US2651229A

US2651229A - Combined socket wrench and nut ejector

Info

Publication number: US2651229A
Application number: US176827A
Authority: US
Inventors: Lenz Bernhart Joseph
Original assignee: ORVILLE W SHELTON
Current assignee: ORVILLE W SHELTON
Priority date: 1950-07-31
Filing date: 1950-07-31
Publication date: 1953-09-08
Anticipated expiration: 1970-09-08

Description

Patented Sept. 8, i953 OFFICE 1 commsn sooner vwnuucn Ash NUT EJECTOR Bernhart .loseph Lenz, one-half to. Orville MercedpCaliL, assignor of W. Shelton,

Carmel, Calif.

Application July 31, 1950, Serial No. 176,827

' 3 Claims. (01. 81-1241) This invention is directed to, and it is an'object to provide, an improved socket wrench;

An important object of the invention is to provide a socket wrench which is operative, after removal of a nut from a bolt and at which time sticks in the socket, to eject latter for ready manual rethe nut frequently the nut from the covery.

An additional object of the invention is to construct the socket wrench in a manner such that the torque applied tothe wrench to loosen a .nut cannot work to the detriment of or damage the axially slidable parts, which the device includes, to cause ejection of the-nut from the socket, as aforesaid. 1 I

These objects are accomplished by means of such structure and relative arrangement of parts as will fully appear by-a perusalof the following specification and claims.

In the drawings:

Fig. 1 is a side elevation of the socket wrench.

Fig. 2 is a sectional elevation of the same in normal position.

Fig. 3 is a similar view, in nut ejecting position.

Fig. 4 is a front end view of the wrench.

Fig. 5 is a rear end view of the wrench.

Referring now more particularly to the characters of reference on the drawings, the improved socket wrench comprises a body I in the form of a tubular, elongated sleeve; such body being formed atits forward end portion with a socket 2 and at its rear end portion with a bore 3. The socket 2 and bore 3 are non-circular in cross section and preferably have a hexagonal configuration; there being an annular internal stop 4 between said socket 2 and bore 3.

A non-circular, push-out head or plunger 5, likewise preferably hexagonal in cross section, engages in matching, axially slidable relation in the socket 2. The inner end of the plunger 5 normally engages in abutting relation against the stop 4, and at such time the outer end of said plunger is disposed at considerable distance short of or inwardly from the outer end of said socket 2.

The plunger 5 is formed with a recess 6 which opens to the outer end of said plunger for the reception of the free end of a bolt I when a nut 8 on said bolt is engaged in the socket 2.

A reduced-diameter stem 9 is formed integral with, and projects axially in a rearward direction from, the plunger 5 and through the annular internal stop 4 and bore 3.

At its rear end portion the stem 9 projects but shows the wrench the stop 4, as

into the bore I 0 of a connector shank'II; these parts being secured together by a cross pin I2.

section, preferably hexagonal, and runs matching fit in the non-circular bore 3.

Diametrally alined holes I3 in the tubular sleeve 1 permit of placement or removal of the cross pin I2, but said holes I3 are in a position normally out of alinement with said cross pm; i. e. ahead of the latter.

A compression spring I4 surrounds the stem 9 between the annular internal stop 4 and the inner end of-the connector shank II; such spring thus normally urging the plunger 5, stem 9, and shank I I to their'rearmost point, andat which time the plunger 5 occupies a retracted position against aforesaid. At the same time the connector shank -I l projects some the rear end of the tubular sleeve I.

When the above described socket wrench is in II is engaged with a socket wrench with a handle or speed wrench; the engagement being either on the non-circular outside of said shank or into the bore I 0, depending on the type of tool handle. The bore I 0 is non-circular in cross section, and preferably square.

With the socket wrench thus handle-mounted for use a nut 8 is engaged in the socket 2, whereupon the device is rotated in a direction to unthread the nut 8 from the bolt 1. When such unthreading occurs the nut 8 would quite frequently stick in the socket 2, making its removal difficult and inconvenient were it not for the nut by relative forward thrusting of the plunger 5 the tubular sleeve I.

As the tubular sleeve I is pulled rearwardly the plunger 5 thrusts relatively forward, pushing the nut out of socket 2 for ready manual recovery.

By virtue of the fact that the plunger 5 and connector shank II are engaged in matching relation in the non-circular socket 2 and noncircular bore 3, respectively, the torque applied to the connector from strain and possible breakage.

The device, while simple in its structure and capable of facile is nevertheless sturdy, practical, and convenient being a most useful mechanic's tool.

From the foregoing description it will be readidistance' out "of 1y seen that there has been produced such a device as substantially fulfills the objects of the invention, as set forth herein.

While this specification sets forth in detail the present and preferred construction of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claims.

Having thus described the invention, the following is claimed as new and useful, and upon which Letters Patent are desired:

1. A socket wrench comprising a tubular sleeve having a non-circular socket open to the front end thereof, a plunger slidable in matching relation in the socket, the forward end of the plunger normally being short of the correspond ing end of the socket, a connector at the rear of the sleeve for a socket wrench handle, :said connector being slidable but non-turnable in the sleeve and projecting from the rear end thereof, a stem of reduced size extending between adjacent; ends of the plunger and connector, a stop in the sleeve against which the rear end of the plunger normally seats, and a helical compression spring about the stem between the stop and connector yieldably maintaining the plunger against said stop.

- 2. A socket wrench comprising a tubular sleeve having a non-circular socket open to the front end thereof, and a non-circular bore open to the rear end, there being an annular stop in the sleeve between the socket and bore, a plunger slidable in matching non-turnable relation in the socket, the rear end of the plunger normally seating against the stop and the forward end of said plunger then being short of the corresponding end of the socket, a wrench handle connector "stopto adjacent the rear end of adjacent one of slidable in the bore in matching non-turnable relation and projecting out of the rear end of the latter, a stem extending between and fixed to the plunger and connector for axial motion of said parts as a unit, and a helical compression spring between the stop and the connector.

3. A socket wrench comprising a tubular sleeve having a non-circular socket open to the front end thereof, an annular stop in the sleeve at the inner end of the socket, a plunger shorter than the socket and non-turnably slidable therein, a stem projecting from the plunger through the the sleeve, a wrench-engaging connector-shank slidable in the rear portion of the sleeve and engaged over the the stem, a cross pin through the shank and stem, a spring about the stem between the shank and stop holding the plunger retractedin the sleeve and a portion of the shank. projecting from the sleeve, but the pin being then concealed by the sleeve; the latter having a transverse bore therethrough as large as the pin to aline with said pin when the shank is projected a predetermined distance into the sleeve against the resistance of the spring.

BERNI-LART JOSEPH LENZ,

References Cited in the file of this patent UNITED STATES PATENTS