Nail-driving hammer
View Patent ↗The present invention is a manual nailing tool configured to provide a user with improved functional advantages over prior art hammers. It manually drives a substantial or predetermined amount of a fastener, such as an 8.89 cm (3½ inch) common nail, into a work piece with one hand using one striking action. The unique configuration of the integrally formed nail-starter and angled strike face closely combines the nail-starter function with a full force, sustained first strike on the nail head. The hammer is also configured with a unique head shape and strike face to improve striking power and facilitate a stronger and more direct impact force on the nail head.
1. A hammer ( 36 ) comprising:
a handle ( 38 ), the handle having an upper handle portion ( 40 ), and a lower handle portion ( 42 ): and a head ( 37 ) disposed on the upper handle portion ( 40 );
the head ( 37 ) having a centrally configured head body ( 62 ) that is integrally formed with the upper handle portion,
wherein the head ( 37 ) is comprised of a curved and tapering nail-starter strike face neck ( 46 ) of a predetermined length,
wherein the nail-starter strike face neck has a nail-starter strike face ( 48 ), configured at a predetermined angle and the lower portion of the nail-starter strike face neck ( 46 ) further extends as a horizontal cylinder segment ( 50 ),
wherein is configured a groove and magnet ( 54 ) to arrange and affix a nail thereon, a semi-circular nail head opening ( 58 ) comprising a shoulder and configured to receive the nail head in a position between the shoulder and the nail-starter strike face ( 48 ), and
wherein the horizontal cylinder segment ( 50 ) includes a convex strike face ( 52 ) in both horizontal and vertical directions, characterized in that a chamfer ( 53 ) is disposed along the edges of the strike face ( 52 ); and
wherein the adjacent end of the hammer ( 36 ) head ( 37 ) is configured with a bell neck ( 66 ) and bell ( 68 ), wherein the bell ( 68 ) includes a convex bell strike surface ( 70 ) in both horizontal and vertical directions, characterized in that a chamfer ( 71 ) is disposed along the edges of the strike face;
and a bifurcated claw nail remover ( 64 ) disposed on top of the head ( 37 ).
2. The hammer ( 36 ) of claim 1 , wherein the nail-starter strike face neck ( 46 ) tapers at a reducing diameter as it extends away from a center of the head body ( 62 ) and towards the nail-starter strike face ( 48 ).
3. The hammer ( 36 ) of any one of the preceding claims, wherein the nail-starter strike face is generally round shaped comprising a predetermined diameter and having the head disposed directly behind said nail-starter strike face.
4. The hammer ( 36 ) of claim 1 , wherein the head ( 37 ) is laterally offset a predetermined distance (H) relative to a vertical center line (Y) of the lower handle portion ( 42 ).
5. The hammer ( 36 ) of claim 4 , wherein the upper handle portion ( 40 ) is generally curved as it transverses upward to attach with a bottom center of the head ( 37 ).
6. The hammer ( 36 ) of claim 1 , wherein the upper handle portion ( 40 ) comprises an I-shape cross-sectional profile having front and rear flanges, and a center web.
7. The hammer ( 36 ) of claim 1 , wherein the nail-starter strike face is angled preferably between 75 and 85 degrees relative to a horizontal plane of the nail-starter strike face neck.
8. The hammer ( 36 ) of claim 1 , wherein the handle ( 38 ) comprises a metal shaft and disposed with a covering of a different material on top of the metal shaft, and wherein the covering comprises at least one of indents, ridges and textures on a front and a rear surface of the covering.
9. The hammer ( 36 ) of claim 1 , wherein the groove is a v-shaped nail shaft groove ( 60 ) comprising nail shaft support walls wherein the nail shaft support walls are angled to form a 60 degree vertical wedge.