JP4789779B2 - Front loader - Google Patents

Description

The present invention relates to a front loader mounted on a tractor vehicle body.

In the tractor, a bonnet is provided at the front part of the tractor body, a fuel tank is housed in the bonnet, a fuel supply port projects upward from the fuel tank, and the fuel supply port protrudes from the upper surface of the bonnet. Yes (for example, Patent Documents 1 to 3). In addition, this type of conventional tractor is connected to a mounting frame provided on the left and right sides of the tractor body, a boom pivotally supported on the upper end side of the mounting frame, and a swingable connection to the tip end side of the boom. There is a tractor with a front loader (loader working machine) on which a front loader including a working tool is mounted (for example, Patent Documents 4 to 7).
JP-A-3-292274 JP-A-3-292275 Japanese Patent Laid-Open No. 9-207829 JP 2006-257682 A JP 2006-77473 A JP 2006-27480 A JP-A-2005-282101

Therefore, in the conventional tractor with a front loader, when supplying fuel from the tractor, a poly container as a fuel container is placed on the hood of the tractor, or fuel is supplied from the fuel supply port while the poly container is lifted. However, especially in the case of a tractor with a front loader, lifting a heavy plastic container of about 20 kg to the vicinity of the fuel filler opening beyond the boom of the front loader will interfere with the boom of the front loader. And it was very troublesome.
Some conventional tractors use an electric pump for fuel supply to supply fuel from a plastic container to a fuel supply port on the bonnet upper surface side (for example, Patent Document 3). It was necessary to keep a power pump, and a power source such as an outlet and a battery was necessary, which was inconvenient.

The present invention, the in view of the problems, no case that the boom off Rontoroda gets in the way, in which as the fuel from the fuel container can be supplied from comfortably fuel supply port.

The technical means of the present invention for solving this technical problem is a front loader mounted on a tractor, and a pair of left and right mounting frames provided on the left and right sides of the tractor vehicle body, and each mounting frame is swingable up and down. In a front loader comprising a pair of left and right booms that are pivotally supported, and a work implement that is swingably coupled to the distal ends of the pair of left and right booms,
The container mounting table for mounting the fuel container on the boom is provided in a horizontal state .
Further, according to another technical means of the present invention, the container mounting table is configured such that the container is placed on the boom side and the fuel container is mounted so that fuel can be supplied to the fuel supply port of the tractor by the fuel container. The point is that the posture can be freely changed to the fueling posture.

Another technical means of the present invention resides in that the container mounting table is arranged vertically inside the boom facing the tractor vehicle body in the storage posture.
Another technical means of the present invention resides in that the container mounting table is arranged vertically on the outside of the boom when in the storage posture.
Another technical means of the present invention is that the container mounting table is supported by a boom so that the container mounting table can be moved up and down on the side of the tractor body, and the container mounting table is interlocked with the expansion and contraction operation of the boom cylinder or the work tool cylinder. The mounting table is configured to move up and down.

  According to the present invention, the fuel container can be placed on the container mounting table provided on the boom, and the fuel container can be easily placed close to the fuel supply port, and the fuel container is obstructed by the boom of the front loader. Without this, the fuel can be easily supplied from the fuel container through the fuel supply port.

Embodiments according to the present invention will be described below with reference to the drawings.
1 and 2 show an embodiment of a tractor with a front loader (loader working machine) to which the present invention is applied. 1 and 2, a front loader 3 is attached to the front portion of the tractor 1.
The tractor 1 has a tractor body 2 and a pair of left and right front and rear wheels 4 and 5, and a bonnet 6 that covers an engine, a radiator, and the like is provided at the front.
The front loader 3 is mainly composed of a pair of left and right mounting frames 7, a pair of left and right booms 8, and a work tool 9 such as a bucket.

  The pair of left and right mounting frames 7 includes a support base 10 projecting outward from the tractor vehicle body 2 in the left-right direction, a main frame 11 attached to the outer end of the support base 10 in the left-right direction, and a main frame 11. The frame 11 includes a side frame 12 that protrudes upward and is detachably attached to the frame 11, and these are installed on the left and right sides of the tractor vehicle body 2. An attachment piece 15 is projected upward from each side frame 12 of the left and right attachment frames 7, and the upper end sides of the left and right attachment frames 7 (side frames 12) are connected to the left and right by a connecting member 16 via the attachment pieces 15.

The tractor vehicle body 2 has an engine (not shown) connected to the front side, and a clutch housing, a transmission case 13 and a rear wheel differential device connected sequentially to the rear side.
The boom 8 of the front loader 3 has a base end side (rear end side) pivotally connected to the upper part of the pair of side frames 12 so as to be pivotable about a support shaft 22 in the left-right direction so that it can swing up and down. ing.
In addition, a boom cylinder 17 composed of a double-acting hydraulic cylinder is interposed between a middle part in the longitudinal direction of the boom 8 and a middle part in the vertical direction of each of the left and right side frames 12. Can be swung.

  Further, the lower end of the work tool 9 is pivotally connected to the front end side (front end side) of the boom 1 so as to be swingable around the support shaft 23. Between the rear surface of the work tool 9 and the vicinity of the tip of the boom 8, the ends of the two bent and extended links 24 and 25 are connected to be rotatable around the support shafts 26 and 27. Further, a work tool cylinder (bucket cylinder) 29 composed of a double-acting hydraulic cylinder is interposed between the upper surface of the middle part in the longitudinal direction of the boom 8 and the intermediate connection point of the two folding / extending links 24 and 25. The work tool 9 can be swung (squeezing and dumping is possible) by the expansion and contraction of the work tool cylinder 29.

A stand 33 is attached to the lower surface on the front end side of the boom 8. This stand 33 is for supporting the boom 8 in a state where the work tool 9 is grounded and holding it independently when the front loader 3 is separated from the tractor 1.
A rear wheel fender 35 that covers the inside of the rear wheel 5 is provided on each of the left and right sides of the rear portion of the tractor vehicle body 2, and a driver's seat is provided between the pair of left and right rear wheel fenders 35. A control unit 39 including a steering handle 37 is provided in front of the driver's seat.
The fuel tank 43 is housed in the bonnet 6, the fuel supply port 44 of the fuel tank 43 protrudes upward from the tank body, protrudes upward from the upper surface of the rear end portion of the bonnet 6, and a cap 45 is attached to the fuel supply port 44. It is attached detachably. The fuel supply port 44 is arranged at a position shifted from the center in the left-right direction on the upper surface of the bonnet 6 to one side in the left-right direction.

  3-5, the container mounting base 48 which mounts the fuel container (poly container) 47 shown in FIG.10 and FIG.11 in the middle part of the base end side of the right boom 8 is provided. A holding cylinder 49 is fixed to the outer surface of the right boom 8 through a mounting member 46 by a fixing tool such as a bolt or welding, and an L-shaped support rod 50 is held by the holding cylinder 49. The support rod 50 includes a vertical support portion 51 and a horizontal support portion 52 protruding forward from the vertical support portion 51, and the vertical support portion 51 is inserted and held by the holding cylinder 49 so as to be rotatable about the vertical axis. A spring receiver 53 is externally fitted to the lower end portion of the vertical support portion 51 and is prevented from coming off by a retaining pin 55. A spring 54 is externally fitted between the spring receiver 53 of the vertical support portion 51 and the holding cylinder 49, and the spring 54 biases the support rod 50 downward with respect to the holding cylinder 49.

An arc-shaped locking recess 57 is formed at the upper end portion of the holding cylinder 49, and an engagement pin 58 protrudes in the middle of the vertical support portion 51 of the support rod 50. With the engagement to 57, the rotation of the support rod 50 around the vertical axis is positioned and fixed in a state where the container mounting table 48 swings outward in the left-right direction of the boom 8.
A container mounting table 48 is supported by the horizontal support portion 52 of the support rod 50 via a support cylinder 61 so as to be rotatable about the horizontal axis in the front-rear direction. A support cylinder 61 is fixed to the container mounting table 48, and the support cylinder 61 is rotatably fitted to the lateral support portion 52.

  A rotation restricting piece 63 is protruded outwardly from the lateral support portion 52, a rotation restricting plate 64 is protruded from the support cylinder 61, and one insertion hole 65 is provided in the rotation restricting piece 63. The restriction plate 64 is provided with a first positioning hole 66 and a second positioning hole 67 corresponding to the insertion hole 65. Further, a spring receiver 71 is externally fitted to the front end portion of the lateral support portion 52 of the support rod 50, and the spring receiver 71 is prevented from coming off by a stop pin 72 inserted through the lateral support portion 52. A spring 73 is externally fitted between the support cylinder 61 of the horizontal support portion 52 and the spring receiver 71, and the spring 73 urges the support cylinder 61 through the container mounting table 48 backward with respect to the horizontal support portion 52 of the support rod 50. is doing.

  Thus, the support cylinder 61 or the rotation restricting plate 64 is rotated and adjusted around the horizontal axis with respect to the horizontal support portion 52 so that the first positioning hole 66 and the insertion hole 65 are aligned with each other. By inserting the first positioning hole 66 and the insertion hole 65, the container mounting table 48 is disposed in the vertical direction along the outer surface of the right boom 8 as shown by solid lines in FIGS. 3 to 5. Reference numeral 48 denotes a storage posture A that is stored on the outer surface side of the boom 8. Further, the support cylinder 61 to the rotation restricting plate 64 are adjusted to rotate about the horizontal axis with respect to the horizontal support portion 52 so that the second positioning hole 67 and the insertion hole 65 are aligned with each other, and the stop pin 69 is moved to the second position. By inserting into the positioning hole 67 and the insertion hole 65, the container mounting table 48 is in the horizontal direction from the upper side of the right boom 8 in the horizontal state where the fuel container 47 can be mounted as shown by the chain line in FIGS. It is comprised so that it may become the oil supply attitude | position B which protruded in this.

When the container mounting table 48 is in the oil supply posture B, the support rod 50 is moved inward in the left-right direction around the vertical axis (vertical support portion 51) with respect to the holding cylinder 49 (in the direction of arrow a shown in FIGS. 2 and 4). ), The container mounting table 48 is configured to approach from the boom 8 side toward the fuel supply port 44 on the upper surface of the bonnet 6 in a horizontal state where the fuel container 47 can be mounted.
Accordingly, the container mounting table 48 is changed into the storage attitude A stored on the boom 8 side and the fuel supply attitude B where the fuel container 47 is mounted and fuel can be supplied from the fuel supply port 44 by the fuel container 47. In the storage posture A, the container mounting table 48 is arranged vertically on the outside of the boom 8.

  According to the above-described embodiment, when fuel is supplied from the fuel supply port 44 to the fuel tank 43, as shown by the solid line in FIG. 1 and FIGS. The locking pin 69 is removed from the first positioning hole 66 and the insertion hole 65 from the state of being disposed between the boom 8 and the support cylinder 61 or the rotation restricting plate 64 is rotated about the horizontal axis with respect to the horizontal support portion 52. Adjustment is made so that the second positioning hole 67 and the insertion hole 65 coincide with each other, and the stopper pin 69 is inserted into the second positioning hole 67 and the insertion hole 65, whereby the container mounting table 48 is placed in a horizontal state. B, and then the fuel container 47 is mounted on the container mounting table 48, and the support rod 50 is moved inward in the left-right direction around the vertical axis (vertical support portion 51) with respect to the holding cylinder 49 (FIGS. 2 and By rotating in the direction of arrow a shown in FIG. The mounting table 48 can be approached from the boom 8 side toward the fuel supply port 44 on the upper surface of the bonnet 6 in a state where the fuel container 47 is mounted (or a state where the fuel container 47 can be mounted). Even an elderly person or the like can easily supply the fuel tank 43 from the fuel supply port 44.

  In addition, after the fuel is supplied to the fuel tank 43, the support rod 50 is moved laterally outward (in the direction of the arrow b shown in FIGS. 2 and 4) around the vertical axis (vertical support portion 51) with respect to the holding cylinder 49. ), The container mounting table 48 is moved to the outside of the boom 8 in the fueling posture B as shown by the chain line in FIG. Thereafter, the support cylinder 61 or the rotation restricting plate 64 is rotated and adjusted around the horizontal axis with respect to the horizontal support portion 52 so that the first positioning hole 66 and the insertion hole 65 coincide with each other, and the stop pin 69 is moved to the first position. The container mounting table 48 may be arranged in the vertical direction along the outer surface of the boom 8 (in the storage posture A) by being inserted through the positioning hole 66 and the insertion hole 65. Therefore, the container mounting table 48 can be stored compactly on the outer surface side of the boom 8 so as not to obstruct loader work or the like.

6 to 9 show other embodiments, in which the holding cylinder 49 is fixed to the inner surface of the boom 8 via the mounting member 46, and the vertical support portion 51 and the holding cylinder 49 of the support rod 50 are vertically arranged. It is formed long. The vertical support portion 51 of the support rod 50 is inserted into the holding cylinder 49 so as to be vertically slidable. When the container mounting table 48 is in the storage posture A, the container mounting table 48 is vertically positioned between the boom 8 and the tractor vehicle body 8. It is arranged in the direction.
A locking recess 57 is formed at the upper end of the holding cylinder 49, and a locking hole 77 is provided in the middle of the lower side of the holding cylinder 49 corresponding to the locking recess 57. A guide recess 78 in the vertical direction is provided on the inner peripheral surface of the holding cylinder 49 from the locking recess 57 to the locking hole 77. As shown in FIG. 9, a holding hole 79 having a small-diameter hole 79 a and a large-diameter hole 79 b is provided in the left-right direction in the middle of the vertical support portion 51 in the vertical direction, and the large-diameter portion 81 b is provided in the holding hole 79. The engaging pin 81 is held so as to be retractable outward, and the engaging pin 81 is urged so as to protrude outward by a spring 82 accommodated in the holding hole 79, and can slide up and down in the guide recess 78. Is engaged. A plug 83 is fitted and fixed to the inner end of the holding hole 79 of the vertical support 51 in the left-right direction, and the inner end of the vertical support 51 in the direction of the holding hole 79 is closed by the plug 83.

  Thus, when the support rod 50 is slid upward with respect to the holding cylinder 49, the engaging pin 81 is disengaged upward from the guide recess 78 and protrudes outward, so that the locking recess 57 is moved upward. Thus, as shown by a chain line in FIG. 7, the support rod 50 is vertically slid at an upward sliding position where most of the lateral support portion 52 of the support rod 50 and the container mounting table 48 protrude from the upper surface of the boom 8. When the support rod 50 is slid downward with respect to the holding cylinder 49, the engagement pin 81 is released downward from the guide recess 78 and engages with the locking hole 77. As shown by a solid line in FIG. 7, the support rod 50 and the container mounting table 48 are positioned so that most of the support rod 50 and the container mounting table 48 are retracted downward from the upper surface of the boom 8 so that the support rod 50 does not slide up and down. Has been.

  Therefore, after the container mounting table 48 is set in the storage posture A, the container mounting table 48 is vertically moved between the boom 8 and the tractor vehicle body 2 by sliding the support rod 50 and the container mounting table 48 to the downward sliding position. It is arranged compactly in the direction. Further, with the container mounting table 48 set in the storage posture A, after the support rod 50 and the container mounting table 48 are slid to the upward sliding position, the container mounting table 48 is moved around the lateral support portion 52 of the support rod 50. And the container mounting table 48 can be set to the fuel supply posture B. At this time, as in the case of the above embodiment, the container mounting table 48 is rotated by turning the support rod 50 inward in the left-right direction around the vertical axis (vertical support portion 51) with respect to the holding cylinder 49. Is configured to approach from the boom 8 side toward the fuel supply port 44 on the upper surface of the bonnet 6 in a horizontal state where the fuel container 47 can be placed. Other points are the same as those of the embodiment shown in FIGS.

  According to the above embodiment, when fuel is supplied from the fuel supply port 44 to the fuel tank 43, the container mounting table 48 is positioned vertically between the boom 8 and the tractor vehicle body 8 as shown by a solid line in FIGS. First, the engaging pin 81 is retracted inward from the state of being placed in the (storage position A), and then the supporting rod 50 is slid upward relative to the holding cylinder 49 to engage the engaging pin 81. The engaging portion 57 is engaged with the stopper recess 57 from the upper side, so that most of the lateral support portion 52 and the container mounting table 48 of the support rod 50 protrude from the upper surface of the boom 8 as shown in FIG. . Thereafter, as in the case of the above-described embodiment, the retaining pin 69 is removed from the first positioning hole 66 and the insertion hole 65, and the support cylinder 61 to the rotation restricting plate 64 are rotated about the horizontal axis with respect to the horizontal support portion 52. The second positioning hole 67 and the insertion hole 65 are made to coincide with each other, and the set pin 69 is inserted into the second positioning hole 67 and the insertion hole 65, whereby the container mounting table 48 is in a horizontal state. After that, the fuel container 47 is mounted on the container mounting table 48, and the support rod 50 is rotated inward in the left-right direction around the vertical axis (vertical support portion 51) with respect to the holding cylinder 49. Accordingly, the container mounting table 48 can be approached from the boom 8 side toward the fuel supply port 44 on the upper surface of the bonnet 6 with the fuel container 47 mounted (or in a state where the fuel container 47 can be mounted). Fuel from the fuel supply port 44 It can be comfortably supplied to click 43.

  In addition, after the fuel is supplied to the fuel tank 43, the container mounting base 48 is rotated by rotating the support rod 50 outward in the left-right direction around the vertical axis (vertical support portion 51) with respect to the holding cylinder 49. Is moved to the boom 8 side. Thereafter, the support cylinder 61 or the rotation restricting plate 64 is rotated and adjusted around the horizontal axis with respect to the horizontal support portion 52 so that the first positioning hole 66 and the insertion hole 65 coincide with each other, and the stop pin 69 is moved to the first position. By inserting into the positioning hole 66 and the insertion hole 65, the container mounting table 48 is disposed vertically (storage posture A) between the boom 8 and the tractor vehicle body 8, and the engagement pin 81 is further retracted inward. After that, the support rod 50 may be slid downward with respect to the holding cylinder 49 to engage the engaging pin 81 with the locking hole 77. As shown by the solid lines in FIGS. The stage 48 is placed between the boom 8 and the tractor vehicle body 8 in the vertical direction (storage posture A). Therefore, the container mounting table 48 can be stored compactly between the boom 8 and the tractor vehicle body 8 so as not to interfere with the loader operation.

  10 to 14 show other embodiments. A parallel link 85 is provided on the left boom 8, and the container mounting table 48 is supported on the left boom 8 by the parallel link 85 so as to be movable up and down. The parallel link 85 includes a front link 86 and a rear link 87, and the front link 86 and the rear link 87 are disposed outside the left boom 8 and outside the left front wheel 4. The upper part of the rear link 87 is pivotally supported about a pivot 90 in the left and right direction, and is pivotally supported by the boom 8 around the pivot 89 in the left and right direction. A container mounting table 48 is connected between the lower end of the container 87.

  A connecting piece 93 projects upward from the front link 86 of the parallel link 85, and an upper end portion of the connecting piece 93 is connected to a middle portion of the bending / extending link 25 of the work tool 9 by a connecting rod 94. Thereby, the container mounting table 48 is configured to move up and down in conjunction with the expansion and contraction operation of the work tool cylinder 29. That is, by extending the work tool cylinder 29, the front link 86 swings rearward about the support shaft 89, and the rear link 87 swings rearward about the support shaft 90, so that the container mounting table 48 is moved to the bonnet 6. It is designed to rise above the top surface. Further, by reducing the work tool cylinder 29, the front link 86 swings forward around the support shaft 89, and the rear link 87 swings forward around the support shaft 90, so that the container mounting table 48 is bonneted. 6 Lower than the upper surface.

Further, the front end portion of the connecting rod 94 can be connected to the support shaft 27 portion of the bent link 25 in place of the middle portion of the bent link 25. As shown in FIG. Is connected to the support shaft 27 portion of the bent link 25 so that the front link 86 swings rearward about the support shaft 89 and the rear link 87 swings rearward about the support shaft 90 to mount the container. The parallel link 85 can be fixed to the boom 8 in the storage state in which the mounting table 48 is raised.
13 and 14, the front portion of the container mounting table 48 is connected to the lower end portion of the front link 86 via the front mounting piece 96 so as to be rotatable around a support shaft 97 in the left-right direction. Is connected to the lower end of the rear link 87 via a rear mounting piece 98 so as to be rotatable around a support shaft 99 in the left-right direction.

The container mounting table 48 includes a base plate 101 and a swing plate 102, and the base plate 101 is placed and fixed on the horizontal portions of the front mounting piece 96 and the rear mounting piece 98. The support cylinder part 103 and the support cylinder part 104 of the swing plate 102 are connected so as to be swingable around the support shaft 105 in the front-rear direction. The swing plate 102 is urged around the support shaft 105 in the direction of the arrow d shown in FIG. 14 by a spring (not shown) provided on the support shaft 105 and the like with respect to the base plate 101.
Between the container mounting table 48 and the front mounting piece 96, a swinging / swing restricting mechanism 107 that restricts swinging of the swinging plate 102 around the support shaft 105 is provided. The swing restriction mechanism 107 includes a guide plate 108 provided on the swing plate 102, and a restriction rod 112 provided on the front mounting piece 96 so as to be rotatable around the support shaft 111 in the left-right direction via the protruding piece 110. The guide plate 108 is provided with an S-shaped guide groove 113, and an engaging portion 115 bent in the left-right direction is provided at the swinging end portion of the restriction rod 112, and the engaging portion 115 serves as a guide groove of the guide plate 108. 113 is slidably engaged along 113. As a result, the swinging plate 102 is swung downward around the support shaft 105 and the engaging portion 115 of the restricting rod 112 is engaged with the front or lower end portion of the guide groove 113, whereby the container mounting table 48 is moved. The swinging plate 102 can be held in the storage posture A suspended vertically (most of the container mounting table 48 is placed vertically on the outer side of the boom 8 and stored on the boom 2 side). By swinging the plate 102 upward around the support rod 50 and engaging the engaging portion 115 of the restricting rod 112 with the other end on the rear or upper side of the guide groove 113, the container mounting table 48 is moved to the swing plate 102. Is configured to be held in an oil supply posture B which is continuous with the base plate 101 (the entire container mounting table 48 is in a horizontal state).

  According to the above embodiment, when fuel is supplied from the fuel supply port 44 to the fuel tank 43, as shown in FIG. 10 or FIG. 11, the container mounting table 48 is held in the storage posture A as shown in FIG. In addition, the front end portion of the connecting rod 94 is connected to the middle portion of the bending link 25 in place of the support shaft 27 portion of the bending link 25, and the swing plate 102 is swung upward around the support rod 50 to be regulated. By engaging the engaging portion 115 of the flange 112 with the other end portion on the rear or upper side of the guide groove 113, the swinging plate 102 of the container mounting table 48 becomes the base plate 101 as shown by a chain line in FIG. 14. By holding the oil supply posture B in a continuous horizontal state and reducing the work tool cylinder 29 in this state, the front link 86 is swung forward about the support shaft 89 as shown in FIG. Rear link 87 around spindle 90 Write is swung in, also lowers from the container mounting table 48 bonnet 6 top. Thereafter, the fuel container 47 is mounted on the container mounting table 48 in the lowered state. Next, by extending the work tool cylinder 29, as shown in FIG. 11, the front link 86 is swung back around the support shaft 89, and the rear link 87 is swung back around the support shaft 90. Thus, the container mounting table 48 may be raised above the upper surface of the bonnet 6. Accordingly, the container mounting table 48 on which the fuel container 47 is placed can be approached toward the fuel supply port 44 on the upper surface of the bonnet 6, and the fuel in the fuel container 47 can be easily supplied from the fuel supply port 44 to the fuel tank 43. Can do.

  Further, after the fuel is supplied to the fuel tank 43, the front end portion of the connecting rod 94 may be connected to the support shaft 27 portion of the bent link 25 as shown in FIG. As a result, the front link 86 swings rearward about the support shaft 89 and the rear link 87 swings rearward about the support shaft 90 to raise the container mounting table 48, and the parallel link 85 is raised. The boom 8 can be fixed. Further, the swing plate 102 may be swung downward around the support shaft 105 to engage the engaging portion 115 of the restriction rod 112 with the front or lower end of the guide groove 113. Accordingly, the container mounting table 48 can be held in the storage posture A in which the swing plate 102 is suspended in the vertical direction. Therefore, the container mounting table 48 can be stored compactly on the outer surface side of the boom 8 so as not to obstruct the loader work.

In the embodiment shown in FIGS. 10 to 14, the connecting piece 93 projecting upward from the front link 86 is connected to the middle portion of the bending / extending link 25 by the connecting rod 94, so that the work tool cylinder 29 can be expanded and contracted. However, instead of this, the parallel link 85 is connected to the boom cylinder 17 via a connecting rod or the like, thereby interlocking with the expansion and contraction operation of the boom cylinder 17. Then, the container mounting table 48 may be configured to move up and down.
In the embodiment shown in FIGS. 10 to 14, the container mounting table 48 is supported by the boom 8 so as to be movable up and down on the side of the tractor vehicle body 2 using the parallel link 85. The container mounting table 48 may be supported so as to be movable up and down on the side of the tractor vehicle body 2 by a lifting mechanism other than the parallel link 85.

  The present invention can be used for a loader working machine in which a front loader is attached to the front portion of a tractor.

It is a side view of the loader work machine which shows one Embodiment of this invention. It is a top view of the loader working machine. It is a side view of the fuel supply apparatus part. It is a top view of the fuel supply apparatus part. It is the sectional view on the AA line of the same FIG. It is a top view of the loader working machine which shows other embodiment. It is a left view of the fuel supply device part. It is the BB sectional view taken on the line of FIG. It is CC sectional view taken on the line of FIG. It is a side view of the loader working machine which shows other embodiment. It is a side view of the loader working machine of the state which raised the container mounting base. It is a side view of the loader working machine of the state which accommodated the container mounting base. It is a side view of the container mounting base part. It is a rear view of the container mounting base part.

Explanation of symbols

1 Tractor 2 Tractor Body 3 Front Loader 6 Bonnet 7 Mounting Frame 8 Boom 8
9 Work tool (bucket)
17 Boom cylinder 29 Work tool cylinder 43 Fuel tank 44 Fuel supply port 47 Fuel container 48 Fuel mounting table

Claims (5)

A front loader mounted on the tractor (1), and is pivotally supported by a pair of left and right mounting frames (7) provided on the left and right sides of the tractor body (2) and swingable up and down on each mounting frame (7). that a pair of right and left booms (8), in the front loader and a working tool (9) to swing is rotatably connected to the distal end side of the pair of right and left booms (8),
A front loader characterized in that a container mounting table (48) for mounting a fuel container (47) on a boom (8) is provided in a horizontal state . The container mounting table (48) includes a storage posture (A) stored on the boom (8) side, a fuel container (47), and a fuel supply port (1) of the tractor (1) by the fuel container (47). 44. The front loader according to claim 1, characterized in that the posture can be freely changed to a fuel supply posture (B ) in which fuel can be supplied to ( 44) . The container mounting table (48) is arranged vertically inside the boom (8) facing the tractor vehicle body (2) in the storage posture (A). The front loader described in . The front loader according to claim 2, wherein the container mounting table (48) is arranged vertically on the outside of the boom (8) in the storage posture (A) . The container mounting table (48) is supported by the boom (8) so as to be movable up and down on the side of the tractor body (2), and interlocked with the expansion and contraction operation of the boom cylinder (17) or the work tool cylinder (29). The front loader according to claim 1 or 2, wherein the container mounting table (48) is configured to move up and down .

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