US2833323A

US2833323A - Hammer

Info

Publication number: US2833323A
Application number: US508445A
Authority: US
Inventors: Strickland John William
Original assignee: Individual
Current assignee: Individual
Priority date: 1955-05-16
Filing date: 1955-05-16
Publication date: 1958-05-06
Anticipated expiration: 1975-05-06

Description

May 6, 1958 ,1. w. STRICKLAVND HAMMER Filed May 16, 1955 INVENTOR John M fifrickland Attorney vibration in use of the hammers.

United States Patent HAMMER John William Strickland, Cuyahoga Falls, Ohio Application May 16, 1955, Serial 110,508,445

6 Claims. (Cl. 145-29) This invention relates to hammers, and in particular relates to an improved hammer head.

I Hammer heads have heretofore been provided with interchangeable adapter ends, but these have not been entirely satisfactory for various reasons, such as that these adapter ends sometimes worked free due to shock or Interchange or replacement of the adapter ends was diflicult to accomplish or required use of special tools. Moreover, the conventional handle attaching means, usually including a wedge driven into the end of the handle, was unsatisfactory because the wedge frequently became loose or split the end of the handle, and resulted in eventual separation of the handle from the hammer head.

One object of the present invention is to provide a hammer head of the character described wherein is provided easily interchangeable and replaceable adapter ends, and including foolproof releasable means for positively locking the adapter ends on the hammer head.

Another object of the invention is to provide a hammer head of the character described wherein is included improved means for positively locking a handle in attached position on the same.

Another object of the invention is to provide a hammer head of the character described which may be economically manufactured in large scale production, as by use of automatic machinery, or use of a maximum number of standard parts and material.

These and other objects of the invention will be manifest from the following brief description and the accompanying drawings.

Of the accompanying drawings:

Figure l is front elevation of a hammer having the improved hammer head incorporated therein.

Figure 2 is an end elevation thereof, partly broken away, as viewed from the right of Figure 1.

Figure 3 is a horizontal cross-section, on an enlarged scale, taken substantially on the line 3-3 of Figure 1.

Figure 4 is an exploded view, partly in section, of a portion of the hammer head at the right of Figure 3.

Referring to the drawings generally, the numeral designates a hammer head incorporated on a Wooden handle 11. The hammer head 10 may comprise a tubular sleeve or member 12 of metal or other suitable material,

having aligned openings 13 and 14 through diametrically posite ends thereof, may have grooves 19 in the inner faces thereof complementally engaged by opposite arcuate portions of the handle (see Figure 3), and these discs are secured to the handle as by means of countersunk screws 20 threaded into the same. Thus, removal of the 2,833,323 Patented May 6, 1958 handle is prevented by engagement of the discs with the inner surfaces of the sleeve.

For releasa-bly securing the

adapter ends

16 and 17 on sleeve 12, said adapter ends may have reduced shanks 16a and 17a, respectively, slidably received in

sockets

22, 22 defined by the wall of the sleeve, and defining

shoulders

23, 23 abutting the outer ends of the sleeve, and springpressed pins or

detents

24, 24 mounted in these shanks are positively engaged in

apertures

25, 25 extending through the wall of the sleeve. Thus, the adapter ends may not be removed, except by inward insertion of a pointed tool within the corresponding apertures 25, yieldingly to depress the ins sufiiciently to permit outward removal of the respective adapter ends. Conversely, the adapter ends are easily positioned in the sleeve, by insertion of the shanks 16a, 17a in the sockets with the detents aligned with narrow chamfered

portions

27, 27 which are inwardly inclined with respect to the axis of said sleeve, so that the detents are depressed inwardly as shown at the right of Figure 3, thereby to permit the adapter ends to be rotated with respect to the sleeve until the detents are spring-urged into the respective apertures 25.

in use of the improved hammer the adapter ends 16 and 17are positively locked in the sleeve 12 by the detents 24, and cannot be separated therefrom without releasing the detents as described above. Thus, the adapter ends cannot be loosened by vibration or shock of the usual pounding action of the hammer. The adapter ends are easily replaceable as described, upon the same becoming worn, or for providing adapter ends of different materials, such as aluminum, steel, rubber, lead, etc. These adapter ends are also easily removable for access to the

handle locking discs

18, 13, as for replacement of the handle 11 upon the same becoming worn or damaged.

Modifications of the invention may be resorted to without departing from the spirit thereof or the scope of the appended claims.

What is claimed is:

l. A hammer head comprising a tubular sleeve having impact means thereon and having opening means in the wall thereof for insertion of the end of a handle to extend at an angle to the longitudinal axis of the sleeve, at least one insert received within said sleeve from an end thereof, means on said insert for attaching the same to said end portion of the handle within the sleeve, said insert being engageable with the inner periphery of the sleeve to prevent removal of the handle from the sleeve, said impact means including at least one adapter end having a reduced portion removably received in an end of said sleeve, and means for securing said adapter end on said sleeve.

2. A hammer head comprising a tubular sleeve having impact means thereon and having opening means in the wall thereof for insertion of the end of a handle to extend at an angle to the longitudinal axis of the sleeve, at least one insert slidably received within said sleeve from an end thereof, and means on said insert for attaching the same to said end portion of the handle within the sleeve, said insert being engageable with the inner periphery of the sleeve to prevent removal of the handle from the sleeve.

3. A hammer head comprising a tubular sleeve having opening means in the wall thereof for insertion of the end of a handle to extend at an angle to the longitudinal axis of the sleeve, oppositely disposed inserts slidably received within said sleeve from opposite ends thereof, means on said inserts for attaching the same to said end of the handle, said inserts being engageable with the sleeve to prevent removal of the handle therefrom, impact means including at least one adapter end having a reduced portion removably received in an end of said sleeve, and means for securing said adapter end on said sleeve.

4. A hammer head, as set forth in claim 2, said sleeve having impact means thereon including at least one adapter end having an adapter portion removably received in an end of the sleeve, said sleeve having an aperture in the wall thereof, said adapter portion having thereon a springpressed detent yieldingly releasably engageable in said aperture to lock the adapter end in said sleeve, said detent thereby being yieldingly depressible to released position as by inward reception of a tool within said aperture yieldingly to permit separation of the adapter end from the sleeve.

5. A hammer head, as set forth in claim 2, said sleeve having impact means thereon including at least one adapter end having an adapter portion removably received in an end of the sleeve, said sleeve having an aperture in the wall thereof, said adapter portion having thereon a-spn'ngpressed detent yieldingly releasably engageable in said aperture to lock the adapter end in said sleeve, said detent thereby being yieldingly depressible to released position as by inward reception of a tool within said aperture yieldingly to permit separation of the adapter end from the sleeve, said sleeve having a chamfered portion on the inner periphery of said sleeve, and extending from an open end thereof at an angle toward the axis of the sleeve to facilitate yielding reception of said detent within said sleeve.

6. A hammer head, as set forth in claim 2, said sleeve having impact means thereon including at least one adapter end having an adapter portion removably received in an a 4 end of the sleeve, said sleeve having an aperture in the wall thereof, said adapter portion having thereon a springpressed detent yieldingly releasably engageable in said aperture to lock the adapter end in said sleeve, said detent thereby being yieldingly depressible to released position as by inward reception of a tool within said aperture yieldingly to permit separation of the adapter end from the sleeve, said sleeve having a chamfered portion on the inner periphery of said sleeve, and extending from an open end thereof at an angle toward the axis of the sleeve to facilitate yielding reception of said detent within said sleeve, said chamfered portion being circumferentially spaced from said aperture and said detent being receivable in said recess by relative rotation of the adapter end with respect to said sleeve.

References Cited in the file of this patent UNITED 'STATES PATENTS 235,244 Howe Dec. 7, 1880 334,283 Randall -Jan. 12, 1896 599,783 Hogan Mar. 1, 1898 834,827 Luse Oct. 30, 1906 1,532,135 Gibbs Apr. 7, 1925 1,685,503 Pfauser Sept. 25, 1928 2,377,157 Kindland May 29, 1945 2,570,691 Kindland Oct. 9, 1951