Hand tool with handle apparatus and associated method
View Patent ↗An improved hand tool includes an improved handle apparatus. The handle apparatus includes an elongated handle having a non-circular external cross-section and further includes an elongated support that comprises an elongated end extending from the handle and having a substantially circular cross-sectional shape. A tool apparatus includes a tool and a socket, with the socket having an opening formed therein. The end of the handle apparatus is received with an interference fit in the opening formed in the socket to retain the handle apparatus and the tool apparatus together. A collar can additionally be provided about the socket to improve the aesthetic properties of the connection between the socket and handle and to increase the toughness of the connection therebetween.
1. A hand tool comprising a handle apparatus and a tool apparatus, the handle apparatus comprising:
an elongated handle having an external cross-sectional shape that is non-circular in a direction transverse to a direction of elongation and having formed therein an aperture that extends substantially the longitudinal extent of the handle;
a support comprising an elongated first portion and an elongated second portion, at least a part of the first portion having a complementary cross-sectional shape to the aperture, in the direction transverse to the direction of elongation, the at least a part of the first portion being received in at least a portion of the aperture, at least a part of the second portion having an external cross-sectional shape that is substantially circular in a direction transverse to the direction of elongation; and
wherein the tool apparatus includes a socket and a tool connected together, the socket having an opening formed therein, wherein the at least part of the second portion is structured to be received in the opening such that at least a portion of the socket has an interference fit with the at least a part of the second portion to secure the handle apparatus to the tool apparatus without use of a mechanical fastener extending across the diameter of the handle apparatus.
2. The handle apparatus of claim 1 wherein the support further comprises a transition portion situated between the first and second portions and which has an external cross-sectional shape that varies between non-circular at a location disposed adjacent the first portion and substantially circular at a location disposed adjacent the second portion.
3. The handle apparatus of claim 1 wherein the handle and the first portion of the support are adhered together.
4. The hand tool of claim 1 wherein the socket includes a region having an internal cross-sectional shape that is substantially circular and that has the interference fit with the at least part of the second portion, and wherein the socket includes an elongated other region having an internal cross-sectional shape that is non-circular in a direction transverse to the direction of elongation.
5. The hand tool of claim 4 wherein a portion of the handle is received in the other region of the socket.
6. The hand tool of claim 5 wherein the tool apparatus further has a collar having a hole formed therein, at least a portion of the collar being situated on an external surface of the other region of the socket, at least a portion of the handle being received in the hole.
7. The hand tool of claim 6 wherein at least a portion of the collar is received between the handle and the socket.
8. The hand tool of claim 7 wherein the collar has a number of tabs that extend into the hole, the handle and at least a portion of the number of tabs being engaged together.
9. The handle apparatus of claim 1 wherein the handle has an external cross-sectional shape that is substantially unvarying throughout its longitudinal extent.
10. A method of manufacturing a hand tool that comprises a tool apparatus having a socket and a tool connected together, the socket having an opening formed therein, the method comprising:
providing a tool apparatus having a socket and tool connected together, the socket having an opening formed therein;
providing a handle apparatus that includes an elongated handle and a support, the handle having an external cross-sectional shape that is non-circular in a direction transverse to the direction of elongation and having formed therein an aperture that has a non-circular cross-sectional shape, the aperture extending substantially the longitudinal extent of the handle, the support having an elongated first portion and an elongated second portion, at least a part of the first portion having an external cross-sectional shape that is complementary to a cross-sectional shape of the aperture and second portion having an external cross-sectional shape that is substantially circular in a direction transverse to the direction of elongation;
at least partially receiving the first portion in at least a portion of the aperture; and
receiving at least a part of the second portion in the opening with an interference fit between the second portion and the socket to join the handle apparatus to the tool apparatus without requiring the use of a mechanical fastener.
11. The method of claim 10 , further comprising adhering together the handle and the first portion of the support.
12. The method of claim 10 , further comprising:
receiving at least a part of the second portion through a hole formed in a collar of the tool apparatus; and
receiving at least a portion of the collar between the handle and the socket.
13. The method of claim 12 wherein the collar has a number of tabs that extend into the hole, and further comprising engaging together the handle and at least a portion of the number of tabs.
14. The method of claim 10 , further comprising providing as the handle an elongated handle whose external cross-sectional shape is substantially unvarying throughout its longitudinal extent.