EP1049834A1 - Dispositif de securite pour les elements de commande d'un rouleau de compactage du sol a commande manuelle - Google Patents

Dispositif de securite pour les elements de commande d'un rouleau de compactage du sol a commande manuelle

Info

Publication number
EP1049834A1
EP1049834A1 EP99903613A EP99903613A EP1049834A1 EP 1049834 A1 EP1049834 A1 EP 1049834A1 EP 99903613 A EP99903613 A EP 99903613A EP 99903613 A EP99903613 A EP 99903613A EP 1049834 A1 EP1049834 A1 EP 1049834A1
Authority
EP
European Patent Office
Prior art keywords
coupling
roller
lever
safety
safety arrangement
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
EP99903613A
Other languages
German (de)
English (en)
Other versions
EP1049834B1 (fr
Inventor
Hermann Schennach
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.)
Wacker Construction Equipment AG
Original Assignee
Wacker Werke GmbH and Co KG
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 Wacker Werke GmbH and Co KG filed Critical Wacker Werke GmbH and Co KG
Publication of EP1049834A1 publication Critical patent/EP1049834A1/fr
Application granted granted Critical
Publication of EP1049834B1 publication Critical patent/EP1049834B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • E01C19/262—Rollers therefor; Such rollers usable also for compacting soil self-propelled or fitted to road vehicles pedestrian-controlled, e.g. with safety arrangements for operator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20012—Multiple controlled elements
    • Y10T74/20018—Transmission control
    • Y10T74/20049—Transmission controlled by flexible cable
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20012—Multiple controlled elements
    • Y10T74/20018—Transmission control
    • Y10T74/2014—Manually operated selector [e.g., remotely controlled device, lever, push button, rotary dial, etc.]

Definitions

  • the invention relates to a safety arrangement for a hand-held soil compaction roller.
  • the operator runs behind the roller and controls it via a handle attached to a drawbar, which carries a driving lever for adjusting the driving speed and direction.
  • the roller is usually moved in a forward and backward direction by a hydraulic unit, i.e. towards the operator.
  • a safety arrangement is used in such soil compacting rollers to switch off the advance of the roller when the roller is reversing, ie. i.e., in the direction of the operator leading the roller and the operator can no longer move backwards or cannot avoid the roller.
  • This problem can occur, for example, when the operator runs the roller backwards against an obstacle, panics and thereby forgets to stop the roller or move it in the opposite direction.
  • the safety arrangements have an actuating part which is displaceable between an operating position and a dangerous position and which can be moved from the operating position into the dangerous position when touched by the operator and thereby brings the roller to a standstill.
  • a safety arrangement is known from OS-DE 41 29 915 AI, in which the driving speed and direction can be adjusted via a driving lever.
  • the roller is guided by an additional, lever-like vertically pivotable handle, which can be swung down from a swiveled basic position into a working position in which its free end is still clearly above the horizontal through its swivel axis.
  • the drive lever By swiveling down the handle, the drive lever, which is otherwise held in the zero position by spring action, is positively fixed in the desired deflected position.
  • the handle is swiveled up, which occurs automatically when the handle touches an obstacle, for example, the positive connection is released, as a result of which the spring-loaded lever moves to the zero position and brings the roller to a standstill. Moving the roller in the opposite direction is possible by further actuation of the drive lever.
  • the invention has for its object to provide a safety arrangement for a hand-held soil compacting roller, which enables a reliable stopping of the roller even when the operator holds the drive lever convulsively, and on the other hand also allows the roller to move away from the operator when the Safety arrangement has been triggered by driving the roller against the operator.
  • a second coupling is provided between a driving lever and an actuating element connected to a control line.
  • the first coupling can be released by moving a safety control element from an operating position into a dangerous position.
  • the second coupling also remains, but can only transmit forces of the drive lever to the actuating element when the drive lever is moved in the forward direction.
  • the second coupling preferably also has a positive coupling, in which the adjusting element carries a driver against which a stop provided on the driving lever can be struck. This ensures that only forces can be transmitted in one direction, namely the forward direction of the roller.
  • Figure 1 is a perspective view of a handle for a soil compaction roller with the safety arrangement according to the invention in the operating position;
  • FIG. 2 shows the handle from FIG. 1 with the safety arrangement in the dangerous position
  • Figure 3 is a front view of the safety arrangement according to the invention corresponding to the position of Figure 1;
  • Figure 4 is a front view of the safety arrangement according to the position of Figure 2;
  • Figure 5 is a side view of the handle with the safety arrangement according to the invention and a driving lever in the forward position;
  • Figure 6 is a side view of Figure 1 with the drive lever in the reverse position
  • FIG. 7 is a side view of FIG. 2, with the drive lever in the reverse position and the safety control element in the dangerous position;
  • Figure 8 is a side view of the handle with driving lever in the forward position and safety control in the dangerous position.
  • a hand bracket 2 is fastened to a holding plate 1 fastened to a drawbar of a soil compacting roller (not shown), via which the soil compacting roller can be guided in a conventional manner.
  • a drive lever 3 is pivotably arranged on an axis of rotation 4 in the curvature of the hand bracket 2.
  • the drive lever 3 carries an extension 5, which is designed so that it can be embraced by the operator at the same time when the operator holds the hand bracket 2.
  • the driving lever 3 can be pivoted in the forward or backward direction, which is indicated by arrows V and R.
  • the movement of the driving lever 3 can be transmitted to an actuating element 7 via a claw coupling 6, which can be seen in particular in FIG. 3 and serves as the first coupling.
  • the actuating element 7 is also arranged pivotably on the axis of rotation 4 and is pivotably coupled at a lever end 8 to the end of an actuation 9 serving as a control line.
  • An actuation 9 (not shown) for the roller can be actuated as a Bowden cable.
  • the drive is usually a hydraulic pump, the pump capacity of which can be adjusted by means of the actuation 9.
  • a control linkage can also be used for the actuation 9, for example.
  • the adjusting element 7 is provided on one side with the claw coupling 6 and is acted upon on the other side by a spring 10 which is supported against a shoulder 11 on the axis of rotation 4.
  • a safety actuator is also arranged, which consists essentially of a baffle 12, a plunger 13 and a guide 14.
  • the impact pot 12 is firmly connected to the plunger 13 and is held in an operating position by a spring 15 supported against the guide 14, in which the control by the safety control element is not - 6 -
  • the plunger 13 is, however, axially movably received in the guide 14, so that the plunger 13 with the impact pot 12 can be displaced from the operating position against the action of the spring 15 into a dangerous position if the impact pot 12, for. B. drives against the operator's body or another obstacle.
  • the actuating element 7 is acted upon by a spring device (not shown) in such a way that when it is not loaded by the drive lever 3 it pivots automatically into the zero position, which corresponds to a standstill of the roller. Therefore, when the dog clutch 6 is opened, the actuating element 7 pivots automatically into its zero position and stops the movement of the roller via the actuation 9.
  • the open claw coupling 6 is also shown in FIG. 4, from which it can also be clearly seen that the tappet 13 lifts the actuating element 7 from the drive lever 3.
  • a positive coupling serving as a second coupling engages, which is formed by a pin 17 fastened to the driving lever 3 and a driver 18 formed on the adjusting element 7.
  • the pin 17 extending in the axial direction of the axis of rotation 4 is so long that it can reach the driver 18 even when the actuating element 7 is disengaged by the plunger 13.
  • the actuator 9 is forwarded to the drive of the roller, whereby the roller moves in the forward direction away from the pinched operator.
  • Figure 5 shows the drive lever 3 in the forward position and the safety control element with the baffle 12 in the operating position. Accordingly, Figure 6 shows the drive lever 3 in the reverse position. The position of the drive lever 3 is transmitted to the actuating element 7 and the actuation 9 via the respectively closed claw coupling 6, so that reliable control of the roller drive is possible.
  • FIG. 7 shows a state in which the roller was initially in reverse travel by means of the drive lever 3 in the reverse position and then an obstacle was determined via the impact pot 12.
  • the plunger 13 has been pushed against the claw coupling 6 and has released it. Accordingly, the spring-biased actuating element 7 has pivoted into the zero position and has stopped the drive via the actuation 9. In the state shown in FIG. 7, the machine is at a standstill.
  • the baffle pot 12 can return to its original operating position, whereupon the plunger 13 is moved out of the dog clutch 6 and the dog clutch 6 can close again. The original operating state is thus restored.
  • the safety arrangement can of course also be used on other machines that are operated in pedestrian mode in addition to rollers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Soil Working Implements (AREA)

Abstract

L'invention concerne un dispositif de sécurité destiné à un rouleau de compactage du sol à commande manuelle, comportant un accouplement à liaison de forme (6) entre un levier de manoeuvre (3) et un élément de réglage (7) couplé à un organe de commande (9) pour l'entraînement du rouleau. Dans une situation dangereuse, une pièce de réglage de sécurité (12, 13) passe entre l'élément de réglage (7) et le levier de manoeuvre (3) et désolidarise l'accouplement à liaison de forme (6), après quoi l'élément de réglage (7) pivote en position neutre et arrête la machine. Lors du pivotement en avant du levier de manoeuvre (3), une instruction de commande correspondante pour la marche avant peut être transmise, par l'intermédiaire d'un deuxième accouplement à liaison de forme (17, 18), à l'organe d'entraînement du rouleau.
EP99903613A 1998-01-20 1999-01-08 Dispositif de securite pour les elements de commande d'un rouleau de compactage du sol a commande manuelle Expired - Lifetime EP1049834B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19802007A DE19802007C1 (de) 1998-01-20 1998-01-20 Sicherheitsanordnung für die Bedienungselemente einer handgeführten Bodenverdichtungswalze
DE19802007 1998-01-20
PCT/EP1999/000079 WO1999037862A1 (fr) 1998-01-20 1999-01-08 Dispositif de securite pour les elements de commande d'un rouleau de compactage du sol a commande manuelle

Publications (2)

Publication Number Publication Date
EP1049834A1 true EP1049834A1 (fr) 2000-11-08
EP1049834B1 EP1049834B1 (fr) 2003-04-02

Family

ID=7855158

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99903613A Expired - Lifetime EP1049834B1 (fr) 1998-01-20 1999-01-08 Dispositif de securite pour les elements de commande d'un rouleau de compactage du sol a commande manuelle

Country Status (6)

Country Link
US (1) US6382383B1 (fr)
EP (1) EP1049834B1 (fr)
JP (1) JP3980830B2 (fr)
DE (2) DE19802007C1 (fr)
ES (1) ES2193682T3 (fr)
WO (1) WO1999037862A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004113618A1 (fr) * 2003-06-18 2004-12-29 Mikasa Sangyo Co., Ltd. Dispositif pour le deplacement en arriere d'un rouleau vibratoire
US7194929B2 (en) * 2003-12-01 2007-03-27 Jungheinrich Aktiengesellschaft Pole for hand pallet truck
GB2411565B (en) * 2004-03-03 2007-02-21 Grey Technology Ltd Trimming apparatus
DE102004042058A1 (de) * 2004-08-31 2006-03-02 Bomag Gmbh Sicherheitsvorrichtung für eine Vibrationsplatte
SE527879C2 (sv) * 2004-11-30 2006-07-04 Dynapac Compaction Equip Ab Tryckbygel
US20100124476A1 (en) * 2008-11-14 2010-05-20 Darryl Berlinger Cylinder cart having a retention hook
US9334612B2 (en) 2013-10-04 2016-05-10 Wacker Neuson Production Americas Llc Control lever assembly for walk-behind compaction roller
ES2744632T3 (es) * 2014-10-06 2020-02-25 Wacker Neuson Production Americas Llc Conjunto de palanca de control para rodillo de compactación con conductor a pie
JP6371239B2 (ja) * 2015-02-27 2018-08-08 株式会社日立建機カミーノ ハンドガイドローラ

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3147818A (en) * 1962-06-08 1964-09-08 Rotary Hoes Ltd Reverse-drive safety device for a walktype tractor or cultivator
DE3215391A1 (de) * 1982-04-24 1983-10-27 Wacker-Werke Gmbh & Co Kg, 8077 Reichertshofen Walze zur bodenverdichtung mit hydrostatischem fahrantrieb
DE8402033U1 (de) * 1984-01-25 1984-04-26 Dynapac Maskin AB, 17122 Solna Selbstfahrende handgeführte Maschine
DE3432083A1 (de) * 1984-08-31 1986-03-06 Behringwerke Ag, 3550 Marburg Pasteurisierte, isoagglutininfreie faktor viii-praeparation und verfahren zu ihrer herstellung
JPS62199821U (fr) * 1986-06-10 1987-12-19
DE4129915A1 (de) * 1991-04-03 1992-10-08 Weber Maschinentechnik Gmbh Sicherheitsanordnung fuer die bedienungselemente einer handgefuehrten, zur verdichtung des untergrundes vorgesehenen kraftbetriebenen walze
EP0593063B1 (fr) * 1992-10-14 1997-02-19 MEFLEX TELECONTROL GMBH & CO. Système de commande pour une machine automobile guidé à la main

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9937862A1 *

Also Published As

Publication number Publication date
JP3980830B2 (ja) 2007-09-26
EP1049834B1 (fr) 2003-04-02
DE59904842D1 (de) 2003-05-08
JP2002501135A (ja) 2002-01-15
WO1999037862A1 (fr) 1999-07-29
DE19802007C1 (de) 1999-11-11
US6382383B1 (en) 2002-05-07
ES2193682T3 (es) 2003-11-01

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