JPS64305Y2 - - Google Patents
Info
- Publication number
- JPS64305Y2 JPS64305Y2 JP13259083U JP13259083U JPS64305Y2 JP S64305 Y2 JPS64305 Y2 JP S64305Y2 JP 13259083 U JP13259083 U JP 13259083U JP 13259083 U JP13259083 U JP 13259083U JP S64305 Y2 JPS64305 Y2 JP S64305Y2
- Authority
- JP
- Japan
- Prior art keywords
- handle
- heating element
- stator
- frame
- operator
- 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
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 2
- 240000000599 Lentinula edodes Species 0.000 description 3
- 208000003782 Raynaud disease Diseases 0.000 description 3
- 208000012322 Raynaud phenomenon Diseases 0.000 description 3
- 208000028571 Occupational disease Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Drilling And Boring (AREA)
Description
【考案の詳細な説明】
本考案は、電動工具における操作者が把持する
ハンドル部の保温に関するものである。[Detailed Description of the Invention] The present invention relates to keeping the handle portion of a power tool held by an operator warm.
従来の電動工具は、電動機の冷却風をハンドル
側から吸い込み先端工具側へ排出する構造が一般
的である。しかし、冬期間の寒冷期に集中して使
用されることの多い電動工具、たとえば椎茸栽培
用の電気ドリル（椎茸ドリル）や電気チエンソー
などの場合は、寒気をハンドル側から吸い込み、
ハンドル部が常に冷却されるため、操作者が防寒
対策をしてもまだ冷たく、作業能率の低下と共
に、長期に使用した作業者の中に、レイノー症を
呈するもののあることが問題になつている。従来
の電動工具は、振動に関する低減策はある程度と
られているが、低温に対する対策がなされていな
かつた。 Conventional power tools generally have a structure in which cooling air from the motor is sucked in from the handle side and discharged to the tip tool side. However, in the case of power tools that are often used intensively during the cold period of winter, such as electric drills for cultivating shiitake mushrooms (shiitake mushroom drills) and electric chain saws, cold air is sucked in from the handle side.
Because the handle is constantly cooled, it is still cold even if the operator takes measures to protect himself from the cold, reducing work efficiency and causing problems such as Raynaud's syndrome in some workers who have used it for a long time. . Conventional power tools have taken measures to reduce vibration to some extent, but no measures have been taken to deal with low temperatures.
本考案の目的は、上記した従来技術の問題点を
解消し、操作者の把持するハンドル部を保温し、
作業能率向上およびレイノー症等の職業病を防止
することにある。 The purpose of this invention is to solve the above-mentioned problems of the conventional technology, to keep the handle part held by the operator warm,
The aim is to improve work efficiency and prevent occupational diseases such as Raynaud's syndrome.
本考案は、電動機運転中の固定子の分担電圧に
着目し、固定子巻線両端に発生する低電圧をハン
ドル部内に設けた発熱体に供給し、ハンドル部を
保温するようにしもので、発熱体の電圧が低いた
め、安全性を向上するように工夫したものであ
る。 This invention focuses on the shared voltage of the stator while the motor is operating, and supplies the low voltage generated at both ends of the stator windings to the heating element installed in the handle, thereby keeping the handle warm. This design was designed to improve safety since the body's voltage is low.
本考案の一実施例として、椎茸ドリルを例に説
明する。 An embodiment of the present invention will be explained using a shiitake mushroom drill as an example.
図において、外枠７の内部に、固定子１と回転
子２が収納されている。外枠７の後方に操作者が
把持するハンドル部３が形成されている。 In the figure, a stator 1 and a rotor 2 are housed inside an outer frame 7. A handle portion 3 that is gripped by an operator is formed at the rear of the outer frame 7.
電動機運転中に、固定子巻線の両端に発生する
電圧は、電動機供給電圧の約20％程度の低電圧と
なる。第３図の回路図に示すように、固定子巻線
の両端に発生する電圧を電源として、ハンドル部
の内周面に沿つて、ステンレス板状等の発熱体６
が配設されている。この発熱体は、第２図に示す
ように、シリコンゴム等の絶縁体４で被覆されて
いる。発熱体の温度が上昇し、更に外気温が上昇
したような場合、操作者が把持し、熱さの上限温
度に達した場合、外部から操作可能な位置に取付
けられたスイツチ５で発熱体の回路を開閉できる
ように配設している。 During operation of the motor, the voltage generated across the stator windings is as low as about 20% of the motor supply voltage. As shown in the circuit diagram of Fig. 3, using the voltage generated at both ends of the stator winding as a power source, a heating element 6 such as a stainless steel plate is installed along the inner peripheral surface of the handle.
is installed. As shown in FIG. 2, this heating element is covered with an insulator 4 such as silicone rubber. When the temperature of the heating element rises and the outside temperature also rises, the operator holds it and when the upper limit temperature is reached, the circuit of the heating element is turned on by the switch 5 installed in a position that can be operated from the outside. It is arranged so that it can be opened and closed.
また、発熱体への供給電源を、固定子巻線の一
部から取出すことにより、固定子巻線の巻数比に
応じて、本実施例より更に低電圧を供給すること
も可能である。 Further, by extracting the power supplied to the heating element from a part of the stator winding, it is possible to supply a voltage even lower than that of this embodiment, depending on the turn ratio of the stator winding.
本考案によれば、電動機運転中に固定子巻線の
両端に発生する電圧を電源として、ハンドル把持
部に発熱体を配設し保温したので、安全性向上と
共に寒期時の作業能率向上、レイノー症等の職業
病を防止することができる。 According to the present invention, the voltage generated at both ends of the stator winding during motor operation is used as a power source, and a heating element is placed in the handle grip to keep it warm. This improves safety and improves work efficiency during cold seasons. Occupational diseases such as Raynaud's syndrome can be prevented.
第１図は本実施例を示す電気ドリルの一部縦断
正面図、第２図は第１図のAA線断面図、第３図
は回路図を示す。
図において、１は固定子、２は回転子、３はハ
ンドル部、４は発熱体、５はスイツチ、６は絶縁
体。
FIG. 1 is a partially longitudinal front view of an electric drill showing this embodiment, FIG. 2 is a sectional view taken along line AA in FIG. 1, and FIG. 3 is a circuit diagram. In the figure, 1 is a stator, 2 is a rotor, 3 is a handle, 4 is a heating element, 5 is a switch, and 6 is an insulator.
Claims (1)
回転に支持され、冷却フアンが固着された回転子
とで構成された電動機と、前記枠体の一部に操作
者が把持するハンドル部とを有する電動工具にお
いて、前記ハンドル部に発熱体を設け、該発熱体
の電源を、前記固定子の巻線両端に発生する低電
圧電源から供給するよう構成して成るハンドル部
保温装置。 An electric motor includes a stator held inside a frame, a rotor rotatably supported by the frame and to which a cooling fan is fixed, and a handle held by an operator on a part of the frame. 1. A power tool having a handle part, wherein a heating element is provided in the handle part, and power for the heating element is supplied from a low voltage power source generated at both ends of the winding of the stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13259083U JPS6039478U (en) | 1983-08-26 | 1983-08-26 | Handle heat retention device for portable power tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13259083U JPS6039478U (en) | 1983-08-26 | 1983-08-26 | Handle heat retention device for portable power tools |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6039478U JPS6039478U (en) | 1985-03-19 |
| JPS64305Y2 true JPS64305Y2 (en) | 1989-01-06 |
Family
ID=30299373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13259083U Granted JPS6039478U (en) | 1983-08-26 | 1983-08-26 | Handle heat retention device for portable power tools |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6039478U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60117079U (en) * | 1984-01-13 | 1985-08-07 | 日立工機株式会社 | portable power tools |
-
1983
- 1983-08-26 JP JP13259083U patent/JPS6039478U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6039478U (en) | 1985-03-19 |
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