JP3462583B2 - Work vehicle battery support structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery support structure for a work vehicle such as a tractor for fixing a battery by pressing it against a mounting base.

[0002]

2. Description of the Related Art As shown in FIGS. 7 and 8 , for example, a pressing metal fitting 33 having an L-shaped cross section is provided for pressing the front end of the upper surface of a battery 15 mounted on a mounting base 19 downward over the entire width. Both ends of the press fitting 33 and the mounting base 19
There is a bolt 34 and a nut 35 for pulling the pressing member 33 obliquely downward between the two.

[0003]

In the structure of the prior art described above, in order to facilitate the work of connecting an electric wire to the terminal of the battery, as shown in FIGS. 7 and 8 , for example, the terminal of the battery 15 is connected. When the battery 15 is placed on the mounting base 19 such that the battery 15a is located in front of the center in the front-rear width direction, the pressing metal fitting 33 that presses down the front end of the upper surface of the battery 15 approaches the terminal 15a of the battery 15. Will be done. As a result, there is a possibility that sparks may be generated between the pressing metal 33 and the terminal 15a of the battery 15 unless the pressing metal 33 is insulation-coated with vinyl or the like.

Since the pressing metal fitting extends over the entire width of the front end portion of the upper surface of the battery (because it extends over a pair of terminals of the battery), the spark as described above is short-circuited.
Induces an early discharge of the battery (battery exhausted)
May be caused. In this case, if the pressing metal is insulation-coated with vinyl or the like, the cost will increase. If the terminals of the battery are positioned rearward by changing the direction of the battery, and the distance between the holding metal fitting and the terminal of the battery is secured, it becomes difficult to connect the electric wire to the terminal of the battery.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a battery support structure for a work vehicle, which prevents a short circuit due to a spark without causing an increase in cost. An object of the present invention is to provide a battery support structure capable of reliably supporting a battery while preventing the occurrence of a short circuit due to a spark. Further, another object of the present invention is to provide a battery support structure capable of attaching and detaching the battery with good workability.

[0006]

A feature of the present invention resides in the following structure in a battery supporting structure for a work vehicle. [1] A holder provided with a mounting base on which a battery is mounted, a fixed frame above the mounting base, and a pressing portion for pressing down the central portion of the upper surface of the battery mounted on the mounting base downward. , Position of the pressing part in the pressing position
Left and right sideways at two places spaced apart at a higher position
Mounted on the fixed frame so that it can swing up and down around the axis center
And hold down the battery and hold it down
It is configured to be switchable between power and force, and presses the pressing part
It is provided with an operating means for fixing the force .

[2] In the construction of the above- mentioned [1], the operating means is mounted on the lower part.
Attach it to the mounting table and tighten the upper part with the nut with a nut.
It is a single operation means for attaching and fixing .

[3] In the structure of [1] or [2] above, the fixed frame is fixed to the mounting base, and the mounting base is fixed to the front frame member with bolts and nuts.

[4] The mounting base on which the battery is mounted is fixed to the front frame member with bolts and nuts, and the fixing frame is fixed above the mounting base to fix the upper surface of the battery mounted on the mounting base. Hold down the presser with the presser for pressing down the central part in the pressing action posture.
In two places spaced apart at a position higher than the position of the part
The fixed frame that can swing up and down around the horizontal axis
Attached to the battery,
It is configured so as to be switchable between a release position and an operation release position, and is provided with an operating means for pressing the pressing portion and fixing it in the working position.

[0010]

[I] According to the features of claims 1 to 4 , a pressing tool for pressing the upper surface of the battery downward and fixing it to the mounting base is provided with a device for pressing the central portion of the upper surface of the battery. Since it is possible to secure the distance between the presser and the battery terminal, it is possible to prevent sparks between the presser and the battery terminal even if the presser is not insulation-coated with vinyl or the like. .

[II] According to the features of claims 1 to 4 , the pressing member is pressed in the pressing action posture on the fixed frame arranged above the mounting base.
Two places spaced apart at a position higher than the position of the collar
Is attached so that it can swing up and down around the left and right sideways axis cores.
The pressing position and pressing release position for the battery
Since it is configured to be switchable to the
To release the Tteri by this <br/> and to release holding the retainer, it can be performed detachable for mounting base of the battery, such as a replacement. According to the features of claims 1 to 4 , since the displacement of the holding tool in the front-back and left-right directions of the battery due to the operation of the operating means is restricted, the holding part of the holding tool comes off the upper surface of the battery, etc. It is possible to prevent the pressing failure of and to secure the pressing action of the pressing tool.

[III] In the battery, there are a type in which the water supply plug protrudes from the upper surface portion and a type in which the water supply stopper does not protrude. In this case, according to the features of claims 1 to 4 , paying attention to the fact that the upper surface portion is formed as a flat surface in various types of batteries,
Since it is configured so that the pressing part of the pressing tool acts on the center of the, it is possible to reliably perform the pressing action of the pressing part regardless of the presence or absence of the unevenness of the upper surface of the battery due to the water tap. The battery can be fixed by the same operation regardless of the model.

[IV] According to the feature of claim 2 , the pressing member is in the pressing action posture.
Spaced at a position higher than the position of the holding part of
Swing up and down around a horizontal axis centered horizontally on a fixed frame at two points
Since it is freely attached, the pressing action of the pressing part by the pressing tool can be stably and reliably performed, and a single operating means that acts on one place of the pressing part of the pressing tool is used as the operating means. Since it is provided, only one operation for causing the pressing action of the pressing portion is required, and only one operation for releasing the pressing action of the pressing portion is required.

[0014]

According to the features of claims 1 to 4 , it is possible to prevent the occurrence of a short circuit due to a spark without causing an increase in cost, and to securely fix the battery. Regardless of this, it is now possible to provide a battery support structure for a work vehicle that can fix and release the battery with good operability.

[0015]

[Example] An example of application to an agricultural tractor will be shown. As shown in FIGS. 1 and 2, in an agricultural tractor, a front frame 2 having a pair of left and right front wheels 1 for steering and driving, which is in a front-rear and lateral orientation, is fixed to a crankcase 4 of an engine 3, and a left and right driving wheels are provided. A rear transmission case 6 equipped with a pair of rear wheels 5 is provided with a rear clutch housing 7 of the engine 3.
Are connected by a connecting frame member 8.

As shown in FIGS. 2 and 4, the front frame 2
Is composed of a pair of left and right front frame members 2A arranged side by side in the left-right direction and a front end frame member 2B connected to the front ends of the front frame members 2A. 1 and 2
As shown in FIG. 5, a rear frame 9 having a gate-shaped front view is fixed to the clutch housing 7. As shown in FIG. 1, a hydraulic continuously variable transmission 10 is attached to a mission case 6, and a steering wheel 11 and a driver's seat 12 are provided.
Is provided.

As shown in FIG. 2, an engine room 13 in which the engine 3 is housed is provided with a radiator 14 for cooling the engine 3, a battery 15 and a headlamp 16. The radiator 14 is arranged in the front part of the engine 3, the battery 15 is arranged in the lower part of the front part of the radiator 14, and the headlamp 16 is arranged in the upper part of the front part of the radiator 14 (the upper part of the battery 15). It is arranged.

As shown in FIG. 2, the radiator 14 includes a pair of left and right overhang brackets 17 fixed to the front frame 2.
It is supported via the cushion material 18. As shown in FIGS. 3 and 4, the terminals 15a provided on the upper surface of the battery 15 are arranged in the left-right direction, and are closer to the terminal 15a on the opposite sides in the direction orthogonal to the direction in which the terminals 15a of the battery 15 are arranged. The battery 15 is arranged in a laterally-lateral posture in which the side of the side is located ahead of the other sides.

As shown in FIGS. 2, 3 and 4, the battery 1
A mounting table 19 on which the vehicle 5 is placed in a horizontal position is supported by the front frame 2, and acts on the upper surface of the battery 15 mounted on the mounting table 19 to mount the battery 15 on the mounting table 1.
A fixing means for pressing and fixing to 9 is provided.

As shown in FIGS. 2, 3 and 4, the mounting table 19 is
A mounting plate portion 19A that forms a mounting surface of the battery 15 is provided, and a front stopper plate portion 19B in a standing posture that prevents the battery 15 from moving forward by contacting the front surface of the battery 15 is a mounting plate portion. A rear stopper plate portion 19E, which is provided at the front end of 19A and blocks rearward movement of the battery 15 by contacting the rear surface of the battery 15, is provided at the rear end of the mounting plate portion 19A. There is. A pair of left and right loading plate portions 19C to be placed on the front frame member 2A are provided at both left and right ends of the placing plate portion 19A, and are positioned in the left-right direction with respect to the front frame 2 by contacting the inner side surfaces of the front frame member 2A. The loading plate portion 19C is provided with a pair of left and right mounting plate portions 19D. The mounting table 19 includes a mounting plate portion 19A, a front stopper plate portion 19B, a rear stopper plate portion 19E and a loading plate portion 19C.
It is a sheet-metal processed product that is integrally molded.

As shown in FIGS. 2, 3 and 4, the loading plate portion 19
By mounting C on the front frame material 2A and fixing the mounting plate portion 19D to the inner surface of the front frame material 2A, the mounting plate portion 19D is fixed to the front frame material 2A by the bolts B and nuts N. The mounting table 19 is fixed to the front frame 2. The mounting plate portion 19D is formed by stamping the loading plate portion 19C, and the nut N is fixed to the mounting plate portion 19D.

As shown in FIGS. 2, 3 and 4, the battery 1
5, the fixed frame 20 is arranged at an upper position near the rear of the battery 5, and a pressing member 21 having a pressing portion 21A for pressing the central portion of the upper surface of the battery 15 downward is provided. An operating means is provided for fixing to. The fixed frame 20 is the loading plate 1
9C is composed of a pair of left and right support members 20A made of plate material fixed in a vertical posture, and a horizontal frame member 20B installed over the upper ends of the support members 20A. The fixed frame 20 is fixed to the mounting base 19, and the fixed frame 20 and the mounting base 19 constitute one frame structure fixed to the front frame 2. The horizontal frame member 20B includes an up-down plate portion and a horizontal plate portion that is continuous with the upper ends of the up-down plate portion, has a lateral cross-sectional shape of an L shape, and is formed of an angle member.

As shown in FIGS.
Is configured to be swingable up and down around the left and right lateral axis a1 so as to be switchable between a holding action posture and a holding release posture that allows the battery 15 to be detached from the mounting base 19 to the upper front side. Also, it is attached to the fixed frame 20 with its position in the left-right direction being restricted.

As shown in FIGS.
Is attached to the support portions 22 formed at two positions spaced apart from each other in the vertical plate portions of the horizontal frame body 20B.
It is composed of a pair of left and right support legs 21C that are supported to swing up and down around a circumference via a pin 21B, and a holding portion 21A provided at the tip (front end) of the support leg 21C.
The pressing portion 21A has a U shape in a plan view, and has a pin 21B,
The support leg 21C and the pressing portion 21A are integrally formed by bending one rod-shaped body. Support part 22
Fixed frame 20
The position in the front-rear direction with respect to the (mounting table 19) is regulated, and the position in the left-right direction with respect to the mounting table 19 is regulated by the contact of the support leg 21C with the support portion 22. Support part 22
Are formed by stamping the vertically oriented plate portion of the horizontal frame body 20B.

As shown in FIGS. 2, 3 and 4, the operating means is a means which acts on one portion of the pressing portion 21A, and the left and right central portions of the front stopper plate portion 19B are bulged forward to form the bulging portion 24. The pulling bolt 25 is formed and is provided with a pulling bolt 25 that pulls the pressing portion 21A toward the bulging portion 24 and presses the pressing portion 21A against the upper surface portion of the battery 15 when the wing nut 23 is screwed.

As shown in FIGS. 3 and 4, the pull bolt 2
The lower end portion of 5 is formed in a hook portion 25a that is inserted into the through hole of the bulge portion 24 and engages with the bulge portion 24 so that the upward movement and rotation around the axis with respect to the mounting base 19 are blocked. ing. The upper end portion of the pulling bolt 25 penetrates a gap formed between the facing portions of the U-shaped pressing portion 21A in a vertical posture, and the hook portion 25a is engaged with the bulging portion 24 via a washer 26. It is formed in a screw portion 25b into which the wing nut 23 is screwed so as to push the pressing portion 21A downward.

As shown in FIGS. 3 and 4, the hook portion 25
By engaging a with the bulging portion 24 and penetrating the gap of the holding portion 21A, the pulling bolt 25 is brought into contact with the connecting portion of the holding portion 21A, whereby the pulling bolt 25 with the bulging portion 24 as a fulcrum The forward rocking is prevented.
In this state, the pulling bolt 25 is brought into contact with the upper part of the front surface of the battery 15 so that the wing nut 23 is screwed into the screw portion 25b to be screwed and the pressing portion 21A presses the upper surface of the battery 15 downward. The battery 15 is prevented from falling forward. With the wing nut 23 removed from the screw portion 25b, the pulling bolt 25 separates from the holding portion 21A and swings forward with the bulge portion 24 as a fulcrum as the holding tool 21 swings to the holding release posture. Due to
The front surface of the battery 15 placed on the mounting table 19 is opened, and the battery 15 can be taken out forward.

Next, the procedure for fixing and removing the battery 15 to and from the mounting base 19 will be described. (1) Work of mounting the battery 15 on the mounting base 19 by engaging the hook portion 25a with the bulge portion 24, (2) Erecting the pull bolt 25 with the bulge portion 24 as a fulcrum, and pressing the pressing tool 21 into a swinging posture. By moving the pulling bolt 25 through the gap of the holding portion 21A, and (3) tightening the wing nut 23 into the screw portion 25b and screwing it together, the battery 15 is mounted on the mounting base 19 in order. Fix it.

(1) Work for removing the wing nut 23 from the threaded portion 25b, (2) Work for swinging the holding tool 21 in the holding release posture to remove the pull bolt 25 from the holding portion 21A, (3) Pull bolt 25 The battery 15 is detached from the mounting base 19 by sequentially tilting and swinging the battery 15 to remove the battery 15 from the mounting base 19 in the state in which the front side of the battery 15 is opened.

Next, a cover structure for covering the engine room 13 will be described. As shown in FIG. 2, a bonnet 27 that covers the upper surface, the front surface, and the left and right side surfaces of the upper side of the engine room 13, and a left and right side that covers the left and right side surfaces of the lower side rear portion behind the battery 15 in the lower side portion of the engine room 13. A pair of side covers 28 and a front cover 29 that covers the front and left and right side surfaces of the battery 15 at the lower side of the engine room 13 are provided.

As shown in FIG. 2, the bonnet 27 is swung up and down about the laterally-oriented lateral axis X with the rear end as a fulcrum, so that the bonnet 27 is positioned in the laterally closed position and the front end is positioned diagonally forward and upward with respect to the rear end. It is configured to be freely switchable to the open position, is vertically swingably attached to the rear frame 9, and the head lamp 16 is incorporated in the front portion. Bonnet 2
The vicinity of the front end of 7 is held in the closed posture while being mounted on the horizontal frame body 20B. The side cover 28 is configured to open and close the side surface of the engine room 13 by attachment and detachment, and the front cover 29 is also configured to open and close the front portion of the engine room 13 by attachment and detachment. A suction-type radiator fan 30 that sucks air from the front through the radiator 14 is arranged between the radiator 14 and the engine 3.

[Other Embodiments ] The retainer 21 and the operating means constituting the fixing means may be constructed as follows. As shown in FIGS. 5 and 6, similarly to the above-described [embodiment], the pressing tool 21 is configured to be switchable between a pressing action position and a pressing release position by vertically swinging around the laterally-oriented horizontal axis a1. However, with the position of the battery 15 in the front-rear and left-right directions being restricted, the pillar body 20
Attach the retainer 21 to A.

As shown in FIG. 5 and FIG.
Is a single support leg 21C supported vertically swingably around a horizontal lateral axis a1 of the support portion 22 of the support column 20A via a shaft 21D, and a holding portion 21A provided at the tip of the support leg 21C. It consists of In the two bar materials that are bent into an L shape, the bar material parts on one side are overlapped,
The shaft portions 21D and the support legs 21C are configured by joining the rod members on the other sides so as to be aligned.

As shown in FIGS. 5 and 6, the pressing portion 21A
Is a member having an L-shaped cross section so as to press the set front-rear width of the front end of the upper surface of the battery 15 in the pressing action posture and contact the upper front portion of the battery 15. The pressing portion 21A prevents the battery 15 from moving forward (tilting the battery 15 forward) by contacting the upper front surface of the battery 15 in the pressing action posture.

As shown in FIGS. 5 and 6, both ends of the shaft 21D are bent into an L shape to form a stopper portion 21S which abuts the support portion 22 in a laterally positioned state. The support portion 22 of the column body 20A is configured so that the shaft 21D can be inserted therein from above, and is formed as a notch that rotatably receives and supports the inserted shaft 21D around the laterally-oriented horizontal axis a1. Thereby, the pressing tool 21
Is detachable from the fixed frame 20.

As shown in FIGS. 5 and 6, in the operating means, a ring-shaped engaging portion 21E is formed at the end of the stopper portion 21S, and the end of the hook bolt 21F is attached to the pillar body 20A at the left and right lateral axis a1. The other end of the hook bolt 21F is supported swingably up and down, the other end of the hook bolt 21F is inserted into the engaging portion 21E, and the wing nut 23 is screwed onto the other end of the hook bolt 21F.

As a result, the wing nut 23 is tightened and screwed into the hook bolt 21F, whereby the engaging portion 21
By pressing E downward and swinging the stopper portion 21S downward, the pressing tool 21 is swung in the pressing action posture and fixed. By removing the wing nut 23 from the hook bolt 21F, the retainer 21 is removed from the column body 20A.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

1] Overall side view of an agricultural tractor

[Fig. 2] Vertical side view of the engine room

[Fig. 3] Side view of the vicinity of the battery

FIG. 4 is a perspective view near the battery.

FIG. 5 is a side view of the vicinity of a retainer according to another embodiment .

FIG. 6 is a perspective view of the vicinity of a retainer according to another embodiment .

FIG. 7: Side of the vicinity of the battery showing the structure of the prior art
Plan

FIG. 8 is a plan view showing the structure of the prior art near the battery.
Plan

[Explanation of symbols]

15 battery 19 mounting base 20 fixed frame 21 Presser 21A holding part

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Seiichi Nakanishi 64, Ishizukita-machi, Sakai-shi, Osaka Inside the Kubota Sakai Plant (56) References: ACT 59-104459 (JP, U) ACT 63 −112755 (JP, U) Actual Kaihei 2-338356 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B60R 16/04 H01M 2/10

Claims (4)

(57) [Claims] 1. A battery (15) mounted on the mounting table (19), comprising a mounting table (19) on which a battery (15) is mounted, and a fixed frame (20) above the mounting table (19). pressing portion for pressing a central portion of the upper surface portion below the) a (21A) and includes a retainer (21), the pressing action figure
At a position higher than the position of the pressing part (21A) by force
Around the axial center (a1) on the left and right sides at two points spaced apart by
Attach it to the fixed frame (20) so that it can swing up and down,
Holding action posture and holding solution for battery (15)
A battery support structure for a work vehicle, which is configured to be freely switchable to a removing position and provided with an operating means for fixing the pressing portion (21A) in a pressing action position . 2. The operation means has a lower part on which a mounting table (19) is attached.
Attached to the top of the pressing part (21A).
The battery supporting structure for a work vehicle according to claim 1, wherein the battery supporting structure is a single operating means that is fixed by tightening with a toe (23) . 3. The fixing frame (20) is fixed to the mounting table (19), and the mounting table (19) is fixed to the front frame member (2A) with bolts (B) and nuts (N). The battery support structure for a work vehicle according to claim 1 or 2. 4. A mounting base (19) on which a battery (15) is mounted is fixed to the front frame member (2A) by a bolt (B) and a nut (N), and the mounting base (19) is also mounted.
The fixing frame (20) is fixed to the upper part of the mounting base (19), and the pressing part (21A) is provided for pressing down the central portion of the upper surface of the battery (15) mounted on the mounting table (19). retainer (21), the pressing action figure
At a position higher than the position of the pressing part (21A) by force
Around the axial center (a1) on the left and right sides at two points spaced apart by
Attach it to the fixed frame (20) so that it can swing up and down,
Holding action posture and holding solution for battery (15)
A battery supporting structure for a working vehicle, which is configured to be freely switchable to a removing position and provided with an operating means for fixing the pressing portion (21A) in a pressing working position.