BRIEF DESCRIPTION
Control Disc Improvement: Driver Operated
There are presently 25 tow-behind spreaders that can use our user-installed Tow-Behind Driver Seat Operated Slide Gate Chute Control Hardware Kit, to position the slide gate chute from the drivers seat. However, there are a few low-end rated spreaders where the manufacturer uses heavy springs, as well as nylon spring-pressured washers to squeeze the lower portion of the original manufactures' spreader handle lever, so when the handle lever is moved, by the user, it stays (put) in that position. This, of course, requires the operator to use much more force on their hand and finger joints to apply enough pressure to move and reposition the slide gate chute. Thus, a person with arthritis or other hand squeezing difficulties may be unable to use our original grab-ball control disc method. To better suit these individuals with hand or finger disabilities, we have designed two (2) alternate control disc methods as a (continuation in part) with improvements that uses a fulcrum, (pivot mechanics) design, which enables the user, from their drivers' seat, to easily compensate for the firm spring tension and pressure applied to the washers on the handle axle, without asserting very much pressure on their fingers, hand joints or similar hand deficiencies, to easily open and close the slide gate chute. For this reason, the improvement of these two Fulcrum Control user-installed kits is used to help the user to apply less force to move, a heavy load.
BRIEF DESCRIPTION OF DRAWINGS
FIG. 1. Controller Type 1: Round pulley and handle lever (Fulcrum Pivot Control)
FIG. 2. Controller Type 2: Long handle with pivot arm (Fulcrum Pivot Control)
FIG. 3. Detailed pulley (Fulcrum Pivot Control) Type 1
FIG. 4. Detailed handle (Fulcrum Pivot Control) Type 2
FIG. 5. Hardware aid fastener detailed assembly references
BRIEF DESCRIPTION-PULLEY-FULCRUM-CONTROL
FIG. 1
The embodiment of this improved control disc device (56) is mounted on the end of our support shaft (27) at the drivers' seat, is comprised of a round disc, with a center groove, much like a pulley, but not limited to a tubule roll, or part of a tubular dish shaped disc or circular shaped object to wrap or coil a preferred nylon twine around, but not limited to, cord, rope, wire, sheathed cable or similar flexible line, that can shorten and lengthen by rotating, pulling or pushing movement to move the twine-line back and forth, but not limited to six (6) inches, has a handle lever attached (54) for the drivers hand to push, using the fulcrum pivot, to rotate the said pulley, which will then pull the said twine through various pulleys, mounted on the spreader, to pull and operate the slide gate discharge chute from the drivers' seat.
Detailed Description-Pulley-Fulcrum-Control
FIG. 1
“Note”: For clarity, our shaft (27) is not fully shown and the two double pulleys (set 32 and set 33) are separated so it is easier to visualize how the twine line travels through the double pulleys, mounted on the spreader.
Our support shaft (27) is mounted with straps (28) just as before, to the side of the spreader hopper and places the other end of the shaft and the control pulley (to be easily reached) at the drivers' seat. At the drivers seat (DETAIL FIG. 3) is a grooved pulley shaped circular control disc (56) with an attached handle lever (54) comes pre-assembled to the end of our support shaft with a bolt (57) lock washer, nylon washer and non-slip nut. A double swivel pulley (32T) and (32B) FIG. 1, for our twine-line, is bolted to the shaft using a conduit strap, located further down the shaft (27) in line with the front of the plastic hopper. In line with those two double pulleys and fastened to the top of the plastic hopper with screw, lock washer and non-slip nut is an (L) bracket. This (L) bracket connects another set of double swivel pulleys (33T) and (33B). The spreader handle gets a clamp on (36) U bolt with loop rings, so there's no steel to drill. Bolted to the tow bar (22) is an existing bolt (38A) which connects the to r bar to the tractor hitch. We attach an (L) bracket (38) to existing bolt (38A) and mount a single swivel pulley (30C) for our twine (48), For reference; on drawing FIG. 1-A, the slide gate unit (10) has an open slide gate porthole chute (8). And, drawing FIG. 1-B below, the slide gate (10) has a closed slide gate chute (9). The hardware kit components are now all attached to the spreader.
Detailed Specifications of the Invention with Method of Operation
FIG. 1-A: Lacing of the twine-line (48). First we set the handle lever (6) so that the slide gate chute porthole is open (8) (FIG. 1-A) and the granular product flow adjustment (12) is “fully” open to maximum position. We set fulcrum handle lever (54) FIG. 3A located on control pulley (56) facing upwards, until the stop bolt (67A) rests against the upper portion of our support shaft (27). Our twine line (48C) FIG. 1A is first attached to the shaft mounted control pulley (56) onto a tie off hole (70) located on the fulcrum handle lever (54) that is facing upwards. The other end of that twine-line (48C) proceeds down and around the upper double pulley (32T) mounted on our shaft (27) then over to the upper double pulley (33T) mounted on the spreader top wall and then connects and ties off (with no slack) onto our U-bolt clamp (36) rear facing (loop ring) mounted to the top of handle lever (6) as shown. This handle lever (6) is the original manufacturers' hand-held lever that moves the connecting rod (4) that moves the slide gate chute unit (10) to force the slide gate porthole chute to open and close.
We now take the other new cut end of the twine-line (48D) and tie it to spreader handle lever (6) to our U-bolt clamp (36) to the other front facing (loop ring). The twine-line (48D) continues downward over to the single swivel pulley (30C) located on the tow bar, then returns through the spreader attached lower pulley (33B) then continues over to the lower pulley (32B) attached to our support shaft. After the twine-line (48D) leaves the pulley (32B) it continues freely along the shaft (27) up to, and connects to our fulcrum pulley control disc (56) at the drivers' seat to the same handle (54) tie off hole (70) where the twine-line (48C) originally started from. Our owner's installation instructions will show that the stop pin (57A) FIG. 3A on the control pulley (56) must stay hitting and resting on the top of our support, shaft (27) and then the user can pull the twine-line (48D) taught and tie it off. Both ends of the twine-line are tied to the pulley connection hole (70) so the twine does not slip when the pulley is rotated. The twine-line lacing is complete.
The twine-line is attached to all the pulleys and our fulcrum pulley in a continuous loop, whereas, when the fulcrum pulley rotates to pull the twine-line in one direction, it also rotates and release the twine-line in the opposite direction. There is one (1) stop bolt (57A) through the pulley that hits the support shaft when the slide gate (10) porthole chute is open (8) and a pulley-through-bolt (57B) which attaches handle to pulley, is a stop pin as well, when it hits the support shaft (27) when the pulley handle lever (64) is pointed downward and the slide gate (10) porthole chute (9) is closed FIG. 1-B. The stop bolt is primarily used for setting, up the twine in the open and closed slide gate position before tying it off onto the pulley hole (70). In FIG. 1-B when the driver chooses to close the slide gate unit (10), they simply move and rotate the fulcrum pulley control handle lever (54) downward FIG. 1-B, and the fulcrum control pulley starts pulling on the twine (48C) which then pulls the spreader hand le lever (6) back towards the hopper and the slide gate porthole chute (9) closes. The stop bolts (57A) and (57B) is a precaution to prevent the pulley from over compensating however, the pulley will not move any farther once the slide gate chute unit (10) is closed (9) or (8) is open. The operator can always adjust the granular products' flow rate.
The operator uses the control pulley (56), with its fulcrum long handle (54) (Fulcrum Pivot Physics) to apply less force to move a heavy load created by the tension of the manufacturers pressure spring washers. This, of course, reduces pressure to their hand squeezing issues, arthritis, or other finger disabilities when they need to reposition the slide gate porthole chute.
Brief Description Handle-Pivot-Fulcrum Control Type 2
FIG. 2
The embodiment for this control handle lever (DETAIL FIG. 4) is comprised of a straight handle (62), preferred to be, but not limited to six (6) inches long with a 90 degree shorter arm (58), preferred to be, but not limited to two 2 inches long in an (L) shaped configuration, where, at their axis point is a pivot bolt (64) that fastens the (L) shaped fulcrum handle lever (62) to the support shaft (27) at the drivers seat with a bolt, lock washer, nylon washer, and stop nut, which now creates a fulcrum lever to move heavy loads with less force. This embodiment, comprising of a straight handle with an (L) shaped arm, allows a longer length of twine-line to be pulled by the handle lever, because its shape enhances the travel path to produce a longer “throw” to move the slide gate (10) FIG. 2 position back and forth, but is not limited to a straight handle lever, without a 90 degree (L) shaped arm, having the same fulcrum pivot properties, in the same manner, so as to pull enough length of twine or wire to reposition slide gate chute (10). This fulcrum handle control (62) allows the driver to open and close the slide gate chute from the drivers' seat. It is this longer handle lever that they use to pull or release the twine-line that is connected through various pulleys, attached to the spreader, to move the spreaders handle lever (6) that moves the connecting rod (4) h a opens and closes the slide gate chute (10). The longer handle lever (62) that pivots, enables the driver to easily move, using fulcrum pivot physics, the shorter 90 degree arm, to pull and release the twine-line in a backwards and forwards movement to create more force to open and close the slide gate unit (10) with less applied effort,
The embodiment of the twine-line is preferred to be multiple stranded nylon twine, being thin, yet strong, to operate smoothly, with directional changes, through all the pulleys, but not limited to a cord, rope, sheathed cable, similar flexible line, or wire that can be pulled, pushed, or wound, and released by a pulley, through a loop, or pulled and pushed through a sheath to reposition the slide gate porthole chute. Further, because of the pressured spring-tens on washers, on these low-end models, it is sometimes necessary to simultaneously use two (2) small bungee cords, pulling parallel together, so to have enough pulling tension needed to force and pull the spreader handle lever (6), to move the closed porthole chute (9) back to open position (8). Moreover, pulling two bungee springs will be ne problem using fulcrum pivot mechanics.
Brief Description Handle-Pivot-Fulcrum Control Type 2
FIG. 2-A
The support shaft (27) is, bolted through the spreader plastic hopper with straps (28) bolts, lock washers and stop nuts, so that the handle control lever (62) is next to the driver's seat elbow without anything touching the pulling vehicle. The handle lever, DETAIL FIG. 4 (62) is pre-attached to the support shaft (27) and is facing upwards and the shorter arm (58) is resting on a stop pin (60) that is bolted through the support shaft (27) to prevent the short arm (68) from moving any further. The spreader mounted, handle lever (6) FIG. 2-A, on the tow bar frame (4 is being pulled back from the bungee cord (40) tension that is tied between handle lever (6) U-bolt (36) ring and over to the (L) bracket on the tow bar bolt (38). This FIG. 2A shows the slide gate unit (10) has an open porthole (8). Swivel pulley (30A) is attached to our support shaft (27) with a strap and is in line with swivel pulley (30B) which is fastened with a bolt, washer, and stop nut to the top of the spreader plastic hopper in line with handle lever (6) The kit hardware components are all attached.
Detailed Specifications of the Invention with Method of Operation
FIG. 2 Method Of Operation
Our installation manual will direct the user to open the flow rate setting (12) to its maximum open position and to place the control hand lever (62) at the drivers' seat, in a downward position FIG. 2-B. The lacing of the twine-line (48) begins where one end of the twine-line (48) is first tied off to a small hole (58A) DETAIL FIG. 4B, in the short 90 degree arm (58) attached to control handle (62). The twine-line (48) then continues through the shaft mounted pulley (30A) FIG. 2B then over to spreader mounted pulley (30B) and then over to our U-bolt clamp (36) rear facing (loop ring) on the spreaders handle (6). We then pull “tightly” on the twine-line (48) until the spreader handle lever (6) forces the connecting rod (4) to close the porthole chute (9) FIG. 2B and then tie off the twine-line (48) and cut it. “NOTE” the twine (48) has been pulled real tight now because the stop pin (80) is hitting the long control arm (62) FIG. 2B The only way the twine-line (48) can get enough slack to move backwards, to open the slide gate chute porthole (8), is when the operator lifts the control handle lever (62) upwards, which pivots the short arm (58) upwards as well, to release enough twine-line (48) to reposition the slide gate chute porthole to open (8) as is FIG. 2-A. It is this bungeecord (40) tension that pulls on the spreader handle lever (6) towards the pulling vehicle, that tugs on the twine-line to pull enough slack backwards, to open the slide gate chute (8) FIG. 2-A.
To simplify this operation FIG. 2-B The twine-line (48) was pulled tight and tied off between the spreader handle lever (6) and the operator control short pivot arm (58). There is no more twine slack. The slide gate connecting rod (4) cannot move back from the pulling force of the bungee cord (40) because the fulcrum pivot handle lever (62) has been (pinned) (60) to stop, thus the slide gate chute (9) stays closed without any further assistance from the operator. All twine lacing is complete.
Looking at FIG. 2A, the slide gate chute is open (8) and the fulcrum handle (62) is facing upwards. When the driver is ready to close the slide gate unit (10) from their seat, they push downward on the long, handed lever FIG. 2-B (62). The twine-line now starts pulling through single swivel pulley (30A) and (30B) and tugs on U-bolt (36) and (loop ring) clamped to spreader handle (6) and starts to force the connecting rod (4) connected to the slide gate unit (10) to push and move the slide gate porthole chute to close (9) FIG. 2-B. Once the small arm (58) pivots and passes the center of the support shaft (27) it hits the stop pin (60) again FIG. 4B. The arm (58) is now forced to stay in that position because the bungee cord (40) is pulling and applying tension on the twine. Thus the slide gate unit (10) stays in the closed (9) position without any further assistance from the driver. When the driver wants to open the slide gate porthole chute again FIG. 2A they move the handle lever (62) upward and the slack of the twine-line (48) pulls backwards because of the bungee cord (40) tension. The slack moving backwards, towards the spreader causes spreader handle lever (6) to move the opposite way and forces the slide gate porthole chute to open (8) as in FIG. 2-A. Moreover, handle lever (62), by applying fulcrum pivot physics properties, allows the driver to use less force to move a heavier load, that being, the heavy squeezing tension-washers installed by the manufacturer.
SUMMARY
All of the “original user installed kit” hardware embodiments and claims, consisting of: the support shaft, straps, L brackets, swivel pulleys, nylon twine, control disc, grab ball, and bungee cord remain the same, which enables the driver to open and close the spreader discharge chute from the driver's seat.
This (Continuation In Part) offers two (2) distinct and very important operator control improvements. That being, the use of fulcrum pivot mechanics, to aid the operator who may have been inflicted with a hand disorder and can no longer move the, control disc grab ball controller, due to heavy pressure caused by the manufactured springs, on some of the low end tow-behind spreader models. These two (2) fulcrum pivot hardware user-installed kits can be ordered NEW, or can be substituted to only replace our original grab-ball control disc, on their spreader, at a later date, if the operator experiences deficiencies in their hand and is unable to move past the tight spring pressure-washers, using our original grab ball control disc kit, on their original spreader, or, a “newer” model that they may have recently purchased. And, as claimed before, all of the kits are removable and reusable, with just a minor adjustment.
Further, the embodiment of these two user-installed fulcrum pivot controls will have the option of being fully attached to the support shaft, in a complete, originally ordered kit, or, be ordered separately, as an add-on, which includes the required hardware, “plus” an (added coupling) DETAIL FIG. 4 & FIG. 3, (72) to attach the fulcrum control unit they choose, to easily adapt and mount onto our original support shaft, to replace our original grab ball control disc model.
Sequence of Operation
Fulcrum “Pulley” Handle
FIG. 1-A The Control disc handle at the drivers' seat facing upwards (54) and the slide gate chute porthole is open (8). When the driver wants to close the slide gate porthole chute, and stop the flow of granular product, he merely pushes downward on the handed lever (54) forcing the fulcrum pulley (56) to pull the twine line (48C) downwards FIG. 1-B (clockwise rotation) which closes the slide gate porthole chute closed (9). The slide, gate porthole chute remains closed (9) and handle lever (54) remains in a downward position with no more assistance from the operator.
FIG. 1-B When to driver wants to open the slide gate chute porthole, and start the flow of granular product again, they merely pull upwards on the pulley fulcrum handle lever (54) forcing the fulcrum pulley (56) to pull the twine line (48D) upward FIG. 1-A (counter clockwise rotation) which pulls the spreader handle (6) towards the pulling vehicle, FIG. 1-A which pulls the connecting rod (4) to open the slide gate porthole chute to open (8), with no further assistance from the operator. Both stop pins (57A) and (57B) keep the fulcrum handle (56) from moving and over-rotating too far in both directions.
Thus, to simplify: with the “handle Up” the granular product flows. With the “Handle Down” the granular product flow is halted (stops).
Sequence of Operation
Fulcrum “Pivot” Handle
FIG. 2-A The fulcrum control handle lever at the drivers' seat is facing upwards (62) and the slide gate chute porthole is open (8). When the driver wants to close the slide gate porthole chute, and stop the flow of granular product, he merely pushes downward on the fulcrum handed lever (62) forcing the fulcrum handle lever (58) to pull the twine line (48) tied to the short arm hole (58A) forwards and downwards FIG. 2-B which pulls on the spreader handle lever (6) forcing the connecting rod (4) to close the slide gate porthole chute closed (9). The slide gate porthole chute remains closed (9) and handle lever (62) remains in a downward position. The stop pin (60) FIG. 2-B prevents the handle lever (62) from moving any further, in this downward position, and the short fulcrum arm (58) and the twine tie off (58A) stays in place and keeps the twine (48) taught without any further assistance from the operator.
FIG. 2-B When the driver wants to open the slide gate porthole, and start the flow of granular product again, he merely lifts upward on the handed lever (62) forcing the fulcrum handle short arm (58) to pull the twine line (48) tied to the hole (58A) up and around FIG. 2-A. This moves enough twine slack backwards towards the spreader and the slide gate porthole chute tis now open (8). The slide gate porthole chute remains open FIG. 1-A (8) and handle lever (62) remains in an upward position with no more assistance from the operator.
The stop pin (60) keeps the fulcrum handle (62) from moving too far in both directions. Thus, to simplify: with the “handle Up” the granular product flows. With the “Handle Down” the granular product flow is halted (stops).
FIG. 5, shows the spreader fastening details that are used in the self-installed kits.