JPH0353589Y2 - - Google Patents
Info
- Publication number
- JPH0353589Y2 JPH0353589Y2 JP12305985U JP12305985U JPH0353589Y2 JP H0353589 Y2 JPH0353589 Y2 JP H0353589Y2 JP 12305985 U JP12305985 U JP 12305985U JP 12305985 U JP12305985 U JP 12305985U JP H0353589 Y2 JPH0353589 Y2 JP H0353589Y2
- Authority
- JP
- Japan
- Prior art keywords
- brush terminal
- brush
- ring shape
- coil spring
- deformed
- 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
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 7
- 206010014357 Electric shock Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Landscapes
- Motor Or Generator Frames (AREA)
Description
【考案の詳細な説明】
〔考案の利用分野〕
本考案は例えば電動工具に使用されるコイルバ
ネ方式のブラシターミナルに関するものである。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a coil spring type brush terminal used, for example, in electric tools.
一般に電動機回転子への電源供給は、リード線
からブラシターミナル、ブラシホルダ、電刷子
（ブラシ）、整流子へと導電させて行われるが、コ
イルバネ方式のブラシターミナルは、通常第１図
に示す如く、コイルバネ状に成形し、その後図示
しないブラシホルダに着脱可能となるようにリン
グ状に変形させた後半田等によりリード線２に止
めている（第２図の状態）。
Generally, power is supplied to a motor rotor by conducting electricity from a lead wire to a brush terminal, a brush holder, an electric brush, and a commutator, but coil spring type brush terminals are usually as shown in Figure 1. , formed into a coil spring shape, and then deformed into a ring shape so that it can be attached to and detached from a brush holder (not shown), and fixed to the lead wire 2 by soldering or the like (as shown in FIG. 2).
このような構造のブラシターミナル１は、断線
した場合、その復元力によりもとの直線的な形状
に戻り（第３図の状態）、ブラシホルダから容易
に外れるようになり、電動機の動作不良あるいは
感電等の事故につながる。 If the brush terminal 1 with such a structure is broken, its restoring force will return it to its original linear shape (the state shown in Figure 3), and it will easily come off from the brush holder, resulting in motor malfunction or This may lead to accidents such as electric shock.
これらの事故防止方法としては、従来はコイル
バネ状に成形したブラシターミナル１の中に第４
図のようにリング３を挿入し、ブラシターミナル
１が断線した場合でもリング状を保つようにして
いる。しかしこの方法では、作業性が悪く組立の
機械化には対応できないという欠点があつた。 As a method to prevent these accidents, conventionally a fourth brush terminal was installed in the brush terminal 1 formed into a coil spring shape.
As shown in the figure, a ring 3 is inserted to maintain the ring shape even if the brush terminal 1 is disconnected. However, this method has the drawback of poor workability and cannot be adapted to mechanized assembly.
本考案の目的は、上記した従来技術の欠点をな
くし、ブラシターミナルの組立作業の能率を向上
させ、機械化にも対応できるようにすることであ
る。
The purpose of the present invention is to eliminate the above-mentioned drawbacks of the prior art, improve the efficiency of brush terminal assembly work, and make it compatible with mechanization.
本考案は、復元力を持つたコイルバネをリング
状に変形した状態で塑性変形させると断線した場
合に直線状に戻らないことに着目し、コイルバネ
状に成形されたブラシターミナルをブラシホルダ
に着脱可能になるようにリング状に変形させ、こ
の状態で塑性変形させて断線した場合でもリング
状を保つようにしたことを特徴とするものであ
る。
This invention focuses on the fact that if a coil spring with restoring force is deformed into a ring shape and plastically deformed, it will not return to a straight line if the wire breaks, and the brush terminal shaped like a coil spring can be attached to and detached from the brush holder. It is characterized in that it is deformed into a ring shape so that it becomes , and is plastically deformed in this state so that even if the wire breaks, the ring shape is maintained.
以下実施例を示した第５図〜第８図を参照して
本考案を説明する。
The present invention will be explained below with reference to FIGS. 5 to 8 showing embodiments.
図において、１はブラシターミナル、２はリー
ド線、４はコネクタである。 In the figure, 1 is a brush terminal, 2 is a lead wire, and 4 is a connector.
コイルバネ状に成形されたブラシターミナル１
を、先ず第６図に示すようにリング状に変形さ
せ、コネクタ４を介してリード線２に接続する。
この時、第６図のＡ−Ａ線断面は第７図のような
形状である。 Brush terminal 1 shaped like a coil spring
is first deformed into a ring shape as shown in FIG. 6, and connected to the lead wire 2 via the connector 4.
At this time, the cross section taken along the line AA in FIG. 6 has a shape as shown in FIG. 7.
次に第６図の状態のブラシターミナル１に紙面
と垂直方向の圧力を加えてブラシターミナル１を
塑性変形させる。この時、第６図のＡ−Ａ線断面
は第８図のような形状となる。すなわちコイル断
面形状は真円でなく楕円形となる。 Next, pressure is applied to the brush terminal 1 in the state shown in FIG. 6 in a direction perpendicular to the plane of the paper to plastically deform the brush terminal 1. At this time, the cross section taken along the line AA in FIG. 6 has a shape as shown in FIG. 8. In other words, the cross-sectional shape of the coil is not a perfect circle but an ellipse.
従つて、ブラシターミナル１は塑性変形され、
たとえ断線したとしても上記した第３図の直線状
の状態に戻ることはなくなり感電等の恐れはなく
なる。また従来の如くリング３を挿入する必要も
ないので、組立性を向上できると共に組立の機械
化が可能となる。 Therefore, the brush terminal 1 is plastically deformed,
Even if the wire breaks, it will not return to the linear state shown in FIG. 3, and there will be no risk of electric shock. Further, since there is no need to insert the ring 3 as in the conventional case, assembly efficiency can be improved and assembly can be mechanized.
以上のように本考案によれば、断線したとして
もリング状を保つことができるので、感電等の事
故につながる恐れがなく、組立性を向上できると
共に組立の機械化が可能となる等の効果を奏し得
る。
As described above, according to the present invention, even if the wire is broken, the ring shape can be maintained, so there is no risk of accidents such as electric shock, and it is possible to improve assembly efficiency and mechanize assembly. It can be played.
第１図〜第４図は従来のブラシターミナルであ
つて、第１図はコイルバネ状に成形されたブラシ
ターミナル素材の正面図、第２図は第１図のブラ
シターミナル素材をリング状に変形させてリード
線に接続した状態を示す平面図、第３図はブラシ
ターミナルが断線した状態を示す平面図、第４図
はリングを挿入したブラシターミナルの他の例を
示す平面図である。第５図〜第８図は本考案ブラ
シターミナルの一実施例を示すものであつて、第
５図はコイルバネ状に成形されたブラシターミナ
ル素材の正面図、第６図は第５図のブラシターミ
ナル素材をリング状に変形させ、コネクタを介し
てリード線に接続した状態を示す平面図、第７図
及び第８図は第６図のＡ−Ａ線断面拡大図であ
り、夫々塑性変形させる前及び塑性変形後を示す
ものである。
図において、１はブラシターミナル、２はリー
ド線、４はコネクタである。
Figures 1 to 4 show conventional brush terminals, where Figure 1 is a front view of a brush terminal material formed into a coil spring shape, and Figure 2 is a front view of a brush terminal material formed into a ring shape from the brush terminal material shown in Figure 1. FIG. 3 is a plan view showing the brush terminal in a disconnected state, and FIG. 4 is a plan view showing another example of the brush terminal in which a ring is inserted. Figures 5 to 8 show an embodiment of the brush terminal of the present invention, in which Figure 5 is a front view of the brush terminal material formed into a coil spring shape, and Figure 6 is the brush terminal of Figure 5. A plan view showing a state in which the material is deformed into a ring shape and connected to a lead wire via a connector, and FIGS. 7 and 8 are enlarged cross-sectional views taken along the line A-A in FIG. 6, respectively, before being plastically deformed. and after plastic deformation. In the figure, 1 is a brush terminal, 2 is a lead wire, and 4 is a connector.
Claims (1)
続して構成するブラシターミナルであつて、 リング状に変形させた状態で所定の圧力を加え
て塑性変形させ、断線した場合に直線状に戻らな
いようにしたことを特徴とするブラシターミナ
ル。[Scope of claim for utility model registration] A brush terminal constructed by deforming a coil spring into a ring shape and connecting it to a lead wire, which is deformed into a ring shape and then plastically deformed by applying a predetermined pressure to break the wire. A brush terminal that is characterized in that it does not return to a straight line when
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12305985U JPH0353589Y2 (en) | 1985-08-09 | 1985-08-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12305985U JPH0353589Y2 (en) | 1985-08-09 | 1985-08-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6233661U JPS6233661U (en) | 1987-02-27 |
| JPH0353589Y2 true JPH0353589Y2 (en) | 1991-11-22 |
Family
ID=31013816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12305985U Expired JPH0353589Y2 (en) | 1985-08-09 | 1985-08-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0353589Y2 (en) |
-
1985
- 1985-08-09 JP JP12305985U patent/JPH0353589Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6233661U (en) | 1987-02-27 |
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