JPH04234902A - Truck for running on levee block - Google Patents

Abstract

PURPOSE:To provide a convenient truck for running on a levee block enabling stable walk of a farmer on a levee block and facilitating the management work of a farm. CONSTITUTION:Both side faces 1b of a levee block 1 are clamped from both sides with guide wheels 4 attached to both arms 8 and, at the same time, the lower face 1c of the levee block 1 is held with holding wheels 6 attached to both arms 8 to stabilize the carbody 2 in lateral direction. Since the carbody 2 moves on the upper face 1a of the levee block 1 with the front and rear wheels 2a, 2b in stabilized state, the farmer can stably walk while pushing the truck.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a cart for traveling on ridge blocks.

0002

[Prior Art] In recent years, due to the land readjustment in agricultural structure improvement projects, the land readjustment has been carried out in such a way that the length L as shown in Fig. 12 is used.
This is now done by burying ridge blocks 1 (1 m) each with an I-shaped cross section in a row. The field management work is carried out by using the upper surface 1a of this ridge block 1 as a conventional ridge path.

0003

[Problems to be Solved by the Invention] The width H of the upper surface 1a of the ridge block 1 is only 150 mm, and it is extremely difficult for even young people to walk on this upper surface 1a and perform agricultural work, and even more so for elderly people. It is an extremely difficult task.

[0004] This invention was made to solve these problems, and provides a convenient ridge block running system that allows farmers to walk stably on the top surface of ridge blocks and easily manage fields. The aim is to get a trolley.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the ridge block traveling vehicle bogie according to the present invention has a chassis that runs on the ridge block with front and rear wheels that are in contact with the upper surface of the ridge block. , at least two guide wheels are provided symmetrically between the front and rear wheels on both the left and right sides of the vehicle platform, and are in sliding contact or facing each other with a gap at at least two places in the front and rear of both sides of the ridge block; , at least one holding wheel located between each of the guide wheels and slidingly contacting the downward facing surface of the ridge block or facing the downward surface of the ridge block with a gap therebetween; The device is equipped with both arms that respectively hold the car and the holding car, and an arm opening/closing mechanism that opens the arms outward and separates the guide car and the holding car from the ridge block. It is.

[0006]

[Operation] In this invention, the ridge block is held from both sides by guide wheels and holding wheels provided on both arms, so the chassis is stabilized without falling to the left or right, and the top surface of the ridge block is held by the front and rear wheels. Since it runs, the chassis runs on ridge blocks. Therefore, by pushing the trolley that runs stably on the ridge blocks in this way, the farmer can walk stably on the ridge blocks.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 1 to 3. Figure 1 is a side view, Figure 2 is a view of Figure 1 viewed from the left and right,
FIG. 3 is a view of the main parts of FIG. 1 viewed diagonally from below, and the same parts as those of the conventional one are given the same reference numerals and explanations will be omitted.

In the figure, reference numeral 2 denotes a vehicle platform that also serves as a loading platform for carrying objects, and is designed to run on the upper surface 1a of the ridge block 1 with one front wheel 2a and two rear wheels 2b. 3 is a hand handle for pushing the chassis 2; 4 is a guide wheel symmetrically provided between the front and rear wheels 2a, 2b on both the left and right sides of the chassis 2; 2 at intervals by the holding member 5 so that they come into sliding contact at certain points.
It is held rotatably. Reference numeral 6 denotes a holding wheel provided between both guide wheels 4, and a downward facing surface 1c of the ridge block 1.
It is rotatably supported by a support member 7 so as to be in sliding contact with the support member 7. Arms 8 are rotatably attached to the right and left sides of the vehicle chassis 2 by pins 9, and support the holding member 5 at their tips 8a. Reference numeral 10 denotes a long hole provided in the support member 7, through which the support member 7 is attached to the arm 8 with a set screw 11, and the protruding length of the support member 7 can be adjusted. Reference numeral 12 denotes an arm opening/closing mechanism provided on the chassis 2, which includes an opening/closing lever 14 held by a guide 13 and a link whose one end 15a is connected to both arms 8 and whose other end 15b is connected to the opening/closing lever 14 via a connecting rod 16. It is composed of a mechanism 15.

Next, the operation will be explained. In the state shown in FIGS. 1 to 3, both arms 8 are closed, so each guide wheel 4
slidingly contacts both sides 1b of the ridge block 1.
At the same time, each holding wheel 6 slides on the downward facing surface 1c of the ridge block 1 and holds the ridge block 1 from below. In this way, since the ridge block 1 is held from both sides by the guide wheel 4 and the holding wheel 6, the chassis 2 is stabilized without falling to the left or right. When the vehicle platform 2 in this stable state is pushed by the hand handle 3, the vehicle platform 2 runs stably on the upper surface 1a of the ridge block 1 by the front and rear wheels 2a, 2b. Therefore, the farmer holds the hand handle 3 and pushes the ridge block 1.
You can walk stably on the upper surface 1a.

When removing the cart from the ridge block 1,
When the opening/closing lever 14 is raised as shown by the imaginary lines in FIGS. 1 and 2, the link mechanism 15 is actuated via the connecting rod 16, and both ends 15a are pushed outward, so that both arms 8 are moved to the left and right sides. The guide wheel 4 and the holding wheel 6 are removed from the ridge block 1. Therefore, when both arms 8 are opened outward as shown by the imaginary lines in FIG. 2, the front and rear wheels 2a and 2b make it easy to drive, so the vehicle can run on public roads in this state.

In the above embodiment, the side surface 1b of the ridge block 1
The guide wheel 4 and the holding wheel 6 were used to hold the downward facing surface 1c.As shown in FIGS. 4 and 5, the holding guide 17
may also be used. The holding guide 17 has two guide wheels 4
has a length along the side surface 1a of the ridge block 1 over the range in which the ridge block 1 slides, and has a substantially L-shaped cross-sectional shape that faces the side surface 1b and the downward surface 1c of the ridge block 1 with a gap therebetween. have. This configuration can reduce costs.

Further, in the above embodiment, a complicated link mechanism 15 was used to open and close both arms 8, but both arms 8 can be opened and closed by a single link 18 as shown in FIG. As shown in 7, two gears 19, 20 and 2
Both arms 8 can also be opened and closed by the double links 21 and 22. In this respect as well, cost reduction and weight reduction can be achieved.

Furthermore, in the above embodiments, both arms 8 are opened and closed by manually operating the opening/closing lever 14, but instead of this opening/closing lever 14, both arms 8 are operated by a hydraulic or electric drive source. It may be driven by.

[0014] In the above explanation, a hand-push type trolley was explained, but as shown in Figs. 8 to 11, the engine 23
The rear wheels 2b may be driven by the vehicle so that the vehicle can run on its own. Power is transmitted from the engine 23 to the worm reducer 25 via the clutch 24, and then to the rear wheel 2b via the chain 26.

[0015]

[Effects of the Invention] As described above, according to the present invention, there is provided a convenient trolley for running ridge blocks that allows farmers to walk stably on the upper surface of ridge blocks and easily perform field management work. There is an effect.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a diagram of FIG. 1 viewed from the right.

FIG. 3 is a view of the main part of FIG. 1 viewed diagonally from below.

FIG. 4 is a main part diagram showing another embodiment of the present invention.

FIG. 5 is a diagram of FIG. 4 viewed from the left.

FIG. 6 is a main part diagram showing still another embodiment of the present invention.

FIG. 7 is a main part diagram showing still another embodiment of the present invention.

FIG. 8 is a side view showing still another embodiment of the invention.

FIG. 9 is a top view of FIG. 8;

FIG. 10 is a partial cross-sectional view showing the main part of FIG. 8;

FIG. 11 is a sectional view of a main part of FIG. 10 viewed from the right.

FIG. 12 is a perspective view of a ridge block.

[Explanation of symbols]

1. Ridge block 1a　Top surface of ridge block 1b Side of ridge block 1c　Downward side of ridge block 2 Chassis 2a Front wheel 2b Rear wheel 4 Guide car 6 Holding car 8 Arm 12 Arm opening/closing mechanism 17 Holding guide

Claims (2)

[Claims] 1. A vehicle platform that runs on the ridge block with front and rear wheels that are in contact with the upper surface of the ridge block, and a ridge block that is symmetrically provided at a position between the front and rear wheels on both left and right sides of the vehicle platform. at least two guide wheels facing each other with a sliding contact or a gap in at least two places on the front and back of both sides of the ridge, and each guide wheel is positioned between each guide wheel and slides into contact with the downward facing surface of the ridge block or with a gap between the two guide wheels. at least one holding vehicle facing each other;
Both arms are provided on the left and right sides of the vehicle platform and hold the guide car and the holding car, respectively, and the arms are opened outward to move the guide car and the holding car to the ridge. A trolley for running ridge blocks, characterized by being equipped with an arm opening/closing mechanism that separates the arms from the blocks. 2. A cross section having a length along the side surface of the ridge block over a range in which the plurality of front and rear guide wheels slide, and facing at least a side surface and a downward surface of the ridge block with a gap therebetween. 2. The ridge block traveling cart according to claim 1, further comprising holding guides each having a shape on both left and right sides of the chassis, and each of said holding guides being supported by both arms.