US20030159317A1 - Snowblower controls - Google Patents
Snowblower controls Download PDFInfo
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- US20030159317A1 US20030159317A1 US10/391,819 US39181903A US2003159317A1 US 20030159317 A1 US20030159317 A1 US 20030159317A1 US 39181903 A US39181903 A US 39181903A US 2003159317 A1 US2003159317 A1 US 2003159317A1
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- recited
- assembly
- bail
- snowblower
- bracket
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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
Definitions
- This invention relates to snowblowers and more specifically to a control structure for engaging the drives to the wheels and the discharge auger and for swingably moving the discharge chute.
- Snow removal equipment such as walk-behind snowblowers include a frame or chassis to which is mounted a pair of ground engaging drive wheels, an engine, and an auger in the form of a rotary blade for slicing and shifting snow toward a discharge chute where it is then expelled.
- a pair of curved handles which extend upwardly from the chassis. The ends of these handles have grips for the operator to hold and guide the machine as it is operated. Often, the handle and grip portion are bent straight out towards the operator.
- both drive wheels are driven together and are not independently powered. Accordingly, snowblowers are turned through pushing on one handlebar and holding or pulling on the other.
- control levers and handles for changing the speed and direction of the snowblower drive wheels, as well as the orientation of the chute through which snow is directed are also located on the control panel. These levers and handles are placed throughout a top surface of the panel and spaced at a distance from the auger and traction controls which are used to engage the drives to the wheels and the auger.
- the operator To adjust the speed or direction of the snowblower or to adjust the orientation of the chute, the operator must take one hand off the control and move it to the corresponding control for machine speed or orientation of the chute. In doing so, the drives to the wheels and/or the auger will no longer be engaged since the control levers for those drives will no longer be pressed against the handlebar.
- a control platform which permits continued engagement of the traction drive and auger while allowing an operator to simultaneously adjust the machine speed and/or direction as well as the orientation of the snow discharge chute. Adjustment of the machine speed and/or direction can be made with the thumb of one hand while the orientation of the chute can be adjusted with the thumb of the other hand.
- the control platform is mounted atop a handlebar framework which extends upwardly from the snowblower chassis.
- the platform has attached to it a bail which is pivotably moveable fore and aft within the platform. Attached to the bail is a pair of control levers, one for engaging or disengaging the traction drive and another for likewise controlling engagement and disengagement of the auger.
- the control for varying the speed and direction of the drive wheels, once engaged, is provided through swingably mounting the bail for fore and aft motion.
- a releasable pawl carried by the bail for engagement with slots in the platform to secure the bail in any of a plurality of positions as the speed or direction of the snowblower is changed. Selection of either a different speed or direction occurs when the operator engages the pawl with a particular slotted portion of the platform.
- the bail with its levers and pawl are swingably coupled so as to allow the operator to control engagement of the traction drive and auger while, at the same time, allowing a change in the speed or direction of the snowblower.
- a toggle switch that controls an electrical motor which changes the orientation of the snow discharge chute and thus, the direction towards which snow is expelled from the snowblower.
- the toggle switch is attached to the bail and is located beside the control lever for the auger. Because of the switch location, operation of the auger and chute may occur without requiring the operator to remove his or her hand from the auger control lever since the switch is controllable by the push of a thumb. Accordingly, operation of the auger as well as manipulation of the directional movement of the discharge chute may take place simultaneously. Vertical deflection of the snow as it is discharged from the chute is achieved through use of a cap mounted on top of the chute which is controlled by a handle carried on the handlebar framework to the side of and in front of the switch.
- the configuration provides a bail with ends having a downward slope in order to allow an operator to more easily grasp and control those ends by being able to exert greater leverage over them when operating the snowblower. Accordingly, the operator is able to minimize the pushing or pulling often required by previous designs, thus resulting in easier and less stressful operation of the snowblower.
- FIG. 1 is a front and side elevation view of the snowblower according to the present invention.
- FIG. 2 is a plan view of the snowblower as illustrated in FIG. 1.
- FIG. 3 is an enlarged plan view of the control platform included in the present invention.
- FIG. 3A is an enlarged view of the traction control lever and a thumb operated pawl.
- FIG. 4 is a schematic illustrating the snowblower drive, auger and control components.
- FIG. 5 is a rear elevated perspective view of the control platform according to FIG. 4.
- FIG. 6 is a rear and side elevated perspective view of the right side of the control platform.
- FIG. 7 is a front and side elevated perspective view of the left side of the control platform.
- FIG. 8 is an enlarged side elevated perspective view illustrating the drive control lever and pawl mounting on the handlebar.
- FIG. 1 there is shown a snowblower 10 having a frame 12 supported upon a pair of ground engaging drive wheels 14 , 16 and including an engine 18 and discharge chute 20 mounted with the frame 12 .
- a collector housing 24 which surrounds an auger 26 .
- the auger 26 is provided as a helical/spiral shape rotary blade which slices through and then shifts snow towards an opening (not shown) in the frame 12 .
- the opening serves as a passageway through which snow is directed to the discharge chute 20 .
- snow Upon entering the chute 20 , snow is directed outwardly and away from the snowblower 10 .
- a mounting or handlebar arrangement 30 extending upwardly and away from the frame 12 .
- Arrangement 30 is a U-shaped extension having legs 34 , 36 and is connected with the rear portion 28 of the frame 12 .
- Bolted to legs 34 , 36 is a further U-shaped handlebar arrangement 38 having a set of members 40 , 42 which curve to form a rearwardly bent portion 44 .
- a mounting plate 46 is attached to the portion 44 .
- Plate 46 is joined to portion 44 through the use of fasteners 48 such as bolts and nuts.
- a control platform or unit 50 for directing various functions of the snowblower's operation is attached to the plate 46 . Those functions include engaging or disengaging the drives for the wheels 14 , 16 as well as the auger 26 , changing the speed or direction of the machine, and providing a different orientation for the discharge chute 20 .
- the platform 50 is open at its sides and is constructed of sheet metal having a generally rectangular configuration with top and bottom surfaces 52 and 54 , respectively, and front and rear faces 56 and 58 .
- Each of the surfaces 52 , 54 and faces 56 , 58 provide a housing for the structure discussed below and contained therein.
- platform 50 will be covered by a casing (not shown) provided to shelter platform 50 .
- the top 52 of the platform 50 is an arcuately shaped surface having a downward slope beginning at the rear 60 of the platform 50 and accelerating as the top surface 52 extends towards the front 22 of the snowblower 10 .
- the downwardly sloped top surface 52 are notches 62 permitting a selection of speeds and directions in which the snowblower 10 may travel.
- the rear bottom surface 64 of platform 50 includes two upturned mounting tabs 66 , 68 , one on either side of the bottom surface 64 .
- Mounts 66 , 68 align with each other and contain an opening 70 therethrough.
- Pins 71 are carried in the openings 70 and pivotally connect a U-shaped bracket 72 at point A shown in FIG. 7 to each of the mounts 66 , 68 .
- Bracket 72 has a pair of upwardly extending legs 74 , 76 .
- leg 74 and also unshown leg 76 include arcuately shaped depressions 78 at their ends 80 to which is secured a bail 82 .
- Bail 82 which is partially housed within platform 50 , is thereby allowed to pivot fore and aft about the pins 71 mounted at point A to control fore and aft movement of the snowblower 10 .
- bail 82 has left and right ends 84 , 86 which extend from the middle thereof and protrude from the platform 50 for permitting an operator to grasp the bail 82 and operate the snowblower 10 .
- rubber grips 88 are provided to cover each of the ends 84 , 86 .
- each grip 88 may have heating elements therein (not shown) for warming an operator's hands when using the snowblower 10 .
- left and right control levers 90 , 92 are pivotally fastened with the bail 82 .
- Lever 90 is attached to the left end 84 of the bail 82 and is used to engage or disengage a drive system 94 providing power or traction to wheels 14 , 16 ; and thus allows the snowblower 10 to obtain and maintain either forward or rearward motion.
- Lever 92 is connected with the right end 86 of bail 82 and controls engagement or disengagement of the auger 26 .
- Each of the levers 90 , 92 has holes 96 and 97 at their respective ends 98 . Holes 96 , 97 allow for attachment of cables 100 , 102 , as best seen in FIG. 7, with the respective lever 100 or 102 at one end thereof. At the other end of the cables 100 , 102 , connection is made with respective drive wheel and clutching structures that are controlled by the respective levers 90 , 92 .
- a pawl 104 is pivotally attached to the swinging bail 82 at a mid-portion thereof, as best shown in FIG. 3A.
- Pawl 104 has a top surface 106 connecting arms 107 and a thumb tab 108 .
- the tab 108 can easily be actuated by an operator's thumb when his/her hand is on the lever 90 and while the snowblower 10 is operating.
- the operator can engage or disengage the drive system 94 to engage the wheels 14 , 16 by squeezing the clutching lever 90 as well as select the speed and direction of the drive wheels 14 , 16 through engaging the pawl 104 in one of its plurality of settings.
- a forwardly extending post 110 secured to the base of the U-shaped bracket 72 , see FIGS. 6 and 7.
- the post 110 includes first and second ends 112 , 114 with end 112 being fixedly joined to the bracket 72 at a midpoint 115 thereof.
- the post 110 is connected to bracket 72 at an angle to permit it to swing fore and aft and to avoid interference with platform 50 as the bail 82 moves.
- a series of holes 116 that allow a peg 124 of collar 122 to be attached to the post in one of the holes 116 , see FIGS. 6 and 7.
- the collar 122 is adapted to threadably receive a linkage rod 118 , at a first end 120 thereof, which in turn is coupled with structure, discussed below, to selectively change the speed or direction of the transmission.
- bail 82 is linked to the drive system 94 , thereby allowing an operator to swing the bail 82 and change the speed or direction of the snowblower 10 while operating.
- Collar 122 includes the peg 124 for mating engagement with the post 110 via insertion through one of the holes 116 .
- Peg 124 contains an opening 126 through which a fastener, preferably a spring locking pin 128 is placed, as shown in FIG. 6.
- Pin 128 is placed through opening 126 so as to secure the collar 122 to the post 110 and couple the rod 118 with the post 110 .
- FIG. 4 it can be seen that at a second end 130 of rod 118 , an oblong plate 132 extends transversely to the longitudinal axis of the rod 118 .
- the plate 132 is interconnected with a rotating link or pin 134 to the drive system 94 at point B for permitting movement of the snowblower 10 upon actuation of the bail 82 in a forward or rearward direction.
- a bracket 136 is secured perpendicularly to the handlebar 82 .
- the bracket 136 carries or supports an electrical switch 138 which is connected to and controls power supplied to a motor 140 , as shown in FIG. 1.
- the motor 140 is supported on top of the frame 12 adjacent the discharge chute 20 and coupled with the chute in a conventional way to swing the chute about a vertical axis to direct the discharge of snow in any of a variety of directions.
- switch 138 is provided in the form of a toggle permitting the operator to use only a thumb when desiring to control operation of the chute 20 .
- FIG. 4 a schematic is provided showing connection of the control platform 50 beyond the mounting plate 46 .
- the cables 100 , 102 Connected with the first and second levers 90 , 92 , respectively, are the cables 100 , 102 .
- Each cable 100 , 102 attaches the lever 90 or 92 to the respective structure which it controls.
- Cable 100 connects the first or left lever 90 with a first clutch 146 which is used to deliver power to the wheels 14 , 16 to allow the snowblower to move forwardly or rearwardly at a chosen speed.
- cable 102 as shown in FIG. 4, connects the second or right lever 92 with a second clutch 144 used to transfer power from the engine 18 to the auger 26 .
- Each of the cables 100 , 102 includes a spring 148 to provide proper tensioning along the length thereof to reduce the likelihood of their lengthening or breakage.
- Each of the drive wheels 14 , 16 is mounted along a driven shaft or axle 150 . Also mounted on the shaft 150 are a series of structural supports 152 . Further mounted with the shaft 150 is a pair of clutches 154 , 156 . Each of the clutches 154 , 156 is operable upon load to transfer power and control the direction of each of the wheels 14 , 16 after clutch 146 has been actuated. Power is transferred from the engine 18 to both of the wheels 14 , 16 and the auger 26 via a system of pulleys and belts, designated generally as 158 , which are connected with an output shaft 159 and further shafts 160 , 162 , 164 to which the wheels 14 and 16 and auger 26 are attached.
- a system of pulleys and belts designated generally as 158 , which are connected with an output shaft 159 and further shafts 160 , 162 , 164 to which the wheels 14 and 16 and auger 26 are attached.
- Transmission 166 is provided, preferably, in the form of a friction disc drive.
- the control platform 50 is also contemplated to function with a hydrostatic transmission as well.
- the control platform 50 permits the operator to perform any combination of four functions simultaneously whereby those functions include: (1) engaging or disengaging the drive system 94 to deliver or not deliver power to the wheels 14 , 16 ; (2) adjusting the speed or direction of the snowblower 10 while in operation; (3) engaging or disengaging the auger 26 ; and (4) adjusting the orientation of the snow discharge chute 20 . Allowing these functions to be performed together is the ability to move the bail 82 within the platform as well as the proximity of the pawl 106 and toggle switch 138 relative to the bail 82 .
- an operator squeezes left lever 90 shown in FIG. 7 downwardly against grip 88 at end 84 of the bail 82 .
- the cable 100 interconnecting the lever 90 and clutch 144 engages clutch 144 so as to allow power to be transferred between the engine and the respective wheel clutches 152 , 154 and then to each of the wheels 14 , 16 . If the lever 90 is not squeezed or otherwise pressed against the grip 88 , no power is transferred to the wheels 14 , 16 , thus leaving the snowblower 10 in a stationary position.
- an operator may change either the speed or direction of the snowblower 10 .
- An operator may change the speed or direction by moving the bail 82 and attached pawl 104 forwardly or rearwardly.
- the pawl 104 which is pivotally attached with the bail 82 at a mid-portion thereof and to the right of lever 90 , allows the operator to use his/her left thumb to engage or disengage the pawl 104 and notch 62 of platform 50 and change the positioning of bail 82 .
- Pawl 104 is biased for movement in and out of a particular notch 62 by a spring (not shown) connected to the pawl 104 and pin 71 therebelow.
- post 110 is, preferably, welded to the bottom of bracket 72 and angularly forward of the legs 74 , 76 .
- Post 110 and thus bail 82 , is connected to transmission by the rod 118 .
- bail 82 is moved forwardly or rearwardly and pawl 104 is positioned within one of the various notches, movement of the post 110 and rod 118 together, as seen in FIGS. 6 and 7, effects a change in the drive 94 thereby allowing the operator to control the snowblower 10 at a different speed or in a different direction.
- switch 138 is located to the left of right lever 92 so as to allow the operator to control the orientation of the snow discharge chute 20 and thus, the direction towards which snow is thrown during the removal process. To effect a different orientation, the operator need only apply sustained pressure to the switch 138 . Doing so will activate the motor 140 which is geared to and positioned adjacent the chute 20 , as shown in FIG. 1, to cause the chute 20 to move to a different location.
- All of the above functions may be accomplished simultaneously due to the proximity and cooperation of their respective controlling structure.
- the operator is permitted to retain his/her hands on both the traction and auger controls 90 , 92 while still being able to control selection of speed and/or direction as well as the orientation of the discharge chute 20 .
- the ability to control all of these functions simultaneously enables the operator to experience greater comfort and flexibility in operation of the snowblower since his/her hands may remain on the bail at all times.
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- Cleaning Of Streets, Tracks, Or Beaches (AREA)
Abstract
A control platform for directing the operation of a snowblower is provided. The platform includes a bail which is pivotably moveable within the platform. Attached to and moveable with the bail are levers for controlling the engagement or disengagement of the drives that power the snowblower's wheels and auger. Also attached with the bail are controls which permit the operator to change the speed and/or direction of the snowblower as well as the orientation of the discharge chute. Through their attachment to the bail and proximity relative to one another, an operator can use each of the levers and controls simultaneously. Accordingly, the platform permits an operator to engage or disengage the drives which power the snowblower's wheels and auger while, simultaneously, enabling a change in speed or direction as well as the direction towards which snow is directed during the removal process.
Description
- This application is a division of U.S. application Ser. No. 09/784,365, filed Feb. 15, 2001.
- 1. Field of the Invention
- This invention relates to snowblowers and more specifically to a control structure for engaging the drives to the wheels and the discharge auger and for swingably moving the discharge chute.
- 2. Description of Related Art
- Snow removal equipment such as walk-behind snowblowers include a frame or chassis to which is mounted a pair of ground engaging drive wheels, an engine, and an auger in the form of a rotary blade for slicing and shifting snow toward a discharge chute where it is then expelled. To assist the operator in directing movement of the snowblower, there ordinarily exists a pair of curved handles which extend upwardly from the chassis. The ends of these handles have grips for the operator to hold and guide the machine as it is operated. Often, the handle and grip portion are bent straight out towards the operator. Typically, both drive wheels are driven together and are not independently powered. Accordingly, snowblowers are turned through pushing on one handlebar and holding or pulling on the other. With handles which extend at the operator, it can be difficult for the operator to exert the necessary forces required to turn the machine. This is particularly true for large machines and/or smaller operators. Thus, it would be beneficial to provide a handle that has a configuration and design which would decrease the amount of leverage needed to maneuver the snowblower.
- It is common to provide snowblower controls that engage the traction drive and auger, adjust the speed and direction of the machine and orient the discharge chute at a control panel. The panel is usually secured to the handlebar(s) forwardly of the grips. Typical control levers used to engage the traction drive and/or auger are mounted to the handlebar and have an underside conforming to the shape of the handlebar. These levers pivot on the handlebar and extend upwardly from the bar when their respective auger or traction function is not engaged. To engage the auger or traction drive, an operator must press the respective lever downwardly against the handlebar and hold it there as long as engagement is desired. If the operator releases the lever, its auger or traction function will disengage.
- Many times, control levers and handles for changing the speed and direction of the snowblower drive wheels, as well as the orientation of the chute through which snow is directed, are also located on the control panel. These levers and handles are placed throughout a top surface of the panel and spaced at a distance from the auger and traction controls which are used to engage the drives to the wheels and the auger. To adjust the speed or direction of the snowblower or to adjust the orientation of the chute, the operator must take one hand off the control and move it to the corresponding control for machine speed or orientation of the chute. In doing so, the drives to the wheels and/or the auger will no longer be engaged since the control levers for those drives will no longer be pressed against the handlebar. In other words, as a result of the spacing between the auger and traction levers and above-mentioned controls, an operator is unable to maintain engagement of both the snowblower's traction drive and auger while making another adjustment such as, for example, shifting into a different operating speed.
- Thus, it would be desirable to provide a configuration of controls which would allow the operator to use the snowblower with both the traction drive and auger engaged, while at the same time, allowing the ability to shift into a different speed or direction and/or change the orientation of the chute through which snow is expelled.
- To address the above desire, there is provided a control platform which permits continued engagement of the traction drive and auger while allowing an operator to simultaneously adjust the machine speed and/or direction as well as the orientation of the snow discharge chute. Adjustment of the machine speed and/or direction can be made with the thumb of one hand while the orientation of the chute can be adjusted with the thumb of the other hand.
- The control platform is mounted atop a handlebar framework which extends upwardly from the snowblower chassis. The platform has attached to it a bail which is pivotably moveable fore and aft within the platform. Attached to the bail is a pair of control levers, one for engaging or disengaging the traction drive and another for likewise controlling engagement and disengagement of the auger. The control for varying the speed and direction of the drive wheels, once engaged, is provided through swingably mounting the bail for fore and aft motion. To lock the speed in any of a variety of settings, there is provided a releasable pawl carried by the bail for engagement with slots in the platform to secure the bail in any of a plurality of positions as the speed or direction of the snowblower is changed. Selection of either a different speed or direction occurs when the operator engages the pawl with a particular slotted portion of the platform.
- The bail with its levers and pawl are swingably coupled so as to allow the operator to control engagement of the traction drive and auger while, at the same time, allowing a change in the speed or direction of the snowblower.
- Also attached to the bail is a toggle switch that controls an electrical motor which changes the orientation of the snow discharge chute and thus, the direction towards which snow is expelled from the snowblower. The toggle switch is attached to the bail and is located beside the control lever for the auger. Because of the switch location, operation of the auger and chute may occur without requiring the operator to remove his or her hand from the auger control lever since the switch is controllable by the push of a thumb. Accordingly, operation of the auger as well as manipulation of the directional movement of the discharge chute may take place simultaneously. Vertical deflection of the snow as it is discharged from the chute is achieved through use of a cap mounted on top of the chute which is controlled by a handle carried on the handlebar framework to the side of and in front of the switch.
- Thus, there is provided a configuration of controls for allowing an operator to obtain simultaneous activation of the drives for the wheels and the auger while, at the same time, enabling concurrent adjustments of other controls of the snowblower's operation. Additionally, the configuration provides a bail with ends having a downward slope in order to allow an operator to more easily grasp and control those ends by being able to exert greater leverage over them when operating the snowblower. Accordingly, the operator is able to minimize the pushing or pulling often required by previous designs, thus resulting in easier and less stressful operation of the snowblower.
- FIG. 1 is a front and side elevation view of the snowblower according to the present invention.
- FIG. 2 is a plan view of the snowblower as illustrated in FIG. 1.
- FIG. 3 is an enlarged plan view of the control platform included in the present invention.
- FIG. 3A is an enlarged view of the traction control lever and a thumb operated pawl.
- FIG. 4 is a schematic illustrating the snowblower drive, auger and control components.
- FIG. 5 is a rear elevated perspective view of the control platform according to FIG. 4.
- FIG. 6 is a rear and side elevated perspective view of the right side of the control platform.
- FIG. 7 is a front and side elevated perspective view of the left side of the control platform.
- FIG. 8 is an enlarged side elevated perspective view illustrating the drive control lever and pawl mounting on the handlebar.
- As illustrated in FIG. 1, there is shown a
snowblower 10 having aframe 12 supported upon a pair of groundengaging drive wheels engine 18 anddischarge chute 20 mounted with theframe 12. At thefront 22 of thesnowblower 10, there is provided acollector housing 24 which surrounds anauger 26. Theauger 26 is provided as a helical/spiral shape rotary blade which slices through and then shifts snow towards an opening (not shown) in theframe 12. The opening serves as a passageway through which snow is directed to thedischarge chute 20. Upon entering thechute 20, snow is directed outwardly and away from thesnowblower 10. At the rear 28 of thesnowblower 10 is a mounting orhandlebar arrangement 30 extending upwardly and away from theframe 12.Arrangement 30 is a U-shapedextension having legs rear portion 28 of theframe 12. Bolted tolegs U-shaped handlebar arrangement 38 having a set ofmembers bent portion 44. - As shown throughout FIGS.1-8, a mounting
plate 46 is attached to theportion 44.Plate 46 is joined toportion 44 through the use offasteners 48 such as bolts and nuts. A control platform orunit 50 for directing various functions of the snowblower's operation is attached to theplate 46. Those functions include engaging or disengaging the drives for thewheels auger 26, changing the speed or direction of the machine, and providing a different orientation for thedischarge chute 20. Theplatform 50 is open at its sides and is constructed of sheet metal having a generally rectangular configuration with top andbottom surfaces surfaces platform 50 will be covered by a casing (not shown) provided to shelterplatform 50. The top 52 of theplatform 50 is an arcuately shaped surface having a downward slope beginning at the rear 60 of theplatform 50 and accelerating as thetop surface 52 extends towards thefront 22 of thesnowblower 10. Along this downwardly slopedtop surface 52 arenotches 62 permitting a selection of speeds and directions in which thesnowblower 10 may travel. - Looking specifically to FIGS. 6 and 7, the
rear bottom surface 64 ofplatform 50 includes two upturned mountingtabs bottom surface 64.Mounts opening 70 therethrough.Pins 71 are carried in theopenings 70 and pivotally connect aU-shaped bracket 72 at point A shown in FIG. 7 to each of themounts Bracket 72 has a pair of upwardly extendinglegs leg 74 and alsounshown leg 76 include arcuately shapeddepressions 78 at theirends 80 to which is secured abail 82.Bail 82, which is partially housed withinplatform 50, is thereby allowed to pivot fore and aft about thepins 71 mounted at point A to control fore and aft movement of thesnowblower 10. - As shown in FIGS. 4 and 5,
bail 82 has left and right ends 84, 86 which extend from the middle thereof and protrude from theplatform 50 for permitting an operator to grasp thebail 82 and operate thesnowblower 10. To make that grasp easier, rubber grips 88 are provided to cover each of theends grip 88 may have heating elements therein (not shown) for warming an operator's hands when using thesnowblower 10. - As best seen in FIGS.6-7, left and right control levers 90, 92 are pivotally fastened with the
bail 82.Lever 90 is attached to theleft end 84 of thebail 82 and is used to engage or disengage adrive system 94 providing power or traction towheels snowblower 10 to obtain and maintain either forward or rearward motion.Lever 92 is connected with theright end 86 ofbail 82 and controls engagement or disengagement of theauger 26. Each of thelevers holes Holes cables respective lever cables respective levers - To select a particular speed and direction for the drive wheels, a
pawl 104 is pivotally attached to the swingingbail 82 at a mid-portion thereof, as best shown in FIG. 3A.Pawl 104 has atop surface 106 connectingarms 107 and athumb tab 108. Thetab 108 can easily be actuated by an operator's thumb when his/her hand is on thelever 90 and while thesnowblower 10 is operating. With this structure, the operator can engage or disengage thedrive system 94 to engage thewheels lever 90 as well as select the speed and direction of thedrive wheels pawl 104 in one of its plurality of settings. - To actuate the transmission and change the speed or direction of the
drive wheels bail 82 is swung fore and aft about its pivot A, there is provided a forwardly extendingpost 110 secured to the base of theU-shaped bracket 72, see FIGS. 6 and 7. Thepost 110 includes first and second ends 112, 114 withend 112 being fixedly joined to thebracket 72 at amidpoint 115 thereof. Thepost 110 is connected tobracket 72 at an angle to permit it to swing fore and aft and to avoid interference withplatform 50 as thebail 82 moves. At theopposite end 114 ofpost 110, there is provided a series ofholes 116 that allow apeg 124 ofcollar 122 to be attached to the post in one of theholes 116, see FIGS. 6 and 7. Thecollar 122 is adapted to threadably receive alinkage rod 118, at afirst end 120 thereof, which in turn is coupled with structure, discussed below, to selectively change the speed or direction of the transmission. Thus, with the connection of theswingable bail 82 to post 110 androd 118,bail 82 is linked to thedrive system 94, thereby allowing an operator to swing thebail 82 and change the speed or direction of thesnowblower 10 while operating. -
Collar 122 includes thepeg 124 for mating engagement with thepost 110 via insertion through one of theholes 116.Peg 124 contains anopening 126 through which a fastener, preferably aspring locking pin 128 is placed, as shown in FIG. 6.Pin 128 is placed throughopening 126 so as to secure thecollar 122 to thepost 110 and couple therod 118 with thepost 110. Looking now to FIG. 4, it can be seen that at asecond end 130 ofrod 118, anoblong plate 132 extends transversely to the longitudinal axis of therod 118. Theplate 132 is interconnected with a rotating link or pin 134 to thedrive system 94 at point B for permitting movement of thesnowblower 10 upon actuation of thebail 82 in a forward or rearward direction. - Looking now to the auger orientation control and FIG. 3, it can be seen that a
bracket 136 is secured perpendicularly to thehandlebar 82. Thebracket 136 carries or supports anelectrical switch 138 which is connected to and controls power supplied to amotor 140, as shown in FIG. 1. Themotor 140 is supported on top of theframe 12 adjacent thedischarge chute 20 and coupled with the chute in a conventional way to swing the chute about a vertical axis to direct the discharge of snow in any of a variety of directions. In the preferred embodiment,switch 138 is provided in the form of a toggle permitting the operator to use only a thumb when desiring to control operation of thechute 20. This form permits the operator's right hand to be kept on thebail 82 to maintain engagement of the drive system orauger 26 while at the same time allowing orientation of thedischarge chute 20 to be controlled. Wires electrically connecting theswitch 138 to themotor 140 are housed within a span oftubing 142, as shown in FIG. 1. - With FIG. 4, a schematic is provided showing connection of the
control platform 50 beyond the mountingplate 46. Connected with the first andsecond levers cables cable lever Cable 100 connects the first or leftlever 90 with a first clutch 146 which is used to deliver power to thewheels cable 102, as shown in FIG. 4, connects the second orright lever 92 with asecond clutch 144 used to transfer power from theengine 18 to theauger 26. Each of thecables spring 148 to provide proper tensioning along the length thereof to reduce the likelihood of their lengthening or breakage. - Each of the
drive wheels axle 150. Also mounted on theshaft 150 are a series ofstructural supports 152. Further mounted with theshaft 150 is a pair ofclutches clutches wheels clutch 146 has been actuated. Power is transferred from theengine 18 to both of thewheels auger 26 via a system of pulleys and belts, designated generally as 158, which are connected with anoutput shaft 159 andfurther shafts wheels auger 26 are attached. Allowing changes in power and direction of each of thewheels transmission 166 which is similarly connected to theshaft 150 by a pulley andbelt arrangement 158.Transmission 166 is provided, preferably, in the form of a friction disc drive. However, thecontrol platform 50 is also contemplated to function with a hydrostatic transmission as well. - In use, the
control platform 50 permits the operator to perform any combination of four functions simultaneously whereby those functions include: (1) engaging or disengaging thedrive system 94 to deliver or not deliver power to thewheels snowblower 10 while in operation; (3) engaging or disengaging theauger 26; and (4) adjusting the orientation of thesnow discharge chute 20. Allowing these functions to be performed together is the ability to move thebail 82 within the platform as well as the proximity of thepawl 106 andtoggle switch 138 relative to thebail 82. - First, to provide traction or motion to the snowblower's
drive wheels left lever 90 shown in FIG. 7 downwardly againstgrip 88 atend 84 of thebail 82. When thelever 90 is squeezed, thecable 100 interconnecting thelever 90 and clutch 144, as shown in FIG. 4, engages clutch 144 so as to allow power to be transferred between the engine and therespective wheel clutches wheels lever 90 is not squeezed or otherwise pressed against thegrip 88, no power is transferred to thewheels snowblower 10 in a stationary position. - Second and similarly as shown in FIGS. 6 and 4, an operator may hold
right lever 92 downwardly againstgrip 88 and end 86 ofbail 82 so as to engage the clutch 146 and allow power to be driven from theengine 18 to theauger 26. When this occurs,auger 26 will begin to turn, thereby allowing snow removal to occur. In a disengaged or inactive position,clutches levers bail 82. - Looking to FIG. 7, while the
lever 90 is held againstgrip 88 ofbail 82, an operator may change either the speed or direction of thesnowblower 10. An operator may change the speed or direction by moving thebail 82 and attachedpawl 104 forwardly or rearwardly. To accomplish this, thepawl 104 which is pivotally attached with thebail 82 at a mid-portion thereof and to the right oflever 90, allows the operator to use his/her left thumb to engage or disengage thepawl 104 and notch 62 ofplatform 50 and change the positioning ofbail 82.Pawl 104 is biased for movement in and out of aparticular notch 62 by a spring (not shown) connected to thepawl 104 and pin 71 therebelow. While thebail 82 is in a stationary position, thepawl 104 rests against a portion ofplatform 50 and within thenotches 62 provided along the left side thereof. When thebail 82 is moved,pawl 104 moves withbail 82 to pivot about point A. As this occurs, an operator may choose to lock thepawl 104 into any one of thenotches 62.Notches 62 represent a selection of reverse and neutral positions as well as positions representing six levels of speed. Further, as the operator actuates or moves thepawl 104 into adifferent notch 62, the change in speed or direction with respect to drive 94 is accomplished via connection ofpost 110 androd 118 with thetransmission 166. As shown in FIG. 7, post 110 is, preferably, welded to the bottom ofbracket 72 and angularly forward of thelegs Post 110, and thus bail 82, is connected to transmission by therod 118. Asbail 82 is moved forwardly or rearwardly andpawl 104 is positioned within one of the various notches, movement of thepost 110 androd 118 together, as seen in FIGS. 6 and 7, effects a change in thedrive 94 thereby allowing the operator to control thesnowblower 10 at a different speed or in a different direction. - Additionally,
switch 138, as best shown in FIG. 3, is located to the left ofright lever 92 so as to allow the operator to control the orientation of thesnow discharge chute 20 and thus, the direction towards which snow is thrown during the removal process. To effect a different orientation, the operator need only apply sustained pressure to theswitch 138. Doing so will activate themotor 140 which is geared to and positioned adjacent thechute 20, as shown in FIG. 1, to cause thechute 20 to move to a different location. - All of the above functions may be accomplished simultaneously due to the proximity and cooperation of their respective controlling structure. Thus, the operator is permitted to retain his/her hands on both the traction and auger controls90, 92 while still being able to control selection of speed and/or direction as well as the orientation of the
discharge chute 20. Accordingly, the ability to control all of these functions simultaneously enables the operator to experience greater comfort and flexibility in operation of the snowblower since his/her hands may remain on the bail at all times. - While the present invention has been described in conjunction with a specific embodiment, it is understood that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, this invention is intended to embrace all such alternatives, modifications and variations which fall within the spirit and scope of the appended claims.
Claims (18)
1. A control platform for a snowblower, the platform comprising:
a) a housing including a pair of mounts;
b) a bracket connected with each mount; and,
c) a bail operatively connected with the bracket enabling the bail to move within the housing to permit an operator to control movement of the snowblower.
2. The assembly as recited in claim 1 , wherein:
the mounts include apertures therein and are provided on a side of the housing.
3. The assembly as recited in claim 2 , wherein:
the bracket contains apertures therein and is joined to each mount adjacent the respective apertures of each of the mounts and bracket.
4. The assembly as recited in claim 3 , wherein:
the bracket is pivotable relative to the mounts.
5. The assembly as recited in claim 4 , wherein:
the bracket is U-shaped and includes two upwardly extending legs relative to the bottom surface of the housing, each of the legs having a concave shaped depression formed at the end thereof.
6. The assembly as recited in claim 5 , wherein:
the bail is attached to the bracket at the depression of each leg, is pivotable with the bracket and has portions thereof extending beyond the periphery of the housing.
7. The assembly as recited in claim 6 , wherein:
the extending portions include grips on which an operator grasps while operating the snowblower.
8. The assembly as recited in claim 7 , wherein:
the bail has a pair of levers attached at its extending portions, one of the levers actuating a clutch controlling the transfer of power to a set of drive wheels and the other of the levers actuating a clutch controlling the transfer of power to an auger.
9. The assembly as recited in claim 8 , wherein:
each of the levers is pivotally coupled to the bail and has an underside conforming to a top surface of the respective extending portion to which it is coupled.
10. The assembly as recited in claim 9 , further comprising:
a pawl adjustably coupled to the bail for permitting a change in speed or direction of the snowblower.
11. The assembly as recited in claim 10 , wherein:
the pawl includes a top surface and two arms extending therefrom.
12. The assembly as recited in claim 11 , wherein:
the top surface of the platform contains a series of notches along one side thereof, each of the notches providing a selection as to speed or direction.
13. The assembly as recited in claim 12 , wherein:
the bracket includes a post having a pair of ends and which is angularly displaced relative to the bracket.
14. The assembly as recited in claim 13 , further comprising:
a rod for linking the post to a drive system to enable a change in the drive as to either speed or direction.
15. The assembly as recited in claim 14 , wherein:
when the pawl engages one of the notches, motion of the snowblower is restricted to a selected speed or direction.
16. The assembly as recited in claim 15 , further comprising:
a switch for permitting operation of a snow discharge chute.
17. The assembly as recited in claim 16 , wherein:
the switch is connected with the bail.
18. The assembly as recited in claim 17 , wherein:
connection of the levers, the pawl and the switch to the bail simultaneously permits an operator to engage or disengage clutching structure for a set of drive wheels or an auger, change the speed or direction of the snowblower and adjust the orientation of the discharge chute, respectively, as the bail is pivoted either forwardly or rearwardly.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/391,819 US20030159317A1 (en) | 2001-02-15 | 2003-03-19 | Snowblower controls |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/784,365 US6578292B2 (en) | 2001-02-15 | 2001-02-15 | Snowblower controls |
US10/391,819 US20030159317A1 (en) | 2001-02-15 | 2003-03-19 | Snowblower controls |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/784,365 Division US6578292B2 (en) | 2001-02-15 | 2001-02-15 | Snowblower controls |
Publications (1)
Publication Number | Publication Date |
---|---|
US20030159317A1 true US20030159317A1 (en) | 2003-08-28 |
Family
ID=25132233
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
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US09/784,365 Expired - Fee Related US6578292B2 (en) | 2001-02-15 | 2001-02-15 | Snowblower controls |
US10/391,819 Abandoned US20030159317A1 (en) | 2001-02-15 | 2003-03-19 | Snowblower controls |
US10/391,721 Expired - Fee Related US6662477B2 (en) | 2001-02-15 | 2003-03-19 | Snowblower controls |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/784,365 Expired - Fee Related US6578292B2 (en) | 2001-02-15 | 2001-02-15 | Snowblower controls |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/391,721 Expired - Fee Related US6662477B2 (en) | 2001-02-15 | 2003-03-19 | Snowblower controls |
Country Status (1)
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US (3) | US6578292B2 (en) |
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US9546462B2 (en) | 2014-11-19 | 2017-01-17 | The Toro Company | Rotor and rotor housing for a snowthrower |
USD776721S1 (en) | 2015-10-02 | 2017-01-17 | The Toro Company | Snowthrower chute control |
USD777795S1 (en) | 2015-09-15 | 2017-01-31 | The Toro Company | Handle for a ground working implement |
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US7849613B2 (en) * | 2007-08-06 | 2010-12-14 | Honda Motor Co., Ltd. | Heated handle apparatuses and methods using power equipment exhaust |
US20090038184A1 (en) * | 2007-08-06 | 2009-02-12 | Honda Motor Co., Ltd. | Heated handle apparatuses and methods using power equipment exhaust |
US9624632B2 (en) | 2014-03-06 | 2017-04-18 | Immeubles Mfp 1006 Inc. | Snowblower impeller |
US9708782B2 (en) | 2014-03-06 | 2017-07-18 | Immeubles Mfp 1006 Inc. | Snowblower auger |
US9546462B2 (en) | 2014-11-19 | 2017-01-17 | The Toro Company | Rotor and rotor housing for a snowthrower |
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US9399846B2 (en) | 2014-11-19 | 2016-07-26 | The Toro Company | Snowthrower and chute rotation control mechanism for use with same |
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Also Published As
Publication number | Publication date |
---|---|
US20020108274A1 (en) | 2002-08-15 |
US6578292B2 (en) | 2003-06-17 |
US6662477B2 (en) | 2003-12-16 |
US20030154632A1 (en) | 2003-08-21 |
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Legal Events
Date | Code | Title | Description |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |