JPS646003Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a hitch device in a management machine such as a Taylor, and more particularly to the structure of a mounting plate for attaching a hitch to a mission case.

Generally, in a control machine, it is desirable that the transmission case be configured as narrow as possible in relation to the remaining plowing width in the left and right rotor loci. Therefore, the width of the mounting plate is considerably narrower than the hitch. As a result, an extremely large load acts on the welded portion between the mounting plate and the hitch in response to the lateral load applied to the hitch, but conventionally this was reinforced by welding a reinforcing plate as a separate member. Furthermore, in the conventional hitch device, it is necessary to weld a mounting plate for attaching the fender to the hitch mounting plate, leading to an increase in the number of parts and assembly man-hours, leading to an increase in costs.

Therefore, the object of this invention is to provide a hitch device for a tiller which eliminates the above-mentioned drawbacks by forming an attachment plate by bending a single steel plate, said attachment plate consisting of a bottom portion, left and right side portions rising from both ends of the bottom portion, and flange portions extending outward at the upper ends of each of the left and right side portions, and by attaching fenders to the upper surfaces of the flanges.

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the control machine has a transmission case 1, and an engine frame 2 is fixed to the front of the case 1 with bolts 3, and wheels, a rotor 4, etc. are mounted below the engine frame 2. An axle 5 to which an axle 5 can be mounted is rotatably supported, and a hitch device 6 according to the present invention is fixed behind it by bolts 3.

As shown in FIGS. 2 and 3, the hitch device 6 consists of a hitch 7 and a mounting plate 9, and the hitch 7 has a hole 7a for mounting a working machine. In addition, the mounting plate 9 is formed by bending a single steel plate, and the bottom part 9
a, left and right side portions 9b, 9b rising from both ends of the bottom portion 9a, and collar portions 9c, 9c extending outward at the upper ends of the left and right side portions, respectively. The rear end surface of the mounting plate 9 is welded to the hitch 7 so as to be integrated with the hitch 7, and the mounting plate 9 is fixed to the mission case 1 via the bolt 3 through a hole 10 formed in the front end portion thereof. Furthermore, the left and right brim portions 9
Nuts 11, 11 are welded to the lower surfaces of the flanges 9c, 9c, respectively, and left and right fenders 12, 12 are welded to the upper surfaces of the flanges 9c, 9c, respectively.
It is attached by screwing it onto the nut 11. Note that the left and right fenders 12, 12 each cover the upper part of the wheel 4, etc., and abut each other at their inner ends to form a recess 1 formed by the mounting plate 9.
It covers the upper part of 3. Further, in FIG. 1, reference numeral 15 indicates a bolt for attaching the front part of the fender 12 to the engine frame 2.

In the above embodiment, the left and right fenders 12 are formed separately in order to improve the material yield, but it goes without saying that the left and right fenders 12 may be formed integrally.

As explained above, according to the present invention, since the mounting plate 9 is formed by bending a single steel plate, the number of parts and assembly man-hours are small, and the mounting plate can be manufactured at an extremely low cost. 9 consists of a bottom portion 9a, left and right side portions 9b, 9b, and left and right flanges 9c, 9c extending outward, so the flanges 9c serve as reinforcement for the hitch 7 in the left-right direction, resulting in a sturdy structure. The fender 12 can be easily and securely attached to the flange 9c, and the fender 1
2 covers the upper part of the recess 13 formed by the mounting plate 9, so that mud and the like can be prevented from accumulating in the recess 13.

[Brief explanation of the drawing]

FIG. 1 is a side view showing a portion of a management machine to which the present invention is applied, FIG. 2 is a rear view of the hitch device, and FIG. 3 is a side view thereof. 1...Mission case, 6...Hitsuchi device,
7...Hitsuchi, 9...Mounting plate, 9a...Bottom, 9
b...side part, 9c...flange part, 12...fender, 13...recessed part.

Claims (1)

[Scope of utility model registration request] In a management machine in which a mounting plate with a hitch welded to the transmission case is fixed, the mounting plate is formed by bending a single steel plate, and the bottom part and the left and right sides rising from both ends of the bottom part. The management machine is comprised of a flange extending outward at the upper ends of the left and right sides, and a fender is attached to the upper surface of the flange so as to cover the upper part of the recess formed by the mounting plate. Hituchi device.