JPS5837201Y2 - Kounkiniokeru Shiyukuratsuchirendoureba-souchi - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a main clutch interlocking lever device for a tiller.

The main clutch lever of the tiller is installed in the case near the bundle, but since this is operated from above the bundle, when the bundle is lifted,
The disadvantage is that the main clutch lever is located too high and is difficult to operate.

This proposal is an improvement on this, and includes a lower lever that interlocks with the main clutch lever so that the main clutch lever can be easily operated even if the bundle part is lifted and the main clutch lever is in a higher position. It is provided so that it can freely rotate forward and backward, and even if the clutch is released with the lower lever, the lower lever can automatically return to its original position on the aircraft side.
In addition to ensuring that subsequent operations are not hindered, operational safety is also taken into consideration by housing the interlocking connection portion between the main clutch lever and the lower lever within the case.

The embodiments shown in the drawings will be described below.

Reference numeral 1 denotes a case interposed between a pair of left and right bundles 2 and 2', on which the base of a main clutch lever 3 is pivotally supported so that it can move back and forth and left and right. 4 and protrudes above the bundles 2, 2'.

In FIG. 5, a, b, and c indicate the locking positions of the main clutch lever in the guide groove 4, such as OFF, OFF, and BRAKE.

Further, as shown in FIG. 3, the base of the main clutch lever 3 is loosely attached to a shaft 5 protruding inside the case 1, and a spring 6 interposed between the case 1 and the lever 3 causes the lever 3 to be rotated. The lever is always biased to be pulled toward the lock position, and the spring 6 is used as a buffer, and the left and right ends of the shaft hole 7 of the lever are made into an arc shape, so that the lever can be tilted left and right.

Eight ends of an inner wire for operating the clutch are attached to the middle of the main clutch lever 3 via an inner wire attachment member 15.

Reference numeral 9 denotes a lower lever, which is attached downward to the case 1 and is rotatable back and forth about a shaft 10 inside the case 1.

This and the main clutch lever 3 are connected to each other by a link 11 so as to operate in conjunction with each other.

In the connection structure shown in FIG.
It is pivotally connected by a pin 13 slightly below 0.

When the main clutch lever 3 is in the human position, the lower lever 9 is mounted so as to face forward.

Therefore, in the case of the connection structure shown in FIG. 2, when the main clutch lever 3 is inserted into the person's position a along the guide groove 4, the main clutch lever 3 is locked in the state shown by the solid line in FIG. , the lower lever 9 is pulled forward by the link 11 and tilted forward.

If the 7'% handles 2, 2' are lifted up for some reason, if you pull the lower lever 9 towards you and then release it, it will move as shown by the chain line in Figure 2. Link 11
As the main clutch lever 3 is pulled rearward via the main clutch lever 3, the main clutch lever 3 is immediately automatically locked in the disengaged position of the guide groove 4 by the elastic force of the spring 6, and the clutch is disengaged.
The aircraft will not move forward while the handle 2゜2' is lifted, thus making it possible to prevent accidents.

In addition, in FIG. 1, 14 indicates the cultivator main body.

As mentioned above, the connection structure shown in Figure 2 allows the clutch to be disengaged using the lower lever when the handle is lifted, but in order to return the lower lever after disengaging the clutch, it is necessary to The main clutch lever must be operated.

Therefore, in this proposal, the lower lever can be automatically returned to its original position regardless of the main clutch lever, so that it will not interfere with subsequent operations, and the main clutch lever will be automatically returned to its original position. Operational safety is also ensured by housing the interlocking connection portion between the clutch lever and the lower lever within the case.

That is, in the present invention, as shown in FIG.
The main clutch lever 3 and the lower lever 9 that are in the zero position are connected to a link 11 that is pivotally connected near the shaft attachment portion 5 of the main clutch lever 3.
The shaft attachment part 1 of the lower lever 9 is inserted into the elongated hole 11a provided at the other end.
By slidably engaging the pin 13 provided near 0, the two are interlocked and connected, and by winding the spring 10a back to the shaft attachment 10 of the lower lever 9, the lower lever 9 can be moved. It is constructed so that it is attached to the body side of the tiller and is always locked to a stopper part 1a of the case 1.

Therefore, as in the case of FIG. 2 described above, by pulling the lower lever 9 toward you, the main clutch lever 3 is also pulled via the link 11 to disengage the clutch, and the main clutch lever 3 is indicated by the solid line in FIG. It moves from the position to the position of the imaginary line and is locked.

However, the lower lever 9 automatically returns to its original position when the pin 13 slides in the elongated hole 11a by a return spring 10a wound around the shaft fitting 10, and the stopper part 1
It stops when it is locked in a.

As described above, the main clutch lever of the present invention is designed to interlock with the lower lever through a link, so even if the handle is lifted and the main clutch lever is in a high position, making it difficult to operate, the lower lever The main clutch can be immediately disengaged using the lever, which has the advantage of preventing unexpected accidents caused by the handle being lifted, and even if the clutch is disengaged, the lower lever does not By sliding the return spring and the pin through the elongated hole provided in the link, it is possible to automatically return to the position where it is locked to a part of the stopper of the case, so the lower lever can be returned to its original position. There is no need to operate the main clutch lever each time to return it to the position, and even if the main clutch lever is operated, the lower lever does not swing each time, and the lower lever always returns to the aircraft side. Therefore, it does not interfere with your work,
It will not interfere with your work.

Moreover, since the interlocking connection part between the main clutch lever and the lower lever is housed within the case, there is no need to touch this part during work, making it safe.

[Brief explanation of drawings]

Figure 1 is a side view of a cultivator with the proposed device, Figure 2 is a side sectional view of a cultivator with a different connection structure than the proposed device, with the case cut away, and Figures 3 and 4 are Figure 2A. 5 is a plan view of only the case, and FIG. 6 is a side sectional view of the proposed device. DESCRIPTION OF SYMBOLS 1... Case, 2, 2'... Handle, 3... Main clutch lever 19... Lower lever, 10a... Return spring, 11... Link, 11a... Long hole, 13・
··pin.

Claims (1)

[Scope of utility model registration request] Separately from the main clutch lever, which is operated from above the bundle with respect to the case near the bundle part, a downward-facing lower lever is provided so as to be rotatable back and forth, and the main clutch lever is pivoted near the shaft attachment part inside the case. A long hole is provided at the other end of the link, into which a pin provided near the shaft mounting part in the case of the lower lever is slidably engaged, and a spring is provided to return the lower lever to the shaft mounting position, and this return spring A main clutch interlocking lever device for a power tiller, in which the lower lever is urged toward the machine body so as to be permanently locked on a part of the stopper of the case, and the main clutch lever and the lower lever are interlocked and connected to each other.