JP2004146083A - Battery device and working machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a battery device capable of easily making a daily checking of a battery and of preventing a simple removal of the battery. <P>SOLUTION: The battery 65 is installed inside a front opening 63 of a seat frame 12 in free attachment and detachment. A coating bracket 84 is fixed with a bolt 85 to a top end of the front opening of the seat frame 12 to coat a terminal of the battery 65 in free locking. A battery cover 101 blocking the front opening 63 by locking the coating bracket 84 in a closed state is fitted at the front opening 63 with a hinge body 102 in free opening and closing. The battery can be daily checked with ease from a part of the front opening 63 by opening and closing the battery cover. Since the front opening 63 is not wholly open unless the bracket 84 is removed by removing the bolt 85, the battery 65 can be prevented from being simply removed. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a battery device including a battery and a work machine including the battery device.
[0002]
[Prior art]
Generally, a hydraulic shovel has an upper revolving structure rotatably mounted on a lower traveling structure capable of self-propelling, and a body containing an engine and the like is provided on the upper revolving structure.
[0003]
At the front of the body, a front working device operable by a hydraulic actuator is attached to the upper revolving unit, and the body houses an engine, a hydraulic pump that discharges hydraulic oil, and the like. .
[0004]
Further, a battery for supplying power to an electrical unit such as a starter motor of an engine, a controller, various sensors, an instrument of a hydraulic shovel, or a light is mounted in the body.
[0005]
Then, the battery is placed on the battery support, a cover covering the entire upper surface of the battery is attached from above the battery, and the cover is detachably fixed to the battery support with bolts and wing nuts. Is known (for example, refer to Patent Document 1).
[0006]
Further, an L-shaped fitting is disposed in a battery chamber provided with an openable / closable battery cover in the body, and both corners of a lower end portion of the battery are supported by the L-shaped fittings. There is also known a configuration in which a lock fitting that can be opened and closed is attached to the device (for example, see Patent Document 2).
[0007]
[Patent Document 1]
JP-A-2002-8613 (page 3, FIG. 1)
[0008]
[Patent Document 2]
Japanese Utility Model Publication No. 6-83507 (page 2, FIG. 1)
[0009]
[Problems to be solved by the invention]
However, the hydraulic excavator described in Patent Literature 1 has a problem in that daily inspection of the battery is not easy because the battery is not exposed unless the cover is removed by loosening the wing nut.
[0010]
Further, in the hydraulic excavator described in Patent Document 2 described above, if a key portion is not provided on the battery cover, the battery housed in the battery chamber can be easily removed and the battery may be stolen. are doing.
[0011]
SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a battery device capable of easily inspecting a battery on a daily basis and preventing easy removal of the battery, and a working machine including the battery device. It is.
[0012]
[Means for Solving the Problems]
According to the first aspect of the present invention, a frame having an opening, a battery which is detachably disposed inside the opening of the frame and supplies electric power to the electrical unit, and which can be detachably attached to the opening of the frame by a fixing member. And a covering member that covers a part of the battery so as to be lockable and closes a part of the opening of the frame; A battery device having an opening and closing member for closing the opening of the frame, wherein a part of the battery removably arranged inside the opening of the frame is covered so as to be able to lock, and the opening of the opening of the frame is provided. A covering member that partially closes the frame is detachably provided at the opening of the frame with a fixing member, and an opening / closing member that is locked to the covering member in a closed state to close the opening of the frame is provided at the opening of the frame so as to be freely opened and closed. By opening and closing the opening and closing member, Rukoto the battery from part of the opening can be easily daily inspection by, and so unless the opening does not open all remove the cover member to remove the fixing member can prevent easy removal of the battery.
[0013]
According to a second aspect of the present invention, in the battery device of the first aspect, the opening / closing member is at least partially engaged with the covering member by the movable operation in the closed state of the opening / closing member, and the opening / closing member is locked to the covering member. The opening / closing member can be easily opened and closed because the opening / closing member is locked to the covering member by the movable operation of the engagement operating portion in a state where the opening / closing member is closed.
[0014]
According to a third aspect of the present invention, in the battery device according to the first or second aspect, the covering member includes a back plate portion that covers a terminal of the battery. By covering the terminal, the battery terminal cannot be touched only by opening the opening / closing member, so that it is possible to prevent a worker or the like from accidentally touching the battery terminal, and for example, the battery terminal is connected to the battery terminal. Since the wires and the like are confined inside the back plate portion, it is possible to prevent the wires and the like from being damaged when the opening and closing member is opened and closed.
[0015]
According to a fourth aspect of the present invention, there is provided a working machine including a machine body including the battery device according to any one of the first to third aspects, and a working device operably provided on the machine body. By providing the battery device according to any one of 1 to 3 in the machine main body, the battery can be easily inspected daily, and the battery can be easily removed, so that the battery can be prevented from being stolen, for example. Can be improved.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the embodiments shown in FIGS.
[0017]
FIG. 5 shows a hydraulic excavator 1 as a working machine, in which an upper revolving superstructure 3 is rotatably provided on a self-propelled lower traveling body 2. A body 4 is provided on the upper swing body 3, and the lower traveling body 2, the upper swing body 3, and the body 4 constitute a machine main body 5.
[0018]
On the front side of the upper revolving unit 3, a front working device 6 as an excavating working device that can protrude is operably provided.
[0019]
On the other hand, on the rear side of the body 4, there is provided a power device housing portion 11 protruding upward from the upper side surface of the upper swing body 3. As shown in FIGS. 1 to 3, the power device accommodating portion 11 includes a seat frame 12 serving as a frame of the power device accommodating portion 11. The seat frame 12 includes a substantially rectangular ring-shaped frame body 13. Each of the corners of the frame body 13 has a plate-like leg 14 with its longitudinal direction parallel to each other. One end of each of the fourteen in the longitudinal direction is integrally connected. Here, the width between the pair of legs 14 located at the front is formed larger than the width between the pair of legs 14 located at the rear.
[0020]
In addition, the seat frame 12 has a pair of support frames as elongated rod-shaped supports whose lower ends are connected to the upper swing body 3 behind the upper swing body 3 and whose upper ends protrude upward. 15 are provided. The support frame 15 forms a pair of legs 14 located behind the seat frame 12.
[0021]
Further, the support frame 15 is provided with a mounting frame 21 formed by connecting a pair of substantially L-shaped edge frames 16 in parallel by a plate-shaped beam frame (not shown).
[0022]
Here, the pair of edge frames 16 in the mounting frame 21 are a pair of legs 14 located in front of the seat frame 12 and a pair of legs 14 located behind the seat frame 12. It constitutes both sides of the frame 13 connected to the portion 14. The beam frame forms a front side of a frame 13 that connects a pair of legs 14 located on a front side of the seat frame 12 and a rear side of the frame 13. Therefore, the mounting frame 21 composed of the edge frame 16 and the beam frame includes a pair of legs 14 located in front of the seat frame 12 and a frame body connected to upper ends of the pair of legs 14. 13 are constituted.
[0023]
Further, an elongated flat plate-shaped contact piece 22 is formed on both sides and the rear outer surface of the frame 13 in the edge frame 16 of the mounting frame 21. The contact piece 22 is formed in a substantially U-shape that is continuous from both sides of the frame 13 to the rear thereof.
[0024]
The mounting frame 21 is mounted such that one end 23 which is the lower end of the front leg 14 positioned vertically below each of the pair of edge frames 16 projects upward from near the center of the upper swing body 3. It is removably attached by bolting to a frame mounting base 24 as a frame connecting portion and is connected thereto.
[0025]
Further, the lower surface of the other end portion 25 which is the rear side of the frame positioned rearward in the horizontal direction of each of the pair of edge frames 16 of the mounting frame 21 is located on the rear side positioned vertically above the support frame 15. It is detachably attached and connected to the upper end 26 of the leg by bolting.
[0026]
In a space 31 formed by the mounting frame 21 and the support frame 15, approximately the upper half of the engine 32 whose lower half is accommodated in the upper revolving unit 3 is accommodated. And the support frame 15.
[0027]
Further, a main pump 33 which is a hydraulic pump as a fluid pressure pump driven by the engine 32 is attached to the engine 32, as shown in FIG. The main pump 33 has a built-in pilot pump (not shown) which is a hydraulic pump as a fluid pressure pump. Therefore, the main pump 33 is also housed in the space 31 formed by the mounting frame 21 and the support frame 15.
[0028]
Further, as shown in FIG. 4, a substantially cylindrical air filter 34 is mounted above the engine 32 via a connection pipe (not shown).
[0029]
As shown in FIGS. 1 to 4, the space 31 formed by the seat frame 12 and the support frame 15 supplies and discharges a main pump 33, that is, circulates hydraulic oil and a pilot pump. A working oil tank 41 is stored as a working fluid tank for storing each of the pilot oil to be used. The hydraulic oil tank 41 is attached to the left side of the engine 32 on the upper swing body 3.
[0030]
A recess 42 is provided below the front side of the hydraulic oil tank 41. The housing recess 42 is opened forward and downward of the hydraulic oil tank 41, and the main pump 33 attached to the engine 32 is fitted and housed in the housing recess 42.
[0031]
As shown in FIGS. 2 and 3, a thin plate-shaped lower tank mounting bracket 47 is welded and mounted to the lower side of the housing concave portion 42 of the hydraulic oil tank 41. The lower end of the bracket 47 is fixed to a part of the upper side surface of the upper swing body 3 by bolting, and the lower side of the hydraulic oil tank 41 is fixed to the upper swing body 3.
[0032]
Further, a plate-shaped tank mounting bracket 51 is welded to a position slightly below the front side surface of the hydraulic oil tank 41 and above a return pipe 48 horizontally protruding forward from the front side surface of the hydraulic oil tank 41. Have been. As shown in FIG. 2, the tank mounting bracket 51 includes a mounting base end portion 52 mounted along the front side surface of the hydraulic oil tank 41. A support portion 53 that is bent in an L-shape from the mounting base end portion 52, protrudes in the horizontal direction, and extends to the front of the distal end portion of the return pipe 48 is provided integrally.
[0033]
Further, a bent portion 54 bent vertically downward between the distal end portion of the return pipe 48 and the edge frame 16 and extending to a position below the return pipe 48 is integrally formed on the distal end side of the support portion 53. At the distal end side of the bent portion 54, a mounting portion 56 bent forward of the body 4 and mounted on a rear mounting base 55 provided at the rear of the frame mounting base 24 is integrally provided. ing. That is, the tank mounting bracket 51 is bent in a crank shape in a side view along the upper side and the front side of the return pipe 48, and is provided so as to avoid the return pipe 48.
[0034]
Therefore, the front side of the hydraulic oil tank 41 is fixed on the upper swing body 3 by the tank mounting bracket 51.
[0035]
Further, a pair of rib plate-shaped front support portions 61 are welded to the tank mounting bracket 51 on the front side surface of the bent portion 54, respectively. These front support portions 61 are bent in an L-shape from the front end side of the front weld portion 62 welded along the front side surface of the bent portion 54 to the front of the body 4 and extend to the center region in the width direction of the leg portion 14. Each is provided so as to extend forward.
[0036]
Further, a front opening 63 as an opening is provided at the front formed by the front portion of the frame body 13 of the seat frame 12 and the pair of legs 14 on the front side, as shown in FIGS. Have been. The front opening 63 has a lower end portion substantially flush with the upper surface of the support portion 53 of the tank mounting bracket 51, and an upper end portion formed by cutting out from the front side to the upper side of the frame 13. That is, the edge of the front opening 63 is formed in a substantially L-shape.
[0037]
A battery space 64 as a battery space portion is formed above the support portion 53 of the tank mounting bracket 51 inside the front opening portion 63. In the battery space 64, the tank mounting bracket 51 is provided. From the front side on the support portion 53 to the front support portion 61 of the engine 32 as a battery for supplying electric power to an electric component such as a starter motor, a controller, various sensors, instruments of the hydraulic shovel 1, and lights. A battery 65 is placed.
[0038]
As shown in FIGS. 2 and 3, the battery 65 is formed in a substantially rectangular shape having a width direction in the width direction of the body 4, and is provided inside the seat frame 12, that is, the mounting frame 21 and the support frame 15. Are removably accommodated in the battery space 64 of the space 31 defined by. The engine 65 is started by the battery 65, and the battery 65 is charged by a generator (not shown) driven by the engine 32.
[0039]
On the upper side of the battery 65, a pair of substantially columnar terminals 66 protruding vertically upward to the vicinity of the lower surface of the frame 13 are provided spaced apart in the width direction of the battery 65. The base end of a cable (not shown) as an electric wire whose front end is electrically connected to the electrical unit is electrically connected to the terminal 66.
[0040]
Further, as shown in FIG. 2, the battery 65 is placed with its front side surface located substantially flush with the front end of the front support 61, and the upper side of the battery 65 is It is located substantially flush with the upper side.
[0041]
Further, the tank mounting bracket 51 has a rib plate on the upper surface of the support portion 53 corresponding to the position of the rear side surface which is the lower side portion of the battery 65 and the position of the front side support portion 61 in the width direction of the body 4. A pair of abutting portions 71 are welded and provided integrally. These contact portions 71 are bent in an L-shape substantially perpendicularly to the support portion 53 from the respective welded portions 72 welded to the upper surface of the support portion 53 while being separated from each other in the width direction of the battery 65. .
[0042]
The upper ends of the contact portions 71 are provided to extend to a position substantially flush with the upper end of the mounting base end 52 of the tank mounting bracket 51. Further, when the battery 65 is placed on the tank mounting bracket 51, the contact portions 71 abut against the rear side surface of the battery 65 to support the rear side surface of the battery 65.
[0043]
On the upper front side of the battery 65, an upper support bracket 73 as an upper support member is attached to the support portion 53 of the tank mounting bracket 51 by a pair of bolts 74 which are wires as fixing members.
[0044]
Here, the upper support bracket 73 is connected to the front side of the upper side of the battery 65 from the upper side front side as the side of the battery 65 opposite to the upper side of the battery 65 with respect to the contact portion 71 of the tank mounting bracket 51. It is bent in an L-shape over the upper side.
[0045]
The upper support bracket 73 has a longitudinal direction in the width direction of the battery 65 and is formed to have a longitudinal dimension larger than the width of the battery 65. That is, as shown in FIGS. 1 and 3, the upper support bracket 73 projects from the battery 65 in the width direction of the battery 65 in a state where the upper support bracket 73 is attached to the upper side of the battery 65.
[0046]
Further, the upper support bracket 73 is formed by cutting out a position corresponding to the pair of terminals 66 of the battery 65 in an arc shape.
[0047]
As shown in FIG. 2, the pair of bolts 74 are respectively inserted into through holes (not shown) provided at both ends in the longitudinal direction of the bent portion of the upper support bracket 73. It extends substantially diagonally from the upper side to the lower side toward the contact portion 71. That is, the pair of bolts 74 are provided on the sides of the battery 65 so as to incline downward toward the rear of the body 4 from the upper front corner of the battery 65 to the vicinity of the lower rear corner thereof in a side view. ing.
[0048]
Further, as shown in FIGS. 1 and 2, the lower side, which is one end side of each bolt 74, is adjacent to the contact portion 71 of the support portion 53 of the tank mounting bracket 51. Folded portions 76 are provided which are respectively inserted into the elongated mounting holes 75 provided on the front side, and are bent at an acute angle toward the front side of the body 4 below the mounting holes 75. The upper end, which is the other end of the bolt 74, is detachably attached to the upper support bracket 73 by a nut 77, as shown in FIGS.
[0049]
As a result, the upper support bracket 73 is fixed to the support portion 53 of the tank mounting bracket 51 by the bolt 74 and is in contact with the upper portion and the front portion of the battery 65. The contact portion of the upper support bracket 73 and the tank mounting bracket 51 71 supports the battery 65 by sandwiching it in the up-down direction and the front-back direction.
[0050]
Further, on the front side surface of the hydraulic oil tank 41, plate-like connection ribs 81 as connection members are welded at two places as shown in FIG. Has a plate-shaped rear bracket 82 attached thereto via bolts or the like (not shown).
[0051]
The rear bracket 82 is disposed so as to face the entire rear surface of the battery 65, and an end of the engine 32 on the engine 32 side is bent forward in an L-shape along the side surface of the battery 65 on the engine 32 side. I have.
[0052]
A pair of through holes 83 is provided on the side of the battery 65 in the edge frame 16, and a plate-shaped side cover bracket (not shown) is removably attached to these through holes 83 by bolts. The entire side surface of the battery 65 is covered.
[0053]
Further, as shown in FIGS. 1 to 3, a covering bracket 84 as a covering member is detachably attached to an upper end portion of the front opening 63 with a bolt 85 as a fixing member. The covering bracket 84 has a longitudinal dimension larger than the width dimension of the front opening 63, and is formed in a substantially L-shape in a side view. The covering bracket 84 covers the entire upper part which is a part of the front opening 63 from the upper end of the front opening 63 to the front side.
[0054]
Further, the bolt 85 is inserted into through holes (not shown) provided at both longitudinal ends of the front lower portion of the covering bracket 84, and is fastened to the legs 14 forming the edge of the front opening 63, so that the covering bracket 84 is tightened. 84 is removably fixed above the front opening 63.
[0055]
Further, a flat back plate portion 91 is vertically projected downward and welded to the lower rear portion on the back side of the covering bracket 84. The back plate 91 has a size slightly smaller than the width of the front opening 63, and the lower end is located slightly above the upper end surface of the upper support bracket 73. Therefore, the terminal 66 of the battery 65 is covered so as to be locked by the back plate 91, and only the front side surface of the battery 65 is exposed forward from a part of the front opening 63 not covered by the covering bracket 84. ing.
[0056]
As shown in FIG. 1 and FIG. 3, a semicircular cutout 92 having a convex direction directed upward is formed in a central region in the longitudinal direction at the lower end of the back plate 91. . The cutout portion 92 is formed to be cut out slightly above the lower end portion of the covering bracket 84 in a front view.
[0057]
As shown in FIGS. 2 and 3, a rib plate-shaped engaging rib 93 is provided on the rear side of the covering bracket 84 and above the notch portion 92 of the back plate portion 91. The engagement rib 93 has a width smaller than the notch width of the notch 92 of the back plate 91.
[0058]
Further, as shown in FIG. 2, the engagement rib 93 has a welded portion 94 welded to the covering bracket 84, and a front end of the welded portion 94 is provided with a cutout portion 92 of the back plate portion 91. Immediately above, a protruding portion 95 which is bent rearwardly in a substantially L-shape from the weld portion 94 and protrudes horizontally is integrally formed.
[0059]
Further, an engaging portion 96 that is bent in a substantially L-shape vertically downward is integrally provided at a rear portion on the distal end side of the protruding portion 95. Therefore, the engagement rib 93 is formed in a crank shape protruding rearward in a side view. The engaging portion 96 is located slightly below the upper end of the cutout portion 92 of the back plate portion 91 in a front view, and projects below the covering bracket 84.
[0060]
As shown in FIGS. 1 to 3, a cover member as an opening / closing member, that is, a rectangular flat battery cover 101 serving as an access cover is spaced apart from the front opening 63 in the width direction of the battery cover 101. The battery cover 101 is attached to be openable and closable by a pair of hinge bodies 102 attached to a lower end portion.
[0061]
As shown in FIG. 3, the battery cover 101 has a width dimension substantially equal to the longitudinal dimension of the covering bracket 84, and a height dimension from the lower end of the covering bracket 84 to the lower end of the front opening 63. It is formed larger than the size. Therefore, in the closed state, the upper end of the battery cover 101, that is, the end opposite to the hinge body 102 abuts against the back plate 91 of the covering bracket 84, and closes the entire front opening 63 with the covering bracket 84. At the same time, the front side surface of the battery cover 101 is exposed from a part of the front opening 63 with the battery cover 101 opened.
[0062]
Further, as shown in FIGS. 1 to 3, the operation unit 103 serving as an engagement operation unit is rotated in parallel with the surface direction of the battery cover 101 in the center region in the width direction at the upper end of the battery cover 101. Mounted as possible.
[0063]
The operation unit 103 includes a circular base end portion 104 on a front side surface which is an outer side surface of the battery cover 101. The base end portion 104 has a width dimension in a direction perpendicular to the surface direction of the battery cover 101. A substantially rectangular operation knob 105 formed so as to be smaller is provided integrally.
[0064]
A side opposite to the base end 104 of the operation knob 105, that is, a rear end is inserted through a through hole (not shown) provided in the battery cover 101, and a hexagon nut 106 is provided on a rear surface of the battery cover 101. It is locked. Further, at the rear end of the operation knob 105, a plate-shaped engagement projection 107 protruding in the radial direction of the operation knob 105 is provided.
[0065]
Therefore, when the operation knob 105 of the operation unit 103 is movably operated, that is, is turned in a state where the battery cover 101 is closed, the engagement protrusion 107 at the rear end of the operation knob 105 is turned together with the operation knob 105, and When the battery cover 101 is engaged with the engaging portion 96 of the mating rib 93, the battery cover 101 is locked to the back plate portion 91 of the covering bracket 84, and the battery cover 101 closes the front opening 63.
[0066]
Further, as shown in FIG. 2, a substantially rectangular notch side portion 111 is formed in the upper portion of the battery cover 101 on the side of the edge frame 16 by notching up to the upper end portion of the battery cover 101. The notch side portion 111 prevents the bolt 112 attached to the edge frame 16 from the battery cover 101 side from interfering with the battery cover 101 when opening and closing.
The seat frame 12, the front opening 63, the covering bracket 84, the bolt 85, the battery cover 101, and the like constitute a battery device 113 as a battery device.
[0067]
Next, the operation and effect of the embodiment shown in FIGS. 1 to 5 will be described.
[0068]
A battery 65 is detachably disposed inside the front opening 63 of the seat frame 12, and a cover bracket 84 that covers the terminal 66 of the battery 65 so as to be able to lock and close the upper end of the front opening 63. A battery cover 101 which is detachably provided in the front opening 63 with bolts 85 and is closed by the covering bracket 84 to close the front opening 63 in a closed state is provided on the front opening 63 by a hinge body 102 so as to be freely opened and closed. As a result, by opening and closing the battery cover 101, the liquid level of the battery 65 can be easily inspected on a daily basis from a part of the front opening 63, and if the bolt 85 is not removed and the covering bracket 84 is not removed, the entire front opening 63 is completely removed. Since the battery 65 is not opened, it is possible to prevent the battery 65 from being easily removed and prevent the battery 65 from being stolen.
[0069]
By rotating the operation knob 105 of the operation unit 103 with the battery cover 101 closed, the engagement protrusion 107 of the operation unit 103 is engaged with the engagement portion 96 of the engagement rib 93 of the covering bracket 84. The battery cover 101 is locked to the covering bracket 84 only by being operated, so that the battery cover 101 can be easily opened and closed.
[0070]
Furthermore, since the terminal 66 of the battery 65 is covered with the back plate portion 91 provided on the covering bracket 84, an operator or the like cannot touch the terminal 66 of the battery 65 only by opening the battery cover 101. Since a tool is required to remove 84, it is possible to prevent an operator or the like from accidentally touching terminal 66 of battery 65, and to open / close battery cover 101, for example, to connect to terminal 66 of battery 65. The cables and the like can be covered to prevent the cables from being damaged.
[0071]
By attaching the lower end of the battery cover 101 to the lower end of the front opening 63 by the hinge body 102, the operating portion 103 is operated to allow the engaging protrusion 107 to engage with the engaging portion 96 of the engaging rib 93. Since the battery cover 101 is opened by its own weight only by releasing the engagement, the battery cover 101 can be easily opened and closed.
[0072]
In the above-described embodiment, if the entire front opening 63 can be covered by closing a part of the front opening 63 with the covering bracket 84 and locking the battery cover 101 to the covering bracket 84, the covering bracket 84 and the covering bracket 84 can be used. The positional relationship of the battery cover 101 is not limited to the vertical direction.
[0073]
In addition, if the operation unit 103 can lock the battery cover 101 to the covering bracket 84 only by a movable operation, such as a device that slides on the battery cover 101, that is, a device that locks by sliding, for example, However, other operation methods may be used.
[0074]
【The invention's effect】
According to the first aspect of the present invention, a cover member that covers a part of the battery detachably disposed inside the opening of the frame so as to be latchable and closes a part of the opening of the frame. The opening / closing member is detachably provided at the opening of the frame by a fixing member, and the opening / closing member which is locked to the covering member in the closed state and closes the opening of the frame is provided at the opening of the frame so as to be freely opened and closed. The battery can be easily inspected daily from a part of the opening, and the entire opening cannot be opened unless the fixing member is removed and the covering member is removed, so that the battery can be prevented from being easily removed.
[0075]
According to the second aspect of the present invention, since the opening / closing member is locked to the covering member by the movable operation of the engagement operation portion in a state where the opening / closing member is closed, the opening / closing member can be easily opened / closed.
[0076]
According to the third aspect of the present invention, since the battery terminal is covered with the back plate portion provided on the covering member, the battery terminal cannot be touched only by opening the opening / closing member. In addition, it is possible to prevent a person or the like from accidentally touching the battery and, for example, to confine an electric wire or the like connected to the terminal of the battery inside the back plate portion.
[0077]
According to the invention described in claim 4, by providing the battery device according to any one of claims 1 to 3 on the machine main body, the battery can be easily inspected daily, and the battery can be easily removed. Usability can be improved, for example, it is possible to reduce the possibility of theft.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a battery device according to an embodiment of a working machine according to the present invention.
FIG. 2 is a side view showing a battery device of the work machine.
FIG. 3 is a front view showing a battery device of the work machine.
FIG. 4 is a perspective view showing a part of the work machine;
FIG. 5 is a side view showing the working machine.
[Explanation of symbols]
1 Hydraulic excavator as a working machine
5 Machine body
6. Front work equipment as work equipment
12 Seat frame as frame
63 Front opening as opening
65 Battery as Battery
66 terminals
84 Covering bracket as covering member
85 Bolt as fixing member
91 Back plate
101 Battery cover as opening / closing member
103 Operation unit as engagement operation unit
113 Battery device as battery device

Claims (4)

A frame with an opening,
A battery that is detachably disposed inside the opening of the frame and supplies power to the electrical unit,
A covering member that is detachably provided in the opening of the frame by a fixing member, covers a part of the battery so as to be able to be locked, and closes a part of the opening of the frame;
A battery device comprising: an opening / closing member that is openably and closably provided in an opening of a frame, and is locked by a covering member in a closed state to close the opening of the frame. The opening / closing member includes an engagement operating portion that at least partially engages with the covering member by a movable operation of the opening / closing member in a closed state to lock the opening / closing member to the covering member. Battery device. The battery device according to claim 1, wherein the covering member includes a back plate portion that covers terminals of the battery. A machine body comprising the battery device according to any one of claims 1 to 3,
A working device operably provided on the machine body.

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