Winged screwdriver

Abstract

This disclosure describes the invention of a winged screwdriver. Limitations of the utility of screwdrivers described prior art are discussed, including physical clearance requirements. These limitations are eliminated by the use of a winged screwdriver, which allows its user to provide sufficient torque for tightening and loosening screws with vertical clearance of as little as 2 inches. This screwdriver is assembled from two component pieces: a wingnut, and a machined piece, known as the screw-bit.

Claims

1) An apparatus for tightening or loosening screws consisting of attached wings acting as lever arms.

2) A non-motorized, drive-beltless, and gearless apparatus for tightening or loosening screws comprising of less than 2.5 inches vertical from the screw head, when in use.

Description

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING

[0008] FIG. 1—Winged Screwdriver, as assembled, in profile view. Item 1 exhibits the screw-bit, and Item 2 depicts the wingnut.

[0009] FIG. 2—Winged Screwdriver, as assembled, in end view

DETAILED DESCRIPTION OF THE INVENTION

[0010] The invention consists a “winged screwdriver” consisting of two metal components, a wingnut and a machined screw-bit; screwed, welded or otherwise bonded together.

[0011] Production of the Screw-Bit

[0012] The screw-bit (FIG. 1, Item 1) is produced from a 1.5 inch length of round Stainless Steel Stock, ¼ inch diameter, polished finish.

[0013] One end of this Stock will remain at % inch diameter for a length of ½ inches. This wide end of Stock is die-cut to ¼″-28 UNF (US National Fine) series thread for a screwed length of ½ inches.

[0014] The remaining 1 inch length of this Stock is Lathe-cut to 3/16 inch diameter, polished finish

[0015] Reserve ⅜ inch at end of screw-bit to mill into a common bit profile, JIS being used in this example (Phillips #2 or flathead being two other examples) [0016] ⅛ inch at end is to be ground at 26.5 degree angle off-center as for JIS cut. [0017] ⅜ inch at end is to be gouged at 4 points, located at 90 degree angles, in a manner that the deepest width of each gouge is located ⅛ inch from end; and so that the width of gouge at the end and at ⅜ inch is symmetrical in appearance. [0018] The intent of these gouges is to provide uniform width of angled flanks at 1/32 inch.

[0019] Wipe away metal shavings from screw-bit.

Procurement of the Wingnut

[0020] The wingnut (FIG. 1, Item 2) is procured through commercial sources, specified as: Right-Hand Threaded Wingnut, specification ¼″-28 UNF (US National Fine) series thread, stainless steel material.

[0021] Assembly of the Winged Screwdriver

[0022] The wingnut is screwed onto the ¼ inch threaded portion of the screw-bit, with the distal end of the wings facing away from the end of screw-bit milled to JIS profile.

[0023] The wingnut will be spun until it the threaded portion protrudes at 0.20 inches from the wingnut boss.

[0024] The wingnut is then permanently affixed to the screw-bit by means such as welding, brazing, adhesive or epoxy. The completed winged screwdriver is demonstrated as (FIG. 1).