WO2016109681A1 - Outil de levage de lame - Google Patents

Outil de levage de lame Download PDF

Info

Publication number
WO2016109681A1
WO2016109681A1 PCT/US2015/068086 US2015068086W WO2016109681A1 WO 2016109681 A1 WO2016109681 A1 WO 2016109681A1 US 2015068086 W US2015068086 W US 2015068086W WO 2016109681 A1 WO2016109681 A1 WO 2016109681A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade
riser
lift tool
pin
blade lift
Prior art date
Application number
PCT/US2015/068086
Other languages
English (en)
Inventor
Rodney LEACH
Original Assignee
Leach Rodney
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Leach Rodney filed Critical Leach Rodney
Publication of WO2016109681A1 publication Critical patent/WO2016109681A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B1/00—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor
    • B62B1/26—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor characterised by supports specially adapted to objects of definite shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B1/00—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor
    • B62B1/02—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the wheel axis is disposed between the load and the handles
    • B62B1/04—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the wheel axis is disposed between the load and the handles involving parts being adjustable, collapsible, attachable, detachable, or convertible
    • B62B1/042—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the wheel axis is disposed between the load and the handles involving parts being adjustable, collapsible, attachable, detachable, or convertible foldable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B1/00—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor
    • B62B1/02—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the wheel axis is disposed between the load and the handles
    • B62B1/06—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the wheel axis is disposed between the load and the handles involving means for grappling or securing in place objects to be carried; Loading or unloading equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/06—Hand moving equipment, e.g. handle bars
    • B62B5/067—Stowable or retractable handle bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2202/00—Indexing codes relating to type or characteristics of transported articles
    • B62B2202/48—Tools

Definitions

  • This invention relates to devices which can move heavy industrial equipment, in particular motor grader blades.
  • Embodiments of the present invention provide a blade lift tool that does not suffer from the problems and limitations of the prior art lift mechanisms set forth above.
  • a first aspect of the present invention concerns a blade lift tool configured to selectively lift and move a road grader blade.
  • the blade lift tool broadly includes a wheeled bottom member, a handle, and an upright adjustable riser.
  • the wheeled bottom member is configured to support the road grader blade and permits rolling movement of the blade lift tool.
  • the handle is spaced above the bottom member and is configured to be grasped by a user to control the blade lift tool.
  • the riser is attached to the bottom member and the handle and extends therebetween.
  • the riser includes elongated upper and lower riser sections and a hinged joint that connects the riser sections, with the hinged joint permitting the upper riser section to swing relative to the lower riser section.
  • the riser includes a locking element removably engaged with at least one of the riser sections to restrict relative hinged movement between the riser sections, with the locking element being removable to selectively permit swinging of the upper riser section.
  • a second aspect of the present invention concerns a method of installing a road grader blade onto the blade body of a road grader blade assembly.
  • the method broadly includes the steps of removably attaching a blade lift tool to the road grader blade, moving the blade lift tool to position the road grader blade adjacent to the blade body, and shifting a center riser of the blade lift tool from an upright configuration to a bent configuration to reduce the height of the blade lift tool.
  • Figure (Fig.) 1 is a perspective view of an embodiment of the invention shown in use (without a blade);
  • Fig. 2 is a perspective view of an embodiment of the invention
  • Fig. 3 is a perspective view of an embodiment of the invention.
  • Fig. 4 is an exploded view of an embodiment of the invention, showing the detachable blade-engaging members
  • Fig. 5 is a detailed exploded view of the detachable blade-engaging member, with pin and blade stop;
  • Fig. 5a is a close-up view of the pin in Fig. 5;
  • Fig. 6 is a detailed view of the hinged joint and support member
  • Fig. 7 is a detailed view of the hinged joint in the bent configuration
  • Fig. 8 is a detailed view of the hinged joint and an exploded view of the support/locking member
  • Fig. 9 is a detailed view of the hinged joint and assembled support/locking member
  • Fig. 10 is a detailed view of the hinged joint and assembled support/locking member with locking pin
  • Fig. 11 is a cross-sectional view of lower shaft 50b, taken along line 11 in Fig. 2;
  • Fig. 12 is a cross-sectional view of stabilizing member taken along line 12 in Fig. 4;
  • Fig. 13 is a perspective view of a second embodiment of the invention, showing an adjustable riser that interconnects a bottom member and handle bar;
  • Fig. 14 is a fragmentary perspective of the adjustable riser shown in Fig. 13, showing the riser secured in an upright configuration;
  • Fig. 15 is a fragmentary perspective of the adjustable riser similar to Fig. 14, but showing an upper riser section swung downwardly from the upright configuration and secured in a first bent configuration by a locking member, an adjustment pin, and a locking pin;
  • Fig. 16 is a fragmentary perspective of the adjustable riser similar to Fig. 15, but showing the upper riser section swung further downwardly from the first bent configuration and secured in a second bent configuration by the locking member, adjustment pin, and locking pin; and
  • Fig. 17 is a side view of a locking member shown in Figs. 13-16.
  • Embodiments of the present invention overcome many of the obstacles associated with moving a motor grader blade (not shown) and installing the motor grader blade onto a motor grader blade assembly (not shown), and now will be described more fully hereinafter with reference to the accompanying drawings that show some, but not all embodiments of the claimed inventions. Indeed, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements. Like numbers refer to like elements throughout.
  • the motor grader blade is installed as part of the motor grader blade assembly (not shown), which also includes a generally curved blade body (not shown).
  • the curved blade body presents a plurality of bolt holes (not shown) spaced along a lower margin of the body.
  • the motor grader blade presents a plurality of bolt holes (not shown) spaced along an upper margin of the blade.
  • the motor grader blade is attached to the blade body so that the blade projects downwardly from the blade body.
  • the blade is attached by aligning the bolt holes of the motor grader blade with the bolt holes of the blade body and inserting multiple bolts through the aligned bolt holes to secure the motor grader blade and the blade body to one another.
  • Fig. 1 shows the invention in use.
  • User 48 desires to move a motor grader blade with blade lift tool 10.
  • surfaces described below which face the user are referred to as “rear” surfaces, whereas surfaces facing away from the user are “front” surfaces.
  • terms such as “upper,” “lower,” “bottom,” “top,” etc. may be used to describe the relative position of certain structures. Such descriptions should not be taken as limiting on the invention.
  • Blade lift tool 10 is configured to be removably attached to the motor grader blade.
  • Blade lift tool 10 comprises handle bar 12 connected to center riser 16.
  • the handle 12 can further comprises safety grips 14.
  • the handle bar 12 can be mechanically coupled (permanently or temporarily/detachably) to the center riser 16.
  • Center riser 16 is an elongated shaft 50 mechanically coupled to U-shaped bottom member 20.
  • center riser 16 comprises detachable first and second elongated shafts 50a, 50b, connected by a hinged joint 52 and support/locking member 54, as shown in Figs. 2-4.
  • the upper shaft 50a is connected to the handle bar 12.
  • the upper shaft 50a comprises a distal end 50a' remote from the handle bar 12.
  • the lower shaft 50b is connected to the U-shaped bottom member 20.
  • the lower shaft 50b is hollow and comprises a distal end 50b' remote from the U-shaped bottom member 20.
  • the lower shaft distal end 50b' is tapered and comprises aligned bolt holes 55 therethrough.
  • the lower shaft 50b comprises double-walled tubing.
  • the lower shaft comprises an interior sidewall 50b 1 that fits inside of an exterior sidewall 50b 2 . Both sidewalls are connected or mechanically coupled to the U-shaped bottom member 20.
  • the interior sidewall 50b 1 extends away from the U-shaped member 20 and past the distal end of the exterior sidewall 50b 2 (e.g., by about 3 inches), and the exterior sidewall 50b 2 distal end is coupled to the interior sidewall 50b 1 (e.g., by welding) via a beveled edge to thereby cooperatively form the "taper" of the lower shaft distal end 50b', so that it will fit inside the upper shaft distal end 50a' .
  • the upper shaft distal end 50a' is substantially hollow and defines a hollowed out portion (female portion) configured for receiving the tapered lower shaft distal end 50b' (male portion), and further comprises aligned bolt holes (not visible) therethrough positioned to align with the bolt holes in the tapered lower shaft distal end 50b', when the tapered lower shaft distal end 50b' is inserted into the hollowed out upper shaft distal end 50a' .
  • a bolt 56 is inserted through the aligned bolt holes to couple the upper shaft 50a to the lower shaft 50b in a hinged engagement, such that the upper shaft 50a can be moved about the hinged joint 52 as shown in Fig. 7.
  • Any suitable bolt-type shaft configured to permit rotation could be used.
  • a bolt pin 56a is used in combination with a set screw collar 56b, retaining ring, cotter pin, or other suitable fastener system.
  • a support member 54a is coupled to the rear face 51b of the lower shaft distal end 50b', and extends past the distal end 50b' of the lower shaft 50b to limit the movement (hinged bending) of the upper shaft 50a.
  • At least a portion of the rear face 51a of the hollowed out portion of the upper shaft 50a is removed (cut away) to define a void 58, such that when the upper shaft 50a is bent about the hinged joint 52, the support member 54a is received within this void 58, and the interior surface (not visible) of the front face 53a of the hollowed out portion optionally rests on the support member 54a.
  • the upper shaft 50a hollowed out portion comprises aligned pin holes 60 therethrough.
  • the support member further comprises aligned pin holes 62 therethrough configured to align with the upper shaft 50a hollowed out portion when the support member 54a is received within the void 58.
  • a locking pin 63 is inserted through the aligned pin holes to detachably couple the upper shaft 50a to the support member 54a in the bent position.
  • the range of motion of the upper shaft 50a about the hinged joint 52 is limited to a pre-defined angle ( ⁇ 55°-60°, preferably about 58°), and can be further secured using the locking pin 63 to maintain the integrity and strength of the center riser 16 to lock the hinged joint 52 into the bent configuration.
  • the support/locking member 54 further comprises a locking member 54b configured to be received in the support member 54a, as shown in Fig. 8.
  • the support member 54a is substantially hollow and defines a hollowed out portion or sleeve.
  • the locking member 54b comprises a tapered male end 66 having aligned pin holes 67 and configured to be inserted into the support member 54b, wherein the male end 66 pin holes 67 align with the support member pin holes 62.
  • the locking member 54b further comprises an enlarged head 68 configured to limit the depth of insertion of the male end 66 by resting on the support member 54a in the inserted position, as shown in Fig. 9.
  • the enlarged head 68 may be substantially hollow, and the top opening may optionally be capped using an appropriate seal, such as rubber cap.
  • the locking pin 63 is inserted into the aligned pin holes 62, 67 to detachably secure the locking member 54b to the support member 54a, as shown in Fig. 10. It will be appreciated that the same locking pin 63 can be used. That is, it is removed from the aligned pin holes 60, 62 detachably coupling the upper shaft 50a to the support member 54a in the bent position, the shaft 50 is straightened, and after insertion of the locking member 54b, the locking pin 63 is inserted into the aligned pin holes 62, 67 of the locking member 54b and support member 54a. As shown in Figs.
  • the head 68 of the locking member 54b when inserted, the head 68 of the locking member 54b extends past the hollowed out void 58 of the upper shaft 50a, such that it rests against the rear face 51a of the upper shaft 50a. This this way, it prevents the upper shaft 50a from bending backwards around the hinge 52, and as such, locks the upper 50a and lower 50b shafts into the straightened configuration.
  • the locking/support member 54 also absorbs some of the force exerted on the center riser 16 and hinged joint 52 when the tool is in use, such that the load is dispersed along the length of the shaft 50 and not focused solely on the hinged joint 52. Accordingly, undue stress on the hinged joint 52 is avoided.
  • the center riser 16 can be selectively shifted between the bent and straightened configurations to permit convenient moving and/or installation of the motor grader blade.
  • the height of the blade lift tool 10 is reduced. For instance, when moving the motor grader blade underneath the overhanging structure supporting the blade body, it may be preferred (or even necessary) to lower the height of the blade lift tool 10 by shifting the center riser 16 into the bent configuration (so that movement and/or installation of the motor grader blade is not restricted by the overhanging structure).
  • the lower shaft 50b is connected to a U- shaped bottom member 20, and preferably is coupled to the bend of the U-shaped member 20, and is substantially centered thereon.
  • the U-shaped bottom member 20 can be of any suitable configuration, including round tubing as depicted.
  • the U-shaped bottom member 20 is further connected to first tire 42 and second tire 42.
  • U-shaped bottom member 20 (not shown) is additionally connected to bracing member 18.
  • Bracing member 18 can be of any suitable configuration, including, for example, square tubing as depicted. Bracing member 18 is connected to the U-shaped bottom member 20 at the distal end of the arms 20a, 20b of the U- shaped member 20.
  • Bracing member 18 comprises an elongated shaft aligned substantially perpendicularly to the shaft of the center riser 16. That is, the center riser 16 extends substantially vertically between the handle 12 to the bend of the U-shaped bottom member 20, and the bracing member 18 shaft 70 extends substantially horizontally between the arms 20a, 20b of the U-shaped member 20, and extends beyond each arm of the U-shaped member 20 to terminate in respective free ends 70a, 70b.
  • bracing member 18 is permanently coupled to a first and second blade stop 24 positioned at the free ends 70a and 70b of the bracing member 18, as depicted in U.S. Patent No. 8,505,934.
  • first and second blade-engaging members 72 are configured to slidably (and removably) engage bracing member 18 in some embodiments so that the tool 10 can be figured for different blade bolt patterns.
  • a first blade-engaging member 72 is configured to slide over a free end 70a of the bracing member 18, such that the free end 70a is received within the first blade- engaging member 72, as seen in Fig. 3.
  • the position of the first blade-engaging member 72 is adjustable along the length of the bracing member 18, extending between the free end 70a to the connection point with the U-shaped member arm 20a. As seen more clearly in Fig. 5, the position of the first blade-engaging member 72 can be locked into place using a screw 74 inserted into the blade-engaging member 72 such that it frictionally engages the bracing member 18 and steadies the position of the blade-engaging member 72.
  • the first blade-engaging member 72 further comprises a first blade stop 24 which is (threadably) connected to first pin 28 with first optional washer 34 and first nut 36 as shown in Fig. 5.
  • the first blade-engaging member 72 is configured to be removably attached to the motor grader blade by removably inserting the first pin 28 into a first one of the bolt holes of the motor grader blade.
  • the first blade-engaging member 72 can be selectively detached from the motor grader blade by removing the first pin 28 from the first bolt hole of the motor grader blade. It will be understood that, for some aspects of the present invention, the first blade-engaging member 72 could have an alternative mechanism to attach to the motor grader blade.
  • the first pin 28 is tapered and comprises a free end having a first notch 30a terminating in an end ridge 31, and a second notch 30b opposite the first notch 30b.
  • the second notch 30b is defined by an intermediate ridge 33 on the backside of the pin body, as illustrated.
  • the first and second notches 30a and 30b are distal to the threaded end 32 of the pin 28.
  • First notch 30a is an anti-slip notch that will prevent a motor grader blade from falling off blade lift tool 10 by giving a place for a portion of the blade to sit.
  • the second notch 30b includes intermediate ridge 33, which holds the blade in place when the blade is tipped upwards for installation.
  • a second blade-engaging member 72 is configured to slide over a free end 70b of the bracing member 18, such that the free end 70b is received within the second blade- engaging member 72.
  • the position of the second blade-engaging member 72 is adjustable along the length of the bracing member 18, extending between the free end 70b to the connection point with the U-shaped member arm 20b.
  • the position of the second blade-engaging member 72 can be locked into place using a screw 74 inserted into the blade-engaging member 72 such that it frictionally engages the bracing member 18 and steadies the position of the blade-engaging member 72.
  • the second blade-engaging member 72 further comprises a second blade stop 24 which is (threadably) connected to second pin 28 with second optional washer 34 and second nut 36 as shown in Fig. 5.
  • the second blade-engaging member 72 is configured to be removably attached to the motor grader blade by removably inserting the second pin 28 into a second one of the bolt holes of the motor grader blade spaced horizontally from the first bolt hole.
  • the second blade-engaging member 72 can be selectively detached from the motor grader blade by removing the second pin 28 from the second bolt hole of the motor grader blade. It will be understood that, for some aspects of the present invention, the second blade-engaging member 72 could have an alternative mechanism to attach to the motor grader blade.
  • the second pin 28, like the first pin 28 is tapered and comprises a free end having a second notch 30.
  • Second notch 30 is an anti-slip notch that will prevent a motor grader blade from falling off blade lift tool 10 by giving a place for a portion of the blade to sit.
  • the pins 28 assist with vertically lifting and positioning a blade received on the tool.
  • U-shaped bottom member 20 is further connected to first tire 42 and second tire 42.
  • First tire 42 is mechanically coupled to first wheel 40 which is further mechanically coupled to axel 38.
  • First wheel hub 22 can be mechanically coupled to axel 38 as shown in Fig. 4.
  • Axel 38 is further mechanically coupled to second wheel hub 22.
  • Second wheel hub 22 is mechanically coupled to second tire 42 which is further mechanical coupled to second wheel 40 in a well-known manner.
  • first wheel hub 22 and second wheel hub 22 are both mechanically coupled to U-shaped member 20.
  • Axel 38 slides through first wheel hub 22 where it is mechanically coupled to first tire 42 by first wheel retainer 44 and first wheel retainer set screw 46.
  • axel 38 slides through second wheel hub 22 where it is mechanically coupled to second tire 42 by second wheel retainer 44 (not shown) and second wheel retainer set screw 46.
  • FIG. 5 shows first pin 28 in more detail.
  • bottom first blade-engaging member 72 is configured to slide over a free end 70a of the bracing member 18.
  • First blade- engaging member 72 further comprises a first blade stop 24.
  • First blade stop 24 comprises first hole 26.
  • First pin 28 comprises first notch 30 and first threaded portion 32.
  • a user mechanically couples first pin 28 to first blade stop 24 by inserting first threaded portion 32 into first hole 26 and completing the mechanical couple by using first washer 34 and first nut 36 in a well-known manner.
  • Second blade-engaging member 72 is similarly configured and further comprises a second blade stop 24.
  • Second blade stop 24 comprises second hole 26.
  • Second pin 28 comprises second notch 30 and second threaded portion 32.
  • a user mechanically couples second pin 28 to second blade stop 24 by inserting second threaded portion 32 into second hole 26 and completing the mechanical couple by using second washer 34 and second nut 36 in a well-known manner.
  • a stabilizing member 76 is connected to bracing member 18.
  • stabilizing member 76 extends in substantially parallel alignment with bracing member 18 between distal end of the arms 20a, 20b of the U-shaped member 20. More particularly, stabilizing member 76 extends in continuous contact and connection with bracing member 18 along its length, as measured between distal end of the arms 20a, 20b of the U-shaped member 20, but is not necessarily directly connected to the U-shaped member 20 (e.g., by connecting to the arms 20a, 20b).
  • Stabilizing member 76 comprises an elongated tube member and a substantially L-shaped angle iron attached to bracing member 18 at the top, with an opening that extends below the plane defined by the bracing member 18, such that the stabilizing member opening is configured to receive a portion of the blade therein as the blade slides underneath the bracing member 18 when the tool is in use.
  • the stabilizing member 76 assists with lifting and moving the blade horizontally (e.g., when wheeling the tool).
  • a variable pin, screw, or the like 78 is threaded or inserted down through an opening 80 in the top of the angle iron (e.g., through a boss thread, fitting, or other opening), and is configured to frictionally engage the blade received in the opening.
  • a screw is an ideal option because the position of the screw is variable depending on the shape, height, etc. of the blade in the opening, and permits stabilization of the blade through frictional engagement without requiring a precise alignment or position.
  • blade lift tool 10 To use blade lift tool 10, user 48 maneuvers blade lift tool 10 to a motor grader blade.
  • the center riser 16 can be placed in the straight or bent configuration as described in detail above, depending on the blade shape.
  • the first and second blade-engaging members 72 can be positioned along bracing member 18 depending upon the bolt pattern of the blade.
  • the blade lift tool 10 is configured to be removably attached to the motor grader blade by inserting the first and second pins 28 into corresponding bolt holes of the motor grader blade.
  • User 48 then tilts blade lift tool 10 to partially raise the motor grader blade. Once raised, user 48 locates the blade onto the first pin 28 and second pin 28 as explained above, to allow for easy centering and handling of the motor grader blade.
  • first notch 30 and second notch 30 against the back side of the motor grader blade by pulling back on handle 12 to rotate the blade lift tool 10, which moves the blade lift tool 10 about axel 38 until the motor grader blade is safely aligned against first notch 30 and second notch 30.
  • user 48 can maneuver the motor grader blade to the desired location (e.g., adjacent to the blade body of the road grader blade assembly).
  • a user can align the motor grader blade with the blade body of the motor grader blade assembly so that the bolt holes of the motor grader blade are aligned with the bolt holes of the blade body.
  • the user can insert bolts (not shown) through the aligned bolt holes to at least partly secure the road grader blade onto the road grader blade assembly.
  • the user can then detach the blade lift tool 10 from the road grader blade by removing first pin 28 and second pin 28 from the first and second bolt holes and allowing the motor grader blade to fall into place on the blade body.
  • the user can then complete installation of the new motor grader blade in a manner well known in the art.
  • FIGs. 13-17 an alternative blade lift tool 200 is constructed in accordance with a second preferred embodiment of the present invention.
  • the remaining description will focus primarily on the differences of this preferred embodiment from the embodiment described above.
  • the illustrated blade lift tool 200 is operable to be adjusted into and out of an upright, straight configuration (see Fig. 13). However, as will be discussed further, the blade lift tool 200 is also configured to be shifted into and out of a first bent configuration (see Fig. 15) and a second bent configuration (see Fig. 16).
  • the blade lift tool 200 preferably includes a handle bar 202, an alternative center riser 204, a bottom member 206 with wheels 208, a bracing member 210, blade-engaging members 212, and stabilizing member 214.
  • the center riser 204 comprises an adjustable and generally upright structure that interconnects the handle bar 202 and bottom member 206.
  • the center riser 204 preferably includes upper and lower riser sections 204a,b that are connected via a hinged joint 215 and are swingable relative to one another.
  • the riser sections 204a,b include corresponding upper and lower shafts 216a,b.
  • Lower riser section 204b also includes a pair of hinge supports 218 and a bolt 220.
  • the hinge supports 218 each have a generally unitary construction and include a mounting plate 222 and a tube 224 fixed to the plate 222.
  • the hinge supports 218 are fixed to the lower shaft 216b.
  • the hinge supports 218 and lower shaft 216b cooperatively define an elongated upright channel 225 to slidably receive the upper riser section 204a (see Figs. 15 and 16).
  • the bolt 220 includes a bolt pin 226a that projects through the plates 222 and tubes 224 and connects the hinge supports 218 to each other.
  • the bolt 220 also includes a collar 226b secured to the bolt pin 226a.
  • the bolt 220 defines a generally horizontal bolt axis about which the upper riser section 204a rotates.
  • the upper riser section 204a includes the upper shaft 216a, a receiver 228, an adjustable locking member 230, a removable locking pin 232, and a removable adjustment pin 234.
  • the receiver 228 comprises a unitary structure that includes a tubular hinged base 236 and a tubular support member 238 fixed alongside the hinged base 236.
  • the hinged base 236 is removably connected to the upper shaft 216a with a removable shaft pin 240.
  • the illustrated hinged base 236 is rotatably mounted on the bolt 220 so that the receiver 228 can swing about the horizontal bolt axis as the blade lift tool 200 is moved between the upright and bent configurations.
  • the hinged base 236 is partly received within the channel 225, with the hinge supports permitting the receiver 228 to slide within the channel 225.
  • the hinged base 236 preferably serves to guide the receiver 228 as the receiver 228 swings between the configurations.
  • the locking member 230 is unitary and preferably includes a tubular body 242 and a cylindrical lug 244 welded to an upper end of the body 242 (see Fig. 17).
  • the body 242 presents a series of holes 246a,b,c spaced below the lug 244.
  • the locking member 230 is preferably slidably received within a passage of the support member 238.
  • the illustrated locking member 230 is configured to be vertically positioned relative to the support member 238 to align an opening 248 (see Figs. 14 and 15) in the support member 238 with one of the holes 246a,b.
  • the adjustment pin 234 is configured to be removably inserted through the opening 248 and hole 246a,b.
  • the adjustment pin 234 is operable to removably secure the locking member 230 in a lower position (see Figs. 14 and 15), where the adjustment pin 234 extends through hole 246a, and in an upper position (see Fig. 16), where the adjustment pin 234 extends through hole 246b.
  • the hinge supports 218 each present spaced apart holes 250 that cooperatively define attachment locations 252a,b,c of the lower riser section 204b.
  • Each attachment location 252 is configured to be removably attached to the upper riser section 204a by the locking pin 232.
  • the locking pin 232 secures the receiver 228 to the attachment location 252a (see Fig. 14).
  • the locking member 230 is also secured in the lower position, although the locking member 230 could be alternatively positioned.
  • the locking pin 232 secures the receiver 228 to the attachment location 252c (see Fig. 15). Specifically, the locking pin 232 is inserted through the corresponding holes 250 and through the hole 246c presented by the locking member 230. Additionally, the locking member 230 is secured in the lower position by the adjustment pin 234. In this manner, the locking pin 232, adjustment pin 234, and locking member 230 cooperatively interconnect the receiver 228 and the hinge supports 218 to restrict relative rotation therebetween.
  • the upper shaft 216a is preferably rotated downwardly from the upright configuration through an angle that ranges from about thirty degrees (30°) to about sixty degrees (60°) and, more preferably, is about forty-five degrees (45°).
  • the locking pin 232 secures the receiver 228 to the attachment location 252b (see Fig. 16). Specifically, the locking member 230 is secured in the upper position by the adjustment pin 234. The locking pin 232 is inserted through corresponding holes 250 and through the hole 246c presented by the locking member 230. Consequently, the locking pin 232, adjustment pin 234, and locking member 230 again interconnect the receiver 228 and the hinge supports 218 to restrict relative rotation therebetween.
  • the upper shaft 216a is preferably rotated downwardly from the upright configuration through an angle that ranges from about forty-five degrees (45°) to about seventy-five degrees (75°) and, more preferably, is about sixty degrees (60°).
  • the blade lift tool 200 is configured to be maneuvered by a user to selectively lift and move the motor grader blade. With the blade attached to the blade lift tool 200, the user can selectively tilt the blade lift tool 200 to raise and lower the blade.
  • the illustrated tools 10,200 are configured to permit manual raising and lower blade. Furthermore, the tools 10,200 permit the user to manually roll the tool and the blade across a surface. However, for some aspects of the present invention, the tools 10,200 could be configured to include a motor that powers the rolling and/or lifting functions of the tool.
  • the phrase "and/or," when used in a list of two or more items, means that any one of the listed items can be employed by itself or any combination of two or more of the listed items can be employed.
  • the composition can contain or exclude A alone; B alone; C alone; A and B in combination; A and C in combination; B and C in combination; or A, B, and C in combination.
  • the present description also uses numerical ranges to quantify certain parameters relating to various embodiments of the invention.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

Cette invention concerne un outil de levage de lame configuré pour soulever de façon sélective et déplacer une lame de niveleuse. Ledit outil de levage de lame comprend un élément de fond à roues, une poignée et un montant vertical ajustable. Le montant comprend des sections allongées supérieure et inférieure de montant et un joint articulé qui relie les sections de montant, le joint articulé permettant à la section supérieure de montant d'osciller par rapport à la section inférieure de montant. Le montant comprend un élément de verrouillage mis en prise de manière amovible avec au moins l'une des sections de montant pour limiter un mouvement articulé relatif entre les sections de montant, l'élément de verrouillage étant amovible pour permettre de manière sélective le pivotement de la section supérieure de montant.
PCT/US2015/068086 2014-12-30 2015-12-30 Outil de levage de lame WO2016109681A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201462097776P 2014-12-30 2014-12-30
US62/097,776 2014-12-30

Publications (1)

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WO2016109681A1 true WO2016109681A1 (fr) 2016-07-07

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PCT/US2015/068086 WO2016109681A1 (fr) 2014-12-30 2015-12-30 Outil de levage de lame

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WO (1) WO2016109681A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2727753A (en) * 1952-12-08 1955-12-20 Foley Mfg Company Adjustable lawn mower handle
US3275166A (en) * 1963-12-31 1966-09-27 Shannon Nile Blade changer dolly
US4974871A (en) * 1990-01-08 1990-12-04 Jiun Long Metal Industrial Co., Ltd. Foldable hand truck
US6654998B1 (en) * 1999-02-11 2003-12-02 Spx Corporation Method of installing plates on blade of plow or grader
US20120228842A1 (en) * 2011-03-10 2012-09-13 Rodney Leach Blade lift tool

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2727753A (en) * 1952-12-08 1955-12-20 Foley Mfg Company Adjustable lawn mower handle
US3275166A (en) * 1963-12-31 1966-09-27 Shannon Nile Blade changer dolly
US4974871A (en) * 1990-01-08 1990-12-04 Jiun Long Metal Industrial Co., Ltd. Foldable hand truck
US6654998B1 (en) * 1999-02-11 2003-12-02 Spx Corporation Method of installing plates on blade of plow or grader
US20120228842A1 (en) * 2011-03-10 2012-09-13 Rodney Leach Blade lift tool

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