Material pusher with improved structure
A pusher for snow or other material includes a blade including a front surface for moving material and an opposite rear surface, and upper and lower edges. A wiper is secured to the lower edge of the blade. Left and right sidewalls are connected to opposite sides of the blade. The sidewalls are each arranged transverse to the blade and define chain-engaging apertures. Left and right skid-shoe assemblies are connected respectively to the left and right sidewalls and slidably support the blade above a surface to be cleared. A plurality of cross-supports are connected to the rear surface of the blade and extending between the left and right sidewalls. A coupler structure is connected to the rear face of the pusher and defines a pick-up location adapted to be engaged by an associated pusher-moving machine for operative connection of the blade to the pusher-moving machine.
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This application claims priority from and benefit of the filing date of U.S. provisional application Ser. No. 60/529,801 filed Dec. 16, 2003 and U.S. provisional application Ser. No. 60/578,169 filed Jun. 9, 2004.
BACKGROUNDPusher devices for clearing snow and other materials (e.g., manure, mud, etc.) from a roadway, runway, parking lot or-other surface are well-known and in widespread use. These known devices include a blade that is fixed or foldable and some means for operatively and temporarily securing the blade to a wheel-loader, skid-steer tractor, wheel-loader backhoe, or other machine used to move the pusher.
Known pushers are deficient for a wide variety of reasons. In many cases, the pushers have a structure that is difficult to manufacture, high-weight, and prone to damage during use, with weak spots and stress-concentration zones. Known pushers have not used vertical ribs cut from plates to tie the horizontal structural members together. Known pushers also have not used such vertical ribs to define the coupler portion of the pusher and, instead, have used posts that are merely connected to the pusher without being integrated into the overall structure.
Some pushers use bolts to connect the skid-shoe assemblies to the blade without providing any shear protection for the bolts. Many known pushes include deficient sidewall support gussets that trap material and/or that are not robustly attached to the sidewall and/or blade. Known pushers include coupler portions defined from hollow post structures that are not integrated into the overall structure of the pusher and that decrease visibility.
Known pushers are prone to tip rearward when not in use (e.g., during a decoupling operation) which renders storage unsafe and unsightly and that complicates re-coupling.
Conventional pusher devices also are designed for the wiper to contact and clear the underlying surface even when the pusher is not properly oriented on the surface, which leads to uneven wear of the skid-shoe assemblies without any indication to the operator that the pusher is not properly oriented.
Known folding pushers have been deemed suboptimal for a wide variety of reasons. Some require complex hydraulic systems for the folding and/or locking operations. Others rely on locking mechanisms that are overly complex or that are prone to damage and/or loss of components.
SUMMARYIn accordance with the present development, a pusher includes: a blade including a front surface for moving material and an opposite rear surface, and upper and lower edges; a wiper secured to the lower edge of the blade; left and right sidewalls connected to opposite sides of the blade, said sidewalls each arranged transverse to the blade; left and right skid-shoe assemblies connected respectively to the left and right sidewalls, said left and right skid-shoe assemblies cooperating with each other to slidably support the blade above a surface to be cleared; a plurality of cross-supports connected to the rear surface of the blade and extending between the left and right sidewalls; a coupler structure comprising: (i) a plurality of coupler ribs that are connected to and extend between at least some of the cross-supports; and, (ii) a pick-up location adapted to be engaged by an associated pusher-moving machine for operative connection of the blade to the associated pusher-moving machine.
In accordance with another aspect of the present development, a fixed-angle pusher for moving material laterally when said pusher is moved forwardly in an operative direction of movement comprises: a blade including a front surface for moving material and an opposite rear surface, and upper and lower edges; a wiper secured to the lower edge of the blade; left and right sidewalls connected to opposite sides of the blade and arranged parallel to the direction of operative movement, said sidewalls each arranged transverse to the blade, wherein said second sidewall trails said first sidewall with respect to the direction of operative movement, and wherein said first sidewall projects outwardly from said front surface of said blade more than said second sidewall projects outwardly from said front surface of said blade; left and right skid-shoe assemblies connected respectively to the left and right sidewalls, said left and right skid-shoe assemblies cooperating with each other to slidably support the blade above a surface to be cleared; a plurality of cross-supports connected to the rear surface of the blade and extending between the left and right sidewalls; a coupler structure comprising: (i) at least one wedge-shaped coupler plate connected to and projecting outwardly from one of said cross-supports; (ii) a plurality of first and second coupler ribs that are connected to said at least one wedge-shaped coupler plate, said first and second coupler ribs defining a pick-up location adapted to be engaged by an associated pusher-moving machine for operative connection of the blade to the associated pusher-moving machine, wherein a distance between said pick-up location and said blade decreases as a distance between said pick-up location and said second sidewall decreases.
In accordance with another aspect of the present development, a pusher comprises: a blade including a front surface for moving material and an opposite rear surface, and upper and lower edges; a wiper secured to the lower edge of the blade; left and right sidewalls connected to opposite sides of the blade, said sidewalls each arranged transverse to the blade; left and right skid-shoe assemblies connected respectively to the left and right sidewalls, said left and right skid-shoe assemblies cooperating with each other to slidably support the blade above a surface to be cleared; a plurality of cross-supports connected to the rear surface of the blade and extending between the left and right sidewalls; a coupler structure comprising: (i) a plurality of coupler ribs that are connected to and extend between at least two of the cross-supports; and, (ii) a pick-up location adapted to be engaged by an associated pusher-moving machine for operative connection of the blade to the associated pusher-moving machine, said pick-up location comprising an open slot adapted to receive a bucket lip.
In accordance with a further aspect of the present development, a pusher comprises: a blade including a front surface for moving material and an opposite rear surface, and upper and lower edges; a wiper secured adjacent the lower edge of the blade; left and right sidewalls connected to opposite sides of the blade, said sidewalls each arranged transverse to the blade; left and right skid-shoe assemblies connected respectively to the left and right sidewalls, said left and right skid-shoe assemblies cooperating with each other to slidably support the blade above a surface to be cleared; a coupler structure projecting outwardly from the rear surface of the blade and defining a pick-up location adapted to be engaged by an associated pusher-moving machine for operative connection of the blade to the associated pusher-moving machine; and, at least one chain-engaging aperture defined in each of the left and right sidewalls, said at least one chain-engaging aperture of each sidewall comprising a first region adapted to receive and allow passage of an associated chain and a second region adapted to engage and retain the associated chain for selectively fixedly securing the pusher to an associated pusher-moving machine.
In accordance with another aspect of the present development, a pusher comprises: a blade including a front surface for moving material and an opposite rear surface, and upper and lower edges; a wiper secured adjacent the lower edge of the blade; left and right sidewalls connected to opposite sides of the blade; left and right skid-shoe assemblies connected respectively to the left and right sidewalls, said left and right skid-shoe assemblies cooperating with each other to slidably support the blade above a surface to be cleared; a coupler structure operatively connected to the blade and defining a pick-up location adapted to be engaged by an associated pusher-moving machine for operative connection of the blade to the associated pusher-moving machine; and, wherein the left and right sidewalls comprise respective left and right sidewall flanges projecting outwardly therefrom and wherein said left and right skid-shoe assemblies are abutted with the left and right sidewall flanges and are connected to the left and right sidewalls by bolts, respectively, so that at least some impact forces on said left and right skid-shoe assemblies are transferred to said left and right sidewalls through said left and right sidewall flanges, respectively, to protect said bolts from shearing forces.
In accordance with a further aspect of the present development, a pusher comprises: a blade including a front surface for moving material and an opposite rear surface, and upper and lower edges; a wiper secured adjacent the lower edge of the blade; left and right sidewalls connected to opposite sides of the blade, said sidewalls each arranged transverse to the blade; left and right skid-shoe assemblies connected respectively to the left and right sidewalls, said left and right skid-shoe assemblies cooperating with each other to slidably support the blade above a surface to be cleared; a coupler structure operatively connected to the blade and defining a pick-up location adapted to be engaged by an associated pusher-moving machine for operative connection of the blade to the associated pusher-moving machine; wherein said left and right skid-shoe assemblies each comprise a wear-shoe having a primary portion that slidably supports the blade above a surface to be cleared, and wherein the sidewalls comprise upper edges that are parallel to the primary wear-shoe portions of the left and right skid-shoe assemblies, respectively, to provide a visual indication to an operator as to the orientation of the primary wear-shoe portions.
BRIEF DESCRIPTION OF DRAWINGSThe development comprises various structures and components and arrangements of same, preferred embodiments of which are disclosed with reference to the accompanying drawings wherein:
First and second (left and right) sidewalls S1,S2 are located at opposite lateral ends of the blade D and project forwardly outward from the front surface DF thereof and also project in the rearward direction outwardly from rear surface DR of blade D. In the illustrated example, the sidewalls S1,S2 are parallel to each other and are vertically oriented, assuming the pusher P is operatively resting on a horizontal surface. The blade also D includes upper and lower edges DU,DL that extend laterally between the sidewalls parallel to each other.
The first and second sidewalls S1,S2 include respective first and second (left and right) removable skid-shoe assemblies H1,H2 that support the pusher P for sliding movement on a surface Z (
First and second gussets G1,G2 (
The rear surface DR of the blade D is reinforced with a plurality of parallel cross-supports such as a first (top), second (middle) and third (lower) cross-supports X1,X2,X3 (see e.g.,
With particular reference now to
Chains are secured between the bucket or other part of the associated pusher-moving machine and the sidewalls S1,S2 by insertion of the chains into one or more of the chain-engaging apertures N1,N2,N3 of sidewalls S1,S2 of pusher. At least some of the coupler rib plates CR define plain apertures N that allow respective chains or chain strands or hooks to pass therethrough to facilitate use of the chains to connect the pusher P to the associated pusher-moving machine. As shown separately in
With brief reference to
The coupler structure 200C of the pusher 200P comprises three separate coupler structures, each defined by at least three spaced-apart upper coupler ribs CR0,CR1,CR2,CR3 and three corresponding lower coupler ribs CR0′,CR1′,CR2′,CR3′. As shown, the coupler structure comprises: (i) a main coupler structure C; (ii) a left coupler structure LC; and, (iii) a right coupler structure RC; each defining its own pick-up location such as a portion of slot L. Each coupler structure C,LC,RC is adapted to be engaged by an associated pusher-moving machine. The coupler structure C allows the pusher 200P to be symmetrically coupled to the pusher-moving machine; the coupler structure LC allows the pusher 200P to be coupled to the pusher-moving machine with a right offset relative; and the coupler structure RC allows the pusher 200P to be coupled to the pusher-moving machine with a left offset. The offset coupling is often desired when the pusher 200P must be used to clear snow or other material from beneath an overhang that will not accommodate the pusher-moving machine.
Referring again to the pusher P shown in
With reference to
It is intended that the central portion HS1 of each skid shoe assembly H1,H2 be positioned flat on the surface Z being cleaned as shown in
If desired, the skid shoe assemblies H1,H2 can be used as part of another, conventional pusher as a replacement part by connection respective adapter brackets K1,K2 thereto as shown in
As noted, the blade sections D1,D2,D3 are defined by dividing the blade D of pusher P into three separate sections. As such, each section comprises the relevant portion of the structure of the blade D described above. Thus, for example, the coupler C (or 100C) is connected to the second (central) section D2. Each section D1-D3 comprises an upper edge DU, a lower edge DL, and the first, second and third cross-supports X1,X2,X3, along with ribs R1,R2 as shown. Because the blade sections D1,D2,D3 are defined by dividing the blade D of pusher P as described, the wiper W′ (
As shown in
The pusher P′ comprises first and second fold-locks FL1,FL2 to retain the first and third blade sections D1,D3, respectively, in either their opened or closed positions independently from each other. The structure and operation of the fold-locks FL1,FL2 is easily understood with reference to
The fold-lock FL2 is shown in
The inner wall V1b of the right blade section D3 defines a T-shaped slot 210 having an upper enlarged portion 210e and a reduced portion 210r. The enlarged portion 210e is dimensioned and conformed so as to slidably accommodate the lock bar 202 when the blade section D3 pivots from the unfolded to the folded position and when the lock bar 202 is in the raised position. The lock bar 202 defines first and second reduced-width neck portions 202n1,202n2 that are dimensioned for close receipt in the reduced portion 210r of the T-shaped slot 210. As shown in
To fold the right blade D3 relative to the central blade D2, the lock bar 202 is raised vertically on pin 204 to its unlocked position so that it is moved into the enlarged portion 210e of T-shaped slot 210 of wall V1b where it is slidably accommodated so as to allow pivoting movement of the right blade section D3 via hinge HG2. Upon full folding movement of the blade section D3, the T-shaped slot 210 is moved into alignment with the second neck portion 202n2 of the lock bar 202 so that the lock bar can be lowered vertically with its second neck portion 202n2 received into the reduced-width portion 210r of the T-shaped slot 210. In this case, the wall V1b is unable to move in either direction (toward or away from wall V2b) so as to lock the blade section D3 in its folded position.
The inner end 202a of the lock bar protrudes from yoke structure 204y a distance sufficient to facilitate manual grasping of the inner end 202a by a user for purposes of lifting/lower the lock bar. The outer end 202b of the lock bar 202 defines an enlarged head 202h for the same purpose and, also, the head 202h is unable to pass through the T-shaped slot 210 in wall V1b for any possible vertical position of the lock bar 202 so that the head 202h provides a stop for folding movement of the blade section D3.
With reference to
As noted, the fold-lock FL1 is structured and operates in a corresponding fashion. As such, corresponding components shown in
The open-lock OL2 is shown in
The sidewalls S1,S2 are locked to each other to maintain the pusher P″ in its folded position as desired for storage and/or transport as shown in
The pushers P,P′,P″,100P comprise sidewall gussets G1,G2 for strengthening the connection between the sidewalls S1,S2 and blade D or, in the case of the folding pushers P′,P″, between the sidewalls S1,S2 and the respective blade sections D1,D3. Sidewall gussets G1,G2 can vary in size depending upon the size and type and expected application for the pusher.
The gusset G2 is shown in
It should also be noted that the folding pusher P′ preferably also comprises gussets G3,G4,G5,G6 (
The pusher 300P comprises a coupler structure C′ that is adapted to be engaged by an associated pusher-moving machine. In the illustrated embodiment, the coupler structure 300C comprises a plurality of upper (first) ribs 302 and lower (second) ribs 304 that define therebetween a slot 300L adapted for insertion of a bucket lip or other part of the associated pusher-moving machine to thus define a pick-up location. Chains are then used to secure the pusher 300P to the machine, by engagement of the chains in the keyhole-shaped chain-engaging apertures N1,N2,N3 defined in sidewalls S1,S2′.
The blade D is connected to coupler structure 300C at an angle to encourage lateral movement of the snow or other material being pushed. In the illustrated embodiment, this is accomplished by use of at least one and preferably first and second parallel wedge-shaped coupler plates 306a,306b that are welded to an project outwardly from the second cross-support X2. The upper and lower coupler ribs 302,304 are connected respectively to the wedge-shaped coupler plates 306a,306b so that the distance from the slot 300L (or other pick-up location) to the blade D is reduced closer to sidewall S2′ and increased closer to sidewall S1. First braces 308 extend between and interconnect the upper coupler ribs 302 to the first cross-support X1, and second braces 310 extend between and interconnect the lower coupler ribs 304 to the third cross-support X3.
The present development has been described with reference to preferred embodiments. Modifications and alterations will occur to those of ordinary skill in the art to which the invention pertains, and it is intended that the claims be construed as encompassing all such modifications and alterations to the maximum possible extent according to the following claims as construed literally and/or according to the doctrine of equivalents.
Claims
1. A pusher comprising:
- a blade including a front surface for moving material and an opposite rear surface, and upper and lower edges;
- a wiper secured to the lower edge of the blade;
- left and right sidewalls connected to opposite sides of the blade, said sidewalls each arranged transverse to the blade;
- left and right skid-shoe assemblies connected respectively to the left and right sidewalls, said left and right skid-shoe assemblies cooperating with each other to slidably support the blade above a surface to be cleared;
- a plurality of cross-supports connected to the rear surface of the blade and extending between the left and right sidewalls;
- a coupler structure comprising: (i) a plurality of coupler ribs that are connected to and extend between at least some of the cross-supports; and, (ii) a pick-up location adapted to be engaged by an associated pusher-moving machine for operative connection of the blade to the associated pusher-moving machine.
2. The pusher as set forth in claim 1, wherein said coupler structure comprises a plurality of coupler ribs that extend between and interconnect at least two of the cross-supports wherein said pick-up location comprises an open slot defined by said coupler ribs, said slot adapted to receive a bucket lip.
3. The pusher as set forth in claim 2, further comprising a plurality of chain-engaging apertures defined in each of the left and right sidewalls, each chain-engaging aperture adapted to receive and selectively retain an associated chain used for retaining the pusher to an associated pusher-moving machine.
4. The pusher as set forth in claim 2, wherein said cross-supports comprise first, second and third cross-supports, and wherein:
- said coupler ribs each extend between and interconnect the first and second and third cross-supports.
5. The pusher as set forth in claim 4, wherein:
- said first, second and third cross-supports are arranged parallel to each other; and,
- said coupler ribs are arranged parallel to each other and perpendicular to said first, second and third cross-supports.
6. The pusher as set forth in claim 4, wherein the coupler ribs are interconnected to each other by a first and second cross-bars each spaced outwardly from the rear surface of the blade, and wherein said first and second cross-bars are located on opposite sides of said open slot.
7. The pusher as set forth in claim 6, wherein the coupler ribs are each defined from planar sections of steel plate.
8. The pusher as set forth in claim 4, further comprising:
- a first set of reinforcement ribs each connected to and extending between the first and second cross-supports; and,
- a second set of reinforcement ribs each connected to and extending between the second and third cross-supports.
9. The pusher as set forth in claim 1, further comprising:
- left and right sidewall gussets connected between the front surface of the blade and the left and right sidewalls, respectively, said sidewall gussets each comprising a chisel-shaped body comprising a sloped face and first and second sidewalls.
10. The pusher as set forth in claim 9, wherein the left and right sidewall gussets are each defined as a one-piece construction from a bent steel plate.
11. The pusher as set forth in claim 1, wherein the left and right sidewalls comprise respective sidewall flanges projecting outwardly therefrom and wherein said left and right skid-shoe assemblies each comprise a rib and a wear-shoe connected to the rib, said ribs of said left and right skid-shoe assemblies connected to and abutted with the sidewall flanges of the left and right sidewalls, respectively.
12. The pusher as set forth in claim 11, wherein the rib of each skid-shoe assembly comprises an upper edge that lies parallel to a primary portion of the wear-shoe connected to the rib, said primary wear-shoe portion adapted to lie flat on and slidably support the blade above a surface being cleared, wherein said sidewall flanges of the left and right sidewalls are abutted with the upper edge of the ribs of the left and right skid-shoe assemblies, respectively.
13. The pusher as set forth in claim 12, wherein, for both the left and right skid-shoe assemblies, the primary wear-shoe portion extends rearwardly outward relative to the rear surface of the blade to a terminal location that is spaced from said wiper sufficiently so that said terminal location is vertically with or outwardly beyond the pick-up location of the coupler structure.
14. The pusher as set forth in claim 13, wherein the terminal location of the wear-shoe of each of the left and right skid-shoe assemblies is spaced at least 12 inches from the wiper.
15. The pusher as set forth in claim 1, wherein said left and right skid-shoe assemblies each comprise a wear-shoe having a primary portion that slidably supports the blade above a surface to be cleared, and wherein the sidewalls comprise upper edges that are parallel to the primary wear-shoe portions of the left and right skid-shoe assemblies, respectively, to provide a visual indication to an operator as to the orientation of the primary wear-shoe portions.
16. The pusher as set forth in claim 1, wherein said blade comprises first, second and third blade sections, said first blade section pivotally connected to a first lateral side of the second blade section and the third blade section pivotally connection to a second lateral side of the second blade section, wherein said left and right sidewalls are connected respectively to the first and third blade sections and said coupler structure is connected to said second blade section.
17. The pusher as set forth in claim 16, further comprising:
- a first fold-lock for holding the first blade section in a first or second position relative to the second blade section, wherein said first and second blade sections are aligned with each other in the first position and angled relative to each other in the second position; and,
- a second fold-lock for holding the third blade section in a first or second position relative to the second blade section, wherein said second and third blade sections are aligned with each other in the first position and angled relative to each other in the second position.
18. The pusher as set forth in claim 17, wherein:
- the first fold-lock comprises a first lock bar connected to the second blade section and movable between raised and lowered positions, said first lock bar, when in said lowered position, engaging and preventing pivoting movement of the first blade section relative to the second blade section, said lock bar allowing pivoting movement of the first blade section relative to the second blade section when in its raised position; and,
- the second fold-lock comprises a second lock bar connected to the second blade section and movable between raised and lowered positions, said second lock bar, when in said lowered position, engaging and preventing pivoting movement of the third blade section relative to the second blade section, said lock bar allowing pivoting movement of the third blade section relative to the second blade section when in its raised position.
19. The pusher as set forth in claim 16, further comprising:
- first and second open-locks connected to the second blade section and adapted for selectively capturing the first and third blade sections, respectively, when the first and third blade sections are pivoted into alignment with the second blade section; and,
- a fold-lock having a first portion connected to the left sidewall and a second portion connected to the right sidewall, wherein said first and second portions of the fold-lock are selectively engageable with each other when said first and third blade sections are pivoted relative to the second blade section into opposed facing relation with each other.
20. The pusher as set forth in claim 1, wherein the plurality of coupler ribs comprise first and second JRB-style coupler ribs that are connected to and extend between at least some of the cross-supports, wherein the first and second JRB-style coupler ribs cooperate to define said pick-up location as a female portion of a JRB-style quick coupler.
21. The pusher as set forth in claim 1, wherein said coupler structure comprises three separate coupler structures and wherein said pick-up location comprises three different pick-up locations defined respectively by said three separate coupler structures, wherein said three separate coupler structures are each defined by at least three of said plurality of coupler ribs
22. A fixed-angle pusher for moving material laterally when said pusher is moved forwardly in an operative direction of movement, said pusher comprising:
- a blade including a front surface for moving material and an opposite rear surface, and upper and lower edges;
- a wiper secured to the lower edge of the blade;
- left and right sidewalls connected to opposite sides of the blade and arranged parallel to the direction of operative movement, said sidewalls each arranged transverse to the blade, wherein said second sidewall trails said first sidewall with respect to the direction of operative movement, and wherein said first sidewall projects outwardly from said front surface of said blade more than said second sidewall projects outwardly from said front surface of said blade;
- left and right skid-shoe assemblies connected respectively to the left and right sidewalls, said left and right skid-shoe assemblies cooperating with each other to slidably support the blade above a surface to be cleared;
- a plurality of cross-supports connected to the rear surface of the blade and extending between the left and right sidewalls;
- a coupler structure comprising: (i) at least one wedge-shaped coupler plate connected to and projecting outwardly from one of said cross-supports; (ii) a plurality of first and second coupler ribs that are connected to said at least one wedge-shaped coupler plate, said first and second coupler ribs defining a pick-up location adapted to be engaged by an associated pusher-moving machine for operative connection of the blade to the associated pusher-moving machine, wherein a distance between said pick-up location and said blade decreases as a distance between said pick-up location and said second sidewall decreases.
23. The fixed-angle pusher as set forth in claim 22, wherein the left and right sidewalls comprise respective sidewall flanges projecting outwardly therefrom and wherein said left and right skid-shoe assemblies each comprise a rib and a wear-shoe connected to the rib, said ribs of said left and right skid-shoe assemblies connected to and abutted with the sidewall flanges of the left and right sidewalls, respectively.
24. The fixed-angle pusher as set forth in claim 23, wherein the rib of each skid-shoe assembly comprises an upper edge that lies parallel to a primary portion of the wear-shoe connected to the rib, said primary wear-shoe portion adapted to lie flat on and slidably support the blade above a surface being cleared, wherein said sidewall flanges of the left and right sidewalls are abutted with the upper edge of the ribs of the left and right skid-shoe assemblies, respectively.
25. The fixed-angle pusher as set forth in claim 22, further comprising a plurality of chain-engaging apertures defined in each of the left and right sidewalls, each chain-engaging aperture adapted to receive and selectively retain an associated chain used for retaining the pusher to an associated pusher-moving machine.
26. A pusher comprising:
- a blade including a front surface for moving material and an opposite rear surface, and upper and lower edges;
- a wiper secured to the lower edge of the blade;
- left and right sidewalls connected to opposite sides of the blade, said sidewalls each arranged transverse to the blade;
- left and right skid-shoe assemblies connected respectively to the left and right sidewalls, said left and right skid-shoe assemblies cooperating with each other to slidably support the blade above a surface to be cleared;
- a plurality of cross-supports connected to the rear surface of the blade and extending between the left and right sidewalls;
- a coupler structure comprising: (i) a plurality of coupler ribs that are connected to and extend between at least two of the cross-supports; and, (ii) a pick-up location adapted to be engaged by an associated pusher-moving machine for operative connection of the blade to the associated pusher-moving machine, said pick-up location comprising an open slot adapted to receive a bucket lip.
27. A pusher comprising:
- a blade including a front surface for moving material and an opposite rear surface, and upper and lower edges;
- a wiper secured adjacent the lower edge of the blade;
- left and right sidewalls connected to opposite sides of the blade, said sidewalls each arranged transverse to the blade;
- left and right skid-shoe assemblies connected respectively to the left and right sidewalls, said left and right skid-shoe assemblies cooperating with each other to slidably support the blade above a surface to be cleared;
- a coupler structure projecting outwardly from the rear surface of the blade and defining a pick-up location adapted to be engaged by an associated pusher-moving machine for operative connection of the blade to the associated pusher-moving machine; and,
- at least one chain-engaging aperture defined in each of the left and right sidewalls, said at least one chain-engaging aperture of each sidewall comprising a first region adapted to receive and allow passage of an associated chain and a second region adapted to engage and retain the associated chain for selectively fixedly securing the pusher to an associated pusher-moving machine.
28. A pusher comprising:
- a blade including a front surface for moving material and an opposite rear surface, and upper and lower edges;
- a wiper secured adjacent the lower edge of the blade;
- left and right sidewalls connected to opposite sides of the blade;
- left and right skid-shoe assemblies connected respectively to the left and right sidewalls, said left and right skid-shoe assemblies cooperating with each other to slidably support the blade above a surface to be cleared;
- a coupler structure operatively connected to the blade and defining a pick-up location adapted to be engaged by an associated pusher-moving machine for operative connection of the blade to the associated pusher-moving machine; and,
- wherein the left and right sidewalls comprise respective left and right sidewall flanges projecting outwardly therefrom and wherein said left and right skid-shoe assemblies are abutted with the left and right sidewall flanges and are connected to the left and right sidewalls by bolts, respectively, so that at least some impact forces on said left and right skid-shoe assemblies are transferred to said left and right sidewalls through said left and right sidewall flanges, respectively, to protect said bolts from shearing forces.
29. A pusher comprising:
- a blade including a front surface for moving material and an opposite rear surface, and upper and lower edges;
- a wiper secured adjacent the lower edge of the blade;
- left and right sidewalls connected to opposite sides of the blade, said sidewalls each arranged transverse to the blade;
- left and right skid-shoe assemblies connected respectively to the left and right sidewalls, said left and right skid-shoe assemblies cooperating with each other to slidably support the blade above a surface to be cleared;
- a coupler structure operatively connected to the blade and defining a pick-up location adapted to be engaged by an associated pusher-moving machine for operative connection of the blade to the associated pusher-moving machine;
- wherein said left and right skid-shoe assemblies each comprise a wear-shoe having a primary portion that slidably supports the blade above a surface to be cleared, and wherein the sidewalls comprise upper edges that are parallel to the primary wear-shoe portions of the left and right skid-shoe assemblies, respectively, to provide a visual indication to an operator as to the orientation of the primary wear-shoe portions.
Type: Application
Filed: Dec 16, 2004
Publication Date: Jun 16, 2005
Applicant:
Inventor: Ray Fatemi (Fairlawn, OH)
Application Number: 11/014,038