EP0115563A2 - Lame chasse-neige à volets rappelés par ressorts - Google Patents

Lame chasse-neige à volets rappelés par ressorts Download PDF

Info

Publication number
EP0115563A2
EP0115563A2 EP83106186A EP83106186A EP0115563A2 EP 0115563 A2 EP0115563 A2 EP 0115563A2 EP 83106186 A EP83106186 A EP 83106186A EP 83106186 A EP83106186 A EP 83106186A EP 0115563 A2 EP0115563 A2 EP 0115563A2
Authority
EP
European Patent Office
Prior art keywords
spring
snow plow
flap
axis
plow according
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
EP83106186A
Other languages
German (de)
English (en)
Other versions
EP0115563A3 (en
EP0115563B1 (fr
Inventor
Theodor Haering
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.)
Ing Alfred Schmidt GmbH
Original Assignee
Ing Alfred Schmidt GmbH
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 Ing Alfred Schmidt GmbH filed Critical Ing Alfred Schmidt GmbH
Priority to AT83106186T priority Critical patent/ATE30056T1/de
Priority to NO842513A priority patent/NO161982C/no
Priority to JP12764684A priority patent/JPS6073909A/ja
Publication of EP0115563A2 publication Critical patent/EP0115563A2/fr
Publication of EP0115563A3 publication Critical patent/EP0115563A3/de
Application granted granted Critical
Publication of EP0115563B1 publication Critical patent/EP0115563B1/fr
Expired 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
    • E01H5/06—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by non-driven elements, e.g. scraper blades, snow-plough blades, scoop blades
    • E01H5/061—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by non-driven elements, e.g. scraper blades, snow-plough blades, scoop blades by scraper blades
    • E01H5/062—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by non-driven elements, e.g. scraper blades, snow-plough blades, scoop blades by scraper blades by scraper blades displaceable for shock-absorbing purposes

Definitions

  • the invention relates to a snow plow with a coulter plate, on which a plurality of spring flaps with wear rails attached to them are articulated at the bottom by means of hinges, each held by at least one prestressed return spring in their working position.
  • the spring flaps are hinged close to each other on the coulter.
  • a torsion spring supported against the back of the coulter plate holds a spring flap in its working position.
  • the individual spring flaps can deflect counter-clockwise against the action of the return spring when they strike obstacles in the road surface.
  • the return spring is increasingly tensioned. If one takes into account that the return spring is already under considerable pretension in the normal working position of the spring flap, it is readily understandable that the return springs often break after a short period of operation due to the mostly jerky evasive movements of the spring flaps or their pretension is reduced.
  • the present invention has the object, the effect of the return springs in a spring valves - to improve snow plow, in particular to avoid an overload of the return springs and also the sub-section of the spring flaps. to reduce a practically insignificant value.
  • a particularly expedient embodiment provides that the return spring is formed by a plurality of plate springs accommodated in a housing, the housing being guided so as to be adjustable in a manner counteracting the compression of the plate springs.
  • the restoring force of the plate springs can be adjusted in a certain way over the entire swivel path of the spring flap.
  • the preload of the disc springs can be changed to better achieve this goal.
  • a particularly advantageous implementation of the present invention provides that the housing is mounted on supports which are articulated thereon and are pivotable on the rear side of the spring flap about a first axis, and that a plunger is also provided which is pivotably supported on the rear side of the spring flap and which acts on the disc springs, the first axis being less distant from the hinge axis than the second axis.
  • the housing can be connected to the rear of the coulter via a link connection;
  • a link connection Such a variant is particularly useful if the geometry of the two axes explained above cannot be realized.
  • the latter also enables the hinge axis for the connection of the spring flap to the coulter sheet to be shifted approximately into the plane of the coulter sheet, so that the undercut of the spring flaps can be reduced to a low value corresponding to the inclined position of the coulter sheet.
  • the spring flap snow plow shown in FIGS. 1 to 4 washes an upper coulter plate 1, which is connected to a clearing vehicle via a coupling device, and spring flaps 2 with a wear rail 13, which are pivotally fastened thereon. Coulter plate 1 and spring flap 2 are connected to one another via hinge 3.
  • two to four spring flaps are preferably provided on the lower edge of the coulter plate.
  • the structure of the hinges 3 corresponds to the known piano hinge, that is to say that tube sleeves 3a, 3b are seated on the hinge axis and are alternately welded to the hinge sheet 1 and the spring flaps 2.
  • a stop bar 16 limits the movement of the spring flaps 2 to the front. 1 and 2 show a tubular sleeve 3a with two flat bars 4a, 4b and the stop bar 16 is welded.
  • the two flat bars form a seat for the wear bar 13, which is screwed to the flat bar 4b, so that the wear bar can be easily replaced.
  • the bolts 7 in the shorter pedestals 5 penetrate lateral supports 9, which together with an upper cross member 10 form a yoke.
  • the return spring is realized by a plurality of disc springs 17 accommodated in the spring housing 12.
  • the plunger 11 presses over a pressure plate guided inside the housing 12. 18 onto the disc springs 17 and presses them together.
  • the required pretensioning of the return spring can be specified by a locking ring 19, which is located in an annular groove inserted into the housing.
  • the preload can still be varied by changing the length of the plunger 11.
  • the plunger 11 has an external thread on which the pressure plate 18 is attached and secured by means of a nut 20 with a lock nut 21.
  • the spring housing 12 is attached to the cross member 10 of the yoke.
  • the leadership of the spring housing 12 can also be solved differently.
  • Rollers 14 are mounted on the lateral supports 9 of the yoke and run in a U-shaped reinforcing rail 15.
  • the tubular sleeve 3b of the hinge 3 are connected to the coulter sheet 1, the tubular sleeves 3a to the spring flap.
  • FIG. A3 identifies the axis of the hinge 3.
  • the bolts 7 lie on the axis A7 and the axis of rotation of the bolt 8 is designated A8.
  • the axis A7 of the articulation of the supports 9 of the yoke of the hinge axis A3 is closer than the axis A8 of the articulation of the plunger 11.
  • the overall movement of the plunger 11 consequently corresponds to the translatory movement of the yoke plus the spring travel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Springs (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Soil Working Implements (AREA)
EP83106186A 1983-02-03 1983-06-24 Lame chasse-neige à volets rappelés par ressorts Expired EP0115563B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT83106186T ATE30056T1 (de) 1983-02-03 1983-06-24 Schneepflug mit federklappen.
NO842513A NO161982C (no) 1983-06-24 1984-06-21 Sneplog med fjaerklaffer.
JP12764684A JPS6073909A (ja) 1983-06-24 1984-06-22 ばねフラツプを有するスノ−プラウ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH60783 1983-02-03
CH607/83 1983-02-03

Publications (3)

Publication Number Publication Date
EP0115563A2 true EP0115563A2 (fr) 1984-08-15
EP0115563A3 EP0115563A3 (en) 1985-12-11
EP0115563B1 EP0115563B1 (fr) 1987-09-30

Family

ID=4190916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83106186A Expired EP0115563B1 (fr) 1983-02-03 1983-06-24 Lame chasse-neige à volets rappelés par ressorts

Country Status (3)

Country Link
EP (1) EP0115563B1 (fr)
AT (1) ATE30056T1 (fr)
DE (1) DE3373924D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0365436A1 (fr) * 1988-09-23 1990-04-25 Frink America, Inc. Assemblage chasse-neige réversible
WO1991009177A1 (fr) * 1989-12-11 1991-06-27 Schmidt Winterdienst- Und Kommunaltechnik Gmbh Chasse-neige
WO1994029529A1 (fr) * 1993-06-11 1994-12-22 Gebr. Zaugg Ag Chasse-neige

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8811708U1 (de) * 1988-09-15 1989-05-03 ESCHER Geräte und Maschinen-Vertriebsgesellschaft mbH, 8530 Neustadt Räumschild für einen Schneepflug
DE4441654C2 (de) * 1993-12-20 1996-02-08 Theo Haering Schneepflug
DE19854934C1 (de) * 1998-11-27 2000-08-31 Beilhack Systemtechnik Und Ver Schürfleistenhaltevorrichtung für Schneepflüge

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE964778C (de) * 1951-11-02 1957-05-29 Kurt Gasser Dipl Ing Schneepflug mit waagerecht geteilter Pflugschar
CH638007A5 (en) * 1979-02-07 1983-08-31 Boschung Marcel Ag Single-side snow plough

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0365436A1 (fr) * 1988-09-23 1990-04-25 Frink America, Inc. Assemblage chasse-neige réversible
WO1991009177A1 (fr) * 1989-12-11 1991-06-27 Schmidt Winterdienst- Und Kommunaltechnik Gmbh Chasse-neige
WO1994029529A1 (fr) * 1993-06-11 1994-12-22 Gebr. Zaugg Ag Chasse-neige

Also Published As

Publication number Publication date
EP0115563A3 (en) 1985-12-11
ATE30056T1 (de) 1987-10-15
EP0115563B1 (fr) 1987-09-30
DE3373924D1 (en) 1987-11-05

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