GB2169565A - Attitude control means for tipping apparatus or for the load support structure of a tipping vehicle - Google Patents

Attitude control means for tipping apparatus or for the load support structure of a tipping vehicle Download PDF

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Publication number
GB2169565A
GB2169565A GB08429624A GB8429624A GB2169565A GB 2169565 A GB2169565 A GB 2169565A GB 08429624 A GB08429624 A GB 08429624A GB 8429624 A GB8429624 A GB 8429624A GB 2169565 A GB2169565 A GB 2169565A
Authority
GB
United Kingdom
Prior art keywords
switch
tipping
vehicle
support structure
load support
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.)
Withdrawn
Application number
GB08429624A
Other versions
GB8429624D0 (en
Inventor
David Dugmore Banks
David Wignall
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.)
Scapa Engineering Ltd
Original Assignee
Scapa Engineering 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 Scapa Engineering Ltd filed Critical Scapa Engineering Ltd
Priority to GB08429624A priority Critical patent/GB2169565A/en
Publication of GB8429624D0 publication Critical patent/GB8429624D0/en
Publication of GB2169565A publication Critical patent/GB2169565A/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B60P1/162—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 the hydraulic system itself
    • 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

A tipping control apparatus for example for a tipping vehicle comprises a base, a load support structure arranged on such base, an hydraulic ram operable to tip the load support structure as the ram is extended, and one or more switches such as mercury switches arranged to be actuated when the inclination of the load support structure with respect to the horizontal exceeds a predetermined angle, actuation of the switch preventing further extension of the ram.

Description

SPECIFICATION Attitude control means for tipping apparatus or for the load support structure of a tipping vehicle This invention relates to apparatus for control of the attitude of a tipping apparatus or of the load support structure of a tipping vehicle.
Excessive tipping of a tipping apparatus or of the load support structure, particularly that of a vehicle not on horizontal ground can be dangerous and give rise to problems of instability.
Conventional attitude control arrangements permit a load supporting structure to be tilted to a predetermined maximum angle with respect to a vehicle chassis, but in the context of such conventional arrangements permitted safety margins may be exceeded in situations where the vehicle is facing up an incline.
According to the present invention tipping control apparatus comprises a base, a load support structure arranged on such a base, an hydraulic ram operable to tip the load support structure as the ram is extended, and a switch arranged to be actuated when the inclination of the load support structure with respect to the horizontal exceeds a predetermined angle, actuation of the switch preventing further extension of the ram.
The base may comprise the chassis of a tipping vehicle or merely a fixed arrangement for mounting a tipping load support structure.
The switch may comprise a gravity sensitive switch such as a mercury switch, pendulum switch or other tilt switch sensitive to the inclination of the switch to the horizontal. Use of a mercury switch is preferred on account of the cheapness and simplicity of construction thereof.
Use of apparatus in accordance with this invention confers a considerable advantage over previous arrangements in that in the context of tipping vehicles there is automatic compensation for any inclination of the ground upon which the vehicle is standing in determining the maximum inclination of the load support structure relative to the chassis.
If a vehicle is tipping downhill the maximum safe extension of the ram is less than if tipping uphill.
Furthermore there is the safety feature that the apparatus provides automatic compensation for movement of the vehicle during tipping, for example on account of settlement in soft ground.
The apparatus may be used to control the inclination of gravity fed apparatus such as a spreader.
A plurality of uni-directional tilt switches may be provided, being arranged to provide signals upon attainment of predetermined inclinations in respective directions.
The invention is further described by means of example and not in any limitative sense with reference to the accompanying drawing which illustrates a tilt switch assembly in accordance with this invention.
The Figure shows an assembly of three mercury switches 1, 2, 3 for use in apparatus in accordance with this invention. The two switches 1, 3 are arranged to be actuated when the assembly is tilted to a predetermined angle to the vertical in the left or right hand directions respectively. The assembly may be located on the load supporting structure of a tipper vehicle. Alternatively the assembly may be located on the hydraulic ram or on any other structure the inclination of which bears a fixed relation to that of the load supporting structure.
The three switches may be connected in series and arranged so that one or more breaks a control circuit to the hydraulic ram when tilted to a predetermined angle. Switches 1 and 3 may serve to detect lateral tilting while perpendicularly mounted switch 2 serves to detect excessive rearward tilting.
The switch assembly may be located on the chassis adjacent the rear or other axle of a vehicle in accordance with this invention, providing an immediate indication of sinking of one or more wheels in soft ground.
1. Tipping control apparatus comprising a base, a load support structure arranged on such base, an hydraulic ram operable to tip the load support structure as the ram is extended, and a switch arranged to be actuated when the inclination of the load support structure with respect to the horizontal exceeds a predetermined angle, actuation of the switch preventing further extension of the ram.
2. Apparatus as claimed in claim 1, wherein the base comprises the chassis of a tipping vehicle.
3. Apparatus as claimed in claim 1 or 2, wherein the switch is sensitive to the inclination of the switch to the horizontal.
4. Apparatus as claimed in claim 3, wherein the switch is a mercury tilt switch.
5. Apparatus as claimed in claim 3 or 4, including a plurality of uni-directional tilt switches arranged to provide signals upon attainment of predetermined inclinations in respective directions.
6. Apparatus as claimed in any preceding claim, arranged to control the inclination of gravity fed apparatus.
7. Apparatus as claimed in any of claims 2 to 6, wherein said switch is located on the chassis adjacent an axle of the vehicle.
8. Apparatus as claimed in any preceding claim, wherein the switch is located upon the hydraulic ram.
9. Apparatus substantially as hereinbefore described with reference to the accompanying drawing.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (9)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Attitude control means for tipping apparatus or for the load support structure of a tipping vehicle This invention relates to apparatus for control of the attitude of a tipping apparatus or of the load support structure of a tipping vehicle. Excessive tipping of a tipping apparatus or of the load support structure, particularly that of a vehicle not on horizontal ground can be dangerous and give rise to problems of instability. Conventional attitude control arrangements permit a load supporting structure to be tilted to a predetermined maximum angle with respect to a vehicle chassis, but in the context of such conventional arrangements permitted safety margins may be exceeded in situations where the vehicle is facing up an incline. According to the present invention tipping control apparatus comprises a base, a load support structure arranged on such a base, an hydraulic ram operable to tip the load support structure as the ram is extended, and a switch arranged to be actuated when the inclination of the load support structure with respect to the horizontal exceeds a predetermined angle, actuation of the switch preventing further extension of the ram. The base may comprise the chassis of a tipping vehicle or merely a fixed arrangement for mounting a tipping load support structure. The switch may comprise a gravity sensitive switch such as a mercury switch, pendulum switch or other tilt switch sensitive to the inclination of the switch to the horizontal. Use of a mercury switch is preferred on account of the cheapness and simplicity of construction thereof. Use of apparatus in accordance with this invention confers a considerable advantage over previous arrangements in that in the context of tipping vehicles there is automatic compensation for any inclination of the ground upon which the vehicle is standing in determining the maximum inclination of the load support structure relative to the chassis. If a vehicle is tipping downhill the maximum safe extension of the ram is less than if tipping uphill. Furthermore there is the safety feature that the apparatus provides automatic compensation for movement of the vehicle during tipping, for example on account of settlement in soft ground. The apparatus may be used to control the inclination of gravity fed apparatus such as a spreader. A plurality of uni-directional tilt switches may be provided, being arranged to provide signals upon attainment of predetermined inclinations in respective directions. The invention is further described by means of example and not in any limitative sense with reference to the accompanying drawing which illustrates a tilt switch assembly in accordance with this invention. The Figure shows an assembly of three mercury switches 1, 2, 3 for use in apparatus in accordance with this invention. The two switches 1, 3 are arranged to be actuated when the assembly is tilted to a predetermined angle to the vertical in the left or right hand directions respectively. The assembly may be located on the load supporting structure of a tipper vehicle. Alternatively the assembly may be located on the hydraulic ram or on any other structure the inclination of which bears a fixed relation to that of the load supporting structure. The three switches may be connected in series and arranged so that one or more breaks a control circuit to the hydraulic ram when tilted to a predetermined angle. Switches 1 and 3 may serve to detect lateral tilting while perpendicularly mounted switch 2 serves to detect excessive rearward tilting. The switch assembly may be located on the chassis adjacent the rear or other axle of a vehicle in accordance with this invention, providing an immediate indication of sinking of one or more wheels in soft ground. CLAIMS
1. Tipping control apparatus comprising a base, a load support structure arranged on such base, an hydraulic ram operable to tip the load support structure as the ram is extended, and a switch arranged to be actuated when the inclination of the load support structure with respect to the horizontal exceeds a predetermined angle, actuation of the switch preventing further extension of the ram.
2. Apparatus as claimed in claim 1, wherein the base comprises the chassis of a tipping vehicle.
3. Apparatus as claimed in claim 1 or 2, wherein the switch is sensitive to the inclination of the switch to the horizontal.
4. Apparatus as claimed in claim 3, wherein the switch is a mercury tilt switch.
5. Apparatus as claimed in claim 3 or 4, including a plurality of uni-directional tilt switches arranged to provide signals upon attainment of predetermined inclinations in respective directions.
6. Apparatus as claimed in any preceding claim, arranged to control the inclination of gravity fed apparatus.
7. Apparatus as claimed in any of claims 2 to 6, wherein said switch is located on the chassis adjacent an axle of the vehicle.
8. Apparatus as claimed in any preceding claim, wherein the switch is located upon the hydraulic ram.
9. Apparatus substantially as hereinbefore described with reference to the accompanying drawing.
GB08429624A 1984-11-23 1984-11-23 Attitude control means for tipping apparatus or for the load support structure of a tipping vehicle Withdrawn GB2169565A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08429624A GB2169565A (en) 1984-11-23 1984-11-23 Attitude control means for tipping apparatus or for the load support structure of a tipping vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08429624A GB2169565A (en) 1984-11-23 1984-11-23 Attitude control means for tipping apparatus or for the load support structure of a tipping vehicle

Publications (2)

Publication Number Publication Date
GB8429624D0 GB8429624D0 (en) 1985-01-03
GB2169565A true GB2169565A (en) 1986-07-16

Family

ID=10570159

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08429624A Withdrawn GB2169565A (en) 1984-11-23 1984-11-23 Attitude control means for tipping apparatus or for the load support structure of a tipping vehicle

Country Status (1)

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GB (1) GB2169565A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1459932A1 (en) * 2003-03-17 2004-09-22 HEGLA Fahrzeug- u. Maschinenbau GmbH & Co. KG Apparatus for securing the inclination of transport rack on a vehicle
GB2536066A (en) * 2015-03-06 2016-09-07 Hyva Holding Bv Method and system for operating a tipper
US10189393B2 (en) 2015-03-06 2019-01-29 Hyva Holding B.V. Method and system for operating a tipper

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB500232A (en) * 1937-08-23 1939-02-06 Bromilow And Edwards Ltd Improvements in and relating to tipping vehicles
GB501629A (en) * 1938-04-08 1939-03-02 William C Anthony Tipping mechanism for tilting a receptacle or body
GB1320853A (en) * 1971-04-29 1973-06-20 Neville Ind Mansfield Ltd Safety means for tipping vehicles
US3741608A (en) * 1970-07-27 1973-06-26 W Webb Load discharge control system
US3921128A (en) * 1974-05-28 1975-11-18 Edwin Des Snead Truck roll warning system
US4382632A (en) * 1982-06-10 1983-05-10 Pitts Charlie C Dumping vehicle stabilizer system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB500232A (en) * 1937-08-23 1939-02-06 Bromilow And Edwards Ltd Improvements in and relating to tipping vehicles
GB501629A (en) * 1938-04-08 1939-03-02 William C Anthony Tipping mechanism for tilting a receptacle or body
US3741608A (en) * 1970-07-27 1973-06-26 W Webb Load discharge control system
GB1320853A (en) * 1971-04-29 1973-06-20 Neville Ind Mansfield Ltd Safety means for tipping vehicles
US3921128A (en) * 1974-05-28 1975-11-18 Edwin Des Snead Truck roll warning system
US4382632A (en) * 1982-06-10 1983-05-10 Pitts Charlie C Dumping vehicle stabilizer system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1459932A1 (en) * 2003-03-17 2004-09-22 HEGLA Fahrzeug- u. Maschinenbau GmbH & Co. KG Apparatus for securing the inclination of transport rack on a vehicle
GB2536066A (en) * 2015-03-06 2016-09-07 Hyva Holding Bv Method and system for operating a tipper
US10076989B2 (en) 2015-03-06 2018-09-18 Hyva Holding B.V. Method and system for operating a tipper
US10189393B2 (en) 2015-03-06 2019-01-29 Hyva Holding B.V. Method and system for operating a tipper

Also Published As

Publication number Publication date
GB8429624D0 (en) 1985-01-03

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Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)