US2263508A - Extension handle assembly - Google Patents

Description

Nov. 18, 1941. A. LEE

' EXTENSION HANDLE ASSEMBLY Filed June 20, 1940 Patented Nov. 18, 1941 UNITED STATES PATENT OFFICE EXTENSION HANDLE ASSEMBLY Albert Lee, Scranton, Pa. Application nine 20, 1940, s rial 541,554

'3 Claims. (o1.-s1 -17 7:)

This invention relates to an improved extension handle assembly for socket wrenches and especially to an extension handle for use with socket wrenches for removing wheel retaining nuts on large trucks and buses where it is necessary to tighten the nuts to such an extent that it is practically impossible to remove them with a conventional socket wrench handle;

More particularly, it is an aimof this inven: tion to provide an extension handle havingan open end to receive a socket wrench handle and adapted to afford additional leverage for more readily turning the socket wrench. 7

Still another aim of the invention is to pro vide an extension handle formed of detachable sections, including a large and small section having connecting means so designed that the smaller section togetherwith the socket wrenc-h and its handle may be nested and contained within the larger section to enable the socket wrench andextension handle to be compactly stored and retained as a unit so that all of the ,parts will be available for use when required.

Other objects and advantages of the invention will hereinafter become more fully apparent from the following description of thedrawing, which illustrates a preferred embodiment thereof, and wherein:

Figure l is a side elevational view showing the extension handle assembled for use and applied to the handle of a conventional socket wrench,

Figure 2 is an enlarged longitudinal central sectional view showing the sections of the extension handle nested and containing the socket wrench and socket wrench handle, and

Figure 3 is an enlarged fragmentary longitudinal central sectional view, partly in elevation of the parts as seen in Figure 1.

Referring more particularly to the drawing, wherein like reference characters designate like or corresponding parts throughout the different views, Ii) designates generally a conventional socket wrench having a shank portion ll provided with enlarged ends l2 and I3 of different diameters and containing polygonal shaped recesses l4 and 15, respectively, of different sizes for engaging nuts and bolt heads, not shown, of two sizes. The enlarged ends l2 and 13 are each provided with a corresponding transverse opening I6 to receive a rod I1, forming the handle of the socket wrench l0, and which is provided with an enlarged fiat end l8. The opposite end of the rod I! may be inserted in either 'of the openings l and the rod moved therethrough until the end l8 engages an end of one of the openings I6. The aforementioned parts forming the socket wrench l0 :are shown and described for the purpose of illustrating the application of the extension handle L9 comprising this invention.

The extension handle .I 9 is of tubular construction and includes tubular sections 2!) and .2l, the latter of which is substantially smaller in .diame.- ter and shorter in length than vthe fo i l er, for a purpose which will hereinafter become apparent. The sections -20 and, 21 are provided with the .ext rnally't ea ed end and 2. espe ivel A coupling member 24 is provided with ,a here which extends longitudinally therethrough and which is provided with internally threaded ends 25 and 26 .of different diameters, as best seen in Figure 3, toreceive -,the ends 22 and 22,3, respectively, to connect the sections 20 and 2| .in end to end'relationship, as illustrated in Figures 1 and 3. The Opposite end of the ltubular section 20 is provided with an enlarged socket 21 hay.- ing aninternally threaded free end .28 forreceivm a threaded plug 2.9 which closes .said end.

It will thus be ,seen that the parts when as.-

sembled, as illustrated in Figures 1 and ,3"w,il l

,form an extension handle which may be readily applied to the handle II when said handle ,1] is connected to one of the openings 1.6, in ,the manner as s en inFigures 1 ,and 3, byp sin the tree end of the tubular section 2| over the eX- tended end of the handle or rod vI 'I to Iorm an extension thereof to enable the wrench 10 to be more readily turned for loosening a nut or bolt.

All of the parts as seen in Figure 1 may be readily stored in the tubular section 20, in the manner as illustrated in Figure 2. This is accomplished by detaching the rod or handle I! from the member I I. The sections 2| and 20 are then detached from the coupling member 24 after which the section 2| is inserted through the enlarged end of the coupling member 24 and its threaded end 23, in this position, connected to the threaded portion 26. The smaller end of rod I7 is then inserted into the free end of the tubular section 2|. The flattened end 18 being wider than the bore of section 2| will prevent the rod I! from passing therethrough and thereby prevent its removal through the opposite end of section 2|. The tubular section 2| is then inserted into the end of the tubular section 20 which is provided with the threads 22. The threaded portion 25 of the coupling member 24 is then connected to the threaded end 22 to thereby mount the tubular section 2| and the rod I! in one end of the tubular section 20. The plug 29 is then removed and the headed end l3 of the shank H is then inserted into the socket end 21 of the tube 20. End I3 is of a diameter less than that of the tube 20 while the end I2 is of greater diameter than tube 2% and of a smaller diameter than the socket 21 so that it will fit therein with the end l3 abutting against the flattened end l8 of rod H. The plug 29 is then replaced in the socket 21 to combine with the coupling member 24 to retain the remaining parts within the tubular section 20. By removing the plug 29 and the coupling member 24 the remaining parts disclosed may be readily removed from the tubular section 20 after which rod H may beremoved from tubular section 2! and the section "2 inn connected from coupling member 24.

Various modifications and changes are contemplated and may obviously'be resorted to as only a preferred embodiment of the invention has been illustrated and described.

I'claim as my invention:

'1. An extension handle assembly for socket wrenches comprising a handle including two pipe sections, one of said pipe sections having an externally threaded end and an enlarged internally threaded end, the other pipe section being of a substantially smaller diameter, than the first mentioned pipe section and having an externally threaded end, a coupling member having threaded ends of different diameters for engaging the I externally threaded ends of said pipe sections'for connecting them in end to end or in a nested relationship, and the open free end of thesmaller pipe section being adapted to engage a rod,'forming the handle portion of a socket wrench; when the pipe sections are connected in end to end relationship, to form an extension for said handle portion, said rod being of less diameter than said second pipe section so as to nest therein and having a flattened end of a width greater than the diameter of the bore of the second pipe section to prevent the rod from being removed from the nested sectionsv through the smaller ipipesec- 'tion,,and a threaded member forengaging the internally threaded end "of the first mentioned pipe section to close said end against removal of the rod. p V

2. A socket wrench comprising a' polygonal shaped socket member for engaging nuts and bolt heads, provided with a transverse opening, a rod, insertable'through said opening, provided with an enlarged end for engaging a portion of the socket member at an end of said opening, the opposite end of said rod forming a handle for the socket member, an extension handle including tubular sections of difierent diameters, means for connecting said sections in end to end relationship or in nested relationship, one Within the other, said rod being of a diameter less than the bore of the inner tubular section and its enlarged head being of a diameter greater than the bore of th inner tubular section and smaller than the bore of the outer tubular section whereby the rod can be nested in said inner tubular section with its enlarged head disposed at the inner end thereof to prevent said rod from moving outwardly through the inner section, said .outer tubular section being of a length approximately equal to the combined lengths of the inner'tubular section and the socket member, said socket member being nested in the opposite end of the outertubular section, and a closure member for the last mentioned end of the outer tubular section for retaining said socket member and rod therein. 7 i i v 3. An extension-handle assembly including a tubular handle formed of tubular sections of different diameters, each of said sections having an externally threaded end, a coupling member having a bore extending therethrough provided with ends of different diameters, said ends each being internally threaded for engaging the externally threaded ends ofsaid tubular sections for detachably connecting them in end to end -relationshiprelatively to each other or in nested relationship one within the other, the free end of the smaller tubular secticn-beingadapted toengage'thefree end of a detachable handle'of a socket wrench to' form an extension for 1 said handle'when the sections are extended, and the larger tubular section being of suiiicient length to permit the smaller tubular section, said handle and socket wrench to be positioned in; the larger tubular section for storage, when the sections are nested, said handle being adapted to be disposed in the inner end of the smaller section and being provided with an enlarged end to'prevent passage of the handle outwardly therethrough, and means for closing the opposite end ofthe'larger tubular section;

ALBERT'L'EE;

Images