US3587182A - Adjustable control mechanism for movably mounted blade of snow-plough - Google Patents

Adjustable control mechanism for movably mounted blade of snow-plough Download PDF

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Publication number
US3587182A
US3587182A US795106*A US3587182DA US3587182A US 3587182 A US3587182 A US 3587182A US 3587182D A US3587182D A US 3587182DA US 3587182 A US3587182 A US 3587182A
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United States
Prior art keywords
blade
snow
supporting member
plough
control mechanism
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
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US795106*A
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English (en)
Inventor
Walter Hirt
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Ing Alfred Schmidt GmbH
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Individual
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Filing date
Publication date
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Publication of US3587182A publication Critical patent/US3587182A/en
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    • 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
    • E01H5/063—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 snow-plough blades tiltable for shock-absorbing purposes

Definitions

  • Crowder Attorney-Nolte and Nolte ABSTRACT In a snow-plough with a blade which is swingably arranged on a movable supporting member controlled by a lifting device on a carrier vehicle, the supporting member is provided with a vertically adjustable stop skid which prevents the blade from approaching the road surface over a predetermined distance, thus preventing the blade from being blocked when encountering an obstacle.
  • the present invention relates generally to a protection mechanism for the blade of a snowplow.
  • the present invention relates to control member for a snowplough of the type which is attachable to a carrier vehicle and has a blade which is movably attached by means of at least one jointed arm and a' spring element to a vertically displaceable support member controlled by a lifting device arranged on a carrier vehicle.
  • the snowploughs are linked to the carrier vehicle by means of a lifting device which is adapted to force the blade against the surface of the road or to lift the same when normal transportation is required.
  • the object of the present invention is, therefore, to create a control mechanism for the snowplough which insures that the supporting member is lowered only so far in the direction toward the surface of the roadway that the blade can always be swung upwardly when encountering an obstacle.
  • the above object is attained in that the blade support member is provided with a stop member which prevents the supporting member from approaching the surface of the roadway over a predetermined distance.
  • the stop member can be in the form of a simple support roller which is adjustably secured to and at a distance from the blade support member. Since the stop member in the course of a normal operation of the snowplough is out of contact with the road surface, it can be also made as a simple support skid.
  • the support roller or skid is adjustably mounted in a holding jacket and its position with regard to the snowplough is set in the following manner:
  • the snowplough carrying vehicle is disposed on an even horizontal roadway, the blade is placed into the lowest position thereof with respect to the blade supporting member and the stop member is then vertically adjusted so as to be at a certain distance from the roadway.
  • the distance usually corresponds to the height of the outstanding portion of the wearing strip which is attached to the lower edge of the blade.
  • the blade with a new, nonwomout wearing strip can be swung up with regard to the blade supporting member only as high as the height of the outstanding wearing strip portion, so that the remaining swingable range thereof is unaffected, and the blade has always'the possibility to skid over the obstacles.
  • This feature is particularly advantageous in the case when snow is cleared away from roadways having a surface which is undulated in the direction of travel.
  • FIG. 1 shows a side elevation of a conventional snowplough in a working position
  • FIG. 2 is the snowplough of FIG. 1 after encountering an obstacle
  • FIG. 3 is a snowplough having the control mechanism according to the present invention.
  • the prior art snowplough as shown in FIG. 1 comprises blade 1 which is swingably attached by means of pivotally mounted arms 2 and 3 to support member 4 which, in turn, is linked by swingable control arms 5 and 6 to a carrier vehicle 16.
  • Lifting device 7 is arranged in a known manner, between the lower control arm 6 and the vehicle to control the lifting of the supporting member 4.
  • the supporting member is provided with rod 11 having nose 10 projecting between two limit stops 9a and 9b integral with the sidewall of blade 1.
  • the blade is forced downwardly by means of spring 17 which acts to draw the nose 10 into abutment with upper limit stop 9a, thus defining the rest position of the blade with regard to supporting member 4, as shown in FIG. 1.
  • Supporting member 4, control arms 5 and 6 and lifting device 7 constitute the control mechanism for the removal blade to control vertical position of the latter with regard to the carrier'vehicle and at the same time, to the surface of the roadway.
  • FIG. 2 illustrates the snowplough of FIG. 1 in a position resulting after the encounter of the lower edge of the blade with obstacle 8 on the road. Since the lower jointed arm at the rest position of the blade is inclined upwardly in the direction of the advance of the plough the inclination angle of the arm 2 will be increased when the blade is pressed against the obstacle, and the blade is accordingly swung up until the lower edge of nose l0 abuts against the lower limit stop 9b. However, if the blade supporting member is displaced towards the surface of the road to an extent such that the lifting device is in the lowest limit position thereof and the blade is swung up into its upper limit position (FIG. 2), there is no possibility for the arms to lift the blade any further in order to pass over an obstacle. The lifting action of arms 2 and 3 is, therefore, blocked due to the close approach of the blade supporting member to the roadway.
  • the blade supporting member 4 is provided with a vertically ad'- justable stop member in the form of skid plate 12 integral with support column 13 which is adjustably mounted in holding collar 14 firmly connected with supporting member 4.
  • skid plate 12 At the rest position of the blade, skid plate 12 is set to be at a certain distance from the road surface, preferably at a distance corresponding with the height of the outstanding portion of wearing strip 15 attached to the lower edge of blade I, as indicated in full lines in FIG. 3.
  • skid plate 12 prevents arms 2 and 3 from being prematurely blocked due to the close approach of supporting member 4 towards the roadway and that blade 1 is always able to skid over the obstacle.
  • a carrier vehicle has a blade support coupled to a front part of the vehicle for upward and downward swinging of the support, and biassed upwardly to space the support from the ground, the support having at least one scraper blade, linkage for said blade coupling the same to the support for upward and downward swinging of the blade, and limit means providing first and second limit positions of the blade, the first limit position being relatively low and forwardly spaced from the support, the second limit position being higher and closer to the support than said first limit position, and the blade being biassed toward the second limit position, for snow-ploughing but being swingable toward the first limit position to avoid an obstacle encountered on the ground, the improvement which comprises: an additional limit member, secured to said support and having at least a part thereof extending downwardly therefrom to a point below the the ground.
  • a snowplow according to claim 1 including means for adjusting the downward extension of the stop means.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Handcart (AREA)
US795106*A 1968-02-29 1969-01-29 Adjustable control mechanism for movably mounted blade of snow-plough Expired - Lifetime US3587182A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESC042041 1968-02-29

Publications (1)

Publication Number Publication Date
US3587182A true US3587182A (en) 1971-06-28

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ID=7436551

Family Applications (1)

Application Number Title Priority Date Filing Date
US795106*A Expired - Lifetime US3587182A (en) 1968-02-29 1969-01-29 Adjustable control mechanism for movably mounted blade of snow-plough

Country Status (5)

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US (1) US3587182A (fr)
AT (1) AT292773B (fr)
CH (1) CH466350A (fr)
FR (1) FR1561812A (fr)
SE (1) SE339489B (fr)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4843744A (en) * 1986-12-16 1989-07-04 Ing. Alfred Schmidt Gmbh Snowplow
US5079866A (en) * 1990-04-23 1992-01-14 Cives Corporation Plow assembly with flexible moldboard
US5125174A (en) * 1991-04-15 1992-06-30 Douglas Dynamics, Inc. Removable snowflow with a pivotable lift stand
USRE35700E (en) * 1991-04-15 1997-12-30 Douglas Dynamics, L.L.C. Removable snowplow assembly with pivotable lift stand
US5950336A (en) * 1997-08-14 1999-09-14 Liebl; Kenneth A. Removable snowplow system for an all-terrain vehicle
US6178669B1 (en) 1999-02-03 2001-01-30 Blizzard Corporation Plow hitch assembly for vehicles
US6219943B1 (en) * 1998-08-04 2001-04-24 Cives Corporation Resilient mounting arrangement for moldboard
US6354025B1 (en) 1998-08-04 2002-03-12 Cives Corporation Adjustable mounting arrangement for moldboard
US6393737B2 (en) 1999-02-03 2002-05-28 Blizzard Corporation Plow support assembly
US20060000122A1 (en) * 2004-07-02 2006-01-05 Micozzi Albert M Plow protector
US20070084088A1 (en) * 2005-10-13 2007-04-19 Shepherd John D Plow
US20070128013A1 (en) * 2005-12-01 2007-06-07 Grant Hanson Apparatus protecting vehicle with bucket when bucket strikes fixed object
US8732988B2 (en) 2006-11-30 2014-05-27 Glenridge, Inc. Implement with linkage assembly and work assembly wherein work assembly has dynamic skid shoe and a scraping edge
US8881433B2 (en) 2006-11-30 2014-11-11 Glenridge, Inc. Implement attaching to a forward motion-producing machine for elevating an edge encountering an immovable object
US9085860B2 (en) 2012-09-04 2015-07-21 Universal Truck Equipment, Inc. Wing plow post
US9752293B2 (en) 2012-09-04 2017-09-05 Universal Truck Equipment, Inc. Wing plow post
US20170328021A1 (en) * 2016-05-13 2017-11-16 Thomas A. Miller Actuatable plow blade ground support method and apparatus
US10053826B1 (en) 2014-12-12 2018-08-21 Alamo Group Inc. Wing plow apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT396600B (de) * 1988-10-24 1993-10-25 Kahlbacher Anton Schneepflug

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4843744A (en) * 1986-12-16 1989-07-04 Ing. Alfred Schmidt Gmbh Snowplow
US5079866A (en) * 1990-04-23 1992-01-14 Cives Corporation Plow assembly with flexible moldboard
US5125174A (en) * 1991-04-15 1992-06-30 Douglas Dynamics, Inc. Removable snowflow with a pivotable lift stand
USRE35700E (en) * 1991-04-15 1997-12-30 Douglas Dynamics, L.L.C. Removable snowplow assembly with pivotable lift stand
US5950336A (en) * 1997-08-14 1999-09-14 Liebl; Kenneth A. Removable snowplow system for an all-terrain vehicle
US6219943B1 (en) * 1998-08-04 2001-04-24 Cives Corporation Resilient mounting arrangement for moldboard
US6354025B1 (en) 1998-08-04 2002-03-12 Cives Corporation Adjustable mounting arrangement for moldboard
US6536141B2 (en) 1998-08-04 2003-03-25 Cives Corporation Adjustable mounting arrangement for moldboard
US6178669B1 (en) 1999-02-03 2001-01-30 Blizzard Corporation Plow hitch assembly for vehicles
US6276076B1 (en) 1999-02-03 2001-08-21 Blizzard Corporation Plow hitch assembly for vehicles
US6393737B2 (en) 1999-02-03 2002-05-28 Blizzard Corporation Plow support assembly
US6615513B2 (en) 1999-02-03 2003-09-09 Blizzard Corporation Draw latch assembly for mounting a plow to a vehicle
US7143531B2 (en) * 2004-07-02 2006-12-05 Micozzi Albert M Plow protector
WO2006014264A2 (fr) * 2004-07-02 2006-02-09 Micozzi Albert M Dispositif de protection de chasse-neige
US20060000122A1 (en) * 2004-07-02 2006-01-05 Micozzi Albert M Plow protector
WO2006014264A3 (fr) * 2004-07-02 2006-12-07 Micozzi Albert M Dispositif de protection de chasse-neige
US20070084088A1 (en) * 2005-10-13 2007-04-19 Shepherd John D Plow
US7661210B2 (en) * 2005-10-13 2010-02-16 Shepherd John D Plow
US20070128013A1 (en) * 2005-12-01 2007-06-07 Grant Hanson Apparatus protecting vehicle with bucket when bucket strikes fixed object
US20090093934A1 (en) * 2005-12-01 2009-04-09 Grant Hanson Apparatus Protecting Vehicle With Bucket When Bucket Strikes Fixed Object
US8046939B2 (en) 2005-12-01 2011-11-01 Grant Hanson Apparatus protecting vehicle with accessory when scraping edge of accessory strikes fixed object
US8732988B2 (en) 2006-11-30 2014-05-27 Glenridge, Inc. Implement with linkage assembly and work assembly wherein work assembly has dynamic skid shoe and a scraping edge
US8881433B2 (en) 2006-11-30 2014-11-11 Glenridge, Inc. Implement attaching to a forward motion-producing machine for elevating an edge encountering an immovable object
US9080297B2 (en) 2006-11-30 2015-07-14 Glenridge, Inc. Implement with linkage assembly and work assembly wherein work assembly has dynamic skid shoe and a scraping edge
US9085860B2 (en) 2012-09-04 2015-07-21 Universal Truck Equipment, Inc. Wing plow post
US9752293B2 (en) 2012-09-04 2017-09-05 Universal Truck Equipment, Inc. Wing plow post
US10053826B1 (en) 2014-12-12 2018-08-21 Alamo Group Inc. Wing plow apparatus
US10196790B1 (en) 2014-12-12 2019-02-05 Alamo Group Inc. Wing plow apparatus
US10480141B1 (en) 2014-12-12 2019-11-19 Alamo Group Inc. Wing plow apparatus
US20170328021A1 (en) * 2016-05-13 2017-11-16 Thomas A. Miller Actuatable plow blade ground support method and apparatus
US10519615B2 (en) * 2016-05-13 2019-12-31 Thomas A. Miller Actuatable plow blade ground support method and apparatus

Also Published As

Publication number Publication date
DE1708664A1 (de) 1971-09-16
AT292773B (de) 1971-09-10
CH466350A (de) 1968-12-15
FR1561812A (fr) 1969-03-28
SE339489B (fr) 1971-10-11

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