KR102750258B1 - Conveyor for air cargo transport with 4-way heli-roll - Google Patents

Abstract

The present invention relates to an air cargo transport conveyor equipped with a four-way heli-roll.
According to one embodiment of the present invention, in configuring an air cargo transport conveyor, the conveyor comprises: a plurality of power roller beds which are installed spaced apart from each other on the floor of a work area and transport air cargo introduced through an inlet on one side to an outlet on the other side; a heli-roll conveyor which is provided with three inlets and one outlet on four sides and is installed on the floor of a work area between any two adjacent power roller beds among the power roller beds and between up/down roll beds, and air cargo transported through one inlet by the power roller beds is transported straight toward the outlet on the other side, and air cargo transported through any one of the lateral inlets provided on both sides is automatically rotated 90 degrees clockwise or counterclockwise to transport it toward the outlet; an up/down roll bed which is installed on the floor of a work area on the side of at least one inlet among the lateral inlets of the heli-roll conveyor; and a main control panel that performs overall control functions for driving the power roller beds, the heli-roll conveyor, and the up/down roll beds.

Description

{Conveyor for air cargo transport with 4-way heli-roll}

The present invention relates to an air cargo transport conveyor equipped with a 4-way heli-roll, and more specifically, to an air cargo transport conveyor that packages various types of air cargo using a loading vessel including a pallet or a container and automatically transports the same to a cargo transport vehicle or aircraft, wherein a 4-way heli-roll conveyor having three inlets and one outlet is installed between power roller beds for inlet and discharge, so that when air cargo is fed through an inlet that is in the same line as the outlet among the three inlets, it is transported in a straight line, and when air cargo is fed through one of the two lateral inlets (left or right), the direction of the air cargo is automatically switched on its upper surface toward the outlet (i.e., the air cargo is rotated 90 degrees clockwise or counterclockwise) so as to be transported.

In addition, the present invention relates to an air cargo transport conveyor equipped with a 4-way heli-roll, which selectively installs an up/down roll bed on the floor of a workplace on the side of a lateral inlet among the inlets of the 4-way heli-roll conveyor, and when air cargo transported by a forklift, a hand jack, a dolly, etc. is transferred from the floor of the workplace to the up/down roll bed, it is raised to the upper surface of the 4-way heli-roll conveyor, and then automatically transported from the up/down roll bed to the upper surface of the 4-way heli-roll conveyor.

Airport baggage transfer conveyor systems, which are typically installed at airports, are equipped with transfer conveyors that load passengers' baggage at the airport's check-in counter desk when departing or supply baggage to a carousel that changes the direction of baggage transfer when arriving at the airport.

Also, on board aircraft for passenger transport, passengers carry some of their baggage on board, while larger and heavier baggage is transported in the cargo hold.

The latter baggage in the above is transported to the aircraft by a conveyor or tow tractor, and there is a transfer conveyor capable of transporting the baggage to the door of the aircraft cargo hold.

Of course, upon entry, baggage loaded in the aircraft cargo hold is transported to the airport's baggage storage warehouse or a location where passengers can retrieve their baggage by the aforementioned transfer conveyor or tow tractor.

In addition, the baggage claim area upon entry is equipped with a conveyor belt that supplies baggage to a carousel that rotates the baggage, and a conveyor belt that is positioned at a point that connects to two or more transfer routes.

Meanwhile, the containers for moving air cargo at the airport include pallets or containers, and a dolly or turntable dolly is used as a device for transporting the containers.

These loading containers are moved to the air cargo packing sites, where various cargoes are loaded and secured, and then moved to the cargo transfer conveyor system installed at the packing work site using forklifts or hand jacks, and after loading, they are transferred to the air cargo discharge side, and then loaded onto trailers or tow tractors to be transported to aircraft or logistics warehouses.

Of course, the air cargo loaded onto the aircraft and transported is also moved out of the aircraft's cargo bay using roller conveyor systems and unloading conveyors mounted on the floor of the aircraft while still loaded onto containers, and then loaded onto trailers or tow tractors to be transported to logistics warehouses, etc.

In addition, conveyors are generally provided in various types as a means for transporting goods over short distances, and the most common types of these conveyors are belt-type conveyors and roll-type conveyors.

They are designed to place items on a surface and transport items in a straight or curved shape on a flat surface.

Conventional conveyor systems using rotary rolls have usually used a link mechanism for the direction changing function, but this link mechanism places a limit on the maximum angle at which the direction can be changed.

So it fell short of the needs of consumers who demand diversity.

And a conveyor device using a direction-changing roller includes a number of rotary roller units arranged longitudinally and transversely. When a problem occurs, such as a power transmission ring made of an O-ring breaking in a specific rotary roller unit, a lot of time and manpower are consumed to repair it. In addition, since the O-ring transmits power in a twisted state, it experiences a lot of friction and breaks.

When this phenomenon occurs, the entire device must be stopped and work must be done, as it is not possible to replace just the roller unit.

In addition, conventional conveyor devices are configured to operate by the perturbation of gears, but there are problems such as a lot of noise generated by physical contact between gears, foreign substances being generated due to wear, and durability being reduced.

Domestic Patent Publication No. 10-2321233 (October 28, 2021) Domestic Patent Publication No. 10-1865015 (May 30, 2018) Domestic Patent Publication No. 10-1449085 (October 1, 2014) Domestic utility model registration No. 20-0263588 (January 25, 2002)

The present invention has been made to solve such various problems of the related art, and the purpose of the present invention is to provide an air cargo transport conveyor which packages various types of air cargo using a pallet or container-containing load vessel and automatically transports them to a cargo transport vehicle or aircraft, wherein a 4-way heli-roll conveyor having 3 inlets and 1 outlet is installed between power roller beds for inlet and discharge, so that when air cargo is fed in through an inlet that is in the same line as the outlet among the 3 inlets, it is transported in a straight line, and when air cargo is fed in through one of the lateral (left or right) inlets among the remaining 2 lateral inlets, the direction of the air cargo is automatically switched on its upper surface toward the outlet (i.e., the air cargo is rotated 90 degrees clockwise or counterclockwise toward the outlet direction) and transported.

Another object of the present invention is to provide an air cargo transport conveyor equipped with a 4-way heli-roll, wherein an up/down roll bed is selectively installed on the floor of a work area on at least one inlet side formed laterally among the inlets of the 4-way heli-roll conveyor, and when air cargo transported by a forklift, a hand jack, a dolly, etc. is transferred to the up/down roll bed installed on the floor of the work area, the up/down roll bed frame is raised to the upper surface of the 4-way heli-roll conveyor, and then the cylindrical rollers provided on the up/down roll bed are operated to automatically transport the air cargo to the upper surface of the 4-way heli-roll conveyor.

Other detailed purposes of the present invention will be clearly understood and determined by experts or researchers in this technical field through the specific contents described below.

In order to achieve the above object, the air cargo transport conveyor equipped with a 4-way heli-roll of the present invention comprises: a plurality of power roller beds which are installed spaced apart from each other on the floor of a work area and transport air cargo introduced through an inlet on one side to an outlet on the other side, when configuring the air cargo transport conveyor; a heli-roll conveyor which is provided with three inlets and one outlet on four sides and is installed on the floor of a work area between any two adjacent power roller beds among the power roller beds and between up/down roll beds, and air cargo transported through one inlet by the power roller beds is transported straight toward the outlet on the other side, and air cargo transported through any one of the lateral inlets provided on both sides is automatically rotated 90 degrees clockwise or counterclockwise to transport it toward the outlet; an up/down roll bed which is installed on the floor of a work area on the side of at least one inlet among the lateral inlets of the heli-roll conveyor; and a main control panel that performs overall control functions for driving the power roller beds, the heli-roll conveyor, and the up/down roll beds.

In addition, the floor of the work area on the entrance side of the up/down roll bed includes a slab pallet assembly further installed so that packaged air cargo can be temporarily loaded and waited for transfer to the up/down roll bed side.

In addition, the power roller bed comprises a pair of power roller bed frames arranged in parallel while being spaced apart by a width corresponding to the length of the rollers; a power roller bed height-adjusting and support member arranged while being spaced apart from each other, an upper end of which is fixed to a bottom surface of the power roller bed frame, and a lower end of which is fixed to a floor surface of a work place; a plurality of cylindrical rollers arranged in a longitudinal direction within the power roller bed frame, both ends of which are rotatably coupled to bearings respectively installed on an inner surface of the power roller bed frame; a plurality of foot plates installed while being spaced apart from each other between the inner surfaces of the power roller bed frame so as to block a gap between the cylindrical rollers; a plurality of rotational force transmission sprockets formed integrally with a pair of gears while being spaced apart from each other, and fixedly installed on one end shaft of the cylindrical rollers; The present invention relates to a gear transmission apparatus comprising: a plurality of sprocket coupling chains that alternately and continuously couple gears of the rotational power transmission sprockets installed on the axles of the adjacent rollers; a geared motor, in which a pair of gears are integrally formed and spaced apart from each other, is provided on a rotational shaft and is fixedly installed on a bottom surface of one of the pair of power roller bed frames, and operates in response to an output signal of a control panel to generate rotational power for the cylindrical rollers; a geared motor power transmission chain, which is coupled between one of the rotational power transmission sprockets that is not connected to the sprocket coupling chain among the rotational power transmission sprockets and the drive sprocket, and which transmits the power of the geared motor to the roller through the rotational power transmission sprocket and the sprocket coupling chain; and a cargo detection sensor installed on the upper surface of the steps on the sides of the cargo inlet and outlet and detects the inflow and discharge status of air cargo and transmits the detected inflow and discharge status to the control panel.

In addition, the heli-roll conveyor comprises a heli-roll conveyor base frame in which unit frames having a rectangular frame shape are mutually connected to have a square frame shape; a conveyor height-adjusting and supporting member which is arranged to be spaced apart from each other along each of the four lower surfaces of the heli-roll conveyor base frame, an upper end is fixed to the lower surface of the heli-roll conveyor base frame, and a lower end is fixed to the floor of a work area; a plurality of heli-rolls are installed to be spaced apart from each other on each rotating rod, and are arranged in the longitudinal direction within the unit frame of the heli-roll conveyor base frame, and both ends are rotatably connected to bearings respectively installed on the inner surface of the side bars of the unit frame, wherein the inclination directions of the rotating incline rollers of the heli-rolls installed on the rotating rods which are adjacent to each other with respect to the longitudinal direction of the unit frame are alternately arranged with a phase difference of 180 degrees; A conveyor cover installed on an upper surface of the heli-roll conveyor base frame, wherein heli-roll exposure holes are formed at positions corresponding to the installation positions of the heli-rolls, respectively; odd-numbered and even-numbered group driven sprockets each having a pair of gears integrally formed apart from one another and installed on one side of a rotating shaft of the odd-numbered group heli-roll assembly or the other side of a rotating shaft of the even-numbered group heli-roll assembly, respectively; an odd-numbered and even-numbered group driven sprocket operating chain that continuously mutually connects the odd-numbered group driven sprockets or the even-numbered group driven sprockets adjacent to one another; an odd-numbered and even-numbered group driving motor each having a pair of gears integrally formed apart from one another and fixedly installed in opposite directions at the bottom of one side and the other side of the heli-roll conveyor base frame, which generates power so that the odd-numbered group heli-roll assembly or the even-numbered group heli-roll assembly rotates in a direction determined by a control unit; The invention relates to an odd and even group driving motor power transmission chain which mutually connects one of the odd group driven sprockets or the even group driven sprockets, wherein the driving sprocket of the odd group driving motor or the driving sprocket of the even group driving motor and the driven sprocket operating chain are not connected; and a heli-roll control panel which has a plurality of switches and controls the driving direction and the driving and stopping time of the odd and even group driving motors in response to the operation signals of the switches and the execution results of the control program stored therein.

In addition, the heli-roll conveyor further includes a guide roller for preventing detachment, which has rubber rollers respectively installed on vertical bars installed at each of the four corners of the heli-roll conveyor base frame, and which idles horizontally and elastically prevents detachment of air cargo whenever it collides with one side of air cargo being fed in and discharged through a plurality of inlets or discharge ports formed on the heli-roll conveyor base frame.

In addition, the heli-roll conveyor further includes a plurality of push stoppers, which are installed spaced apart from each other on both sides of the upper surface of the discharge port, including at least one inlet port among the inlets of the heli-roll conveyor base frame, and which are normally in a locked state with the push shaft inserted into the housing, but when a worker presses the push shaft by hand, the push shaft is unlocked within the housing and automatically protrudes upward by the restoring force of an elastic spring due to a situation in which the inlet and discharge of air cargo must be blocked.

In addition, the heli roll conveyor further includes a plurality of cargo detection sensors that are installed on both sides of the upper surface of the discharge port and the inlet port of the heli roll conveyor base frame and detect the inflow and discharge status of air cargo and transmit the detection to the control panel.

In addition, the conveyor height adjustment and support member comprises: a first support member having a cross-section having a "┗┛" shape, a bolt-bolt connecting plate formed by horizontal bending at a lower end, a pair of rectangular vertical holes formed spaced apart from each other on a vertical plate, and an upper end welded and fixed to a bottom surface of the heli-roll conveyor base frame; a second support member having a first support connecting plate having a cross-section having a "┗┛" shape on an upper surface of a floor fixing plate, a pair of rectangular vertical holes formed spaced apart from each other on the vertical plate of the first support connecting plate, and being fixedly installed on the floor surface of a work site; a height adjustment bolt having a bolt head positioned on an upper surface of the floor fixing plate of the second support member and a screw portion screw-connected so as to penetrate the bolt connecting plate of the first support member; And it includes a plurality of support fixtures that are fastened with nuts to bolts that penetrate the rectangular holes of the first and second support fixtures and maintain the combined state of the first and second support fixtures adjusted by the height adjustment bolt.

In addition, when the heli-roll control panel detects that air cargo has entered the inlet on one side of the heli-roll conveyor base frame in a straight line with the discharge port by the cargo detection sensor, it drives all of the odd and even group driving motors installed on one side and the other side of the heli-roll conveyor base frame clockwise so that all of the odd and even group heli-roll assemblies rotate clockwise and the air cargo entered through the inlet on one side is discharged through the discharge port on the other side.

When it is detected that air cargo has entered through one of the inlets (for example, the left) on both sides of the heli-roll conveyor base frame having a 90-degree phase angle with the discharge port, the odd-numbered group driving motor installed on one side of the heli-roll conveyor base frame is driven clockwise, and the even-numbered group driving motor installed on the other side is driven counterclockwise, so that the odd-numbered group heli-roll assemblies rotate clockwise, and the even-numbered group heli-roll assemblies rotate counterclockwise, and apply frictional force to the bottom surface of the air cargo so that the air cargo is transported while rotating 90 degrees counterclockwise toward the discharge port.

When it is detected that air cargo has entered through the other inlet (for example, the right) among the inlets on both sides of the heli-roll conveyor base frame having a 90-degree phase angle with the discharge port, the odd-numbered group driving motor installed on one side of the heli-roll conveyor base frame is driven counterclockwise, and the even-numbered group driving motor installed on the other side is driven clockwise, so that the odd-numbered group heli-roll assemblies rotate counterclockwise and apply frictional force to the bottom surface of the air cargo so that the air cargo is transported while rotating 90 degrees clockwise toward the discharge port.

In addition, the up/down roll bed comprises: an up/down roll bed frame having a square frame shape; a plurality of cylindrical rollers arranged at right angles to the direction of travel of air cargo and spaced apart from each other within the up/down roll bed frame, and both ends of which are rotatably coupled to bearings installed on the inner side of both sides; a plurality of support frames installed at right angles to each other between both sides of the up/down roll bed frame so as to block a gap between the cylindrical rollers; a pair of up/down units installed between both sides of the up/down roll bed frame and the floor of the workplace and raising/lowering the up/down roll bed frame, the cylindrical rollers, and the support frames; a plurality of rotational force transmitting sprockets in which a pair of gears are integrally formed at right angles to each other and are fixedly installed on one end shaft of the rollers; A plurality of sprocket coupling chains which alternately and continuously couple gears of rotational power transmission sprockets installed on axles of the adjacent rollers; A geared motor in which a pair of gears are integrally formed and spaced apart from each other and a drive sprocket are provided on a rotational shaft and are fixedly installed on an upper portion of one side of one of the up/down units among the pair of up/down units, and which operates in response to an output signal of a control panel and generates rotational power to the rollers; A geared motor power transmission chain which is coupled between one of the rotational power transmission sprockets that is not connected to the sprocket coupling chain among the rotational power transmission sprockets and the drive sprocket and which transmits the power of the geared motor to the roller through the rotational power transmission sprocket and the sprocket coupling chain; A cargo detection sensor which is installed on the upper surface of the support frame on the inlet and outlet sides of the up/down roll bed frame and detects the inflow and discharge status of air cargo and transmits the detected inflow and discharge status to the control panel; The above-mentioned up/down roll bed frame includes a plurality of push stoppers, which are installed spaced apart from each other on the upper surfaces of the inlet and outlet ports, and which are normally in a locked state with the push shaft inserted into the housing, but when a worker presses the push shaft by hand, the push shaft is unlocked within the housing and automatically protrudes upward by the restoring force of the elastic spring due to a situation in which the inlet and outlet of air cargo must be blocked.

At this time, the up/down unit includes: a first frame arranged along both sides of the up/down roll bed frame and fixedly installed on the floor surface of the workplace; a second frame installed spaced apart from the upper portion of the first frame and having inner sides respectively fixed to both sides of the up/down roll bed frame; a pair of X-shaped lifting bars installed between both sides of the upper surface of the first frame and both sides of the lower surface of the second frame, and which unfold or fold in response to the lifting operation of the hydraulic cylinders and lift the up/down roll bed frame via the second frame; and a pair of hydraulic cylinders which generate power required for lifting the second frame and the up/down roll bed frame in a state where the lower portion of the body is supported on the first frame and the ends of the rods are coupled on the axes of the X-shaped lifting bars.

Meanwhile, prior to this, the terms or words used in the patent registration claims of this specification should not be interpreted as limited to their usual or dictionary meanings, and should be interpreted as meanings and concepts that conform to the technical idea of the present invention based on the principle that the inventor can appropriately define the concept of the term in order to explain his or her own invention in the best possible way.

Therefore, the embodiments described in this specification and the configurations illustrated in the drawings are only the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention, so it should be understood that there may be various equivalents and modified examples that can replace them at the time of filing this application.

As described above, according to the air cargo transport conveyor equipped with a 4-way heli-roll of the present invention, when configuring an air cargo transport conveyor that packages various types of air cargo using a loading container including a pallet or a container and automatically transports them to a cargo transport vehicle or aircraft, a 4-way heli-roll conveyor having 3 inlets and 1 outlet is installed between power roller beds for inlet and discharge, so that when air cargo is fed through an inlet that is in the same line as the outlet among the 3 inlets, it is transported in a straight line, and when air cargo is fed through one of the lateral (left or right) inlets among the remaining 2 lateral inlets, the direction of the air cargo is automatically changed on its upper surface toward the outlet (i.e., the air cargo is rotated 90 degrees clockwise or counterclockwise toward the direction of the outlet) so that it can be safely discharged by quickly and accurately changing the direction regardless of the direction of inflow of the air cargo.

In addition, in the present invention, an up/down roll bed is selectively installed on the floor of the workplace on at least one inlet side formed laterally among the inlets of the 4-way heli-roll conveyor, and when air cargo transported by a forklift, a hand jack, a dolly, etc. is transferred to the up/down roll bed installed on the floor of the workplace, the commercial/down roll bed frame of the up/down roll bed is raised to the upper surface of the 4-way heli-roll conveyor, and then the cylindrical rollers provided on the up/down roll bed are operated to automatically transport it to the upper surface of the 4-way heli-roll conveyor. Therefore, heavy air cargo can be transported to the 4-way heli-roll conveyor without using a separate lifting device, and thus, the work time can be shortened and labor costs can be significantly reduced, making it a very useful invention.

Other effects of the present invention will be clearly understood and determined by experts or researchers in this technical field through the specific contents described below or during the process of implementing the present invention.

FIG. 1 and FIG. 2 are overall plan views of an air cargo transport conveyor equipped with a four-way heli-roll of the present invention.
FIG. 3 is a photograph substituted for a drawing showing the installation state of an air cargo transport conveyor equipped with a 4-way heli-roll of the present invention.
Figure 4 is a plan view, a front view, and a right side view of the power roller bed of the present invention.
Figure 5 is a plan view, a front view, and a right side view of a heli-roll conveyor of the present invention.
Fig. 6 is a photograph substituted for a drawing explaining the configuration of a heli roll of a heli roll conveyor in the present invention.
Figure 7 is a photograph substituted for a drawing explaining the installation state of the heli-roll conveyor of the present invention.
Figure 8 is a plan view, a front view, and a right side view of the up/down roll bed of the present invention.
Figure 9 is a front view of the operating status of the up/down unit in Figure 8.
Fig. 10 is a photograph substituted for a drawing for explaining the combined state and operating state of the heli-roll conveyor and the up/down bed roll and slab pallet assembly of the present invention.
Fig. 11 is a plan view of a slab pallet assembly of the present invention.
Figure 12 is a photo substitute for a drawing explaining various control panels of the present invention.

The present invention can be modified in various ways and can take various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to specific disclosed forms, but should be understood to include all modifications, equivalents, or substitutes included in the spirit and technical scope of the present invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.

The terminology used in this application is only used to describe specific embodiments and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, it should be understood that the terms "comprises" or "has" and the like are intended to specify the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and will not be interpreted in an idealized or overly formal sense, unless expressly defined otherwise in this application.

Hereinafter, the operating state according to each configuration, including a preferred embodiment according to the present invention, will be described in detail with reference to the attached drawings.

FIG. 1 and FIG. 2 are overall plan views of an air cargo transport conveyor equipped with a 4-way heli-roll of the present invention, FIG. 3 is a drawing substitute photograph showing the installation state of an air cargo transport conveyor equipped with a 4-way heli-roll of the present invention, and FIG. 4 is a plan view, a front view, and a right side view of a power roller bed of the present invention.

In addition, FIG. 5 shows a plan view, a front view, and a right side view of the heli roll conveyor of the present invention, FIG. 6 shows a photograph substituted for a drawing explaining the configuration of the heli roll of the heli roll conveyor of the present invention, and FIG. 7 shows a photograph substituted for a drawing explaining the installation state of the heli roll conveyor of the present invention.

In addition, Fig. 8 shows a plan view, a front view, and a right side view of the up/down roll bed of the present invention, and Fig. 9 shows a front view of the operating state of the up/down unit of Fig. 8.

FIG. 10 is a drawing substitute photo for explaining the connection state and operating state of the heli-roll conveyor and the up/down bed roll and the slab pallet assembly of the present invention, FIG. 11 is a plan view of the slab pallet assembly of the present invention, and FIG. 12 is a drawing substitute photo for explaining various control panels of the present invention.

According to this, the air cargo transport conveyor equipped with a 4-way heli-roll of the present invention largely includes a plurality of power roller beds (100), a plurality of heli-roll conveyors (200), a plurality of up/down roll beds (400), and a main control panel (700), as shown in FIGS. 1 to 3.

In addition, the present invention may further include a plurality of slab pallet assemblies (600) installed on the floor surface of the work area on the entrance side of the up/down roll bed.

Here, FIG. 1 illustrates a state in which an air cargo transport conveyor equipped with a 4-way heli-roll of the present invention is installed in a straight line on the floor surface of a workplace, and FIG. 2 illustrates a state in which an air cargo transport conveyor equipped with a 4-way heli-roll of the present invention is installed in an “ㄱ” shape on the floor surface of a workplace.

In addition, the arrows indicated in Figures 1 and 2 indicate the direction of transport of cargo.

At this time, the plurality of power roller beds (100) have a configuration including a pair of power roller bed frames (110), a plurality of power roller bed height-adjusting and support members (120), a plurality of cylindrical rollers (130), a plurality of foot plates (140), a plurality of rotational power transmission sprockets (150), a plurality of sprocket coupling chains (160), a geared motor (170), a geared motor power transmission chain (180), and a cargo detection sensor (190), as shown in FIG. 4.

The power roller beds (100) described above are installed one at a time or two in series, spaced apart from each other on the floor of the workplace, as shown in FIGS. 1 and 2, and perform the function of receiving air cargo flowing in through an inlet on one side and transporting it to an outlet on the other side.

Among the components of the power roller bed (100) described above, the pair of power roller bed frames (110) are formed by cutting a “ㄷ” shaped steel to a certain length, and are arranged in parallel while being spaced apart by a width corresponding to the length of a cylindrical roller described later.

In addition, the power roller bed height adjustment and support member (120) is arranged longitudinally spaced apart from each other at the bottom of the power roller bed frames (110), the upper part is fixed to the bottom surface of the power roller bed frame (110) through a plurality of bolts and nuts, and the lower part is fixed to the floor surface of the work site through anchor bolts or the like.

The power roller bed height adjustment and support member (120) described above performs the function of adjusting the overall height of the power roller bed (100) and supporting the power roller bed (100) itself to maintain a fixed shape at a certain height from the floor of the workplace.

At this time, the power roller bed height adjustment and support member (120) has the same configuration as the configuration of the conveyor height adjustment and support member (220) equipped in the heli roll conveyor (200) described later, and a detailed description of its specific configuration and connection relationship is omitted here and replaced with a description of specific components of the heli roll conveyor (200) described later.

In addition, the plurality of cylindrical rollers (130) are rollers widely used in direct conveyors, etc., and have a configuration in which bearings are provided at both ends of the shaft and a pipe-shaped roller body is coupled to the outside of the bearings, and are arranged in the longitudinal direction within the power roller bed frame (110), and both ends are rotatably coupled to bearings (drawing symbols omitted) respectively installed on the inner surface of the power roller bed frame (110).

The above-described plurality of cylindrical rollers (130) rotate in response to the power of a geared motor (170) for driving a power roller bed (100) described later, and perform the function of allowing the heavy air cargo to move smoothly with minimal friction.

In addition, the plurality of footrests (140) are installed spaced apart from each other so as to block the gap formed between the cylindrical rollers (130) between the inner surfaces of the power roller bed frame (110), thereby preventing air cargo and specific objects, including the feet of a worker climbing onto the upper portion of the power roller bed (100), from getting caught in the gap between the cylindrical rollers (130) or falling through the gap.

In addition, the above-described plurality of rotational power transmission sprockets (150) have a form in which a pair of gears (drawing symbols are omitted) are integrally formed and spaced apart from each other, and are fixedly installed on one end of the shafts of the above-described cylindrical rollers (130) to perform a function of enabling chains to be coupled, which will be described later.

In addition, the above-described plurality of sprocket coupling chains (160) alternately and continuously connect the gears of the rotational power transmission sprockets (150) installed on the shafts of the adjacent cylindrical rollers (130) so that the cylindrical rollers (130) can rotate simultaneously in the same direction when the geared motor (170) is rotated, which will be described later, and ultimately transmit the rotational power of the geared motor (170) to the cylindrical rollers (130).

In addition, the geared motor (170) may have a form in which a drive sprocket (171) in which a pair of gears (drawing symbols are omitted) are formed integrally and spaced apart from each other is provided on a rotational axis, and is fixedly installed on the bottom surface of one of the power roller bed frames (110).

The geared motor (170) of this type has a reduction gear inside and operates in response to a driving signal output from a control panel (100a) to generate power required for the rotation of the cylindrical rollers (130).

In addition, the geared motor power transmission chain (180) has a form that is connected between one of the rotational power transmission sprockets (150) that is not connected to the sprocket coupling chain (160) among the rotational power transmission sprockets (150) and the drive sprocket (171) of the geared motor (170), and performs the function of transmitting the power of the geared motor (170) to the cylindrical rollers (130) through the rotational power transmission sprocket (150) and the sprocket coupling chain (160).

In addition, the cargo detection sensor (190) is equipped with a light emitting part and a light receiving part, and is installed on the upper surface of the foot plate (140) on the cargo inlet and outlet sides of the power roller bed (100), respectively, and performs the function of electrically detecting the inflow and discharge status of air cargo flowing into or discharged from the power roller bed (100) and transmitting it to the control panel (100a).

Meanwhile, the above-described heli-roll conveyor (200) has a configuration with three inlets (front and both sides) and one outlet (rear) on four sides, and can be installed in a space between any two adjacent power roller beds among the above-described power roller beds (100) and on the floor of a work site adjacent to the outlet of an up/down roll bed (400) described below.

The above-described heli-roll conveyor (200) performs the function of transporting air cargo transported through one side inlet by the power roller bed (100) straight to the other side outlet, and transporting air cargo transported through one of the lateral inlets provided on both sides to the outlet by automatically rotating 90 degrees clockwise or counterclockwise.

The heli-roll conveyor (200) as described above, as shown in FIGS. 5 to 7, largely includes a heli-roll conveyor base frame (210), a conveyor height adjustment and support member (220), a plurality of odd and even group heli-roll assemblies (230a)(230b), a conveyor cover (240), an odd and even group driven sprocket (250a)(250b), an odd and even group driven sprocket operating chain (260a)(260b), an odd and even group driving motor (270a)(270b), an odd and even group driving motor power transmission chain (280a)(280b), and a heli-roll control panel (290).

In addition, the heli-roll conveyor (200) may further include a guide roller (300) for preventing detachment, a plurality of push stoppers (310), and a plurality of cargo detection sensors (320).

Among the components of the above-described heli roll conveyor (200), the heli roll conveyor base frame (210) may have a form in which a plurality of unit frames (211) having a rectangular frame shape are mutually joined to have a square frame shape.

In addition, the conveyor height adjustment and support member (220) may have a configuration including a first support member (221), a second support member (222), a height adjustment bolt (223), and a plurality of support member fixing members (224), as shown in the enlarged view of FIG. 5, and may be arranged at a predetermined distance apart from each other along the four lower surfaces of the heli-roll conveyor base frame (210), with the upper part being fixed to the lower surface of the heli-roll conveyor base frame (210) through welding or the like, and the lower part being fixed to the floor surface of the work site through anchor bolts or the like.

The conveyor height adjustment and support member (220) described above performs the function of adjusting the overall height of the heli roll conveyor (200) and supporting the heli roll conveyor (200) itself to maintain a fixed shape at a certain height from the floor of the work place.

In addition, among the components of the conveyor height adjustment and support member (220) described above, the first support member (221) may have a cross-section having a “┗┛” shape, a bolt-joining plate (221-1) formed in a horizontally folded manner at the lower end, a pair of rectangular vertical holes (221-3) formed spaced apart from each other on the vertical plate (221-2), and a form in which the upper end is fixed to the lower surface of the heli-roll conveyor base frame (210) by welding or the like.

In addition, the second support member (222) may have a first support member joining plate (222-2) having a cross-section in the shape of "┗┛" formed on the upper surface of the floor fixing plate (222-1), and a pair of rectangular vertical holes (222-4) formed spaced apart from each other on the vertical plate (222-3) of the first support member joining plate (222-2), and may have a form fixedly installed on the floor surface of the work site by an anchor bolt or the like.

In addition, the height adjustment bolt (223) has a bolt head positioned on the upper surface of the bottom fixing plate (222-1) of the second support member (222) and a screw portion that penetrates the bolt joint plate (221-1) of the first support member (221) and is screw-connected, moves up and down in response to the direction in which the worker rotates using the tool, and performs the function of adjusting the height of the heli-roll conveyor (200) through the up and down operation of the first support member (221).

In addition, the plurality of support fixtures (224) perform a function of maintaining the combined state of the first and second support portions (221)(222) whose height is adjusted by the height adjustment bolt (223) by fastening nuts to bolts that pass through the rectangular holes (221-3)(222-4) formed in the first and second support portions (221)(222) respectively to mutually fix the vertical plates (221-2)(222-3) to the first and second support portions (221)(222).

In addition, the plurality of odd and even group heli-roll assemblies (230a) (230b) may have a plurality of heli-rolls (232) spaced apart from each other installed on each rotating rod (231), and arranged in the longitudinal direction within the unit frame (211) of the heli-roll conveyor base frame (210), and both ends thereof may be rotatably connected to bearings (drawing symbols omitted) respectively installed on the inner side bars of the unit frames (211), and the inclination directions of the rotating incline rollers (232-2) of the heli-rolls (232) installed on the rotating rods (231) adjacent to each other with respect to the longitudinal direction of the unit frames (211) may be arranged alternately with a phase difference of 180 degrees.

At this time, the heli-roll (232) has a configuration in which rotating inclined rollers (232-2) having an elliptical rod shape are axially slanted in one direction between a pair of roll support plates (232-1) whose outer peripheral surfaces are folded in a wave shape as illustrated in FIG. 6, and when the rotating inclined rollers (232-2) of the heli-roll (232) installed on the rotating rods (231) at adjacent positions are divided into odd and even numbers and arranged alternately with a phase difference of 180 degrees, the direction in which the frictional force is applied can be changed depending on the rotational direction of the odd and even group heli-roll assemblies (230a)(230b).

Accordingly, air cargo transported through an inlet located on the same line as the outlet can be moved directly to the outlet side, and air cargo transported through inlets provided on both sides can be accurately transported to one outlet side by turning 90 degrees clockwise or counter-clockwise, respectively.

In addition, the conveyor cover (240) is formed using a relatively thick iron plate, and heli-roll exposure holes (241) are formed at positions corresponding to the installation positions of the heli-rolls (232), and are installed on the upper surface of the heli-roll conveyor base frame (210).

Accordingly, it is possible to support workers and air cargo more stably when climbing onto the upper portion of the heli-roll conveyor (200), and it is also possible to prevent workers' feet or specific objects from being caught in the gap between the outside of the heli-roll (232) and the heli-roll exposure holes (241) or from falling through the gap.

In addition, the odd and even group driven sprockets (250a) (250b) are formed integrally with a pair of gears spaced apart from each other and are installed on one side of the rotating shaft (231) of the odd group heli roll assembly (230a) or the other side of the rotating shaft (231) of the even group heli roll assembly (230b).

In addition, the odd and even group driven sprocket operating chains (260a)(260b) have a form that continuously mutually connects the odd group driven sprockets (250a) or the even group driven sprockets (250b) adjacent to each other.

In addition, the motors (270a) (270b) for driving the odd and even groups are provided with a drive sprocket (271) in which a pair of gears are integrally formed and spaced apart from each other on the rotation shaft, and are fixedly installed in opposite directions on the bottom of one side and the other side of the heli-roll conveyor base frame (210).

The above odd and even group driving motors (270a)(270b) perform the function of generating power to rotate the odd group heli roll assembly (230a) or the even group heli roll assembly (230b) in a direction determined by the control unit.

In addition, the motor power transmission chain (280a)(280b) for driving the odd and even groups has a form that mutually connects the driving sprocket (271) of the odd group driving motor (270a) or the driving sprocket (271) of the even group driving motor (270b) and either the odd group driven sprocket (260a) or the even group driven sprocket (260b) to which the driven sprocket operating chain is not connected.

The above-described odd and even group driving motor power transmission chains (280a)(280b) perform the function of transmitting power generated from the odd and even group driving motors (270a)(270b), respectively, to the odd group heli-roll assemblies (230a) and the even group heli-roll assemblies (230b) via the odd group driven sprocket (260a) or the even group driven sprocket (260b), respectively.

In addition, the control panel (290) for the heli-roll is equipped with a plurality of switches and performs the function of controlling the driving direction and driving and stopping time of the odd and even group driving motors (270a) (270b) in response to the operating signals of the switches and the execution results of the control program stored inside.

In addition, among the components further included in the heli-roll conveyor (200) to which one embodiment of the present invention is applied, the guide roller (300) for preventing detachment may have a form in which rubber rollers are respectively installed on vertical bars installed at each of the four corners of the heli-roll conveyor base frame (210).

Whenever the above-described guide rollers (300) for preventing detachment collide with one side of air cargo being fed in and discharged through a plurality of inlets or outlets formed in the heli-roll conveyor base frame (210), the frictional force causes the rubber rollers to rotate horizontally while providing elasticity to the outer surface of the air cargo, thereby allowing the air cargo to move toward the center without being separated from the heli-roll conveyor base frame (210).

In addition, the plurality of push stoppers (310) are installed spaced apart from each other on both sides of the upper surface of the discharge port, including at least one inlet port among the inlets of the heli-roll conveyor base frame (210).

The above-described plurality of push stoppers (310) are each in a locked state with the push shaft (311) normally inserted into the housing (312), and when a situation arises where the inflow and discharge of air cargo must be blocked, when the worker presses the push shaft (311) by hand, the push shaft (311) is unlocked within the housing (312) and automatically protrudes upward by the restoring force of the elastic spring (313), thereby performing a stopper function of blocking the movement of air cargo.

In addition, the above-described plurality of cargo detection sensors (320) are equipped with a light emitting unit and a light receiving unit, and are installed on both sides of the upper surface of the discharge and inlet ports of the heli-roll conveyor base frame (210), and perform the function of detecting the inflow and discharge status of air cargo as an electrical signal and transmitting it to the heli-roll control panel (290).

In addition, when the control panel (290) for the heli-roll detects that air cargo has entered the inlet on one side of the heli-roll conveyor base frame (210) located in a straight line opposite the discharge port by the cargo detection sensor (320), it drives all of the odd and even group driving motors (270a)(270b) installed on one side and the other side of the heli-roll conveyor base frame (210) clockwise so that all of the odd and even group heli-roll assemblies (230a)(230b) rotate clockwise and control the air cargo entered through the inlet on one side to be discharged through the discharge port on the other side.

In addition, when it is detected by the cargo detection sensor (320) that air cargo has entered through one of the inlets on both sides of the heli-roll conveyor base frame (210) having a 90-degree phase angle with the discharge port (for example, the left inlet having a 90-degree phase angle in the counterclockwise direction), the control panel (290) for the heli-roll drives the odd-numbered group driving motor (270a) installed on one side of the heli-roll conveyor base frame (210) clockwise and drives the even-numbered group driving motor (270b) installed on the other side counterclockwise, so that the odd-numbered group heli-roll assemblies (230a) rotate clockwise and the even-numbered group heli-roll assemblies (230b) rotate counterclockwise and apply frictional force to the bottom surface of the air cargo in the opposite direction to the forward direction so that the air cargo is transported while rotating 90 degrees counterclockwise toward the discharge port.

In addition, when it is detected by the cargo detection sensor (320) that air cargo has entered through the other inlet (for example, the right inlet having a 90 degree phase angle clockwise) among the inlets on both sides of the heli-roll conveyor base frame (210) having a 90 degree phase angle with the discharge port, the control panel (290) for the heli-roll drives the odd-numbered group driving motor (270a) installed on one side of the heli-roll conveyor base frame (210) counterclockwise and drives the even-numbered group driving motor (270b) installed on the other side clockwise, so that the odd-numbered group heli-roll assemblies (230a) rotate counterclockwise and apply frictional force in the opposite direction to the direction of travel to the bottom surface of the air cargo so that the air cargo is transported while rotating 90 degrees clockwise toward the discharge port.

Accordingly, the heli-roll conveyor (200) can transport air cargo in a straight line when the air cargo is fed through an inlet that is on the same line as the discharge port among the three inlets, and can automatically change the direction of the air cargo toward the discharge port on its upper surface (i.e., rotate the air cargo 90 degrees clockwise or counterclockwise toward the discharge port) when the air cargo is fed through one of the two lateral inlets (left or right). Therefore, regardless of the direction of the air cargo's inflow, the direction can be changed quickly and accurately to safely discharge the air cargo.

Of course, if the worker operates the reverse switch to move the air cargo loaded on the heli roll conveyor (200) backward toward the inlet formed on the opposite side of the discharge port, the control panel (290) for the heli roll drives both the odd and even group driving motors (270a)(270b) installed on one side and the other side of the heli roll conveyor base frame (210) respectively in a counterclockwise direction so that all the odd and even group heli roll assemblies (230a)(230b) rotate counterclockwise and control the air cargo to move backward toward the inlet on the opposite side of the discharge port.

Meanwhile, the up/down roll bed (400) may include an up/down roll bed frame (410), a plurality of cylindrical rollers (420), a plurality of support frames (430), a pair of up/down units (440), a plurality of rotational power transmission sprockets (450), a plurality of sprocket coupling chains (460), a geared motor (470), a geared motor power transmission chain (480), a cargo detection sensor (490), and a plurality of push stoppers (500), as shown in FIGS. 8 and 9, and may be installed on the floor surface of a work site on the side of at least one of the lateral inlets of the heli-roll conveyor (200).

The above-described up/down roll bed (400) performs a function of allowing air cargo transported by a forklift, a hand jack, a dolly, etc. to be moved to the up/down roll bed (400) in a state of being in close contact with the floor of a workplace as shown in FIG. 3, and then elevating the up/down roll bed frame (410) to the upper surface of the 4-way heli-roll conveyor (200), and then operating the cylindrical rollers (420) provided on the up/down roll bed (400) to automatically transport the air cargo to the upper surface of the 4-way heli-roll conveyor (200) as shown in FIG. 10.

Accordingly, heavy chain air cargo can be transported to the 4-way heli-roll conveyor (200) using the up/down roll bed (400) without using a separate lifting device, thereby significantly reducing work time and labor costs.

At this time, among the components of the up/down roll bed (400), the up/down roll bed frame (410) includes a square frame shape formed using a “ㄷ” shape or the like.

The above-described up/down roll bed frame (410) is normally installed in close contact with the floor of the workplace so that air cargo can be loaded, and when a pair of up/down units (440) described later are operated to elevate the loaded air cargo so that it is aligned with the upper surface of the 4-way heli-roll conveyor (200).

Of course, when the loaded air cargo is transferred to the 4-way heli-roll conveyor (200), the up/down roll bed (400) is lowered to the floor of the work site again in response to the lowering operation of the up/down units (440), and then the loading, lifting, and moving operations of the air cargo are repeated again.

In addition, the plurality of cylindrical rollers (420) are rollers widely used in direct conveyors, etc., and have a configuration in which bearings are provided at both ends of the shaft and a pipe-shaped roller body is coupled to the outside of the bearings, and are arranged spaced apart from each other at a right angle to the direction of travel of air cargo within the up/down roll bed frame (410), and both ends are rotatably coupled to bearings respectively installed on the inside of both sides of the up/down roll bed frame (410).

The above-described plurality of cylindrical rollers (420) rotate in response to the power of a geared motor (470) for driving an up/down roll bed (400) described later, and perform a function of allowing a heavy chain air cargo to move smoothly toward the heli-roll conveyor (200) with minimal friction.

In addition, the plurality of support frames (430) are installed spaced apart from each other so as to block the gap formed between the cylindrical rollers (420) between the inner surfaces of the up/down roll bed frame (410), and perform the function of preventing air cargo and specific objects, including the feet of a worker climbing onto the upper part of the up/down roll bed (400), from getting caught in the gap between the cylindrical rollers (420) or falling through the gap.

In addition, the above pair of up/down units (440) include, as shown in FIG. 9, a first frame (441), a second frame (442), a pair of X-shaped lifting bars (443), and a pair of hydraulic cylinders (444), and, when installed between both sides of the up/down roll bed frame (410) and the floor of the work place, perform the function of raising/lowering the up/down roll bed frame (410), the cylindrical rollers (420), and the support frame (430).

At this time, among the components of the up/down unit (440), the first frame (441) has a cross-section in the shape of “┗┛” and is fixedly installed on the floor of the work site using anchor bolts or the like while being arranged along both sides of the up/down roll bed frame (410).

In addition, the second frame (442) has a cross-section in the shape of a “┏┓” and is positioned so as to be spaced apart from the upper portion of the first frame (441) while its inner surface is fixed to each side of the up/down roll bed frame (410) using a plurality of bolts or the like.

In addition, the above-described pair of X-shaped lifting bars (443) are installed between the upper surface sides of the first frame (441) and the lower surface sides of the second frame (442) in a state where at least two pairs of lifting bars are connected in an X shape centered on a central axis, and unfold or fold in response to the lifting operation of the hydraulic cylinders (444) described below, and perform the function of lifting and lowering the up/down roll bed frame (410), etc., through the second frame (442).

In addition, the pair of hydraulic cylinders (444) have a lower part of the body that is supported on the first frame (441) and an end of the rod that is connected to the shaft of the X-shaped lifting bars (443), and are operated in response to an output signal from the control panel to generate power required for lifting the second frame (442) and the up/down roll bed frame (410).

In addition, the above-described plurality of rotational power transmission sprockets (450) have a form in which a pair of gears are integrally formed with each other spaced apart, and are fixedly installed on one end shaft of the above-described cylindrical rollers (420) to perform the function of enabling chains to be coupled, which will be described later.

In addition, the above-described plurality of sprocket coupling chains (460) alternately and continuously connect the gears of the rotational power transmission sprockets (450) installed on the shafts of the adjacent cylindrical rollers (420) so that the cylindrical rollers (420) can rotate simultaneously in the same direction when the geared motor (470) is rotated, which will be described later, to ultimately transmit the rotational power of the geared motor (470) to the cylindrical rollers (420).

In addition, the geared motor (470) for driving the up/down roll bed (400) has a reduction gear inside, and a driving sprocket (471) in which a pair of gears are integrally formed and spaced apart from each other is installed on the rotation shaft, and is operated in response to a driving signal output from the control panel while being fixedly installed on the upper side of one side of one of the up/down units (440), and performs the function of generating power required for the rotation of the cylindrical rollers (420).

In addition, the geared motor power transmission chain (480) has a form that is connected between one of the rotational power transmission sprockets (450) that is not connected to the sprocket coupling chain (460) among the rotational power transmission sprockets (450) and the drive sprocket (471) of the geared motor (470), and performs the function of transmitting the power of the geared motor (470) to the cylindrical rollers (420) through the rotational power transmission sprocket (450) and the sprocket coupling chain (460).

In addition, the cargo detection sensor (490) is equipped with a light emitting part and a light receiving part, and is installed on the upper surface of the support frame (430) on the inlet and outlet sides of the up/down roll bed frame (410), respectively, and performs the function of electrically detecting the inflow and discharge status of air cargo flowing into or discharged from the up/down roll bed (400) and transmitting it to the control panel.

In addition, the plurality of push stoppers (500) are installed spaced apart from each other on the upper surfaces of the inlet and outlet of the up/down roll bed frame (410).

As described above, the plurality of push stoppers (500) are normally in a locked state with the push shaft inserted into the housing, and when a situation arises where the inflow and discharge of air cargo must be blocked, when the worker presses the push shaft by hand, the push shaft is unlocked within the housing and automatically protrudes upward by the restoring force of the elastic spring, thereby performing a stopper function of blocking the movement of air cargo.

Meanwhile, the main control panel (700) is connected to each of the control panels and performs an overall control function by integrating the driving of the power roller beds (100), the heli-roll conveyor (200), and the up/down roll bed (400).

In addition, the slab pallet assembly (600) may have a configuration in which a plurality of relatively wide steps (620) are installed at set intervals inside a square pallet frame (610) as shown in FIGS. 10 and 11, and a plurality of free rollers (630) are installed at set intervals in the space between the inner surface of both sides of the pallet frame (610) and the steps (620).

The above slab pallet assembly (600) is of a movable type that is selectively installed on the floor of the work area on the entrance side of the up/down roll bed (400), so that packaged air cargo can be temporarily loaded and waited for, and then, when necessary, forcibly pushed by a worker to be transferred to the up/down roll bed (400).

Meanwhile, the above-mentioned control panels (100a)(290)(700) have various shapes as shown in Fig. 12 and are installed dispersedly on the floor of the workplace.

As described above, the present invention is not limited to the described embodiments, and it is obvious to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention.

Accordingly, the embodiments of the present invention are merely illustrative in all respects and should not be construed as limiting, and can be implemented in various ways without departing from the technical idea or main characteristics thereof.

That is, although the detailed description of the present invention described above has been described with reference to preferred embodiments of the present invention, it will be understood by those skilled in the art or having common knowledge in the art that the present invention can be variously modified and changed within a scope that does not depart from the spirit and technical scope of the present invention described in the claims to be described later.

100 : Power Roller Bed
100a: Control panel 110: Power roller bed frame
120: Power roller bed height adjustment and support member
130 : Circular roller 140 : Footrest
150: Sprocket for transmitting rotational power 160: Chain for connecting sprocket
170: Geared motor 171: Drive sprocket
180: Geared motor power transmission chain 190: Cargo detection sensor
200 : Heli Roll Conveyor
210: Heli Roll Conveyor Base Frame 211: Unit Frame
220: Conveyor height adjustment and support member
221: First support 221-1: Bolt joint plate
221-2: Vertical plate 221-3: Rectangular vertical hole
222: 2nd support
222-1: Floor fixing plate 222-2: First support joint plate
222-3: Vertical plate 222-4: Rectangular vertical hole
223: Height adjustment bolt 224: Support fixture
230a: Odd group heli roll assy 230b: Even group heli roll assy
231: Rotating bar 232: Heli roll
232-1: Roll support plate 232-2: Rotating inclined roller
240: Conveyor cover 214: Heli roll exposure hole
250a: Odd group driven sprocket 250b: Even group driven sprocket
260a: Chain for odd group driven sprocket operation
260b: Chain for operating even-numbered group driven sprockets
270a: Motor for driving odd groups 270b: Motor for driving even groups
271 : Drive sprocket
280a: Motor power transmission chain for odd group drive
280b: Motor power transmission chain for even group drive
290: Heli-roll control panel 300: Guide roller for anti-separation
310 : Push stopper 311 : Push shaft
312 : Housing 313 : Elastic spring
320: Cargo detection sensor
400 : Up/Down Roll Bed
410: Up/down roll bed frame 420: Circular roller
430: Support Frame 440: Up/Down Unit
441: First frame 442: Second frame
443: X-shaped lifting bar 444: Hydraulic cylinder
450: Sprocket for transmitting rotational power 460: Chain for connecting sprocket
470: Geared motor 471: Drive sprocket
480 : Geared motor power transmission chain
490: Cargo detection sensor 500: Push stopper
600 : Slab Pallet Assy 610 : Pallet Frame
620 : Foothold 630 : Free Roller
700 : Main Control Panel

Claims (9)

In constructing a conveyor for transporting air cargo,
A plurality of power roller beds installed spaced apart from each other on the floor of the workplace and transporting air cargo entering through an inlet on one side to an outlet on the other side;
A heli-roll conveyor having three inlets and one outlet on four sides, and installed on the floor of a work place between any two adjacent power roller beds among the power roller beds and between the up/down roll beds, wherein air cargo transported through one inlet by the power roller bed is transported straight toward the other outlet, and air cargo transported through any one of the lateral inlets provided on both sides is automatically rotated 90 degrees clockwise or counterclockwise and transported toward the outlet;
An up/down roll bed installed on the floor of the work area on the side of at least one of the lateral inlets of the above-mentioned heli-roll conveyor; and
Includes a main control panel that performs overall control functions for driving the above power roller beds, heli roll conveyor, and up/down roll bed;
The above heli-roll conveyor is,
A heli-roll conveyor base frame in which unit frames are mutually joined to form a square frame shape;
A conveyor height adjustment and support member which is spaced apart from each other along the four lower surfaces of the heli-roll conveyor base frame, has an upper end fixed to the lower surface of the heli-roll conveyor base frame, and has a lower end fixed to the floor of the work place;
A plurality of odd and even group Heli-roll assemblies, each of which has a plurality of Heli-rolls installed spaced apart from each other on each rotating rod and arranged longitudinally within a unit frame of the Heli-roll conveyor base frame, and each end of which is rotatably connected to a bearing respectively installed on the inner side of the side bar of the unit frame, wherein the inclination directions of the rotating incline rollers of the Heli-rolls installed on the rotating rods adjacent to each other with respect to the longitudinal direction of the unit frame are alternately arranged with a phase difference of 180 degrees;
A conveyor cover installed on the upper surface of the heli-roll conveyor base frame, wherein heli-roll exposure holes are formed at positions corresponding to the installation positions of the heli-rolls;
Odd and even group driven sprockets each installed on one side of the rotating shaft of the odd group heli roll assembly or the other side of the rotating shaft of the even group heli roll assembly;
A chain for operating odd and even group driven sprockets which sequentially mutually connects the odd group driven sprockets or the even group driven sprockets adjacent to each other;
A motor for driving odd and even groups, each of which has a driving sprocket on a rotating shaft and is fixedly installed in opposite directions on one side and the other side bottom of the heli-roll conveyor base frame, and generates power to rotate the odd group heli-roll assembly or the even group heli-roll assembly in a direction determined by a control unit;
An odd-numbered and even-numbered group driving motor power transmission chain that mutually connects one of the odd-numbered group driven sprockets or the even-numbered group driven sprockets, respectively, to which the driving sprocket of the odd-numbered group driving motor or the driving sprocket of the even-numbered group driving motor and the driven sprocket operating chain are not connected; and
An air cargo transport conveyor equipped with a 4-way heli-roll, comprising: a heli-roll control panel having a plurality of switches and controlling the driving direction and driving and stopping time of motors for driving odd and even groups in response to the operating signals of the switches and the execution results of a control program stored therein;
delete In claim 1,
The above heli-roll conveyor is,
An air cargo transport conveyor equipped with a 4-way heli-roll, wherein rubber rollers are respectively installed on vertical bars installed at each of the four corners of the heli-roll conveyor base frame, and further comprising a guide roller for preventing separation by horizontally rotating idle whenever it collides with one side of air cargo being fed in and discharged through a plurality of inlets or discharge ports formed on the heli-roll conveyor base frame, thereby flexibly preventing separation of the air cargo.
In claim 3,
The above heli-roll conveyor is,
An air cargo transport conveyor equipped with a 4-way heli-roll, further comprising: a plurality of push stoppers, each of which is installed spaced apart from one another on both sides of an upper surface of an outlet, including at least one inlet among the inlets of the heli-roll conveyor base frame, and wherein, when a worker manually presses the push shaft while the push shaft is normally inserted into the housing and locked, the push shaft is unlocked within the housing and automatically protrudes upward by the restoring force of an elastic spring due to a situation in which the inlet and outlet of air cargo must be blocked.
In claim 3,
The above heli-roll conveyor is,
An air cargo transport conveyor equipped with a 4-way heli-roll, which further includes a plurality of cargo detection sensors installed on both sides of the upper surface of the discharge and inlet ports of the heli-roll conveyor base frame and detecting the inflow and discharge status of air cargo and transmitting the same to a control panel.
In claim 3,
The above conveyor height adjustment and support member is,
A first support section having a flat cross-section in the shape of a "┗┛", a height-adjusting bolt joint plate formed by bending horizontally at the lower end, a pair of rectangular vertical holes formed spaced apart from each other on the vertical plate, and an upper end welded and fixed to the lower surface of the heli-roll conveyor base frame;
A second support member is installed on the floor surface of a work place, in which a connecting plate having a cross-section in the shape of a “┗┛” is installed on the upper surface of a floor fixing plate, and a pair of rectangular vertical holes are formed spaced apart from each other on the vertical plate of the connecting plate;
A height adjustment bolt having a bolt head positioned on the upper surface of the bottom fixing plate of the second support member and a screw portion connected to penetrate the height adjustment bolt joint plate of the first support member; and
An air cargo transport conveyor equipped with a 4-way heli-roll, comprising: a plurality of support fixtures, each of which is fastened with nuts to bolts penetrating the rectangular holes of the first and second support fixtures, and which maintain a joint state of the first and second support fixtures adjusted by the height adjustment bolts;
In claim 5,
The above heli-roll control panel is,
When the cargo detection sensor detects that air cargo has entered the inlet on one side of the heli-roll conveyor base frame in a straight line with the discharge port, all of the odd and even group driving motors installed on one side and the other side of the heli-roll conveyor base frame are driven clockwise so that all of the odd and even group heli-roll assemblies rotate clockwise and the air cargo entered through the inlet on one side is discharged through the discharge port on the other side.
When it is detected that air cargo has entered through one of the inlets on both sides of the heli-roll conveyor base frame having a phase angle of 90 degrees with the discharge port, the odd-numbered group driving motor installed on one side of the heli-roll conveyor base frame is driven clockwise, and the even-numbered group driving motor installed on the other side is driven counterclockwise, so that the odd-numbered group heli-roll assemblies rotate clockwise, and the even-numbered group heli-roll assemblies rotate counterclockwise, and apply frictional force to the bottom surface of the air cargo so that the air cargo is transported while rotating 90 degrees counterclockwise toward the discharge port.
An air cargo transport conveyor equipped with a 4-way heli-roll, which comprises: when it is detected that air cargo has entered through the other inlet among the inlets on both sides of the heli-roll conveyor base frame having a 90-degree phase angle with the discharge port, the odd-numbered group driving motor installed on one side of the heli-roll conveyor base frame is driven counterclockwise, and the even-numbered group driving motor installed on the other side is driven clockwise, so that the odd-numbered group heli-roll assemblies rotate counterclockwise and apply frictional force to the bottom surface of the air cargo so that the air cargo is transported while rotating 90 degrees clockwise toward the discharge port.
In claim 1,
The above up/down roll bed,
An up/down roll bed frame having a square frame shape;
A plurality of cylindrical rollers arranged at right angles to the direction of movement of air cargo and spaced apart from each other within the above up/down roll bed frame, and having both ends rotatably connected to bearings installed on the inner side of both sides;
A plurality of support frames installed spaced apart from each other between both sides of the up/down roll bed frame so as to block the gap between the above cylindrical rollers;
A pair of up/down units installed between both sides of the above up/down roll bed frame and the floor of the work place, and which raise/lower the above up/down roll bed frame, cylindrical rollers, and support frame;
A plurality of sprockets for transmitting rotational power installed on one end shaft of the above rollers;
A plurality of sprocket coupling chains that alternately and continuously couple the gears of the rotational power transmission sprockets installed on the axles of the adjacent rollers;
A geared motor having a drive sprocket mounted on a rotating shaft and fixedly installed on the upper side of one side of one of the pair of up/down units, and operating in response to an output signal from a control panel to generate rotational power for the rollers;
A geared motor power transmission chain which is connected between any one of the above rotational power transmission sprockets that is not connected to the sprocket coupling chain and the driving sprocket, and which transmits the power of the geared motor to the roller through the rotational power transmission sprocket and the sprocket coupling chain;
A cargo detection sensor installed on the upper surface of the support frame on the inlet and outlet sides of the above up/down roll bed frame, detecting the inlet and outlet status of air cargo and transmitting it to the control panel;
An air cargo transport conveyor equipped with a 4-way heli-roll, comprising: a plurality of push stoppers, which are installed spaced apart from each other on the upper surfaces of the inlet and outlet of the above-mentioned up/down roll bed frame, and are normally in a locked state with the push shaft inserted into the housing, so that when a worker presses the push shaft by hand, the push shaft is unlocked within the housing and automatically protrudes upward by the restoring force of an elastic spring due to a situation in which the inlet and outlet of the air cargo must be blocked.
In claim 8,
The above up/down unit is,
A first frame arranged along both sides of the above up/down roll bed frame and fixedly installed on the floor of the workshop;
A second frame installed spaced apart from the upper portion of the first frame and having its inner side fixed to each side of the up/down roll bed frame;
A pair of X-shaped lifting bars installed between the upper and lower sides of the first frame and the lower and upper sides of the second frame, which are unfolded or folded in response to the lifting and lowering operation of the hydraulic cylinders and lift and lower the up/down roll bed frame through the second frame; and
An air cargo transport conveyor equipped with a 4-way heli-roll, the body of which is supported on the first frame, and the ends of the rods are connected to the axles of the X-shaped lifting bars, and which includes a pair of hydraulic cylinders that generate power required for lifting the second frame and the up/down roll bed frame.

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