EP0386307A1 - Chasse-neige - Google Patents

Chasse-neige Download PDF

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Publication number
EP0386307A1
EP0386307A1 EP89113116A EP89113116A EP0386307A1 EP 0386307 A1 EP0386307 A1 EP 0386307A1 EP 89113116 A EP89113116 A EP 89113116A EP 89113116 A EP89113116 A EP 89113116A EP 0386307 A1 EP0386307 A1 EP 0386307A1
Authority
EP
European Patent Office
Prior art keywords
cable
snow blower
electric motor
mast
chassis
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
EP89113116A
Other languages
German (de)
English (en)
Other versions
EP0386307B1 (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 a milling device on the front side and an engine designed with a branching gear and a drive motor for driving them together.
  • 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.
  • the disadvantage here is that, for. B. the exhaust and its adjacent parts become very hot, which is why the device operator must avoid touching these elements when operating the device according to the instructions in the above operating instructions.
  • a further disadvantage is a high noise level with a subjectively unpleasant frequency despite the use of a silencer.
  • the piston internal combustion engine can cause vibrations which severely 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 dangers as the exhaust gases which are hazardous to health.
  • 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.
  • 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, causes no starting problems even after long downtimes, and is uncomplicated in the Operation and, furthermore, with the smallest possible space and installation volume for integration with the rest of the machine concept, has particularly good structural conditions, does not produce and emit harmful exhaust gases, is inexpensive to procure and, last but not least, has the best possible power-to-weight ratio.
  • the problem is solved with the invention in a snow blower of the type mentioned in that an electric motor is arranged to drive it and this has an electric trailing cable for feeding in energy, the current-carrying conductors are connected to the electric motor via a switching device, and that a cable feed device with a cable mast is arranged on the chassis of the snow blower, over whose upper, free end the trailing cable is guided to the electric motor.
  • a handheld snow blower powered by an electric motor avoids the high noise level of an internal combustion engine, which is subjectively perceived as extremely unpleasant due to its vibration frequency, it does not cause any starting difficulties, even after long periods of inactivity, is almost maintenance-free and always ready for use without a problem.
  • the electric motor does not produce any harmful emissions and it has no hot parts. Compared to an internal combustion engine of the same power level, the electric motor has a much more favorable power-to-weight ratio and a much smaller 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. After all, 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.
  • This advantageously creates an accident hazard for the operator, e.g. B. excluded by short circuit in wet snow, with absolute certainty.
  • the arrangement and design of a cable mast as cable carrier on the chassis of the snow blower proposed by the invention is of essential importance for the invention in the case of its electric drive.
  • 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, 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. This avoids difficulties that could arise, for example, when driving under the snow blower from obstacles such as trees or parts of buildings etc.
  • 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). In many cases, it is advisable to cover these wheels (8) with snow chains in order to ensure that the snow blower (20) advances vigorously even on icy ground.
  • 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.
  • 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). A major reason for this is the striving for an operation without the dependency on an external energy supply and consequently with a quasi-unlimited range of action and thus the possibility of clearing longer distances.
  • snow blowers are very often only used to clear spatially limited routes, such as in the area of residential complexes, hotel complexes, hospitals, schools, parking lots and similar locations for clearing snow. An unlimited radius of action is then not required.
  • the aforementioned disadvantages of a device operated with an internal combustion engine are particularly disadvantageous in such applications. These are above all the noise pollution of the residents, schoolchildren or the sick as well as the exhaust gas emissions, as well as the requirement to have to leave the work to a trained operator.
  • 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.
  • 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 significantly 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. Also, with the electric motor provided according to the invention, there are no starting difficulties at any time and also at very low temperatures, so that the snow blower according to the invention is ready for use at any time.
  • 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 with a cable mast (5) on the chassis (4); 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 malfunction of the milling operation with absolute certainty, because it prevents the cable from reaching the milling tool (9), being damaged in the process and possibly leading to short circuits. Preventing this disadvantageous possibility by 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.
  • 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.
  • 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 linkage (12).
  • the interaction of these parts is designed so that the operator closes the circuit by depressing the release lever (19) and thus starts the electric motor (1).
  • the circuit is automatically interrupted and the motor is de-energized and brought to a standstill.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Soil Working Implements (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Centrifugal Separators (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (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)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
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 1989-03-07
DE8902741U DE8902741U1 (fr) 1989-03-07 1989-03-07

Publications (2)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2451852A (en) * 2007-08-15 2009-02-18 Peter Bristow Power tool cable safety device.
CN107611903A (zh) * 2017-09-14 2018-01-19 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
EP3192926A4 (fr) * 2015-06-11 2018-04-25 Zhejiang Yat Electrical Appliance Co., Ltd. Déneigeuse à deux étapes

Families Citing this family (2)

* 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 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

Citations (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

Patent Citations (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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2451852A (en) * 2007-08-15 2009-02-18 Peter Bristow Power tool cable safety device.
EP3192926A4 (fr) * 2015-06-11 2018-04-25 Zhejiang Yat Electrical Appliance Co., Ltd. Déneigeuse à deux étapes
CN107611903A (zh) * 2017-09-14 2018-01-19 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
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

Also Published As

Publication number Publication date
FI93134B (fi) 1994-11-15
NO901056L (no) 1990-09-10
DE8902741U1 (fr) 1989-05-03
EP0386307B1 (fr) 1993-12-22
FI901138A0 (fi) 1990-03-06
NO176065C (no) 1995-01-25
ATE99014T1 (de) 1994-01-15
FI93134C (fi) 1995-02-27
NO176065B (no) 1994-10-17
NO901056D0 (no) 1990-03-06
DE58906502D1 (de) 1994-02-03

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