MEYER PRODUCTS, LLC.
`
`EXHIBIT 1005
`
`U.S. Patent No. 3,605,906 to Coates
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`

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`Sept. 20, 1971
`Sept. 20, 1971
`
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`F, COA-:Es
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`3,805,905
`3,605,906
`
`snow PLOW wmx Mews T0 FACILITATE MOUNTING
`sNow PLow WITH 'MEANS To FACILITATE MOUNTING
`
`Filed March 28. 1969
`Filed March 28. 1969
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`3,605,906
`United States Patent C ”
`United States Patent Office
`1C@
`Patented Sept. 20, 1971
`Patented Sept. 20, 1971
`
`l
`1
`
`3,605,906
`3,605,906
`SNOWPLOW WITH MEANS T0 FACILITATE
`SN OWPLOW WITH MEANS T0 FACILITATE
`MOUNTING
`MOUNTING
`Frank Coates, Corydon, Iowa, assignor to Coates
`Frank Coates, Corydon, Iowa, assignor to Coates
`Manufacturing Co., Corydou, Iowa
`Manufacturing Co., Corydon, Iowa
`Filed Mar. 28, 1969, Ser. No. 811,305
`Filed Mar. 28, 1969, Ser. No. 811,305
`Int. Cl. E01h 5/06; E021’ 3/76
`Int. Cl. E01h 5 /06,` E021.’ 3/ 76
`U.S. Cl. 172—272
`6 Claims
`U.S. Cl. 172-272
`6 Claims
`
`
`ABSTRACT OF THE DISCLOSURE
`ABSTRACT 0F THE DISCLOSURE
`A snowplow for attachment to the forward end of a
`A snowplow for attachment to the forward end of a
`vehicle such as a truck or the like. The snowplow includes
`vehicle such as a truck or the like. The snowplow includes
`a pair of spaced apart push arms which are secured at
`a pair of spaced apart push arms which are secured at
`their rearward ends to the vehicle frame and which ex-
`their rearward ends to the vehicle frame and which ex
`tend forwardly therefrom. A cross beam means is secured
`tend forwardly therefrom. A cross beam means is secured
`-to and extends between the forward ends of the push
`to and extends between the ‘forward ends of the push
`arms and has a hollow tube provided thereon adapted to
`arms and has a hollow tube provided thereon adapted to
`rotatably receive a pivot shaft. The pivot shaft extends
`rotatably receive a pivot shaft. The pivot shaft extends
`rearwardly from the blade portion of the snowplow and
`rearwardly from the blade portion of the snowplow and
`is removably received by the tube to effect a pivotal or
`is removably received by the tube to effect a pivotal or
`rotational connection between the cross frame means and
`rotational connection between the cross frame means and
`the blade structure. A locking means is provided for de-
`the blade structure. A locking means is provided for de
`tachably maintaining the pivot shaft in the tube. A lift
`tachably maintaining the pivot shaft in the tube. A lift
`arm assembly is connected to the cross beam means and
`arm assembly is connected to the cross beam means and
`the blade structure for raising and lowering the blade
`the blade structure for raising and lowering the blade
`structure with respect to the cross beam means. The pivot
`structure with respect to the cross beam means. The pivot
`shaft tube is mounted on a cross beam member which is
`shaft tube is mounted on a cross beam member which is
`rotatable about a horizontal axis and means is provided
`rotatable about a horizontal axis and means is provided
`for yieldably preventing the rotational movement of the
`for yieldably preventing the rotational movement of the
`cross beam member during the periods when the blade
`cross beam member during the periods when the blade
`structure is removed from the cross beam means to facil-
`structure is removed from the cross beam means to facil~
`itate the subsequent attachment of the blade structure
`itate the subsequent attachment of the blade structure
`to the cross beam means.
`to the cross beam means.
`
`
`Conventional snowplows which are designed for use
``Conventional snowplows which are designed for use
`with trucks or the like have several shortcomings. The
`with trucks or the like have several shortcomings. The
`conventional snowplows are difficult to attach to the ve-
`conventional snowplows are difficult to attach to the ve
`hicle and are complicated in design due to the many pivots
`hicle and are complicated in design due to the many pivots
`and pins utilized thereon. Further, the conventional snow-
`and pins utilized thereon. Further, the conventional snow
`plows do not automatically follow the contour of the road
`plows do not automatically follow the contour of the road
`which results in an ineflieient snow removal operation
`which results in an inefficient snow removal operation
`as well as causing damage to the structure at times. Addi-
`as well as causing damage to the structure at times. Addi
`tionally, these snowplows are not mounted on the vehicle
`tionally, these snowplows are not mounted on the vehicle
`in such a manner so as to provide a durable connection
`in such a manner so as to provide a durable connection
`therebetween.
`therebetween.
`Therefore, it is a principal object of this invention to
`Therefore, it is a principal object of this invention to
`provide a snowplow for use with a truck or the like.
`provide a snowplow for use with a truck or the like.
`A further object of this invention is to provide a snow-
`A further object of this invention is to provide a snow
`plow which is quickly attached to a vehicle.
`plow which is quickly attached to a vehicle.
`A further object of this invention is to provide a vehicle
`A further object of this invention is to provide a vehicle
`snowplow which automatically follows the contour of the
`snowplow which automatically follows the contour of the
`road.
`road.
`A further object of this invention is to provide a vehicle
`A further object of this invention is to provide a vehicle
`snowplow wherein the blade structure is pivoted about
`snowplow wherein the blade structure is pivoted about
`a longitudinal horizontal axis with respect to the vehicle.
`a longitudinal horizontal axis with respect to the vehicle.
`A further object of this invention is to provide a vehicle
`A further object of this invention is to provide a vehicle
`snowplow which is of rigid construction.
`snowplow which is of rigid construction.
`A further object of this invention is to provide a vehicle
`A further object of this invention is to provide a vehicle
`snowplow wherein a pair of push arms are secured to
`snowplow wherein a pair of push arms are secured to
`the vehicle frame in such a manner to spread the stress
`the vehicle frame in such a manner to spread the stress
`imposed therein over a large area.
`imposed therein over a large area.
`A further object of this invention is to provide a ve-
`A further object of this invention is to provide a ve
`hicle snowplow including a pivotal cross beam and means
`hicle snowplow including a pivotal cross beam and means
`for yieldably maintaining the cross beam in a prede
`for yieldably maintaining the cross beam in a prede-
`
`2
`2
`termined position during periods that
`the blade struc-
`termined position during periods that the blade struc
`ture is not attached to the vehicle.
`ture is not attached to the vehicle.
`A further object of this invention is to provide a vehicle
`A further object of this invention is to provide a vehicle
`snowplow which is economical of manufacture, durable
`snowplow which is economical of manufacture, durable
`in use and refined in appearance.
`in use and refined in appearance.
`These and other objects will be apparent to those skilled
`These and other objects will be apparent to those skilled
`in the art.
`in the art.
`This invention consists in the construction, arrange-
`This invention consists in the construction, arrange
`ments, and combination of the various parts of the device,
`ments, and combination of the various parts of the device,
`whereby the objects contemplated are attained as herein-
`whereby the objects contemplated are attained as herein
`after more fully set forth, specifically pointed out in the
`after more fully set forth, specifically pointed out in the
`claims, and illustrated in the accompanying drawings in
`claims, and illustrated in the accompanying drawings in
`Which:
`which:
`FIG.
`1 is a partial exploded front perspective view of
`FIG. l is a partial exploded front perspective view of
`the snowplow of this invention;
`the snowplow of this invention;
`FIG. 2 is an enlarged View as seen along lines 2—2 of
`FIG. 2 is an enlarged View as seen along lines 2-2 of
`FIG. 1;
`FIG. 1;
`FIG. 3 is an enlarged fragmentary sectional view as
`FIG. 3 is an enlarged fragmentary sectional view as
`seen along lines 3—3 of FIG. 1;
`seen along lines 3-3 of FIG. l;
`FIG. 4 is an enlarged sectional view as seen along lines
`FIG. 4 is an enlarged sectional view as seen along lines
`4——4 of FIG. 3;
`4-4 of FIG. 3;
`FIG. 5 is a rear view of the locking means utilized in
`FIG. 5 is a rear view of the locking means utilized in
`this invention, the locking means being illustrated in an
`this invention, the locking means being illustrated in an
`unlocked position; and
`unlocked position; and
`FIG. 6 is a view similar to FIG. 5 except that the
`FIG. 6 is a view similar to FIG. 5 except that the
`locking means is illustrated in a locked position.
`locking means is illustrated in a locked position.
`The snowplow of this invention is generally designated
`The snowplow of this invention is generally designated
`by the reference numeral while the reference nu-
`by the reference numeral while the reference nu
`merals 12 and 14 generally refer to a pair of spaced apart
`merals 12 and 14 generally refer to a pair of spaced apart
`longitudinal frame members commonly found on vehicles
`longitudinal frame members commonly found on vehicles
`such as trucks or the like. The vehicle has not been shown
`such as trucks or the like. The vehicle has not been shown
`for purposes of clarity. The numeral 16 refers to a frame
`for purposes of clarity. The numeral 16 refers to a frame
`member extending between the forward end of the frame
`member extending between the forward end of the frame
`members 12 and 14 and it is to the frame member 16
`members 12 and 14 and it is to the frame member 16
`that the vehicle front bumper is commonly attached. In
`that the vehicle front bumper is commonly attached. In
`some instances, it may or may not be desirable to remove
`some instances, it may or may not be desirable to remove
`the front bumper from the vehicle while in other instances
`the front bumper from the vehicle while in other instances
`it may be desirable to attach the frame angles 18 and 19
`it may be desirable to attach the frame angles 18 and 19
`to the front bumper.
`to the front bumper.
`A push arm bracket 20 is secured to frame member 12
`A push arm bracket 20 is secured to frame member 12
`by means of bolts 22 and 24 extending through plates 26
`by means of bolts 22 and 24 extending through plates 26
`and 28 respectively and through the frame member 12.
`and 28 respectively and through the frame member 12.
`A plate 30 is secured to the plates 26 and 28 and extends
`A plate 30 is secured to the plates 26 and 28 and extends
`therebetween as best illustrated in FIG. 2. A push arm
`therebetween as best illustrated in FIG. 2. A push arm
`32 is secured to plate 30 by means of bolt 34 extending
`32 is secured to plate 30 by means of bolt 34 extending
`therethrough as also illustrated in FIG. 2. A push arm
`therethrough as also illustrated in FIG. 2. A push arm
`36 is secured to the forward end of push arms 32 by
`36 is secured to the forward end of push arms 32 by
`welding or the like and extends forwardly and downwardly
`welding or the like and extends forwardly and downwardly
`therefrom in a manner illustrated in FIG. 1. A push arm
`therefrom in a manner illustrated in FIG. 1. A push arm
`bracket corresponding to bracket 20 would be secured
`bracket corresponding to bracket 20 would be secured
`to frame member 14 while a push arm corresponding to
`to frame member 14 while a push arm corresponding to
`push arm 32 would be secured to the push arm bracket
`push arm 32 would be secured to the push arm bracket
`of frame member 14. The numeral 36’ refers to a push
`of frame member 14. The numeral 36’ refers to a push
`arm corresponding to push arm 36.
`arm corresponding to push arm 36.
`The forward end of push arm 36 is secured to a side
`The forward end of push arm 36 is secured to a side
`plate 38 by a bolt means 40 while a side plate 38’ is
`plate 38 by a bolt means 40 While a side plate 38’ is
`secured to the forward end of push arm 36’ by a bolt
`secured to the forward end of push arm 36’ by a bolt
`means 40’. Supports 42 and 42’ are secured to side plates
`means 40'. Supports 42 and 42’ are secured to side plates
`38 and 38’. respectively by any convenient means such as
`38 and 38'. respectively by any convenient means such as
`by bolts or the like and extend upwardly therefrom as
`by bolts or the like and extend upwardly therefrom as
`illustrated in FIG. 1. Beam 44 is secured to the upper
`illustrated in FIG. 1. Beam 44 is secured to the upper
`ends of supports 42 and 42’ by any convenient means such
`ends of supports 42 and 42' by any convenient means such
`as welding or the like and extends horizontally there
`as welding or the like and extends horizontally there-
`between. Lift arm 46 is pivotally connected at its rear-
`between. Lift arm 46 is pivotally connected at its rear
`ward end to beam 44 at 48 and extends forwardly and
`ward end to beam 44 at 48 and extends forwardly and
`downwardly therefrom. A sheave 50 is rotatably mounted
`downwardly therefrom. A sheave 50 is rotatably mounted
`on the forward end of the lift arm 46 and is adapted to
`on the forward end of the lift arm 46 and is adapted to
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`20
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`25
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`30
`30
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`35
`35
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`40
`40
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`45
`45
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`50
`50
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`55
`55
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`60
`60
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`65
`65
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`3,605,906
`3,605,906
`3
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`accommodate a cable or chain extending therearound.
`accommodate a cable or chain extending therearound.
`ing or the like. Coil spring 116 embraces pin 108 between
`ing or the like. Coil spring 116 embraces pin 108 between
`Beam 52 is secured to supports 42 and 42’ by welding or
`Beam 52 is secured to supports 42 and 42’ by welding or
`angle 106 and washer 114 and normally urges pin 108
`angle 106 and washer 114 and normally urges pin 108
`the like and extends therebetween at a position below
`the like and extends therebetween at a position below
`inwardly towards tube 92 or to the right as viewed in
`inwardly towards tube 92 or to the right as viewed in
`beam 44. A hydraulic cylinder 54 is pivotally connected
`beam 44. A hydraulic cylinder 54 is pivotally connected
`FIG. 3. A slide 118 is secuerd to washer 114 -by welding
`FIG. 3. A slide 118 is secuerd to washer 114 by welding
`or the like and it can also be seen in FIGS. 5 and 6 that
`at its lower end to beam 52 at 56 and is pivotally con-
`at its lower end to beam 52 at 56 and is pivotally con
`or the like and it can also be seen in FIGS. 5 and 6 that
`nected at its piston rod end to the lift arm 46 at 58. The
`the pin 108 is also welded to the slide 118. Slide 118 is
`nected at its piston rod end to the lift arm 46 at 58. The
`the pin 108 is also welded to the slide 118. Slide 118 is
`frame angles 18 and 20 are secured to the rearward
`provided with a semi-circular notch 120 formed in one
`frame angles 18 and 20 are secured to the rearward
`provided with a semi-circular notch 120 formed in one
`end thereof as illustrated in FIGS. 5 and 6-. Slide 118 is
`sides of the supports 42 and 42’ respectively and would
`sides of the supports 42 and 42’ respectively and would
`end thereof as illustrated in FIGS. 5 and 6.. Slide 118 is
`be secured to the frame members 12 and 14 respectively
`be secured to the frame members 12 and 14 respectively
`slidably mounted between a pair of guides 122 and 124
`slidably mounted between a pair of guides 122 and 124
`or would be secured to the frame member 16 or to the
`or would be secured to the frame member 1'6 or to the
`welded to back 68. When head portion 110` is pivoted so
`welded to back 68. When head portion 110‘ is pivoted so
`front bumper by any convenient means such as bolts or
`front bumper by any convenient means such as bolts or
`as to be parallel with the longitudinal axis of pin 108
`as to be parallel with the longitudinal axis of pin 108
`the like.
`the like.
`(FIG. 5) pin 108 and slide 118 is moved to the left away
`(FIG. 5) pin 108 and slide 118 is moved to the left away
`The numeral 60 refers to a cross beam which is rotat-
`The numeral 60 refers to a cross beam which is rotat
`from tube 92. When head portion 110l is pivoted to the
`from tube 92. When head portion 110' is pivoted to the
`ably connected to the side plates 38 and 38’ and extends
`ably connected to the side plates 38 and 38’ and extends
`position seen in FIG. 6, spring 116 urges pin 108 and slide
`position seen in FIG. 6, spring 116 urges pin 108 and slide
`therebetween. Cross beam 60 includes a top 62, bottom
`118 to the right towards tube 92 as viewed in FIG. 6.
`therebetween. Cross beam 60 includes a top 62, bottom
`118 to the right towards tube 92 as viewed in FIG. 6.
`64, front 66 and back 68'. The cross beam 60 is formed
`64, front 66 and back 68'. The cross beam 60 is formed
`Notch 120 in slide 118 is adapted to extend into the groove
`Notch 120 in slide 118 is adapted to extend into the groove
`of steel plates welded together so that the interior of the
`of steel plates welded together so that the interior of the
`102 in pivot shaft 98 when pivot shaft 98 is received by
`102 in pivot shaft 98 when pivot shaft 98 is received by
`beam 60 is hollow. The bottom plate forming bottom 64
`beam 60 is hollow. The bottom plate forming bottom 64
`tube 92 to selectively lock the blade structure to the cross
`tube 92 to selectively lock the blade structure to the cross
`has a length less than the plate forming top 62 so as to
`has a length less than the plate forming top 62 so as to
`beam 60 while still permitting the blade structure 94 to
`beam 60 while still permitting the blade structure 94 to
`provide an open area in the bottom adjacent the opposite
`provide an open area in the bottom adjacent the opposite
`rotate about the axis of pivot shaft 98 in tube 92. When
`rotate about the axis of pivot shaft 98 in tube 92. When
`ends thereof. As seen in FIG. 3, a plate 70* is welded to
`ends thereof. As seen in FIG. 3, a plate 70l is welded to
`head portion 110 is moved to the position illustrated in
`head portion 110 is moved to the position illustrated in
`and extends -between front 66 and back 68. Bottom 64
`and extends between front 66 and back 68. Bottom 64
`FIG. 3 and in FIG. 5, the pivot shaft 98 may be removed
`FIG. 3 and in FIG. 5, the pivot shaft 98 may be removed
`from the tube 92.
`is open outwardly of the plate 70. The structure at the
`is open outwardly of the plate 70. The structure at the
`from the tube 92.
`opposite end of beam 60 is identical to that seen in the
`opposite end of beam 60 is identical to that seen in the
`The normal method of operation is as follows. Ordi-
`The normal method of operation is as follows. Ordi
`right hand portion of FIG. 3 and also seen in FIG. 4.
`right hand portion of FIG. 3 and also seen in FIG. 4.
`narily, the front end of the vehicle would -be raised up to
`narily, the front end of the vehicle would -be raised up to
`Plate 72 is welded to one end of beam 60 as illustrated in
`Plate 72 is welded to one end of beam 60 as illustrated in
`facilitate the removal of the front wheels thereof so that
`facilitate the removal of the front wheels thereof so that
`FIGS. 3 and 4 and has an opening 74 extending there-
`FIGS. 3 and 4 and has an opening 74 extending there
`the push arm brackets may be conveniently secured to
`the push arm brackets may be conveniently secured to
`through which is provided with a bushing 76 mounted
`through which is provided with a bushing 76 mounted
`the frame members. The push arm 32 would normally be
`the frame members. The push arm 32 would normally be
`therein. As seen in FIG. 4, a bolt 78 extends through
`therein. As seen in FIG. 4, a bolt 78 extends through
`connected to the push arm bracket 20 prior to the bracket
`connected to the push arm bracket 20 prior to the bracket
`opening 80 in side plate 38’ and through the bushing 74.
`opening 80 in side plate 38' and through the bushing 74.
`20 being secured to the frame member. Likewise, the push
`20 being secured to the frame member. Likewise, the push
`Bolt 78 is maintained therein by a nut 82 threadably
`Bolt 78 is maintained therein by a nut 82 threadably
`arm bracket would also be secured to the frame member
`arm bracket would also be secured to the frame member
`mounted thereon and having a washer element 84 mounted
`mounted thereon and having a washer element 84 mounted
`14. Initially, the push arms 36 and 36’ would not ordi-
`14. Initially, the push arms 36 and 36’ would not ordi
`thereon. Nut 84 may be tightened by extending a wrench
`thereon. Nut 84 may be tightened by extending a wrench
`narily be connected to the push arms 32 until after the
`narily be connected to the push arms 32 until after the
`upwardly through the opening formed at one end of the
`upwardly through the opening formed at one end of the
`push arm bracket has been secured to the frame mem-
`push arm bracket has been secured to the frame mem
`bottom 64. As seen in FIG. 4, plate 72 is provided with
`bottom 64. As seen in FIG. 4, plate 72 is provided with
`bers. Supports 42. and 42’
`together with the structure
`bers. Supports 42 and 42’ together with the structure
`an annular groove 86 formed therein having a resilient
`an annular groove 86 formed therein having a resilient
`secured thereto would then be secured to the truck bumper
`secured thereto would then be secured to the truck bumper
`O-ring 88 mounted therein and extending outwardly there-
`O-ring 88 mounted therein and extending outwardly there
`or the like by means of the frame angles 18 and 19. Push
`or the like by means of the frame angles 18 and 19. Push
`from. The tightening of nut 82 on bolt 78 causes the O'-
`from. The tightening of nut 82 on bolt 78 causes the O'
`arms 36 would then be secured to the push arm 32 while
`arms 36 would then be secured to the push arm 32 while
`ring 88 to be compressed between the outside surface of
`ring 8-8 to be compressed between the outside surface of
`the push arm 36 would be secured to the push arm posi
`the push arm 36 would be secured to the push arm posi-
`plate 72 and the inside surface of side plate 38’. The en-
`plate 72 and the inside surface of side plate 38'. The en
`tioned rearwardly thereof. The front wheels of the vehicle
`tioned rearwardly thereof. The front wheels of the vehicle
`gagement of the O-ring 88 and the inside surface of side
`gagement of the O-ring 88 and the inside surface of side
`would then be replaced. The structure seen in the left
`would then be replaced. The structure seen in the left
`plate 38’ yieldably resists the rotational movement of the
`plate 38' yieldably resists the rotational movement of the
`hand side of FIG. 1 would ordinarily be left on the vehi-
`hand side of FIG. l would ordinarily be left on the vehi
`cross beam 60 with respect to the side plate 38 to main-
`cross beam 60 with respect to the side plate 38 to main
`cle with only the blade structure 94» and its associated
`cle with only the blade structure 94» and its associated
`tain the cross beam 60 in position when the «blade struc-
`tain the cross beam 60 in position when the blade struc
`structure being disconnected during periods of non use.
`structure being disconnected during periods of non use.
`ture has been detached therefrom. A bolt 90 extends
`ture has been detached therefrom. A bolt 90 extends
`When blade structure 94 is disconnected from the vehi-
`When blade structure 94 is disconnected from the vehi
`through side plate 38 and into the other end of cross
`through side plate 38 and into the other end of cross
`cle, a support block or the like would ordinarily be placed
`cle, a support block or the like would ordinarily be placed
`beam 60 and it should be understood that an O-ring is
`beam 60 and it should be understood that an O-ring is
`beneath frame means 96 to prevent the blade structure
`beneath frame means 96 to prevent the blade structure
`positioned between side plate 38 and the end of cross
`positioned between side plate 38 and the end of cross
`from tipping rearwardly. The blade structure 94 is con-
`from tipping rearwardly. The blade structure 94 is con
`beam 60 which would function identically to the O-ring
`beam 60 which would function identically to the O-ring
`nected to the vehicle by simply driving the vehicle for-
`nected to the vehicle by simply driving the vehicle for
`88. A tube 92 extends through cross beam 60 and the
`88. A tube 92 extends through cross beam 60 and the
`wardly so that the pivot shaft 98 is received by the tube
`wardly so that the pivot shaft 98 is received by the tube
`axis thereof is transversed to the longitudinal axis of the
`axis thereof is transversed to the longitudinal axis of the
`92. When pivot shaft 98 has been completely extended
`cross beam 60.
`92. When pivot shaft 98 has been completely extended
`cross beam 60.
`through tube 92, locking means 104 is moved to the posi
`through tube 92, locking means 104 is moved to the posi-
`The numeral 94 generally refers to a blade structure
`The numeral 94 generally refers to a blade structure
`tion of FIG. 6 so that longitudinal movement of the pivot
`tion of FIG. 6 so that longitudinal movement of the pivot
`having a rearwardly extending frame means 96. A pivot
`having a rearwardly extending frame means 96. A pivot
`shaft 98 with respect to the cross beam 60 is eliminated.
`shaft 98 with respect to the cross beam 60 is eliminated.
`shaft 98 is secured to frame means 96 and extends rear-
`shaft 98 is secured to frame means 96 and extends rear
`A suitable chain or the like would then be extended from
`A suitable chain or the like would then be extended from
`wardly therefrom as illustrated in FIG. 1. Pivot shaft 98
`wardly therefrom as illustrated in FIG. l. Pivot shaft 98
`the blade structure 94 through the sheave 50‘ so that the
`the blade structure 94 through the sheave 50‘ so that the
`is provided with a tapered portion 100 at its rearward end
`is provided with a tapered portion 100 at its rearward end
`blade structure may be raised or lowered with respect to
`blade structure may be raised or lowered with respect to
`and is provided with an annular groove 102 formed there-
`and is provided with an annular groove 102 formed there
`the vehicle. The apparatus used to raise and lower the
`the vehicle. The apparatus used to raise and lower the
`in forwardly of the rearward end thereof. Pivot shaft 98
`in forwardly of the rearward end thereof. Pivot shaft 98
`blade structure does not form a part of this invention.
`blade structure does not form a part of this invention.
`is adapted to be received by the tube 92 in the manner
`is adapted to be received by the tube 92 in the manner
`When the blade structure is being used, the fact that the
`When the blade structure is being used, the fact that the
`illustrated in FIG. 3 so that the groove 102 would be
`illustrated in FIG. 3 so that the groove 102 would be
`blade structure can rotate or pivot about pivot shaft 98
`blade structure can rotate or pivot about pivot shaft 98
`positioned rearwardly of back 68 of cross beam 60‘. The
`positioned rearwardly of back 68 of cross beam
`The
`insures that the blade will automatically follow the con-
`insures that the blade will automatically follow the con
`tapered portion 100 aids in the pivot shaft 98 being re-
`tapered portion 100 aids in the pivot shaft `98 being re
`tour of the road to insure an efñcient snow removal op
`tour of the road to insure an eflicient snow removal op-
`ceived by the tube 92.
`ceived by the tube 92.
`eration as well as preventing damage to the associated
`eration as well as preventing damage to the associated
`A locking means is provided on the back side of the
`A locking means is provided on the back side of the
`structure. The design of the push arm brackets insures
`structure. The design of the push arm brackets insures
`cross beam 60 and is generally referred to by the ref-
`cross beam 60 and is generally referred to by the ref
`that stress will be distributed to the frame members over
`that stress will be distributed to the frame members over
`erence numeral 104. Angle 106 is welded to back 68
`erence numeral 104. Angle 106 is welded to back 68
`a large area to prevent damage to the equipment.
`a large area to prevent damage to the equipment.
`laterally of tube 92 and has a pin 108 slidably extending
`laterally of tube 92 and has a pin 108 slidably extending
`When it is desired to disconnect the blade structure
`When it is desired to disconnect the blade structure
`therethrough as illustrated in FIGS. 3, 5 and 6. A U-
`therethrough as illustrated in FIGS. 3, 5 and 6. A U
`from the vehicle,
`it
`is simply necessary to move the
`from the vehicle, it is simply necessary to move the
`shaped head portion 110 is pivotally secured to the outer
`shaped head portion 110 is pivotally secured to the outer
`locking means to the position of FIG. 5. A support block
`locking means to the position of FIG. 5. A support block
`end of pin 108 by a pin element 112 extending there-
`or the like should be placed beneath frame means 96 to
`end of pin 108 by a pin element 112 extending there
`or the like should be placed beneath frame means 96 to
`through. Head portion 110 is pivotally movable from the
`prevent rearward tipping thereof. The vehicle is then
`through. Head portion 110 is pivotally movable from the
`prevent rearward tipping thereof. The vehicle is then
`position illustrated in FIG. 6 to the position illustrated
`moved reanwardly so that pivot shaft 98 is withdrawn
`position illustrated in FIG. 6 to the position illustrated
`moved rearwardly so that pivot shaft »98 is withdrawn
`in FIG. 5 and vice versa. Washer 114 is mounted on pin
`in FIG. 5 and vice versa. Washer 114 is mounted on pin
`from tube 92. The frictional engagement of the O-rings
`from tube 92. The frictional engagement of the O-rings
`108 inwardly of angle 106 and is secured thereto by weld-
`108 inwardly of angle 106 and is secured thereto by weld
`with the side plates 38 and 38’ prevents the cross beam
`with the side plates 38 and 38’ prevents the cross beam
`
`40
`40
`
`45
`45
`
`50
`50
`
`55
`
`60
`60
`
`65
`65
`
`70
`70
`
`75
`75
`
`

`
`10
`l()
`
`30
`30
`
`20
`20
`
`3,605,906
`3,605,906
`6
`6
`5
`ing first and second, spaced apart
`longitudinally
`ing first and second, spaced apart longitudinally
`60 from pivoting during the periods that the blade struc-
`60 from pivoting during the periods that the blade struc
`ture 94 is disconnected from the vehicle. The O-rings
`extending frame members, said vehicle having first
`extending frame members, said vehicle having first
`ture 94 is disconnected from the fvehicle. The O-rings
`maintain the cross beam 60 in the position that it was
`and second front wheel members positioned out-
`and second front wheel members positioned out
`maintain the cross beam 60 in the position that it was
`in when the blade structure was removed therefrom which
`wardly of said first and second frame members
`wardly of said first and second frame members
`in .when the blade structure was removed therefrom which
`respectively,
`respectively,
`results in tube 92 and pivot shaft 98 being properly aligned
`results in tube 92 and pivot shaft 98 being properly aligned
`when it is desired to again connect the blade structure to
`a first push arm means having rearward and forward
`when it is desired to again connect the blade structure to
`a first push arm means having rearward and forward
`ends and being connected at its rearward end to said
`the vehicle. However, the frictional engagement between
`ends and being connected at its rearward end to said
`the vehicle. However, the frictional engagement between
`first frame member and extending forwardly there-
`th O-rings and the side plates is such that the cross beam
`first frame member and extending forwardly there
`th O-rings and the side plates is such that the cross beam
`from,
`60 can pivot about bolts 78 and 90 when blade structure
`from,
`60 can pivot about bolts 78 and 90 when blade structure
`94 is secured to the vehicle.
`a second push arm means having rearward and for-
`a second push arm means having rearward and for
`94 is secured to the vehicle.
`ward ends and being connected at its rearward end
`Thus it can be seen that an extremely durable, eflicient
`ward ends and being connected at its rearward end
`Thus it can be seen that an extremely durable, efiicient
`to said second frame member and extending for-
`and convenient snowplow has been provided which ac-
`and convenient snowplow has been provided which ac
`to said second frame mem