JPH0225748Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention relates to a control box mounting structure for mobile agricultural machinery.

Conventional technology Conventionally, various types of work equipment have been detachably connected to mobile agricultural machinery, and when the work equipment is attached or detached, the control box that supports the operating lever that operates the work machine is also attached or detached at the same time. It is. A control box is generally attached to a pipe handle of a mobile agricultural machine so as to be located near the operator's hand, and a typical conventional attachment structure will be explained with reference to FIGS. 6 and 7. A fixed holder 2 is fixed to a control box 1 that supports an operating lever (not shown), and this fixed holder 2 has a recess 4 that contacts the outer peripheral surface of a pipe handle 3 of a mobile agricultural machine and a recess 4 located on both sides of the recess 4. Flat parts 5 and 6 are formed. Furthermore, a movable holder 10 is provided, in which a recess 7 that abuts the outer peripheral surface of the pipe handle 3 and flat parts 8 and 9 located on both sides of the recess 7 are formed. Then, the movable holder 10 is placed opposite the fixed holder 2 with the pipe handle 3 in between, and the holes 11 formed in the flat parts 8 and 9 are
The bolt 13 inserted through the spring washer 12 is screwed into the nut 14 fixed to the flat parts 5 and 6, and the pipe handle 3 is tightened and fixed by the fixed holder 2 and the movable holder 10, thereby removing the pipe. Control box 1 to handle 3
is being installed.

Problems to be Solved by the Invention When attaching or detaching the control box 1, it is necessary to turn the bolt 13 using a tool such as a spanner, which is time-consuming. Particularly, when the work equipment is frequently attached and detached, work efficiency decreases. In addition, even if the hitch attachment part between the working machine and the mobile agricultural machine and the external transmission case attachment part for taking out the power are designed to be able to be attached and detached without using tools, they can be easily attached and detached. Since it takes time and effort to attach and detach the control box, it takes time and effort to attach and detach the work machine as a whole.

This invention was made in view of the above points, and the object is to provide a control box mounting structure for a mobile agricultural machine that allows the control box to be easily attached to and removed from the pipe handle in a short time.

Means for solving the problem Recessed portion 2 that comes into contact with the outer peripheral surface of pipe handle 24
6 and flat parts 27 located on both sides of this recessed part 26,
A fixed holder 29 having 28 is fixed to the control box 25. Also, pipe handle 2
A movable holder 36 is provided, which has a recess 33 in contact with the outer peripheral surface of the pipe handle 24 and flat parts 34 and 35 located on both sides of the recess 33, and faces the fixed holder 29 with the pipe handle 24 in between. One flat part 27 of the fixed holder 29 and the movable holder 36 facing each other
is connected to one flat portion 34 at a predetermined interval by a tightening screw 38. These flat parts 28, 3 are provided between the other flat part 28 of the fixed holder 29 and the other flat part 35 of the movable holder 36, which face each other.
A movable support shaft 40 is provided at a position where five members are connected and a position where the connected state is released. While engaging with the support shaft 40, the movable holder 36 is connected to the fixed holder 2.
An operating body 43 is provided with a manual operating part 42 which can be biased in the direction of 9 and fixed at a position where the pipe handle 24 is tightened and fixed by the movable holder 36 and the fixed holder 29.

Operation First, the movable holder 36 and the fixed holder 29, in which the flat portions 27 and 34 are connected to each other by the tightening screw 38, are positioned with the pipe handle 24 in between. Next, the support shaft 40 is attached to the other flat portion 28, 35.
The movable holder 36 is urged in the direction of the fixed holder 29 by the operating body 43, and the pipe handle 24 is tightened and fixed by the movable holder 36 and the fixed holder 29. At this position, the operating body 43 The control box 25 is then fixed to the pipe handle 24. Operation body 43
This operation is performed by manually operating the manual operation section 42 without using any tools. Furthermore, the operating body 43 is operated to a position where the pipe handle 24 is released from the fastened fixation between the movable holder 36 and the fixed holder 29, and the support shaft 40 is moved to a position where the connection between the flat parts 28 and 35 is released. , tightening screw 38
Movable holder 3 connected by chisel
6 and the fixed holder 29 are removed from the pipe handle 24, and the control box 25 is removed from the pipe handle 24. In this case, the operation of the operating body 43 is also possible without using any tools.
This is done by manually operating step 2.

Embodiment A first embodiment of this invention will be described based on FIGS. 1 to 3. A tilling rotary 16, which is a working machine, is detachably connected to the rear of the mobile agricultural machine 15. In addition, mobile agricultural machinery 15 and tillage rotary 1
6 and the hitch attachment part 17 and the mobile agricultural machine 1
The external transmission case mounting portion 20 that connects the transmission case 18 of No. 5 and the external transmission case 19 of the tilling rotary 16 has a structure that allows them to be attached and detached without using any tools. A transmission device 21 for changing the rotational speed of the rotary is attached to the tilling rotary 16, and a speed change lever 23, which is an operating lever, is connected to this speed change device 21 via a remote wire 22. It is supported by a control box 25 detachably attached to a pipe handle 24 of a mobile agricultural machine 15.

The control box 25 has a recess 26 and a recess 26 that come into contact with the outer peripheral surface of the pipe handle 24.
A fixed holder 29 having flat portions 27 and 28 located on both sides of the holder 6 is fixed. A hole 30 is formed in one flat portion 27, and this hole 30
The nut 31 is fixed facing the other flat part 2.
8 has an elongated hole notch 32 formed therein.

Next, a movable holder 36 has a recess 33 that contacts the outer peripheral surface of the pipe handle 24 and flat parts 34 and 35 located on both sides of the recess 33, and faces the fixed holder 29 with the pipe handle 24 in between. It is provided. A hole 37 is formed in one of the flat portions 34, and a tightening screw 38 is inserted through the hole 37 and the hole 30 and screwed onto the nut 31, so that the flat portions 27 and 34 are spaced apart from each other by a predetermined distance. They are also connected. The other flat portion 35 has a cutout hole 41 in which a support shaft 40 that is rotatably supported in the elongated hole cutout portion 32 by a spring pin 39 in a plane perpendicular to the axis of the pipe handle 24 is engaged. is formed. The support shaft 4
A lever 43, which is an operating body having a manual operation part 42, is engaged with the lever 43 so as to be slidable along the axial direction of the support shaft 40. A convex portion 45 is formed that comes into contact with the spring pin 44 when it is rotated 90 degrees in the direction of arrow A from the state shown.

In such a configuration, FIGS. 1 and 2 show a state in which the pipe handle 24 is held between the fixed holder 29 and the movable holder 36, and the fixed holder 29 and the movable holder 36 are It is in a state where it can be rotated freely. When the lever 43 is rotated 90 degrees in the direction of arrow A from this state, the convex portion 45 of the lever 43 comes into contact with the spring pin 44, and the lever 43 urges the movable holder 36 toward the fixed holder 29. As a result, the pipe handle 24 is tightened by the fixed holder 29 and the movable holder 36, and the attachment of the control box 25 to the pipe handle 24 is completed.

When removing the control box 25 fixedly attached to the pipe handle 24, the third
The lever 43 that has been rotated to the state shown in the figure is returned to the state shown in FIGS. 1 and 2, and then the lever 43
while sliding the support shaft 40 in the direction of arrow B.
is rotated together with lever 43 in the direction of arrow C.
As a result, the support shaft 40 is removed from the cutout hole 41, the space between the flat parts 28 and 35 becomes open, and the movable holder 36 becomes freely rotatable in the direction of arrow D using the tightening screw 38 as a fulcrum. Therefore, by rotating the movable holder 36 in the direction of arrow D, the flat portions 28, 3
5, widen the interval between them, lift the entire movable holder 36, fixed holder 29, control box 25, etc. upward, and remove the control box 25 from the pipe handle 24. Here, when removing the tillage rotary 16 from the mobile agricultural machine 15, the control box 25 can be removed from the pipe handle 24 without using any tools. The tillage rotary 1 can be disconnected without using any tools.
6 can be easily removed in a short time.

In addition, when attaching the control box 25 to the pipe handle 24, the movable holder 36 is connected to the fixed holder 29 using the tightening screw 38 so that the flat parts 27, 34 are spaced apart from each other by a predetermined distance. The movable holder 36 and the fixed holder 29 are attached to the pipe handle 24 with the interval between them widened.
Set them so that they are sandwiched between them. Thereafter, the control box 25 is attached to the pipe handle 24 by rotating the support shaft 40 and the lever 43 in the reverse order of the procedure for removing the control box 25. Further, when connecting the movable holder 36 and the fixed holder 29 by the tightening screw 38, the rotation operation of the tightening screw 38 can be easily performed with fingers, and by adjusting the interval between the flat parts 27 and 34 as appropriate. Pipe handle 2 of control box 25
The fixing strength can be adjusted to 4.

Next, a second embodiment of this invention will be explained based on FIGS. 4 and 5. Note that the same parts as those explained in FIGS. 1 to 3 are designated by the same reference numerals, and explanations thereof will be omitted. A hole 46 is formed in the flat part 28 of the fixed holder 29, and this hole 4
6, the nut 47 is fixed, and the movable holder 3
A hole 48 is formed in the flat portion 35 of 6. An operating body 51 is provided which is inserted through these holes 48 and 46 and includes a threaded portion 49 that is screwed onto the nut 47 and a grip portion 50 that is a manual operating portion. Note that the threaded portion 49 is connected to the flat portions 28 and 3.
5. A movable support shaft is used both in the position to connect the two members and in the position to release the connection state.

In such a configuration, the screw portion 49 is screwed into the nut 47, the grip portion 50 is grasped, and the operating body 5 is tightened.
1, the contact portion 52 of the operating body 51 contacts the flat portion 35 of the movable holder 36, biasing the movable holder 36 toward the fixed holder 29, and the movable holder 36 and fixed holder 29 move the pipe handle 24. is tightened, and the control box 25 is attached to the pipe handle 24.

Effects of the invention With this invention, as described above, the control box can be attached to the pipe handle by manually operating the operating body, and therefore the control box can be easily attached and detached without using tools. Moreover, it can be carried out in a short time, and the work equipment can be attached and detached in a short time, and the work efficiency can be improved.

[Brief explanation of drawings]

Figure 1 is a longitudinal rear view showing the first embodiment of this invention, Figure 2 is a side view thereof, Figure 3 is a side view showing the entire mobile agricultural machine and working machine, and Figure 4 is the second embodiment of this invention. FIG. 5 is a vertical cross-sectional rear view showing an embodiment of the present invention, FIG. 5 is a side view thereof, FIG. 6 is a vertical cross-sectional rear view showing a conventional example, and FIG. 7 is a side view thereof. 15... Mobile agricultural machine, 16... Tilling rotary (working machine), 23... Speed change lever (operation lever), 24
... Pipe handle, 25 ... Control box, 26 ... Recessed part, 27, 28 ... Flat part, 2
9... fixed holder, 33... recess, 34, 35...
... Flat part, 36 ... Movable holder, 38 ... Tightening screw, 40 ... Support shaft, 42 ... Manual operation part, 43 ...
... Lever (operating body), 49 ... Thread part (support shaft), 5
0... Grip section (manual operation section), 51... Operation body.

Claims (1)

[Scope of utility model registration request] In a control box that supports an operating lever for operating a work machine that is detachably connected to a mobile agricultural machine and is detachably attached to a pipe handle of the mobile farm machine, the control box includes a recess that abuts the outer circumferential surface of the pipe handle, and a recess that contacts the outer peripheral surface of the pipe handle; A fixed holder having flat portions located on both sides is fixed to the control box, and has a recessed portion abutting the outer peripheral surface of the pipe handle and flat portions located on both sides of the recessed portion, and a fixed holder having flat portions located on both sides of the pipe handle. A movable holder facing a fixed holder is provided, and one flat part of the fixed holder and one flat part of the movable holder that face each other are tightened to connect these flat parts with a predetermined interval. A support is provided with a screw, and is movable between the other flat part of the fixed holder and the other flat part of the movable holder, which face each other, between a position where these flat parts are connected and a position where the connected state is released. Set up an axis,
a manual operation part that engages with the support shaft and biases the movable holder in the direction of the fixed holder so that the pipe handle can be fixed at a position where the pipe handle is tightened and fixed by the movable holder and the fixed holder; A control box mounting structure for a mobile agricultural machine characterized by being provided with an operating body.