JP2012085589A - Walking-type cultivator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a walking-type cultivator that easily performs the oil supply operation of fuel.SOLUTION: In the walking-type cultivator in which an engine 12 is placed on a transmission case 11, a fuel tank 13 is mounted on the engine 12 and which includes a handle 20 extended slantingly upward from the transmission case 11, the handle 20 is composed of a base part side handle 21 and an upper part side handle 22, a turning shaft 23 being in approximately the same position as that of the upper end of the fuel tank 13 and in a horizontal direction is installed between the base part side handle 21 and the upper part side handle 22, the upper part side handle 22 is rotated to the side of the fuel tank 13 with the turning shaft 23 as a fulcrum and foldably stored and a placing surface for placing a carrying can A is formed on the back of the upper part side handle 22.

Description

  The present invention relates to a walking management machine.

In a conventional walking type management machine, an engine is mounted on a mission case (airframe), and a fuel tank is provided on the engine. For example, as described in Patent Document 1.
A fuel filler opening is provided in the upper part of the fuel tank of the walking type management machine disclosed in Patent Document 1. By removing the cap of the fuel filler port, placing a carrying can filled with fuel above the fuel tank, and connecting the fuel filler port of the fuel tank and the fuel filler port of the carrying can with a siphon type pump or the like It is possible to refuel the fuel in the carrying can into the fuel tank.
However, since the fuel tank of the above-mentioned walking type management machine is small in size, it is very unstable when a carrying can is placed on the plane portion of the upper surface of the fuel tank during fuel supply work. Therefore, it is necessary for the operator to support heavy carrying cans by hand, and refueling work has been a heavy labor. Moreover, since it is difficult to support the carrying can stably, there is a risk of spilling fuel.

JP 2009-183236 A

  The present invention has been made in view of the above situation, and proposes a walking type management machine that can carry a fuel supply work easily by placing a carrying can for fuel supply on a handle.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

The walking management machine according to claim 1 is:
In the walking type management machine provided with an engine mounted on the mission case, provided with a fuel tank on the engine, and provided with a handle extending obliquely upward from the mission case,
The handle is composed of a base side handle and an upper side handle,
Between the base side handle and the upper side handle, a horizontal rotation shaft is provided at a height position substantially the same as the upper end of the fuel tank,
The upper handle is configured to be foldable and retractable by rotating to the fuel tank side with the rotating shaft as a fulcrum, and a mounting surface on which a carrying can can be mounted on the back surface of the upper handle. It is characterized by being formed.

  The walking management machine according to claim 2, wherein the upper handle is configured in a loop shape, and the upper handle is at least a part of a fuel filler port provided at an upper portion of the fuel tank when folded. Is configured so as not to interfere.

  In the present invention, since the fuel can carry canister can be placed on the mounting surface formed on the back surface of the upper handle constituting the handle, it is not necessary for the operator to support the heavy carry can by hand. There is an effect that the refueling operation can be easily performed.

It is the left view which showed the structure of the walk type management machine which concerns on this invention, and has shown the state which set the upper side handle to the "working position." It is the top view which showed the structure of the walk type management machine which concerns on this invention, and has shown the state which set the upper side handle to the "working position." It is the left view which showed the structure of the walk type management machine which concerns on this invention, and has shown the state which set the upper side handle to the "storing position." In the drawing, the position of the upper handle at the “working position” is indicated by a one-dot chain line. It is the top view which showed the structure of the walk type management machine which concerns on this invention, and has shown the state which set the upper side handle to the "storing position." In the drawing, the position of the upper handle at the “working position” is indicated by a one-dot chain line. It is the left view which showed the state which mounted the carrying can on the upper side handle.

  An overall configuration of a walking management machine 1 according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. In the following description, the forward direction (cultivation device 40 side) of the walking management machine 1 is defined as “front”.

The walking type management machine 1 is a rotary work type walking type management machine, and is a working machine capable of performing management work such as tillage work and upright work. The walking-type management machine 1 includes a mission case 11, an engine 12, a fuel tank 13, traveling wheels 14 and 14, a tilling device 40, a handle 20, an operation unit 30, and the like.
In the present specification, the “airframe” (airframe 10) refers to a combination of the mission case 11, the engine 12, the fuel tank 13, the engine frame 16, and the like, that is, the main body of the walking type management machine 1.

  The transmission case 11 is a case having a “H” shape in a side view in which the transmission is installed, and is one of the main structures of the walking management machine 1. The engine 12 is placed and fixed on the upper part of the mission case 11 via an engine frame 16. A fuel tank 13 is provided on the engine 12. A fuel filler port 13 a is provided in the upper part of the fuel tank 13. By removing the cap of the fuel filler port 13a, fuel can be fed into the fuel tank 13 from the fuel filler port 13a.

  Left and right axles 17 and 17 are rotatably supported at the rear lower portion of the mission case 11. The left axle 17 is provided so as to protrude to the left side of the mission case 11, and the left traveling wheel 14 is fixed to the tip. The right axle 17 is provided so as to protrude to the right side of the mission case 11, and the right traveling wheel 14 is fixed to the tip portion. A differential device is provided between the left and right axles 17 and 17 in the transmission case 11 to differentiate the left and right axles 17 and 17. Further, in the mission case 11, a differential lock device for regulating the differential by the differential device is provided. The operation of the differential lock device is interlocked with the operation of the differential lock lever 31. That is, by operating the differential lock lever 31, the left and right traveling wheels 14, 14 can be locked to make the relative rotation impossible, or the lock can be released.

  A work shaft 41 is rotatably supported on the front lower portion of the mission case 11. The work shaft 41 is provided so as to protrude on both the left and right sides of the mission case 11, and a plurality of tilling claws 42, 42,. The upper half of the rotation trajectory of the tilling claws 42, 42... Is covered from above by a rotary cover 43 fixed to the mission case 11. The working shaft 41, the tilling claws 42, 42..., The rotary cover 43, and the like constitute a tilling device 40.

  Auxiliary wheels 50 and 50 are arranged in front of the tillage device 40. The auxiliary wheels 50 and 50 are supported by the engine frame 16 via the auxiliary wheel frame 51 so as to be rotatable in the vertical direction.

  A front end portion of the handle 20 is attached to the rear portion of the mission case 11. The handle 20 includes a base side handle 21 and an upper side handle 22.

  The base side handle 21 is a long rod-like member, and its front end (front lower end) is fixed to the rear part of the mission case 11. A rear end portion (rear upper end portion) of the base side handle 21 extends rearward and upward of the fuselage 10.

  The upper side handle 22 is a member formed in a loop shape, and forms a portion that is gripped by an operator. The front end of the upper handle 22 is connected to the rear end of the base handle 21. More specifically, the upper handle 22 is pivotally supported by the base handle 21 via a rotation shaft 23 whose axis is directed in the left-right direction (horizontal direction). The rotating shaft 23 is disposed at substantially the same height as the upper end of the fuel tank 13. With such a configuration, the upper handle 22 can be rotated with respect to the base handle 21 with the rotation shaft 23 as a fulcrum.

  A handle fixing lever 32 is provided on the right side of the rotating shaft 23. By turning and loosening the handle fixing lever 32, the upper handle 22 can be turned up and down to an arbitrary height, or can be turned forward. Then, the upper handle 22 can be fixed at a desired rotation position by rotating the handle fixing lever 32 in the tightening direction.

  When the walking-type management machine 1 is moved to another place or at the time of tillage work, the upper handle 22 is fixed at a position protruding rearward and upward. At this time, the position of the upper handle 22 is as shown in FIGS. The vertical height of the upper handle 22 can be arbitrarily changed according to the height of the operator.

  In addition, when the walking type management machine 1 is housed in a storage place or when fuel is refueled, the upper handle 22 can be fixed at a position folded forward (fuel tank 13 side). At this time, the position of the upper handle 22 is as shown in FIGS.

A stopper that restricts further rotation of the upper handle 22 when the upper handle 22 is rotated to the “storage position” may be disposed in the vicinity of the rotation shaft 23, or You may comprise so that the side handle 22 may contact | abut to the cover which covers the upper part of the fuel tank 13 or the body 10.
Alternatively, when the upper handle 22 is rotated to the “storage position”, the stop switch 33 (described later in detail) may be configured to come into contact with a cover that covers the upper portion of the machine body 10. In such a configuration, when the refueling operation is performed, the stop switch 33 is surely pushed, so that safety can be improved.

  Below, the attitude | position of the walking type management machine 1 at the time of the fuel supply operation | work is demonstrated with reference to FIGS.

In the present embodiment, by setting the position of the upper handle 22 to the “storage position”, the posture of the walking type management machine 1 can be set to a posture in which fuel is easily supplied.
That is, when the position of the upper handle 22 is set to the “storing position”, the loop-shaped portion of the upper handle 22 is arranged in one plane, and the upper handle 22 is a surface that is substantially horizontal with respect to the body 10. It is comprised so that. As shown in FIG. 4, when the position of the upper handle 22 is set to the “storage position” in plan view, a placement surface X on which the carrying can A can be placed is formed on the back surface of the upper handle 22. .

More specifically, the upper handle 22 is composed of an attachment portion 22a and a loop portion 22b. One end portion of the attachment portion 22 a is connected to the rear end portion (rear upper end portion) of the base side handle 21 via the rotation shaft 23. The loop portion 22b is formed by bending a long rod-like member into a loop shape, and is attached to the left and right side surfaces of the other end portion of the attachment portion 22a.
When the upper handle 22 is set to the “storing position”, the upper surface (back surface) of the mounting portion 22a is substantially horizontal as shown in FIG. Further, in this state, no operation tool such as an operation lever is disposed on the upper surface of the loop portion 22b, and protrudes from the front end portion of the attachment portion 22a (front portion at the “storage position”) to the left and right sides. The left and right side portions of the loop portion 22b are substantially the same height as the top surface of the mounting portion 22a.

  When the position of the upper handle 22 is set to the “storing position”, at least a part of the fuel filler port 13a of the fuel tank 13 is disposed in a portion surrounded by the upper handle 22 in plan view (see FIG. 4). In addition, it is disposed below the upper handle 22 (see FIG. 3). In such a configuration, the operator can visually recognize the fuel filler opening 13 a of the fuel tank 13 from above the upper handle 22 disposed at the “storage position”.

  In the state where the position of the upper handle 22 is set to the “storage position”, as shown in FIG. 5, the carrying can A loaded with fuel on the placement surface X formed on the back surface of the upper handle 22 is carried. The can A is supported at three points, that is, the attachment portion 22a portion of the upper handle 22 and the left and right portions of the loop portion 22b, and the carrying can A is placed in a stable state. In addition, the carrying can A is disposed above the fuel filler opening 13 a of the fuel tank 13. With the carrying can A placed on the upper handle 22, the siphon effect is utilized by connecting the oil filling port a of the carrying can A and the fuel filling port 13 a of the fuel tank 13 with a siphon type pump or the like. The fuel in the carrying can A can be easily supplied into the fuel tank 13.

In addition, in the attachment part 22a on the back surface of the upper handle 22, the mounting surface X may be formed so that the portion that supports the carrying can A is a flat surface and can be supported in a more stable state.
In addition, when the position of the upper handle 22 is set to the “storage position”, the other members constituting the walking type management machine 1 are arranged below the upper handle 22. In other words, no other member protrudes above the upper handle 22. Therefore, when the carrying can A is placed on the placement surface X on the back surface of the upper handle 22, other members do not get in the way.

  Further, by setting the position of the upper handle 22 to the “storage position”, as shown in FIGS. 3 and 4, the size of the walking management machine 1 in the front-rear direction can be made compact. The posture of 1 can be a posture that can be easily accommodated in the storage location.

As shown in FIG. 2, an operation box 25 is provided at the front portion of the upper handle 22, and a differential lock lever 31 and a stop switch 33 are disposed in the operation box 25.
An operation plate 24 is provided at the rear of the transmission case 11, and a lever guide for the speed change lever 34 and the tilling depth adjustment lever 35 is disposed on the operation plate 24. The rear end portions of the transmission lever 34 and the tilling depth adjustment lever 35 extend toward the rear upper side of the machine body 10.
The differential lock lever 31, the stop switch 33, the speed change lever 34, the tilling depth adjustment lever 35, and the like constitute an operation unit 30 for artificially operating the walking type management machine 1.

  The differential lock lever 31 is an operating tool for operating the differential lock device as described above. The base end portion of the differential lock lever 31 is pivotally supported by the upper handle 22 via a rotation shaft (not shown) whose axis is directed in the vertical direction. With such a configuration, the differential lock lever 31 can be rotated with respect to the upper handle 22 with the rotation shaft as a fulcrum. The differential lock lever 31 of the present embodiment is set so as to rotate in the horizontal direction within the region surrounded by the loop-shaped portion of the upper handle 22.

  The stop switch 33 is a push button type switch for stopping the engine 12. The stop switch 33 is provided on the upper handle 22 via the operation box 25 so as to be pushed.

  The transmission lever 34 is an operating tool for changing the transmission gear ratio of the transmission. A base end portion of the transmission lever 34 is connected to a gear or the like constituting the transmission in the transmission case 11. The tip of the speed change lever 34 extends to the front of the front end of the upper handle 22. The operator can tilt the shift lever 34 in the vertical direction along a guide groove 24 a that is a lever guide formed on the operation plate 24.

  The tilling depth adjusting lever 35 is for adjusting the vertical position (height) of the auxiliary wheels 50, 50 with respect to the tilling device 40. The tip portion of the tilling depth adjustment lever 35 extends toward the rear upper side of the body 10. The other end portion of the tilling depth adjusting lever 35 is connected to the auxiliary wheel frame 51 via a link mechanism. The link mechanism is pivotally supported by the body 10. The operator can tilt the tilling depth adjusting lever 35 in the vertical direction along the guide groove 24b which is a lever guide formed on the operation plate 24. By tilting the plowing depth adjusting lever 35, the auxiliary wheels 50 and 50 are rotated in the vertical direction, and the plowing depth can be adjusted.

As described above, the transmission lever 34 and the tilling depth adjustment lever 35 of this embodiment both extend toward the rear upper side of the machine body 10 and are arranged side by side. Therefore, the operator does not have to move left and right for operating these levers. That is, both the speed change lever 34 and the tilling depth adjustment lever 35 can be operated from a certain position behind the handle 20.
Further, since the guide groove 24a for the speed change lever 34 and the guide groove 24b for the tilling depth adjusting lever 35 are formed on one operation plate 24, it is easy to look over both indexes (operation positions) at the same time. It is excellent in operability. Further, as compared with the case where the guide groove 24a for the transmission lever 34 and the guide groove 24b for the tilling depth adjustment lever 35 are formed in separate members (operation plates), a process such as welding at the time of manufacturing is performed. Thus, the manufacturing cost can be reduced.

  As described above, the walking management machine 1 according to the present embodiment has the engine 12 mounted on the mission case 11, the fuel tank 13 is provided on the engine 12, and extends obliquely upward from the mission case 11. In the walking type management machine including the handle 20 to be taken out, the handle 20 is constituted by a base side handle 21 and an upper side handle 22, and the upper end of the fuel tank 13 is interposed between the base side handle 21 and the upper side handle 22. The upper side handle 22 is configured to be foldable and retractable by rotating to the fuel tank 13 side with the rotary shaft 23 as a fulcrum. A mounting surface X on which the carrying can A can be mounted is formed on the back surface of the side handle 22.

Therefore, when the upper handle 22 is folded to the “storage position”, the carrying can A can be placed on the mounting surface X on the back surface of the upper handle 22, and the fuel supply operation to the fuel tank 13 can be easily performed. It can be carried out.
Since the mounting surface X on which the carrying can A is placed is formed on the upper handle 22 and the function of placing the carrying can A is also used on a component of the existing handle, a member on which the carrying can A is placed separately. There is no need to increase the number of parts, such as providing a complicated structure, and the handle can be used effectively.
In addition, when the upper handle 22 is folded into the “storage position”, the upper end of the fuel tank 13 and the upper handle 22 can be brought close to each other, so that the walking type management machine 1 is placed in a compact posture and stored in a storage place. Can be accommodated.

  Further, in the walking type management machine 1 according to the present embodiment, the upper handle 22 is configured in a loop shape, and the upper handle 22 is provided at the top of the fuel tank 13 at the top of the fuel tank 13 when folded. The configuration is such that it does not interfere with at least a portion.

  Therefore, the upper handle 22 is not obstructed (not obstructed) when connecting the fuel filler port a of the carrying can A and the fuel filler port 13a of the fuel tank 13 during the fueling operation. Moreover, since the upper side handle | steering-wheel 22 is formed in the loop shape, the carrying can A can be mounted in the stable state on it.

DESCRIPTION OF SYMBOLS 1 Walk type management machine 11 Mission case 12 Engine 13 Fuel tank 13a Refueling port 20 Handle 21 Base side handle 22 Upper side handle 22b Loop part 23 Rotating shaft A Carrying can a Refueling port

Claims (2)

In the walking type management machine provided with an engine mounted on the mission case, provided with a fuel tank on the engine, and provided with a handle extending obliquely upward from the mission case,
The handle is composed of a base side handle and an upper side handle,
Between the base side handle and the upper side handle, a horizontal rotation shaft is provided at a height position substantially the same as the upper end of the fuel tank,
The upper handle is configured to be foldable and retractable by rotating to the fuel tank side with the rotating shaft as a fulcrum, and a mounting surface on which a carrying can can be mounted on the back surface of the upper handle. A walk-type management machine characterized by being formed. The walking type management machine according to claim 1,
The upper-side handle is configured in a loop shape, and the upper-side handle is configured not to interfere with at least a part of a fuel filler port provided in the upper portion of the fuel tank when folded and stored. Machine.

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