EP0386307B1 - Chasse-neige - Google Patents

Chasse-neige Download PDF

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Publication number
EP0386307B1
EP0386307B1 EP89113116A EP89113116A EP0386307B1 EP 0386307 B1 EP0386307 B1 EP 0386307B1 EP 89113116 A EP89113116 A EP 89113116A EP 89113116 A EP89113116 A EP 89113116A EP 0386307 B1 EP0386307 B1 EP 0386307B1
Authority
EP
European Patent Office
Prior art keywords
cable
motor
chassis
electric motor
mast
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.)
Expired - Lifetime
Application number
EP89113116A
Other languages
German (de)
English (en)
Other versions
EP0386307A1 (fr
Inventor
Georg Dr. Jur. Frohm
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.)
Rieger Roland
Original Assignee
Rieger Roland
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 Rieger Roland filed Critical Rieger Roland
Priority to AT89113116T priority Critical patent/ATE99014T1/de
Publication of EP0386307A1 publication Critical patent/EP0386307A1/fr
Application granted granted Critical
Publication of EP0386307B1 publication Critical patent/EP0386307B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
    • E01H5/04—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material

Definitions

  • the invention relates to a snow blower with a chassis, which has at least two lateral traction wheels, as well as on the front side a milling device and for driving it together an engine designed with a branching gear and a drive motor.
  • Snow blowers of the type mentioned and on which the invention is based are, for example, from a public publication, the catalog of the company "ARIENS” / Germany, motor devices for gardening and property maintenance GmbH, Westerberg 18, 3221 Winzenburg, and the associated "manual for the owner” PART No. 24546, printed in USA 9-82.
  • Such snow blowers are usually with a so-called "internal combustion engine”, ie. H. equipped with an internal combustion engine as a drive unit, as also shown in US-A-4 062 135.
  • internal combustion engine ie. H. equipped with an internal combustion engine as a drive unit, as also shown in US-A-4 062 135.
  • a further disadvantage is a high noise level with a subjectively unpleasant frequency despite the use of a silencer.
  • vibrations can be caused by the piston internal combustion engine, which can seriously disrupt the operation of the snow blower or necessitate an interruption thereof.
  • the user or operator of the internal combustion engine-driven snow blower presents further hazards as the exhaust gases are harmful to health. These are, among other things, carcinogenic.
  • the operator should also ensure that the machine is not overloaded when clearing snow.
  • the drive unit could be "stalled” and thereby damage the internal combustion engine.
  • a hand-held lawn trimmer is known from US-A-4,397,088.
  • This is a small, lightweight device for trimming the lawn as well as for sweeping snow in front of the front door.
  • the device has a handle for guiding, which can be dismantled or removed for transport.
  • this apparatus lacks the functionally essential elements of a snow blower, namely a traction chassis with traction wheels, there is no milling device on the front with tools for removing a snow crust from the ground, and there is a lack of a milling process indispensable means of establishing a defined ratio of cutting speed and feed when removing the material to be milled.
  • the invention has for its object to overcome the aforementioned difficulties and technical limits and to provide a snow blower with an improved and simplified drive unit, which operates particularly quietly or extremely quietly, is largely maintenance-free, even after prolonged downtimes causes no starting difficulties, uncomplicated in the Operation is and, in addition, with the smallest possible installation volume for integration with the rest of the machine concept of a snow blower, it has optimal conditions, does not produce any harmful exhaust gases, is inexpensive to procure and, last but not least, has the best possible power-to-weight ratio.
  • the engine noise with its unpleasant frequencies is avoided, also harmful exhaust gases or hot parts, and the starting difficulties, especially after longer downtimes, are easily overcome.
  • the electric motor has a much more favorable power-to-weight ratio and volume.
  • an electric motor is very advantageously suitable for the problem-free integration of the machine concept of a snow blower, be it with a new construction or also when converting an existing snow blower from the internal combustion engine drive to the electric motor drive.
  • Another advantage of an electric motor, particularly in the version as a squirrel-cage rotor, is its compatibility with short-term overload peaks.
  • motors in the category in question are internationally standardized as standard electric motors and, as a result, can be procured inexpensively practically anywhere in the world.
  • a snow blower equipped with an electric motor according to the invention surprisingly fulfills the above requirements for solving the task in a surprisingly happy and uncomplicated manner.
  • the energy supply is by a trailing cable dimensioned according to an engine power level between 10 and 15 KW within a reasonably limited range of action of the snow blower z. B. within a closed residential area or a hospital area or a hotel facility, if, according to the teaching of the invention, this cable is supplied via a cable mast erected on the chassis.
  • This has the advantage that a hindrance to the milling work in wet snow or a hazard or damage to the cable by the milling tool is avoided with certainty.
  • the electric motor provided as the drive unit can preferably be designed as a commercially available three-phase motor or pole-changing with at least two speed ranges.
  • Such a commercially available electric motor is advantageously robust and, at a uniform speed, it can withstand different torques or performance requirements up to overload peaks.
  • the cable mast can be tilted to the side via a flexible element in all possible different directions from the essentially originally vertical arrangement position and is thus firmly and yet flexibly connected to the chassis.
  • the flexible element may preferably be a strong coil spring.
  • An embodiment of the invention proposes that the cable mast consists of at least two parts which can be put together or telescoped, so that the length or height of the cable mast can be adapted to the particular circumstances on site.
  • the figure shows a snow blower (20) with a chassis (4).
  • This has two lateral traction wheels (8).
  • the chassis (4) has a milling device (9) on its front side. This is so familiar to a person skilled in the art that a detailed description of the function is unnecessary.
  • It essentially consists of a counter-rotating double milling screw, which feeds milled snow into the housing of a high-speed impeller, which ejects the snow to the side through a swiveling chute (15).
  • the operating linkage (12) is provided for guiding the snow blower (20) by an operator.
  • snow blowers of the type mentioned are usually equipped with a drive unit with a gasoline or diesel engine (16) according to the type shown in the figure and designated by reference number (10).
  • snow blowers are very often only used for clearing spatially limited distances, for example in the area of residential complexes, hotel complexes, hospitals, schools, parking lots and similar locations for clearing snow.
  • an electric motor (1) is provided for driving the snow blower (20).
  • the electric motor (1) as the drive unit of the snow blower (20) is considerably smaller in size and also more compact than the equally powerful internal combustion engine (16).
  • the electric motor (1) can be easily integrated and assembled with the chassis (4) and the branching gear of the snow blower (20).
  • a three-phase motor is preferably used for this purpose as the drive unit. This has particular advantages because it is robust, maintenance-free in operation, without being damaged, can be overloaded for a short time and is also internationally standardized. In addition, such an electric motor has - compared to the internal combustion engine of the same strength - a much more favorable power-to-weight ratio and a much cheaper, very advantageous price / performance ratio.
  • a three-phase drive is also associated with considerably lower operating costs because the electric motor manages with lower energy costs and also works in the area of considerably higher efficiencies compared to the efficiency and the energy costs of an internal combustion engine drive. He also works with a particularly quiet and uniform concentricity without vibrations.
  • a further embodiment of the snow blower (20) which is essential to the invention consists in the fact that it has a cable feed device on the chassis (4) with a cable mast (5); Via its upper, free end (6), the trailing cable (2) provided for the energy feed of the electric motor (1) is guided over a switching device (not shown) and arranged to be connectable to the electric motor (1).
  • the mast (5) prevents interference with the milling operation with great certainty because it prevents the cable from reaching the milling tool (9), being damaged in the process and possibly leading to short circuits.
  • the cable mast (5) is also of such significant importance because a short circuit in wet snow, possibly caused by salt to the electrolyte, could lead to the most serious accidents for the operator.
  • the cable mast holds the trailing cable (2) so high in height and thus from the snow blower (20) and its milling device (9) that such an accident or malfunction of the operation cannot occur.
  • the cable mast (5) advantageously has a flexible element (7) arranged between its base and the chassis. It is able to tilt or deflect in different directions (x, y) from the vertical position. This allows the cable mast (5) to avoid dangerously and automatically if, for example, the cable (2) experiences too high a draft or if the snow blower (20) has to drive under obstacles such as trees or parts of buildings.
  • a further advantageous embodiment provides that the cable mast (5) preferably consists of several parts (5a, 5b, 5c) which can be put together or plugged together and / or changed in length like a telescope.
  • the height of the cable mast (5) can thus be largely optimally adapted to the respective local and / or operational circumstances.
  • This switching device also has properly designed safeguards against long-term overloading of the device or short-circuit releases, etc.
  • the operational safety is further increased by the fact that the switching device is connected via an actuating member (18) to a release lever (19) on the guide rod (12) .
  • the weight and price ratio is similarly advantageous.
  • the invention therefore optimally fulfills the task set out at the beginning.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Soil Working Implements (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Centrifugal Separators (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicines Containing Plant Substances (AREA)

Claims (2)

  1. Fraiseuse à neige avec un châssis, qui présente au moins deux roues de traction latérales (18), de même qu'un système de fraise à la partie frontale, les deux entraînes par un mécanisme moteur formé par un moteur d'entraînement et un moteur de commande, caractérisé par le fait que:
    a) le moteur est un moteur électrique à deux vitesses avec interversion du sens de rotation qui pour être alimenté en énergie est relié à un câble électrique par un interrupteur.
    b) au châssis (4) de la fraiseuse à neige (20) se trouve la potence téléscopique variable dans la longueur (5) qui sert à guider le câble et au bout superieur de laquelle (6) le câble est mené par une patte flexible et.
    c) la potence (5) peut être inclinée de la verticale sur le côté dans toutes sortes de direction et est reliée au châssis (4) par un ressort spirale comme élément flexible (7).
  2. Fraiseuse à neige d'après la demande 1 caractérisée par le fait que l'interrupteur du moteur électrique (1) fonctionne grâce à une tringle de commande (18) avec un levier de manoeuvre (19) au guidon, la conception étant de telle sorte que le moteur (1) electrique ne reçoit plus de courant quand on lâche le levier de manoeuvre (19).
EP89113116A 1989-03-07 1989-07-18 Chasse-neige Expired - Lifetime EP0386307B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89113116T ATE99014T1 (de) 1989-03-07 1989-07-18 Schneefraese.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8902741U DE8902741U1 (de) 1989-03-07 1989-03-07 Schneefräse
DE8902741U 1989-03-07

Publications (2)

Publication Number Publication Date
EP0386307A1 EP0386307A1 (fr) 1990-09-12
EP0386307B1 true EP0386307B1 (fr) 1993-12-22

Family

ID=6836784

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89113116A Expired - Lifetime EP0386307B1 (fr) 1989-03-07 1989-07-18 Chasse-neige

Country Status (5)

Country Link
EP (1) EP0386307B1 (fr)
AT (1) ATE99014T1 (fr)
DE (2) DE8902741U1 (fr)
FI (1) FI93134C (fr)
NO (1) NO176065C (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9405500U1 (de) * 1994-04-05 1995-08-03 Baumer, Ludwig, Dipl.-Ing. (FH), 96047 Bamberg Vorrichtung zum Anschließen einer beweglichen elektrischen Maschine an das häusliche elektrische Stromnetz
DE4442299A1 (de) * 1994-11-28 1996-05-30 Matthias Hahn Kabelhalter und -straffer für elektrische Gartengeräte
GB2451852A (en) * 2007-08-15 2009-02-18 Peter Bristow Power tool cable safety device.
CN104972883A (zh) * 2015-06-11 2015-10-14 浙江亚特电器有限公司 一种双步扫雪机
CN107611903B (zh) * 2017-09-14 2020-01-10 国网山东省电力公司莱芜供电公司 一种高空线缆除雪装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB268504A (en) * 1926-02-11 1927-04-07 Ransomes Sims & Jefferies Ltd Improvements in and connected with electrically driven lawn mowers
US4062135A (en) * 1976-10-04 1977-12-13 Deere & Company Safe operation control for a snowblower
US4397088A (en) * 1981-02-09 1983-08-09 The Toro Company Power equipment unit with split handle

Also Published As

Publication number Publication date
EP0386307A1 (fr) 1990-09-12
FI93134C (fi) 1995-02-27
NO901056D0 (no) 1990-03-06
DE58906502D1 (de) 1994-02-03
NO176065C (no) 1995-01-25
NO176065B (no) 1994-10-17
DE8902741U1 (de) 1989-05-03
FI93134B (fi) 1994-11-15
FI901138A0 (fi) 1990-03-06
ATE99014T1 (de) 1994-01-15
NO901056L (no) 1990-09-10

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