JPS6135494Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a rear wheel fender reinforcement structure for a vehicle such as a tractor.

In a vehicle, such as a tractor, a driver's seat is provided on the vehicle body between a pair of left and right rear wheel fenders, and a floor cover is provided below the driver's seat to cover the vehicle body, and a floor cover is provided that stands up from the rear end of the floor cover to open the driver's seat from the rear. There is one installed across the rear cover and the pair of left and right rear wheel fenders. In such a tractor, when providing a safety frame or the like, it is most desirable to provide it on the pair of left and right rear wheel fenders since the vehicle body is covered with a floor cover, a rear cover, etc. However, although the left and right rear wheel fenders are connected to each other by a floor cover and a rear cover, they are not strong enough, and therefore, in the event of a rollover, a lateral impact may be applied from the safety frame to the rear wheel fender. In addition, there was the problem that the rear wheel fender was deformed and damaged.

The purpose of this invention is to solve these conventional problems, and its features are that a driver's seat is provided on the vehicle body between a pair of left and right rear wheel fenders, and In a vehicle, a floor cover that covers the vehicle body below the seat, and a rear cover that stands up from the rear end of the floor cover and covers the driver's seat from behind are provided astride between a pair of left and right rear wheel fenders,
Separately from the floor cover and rear cover, a reinforcing member is provided that connects the pair of left and right rear wheel fenders, and this reinforcing member is provided with a reinforcing member that faces the vehicle body side with a lateral gap and is lateral to the rear wheel fender. The main feature is that a stopper is provided that comes into contact with the vehicle body when an external force is applied.

Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment. In FIGS. 1 and 2, 1 is a tractor body, which is composed of a transmission case, etc. A rear axle case 3 is attached, and a wheel disc 6 of a rear wheel 5 is attached to a rear axle 4 which is rotatably held by the rear axle case 3. 7
is a hydraulic device for lifting and lowering a work machine, has a pair of left and right lift arms 8, and is provided on the tractor body 1. Reference numeral 9 denotes steps, which are provided in a pair on both sides of the tractor body 1. Rear wheel fenders 10 cover the rear wheels 5 from the inside, and there are a pair of left and right rear wheel fenders, each of which is attached to the rear axle 3 and the step 9. That is, the rear wheel fender 10 has a mounting plate 11 at the rear, and the mounting plate 11 is fastened to a mounting base 12 on the rear axle case 3 via bolts 13, vibration isolating material 14, and the like.
Note that the rear wheel fender 10 and the mounting plate 11 are reinforced by a reinforcing bracket 15. The front end of the rear wheel fender 10 is fixed to the outer surface of the step 9 with bolts or the like. A driver's seat 16 is disposed above the tractor body 1 between a pair of left and right rear wheel fenders 10, and the driver's seat 16 is mounted on a floor cover 18 via a support device 17. The floor cover 18 is the tractor body 1
and covers the hydraulic system 7 from above, and is connected to a pair of left and right rear wheel fenders 10,
The front end of this floor cover 18 is attached to the front reinforcing member 19 at a position in front of the hydraulic device 7, and the rear end is attached to the front reinforcing member 19 at a position in front of the hydraulic device 7.
They are each fixed to the rear reinforcing member 20 at an upper position. The reinforcing members 19 and 20 have a rectangular cylindrical shape, for example, as shown in FIG. 3, and have mounting plates 21 and 22 at both ends.
0 with two bolts. A pair of stoppers 23 are fixed to the lower surface of the intermediate portion of the rear reinforcing member 20, and a fixing member 24 is provided on the hydraulic device 7 so as to be located between the pair of stoppers 23. A predetermined gap W is provided between each stopper 23 and the fixing member 24. A rear cover 25 stands up from the rear end of the floor cover 18 and is provided to cover the driver's seat 16 from behind, and both ends of the rear cover 25 are connected to a pair of left and right rear wheel fenders 10, respectively. Reference numeral 26 denotes a safety frame, which includes an upper frame 27 and front, rear, left, and right columns 28, and is positioned above the driver's seat 16, with each column 28 attached to the upper surface of the top of a pair of left and right rear wheel fenders 10. ing. The rear wheel fender 10 has a safety frame 26.
It has a reinforcing member in the vertical direction sufficient to withstand the installation of the A lateral cylindrical portion 29 is formed at the upper end of the rear cover 25 .

According to the above configuration, the pair of left and right rear wheel fenders 10 are connected to each other via the pair of front and rear reinforcing members 19, 20, the floor cover and the rear cover 25, so that they are constrained to each other through these. Therefore, it is possible to increase the strength while reducing the burden on the attachment portion between the attachment plate 11 and the attachment base 12. Therefore, even if a lateral impact is applied to the rear wheel fender 10 through the safety frame 26 when the tractor body 1 rolls over, the rear wheel fender 10 is less likely to be deformed or damaged, and the safety margin provided by the safety frame 26 is reduced. We can secure enough. In other words, when force F is impulsively applied to the safety frame 26 due to a rollover, from the left rear wheel fender 10 to the reinforcing member 1.
9, 20, the impact is propagated to the right rear wheel fender 10 via the floor cover 18 and rear cover 25, and in addition to being partially borne by the right rear wheel fender 10, the impact is also transmitted to the rear axle case 3, the step 9, and the tractor. Since the entire structure has a rigid frame structure with the vehicle body 1 and the like interposed therebetween, mutual deformation of the rear wheel fenders 10 can be prevented or reduced.

Further, when the impact force is large, the first stage of impact absorption is performed as described above, and as a result, when the rear wheel fender 10 falls down slightly, the left stopper 23 of the rear reinforcing member 20 moves to the fixing member 24. After that, the impact can be borne by the tractor body 1 from the rear reinforcing member 20 via the stopper 23 and the fixing member 24. Therefore, deformation of the rear wheel fender 10, etc. can be minimized. , and it is possible to ensure the safety margin of the safety frame 26.

The fixing member 24 may be attached directly to the tractor body 1 in addition to the hydraulic device 7 shown in the embodiment, or the hydraulic device 7 can be used as the fixing member. Furthermore, a pair of fixing members 24 may be provided on the left and right sides, and one stopper 23 of the reinforcing member 20 may be provided between them. Reinforcement member 1
In addition to 9 and 20, another reinforcing member may be provided between them. Further, each of the reinforcing members 19 and 20, particularly the rear reinforcing member 20, may be provided spaced downwardly from the floor cover 18 and the like.

According to the present invention, in addition to the floor cover and the rear cover, a reinforcing member is provided to connect the pair of left and right rear wheel fenders, so the mutual strength of the rear wheel fenders is significantly improved compared to the conventional one. . In addition, the connecting member that connects the left and right rear wheel fenders,
A stopper is provided that faces the vehicle body side with a lateral gap and comes into contact with the vehicle body side when a lateral external force is applied to the rear wheel fender. Therefore, the external force in the lateral direction can be received by the vehicle body side, and it can sufficiently withstand mounting of a safety frame or the like on the rear wheel fender. Moreover, since there is usually a lateral gap between the stopper and the vehicle body side, slight vibrations from the vehicle body side are not transmitted to the rear wheel fender side via the stopper and reinforcing member, and the rear wheel Noise generation on the fender side can also be prevented.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a sectional side view, FIG. 2 is a sectional rear view, and FIG. 3 is a perspective view of a reinforcing member. 1... Tractor body, 3... Rear axle case, 1
0...Rear wheel, 16...Driver's seat, 18...Floor cover, 19, 20...Reinforcement member, 23...Stopper, 24...Fixing member, 25...Rear cover, 2
6...Safety frame.

Claims (1)

[Scope of utility model registration request] A driver's seat 16 is provided on the vehicle body 1 between a pair of left and right rear wheel fenders 10, and a floor cover 18 that covers the vehicle body 1 below the driver's seat 16 is provided.
A rear cover 25 that stands up from the rear end and covers the driver's seat 16 from behind is connected to a pair of left and right rear wheel fenders 1.
0, a reinforcing member 20 is provided that connects the pair of left and right rear wheel fenders 10 in addition to the floor cover 18 and the rear cover 25, and this reinforcing member 20 is provided with a reinforcing member 20 that connects the left and right rear wheel fenders 10. This structure for reinforcing a rear wheel fender of a vehicle is characterized in that a stopper 23 is provided which faces the rear wheel fender 10 with a gap W in the direction and comes into contact with the vehicle body 1 side when a lateral external force is applied to the rear wheel fender 10.