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Apparatus for lifting and transporting drywall panels on a lift platform has a pair of panel-supporting legs of square metal tubing attachable to side rails of a lift platform. Each of the legs is connected to the rails by an upper clamp at the top of the leg and a lower clamp at a middle location.

Apparatus for lifting and transporting drywall panels on a lift platform has a pair of panel-supporting legs of square metal tubing attachable to side rails of a lift platform. Each of the legs is connected to the rails by an upper clamp at the top of the leg and a lower clamp at a middle location. A panel-receiving U-shaped channel is located on the opposite side of the leg, away from the rails. The lower clamp has a standoff member included in its connection to the leg, which serves to project the bottom of the legs outward at an angle. Rollers at the top and bottom of the legs provide low-friction rolling contact for weight bearing surfaces, and other rollers are placed to keep panels away from contacting the legs or other surfaces.

대표청구항 ▼

Apparatus for lifting and transporting drywall panels on a lift platform has a pair of panel-supporting legs of square metal tubing attachable to side rails of a lift platform. Each of the legs is connected to the rails by an upper clamp at the top of the leg and a lower clamp at a middle location.

Apparatus for lifting and transporting drywall panels on a lift platform has a pair of panel-supporting legs of square metal tubing attachable to side rails of a lift platform. Each of the legs is connected to the rails by an upper clamp at the top of the leg and a lower clamp at a middle location. A panel-receiving U-shaped channel is located on the opposite side of the leg, away from the rails. The lower clamp has a standoff member included in its connection to the leg, which serves to project the bottom of the legs outward at an angle. Rollers at the top and bottom of the legs provide low-friction rolling contact for weight bearing surfaces, and other rollers are placed to keep panels away from contacting the legs or other surfaces. re arranged in said interior passageway of said hub body and adjacent said first spoke openings to isolate said first spoke openings from said hub axle, said seal structure including a first maintaining portion positioned to keep the spokes in said retaining portions of said first spoke openings. 2. A bicycle hub according to claim 1, wherein said first maintaining portion includes a resilient portion. 3. A bicycle hub according to claim 2, wherein said seal structure is positioned between said hub axle and said hub body to isolate a first interior section of said interior passageway adjacent said first spoke openings. 4. A bicycle hub according to claim 3, wherein said first interior section of said interior passageway is a continuous annular first space. 5. A bicycle hub according to claim 4, wherein said first maintaining portion includes a first flange with a first groove formed in its outer peripheral surface. 6. A bicycle hub according to claim 3, wherein said seal structure includes a first tubular section with said first maintaining portion being a first flange extending radially outward from said first tubular section. 7. A bicycle hub according to claim 6, wherein said first flange is annular flange that extends in a circumferential direction about said first tubular section. 8. A bicycle hub according to claim 1, wherein said first spoke openings extend through a tubular portion of said hub body in a generally radial direction. 9. A bicycle hub according to claim 8, wherein said seal structure includes a first tubular section with said first maintaining portion being a first flange extending radially outward from said first tubular section. 10. A bicycle hub according to claim 1, wherein said first maintaining portion is an annular flange that is positioned to keep spokes in said retaining portions of said first spoke openings. 11. A bicycle hub according to claim 8, wherein each of said first spoke openings includes an additional retaining portion to retain the enlarged head portions of two spokes with in each of said first spoke openings. 12. A bicycle hub according to claim 11, wherein said seal structure includes a first tubular section with said first maintaining portion being a first flange extending radially outward from said first tubular section. 13. A bicycle hub according to claim 12, wherein said first flange is an annular flange with said first maintaining portion being positioned between ends of said first tubular section to axially separate said insertion portions from said retaining portions of each of said first spoke openings. 14. A bicycle hub according to claim 1, wherein said first spoke openings are arranged to form an outer circumferential row of said first spoke openings and an inner circumferential row of said first spoke openings that is axially spaced along said hub body from said outer circumferential row of said first spoke openings, said outer and inner circumferential rows of said first spoke openings are arranged to form a pair of said first spoke openings comprising one of said first spoke openings of said outer circumferential row and one of said first spoke openings of said inner circumferential row. 15. A bicycle hub according to claim 1, further comprising a freewheel coupled to said second end of said axle adjacent said second end section of said hub body. 16. A bicycle hub according to claim 1, wherein said hub body further includes a set of second spoke openings circumferentially arranged around said hub body at a location that is axially spaced from said first spoke openings, each of said second spoke openings having an insertion portion with a large width that permits an enlarged head portion of a spoke to pass therethrough and a retaining portion with a width that is smaller than said width of said insertion portion of said second spoke openings to retain the enlarged head portion of the spoke therei