JP3270910B2 - Management machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a management machine used for various kinds of agricultural work such as plowing and furrowing.

[0002]

2. Description of the Related Art Conventionally, this kind of management machine has an engine mounted on a front upper portion of a fuselage, and a transmission case for transmitting rotational power of the engine to driving wheels and a rotary device at a rear side of the fuselage. An operation handle is mounted on an upper side of the transmission case via a handle support frame. In addition, a stand made up of one or a pair of left and right two legs is swingably provided on the front side of the drive wheels in the body so as to be able to swing between an upright position for standing up with respect to the body and a storage position on the lower side of the body. Provided, when performing various work in the field, the stand is held in the storage position, and when the aircraft is stored or when the work in the field is temporarily interrupted,
The stand is held upright at the upright position.

[0003]

However, the stand is merely provided so as to be swingable between an upright position and a storage position so that it can be held at each of these positions. In order to change the position, the operator must go out to the front side of the fuselage to perform the swinging operation of the stand. Therefore, the operation of standing up and storing the stand is troublesome and time-consuming. When the position is changed to the position or the upright position, the operator needs to lift the front side of the fuselage upward around the drive wheels, and in such a state, swing the stand to the upright position or the storage position. Also, there is a problem that the storing operation is difficult to perform.

[0004] It is an object of the present invention to provide a management machine which can easily perform the operation of standing up and storing the stand by operating a handle near the handle.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above objects, the present invention provides an airframe supported by one drive wheel, an engine and a transmission case mounted on the airframe, and a standing position and a storage position. In a management machine having left and right stands mounted on the front side of the body so as to be able to swing, and a handle mounted on the rear side of the body, the stand is separated into left and right, and An urging body for urging each of the stands to the upright position, a stand carrier for interlocking the swing of the stand to the storage position, and an operation lever mounted on the handle to operate the stand carrier are provided. Things.

[0006]

First, when each stand is stored from the standing position to the storage position in order to perform various operations in the field, the operating lever mounted on the handle is urged toward the standing position. Each of the stands is swung to a storage position on the lower side of the fuselage via a stand carrier by forcibly performing a swing operation against the urging body, and the storage of the stand is performed by holding the position of the stand by the operation lever. It is stored and held in the position.

[0007] Further, when the stand is to be moved from the storage position to the standing position when the management machine is stored or when the work in the field is temporarily interrupted, the operation lever is moved in the unlocking direction. By performing the swing operation, each stand is swung forward from the storage position via the urging body, and the tip side of each stand is grounded before the standing position. And grip the handle in such a state,
The body is tilted to one side in the lateral direction of the body with one drive wheel as a fulcrum, and the one stand is swung to the upright position by the urging force of the urging body by lifting the one stand upward from the ground. Held upright, and after this,
The body is tilted to the other side with the one side stand and the drive wheel as fulcrums, and the other side stand is lifted up from the ground, so that the other side stand is swung to the upright position by the urging force of the urging body and held. Is done.

As described above, when the respective stands are stored from the upright position, the operation of storing the stands in the storage position can be performed by the operation lever mounted on the handle, and the respective stands can be pivoted independently. In addition, since the urging body is urged in the upright direction, when the erected body is to be erected from the stowed position, it is swung in the upright direction by releasing the position held by the operation lever. The stand can be easily set up and stored at the handle side without the operator going to the front side of the machine and swinging each stand. Can be.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The management machine shown in FIG. One drive wheel 4 is supported via a transmission case 31 and a work device 5 such as a rotary device is supported on a lower rear side via a work transmission case 51, and is transmitted from the engine 2 to the transmission case 3. An operation handle 6 is mounted on the upper side of the transmission case 3 via a handle support frame 61 while transmitting the rotational power to the drive wheel 4 and the working device 5.

At the lower front end of the body 1, a pair of right and left support brackets 7 having a pair of left and right support plates 71, 71 facing each other and having a lower U-shaped cross section are attached. Stands 8, 8
3 are respectively supported so as to be swingable at a storage position on the lower side of the fuselage indicated by a solid line and a standing position which is substantially vertically raised below the fuselage 1 indicated by a virtual line.

As shown in FIGS. 1 and 2, each of the stands 8 includes a leg portion 81, a grounding member 82 provided at a tip end side of the leg portion 81, and a base portion side of the leg portion 81. A fixed swing member 83 is provided. The swing member 83 has a U-shape whose front side is opened by a pair of left and right side plates 83a facing each other and a connecting plate 83b connecting the side plates 83a. The base portion of the leg portion 81 is fixed to the inner surface side of the connecting plate 83b by welding or the like. The swing members 83 of the respective stands 8 are disposed at both left and right positions inside the bracket 7, and the left and right side plates 83 a, 83 a of the respective swing members 83 are attached to the respective support plates 7 of the bracket 7.
1 and 71, and is swingably inserted into and supported by a shaft rod 72 inserted between the left and right side plates 83a and 83a of each swing member 83.
Biasing members 10 and 1 formed of torsion springs for biasing the respective stands 8 toward the upright position around the shaft 72 between 83a.
0, and a pair of spring feet 10a, 10b extending from both sides in the length direction of each torsion spring 10 are positioned on the support plate 71 of the bracket 7 and on the inner side of the rocking member 83. Each stand 8 is always biased toward the upright position side by the spring reaction force of each of the torsion springs 10 by being locked to the one side plate 83a. The bracket 7 is provided with a receiving member 73 extending downward from a central portion thereof, and the receiving member 73 supports an intermediate portion in the longitudinal direction of the shaft rod 72.

The bracket 7 is provided with a stand carrier 9 for changing the positions of the stands 8, 8 from the upright position to the storage position. The stand carrier 9 is provided with a support plate 71 for the bracket 7. A pair of left and right swing operation plates 91, 91 which are swingably supported by the protruding ends of the shaft rod 72 at both outer sides of the operation plate 9;
1 and a stand pushing rod 92 located on the front side of the leg portion 81 of each stand 8. The stand pushing rod 92 of the carrier 9 is provided on the handle 6. The outer cylinder 9 is attached to the operated lever 93.
They are linked via an operation cable composed of the inner wire 5 and the inner wire 96. That is, as is apparent from FIG.
Outer receiving plates 94, 94 are provided near the mounting position of the bracket 7 on the body 1 and the handle 6, respectively.
Are attached to each of the outer receiving plates 94 to support the outer receiving members 95a connected to both sides of the outer tube 95 in the longitudinal direction, respectively. At both ends, one end of the stand pushing rod 92 in the longitudinal direction and the operation lever 9
And 3

More specifically, a support member 97 having the outer receiving plate 94 is provided below the handle 6 at the lower side of the hand side.
, The tip boss 98 of the operation lever 93 is pivotally supported on the support member 97 via a pivot, and the boss 98 amplifies the amount of rotation of the boss 98 to amplify the rotation. A substantially U-shaped operating rod 99 that transmits to the stand pushing rod 92 is fixed, and one end of the inner wire 96 is connected to the distal end of the operating rod 99. Then, as shown by the solid line in FIG. 3, by swinging the operation lever 93 to the front side, the inner wire 96 is pulled to move the stand pushing rod 92 to swing the operation plate 91. , And each stand 8 is pushed by the stand pushing rod 92, and each stand 8 swings to the storage position on the lower side of the machine body against the urging force of the torsion spring 10. And, as indicated by a virtual line, the operation lever 9
By swinging the back 3, the tension of the inner wire 96 is released, and the stands 8 are stored while pushing back the stand pushing rod 92 by the spring reaction force of the torsion spring 10. It swings from the position to the standing position.

A friction mechanism having resistance greater than the urging force of the torsion spring 10 is provided between the boss 98 of the operation lever 93 and the pivot supporting the boss 98. The operating lever 93 can be held at the solid line position by overcoming the torsion spring 10;
Each of the stands 8 can be held at the storage position.
In order to hold each of the stands 8 in the storage position, a guide plate having a guide groove for guiding the operation lever 93 is provided on the support member 97, not shown, and is engaged with a part of the guide groove. When the stand 8 is located at the storage position by forming a groove, the operating lever 9 is inserted into the locking groove.
Each stand 8 may be stored and held at the storage position by locking the 3. In each of the figures, reference numeral 11 denotes a bumper provided on the front end side of the body 1, and its base end side is fixed to both side portions of the bracket 7.

Next, the operation of the management device having the above configuration will be described. First, when performing work in the field, the stand 8 is held in the storage position as shown by the solid line in FIG. 3, and the position change to the storage position is provided near the hand side of the handle 6. Operating lever 93
This is performed by swinging the respective stands 8 to the front side against the respective torsion springs 10 biasing the stands 8 toward the upright position. That is, by this swing operation, the inner wire 9
6, the push rods 92 of the stand are pushed up rearward and upward by the swinging of the operation plates 91, and the leg portions 81 of the stands 8 are pushed by the pushing up. A friction mechanism which is simultaneously swung to the lower storage position and interposed between the boss 98 of the operation lever 93 and the pivot;
The operation lever 93 is locked by locking the guide plate into the guide groove, and the entire stand 8 is stored and held at the storage position indicated by the solid line in FIG. Then, the rotary wheel 5 is driven to rotate along the ground A of the field shown by the solid line in FIG.

Further, when the operation of the management machine is retracted or the work in the field is temporarily interrupted, the operation lever 93 is swung rearward as shown by the phantom line in FIG. Do. That is, the tension by the inner wire 96 is released by this swing operation, and as a result, each stand 8 is raised from the storage position while pushing back the stand pushing rod 92 by the urging force of the torsion spring 10. The grounding member 82 of each stand 8 is grounded to the ground A on the near side of the standing position.

In this state, the handle 6 is gripped, the body 1 is tilted to one side in the lateral direction of the body with one drive wheel 4 as a fulcrum, and the one-side stand 8 is lifted upward from the ground A. The one-side stand 8 is swung to the upright position by the urging force of the torsion spring 10 and is held in the upright position. The body 1 is tilted to the other side with the driving wheel 9 as a fulcrum, and the other side stand 8 is
, The other stand 8 is swung to the upright position by the urging force of the torsion spring 10 and held. Therefore, the stands 8 are held upright, and the grounding member 83 of each stand 8 is grounded on the ground A shown by the imaginary line in FIG. In the state in which the object 5 has levitated above the ground, the entire body is held upright without falling over.

As described above, when each of the stands 8 is stored from the upright position, the operation lever 93 provided on the handle 6 is swung to hold the operation lever 93 at the stand storage position. Therefore, each stand 8 is stored by hand operation using the operation lever 92, and by releasing the position holding by the operation lever 93, each stand 8 is swung in the upright direction. By tilting the body 1 in the left-right direction, the respective stands 8 can be erected. Therefore, even if the operator does not go to the front side of the body 1 and perform the swing operation of the respective stands 8, The erecting and storing operations of the stand can be easily performed on the hand side of the handle 5.

[0019]

As described above, according to the present invention,
By operating the operation lever attached to the handle in one direction, the left and right stands can be swung to the storage position via the stand carrier, and by operating the operation lever in the other direction, the left and right Since the urging bodies are individually swung to the upright position, there is no need for the operator to go out to the front side of the airframe and swing the left and right stands. be able to.

[Brief description of the drawings]

FIG. 1 is a front view showing a stand mounting portion at a front portion of a management machine according to an embodiment of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a side view showing the overall structure of the management device.

[Explanation of symbols]

 Reference Signs List 1 body 2 engine 3 transmission case 4 drive wheel 6 handle 61 handle support frame 8 stand 9 operating body 93 operating lever 10 biasing body

──────────────────────────────────────────────────続 き Continued on the front page (72) Eiji Yamazaki, Inventor 5-32-7 Sendagaya, Shibuya-ku, Tokyo Inside Ishikawajima Shibaura Machinery Co., Ltd. 2-84761 (JP, U) Japanese Utility Model 4-7288 (JP, U) Japanese Utility Model 55634 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) B62D 51/06

Claims (1)

(57) [Claims] 1. An airframe supported on one drive wheel;
The engine and transmission case mounted on the fuselage
It is possible to swing to the standing position and the storage position
The left and right stands attached, and attached to the rear side of the aircraft
And a handle provided with a handle.
Are separated to the left and right.
Urging body for urging, and swinging of the stand to the storage position
To the stand carrier and the handle
Operation to be mounted and to operate the stand carrier
A management machine comprising a lever and a lever .