JPH01171782A - Electrically-driven tool - Google Patents

Electrically-driven tool

Info

Publication number
JPH01171782A
JPH01171782A JP62326336A JP32633687A JPH01171782A JP H01171782 A JPH01171782 A JP H01171782A JP 62326336 A JP62326336 A JP 62326336A JP 32633687 A JP32633687 A JP 32633687A JP H01171782 A JPH01171782 A JP H01171782A
Authority
JP
Japan
Prior art keywords
battery pack
battery
attachment
power tool
capacity
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
JP62326336A
Other languages
Japanese (ja)
Inventor
Norio Kotake
小竹 典夫
Shoichi Hongo
本郷 彰一
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP62326336A priority Critical patent/JPH01171782A/en
Publication of JPH01171782A publication Critical patent/JPH01171782A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

PURPOSE:To make it possible to use a battery pack with a battery capacity corresponding to a working condition by detachably installing to a small-sized battery pack an attachment for compensating a diameter difference from a battery storage area in the body of the electrically-driven tool in the caption, whose size is suitable for a large-sized battery pack. CONSTITUTION:In order to install to the body 1 of an electrically-driven tool a small-capacity battery pack 2 fitted with a grip end 5 and an attachment 4, the battery pack 2 and the attachment 4 are inserted into a battery storage area 10 from the end opening of the body 1. And a bayonet ring 6 is rotated to engage its engaging projection 60 with the engaging groove 40 of the attachment 4 so that the battery pack 2 is installed to the body 1. And in case of the installation of a large-capacity battery pack formed with the same diameter as the attachment 4 to the body, the battery pack is inserted into the battery storage area 10 of the body 1 from its small diameter side without the attachment 4. Then the bayonet ring 6 is rotated to engage the engaging projection 60 with the engaging groove of the battery pack, so that the large-capacity battery pack can be installed to the body 1.

Description

【発明の詳細な説明】[Detailed description of the invention]

【技術分野1 本発明は電動工具、殊に着脱自在な電池パックを備えた
電動工具に関するものである。 【背景技術】 蓄電池を着脱自在な電池パックとして備えている電動工
具は種々提供されているが、従来のこの種の電動工具は
、その機種毎に独自の電池パックを採用しており、作業
内容に応じて電池容量が異なる(重さが異なる)電池パ
ックを使用したり、付属の電池パックの電池容量が少な
いから、他の電動工具に付属の電池容量が大きい電池パ
ックを流用するといったことができなかった。
TECHNICAL FIELD 1 The present invention relates to a power tool, and particularly to a power tool equipped with a detachable battery pack. [Background Art] Various power tools are provided that are equipped with storage batteries as removable battery packs, but conventional power tools of this type employ unique battery packs for each model, and the work content You may need to use battery packs with different battery capacities (different weights) depending on the power tool, or if the included battery pack has a low battery capacity, you may reuse a battery pack with a larger battery capacity that comes with another power tool. could not.

【発明の目的】[Purpose of the invention]

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作業内容に応じた電池容量の電池パ
ックを使用することができる上に、他機種の電動工具の
電池パックの流用も容易に行なえる電動工具を提供する
にある。
The present invention has been made in view of these points, and its purpose is to not only enable the use of a battery pack with a battery capacity appropriate to the work content, but also to enable the use of battery packs for other types of power tools. To provide a power tool that can be easily reused.

【発明の開示1 しかして本発明は、電動工具本体と、この電動工具本体
に選択的に取り付けられる複数種の電池容量の異なる電
池パックとがらなり、これら電池パックのうち、電池容
量が小さくてその径が小さい電池パックには、電動工具
本体における電池容量が大きくてその径が大きい電池パ
ックに適合させた大きさの電池収納部との径差を埋める
アタッチメントが着脱自在に取り付けられていることに
Vf徴を有して、電池容量が異なるために大きさの異な
っている電池パックも、アタッチメントを利用すること
で、電動工具本体に取り付けられるようにしたものであ
る。 以下本発明を図示の実施例に基づいて詳述すると、この
電動ドリルドライバーで示した電動工具は、く字形に屈
曲された形態を有して、一端側の内部にモータ7や滅M
慨8、スイッチ9等が設けられている本体1と、本体1
の他端側に設けられた電池収納室10に選択的に取り付
けられる2種の電池パック2,3とからなり、第1図は
小容量の電池パック2を本体1に取り付けた状態を、第
2図は大容量の電池パック3を本体1に取り付けた状態
を示している。 小容量の電池パック2は、第3図乃至Pt55図に示す
ように、蓄電池20を収納する有底筒状のケース21と
、このケース21の一端開口に取り付けられるff15
図に示す蓋22、そしてケース21内に端子台23を介
して配設されて一部をケース21の窓24から外部に露
出させる端子25とからなるもので、ここで示した電動
工具よりも小型のものに使用することができるように形
成されている。そして、ここで示した電動工具本体1へ
の取り付けは、次に述べるグリップエンド5と筒型のア
タッチメント4とを使用して行なうようになっている。 ここにおけるアタッチメント4は、その内径が上記ケー
ス21を挿通させることがでさる大きさとされていると
ともに、本体1の電池収納部10に差し込むことができ
る外径とされたもので、本体1の電池収納部10側の端
部に回動自在に装着されているバヨネットリング6に設
けられた係止突起60が係合する係合溝40を外周面に
備えており、一端にグリップエンド5が螺着されている
。 また、グリップエンド5とアタッチメント4との連結の
際に、ケース21端末の7ランノ部を両者で挟持するこ
とにより、これらアタッチメント4及びグリップエンド
5は電池パック2と一体化されるようになっている。 グリップエンド5及びアタッチメント4が固着された電
池パック2を本体1に取り付けるには、電池パック2及
びアタッチメント4を本体1の端面開口から電池収納部
10内に差し込み、そして上記バヨネットリング6を回
転させて、バヨネットリング6の係止突起60をアタッ
チメント4の係合溝40に係合させればよい、このよう
に本体1に取り付けたならば、第1図から明らかなよう
に、電池パック2は電池収納室10内に完全に収納され
、グリップエンド5のみが外部に露出する。 第1図中の18は電池パック2における上記端子25に
接触してスイッチ6を蓄電池20に接続する接触金具で
ある。 一方、大容量の電池パック3は、16図及び第7図に示
すように、−iに小径部36を備えたケース31と、こ
のケース21内に収納される電池30と、ケース31の
他端に連結される有底筒状のグリップエン1′35、そ
して端子台33に取り付けられた状態でケース31の上
記小径部36内に収納されて一部を小径部36の外面に
窓34を通じて露出させる端子35とからなるもので、
ケース31の小径部36は前記電池パック2におけるケ
ース21と同径に、小径部36を除く部分が前記アタッ
チメント4と同径に形成されており、更にケース31の
他端部外周面に、本体1のバヨネットリング6の係止突
起60が係合する係合溝37が設けられている。グリッ
プエンド5はその内面に形成されている凹部51にケー
ス21に形成された係止突起38が係合することでなさ
れる。 図中39はクツションである。 この大容量の電池パック3をその小径部36側から本体
1の電池収納室10に差し込んで、バヨネットリング6
を回転させて係止突起60を係合溝37に係合させるこ
とにより、本体1に取り付けた時には、第2図に示すよ
うに、電池30の−部を内部に収納している筒型のグリ
ップエンド5が本体1の端部より大きく突出し、補助ハ
ンドルとして使用することができるようになる。この補
助ハンドルとしてのグリップエンド5をつかんだ状態で
作業を行なうならば、大きな締め付はトルクでビス締め
等を行なう時の反力にも容易に耐えることができる。 尚、大容量電池パック3のケース31の係合溝37や、
前記アタッチメント4の係合溝40内に設けられている
突起55は、本体1から電池パック3を取り外すために
、バヨネットリング6を緩めた時、係合突起60と係合
することで、電池パック2,3が抜は落ちてしまう事故
を防ぐものである。また図中56は係合状態を保持する
ために係止突起60と係合するクリック突起である。更
に、各電池パック2′13における端子台23.33は
、その電池20.30側が電池20.30が嵌まる円筒
状とされて、ケース21.31への組み込みを容易に行
なえるようになっており、電池パック3の端子台33で
は、この円筒部の端面がケース31内面より突設された
り158で受けられることにより、電池パック3をその
端子35側を下にして落下させた時にも、電池30の重
量はケース21で受けられて端子35にかかることがな
いようにしである。 ここでは2種の電池パック2.3しか示さなかったが、
これら以外の電池容量(大きさ)の電池パック2も、電
池収納室10の内径と電池パックの外径との差を埋める
アタッチメント4やグリップエンド5を用意することで
、本体1に取り付けることができる0機種毎に電池パッ
クの容量(大きさ)が異なっていても、他機種の電池パ
ックを流用することがでさるわけであり、逆に、ここで
示した電池パック2も、異なるアタッチメント4及びグ
リップエンド5を用意することで、電池収納室10の大
きさが異なる他の機種に利用することができるものであ
る。 【発明の効果】 以上のように本発明においては、電動工具本体に選択的
に取り付けられる複数種の電池容量の異なる電池パック
のうち、電池容量が小さくてその径が小さい電池パック
には、電動工具本体における電池容量が大きくてその径
が大きい電池パックに適合させた大きさの電池収納部と
の径差な埋めるアタッチメントが着脱自在に取り付けら
れていることから、電池容量が異なるために大きさの異
なっている電池パックも、アタッチメントを介して取り
付けることができるものであり、作業内容に応じた電池
容量の電池パックを使用することができる上に、他機種
の電動工具の電池パックの流用も容易に行なえるもので
ある。
DISCLOSURE OF THE INVENTION 1 The present invention consists of a power tool main body and a plurality of battery packs with different battery capacities that are selectively attached to the power tool main body. A battery pack with a small diameter has a removable attachment that fills in the difference in diameter between the battery compartment in the power tool itself, which has a large battery capacity, and is sized to fit a battery pack with a large diameter. Battery packs that have Vf characteristics and have different sizes due to different battery capacities can also be attached to the power tool body by using an attachment. The present invention will be described in detail below based on the illustrated embodiments. The electric drill driver is a power tool that is bent into a dogleg shape, and has a motor 7 and a magnet inside one end.
The main body 1 is equipped with the main body 8, the switch 9, etc., and the main body 1.
Consisting of two types of battery packs 2 and 3 that are selectively attached to a battery storage chamber 10 provided at the other end, FIG. FIG. 2 shows a state in which a large capacity battery pack 3 is attached to the main body 1. As shown in FIGS. 3 to 55, the small-capacity battery pack 2 includes a bottomed cylindrical case 21 that houses the storage battery 20, and an FF15 that is attached to an opening at one end of the case 21.
It consists of a lid 22 shown in the figure, and a terminal 25 that is disposed inside the case 21 via a terminal block 23 and partially exposed to the outside through the window 24 of the case 21, and is better than the power tool shown here. It is designed to be used for small objects. The attachment to the power tool main body 1 shown here is carried out using a grip end 5 and a cylindrical attachment 4, which will be described below. The attachment 4 here has an inner diameter that is large enough to allow the case 21 to be inserted therethrough, and an outer diameter that allows it to be inserted into the battery compartment 10 of the main body 1. The outer peripheral surface is provided with an engagement groove 40 in which a locking protrusion 60 provided on a bayonet ring 6 rotatably attached to the end on the side of the storage section 10 engages, and the grip end 5 is screwed onto one end. It is worn. Furthermore, when connecting the grip end 5 and the attachment 4, the attachment 4 and the grip end 5 are integrated with the battery pack 2 by holding the 7 run portion of the terminal of the case 21 between them. There is. To attach the battery pack 2 to which the grip end 5 and the attachment 4 are fixed to the main body 1, the battery pack 2 and the attachment 4 are inserted into the battery compartment 10 through the end opening of the main body 1, and the bayonet ring 6 is rotated. Then, the locking protrusion 60 of the bayonet ring 6 should be engaged with the engagement groove 40 of the attachment 4. Once the battery pack 2 is attached to the main body 1 in this way, as is clear from FIG. It is completely stored in the battery storage chamber 10, and only the grip end 5 is exposed to the outside. Reference numeral 18 in FIG. 1 is a contact metal fitting that contacts the terminal 25 of the battery pack 2 to connect the switch 6 to the storage battery 20. On the other hand, as shown in FIG. 16 and FIG. A cylindrical grip 1' 35 with a bottom is connected to the end, and is housed in the small diameter part 36 of the case 31 while being attached to the terminal block 33, and a part of the grip is attached to the outside of the small diameter part 36 through the window 34. It consists of a terminal 35 to be exposed,
The small diameter portion 36 of the case 31 is formed to have the same diameter as the case 21 in the battery pack 2, and the portion other than the small diameter portion 36 is formed to have the same diameter as the attachment 4. An engagement groove 37 is provided in which the engagement protrusion 60 of the first bayonet ring 6 engages. The grip end 5 is formed by engaging a locking protrusion 38 formed on the case 21 with a recess 51 formed on the inner surface of the grip end 5. 39 in the figure is a cushion. Insert this large capacity battery pack 3 into the battery storage chamber 10 of the main body 1 from the small diameter part 36 side, and
When attached to the main body 1 by rotating the locking protrusion 60 to engage the engagement groove 37, as shown in FIG. The grip end 5 protrudes beyond the end of the main body 1 and can be used as an auxiliary handle. If the work is carried out while grasping the grip end 5, which serves as an auxiliary handle, it is possible to easily withstand the reaction force when tightening a screw with a large torque. In addition, the engagement groove 37 of the case 31 of the large capacity battery pack 3,
When the bayonet ring 6 is loosened in order to remove the battery pack 3 from the main body 1, the protrusion 55 provided in the engagement groove 40 of the attachment 4 engages with the engagement protrusion 60, thereby removing the battery pack. Steps 2 and 3 are to prevent accidents such as falling. Further, reference numeral 56 in the figure indicates a click protrusion that engages with the locking protrusion 60 to maintain the engaged state. Further, the terminal block 23.33 in each battery pack 2'13 has a cylindrical shape on the battery 20.30 side into which the battery 20.30 is fitted, so that it can be easily assembled into the case 21.31. In the terminal block 33 of the battery pack 3, the end surface of this cylindrical portion protrudes from the inner surface of the case 31 and is received by the terminal 158, so that even when the battery pack 3 is dropped with its terminal 35 side down, The weight of the battery 30 is supported by the case 21 so as not to be applied to the terminal 35. Although only two types of battery packs 2.3 were shown here,
Battery packs 2 with battery capacities (sizes) other than these can also be attached to the main body 1 by preparing an attachment 4 or grip end 5 that fills the difference between the inner diameter of the battery storage chamber 10 and the outer diameter of the battery pack. Even if the capacity (size) of the battery pack is different for each model, it is possible to use the battery pack of another model.Conversely, the battery pack 2 shown here can also be used with different attachments 4. By preparing the grip end 5 and the grip end 5, it can be used for other models having different sizes of battery storage chambers 10. Effects of the Invention As described above, in the present invention, among the plurality of types of battery packs with different battery capacities that can be selectively attached to the power tool body, a battery pack with a small battery capacity and a small diameter is The tool body has a removable attachment that fills in the diameter difference between the battery compartment and the battery compartment, which is sized to fit a battery pack with a large battery capacity and a large diameter. Different battery packs can be attached via attachments, so you can use a battery pack with a battery capacity that matches the work you are doing, and you can also use battery packs from other models of power tools. It's easy to do.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明一実施例の小容量電池パックを装着した
状態の正面図、m2図は同上の大容量電池パックを装着
した状態の正面図、第3図は同上の小容量電池パックの
正面図、fjS4図は同上の分解斜視図、第5図は同上
の本体への取付時の断面図、第6図は大容量電池パック
の断面図、第7図は同上の分解斜視図であって、1は本
体、2.3は電池パック、4はアタッチメント、10は
電池収納室を示す。 代理人 弁理士 石 1)艮 七 1 本体 2,3電池パツク 4 アタッチメント 第1図 第3図 第5図 第6図 当
Figure 1 is a front view of a small capacity battery pack according to an embodiment of the present invention installed, Figure m2 is a front view of the same large capacity battery pack installed, and Figure 3 is a front view of the same small capacity battery pack installed. The front view, fjS4 figure is an exploded perspective view of the same as above, Fig. 5 is a sectional view of the above when attached to the main body, Fig. 6 is a sectional view of the large capacity battery pack, and Fig. 7 is an exploded perspective view of the same as above. 1 is a main body, 2.3 is a battery pack, 4 is an attachment, and 10 is a battery storage chamber. Agent Patent attorney Ishi 1) Ai 71 Main body 2, 3 Battery pack 4 Attachment Figure 1 Figure 3 Figure 5 Figure 6 Part

Claims (2)

【特許請求の範囲】[Claims] (1)電動工具本体と、この電動工具本体に選択的に取
り付けられる複数種の電池容量の異なる電池パックとか
らなり、これら電池パックのうち、電池容量が小さくて
その径が小さい電池パックには、電動工具本体における
電池容量が大きくてその径が大きい電池パックに適合さ
せた大きさの電池収納部との径差を埋めるアタッチメン
トが着脱自在に取り付けられていることを特徴とする電
動工具。
(1) Consists of a power tool body and multiple types of battery packs with different battery capacities that can be selectively attached to the power tool body. Among these battery packs, battery packs with small battery capacities and small diameters are A power tool, characterized in that an attachment is removably attached to the power tool main body to fill the difference in diameter between the power tool body and a battery storage portion of a size adapted to a battery pack having a large capacity and a large diameter.
(2)電池容量の大きな電池パックは、電動工具本体か
ら突出して補助ハンドルを形成するグリップ部を有して
いることを特徴とする特許請求の範囲第1項記載の電動
工具。
(2) The power tool according to claim 1, wherein the battery pack with a large battery capacity has a grip portion that projects from the power tool body and forms an auxiliary handle.
JP62326336A 1987-12-23 1987-12-23 Electrically-driven tool Pending JPH01171782A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62326336A JPH01171782A (en) 1987-12-23 1987-12-23 Electrically-driven tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62326336A JPH01171782A (en) 1987-12-23 1987-12-23 Electrically-driven tool

Publications (1)

Publication Number Publication Date
JPH01171782A true JPH01171782A (en) 1989-07-06

Family

ID=18186637

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62326336A Pending JPH01171782A (en) 1987-12-23 1987-12-23 Electrically-driven tool

Country Status (1)

Country Link
JP (1) JPH01171782A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010050002A (en) * 2008-08-22 2010-03-04 Hitachi Koki Co Ltd Electric power tool system
WO2013169761A1 (en) * 2012-05-07 2013-11-14 Milwaukee Electric Tool Corporation Twist on battery pack
JP2014529160A (en) * 2011-07-24 2014-10-30 株式会社マキタ Hand-held power tool and battery pack for hand-held power tool

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010050002A (en) * 2008-08-22 2010-03-04 Hitachi Koki Co Ltd Electric power tool system
JP2014529160A (en) * 2011-07-24 2014-10-30 株式会社マキタ Hand-held power tool and battery pack for hand-held power tool
WO2013169761A1 (en) * 2012-05-07 2013-11-14 Milwaukee Electric Tool Corporation Twist on battery pack
US8878490B2 (en) 2012-05-07 2014-11-04 Milwaukee Electric Tool Corporation Twist on battery pack

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