US3745860A

US3745860A - Handy man{40 s wrench

Info

Publication number: US3745860A
Application number: US00179828A
Authority: US
Inventors: R Bennett
Original assignee: Individual
Current assignee: Individual
Priority date: 1971-09-13
Filing date: 1971-09-13
Publication date: 1973-07-17
Anticipated expiration: 1990-07-17

Abstract

A handy man''s wrench comprising noncircular wrench inserts with socket openings stored in the wrench handle under a pivoting cover and interchangeable to matingly shaped end positions thereon. The desired size socket opening in a wrench insert is placed in the end position of the wrench handle for engaging and turning a standard hexagonal nut with levered force applied to and transmitted through the handle.

Description

United States Patent 1 1 Bennett July 17, 1973 HANDY MAN'S WRENCH [76] Inventor: Robert A. Bennett, 38 Falmouth Z' 'f 'f P Drive, Shelt n C0 06 sslstant xammerames mu o m 484 Atlorney- F. Eugene Davis, IV and James R. [22] Filed: Sept. 13, 1971 Frederick [21] Appl. No.: 179,828

[57] ABSTRACT [52] U.S. Cl. 81/121'R, 81/177 N s 1 Int. Cl 1325b 13/06 A handy man s wrench OmPmmg mmrcular wrench [58] Field 01 Search 81/121 R 121 A inserts with Penings the wrench 81/121 B 1251 119 177 R 177 E 177 dle under a pivoting cover and interchangeable to mat- 177 N G R180 B R ingly shaped end positions thereon. The desired size 6 socket opening in a wrench insert is placed in the end position of the wrench handle for engaging and turning [56] References Cited a standard hexagonal nut with levered force applied to UNITED STATES PATENTS and transmitted through the handle.

657,512 9/l900 Carter et al 8l/63.l 10 Claims, 8 Drawing Figures PAIENIEU I 7 3. M5 860 sum 1 or 2 INVENTOR ROBERT A. BENNETT ATTORNEYS SUMMARY OF THE INVENTION This invention relates to a handy mans wrench, and more particularly it relates to a handy mans wrench comprising a plurality of various sized socket openings in noncircular socket inserts stored in the wrench handle and movable to the end positions thereon for engaging and turning a standard hexagonal nut.

It is impractical for the handy man to purchase a complete set of wrenches for an occasional odd job. A quality set of forged steel wrenches in a variety of common sizes represents a relatively large financial investment. An inexpensive set of wrenches is often also cheaply constructed, having a poor fitting relation with the nut and slipping when even moderate force is applied.

In addition, a set of several wrenches is messy to store. They often are scattered throughout one or more drawers, and are easily mislaid. It is also inconvenient to carry a set of several wrenches in ones pocket.

A second type of prior art wrenches are the so-called socket wrenches. A set of socket wrenches comprises generally a single handle with a square end portion insertable in a plurality of socket members, each of which has a socket opening corresponding to various sizes of nuts. Again, a set of this type of wrenches is quite expensive, bulky to store, and easily misplaced or lost. They are not particularly portable or compact, and usually are packaged in a relatively large and heavy box unsuitable for carrying in ones pocket.

A first type of single wrench capable of accommodating a variety of nut sizes in an adjustable wrench. These wrenches generally comprise an L shaped member forming the handle portion and the first of two nutengaging jaws. The second nut engaging jaw protrudes from a sleeve adjustably positioned on the handle by means of a thumb wheel screw. Wrenches of this type are useful primarily in turning relatively large nuts; however, they are prone to become unadjusted while being used, generally do not adjust well to small nuts, and further are too bulky to work within confined spaces.

A second type of single wrench adaptable to more than one nut size comprises a flat elongated piece of steel with wrench openings in the ends thereof. Additional nut sizes are accommodated by closed hexagonal openings distributed along the handle portion of the wrench. Wrenches of this type are often used on outboard motors and bicycles. The hexagonal openings along the wrench handle are useful only for turning nuts and bolts located with ample lateral clearance to accommodate the wrench.

The dogie wrench represents still another type of single wrench designed to accommodate more than one size of nut. This wrench resembles a small barbell with hexagonal socket openings arrayed about the rounded end portions. This wrench is also incapable of being used on nuts or bolts in confined areas, although it is easily carried and relatively inexpensive.

The wrench of this invention overcomes the disadvantages of prior art wrenches by providing a single handle storing a plurality of noncircular inserts in matingly shaped receptacles under a pivoted cover. Each insert has one or more socket openings corresponding to the size and shape of common nuts and bolt heads. The inserts are interchangeable to positions at the end of the handle, thereby positioning the socket openings with adequate clearance for engaging and turning bolts and nuts in relatively confined areas. In addition, maximum wrench leverage is achieved on the socket opening currently in use at the end position on the handle. The wrench is self contained in a single compact unit easily stored and carried. The wrench embodies efficient use of a minimum number of parts and is inexpensive to manufacture.

OBJECTS OF THE INVENTION An object of the invention is to provide an improved handy mans wrench.

A second object of the invention is to provide a single-handled wrench incorporating inserts with socket openings adapting the wrench to accommodate various nut sizes.

Another object of the inventions is to provide a single-handled wrench with a plurality of inserts stored in the handle thereof.

A still further object of the invention is to provide a wrench having inserts with socket openings stored in the handle and interchangeable to end positions therein for maximum clearance and leverage for using the wrench.

Yet another object of the invention is to provide a handy mans wrench of the above type which is easily portable, and inexpensive to manufacture.

Other and more specific objects will be apparent from the features, elements, combinations, and operating procedures disclosed in the following detailed description and shown in the drawings.

THE DRAWINGS FIG. 1 is a perspective view of a wrench according to the invention with the cover portion of the wrench handle pivoted to an open position;

FIG. 2 is an exploded perspective view of the wrench of FIG. 1;

FIG. 3 is a top plan view of the wrench of FIG. 1 with the cover in the closed position and partially cut away;

FIG. 4 is a longitudinal sectional view of the wrench of FIG. 1 with the cover in the closed position;

FIG. 5 is a bottom plan view of the wrench;

FIG. 6 is a cross sectional view of the wrench taken along the line 6-6 of FIG. 3;

FIG. 7 is a cross sectional view of the wrench taken along the line 7-7 of FIG. 3; and

FIG. 8 is a perspective view showing the under side of an insert with two socket openings isolated from the handle of the wrench according to the invention.

DETAILED DESCRIPTION Referring now to FIG. I, there is shown a handy mans wrench 10 comprising a handle II, a pivotably mounted cover 12, and four handle inserts I3, 14, I5, and 16, each of which has two hexagonal socket openmgs.

Wrench insert 13 is shown isolated from the remainder of the wrench assembly in FIG. 8. It comprises an elongated base 20 having

parallel side surfaces

21 and 22, and

rounded end surfaces

23 and 24. Two

circular portions

25 and 26 are raised from the under side of the elongated base 20. A flat surface area 27 of the elongated base 20 remains between the two raised

circular portions

25 and 26. This flat surface area extends around the raised

circular portions

25 and 26, fonning shouldered areas generally indicated at 30 and 31. Centered in the raised circular portions and extending through the base 20 are two

hexagonal socket openings

32 and 33. The socket opening 32 has a dimension of one-eighth of an inch between its facing sidewalls, and is therefore adapted to receive a standard '14; inch hexagonal nut or bolt head. The hexagonal socket opening 33 accommodates a 3/ 16 inch hexagonal nut. The socket openings in the remaining wrench inserts 14, 15, and 16 accommodate respectively, a A inch nut, a 5/16 inch nut, a it; inch nut, a 7/16 inch nut, a k inch nut, and a 9/16 inch nut. The socket openings may also be made in a square or slot configuration if the anticipated use of the wrench is on square nuts or bolt heads. The wrench inserts are preferably precision molded of fused powdered steel for strength and durability.

The wrench inserts are interchangeably position in a three layer handle 11. Referring now to FIG. 2, a middle layer 40 is preferably fabricated of metal, such as aluminum or steel, to provide the strength for the handle. Two portions are cut away to form

openings

41 and 42. These openings have a generally figure 8 shape with each loop of the 8 shaped correspondingly to the base portion of the wrench inserts 13-16. As can be seen in FIG. 1, the curved end portions of wrench inserts l3 and 14 touch when they are positioned in opening 41. If greater strength is desired in the handle, the opening 41 can be divided into two openings each receiving one wrench insert and divided by an additional strengthening cross member. Some sacrifice in the compactness of the wrench results from this stronger alternative construction, and the additional strength is not necessary in using the wrench for normal household odd jobs.

Referring still to FIG. 2, a bottom layer 43 of the handle 11 has the same general outside shape as the middle layer 40. Eight circular openings 44 are formed in the bottom layer 43. These openings have a slightly larger diameter than the diameter of the raised circular portions and 26 of the wrench inserts 13-16. The bot-- tom layer 43 is preferably fabricated of high impact resistant styrene.

The metal center handle layer 40 and the plastic bottom handle layer 43 are fastened together with their outside edges aligned by four round head rivets 45. The rivets are installed through aligned openings 46 in the two handle layers, and have their round heads protruding above the center layer as can be seen in FIG. 7. The lower portions of the rivets, expanded to provide a retaining flange, are preferably recessed in the lower handle layer 43 as shown in FIG. 7, providing a smooth bottom surface for the wrench handle.

The FIG. 8 shaped

openings

41 and 42 in the center handle layer 40 combine with the openings 44 in the bottom handle layer 43 to form four receptacles 50 through 53 for receiving the wrench inserts 13 through 16. Referring now to FIGS. 3 and 4, receptacle 50 is shown with wrench insert 13 therein, and receptacle 5] is shown with the wrench insert removed. The elongated base portion 20 of the wrench insert 13 is surrounded by one loop of the FIG. 8 shaped opening 41 in the center handle layer 40. The two raised

circular portions

25 and 26 of the wrench insert extend downward into the circular openings 44 in the bottom handle layer 43. The flat surface 27 and the shouldered

surfaces

30 and 31 of the wrench insert rest against the portions of the bottom handle layer 43 surrounding the openings 44 therein, thereby restraining the wrench inserts in the receptacle.

A cover 12 comprises the upper handle layer. The cover is pivotally mounted on the handle by means of a rivet 60 passing through all three handle layers. The head and mushroomed ends of the rivet 60 are recessed to provide a smooth top and bottom surface for the wrench handle. The cover 12 is restrained in its closed position by means of dimpled depressions 61 in the bottom surface thereof cooperating with the raised rounded heads of rivets 45 as shown in FIG. 7. The cover 12 is preferably slightly arched to resiliently bias the ends thereof downward toward the middle handle layer, and increase the effectiveness of the cooperation of the rivet and the dimpled depression.

The cover 12 is provided with two

openings

62 and 63 near the ends thereof, said openings providing clearance above the socket openings positioned nearest the ends of the wrench. It is preferably also fabricated of high impact styrene, which has sufficient resiliency to bias the ends of the cover downward as described above.

OPERATION OF THE WRENCH The user of the wrench first positions the desired socket opening at one end of the wrench handle comprising the three

handle layers

12, 40, and 43. This is accomplished by pivoting the cover 12 to the open position shown in FIG. 1, and manipulating the interchangeable wrench inserts 13-16 to position the desired size socket opening at one end of the wrench handle. The wrench inserts are easily removed from the handle by pushing them upward, access to the wrench inserts being gained through the openings 44 in the bot tom handle layer 43. After selecting and placing the desired socket opening at one of the end positions of the wrench handle, the cover is pivoted to its closed position and held there as described above.

The user then engages the nut to be turned in the socket opening. If the nut is on a bolt, the threaded shaft of the bolt may protrude upwardly through the socket opening and the

openings

62 or 63 in the wrench cover 12 as shown in FIG. 6. The nut is then turned by rotating the wrench handle about an axis concentric with the longitudinal axis of the bolt. Be-

cause of its elongated shape, the wrench insert incorporating the socket opening cannot rotate within the wrench handle, and a torquing force is generated on the nut by rotating the wrench. handle.

Alternative shapes of wrench inserts may be provided. Any wrench insert with a noncircular shape received in a mating noncircular receptacle in a wrench handle will be restrained from turning within that receptical, thereby transmitting force applied to the wrench handle into torquing force on a nut. The elon gated wrench insert with two socket openings disclosed herein is preferable because either socket opening can be positioned nearest to the wrench end, thereby minimizing the distance between the socket opening and the wrench end.

If the wrench is to be used on hexagonal bolt heads, or on nuts threaded onto bolts wherein the threaded shaft of the bolt does not protrude above the nut in its tightened position, a socket opening in a wrench insert may be engaged on the bolt head or nut without moving the socket opening to the end position of the wrench handle. Use of the wrench in this manner sacrifices some torquing force and clearance capability, however, such use may be convenient in some situations.

The wrench described above is inexpensively manufactured from a minimum of efficiently used parts. It is highly compact, and easy to store or carry. The wrench inserts are stored within the wrench handle, and therefore not easily lost or misplaced.

Since the foregoing description and drawings are merely illustrative, the scope of the invention has been broadly stated herein and it should be liberally interpreted to secure the benefit of all equivalents to which the invention is fairly entitled.

What is claimed is:

l. A handy mans wrench accommodating a plurality of different nuts comprising:

A. a wrench handle having two or more substantially similar elongated receptacles formed therein; and

B. two or more elongated wrench inserts having substantially similar outside shapes interchangeably matingly receivable in the elongated receptacles formed in said wrench handle, thereby restraining said wrench inserts from rotational movement therein, each of said wrench inserts having at least one opening formed therein for receiving and engaging a nut.

2. A handy mans wrench as defined in claim 1, further comprising a cover pivotally mounted on said wrench handle and movable between an open position wherein the cover does not restrict access to the elongated receptacles and a closed position wherein the cover restrains said wrench inserts from removal from I the elongated receptacles in said wrench handle.

3. A handy man's wrench as defined in claim 1, wherein said wrench handle has four substantially similar elongated receptacles formed therein interchangeably matingly receiving four substantially similar elongated wrench inserts, each of said wrench inserts having at least one opening formed therein for receiving and engaging a nut, each of the openings accommodating a different nut.

4. A handy man's wrench as defined in claim 1, wherein each of said wrench inserts have two openings formed therein for receiving and engaging a nut, each of said openings receiving and engaging a different nut.

5. A handy man's wrench as defined in claim 3, wherein each of said substantially similar wrench inserts has an elongated base with two round portions raised therefrom, and each of said openings formed therein passing through the elongated base and one round raised portion.

6. A handy mans wrench as defined in claim 1, wherein one of said two or more substantially similar elongated receptacles fonned in said wrench handle is located at either end thereof.

7. A handy mans wrench as defined in claim 3, wherein at least two of the four receptacles are partially joined.

8. A handy mans wrench as defined in claim 2, wherein said wrench handle comprises a central layer fabricated of metal, a lower layer fabricated of plastic, said central layer and lower layer laminated together, and said cover is fabricated of plastic and pivotally mounted above said central layer.

9. A handy mans wrench as defined in claim 8, wherein said central and lower layers are laminated together by round head rivets, and said pivotally mounted cover has recesses formed therein engagingly receiving said round head rivets to hold said cover in its closed position.

10. A handy mans wrench as defined in claim 2, wherein said pivotally mounted cover has two openings formed therein, larger than the opening formed in said wrench insert and disposed above the openings in said wrench insert when the cover is in its closed position. =0= =l

Claims

1. A handy man''s wrench accommodating a plurality of different nuts comprising: A. a wrench handle having two or more substantially similar elongated receptacles formed therein; and B. two or more elongated wrench inserts having substantially similar outside shapes interchangeably matingly receivable in the elongated receptacles formed in said wrench handle, thereby restraining said wrench inserts from rotational movement therein, each of said wrench inserts having at least one opening formed therein for receiving and engaging a nut.

2. A handy man''s wrench as defined in claim 1, further comprising a cover pivotally mounted on said wrench handle and movable between an open position wherein the cover does not restrict access to the elongated receptacles and a closed position wherein the cover restrains said wrench inserts from removal from the elongated receptacles in said wrench handle.

3. A handy man''s wrench as defined in claim 1, wherein said wrench handle has four substantially similar elongated receptacles formed therein interchangeably matingly receiving four substantially similar elongated wrench inserts, each of said wrenCh inserts having at least one opening formed therein for receiving and engaging a nut, each of the openings accommodating a different nut.

4. A handy man''s wrench as defined in claim 1, wherein each of said wrench inserts have two openings formed therein for receiving and engaging a nut, each of said openings receiving and engaging a different nut.

5. A handy man''s wrench as defined in claim 3, wherein each of said substantially similar wrench inserts has an elongated base with two round portions raised therefrom, and each of said openings formed therein passing through the elongated base and one round raised portion.

6. A handy man''s wrench as defined in claim 1, wherein one of said two or more substantially similar elongated receptacles formed in said wrench handle is located at either end thereof.

7. A handy man''s wrench as defined in claim 3, wherein at least two of the four receptacles are partially joined.

8. A handy man''s wrench as defined in claim 2, wherein said wrench handle comprises a central layer fabricated of metal, a lower layer fabricated of plastic, said central layer and lower layer laminated together, and said cover is fabricated of plastic and pivotally mounted above said central layer.

9. A handy man''s wrench as defined in claim 8, wherein said central and lower layers are laminated together by round head rivets, and said pivotally mounted cover has recesses formed therein engagingly receiving said round head rivets to hold said cover in its closed position.

10. A handy man''s wrench as defined in claim 2, wherein said pivotally mounted cover has two openings formed therein, larger than the opening formed in said wrench insert and disposed above the openings in said wrench insert when the cover is in its closed position.