Patent EA-001254-B1 (EA)
Title: Suction nozzle for vacuum cleaner
Inventor: LEE DONG YOOL
IPC: A61H39/04
Filed: 1999-08-31
Abstract: 1. A suction nozzle for a vacuum cleaner comprising: a suction nozzle body including a main air flow passage having a main suction hole for drawing external air and a discharge hole for providing the drawn air to a body of the vacuum cleaner and a supplementary air flow passage having a supplementary air flow passage for drawing external air and an opening for providing the external air drawn through the supplementary suction hole to the main air flow passage and  vibration generating means mounted in the supplementary air flow passage for generating a vibrating force by an air flow drawn through the supplementary suction hole. 2. A suction nozzle as claimed in claim 1, wherein the supplementary air flow passage includes a housing, having an opened portion fitted to an inside of the suction nozzle body such that the opened portion is in communication with the supplementary suction hole, and  an opening in communication with the main air flow passage. 3. A suction nozzle as claimed in claim 2, wherein the vibration generating means includes; a duct having an opened upper end and an opened lower end both for allowing air flow and a'floW passage at one side thereof connected to the opening, a moving member disposed in the duct for making up and down movements according to a suction direction of the air drawn into the duct, and a vibrating member adapted to make up and down movements following the up and down movements of the moving member for selectively opening and closing an upper end and a lower end of the duct and. on the same time, generating vibration. 4. A suction nozzle as claimed in claim 3, wherein the duct includes a plurality of guide pieces fitted to an outside surface of the duct at fixed intervals for guiding the up and down movements of the vibrating member. 5. A suction nozzle as claimed in claim 3, wherein the moving member includes at least one moving plate having a diameter smaller than an inside diameter of the duct. 6. A suction nozzle as claimed in claim 5, wherein the moving member includes: an upper plate adapted to receive a rising force by the air flowing in from a bottom of the duct, a lower plate adapted to receive a dropping force by the air flowing in from a top of the duct, and connecting members for connecting the upper plate and the lower plate. 7. A suction nozzle as claimed in claim 6, wherein the connecting members in the moving member are fitted tilted at angles to a vertical line for causing the moving member to make the up and down movements while the moving member rotates. 8. A suction nozzle as claimed in claim 6, wherein the moving member further includes a supplementary moving plate between the upper plate and the lower plate. 9. A suction nozzle as claimed in claim 3, wherein the vibrating member includes: an upper cover for selectively opening and closing a top of the duct according to a rise of the moving member, a tower cover for selectively opening and closing a bottom of the duct according to a drop of the moving member, and a connecting shaft for connecting the upper cover and the lower cover. 10. A suction nozzle as claimed in claim 9, wherein sound absorbing and vibration damping material is fitted to at least one surface of an upper surface and a lower surface of the upper cover and the lower cover. 11. A suction nozzle as claimed in claim 9, wherein the connecting shaft has a lower end extended to pass through a bottom surface of the housing and fixed to a vibration plate, so that the vibration plate directly hits the suction nozzle body when the vibrating member makes a down movement, for generating vibration. 12. A suction nozzle as claimed in claim 11, wherein the sound absorbing and vibration damping material is fitted to an upper surface of the vibration plate. 13. A suction nozzle as claimed in claim 9, wherein the connecting shaft has a lower end extended to pass through a bottom surface of the housing and fixed to a vibration plate, so that the vibration plate directly hits the bedding when the vibrating member makes a down movement, for generating vibration. 14. A suction nozzle as claimed in claim 13. wherein the suction nozzle body has a recess in the bottom thereof for mounting the vibration plate therein. 15. A suction nozzle as claimed in claim 14, wherein the vibration plate is disposed in front of the main suction hole of the suction nozzle body. 16. A suction nozzle as claimed in claim 1, wherein a plurality of the vibration generating means are provided to given locations in the supplementary air flow passage. 17. A suction nozzle as claimed in claim 1, wherein the supplementary air flow passage includes: an upper partition wall formed an inside of an upper side of the suction nozzle body, and a lower partition wall formed an inside of a lower side of the suction nozzle body, wherein there is an opening formed between the upper partition wall and the lower partition wall. 18. A suction nozzle as claimed in claim 17, wherein the vibration generating means includes: a duct having an opened upper end and an opened lower end both for allowing air flow and a flow passage at one side thereof connected to the opening, a moving member disposed in the duct for making up and down movements according to a suction direction of the air drawn into the duct, and a vibrating member adapted to make up and down movements following the up and down movements of the moving member for selectively opening and closing an upper end and a lower end of the duct and, on the same time, generating vibration. 19. A suction nozzle as claimed in claim 18. wherein the moving member includes: an upper plate adapted to receive a rising force by the air flowing in from a bottom of the duct, a lower plate adapted to receive a dropping force by the air flowing in from a top of the duct, and connecting members for connecting the upper plate and the lower plate. 20. A suction nozzle as claimed in claim 19, wherein the vibrating member includes: an upper cover for selectively opening and closing a top of the duct according to a rise of the moving member, a lower coverfor selectively opening and closing a bottom of the duct according to a drop of the moving member, and a connecting shaft for connecting the upper cover and the lower cover. 21. A suction nozzle as claimed in claim 20, wherein the connecting shaft has a lower end extended to pass through a bottom surface of the housing and fixed to a vibration plate, so that the vibration plate directly hits the suction nozzle body when the vibrating member makes a down movement, for generating vibration. 22. A suction nozzle as claimed in claim 21, wherein the suction nozzle body has a recess in the bottom thereof for mounting the vibration plate therein forming the main suction hole. 23. A suction nozzle as claimed in claim 22, wherein the vibration plate is formed along a longitudinal direction of the suction nozzle body and has a plurality of projections on a bottom surface thereof. 24. A suction nozzle as claimed in claim 23. wherein the projections have a plurality of supplementary projections on a bottom of the projections. 25. A suction nozzle as claimed in claim 21, wherein a plurality of sound absorbing material pieces are fitted at least one of the upper surface of the vibration plate and the bottom surface of the suction nozzle body. 26. A suction nozzle as claimed in claim 21, wherein a plurality of hollow guide members are formed inside of the suction nozzle body and a plurality of projections are formed on an upper surface of the vibration plate for being guided by the guide members. 27. A suction nozzle as claimed in claim 21, wherein the supplementary suction hole has sound absorbing material fitted thereto. 28. A suction nozzle as claimed in claim 21, wherein the supplementary suction hole has a cover fitted thereto adapted to open/close the supplementary air flow passage for selective operation of the vibration plate. 29. A suction nozzle as claimed in claim 21, wherein the suction nozzle body includes: a transparent window at a give location for looking at an operation state of the vibration generating means. 30. A suction nozzle as claimed in claim 21, wherein projections are formed on one of the upper surface and the lower surface of the upper cover and the lower cover. 31. A suction nozzle as claimed in claim 21, wherein supporting members are provided inside of the suction nozzle body for supporting the duct. 32. A suction nozzle as claimed in claim 21, wherein a hook is formed at the top end and the bottom end of the connecting shaft respectively and a rib is formed below each of the hooks for prevention of movement of the upper cover and the lower cover, the hook having an outside diameter greater than an outside diameter of the connecting shaft with a cut off middle portion. 33. A suction nozzle as claimed in claim 21, wherein the a bottom plate is detachably mounted in the recess for disassembling in cleaning. 34. A suction nozzle as claimed in claim 33, wherein the bottom plate includes: a first longitudinal member located in rear of the vibration plate and having a plurality of recessed in a bottom surface thereof for reducing friction, and a second longitudinal member located in rear of the main suction hole and having ribs projected from a bottom surface thereof for concentration of a suction force toward the main suction hole. 35. A suction nozzle as claimed in claim 34, wherein a plurality of transverse ribs each with a given curvature are provided in rear of the First longitudinal member, for reducing friction. 36. A suction nozzle as claimed in claim 34, wherein a transverse recess is formed in front of the rib. 37. A suction nozzle as claimed in claim 33, wherein the bottom plate includes a plurality of transverse members for preventing the vibration plate from being stopped. 38. A suction nozzle as claimed in claim 21, wherein a supplementary wheel of a given diameter is fitted to the bottom of the