KR920019663A - 포오크리프트의 제어장치 - Google Patents
포오크리프트의 제어장치 Download PDFInfo
- Publication number
- KR920019663A KR920019663A KR1019920005445A KR920005445A KR920019663A KR 920019663 A KR920019663 A KR 920019663A KR 1019920005445 A KR1019920005445 A KR 1019920005445A KR 920005445 A KR920005445 A KR 920005445A KR 920019663 A KR920019663 A KR 920019663A
- Authority
- KR
- South Korea
- Prior art keywords
- lift cylinder
- control valve
- lift
- fork
- mast
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/24—Electrical devices or systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
Description
Claims (3)
- 작업기계레버에서 보낸 레버작동신호에 따라 유량제어신호를 전자비레제어밸브에 출력하는 제어기와, 제어기의 유량제어신호에 대응하는 압유를 제1리프트실린더 및 제2리프트실린더로/에서 공급/방출하는 전자비례제어밸브와, 그리고 전자비례제어밸브에서 공급된 압유에 의해 내부마스트에 관해서 포오크를 상승/하강시키는 제1리프트실린더 및 외부마스트에 관해서 상기 내부마스트를 상승/하강시키는 제2리프트실린더를 가진 전자유리프트마스트를 포함하는 포오크리프트에 있어서, 포오크리프트의 제어장치는 최대자유리프트, 상기 내부마스트 상의 상기 포오크의 상한위치를 검출하는 리미트 스위치를 구비하고 있으며, 상기 제어기는, 상기 리미스 스위치가 상기 최대자유리프트를 검출하면 상기 리프트실린더에의 유압의 공급을 차단하기 위하여 유량제어신호를 상기 전자비례제어밸브에 출력하는 수단을 포함하는 포오크리프트의 제어장치.
- 제1항에 있어서, 상기 저천장 선택스위치가 온(ON) 위치에 있을 때, 상기 전자비례제어밸브로부터 상기 리프트실린더에의 압유의 공급이 상기 리미트 스위치가 통전되었을 때 차단되고, 그리고 상기 저천장 스위치가 오프(OFF)위치에 있을 때, 상기 포오크는, 상기 리미트스위치가 온(ON)이든 오프(OFF)든 어느한쪽에 있을 때 상기 작업기계레버의 상승작동에 의해 자유리프트높이를 높이 넘어 최대양정높이까지 상승하도록 저천장스위치가 설치되는, 포오크리프트의 제어장치.
- 작업기계레버에서 보낸 레버작동신호에 따라 유량제어신호를 전자비레제어밸브에 출력하는 제어기와, 제어기의 유량제어신호에 대응하는 압유를 제1리프트실린더 및 제2리프트실린더로/에서 공급/방출하는 전자비례제어밸브와, 그리고 전자비례제어밸브에서 공급된 압유에 의해 내부마스트에 관해서 포오크를 상승/하강시키는 제1리프트실린더 및 외부마스트에 관해서 상기 내부마스트를 상승/하강시키는 제2리프트실린더를 가진 전자유리프트마스트를 포함하는 포오크리프트에 있어서, 포오크리프트의 제어장치는 최대자유리프트, 상기 내부마스트 상의 상기 포오크의 상한위치를 검출하는 리미트 스위치를 구비하고 있으며, 그리고 제어기는 리미트스위치가 최대자유리프트 보다 낮은 위치를 검출하면, 일정시간동안 리프트실린더에의 압유의 공급을 감소시키고 나서, 압유의 공급을 차단하기 위해서 유량제어신호를 전자비례제어밸브 출력하는 수단을 포함한다.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3068528A JP2716876B2 (ja) | 1991-04-01 | 1991-04-01 | フォークリフトの制御装置 |
| JP91-068528 | 1991-04-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR920019663A true KR920019663A (ko) | 1992-11-19 |
Family
ID=13376322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019920005445A Ceased KR920019663A (ko) | 1991-04-01 | 1992-04-01 | 포오크리프트의 제어장치 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5238086A (ko) |
| EP (1) | EP0509659B1 (ko) |
| JP (1) | JP2716876B2 (ko) |
| KR (1) | KR920019663A (ko) |
| AU (1) | AU647897B2 (ko) |
| CA (1) | CA2063864C (ko) |
| DE (1) | DE69203514T2 (ko) |
| ES (1) | ES2076007T3 (ko) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5462136A (en) * | 1994-03-03 | 1995-10-31 | The Raymond Corporation | Prevention of slack lift chains on a man-up lift truck |
| SE505606C2 (sv) * | 1994-11-28 | 1997-09-22 | Bt Ind Ab | Anordning, vid en gaffeltruck, för dämpning av stötar och slag i lyftrörelsen |
| US5994650A (en) * | 1996-03-28 | 1999-11-30 | Bt Industries Ab | Safety system for lift trucks |
| EP0866027B1 (en) * | 1997-03-21 | 2004-05-26 | Kabushiki Kaisha Toyota Jidoshokki | Hydraulic control apparatus for industrial vehicles |
| JPH10338491A (ja) * | 1997-06-10 | 1998-12-22 | Toyota Autom Loom Works Ltd | フォークリフトの荷役用油圧装置 |
| JP3309787B2 (ja) * | 1997-11-28 | 2002-07-29 | 株式会社豊田自動織機 | 位置検出装置及びフォークリフト用揚高位置検出装置 |
| AU705832B1 (en) * | 1997-12-22 | 1999-06-03 | Denis Kershaw | Warning system for vehicles operating in confined spaces |
| USD427409S (en) * | 1998-02-27 | 2000-06-27 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Forklift truck |
| JP2000109299A (ja) | 1998-10-02 | 2000-04-18 | Nippon Yusoki Co Ltd | カウンタバランス型フォ−クリフトの荷役装置 |
| USD444607S1 (en) | 2000-03-30 | 2001-07-03 | Tcm Corporation | Fork lift truck |
| AU144809S (en) | 2000-06-06 | 2001-08-13 | Fiat Om Carrelli Elevatori S P A | A fork lift truck |
| DE10043185A1 (de) * | 2000-09-01 | 2002-03-14 | Still Wagner Gmbh & Co Kg | Flurförderzeug mit einem Hubmast |
| USD469236S1 (en) | 2001-07-23 | 2003-01-21 | Tcm Corporation | Fork lift truck |
| US7344000B2 (en) * | 2004-09-23 | 2008-03-18 | Crown Equipment Corporation | Electronically controlled valve for a materials handling vehicle |
| JP5353371B2 (ja) * | 2008-05-26 | 2013-11-27 | 株式会社豊田自動織機 | 多段マスト式フォークリフトの荷重計測装置 |
| US8777545B2 (en) * | 2009-10-20 | 2014-07-15 | Bright Coop, Inc. | Free lift mast for truck mounted forklift |
| US9045321B2 (en) * | 2010-01-15 | 2015-06-02 | Recon Engineering, Inc. | Load transport system and method |
| US8869944B2 (en) * | 2010-03-01 | 2014-10-28 | The Raymond Corporation | Energy storage on an elevated platform and transfer method |
| WO2012112431A1 (en) | 2011-02-16 | 2012-08-23 | Crown Equipment Corporation | Materials handling vehicle estimating a speed of a movable assembly from a lift motor speed |
| DE102012103364A1 (de) * | 2011-08-23 | 2013-02-28 | Still Gmbh | Flurförderzeug mit Hubhöhenmessung |
| US9090432B2 (en) | 2012-08-04 | 2015-07-28 | Serverlift Corporation | Lift with lifting mast collision control apparatus |
| US10018721B2 (en) * | 2015-02-19 | 2018-07-10 | Manitowoc Crane Companies, Llc | Ruggedized packaging for linear distance measurement sensors |
| US10430073B2 (en) | 2015-07-17 | 2019-10-01 | Crown Equipment Corporation | Processing device having a graphical user interface for industrial vehicle |
| MX2019005883A (es) | 2016-11-22 | 2019-08-12 | Crown Equip Corp | Dispositivo de interfaz de usuario para vehiculo industrial. |
| US11565923B2 (en) * | 2019-02-19 | 2023-01-31 | Crown Equipment Corporation | Chain slack detection system |
| CN117141332A (zh) * | 2023-08-29 | 2023-12-01 | 金川集团机械制造有限公司 | 一种用于防止矿运卡车车厢倾翻的电子限位结构 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2554930A (en) * | 1946-08-15 | 1951-05-29 | Yale & Towne Mfg Co | Lift truck |
| DE1174262B (de) * | 1958-04-28 | 1964-07-16 | Clark Equipment Co | Hublader mit einem ausfahrbaren und neigbaren Hubmast |
| US3107750A (en) * | 1962-04-23 | 1963-10-22 | Lipton Products Ltd | Load handling vehicles |
| DE1456892C3 (de) * | 1966-05-06 | 1975-05-28 | Steinbock Gmbh, 8052 Moosburg | Teleskopmast-Hubantrieb für einen Hublader |
| GB1221645A (en) * | 1967-06-26 | 1971-02-03 | Lansing Bagnall Ltd | Improvements in or relating to industrial trucks having a hydraulic circuit for performing a load handling operation |
| DK140887B (da) * | 1975-04-30 | 1979-12-03 | Islef & Hagen As | Styresystem til selektiv indstilling af et forskydeligt organ. |
| GB2093217B (en) * | 1981-02-17 | 1984-09-26 | Komatsu Forklift | Masted lift truck control systems |
| GB2099184B (en) * | 1981-03-31 | 1985-06-05 | Toyoda Automatic Loom Works | Forklift control system |
| JPS60107405A (ja) * | 1983-11-15 | 1985-06-12 | Nissan Motor Co Ltd | サスペンシヨン装置の防振機構 |
-
1991
- 1991-04-01 JP JP3068528A patent/JP2716876B2/ja not_active Expired - Fee Related
-
1992
- 1992-03-17 US US07/853,070 patent/US5238086A/en not_active Expired - Fee Related
- 1992-03-24 CA CA002063864A patent/CA2063864C/en not_active Expired - Fee Related
- 1992-03-25 AU AU13169/92A patent/AU647897B2/en not_active Ceased
- 1992-03-26 ES ES92302630T patent/ES2076007T3/es not_active Expired - Lifetime
- 1992-03-26 DE DE69203514T patent/DE69203514T2/de not_active Expired - Fee Related
- 1992-03-26 EP EP92302630A patent/EP0509659B1/en not_active Expired - Lifetime
- 1992-04-01 KR KR1019920005445A patent/KR920019663A/ko not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04303395A (ja) | 1992-10-27 |
| EP0509659B1 (en) | 1995-07-19 |
| AU647897B2 (en) | 1994-03-31 |
| DE69203514D1 (de) | 1995-08-24 |
| JP2716876B2 (ja) | 1998-02-18 |
| DE69203514T2 (de) | 1995-12-21 |
| AU1316992A (en) | 1992-10-08 |
| CA2063864C (en) | 1995-05-02 |
| US5238086A (en) | 1993-08-24 |
| ES2076007T3 (es) | 1995-10-16 |
| EP0509659A1 (en) | 1992-10-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 19920401 |
|
| PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 19920401 Comment text: Request for Examination of Application |
|
| PG1501 | Laying open of application | ||
| E902 | Notification of reason for refusal | ||
| PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 19960122 Patent event code: PE09021S01D |
|
| E601 | Decision to refuse application | ||
| PE0601 | Decision on rejection of patent |
Patent event date: 19960531 Comment text: Decision to Refuse Application Patent event code: PE06012S01D Patent event date: 19960122 Comment text: Notification of reason for refusal Patent event code: PE06011S01I |