초록 ▼

An automatically engageable and releasable brake apparatus for a wheelchair, including a connection mechanism adapted to be attached to a portion of the frame of the wheelchair proximate a rear wheel of the wheelchair, a seat actuation member extending from a portion of the connection mechanism and

An automatically engageable and releasable brake apparatus for a wheelchair, including a connection mechanism adapted to be attached to a portion of the frame of the wheelchair proximate a rear wheel of the wheelchair, a seat actuation member extending from a portion of the connection mechanism and adapted to be positioned substantially beneath the seat of the wheelchair, a shaft member positioned to extend substantially downwardly from a portion of the connection mechanism and a friction member positioned proximate the other end of the shaft member and adapted to contact the ground. Occupational ingress activates the seat actuation member to move from a first position to a second position, which causes the shaft member to rotate in concert therewith such that the friction member also moves from a first position in substantial contact with the ground to a second position spaced a distance above the ground.

대표청구항 ▼

An automatically engageable and releasable brake apparatus for a wheelchair, including a connection mechanism adapted to be attached to a portion of the frame of the wheelchair proximate a rear wheel of the wheelchair, a seat actuation member extending from a portion of the connection mechanism and

An automatically engageable and releasable brake apparatus for a wheelchair, including a connection mechanism adapted to be attached to a portion of the frame of the wheelchair proximate a rear wheel of the wheelchair, a seat actuation member extending from a portion of the connection mechanism and adapted to be positioned substantially beneath the seat of the wheelchair, a shaft member positioned to extend substantially downwardly from a portion of the connection mechanism and a friction member positioned proximate the other end of the shaft member and adapted to contact the ground. Occupational ingress activates the seat actuation member to move from a first position to a second position, which causes the shaft member to rotate in concert therewith such that the friction member also moves from a first position in substantial contact with the ground to a second position spaced a distance above the ground. between said parts, comprising: a brush seal formed from bristles arranged into a wall shape, and including an attachment portion formed by connecting said bristles together at one end, and a free end face facing an opposing surface of said other part; a back plate connected to said attachment portion of said brush seal, and including a support surface for supporting a side surface of said brush seal, said support surface having an annular protection extending therefrom, and said back plate further including a recess that accommodates a bended portion of said bristles resulting from a differential pressure; and a retaining plate for retaining said attachment portion of said brush seal between said retaining plate and said back plate, wherein said support surface of said back plate and an opposing surface of said brush seal are disposed at a distance from each other, and said bristle of said brush seal has a diameter of 0.15 mm to 0.008 mm, and wherein said annular projection is disposed in a center of said support surface. ch member.13. The scooter set forth in claim 1, further including an outrigger structure for attaching each said rear wheel to said scooter so that each said rear wheel is outwardly displaced from said footboard supported by said rearwardly extending branch member.14. The scooter set forth in claim 1, further including a rearward outrigger structure for attaching said rear wheel at a rearward most point on said rearwardly extending branch member away from said front wheel.15. The scooter set forth in claim 1, in which each said rear wheel is a roller skate wheel.16. A scooter as set forth in claim 1, in which said rear end wheel is supported on a retractable axle to facilitate its replacement.17. The scooter set forth in claim 1 further comprising a pair of brackets, wherein each said bracket supports one of said pair of rear wheels.18. The scooter set forth in claim 17 wherein said pair of brackets may be adjustably positioned along the length of its associated said rearwardly extending branch member. ergy air jet acts for about 0.1 second to 0.5 second.9. The process according to claim 1, wherein compressed air with a pressure of about 5 bar to 15 bar is used to generate the directed high-energy air jet.10. The process according to claim 9, wherein compressed air with a pressure of about 7 bar to 10 bar is used to generate the directed high-energy air jet.11. The process according to claim 1, wherein the directed high-energy air jet has a flow velocity in a range of the velocity of sound.12. The process according to claim 1, wherein a separator device forms the directed high-energy air jet, and said separator device is positioned at a distance of 1 mm to 10 mm from the winding roll.13. The process according to claim 12, wherein said at least one separator device is positioned at a distance of 2 mm to 5 mm from the winding roll.14. The process according to claim 1, wherein after transfer and application of the detached transfer strip to an outer circumferential area of the new winding core, the running material web is completely cut through by the at least one cutting unit.15. The process according to claim 14, wherein the at least one cutting unit is moved in an approximately parallel plane relative to the running material web.16. The process according to claim 15, wherein the at least one cutting unit is moved at least substantially perpendicular to the web travel direction of the running material web to produce an oblique cutting line.17. The process according to claim 16, wherein the at least one cuffing unit is moved at a substantially constant speed.18. The process according to claim 17, wherein the substantially constant speed comprises a speed of about 10 m/s to 40 m/s.19. The process according to claim 1, wherein the at least one cutting unit comprises two cutting units.20. The process according to claim 19, wherein the two cutting units are mounted at spaced locations of the running material web in the web travel direction, each at least substantially centered regarding the cross-direction of the material web.21. The process according to claim 20, wherein each of the two cutting units is moved to an adjacent web edge of the running material web to cut through the running material web.22. The process according to claim 1, wherein the at least one cutting unit is located in an area of one of the two web edges of the material web, and at a distance from the edge.23. The process according to claim 22, wherein the at least one cutting unit is moved to the opposite web edge of the running material web to cut the running material web.24. The process according to claim 1, wherein the at least one cutting unit comprises two cutting units, each of said two cutting units being located in an area of a web edge, and at a distance from the edge.25. The process according to claim 24, wherein the two cutting units are moved at least up to the center of the running material web to cut through the running material web.26. The process according to claim 1, wherein during or after transfer and application of the detached transfer strip to an outer circumferential area of the new winding core, the at least one cutting unit is taken out of operation.27. The process according to claim 26, wherein at the same time that the at least one cutting unit is taken out of operation, the running material web is impinged by at least one second blower device to tear the material web.28. The process according to claim 27, wherein the web tears crosswise to the web travel direction towards the at least one web edge.29. The process according to claim 28, wherein compressed air with a pressure of about 5 bar to 15 bar is used in operating the at least one second blower device.30. The process according to claim 29, wherein compressed air with a pressure of about 7 bar to 10 bar is used in operating the at least one second blower device.31. The process according to claim 29, wherein the compressed air tearing the material web comprises a flow velocity in the range of the velocity of sound.32. The process according to claim 1, wherein the nip is maintained between the almost formed wound reel and the winding roll until cuffing of the running material web has been completed.33. The process according to claim 1, wherein before making the at least one cut in the running material web with the at least one cutting unit forming at least one transfer strip which is incorporated in the material web, the almost formed wound reel is moved away from the winding roll forming a free draw in the running material web.34. The process according to claim 1, wherein after making the at least one cut in the running material web with the at least one cuffing unit forming at least one transfer strip which is incorporated in the material web, and before complete severance of the running material web, the almost formed wound reel is moved away from the winding roll, forming a free draw in the running material web.35. The process according to claim 1, wherein at least one separator device forms the directed high-energy air jet, and the at least one separator device and the at least one first blower device are brought to a hold position.36. The process according to claim 35, wherein the hold position is outside a working area of the winding roll and the winding reel.37. The process according to claim 36, wherein the at least one separator device and the first blower device are brought to the hold position after the transfer strip has been applied to an outer circumferential area of the new winding core.38. The process according to claim 24, wherein the transfer strip is applied to an outer circumferential area of the new winding core using at least one application device located downstream of the first blower device, and the at least one application device is brought into a hold position.39. The process according to claim 1, wherein the material web comprises a paper or cardboard web.40. The process according to claim 1, wherein the at least one first blower device comprises a blower shoe.41. The process according to claim 1, wherein the winding cores are reel spools.42. The process according to claim 1, wherein the winding roll is a reel drum.43. The process according to claim 1, wherein the new winding core is brought directly to the winding roll.44. The process according to claim 1, wherein the at least one cut is made running parallel to the web edge of the running material web and in the web travel direction of the running material web.45. The process according to claim 1, wherein the at least one first blower device transfers and applies the at least one detached transfer strip onto the outer circumferential area of the new winding core.46. A winding apparatus for winding a running material web, comprising: a winding roll over a partial outer circumferential area of which a running material web adapted to be guided; a plurality of winding cores onto which a running material web is consecutively wound with winding on a new winding core being started each time a wound reel formed on a previous winding core has reached a predetermined diameter; said winding roll and said new winding core being constructed and arranged so that a new and pre-accelerated winding core is brought to the winding roll and forms a nip, and the running material web is capable of being guided over a partial outer circumferential area of the winding roll, through the nip, and wound on the new winding core; at least one cutting unit capable of making at least one cut in the running material web in front of or on the winding roll with formation of at least one transfer strip which is incorporated into the running material web; at least one separator device capable of detaching and simultaneously cuffing the at least one formed transfer strip after passing through the nip, which is incorporated in the running material web, from the outer circumferential area of the winding roll by a brief and directed high-energy ai