JPH0137346Y2 - - Google Patents

Description

[Detailed description of the invention] Technical field of the invention This invention relates to a handle device for a mobile agricultural machine.

Technical background of the invention and its problems Conventionally, walking-type mobile agricultural machines have been used to perform work by rotating the handle rod to any position vertically or horizontally depending on the working conditions and type of work. be. A locking mechanism that locks the handlebar by rotating it to an arbitrary position in the vertical direction and a locking mechanism that locks the handlebar by rotating it to an arbitrary position in the horizontal direction are provided, and the locking state of each locking mechanism can be controlled intermittently. Two operating levers are provided. These control levers are generally attached to the handlebar, and since control levers of similar shape are located close to each other, there is a risk of erroneous operation. Further, it is necessary to attach an operating lever for operating the accelerator, brake, etc. to the handlebar, and it is difficult to install two operating levers for rotating the handlebar within the narrow space of the handlebar.

Purpose of the invention This invention was made in view of the above points, and the handle rod can be rotated to any position vertically and horizontally by operating a single operating lever, and It is an object of the present invention to provide a handle device for a mobile agricultural machine capable of selecting which of the vertical and horizontal directions to move earlier. The purpose is to obtain a handle device for mobile agricultural machinery.

Summary of the invention This invention includes a handle rod that can be freely rotated vertically and horizontally on the body of a mobile agricultural machine, and a first locking mechanism that locks the handle rod at any rotational position in the vertical direction; By providing a second locking mechanism that locks in the rotational position, and providing one operating lever on the handle rod that intermittently operates the locking state of the first locking mechanism and the second locking mechanism, one operating lever is provided. The handlebar can be rotated to any position vertically and horizontally by a one-touch operation, and the operating lever can be easily installed in a narrow space on the handlebar. A timing adjustment means is provided between either the locking mechanism or the second locking mechanism and the operating lever to adjust the timing of intermittent locking by changing the length of the connection. The configuration is such that it is possible to select whether to speed up the operation timing.

Embodiment of the invention An embodiment of the invention will be described based on the drawings. A handle base 3 is fixed to the upper part of a transmission case 2 of a body 1 of the mobile agricultural machine, and a boss part 5 of a main handle 4 is fitted into the handle base 3. The boss portion 5 has an axis in the vertical direction,
The main handle 4 is provided so as to be rotatable in the left and right directions about this axis. A bolt 6 having a horizontal axis is attached to one end of the main handle 4, and a pipe handle 7 is connected to the bolt 6 so as to be vertically rotatable about the axis. 4 constitutes a handle bar 8. Note that the bolt 6
A pipe 10 with a chrysanthemum seat 9 welded to one end is fitted onto the outside of the pipe 10, and a pipe 13 that receives an index 12 in which a plurality of locking holes 11 are arranged in the vertical direction is attached to the key 14. The pipe 15 for the spacer is fitted onto the outside while being prevented from rotating through the spacer. Further, a chrysanthemum seat 16 is fitted onto the other end of the pipe 10 via the key 14 while preventing rotation, and these chrysanthemum seats 9 and 16 are engaged with the chrysanthemum seat portion 17 of the pipe handle 7. There is.

A bolt 18 having a horizontal axis is provided at a position close to the boss portion 5 of the main handle 4, and this bolt 18 is constantly biased by a spring 19 in the direction of arrow a shown in FIG. A locking pin 20 is fitted onto the outside. The handle base 3 has a plurality of locking holes 21 in the left and right direction.
An index 22 having an array formed thereon is fixed,
The locking pin 20 is locked in one of the locking holes 21 to lock the main handle 4 from rotating in the left and right direction. The lock pin 20, spring 19, index 22, etc. constitute a second lock mechanism 23.

The pipe handle 7 of the main handle 4
A cylindrical body 24 is fixed at a position close to the connecting portion, and a support pin 25 is slidably housed within the cylindrical body 24. This support pin 25 is always urged in the direction of arrow b shown in FIG. The vertical rotation movement of the handle 7 is locked. The cylindrical body 24, support pin 25, spring 26, index 12, etc. constitute a first lock mechanism 27.

A shaft 28 having an axis parallel to the bolt 18 is provided at a substantially intermediate position between the bolt 18 and the cylindrical body 24 of the main handle 4. An arm 29 is fitted onto the shaft 28 so as to be rotatable about the axis of the shaft 28, and one end of a wire 31 is connected to the arm 29 by a pin 30. The other end of the wire 31 is connected to an operating lever 32 attached to the pipe handle 7. Further, the arm 29 and the lock pin 20 are connected through a rod 33, and the arm 20 and the support pin 25 are connected through a rod 34 and an adjusting bolt 35. This rod 3
4 and the adjusting bolt 35 serve as timing adjustment means for adjusting the timing of locking and discontinuing the lock state and selecting which of the vertical and horizontal directions to move earlier.

In such a configuration, when the operating lever 32 is not operated, the lock pin 20 is locked in the locking hole 21 of the index 22 by the biasing force of the spring 19, preventing the main handle 4 from rotating in the left and right direction. The operation is locked. Further, the support pin 25 is locked in the locking hole 11 of the index 12 by the biasing force of the spring 26, thereby locking the vertical rotation movement of the pipe handle 4.

Next, when the operating lever 32 is squeezed, the wire 31 is pulled and the arm 29 is rotated in the direction of arrow c shown in FIG. This rotation of the arm 29 causes the rod 34 and adjuster bolt 3 to
5, the support pin 25 is pulled in the direction of arrow b', the support pin 25 comes out of the locking hole 11, and the pipe handle 7 is rotated in the vertical direction around the axis of the bolt 6 together with the pipe 10, index 12, etc. Be able to move freely. On the other hand, the lock pin 20 is connected via the rod 33.
is pulled, the lock pin 20 rotates in the direction of arrow a' around the axis of the bolt 18 and comes out of the locking hole 21 of the index 22, and the main handle 4 rotates in the left-right direction around the axis of the boss 5. Become free. Then, when the pipe handle 7 is rotated to an arbitrary position in the vertical direction and the main handle 4 is rotated to an arbitrary position in the horizontal direction and released from the operating lever 32, the support pin 25 is moved by the biasing force of the spring 26. The lock pin 20 slides in the direction b and is locked in the opposing locking hole 11, and the lock pin 20 rotates in the direction of the arrow a by the biasing force of the spring 18 and locks in the locking hole 21 facing the lock pin 20.
The vertical rotation movement of the pipe handle 7 and the left and right rotation movement of the main handle 4 are locked.

First lock mechanism 27 and second lock mechanism 23
The timing of unlocking can be changed by adjusting the adjustment bolt 35, and when the operating lever 32 is lightly grasped, only the first locking mechanism 27 is unlocked and the operation is stopped. It is also possible to perform only the vertical rotation operation of the pipe handle 7, which is frequently performed.

Note that in this embodiment, the pipe handle 7
Although the pipe handle 7 is rotated in the vertical direction and the main handle 4 is rotated in the left-right direction, the pipe handle 7 may be rotated in the left-right direction and the main handle 4 is rotated in the vertical direction.

In addition, in this embodiment, the handle bar 8 consists of the main handle 4 and the pipe handle 7,
Although the pipe handle 7 is rotated in the vertical direction and the main handle 4 is rotated in the left-right direction, it is also possible to rotate the integrally constructed handle rod in the vertical direction and the left-right direction. .

Effects of the invention As described above, this invention enables the locking mechanism that locks the vertical rotation of the handle rod and the lock mechanism that locks the horizontal rotation of the handle rod to be switched on and off in a single device. This can be done using the operating lever, and therefore the handle rod can be rotated vertically and horizontally with just one touch, and since there is only one operating lever, erroneous operation can be prevented, and space is also saved. It has the advantage of being easy to install on narrow handle bars.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figure is a side view of the whole, FIG. 2 is a vertical cross-sectional side view showing a part thereof enlarged, and FIG. 3 is a bottom view showing a part enlarged and a cross section. 1... Body, 8... Handle bar, 23... Lock mechanism, 27... Lock mechanism, 32... Operating lever.

Claims (1)

[Scope of utility model registration request] The body of the mobile agricultural machine is provided with a handle rod that can be freely rotated in the vertical and horizontal directions, and includes an index in which a plurality of locking holes are arranged in the vertical direction and a support pin that is inserted into any of the locking holes. A first locking mechanism is provided for locking the handle rod at any rotational position in the vertical direction, and the locking mechanism is inserted into one of the locking holes and an index in which a plurality of locking holes are arranged in the left-right direction. A second lock mechanism is provided which is connected to a lock pin and locks the handlebar at any rotational position in the left and right direction, and is connected to the first lock mechanism and the second lock mechanism via a wire. A single operating lever for intermittent operation of the locked state is attached to the handle rod,
A timing adjusting means is provided between either the first locking mechanism or the second locking mechanism and the operating lever to adjust the timing of intermittent locking by changing the length of the connection. Handle device for mobile agricultural machinery.