NZ572954A - A tilting alarm system for a machine having a vibratory roller - Google Patents

A tilting alarm system for a machine having a vibratory roller

Info

Publication number
NZ572954A
NZ572954A NZ572954A NZ57295407A NZ572954A NZ 572954 A NZ572954 A NZ 572954A NZ 572954 A NZ572954 A NZ 572954A NZ 57295407 A NZ57295407 A NZ 57295407A NZ 572954 A NZ572954 A NZ 572954A
Authority
NZ
New Zealand
Prior art keywords
alarm system
tilting
vibratory
roller
vibratory roller
Prior art date
Application number
NZ572954A
Inventor
John Ibrahim
Original Assignee
Conplant Pty 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
Priority claimed from AU2006902521A external-priority patent/AU2006902521A0/en
Application filed by Conplant Pty Ltd filed Critical Conplant Pty Ltd
Publication of NZ572954A publication Critical patent/NZ572954A/en

Links

Classifications

    • 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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
    • E01C19/26—Rollers therefor; Such rollers usable also for compacting soil self-propelled or fitted to road vehicles
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
    • E01C19/28—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
    • E01C19/282—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows self-propelled, e.g. with an own traction-unit
    • E01C19/283—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows self-propelled, e.g. with an own traction-unit pedestrian-controlled, e.g. with safety arrangements for operator
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Road Paving Machines (AREA)
  • Component Parts Of Construction Machinery (AREA)

Abstract

A tilting alarm system (10) for a mobile machine having at least one vibratory roller is disclosed. The tilting alarm system (10) includes a tilt sensor (11) to sense the tilt angle of the roller and an audible and/or visual alarm (20, 21, 22) to be activated by the tilt sensor (11) when the tilt angle exceeds first predetermined value. Also included is a vibration interruption circuit to shut down the vibratory system of the vibratory roller when the tilt angle exceeds a second predetermined value.

Description

WO 2007/131272 PCT/AU2007/000636 1 TILTING ALARM FOR A MOBILE MACHINE TECHNICAL FIELD This invention relates to a tilting alarm system for a mobile machine having a prime mover and an articulated component such as a vibratory 5 compaction roller.
BACKGROUND ART For the sake of convenience, the invention will be described in relation to a smooth drum, vibrating single drum compaction roller but it is to be understood that the invention is not limited thereto as the tilting alarm system 10 may be used in other circumstances where there is a need to warn an operator of the possibility of rollover.
A typical smooth drum, single drum vibratory roller consists of a prime mover having a forwardly mounted vibratory drum roller which is supported by a frame with its axis of rotation transverse to the direction of movement of the 15 prime mover. The drum frame is pivotally mounted on the prime mover to allow limited pivotal movement of the frame about the axis of movement of the prime mover.
There is a need for an alarm system adapted to warn of an minimise the possibility of rollover of the compaction roller should the angle of tilt of the roller 20 exceed a predetermined value. The pendulum switch may be mounted at or near the articulation point of the roller.
SUMMARY OF THE INVENTION According to one aspect of the invention there is provided a tilting alarm system for a machine having a prime mover and an articulated roller, the alarm 25 system comprising a pendulum switch adapted to sense the transverse tilt angle of the roller with respect to the prime mover and an audible and/or visual WO 2007/131272 PCT/AU2007/000636 2 alarm adapted to be activated by the pendulum switch when the tilt angle exceeds a predetermined value.
In a preferred form of the invention, the roller is a vibratory roller and the tilt alarm system includes a vibration interrupter relay which de-energises the 5 vibratory system when the tilt angle exceeds a second predetermined value that is larger than the first predetermined value.
It is preferred that both the audible and/or visual alarm as well as the vibration interrupter relay are connected to adjustable time delays to allow for short bumps and sways.
BRIEF DESCRIPTION OF THE DRAWING Fig. 1 is a schematic diagram of a tilting alarm system according to one embodiment of the invention.
MODES FOR CARRYING OUT THE INVENTION As shown in Fig. 1, the tilting alarm system 10 of one embodiment of the 15 invention includes a level pendulum switch 11 having outwardly directed arms 12 and 13 each of which has inwardly directed operating fingers 14 and 15 respectively. The pendulum switch 11 is pivotally mounted about axis 16. When the pendulum switch 11 is in its normal or neutral position as shown in Fig. 1 where the roller (not shown) is not tilted, the operating fingers 14 and 15 20 are clear of inductive pick ups 17 and 18 respectively.
The inductive pick ups 17 and 18 are electrically connected to a maximum oscillation variable timer relay 19 which in turn is connected to an alarm and warning light relay 20 that is adapted to energise the warning light 21 and/or the audible alarm 22.
In between the inductive pick ups 17 and 18 there is a central inductive pick up 23 which operates the vibration interrupt circuit. The central pick up 23 3 is electrically connected to the vibration cut-out variable timer relay 24 which in turn is connected to the vibration interrupt relay 25.
The pendulum switch 11 is mounted at the articulation point of the vibratory roller to sense the transverse tilt angle of the front section of the 5 vibratory roller. The angle of tilt is sensed in two stages. In the first stage, a tilt angle between 5° to 15° (depending on the model of the roller) activates the audible alarm 22 and the warning light 21 mounted adjacent the operator to warn the operator that the front of the roller has reached a dangerous tilt angle.
In the second stage, when the tilt angle is between 5° to 15° (depending 10 on the model of roller), the vibration interrupt relay 24 (which is wired into the roller vibration circuit) shuts down the vibration mechanism of the roller reducing the slide effect of the slope to further warn the operator of a critical tilt angle.

Claims (7)

From:Maxwe11 & Associates To:00156449783691 07/11/2011 13:36 #188 P.003/003 Received at IPONZ on 7 November 2011 4 THE CLAIMS DEFINING THE INVENTION ARE AS FOLLOWS:
1. A tilting alarm system for a mobile machine having a vibratory roller, the alarm system comprising a tilt sensor adapted to sense the tilt angle of the vibratory roller and a first audible and/or visual alert adapted to be activated by the alarm system when the tilt angle exceeds a predetermined angle, and a vibration interrupt circuit adapted to de-energise a vibratory system of the vibratory roller when the tilt angle exceeds a second pre-determined angle that is larger than the first pre-determined angle.
2. A tilting alarm system of claim 1 wherein the vibration interrupt circuit is adapted to operate whilst the mobile machine is in motion and wherein the de-energising of the vibratory system does not prevent the operator of the mobile machine from operating the machine.
3. A tilting alarm system of claim 1 or claim 2 in which the tilt sensor comprises a pendulum switch employing inductive pickups.
4. The tilting alarm system of anyone of claims 1 to 3 wherein the alarm system is adapted to adjust for short bumps and sways.
5. The tilting alarm system of claim 4 wherein the alarm system is adapted to adjust for short bumps and sways by the incorporation of a variable time relay into the alarm system.
6. A vehicle comprising a vibratory roller and the tilting alarm system of anyone of claims 1 to 5. 2011-11-07 I / . RECEIVED at IPONZ on 7 October 2011 5
7. A tilting alarm system for a mobile machine having a vibratory roller substantially as hereinbefore described with reference to the accompanying drawings and associated description. Dated this 4th day of October 2011 Conplant Pty Limited Patent Attorneys for the Applicants PETER MAXWELL AND ASSOCIATES 2011-10-04
NZ572954A 2006-05-12 2007-05-11 A tilting alarm system for a machine having a vibratory roller NZ572954A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2006902521A AU2006902521A0 (en) 2006-05-12 Tilting alarm for a mobile vehicle
PCT/AU2007/000636 WO2007131272A1 (en) 2006-05-12 2007-05-11 Tilting alarm for a mobile machine

Publications (1)

Publication Number Publication Date
NZ572954A true NZ572954A (en) 2011-12-22

Family

ID=38693441

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ572954A NZ572954A (en) 2006-05-12 2007-05-11 A tilting alarm system for a machine having a vibratory roller

Country Status (4)

Country Link
EP (1) EP2021730A4 (en)
AU (1) AU2007250522B2 (en)
NZ (1) NZ572954A (en)
WO (1) WO2007131272A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103196428A (en) * 2011-04-04 2013-07-10 优必得节能技术(上海)有限公司 Detection device, rail train and rail locomotive for detecting motion state of moving object

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846781A (en) * 1973-01-10 1974-11-05 L Smith Slope indicator and roll-over warning indicator for earthmoving equipment
US3848750A (en) * 1973-02-09 1974-11-19 D Hoge Crane tip alarm
US4077132A (en) * 1977-02-22 1978-03-07 Keuffel & Esser Company Digital level indicator
DE3044485A1 (en) * 1980-11-26 1982-06-03 Losenhausen Maschinenbau AG, 4000 Düsseldorf SAFETY DEVICE ON CONSTRUCTION MACHINERY
US4682145A (en) * 1985-05-03 1987-07-21 Brawner Jr Clarence A Truck level sensing and indicating system
US4952908A (en) * 1988-06-20 1990-08-28 Navistar International Transportation Corp. Trailer stability monitor
WO1991000983A1 (en) * 1989-07-13 1991-01-24 Christopher Mark Baker Safety tilt alarm
US5532672A (en) * 1994-11-28 1996-07-02 Plazarin; James J. Vehicle level alarm
AU7141700A (en) * 1999-11-05 2001-05-10 Kenneth John Eaton Electromechanical warning device
DE102004038657A1 (en) * 2004-08-09 2006-02-23 Bomag Gmbh Device and method for determining an acceleration-independent inclination angle

Also Published As

Publication number Publication date
WO2007131272A1 (en) 2007-11-22
AU2007250522A1 (en) 2007-11-22
AU2007250522B2 (en) 2008-11-27
EP2021730A1 (en) 2009-02-11
EP2021730A4 (en) 2009-06-17

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