US20010045030A1 - Rake attachment for skid steer loaders and front end loaders and method for converting a loader bucket into a lawn preparation tool - Google Patents
Rake attachment for skid steer loaders and front end loaders and method for converting a loader bucket into a lawn preparation tool Download PDFInfo
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- US20010045030A1 US20010045030A1 US09/426,973 US42697399A US2001045030A1 US 20010045030 A1 US20010045030 A1 US 20010045030A1 US 42697399 A US42697399 A US 42697399A US 2001045030 A1 US2001045030 A1 US 2001045030A1
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- Prior art keywords
- bucket
- attachment
- rake
- plate
- holes
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000002360 preparation method Methods 0.000 title claims description 9
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 4
- 230000000135 prohibitive effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B45/00—Machines for treating meadows or lawns, e.g. for sports grounds
- A01B45/02—Machines for treating meadows or lawns, e.g. for sports grounds for aerating
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
- E02F3/401—Buckets or forks comprising, for example, shock absorbers, supports or load striking scrapers to prevent overload
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/80—Component parts
- E02F3/815—Blades; Levelling or scarifying tools
- E02F3/8152—Attachments therefor, e.g. wear resisting parts, cutting edges
Definitions
- the present invention relates generally to skid steer loaders and front end loaders, and more particularly relates to ground preparation attachments for such loaders.
- Skid steer loaders and front end loaders are commonly used vehicles for many industrial, agricultural, and landscaping operations. There are a variety of companies that manufacture and sell such loaders. Skid steer loaders and front end loaders both typically have two laterally spaced loader arms mounted on the vehicle that swing upwardly and downwardly. When the arms are down, their forward ends extend downwardly in front of the vehicle. A mounting plate is supported on the forward ends of the loader arms. A mounting structure is typically attached to the plate and in turn supports and facilitates further attachments. A number of attachments can thus be coupled to the ends of the loader arms to make the loaders applicable to many different types of applications. For example, a bucket is commonly provided for ground preparation activities such as excavating, dumping, surface digging, leveling, and transporting. Similarly, the loaders can be adapted through various attachments to act as a forklift, back hoe, ground preparator, and the like.
- the attachment can be used for tasks such as grading or scarifying.
- the device includes several surface engaging members, including a mounting saddle and a rake blade.
- the rake blade is mounted to a forward support member which in turn is connected to the mounting saddle by a pair of spaced side support members.
- the mounting saddle can be used to push and level soil, and mounts to the mounting plate fixed to the skid steer loader arms. While this attachment permits grading and scarifying, it does not support excavating, dumping, or transporting as buckets do. This type of product has also not met with much commercial success because it requires the purchase of a new implement which is often cost prohibitive.
- Buckets have also been developed where the bucket includes teeth that are typically made from forged bars of steel and typically welded to the bucket, such as that shown in U.S. Pat. No. 4,317,299.
- the teeth are helpful in breaking up hard soil, clay or rock when digging and excavating.
- buckets with permanent teeth are not always practical. Some tasks are preferably completed without the teeth.
- a general object of the present invention is to provide a lawn preparation attachment that is more practical and economical than the prior art.
- the present invention is directed towards a rake attachment for attachment to a bucket and a bucket implement incorporating the same.
- the rake attachment can quickly and easily be installed directly on a bucket for a loader.
- the rake attachment is durable and easily converts the bucket to a rake type lawn preparation tool.
- the bucket with a rake attachment provides a lawn preparation implement and is very inexpensive in comparison to other comparable prior art lawn preparation attachments.
- the rake attachment generally includes an elongate plate having teeth projecting along a longitudinal edge of the plate.
- the plate includes a plurality of mounting holes to facilitate mounting the rake attachment to a bucket.
- the rake attachment generally has a length substantially corresponding with the width of the bucket to which it is to be affixed.
- a plurality of nuts and bolts may be used to secure the rake attachment to the bucket via the aligned apertures and holes in the bucket and the rake attachment.
- the rake attachment has universal mounting holes to facilitate attachment to a variety of buckets from different commercial manufacturers.
- the holes are spaced such that they form sets of hole combinations, each set corresponding with preexisting and predetermined holes built into bucket attachments for skid steer loaders.
- the rake attachment may be designed to be capable of attaching to numerous buckets from different manufacturers.
- FIG. 1 is a top view of the rake attachment according to the present invention.
- FIG. 2 is a side view of the rake attachment and skid steer according to the present invention.
- FIG. 3 is a perspective illustration of a skid steer loader having a rake attachment according to the present invention.
- FIG. 4 is an enlarged view of the rake attachment as shown in FIG. 2.
- FIG. 5 is an enlarged view of a rake attachment according to an alternative embodiment.
- FIG. 1 shows a preferred embodiment of the present invention.
- the rake attachment 8 generally comprises an elongate plate 10 .
- the elongate plate 10 has a top surface 9 , a bottom surface 39 , and a plurality of mounting holes 14 extending through the plate 10 .
- FIG. 1 shows the holes 14 having a square shape, however, circular or any other suitable shape or size of holes 14 may be employed in conjunction with the present invention.
- the mounting holes 14 may also include a countersink 44 (shown in FIG. 5) as will be described in further detail below.
- the mounting holes 14 are spaced along the length of the plate 10 .
- the length of the plate 10 corresponds generally with the width of the bucket, and in the preferred embodiment is generally around six feet.
- the plate also has width in the preferred embodiment of approximately eight to ten inches, and a thickness of about 1 ⁇ 2 inch to provide sufficient strength for enduring continuous raking engagement with a soil surface.
- a plurality of teeth 12 project along a longitudinal edge 11 of the plate 10 .
- the teeth 12 have radiused points 15 . Between adjacent teeth 12 , are radiused troughs 13 which connect the adjacent teeth 12 .
- the rake attachment 8 has approximately four to five teeth per foot.
- the teeth generally project from the plate 10 approximately five to six inches, and have the same thickness as the plate 10 . While the aforementioned dimensional ranges for the rake attachment 8 , particularly the length, teeth per foot and tooth length, are the preferred ranges for a rake attachment for a skid steer loader, the present invention can be employed with dimensions outside of these preferred ranges.
- the entire rake attachment 8 is cut from a unitary plate of solid steel material in a single plasma cutting operation. This method of manufacture provides suitable strength and durability of the individual teeth 12 and the rake attachment 8 as a whole. Because the rake attachment 8 is a unitary plate member which can be attached by conventional fasteners, the rake attachment 8 is very cost efficient and inexpensive relative to other prior art attempts. Numerous rake attachments 8 may be plasma cut from steel plate stock, thereby greatly reducing scrap material. Likewise, the plurality of holes 14 can be plasma cut in the same process.
- the rake attachment 8 is designed to be fixed to a bucket attachment of a loader.
- the loader 18 includes loader arms 28 and pivot assembly 36 .
- Loader arms 28 and pivot assembly 36 are pivotally mounted to opposing ends of mounting structure 30 .
- a variety of attachments may be mounted onto the mounting structure 30 for use with the loader 18 .
- the loader arms 28 move upwardly and downwardly, operating to raise and lower whatever attachment is mounted onto mounting structure 30 .
- Pivot assembly 36 extends and retracts, forcing mounting structure 30 to rotate about its point of connection with the loader arm 28 .
- the operability of loader arms 28 and pivot assembly 36 permit the manipulation of mounting structure 30 , and thus any attachment fixed to mounting structure 30 , in a wide variety of movements and configurations.
- a typical bucket attachment 19 comprises a bucket 20 having a rear wall 21 , a bottom wall 23 and sidewalls 25 .
- the rear wall 21 is generally vertical, but may slant forward as shown.
- a top lip 29 may be fixed to the upper edge of rear wall 21 .
- the rear wall 21 is shown as being flat, the rear wall 21 can be curved to form a ‘scoop’. In any event, the rear wall 21 extends downwardly towards bottom wall 23 which is generally horizontal. Rear wall 21 can be directly connected to bottom wall 23 .
- rear wall 21 and bottom wall 23 can be interconnected by angled wall 31 , which is fixed to a downward edge of rear wall 21 and a rear edge of bottom wall 23 .
- Side walls 25 are generally parallel to one another, and are shaped such that their perimeter corresponds with and is fixed to the side edges of rear wall 21 , angled wall 31 , and bottom wall 23 , thereby enclosing the structure and forming the bucket 20 .
- the rear wall 21 substantially forms the back side 24 of the bucket 20 .
- Projecting from the back side 24 of the bucket 20 are a pair of brackets 26 .
- the brackets 26 attach to the mounting structure 30 of the skid steer loader 18 .
- the mounting structure 30 may include a quick attach coupler for simple and fast coupling to the brackets 26 of bucket attachment 19 .
- Bottom wall 23 extends beyond the sidewalls 25 to form front lip 22 .
- the front lip 22 has a bottom surface 27 that extends generally parallel with the bottom wall 23 .
- the thickness of front lip 22 may narrow slightly to form a pointed edge, as shown in FIGS. 2 - 5 , or may remain constant to form a relatively flat edge.
- Front lip 22 contains a plurality of apertures 34 extending through the lip 22 .
- Bucket attachments come directly from the manufacturer with these apertures formed in the front lip.
- the apertures are spaced apart by specific dimensions, those dimensions differing only among manufacturers and bucket sizes. Different manufacturers often have different spacing between the apertures, and each manufacturer may vary their own spacing of the apertures along their range of bucket sizes.
- the widths of different buckets may also vary, and the rake attachments of the present invention can have lengths to correspond with the varying widths of buckets from different commercial manufacturers.
- the plate 10 of the rake attachment 8 has universal mounting holes 14 , to facilitate mounting the rake attachment to the buckets of different commercial manufacturers, as shown in FIG. 1.
- the number of holes 14 in the rake attachment 8 generally outnumbers the number of apertures 34 in the front lip 22 of the bucket 20 .
- the spacing of the holes 14 in the rake attachment 8 is designed so that different combinations of holes 14 may be used to create sets that correspond with a variety of different bucket attachments 19 . In this way, a single rake attachment 8 can be used for a wide variety of different bucket attachments 19 produced by various manufacturers. For example, in a preferred embodiment illustrated in FIG.
- the rake attachment 8 contains eight holes 14 extending through the plate 10 .
- fewer that eight holes 14 are typically used, e.g., only the outermost and innermost holes 14 (totaling four holes) may be used, as shown in FIG. 3. Therefore, one rake attachment may be used in conjunction with a wide array of different buckets from different manufacturers.
- FIG. 3 shows a preferred embodiment in the form of a skid steer loader 18 having a bucket attachment 19 .
- Loader arms 28 extend down in front of the loader 18 and are attached to mounting structure 30 .
- Mounting structure 30 is coupled to the backside 24 of bucket attachment 19 via brackets 26 .
- the front lip 22 contains apertures 34 that are spaced in a specific fashion.
- the holes 14 of rake attachment 8 are spaced to correspond with the particular bucket attachment 19 , based on the manufacturer and bucket size.
- a plurality of washers, nuts 40 and bolts 42 are used to attach the rake attachment 8 to the bucket attachment 19 . With square holes, bolt carriers can be used.
- the holes 14 in the plate 10 of the rake attachment 8 may also include countersinks 44 .
- the countersinks 44 are located at the bottom surface 39 of the plate 10 .
- the countersinks 44 are sized to receive either the nuts 40 or the heads of bolts 42 , as well as their corresponding washers.
- the depth of the countersinks 44 are designed such that the outer surface of the nuts 40 or bolt heads 42 are flush with the bottom surface 39 of the plate 10 when secured through the corresponding holes 14 and apertures 34 . This provides a flat bottom surface which makes the attachment even more practical as the bottom edge of the rake can be used for leveling. This also reduces wear on the fasteners used.
- the method of converting a bucket 20 into a rake attachment implement includes the steps of providing the proper rake attachment 8 based on the manufacture and size of the bucket attachment 19 , aligning the rake attachment 8 and bucket attachment 19 such that the teeth 12 project from the front of the bucket 20 and such that a select number or all of the holes 14 in the rake attachment 8 are in alignment with corresponding apertures 34 in the front lip 22 , and securing the rake attachment 8 to the front lip 22 of the bucket attachment 19 .
- this last step is accomplished by placing bolts 42 through the apertures 34 and holes 14 of the front lip 22 and plate 10 .
- Nuts 40 are affixed to the distal end of the bolts 42 , thereby securing the rake attachment 8 to the front lip 22 of the bucket 20 .
- FIGS. 2 and 4 show the nuts 40 below the rake attachment 8 , the nuts 40 may also be attached to the bolts 42 at position located above the front lip 22 .
- the rake attachment 8 may be removed from the bucket attachment 19 by removing the nuts 40 and bolts 42 .
- this allows the implement to be converted back into a loader bucket, thereby increasing the practicality of the rake attachment.
- the rake attachment 8 may be secured to a second bucket attachment using the method described above if so desired.
- the rake attachment of the present invention has been affixed using nuts and bolts, other securing means such as any other suitable fastener may be used.
- a locking pin using a cotter pin or hinge pin retainer may also be used, as well as many other fasteners well known in the art.
- the holes 14 in the rake attachment 8 or the apertures 34 in the front lip 22 can be internally threaded to receive the bolts 42 , eliminating the need for the nuts 40 .
- the holes 14 in the rake attachment 8 can be designed to receive and secure a number pin devices known in the art.
- the present invention provides a rake attachment that is inexpensive and easy to manufacture.
- the rake attachment is formed from a single plate of material, providing strength and durability. Further, the rake attachment features a plurality of apertures that can be combined into many different sets, each set corresponding with a specific manufacturer's bucket attachment. As such, one rake attachment can be used with a variety of different bucket attachments for skid steer loaders and front end loaders.
- the present invention also provides a bucket implement employing the rake attachment. This greatly increases the versatility of the bucket without being cost prohibitive. A method of converting a bucket into a rake attachment is provided, as well as removal and re-installation, that is quick, simple and effective.
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Abstract
Description
- The present invention relates generally to skid steer loaders and front end loaders, and more particularly relates to ground preparation attachments for such loaders.
- Skid steer loaders and front end loaders are commonly used vehicles for many industrial, agricultural, and landscaping operations. There are a variety of companies that manufacture and sell such loaders. Skid steer loaders and front end loaders both typically have two laterally spaced loader arms mounted on the vehicle that swing upwardly and downwardly. When the arms are down, their forward ends extend downwardly in front of the vehicle. A mounting plate is supported on the forward ends of the loader arms. A mounting structure is typically attached to the plate and in turn supports and facilitates further attachments. A number of attachments can thus be coupled to the ends of the loader arms to make the loaders applicable to many different types of applications. For example, a bucket is commonly provided for ground preparation activities such as excavating, dumping, surface digging, leveling, and transporting. Similarly, the loaders can be adapted through various attachments to act as a forklift, back hoe, ground preparator, and the like.
- One such attachment is disclosed in U.S. Pat. No. 5,413,181, where the attachment can be used for tasks such as grading or scarifying. The device includes several surface engaging members, including a mounting saddle and a rake blade. The rake blade is mounted to a forward support member which in turn is connected to the mounting saddle by a pair of spaced side support members. The mounting saddle can be used to push and level soil, and mounts to the mounting plate fixed to the skid steer loader arms. While this attachment permits grading and scarifying, it does not support excavating, dumping, or transporting as buckets do. This type of product has also not met with much commercial success because it requires the purchase of a new implement which is often cost prohibitive.
- Buckets have also been developed where the bucket includes teeth that are typically made from forged bars of steel and typically welded to the bucket, such as that shown in U.S. Pat. No. 4,317,299. The teeth are helpful in breaking up hard soil, clay or rock when digging and excavating. However, buckets with permanent teeth are not always practical. Some tasks are preferably completed without the teeth.
- Various devices have attempted to utilize individual teeth assemblies for attachment to a bucket. For example, U.S. Pat. No. 4,729,180 discloses an attachment to a bucket that includes teeth mounting posts spaced intermittently along the bucket for receiving individual attachable teeth. While this type of device permits use of the bucket without teeth, it too has drawbacks. One is that the attachment of the individual teeth to existing buckets can be rather complicated and require numerous parts for proper mounting. Often, a specialized bracket is required to attach the individual teeth to the bucket.
- In light of the above, a general object of the present invention is to provide a lawn preparation attachment that is more practical and economical than the prior art.
- In that regard, it is also an object according to one aspect of the present invention to provide a single rake attachment that can be affixed to a variety of different bucket attachments from different manufacturers.
- It is a further object of the present invention to accomplish these objectives without being cost prohibitive.
- In view of these and other objects of the invention, the present invention is directed towards a rake attachment for attachment to a bucket and a bucket implement incorporating the same. The rake attachment can quickly and easily be installed directly on a bucket for a loader. The rake attachment is durable and easily converts the bucket to a rake type lawn preparation tool. The bucket with a rake attachment provides a lawn preparation implement and is very inexpensive in comparison to other comparable prior art lawn preparation attachments.
- The rake attachment generally includes an elongate plate having teeth projecting along a longitudinal edge of the plate. The plate includes a plurality of mounting holes to facilitate mounting the rake attachment to a bucket. Thus, the rake attachment generally has a length substantially corresponding with the width of the bucket to which it is to be affixed. A plurality of nuts and bolts may be used to secure the rake attachment to the bucket via the aligned apertures and holes in the bucket and the rake attachment.
- It is a feature of the present invention that the rake attachment has universal mounting holes to facilitate attachment to a variety of buckets from different commercial manufacturers. The holes are spaced such that they form sets of hole combinations, each set corresponding with preexisting and predetermined holes built into bucket attachments for skid steer loaders. Thus, the rake attachment may be designed to be capable of attaching to numerous buckets from different manufacturers.
- These and other object and advantages of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
- FIG. 1 is a top view of the rake attachment according to the present invention.
- FIG. 2 is a side view of the rake attachment and skid steer according to the present invention.
- FIG. 3 is a perspective illustration of a skid steer loader having a rake attachment according to the present invention.
- FIG. 4 is an enlarged view of the rake attachment as shown in FIG. 2.
- FIG. 5 is an enlarged view of a rake attachment according to an alternative embodiment.
- While the invention will be described in connection with certain preferred embodiments, there is no intent to limit it to those embodiments. On the contrary, the intent is to cover all alternatives, modifications and equivalents as included within the spirit and scope of the invention as defined by the appended claims.
- Referring now to the drawings, FIG. 1 shows a preferred embodiment of the present invention. The
rake attachment 8 generally comprises anelongate plate 10. Theelongate plate 10 has atop surface 9, abottom surface 39, and a plurality ofmounting holes 14 extending through theplate 10. FIG. 1 shows theholes 14 having a square shape, however, circular or any other suitable shape or size ofholes 14 may be employed in conjunction with the present invention. Themounting holes 14 may also include a countersink 44 (shown in FIG. 5) as will be described in further detail below. Themounting holes 14 are spaced along the length of theplate 10. The length of theplate 10 corresponds generally with the width of the bucket, and in the preferred embodiment is generally around six feet. The plate also has width in the preferred embodiment of approximately eight to ten inches, and a thickness of about ½ inch to provide sufficient strength for enduring continuous raking engagement with a soil surface. - A plurality of
teeth 12 project along alongitudinal edge 11 of theplate 10. Theteeth 12 have radiusedpoints 15. Betweenadjacent teeth 12, are radiusedtroughs 13 which connect theadjacent teeth 12. In the preferred embodiment, therake attachment 8 has approximately four to five teeth per foot. The teeth generally project from theplate 10 approximately five to six inches, and have the same thickness as theplate 10. While the aforementioned dimensional ranges for therake attachment 8, particularly the length, teeth per foot and tooth length, are the preferred ranges for a rake attachment for a skid steer loader, the present invention can be employed with dimensions outside of these preferred ranges. - The
entire rake attachment 8 is cut from a unitary plate of solid steel material in a single plasma cutting operation. This method of manufacture provides suitable strength and durability of theindividual teeth 12 and therake attachment 8 as a whole. Because therake attachment 8 is a unitary plate member which can be attached by conventional fasteners, therake attachment 8 is very cost efficient and inexpensive relative to other prior art attempts.Numerous rake attachments 8 may be plasma cut from steel plate stock, thereby greatly reducing scrap material. Likewise, the plurality ofholes 14 can be plasma cut in the same process. - As shown in FIGS.2-5, the
rake attachment 8 is designed to be fixed to a bucket attachment of a loader. Referring to FIG. 2, theloader 18 includesloader arms 28 andpivot assembly 36.Loader arms 28 andpivot assembly 36 are pivotally mounted to opposing ends of mountingstructure 30. A variety of attachments may be mounted onto the mountingstructure 30 for use with theloader 18. - The
loader arms 28 move upwardly and downwardly, operating to raise and lower whatever attachment is mounted onto mountingstructure 30.Pivot assembly 36 extends and retracts, forcing mountingstructure 30 to rotate about its point of connection with theloader arm 28. The operability ofloader arms 28 andpivot assembly 36 permit the manipulation of mountingstructure 30, and thus any attachment fixed to mountingstructure 30, in a wide variety of movements and configurations. - A
typical bucket attachment 19 comprises abucket 20 having arear wall 21, abottom wall 23 andsidewalls 25. When theloader arms 28 are in their down position, as shown in FIGS. 2 and 3, therear wall 21 is generally vertical, but may slant forward as shown. Atop lip 29 may be fixed to the upper edge ofrear wall 21. Although therear wall 21 is shown as being flat, therear wall 21 can be curved to form a ‘scoop’. In any event, therear wall 21 extends downwardly towardsbottom wall 23 which is generally horizontal.Rear wall 21 can be directly connected tobottom wall 23. In the preferred embodiment, however, and as shown in the figures,rear wall 21 andbottom wall 23 can be interconnected byangled wall 31, which is fixed to a downward edge ofrear wall 21 and a rear edge ofbottom wall 23.Side walls 25 are generally parallel to one another, and are shaped such that their perimeter corresponds with and is fixed to the side edges ofrear wall 21, angledwall 31, andbottom wall 23, thereby enclosing the structure and forming thebucket 20. - The
rear wall 21 substantially forms theback side 24 of thebucket 20. Projecting from theback side 24 of thebucket 20 are a pair ofbrackets 26. Thebrackets 26 attach to the mountingstructure 30 of theskid steer loader 18. The mountingstructure 30 may include a quick attach coupler for simple and fast coupling to thebrackets 26 ofbucket attachment 19.Bottom wall 23 extends beyond thesidewalls 25 to formfront lip 22. - The
front lip 22 has abottom surface 27 that extends generally parallel with thebottom wall 23. The thickness offront lip 22 may narrow slightly to form a pointed edge, as shown in FIGS. 2-5, or may remain constant to form a relatively flat edge.Front lip 22 contains a plurality ofapertures 34 extending through thelip 22. Bucket attachments come directly from the manufacturer with these apertures formed in the front lip. The apertures are spaced apart by specific dimensions, those dimensions differing only among manufacturers and bucket sizes. Different manufacturers often have different spacing between the apertures, and each manufacturer may vary their own spacing of the apertures along their range of bucket sizes. The widths of different buckets may also vary, and the rake attachments of the present invention can have lengths to correspond with the varying widths of buckets from different commercial manufacturers. - In accordance with an aspect of the present invention, the
plate 10 of therake attachment 8 has universal mounting holes 14, to facilitate mounting the rake attachment to the buckets of different commercial manufacturers, as shown in FIG. 1. The number ofholes 14 in therake attachment 8 generally outnumbers the number ofapertures 34 in thefront lip 22 of thebucket 20. The spacing of theholes 14 in therake attachment 8 is designed so that different combinations ofholes 14 may be used to create sets that correspond with a variety ofdifferent bucket attachments 19. In this way, asingle rake attachment 8 can be used for a wide variety ofdifferent bucket attachments 19 produced by various manufacturers. For example, in a preferred embodiment illustrated in FIG. 1, therake attachment 8 contains eightholes 14 extending through theplate 10. However, when affixing therake attachment 8 to abucket attachment 19, fewer that eightholes 14 are typically used, e.g., only the outermost and innermost holes 14 (totaling four holes) may be used, as shown in FIG. 3. Therefore, one rake attachment may be used in conjunction with a wide array of different buckets from different manufacturers. - FIG. 3 shows a preferred embodiment in the form of a
skid steer loader 18 having abucket attachment 19.Loader arms 28 extend down in front of theloader 18 and are attached to mountingstructure 30. Mountingstructure 30 is coupled to thebackside 24 ofbucket attachment 19 viabrackets 26. Thefront lip 22 containsapertures 34 that are spaced in a specific fashion. Theholes 14 ofrake attachment 8 are spaced to correspond with theparticular bucket attachment 19, based on the manufacturer and bucket size. As best seen in FIG. 4, a plurality of washers, nuts 40 andbolts 42 are used to attach therake attachment 8 to thebucket attachment 19. With square holes, bolt carriers can be used. - Turning to the alternative embodiment as shown in FIG. 5, the
holes 14 in theplate 10 of therake attachment 8 may also includecountersinks 44. Thecountersinks 44 are located at thebottom surface 39 of theplate 10. Thecountersinks 44 are sized to receive either the nuts 40 or the heads ofbolts 42, as well as their corresponding washers. The depth of thecountersinks 44 are designed such that the outer surface of the nuts 40 or bolt heads 42 are flush with thebottom surface 39 of theplate 10 when secured through the correspondingholes 14 andapertures 34. This provides a flat bottom surface which makes the attachment even more practical as the bottom edge of the rake can be used for leveling. This also reduces wear on the fasteners used. - The method of converting a
bucket 20 into a rake attachment implement includes the steps of providing theproper rake attachment 8 based on the manufacture and size of thebucket attachment 19, aligning therake attachment 8 andbucket attachment 19 such that theteeth 12 project from the front of thebucket 20 and such that a select number or all of theholes 14 in therake attachment 8 are in alignment withcorresponding apertures 34 in thefront lip 22, and securing therake attachment 8 to thefront lip 22 of thebucket attachment 19. In the preferred embodiment, this last step is accomplished by placingbolts 42 through theapertures 34 and holes 14 of thefront lip 22 andplate 10.Nuts 40 are affixed to the distal end of thebolts 42, thereby securing therake attachment 8 to thefront lip 22 of thebucket 20. Although FIGS. 2 and 4 show thenuts 40 below therake attachment 8, the nuts 40 may also be attached to thebolts 42 at position located above thefront lip 22. - Similarly, the
rake attachment 8 may be removed from thebucket attachment 19 by removing the nuts 40 andbolts 42. Advantageously this allows the implement to be converted back into a loader bucket, thereby increasing the practicality of the rake attachment. Once removed, therake attachment 8 may be secured to a second bucket attachment using the method described above if so desired. While the rake attachment of the present invention has been affixed using nuts and bolts, other securing means such as any other suitable fastener may be used. For example, a locking pin using a cotter pin or hinge pin retainer may also be used, as well as many other fasteners well known in the art. Further, theholes 14 in therake attachment 8 or theapertures 34 in thefront lip 22 can be internally threaded to receive thebolts 42, eliminating the need for the nuts 40. Likewise, theholes 14 in therake attachment 8 can be designed to receive and secure a number pin devices known in the art. - Therefore, the present invention provides a rake attachment that is inexpensive and easy to manufacture. The rake attachment is formed from a single plate of material, providing strength and durability. Further, the rake attachment features a plurality of apertures that can be combined into many different sets, each set corresponding with a specific manufacturer's bucket attachment. As such, one rake attachment can be used with a variety of different bucket attachments for skid steer loaders and front end loaders. The present invention also provides a bucket implement employing the rake attachment. This greatly increases the versatility of the bucket without being cost prohibitive. A method of converting a bucket into a rake attachment is provided, as well as removal and re-installation, that is quick, simple and effective.
Claims (16)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US09/426,973 US6360458B2 (en) | 1999-10-26 | 1999-10-26 | Rake attachment for skid steer loaders and front end loaders and method for converting a loader bucket into a lawn preparation tool |
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US09/426,973 US6360458B2 (en) | 1999-10-26 | 1999-10-26 | Rake attachment for skid steer loaders and front end loaders and method for converting a loader bucket into a lawn preparation tool |
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US20010045030A1 true US20010045030A1 (en) | 2001-11-29 |
US6360458B2 US6360458B2 (en) | 2002-03-26 |
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US09/426,973 Expired - Fee Related US6360458B2 (en) | 1999-10-26 | 1999-10-26 | Rake attachment for skid steer loaders and front end loaders and method for converting a loader bucket into a lawn preparation tool |
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Cited By (2)
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US20050172525A1 (en) * | 2004-02-10 | 2005-08-11 | Kostyak Bradley W. | Landscaping apparatus and method |
CN111335375A (en) * | 2020-03-13 | 2020-06-26 | 上海外高桥造船有限公司 | Forklift and forklift operation method |
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US6523284B1 (en) * | 2000-02-14 | 2003-02-25 | Scot J. Clugston | Multi-purpose material handling apparatus |
US7266914B2 (en) * | 2001-10-09 | 2007-09-11 | Peninsula Alloy Inc. | Wear plate assembly |
US6718662B1 (en) * | 2002-05-06 | 2004-04-13 | Timothy Schaff | Do-all rake-tooth bucket extension attachment |
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US20060120848A1 (en) * | 2004-01-22 | 2006-06-08 | Guhr Troy D | Skid steer adapter |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US20050172525A1 (en) * | 2004-02-10 | 2005-08-11 | Kostyak Bradley W. | Landscaping apparatus and method |
US7287344B2 (en) * | 2004-02-10 | 2007-10-30 | Kostyak Bradley W | Landscaping apparatus and method |
CN111335375A (en) * | 2020-03-13 | 2020-06-26 | 上海外高桥造船有限公司 | Forklift and forklift operation method |
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