Handle and method of manufacture
View Patent ↗A molded heavy-duty ergonomic handle comprises: a top portion, the top portion extending in a longitudinal direction and being substantially smooth; and at least one U-shaped side channel having a plurality of ribs therein, the at least one channel having substantially smooth exterior surfaces and being located on a longitudinal side of the top portion.
1. A molded ergonomic handle, comprising:
a longitudinally-extending top portion; and,
at least two spaced apart longitudinally-extending U-shaped in cross-section side channels separated by the top portion that is U-shaped and defines a concave region that includes a transversely extending web, the at least two longitudinally-extending U-shaped side channels having a plurality of reinforcing ribs that extend transversely across the width of the U-shaped side channels;
wherein the at least two spaced apart longitudinally-extending U-shaped side channels are diametrically disposed on distal sides of the top portion; and,
wherein the open end of the U-shaped in cross-section top portion faces in a first direction and the open ends of the at least two spaced apart longitudinally-extending U-shaped side channels face in a second opposite direction.
2. The handle of claim 1 , wherein the handle has a longitudinal extent, the web being continuous and extending the entire longitudinal extent of the handle.
3. The handle of claim 2 , wherein a portion of the web forms the top surface.
4. The handle of claim 1 , wherein the ribs extend transversely across the width of the U-shaped channel.
5. The handle of claim 1 , wherein the handle is formed by injection molding.
6. The handle of claim 1 , wherein the handle is monolithically formed.
7. An injection-molded handle, comprising:
a longitudinally-extending main member having a U-shaped cross-section longitudinally extending along its length;
two longitudinally-extending side channels each having a generally U-shaped cross-section co-extending longitudinally along the length of the longitudinally-extending main member and attached to distal sides of the main member; wherein, the side channels include a plurality of transverse reinforcing ribs that provide strength to the handle; and,
wherein an open side defined by the longitudinally extending U-shaped cross-section of the longitudinally-extending main member faces diametrically away from open sides of the side channels, each open side defined by the longitudinally extending generally U-shaped cross-section of the respective side channel.
8. A method of injection-molding the handle of claim 7 , comprising: providing an injection mold having a mold cavity having at least a portion complementary to the handle of claim 7 ; providing an injection gate on the top portion of the main member; and, injecting molten polymer into the mold.
9. The method of claim 8 , wherein the mold comprises one and only one gate.
10. The handle of claim 7 , wherein the handle is monolithic with a cover.
11. The handle of claim 7 , further comprising a web extending between the U-shaped side channels, the web being vertically spaced from the main member.