JP6433717B2 - Work vehicle - Google Patents

Description

  The present invention relates to a work vehicle such as a tractor, and more particularly to a work vehicle having a fender that covers an upper portion of a rear wheel.

  In general, a working vehicle such as a tractor supports the aircraft with front and rear wheels, and in order to protect workers from mud and pebbles that are splashed when the rear wheels are driven, A fender is provided.

  Conventionally, there has been proposed a tractor that covers the front and upper sides of the left and right rear wheels by a metal fender provided with a working lever and the like, and an over fender formed by blow molding a resin material so as to extend the fender. (See Patent Document 1). The over fender of the tractor is divided and formed in the front-rear direction, and has a front fender portion that covers the rear wheel from the front to the top, and a rear fender portion that covers a part of the rear wheel from the rear to the rear.

JP 2002-321653 A

  However, since the tractor described in Patent Document 1 is formed by dividing the over fender into the front fender portion and the rear fender portion, the cut at the connecting portion between the front fender portion and the rear fender portion is conspicuous in side view, and the appearance Was not good.

  Therefore, the present invention provides a working vehicle that is formed of a side fender that extends in the front-rear direction of an over fender and a rear fender that is connected to the inward side of the side fender, thereby solving the above-described problems. Objective.

The present invention includes an airframe (4, 54) supported by a front wheel (2, 52) and a rear wheel (3, 53), and a metal fender (13, 69) that covers the rear wheel (3, 53). ) And a resin overfender (15, 70) connected to the outside and the rear part of the fender (13, 69) in the working vehicle (1, 51),
The over fenders (15, 70) extend in the front-rear direction and are curved along the outer periphery of the rear wheel, and the side fenders (15a) at the rear end of the side fender (15a). And a rear fender (15b, 70a) connected to the inner side of
The rear fenders (15b, 70a) are connected to the side fenders (15a), and are connected to the connection surfaces (22, 72) curved along the outer periphery of the rear wheels (3, 53). ) Projecting upward from the projections (23, 25, 26, 27, 73, 75, 76, 77) to which the tail lamps (30, 80) are attached,
The convex portions (23,25,26,27,73,75,76,77) is projected to the side surface (23, 73) or al rear of the machine body rear side, the tail lamp (30, 80) are arranged Ribs (29, 79) and tail lamp routing holes (29a, 79a) formed in the ribs (29, 79) .
It is characterized by that.

Further, for example, the rear fender (15b) is provided on a side surface (27) of the convex portion on the outer side of the machine body, and is formed in a support groove (32) to which a winker (31) is attached, and the support groove (32). A winker routing hole (32a),
The winker (31) projects outward from the side surface (27) of the convex portion on the outer side of the machine body to a position overlapping the side fender (15a) when viewed from above.

  In addition, although the code | symbol in the said parenthesis is for contrast with drawing, it does not limit the structure of this invention at all.

  According to the first aspect of the present invention, the over fender is formed by the side fender extending in the front-rear direction and the rear fender connected to the in-flight side of the side fender, so that the over fender can be joined to the over fender in a side view. The appearance can be improved.

In the present invention, the rear fender is formed with a connecting surface connected to the side fender and a convex portion having a tail lamp mounting surface rising from the connecting surface, so that the long side fender has a simple configuration. The appearance can be improved in a side view, and the mold for producing the side fender can be reduced in size and the cost can be reduced.

1 is an overall side view showing a frame vehicle type tractor according to a first embodiment of the present invention. The perspective view which shows the control part of the frame vehicle type tractor which concerns on the 1st Embodiment of this invention. The front perspective view which shows the fender upper surface of the frame vehicle type tractor which concerns on the 1st Embodiment of this invention. The rear perspective view which shows the over fender of the frame vehicle type tractor which concerns on the 1st Embodiment of this invention. FIG. The bottom view which shows attachment of the over fender and fender of the frame type tractor which concerns on the 1st Embodiment of this invention. The side fender of the frame type | mold tractor based on the 1st Embodiment of this invention is shown, (a) is the perspective view, (b) is the side view, (c) is the front view, (d) is the front view. The plan view. The rear fender of the frame type tractor concerning the 1st embodiment of the present invention is shown, (a) is the perspective view, (b) is the back view, (c) is the side view, (d) is the Plan view. The whole side view which shows the cabin vehicle type tractor which concerns on the 2nd Embodiment of this invention. The perspective view which shows the control part of the cabin vehicle type tractor which concerns on the 2nd Embodiment of this invention. The front perspective view which shows the fender upper surface of the cabin vehicle type tractor which concerns on the 2nd Embodiment of this invention. The rear perspective view which shows the over fender of the cabin vehicle type tractor which concerns on the 2nd Embodiment of this invention. FIG. The bottom view which shows the attachment of the over fender of the cabin vehicle type tractor and fender which concern on the 2nd Embodiment of this invention. The rear fender of the cabin vehicle type tractor which concerns on the 2nd Embodiment of this invention is shown, (a) is the perspective view, (b) is the back view, (c) is the side view, (d) is the Plan view.

  Hereinafter, a first embodiment of the present invention will be described with reference to the drawings using a frame vehicle type tractor. A tractor 1 (working vehicle) to which the present invention is applied includes a body 4 supported by a front wheel 2 and a rear wheel 3 having a pair of wheels, as shown in FIG. It is comprised so that working machines (not shown), such as an apparatus, can be connected up and down freely.

  The tractor 1 includes a bonnet 5 that covers an engine (not shown) installed at the front of the fuselage 4, and a control unit 6 that is disposed behind the bonnet 5 so that an operator can control the tractor 1. It is equipped with. The steering section 6 is provided with a seat 7 on which an operator is seated, a handle 9 for steering the tractor 1, a main transmission lever 10, and an auxiliary transmission lever 11.

  A safety frame 12 bent in a reverse U-shape when viewed from the front is disposed at the rear end of the control unit 6. The safety frame 12 is arranged on the left and right sides so as to straddle the control unit 6. The end is attached and fixed to a frame 20 (described later) of the body 4. The safety frame 12 prevents the tractor 1 from being reversed, and protects the operator's head and the like by forming a space between the body 4 and the ground when the tractor 1 rolls over or reverses.

  On the left and right sides of the seat 7, a metal fender 13 that is curved in an arc shape along the rear wheel 3 and covers the range from the front to the upper side of the rear wheel 3 in a side view is disposed. The fenders 13 are provided with resin over fenders 15 extending outward and rearward from the fenders 13 to cover the rear wheels 3 more widely. The fender 13 and the over fender 15 prevent mud, pebbles and the like from splashing up to the control unit 6 side by the rear wheel 3.

  As shown in FIGS. 2 and 3, the upper surfaces of the left and right fenders 13 are each formed as an arch that forms a mountain shape above the side view and is an assist grip that is gripped when getting on and off the control unit 6. A bar 16 and a side panel 17 are provided. The side panel 17 is concentrated with work machine operation tools such as a position lever. By operating these work machine operation tools, a work (not shown) connected to the rear part of the machine body 4 is operated. The machine can be moved up and down.

  As shown in FIGS. 4 to 6, the over fender 15 includes a side fender 15 a that extends seamlessly in the front-rear direction (the aircraft traveling direction), and an inner side of the side fender 15 a at the rear end of the side fender 15 a. And a rear fender 15b to be connected. 3 to 8 is an over fender on the left side of the fuselage among the over fenders arranged on the left and right sides of the seat 7, respectively. Since these left and right over fenders are formed symmetrically, only the over fender on the left side of the aircraft will be described below, and the description of the over fender on the right side of the aircraft will be omitted. Of course, the side fender 15a and the rear fender 15b constituting the over fender 15 are formed symmetrically on the left side and the right side.

  As shown in FIGS. 5 to 7, the side fender 15 a is formed to be curved so as to cover a part of the front and upper sides of the rear wheel 3, and a plurality of ribs 18 are formed inside the side fender 15 a. Is formed to improve the rigidity. Further, the side fender 15a is attached to a plurality of mounting seats 19 provided on the outer end of the fender 13 from the lower surface by bolts, and in a state of being attached to the fender 13, the side fender 15a is inclined downward toward the outside of the body. It is formed in a plate shape. As described above, the side fender 15a does not have an intricate structure, and when the side fender 15a is molded using a synthetic resin, the molten resin has good hot water and simplifies and downsizes the mold. Can reduce costs. Further, the mounting seat 19, which is the mounting portion of the side fender 15a, is arranged so as to be hidden from the appearance of the side fender 15a.

  The rear fender 15b is attached to the frame 20 of the airframe 4 via a mounting bracket 21 with bolts. As shown in FIG. 8, the rear fender 15 b includes a curved surface 22 (connection surface) that gently curves along the outer periphery of the rear wheel 3, a rising surface 23 that rises from the curved surface 22 and is formed on the rear side, An upper surface 25 that is formed substantially horizontally from the upper end of the rising surface 23, a storage portion 26 that is formed continuously at the front end of the upper surface 25, and the upper surface 25 toward the curved surface 22. And a left side surface 27 formed continuously in a substantially vertical direction.

The rising surface 23 has a rib 29 which protrudes slightly rearward from the rising surface 23, to the rib 29,-installing hole 29a is formed. To the rib 29, a tail lamp 30 is disposed (see FIG. 4), distribution search of the tail lamp 30, and is capable of performing the above-installing hole 29a. Also, the left side surface 27 is formed with support grooves 32 for supporting the turn signal 31, to the support groove 32 is-installing hole 32a for-installing of the blinker 31 is formed.

A U-shaped insertion hole 33 through which the safety frame 12 can be inserted is formed in the upper surface 25, and a thick reinforcing rib 35 is formed at the edge of the insertion hole 33. The reinforcing ribs 35, narrows the gap between the safety frame 12 and the insertion hole 33, it is possible to improve the strength of the rear fender 15b, to protect the internal-installing and bolts of the rear fender 15b from rain and muddy water be able to. Moreover, the connection part of the said safety frame 12 and the rear fender 15b becomes a natural design, and can improve an external appearance.

  The storage portion 26 is formed in a substantially cylindrical shape, and a notch 26a is formed in a part of the side surface. The storage unit 26 can store a drink enclosed in, for example, a PET bottle or a can and use it as a drink holder, and can improve functionality. In addition to the drink, the storage unit 26 can store keys, parts, and the like, but the cutout 26a makes it easy to take out these other items. A plurality of drain holes 26c are formed in the bottom surface 26b of the storage portion 26, and the plurality of drain holes 26c are provided at predetermined intervals on the outer edge portion of the bottom surface 26b in addition to the central portion of the bottom surface 26b. It is formed with. Thereby, even when the body 4 of the tractor 1 is tilted, the water accumulated in the storage portion 26 can be discharged, and the functionality can be improved. Moreover, the size of the drain hole 26c is set to a size that does not allow the parts to be used to pass through, and when the storage portion 26 is used as a part holder, it is possible to prevent the parts from leaking from the drain hole 26c. it can. Further, the bottom surface 26b is formed to be substantially flush with the curved surface 22, so that a mold for resin-molding the rear fender 15b can be simplified and the cost can be reduced.

  Further, since the height level of the rear fender 15b rising at the rising surface 23 is lowered to the height level of the curved surface 22 by the storage portion 26, the rear fender 15b can be formed in a small size. Thereby, the metal mold | die of the rear fender 15b can be reduced in size, and cost can be reduced. Further, by concentrating the necessary unevenness on the rear fender 15b, the side fender 15a connected to the rear fender 15b can have a simple configuration. Thereby, the metal mold | die of the rear fender 15b and the side fender 15a can be reduced in size, and cost can be reduced. Moreover, the height which stood up by the standing surface 23 can be naturally lowered | hung by the accommodating part 26, and an external appearance and functionality can be improved.

  A plurality of protrusions 36 are formed at the left end (outer end) of the curved surface 22, and the protrusions 36 are formed at the right end (inward end) of the rear end of the side fender 15 a. It is configured to be engageable with the hole 37 (see FIG. 5). By engaging the projection 36 of the rear fender 15b and the hole 37 of the side fender 15a, the side fender 15a and the rear fender 15b can be connected without a gap, and the connecting part between the side fender 15a and the rear fender 15b Since it is formed in a direction and the connecting portion cannot be viewed in a side view and can only be viewed from behind, the appearance can be improved.

  Next, a second embodiment of the present invention will be described using a cabin vehicle type tractor. As shown in FIG. 9, a tractor 51 (working vehicle) to which the present invention is applied includes a body 54 supported by a front wheel 52 and a rear wheel 53 having a pair of wheels. It is comprised so that working machines (not shown), such as an apparatus, can be connected up and down freely.

  The tractor 51 includes a bonnet 55 that covers an engine (not shown) installed at the front of the fuselage 54, and a control unit 56 that is arranged behind the bonnet 55 and that allows an operator to control the tractor 51. And a cabin 57 for covering. The cabin 57 is supported by the cabin frame 62 and a box-type cabin frame 62 having a front column 59, a rear column 60, an upper beam 61 that connects the upper ends of the front column 59 and the rear column 60, and the like. And a door 65 that is supported by the rear column 60 so as to be openable and closable. The operator opens the door 65 and controls the tractor 51 using the control unit 56 inside the cabin 57.

  As shown in FIGS. 10 and 11, the steering unit 56 is provided with a seat 67 on which an operator is seated, a handle (not shown) that steers the tractor 51, a main transmission lever, an auxiliary transmission lever, and the like. ing. On the left and right sides of the seat 67, a metal fender 69 that is curved in an arc shape along the rear wheel 53 and covers the range from the front to the upper side of the rear wheel 53 in a side view is disposed. In addition, a resin overfender 70 that extends further outward and rearward from the fender 69 and covers the rear wheel 53 more widely is provided outside and rearward of the fender 69. By the fender 69 and the over fender 70, mud, pebbles and the like are prevented from splashing to the cabin 57 side by the rear wheel 53.

  On the upper surfaces of the left and right fenders 70, side panels 71 on which work machine operation tools such as position levers are intensively arranged are provided. By operating these work machine operation tools, the machine body described above is provided. A working machine (not shown) connected to the rear portion of the 54 can be lifted and lowered. As shown in FIGS. 11 to 14, the over fender 70 includes a side fender 15a that extends seamlessly in the front-rear direction (the advancing direction of the vehicle), and an inner side of the side fender 15a at the rear end of the side fender 15a. And a rear fender 70a to be connected. The over fender 70 shown in FIGS. 11 to 15 is an over fender on the left side of the fuselage among the over fenders arranged on the left and right sides of the cabin 57, respectively. Since these left and right over fenders are formed symmetrically, only the over fender on the left side of the aircraft will be described below, and the description of the over fender on the right side of the aircraft will be omitted. Of course, the side fender 15a and the rear fender 70a constituting the over fender 70 are formed symmetrically on the left side and the right side of the body.

  The side fender 15a has the same shape and the same mounting configuration as those of the first embodiment described above, and the same reference numerals as those of the first embodiment are given, and the description of the configuration of the side fender 15a is omitted. The rear fender 70a is attached to the frame 74 of the fuselage 54 with bolts. As shown in FIG. 15, the rear fender 70a includes a curved surface 72 (connection surface) that gently curves along the outer periphery of the rear wheel 53, a rising surface 73 that rises from the curved surface 72 and is formed as a rear side surface, An upper surface 75 formed continuously from the upper end of the rising surface 73 substantially horizontally, a left side surface 76 formed substantially vertically from the upper surface 75 toward the curved surface 72, the upper surface 75, and And an inclined surface 77 formed continuously from the left side surface 76 and inclined forward.

The rising surface 73 has a rib 79 that slightly protrudes rearward from the rising surface 73 and is formed to be a vertical surface with respect to the aircraft traveling direction (front-rear direction). ,-installing hole 79a is formed. To the rib 79, tail lamp 80 is disposed (see FIG. 12),-installing of the tail lamp 80, and is capable of performing the above-installing hole 79a. A winker 81 is supported in the vicinity of the tail lamp 80 of the rear column 60.

Here, as shown in FIGS. 13 and 15A, a U-shaped groove 82 is formed in the right front end portion of the rear fender 70a. When the rear fender 70 a is attached to the machine body 54, a slight gap is formed by the U-shaped groove 82. The U-shaped groove 82 is capable of supporting the arrangement search such as the tail lamp 80 and winker 81, a該配search through the gap between the body 54, not shown, which is disposed inwardly of the body 54 to the power supply Can be connected to. Thus, it is not necessary to hold the-installing a clip or the like, it is possible to reduce the number of parts, and it is possible to enhance the appearance.

  The inclined surface 77 is formed to bend downward along the rear lower end of the door 65 so as not to interfere with the door 65 of the cabin 57 (see FIG. 9). The inclined surface 77 smoothly connects to the front portion of the curved surface 72 having a plane substantially the same as the upper surface of the side fender 15a. That is, the inclined surface 77 is designed so that the operator does not get in the way when the operator opens and closes the door 65, and the rear fender 70a and the side fender 15a are naturally connected to improve the appearance. .

  Further, since the height level of the rear fender 70a rising at the rising surface 73 is lowered to the height level of the curved surface 72 by the inclined surface 77, the rear fender 70a can be formed in a small size. Thereby, the metal mold | die of the rear fender 70a can be reduced in size, and cost can be reduced. Further, by concentrating necessary unevenness on the rear fender 70a, the side fender 15a connected to the rear fender 70a can have a simple configuration. Thereby, the metal mold | die of the rear fender 70a and the side fender 15a can be reduced in size, and cost can be reduced. Further, the height rising from the rising surface 73 can be naturally lowered by the inclined surface 77, and the appearance and functionality can be improved.

  A plurality of protrusions 83 are formed at the left end (outer end) of the curved surface 72, and these protrusions 83 are formed at the right end (inward end) of the rear end of the side fender 15a. It is configured to be engageable with the hole 37 (see FIG. 13). By engaging the projection 83 of the rear fender 70a and the hole 37 of the side fender 15a, the side fender 15a and the rear fender 70a can be connected without a gap, and the connecting portion between the side fender 15a and the rear fender 70a Since it is formed in a direction and the connecting portion cannot be viewed in a side view and can only be viewed from behind, the appearance can be improved.

  As described above, the side fender 15a is shared in the frame vehicle type tractor 1 of the first embodiment and the cabin vehicle type tractor 51 of the second embodiment. The rear fender connected to 15a is different. That is, since the rear fender applicable to the frame vehicle type or the cabin vehicle type can be appropriately replaced with the side fender 15a, the cost can be reduced by using common parts.

  In addition, this invention is applicable not only to a tractor but other working vehicles, such as a rice transplanter.

1,51 Tractor (work vehicle)
2,52 Front wheel 3,53 Rear wheel 4,54 Airframe 13, 69 Fender 15, 70 Over fender 15a Side fender 15b, 70a Rear fender 22, 72 Connecting surface 23, 73 Rising surface

Claims (2)

In a working vehicle comprising a fuselage supported by a front wheel and a rear wheel, a metal fender that covers an upper part of the rear wheel, and a resin overfender that is connected to the outside of the fuselage and a rear part of the fender,
The over fender includes a side fender that extends in the front-rear direction and is curved along the outer periphery of the rear wheel, and a rear fender that is coupled to the inner side of the side fender at the rear end of the side fender. And
The rear fender has a connection surface that is connected to the side fender and is curved along the outer periphery of the rear wheel, and a convex portion that protrudes upward from the connection surface and to which a tail lamp is attached,
The convex portion is protruded on a side surface or found behind the machine body rear side, and the rib which the tail lamp Ru is arranged, the hole in the tail lamp arrangement for ropes formed on the rib, it is provided,
A working vehicle characterized by that. The rear fender is provided on a side surface on the outer side of the body of the convex portion, and has a support groove to which a winker is attached, and a winker routing hole formed in the support groove ,
The winker protrudes outward from the side surface of the convex portion from the outer side of the fuselage to a position overlapping the side fender as viewed from above.
The working vehicle according to claim 1.

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