JP4981775B2 - Agricultural machine - Google Patents

Description

  The present invention relates to a farm machine that can be changed to a specification that includes a rops frame in a farm machine such as a tractor and a specification that does not include a rops frame.

In agricultural machines such as tractors, as disclosed in Patent Document 1 (part numbers are those in Patent Document 1), the fender 13 of the rear wheel 2 is provided with a notch 15 opened rearward, and the fender A support column 6 of the lops frame 5 erected from the vehicle body fixing part 10 below 13 is inserted into the notch 15, the lops frame 5 is installed above the operation part 4, and the opening 17 of the notch 15 is formed in the fender 13. 2. Description of the Related Art A farm machine with a Lops frame mounted specification that is closed with a reflector 16 or a lamp attached to the rear end is known.
The Lope's frame 5 disclosed in Patent Literature 1 releases the upper crossbar 7 by rotating the upper crossbar 7 to an arbitrary angle by releasing the engagement of the engaging portion 11 by operating the operation handle 12 and then tilting the upper crossbar 7 backward. Since the height of the top of can be reduced, it is possible to work in greenhouse cultivation or orchard with a greenhouse.

On the other hand, as a farm working machine of a specification without a lops frame for working in a house or in an orchard, for example, one having the structure shown in FIG. 9 has been proposed and implemented.
That is, a fender tail cover 130 that covers the notch 120 formed on the upper surface of the rear end portion of the rear wheel fender 110 is prepared, and the lamp stay 140 is provided with a resin lamp folder 150 and a stop lamp or a back lamp that also functions as a tail lamp. A lamp unit 190 composed of a lamp 160 such as a direction indicator also serving as a hazard lamp and a resin tail lamp cover 180 is fixed. In the case where the farm machine with the above-mentioned specification without a lops frame is used as the specification with the lops frame, it is planned that the fender tail cover 130 is removed and the lops frame is passed through the space formed when the fender tail cover 130 is removed. Is.
JP 7-329663 A

In the specification without the rops frame in the structure of FIG. 9, the space through which the rops frame passes is blocked by the fender tail cover 130, and compared with the specification for the exclusive use without the rops frame in which there is no notch through which the rops frame is inserted. Inferior in strength.
An object of the present invention is to prevent the strength of a rear fender without a rops frame from being lowered while the rear fender structure has a shape that can be used for both a specification without a rops frame and a specification with a rops frame.

  In the configuration of the first aspect of the invention, a notch portion opened rearward is provided at the rear end portion of the left and right rear wheel fenders, and a column portion erected from a vehicle body fixing portion below the rear wheel fender enters the notch portion. The Lops frame is installed so as to block the rear opening of the notch, and the entire notch is closed with the Lops frame removed. It is a farm work machine configured to be able to change specifications to the specification without the rops frame, and in the specification without the rops frame, the rear wheel fender is fitted to the inner surface side of the rear wheel fender from the rear side of the rear end and is notched. A folder that closes the entire part is attached, and a lamp unit or a reflector is attached to the rear wheel fender via this folder.

According to the first aspect of the present invention, in the specification without the lops frame, the rear wheel fender is fitted with a folder that fits to the inner surface side of the rear wheel fender from the rear end rear side and closes the entire notch, and this folder is attached to the rear wheel fender. The lamp unit is attached to the rear wheel fender.
For example, in the specification with the LOP's frame, the LOP's frame (support) is inserted into the notch of the rear wheel fender, and the lamp unit or reflector is attached to the rear end of the rear wheel fender. When the specification without a rops frame is used, the notch part of the rear wheel fender can be closed by the folder if the folder is attached to the rear wheel fender without attaching the rops frame (post). A unit or reflector can be attached. This allows the lamp unit or reflector to be attached to the rear end of the rear wheel fender without changing the rear wheel fender (notch) in the specification without the Lobs frame. The same fender shape can be used with the frameless specification.

In the specification without a rops frame, the folder to which the lamp unit or reflector is attached is also used as a member that closes the notch through which the rops frame is inserted in the specification with the rops frame. While adopting the same shape with a notch and a frame-less specification, the entire notch can be closed by the folder, and the entire notch is closed by fitting the folder to the inner surface of the rear wheel fender. The rear wheel fender that has a notch can be reinforced by a folder, compared to a dedicated rops frame-less specification that does not have a notch for inserting a rops frame. Without lowering the strength, the rear fender and the Lobs frame There is an advantage that can be shared and those of no over-time specification.
In particular, when there is an overwhelmingly large number of specs equipped with a lops frame, there is an advantage that a model without a lops frame can be manufactured at low cost.

In addition, it is not necessary to provide a member that closes the notch separately from the folder to which the lamp unit or reflector is attached, and the notch is closed by the folder. It was possible to change the specifications without increasing the number of parts, although it could be made more durable.
That is, in the first invention, since the notch portion of the rear wheel fender is closed with the lamp unit mounting folder, the number of parts and the mounting effort are not increased, so the productivity is reduced. There is an advantage that it can be manufactured without making it.

  According to the second aspect of the present invention, in the configuration of the first aspect, the folder is mounted on the inner surface side of the rear wheel fender in a shape along or substantially along the inner surface shape of the rear wheel fender.

  According to the second aspect of the present invention, since the folder is shaped along or substantially along the inner surface shape of the rear wheel fender, the folder portion is attached to the inner surface of the rear wheel fender, It becomes a double structure, works more effectively for reinforcing the fender, and helps to strengthen the rear wheel fender.

  According to the third aspect of the present invention, in the configuration of the first aspect or the second aspect of the present invention, a mounting portion for a license plate is integrally provided in the folder.

  According to the third invention, it is possible to reduce the number of parts and the number of mounting steps for mounting the lamp unit and the license plate.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is an overall side view of a tractor according to an embodiment of the present invention. As shown in the figure, the tractor according to the embodiment of the present invention includes a pair of left and right steering operations and driveable front wheels 1 and 1, a pair of left and right driveable rear wheels 2 and 2, and a vehicle body front portion. A self-propelled vehicle having an engine 3 provided, a driving unit 6 equipped with a steering wheel 4 and a driver's seat 5, and a lops frame 7 located near the rear side of the driver's seat 5; A link mechanism 10 supported by a transmission case 9 constituting the rear part of the vehicle body frame, and a power take-out shaft 11 provided at the rear part of the transmission case 9 are provided. The link mechanism 10 includes a lift arm 12 supported on both sides of the upper part of the mission case 9 so as to be swingable up and down, and a lower link supported on both sides of the lower part of the mission case 9 so as to be swingable up and down. 13, and left and right lift rods 14 that connect the left and right lift arms 12 and the left and right lower links 13.
This tractor is configured such that a rotary tiller (not shown) is connected to the rear of the vehicle body by the link mechanism 10 so as to be movable up and down, and power is transmitted from the power take-out shaft 11 to the rotary tiller. For example, various riding-type work machines are configured by connecting various working devices to the rear portion of the vehicle body so as to be lifted and driven.

  The engine bonnet 41 includes a pair of left and right horizontal hoods 42, a front grill 43 positioned in front of both horizontal hoods 42, 42, and an upper hood 44 positioned above the horizontal hood 42 and the front grill 43. .

  The upper bonnet 44 is connected to a rear bonnet portion 53 formed of a gate-like frame in the longitudinal direction of the vehicle body so as to be swingable up and down around the axis of the vehicle body sideways, and is spaced upward from the horizontal bonnet 42 and the front grille 43. Then, it opens so as to open upward, and by swinging to the lowering side, it is lowered to the vicinity of the upper ends of the horizontal bonnet 42 and the front grille 43 and is closed to cover the upper side of the engine 3.

When the upper bonnet 44 is closed, the upper bonnet 44 is locked in a closed state by a closing hook 46 provided on the front end side of the upper bonnet 44 as shown in FIG. The closing hook 46 is supported by a stay 47 that spans the left and right side plate portions of the upper bonnet 44. Left and right headlights 48 are attached to the front end portion of the upper bonnet 44 by screws 45. A sheet metal headlight stay 49 constituting the lower part of the upper bonnet 44 that supports the headlight 48 can be separated from the upper bonnet body 50, and the left and right intermediate portions 51 at the front end of the upper bonnet body 50 and the left and right of the stay 47. It is comprised so that screw 45 can be fixed to a location. The headlight 48 can be secured to the stay 47 and a stay upper frame (not shown) with screws 45 in a state where the headlight stay 49 is mounted on the upper bonnet body 50.
Since the upper bonnet 44 is divided into the upper bonnet main body 50 and the headlight stay 49, the front bonnet main body 50 can be formed into a simple shape that easily forms the front portion of the upper bonnet main body 50. It can be manufactured at low cost by sheet metal pressing or bending. Thereby, compared with the case where it comprises so that the front bonnet main body 50 front part may be covered with a resin-made member, die cost etc. can be saved, for example.

  A front lamp unit 52 provided with a direction indicator that also serves as a front small lamp and a hazard lamp is attached to left and right horizontal bonnet portions 54 of a rear bonnet portion 53 via stays 55.

The stay 55 has a notch 57 formed in a single plate-like sheet metal plate 56 as shown in FIG. 6 and a hole 58 through which wiring of lamps constituting the front lamp unit 52 passes. 59, attachment holes 60 and 61 for attaching the stay 55 to the horizontal bonnet portion 54, and attachment holes 62 and 63 of the front lamp unit 52 are formed by drilling or punching, and a folding line indicated by a two-dot chain line 5 is bent into a shape as shown in the perspective view of FIG. 5, and the bottom inner side edge of the inclined upper piece 66 and the outer surface of the vertical side piece 67 are integrally manufactured by fillet welding. .
The stay 55 for mounting the front lamp unit 52 is cut and bent as described above, and is manufactured by simple one-bead welding, so that the stay 55 having high strength can be easily manufactured with a simple structure. be able to.

As shown in FIGS. 1 and 2, the lops frame 7 includes a gate-shaped support column 15 made of steel pipe material and a base 16, and the base 16 is fastened and fixed to the transmission case 9. By changing the state to the state in which the rops frame 7 is attached or not attached, the specification can be changed between the specification without the rops frame 7 without the rops frame 7 and the specification with the rops frame 7 attached.
That is, in the specification without the rops frame, the rops frame 7 is not mounted from the manufacturing stage, but in the rops frame mounting specification, the rops frame 7 is mounted from the manufacturing stage.

  As shown in FIG. 7, the rear end portions of the left and right rear wheel fenders 24 are each formed in a U-shape facing downward in a front view, and are formed with a notch 25 that opens rearward. The lops frame 7 is disposed so as to pass through the notch 25.

[Lops frame wearing specifications]
As shown in FIG. 7, in the lops frame mounting specification, with the tail lamp cover 38 of the lamp unit 28 removed from the lamp folder 36, the lamp folder 36 is mounted from the rear end of the rear wheel fender 24 and the rear wheel fender 24 is mounted. After fixing the lamp holder 36 to the rear wheel fender 24, the tailpiece cover 38 is covered. In this manner, the rear opening 26 of the notch 25 formed at the rear end of the rear wheel fender 24 is closed by attaching the lamp unit 28.

  The lamp unit 28 includes a lamp holder 36 having a reflecting mirror (not shown) on the back surface, and a lamp 37 such as a stop lamp that also serves as a tail lamp, a back lamp and a hazard lamp that serves as a hazard lamp, and the like. The tail lamp cover 38 is fitted to cover the lamps 37.

[Lops frameless specification]
As shown in FIG. 8, in the specification without the lops frame, the lops frame 7 has not been attached since the factory shipment stage, and the notch 25 is closed and the lamp unit 28 (a shape different from the specification with the lops frame) is installed. A sheet metal folder 27 is provided.
That is, in the specification without the lops frame, a folder 27 that can close the notch 25 formed to pass the lops frame 7 through the rear wheel fender 24 is mounted from the rear end of the rear wheel fender 24 to be attached to the rear wheel fender. Bolt to 24. On the lower surface of the folder 27, there is provided an attachment portion 31 having an attachment hole 30 through which a bolt 29 for attaching the lamp unit 28 is inserted. The license plate 32 is provided with a mounting portion 34 having a mounting hole 33 through which the bolt 29 is inserted. Thus, the bolt 29 provided on the lamp unit 28 is inserted into the attachment hole 33 provided on the license plate 32 and the attachment hole 30 provided on the folder 27 so that the lamp unit 28 can be attached to the folder 27 together with the license plate 32. It is. The license lamp 40 is bolted to the license plate 32.

  Therefore, in the specification without the lops frame, when the folder 27 is mounted from the rear end of the rear wheel fender 24, the entire notch 25 formed at the rear end of the rear wheel fender 24 is the upper surface of the folder 27. It will be blocked by. The lamp unit 28 and the license plate 32 are attached to the folder 27 by bolting.

  The folder 27 is formed symmetrically. When the right folder 27 shown in FIG. 8 is attached, the bolt hole 24a formed on the upper surface of the rear wheel fender 24 and the left and right bolts formed on the folder 27 are provided. A bolt 69 is inserted into the left bolt hole 27 a of the holes 27 a and 27 b to fix the folder 27 to the fender 24.

[Another embodiment]
In the best mode for carrying out the invention, the upper surface and the left and right side surfaces of the folder 27 are formed along the upper surface of the rear wheel fender 24 and the inner surfaces of the left and right side surfaces. Alternatively, the upper surface and the left and right side surfaces of the folder 27 may be shaped so as to be able to be attached to the upper surface and the inner surfaces of the left and right side surfaces of the rear wheel fender 24, or completely different from the shape of the rear wheel fender 24. The shape may be different.

  Instead of the lamp unit 28, the reflector unit (not shown) and the rear wheel fender 24 (folder 27) may be attached in the rops frame mounting specification and the rops frame-less specification. The lamp unit 28 having the same shape (specification) may be attached to the rear wheel fender 24 (folder 27) in the specification with the Lops frame and the specification without the Lops frame.

  In the best mode for carrying out the invention, an example in which the base portion 16 of the lops frame 7 is fastened and fixed to the outer surface of the transmission case 9 is shown in the specification of the mounting of the lops frame. The base portion 16 of the lops frame 7 may be detachably fixed with bolts and nuts via the mounting bracket. The transmission case 9 for directly fixing the base portion of the lops frame 7 and the mounting bracket are collectively referred to as a vehicle body fixing portion.

Overall side view of tractor Schematic rear view of tractor The exploded perspective view which shows the principal part of the assembly structure of a headlight The principal part perspective view which shows the assembly | attachment state of a headlight The exploded perspective view which shows the principal part of the assembly structure of a front lamp unit Development view showing the processed plate of the stay for mounting the front lamp unit (A) The figure is an exploded perspective view showing the main part of the assembling structure of the rear lamp unit of the Lops frame mounting specification, (b) is the main part perspective view of the assembled state of the unit. (A) The figure is an exploded perspective view showing the main part of the assembly structure of the rear lamp unit of the specification without the lops frame, (b) the main part perspective view of the assembled state of the unit The exploded perspective view which shows the principal part of the assembly | attachment structure of the rear lamp unit of the specification without a conventional lops frame

Explanation of symbols

6 Driving part 7 Lops frame 9 Car body fixing part (mission case)
15 Supporting part 24 Rear wheel fender 25 Notch part 26 Opening part 27 Folder 28 Lamp unit 31 Mounting part 32 License plate

Claims (3)

The rear end of the left and right rear fenders is provided with a notch that opens rearward, and a column that is erected from the body fixing part below the rear wheel fender is inserted into the notch and is installed above the driving part. A lops frame mounting specification in which the rear opening of the notch is closed and a no-rops frame specification in which the entire notch is closed with the rops frame removed is provided. Agricultural machines configured to allow specification changes to
In the specification without a rops frame, the rear wheel fender is fitted with a folder that fits to the inner surface side of the rear wheel fender from the rear end rear side and closes the entire notch, and the lamp unit or Agricultural work machine configured to attach the reflector to the rear fender.   The agricultural work machine according to claim 1, wherein the folder is mounted on the inner surface side of the rear wheel fender in a shape along or substantially along the inner surface shape of the rear wheel fender.   The agricultural working machine according to claim 1 or 2, wherein a mounting portion for a license plate is integrally provided in the folder.

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