The invention relates generally to tools used for carving the shell and/or skin of fruits and/or vegetables. Such tools can include, for example, an apparatus for carving pumpkins.
Known techniques for carving pumpkins include the use of manual tools, such as knives and small hand-saws. Pumpkin carving can often involve the carving of an intricate, complex design, which can require multiple steps and the use of multiple different tools. Using manual tools to carve such intricate patterns, even those tools specifically designed for pumpkin carving, can be a time-consuming and laborious process.
Other known carving techniques include the use of motorized tools, such as motorized drills and saws. Again, even with such motorized tools, which can relieve some of the problems associated with manual tools, multiple tools may still be necessary to achieve a desired carving design or pattern.
Thus, a need exists for a motorized carving tool that can perform a variety of different functions and increase the ease of carving into a pumpkin shell.
An apparatus includes a handle assembly having a drive motor and drive pin, and an adapter configured to be removably coupled to the handle assembly. The adapter includes a drive connector, a gear coupled to the drive connector, and a tool coupled to the gear. The drive connector is configured to couple to the drive pin. The tool has a plurality of substantially blunted cutting surfaces. The drive motor is configured to cause movement of the tool such that the tool can be used to cut through a pumpkin shell.
The invention is described with reference to the accompanying drawings. In the drawings, like reference numbers indicate identical or functionally similar elements.
FIG, 12 is a top view of the adapter shown in
A carving apparatus includes a handle assembly and at least one adapter that can be coupled to the handle assembly. The handle assembly includes a drive motor coupled to a drive pin. The adapter includes a drive connector configured to matingly couple to the drive pin. A gear assembly is coupled to the drive connector, and a tool is coupled to the gear assembly. Each adapter can have a different type of tool, but each tool includes at least one substantially blunted cutting-surface configured to cut through, or modify, the shell of a pumpkin or other like object. For example, the tool can be in the form of a router bit, a drill, a saw blade, or other suitable configuration. The adapter is configured to be easily coupled to and removed from the handle assembly.
A kit can be provided that includes a handle assembly and one or more adapters. A kit can include, for example several adapters each having a different type of tool. The variety of tools provided in a kit can allow a user to select a particular tool to perform a particular desired cutting function. The easy coupling and removability of the adapters to the handle assembly provide the user with a multi-functional tool that is also easily reconfigured for different uses.
In one embodiment, an apparatus includes a handle assembly having a drive motor and drive pin, and an adapter configured to be removably coupled to the handle assembly. The adapter includes a drive connector, a gear coupled to the drive connector, and a tool coupled to the gear. The drive connector is configured to couple to the drive pin. The tool has a plurality of substantially blunted cutting-surfaces. The drive motor is configured to cause movement of the tool such that the tool can be used to cut through a pumpkin shell at less than or equal to a power threshold of 20 horsepower.
The term “substantially blunted cutting-surfaces” as used herein describes a type of cutting surface that is capable of cutting through the shell or skin of a pumpkin or like object, while at the same time is sufficiently blunted such that the surfaces cannot cut through hard materials, such as wood or metal.
The handle assembly 30 includes a drive motor 35, and a drive pin 40 coupled to the drive motor 35. The drive pin 40 defines an axis A along which drive pin 40 is coupled to the drive motor 35. The drive motor 35 can be coupled to a power source (not shown in
The drive motor 35 can be coupled to the housing 31 using, for example, threaded fasteners, straps, snaps, or other suitable methods. The drive motor 35 is configured to drive the drive pin 40 at a power threshold that is less than the power threshold of a construction-grade power tool. For example, in one embodiment, the drive motor 35 is configured to rotate the drive pin 40 at a rotational speed of less than or equal to 13,800 rpm. The low rotational speed of the motor can minimize the vibration in the handle assembly, which can facilitate better control of the tool by a user and improved accuracy during cutting or carving.
As stated above, the drive motor 35 is configured to be coupled to a power source. The power source can be, for example, a disposable or rechargeable battery or battery pack, or an electrical adapter, such as an AC adapter. In another embodiment, the power source can be a solar cell pack.
The adapter 20 includes a drive connector 50, a gear assembly 60, and a tool 70. The adapter 20 can also include a housing 21 that substantially encloses the interior portions of the adapter 20. The gear assembly 60 can include one or more gears; the particular number of gears can depend on the particular adapter embodiment. The housing 21 is configured to removably couple the adapter 20 to the handle assembly 30. In one embodiment, the adapter 20 includes a flange (not shown in
The drive connector 50 defines an opening 51 that matingly receives the drive pin 40 of the handle assembly 30. For example, the drive pin 40 can have a hexagon cross-section that mates with a corresponding hexagon cross-section defined by the opening 51 of the drive connector 50. In another embodiment, a drive connector can define an opening having a substantially cylindrical cross-section that receives a drive pin that has a corresponding substantially cylindrical shape.
The drive connector 50 can also include a geared portion (not shown in
The tool 70 is coupled to the gear assembly 60. The tool 70 has a portion that is disposed inside the housing 21 and a portion that is disposed outside the housing 21 substantially along the axis A. In one embodiment, the tool 70 has a drill bit configuration. In another embodiment, the tool 70 has a saw blade configuration, and in another embodiment, the tool 70 has a router bit configuration. The tool 70 can also have a variety of other different shapes and sizes. Thus, other suitable tool configurations may be incorporated into the adapter 20, and the above examples are merely illustrative. The tool 70 can include one or more blunted cutting-surfaces (not shown in
The housing 131 includes one or more flanges 142, as shown in
The adapter 120, as shown in
The adapter 120 also includes a drive connector 150 disposed within the housing 121. The drive connector 150 defines an opening 151, as shown in
In other embodiments, the configuration of the flanges and the keyway can be reversed. For example, an adapter can include flanges and a handle assembly can include a keyway. As with the previous embodiment, either the adapter or the handle assembly can be rotated to couple the adapter to the handle assembly.
Once the adapter 120 has been coupled to the handle assembly 130, the apparatus 120 can be used to cut or carve a pumpkin, or other like object(s). As described above, when the drive motor 135 is actuated, the drive pin 140 actuates the drive connector 150. When the drive connector 150 is actuated, the geared portion 152 of the drive connector 150 actuates the gear assembly 160, which in turn actuates the tool 170. In this embodiment, the tool 170 actuates in a rotational motion about the axis A. The substantially blunted surfaces 172 of the tool 170 are disposed along the tip of the tool 170 such that when the tool 170 is actuated, the tool 170 can be used to cut, score or bore into a pumpkin shell or other like object.
The drive connector 350 defines an opening 351 matingly coupled to a drive pin (not shown in
In this embodiment, the tool 370 is configured as a saw blade having a substantially blunted end 373 and multiple substantially blunted cutting-surfaces 372 on one side. The tool 370 has a portion that is disposed inside the housing 321 and a portion that is disposed outside the housing 321 substantially along an axis A defined by a drive pin (not shown in
The gear assembly 360 of the adapter 320 has a different configuration than the gear assembly 160 of the adapter 120 and the adapter 220. The gear assembly 360 includes a gear 361 having a cylindrical portion 362 and a barrel portion 367, and an actuating arm 363 that is coupled to the tool 370. The actuating arm 363 includes a housing 369 that defines an elongate opening 355 and a passageway 364 within an interior of the housing 369. A pin 365 couples the cylindrical portion 362 of the gear 361 to the actuating arm 363. The pin 365 is also used to couple the gear assembly 360 to the housing 321. When assembled, the barrel 367 is movably disposed within the passageway 364 of the housing 369, and at least a portion of the cylindrical portion 362 is disposed within the elongate opening 355.
Similar to the operation of the adapter 120 and the adapter 220, when the drive connector 350 is actuated, the geared portion 352 of the drive connector 350 actuates the gear 361 of the gear assembly 360. When the gear 361 is actuated, the gear 361 causes movement of the actuating arm 363. Specifically, the barrel 367 eccentrically rotates about the pin 365 such that the rotation of the barrel 367 translates into longitudinal motion of the actuating arm 363 and tool 370 along a direction defined by the elongate opening 355. Thus, the tool 370 will move in a back-and-forth direction longitudinally in a direction substantially along the axis A.
Also, in this embodiment, a guide member 480 can be included. The guide member 480 is configured to help guide the tool 470 to a selected location on a pumpkin or other like object. The guide member 480 includes a slot 482 shown in
The components of an apparatus of the invention can be constructed with a variety of different materials. For example, components such as the housings and the guide member can be constructed with suitable plastic or metal materials. Other components, such as the tool, gear assembly, drive connector, etc. can similarly be constructed with plastics, metals or other suitable materials.
As discussed above, in another embodiment, a kit can be provided including multiple adapters 20 (120, 220, 320, 420) that can be selectively and removably coupled to a single handle assembly 30 (130, 330). Each of the adapters included in the kit can have a different configuration. For example, one adapter can have a tool having a saw blade configuration, while another adapter can have a tool with a drill or router configuration. In some embodiments, multiple adapters may have the same tool configuration, but with different sizes. A user can select from the kit the appropriate adapter to use for the particular cutting, boring, engraving, or scoring function. A kit provides a user a variety of cutting/carving tools from which to select, depending on the particular design to be carved.
For example, to drill a hole in a pumpkin the user may select an adaptor having a tool with a drill bit configuration. To make a cut on a portion of the pumpkin shell, the user may then select an adaptor having a tool with a saw configuration. Thus, the kit allows the user the flexibility to choose the tool best suited for the particular design to be carved in a pumpkin.
While the invention has been particularly shown and described with reference to embodiments thereof, it will be understood that various changes in form and details may be made therein. For example, each of the components of the apparatuses described herein can have a variety of different shapes and sizes other than those illustrated. Also, an adapter can include a variety of different types of tools. For example, a tool may have an end with geared teeth configured to bore a hole in a pumpkin when rotated, or a tool may have a substantially blunted end portion similar to the saw configuration, but with no blunted cutting surfaces along a side.