The present invention pertains generally to the field of hand-held power tools, and more particularly to accessories that improve the ease of use of such tools.
There are a wide variety of hand-held power tools that provide much utility. Exemplary among these are the variety of rotary tools including power drills, power screwdrivers, and the like. These rotary tools enable very rapid and secure fastening, boring, drilling, sanding, grinding, polishing, and many other diverse functions. For many projects, these diverse functions will be completed using a few different tools, requiring switching between a few of the various bits into and out of the chuck or other tool holder provided within the rotary tool.
To facilitate these tool changes, many manufacturers of these tools have provided tool-less chucks that enable a person with a quick twist of the chuck to release a presently held bit, allowing rapid change. This saves a person from needing to keep track of a chuck key or wrench. The demand for this convenience is great enough that, in spite of the increase in cost, most of these tools are provided with such chucks.
While the improved chucks provide much benefit, the bits themselves, which are generally quite small and easily misplaced, must still be removed from the chuck and stored until needed again. These bits are commonly provided in large organizers that may contain many similarly sized bits. Consequently, the tool operator must take the time to retrieve the bit holder and properly place the bit therein. In other words, while the improved chucks have reduced the burden on a tool operator by not having to handle and keep track of the chuck key, the operator must still keep track of all of the remaining bits that the operator wishes to use.
Since, as aforementioned, for most projects there are only a few bits that are required, rather than sorting these few bits from and back into a separate holder, most people will try to place the unused bit(s) on a work surface. Unfortunately, this can lead to accidental dropping of the bits such as by hitting the bits with another part, a cord, or other object. Particularly in the case of a drill bit this drop can damage the bit. Inevitably, there will be much wasted time trying to find and retrieve the accidentally dropped bits and bits that have been covered by sawdust or other tools, materials, or parts. In addition, a person may not always be standing next to a work bench when working on a project, and may instead find themselves in an awkward space such as on a ladder or under an automobile. In these cases, the person will not have easy access to a good bit storage receptacle. Consequently, there remains a need for a way to better handle the bits that a tool operator wishes to use frequently on a project.
Recognizing this need, a number of highly skilled artisans have developed different apparatus to assist with the handling of bits. Exemplary U.S. patents, the teachings which are incorporated herein by reference, include: U.S. Pat. No. 4,905,335 by Tervola, entitled “Magnetic rings, bracelets and necklaces”; U.S. Pat. No. 9,033,198 by Escherich, entitled “Magnetic bit-holder bracelet device”; and Des U.S. Pat. No. 371,945 by Geary et al, entitled “Drill bit holder”.
The Tervola patent describes in the preferred embodiment a ring that is fabricated from stainless steel that incorporates several different types of bits directly into the body of the ring. Other embodiments are disclosed that include the incorporation of a magnet. Nevertheless, this apparatus is not well suited to the retention of a plurality of bits or drivers. The magnetic coupling of ferromagnetic bits, which includes nearly all drill bits and drill bit screw drivers, will cause the bits to be attracted to each other and to other ferromagnetic objects. This means that the bits may be displaced easily or lost, through no fault of the wearer. Even when retained tightly to the ring, the bits can become entangled or tightly held together, making them much harder to select and use, simply by the magnetic forces drawing adjacent bits together. In addition, the use of a hard material such as stainless steel is very undesirable when working with power tools, hammers, and other work tools. This is because the ring is much stronger than adjacent flesh, and forces applied to any portion of the ring will be transmitted into the flesh. Since the ring with bits attached thereto will necessarily protrude farther than a person's associated body part, there is undesirable risk of harm or injury to the wearer.
The Escherich patent provides a bracelet that may be fabricated from a natural or synthetic rubber, has individual pockets to receive bits in, and further provides magnets at the base of the pockets to provide additional hold to retain the bits in. These pockets isolate the bits, reducing the chance of the bits being pulled into contact with each other. However, there still remains the possibility that the bits will stick through coupled magnetic field to an adjacent ferromagnetic object, and be removed from the pockets thereby. In addition, and in spite of the many benefits provided, the apparatus is relatively more complex to manufacture, requiring a plurality of sleeves in addition to the bracelet and magnets.
The Geary et al design patent illustrates a drill bit holder that has what appear to be a plurality of cylindrical through holes and an adjustable strap, presumably to form the enclosed annular geometry. However, the Geary et al construction uses a discontinuous junction between the adjustable strap and the bit holder region, which will create very undesirable stress within the material at this junction. Stress will lead to premature failure. In addition, the bit holder extends around a majority of the circumference, meaning this drill bit holder will not be useable as a thumb or finger holder, because the holder and bits would interfere with useful function. There is no disclosure of the materials used in the fabrication of the bit holder, nor any consideration for the provision of a magnetic tool holder.
Other artisans have developed different apparatus to assist with handling of sockets, nuts and bolts. Exemplary U.S. patents and published applications, the teachings which are incorporated herein by reference, include: U.S. Pat. No. 3,913,646 by Grayson, entitled “Fingertip nut and bolt holding tool”; 2004/0144216 by Risolio, entitled “Finger Wrench”; and 2010/0107827 by Miller, entitled “Fingertip Tool Holder”. Each of these patents and published applications are configured presumably to allow a person to manipulate tools when working in a small space, and so offer little more teaching of how to improve upon the teachings of Tervola, Escherich, and Geary et al described herein above.
There are also additional patents that illustrate holders for other diverse tools, such as writing implements and paint brushes. Exemplary U.S. patents and published applications, the teachings which are incorporated herein by reference, include: U.S. Pat. No. 1,286,610 by Harriman, entitled “Tool holder”; U.S. Pat. No. 6,249,277 by Varveris, entitled “Finger-mounted stylus for computer touch screen”; U.S. Pat. No. 6,540,421 by Porcelli, entitled “Leash for a writing implement”; U.S. Pat. No. 8,863,758 by Walenciak, entitled “Removable adaptive device for a clipper instrument”; 2006/0185057 by Terpinski, entitled “Magnet Finger Glove”; and 2007/0187446 by Marks, entitled “Implement Holder”; 2012/0170962 by Nwapa-Jourdan et al., entitled “Writing Instrument or Stylus Appendage for Attachment with a Finger”.
Additional patents and published applications of varying relevance, the relevant teachings and contents which are incorporated herein by reference, include: U.S. Pat. No. 1,094,888 by Ehrle, entitled “Pencil clip”; U.S. Pat. No. 1,879,489 by Ray, entitled “Writer's ring”; U.S. Pat. No. 2,491,860 by Ingraham, entitled “Magnetic nail holder”; U.S. Pat. No. 2,585,641 by Faso, entitled “Finger-supported tool for locating and turning small nuts, boltheads, etc.”; U.S. Pat. No. 3,075,498 by Udcoff, entitled “Finger holder for various articles”; U.S. Pat. No. 4,256,157 by Grayson, entitled “Nut, bolt, and screw holder”; U.S. Pat. No. 5,868,509 by Crutcher, entitled “Holder for a writing instrument”; U.S. Pat. No. 5,885,018 by Sato, entitled “Writing tool with a ring for mounting on a finger”; U.S. Pat. No. 6,328,494 by Moxon, entitled “Ergonomic tool holder or writing tool with means to be molded to fit the user's hand”; U.S. Pat. No. 6,481,114 by Kalajian, entitled “Finger ring shim and sizing tool”; U.S. Pat. No. 6,669,388 by Short, entitled “Finger-mounted marking device”; Des U.S. Pat. No. 604,140 by Whitehead, entitled “Tool holder”; Des U.S. Pat. No. 633,763 by Pengra, entitled “Wrench”; Des U.S. Pat. No. 678,415 by Gorbunov, entitled “Ergonomic implement holder”; 2001/0053306 by Schneider, entitled “Adjustable Finger Stylus”; 2004/0237261 by Rouse, entitled “Marking Tool”; 2006/0039739 by Komorowski, entitled “Stylus Holder”; 2006/0174448 by You, entitled “Pen-Holding Posture Corrective Apparatus”; 2008/0295255 by Whitehead, entitled “Tool Holder”; 2009/0279936 by Kuykendall, entitled “Function First Grip”; 2010/0288080 by Babusiaux, entitled “Bottle Opening Devise and Method for Making Same”; 2010/0289282 by Avery, Jr. et al., entitled “System for Attaching an Implement to a Person”; 2013/0180084 by Edson, entitled “Gripping Devise for Handles”; 2013/0322948 by Maddox, entitled “Writing Utensil Holding System”; 2014/0260814 by Bullard, entitled “Method and System for Holding Nails”; 2015/0255050 by Diaz Lopez, entitled “Holder for Switch of Instruments' Positions (Fast Pick)”; and 2015/0342328 by Seger, entitled “Ring Tool Holder”.
As may be apparent, in spite of the enormous advancements and substantial research and development that has been conducted, there still remains a need for an improved tool holder that is well adapted for use with diverse drill bits and other ferromagnetic and non-ferromagnetic tools.
In addition to the foregoing patents, Webster's New Universal Unabridged Dictionary, Second Edition copyright 1983, is incorporated herein by reference in entirety for the definitions of words and terms used herein.
In a first manifestation, the invention is, in combination, a rotary driver, at least one rotary driver bit, and a tool holder. The rotary driver comprises a rotary drive engine, a switch to selective energize the rotary drive engine, and a rotary tool chuck configured to selectively couple and decouple the at least one rotary driver bit to the rotary driver. The tool holder comprises an interminable annular band defining an annular axis that is adapted to receive a thumb or finger therein. At least one tool receptacle body is affixed with and radially protrudes from the annular band. An opening passes through the at least one tool receptacle body in an axis generally parallel to an axis defined by the annular band and is configured to removably receive and retain the at least one rotary driver bit.
In a second manifestation, the invention is a tool holder. An interminable annular band defines an annular axis and is adapted to receive a thumb or finger therein. At least one tool receptacle body is affixed with and radially protrudes from the annular band. An opening passes through the at least one tool receptacle body in an axis generally parallel to an axis defined by the annular band and is configured to removably receive and retain a rotary driver bit.
In a third manifestation, the invention is a method of applying a ferromagnetic fastener to a work piece. The steps include inserting a phalange supported tool holder having a magnet affixed thereto into a plurality of ferromagnetic fasteners; removing the tool holder from the plurality of ferromagnetic fasteners and thereby retaining the ferromagnetic fastener to the tool holder magnet; placing the phalange supported tool holder adjacent to the work piece, and thereby positioning the ferromagnetic fastener adjacent to the work piece in a proper position ready to be driven into place;
and driving the ferromagnetic fastener into the work piece.
Exemplary embodiments of the present invention solve inadequacies of the prior art by providing a generally annular tool holder that is fabricated from a relatively soft and highly elastic hypo-allergenic silicone material. A tool receptacle body protrudes radially from an annular band. The tool receptacle body has a plurality of at least partial bores that extend longitudinally along an axis parallel to the central axis of the annulus. The bores are configured to receive bits. One or more magnets may also be provided, extending the types of uses for the tool holder.
The present invention and the preferred and alternative embodiments have been developed with a number of objectives in mind. While not all of these objectives are found in every embodiment, these objectives nevertheless provide a sense of the general intent and the many possible benefits that are available from embodiments of the present invention.
A first object of the invention is to provide a comfortable and safe tool holder that may be worn upon a ring or thumb and that is configured to receive and selectively retain a plurality of drill and driver bits. A second object of the invention is to accommodate diverse diameters of bits and diverse finger sizes with no change in the tool holder. Another object of the present invention is to fabricate the tool holder as a single unitary component. A further object of the invention is to provide a tool holder that is safe to use in the immediate vicinity of both power and manual tools, even in the event of an unexpected impact or tool malfunction. Yet another object of the present invention is to provide a tool holder that has a relatively more rigid body in the vicinity of the bits and drivers, and a relatively softer and more resilient body distal thereto. An additional object of the invention is to provide a face plate well adapted to receive and display custom engraving and branding. An even further object of the invention is to provide ventilation within the annulus interior, to facilitate comfort when wearing the ring for extended periods of time.
The foregoing and other objects, advantages, and novel features of the present invention can be understood and appreciated by reference to the following detailed description of the invention, taken in conjunction with the accompanying drawings, in which:
Manifested in the preferred embodiment, the present invention provides a tool holder particularly well adapted to allow a person to use a tool comfortably and unobstructed, while holding additional tools, bits, and the like conveniently around a finger or thumb. In a first preferred embodiment of the invention illustrated in
The particular appendage that annular band 12 encircles is not essential to the invention. However, in the case of rotary tools such as drills discussed herein above, a thumb ring allows easy access to the individual bits without any interference in the handling of a drill 1 or other obstruction of the work or view thereof.
Supported by and unitary with annular band 12 is a tool receptacle body 13 protruding radially from a minority of annular band 12. Tool receptacle body 13 contains at least one tool receptacle 14, which is configured to receive and hold at least one tool bit such as bit 20 as illustrated in
In alternative embodiments, the interior circumference of annular band 12 may be provided with facets, grooves, or other geometries that provide limited ventilation, making the ring more comfortable to wear for extended periods of time. For exemplary purposes only, and not limiting the invention solely thereto, annular band 12 may comprise a six facet interior if so desired, resembling the six facets of tool receptacles 114-118 of
Face plate 11 radially terminates tool receptacle body 13 distal to band 12, and provides a relatively large and only gently curved surface that will tend to be visible when in use. The visibility is apparent from the illustration of
A tool holder designed in accord with the teachings of the present invention may be manufactured from a variety of materials. However, the particular selection of material can have great impact upon the utility of the resulting tool holder. Preferred embodiment tool holder 10 is fabricated from molded silicone rubber, which provides substantial elasticity to receive a variety of thumb or finger sizes, and a variety of bit diameters. In a most preferred embodiment, tool holder 10 is produced from an approximately 30 durometer hypo-allergenic silicone, most preferably medical grade. This helps to ensure that the present invention is compatible with and not irritating to most persons. The elasticity also ensures that the tool will cushion the user rather than harm them in the event of an impact, and will generally be substantially safer than a hard ring when used in the immediate vicinity of power tools. In addition, silicone offers good durability, and enables a single molding operation to produce the entire tool holder 10.
In preferred embodiment tool holder 10, annular band 12 is most preferably interminable. Interminable for the purposes of the present disclosure will be understood to mean that annular band 12 is unending and incapable of being terminated. This is in distinct contrast to much of the prior art, where various buckles split rings, or other fasteners, and open, C-shaped rings are used. The use of silicone or other highly elastic rubber ensures substantial elasticity sufficient to accommodate a very wide range of finger and thumb sizes, without requiring any adjustable straps or fasteners. The composition will also accommodate many different tool diameters and geometries. These objectives are both accomplished without requiring any change to the tool holder or to a mold used to fabricate the tool holder.
As best apparent from
In addition to screwdriver bits such as slot, phillips, and star bits, other devices may also be retained within one or more of tool receptacles 14-18. For exemplary purposes, and not solely limiting the present invention thereto, this may include small pencils or other marking instruments, small punches and awls, cordless ear buds, industrial hearing protectors, and any other diverse tool or instrument for which the operator wishes quick and convenient access.
Various embodiments of apparatus designed in accord with the present invention have been illustrated in the various figures. The embodiments are distinguished by the hundreds digit, and various components within each embodiment designated by the ones and tens digits. However, many of the components are alike or similar between embodiments, so numbering of the ones and tens digits have been maintained wherever possible, such that identical, like or similar functions may more readily be identified between the embodiments. If not otherwise expressed, those skilled in the art will readily recognize the similarities and understand that in many cases like numbered ones and tens digit components may be substituted from one embodiment to another in accord with the present teachings, except where such substitution would otherwise destroy operation of the embodiment. Consequently, those skilled in the art will readily determine the function and operation of many of the components illustrated herein without unnecessary additional description.
Magnet 217 is preferably positioned to work cooperatively with a person's fingers to pick up fasteners, for exemplary purposes such as screws and nails, and allow a person to hold them in proper position ready to be driven into place, potentially entirely by magnetic attraction. This is illustrated in
Each of the illustrated embodiments shows the individual tool receptacles 14-18, 114-118, 214-218 as being parallel to the axis of the associated annular band 12, 112, 212. This is preferred, since the tool may be readily inserted therein, and readily viewed such as illustrated by
While the foregoing details what is felt to be the preferred embodiment of the invention, no material limitations to the scope of the claimed invention are intended. Further, features and design alternatives that would be obvious to one of ordinary skill in the art are considered to be incorporated herein. The scope of the invention is set forth and particularly described in the claims herein below.
The present application claims the benefit of U.S. provisional patent application 62/378,672 filed Aug. 23, 2016 of like title and inventorship, the teachings and entire contents which are incorporated herein by reference.
Number | Date | Country | |
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62378672 | Aug 2016 | US |