JP2004230538A - Power tool - Google Patents

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Publication number
JP2004230538A
JP2004230538A JP2003025315A JP2003025315A JP2004230538A JP 2004230538 A JP2004230538 A JP 2004230538A JP 2003025315 A JP2003025315 A JP 2003025315A JP 2003025315 A JP2003025315 A JP 2003025315A JP 2004230538 A JP2004230538 A JP 2004230538A
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JP
Japan
Prior art keywords
tool
housing
tip
holding portion
tip 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.)
Pending
Application number
JP2003025315A
Other languages
Japanese (ja)
Inventor
Takashi Ozawa
隆史 小澤
Kenichi Takaada
賢一 高阿田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koki Holdings Co Ltd
Original Assignee
Hitachi Koki Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Koki Co Ltd filed Critical Hitachi Koki Co Ltd
Priority to JP2003025315A priority Critical patent/JP2004230538A/en
Publication of JP2004230538A publication Critical patent/JP2004230538A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a power tool wherein various tip end tools are easily and securely stored in a tip end tool holding portion provided on a housing, even when a diameter of a main body portion is made so small as to interfere with an inner structure, and operability that does not make a worker feel fatigue and strange, even when the main body portion is held at a rear end portion and pushed forward by hand, and the tip end holding portion with excellent operability are provided. <P>SOLUTION: In the power tool comprising a motor as a driving force, the housing 1 storing the motor, the tip end tool housing portion 4 provided in the housing 1, and the tip end tool 5 stored in the tip end tool holding portion 4, a hollowed portion is provided in the housing 1. A protecting wall 6 projecting out from the hollowed portion forms the tip end tool holding portion 4. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、モータ等を収容するハウジングに、ドライバビット等の先端工具を着脱自在に収納するための先端工具保持部を有する電動工具に関するものである。
【0002】
【従来の技術】
従来におけるコードレスドライバドリル等の電動工具に形成されていた先端工具保持機構を図20及び図21を用いて説明する。上記電動工具は、駆動源であるモータと、モータの回転動力を伝達するための減速機構部と、該減速機構からの動力により回転されるドライバビット等の先端工具2を保持するチャックと、チャックに着脱可能な先端工具へのトルク調整機構とを有し、上記モータ等は蓄電池の着脱自在な装着部を有するハンドル部と一体的に形成されて成る樹脂製のハウジング1に収容されている。上記電動工具は主にネジ等を被削材に締結する際に使用されるものであり、作業を行っていくうちに摩耗或いは破損等によりチャックに装着されている先端工具を別の先端工具2に交換して使用しなければならないため、交換を要する場合には作業者の身近な所に交換用の先端工具2が準備されていると、作業効率を低下させることなく容易且つ確実に先端工具2の交換作業を行うことができる。そのため、上記ハウジング1における外側面の一部には、利便性を考慮してチャックに保持されている先端工具とは別の先端工具2を予め保持可能とする先端工具保持部3を有する電動工具が提供されている。
【0003】
また、他の先端工具保持部としては、特許文献に示されるように、ハウジングから突出して先端工具を保持するための先端工具保持部や、ハンドル部下部に先端工具保持部が設けられるものがある。
【特許文献】
実開平6−80564
特開平9−216171
【0004】
【発明が解決しようとする課題】
近年、電動工具に対する小形軽量化が求められているが、あまり小型化しすぎるとハウジングに先端工具保持部を設けることが難しくなってしまう。つまりモータ等を収容するハウジングの外径が細くなってしまうと、モータ等の内部機構に干渉してハウジングに先端工具保持部を設けることができなくなってしまう。
仮に上述した電動工具において従来のようにハウジングに先端工具保持部を設け先端工具を保持すると、先端工具がハウジング内にしっかり収容されないため、結果的にハウジング外に先端工具が露出した状態で、しかも弾性を有する金具によってのみ保持される構成になってしまうことから、振動(衝撃)等により先端工具保持部から先端工具が外れてしまうという問題を招いてしまう可能性がある。また、使用状態において、例えば片手でハンドル部を把持し、もう一方の手を本体胴体部の後端部に添えて前方へ押しつけるような作業を行った場合には、上記後端部に添えた手のひらに先端工具保持部の後端部の角が突き当たってしまうため、作業者に疲労感や違和感を与えてしまうことから作業性及び操作性の低下が低下してしまう問題を招いてしまう可能性がある。
【0005】
本発明の目的は、上記問題を解消し、本体胴体部の径が小さくなり内部構造と干渉しそうな場合でも種々の先端工具を容易且つ確実にハウジングに設けた先端工具保持部に収容可能な電動工具を提供することである。
【0006】
また、本発明の目的は、本体胴体部の後端部に手を添えて前方に押しつける作業を行った場合でも作業者に疲労感や違和感を与えることのない操作性及び操作性に優れた先端工具保持部を有する電動工具を提供することである。
【0007】
【課題を解決するための手段】
上記目的は、駆動源であるモータと、モータを収容するハウジングと、ハウジングに設けた先端工具保持部と、先端工具保持部内に収容される先端工具とを備えた電動工具において、ハウジングに抉れ部を設け、抉れ部から突出する保護壁により先端工具保持部を形成することにより達成される。
【0008】
【発明の実施の形態】
本実施例におけるコードレスドライバドリル等の電動工具に設ける先端工具保持部4を図1〜図19を用いて説明する。図1は本実施例における電動工具の一実施例を示す外観正面図、図2は図1に示す電動工具の左側面図、図3は図1に示す電動工具の右側面図、図4は図1に示す電動工具の平面図、図5は本実施例における電動工具を横転させた際の先端工具保持部4と設置面12との関係を示す説明図、図6は本実施例における電動工具の他の実施例を示す外観正面図、図7は図6に示す電動工具の左側面図、図8は図6に示す電動工具の右側面図、図9は図6に示す電動工具の平面図、図10は図1の電動工具を作業者が把持して使用する場合の一例を示す状態説明図、図11は図6の電動工具を作業者が把持して使用する場合の一例を示す状態説明図、図12は図1及び図6の電動工具に設けた先端工具保持部を示す縦断面図、図13は図1及び図6の電動工具に設けた先端工具保持部4に対して先端工具5を着脱する場合の一例を示す状態説明図、図14はコード17付の電動工具に同様の先端工具保持部を設けた一例を示す外観正面図、図15は本実施例における電動工具の更に他の実施例を示す外観正面図、図16は図15に示す電動工具の左側面図、図17は図15に示す電動工具の右側面図、図18は図15に示す電動工具の平面図、図19は本実施例における先端工具保持部4の他の実施例を示す外観正面図である。
【0009】
図1及び図4に示す電動工具は、駆動源であるモータと、モータの回転動力を伝達するための減速機構部と、該減速機構からの動力により回転されるドライバビット等の先端工具を保持するチャックと、チャックに着脱可能な先端工具へのトルク調整機構とを有し、上記モータ等は蓄電池の着脱自在な装着部を有するハンドル部と一体的に形成されて成る樹脂製のハウジング1に収容されている。上記電動工具は主にネジ等を被削材に締結する際に使用されるものであり、作業を行っていくうちに摩耗或いは破損等によりチャックに装着されている先端工具を別の先端工具5に交換して使用しなければならないため、交換を要する場合には作業者の身近な所に交換用の先端工具5が準備されていると、作業効率を低下させることなく容易且つ確実に先端工具5の交換作業を行うことができる。そのため、上記ハウジング1における外側面の一部には、利便性を考慮してチャックに保持されている先端工具とは別の先端工具5を予め保持可能とする先端工具保持部4を有する電動工具が提供されている。
【0010】
上記ハウジング1は、小形軽量化を図るため、モータ付近のハウジング1に抉れ部が施されており、この抉れ部はハウジング1により形成される本体胴体部の長手方向側面に形成されている。上記先端工具保持部4は、上記抉れ部内に位置し更に当該抉れ部から突出する保持壁6により形成されており、保持壁6により先端工具5の全周囲むような大きさで形成されている。また、保護壁6の高さは図5に示すように矢印方向に電動工具を横転させた際、設置面12に保護壁6が先に接触する高さになっており、先端工具5が設置面12に当たらない形状になっているため、先端工具5が脱落することなく安定して保持することができる。
つまり、先端工具保持部4に先端工具5を取り付け時の高さよりもっと突出した高さに保護壁6の高さが設定されている。
【0011】
また、図1〜図4及び図6〜図9に示す先端工具保持部4の保護壁6のうち後端部に位置する保護壁14を削除し、且つあとに残った上下の壁の後端部13の部位に角R9(曲面)を形成することにより、図10及び図11に示す作業、即ちハンドル部を片手15aで把持し、もう一方の手15bで本体胴体部1の後端部を前方に押しつける作業を行う場合に、本体胴体部1の後端部に添えた手15bのひらに先端工具保持部4の後端部の壁の角13が当たり作業者に対して疲労感や違和感を与えることを極力なくすことができるようになる。なお、図1〜図4の方が図6〜図9に示す先端工具保持部4より大きい曲面を有している。
【0012】
また、図12に示すように先端工具保持部4内には、先端工具5の脱落を防ぐために先端工具5の外径と同等或いはそれより小さい内径を有する弾性体7が嵌め込まれて設けられており、先端工具5の挿入時に弾性体7を弾性変形させ保持壁6の内壁に先端工具5を押し付ける形で長手方向に直交する方向への抜け止めを防ぎながら先端工具5を位置決め保持している。また、先端工具保持部4の保持壁6の一部で且つ長手方向に直交する方向に突出する突起10が上下に2箇所設けられており、この突起10が先端工具5の円周方向(径方向)に形成される環状溝11に係合することにより、先端工具5の長手方向への移動を規制しながら保持している。また、先端工具保持部4を形成する保持壁6のうちチャック側或いは反チャック側に位置する部分に開口端部を設けることにより、種々の先端工具が保持可能となる。なお、先端工具保持部4内から先端工具5を取り出す場合にも上述したように弾性体7を弾性変形させ且つ突起10と環状溝11との係合を解除することで可能となる。
【0013】
また、本実施例では、突起10がモータ軸と直交する方向に延びる上下に水平な棒状形状であり、更に断面略楕円形状を成す突起10が先端工具保持部4の内周に沿って設けられているが、先端工具保持部4内から先端工具5を容易に取り出せる形状のものであれば他の形状であっても良い。
【0014】
また、先端工具保持部4を形成する保護壁6の上下一部に切欠き8を設けることにより、図13に示すように先端工具5を指先でつまんで矢印方向に取り出し易くすることができる。
【0015】
また、図14に示すように本実施例における先端工具保持部4はコードレスドライバドリル等の電動工具以外にも外部から電源供給されるコード式の電動工具にも適用可能である。
【0016】
また、図15〜図18に示すように、本実施例における先端工具保持部4は、ハウジング1の両側面に設けても良く、これにより先端工具5の収納本数を増やすことができる。
【0017】
また、図19に示すように本体胴体部1の長さより長くならない程度までの先端工具保持部4を広げ設けることでより種々の長さを有する先端工具が収容可能になる。
【0018】
以上のことから、電動工具の小形軽量化を図るためにモータ周辺のハウジング1の外径を抉れ部を設けて小さくしたとしても、抉れ部から立設して設けられる保護壁6により先端工具5を十分に収容可能な先端工具保持部4を形成することができるため、先端工具5を容易且つ確実に着脱することができる。
【0019】
また、本体胴体部1の後端部に手を添えて前方に押しつける作業を行った場合でも作業者に疲労感や違和感を与えることがなくなる。
【0020】
【発明の効果】
本発明によれば、本体胴体部の径が小さくなり内部構造と干渉しそうな場合でも種々の先端工具を容易且つ確実にハウジングに設けた先端工具保持部に収容可能な電動工具を提供することができる。
【0021】
また、本発明の目的は、本体胴体部の後端部に手を添えて前方に押しつける作業を行った場合でも作業者に疲労感や違和感を与えることのない操作性及び操作性に優れた先端工具保持部を有する電動工具を提供することができる。
【図面の簡単な説明】
【図1】本発明になる電動工具の一実施例を示す外観正面図である。
【図2】図1に示す電動工具の左側面図である。
【図3】図1に示す電動工具の右側面図である。
【図4】図1に示す電動工具の平面図である。
【図5】本発明になる電動工具を横転させた際の先端工具保持部と設置面との関係を示す説明図である。
【図6】本発明になる電動工具の他の実施例を示す外観正面図である。
【図7】図6に示す電動工具の左側面図である。
【図8】図6に示す電動工具の右側面図である。
【図9】図6に示す電動工具の平面図である。
【図10】図1の電動工具を作業者が把持して使用する場合の一例を示す状態説明図である。
【図11】図6の電動工具を作業者が把持して使用する場合の一例を示す状態説明図である。
【図12】図1及び図6の電動工具に設けた先端工具保持部を示す縦断面図である。
【図13】図1及び図6の電動工具に設けた先端工具保持部に対して先端工具を着脱する場合の一例を示す状態説明図である。
【図14】コード付の電動工具に同様の先端工具保持部を設けた一例を示す外観正面図である。
【図15】本発明になる電動工具の更に他の実施例を示す外観正面図である。
【図16】図15に示す電動工具の左側面図である。
【図17】図15に示す電動工具の右側面図である。
【図18】図15に示す電動工具の平面図である。
【図19】本発明になる先端工具保持部の他の実施例を示す外観正面図である。
【図20】従来における電動工具の一実施例を示す外観正面図である。
【図21】従来における電動工具の先端工具保持部の一実施例を示す一部省略縦断面図である。
【符号の説明】
1はハウジング、2はハンドル部、3は電動工具、4は先端工具保持部、5は先端工具、6はストッパ壁、7は弾性体、8は切り欠き、9は角R、10は突起、11は環状溝、12は設置面、13は角部、14は先端工具保持部の後端部壁、15aは手,15bは手、16は蓄電池、17はコードである。
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a power tool having a tip tool holding portion for detachably storing a tip tool such as a driver bit in a housing containing a motor or the like.
[0002]
[Prior art]
A tip tool holding mechanism formed on a power tool such as a conventional cordless driver drill will be described with reference to FIGS. The power tool includes a motor as a drive source, a reduction mechanism for transmitting rotational power of the motor, a chuck for holding a tip tool 2 such as a driver bit rotated by power from the reduction mechanism, and a chuck. The motor and the like are housed in a resin housing 1 integrally formed with a handle portion having a detachable mounting portion for a storage battery. The above power tool is mainly used for fastening a screw or the like to a work material. During the work, a power tool attached to a chuck due to wear or damage is replaced with another power tool 2. In the case where replacement is required, if the replacement tip tool 2 is prepared near the operator, the tip tool can be easily and reliably provided without lowering the working efficiency. 2 can be replaced. For this reason, an electric tool having a tip tool holding portion 3 that can hold in advance a tip tool 2 different from the tip tool held by the chuck for convenience in a part of the outer surface of the housing 1. Is provided.
[0003]
Further, as another tip tool holding portion, as shown in Patent Document, there is a tip tool holding portion that projects from a housing to hold a tip tool, or a tip tool holding portion provided at a lower portion of a handle portion. .
[Patent Document]
6-80564
JP-A-9-216171
[0004]
[Problems to be solved by the invention]
In recent years, the power tool has been required to be reduced in size and weight. However, if the power tool is too small, it becomes difficult to provide a tip tool holding portion in the housing. In other words, if the outer diameter of the housing that houses the motor and the like becomes thin, it becomes impossible to provide the tip tool holding portion in the housing because it interferes with the internal mechanism such as the motor.
If the power tool described above is provided with a tip tool holding portion in the housing as in the prior art and holds the tip tool, the tip tool is not securely housed in the housing, and as a result, the tip tool is exposed outside the housing, and Since the configuration is held only by the elastic metal fitting, there is a possibility that a problem that the tip tool comes off from the tip tool holding portion due to vibration (shock) or the like may be caused. In addition, in the state of use, for example, when performing the work of holding the handle portion with one hand and pressing the other hand forward along with the rear end of the body portion of the body, the handle is attached to the rear end. Since the corner of the rear end portion of the tool holding portion of the tip tool abuts against the palm, it may give a worker a feeling of fatigue or discomfort, which may lead to a decrease in workability and operability. There is.
[0005]
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problem, and to easily and surely accommodate various tip tools in a tip tool holding portion provided in a housing even when the diameter of a main body part is likely to interfere with an internal structure. Is to provide tools.
[0006]
Further, an object of the present invention is to provide a tip with excellent operability and operability that does not give a worker a feeling of fatigue or discomfort even when performing an operation of pressing forward with a hand attached to the rear end of the main body torso. An object of the present invention is to provide an electric tool having a tool holder.
[0007]
[Means for Solving the Problems]
An object of the present invention is to provide a power tool including a motor as a drive source, a housing for housing the motor, a tip tool holding portion provided in the housing, and a tip tool housed in the tip tool holding portion. This is achieved by providing a portion and forming a tip tool holding portion by a protective wall protruding from the recess.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
A tip tool holding portion 4 provided on an electric tool such as a cordless driver drill in the present embodiment will be described with reference to FIGS. 1 is an external front view showing an embodiment of the power tool according to the present embodiment, FIG. 2 is a left side view of the power tool shown in FIG. 1, FIG. 3 is a right side view of the power tool shown in FIG. FIG. 5 is a plan view of the power tool shown in FIG. 1, FIG. 5 is an explanatory view showing the relationship between the tip tool holder 4 and the installation surface 12 when the power tool in the present embodiment is turned over, and FIG. FIG. 7 is a left side view of the power tool shown in FIG. 6, FIG. 8 is a right side view of the power tool shown in FIG. 6, and FIG. 9 is a view of the power tool shown in FIG. FIG. 10 is a plan view, FIG. 10 is a state explanatory view showing an example of a case where an operator grips and uses the power tool of FIG. 1, and FIG. 11 is an example of a case where the operator grips and uses the power tool of FIG. 6. FIG. 12 is a longitudinal sectional view showing a tip tool holding portion provided in the electric tool shown in FIGS. 1 and 6, and FIG. FIG. 14 is a state explanatory view showing an example in which the tip tool 5 is attached to and detached from the tip tool holding section 4 provided in the electric tool. FIG. 14 shows an example in which a similar tip tool holding section is provided in an electric tool with a cord 17. FIG. 15 is an external front view showing still another embodiment of the power tool in this embodiment, FIG. 16 is a left side view of the power tool shown in FIG. 15, and FIG. 17 is a right side of the power tool shown in FIG. FIG. 18 is a plan view of the power tool shown in FIG. 15, and FIG. 19 is an external front view showing another embodiment of the tip tool holder 4 in the present embodiment.
[0009]
The power tool shown in FIGS. 1 and 4 holds a motor as a drive source, a speed reduction mechanism for transmitting the rotational power of the motor, and a tip tool such as a driver bit rotated by the power from the speed reduction mechanism. And a torque adjusting mechanism for a tip tool detachable from the chuck. The motor and the like are provided in a resin housing 1 integrally formed with a handle portion having a detachable mounting portion for a storage battery. Is contained. The power tool is mainly used for fastening a screw or the like to a work material. As the work is performed, a tool attached to the chuck due to wear or damage is replaced with another tool 5. In the case where replacement is required, if a replacement tip tool 5 is prepared near an operator, the tip tool can be easily and reliably provided without lowering work efficiency. 5 can be replaced. For this reason, an electric tool having a tip tool holding portion 4 that can hold in advance a tip tool 5 that is different from the tip tool held by the chuck in consideration of convenience on a part of the outer surface of the housing 1. Is provided.
[0010]
In order to reduce the size and weight of the housing 1, the housing 1 near the motor is provided with a recessed portion, and the recessed portion is formed on a longitudinal side surface of the body portion formed by the housing 1. . The tip tool holding portion 4 is formed by a holding wall 6 which is located inside the gouge portion and protrudes from the gouge portion, and is formed by the holding wall 6 so as to have a size so as to entirely surround the tip tool 5. I have. When the power tool is turned over in the direction of the arrow as shown in FIG. 5, the height of the protection wall 6 is such that the protection wall 6 comes into contact with the installation surface 12 first. Since it has a shape that does not hit the surface 12, the tip tool 5 can be stably held without falling off.
That is, the height of the protection wall 6 is set to a height that protrudes more than the height when the tip tool 5 is attached to the tip tool holding portion 4.
[0011]
Also, the protection wall 14 located at the rear end of the protection wall 6 of the tip tool holding portion 4 shown in FIGS. 1 to 4 and FIGS. 6 to 9 is deleted, and the rear ends of the upper and lower walls remaining behind are removed. By forming a corner R9 (curved surface) at the portion of the portion 13, the operation shown in FIGS. 10 and 11, that is, the handle portion is gripped with one hand 15a, and the rear end portion of the main body 1 is gripped with the other hand 15b. When performing the operation of pressing forward, the palm 13 of the hand 15b attached to the rear end of the main body 1 hits the corner 13 of the wall at the rear end of the tool holding portion 4 so that the operator feels tired or uncomfortable. Can be eliminated as much as possible. 1 to 4 have a curved surface larger than that of the tip tool holding portion 4 shown in FIGS. 6 to 9.
[0012]
As shown in FIG. 12, an elastic body 7 having an inner diameter equal to or smaller than the outer diameter of the tip tool 5 is provided in the tip tool holding portion 4 to prevent the tip tool 5 from falling off. When the tip tool 5 is inserted, the elastic body 7 is elastically deformed and the tip tool 5 is pressed against the inner wall of the holding wall 6 to prevent the tip tool 5 from coming off in a direction orthogonal to the longitudinal direction, and position and hold the tip tool 5. . Further, two projections 10 are provided at upper and lower portions of the holding wall 6 of the tip tool holding portion 4 and project in a direction orthogonal to the longitudinal direction. Direction), the tool bit 5 is held while restricting the movement of the tool bit 5 in the longitudinal direction. In addition, by providing an open end in a portion of the holding wall 6 forming the tip tool holding portion 4 located on the chuck side or on the side opposite to the chuck, various tip tools can be held. In addition, even when the tip tool 5 is taken out from the tip tool holding part 4, the elastic body 7 can be elastically deformed and the engagement between the projection 10 and the annular groove 11 can be released as described above.
[0013]
In the present embodiment, the protrusion 10 has a vertically horizontal bar shape extending in a direction perpendicular to the motor shaft, and the protrusion 10 having a substantially elliptical cross section is provided along the inner periphery of the tool holding portion 4. However, other shapes may be used as long as the shape is such that the tip tool 5 can be easily taken out of the tip tool holding portion 4.
[0014]
In addition, by providing the notch 8 in upper and lower portions of the protection wall 6 forming the tip tool holding portion 4, the tip tool 5 can be pinched by a fingertip as shown in FIG.
[0015]
Further, as shown in FIG. 14, the tip tool holding portion 4 in the present embodiment can be applied not only to a power tool such as a cordless driver drill but also to a cord-type power tool supplied with power from the outside.
[0016]
Further, as shown in FIGS. 15 to 18, the tip tool holding portion 4 in the present embodiment may be provided on both side surfaces of the housing 1, thereby increasing the number of stored tip tools 5.
[0017]
Further, as shown in FIG. 19, by disposing the tip tool holding portion 4 so as not to be longer than the length of the main body 1, the tip tools having various lengths can be accommodated.
[0018]
As described above, even if the outer diameter of the housing 1 around the motor is reduced by providing a hollow portion in order to reduce the size and weight of the power tool, the protection wall 6 provided upright from the hollow portion provides a distal end. Since the tip tool holding portion 4 capable of sufficiently housing the tool 5 can be formed, the tip tool 5 can be easily and reliably attached and detached.
[0019]
Further, even when the operator presses the rear end portion of the main body 1 with his / her hand, the worker does not feel tired or uncomfortable.
[0020]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, even if the diameter of a main-body trunk | drum becomes small and it is likely to interfere with an internal structure, it is possible to provide an electric tool which can easily and surely accommodate various tip tools in a tip tool holding portion provided in a housing. it can.
[0021]
Further, an object of the present invention is to provide a tip with excellent operability and operability that does not give a worker a feeling of fatigue or discomfort even when performing an operation of pressing forward with a hand attached to the rear end of the main body torso. An electric tool having a tool holding portion can be provided.
[Brief description of the drawings]
FIG. 1 is an external front view showing an embodiment of a power tool according to the present invention.
FIG. 2 is a left side view of the power tool shown in FIG.
FIG. 3 is a right side view of the power tool shown in FIG.
FIG. 4 is a plan view of the power tool shown in FIG.
FIG. 5 is an explanatory diagram showing a relationship between a tip tool holding portion and an installation surface when the electric tool according to the present invention is turned over.
FIG. 6 is an external front view showing another embodiment of the power tool according to the present invention.
FIG. 7 is a left side view of the power tool shown in FIG. 6;
FIG. 8 is a right side view of the power tool shown in FIG.
9 is a plan view of the power tool shown in FIG.
FIG. 10 is a state explanatory view showing an example of a case where an operator grips and uses the power tool of FIG. 1;
11 is a state explanatory view showing an example of a case where an operator grips and uses the power tool of FIG. 6;
FIG. 12 is a vertical sectional view showing a tip tool holding portion provided in the electric tool shown in FIGS. 1 and 6;
FIG. 13 is a state explanatory view showing an example of a case where a tip tool is attached to and detached from a tip tool holding portion provided in the electric tool of FIGS. 1 and 6;
FIG. 14 is an external front view showing an example in which a similar power tool holder is provided on a power tool with a cord.
FIG. 15 is an external front view showing still another embodiment of the power tool according to the present invention.
16 is a left side view of the power tool shown in FIG.
17 is a right side view of the power tool shown in FIG.
FIG. 18 is a plan view of the power tool shown in FIG.
FIG. 19 is an external front view showing another embodiment of the tip tool holding portion according to the present invention.
FIG. 20 is an external front view showing one embodiment of a conventional power tool.
FIG. 21 is a partially omitted longitudinal sectional view showing an embodiment of a tip tool holding portion of a conventional power tool.
[Explanation of symbols]
1 is a housing, 2 is a handle portion, 3 is a power tool, 4 is a tip tool holding portion, 5 is a tip tool, 6 is a stopper wall, 7 is an elastic body, 8 is a cutout, 9 is a corner R, 10 is a projection, 11 is an annular groove, 12 is an installation surface, 13 is a corner, 14 is a rear end wall of a tool holding portion, 15a is a hand, 15b is a hand, 16 is a storage battery, and 17 is a cord.

Claims (4)

駆動源であるモータと、該モータを収容するハウジングと、該ハウジングに設けた先端工具保持部と、該先端工具保持部内に収容される先端工具とを備えた電動工具において、前記ハウジングに抉れ部を設け、該抉れ部から突出する保護壁により前記先端工具保持部を形成することを特徴とする電動工具。A power tool including a motor as a drive source, a housing for housing the motor, a tip tool holding part provided in the housing, and a tip tool housed in the tip tool holding part, wherein A power tool, wherein the tip tool holder is formed by a protection wall protruding from the recess. 前記保護壁は、収容される前記先端工具の外周を覆うと共に、前記先端工具より高さを有することを特徴とする請求項1記載の電動工具。The power tool according to claim 1, wherein the protection wall covers an outer periphery of the stored tool bit and has a height higher than the tool bit. 前記保護壁の後端部に曲部を設けることを特徴とする請求項1又は請求項2の何れか記載の電動工具。The power tool according to claim 1, wherein a curved portion is provided at a rear end of the protection wall. 前記保護壁に前記先端工具を着脱する際に使用される切り欠きを形成することを特徴とする請求項1乃至請求項3の何れか記載の電動工具。The power tool according to any one of claims 1 to 3, wherein a notch used for attaching and detaching the tip tool is formed in the protection wall.
JP2003025315A 2003-01-31 2003-01-31 Power tool Pending JP2004230538A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003025315A JP2004230538A (en) 2003-01-31 2003-01-31 Power tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003025315A JP2004230538A (en) 2003-01-31 2003-01-31 Power tool

Publications (1)

Publication Number Publication Date
JP2004230538A true JP2004230538A (en) 2004-08-19

Family

ID=32953631

Family Applications (1)

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Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010005749A (en) * 2008-06-27 2010-01-14 Hitachi Koki Co Ltd Electric power tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010005749A (en) * 2008-06-27 2010-01-14 Hitachi Koki Co Ltd Electric power tool

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