Kitchen Appliance for Processing Foodstuff and Method of Operating Same
A kitchen appliance for processing foodstuff includes a housing enclosing a motor. A bowl is removably mountable to the housing. The bowl includes a mouth for receiving a rotatable tool within the bowl. A bowl lid is removably mountable on to the mouth of the bowl. A clamping mechanism is movably attached to the bowl lid and removably engagable with at least a portion of the bowl. The clamping mechanism is movable between a first position for engaging at least a portion of the bowl to retain the bowl lid on the mouth of the bowl and a second position spaced-apart from the bowl for allowing the bowl lid to be removed from the bowl. The kitchen appliance being assembled without rotating the bowl relative to the housing or the lid relative to the bowl.
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The present disclosure relates generally to a kitchen appliance for processing foodstuff and, more particularly, to a food processor that is relatively simple and easy to assemble and operate.
Motorized kitchen appliances for the preparation of foodstuffs typically include two or more components that are selectively attachable. For example, conventional food processors include a bowl removably attachable to a housing and a bowl lid removable attachable to a bowl. The structure or features that allow such components to be attached and/or function as a single unit can be difficult and/or awkward to utilize.
The device of the present disclosure is easy to assemble and operate, and it overcomes the disadvantages found in conventional kitchen appliances.
BRIEF SUMMARY OF THE DISCLOSUREBriefly stated, one aspect of the present disclosure is directed to a kitchen appliance for processing foodstuff including a housing enclosing a motor. A bowl is removably mountable to the housing without twisting or rotating the bowl relative to the housing. The bowl includes a mouth for receiving a rotatable tool within the bowl. A bowl lid is removably mountable to the mouth of the bowl without twisting or rotating the bowl lid relative to the bowl or housing. At least one clamping mechanism is movably attached to the bowl lid and removably engagable with at least a portion of the bowl. The clamping mechanism is movable between a first position for engaging at least a portion of the bowl to retain the bowl lid on the mouth of the bowl and a second position spaced-apart from the bowl for allowing the bowl lid to be removed from the bowl. In one embodiment, the bowl lid comprises two clamping mechanisms. It is also envisioned that the clamping mechanisms may be located on the bowl and selectively engage the lid.
Another aspect of the present disclosure is directed to a kitchen appliance for processing foodstuff including a housing enclosing a motor. The housing has a reduced diameter portion proximate a first upper end thereof. A bowl is removably mountable to the housing. The bowl includes a base wall and a side wall extending upwardly therefrom. The side wall defines a mouth of the bowl opposite the base wall. A skirt extends downwardly from the base wall opposite the mouth. A drive shaft extends into a cavity of the bowl and is selectively connected to a motor located in the housing. A bowl lid is removably mountable on to the mouth of the bowl. A first rotatable tool is removably mountable to at least a portion of the drive shaft. A second rotatable tool is removably mountable to at least a portion of the drive shaft. The bowl is removably mountable to the housing by positioning at least a portion of the skirt of the bowl to surround at least a portion of the reduced diameter portion of the housing.
In yet another aspect, the present disclosure is directed to a kitchen appliance for processing foodstuff including a housing enclosing a motor. A bowl is removably mountable to the housing. The bowl includes a base wall and a side wall extending upwardly therefrom. The side wall defines the mouth of the bowl opposite the base wall. The drive shaft extends into a cavity of the bowl. The drive shaft is rotatable with respect to the bowl and is separable from the housing. A clutch mechanism is positioned on/within the bowl. The clutch mechanism operatively connects the motor of the housing to the drive shaft of the bowl when the bowl is properly positioned on the housing. A bowl lid is removably mountable on to the mouth of the bowl. A first rotatable tool is removably mountable to at least a portion of the drive shaft. A second rotatable tool is removably mountable to at least a portion of the drive shaft. When the bowl is properly positioned on the housing and upon actuation of the motor, the clutch mechanism effects rotation of the drive shaft with respect to the bowl to process foodstuff thereon.
In yet a further aspect, the present disclosure is directed to a kitchen appliance for processing foodstuff including a housing enclosing a motor, a switch mechanism to prevent actuation of the motor, and an actuation member pivotable between a first position and a second position. In the first position, the actuation member is spaced-apart from the switch mechanism to maintain the switch mechanism in an open position and prevent actuation of the motor. In the second position, the actuation member engages the switch mechanism to close the switch mechanism to actuate the motor. A bowl is removably mountable to the housing. The bowl includes a mouth for receiving a rotatable tool within the bowl. The bowl also includes a first member for selectively engaging the actuation member for actuating the switch mechanism. A bowl lid is removably mountable on to the mouth of the bowl. When either the bowl lid is removed from the mouth of the bowl or the bowl is removed from the housing, the actuation member is in the first position. When the bowl lid is properly positioned on the mouth of the bowl and the bowl is properly positioned on the housing, the actuation member is in the second position.
The foregoing summary, as well as the following detailed description of the disclosure, will be better understood when read in conjunction with the appended drawings. For the purpose of illustrating the disclosure, there is shown in the drawings an embodiment or embodiments, which is/are presently, preferred. It should be understood, however, that the disclosure is not limited to the precise arrangements and instrumentalities shown.
In the drawings:
Certain terminology is used in the following description for convenience only and is not limiting. The words “lower,” “bottom,” “upper” and “top” designate directions in the drawings to which reference is made. The words “inwardly,” “outwardly,” “upwardly” and “downwardly” refer to directions toward and away from, respectively, the geometric center of the device, and designated parts thereof, in accordance with the present disclosure. Unless specifically set forth herein, the terms “a,” “an” and “the” are not limited to one element, but instead should be read as meaning “at least one.” The terminology includes the words noted above, derivatives thereof and words of similar import.
The present disclosure is directed to a motorized kitchen appliance for processing foodstuffs. The subject appliance is described and illustrated in terms of various embodiments but is not limited thereto. In general, the present appliance comprises a novel construction in that it, among other components or features, employs a drive shaft fixed to a bowl assembly instead of fixed to a motor housing, includes a coupling mechanism between the housing assembly and bowl assembly to create a selective engagement between a motor in the housing and the drive shaft in the bowl, provides various components that are assembled together without twisting or rotating the components, and ensures that the coupling components between the motor and drive shaft transmit torque only. The appliance comprises a housing, bowl and lid that all fit in a single orientation and are joined together along a vertical axis without rotating the housing, bowl or lid relative to each other. The present disclosure is not limited to these specific embodiments but also includes variations and equivalent structures that would be apparent to one of skill in the art upon review of the present disclosure.
Referring to the drawings in detail, wherein like numerals indicate like elements throughout,
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The housing 12 may be constructed of an injection molded acrylonitrile butadiene styrene (ABS) material. The ABS material may be desirable due to its relatively smooth surface finish, its ability to readily take on various colors, its high impact and crack resistance, and its ability to be plated with a metallic finish. However, the housing 12 is not limited to injected molded ABS materials and may be constructed of nearly any generally rigid material that is able to take on the general shape of the housing 12 and perform the functionality of the housing 12 described herein. For example, the housing 12, and any other components of the kitchen appliance, may be constructed of a polymeric, metallic or like material or combination thereof. The housing 12 may be opaque, fully transparent, or some amount of transparency therebetween.
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To permit such functionality, the bowl lid 68 includes at least one and preferably two spaced-apart extensions 72 (see
The bowl lid 68, as well as the bowl 40 and any complementary components thereof, may be constructed of a molded, transparent styrene acrylonitrile (SAN) material. However, the bowl 40 and the bowl lid 68 are not limited to constructions using molded SAN material and may be constructed of nearly any polymeric, metallic, glass or like material that is able to form the desired shape(s) and withstand the normal operating conditions described herein. The bowl 40, the bowl lid 68 and any other features or complementary components may be opaque or partially opaque if desired.
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An outer periphery of the side wall 86 of the food pusher 82 is preferably at least slightly smaller than an inner periphery of the feed cavity 78, such that the food pusher 82 is slidable into and out of the feed cavity 78. However, the upper pusher lip 84 of the food pusher 82 preferably has an outer periphery that it is at least slightly larger than the feed cavity 78, such that the food pusher 82 is able to move within the feed cavity 78 only to a point where the upper pusher lip 84 engages a top surface of the feed tube 76. The food pusher 82 is preferably slidable in the feed cavity 78 to urge foodstuff toward the bowl 40 when the bowl lid 68 is mounted to the bowl 40. A height of the food pusher 82 is preferably at least slightly less than a height of the feed tube 76, such that the food pusher 82 does not and cannot extend into the cavity of the bowl 40 when the bowl lid 68 is properly mounted to the bowl 40 and the food pusher 82 is positioned within the feed cavity 78 of the feed tube 76. As shown in
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In further detail, the actuation member 37 is pivotable between a first position (see
A biasing member 65 preferably surrounds at least a portion of the actuation member 37 and biases the actuation member 37 in the first position. The biasing member 65 may be a leaf spring or any other mechanism that is capable of urging and/or rotating the actuation member 37 into or toward a desired position. One end of the biasing member 65 may be wrapped around or otherwise secured to a pivot point of the actuation member 37, and another end of the biasing member 65 may contact a portion of the interior of the housing 12, which would provide leverage for the biasing member 65.
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Preferably, the actuation member 37, the first member 66, the second member 104 and/or the third member 108 combine to form a safety interlock feature of the kitchen application 10, such that the motor 14 cannot be actuated unless the interlock components are properly assembled and/or configured. For example, it is preferred that if the bowl 40 is not properly attached to the housing 12, and the bowl lid 68 is not properly attached to the bowl 40, the motor 14 cannot be operated through the control panel 100. When the bowl lid 68 is properly mounted to the bowl 40, the second member 104 may be moved downwardly to engage the first member 66 by pushing the food pusher 82 into the feed cavity 78 of the feed tub 76. The downward movement of the food pusher 82 may engage at least a portion of the second member 104 and overcome the upwardly force of the biasing member 106, which in turn pushes the first member 66 downwardly. When the bowl 40 is properly mounted to the housing 12, the downward movement of the first member 66 engages at least a portion of the actuation member 37, which causes the actuation member 37 to rotate and activate the switch mechanism 36 and the motor 14. In such a configuration, a user can control or otherwise operate the motor 14 through the control panel 100. In addition, such a configuration is advantageous because there is little or no horizontally-extending force (e.g., parallel to the longitudinal axis A) generated by the safety interlock feature that tends to separate the housing and bowl of conventional kitchen appliances. Without a twist lock engagement between the bowl and housing, there is no mechanical stop to keep the bowl 40 from being displaced vertically, which could disengage the drive mechanism from the drive shaft. Upward biasing forces on bowl 40 are preferably minimized.
The safety interlock feature may be comprised of less than all of the above-identified components. In other words, the kitchen appliance 10 is not limited to inclusion of the second member 104 and the third member 108. For example, in a preferred embodiment wherein the kitchen appliance 10 does not include the feed tube 76, the second and third members 104 and 108 may not be necessary or desirable. In such an embodiment, the safety interlock feature may only include the actuation member 37 and the first member 66, such that placing the bowl lid 60 properly onto the mouth 46 of the bowl 40 preferably moves the first member 66 downwardly to contact or otherwise engage the actuation member 37.
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More specifically, a first rotatable tool 96 may be directly connected to and rotatable by at least a first portion of the drive shaft 54, such as the upper end thereof, in a first operating configuration. A separate rotatable tool 98 is preferably directly connected to and rotatable by at least a second portion of the drive shaft 54 in a second operating configuration when the first tool 96 is not positioned within the bowl 40. Each rotatable tool 96, 98 snap or friction fits onto the drive shaft 54. In a preferred embodiment, the first rotatable tool 96 is a generally flat or planar shredding blade, and the second rotatable tool 98 is a slicing or S-blade. However, each rotatable tool 96, 98 may have an alternative form or shape.
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Each clamping mechanism 90 is pivotable between a first position (see
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A preferred method of assembling the kitchen appliance 10 to process foodstuff therein includes placing the housing 12 on the support surface. The bowl 40 is preferably attached or mounted to the first upper end 18 of the housing 12 by moving the bowl 40 vertically downward from above (i.e., along the longitudinal axis A). The above-described movement of the bowl 40 with respect to the housing 12 allows each projection 52 of the bowl 40 to engage one of the grooves 28 of the housing 12 and allows the lug 62 to be placed within and engage the drive member 10 of the housing 12. Also, the lower end of the first member 66 extends into an opening 12a in the housing 12. The user does not need and, in fact, cannot twist bowl 40 on housing 12. Foodstuff to be processed, blended and/or mixed may be placed in the bowl 40 before or after the bowl 40 is mounted on to the housing 12. The bowl lid 68 is preferably attached to the mouth 46 of the bowl 40 by moving the bowl lid 68 vertically downward from above (i.e., along the longitudinal axis). The bowl lid 68 may be fixed to the bowl 40 by pivoting and/or engaging the clamping mechanism(s) 90 to one or both of the bowl lid 68 and the bowl 40. In an embodiment that includes the feed tube 76, the food pusher 82 is preferably inserted into the feed cavity 78. The above-described steps allow the safety interlock feature to be activated or engaged, thereby allowing a user to control operation of the motor 14 through the control panel 100. The above-described method of assembling and processing is not limited to the precise order of operations described, and one or more of the steps may occur before or after another.
It will be appreciated by those skilled in the art that changes could be made to the embodiments described above without departing from the broad inventive concept thereof. It is understood, therefore, that this disclosure is not limited to the particular embodiments disclosed, but it is intended to cover modifications within the spirit and scope of the present disclosure as defined by the appended claims.
Claims
1. A kitchen appliance for processing foodstuff comprising:
- a housing enclosing a motor;
- a bowl removably mountable to the housing, the bowl including a mouth for receiving a rotatable tool within the bowl;
- a bowl lid removably mountable on to the mouth of the bowl; and
- a first clamping mechanism and a second clamping mechanism movably attached to the bowl lid and removably engageable between the bowl lid and at least a portion of the bowl, the clamping mechanism being movable between a first position to retain the bowl lid on the mouth of the bowl and a second position for allowing the bowl lid to be removed from the bowl.
2. The kitchen appliance according to claim 1, wherein the first and second clamping mechanisms are pivotably attached to the bowl lid, the clamping mechanism being pivotable between the first position and the second position.
3. The kitchen appliance according to claim 2, wherein kitchen appliance defines a longitudinal axis, and the first and second clamping mechanisms are pivotable about an axis that extends generally perpendicularly to the longitudinal axis.
4. The kitchen appliance according to claim 1, wherein the first clamping mechanism is located on one side of the bowl lid and the second clamping mechanism is located on a diametrically opposed side of the bowl lid.
5. The kitchen appliance according to claim 1, further comprising:
- at least one extension extending radially outwardly from the bowl lid, the extension including a groove therein for receipt of at least a portion of the first clamping mechanism therein, wherein engagement of at least a portion of the first clamping mechanism and the groove permits rotational movement of the first clamping mechanism with respect to the bowl lid.
6. The kitchen appliance according to claim 1, further comprising:
- a projection extending radially outwardly from the bowl proximate the mouth thereof, the first clamping mechanism engaging at least a portion of the projection when the first clamping mechanism is in the first position.
7. The kitchen appliance according to claim 1, wherein the bowl lid is attached to the bowl without rotating the bowl lid relative to the bowl.
8. The kitchen appliance according to claim 1, further comprising:
- a clutch mechanism within the bowl;
- a lug extending downwardly from a bottom of the bowl, the lug being operatively engaged with the clutch mechanism; and
- the housing comprising a drive member, the drive member being operatively engaged with the lug when the bowl is properly positioned on the housing.
9. The kitchen appliance according to claim 1, further comprising:
- a feed tube extending from a top wall of the bowl lid, the feed tube defining a feed cavity and including a feed mouth;
- a switch mechanism at least partially surrounded by the housing, the switch mechanism being operatively connected to the motor; and
- an actuation member at least partially surrounded by the housing, the actuation member being pivotable between a first position when the bowl is separated from the housing and a second position when the bowl is properly position on the housing and the bowl lid is properly positioned on the bowl, in the first position the actuation member being spaced-apart from the switch mechanism to maintain the switch mechanism in an open position and prevent actuation of the motor, in the second position the actuation member engaging the switch mechanism to close the switch mechanism to actuate the motor.
10. A kitchen appliance for processing foodstuff comprising:
- a housing enclosing a motor, the housing having a reduced diameter portion proximate a first upper end thereof;
- a bowl removably mountable to the housing, the bowl including a base wall and a side wall extending upwardly therefrom, the side wall defining a mouth of the bowl opposite the base wall, a skirt extending downwardly from the base wall opposite the mouth, a drive shaft extending into a cavity of the bowl and being separable from the housing;
- a bowl lid removably mountable on to the mouth of the bowl;
- a first rotatable tool removably mountable to at least a portion of the drive shaft; and
- a second rotatable tool removably mountable to at least a portion of the drive shaft,
- wherein the bowl is removably mountable to the housing by positioning at least a portion of the skirt of the bowl to surround at least a portion of the reduced diameter portion of the housing.
11. The kitchen appliance according to claim 10, wherein the bowl is removably mountable to the housing by moving the bowl linearly downwardly onto the housing without rotating the bowl relative to the housing.
12. The kitchen appliance according to claim 10, further comprising:
- a clutch mechanism within the bowl;
- a lug extending downwardly from a bottom of the bowl, the lug being operatively engaged with the clutch mechanism; and
- a drive member on or within the housing, the drive member being operatively engaged with the lug when the bowl is properly positioned on the housing.
13. The kitchen appliance according to claim 10, further comprising:
- at least one groove extending at least partially inwardly into the reduced diameter portion of the housing, the groove extending at least generally parallel to the drive shaft of the bowl when the bowl is mounted to the housing; and
- a projection extending radially inwardly from an interior surface of the skirt,
- wherein at least a portion of the projection is positioned within at least a portion of the groove of the housing when the bowl is positioned on the housing.
14. The kitchen appliance according to claim 10, further comprising:
- a feed tube extending from a top wall of the bowl lid, the feed tube defining a feed cavity and including a feed mouth; and
- a clamping mechanism movably attached to the bowl lid and removably engageable with at least a portion of the bowl, the clamping mechanism being movable between a first position for engaging at least a portion of the bowl to retain the bowl lid on the mouth of the bowl and a second position spaced-apart from the bowl for allowing the bowl lid to be removed from the bowl.
15. A kitchen appliance for processing foodstuff comprising:
- a housing enclosing a motor;
- a bowl removably mountable to the housing, the bowl including a base wall and a side wall extending upwardly therefrom, the side wall defining a mouth of the bowl opposite the base wall, a drive shaft extending into a cavity of the bowl, the drive shaft being rotatable with respect to the bowl and being separable from the housing;
- a clutch mechanism within the bowl, the clutch mechanism operatively connecting the motor of the housing to the drive shaft of the bowl when the bowl is properly positioned on the housing;
- a bowl lid removably mountable on to the mouth of the bowl;
- a first rotatable tool removably mountable to at least a portion of the drive shaft; and
- a second rotatable tool removably mountable to at least a portion of the drive shaft,
- wherein, when the bowl is properly positioned on the housing and upon actuation of the motor, the clutch mechanism effects rotation of the drive shaft with respect to the bowl to process foodstuff therein.
16. The kitchen appliance according to claim 15, further comprising:
- a lug extending downwardly from the base wall of the bowl, the lug being operatively engaged with the clutch mechanism; and
- a drive member on or within the housing, the drive member being operatively engaged with the lug when the bowl is properly positioned on the housing, the motor is operatively connected to the drive member such that actuation of the motor rotates the drive member.
17. The kitchen appliance according to claim 16, further comprising:
- a skirt extending downwardly from the base wall opposite the mouth, the skirt extending around a periphery of the bowl.
18. The kitchen appliance according to claim 15, further comprising:
- a feed tube extending from a top wall of the bowl lid, the feed tube defining a feed cavity and including a feed mouth;
- a switch mechanism at least partially surrounded by the housing, the switch mechanism being operatively connected to the motor; and
- an actuation member at least partially surrounded by the housing, the actuation member being pivotable between a first position when the bowl is separated from the housing and a second position when the bowl is properly position on the housing, in the first position the actuation member being spaced-apart from the switch mechanism to maintain the switch mechanism in an open position and prevent actuation of the motor, in the second position the actuation member engaging the switch mechanism to close the switch mechanism to actuate the motor,
- wherein a biasing member biases the actuation member in the first position.
19. A kitchen appliance for processing foodstuff comprising:
- a housing enclosing a motor, a switch mechanism to permit actuation of the motor, and an actuation member pivotable between a first position and a second position, in the first position the actuation member being spaced-apart from the switch mechanism to maintain the switch mechanism in an open position and prevent actuation of the motor, in second position the actuation member engaging the switch mechanism to close the switch mechanism to actuate the motor;
- a bowl removably mountable to the housing, the bowl including a mouth for receiving a rotatable tool within the bowl, a first member for selectively engaging the actuation member for actuating the switch mechanism, and a drive shaft being separable from the housing; and
- a bowl lid removably mountable on to the mouth of the bowl;
- wherein, when either the bowl lid is removed from the mouth of the bowl or the bowl is removed from the housing, the actuation member is in the first position; and
- wherein, when the bowl lid is properly positioned on the mouth of the bowl and the bowl is properly positioned on the housing, the actuation member is in the second position.
20. The kitchen appliance according to claim 19, wherein the kitchen appliance defines a longitudinal axis, and wherein the actuation member is pivotable with respect to the housing about an axis that extends generally perpendicularly to the longitudinal axis of the kitchen appliance.
Type: Application
Filed: Dec 7, 2012
Publication Date: Sep 12, 2013
Applicant: HAMILTON BEACH BRANDS, INC. (Glen Allen, VA)
Inventors: Ernest B. Pryor, JR. (Maidens, VA), Michael G. Sandford (Mechanicsville, VA)
Application Number: 13/707,640
International Classification: A47J 43/07 (20060101); A47J 43/08 (20060101); A47J 43/046 (20060101);