A hand-guided ground compacting machine, such as, in particular, a vibration tamper, a vibratory roller or a vibratory plate, comprising a driving engine mounted on a machine frame, a ground compaction device driven by the driving engine, and a guide bar. Features of the present invention reside in
A hand-guided ground compacting machine, such as, in particular, a vibration tamper, a vibratory roller or a vibratory plate, comprising a driving engine mounted on a machine frame, a ground compaction device driven by the driving engine, and a guide bar. Features of the present invention reside in that the driving engine is a liquid gas powered driving engine and that the ground compacting machine comprises at least one storage container for liquid gas which is replaceably disposed in a storage container holding means on the hand-guided ground compacting machine.
대표청구항▼
1. A hand-guided ground compacting machine, comprising: a driving engine which is mounted on a machine frame;a ground compaction device driven by the driving engine; anda guide bar,wherein the driving engine is a gas powered driving engine, that the hand-guided ground compacting machine comprises at
1. A hand-guided ground compacting machine, comprising: a driving engine which is mounted on a machine frame;a ground compaction device driven by the driving engine; anda guide bar,wherein the driving engine is a gas powered driving engine, that the hand-guided ground compacting machine comprises at least two storage containers for liquified petroleum gas (LPG) connected to the driving engine via a piping system, and that a storage container holder is provided for accommodating and storing the at least two storage containers on the hand-guided ground compacting machine with the piping system comprising an attachment device configured for parallel connection of the at least two storage containers to the piping system, with a protective cover comprising a hood being located above the at least two storage containers, the protective cover having a pair of protective tubes disposed on an interior surface of the protective cover which protrude in a direction toward the at least two storage containers when the protective cover is located above the at least two storage containers, and with the at least two storage containers being replaceably disposed in said storage container holder and the piping system including a quick coupling system operating to permit selective fluid coupling and de-coupling of the at least two storage containers with the driving engine without the use of tools. 2. The hand-guided ground compacting machine according to claim 1, wherein the storage container holder comprises at least one of the following features: a) comprises a holding device which is adapted for releasable fixation of the at least two storage containers in the storage container holder;b) comprises a lateral guard which at least partially shields at least one of the two storage containers in its side region from the environment;c) is vibration-cushioned relatively to vibration induced in the machine frame. 3. The hand-guided ground compacting machine according to claim 1, wherein each of said at least two storage containers comprises at least one of the following features: a) said storage container has a maximum filling capacity for liquified petroleum gas (LPG) ranging from 200 ml to 20000 ml; and/orb) said storage container is a cartridge. 4. The hand-guided ground compacting machine according to claim 1, wherein said protective cover has a locking means for arresting said protective cover in a closed position. 5. The hand-guided ground compacting machine according to claim 1, wherein said protective cover has a holding device for fixation of the at least two storage containers in said storage container holder. 6. The hand-guided ground compacting machine according to claim 5, wherein the holding device comprises a resilient pressure applying element which is configured such that said resilient pressure applying element exerts an effective contact pressure on said at least two storage containers in said storage container holder in a closing direction of the protective cover. 7. The hand-guided ground compacting machine according to claim 5, wherein the holding device comprises a retaining and protective sleeve, which in a holding state of the retaining and protective sleeve, comes to bear, at least partially with an end marginal region of the retaining and protective sleeve, against the at least two storage containers. 8. The hand-guided ground compaction machine according to claim 1, wherein in the piping system there is provided, between the at least two storage containers and said driving engine, an evaporator adapted to ensure complete volatilization of the liquified petroleum gas (LPG). 9. The hand-guided ground compacting machine according to claim 8, said evaporator comprises at least one of the following features: a) has a heat input port to which heat is supplied by way of cooling air warmed by the driving engine;b) has a heat input port, to which heat is supplied by way of an oil circulation fed by engine oil;c) is articulated on the ground compacting machine by means of a holder, said holder being vibration-cushioned relatively to vibration induced in the machine frame. 10. The hand-guided ground compacting machine according to claim 1, wherein an external oil cooler is provided for the reduction of the engine oil temperature during operation. 11. The hand-guided ground compacting machine according to claim 1, wherein said hand-guided ground compacting machine comprises at least one of the following features: a) there is provided a tilt switching system comprising a tilt sensor and/or an oil pressure sensor; and/orb) a gas sensor is provided which is adapted to determine a gas concentration in the external environment of said hand-guided ground compacting machine, and an emergency shutdown is provided which switches off said driving engine when said gas sensor detects a predetermined concentration level in the external environment of the hand-guided ground compacting machine. 12. The hand-guided ground compacting machine according to claim 1, wherein an automatic shutdown system is provided which is configured such that said automatic shutdown system permits gas to flow through the evaporator only when there is an adequate negative pressure in the suction pipe of said driving engine, said automatic shutdown system particularly being configured such that it triggers, in a pressure governor, blocking and unblocking of the flow of fuel from the at least one storage container to the driving engine. 13. The hand-guided ground compacting machine according to claim 1, wherein said hand-guided ground compacting machine is a vibration tamper, a vibratory roller or a vibratory plate. 14. The hand-guided ground compacting machine according to claim 2, wherein said cartridge comprises one of a screw valve type cartridge or a bayonet valve type cartridge. 15. The hand-guided ground compacting machine according to claim 1, wherein each of said at least two storage containers holder comprises at least one of the following features: a) said storage container has a maximum filling capacity for liquified petroleum gas (LPG) ranging from 400 ml to 1000 ml; and/orb) said storage container is a cartridge. 16. The hand-guided ground compacting machine according to claim 15, wherein said cartridge comprises one of a screw valve type cartridge or a bayonet valve type cartridge.
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이 특허에 인용된 특허 (12)
Stayner, Richard, Compactor machine having vibration damping means.
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