Patent Application
20210354280
The present disclosure relates to power tools, and in particular rotary power tools.
Rotary tools transmit a rotational force to a tool accessory, which ultimately performs work on an item. Rotary tools can be used for engraving, polishing, sanding, cutting, etc.
The present disclosure provides, in one aspect, a rotary tool assembly including a rotary tool having a body with a working end and a rear end, a motor disposed within the body, and a drive shaft rotatably driven by the motor. A base includes a battery receptacle configured to receive a battery pack. A power cord extends between the base and the rotary tool to transfer electric power from the base to the rotary tool to selectively power the motor.
The present disclosure provides, in another aspect, a rotary tool assembly including a rotary tool including a body having a working end and a rear end, a motor disposed within the body, and a drive shaft rotatably driven by the motor. A base includes a battery receptacle configured to receive a battery pack, and a storage receptacle for storing tool accessories compatible with the working end of the rotary tool. A power cord extends between the base and the rotary tool to transfer electric power from the base to the rotary tool to selectively power the motor.
The present disclosure provides, in another aspect, a rotary tool assembly including a rotary tool including a body having a working end and a rear end, a motor disposed within the body, and a drive shaft rotatably driven by the motor. A base includes a battery receptacle and a storage receptacle for storing tool accessories compatible with the working end of the rotary tool. A battery pack is receivable within the battery receptacle, where the battery pack forms a foot of the base to support the base above a surface. A power cord extends between the base and the rotary tool to transfer electric power from the battery pack to the rotary tool to selectively power the motor. A stand extends from the base and configured to support the rotary tool above the surface.
Other aspects of the invention will become apparent by consideration of the detailed description and accompanying drawings.
Before any embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting.
The base 18 includes a generally rectangular housing 26 having a top end 82, a bottom end 86, a front end 90, a rear end 94, and two opposing sides 98. The base 18 includes a battery receptacle 30 at the bottom end 86 of the housing 26 for receiving a battery pack 34 to power the rotary tool 14. Specifically, when received within the battery receptacle 30, the battery pack 34 powers the rotary tool 14 via the power cord 22. The battery pack 34 can be removed from the housing 26 by pressing a release button 38 to disengage the battery pack 34.
In the illustrated embodiment, the battery pack 34 is inserted into the housing 26 from an opening on the bottom end 86 of the housing 26. When received within the battery receptacle 30, the battery pack 34 forms the foot of the base 18 to support the base 18 on a surface. Referring to
With continued reference to
In the illustrated embodiment, the storage receptacle 58 is positioned within a rear half of the housing 26 adjacent the first portion 50 of the battery receptacle 30. The storage receptacle 58 is also positioned above the second portion 54 of the battery receptacle 30.
The storage receptacle 58 includes an opening 66 on a top end 82 of the housing 26 to provide access to items being stored within the storage receptacle 58. However, in other embodiments, the storage receptacle 58 may include an opening arranged on a different portion of the housing 26, such as on a side 98 or the rear end 94 of the housing 26. Additionally, in the illustrated embodiment, the base 18 includes a cover 74 for closing the opening 66 to the storage receptacle 58. The cover 74 is movable between an open position, providing access to the storage receptacle 58, and a closed position, preventing access to the storage receptacle 58. In the illustrated embodiment, the cover 74 is pivotably coupled to the housing 26. However, in other embodiments, the cover 74 may be coupled to the housing 26 in a different manner, or may be entirely removable from the housing 26.
The base 18 further includes a series of tool accessory holders 70, which allow a user to temporarily hold a tool accessory 62 on the base 18 while working on a project. For example, a user may be working with multiple tool accessories 62 when executing a project or may need to alternate between various tool accessories 62 during the course of a project. Oftentimes a user may simply hold the various tool accessories 62 in their hand, which impedes the use of their hands. Similarly, a user may place the tool accessory 62 on the ground or other surface, which creates a risk that the tool accessory 62 may fall on the ground or roll away. Accordingly, the tool accessory holders 70 enable a user to quickly switch between different tool accessories 62 without having to hold the tool accessory 62 or risk dropping it.
In the illustrated embodiment, the base 18 includes a variety of different tool accessory holders 70. First, there is a tool accessory holder 70 in the form of a trough 70a formed on the cover 74 of the storage receptacle 58. The trough 70a is a depression formed along the top of the cover 74 to receive tool accessories 62 of different shapes and sizes. Second, there are a plurality of tool accessory holders 70 in the form of through-holes 70b in the cover 74 of the storage receptacle 58. The through-holes 70a can be used to hold any tool accessory 62 with a shaft that can be received within the through-holes 70a. Third, there is a tool accessory holder 70 in the form of a slit 70c formed on the top end 82 of the base 18. The slit 70c can receive any tool accessory 62 with a flattened shaft that can fit within the slit. As will be understood by a person of ordinary skill in the art, the placement, size, and shape of the tool accessory holders 70 can vary in order to accommodate different tool accessories 62.
The base 18 further includes a stand 78 configured to support the rotary tool 14 when the rotary tool 14 is not in use. The illustrated embodiment, the stand 78 extends from the front end 90 of the base 18 and includes a circular receptacle 102 for receiving the rotary tool 14. Specifically, the stand 78 includes two arms 106 extending from the front end 90 of the base 18 between which the circular receptacle 102 is defined, with which the rotary tool 14 is engageable to support the rotary tool 14 above a surface. The stand 78 includes a space 110 defined between the arms 106 and oriented transverse to the receptacle 102. In other words, the arms 106 do not touch one another, but rather, are separated to create a space 110 that allows the cord 22 to fit between the arms 106 when inserting the rotary tool 14 into the receptacle 102.
In other embodiments, the stand 78 may be positioned on the rear end 94 of the base 18, one of the sides 98, or the top end 82 of the base 18. Likewise, the stand 78 may have different sizes and shapes in order to accommodate rotary tools 14 of different sizes and shapes.
The base 18 is connected to the rotary tool 14 by the power cord 22. In the illustrated embodiment, the power cord 22 is coupled to the front end 90 of the base 18 and a rear end 114 of the rotary tool 14. The power cord 22 is flexible to allow the rotary tool 14 to move relative to the base 18. The power cord 22 may have different lengths to accommodate different types of rotary tools 14. As a non-limiting example, smaller rotary tools 14, such as engraving tools, may only need to reach a smaller area around the base 18 and thus, the power cord 22 may have a shorter length. Otherwise, larger rotary tools 14, such as die grinders or sanders, may include a longer power cord 22 to accommodate a larger working space for the rotary tool 14.
Referring to
The stand 78 on the base 18 is sized and shaped to accommodate the size and shape of the rotary tool 14 and the power cord 22. As previously mentioned, the stand 78 includes a space 110 that is sufficiently wide to permit the power cord 22 to pass therethrough when inserting the rotary tool 14 into the receptacle 102. The inner diameter of the circular receptacle 102 is sized to be less than the largest outer diameter of the body 118 of the rotary tool 14 (e.g., proximate switch 150) in order to hold the rotary tool 14 above a surface without it sliding entirely through the receptacle 102. The inner diameter of the circular receptacle 102 is also greater than the smallest outer diameter of the body 118 (proximate the rear end 114) in order to permit the rotary tool to be lowered through 102 until reaching a mid-portion of the body where the outer diameter of the body 118 of the rotary tool 14 is nominally equal to the inner diameter of the circular receptacle 102.
Referring to
As shown in
The rotary tool 14 further includes a speed control 154 for adjusting the operational speed of the motor 142 and thereby, the rotational speed of the shaft 146 and the tool accessory 62. In the illustrated embodiment, the speed control 154 is a rotatable dial near the rear end 114 of the rotary tool 14. However, in other embodiments, the speed control 154 may include a different type of actuator, such as a slidable actuator or a toggle button. Likewise, the speed control 154 may be positioned elsewhere on the rotary tool 14 or, in some cases, may be positioned on the base 18.
Although the invention has been described in detail with reference to certain preferred embodiments, variations and modifications exist within the scope and spirit of one or more independent aspects of the invention as described.
