JPH02128804U - - Google Patents

Info

Publication number
JPH02128804U
JPH02128804U JP1988146815U JP14681588U JPH02128804U JP H02128804 U JPH02128804 U JP H02128804U JP 1988146815 U JP1988146815 U JP 1988146815U JP 14681588 U JP14681588 U JP 14681588U JP H02128804 U JPH02128804 U JP H02128804U
Authority
JP
Japan
Prior art keywords
scale
cylinder
cylinders
pulse waves
parallel
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.)
Granted
Application number
JP1988146815U
Other languages
English (en)
Other versions
JPH0741923Y2 (ja
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 filed Critical
Priority to JP1988146815U priority Critical patent/JPH0741923Y2/ja
Priority to KR1019890003983A priority patent/KR920007654B1/ko
Priority to US07/349,253 priority patent/US5024141A/en
Publication of JPH02128804U publication Critical patent/JPH02128804U/ja
Application granted granted Critical
Publication of JPH0741923Y2 publication Critical patent/JPH0741923Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/08—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated
    • 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
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/065—Scissor linkages, i.e. X-configuration
    • B66F7/0666—Multiple scissor linkages vertically arranged
    • B66F7/0675—Auxiliary scissors, e.g. above main scissors
    • 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
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/22—Synchronisation of the movement of two or more servomotors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Position Or Direction (AREA)

Description

【図面の簡単な説明】
図面は本発明に係る並列接続シリンダの同調方
法を実施した車輌整備用リフト装置を示したもの
で、第１図はリフト装置全体の斜視図、第２図は
油圧回路図、第３図はシリンダ装置に取り付けら
れた判別機構の説明図、第４図は制御機構の電気
回路説明図、第５図ａ，ｂ，ｃは左右の判別機構
から発せられるパルス波形の組み合わせパターン
を示す説明図である。 １，１′……ベース、２，２′……テーブル、
３，３′……Ｘ型リンク、４，４′……ジヤツキ
装置、５，５′，６，６′……シリンダ、５ａ，
５′ａ，６ａ，６′ａ……シヤツトオフバルブ、
５ｂ……ピストンロツド、５ｃ……シリンダ本体
、７……オイルタンク、８……ポンプ、９……分
流集流弁、１０，１０′……シヤツトオフバルブ
、１１，１１′……バイパス路、１２……下降バ
ルブ、１３……リリーフバルブ、１４……ヒユー
ズバルブ、１５……ラツク部材、１５ａ……係止
爪、１６……エアーリミツトスイツチ、１６ａ…
…鋸歯状目盛、１７，１７′……判別リレー、１
８……検出リレー、１９……時限リレー、２０，
２０′……確認リレー、２１，２１′……制御リ
レー。

Claims (1)

  1. 【実用新案登録請求の範囲】 １ 並列接続された複数のシリンダ装置夫々に、
    進退可動部と固定部のいずれか一方へ進退方向に
    沿つて山と谷とを所定ピツチで交互に設けた鋸刃
    状目盛を設けると共に、他方の特定箇所へ、その
    特定箇所に対応する前記鋸刃状目盛の部位が山か
    谷かを判別してその判別信号をパルス出力させる
    判別機構を設け、各判別機構からのパルス波を、
    金シリンダ同調作動時におけるパルス波の組み合
    わせと比較して所定範囲を越えたずれを検知した
    場合に、各シリンダへ供給する流体の量を制御し
    てずれを修正することを特徴とする並列接続シリ
    ンダの同調方法。 ２ 並列接続された一対のシリンダ装置夫々の進
    退可動部に、進退方向に沿つて山と谷とを所定ピ
    ツチで交互に設けた鋸刃状目盛を設けると共に、
    固定部の特定箇所へ、リミツトスイツチをそのア
    クチユエータが前記鋸刃状目盛の波形をトレース
    するように取り付け、アクチユエータが谷部に位
    置するとパルス波を出力する目盛判別機構を、シ
    リンダ同調作動時にその検知信号が互いに1/2ピ
    ツチずれるように設け、前記各目盛判別機構から
    のパルス波を、両シリンダ同調作動時におけるパ
    ルス波の組み合わせと比較して所定範囲を越えた
    ずれを検知した場合、作動が早いシリンダへ流体
    を供給する回路を絞り作動させてそのシリンダに
    対する流体の供給量を減らすことによりずれを修
    正することを特徴とする並列接続シリンダの同調
    方法。
JP1988146815U 1988-11-10 1988-11-10 並列接続シリンダの同調装置 Expired - Lifetime JPH0741923Y2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP1988146815U JPH0741923Y2 (ja) 1988-11-10 1988-11-10 並列接続シリンダの同調装置
KR1019890003983A KR920007654B1 (ko) 1988-11-10 1989-03-29 병렬접속 실린더의 동조방법
US07/349,253 US5024141A (en) 1988-11-10 1989-05-09 Method for the synchronous operation of juxtaposed cylinder devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988146815U JPH0741923Y2 (ja) 1988-11-10 1988-11-10 並列接続シリンダの同調装置

Publications (2)

Publication Number Publication Date
JPH02128804U true JPH02128804U (ja) 1990-10-24
JPH0741923Y2 JPH0741923Y2 (ja) 1995-09-27

Family

ID=15416156

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988146815U Expired - Lifetime JPH0741923Y2 (ja) 1988-11-10 1988-11-10 並列接続シリンダの同調装置

Country Status (3)

Country Link
US (1) US5024141A (ja)
JP (1) JPH0741923Y2 (ja)
KR (1) KR920007654B1 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05173646A (ja) * 1991-12-25 1993-07-13 Kayaba Ind Co Ltd 電気油圧サーボ機構
JPH06282331A (ja) * 1993-03-26 1994-10-07 Fuji Car Mfg Co Ltd 複数の直線移動体の同調制御方法
JP2002326787A (ja) * 2001-05-01 2002-11-12 Shin Meiwa Ind Co Ltd 機械式駐車設備用昇降装置
JP2018162139A (ja) * 2017-03-24 2018-10-18 シンフォニアテクノロジー株式会社 荷役装置

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6189432B1 (en) * 1999-03-12 2001-02-20 Hunter Engineering Company Automotive lift hydraulic fluid control circuit
US6763916B2 (en) 2002-04-12 2004-07-20 Delaware Capital Formation, Inc. Method and apparatus for synchronizing a vehicle lift
US7150073B2 (en) * 2004-04-27 2006-12-19 Delaware Capital Formation, Inc. Hinge pin
DE202006014183U1 (de) * 2006-09-12 2006-11-09 Otto Nussbaum Gmbh & Co Kg Hebebühne zum Anheben von Lasten
CA2699789A1 (en) * 2007-09-21 2009-03-26 Snap-On Tools Of Canada, Ltd. System and apparatus to synchronize a plurality of hydraulically actuated components
KR100949241B1 (ko) * 2007-12-13 2010-03-24 두산메카텍 주식회사 유압 리프트 동조 장치
DE102008021149A1 (de) * 2008-04-28 2009-10-29 Maha Maschinenbau Haldenwang Gmbh & Co. Kg Hebevorrichtung
US10087958B2 (en) 2012-04-19 2018-10-02 Cascade Corporation Fluid power control system for mobile load handling equipment
US10227222B2 (en) 2015-07-31 2019-03-12 Vehicle Service Group, Llc Precast concrete pit
US10246313B2 (en) 2015-07-31 2019-04-02 Vehicle Service Group, Llc Precast concrete pit
CN110714956B (zh) * 2019-09-10 2021-07-16 安徽博微长安电子有限公司 大阵面天线叠加式举升控制系统及其方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59225821A (ja) * 1983-06-06 1984-12-18 Fuji Sharyo Kk 油圧シリンダ駆動機構における制御装置
JPS60198611A (ja) * 1984-03-21 1985-10-08 Toshiba Corp 表示装置
JPS60263713A (ja) * 1984-06-11 1985-12-27 Takashi Kimura 減速装置付中間停止空気圧シリンダ

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB582832A (en) * 1944-09-02 1946-11-28 Cyril Daniel Watson Improvements in and relating to hydraulic power presses
US3053053A (en) * 1960-01-25 1962-09-11 Ollie G Douglas Fluid power synchronizing device
US3765173A (en) * 1971-09-28 1973-10-16 K G Industries Hydraulic roll drive means for briquetters and compactors
US3968730A (en) * 1974-05-13 1976-07-13 Bernard Lucien Gabriel Lionet Method of and apparatus for synchronizing a plurality of fluid-operated rams
DE2656304C3 (de) * 1976-12-11 1980-02-14 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Elektronische Schaltung
SU909370A1 (ru) * 1980-05-12 1982-02-28 Производственное Объединение "Ждановтяжмаш" Гидравлический привод дл синхронизации двух гидроцилиндров
DE3535704A1 (de) * 1985-10-05 1987-04-09 Festo Kg Kolben-zylinder-anordnung
US4756229A (en) * 1986-09-25 1988-07-12 United Technologies Corporation Digital motor feedback for a position actuator
US4777798A (en) * 1987-09-21 1988-10-18 Owatonna Tool Company Universal control system for hydraulic cylinders

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59225821A (ja) * 1983-06-06 1984-12-18 Fuji Sharyo Kk 油圧シリンダ駆動機構における制御装置
JPS60198611A (ja) * 1984-03-21 1985-10-08 Toshiba Corp 表示装置
JPS60263713A (ja) * 1984-06-11 1985-12-27 Takashi Kimura 減速装置付中間停止空気圧シリンダ

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05173646A (ja) * 1991-12-25 1993-07-13 Kayaba Ind Co Ltd 電気油圧サーボ機構
JPH06282331A (ja) * 1993-03-26 1994-10-07 Fuji Car Mfg Co Ltd 複数の直線移動体の同調制御方法
JP2002326787A (ja) * 2001-05-01 2002-11-12 Shin Meiwa Ind Co Ltd 機械式駐車設備用昇降装置
JP2018162139A (ja) * 2017-03-24 2018-10-18 シンフォニアテクノロジー株式会社 荷役装置

Also Published As

Publication number Publication date
US5024141A (en) 1991-06-18
KR900007715A (ko) 1990-06-01
KR920007654B1 (ko) 1992-09-14
JPH0741923Y2 (ja) 1995-09-27

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