US2963706A - Staple setter and hammer - Google Patents

Description

Dec. 13, 1960 w.1 NAMANNY 7 2,963,706

STAPLE SETTER AND HAMMER Filed June 8, 1959 2 Sheets-Sheet 1 E g t 2% R Q R v 1 j w Q 1% N E k j k 3H, It: QM; I I 6 1N VEN TOR.

William L. Namanny Dec. 13, 1960 w. L. INAMANNY 2,963,706

STAPLE SETTER AND HAMMER Filed June 8, 1959 2 Sheets-Sheet 2 gg rnlll M'l/iam L. IVamanny INVENTORQ United States Patent 2,963,706 Patented Dec. 13, 1960 STAPLE SEITER AND HAMMER William L. Namanny, RR. 2, Denison, Iowa Filed June 8, 1959, Ser. No. 818,816 1 Claim. c1. 1-49 This invention relates to tools and more particularly to a staple setter and hammer especially useful in applying fence wire to fence posts or the like.

An object of the invention is to provide a hammer capable of maintaining a supply of staples within the handle thereof, the staples being automatically fed in response to reciprocation of the hammer into a discharge chamber after which they are set into the wooden posts for driving.

Another object of the invention is to provide a tool for materially reducing the time and eifort involved in stringing fence wire or other analogous jobs, the tool containing a magazine supporting staples that are yieldingly pressed toward a staple receiving chamber in the head of the hammer. The chamber has a cavity and a weight which is reciprocatably mounted in the chamber so that upon normal swinging movement of the hammer the weight drives one staple into the fence post, at least starting the staple or setting it so that it may be completely driven in. This always leaves one hand of the user of the tool free to hold the wire or to do any other job.

These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter escribed and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a top view of the hammer showing it in use, portions of the hammer handle being shown in section to illustrate otherwise hidden details of construction.

Figure 2 is a longitudinal sectional view of the hammer and taken on the line 22 of Figure 1.

Figure 3 is a sectional view on an enlarged scale and taken on the line 3-3 of Figure 1.

Figure 4 is a sectional view taken on the line 4-4 of Figure 2.

Figure 5 is a sectional view taken on the line 5-5 of Figure 2.

Figure 6 is a sectional view taken on the line 66 of Figure 2.

Figure 7 is a sectional view taken on the line 7-7 of Figure 2.

Figure 8 is a perspective view of the staple advancing pusher mounted in the magazine for advancing the staples.

In the accompanying drawings, there is illustrated a conventional fence post 10 and a conventional fence wire 12. The post and wire are illustrated to show one possible use of the hammer 14, although it is evident that other uses are quite obvious. Hammer 14 has a hollow hammer handle 16 and a hollow head 18. The handle has a pair of side walls 26 and 22 (Figure 7) provided with longitudinal grooves 24 and 26 extending lengthwise of the handle. These grooves receive the lateral pins 28 (Figure 8) on opposite sides of the members 30 and 32 of the follower-type staple advancing device 34. An inverted substantially U-shaped member 36 embodies limbs secured to cooperating ends of side members 30 and 32, and a pair of thrust or reaction plates 38 and 40 are secured to the opposite ends of members 36 and 32. Expansible coil springs 42 and 44 are engaged with thrust plates 38 and 40 and with a fixed closure 46 at one end of the hammer handle. The closure is held in place by screws 48, which may be threaded in place or otherwise secured; and member 36 operates on guide 104.

Device 34 is slidingly operable in the magazine 50 defined by the side walls of the hollow hammer handle. This magazine contains a quantity of staples 52 which are pushed forward toward the hammer head 18 at all times by the yielding bias of springs 42 and 44. A door 56 connected by hinge 58 to the top wall of the hammer handle, may be opened to load the magazine 50 with staples. The door may have a small catch thereon to hold it in place and preferably has a small fingergrip 60 for hingedly lifting the door to the open position.

Hammer head 18 is made of a hollow body or tubular guide 62 having four side walls 63, 64, 65 and 66. There are parallel grooves 68 and 76) in walls 65 and 66 and these receiving lateral projections 72 and 74 on opposite sides of the weight 76. The weight is mounted in the chamber defined by the side walls 63, 64, 65 and 66 of the hammer head. One end of chamber 80 is closed by the hammer head striker 82 that has a reduced shank portion 84 disposed in chamber 80. Striking member 82 is held in place by screws 86 or by like fasteners or may be made fixed in some other Way to the remainder of the hammer head.

There is a staple receiving chamber 90 in the hammer head for receiving staples 52 when they are pushed thereinto by the bias of springs 42 and 44. Further, the weight 76 has a notch 92 between its upper and lower ends to form a pocket within which to receive each staple. This notch is seen in the side view (Figure 2) and there is one staple in the pocket. The lower end of chamber 90 has an opening 96 for the discharge of the staples. A pair of aligning bowed leaf springs 100 and 102 are attached to the sides 65 and 66 and grip the sides of the staples lightly to retain them in proper position for starting the staples, for instance as shown in Figure 5.

In use and operation its i assumed that the magazine 56 contains a quantity of staples 52 and that the staple advancing device 34 is in place. The hammer is swung in a normal arc and this causes the weight 76 to move down. The weight may move down only a predetermined amount inasmuch as grooves 76 and 68 that accommodate the projections 72 and 74 have ends which terminate adjacent to springs and 162 (Figure 3). As the weight moves down the staple in pocket 92 also moves down. This positions the first staple as shown in dotted lines in Figure 3.

Upon a subsequent swing of the hammer, the staple that is held in position by springs 100 and 102 is started in a fence post 10 and at the same time another staple is received in the pocket 92 for subsequent operation.

The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly all suitable modifications and equivalents may be resorted to, falling within the scope of the invention as claimed.

What is claimed as new is as follows:

A fence wire staple setting, starting and driving imple ment comprising, in combination, a hammer embodying an elongated hollow handle having top, bottom and side walls defining a staple magazine, said handle being open at its outer distal end and communicatively joined to an intermediate portion of a right angularly disposed tubular guide, a portion of the top wall of the handle adjacent said tubular guide having a staple loading opening, a door there-for, an elongated centrally positioned rib fixed in the hollow portion of said handle and of a length generally commensurate with the length of the handle and having a cross-section corresponding to the shape of a conventional U-shaped fence wire staple, said rib serving to permit a plurality of staples to be slidingly saddled thereon in a manner that the staples may be ejected through the open outer end of the handle into said tubular guide one at a time, a follower-type staple ejector comprising a U-shaped member also straddling the rib engageable with staples strung on said rib, a pair of spaced parallel limbs keyed in grooves provided therefor in side walls of said handle and having forward ends connected to intermediate portions of the arms of the U-shaped member, said limbs being disposed and extending along the longitudinal sides of the rib, coil springs interposed between rearward ends of the limbs and the inner end of said hollow handle, weight means slidingly keyed in the hollow portion of said guide, said weight means having a staple receiving and delivering pocket, one end of said guide being open to discharge the staples, and the interior of the guide adjacent said open end having opposed longitudinally bowed spaced parallel staple supporting springs.

References Cited in the file of this patent UNITED STATES PATENTS 529,237 Bischofi: Nov. 13, 1894 1,224,076 Crofoot Apr. 24, 1917 1,671,733 Maynard May 29, 1928 1,746,495 Palmgren Feb. 11, 1930 2,193,143 Rapien Mar. 12, 1940 2,445,178 Lindstrom July 13, 1948 FOREIGN PATENTS 73,832 Switzerland Dec. 1, 1916

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