초록 ▼

A coffee maker has a main body which has a jug stand and a support portion parallel to the base at a predetermined distance therefrom. A cylindrical jug for storing brewed coffee is placed on the jug stand. A cylindrical extractor is placed on the jug. A cylindrical mill case for storing coffee bean

A coffee maker has a main body which has a jug stand and a support portion parallel to the base at a predetermined distance therefrom. A cylindrical jug for storing brewed coffee is placed on the jug stand. A cylindrical extractor is placed on the jug. A cylindrical mill case for storing coffee beans is detachably mounted on the support portion to be located above the extractor. A motor is mounted on the support portion and housed in the mill case. A cutter is mounted on a rotating shaft of the motor and located in the mill case. The cutter is driven by the motor to grind coffee beans in the mill case. The mill case has a supply port facing the extractor through which the coffee ground in the mill case is supplied to the extractor. The mill case, extractor, and jug are vertically aligned to be coaxial with each other.

대표청구항 ▼

1. A coffee maker comprising: a main body having a base forming a jug stand, a straight portion extending vertically upwardly from said base, and a support portion extending from said straight portion and spaced apart from said base at a predetermined distance and substantially parallel to said b

1. A coffee maker comprising: a main body having a base forming a jug stand, a straight portion extending vertically upwardly from said base, and a support portion extending from said straight portion and spaced apart from said base at a predetermined distance and substantially parallel to said base; a jug for storing brewed coffee placed on said jug stand, said jug having substantially a cylindrical shape with bottom and top ends and a bottom wall at said bottom end; an extractor placed over said jug and having an extractor main body of a substantially cylindrical shape with an upper and lower end and formed with an opening at said upper end thereof, said lower end of said extractor main body being supported on said top end of said jug; a mill case for storing coffee beans having a substantially cylindrical shape with a first and second end, said first end being detachably mounted on said support portion and said second end being adjacent to and opposing said opening of said extractor main body; a motor mounted on said support portion and housed in said mill case to define a milling space with the inner surface of said mill case; a cutter arranged in said milling space and driven by said motor to grind coffee beans in said mill case, said mill case having a dispensing port facing said extractor through which the coffee ground in said mill case is supplied to said extractor; a tank for storing water mounted in said main body; and hot water supply means, disposed in said main body, for heating water in said water tank and for supplying hot water to said extractor, wherein said mill case, said extractor and said jug are vertically aligned to be coaxial with each other; and wherein said mill case and said support portion have mounting means for detachably mounting said first end of said mill case on said support portion, said mounting means having a plurality of projections formed on the outer surface at said first end portion of said mill case to be spaced apart from each other, and a plurality of elongated holes which respectively engage said plurality of projections. 2. A coffee maker according to claim 1, wherein said mill case has a bottom plate which closes said second end thereof, said dispensing port being formed in said bottom plate, and said mill case has opening/closing means for opening/closing said dispensing port. 3. A coffee maker according to claim 2, wherein said motor has a rotating shaft coaxial with said mill case and extending to the vicinity of said second end of said mill case, said cutter being mounted on the extended end of said rotating shaft. 4. A coffee maker according to claim 3, wherein said extractor has a filtration funnel extending from the edge of said upper end of the extractor main body into said jug, and a paper filter detachably placed in said filtration funnel, said filtration funnel having an extraction port formed at the extended end thereof. 5. A coffee maker according to claim 4, wherein said hot water supply means includes a heating place disposed in said base of said main body; a heat conduction plate disposed to be in tight contact with said heating plate and to form a bottom surface of said jug stand; a heating tube disposed in said heating plate, said heating tube having an entrance end connected to said water tank; a hot water supply tube connected to the exit end of said heating tube and extending upward through said straight portion; a hot water supply arm extending from the extended end of said hot water supply tube to above said opening of said exterior main body through said main body, said hot water supply arm having a hot water supply port opening at said opening of said extractor main body; and a sheath heater embedded in said heating plate to be parallel to said heating tube, said sheath heater being adapted to heat said jug through said heating plate and said heat conduction plate and to heat water flowing in said heating tube from said water tank, whereby hot water in said heating tube flows by boiling pressure through said hot water supply tube and said hot water supply arm and drips in said filtration funnel through said hot water supply port. 6. A coffee maker according to claim 2, wherein said opening/closing means includes a disc-shaped rotary plate rotatably mounted on said bottom plate to oppose said bottom plate and to be adjacent thereto; a lever for pivoting said rotary plate, extending outward from a periphery of said rotary plate; and a through hole formed in said rotary plate for opposing said dispensing port upon movement of said rotary plate. 7. A coffee maker according to claim 1, wherein said dispensing port is defined by a peripheral portion of said second end of said mill case, and said mill case has a filter detachably mounted on said second end of said mill case to close said dispensing port, said filter being adapted to filter the ground coffee having a predetermined particle size. 8. A coffee maker according to claim 7, wherein said motor has a rotating shaft coaxial with said mill case and extending to the vicinity of said dispensing port, said cutter being mounted on the extended end of the rotating shaft. 9. A coffee maker according to claim 8, wherein said mill case has a tapered portion which is gradually decreased from a portion of said mill case which corresponds to said dispensing port to another portion of said mill case which surrounds said cutter. 10. A coffee maker according to claim 9, wherein said mill case has collecting means for collecting astringent layers of coffee beans which are scattered when the coffee beans are milled. 11. A coffee maker according to claim 10, wherein said collecting means has a collector detachably mounted on an outer surface portion at said first end of said mill case and an intake port formed in said outer surface portion at said first end of said mill case so as to communicate the interior of said mill case with said collector, said collector having an outflow port, and a cover closing said outflow port and having a plurality of through holes. 12. A coffee maker according to claim 1, further including feeding means for feeding coffee beans through the upper portion of the wall of said mill case. 13. A coffee maker according to claim 12, wherein said feeding means includes a coffee bean container mounted on an outer surface of said mill case, said coffee beam container having a feed port for feeding coffee beans into said coffee bean container, and a discharging port which communicates with said interior of said mill case; a shutter pivotally mounted in said coffee bean container to open/close said discharging port; a biasing member for biasing said shutter to close said discharging port; and an operation member disposed to pivot said shutter against a biasing force of said biasing member by an operation external to said mill case. 14. A coffee maker according to claim 13, wherein said coffee bean container has a plurality of calibration steps which are formed on the inner surface of said container to be spaced from each other at predetermined intervals and which serve as a scale for measuring an amount of coffee beans. 15. A coffee maker according to claim 1, wherein: said dispensing port is defined by a peripheral portion of said second end of said mill case; said mill case has a support frame detachably mounted at said second end thereof and having a support located substantially at a center of said dispensing port, and a filter mounted on said support frame to close said dispensing port and to filter the ground coffee having a predetermined particle size therethrough; said cutter has a boss rotatably mounted on said support of said support frame to extend from said support frame to the interior of said mill case, cutter blades extending from said boss along a radial direction of said mill case, and a groove formed in said boss; and said motor has a rotating shaft coaxial with said mill case and extending to the vicinity of said dispensing port, and a coupling pin mounted on the extended end of said rotating shaft and radially extending outward from said rotating shaft, said extended end of said rotating shaft and said coupling pin being detachably engaged in said groove. 16. A coffee maker according to claim 1, wherein said straight portion is divided into a first portion extending upward from said base and a second portion supporting said support portion, said second portion being supported by said first portion to pivot between a first position where said second end of said mill case is adjacent to and opposes said upper end of said extractor main body and a second position where said second end of said mill case is separated from said upper end of said extractor main body, and said straight portion has retaining means for retaining said second portion in one of said first and second positions. 17. A coffee maker according to claim 16, wherein said mill case has a cylindrical filter mounting portion coaxially mounted at said second end of said mill case to engage said upper end of said extractor main body in said first position. 18. A coffee maker according to claim 1, wherein said support portion is slidably mounted on said straight portion along an axial direction of said mill case between a first position where said second end of said mill case is adjacent to and opposes said upper end of said extractor main body and a second position where said second end of said mill case is separated from said upper end of said extractor main body. 19. A coffee maker according to claim 1, further including substantially cylindrical motor case mounted on said support portion to cover said motor and disposed coaxially within said mill case, and elastic members disposed between said motor and said support portion and between said motor and said motor case to elastically hold said motor in said motor case, and wherein said milling space is defined by an outer surface of said motor case and said inner surface of said mill case, and said motor has a rotating shaft coaxial with said mill case and extending to the vicinity of said second end of said mill case through said motor case. 20. A coffee maker according to claim 1, further including a safety switch connected in series with said motor to energize said motor only when said mill case is mounted on said support portion and said second end of said mill case is adjacent to and opposes said upper end of said extractor main body. 21. A coffee maker comprising: a main body having a base forming a jug stand, a straight portion extending vertically upwardly from said base, said straight portion is divided into a first portion extending upward from said base and a second portion, said second portion being supported by said first portion to be pivotable, a support portion extending from said second portion and spaced apart from said base at a predetermined distance and substantially parallel to said base; a jug for storing brewed coffee placed on said jug stand; an extractor placed over said jug; a mill case for storing coffee beans detachably mounted on said support portion above said extractor; a motor mounted on said support portion and housed in said mill case to define a milling space with the inner surface of said mill case; a cutter arranged in said milling space and driven by said motor to grind coffee beans in said mill case, said mill case having a dispensing port facing said extractor through which the coffee ground in said mill case is supplied to said extractor; a tank for storing water mounted in said main body; and hot water supply means, disposed in said main body, for heating water in said water tank and for supplying hot water to said extractor; and wherein said second portion being pivotable between a first position where said dispensing port of said mill case is adjacent to and opposes said extractor and a second position where said dispensing port is separated from said extractor.