JP2014060928A - Electric husbandry machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric husbandry machine which has a battery with a grip part attachably/detachably mounted on a battery mounting stand of the machine main body while avoiding the grip part and the battery mounting stand from being overloaded.SOLUTION: When a lock/release lever switchable between a lock position and a release position is switched to the lock position, a locking part of the lever engages with a locked part of a battery and a manual operation part of the lever approaches a grip part, so that an operator is kept from gripping the grip part with the lever held in the lock position while the battery is prevented from being removed from the battery mounting stand. On the other hand, when the lever is manually switched to the release position, the locking part is disengaged from the locked part and the manual operation part is spaced from the grip part such that the battery is allowed to be detached from the battery mounting stand and the operator is allowed to grip the grip part.

Description

  The present invention relates to an electric management machine in which a battery with a gripping part that acts as a drive source is detachably attached to a main body.

  Conventionally, a battery that acts as a drive source is detachably attached to the body body, and an electric management machine has been proposed and used (for example, see Patent Document 1 below).

Specifically, in the electric management machine, the machine body is provided with a battery mounting table.
And the mounting state of the battery on the battery mounting table is locked or released according to human operation, thereby preventing the battery from being unintentionally detached from the machine body. However, it is possible to carry the battery alone when charging or maintaining the battery.

  By the way, the battery is provided with a gripping portion such as a grip grip that can be gripped by a user, thereby improving transportability when the battery is moved alone.

  The grip portion is a portion that is gripped when the battery is transported alone, but is a portion that is easy for an operator to grip even when the battery is attached to the machine body.

That is, in a state where the battery is mounted on the machine body, an operator may change the attitude of the electric management machine using the grip portion.
However, the gripping part and the battery mounting table do not have a strength that can withstand such usage, and in some cases, the gripping part and / or the battery mounting base may be damaged.

JP 2010-273579 A

  The present invention has been made in view of such prior art, and is an electric management machine in which a battery with a gripping part is detachably mounted on a battery mounting base of a main body, and the gripping part and the battery mounting base are provided. An object of the present invention is to provide an electric management machine that can effectively prevent damage to the machine.

  In order to achieve the above object, the present invention is an electric management machine including a machine body, a tillage unit coupled to the machine body, and a battery detachably attached to the machine body, wherein the battery A battery main body, a gripping part connected to the battery main body, and a locked part connected to the battery main body, and the machine body is in a state where the gripping part is exposed to the outside. A battery mounting table on which the battery main body is mounted, a lock / release lever that can selectively take a lock position and a release position according to human operation, and urging the lock / release lever toward the lock position The lock / release lever includes a locking action portion that acts on the locked portion and a human operation portion that receives a human operation force, and the lock / release lever Is the urging force of the urging member In the state where the locking action portion is engaged with the locked portion, the battery main body portion is prevented from being detached from the battery mounting table. While the manual operation unit is close to the grip part so as to prohibit the operator from gripping the grip part while the release lever remains in the locked position, the lock / release lever is moved by the manual operation force of the operator. In the state of being positioned at the release position against the urging force of the urging member, the engagement of the locking action portion with the locked portion is released and the battery main body portion is detached from the battery mounting table. Provided is an electric management machine in which the artificial operation unit is separated from the gripping part so as to allow the operator to grip the gripping part while being separable.

  Preferably, the locked portion extends from the battery main body portion to one side in the longitudinal direction of the machine body, and the gripping portion is further disposed on one side in the longitudinal direction of the machine body than the locked portion, and the lock / release is performed. The lever can be swung around a reference axis along the width direction of the machine body, and is configured to take the lock position and the release position when swung to one side and the other side around the reference axis, respectively.

In the various embodiments, preferably, the electric management machine may include a discharging electric circuit that electrically connects the battery in a state of being mounted on the battery mounting table to the tillage unit.
The electrical circuit for discharging includes a disconnecting switch that interrupts electrical connection between the battery and the tillage unit when the lock / release lever is positioned at the release position.

More preferably, the electric management machine is electrically connected at one end to the battery mounted on the battery mounting table, and can be electrically connected to the outside through the charging coupler at the other end. And a charging electric circuit arranged in parallel with the discharging electric circuit with respect to the battery.
The charging coupler is provided at a position that is closed by the lever when the lock / release lever is positioned at the lock position and is accessible from the outside when the lever is positioned at the release position.

According to the electric management machine of the present invention, since the battery with the gripping part is detachably attached to the battery mounting table of the main body, the transportability when the battery is transported alone can be improved. Further, in a state where the lock / release lever that can take the lock position and the release position is positioned at the lock position by the urging force of the urging member, the locking action portion of the lever is in contact with the locked portion of the battery. An artificial operation portion of the lever so as to prevent the operator from gripping the grip portion while the lever is still in the locked position while preventing the battery from being detached from the battery mounting table. In the state where the lever is positioned at the release position against the biasing force of the biasing member by the manual operation force of the operator while The manual operation unit is configured to release the engagement of the battery from the battery mounting table and allow the operator to hold the grip part. Therefore, when the battery is attached to the body body, an operator is prevented from performing a moving operation such as a posture change on the electric management machine via the grip portion.
Accordingly, it is possible to effectively prevent an excessive load from being applied to the lock / release lever, the grip portion, and the battery mounting table, and to prevent damage to these parts.

  The locked portion extends from the battery body portion to one side in the longitudinal direction of the machine body, the gripping portion is further arranged on the one side in the longitudinal direction of the machine body, and the lock / release lever is If it is configured to be swingable around a reference axis along the width direction of the machine body and to take the lock position and the release position when swinged to one side and the other side around the reference axis, respectively, the locking action portion And the relative positional relationship of the said to-be-latched part and the relative positional relationship of the said artificial operation part and the said holding part can be adjusted easily.

  The electric management machine includes an electric circuit for discharging that electrically connects the battery mounted on the battery mounting table to a tillage unit, and the lock / release lever is in a release position in the electric circuit for discharging. If a disconnecting switch for disconnecting the electrical connection between the battery and the tillage unit is provided, the control of the electric management machine is performed when the battery is charged in a state of being attached to the main body. It is possible to reliably prevent the surge voltage from being applied to the part.

  Furthermore, one end of the electric management machine is electrically connected to the battery mounted on the battery mounting table, and the other end can be electrically connected to the outside via a charging coupler. An electric circuit for charging, the electric circuit for charging being arranged in parallel with the electric circuit for discharging with respect to the battery, wherein the charging coupler is connected to the lock / release lever at the lock position. In this case, if the lock / release lever is located at the release position, the discharge electric device can be closed by the lever, and the lock / release lever is located at the release position when the lever is located at the release position. Only when the circuit is in the cut-off state, it is allowed to perform the charging operation via the charging coupler. Therefore, it is possible to reliably prevent malfunction due to the voltage from the charging power source being applied to the control unit and the tilling unit during charging.

FIG. 1 is a perspective view of a management machine according to an embodiment of the present invention. FIG. 2 is a side view of the management machine. FIG. 3 is a plan view of the management machine. FIG. 4 is an enlarged exploded perspective view of the management machine. FIG. 5 is a cross-sectional view taken along the line V-V in FIG. 3 and shows a state where the lock / release lever in the management machine is located at the lock position. FIG. 6 is a cross-sectional view taken along the same cross-sectional line as FIG. 5 and shows a state where the lock / release lever is located at the release position. FIG. 7 is a perspective view of a frame structure in the management machine. FIG. 8 is a perspective view of the management machine with the storage cover attached and the handle frame and handle portion positioned at the storage position. FIG. 9 is a schematic electric circuit diagram of the management machine. FIG. 10 is an enlarged perspective view of the vicinity of the resistance bar mounting portion in the management machine. FIG. 11 is a longitudinal side view of the management machine, showing a state where the resistance bar is mounted in the first posture. FIG. 12 is an enlarged side view of the frame structure. FIG. 13 is a longitudinal side view of the management machine, showing a state where the resistance bar is mounted in a second posture. FIG. 14 is an exploded perspective view of the management machine in a state where the storage cover is attached. FIG. 15 is a perspective view of the storage cover connected to the resistance rod. FIG. 16 is a longitudinal sectional view of the storage cover in a state of being connected to the resistance rod. FIG. 17 is a perspective view illustrating a method of connecting the storage cover to the resistance rod, and shows a state during connection and a state after connection.

DESCRIPTION OF EMBODIMENTS Hereinafter, a preferred embodiment of a management machine according to the present invention will be described with reference to the accompanying drawings.
1 to 3 are a perspective view, a side view, and a plan view of the management machine 1 according to the present embodiment, respectively.

As shown in FIGS. 1 to 3, the management machine 1 according to the present embodiment is an electric management machine including a battery 70 that acts as a drive source.
That is, as shown in FIGS. 1 to 3, the management machine 1 includes a machine body 10, a tiller 50 connected to the machine body 10, and the battery 70 attached to the machine body 10. ing.

FIG. 4 shows an enlarged exploded perspective view of the management machine 1.
5 and 6 are cross-sectional views taken along the line VV in FIG.

The battery 70 is detachably attached to the body body 10.
Specifically, as shown in FIGS. 4 to 6, the battery 70 includes a battery main body 71, a gripping portion 73 connected to the battery main body 71, and a locked state connected to the battery main body 71. Part 75.

  On the other hand, as shown in FIGS. 4 to 6, the machine body 10 includes a battery mounting table 20 on which the battery main body 71 is mounted in a state where the grip 73 is exposed to the outside, and a human operation. It has a lock / release lever 25 that can selectively take a lock position and a release position, and a biasing member (not shown) that biases the lock / release lever 25 toward the lock position.

  In the present embodiment, the main body 10 has a frame structure 30, and the battery mounting table 20 is supported by the frame structure 30.

FIG. 7 shows a perspective view of the frame structure 30.
As shown in FIG. 7, the frame structure 30 includes a pair of left and right tillage frames 31, a handle frame 32, a pair of left and right main frames 33, a rear cross frame 34, and a front cross frame 35. Yes.

  The pair of tillage frames 31 support both end portions of the tillage portion 50 at the lower end portions, and the upper end portions are directly or indirectly connected to each other at the center in the body width direction.

The handle frame 32 has a lower end connected to the upper ends of the pair of left and right tillage frames 31 and a handle portion 36 provided at the upper end.
In the present embodiment, the handle frame 32 is connected via a first connecting member 41 so as to be swingable around a first pivot shaft 41a along the width direction of the machine body. (See FIG. 7) and a retracted position tilted forward from the working position.

FIG. 8 is a perspective view of the management machine 1 in a state where the handle frame 32 is located at the storage position.
FIG. 8 shows a state where the battery 70 is removed.
Reference numeral 100 in FIG. 8 denotes a storage cover for covering the tillage unit 50 when the management machine 1 is transferred or stored. The storage cover 100 will be described later.

  Further, the handle portion 36 is connected via a second connecting member 42 so as to be swingable around a second pivot shaft 42a along the width direction of the machine body, and a work position along a substantially vertical direction (see FIG. 7). And a retracted position tilted backward from the working position (see FIG. 8).

As shown in FIG. 7, the pair of main frames 33 is connected to the middle region in the vertical direction of the pair of tillage frames 33 in a state of extending in the front-rear direction across the pair of tillage frames 31.
The rear cross frame 34 connects the pair of main frames 33 on the rear side of the pair of tillage frames 31.
The front cross frame 35 connects the pair of main frames 33 in front of the pair of tillage frames 31.

In such a configuration, the battery mounting table 20 is supported by the pair of main frames 33.
In the present embodiment, as shown in FIG. 4 and the like, the pair of main frames 33 has a front end portion extending forward from the battery mounting table 20, and a moving wheel 80 is connected to the front extending portion 33a. Is installed.

  As shown in FIGS. 4 to 6, the lock / release lever 25 includes a locking action portion 26 that engages with and disengages from the locked portion 75 and a human operation portion 27 that receives human operation force. ing.

  Specifically, in a state where the lock / release lever 25 is positioned at the lock position by the urging force of the urging member (see FIG. 5), the locking action portion 26 engages with the locked portion 75. Thus, the battery main body 71 is prevented from being detached from the battery mounting table 20.

  As shown in FIG. 5, the artificial operation unit 27 is configured to prevent the operator from gripping the grip portion 73 while the lock / release lever 25 is positioned at the lock position. Is close to.

  That is, in the state where the lock / release lever 25 is positioned at the lock position, the artificial operation unit 27 is brought into contact with the gripping unit 73 or the artificial operation unit 27 and the gripping unit 73. Are close to the grip portion 73 to such an extent that entry of the operator's finger into the gap is prohibited.

  In the present embodiment, as shown in FIG. 5, when the lock / release lever 25 is positioned at the lock position, the artificial operation unit 27 moves to the gap with the gripping unit 73. It is close to the distance that prohibits the entry of the operator's finger.

  On the other hand, when the lock / release lever 25 is positioned at the release position against the urging force of the urging member by the manual operation force by the operator (see FIG. 6), The engagement with the locked portion 75 is released, and the battery body 71 can be detached from the battery mounting table 20.

At this time, as shown in FIG. 6, the artificial operation unit 27 is separated from the grip portion 73 so as to allow the operator to grip the grip portion 73.
That is, in a state where the lock / release lever 25 is positioned at the release position, the artificial operation unit 27 causes the operator's finger to enter the gap between the artificial operation unit 27 and the gripping unit 73. It is spaced from the gripping portion 73 so as to be acceptable.

  In the management machine 1 having such a configuration, the effect of the battery 70 from the machine body 10 is obtained while the effect of improving the transportability of the battery alone by adopting the battery 70 with the grip portion 73 is obtained. At the same time as preventing the warped detachment, an excessive load is applied to the grip portion 73, the battery mounting table 20, and the lock / release lever 25 in a state where the battery 70 is mounted on the body body 10. Can be prevented.

  That is, as described above, when the lock / release lever 25 is positioned at the lock position (see FIG. 5), the locking action portion 26 is engaged with the locked portion 75 and the battery 70 is engaged. Against unintentional detachment from the machine body 10.

  At this time, the artificial operation unit 27 is in contact with or close to the gripping portion 73, and an operator is prohibited from gripping the gripping portion 73 while the lock / release lever 25 is positioned at the lock position. The

  Specifically, when the operator tries to grip the grip portion 73 while the lock / release lever 25 is positioned at the lock position, the manual operation portion 27 is moved from the grip portion 73 by the gripping operation of the worker. The lock / release lever 25 is moved to the separating direction, that is, to the release position.

  That is, when the operator holds the grip portion 73, the lock / release lever 25 is moved from the lock position (see FIG. 5) to the release position (see FIG. 6). The engagement with the locked portion 75 is released.

  Accordingly, it is possible to prevent the operator from moving the management machine 1 through the grip portion 73 in a state where the battery 70 is mounted on the machine body 10.

That is, when an operator changes the attitude of the management machine 1 through the grip portion 73 while the battery 70 is attached to the machine body 10, the grip portion 73, the battery mounting table 20, and the like The entire mass of the management machine 1 acts on the lock / release lever 25, and an excessive load is applied to these parts, which may possibly be damaged.
The above configuration can effectively prevent such inconvenience.

  In the present embodiment, as shown in FIGS. 5 and 6, the locked portion 75 extends from the battery main body portion 71 to one side in the front-rear direction of the machine body (the front side in the illustrated embodiment). The gripping portion 73 is further disposed on the one side in the longitudinal direction of the machine body than the locked portion 75.

  The lock / release lever 25 is swingable about a reference axis 25a along the width direction of the machine body. When the lock / release lever 25 is swung to one side and the other side about the reference axis 25a, the lock position and the release lever, respectively. It is supposed to take a position.

According to such a configuration, the relative positional relationship between the locking action portion 26 and the locked portion 75 and the relative positional relationship between the artificial operation portion 27 and the gripping portion 73 can be accurately set. .
In the present embodiment, the lock / release lever 25 is supported by the battery mounting table 20.

FIG. 9 shows an electrical circuit diagram of the management machine 1 according to the present embodiment.
The management machine 1 includes an electric circuit 200 for discharge.
As shown in FIG. 9, the electric circuit for discharging 200 electrically connects the battery 70 in a state of being placed on the battery mounting table 20 to the tilling unit 50.

  In the present embodiment, as shown in FIG. 9, the management machine 1 includes a control unit 250 that controls the operation of the electric motor 51 provided in the tilling unit 50, and The electric circuit 200 is configured to electrically connect the battery 70 to the control unit 250 together with the tilling unit 50.

  As shown in FIG. 9, the electrical circuit for discharging 200 includes a disconnect switch 205 inserted between the battery 70 and the tillage unit 50, and the disconnect switch 205 includes the lock / release lever 25. When it is located at the release position, it is configured to take a blocking state.

By providing the disconnect switch 205, a surge voltage to the control unit 250 that can occur when the battery 70 is charged while being attached to the machine body 10 while preventing cost increase as much as possible. Can be reliably prevented.
The disconnection operation of the disconnect switch 205 is realized by using the movement of the lock / release lever 25 from the lock position to the release position.

  Further, reference numeral 201 in FIG. 9 is a discharging coupler on the battery side, and reference numeral 202 is a discharging coupler on the machine side.

  Furthermore, as shown in FIG. 9, the management device 1 according to the present embodiment includes a charging electric circuit 210 arranged in parallel with the discharging electric circuit 200 with respect to the battery 70.

  The electric circuit for charging 210 has one end electrically connected to the battery 70 placed on the battery mounting table 20 and the other end electrically connected to the outside via a charging coupler 211. It is possible.

  The charging coupler 211 is closed by the lever 25 when the lock / release lever 25 is positioned at the lock position (see FIG. 5) and externally when the lever 25 is positioned at the release position. It is provided at a position where it can be accessed (see FIG. 6).

According to such a configuration, the charging operation via the charging coupler 211 is performed only when the electric circuit for discharging 200 is in a cut-off state by positioning the lock / release lever 25 at the release position. It is acceptable.
Therefore, at the time of charging, it is possible to reliably prevent a malfunction from being applied to the control unit 250 or the tilling unit 50 from the charging power source.

As shown in FIGS. 1, 2, 4, and the like, the management machine 1 according to the present embodiment is further a resistance bar supported by the machine body 10 so as to be located on the rear side of the tiller 50. 90.
As shown in FIG. 2, the resistance bar 90 is detachably mounted on a resistance bar mounting portion 45 provided in the machine body 10.

FIG. 10 shows an enlarged perspective view of the vicinity of the resistance rod mounting portion 45.
FIG. 11 shows a vertical side view of the management machine 1.
Further, FIG. 12 shows an enlarged side view of the frame structure 30.

The resistance rod mounting portion 45 is supported by the frame structure 30.
As shown in FIGS. 5, 6, and 10 to 12, in the present embodiment, the resistance bar mounting portion 45 is supported by the pair of tillage frames 31.
Naturally, instead of or in addition to this, the resistance rod mounting portion 45 can be supported by the pair of main frames 33.

  As shown in FIG. 11, the resistance bar 90 includes a mounting area 91 that is detachably mounted on the resistance bar mounting portion 45, and an extension area 95 that extends from the mounting area 91.

  The resistance rod 90 has a first posture (see FIG. 11) located rearward as the extending region 95 goes downward, and a second posture obtained by inverting the first posture in the front-rear direction. The second position (see FIG. 13) positioned forward can be selectively taken as the existing area 95 goes downward.

  Specifically, as shown in FIGS. 11 and 13, the mounting region 91 has one side in the front-rear direction (the side where the extension region 95 is bent with respect to the mounting region 91) and the other side (the extension). A first engagement recess 92a and a second engagement recess 92b are formed on the end surface on the opposite side of the region 95, respectively.

  On the other hand, as shown in FIGS. 10 to 13, the resistance rod mounting portion 45 can swing around a pocket portion 46 into which the mounting region 91 is inserted from below and a rotation axis 47 a along the body width direction. The operation piece 47, a locking pin 48 provided on the locking piece 47, and a biasing member 49 that biases the operation piece 47 to one side around the rotation axis 47a.

In such a configuration, as shown in FIG. 11, in the state in which the mounting region 91 is inserted into the pocket portion 46 so that the first engagement recess 92 a faces the locking pin 48, The operating piece 47 is urged to one side around the rotation axis 47a by the urging force, and the locking pin 48 is engaged with the first engaging recess 92a, so that the resistance bar 90 is brought into the first posture. Retained.
In the state where the resistance bar 90 is in the first posture, the extension region 95 is located rearward as it goes downward, that is, is separated from the tilling portion 50.

  In the state where the resistance rod 90 is mounted in the first posture, the operation piece 47 is swung to the other side around the rotation axis 47a against the urging force of the urging member 49, and the locking When the pin 48 is removed from the first engaging recess 92 a, the mounting area 91 can be removed from the pocket portion 46.

Then, as shown in FIG. 13, the biasing force of the biasing member 49 in a state where the mounting region 91 is inserted into the pocket portion 46 so that the second engagement recess 92 b faces the locking pin 48. As a result, the operation piece 47 is urged to one side around the rotation axis 47a and the locking pin 48 is engaged with the second engagement recess 92b, whereby the resistance rod 90 is held in the second posture. The
In the state where the resistance rod 90 is in the second posture, the extension region 95 is positioned forward as it goes downward, that is, close to the tillage unit 50.

  As shown in FIG. 8, the management machine 1 according to the present embodiment further includes the storage cover 100 for enclosing the tillage unit 50 when the management machine 1 is transferred or stored.

FIG. 14 is an exploded perspective view of the management machine 1 in a state where the storage cover 100 is attached.
15 and 16 are a perspective view and a longitudinal sectional view of the storage cover 100, respectively.
Further, FIG. 17 is a perspective view showing a method of attaching the storage cover 100 to the resistance rod 90. FIG.

  As shown in FIGS. 14 to 17, the storage cover 100 is a box shape having a peripheral wall 101 and a bottom wall 105 and having an upper opening, and the resistance bar 90 in the second posture is formed. The extension region 95 can be detachably attached.

  Specifically, as shown in FIGS. 15 to 17, the storage cover 100 is provided with a connection structure 110 for mounting on the resistance rod 90.

In the present embodiment, the connection structure 110 is provided so as to communicate with the rear wall 101R of the peripheral wall 101 through the inside and outside of the storage cover 100, and the opening width is larger than the plate thickness of the resistance bar 90. The slit 111 is provided.
The rear wall 101R is separated by the slit 111 into a first region 101R (1) on one side in the body width direction and a second region 101R (2) on the other side.

  The connection structure 110 further includes a first locking piece 112 (1) provided at an upper portion of an edge of the first region 101R (1) facing the second region 101R (2) and the second region 101R (1). A second locking piece 112 (2) provided at a portion corresponding to the first locking piece 112 (1) of the edge of the region 101R (2) facing the first area 101R (1) is provided. doing.

  The first and second regions 101R (1), 112 (1), 112 (2) are arranged such that the distance between them is smaller than the thickness of the resistance bar 90. 101R (2) is extended, and the resistance rod 90 can be elastically deformed in a direction passing through the slit 111.

As shown in FIGS. 15 to 17, the connecting structure 110 further includes the resistance rod 90 in a region below the first and second locking pieces 112 (1) and 112 (2) in the slit 111. A first stop portion 113 provided on the inner peripheral surface of the storage cover 100 so as to come into contact with the tip portion when the tip is inserted from the tip portion, and the tip portion comes into contact with the first stop portion 113. When the corresponding portion of the resistance rod 90 is moved into the storage cover 100 while elastically deforming the first and second locking pieces 112 (1) and 112 (2) in the state of being in the state, the resistance rod 90 is moved. And a second stop portion 114 that stops the movement in contact with the predetermined portion.
In addition, in FIG. 17, in addition to the state before the said resistance rod 90 passes the said 1st and 2nd latching pieces 112 (1) and 112 (2), the state after passing is also shown, The state after passing is marked with a dash 90 ′.

  As shown in FIGS. 8 and 14, by attaching the resistance rod 90 in a state where the storage cover 100 is attached to the extension region 95 to the resistance rod attachment portion 45 in the second posture, The tillage part 50 is accommodated in the storage cover 100 through the upper opening.

  According to the management machine 1 having such a configuration, it is possible to simplify the structure of the storage cover 100 without providing a dedicated member for supporting the storage cover 100 that covers the tillage unit 50. it can.

DESCRIPTION OF SYMBOLS 1 Management machine 10 Machine body 20 Battery mounting base 25 Lock / release lever 25a Reference axis 26 Locking action part 27 Artificial operation part 50 Plowing part 70 Battery 71 Battery main body part 73 Grasping part 75 Locked part 200 Electric circuit 205 for discharge Disconnect switch 210 Charging electrical circuit 211 Charging coupler

Claims (4)

An electric management machine comprising a main body, a tillage unit coupled to the main body, and a battery detachably attached to the main body,
The battery includes a battery main body, a gripping portion connected to the battery main body, and a locked portion connected to the battery main body,
The airframe main body includes a battery mounting table on which the battery main body portion is mounted with the gripping portion exposed to the outside, and a lock / release lever that can selectively take a lock position and a release position according to human operation. And a biasing member that biases the lock / release lever toward the lock position,
The lock / release lever has a locking action portion that acts on the locked portion, and a human operation portion that receives a human operation force,
In a state in which the lock / release lever is positioned at the lock position by the urging force of the urging member, the locking action portion engages with the locked portion, and the battery main body portion moves to the battery mounting table. While the artificial operation unit is close to the gripping unit so as to prohibit the operator from gripping the gripping part while the lock / release lever is still in the locked position When the lock / release lever is positioned at the release position against the urging force of the urging member by the manual operation force by the operator, the engagement of the locking action portion with the locked portion is released. The human body operation unit is separated from the gripping unit so that the battery main body unit can be detached from the battery mounting table and the operator can grip the gripping unit. Electric tiller to. The locked portion extends from the battery body portion to one side in the front-and-rear direction of the body, and the grip portion is further disposed on the one side in the front-and-rear direction of the body than the locked portion,
The lock / release lever is swingable about a reference axis along the width direction of the machine body. When the lock / release lever is swinged around one side and the other side around the reference axis, the lock / release lever takes the lock position and the release position, respectively. The electric management machine according to claim 1, wherein An electrical circuit for discharging that electrically connects the battery in a state of being mounted on the battery mounting table to the tillage unit;
3. The electrical circuit for discharging includes a disconnecting switch that disconnects an electrical connection between the battery and the tillage unit when the lock / release lever is positioned at a release position. The electric management machine as described in. A charging electric circuit having one end electrically connected to the battery mounted on the battery mounting table and the other end electrically connectable to the outside via a charging coupler. And an electric circuit for charging arranged in parallel with the electric circuit for discharging with respect to the battery,
The charging coupler is provided at a position that is closed by the lever when the lock / release lever is in the locked position and is accessible from the outside when the lever is in the release position. The electric management machine according to claim 3, wherein

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