WO2019235692A1 - Dispositif de levage manuel - Google Patents

Dispositif de levage manuel Download PDF

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Publication number
WO2019235692A1
WO2019235692A1 PCT/KR2018/011174 KR2018011174W WO2019235692A1 WO 2019235692 A1 WO2019235692 A1 WO 2019235692A1 KR 2018011174 W KR2018011174 W KR 2018011174W WO 2019235692 A1 WO2019235692 A1 WO 2019235692A1
Authority
WO
WIPO (PCT)
Prior art keywords
support
cargo
unit
frame
arm
Prior art date
Application number
PCT/KR2018/011174
Other languages
English (en)
Korean (ko)
Inventor
박상욱
Original Assignee
Park Sang Uk
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020180109242A external-priority patent/KR102135249B1/ko
Priority claimed from KR1020180109239A external-priority patent/KR102135211B1/ko
Priority claimed from KR1020180109240A external-priority patent/KR102135248B1/ko
Application filed by Park Sang Uk filed Critical Park Sang Uk
Priority to US16/301,416 priority Critical patent/US20200277174A1/en
Publication of WO2019235692A1 publication Critical patent/WO2019235692A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • B66F9/18—Load gripping or retaining means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/20—Means for actuating or controlling masts, platforms, or forks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/20—Means for actuating or controlling masts, platforms, or forks
    • B66F9/24—Electrical devices or systems

Definitions

  • the present invention relates to a hand lift device, and more particularly to a hand lift device capable of loading a cargo in the form of a box.
  • hand lift devices are for loading and carrying heavy cargo.
  • the hand lift device is simply used to load the load on the loading plate and then lay down at a certain angle and then transport by a wheel to a certain distance, and the method of lifting the loading plate for loading the cargo up and down.
  • the hand lift device has to bend the waist when the worker first loads the cargo on the loading plate down to the floor in the process of loading a plurality of cargo on the loading plate, and the waist while loading the cargo in order
  • There was a problem in the body such as bending or straightening.
  • the work to bend or straighten the waist to move the load.
  • the hand lift device must be laid at an angle to carry a plurality of loaded loads.
  • the elderly such as women, can easily lay or straighten the hand lift device at an angle due to the weight of the load loaded in the hand lift device. There was a problem that was not easy.
  • the prior patent document 1 moves to a stable structure due to the wheel and the climbing assistance unit in the flat land in moving the goods loaded on the hand truck, and in a place where a stepped height is formed, such as a staircase Disclosed is a hand truck capable of stably moving an article up or down by rotational climbing of a climbing unit through internal power.
  • the prior patent document 1 includes a lift unit for moving an article from a high position to a low position or for moving an article at a low position to a high position
  • the disclosed hand truck has a structure It is complex, has a large weight and high manufacturing cost.
  • the prior patent document 2 discloses a hand car having a lift function for providing a motor in the hand car to move forward or backward by power and a lift plate to move up or down.
  • Prior Patent Document 2 has a lift unit for the purpose of moving an article from a high position to a low position, or for moving an article at a low position to a high position, but a heavy article on a loading plate When it is placed, there is no separate structure that can firmly support the chain giving the lift function, there is a limit to the stacking stability.
  • an object of the present invention is to automatically lift the load loading unit to detect the height of the load loaded on the load loading unit so that the load is maintained at a predetermined height
  • the present invention provides a hand lift device that allows a worker to load or lift a cargo without bending it.
  • another object of the present invention is to provide a means for adding a tension to the chain to raise and lower the load loading unit, even when a heavy load load is loaded on the load loading unit by adjusting the tension of the chain to increase the hand stability To provide a lift device.
  • another object of the present invention is to provide a hand lift device that is configured to be detachable cargo loading unit, but by simply configuring the detachable method, to remove from the cumbersome detachable method like the conventional screw coupling method to improve the convenience of the user. will be.
  • the frame portion including a vertical frame, a first sprocket installed on the upper end of the vertical frame, a second sprocket provided on the lower end of the vertical frame; A chain engaged with the first sprocket and the second sprocket; A cargo loading unit connected to the chain so as to be liftable along the vertical frame and configured to load cargo; A power transmission unit providing a driving force to the chain so that the cargo loading unit is lifted up and down; A sensor unit installed so as to be positioned above an area in which the freight loading unit is lifted and lowered in an area formed by the frame unit, and including a proximity sensor to detect a load loaded on the freight loading unit; And a control unit controlling the lifting and lowering of the cargo loading unit by adjusting the driving of the power transmission unit according to the detection signal from the sensor unit.
  • the power transmission unit may include an electric motor for forward and reverse rotation, and the driving shaft of the electric motor may provide a driving force to the rotation shaft of the second sprocket.
  • the cargo loading unit includes a loading member on which cargo is loaded, a lifting member lifting along a guide rail formed on the vertical frame, and a coupling member for coupling the loading member and the lifting member, wherein the chain includes: It is connected to the elevating member, it is possible to transfer the driving force from the power transmission unit to the cargo loading unit through the elevating member.
  • One end of the chain is connected to the upper end of the elevating member, the other end of the chain is connected to the lower end of the elevating member, and at least one of the points where the chain and the elevating member are connected, tension is applied to the chain.
  • Providing chain tensioner may be interposed.
  • the chain tensioner may be formed of a spring member having both ends formed in an annular shape, one end of which is connected to the chain and the other end of which is connected to the elevating member, or a portion of the support panel which is fastened to the elevating member, through the supporting panel. Is exposed to the outside of the support panel is coupled to the chain, the other side is connected to the chain portion accommodated inside the elevating member, and the inner side of the elevating member is interposed between the chain connecting portion and the support panel and the support It may be formed in the form of an elastic structure including a spring member for elastically supporting the chain connecting portion in a state supported by the panel.
  • the elevating member may include at least one protrusion, and the coupling member may include at least one locking portion formed to engage the protrusion.
  • the control unit may control the driving of the power transmission unit to maintain the height of the upper end of the cargo loaded in the cargo loading unit at a predetermined height based on the detection signal from the sensor unit.
  • the control unit in the load mode for driving the power transmission unit to lower the load loading unit, when the load detection signal is received from the sensor unit maintains the drive of the power transfer unit, the load loading unit is raised In the unload mode of driving the power transmission unit, when the cargo detection signal is received from the sensor unit, the lifting of the cargo loading unit may be controlled by stopping the driving of the power transmission unit.
  • the sensor unit may further include a load cell installed in the cargo loading unit and detecting a load of the cargo loaded on the cargo loading unit.
  • a movable support part detachably installed on the frame part to support the frame part and to move the frame part to a preset position.
  • the movable support part may include a frame support structure which forms a slot in which the frame part is accommodated and supports an outer surface of the frame part accommodated in the slot, and is detachably coupled to the frame part; Support panels coupled to both ends of the frame support structure along a longitudinal direction of the frame support structure; A wheel coupled to the support panel and disposed at a rear side of the frame unit and capable of performing a rotational movement in a state of being grounded to the ground; And a fork coupled to the support panel and disposed in front of the frame part, and having a caster at an end thereof for changing a moving direction of the frame part.
  • the support panel is formed of a magnesium material, the fork may be adjustable in the front and rear direction of the frame portion along the surface of the support panel.
  • the wheel is coupled to the support panel is supported, the wheel motor for generating a rotational force; And a wheel body rotatably coupled to the wheel motor and configured to perform a rotational motion through the rotational force transmitted from the wheel motor.
  • the support is supported on the ground to support the frame portion in a vertical direction with respect to the ground; may further include a.
  • the fixed support portion is formed in the form of a flat panel fixed to the ground; And a vertical support frame protruding upward from the upper surface of the fixing panel by a predetermined length in a vertical direction to form a slot for accommodating a portion of the frame portion therein and supporting an outer surface of the frame portion accommodated in the slot.
  • a vertical support frame protruding upward from the upper surface of the fixing panel by a predetermined length in a vertical direction to form a slot for accommodating a portion of the frame portion therein and supporting an outer surface of the frame portion accommodated in the slot.
  • the vertical support frame may simultaneously support both side surfaces and the rear surface of the frame portion accommodated in the slot.
  • the user can stand or sit in a seated state sitting state; may further include.
  • the cargo loading unit the support frame is installed in the frame portion can be elevated;
  • a support arm protruding from an end of the support frame to a predetermined length to form a space for accommodating a cargo therein and facing in the longitudinal direction of the support frame;
  • a gripping blade rotatably installed on the support arm and disposed in a horizontal state in the accommodation space, and rotated at a predetermined angle when the cargo is loaded to spread outward, and then held inward by elastic force to support the outer surface of the cargo. It may include.
  • the support frame the vertical member is installed in the frame portion; A horizontal member disposed below the vertical member in a horizontal state and connected to the support arm to support the support arm; And a reinforcing member connecting the vertical member and the horizontal member.
  • the support arm includes a first arm disposed on one side of the horizontal member in the longitudinal direction of the horizontal member and a second arm disposed on the other side of the horizontal member in the longitudinal direction of the horizontal member,
  • the gripping wing may include a first wing rotatably installed on the first arm and a second wing rotatably installed on the second arm.
  • the first arm and the second arm may be coupled to the horizontal member in a detachable structure, and may be relative in the longitudinal direction of the horizontal member.
  • the support arm is installed on the first arm and the second arm, respectively, to support the first wing and the second wing, and to relatively move the first wing and the second wing so that the first wing and A holding space adjusting unit for adjusting a distance between the second wings; It may further include.
  • the gripping space control unit the guide rail is installed on the upper surface of the support arm; A transfer block installed on the guide rail and movable along the guide rail; A support bracket installed on the transfer block to support the grip blade rotatably; And a driving device installed on an upper surface of the support arm and coupled to the support bracket to move the support bracket.
  • the distance between the first wing and the second wing may be formed to a size smaller than the distance between the outer surface of the load supported on the first wing and the second wing.
  • the grip blades, the shaft portion is rotatably coupled to the support arm;
  • a wing body extending from the shaft to one side and disposed in the accommodation space and having a plurality of inclined guide surfaces for guiding the movement of the cargo when loading the cargo at one side and the other end along the longitudinal direction;
  • an elastic member installed around the shaft to elastically support the wing body and limit the rotation angle of the grip blade.
  • the grip blade may be rotatable at an angle between 0 and 90 degrees.
  • the gripping blades, guide rollers are installed at the end of the wing body to contact the outer surface of the cargo when the load of the load to perform a rotational movement; It may further include.
  • the cargo loading unit, the support portion is installed in the frame portion can be lifted;
  • a drive unit installed in the support unit to extend or contract by performing a linear movement in a horizontal direction;
  • a gripping part rotatably coupled to both ends of the driving part and forming an accommodating space therein for accommodating the cargo, and holding the cargo accommodated in the accommodating space by performing a relative movement in the horizontal direction when the driving part is driven. It can include;
  • a buffer unit is installed on the support part and supports the gripping part in the horizontal direction.
  • the cargo loading unit, the support portion is installed in the frame portion can be lifted;
  • a driving part installed at the support part and connected to an end portion of the gripping part accommodated in the support part, and performing a linear motion to push the end of the gripping part outward or pull inward to adjust the rotation angle of the gripping part. can do.
  • the cargo loading unit, the support portion is installed in the frame portion can be lifted;
  • a rotating part installed in the support part and rotatable in a clockwise or counterclockwise direction;
  • a tongs-shaped gripping portion which is installed in the rotating unit to form an accommodation space therein, pressurizes and supports an outer surface of the cargo accommodated in the accommodation space by spreading outward or retracting inward through rotation;
  • a first angle adjusting unit installed in the rotating part and transmitting rotational force to the gripping part to adjust the rotational angle of the gripping part, and installed on the support part and transmitting rotational force to the rotating part to adjust the rotational angle of the rotating part. It may include; a drive unit including a second angle adjustment unit.
  • the support unit the support member axially coupled to the rotation unit for supporting the rotation unit rotatably;
  • An elevating member installed on the frame portion and capable of elevating;
  • a coupling member connecting the support member and the lifting member.
  • the rotating part may form an accommodation space accommodating the gripping portion and the first angle adjusting unit therein, and rotatably coupled to the supporting member so that the clock is rotated on one surface of the supporting member when the second angle adjusting unit is driven.
  • a bracket rotatable counterclockwise; A driven gear installed between the bracket and the support member; A gear fixing member protruding outward from the bracket to fix the driven gear to an outer surface of the bracket; And a plate provided on an inner surface of the bracket to partition a plurality of spaces inside the bracket.
  • the gripping portion includes a first support arm rotatably installed on one side of the bracket and a second support arm rotatably installed on the other side of the bracket and disposed opposite to the first support arm.
  • the first support arm and the second support arm rotatably installed in the bracket and disposed in the inner space of the bracket;
  • a gripping body coupled to the rotating shaft part and disposed in an outer space of the bracket, and rotated together with the rotating shaft part according to the driving of the first angle adjusting unit to be opened to the outside or to be retracted inward.
  • the first angle control unit is installed inside the bracket to rotate the first support arm and the first support arm and the inside of the bracket is disposed opposite the first arm control unit and rotates the second support arm It includes a second arm control unit, and the second angle adjustment unit is installed on the support member, can transmit the rotational force to the driven gear to rotate the bracket.
  • the first arm control unit and the second arm control unit, the first power transmission gear is installed around the rotary shaft portion rotatably with the rotary shaft portion;
  • a second power transmission gear rotatably installed inside the bracket and transmitting rotational force to the first power transmission gear to rotate the first power transmission gear;
  • a first driving device installed inside the bracket and connected to the second power transmission gear to rotate the second power transmission gear in a clockwise or counterclockwise direction by performing a linear movement.
  • the first drive device the linear actuator is installed inside the bracket, capable of performing a linear movement along the longitudinal direction of the bracket; And a third power transmission gear installed on the linear actuator to engage with the second power transmission gear and linearly move to one side or the other side when the linear actuator is driven to rotate the second power transmission gear.
  • the operator can load the cargo automatically by controlling it through the cargo loading unit without loading the cargo through manual work, a faster amount of work is possible compared to the manual work and thus a greater amount compared to the same time. Can be loaded and the work can be carried out with a small number of personnel, thereby reducing costs.
  • the operator loads or lifts the cargo without bending It can be lifted up and moved, thereby solving the problem of chronic back pain of workers who perform simple repetition of unloading, and improve the working efficiency of workers.
  • the cargo loading unit is configured to be detachable, but by simply configuring the detachable method, it is possible to effectively improve the convenience of the operator by peeling from the cumbersome detachable method like the conventional screw coupling method.
  • the cargo loading unit when loading the cargo in the cargo loading unit is provided with a gripping wing that is pressed to the outer surface of the cargo and opened to the outside and then automatically retracted inward by the elastic force to support the outer surface of the cargo, the operator does not load the cargo by hand
  • the grip blade by simply moving the grip blade to the outer surface of the cargo through the movement of the hand lift device, the cargo can be loaded automatically, greatly reducing the load time and improving workability.
  • a load acting in the vertical direction to the cargo is added to the grip blade supporting the step of the cargo, so that the grip blade is further inward toward the outer surface of the cargo It can be retracted to strengthen the supporting force on the cargo and to fix the cargo more stably.
  • the cargo loading unit is provided with a tong-like gripper that can hold the cargo by adjusting the receiving space through the relative movement, it is possible to easily hold and load the cargo of various sizes and shapes.
  • the cargo loading unit is provided with a rotary part that can be rotated in a clockwise or counterclockwise direction, so that the cargo can be held at various positions, thereby increasing the usability and efficiently loading cargoes of various shapes.
  • the cargo loading unit is provided with a driving unit to which a linear actuator is applied to control the holding unit, so that the load can be stably loaded by finely adjusting the pressing force suitable for the cargo according to the shape of the cargo, the material of the cargo, or the hardness of the cargo. have.
  • the loaded cargo can be stably transported and unloaded at various locations.
  • FIG. 1 is a perspective view showing a hand lift device according to an embodiment of the present invention.
  • Figure 2 is a schematic side view showing a hand lift device according to an embodiment of the present invention.
  • Figure 3 is a side view schematically showing the internal structure of the hand lift device according to an embodiment of the present invention.
  • Figure 4 is an enlarged perspective view of one section of the hand lift device according to an embodiment of the present invention.
  • Figure 5 is an exploded perspective view showing a state in which the moving support portion is separated from the frame portion of the hand lift device according to an embodiment of the present invention.
  • Figure 6 is a side view showing a state in which the fixed support is installed in the frame portion of the hand lift device according to an embodiment of the present invention.
  • FIG. 7 is a side view schematically showing a state in which a boarding unit is installed in a hand lift apparatus according to an exemplary embodiment of the present invention.
  • FIG. 8 is a perspective view showing a hand lift device according to another embodiment of the present invention.
  • FIG. 9 is a side view schematically showing a hand lift device according to another embodiment of the present invention.
  • FIG. 10 is a side view schematically showing a driving method of a hand lift apparatus according to another embodiment of the present invention.
  • FIG. 11 is a perspective view illustrating a part of a hand lift apparatus to which a cargo loading unit is applied according to another embodiment.
  • FIG. 12 is a perspective view illustrating a hand lift apparatus to which a cargo loading unit is applied according to another embodiment.
  • FIG. 13 is a perspective view illustrating a load loading unit shown in FIG. 12.
  • FIG. 14 is a schematic cross-sectional view showing a state in which a first wing is installed on a first arm of a cargo loading unit according to another embodiment.
  • FIG. 15 is a plan view schematically illustrating a state in which a first arm and a second arm are installed in a horizontal member of a cargo loading unit according to another embodiment.
  • 16 is a view schematically showing a state in which the first wing of the cargo loading unit according to another embodiment is installed on the first arm through the gripping space adjusting unit.
  • 17 is a plan view schematically illustrating a state in which cargo is not loaded on a cargo loading unit according to another embodiment.
  • FIG. 18 is a view schematically showing a process in which cargo is loaded in a cargo loading unit according to another embodiment.
  • 19 is a view schematically showing a state in which a guide roller is installed on the wing body of the cargo loading unit according to another embodiment.
  • FIG. 20 is a perspective view illustrating a hand lift apparatus to which a cargo loading unit according to another embodiment is applied.
  • FIG. 21 is a view schematically showing the cargo loading unit shown in FIG. 20.
  • 22 is a view schematically showing a modified embodiment of the cargo loading unit according to another embodiment.
  • FIG. 23 is a view schematically showing another modified embodiment of the cargo loading unit according to another embodiment.
  • FIG. 24 is a view schematically showing a first angle adjustment unit of the cargo loading unit of FIG.
  • 25 is a view schematically showing another form of the chain tensioner.
  • the terms “comprises” or “having” are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described on the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.
  • a component When a component is said to be “connected” or “connected” to another component, it may be directly connected to or connected to that other component, but it may be understood that another component may be present in the middle. Should be.
  • a component is said to be “directly connected” or “directly connected” to another component, it should be understood that there is no other component in between.
  • module or “unit” for the components used in the present specification performs at least one function or operation.
  • the module or unit may perform a function or an operation by hardware, software, or a combination of hardware and software.
  • a plurality of “modules” or a plurality of “parts” other than “modules” or “parts” to be executed in specific hardware or executed in at least one processor may be integrated into at least one module.
  • Singular expressions include plural expressions unless the context clearly indicates otherwise.
  • FIG. 1 is a perspective view showing a hand lift device according to an embodiment of the present invention
  • Figure 2 is a schematic side view showing a hand lift device according to an embodiment of the present invention
  • Figure 3 is a hand lift according to an embodiment of the present invention
  • Figure 4 is a side view schematically showing the internal structure of the device
  • Figure 4 is an enlarged perspective view showing a section of the hand lift device according to an embodiment of the present invention.
  • the hand lift device 2 (hereinafter referred to as the hand lift device 2) according to the embodiment of the present invention is a frame portion 21, the frame portion 21 Chain 22 disposed along the longitudinal direction of the load, the cargo loading unit 1 connected to the chain 22 and configured to load the cargo, the power transmission unit 24 for providing a driving force to the chain 22, cargo loading unit And a control unit 26 for controlling the driving of the power transmission unit 24 according to a sensor 25 for sensing a load (not shown) loaded in (1) and a detection signal from the sensor unit 25.
  • the frame portion 21 includes a vertical frame 211, a first sprocket 212 and a second sprocket 213.
  • a guide rail 214 is formed inside the vertical frame 211, and the first sprocket 212 is installed above the vertical frame 211, and the second sprocket 213 is installed below the vertical frame 211. do.
  • the chain 22 is installed to engage the first sprocket 212 and the second sprocket 213.
  • the first sprocket 212 and the second sprocket 113 perform the same function as the pulley for supporting the chain 22 at the top and bottom of the vertical frame 211, respectively.
  • the first sprocket 212 and the second sprocket 213 may be installed on the vertical frame 211 so as to be symmetrically positioned at positions facing each other.
  • the chain 22 receives the driving force from the power transmission unit 24 to be described later, and rotates in engagement with the first sprocket 212 and the second sprocket 213.
  • Cargo loading unit 1 is configured to be elevated along the guide rail 214 is connected to the chain 22 and formed in the vertical frame 211. Then, the chain 22 is connected to the rear surface of the cargo loading unit 1, it is configured to load the cargo to the front of the cargo loading unit (1).
  • the cargo loading unit 1 is coupled to the loading member 16, the chain 22, the load is loaded a guide rail 214 formed on the vertical frame 211 during the movement of the chain 22 It may include a lifting member 14, and the coupling member 15 for connecting the lifting member 16 and the lifting member 14 according to the lifting.
  • the loading member 16 may include a vertical panel 16a coupled to the elevating member 14 by the coupling member 15 and a horizontal panel 16b formed in a flat shape to load the cargo.
  • the vertical panel 16a and the horizontal panel 16b may be formed to have a substantially right angle.
  • the elevating member 14 is formed with at least one protrusion 14a
  • the coupling member 15 is formed with at least one catching portion 15a formed to be caught by the protrusion 14a, so that the protrusion 14a and The catching portion 15a may be coupled by a male and female fitting method. Accordingly, unlike the conventional bolt-nut coupling method in which the present hand lift apparatus 2 connects a plurality of structures to each other using a separate fastening tool, the hand lift apparatus 2 loads the cargo in the hand lift apparatus 2 without a separate tool.
  • the unit 1 can be quickly detached, and furthermore, the cargo loading unit 1 can be firmly fixed to the hand lift device 2.
  • the cargo loading unit 1 is not limited to those shown in FIGS. 1 and 4, and may be applied in various shapes. This will be described later.
  • the power transmission unit 24 includes an electric motor 241.
  • the electric motor 241 may preferably be a brushless motor, and various other known motors, such as a stepping motor and a servo motor, may be applied to the electric motor 241.
  • the drive shaft of the electric motor 241 is engaged with the second sprocket 213 to rotate and provides a driving force to the chain 22.
  • the chain 22 is sequentially geared to the first sprocket 212 and the second sprocket 213, the driving force generated from the electric motor 241 is transmitted to the chain 22 through the second sprocket 213. .
  • the chain 22 is connected to the elevating member 14, and transfers the driving force from the power transmission unit 24 to the cargo loading unit 1 through the elevating member 14.
  • one end of the chain 22 may be connected to the upper end of the elevating member 14, and the other end of the chain 22 may be connected to the lower end of the elevating member 14.
  • a chain tensioner 221 providing tension to the chain may be interposed at at least one of the points at which the chain 22 and the elevating member 14 are connected.
  • Chain tensioner 221 is a spring member having its own elasticity, both ends may be formed in a ring shape.
  • the chain tensioner 221 has one end connected to the chain 22 and the other end connected to the elevating member 14 to apply tension to the chain 22 while mediating the connection between the chain 22 and the elevating member 14. Can be.
  • the chain tensioner 221 functions to maintain the tension of the chain 22 above a predetermined level. When a heavy load is loaded on the cargo loading unit 1, the chain 22 may be temporarily sag. At this time, the chain tensioner 221 may compensate for the sagging of the chain 22 by using its own elastic force. have.
  • the chain tensioner 221 may be formed in the form of an elastic structure coupled to the elevating member 14 to generate a predetermined elastic force to provide a tension to the chain 22.
  • the chain tensioner 221 penetrates through the support panel 2211 and the support panel 2211 which are fastened to the elevating member 14 through a plurality of fastening means, and a part of the chain tensioner 221 is outside the support panel 2211. It is exposed and coupled to the chain 22, the other side is the chain connection portion 2212 accommodated inside the elevating member 14, and the chain connection portion 2212 and the support panel 2211 accommodated inside the elevating member 14 A spring member 2213 may be interposed therebetween and elastically support the chain connection part 2212 in a state supported by the support panel 2211.
  • the chain connection part 2212 may be formed in a structure of a nut part which is fastened to one side of the bolt part and the bolt part connected to the chain 22 and is elastically supported by the spring member 2213. Accordingly, the tension transmitted to the chain 22 can be adjusted by tightening or releasing the bolt portion to which the chain 22 is connected.
  • the spring member 2213 is interposed between the chain connecting portion 2212 and the support panel 2211 to exert a reaction force in the opposite direction while being supported by the support panel 2211, so that when more than the weight limit loads In addition, it can be prevented from stretching indefinitely to prevent the chain from sagging.
  • chain tensioner 221 is not necessarily limited thereto, and may be changed and applied to various structures and shapes as long as the chain tensioner 221 may compensate for the deflection of the chain 22.
  • the hand lift apparatus 2 provides a means for applying tension to the chains 22 and 32 for lifting and lowering the cargo loading unit 1, so that when the heavy cargo is loaded on the cargo loading unit 1, Edo by adjusting the tension of the chain 22 can increase the loading stability.
  • a configuration of a speed reducer (not shown) for reducing the rotational force of the electric motor 241 may be further added.
  • the rotational force of the electric motor 241 is transmitted to the chain 22 via the reducer.
  • a worm (not shown) and a worm gear (not shown) may be included between the drive shaft of the electric motor 241 and the rotation shaft of the second sprocket 213.
  • the sensor unit 25 detects the cargo loaded in the cargo loading unit (1).
  • the sensor unit 25 is configured to include a proximity sensor 251 for detecting the cargo loaded on the cargo loading unit 1, and a sensor support 152 for supporting the proximity sensor 251.
  • the proximity sensor 251 is a sensor for detecting an object when an object (cargo in the present invention) approaches, and various known proximity sensors such as a hall sensor and an optical sensor may be used.
  • the proximity sensor 251 is guided to move along the longitudinal direction of the vertical frame 211 in the range of both ends of the sensor guide 252. At this time, even when the proximity sensor 251 is located at the bottom of the sensor guide 252, the proximity sensor 251 is preferably installed so as to be located on the upper side of the lifting range of the load unit (1).
  • the sensor guide 252 may be configured in the form of a bracket to be detachable at any point of the vertical frame 211.
  • the proximity sensor 251 may move along the slot formed in the sensor guide 252, and may be fixed by various attachment means such as a magnet.
  • the sensor unit 25 may further include a load cell 253.
  • the load cell 253 is installed in the cargo loading unit 1, and detects the load of the cargo loaded in the cargo loading unit 1 to transmit a signal thereof to the controller 26 to be described later.
  • the control unit 26 controls the lifting of the cargo loading unit 1 based on the cargo detection signal from the sensor unit 25. Accordingly, the hand lift device 2 automatically adjusts the height of the cargo loading unit 1 according to the height of the loaded cargo or the load of the cargo.
  • control unit 26 controls the lifting of the cargo loading unit 1 by adjusting the driving of the power transmission unit 24 according to the detection signal transmitted from the proximity sensor 251 of the sensor unit 25.
  • control unit 26 drives the power transmission unit 24 to maintain the height of the upper end of the cargo loaded on the cargo loading unit 1 at a predetermined height based on the cargo detection signal from the sensor unit 25. To control.
  • control unit 26 controls each configuration so that the hand lift device 2 can operate in a 'load mode' for loading cargo or an 'unload mode' for loading cargo. You can send a command.
  • 'Load mode' is an automatic operation mode when the worker loads the load into the load unit (1).
  • a worker usually loads one cargo and then loads the next cargo on top of the cargo.
  • the worker usually loads the next cargo by raising the height of the previously loaded cargo. do. At this time, a large load is applied to the waist of the worker.
  • the hand lift device 2 is a cargo loading unit 1 as much as the height of the previously loaded cargo, so that when the worker loads a plurality of cargo to maintain a constant height of lifting the cargo
  • the drive of the power transmission unit 24 is controlled to fall.
  • the control unit 26 maintains the driving of the power transmission unit 24 when the load detection signal is received from the sensor unit 25, and if the reception of the load detection signal from the sensor unit 25 is stopped power transmission unit ( 24) Stop driving.
  • 'Unloading mode' is an automatic operation mode when the operator unloads the load from the load unit (1).
  • the worker In case of unloading, the worker usually unloads one cargo and then unloads the next cargo located at the bottom of the cargo.In order to unload the next cargo, the lower load is usually lowered by the height of the previously unloaded cargo. Will be unloaded. At this time, a large load is applied to the waist of the worker.
  • the hand lift device 2 of the present invention is to load the cargo load unit by the height of the previously unloaded cargo in order to be able to maintain a constant height of lifting the cargo when the operator unloads a plurality of cargo (
  • the driving of the power transmission unit 24 is controlled so that 1) rises.
  • the control unit 26 maintains the driving of the power transmission unit 24 when the load detection signal is not received from the sensor unit 25, and the power transmission unit (if the load detection signal is received from the sensor unit 25). 24) Stop driving.
  • the hand lift device 2 is provided with a proximity sensor 251 for detecting the height of the cargo loaded in the cargo loading unit 1, through the operation of the above-described automatic operation mode (loading mode, unloading mode) By maintaining the load cargo at a predetermined height, it is possible for the operator to load or unload the cargo without bending. In this way, the hand lift device 2 can solve the problem of the chronic back pain of the workers who perform the simple repetition of the conventional loading and unloading, and can contribute significantly to the working efficiency of the workers. It is meaningful.
  • control unit 26 controls the lifting and lowering of the cargo loading unit 1 by adjusting the driving of the power transmission unit 24 according to the detection signal transmitted from the load cell 253 of the sensor unit 25.
  • the control unit 26 compares the load detection signal transmitted from the sensor unit 25, that is, the signal about the load of the load loaded on the load loading unit 1 with the preset reference signal. It controls the driving of the transmission unit 24, thereby maintaining the height of the upper end of the cargo loaded in the cargo loading unit (1) to a predetermined height.
  • the control unit 26 receives the load detection signal received from the sensor unit 25 in advance in the first reference signal. Is compared in real time, and the drive of the power transmission unit 24 is maintained until the cargo detection signal reaches the first reference signal.
  • the first reference signal may be set as a signal corresponding to the total load of the cargo to be loaded.
  • the control unit 26 may compare the cargo detection signal received from the sensor unit 25 with the preset second reference signal. The real-time comparison is made, and the drive of the power transmission unit 24 is maintained until the cargo detection signal reaches the second reference signal.
  • the second reference signal may be set as a signal corresponding to a value of zero.
  • the present hand lift device 2 may include a control unit 27 configured to allow an operator to operate the operation of the hand lift device 2.
  • the control unit 27 includes a power switch for turning on / off the operating power of the electric motor 241, a joystick for raising and lowering the cargo loading unit 1 to an arbitrary position, and the present hand lift device 2 And a manual control switch for setting to operate in a manual mode, and an automatic control switch for automatically controlling the power transmission unit 24 based on a detection signal from the sensor unit 25.
  • the control unit 27 is not limited thereto, and may further include various control means for controlling the present hand lift device 2.
  • the hand lift device 2 includes a battery 216 for supplying power.
  • the battery 216 may be housed in the lower side of the hand lift device 2 together with the control unit 26.
  • the hand lift device 2 of the present invention may further include a moving support 28.
  • FIG 5 is an exploded perspective view showing a state in which the moving support portion 28 is separated from the frame portion 21 of the present hand lift device 2.
  • the moving support part 28 may be detachably installed on the frame part 21 to support the frame part 21 and to move the frame part 21 to a preset position.
  • the moving support 28 may include a frame support structure 281, a pair of support panels 282, a pair of wheels 283, and a pair of forks 284.
  • the frame support structure 281 forms a slot 281a that can accommodate a part of the frame portion 21 therein to support the outer surface of the frame portion 21 accommodated in the slot 281a, and is detachable to the frame portion 21. Possibly combined.
  • the frame support structure 281 may be detachably coupled to the frame portion 21 using separate fastening means such as bolts and nuts.
  • a pair of support panels 282 are respectively coupled to both ends of the frame support structure 281 along the longitudinal direction of the frame support structure 281, a pair of wheels 283 and a pair of forks 284 to be described later ) May support a pair of wheels 283 and a pair of forks 284.
  • the pair of support panels 282 may be coupled to both ends of the frame support structure 281 using separate fastening means such as bolts and nuts, and the pair of support panels 282 may be fastened to each other.
  • a plurality of fastening holes may be formed for this purpose.
  • the pair of support panels 282 may be formed of a nonferrous metal material.
  • the pair of support panels 282 may be formed of a magnesium material having a predetermined thickness.
  • the pair of support panels 282 is not necessarily limited to the material thereof, and may be formed of magnesium alloy containing aluminum or magnesium as a main component, as necessary.
  • the pair of wheels 283 are coupled to the support panel 282 to be disposed at the rear of the frame portion 21, and perform a rotational movement in a state of being grounded to the ground, so that the frame portion 21 in which the cargo is loaded in advance. You can move to the set position.
  • the pair of wheels 283 may be formed as a motor-integrated structure capable of generating power by itself to perform a rotational movement.
  • the pair of wheels 283 are coupled to and supported by the support panel 282, are rotatably coupled to the wheel motor 2831 and the wheel motor 2831 that generate rotational force, and the wheel motor 2831. It may include a wheel body (2832) to perform a rotational movement through the rotational force transmitted from).
  • the wheel motor 2831 is connected to the battery 216 is supplied with power, and electrically connected to the control unit 26 and the control unit 27 is rotated through the operation of the control unit 27, the rotational speed, etc. This can be controlled.
  • the hand lift apparatus 2 is capable of moving in the front, rear, left, right, and up and down directions through the cargo loading unit 1 and the moving support part 28, thereby placing the loaded cargo in various positions. Can be transported and unloaded stably.
  • the pair of forks 284 may be coupled to the support panel 282 to be disposed in front of the frame portion 21, and may include a caster 285 at the end thereof to change the moving direction of the frame portion 21. .
  • the operator can separate the cargo loading unit 1 from the frame portion 21 and load the cargo directly on the fork 284.
  • the movement position can be easily changed in a desired direction through the caster 285.
  • the caster 285 may be rotatably coupled to the pair of forks 284 on the ground, and may be formed in the form of a wheel that performs a rotational movement along the ground.
  • the pair of forks 284 may be positioned in the front and rear directions of the frame portion 21 along the surface of the support panel 282.
  • the operator can stably distribute the load acting on the frame portion 21 by adjusting the length of the fork 284 according to the weight and size of the cargo to be loaded.
  • a plurality of fastening holes may be formed in the support panel 282 along the longitudinal direction, and a pair of fastening holes corresponding to at least one of the plurality of fastening holes may be formed in the pair of forks 284. Therefore, the pair of forks 284 may be disposed at positions corresponding to any one of the plurality of fastening holes described above, and then fixed to the support panel 282 through separate fastening means such as bolts and nuts.
  • the hand lift apparatus 2 may further include a handle bar 215.
  • the handlebar 215 is installed at the rear of the frame portion 21, the position can be adjusted along the longitudinal direction of the frame portion 21, as well as the height adjustment in a fixed state at any position of the frame portion 21 This may be possible.
  • the operator can grip the handlebar 215 stably in various positions, as well as the hand lift device 2 using the handlebar 215 in a state in which a pair of wheels 283 are driven.
  • Can steer
  • the handle bar 215 may be further provided with auxiliary control means (not shown) capable of controlling the present hand lift device 2. Through this, the user can easily operate the hand lift device 2 while holding the handle bar 215.
  • the hand lift device 2 may further include a fixed support 29.
  • FIG. 6 is a side view showing a state in which the fixed support part 29 is installed in the frame part 21 of the hand lift apparatus 2.
  • the fixed support part 29 may be detachably installed on the frame part 21 and supported on the ground to support the frame part 21 in a vertical direction with respect to the ground.
  • the fixed support part 29 may include a fixed panel 291 and a vertical support frame 292.
  • the fixed panel 291 is formed in a flat plate shape and installed on the ground, and supports the vertical support frame 292 to be described later to distribute the load acting in the vertical direction from the vertical support frame 292 to the ground.
  • the vertical support frame 292 protrudes upward from the upper surface of the fixed panel 291 by a predetermined length in a vertical direction to form a slot 292a that can accommodate a part of the frame portion 21 therein, and the slot 292a
  • the vertical support frame 292 may be configured to simultaneously support both side surfaces and the rear surface of the frame portion 21 accommodated in the slot 292a.
  • the hand lift device 2 may further include a boarding unit 40.
  • FIG. 7 is a side view schematically showing a state in which the boarding unit 40 is installed in the hand lift device 2.
  • the boarding unit 40 may be installed at the rear of the frame unit 21 and may have a structure in which the user can stand or sit in a seated state.
  • the boarding unit 40 may be formed in the form of a footrest that the user can board in a standing state, or as shown in FIG. 7 (b), without a user. It may be formed in the form of a chair capable of riding. In addition, in order to prevent the hand lift device 2 from tilting to the rear side when the user boards, the lower side of the boarding portion 40 is supported on the ground to distribute the load acting on the boarding portion 40 to the ground. Casters (not shown) may be further provided.
  • the boarding unit 40 is not necessarily limited thereto, and may be changed and applied to various structures and shapes.
  • the hand lift apparatus 2 is capable of automatically loading cargo through the cargo loading unit 1 without loading cargo by manual labor, so that the work can be performed faster than manual labor at the same time. More cargo can be loaded and fewer people can save costs.
  • each component for explaining the hand lift device 3 according to another embodiment of the present invention uses the same reference numerals as those used to describe the hand lift device 2 for the convenience of description, and may be identical or duplicated. The description will be omitted.
  • FIG. 8 is a perspective view showing a hand lift device 3 according to another embodiment of the present invention
  • FIG. 9 is a side view schematically showing a hand lift device 3 according to another embodiment of the present invention
  • the hand lift device 3 may include a frame part 31, a chain 32 and a chain 32 arranged along the length direction of the frame part 31.
  • Cargo loading unit (1) connected to the load and configured to load the load, the power transmission unit 34 for providing a driving force to the chain 32, the sensor unit 35 for detecting the load loaded on the cargo loading unit (1)
  • a control unit 36 for controlling the driving of the power transmission unit 34 according to the detection signal from the sensor unit 35.
  • the power transmission unit 34 includes an electric motor 341, a rotation shaft 342 meshing with a drive shaft of the electric motor 341, and a third sprocket 343 connected to the rotation shaft 342. .
  • the chain 32 may be sequentially geared to the first sprocket 312, the third sprocket 343 and the second sprocket 313. Accordingly, when a driving force is generated from the electric motor 341, the driving force is transmitted to the chain 32 through the third sprocket 343.
  • the third sprocket 343 is disposed between the first sprocket 312 and the second sprocket 313, and is disposed so as to deviate from the straight path formed by the first sprocket 312 and the second sprocket 313.
  • the chain 32 connecting the first sprocket 312, the third sprocket 343, and the second sprocket 313 is arranged to have a '-' shape in the vicinity of the third sprocket 343.
  • the power transmission unit 34 further includes a fourth sprocket 344 and a reinforcement chain 345.
  • the fourth sprocket 344 is disposed to deviate from the straight path formed by the first sprocket 312 and the second sprocket 313. In addition, the fourth sprocket 344 is disposed to be spaced apart from the third sprocket 343.
  • the reinforcement chain 345 is installed to surround the third sprocket 343 and the fourth sprocket 344 and is gear-coupled to the third sprocket 343 and the fourth sprocket 344.
  • the reinforcement chain 345 is disposed to face different directions in the chain 32 and the third sprocket 343, and is connected to the chain 32 by the driving force of the electric motor 341 transmitted through the third sprocket 343. And the reinforcement chain 345 rotates forward and backward.
  • the fourth sprocket 344 and the reinforcement chain 345 may complement the driving stability in the process in which the chain 32 receives the driving force by the third sprocket 343. Specifically, by adding the fourth sprocket 344, which is a separate shaft, to the power transmission unit 34, where the third sprocket 343 is the shaft, and the chain 32 rotates, from the third sprocket 343, the chain ( 32) can be prevented from slipping in the opposite direction to the rotation direction.
  • the power transmission unit 34 may further include a fifth sprocket 346 and a sixth sprocket 347.
  • the fifth sprocket 346 is disposed at any point between the first sprocket 312 and the third sprocket 343, and the sixth sprocket 347 is between the third sprocket 343 and the second sprocket 313. It can be placed at any point of. In this case, the fifth sprocket 346 and the sixth sprocket 347 may press the chain 32 in a direction in which the chain 32 surrounds the third sprocket 343.
  • the fifth sprocket 346 and the sixth sprocket 347 provide a path for the chain 32 to move and may add additional tension to the chain 32 to prevent the chain 32 from loosening. That is, the fifth sprocket 346 and the sixth sprocket 347 function to maintain the tension of the chain 32 above a predetermined level.
  • the hand lift device 3 may further include a chain tensioner (not shown) provided separately.
  • the chain tensioner may compensate for the deflection of the chain 32 by using its own elastic force.
  • the chain tensioner may be, for example, a spring member having both ends connected to the fifth sprocket 346 and the sixth sprocket 347 or a structure capable of generating an elastic force.
  • the spring member may press the chain 32 using its own elastic force generated between the fifth sprocket 346 and the sixth sprocket 347.
  • FIG. 11 is a perspective view illustrating a part of a hand lift apparatus to which a cargo loading unit is applied according to another embodiment.
  • the cargo loading unit 1 may include an extension part 11 and a hook part 12 positioned at an end of the extension part 11.
  • the cargo loading unit 1 may be formed in a form of lifting the cargo by hanging a portion of the cargo on the hook portion (12).
  • the cargo loading unit 1 may be formed in a form capable of supporting the edge of the cargo through a plurality of rotatable wings.
  • FIG. 12 is a perspective view showing a hand lift device to which a cargo loading unit is applied according to another embodiment
  • FIG. 13 is a perspective view of the cargo loading unit shown in FIG. 12.
  • the cargo loading unit 1 may include a support frame 11.
  • the support frame 11 is installed in the hand lift apparatus 2 and can be lifted and lowered through the hand lift apparatus 2, and may be formed in the form of a plurality of structures.
  • the support frame 11 is disposed in a horizontal state below the vertical member 111 and the vertical member 111 installed in the hand lift apparatus 2, and is connected to the support arm 12 to be described later. It may include a horizontal member 112 for supporting the support arm 12, and a reinforcing member 113 for connecting the vertical member 111 and the horizontal member 112.
  • the cargo loading unit 1 may include a support arm 12.
  • the support arm 12 protrudes in a predetermined length toward the forward direction of the hand lift device 2 viewed from the end of the support frame 11, and may form a space for accommodating the cargo inside.
  • the support arm 12 may be disposed to face in the longitudinal direction of the support frame 11, that is, in the longitudinal direction of the horizontal member 112.
  • the support arm 12 is a horizontal member along the longitudinal direction of the first arm 12a and the horizontal member 112 disposed on one side of the horizontal member 112 along the longitudinal direction of the horizontal member 112. It may include a second arm 12b disposed on the other side of the (112).
  • FIG. 14 is a schematic cross-sectional view showing a state in which a first wing is installed on a first arm of a cargo loading unit according to another embodiment.
  • the first arm 12a and the second arm 12b may have a hollow tubular structure.
  • a support structure 121 may be formed on upper surfaces of the first arm 12a and the second arm 12b on which the shaft portion 131 and the elastic member 133 of the gripping blade 13 to be described later are installed.
  • the support structure 121 is formed in a tunnel structure through which the inside is penetrated, and is formed at the middle or the end of the support structure 121 along the width direction (X-axis direction) of each of the arms 12a and 12b on the upper surface of each of the arms 12a and 12b. Can be.
  • X-axis direction width direction
  • the grip wings 13 are provided on the side surfaces of the arms 12a and 12b disposed to face each other.
  • a support piece 127 may be further provided to support the lower surface of the bottom surface.
  • first arm 12a and the second arm 12b may be coupled to the horizontal member 112 in a detachable structure, and may be relative in the longitudinal direction of the horizontal member 112.
  • FIG. 15 is a plan view schematically illustrating a state in which a first arm and a second arm are installed in a horizontal member of a cargo loading unit according to another embodiment.
  • the first arm 12a and the second arm 12b may include a first structure 122 and a second structure 123.
  • the first structure 122 is disposed on the outside of the horizontal member 112 and exposed to the external space, respectively, the support structure 121 is provided with the grip wing 13 and the elastic member 133 is installed on one surface Can be formed.
  • the second structure 123 is inserted into the first structure 122 to support the load of the first structure 122, a part of which is accommodated in the inner space of the horizontal member 112, the first arm 12a And when the driving device 125 of the second arm 12b is driven, it may be movable along the guide groove 112a.
  • the length of a portion of the second structure 123 inserted into the first structure 122 corresponds to the entire length of the first structure 122 or is 1/2 of the total length of the first structure 122. It can be formed to the above length.
  • first arm 12a and the second arm 12b are disposed on the upper and lower sides of the rack gear 112b and generate a rotational force to move along the rack gear 112b.
  • the pinion gear 124 and the plurality of pinion gear 124 may be provided with a drive device 125 for transmitting a rotational force.
  • the driving device 125 of the first arm 12a and the driving device 125 of the second arm 12b may be controlled at the same time, and generate a rotational force in different directions when driving the first arm 12a.
  • relative movement of the second arm 12b may be controlled at the same time, and generate a rotational force in different directions when driving the first arm 12a.
  • the driving device 125 is not necessarily limited thereto, and may be modified and applied in various forms within a condition capable of implementing the relative movement of the first arm 12a and the second arm 12b.
  • the respective drive devices 125 are rotated in different directions and the rack size is reduced.
  • the first arm 12a and the second arm 12b may move relative to the fish 112b, thereby adjusting the size of the accommodation space.
  • the horizontal member 112 is formed in a tubular structure of the hollow shape can be accommodated a portion of the first arm 12a and the second arm 12b inside, one side of the horizontal member 112 in the longitudinal direction Accordingly, a guide groove 112a may be formed in contact with the outer surfaces of the first arm 12a and the second arm 12b to guide the movement of the first arm 12a and the second arm 12b.
  • the inner side of the horizontal member 112 is engaged with the pinion gear 124 provided in the first arm 12a and the second arm 12b, respectively, and a rack gear for guiding the movement of the pinion gear 124 ( 112b) may be provided.
  • 16 is a view schematically showing a state in which the first wing of the cargo loading unit according to another embodiment is installed on the first arm through the gripping space adjusting unit.
  • the support arms 12 are respectively installed on the first arm 12a and the second arm 12b to support the first wing 13a and the second wing 13b, which will be described later, and the first arm. It may further include a plurality of gripping space control unit 126 to adjust the distance between the first wing (13a) and the second wing (13b) by relatively moving the wing (13a) and the second wing (13b). .
  • the holding space adjusting unit 126 may include a guide rail 126a installed on the upper surface of the support arm 12 and a transfer block 126b installed on the guide rail 126a and movable along the guide rail 126a. have.
  • the gripping space adjusting unit 126 may include a support bracket 126c installed on the transfer block 126b to rotatably support the gripping blade 13.
  • the support structure 121 is formed in the upper central portion of the support bracket 126c rotatably coupled to the shaft portion 131 of the gripping wing 13, and the gripping wing rotatably coupled to the support structure 121 ( 13 may be horizontally supported by being supported on the surface of the support bracket 126c when the cargo is not loaded.
  • the holding space adjusting unit 126 is installed on the upper surface of the support arm 12, may be coupled to the support bracket 126c may include a drive device (126d) for moving the support bracket 126c.
  • the driving device 126d may be applied as a linear movable hydraulic device, but is not limited thereto and may be changed and applied in various forms.
  • the cargo loading unit 1 may include a grip blade (13).
  • the grip blade 13 is rotatably installed in the support arm 12 may be disposed in a horizontal state in the receiving space.
  • the holding blade 13 is supported on the surface of each arm (12a, 12b) when the load is not loaded, disposed in a horizontal state in the receiving space, or the support piece (installed on the side of each arm (12a, 12b) ( It is supported on the surface of the 127 may be disposed in a horizontal state in the receiving space.
  • the grip blade 13 may include a first wing 13a rotatably installed on the first arm 12a and a second wing 13b rotatably installed on the second arm 12b. .
  • FIG. 17 is a plan view schematically illustrating a state in which cargo is not loaded in a cargo loading unit according to another embodiment
  • FIG. 18 is a view schematically illustrating a process in which cargo is loaded in a cargo loading unit according to another embodiment. .
  • the distance D between the first wing 12a and the second wing 12b is supported by the first wing 12a and the second wing 12b. It may be formed in a size smaller than the distance (D ') between the outer surface of the cargo.
  • the grip blade 13 may include a shaft portion 131, a wing body 132 and an elastic member 133.
  • Shaft portion 131 is rotatably coupled to the support structure 121 formed on the upper surface of the support arm 12, it may be formed along the longitudinal direction at one end of the wing body (132).
  • the wing body 132 extends to one side from the shaft portion 131 and is disposed in the accommodation space, and may rotate in the clockwise or counterclockwise direction together with the shaft portion 131 when the shaft portion 131 is rotated.
  • a plurality of inclined guide surfaces 132a may be formed at one side and the other end of the wing body 132 along the longitudinal direction to guide the movement of the cargo when the cargo is loaded.
  • the plurality of inclined guide surface 132a is formed in a structure in which the width of the cross section becomes narrower in the direction in which the cargo enters the accommodation space when the cargo is loaded, so that the cargo does not get caught on the outer surface of the cargo and naturally loads the cargo. Guide to the receiving space.
  • the elastic member 133 may be installed around the shaft portion 131 to elastically support the wing body 132.
  • the elastic member 133 may limit the rotation angle of the grip blade (13).
  • the grip blade 13 supported by the elastic member 133 may be rotated at an angle between 0 and 90 degrees.
  • the elastic member 133 is installed around the first support wire supporting the support arm 12, the second support wire supporting the wing body 132 and the shaft portion 131, the first support wire and the second It can be applied as a return spring including a coil-shaped body connecting the support wire.
  • the grip wing 13 is rotated at a predetermined angle when loading the cargo (cargo) is opened to the outside and then retracted inward by the elastic force to support the outer surface of the cargo.
  • first vane 13a and the second vane 13b which are arranged horizontally on the surface of each arm 12a, 12b, allow the cargo to move through the forward movement of the hand lift device 2.
  • the slide moves along the outer surface, it is pressed against the outer surface of the cargo and spread outward.
  • the first wing 13a and the second wing 13b which are spread outwardly are supported on the outer surface of the cargo to maintain a state that is spread outwardly, while the cargo is placed between the first wing 13a and the second wing 13b.
  • the inner side of the cargo is retracted by the elastic force of the elastic member 133 to support the outer surface of the cargo.
  • the grip wing 13 supports the step A1 provided on the upper edge of the cargo to lift the cargo.
  • a load acting in the vertical direction to the cargo is added to the grip blade 13 supporting the stepped portion A1 of the cargo. Therefore, the grip wing 13 is further retracted inward toward the outer surface of the cargo due to the load acting on the cargo in a vertical direction when the cargo rises, thereby strengthening the supporting force acting on the cargo to more securely fix the cargo You can.
  • the cargo that can be loaded in the cargo loading unit 1 may be formed in the form of a box that can accommodate the cargo inside the upper opening.
  • a bent portion A2 protruding a predetermined length from the outer surface to form the stepped portion A1 may be formed on the upper edge of the cargo.
  • the bent portion (A2) may be formed in plural on the outer surface of the cargo spaced apart by a predetermined interval along the height of the cargo, between the plurality of bent portions (A2) accommodating grooves (accommodating grooves (3) A3) can be formed.
  • the grip wing 13 may further include a guide roller 134.
  • 19 is a view schematically showing a state in which a guide roller is installed on the wing body of the cargo loading unit according to another embodiment.
  • the guide roller 134 may be installed at the end of the wing body 132 to be in contact with the outer surface of the cargo when the cargo is loaded to perform a rotational movement.
  • the cargo loading unit 2 is installed in plurality in the support arm 12 along the longitudinal direction of the support arm 12, is connected to the grip wing 13, the grip wing 13 is set in advance when driving It may further include an angle adjusting means (not shown) for rotating at an angle.
  • the angle adjusting means is installed on the shaft portion 131 of the grip wing 13, the first gear portion for rotating the shaft portion 131, the inner side of the support arm 12 is engaged with the first gear portion, A second gear portion for transmitting rotational force to the first gear portion, and installed inside the support arm 12 and connected to the second gear portion, and generating power in accordance with a control command transmitted from the hand lift apparatus 2; It may include a power unit for transmitting a rotational force to the two gear unit.
  • the hand lift device (2) is held by the outer surface of the cargo when the load on the cargo loading unit (1) is opened to the outside and then gripped by the elastic force to the inside of the gripping wing 13 to support the outer surface of the cargo
  • the cargo loading time can be automatically loaded only by simply moving the gripping wing 13 to the outer surface of the cargo through the movement of the hand lift device (2) Can be greatly shortened and workability can be improved.
  • the grip blade (13) is further retracted inward toward the outer surface of the cargo to strengthen the supporting force acting on the cargo, it is possible to more securely fix the cargo.
  • the cargo loading unit 1 may be formed in a form capable of gripping the outer surface of the cargo through the holding means of the forceps.
  • FIG. 20 is a perspective view illustrating a hand lift apparatus to which a cargo loading unit is applied according to another embodiment
  • FIG. 21 is a plan view schematically illustrating the cargo loading unit shown in FIG. 20.
  • the cargo loading unit 1 may include a support 11.
  • the support 11 may be installed in the hand lift apparatus 2 and may be lifted and formed in the form of a plurality of structures that may be coupled to each other.
  • the support part 11 may include a support member 111 on which the driving part 14 to be described later is installed.
  • the support member 111 may be formed in a structure having a cross-sectional shape of 'c' to form an accommodation space in which the grip 13 and the drive 14 may be accommodated.
  • a support structure may be further formed inside the support member 111 to stably fix the driving unit 14.
  • the end of the support member 111 facing the receiving space (space) may be formed in a structure projecting a predetermined length toward the front to support a portion of the cargo when the cargo is disposed in the receiving space.
  • the support 11 may include a lifting member 112 installed in the hand lift apparatus 2 and a coupling member 113 connecting the support member 111 and the lifting member 112 to be liftable.
  • the elevating member 112 and the coupling member 113 may have a protrusion and a groove corresponding to each other to be coupled by the fitting method of the male and female.
  • the cargo loading unit 1 may include a drive unit (14).
  • the driving unit 14 is installed on the support 11 and is connected to an end of the grip 13 received in the support 11, and may be extended or contracted by performing a linear movement in the horizontal direction. Accordingly, the driving unit 14 may adjust the size of the accommodation space by pushing the grip portion 13 connected to both ends to the outside or pulled inward.
  • the drive unit 14 is provided with a single-acting linear actuator capable of extending or contracting in a linear direction along the horizontal direction, so that both ends thereof are respectively connected to the respective support arms 13a and 13b of the grip 13. Can be.
  • the driving unit 14 extends or contracts by performing a linear movement in the horizontal direction, thereby relatively moving the respective support arms 13a and 13b coupled to both ends in the horizontal direction, thereby supporting each of the support arms 13a and 13b. It is possible to adjust the size of the receiving space formed inside of) or to grasp the outer surface of the cargo accommodated in the receiving space.
  • the driving unit 14 is not necessarily limited to the linear actuator, and may be changed and applied to various configurations within the conditions capable of performing the same function.
  • the cargo loading unit 1 may include a grip 13.
  • the gripping portion 13 is formed in the shape of a tong and rotatably coupled to both ends of the driving portion 14, and may form a space for accommodating cargo therein.
  • the gripper 13 may grip the cargo accommodated in the accommodation space by performing a relative motion in the horizontal direction when the driving unit 14 is driven. That is, the gripping part 13 performs relative movement through the driving part 14 to adjust the size of the accommodation space according to the size of the cargo to be loaded, to accommodate the cargo in the accommodation space, and to cover the outer surface of the cargo accommodated in the accommodation space.
  • the cargo can be held by pressing.
  • the gripping portion 13 holding the cargo may be rotated at a predetermined angle around the coupling point with the drive unit 14 to correspond to the outer surface of the held cargo.
  • the gripping portion 13 is a first support arm 13a rotatably installed on one side of the driving unit 14 and a first support arm 13a rotatably installed on the other side of the driving unit 14.
  • the second support arm 13b may be disposed to face the first support arm 13a and perform a relative motion with respect to the first support arm 13a.
  • first support arm 13a and the second support arm 13b are rotatably installed at the end of the driving unit 14, respectively, and the rotation shaft unit 131 disposed in the internal space of the support unit 11, and the rotation shaft. It may include a gripping body 132 that is connected to the portion 131 to hold the cargo.
  • the gripping body 132 is coupled to the rotary shaft 131, one side may be disposed in the outer space of the support 11, the other side may be disposed in the inner space of the support (11).
  • the gripping body 132 may include a rotary blade 1321 and a gripping member 1322.
  • the rotary blades 1321 are coupled to the rotary shaft portion 131 and rotatable together with the rotary shaft portion 131, and may be provided in plural along the axial direction of the rotary shaft portion 131.
  • the holding member 1322 is attached to the inner surface of the rotary blade 1321 provided in plurality, and can be in close contact with the outer surface of the cargo when loading the cargo to support the cargo.
  • a plurality of gripping surfaces may be formed in the gripping member 1322.
  • the holding member 1322 is formed in an arc shape facing outward along the horizontal direction (X-axis direction) and extends from the holding surface S1 for supporting the outer surface of the cargo, and the holding surface S1.
  • a departure preventing surface (S2) for supporting the end of the cargo.
  • the space between the plurality of holding surfaces S1 may be larger than the space between the plurality of separation preventing surfaces S2.
  • the plurality of gripping surfaces formed on the gripping member 1322 are not necessarily limited thereto, and may be applied in the opposite case or may be changed into various shapes within the conditions capable of performing the same function.
  • a plurality of through holes may be formed in the gripping body 132 to reduce the weight of the gripping body 132.
  • one surface of the gripping member 1322 in contact with the cargo may be coated or attached with a material having a large surface resistance, or a protrusion may be further formed to more stably hold the cargo when loading the cargo.
  • the cargo loading unit 1 may further include a buffer unit (15).
  • the buffer part 15 is installed at both ends of the support part 11 along the longitudinal direction of the support part 11, and one end is connected to the support arms 13a and 13b of the grip part 13, respectively, and dug in the horizontal direction.
  • the branch 13 can be supported.
  • the shock absorber 15 may be installed as a shock absorber including a cylinder filled with a buffer such as gas therein and a rod configured to linearly move along an axial direction to transfer a load to the buffer.
  • the buffer unit 15 is not necessarily limited thereto, and may be changed and applied to various configurations within the conditions capable of performing the same function.
  • the cargo loading unit 1 may be formed in a different form than the above.
  • 22 is a view schematically showing a modified embodiment of the cargo loading unit according to another embodiment.
  • the cargo loading unit 1 may include a support 11.
  • the support part 11 is installed in the hand lift apparatus 2 and can be lifted and formed in the form of a plurality of structures that can be coupled to each other.
  • the support part 11 may include a support member 111.
  • the support member 111 may be provided with a driving unit 14 to be described later, and the holding unit 13 to be described later may be rotatably coupled.
  • the support member 111 may be formed in a structure having a cross-sectional shape of 'c' to form an accommodation space in which the grip 13 and the drive 14 may be accommodated.
  • the support member 111 may be provided with a plurality of coupling holes to which the grip 13 is rotatably coupled.
  • the support 11 may include a lifting member 112 installed in the hand lift apparatus 2 and a coupling member 113 connecting the support member 111 and the lifting member 112 to be liftable.
  • the elevating member 112 and the coupling member 113 may have a protrusion and a groove corresponding to each other to be coupled by the fitting method of the male and female.
  • the cargo loading unit 1 may include a grip 13.
  • the gripping portion 13 is formed in the shape of a tong and rotatably installed on the support portion 11, and may form a receiving space for accommodating cargo therein.
  • the gripping portion 13 is connected to the driving unit 14 to be described later, in accordance with the driving of the driving unit 14 to rotate outwardly, or to rotate inwardly. Accordingly, the gripping portion 13 may adjust the size of the accommodation space according to the size and shape of the cargo to be loaded, accommodate the cargo in the accommodation space, and press the outer surface of the cargo accommodated in the accommodation space to hold the cargo. .
  • the gripping portion 13 is a first support arm 13a rotatably installed on one side of the support portion 11, and the first support arm 13a rotatably installed on the other side of the support portion 11. It may include a second support arm (13b) disposed opposite to.
  • the first support arm 13a and the second support arm 13b may perform relative movement through the driving unit 14 to be described later, and may be rotated at a predetermined angle.
  • the first support arm 13a and the second support arm 13b may be rotated at an angle between 0 and 180 degrees.
  • first support arm 13a and the second support arm 13b are rotatably installed on the support part 11, respectively, and are provided with a rotation shaft part 131 and a rotation shaft part disposed in an inner space of the support part 11. It may include a gripping body 132 that is connected to the 131 can hold the cargo.
  • the holding body 132 is coupled to the rotary shaft 131, one side is disposed in the outer space of the support 11, the other side is disposed in the inner space of the support 11 can be coupled to the drive unit (14). Accordingly, the gripping body 132 may rotate together with the rotation shaft 131 in accordance with the driving of the driving unit 14 to open to the outside, or to hold the outer surface of the cargo while pulling inward.
  • the gripping body 132 may include a rotary blade 1321 and a gripping member 1322.
  • Rotating blade 1321 is coupled to the rotating shaft portion 131 is rotatable with the rotating shaft portion 131, provided in plurality in the axial direction of the rotating shaft portion 131, a portion is accommodated inside the support portion (11) It can be coupled to the angle adjuster (14).
  • one end of the driving unit 14 may be coupled to a part of the rotary blade 1321 accommodated inside the support unit 11, and a slot in which one end of the driving unit 14 may move when the driving unit 14 is driven may be formed.
  • the rotary blade 1321 is not necessarily coupled to the driving unit 14 through the structure thereof, and may be connected to the driving unit 14 through various structures within a condition capable of performing the same function.
  • the holding member 1322 is attached to the inner surface of the rotary blade 1321 provided in plurality, and can be in close contact with the outer surface of the cargo when loading the cargo to support the cargo.
  • a plurality of gripping surfaces may be formed in the gripping member 1322.
  • the holding member 1322 is formed in an arc shape facing outward along the horizontal direction (X-axis direction) and extends from the holding surface S1 for supporting the outer surface of the cargo, and the holding surface S1.
  • a departure preventing surface (S2) for supporting the end of the cargo.
  • the space between the plurality of holding surfaces S1 may be larger than the space between the plurality of separation preventing surfaces S2.
  • the plurality of gripping surfaces formed on the gripping member 1322 are not necessarily limited thereto, and may be applied in the opposite case or may be changed into various shapes within the conditions capable of performing the same function.
  • a plurality of through holes may be formed in the gripping body 132 to reduce the weight of the gripping body 132.
  • one surface of the gripping member 1322 in contact with the cargo may be coated or attached with a material having a large surface resistance, or a protrusion may be further formed to more stably hold the cargo when loading the cargo.
  • the cargo loading unit 1 may include a drive unit (14).
  • the driving unit 14 is connected to the end of the gripping portion 13 installed in the supporting portion 11 and accommodated in the supporting portion 11, and performs a linear motion to push the end of the gripping portion 13 outward or pull inwardly.
  • the rotation angle of the grip 13 can be adjusted.
  • the driving part 14 is connected to both supporting arms 13a and 13b of the holding part 13 and pulls the ends of both supporting arms 13a and 13b of the holding part 13 inward through a linear motion.
  • a linear actuator that pushes outward.
  • the linear actuator is a linear motor installed in the inner center of the support portion 11, and is installed in the linear motor to extend or contract in both directions of the linear motor along the X axis direction when the linear motor is driven to perform a linear motion, It may include a linear shaft coupled to both support arms (13a, 13b) of the gripping portion (13).
  • the linear actuator is not necessarily limited thereto, and may be changed and applied to various configurations within the conditions capable of performing the same function.
  • FIG. 23 is a view schematically showing another modified embodiment of a cargo loading unit according to another embodiment
  • FIG. 24 is a view schematically showing a first angle adjusting unit of the cargo loading unit of FIG. 23.
  • the cargo loading unit 1 may include a support 11.
  • the support 11 may be installed in the hand lift apparatus 2 and may be lifted and formed in the form of a plurality of structures that may be coupled to each other.
  • the support 11 may include a support member 111 that is axially coupled to the rotating part 12 to be described later to support the rotating part 12 to be rotatable.
  • the support member 111 may include a panel portion 111a, a shaft portion 111b, and a bearing portion 111c.
  • the panel 111a may be installed at the coupling member 113 and may have a plate shape having a predetermined thickness.
  • the panel portion 111a may be formed in a vertical symmetrical structure in which the width of the cross section gradually decreases toward the center portion in the vertical direction.
  • the panel 111a is not limited thereto and may be changed and applied in various shapes.
  • the shaft portion 111b may be formed to protrude from a central portion of the panel portion 111a to a predetermined length.
  • the shaft portion 111b may be integrally formed with the panel portion 111a or may be coupled to the panel portion 111a through a fastening means.
  • the bearing part 111c may be installed around the shaft part 111b to support the rotating part 12 to be described later, and to distribute an axial load applied from the rotating part 12 when the rotating part 12 is rotated.
  • the bearing portion 111c may be configured to include a ball for performing rolling motion between the shell and the endothelium, the cage for supporting the ball, and the like.
  • the support 11 may include a lifting member 112 installed in the hand lift apparatus 2 and a coupling member 113 connecting the support member 111 and the lifting member 112 to be liftable.
  • the elevating member 112 and the coupling member 113 may have a protrusion and a groove corresponding to each other to be coupled by the fitting method of the male and female.
  • the cargo loading unit 1 may include a rotating part (12).
  • the rotating part 12 may be installed in the support part 11, and may be rotated in a clockwise or counterclockwise direction through the driving of the driving part 14 to be described later, and may be rotatable at a predetermined angle.
  • the rotating part 12 may include a bracket 121, a driven gear 122, a gear fixing member 123, and a diaphragm 124.
  • the bracket 121 may be formed in a structure having a cross-sectional shape of 'c' to form an accommodation space that can accommodate the first angle adjusting unit 141 of the gripping portion 13 and the driving portion 14 to be described later. And, the bracket 121 is coupled to the shaft portion 111b of the support member 111, and is connected to the driven gear 122 to be described later when driving the second drive unit 142 to transfer the rotational force to the driven gear 122 It may be rotatable clockwise or counterclockwise on one surface of the panel 111a. For example, the bracket 121 is rotatable at an angle between 0 and 360 degrees with the driven gear 122, and the bracket 121 may be formed with a plurality of coupling holes to which the grip portion 13 to be described later is coupled.
  • the end of the bracket 121 facing the receiving space (space) may be formed in a structure protruding a predetermined length toward the front to support a portion of the cargo when the cargo is disposed in the receiving space.
  • bracket 121 may be formed in a stretchable structure along the longitudinal direction (X-axis direction).
  • the bracket 121 forms an outer shape, and is provided with a driven gear 122 to be described later on one side, and an outer portion (not shown) rotatably installed on the bearing portion 111c, and inside the outer portion. It may include an inner portion (not shown) provided and linearly movable in the longitudinal direction (X-axis direction) along the inner surface of the outer portion.
  • the inner gripping portion 13 and the driving unit 14 to be described later is provided, and between the outer portion and the inner portion may be provided with a power transmission means (not shown) installed in the outer portion to linearly move the inner portion. have.
  • the bracket 121 can be variably adjusted in the longitudinal direction (X-axis direction) by a predetermined length in accordance with the transmitted control command, or can be variably adjusted to the size of the receiving space formed inside the gripping portion 13. In this way, more various sizes of cargo can be loaded.
  • the driven gear 122 is disposed between the bracket 121 and the panel portion 111a and installed around the bearing portion 111c and may rotate together with the bracket 121 when a rotational force is transmitted.
  • the driven gear 122 is rotated by receiving a rotational force from the second angle adjustment unit 142 of the drive unit 14 to be described later, fixed to one surface of the bracket 121 through the gear fixing member 123 to be described later May be placed in a state.
  • the gear fixing member 123 protrudes outward from the outer surface of the bracket 121 to be coupled with the driven gear 122, and through this, the driven gear 122 may be fixed to the outer surface of the bracket 121.
  • the gear fixing member 123 is formed in a tubular structure in which a stepped portion is formed and a bearing portion 111c is accommodated therein, and is coupled to an inner surface of the driven gear 122 to thereby connect the driven gear 122. It can be supported in a fixed state on the outer surface of the bracket 121, as well as to prevent the departure of the driven gear 122.
  • the gear fixing member 123 is not limited to the shape thereof, and may be changed and applied to various shapes within the conditions capable of implementing the same function.
  • the diaphragm 124 may be disposed at an inner central portion of the bracket 121 and may protrude to a predetermined length from an inner surface of the bracket 121. Through this, the diaphragm 124 partitions the inner space of the bracket 121 into a plurality, as well as to support the inner central portion of the bracket 121 formed in the 'c' shape to reinforce the rigidity of the bracket 121. .
  • the cargo loading unit 1 may include a grip 13.
  • the gripping portion 13 is formed in the shape of a tong and rotatably installed on the rotating portion 12, and forms a receiving space for accommodating the cargo inside.
  • the gripping portion 13 is connected to the driving unit 14 to be described later, by the rotational force transmitted from the driving unit 14, and rotates to the outside, or rotates to the inside and retracted. Accordingly, the gripping portion 13 may adjust the size of the accommodation space according to the size and shape of the cargo to be loaded, accommodate the cargo in the accommodation space, and press the outer surface of the cargo accommodated in the accommodation space to support the cargo. .
  • the grip 13 is a first support arm 13a rotatably installed on one side of the bracket 121, and the first support arm 13a rotatably installed on the other side of the bracket 121. It may include a second support arm (13b) disposed opposite to.
  • the first support arm 13a and the second support arm 13b may perform relative movement through the driving unit 14 to be described later, and may be rotated at a predetermined angle.
  • the first support arm 13a and the second support arm 13b may be rotated at an angle between 0 and 180 degrees.
  • first support arm 13a and the second support arm 13b are rotatably installed in the bracket 121, respectively, and the rotation shaft portion 131 and the rotation shaft portion (131) disposed in the inner space of the bracket 121 ( It may include a gripping body 132 that is connected to the 131 can hold the cargo.
  • the gripping body 132 is coupled to the rotating shaft portion 131 is disposed in the outer space of the bracket 121, and rotates together with the rotating shaft portion 131 in accordance with the driving of the first angle adjustment unit 141 is opened to the outside It can retract inward and grasp the outside of the cargo.
  • the gripping body 132 may include a rotary blade 1321 and a gripping member 1322.
  • the rotary blades 1321 are provided in plural along the axial direction of the rotary shaft portion 131, and are integrally coupled to the rotary shaft portion 131 to be clockwise or counterclockwise together with the rotary shaft portion 131 when the driving unit 14 is driven. Can rotate.
  • the holding member 1322 is attached to the inner surface of the rotary blade 1321 provided in plurality, and can be in close contact with the outer surface of the cargo when loading the cargo to support the cargo.
  • a plurality of gripping surfaces may be formed in the gripping member 1322.
  • the holding member 1322 is formed in an arc shape facing outward along the horizontal direction (X-axis direction) and extends from the holding surface S1 for supporting the outer surface of the cargo, and the holding surface S1.
  • a departure preventing surface (S2) for supporting the end of the cargo.
  • the space between the plurality of holding surfaces S1 may be larger than the space between the plurality of separation preventing surfaces S2.
  • the plurality of gripping surfaces formed on the gripping member 1322 are not necessarily limited thereto, and may be applied in the opposite case or may be changed into various shapes within the conditions capable of performing the same function.
  • a plurality of through holes may be formed in the gripping body 132 to reduce the weight of the gripping body 132.
  • one surface of the gripping member 1322 in contact with the cargo may be coated or attached with a material having a large surface resistance, or a protrusion may be further formed to more stably hold the cargo when loading the cargo.
  • the holding body 132 may be formed of a multi-joint structure.
  • the holding body 132 is a plurality of nodes, a link member for connecting the plurality of nodes with each other, and a plurality of nodes are installed on the power to adjust the size between the plurality of nodes through a control command Means may be included.
  • the gripping main body 132 can carry a joint motion to load the cargo of various sizes and appearances, it is possible to grip the outer surface of the cargo more stably.
  • the gripping body 132 is installed inside the bracket 121, it may be provided in plurality in the vertical direction (Z-axis direction) can be driven individually.
  • the plurality of gripping bodies 132 can stably hold the cargo of non-uniform appearance at a plurality of positions through individual driving.
  • the cargo loading unit 1 may include a drive unit (14).
  • the driving unit 14 is installed on the support unit 11 and the rotating unit 12 and transmits rotational force to the rotating unit 12 and the holding unit 13 to adjust the rotation angle of the rotating unit 12 and the holding unit 13. .
  • the driving unit 14 may include a first angle adjusting unit 141 and a second angle adjusting unit 142.
  • the first angle control unit 141 is installed inside the bracket 121 to rotate the first support arm 13a and the first arm control unit 141a and the bracket 121 to be installed inside the first arm control unit ( A second arm control unit 141b disposed opposite to 141a and rotating the second support arm 13b may be included.
  • the first arm control unit 141a and the second arm control unit 141b may include a first power transmission gear 1411, a second power transmission gear 1412, and a first driving device 1413.
  • the first power transmission gear 1411 may be installed around the rotation shaft 131 to be rotatable with the rotation shaft 131.
  • the second power transmission gear 1412 is rotatably installed inside the bracket 121 to engage with the first power transmission gear 1411 and the third power transmission gear 1413b to be described later, and the first driving device 1413.
  • the first power transmission gear 1411 may be rotated by being rotated at the same time as the driving of the c) and transmitting the rotational force to the first power transmission gear 1411.
  • the first driving device 1413 is installed inside the bracket 121 and connected to the second power transmission gear 1412, and performs a linear motion to rotate the second power transmission gear 1412 in a clockwise or counterclockwise direction. You can.
  • the first driving device 1413 may include a linear actuator 1413a and a third power transmission gear 1413b.
  • the linear actuator 1413a may be installed inside the bracket 121 and may perform linear movement along the longitudinal direction of the bracket 121.
  • the linear actuator 1413a is installed on a linear motor, a linear motor, rotates, a linear shaft having a spiral groove formed on an outer surface thereof, and a linear shaft installed on the linear shaft, linearly moving when the linear shaft rotates, and has a third power on one surface thereof. It may include a transfer block on which the transmission gear (1413b) is installed.
  • the linear actuator 1413a is not necessarily limited thereto, and may be changed and applied to various configurations within the conditions capable of performing the same function.
  • the third power transmission gear 1413b is installed in the linear actuator 1413a and meshes with the second power transmission gear 1412, and is linearly moved to one side or the other side when the linear actuator 1413a is driven, thereby causing the second power transmission gear. 1412 may be rotated.
  • the third power transmission gear 1413b may be applied to a rack gear.
  • the second angle adjustment unit 142 may be installed on the support member 111 and transmit the rotational force to the driven gear 122 to rotate the bracket 121.
  • the second angle adjustment unit 142 is connected to the second driving unit 1421 and the second driving unit 1421, which are installed and fixed to the support member 111, and are engaged with the driven gear 122. It may include a drive gear 1422 for rotating the driven gear 122 by generating a rotational force when driving the second drive device (1421).
  • the hand lift device 2 includes a tong-shaped gripping portion 13 capable of gripping cargo by adjusting a receiving space through relative movement in the cargo loading unit 1, thereby carrying cargoes of various sizes and shapes. It can be easily gripped and loaded.
  • the rotary part 12 that can be rotated in a clockwise or counterclockwise direction allows the cargo to be held at various positions, thereby increasing the usability and efficiently loading the cargo of various shapes.
  • the hand lift apparatus according to the present embodiment can be used throughout the logistics system for transporting and unloading goods.

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  • Engineering & Computer Science (AREA)
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  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

Un mode de réalisation de la présente invention concerne un dispositif de levage manuel, comprenant : une portion de cadre comprenant un cadre vertical, un premier pignon installé sur l'extrémité supérieure du cadre vertical, et un deuxième pignon installé sur l'extrémité inférieure du cadre vertical ; une chaîne installée de manière à venir en prise avec le premier pignon et le deuxième pignon ; une unité de chargement de cargaison reliée à la chaîne, disposée de manière à pouvoir se déplacer vers le haut/vers le bas le long du cadre vertical, et conçue de telle sorte que la cargaison est chargée sur celle-ci ; une portion de transfert de puissance destinée à fournir à la chaîne une puissance motrice de sorte que l'unité de chargement de cargaison se déplace vers le haut/vers le bas ; une portion de capteur installée de manière à être positionnée au-dessus de la plage dans laquelle l'unité de chargement de cargaison se déplace vers le haut/vers le bas, parmi la zone formée par la portion de cadre, la portion de capteur comprenant un capteur de proximité de façon à détecter une cargaison chargée sur l'unité de chargement de cargaison ; et une portion de commande destinée à régler l'excitation de la portion de transfert de puissance en fonction d'un signal de détection provenant de la portion de capteur, commandant ainsi le mouvement vers le haut/vers le bas de l'unité de chargement de cargaison. Selon un mode de réalisation de la présente invention, des opérateurs peuvent charger automatiquement une cargaison tout commandant celle-ci par le biais de l'unité de chargement de cargaison, au lieu de charger une cargaison par des opérations manuelles, ce qui permet d'accomplir des opérations plus rapidement que dans le cas des opérations manuelles, de charger une plus grande quantité de cargaison durant la même période, et de réduire le coût car les opérations peuvent être gérées par un nombre de personnes plus petit.
PCT/KR2018/011174 2018-06-07 2018-09-20 Dispositif de levage manuel WO2019235692A1 (fr)

Priority Applications (1)

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US16/301,416 US20200277174A1 (en) 2018-06-07 2018-09-20 Hand lift device

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KR20180065351 2018-06-07
KR10-2018-0065351 2018-06-07
KR20180075337 2018-06-29
KR10-2018-0075337 2018-06-29
KR10-2018-0075822 2018-06-29
KR20180075822 2018-06-29
KR10-2018-0109242 2018-09-12
KR1020180109242A KR102135249B1 (ko) 2018-06-29 2018-09-12 화물 적재유닛 및 이를 포함하는 핸드 리프트 장치
KR1020180109239A KR102135211B1 (ko) 2018-06-07 2018-09-12 핸드 리프트 장치
KR10-2018-0109240 2018-09-12
KR10-2018-0109239 2018-09-12
KR1020180109240A KR102135248B1 (ko) 2018-06-29 2018-09-12 화물 적재유닛 및 이를 포함하는 핸드 리프트 장치

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JPH0524795A (ja) * 1991-07-26 1993-02-02 Daifuku Co Ltd 昇降装置
JPH05270798A (ja) * 1992-03-26 1993-10-19 Toyota Autom Loom Works Ltd ドラムクランプ
JP2004009926A (ja) * 2002-06-10 2004-01-15 Atex Co Ltd リフト付運搬車
JP2005089020A (ja) * 2003-09-12 2005-04-07 Atex Co Ltd 昇降機付搬送装置
JP2008156039A (ja) * 2006-12-22 2008-07-10 Honda Motor Co Ltd ハンドリフター
JP2012201432A (ja) * 2011-03-24 2012-10-22 Toyota Industries Corp 把持装置
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US11603655B2 (en) * 2018-07-11 2023-03-14 Innovatech Systems, Llc Clamp attachment for boom of telescopic handler and method of assembling and placing decking material on a building using the clamp attachment

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