate 4 or the flat yoke body 2.
なお第１図のように軸受部を突出させ外側へ持
つてくるようにすれば、極歯２ａを回転子マグネ
ツト７と有効に対面させることが出来、長軸形の
ステツピングモータに有利である。即ち長軸形の
ものは回転子の慣性を小さくするため回転子の径
を小さくしているが、それによりトルクが落ち高
速性が満足されないようでは問題である。そのた
めに軸受部を外方に突出させ極歯２ａ全長に渡つ
てマグネツト７が対面するようにしているのであ
る。 In addition, if the bearing portion is made to protrude and be brought outward as shown in FIG. 1, the pole teeth 2a can effectively face the rotor magnet 7, which is advantageous for a long-shaft stepping motor. . That is, in the case of a long shaft type, the diameter of the rotor is made small in order to reduce the inertia of the rotor, but this causes a problem if the torque decreases and the high speed performance is not satisfied. For this purpose, the bearing portion is made to protrude outward so that the magnet 7 faces the entire length of the pole tooth 2a.
なお本考案は特に小型かつ極歯が多数の小型モ
ータに適用すると多大の効果があるが、それらに
限定されることはない。 The present invention is particularly effective when applied to a small motor with a large number of pole teeth, but it is not limited thereto.
又、上記説明では、取付板３又は４の凸部３
ａ，４ａとヨーク体１の極歯切起こし孔１ｂとの
幅寸法を略同一にして、上記両者の位置関係が相
対回転不能となるようにして位置決めを行つてい
るが、両者の位置決めという点では必ずしも取付
板の凸部と切起こし孔の幅を同一にする必要はな
い。例えば第９図のように２組の凸部３ａ，３ａ
の一方の凸部の左側を切起こし孔１ｂの左側壁
に、他方の凸部の右側を他の切起こし孔１ｂの右
側壁に夫々当接するように位置合わせすれば両者
の幅が同一でなくとも嵌挿のみで相対回転不能に
できる。 In addition, in the above explanation, the convex portion 3 of the mounting plate 3 or 4
a, 4a and the pole gear cutting and raising hole 1b of the yoke body 1 are made to have approximately the same width dimension, and the positioning is performed by making the above-mentioned positional relationship between the two so that they cannot rotate relative to each other. In this case, it is not necessarily necessary to make the width of the convex part of the mounting plate and the width of the cut and raised hole the same. For example, as shown in FIG. 9, two sets of convex portions 3a, 3a
If they are aligned so that the left side of one convex part is in contact with the left side wall of the cut-and-raised hole 1b, and the right side of the other convex part is in contact with the right-hand side wall of the other cut-and-raised hole 1b, their widths will not be the same. Both can be made non-rotatable by simply inserting them.
本考案は上述のように構成されたから、極歯の
切起こし孔を利用して取付板にプレス加工で一体
に突出形成した凸部が嵌挿されてカシメ固定され
るのでスポツト溶接による各種の問題点はなく、
かつ別にカシメ固定用の孔をヨーク体に穿設する
必要がないので磁気効率を阻害しない。又通常切
起こし孔の寸法精度が高いのでヨーク体と取付板
との位置決めを高精度にし易い。 Since the present invention is constructed as described above, the protrusion formed integrally with the mounting plate by press processing is inserted into the mounting plate using the cut and raised holes of the pole teeth and fixed by caulking, thereby eliminating various problems caused by spot welding. There are no points,
Moreover, since there is no need to separately drill holes for fixing caulking in the yoke body, magnetic efficiency is not inhibited. Further, since the dimensional accuracy of the cut and raised holes is usually high, it is easy to position the yoke body and the mounting plate with high precision.
第１図は本考案を実施した小型モータの断面側
面図、第２図はカツプ状ヨーク体と取付板の外観
斜視図、第３図は切起こし孔に凸部が嵌挿された
断面側面図、第４図は第３図の−線でカシメ
固定された断面側面図イと上側治具の底面図ロ、
第５図は第３図、第４図で形成されたカシメ固定
凸部の平面図、第６図は上側治具の形状が異なる
場合の治具の説明図イとカシメ固定凸部の平面図
ロ、第７図は下側治具に凸部が設けられて取付板
の凸部がカシメ固定される断面側面図、第８図は
平板状ヨーク体と取付板の外観斜視図、第９図は
他のカシメ固定された凸部の平面図である。
１，２……ヨーク体、１ａ，２ａ……極歯、１
ｂ，１b′，２ｂ……切起こし孔、３，４……取付
板、３ａ，４ａ……凸部。
Fig. 1 is a cross-sectional side view of a small motor embodying the present invention, Fig. 2 is an external perspective view of the cup-shaped yoke body and mounting plate, and Fig. 3 is a cross-sectional side view of the protrusion inserted into the cut-and-raised hole. , Fig. 4 is a cross-sectional side view A and a bottom view B of the upper jig fixed by caulking along the - line in Fig. 3.
Figure 5 is a plan view of the caulking fixing convex formed in Figures 3 and 4, and Figure 6 is an explanatory diagram of the jig when the shape of the upper jig is different, and a plan view of the caulking fixing convex. B. Fig. 7 is a cross-sectional side view in which a protrusion is provided on the lower jig and the protrusion on the mounting plate is fixed by caulking, Fig. 8 is an external perspective view of the flat yoke body and the mounting plate, and Fig. 9 is a plan view of another convex portion fixed by caulking. 1, 2...Yoke body, 1a, 2a...Pole tooth, 1
b, 1b', 2b...cut and raised holes, 3, 4...mounting plate, 3a, 4a...convex portions.
Claims (1)
歯切起こし孔に取付板にプレス加工で一体に突出
形成した凸部を嵌挿し、この凸部をヨーク体にカ
シメ固定してヨーク体と取付板を固定したことを
特徴とする小型モータ。 Insert the protruding part formed integrally on the mounting plate by press working into the pole tooth cut-and-raised hole of the yoke body, which has the pole teeth of the motor cut and raised, and attach the protrusion to the yoke body by caulking and fixing this protrusion to the yoke body. A small motor characterized by a fixed plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4851684U JPS60162976U (en) | 1984-04-04 | 1984-04-04 | small motor |
| GB08507551A GB2159078A (en) | 1984-04-04 | 1985-03-22 | Small electric motor, components therefor and method of manufacturing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4851684U JPS60162976U (en) | 1984-04-04 | 1984-04-04 | small motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60162976U JPS60162976U (en) | 1985-10-29 |
| JPH0135588Y2 true JPH0135588Y2 (en) | 1989-10-30 |
Family
ID=12805527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4851684U Granted JPS60162976U (en) | 1984-04-04 | 1984-04-04 | small motor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS60162976U (en) |
| GB (1) | GB2159078A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3060358B2 (en) * | 1994-06-24 | 2000-07-10 | 富士電気化学株式会社 | Method of manufacturing stator yoke and stator yoke |
| WO1997048173A1 (en) * | 1996-06-14 | 1997-12-18 | Seiko Epson Corporation | Stepping motor and method for assembling the same |
| GB0004801D0 (en) | 2000-03-01 | 2000-04-19 | Rolls Royce Plc | A joint for sheet material and a method of joining sheet material |
| GB2401488A (en) * | 2003-05-09 | 2004-11-10 | Sunonwealth Electr Mach Ind Co | Integrally formed casing/pole plate for a heat-dissipating fan |
| JP4401146B2 (en) * | 2003-11-10 | 2010-01-20 | 株式会社マキタ | Motor manufacturing method and manufacturing apparatus |
| CN1759521A (en) * | 2003-12-26 | 2006-04-12 | 松下电器产业株式会社 | Thin type motor and method of producing the same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH338168A (en) * | 1956-02-08 | 1959-05-15 | Diebold Karl | Method for connecting sheet metal parts and sheet metal parts connected to one another using this method |
| GB848050A (en) * | 1959-04-01 | 1960-09-14 | Standard Telephones Cables Ltd | Improvements in or relating to sheet metal joints |
| GB1211895A (en) * | 1968-04-29 | 1970-11-11 | Edward John Ardolino | Method of joining sheets or sheet like areas |
| GB1412303A (en) * | 1972-12-20 | 1975-11-05 | Sugden B H | Method and apparatus for joining sheet metal and sheet metal joints |
-
1984
- 1984-04-04 JP JP4851684U patent/JPS60162976U/en active Granted
-
1985
- 1985-03-22 GB GB08507551A patent/GB2159078A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| GB8507551D0 (en) | 1985-05-01 |
| GB2159078A (en) | 1985-11-27 |
| JPS60162976U (en) | 1985-10-29 |
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