JP2009039841A5

JP2009039841A5 -

Info

Publication number: JP2009039841A5
Application number: JP2007209760A
Authority: JP
Filing date: 2007-08-10
Publication date: 2009-09-24

Description

Electrical connection device for rechargeable power tools

本発明は、電池パックを着脱可能に装着した充電式電動工具において、充電式電動工具と電池パックとを分離して使用できる充電式電動工具の電気接続装置に関する。 The present invention Oite the rechargeable power tool which is detachably attached to the battery pack, for electrical connection device rechargeable power tool that can be used to separate the rechargeable electric power tool and the battery pack.

従来、充電式電動工具は、３６ボルト、２４ボルト、１８ボルト、１２ボルト等のニカド電池、ニッケル水素電池等の電池パックを着脱可能に装着してコードレスで、穴あけ、ねじ締め、切断その他の諸作業ができる利点があるが、反面、強力な電池を搭載するので、重量が重く、特に工事用工具では女性や老齢者の作業負担が大きい欠点があった。
そこで、本発明者は、電池重量が大きく、腕力負担が大きいにも拘わらず、精密作業や天井作業や狭隘場所などの作業などが必要な場合には、一時的に電池パックを電動工具より分離して電池パックのみを携行袋に収納、又は、作業現場に載置して電池パックからコードを介して軽量になった電動工具により諸作業ができるようにし、上記問題点を解決することに成功した。
特開２００６−３５１４７６号 Conventionally, the rechargeable power tool, 36 volts, 2 4 volts, 18 volts, 12 two flaps batteries such as bolts, in cordless and detachably attached to the battery pack, such as a nickel hydride battery, drilling, screwing, cutting other However, since a powerful battery is installed, it is heavy, especially with construction tools, which has the disadvantage that the work burden on women and elderly people is large.
Therefore, the present inventor temporarily separated the battery pack from the power tool when precision work, ceiling work, work in a confined space, etc. is required despite the heavy battery weight and heavy arm force. Then, only the battery pack can be stored in a carrying bag, or placed on the work site so that various work can be done with the lighter power tool from the battery pack via the cord, succeeding in solving the above problems did.
JP 2006-351476 A

本発明は、重量の大きい電池パックを充電式電動工具本体から分離して使用できるようにした充電式電動工具の電気接続装置を提供するものである。
また、本発明は、女性や老齢者が充電式電動工具を使用する作業の体力的負担を大巾に軽減できるようにした充電式電動工具の電気接続装置を提供するものである。
さらに、本発明は、小型軽量で製作費安く簡単に使用できるようにした充電式電動工具の電気接続装置を提供するものである。 The present invention provides an electrical connection device for a rechargeable power tool that allows a heavy battery pack to be used separately from the rechargeable power tool body.
In addition, the present invention provides an electrical connection device for a rechargeable power tool that can greatly reduce the physical burden of the work of using a rechargeable power tool by a woman or an elderly person.
Furthermore, the present invention provides an electrical connection device for a rechargeable power tool that is small and light and can be used easily at a low manufacturing cost.

本発明充電式電動工具の電気接続装置の請求項１の発明は、上記課題を達成するため、図示するように、電池パック（４０）を上下移動して着脱可能に装着できるようにした充電式電動工具（３０）において、前記充電式電動工具（３０）の底面の凹部（３００）内の１対の給電端子（３１）にそれぞれ当接する１対の当接片（１０）と、前記各当接片（１０）と電気接続する電気コード（５０）であって外部に延長するものとを設けて、前記充電式電動工具（３０）の前記凹部（３００）に着脱可能に嵌入できるようにした電動工具用アタッチメント（Ａ１）と、前記電池パック（４０）の給電凸部（４１）の１対の給電端子（４１１）にそれぞれ当接する１対の当接片（２０）と、前記各当接片（２０）と電気接続する前記電気コード（５０）であって外部に延長するものとを設けて、前記電池パック（４０）の前記給電凸部（４１）に着脱可能に外嵌できるようにした電池パック用アタッチメント（Ｂ１）とを備え、前記充電式電動工具（３０）を作動させるとき、前記電池パック（４０）を前記充電式電動工具（３０）に装着することなく、携行袋（７０）に収納、又は、作業現場に載置できるようにした前記電池パック（４０）の前記給電凸部（４１）に外嵌した前記アタッチメント（Ｂ１）から前記電気コード（５０）を介して前記アタッチメント（Ａ１）を前記充電式電動工具（３０）の前記凹部（３００）に嵌入し、前記充電式電動工具（３０）を作動できるようにした充電式電動工具の電気接続装置である。 The invention of claim 1 of the electrical connection device of the present invention rechargeable power tool, in order to achieve the above object, as shown, rechargeable it can detachably mounted to move up and down the battery pack (40) in the electric power tool (30), said rechargeable power tool (30) contact piece pair of contact respectively a pair of power supply terminals (31) in the recess (300) of the bottom surface of the (10), each of those contact piece 10 and provided as extending an electrical connection to electric cord (50) to the outside, so as to be removably fitted in the recess (300) of the rechargeable electric power tool (30) the power tool attachment (A1), said battery pack (40) of the feed projection (41) a pair of contact piece to abut respectively on a pair of power supply terminals (411) and (20), each of those contact piece (20) and the electrical connection The electrical cord (50) is provided as extending to the outside A, the battery pack (40) the feed projection (41) to removably fitted can thus the battery pack attachment that ( B1) and comprises a, when actuating the rechargeable electric power tool (30), said battery pack (40) without attaching the rechargeable electric power tool (30) and housed in a carrying bag (70), or, wherein the attachment (A1) via the electric cord (50) from externally fitted said attachment (B1) to said power supply protrusion of the battery packs to be placed on a work site (40) (41) wherein fitted into the recess (300) of the rechargeable electric power tool (30), an electrical connection device rechargeable power tool to allow operating the rechargeable electric power tool (30).

本発明品は、充電式電動工具から電池パックを分離して電池パックを、腰バンドや肩かけできるようにした携行袋に収納又は作業現場に載置して、電池パックと電動工具とを１対のアタッチメントと電気コードで連結するだけで、重量を大幅に軽減した電動工具として使用できるので、特に精密作業、天井工事、狭隘場所での作業などの場合に操作しやすい上に、女性作業員や老齢作業員の作業負担を大きく軽減できる強味がある。また、本発明品は取扱簡単で、軽量、小型、安価につく利点がある。 The product of the present invention, the battery pack to separate the battery pack from the rechargeable electric power tool, is placed in the housing or work site to carry bags to be able to put the waist band and shoulder, and a battery pack and the electric tool 1 only connected by a pair of attachment and the electrical cord, because it can be used as an electric tool that significantly reduces the weight, especially precision work, ceiling construction, on the easy to operate in case of a work in narrow places, women work There is a strong point that can greatly reduce the work burden of workers and elderly workers. In addition, the product of the present invention is easy to handle and has the advantages of being lightweight, small and inexpensive.

本発明実施例に発明を実施するための最良の形態を記載した。 The best mode for carrying out the invention is described in the embodiments of the present invention.

本発明装置の実施例が、図１−１乃至図４に示されている。
本発明実施例の充電式電動工具の電気接続装置は、電動工具用アタッチメントＡ１と電池パック用アタッチメントＢ１とからなっている。
電動工具用アタッチメントＡ１は、充電式電動工具本体３０の底面の凹部３００に着脱可能に嵌入して装着する棒状のもので、凹部３００の形状に合わせて嵌入できるようにした挿入部１０１と凹部３００から突出して手で握ることができるようにした把手部１０２とからなり、凹部３００内の１対の給電端子３１にそれぞれ当接する１対の当接片１０と、各当接片１０と電気接続する電気コード５０であって外部に延長されるものとが設けられている。
アタッチメントＡ１の本体Ａ１１は、棒状の電気絶縁物であるゴム、合成樹脂からなり、やや弾性があり押圧嵌入されるものが好ましい。
電池パック用アタッチメントＢ１は、電池パック４０の給電凸部４１の形状に合わせて嵌入できるようにした凹部２０１を設けて、凹部２０１に電池パック４０の１対の給電端子４１１にそれぞれ当接される１対の当接片２０と、各当接片２０と電気接続する電気コード５０であって外部に延長されるものとが設けられている。１対の当接片２０は、図２−２に示すように弾性金属板が好ましい。
アタッチメントＢ１の本体Ｂ１１は、凹状の電気絶縁物であるゴム、合成樹脂からなり、やや弾性があり押圧外嵌されるものが好ましい。
なお、電気コード５０はアタッチメントＡ１に結線されると共に、アタッチメントＢ１に結線されるものである。
携行袋７０は、ベルト８０のベルト通し部７１と電池パック４０の収納部７２を備えている。収納部７２は電池パック４０を収納してスナップ７２２で開閉する開閉片７２１と、収納した電池パック４０の給電凸部４１に外嵌できるようにしたアタッチメントＢ１の電気コード５０を開閉片７２１を横切って引き出せるようにしたファスナー７２３を設けているものが好ましい。
アタッチメントＡ１とアタッチメントＢ１とにそれぞれ結合されている電線コード５０は、電動工具３０を使用しないときは、電動工具３０の凹部３００と電池パック４０の給電凸部４１からはずされて携行袋７０に収納して携行される。
電動工具３０を使用するときは、携行袋７０に収納したまま、又は、作業現場近くに電池パック４０を載置するかして、電池パック４０の給電凸部４１にアタッチメントＢ１を嵌合し、携行袋７０から電源コード５０を介してアタッチメントＡ１を電動工具３０の凹部３００に嵌入すれば、電動工具３０は電池パック４０を分離したまま使用できることになる。 An embodiment of the apparatus of the present invention is shown in FIGS.
The electrical connection device for a rechargeable power tool according to an embodiment of the present invention includes a power tool attachment A1 and a battery pack attachment B1.
The electric tool attachment A1 is a rod-shaped member that is detachably fitted into the concave portion 300 on the bottom surface of the rechargeable electric power tool main body 30 , and the insertion portion 101 and the concave portion 300 that can be fitted according to the shape of the concave portion 300. A pair of abutment pieces 10 that protrude from the handle portion 102 and that can be grasped by a hand, respectively abut against the pair of power supply terminals 31 in the recess 300, and electrical connection to the abutment pieces 10 and it shall be extended to the outside a electrical cord 50 that is provided.
The main body A11 of the attachment A1 is preferably made of rubber or synthetic resin, which is a rod-like electrical insulator, and is somewhat elastic and press-fit.
The battery pack attachment B1 is provided with a recess 201 to allow fitting in accordance with the shape of the feeding protrusion 41 of the battery pack 40, are respectively abut to the power supply terminal 411 of a pair of battery pack 40 into the recess 201 the contact piece 20 of the pair, and shall be extended is provided outside a respective contact pieces 20 and the electrical cord 50 electrically connected. The pair of contact pieces 20 is preferably an elastic metal plate as shown in FIG.
The main body B11 of the attachment B1 is preferably made of rubber or synthetic resin, which is a concave electrical insulator, and is somewhat elastic and press-fitted.
Incidentally, electrical cord 50 while being connected to the attachment A1, is intended to be connected to the attachment B1.
The carrying bag 70 includes a belt passing portion 71 of the belt 80 and a storage portion 72 of the battery pack 40. Housing portion 72 and the closing piece 721 to open and close a snap 722 accommodates the battery pack 40, the closing piece 721 electric cord 50 of the attachment B1 that allow fitted on the feeding protrusion 41 of the housing and the battery pack 40 It is preferable to provide a fastener 723 that can be pulled out across.
When the electric tool 30 is not used, the electric wire cords 50 respectively connected to the attachment A1 and the attachment B1 are detached from the concave portion 300 of the electric tool 30 and the power supply convex portion 41 of the battery pack 40 and stored in the carrying bag 70. To be carried.
When using the power tool 30, while housed in the portable bag 70, or, by either placing the battery pack 40 near the work site, and fitting an attachment B1 to the power supply protrusion 41 of the battery pack 40, If the attachment A1 is fitted into the recess 300 of the electric tool 30 from the carrying bag 70 via the power cord 50, the electric tool 30 can be used with the battery pack 40 separated.

本発明品は、小型、軽量、安価で量産できる。 The product of the present invention can be mass-produced with a small size, light weight and low cost.

本発明実施例のアタッチメントＡ１の正面図である。It is a front view of attachment A1 of the example of the present invention. 図１−１の平面図である。Is a plan elevational view of FIG. 1-1. 図１−２のＡ−Ａ線断面図である。It is the sectional view on the AA line of FIGS. 1-2. 図１−１の斜視図である。It is a perspective view of FIGS. 1-1. 本発明実施例のアタッチメントＢ１の平面図である。It is a plan view of the attachment B1 of the present invention embodiment. 図２−１のＢ−Ｂ線断面図である。It is the BB sectional view taken on the line of FIG. 図２−１の斜視図である。It is a perspective view of FIGS. 本発明実施例の携行袋の説明図である。It is explanatory drawing of the carrying bag of an Example of this invention. 本発明実施例の使用時の説明図である。It is explanatory drawing at the time of use of an Example of this invention.

Ａ１電動工具用アタッチメント
１０電動工具用アタッチメントの当接片
Ｂ１電池パック用アタッチメント
２０電池パック用アタッチメントの当接片
３０充電式電動工具
３００充電式電動工具の底面の凹部
３１充電式電動工具の給電端子
４０電池パック
４１電池パックの給電凸部
４１１電池パックの給電端子
５０電気コード
７０携行袋 A1 Attachment for electric tool 10 Contact piece for attachment for electric tool B1 Attachment for battery pack 20 Contact piece for attachment for battery pack 30 Rechargeable electric tool 300 Recessed bottom of rechargeable electric tool 31 Feed terminal for rechargeable electric tool 40 Battery Pack 41 Battery Pack Power Supply Projection 411 Battery Pack Power Supply Terminal
50 electrical cord
70 carrying bags

Claims

In the rechargeable power tool (30) that can be detachably mounted by moving the battery pack ( 40 ) up and down , a pair of power supply terminals ( 300 ) in the recess ( 300 ) on the bottom surface of the rechargeable power tool ( 30 ) a pair of contact piece to abut respectively 31) and (10), provided as extending the a respective contact member (10) and electrically connected to electric cord (50) to the outside, the charging wherein the recess (300) for electric power tool attachment which is to be removably fitted in (A1), 1 pair of power supply terminals of the power supply protrusion of said battery pack (40) (41) of the formula electric power tool (30) ( a pair of contact piece to abut respectively 411) and (20), provided as to extend the a said electrical code each contact piece (20) electrically connected (50) to the outside, the Said battery pack ( 40 ) Provided detachably and attachment (B1) battery packs to be fitted to the power supply protrusion (41), when operating the rechargeable electric power tool (30), said rechargeable said battery pack (40) without attachment to the power tool (30), housed in a carrying bag (70), or, the attachment was fitted on the feeding protrusion of the battery packs to be placed on a work site (40) (41) (B1) from and fitted into the attachment (A1) via the electric cord (50) in the recess (300) of the rechargeable electric power tool (30), so that it can operate the rechargeable electric power tool (30) An electrical connection device for a rechargeable electric tool, characterized in that