Juice squeezing module for juicer

The technology relates to a juice squeezing module for a juicer including: a juice squeezing drum mounted on a body of the juicer in such a manner as to be open on the top surface thereof and an engagement gear disposed on the edge of the periphery of the bottom surface thereof; a cap adapted to cover the top surface of the juice squeezing drum; a juice squeezing screw rotatably mounted at the inside of the juice squeezing drum; a screen drum mounted at the inside of the juice squeezing drum; a rotating brush adapted to brush the juice squeezing drum and the screen drum and having a brush ring gear connected to the engagement gear; and brush rotating means disposed on the underside of the juice squeezing drum to transmit the driving force of a driving shaft of the body to the engagement gear to rotate the rotating brush.

BACKGROUND OF THE INVENTION

Field of the Invention

The present invention relates to a juice squeezing module for a juicer, and more particularly, to a juice squeezing module for a juicer that improves the structure in brush rotating means for driving a rotating brush adapted to continuously brush the inner peripheral surface of a juice squeezing drum and the outer peripheral surface of a screen drum.

Background of the Related Art

With the high interest in wellbeing and organic products, generally, many peoples drink the juice extracted from vegetables and fruits in their houses. Accordingly, many studies and developments on juicers used in houses have been continuously made.

As shown inFIGS. 1 and 2, an example of such juicers is disclosed in Korean Patent No. 0755440 wherein the juicer includes: a cap110having an injection hole111and a rotary shaft hole112formed at the center of the interior thereof; a juice squeezing drum120disposed on the underside of the cap110and having a screen drum guide projection121formed on the underside periphery thereof, a remnant discharging hole122and a juice discharging hole123extended outward from the lower end periphery thereof, a waterproofing cylinder124having a through hole124aformed at the lower end portion of the center thereof, a pressure discharging passage125formed along the lower end periphery of the waterproofing cylinder124, a first opening126formed on the screen drum guide projection121in such a manner as to communicate with the pressure discharging passage125, and an engagement gear127rotatably disposed on the first opening126; a juice squeezing screw130having an upper rotary shaft131formed on the top portion thereof in such a manner as to be rotatably inserted into the rotary shaft hole112, a plurality of screw spiral lines132formed on the outer peripheral surface thereof, a screw ring gear133protruding from the lower end periphery thereof in such a manner as to be inserted into the pressure discharging passage125and engaged with the engagement gear127, a lower space135formed at the inside of the screw ring gear133in such a manner as to insert the waterproofing cylinder121thereinto, and a lower rotary shaft134having a polygonal shaft hole134aformed at the center of the lower portion thereof; a screen drum140disposed inside the juice squeezing drum120and having a screen structure141as an external wall thereof and a plurality of wall blades142formed on the inner peripheral surface thereof; a rotating brush150rotatably mounted between the juice squeezing drum120and the screen drum140and having brush members151aand151badapted to continuously brush the juice squeezing drum120and the screen drum140and a brush ring gear152mounted on the underside thereof in such a manner as to be engaged with the engagement gear127; and a driving body160having a driving motor (not shown) mounted at the inside thereof and a polygonal shaft161of the driving motor inserted into the polygonal shaft hole134aof the juice squeezing screw130through the through hole124aof the waterproofing cylinder124to rotate the juice squeezing screw130.

In this case, the engagement gear127is engaged with the screw ring gear133at the inside of the screen drum guide protrusion121and at the same time engaged with the brush ring gear152at the outside of the screen drum guide protrusion121. Accordingly, the juice squeezing screw130, which receives the power from the polygonal shaft161of the driving body160, transmits the received power to the engagement gear127through the screw ring gear133. At this time, as shown inFIG. 2, if the juice squeezing screw130rotates in a clockwise direction, the engagement gear127rotates in a counterclockwise direction. Next, the rotating brush150engaged with the engagement gear127by means of the brush ring gear152rotates in the counterclockwise direction according to the rotation of the engagement gear127in the counterclockwise direction, thus continuously brushing the inner peripheral surface of the juice squeezing drum120and the outer peripheral surface of the screen drum140through the brush members151aand151b.

In case of the conventional juicer, however, remnants may be undesirably mixed with the juice discharged to the outside of the screen drum140, through the first opening126in which the engagement gear127is rotatably disposed.

Further, since the engagement gear127, which is engaged with the screw ring gear133and the brush ring gear152, is structurally disposed on the bottom surface of the juice squeezing drum120in such a manner as to be connected to the underside of the juice squeezing screw130, the freedom of design on the interior of the juice squeezing drum120may be decreased.

SUMMARY OF THE INVENTION

Accordingly, the present invention has been made in view of the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a juice squeezing module for a juicer wherein an engagement gear for engagedly rotating a rotating brush is not disposed on the area of the bottom surface of a juice squeezing drum wherein a juice squeezing screw is mounted, thus preventing remnants from being introduced into juice and further improving the freedom of design on the bottom surface of the juice squeezing drum.

To accomplish the above object, according to a first aspect of the present invention, there is provided a juice squeezing module for a juicer adapted to be mounted on a body of the juicer with a driving shaft protruding upward therefrom to perform a juice squeezing operation, the juice squeezing module including: a juice squeezing drum mounted on the body of the juicer in such a manner as to be open on the top surface thereof and having a juice discharging hole and a remnant discharging hole formed on the lower end periphery thereof and an engagement gear disposed on the edge of the periphery of the bottom surface thereof; a cap adapted to cover the top surface of the juice squeezing drum and having an injection hole formed on the top side thereof; a juice squeezing screw rotatably mounted at the inside of the juice squeezing drum and having screw spiral lines formed on the outer peripheral surface thereof and a power connector disposed on the underside thereof in such a manner as to be connected to the driving shaft; a screen drum mounted at the inside of the juice squeezing drum and having a screen structure as the outer peripheral wall thereof; a rotating brush disposed between the juice squeezing drum and the screen drum in such a manner as to rotate and brush the inner peripheral surface of the juice squeezing drum and the outer peripheral surface of the screen drum and having a brush ring gear mounted on the underside periphery thereof in such a manner as to be connected to the engagement gear; and brush rotating means disposed on the underside of the juice squeezing drum to transmit the driving force of the driving shaft of the body of the juicer to the engagement gear to rotate the rotating brush.

According to the present invention, desirably, the brush rotating means is formed of a gear module connecting the driving shaft and the engagement gear.

According to the present invention, desirably, the brush rotating means includes: a first shaft gear interposed between the driving shaft and the power connector of the juice squeezing screw in such a manner as to rotate unitarily with the juice squeezing screw and having a first gear formed on the outer peripheral surface thereof; and a second shaft gear coupled to the center shaft of the engagement gear on the top end periphery thereof and having a second gear formed on the outer peripheral surface of the lower portion thereof in such a manner as to be connected to the first gear.

According to the present invention, desirably, the brush rotating means further includes a gear interposed between the first gear of the first shaft gear and the second gear of the second shaft gear.

According to the present invention, desirably, the juice squeezing module further includes a brush rotating means cover coupled to the underside of the juice squeezing drum to cover and support the lower portion of the brush rotating means.

To accomplish the above object, according to a second aspect of the present invention, there is provided a juice squeezing module for a juicer adapted to be mounted on a body of the juicer with a driving shaft protruding downward therefrom to perform a juice squeezing operation, the juice squeezing module including: a juice squeezing drum mounted on the body of the juicer in such a manner as to be open on the top surface thereof and having a juice discharging hole and a remnant discharging hole formed on the lower end periphery thereof and an engagement gear disposed on the edge of the periphery of the bottom surface thereof; a cap adapted to cover the top surface of the juice squeezing drum and having an injection hole formed on the top side thereof and a driving shaft through hole formed at the center thereof, through which the top end periphery of the driving shaft is rotatably passed; a juice squeezing screw rotatably mounted at the inside of the juice squeezing drum and having screw spiral lines formed on the outer peripheral surface thereof and a power connector disposed on the top thereof in such a manner as to be connected to the driving shaft; a screen drum mounted at the inside of the juice squeezing drum and having a screen structure as the outer peripheral wall thereof; a rotating brush disposed between the juice squeezing drum and the screen drum in such a manner as to rotate and brush the inner peripheral surface of the juice squeezing drum and the outer peripheral surface of the screen drum and having a brush ring gear mounted on the underside periphery thereof in such a manner as to be connected to the engagement gear; and brush rotating means disposed on the underside of the juice squeezing drum to transmit the rotary driving force of the juice squeezing drum to the engagement gear to rotate the rotating brush.

According to the present invention, desirably, the brush rotating means is formed of a gear module connecting the juice squeezing screw and the engagement gear.

According to the present invention, desirably, the brush rotating means includes: a first shaft gear coupled to the lower end periphery of the shaft of the juice squeezing screw in such a manner as to be rotated unitarily with the juice squeezing screw and having a first gear formed on the outer peripheral surface thereof; and a second shaft gear coupled to the center shaft of the engagement gear on the top end periphery thereof and having a second gear formed on the outer peripheral surface of the lower portion thereof in such a manner as to be connected to the first gear.

According to the present invention, desirably, the brush rotating means further includes a gear interposed between the first gear of the first shaft gear and the second gear of the second shaft gear.

According to the present invention, desirably, the juice squeezing module further includes a brush rotating means cover coupled to the underside of the juice squeezing drum to cover and support the lower portion of the brush rotating means.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Hereinafter, an explanation on a juice squeezing module for a juicer according to the present invention will be in detail given with reference to the attached drawing.

Further, the terms as will be discussed later are defined in accordance with the functions of the present invention, but may be varied under the intention or regulation of a user or operator. Therefore, they should be defined on the basis of the whole scope of the present invention. Therefore, they should be defined on the basis of the whole scope of the present invention. While the present invention will be described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments. It is to be appreciated that those skilled in the art can change or modify the embodiments without departing from the scope and spirit of the present invention.

As shown inFIGS. 3 and 4, a juice squeezing module for a juicer according to a first embodiment of the present invention is mounted on a body3of the lower powered type juicer having a driving shaft5aand serves to perform a juice squeezing operation.

In this case, the body3of the juicer serves to generate a rotary driving force of a juice squeezing screw30and has a general driving motor5mounted at the inside thereof and a juice squeezing drum seating portion7formed on the upper side thereof to detachably mount a juice squeezing drum10thereon. The driving motor5has the driving shaft5aprotruding upward therefrom to transmit the driving force generated therefrom to the juice squeezing screw30.

The driving motor5is a part for providing the driving force by which the juice squeezing screw30rotates at a low speed and has the driving shaft5aprotruding upward therefrom. The driving motor5can be freely selected in accordance with the shapes or use purposes of the juicer.

The juice squeezing drum seating portion7serves to supportedly mount the juice squeezing drum10on the body3of the juicer and is formed on the upper side of the body3to a shape corresponding to the underside of the juice squeezing drum10. The juice squeezing drum seating part7stably supports the juice squeezing drum10in the state of being spaced apart from the ground by a given distance.

As shown inFIGS. 3 to 5, the juice squeezing module for the juicer according to the first embodiment of the present invention, which is mounted on the body3of the juicer as mentioned above, includes the juice squeezing drum10, a cap20, the juice squeezing screw30, a screen drum40, a rotating brush50, and brush rotating means60.

The juice squeezing drum10serves to accommodate the juice squeezing screw30, the screen drum40and the rotating brush50thereinto and is open on the top surface thereof and mounted on the juice squeezing drum seating portion7of the body3of the juicer.

The juice squeezing drum10has a juice discharging hole11and a remnant discharging hole13(SeeFIG. 5) formed spaced apart from each other on the lower end periphery thereof, and according to the present invention, the juice discharging hole11and the remnant discharging hole13have a shape of a pipe having an open front surface, through which juice or remnants can be easily discharged.

The juice squeezing drum10has an engagement gear15disposed on the bottom surface at the inside thereof, and the engagement gear15receives the rotary driving force of the driving shaft5athrough the brush rotating means60to rotate the rotating brush50.

The engagement gear15is disposed on the edge of the periphery of the bottom surface of the juice squeezing drum10, not on the area of the bottom surface thereof wherein the juice squeezing screw30is mounted, so that the engagement gear15is brought into contact with the outer or inner periphery of a brush ring gear55of the rotating brush50. Such formation of the engagement gear15improves the space utilization and the freedom of design for the bottom surface of the juice squeezing drum10, especially, for the bottom surface of the juice squeezing drum10located under the juice squeezing screw30, thus making the lower portion of the juice squeezing drum10freely designed with no restriction.

The cap20is detachably coupled to the top surface of the juice squeezing drum10and has an underside shape corresponding to the top surface of the juice squeezing drum10so as to cover the open top surface of the juice squeezing drum10. The cap20is open on the underside thereof and has an injection hole21protruding upward from one side of the top surface thereof in such a manner as to be connected to the open underside surface thereof and open on the top surface thereof so as to allow extraction materials to be injected thereinto. Further, the cap20has a shaft coupling hole23formed at the center of the underside thereof, into which the top end periphery of the shaft of the juice squeezing screw30is rotatably inserted.

The juice squeezing screw30is rotatably mounted at the inside of the juice squeezing drum10and serves to rotate in the screen drum40to compress, squeeze or grind the injected materials between the juice squeezing screw30and the screen drum40, thus producing the juice from the extraction materials. The juice squeezing screw30has a plurality of screw spiral lines31formed on the outer peripheral surface thereof so as to squeeze the injected extraction materials through the contact with the inner peripheral surface of the screen drum40and to compressedly move the squeezed materials toward the lower end side of the screen drum40and a power connector33disposed on the underside thereof so as to receive the driving force generated from the body3of the juicer.

The power connector33is disposed on the underside of the juice squeezing drum30to transmit the driving force generated from the driving motor5to the juice squeezing screw30. The power connector33is desirably formed to a shape of a polygonal groove into which the top end periphery of a first shaft gear61of the brush rotating means60as will be discussed later is inserted. According to another embodiment of the present invention, as shown inFIGS. 6 and 7, a power connector33″ is formed to a shape of a polygonal groove into which the driving shaft5aof the body3is inserted after passed through a first shaft gear61″ of the brush rotating means60. However, only if the power connector33transmits the driving force generated from the driving motor5to the juice squeezing screw30, it does not matter in shape.

Referring again toFIGS. 3 to 5, the screen drum40is mounted at the inside of the juice squeezing drum10and has a screen structure41as the outer peripheral wall thereof to allow the juice extracted through the compression and squeezing or grinding between the juice squeezing screw30and the screen drum40from the extraction materials injected into the juice squeezing drum20through the injection hole21, as the juice squeezing screw30rotates, to be discharged to the outside thereof. Further, the screen drum40is open on the top and underside thereof in such a manner as to become reduced in diameter as it goes toward the lower portion thereof.

The juice extracted through the cooperative operation between the juice squeezing screw30and the screen drum40through the rotation of the juice squeezing screw30is discharged through the screen structure41of the screen drum40, and the remnants of the extraction materials after the squeezing are discharged through the lower portion of the screen drum40to the remnant discharging hole13.

The rotating brush50is disposed between the juice squeezing drum10and the screen drum40and serves to rotate between the juice squeezing drum10and the screen drum40, while continuously brushing the inner peripheral surface of the juice squeezing drum10and the outer peripheral surface of the screen drum40.

The rotating brush50includes first brush members51disposed radially on the outer peripheral surface thereof to continuously brush the inner peripheral surface of the juice squeezing drum10and second brush members53disposed radially on the inner peripheral surface thereof to continuously brush the outer peripheral surface of the screen drum40. The first and second brush members51and53are desirably made of a soft silicone material not harmful to the human body so as to softly brush the inner peripheral surface of the juice squeezing drum10and the outer peripheral surface of the screen drum40.

The rotating brush50further has the brush ring gear55mounted on the underside periphery thereof, and the brush ring gear55is connected externally or internally to the engagement gear15to allow the rotating brush50to rotate according to the rotation of the engagement gear15.

The brush rotating means60is disposed on the underside of the juice squeezing drum10and serves to transmit the driving force of the driving shaft5aof the body3of the juicer to rotate the juice squeezing screw30and the rotating brush50.

As shown inFIGS. 3 to 5, the brush rotating means60is desirably formed of a gear module connecting the driving shaft5aof the body3of the juicer and the engagement gear15of the juice squeezing drum10, but may be replaced with various means connecting the driving shaft5aof the body3of the juicer and the engagement gear15of the juice squeezing drum10.

If the brush rotating means60is formed of the gear module connecting the driving shaft5aof the body3of the juicer and the engagement gear15of the juice squeezing drum10, the brush rotating means60includes the first shaft gear61interposed between the driving shaft5aof the body3and the power connector33of the juice squeezing screw30in such a manner as to rotate unitarily with the juice squeezing screw30and having a first gear61aformed on the outer peripheral surface thereof and a second shaft gear63coupled to the center shaft of the engagement gear15on the top end periphery thereof and having a second gear63aformed on the outer peripheral surface of the lower portion thereof in such a manner as to be connected to the first gear61a. Otherwise, as shown inFIGS. 6 and 7, brush rotating means60″ includes a first shaft gear61″ engaged with the outer peripheral surface of a power connector33″ of the juice squeezing screw30in such a manner as to rotate unitarily with the juice squeezing screw30and having the first gear61aformed on the outer peripheral surface thereof and a second shaft gear63″ coupled to the center shaft of an engagement gear15″ and having the second gear63aformed on the outer peripheral surface thereof in such a manner as to be connected to the first gear61a. Accordingly, the structure of the brush rotating means may be freely varied.

Referring again toFIGS. 3 to 5, desirably, the brush rotating means60further includes a gear65interposed between the first gear61aof the first shaft gear61and the second gear63aof the second shaft gear63.

Further, a brush rotating means cover70is coupled to the underside of the juice squeezing drum10on which the brush rotating means60is disposed. The brush rotating means cover70serves to support and cover the lower portion of the brush rotating means60and has a shape of a casing open on the top end thereof in such a manner as to be sealedly coupled to the underside of the juice squeezing drum10by means of a packing and fastening members (not shown). According to the second embodiment of the present invention, as shown inFIGS. 6 and 7, a brush rotating means cover70″ has a ring projection70a″ inserted into a ring groove61b″ formed on the underside of the first gear61aso as to support the first shaft gear61″, thus supporting the brush rotating means60″ thereagainst.

Hereinafter, an operational relation wherein the rotating brush50is driven by the brush rotating means60in the juice squeezing module for the juicer according to the first embodiment of the present invention will be described with reference toFIG. 5.

In the state wherein the brush rotating means60having the first shaft gear61, the second shaft gear63and the gear65is interposed between the driving shaft5aof the body3of the juicer and the engagement gear15of the juice squeezing drum10, as shown inFIG. 5, if the driving shaft5aof the body3of the juicer rotates in a clockwise direction, the first shaft gear61having the first gear61arotates in the clockwise direction, together with the driving shaft5a.

Accordingly, the gear65interposed between the first gear61aand the second gear63arotates in a counterclockwise direction to rotate the second shaft gear63having the second gear63ain the clockwise direction.

Accordingly, the engagement gear15fixedly coupled to the top end periphery of the second shaft gear63rotates in the clockwise direction, and finally, the rotating brush50rotates in the counterclockwise direction by means of the brush ring gear55engaged externally with the engagement gear15. That is, the rotating brush50rotates in the opposite direction to the rotating direction of the juice squeezing screw30through the driving shaft5aof the body3of the juicer. Even if not shown, it is obvious that if the driving shaft5aof the body3of the juicer rotates in the counterclockwise direction, the rotating brush50rotates in the opposite direction to the rotating direction of the juice squeezing screw30through the driving shaft5aof the body3of the juicer.

In case of the juice squeezing module for the juicer according to the first embodiment of the present invention, the engagement gear15for the engagement rotation with the rotating brush50is disposed on the edge of the periphery of the bottom surface of the juice squeezing drum10, not on the area of the bottom surface thereof wherein the juice squeezing screw30is mounted, and at the same time, the brush rotating means60, which transmits the driving force of the driving shaft5aof the body3to the engagement gear15to engagedly rotate the rotating brush50, is disposed on the underside of the juice squeezing drum10, so that the introduction of remnants into the juice can be prevented and the freedom of design for the bottom surface of the juice squeezing drum10can be improved, thus making the lower portion of the juice squeezing drum10freely designed and allowing the remnants to be gently and uniformly discharged to achieve effective juice squeezing operation.

As shown inFIG. 8, a juice squeezing module for a juicer according to a third embodiment of the present invention is mounted on a body3′ of the upper powered type juicer having a driving shaft5a′ protruding downward therefrom and serves to perform a juice squeezing operation.

In this case, the body3′ of the juicer has a general driving motor5′ mounted at the inside thereof to generate a rotary driving force of a juice squeezing screw30′ therefrom, and the driving shaft5a′ is spaced apart from the shaft protruding upward from the driving motor5′ in such a manner as to be connected to the driving motor5′ by means of a connection module5b′ disposed between the shaft of the driving motor5′ and the driving shaft5a′.

The lower end periphery of the driving shaft5a′ protrudes downward from the body3′ in such a manner as to be passed through a cap20′ and coupled to the top end periphery of a juice squeezing screw30′, and further, the body3′ has a juice squeezing drum seating portion7′ formed thereon to detachably mount a juice squeezing drum10′ thereon.

The driving motor5′ is a part for providing the driving force by which the juice squeezing screw30′ rotates at a low speed and is connected to the driving shaft5a′ protruding downward by means of the connection module5b′. The driving motor5′ can be freely selected in accordance with the shapes or use purposes of the juicer.

The juice squeezing drum seating portion7′ serves to supportedly mount the juice squeezing drum10′ on the body3′ of the juicer and is formed on the upper side of the body3′ to a shape corresponding to the underside of the juice squeezing drum10′. Only if the juice squeezing drum seating part7′ stably supports the juice squeezing drum10′ in the state of being spaced apart from the ground by a given distance, it does not matter in shape.

The juice squeezing module for the juicer according to the third embodiment of the present invention, which is mounted on the body3′ of the juicer as mentioned above, includes the juice squeezing drum10′, the cap20′, the juice squeezing screw30′, a screen drum40′, a rotating brush50′, and brush rotating means60′.

The juice squeezing drum10′ serves to accommodate the juice squeezing screw30′, the screen drum40′ and the rotating brush50′ thereinto and is open on the top surface thereof and mounted on the juice squeezing drum seating portion7′ of the body3′ of the juicer.

The juice squeezing drum10′ has a juice discharging hole11′ and a remnant discharging hole (which is not shown) formed spaced apart from each other on the lower end periphery thereof, and according to the present invention, the juice discharging hole11′ and the remnant discharging hole have a shape of a protruding pipe having an open front surface, through which juice or remnants can be easily discharged.

The juice squeezing drum10′ has an engagement gear15′ disposed on the bottom surface at the inside thereof, and the engagement gear15′ receives the rotary driving force of the driving shaft5a′ from the brush rotating means60′ and the juice squeezing screw30′ to rotate the rotating brush50′.

The engagement gear15′ is disposed on the edge of the periphery of the bottom surface of the juice squeezing drum10′, not on the area of the bottom surface thereof wherein the juice squeezing screw30′ is mounted, so that the engagement gear15′ is brought into contact with the outer or inner periphery of a brush ring gear55′ of the rotating brush50′. Such formation of the engagement gear15′ improves the space utilization and the freedom of design for the bottom surface of the juice squeezing drum10′, especially, for the bottom surface of the juice squeezing drum10′ located under the juice squeezing screw30′, thus making the lower portion of the juice squeezing drum10′ freely designed with no restriction.

The cap20′ is detachably coupled to the top surface of the juice squeezing drum10′ and has an underside shape corresponding to the top surface of the juice squeezing drum10′ so as to cover the open top surface of the juice squeezing drum10′. The cap20′ is open on the underside thereof and has an injection hole21′ protruding upward from one side of the top surface thereof in such a manner as to be connected to the open underside surface thereof and open on the top surface thereof so as to allow extraction materials to be injected thereinto.

Further, the cap20′ has a driving shaft through hole23′ formed at the center thereof, into which the top end periphery of the driving shaft5a′ is rotatably passed and coupled to the juice squeezing screw30′ in the juice squeezing drum10′.

The juice squeezing screw30′ is rotatably mounted at the inside of the juice squeezing drum10′ and serves to rotate in the screen drum40′ to compress, squeeze or grind the injected extraction materials between the juice squeezing screw30′ and the screen drum40′, thus producing the juice from the extraction materials. The juice squeezing screw30′ has a plurality of screw spiral lines31′ formed on the outer peripheral surface thereof so as to squeeze the injected extraction materials through the contact with the inner peripheral surface of the screen drum40′ and to compressedly move the squeezing materials toward the lower end side of the screen drum40′, and has a power connector33′ disposed on the top thereof in such a manner as to be connected to the driving shaft5a′ of the body3′ of the juicer.

The power connector33′ is disposed on the top of the juice squeezing drum30′ to transmit the driving force generated from the driving motor5′ to the juice squeezing screw30′. The power connector33′ is desirably formed to a shape of a polygonal groove into which the driving shaft5ais inserted, but only if the power connector33′ transmits the driving force generated from the driving motor5′ to the juice squeezing screw30′, it does not matter in shape.

The screen drum40′ is mounted at the inside of the juice squeezing drum10′ and has a screen structure (not shown) as the outer peripheral wall thereof to allow the juice extracted through the compression and squeezing or grinding between the juice squeezing screw30′ and the screen drum40′ from the extraction materials injected into the juice squeezing drum20′ through the injection hole21′, as the juice squeezing screw30′ rotates, to be discharged to the outside thereof. Further, the screen drum40is open on the top and underside thereof in such a manner as to become reduced in diameter as it goes toward the lower portion thereof.

The juice extracted through the cooperative operation between the juice squeezing screw30′ and the screen drum40′ through the rotation of the juice squeezing screw30′ is discharged through the screen structure of the screen drum40′, and the remnants of the extraction materials after the squeezing are discharged through the lower portion of the screen drum40′ to the remnant discharging hole.

The rotating brush50′ is disposed between the juice squeezing drum10′ and the screen drum40′ and serves to rotate between the juice squeezing drum10′ and the screen drum40′, while continuously brushing the inner peripheral surface of the juice squeezing drum10′ and the outer peripheral surface of the screen drum40′.

The rotating brush50′ includes first brush members51′ disposed radially on the outer peripheral surface thereof to continuously brush the inner peripheral surface of the juice squeezing drum10′ and second brush members53′ disposed radially on the inner peripheral surface thereof to continuously brush the outer peripheral surface of the screen drum40′. The first and second brush members51′ and53′ are desirably made of a soft silicone material not harmful to the human body so as to softly brush the inner peripheral surface of the juice squeezing drum10′ and the outer peripheral surface of the screen drum40′.

The rotating brush50′ further has the brush ring gear55′ mounted on the underside periphery thereof, and the brush ring gear55′ is brought into contact with the engagement gear15′ to allow the rotating brush50′ to rotate according to the rotation of the engagement gear15′.

The brush rotating means60′ is disposed on the underside of the juice squeezing drum10′ and serves to transmit the driving force of the driving shaft5a′ of the body3′ of the juicer to the engagement gear15′, thus finally rotating the rotating brush50′.

The brush rotating means60′ is desirably formed of a gear module connecting the juice squeezing screw30′ and the engagement gear15′ of the juice squeezing drum10′, but may be replaced with various means connecting the lower end periphery of the shaft of the juice squeezing screw30′ and the engagement gear15′ of the juice squeezing drum10′.

If the brush rotating means60′ is formed of the gear module connecting the lower end periphery of the shaft of the juice squeezing screw30′ and the engagement gear15′ of the juice squeezing drum10′, the brush rotating means60′ includes a first shaft gear61′ coupled to the lower end periphery of the shaft of the juice squeezing screw30′ in such a manner as to rotate unitarily with the juice squeezing screw30′ and having a first gear61a′ formed on the outer peripheral surface thereof and a second shaft gear63′ coupled to the center shaft of the engagement gear15′ on the top end periphery thereof and having a second gear63a′ formed on the outer peripheral surface of the lower portion thereof in such a manner as to be connected to the first gear61a′.

In this case, desirably, the brush rotating means60′ further includes a gear65′ interposed between the first gear61a′ of the first shaft gear61′ and the second gear63a′ of the second shaft gear63′.

Further, a brush rotating means cover70′ is coupled to the underside of the juice squeezing drum10′ on which the brush rotating means60′ is disposed. The brush rotating means cover70′ serves to support and cover the lower portion of the brush rotating means60′ and has a shape of a casing open on the top end thereof in such a manner as to be sealedly coupled to the underside of the juice squeezing drum10′ by means of fastening members (not shown). However, only if the brush rotating means cover supports the brush rotating means disposed on the underside of the juice squeezing drum10′, it does not matter in shape.

In case of the juice squeezing module for the juicer according to the third embodiment of the present invention, the engagement gear15′ for the engagement rotation with the rotating brush50′ is disposed on the edge of the periphery of the bottom surface of the juice squeezing drum10′, not on the area of the bottom surface thereof wherein the juice squeezing screw30′ is mounted, and at the same time, the brush rotating means60′, which transmits the rotary driving force of the juice squeezing screw30′ according to the driving shaft5a′ of the body3′ to the engagement gear15′ to engagedly rotate the rotating brush50′, is disposed on the underside of the juice squeezing drum10′, so that the introduction of remnants into the juice can be prevented and the freedom of design for the bottom surface of the juice squeezing drum10′ can be improved, thus making the lower portion of the juice squeezing drum10′ designed freely and allowing the remnants to be gently and uniformly discharged to achieve effective juice squeezing operation.

As described above, the juice squeezing module for the juicer according to the present invention is configured wherein the engagement gear for the engagement rotation with the rotating brush is disposed on the edge of the periphery of the bottom surface of the juice squeezing drum, not on the area of the bottom surface thereof wherein the juice squeezing screw is mounted. Further, the brush rotating means, which transmits the driving force of the driving shaft of the body to the engagement gear to engagedly rotate the rotating brush, is disposed on the underside of the juice squeezing drum, so that the introduction of remnants into the juice can be prevented. Furthermore, the freedom of design for the bottom surface of the juice squeezing drum can be improved, thus making the lower portion of the juice squeezing drum designed freely and allowing the juice squeezing drum to be easily coupled to the body, without having any complication on the upper structure of the body. Additionally, the remnants can be gently and uniformly discharged to achieve effective juice squeezing operation.

The juice squeezing module for the juicer according to the present invention can be applied to the typical lower powered and upper powered type juicers, so that it can be applied to all kinds of juicers having the rotating brush, irrespective of its driven type.