Battery stand and work machine provided with same

Abstract

The present invention fixes a battery easily and firmly.　A battery stand (50) is provided with: a placement table (54); a restricting member (55) that is disposed on the rear surface side of a battery (BT) and restricts the backward movement of the battery (BT); and a fixing member (53) that is disposed over the front surface of the battery (BT) from above or the upper part of the restricting member (55) and fixes the battery (BT). The fixing member (53) has: a first fixing tool (53a) disposed on the upper surface side of the battery (BT); a second fixing tool (53b) disposed on the front surface side of the battery (BT); and a connecting section (90) for connecting the first fixing tool (53a) and the second fixing tool (53b). The connecting section (90) is provided with: an inclined section (63) provided on one of the first fixing tool (53a) and the second fixing tool (53b) and inclined in a direction approaching the rear surface side of the battery (BT) as the section goes upward; and a holding member (52) for holding the other connecting position of the first fixing tool (53a) and the second fixing tool (53b) with respect to the inclined section (63) so as to be adjustable.

Description

Battery stand and work machine equipped with same

[0001] The present invention relates to a battery stand for fixing a battery to a work machine, and to a work machine equipped with the battery stand.

[0002] The battery stand disclosed in Patent Document 1 has a mounting wall on which a first battery and a second battery having different mounting types can be selectively mounted, and a restricting member provided on the mounting wall that restricts movement of the first battery and the second battery toward the front side, and the restricting member has a restricting portion that engages with a first engaging protrusion provided on the lower front side of the second battery to restrict upward movement of the second battery.

[0003] Japanese Patent Publication No. 2020-4668

[0004] The battery stand of Patent Document 1 can mount batteries of different mounting types.

[0005] However, in the battery stand of Patent Document 1, the battery is fixed to the battery stand using a pair of rod members (a first rod member and a second rod member) and a mounting stay, so when attaching or detaching the battery to or from the battery stand, it is necessary to attach and detach the pair of rod members.

[0006] The present invention has been made in view of the above problems, and has an object to provide a battery stand that can securely and easily fix a battery, and a work machine equipped with the battery stand.

[0007] The technical means adopted by the present invention to solve the above problems are characterized by the following points.

[0008] A battery stand according to one embodiment of the present invention comprises a mounting base for placing a battery, a restricting member arranged on the rear side of the battery and restricting rearward movement of the battery, and a fixing member arranged from above or on top of the restricting member to the front side of the battery and fixing the battery, wherein the fixing member has a first fixing device arranged on the top side of the battery, a second fixing device arranged on the front side of the battery, and a connecting portion connecting the first fixing device and the second fixing device, and the connecting portion comprises an inclined portion provided on one of the first fixing device and the second fixing device and inclined in a direction approaching the rear side of the battery as it extends upward, and a holding member that adjustably holds the connecting position of the other of the first fixing device and the second fixing device relative to the inclined portion.

[0009] The first fixing device may have one end connected to the upper or top of the regulating member and the other end positioned above the front of the battery, and the second fixing device may have the inclined portion of the connecting part formed at one end and the other end connected to the mounting base.

[0010] The second fixing member may be bent at a midpoint, and the portion from the midpoint to the one end may form the inclined portion that extends in the inclined direction.

[0011] The regulating member may extend from the mounting base above the battery, and one end of the first fixing device may be connected to the upper part of the regulating member so as to be swingable in the vertical direction, and the other end of the second fixing device may be connected to the mounting base so as to be swingable in the front-to-back direction of the battery.

[0012] The holding member may change a connection position of the other of the first fastener and the second fastener relative to the inclined portion by moving along the inclined portion.

[0013] The other of the first fixing device and the second fixing device may have an inclined surface that is inclined in a direction intersecting the inclination direction, and the holding member may hold the connection position of the other of the first fixing device and the second fixing device relative to the inclined portion by abutting against the inclined surface.

[0014] The inclined portion may have a screw groove formed therein, and the holding member may be a fastening member that screws into the screw groove.

[0015] The fixing member may be located on the inner side in the width direction of the battery placed on the mounting table.

[0016] The fixing member may be provided on an inner side in a width direction of the battery placed on the mounting table.

[0017] The battery may include clamp members arranged between the top surface of the battery and the first fixing device, and between the front surface of the battery and the second fixing device, and the clamp members may press the top surface of the battery downward using the first fixing device and press the front surface backward using the second fixing device.

[0018] The battery may further include a force transmission member disposed between the fixing member and the battery, for transmitting a pressing force from the fixing member to the battery.

[0019] The fixing member may directly or indirectly abut against an upper front corner of the battery, and apply rearward and downward pressing forces to the battery.

[0020] A work machine according to one aspect of the present invention includes the above-described battery stand.

[0021] According to the battery stand and the work machine equipped with the battery stand of the present invention, the battery can be fixed simply and firmly.

[0022] 1 is a perspective view of a work machine equipped with a battery stand of the present invention; FIG. 2 is a side view of a work machine equipped with a battery stand of the present invention; FIG. 3 is a plan view showing the arrangement of batteries relative to the machine body; FIG. 4 is a perspective view of the battery stand of the first embodiment as seen from diagonally above right; FIG. 5 is a cross-sectional view of the battery stand of the first embodiment cut at the center in the left-right direction; FIG. 6 is a view showing the operation of attaching and detaching a battery to the battery stand of the first embodiment; FIG. 7 is a view showing a fixing member in a state where the fastening members are loosened; FIG. 8 is a view showing the relationship between the pressing force applied from the fixing member in a state where the fastening members are tightened and the friction surface; FIG. 9 is a side view showing the relationship between a holding member, a pressing member, and a bracket in a second embodiment; FIG. 10 is a side view showing an embodiment in which the fixing member indirectly abuts against the front upper part of the battery; and FIG. 11 is a side view showing an embodiment in which the fixing member directly abuts against the front upper part of the battery.

[0023] First Embodiment A first embodiment of a battery stand 50 according to the present invention will be described below.

[0024] Fig. 1 is a perspective view showing a work machine 1 equipped with a battery stand 50 of the first embodiment. Fig. 2 is a side view of the work machine 1.

[0025] In the first embodiment, the battery stand 50 secures the battery BT to a work machine 1 equipped with a work implement 4, such as a construction machine or agricultural machine. The battery stand 50 of the present invention may also secure the battery BT to a vehicle other than the work machine 1, such as a traveling vehicle such as a tractor or cultivator. In the first embodiment, a backhoe, which is a swivel work machine, is exemplified as the work machine 1.

[0026] The work machine 1 of the first embodiment includes a machine body (swivel base) 2, a traveling device 3, and a work device 4. The machine body 2 is provided with a driver's seat 6. An operator (driver) can sit in the driver's seat 6. The driver's seat 6 is disposed to the left and front of the machine body 2.

[0027] The battery stand 50 of the first embodiment secures the battery BT with its front surface (one of the two long sides of the top surface of the four sides surrounding the battery BT; in this embodiment, the side closest to the terminal 49 is referred to as the "front surface" of the battery BT) facing the front of the work machine 1. However, the direction in which the battery BT is secured in the battery stand 50 of the present invention is not limited to the direction shown in the first embodiment (the direction in which the front surface of the battery BT faces the front of the work machine 1). For example, the battery stand 50 of the present invention may secure the battery BT with its front surface facing the rear, left, right, front left, etc. of the work machine 1.

[0028] In the following description, the battery stand 50 and the work machine 1 will be described based on the direction in which the front of the battery BT faces forward of the work machine 1.

[0029] That is, directions such as front, rear, left, and right when describing the battery stand 50 and the work machine 1 are defined as follows.

[0030] In a state (posture) in which the working device 4 (work implement such as a bucket) is facing the forward direction of the traveling device 3, the direction facing forward of the operator seated in the driver's seat 6 of the working machine 1 (the direction of arrow A1 in FIG. 2) is defined as the forward direction. The direction facing backward of the operator (the direction of arrow A2 in FIG. 2) is defined as the rearward direction. The direction of arrow K1 in FIG. 2 is defined as the front-to-rear direction. Furthermore, the direction facing left of the operator seated in the driver's seat 6 (the front side in FIG. 2) is defined as the left. The direction facing right of the operator (the back side in FIG. 2) is defined as the right.

[0031] As shown in Figure 3, the horizontal direction perpendicular to the longitudinal direction K1 is defined as the fuselage width direction K2. The direction from the center of the fuselage 2 in the width direction to the right or left is defined as the fuselage outboard direction. In other words, the fuselage outboard direction is a direction parallel to the fuselage width direction and away from the fuselage 2's center in the width direction. The direction opposite to the fuselage outboard direction is defined as the fuselage inboard direction. In other words, the fuselage inboard direction is a direction parallel to the fuselage width direction and approaching the fuselage 2's center in the width direction.

[0032] 1 and 2, the traveling device 3 has a traveling frame 9 and traveling mechanisms 10 provided on the left and right sides of the traveling frame 9. In this embodiment, the traveling mechanism 10 is a crawler-type traveling mechanism driven by a hydraulic motor. A dozer device 7 that can be raised and lowered by a hydraulic cylinder is attached to the front of the traveling device 3.

[0033] As shown in Figures 1 and 2, the work device 4 is provided at the front of the machine body 2 and has a boom 15, an arm 16, and a bucket (work tool) 17. The base of the boom 15 is pivotally attached to a swing bracket 14 so as to be rotatable (swingable up and down) about a horizontal axis (an axis extending in the machine body width direction K2). The swing bracket 14 is supported by a support bracket 18 provided at the front of the machine body 2 so as to be rotatable about a vertical axis (an axis extending in the up-down direction). The arm 16 is pivotally attached to the tip of the boom 15 so as to be rotatable (swingable back and forth or up and down) about the horizontal axis. The bucket 17 is provided at the tip of the arm 16 so as to be capable of scooping and dumping operations.

[0034] The work implement 1 can be equipped with other working tools (hydraulic attachments) that can be driven by a hydraulic actuator instead of or in addition to the bucket 17. Examples of such working tools include hydraulic breakers, hydraulic crushers, angle brooms, earth augers, pallet forks, sweepers, mowers, and snow blowers.

[0035] The swing bracket 14 swings by extension and retraction of a hydraulic cylinder. The boom 15 swings by extension and retraction of a boom cylinder C3. The arm 16 swings by extension and retraction of an arm cylinder C4. The bucket 17 performs scooping and dumping operations by extension and retraction of a bucket cylinder (work tool cylinder) C5. The boom cylinder C3, arm cylinder C4, and bucket cylinder C5 are configured as hydraulic cylinders (hydraulic actuators).

[0036] As shown in FIGS. 1 and 2, the machine body 2 is supported on a traveling frame 9 (traveling device 3) via a swivel bearing 8 so as to be rotatable about a vertical axis (to the left and right).

[0037] 3, the machine body 2 has a swivel frame 41 that serves as the framework. The swivel frame 41 is configured by fixing reinforcing ribs 43, support brackets 18, and brackets and stays for mounting equipment (including tanks) and other components mounted on the machine body 2 to a swivel base plate 42 that forms the bottom of the machine body 2.

[0038] As shown in FIGS. 1 and 2 , the aircraft body 2 is equipped with a driver's section 23 including a driver's seat 6 .

[0039] The driving unit 23 is disposed toward one side (left side) from the center of the machine body 2. As shown in Figure 2, a floor step 19 that forms the floor surface of the machine body 2 (the floor surface of the upper part of the machine body) is provided at the front of the machine body 2. The left side of the front part of the revolving frame 41 is covered by this floor step 19. The driving unit 23 is mounted behind the floor step 19.

[0040] 2 and 3, a hood 22 is provided behind the driver's section 23. A motor chamber E2 that houses a motor E1 is formed inside the hood 22. The motor E1 is, for example, a diesel engine, and drives a hydraulic pump P1 that discharges hydraulic oil (pressurized oil) to drive hydraulic actuators such as hydraulic motors and hydraulic cylinders that are equipped in the work machine 1. In this embodiment, the hydraulic pump P1 is mounted inside the hood 22 below the motor E1.

[0041] The prime mover E1 may be a gasoline engine or an electric motor, or may be a hybrid type having an engine and an electric motor.

[0042] The hood 22 covers the periphery of the prime mover E1. A support frame that supports the hood 22 with respect to the machine body 2 (the rotating frame 41) is provided within the hood 22. A driver's seat 6 is disposed in front of the hood 22.

[0043] 3, a fuel tank 45 is disposed approximately in the center in the front-rear direction K1 on the right side of the swivel base plate 42 (swivel frame 41). A battery BT is disposed in front of the fuel tank 45.

[0044] As shown in A of FIG. 1 , battery BT is a storage battery provided in work machine 1 and supplies power to electronic devices such as meters and a control device that performs various controls related to work machine 1. In this embodiment, battery BT is a lead secondary battery with an anode on the front left and a cathode on the front right. Note that battery BT of the present invention may also be a lithium-ion battery, a solid-state battery, or the like. A wiring cable is connected to terminal 49 of battery BT. Battery BT supplies power to the above-mentioned electronic devices via the wiring cable.

[0045] As shown in FIG. 4, the battery BT is attached to the revolving frame 41 of the machine body 2 using a battery stand 50.

[0046] The battery stand 50 secures the battery BT to the revolving frame 41 (machine body 2). Specifically, the battery stand 50 includes a mounting base 54 on which the battery BT is placed, a restricting member 55 disposed on the rear side of the battery BT to restrict rearward movement of the battery BT, and a fixing member 53 disposed above or from the top of the restricting member 55 to the front of the battery BT and to fix the battery BT.

[0047] 4 and 5, the mounting base 54 is a plate member on which the battery BT can be placed, and is formed to be wider in the left-right and front-rear directions than the battery BT. In this embodiment, the rear end of the mounting base 54 is connected to the middle of the restricting member 55 in the up-down direction, and the mounting base 54 is connected integrally to the restricting member 55.

[0048] The center of the front end of the mounting base 54 protrudes further forward than the left and right portions. A second engagement hole 56b is formed in the center of the front end of the mounting base 54. The lower end of a second fastener 53b (described later) is engaged with the second engagement hole 56b.

[0049] A first stopper 57a and a second stopper 57b are formed on the top surface of the mounting base 54. The first stopper 57a is formed by combining vertically erect plate members in a cross shape at the left end of the front portion of the top surface of the mounting base 54. Specifically, the first stopper 57a has a horizontal restriction piece 58a extending in the left-right direction and a vertical restriction piece 58b extending in the front-rear direction. The horizontal restriction piece 58a restricts the forward movement of the battery BT relative to the mounting base 54. The vertical restriction piece 58b restricts the leftward movement of the battery BT relative to the mounting base 54.

[0050] The second stopper 57b is formed as a vertically standing plate member on the upper surface of the mounting base 54. The second stopper 57b has a left restricting piece 57L formed on the left end of the mounting base 54 and a right restricting piece 57R formed on the right end of the mounting base 54. The left restricting piece 57L restricts the battery BT from moving leftward relative to the mounting base 54. The right restricting piece 57R restricts the battery BT from moving rightward relative to the mounting base 54.

[0051] Anti-slip mats 59 are provided on the top surface of the mounting base 54 to increase the friction between the top surface and the bottom surface of the battery BT. In this embodiment, the anti-slip mats 59 are provided on the left and right sides of the bottom surface of the battery BT. Note that a mat similar to the anti-slip mat 59 may also be provided on the back surface (rear surface) of the battery BT.

[0052] 4 and 5, the restricting member 55 is disposed behind the mounting base 54 and is formed in the shape of a plate that stands upright in the vertical direction. The restricting member 55 restricts rearward movement of the battery BT. In the first embodiment, the upper end of the restricting member 55 is located higher than the upper surface of the battery BT. One end (rear end) of the fixing member 53 is connected to the restricting member 55 at a position higher than the upper surface of the battery BT.

[0053] The battery stand 50 of the present invention also includes a configuration in which the upper end of the regulating member 55 is located below the upper surface of the battery BT. In addition, one end (rear end) of the fixing member 53 only needs to be connected above or to the top of the regulating member 55, and does not need to be directly connected to the regulating member 55.

[0054] For example, a restricting member 55 lower than the height of the battery BT may be provided on the upper surface of the mounting base 54. A support member different from the restricting member 55 may be provided above the restricting member 55 at a position even higher than the height of the battery BT, and one end (rear end) of the fixing member 53 may be connected to this support member.

[0055] In the first embodiment, a connecting member 60 is provided above the upper surface of the battery BT on the restricting member 55, connecting one end (rear end) of the fixing member 53. The connecting member 60 is formed in a plate shape that protrudes forward beyond the front surface of the restricting member 55. In this embodiment, the connecting member 60 has a left connecting member 60L formed to the left of the restricting member 55 (battery BT) and a right connecting member 60R formed to the right of the restricting member 55 (battery BT).

[0056] A first engagement hole 56a is formed in the center of the left connecting member 60L and the center of the right connecting member 60R, and engages with one end (rear end) of the fixing member 53. The first engagement hole 56a is formed to penetrate the center of the left connecting member 60L and the center of the right connecting member 60R in the up-down direction.

[0057] 4, the fixing member 53 is located on the inner side in the width direction of the battery BT placed on the mounting base 54, and more specifically, one fixing member 53 is provided on the inner side in the width direction. In the first embodiment, the fixing member 53 is provided in the center of the battery BT placed on the mounting base 54 in the width direction.

[0058] 5 and 6 , the fixing member 53 includes a first fixing member 53a disposed on the upper surface of the battery BT, a second fixing member 53b disposed on the front surface of the battery BT, and a connecting portion 90 connecting the first fixing member 53a and the second fixing member 53b. The fixing member 53 is configured to fix the battery BT by connecting the other end (front end) of the first fixing member 53a to one end (top end) of the second fixing member 53b via the connecting portion 90. In the fixing member 53, either or both of the other end (front end) of the first fixing member 53a and one end (top end) of the second fixing member 53b are inclined with respect to both the horizontal and vertical directions.

[0059] The first fixing member 53a and the second fixing member 53b in the first embodiment are formed of a hard material that does not undergo elastic deformation, such as metal, etc. However, the first fixing member 53a and the second fixing member 53b may be an elastic material that undergoes elastic deformation, but are not limited to this.

[0060] In the first embodiment, one end (rear end) of the first fastener 53a is connected to the upper or top portion of the restricting member 55 (a position above the top surface of the battery BT). One end (rear end) of the first fastener 53a is connected to the upper or top portion of the restricting member 55 at two locations spaced apart in the left-right direction. The other end (front end) of the first fastener 53a is disposed above the front of the battery BT. The other end (front end) of the first fastener 53a is connected to one end (upper end) of the second fastener 53b at one location in the center in the left-right direction via a connecting portion 90.

[0061] One end (rear end) of the first fastener 53a is connected to the upper portion of the restricting member 55 so that the other end (front end) can swing freely in the up-and-down direction (toward and away from the battery BT). Specifically, the first fastener 53a in this embodiment has a left rear portion 53RL connected to the left connecting member 60L, a right rear portion 53RR connected to the right connecting member 60R, a front portion 53F connected to the second fastener 53b, and an intermediate portion 53M that connects the left rear portion 53RL, the rear end of the front portion 53F, and the right rear portion 53RR in the left-right direction. The left rear portion 53RL and the right rear portion 53RR are formed in a rod shape extending in the front-to-rear direction. The rear ends of the left rear portion 53RL and the right rear portion 53RR are both formed in a hook shape that curves downward (approximately J-shaped when viewed from the side), and are engaged with the first engagement holes 56a of the left connecting member 60L and the right connecting member 60R.

[0062] The first engagement holes 56a of the left connecting member 60L and the right connecting member 60R have opening diameters larger than the outer diameters of the left rear portion 53RL and the right rear portion 53RR of the first fastener 53a. Therefore, the left rear portion 53RL can pivot up and down relative to the first engagement hole 56a of the left connecting member 60L. The right rear portion 53RR can pivot up and down relative to the first engagement hole 56a of the right connecting member 60R.

[0063] The intermediate portion 53M of the first fastener 53a connects the front end of the left rear portion 53RL and the front end of the right rear portion 53RR in the left-right direction. The intermediate portion 53M is formed of a rod material with a substantially L-shaped cross section when viewed from the side. The front ends of the left rear portion 53RL and the right rear portion 53RR are joined to both left and right ends of the intermediate portion 53M so as to intersect from above. The rear end of the front portion 53F of the first fastener 53a is joined to the middle of the intermediate portion 53M in the left-right direction so as to intersect from below.

[0064] The front ends of the left rear portion 53RL and the right rear portion 53RR are joined to the intermediate portion 53M from above, and the rear end of the front portion 53F is joined to the intermediate portion 53M from below. In other words, when viewed from the left rear portion 53RL and the right rear portion 53RR, the front portion 53F is located lower by the thickness of the intermediate portion 53M. By using the first fixing device 53a that is thick in the vertical direction at its front and rear ends, it is possible to easily press the front end of the first fixing device 53a and components such as the pressing member 67 provided at the front end against the upper surface of the battery BT.

[0065] The rear end of the front portion 53F of the first fastener 53a is connected to the center of the middle portion 53M in the left-right direction. The front portion 53F is formed in a rod shape extending in the front-rear direction, similar to the rear portion 53R. A pressing member 67 (the upper end portion of the second fastener 53b) is provided at the front end of the front portion 53F.

[0066] As shown in FIG. 5 , a cover 79 that covers the battery BT is provided on top of the first fixture 53a. The cover 79 is made of an electrically non-conductive resin or the like. The cover 79 is formed to be wider in the left-right and front-rear directions than the top surface of the battery BT. In other words, the cover 79 has a larger area than the top surface of the battery BT and can cover the entire top surface of the battery BT. Covering the entire top surface of the battery BT with the cover 79 can further improve the insulation of the terminals 49 and reduce the risk of electric leakage and electric shock.

[0067] The second fixing device 53b is disposed on the front side of the battery BT. One end (upper end) of the second fixing device 53b is connected to the other end (front end) of the first fixing device 53a, and the other end (lower end) extends toward the front side of the battery BT and is connected to the mounting base 54. The second fixing device 53b is a rod-shaped member that extends upward in front of the battery BT and is bent midway in the vertical direction (bent portion 53c). That is, the second fixing device 53b of this embodiment bends at approximately the same vertical position as the upper surface of the battery BT, and the bent portion 53c of the second fixing device 53b of this embodiment is located at approximately the same vertical position as the upper surface of the battery BT. The second fixing device 53b of this embodiment has a straight portion 62 that extends linearly in the vertical direction below the bent portion 53c. The portion below the bent portion 53c of the second fixing device 53b constitutes the other end (lower end) of the second fixing device 53b. In addition, the second fixing member 53b of this embodiment has an inclined portion 63 extending from the middle portion (bend portion 53c) to one end portion (above bend portion 53c) in a direction inclined rearward relative to the straight portion 62. The upper portion (inclined portion 63) of bend portion 53c in the second fixing member 53b constitutes one end portion (upper end portion) of the second fixing member 53b.

[0068] The other end (lower end) of the second fixing member 53b is connected to the mounting base 54 so that one end (upper end) can swing freely in the front-to-rear direction. Specifically, the lower end of the straight portion 62 is formed into a hook shape that curves forward, similar to the rear ends of the left rear portion 53RL and the right rear portion 53RR described above. The lower end of the straight portion 62 engages with a second engagement hole 56b formed in the mounting base 54. The second engagement hole 56b in the mounting base 54 has an opening diameter larger than the outer diameter of the straight portion 62. Therefore, one end (upper end) of the lower end of the straight portion 62 can swing in the front-to-rear direction of the battery BT (toward and away from the battery BT) relative to the mounting base 54.

[0069] A retaining member 64 is provided at the bottom of the straight portion 62 for the second engagement hole 56b. The retaining member 64 is formed to be larger in size than the opening diameter of the second engagement hole 56b. By providing such a retaining member 64, the straight portion 62 (second fixing device 53b), which is positioned above the retaining member 64, is prevented from falling below the mounting table 54 through the second engagement hole 56b.

[0070] The inclined portion 63 is inclined in a direction that approaches the rear side of the battery BT as it extends upward. When the straight portion 62 is oriented in the vertical direction, the inclined portion 63 is inclined rearward at an angle of approximately 45 degrees, with the upper side as the reference (0 degrees). Note that, although the inclination angle of the inclined portion 63 is approximately 45 degrees in the present embodiment, the inclination angle of the inclined portion 63 may be approximately 30 degrees or approximately 60 degrees, and is not limited to approximately 45 degrees. Furthermore, in the above-described embodiment, the inclined portion 63 is inclined forward by bending the bent portion 53c. However, it is sufficient that the inclined portion 63 is at least inclined, and the intermediate portion (the bent portion 53c in the present embodiment) may be formed by bending a rod-shaped member constituting the second fixing device 53b rearward.

[0071] For example, if a heavy battery BT is used, a large weight will be applied downward to the mounting base 54, and the frictional force generated between the bottom surface of the battery BT and the mounting base 54 will also be large. In such a case, the inclination angle of the inclined portion 63 can be set to less than approximately 45 degrees to allow a larger force to act horizontally on the regulating member 55 (reducing the force acting in the vertical direction). On the other hand, if a light battery BT is used, the inclination angle of the inclined portion 63 can be set to more than approximately 45 degrees to reduce the horizontal force acting on the regulating member 55 of the bracket 51 and increase the downward force applied to the mounting base 54. In other words, in the battery stand 50 of the present invention, the inclination angle of the inclined portion 63 can be changed as desired.

[0072] A screw groove 65 is provided at the upper end of the inclined portion 63. The screw groove 65 is formed in a spiral shape about the axis of the inclined portion 63 (the axis of the rod-shaped member that constitutes the inclined portion 63). A holding member 52 of the connecting portion 90, which will be described later, can be screwed into the screw groove 65.

[0073] In the battery stand 50 of the present invention, the connecting portion 90 changes the connecting position between the first fastener 53a and the second fastener 53b along the inclination direction of the fixing member 53. This allows the fixing member 53 to change at least one of the length from the first engagement hole 56a of the first fastener 53a to the connecting portion 90 and the length from the second engagement hole 56b of the second fastener 53b to the connecting portion 90. In other words, the fixing member 53 is configured so that the effective length of the fixing member 53 from the first engagement hole 56a along the top and front surfaces of the battery BT to the second engagement hole 56b can be changed (the length of the portion that contributes to pressing and fixing the battery BT).

[0074] Specifically, the connecting portion 90 includes an inclined portion 63 and a holding member 52 that adjustably holds the connecting position of the other of the first fastener 53a and the second fastener 53b relative to the inclined portion 63. In the first embodiment, the inclined portion 63 is formed at one end (upper end) of the second fastener 53b, and the connecting portion 90 adjusts the connecting position between the inclined portion 63 of the second fastener 53b and the other end (front end) of the first fastener 53a using the holding member 52.

[0075] As described above, in the first embodiment, the inclined portion 63 is formed at one end (upper end) of the second fixing device 53b, but the inclined portion 63 may be provided on either the first fixing device 53a or the second fixing device 53b and inclined in a direction that approaches the rear side of the battery BT as it goes upward, and may be provided on the first fixing device 53a. In such a case, the connecting portion 90 adjusts the connecting position between the inclined portion 63 of the first fixing device 53a and one end (upper end) of the second fixing device 53b using the holding member 52.

[0076] The holding member 52 will be described in detail below. The holding member 52 moves along the inclined portion 63 to change the connection position of the other of the first fastener 53a and the second fastener 53b relative to the inclined portion 63. The holding member 52 of the first embodiment is provided on the inclined portion 63 at one end (upper end) of the second fastener 53b and holds the position of the other end (front end) of the first fastener 53a relative to the inclined portion 63. In the first embodiment, a fastening member such as a nut is used as the holding member 52. That is, in the battery stand 50 of the first embodiment, the holding member 52 is a fastening member 77 such as a nut that screws into a thread groove 65 formed in the inclined portion 63. When such a fastening member 77 is used as the retaining member 52, the fastening member 77 moves the inclined portion 63 of one end (upper end) of the second fixing device 53b in the inclined direction, thereby changing the position (relative position) of the other end (front end) of the first fixing device 53a relative to one end (upper end) of the second fixing device 53b in the inclined direction, and thereby changing the connection position between the first fixing device 53a and the second fixing device 53b.

[0077] An inclined surface 74 inclined in a direction intersecting the inclination direction of the inclined portion 63 is formed on the other of the first fastener 53a and the second fastener 53b. In the first embodiment, the inclined surface 74 is formed on the other end (front end) of the first fastener 53a, and the inclined surface 74 inclined in a direction intersecting the inclined surface of the inclined portion 63 of the second fastener 53b. In other words, the inclined surface 74 is formed on the other end (front end) of the first fastener 53a. The inclined surface 74 is formed to face one end side (upper rear) of the first fastener 53a. The retaining member 52 (fastening member 77) abuts against the inclined surface 74, thereby maintaining the position of one end (upper end) of the second fastener 53b relative to the inclined surface 74.

[0078] In addition, when the inclined surface 74 is formed on the second fixing device 53b, the retaining member 52 (fastening member 77) abuts against the inclined surface 74 to maintain the position of the other end (front end) of the first fixing device 53a relative to the inclined surface 74.

[0079] Next, the holding member 52 (fastening member 77) of the connecting portion 90 and the inclined surface 74 of the first fixing tool 53a of the first embodiment will be described.

[0080] 6 , the fastening member 77 (retaining member 52) of this embodiment is of a double-nut type and is composed of two nuts that are threaded into the thread groove 65. By using the double-nut type fastening member 77, it is possible to prevent the fastening member 77 from loosening relative to the thread groove 65.

[0081] Although a double nut is used for the fastening member 77 in this embodiment, the fastening member 77 of the present invention is not limited to a double nut. For example, nuts with a locking function such as a locking nut that generates a frictional force by contacting the thread groove 65, a nut in which a cured resin is pre-applied at the point of contact with the thread groove 65, a flange nut, or a disc spring nut can be used.

[0082] The inclined surface 74 is inclined upward and forward at an angle of approximately 45 degrees, with the upper side being the reference point (0 degrees). Specifically, in the battery stand 50 of the first embodiment, a slope member 75 having the inclined surface 74 is provided at the other end (front end) of the first fixing device 53a. A pressing member 67 that presses the battery BT downward is provided between the slope member 75 and the other end (front end) of the first fixing device 53a. If the inclined surface 74 of the slope member 75 is formed to be inclined forward at 45 degrees, it intersects with the inclined portion 63 of the second fixing device 53b, which is inclined backward at 45 degrees, at approximately 90 degrees. As a result, the fastening force of the fastening member 77, which will be described later, can be applied normal to the inclined surface 74, and the fastening force of the fastening member 77 can be reliably applied to the upper surface of the battery BT via the inclined surface 74 (slope member 75), the pressing member 67, and the clamp member 69.

[0083] The pressing member 67 is disposed between the other end (front end) of the first fixing device 53a and the slope member 75. The pressing member 67 is a plate-shaped member disposed so that its plate surfaces face each other in the vertical direction, and is capable of contacting the upper surface of the battery BT in a planar state. The slope member 75 is provided on the front upper surface of the pressing member 67.

[0084] The slope member 75 is an angular member provided on the upper surface of the pressing member 67. An inclined surface 74 that slopes forward at 45 degrees is formed on the upper part of the slope member 75. A rib member 91 is provided on the lower part of the slope member 75.

[0085] An insertion hole 76 through which the inclined portion 63 of the second fastener 53b is inserted is formed in the inclined surface 74 of the slope member 75. The insertion hole 76 is formed in the inclined surface 74 as an elongated hole that is long in the front-rear direction. The insertion hole 76 is formed from the front end of the inclined surface 74 to the midpoint of the inclined surface 74 in the front-rear direction. The insertion hole 76 opens forward, allowing the inclined portion 63 of the second fastener 53b to be inserted while swinging it from the front. The opening width of the insertion hole 76 in the left-right direction is wider than the outer diameter of the second fastener 53b (inclined portion 63). By forming the opening width of the insertion hole 76 wider than the outer diameter of the second fastener 53b, the second fastener 53b can be freely inserted into the insertion hole 76.

[0086] A guide hole 78 is formed below the slope member 75 in the pressing member 67 so that the inclined portion 63 of the second fastener 53b can be inserted all the way into the insertion hole 76. The guide hole 78, like the insertion hole 76, is formed in the front part of the pressing member 67 as an elongated hole that is long in the front-to-rear direction and opens forward.

[0087] As shown in Figures 4 and 5, the slope member 75 has rib members 91 on the upper surface of the pressing member 67. The rib members 91 are formed on the left and right sides of the guide hole 78 on the upper surface of the pressing member 67. The left and right rib members 91 are both formed as triangular plate members when viewed from the left or right. The left and right rib members 91 are both formed to extend in the front-to-rear and up-down directions. By providing such left and right rib members 91, it becomes possible to stably support the inclined surface 74 at a predetermined inclination angle (45 degrees rearward in this embodiment) relative to the upper surface of the pressing member 67.

[0088] Furthermore, if rib members 91 are provided on both the left and right portions of the guide hole 78, the guide hole 78 is formed between the rib member 91 on the left portion and the rib member 91 on the right portion, so that the second fixing device 53b (inclined portion 63) can be smoothly guided into the guide hole 78.

[0089] Next, the pressing force (force Ft) generated on the battery BT by threading the fastening member 77 into the screw groove 65 will be described with reference to FIGS. 7A and 7B.

[0090] 7A shows the battery stand 50 before the fastening member 77 is threaded into the thread groove 65, in other words, in a state where the fastening member 77 is loosened. Fig. 7B shows the battery stand 50 after the fastening member 77 is threaded into the thread groove 65, in other words, in a state where the fastening member 77 is fastened and a pressing force (force Ft) is generated.

[0091] 7A , before fastening member 77 is threaded into thread groove 65, fastening member 77 is located at the tip of inclined portion 63 (the connecting position of connecting portion 90 is at the tip of inclined portion 63). Therefore, length L1 along the inclination direction of second fixing device 53b from bent portion 53c to fastening member 77 is longer than length L2 when fastening member 77 is fastened as shown in FIG. 7B .

[0092] When fastening member 77 is tightened, fastening member 77 moves to the base end (toward bent portion 53c) of inclined portion 63, and the length of second fastener 53b from bent portion 53c to fastening member 77 shortens from L1 to L2. As a result, the connecting position of connecting portion 90 moves from the tip to the base end of inclined portion 63, first fastener 53a rotates downward (in the direction of R1 in the figure), and second fastener 53b rotates backward (in the direction of R2 in the figure).

[0093] 7B , when the fastening member 77 is screwed further into the screw groove 65, the connecting position of the connecting portion 90 moves further toward the base end (toward the bent portion 53c) of the inclined portion 63, and the pressing member 67 presses downward on the upper surface of the battery BT, generating a downward pressing force Fd on the upper surface of the battery BT. In addition, the second fixing device 53b, which is rotating rearward, comes into contact with the front surface of the battery BT, generating a rearward pressing force Fr on the front surface of the battery BT.

[0094] As a result, a downward-rearward pressing force Ft (indicated by the white arrow in the figure) is generated on the battery BT as a result of the downward pressing force Fd and the rearward pressing force Fr. When the pressing force Fd acts on the bottom surface of the battery BT and the upper surface of the mounting base 54, a frictional force is generated on the bottom surface of the battery BT when the battery BT attempts to move horizontally, thereby restricting the horizontal movement of the battery BT. Furthermore, when the pressing force Fr acts on the rear surface of the battery BT and the front surface of the restricting member 55 in addition to the frictional force on the bottom surface of the battery BT, a frictional force is also generated on the rear surface of the battery BT. As a result, frictional forces are generated on both the bottom surface and the rear surface of the battery BT, making it possible to more reliably restrict the horizontal movement of the battery BT.

[0095] In the first embodiment, clamp members 69 are provided between the top surface of the battery BT and the front end of the first fixing device 53a, and between the front surface of the battery BT and the second fixing device 53b. In other words, the fixing members 53 press the battery BT in two directions, downward and backward, via the clamp members 69.

[0096] The clamp member 69 is disposed on the upper front edge of the battery BT so as to straddle the top and front surfaces of the battery BT. The clamp member 69 has an L-shaped cross section when viewed from the left and right. The part of the clamp member 69 behind the L-shaped bend forms a first surface contact portion 70 that comes into surface contact with the front part of the top surface of the battery BT. The part of the clamp member 69 below the L-shaped bend forms a second surface contact portion 71 that comes into surface contact with the upper part of the front surface of the battery BT.

[0097] A protrusion 73 is formed at the rear end of the first surface contact portion 70, and is bent upward. The protrusion 73 has a left protrusion 73L formed at the rear left end of the first surface contact portion 70 and a right protrusion 73R formed at the rear right end of the first surface contact portion 70. The area between the left protrusion 73L and the right protrusion 73R is formed flush with the front end of the first surface contact portion 70. The pressing member 67 of the holding member 52 is superimposed on the first surface contact portion 70 between the left protrusion 73L and the right protrusion 73R (on the upper surface of the first surface contact portion 70) so as to be movable in the front-rear direction.

[0098] A force transmission member 72 is disposed between the fixing member 53 and the battery BT. The force transmission member 72 transmits the pressing force of the fixing member 53 to the battery BT. Specifically, the force transmission member 72 is provided on the second surface contact portion 71 of the clamp member 69 and contacts the upper portion of the linear portion 62 of the second fixing device 53b to transmit the pressing force to the second surface contact portion 71. The force transmission member 72 is a rod-shaped member disposed with its axis oriented in the left-right direction, and is capable of transmitting the pressing force evenly across the entire width of the second surface contact portion 71 from the left end to the right end. The holding members 52 are overlapped on the surface (front surface) of the second surface contact portion 71 from front to back.

[0099] Although the force transmission member 72 in this embodiment has a cylindrical rod shape, the configuration of the force transmission member 72 is not limited to this, and for example, the cross-sectional shape may be elliptical or polygonal, and the force transmission member 72 may have a solid structure or a hollow structure. Furthermore, the force transmission member 72 may be formed by curving or bending the plate-like members that make up the first surface contact portion 70 and the second surface contact portion 71.

[0100] 9A , the force transmission member 72 may be omitted, and the second fixing member 53 b may be brought into direct contact with the second surface contact portion 71 of the clamp member 69. In other words, the example of Fig. 9A can also be said to be one in which the fixing member 53 (second fixing member 53 b) indirectly contacts the front upper corner portion 92 of the battery BT via the clamp member 69, thereby applying a rearward pressing force Fr and a downward pressing force Fd to the battery BT.

[0101] 9B, the force transmission member 72 and the clamp member 69 may be omitted, and the second fixing device 53b may be brought into direct contact with the upper front corner 92 of the battery BT. In this case, the rearward pressing force Fr and the downward pressing force Fd can be applied to the battery BT.

[0102] In addition, the force transmission member 72 may be attached to the second fixing device 53b or the first fixing device 53a instead of the clamp member 69, or may be configured to be sandwiched between the clamp member 69 and the second fixing device 53b without being fixed to any of the clamp member 69, the second fixing device 53b, and the first fixing device 53a.

[0103] Next, a procedure for fastening and unlocking the battery stand 50 of the first embodiment, in other words, a method for attaching and detaching the battery BT to and from the battery stand 50 of the present invention, will be described.

[0104] As shown on the left side of FIG. 7 , to remove the battery BT fixed to the battery stand 50 of the first embodiment, the fastening member 77 is rotated in the loosening direction relative to the threaded groove 65 to loosen the fastening member 77. Loosening the fastening member 77 moves the connecting position of the connecting portion 90 in the inclined direction from the base end of the inclined portion 63 toward the tip end, allowing the inclined portion 63 of the second fastener 53b fixed to the insertion hole 76 to be removed from the insertion hole 76. Furthermore, since the first fastener 53a can swing upward away from the top surface of the battery BT, the downward pressing force Fd acting on the top surface of the battery BT disappears. Furthermore, since the second fastener 53b can swing forward away from the front surface of the battery BT, the rearward pressing force Fr acting on the front surface of the battery BT disappears. As a result, the battery BT fixed to the battery stand 50 can be removed, as shown on the right side of FIG. 7 .

[0105] When fixing the battery BT to the battery stand 50, the battery BT can be fixed to the bracket 51 by performing the operations for removing the battery BT in the reverse order.

[0106] The battery stand 50 described above comprises a mounting base 54 on which the battery BT is placed, a regulating member 55 arranged on the rear side of the battery BT and regulating the rearward movement of the battery BT, and a fixing member 53 arranged from above or above the regulating member 55 to the front side of the battery BT and fixing the battery BT, the fixing member 53 having a first fixing member 53a arranged on the upper side of the battery BT, a second fixing member 53b arranged on the front side of the battery BT, and a connecting portion 90 connecting the first fixing member 53a and the second fixing member 53b, the connecting portion 90 comprising an inclined portion 63 provided on one of the first fixing member 53a and the second fixing member 53b and inclined in a direction approaching the rear side of the battery BT as it goes upward, and a holding member 52 that adjustably holds the connecting position of the other of the first fixing member 53a and the second fixing member 53b relative to the inclined portion 63.

[0107] In this way, by changing the connection position between the first fixing device 53a and the second fixing device 53b along the inclined direction of the fixing member 53, the effective length of the fixing member 53 (the length of the part that contributes to pressing and fixing the battery BT) can be changed.

[0108] In addition, the first fixing device 53a has one end connected to the upper or top of the regulating member 55 and the other end positioned above the front of the battery BT, and the second fixing device 53b has one end formed with an inclined portion 63 of the connecting portion 90 and the other end connected to the mounting base 54.

[0109] In this way, by adjusting the connecting position of both fixing devices 53a, 53b in the inclined direction, it is possible to change the effective length of fixing member 53.

[0110] The second fixing member 53b is bent at a midpoint 53c (bending portion 53c), and the portion extending from the midpoint 53c to one end forms an inclined portion 63 that extends in an inclined direction.

[0111] By using such a second fixing device 53b, the connection position of the other end (front end) of the first fixing device 53a can be changed relative to the inclined portion 63 extending from the middle portion 53c to one end, making it possible to easily change the effective length of the fixing member 53.

[0112] In addition, the regulating member 55 extends from the mounting base 54 above the battery BT, and one end (rear end) of the first fixing device 53a is connected to the upper part of the regulating member 55 so as to be able to swing freely in the vertical direction, and the other end of the second fixing device 53b is connected to the mounting base 54 so as to be able to swing freely in the front-to-back direction of the battery BT.

[0113] By providing the first fixing member 53a, which can be pivoted up and down, and the second fixing member 53b, which can be pivoted back and forth, on the upper part of the restricting member 55, it becomes possible to apply a pressing force to the top and front surfaces of the battery BT by easily changing the effective length of the fixing member 53. As a result, it becomes possible to generate a frictional force on the two surfaces, the bottom and rear, of the battery BT.

[0114] Furthermore, the holding member 52 moves along the inclined portion 63 to change the connection position of the other of the first fastener 53 a and the second fastener 53 b relative to the inclined portion 63 .

[0115] By providing such a retaining member 52, the connection position of the other of the first fixing device 53a and the second fixing device 53b relative to the inclined portion 63 can be changed, and the effective length of the fixing member 53 can be easily changed.

[0116] In addition, an inclined surface 74 inclined in a direction intersecting the inclination direction is formed on the other of the first fixing device 53a and the second fixing device 53b, and the holding member 52 abuts against the inclined surface 74 to hold the connection position of the other of the first fixing device 53a and the second fixing device 53b relative to the inclined portion 63.

[0117] By providing the holding member 52 that contacts the inclined surface 74 in this manner, the connection position of the other of the first fastener 53 a and the second fastener 53 b relative to the inclined portion 63 can be maintained.

[0118] Further, a screw groove 65 is formed in the inclined portion 63 , and the holding member 52 is a fastening member 77 that screws into the screw groove 65 .

[0119] By forming a screw groove 65 in the inclined portion 63 and then providing a fastening member 77 that screws into the screw groove 65 as a retaining member 52, not only can the other connection position of the first fixing device 53a and the second fixing device 53b relative to the inclined portion 63 be maintained, but the effective length of the fixing member 53 can also be easily changed.

[0120] The fixing member 53 is located on the inner side in the width direction of the battery BT placed on the mounting base 54 .

[0121] If the fixing member 53 is provided on the inner side of the battery BT in the width direction, the battery stand 50 becomes compact in the width direction and can be installed without taking up a large space.

[0122] One fixing member 53 is provided on the inner side in the width direction of the battery BT placed on the mounting base 54 .

[0123] If only one fixing member 53 is provided on the inner side of the battery BT in the width direction, the operation required for fastening, etc., can be performed only once, and the battery BT can be quickly fixed.

[0124] The battery stand 50 also has clamp members 69 arranged between the top surface of the battery BT and the first fixing device 53a, and between the front surface of the battery BT and the second fixing device 53b, and the clamp members 69 press the top surface of the battery BT downward using the first fixing device 53a, and press the front surface backward using the second fixing device 53b.

[0125] By providing such a clamp member 69, the pressing force can be uniformly transmitted from the swinging fixing member 53 to the upper surface of the battery BT, and the battery BT can be pressed appropriately.

[0126] The battery stand 50 also includes a force transmission member 72 that is disposed between the fixing member 53 and the battery BT and transmits the pressing force of the fixing member 53 to the battery BT.

[0127] By providing such a force transmission member 72, the force transmitted to the force transmission member 72 can be appropriately applied as a pressing force to the battery BT.

[0128] Furthermore, the fixing member 53 directly or indirectly abuts against the front upper corner portion 92 of the battery BT, and applies rearward and downward pressing forces to the battery BT.

[0129] In this way, by transmitting force directly or indirectly from the fixing member 53 to the front upper corner 92 of the battery BT, it is possible to appropriately apply pressing force to the battery BT despite the simple device configuration that does not use the force transmission member 72 or the clamp member 69.

[0130] The work machine 1 also includes the above-described battery stand 50. This makes it possible to realize the work machine 1 that provides the above-described unique effects.

[0131] Second Embodiment Next, a battery stand 50 according to a second embodiment will be described.

[0132] 8 is a cross-sectional view of the battery stand 50 of the second embodiment as seen from the right side. As shown in Fig. 8, the battery stand 50 of the second embodiment does not use fastening members 77 such as nuts as the holding members 52, but uses tightening fittings 83 such as toggle clamps.

[0133] Specifically, the holding member 52 of the second embodiment is provided with a slope member 75, as in the first embodiment, and a hook member 84 is provided on the inclined surface 74 of the slope member 75. The hook member 84 is a metal fitting formed with a concave shape at the front upper side, and is capable of engaging a latch portion 86 of a tightening metal fitting 83.

[0134] Similar to the first embodiment, the second fastener 53b of the second embodiment also has an inclined portion 63. The inclined portion 63 of the second embodiment is formed in a flat plate shape, and a fastening metal fitting 83 is attached to the upper surface of the inclined portion 63.

[0135] The fastening fixture 83 is a toggle clamp and includes a lever member 87 that pulls the latch portion 86 forward. When the lever member 87 is tilted forward against the elastic force of an elastic member (not shown), the fastening fixture 83 can be locked in a state in which the latch portion 86 is pulled forward (fastened state).

[0136] In other words, in the battery stand 50 of the second embodiment, when the lever member 87 is tilted forward and the latch portion 86 is pulled forward, the distance between the other end (front end) of the first fastener 53a and one end (top end) of the second fastener 53b is shortened, thereby allowing the length of the fastener 53 to be shortened, as in the first embodiment. As a result, the first fastener 53a is brought close to the top surface of the battery BT, and the second fastener 53b is brought close to the front surface of the battery BT. In other words, the first fastener 53a abuts against the top surface of the battery BT, generating a downward pressing force Fd on the top surface of the battery BT. In addition, a rearward pressing force Fr is generated on the front surface of the battery BT. Therefore, as in the first embodiment, frictional forces can be generated on two surfaces, the bottom and rear surfaces of the battery BT.

[0137] A preferred embodiment of the present invention provides a battery stand 50 and a work machine 1 as described in the following items.

[0138] (Item 1) A battery stand 50 comprising: a mounting base 54 on which a battery BT is placed; a restricting member 55 arranged on the rear side of the battery BT and restricting rearward movement of the battery BT; and a fixing member 53 arranged from above or on top of the restricting member 55 to the front side of the battery BT and fixing the battery BT, wherein the fixing member 53 has a first fixing member 53a arranged on the upper side of the battery BT, a second fixing member 53b arranged on the front side of the battery BT, and a connecting portion 90 connecting the first fixing member 53a and the second fixing member 53b, wherein the connecting portion 90 comprises an inclined portion 63 provided on one of the first fixing member 53a and the second fixing member 53b and inclined in a direction approaching the rear side of the battery BT as it goes upward; and a holding member 52 that adjustably holds the connecting position of the other of the first fixing member 53a and the second fixing member 53b relative to the inclined portion 63.

[0139] According to the battery stand 50 relating to this item 1, the effective length of the fixing member 53 (the length of the part that contributes to pressing and fixing the battery BT) can be changed by changing the connection position along the inclination direction of the fixing member 53 between the first fixing device 53a and the second fixing device 53b.

[0140] (Item 2) The battery stand 50 according to Item 1, wherein one end of the first fixing device 53a is connected to the upper or top of the regulating member 55 and the other end is disposed above the front of the battery BT, and the second fixing device 53b has one end on which the inclined portion 63 of the connecting portion 90 is formed and the other end connected to the mounting base 54.

[0141] According to the battery stand 50 of this second aspect, the effective length of the fixing member 53 can be changed by adjusting the connection position of both fixing devices 53a, 53b in the inclined direction.

[0142] (Item 3) The battery stand according to Item 2, wherein the second fixing member 53b is bent at a midpoint 53c, and a portion extending from the midpoint 53c to the one end forms the inclined portion 63 extending in the inclined direction.

[0143] According to the battery stand 50 relating to item 3, by using the second fixing device 53b, the connection position of the other end (front end) of the first fixing device 53a with respect to the inclined portion 63 extending from the middle portion 53c to one end can be changed, and the effective length of the fixing member 53 can be easily changed.

[0144] (Item 4) The battery stand 50 according to any one of items 1 to 3, wherein the regulating member 55 extends from the mounting base 54 above the battery BT, one end of the first fixing device 53 a is connected to an upper portion of the regulating member 55 so as to be swingable in the up-and-down direction, and the other end of the second fixing device 53 b is connected to the mounting base 54 so as to be swingable in the front-to-rear direction of the battery BT.

[0145] According to the battery stand 50 of item 4, by providing a first fixing member 53a that can swing up and down and a second fixing member 53b that can swing back and forth in the direction of the battery BT on the upper part of the restricting member 55, it becomes possible to apply a pressing force to the top and front surfaces of the battery BT by easily changing the effective length of the fixing member 53. As a result, it becomes possible to generate a frictional force on two surfaces, the bottom surface and the rear surface of the battery BT.

[0146] (Item 5) The battery stand 50 according to any one of Items 1 to 4, wherein the holding member 52 moves along the inclined portion 63 to change the connection position of the other of the first fixing device 53 a and the second fixing device 53 b relative to the inclined portion 63.

[0147] According to the battery stand 50 relating to this item 5, by providing a retaining member 52, the connection position of the other of the first fixing device 53a and the second fixing device 53b relative to the inclined portion 63 can be changed, and the effective length of the fixing member 53 can be easily changed.

[0148] (Item 6) The battery stand 50 according to any one of Items 1 to 5, wherein the other of the first fixing device 53 a and the second fixing device 53 b has an inclined surface 74 that is inclined in a direction intersecting the inclination direction, and the holding member 52 abuts against the inclined surface 74 to hold the connection position of the other of the first fixing device 53 a and the second fixing device 53 b relative to the inclined portion 63.

[0149] According to the battery stand 50 relating to item 6, by providing a retaining member 52 that abuts against the inclined surface 74, the other connection position of the first fixing device 53a and the second fixing device 53b relative to the inclined portion 63 can be maintained.

[0150] (Item 7) The battery stand 50 according to any one of items 1 to 6, wherein a screw groove 65 is formed in the inclined portion 63, and the holding member 52 is a fastening member 77 that screws into the screw groove 65.

[0151] According to the battery stand 50 relating to item 7, by forming a screw groove 65 in the inclined portion 63 and then providing a fastening member 77 that screws into the screw groove 65 as the retaining member 52, not only can the other connection position of the first fixing device 53a and the second fixing device 53b relative to the inclined portion 63 be maintained, but the effective length of the fixing member 53 can also be easily changed.

[0152] (Item 8) The battery stand 50 according to any one of items 1 to 7, wherein the fixing member 53 is positioned on the inner side in the width direction of the battery BT placed on the mounting base 54.

[0153] According to the battery stand 50 relating to item 8, the fixing member 53 is configured to be provided on the widthwise inner side of the battery BT, so that the battery stand 50 is compact in width and can be installed without taking up a large space.

[0154] (Item 9) The battery stand 50 according to item 8, wherein one fixing member 53 is provided on the inner side in the width direction of the battery BT placed on the mounting stand 54.

[0155] According to the battery stand 50 relating to item 9, only one fixing member 53 is installed on the widthwise inside of the battery BT, so that only one operation is required for fastening, etc., and the battery BT can be quickly fixed.

[0156] (Item 10) The battery stand 50 according to any one of items 1 to 9, further comprising clamp members 69 disposed between an upper surface of the battery BT and the first fixing device 53 a and between a front surface of the battery BT and the second fixing device 53 b, wherein the clamp members 69 press the upper surface of the battery BT downward by the first fixing device 53 a and press the front surface backward by the second fixing device 53 b.

[0157] According to the battery stand 50 of this item 10, by providing the clamp member 69, the pressing force can be transmitted evenly from the swinging fixing member 53 to the upper surface of the battery BT, thereby appropriately pressing the battery BT.

[0158] (Item 11) The battery stand 50 according to any one of items 1 to 10, further comprising a force transmission member 72 disposed between the fixing member 53 and the battery BT, which transmits a pressing force of the fixing member 53 to the battery BT.

[0159] According to the battery stand 50 of this Item 11, the force transmitted to the force transmission member 72 can be appropriately applied to the battery BT as a pressing force.

[0160] (Item 12) The battery stand 50 according to any one of items 1 to 11, wherein the fixing member 53 directly or indirectly abuts against a front upper corner 92 of the battery BT and applies rearward and downward pressing forces to the battery BT.

[0161] According to the battery stand 50 relating to this item 12, by transmitting force directly or indirectly from the fixing member 53 to the front upper corner 92 of the battery BT, it is possible to appropriately apply pressing force to the battery BT despite having a simple device configuration that does not use a force transmission member 72 or a clamp member 69.

[0162] (Item 13) A work machine 1 including the battery stand 50 according to any one of items 1 to 12.

[0163] According to the work machine 1 according to this item 13, it is possible to realize a work machine 1 that exhibits the unique effects described above.

[0164] Although the embodiments of the present invention have been described above, the embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is defined by the claims, not by the above description, and is intended to include all modifications within the meaning and scope of the claims.

[0165] REFERENCE SIGNS LIST 1 Work machine 50 Battery stand 52 Holding member 53 Fixing member 53a First fixing device 53b Second fixing device 54 Placement base 55 Restricting member 63 Inclined portion 65 Thread groove 67 Pressing member 72 Force transmission member 74 Inclined surface 77 Fastening member 90 Connecting portion 91 Rib member 92 Front upper corner portion BT Battery

Claims

1. A mounting table for mounting a battery, A restricting member disposed on the rear side of the battery to restrict the rearward movement of the battery, A fixing member disposed across the front surface of the battery from above or on top of the restricting member and fixing the battery, comprising: The fixing member has a first fixture disposed on the upper surface side of the battery, a second fixture disposed on the front surface side of the battery, and a connecting portion connecting the first fixture and the second fixture. The connecting portion includes an inclined portion provided on one of the first fixture and the second fixture and inclined in an inclined direction approaching the rear surface side of the battery as it goes upward, and a holding member that adjustably holds the connecting position of the other of the first fixture and the second fixture with respect to the inclined portion. One end of the first fixture is connected above or on top of the restricting member, and the other end is disposed above the front portion of the battery. One end of the second fixture is formed with the inclined portion of the connecting portion, and the other end is connected to the mounting table. The second fixture is bent at an intermediate portion, and the portion from the intermediate portion to the one end forms an inclined portion extending in the inclined direction, which is a battery base.

2. The restricting member extends upward from the mounting table above the battery. The one end of the first fixture is connected to the upper portion of the restricting member so as to be swingable in the vertical direction. The battery base according to claim 1, wherein the other end of the second fixture is connected to the mounting table so as to be swingable in the front-rear direction of the battery.

3. The battery base according to claim 1, wherein the holding member changes the connecting position of the other of the first fixture and the second fixture with respect to the inclined portion by moving along the inclined portion.

4. A mounting table for mounting a battery, A restricting member disposed on the rear side of the battery to restrict the rearward movement of the battery, A fixing member disposed across the front surface of the battery from above or on top of the restricting member and fixing the battery, comprising: The fixing member has a first fixture disposed on the upper surface side of the battery, a second fixture disposed on the front surface side of the battery, and a connecting portion connecting the first fixture and the second fixture. The connecting portion is provided on one of the first fixture and the second fixture, and includes an inclined portion inclined in an inclined direction that approaches the rear surface side of the battery as it goes upward, and a holding member that holds the connecting position of the other of the first fixture and the second fixture with respect to the inclined portion adjustably. By moving along the inclined portion, the holding member changes the connecting position of the other of the first fixture and the second fixture with respect to the inclined portion. On the other of the first fixture and the second fixture, an inclined surface inclined in a direction intersecting the inclined direction is formed. The holding member is a battery holder that holds the connecting position of the other of the first fixture and the second fixture with respect to the inclined portion by contacting the inclined surface.

5. A screw groove is formed in the inclined portion. The battery holder according to claim 1 or 4, wherein the holding member is a fastening member that engages with the screw groove.

6. The battery holder according to claim 1 or 4, wherein the fixing member is located inside the battery in the width direction placed on the mounting table.

7. The battery holder according to claim 6, wherein one fixing member is provided inside the battery in the width direction placed on the mounting table.

8. A clamp member is provided between the upper surface of the battery and the first fixture, and between the front surface of the battery and the second fixture. The battery holder according to claim 1 or 4, wherein the clamp member presses the upper surface of the battery downward by the first fixture and presses the front surface backward by the second fixture.

9. The battery holder according to claim 1 or 4, further comprising a force transmission member disposed between the fixing member and the battery, for transmitting the pressing force of the fixing member to the battery.

10. The battery holder according to claim 1 or 4, wherein the fixing member directly or indirectly contacts the upper front corner of the battery and applies a pressing force to the battery backward and downward.

11. A working machine comprising the battery holder according to claim 1 or 4.