JPS5871102A - Electromotive circular saw - Google Patents
Electromotive circular sawInfo
- Publication number
- JPS5871102A JPS5871102A JP17093581A JP17093581A JPS5871102A JP S5871102 A JPS5871102 A JP S5871102A JP 17093581 A JP17093581 A JP 17093581A JP 17093581 A JP17093581 A JP 17093581A JP S5871102 A JPS5871102 A JP S5871102A
- Authority
- JP
- Japan
- Prior art keywords
- circular saw
- cover
- housing
- board
- bearing
- 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
- Primary Cells (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は七−夕にて鋸刃を回転駆動する携帯型の電動式
丸鋸に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a portable electric circular saw that rotates a saw blade during Tanabata.
従来のこの種の電動式丸鋸、殊に交流七−夕を用いたも
のにおいては、七−９内のＤ−夕の近くに冷却用のファ
ンヶ設けて七−夕の放熱ケ図っていたが、を−タハウジ
ングに空気吸入及び排出用の開口部がおいているために
、木材等の切屑がｔ−タ因に入る。このために切屑によ
る七−夕のづラシ都の電気的接触不良、Ｄ−夕が高温に
なった時の発煙及び発火の危険性があった。In conventional electric circular saws of this type, especially those using AC Tanabata, a cooling fan was installed near the D-Ya in the 7-9 to dissipate heat from the Tanabata. Since the exhaust housing has openings for air intake and exhaust, wood chips and other debris can enter the exhaust. For this reason, there was a risk of electrical contact failure in the Tanabata nozzle due to chips, and smoke and ignition when the D-yu became hot.
本発明はこのような点に鑑み為されたものであり、その
目的とするところは七−夕が密閉され・ていて切屑が侵
入するおそｎがｌく、しかも放熱が良好に行なわれて過
熱することのない電動式丸鋸を提供するにある。The present invention has been made in view of these points, and its purpose is to reduce the possibility of chips entering because the Tanabata is sealed, and also to ensure good heat dissipation to prevent overheating. We are here to provide you with an electric circular saw that doesn't have to do anything.
以下本発明を図示実施例に基いて詳述する。第１図及び
第２図は一実施例を示すもので、図中ｆｌｌはｔ−タハ
ウジングであって、一端開口が軸受台（９）にて閉じら
ｎて有底筒状とされたこの七−タハウジンマ・・ｆｌｌ
の他方開口端には金属製の基板（６）が固「、′
着されてこの開口端が閉じらｎている。七−タハウジン
グ（１）゛けその内向に磁石（２）が配設されており、
を−タハウジング［１１内のＤ−９室（３）に配置した
０−タ（４）に磁石（２）全対向させている。Ｏ−夕（
４）け０−９軸（５）の一端を軸覚台（９）で、他端を
基板（６）の軸受（１→で支持されたものである。The present invention will be explained in detail below based on illustrated embodiments. Figures 1 and 2 show one embodiment, and in the figures, fl1 is a ta-ta housing, which has a bottomed cylindrical shape with one end opening closed by a bearing stand (9). 7-Tahaujinma...fl
A metal substrate (6) is fixedly attached to the other open end of the heptad housing (1) to close the open end. has been
The magnet (2) is completely opposed to the rotor (4) placed in the D-9 chamber (3) in the rotor housing [11]. O-Evening (
4) One end of the 0-9 shaft (5) is supported by the shaft stand (9), and the other end is supported by the bearing (1→) of the board (6).
基板（６）は軸受（１２１が取着されて七−タハウジン
ジ［１１の開口を覆うカバ一部（７）と、カバ一部（７
１Ｋ一体向に固着される軸受板＋８１とから構成され、
カバ一部（７）と軸受板（８）との間に甲アボックス０
３）が構成されている。カバ一部（７）に配した軸受メ
タル（１４）と、軸受板（８）に配設した軸受（１５）
とで支持さ扛て一端に鋸刃１１８１の取付は用のワラ。The board (6) has a bearing (121 attached to it) and a cover part (7) covering the opening of the seventh housing hinge [11] and a cover part (7).
Consists of 1K bearing plate +81 fixed in one direction,
A box 0 between the cover part (7) and the bearing plate (8)
3) is configured. Bearing metal (14) placed on part of the cover (7) and bearing (15) placed on the bearing plate (8)
The saw blade 1181 is attached to one end of the saw blade, which is supported by a straw.
７ジ（７）が設けられてｈる駆動軸（１６）は、甲アボ
ックス（１３１内において０−９軸（６１に固着し友甲
ア１１９）と噛み合う甲ア翰が固着されている。カバ一
部（７）Ｖ′ｉ鋸刃（１８）の上部局面全種う安全カバ
ー（２１）が一体に延設されている。＋２２１ Ｖ′ｉ
町動安全カバー１．＋２３１＃−を被切断材の上面に載
せられるベース、（至）は側面カバーである。また−２
引は七−タハウジングｔ１１と一体に形成されたハンド
ルであり為 スイッチ１２５）が装着されている。The drive shaft (16) on which the 7-gear (7) is provided has an upper shaft fixed thereto that engages with the 0-9 shaft (fixed to the upper shaft 61 and the lower shaft 119) inside the upper box (131). Cover part (7) V'i A safety cover (21) that covers the entire upper part of the saw blade (18) is integrally extended. +221 V'i
Town safety cover 1. +231#- is a base on which the upper surface of the material to be cut is placed, and (to) a side cover. Also -2
The handle is a handle formed integrally with the seventh housing T11, and a switch 125) is attached thereto.
以上のように構成された電動式丸鋸は、Ｄ−夕室（３）
が略密閉されているわけであるが、各部材を熱良導体で
形成して放熱を図っている。すなわち軸受台（９）や舐
叛（６）についてはこｔ″Ｌをアル五タイ＋セストのよ
うな金属で形成しである。また七−タハウジンジｉｌ＋
にしても同様にアル三タイ＋セストのような熱良導体の
金属で形成してもよいのであるが、本実施例にあってＶ
ｉ軽量化を図るべく、合成樹脂成形品とし、そして熱伝
導率を高めるために合成樹脂・よりも熱伝導度が高いフ
エラ千トのような磁性体粉末を混合した金属系の抄合成
形品としである。０−９室（３）において発生した熱は
熱良導体であるｔ−タハウジンタｉｌ＋や＾（板（６）
）そして軸受台（９）全通して放熱されるものである。The electric circular saw configured as above is D-Yumuro (3)
Although it is almost sealed, each member is made of a good thermal conductor to dissipate heat. In other words, the bearing stand (9) and the rim (6) are made of a metal such as aluminum alloy + sesto.
However, in this embodiment, V
iA synthetic resin molded product to reduce weight, and a metal-based composite molded product mixed with magnetic powder such as Feerasento, which has higher thermal conductivity than synthetic resin, to increase thermal conductivity. It's Toshide. The heat generated in chambers 0-9 (3) is transferred to the t-tahousin tile+ or ^(board (6)), which is a good thermal conductor.
) and heat is radiated through the entire bearing stand (9).
捷たｔ−タハウジング（１）に混入した磁性体粉末は七
−タハウジンタ（１）全ヨークとして磁束のループを形
成することになり、七−夕磁気効率を向上させるもので
ある。The magnetic powder mixed in the shredded t-ta housing (1) forms a loop of magnetic flux as the entire yoke of the t-ta housing (1), thereby improving the Tanabata magnetic efficiency.
第３図及び第４図に他の実施例を示す。これは七−タハ
ウジーＪジｆｉｌ ’に上記のような複合成形品とした
場合、どうしても外力に対して弱くなる点を補なったも
のであって、七−タハウジーＪり（１１にアル巳タイ＋
セスト、硯性体粉末全混合した合成樹脂成形品、あるい
Ｖ′ｉ通常の合成樹脂成形品等からなるカバー（＋０１
ｉ被せである。一端開口縁が基板（６）に固着される
とともにハンドル（２４）が一体に形成されているこの
カバー（則は多数個の放熱孔α刀が設けられたものであ
って内径がｔ−タハウジングｉｌ＋の外径工りも大きく
、カバー（１０）内面とｔ−タハウジングｉｌ＋外向と
の闇に空間ができるようにしである。を−タハウジング
ｉｌｌ外曲はこの空間における放熱孔０υで吸排気され
る空気によって冷却されるものであり、′また七−タハ
ウジンタｉｌ＋はカバー（ｌＯ）の存在によって直接外
力が加わる゛ことがなく、切断した切片等で七−夕を破
損することがないものである。。Other embodiments are shown in FIGS. 3 and 4. This is to compensate for the fact that when a composite molded product like the one mentioned above is made into a composite molded product, it becomes weak against external forces.
Cover (+01
It's covered. This cover has an opening edge fixed to the substrate (6) at one end and a handle (24) integrally formed therein. The outer diameter of the IL+ is also large, so that there is a space between the inner surface of the cover (10) and the outer side of the housing IL+. Furthermore, due to the presence of the cover (lO), direct external force is not applied to the Tanabata, and the Tanabata is not damaged by cut pieces, etc. be..
以上の工うに本発明にあっては七−夕の０−夕室が略密
閉されているために切屑がロータ室に侵入することがな
く、長期間にわたり無保守で運転できる上に、を−タハ
ウジングやこの七−タハウジシタの一端開ロケ閉塞する
とともにロータ軸を支持する基板が熱良導体であるので
放熱も良好に行なわれ、０−９室が略密閉されているに
もかかわらず七−夕の焼損ケ招くことがないものであるAs described above, in the present invention, since the Tanabata zero-tower chamber is substantially sealed, chips do not enter the rotor chamber, and operation can be performed for a long period of time without maintenance. Since one end of the rotor housing and this seven-taper housing is closed off, and the board that supports the rotor shaft is a good thermal conductor, heat dissipation is also good, and even though rooms 0-9 are almost sealed, Tanabata It will not cause burnout of the
第１図は本発明一実施例の斜視図、第２図は同上の断面
図、第３図は他の実施例の斜視図、第４図は同上の断面
図であり、（１）けｔ−タハウジング、＋２１１’を磁
石、（３）はロータ室、（４）はｏ −夕、（５１Ｖｉ
ロータ軸、ｆ６＋Ｖｉ基板、（７）はカバ一部、１ｌＯ
ｔ Ｖｉカバー、α１１Ｖ′ｉ放熱孔を示す。
代理人 弁理士 石 １）長 七Fig. 1 is a perspective view of one embodiment of the present invention, Fig. 2 is a sectional view of the same, Fig. 3 is a perspective view of another embodiment, and Fig. 4 is a sectional view of the same. - rotor housing, +211' is magnet, (3) is rotor chamber, (4) is o - evening, (51Vi
Rotor shaft, f6+Vi board, (7) is part of the cover, 1lO
tVi cover, α11V'i heat radiation hole is shown. Agent Patent Attorney Ishi 1) Choshichi
Claims (3)
金属系の有底筒状のｔ−タハウジングの開口端を、軸受
と丸鋸をカバーするカバ一部とが一体的に形成された金
属製の基板で閉塞し、七−タハウジーＪジと基板とで略
密閉された０−夕室内に配設した〇−夕の０−９軸を基
板の軸受で支持したことを特徴とする電動式丸鋸。(1) A bearing and a part of a cover that covers a circular saw are integrally formed at the open end of a metal bottomed cylindrical housing made of a good thermal conductor and equipped with a magnet on the inner surface. The electric motor is characterized in that the 0-9 axes of the 0-9 are supported by bearings on the base board, and the 0-9 axes are disposed in a 0-9 chamber that is closed with a metal board and substantially sealed by the 7-tahouji Jji and the board. Ceramic circular saw.
に含有させたものであることを特徴とする特許請求の範
囲第１項記載の電動式丸鋸。(2) The electric circular saw according to claim 1, wherein the 7-tahaujishiji is a synthetic resin molded product containing magnetic powder.
連結されたカバーで被覆されており、放熱孔を有するこ
のカバーと七−タハウジンジ外面との間に空間が設けら
れていることを特徴とする特許請求の範囲第１項又は第
２項記載の電動式丸鋸。(3) One end of the 7-ta housing 1jVi is covered with a cover connected to the substrate, and a space is provided between this cover having heat radiation holes and the outer surface of the 7-ta housing. An electric circular saw according to claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17093581A JPS5871102A (en) | 1981-10-26 | 1981-10-26 | Electromotive circular saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17093581A JPS5871102A (en) | 1981-10-26 | 1981-10-26 | Electromotive circular saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5871102A true JPS5871102A (en) | 1983-04-27 |
Family
ID=15914089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17093581A Pending JPS5871102A (en) | 1981-10-26 | 1981-10-26 | Electromotive circular saw |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5871102A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5222504B2 (en) * | 1973-07-09 | 1977-06-17 | ||
| JPS542365A (en) * | 1977-06-09 | 1979-01-09 | Mitsui Toatsu Chemicals | Production of powdery soft roe |
-
1981
- 1981-10-26 JP JP17093581A patent/JPS5871102A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5222504B2 (en) * | 1973-07-09 | 1977-06-17 | ||
| JPS542365A (en) * | 1977-06-09 | 1979-01-09 | Mitsui Toatsu Chemicals | Production of powdery soft roe |
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