JP4909423B2 - Walking type management machine - Google Patents

Description

The present invention relates to a walking management machine including a traveling machine body in which a steering handle is extended rearward and equipped with a tilling rotor .

  As a walking-type management machine, the engine is directly connected to the upper part of the transmission case with the rotating shaft horizontally supported at the lower part, and the steering handle is extended backward from the transmission case to constitute a traveling machine body. One having a rear hitch for mounting an instrument at the rear is known (see, for example, Patent Document 1).

  In order to form a kite using the walking type management machine with the above configuration, a tilling rotor is attached to the rotating shaft at the bottom of the transmission case, and a resistance rod is attached to the rear hitch. Plowing is carried out while advancing at a desired speed by advancing by the rotation of the plowing rotor while plowing with a rotary-driven plowing rotor and adjusting the forward resistance by a resistance rod that has entered the field behind the machine body. . After that, attach the wheel to the rotating shaft instead of the tilling rotor, and attach the cultivator instead of the resistance rod to the rear hitch, and press the soil cultivated earlier with the wheel while moving forward at low speed with the wheel. The cocoon is formed.

JP 2003-52202 A

  In the walking type management machine configured as described above, the tilling work and the dredging work are separately performed, and the work is troublesome. Also, when switching from the tilling work to the dredging work, the rotation rotor and the wheels on the rotary shaft are switched. It was necessary to replace the resistance bar and the earthenware container to the rear hitch, and it took time to switch.

  The present invention has been made paying attention to such points, and it is an object of the present invention to make it possible to efficiently perform the hook forming work using the walking type management machine without requiring the trouble of replacing the equipment. Yes.

The first invention is a walk-behind tiller provided with a vehicle body in which plowing rotor is equipped with the steering wheel is extending rearward facing,
A soil ware equipped with a molded plate made of a rubber plate is provided in a state where the upper end is supported on the traveling machine body side and hangs down at the rear position of the tilling rotor,
The earth cultivator is maintained in the molding operation posture as it becomes a molding operation posture that swings backward by a reaction force that presses the side surface of the ridger with the side supported by the traveling machine body as a swing fulcrum. As shown in the above, the body up-and-down bar that contacts and supports from the rear side of the cultivator to the central part in the cultivator lateral width direction of the cultivator,
A tongue piece that protrudes from the lower end side of the earthenware and is bent backward by a reaction force that presses the bottom surface of the ridge is provided .

According to the above configuration, the tiller is made to act on the tilling trace while plowing with the tilling rotor, and the straw is formed, so that the dredging operation can be performed even with the body vertical bar mounted. In this case, the pressure reaction force against the soil acts as a load on the soil cultivator, and the cultivator lower part tries to move backward, but the cultivator is received by the vertical bar of the aircraft , The action posture of the earthenware is kept constant.

Therefore, according to the present invention, troublesome without as performed separately plowing work and ridges forming work replace the soil unit, it is possible to perform good efficiency molding ridges, the action position of the soil unit stable It is possible to exert a good mold forming function.

The second invention is characterized in that the rod in a state in which the ridging apparatus is in said molding working posture is characterized that you have to project downwardly relative to the lower end of the soil unit.

It is a side view of the walk type management machine of [the 1st example]. It is a top view of the walk type management machine of [the 1st example]. It is a side view of the state which stored the steering handle of [the 1st example]. It is a rear view of the earthenware container of [the 1st example]. It is a vertical side view of the earthenware machine of [the 1st example]. It is a rear view which shows the earthenware machine in the operation state of [the 1st example]. It is a top view which shows the earthenware machine in the operation state of [1st example]. It is a vertical side view which shows the earthenware machine of [2nd example]. It is a rear view which shows the earthenware machine of [2nd example].

Several embodiments of the present invention will be described with reference to the drawings.
[First example]
FIG. 1 shows an overall side view of the walking type management machine according to the first example of the present invention, and FIG. A traveling machine body 1 of this walking type management machine extends a steering handle 4 rearward from a transmission case 3 directly connected to an upper end of an engine 2, and supports a rotating shaft 5 on the lower left and right of the transmission case 3. Fenders 6 are extended and arranged on the upper left and right of 3.

  The engine 2 uses a vertical-axis air-cooled gasoline engine, and is configured to manually start the engine using a recoil starter 7 provided in the upper part of the engine 2. A recoil rope 8 is led out from the recoil starter 7, and a pull handle 8 a provided at the rear end of the recoil rope 8 is inserted and supported by a rope hook 9 provided in the steering handle 4.

  The steering handle 4 is composed of a handle base portion 4a made of a round pipe material, and a left and right bifurcated operation handle portion 4b pivotally connected to a rear end of the handle base portion 4a around a lateral fulcrum p. The knob 10 with the knob 10 is loosened, the operation handle 4b is rotated up and down, and the bolt 10 with the knob is tightened at an arbitrary rotation position, whereby the height of the operation handle 4b can be adjusted. At the same time, as shown in FIG. 3, the operation handle portion 4 b can be folded and stored so as to straddle the engine 2 by largely rotating forward.

  A rear hitch 12 of a sheet metal structure is provided at the rear part of the transmission case 3, and the handle base is connected to the lower rear portion of the transmission case 3 by connecting the front end of the handle base 4 a inserted through the rear hitch 12. 4a is firmly fixed and supported in a predetermined rearward rising posture.

  A rearward end of the rear hitch 12 is provided with a vertical boss portion 12a. A resistance rod 13 obtained by bending a round bar into a U-shape is inserted into the boss portion 12a and is fixed by a through pin 14. ing. A plurality of upper and lower pin insertion holes 15 are formed in the resistance rod 13, and by selecting the pin insertion hole 15 and inserting the through pin 14, the height of the resistance rod 13 can be adjusted in a plurality of stages. It is possible.

  FIG. 1 shows a walking type management machine designed to form an externally-filled kite that forms a kite on the left and right sides of the passing track of the traveling machine body 1 by forward traveling. A tilling rotor 16 is mounted on each of the left and right rotating shafts 5, and the tilling rotor 16 is rotated while being driven at a high speed in the down cut direction (see the arrow in FIG. 1). Thus, plowing is performed while moving forward at a desired speed by adjusting the forward resistance due to the resistance rod 13 entering the field at the rear of the machine body.

  The tilling rotor 16 is configured by planting tilling claws 18 on a pawl shaft 17 connected to the rotary shaft 5. In this example, plural kinds of tilling claws 18 are arranged in a predetermined arrangement. Thus, the one that is configured to have an outside pitching specification in which the soil cultivated over a predetermined lateral width is flipped up and down is used.

  On the rear hitch 12, a cultivator 20 is connected and supported so as to freely rotate around a lateral fulcrum q so as to intersect the resistance bar 13 in a side view. As shown in FIG. 4, this earthenware container 20 is formed by bolting and connecting the upper support frame 22 and the lower support frame 23 along the upper side and the lower side of a molded plate 21 made of rubber plate formed in an inverted trapezoidal shape. The details are as follows.

  The molded plate 21 is obtained by cutting a rubber plate having a thickness of several millimeters having appropriate hardness and elasticity into an inverted trapezoidal shape with a narrowed bottom, from the lateral outer ends of the upper support frame 22 and the lower support frame 23. It has a width that protrudes. A vertically long rectangular through-hole 24 is formed at an upper and lower middle portion of the left and right center portion of the molding plate 21, and the resistance rod 13 is passed through the through-hole 24 from the front to the rear. A tongue piece 25 projecting downward from 23 is integrally formed.

  The upper support frame 22 and the lower support plate 23 are made of a flat steel material, and are arranged along the back surfaces of the upper side and the lower side of the molded plate 21 and are connected by bolting. A vertical frame 26 made of a flat steel material is welded and fixed to the left and right central portions of the upper support frame 22, and the lower end edge of the vertical frame 26 is aligned with the upper end edge of the through hole 24 and the upper end edge of the lower support frame 23. Is aligned with the lower edge of the through hole 24.

  A connecting frame portion 26a that is bent and extended in a bifurcated shape from the upper part of the vertical frame 26 toward the upper front is extended, and the connecting frame portion 26a is connected to the front portion of the boss portion of the rear hitch 12 via the pin 27. It is pivotally connected around a fulcrum q so as to be rotatable. A bent portion 26b connected to the upper end of the vertical frame 26 is inserted and welded between the left and right connecting frame portions 26a, and the bent portion 26b is connected to the boss portion 12a of the rear hitch 12, as shown in FIG. By contacting the rear surface of the cultivator 20, the forward swing limit of the cultivator 20 is restricted, and the cultivator 20 is prevented from coming into contact with the tilling rotor 16.

  According to the above configuration, the tilling rotor 16 is driven to rotate at a high speed in the down cut direction and is advanced by rotation of the tilling rotor 16 while plowing, and the forward resistance due to the resistance rod 13 entering the field is adjusted. By plowing and raising the soil left and right while moving forward at a desired speed, the soil that has been cultivated and softened is pushed and moved by the inverted trapezoidal shaper 20, as shown in FIGS. 6 and 7. The bottom surface B of the ridge is press-formed at the lower end side of the forming plate 21, and the side surfaces S of the left and right ridges are press-formed at the inclined side end sides of the forming plate 21.

  In this case, as shown by the phantom line in FIG. 5, the cultivator 20 is swung back around the fulcrum q by a load acting backward, and functions as a contact portion where the lower support frame 23 is received by the resistance bar 13. The cultivator 20 is maintained in a predetermined molding work posture that is tilted slightly forward and inclined.

  As shown in FIGS. 6 and 7, the tongue piece 25 protruding from the lower end side of the molding plate 21 is bent backward by a reaction force that presses the bottom surface B of the heel, and the elastic restoring force causes the left and right sides of the bottom surface B of the heel to be left and right. While the edges are squeezed, even if the height of the bottom surface B of the kite changes slightly due to changes in tilling and front / rear posture, the bending of the tongue piece 25 changes according to the change, and it is pushed moderately. The bottom surface B of the hardened ridge is formed.

  The side edge of the molding plate 21 is also bent backward by a reaction force that presses the side surface S of the reed, and the side surface S of the reed is pressed and hardened by its elastic restoring force, and the lateral width between the reeds slightly varies depending on the state of tillage. However, according to the change, the bending state of the side edge of the molding plate 21 changes, and the side surface S of the heel that is appropriately pressed is molded.

[Second example]
8 and 9 show a cultivator 20 different from the [first example]. The earthenware container 20 of this example is also configured by bolting and connecting the upper support frame 22 and the lower support frame 23 along the upper side and the lower side of the rubber plate-shaped molding plate 21 formed in an inverted trapezoidal shape.

  The molded plate 21 is obtained by cutting a rubber plate having a thickness of several millimeters having appropriate hardness and elasticity into an inverted trapezoidal shape with a narrowed bottom, from the lateral outer ends of the upper support frame 22 and the lower support frame 23. It has a width that protrudes. A vertically long rectangular through hole 24 is formed at an upper and lower middle portion of the left and right center portion of the molding plate 21, and the resistance rod 13 is penetrated from the back surface side to the front surface side.

  The upper support frame 22 and the lower support plate 23 are made of a flat steel material, and are arranged along the back surfaces of the upper side and the lower side of the molded plate 21 and are connected by bolting. A vertical frame 26 made of a flat steel material is welded and fixed to the left and right central portions of the upper support frame 22, and the lower end edge of the vertical frame 26 is aligned with the upper end edge of the through hole 24 and the upper end edge of the lower support frame 23. Is aligned with the lower edge of the through hole 24.

  A connecting frame portion 26a that is bent and extended from the upper part of the vertical frame 26 upward is extended, and the connecting frame portion 26a is connected to the boss portion front portion of the rear hitch 12 via the pin 27 and the fulcrum. It is pivotally connected around q.

  According to the above configuration, the tilling rotor 16 is driven to rotate at a high speed in the down cut direction and is advanced by rotation of the tilling rotor 16 while plowing, and the forward resistance due to the resistance rod 13 entering the field is adjusted. By plowing and raising the soil to the left and right while moving forward at a desired speed, the soil that has been plowed and softened is pushed and moved by the inverted trapezoidal shaper 20, and the bottom of the molding plate 21 While the bottom surface B is press-molded, the side surfaces S of the left and right ridges are press-molded at the inclined side edges of the molding plate 21.

  In this case, as shown by the phantom line in FIG. 8, the cultivator 20 is swung rearward around the fulcrum q by a load acting backward, and the lower part of the vertical frame 26 is received by the resistance bar 13. The cultivator 20 is maintained in a predetermined molding work posture that is slightly tilted forward and inclined. The lower half of the cultivator 20 presses the bottom surface B of the ridge while being bent and deformed slightly rearward by the pressing reaction force of the soil, and presses and fills the groove formed on the bottom surface B of the ridge with the resistance rod 13. Become.

  Even if the cultivator 20 moves forward by its own weight or external force, for example, the traveling handle 1 is tilted forward by lifting the steering handle 4 or the traveling tractor 1 is moved backward while the cultivator 20 is grounded. The lower support plate 23 provided at the lower part of the vessel 20 functions as a contact portion and is received by the resistance bar 13, so that the cultivator 20 is prevented from moving forward from the set position, and the cultivator 20 is cultivated. Contact with the starting rotor 16 is avoided.

[Other Examples]
(1) Although not shown, the molding plate 21 of the earthenware device 20 is composed of left and right divided molding plates, and the upper support frame 22 and the lower support frame 23 provided on the left and right divided molding plates 21 are connected to each other as desired. It is also possible to configure the molded plate 21 having the outer shape. According to this, it becomes possible to replace the left and right divided molded plates separately.
(2) The molded plate 21 can also be constituted by a hard resin plate or a metal plate.
(3) In each of the above-described embodiments, a so-called axle working mode in which the tilling rotor 16 is mounted on the rotating shaft of the traveling machine body 1 is illustrated, but the tilling rotor 16 is disposed behind the propulsion wheel. The cultivator 20 and the resistance bar 13 can also be implemented in the form of being arranged in this order.

1 Traveling aircraft 4 Steering handle 13 Resistance rod (bars pointing up and down)
16 Tillage rotor 20 Soil ridger 21 Molded plate
25 tongue pieces

Claims (2)

A walking-type management machine having a traveling machine body with a steering handle extended backward and equipped with a tilling rotor,
A soil ware equipped with a molded plate made of a rubber plate is provided in a state where the upper end is supported on the traveling machine body side and hangs down at the rear position of the tilling rotor,
The earth cultivator is maintained in the molding operation posture as it becomes a molding operation posture that swings backward by a reaction force that presses the side surface of the ridger with the side supported by the traveling machine body as a swing fulcrum. As shown in the above, the body up-and-down bar that contacts and supports from the rear side of the cultivator to the central part in the cultivator lateral width direction of the cultivator,
A walking-type management machine provided with a tongue piece that protrudes from the lower end side of the earthenware and is bent backward by a reaction force that presses the bottom surface of the pot.   The walking type management machine according to claim 1, wherein the bar protrudes downward with respect to a lower end of the soil culturing device in a state where the soil culturing device is in the forming work posture.

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