JPH0327363Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a spring harrow with a crushing rotating member that further crushes crushed soil by spring blades.

(Prior art) Conventionally, this type of spring harrow with a crushing rotating member has an earth crushing body having a front crushing rotating member and a rear crushing rotating member connected to the rear end of the harrow body as an integral body. The member and the post-crushing rotating member are formed to move up and down integrally.

For this reason, when connecting to a tractor and towing it to crush the soil and level the planting bed, the crushing rotating member floats up from the ground surface on uneven parts of the field in the forward direction.
In addition, in the lateral uneven portion perpendicular to the forward direction, the end or the other end of one or both of the front crushing rotary member and the rear crushing rotary member floats up, making it impossible to achieve the intended purpose. There is.

(Problem to be solved by the invention) Due to the above-mentioned circumstances, even if the field has uneven parts in the forward direction, the rotation of the front crushing rotating member allows the rear crushing rotating member to always rotate on the ground surface. At the same time, even if there is a lateral uneven portion perpendicular to the forward direction, the end or the other end of one or both of the front crushing rotating member and the rear crushing rotating member can move along the lateral inclined surface without floating. The earth crushing body is made to tilt.

(Means for Solving the Problems) The present invention allows the rear crushing rotary member to constantly rotate with the rotation of the front crushing rotary member, and tilts the earth crushing body laterally to rotate the forward crushing rotary member and the rear crushing rotary member. The member is made to follow a horizontally inclined surface, and branches are set up at both ends of the horizontal rod at the rear end of the underframe of the harrow main body to which a number of spring blades are attached, and the front crushing rotation member and the rear crushing rotation member are connected to each other. Mounting pieces are provided protruding from both ends of the front transverse rod of the support frame of the earth crushing body equipped with the members, one end of which is pivotally connected to the support piece, and the other end of a connecting rod is pivotally connected to the mounting piece. A supporting rod with its lower end attached to the lateral middle part of the harrow body is provided, and the upper end of the harrow body-side holding rod has its lower end attached to the middle part of the horizontal bar at the rear end of the harrow body, and an earth crusher with its lower end attached to the earth crushing body. The upper end of the body side holding rod and the upper end of the support rod are pivotally connected by a pin, and the hanging part of the harrow body and the upper end of the support rod of the earth crushing body are connected by a connecting rod, and the front crushing rotation member and the rear crushing rotation member are connected. To provide a spring harrow with a crushing rotary member, in which the member can move upward to the left and upward to the right, and can move up and down.

(Function) The present invention is such that the rear crushing rotating member always rotates due to the rotation of the front crushing rotating member, and the other end of the connecting rod, one end of which is pivotally connected to the rear end of the harrow body, is connected to the front end of the earth crushing body. Since it is pivoted to the side, one connecting rod and the other connecting rod have different inclinations along the horizontal slope perpendicular to the forward direction, so that the slope is upward-left or upward-right. The reliability of the soil crushing action by the front crushing rotary member and the rear crushing rotary member can be improved.

(Example) Embodiments of the present invention will be described with reference to the drawings.

As shown in FIGS. 1 and 2, the spring harrow 1 with a crushing rotating member according to the present invention has an earth crushing body 3 connected to the rear end of the harrow body 2.

The harrow main body 2 includes horizontal rod portions 5, 5, and 5 of the underframe 4.
The upper ends of a plurality of spring blades 6, 6, which are formed by bending spring steel into an S-shape when viewed from the side, are attached to the upper ends of the spring blades 5, 5, respectively, and these spring blades 6, 6, . There is.

In addition, a left branch 7 and a right branch 8 are erected at the left and right ends of the horizontal rod portion 5 at the rear end of the underframe 4 of the harrow body 2, and the front end of the support frame 9 of the earth crushing body 3 is lateral. A left mounting piece 11 and a right mounting piece 12 are protruded from the left and right ends of the front surface of the rod part 10, and the other end of the left connecting rod 14, which has one end pivotally connected to the left support piece 7 via a pin 13, is attached to the ground. Pivotally attached to the left mounting piece 11 of the crushing body 3 via a pin 15,
One end of the right connecting rod 17 is pivotally connected to the right support piece 8 through a pin 16, and the other end of the right connecting rod 17 is pivotally connected to the right mounting piece 12 of the earth crushing body 3 through a pin 18.

Left vertical rod portion 19 and right vertical rod portion 20 of the earth crushing body 3
A branch part 21 is vertically provided near the front end of each of the parts, and shaft parts 22a at both ends of the front crushing rotating member 22 are rotatably attached to these branch parts 21, 21. A hanging chain 23 with an upper end attached near the rear end of each rod part 20 is provided, and one end is attached to the branch part 2.
The shaft portion 25a of the rear crushing rotary member 25 is rotatably attached to the other end of a mounting rod 24 which is pivotally connected to the support piece 21 concentrically with the shaft portion 22a of the front crushing rotary member 22 in FIG.

Furthermore, a shaft portion 2 protruding from one branch portion 21
Chain gear 26 fixed to 2a and one mounting rod 24
A chain 28 is hung around a chain gear 27 fixed to a shaft 25a that protrudes further, and the rear crushing rotating member 25 is configured to rotate as the front crushing rotating member 22 rotates.

Note that the front crushing rotating member 22 and the rear crushing rotating member 25 shown in this example have round bars or square bars arranged diagonally in the circumferential direction in a twisted manner to form a roll-shaped cage, but they may also be shaped like a toothed roll-shaped cage. Some did.

Furthermore, a support rod 3 whose lower end is attached to the vertical rod portions 29, 29 at the lateral intermediate portion of the earth crushing body 3, respectively.
0 and 30 are provided, and the horizontal rod portion 5 at the rear end of the harrow body 2
Harrow body side holding rod 3 with the lower end attached to the middle part of
A pin 33
The other end threaded portion 36a of the connecting rod 36 is pivotally connected to the supporting rod 35 and the end portion is rotatably attached to the supporting portion 35 whose lower portion is attached to the hanging portion 34 of the harrow main body 2.
Female threaded portion 37 of the mounting member 37 fixed to the upper end of 0
a, and a handle 38 is fixed to the protruding end.

In this case, the lower parts of the guide rods 39, 39 whose upper ends are fixed to the rear ends of the left vertical rod part 19 and the right vertical rod part 20, respectively, are connected to the insertion guide parts 40 provided on the mounting rods 24, 24.
The rear end of the mounting rod 24, which is inserted through the mounting rod 24 and whose intermediate portion is suspended by a hanging chain 23 attached to the left vertical rod portion 19 and the right vertical rod portion 20, is vertically movable within a required range.

In the figure, reference numeral 41 is a connecting portion to a tractor.

Since the present invention is constructed as described above, when the harrow main body 2 is connected to a tractor (not shown) via the connecting part 41 and the harrow body 2 is towed in the direction of the arrow a, the soil is crushed by the spring blades 6, 6, etc. immediately. It is crushed by the rotation of the pre-crushing rotating member 22, and further crushed by the rotation of the post-crushing rotating member 25, which is driven by the rotation of the pre-crushing rotating member 22, to achieve a fine powder. Can form a floor.

Moreover, as shown in FIG. 5, when reaching the uneven part in the forward direction on the field surface, the rear crushing rotary member 25 can freely move up and down independently of the front crushing rotary member 22, so that the convex part as shown in FIG. When the front crushing rotary member 22 is caught on a concave part, the rear crushing rotary member 25 is moved downward by the length of the hanging chain 23 and becomes familiar with the ground surface A, and when the front crushing rotary member 22 is caught on a concave part. After the hanging chain 23 is shortened, the crushing rotating member 25
It adapts to the ground surface by upward movement, and even if the surface of the field is uneven in the forward direction, the rear crushing rotating member 25
will never surface.

Furthermore, when reaching a horizontally uneven part perpendicular to the forward direction, the left connecting rod 14 and the right connecting rod 17 that connect the harrow main body 2 and the earth crushing body 3 change the inclination angle according to the unevenness and crush the earth crushing body. The left end or right end of 3 moves slightly upward or downward, and the earth crushing body 3 moves upward to the left as shown in Figure 6, or upward to the right as shown in Figure 7, and tilts laterally to the forward crushing rotating member. 2
2. The rear crushing rotating member 25 also rotates upward to the left or upward to the right, so that
The front crushing rotary member and the rear crushing rotary member operate against the surface of the field, which consists of a forward direction uneven portion and a lateral uneven portion perpendicular to the forward direction, by a compound movement of left upward movement, right upward movement, and vertical movement. The desired purpose can be achieved by fully adapting to the field surface.

(Effect of the invention) The present invention enables the rear crushing rotating member to move up and down freely separately from the front crushing rotating member, and also allows the front crushing rotating member and the rear crushing rotating member to operate upward to the left and upward to the right. Because of this, not only will it not float up even if the surface of the field has uneven parts in the forward direction or uneven parts in the lateral direction perpendicular to the forward direction, but it will also be possible to rotate both the front crushing rotary member and the rear crushing rotary member at any time. It is possible to dramatically improve the efficiency of forming planting beds, etc., and it can be used completely.

[Brief explanation of drawings]

Fig. 1 is a side view of the spring harrow with crushing rotation member of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is an enlarged slope view of the main part, Fig. 4 is an enlarged side view of the main part, and Fig. 5 6 is an explanatory diagram of the operating state in the uneven portion in the forward direction, Fig. 6 is an explanatory diagram of the operating state when the lateral uneven part perpendicular to the forward direction is upward to the left, and Fig. 7 is the same when the upward direction is to the left. FIG. 1...Spring harrow with crushing rotating member of the present invention, 2...Harrow body, 3...Earth crushing body, 4...
Underframe, 6... Spring blade, 7... Left support piece, 8...
... Right support piece, 9 ... Support frame, 11 ... Left mounting piece, 12
... Right mounting piece, 14 ... Left connecting rod, 17 ... Right connecting rod, 21 ... Branch part, 22 ... Front crushing rotation member, 23 ... Hanging chain, 24 ... Mounting rod, 25 ...
...Rear crushing rotating member, 30... Support rod, 31... Harrow body side holding rod, 32... Earth crushing body side holding rod,
34... Hanging part, 36... Connecting rod, 41... Connecting part to the tractor.

Claims (1)

[Scope of utility model registration request] Support pieces are erected at both ends of the rear end horizontal rod portion of the underframe of the harrow body to which a number of spring blades are attached, and both ends of the front horizontal rod portion of the support frame of the earth crushing body are equipped with a front crushing rotating member and a rear crushing rotating member. A mounting piece is provided protrudingly on the support piece, one end of a connecting rod is pivotally connected to the support piece, and the other end of the connecting rod is pivotally connected to the mounting piece. Using pins, connect the upper end of the harrow body-side holding rod whose lower end is attached to the middle part of the horizontal rod at the rear end of the main body, the upper end of the earth-crushing body-side holding rod whose lower end is attached to the earth-crushing body, and the upper end of the support rod. The crushing rotation is pivotally mounted, and the suspension part of the harrow body and the upper end of the support rod of the earth crushing body are connected by a connecting rod, and the front crushing rotating member and the rear crushing rotating member can operate upward to the left, upward to the right, and can move up and down. Spring harrow with parts.