Kitchen appliances

Abstract

To provide a device for peeling foodstuffs.SOLUTION: This device comprises a rotatable disc 110 having a first friction surface 112; and a second, preferably friction, surface 310, encircling the first friction surface.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to attachments for kitchen appliances, particularly handheld kitchen appliances such as hand blenders and immersion blenders. The present invention particularly relates to attachments for peeling garlic or similar foodstuffs, and to a method of removing the tool from the attachment. Summary of the Invention

[0002] According to a first aspect of the present invention, there is provided an apparatus for peeling food material, the apparatus having a rotatable disc with a first friction surface and a second surface surrounding the first friction surface, the second surface being preferably a friction surface.

[0003] As used herein, "surrounding" preferably means surrounding a periphery, without being limited to a circular configuration, and preferably means that the first friction surface and the second surface are non-parallel.

[0004] Preferably, at least a portion of the first friction surface and the second surface are at an angle between 45 and 135 degrees, more preferably between 60 and 120 degrees, more preferably between 75 and 105 degrees, more preferably between 80 and 100 degrees, and even more preferably between 85 and 95 degrees. It is desirable that at least a portion of the first friction surface and the second surface be vertical.

[0005] Preferably, the second surface is a wall surrounding the first friction surface, and more preferably, the second surface abuts the first friction surface.

[0006] In a preferred configuration, the first friction surface and the second surface define a chamber for containing food material, and both the first friction surface and the second surface face the chamber. Preferably, the chamber is not completely surrounded by the first friction surface and the second surface. More preferably, the chamber has an entrance opening, and the first friction surface faces the entrance opening.

[0007] The second surface may be provided on a cylinder within which the disc (including or forming the first friction surface) is disposed. The cylinder is preferably tapered.

[0008] One or both of the first friction surface and the second surface can preferably have an outer surface formed from a resilient material. For example, the outer surface can be formed from rubber, silicone, or a similar polymer. The first and second surfaces are preferably not abrasive or cutting surfaces containing rough or sharp particles, grains, or teeth that could scratch, cut, or penetrate the skin of a food item. Preferably, the surfaces grip, but do not scratch or penetrate, the skin of a food item, such as a garlic clove. Preferably, the friction surface has a smooth outermost surface.

[0009] Preferably, the coefficient of friction between the first friction surface and the food material to be peeled is higher than the coefficient of friction between the food material to be peeled and the remainder of the disc and / or the second surface.

[0010] The second surface may preferably include a structure that impedes movement of the food being peeled. The coefficient of friction between the second surface and the food may not be higher than that of a normal surface of the kitchen appliance, such as a bowl of the kitchen appliance. Alternatively, the second surface may be provided as or on a sleeve that covers the structure.

[0011] The non-parallel friction surfaces allow for effective peeling of ingredients such as garlic cloves, even if they are not all the same size.

[0012] The device may be formed by the engagement of an appliance with an attachment, or the device may be an attachment to another appliance such as a kitchen appliance, or may be a standalone appliance itself.

[0013] The second surface need not completely surround or encircle the first friction surface, preferably the second surface surrounds the first friction surface sufficiently to contain the food material to be peeled and prevent the food material from spilling out.

[0014] In a preferred configuration, the disk is rotatable around an axis, and the second surface faces the axis. As used herein, the term "facing" preferably means that the normal of the surface faces the axis. The normal can be tangent to the axis at any angle. As the disk rotates, the ingredients may be pushed outward from the axis due to centrifugal force. In this configuration, the ingredients may preferably be sent to the second surface. The second surface may be the inner surface of a container or bowl. The disk may be attached to a shaft preferably aligned with the axis, and the shaft may be driven by the shaft to rotate the disk.

[0015] Preferably, the second surface is angled at an angle of no more than 45 degrees from the axis, more preferably no more than 30 degrees, more preferably no more than 15 degrees, more preferably no more than 10 degrees, and even more preferably no more than 5 degrees.

[0016] Preferably, the disc is rotatable relative to the second surface, which may be stationary. The relative movement preferably imparts shear forces to the surface of the food material to assist in peeling.

[0017] The food material to be peeled may not be constrained between the first friction surface and the second surface. Preferably, the first friction surface and the second surface are not parallel, so that the food material is not constrained between them, allowing the food material to move under the centrifugal force caused by the rotational motion. Engagement of the food material with the first friction surface is preferably due to gravity. Engagement of the food material with the second surface is preferably the result of centrifugal force. Thus, the device can peel food materials of various sizes.

[0018] The first friction surface and / or the second surface may include a friction coating and / or patterning. The friction coating may be formed of a resilient material such as rubber, silicone, or a similar polymer, and preferably acts to grip food material. The surface patterning may be shaped as raised or recessed ribs, diamonds, crosshatching, dots, or other patterns. The patterning preferably has a smooth surface and / or is scaled to minimize or, more preferably, to prevent wear.

[0019] The second friction surface may be provided on a sleeve for use in a container for kitchen appliances. The use of such a sleeve allows the device to form part of or be used in an existing kitchen appliance (container), which may be adapted for other uses. In particular, the sleeve may cover a wall formation of the kitchen appliance. This allows the sleeve to present a second friction surface that does not include substantial protrusions or discontinuities (or includes less noticeable protrusions or discontinuities), which may help prevent damage to food during operation of the device. The disc may contact the sleeve or extend very close to the sleeve during use.

[0020] The sleeve may be formed as a rigid sleeve having first and second open ends. The first open end may allow the rotatable disk to engage with the drive and, optionally, allow food material to be inserted into the sleeve. The rigid sleeve may be formed with a shoulder connecting the side of the sleeve to the first open end so that the rigid sleeve forms a "bell" shape. The rigid sleeve may be formed of a rigid plastic material or a rigid elastomeric material.

[0021] The sleeve may be formed as a deformable sleeve and / or a relatively soft sleeve. Such a sleeve may consist of only side walls (i.e., may not include a top or bottom wall). Such a sleeve can be used as a food peeler independently of the device by being deformed by a user so that the second friction surface contacts a food item placed within the sleeve from at least two sides of the food item, and then moved relative to the food item to peel the skin of the food item. The deformable sleeve can be formed of soft silicone, a thermoplastic elastomer, or an elastomeric material.

[0022] The rotatable disc may include a portion disposed at an oblique angle relative to the second friction surface and / or another (flat) portion of the disc, with the first friction surface extending over said portion. Preferably, said portion is conical. Preferably, said portion is located at the center of the disc. The obliquely disposed portion may occupy one-quarter to three-quarters of the radius of the disc, preferably approximately one-half of the radius of the disc. The obliquely disposed portion may extend over a major portion of the (central) shaft attached to the disc, preferably extending over substantially the entire (central) shaft attached to the disc. The obliquely disposed portion may be disposed at an angle between 90 and 135 degrees, more preferably between 100 and 125 degrees, and even more preferably between 105 and 120 degrees, relative to the outer / flat portion of the disc. The obliquely disposed portion and the outer / flat portion of the disc may be coated with a soft material, such as silicone or a thermoplastic elastomer, preferably via a two-part injection molding process. The use of the angled portions can reduce the amount of radial movement of the food item during use, thereby increasing the likelihood that the food item will contact the second friction surface for effective peeling, and can also reduce damage to the food item during use. Although the angled portions are generally described as "conical," it will be appreciated that portions having different shapes (e.g., rounded or curved conical or hemispherical) can be used instead.

[0023] The first friction surface can be reversibly attached to the disc, allowing it to be removed for cleaning and replaced if it becomes worn or damaged.

[0024] Preferably, the disc can have an alternative food processing purpose: if a first friction surface can be attached to the disc (e.g., a grater disc) to convert the food processing purpose to peeling, storage space can be minimized.

[0025] The device may include a cavity below the first friction surface, and the disc may include a plurality of openings extending through to the cavity. In some configurations, the openings may be large enough to receive garlic skins. Preferably, the openings are not large enough to receive garlic cloves (which are typically 1 cm to 3 cm in size). Preferably, the openings do not have continuous openings greater than 1 cm. This may aid in separating the peeled cloves from the skins.

[0026] In a preferred configuration, the disc comprises an inner portion and an outer portion, with a plurality of openings provided in both the inner and outer portions, which can assist in creating airflow within the device, for example through the cavity.

[0027] Preferably, the opening in the outer portion is around the periphery of the disc, which prevents the opening from being blocked by the cloves.

[0028] A plurality of grilles may be provided across at least a portion of the openings. In configurations where the openings are for airflow purposes, the grilles preferably prevent peeled skin from being drawn into the cavity by the airflow. The grilles may be provided across only the openings in the inner portion, only the openings in the outer portion, or across the openings in both the inner and outer portions. Preferably, the grilles are spaced 1 cm apart.

[0029] The cavity may include a plurality of ribs for directing airflow. The ribs are preferably configured to promote airflow between the openings. In a preferred example, the ribs are configured to promote airflow from the inner portion to the outer portion. Preferably, the ribs are curved. Even more preferably, the ribs are curved away from the direction of rotation, with the radius of curvature expanding in the direction opposite to the direction of rotational motion. This can promote accumulation of skins on the inner portion of the disc and peeled cloves on the outer portion of the disc.

[0030] Preferably, the openings in the outer portion of the disc are located between the ribs, so that air can flow between the ribs and exit directly through the openings.

[0031] Preferably, the device further comprises a cover that can rotate in conjunction with the disc. The cover can provide vertical constraints on the movement of the food material. In a preferred embodiment, the cover is freely movable to change the distance between the disc and the cover. In this way, the height of the chamber can be changed, so that cloves of different sizes can be accommodated. Preferably, the cover simply rests gently on the food material by gravity.

[0032] The cover may be reversibly attachable, preferably capable of being repeatedly attached and removed from the device without damage to the cover or the device.

[0033] According to a further aspect, there is provided an attachment for a kitchen appliance, the attachment comprising a disc configured to convert the appliance into a device for peeling foodstuffs as described above.

[0034] A disc attachment with a friction surface may be attached to the food utensil, the friction surface providing the first friction surface as described above, and the second surface may be provided by the wall of a bowl or container of the food processing equipment.

[0035] According to a further aspect of the present invention, there is provided an attachment for rotary food processing equipment, the attachment having a shaft with a first part having a rotary tool for food processing and a second part having a cover, the first part and the second part being reversibly attachable.

[0036] Thus, the first portion may be placed in the food processing equipment, followed by the food ingredient, followed by the second portion. This configuration provides a safety guard. Because the rotary tool continues to rotate even after power is turned off, without the cover, the rotating disc could injure the user. The cover shields the rotary tool and helps prevent such injuries from occurring.

[0037] Preferably, one of the first and second parts is configured to transfer rotational drive from the rotary food processing equipment to the other of the first and second parts, preferably such that drive is transferred only when the two parts are mated, thereby providing a further safety guard.

[0038] The rotary tool for food processing may be, for example, a grater disc, a slicing disc, a spiralizer disc, an emulsifier disc, a friction surface disc, or a disc such as a dough hook, chopper, blender, or may have an alternative food processing purpose. The rotary tool may be a disc as described above.

[0039] The device as described above may include such an attachment. The disc as described above may be provided on a first portion of the shaft and the cover as described above may be provided on a second portion. The food material may preferably be contained between the disc and the cover.

[0040] According to a further aspect of the present invention there is provided a kitchen appliance comprising the above-mentioned device and / or attachment.

[0041] According to a further aspect of the present invention, there is provided an apparatus for peeling food material, the apparatus comprising a rotatable disc having a first friction surface and a second surface surrounding the first friction surface.

[0042] According to a further aspect of the present invention, there is provided an apparatus for peeling food material, the apparatus comprising: a disk rotatable about an axis having a first friction surface; and a second surface facing the axis. Preferably, the second surface forms an angle with the axis of 45 degrees or less. More preferably, the second surface forms an angle with the axis of 30 degrees or less. Even more preferably, the second surface forms an angle with the axis of 15 degrees or less.

[0043] According to a further aspect of the present invention, there is provided an apparatus for peeling food material, the apparatus having a rotatable disc having a first friction surface and a second surface perpendicular to the first friction surface.

[0044] According to a further aspect of the present invention, there is provided an apparatus for peeling food material, the apparatus comprising a container and a disc, the disc having a friction surface and rotatable within the container.

[0045] According to a further aspect of the present invention, there is provided an attachment for a hand blender, the attachment comprising a reversibly attachable tool and an ejector for the reversibly attachable tool.

[0046] The tool can be removed via an ejector, so the user does not need to touch the tool to remove it. This helps the user hold the tool and prevents accidents that could occur if the tool is activated. It also helps prevent food from getting on the user's hands when removing the tool.

[0047] According to a further aspect, there is provided an attachment for a kitchen appliance, the attachment comprising a reversibly attachable tool, an ejector for the reversibly attachable tool, and coupling means for coupling to the kitchen appliance, the ejector and coupling means being located on the same face of the attachment.

[0048] As used herein, "same side" is used to mean the same surface and / or side of the attachment. In use, this may be the top surface. It is often more convenient for the user, especially when using handheld appliances, if the ejector is located on the same side of the attachment that couples to the appliance motor.

[0049] Preferably the coupling means comprises structure configured to engage structure of the kitchen appliance to reversibly attach the attachment to the kitchen appliance, even more preferably the coupling means is configured to transfer drive from the kitchen appliance to the attachment, preferably to a reversibly attachable tool.

[0050] Preferably, the ejector and the coupling means are separate, allowing the tool to be removed from the attachment separately from the attachment being removed from the kitchen appliance. More preferably, the ejector and the coupling means are spaced apart from each other. This space may be at least 1 cm, preferably at least 2 cm, more preferably at least 3 cm. This helps prevent a user from accidentally activating the ejector when holding the kitchen appliance.

[0051] According to yet another aspect, there is provided an attachment for a kitchen appliance, the attachment comprising a reversibly attachable tool and an ejector for the reversibly attachable tool, the ejector being offset from an axis of the tool.

[0052] The term "offset" is used herein to mean that the ejector is preferably actuated in an actuation direction that is not coincident with the axis of the tool. This configuration can provide space for the tool to align with other mechanisms, for example, a gearbox for transmitting rotary drive. Preferably, the actuation direction is parallel to the axis of the tool.

[0053] Preferably, the reversibly attachable tool and the ejector for the reversibly attachable tool are provided on opposite faces of the attachment, which tends to ensure that the direction of actuation is parallel to the axis of the tool.

[0054] Preferably, the reversibly attachable tool is ejected along an ejection direction, and the ejector includes an ejector controller that operates in an actuation direction, the actuation direction being parallel to the ejection direction. Preferably, the ejection direction is along the axis of the tool, which allows for more efficient transmission of the ejection force.

[0055] The controller may be a button, a lever, or a switch.

[0056] In a preferred configuration, the actuation direction may be offset from the removal direction, which is used to mean that the actuation direction is parallel to the removal direction but not coincident with it, to allow space for additional elements in the attachment, for example to couple a tool to a motor.

[0057] The ejector may further include an ejector pin for each component of the tool. The pin can be used to transmit force to eject the tool. Preferably, there are two or more ejector pins, and the ejector pins have different lengths. This allows the user to eject the tools in sequence, reducing the force required to eject each tool.

[0058] In a preferred configuration, the ejector further includes a guide structure parallel to the ejection direction, which allows the ejector to smoothly move downward and reduces the influence of rotational moment. The guide structure may preferably include ribs parallel to the ejection direction.

[0059] The guide structure is preferably parallel to the actuation direction and may be aligned with the actuation direction, which helps to guide the ejector smoothly downward.

[0060] Preferably, the guide structure further comprises a plurality of struts in a direction perpendicular to the ejection direction, which can strengthen and / or reinforce the ejector mechanism to withstand shear forces while minimizing weight and volume.

[0061] According to a further aspect, a kitchen appliance is provided having an attachment having a reversibly attachable tool, a first ejector mechanism for ejecting the attachment from the kitchen appliance, and a second ejector mechanism for ejecting the reversibly attachable tool from the attachment, wherein the first ejector mechanism is separate from the second ejector mechanism.

[0062] By providing two separate ejector mechanisms for attachment removal and tool removal, the equipment can be disassembled in stages. Furthermore, the user does not need to touch the tool to remove it.

[0063] The attachment for the kitchen appliance may preferably be an attachment as described above.

[0064] The kitchen appliance may be a handheld kitchen appliance, preferably a hand blender.

[0065] According to a further aspect, there is provided a sleeve for use in a device, preferably a kitchen appliance, for peeling foodstuffs, optionally with an inner surface of the sleeve providing a friction surface for peeling the foodstuffs. The sleeve may be used in combination with a rotating element disposed inside the sleeve, optionally with the rotating element providing a further friction surface.

[0066] According to a further aspect, there is provided a rotatable disc for a device, preferably a kitchen appliance, for peeling foodstuffs, comprising a first portion and a second portion arranged at an oblique angle to the first portion, preferably wherein at least the second portion is provided with a friction surface, more preferably wherein the second portion is conical in shape.

[0067] The present invention also includes kits of parts for constructing any of the devices or device elements described herein.

[0068] The present invention extends to methods, systems and apparatus substantially as herein described and / or illustrated with reference to the accompanying drawings.

[0069] The invention extends to any novel aspect or feature described and / or illustrated herein.

[0070] Apparatus features described herein may also be provided as method features, and vice versa. As used herein, means-plus-function features may alternatively be expressed in terms of their corresponding structure, such as, for example, a suitably programmed processor and associated memory.

[0071] Any feature of one aspect of the invention may be applied to other aspects of the invention in any appropriate combination. In particular, method aspects may be applied to apparatus aspects, and vice versa. Furthermore, any, some, and / or all features of one aspect may be applied to any, some, and / or all features of any other aspect, in any appropriate combination. It should also be understood that specific combinations of the various features described and defined in any aspect of the invention may be implemented and / or provided and / or used independently.

[0072] It is also to be understood that specific combinations of the various features described and defined in any embodiment of the present invention can be implemented and / or provided and / or used independently.

[0073] In this specification, the term "or" can be interpreted in an exclusive or inclusive sense unless otherwise stated.

[0074] As used herein, the term “removable attachment” (and similar terms such as “removably attachable” and “reversibly attachable”) when used in reference to an attachment between a first object and a second object preferably means that the first object can be attached to and detached from the second object (preferably, repeatedly reattached, redetached, etc.) and / or that the first object can be removed from the second object without damaging either the first object or the second object, more preferably that the first object can be reattached to the second object without damaging either the first object or the second object, and / or that the first object can be removed from (and optionally reattached to) the second object by hand and / or without the use of tools (e.g., a screwdriver, wrench, etc.). In this regard, mechanisms such as snap fits, bayonet attachments, and hand-rotatable locking nuts can be used.

[0075] Furthermore, functionality that is implemented in hardware may generally be implemented in software and vice versa, and any references herein to software and hardware functionality should be construed accordingly.

[0076] While the present invention is described in the context of domestic food processing and cooking machinery, it can also be implemented in any field where efficient, effective, and convenient cooking and / or processing of materials is desired, either on an industrial scale and / or in small quantities. Fields of use include the preparation and / or processing of chemicals, pharmaceuticals, paints, building materials, clothing materials, agricultural and / or animal feed and / or treatments (including fertilizers, grains, and / or other agricultural and / or animal products), oils, fuels, dyes, cosmetics, plastics, tars, finishes, waxes, varnishes, beverages, medical and / or biological research materials, solders, alloys, waste liquids, and / or other substances. References herein to "food," "ingredients," or similar terms can be substituted with such working media.

[0077] The invention described herein can be used in any kitchen appliance and / or as a stand-alone device. This includes any home food processing and / or cooking machine, including both top-drive machines (e.g., stand mixers) and bottom-drive machines (e.g., blenders or food processors). It can be implemented in heating and / or cooling machines. The invention can also be implemented in both handheld appliances (e.g., hand blenders) and tabletop appliances (e.g., blenders). It can be used in appliances integrated into a worktop or work table, or as a stand-alone device. The invention can also be provided as a stand-alone device, whether motor-driven or manually driven.

[0078] As used herein, the term "processing" preferably means any action relating to or contributing to the transformation of a product into an ingredient or the transformation of an ingredient into an ingredient in a different form, including, by way of example, the application of mechanical operations (e.g., cutting, beating, blending, whipping, dicing, spiraling, grinding, extruding, molding, kneading, etc.) and the application of hot or cold. As used herein, "food" and "ingredient" can include beverages and frozen ingredients, as well as ingredients used to make them (e.g., coffee beans). [Brief explanation of the drawings]

[0079] [Figure 1] 1 shows a side view of a food processing apparatus according to an embodiment of the present invention; [Figure 2] 1 shows a food processing device lid connected to a hand blender shaft. [Figure 3] 1 shows a cross-sectional view of a food processing device. [Figure 4] 1 shows a side view of the disc insert and cover disc. [Figure 5] 1 shows a side view of an embodiment of a disc insert. [Figure 6] 10 shows a side view of a further embodiment of a disc insert. [Figure 7] 10 shows a side view of a further embodiment of a disc insert. [Figure 8] 10 shows a side view of a further embodiment of a disc insert. [Figure 9] 10 shows a side view of a further embodiment of a disc insert. [Figure 10] 10 shows a side view of a further embodiment of a disc insert. [Figure 11] 11 shows a top view of the disc insert of FIG. 10. [Figure 12a] 10 shows a perspective view of an alternative disc insert. [Figure 12b] 12b shows a cross-sectional view of a food processing device including the sleeve and disc insert of FIG. 12a. [Figure 12c]12b shows a cross-sectional view of a food processing device including the alternative sleeve and disc insert of FIG. 12a. [Figure 12d] Sleeve shown. [Figure 12e] 1 shows an alternative sleeve. [Figure 13] FIG. 1 shows a perspective view of a hand blender with a beater attachment attached. [Figure 14] FIG. 1 illustrates a side view of one embodiment of a hand blender attachment. [Figure 15] FIG. 15 shows a perspective view of the hand blender attachment of FIG. 14. [Figure 16] FIG. 16 shows a cross-sectional side view of the hand blender attachment of FIGS. 14 and 15 with a tool attached. [Figure 17] FIG. 17 shows a cross-sectional side view of the hand blender attachment of FIGS. 14-16 without a tool attached. [Figure 18] FIG. 18 shows a perspective view of the inner surface of the button element of the hand blender attachment of FIGS. 14 to 17. [Figure 19] FIG. 19 shows a perspective view of the outer surface of the button element of the hand blender attachment of FIGS. 14-18. DETAILED DESCRIPTION OF THE INVENTION

[0080] Peeling insert

[0081] Peeling garlic and similar vegetables can be tedious and can leave a persistent odor on the cook's hands. Therefore, it is desirable to provide an electric garlic peeler. Figures 1 and 3 show a first embodiment of the present invention for peeling garlic in a rotary food processing appliance, comprising a tool attachment 100, a lid 200, and a bowl 300. The attachment comprises a shaft 120 and a disk 110 rotatable within the bowl 300. At the end of the shaft is a means 140 for transmitting drive from a motor unit that can be attached via the lid 200.

[0082] In this embodiment, tool 100 is provided as an attachment for a hand blender or immersion blender 700, as shown in FIG. 2. Tool attachment 100 includes a locating post 130 that engages with a corresponding recess 330 in the base of bowl 300. Tool 100 is configured to be held in a fixed position within bowl 300 by engagement of locating post 130 with corresponding recess 330. Recess 330 in bowl 300 includes a locating pin 332 that fits within a hole in post 130 of tool attachment 100. Shaft 120 of tool 100 is rotatable relative to locating pin 332, such that bowl 300 remains in a fixed position while attachment 100 rotates within it.

[0083] The appliance's motor unit is located within the handle of a hand blender 700, which is attachable to the lid 200. FIG. 2 shows the lid 200 connected to the handle of the hand blender 700. The blender handle is received within a channel 240 extending from the top surface of the lid 200. The lid 200 and the hand blender handle have corresponding locking structures, such as a bayonet mechanism and / or a snap lock, to secure the connection. The upper edge of the channel 240 has a notch 242 that can receive a release button 710 of the hand blender 700. Actuating the release button 710 releases the bayonet and / or snap lock mechanism, disengaging the blender handle 700 from the lid 200.

[0084] The hand blender 700 can be powered on via a control 750. The drive transmission mechanism in the lid is shown in cross section in FIG. 3. A transmission pin 252 is provided within the channel 240 for engaging a motor mechanism located in the handle of the food processing equipment. The transmission pin 252 transmits torque to a transmission mechanism 250 in the lid, which can then transmit the torque to the tool. The transmission mechanism 250 transfers the rotational motion of the motor to the tool via engagement with a coupling component 140 located at the end of the shaft 120 of the tool attachment 100. The coupling component 140 includes a spade-shaped structure 142 that engages with the transmission mechanism 250. In this manner, rotational motion is imparted to the shaft or axis 120 of the tool 100.

[0085] Lid 100 includes a lower edge 210 projecting from its periphery that fits over bowl 300. Lower edge 210 includes protrusions 212 that engage corresponding slots (not shown) in the inner surface of the bowl to form a secure connection. The lid may further connect to the bowl via a bayonet and / or snap-fit ​​mechanism. Lid 200 further includes an outwardly projecting rim 230 that covers the interface between lid 200 and bowl 300.

[0086] Tool attachment 100 includes a substantially flat disc 110 disposed on shaft 120, with disc 110 rotatable about an axis defined by shaft 120. When assembled (as shown in FIG. 3 ), the arrangement of tool 100, lid 200, and bowl 300 defines a chamber 350 for receiving food item 50 between an upper surface of disc 110 and a lower surface of lid 200. The upper surface of disc 110 includes friction surface 112. The inner surface of bowl 300 forms second surface 310, which can act as a second friction surface. When garlic cloves 50 (or similar food items to be peeled) are placed within chamber 350, they rest on friction surface 112 of disc 110. Disc 110 rotates within bowl 300, while bowl 300 remains stationary.

[0087] The disc 110 is positioned within the bowl 300 such that the second friction surface 310 surrounds the disc friction surface 112. The second friction surface 112 abuts the outer periphery of the disc 110 and its friction surface 112. The angle between the disc friction surface 112 and the second friction surface 310 may be 90 degrees, although this is not necessary for the present invention to function properly. The two friction surfaces 112, 310 may not be parallel, but may be disposed at an angle between 45 and 135 degrees. In the illustrated embodiment, the surfaces 112, 310 are disposed at an angle slightly greater than 90 degrees. Both the disc friction surface 112 and the bowl friction surface 310 face the chamber 350, which contains the food to be peeled. The disc friction surface 112 faces upward, facing the opening of the chamber 350. Because the disc friction surface 112 and the second friction surface 310 are not parallel, the clove 50 is not constrained between the two friction surfaces. Rather, the clove 50 is held against the disc friction surface 112 by gravity. As the disc rotates, the clove 50 is pushed outward by centrifugal force. Because the second friction surface faces the axis of the shaft 120, centrifugal force presses the clove 50 against the second friction surface 310.

[0088] The tool 100 is formed as two separable main components, a disk insert 102 and a shank attachment 104, as shown in FIG. 4. The disk insert 102 includes a disk 110 and a shaft 116. The shaft 116 is receivable within the shank 120 of the shank insert 104. A cap 150 is secured to the top of the shaft 116 by a screw 152, closing the shaft 116 and preventing the ingress of foodstuffs. When connected, the shaft 116 and shank 120 act as an axle for the tool 100. The shaft 116 and shank 120 include corresponding mating structures to allow rotational motion to be transferred between the components. In this exemplary embodiment, splines 118 are provided extending along the outer peripheral shaft 116, which are located within corresponding slots (not shown) in the shank 120. Alternatively, ribs can be provided within the inwardly extending shank and corresponding slots can be provided on the shaft, in which the ribs are located. Engagement formations 114 and 124 in the form of teeth are also provided at the ends of the splines, at the interface between the shank 120 and the disc 110. In this embodiment, the shank attachment 104 transfers rotational motion to the disc insert 102. However, a component of the disc insert may alternatively be coupled to a motor that transfers drive to the component of the shank insert.

[0089] Further attachments may be attached to the tool insert 100 to improve or change the mode of food processing. The shank 120 includes a structure 122 configured to engage and secure the further attachment. In this embodiment, the structure 122 is provided as a slot extending along the length of the shaft 120 (and thus along the axis of rotation) into which a protruding structure on the further attachment can be inserted. This structure allows the further attachment to move freely along the axis of the shaft 120, changing the distance between the disc 110 and the further attachment. This also facilitates the transmission of rotational forces to the further attachment, causing the further attachment to rotate synchronously with the rotation of the disc 110.

[0090] Another example of an attachment is the cover 400, as shown in FIG. 4. The cover 400 has a disk-shaped footprint corresponding to the footprint of the tool disk 110. The cover 400 serves as the upper surface of the chamber 350. The cover 400 is free to move up and down the shaft 120 (along the axis of rotation), thereby varying the distance between the cover 400 and the disk 110 and, therefore, the size of the chamber 350. The cover 400 is gently placed on the garlic cloves 50, allowing for gentle gravity pressure. Thus, the cover 400 minimizes the size of the chamber 350 in which the cloves 50 are housed. When the motor is turned on, the cover 400 rotates with the disk 110. During rotation, centrifugal force acting on the cloves 50 causes them to move randomly. The cover has the effect of minimizing vertical movement and promoting lateral movement toward the second friction surface 310. In this way, the cloves 50 can be more quickly and efficiently urged toward the wall 310. The cover 400 is preferably made of a food-safe plastic material and has a weight that inhibits but does not hinder movement. Thus, the cover may have a weight on the order of 10-100 g, preferably 15-35 g, more preferably 20-30 g, and even more preferably 25 g. The underside of the cover need not be parallel to the friction surface 112 of the disc 110. For example, the cover may be angled upward from the center toward the outer portions to encourage the cloves 50 to move toward the wall 310 of the bowl 300.

[0091] In use, the disc insert 102 is placed and secured within the bowl 300 as described above. The food material 50 to be processed is then placed within the chamber 350 on the friction surface 112 of the disc 110. The shank insert 104 is then fitted over the disc insert 102, holding the food material within the chamber 350 defined by the friction surface 112, the walls of the bowl 300, and the cover 400. When the appliance is turned on and the disc 110 is set to rotate by the motor, centrifugal force moves the garlic cloves 50 toward the second friction surface 310 on the inner wall of the bowl 300 and into the outer region of the cavity. The relative movement between the disc friction surface 112 and the second friction surface 310 exerts a shear force on the surface of the garlic cloves 50, thereby removing the skin.

[0092] Typically, conventional peeling devices apply shear force by rubbing the cloves between two parallel surfaces. In such a configuration, the width of the gap between these two surfaces is determined by the larger cloves. Therefore, only the larger cloves contact both surfaces and are effectively peeled. The present invention utilizes gravity to hold the cloves against the friction surface 112 of the disc and centrifugal force to engage the cloves with a second friction surface surrounding the disc 110. The centrifugal force acts on cloves of all sizes, and all cloves contact the friction surface. Therefore, both small and large cloves are subjected to shear force from the friction surface as a result of the rotational motion. Therefore, cloves of all sizes can be effectively peeled.

[0093] A sufficiently high rotational speed of the disc 110 is required to exert sufficient centrifugal force on the clove 50 to propel it towards the second friction surface 310. This is usually achieved by rotation at a speed typically exceeding 1,000 RPM, although rotational speeds of preferably between 1,000 and 5,000 RPM, more preferably between 2,500 and 3,500 RPM, and even more preferably 3,000 RPM may be more typically used.

[0094] The friction surface 112 is formed of a resilient material, such as rubber, silicone, or a similar polymeric material. Such materials provide a higher coefficient of friction than materials typically used in tool attachments, such as metal. To avoid damaging the garlic cloves (or other food items being peeled), the disc's upper friction surface is not formed of an abrasive material, such as sandpaper, that has a grainy surface designed to scratch or abrade. Abrasive materials could scratch the garlic surface, resulting in less than optimal cooking conditions for the cloves. Garlic cloves often release juice, which can leave a lingering odor on the user's hands when handling peeled cloves. The friction surface 112 of the present invention has a smooth outermost surface and is less abrasive than P1200 sandpaper. In this way, the skin of the food item is removed by rubbing, rather than by abrasion. The friction surface may have a pattern in the form of either recessed or protruding features. These features may be formed from the same or different materials and may take the form of ribs, dots, cross-hatching, or similar patterns configured to enhance grip. The outermost surface of this patterned material can still be considered smooth, in that it is formed from a smooth, continuous layer rather than granular particles. The inner surface of the wall 310 of the bowl 300 may simply be formed from plastic, as is customary in food processing equipment, or may further include a coating of a similar friction material to enhance the peeling process. The inner surface of the bowl may be coated with a material such as rubber, silicone, thermoplastic polymer (TPE), or other polymer to increase the coefficient of friction. The surface may also be patterned to provide a structure that exerts shear stress on the cloves during tool rotation. As shown in Figure 3, patterned structures such as ribs 320 can be provided to enhance friction on the inner surface of the wall 310. Such ribs 320 are often already present in existing food processing bowls, and the present invention can be implemented within them. The second friction surface 310 on the inner surface of the bowl need not produce a higher coefficient of friction than a typical food processing bowl, or indeed any other surface of food processing equipment.If it exerts a shear force on the food being peeled and does not significantly abrade the food, it can be considered a friction surface.

[0095] Bowl 300 and lid 200 are preferably formed from a food-safe thermoplastic material for ease of formation and cleaning. Disk 110 is formed from a food-safe, hard metal or plastic material and coated with a material such as rubber, silicone, thermoplastic polymer (TPE), or other polymer that forms friction surface 112. This coating may be fixed, or it may be reversibly removable and reattachable, allowing it to be removed without damage and replaced as needed. For example, disk 110 may be formed as a grating surface or other form of food processing surface and include a replaceable coating to convert the top surface into a friction surface. In this way, the disk's function can be reversibly converted between various food processing functions. Furthermore, as the friction surface wears or cracks, it can be easily replaced with a new, removable friction surface coating. Additionally, the disk may be made from a high-friction material (such as a high-hardness TPE) to provide the friction surface itself without additional components. Bowl 300, lid 200, and disk 110 are preferably all dishwasher safe. To provide a configuration that is much easier to clean than an elastic element for peeling in a deformable shape such as a balloon, which is likely to collect water inside during washing, even when the replaceable coating itself is not placed in a dishwasher.

[0096] The cover 400 is shown in FIG. 4 as pre-assembled on the shank insert 104 and is attachable to the disk insert 102 by engagement of the splines 118 with the components 114 and 124 (as described above). The cover 400 may be provided attached to the shank 120. Alternatively, the cover 400 may be provided as a separate component and attachable to the shank by sliding the cover 400 over the shank while formations (not shown) engage with the slits 122 on the shank. The shaft 116 and disk insert 110 are preferably provided as a single, integral component (disk insert 102) to simplify and reduce manufacturing costs. However, the disk 110 may be provided as a separate component attachable to the shank. This may be preferable, for example, when the present invention is implemented in a food processor.

[0097] Figures 5-11 show alternative embodiments of the disk insert as a unitary piece attachable to a shank 120. Figure 5 shows a simple insert 1100 with a disk 1110 and a drive shaft 1120 as a single unitary component. The disk's upper surface 1112 provides a friction surface for peeling garlic or similar foodstuffs. The drive shaft 1120 includes slots 118 that can engage splines in the drive shank to transmit rotational drive. This represents an alternative to the configuration shown in Figures 1, 3, and 4, in which splines are provided in the shaft and corresponding slots in the drive shank.

[0098] 6 illustrates an embodiment of the invention in which an insert 2100 includes a shaft 2120 and a disc 2110 formed from a rigid material. The top surface 2112 of the disc 2110 includes ribs 2114 or other structure that form the disc's friction surface. The ribs 2114 or similar structure can improve the friction surface's grip with the food item. The ribs 2114 can also provide contact points with the clove that exert shear stress on the outer surface, thus facilitating peeling. The disc 2110 itself may be formed from stainless steel or a thermoplastic material.

[0099] FIG. 7 shows a further embodiment in which the insert 3100 comprises a shaft 3120 and a disc 3110. The disc 3110 is formed of a hard material, while the upper surface 3112 has a coating 3114 formed of a resilient, food-safe material such as rubber, thermoplastic polymer (TPE), or silicone that forms the friction surface 3112. The coating 3114 may be permanently attached (non-removably) to the disc 3110. This can be manufactured, for example, by overmolding. Alternatively, the coating 3114 may be a separate entity in the form of a soft disc that is placed on top of the base disc 3110, with or without further fastening. The soft disc may optionally comprise scaffolding elements, such as spokes and / or a ring of harder material, to prevent the cover from becoming dislodged during use.

[0100] FIG. 8 shows a similar embodiment in which the coating 4114 is formed of a soft material and can be removably attached to the base disc 4110, for example, by snap-fitting onto the outer edge. The base disc 4110 can have a secondary use, for example, as a grating disc, which can be converted into a peeling disc by the attachment of a soft cover. The disc 4110 and cover 4114 can have corresponding openings through which the peels can pass but not the garlic cloves. Because garlic cloves are typically 1-3 cm in size, the openings preferably have uninterrupted openings of 1 cm or less. The openings themselves can be any dimension less than 1 cm, or a grid can be provided across the openings at intervals of 1 cm or less. The peels can then accumulate in the cavity 4116 below the disc, while the cloves remain on top of the disc 4110.

[0101] In a slightly modified embodiment, as shown in Figure 9, a soft material 5114 is positioned a distance above the base disc 5110. An opening 5118 is provided in the soft material 5114 but not in the disc 5110 itself. The garlic skins therefore fall through the opening 5118 into the space between the soft material 5114 and the disc 5110, forming a cavity 5116 for receiving the garlic skins. The skins can accumulate in the cavity 5116 and in this way are separated from the peeled cloves.

[0102] A further slightly modified embodiment is shown in FIGS. 10 and 11, with FIG. 11 providing a top view of the insert 6100 of FIG. 10 with a breakout of the space between the soft material 6114 and the disk 6110, forming a cavity 6116. This cavity 6116 is also provided with curved ribs 6122 shaped to function as a radial fan. The ribs 6122 are curved away from the direction of rotation so that when the disk 6110 is rotating, the radial fan generates an airflow that promotes air movement from the inner portion to the outer portion of the cavity 6116. An inlet opening 6130 in the inner portion of the disk allows air from above the soft cover 6114 to enter the cavity 6116. The air can then flow across the cavity and exit through an outlet opening 6140 located in the outer portion of the disk 6110. The outlet 6140 is preferably located at the periphery of the disk 6110. The open arrows in Figures 10 and 11 indicate the air flow, while the solid arrow in Figure 11 indicates the direction of rotation of the disk 6110. This air flow helps separate the garlic cloves from their skins. The cloves are pushed toward the outer wall of the container by centrifugal force. However, the skins are very light and are blown toward the inner part of the disk 6110 by the air flow. In this way, the cloves are collected at the outer edge of the disk 6110 by the container wall, while the skins are collected inward along the shaft 6120. A grill element 6132 is provided at the inlet 6130 to reduce the size of the opening, thus preventing skin fragments from being sucked into the cavity 6116. Since the typical size of a garlic clove is 1 to 3 cm, it is preferable that the spacing between the grilles (uninterrupted openings) is usually less than 1 cm. A grill can also be provided at the outlet 6140, especially if the grill is located on the top surface of the disk 6110 rather than on the periphery.

[0103] A further alternative is shown in Figures 12a-12e. Figure 12a shows a further insert 7100 including a conical portion 7128. The conical portion 7128 is centrally located on the disc 7110 and extends from the disc 7110 to cover substantially all of the shank 7116 (leaving only the drive formation 7126 extending from the top of the shaft 7116). The conical portion 7128 extends across approximately half the diameter of the disc. The conical portion 7128 forms an angle of approximately 10-115 degrees with the flat portion of the disc 7110. The first friction surface 7112 extends across both the flat portion of the disc 7110 and the conical portion 7128. The effect of providing such a conical portion is that radial movement of the food material may be reduced (or the radial component of any movement of the food material may be reduced). Such radial movement of the food material may be undesirable because the food material may contact the second friction surface from a direction perpendicular to the second friction surface, which generally results in ineffective peeling and may damage the food material (e.g., by shattering parts of the food material).

[0104] FIG. 12b shows a further insert 7100 mounted within bowl 300 and surrounded by lid 200. For clarity, the connection between further insert 7100 and transmission mechanism 250 and recess 330 in the base of bowl 300 is not shown in the figure. Apart from the inclusion of further insert 7100, the illustrated configuration differs from the configuration of FIG. 3 in that a removable sleeve 900 is provided between the wall of bowl 300 and further insert 7100. Sleeve 900 comprises a generally cylindrical wall that generally conforms to the surrounding bowl wall, with the inner surface of said wall of the sleeve acting as second friction surface 920 rather than the bowl wall. Sleeve 900 is open at its upper and lower ends to allow the device to operate without any other substantial modification from the previously described configuration. Further insert 7100 is used without cover 400 (although such a cover may alternatively be used).

[0105] Sleeve 900 shown in FIG. 12b (and also shown in FIG. 12d) is a rigid sleeve including a shoulder 910 and an upstanding wall 930 connected to shoulder 910 and defining the upper open end of the sleeve. The use of such shoulder 910 helps the sleeve conform to the shape of bowl 300 and lid 200. Sleeve 900 forms a generally "bell"-like shape and is configured to simply snap into place within bowl 300. Optionally, a positioning feature 940 is provided on sleeve 900 and / or bowl 300 and / or lid 200 to help prevent sleeve 900 from rotating with additional insert 7100 during use. For example, positioning feature 940 can be provided on an outer portion of sleeve 900 to abut against a rib on bowl 300, thereby preventing sleeve 900 from rotating during use.

[0106] 12c and 12e, the sleeve 900 may be a soft, deformable sleeve that does not include a shoulder 910. This means that the sleeve 900 does not have to extend the entire length of the shaft 7116, as shown in FIG. 12c. The deformable sleeve 900 may have a further application outside the device in that it may be used manually to peel food items in the manner of the known "garlic roller" (food items are placed within a deformable tube and compressed by the user while rolling the tube, peeling the food items by friction).

[0107] The configurations of Figures 5 to 12c are preferably implemented on an insert where the disc is integral with the shank. However, they may also be implemented on an insert where the disc is a separate component that can be attached to the shank of the food processing equipment. All of these configurations may also be implemented in combination with a cover element as described above.

[0108] In an alternative embodiment, the present invention may be provided as an attachment for an existing food processing tool. For example, the disc may be an attachment that can be placed on a grater disc, dough hook, or similar rotating tool to provide an upper friction surface, which is detachable via a snap-fit ​​connection. When the food processing tool is turned on, the disc rotates as well. Garlic cloves are pressed against the outer edge of the bowl, and the skin is removed by the interaction of the friction surface on the top edge of the disc with the friction surface on the inner wall of the bowl. In this way, the attachment can convert the tool into a garlic clove peeler, which may be provided with a structure that functions as a cover element.

[0109] For added safety, an interlock system may preferably be included to determine whether drive is transmitted. For example, the interlock system may prevent drive transmission when the lid 200 is not engaged with the bowl 300. For example, a push rod in the lid 200 may be activated by attaching the lid 200 to the bowl 300, thereby activating a microswitch associated with the hand blender 700 and operating the motor of the hand blender 700. In another example, the transmission mechanism 250 of the lid 200 may include a spring clutch biased toward a disengaged position (or neutral position), e.g., by a coil spring, thus preventing transmission of drive when the lid 200 is not properly attached to the bowl 300. Thereafter, when the lid 200 is attached to the bowl 300, the spring clutch may be activated (e.g., via a push rod) to engage and allow drive to be transmitted from the hand blender 700 via the transmission mechanism 250.

[0110] Although tool 100 is described above as being powered by a detachable hand blender 700, tool 100 may alternatively be powered by a motor unit integrally formed with lid 200. This cheaper and simpler configuration is known as a "mini-chopper." In another alternative, rather than using hand blender 700, a hand mixer may be used instead, in which case tool 100 would be driven through an opening normally used to receive and drive a beater-spindle.

[0111] The control mechanism (e.g., control 750) of tool 100 can be used to operate the motor driving tool 100 in either a "pulse" mode, in which tool 100 is driven only while the user activates the control (e.g., by holding down a button), or in a continuous mode (in which the motor is activated by user interaction and remains on until the user again interacts with the controller to deactivate the motor). Continuous mode is advantageous in that it does not require the user to continually interact with the control, allowing them to step away and perform other tasks. A pulse setting is particularly advantageous for short-duration jobs where over-processing of food must be avoided and also improves safety, as the motor stops as soon as the user stops, for example, by pressing a button. Thus, the user can visually monitor the progress of the garlic peeling and stop pressing the button (e.g., control 750) as soon as they know the peeling is complete or if a dangerous condition occurs. Thus, if control 750 can enter continuous mode and pulse mode, the interlock system described above desirably prevents control 750 from entering continuous mode when tool 100 or lid 200 is attached to hand blender 700. Thus, the interlock system can control how drive is transmitted, preferably preventing drive transmission in continuous mode when tool 100 is engaged with the motor, and / or preferably only allowing drive transmission in pulse mode when tool 100 is engaged with the motor. However, in some embodiments, control 750 may be configured to only be able to enter "pulse" mode and not be able to enter continuous mode at all.

[0112] The present invention can be implemented in food processing equipment other than hand blenders or immersion blenders. For example, a peeling insert according to the present invention can be modified to function as an attachment for a blender, food processor, or stand mixer, and can be powered from below.

[0113] Ejector button

[0114] 13-19 show an additional attachment 500 for a hand blender or immersion blender. FIG. 13 shows a perspective view of the attachment 500 connected to a handle 700 of the hand blender. The hand blender 700 is connectable to a power source via a cable 800 and includes a motor. The attachment 500 can be removed from the hand blender 700 by pressing an attachment release button 710. The attachment 500 holds and drives a tool 600 (two beaters are shown as an example), which can be removed from the attachment 500 by actuating a tool ejector button 540. Thus, removing the attachment 500 from the hand blender 700 is a separate operation and involves a separate mechanism from removing the tool 600 from the attachment 500.

[0115] 14 and 15 show side and perspective views of attachment 500 with tool 600 attached. In a similar manner as described above, the shaft or handle of hand blender 700 contains a motor and fits into channel 560 on the attachment, engaging transmission mechanism 520 (shown in FIGS. 16 and 17). Hand blender 700 is secured within channel 560 by corresponding engagement structure, such as one or more openings 566 and / or notches 564 for receiving corresponding structure on blender shaft 700. The blender shaft can be attached via a bayonet and / or snap-fit ​​mechanism. Two attachment release buttons 710 are located on either side of handle 700, and the user presses them together. This action disengages the bayonet and / or snap-fit ​​mechanism, thereby releasing attachment 500 from the blender shaft. The lip of channel 560 includes a curved surface 562 for accommodating attachment release button 710.

[0116] 16 and 17 show cross-sectional views of attachment 500. The drive shaft can be received in receiving tab 568 at the base of receiving channel 560. Attachment 500 includes a transmission mechanism 520 that engages a motor in hand blender shaft 700, which includes a gear 580 in which tool 600 is received. These components transmit rotational motion to attachment tool 600. Tools such as beaters, whisks, or the like, as shown, can be attached to and detached from attachment 500.

[0117] The tool 600 typically comprises a shaft with a food processing structure at one end. The other end of the tool 600 comprises a channel 610 extending around the shaft of the shaft. The radius of the shaft decreases at the channel and then increases at the end of the shaft. The tool 600 is attached to the attachment 500 by a snap connection between a snap hook 548 located on the rotating gear 580 of the transmission mechanism 520 and the channel 610 on the tool 600. The tool 600 can be removed by pressing a button 540 located on the top surface of the attachment 500. The mechanism by which the button 540 releases the tool 600 from the gear 580 is shown in Figures 16 and 17. The button 540 protrudes through the attachment housing 510 and is movable in a direction parallel to the rotation axis of the tool 600. The button 540 is formed as part of an ejector element 522 that transmits axial force from the button 540. The ejector element further comprises two pins 544a and 544b. These two pins 544a, 544b are located directly above each of the tools 600. When a user presses the button 540, force is transmitted by the element 522 to the pins 544a, 544b, which then apply an axial force to the tool 600. This axial force pushes the tool 600 out of the snap connection, releasing it from the transmission mechanism 520. In this manner, the user can release the tool 600 without having to directly touch it. Additionally, the mechanism for removing the tool from the attachment is separate from the mechanism for removing the attachment from the motor source. This allows for more carefully controlled separation, occurring sequentially rather than simultaneously, improving safety.

[0118] The pins 544a, 544b move in an ejection direction that coincides with the axis of the tool 600. However, the button 540 is not aligned with the tool. Although the button 540 and the pins 544a, 544b move in parallel directions, their movement vectors are offset from one another. Both the position of the button 540 and its actuation direction are offset from the axis of the tool 600 in that they are not aligned with the axis of the tool. In this way, the ejector mechanism can be mounted around any transmission mechanism and tool, as needed. Therefore, the presence of the ejector button does not prevent the attachment from being used in combination with existing equipment. For example, in some existing machines, the tool may be aligned with the motor. However, this configuration can create a tilting moment. To compensate for this, the ejector element 522 includes ribs 524 on its front wall near the button 540. When the button 540 is pressed, these ribs 524 guide and stabilize the movement of the button 540 and element 522 within the gearbox 520 housing. The button 540 and pins 544a, 544b then move smoothly downward with minimal or no tilting or rotation. While ribs 524 are used in this embodiment, it should be understood that any guide element of sufficient length to compensate for the tilting moment may be used. The ejector element may further include struts 526 extending perpendicular to the ejection direction, preferably between the button 540 and pins 544a, 544b, as shown in FIG. 19 . These act to strengthen and improve the rigidity of the ejector element 522, inhibiting plastic deformation as a result of shear stress. The use of struts is preferred to increase the overall thickness or density of the element, thereby minimizing the weight and volume of the element.

[0119] The button 540 is preferably located on the side opposite the tool entry point (the side where the tool is placed) so that the direction the button is pressed is the same as the direction of movement required to release the tool. Other release controllers, such as levers or slide buttons, can also be used. These can be located on the side of the attachment 500, and the tool can be released by pushing or sliding the mechanism downwards, with the actuation direction parallel to the removal direction.

[0120] 18, the two pins 544a, 544b have different lengths. This has the effect that the pins 544a, 544b do not engage the tool 600 at the same time. Therefore, the user does not need to remove the tools 600 at the same time, reducing the force required by the user to remove the tool 600. Alternatively, the present invention may be implemented on a tool attachment that only attaches one tool, for example, a balloon whisk.

[0121] In the illustrated embodiment, button 540 contacts (either directly or through an intermediate element) resilient element 546. Resilient element 546 presses on button 540, biasing it to an upward position away from the surface of housing 510. In an alternative embodiment, the button may be biased to a lower position and only rise to a higher level above the surface of housing 510 when a tool is connected to gear 580.

[0122] The invention has been described purely by way of example, and it will be understood that modifications of detail can be made within the scope of the invention.

[0123] Each feature disclosed in this specification, and (where appropriate) the claims and drawings, may be provided independently or in any suitable combination.

[0124] Any reference numerals appearing in the claims are by way of illustration only and shall not be construed as limiting the scope of the claims.

Claims

1. A kitchen appliance equipped with an attachment, The attachment is coupling means for connecting to the kitchen appliance; a reversibly attachable tool that can be detached from the attachment; an ejector operable to remove the reversibly attachable tool; The kitchen appliance further comprises an additional ejector operable to remove the coupling means of the attachment from the kitchen appliance, the additional ejector being separate from the ejector for the reversibly attachable tool, and the ejector for the reversibly attachable tool and the additional ejector of the coupling means being spaced apart from each other.

2. The kitchen appliance of claim 1 , wherein the reversibly attachable tool and the ejector for the reversibly attachable tool are provided on opposite sides of the attachment.

3. 3. The kitchen appliance of claim 1, wherein the reversibly attachable tool is ejected along an ejection direction, and the ejector for the reversibly attachable tool comprises an ejector controller that is actuated in an actuation direction, the actuation direction being parallel to the ejection direction.

4. The kitchen appliance of claim 3 , wherein the actuation direction is offset from the removal direction.

5. 5. The kitchen appliance of claim 1, wherein the ejector for the reversibly attachable tool further comprises an ejector pin for each component part of the tool, preferably the ejector for the reversibly attachable tool comprises two ejector pins, optionally a first ejector pin having a different length than a second ejector pin.

6. 5. The kitchen appliance of claim 3, wherein the ejector for the reversibly attachable tool further comprises a guide structure parallel to the removal direction, preferably the guide structure comprises a plurality of ribs in a direction parallel to the removal direction, and even more preferably the guide structure is aligned in the actuation direction.

7. The kitchen appliance according to claim 6, wherein the guide structure further comprises a plurality of support posts, preferably in a direction perpendicular to the removal direction.

8. 8. The kitchen appliance according to any one of claims 1 to 7, wherein the ejector for the reversibly attachable tool comprises an ejector button and biasing means configured to bias the ejector button in an ejection direction, preferably towards an upward position and / or away from the surface of the attachment.

9. 8. A kitchen appliance as claimed in any one of claims 3, 4, 6 and 7, wherein the ejector for the reversibly attachable tool comprises an ejector button and biasing means configured to bias the ejector button in the removal direction, preferably towards a lower position, from which the ejector button is moved to an upper position when the reversibly attachable tool is attached to the attachment.

10. 10. The kitchen appliance of any one of claims 1 to 9, wherein the attachment comprises structure configured to engage structure of the kitchen appliance to reversibly secure the attachment to the kitchen appliance, and optionally the coupling means is configured to transfer drive from the kitchen appliance to the attachment.

11. 11. The kitchen appliance according to claim 10, wherein the coupling means comprises a bayonet mechanism and / or a snap-fit ​​mechanism, and / or the additional ejector comprises a release button, preferably a pair of release buttons arranged to be pressed together.

12. 12. The kitchen appliance of any one of claims 1 to 11, wherein the kitchen appliance is a handheld kitchen appliance, preferably a hand blender and / or a shaft or handle of a hand blender, optionally including a motor, and / or wherein the tool includes at least one beater or whisk.

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