KR102139828B1 - Working chair for farmer - Google Patents

Abstract

Agricultural work chairs including wheels and seats, the main frame extending in the longitudinal direction and having a sheet screw hole penetrating up and down, a first nut and a second nut provided in up and down corresponding to the seat screw holes of the main frame, A first seat fixing housing accommodating a portion of the 1 nut and a second nut and provided on one side of the main frame, and a second seat fixing housing accommodating the rest of the first nut and the second nut and provided on the other side of the main frame Including, the first seat fixing housing and the second seat fixing housing are coupled to each other to provide a receiving portion for receiving the first nut and the second nut above and below the main frame, the first nut and the second within the receiving portion The rotation of the nut is limited, the screw shaft of the seat is coupled to the main frame via the first nut and the second nut, and the wheel is mounted relative to the main frame.

Description

Farming Work Chair {WORKING CHAIR FOR FARMER}

The present invention relates to an agricultural work chair, and more particularly, to an agricultural work chair excellent in durability and easy to manufacture and operate.

Public utility model No. 20-2012-007600 relates to a "farming work chair," which discloses a work chair that can adjust the height of the top and bottom of the backrest, and can be moved to facilitate the cultivation and management of crops. The farming work chair is provided with a wheel, a seat and a backrest fastened to a spiral shaft around the frame, and is provided by welding a shaft tube to accommodate the spiral shaft to the frame by welding.

However, in order to perform welding, the process of welding the shaft tube to the frame in a state in which the sheets are combined has to be carried out, so the work is cumbersome, and the low-skilled worker has disadvantages in that it is difficult to manufacture or repair. This content can be applied to the work chair described in Patent Publication No. 10-2009-099431.

The present invention provides an agricultural work chair capable of forming a sturdy structure using an existing nut without using welding.

In particular, while the existing nut has a low depth of thread and cannot provide sufficient coupling force and support force, when two or more nuts are used, the threads may not match because the threads do not match, and the present invention may occur. The use of two or more nuts makes it easy to adjust the phase between the nuts, and provides an agricultural work chair that can be easily assembled, disassembled, and repaired by the general public.

According to an exemplary embodiment of the present invention, the agricultural work chair including the wheel and the seat extends in the longitudinal direction, and the main frame is formed with a sheet screw hole penetrating up and down, and vertically corresponding to the seat screw hole of the main frame. A first seat fixing housing provided on one side of the main frame accommodating a portion of the provided first nut and the second nut, the first nut and the second nut, and the remaining portion of the first nut and the second nut to accommodate the main It includes a second seat fixed housing provided on the other side of the frame, the first seat fixed housing and the second seat fixed housing are coupled to each other to provide a receiving portion for receiving the first nut and the second nut above and below the main frame, , The rotation of the first nut and the second nut in the receiving portion is limited, the screw shaft of the seat is coupled to the main frame via the first nut and the second nut, and the wheel is mounted relative to the main frame.

In this embodiment, "nut" is a concept that includes a hexagon nut that is readily available on the market, and is not necessarily a popular nut, but can be understood as a concept that is commercially available and also includes a nut without the need for special ordering.

Conventionally, welding was performed by using a long shaft made of special paper for fixing the screw shaft of the sheet, or by fixing the nut to the screw shaft to match the phase of the screw. However, in the present embodiment, simply inserting nuts into the first seat fixing housing and the second seat fixing housing, and combining both seat fixing housings simply secures the screw shaft of the seat without special fabrication of the paper tube or dangerous welding work. It can provide a screw structure that can be made.

The first seat fixing housing and the second seat fixing housing are coupled on the left and right sides of the main frame, and may include a first receiving groove and a second receiving groove receiving the first nut and the second nut, respectively. The first accommodating groove and the second accommodating groove may be provided in a shape corresponding to the half of the hexagonal column to limit the rotation of the first nut and the second nut, or may be provided in a shape capable of restraining rotation of other nuts.

The first seat fixing housing and the second seat fixing housing may be coupled above and below the main frame. In this case, in order to receive the first nut and the second nut, the first seat fixing housing and the second seat fixing housing may each include an upper receiving groove and a lower receiving groove for accommodating the nut one by one, and the upper receiving groove And the lower receiving groove may provide a hexagonal columnar groove to limit rotation of the first nut and the second nut.

The seat and the wheel are combined around the main frame, and a wheel coupling portion may be used to mount the wheel to the main frame. The wheel coupling portion may include an abutment plate in close contact with the main frame and an axle fixing portion extending downward from both ends of the abutment plate to pass through the axle, and an axle hub according to the wheel axle used may be formed in the axle fixing portion. In addition, the distance between the shaft fixing parts and the width of the shaft hub may be variously changed according to the conditions used. In particular, the user can easily replace the wheel according to the intended use, use environment, and the like.

The main frame includes a plurality of seat screw holes, and it is possible to change the position of the seat relative to the longitudinal direction of the main frame by changing the positions of the first seat fixing housing, the second seat fixing housing, the first nut and the second nut. have. In addition, when using a long main frame, two or more seats may be mounted on one main frame.

It may further include a backrest base fixed to one side of the main frame, a backrest frame coupled to the backrest base, and a backrest mounted to the backrest frame, and the position and size of the backrest can be freely adjusted, and replacement is very easy.

The main frame may be provided in the form of a hollow metal bar, and may further include a parasol intermediate support extending from the top to the rear of the back frame and a parasol lower support slidably withdrawn or inserted from the inside of the main frame. The lower support of the parasol supports the lower part of the parasol, and the intermediate support of the parasol can be used for fixing the umbrella stand of the parasol, and the lower support of the parasol slides from the main frame to adjust the front and rear angle of the parasol.

The parasol middle support can be mounted to be pivoted and fixed in the horizontal direction with respect to the backrest frame, and the function of adjusting the left and right angles of the parasol can also be added by adjusting the parasol middle support from side to side.

The agricultural work chair of the present invention does not use welding, and can use a conventional nut to form a sturdy structure.

In particular, while the existing nut has a low depth of thread and cannot provide sufficient coupling force and support force, when two or more nuts are used, the threads may not match because the threads do not match, and the present invention may occur. The use of two or more nuts makes it easy to adjust the phase between the nuts, and provides an agricultural work chair that can be easily assembled, disassembled, and repaired by the general public.

In addition, since the farming work chair of the present invention can easily assemble a seat, a wheel, a backrest, etc. around the main frame, the separation and replacement of these are very easy.

In addition, the agricultural work chair of the present invention may include a plurality of seat screw holes, and since it is easy to move and install the seat according to the seat screw holes, the operator seats at a convenient location according to the purpose of the work, the size of the body, etc. And peripheral tools.

1 is a perspective view of an agricultural work chair according to an embodiment of the present invention.
Figure 2 is an exploded perspective view of the agricultural work chair of Figure 1;
3 is an enlarged perspective view for explaining the bonding structure of the seat of the agricultural work chair of FIG. 1;
4 is a cross-sectional view for comparing the bonding structure of the sheet of FIG. 3 with the prior art.
5 is a perspective view for explaining a work chair for agricultural use with a backrest according to an embodiment of the present invention.
Figure 6 is a perspective view for explaining the process of assembling the backrest in the agricultural work chair of Figure 5;
7 is a perspective view for explaining an agricultural work chair capable of mounting a parasol according to an embodiment of the present invention.
8 is a side view for explaining the process of adjusting the angle of the parasol in the agricultural work chair of FIG.
9 is a perspective view for explaining an agricultural work chair that can adjust the left and right angle of the parasol according to an embodiment of the present invention.
10 to 12 are diagrams for explaining various embodiments of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited or limited by the embodiments. For reference, in the present description, the same numbers refer to substantially the same elements, and the contents described in other drawings may be cited and explained under these rules, and repeated contents that are determined or apparent to those skilled in the art may be omitted.

1 is a perspective view of an agricultural work chair according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the agricultural work chair of FIG. 1. Figure 3 is an enlarged perspective view for explaining the bonding structure of the sheet of the work chair of Figure 1, Figure 4 is a cross-sectional view for comparing the bonding structure of the sheet of Figure 3 with the prior art.

1 to 4, the working chair 100 according to the present embodiment is a main frame 110, wheels 130, seats 120, and seats 120 that are mounted before and after the main frame 110. First sheet for mounting the first nut 150 and the second nut 152 for fixing the screw shaft 125 of the first nut 150 and the second nut 152 to the main frame 110 It includes a fixed housing 160 and a second seat fixed housing 170.

The main frame 110 is provided in a shape extending in the longitudinal direction, in this embodiment may be provided by cutting a metal bar made of a material such as iron or aluminum. The main frame 110 may be formed with a plurality of seat screw holes 112 penetrating up and down so that the screw shaft 125 of the seat 120 can pass. In this embodiment, a plurality of seat screw holes 112 are formed, but in another embodiment, only one may be formed, and in some cases, a long hole may be formed.

The first nut 150 and the second nut 152 may be provided up and down in correspondence with the seat screw hole 112 of the main frame 110. In addition, the first seat fixing housing 160 and the second seat fixing housing 170 may be provided to position the first nut 150 and the second nut 152 in place on the main frame 110. .

The first seat fixing housing 160 and the second seat fixing housing 170 may be coupled to each other using screws or the like, and may be coupled to each other to provide a structure capable of accommodating the outer surface of the main frame 110. . The first seat fixing housing 160 and the second seat fixing housing 170 may be coupled to each other to form a receiving portion capable of accommodating the first nut 150 and the second nut 152.

In this embodiment, the first seat fixing housing 160 and the second seat fixing housing 170 are coupled from the left and right sides of the main frame 110. The first seat fixing housing 160 forms a first receiving groove 162 capable of accommodating half of the first nut 150 and the second nut 152 disposed up and down, and the second seat fixing housing ( 170 forms a second receiving groove 172 capable of receiving the other half of the same first nut 150 and the second nut 152.

The first receiving groove 162 and the second receiving groove 172 are provided in a shape corresponding to the half of the hexagonal column to limit the rotation of the first nut 150 and the second nut 152, or the rotation of other nuts It may be provided in a shape that can be constrained.

Referring to (a) of FIG. 4, conventionally, a paper tube 10 extended up and down for a stable connection may be used. However, it is difficult to manufacture because the long and vertical shaft 10 must be formed to be about 50 mm or more, and in particular, it should be manufactured at a significantly higher cost than purchasing two ready-made nuts.

In addition, in order to fix the shaft tube 10, a corresponding structure must be welded up and down on a metal frame, and a defect may occur in the process of welding, and the defect that the appearance is not beautiful as a trace of welding may be solved. none.

Referring to FIG. 4B, in the conventional case, a ready-made nut 20 can be used. However, when the nut 20 is used, the nut 20 must be fixed by welding, and the disadvantages of the above-mentioned welding, that is, defect occurrence and damage to the appearance cannot be solved.

In particular, when using two nuts 20, there is a disadvantage that the screw shaft of the seat cannot be engaged even if the nuts 20 are slightly twisted. Therefore, in this case, there is a hassle of pre-combining the nut 20 to the screw shaft of the seat, adjusting the gap between the nuts 20 in the state in which the nut 20 is coupled, and welding.

However, referring to (c) of FIG. 4, the first nut 150 and the second nut 152 are inserted into any one of the first seat fixing housing 160 and the second seat fixing housing 170, Nuts can be fixed simply by fixing the two seat fixing housings 160 and 170 with screws and nuts at a position adjacent to the intended seat screw hole 112 of the main frame 110. In addition, there is no damage to the exterior or an unsightly appearance, such as a trace of welding.

In addition, it is easy to separate even if damage occurs to the nut or seat fixing housing, so repairing is possible by simply disassembling and replacing the corresponding parts. On the other hand, in the prior art mentioned above, if the nut or the welding is damaged, partial repair is impossible, and there is a hassle of buying a new work chair or replacing the entire frame.

For reference, the first nut 150 and the second nut 152 in the receiving portion may be provided to allow a slight flow up and down, and the seats 120 may be adjusted by fine adjustment of the nuts 150 and 152. ) Of the screw shaft 125 may be easily coupled with the first nut 150, the seat screw hole 112 and the second nut 152.

1 and 2, when a plurality of seat screw holes 112 are formed in the main frame 110, the user separates the screw shaft 125 of the seat 120 from the main frame 110. Thereafter, the seat fixing housings 160 and 170 may be moved to a desired position of the seat screw hole 112 to change the position of the seat 120 in the front-rear direction.

As described above, in the present invention, "nut" is a concept that includes a hexagon nut which is readily available on the market, and is not necessarily a popular nut, but is understood to be a concept that is commercially available and also includes a nut without the need for special ordering. Can be.

In this embodiment, the seat 120 and the wheel 130 are combined around the main frame 110, and the wheel coupling portion 140 may be used to mount the wheel 130 to the main frame 110.

The wheel coupling portion 140 may include a contact plate 142 in close contact with the main frame 110 and shaft fixing portions 144 and 146 extending downward from both ends of the contact plate 142 through which the wheel shaft passes. have. Shaft hubs 148 for passing and supporting the wheel axle used may be formed in the shaft fixing parts 144 and 146.

The contact plate 142 may be provided in a general flat plate shape, but in some cases, may be provided in a shape that partially accommodates the main frame 110. In addition, the spacing between the shaft fixing parts 144 and 146 or the width of the shaft hub 148 may be variously changed according to the conditions used.

5 is a perspective view for explaining a farm work chair with a backrest applied according to an embodiment of the present invention, and FIG. 6 is a perspective view for explaining a process for assembling the backrest in the farm work work chair of FIG. 5.

5 and 6, the working chair according to the present embodiment is the main frame 110, seat 120, wheel 130, wheel engaging portion 140, the first seat fixing housing 160, It includes a second seat fixing housing 170, the description of this may refer to the description of the previous embodiment.

The work chair for farming according to the present embodiment is a backrest base 182 fixed to one side of the main frame 110, a backrest frame 186 coupled to the backrest base 182, and a backrest 180 mounted on the backrest frame 186 ).

The backrest base 182 is mounted on the rear end of the main frame 110, and may be fixed through a screw fastening or the like while being partially inserted into the main frame 110. The backrest base 182 may be provided with a synthetic resin material, and may provide a frame support groove 184 for accommodating the lower end of the backrest frame 186. The frame support groove 184 may be formed in a square or circular shape depending on the shape of the back frame 186.

Since the backrest 180 can be easily assembled and provided, it is easy to separate and replace, and the position and size of the backrest can be freely adjusted.

7 is a perspective view for explaining a farming work chair capable of mounting a parasol according to an embodiment of the present invention, and FIG. 8 is a side view for explaining a process of adjusting the parasol angle in the farming work chair of FIG. 7.

7 and 8, the working chair according to the present embodiment is the main frame 110, the seat 120, the wheel 130, the wheel engaging portion 140, the first seat fixing housing 160, It includes a second seat fixing housing 170, the backrest base 182, the backrest frame 186, the backrest 180, the description of this may refer to the description of the previous embodiment.

The farm work chair according to this embodiment includes a parasol intermediate support 196 extending from the upper portion of the back frame 186 and a parasol lower support 192 slidably withdrawn or inserted from the inside of the main frame 110. It may further include.

The parasol lower support 192 includes a parasol support groove 194 capable of supporting the lower end of the parasol 30 at the end, and the parasol intermediate support 196 has its end formed in a ring shape 198 to form a parasol. Can be used for fixing the umbrella stand.

In this embodiment, the parasol intermediate support 196 maintains a fixed length, and the parasol lower support 192 slides back and forth relative to the main frame 110 to adjust the front and rear angles of the parasol 30. To this end, the main frame 110 may be provided in the form of a hollow metal bar.

9 is a perspective view for explaining an agricultural work chair that can adjust the left and right angle of the parasol according to an embodiment of the present invention.

Referring to FIG. 9, on the back frame 186, the parasol intermediate support 196 can be rotated to the left and right, and the parasol intermediate support 196 is left and right while the front and rear lengths of the parasol lower support 192 are fixed. By adjusting, the left and right angles of the parasol 30 can be additionally adjusted according to the direction of sunlight.

In order to adjust and fix the left and right angles of the parasol intermediate support 196, the parasol intermediate support 196 can be fixed while loosening and tightening the screws using a knob, and the angle can be adjusted using a latch, etc. You may. In this regard, reference can be made to a fixable technique.

10 to 12 are diagrams for explaining various embodiments of the present invention.

10, the wheel coupling portion 140 coupled to the main frame 110 may include a contact plate 142 and the shaft fixing portions 144, 146, even if the main frame 110 is the same The size and width of the contact plate 142, the height of the shaft fixing parts 144 and 146, the spacing between the shaft fixing parts 144 and 146, and the width of the shaft hub 148 may be variously adjusted.

For example, if stable support is desired or a high load capacity is required, the distance between the shaft fixing parts 144' and 146' can be extended, and the width of the shaft hub 148' can be further extended. Of course, in this case, the wheel 130' may also use a larger and wider wheel (b).

In addition to this, it is also possible to replace the combination of the wheel engaging portion and the wheel in order to change the tread of the wheel 130" according to the use conditions (c).

Referring to FIG. 11, assuming that the main frame 110 is sufficiently long, two or more seats 120 may be mounted on one main frame 110. In this case, it is possible for two people to work simultaneously, and the user can freely add and separate the seat by additionally combining the seat fixing housing and the nut.

In addition, as shown, it is also possible to expand the function as a crop harvester by adding a structure capable of carrying a basket or a bag.

Referring to FIG. 12, the first seat fixing housing 260 and the second seat fixing housing 270 may be coupled above and below the main frame 110. In this case, the first seat fixing housing 260 accommodates the entire first nut 150 and may include an upper receiving groove 262 corresponding to the outer surface of the nut for receiving the first nut 150 on the bottom surface. The second seat fixing housing 270 accommodates the entire second nut 152 on the opposite side of the first seat fixing housing 260 and corresponds to the nut outer surface for receiving the second nut 152 on the upper surface. The lower receiving groove 272 may be included.

As illustrated, the upper receiving groove 262 and the lower receiving groove 272 are provided as hexagonal columnar grooves to limit the rotation of the nut, and the upper receiving groove 262 is also substantially lower than the lower receiving groove 272. It can be provided in the same shape.

As described above, although described with reference to preferred embodiments of the present invention, those skilled in the art variously modify and change the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. You can understand that you can.

100: Farm work chair 110: Main frame
120: seat 130: wheel
140: wheel engaging portion 150: first nut
152: second nut 160: first seat fixing housing
170: second seat fixing housing 180: backrest

Claims (9)

In the agricultural work chair comprising a wheel and a seat,
A main frame extending in the longitudinal direction and having a sheet screw hole penetrating up and down;
A first nut and a second nut provided up and down corresponding to the seat screw hole of the main frame;
A first seat fixing housing accommodating a portion of the first nut and the second nut and provided on one side of the main frame; And
It includes; a second seat fixing housing provided on the other side of the main frame to accommodate the remaining portion of the first nut and the second nut;
The first seat fixing housing and the second seat fixing housing are coupled to each other to provide an accommodating portion accommodating the first nut and the second nut above and below the main frame, and the first nut within the accommodating portion. And rotation of the second nut is restricted,
The screw shaft of the seat is coupled to the main frame via the first nut and the second nut, the wheel is a farm work chair, characterized in that mounted to the main frame. According to claim 1,
The first seat fixing housing and the second seat fixing housing are coupled at left and right sides of the main frame, and include a first receiving groove and a second receiving groove for receiving the first nut and the second nut, respectively. , The first receiving groove and the second receiving groove are agricultural work chairs, characterized in that provided in a shape corresponding to the outer surface to limit the rotation of the first nut and the second nut. According to claim 1,
The first seat fixing housing and the second seat fixing housing are coupled above and below the main frame, and include an upper receiving groove and a lower receiving groove for accommodating the first nut and the second nut, respectively. The receiving groove and the lower receiving groove are agricultural work chairs, characterized in that providing a hexagonal column-shaped groove to limit the rotation of the first nut and the second nut. According to claim 1,
It includes a wheel engaging portion for fixing the wheel to the main frame,
The wheel engaging portion is an agricultural work chair, characterized in that it comprises an abutment plate in close contact with the main frame and an axle fixing portion extending downward from both ends of the abutment plate through which the wheel axle passes. According to claim 1,
The main frame includes a plurality of the seat screw holes,
Farming work chair, characterized in that it is possible to change the position of the seat relative to the longitudinal direction of the main frame by changing the positions of the first seat fixing housing, the second seat fixing housing, the first nut and the second nut . The method of claim 5,
Farm chairs, characterized in that two or more seats are mounted on the main frame. According to claim 1,
Farming work chair further comprises a backrest base fixed to one side of the main frame, a backrest frame coupled to the backrest base and a backrest mounted to the backrest frame. The method of claim 7,
The main frame is provided in the form of a hollow metal bar,
Further comprising a parasol intermediate support extending from the top of the back frame to the rear and a lower support for the parasol that is slidably withdrawn or inserted from the inside of the main frame,
The parasol lower supporter supports the lower portion of the parasol, the parasol intermediate supporter fixes the umbrella stand of the parasol, and the parasol lower supporter slides from the main frame to adjust the front and rear angle of the parasol. Farm work chair. The method of claim 8,
The parasol intermediate support is mounted to be pivotable and fixed in the horizontal direction with respect to the backrest frame, so that the right and left angle of the parasol can be adjusted.

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