JPS61140668A - Gear - Google Patents
GearInfo
- Publication number
- JPS61140668A JPS61140668A JP25952384A JP25952384A JPS61140668A JP S61140668 A JPS61140668 A JP S61140668A JP 25952384 A JP25952384 A JP 25952384A JP 25952384 A JP25952384 A JP 25952384A JP S61140668 A JPS61140668 A JP S61140668A
- Authority
- JP
- Japan
- Prior art keywords
- gear
- pinion shaft
- insulating layer
- motor
- shaft
- 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.)
- Pending
Links
Landscapes
- Gears, Cams (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は歯車減速（′または増速）を行う歯車に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to gears that perform gear reduction (' or speed increase).
従来の技術
従来、この種の歯車減速（または増速）機構の歯車では
第６図に示すように中間ピニオン軸４７と中間ギヤ４６
は直接に一体結合されている。以下図面を参照しながら
上述した従来の歯車減速（（または増速）機構の歯車の
一例について説明するＯ
第５図は従来の歯車減速機構を示すものである。BACKGROUND OF THE INVENTION Conventionally, gears of this type of gear reduction (or speed increase) mechanism have an intermediate pinion shaft 47 and an intermediate gear 46 as shown in FIG.
are directly connected together. An example of the gears of the conventional gear reduction (or speed increase) mechanism described above will be described below with reference to the drawings. FIG. 5 shows a conventional gear reduction mechanism.
第５図において、３２はモータピニオン軸で、玉軸受３
３，３５．３８に回転自在に支承されて、その端部で、
−個または複数個の中間ギヤ４６と噛合っている。前記
中間ギヤ４６は中間ピニオン軸４７と直接一体結合され
ており、メタル軸受４８゜４９にて回転自在に支承され
ていると同時に、中間ピニオン軸４７は出力ギヤ軸６６
と噛合っている、出力ギヤ軸６６は減速された回転力を
クラッチ機構６６等へ伝達するように接続されている。In Fig. 5, 32 is the motor pinion shaft, and the ball bearing 3
3,35.38 is rotatably supported at its end,
- meshing with one or more intermediate gears 46; The intermediate gear 46 is directly and integrally connected to the intermediate pinion shaft 47, and is rotatably supported by metal bearings 48 and 49. At the same time, the intermediate pinion shaft 47 is connected to the output gear shaft 66.
The output gear shaft 66 meshing with the clutch mechanism 66 is connected to transmit the reduced rotational force to the clutch mechanism 66 and the like.
以上のように構成された歯車減速機構について、以下そ
の動作について説明する。The operation of the gear reduction mechanism configured as described above will be explained below.
まず、モータピニオン軸３２に与えられた高速回転を中
間ギヤ４６に伝達して一段減速される。First, the high-speed rotation applied to the motor pinion shaft 32 is transmitted to the intermediate gear 46 and decelerated by one step.
中間ギヤ４６と中間ピニオン軸４７は同軸的に一体結合
されているのでモータピニオン軸３２から中間ギヤ４６
へ減速伝達された回転はそのまま中間ピニオン軸４７へ
も伝達されることになる。一段減速された回転は中間ピ
ニオン軸４７から出力ギヤ軸５６へ二段減速されて伝達
され、さらにクラッチ機構５６等を経て外部へ伝達され
ていく。Since the intermediate gear 46 and the intermediate pinion shaft 47 are integrally connected coaxially, the intermediate gear 46 can be connected from the motor pinion shaft 32 to the intermediate gear 46.
The rotation that is decelerated and transmitted to the intermediate pinion shaft 47 is also transmitted as it is to the intermediate pinion shaft 47. The rotation that has been reduced in one step is transmitted from the intermediate pinion shaft 47 to the output gear shaft 56 after being reduced in two steps, and further transmitted to the outside via the clutch mechanism 56 and the like.
発明が解決しようとする問題点
しかしながら上記のような構成では、ハンド式電動工具
等の用途に使用される場合、安全性の面から考慮すると
危険内容を含んでいる。つ″！シ第５図に示す従来例の
歯車減速機構で、人間の把持する外枠４３．５０は成形
樹脂材料で構成されており、異常時のモータ、駆動部の
漏電等に際しても直接感電することはないが、モータピ
ニオン軸３２に漏れた電流は、噛合っている中間ギヤ４
６へ通電され、さらに同軸的に一体結合された中間ピニ
オン軸４７中間ピニオン軸４７と噛合っている出力ギヤ
軸５６、出力ギヤ軸５６と連結されているクラッチ機構
６６、先端作業部（図示せず）へと通電され外部へ漏電
することになる。この場合、モータ本体部（図示せず）
は絶縁カバー３４で電気的に外部と絶縁されておシ、モ
ータピニオン軸３２と接している玉軸受３５，３８は絶
縁ハウジング３７で外部と絶縁されている。以上のよう
にモータが漏電した場合、モータピニオン軸３２から中
間ギヤ４６、中間ピニオン軸４７、出力ギヤ軸６６、ク
ラッチ機構６５、作業部（図示せず）へと電流が漏れ、
人体に感電の危険性を与えるという問題を有していた。Problems to be Solved by the Invention However, when the above-mentioned configuration is used as a hand-operated power tool or the like, there are dangers in terms of safety. In the conventional gear reduction mechanism shown in Fig. 5, the outer frame 43.50 that is held by a person is made of molded resin material, so that it can be used to prevent direct electric shock in the event of an electrical leakage in the motor or drive section in the event of an abnormality. Although this will not occur, the current leaking to the motor pinion shaft 32 will flow through the meshing intermediate gear 4.
6 is energized, and is further coaxially connected to an intermediate pinion shaft 47, an output gear shaft 56 meshing with the intermediate pinion shaft 47, a clutch mechanism 66 connected to the output gear shaft 56, and a tip working part (not shown). The current will be applied to the battery, causing electrical leakage to the outside. In this case, the motor body (not shown)
are electrically insulated from the outside by an insulating cover 34, and ball bearings 35 and 38 in contact with the motor pinion shaft 32 are insulated from the outside by an insulating housing 37. When the motor leaks electricity as described above, current leaks from the motor pinion shaft 32 to the intermediate gear 46, intermediate pinion shaft 47, output gear shaft 66, clutch mechanism 65, and working part (not shown).
This poses a problem in that it poses a risk of electric shock to the human body.
本発明は上記欠点に鑑み、前記漏電通路において絶縁部
分を設け、漏れ電流が外部へ出ないような歯車減速（ま
たは増速）機構に使用する歯車を提供するものである。In view of the above drawbacks, the present invention provides a gear used in a gear reduction (or speed increase) mechanism in which an insulating portion is provided in the leakage path so that leakage current does not flow outside.
゛問題点を解決するための手段
上記問題点を解決するために本発明の歯車減速（または
増速）機構の歯車は、中間ピニオン軸と、前記中間ピニ
オン軸と一体成形した絶縁層と、前記絶縁層を介して中
間ピニオン軸と、一体結合された中間ギヤとを備えた構
成のものである。Means for Solving the Problems In order to solve the above problems, the gear of the gear reduction (or speed increase) mechanism of the present invention includes an intermediate pinion shaft, an insulating layer integrally molded with the intermediate pinion shaft, This configuration includes an intermediate pinion shaft and an intermediate gear that are integrally connected via an insulating layer.
作 用
本発明は上記した構成によって、モータピニオン軸と噛
合っている中間ギヤと、一段減速された回転を伝達する
中間ピニオン軸との間に絶縁層を設け、モータピニオン
軸から通電してくる漏洩電流を絶縁層でしゃ断するもの
である。According to the above-described structure, the present invention provides an insulating layer between the intermediate gear that meshes with the motor pinion shaft and the intermediate pinion shaft that transmits the rotation that has been reduced by one step, and receives electricity from the motor pinion shaft. The leakage current is blocked by an insulating layer.
実施例
以下本発明の一実施例の歯車減速機構の歯車について図
面を参照しながら説明する。第１図は本発明の一実施例
における歯車構造を示すものである。第２図、第３図は
第１図の構成部品を示しており、第４図は第１図の歯車
構造を採用した歯車減速機構の一実施例を示している。EXAMPLE Hereinafter, a gear of a gear reduction mechanism according to an embodiment of the present invention will be explained with reference to the drawings. FIG. 1 shows a gear structure in one embodiment of the present invention. 2 and 3 show the components shown in FIG. 1, and FIG. 4 shows an embodiment of a gear reduction mechanism employing the gear structure shown in FIG. 1.
第１図において１は中間ピニオン軸、２は前記ピニオン
軸１と一体成形した絶縁層で、３は前記絶縁層２を介し
て中間ピニオン軸と一体結合された中間ギヤである。ま
た第４図において４はモータピニオン軸で、玉軸受６，
７．８に回転自在に支承されて、その端部で、−個また
は複数個の中間ギヤ５と噛合っている。In FIG. 1, 1 is an intermediate pinion shaft, 2 is an insulating layer formed integrally with the pinion shaft 1, and 3 is an intermediate gear integrally connected to the intermediate pinion shaft via the insulating layer 2. Also, in Fig. 4, 4 is a motor pinion shaft, and ball bearings 6,
7.8 is rotatably supported, and meshes with one or more intermediate gears 5 at its ends.
前記中間ギヤ５は中間ピニオン軸１６と絶縁層３１を介
して一体結合されており、メタル軸受１５゜１７にて回
転自在に支承されていると同時に中間ピニオン軸１６は
出力ギヤと噛合っている。出力ギヤ軸２１は減速された
回転力をクラッチ機構３０等へ伝達するように接続され
ている。以上のように構成された歯車減速機構について
、以下その動作について説明する。モータピニオン軸４
に与えられた高速回転を中間ギヤ６に伝達して一段減速
される。中間ギヤ５と中間ピニオン軸１６は絶縁層３１
を介して同軸的に一体結合されているのでモータピニオ
ン軸４から中間ギヤ６へ減速伝達された回転はそのまま
中間ピニオン軸１６へも伝達されることになる。一段減
速された回転は中間ピニオン軸１６から出力ギヤ軸２１
へ二段減速されて伝達され、さらにクラッチ機構３０等
を経て外部へ伝達されていく。本歯車減速機構をハンド
式電動工具等の用途に使用される場合、人間の把持する
外枠１２．１８は成形樹脂材料で構成されており、また
、モータ本体（図示せず）は絶縁カッ（−９で絶縁され
ており、モータピニオン軸４を回転自在に支承している
玉軸受７，８は絶縁）・ウジング１１で支持されている
。さらにモータピニオン軸４と噛合っている中間ギヤ６
は絶縁層３１を介して中間ピニオン軸１６に一体結合さ
れているので、モータ本体（図示せず）の異常時におい
ても、モータピニオン軸４から漏洩する電流は中間ギヤ
５でしゃ断され、歯車減速機構として二重絶縁構造とな
る。The intermediate gear 5 is integrally connected to the intermediate pinion shaft 16 via an insulating layer 31, and is rotatably supported by metal bearings 15° 17, and at the same time, the intermediate pinion shaft 16 meshes with the output gear. . The output gear shaft 21 is connected to transmit the reduced rotational force to the clutch mechanism 30 and the like. The operation of the gear reduction mechanism configured as described above will be explained below. Motor pinion shaft 4
The high speed rotation given to is transmitted to intermediate gear 6 and decelerated by one step. The intermediate gear 5 and the intermediate pinion shaft 16 are covered with an insulating layer 31
Since the motor pinion shaft 4 is coaxially and integrally connected via the motor pinion shaft 4, the rotation transmitted from the motor pinion shaft 4 to the intermediate gear 6 at a reduced speed is also transmitted to the intermediate pinion shaft 16 as it is. The rotation that has been reduced by one step is transferred from the intermediate pinion shaft 16 to the output gear shaft 21.
The signal is then transmitted after being decelerated in two steps, and further transmitted to the outside via the clutch mechanism 30 and the like. When this gear reduction mechanism is used for applications such as hand-held power tools, the outer frame 12, 18 that is held by humans is made of molded resin material, and the motor body (not shown) is equipped with an insulating cup ( -9, and ball bearings 7 and 8 rotatably supporting the motor pinion shaft 4 are supported by an insulated housing 11. Further, an intermediate gear 6 meshing with the motor pinion shaft 4
is integrally connected to the intermediate pinion shaft 16 via the insulating layer 31, so even in the event of an abnormality in the motor body (not shown), the current leaking from the motor pinion shaft 4 is cut off by the intermediate gear 5, and the gear deceleration is The mechanism has a double insulation structure.
以上のように本実施例によれば中間ピニオン軸と、前記
中間ピニオン軸と一体成形した絶縁層と、前記絶縁層を
介して中間ピニオン軸と一体結合された中間ギヤとを備
えた歯車構造を歯車減速機構に使用することによりモー
タ異常時にも漏洩電流が外部へ流れ出ない二重絶縁構造
とするこｂができる。As described above, according to this embodiment, the gear structure includes an intermediate pinion shaft, an insulating layer integrally formed with the intermediate pinion shaft, and an intermediate gear integrally connected to the intermediate pinion shaft via the insulating layer. By using it in a gear reduction mechanism, it is possible to create a double insulation structure that prevents leakage current from flowing outside even when the motor is abnormal.
発明の効果
以上のように本発明は、中間ピニオン軸と、前記中間ピ
ニオン軸と一体成形した絶縁層と、前記絶縁層を介して
中間ピニオン軸と一体結合された中間ギヤとを備えた歯
車構造を歯車減速機構に使用することによシモータ異常
時にも漏洩電流が外部へ流れ出ない二重絶縁構造とする
ことができる。Effects of the Invention As described above, the present invention provides a gear structure including an intermediate pinion shaft, an insulating layer integrally formed with the intermediate pinion shaft, and an intermediate gear integrally connected to the intermediate pinion shaft via the insulating layer. By using this in a gear reduction mechanism, it is possible to create a double insulation structure that prevents leakage current from flowing outside even when the motor is abnormal.
第１図（イ）、（ロ）は本発明の一実施例における歯車
側面図及び縦断面図、第２図（イ）、（ロ）は中間ギヤ
の側面図及び縦断面図、第３図（イ）、（ロ）は中間ピ
ニオン軸の側面図及び縦断面図、第４図は本発明の一実
施例における歯車を使用した歯車減速機構の部分断面図
、第５図は従来の歯車減速機構の部分断面図である。
１・・・・・・中間ピニオン軸、２・・・・・・絶縁層
、３・・・・・・中間ギヤ。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名（イ
、 （Ｕ）
’−’聞゛゛”。
第 ２ 図
【イＪ
（０］第３図
（４］（田
第４図
畔−一一七−タと一７シ璋自
、ｆｆ−ｑ聞ずヤ
ト８−ｋｌ峠
９−１０＆刀）で−
Ｉｆ−−一虻身象ハウジンフ“
＋２．Ｉδ−−−ダシ壬午
＋６．＋７−−−メタ入阜１１（（
イ６−９．＾汽と一イン阜自
２ｔ−−一出：１フイヤ柿
３０−一−クラッ＋杉（＃にFigures 1 (a) and (b) are a side view and a longitudinal sectional view of a gear in an embodiment of the present invention, Figures 2 (a) and (b) are a side view and a longitudinal sectional view of an intermediate gear, and Figure 3 is a side view and a longitudinal sectional view of an intermediate gear. (A) and (B) are a side view and a vertical sectional view of the intermediate pinion shaft, FIG. 4 is a partial sectional view of a gear reduction mechanism using gears in an embodiment of the present invention, and FIG. 5 is a conventional gear reduction mechanism. FIG. 3 is a partial cross-sectional view of the mechanism. 1... Intermediate pinion shaft, 2... Insulating layer, 3... Intermediate gear. Name of agent: Patent attorney Toshio Nakao and one other person (I, (U)
'-'Listen'. Figure 2 [I J
(0) Figure 3 (4) (Ten 4 Figure 117-ta and 17 Shishoji, ff-q Kunzuyato 8-kl Pass 9-10 & Katana) - If--1 `` +2. Kura + Cedar (in #
Claims (5)
一体結合した歯車であって、中間ピニオン軸と、前記中
間ピニオン軸と一体成形した絶縁層と、前記絶縁層を介
して中間ピニオン軸と一体結合された中間ギヤとを備え
た歯車。(1) A gear in which a gear and a pinion are integrally connected by a gear reduction or speed increase mechanism, etc., which includes an intermediate pinion shaft, an insulating layer integrally molded with the intermediate pinion shaft, and an intermediate pinion shaft connected to the intermediate pinion shaft through the insulating layer. A gear with an integrally connected intermediate gear.
範囲第１項記載の歯車。(2) The gear according to claim 1, wherein a resin molding material is used as the insulating layer.
の範囲第１項記載の歯車。(3) The gear according to claim 1, wherein a sintered alloy material is used as the intermediate gear.
る特許請求の範囲第１項記載の歯車。(4) The gear according to claim 1, wherein a spur gear is used as the intermediate pinion shaft and the intermediate gear.
用する特許請求の範囲第１項記載の歯車。(5) The gear according to claim 1, wherein a helical gear is used as the intermediate pinion shaft and the intermediate gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25952384A JPS61140668A (en) | 1984-12-07 | 1984-12-07 | Gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25952384A JPS61140668A (en) | 1984-12-07 | 1984-12-07 | Gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61140668A true JPS61140668A (en) | 1986-06-27 |
Family
ID=17335279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25952384A Pending JPS61140668A (en) | 1984-12-07 | 1984-12-07 | Gear |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61140668A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5673261A (en) * | 1979-11-19 | 1981-06-17 | Ryobi Ltd | Manufacture of insulating gear in motor tool, etc. |
-
1984
- 1984-12-07 JP JP25952384A patent/JPS61140668A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5673261A (en) * | 1979-11-19 | 1981-06-17 | Ryobi Ltd | Manufacture of insulating gear in motor tool, etc. |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6805017B2 (en) | Motor-driven power steering device | |
| JP3600860B2 (en) | Roller with built-in motor and unit for roller with built-in motor | |
| EP0237180A1 (en) | An electric motor and gearbox unit and component parts thereof | |
| FR2427695A1 (en) | MULTI-ELEMENT BATTERIES | |
| JPS61140668A (en) | Gear | |
| FR2405579A1 (en) | INTERCONNECTION SYSTEM OF ELECTRICAL COMPONENTS OF A MACHINE SUCH AS A PORTABLE ELECTRIC DRILL | |
| WO2010150195A1 (en) | Self-contained drive system | |
| EP1419921B1 (en) | Hybrid transmission | |
| GB2050213A (en) | A power tool housing | |
| JPS6456966A (en) | Starter with reduction gear mechanism | |
| ITFI20020071U1 (en) | GEARMOTOR, IN PARTICULAR FOR CONCRETE MIXERS, MIXERS AND SIMILAR MACHINES | |
| EP2448091B1 (en) | Stator for electric motor, electric motor, and electric bicycle | |
| JP2018201277A (en) | Vehicular motor storage device | |
| JPH0865945A (en) | Motor driver | |
| JP2002021980A (en) | Electric power steering device | |
| EP1010603A3 (en) | An electric power steering apparatus | |
| CN217216137U (en) | Rotor and reduction gear comprising said rotor | |
| JPH029663Y2 (en) | ||
| JPH0537902Y2 (en) | ||
| EP1092619A3 (en) | Motor-driven assist unit | |
| JP2000135253A (en) | Electronic wheelchair | |
| FR2436687A1 (en) | CIRCUIT CONTROLLING THE POWER SUPPLY OF THE POWER SUPPLY IN A BATTERY VEHICLE | |
| JPH0265071U (en) | ||
| JP3099877B2 (en) | Micro engine handpiece | |
| KR890000844Y1 (en) | Connecting device of motors |