US20170282937A1 - Overhead conveyor - Google Patents

Overhead conveyor Download PDF

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Publication number
US20170282937A1
US20170282937A1 US15/134,964 US201615134964A US2017282937A1 US 20170282937 A1 US20170282937 A1 US 20170282937A1 US 201615134964 A US201615134964 A US 201615134964A US 2017282937 A1 US2017282937 A1 US 2017282937A1
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US
United States
Prior art keywords
monorail
friction
friction plate
overhead conveyor
hanger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US15/134,964
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English (en)
Inventor
Eok Sik YOU
Young Kyu Son
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sewoong Machinery Co Ltd
Original Assignee
Sewoong Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sewoong Machinery Co Ltd filed Critical Sewoong Machinery Co Ltd
Assigned to SEWOONG MACHINERY CO., LTD. reassignment SEWOONG MACHINERY CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SON, YOUNG KYU, YOU, EOK SIK
Publication of US20170282937A1 publication Critical patent/US20170282937A1/en
Abandoned legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B3/00—Elevated railway systems with suspended vehicles
    • B61B3/02—Elevated railway systems with suspended vehicles with self-propelled vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B13/00—Other railway systems
    • B61B13/04—Monorail systems

Definitions

  • the present invention relates generally to an overhead conveyor and, more particularly, to an overhead conveyor in which a hanger for carrying an object runs along a monorail in two running modes.
  • an overhead conveyor is a mechanical apparatus that can move an object carried on a hanger using a conveyor.
  • U.S. Pat. No. 5,398,617 proposes an overhead conveyor capable of running a carriage along a rail using a drive wheel driven by an electric motor.
  • the present invention has been made keeping in mind the above problems occurring in the related art, and the present invention is intended to propose an overhead conveyor and, more particularly, to an overhead conveyor in which a hanger for carrying an object runs along a monorail in two running modes.
  • an overhead conveyor including: a monorail disposed on an upper side of a working space; a driving trolley having a drive wheel rolling along the monorail and a motor driving the drive wheel; a driven trolley disposed to be spaced apart from the driving trolley on the monorail and having a driven wheel rolling along the monorail; a hanger operatively suspended from the monorail through a first frame of the driving trolley and a second frame of the driven trolley so as to carry an object thereon; a first friction plate disposed on one side of a flat upper end of the hanger; a plurality of first jigs extending from the upper side of the working space towards the first friction plate along the monorail; and a friction drive unit having a friction drive wheel disposed on a lower end of the first jig so as to convey the first friction plate in a running direction and a drive motor driving the friction drive wheel.
  • the hanger can be run along the monorail through driving of the driving trolley and/or friction drive unit.
  • the overhead conveyor may include: a second friction plate disposed one the other side of the flat upper end of the hanger in such a manner as to be arranged parallel with the first friction plate relative to the monorail; a plurality of second jigs extending from the upper side of the working space towards the second friction plate along the monorail; and a support wheel disposed on a lower end of the second jig so as to convey the second friction plate in a running direction.
  • the driving trolley may further include a toggle clamp.
  • the friction drive unit may include a displacement means displacing the friction drive wheel.
  • the support wheel may include a displacement means displacing the support wheel.
  • the friction plate may have a plane part and downwardly-inclined surfaces on opposite ends of the plane part.
  • the plane part of the friction plate may extend longer than a distance between two adjacent friction drive wheels or support wheels.
  • the hanger for carrying an object in the overhead conveyor, can run along a monorail in two driving modes.
  • the hanger can run using an electric monorail system (EMS) and/or a friction drive system (FDS).
  • EMS electric monorail system
  • FDS friction drive system
  • the present invention provides an advantage of implementing a running mode through a friction drive system based on the existing electric monorail system only with simple configuration.
  • the hanger upon the breakage of the driving trolley, the hanger can be run along the monorail by the friction drive unit, and upon the breakage of the friction drive unit, the hanger can be run along the monorail by the driving trolley, thereby facilitating a continuous, stable assembly process without interruption of an assembly line.
  • FIG. 1 is a plan view of an overhead conveyor according to a preferred embodiment of the present invention
  • FIG. 2 is a front view of the overhead conveyor
  • FIG. 3 is a side view of the overhead conveyor.
  • the present invention relates to a suspended-type overhead conveyor 1 that can run a hanger 400 carrying an object thereon along a monorail 100 hanging from the ceiling on an upper side of a working space in two running modes.
  • the overhead conveyor 1 includes a monorail 100 hanging from a ceiling, two trolleys 210 and 220 running along the monorail 100 , and a hanger 400 coupled to the two trolleys 210 and 220 to carry an object thereon.
  • the two trolleys 210 and 220 may be spaced apart from and connected to each other by means of a cross-piece, or otherwise may be disposed on an upper side of the hanger 400 in a spaced manner.
  • the monorail 100 is hung from and fixed to a support or the ceiling by means of a plurality of rail-support brackets 110 , and may be an I-type rail having upper and lower horizontal flanges.
  • the driving trolley 210 and the driven trolley 220 are disposed to be spaced apart on the monorail 100 .
  • the driving trolley 210 includes a drive wheel 211 rolling on an upper flange of the monorail 100 , a motor 212 shaft-coupled to the drive wheel 211 , and a toggle clamp 213 .
  • the motor 212 is shaft-coupled to the drive wheel so as to enable the drive wheel to be rotated.
  • the toggle clamp 213 is an element that can transmit and/or interrupt a drive force of the motor 212 to the drive wheel 211 . It is noted that the element is not limited to the toggle clamp, but may be replaced with other power transmission that is capable of transmitting or interrupting the drive force of the motor to the drive wheel.
  • the drive force of the motor 212 is not transmitted to the drive wheel 211 .
  • the drive wheel 211 may be driven by other external force source, rather than the motor.
  • the driven trolley 220 is disposed on the monorail 100 in such a manner as to be spaced at a certain distance apart from the driving trolley 210 by a cross-piece.
  • the driven trolley has a driven wheel 221 rolling on the upper flange of the monorail 100 .
  • the drive wheel 211 and the driven wheel 221 may be formed from rubber or urethane synthetic resin in order to prevent noise occurring due to friction with the monorail.
  • the driving trolley 210 is fixed to one end of the cross-piece or the hanger through a first frame 214 extending downwards from the monorail 100
  • the driven trolley 220 is fixed to the other end of the cross-piece or the hanger through a second frame 224 extending downwards from the monorail 100 . That is, in the overhead conveyor, the hanger 400 carrying an object thereon is suspended from and runs along the monorail 100 .
  • the hanger 400 has arms 410 rotatably attached to opposite ends of a flat upper end thereof for loading an object such as a vehicle body.
  • the overhead conveyor can load and carry an object only with the operation of the driving trolley.
  • the driven trolley 220 also runs along the monorail 100 based on the motion of the driving trolley 210 while maintaining a constant distance from the driving trolley.
  • the hanger 400 runs along the monorail 100 in an arrow direction in the above-mentioned driving manner. This driving manner is implemented based on an electric monorail system.
  • the overhead conveyor cannot perform a series of subsequent processes on the vehicle body loaded on the hanger 400 moving along the monorail.
  • a replaceable sub-rail cannot be installed.
  • the overhead conveyor can be operated only after the motor is replaced or repaired.
  • the present invention proposes a solution to reduce dependence upon the driving trolley 210 driving the overhead conveyor 1 mounted on the monorail 100 .
  • the present invention provides two friction plates 500 and 500 ′ on opposite sides of a flat upper end of the hanger 400 . As illustrated, two friction plates 500 and 500 ′ are arranged parallel with the monorail 100 .
  • the friction plates 500 and 500 ′ each have a plane part 511 fixed to the flat upper end of the hanger 400 and downwardly-inclined surfaces 512 on opposite ends of the plane part 511 .
  • the plane part 511 should be equal to or longer than an object-storage pitch of the hanger.
  • the overhead conveyor includes a friction drive unit 600 , which has a friction drive wheel 610 in contact with an upper surface of the first friction plate 500 disposed on one side so as to forcedly carry the first friction plate 500 in a running direction, a drive motor 620 driving and rotating the friction drive wheel 610 , and a displacement means (not shown) displacing the friction drive wheel 610 .
  • the friction drive unit 600 is disposed on a lower end of a first jig 121 .
  • the displacement means detects contact between the friction drive wheel 610 and the first friction plate 500 and displaces the height of the friction drive wheel 610 based on the detected result.
  • the displacement means may be an elastic spring, a piezo-actuator, or the like.
  • the overhead conveyor includes a support wheel 710 in contact with an upper surface of the second friction plate 500 ′ disposed on the other side so as to guide the second friction plate 500 ′ in the running direction.
  • the support wheel 710 is rotatably disposed on a lower end of a second jig.
  • the support wheel 710 serves to enable the hanger 400 to maintain a parallel position without tilting to one side during rotation of the friction drive wheel 610 .
  • the support wheel 710 may separately include a displacement means which can displace the height of the support wheel 710 according to contact between the support wheel 710 and the second friction plate 500 ′.
  • the displacement means may be an elastic spring, a piezo-actuator, or the like.
  • the friction drive wheel 610 and/or the support wheel 710 preferably includes the displacement means to allow the friction drive wheel and/or the support wheel to come into contact with the upper surface of the plane part of the friction plate 500 and/or 500 ′, ensuring reliable carrying of the friction plate 500 and/or 500 ′ with the rotation of the friction drive wheel 610 and/or the support wheel 710 .
  • the friction plates 500 and 500 ′ may have inclined surfaces 512 to dampen an impact between opposite ends of the friction plates 500 and 500 ′ and the friction drive wheel 610 and the support wheel 710 when the friction plates are carried towards the wheels.
  • the friction drive wheel 610 and the support wheel 710 may be formed from rubber or urethane synthetic resin to prevent noise occurring due to friction with the friction plates.
  • the friction drive unit 600 is hung from and fixed to a support or the ceiling by means of a plurality of first jigs 121 , which are disposed along the monorail 100 so as to be spaced at a certain distance apart from the monorail.
  • the lower end of the first jig 121 is disposed on the first friction plate 500 .
  • the support wheel 710 is hung from and fixed to a support or the ceiling by means of a plurality of second jigs 122 , which are disposed along the monorail 100 so as to be spaced at a certain distance apart from the monorail.
  • the lower end of the second jig 122 should be disposed on the second friction plate 500 ′.
  • a plurality of friction drive wheels 610 should be arranged at regular intervals shorter than the whole length of the plane part of the first friction plate 500 Similarly, a plurality of support wheels 710 may preferably be arranged at regular intervals shorter than the whole length of the plane part of the second friction plate 500 ′. If the length of the plane part of the friction plate 500 is shorter than an interval between the friction drive wheels 610 , neither of the two adjacent friction drive wheels 610 comes into contact with the friction plate 500 , so that the friction plate 500 cannot be driven in the running direction.
  • the present invention is designed to reduce the dependence upon the hanger-driving manner based on EMS. For example, if the motor 212 of the driving trolley 210 is broken, an operator releases an operation of the toggle clamp 213 of the driving trolley 210 so as to ensure free rotation of the drive wheel 211 without the operation of the motor. Then, the operator can move the hanger 400 in an arrow direction by enabling the friction plate 500 to be driven in the running direction with the operation of the friction drive wheel 610 shaft-coupled to the drive motor 620 .
  • the present invention can move the hanger 400 operatively suspended from the monorail 100 with the operation of the driving trolley 210 or the friction drive unit 600 .
  • the overhead conveyor according to the present invention can adopt EMS in which a controller is provided on the hanger so as to automatically operate the hanger or a power supply line and a signal line are provided on the monorail.
  • the EMS and FDS can be operated on the ground.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Chain Conveyers (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
US15/134,964 2016-04-04 2016-04-21 Overhead conveyor Abandoned US20170282937A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020160041173A KR101757783B1 (ko) 2016-04-04 2016-04-04 오버헤드 컨베이어
KR10-2016-0041173 2016-04-04

Publications (1)

Publication Number Publication Date
US20170282937A1 true US20170282937A1 (en) 2017-10-05

Family

ID=59358556

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/134,964 Abandoned US20170282937A1 (en) 2016-04-04 2016-04-21 Overhead conveyor

Country Status (2)

Country Link
US (1) US20170282937A1 (ko)
KR (1) KR101757783B1 (ko)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180099681A1 (en) * 2015-03-21 2018-04-12 Eisenmann Se Transport carriage and system for transporting objects
CN113232752A (zh) * 2021-05-10 2021-08-10 天奇自动化工程股份有限公司 可变间距的fds台车

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102039619B1 (ko) * 2017-11-17 2019-11-01 삼성중공업(주) 배관 이송 장치
CN108357905B (zh) * 2018-04-28 2024-02-09 罗博特科智能科技股份有限公司 一种用于电池片物料箱的搬运设备

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4237525B2 (ja) 2003-04-02 2009-03-11 株式会社椿本チエイン フリクション駆動式トロリーコンベヤ
JP2004315211A (ja) 2003-04-18 2004-11-11 Tsubakimoto Chain Co ハイブリッド駆動式コンベヤ
JP2005008314A (ja) 2003-06-17 2005-01-13 Tsubakimoto Chain Co フリクション駆動式トロリーコンベヤ
KR101534043B1 (ko) 2014-01-24 2015-07-06 (주)일양엔지니어링 마찰구동식 트롤리 컨베이어기구

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180099681A1 (en) * 2015-03-21 2018-04-12 Eisenmann Se Transport carriage and system for transporting objects
US11279382B2 (en) * 2015-03-21 2022-03-22 Pentanova Cs Gmbh Transport carriage and system for transporting objects
CN113232752A (zh) * 2021-05-10 2021-08-10 天奇自动化工程股份有限公司 可变间距的fds台车

Also Published As

Publication number Publication date
KR101757783B1 (ko) 2017-07-14

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SEWOONG MACHINERY CO., LTD., KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:YOU, EOK SIK;SON, YOUNG KYU;REEL/FRAME:038494/0808

Effective date: 20160420

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION