JP2546089Y2 - Electric tool - Google Patents
Electric toolInfo
- Publication number
- JP2546089Y2 JP2546089Y2 JP9350191U JP9350191U JP2546089Y2 JP 2546089 Y2 JP2546089 Y2 JP 2546089Y2 JP 9350191 U JP9350191 U JP 9350191U JP 9350191 U JP9350191 U JP 9350191U JP 2546089 Y2 JP2546089 Y2 JP 2546089Y2
- Authority
- JP
- Japan
- Prior art keywords
- housing
- peripheral surface
- electric tool
- outer peripheral
- power tool
- 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 - Lifetime
Links
Description
【０００１】[0001]
【産業上の利用分野】本考案は小形ディスクグラインダ
のようにハウジングを握って操作する電動工具の改良に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a power tool which is operated by holding a housing like a small disc grinder.
【０００２】[0002]
【従来の技術】従来この種の電動工具は、操作する手の
スベリ止めとして、ハウジング外周部に多数個の突起部
を設けていた。2. Description of the Related Art Conventionally, a power tool of this type has a large number of protrusions provided on an outer peripheral portion of a housing to prevent slippage of an operating hand.
【０００３】[0003]
【考案が解決しようとする課題】この方式の、スベリ止
めは、製造業の人手不足により、高齢者及び婦女子が、
この種の電動工具を使用するようになった昨今、握り径
が太くなり使いづらいと言う問題があった。[Problems to be solved by the invention] In this method, slip prevention is performed by the elderly and women and women due to the shortage of manpower in the manufacturing industry.
Recently, there has been a problem that a grip diameter becomes large and it is difficult to use the power tool recently.
【０００４】又、ハウジング内に電動機を内装している
ことから、電動機の発熱等により、ハウジングの温度が
上がり、長時間連続して使えない問題があり、電動機の
温度を下げることも然る事ながらハウジング自体の冷却
も要求されていた。Further, since the motor is provided inside the housing, there is a problem that the temperature of the housing rises due to heat generation of the motor or the like, and the housing cannot be used continuously for a long time. However, cooling of the housing itself was also required.
【０００５】本考案の目的は、握り径が太くならないス
ベリ止めを提供すると共にハウジングの冷却効果を高
め、長時間連続して使用出来る電動工具を提供すること
である。SUMMARY OF THE INVENTION An object of the present invention is to provide a power tool which can be used continuously for a long period of time while providing a sliding stop which does not increase the grip diameter and enhancing the cooling effect of the housing.
【０００６】[0006]
【課題を解決するための手段】上記目的は、スベリ止め
をハウジング外周部にハウジング基本径に対して凹形の
溝とし、そのへこんだ分を内周面に突起として出張らす
ことで達成される。The above object can be attained by providing the slip stopper on the outer peripheral portion of the housing as a concave groove with respect to the basic diameter of the housing and projecting the recessed portion as a protrusion on the inner peripheral surface. You.
【０００７】[0007]
【作用】上記のように構成されたハウジング外周面の凹
形の溝部は、握り径を太くすることなくスベリ止めの役
割を果す。又、ハウジング内周面の突起部は、ハウジン
グ内周面の冷却表面積を増すことが出来るのでハウジン
グの温度が低減出来、長時間連続して使用出来る。The concave groove on the outer peripheral surface of the housing configured as described above plays a role of preventing slippage without increasing the grip diameter. In addition, since the protrusion on the inner peripheral surface of the housing can increase the cooling surface area of the inner peripheral surface of the housing, the temperature of the housing can be reduced, and the housing can be used continuously for a long time.
【０００８】[0008]
【実施例】本考案による実施例を図１、図２に示す。1 and 2 show an embodiment according to the present invention.
【０００９】ハウジング１の内部に電動機２が止めネジ
３により固定されている。ハウジング１の外周面下側に
は、凹形溝部１ａが多数個一定の間隔で中心軸に対して
放射状に配設されている。ハウジング１の内周面には、
前記凹形溝部１ａと対向し、ハウジング肉厚が均一にな
るように突起部１ｂが配設されている。An electric motor 2 is fixed inside a housing 1 by a set screw 3. On the lower side of the outer peripheral surface of the housing 1, a large number of concave grooves 1a are radially arranged with respect to the central axis at regular intervals. On the inner peripheral surface of the housing 1,
A protruding portion 1b is provided so as to face the concave groove portion 1a and to make the housing thickness uniform.
【００１０】凹形溝部１ａは、作業者がハウジング１を
握った場合指先が凹部に引っ掛りスベリ止めの役割を果
す。ハウジング１の内周面の突起部１ｂは、電動機２の
冷却ファン（図示せず）で生ずる冷却風路の中に位置し
突起がないもの（従来技術）と比較して冷却表面積が広
くハウジングの温度が低減出来る。When the operator grips the housing 1, the fingertip is caught in the concave groove portion 1 a and serves to prevent slippage. The protrusion 1b on the inner peripheral surface of the housing 1 is located in a cooling air passage generated by a cooling fan (not shown) of the electric motor 2 and has a larger cooling surface area than that of a housing having no protrusion (prior art). Temperature can be reduced.
【００１１】本実施例は、凹形溝部１ａを下側にのみ設
けた例を揚げたが全周に渡って配設しても良く、この場
合更にハウジングの冷却効果が高まる。In this embodiment, the example in which the concave groove portion 1a is provided only on the lower side is lifted, but it may be provided over the entire circumference, in which case the cooling effect of the housing is further enhanced.
【００１２】[0012]
【考案の効果】本考案によれば、ハウジング外周面に凹
形溝部と内周面に突起部を設けたことで、 （１） 握り径が太くならないスベリ止めが提供でき操
作性が向上出来る。According to the present invention, by providing a concave groove on the outer peripheral surface of the housing and a projection on the inner peripheral surface, (1) a sliding stop that does not increase the grip diameter can be provided and operability can be improved.
【００１３】（２） ハウジングの温度が低減出来、長
時間連続して使用出来る。(2) The temperature of the housing can be reduced and it can be used continuously for a long time.
【図１】 本考案になる電動工具の一実施例を示す側面
図である。FIG. 1 is a side view showing an embodiment of a power tool according to the present invention.
【図２】 図１のＡ−Ａ線断面図である。FIG. 2 is a sectional view taken along line AA of FIG.
【図３】 従来技術を示す側面図である。FIG. 3 is a side view showing a conventional technique.
１ ハウジング ２ 電動機 ３ 止めメネジ DESCRIPTION OF SYMBOLS 1 Housing 2 Electric motor 3 Stop screw
Claims (1)
し、前記ハウジングを握って操作する電動工具におい
て、前記ハウジングの肉厚が均一になるように、外周面
に多数個の凹形溝部と内周面に突起部を設けたことを特
徴とする電動工具。1. An electric power tool having an electric motor provided inside a housing and operated by gripping the housing, wherein a plurality of concave grooves are formed on an outer peripheral surface of the electric tool so that the thickness of the housing is uniform. An electric tool, wherein a projection is provided on a peripheral surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9350191U JP2546089Y2 (en) | 1991-11-14 | 1991-11-14 | Electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9350191U JP2546089Y2 (en) | 1991-11-14 | 1991-11-14 | Electric tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0541662U JPH0541662U (en) | 1993-06-08 |
| JP2546089Y2 true JP2546089Y2 (en) | 1997-08-27 |
Family
ID=14084099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9350191U Expired - Lifetime JP2546089Y2 (en) | 1991-11-14 | 1991-11-14 | Electric tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2546089Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2075095A2 (en) | 2007-12-26 | 2009-07-01 | Makita Corporation | Power tool |
| JP2013090959A (en) * | 2009-02-27 | 2013-05-16 | Makita Corp | Handy cleaner |
-
1991
- 1991-11-14 JP JP9350191U patent/JP2546089Y2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2075095A2 (en) | 2007-12-26 | 2009-07-01 | Makita Corporation | Power tool |
| EP2075095A3 (en) * | 2007-12-26 | 2010-09-01 | Makita Corporation | Power tool |
| JP2013090959A (en) * | 2009-02-27 | 2013-05-16 | Makita Corp | Handy cleaner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0541662U (en) | 1993-06-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19970408 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R323531 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| EXPY | Cancellation because of completion of term |