JPH026730Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a structure for preventing a reel mower device for mowing grass on a golf course from skipping due to gaps or the like.

(b) Conventional technology Traditionally, reel mowers for approach mowers have been
As shown in the figure, the reel mower support part A protruding from the tip is pivotally supported on a longitudinal axis so as to be rotatable left and right, and the rotating shaft part B installed horizontally at the bottom thereof is rotatable in the longitudinal direction. It was pivotally supported and equipped with rolling and pitching functions, allowing it to follow the unevenness of the ground and maintain a constant cutting height.

(c) Problems that the invention aims to solve With a configuration equipped with rolling and pitching functions, the ability to follow the ground can be improved, but fairway etc. cannot be used for mowing at relatively high speeds. Gap G on the ground
As the front roller is light, the reel mower device jumps as shown in Figure 5, causing a skipping phenomenon, resulting in undulating cutting marks. Furthermore, although the skipping phenomenon could be eliminated to some extent by slowing down the work speed, there was a problem in that the reaping work took a long time.

(d) Means to solve the problem In order to solve these problems, this invention
It is constructed as follows.

In a reel mower device that is rotatable in the front-rear direction and the left-right direction, an arm 16 is provided protruding from a support pipe 12 on which a rotation shaft 11 in the front-rear direction is externally fitted, and an arm 16 is provided from a frame 10 fixed to the rotation shaft 11. 15 is provided in a protruding manner, and a regulating spring 17 is interposed between the arms 15 and 16 to regulate pitching.

(e) Embodiment of the invention The purpose of the invention is as described above, and the structure of the invention will be explained based on the structure of the embodiment shown in the attached drawings. Overall side view with the device installed. FIG. 2 is a side view of the reel mower device. FIG. 3 is a plan view of the frame portion of the reel mower device. FIG. 4 shows a second embodiment of the present invention.

In Figure 1, 1 is the front wheel that is the driving wheel, 2 is the rear wheel that is the steering wheel, 3 is the steering wheel, 4 is the seat, and 5 is the steering wheel.
is the bonnet that houses the engine. The reel mower device has front mowers 6L, 6M, and 6R suspended from the front end of a lift device that protrudes toward the front of the aircraft.
Side mowers 7L and 7R are suspended from the tip of a lift arm 8 that projects laterally between the front wheel 1 and the rear wheel 2, and a total of five reel mowers are provided.

As shown in FIGS. 2 and 3, the configuration of the reel mower device is such that a mounting frame 20 is fixedly installed on the lower surface of the rear end of the frame 10 on both the left and right sides.
A pivot body 22 is provided to pivotally support the rear roller 21, an adjustment screw 23 is provided upright on the pivot body 22, and a bed knife attachment body 24 is screwed onto the pivot body 22. A chain case 26 is fixedly attached to the bed knife mounting body 24 via a side plate, and a reel blade 27 is pivotally supported at the lower part of the chain case 26. The reel blade 27 is driven by a hydraulic motor provided on the upper part of the chain case 26, and the reel blade 27 is brought into contact with the bed knife 25 installed horizontally at the lower end of the bed knife mounting body 24, and the lawn is cut by the rotation of the reel blade 27. It is.

A roller mounting body 29 is fixed to the front lower part of the frame 10, and a front roller 30 is pivotally supported by the roller mounting body 29. Further, a rotating shaft 11 is installed horizontally in the pipe section at the front end of the frame 10 to connect the left and right frames 10, and a support pipe 12 is rotatably fitted around the center of the rotating shaft 11 to enable pitting. A support frame 13 is erected at the center of the support pipe 12, and the support frame 13
A pivot pipe 14 is fixedly installed at the upper end, and is fitted into a lift device of a tractor to enable rolling.

As shown in the moving diagram as the first embodiment of the present invention,
Arms 15L, 15R, 16L, 16 are mounted on the pipe section at the front end of the frame 10 and on both sides of the support pipe 12.
R is provided protrudingly, and the arms 15L, 15R, 16
Regulation springs 17L and 17R at the tips of L and 16R
The arms 15L and 15R are provided with locking holes 15a at several places, so that the spring pressure can be adjusted so that the locking position can be changed depending on conditions such as topography, weight, work speed, etc. There is.

To explain the structure shown in FIG. 4 as a second embodiment of the present invention, arms 15 and 16 are provided protruding from the pipe portion of the frame 10 and the support pipe 12, respectively, as in the case of the first embodiment. A regulating spring 17, which is a torsion coil spring, is wound around the pipe portion of the arm 15,
It is fixed at 16.

(f) Function of the invention The present invention is such that when working with such a configuration, if there is a gap G on the ground surface, the reel mower device will bounce when it gets over the gap G. Regulation springs 17L and 17R interposed between the support pipe and the frame
When the reel mower device is lowered by the frame 10, it does not jump up again due to the biasing force in the C direction, and in the second embodiment, the rotation in the C direction and the D direction is biased by the regulating spring 17, so that the reel mower device supported by the frame 10 It does not jump up, but simply returns to its flat position and carries out its normal reaping.
Therefore, the skipping phenomenon is eliminated and the finished product will not be wavy.

(g) Effects of the invention Due to the above-mentioned structure and operation, the present invention has the following effects.

In other words, the pitching of the reel mower device is regulated by the regulating spring interposed between the frame and the support pipe, so even when working on an uneven ground surface, the reel mower device can follow the ground surface without reducing the cutting speed. As a result, it became possible to reap uniformly, eliminating the occurrence of the skip phenomenon.

[Brief explanation of drawings]

Figure 1 is an overall side view of a tractor with five reel mowers attached. FIG. 2 is a side view of the reel mower device. FIG. 3 is a plan view of the frame portion of the reel mower device. FIG. 4 is a perspective view of a second embodiment of the present invention. FIG. 5 is a side view showing a conventional cutting state. 10...Frame, 11...Rotation axis, 12...
Support pipe, 15, 16... Arm, 17... Regulation spring.

Claims (1)

[Scope of utility model registration request] In a reel mower device that is rotatable in the front-rear direction and the left-right direction, an arm 16 is provided protruding from a support pipe 12 on which a rotation shaft 11 in the front-rear direction is externally fitted, and an arm 16 is provided from a frame 10 fixed to the rotation shaft 11. A reel mower device characterized in that a regulating spring 17 is interposed between the arms 15 and 16 to regulate pitching.