JPS6326283Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a license plate mounting structure for a tractor.

Tractors are required to be equipped with a license plate, just like passenger cars, and the license plate must not be easily removable. Therefore, the license plate is usually riveted to the vehicle body, but since the support part of the plate has various functions in the case of a tractor, there are restrictions on where it can be attached, and A structure in which the plates were directly riveted to the vehicle body had a problem in terms of productivity.

The present invention focuses on the fact that there is a recent tendency for tractors to be equipped with upright guard frames such as safety frames, sunshade frames, and cabin frames, from the viewpoint of emphasizing safety and improving operating comfort. This was devised for the purpose of making it possible to easily and firmly attach a license plate using a guard frame.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1 and 2, a tractor 1 has an engine 2 mounted on its front portion, and a transmission case 3 connected to the engine 2 to form a vehicle body 4 of an integral structure in the figures. A hydraulic device 5 for lifting and lowering the work machine is mounted on the rear of the vehicle body 4, and
A driver's seat 7 is provided via a floor seat 6 covering the hydraulic system 5, and a control handle 8, a gear shift operating device 9, a pedal device 10 such as a clutch, a brake, etc. are provided in front of the driver's seat 7 for operation. It constitutes the device 11.

The traveling device 12 of the tractor 1 is illustrated as having two axes and four wheels in the figure, and the figure omits the front wheels and shows a pair of left and right rear wheels 13. The rear wheels 13 are supported by each outer end of a rear axle case 14 extending from the vehicle body 4, and are driven via a rear axle 15.

An elevation part of a fender device 16 is provided on the inside of each rear wheel 13, and the upper peripheral area is protected by the top surface of the rear wheel fender device 16. It is designed to have a mud-proofing function.

Each of the rear wheel fender devices 16 has a rear axle case 14 at its lower part by a mounting device (not shown).
The fender device 16 is erected and removably fixed to the fender device 16, and the lower front portion of the fender device 16 is connected to the step 17 of the vehicle body 4. In addition, in the illustrated example, the fender device 1
The floor sheet 6 has a step 17 and is supported by the vehicle body 4 together with a foot guard 18, and both ends of the floor sheet 6 are attached to and detached from each other using fasteners 19 shown in FIG. They are freely connected. The floor seat 6 includes a mud-proof cover 20 that stands upright at the rear of the driver's seat 7, and a pair of left and right mud-proof covers 20 are detachably attached to this mud-proof cover 20 using fasteners 22. The pair of covers 21 are provided to avoid interference with the lift arm of the hydraulic device 5, etc.

A guard frame 23 is erected and fixed on the vehicle body 4 to protect the driver's seat 7. In the embodiment, the guard frame 23 is shown as having a so-called four-column shape and equipped with a sunshade member on the canopy.

A pair of left and right rear columns 24 of the guard frame 23
are removably connected to the rear axle case 14 via attachment devices 25 at the lower portions thereof, and a relay attachment device 26 is provided at the middle part of the rear strut 24 in the height direction. It is supported and attached to the canopy of the wheel fender device 16 and extends upwardly.

Further, the lower portions of the pair of left and right front struts 27 of the guard frame 23 are connected to both sides of the midsection of the vehicle body 4, such as the engine or clutch housing, via attachment devices 28, so that the left and right front struts 27 of the guard frame 23 are connected to both sides of the midsection of the vehicle body 4, such as the engine or clutch housing, so that the rear pillars 27 are tilted upward as shown in FIG. Each pillar 2 of the guard frame 23 is erected.
A canopy frame 29 having a rectangular planar shape from front to back and left and right is installed between the upper ends of the sunshades 4 and 27, and a sunshade membrane 30 is removably stretched across the entire surface via the frame 29.

As shown in FIG. 3, the mounting device 25 for the rear strut 24 is constructed by welding a cylindrical column body 32 together with a reinforcing plate 33 to a pair of upper and lower boards 31, and the board 31 has a check chain mounting piece 34 for the lower link. Further, the substrate 31 has a plurality of mounting holes 35 arranged vertically and oppositely to each other.

As shown in FIGS. 1 and 2, the base plate 31 of this mounting device 25 is fitted into the rear axle case 14, and bolts 36 are inserted into the mounting holes 35, so that the cylindrical column 32 is erected with an upward slope at the rear.

The relay mounting device 26 for the rear strut 24 includes an intermediate frame 37, and the lower part of the intermediate frame 37 is inserted into and removed from the cylindrical column body 32 described above in a so-called nested structure and fastened with bolts 38, as shown in FIG. As shown, it extends obliquely toward the outside of the vehicle body, and as shown in FIG. 1, it extends obliquely upward and forward.

The upper end of the intermediate frame 37 is a flat cylindrical support 3
9, a base plate 40 is welded to the lower part of the cylindrical support 39, and the plate 40 is further welded to the middle of the intermediate support (frame) 37 to form a substantially triangular relay as shown in FIGS. 2 and 3. The base plate 4 of the cylinder support 39 constitutes the mounting device 26.
The same plate 40 is superimposed on the upper surface of the fender through a mounting hole 41 provided at 0, and is firmly connected with bolts 42.

A license plate attachment device 43 is provided at one side of the relay attachment device 26, that is, in the middle of the left rear column 24 located above the rear wheel fender device 16 in the embodiment, and the license plate 44 is attached to the vehicle body using the attachment device 43. It is provided in

That is, as shown in FIGS. 4 and 5, a connecting body 45 is bridged and fixed to the triangular portion of the cylinder support 39 and the intermediate support 37, and a plurality of bolts 46 are welded to the guard frame via the connecting body 45. There is. On the other hand, a plurality of mounting holes 50 are formed at the bottom of the support portion 48 of a rectangular mounting plate 49 that has a mounting base surface 47 and a support portion 48 recessed in the shape of a bowl with a bottom and a wall around the entire circumference. The bottom part of the support part 48 is overlapped with the connecting body 45, and the fixed bolt 46 is inserted into the mounting hole 50, and the nut 52 is inserted into the protruding part of the bolt 46 in the support part 48 through a plurality of washers 51, etc. The mounting plate 49 is fixed to the guard frame by screwing. At this time, the recess depth of the support portion 48 of the mounting plate 49 is set to such a depth that the end surfaces of the nuts 52 and bolts 46 are sunk below the mounting base surface 47. has been done.

Nuts 53 are welded to the upper left and right sides of the mounting plate 49, and upper-opening hook-shaped clamping pieces 54 are welded to the lower left and right sides. Desirably, the plate 44 is forcibly fitted through elastic deformation to overlap the mounting base surface 47, and the fastener 55 is attached to the nut 53.
In short, the fastener 55 is immovably fixed by screwing together and caulking, or by riveting or welding, and the nut 52 is roughly covered by the license plate 44.

Furthermore, the mounting plate 49 has a lamp mounting bracket 56, and a license plate illumination lamp 57 is detachably mounted on the bracket 56.
Furthermore, a mounting bracket 59 for a blinker lamp 58 is welded to the outside of the pair of left and right cylindrical supports 39 in an overhanging manner, so that the lamp 58 can be attached or detached.

Furthermore, the rear strut 2 including the relay mounting device 26
4 has a nested structure in which an upper column body 60 is inserted into and removed from the cylindrical column 39 of the device 26, and can be slidably fixed in the longitudinal direction with a fastener 61,
A bifurcated fastener 62 provided at the top of the upper column 60
It can be attached to and detached from the canopy frame body 29 via a fastener 63.

In addition, as shown in FIG. 1, the front column 27 is fastened to the cylindrical portion 28A of the mounting device 28 with a bolt 64 so that it can be inserted into and removed from the cylindrical portion 28A. 29, it can be attached and detached using a bolt (not shown).

In addition, in the middle of this front support column 27, there is a headlight 65.
In addition, a rearview mirror device 66 is provided at the top.

Furthermore, as shown in FIGS. 2 and 3, the intermediate column 37
A connecting column body 67 is installed inwardly extending in each of the
This column 67 is fastened to a cylindrical connecting body 68 with bolts 69, and the width of the guard frame can be adjusted and fixed there.

In the above embodiments and illustrations, the guard frame 2
3 is exemplified as a so-called four-pillar shape in front, rear, left and right, but this may be a so-called two-pillar shape consisting of a pair of left and right rear struts. Further, the rear strut 24 has its lower part connected to the rear axle case 14 via a mounting device 25, and its intermediate portion connected to the fender device 16 via a mounting device 26; Also, although the canopy frame 29 is configured to be height adjustable as shown in FIG. 1, it may be of a non-adjustable type. Also,
Although the rear strut 24 is inclined upwardly in front of the fender to protect the control device, the column 24 may be inclined upwardly at the rear to increase the guard area.

In summary, in the present invention, in the tractor 1 in which the guard frame 23 for protecting the driver's seat 7 is installed on the vehicle body 4, the fastening bolt 46 is fixed to the guard frame 23 at a position above the rear wheel fender device 16.
The fastening bolt 46 is inserted into the bottom of the support part 48 of the mounting plate 49, which is composed of a mounting base surface 47 and a support part 48 which is bottomed from the base surface 47 and has a wall around the entire circumference. Within the support portion 48, the mounting plate 49 is mounted and fixed at a position above the rear wheel fender device 16 of the guard frame 23 by screwing the nut 52 onto the protrusion of the fastening bolt 46, and the mounting base 47 of the mounting plate 49 is fixed. A license plate 44 is polymerized and fixed to the nut 52.
Since the license plate 44 is installed on the guard frame 23 erected on the vehicle body 4 at a position above the rear wheel fender device 16, it cannot be directly attached to the vehicle body 4. Compared to the case, the number plate 44 is mounted at a higher position, mud and dirt can be prevented from adhering, and visibility is improved.

In addition, the mounting base 47 and the support portion 4 recessed from this
8 is fixed to the guard frame 23, the number plate 44 can be fixed at a predetermined position regardless of the tractor model, and the mounting plate 49 is fixed to the guard frame 24. Since the mounting plate 49 is fixed via the bolts 46 and nuts 52, no special structure is required for mounting the mounting plate 49, and productivity can be improved. If welded, the nut 52 is covered, so the theft of the license plate 44 can be substantially prevented.

Further, since the support part 48 has a bottom and has a wall around the entire circumference, and the nut 52 mounting part is covered by the license plate 44, rainwater does not enter the inside of the recessed support part 48. The intrusion of mud and the like can be effectively prevented, thereby preventing the occurrence of rust at the nut 52 mounting portion, resulting in high durability.

[Brief explanation of the drawing]

Fig. 1 is a side view of a tractor with a safety frame to which the present invention can be applied, Fig. 2 is a rear view of the same, Fig. 3 is a perspective view of the main parts, Fig. 4 is an exploded perspective view of the license plate mounting part, Fig. 5 The figure is a sectional view after the plate is attached. 1... Tractor, 4... Vehicle body, 23... Guard frame, 44... License plate, 46...
Fastening bolt, 47...Mounting base, 48...Support part, 49...Mounting plate, 52...Nut.

Claims (1)

[Scope of utility model registration request] Guard frame 2 that protects the driver's seat 7 on the vehicle body 4
3 is set upright, a fastening bolt 46 is fixed to a position above the rear wheel fender device 16 of the guard frame 23, and a fastening bolt 46 is fixed to a position above the rear wheel fender device 16 of the guard frame 23.
The support part 4 of the mounting plate 49 consists of a support part 48 which is bottomed from 7 and is recessed with a wall around the entire circumference.
The fastening bolt 46 is inserted into the bottom of the support part 48 , and the mounting plate 49 is mounted and fixed at a position above the rear wheel fender device 16 of the guard frame 23 by screwing the nut 52 onto the protruding part of the fastening bolt 46 within the support part 48 . A license plate mounting structure for a tractor, characterized in that a license plate 44 is superposed and fixed to a mounting base surface 47 of a mounting plate 49, and the nut 52 is covered with the license plate 44.