JPS629764Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a connection device for a ground leveling plate attached to a tillage rotary or the like.

Conventionally, there is a tillage rotary in which a ground leveling plate extending to the rear can be separated into upper and lower sections depending on the type of work. However, the lower leveling plate is heavy, making it difficult to hold and requiring a lot of effort to attach and detach.

This idea was developed in consideration of these points, and the purpose is to provide a connection device for the lower leveling plate that can be easily held without increasing the number of parts and that can be easily attached to and removed from the upper leveling plate. That is.

This idea involves removing one end of the connecting rod that connects the upper leveling plate and the lower leveling plate from the upper leveling plate and connecting it to a holding part provided on the lower leveling plate, so that both ends are held by the lower leveling plate. The connecting rod is used as a handle, so that the lower leveling plate can be easily attached and detached, and the function as a handle can be obtained without increasing the number of parts.

An embodiment of this invention will be explained based on the drawings.
1 is a tilling rotary, and an upper ground leveling plate 2 is attached to the rear of the body of the tilling rotary 1. Brackets 4 for holding the lower leveling plate 3 are attached to both sides of the upper leveling plate 2 by bolts 5 so as to be vertically adjustable. That is, these brackets 4 have pins 6 provided on both sides of the lower leveling plate 3.
A groove 7 is formed to support the holder from below and hold it rotatably around the left and right axes, and a stopper 8 facing rearward is formed. Further, a retaining pin 10 biased by a spring 9 is inserted into the bracket 4. A stopper 11 bent in a J-shape is formed at the rear end of these retaining pins 10.

Furthermore, one end of two connecting rods 12 is connected to the upper leveling plate 2 in a detachable and vertically movable manner, and the other ends of two connecting rods 12 are attached to the lower leveling plate 3 in a vertically movable manner. An attachment hole 13 is formed in the lower leveling plate 3, which is a holding portion for holding one end of these connecting rods 12 when they are removed from the upper leveling plate 2. Actually, a similar mounting hole is formed in the connecting rod 12, and a pin 14 is passed through the mounting hole and the mounting hole 13 for connection.

In this configuration, the pin 6 of the lower leveling plate 3 is rotatably supported by the groove 7 of the bracket 4, as shown in FIG. 5b, and is prevented from moving upward by the retaining pin 10. In addition, the lower leveling plate 3 is connected to the connecting rod 1 as shown in FIGS. 1 and 2.
2 is connected to the upper leveling plate 2 in a suspended state. Even in this state, both ends of the connecting rod 12 are connected to pin 1.
4, which are connected so that they can move up and down freely.
Therefore, attachment holes 15 similar to the attachment holes 13 are also formed in the upper edge of the lower leveling plate 3 and the stay 16 of the upper leveling plate 2.

However, if you want to deepen the plowing depth, it is necessary to remove the lower leveling plate 3, but first, remove the pin 1.
4 and connect one end of the connecting rod 12 to the upper leveling plate 2.
3, and its one end is connected to the mounting hole 13 of the lower leveling plate 3 with a pin 14, as shown in FIG. Next, as shown in FIG. 5a, the retaining pin 10 is
is pulled rearward and turned 90 degrees to join the stoppers 8 and 11, and the pin 6 of the lower leveling plate 3 is removed from the groove 7 while maintaining the retaining pin 10 in the retracted state. At this time,
Connecting rod 1 held at both ends by lower leveling plate 3
2 shows the action of the handle and is extremely easy to hold. Even when the lower leveling plate 3 is not needed, the connecting rod 12 is held by the lower leveling plate 3 so that it will not be lost. Conversely, when connecting the lower leveling plate 3 to the upper leveling plate 2, it is performed by the reverse operation of the above-mentioned operation.
At this time as well, since the connecting rod 12 can be grasped as a handle, attachment to the bracket 4 is easy.

Since this invention is constructed as described above, one end of the connecting rod connecting the upper leveling plate and the lower leveling plate is removed from the upper leveling plate and connected to the lower leveling plate,
The connecting rod, which is held at both ends by the lower leveling plate, can be used as a handle, making it easier to carry the heavy lower leveling plate and making it easier to attach and remove it from the upper leveling plate. It also has the advantage that it can be obtained without increasing the number of parts.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figure is a perspective view, Figure 2 is an enlarged vertical side view of the connecting rod connected to the upper and lower leveling plates, and Figure 3 is an enlarged view of the connecting rod with both ends held by the lower leveling plate. Fig. 4 is a partially enlarged exploded perspective view showing the attachment relationship between the bracket and the lower leveling plate, and Fig. 5 is a further enlarged and cutaway view showing how the pins of the lower leveling plate are attached to the bracket. FIG. 2... Upper leveling plate, 3... Lower leveling plate, 12...
...Connection rod, 13...Mounting hole (holding part).

Claims (1)

[Scope of utility model registration request] An upper leveling plate and a lower leveling plate are provided which are detachably connected to each other, one end of which is detachably connected to the upper leveling plate, and the other end of a connecting rod is attached to the lower leveling plate so as to be vertically movable; A connecting device for a ground leveling plate, characterized in that the lower leveling plate is provided with a holding portion that detachably holds one end of the connecting rod when the lower leveling plate is separated from the upper leveling plate.