JP2018088854A - Electric working machine - Google Patents

Electric working machine Download PDF

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Publication number
JP2018088854A
JP2018088854A JP2016233542A JP2016233542A JP2018088854A JP 2018088854 A JP2018088854 A JP 2018088854A JP 2016233542 A JP2016233542 A JP 2016233542A JP 2016233542 A JP2016233542 A JP 2016233542A JP 2018088854 A JP2018088854 A JP 2018088854A
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Japan
Prior art keywords
battery
housing recess
working machine
battery housing
electric working
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JP2016233542A
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Japanese (ja)
Inventor
太一 久保田
Taichi Kubota
太一 久保田
山▲崎▼ 達也
Tatsuya Yamazaki
達也 山▲崎▼
則和 清水
Norikazu Shimizu
則和 清水
邦彦 石塚
Kunihiko Ishizuka
邦彦 石塚
敬介 村岡
Keisuke Muraoka
敬介 村岡
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP2016233542A priority Critical patent/JP2018088854A/en
Priority to PCT/JP2017/041543 priority patent/WO2018101091A1/en
Priority to CN201780074310.XA priority patent/CN110381726B/en
Priority to EP17875114.5A priority patent/EP3549432B1/en
Publication of JP2018088854A publication Critical patent/JP2018088854A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide an electric working machine which allows easy attachment/detachment of a battery.SOLUTION: An electric working machine 1 includes a main body 2 having a battery storage recess part 40 at the upper side opened upward and a battery 20 stored in the battery storage recess part. A protrusion part 108 protruding frontward is provided on the upper part of the front end of the battery. A grip part is provided on the rear end of the battery. At least when the battery is removed to the battery storage recess part, a bearing surface 36 supporting the interior surface of the protrusion part is provided on the upper end of the front edge of the battery storage recess part.SELECTED DRAWING: Figure 12

Description

本発明は、バッテリパック(以下、「バッテリ」という)を備えた電動作業機に関する。   The present invention relates to an electric working machine including a battery pack (hereinafter referred to as “battery”).

電動作業機の一態様である電動芝刈機において、電動芝刈機本体に取り付けられたブラケットにバッテリを搭載したものがある(例えば、特許文献1)。特許文献1のバッテリはブラケットに横置き配置され、弾性ベルトによって固定されている。   There is an electric lawn mower that is an embodiment of an electric working machine in which a battery is mounted on a bracket attached to the electric lawn mower body (for example, Patent Document 1). The battery of Patent Document 1 is placed horizontally on a bracket and fixed by an elastic belt.

特開2003−61432号公報JP 2003-61432 A

電動芝刈機では、作業性を向上させるため、使用者が容易にバッテリを着脱できるように構成することが好ましい。特許文献1に記載の電動芝刈機では、バッテリを着脱するときに弾性ベルトの着脱する必要があり、作業者はバッテリブラケットを損傷しないようにバッテリの重量を支えるために十分な力を加える必要がある。そのため、電動作業機において、よりバッテリを容易に着脱できるようにすることが望まれる。   The electric lawn mower is preferably configured so that the user can easily attach and detach the battery in order to improve workability. In the electric lawn mower described in Patent Document 1, it is necessary to attach / detach the elastic belt when attaching / detaching the battery, and the operator needs to apply sufficient force to support the weight of the battery so as not to damage the battery bracket. is there. Therefore, it is desired that the battery can be easily attached and detached in the electric working machine.

本発明は、以上の背景を鑑み、バッテリの着脱が容易な電動作業機を提供することを課題とする。   In view of the above background, it is an object of the present invention to provide an electric working machine in which a battery can be easily attached and detached.

上記課題を解決するために、電動作業機(1)であって、上側に上方に向けて開口するバッテリ収容凹部(40)を有する本体(2)と、前記バッテリ収容凹部に収容されるバッテリ(20)とを備え、前記バッテリの一端側端部の上部には一端側に突出する突出部(108)が設けられ、前記バッテリの他端側端部には把持部(104)が設けられ、少なくとも前記バッテリが前記バッテリ収容凹部に取り出されるときに、前記突出部の下面を支持する支承面が前記バッテリ収容凹部の上縁に設けられている電動作業機が提供される。   In order to solve the above-described problem, the electric working machine (1) includes a main body (2) having a battery housing recess (40) that opens upward and a battery that is housed in the battery housing recess ( 20), a protrusion (108) protruding toward one end is provided at the top of the end on one end of the battery, and a grip (104) is provided at the end on the other end of the battery, An electric working machine is provided in which a support surface that supports a lower surface of the protruding portion is provided on an upper edge of the battery housing recess when at least the battery is taken out into the battery housing recess.

この態様によれば、バッテリの後端を持ち上げるときに、突出部の下面をバッテリ収容凹部の一端側の上縁に設けられた支承面に当接させることによって、バッテリを電動作業機本体に支持させることができる。そのため、作業者はバッテリを容易にバッテリ収容凹部から取り出すことが可能となる。   According to this aspect, when the rear end of the battery is lifted, the battery is supported on the electric work machine body by bringing the lower surface of the protruding portion into contact with the support surface provided on the upper edge of the one end of the battery housing recess. Can be made. Therefore, the operator can easily take out the battery from the battery housing recess.

また、上記の態様において、前記突出部の前記下面が側面視で他端に向かって下向きの傾斜を有し、前記支承面が側面視で外向きに凸な形状をなすとよい。   In the above aspect, it is preferable that the lower surface of the projecting portion has a downward slope toward the other end in a side view, and the support surface has a shape protruding outward in a side view.

この態様によれば、突出部の下面、及び、突出部の下面を支持する支承面を容易に形成することが可能となる。   According to this aspect, it is possible to easily form the lower surface of the protruding portion and the support surface that supports the lower surface of the protruding portion.

また、上記の態様において、前記突出部の前記下面は側面視で凹形状の湾曲形状をなすとよい。   In the above aspect, the lower surface of the protruding portion may have a concave curved shape in a side view.

この態様によれば、突出部の下面が湾曲形状を有するため、作業者はバッテリの後端を持ち上げられるときに突出部の下面を支承面に摺接させることによって、バッテリを概ね回動するように持ち上げることができる。そのため、作業者はバッテリを容易に持ち上げることができる。   According to this aspect, since the lower surface of the projecting portion has a curved shape, when the operator lifts the rear end of the battery, the operator causes the lower surface of the projecting portion to slidably contact the support surface so that the battery is substantially rotated. Can be lifted to. Therefore, the operator can easily lift the battery.

また、上記の態様において、前記支承面が側面視で外向きに凸な湾曲形状をなすとよい。   In the above aspect, the support surface may have a curved shape that protrudes outward in a side view.

この態様によれば、支承面が側面視で外向きに凸な湾曲形状を有するため、作業者はバッテリの後端を持ち上げられるときに突出部の下面を支承面に摺接させることによって、バッテリを概ね回動するように持ち上げることができる。そのため、作業者はバッテリを容易に持ち上げることができる。   According to this aspect, since the support surface has a curved shape that protrudes outward in a side view, the operator slides the lower surface of the protruding portion on the support surface when the rear end of the battery is lifted. Can be lifted so as to rotate substantially. Therefore, the operator can easily lift the battery.

また、上記の態様において、前記突出部の前記下面の形状と支承面の形状とが互いに相補的な形状をなすとよい。   In the above aspect, the shape of the lower surface of the protrusion and the shape of the support surface may be complementary to each other.

この態様によれば、作業者がバッテリを持ち上げるときの突出部の下面及び支承面が互いに当接する面積が大きくなるため、作業者はバッテリを安定して持ち上げることができる。   According to this aspect, since the area where the lower surface of the protrusion and the support surface come into contact with each other when the operator lifts the battery increases, the worker can lift the battery stably.

また、上記の態様において、前記バッテリ収容凹部の底部の他端側に前記バッテリ収容凹部内に収容された前記バッテリを上方に付勢するばね部材(80、82)が設けられ、前記バッテリ収容凹部の他端側の側壁に前記バッテリの他端側端部に係合するラッチ部材(66)が設けられているとよい。   Further, in the above aspect, a spring member (80, 82) for biasing the battery accommodated in the battery accommodating recess upward is provided on the other end side of the bottom of the battery accommodating recess, and the battery accommodating recess A latch member (66) that engages with the other end of the battery may be provided on the other end of the battery.

この態様によれば、ラッチ部材とバッテリの後部との間の係合を解除すると、バッテリ収容凹部の底部の後部に設けられたばね部材によってバッテリが上方に押し出されるため、トレイからのバッテリの取り出しが容易になる。更に、ばね部材によって本体の振動が吸収されるため、バッテリを振動から保護することができる。   According to this aspect, when the engagement between the latch member and the rear portion of the battery is released, the battery is pushed upward by the spring member provided at the rear portion of the bottom portion of the battery accommodating recess, so that the battery can be removed from the tray. It becomes easy. Furthermore, since the vibration of the main body is absorbed by the spring member, the battery can be protected from the vibration.

また、上記の態様において、前記バッテリ収容凹部の前記一端側の上縁より下方へ連続する壁に設けられた係止部(50)と、少なくとも前記バッテリの上方の変位を規制するべく、前記係止部に係合可能に前記バッテリの前記一端側の下部に設けられた被係止部(136)とを更に有するとよい。   Further, in the above aspect, the engagement portion (50) provided on the wall continuous downward from the upper edge of the one end side of the battery accommodating recess, and at least the engagement to restrict displacement above the battery. It is good to further have a to-be-latched part (136) provided in the lower part of the one end side of the battery so as to be engageable with a stop part.

この態様によれば、バッテリがバッテリ収容凹部に収容されたときにバッテリがバッテリ収容凹部の内部に係止されるため、バッテリがバッテリ収容凹部から上方に突出することがない。   According to this aspect, since the battery is locked inside the battery housing recess when the battery is housed in the battery housing recess, the battery does not protrude upward from the battery housing recess.

また、上記の態様において、前記バッテリ収容凹部の前記一端側の底部に、前記バッテリ収容凹部内に収容され前記バッテリを上方に付勢するばね部材(80)が設けられているとよい。   In the above aspect, a spring member (80) housed in the battery housing recess and biasing the battery upward may be provided at a bottom portion on the one end side of the battery housing recess.

この態様によれば、バッテリがバッテリ収容凹部内に収容されたときのがたつきが防止される。また、バッテリ収容凹部の前部の底部に設けられたばね部材は、バッテリがバッテリ収容凹部の底に落下したときに加わる衝撃を吸収することができる。   According to this aspect, rattling when the battery is housed in the battery housing recess is prevented. Moreover, the spring member provided in the bottom part of the front part of a battery accommodating recessed part can absorb the impact added when a battery falls to the bottom of a battery accommodating recessed part.

また、上記の態様において、前記バッテリ収容凹部の底面が前記一端側に向けて下向きに傾斜しているとよい。   Moreover, said aspect WHEREIN: It is good for the bottom face of the said battery accommodating recessed part to incline downward toward the said one end side.

この態様によれば、重力に従ってバッテリを底面に沿って滑らせつつバッテリをバッテリ収容凹部に収容することが可能となり、バッテリの収容が容易になる。   According to this aspect, the battery can be accommodated in the battery accommodating recess while sliding the battery along the bottom surface according to gravity, and the battery can be easily accommodated.

また、上記の態様において、前記バッテリの側に設けられた給電端子(132)と、前記バッテリ収容凹部の側に設けられた受電端子(44)とを有し、前記一端側の側面に給電端子が設けられ、前記バッテリ収容凹部の前記上縁の側に受電端子が設けられているとよい。   Moreover, in said aspect, it has the electric power feeding terminal (132) provided in the said battery side, and the electric power receiving terminal (44) provided in the said battery accommodating recessed part side, and electric power feeding terminal in the side surface of the said one end side And a power receiving terminal may be provided on the upper edge side of the battery housing recess.

この態様によれば、バッテリの取り出し時には、支承面と突出部の下面とが当接し、バッテリが回動する。給電端子がバッテリの前面以外の側面に設けられる場合に比べ、バッテリの前面に設けられているときは、給電端子は受電端子からゆっくり離れるため、給電端子及び受電端子の保護が図られる。   According to this aspect, when the battery is taken out, the support surface and the lower surface of the projecting portion come into contact with each other, and the battery rotates. Compared with the case where the power supply terminal is provided on the side surface other than the front surface of the battery, when the power supply terminal is provided on the front surface of the battery, the power supply terminal is slowly separated from the power reception terminal, so that the power supply terminal and the power reception terminal are protected.

以上の構成によれば、バッテリの着脱が容易な電動作業機を提供することが可能となる。   According to the above configuration, it is possible to provide an electric working machine in which the battery can be easily attached and detached.

本発明に係る電動芝刈機の斜視図The perspective view of the electric lawn mower according to the present invention 図1のII−IIの断面図Sectional view of II-II in FIG. 図1の電動芝刈機のバッテリトレイの正面図Front view of the battery tray of the electric lawn mower in FIG. 図3のIV−IVの断面図Sectional view of IV-IV in FIG. 受電端子の上面図Top view of the power receiving terminal 図1の電動芝刈機のバッテリの斜視図The perspective view of the battery of the electric lawn mower of FIG. 図6のバッテリの底面図Bottom view of the battery of FIG. 図6のVIII−VIII断面図VIII-VIII sectional view of FIG. 給電端子の斜視図Perspective view of power supply terminal バッテリがバッテリ収容凹部に収容されているときの斜視図A perspective view when the battery is housed in the battery housing recess 図10のXI−XI断面図XI-XI sectional view of FIG. 取り出しボタンを押した直後のバッテリの後部が浮き上がった状態(実線)から、バッテリの後端を持ち上げられ(一点鎖線)、バッテリ収容凹部の後縁を超える状態(二点鎖線)に至るまでバッテリの変位を示す図From the state where the rear part of the battery is lifted immediately after pushing the eject button (solid line), the rear end of the battery is lifted (one-dot chain line), and beyond the rear edge of the battery housing recess (two-dot chain line). Diagram showing displacement カバー突出部の下面が支承面に当接しつつバッテリが回転のみした状態(一点鎖線)と、重力によってバッテリの前端下部がバッテリ収容凹部の底に当接するまで移動したときの状態(実線)を説明するための説明図Explains the state in which the battery only rotates while the lower surface of the cover protrusion is in contact with the support surface (one-dot chain line) and the state in which the front lower part of the battery is moved by gravity until it contacts the bottom of the battery housing recess (solid line). Explanatory diagram to do バッテリがバッテリ収容凹部に挿入されるときの斜視図A perspective view when the battery is inserted into the battery housing recess バッテリの前端下部が収容凹部に当接した状態(実線)から、前方へ滑り(一点鎖線)、被係止部がラッチ部材に当接する状態(破線)に至るまでの変位を示す図The figure which shows the displacement from the state (solid line) which the front-end lower part of the battery contact | abutted to the accommodation recessed part to the state (dashed line) where it slides ahead (a dashed-dotted line) and a to-be-latched part contact | abuts to a latch member. 図15の(A)XVA−XVA断面図、(B)XVB−XVB断面図、及び(C)XVC−XVC断面図15 (A) XVA-XVA sectional view, (B) XVB-XVB sectional view, and (C) XVC-XVC sectional view. バッテリが挿入され完全に収容されるまでの被ガイド面の軌跡の説明図Explanatory drawing of the locus of the guided surface until the battery is inserted and fully accommodated 被係止部がラッチ部材に当接する状態(実線)から、所定の角度の回転した状態(一点鎖線)を経て、バッテリ収容凹部に収容された状態(二点鎖線)に至るまでの変位を示す図It shows the displacement from the state where the locked portion abuts against the latch member (solid line), through the state rotated by a predetermined angle (dashed line), and the state accommodated in the battery accommodating recess (dashed line). Figure 図18のXIX−XIXの断面図Sectional view of XIX-XIX in FIG. 受電端子と給電端子とが結合するまでの受電端子の変位の説明図Explanatory drawing of displacement of power receiving terminal until power receiving terminal and power feeding terminal are combined

以下に本発明に係る電動作業機を電動芝刈機に適用した実施例を図1〜図20を参照して説明する。   An embodiment in which the electric working machine according to the present invention is applied to an electric lawn mower will be described below with reference to FIGS.

(電動芝刈機)
図1及び図2に示すように、本実施形態に係る電動芝刈機1は、本体2と、本体2の下部に設けられたブレード3と、本体2に結合した左右一対の前輪4及び後輪5と、本体2から後上方に延びるハンドル6とを有する。本体2には下部中央に凹部7が設けられ、凹部7にブレード3が収容されている。本体2にはブレード3が回転軸に結合されたブレード用モータ8、及び左右の後輪5を駆動するための走行用モータ9が支持されている。ブレード用モータ8及び走行用モータ9は共に電気モータであり、本体2には各モータを制御する制御装置10が設けられている。
(Electric lawn mower)
As shown in FIGS. 1 and 2, the electric lawn mower 1 according to this embodiment includes a main body 2, a blade 3 provided at a lower portion of the main body 2, and a pair of left and right front wheels 4 and rear wheels coupled to the main body 2. 5 and a handle 6 extending rearward and upward from the main body 2. The main body 2 is provided with a recess 7 at the center of the lower portion, and the blade 3 is accommodated in the recess 7. The main body 2 supports a blade motor 8 having a blade 3 coupled to a rotating shaft, and a traveling motor 9 for driving the left and right rear wheels 5. Both the blade motor 8 and the travel motor 9 are electric motors, and the main body 2 is provided with a control device 10 for controlling each motor.

ハンドル6は、本体2の後部左右からそれぞれ後上方に延びる側辺部12と、各側辺部12の後端同士を互いに連結する後辺部13とを有する。ハンドル6の後辺部13には、走行用モータ9を操作するための走行用レバー15とブレード用モータ8を操作するためのブレード用レバー16とが設けられている。   The handle 6 includes a side part 12 that extends rearward and upward from the left and right of the rear part of the main body 2 and a rear part 13 that connects the rear ends of the side parts 12 to each other. The rear side 13 of the handle 6 is provided with a travel lever 15 for operating the travel motor 9 and a blade lever 16 for operating the blade motor 8.

本体2の上部には、ブレード用モータ8、左右の走行用モータ9、及び制御装置10を覆う上部カバー18が設けられている。上部カバー18の上面に設けられたバッテリトレイ19には、各モータ8、9、及び制御装置10に電力を供給するバッテリ20が着脱可能に受容されている。   An upper cover 18 that covers the blade motor 8, the left and right traveling motors 9, and the control device 10 is provided on the upper portion of the main body 2. A battery tray 19 provided on the upper surface of the upper cover 18 receives a detachable battery 20 that supplies electric power to the motors 8 and 9 and the control device 10.

本体2には凹部7から本体2の後面に延びる通路22が形成され、その開口端を塞ぐようにグラスバッグ23が設けられている。ブレード3によって刈り取られた芝は凹部7から通路22を通って後方へ排出され、グラスバッグ23に回収される。   A passage 22 extending from the recess 7 to the rear surface of the main body 2 is formed in the main body 2, and a glass bag 23 is provided so as to close the open end. The turf cut by the blade 3 is discharged backward from the recess 7 through the passage 22 and collected in the glass bag 23.

(バッテリトレイ)
図3及び図4に示されるように、バッテリトレイ19には上方、且つ前方に向けて開口するトレイ凹部30が凹設されている。トレイ凹部30の開口縁は前後に延びる略長方形の形状を有し概ね対称面Xを中心として左右に対称に形成されている。
(Battery tray)
As shown in FIGS. 3 and 4, the battery tray 19 is provided with a tray recess 30 that opens upward and forward. The opening edge of the tray recess 30 has a substantially rectangular shape extending in the front-rear direction, and is generally symmetrically formed about the symmetry plane X.

トレイ凹部30の前縁には、対称面Xについて左右対称に形成され、トレイ凹部30の底壁から略上方に向けて膨出する受電部32が設けられている。受電部32は前上方を向く前面、前面の後方に位置し概ね後方を向く受電部支持面34、及び左右側面によって画定されている。受電部32の前面と受電部支持面34との間には、側面視で上側に凸な湾曲形状を有し概ね一定曲率を持った円弧をなす支承面36が形成されている。   On the front edge of the tray recess 30, a power receiving unit 32 that is formed symmetrically with respect to the symmetry plane X and bulges substantially upward from the bottom wall of the tray recess 30 is provided. The power reception unit 32 is defined by a front surface facing upward in the front direction, a power reception unit support surface 34 positioned at the rear of the front surface and facing generally rearward, and left and right side surfaces. Between the front surface of the power reception unit 32 and the power reception unit support surface 34, a support surface 36 is formed that has a curved shape that is convex upward in a side view and has a substantially constant curvature.

バッテリ20はトレイ凹部30を画定する左右側面、背面、及び底面と、受電部支持面34とによって画定された範囲であるバッテリ収容凹部40に収容される。よって、受電部32の後方に向く受電部支持壁35はバッテリ収容凹部40の前縁を画定する前壁に対応する。バッテリ20はトレイ凹部30の底面のうち、トレイ凹部30の左右側面、トレイ凹部30の背面、及び、受電部支持面34を左右上下に延長した仮想面によって画定される領域である載置面42の上に載置される。図3に示されるように、バッテリ収容凹部40、及び載置面42もまた、対称面Xを中心として左右対称に形成されている。   The battery 20 is housed in a battery housing recess 40 that is a range defined by the left and right side surfaces, the back surface, the bottom surface, and the power receiving unit support surface 34 that define the tray recess 30. Therefore, the power receiving unit support wall 35 facing rearward of the power receiving unit 32 corresponds to the front wall that defines the front edge of the battery housing recess 40. The battery 20 has a mounting surface 42 that is a region defined by a virtual surface obtained by extending the left and right side surfaces of the tray concave portion 30, the rear surface of the tray concave portion 30, and the power receiving unit support surface 34 left and right and up and down. Placed on the top. As shown in FIG. 3, the battery housing recess 40 and the mounting surface 42 are also formed symmetrically about the symmetry plane X.

受電部支持壁35には、左右方向中央の位置から後方に向けて突出する受電端子44が設けられている。受電端子44はバッテリ20からの電力を受電し、各モータ8、9、及び制御装置10に電力を供給するためのオス側端子である。   The power reception unit support wall 35 is provided with a power reception terminal 44 that protrudes rearward from the center position in the left-right direction. The power receiving terminal 44 is a male terminal for receiving power from the battery 20 and supplying power to the motors 8 and 9 and the control device 10.

図5に示されるように、受電部32には絶縁体であって前面及び背面を有し概ね板状に形成された受電端子板44Bが受電部32に対して、少なくとも左右に変位可能にフローティング(浮動)支持されている。受電端子板44Bには複数の受電端子44が左右方向に等間隔に並んで設けられている。各受電端子44は鉛直方向を主面とする板状に形成され受電端子板44Bを貫通している。受電端子板44Bの後端は後方に進むにつれて幅が狭くなるように設定されている。本実施形態では受電端子板44Bには7つの受電端子44が貫通している。   As shown in FIG. 5, a power receiving terminal plate 44 </ b> B that is an insulator and has a front surface and a back surface and is formed in a substantially plate shape is floating at least horizontally with respect to the power receiving portion 32. Supported (floating). The power receiving terminal plate 44B is provided with a plurality of power receiving terminals 44 arranged at equal intervals in the left-right direction. Each power receiving terminal 44 is formed in a plate shape whose main surface is the vertical direction, and penetrates the power receiving terminal plate 44B. The rear end of the power receiving terminal plate 44B is set so that the width becomes narrower as it advances backward. In the present embodiment, seven power receiving terminals 44 pass through the power receiving terminal plate 44B.

受電端子板44Bには左右両端に位置する受電端子44の左右外方に突設された1対の受電端子ガイド片46が設けられている。受電端子ガイド片46は左右対称に形成され、左右の受電端子ガイド片46は内方を向く受電端子ガイド面48をそれぞれ有している。左右の受電端子ガイド面48は後端において互いに離反するように形成されている。   The power receiving terminal plate 44 </ b> B is provided with a pair of power receiving terminal guide pieces 46 projecting from the left and right sides of the power receiving terminals 44 located at both left and right ends. The power receiving terminal guide pieces 46 are formed symmetrically, and the left and right power receiving terminal guide pieces 46 each have a power receiving terminal guide surface 48 facing inward. The left and right power receiving terminal guide surfaces 48 are formed so as to be separated from each other at the rear end.

図4に示されるように、本実施形態では、受電部支持壁35は受電端子44の下側において後方に膨出し、受電部32の後壁は対称面Xについての断面視において上下に段違いに形成されている。そのため、受電部支持面34は後方に向く2つの面(34U、34D)を含んでいる。受電端子44は受電部支持面34のうち上側の面34Uの下端に沿うように設けられている。下側の面34Dの上端には後方へ突出する前側係合部50が設けられている。   As shown in FIG. 4, in this embodiment, the power receiving unit support wall 35 bulges rearward on the lower side of the power receiving terminal 44, and the rear wall of the power receiving unit 32 is stepped up and down in a cross-sectional view with respect to the symmetry plane X. Is formed. Therefore, the power receiving unit support surface 34 includes two surfaces (34U and 34D) facing rearward. The power reception terminal 44 is provided along the lower end of the upper surface 34U of the power reception unit support surface 34. A front engagement portion 50 that protrudes rearward is provided at the upper end of the lower surface 34D.

図3に示されるように、トレイ凹部30の左右側面と受電部32の左右側面との間には間隙が設けられ、トレイ凹部30の左側面、受電部32の左側面及びトレイ凹部30の底面によって画定された連通溝52と、トレイ凹部30の右側面、受電部32の右側面及びトレイ凹部30の底面とによって画定された連通溝52とが形成されている。   As shown in FIG. 3, gaps are provided between the left and right side surfaces of the tray recess 30 and the left and right side surfaces of the power reception unit 32, and the left side surface of the tray recess 30, the left side surface of the power reception unit 32, and the bottom surface of the tray recess 30. The communication groove 52 defined by the right side surface of the tray recess 30, the right side surface of the power receiving unit 32, and the bottom surface of the tray recess 30 is formed.

図4に示されるように、載置面42は左右前後方向に延びた略長方形状に形成され、前下がりの傾斜を有する。更に、連通溝52の底面もまた、載置面42の前端から前下がりの傾斜を有し、バッテリトレイ19の前面に接続している。   As shown in FIG. 4, the mounting surface 42 is formed in a substantially rectangular shape extending in the left-right front-rear direction, and has a forward and downward inclination. Furthermore, the bottom surface of the communication groove 52 also has a front-down slope from the front end of the mounting surface 42 and is connected to the front surface of the battery tray 19.

図3に示されるように、載置面42には載置面42の前端近傍から載置面42の後端近傍まで前後方向に延在する左右1対のレール状部材60が設けられている。左右のレール状部材60は載置面42の平面視で互いに対称面Xを中心として鏡像をなし、それぞれ外側を向くガイド面62を有している。左右のレール状部材60は載置面42の前端及び後端の間の中間領域Mにおいて前後方向に延びて概ね平行に形成され、中間領域の前側では左右のレール状部材60は前方に向かうほど離反している。よって、左右のガイド面62もまた、中間領域Mよりも前側において前方に向かうほど離反している。更に、中間領域Mの後側では左右のレール状部材60は後方に向かうほど離反している。よって、レール状部材60はそれぞれ、中間領域Mの後側において、互いに後方に向かうほど離反するガイド部材補助部60Eを含み、ガイド部材補助部60Eには左右外方を向くガイド部材補助面62Eが形成されている。よって、左右ガイド面62はそれぞれ、中間領域Mの後側において、互いに後方に向かうほど離反するガイド部材補助面62Eを含んでいる。   As shown in FIG. 3, the mounting surface 42 is provided with a pair of left and right rail-like members 60 extending in the front-rear direction from the vicinity of the front end of the mounting surface 42 to the vicinity of the rear end of the mounting surface 42. . The left and right rail-shaped members 60 form mirror images around the symmetry plane X in plan view of the mounting surface 42, and have guide surfaces 62 that face outward. The left and right rail-shaped members 60 extend in the front-rear direction in the intermediate region M between the front end and the rear end of the mounting surface 42 and are formed substantially parallel to each other. I'm separated. Therefore, the left and right guide surfaces 62 are also farther away toward the front side in front of the intermediate region M. Further, on the rear side of the intermediate region M, the left and right rail-shaped members 60 are separated from each other toward the rear. Therefore, each of the rail-shaped members 60 includes guide member auxiliary portions 60E that are separated from each other toward the rear on the rear side of the intermediate region M, and the guide member auxiliary portions 60E have guide member auxiliary surfaces 62E facing left and right outwards. Is formed. Therefore, each of the left and right guide surfaces 62 includes guide member auxiliary surfaces 62E that are separated from each other toward the rear on the rear side of the intermediate region M.

図4に示されるように、左右のレール状部材60の上面は共に前下がりの傾斜を有し、後方ほど載置面42からの高さが高くなるように形成されている。   As shown in FIG. 4, the upper surfaces of the left and right rail-shaped members 60 both have a forward and downward inclination, and are formed such that the height from the mounting surface 42 increases toward the rear.

図3に示されるようにバッテリトレイ19の後端には上方に開口した後端収容凹部64が設けられている。図1に示されるように、バッテリ20がバッテリ収容凹部40に収められたとき、後端収容凹部64にはバッテリ20の後端が収容される。図4に示されるように、後端収容凹部64の左右中央の位置に上下に連通した孔が備えられ、その孔を通過するようにラッチ部材66が設けられている。ラッチ部材66の上端には前方に延びる係止爪が結合し、ラッチ部材66の下端はバッテリトレイ19に螺子止めされた支持部材に左右を軸線とする揺動可能に軸支されている。ラッチ部材66の下端には、その上端の係止爪を前方に移動するように付勢するねじりコイルばね68が設けられている。後端収容凹部64にはラッチ部材66の上端の係止爪を上方から覆うラッチ部材カバー69が設けられている。   As shown in FIG. 3, a rear end accommodating recess 64 that opens upward is provided at the rear end of the battery tray 19. As shown in FIG. 1, when the battery 20 is housed in the battery housing recess 40, the rear end housing recess 64 houses the rear end of the battery 20. As shown in FIG. 4, a hole communicating vertically is provided at a central position on the left and right sides of the rear end accommodating recess 64, and a latch member 66 is provided so as to pass through the hole. A latching claw extending forward is coupled to the upper end of the latch member 66, and the lower end of the latch member 66 is pivotally supported by a support member screwed to the battery tray 19 so that the left and right axes are swingable. The lower end of the latch member 66 is provided with a torsion coil spring 68 that urges the latching claw at the upper end to move forward. The rear end accommodating recess 64 is provided with a latch member cover 69 that covers the latching claw at the upper end of the latch member 66 from above.

図1及び図3に示されるように、バッテリトレイ19の上面にはバッテリ取外しスイッチ70が設けられている。バッテリ取外しスイッチ70は複数の部材を介してラッチ部材66に接続され、バッテリ取外しスイッチ70に加えられた押圧力によってラッチ部材66の上端の係止爪を後方へ移動させるリンク機構72が形成されている。バッテリ取外しスイッチ70への押圧を止めると、ラッチ部材66の上端の係止爪はねじりコイルばね68による付勢力に応じて前方に移動する。   As shown in FIGS. 1 and 3, a battery removal switch 70 is provided on the upper surface of the battery tray 19. The battery removal switch 70 is connected to the latch member 66 through a plurality of members, and a link mechanism 72 is formed to move the latching claw at the upper end of the latch member 66 rearward by the pressing force applied to the battery removal switch 70. Yes. When the pressing to the battery removal switch 70 is stopped, the latching claw at the upper end of the latch member 66 moves forward according to the urging force by the torsion coil spring 68.

図3に示されるように、更に、載置面42(バッテリ収容凹部40の底面)後端には対称面Xを中心とする左右対称に凸設された1対のバッテリ支持凸部76が設けられている。左右のバッテリ支持凸部76は、それぞれ左右のレール状部材60の左右方向内側の位置において、載置面42の後端縁から前方に延びるように形成され、前後方向にレール状部材60の後端近傍まで延びている。図4に示されるように、バッテリ支持凸部76は上段76U、及び下段76Dを有する階段状に形成され、上段76Uの載置面42からの高さはレール状部材60と概ね等しく、下段76Dはレール状部材60の概ね半分程度の高さに形成されている。   As shown in FIG. 3, a pair of battery support convex portions 76 are provided on the rear end of the mounting surface 42 (the bottom surface of the battery housing concave portion 40) so as to project symmetrically about the symmetry plane X. It has been. The left and right battery support protrusions 76 are formed so as to extend forward from the rear edge of the mounting surface 42 at positions on the left and right sides of the left and right rail-shaped members 60, respectively. It extends to the vicinity of the end. As shown in FIG. 4, the battery support convex portion 76 is formed in a stepped shape having an upper step 76U and a lower step 76D, and the height of the upper step 76U from the mounting surface 42 is substantially equal to the rail-like member 60, and the lower step 76D. Is formed approximately half as high as the rail-shaped member 60.

載置面42の後部であり左右のレール状部材60の左右外方には左右1対の薄板ばね状の第1付勢部材80が設けられている。第1付勢部材80は載置面42に螺子止めされ、一端側は載置面42に沿って前方に延び、前方に進むにつれて載置面42から上方へ離れるように形成されている。よって、一端側端部にバッテリ20から下方に向かう力が加わると、第1付勢部材80はバッテリ20を上方に付勢する。他端側は、載置面42に沿ってその後端まで延びた後、上方へ屈曲しバッテリ収容凹部40の背面に沿って上下方向について概ね背面の中央の位置まで上方に延び、上方に進むにつれてバッテリ収容凹部40の背面から後方へ離れるように形成されている。よって他端側端部にバッテリ20から後方に向く力が加えられると、第1付勢部材80はバッテリ20を前方に付勢する。左右の第1付勢部材80は側面視において概ねL字状の形状を有し、第1付勢部材80の一端側は上方に付勢する付勢装置(ばね部材)として、他端側は前方に付勢する付勢装置(ばね部材)として機能する。以下では、必要に応じて、第1付勢部材80の上方に付勢する側を突端、前方に付勢する側を基端と記載する。   A pair of left and right thin spring-like first biasing members 80 are provided on the left and right outer sides of the left and right rail-like members 60, which are the rear portions of the mounting surface 42. The first urging member 80 is screwed to the mounting surface 42, and one end side extends forward along the mounting surface 42, and is formed so as to move upward from the mounting surface 42 as it advances forward. Therefore, when a downward force is applied from the battery 20 to the one end portion, the first biasing member 80 biases the battery 20 upward. The other end side extends along the mounting surface 42 to the rear end thereof, then bends upward, extends upward along the back surface of the battery housing recess 40 in the vertical direction to a position substantially at the center of the back surface, and progresses upward. The battery housing recess 40 is formed so as to be separated from the rear side. Therefore, when a force directed backward from the battery 20 is applied to the other end, the first biasing member 80 biases the battery 20 forward. The left and right first urging members 80 have a substantially L-shape when viewed from the side, and one end side of the first urging member 80 is an urging device (spring member) that urges upward, and the other end side is It functions as a biasing device (spring member) that biases forward. In the following description, the side that urges upward of the first urging member 80 is referred to as a protruding end, and the side that urges forward is referred to as a base end as necessary.

載置面42の前部の左右のレール状部材60の前端中央の位置には薄板ばね状の第2付勢部材82が設けられている。第2付勢部材82はバッテリ収容凹部40の底壁に螺子止めされ、後方に延び後方に進むにつれて載置面42(バッテリ収容凹部40の底面)から離れるように形成されている。第2付勢部材82の後端部にバッテリ20から下方に向く力が加わると、バッテリ20は第2付勢部材82によって上方に付勢される。すなわち、第2付勢部材82は上方に付勢する付勢装置(ばね部材)として機能する。第2付勢部材82の後端部は下方に向けて屈曲するように形成されている。   A thin plate spring-like second urging member 82 is provided at the center of the front end of the left and right rail-like members 60 on the front portion of the mounting surface 42. The second urging member 82 is screwed to the bottom wall of the battery housing recess 40 and is formed to extend rearward and move away from the mounting surface 42 (bottom surface of the battery housing recess 40). When a downward force is applied from the battery 20 to the rear end portion of the second urging member 82, the battery 20 is urged upward by the second urging member 82. That is, the second biasing member 82 functions as a biasing device (spring member) that biases upward. The rear end portion of the second urging member 82 is formed to bend downward.

(バッテリ)
バッテリ20は、図1に示されるように、バッテリ20がバッテリ収容凹部40に収容されたときに前後に延びるよう配置される。以下ではバッテリ20が収容されたときを基準として、前後左右上下を定めて説明を行う。図1、図6、及び図7に示されるように、バッテリ20は左右対称に形成されている。以下では、その対称面を対称面Yと記載して説明を行う。
(Battery)
As shown in FIG. 1, the battery 20 is disposed so as to extend forward and backward when the battery 20 is accommodated in the battery accommodating recess 40. In the following description, the front, rear, left, right, top and bottom are defined based on the time when the battery 20 is accommodated. As shown in FIGS. 1, 6, and 7, the battery 20 is formed symmetrically. In the following description, the symmetry plane will be described as the symmetry plane Y.

バッテリ20は上方に向けて開口した凹部を有しその内部にバッテリセル98を収めるバッテリ本体100を備える。図8に示されるように、バッテリ本体100は前壁、底壁、左壁、右壁及び後壁を有し、上方に開口した略直方体の箱状に形成されている。バッテリ本体100の前後方向の長さはバッテリ収容凹部40の前後方向の長さよりも短く、左右方向の幅はバッテリ収容凹部40の左右方向の幅と概ね等しくなるように設定されている。   The battery 20 includes a battery body 100 that has a concave portion that opens upward and that houses the battery cell 98 therein. As shown in FIG. 8, the battery body 100 has a front wall, a bottom wall, a left wall, a right wall, and a rear wall, and is formed in a substantially rectangular parallelepiped box shape that opens upward. The length of the battery body 100 in the front-rear direction is shorter than the length of the battery housing recess 40 in the front-rear direction, and the width in the left-right direction is set to be approximately equal to the width in the left-right direction of the battery housing recess 40.

図6に示されるように、バッテリ20は更に、バッテリ本体100に結合しバッテリ本体100の凹部の上側の開口を覆うバッテリカバー102を備えている。本実施形態では、図8に示されるように、バッテリカバー102は前縁、及び後縁においてバッテリ本体100の前後壁に嵌合している。図7に示されるように、バッテリカバー102の後端には、バッテリ本体100の上面近傍に結合し後方へ略U字状に延出した把持部104が設けられている。バッテリカバー102の前端の上部には前方に向かって突出するカバー突出部108が設けられている。図8に示されるように、カバー突出部108の下面は側面視で後方に向けて斜め下向きに傾斜している。   As shown in FIG. 6, the battery 20 further includes a battery cover 102 that is coupled to the battery body 100 and covers an opening on the upper side of the recess of the battery body 100. In the present embodiment, as shown in FIG. 8, the battery cover 102 is fitted to the front and rear walls of the battery body 100 at the front edge and the rear edge. As shown in FIG. 7, a grip portion 104 is provided at the rear end of the battery cover 102 and is connected to the vicinity of the upper surface of the battery body 100 and extends rearward in a substantially U shape. A cover protrusion 108 that protrudes forward is provided at the top of the front end of the battery cover 102. As shown in FIG. 8, the lower surface of the cover protrusion 108 is inclined obliquely downward toward the rear in a side view.

図8に示されるようにバッテリ本体100の底面には、対称面Yを中心として所定の間隔をおいて左右対称に形成された1対のリブ状の被ガイド部材110が設けられている。被ガイド部材110はバッテリ本体100の底面の前側に設けられた前側底面リブ110Fと後側に設けられた後側底面リブ110Bとを備えている。前側底面リブ110Fはバッテリ本体100の底面の後側に位置する所定の位置から前方へ延び、バッテリ本体100の底面の前端から突出している。後側底面リブ110Bは、前側底面リブ110Fの後端の後側から後方に向けて延び、バッテリ本体100の底面の後端にまで延びている。前後方向における前側底面リブ110Fの後端、及び後側底面リブ110Bの前端の位置は、バッテリ20がバッテリトレイ19に完全に収容されたときに、第1付勢部材80の突端が前側底面リブ110Fの後端と後側底面リブ110Bの前端との間に位置するように設定されている。前側底面リブ110Fのバッテリ本体100の底面からの高さは後側底面リブ110Bと等しくなるように設定されている。   As shown in FIG. 8, a pair of rib-shaped guided members 110 are formed on the bottom surface of the battery body 100 so as to be symmetrical with respect to the symmetry plane Y at a predetermined interval. The guided member 110 includes a front bottom rib 110F provided on the front side of the bottom surface of the battery body 100 and a rear bottom rib 110B provided on the rear side. The front bottom rib 110 </ b> F extends forward from a predetermined position located on the rear side of the bottom surface of the battery main body 100 and protrudes from the front end of the bottom surface of the battery main body 100. The rear bottom rib 110B extends rearward from the rear side of the rear end of the front bottom rib 110F and extends to the rear end of the bottom surface of the battery body 100. The positions of the rear end of the front bottom rib 110F and the front end of the rear bottom rib 110B in the front-rear direction are such that when the battery 20 is completely accommodated in the battery tray 19, the protruding end of the first biasing member 80 is the front bottom rib. It is set so as to be positioned between the rear end of 110F and the front end of the rear bottom rib 110B. The height of the front bottom rib 110F from the bottom surface of the battery body 100 is set to be equal to the rear bottom rib 110B.

前側底面リブ110Fは、それぞれその前端上部からバッテリ本体100の前面に沿って上方に向かって延び、バッテリ本体100の前面の上下方向中間の地点にまで至る前面リブ112が結合している。前面リブのバッテリ本体100の前面からの高さは、被ガイド部材110のバッテリ本体100の底面からの高さと概ね等しく、レール状部材60の載置面42からの高さよりも小さい。前側底面リブ110F、後側底面リブ110B、前面リブの内方に向く面は、左右それぞれ内方に向く同一面上に形成されている。   The front bottom ribs 110 </ b> F extend upward along the front surface of the battery main body 100 from the front end upper portion thereof, and the front ribs 112 extending to the middle in the vertical direction on the front surface of the battery main body 100 are coupled to each other. The height of the front rib from the front surface of the battery main body 100 is substantially equal to the height of the guided member 110 from the bottom surface of the battery main body 100 and is smaller than the height from the mounting surface 42 of the rail-shaped member 60. The inwardly facing surfaces of the front bottom rib 110F, the rear bottom rib 110B, and the front rib are formed on the same surface facing inward.

左右の前側底面リブ110Fにはそれぞれ左右内方を向く前被ガイド面114Fが形成され、左右の後側底面リブ110Bにもまた、それぞれ左右内方を向く後被ガイド面114Bが形成されている。左側の前被ガイド面114Fと左側の後被ガイド面114Bとは同一面上に形成されており、以下では、左側の前被ガイド面114Fと左側の後被ガイド面114Bとを合わせて、左被ガイド面114と記載する。同様に、右側の前被ガイド面114Fと右側の後被ガイド面114Bとは同一面上に形成されており、右被ガイド面114と記載する。左右の被ガイド面114の間隔は、レール状部材60の前端における左右ガイド面62の間隔と概ね等しくなるように設定されている。   Each of the left and right front bottom ribs 110F is formed with a front guided surface 114F facing the left and right inner sides, and each of the left and right rear bottom ribs 110B is formed with a rear guided surface 114B facing each of the left and right inner sides. . The left front guided surface 114F and the left rear guided surface 114B are formed on the same surface. In the following description, the left front guided surface 114F and the left rear guided surface 114B are combined and left It is described as a guided surface 114. Similarly, the right front guided surface 114 </ b> F and the right rear guided surface 114 </ b> B are formed on the same surface and are referred to as the right guided surface 114. The interval between the left and right guided surfaces 114 is set to be approximately equal to the interval between the left and right guide surfaces 62 at the front end of the rail-shaped member 60.

バッテリ本体100の底面には、後側底面リブ110Bの後部の左右内方において左右方向に所定の長さを有して延在した凸部である第1底面係止部120が設けられている。第1底面係止部120は側面視において概ね台形状に形成され前向きの係止面124を有している。第1底面係止部120のバッテリ本体100の底面からの高さは概ね被ガイド部材110と等しい。   The bottom surface of the battery body 100 is provided with a first bottom surface locking portion 120 that is a convex portion extending in the left-right direction in the left-right inner side of the rear portion of the rear bottom surface rib 110B. . The first bottom surface locking portion 120 is formed in a substantially trapezoidal shape in a side view and has a forward locking surface 124. The height of the first bottom surface locking portion 120 from the bottom surface of the battery body 100 is substantially equal to the guided member 110.

バッテリ本体100は、その底面の前側左右中央の位置において、底面から概ね被ガイド部材110と同じ高さを有して突部を形成し、側面視において台形状をなす第2底面係止部122を備えている。第2底面係止部122は、バッテリ本体100の前後方向において、バッテリ20がバッテリトレイ19の内部に完全に収容されたときに第2付勢部材82の後端が第2底面係止部122の突出面に当接する位置となるように設定されている。第2底面係止部122の前側斜面は前後に延びる複数の突条をなし、第2底面係止部122の底面に接続している。   The battery main body 100 has a second bottom locking portion 122 having a trapezoidal shape in a side view, having a protrusion that is substantially the same height as the guided member 110 from the bottom surface at the center of the front left and right of the bottom surface. It has. The rear end of the second urging member 82 is located in the second bottom surface locking portion 122 when the battery 20 is completely accommodated in the battery tray 19 in the front-rear direction of the battery body 100. It is set so that it may be in a position where it abuts against the protruding surface. The front slope of the second bottom surface locking portion 122 forms a plurality of protrusions extending in the front-rear direction, and is connected to the bottom surface of the second bottom surface locking portion 122.

図8に示されるように、バッテリ本体100はその前端下部の左右中央において後上方に凹んだ凹部130を有している。凹部130は上壁、後壁、左壁及び右壁によって画定され、その後壁には端子保護部130Aが形成されている。図7に示されるように、端子保護部130Aは凹部130の後壁の上下方向略中央の位置から前方に向けて突出した複数の壁体である端子保護片130Bを有している。端子保護片130Bの後端縁は、底面視において概ねバッテリ本体100の前側面にまで突出し前後方向に揃うように形成されている。凹部130の後壁に8本の端子保護片130Bが対称面Yを中心に左右に均等な間隔で配置されている。各端子保護片130Bの左右側面には前後方向に延びる筋状の凹部が形成されている。更に、凹部130の後壁には、隣り合う端子保護片130Bの間、及び、左右両端に位置する端子保護片130Bの左右外方にバッテリ本体100の内部に連通する孔が設けられている。   As shown in FIG. 8, the battery body 100 has a recess 130 that is recessed rearward and upward in the left and right center of the lower front end. The recess 130 is defined by an upper wall, a rear wall, a left wall, and a right wall, and a terminal protection portion 130A is formed on the rear wall. As shown in FIG. 7, the terminal protection part 130 </ b> A has a terminal protection piece 130 </ b> B that is a plurality of wall bodies protruding forward from a position in the substantially vertical center of the rear wall of the recess 130. The rear end edge of the terminal protection piece 130B is formed so as to protrude substantially to the front side surface of the battery body 100 in the bottom view and to be aligned in the front-rear direction. Eight terminal protection pieces 130 </ b> B are arranged on the rear wall of the recess 130 at equal intervals on the left and right sides with respect to the symmetry plane Y. A streak-like recess extending in the front-rear direction is formed on the left and right side surfaces of each terminal protection piece 130B. Further, the rear wall of the recess 130 is provided with holes communicating with the inside of the battery body 100 between the adjacent terminal protection pieces 130B and on the left and right outer sides of the terminal protection pieces 130B located at both left and right ends.

バッテリ本体100の内部であり凹部130の後壁の後側面には、図8に示されるように、左右に板状に延びる絶縁体の給電端子板132Aが結合している。図9に示されるように、給電端子板132Aには前方へ延びる左右1対の板ばね部132Eを有する給電端子132が貫通し、それらの板ばね部132Eは前端において互いに当接している。給電端子132は左右方向に並んで配置され、それらの間隔は受電端子44の間隔と概ね等しい。両端に位置する給電端子132の左右外方には1対の給電端子ガイド片132Bが後方に向けて突設され、給電端子ガイド片132Bは給電端子132の後端よりも後側に延びている。給電端子ガイド片132Bの給電端子板132Aからの突出長さは端子保護片130Bの凹部130の後壁からの突出長さと概ね等しくなるように設定されている。給電端子ガイド片132Bはその左右外方の側面において給電端子ガイド面134を有し、給電端子ガイド面134はその前端において前方に進むほど近接するように形成されている。   As shown in FIG. 8, an insulating power supply terminal plate 132 </ b> A extending in a plate shape on the left and right is coupled to the rear side surface of the recess 130 inside the battery body 100. As shown in FIG. 9, a power supply terminal 132 having a pair of left and right leaf spring portions 132E extending forward passes through the feed terminal plate 132A, and the leaf spring portions 132E are in contact with each other at the front end. The power feeding terminals 132 are arranged side by side in the left-right direction, and the distance between them is substantially equal to the distance between the power receiving terminals 44. A pair of power supply terminal guide pieces 132 </ b> B project from the left and right outer sides of the power supply terminals 132 located at both ends, and the power supply terminal guide pieces 132 </ b> B extend to the rear side of the rear end of the power supply terminal 132. . The protruding length of the feeding terminal guide piece 132B from the feeding terminal plate 132A is set to be approximately equal to the protruding length of the terminal protection piece 130B from the rear wall of the recess 130. The power supply terminal guide piece 132B has a power supply terminal guide surface 134 on its left and right outer side surfaces, and the power supply terminal guide surface 134 is formed so as to approach the front end thereof as it moves forward.

図7に示されるように、給電端子132は端子保護片130Bの間に設けられた凹部130の後壁の孔を介して前方に突出している。更に、給電端子ガイド片132Bは両端に位置する端子保護片130Bの左右外方に設けられた孔を通過して前方に突出している。このとき、左(右)側の給電端子ガイド片132Bはそれぞれ対応する左端(右端)に位置する端子保護片130Bの左右外方の側面に形成された凹部に受容され、端子保護部130Aの前端近傍にまで延びている。更に、各給電端子132の板ばね部132Eは、後部において端子保護片130Bの左右側面に形成された凹部に受容されて、前方へ延び、前端において隣り合う端子保護片130Bの概ね左右中央において互いに当接している。   As shown in FIG. 7, the power supply terminal 132 protrudes forward through a hole in the rear wall of the recess 130 provided between the terminal protection pieces 130B. Further, the power supply terminal guide piece 132B protrudes forward through a hole provided on the left and right outer sides of the terminal protection piece 130B located at both ends. At this time, the left (right) side power supply terminal guide pieces 132B are received in the recesses formed on the left and right outer side surfaces of the terminal protection pieces 130B located at the corresponding left ends (right ends), respectively, and the front ends of the terminal protection portions 130A It extends to the vicinity. Further, the leaf spring portions 132E of the respective power supply terminals 132 are received in recesses formed on the left and right side surfaces of the terminal protection piece 130B at the rear portion, extend forward, and are substantially mutually centered at the left and right centers of the adjacent terminal protection pieces 130B at the front end. It is in contact.

バッテリ本体100には、その下面前端の左右中央の位置から前方に板状に突出する前側被係合部136が結合している。前側被係合部136は給電端子132の下側に位置し、前側被係合部136と給電端子132の間には上下方向に隙間が設けられている。   The battery body 100 is coupled to a front engaged portion 136 that protrudes forward in a plate shape from the center of the left and right front end of the lower surface. The front engaged portion 136 is located below the power supply terminal 132, and a gap is provided between the front engaged portion 136 and the power supply terminal 132 in the vertical direction.

バッテリ本体100の後端には、後面の左右中央の位置から後方に向かって突出し、ラッチ部材66の上端の係止爪と係合可能な被係止部140が設けられている。   At the rear end of the battery main body 100, a locked portion 140 that protrudes rearward from the center position on the left and right sides of the rear surface and is engageable with the locking claw at the upper end of the latch member 66 is provided.

バッテリ本体100の底面と左右側面との間にはそれぞれ、前面視において下方に進むにつれて左右内側に傾斜する傾斜面を有している。左右の傾斜面上には、前後方向に前側底面リブ110Fの後端と後側底面リブ110Bの前端との間において、傾斜面から下方に向けてバッテリ本体100の底面と面一となる高さまで突出する係止突起116が設けられている。   Between the bottom surface and the left and right side surfaces of the battery main body 100, there are inclined surfaces that incline to the left and right as they proceed downward in front view. On the left and right inclined surfaces, between the rear end of the front bottom rib 110F and the front end of the rear bottom rib 110B in the front-rear direction, the height is flush with the bottom surface of the battery body 100 from the inclined surface downward. A protruding locking protrusion 116 is provided.

バッテリ本体100の底面と左右側面との間の傾斜面上には、バッテリセル98を空冷するための吸気口160、及び排気口162がそれぞれ複数設けられている。   On the inclined surface between the bottom surface and the left and right side surfaces of the battery main body 100, a plurality of intake ports 160 and a plurality of exhaust ports 162 for cooling the battery cells 98 are provided.

次に本実施形態の電動芝刈機1の動作、特に、バッテリ20の脱着時の動作について説明する。   Next, the operation of the electric lawn mower 1 of the present embodiment, particularly the operation when the battery 20 is detached will be described.

(バッテリの使用時の状態)
図1に示されるように、電動芝刈機1のバッテリ20はバッテリトレイ19のバッテリ収容凹部40に収容された状態で使用される。
(Battery use state)
As shown in FIG. 1, the battery 20 of the electric lawn mower 1 is used in a state of being accommodated in the battery accommodating recess 40 of the battery tray 19.

図10、及び図11に示されるように、バッテリ20がバッテリ収容凹部40に収容されているとき、後端収容凹部64にはバッテリ20の把持部104が収容され、バッテリ本体100はバッテリ収容凹部40に収容されている。このとき、バッテリ本体100はその前側底面リブ110F、及び後側底面リブ110Bの間の底面においてレール状部材60の上面に当接しレール状部材60によって支持されて、載置面42上に配置されている。更に、受電端子44は給電端子132に挿入され電気的に接続している。   As shown in FIGS. 10 and 11, when the battery 20 is accommodated in the battery accommodating recess 40, the rear end accommodating recess 64 accommodates the grip portion 104 of the battery 20, and the battery main body 100 includes the battery accommodating recess. 40. At this time, the battery main body 100 abuts on the upper surface of the rail-shaped member 60 on the bottom surface between the front-side bottom rib 110F and the rear-side bottom rib 110B, is supported by the rail-shaped member 60, and is disposed on the mounting surface 42. ing. Further, the power receiving terminal 44 is inserted into and electrically connected to the power feeding terminal 132.

更に、第1付勢部材80の突端は係止突起116の底面に当接しバッテリ20を上方に付勢し、基端はバッテリ本体100の背面に当接しバッテリ20を前方に付勢している。第2付勢部材82は、第2底面係止部122の底面に当接しバッテリ20を上方に付勢している。これらの付勢力のうち上方の付勢力に対して、ラッチ部材66の係止爪はバッテリ収容凹部40に向けて突出し、被係止部140と係合することによってバッテリ20の後端の上方への移動を規制し、前側係合部50が前側被係合部136と係合しバッテリ20の前端の上方への移動を規制している。そのため、バッテリ20はバッテリ収容凹部40から突出せず、バッテリ収容凹部40の内部に保持される。   Further, the protruding end of the first urging member 80 abuts against the bottom surface of the locking projection 116 to urge the battery 20 upward, and the proximal end abuts against the back surface of the battery body 100 to urge the battery 20 forward. . The second urging member 82 abuts against the bottom surface of the second bottom surface locking portion 122 and urges the battery 20 upward. Of these urging forces, the latching claw of the latch member 66 protrudes toward the battery housing recess 40 with respect to the upper urging force and engages with the latched portion 140 to move above the rear end of the battery 20. The front engaging portion 50 engages with the front engaged portion 136 and restricts the upward movement of the front end of the battery 20. Therefore, the battery 20 does not protrude from the battery housing recess 40 and is held inside the battery housing recess 40.

(バッテリの取り外し)
バッテリ20の残量が低下したときなど、必要に応じてバッテリ20は作業者によって取り外される。
(Removing the battery)
When the remaining amount of the battery 20 is reduced, the battery 20 is removed by the operator as necessary.

バッテリ20が取り外されるとき、最初にバッテリ取外しスイッチ70が押圧される。バッテリ取外しスイッチ70の押圧によって、ラッチ部材66の係止爪が後方へ移動し、ラッチ部材66の係止爪と被係止部140との係合が解除される。それによって、バッテリ20の後部の上方への移動の可能となりバッテリ20の後部が第1付勢部材80、及び第2付勢部材82によって上方に付勢され持ち上がり、被係止部140がラッチ部材の係止爪の上面に当接する状態となる(図12の実線)。   When the battery 20 is removed, the battery removal switch 70 is first pressed. When the battery removal switch 70 is pressed, the latching claw of the latch member 66 moves rearward, and the engagement between the latching claw of the latch member 66 and the latched portion 140 is released. Accordingly, the rear portion of the battery 20 can be moved upward, and the rear portion of the battery 20 is urged upward by the first urging member 80 and the second urging member 82 and lifted, and the locked portion 140 is latched. It will be in the state contact | abutted on the upper surface of the latching claw (solid line of FIG. 12).

作業者はバッテリ20の把持部104を持ってバッテリ20の後端がバッテリ収容凹部40の後縁を超えるまで持ち上げる。このとき、バッテリ20は被係止部140がラッチ部材66の係止爪の上面に当接する状態(図12の実線)から、その前端が支承面36を概ね転がるように変位し(図12の一点鎖線)、バッテリ20の後端がバッテリ収容凹部40の後縁を超える状態(図12の二点鎖線)に至る。このとき、バッテリ20はカバー突出部108の下面が支承面36に接し支承面36に沿って転がるように回転する。   The operator holds the grip portion 104 of the battery 20 and lifts it until the rear end of the battery 20 exceeds the rear edge of the battery housing recess 40. At this time, the battery 20 is displaced from the state in which the locked portion 140 is in contact with the upper surface of the locking claw of the latch member 66 (solid line in FIG. 12) so that the front end of the battery 20 almost rolls on the support surface 36 (in FIG. 12). Dash-dot line), the state where the rear end of the battery 20 exceeds the rear edge of the battery housing recess 40 (two-dot chain line in FIG. 12). At this time, the battery 20 rotates so that the lower surface of the cover protrusion 108 is in contact with the support surface 36 and rolls along the support surface 36.

図13に示されるように、バッテリ20が支承面36に沿って転がるように回転するときに、バッテリ20が、回転のみを行った状態(図13の二点鎖線)からカバー突出部108の下面と支承面36とが当接したまま、その前端の下部がバッテリ収容凹部40の底に当接する状態(図13の実線)となるまで後方、且つ下方へ変位することができるように支承面36及びカバー突出部108が構成されていてもよい。   As shown in FIG. 13, when the battery 20 rotates so as to roll along the support surface 36, the lower surface of the cover protrusion 108 from the state in which the battery 20 only rotates (two-dot chain line in FIG. 13). The support surface 36 can be displaced rearward and downward until the lower end of the front end is in contact with the bottom of the battery housing recess 40 (solid line in FIG. 13) while the support surface 36 and the support surface 36 are in contact. And the cover protrusion part 108 may be comprised.

次に、作業者がバッテリ20を上方に持ち上げると、バッテリ20は回転しバッテリ20はバッテリ20の前面が下に向く状態となる。更に、作業者がバッテリ20を上方に持ち上げると、バッテリ20の前端はバッテリ収容凹部40の底から離れバッテリ20はバッテリ収容凹部40から取り外される。   Next, when the operator lifts the battery 20 upward, the battery 20 rotates and the battery 20 is in a state where the front surface of the battery 20 faces downward. Further, when the operator lifts the battery 20 upward, the front end of the battery 20 is separated from the bottom of the battery housing recess 40 and the battery 20 is removed from the battery housing recess 40.

(バッテリの取り付け)
必要に応じて、バッテリ20が作業者によって挿入される。バッテリ20を挿入するときには、作業者はバッテリ20の把持部104を把持し載置面42の上に運搬する。このときバッテリ20は重力によってバッテリ20の前面が下に向いている。
(Battery installation)
The battery 20 is inserted by the operator as necessary. When inserting the battery 20, the operator holds the grip portion 104 of the battery 20 and carries it on the mounting surface 42. At this time, the front surface of the battery 20 faces downward due to gravity.

次に作業者は、図14、及び図15の実線に示されるように、バッテリ20の前面が載置面42の左右方向において概ね中央であり、且つ、前後方向においてバッテリ20の前面が概ね中間領域Mに入るように配置し、バッテリ20の前面をレール状部材60の上面に当接させる(図15の実線)。このとき、図16(A)に示されるように、左右のガイド面62は、共に、左右の被ガイド面114の間にあり、左ガイド面62と左被ガイド面114とは相対し、且つ右ガイド面62と右被ガイド面114とは相対する位置にある。そのため、左ガイド面62は左被ガイド面114と協働しバッテリ20の右側への移動を規制し、右ガイド面62は右被ガイド面114と協働しバッテリ20の左側への移動を規制する。左ガイド面62は左被ガイド面114と、右ガイド面62は右被ガイド面114と共に離れた位置にあるため、バッテリ20の左右方向の移動は所定の範囲内に限定されている。   Next, as shown by the solid lines in FIG. 14 and FIG. 15, the operator has the front surface of the battery 20 approximately at the center in the left-right direction of the mounting surface 42 and the front surface of the battery 20 in the front-rear direction approximately at the middle. It arrange | positions so that it may enter into the area | region M, and the front surface of the battery 20 is contact | abutted on the upper surface of the rail-shaped member 60 (solid line of FIG. 15). At this time, as shown in FIG. 16A, the left and right guide surfaces 62 are both between the left and right guided surfaces 114, the left guide surface 62 and the left guided surface 114 are opposed to each other, and The right guide surface 62 and the right guided surface 114 are at opposite positions. Therefore, the left guide surface 62 cooperates with the left guided surface 114 to restrict the movement of the battery 20 to the right side, and the right guide surface 62 cooperates with the right guided surface 114 to restrict the movement of the battery 20 to the left side. To do. Since the left guide surface 62 and the right guide surface 62 are separated from each other with the left guided surface 114 and the right guided surface 114, the movement of the battery 20 in the left-right direction is limited to a predetermined range.

次に、作業者はバッテリ20を挿入すべく、図15の一点鎖線に示されるように、把持部104を支持する力を緩めバッテリ20を下方へ移動させる。バッテリ20は下方へ移動しつつバッテリ20の前端下部がレール状部材60の上面に沿って前方へ滑る。バッテリ20の前端下部が前方へ滑ることによって、バッテリ20は把持部104の近傍を通り左右方向に延びる仮想線を軸線とした回転を行う。バッテリ20は、図15の2点鎖線に示されるようにレール状部材60の上面に沿って前方へ滑り、バッテリ20の被係止部140の下面とラッチ部材66の上端とが接する状態となる。   Next, in order to insert the battery 20, the operator loosens the force for supporting the grip portion 104 and moves the battery 20 downward as indicated by a one-dot chain line in FIG. 15. While the battery 20 moves downward, the lower portion of the front end of the battery 20 slides forward along the upper surface of the rail-shaped member 60. When the front end lower portion of the battery 20 slides forward, the battery 20 rotates about an imaginary line that passes through the vicinity of the grip portion 104 and extends in the left-right direction as an axis. The battery 20 slides forward along the upper surface of the rail-shaped member 60 as indicated by a two-dot chain line in FIG. 15, and the lower surface of the locked portion 140 of the battery 20 and the upper end of the latch member 66 are in contact with each other. .

バッテリ20の底部の前部がレール状部材60の上面に沿って前方へ滑っているとき、図16(B)に示されるように、図16(A)と同様、左右ガイド面62は左右被ガイド面114と互いに離れた位置にある。しかし、図16(B)のときのガイド面62と被ガイド面114との距離は図16(A)のときよりも小さい。したがって、図16(B)のときのバッテリ20の左右方向の可動範囲は、図16(A)のときよりも小さくなっている。   When the front part of the bottom of the battery 20 is sliding forward along the upper surface of the rail-shaped member 60, as shown in FIG. The guide surface 114 is located away from each other. However, the distance between the guide surface 62 and the guided surface 114 in FIG. 16B is smaller than that in FIG. Therefore, the movable range in the left-right direction of the battery 20 at the time of FIG. 16B is smaller than that at the time of FIG.

バッテリ20の左右方向の可動範囲の変化は、図17により明瞭に示されている。図16には、バッテリ20の前面をレール状部材60の上面に当接させてからバッテリ20の前面が前方に滑り、バッテリ20がバッテリ収容凹部40に完全に受容されるまでの被ガイド面114の前端の軌跡が破線で示されている。図17に示されるように、バッテリ20の前面が前方に移動するにつれて、左ガイド面62は左被ガイド面114に接近し右ガイド面62は右被ガイド面114に接近する。したがって、バッテリ20の前面が前方に移動するにつれて、バッテリ20の左右方向の可動範囲が次第に狭められバッテリ20はバッテリ収容凹部40内の左右中心位置に向けてガイドされることになる。   The change in the movable range of the battery 20 in the left-right direction is clearly shown in FIG. In FIG. 16, the guided surface 114 from when the front surface of the battery 20 is brought into contact with the upper surface of the rail-shaped member 60 until the front surface of the battery 20 slides forward and the battery 20 is completely received in the battery housing recess 40 is shown. The trajectory of the front end of is indicated by a broken line. As shown in FIG. 17, as the front surface of the battery 20 moves forward, the left guide surface 62 approaches the left guided surface 114 and the right guide surface 62 approaches the right guided surface 114. Therefore, as the front surface of the battery 20 moves forward, the movable range of the battery 20 in the left-right direction is gradually narrowed, and the battery 20 is guided toward the left-right center position in the battery housing recess 40.

バッテリ20の被係止部140の下面とラッチ部材66の上端とが接すると、バッテリ収容凹部40に収めるべく、図18に示されるように、作業者はバッテリ20の後端をバッテリ収容凹部40に押し込む。   When the lower surface of the latched portion 140 of the battery 20 and the upper end of the latch member 66 are in contact with each other, the operator places the rear end of the battery 20 in the battery housing recess 40 as shown in FIG. Push into.

図18には被係止部140の下面とラッチ部材66の上端とが接した状態(図18の実線)からバッテリ20が所定の角度、回転を行い(図18の一点鎖線)、バッテリ20がバッテリ収容凹部40に収められた状態(図18の二点鎖線)となるまでのバッテリ20の変位が示されている。図18の一点鎖線で示されるように、バッテリ20が所定の角度の回転を行うと、側面視でバッテリ20の後側底面リブ110Bとガイド部材補助面62Eとが重なった領域Nが生じる。このとき、図19に示されるように、領域Nでは、右側のガイド部材補助面62Eと右被ガイド面114とが相対し、且つ、左側のガイド部材補助面62Eと左被ガイド面114とが相対している。そのため、バッテリ20の後部の左右方向の移動が所定の範囲内に制限されている。   In FIG. 18, the battery 20 rotates at a predetermined angle from the state in which the lower surface of the locked portion 140 is in contact with the upper end of the latch member 66 (solid line in FIG. 18) (the dashed line in FIG. 18). The displacement of the battery 20 until it becomes the state (two-dot chain line of FIG. 18) accommodated in the battery accommodation recessed part 40 is shown. As indicated by the alternate long and short dash line in FIG. 18, when the battery 20 rotates at a predetermined angle, a region N in which the rear bottom rib 110B of the battery 20 and the guide member auxiliary surface 62E overlap in a side view is generated. At this time, as shown in FIG. 19, in the region N, the right guide member auxiliary surface 62E and the right guided surface 114 face each other, and the left guide member auxiliary surface 62E and the left guided surface 114 are in contact with each other. Relative. Therefore, the movement of the rear part of the battery 20 in the left-right direction is limited within a predetermined range.

図17には側面視においてバッテリ20が挿入されるまでのバッテリ20の後側底面リブ110Bとガイド部材補助面62Eとが重なる領域N(図17(B)の領域N)のうち最も後端に位置する点(図17(B)の点P)の軌跡が一点鎖線で描かれている。   In FIG. 17, the rearmost bottom rib 110 </ b> B of the battery 20 and the guide member auxiliary surface 62 </ b> E overlap with each other until the battery 20 is inserted in the side view as the rearmost end. The locus of the position point (point P in FIG. 17B) is drawn with an alternate long and short dash line.

バッテリ20がより後方へ倒れるように回転すると後側底面リブ110Bとガイド部材補助面62Eとが重なる領域Nが前後へ拡大する。図17に示されるように、後側底面リブ110Bの間にガイド部材補助面62Eがあり、左右のガイド部材補助面62Eは後方に向かって離反しているため、後側底面リブ110Bとガイド部材補助面62Eとが重なる領域の後端における右ガイド面62と右被ガイド面114との間の距離と左ガイド面62と左被ガイド面114との間の距離とが共に減少する。そのため、バッテリ20が後方へ倒れる方向に回転するにつれて、バッテリ20の後部の左右方向の移動可能距離が減少し、次第にバッテリ20の後部が載置面42の左右中心の位置に位置決めされる。   When the battery 20 rotates so as to fall further rearward, a region N where the rear bottom rib 110B and the guide member auxiliary surface 62E overlap with each other expands forward and backward. As shown in FIG. 17, there is a guide member auxiliary surface 62E between the rear bottom ribs 110B, and the left and right guide member auxiliary surfaces 62E are separated rearward, so that the rear bottom rib 110B and the guide member are separated. Both the distance between the right guide surface 62 and the right guided surface 114 and the distance between the left guide surface 62 and the left guided surface 114 at the rear end of the region where the auxiliary surface 62E overlaps are reduced. Therefore, as the battery 20 rotates backward, the distance that the rear part of the battery 20 can move in the left-right direction decreases, and the rear part of the battery 20 is gradually positioned at the center of the left and right sides of the mounting surface 42.

図15に示されるように、バッテリ20の底部前端がレール状部材60の上面に沿って前方へ滑り、バッテリ20がバッテリ収容凹部40に収容されるまでに給電端子132は上側から受電端子44に挿入される。このとき、図20(A)に示されるように、受電端子44と給電端子132との相対位置が適正な位置から左右にずれている場合がある。図20(A)は受電端子44が給電端子132に対して適正な位置から左側にずれている場合に対応している。   As shown in FIG. 15, the front front end of the battery 20 slides forward along the upper surface of the rail-shaped member 60, and the power supply terminal 132 is changed from the upper side to the power receiving terminal 44 until the battery 20 is accommodated in the battery accommodating recess 40. Inserted. At this time, as illustrated in FIG. 20A, the relative position between the power receiving terminal 44 and the power feeding terminal 132 may be shifted from the proper position to the left and right. FIG. 20A corresponds to the case where the power receiving terminal 44 is shifted to the left from the proper position with respect to the power feeding terminal 132.

受電端子ガイド面48の後端が前方に進むほど内方に近接する傾斜面を有し、給電端子ガイド面134の前端が後方に進むほど外方に離反する傾斜面を有している。図20(B)に示されるように、受電端子44が給電端子132に挿入されるときに受電端子ガイド面48、及び給電端子ガイド面134が接すると、受電端子44はバッテリ20から左右方向の成分を持つ力を受ける。受電端子44が受電部32にフローティング支持されているため、その力に応じて受電端子板44Bは左右に移動する。図20(C)及び(D)に示されるように、受電端子ガイド片46が給電端子ガイド面134上を滑るように受電端子板44Bは左右に移動し、受電端子44が給電端子132の対をなす板ばね部132Eの間に挿入される。バッテリ20がバッテリ収容凹部40に収められたときに、7つの受電端子44が全て対応する板ばね部132Eの間に挿入され、受電端子44の主面の両面に板ばね部132Eが当接する。そのため、受電端子44と給電端子132とが電気的に接続する。   As the rear end of the power receiving terminal guide surface 48 advances forward, it has an inclined surface that is closer to the inside, and as the front end of the power supply terminal guide surface 134 advances backward, it has an inclined surface that is separated outward. As shown in FIG. 20B, when the power receiving terminal guide surface 48 and the power feeding terminal guide surface 134 come into contact with each other when the power receiving terminal 44 is inserted into the power feeding terminal 132, the power receiving terminal 44 is moved from the battery 20 in the left-right direction. Receive power with ingredients. Since the power receiving terminal 44 is floatingly supported by the power receiving unit 32, the power receiving terminal plate 44B moves to the left and right according to the force. As shown in FIGS. 20C and 20D, the power receiving terminal plate 44 </ b> B moves to the left and right so that the power receiving terminal guide piece 46 slides on the power supply terminal guide surface 134. Is inserted between the leaf spring portions 132E. When the battery 20 is housed in the battery housing recess 40, all the seven power receiving terminals 44 are inserted between the corresponding leaf spring portions 132 </ b> E, and the leaf spring portions 132 </ b> E come into contact with both surfaces of the main surface of the power receiving terminal 44. Therefore, the power receiving terminal 44 and the power feeding terminal 132 are electrically connected.

被係止部140の下面とラッチ部材66の上端とが接した状態からバッテリ20がバッテリ収容凹部40に収められた状態となるまで、被係止部140はラッチ部材66を付勢力に抗して後方に押し出している。バッテリ20がバッテリ収容凹部40に収められると、ラッチ部材66の係止爪が前方に突出し、被係止部140とラッチ部材66の係止爪とが係合する。これによって、バッテリ20がバッテリ収容凹部40内に係止され、バッテリ20の挿入が完了する。   From the state in which the lower surface of the locked portion 140 and the upper end of the latch member 66 are in contact with each other, the locked portion 140 resists the urging force until the battery 20 is stored in the battery housing recess 40. And pushed backwards. When the battery 20 is stored in the battery housing recess 40, the latching claw of the latch member 66 protrudes forward, and the latched portion 140 and the latching claw of the latch member 66 are engaged. Thus, the battery 20 is locked in the battery housing recess 40, and the insertion of the battery 20 is completed.

バッテリ20がバッテリ収容凹部40内に収容されたとき、図16に示されるように、左右被ガイド面114の間に左右ガイド面62が設けられ、左右ガイド面62の前端が対応する左右被ガイド面114の前端と当接しているため、バッテリ20の前部の左右方向の運動は規制されている。また、左右ガイド面62の後端が対応する左右被ガイド部材110の後端と当接しているため、バッテリ20の前部の左右方向の運動もまた規制されている。よって、ガイド面62と被ガイド部材110とによってバッテリ20の左右方向の運動が規制される。   When the battery 20 is accommodated in the battery accommodating recess 40, as shown in FIG. 16, the left and right guide surfaces 62 are provided between the left and right guided surfaces 114, and the front ends of the left and right guide surfaces 62 correspond to the left and right guided surfaces. Since it is in contact with the front end of the surface 114, the movement of the front portion of the battery 20 in the left-right direction is restricted. Further, since the rear ends of the left and right guide surfaces 62 are in contact with the rear ends of the corresponding left and right guided members 110, the movement of the front portion of the battery 20 in the left-right direction is also restricted. Therefore, the movement of the battery 20 in the left-right direction is restricted by the guide surface 62 and the guided member 110.

次に、本実施形態に係る電動芝刈機1の効果について説明する。   Next, the effect of the electric lawn mower 1 according to this embodiment will be described.

作業者はバッテリ20の後端を持ち上げるときに、カバー突出部108の下面をバッテリ収容凹部40の前側面の上縁に設けられた支承面36に当接させることによって、バッテリ20を本体2に支持させることができる。そのため、バッテリ20をバッテリ収容凹部40から取り出すときに、作業者の加える力が軽減され、作業者はバッテリ20を容易にバッテリ収容凹部40から取り出すことができる。   When the operator lifts the rear end of the battery 20, the lower surface of the cover projecting portion 108 is brought into contact with the support surface 36 provided on the upper edge of the front side surface of the battery housing recess 40, thereby bringing the battery 20 into the main body 2. Can be supported. Therefore, when the battery 20 is removed from the battery housing recess 40, the force applied by the operator is reduced, and the operator can easily remove the battery 20 from the battery housing recess 40.

更に、バッテリ20をバッテリ収容凹部40に収容するときに、カバー突出部108の下面及び支承面36を予め係合させる必要がない。そのため、バッテリ20の収容が容易である。   Furthermore, when the battery 20 is accommodated in the battery accommodating recess 40, it is not necessary to engage the lower surface of the cover protrusion 108 and the support surface 36 in advance. Therefore, the battery 20 can be easily accommodated.

カバー突出部108の下面は側面視で後方に向けて下向きの斜面を有し、支承面36が側面視で外向きに凸な形状をなしている。この構成によって、カバー突出部108の下面、及び、カバー突出部108の下面を支持する支承面36を容易に形成することができるため、バッテリ20及びバッテリ収容凹部40の構造が簡素になる。   The lower surface of the cover protrusion 108 has a slope that faces downward in a side view, and the support surface 36 has a shape that protrudes outward in a side view. With this configuration, the lower surface of the cover protrusion 108 and the support surface 36 that supports the lower surface of the cover protrusion 108 can be easily formed, so that the structure of the battery 20 and the battery housing recess 40 is simplified.

本実施形態では、支承面36が側面視で外向きに凸な湾曲形状をなしている。そのため、作業者はバッテリ20の後端を持ち上げられるときにカバー突出部108の下面を支承面36に摺接させることによって、バッテリ20を概ね回動するように持ち上げることができる。そのため、バッテリ20の持ち上げが容易になる。   In the present embodiment, the bearing surface 36 has a curved shape that protrudes outward in a side view. For this reason, the operator can lift the battery 20 so as to rotate substantially by sliding the lower surface of the cover protruding portion 108 against the support surface 36 when the rear end of the battery 20 is lifted. Therefore, the battery 20 can be easily lifted.

バッテリ収容凹部40の後側の側壁に設けられたラッチ部材66の上端はバッテリ取外しスイッチ70の押圧によって後方に移動し、ラッチ部材66と被係止部140との係合が容易に解除される。ラッチ部材66と被係止部140との係合が解除されると、バッテリ20はバッテリ収容凹部40の底に設けられた第1付勢部材80、及び第2付勢部材82によって上方に付勢され、バッテリ20がバッテリ20の後部とラッチ部材66とが係合しない位置まで持ち上がり、把持部104を容易に持つことができる。そのためバッテリ20の着脱操作が容易になる。   The upper end of the latch member 66 provided on the rear side wall of the battery housing recess 40 is moved rearward by the pressing of the battery removal switch 70, and the engagement between the latch member 66 and the locked portion 140 is easily released. . When the engagement between the latch member 66 and the locked portion 140 is released, the battery 20 is biased upward by the first biasing member 80 and the second biasing member 82 provided at the bottom of the battery housing recess 40. The battery 20 is lifted to a position where the rear portion of the battery 20 and the latch member 66 are not engaged with each other, and the grip portion 104 can be easily held. Therefore, the attachment / detachment operation of the battery 20 becomes easy.

バッテリ収容凹部40の前縁より下方へ連続する壁である前壁に設けられた前側係合部50と、バッテリ20の前端下部に設けられ前側係合部50と係合する前側被係合部136とによって、バッテリ20の上方の変位を規制されている。そのため、バッテリ20がバッテリ収容凹部40に収容されたときにバッテリ20がバッテリ収容凹部40の内部に係止されるため、第1付勢部材80、及び第2付勢部材82によってバッテリ20が上方に付勢されていても、バッテリ20の前部がバッテリ収容凹部40から上方に突出することがない。   A front engagement portion 50 provided on the front wall that is a wall continuous downward from the front edge of the battery housing recess 40, and a front engaged portion provided at the lower front end of the battery 20 and engaged with the front engagement portion 50. 136, the displacement above the battery 20 is restricted. Therefore, since the battery 20 is locked inside the battery housing recess 40 when the battery 20 is housed in the battery housing recess 40, the battery 20 is moved upward by the first biasing member 80 and the second biasing member 82. Even if the battery 20 is biased, the front portion of the battery 20 does not protrude upward from the battery housing recess 40.

バッテリ20は前部、及び後部において、第1付勢部材80、及び第2付勢部材82によって上方へ付勢されている。また、前側係合部50及び前側被係合部136が係合することによってバッテリ20の前部の上方への移動が規制され、ラッチ部材66及び被係止部140が係合することによってバッテリ20の後部の上方への移動が規制されている。そのため、バッテリのがたつきが防止される。また、電動芝刈機1の走行時等に発生する振動が第1付勢部材80、及び第2付勢部材82によって吸収され、給電端子132及び受電端子44の摩耗やバッテリ20の損傷が防止される。   The battery 20 is urged upward by a first urging member 80 and a second urging member 82 at the front part and the rear part. Further, when the front engaging portion 50 and the front engaged portion 136 are engaged, the upward movement of the front portion of the battery 20 is restricted, and when the latch member 66 and the locked portion 140 are engaged, the battery is engaged. The upward movement of the rear portion of 20 is restricted. Therefore, rattling of the battery is prevented. Further, vibrations generated during traveling of the electric lawn mower 1 are absorbed by the first urging member 80 and the second urging member 82, and wear of the power supply terminal 132 and the power receiving terminal 44 and damage to the battery 20 are prevented. The

バッテリ収容凹部40の前部の底部に第2付勢部材82が設けられているため、バッテリ20の取り出し時に、支承面36及びカバー突出部108の下面が離れバッテリ20がバッテリ収容凹部40の底部に落下した場合でも、第2付勢部材82によって衝撃が吸収されバッテリ収容凹部40の底部の損傷が防止される。   Since the second urging member 82 is provided at the bottom of the front portion of the battery housing recess 40, the lower surface of the support surface 36 and the cover protrusion 108 is separated when the battery 20 is taken out, and the battery 20 is bottom of the battery housing recess 40. Even when the battery is dropped, the impact is absorbed by the second urging member 82, and damage to the bottom of the battery housing recess 40 is prevented.

バッテリ収容凹部40の底面が前側に向けて下向きに傾斜しているため、重力に従ってバッテリ20をバッテリ収容凹部40の底面に沿って滑らせることによって、バッテリ20をバッテリ収容凹部40に収容することが可能となり、バッテリ20の収容が容易になる。   Since the bottom surface of the battery housing recess 40 is inclined downward toward the front side, the battery 20 can be housed in the battery housing recess 40 by sliding the battery 20 along the bottom surface of the battery housing recess 40 according to gravity. It becomes possible and accommodation of the battery 20 becomes easy.

バッテリ収容凹部40がバッテリ本体100よりも前後方向に長く形成されているため、バッテリ20の取り付けが容易である。バッテリ20とバッテリトレイ19の後壁との間に第1付勢部材80が設けられバッテリ20を前方に向けて付勢されているため、第1付勢部材80によって振動が吸収され、振動による端子の摩耗やバッテリ20の損傷が防止される。バッテリ20の前方への付勢と上方への付勢とが一枚の板ばねである第1付勢部材80によって行われているため構成が簡素である。   Since the battery accommodating recess 40 is formed longer in the front-rear direction than the battery body 100, the battery 20 can be easily attached. Since the first urging member 80 is provided between the battery 20 and the rear wall of the battery tray 19 and is urged toward the front, the vibration is absorbed by the first urging member 80 and is caused by the vibration. Terminal wear and damage to the battery 20 are prevented. Since the forward biasing and the upward biasing of the battery 20 are performed by the first biasing member 80 that is a single leaf spring, the configuration is simple.

バッテリ20の後端が持ち上げられた直後はバッテリ20の前端はバッテリ収容凹部40の内部にある。そのため、給電端子132がバッテリ20の前面以外の側面に設けられる場合に比べ、給電端子132がバッテリ20の前面に設けられる場合では給電端子132が受電端子44から離れる速度が遅くなり、給電端子132及び受電端子44の保護が図られる。   Immediately after the rear end of the battery 20 is lifted, the front end of the battery 20 is inside the battery housing recess 40. Therefore, when the power supply terminal 132 is provided on the front surface of the battery 20 compared to the case where the power supply terminal 132 is provided on the side surface other than the front surface of the battery 20, the speed at which the power supply terminal 132 moves away from the power reception terminal 44 is reduced. In addition, the power receiving terminal 44 is protected.

以上で具体的実施形態の説明を終えるが、本発明は上記実施形態に限定されることなく幅広く変形実施することができる。   Although the description of the specific embodiment is finished as described above, the present invention is not limited to the above embodiment and can be widely modified.

本実施形態ではカバー突出部108の下面を側面視で後方に向けて下向きの傾斜を有するように構成されていたが、カバー突出部108の下面は側面視で凹形状の湾曲形状をなすように構成されていてもよい。この場合でも、作業者はバッテリ20の後端を持ち上げるときに、カバー突出部108の下面を支承面36に支持させ、カバー突出部108の下面及び支承面36を摺接させて、バッテリ20を概ね回動するように持ち上げることができる。そのため、バッテリ20を持ち上げるときにバッテリ20はバッテリ収容凹部40において本体2に支持されるため、作業者はバッテリ20を容易に持ち上げることができる。   In the present embodiment, the lower surface of the cover protrusion 108 is configured to have a downward slope toward the rear in a side view, but the lower surface of the cover protrusion 108 has a concave curved shape in a side view. It may be configured. Even in this case, when the operator lifts the rear end of the battery 20, the lower surface of the cover projecting portion 108 is supported by the support surface 36, and the lower surface of the cover projecting portion 108 and the support surface 36 are slidably contacted. It can be lifted up so as to rotate. Therefore, since the battery 20 is supported by the main body 2 in the battery housing recess 40 when the battery 20 is lifted, the operator can easily lift the battery 20.

カバー突出部108の下面の形状と支承面36の形状とが互いに相補的な形状をなすように構成してもよい。例えば、側面視でカバー突出部108の下面の曲率と支承面36の曲率とを概ね等しくなるように構成してもよい。この場合、作業者がバッテリを持ち上げるときのカバー突出部108の下面及び支承面36が互いに当接する面積が大きくなるため、作業者はバッテリを安定して持ち上げることができる。   You may comprise so that the shape of the lower surface of the cover protrusion part 108 and the shape of the support surface 36 may mutually complement a shape. For example, you may comprise so that the curvature of the lower surface of the cover protrusion part 108 and the curvature of the support surface 36 may become substantially equal in a side view. In this case, since the area where the lower surface of the cover protrusion 108 and the support surface 36 abut each other when the worker lifts the battery increases, the worker can lift the battery stably.

本実施形態では、バッテリ20の後端がバッテリ収容凹部40の後縁を超えた直後に作業者がバッテリ20を上方に持ち上げたが、バッテリ20の前面が概ね下に向くまで、作業者は、カバー突出部108を支承面36に当接させつつバッテリ20を回転させ、その後、バッテリ20と上方に持ち上げてもよい。   In the present embodiment, the worker lifts the battery 20 upward immediately after the rear end of the battery 20 exceeds the rear edge of the battery accommodating recess 40, but until the front surface of the battery 20 faces substantially downward, The battery 20 may be rotated while the cover protrusion 108 is in contact with the support surface 36 and then lifted upward from the battery 20.

1 :電動芝刈機
2 :本体
20 :バッテリ
36 :支承面
40 :バッテリ収容凹部
44 :受電端子
50 :前側係合部
80 :第1付勢部材(ばね部材)
82 :第2付勢部材(ばね部材)
108 :カバー突出部
132 :給電端子
134 :前側被係合部
1: Electric lawn mower 2: Main body 20: Battery 36: Bearing surface 40: Battery housing recess 44: Power receiving terminal 50: Front side engaging portion 80: First biasing member (spring member)
82: Second urging member (spring member)
108: Cover protrusion 132: Feeding terminal 134: Front engaged portion

Claims (10)

電動作業機であって、
上側に上方に向けて開口するバッテリ収容凹部を有する本体と、
前記バッテリ収容凹部に収容されるバッテリとを備え、
前記バッテリの一端側端部の上部には一端側に突出する突出部が設けられ、
前記バッテリの他端側端部には把持部が設けられ、
少なくとも前記バッテリが前記バッテリ収容凹部から取り出されるときに前記突出部の下面を支持する支承面が、前記バッテリ収容凹部の一端側の上縁に設けられていることを特徴とする電動作業機。
An electric working machine,
A main body having a battery housing recess that opens upward on the upper side;
A battery housed in the battery housing recess,
The upper part of the one end side end part of the battery is provided with a projecting part projecting to one end side,
A grip portion is provided at the other end of the battery,
An electric working machine characterized in that at least a support surface that supports a lower surface of the projecting portion when the battery is taken out from the battery housing recess is provided on an upper edge of one end of the battery housing recess.
前記突出部の前記下面が側面視で他端に向かって下向きの傾斜を有し、
前記支承面が側面視で外向きに凸な形状をなすことを特徴とする請求項1に記載の電動作業機。
The lower surface of the protrusion has a downward slope toward the other end in a side view;
The electric working machine according to claim 1, wherein the support surface has an outwardly convex shape in a side view.
前記突出部の前記下面は側面視で凹形状の湾曲形状をなすことを特徴とする請求項2に記載の電動作業機。   The electric working machine according to claim 2, wherein the lower surface of the projecting portion has a concave curved shape in a side view. 前記支承面が側面視で外向きに凸な湾曲形状をなすことを特徴とする請求項2又は請求項3に記載の電動作業機。   The electric working machine according to claim 2 or 3, wherein the bearing surface has a curved shape that protrudes outward in a side view. 前記突出部の前記下面の形状と前記支承面の形状とが互いに相補的な形状をなすことを特徴とする請求項2〜請求項4のいずれか1つに記載の電動作業機。   5. The electric working machine according to claim 2, wherein a shape of the lower surface of the protruding portion and a shape of the support surface are complementary to each other. 前記バッテリ収容凹部の底部の他端側に前記バッテリ収容凹部内に収容された前記バッテリを上方に付勢するばね部材が設けられ、前記バッテリ収容凹部の他端側の側壁に前記バッテリの他端側端部に係合するラッチ部材が設けられていることを特徴とする請求項1又は請求項2に記載の電動作業機。   A spring member for biasing the battery housed in the battery housing recess upward is provided on the other end side of the bottom of the battery housing recess, and the other end of the battery is provided on the side wall on the other end side of the battery housing recess. The electric working machine according to claim 1, wherein a latch member that engages with the side end portion is provided. 前記バッテリ収容凹部の前記一端側の上縁より下方へ連続する壁に設けられた係止部と、少なくとも前記バッテリの上方の変位を規制するべく、前記係止部に係合可能に前記バッテリの前記一端側の下部に設けられた被係止部とを更に有することを特徴とする請求項1〜請求項3のいずれか1つの項に記載の電動作業機。   A locking portion provided on a wall that continues downward from the upper edge of the one end side of the battery housing recess, and at least a displacement of the battery that can be engaged with the locking portion so as to restrict displacement above the battery. The electric working machine according to any one of claims 1 to 3, further comprising a locked portion provided at a lower portion on the one end side. 前記バッテリ収容凹部の前記一端側の底部に、前記バッテリ収容凹部内に収容され前記バッテリを上方に付勢するばね部材が設けられていることを特徴とする請求項4に記載の電動作業機。   The electric working machine according to claim 4, wherein a spring member that is housed in the battery housing recess and biases the battery upward is provided at a bottom portion of the battery housing recess on the one end side. 前記バッテリ収容凹部の底面が前記一端側に向けて下向きに傾斜していることを特徴とする請求項1〜請求項5のいずれか1つの項に記載の電動作業機。   The electric working machine according to any one of claims 1 to 5, wherein a bottom surface of the battery accommodating recess is inclined downward toward the one end side. 前記バッテリの側に設けられた給電端子と、
前記バッテリ収容凹部の側に設けられた受電端子とを有し、
前記バッテリの前記一端側の側面に給電端子が設けられ、
前記バッテリ収容凹部の前記上縁の側に受電端子が設けられていることを特徴とする請求項1〜請求項6のいずれか1つの項に記載の電動作業機。
A power supply terminal provided on the battery side;
A power receiving terminal provided on the side of the battery housing recess,
A power supply terminal is provided on the side surface on the one end side of the battery,
The electric working machine according to any one of claims 1 to 6, wherein a power receiving terminal is provided on the upper edge side of the battery housing recess.
JP2016233542A 2016-11-30 2016-11-30 Electric working machine Pending JP2018088854A (en)

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CN201780074310.XA CN110381726B (en) 2016-11-30 2017-11-17 Electric working machine
EP17875114.5A EP3549432B1 (en) 2016-11-30 2017-11-17 Electric work machine

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