JPH0125749Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Field of Use The present invention relates to a reinforcement device for a left and right side body frame type tractor.

The present invention is for reinforcing a fuselage frame having side frames that protrude forward from both left and right sides by attaching the rear end to the rear transmission case box.
A standing wall is provided on the side frame, and left and right connecting plates are provided behind it, and both of these plates firmly reinforce the fuselage frame.

Prior Art There is no such type of reinforcing device, and in the past, the left and right side frames were simply connected by a reinforcing body.

Problems to be Solved by the Invention In such conventional structures, in order to achieve a rigid structure, it is necessary to connect them with strong reinforcing bodies, and the strong ones are heavy, which is a factor in increasing costs.

Means for Solving the Problem The purpose of the present invention is to improve the reinforcing force by limiting the mounting direction and mounting location even for thin-walled reinforcing bodies. measures were taken. That is, the rear parts of the left and right side frames 3 and 4 of the body frame 2 are attached to the transmission case box frame 1 provided at the rear of the body, and the left and right side frames 3 and 4 are shaped so that their upper parts open outward from the lower part, and Mounting surfaces 5 and 6 extending substantially horizontally in the left-right direction are provided on this upper surface, and a standing wall body 8 having a bulging portion 7 toward the rear in the center is mounted on the mounting surfaces 5 and 6, and furthermore, the left and right side frames are attached. From the bent edges 9, 9 which are wider than those of 3 and 4 and whose both ends are bent downward, and the front wall edges 10, 10 which are formed by bending the remaining left and right front edges upward after removing the corresponding portions of the bulging portion 7. The structure of the body frame reinforcing device for a mobile vehicle is characterized in that a left and right connecting plate 12 having a substantially flat floor surface 11 is attached to the rear of a vertical wall body 8 via an overlapping part.

Effect of the invention According to this technical means, the mounting surfaces 5 and 6 provided on the upper surfaces of the left and right side frames 3 and 4 are mounted by overlapping the lower part of the vertical wall body 8 and the front wall edge 10 of the left and right connecting plate 12. , left and right side frames 3 and 4 whose upper portions are configured to open outward.
Since the upper part of the holder does not bend outward or inward, a strong reinforcing effect can be obtained.

Example The embodiment of the present invention described above will be described.

The illustrated example shows this invention incorporated into an agricultural tractor 13, in which rear axle cases 16, 16 extend outward from the rear transmission case 15 among the front and rear transmission cases 14, 15 provided at the rear of the machine.
is provided protrudingly. Rear axle case 16, 16
A rear end portion of a body frame 2 made of sheet metal and projecting forward is fastened to a transmission case box frame 1 such as a rear transmission case 15 by fasteners 17, 17. Reference numeral 18 denotes a mounting plate that is integrally provided at the rear ends of the left and right side frames 3 and 4 of the fuselage frame 2, and the fastener 1
7 and 17 are provided with openings 19 and 19 for insertion.

The left and right side frames 3 and 4 have mounting surfaces 5 and 6 extending substantially horizontally in the left and right directions on their upper surfaces, and when viewed from the rear, the upper portions are opened outward in an inverted eight shape. At the front, the left and right sides are connected by a bottom plate 20, forming a body frame 2 shaped like the bottom of a boat. Also, the left and right side frames 3 of this boat bottom-shaped part,
4 is narrow, and the width of the left and right side frames 3 and 4 facing each other is wide in the portion without the bottom plate 20, and these front and rear portions are connected by inclined mounting surfaces 21 and 22.

A lower plate 25 of an upright wall 8 having a rearward bulging portion 7 in the center is attached to approximately the front end portions of the wide left and right side frames 3, 4 by fasteners 23, 23. 24, 24 are mounting holes for inserting the fastener 23.

On the lower plate 25 of the standing wall 8, there are bent edges 9, 9 which are wider than the left and right side frames 3, 4 and whose both ends are bent downward, and a portion corresponding to the central bulge 7 of the standing wall 8. A cutout portion 26 is provided, and this cutout portion 26
Front wall edges 10, 1 with the left and right front edges bent upward
Left and right connecting plate 1 having a substantially flat floor surface 11 consisting of 0
2 are superimposed together and then tightened with fasteners 27, 27 or the above-mentioned fasteners 23, 23. 28, 28 are insertion holes for inserting the fastener 27. The bent edge 9 continues to front side edges 29, 29 which protrude further forward than the front wall edge 10. The inner end of the front wall edge 10 and both sides of the vertical wall body 8 are fastened with fasteners 41, 41, . . . . 42 is a mounting hole.

30 is an engine, which has narrow left and right side frames 3,
4 through an elastic body (not shown). Also, a clutch housing 31 is provided at the rear end.
is installed. This clutch housing 3
1 is located below the bulge 7 of the standing wall 8, and the rear of the bulge 7 and the opening of the cutout 26 are covered with a cover 38. 32 is a radiator, and 33 is a cooling fan. Further, a universal joint 34 is provided between the clutch housing 31 and the front transmission case 14 to transmit power.

Reference numeral 35 is a window provided in the center of the front wall edge 10, through which the driver sitting in the driver's seat 36 can see around the front wheels 37 during work. 38 is the rear wheel, 39
is a fender, and 40 is a handle.

Although the flat plate floor surface 11 is approximately horizontal, ribs may be provided in the vertical or horizontal direction for reinforcement. This upper surface serves as a footrest for the driver.
Although not shown, the left and right side frames 3, 4 and the bent edges 9, 9
The flat plate floor surface 11 located between them has an opening for inserting a clutch petal and a brake pedal, and the treads of the petals whose rotation centers are provided on the left and right side frames 3 and 4 are on the flat plate floor surface. It protrudes above 11. The bent edges 9, 9 not only have a reinforcing effect, but also serve to cover and protect the shaft support of the petals.

[Brief explanation of drawings]

The figure shows one embodiment of the present invention,
FIG. 1 is a plan view of the main parts, FIG. 2 is a side view, and FIG. 3 is a perspective view. In the figure, numeral 1 is the transmission case box frame, 2 is the fuselage frame, 3 and 4 are the left and right side frames, 5 and 6 are the mounting surfaces, 7 is the bulge, 8 is the vertical wall, 9 is the bent edge, and 10 is the The front wall edge, 11 is a flat plate floor surface, and 12 is a left and right connecting plate.

Claims (1)

[Scope of utility model registration request] The rear parts of the left and right side frames 3 and 4 of the body frame 2 are attached to the transmission case box frame 1 provided at the rear of the body. Mounting surfaces 5 and 6 extending substantially horizontally in the left and right direction are provided on the mounting surfaces 5 and 6.
A vertical wall body 8 having a bulge 7 facing the rear in the center is mounted on top of 6, and bent edges 9 and 9, which are wider than the left and right side frames 3 and 4 and have both ends bent downward, and the bulge. A left and right connecting plate 12 having a substantially flat floor surface 11 consisting of front wall edges 10 and 10 formed by bending the left and right front edges of the remaining left and right front edges upward after removing the corresponding portions of section 7 is attached to the rear of the vertical wall body 8 via the overlapping portion. A device for reinforcing the fuselage frame of a moving vehicle.