KR20220155043A - Level lift - Google Patents

Abstract

In accordance with the present invention, a level lift is provided. In order to improve work convenience by enabling a worker to perform loading work in a correct posture without bending his or her back as an article to be loaded is elastically supported through elastic extension and contraction, the level lift includes: a base plate provided with a plurality of moving wheels provided in a lower part to be idlable; and a loading means having a loading plate provided while being stacked in an upper part of the base plate and made to allow an article to be stacked on an upper side thereof. The loading means includes: the loading plate; and a support member connecting the base plate and the loading plate to support the loading plate while elastically extending and contracting the loading plate with respect to the base plate, wherein the support member includes: a support plate placed between the base plate and the loading plate; a plurality of foldable bodies formed to be foldable while individually connecting the base plate and the support plate and the support plate and the loading plate, to individually control a distance between the base plate and the support plate and a distance between the support plate and the loading plate through extension and contraction; and an elastic spring provided to individually form an elastic force between the base plate and the support plate and between the support plate and the loading plate.

Description

Level lift {Level lift}

The present invention relates to a level lift capable of conveniently carrying out an object loading operation by moving an object in a lifted state from the floor to a raised position during storage and transportation.

Specifically, as the object to be loaded is elastically stretched and elastically supported, the operator can carry out the loading work in an upright posture without bending the waist, thereby improving the convenience of work. It relates to a level lift. .

More specifically, it relates to a level lift that is structurally simple and can be easily manufactured and provided economically.

BACKGROUND ART In general, in a logistics warehouse, such as a warehouse for storing goods (logistics), various transportation means and transport means are used when goods (cargo) are loaded or taken out.

At this time, various level lifts designed to raise and lower the height of goods in a customized manner with respect to the loading position when loading cargoes easily and stably from the means of transportation and transporting them to storage areas are being applied.

In the above, the level lift is generally one of the transport aids for safely moving a heavy object, and includes a lower frame having a moving roller thereon; It is provided on the lower frame and includes a loading plate for placing an object thereon.

That is, after a heavy object is loaded on the loading plate, the user pushes and pulls the lower frame to move the loaded object to a desired location.

In Korean Utility Model Application No. 20-2005-0008045 (name: movable table lift/2005.03.24.), as is known in the publication, a lower frame equipped with a moving roller; A table member for placing an object to be moved; Link members cross-connected between the lower frame and the table member; and an operating means for moving the link member up and down, comprising: a vertical bar installed at the same height on one side of the fixing plate of the lower frame; a handle member formed integrally with an upper end of the vertical rod and comprising a gripping rod composed of a vertical inclined portion inclined to one side and a curved protrusion connected to the upper end of the vertical inclined portion and having a curved central region; a partition member installed between the vertical bars of the handle member and having a plurality of through holes; and an operation panel disposed between the vertical rods above the partition member. A lift provided in a battery case provided under the partition member and configured as a control means for controlling the overall operation of the lift is described.

And in Korea Patent Application No. 10-2019-0006636 (name: dock leveler including table lift/2019.01.18.), as known in the publication, a lifting part that moves up and down and the lifting It includes a leveling part connected to one end of the part, and the lifting part includes an upper plate, a leg part connected to the upper plate and supporting the upper plate, and a vertical movement part that moves the upper plate up and down. A leveler including a (Vertical Moving Part) is described.

On the other hand, in Korean Patent Application No. 10-2012-0100376 (Name: Transporter for Carrying Modules for Maglev Trains/Sep. A scissor type lift that mounts the balance module and the segmented rail combination and adjusts the level of the balance module and the segmented rail combination by raising or lowering by hydraulic pressure; Driving wheels supporting and moving the scissor lift; a control unit for controlling the ascending or descending of the scissor lift and for controlling the driving of the driving wheels for the movement of the balance module and segmented rail assembly; and a hydraulic unit for lowering a skid roller of the cart module by providing hydraulic pressure controlled by the control unit.

In addition, in Korean Patent Application No. 10-2009-7014711 (Name: lift for skids and pallets/2007.12.14.), as known in the publication, a carrier with a vertical mast; a carriage having a pair of forwardly protruding forks for engaging pallets or skids to enable vertical movement of the vertical mast; a pair of outriggers attached to the support frame of the carrier, movable between a stored position and a deployed position, and not extending beyond the width of the pallet or skid; and a frame rolling assembly attached to the support frame to transfer the lift over the base surface.

Korean Utility Model Application No. 20-2005-0008045 (2005.03.24.) Korean Patent Application No. 10-2019-0006636 (2019.01.18.) Korean Patent Application No. 10-2012-0100376 (2012.09.11.) Korean Patent Application No. 10-2009-7014711 (2097.12.14.)

However, the conventional lift devices as described above have uneconomical problems due to low productivity due to structural complexity as they implement kinetic energy for lifting loaded objects (cargo) upward through power.

In addition, since driving energy (electricity, fuel) for power must be provided, there is a problem in that there is a limitation on the use space.

The present invention has been proposed to solve the above conventional problems, and an object of the present invention is to move goods from the floor to a raised position during storage and transportation, thereby loading goods It is designed to conveniently perform the work, and as the object to be loaded is elastically stretched and supported, the worker can perform the loading work in an upright posture without bending the back without power, increasing the convenience of the work. It is to provide a level lift intended to improve.

Another object of the present invention is to provide a level lift that is structurally simple and can be manufactured easily and economically, and is not subject to spatial restrictions in use and thus has improved use quality.

The level lift according to the present invention for achieving the object of the present invention as described above includes a base plate provided with a plurality of moving wheels provided to be idling at the bottom; In the level lift comprising; a loading means provided while being stacked on top of the base plate and having a loading plate configured to load an object on the upper surface; The loading means includes: the loading plate; and a support member connected between the base plate and the loading plate and configured to elastically expand and contract the loading plate with respect to the base plate and support the loading plate.

The support member includes a support plate disposed between the base plate and the loading plate; It is formed to be collapsible while connecting between each of the base plate, the support plate, and the support plate and the loading plate, so that the distances between the base plate, the support plate, and the support plate and the loading plate are stretched and adjusted. It is characterized in that it is made including; a plurality of folded bodies to do.

The support member may further include an elastic spring provided to form an elastic force between each of the base plate, the support plate, and the support plate and the loading plate.

In the level lift according to the present invention made as described above, after loading an object on the upper surface of the loading plate, it is moved and transported to a desired place through moving wheels, and at this time, the object is moved from the floor without power through the elastic force of the support member. It is arranged in a raised state at a predetermined position, so that when a worker loads an object into a loading space, the operator conveniently carries out the loading operation by holding the object in an upright posture without bending the waist.

In addition, it is structurally simple to manufacture easily and can be provided economically, as well as not to be subject to spatial limitations in use because elements such as separate wires are not provided, so that the quality of use is improved.

1 is a schematic exploded perspective view showing a level lift according to an embodiment of the present invention;
Figure 2 is a schematic perspective illustration showing a level lift according to the present embodiment.
3 and 4 are schematic examples showing a level lift according to the present embodiment.
Figure 5 is a schematic illustration showing a support member constituting a level lift according to the present embodiment.
6 and 7 are schematic diagrams showing the working state of the level lift according to the present embodiment.
8 is a schematic illustration showing another example of a folded body constituting a level lift according to the present embodiment.

Hereinafter, a level lift according to a preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the examples described in detail below. This embodiment is provided to more completely explain the present invention to those skilled in the art. Therefore, the shapes of elements in the drawings may be exaggerated to emphasize a clearer explanation. It should be noted that in each drawing, the same members are sometimes indicated by the same reference numerals. Detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention are omitted.

1 to 7 are views showing a level lift according to an embodiment of the present invention, in which the level lift 1 according to the present embodiment is elevated from the floor when storing and transporting an object 10. As it is moved in a lifted state, it is particularly applied to enabling the unloading and loading of the object 10 to be conveniently performed.

That is, it is applied to increasing workability by allowing the worker to stably and conveniently carry out loading and unloading work without bending the waist during unloading and loading of the object 10 .

The level lift 1 according to this embodiment includes a base plate 2 provided with a plurality of moving wheels 21 rotatably provided at the bottom; It is provided while being stacked on top of the base plate 2 and includes a loading means having a loading plate 3 configured to load the object 10 on the upper surface.

That is, after easily moving to a desired position such as an unloading position and a loading position through the moving wheels 21 provided on the base plate 2, the object 10 is placed on the upper surface of the loading plate 3 and loaded. Jobs are performed, or loading and unloading work is performed by lifting the loaded objects 10.

At this time. The object 10 can be easily transported to a desired location through the moving wheel 21 .

In the above, the base plate 2 may be formed in a 'plate' shape; The moving wheels 21 are idlingly coupled to the lower corner so that the movement can be performed freely, and the moving wheels 21 are selected by the user among structures to which conventionally known technology is applied. It is preferred that the structure be employed and suitably applied.

In the level lift 1 according to the present embodiment made as described above, the loading means includes: the loading plate 3; A support member 4 connected between the base plate 2 and the loading plate 3 and configured to support the loading plate 3 while elastically expanding and contracting with respect to the base plate 2; including It is done.

That is, the support member 4 elastically expands and contracts between the base plate 2 and the mounting plate 3 and elastically supports it.

Accordingly, the loading plate 3 always forms a state in which it is lifted upward with respect to the base plate 2, so that the loading and unloading work of the object 10 is performed at a position having a predetermined height with respect to the floor. It can be.

Therefore, during unloading and loading of the object 10, the operator can stably perform the work without bending his or her back.

At this time, when the object 10 is placed on the loading plate 3 during the loading and unloading work of the object 10, according to the load of the object 10, it moves downward while resisting against the elastic force of the support member. The loading plate 3 is dropped, and the loading plate 3 is located at a position where the gravity due to the load of the object 10 and the elastic force of the support member 4 maintain an equilibrium state of force.

Accordingly, the object 10 placed on the loading plate 3 has a minimum height, so that a worker can stably perform a loading operation of the object 10 to be performed later without bending the back.

In the above, the loading plate 3 may be formed in a 'plate' shape; Its size and shape are preferably selected by the user and applied appropriately.

In the level lift 1 according to the present embodiment made as described above, the support member 4 includes a support plate 41 disposed between the base plate 2 and the loading plate 3; The base plate 2 and the support plate 41 and the support plate 41 and the loading plate 3 are formed to be folded while connecting each other, so that the base plate 2 and the support plate ( 41) and a plurality of folding bodies 421 configured to adjust the spacing between the support plate 41 and the loading plate 3 by stretching.

That is, while the folding bodies 421 are folded between the base plate 2 and the support plate 41 and between the support plate 41 and the loading plate 3, respectively, the base plate 2 and The support plate 41 and the distance between the support plate 41 and the loading plate 3 are expanded and contracted to approach and separate each other, and as a result, the distance between the base plate 2 and the loading plate 3 is reduced. It can be supported while being stretched.

In the above, the folding body 421 has a length, and each of the other ends are located at the lower and upper portions in a state in which each end is collapsibly coupled through the hinge shaft 43, and each of the loading plate 3 and the above It may be composed of two sets of folds 42 that are rotatably coupled to the support plate 41 and the base plate 2 through fixed shafts 44, respectively.

That is, while the folds 42 are shaft-fixed to the loading plate 3, the support plate 41, and the base plate 2 through respective fixing shafts 44, the base plate 2 ) and the support plate 41, and the support plate 41 and the stacking plate 3 are connected, respectively, while folding movement is performed.

Accordingly, the folding body 421 is folded between the base plate 2 and the support plate 41 and between the support plate 41 and the loading plate 3 through an extension and contraction movement of each of the bases. The plate 2 and the support plate 41 and the support plate 41 and the loading plate 3 are brought close to and separated from each other, and as a result, the distance between the base plate 2 and the loading plate 3 is reduced. It can be supported while being stretched.

At this time, the distance between the base plate 2 and the loading plate 3 is formed while dividing the vertical distance into a plurality through a plurality of the support plate 41 and the folding body 421, and each divided distance In accordance with the folding of each of the folding bodies 421, as they are respectively stretched and relaxed and approached and separated from each other, the proximity and separation states of the loading plate 3 to the base plate 2 depend on the load. As it is made while having structural stability through the dispersion of the work, the stability of the work can be secured.

In the above, the folded body 421 may be formed while forming a '<' shaped pier around the hinge axis 43; As shown in Figure 8, it can be formed while crossing the 'x' shape around the hinge axis 43; It is preferable to be selected by the user and applied appropriately.

In the level lift 1 according to the present embodiment made as described above, the support member 4 includes the base plate 2, the support plate 41, the support plate 41 and the loading plate 3 An elastic spring (S) provided to form an elastic force between each of the;

That is, to elastically support the loading plate 3 between the base plate 2 and the support plate 41 and between the support plate 41 and the loading plate 3 through the elastic spring (S). has been

Accordingly, as each of the elastic springs (S) and the support plates 41 between the base plate 2 and the mounting plate 3 are divided into vertical elastically supported intervals and supported. As each of the elastic springs (S) are respectively stretched and relaxed, elastically support the loading plate (3) to and from the base plate (2) when it is close to and separated from the load of the object (10) elastically It can be supported while distributing.

Therefore, it is possible to perform unloading and loading operations for the object 10 while having structural stability, so that the stability of work can be improved.

In the above, the elastic springs (S) of the support member 4 are installed on the hinge shaft 43 and the fixed shaft 44, and the elastic load for elastically unfolding each of the folds 42 It may be provided to apply.

In the above, the elastic springs (S) of the support member 4 are perpendicular to each other between the base plate 2 and the support plate 41 and the support plate 41 and the loading plate 3. It may be provided to elastically support while extending and contracting.

On the other hand, in the level lift 1 according to the present embodiment, between the base plate 2 and the loading plate 3, a plurality of the support plates 41 are stacked and arranged with a gap; Each of the support plates 41 may be provided while being connected while elastically expanding and contracting the gap through the folding body 421 and the elastic spring (S).

That is, as the plurality of support plates 41 are divided and supported between the base plate 2 and the loading plate 3 at intervals further subdivided. When the loading plate 3 approaches and separates from the base plate 2, it is supported through more subdivided elastic force, and the load of the object 10 is supported through more elastic dispersion, thereby improving structural stability. more can be secured.

In the above, between the base plate 2 and the loading plate 3, two sets of the support plates 41 may be provided; The number is preferably selected by the user and appropriately applied.

In the level lift 1 according to the present embodiment made as described above, the support member 4 is provided while having a length from the upper part of the base plate 2 to the upper side, and each of the support plates 41 A plurality of upward guide rods 45 to be guided while passing through to fit each of the guide holes 6 vertically formed through; Each of the support plates 41 and the base are provided while having a length in the direction from the bottom to the bottom of each of the loading plate 3 and the support plate 41 located on the uppermost side, and located thereunder. It may include; a plurality of downward guide rods 46 to be guided while passing through each of the guide holes 6 vertically formed through the plate 2.

That is, while the base plate 2 and the support plate 41 and the support plate 41 and the loading plate 3 are stretched and relaxed, respectively, the loading plate 3 with respect to the base plate 2 When approaching and separating, the upper guide rods 45 and the lower guide rods 46 are guided while penetrating the respective guide holes 6 fitted to each other.

Accordingly, the base plate 2 , the support plates 41 , and the loading plate 3 are stretched and contracted while forming a vertical upright posture.

Therefore, during the loading and unloading work of the object 10, even when the object 10 is placed in a biased state on the loading plate 3, the loading plate 3 is prevented from being displaced and structurally collapsed, thereby improving the stability of the work. this can be increased.

In the above, the elastic springs (S) are elastically supported while vertically extending and contracting between each of the base plate 2 and the support plate 41 and the support plate 41 and the loading plate 3 'Coil spring' is made; Each of the upper guide rods 45 and the lower guide rods 46 are disposed while penetrating, respectively, so that the elastic springs (S) expand and contract stably without forming a collapsed state such as bending during an extension movement. Can be made to perform exercise.

On the other hand, in each of the base plate 2, the support plate 41 and the loading plate 3, fixing brackets 5 to which the fixing shaft 44 is shaft-installed are respectively provided; Each of the fixing brackets 5 is formed vertically while having a length and is close to each of the fixing brackets 5 facing each other, so that when the parts facing each other contact each other, each of the base plates A gap may be formed between (2) and the support plate 41, the support plates 41 adjacent to each other, and between the support plate 41 and the loading plate 3.

That is, the distance between each of the base plate 2, the support plate 41, and the loading plate 3 may be maintained at a minimum through the fixing brackets 5.

In the above, the vertical length of the fixing brackets (5) can be made of a length to form a gap in which the folded bodies (421) and the elastic springs (S) can be stably positioned, selected by the user. It is desirable that it be applied appropriately.

The effect of the level lift 1 according to the present embodiment made as described above will be described in detail.

First, when the object 10 is not placed on the loading plate 3, a state in which the distance between the base plate 2 and the loading plate 3 is maximally spaced through the elastic spring S is formed. Thus, the loading plate 3 is placed at the highest position relative to the floor.

In addition, after taking out the unloading object 10 from a separate transport means and transport device (not shown) in a state where the level lift 1 according to the present embodiment is moved to the unloading space and positioned, the upper portion of the loading plate 3 When placed in the , the unloading work is completed.

At this time, as the loading plate 3 has a height with respect to the floor, the worker can stably perform loading and unloading work without excessively bending the waist.

In this way, in a state in which the object 10 is unloaded and placed on the loading plate 3, the operator moves the level lift 1 according to the present embodiment to a selected location such as a loading space, and then the loading plate 3 After lifting the object 10 placed in the, it is possible to perform a loading operation of loading and storing in a desired location.

At this time, as the loading plate 3 has a height with respect to the floor, the worker can perform the loading operation stably without excessively bending the waist.

In addition, even if the loading position in which the object 10 is to be stored has a height with respect to the floor, the loading operation is performed after the object 10 is lifted at a position having a height with respect to the floor, which makes the loading operation easier. this can be done

One embodiment of the present invention described above is only exemplary, and those skilled in the art will appreciate that various modifications and equivalent other embodiments are possible therefrom. . Therefore, it will be well understood that the present invention is not limited to the forms mentioned in the detailed description above. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims. It is also to be understood that the present invention includes all modifications, equivalents and alternatives within the spirit and scope of the present invention as defined by the appended claims.

1: Level Lift 10: Stuff
2: base plate 21: moving wheel
3: loading plate 4: support member
41: support plate 42: folded band
421: folded body 43: hinge axis
44: fixed shaft 45: upward guide bar
46: downward guide rod 5: fixed bracket
6: guide hole S: elastic spring

Claims (2)

A base plate equipped with a plurality of moving wheels provided to be idling at the bottom and; In the level lift comprising; a loading means provided while being stacked on top of the base plate and having a loading plate configured to load an object on the upper surface;
The loading means is
the loading plate;
and a support member connected between the base plate and the loading plate and configured to elastically expand and contract the loading plate with respect to the base plate and support the loading plate.
According to claim 1;
The support member is
a support plate disposed between the base plate and the loading plate;
It is formed to be collapsible while connecting between each of the base plate, the support plate, and the support plate and the loading plate, so that the distances between the base plate, the support plate, and the support plate and the loading plate are stretched and adjusted. A plurality of folded bodies to do;
The level lift, characterized in that the support member comprises an elastic spring provided to form an elastic force between each of the base plate and the support plate and the support plate and the loading plate.

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