JPS64306Y2 - - Google Patents
Info
- Publication number
- JPS64306Y2 JPS64306Y2 JP16774783U JP16774783U JPS64306Y2 JP S64306 Y2 JPS64306 Y2 JP S64306Y2 JP 16774783 U JP16774783 U JP 16774783U JP 16774783 U JP16774783 U JP 16774783U JP S64306 Y2 JPS64306 Y2 JP S64306Y2
- Authority
- JP
- Japan
- Prior art keywords
- heating element
- stator
- frame
- handle
- temperature
- 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 19
- 238000004804 winding Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims 1
- 240000000599 Lentinula edodes Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 208000028571 Occupational disease Diseases 0.000 description 1
- 208000003782 Raynaud disease Diseases 0.000 description 1
- 208000012322 Raynaud phenomenon Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000007257 malfunction Effects 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
ハンドル部に保温に関するものである。[Detailed Description of the Invention] The present invention relates to keeping a handle portion of a power tool held by an operator warm.
携帯用電動工具の椎茸栽培用の電気ドリル（椎
茸ドリル）で、固定子の巻線両端に発生する低電
圧より発熱体に電源を供給し、ハンドル部に前記
発熱体を設け保温を行なつているが、電気ドリル
の負荷変動により、巻線両端に発生する低電圧が
変化し、発熱体の温度が変化し、ハンドル部の保
温として、一定温度に保つことができなかつた。 An electric drill for cultivating shiitake mushrooms (shiitake mushroom drill), which is a portable power tool, supplies power to a heating element from the low voltage generated at both ends of the winding of the stator, and the heating element is installed in the handle part to keep warm. However, due to load fluctuations on the electric drill, the low voltage generated at both ends of the winding changes, causing the temperature of the heating element to change, making it impossible to keep the handle at a constant temperature.
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、負荷変
動があつても一定の温度に制御し保温するもので
ある。 The purpose of the present invention is to solve the above-mentioned problems of the prior art, and to control and keep the handle portion held by the operator at a constant temperature even when the load fluctuates.
本考案は、電動機運転中の固定子と回転子の分
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、発熱
体の温度を温度制御装置（サーモスタツト）によ
り、ハンドル部の温度を一定温度にしたもので、
発熱体の電圧が低いため安全性を向上すること
と、作業性を向上するよう工夫したものである。 This invention focuses on the shared voltage between the stator and rotor during motor operation, and supplies the low voltage generated at both ends of the stator winding to the heating element installed inside the handle, and controls the temperature of the heating element with a temperature control device. The temperature of the handle is kept at a constant temperature using a thermostat.
It was devised to improve safety and workability since the voltage of the heating element 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.
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。 A stator 1 and a rotor 2 are housed inside the 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
３の内周面に沿つて、ステンレス板状等の発熱体
４が配設されている。この発熱体４は、第２図に
示すように、シリコンゴム等の絶縁体６で被覆さ
れている。発熱体４の上面には一定温度に制御す
るサーモスタツト８が接着剤等で固定されてい
る。発熱体４とサーモスタツト８は、直列に配線
されており、発熱体４の温度を一定温度に制御し
ている。発熱体４の温度が異常に上昇し、更に外
気温が上昇した場合やサーモスタツト８が故障し
た場合、操作者が把持し、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４、サーモ
スタツト８の回路を開閉できるよう配設してい
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, a heating element 4 made of a stainless steel plate or the like is arranged along the inner peripheral surface of the handle part 3 using the voltage generated at both ends of the stator winding as a power source. . As shown in FIG. 2, this heating element 4 is covered with an insulator 6 such as silicone rubber. A thermostat 8 for controlling the temperature at a constant temperature is fixed to the upper surface of the heating element 4 with adhesive or the like. The heating element 4 and the thermostat 8 are wired in series to control the temperature of the heating element 4 to a constant temperature. If the temperature of the heating element 4 rises abnormally and the outside temperature further rises, or if the thermostat 8 malfunctions, the heating element 4, It is arranged so that the circuit of the thermostat 8 can be opened and closed.
また発熱体４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、固定子巻線の巻線比に応
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。 Furthermore, by taking out the power supply to the heating element 4 from a part of the stator winding, it is possible to supply a lower voltage than in this embodiment, depending on the winding 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
持部に発熱体及びサーモスタツトを配設し、一定
温度に保温したので、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 is used as a power source while the motor is operating, and a heating element and thermostat are installed in the handle grip to maintain the temperature at a constant temperature. It can improve work efficiency during cold seasons and prevent occupational diseases such as Raynaud's syndrome.
第１図は、本実施例を示す要部縦断側面図、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……固定子、２……回転子、３…
…ハンドル部、４……発熱体、５……スイツチ、
６……絶縁体、７……外枠、８……サーモスタツ
ト。
FIG. 1 is a longitudinal sectional side view of a main part 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... stator, 2... rotor, 3...
...Handle part, 4...Heating element, 5...Switch,
6...Insulator, 7...Outer frame, 8...Thermostat.
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携帯用電動
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し、発熱体の温度制御用
の制御装置を付加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 an electric motor held by an operator in a part of the frame. In a portable power tool having a handle portion, a heating element is provided in the handle portion,
A handle heat insulating device comprising: supplying power to the heating element from a low voltage power source generated at both ends of the winding of the stator; and adding a control device for temperature control of the heating element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16774783U JPS6074977U (en) | 1983-10-28 | 1983-10-28 | Handle heat retention device for portable power tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16774783U JPS6074977U (en) | 1983-10-28 | 1983-10-28 | Handle heat retention device for portable power tools |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6074977U JPS6074977U (en) | 1985-05-25 |
| JPS64306Y2 true JPS64306Y2 (en) | 1989-01-06 |
Family
ID=30366917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16774783U Granted JPS6074977U (en) | 1983-10-28 | 1983-10-28 | Handle heat retention device for portable power tools |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6074977U (en) |
-
1983
- 1983-10-28 JP JP16774783U patent/JPS6074977U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6074977U (en) | 1985-05-25 |
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