EP0572362A1 - Hydraulische Anlage zum Bedienen einer Schranke - Google Patents

Hydraulische Anlage zum Bedienen einer Schranke Download PDF

Info

Publication number: EP0572362A1
Authority: EP; European Patent Office
Prior art keywords: barrier; cylinder; equipment; actuator; hydraulic
Prior art date: 1992-05-28
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

EP93830223A

Other languages

English (en)

French (fr)

Other versions

EP0572362B1 (de

Inventor

Claudio Siliani

Maurizio Biagiotti

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.)

Angiolo Siliani SpA

Original Assignee

Angiolo Siliani SpA

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.)

1992-05-28

Filing date

1993-05-25

Publication date

1993-12-01

1993-05-25 Application filed by Angiolo Siliani SpA filed Critical Angiolo Siliani SpA

1993-12-01 Publication of EP0572362A1 publication Critical patent/EP0572362A1/de

1996-08-28 Application granted granted Critical

1996-08-28 Publication of EP0572362B1 publication Critical patent/EP0572362B1/de

2013-05-25 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Images

Classifications

- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
- E01F13/04—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage
- E01F13/06—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage by swinging into open position about a vertical or horizontal axis parallel to the road direction, i.e. swinging gates
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L29/00—Safety means for rail/road crossing traffic
- B61L29/08—Operation of gates; Combined operation of gates and signals

Definitions

the invention relates to improved apparatus for the control of the barriers or bars of level crossings, suitable for providing improved performance, greater safety and improved functioning by comparison with apparatuses which exist at present and are for the most part electro-mechanical.
the apparatus substantially comprises: a hydraulic power unit capable of actuating a hydraulic cylinder-and-piston actuator for the raising and lowering of the barrier; a hydraulic circuit with distributors, pressure regulators, valves and the like; mechanical locking means at least for the lowered position of the barrier; and auxiliary units for overcoming initial inertia on opening.
the hydraulic circuit may comprise, as an actuator, a double-acting cylinder-and-piston system, a valve connected in parallel with the cylinder-and-piston system between the circuit branches which feed it; a non-return valve opened by the working pressure of the pump motor group; a directional control valve of the open-and-closed type in the two branches of the supply circuit; and a linkage between the mobile member of the actuator and the angularly mobile equipment of the barrier to be moved.
the linkage may comprise a sector gear on the mobile equipment of the barrier and a rack on the sliding cylinder forming the mobile member of the actuator.
the said gear and the said rack may furthermore have flat surfaces which interact with each other in sliding contact to lock the barrier in the lowered position at the end of the corresponding stroke of the actuator.
counter-weights may be provided to balance the equipment of the barrier, which counter-weights are recessed in a housing for linear sliding and are connected to the said equipment of the barrier by a chain or similar flexible drive, settling gradually on a cam profile.
a particularly safe arrangement is thus achieved, in that the counter-weights do not project externally and hence cannot constitute a potential risk to persons as occurs in the apparatuses which are currently known.
1 generally indicates a supporting frame which can be enclosed in a protective hood 2 from which limited parts project and in which access ports are provided for inspections and maintenance.
a protective hood 2 On the frame 1 are provided supports 1a for a horizontal shaft 3 which rotates with the barrier complex generally designated A.
the gear 7 is a sector of a circle on which a chain 10, anchored at 12 on the upper end of the said gear 7, can settle;
the gear 9, by contrast, is shaped in the form of a variable-radius cam, and a chain 14 anchored at 16 on the end of the cam profile of the said gear 9 can settle thereon.
the chain 10 is deflected by a deflection pulley 18 towards a hollow cylinder 20 into which it penetrates, reaching and anchoring itself on a lower plug 22 which is able to slide in-the said cylinder 20; a large helical spring 24 acts upon the plug 22, which surrounds the chain 10 and acts against the upper closed end 20A of the cylinder 20.
the chain 14 is in turn deflected by a pulley 28 and by a second pulley 30 in order to reach and anchor itself on the end 32A of a rod 32 which passes through a plurality of counter-weights 34 - which are, for example, discoidal or equivalent - which are stacked and supported by the rod and can be adjusted in number, and hence in total weight, in order to balance the mobile equipment around and with the shaft 3, and which comprises the barrier A and the gears 7 and 9.
the chain 14, instead of being continuous in order to reach the counter-weights 34 may be interrupted by a speed change means replacing the deflection pulley 28 or the deflection pulley 30, in order to reduce the bulk and load of the weights 34.
This actuator designates an assembly with a hydraulic pump and motor for a power unit which serves to supply a double-acting hydraulic actuator.
This actuator comprises a cylinder-and-piston system with a rod 42 to which is solidly fixed a piston 44 which remains stationary while the cylinder 46 is slidable; in the drawing, the said actuator 42, 44, 46 is arranged in the vertical attitude.
Solidly fixed to the cylinder 46 which represents the mobile member of the cylinder-and-piston system, is a rack 50 which is followed by a flattened zone 52; see in particular Fig. 5.
On the shaft 3 and solidly fixed thereto is provided a discoidal body 54 having a sector gear 54A followed by a flattened zone 56.
the mobile equipment 46 of the cylinder of the hydraulic actuator also forms a pair of racks 60, opposite to the rack 50 and capable of engaging with corresponding sector gears 62, which are articulated at 64 and on which there acts - via a crosspiece 66 - a large compression spring 78, expediently sheathed, to oscillate about the axis of the crosspiece and via a fixed articulation 70.
the sector gear 62 like the sector gear 54A, also has a flattened part 72, with which there can interact a flattened part 74 which is formed in the mobile part 46 of the cylinder of the actuator 42, 44, 46 in alignment with the rack 60, similarly to the flattened part 52 which is aligned with the rack 50 of the mobile cylinder 46.
the displacement of the mobile cylinder 46 brought about by the cylinder-and-piston system 42, 44, 46 causes rotation of the mobile equipment of the barrier A comprising the shaft 3, the gear 54A and the gears 7 and 9, until mutual engagement takes place between the rack 50 and the gear 54A; beyond a certain limit of the lifting of the cylinder 46, the flattened part 56 of the body 54 enters into sliding contact with the flattened part 52 of the mobile cylinder 46, fixing the position reached by the said mobile equipment and hence by the barrier A in the horizontal position.
the sector gear 62 engaging with the rack 60, causes a rotation of the gear 62 when the toothings of the gear 62 and of the rack 60 are engaged, while it frees the gear 62 when the flattened part 72 thereof enters into sliding contact with the flattened part 74 of the cylinder 46.
the cylinder 46 In the position shown in Fig. 5, the cylinder 46 is in the position of maximum elevation and the bar A is lowered, that is to say horizontal; when it is caused to move downwards, that is to say in the direction of the arrow fB, the cylinder 46 initially causes merely the rotation, in a clockwise direction as shown in Figs.
the spring 24 tends to re-expand, having cooperated in the initial lifting displacement of the barrier A, when the force resisting the lifting is maximum for the horizontal position of the said barrier A; the effect of the spring 24 is attenuated as the lifting progresses; at this time, however, the force resisting the lifting of the barrier is reduced by the gradually increased inclination of the barrier relative to the horizontal.
the system of counter-weights 34 also cooperates in overcoming the initial load, these acting with a constant load on the chain 14 and hence on the gear 9 with the cam profile, producing, as regards the mobile equipment, an initial assistance which is relatively very powerful as a result of the high leverage created between the profile of the gear 9 and the axis of the shaft 3; this effect is gradually attenuated as the barrier A rises and hence as the equipment thereof rotates about the axis of the shafts 3, as a result of the gradual reduction of the radius of action of the chain 14 at its tangent point relative to the profile of the gear 9.
the engagement between the rack 60 and the sector gear 72 produces a rotation of the gear 72 and hence a compressive loading of the spring 68, which constitutes an energy accumulation- system which is stabilised, as the lowering of the cylinder 46 continues, by the effect of the locking of the gear 62 brought about by the flattened surfaces 72 and 74 which are coupled and which slide relative to each other, keeping the loading of the spring 78 stabilised; only at the end of the lowering of the barrier A to the horizontal, and hence only towards the end of the lifting of the cylinder 46 by the actuator 42, 44, 46, does the overloaded spring 68 intervene, completing the lifting of the cylinder 46 by means of the toothings 62 and 60 and coupling the surfaces 52 and 56 in order to bring about the locking of the lowered barrier A; the spring 68 has the purpose of moving the cylinder 46 to the end of its stroke once the barrier A is lowered into the horizontal position to achieve the blocking of any exchange.
Fig. 4 The hydraulic circuit for controlling the actuator 42, 44, 46 responsible for the movement of the barrier A, is illustrated in Fig. 4, in which the motor/pump unit 40 and the actuator 42, 44, 46 are illustrated diagrammatically.
82 designates a non-return valve and 84 and 86 designate pressure regulating valves, the valve 86 being capable of being excluded, if desired, by means a tap 88 which, when opened, bypasses the valve 86 causing the valve 84 to work alone, whereas closure of the tap 88 causes the additional activation of the regulator valve 86, which then operates in series with the valve 84.
90 designates a regulator of flow, and hence of the speed of the displacements of the actuator and of the equipment of the barrier.
valve 92 designates a directional control valve for switching the displacements, in one direction or the other, of the mobile equipment, that is to say of the cylinder 46 of the actuator 42, 44, 46: the valve 92 switches the delivery from the pump through the regulator 90 and the outflow 94, towards the reservoir 96.
the valve 98 which is closed during normal operation, opens in the absence of current, enabling the counter-weights to move the bar into the position required by the project, without passive resistance caused by hydraulic loading.
the valve 100 retains the oil in the line and hence locks the barrier: it opens only in the presence of a hydraulic command of opposite sign.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Architecture (AREA)
Civil Engineering (AREA)
Structural Engineering (AREA)
Fluid-Pressure Circuits (AREA)
Lifting Devices For Agricultural Implements (AREA)
Actuator (AREA)
Load-Engaging Elements For Cranes (AREA)
Transmission Devices (AREA)
Forklifts And Lifting Vehicles (AREA)
Soil Working Implements (AREA)
Coating With Molten Metal (AREA)

EP93830223A 1992-05-28 1993-05-25 Hydraulische Anlage zum Bedienen einer Schranke Expired - Lifetime EP0572362B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
ITFI920116		1992-05-28
ITFI920116A IT1258735B (it)	1992-05-28	1992-05-28	Apparecchiatura idraulica di comando del sollevamento e dell'abbassamento dell'asta di un passaggio a livello

Publications (2)

Publication Number	Publication Date
EP0572362A1 true EP0572362A1 (de)	1993-12-01
EP0572362B1 EP0572362B1 (de)	1996-08-28

Family

ID=11350110

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP93830223A Expired - Lifetime EP0572362B1 (de)	1992-05-28	1993-05-25	Hydraulische Anlage zum Bedienen einer Schranke

Country Status (7)

Country	Link
EP (1)	EP0572362B1 (de)
AT (1)	ATE141978T1 (de)
DE (1)	DE69304256T2 (de)
DK (1)	DK0572362T3 (de)
ES (1)	ES2090942T3 (de)
GR (1)	GR3020904T3 (de)
IT (1)	IT1258735B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN102518055A (zh) *	2011-12-06	2012-06-27	中国核电工程有限公司	高强度抗撞装置
WO2014172311A3 (en) *	2013-04-18	2015-03-26	Siemens Industry, Inc.	User configurable horizontal brake feature for railroad crossing gates
CN107705698A (zh) *	2017-08-08	2018-02-16	广西南宁东能建筑工程技术有限公司	一种新型交通指示牌装置
CN107784925A (zh) *	2017-08-08	2018-03-09	广西南宁东能建筑工程技术有限公司	一种改进型交通指示牌装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1412878A (en) *	1917-09-22	1922-04-18	Nat Pneumatic Co	Fluid-pressure-actuated motor
FR2289984A1 (fr) *	1974-10-31	1976-05-28	Doernemann Carola	Installation de guidage de la circulation
US4133140A (en) *	1975-11-14	1979-01-09	Devices Development Corporation	Safety mechanism for highway exit ramp
EP0422710A1 (de) *	1989-10-13	1991-04-17	FAAC S.p.A.	Schranke mit symmetrischem Antrieb
FR2669075A1 (fr) *	1990-11-09	1992-05-15	Ero Automatisme	Dispositif d'actionnement pour barriere automatique.
EP0487755A1 (de) *	1990-11-26	1992-06-03	Scheidt & Bachmann Gmbh	Elektrohydraulischer Schrankenantrieb

1992
- 1992-05-28 IT ITFI920116A patent/IT1258735B/it active IP Right Grant
1993
- 1993-05-25 ES ES93830223T patent/ES2090942T3/es not_active Expired - Lifetime
- 1993-05-25 EP EP93830223A patent/EP0572362B1/de not_active Expired - Lifetime
- 1993-05-25 DE DE69304256T patent/DE69304256T2/de not_active Expired - Lifetime
- 1993-05-25 AT AT93830223T patent/ATE141978T1/de active
- 1993-05-25 DK DK93830223.9T patent/DK0572362T3/da active
1996
- 1996-08-29 GR GR960402130T patent/GR3020904T3/el unknown

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1412878A (en) *	1917-09-22	1922-04-18	Nat Pneumatic Co	Fluid-pressure-actuated motor
FR2289984A1 (fr) *	1974-10-31	1976-05-28	Doernemann Carola	Installation de guidage de la circulation
US4133140A (en) *	1975-11-14	1979-01-09	Devices Development Corporation	Safety mechanism for highway exit ramp
EP0422710A1 (de) *	1989-10-13	1991-04-17	FAAC S.p.A.	Schranke mit symmetrischem Antrieb
FR2669075A1 (fr) *	1990-11-09	1992-05-15	Ero Automatisme	Dispositif d'actionnement pour barriere automatique.
EP0487755A1 (de) *	1990-11-26	1992-06-03	Scheidt & Bachmann Gmbh	Elektrohydraulischer Schrankenantrieb

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN102518055A (zh) *	2011-12-06	2012-06-27	中国核电工程有限公司	高强度抗撞装置
WO2014172311A3 (en) *	2013-04-18	2015-03-26	Siemens Industry, Inc.	User configurable horizontal brake feature for railroad crossing gates
US9272721B2 (en)	2013-04-18	2016-03-01	Siemens Industry, Inc.	User configurable horizontal brake feature for railroad crossing gates
CN107705698A (zh) *	2017-08-08	2018-02-16	广西南宁东能建筑工程技术有限公司	一种新型交通指示牌装置
CN107784925A (zh) *	2017-08-08	2018-03-09	广西南宁东能建筑工程技术有限公司	一种改进型交通指示牌装置
CN107705698B (zh) *	2017-08-08	2019-09-03	台州中海道路设施有限公司	一种交通指示牌装置
CN107784925B (zh) *	2017-08-08	2019-11-15	湖北工业大学	一种交通指示牌装置

Also Published As

Publication number	Publication date
DE69304256D1 (de)	1996-10-02
ES2090942T3 (es)	1996-10-16
ITFI920116A1 (it)	1993-11-28
IT1258735B (it)	1996-02-27
ITFI920116A0 (it)	1992-05-28
DK0572362T3 (da)	1996-09-16
EP0572362B1 (de)	1996-08-28
ATE141978T1 (de)	1996-09-15
GR3020904T3 (en)	1996-11-30
DE69304256T2 (de)	1997-02-06

Publication	Publication Date	Title
US4490068A (en)	1984-12-25	Hydraulic safety barrier traffic-way controller
EP0566203B1 (de)	1997-07-09	Vorrichtung mit hydraulischen Gleichlaufzylindern
USRE33201E (en)	1990-04-17	Hydraulic safety barrier traffic-way controller
EP3737633B1 (de)	2023-10-25	Hydraulische hebestruktur mit vertikaler hubbewegung für kraftfahrzeuge und ähnliche fahrzeuge
US5016767A (en)	1991-05-21	Boom articulation mechanism with, simultaneously operable, cylinders
EP0572362B1 (de)	1996-08-28	Hydraulische Anlage zum Bedienen einer Schranke
DE69805147T2 (de)	2003-03-06	Hydraulischer Aufzug ohne Maschinenhaus
WO2012064450A1 (en)	2012-05-18	Auxiliary pressure relief reservoir for crash barrier
WO2001027499A1 (en)	2001-04-19	Low-level lift
US6009670A (en)	2000-01-04	Gate operator for vertical gate movement
KR20000039494A (ko)	2000-07-05	유압엘리베이터장치
US5325761A (en)	1994-07-05	Switching arrangement for controlling the speed of hydraulic drives
US8360678B2 (en)	2013-01-29	Crash barrier with over-pressure relief system
US5351440A (en)	1994-10-04	Vertical lift device
EP1932797A1 (de)	2008-06-18	Hebevorrichtung
US3308496A (en)	1967-03-14	Hydraulic operating system for opening bridges
EP2655232B1 (de)	2015-04-29	Aufzuganlage mit doppeldecker
EP0582332B1 (de)	1996-05-08	Positiv-Wirkungs-Gerät zur Herstellung einer Drehbewegung eines Lukendeckels mit Arretierung desselben in der Offenstellung
WO2006122735A1 (en)	2006-11-23	Lift device of column type
DE4302928C2 (de)	2003-11-20	Gleichlaufsteuerung
US4759262A (en)	1988-07-26	Apparatus for restraining rotary motion of a motor component
RU2128790C1 (ru)	1999-04-10	Гидравлический привод вывешивания и горизонтирования грузовой платформы
US7331435B2 (en)	2008-02-19	Continuously blockable arresting device
WO1995019313A1 (de)	1995-07-20	Selbstschöpfendes becherwerk
SU1654212A1 (ru)	1991-06-07	Привод шахтной подъемной машины

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