JP2007166944A - Mobile agricultural machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile agricultural machine preferably keeping posture of an operator in lifting up the machine body and reducing fatigue and preventing happening of disadvantage such as impairing waist, etc., while the machine body is able to adjust its longitudinal balance. <P>SOLUTION: In a tiller 1, a balance weight 3 installed on the front part of the machine body has a through hole 3a passing front-back both sides to make the top edge 3b as a gripping part. The machine body is easily carried without a forcible posture by inserting fingers from the through hole 3a and gripping the top end part 3b with a stable posture in moving the machine body fallen in a ditch or taking out the machine body from a package while the machine body is preferably adjustable of the longitudinal balance. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a mobile farm machine such as a tiller, and more particularly to a mobile farm machine that adjusts the balance between the front and rear of the machine body using a balance weight.

  In general, in a mobile farm machine such as a tiller, a heavy-duty engine is mounted on the front side of the machine, mainly for balancing the front and back of the machine, because a farm machine is installed at the rear of the machine and various farming operations are performed. I have to. However, if you want to balance the front and rear of the fuselage only with the engine weight, it is necessary to make the engine protrude forward considerably. In that case, in order to hinder the longitudinal length of the fuselage, install a balance weight just before the engine Therefore, the front-rear balance and the like of the machine body are adjusted (see Patent Documents 1 and 2).

Japanese Utility Model Publication No. 04-15588 JP-A-2005-199950

  However, in the mobile agricultural machines as described in Patent Documents 1 and 2, the balance weight is intended only for adjusting the balance between the front and rear of the machine body, and other functions are not expected.

  Therefore, when transporting the fuselage, the rear side of the aircraft can be lifted by gripping the handle for traveling operation extending backwards, etc., but the front side of the aircraft has no particular gripping part, and has an engine frame, etc. There is a possibility that the lifting posture becomes a middle waist and the operator cannot lift stably and the operator may hurt the waist or the like.

  Therefore, the present invention can adjust the front-rear balance of the aircraft, etc., and can improve the posture of the operator when lifting the aircraft, reduce fatigue, and prevent the occurrence of inconveniences that hurt the waist and the like. The purpose of the present invention is to provide a mobile agricultural machine that is configured to solve the above problems.

The present invention according to claim 1 (see, for example, FIGS. 1 to 5) is configured to transmit the rotation of the engine (13) mounted on the airframe (12) to a drive unit (eg, 10, 30), In the mobile agricultural machine (1) formed by attaching a balance weight (3) to the front of the machine body (12),
The balance weight (3) includes a through hole (3a) formed through the front and back so that the upper edge portion (3b) serves as a gripping portion.
It exists in the mobile agricultural machine (1) characterized by this.

According to a second aspect of the present invention (see, for example, FIGS. 1 to 5), the balance weight (3) is attached to the front of the airframe (12), and both lower ends (3c, 3c) are the airframe ( 12) protruding backward,
It exists in the mobile agricultural machine (1) of Claim 1.

According to a third aspect of the present invention (see, for example, FIGS. 1 to 5), the balance weight (3) is such that the upper edge (3b) is higher than the frame lower surface (13a) of the engine (13). It is attached to the front of the aircraft so that
It exists in the mobile agricultural machine (1) of Claim 1 or 2.

The present invention according to claim 4 (see, for example, FIG. 1 to FIG. 5) includes an oil filling port (4) of the engine (13) at the front of the body (12),
The balance weight (3) includes curved guide grooves (3i, 3j) on the left and right sides of the rear surface facing the rear of the airframe (12) when mounted on the front of the airframe, and both guide grooves. One of (3i, 3j) is opposed to the oil inlet (4);
It exists in the mobile agricultural machine (1) in any one of Claims 1 thru | or 3.

  Note that the reference numerals in the parentheses are for comparison with the drawings, but this is for convenience to facilitate understanding of the invention and has no influence on the description of the claims. It is not a thing.

  According to the first aspect of the present invention, since the balance weight is provided with a through hole formed so as to penetrate the front and back so that the upper edge portion becomes the grip portion, the front-rear balance and the like of the aircraft can be adjusted well. However, when moving the machine in a groove or taking it out of the packaging, put your finger through the balance weight through hole and grip the upper edge (grip) in a stable manner. The aircraft can be easily transported with no posture.

  According to the second aspect of the present invention, since the lower ends of the balance weight protrude rearward of the balance weight when mounted on the front of the fuselage, it is easy to hook the rope on the fuselage, and the work at the time of carrying the fuselage is more It becomes simple.

  According to the third aspect of the present invention, the balance weight is attached to the front of the fuselage so that the upper edge of the balance weight is higher than the lower surface of the frame of the engine. Work during transportation can be performed in a more comfortable posture.

  According to the fourth aspect of the present invention, since one of the balance groove guide grooves is opposed to the oil supply port, the presence of the guide groove in the vicinity of the oil supply port causes the oil to be supplied to the oil supply port. Lubricating work can be performed without any problems. Further, since the guide groove also functions as a rope positioning when pulling the rope inserted into the through hole in the forward direction of the machine body, it is possible to more efficiently proceed with the work such as the transportation of the machine body.

  Hereinafter, embodiments according to the present invention will be described with reference to the drawings. 1 is a side view of a field cultivator to which the mobile agricultural machine according to the present invention can be applied, FIG. 2 is a perspective view of the field cultivator as viewed obliquely from the rear, and FIG. 3 is a front view of the field cultivator.

  As shown in FIGS. 1 to 3, a cultivator (movable agricultural machine) 1 includes a traveling unit (driving unit) 10 and a cultivating unit (driving unit) 30 that are integrally formed. In the traveling unit 10, an engine 13 and a transmission transmission unit (not shown) are disposed on a body 12 supported by a pair of traveling wheels 11 on the left and right, and a fuel tank 14 is supported on the engine 13. Further, a shift lever 17 for shifting the shift transmission unit and a handle 18 for operating the traveling direction of the fuselage 12 are arranged at the rear of the fuselage 12.

  The cultivating unit 30 includes a cultivating shaft 31 that is rotatably supported by the machine body 12, a cultivating claw 32 that is fixed to the cultivating shaft 31 and cultivates a farm field, and a cultivating cover 33 that covers the top of the cultivating claw 32. The tillage claw 32 is rotationally driven by the output of the engine 13 that is transmitted through the speed change transmission unit.

  The fuselage 12 includes a tank cover 20 that covers the fuel tank 14 so that an upper portion including the fuel filler port is partially exposed, a guide groove 21 that guides the operation path of the shift lever 17, and a muffler that performs decompression and silencing of the exhaust of the engine 13. A shift guide panel 23 having an exhaust slit 22 formed on the side (not shown) and a muffler cover 25 covering the muffler are disposed.

  The rear end portion 20a of the tank cover 20 and the front end portion 23a of the transmission guide panel 23 facing each other are formed so as to be substantially continuous with each other when viewed from above and behind the airframe 12. Further, the lower end portion 20b of the side surface of the tank cover 20 and the upper surface 25a of the muffler cover 25 facing each other are formed so as to be along each other in a side view, and the side end portion 23b of the transmission guide panel 23 facing each other. And the rear end portion 25b of the muffler cover 25 are also formed along each other.

  As shown in FIG. 1, a weight mounting portion 2 is provided at the front portion of the airframe 12 in the traveling portion 10. As shown in FIG. 3, a balance weight 3 is fixed to the weight mounting portion 2 with bolts 4.

  Next, the structure of the balance weight 3 will be described in detail with reference to FIGS. 4A and 4B are diagrams showing the balance weight 3, wherein FIG. 4A is a plan view showing the balance weight 3 viewed from above, and FIG. 4B is a front view showing the balance weight 3 viewed from the front of the fuselage. It is. FIG. 5 is a view showing the balance weight 3, (a) is a rear view showing the balance weight 3 as seen from the rear of the machine body, and (b) is a side view showing the balance weight 3 as seen from the side. FIG.

  As shown in FIGS. 3 and 4 (b), the balance weight 3 has a substantially rectangular shape as a whole in a fixed state to the weight mounting portion 2 at the front of the machine body, and has an upper edge portion 3b at the center portion. Has a through hole 3a formed so as to penetrate the front and back so as to be long in the left-right direction in the figure so as to be a gripping portion. The balance weight 3 has a lower edge portion 3n opposed to the upper edge portion 3b with the through hole 3a interposed therebetween, and the lower edge portion 3n has three female screws formed at the front end portion of the weight mounting portion 2. Holes 3d, 3e, and 3f for inserting bolts 4 to be screwed into holes (not shown) are formed. Concave portions 3g and 3h are formed in portions corresponding to the holes 3d and 3f, respectively. Such a balance weight 3 is attached to the weight attachment portion 2 such that the upper edge portion 3b is positioned higher than the frame lower surface 13a (see FIG. 1) of the engine 13.

  Further, the balance weight 3 is formed so that the lower ends 3c and 3c protrude in a square shape toward the rear of the machine body 12 in the mounted state in the weight mounting portion 2 shown in FIG. 3 (FIG. 4A). (See also FIGS. 5 (a) and 5 (b)). A concave portion 3k is formed in the rear surface of the balance weight 3 so as to face the front end portion of the weight mounting portion 2 so as to recede from the lower ends 3c, 3c and to be easily positioned with respect to the front end portion of the weight mounting portion 2. .

  Further, the balance weight 3 has guide grooves 3i and 3j formed in curved surfaces inclined from the front of the body toward the rear of the body at positions corresponding to both ends of the through hole 3a in the upper edge portion 3b. That is, the balance weight 3 is provided with the guide grooves 3i and 3j on the left and right sides of the back surface facing the rear of the machine body 12 in the mounted state on the weight mounting part 2 at the front of the machine body. As shown in FIG. 1, an oil inlet 4 is provided at the lower part of the engine 13 at the front of the machine body 12, and one of the guide grooves 3 i and 3 j can be easily inserted into the oil inlet 4. Opposite the oil inlet 4. Projections 3m and 3m projecting rearward of the machine body are formed on the outer side of the guide grooves 3i and 3j on the upper edge 3b.

  At the time of work using the field cultivator 1 having the above-described configuration, the operator starts the engine 13, grasps the handle 18, operates the speed change lever 17, and drives the traveling wheel 11 while rotating the cultivating claw 32. The cultivator 1 that travels at a low speed is walked while being held at the rear. The tiller 1 is well adjusted in the front-rear balance and the like of the machine body 12 by the balance weight 3 attached to the front part of the machine body 12 not only during such traveling but also when stopped.

  In the field cultivator 1, the balance weight 3 attached to the weight attachment part 2 in the front part of the machine body 12 has the through holes 3a penetrating the front and back so that the upper edge part 3b is a gripping part. For example, when the machine body 12 is moved when it fits into a groove or the like, or when the machine body 12 is taken out of the package, the finger is inserted through the through hole 3a and the upper edge 3b. Can be gripped in a stable manner and the body 12 can be easily transported in a comfortable posture.

  Further, in the cultivator 1, the lower ends 3 c and 3 c of the balance weight 3 protrude rearward of the balance weight 3 when attached to the weight attachment portion 2 at the front of the fuselage. Therefore, the work at the time of transporting the aircraft becomes easier. Further, since the upper edge portion 3b of the balance weight 3 is mounted on the weight mounting portion 2 at the front of the machine body so that the upper edge portion 3b is higher than the frame lower surface 13a of the engine 13, the upper edge portion 3b of the balance weight 3 is The work at the time of gripping and transporting the machine body 12 can be performed in a more comfortable posture.

  Since the guide groove 3i of the balance weight 3 faces the oil supply port 4, the oil supply operation to the oil supply port 4 is performed by the presence of the guide groove 3i even though the balance weight 3 is in the vicinity of the oil supply port 4. It is done without hindrance. In addition, the guide grooves 3i and 3j also serve as a rope positioning when pulling a rope (not shown) inserted into the through hole 3a in the forward direction of the airframe 12, so that the work such as the transportation of the airframe can be carried out more efficiently. It is done.

It is a side view of the field cultivator which can apply the mobile agricultural machine concerning the present invention. It is the perspective view which looked at the cultivator from diagonally backward. It is a front view of a cultivator. It is a figure which shows a balance weight, (a) is a top view which shows the state which looked at the balance weight from upper direction, (b) is a front view which shows the state which looked at the balance weight from the body front. It is a figure which shows a balance weight, (a) is a rear view which shows the state which looked at the balance weight from the body back, (b) is a side view which shows the state which looked at the balance weight from the side.

Explanation of symbols

1 Mobile agricultural machine (cultivator)
DESCRIPTION OF SYMBOLS 3 Balance weight 3a Through-hole 3b Upper edge part 3c, 3c Lower both ends 3i, 3j Curved surface-shaped guide groove 4 Oil inlet 10,30 Drive part (traveling part, tillage part)
12 Airframe 13 Engine 13a Frame lower surface

Claims (4)

In the mobile agricultural machine configured to transmit the rotation of the engine mounted on the machine body to the drive unit, and mounted with a balance weight on the front part of the machine body,
The balance weight includes a through hole formed so as to penetrate the front and back so that the upper edge portion becomes a gripping portion.
A mobile agricultural machine characterized by that. The balance weight has a lower end projecting rearward of the airframe in a state of being attached to the front of the airframe.
The mobile agricultural machine according to claim 1. The balance weight is attached to the front of the fuselage so that the upper edge is positioned higher than the frame lower surface of the engine.
The mobile agricultural machine according to claim 1 or 2. The engine front is provided with an oil filler port of the engine,
The balance weight is provided with curved guide grooves on the left and right sides of the rear surface facing the rear of the airframe when mounted on the front of the airframe, and one of the two guide grooves faces the oil filling port. ,
The mobile agricultural machine according to any one of claims 1 to 3.

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