This application relates generally to spreaders for de-icing materials, and more specifically, to a spreader cover having modular hard covers for a hopper, each modular hard cover secured to a grate on the hopper by either a linkage or a sliding mechanism, and optionally including an extended handle.
Spreaders for de-icing materials, such as salt, are critical for winter snow and ice removal. Spreaders typically include a hopper from which the de-icing material is distributed. The top of the hopper should ideally be covered in order to protect and preserve the de-icing material, as well as to prevent the de-icing material from spilling into the vehicle box upon which the spreader is placed. However, the cover must still allow the hopper to be re-filled with de-icing material as needed. Some known covers are cumbersome to remove and require an operator to climb onto the vehicle upon which the hopper is mounted, often in slippery winter conditions, in order to open the cover.
The present disclosure is directed to a spreader cover for a hopper of a spreader. The spreader cover is designed to be opened by an operator while the operator is standing on the ground. The spreader cover of the present disclosure requires very little effort to open and close. The spreader cover protects the de-icing material from the elements, and protects the vehicle bed and operator from spills of the de-icing material.
The spreader cover includes one or more modular hard covers. Each of the one or more modular hard covers may comprise a back side, an opening side, and two lateral sides. The back side is opposite the opening side. The back sides of two modular hard covers of the one or more modular hard covers may be adjacent to one another so that opening sides are provided on opposite sides of the hopper. This makes it possible for an operator to open the hopper from either side, without having to climb up on a truck tire or running board to reach the covers. The modular hard covers may be connected to one another. For example, if a lateral side of a first modular hard cover of the one or more modular hard covers is adjacent a lateral side of a second modular hard cover of the one or more modular hard covers, the adjacent lateral sides may be fastened to one another. In some cases, the adjacent lateral sides may have ridges provided for such fastening. An integral handle may be provided on the opening side of each modular hard cover to facilitate opening the modular hard cover.
The spreader may include a hopper having a width and a length for holding a de-icing material, a grate covering the hopper, a motorized spinner assembly for expelling the de-icing material from the hopper during spreading of the de-icing material, and a controller for controlling the spreading of the de-icing material. The modular hard covers may each have a width and a length, and they may be arranged such that a combined width of the one or more modular hard covers is equal to the width of the hopper and a combined length of the one or more modular hard covers is equal to the length of the hopper. Some modular hard covers may have edges modified to better fit on the hopper, such as by having a shape identical to the shape of the hopper. Some modular hard covers may include a detent configured to align with an edge of the hopper when the modular hard cover is in a closed position, thereby giving a user tactile and visual feedback to determine whether the modular hard cover is fully closed. In spreaders using slide mechanisms, the detent also keeps a slide plate of the slide mechanism from contacting the hopper, thereby preventing damage to the hopper.
Each of the modular hard covers may be opened using one of two opening mechanisms: a linkage or a slide mechanism. Each linkage or each slide mechanism is connected to one of the one or more modular hard covers. These mechanisms allow the modular hard covers to be opened with minimal effort.
Turning first to the linkages, each linkage includes a linkage mounting bracket securable to a grate provided on the hopper. In alternate embodiments not herein depicted, the linkage mounting bracket may be connected directly to the hopper. A first link connects the linkage mounting bracket to the modular hard cover to which the linkage is connected. Likewise, a second link connects the linkage mounting bracket to the modular hard cover to which the linkage is connected. A retaining pin is configured to secure the first link and the second link to the linkage mounting bracket.
The linkage mounting bracket may include a base having a first side having a first pin hole, a second side have a second pin hole aligned with the first pin hole, and a bottom plate. The bottom plate may have a width and a length that exceeds a width and a length of a grate hole in the grate of the hopper, thereby allowing the bottom plate to sit upon the grate without falling through the grate. The linkage mounting bracket may include at least one catch plate configured for attachment below the bottom plate and the grate when the linkage mounting bracket is secured to the grate. The catch plate may have a width that is less that the width of the grate hole so that it can be inserted through the hole when the linkage mounting bracket is placed upon the grate. The linkage mounting bracket may further include a top having a top plate, a first inclined side, and a second inclined side. The top may be secured on the first side and the second side of the base. The retaining pin may be configured for insertion in the first pin hole and the second pin hole. Once inserted, the retaining pin may be configured to secure the first link between the first side of the base and the first inclined side of the top and the second link between the second side of the base and the second inclined side of the top.
The first link of the linkage may be in tension, and the second link of the linkage may be in compression, when the linkage mounting bracket is connected to the hopper. In some arrangements, the first side and the second side of the base of the linkage mounting bracket may be parallel to the back side and the opening side of the modular hard cover when the linkage mounting bracket is secured to the grate. The first side of the base of the linkage mounting bracket may be closer to the back side of the modular hard cover than the second side of the base of the linkage mounting bracket. The first link may be identical in size and shape to the second link such that, due to locations at which the first link and the second link connect to the linkage mounting bracket, the first link connects closer to the back side of the modular hard cover than the second link.
Each of the one or more modular covers has a bottom that may be provided with a ridge. The ridge may have a first port for connection to the first link and a second port for connection to the second link. In some arrangements, the ridge is perpendicular to the back side and the opening side of each modular hard cover. A first recessed groove and a second recessed groove in the bottom of each modular cover may be provided. The first and second recessed grooves may run parallel to the back side and the opening side of the modular cover and may be provided adjacent the first port and the second port, respectively, to allow the first link to connect to the first port and the second link to connect to the second port.
An alternate manner of connecting the spreader cover to the hopper is using slide mechanisms. Turning now to the slide mechanisms, each slide mechanism may include a slide plate connected to one of one or more modular hard covers, the slide plate including a slide pathway. Each slide mechanism may further include a slide mounting bracket connected to the hopper, the slide mounting bracket including an upper bushing and a lower bushing. The slide mounting bracket may be connected to the hopper by being securable to a grate provided on the hopper. In other embodiments not herein depicted, the slide mounting bracket may be connected directly to the hopper. A wheel may be mounted on a pin, such as a clevis pin, in the upper bushing, and a roller may be mounted on a roller axle in the lower bushing. Each of the plurality of slide mechanisms is configured such that the wheel is slidable in the slide pathway of the slide plate while the roller is located below the slide plate. The roller may include, or be made entirely of, a low friction polymer in order to facilitate sliding of the slide plate against the slide mounting bracket.
The slide plate has sides lateral to the slide pathway, and the wheel may have a groove between inner surfaces of the wheel. The inner surfaces of the wheel may be configured to engage the sides of the slide plate. The slide mounting bracket may include a securement plate having one or more fastening apertures. The securement plate has a width and a length that exceeds a width and a length of a grate hole in the grate of the hopper so that can be placed atop the grate. The securement plate may also have a lower plate configured for attachment below the securement plate and the grate when the slide mounting bracket is secured to the grate. The slide plate may include a first slide aperture and a second side aperture in the sides lateral to the slide pathway. Each of the one or more modular hard covers has a bottom, and a ridge may be provided on the bottom of each of the plurality of hard covers. The ridge may be connected to the first side aperture and the second side aperture in the sides lateral to the slide pathway.
The slide plate may include an upper attachment plate that may be connected to the bottom of one of the one or more modular hard covers. The slide plate may also include an opening end attachment plate, the opening end attachment plate connected to one of the modular hard covers near the opening side of the modular hard cover.
Installation and removal of a modular hard cover using the slide mechanism is straightforward and does not require any tools. The modular hard cover being installed or removed is positioned on its back side. The wheel of the slide mounting bracket is inserted into the slide pathway of the slide plate, and the pin holding the wheel in place is inserted. The pin may, for example, be a clevis pin.
Another feature that the spreader cover may include is an extended handle assembly. The extended handle assembly extends the reach of a controller to facilitate opening and closing the spreader cover. Even shorter spreader operators can easily open the spreader cover using the extended handle assembly because the extended handle assembly extends the reach of an operator by up to 18 inches. The extended handle assembly has an opening position and closing position, and for both the opening and closing positions the extended handle projects outwardly from the side of the vehicle in which the spreader is mounted. The extended handle assembly also has a rotating position in which an extended handle of the extended handle assembly can be rotated inward toward the side of the vehicle and closer to the hopper. The extended handle may be secured to the side of the vehicle using a bracket or other connection means when in the rotating position. The extended handle is secured away from the hopper when in an opening or closing position so that rotation is not possible. The extended handle assembly prevents the extended handle from rotating when it is in the opening or closing position so that, if an operator forgets or chooses not to rotate and secure the extended handle in a bracket on the vehicle, the extended handle will not inadvertently rotate from the opening or closing position and slam into the outer panel of a truck bed on the vehicle body (for example, when the hopper is being refilled with salt or sand, which may fall and exert a downward force on the extended handle).
The extended handle assembly may include a handle bracket connected to one of the one or more modular hard covers and an extended handle connected to the handle bracket. The handle bracket includes a multi-positioning recess and a handle aperture within the multi-position recess. The extended handle includes an extension plate and a grab bar connected to the extension plate, the extension plate securable by a fastener to the handle aperture of the handle bracket. The multi-position recess of the handle bracket has a recess longitudinal axis and a closing portion, rotating portion, and opening portion along the longitudinal axis. The extension plate of the extended handle may include a raised portion through which the fastener is secured. The extended handle may be positioned in an opening position when any of the raised portion is in the opening portion of the multi-position recess, a rotating position when all of the raised portion is in the rotating portion of the multi-position recess, and a closing position when any of the raised portion is in the closing portion of the multi-position recess. The opening portion and the closing portion of the multi-position recess are configured such that the extended handle is unable to rotate in the opening and in the closing position.
Specifically, the multi-position recess may have a recess length along the recess longitudinal axis, a closing width at the closing portion, a rotating width at the rotating portion, and an opening width at the opening portion. The raised portion of the extension plate of the extended handle has a raised portion length along a raised portion longitudinal axis that is less than the recess length and the rotating width but greater than the closing width and opening width. The result is that the raised portion is able to rotate in the rotating portion because its length is less than the recess length and the rotating width of the rotating portion. However, the raised portion is not able to rotate in the opening and closing positions because its length is greater than the closing width and opening width, and therefore does not have enough space to turn within the opening and closing portions.
The handle aperture within the multi-position recess has a handle aperture length along a handle aperture longitudinal axis. The fastener of the extension plate as a fastener length that is less than the handle aperture length. This arrangement allows the fastener of the extension plate to slide within the handle aperture along the handle aperture longitudinal axis, permitting the raised portion to move between the opening, rotating, and closing positions.
The handle bracket may further include a material egress hole within the multi-position recess. The material egress hole allows salt or sand or other debris caught within the recess to be removed so as to ensure proper functioning of the extended handle assembly. The extension plate may have a length of up to 18 inches so as to accommodate shorter operators. In the embodiments shown in the drawings, the extended handle assembly includes a first handle bracket and a second handle bracket, the first handle bracket secured to a first one of the one or more modular hard covers and the second handle bracket secured to a second one of the one or more modular hard covers. In the embodiments shown in the drawings, the handle extension includes a first extension plate and a second extension plate, the first extension plate secured to the first handle bracket and the second extension plate secured to the second handle bracket. However, the extended handle assembly may be configured to connect to only one or more than two modular hard covers, and the extended handle assembly may include only one or more than two handle brackets and extension plates.
Although the following text sets forth a detailed description of one or more exemplary embodiments of the invention, it should be understood that the legal scope of the invention is defined by the words of the claims set forth at the end of this patent. The following detailed description is to be construed as exemplary only and does not describe every possible embodiment of the invention, as describing every possible embodiment would be impractical, if not impossible. Numerous alternative embodiments could be implemented, using either current technology or technology developed after the filing date of this patent, and such alternative embodiments would still fall within the scope of the claims defining the invention.
As shown in
Turning to
The first link 16 is in tension when the linkage mounting bracket 12 is secured to the grate 14 of the hopper 4 of the spreader 2, while the second link 18 is in compression when the linkage mounting bracket 12 is secured to the grate 14 of the hopper 4 of the spreader 2. As shown in
As shown in
The spreader cover 6 includes extended handle assemblies 102. Each extended handle assembly 102 includes a handle bracket 104 and an extended handle 106. Each extended handle 106 includes at least one extension plate 112 and a grab bar 114 connected to the extension plate. The extended handle assemblies 102 are configured to move between an opening position wherein the extended handle 106 is secured away from the hopper 4, a rotating position wherein the extended handle 106 may rotate to be secured closer to the hopper 4, and a closing position wherein the extended handle 106 is secured away from the hopper 4. The extended handle assemblies 102 are configured such that the extended handle 106 is unable to rotate in the opening position and the closing position. In
As illustrated in
As further illustrated in
The wheel 140 has a groove 152 between inner surfaces 154 of the wheel 140. The inner surfaces 154 of the wheel 140 are configured to engage the sides 150 of the slide plate 130. The slide mounting bracket 134 includes a securement plate 156. The securement plate 156 has a width Wsp and a length Lsp that exceed the width Wg and a length Lg of grate holes 70 of grate 14 so that the securement plate 156 can be placed atop grate 14. The slide mounting bracket 134 also includes a lower plate 168 configured for attachment below the securement plate 156 when the slide mounting bracket 134 is secured to the grate 14. Alternately, the slide mounting bracket 134 may include one or more catch plates 34 as described above with respect to the linkage mounting bracket 12.
While various embodiments have been described herein, it will be understood that variations may be made to these embodiments that are still considered within the scope of the appended claims.
This application claims the benefit of the filing date of U.S. Provisional Appl. No. 62/471,282, filed Mar. 14, 2017, which is hereby incorporated by reference.
Filing Document | Filing Date | Country | Kind |
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PCT/US18/22352 | 3/14/2018 | WO | 00 |
Number | Date | Country | |
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62471282 | Mar 2017 | US |