KR20090099883A - 3-wheel chair for farm-work - Google Patents

Abstract

PURPOSE: A three-wheeled chair capable of height adjustment is provided, which enables to perform cultivation, management, and harvest of the crops more comfortably and easily. CONSTITUTION: A three-wheeled chair(100) is constituted as follows. A height adjustment device(111) which moves a sheet(101) mounted on the upper part for the height adjustment is installed in the main frame positioned in the center of the sheet bottom side. The running wheel(115) is installed in the wheel axle(114) installed in the upper end front side of the main frame. A pair of listing wheel(125) are installed in the assistant frame(120). An insert regulating rod is set up vertically in the top end portion of the main frame. In the assistant frame, a height adjusting pipe is set up vertically.

Description

3-wheel chair for crop management {3-Wheel chair for farm-work}

The present invention relates to a three-wheeled work chair for managing crops, and more particularly, in managing crops such as grape crops, while the worker is seated on a sheet, the left and right along the furrow while adjusting the level of the sheet according to the ground slope of the plantation. It relates to a three-wheeled work chair for crop management to move the work smoothly.

In general, farmland is formed in the open field or plastic house, so that the planting and cultivation of crops are made on the land, so the farmland is not flat and there are many slopes.

In particular, the cultivation management and harvesting of grapes, tomatoes, peppers, etc., because the worker should always bend the waist in a standing state, causing a back pain of the worker and aggravated fatigue, greatly reducing the work efficiency.

For example, grape stalks may cause musculoskeletal disorders, such as the operator's disc, because the work must be done in a stunted position for a long time.

As a prior art for solving this problem, in the utility chair registration No. 112544 (April 9, 1998), an improved farming chair, the height of the seat can be adjusted by lifting and lowering the height according to the body shape of the worker or the height of the crops. Techniques are known that make it convenient to carry out harvesting operations and allow them to be easily dragged around during transport before and after work.

In addition, in the "furrow work car" of Korean Patent Publication No. 1999-40466 (1999.06.05), the worker moves from side to side while sitting, and is moved in the left and right directions under the chair where the worker can sit. After installing the wheels, the worker is comfortable sitting on the chair and works by pushing the left and right directions using both feet, and the technology is provided with a height adjustment and rotatable connection means of the chair.

The above prior arts relate to working chairs capable of managing agricultural products while moving for elderly or women who are weak, but these working chairs do not have the function of horizontally adjusting the working chairs according to the inclination of the crop plantation. .

Therefore, there is a problem that the work fatigue is aggravated because it can impose a strain on the lower body and the spine of the worker to maintain the horizontal when working on the slope.

In order to improve this, the "three-wheel working chair for crop management" of the patent application No. 2007-39112 (2007.4.23) previously filed by the present inventor discloses a work chair having a function of adjusting the horizontal level on a slope have.

Accordingly, the present invention has been invented to solve the above problems, in the management of crops, such as grape crops by moving the left and right along the furrow while adjusting the level of the sheet in accordance with the inclination of the plantation in the seated state on the sheet The purpose is to provide a three-wheeled work chair for managing crops to facilitate the work.

The present invention complements the height adjustment and horizontal adjustment functions of the "crop management chair for three crops" of Patent Application No. 2007-39112 (April 23, 2007) to specify the technical configuration so that the operator can operate more easily There are technical features.

In order to achieve the above object, the present invention,

In 3-wheel work chair for crop management,

A height adjusting mechanism for moving the seat mounted upward and downward for height adjustment of the seat is built in the main frame located at the center of the seat lower side, and a driving wheel is installed on the wheel shaft installed at the top front of the main frame. A pair of lifting wheels are installed on the auxiliary frame assembled through the fitting adjusting rod and the height adjusting tube to the rear of the fitting, while the fitting adjusting rod is vertically installed at the upper end of the main frame, and the fitting frame has an outer side of the fitting adjusting rod. The height control pipe is inserted into the assembly is installed vertically, the height control pipe is adjusted after the height is adjusted in the fitting rod is fixed by the height of the auxiliary frame and the lifting wheel and fixed to the crop management, characterized in that made Provide a three-wheel work chair.

In a preferred embodiment, the auxiliary frame is configured to be integrally fixed to the U-shaped frame and the horizontal frame, the lifting wheel is rotatably mounted on both ends of the U-shaped frame, the height adjustment pipe is corresponding to the fitting adjustment rod It is characterized in that the vertically fixed installation between the U-shaped frame and the horizontal frame in position.

More preferably, the fitting adjustment rod and the height adjustment pipe is characterized in that a total of two are installed in each of the left and right sides in the main frame and the auxiliary frame, respectively.

In addition, the fitting adjustment rod is formed with a fitting hole at a predetermined interval along the vertical direction, the through hole is formed in the height adjustment pipe,

The height adjusting tube is fixed to the fitting adjusting rod by a stopper pin inserted into a specific fitting hole of the fitting adjusting rod through the through hole of the height adjusting tube.

In addition, the auxiliary frame is provided with a fixed tube that is fixed to the lower end of the support frame is fitted, the upper seat of the support frame is integrally installed, the pocket seating portion is characterized in that the pockets for harvest or work tools are assembled It is done.

In addition, the lower end of the support frame is characterized in that it is fixed by a screw fixing mechanism assembled through the fixing tube.

In addition, the wheel shaft of the main frame is provided with a rotation fixing bar for restraining the rotation of the driving wheel,

The rotation fixing bar is characterized in that the one end is hinged to the wheel shaft is coupled to the upper end of the peripheral portion of the driving wheel in a state rotated downward to pressurize and rotationally restrain the driving wheel.

In addition, the height adjustment mechanism,

Gas cylinder or hydraulic cylinder type that is installed vertically on the mainframe with the seat mounted at the top of the upper frame, the working fluid in the cylinder moves according to the operation of the operation lever, and the spindle is operated up and down to adjust the height of the seat. It is characterized in that the spindle mechanism of.

Accordingly, according to the working chair of the present invention as described above, the height of the seat can be adjusted to fit the body of the operator, and the height of the wheel for moving the ground according to the slope of the ground of the plantation is adjusted to level the seat. As can be, the cultivation, management and harvesting of crops can be made easier and more convenient, as well as the body of the worker seated on the sheet is prevented from tilting, there is an advantage that can effectively prevent diseases of the musculoskeletal system such as disk.

In particular, the working chair of the present invention was invented in consideration of the rural manpower composed of the majority of the elderly, it is possible to move smoothly even on the inclined furrow, it is possible to work while maintaining the level of the sheet on the inclined ground, the size of the crop According to the height of the seat can be adjusted to work, the elderly workers can easily and conveniently work while reducing the effort.

In addition, the working chair of the present invention is provided with a pocket, such as a box or a basket that can put the harvest or other work tools, etc. has the advantage that the work convenience is improved.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail. The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. The terms or words used in the present specification and claims are consistent with the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It should be interpreted as meaning and concept.

1 is a perspective view showing a three-wheel work chair for crop management according to a preferred embodiment of the present invention, Figure 2 is a seat by a cylinder mechanism in a three-wheel work chair for crop management according to a preferred embodiment of the present invention This is a state diagram showing the up and down operating state of.

3 is a perspective view illustrating a lifting and lowering operation state of the lifting wheel, and FIG. 4 is a side view illustrating a lifting and lowering operation state of the lifting wheel.

In addition, Figure 5 is a perspective view showing a state in which the rotation of the driving wheel is restricted by the rotation fixing bar, Figure 6 is a perspective view showing a state in which the working support frame and the pocket is assembled.

First, in the working chair 100 of the present invention, as shown in Figure 1, the main frame 110 located in the center height adjustment mechanism for moving the seat 101 up and down for height adjustment of the seat 101 111 is mounted, the height adjustment mechanism 111 is embedded in the main frame 110 long in the vertical direction.

The height adjusting mechanism 111 may be implemented as a gas cylinder (or pneumatic cylinder) or a hydraulic cylinder spindle mechanism which is widely used as a height adjusting mechanism of a general home chair.

For example, the gas cylinder type spindle mechanism has a spindle 112 that moves up and down vertically, and the seat 101 is integrally mounted on the upper end of the spindle 112.

In addition, the spindle mechanism includes an operating lever 113 protruding laterally from the lower side of the seat 101, and is integrated with the seat 101 while the working fluid (gas) in the cylinder moves in conjunction with the operation of the operating lever 113. The spindle 112 is moved forward and backward.

In other words, when the operator manipulates the operating lever 113 to adjust the height of the seat 101, the spindle 112 is raised (forward) or lowered (forward) by the movement of the working fluid (gas) in the cylinder. As the seat 101 moves up and down, the height at which the worker sits, that is, the height of the seat is adjusted.

As a result, the operator can operate the operating lever 113 to arbitrarily adjust the height of the sheet 101 according to the height of the crop, and then sit and work, thereby making the work easier and more comfortable.

In addition, the wheel shaft 114 is integrally formed vertically on the upper front surface of the main frame 110, and the driving wheel 115 is rotatably mounted to the lower end of the wheel shaft 114.

In addition, the fitting adjustment rod 116 is vertically installed vertically on the upper end of the main frame 110, a total of two fitting adjustment rods 116, one each on both the left and right sides are installed.

The fitting adjusting rods 116 are provided with fitting holes 116a at regular intervals in the vertical direction, and the fitting holes 116a fix the height of the auxiliary frame 120 and the elevating wheel 125 as described below. A stopper pin 124 is inserted into and coupled thereto.

On the other hand, the working chair 100 of the present invention is provided with a lifting wheel 125 that can be lifted, lowered relative to the main frame 110 and the traveling wheel 115 mounted thereto, the lifting wheel 125 Is rotatably mounted at both ends of the auxiliary frame 120 which is assembled to the rear of the main frame 110.

The auxiliary frame 120 is a U-shaped frame 121 and the horizontal frame 122 is integrally welded to form a frame, which is formed vertically long in the U-shaped frame 121 of the auxiliary frame 120 Both ends serve as wheel shafts, and the lifting wheel 125 is rotatably mounted to wheel shaft portions corresponding to both ends of the U-shaped frame 121.

In the working chair 100 of the present invention, the traveling wheel 115 and the elevating wheel 125 can be rolled sideways, that is, mounted on the ground based on the operator seated on the seat 101. When the operator pushes the ground with his foot in a seated state, the traveling wheel 115 and the lifting wheel 125 are rolled so that the entire work chair can move left and right.

In addition, between the U-shaped frame 121 and the horizontal frame 122 of the auxiliary frame 120, a total of two height control pipes 123, one for each of the left and right sides, are welded and installed, each height control pipe 123 Is vertically installed vertically long in the corresponding position of the fitting adjusting rod 116 so that the fitting adjusting rod 116 of the main frame 110 can be fitted inward.

Each of the height adjustment pipe 123 of the auxiliary frame 120 is to be fitted upwards to the outside of the fitting control rod 116 of the main frame 110, so that the height adjustment pipe 123 is fitted fitting rod ( The auxiliary frame 120 is assembled with the main frame 110 by being fitted to the 116.

In addition, each height adjustment pipe 123 is formed with a through hole 123a into which the stopper pin 124 can be fitted at a specific position on the length.

After the corresponding fitting rod 116 of the main frame 110 is inserted into each height adjusting tube 123 of the auxiliary frame 120, the through hole 123a and the fitting adjusting rod of the height adjusting tube 123. In the state where the fitting holes 116a of 116 are matched, the stopper pin 124 is fitted into the specific fitting hole 116a of the fitting adjusting rod 116 through the through hole 123a of the height adjusting pipe 123. (See FIG. 6).

When the stopper pin 124 is assembled in this way, the height of the auxiliary frame 120 and the elevating wheel 125 is fixed.

3 and 4 are views showing a state in which the height of the auxiliary frame 120 and the elevating wheel 125 is adjusted to adjust the working chair 100 in a horizontal state, basically removing the stopper pin 124 In the height control pipe 123 is able to move up and down in the fitting rod 116, the main frame 110 and the traveling wheel 115, the auxiliary frame 120 and the lifting wheel 125 for the seat 101 Operation of raising and lowering becomes possible.

In particular, as an example, as shown in the left figure of FIG. 4, a trench is present on the bottom surface of the plantation along a section in which the work chair 100 moves left and right, and the ground wheel 1 is in contact with the traveling wheel 115. When it is necessary to move the groove surface 2 which is relatively low in comparison with the elevating wheel 125 grounded, the height of the elevating wheel 125 should be adjusted to be lower than the traveling wheel 115 by the depth of the groove surface 2. do.

Accordingly, when the operator removes the stopper pin 124, as shown in the right figure of Figure 4, the height adjustment pipe 123 is moved down by the fitting adjustment rod 116 to lower the entire auxiliary frame 120 While each lifting wheel 125 can be grounded to the groove surface (2), and in this state by fixing the height of the auxiliary frame 120 and the lifting wheel 125 by inserting the stopper pin 124, the working chair and seating thereon It can move stably without tilting one worker.

As described above, in the working chair 100 of the present invention, the stopper pin 124 is inserted into the through-hole 123a of the height adjusting pipe 123 in a state where the lifting wheel 125 is grounded on the measuring surface 2. By inserting and fixing in the fitting hole 116a of the rod 116, the entire auxiliary frame 120 including the lifting wheel 125 is the work chair including the main frame 110, the traveling wheel 115, the seat 101 ( The height is fixed at 100).

Of course, if it is necessary to raise the height of the lift wheel 125, the stopper pin 124 is removed, and then the height adjusting pipe 123 is raised from the fitting adjustment rod 116 to the higher than the conventional fitting hole ( The stopper pin 124 may be fixed to 116a.

In this case, the auxiliary frame 120 and the lifting wheel 125 are integrated with the main frame 110 and the driving wheel 115 in a state where they are lifted up.

The height of the auxiliary frame 120 and the elevating wheel 125 may be variously manipulated so that the elevating wheel 125 may be operated at a high position with the driving wheel 115.

On the other hand, as shown in Figure 5, both ends of the auxiliary frame 120, more specifically, a fixed tube 126 that can be fixed to the support frame 131 on the side of the wheel shaft portion corresponding to both ends of the U-shaped frame 121 This welding is installed, and if necessary, a fixed tube (not shown) may also be welded to the side of the lower end of the wheel shaft 114 of the main frame 110.

At this time, the lower end portion of each support frame 131 is inserted into the fixing tube 126, the screw fixing mechanism 127 is provided to be fixed after being coupled, the screw fixing mechanism 127 is a handle 127a and a screw 127b In this case, the screw 127b is fixed to the lower end of the support frame 131 coupled to the inside through the fixing tube 126.

Eventually, when the lower end of the support frame 131 is inserted into the fixing tube 126 inside and the handle 127a of the screw fixing mechanism 127 is rotated, the support frame is integrated while the screw 127b holds the lower end of the support frame. To be fixed.

Pocket support 132 is integrally installed at the upper end of each of the support frame 131, the pocket support 132 is assembled with a pocket 133 that can put the tools required for harvest or other operations.

Here, the pocket 133 may be understood to include all of the baskets, boxes, etc., which are placed on the pocket support 132 of the support frame 131 and where the harvest or work tool is put.

In addition, Figure 6 is a view showing a restraining means for restraining the rotation of the traveling wheel 115, as a restraining means for restraining the rotation of the traveling wheel 115, to be fitted to the peripheral portion (周 () of the traveling wheel 115 Rotating fixing bar 141 is installed on the wheel shaft 114 of the main frame 110.

As shown in FIGS. 1 and 6, the rotation fixing bar 141 is manufactured by bending a thin bar into a U shape and processing the overall shape to match the shape of the periphery of the driving wheel 115. In one mechanism, one end portion is rotatably hinged to the wheel shaft 114 of the main frame 110.

When the driving wheel 115 is fixed, the operator grasps the other end of the rotation fixing bar 141 and lowers the rotation fixing bar to be fitted to the upper edge of the driving wheel, which is fitted to the upper edge of the driving wheel 115. When the rotation fixing bar 141 is to press the driving wheel to restrain its rotation.

In addition, when the driving wheel 115 is to be rotated, the rotation fixing bar 141 is flipped upward, as shown in FIG. 1, to be coupled to the wheel shaft 114 of the main frame 110, in which case the driving wheel 115 is rotated. Since there is no interference by the rotation fixing bar 141, the rotation is freely possible, and in this state, the driving wheel 115 can roll the ground.

In this way, in the work chair 100 according to the present invention, the height of the seat 101 can be properly adjusted according to the height of the crop, so that the worker can perform the work more easily and smoothly in the state seated on the seat 101. In particular, the seat can be leveled by appropriately adjusting the height of the lifting wheel 125 according to the condition of the ground, such as the inclined surface or the groove is formed. And problems that could strain the spine, and the problems that the worker's work fatigue was aggravated can all be solved.

In the above, a specific preferred embodiment according to the present invention has been described. However, it is to be understood that the present invention is not limited to the above-described embodiments, and the above-described embodiments merely represent a part of various embodiments to which the principles of the present invention are applied. Those skilled in the art to which the present invention pertains may make various changes without departing from the spirit of the technical idea of the present invention described in the claims below.

1 is a perspective view showing a three-wheel work chair for crop management according to an embodiment of the present invention,

Figure 2 is a state diagram showing the up and down operating state of the seat by the cylinder mechanism in the three-wheel work chair for crop management according to an embodiment of the present invention,

Figure 3 is a perspective view showing the lifting, lowering operation state of the lifting wheel in the working chair of the present invention,

Figure 4 is a side view showing the lifting, lowering operation state of the lifting wheel in the working chair of the present invention,

Figure 5 is a perspective view showing a state in which the rotation of the running wheel is constrained by the rotation bar in the working chair of the present invention,

Figure 6 is a perspective view showing a state in which the working support frame and the pocket is assembled in the working chair of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: working chair 101: sheet

111: height adjustment mechanism 112: spindle

113: operating lever 114: wheel shaft

115: driving wheel 116: fitting adjustment rod

116a: fitting hole 120: auxiliary frame

121: U-shaped frame 122: horizontal frame

123: height adjustment pipe 124: stopper pin

125: lifting wheel 126: fixed tube

127: screw fixing mechanism 131: support frame

132: pocket support 133: pocket

141: rotation lock bar

Claims (8)

In 3-wheel work chair for crop management, The height adjusting mechanism 111 for vertically moving the seat mounted upward to adjust the height of the seat 101 is built in the main frame 110 located at the center of the lower side of the seat 101, and on the upper front surface of the main frame 110. The traveling wheel 115 is installed on the installed wheel shaft 114, and the rear frame of the main frame 110 is limited to the auxiliary frame 120 assembled through the fitting rod 116 and the height adjusting tube 123. While the pair of lifting wheels 125 are installed, the fitting adjusting rod 116 is vertically installed at the upper end of the main frame 110, and the auxiliary frame 120 is fitted to the outside of the fitting adjusting rod 116. Assembling the height adjustment pipe 123 is installed vertically, the height adjustment pipe 123 is adjusted after the height is adjusted in the fitting control rod 116 to adjust the height of the auxiliary frame 120 and the elevating wheel (125). And three-wheel operation of crop management, characterized in that the fixing is made . The method according to claim 1, The auxiliary frame 120 is configured by the U-shaped frame 121 and the horizontal frame 122 is integrally fixed, the lifting wheel 125 is rotatably mounted to both ends of the U-shaped frame 121, The height control pipe 123 is a three-wheel operation for crop management, characterized in that the vertically fixed installation between the U-shaped frame 121 and the horizontal frame 122 at the corresponding position of the fitting adjustment rod 116 chair. The method according to claim 2, The fitting adjustment rod 116 and the height adjustment pipe 123, the three-wheel work chair for crop management, characterized in that a total of two are installed in each of the left and right sides in the main frame 110 and the auxiliary frame 120, respectively. The method according to claim 1, The fitting adjusting rod 116 has a fitting hole 116a of a predetermined interval is formed along the longitudinal direction, the through hole 123a is formed in the height control pipe 123, The height adjustment pipe 123 is adjusted by the stopper pin 124 inserted into the specific fitting hole 116a of the fitting adjusting rod 116 through the through hole 123a of the height adjustment pipe 123. Crop work chair for the crop management, characterized in that fixed to the rod (116). The method according to claim 1, The auxiliary frame 120 is provided with a fixed tube 126 is fixed to the lower end of the support frame 131 is fitted, the upper end of the support frame 131, the pocket support 132 is integrally installed, the pocket support ( 132) a three-wheel work chair for crop management, characterized in that the pocket 133 is put into the harvest or work tools. The method according to claim 5, The lower end of the support frame 131 is a three-wheel work chair for crop management, characterized in that fixed by a screw fixing mechanism 127 assembled to pass through the fixing pipe (126). The method according to claim 1, The wheel shaft 114 of the main frame 110 is provided with a rotation fixing bar 141 for restraining the rotation of the driving wheel 115, The rotation fixing bar 141 is coupled to the top of the peripheral portion of the driving wheel 115 in a state in which one end is hinged to the wheel shaft 114 and rotated downward, thereby pressing and rotating the driving wheel 115. 3-wheel working chair for crop management. The method according to claim 1, The height adjustment mechanism 111, The spindle 101 is integrally mounted to the main frame 110 while the seat 101 is integrally mounted on the top, and the working fluid in the cylinder moves according to the operation of the operating lever 113 to allow the spindle 112 to move. The three-wheel work chair for crop management, characterized in that the spindle mechanism of the gas cylinder or hydraulic cylinder system in which the height of the seat 101 is adjusted by the vertical operation.

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