KR101419357B1 - Overhead hoist system - Google Patents

Abstract

A transport system is disclosed. A conveying system according to an embodiment of the present invention includes a branching and joining rails for interconnecting a plurality of running rails and a plurality of running rails, and is configured to guide a straight running to a branching area to which a running rail, A rail system in which a straight branch guide and a curve branch guide for guiding a branch run are installed; A carrier unit installed to be able to run on a running rail of a rail system and carrying an object from a starting point to a destination; And a plurality of branch rollers which are installed on the carrier unit so as to be able to move up and down so that either one of the straight running and the branch running is selectively performed. When the carrier unit enters the branching region, And a branching roller unit capable of guiding the branching travel by contacting and supporting the branching rollers disposed in the branching guide.

Description

{OVERHEAD HOIST SYSTEM}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveyance system, and more particularly, to a conveyance system capable of automatically conveying a conveyance object to a destination by a conveyance truck moving along a rail provided on a ceiling.

OHS or OHT (Overhead Hoist Shuttle OR Transport) is installed in large hospitals, semiconductor and flat panel display manufacturing plants where there are many small carry objects to be transported. The ceiling trolley system includes a conveyance truck that runs along a rail installed on a ceiling and conveys an object, and a track having a rail for guiding the running of the conveyance truck.

For example, when such a ceiling trolley system is installed in a semiconductor or display flat panel production line, a traveling rail is installed using a ceiling space in a clean room. The transportation trolley driven on the traveling rail is a semiconductor wafer, a substrate, a mask, And the like are transported between the transporting ports.

The running rail is supported by a support or the like from a ceiling of a clean room, and is made up of a running rail body and a feed rail. The conveying bogie includes a traveling driving unit, which can travel within the traveling rail main body, and receives a signal from the power feeding rail by the power receiving unit.

The ceiling trolley system has branching and joining rails connecting the running rails spaced apart from each other so as to allow movement of the brakes between mutually spaced running rails. The branching and joining rails to which these running rails can be connected are provided with branches There is a confluence section where the section and the bogie are merged.

Such a bogie has a branching roller which can select a traveling along a branching rail in a branching section and a merging section. In the conventional bogie, the position of the branching roller can not be changed quickly and the entry into the branching rail may be delayed. The branching roller can not smoothly change the direction of the branching roller, and the branching roller may be impacted due to the position error of the branching roller, which may cause a failure, and the reliability of the rapid transportation of the logistics can be degraded Problems were raised.

Korean Patent Application Publication No. 10-2009-0023139

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a railway truck which is capable of quickly and smoothly performing a position change and a braking direction switching action of a branching roller for traveling a bogie from a running rail to a branch rail, And to provide a transportation system capable of improving reliability in transportation of goods without causing a failure due to branch travel.

According to an aspect of the present invention, there is provided a railway vehicle comprising: a plurality of running rails; and a branching and joining rails interconnecting the plurality of running rails, wherein the driving rails and the branching and joining rails A rail system in which a straight branching guide and a curve branching guide for guiding a branching run are installed; A carrier unit installed to be able to run on a running rail of the rail system and to transport an object from a starting point to a destination; And a plurality of branch rollers which are installed on the carrier unit so as to be able to move up and down so that either the straight running or the branch running is selectively performed, wherein when the carrier unit enters the branching region, And a branching roller unit capable of guiding the branching travel by contacting and supporting the branching roller disposed at the center among the plurality of branching rollers to the curve branching guide.

Wherein the rail system is disposed in a confluent region of the branching and joining rails spaced apart from the curve branching guide, wherein a part of the branching guide is opposed to the curve branching guide, And a curve joining guide capable of providing a continuous contact passage which can be continuously contactably supported from the curve branching guide.

Wherein the curve branching guide is installed in a ceiling portion of the rail system and the straight branching guide is installed on an inner side wall portion of the rail system and the branching rollers and other branching rollers disposed in the center among the plurality of branching rollers are vertically May be reversed.

Wherein the rail system further comprises a confluent straight guide disposed in an inner sidewall portion of the rail system for guiding a straight run in the confluent region and disposed toward the curve confluence guide, A first branch roller disposed at the center so as to be continuously contacted with the guide and the curve joining guide; A second branch roller spaced apart from the first branch roller so as to be contactably supported by the linear branching guide, And a third branch roller disposed on the other side of the first branch roller.

The straight guide member and the joining straight guide member may include a straight guide member that is supported by the branching roller so as to be capable of rolling, And a rectilinear guide holder connected to the rectilinear guide member to support the branching roller and installed in the inner side wall of the rail system.

Wherein the branching roller unit comprises a roller installing member in which the first branching roller is installed at an upper center and the second and third branching rollers are installed at both lower sides with the first branching roller therebetween; A roller lifting rod that can be elevated below the roller mounting member and capable of lifting and lowering the roller mounting member; And a branching and converging driver for vertically driving the roller lifting rod, wherein the roller lifting and lowering rod is movable up and down.

The branching and confluence driving unit includes a lift pin provided on the roller lifting rod and arranged to cross the lifting direction of the roller lifting rod; An elevating crank that is rotatably installed on the truck and is provided with a hoistway that is movable relative to the hoistway so that the hoist pin is brought into contact with the hoistway so that the hoist pin can be moved up and down by rotational movement; And a lifting motor capable of rotating the lifting crank.

Wherein the branch junction drive unit comprises: a crank pulley provided with the ascending / descending crank, the crank pulley being rotatably installed in the truck; And a driving pulley connected to the crank pulley by a driving belt and rotated by the elevating motor.

Wherein the carrier unit comprises: a plurality of carrier bodies spaced apart from the running rail; A pair of driving wheels installed on the carrier body and moving along the traveling rail; And a pair of support rollers installed on the carrier main body and supported by the running rail to guide movement of the carrier main body.

A slide moving device installed at a lower portion of the carrier unit and capable of moving the object in a deflected direction from a center line of the carrier unit; And a loading platform installed at a lower portion of the slide moving device to pick up and lower the object.

Wherein the loading and unloading apparatus comprises: a chuck gripper unit capable of holding the object; And a lift unit connected to the chuck gripper unit and capable of moving the chuck gripper unit up and down and rotating the chuck gripper unit.

A cover frame which is installed on the plurality of carrier bodies and into which the object is drawn and is placed; And a drop prevention device installed at a lower portion of the cover frame to support the object.

The fall preventing device includes a pair of rotation supporting members which are disposed to face the lower portion of the cover frame and are rotatably coupled to the lower portion of the cover frame to support the object; And a drop prevention driving unit coupled to the cover frame to rotate the rotation support member.

The drop prevention drive unit includes a rotation link having one end rotatably coupled to the lower portion of the rotation support member and the other end rotatably coupled to the cover frame; A support link having one end rotatably coupled to the rotation link and the other end rotatably coupled to the cover frame; And a link driving module having one end coupled to the rotating link and the other end coupled to the cover frame, wherein the link driving module rotates the rotating link to rotate the rotating supporting member.

Wherein the pair of driving wheels are rotatably coupled to the pair of driving wheels so as to allow idle wheels to idly rotate any one of the pair of driving wheels away from the driving rail .

Further comprising: a support holder unit installed on the carrier unit and fixing the carrier unit to the running rail according to a deflected position of the object, wherein the support holder unit is movably installed at a lower portion of the carrier unit, A support holder member which is moved in a direction opposite to a direction in which the object is moved when it is moved and is held in contact with the running rail located in a direction opposite to the moving direction of the object; And a holder moving device installed on the carrier unit to move the support holder member.

According to the present invention, when the carrier unit enters the branching region, the branching rollers disposed at the center among the plurality of branching rollers are contacted with the curve branching guides, so that the branching run can be selected, and the other branching rollers are lowered, Since the straight running can be selected by being held in contact with the guide, it is possible to quickly and smoothly perform the switching of the position of the branching roller for running the vehicle from the running rail to the branching rail and the switching of the direction of the vehicle. And a failure due to the running of the branch is not caused, so that the reliability of the transportation of the logistics can be improved.

1 is a layout diagram of a transport system according to an embodiment of the present invention.
Fig. 2 is a running state diagram of the lane departing apparatus and the joining region of Fig. 1. Fig.
3 is a cross-sectional view taken along the line I-I in Fig.
4 is a cross-sectional view taken along line II-II in Fig.
5 is a detailed cross-sectional view of a rail system according to an embodiment of the present invention.
6 is a side view of the ladle apparatus of Fig.
7 is a sectional view taken along the line III-III in Fig.
8 is a cross-sectional view of a running rail in which a lading apparatus according to an embodiment of the present invention is shown.
9 is a side view of a lane departing apparatus of a transportation system according to an embodiment of the present invention.
10 is an enlarged view of the carrier unit of Fig.
11 is a plan view of the carrier unit of Fig.

In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

Fig. 1 is a layout diagram of a transportation system according to an embodiment of the present invention, Fig. 2 is a running state view of the lane departing apparatus and the joining region of Fig. 1, Fig. 3 is a cross- FIG. 4 is a cross-sectional view taken along line II-II in FIG. 2, FIG. 5 is a detailed cross-sectional view of a rail system according to an embodiment of the present invention, 7 is a sectional view taken along the line III-III in Fig.

1 to 4, a conveyance system according to an embodiment of the present invention includes a rail system 101 installed on a ceiling, a rail system 101 installed to run on a rail system 101, (Not shown).

First, as shown in Fig. 1, the rail system 101 includes a straight section 102, a curve connecting section 103, a branching and confluence section 104, a conveying section for loading and unloading the object 100 Port 105 and may include various sensors, a power supply, a communication device, and the like, not shown, for controlling the running of the vehicle 140.

Hereinafter, the transport system according to the present embodiment will be described with reference to Figs. 1 to 7. Fig.

2 schematically shows the branching travel of the ladle truck by the branching roller unit 150, the straight travel in the branching region, and the straight travel in the joining region. The rollers of the branching roller unit 150, It is marked in black. The arrows indicate the running directions of the truck.

The rectilinear section 102 is a section in which the lane departing apparatus 140 can move straight and the curve connecting section 103 is a section connecting the rectilinear section 102 arranged in parallel and spaced apart. The confluence section 104 is a section capable of moving the truck 140 from the separated branching zone 107 to the confluence zone 108.

The traveling rails 110 may be disposed in the straight section 102 of the rail system 101 and may include branching and joining sections that interconnect a plurality of traveling rails 110 spaced apart from the branching and merging section 104, The rails 111 may be arranged.

A straight branching guide 112 for guiding the straight running and a curve branching guide 113 for guiding the branching travel are provided in the branching area 107 to which the running rail 110 and the branching and joining rail 111 are connected, Respectively. The linear guide member 112 and the curved guide member 113 may be provided with sufficient contact surfaces to ensure the grounding force of the branching rollers 151 and 152 in the horizontal direction. This contact surface is disposed to face the ground surface of the support roller 145, which will be described later, with respect to the corresponding rail member 110 at the time of a branch running or a straight running of the carriage apparatus 140. [

The rail system 101 according to the present embodiment may include a straight rail main body 115 and a branch rail main body 116. The straight rail main body 115 is provided with a rail member 110 disposed along the running rail 110 in the branching area 107 for straight running corresponding to the straight branching guide 112, May be provided in the branching area 107 with the rail member 110 connected to the straight rail main body 115 and arranged along the branching rail for branching travel corresponding to the curve branching guide 113. [

The branching and joining rails 111 are disposed in the aforementioned branching and joining sections 104. The branching and joining rails 111 according to the present embodiment are formed by connecting the running rails 110 arranged in parallel to each other in an inclined manner to form N Type traveling track can be formed. The straight running, the branched running, and the converging running of the branching and merging area 108 of the balancing device 140, which will be described later, mainly assume the N-type running track.

The railroad car 101 installed in the rail system 101 according to the present embodiment is provided with a carrier unit 110 installed to be able to run on the running rail 110 of the rail system 101, (141), and a branching roller unit (150) having a branching roller (151) that is rotated together to selectively perform either the straight running or the branching running.

The carrier unit 141 according to this embodiment includes a plurality of carrier main bodies 142 that are installed to be spaced apart from the running rail 110 and a plurality of carrier main bodies 142 installed on the respective carrier main bodies 142, And a pair of driving wheels 144 that are disposed on both sides of the carrier main body 142 and are supported by the side walls of the traveling rail 110 so as to support the carrier main body 142, And a support roller 145 that can guide the movement of the recording medium. The carrier body 142 is provided with a traveling motor 146 capable of driving the driving wheel 144 and a moving bar 148 coupled to the cover frame 147 on which the object 100 is to be placed. The movable bar 148 can fix the cover frame 147 to the carrier unit 141. [

The carrier unit 141 is installed on a running rail 110 of a rail system 101 mounted on a ceiling of a factory facility or a building that requires automatic transportation of goods in a manufacturing process of a product such as a semiconductor and a display manufacturing process, So that the object 100 can be carried by the automatic running from the starting point to the destination. When the carrier unit 141 travels in the branching zone 107 in which the branching and joining rails 111 are connected to the running rail 110, the branching roller unit 150 can execute branching driving .

According to the present embodiment, the connecting portions of the straight rail main body 115 and the branch rail main body 116, which are disposed in the branching region 107 and the confluence region 108, 117 may exist only on one side. That is, the connecting portion of the straight rail main body 115 to which the branch rail main body 116 is connected can not be provided with the rail member 117. The carrier unit 141 which travels through the branching region 107 can be driven to contact the one of the left and right rail members 117 on one side and the carrier unit 141 can be driven It is possible to make a straight run using one rail member 117 of the straight rail main body 115 and to perform branching travel using the other rail member 117 of the branch rail main body 116. [

The rotation of the carrier unit 141 may be caused by tilting around the ground plane of the support roller 145 due to the absence of any one of the rail members 117, By providing a moment that balances the reaction force applied to the branching roller 151 from the contact surface of the curve branching guide 113 or the curve joining guide 131 which will be described later, The derailment of the torsion spring can be blocked. The carrier unit 141 can smoothly run the branching region 107 by one of the rail members 117. [

The branching roller unit 150 provided on the upper side of the carrier unit 141 has a plurality of branching rollers 151, 152 and 153 which are rotatably installed in the carrier unit 141 and are moved in the vertical direction, When the unit 141 enters the branching region 107 or the confluence region 108, any one of the plurality of branching rollers 151, 152 and 153 is guided by the rectilinear branching guide 112, the curve branching guide 113, The curve joining guide 131 and the joining / straightening guide 132, as shown in FIG.

The plurality of branching rollers 151, 152 and 153 can be raised or lowered to the carrier unit 141 so that either the straight running or the branched running can be selectively performed. When entering the branching region, the branching roller 151 arranged at the center among the plurality of branching rollers 151, 152, 153 is contacted with the curve branching guide 113, and branching travel can be selected. Further, the other branching roller 152 is lowered and is contacted with and supported by the straight-going branching guide 112, whereby the straight running can be selected.

The curve branching guide 113 is installed on the ceiling portion of the rail system 101 and the linear branching guide 112 is installed on the inner side wall of the rail system 101. The curve branching guide 113, The branching rollers 151 and the branching rollers 152 and 153 disposed at the center among the plurality of branching rollers 151, 152 and 153 arranged so as to be in contact with the respective branching rollers 112 are opposite to each other in the up- .

That is, the branching rollers 151 arranged at the center among the branching roller units 150 according to the present embodiment are arranged so as to be vertically raised and lowered at the center upper portion of the carrier unit 141 and are guided along the curve branching guides 113 to be guided And can be continuously guided by the curve merge guide 131 described later.

The rail system 101 according to the present embodiment is disposed in the confluence region 108 of the branching and joining rails 111 apart from the curve branching guide 113, A tapering roller 151 that is disposed at the center of the plurality of branching rollers 151, 152 and 153 so as to be opposed to each other can provide a continuous contact passage 134 that can be continuously contactably supported from the curve branching guide 113 The above-described converging straight guide 132 disposed on the inner sidewall portion of the rail system 101 to guide the straight running in the merging region 108 toward the curve joining guide 131, As shown in FIG.

The curve branching guide 113 and the curve combining guide 131 according to the present embodiment are installed from the branching region 107 to the confluence region 108. The curving branching guide 113 and the curve joining guide 131 are disposed at the rear end of the curve branching guide 113, Can be disposed substantially parallel to the center of the ceiling of the branch rail main body 116 to form the continuous contact passage 134 described above. The branching rollers 151 arranged at the center among the plurality of branching rollers 151, 152 and 153 can ascend at the upper center of the carrier unit 141 and pass through the continuous contacting passage 134, Can be continuously contact-supported while being transferred from the branching guide (113) to the curve joining guide (131).

The straight guide member 112 and the joining straight guide member 132 according to the present embodiment are provided with a straight guide member 135 which is supported by the branching rollers 152 and 153 so as to be capable of rolling, And a straight guide holder 136 connected to the straight guide member 135 so as to be able to support the rail system 101 and installed on the inner side wall of the rail system 101. The branching rollers 152 and 153 are disposed on the straight guide holder 136 disposed horizontally, so that the branching rollers 152 and 153 can stably contact the straight guide member 135 and proceed.

In the above-described rail system 101, the straight running can be performed by the branching and guiding by the curve branching guide 113 and the curve joining guide 131, and by the straightening branching guide 112 and the joining straightening guide 132 A plurality of branching rollers 151, 152 and 153 according to the present embodiment arranged so as to correspond to the first and second branching rollers 151 and 152 are disposed in the center so as to be continuously contacted with the curve branching guide 113 and the curve joining guide 131, A second branch roller 152 spaced apart from the first branch roller so as to be held in contact with the linear branching guide 112 and installed at a lower side of the first branch roller 152; And may include a third branch roller 153.

According to the present embodiment, the first branching roller 151 disposed at the center among the plurality of branching rollers 151, 152, 153 is raised and guided along the curve branching guide 113, The roller 151 in the first branch is contacted with the curve joining guide 131 while passing through the continuous contact passage 134 between the curve branching guide 113 and the curve joining guide 131 so that converging travel can proceed. The second and third branch rollers 152 and 153 are contacted with the rectilinear branching guide 112 and the confluent rectilinear guide 132 along with the falling of the roller 152 in the first branch.

Hereinafter, components for lifting and lowering the branching roller unit 150 according to the present embodiment will be described.

The branching roller unit 150 according to the present embodiment is provided with the first branching roller 151 at the center upper portion and the second and third branching rollers 152 and 153 via the first branching roller 151 A roller raising and lowering rod 156 that can be raised and lowered below the roller raising member 155 to raise and lower the roller raising member 155, And a branch junction driving unit 160 for vertically driving the roller lifting rod 156 so as to be able to move up and down.

The branch junction driving unit 160 includes a lift pin 161 that is provided on the roller lifting rod 156 and is arranged so as to cross the lift direction of the roller lifting rod 156, A lifting and lowering crank 162 provided with a lift shaft 163 that is movable relative to the lifting and lowering pin 161 so as to move the pin 161 up and down by rotational motion, And a lifting motor 165.

The branch junction driving unit 160 according to this embodiment is an element that can rotate the lifting crank 162. The branching driving unit 160 includes a lifting crank 162 and a crank pulley 167 And a drive pulley 169 connected to the crank pulley 167 by a drive belt 168 and rotated by a lift motor 165. [

The branching and coupling drive unit 160 according to the present embodiment is configured such that the drive pulley 169 is rotated by the elevation motor 165 to rotate the elevation crank 162 together with the crank pulley 167 to rotate the elevation crank 162 The lifting pin 161 movable along the hoistway 163 can be moved relative to the lifting pin 161 so that the roller lifting rod 156 coupled to the lifting pin 161 can be lifted and lowered.

The roller lifting rod 156 according to the present embodiment can be installed so as to be able to move up and down within the lifting frame 157. The roller lifting member 155 is coupled to the lifting and supporting member 159, 159 may be vertically movably installed on an elevation guide 158 installed on the lifting frame 157. [

Hereinafter, other general components that can be installed in the ladle truck of the transportation system according to the present embodiment will be described in detail.

8 is a cross-sectional view of a running rail according to an embodiment of the present invention, FIG. 9 is a side view of a truck of the transport system according to an embodiment of the present invention, FIG. 10 is a cross- Fig. 11 is a plan view of the carrier unit of Fig. 10; Fig.

8 to 11, the carriage apparatus 140 according to the present embodiment is mounted on the lower portion of the carrier unit 141 as described above, so that the object 100 is supported by the center line of the carrier unit 141 And a loading and elevating device 175 installed at a lower portion of the slide moving device 170 and capable of picking up and dropping the object 100. [

The slide moving unit according to the present embodiment can have a multi-step slide structure so that the object 100 suspended from the loading / unloading device 175 can be moved outward through the opening of the cover frame 147, The length of the carrier unit 141 can be extended laterally from the lower center of the carrier unit 141.

The loading and unloading apparatus 175 according to the present embodiment includes a chuck gripper unit 176 capable of holding the object 100 and a chuck gripper unit 176. The chuck gripper unit 176 includes a wire wound around the chuck gripper unit 176, And an elevation unit 177 which can rotate the elevation unit 177 and move it up and down. The elevating unit 177 is a hoist apparatus using a winding apparatus in which a generally known winding wire is wound. Although not shown in the figure, a winding motor in which a winding wire is wound by a winding motor installed therein rotates a winding drum, And the chuck gripper unit 176 can be lifted and lowered by the winding wire.

The elevating unit 177 according to the present embodiment may be provided with a twisting device capable of rotating the chuck gripper unit 176. [ Although not shown, the twist device includes a twist motor and a speed reducer capable of rotating the elevation unit 177, which is capable of aligning the rotation of the object 100 by rotating the object 100 about a vertical axis .

The carrier unit 141 according to the present embodiment includes a cover frame 147 on which a plurality of carrier bodies 142 are provided and to which the object 100 can be inserted and placed, And a drop prevention device 180 installed at a lower portion of the apparatus 100 to block the falling of the object 100. [

The cover frame 147 has a frame structure capable of forming openings through which the object 100 can pass on the side and the bottom. The cover frame 147 can be installed at the lower portion of the carrier unit 141 by being coupled to the above-described moving bar 148. The fall preventing device 180 installed under the cover frame 147 can be attached to the object 100 can be placed on the cover frame 147 and the separation of the object 100 that can be shaken when the cover frame 147 moves can be blocked to provide a stable transport structure for the object 100. [

The fall preventing device 180 according to the present embodiment is arranged to be opposed to the lower portion of the cover frame 147 and is provided at the lower portion of the cover frame 147 to support the object 100 by allowing the object 100 to be pulled, A pair of rotation support members 181 that are rotatably coupled and a fall prevention driving unit 185 that is coupled to the cover frame 147 to rotate the rotation support member 181. [ The pair of rotation support members 181 according to the present embodiment are rotated so that the object 100 can be drawn in and out of the cover frame 147. [

That is, the object 100 is moved in the cover frame 147 by the pair of rotation support members 181, which are rotated by the drop prevention drive unit 185 at the lower part of the cover frame 147 and come into contact with the object 100 And can be stably supported.

The drop prevention drive unit 185 according to the present embodiment includes a rotation link 186 having one end rotatably coupled to the lower portion of the rotation support member 181 and the other end rotatably coupled to the cover frame 147, A support link 187 whose one end is rotatably engaged with the rotation link 186 and the other end is rotatably engaged with the cover frame 147 and the other end is coupled to the rotation link 186, And a link drive module 188 which is coupled to the rotation support member 147 and which can rotate the rotation link 186 to rotate the rotation support member 181. [

The solenoid 190 of the solenoid 190 is coupled to the rotating link 186 and the solenoid 192 is coupled to the cover frame 186. [ 147 when the swing rod 192 is pulled into the sol body 191 and the rotary link 186 connected to the support link 187 is rotated such that the rotary support 186 is rotated by the rotary link 186, (181) can be rotated to support the object (100). On the other hand, when the soled rod 192 protrudes from the sol body 191, the rotary link 186 is rotated counterclockwise so that the rotary support member 181 is rotated in the opposite direction and the object 181 100 can be released.

The object 100 supported by the fall preventing device 180 and supported by the cover frame 147 can be moved to the destination by traveling of the carrier unit 141 and can be moved from the destination transport port 105 to the outside Lt; / RTI >

The carrier unit 141 according to the present embodiment has the same curved section as that of the curve connecting section 103 because of the difference in position of the rail members 110 installed on both sides of the curved section, The driving range of the outer driving wheels 144 is longer than the inner driving wheels 144 so that the outer driving wheels 144 are behind the inner driving wheels 144, 144 may be driven to the driving position of the driving wheels.

In order to prevent the driving wheel of the carrier unit 141 from being pushed, a pair of driving wheels 144 are rotatably coupled to the pair of driving wheels 144, and a pair of driving wheels 144 The idle wheel 199 may be configured to idle any one of the driving wheels 144 to prevent the driving wheels 144 from being pushed due to a difference in the running radius of the other driving wheels 144.

The idle wheel 199 travels along a spacing member that can be poured on the outer rail member 110 of the curve section so that the driving wheel 144 is spaced apart from the rail member 110 And the idle wheel 199 that is not transmitted with the driving force that is moved along the spacing member to the driving force of the inner driving wheel 144 can naturally curve the curve section.

The carriage device 140 according to the present embodiment is installed in the lower portion of the carrier unit 141 so as to block the rotation of the carrier unit 141 according to the deflected position of the object 100 moved by the carrier unit 141 And a support holder unit 250 that supports the support holder 250.

The object 100 carried on the lower portion of the carrier unit 141 can be loaded from the side of the cover frame 147 when the carrier unit 141 stops and can be moved laterally and unloaded .

The rail system 101 may be provided with various transport ports 105 depending on the type of the object 100 that can load and unload the object 100. The object 100 may be a slide moving device 170, < / RTI > The center of gravity of the carrier unit 141 can be moved and the carrier unit 141 can be moved to the side of the one side rail member 110 of the traveling rail 110. In this case, (Not shown).

The other one of the two driving wheels 144 of the carrier unit 141 can be heard about the center of gravity of the other one of the driving wheels 144. The carrier unit 141 is rotated to move the object 100 ) Can be changed. When the carrier unit 141 is rotated, the object 100 can be moved to a position where it is lowered from the predetermined moving position to generate an error.

According to the present embodiment, however, since the support holder unit 250 is provided below the carrier unit 141 to prevent rotation of the carrier unit 141 before the object 100 is laterally moved, The object 100 may be moved to a predetermined moving position and unloaded. That is, the support holder unit 250 can be supported by the rail member 110 positioned opposite to the direction in which the object 100 is moved, and can prevent the rotation of the carrier unit 141. [ That is, the support holder unit 250 can block lifting of either one of the driving wheels 144 from the rail member 110.

The support holder unit 250 provided so as to prevent the rotation of the carrier unit 141 is provided with a support holder member 251 which is movably provided to the carrier unit 141 and can be supported by the run rail 110 And a carrier unit 141 for moving the support holder member 251 in a direction in which the support holder member 251 is movably installed and which intersects the traveling direction of the carrier unit 141 with respect to the running rail 110 And a holder movement driving unit 260 installed on the carrier unit 141 and moving the support holder member 251 along the holder movement guide unit 255 .

The support holder unit 250 according to this embodiment can move the holder holder member 251 along the holder movement guide unit 255 by the holder movement drive unit 260, Side rail member 110 of the running rail 110, which is installed as far as possible. For example, when the object 100 is moved to the right by the slide moving device 170, the support holder member 251 is moved to the left-side rail member 110 and supported on the rail member 110 , It is possible to prevent rotation of the carrier unit 141 due to the movement of the center of gravity.

The support holder member 251 according to the present embodiment includes a side wall support portion 252 supported on the side wall of the rail member 110 and a rotation support portion 252 provided on the bottom portion of the rail member 110, Prevention part 253. The end of the support holder member 251 can be formed so as to conform to the end surface of the rail member 110. The side wall support portion 252 is configured such that when the support holder member 251 is moved toward the rail member 110 side, The rotation preventing portion 253 is supported by the bottom surface portion 222 of the rail member 110 to limit the rotation of the support holder member 251 .

The holder movement guide portion 255 according to the present embodiment includes a holder moving member 256 which is coupled to the support holder member 251 and is moved by the holder movement driving portion 260, And a linear guide 257 for guiding the movement of the movable member 256. [ The holder moving member 256 is coupled to the linear guide 257 so that the upper end thereof is connected to the female screw 265 of the ball screw module 263 to be described later and the lower end thereof is coupled to the support holder member 251.

The holder movement drive unit 260 capable of moving the holder movement member 256 is connected to the holder movement motor 261 provided to the carrier unit 141 and the holder movement member 256, And a ball screw module 263 which is driven by the guide member 262 to move the holder moving member 256.

When the holder moving motor 261 is rotated so that the screw round bar 264 of the ball screw module 263 is rotated, the arm screw 265 can be moved on the screw round bar 264, The connected holder moving member 256 is moved so that the supporting holder member 251 can be moved toward the rail member 110 side.

According to the present embodiment, the holder moving motor 261 can be disposed in parallel with the ball screw module 263 and spaced apart from the ball screw module 263 to rotate the screw round bar 264. To this end, the holder movement drive unit 260 includes a drive pulley 266 coupled to the rotation shaft of the holder movement motor 261 and connected to the drive pulley 266 by a drive belt 267, And a driven pulley 268 coupled to the screw round bar 264 of the screw 263.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

100: Object 101: Rail system
102: straight ahead section 103: curve connection section
104: branching and confluence period 105:
107: branching region 108: junction region
110: running rail 111: branching and joining rail
112: Straight branch guide 113: Curve branch guide
115: straight rail main body 116: branch rail main body
117: Rail member 131: Curve joining guide
132: joining straight guide 134: continuous contact passage
135: straight guide member 136: straight guide holder
140: Lading device 141: Carrier unit
142: carrier body 144: drive wheel
145: support roller 146: traveling motor
147: Cover frame 148: Moving bar
150: branching roller unit 151, 152, 153:
155: roller installing member 156: roller lifting rod
160: branch junction drive unit 161: lift pin
162: ascending / descending crank 163:
165: lift motor 167: crank pulley
168: drive belt 169: drive pulley
170: Slide moving device 175: Loading and unloading device
176: Chuck gripper unit 177: Lift unit
180: Fall prevention device 181:
185: drop prevention driving unit 186: rotation link
187: Support link 188: Link drive module
190: Solenoid 191: Sol Body
192: Sol Road 199: Children wheel
250: support holder unit 251: support holder member
252: side wall supporting portion 253:
255: holder movement guide part 256: holder movement member
257: Linear guide 260:
261: Holder moving motor 263: Ball screw module
264: screw round bar 265: female screw
266: drive pulley 267: drive belt
268: Follow pulley

Claims (16)

A branching guide for guiding a straight running to a branching area to which the traveling rail and the branching and joining rails are connected, and a branching traveling guide for guiding the traveling of the branching and joining rails A rail system in which a curve branching guide is installed;
A carrier unit installed to be able to run on a running rail of the rail system and to transport an object from a starting point to a destination; And
And a plurality of branch rollers which are installed on the carrier unit so as to be able to move up and down so that either the straight running or the branch running is selectively carried out, wherein when the carrier unit enters the branching region, And a branching roller unit capable of guiding the branching traveling by contacting and supporting the branching rollers disposed at the center of the branching rollers of the branching rollers with the curve branching guide. The method according to claim 1,
Wherein the rail system is disposed in a confluent region of the branching and joining rails spaced apart from the curve branching guide, wherein a part of the branching guide is opposed to the curve branching guide, Further comprising a curve joining guide capable of providing a continuous contact passage which can be continuously contactably supported from the curve branching guide. 3. The method of claim 2,
Wherein the curve branching guide is installed in a ceiling portion of the rail system, the straight branching guide is installed on an inner side wall portion of the rail system,
Wherein the branching rollers and the branching rollers disposed at the center among the plurality of branching rollers are arranged in opposite directions in the vertical direction. The method of claim 3,
Wherein the rail system further comprises a converging straight guide disposed in an inner sidewall portion of the rail system to direct the straight running in the merging region and disposed toward the curve joining guide,
Wherein the plurality of branching rollers comprise:
A first branch roller disposed at the center so as to be continuously contacted with the curve branching guide and the curve joining guide;
A second branch roller spaced apart from the first branch roller so as to be contactably supported by the linear branching guide, And
And a third branch roller provided on the other side lower side of the first branch roller. 5. The method of claim 4,
Wherein the straight-going branching guide and the merging straight-
A straight guide member which is supported by the branching roller so as to be capable of rolling; And
And a straight guide holder connected to the straight guide member so as to support the branch roller and installed in an inner side wall of the rail system. 5. The method of claim 4,
Wherein the branching roller unit comprises:
A roller installing member in which the first branching roller is installed at an upper center and the second and third branching rollers are installed at both lower sides with the first branching roller therebetween;
A roller lifting rod that can be elevated below the roller mounting member and capable of lifting and lowering the roller mounting member; And
Further comprising a branching and converging driver for vertically driving the roller lifting rod, wherein the roller lifting rod is vertically movable. The method according to claim 6,
The branch junction driving unit includes:
A lift pin provided on the roller lifting rod, the lift pin being disposed to cross the lifting direction of the roller lifting rod;
An elevating crank that is rotatably installed in the ladle truck and is provided with a lift passage which is in contact with the lift pin so that the lift pin can be moved up and down by rotational movement; And
And a lift motor capable of rotating the lift crank. 8. The method of claim 7,
The branch junction driving unit includes:
A crank pulley provided with the lifting crank, the crank pulley being rotatably installed in the lifting and lowering device; And
Further comprising a drive pulley connected to the crank pulley by a drive belt and rotated by the lift motor. 3. The method of claim 2,
Wherein the carrier unit comprises:
A plurality of carrier bodies spaced apart from the running rail;
A pair of driving wheels installed on the carrier body and moving along the traveling rail; And
And a pair of support rollers mounted on the carrier main body and supported by the running rail to guide the movement of the carrier main body. 10. The method of claim 9,
A slide moving device installed at a lower portion of the carrier unit and capable of moving the object in a deflected direction from a center line of the carrier unit; And
Further comprising a loading and unloading device installed at a lower portion of the slide moving device and capable of picking up and dropping the object. 11. The method of claim 10,
The loading /
A chuck gripper unit capable of holding the object; And
And a lift unit connected to the chuck gripper unit and capable of moving the chuck gripper unit up and down and rotating the chuck gripper unit. 12. The method of claim 11,
A cover frame which is installed on the plurality of carrier bodies and into which the object is drawn and is placed; And
Further comprising: a fall preventing device installed at a lower portion of the cover frame to support the object. 13. The method of claim 12,
The drop prevention device includes:
A pair of rotation support members disposed to face the lower portion of the cover frame and rotatably coupled to a lower portion of the cover frame to support the object; And
And a drop prevention driving unit coupled to the cover frame to rotate the rotation support member. 14. The method of claim 13,
The drop prevention driving unit includes:
A rotary link having one end rotatably coupled to the lower portion of the rotation support member and the other end rotatably coupled to the cover frame;
A support link having one end rotatably coupled to the rotation link and the other end rotatably coupled to the cover frame; And
And a link drive module having one end coupled to the rotating link and the other end coupled to the cover frame, the link driving module being capable of rotating the rotating link to rotate the rotating supporting member. 10. The method of claim 9,
Wherein the pair of driving wheels are rotatably coupled to the pair of driving wheels so as to allow idle wheels to idly rotate any one of the pair of driving wheels away from the driving rail Further comprising: 16. The method of claim 15,
Further comprising a support holder unit installed on the carrier unit and fixing the carrier unit to the running rail according to the deflected position of the object,
The support holder unit includes:
A support holder member movably installed at a lower portion of the carrier unit and movable in a direction opposite to a direction in which the object is moved when the object is moved to be contacted with the running rail in a direction opposite to a moving direction of the object; And
And a holder moving device installed on the carrier unit to move the support holder member.

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