JP2016124357A - Inverted type four-wheel base carriage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a basic shape of a four-wheel base carriage which simplifies the height adjustment of a car body, has many choices of adjustment height, and enables utilization of even two different heights with no need of adjustment upon setting once.SOLUTION: A carriage horizontal frame is shaped the same even when inverted upside in right and left symmetry, and four pairs of four-wheel carriage fixing seats where four wheels are mounted for the carriage horizontal frame are provided only above the top and bottom center of the horizontal frame to provide rotary shaft fixing holes on one or many stages at the same level of the four-wheel carriage fixing seat with necessary components and unnecessary components for different works to make the structure attachable and detachable. As a ground height adjustment method for a horizontal frame, four methods are provided: a method for replacement with mountable maximum-diameter wheels and wheels smaller than the same wheels in diameter, a method for changing positions of the rotary shaft fixing holes of wheels of the same diameters, a method for inverting upside a carriage frame, and a method for mixing the three methods.SELECTED DRAWING: Figure 2

Description

The present invention relates to a four-wheel carriage.

Conventionally, the common demands of workers for carts used mainly for various farming applications are that they can be used in an easy-to-use posture within the constraints.
The adjustment work and recombination work necessary to realize an easy posture should be as simple as possible without the need for tools, and if possible, the work described above is unnecessary.
It is not a dedicated trolley but a dual-purpose trolley that can be easily switched.

When performing a regular planting work of single row planting, various vegetables are summarized and described roughly,
There are a method of directly scouring 2-3 seeds, a method of directly seeding in a nursery and using 7-8 main seedlings, and a method of using a seedling box,
In terms of the method using a nursery box, the pitch width of the pupae is about 45 cm to 60 cm, the distance between the strains is 35 cm to 45 cm, and one standard size of the seedling box is about 30 cm × 60 cm × 3 cm. There are 128 shares and 72 shares.
A container dedicated to transporting seedling boxes containing the seedling boxes in multiple stages is temporarily placed at the center of the work in the field, and each planting planter holds a single seedling box and plantes the three seedlings at the same time while bending forward or rolling. Then, after planting one box, go to the temporary storage location of the seedling box transport container, and when the seedling in the seedling box transport container is empty, mount the seedling box transport container Replace with a special container for transporting seedling boxes.

As an aid to the work of 0003, a method of placing a seedling box on a low cart provided with four small wheels straddling a base and rolling it, pushing the cart and moving it while moving is also put into practical use. If you put an empty container (with thinned vegetables) instead of a box, it will be thinned.

A four-wheel-planting cart with a seat, with a front frame with a pair of front wheels and a rear frame with a pair of rear wheels, one horizontal beam on the right or left, or two horizontal on the right and left There are fixed planting carts connected by beams, and some have a shelf that can store multiple seedling boxes at the top of a pair of front wheels, but the number of seedling boxes is small, suitable for shallow farm fields, When the depth is deep, it is necessary to interrupt the work and manually carry and replenish the seedling box. This cart can also be used for thinning work, but is not suitable for carrying work.

In addition, there are some that can be used for fixed planting / thinning work and transport work, which can be adjusted in right and left wheel widths, front and rear wheel axle distances and seat heights, which are proposed in the actual No. 3172005 publication. Bolts are used, and time and dexterity are required for adjustment and recombination.

In addition, the approximate number of seedlings for 6 tons necessary for planting by reciprocating the vines up to the back of the field is 2 cm (2) when planting at 35 cm between the plants and 128 plants in one seedling box. 256 shares) will advance about 30 meters (256 shares x 0.35 meters ÷ 3cm)
If you work back and forth in a 30m deep field, you need 4 boxes,
If you work back and forth in a 60m deep field, you need 8 boxes,
When working back and forth in a 90m deep field, 12 boxes are needed,
When working back and forth in a farm field with a depth of 120 meters, 16 boxes are needed,
It is necessary to selectively introduce the capacity of the seedling box storage container according to the deepest field among the farms managed by the producer. growing,
In addition, if the seedling box storage container is enlarged and fixed to the carriage, it will be difficult to change the direction and change the direction of the paddy field in the back of the field and to carry it sideways from the storage of the equipment to the field.

In addition, the request regarding the height of the thinning cart is a position where the top surface of the crop and the main frame do not interfere with each other, and a position as low as possible is desired, but the crop in the field where the thinning work is delayed is tall and growing, Two types of thinning trolleys are desired for non-adjustment work. In thinning work, it is only necessary to mount a single empty container for seats and thinning vegetables.
The planting work has similar matters, and the seedling in the nursery box is small, but in the case of a large seedling, it is put in a plastic box or the like, and the work is performed in the same state as the thinning that has been delayed and increased.

Also, especially for large-scale producers, it is necessary to perform planting and harvesting operations on the same day. There are cases where two or three crops are produced in one season. A carriage that can be used as a transporting carriage is desired, and the height-related requirements for the fixed-planting carriage are the same as those for the thinning-out carriage and the hobo. Is a height where the top surface of the crop and the main frame do not interfere with each other, generally higher than the operator's knee and lower than the navel,
Harvesting / box cart
The required height condition is that it does not interfere with the top surface in the case of simultaneous harvesting, it does not interfere with the tip of the vegetable before harvesting in the case of selective harvesting, and the box of boxes is held at an angle. And you can place the packed box horizontally. If it is necessary to push vegetables strongly into a cardboard box such as a Chinese cabbage, it is not sufficient to place the box horizontally and support the vicinity of both ends of the box bottom instead of placing it diagonally. It is necessary to support the center position of the bottom. In addition, the current harvesting / boxing work is mostly done by placing the box directly on the field, but from the viewpoint of improving the overall efficiency of the work, the burden on the waist, the damage of the box becoming wet and dirty, and the overall efficiency of the work are improved. The spread of trolleys has begun.

Also, with regard to transportation work, the most labor-intensive work is to carry out the harvested product from the field to the outside of the field, such as side-by-side transportation to a transportation vehicle such as a packed cardboard box or a plastic container truck. However, there are producers who use dedicated transport carts or roller conveyors, but many producers still carry boxes on foot by hand.

JP2013-143828A Noto 3172005 publication Japanese Patent Application No. 2014-52531 JP 2014-015109 A

Therefore, the present invention is a four-wheel carriage that can easily be adjusted in height, has many options for adjustment height, and can be used at two different heights without adjustment once set. It is an object to provide a basic shape.

The invention made to solve the above problems is
The vehicle body excluding the four wheels and the four pairs of wheel fixing seats of the four-wheel carriage has a front / rear symmetry, a left / right symmetry, or a front / rear left / right symmetry shape, and the same shape even if the top and bottom are reversed, Or it turned into the same shape when turning the top and bottom and turning 180 degrees.

Further, four pairs of wheel fixing seats provided on the vehicle body are provided only above the vertical center of the vehicle body, and rotation shaft fixing holes are provided in one or more stages at the same height of the four pairs of wheel fixing seats.
In addition, it does not exclude providing the rotating shaft fixing hole provided in the wheel fixing seat at the center position above and below the vehicle body.

  In addition, there are necessary parts and unnecessary parts for use in different operations, and these accessory parts can be easily attached to or detached from the top surface of the vehicle body and the top surface (front and back surfaces) of the upside down.

  Also, as a method of adjusting the ground height of the vehicle body, a method of exchanging with a wheel having the maximum diameter that can be attached and a wheel having a smaller diameter than that of the same wheel, and changing the mounting position of the rotation shaft fixing hole of the wheel fixing seat for the same diameter wheel We propose four methods: a method, a method of turning the carriage upside down, and a method of combining the above three methods.

The upside down four-wheel base cart of the present invention is
As a method for adjusting the ground height of the body of the cart, a method of replacing the wheel with the maximum diameter that can be mounted and a wheel with a smaller diameter than the wheel, and changing the mounting position of the rotation shaft fixing hole of the wheel fixing seat for the wheel with the same diameter There are four methods: a method that uses the above method, a method that reverses the trolley frame, and a method that mixes the above three methods. By attaching and detaching accessories suitable for the application, a four-wheel base vehicle that can be used for multiple purposes is provided. it can.

Schematic plan view of a top-and-bottom four-wheel-base carriage showing an embodiment of the present invention FIG. 2 is a schematic side view of FIG. 1, in which the front and rear wheels are omitted and a part of the front wheel fixing seat is notched, and is located on the upper surface of the vehicle body. FIG. 3 is a schematic side view in which FIG. 2 is turned upside down, in which the wheel fixing seat is located on the lower surface of the vehicle body. FIG. 2 is an enlarged view of the arrow AA in FIG. 1, and is a schematic partial side view in which wheels are omitted. FIG. 6 is a comparative reference diagram for comparing changes in the height of a vehicle body before and after reversal of a top-and-bottom reversing type four-wheel base carriage, (W) before reversal and (Z) after reversal. The schematic side view of the trolley | bogie which carried out rearrangement adjustment to the state which changed the wheel fixing position of FIG. 2, or changed the diameter of a wheel, or the vehicle body upper surface did not receive wheel interference by mixing of said 2 methods. FIG. 4 is a schematic plan view showing four examples of a part of an embodiment of the vehicle body other than FIG. 1 of the upside down type four-wheel base carriage.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.

[Embodiment]
<Upside-down four-wheel base truck>
1 and 2, the upside-down inverted four-wheel base carriage 1 has four pairs of wheel fixing seats 4 provided on one upper surface of the upper and lower surfaces of the vehicle body 2.
The wheel fixing seat 4 incorporates four wheels 3 having the same diameter,
The upside down four-wheel base cart 1 shown in FIG. 2 can provide a cart with different heights without adjustment by turning upside down as shown in FIG. 3, such as a fixed planting cart, a thinning cart, a boxing cart, a transport cart, etc. Any kind of trolley can be used.

(Body and horizontal frame)
The vehicle body 2 is composed of a horizontal frame 23 and four pairs of wheel fixing seats 4.
The horizontal frame 23 is obtained by omitting the four pairs of wheel fixing seats 4 from the vehicle body 2, and includes a main frame 21 and an auxiliary frame 22.
A loading space is formed by the main frame alone or by the horizontal frame 23 in which the main frame 21 and the auxiliary frame 22 are combined.

(Wheel fixing seat and fixing hole)
As shown in FIG.
One wheel fixing seat 41 of the pair of wheel fixing seats is provided on the main frame 21,
The other wheel fixing seat 42 of the pair of wheel fixing seats is provided on the auxiliary frame 22,
The wheel fixing seat 41 is fixed by using bolt holes 102 for fixing the fixing seat to the main frame. The wheel fixing seat 41 is provided with the wheel fixing holes 101 in three stages at equal pitches,
The wheel fixing seat 42 is provided with the fixing seat on the auxiliary frame,
The wheel fixing seat 42 has a structure in which wheel fixing holes (long holes) 103 are provided in three stages at an equal pitch.
In addition, the installation number and the installation pitch of the wheel fixing holes 101 and 103 are determined by the specification that is optimal for the purpose of use, and are not limited to the installation number 3, equal pitch as in this example.
Further, it does not exclude that the rotation shaft fixing hole 101 provided in the wheel fixing seat 4 is provided at the center position in the vertical direction of the vehicle body.

(Wheel)
The wheel 3 is a method of selecting a different radius 33 (or diameter) and changing the height of the rotation axis 31 of the wheel, or a rotation axis fixing hole provided in the rotation axis 31 of the wheel and the wheel fixing seat 4. The height of the vehicle body 2 is selected and determined by the changing method of the 32 engagement positions.
In the embodiment, a method of supporting the rotating shaft 31 of the wheel at both ends has been proposed. However, the supporting method of the rotating shaft 31 may be a cantilever support that supports one end of the rotating shaft.

(Change in height when reversed)
In FIG. 5 (W) and FIG. 5 (Z), when the figure (W) is the normal position of the vehicle body, the figure (Z) shows a state in which the normal position of the vehicle body is reversed.
In the figure (W), a wheel 3 having a radius of 33 (same as H1) is provided on a rotation axis 31 of a wheel indicating a mounting position in a wheel fixing hole 32 provided in a wheel fixing seat 4,
In the above state, the ground height H2 to the lower surface of the main frame 21, the ground height H3 to the upper surface of the main frame 21, the distance H6 between the wheel rotation axis 31 and the upper surface of the main frame 21, and the upper and lower of the main frame components Between the height (thickness) H7 in the direction,
The formula of H2 = H1-H6-H7 is obtained,
In addition, in the state where the vehicle body 2 in FIG.
Ground height H4 to the bottom surface after the main frame 21 is inverted,
Between the ground height H5 up to the upper surface after the main frame 21 is inverted,
H4 = H1 + H6
H5 = H1 + H6 + H7
To obtain the formula

(Thinning work)
When the lower surface height H2 of the main frame 21 of the carriage 2 is 170 mm, the vertical height (thickness) H7 of the main frame constituent material is 40 mm, and 18-inch wheels (diameter about 450 mm, radius 225 mm) are mounted, H6 = It becomes 15 mm, and H4 = 240 mm can be calculated. When the thinned vegetables are small and further increased to 7 cm, they can be reversed and used as a thinning cart.
As for the arrangement of the accessory 12, when a seat 123 is provided in the space 52 or 54 on the main frame 21, a small box is placed in the space 54 or 52, thinned vegetables are put in the small box, and the small box is full. Move to a large box placed in the space 55 or 51 and thin out the left and right tiles that are the same as the top of the space 53.
In addition, the upper surface height H5 when reversed is 280 mm, which is a little lower in practice, but can be sufficiently used for transportation work.

(Planting work)
When the lower surface height H2 of the main frame 21 of the carriage 2 is 170 mm, the vertical height (thickness) H7 of the main frame constituent material is 40 mm, and a wheel of 24 inches (diameter of about 600 mm, radius 300 mm) is mounted, H6 = 90mm, H4 = 390mm, and the top surface height H5 when reversed is 430mm. It can be used for transportation work in practice. It is a producer who produces 2 or 3 crops in a season. Ideal for producers with overlapping work.
The accessory 12 is arranged in such a manner that a seat 123 is provided in a space 52 or 54 on the main frame 21, a seedling box oblique mounting table 122 is placed in the space 54 or 52, a seedling box storage container is placed in the spaces 51 and 55, and the space 53 is placed. Set up the left and right side of the plant.

(Boxing work)
Under the same working conditions as the above “planting work”, at the time of simultaneous harvesting, the bottom surface height H2 of the main frame 21 of the carriage 2 can be set to 170 mm and can be put into the field after harvesting.
When the harvesting is uneven and the selective harvesting is done, the carriage is inverted, and if H4 = 390mm does not interfere strongly with the top of the growing vegetable, it enters the field and holds the box horizontally in the hollow position of H5 = 430mm. It can be used for both box planting and unloading.

(Transportation work)
FIG. 6 shows an example optimal for harvesting (transporting) work. The horizontal frame 23 is rearranged to a height that does not interfere with the crop 63 in a suitable harvest period and a height at which the wheels do not interfere with the load. The entire surface 23 can be used as a loading platform, and a plate is placed in the space 5 on the main frame as an accessory 12 as necessary.

As described above, a combination suitable for a production area, a production system, or a crop is selected from many options.
In addition, although this invention mainly described agricultural work and described the Example for single row planting, it is not limited to the use in a single row planting field, and is not limited to the use in agriculture.

  As described above, the upside down type four-wheel base cart of the present invention has many options for height adjustment, and can be suitably used as two carts of different heights without adjustment.

1 Carousel 21 Main frame 22 Auxiliary frame 23 Horizontal frame 3 Wheel 31 Wheel rotation axis 32 Wheel rotation shaft fixing hole 33 Wheel radius 4 Pair of wheel fixing seats 41 Wheel on the main frame side Fixed seat 42 Wheel fixing seat on the auxiliary frame side 5 Loading space 51 On the left side of the carriage 1 in FIG. 1, the space between the pair of wheels 52 On the right side of the space 51 in the carriage 1 in FIG. Space 53 to be provided In the center of the carriage 1 in FIG. 1, a space in front of the operator 54, a space to provide an oblique mounting stand on the left side of the space 55 of the carriage 1 in FIG. 1 55, a pair of right side of the carriage 1 in FIG. Space between the wheels 6 Field 61 Top surface of the ridge 62 Groove groove 63 Growing vegetables 64 Thinned vegetables or planted seedlings 10 holes 101 Rotating shaft fixing hole provided on the wheel fixing seat on the main frame side 102 Wheel fixing on the main frame side seat Rotation shaft fixing hole provided in the wheel fixing seat of the pair of bolt fixing holes 103 auxiliary frame side is fixed to the main frame (long hole of one opening)
12 Accessories 121 Seedling box storage container 122 Seedling box slant stand 123 Seat (seat on which the operator sits)
H Height in vertical direction H1 Height to wheel center (same as wheel radius)
H2 Height to the lower surface of the main frame when the wheel fixing seat is on the upper surface of the main frame. H3 Height to the upper surface of the main frame when the wheel fixing seat is on the upper surface of the vehicle body. Height to the lower surface of the main frame in some cases H5 Height to the upper surface of the main frame when the vehicle body is reversed and the wheel fixing seat is on the lower surface of the vehicle body H6 Between the wheel rotation axis 31 provided on the wheel fixing seat and the upper surface of the main frame Distance H7 Height (thickness) of the body component

Claims (1)

In a four-wheel carriage with four wheels,
The above-mentioned four-wheel carriage has four wheels, a vehicle body, and accessories as components,
The vehicle body is composed of a horizontal frame and four pairs of wheel fixing seats,
The horizontal frame is composed of a main frame and an auxiliary frame,
The main frame includes one of the four pairs of wheel fixing seats for fixing the wheel,
The auxiliary frame includes the other of the four pairs of wheel fixing seats for fixing the wheel,
The auxiliary frame is configured with a height equal to or lower than the upper surface height of the main frame,
The horizontal frame or the upper surface of the main frame forms a loading space,
The accessory is provided with attachment / detachment means in the cargo bed space,
The four pairs of wheel fixing seats are provided on the upper surface which is one side of the upper surface and the lower surface of the horizontal frame,
The four pairs of wheel fixing seats are provided with rotating shaft fixing holes for fixing both ends of the rotating shaft of the wheel,
The rotating shaft fixing hole is provided in one or more stages at the same height at a position higher than the intermediate position between the upper surface and the lower surface of the vehicle body,
The horizontal frame, excluding the four wheels, the four pairs of wheel fixing seats and the accessories from the vehicle body, has a front-rear symmetry, a left-right symmetry, or a front-rear left-right symmetry, and the top and bottom are reversed. A top-and-bottom reversible four-wheel base trolley equipped with a vehicle body having the same shape or the same shape when turning upside down and turning 180 degrees with the same shape.

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