Temporary turf marking system
10017904 ยท 2018-07-10
Inventors
Cpc classification
E01C13/00
FIXED CONSTRUCTIONS
International classification
Abstract
A temporary turf marking system is disclosed. The temporary turf marking system includes a material spreader, the material spreader having a foam dispenser fixed thereto. A dispenser actuator actuates the foam dispenser, such that foam is dispensed from the dispenser onto the turf, forming a foam trail.
Claims
1. An automated grass marking system comprising: a manual push spreader; a handle fixed to the manual push spreader; at least two wheels, rotatably fixed to the manual push spreader; a foam dispenser adjustably fixed to the manual push spreader, wherein the foam dispenser is configured to translate from a first position on a left side of the manual push spreader to a second position on a right side of the manual push spreader; an automated dispenser actuator which actuates the foam dispenser such that foam is automatically dispensed from the dispenser onto the grass, forming an intermittent foam trail; and a switch connected to the automated dispenser actuator, wherein the switch controls the power provided to operate the automated dispenser actuator.
2. The automated grass marking system of claim 1, wherein the foam dispenser is refillable.
3. The automated grass marking system of claim 1, wherein the foam dispenser is positioned off-centered with respect to the manual push spreader.
4. The automated grass marking system of claim 3, wherein the foam dispenser is not positioned in a walking path of the manual push spreader.
5. The automated grass marking system of claim 4, wherein the foam dispenser is not positioned in line with either of the two wheels.
6. The automated grass marking system of claim 1, wherein the foam trail visually dissipates after about 5 minutes from being dispensed from the foam dispenser.
7. The automated grass marking system of claim 1, further comprising: an alignment rod attached to the manual push spreader and extending from the manual push spreader in a lateral direction, the alignment rod being attached to the manual push spreader such that the alignment rod can pivot with respect to the manual push spreader.
8. The automated grass marking system of claim 1, wherein the foam dispenser is configured to operate at a first location with respect to the manual push spreader and then at a second location with respect to the manual push spreader.
9. The automated grass marking system of claim 1, wherein the manual push spreader is a broadcast or orbital style spreader.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) The features and advantages of the disclosure will become apparent from a consideration of the subsequent detailed description presented in connection with the accompanying drawings in which:
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DETAILED DESCRIPTION
(29) For the purposes of promoting an understanding of the principles in accordance with the disclosure, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the disclosure is thereby intended. Any alterations and further modifications of the inventive features illustrated herein, and any additional applications of the principles of the disclosure as illustrated herein, which would normally occur to one skilled in the relevant art and having possession of this disclosure, are to be considered within the scope of the disclosure claimed.
(30) It must be noted that, as used in this specification and the appended claims, the singular forms a, an, and the include plural referents unless the context clearly dictates otherwise.
(31) In describing and claiming the present disclosure, the following terminology will be used in accordance with the definitions set out below.
(32) As used herein, the terms comprising, including, containing, characterized by, and grammatical equivalents thereof are inclusive or open-ended terms that do not exclude additional, unrecited elements or method steps.
(33) Applicant has discovered a novel system, apparatus and method for temporarily marking grass turf with a material spreader. The disclosed system, method and apparatus provides a temporary marking system that produces a visible mark where a material or fertilizer spreader has dropped the corresponding material. The disclosed marking system dispenses a series of discrete portions of soap foam, or other desired foam marker, such that the discrete portions of foam are deposited onto a lawn or turf surface. The foam or foam marker can also include, for example shaving cream, foamed milk or any other foam or foam-like material that may be visible for a limited time duration and then dissipate from view. Additionally, the foam marker may also include other materials that may be visible for only a limited duration, such as powder-like material. The foam remains visible on the surface of the turf for an amount of time sufficient to allow a user or operator to complete another pass of spreader (in an opposition direction), and then the foam disappears.
(34) Experimentation has shown that foam can be light enough to sit on top and remain on top of the turf or grass. The foam can take about 5 to 10 minutes to dissipate or disappear, so that it can no longer be seen on the grass. The amount of soap required in a soap-water solution to make foam is very small, which has the added benefit of making the foam more environmentally compatible and less damaging or potentially damaging to the turf.
(35) The foam dispensing may be continuous, although a continuous stream of foam is not needed to adequately mark the turf. Efficient foam deposition onto the turf, for the purpose of aiding in the tracking or guiding of the fertilizer or material application can be dispensed in discrete amounts spaced between 3 to 6 feet apart, or at another desired interval. By spacing the foam at these intervals, a marking system for a 10,000 square foot lawn can be accomplished with approximately one liter or one quart of a foam soap solution which makes the system more cost effective and environmentally safe.
(36) The foam marker can be dispensed by a mark or foam dispenser which is positioned on the spreader such that the foam is dispensed behind the spreader during use. The dispenser can also be positioned on the spreader such that the dispensed foam can indicate to the operator where to align the spreader for a next pass of the spreader, ensuring proper coverage of the desired material or fertilizer, without inadvertently missing or overlapping sections of lawn or turf.
(37) As a first example, if the foam dispenser is positioned to deposit the foam marker directly behind, or inline with, a wheel of the spreader, the operator can then use the manufacturer's provided alignment markings on the spreader to align with the deposited foam marker. In a second example, the foam dispenser can be positioned to deposit the foam marker directly behind the manufacturer's provided alignment markings on the spreader, and the operator can then align the wheel of the spreader with the deposited form marker. Either, or both, of these examples can enable the operator to ensure ample proper coverage of the desired spreading material without missing portions of turf or excessively overlapping spreading material.
(38) This foam marker configuration and dispensing prevents the foam from transferring any moisture to a drop mechanism of the spreader which would cause the material or fertilizer to clump and evenly distribute. This configuration also facilitates a slight, but desirable, overlap for the material or fertilizer on each pass. Alternatively, the foam marker dispenser could deposit foam in the middle of the spreader, for example on a broadcast or orbital-type spreader. Conventional broadcast spreaders often recommend a 5 to 7 foot spacing between passes.
(39) In the disclosed embodiments, the foam dispenser can combine a solution of soap and water with air to produce the foam. The foam dispenser is configured to provide or enable rapid or repeated discrete distributions of foam.
(40) The disclosed method of temporarily marking turf includes providing a temporary marking system where discrete and intermittent foam marks can be dispensed onto a turf surface manually, mechanically, or electronically. A manual marking system can include a user holding a foam dispenser and manually activating the dispenser in intermittent sequence dispensing foam behind a wheel of a spreader or in the middle of the spreader, or mounting a foam dispenser to a spreader and then running a cable actuator (similar to a cable actuator used to control a throttle on a lawn mower) to the dispenser and then intermittently activating the dispenser by initiating the actuator, dispensing foam onto the turf. The frequency or intervals of dispensing the foam may be modified or customized according to the discretion of the operator.
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(42) The foam dispenser assembly 2 can be mounted to the spreader 1 via a bracket 3. The bracket 3 can be fixed to a side of the spreader 1, or alternatively, the bracket 3 can be attached to the back of the spreader 1, an operator handle, or to a stand of the spreader 1. A foam dispenser 4 is mounted and fixed to the bracket 3. The foam dispenser 4 includes a pump actuator 5, used to dispense foam within the dispenser 4. Different foam soap dispensers could also be used, for example, a top discharge or bottom discharge dispenser, using a foam container utilizing a bag or bottle (not shown). Additionally, the foam dispenser 4 may be refillable, permitting a user to refill the foam dispenser 4 at any desired time during, before, or after use.
(43) A mechanical cam 6 can be mounted to a wheel 9 of the spreader 1. The spreader 1 includes at least 2 wheels 9, but could also include additions wheel in other configurations not shown in the figures. The cam 6 can be any number of profiles, but disclosed cam 6 has a circular profile. An actuator arm 8 can be attached to the cam 6 in a non-concentric position via a bushing or joint 7. As the wheel 9 rotates, a reciprocating motion is provided to the actuator arm 8. By controlling the mounting point of the actuator arm 8 with respect to the center of the wheel 9, the amount of travel for the actuator arm 8 can be defined. The actuator arm 8 is positioned through an opening in the mounting bracket 3 and actuates the pump actuator 5.
(44) As the actuator arm 8 moves the pump actuator 5, foam is discharged out the bottom of the dispenser 4 and onto a lawn or turf surface. The distance between discrete portions of foam on the turf can be defined by the diameter of the wheel 9 on the spreader 1. Alternatively, a separate wheel with a different diameter could be used to reciprocate the actuator arm 8, or a gearing system could also be used to vary the distance between the discrete foam portions.
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(46) When the switch 20 is turned on, the motor 16 automatically and continuously rotates. The cam 17, which is mechanically engaged to the motor 16 rotates with the motor 16. The shape and design of the cam 17 can be varied to suit the designer, but for this configuration, the cam 17 is a fast rise design to minimize the time to actuate the dispenser 12 and elongate the dwell time for the dispenser 12. A disadvantage of a cycloid cam (circular cam with offset) is that the cycloid cam may not actuate the dispenser 12 fast enough and the foam may not dispense in even, discrete portions, but instead barely come out of the nozzle and deposit onto the bottle instead of clearing the bottle and depositing on the lawn or turf.
(47) The amount of offset in the cam 17 determines the amount of lift or cam travel. With the cam 17 rotating, the cam follower 18 follows the profile of the cam 17. The cam follower 18 pivots about a bearing surface 21. As the cam 17 rotates, the cam follower 18 moves up and down. As the cam follower 18 moves up and down, the pump 22 of the dispenser 12, is pushed up and down, thus activating the dispenser 12 and discharging foam through the dispenser nozzle 23 and onto the grass or turf.
(48) The dispensing or application route for spreading the material or fertilizer can vary between operators. Some operators may prefer to go around the lawn or turf in the same direction, while others may prefer to go in straight line segments such as back and forth. The above disclosed turf marking system can accommodate someone that desires to go around the lawn in the same direction; however, it would not accommodate someone who desires to go back and forth, due to the dispenser 12 being located on the left side of the spreader 1.
(49) The embodiment shown in
(50) There are two foam dispensers 27a, one in each foam dispensing assembly 27, each fixed on opposite sides of the system 24. A cover for the foam assembly 27 on the near side has been removed to show the moving parts. Electrical power for actuating the foam dispensers 27a is provided by the battery pack 29. A toggle switch 28 is mounted on a handle of the spreader 23 so that an operator can control the power provided to the foam dispenser 27a either on the right side of the left side. A center position on the toggle switch 28 is provided to turn off power to both dispensers 27a.
(51) A tube 26 supplies the foam solution from the reservoir 25 to the corresponding foam dispensers 27a. The dispensers 27a are actuated by a cam follower 27b that is driven by a cam 27c which is driven by an electric motor, similar to motor 16 in
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(54) In some configurations, when foam solution is stored above a dispenser, the foam solution may tend to siphon through the dispenser when the motor and actuator are turned off. To prevent this siphoning, the container or reservoir for can be located even with, or below the corresponding dispenser or dispensers.
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(56) The embodiment shown in
(57) The dispensers 47 are actuated by a cam actuation device 48 that includes a cam follower 48 that is driven by a cam 48b which is driven by an electric motor similar to motor 16 in
(58) As shown in
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(60) The embodiment shown in
(61) However, as opposed to the embodiment shown in
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(63) Another embodiment of the current disclosure includes using one foam dispenser and enable that dispenser move from one side to the other side using a mechanism configured to facilitate the foam dispenser to translate back and forth along the spreader.
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(65) The shuttle 80 also includes a handle 81 which contains a power source for the motor and an on-off switch 84 which controls power to the motor. The spreader includes a mounting platform, upon which the shuttle 80 is mounted, that includes a pair of mechanical stops 83, one on each of the left and right sides of the spreader. The purpose of the stops 83 is to provide a mechanical stop for the shuttle 80 to maintain a desired and predetermined position on either the left side or on the right side of the spreader. A shuttle rail 82 is also mounted on the mounting platform and is formed as a round linear shaft. The shuttle rail is used as a track to allow the shuttle 82 to translate from the right side and left side positions. The shuttle also enables a user to keep the foam trail out of the walking path of the user, preventing the user from inadvertently walking through the foam trail and causing the foam trail to prematurely dissipate or disappear.
(66) The shuttle 80 includes a circular bearing surface that engages with and rides on the shuttle rail 82. The bearing surface does extend around the entire shuttle rail 82, but goes beyond center to lock the shuttle onto the shuttle rail 82.
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(68) The first benefit of the shuttle's 80 rotatability is that the shuttle 80 rotates down beyond the surface of the mechanical stop 83, which can prevent the shuttle 80 from moving from beyond the desired locked position. When the shuttle 80 is then moved by the operator to the opposite side, the operator lifts the handle 81, rotating the shuttle 80 above the mechanical stop 83 and then the shuttle 80 can be translated to the opposite end by sliding along the shuttle rail 82.
(69) As discussed above, the reservoir 85 for the foam solution and with a corresponding cap 86 for the reservoir 85 is similar to the embodiments discussed above, but particularly similar to the embodiment disclosed in
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(71) Moving, or cranking, one of the pair of arms 96 can in turn move the foam dispensing system 91 which is attached to the pair of arms 96. By using a parallelogram 93 (composed of the pair of arms 96) to control the movement of the foam dispensing system 91, the dispensing of the foam can always occur in the desired direction of the spreader path. A single arm 96 can also be used to rotate the foam dispensing system 91.
(72) The velocity of the foam as it is dispensed from the foam dispenser 97 can alter the placement and deposition of the foam on the turf or grass, it becomes harder to facilitate the correct overlap for each pass. However, a foam dispenser could be used that discharges foam at an angle that is perpendicular to the turf or grass allowing the foam trail to be in line with the fertilizer or material being spread, regardless of the velocity of the foam as it is dispensed from the foam dispenser 97.
(73) A reservoir 92 can contain foam solution to be used by the foam dispenser 97. The reservoir 92 can also be refillable, which can allow a user to refill the reservoir 92 with foam solution at any desired time. The isometric view shows that there is a gap underneath the reservoir 92 allowing for the pair of arms 96 to move, unimpeded from side to side. A cap 95 is also provided for the reservoir 92. The tube connection from the foam dispenser 97 to the cap 95 is not shown.
(74) A support bracket 94 is used to fix the foam dispensing system 91 to the spreader. The structural shape of the support bracket 94 can configured to accommodate various sizes and styles of material spreaders. The support bracket 94 is mounted so that it is substantially horizontal to the turf or grass and can swing underneath a stand for the spreader as shown in
(75) It is to be understood that the above-described arrangements are only illustrative of the application of the principles of the present disclosure. Numerous modifications and alternative arrangements may be devised by those skilled in the art without departing from the spirit and scope of the present disclosure are intended to cover such modifications and arrangements. Thus, while the present disclosure has been shown in the drawings and described above with particularity and detail, it will be apparent to those of ordinary skill in the art that numerous modifications, including, but not limited to, variations in size, materials, shape, form, function and manner of operation, assembly and use may be made without departing from the principles and concepts set forth herein.