KR101669863B1 - Handcart combined with ladder - Google Patents

Abstract

The present invention is to provide a cart combined with a ladder for an orchard work in which various fruits such as apples, pears, and peaches are harvested.
In order to achieve the above object, according to the present invention, there is provided a vehicle comprising: a load carrier formed to load a load; a pair of wheels provided at the rear of the load carrier; a pair of support frames fixed to the rear upper surface of the carrier at regular intervals; A support plate attached to the upper ends of the support frames such that both ends of the support frames are hinged so as to be positioned between the support frames or vertically spread with respect to the support frames, And a ladder whose upper end is rotatably coupled to the support plate so as to reach the ground.

Description

Ladder Combined Handle {HANDCART COMBINED WITH LADDER}

The present invention relates to a cart combined with a ladder for harvesting various fruits, and more particularly, to an operator capable of safely climbing up and harvesting fruits such as apples, pears, peaches, etc., And more particularly, to a cart combined with a ladder for an orchard work which can be easily and easily transported to a transportation means such as a truck or a storage room.

Generally, in harvesting fruits that run on trees at a certain height, such as apples, pears, peaches, etc., the worker usually picks up the fruits one by one and carries them in the basket. When the fruit is filled in the basket, the fruit is transferred to a separate fruit box It is loaded on a wheeled cart and then transported to a truck or other storage unit and then loaded and stored.

However, when fruit is placed on a high place not reachable by the worker, the worker climbs up the fruit tree with the basket, or climbs up with a ladder and puts it temporarily in the basket. When the fruit is filled with some amount of fruit in the basket, Due to the nature of the work that has to come down to move, there is the inconvenience and inconvenience that the worker has to move carefully one by one to maintain the fruitfulness of the commodity by climbing up and down the fruit tree or the ladder from time to time. The harvest time is short.

On the other hand, a ladder-type cargo transportation car is disclosed in Korean Utility Model Registration No. 20-0303259. As shown in FIG. 1, a loading unit 100 is provided at an upper portion of a conveying unit 300, which is simply moved by four wheels, and a ladder unit 200 is integrally provided at the front of the loading unit.

However, since such a conventional cart is constructed so as to prevent a safety accident only when the conveyance unit 300 is installed so as to keep the conveyance unit 300 in a horizontal state with respect to the ground, if it is used for the fruit harvesting operation of the orchard, There is a problem that the work efficiency must be remarkably lowered.

In addition, the conventional hand cart is structured to have a considerable weight and volume in order to stably maintain the movement mode and the standing state by four wheels. Due to the structural characteristics, when carrying a fruit or the like, it is very difficult to operate in a narrow space or a non- And the space efficiency is not enough due to the unnecessarily large space when moving or storing according to the non-use.

Korean Patent Registration No. 10-0522120 (Oct. 18, 2005) Korean Registered Patent No. 10-1338925 (December, 2013) Korean Utility Model Publication No. 20-1998-056988 (Oct. 15, 1998) Korean Registered Utility Model No. 20-0303259 (Feb. 2003) Korean Registered Utility Model No. 20-0391420 (2005.08.04) Korean Utility Model Registration No. 20-0434300 (December 19, 2006)

Accordingly, the present inventor has focused on solving the above-mentioned problems and solving the problems, thereby enhancing the convenience of installation, improving the work efficiency by shortening the time, and reducing the volume in a simple form when not in use, As a result, the inventors of the present invention have invented the present invention as a result of an ongoing effort to develop a new type and structure ladder-type cart which can be conveniently stored and easily stored.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a ladder-

It is another object of the present invention to provide a ladder combined with a ladder that minimizes volume during transportation and storage, thereby maximizing ease of use and space efficiency.

According to an embodiment of the present invention, there is provided a vehicle comprising: a load carrier formed to load a load; a pair of wheels provided on a rear side of the load carrier; A handle attached to the upper end of the support frames so as to be folded to be positioned between the support frames or to be spread vertically with respect to the support frames; And a ladder which is folded into the inside of the receiving plate or spreads outwardly and whose upper end is rotatably coupled to the receiving plate so that the lower end of the ladder comes into contact with the ground.

As a result, the present invention can be easily and quickly changed to a two-wheel rolling type hand truck or a ladder depending on the use or needs of the operator, thereby improving the work efficiency and the convenience of use.

In another preferred embodiment of the present invention, a locking means may be provided at a hinge portion connecting the support frame and the support plate to maintain the support plate in a state of being vertically extended or horizontally folded with respect to the support frame.

According to a preferred embodiment of the present invention, the locking means comprises a hinge housing having one side fixed to the support plate and the other side connected to the support frame by a hinge, wherein the hinge housing has a plurality of stopper holes formed radially around the pin hole, A hinge pin movably coupled to the support frame through the hinge housing and having a plurality of stoppers radially inserted and coupled to the stopper hole around a central portion of the hinge housing, the hinge pin being mounted between the hinge housing and the hinge pin, And a spring for applying elastic force to maintain the position and state of the stopper inserted into the stopper hole.

In another preferred embodiment of the present invention, a support for maintaining the load placed horizontally with respect to the ground can be formed on the front bottom surface of the platform.

According to another preferred embodiment of the present invention, a rail is formed on both sides of the bed, a roller is provided on both sides of the upper end of the ladder so as to be slidable along the rail, and a roller Grooves can be formed.

Thus, according to the present invention, the ladder can be more easily and smoothly drawn out from the base plate, inserted into the inner space thereof, and can stably stand on the base plate.

In another preferred embodiment of the present invention, the ladder is fixed across a plurality of foot plates at regular intervals between a pair of left and right vertical frames, and at the lower end of the vertical frame, the vertical frames are aligned on the ground or in a horizontal plane And a fixing table for holding the fixing table.

In another preferred embodiment of the present invention, the ladder has a foldable structure that can be expanded and contracted in length, thereby improving ease of handling, ease of movement, and space efficiency.

According to another preferred embodiment of the present invention, the ladder includes a plurality of foot plates which are fixed across a pair of left and right first vertical frames at regular intervals, and slidable along both rails formed on both sides of the foot plate, A first ladder provided with a roller so as to be movable, and a plurality of foot plates interposed between the pair of left and right second vertical frames at regular intervals, the upper end being connected to the lower end of the first ladder by a hinge, And a second ladder having a fixing base for holding the second vertical frames in a bottom or a horizontal plane in a lower end thereof.

Thus, the present invention allows the ladder to be folded and folded in the form of an overlay on the inside of the base plate, so that the entire volume can be minimized during movement or storage.

The present invention having the means and configuration for solving the technical problems as described above can be easily changed to a two-wheel rolling type hand-rail or a work ladder according to the use or necessity of the operator, thereby increasing the convenience of use. In other words, when used as a ladder, the fruit box is placed on the base plate and the fruit is easily harvested by the worker without being dependent on the height of the fruit tree and put in the fruit box, or the worker stands on the base plate, It is possible not only to improve the convenience of work but also to carry out a large amount of harvested fruit in a fruit box quickly and easily when used as a hand cart so that the work efficiency can be improved.

In addition, the present invention minimizes volume during movement and storage by integrally combining and juxtaposing the functions and utilities of a ladder and a cart to improve the ease of use and space efficiency of a single article, And digestion can maximize functionality and utility.

1 is an exemplary view showing a cart according to a conventional technique.
FIG. 2 is a diagram showing a fully folded state for using a ladder-combined hand cart according to an embodiment of the present invention as a hand cart.
FIG. 3 is a view illustrating a state in which the cart is used as a ladder according to an embodiment of the present invention.
4 is a partial sectional view illustrating a hinge portion of a hand-held ladder according to an embodiment of the present invention.
FIG. 5 is a perspective view showing a state in which a hinge part of a ladder-combined hand cart according to an embodiment of the present invention is partially removed.
FIGS. 6 to 9 are diagrams showing the stages in which the cart combined with the ladder according to the embodiment of the present invention is deployed for use as a ladder.

Hereinafter, embodiments according to the present invention will be described more specifically with reference to the accompanying drawings.

Prior to this, the following terms are defined in consideration of the functions of the present invention, and they are to be construed to mean concepts that are consistent with the technical idea of the present invention and interpretations that are commonly or commonly understood in the technical field.

In the following description, well-known functions or constructions are not described in detail to avoid obscuring the subject matter of the present invention.

Herein, the attached drawings are exaggerated or simplified in order to facilitate understanding and clarification of the structure and operation of the technology, and it is to be noted that each component does not exactly coincide with the actual size.

In the following description, the side where the support of the platform is positioned forward is defined as the front side, and the side where the wheel and the support frame are positioned is defined as the rear side.

2 and 3, the ladder-combined hand cart according to the embodiment of the present invention mainly includes a platform 10, a wheel 20, a support frame 30, a handle 40, a platform 50, (60).

The platform 10 is formed to be able to load and carry various types of loads such as fruit boxes.

That is, the platform 10 is a part that substantially supports the load, and is formed as a relatively flat plate-like body.

Since the platform 10 is placed horizontally with respect to the ground on the front bottom surface of the platform 10, the platform 10 is fixed to the platform 20 with a predetermined height from the ground. A support base 11 is formed to prevent the support member 11 from falling forward or tilting forward.

The wheels 20 are paired with each other on the rear bottom surface of the platform 10 so that the platform 10 can easily and easily be loaded with loads.

In this case, it is preferable that the wheel 20 can freely change the traveling direction when moving forward or backward, and it can stably bear the load transmitted when the load is loaded on the load carrier 10, It is preferable to be formed of an elastic material such as rubber.

The support frame 30 supports a load tilted toward the operator when the load 10 is loaded and moves, and is paired with the support plate 50 so as to be folded in a form in which the support plate 50 is folded inward. And are vertically fixed to the platform 10 at regular intervals.

In other words, the supporting frames 30 are formed in a shape of a "A" or "B" shape in cross section so as to have a predetermined length, and the supporting frame 30 is fixed to the platform 10 As shown in Fig.

Here, the support frame 30 is preferably made of a material such as stainless steel or a high-strength aluminum alloy. However, the support frame 30 may be made of a metal or a synthetic resin material having excellent physical properties such as durability and strength, In addition to the general simple shape, it is also possible to make the shape to increase the structural strength and reduce the weight.

The handle 40 is fixed to the upper portions of the support frames 30 so that the operator can smoothly adjust the movement direction while holding the wheels 20 with both hands and pushing the wheels 20 easily.

Here, the handle 40 may have a structure in which both ends thereof are fixed to the upper portions of the support frames 30, but it is needless to say that the handle 40 may be integrally formed so as to be curved from the respective support frames 30 .

The support plate 50 is attached to the upper end of the support frames 30 by a hinge 70 so as to be folded to be positioned between the support frames 30 or to spread vertically to the support frames 30.

That is, when the support plate 30 is folded horizontally with respect to the support frames 30, the support plate 30 supports the load tilted toward the operator when the load 10 is loaded and loaded, Is a portion that supports a fruit box or the like at a predetermined height, and is formed as a relatively flat plate.

A predetermined space is formed in the support plate 50 so that the ladder 60 can be folded and housed therein. When the support plate 30 is vertically extended or horizontally folded at the lower end of the support plate 30 And a knob hole 53 for stably holding the knob and allowing easy operation.

The rails 51 are formed at both sides of the support plate 50 so that the ladder 60 can be folded more smoothly into the rails 51. The lower ends of the rails 51 are provided at the upper ends of the ladder 60 A roller groove 52 is formed on both sides of the roller 51 in which a roller 63 slidably movable along the rail 51 is inserted. That is, when the roller 63 rolls along the rail 51 and is placed in the roller groove 52, the ladder 60 is not freely moved due to the contact interference, so that the ladder 60 is freely folded along the rail 51 in the unfolded state It is possible to prevent entry.

The hinge 70 connecting the support plate 30 and the support plate 30 is provided with a locking means for maintaining the support plate 30 vertically extended or horizontally folded with respect to the support frames 30 have.

4 and 5, one side of the locking means is fixed to the support plate 50 and the other side of the locking means is hinged to the support frame 30, A hinge housing 71 having a plurality of stopper holes 73 and a plurality of stopper holes 73 radially provided around the center portion of the hinge housing 71 movably coupled to the support frame 30 via a pin hole 72, The hinge pin 75 is inserted between the hinge housing 71 and the hinge pin 75 so that the stopper 76 is inserted into the stopper hole 73 And a spring 77 that applies an elastic force to maintain the state.

Therefore, when the operator presses the end of the hinge pin 75 exposed to the surface of the hinge housing 71, the stopper 76 formed integrally with the hinge pin 75 is released into the stopper hole 73, The support plate 30 is freely rotatable about the hinge pin 75 so that the operator can unfold the support plate 50 vertically or horizontally with respect to the support frames 30 at an angle desired by the operator.

When the end of the hinge pin 75 is pressed, the spring 77 generates an elastic restoring force for returning to the original position while being compressed. Therefore, when the worker releases the pressure for pressing the hinge pin 75, The stopper 76 is naturally inserted into the stopper hole 73 while the hinge pin 75 is moved to the original position by the contact of the stopper 76 and the stopper hole 73. As a result, It is possible to stably maintain the folded state of the support frame 50 vertically spread or horizontally with respect to the support frames 30.

The upper end of the ladder 60 is rotatably coupled to the support plate 50 such that the ladder 60 is folded into the inside of the support plate 50 or unfolded to the outside and the lower end thereof contacts the ground.

Roller (63) is provided on both sides of the upper end of the ladder (60) so as to be slidable along the rail (51) of the receiving plate.

That is, the ladder 60 has a foldable structure that can be expanded and contracted for varying the length, and both ends of the ladder 60 in the longitudinal direction are connected to both sides of the support plate 50 in a pin joint manner.

Therefore, when not used as a ladder, it is folded and naturally folded at the time of movement and storage, and is stored in the internal space of the support plate 50. When the ladder is used as a ladder, the support plate 50 is supported in a unfolded state.

The ladder 60 is fixed across a plurality of foot plates 64 at regular intervals between a pair of vertical frames 61a and 62a on the left and right so that the worker can climb up and down a predetermined height, 62a are connected to the lower ends of the vertical frames 62a by hinges, respectively, for fixing the bottom or the horizontal surface.

Further, on the bottom surface of the fixing table 66, a non-slip portion (not shown) for increasing the frictional force with the floor and preventing slippage when the ladder is installed is formed.

That is, the fixing table 66 is formed to be in close contact with the paper surface in a face-to-face manner, and is provided so as to be erected with respect to the vertical frame 62a while being rotated at a predetermined angle around the hinge.

In addition, the upper surface of the foot plate 64 is provided with uneven portions (not shown) to prevent slippage when the worker moves up and down.

That is, the ladder 60 includes a first ladder 61 and a second ladder 62. The first ladder 61 is disposed between a pair of left and right first vertical frames 61a at regular intervals A roller 63 is provided on both sides of the upper end of the pedestal 64 so as to be slidable along the rail 51 formed on both sides of the pedestal 50. The second ladder 62 A plurality of foot plates 64 are fixed across a pair of left and right second vertical frames 62a at regular intervals and the upper end of the foot plates 64 is fixed by a lower end of the first ladder 61 and a rotating shaft 65 And the second vertical frames 62a are provided at the lower end thereof with a fixing table 66 for keeping the bottoms and the horizontal surfaces in a state of being mixed.

The support plate 50 and the ladder 60 may be made of a material such as stainless steel or a high strength aluminum alloy. However, the support plate 50 and the ladder 60 may be made of a metal or a synthetic resin material having excellent physical properties such as durability and strength, The cross-sectional shape thereof may be formed in a form of increasing the structural strength and lighter weight in addition to the general circular or square shape.

As shown in FIG. 2, when the ladder is used as a hand truck for carrying a luggage, the ladder 60 according to the embodiment of the present invention is inserted into the support plate 50, A predetermined load is loaded on the platform 10 and the support frame 30 is tilted toward the operator's body so that the operator grips the handle 40 in a state where only the wheel 20 is touched on the ground surface It can be moved by pushing or pulling.

In addition, when moving or storing the luggage without storing the luggage, the support plate 50 and the ladder 60 can be simply folded and folded over the support frame 30 to minimize the total volume that is unnecessarily occupied.

Therefore, convenience of handling and ease of movement as well as space efficiency can be improved.

6 to 9, when the locking plate is unlocked, the support plate 50 is moved vertically with respect to the support frame 30, as shown in FIG. 3, The ladder 60 can be unfolded and the ladder 60 can be staggered to firmly and stably attach the part of the fixing table 66 to the ground so that the ladder 60 can be maintained in a state in which the wheel 20 does not roll, The worker can safely and safely ride on the ladder 60 and can easily and easily carry out operations such as harvesting the fruit in a state in which the fruit box is placed on the upper surface of the support plate 50. [

That is, the cart combined with the ladder according to the embodiment of the present invention can be used and extinguished at the same time by using two products as one product, thereby maximizing functionality and utility, .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments or constructions. Various changes and substitutions may be made without departing from the spirit and scope of the invention. It will be obvious to those skilled in the art that the present invention can be widely applied to other embodiments.

Therefore, it is to be understood that modifications and variations of the features of the present invention are intended to be included within the spirit and scope of the present invention.

10: carrier 11: support
20: wheel 30: support frame
40: handle 50:
51: rail 52: roller groove
53: handle hole 60: ladder
61: 1st ladder 62: 2nd ladder
63: roller 64: scaffold
65: rotating shaft 66:
70: Hinge 71: Hinge housing
72: pin hole 73: stopper hole
75: Hinge pin 76: Stopper
77: spring

Claims (9)

A load carrier configured to load;
A pair of wheels provided at the rear of the platform;
A pair of support frames fixed to the rear upper surface of the platform at regular intervals;
A handle fixed to an upper portion of the support frames;
A base plate having both ends folded to be positioned between the support frames or attached to the upper ends of the support frames in a hinged manner so that both ends thereof extend vertically to the support frames, And
A first ladder having rollers provided on opposite sides of the upper plate and capable of sliding along rails formed on both sides of the pedestal plate, and a pair of left and right pairs of right and left first vertical frames, A plurality of foot plates are fixed across the second vertical frames at regular intervals, the upper ends thereof are connected to the lower ends of the first ladders by hinge joints, and the second vertical frames are aligned on the floor or the horizontal plane And a second ladder having a fixing table for holding the first ladder and the second ladder so as to be able to be extended or retracted. The foldable structure folds into the inside of the receiving plate or spreads out to the outside, Coupled ladder;
Including a ladder cart.
The method according to claim 1,
And a hinge portion connecting the support frame and the support plate, wherein the support plate is provided with locking means for keeping the support plate vertically extended or horizontally folded with respect to the support frame.
3. The method of claim 2,
Wherein the locking means comprises:
A hinge housing having one end fixed to the base plate and the other end hinged to the support frame, the hinge housing having a plurality of stopper holes formed radially around the pin hole;
A hinge pin movably coupled to the support frame through one end of the pin hole and having a plurality of stoppers radially inserted and coupled to the stopper hole around a center portion of the hinge housing; And
A spring mounted between the hinge housing and the hinge pin to apply an elastic force to maintain the position and state in which the stopper is inserted into the stopper hole;
A ladder-combined cart containing.
The method according to claim 1,
And a support base for holding the platform in a state in which the platform is placed horizontally with respect to the ground surface is formed on a front bottom surface of the platform.
delete delete delete delete The method according to claim 1,
And a handle hole is formed in a lower end portion of the receiving plate.

Images