CN104670129A - utility vehicle - Google Patents

Abstract

A utility vehicle (1), which is equipped with: a main frame (11) for forming a frame of a chassis; a ROPS (roll over vehicle) provided at a middle portion of the main frame in the front-rear direction of a vehicle body so as to surround a cabin (5) protective structure) (6); a seat (7) arranged inside the ROPS; an engine (20) arranged under the seat; and an engine (20) arranged under the seat and on the outside of the engine in the width direction of the vehicle Batteries (50).

Description

utility vehicle

technical field

The present invention relates to utility vehicles, and in particular, to a structure for arranging batteries in a utility vehicle.

Background technique

Utility vehicles are designed to travel off-road and for a variety of purposes as recreational vehicles or agricultural work vehicles.

For example, in a utility vehicle according to the conventional art disclosed in Japanese Patent No. 3754016, a battery for supplying electric power to start an engine or operate electric equipment of the vehicle is arranged above the body frame and near the lower side of the driver's seat.

In a utility vehicle, an engine thereof is generally installed inside an engine room disposed under a cabin provided between front and rear wheels of a vehicle body frame. Furthermore, since engine accessories such as a starter motor and an alternator are arranged near the engine, the engine accessories are electrically connected to the battery via a power cable.

In the above configuration, since the distance between the battery arranged on the front side in the front-rear direction of the vehicle body and the engine accessory arranged in the middle part in the front-rear direction of the vehicle body is large, the length of the power cable necessarily becomes long. As the length of the power cord becomes longer, more time and labor are required to handle the power cord.

Contents of the invention

The present invention was conceived in view of the above problems. An object of the present invention is to provide a structure for arranging a battery in a utility vehicle so that the length of a power supply cable through which a large current flows for electrically connecting the battery to engine accessories can be shortened.

In order to achieve the above objects, the present invention provides a multipurpose vehicle equipped with: a main frame for forming a frame of a chassis; a rollover protection structure, or ROPS, provided on a body of the main frame the middle part in the front-rear direction so as to surround the vehicle compartment; the seat, the seat is arranged inside the ROPS; the engine, the engine is arranged under the seat; and the battery, the battery is arranged Below the seat and outside of the engine in the width direction of the vehicle.

(1) With the configuration according to the present invention, since the engine and the battery are arranged under the same seat, the length of the power supply cable can be shortened.

(2) Since the battery is arranged under the rear seats among the seats arranged in two rows, the space in the vehicle interior can be effectively used.

(3) Since the main battery is fixed to the chassis by the fixing bracket, it is facilitated to attach/detach the main battery to/from the chassis.

(4) Since the gap for drainage is provided between the main frame and the bottom plate, water accumulated on the bottom plate can be drained.

(5) Since the sub-battery is arranged behind the main battery and in the vicinity of the main battery, more power can be supplied and cooperation between the main battery and the sub-battery is facilitated.

(6) Since the battery is arranged inside the storage box, the battery can be placed in a clean environment.

(7) Since the control unit for performing current control between the sub-battery and the main battery is arranged inside the storage box, it is possible to arrange the control unit in a clean environment.

(8) Since the storage box has airtightness, the storage box can be placed in a cleaner environment.

(9) Since the lower end of the second strut is bent into a substantially L-shape, it facilitates mounting/detachment of the second strut from the base plate and prevents rotation of the second strut.

(10) Since the first strut has an angled substantially U-shaped shape in cross-section in the horizontal direction, the mechanical strength of the first strut can be improved.

Description of drawings

FIG. 1 is a perspective view showing a utility vehicle according to the present invention, viewed obliquely from the front right thereof;

2 is a plan view showing the internal structure of a storage box and an engine room in a utility vehicle;

3 is a perspective view viewed downward from obliquely right front, showing a state where the front cover and the upper cover are removed from the storage box;

Fig. 4 is a right side view showing the storage box;

FIG. 5 is a perspective view showing the storage box shown in FIG. 4 as seen obliquely from the front right;

Fig. 6 is a perspective view viewed obliquely from the front right, showing a state in which the cover is removed from the box;

Fig. 7 is a perspective view showing the bottom of the storage box and the engine room, viewed from obliquely front right;

Fig. 8 is a perspective view showing the bottom plate of the storage box and its surrounding area, viewed from the oblique right rear direction;

Fig. 9 is a perspective view showing the battery fixing structure inside the storage box, viewed downward from obliquely right front;

Fig. 10 is a right side view showing a main portion of the storage box;

Fig. 11 is a sectional view taken along line XI-XI in Fig. 10;

Fig. 12 is a sectional view taken along line XII-XII in Fig. 10;

13 is a perspective view viewed downward from obliquely front right, showing a modification in which a sub-battery is installed; and

FIG. 14 is a perspective view showing a modification shown in FIG. 13 , viewed downward from an oblique right rear direction.

Detailed ways

Embodiments according to the present invention will be described below with reference to the accompanying drawings. The front-rear direction, left-right direction, and up-down direction used in this specification are directions observed by a driver seated in the utility vehicle 1 .

FIG. 1 is a perspective view showing a utility vehicle 1 according to the present invention, as seen obliquely from the front right thereof. The utility vehicle 1 is mainly designed to run not only on grass, gravel, and sand but also off-roads such as unpaved mountain and forest roads, muddy tracks, rocky ground, and the like.

(Overall structure of utility vehicle 1)

The overall structure of the utility vehicle 1 will be described with reference to FIGS. 1 and 2 .

As shown in FIG. 1 , a utility vehicle 1 is a four-wheeled vehicle equipped with a pair of left and right front wheels 3 at the front of a body frame 10 and a pair of left and right rear wheels 4 at the rear of the body frame 10 . A utility vehicle 1 is equipped with a cabin 5 surrounded by a cabin frame (ie, ROPS (Rollover Protective Structure) 6 ) between a pair of left and right front wheels 3 and a pair of left and right rear wheels 4 at an intermediate portion in the front-rear direction of the vehicle body. . The front compartment 5f and the rear compartment 5r are respectively formed on the front side and the rear side of the compartment 5 in the front-rear direction of the vehicle body. Front seats 7f and rear seats 7r allowing occupants to sit are provided in the front compartment 5f and rear compartment 5r, respectively, whereby the seats 7 of the utility vehicle 1 have a two-row seat structure. The ROPS 6 is made of a circular metal pipe and is formed such that its front and rear, left and right, and upper parts are open. The engine cover 2 is provided above the pair of left and right front wheels 3 . In the space inside the hood 2, for example, a radiator (not shown) and other constituent parts are arranged. A steering wheel and an instrument panel, not shown, are arranged at the front end portion of the front compartment 5f in the front-rear direction of the vehicle body. The loading platform 8 is provided behind the rear compartment 5r in the front-rear direction of the vehicle body, and extends rearward from a position near the rear of the rear seat 7r above the pair of left and right rear wheels 4 . The storage box 30 is arranged below the rear seat 7r and on the right side in the width direction of the vehicle.

FIG. 2 is a plan view showing a state where the seat portion of the rear seat 7r (shown in FIG. 1 ) and an upper cover (not shown) installed under the seat portion are removed. The upper cover is a plate-like member made of metal, which is installed under the seat portion of the rear seat 7r (shown in FIG. 1 ) and extends in the width direction of the vehicle, thereby constituting the upper surface of the engine room 21. Surface and part of the upper surface of the storage space 31 . The engine room 21 is provided below the rear seat 7r and the loading platform 8 shown in FIG. 1 , and at a position close to a driver's seat provided on the left side in the width direction of the vehicle. The engine 20 is arranged in an engine room 21 . A V-belt type continuously variable transmission (not shown) is installed on the left side of the engine 20 .

(Structure of storage space 31)

The configuration of the storage space 31 will be described with reference to FIGS. 2 and 3 .

As shown in FIG. 2 , storage space 31 formed by storage box 30 is provided below rear seat 7 r (shown in FIG. 1 ) and on the opposite side (right side) of engine room 21 in the vehicle width direction. An air cleaner 70 as equipment, a part of an intake duct 25 for a V-belt continuously variable transmission, and a plurality of ignition coils 22 are arranged in the upper side space of the storage space 31 . As a result, a part of the engine room 21 and the storage space 31 are arranged below the rear seat 7r (shown in FIG. 1 ) in the width direction of the vehicle.

In FIG. 2 , the air filter 70 has a two-part structure including a main body box 71 and an air intake box 72 , and the flange of the main body box 71 and the flange of the air intake box 72 are detachably connected to each other by a plurality of clips 73 . Inside the air cleaner 70, a filter (not shown) is stored. An engine intake pipe 76 to be inserted into an engine intake pipe opening 77 b (shown in FIG. 3 ) extends from the main body case 71 . An engine intake conduit 74 extends from air box 72 . The engine intake duct 74 first extends toward the vehicle widthwise outer side (right side) and then further extends while being bent toward the vehicle widthwise inner side (left side) near the ignition coil 22 . In addition, the intake duct 25 for the V-belt type continuously variable transmission is inserted into the transmission duct opening 77c (shown in FIG. 13 ) and further extended in a state of being bent toward the vicinity of the ignition coil 22 .

As shown in FIG. 3 , in the upper side space of the storage space 31 , a suction opening 75 serving as a tail end of an engine intake duct 74 opens downward. Furthermore, the suction opening 26 serving as the tail end of the intake duct 25 opens downward. Therefore, both the suction opening 75 of the air cleaner 70 and the suction opening 26 of the intake duct 25 for the V-belt type continuously variable transmission are collectively arranged in the storage space 31, whereby clean air is sucked into the air filter. Cleaner 70 and V-belt CVT. In addition, a main battery 50 is arranged in a lower space of the storage space 31 . A structure for mounting the main battery 50 will be described in detail later.

In FIG. 3 , the storage space 31 and the engine room 21 are partitioned by a partition wall 77 . The partition wall 77 is, for example, a plate-shaped member made of rubber material. The partition wall 77 is provided with a plurality of openings to allow communication between the storage space 31 and the engine room 21 . For example, an engine intake pipe opening 77 b and a transmission duct opening 77 c (shown in FIG. 13 ) are formed in the partition wall 77 . Further, an ignition wire opening 77 f for allowing insertion of the ignition wire 22 a of the ignition coil 22 shown in FIG. 2 is formed in the upper portion of the partition wall 77 .

(Structure of storage box 30)

The configuration of the storage box 30 will be described with reference to FIGS. 4 and 5 .

As shown in FIG. 4 , the storage box 30 has a box shape surrounded by a box body 89 and a cover 40 and is configured to have airtightness. The box body 89 is composed of the side cover 32, the right side portion of the front cover 33 (shown in FIG. 5 ), the right side portion of the upper cover (not shown), the partition wall 77 (shown in FIG. 3 ) and the bottom plate. 17 compositions.

In FIG. 4, the side cover 32 has a three-dimensional shape including a first side wall 32a, a rear wall 32b, and a second side wall 32c, and is molded with resin. The first side wall 32a extends in the front-rear direction of the vehicle body from the rear end portion of the front seat 7f (shown in FIG. 1 ) toward the vicinity of the front end of the right rear wheel 4 (shown in FIG. 1 ). The side cover 32 is mounted on the side frame 13 (shown in FIG. 8 ) using mounting screws 13c that are connected to a plurality of screw holes 13b (shown in FIG. 8 ) formed in the outer surface 13a of the side frame 13 (shown in FIG. shown in Figure 8) threaded engagement. In the upper portion of the first side wall 32a, a recess 39 is formed opposite to the recess 47 formed at the lower side 44b of the side wall 44 and allows the side buckle 83 to fit. An upper end 36 b is formed at an upper edge of the first side wall 32 a of the side cover 32 .

In FIG. 4 , the rear wall 32 b of the side cover 32 extends rearward in the front-rear direction of the vehicle body from the first side wall 32 a of the side cover 32 , thereby having a structure covering the right rear wheel 4 (shown in FIG. 1 ). The shape of the upper front. The second side wall 32c extends forward in the front-rear direction of the vehicle body from the inner end of the rear wall 32b. In the front portion of the second side wall 32c, two engagement through-holes 87b penetrating in the width direction of the vehicle are formed so as to be separated from each other in the up-down direction.

As shown in FIG. 5 , the front cover 33 is a plate-shaped member made of resin, and the front cover 33 is positioned under the front side of the rear seat 7 r (shown in FIG. 1 ) and extends in the width direction of the vehicle. , thereby constituting the storage space 31 and the front part of the engine room 21 shown in FIG. 2 . In addition, a recess 38 is formed at a substantially central portion of the right side end 35b of the front cover 33 to allow the front buckle 81 to be fitted. A left front portion 41 a of the front wall 41 of the cover 40 is provided with an inner side end 35 a in contact with a right side end 35 b of the front cover 33 . The inner side end 35 a is in contact with the right side end 35 b, thereby forming the separation line 35 . Further, at the cover 40 , the lower side portion 44 b of the side wall 44 and the lower right portion 41 c of the front wall 41 are in contact with the first side wall 32 a of the side cover 32 , thereby forming the separation line 36 . In addition, since the outer contour surfaces of the lower side portion 44b, the right lower portion 41c, and the first side wall 32a are flatly aligned with each other, the aesthetic appearance of the cover 40 and the side cover 32 is good, and the cover 40 and the side cover 32 are configured as Design components.

The upper cover (not shown) is a plate-like member made of metal, and the upper cover is positioned below the rear seat 7r (shown in FIG. 1 ) and extends in the width direction of the vehicle, thereby constituting A part of the upper surface of the engine room 21 (shown in FIG. 2 ) and a part of the upper surface of the storage space 31 (shown in FIG. 2 ). In other words, the right side portion of the upper cover overlaps with the storage space 31 (shown in FIG. 2 ), thereby constituting a part of the box body 89 (shown in FIG. 4 ).

(Structure of cover 40)

The configuration of the cover 40 will be described with reference to FIGS. 3 and 4 .

The cover 40 has a three-dimensional solid shape as shown in FIG. 3 , and has a front wall 41 , a rear wall 42 , an upper wall 43 and side walls 44 as shown in FIG. 4 . The cover 40 is molded with resin.

As shown in FIG. 3 , the front wall 41 of the cover 40 is provided with a left front portion 41a extending in a substantially vertical direction, a rearwardly inclined upper right portion 41b and a right lower portion 41c extending in a substantially vertical direction. The left front portion 41a of the front wall 41 of the cover 40 is provided at the inner side end 35a with two engaging protrusions 49a separated from each other in the up-down direction. The engagement protrusion 49 a protrudes inward (to the left in the width direction of the vehicle).

In FIG. 3 , the upper wall 43 of the cover 40 is provided with a left upper portion 43a extending from the upper end of the left front portion 41a of the front wall 41 and having a partially recessed stepped recess, and is also provided with a right upper portion 41b of the front wall 41. The upper end, the upper end of the upper side portion 44a of the side wall 44 and the upper end of the rear wall 42 are connected to the upper right portion 43b. The left upper portion 43a has at its left end an inner side end 43d that contacts a right side end of an upper cover (not shown). A recessed handle portion 45 is provided at the lower portion of the left front portion 41a of the cover 40 so that the cover 40 can be easily held when the cover 40 is attached and detached. A recess 46 is formed at a substantially central portion of the left front portion 41a of the front wall 41 and its left side in the vehicle width direction to allow a front buckle 81 (shown in FIG. 5 ) to fit.

As shown in FIG. 4 , the side wall 44 of the cover 40 is provided with an upper side portion 44 a bent rearward from a right front end of a right upper portion 41 b (shown in FIG. 3 ) of the front wall 41 and extending in a substantially vertical direction, and A lower side portion 44b bent backward from the right end of a right lower portion 41c (shown in FIG. 3 ) of the front wall 41 is also provided. A recess 47 is formed at a lower portion of the lower side portion 44b of the side wall 44 and at a substantially central portion thereof in the front-rear direction of the vehicle body to allow the side buckle 83 to fit. Further, the rear wall 42 of the cover 40 is bent inwardly (to the left side in the width direction of the vehicle) from the right rear end of the upper side portion 44a of the side wall 44, and extends in a substantially vertical direction. The lower side portion 44b of the side wall 44 is provided with a lower side end 36a in contact with the upper side end 36b of the first side wall 32a. The upper side end 36b is in contact with the lower side end 36a, whereby the separation line 36 is formed.

In FIG. 4, the rear wall 42 of the cover 40 is provided at its inner side end 37a with two hook-shaped engaging protrusions 49c spaced apart from each other in the up-down direction. Each hook-shaped engaging protrusion 49c has a substantially L-shape. In the case where the cover 40 is mounted on the side cover 32, the inner side end 37a of the rear wall 42 of the cover 40 and the upper side end 32e (shown in FIG. 6 ) of the rear wall 32b of the side cover 32 are formed respectively. Contact with the rib 87 (shown in FIG. 6 ) at the outer side end 32d (shown in FIG. 6 ) of the second side wall 32c of the side cover 32, whereby the hook-shaped engaging protrusions 49c are respectively formed on the second side wall. 32c in the engaging through-hole 87b, so that it is almost impossible to disassemble. The inner side end 37a is in contact with both the outer side end 32d (shown in FIG. 6 ) of the side cover 32 and the upper side end 32e (shown in FIG. 6 ) of the rear wall 32b of the side cover 32 , thereby forming a separation line 37 .

(Internal structure of the storage box 30)

The internal configuration of the storage box 30 will be described with reference to FIGS. 6 and 9 .

In FIG. 9, a storage space 31 formed in a storage box 30 (shown in FIG. 5) has a front storage space 31f and a rear storage space 31r formed rearward of the front storage space 31f in the front-rear direction of the vehicle body. The lower side space of the front storage space 31f is configured such that the main battery 50 (shown in FIG. 6 ) can be installed therein. The lower side space of the rear storage space 31r is configured such that a sub battery 90 (shown in FIGS. 13 and 14 ) can be stored therein as an option as described later. Therefore, equipment such as the main battery 50 (shown in FIG. 6 ) stored in the storage box 30 (shown in FIG. 5 ) is arranged under the rear seat 7 r (shown in FIG. 1 ) and between the engine 20 (shown in FIG. 1 ). shown in FIG. 2 ) on the outer side (the right side in the width direction of the vehicle).

In addition to the engine intake pipe opening 77b (shown in FIG. 3 ), as shown in FIG. 6 , an oil level gauge opening 77 a is formed in the partition wall 77 . The oil level gauge opening 77a is configured such that a part of the grip of the oil level gauge 28 is visible on the side where the storage space 31 is located as a device passing through the oil level gauge opening 77a. Further, a negative electrode opening 77 d and a positive electrode opening 77 e for the main battery 50 are respectively formed on the front side of the partition wall 77 in the front-rear direction of the vehicle body.

(joint structure between case 89 and cover 40)

The engagement structure between the case 89 and the cover 40 (shown in FIG. 5 ) will be described with reference to FIG. 6 .

In FIG. 6 , the cover 40 (shown in FIG. 5 ) is configured to be detachable from the side cover 32 and the front cover 33 . When the cover 40 (shown in FIG. 5 ) is removed from the case body 89 , a large opening 30 a having a three-dimensional shape is formed in the upper right portion of the case body 89 . Therefore, various operations such as inspection and maintenance of the main battery 50 fixed by the fixing bracket 60 , filter replacement of the air cleaner 70 , and inspection of the amount of engine oil by the oil level gauge 28 can be easily performed.

In FIG. 6, a right side end 35b is formed at the edge of the outer side (the right side in the width direction of the vehicle) of the front cover 33, and a right side end 35b is formed at the rear of the right side end 35b in the front-rear direction of the vehicle body. Ribs 86 protrude outward (to the right side in the width direction of the vehicle) and upward, respectively, from the right side end 35b. In other words, the right side end 35b of the front cover 33 has the rib 86 as an edge. Further, at the right side end 35b of the front cover 33, engaging grooves 86b spaced apart from each other in the up-down direction are formed in a state where the recessed portion 38 is provided between the engaging grooves 86b. The engagement groove 86b is configured such that when the cover 40 is mounted on the front cover 33 as shown in FIG. When the right-side ends 35b of the two sides are in contact, the engaging protrusions 49a (shown in FIG. 3 ) are respectively inserted into the engaging grooves 86b.

In FIG. 6 , on the inner side (the left side in the width direction of the vehicle) of the upper side end 36b of the first side wall 32a of the side cover member 32 , there are formed along the upper side end 36b protruding upward from the upper side end 36b respectively. And the rib 85 protrudes forward in the front-rear direction of the vehicle body. In other words, the upper end 36b of the first side wall 32a has the rib 85 as an edge. At the upper side end 36b, there are formed two engaging grooves 85b spaced apart from each other in the front-rear direction of the vehicle body in a state where the concave portion 39 is provided between the two engaging grooves 85b.

As shown in FIG. 11 , the lower side portion 44b of the side wall 44 is provided at the lower side end 36a with two engaging protrusions 49b spaced apart from each other in the front-rear direction of the vehicle body, and the engaging protrusions 49b protrude downward. The engagement protrusions 49b are configured as follows: When the cover 40 is mounted on the side cover 32 and the lower side end 36a of the lower side part 44b is in contact with the upper side end 36b of the side cover 32, the engagement protrusions 49b are respectively inserted into the upper side ends 36b formed on the first side cover 32. Engagement groove 85b in side wall 32a.

Returning to FIG. 6 , part of the upwardly protruding rib 85 formed among the ribs 85 at the upper side end 36 b has a step in the width direction of the vehicle. In other words, in each engaging groove 85b and its peripheral area, the width of the upper side end 36b is made larger, and a concave rib 85a is formed that is depressed to the inner side (the left side in the width direction of the vehicle) of the upper side end 36b . The lower side portion 44b of the side wall 44 of the cover 40 shown in FIG. 4 has a stepped shape (not shown) corresponding to the stepped shape of the rib 85 .

In FIG. 6 , at an upper side end 32e located in front of the rear wall 32b, a rib 87 is formed that bends upward along a folding line in the width direction of the vehicle and protrudes upward from the rear wall 32b. At the front portion of the second side wall 32c, a rib 87 protruding to the outside (the right side in the width direction of the vehicle) is formed bent to the outside (the right side in the width direction of the vehicle) and extending from the second side wall 32c to At the outer end 32d on the outer side (the right side in the width direction of the vehicle). Therefore, in the side cover 32, the upper side end 32e of the rear wall 32b and the outer side end 32d of the second side wall 32c have the rib 87 as an edge.

As a result, as shown in FIGS. 4 and 5, when the cover 40 is installed on the box body 89, the inner side end 35a, the lower side end 36a, and the inner side end 37a of the cover 40 are in contact with the right side end 35b, the side end 35b, and the side end of the front cover 33, respectively. The upper side end 36b of the cover 32 is in contact with the outer side end 32d (shown in FIG. 6 ), maintaining the airtightness of the storage box 30 . As shown in FIGS. 4 and 5 , the dividing lines 35, 36 and 37 are formed at the junction between the left front portion 41a of the front wall 41 and the front cover 33, the lower side 44b of the side wall 44 and the side cover 32, respectively. The junction between the first side walls 32a and the junction between the rear wall 42 and the second side wall 32c. In addition, as shown in FIG. 6, protruding ribs 86, 85, and 87 are formed along the partition lines 35, 36, and 37, respectively, thereby preventing water from entering the storage tank without separately using a sealing member such as packing or the like. 30 (shown in Figure 4). As shown in Figures 4 and 5, when the cover 40 is installed on the box body 89, the inner side end 43d (shown in Figure 3 ) of the left upper part 43a is in contact with the upper cover (not shown) at the upper wall 43 of the cover 40. ) is in contact with the right side end, thereby maintaining the airtightness of the storage box 30.

(A connection fixing structure utilizing the connection fixing members 80 and 82)

A connection fixing structure using the connection fixing members 80 and 82 will be described with reference to FIG. 5 .

As shown in FIG. 5, the front buckle 81 used as the connection fixing member 80 is composed of a first member having a hook recess and a hook-shaped end engaging portion engaged with the hook recess and a locking portion configured to have a locked state or an unlocked state. of the second component. The first member is caulked in a state of being fitted in the recessed portion 46 , and the second member is caulked in a state of being fitted in the recessed portion 38 opposite to the recessed portion 46 . The cover 40 is connected and fixed to the front cover 33 by the engagement of the end engaging portion of the second member mounted on the front cover 33 with the hook recess of the first member mounted on the cover 40 . In addition, the front buckle 81 is substantially flush with the outer contour surfaces of the front cover 33 and the cover 40 so as not to protrude from the respective outer contour surfaces.

Similarly, the side buckle 83 serving as the connection fixing member 82 is composed of a first member having a hook recess and a second member having a hook-shaped end engaging portion engaged with the hook recess and a locking portion configured to have a locked state or an unlocked state. Component composition. The first member is caulked in a state fitted into the recess 47 , and the second member is caulked in a state fitted in the recess 39 opposite to the recess 47 . The cover 40 is connected and fixed to the side cover 32 by the engagement of the end engaging portion of the second member mounted on the side cover 32 with the hook recess of the first member mounted on the cover 40 . In addition, the side buckle 83 is substantially flush with the outer contour surfaces of the side cover 32 and the outer contour surface of the cover 40 so as not to protrude from the respective outer contour surfaces.

In FIG. 5 , since the cover 40 is connected and fixed to the box body 89 by using the front buckle 81 and the side buckle 83 , it is possible to prevent the cover 40 from falling and improve the sealing performance of the storage box 30 . In addition, since the front buckle 81 is installed in the recesses 38 and 46 and since the side buckle 83 is installed in the recesses 39 and 47, the front buckle 81 and the side buckle 83 are configured to cooperate with the cover 40, the side cover 32 and the front The outer contour surface of the cover 33 is substantially flush without protruding from said outer contour surface. Therefore, the front buckle 81 and the side buckle 83 can hardly be released, and the appearance aesthetics of the storage box 30 is good, whereby the storage box 30 is configured as a design member.

(Structure for mounting the floor plate 17 to the vehicle body frame 10)

A structure for mounting the floor panel 17 to the vehicle body frame 10 will be described with reference to FIGS. 7 and 8 .

As shown in FIG. 7 , the vehicle body frame 10 is equipped with a main frame 11 located at the lower portion of the utility vehicle 1 (shown in FIG. 1 ) and extending in the front-rear direction of the vehicle body. A side frame 13 extending in the front-rear direction of the vehicle body, a cross member 12 for connecting the left and right main frames 11 , and a cross member 14 for connecting the main frame 11 and the side frames 13 . The floor plate 17 is installed between the main frame 11 and the side frame 13 and is arranged outside the engine 20 (on the right side in the width direction of the vehicle).

As shown in FIG. 8 , the floor panel 17 is a plate-shaped member made of metal and is supported by two support arms arranged apart from each other in the front-rear direction of the vehicle body. In the width direction of the vehicle, the floor panel 17 has a flat main surface 17b extending in a substantially horizontal direction and on which, for example, the main battery 50 is mounted, and also has an inclined surface 17c bent upward to the right to incline in the vicinity of the side frame 13 . On the front side of the main surface 17b in the front-rear direction of the vehicle body, a front surface 17a raised from the main surface 17b in a substantially vertical direction is formed. The support arm 15 is an angled tube extending in the width direction of the vehicle and configured to follow the shape of the bottom surface of the floor 17 . The support arm 15 is welded and fixed to the bottom surface of the main surface 17b and the inclined surface 17c. The bracket 16 is welded to the right side 11 a of the main frame 11 . Two through holes 19 a (shown in detail in FIG. 9 ) are formed in the bottom plate 17 near the main frame 11 and directly above the support arm 15 . The bottom plate 17 is fixed to the bracket 16 by passing the bolt 16a through the through hole 19a and through the mounting hole of the support arm 15 and the mounting hole of the bracket 16 and tightening the bolt with a nut 16b. The outer ends of the support arms 15 are respectively welded and fixed to the left sides of the side frames 13 (shown in FIG. 11 ).

As shown in FIG. 8 , on the rear side in the front-rear direction of the vehicle body of the main surface 17 b of the floor plate 17 , two mounting holes 17 g are arranged to be separated from each other in the width direction of the vehicle. A hole 64a is formed in the main surface 17b of the bottom plate 17 on the side where the side frame 13 is located. The bracket 18 is welded and fixed to the lower surface of the bottom plate 17 at the portion where the hole 64a is formed. In FIG. 8 , the bracket 18 has a substantially U-shaped shape that is oriented downward and angled in cross-section in the front-rear direction of the vehicle body, and has a shape extending in the width direction of the vehicle so as to be separated from each other in the front-rear direction of the vehicle body. The two flanges 18b.

As shown in FIG. 12 , hole 18 a of bracket 18 (shown in FIG. 8 ) is positioned to communicate with hole 64 a of bottom plate 17 . The second strut 62 has a shaft portion 62c, a male screw portion 62a at the upper end of the shaft portion 62c, and a bent portion 64 bent into a substantially L-shape at the lower end of the shaft portion 62c. The front end of the bent portion 64 of the second strut 62 is oriented toward the main frame 11 . As shown in FIG. 8 , the rotation of the bent portion 64 is restricted by the engagement of the bent portion 64 with the flange 18 b of the bracket 18 , whereby the flange 18 b serves as a means for blocking the rotation of the bent portion 64 . In addition, as shown in FIGS. 11 and 12 , a drainage gap 19 is formed between the left end of the bottom plate 17 and the right side 11 a of the main frame 11 to drain water from the inside of the storage tank 30 .

(Structure for mounting the main battery 50)

A structure for mounting the main battery 50 (shown in FIG. 6 ) on the bottom plate 17 will be described with reference to FIG. 9 .

In FIG. 9 , the first support 61 , the second support 62 and the bridge member 63 constitute a fixing bracket 60 for fixing the main battery 50 (shown in FIG. 6 ) to the bottom plate 17 . On the main surface 17b of the bottom plate 17, the first strut 61 is provided on the side where the main frame 11 is located, and the second strut 62 is provided on the side where the side frame 13 is located.

The first pillar 61 stands upright on the side where the front storage space 31f is located and is welded to the upper surface of the bottom plate 17 on the side where the main frame 11 is located. The first strut 61 has an angled substantially U-shape in cross-section in the horizontal direction, both flange faces of the first strut 61 are arranged to be separated from each other in the front-rear direction of the vehicle body, and the strut faces of the first strut 61 Arranged on the side where the side frame 13 is located. In an upper portion of the pillar surface of the first pillar 61, an engaging opening 65 having a substantially rectangular shape and being elongated in the front-rear direction of the vehicle body is formed. In the pillar surface of the first pillar 61, a plurality of circular holes for weight reduction are formed.

The bridging member 63 is a metal member for connecting the first strut 61 to the second strut 62 . The bridge member 63 has an angled substantially U-shape in cross-section in the front-rear direction of the vehicle body, and has two flanges 63 b extending in the width direction of the vehicle apart from each other in the front-rear direction of the vehicle body. A cutout portion 63c is formed on the side of the bridging member 63 where the main frame 11 is located. The cutout portion 63c is engaged with the engagement opening 65 of the first strut 61 . A bracket 63d for mounting the jig 58 is welded and fixed to the flange 63b on the front side in the front-rear direction of the vehicle body. A hole 63a (shown in FIG. 12 ) is formed on the side of the bridge member 63 where the side frame 13 is, and the male screw portion 62a of the second post 62 is inserted into the hole 63a (shown in FIG. 12 ). A plurality of grooves (not shown) for weight reduction are formed in the bridge body portion of the bridge member 63 .

The buffer rubber 67 is adhered to the upper surface of the main surface 17b of the bottom plate 17 with an adhesive. In addition, the buffer rubber 66 is bonded to the lower surface of the bridge member 63 with an adhesive. The main battery 50 is held between the buffer rubber 67 bonded to the upper surface of the bottom plate 17 and the buffer rubber 66 bonded to the lower surface of the bridge member 63 .

The power cable 54 for the negative electrode 51 (shown in FIG. 8 ) electrically connects the negative electrode 51 (shown in FIG. 8 ) of the main battery 50 (shown in FIG. 8 ) to the negative electrode lead-out terminal 57 . The power supply cable 54 for the negative pole 51 (shown in FIG. 8 ) has a terminal 55 detachably mounted on the negative pole 51 (shown in FIG. 8 ) on the side where the side frame 13 is located and on the side where the main frame 11 is located. The side has a round terminal 56 bolted to a negative lead-out terminal 57 . By inserting the power supply cable 54 for the negative electrode 51 (shown in FIG. 8 ) into a jig 58 made of resin and having a substantially ring shape, the approximate middle of the power supply cable 54 for the negative electrode 51 (shown in FIG. 8 ) The part is supported by the clamp 58. A power supply cable (not shown) for the positive pole is mounted on the positive pole (not shown) of the main battery 50 (shown in FIG. 8 ), and a protective cover 53 made of an insulating resin material is mounted so as to cover the positive pole and the power supply for the positive pole. cable terminals. The main power supply 50 (shown in FIG. 8 ) is arranged such that the positive electrode is on the side where the main frame 11 is located and so that the negative electrode 51 (shown in FIG. 8 ) is on the side where the side frame 13 is.

In the lower side space of the front storage space 31f, in a state where the main battery 50 (shown in FIG. 8 ) is placed on the main surface 17b of the bottom plate 17, the cutout portion 63c of the bridging member 63 is hooked to the first stay 61 The opening 65 is engaged, and then the bent portion 64 (shown in FIG. 8 ) of the second strut 62 is positioned relative to the bracket 18 (shown in FIG. 8 ). The male threaded portion 62a of the second stay 62 is inserted into the hole 63a (shown in FIG. 12 ) of the bridge member 63, and then the nut 62b is threadedly engaged with the male threaded portion 62a and tightened, whereby the main battery 50 (shown in FIG. 8) is held between the bottom plate 17 and the bridging member 63. The lower side space of the rear storage space 31r is configured such that a sub battery 90 (shown in FIG. 13 ) as described later can be installed therein as an option.

(Arrangement of sub-battery 90)

A modification in which the sub battery 90 is mounted will be described with reference to FIGS. 13 and 14 .

The main battery 50 is initially installed in the utility vehicle 1 (shown in FIG. 1 ). However, the utility vehicle 1 is constructed so that the sub-battery 90 for supplying electric power to electric equipment additionally equipped as an option can be mounted. The sub-battery 90 is arranged rearward of the main battery 50 in the front-rear direction of the vehicle body in the vicinity of the main battery 50 . Since the sub-battery 90 is an auxiliary battery for the main battery 50, the electric capacity of the sub-battery 90 is smaller than that of the main battery 50, and the sub-battery 90 is more compact than the main battery 50 in size (that is, length, width, and height). .

The sub battery 90 is installed in the lower space of the rear storage space 31r. A fixing bracket 91 for fixing the sub-battery 90 to the bottom plate 17 is composed of left and right two bolts 92 and a bridging member 93 . The fixing bracket 91 is configured such that left and right two bolts 92 are detachably mounted on the bottom plate 17 .

The bridge member 93 is a member for connecting the left and right two bolts 92 . The bridge member 93 has an angled substantially U-shape in cross-section in the front-rear direction of the vehicle body, and has two flanges 93b extending in the width direction of the vehicle apart from each other in the front-rear direction of the vehicle body. Two holes 93 a are respectively formed on the bridge member 93 on the side where the main frame 11 is located and on the side where the side frame 13 is located.

Each of the two left and right bolts 92 has a shaft portion 92c, a male screw portion 92a on the upper end side of the shaft portion 92c, and a head portion 92d (shown in FIG. 10 ) on the lower end side of the shaft portion 92c. The diameter of the head portion 92d (shown in FIG. 10 ) is configured to be larger than the diameter of the mounting hole 17g (shown in FIG. 8 ). The bridge member 93 is placed on the upper surface of the sub-battery 90 in such a manner as to extend in the width direction of the vehicle. In addition, the male thread portion 92a and the shaft portion 92c of one of the bolts 92 are inserted into the mounting hole 17g (shown in FIG. 8 ) from bottom to top so that the head portion 92d (shown in FIG. 10 ) is aligned with the mounting hole 17g (shown in FIG. 8 ). 8) engagement. After the male screw portion 92a is inserted into the hole 93a of the bridge member 93, the male screw portion 92a is screwed into engagement with the nut 92b. Similarly, after another bolt 92 is inserted into the mounting hole 17g of the bottom plate 17 and the hole 93a of the bridge member 93, the male screw portion 92a is screwed into engagement with another nut 92b. As a result, the sub-battery 90 is fixed to the bottom plate 17 via the fixing bracket 91 by tightening the two left and right bolts 92 , and is removed from the bottom plate 17 by loosening the two left and right bolts 92 . In the fixing bracket 91, left and right bolts 92 are detachably constructed.

In the case where the sub-battery 90 is installed as an option, a control unit 94 for controlling the interaction of current between the sub-battery 90 and the main battery 50 is arranged inside the storage box 30 . The control unit 94 includes a controller 95 for controlling charge/discharge and load of the sub battery 90 , a fuse 96 for overcurrent protection, and an electromagnetic switch 97 called a contactor. The sub-battery 90 is electrically connected to the main battery 50 via the control unit 94 . As shown in FIG. 14 , a controller 95 is mounted on an inner upper portion of the front cover 33 . A fuse 96 and an electromagnetic switch 97 are mounted on an upper portion of the front surface 17a of the bottom plate 17 via a bracket 96a. In other words, the bracket 96a is fixed to the front surface 17a of the bottom plate 17 with bolts and nuts (not shown) in a state where the hole 97b of the bracket 96a overlaps the hole of the front surface 17a of the bottom plate 17 . In this way, the control unit 94 is installed at a high position in the storage space 31 so as not to be splashed by water or the like.

Since the sub-battery 90 is arranged in the vicinity of the main battery 50 inside the storage box 30 (shown in FIG. 4 ), the sub-battery 90 can be maintained in a clean environment and can supply power to electric appliances that are additionally equipped as options. device, thereby being able to facilitate cooperation between the main battery 50 and the secondary battery 90 .

As mentioned above, using the above embodiments, the following can be obtained:

(1) Since the engine 20 and the battery 50 are arranged under the same seat, the length of the power supply cable 54 can be shortened.

(2) Since the battery 50 is arranged below the rear seat 7r among the seats arranged in two rows, the space in the vehicle cabin 5 can be effectively used.

(3) Since the main battery 50 is fixed to the bottom plate 17 by the fixing bracket 60 , mounting/removal of the main battery 50 on/from the bottom plate 17 is facilitated.

(4) Since the gap for drainage is provided between the main frame 11 and the bottom plate 17 , water accumulated on the bottom plate 17 can be drained.

(5) Since the sub-battery 90 is arranged behind and near the main battery 50 , more electric power can be supplied and cooperation between the main battery 50 and the sub-battery 90 is facilitated.

(6) Since the battery 50 is arranged inside the storage box 30, the battery 50 can be placed in a clean environment.

(7) Since the control unit 94 for performing current control between the sub battery 90 and the main battery 50 is arranged inside the storage box 30 , it is possible to arrange the control unit 94 in a clean environment.

(8) Since the storage box 30 has airtightness, the storage box 30 can be placed in a cleaner environment.

(9) Since the lower end of the second post 62 is bent into a substantially L-shaped shape, it is helpful for the second post 62 to be mounted on/dismounted from the bottom plate 17 and the second post 62 can be prevented. turn.

(10) Since the first strut 61 has an angled substantially U-shaped shape in cross-section in the horizontal direction, the mechanical strength of the first strut 61 can be improved.

Claims (10)

1. A utility vehicle comprising: a main frame for forming the frame of the chassis; a rollover protective structure, namely ROPS, which is arranged at the middle part of the vehicle body of the main frame in the front-rear direction so as to surround the vehicle compartment; a seat arranged inside the ROPS; an engine disposed below the seat; and A battery arranged below the seat and outside of the engine in the width direction of the vehicle. 2. The utility vehicle of claim 1, wherein: The seat is composed of seats arranged in two rows, which are front seats and rear seats, and the battery is arranged under the rear seats. 3. The utility vehicle of claim 1, wherein: the battery is placed on a base plate mounted between the main frame and side frames extending substantially parallel to the main frame, and The battery is fixed to the bottom plate by using a fixing bracket, and the fixing bracket includes: a first pillar, the first pillar is fixed to the bottom plate on the side where the main frame is located; a second pillar, the first pillar Two pillars are detachably mounted on the bottom plate at the side where the side frame is located; and a bridging member is used for connecting the first pillar and the second pillar. 4. The utility vehicle of claim 3, wherein: the base plate is mounted on the main frame via supports, and A drainage gap is provided between the main frame and the bottom plate. 5. The utility vehicle of claim 1, wherein: The battery is a main battery, and the sub-battery can be arranged behind the main battery and in the vicinity of the main battery. 6. The utility vehicle of claim 1, wherein: The battery is arranged inside the storage box. 7. The utility vehicle of claim 5, wherein: A control unit for performing current control between the sub battery and the main battery is arranged inside the storage box. 8. The utility vehicle of claim 6, wherein: The storage box has airtightness. 9. The utility vehicle of claim 3, wherein: The lower end of the second strut is bent into a substantially L-shape. 10. The utility vehicle of claim 3, wherein: The first strut has an angled substantially U-shape in cross-section in the horizontal direction.