JPS5927687Y2 - Extension device for puddling leveling plate - Google Patents

Description

[Detailed explanation of the idea] This invention relates to an extension device for a puddling leveling plate.

As is well known, the puddling leveling plate consists of a puddling leveling plate main body having a predetermined width and an extension plate attached to two sides of the main body, which can be extended as necessary.

Here, it is necessary that the extension board can be configured to easily extend the ground leveling board itself, and when it is not used for extension, it is desirable that it be convenient to store and carry. It is something.

However, in the conventional method, the main body of the ground leveling plate and the extension plate were simply connected using bolts, bolts, nuts, etc., which made removal work extremely troublesome, and furthermore, when the extension plate was removed, the extension plate could not be mounted on the tractor. The need to hang them up or store them somewhere else has caused inconvenience in handling, and it is hoped that these problems can be solved.

This invention was devised to solve the above problem, and its purpose is to configure the extension board for extension in an extremely simple manner, and to make it possible to configure the extension board for extension when it is not used for extension. The purpose of the present invention is to provide an extension device for a puddling leveling plate that is extremely easy to handle by simply folding it back to the side of the grading plate body. Arrange extension plate 18 and hinge 19
In this case, a cylindrical guide 21° 21 is provided horizontally at the front end of each of the puddling leveling plate main body 17 and the extension plate 18, and is concentric in the left-right relationship. An extension plate 18 is installed inside the guide 21 of the substituting ground plate main body 17.
A lock par 25 that slides forward and backward with respect to the guide 21 side is fitted, and a reciprocating lever 22 protruding from the lock par 25 is slid forward and backward into a groove-shaped lever guide 23 provided in the guide 21 on the side of the purge leveling plate main body 17. As well as freely moving forward and backward lever 2
2 is that a cylindrical cover 2'6 that can move forward and backward is fixed to the guide 2121 by advancing in the extension direction and fitting in a surrounding manner between both guides 2121.

The specific examples shown in the drawings will be described below.

1 to 4 show an example in which a tilling device 2 is towed on the rear of an agricultural tractor (not shown) via an elevating link mechanism 1, and a plowing device 3 is attached to the rear of the device 2. .

In the tilling device 2, the tilling claws 4 are rotatable on the lower part, and the rear cover 5 is installed in the rear part in a downward position, and the well-known tilling depth adjustment mechanism 6 is installed in the upper part of the tilling device 2. The rear two wheel support rod I, which can be adjusted up and down, is extended rearward.

A U-shaped holder 9 is attached to the center of the rear end rod 7a of the support rod 7 with a pin 8, and a purge device 3 is configured via the holder 9. Two rear wheels 10 are installed on both sides of the T.

In the puddling device 3, a horizontal rod 11 is installed horizontally through the rear part of the holder 9, and a pair of left and right support rods 12 are fixed to both sides of the rod 11.

A purge plate receiving rod 13 is pivotally connected to each front end of both support rods 12, and the receiving rod 13 is provided with a pressing rod 15 with a spring 14 in a downward position between each of the supporting rods 12. .

Reference numeral 16 refers to the entire puddling leveling plate, and the plate 16 includes a puddling leveling plate main body 17 (hereinafter also referred to as the main body 17) with a predetermined width provided in the center, and symmetrical parts on both sides of the main body 17. This is made up of the deployed extension plate 18.

19. 19 is a hinge that pivots the left extension plate 18 to the main body 1γ so that it can be folded back, and in the extended state shown in the second figure,
An extension stopper 20 protruding from the bottom of the rear outer end of the main body 17
The extension plate 18 receives the sound and becomes in the same plane.

In this case, cylindrical guides 21 and 21 are provided coaxially along the front edges of the main body 17 and the extension plate 18, and near the outer end of the guide 21 on the main body 17 side, forward and backward levers 22 are moved left and right. A U-shaped lever guide 23 for guiding is formed with a groove, and when the advancing/retracting lever 22 is slid outward against the tension spring 24, the extension plate 18 and the main body 17 are connected by an internal locking member 25, and the tension spring 24 connects the extension plate 18 and the main body 17. The forward/backward lever 22 is in a stable state fitted into the groove set roller 23a.

Here, at the opposing portions of both guides 21, 21, folding flanks 21a, 21a are provided so that both guides 21, 21 form a square-shaped groove.
The extension plate 18 is cut as an inclined surface, which allows the extension plate 18 to be folded back freely, but since it would be inconvenient if there is mud in this area, a semi-cylindrical cover 26 that integrally accompanies the advancement/retraction lever 22 is provided. The cover 26 supplements this and locks the extended state from above.

In this extended state, the gap between the extension plate 18 and the main body 17 is increased by the tensile action of the spring 28, which is stretched between the brackets 27 and 27 that protrude between the upper parts of the main body 17 and the extension plate 18. It's meant to be smaller.

To put the one-way valve in the extended state, use the lever 22 as shown in the third figure.
is guided to the inner groove ceratoro 23a, whereby the locker 25 and cover 26 return together to the main body 17 side, where the released state is locked by the tension spring 24.

In this way, the hinge 19 and the spring 2 are connected as shown by arrow R in FIG.
8, when the extension plate 18 is folded back toward the main body 17, the fourth
As shown in the figure, the extension plate 18 is received in an inclined position by a folding stopper 29 protruding from the main body 17, and the extension plate 18 is housed on the main body 11 by the tension of the spring 28.

This folded state may be a folded state, or the lockper 25 may be retreated so as to completely block the inside of the outer end of the guide 21 of the main body 17.

Further, the folding stopper 29 may be movably adjusted so that the folding angle can be changed.

This idea is as described above, and therefore, configuring the extension plate for extension can be done in an extremely simple manner without the need for tools or troublesome attachment/detachment work.Moreover, when it is not used for extension, it can be simply attached to the leveling plate itself. Because it is folded up and stored, no special equipment is required for handling, and since the existing cylindrical shape at the front end of the purge plate can be used as a guide, it has the advantage of being extremely simple and inexpensive. It is convenient to carry and allows for more efficient agricultural work.

In particular, the cylindrical guide 21, 21, lock cover 25, etc. for extension locking are arranged at the front end of the puddling leveling plate, and when the extension is extended, both guides 21, 2 are moved by the cylindrical cover 26.
1 is covered from the outside, so both guides 2 when extended.
It is difficult for dirt to enter between 1 and 21, ensuring efficient and accurate movement operation at all times, and since both guides are connected from the inside and outside, the extended state can be achieved stably and reliably, and the extension plate There are no problems with it rattling up and down.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is an external side view of a tilling device with a plowing device showing an example of this invention, and Fig. 2 is a plan view of the left half when the plowing device is locked for extension. FIG. 3 is a plan view of a main part showing a state in which the guide bar of the purge device is folded back, and FIG. 4 is a rear view showing a state in which the extension plate of the purge device is folded back. 2... Cultivating device, 3... Purging device, 1
6...Purchase leveling plate, 17...Purchase leveling plate main body, 18.Curved/extended plate, 19...Hinge, ...Lock cover. 21...Guide, 25...

Claims (1)

[Scope of utility model registration request] An extension plate 8 is provided on one side of the puddling leveling plate main body 17 with a predetermined width.
are arranged and attached so as to be rotatable to the left and right by a hinge 19, in which a cylindrical guide 21.
21, and the guide 2 of the purge leveling plate main body 17.
A groove-shaped lever in which a lock par 25 that slides forward and backward with respect to the guide 21 side of the extension plate 18 is fitted in the inside of the extension plate 18, and a reciprocating lever 22 protruding from the lock par 25 is opened in the guide 21 on the side of the purge leveling plate main body 17. The guide 23 can be slid forward and backward, and the forward and backward lever 22 is fixed with a cylindrical cover 26 that can move forward and backward and fit around the guides 21 and 21 by advancing in the extension direction. Features: Extension device for puddling leveling plate.