Not Applicable
Not Applicable
Not Applicable
Various types of drywall cutting devices are known in the prior art. However, what is needed is a handheld drywall cutter device that is usable in one hand of a user, quickly and easily, cuts both sides of drywall, is depth adjustable with respect to how far from an edge of drywall to cut, removably carries existing standardized utility cutting blades at an angle to the drywall, negates the simultaneous use of a ruler, negates the need for attaching or clamping existing tools, and offers ergonomic hand grip.
The present invention relates to drywall cutting devices, and more particularly, to a handheld drywall cutter device.
The general purpose of the present handheld drywall cutter device, described subsequently in greater detail, is to provide a handheld drywall cutter device which has many novel features that result in a handheld drywall cutter device which is not anticipated, rendered obvious, suggested, or even implied by prior art, either alone or in combination thereof.
To accomplish this, the present handheld drywall cutter device provides a singly handheld, self-guiding device for a worker to accurately cut a given edge of drywall, quickly, easily, on both sides, straight, and without wavering. The handheld drywall cutter device also solves an old problem in drywall cutting wherein a worker typically either tries to follow a marked line or use some sort of straight edge or ruler with a utility knife. The same worker, after typically cutting one side of the drywall, snaps a desired piece away from the other. Partially cut pieces seldom break along a straight plane, and with most drywall paper covering seldom breaks away correctly, often tearing. These problems are magnified with larger pieces of drywall. Such methods are also extremely time consuming, and one of a drywall workers primary concerns is time. Loss of productivity is money lost to workers, supervisors, and company. Additionally, should a worker have to use a large cutter tool, such as a floor based tool, such tools require extensive space and do not easily allow for quick cutting, aside from the fact that handling an entire sheet of drywall is quite cumbersome. Handling drywall repeatedly is time consuming and tiring. Hand cutting and conveying straight to application or cut at application site is therefore far more desirable.
The present handheld drywall cutter device solves above noted problems. The lightweight handheld drywall cutter device greatly improves upon currently used and proposed devices and methods. The device includes a housing having a top side spaced apart a bottom side, a first end spaced apart from a second end, and a first side spaced apart from a second side. An outward projection can be extended outwardly from each of the first side and the second side as an ergonomic feature. Each outward projection is disposed adjacent to the bottom side, beginning at the second end and continued uninterrupted adjacent to the first end and the top side. An interiorly rounded corner can be disposed in each outward projection as further ergonomic aid. Each rounded corner is disposed proximal each of the first end and the bottom side. A recess can be continuously disposed in each of the first side and the second side. Each recess is extended from an inside of each of the outward projections to the top side and the second end.
A receiving channel is continuously centrally disposed through the housing between the first side and the second side and continuously disposed from the first end to the second end. The receiving channel is open on the bottom side of the housing and closed on the top side of the housing. A first inward side is continuously disposed on the first side. A second inward side is continuously disposed on the second side. The first inward side and the second inward side are parallel to each other. A plurality of equidistantly spaced apart depth slots is continuously disposed within each of the first inward side and the second inward side. The depth slots are parallel with the top side, the first inward side being a mirror image of the second inward side. A depth plate is removably and selectively disposed within a pair of the depth slots in a position parallel to the top side. Depth plate depth slot insertion provides an important, convenient and rapid ease of adjustment in determining the depth of cuts from the edge of drywall, again cutting without wavering.
An angled blade slot is disposed within the bottom side of each of the first side and the second side. Each blade slot is configured to removably receive a utility blade in a position wherein each blade angularly protrudes into the receiving channel. A blade retainer is removably affixed below each blade slot. A pair of spaced apart fasteners is disposed through each of the blade retainers. Fasteners can include but are not limited to screws, thumbscrews, Dzus fasteners, and any appropriate fastening devices. Each fastener is selectively secured within the bottom side of each of the first side and the second side, wherein the fasteners are configured to selectively secure each blade retainer.
Various design features can be used to anchor a blade angularly within each inset. An angular blade attack toward drywall is superior, with a point of a utility blade trailing the attack. A blade slot can be disposed within each inset to aid in blade retention. Each blade slot is thereby in removable receipt of an existing utility blade. Such blades are common to utility knifes and other cutting tools. A blade retainer is selectively disposed atop each inset. The blade retainer can be pivotally positioned atop each inset. Each blade retainer can have a medially disposed squared internal end and even angular internal end for fitting against a matching interior end of featured insets. A rounded end blade retainer can be disposed opposite squared and angular interior ends. Each blade retainer can have a screw slot disposed proximal to the internal end with each screw slot opened toward the receiving channel.
A pair of spaced apart fasteners can be disposed through each of the blade retainers, with each fastener selectively retained within each of the insets. Fasteners can thereby selectively anchor each blade retainer when tightened and further allow pivot of each blade retainer when loosened. Removal of the fasteners of each blade retainer can also allow blade retainer removal.
The device is configured to be used in one hand by a user. The user sets the depth of the cut to be made by using the device without the use of the depth plate and also by inserting the depth plate within the chosen mirror image depth slot pair. By sliding the device along the chosen edge of existing drywall, the drywall is cut on each side, and through the drywall paper, if there. The user then easily snaps the drywall along the opposing cuts and has a clean break line. Drywall can thereby be cut in any chosen location, especially without requiring movement of the drywall to any tool base or stationary tool, as has in the past often been required.
Thus has been broadly outlined the more important features of the present handheld drywall cutter device so that the detailed description thereof that follows may be better understood and in order that the present contribution to the art may be better appreciated.
With reference now to the drawings, and in particular
Referring to
A receiving channel 27 is continuously centrally disposed between the first side 20 and the second side 22 and continuously disposed from the first end 16 to the second end 18. The receiving channel 27 is open on the bottom side 14 of the housing 11 and closed on the top side 12 of the housing 11. A first inward side 29 is continuously disposed from the first end 16 to the second end 18 on the first side 20. A second inward side 30 is continuously disposed from the first end 16 to the second end 18 on the second side 22. The first inward side 29 and the second inward side 30 are parallel to each other.
A plurality of equidistantly spaced apart depth slots 32 is continuously disposed within each of the first inward side 29 and the second inward side 30. The depth slots 32 are parallel with the top side 12, the first inward side 29 being a mirror image of the second inward side 30. A depth plate 34 is removably and selectively disposed within a pair of the depth slots 32 in a position parallel to the top side 12.
An inset 36 is disposed within each of the bottom side 14 of the first side 20 and the second side 22. An angled blade slot 38 is disposed within each inset 36. Each blade slot 38 is configured to removably receive a utility blade in a position wherein each blade angularly protrudes into the receiving channel 27. A blade retainer 40 is removably affixed in covering each blade slot 38, thereby selectively retaining each blade. A pair of spaced apart fasteners 44 is disposed through each of the blade retainers 40. Each respective fastener 44 is selectively secured within each inset 36, wherein the fasteners 44 are configured to selectively secure each blade retainer 40, and wherein the housing 11 is configured to be used singlehandedly. A rounded end 41 is disposed on each blade retainer 40 opposite each internal end 43.
Each blade retainer 40 has an internal end 43 disposed within each inset 36. Each internal end 43 is squared. Each inset 36 interior end 37 is squared. Each interior end 37 matches each internal end 43 wherein each internal end 43 is selectively positioned proximal to each inset 36 interior end 37 to further ensure selected blade retention as desired. A screw slot 42 is disposed proximal to the internal end 43 of each blade retainer 40. The drywall is cut by placing the device on a chosen drywall edge and sliding along that edge, wherein straight, unwavering cuts are executed on each side of the drywall.
Number | Name | Date | Kind |
---|---|---|---|
421717 | Hunt | Feb 1890 | A |
1031578 | Palis | Jul 1912 | A |
1705882 | Springer | Mar 1929 | A |
2067986 | Schmidt | Jan 1937 | A |
2068020 | Grounds | Jan 1937 | A |
2089774 | Wachstein | Aug 1937 | A |
2187634 | Soderlind | Jan 1940 | A |
2233497 | Teigen | Mar 1941 | A |
2298024 | Vallarelli | Oct 1942 | A |
2647313 | Ohlsson | Aug 1953 | A |
2649656 | Hedrick | Aug 1953 | A |
2706002 | Whittamore | Apr 1955 | A |
2902713 | Buelow | Sep 1959 | A |
3068569 | Campbell, Jr. | Dec 1962 | A |
3118228 | Adams | Jan 1964 | A |
D203268 | Swann, Jr. | Dec 1965 | S |
3383768 | Hamilton | May 1968 | A |
3596356 | O'Neal | Aug 1971 | A |
3611571 | Belling | Oct 1971 | A |
3639983 | Knipfing | Feb 1972 | A |
3644993 | Chupp | Feb 1972 | A |
4052790 | Carle | Oct 1977 | A |
4064626 | Meshulam | Dec 1977 | A |
4180908 | Beermann | Jan 1980 | A |
4495697 | Ruff | Jan 1985 | A |
4530154 | DiCarlo | Jul 1985 | A |
4667409 | D'Amato | May 1987 | A |
4711031 | Annello | Dec 1987 | A |
4777724 | Sirchia | Oct 1988 | A |
5007171 | Horning, Jr. | Apr 1991 | A |
5044081 | Nguyen | Sep 1991 | A |
5048188 | Wolff | Sep 1991 | A |
5127161 | Ikeda | Jul 1992 | A |
5653031 | Richter | Aug 1997 | A |
5666731 | Rungren | Sep 1997 | A |
5720104 | Decker | Feb 1998 | A |
5791048 | Bodnar | Aug 1998 | A |
D399402 | Unruh | Oct 1998 | S |
5848471 | Freeland | Dec 1998 | A |
5946808 | Martinez | Sep 1999 | A |
5992286 | Boole | Nov 1999 | A |
D419417 | Kane | Jan 2000 | S |
6029355 | Carlin | Feb 2000 | A |
D423318 | Lacy | Apr 2000 | S |
6298561 | Decker | Oct 2001 | B1 |
6430817 | Hoffman | Aug 2002 | B2 |
6625889 | Belsaas | Sep 2003 | B2 |
6745476 | Korba, Jr. | Jun 2004 | B2 |
6941664 | Engle | Sep 2005 | B1 |
7287329 | Cornacchio | Oct 2007 | B2 |
D558554 | Carbonaro | Jan 2008 | S |
D714124 | Fujino | Sep 2014 | S |
20020092169 | Kilduff | Jul 2002 | A1 |
20030097758 | Frazier | May 2003 | A1 |
20030200663 | Clanton | Oct 2003 | A1 |
20040227022 | Friedenbach | Nov 2004 | A1 |
20040231171 | Cornacchio | Nov 2004 | A1 |
20060156553 | Ensenat Alvarez | Jul 2006 | A1 |
20060272159 | Rubin | Dec 2006 | A1 |
20090056149 | Kentrotas | Mar 2009 | A1 |
20090094842 | Yoo | Apr 2009 | A1 |
20090271993 | Semprini | Nov 2009 | A1 |
20140373692 | Zeltner | Dec 2014 | A1 |
Number | Date | Country |
---|---|---|
2461331 | Sep 2005 | CA |
2525755 | May 2007 | CA |
1123524 | Sep 1956 | FR |
1507321 | Dec 1967 | FR |
2165230 | Aug 1973 | FR |