An automatic juicer turns and pushes an upward facing juicing cone into a fruit for releasing and collecting juice. The juicer includes a base containing a clutch and gearing assembly connected to a motor. A center column assembly rotates and advances the juicing cone. The juicing cone, strainer, an
An automatic juicer turns and pushes an upward facing juicing cone into a fruit for releasing and collecting juice. The juicer includes a base containing a clutch and gearing assembly connected to a motor. A center column assembly rotates and advances the juicing cone. The juicing cone, strainer, and a bowl release and catch the juice. The center column includes an outer column fixed to the base, a rotating drive shaft driven by the motor but not advancing vertically, and a driven shaft which rotates with the drive shaft and advances and retreats vertically. The bowl is fixed to the base. The strainer advances vertically with juicing cone but does not rotate. The juicing cone is attached to the driven shaft and rotates and advances vertically, thereby releasing juice from the fruit. Knife edges on the bottom of the juicing cone scrape pulp from the strainer to prevent clogging.
대표청구항▼
1. An automatic juicer comprising: a lid openable to allow fruit to be placed in the juicer;a base containing a motor;a center column assembly attached to the base and comprising: an outer column fixed to the base;a hollow vertical drive shaft residing in the outer column, turned by the motor, and v
1. An automatic juicer comprising: a lid openable to allow fruit to be placed in the juicer;a base containing a motor;a center column assembly attached to the base and comprising: an outer column fixed to the base;a hollow vertical drive shaft residing in the outer column, turned by the motor, and vertically fixed and including a threaded cylindrical exterior and at least one vertical keyway reaching radially through the hollow vertical drive shaft; anda driven shaft which rotates with the drive shaft and advances vertically with respect to the drive shaft and including at least one protruding key for cooperation with the vertical keyway in the drive shaft to cause the driven shaft to rotate with the driveshaft;a nut resides inside the outer column and on the threaded cylindrical exterior of the drive shaft, the nut including internal threads for cooperation with the threaded cylindrical exterior of the drive shaft and the nut cooperating with the fixed outer column to prevent the nut from rotating causing the nut to advance and retreat vertically when the drive shaft rotates, the protruding key of the driven shaft resting on top of the nut, wherein the vertical advancing of the nut lifts the driven shaft;a bowl attached to the base; anda juicing cone attached to the driven shaft and rotates and advances vertically with the driven shaft, for rotating and pushing into a fruit for releasing juice from the fruit to be caught in the bowl. 2. The juicer of claim 1, further including a strainer between the bowl and the juicing cone. 3. The juicer of claim 2, wherein, the strainer advances vertically with the juicing cone. 4. The juicer of claim 3, wherein: the strainer does not rotate; andthe juicing cone includes knife edges on a bottom surface for clearing pulp blocking the strainer. 5. The juicer of claim 3, wherein the strainer does not rotate. 6. The juicer of claim 5, wherein the strainer includes a key and at least one of the bowl and the lid includes a key way for cooperation with the key to prevent rotation of the strainer. 7. The juicer of claim 1, wherein: the nut includes at least one exterior notch;the outer column includes an interior vertical rail; andcooperation of the at least one exterior notch with the interior vertical rail prevents rotation of the nut with respect to the outer column. 8. The juicer of claim 7, wherein: the drive shaft includes at least two vertical slots;the driven shaft includes at least two keys; andthe at least two keys slide vertically in the vertical slots and couples rotation of the drive shaft to the driven shaft. 9. The juicer of claim 1, wherein the base further includes a clutch and gearing assembly between the motor and the drive shaft to reduce a rotation rate and to limit the force exerted on fruit by the juicing cone. 10. The juicer of claim 9, wherein the motor runs in two directions to either vertically advance or vertically retreat the juicing cone. 11. The juicer of claim 9, wherein the direction of the motor is initially to advance the juicing cone into the fruit, and after a period of time the direction of the motor reverses to vertically retreat the juicing cone from the fruit. 12. The juicer of claim 9, wherein the direction of the motor is initially to advance the juicing cone into the fruit, and after a preset resistance to advancing the juicing cone into the fruit is experienced, the direction of the motor reverses to vertically retreat the juicing cone from the fruit. 13. The juicer of claim 9, wherein the vertical advancing of the juicing cone is limited to prevent the juicing cone from cutting into a rind of the fruit. 14. The juicer of claim 13, wherein the vertical advancing of the juicing cone is limited by cooperation of a stop on the juicing cone with a seat in the lid. 15. An automatic juicer comprising: a base containing a motor;a lid openable to allow fruit to be placed in the juicer;a clutch and gearing assembly connected to the motor;a center column assembly fixed to the base and comprising: a vertical outer cylinder fixed to the base, and having a rail on an inside surface of the outer cylinder extending vertically inside the outer cylinder;a drive shaft residing inside the outer cylinder and turned by the motor through the clutch and gearing assembly, the drive shaft not advancing or retreating vertically;a driven shaft rotating with the drive shaft and advancing and retreating vertically; anda nut residing inside the outer cylinder and constrained to not rotate by the cooperation of notches on an outer surface of the nut with rail inside the outer cylinder and threadedly coupled to the drive shaft to advance and retreat vertically when the drive shaft rotates and vertically coupled with the driven shaft to advance the driven shaft vertically; the driven shaft including at least one protruding key cooperating with a vertical keyway in the drive shaft, the protruding key of the driven shaft resting on top of the nut;a bowl fixed to the base;an upward facing juicing cone for rotating and pushing into a fruit, the juicing cone attached to the driven shaft and rotates and advances vertically with the driven shaft, thereby releasing juice from the fruit. 16. An automatic juicer comprising: a base;a motor residing in the base;a clutch and gearing assembly residing in the base and connected to the motor, the clutch and gearing assembly providing a reduced rotation rate;a lid pivotally attached to the base to allow fruit to be placed in the juicer;a center column assembly fixed to the base and comprising: a vertical outer column fixed to the base;a drive shaft residing inside the outer column and turned at the reduced rotation rate by the motor through the clutch and gearing assembly, the drive shaft not advancing or retreating vertically;a driven shaft rotating with the drive shaft and advancing and retreating vertically;a nut residing inside the outer column and constrained to not rotate by cooperation of the nut with the outer column and threadedly coupled to the drive shaft to advance and retreat vertically when the drive shaft rotates and vertically coupled with the driven shaft to advance the driven shaft vertically; the driven shaft including at least one protruding key cooperating with a vertical keyway in the drive shaft, the protruding key of the driven shaft resting on top of the nut;a spring for applying downward force to the driven shaft;a fruit holder fixed inside the lid;an upward facing juicing cone for rotating and pushing into a fruit, the juicing cone attaches to the driven shaft and rotates and advances vertically with the driven shaft, thereby releasing juice from the fruit, the advancing vertically of the juicing cone limited to at least one of prevent and reduce the juicing cone cutting into rind of the fruit and force exerted by the juicing cone against the fruit limited by the clutch and gearing assembly;a bowl fixed to the base to catch juice released by the juicing cone; anda non-rotating strainer between the bowl and the juicing cone for straining the juice released by the juicing cone, the strainer advancing vertically with the juicing cone and the juicing cone having blades residing proximal to an upper surface of the strainer to scrape pulp from the upper surface of the strainer to at least one of prevent and reduce blockage of the strainer.
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이 특허에 인용된 특허 (7)
Maoz Chaim, Apparatus for controlled cracking of nut-like fruits and the like.
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