JPH0848196A - Battery supporting structure of working vehicle - Google Patents

Abstract

PURPOSE:To prevent the occurrence of the spark by forming a holding tool to hold down the front end part on the upper surface of a battery and fix it to a mount table so that only the center part in the right-to-left direction of the front end part on the upper surface of the battery may be held to sufficiently secure the distance between the holding tool and terminals. CONSTITUTION:When a battery 15 is loaded on a mount table 19 in the transverse position where terminals 15a are arranged in the right-to-left direction, a fixing means to press and fix the battery 15 against and to the front end part on the upper surface of the battery 15 is provided. A holding tool 21 having a holding part 21A to press downward only the center part in the right-to-left direction of the front end part on the upper surface of the battery 15 is provided on a fixing frame 20 arranged to the upper part above the rear part of the battery 15 so as to be swayably and pivotably supported 17 a supporting part 22. An upper end screw part of a pulling bolt 25 to lock a lower side hook part 25a to one side of the mount table 19 is locked to the holding part 21A of this holding tool 21, and fixed by screwing a butterfly nut 23 to an upper end screw part 25b.

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, and more specifically, a battery is mounted on a mounting base in a horizontal position in which terminals are arranged in the left-right direction and acts on the front end of the upper surface of the battery. The present invention relates to a structure provided with fixing means for pressing and fixing a battery on a mounting base.

[0002]

2. Description of the Related Art Conventionally, a fixing means has been constructed as shown in FIG.
As shown in FIG. 10, a pressing metal fitting 33 having a cross-sectional L-shape for pressing the front end portion of the upper surface of the battery 15 mounted on the mounting base 19 downward is provided, and both ends of the pressing metal fitting 33 are mounted. Between the base 19 and the bolt 34, a bolt 34 for pulling the pressing member 33 obliquely downward
-The nut 35 was provided.

[0003]

However, according to the above-mentioned conventional technique, in order to facilitate the terminal work such as the connection work of the electric wire to the terminal, as shown in the figure, the battery 15 is connected to the front and rear terminals 15a. When mounted on the mounting table 19 in a position that is positioned in front of the center in the width direction, the battery 1
The pressing metal fitting 33 for pressing the front end portion of the upper surface of 5 downwardly comes very close to the terminal 15a. As a result, unless the pressing metal fitting is insulation-coated with vinyl or the like, the spark between the pressing metal fitting and the terminal is provided. May occur.

Since such a spark is such that the holding metal fitting extends over the entire width of the front end portion of the battery, that is, it extends between the pair of terminals, a short circuit is induced and the battery is discharged early ( Battery exhausted).

However, if the metal fittings are insulation-coated with vinyl or the like, the cost will increase.

[0006] Of course, when the front and rear of the battery are replaced and the terminals are positioned on the rear side so as to secure the distance between the terminals and the metal fittings, work for connecting terminals such as connecting wires to the terminals is performed. Make it difficult.

A first object of the present invention is to provide a support structure for a battery without causing an increase in cost, even when a battery is mounted in a sideways posture in which the terminals are located on the front side. Spark caused by
That is, the purpose of the present invention is to provide a battery support structure for a work vehicle that can prevent the occurrence of a short circuit. A second object is to provide a battery support structure for a work vehicle that can reliably support a battery while preventing such a short circuit. Is in the point of providing
A third object is to provide a battery support structure for a work vehicle in which the battery can be attached / detached with good workability.

[0008]

The features of the battery support structure for a work vehicle according to the first aspect of the present invention are set forth in the following:
To configure the fixing means, a fixing frame is arranged at a position above the rear of the battery and a pressing member having a pressing portion for pressing down only the left and right center portions of the front end portion of the upper surface of the battery is pressed down. An operating means is provided to be attached to the fixed frame in a state in which the working posture and the holding release posture can be freely switched, and in which the front and rear and left and right positions are regulated, and which fixes the holding member in the holding working posture. In point.

According to a second aspect of the present invention, the battery supporting structure for a work vehicle according to the second aspect is characterized in that, in the first aspect, the pressing member is attached to a fixed frame at two positions spaced apart in the left-right direction. There is a point.

A feature of the battery support structure for a work vehicle according to the third aspect of the present invention is that, in the first aspect and the second aspect of the invention, the operating means is provided at one position of the pressing portion of the pressing tool. The point is that a means for acting is provided.

[0011]

According to the first to third inventions, a pressing tool for pressing the front end of the upper surface of the battery downward and fixing it to the mounting base is provided by pressing only the central portion of the front end of the upper surface of the battery. Therefore, even if the battery is mounted in a horizontal position with the terminals located toward the front, secure a sufficient distance between the retainers and the terminals and do not insulate the retainers with vinyl or the like. It is possible to prevent sparks between the retainer and the terminals.

Moreover, the pressing tool is attached to the fixed frame disposed above the rear of the battery in a state in which it can be switched between the pressing action position and the pressing release position and the front and rear and left and right positions are restricted. Therefore, by switching the presser to the press release position, it is possible to attach and detach to the mounting base such as changing the battery, and also to prevent the presser from changing the front and rear and left and right positions due to the operation by the operating means. It is possible to prevent a pressing defect such as the pressing portion of the tool coming off from the front end portion of the upper surface, and to reliably perform the pressing action of the pressing tool.

In addition, there are two types of batteries, one of which has a water faucet protruding from the upper surface and the other of which does not protrude from the upper surface. In both types of batteries, the front end of the upper surface is formed as a flat surface. It is configured so that the pressing portion of the pressing member acts only on the center of the front end portion of the upper surface formed on the flat surface, so that the pressing member is regulated in the horizontal direction. In order to make sure that the pressing action is performed by, the pressing tool extends over the fixed frame and the front end of the upper surface of the battery, that is, the pressing tool is configured to substantially cross the upper surface of the battery in the front-back direction. Avoiding interference with the installation of the holding part due to the unevenness of the battery top surface caused by it, regardless of the presence or absence of the unevenness of the battery top surface due to the water tap, the holding action of the holding part It can be really done. In other words, any type of battery can be fixed by the same operation regardless of the type.

According to the second aspect of the present invention, by attaching the pressing tool to the fixed frame at two positions spaced apart in the left-right direction, the horizontal posture of the pressing tool, that is, the horizontal position of the pressing portion is stabilized. With this configuration, it is possible to stably and reliably perform the pressing action of the pressing portion.

According to the third invention, as the operating means,
Since the means for acting on one position of the pressing portion of the pressing tool is provided, only one operation for pressing the pressing portion is required and only one operation for releasing the pressing portion is required.

[0016]

Therefore, according to the first aspect of the present invention as set forth in claim 1, the cost is increased even when the battery is mounted in a sideways posture in which the terminals are located on the front side. Of the sparks caused by the support structure, that is, the occurrence of a short circuit can be prevented, and it can be securely fixed, and can be fixed and released with good operability regardless of the type of the faucet. It is now possible to provide a battery support structure for work vehicles.

Particularly, when the second invention of the second aspect of the present invention is used, the fixing can be performed more reliably, and when the third invention of the third aspect of the invention is used, the fixing and releasing can be performed with higher operability.

[0018]

[Example] An example of application to an agricultural tractor will be shown.

As shown in FIGS. 1 and 2, an agricultural tractor has 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 and fixed to a crankcase 4 of an engine 3 for driving. It has a body frame structure in which a rear transmission case 6 equipped with a pair of left and right rear wheels 5 is fixedly connected to a rear clutch housing 7 of an engine 3 by a connecting frame member 8. As shown in FIG. 4, the front frame 2 is made up 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 for fixing and connecting their front ends. The clutch housing 7 includes a rear frame 9 having a gate-shaped front view.
Are firmly connected. A hydraulic continuously variable transmission 10 is attached to the rear mission case 6. Reference numeral 11 is a steering wheel, and 12 is a driver's seat.

As shown in FIG. 2, an engine cooling radiator 14, a battery 15 and a headlamp 16 are incorporated in an engine room 13 in which the engine 3 is housed.

As shown in FIG. 2, the radiator 14 is arranged in the front part of the engine 3, and the battery 15 is arranged in the lower part of the front part of the radiator 14, and the headlamp 16 is provided. Are arranged in the upper part of the front part of the radiator 14, that is, in the upper part of the battery 15.

As shown in FIG. 2, the radiator 14 is loaded and supported by a pair of left and right overhang brackets 17 fixed to the front frame 2 via cushion members 18.

As shown in FIGS. 3 and 4, the battery 15 has terminals 15a attached to the upper surface thereof arranged in the left-right direction, and the terminals 15a among the opposite sides in the direction orthogonal to the juxtaposed direction of the terminals 15a. It is arranged in a left-right sideways posture in which the side on the side closer to is positioned ahead of the other sides.

As shown in FIGS. 3 and 4, the supporting structure for supporting the battery 15 in the left and right sideways posture is such that the mounting base 19 for mounting the battery 15 in the left and right sideways posture is provided on the front frame 2. It is configured to be provided with a fixing unit that is connected to and supported on the mounting table 19 and that acts on the front end portion of the upper surface of the battery 15 mounted on the mounting table 19 to press and fix the battery 15 to the mounting table 19.

The mounting table 19 is provided with a mounting plate portion 19A forming a mounting surface of the battery 15, and the mounting plate portion 19 is provided.
The front end of A is connected to a front stopper plate portion 19B in a standing posture that prevents the battery 15 from moving forward by abutting against the front surface of the battery 15.
At the rear end of A, a rear stopper plate portion 19E in an upright posture that blocks the rearward movement of the battery 15 by contacting the rear surface of the battery 15 is connected, and the mounting plate portion 19 is connected.
A pair of left and right loading plate portions 19C to be loaded on the front frame member 2A of the front frame 2 are connected to the left and right ends of A, respectively,
The front frame member 2A is attached to each of the loading plate portions 19C.
It is configured by connecting a pair of left and right mounting plate portions 19D that are positioned in the left-right direction with respect to the front frame 2 by contacting the inner surface of the mounting plate portion 19A, the front stopper plate portion 19B, and the rear stopper. Plate part 19E, loading plate part 1
9C is an integrally molded sheet metal product.

The mounting table 19 causes the loading plate portion 19C to be loaded on the front frame member 2A, and the mounting plate portion 19C.
By fixing and connecting the mounting plate portion 19D to the front frame member 2A via the bolts B and nuts N in a state in which D is brought into contact with the inner surface of the front frame member 2A, it can be mounted in a fixed position on the front frame 2. is there. The mounting plate 1
9D 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. 3 and 4, the fixing means has a fixing frame 20 arranged above the battery 15 from the rear side, and only the left and right central portions of the front end of the battery 15 are lowered. A pressing member 21 having a pressing portion 21A for pressing the pressing member 21 is provided, and an operating unit for operating and fixing the pressing member 21 in a pressing action posture is provided.

The fixed frame 20 is composed of a pair of left and right support members 20A made of plate material fixedly connected to the loading plate portion 19C of the mounting table 19 in a vertical orientation, and a horizontal support frame member 20B installed over their upper ends. In other words, mounting base 1
One frame structure fixed to the front frame 2 is constituted by the fixed frame 20 and the mounting base 19.

The horizontal frame body 20B has an L-shaped cross section having a vertically oriented plate portion and a horizontally oriented plate portion connected to the upper end thereof. That is, it is made of an angle material.

The pressing member 21 has a horizontal axis a1 on the left and right sides.
By vertically swinging around, it is possible to switch between the holding action posture and the holding release posture which allows the battery 15 to be detached from the mounting base 19 to the upper front side, and the front and rear and left and right positions are regulated. And is attached to the fixed frame 20.

More specifically, the retainer 21 has two bearing portions 2 formed at two positions spaced apart from each other in the left-right direction in the vertically facing plate portion of the horizontal frame body 20B of the fixed frame 20.
A pair of left and right support legs 21 that are vertically swingably supported around the left and right lateral axis a1 via pins 21B.
C and the pressing portion 21A connected to the tip (front end) thereof
The pressing portion 21A has a U-shaped plan view, and includes a pin 21B, a support leg 21C, and a pressing portion 21.
A is integrally formed by bending one rod-shaped body.

By vertically swingably attaching to the support portion 22, the position in the front-back and up-down directions with respect to the fixed frame 20, that is, the mounting base 19, is restricted, and the support leg 2 is supported.
The contact of 1C with the support portion 22 restricts the position in the left-right direction with respect to the mounting table 19.

The support portion 22 is a horizontal frame body 20B.
It is formed by stamping on the vertically oriented plate portion.

The operating means is a means for acting on one portion of the holding portion 21A of the holding tool 21, and specifically, the front left and right center portion of the front stopper plate portion 19B of the mounting table 19 is moved forward. A pulling bolt 25 is provided for pulling the pressing portion 21A toward the bulging portion 24 and pressing the pressing portion 21A against the upper surface of the battery 15 when the wing nut 23 is inflated and tightened by screwing.

The lower end of the pull bolt 25 is mounted on the mounting table 1.
9 is formed in a hook portion 25a for inserting into the through hole formed in the bulging portion 24 and engaging with the bulging portion 24 so as to prevent upward movement with respect to 9 and rotation around the axis thereof. , The upper end penetrates the gap formed between the facing portions of the U-shaped pressing portion 21A in a vertical posture, and, with the hook portion 25a engaged with the bulging portion 24, through the seat crow 26. It is formed on a screw portion 25b for screwing the wing nut 23 so as to push the pressing portion 21A downward. That is, the pull bolt 25 is
5a is engaged with the bulging portion 24 and the pressing portion 2
By abutting on the connecting portion of the pressing portion 21A in a state of penetrating the gap of 1A, the forward swinging swing of the hook portion 25a which is fulcrum at the engaging portion to the bulging portion 24 is prevented, and the forward swinging prevention is prevented. When the battery 15 comes into contact with the upper front surface of the battery 15 in this state, the wing nut 23 is screwed into the threaded portion 25b to prevent the battery 15 from falling forward when the pressing portion 21A presses the front end portion of the upper surface of the battery 15 downward. In addition, when the wing nut 23 is disengaged from the screw portion 25b, the retainer 21 is disengaged from the retainer portion 21A with the swinging of the retainer 21 to the release position, and the engagement portion with the bulge portion 24 is used as a fulcrum. By falling forward and swinging,
The front surface of the battery 15 mounted on the mounting table 19 is opened so that the battery 15 can be taken out forward.

A procedure for mounting and fixing the battery 15 on and from the mounting base 19 and removing the battery 15 will be described below.

For mounting and fixing, (1) the hook portion 25a of the pulling bolt 25 is engaged with the bulging portion 24, and the battery 15 is mounted on the mounting base 19, (2) the pulling bolt 25 is fixed to the bulging portion 24. (3) A work of oscillating the engaging portion as a fulcrum and oscillating the pressing member 21 in a pressing action posture so that the pulling bolt 25 penetrates into the gap of the pressing portion 21A. (3) The screw portion 25b of the pulling bolt 25 It is performed by sequentially tightening and screwing the wing nut 23 on.

On the other hand, as for taking out, (1) the work of detaching the wing nut 23 from the screw portion 25b, (2) the work of swinging the holding tool 21 in the holding release posture to detach the pull bolt 25 from the holding portion 21A. , (3) work of pulling the pulling bolt 25 forward and swinging it to detach the battery 15 from the mounting base 19 in the state where the front of the battery 15 is opened.

The cover structure for covering the engine room 13 will be described. The bonnet 27 covering the upper surface, front surface, and left and right side surfaces of the upper part of the engine room 13 and the lower part of the lower part of the engine room 13 behind the battery installation part. A pair of left and right side covers that cover the left and right side surfaces of the rear part
8 and a front cover 29 that covers the front surface and the left and right side surfaces of the front battery installation portion of the lower side portion.

The bonnet 27 is placed in a horizontally closed posture by swinging up and down around a laterally-oriented horizontal axis X with the rear end as a fulcrum, and in an open posture in which the front end is located diagonally forward and upward with respect to the rear end. It is switchable, is mounted on the rear frame 9 so as to be vertically swingable, and has the headlamp 16 incorporated in the front portion. Then, the front end portion is held in the closed posture in a state where it is loaded on the horizontal frame body 20B of the fixed frame 20 in the frame structure. The side cover 28 is for opening and closing the side surface of the engine room 13 by being attached and detached, and the front cover 29 is also for opening and closing the front portion of the engine room 13 by being attached and detached. Between the radiator 14 and the engine 3, a suction-type radiator fan 30 that sucks air from the front through the radiator 14 is arranged.

[Other Embodiments] The retainer 21 and the operating means constituting the fixing means may be constructed as follows. <No. 1> As shown in FIGS. 5 and 6, the pressing member 21 can be switched between a pressing action position and a pressing release position by vertically swinging around the laterally-oriented horizontal axis a1 as in the embodiment. It is attached to the pillar body 20A of the fixed frame 20 in a state in which front and rear and left and right positions are restricted.

More specifically, the retainer 21 is a support portion 22 formed on the support column 20A of the fixed frame 20 and is supported by the support portions 22 so as to be swingable up and down about the left and right lateral axis a1 via the axis 21D. The support leg 21C and the pressing portion 21A connected to the tip end of the support leg 21C. The shaft 21D and the support leg 21C have two rod members bent in an L shape, and one rod member portion overlaps with the other rod member. The bar portions are joined to each other so that they are aligned with each other.
1A is configured by a member having an L-shaped cross-section that presses a portion of the front end of the upper surface of the battery 15 having a set front-rear width in the pressing action posture and abuts on the upper front surface of the battery 15. That is, the pressing portion 21A moves to the front of the upper portion of the battery 15 (that is, by contacting the upper front surface of the battery 15 in the pressing action posture).
The battery 15 is prevented from falling forward.

Further, both ends of the shaft 21D are formed into stopper portions 21S which are bent into an L shape and come into contact with the support portion 22 in a laterally positioned state. The support portion 22 of the column body 20A is configured as a notch into which the shaft 21D can be inserted from above and which rotatably receives and supports the inserted shaft 21D around the left and right laterally extending axial core a1. That is, the pressing tool 21 is detachable from the fixed frame 20.

The operating means is formed by bending a ring-shaped engaging portion 21E at the end of the stopper portion 21S, and
A has one end in the longitudinal direction of the hook bolt 21F supported vertically swingably about the laterally-oriented lateral axis a2, and the other end in the longitudinal direction of the hook bolt 21F is inserted into the engaging portion 21E, and the hook thereof is The wing nut 23 is screwed onto the insertion end of the bolt 21F.

That is, the wing nut 23 is attached to the hook bolt 2
By tightening and screwing into 1F, the engaging portion 21E is pressed downward and the stopper portion 21S is swung downward, so that the pressing tool 21 is swung to a pressing action position and fixed, and the wing nut 23 is fixed. By separating from the hook bolt 21F, the pressing tool 21 is configured to be allowed to separate from the column body 20A.

<No. 2> The pressing member 21 is shown in FIGS.
As shown in FIG.
By attaching and detaching the butterfly bolt 31 to and from B, it is possible to switch between a holding action posture and a holding release posture, and a pair of U-shaped left and right mounting portions that are attached to and detached from the horizontal frame body 20B via the butterfly bolt 31. 21G, support legs 21C connected to the mounting portions 21G, and one holding portion 21A fixed between the tips of both support legs 21C.

The mounting portion 21G and the support leg 21C are integrally formed from a bent product of a rod-like body, and the holding portion 21A is provided with a set front-back width portion of the front end portion of the upper surface of the battery 15 in the holding action posture. It is composed of a member having an L-shaped cross section which is pressed down and abuts on the upper front surface of the battery 15. In other words, the pressing portion 21A prevents the forward movement of the upper portion of the battery 15 (that is, the frontward tilting of the battery 15) by contacting the upper portion of the front surface of the battery 15 in the pressing action posture.

The operating means is in an oblique position in which the mounting portion 21G is in contact with the horizontal frame body 20B only at the upper end and the lower end is separated from the horizontal frame body 20B in a state where the pressing tool 21 is positioned in the pressing action position. Mounting part 2 so that it is located at
By forming 1G, a downward swinging force with the upper end of the mounting portion 31 as the fulcrum R is applied to the pressing tool 21 as the butterfly bolt 31 is tightened, and the pressing portion 21A is pressed.

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]

[Figure 1] Side view of work vehicle

FIG. 2 is a side view of the main part.

FIG. 3 is an enlarged vertical side view of a main part.

FIG. 4 is a perspective view of a main part (battery support structure)

FIG. 5 is an enlarged side view of a main part showing another embodiment.

FIG. 6 is a perspective view of a main part showing another embodiment.

FIG. 7 is an enlarged side view of a main part showing another embodiment.

FIG. 8 is a perspective view of a main part showing another embodiment.

FIG. 9 is a side view of a main part showing a conventional technique.

FIG. 10 is a plan view of a main part showing a conventional technique.

[Explanation of symbols]

 15 Battery 15a Terminal 19 Mounting base 20 Fixed frame 21A Holding part 21 Holding tool

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Seiichi Nakanishi 64 Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Factory Co., Ltd.

Claims (3)

[Claims] 1. A battery (15) is mounted on a mounting table (19) in a horizontal position in which terminals (15a) are arranged in the left-right direction,
A battery supporting structure for a working vehicle, comprising fixing means for acting on the front end portion of the upper surface of the battery (15) to press and fix the battery (15) to the mounting base (19), which comprises the fixing means. A holding frame (20) is arranged above the battery (15) from the rear side, and has a holding portion (21A) for holding down only the left and right center portions of the front end portion of the upper surface of the battery (15). The tool (21) is attached to the fixed frame (20) in a state in which it can be switched between a holding action posture and a holding release posture, and the front and rear and left and right positions are restricted, and the holding action (21) is held. A battery support structure for a work vehicle provided with an operating means for operating and fixing the posture. 2. The battery supporting structure for a work vehicle according to claim 1, wherein the pressing member (21) is attached to the fixed frame (20) at two positions spaced apart in the left-right direction. 3. A retainer (21) as the operating means.
The work vehicle battery support structure according to claim 1 or 2, wherein means for acting on one portion of the pressing portion (21A) is provided.