ES2216679A1 - Handling control device in load basculation. - Google Patents

Handling control device in load basculation.

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Publication number
ES2216679A1
ES2216679A1 ES200201110A ES200201110A ES2216679A1 ES 2216679 A1 ES2216679 A1 ES 2216679A1 ES 200201110 A ES200201110 A ES 200201110A ES 200201110 A ES200201110 A ES 200201110A ES 2216679 A1 ES2216679 A1 ES 2216679A1
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ES
Spain
Prior art keywords
box
cylinder
load
tilting
control device
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
ES200201110A
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Spanish (es)
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ES2216679B1 (en
Inventor
Rafael Botella Gallardo
Matias Hernandez Marco
Antonio Galvan Mira
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Publication of ES2216679A1 publication Critical patent/ES2216679A1/en
Application granted granted Critical
Publication of ES2216679B1 publication Critical patent/ES2216679B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
    • B60K28/10—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle 
    • B60K28/14—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle  responsive to accident or emergency, e.g. deceleration, tilt of vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
    • B60P1/04—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element
    • B60P1/045—Levelling or stabilising systems for tippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
    • B60P1/04—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element
    • B60P1/16—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element actuated by fluid-operated mechanisms
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00—Measuring inclination, e.g. by clinometers, by levels
    • G01C9/12—Measuring inclination, e.g. by clinometers, by levels by using a single pendulum plumb lines G01C15/10
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00—Measuring inclination, e.g. by clinometers, by levels
    • G01C9/16—Measuring inclination, e.g. by clinometers, by levels by using more than one pendulum
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/02—Switches operated by change of position, inclination or orientation of the switch itself in relation to gravitational field

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Vehicle Body Suspensions (AREA)
  • Motorcycle And Bicycle Frame (AREA)

Abstract

Handling control device in load basculation. The device is designed to be applied in basculating boxes of transport vehicles to prevent tipping upon detecting excessive inclination or lateral movement during basculation handling of said box, so that once the considered critical position is detected, a signal is sent to the basculation activation system to change the latter's action. The device includes a casing that is fixed directly to the front part of the vehicle's box, a casing with has two compartments, each mounting a detection unit, formed in each case by a cylinder (1) within which is mounted a vertical pendulum (10) placed between a pair of blocks that are diametrically opposite (7) to a ring (6) horizontally and diametrically fixed inside the cylinder (1), between the wings (8) of one of the cylinder (1) covers (3).

Description

Mejoras en la patente de invención n° 200102676, por: "Dispositivo de control, de maniobrabilidad en basculación de carga".Improvements in invention patent No. 200102676, by: "Control device, maneuverability in tilting of load".

Objeto de la invenciónObject of the invention

La presente invención se refiere a una serie de mejoras introducidas en la patente de invención principal P200102676, en la que se describe un dispositivo de control de maniobrabilidad de basculación de cargas, dispositivo previsto para detectar posibles desplazamientos laterales que se puedan originar durante la operación de basculación de una carga, al objeto de producir la parada del sistema que realiza la basculación, evitando con ello el posible vuelco del contenedor de la carga, todo ello en base a la oscilación de un péndulo.The present invention relates to a series of improvements introduced in the main invention patent P200102676, which describes a control device for load tilt maneuverability, device intended for detect possible lateral displacements that may originate during the operation of tilting a load, in order to produce the stop of the system that performs the tilt, avoiding with it the possible overturning of the cargo container, all in base to the swing of a pendulum.

El objeto de la invención es la incorporación de unas mejoras que por un lado impiden que la actuación sobre el sistema no sea instantánea, y por otro lado para controlar el funcionamiento de dicho sistema, entendiéndose por sistema los medios (cilindro o cilindros hidráulicos o neumáticos) que actúan en la elevación y/o basculamiento del contenedor de la carga, como puede ser la caja de un vehículo.The object of the invention is the incorporation of some improvements that on the one hand prevent the action on the system is not instantaneous, and on the other hand to control the operation of said system, the system being understood as means (cylinder or hydraulic or pneumatic cylinders) acting in  the lifting and / or tilting of the cargo container, such as It can be the case of a vehicle.

Antecedentes de la invenciónBackground of the invention

En la patente de invención P200102676 se describe un dispositivo de control de maniobrabilidad en basculación de cargas, previsto para ser utilizado en cajas basculantes de vehículos de transporte, en orden a evitar el riesgo de vuelco ante la detección de una excesiva inclinación o desplazamiento lateral durante la maniobra de basculamiento de dicha caja, para descarga del vehículo.The invention patent P200102676 describes a maneuvering control device in tilting of loads, intended to be used in tilting boxes of transport vehicles, in order to avoid the risk of tipping over the detection of excessive inclination or lateral displacement during the tilting maneuver of said box, for unloading vehicle.

El dispositivo descrito en esa patente de invención principal, se basa en un péndulo montado con libertad de basculación sobre una aro soporte, a través de un imaginario eje paralelo al eje longitudinal de la caja de carga del vehículo, de manera que cuando dicha caja bascula para su descarga y lo hace correctamente el citado péndulo se mantiene estable, mientras que cuando durante la basculación ascendente de la caja se produce simultáneamente una inclinación lateral de la misma, por desplazamiento del centro de gravedad de la carga, por un desnivel en el terreno o por cualquier otra causa, el citado péndulo bascula también lateralmente y al alcanzar una posición considerada como crítica, se genera una señal para interrumpir el movimiento de basculación de la caja o para invertir el sentido de basculación de la misma.The device described in that patent of main invention, is based on a pendulum mounted with freedom of tilting on a support ring, through an imaginary axis parallel to the longitudinal axis of the vehicle's cargo box, of so that when said box tilts for unloading and does correctly said pendulum remains stable, while when during the upward tilting of the box occurs simultaneously a lateral inclination of it, by displacement of the center of gravity of the load, by an unevenness on the ground or for any other cause, the said pendulum also tilts laterally and when reaching a considered position as critical, a signal is generated to interrupt the movement of tilt of the box or to reverse the direction of tilt of the same.

Evidentemente, la interrupción de movimiento se efectúa mediante la activación de un interruptor que es el que interrumpe la alimentación hacia el cilindro o cilindros de basculamiento o elevación de la caja.Obviously, the interruption of movement is effect by activating a switch that is the one that interrupts the feed to the cylinder or cylinders of tilting or lifting the box.

En una adición a esa patente de invención principal se describían unas mejoras mediante las que se conseguía mantener el péndulo estable, excepto en aquellos momentos en los que se requiere su funcionamiento, en orden a que durante el uso normal del vehículo el péndulo permaneciera inmovilizado, mientras que cuando se inicia la maniobra de basculación de la carga, el péndulo se libera para generar la correspondiente señal de inclinación lateral de la caja.In an addition to that invention patent main improvements were described by which it was achieved keep the pendulum stable, except at those times when that its operation is required, in order that during use normal vehicle the pendulum remained immobilized while that when the load tilt maneuver starts, the pendulum is released to generate the corresponding signal from lateral inclination of the box.

Descripción de la invenciónDescription of the invention

Las mejoras que se preconizan están previstas para que el dispositivo de la patente de invención principal no actúe en el caso de que se produzca un movimiento accidental sobre el péndulo, así como para controlar el sistema de maniobrabilidad, o lo que es lo mismo del cilindro o cilindros de elevación de la caja del vehículo.The improvements that are recommended are planned so that the device of the main invention patent does not act in the event of an accidental movement on the pendulum, as well as to control the maneuverability system, or what is the same of the cylinder or lifting cylinders of the vehicle box

Más concretamente, una de las mejoras de la invención consiste en la incorporación al interruptor establecido en el dispositivo de la patente de invención principal, de un circuito retardador electrónico para que la actuación sobre el cilindro de elevación de la caja no sea instantánea, consiguiéndose con ello que si el movimiento del péndulo es accidental, debido por ejemplo a las vibraciones del vehículo o a cualquier otra causa, el dispositivo de control no actúe, requiriéndose una señal relativamente constante, como la que se produce realmente cuando la caja está inclinada, para que la válvula correspondiente interrumpa la alimentación de fluido al cilindro o cilindros que actúan levantando la caja.More specifically, one of the improvements of the invention consists of incorporating into the established switch in the device of the main invention patent, of a electronic retarder circuit so that the performance on the box lift cylinder is not instantaneous, getting with it that if the movement of the pendulum is accidental, due to example to vehicle vibrations or any other cause, the control device does not act, requiring a signal relatively constant, like the one that actually occurs when the box is tilted, so that the corresponding valve interrupts the fluid supply to the cylinder or cylinders that act lifting the box.

Otra mejora de la invención consiste en el propio circuito utilizado para controlar el propio cilindro o cilindros de elevación de la caja, previéndose para ello una electroválvula que controla la válvula principal, actuando precisamente cuando recibe la señal eléctrica del péndulo correspondiente al dispositivo.Another improvement of the invention consists in the own one circuit used to control the cylinder itself or cylinders of elevation of the box, providing for this an electrovalve that controls the main valve, acting precisely when it receives the electrical signal of the pendulum corresponding to the device.

Dicha electroválvula puede montarse en un vehículo dotado ya de la válvula principal prevista como medio de seguridad frente a la sobrecarga del camión, o frente a una sobrepresión en el circuito o a cualquier otra anomalía, o bien formar un conjunto con dicha válvula principal en el caso de que el vehículo no incluya esta válvula de seguridad, complementándose con un selector de circuito que permite dejar una entrada opcional utilizable, por ejemplo, para un final de carrera neumático del cilindro o cilindros o de cualquier otro tipo de dispositivo neumático.Said solenoid valve can be mounted on a vehicle already equipped with the main valve provided as a means of safety against truck overload, or against a overpressure in the circuit or any other anomaly, or form a set with said main valve in the event that the vehicle does not include this safety valve, supplemented by a circuit selector that allows to leave an optional input usable, for example, for a pneumatic limit switch of the cylinder or cylinders or any other type of device tire.

Como ya se ha dicho con anterioridad, la primera mejora, consistente en la incorporación del circuito retardador electrónico, evita señales eléctricas no deseadas, producidas por rebotes eléctricos ocasionados por efecto de vibraciones del propio vehículo, es decir evita, como se decía con anterioridad, que no actúe el dispositivo cuando se produce un movimiento accidental del péndulo.As previously stated, the first improvement, consisting of the incorporation of the retarder circuit electronic, prevents unwanted electrical signals, produced by electric bounces caused by vibrations vehicle, that is to say avoid, as previously stated, that no operate the device when an accidental movement of the pendulum.

Descripción de los dibujosDescription of the drawings

Para complementar la descripción que se está realizando y con objeto de ayudar a una mejor comprensión de las características del invento, de acuerdo con un ejemplo preferente de realización práctica del mismo, se acompaña como parte integrante de dicha descripción, donde con carácter ilustrativo y no limitativo, se ha representado el esquema correspondiente al circuito neumático del que forman parte tanto la electroválvula, como la válvula de seguridad y el selector de circuito, establecido todo ello en un bloque o conjunto único para su instalación en el correspondiente vehículo.To complement the description that is being performing and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical realization of it, is accompanied as part member of said description, where illustrative and non-limiting, the scheme corresponding to the pneumatic circuit of which both the solenoid valve are part, such as safety valve and circuit selector, set all in a single block or assembly for installation in the corresponding vehicle.

Realización preferente de la invenciónPreferred Embodiment of the Invention

A la vista de la figura reseñada puede observarse la electroválvula (1) como elemento fundamental de la invención, con la entrada de presión neumático (2) y la salida o escape neumático (3), cuya electroválvula (1) está prevista para controlar una válvula de seguridad (4) que, a través de un presostato (5), tiene su correspondiente salida (6) conectada al cilindro o cilindros de actuación para basculamiento o inclinación de la caja de un vehículo para la descarga de éste, y cuya válvula de seguridad (4) presenta una vía de entrada de presión hidráulica (7) y una vía de retomo (8) al tanque. Entre la electroválvula (1) y la válvula de seguridad (4) se ha previsto un selector de circuito (9) con una entrada opcional (10), que permite utilizar la válvula de seguridad (4) como final de carrera.In view of the review figure can be observed the solenoid valve (1) as a fundamental element of the invention, with pneumatic pressure inlet (2) and outlet or exhaust pneumatic (3), whose solenoid valve (1) is intended to control a safety valve (4) which, through a pressure switch (5), has its corresponding outlet (6) connected to the cylinder or actuation cylinders for tilting or tilting the box of a vehicle for unloading it, and whose valve safety (4) presents a hydraulic pressure inlet path (7) and a return path (8) to the tank. Between the solenoid valve (1) and the safety valve (4) a circuit selector (9) is provided with an optional inlet (10), which allows to use the valve Security (4) as the end of the race.

La electroválvula (1) controla la válvula de seguridad (4), actuando precisamente cuando recibe la señal eléctrica del correspondiente péndulo del dispositivo que ha de actuar sobre el cilindro de basculación de la caja del vehículo, de manera tal que cuando el vehículo en cuestión lleve incorporada ya la válvula de seguridad (4), como ocurre en ocasiones, bastará con incorporar la electroválvula (1) y asociarla convenientemente con aquella, mientras que cuando el vehículo carece de esa válvula de seguridad (4), entonces la electroválvula (1), la válvula de seguridad (4), el peresostato (5) y el selector de circuito (9), forman un conjunto monobloque implantable directamente en el vehículo, para mayor simplicidad, pudiendo realizarse la instalación íntegramente en el semirremolque, es decir en la parte donde está establecida la caja del vehículo, evitando con ello cualquier tipo de actuación sobre la cabeza tractora del propio vehículo, siempre de que se trate de un vehículo articulado.The solenoid valve (1) controls the valve security (4), acting precisely when it receives the signal electrical of the corresponding pendulum of the device to be act on the tilt cylinder of the vehicle housing, of such that when the vehicle in question has already incorporated the safety valve (4), as sometimes happens, will suffice with incorporate the solenoid valve (1) and associate it conveniently with that, while when the vehicle lacks that valve safety (4), then the solenoid valve (1), the valve safety (4), peresostat (5) and circuit selector (9), they form an implantable monobloc assembly directly in the vehicle, for simplicity, being able to perform the installation entirely in the semi-trailer, that is in the part where the vehicle case is established, thereby avoiding any type of action on the tractor unit itself vehicle, provided that it is an articulated vehicle.

Como ya se ha dicho también con anterioridad, la válvula (4) actúa como medio de seguridad frente a sobrecargas del vehículo, o bien a una sobrepresión en el circuito por cualquier otro fallo o anomalía, de manera que antes que el cilindro pueda resultar dañado esa válvula de seguridad (4) conecta la fuente de presión con el retorno (8) al tanque, quedando la alimentación (6) del cilindro o cilindros de elevación de la caja interrumpido.As already said before, the valve (4) acts as a means of safety against overloads of the vehicle, or to an overpressure in the circuit by any another failure or anomaly, so that before the cylinder can be damaged that safety valve (4) connects the source of pressure with the return (8) to the tank, leaving the power supply (6) of the cylinder or lifting cylinders of the interrupted box.

Finalmente, decir que el selector de circuito (9) será el encargado de suministrar los pilotajes de fin de carrera y accionamiento del propio dispositivo hacia la válvula de seguridad (4), sin que dichas actuaciones se interfieran entre sí.Finally, say that the circuit selector (9) will be responsible for supplying the end of race pilots and actuation of the device itself towards the safety valve (4), without such actions interfering with each other.

Claims (3)

1. Mejoras introducidas en la patente de invención 200102676 por "Dispositivo de control de maniobrabilidad en basculación de cargas", basándose el dispositivo en uno o dos péndulos montados con libertad de basculación sobre respectivos soportes, de manera que ante una eventual inclinación o basculación lateral de la caja de carga de un vehículo, uno de tales péndulos genera una señal que activa un interruptor para interrumpir o invertir la maniobra de elevación de la caja, caracterizadas porque sobre el interruptor de maniobra de elevación de la caja se incorpora un circuito retardador electrónico que evita que el accionamiento sobre el cilindro de elevación de la caja sea instantáneo, ante un movimiento accidental del péndulo originado por vibraciones u otras causas, con la particularidad de que dicho circuito retardador actúa sobre una electroválvula (1) que controla a una válvula de seguridad (4) a través de la cual se proporciona la alimentación al cilindro hidráulico de elevación de la caja o se envía el fluido mediante un retomo al tanque correspondiente, interrumpiendo la alimentación a dicho cilindro de accionamiento.1. Improvements introduced in the invention patent 200102676 for "Maneuverability control device in load tilting", the device based on one or two pendulums mounted with freedom of tilting on respective supports, so that in case of eventual inclination or lateral tilting of the load box of a vehicle, one of such pendulums generates a signal that activates a switch to interrupt or reverse the lifting maneuver of the box, characterized in that an electronic retarder circuit is incorporated over the lifting maneuver switch of the box which prevents the actuation on the lifting cylinder of the box from being instantaneous, before an accidental movement of the pendulum caused by vibrations or other causes, with the particularity that said retarder circuit acts on an electrovalve (1) that controls a valve of safety (4) through which power is provided to the cylinder hi hydraulic lifting of the box or the fluid is sent by means of a return to the corresponding tank, interrupting the supply to said drive cylinder. 2. Mejoras introducidas en la patente de invención 200102676 por "Dispositivo de control de maniobrabilidad en basculación de cargas", según reivindicación 1ª, caracterizadas porque entre la electroválvula (1) y la válvula de seguridad (4) se ha previsto un selector de circuito (9).2. Improvements introduced in the invention patent 200102676 for "Maneuverability control device in load tilting", according to claim 1, characterized in that a circuit selector is provided between the solenoid valve (1) and the safety valve (4) (9). 3. Mejoras introducidas en la patente de invención 200102676 por "Dispositivo de control de maniobrabilidad en basculación de cargas", según reivindicaciones anteriores, caracterizadas porque la electroválvula (1), la válvula de seguridad (4) y el selector de circuito (9), son susceptibles de constituir un conjunto monobloque instalable como el elemento único en el propio vehículo.3. Improvements introduced in the invention patent 200102676 for "Maneuverability control device in load tilting", according to previous claims, characterized in that the solenoid valve (1), the safety valve (4) and the circuit selector (9) , are likely to constitute an installable monobloc assembly as the unique element in the vehicle itself.
ES200201110A 2001-11-30 2002-05-16 IMPROVEMENTS IN THE PATENT OF INVENTION N. 200102676, FOR "MANUALBRABILITY CONTROL DEVICE IN LOAD TILT". Expired - Fee Related ES2216679B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200102676A ES2187388B1 (en) 2001-11-30 2001-11-30 MANUALBRABILITY CONTROL DEVICE IN LOAD BASCULATION.

Publications (2)

Publication Number Publication Date
ES2216679A1 true ES2216679A1 (en) 2004-10-16
ES2216679B1 ES2216679B1 (en) 2005-09-16

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Application Number Title Priority Date Filing Date
ES200102676A Expired - Fee Related ES2187388B1 (en) 2001-11-30 2001-11-30 MANUALBRABILITY CONTROL DEVICE IN LOAD BASCULATION.
ES200201110A Expired - Fee Related ES2216679B1 (en) 2001-11-30 2002-05-16 IMPROVEMENTS IN THE PATENT OF INVENTION N. 200102676, FOR "MANUALBRABILITY CONTROL DEVICE IN LOAD TILT".
ES200302879A Expired - Fee Related ES2235631B1 (en) 2001-11-30 2003-12-05 IMPROVEMENTS IN THE PATENT OF INVENTION 200102676 FOR "MANUALBRABILITY CONTROL DEVICE IN LOAD SCROLLING".

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ES200102676A Expired - Fee Related ES2187388B1 (en) 2001-11-30 2001-11-30 MANUALBRABILITY CONTROL DEVICE IN LOAD BASCULATION.

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Application Number Title Priority Date Filing Date
ES200302879A Expired - Fee Related ES2235631B1 (en) 2001-11-30 2003-12-05 IMPROVEMENTS IN THE PATENT OF INVENTION 200102676 FOR "MANUALBRABILITY CONTROL DEVICE IN LOAD SCROLLING".

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938823A (en) * 1973-05-29 1976-02-17 Nissan Motor Company Limited Fluid operated vehicle body level control system
US4382632A (en) * 1982-06-10 1983-05-10 Pitts Charlie C Dumping vehicle stabilizer system
US5742228A (en) * 1993-12-24 1998-04-21 Litan Advanced Instrumentation Ltd. System for preventing tipper truck overturning

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Publication number Priority date Publication date Assignee Title
US3548400A (en) * 1967-09-29 1970-12-15 Chalmers & Mitchell Ltd Ship's trim indicator
DE1755441A1 (en) * 1968-05-08 1972-03-16 Decre & Co Warning system, especially for combine harvesters
SE364791B (en) * 1972-07-10 1974-03-04 A Larsson
DD211404A1 (en) * 1982-11-10 1984-07-11 Schwermasch Kirow Veb K DEVICE FOR MEASURING SLOPES OF LOCAL BUILDING MACHINES
US4606133A (en) * 1985-05-28 1986-08-19 Mills Floyd J High resolution digital inclinometer
FR2640042B1 (en) * 1988-12-06 1991-03-22 Crouzet Sa PENDULUM INCLINOMETER WITH OPTICAL READING
US4988974A (en) * 1989-07-17 1991-01-29 Fury Tommy J Warning and safety system indicating truck trailer tip-over condition

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938823A (en) * 1973-05-29 1976-02-17 Nissan Motor Company Limited Fluid operated vehicle body level control system
US4382632A (en) * 1982-06-10 1983-05-10 Pitts Charlie C Dumping vehicle stabilizer system
US5742228A (en) * 1993-12-24 1998-04-21 Litan Advanced Instrumentation Ltd. System for preventing tipper truck overturning

Also Published As

Publication number Publication date
ES2235631B1 (en) 2006-11-01
ES2235631A1 (en) 2005-07-01
ES2216679B1 (en) 2005-09-16
ES2187388A1 (en) 2003-06-01
ES2187388B1 (en) 2004-09-16

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