JPS6225087Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention is based on a storage unit installed in a binder that allows the aircraft to tilt forward and backward around the axle.
The present invention relates to a removable auxiliary wheel for a binder which has the necessary cushioning properties and which can be easily reset to its working position.

Some uniaxial binders are equipped with auxiliary wheels to help with unstable running.

However, conventional auxiliary wheels are often very complicated to store and take out, and because they are fixed, they are easily destroyed when they come into contact with obstacles, making them impractical. Ta.

Therefore, this invention allows storage and removal operations to be performed with a simple rotational operation, and also provides cushioning against obstacles, etc., ensuring ease of operation and safety, while also providing cushioning. To provide an auxiliary wheel that can be easily and quickly reset to the original operating position even when the vehicle is backed up.

Hereinafter, specific embodiments of this invention will be described with reference to the drawings.

1 and 2 are side and plan views of a binder to which this invention is applied, and the binder itself has a normal structure.

That is, the pre-processing section is equipped with a pulling case 1 and a divider 2, the reaping section is equipped with a cutting blade, and the conveying section is equipped with a conveying plate 3 and a conveying mechanism. Further, in the binding section, a needle or Nottabil type binding mechanism 4 is provided sandwiching a binding passage 5 formed in the left-right direction of the machine body. The running section has one or two wheels 7 mounted on a single axle 6, and the control section is equipped with a handle 8, an engine 9, etc., respectively.

With this configuration, the aircraft can tilt forward and backward around the wheels 6, and its center of gravity G
is set slightly forward of the wheel 7.

By the way, this invention has a pair of left and right arm bodies 1 slightly in front of the wheels 7 with a width interval approximately equal to the width of the aircraft body.
Auxiliary wheels 11, 11 attached to 0, 10
is configured to be freely rotatable around a support shaft 12.

The support shaft 12 is located on the upper surface of the binding mechanism 4 and extends into the space 14 between the drive shaft 13 to the binding mechanism 4 and the wheels 7.
established in In addition, if a mudguard 15 is provided in front of the wheel 7, this mudguard 15
and the drive shaft 13.

The arm bodies 10, 10 have a half-moon shape curved forward, and one end is pivotally connected to the support shaft 12, and a pin 16 is implanted in the appropriate position, so that the support shaft 12
A spring 18 is suspended between a fixing pin 17 provided diagonally above the front.

Figure 3 shows arm bodies 10, 10 and auxiliary wheel 1.
1 is an enlarged side view of essential parts showing the rotation state of wheels 1 and 11, their positions, etc. With the above configuration, the auxiliary wheels 11 and 11 rotate around the support shaft 12 in a range of A to D. Here, the position A is the stored position when not in use, and the position D is the operating position when in use.
Since the arm bodies 10, 10 and the auxiliary wheels 11, 1 attached thereto do not need to rotate beyond the ranges A to D, stoppers 19 and 20 are provided, respectively, to restrict this range.

The storage position A is a position where the auxiliary wheels 11, 11 are off the ground and located on the inner or outer side of the wheel 7, and the operating position D is a position where the auxiliary wheels 11, 11 are located on the inner or outer side of the wheel 7.
This is the position where the auxiliary wheels 11, 11 are in contact with the ground between a.

By the way, the spring 18 is attached to the auxiliary wheels 11, 1
1 is in the storage position A, the arm bodies 10, 10
so that it is always biased upward toward the storage position A.
Further, the positions of the pin 16 and the fixing pin 17 are set so that when they are in the working position 2, they are always urged forward toward the working position 2. Therefore, when the auxiliary wheels 11, 11 are rotated from the storage position A to the operating position D, there is a so-called dead center position where the wheels are not biased in either direction, and the position B is the dead center position corresponding to this position. It is set about halfway through the journey from I to Ni. The spring 18 generates the maximum tensile force (rotational force) at this dead center position B. Further, beyond this dead center position B, there is a point where the auxiliary wheels 11, 11 first touch the ground, and this position is the position C, which is the preparation position. Note that in order for the auxiliary wheels 11, 11 to rotate from the preparation position C to the operating position D, there is a downward (below the ground) stroke H, so this stroke H can be reduced by lifting the aircraft, etc. It has a ground effect that does not move unless it is absorbed.

As described above, the auxiliary wheels 11, 11 are appropriately stored or taken out for use, and this invention derives from the above structure and has the following effects.

First, when you want to set the auxiliary wheels 11, 11 to the operating position N, it is not necessary to bring them from the position A to the position N all at once, but just release your hands (feet) once they have passed the dead center position B. For example, by the action of the spring 18, the robot moves to the ready position C, and then stops at this ready position C by the above-mentioned ground action.After that, if the handle 8 is pushed down to increase the distance from the ground, the spring 18 also works. Automatically moves to working position C. At this time, since the auxiliary wheels 11, 11 are located just in front of the wheels 7, the ground action can be absorbed by only slightly pushing down the handle 8, and furthermore, this operation is realized by a pushing down motion that is easy for humans to operate.

Further, the auxiliary wheels 11, 11 have a cushioning effect even if they come into contact with an obstacle. That is, the auxiliary wheels 11, 11 can rotate rearward while being biased toward the operating position N around the support shaft 12, and the stroke amount H is not very large, so that they do not come into contact with an obstacle. Then, the impact force acts and the stroke amount H
The amount that the aircraft absorbs is enough for the aircraft to rise, easily rotate backwards, and retreat.

By adjusting the strength of the spring 18, the position of the fixing pin 17, etc. so that the amount of retreat does not exceed the dead center position B, the auxiliary wheels 11, 11 are returned to the ready position C again by the action of the spring 18. Therefore, by repeating the same operation as described above, it can be easily set to the working position.

Therefore, the rotation angle of the auxiliary wheels 11, 11 is sufficiently large, exceeding 90 degrees in the range A to D, and accordingly, the backward angle from the operating position N to the dead center position B is also large enough to withstand slight obstacles. There is enough room for the vehicle to run over the vehicle and not exceed the dead center position B. Further, in order to meet this purpose, it is suitable that the fixing pin 17 is located diagonally above the front of the support shaft 12 as described above, and the strength of the spring 18 is also set as appropriate.

As described above, according to this invention, it has been possible to realize an auxiliary wheel that can be reset easily and quickly without the defects of this type of auxiliary wheel, such as destruction due to contact with obstacles and the troublesome reset operation.

[Brief explanation of the drawing]

The drawings show a specific example of this invention; FIG. 1 is a side view, FIG. 2 is a plan view, and FIG. 3 is an enlarged side view of the main parts. 6...Axle, 7...Wheel, 8...Handle, 1
0...Arm body, 11...Auxiliary wheel, 12...Support shaft, 17...Fixing pin, 18...Spring,
A: Storage position of the auxiliary wheels, C: Also the ready position, D: Also the working position.

Claims (1)

[Scope of utility model registration request] This is an auxiliary wheel that is installed on the binder that allows the aircraft to tilt back and forth around the axle. In the auxiliary wheel of the binder configured to be rotatable to a storage position and an operating position, the support shaft of the arm body is installed in the front part of the wheel of the machine body,
Furthermore, a fixing pin is provided diagonally above the front part of the support shaft, and a spring is hung between the fixing pin and the arm body, and the dead center position of the spring formed by these is as follows. An auxiliary wheel for a binder, characterized in that the auxiliary wheel is set at an obliquely downward position at the rear of the support shaft, and a predetermined angle is formed between the working position of the auxiliary wheel centering on the support shaft and the dead center position.