Housing with functional overmold
AssigneeBlack & Decker Inc.
InventorsTodd A. Hagan, Christine Potter, Michael C. Bowers
Life of this patent
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Abstract
An article having a first structure and a second structure. The first structure includes a structural portion and an overmold portion, which is formed from a resilient material and molded onto the structural portion. The overmold portion is configured to perform an auxiliary function, such as creating a seal portion that is configured to sealing engage the second structure, an isolator portion that is configured to contact the second structure and dampen vibrations that are transmitted thereto and/or an auxiliary gripping surface.
Claims17
A portable power tool comprising a housing structure and a secondary structure that are fixedly but removably coupled to one another, the housing structure at least partially housing at least one of a motor assembly, a transmission assembly and a clutch assembly, one of the housing structure and the secondary structure having a structural molded portion and an overmold portion that is formed from a resilient material and molded onto at least a portion of the molded portion such that the overmold portion is permanently and fixedly coupled to the structural molded portion, the overmold portion defining a seal portion that is configured to engage the other one of the housing structure and the secondary structure to form a seal between the molded portion and the other one of the housing structure and the secondary structure when the housing structure and the secondary structure are coupled to one another.
A portable power tool comprising a first structure and a second structure, the first structure at least partially housing at least one of a motor assembly, a transmission assembly and a clutch assembly, at least one of the first and second structures having a structural portion and an overmold portion that is formed from a resilient material and at least partially molded onto the structural portion so as to be permanently fixedly coupled thereto, the overmold portion defining an isolator portion that is configured to contact the other one of the first and second structures and dampen vibrations that are transmitted between the structural portion and the other one of the first and second structures.
A portable power tool comprising:
- a power train having a motor assembly and a transmission assembly;
- a first structure in which at least a portion of the power train is disposed;
- and
- a second structure that is fixedly but removably coupled to the first structure to at least partially closing the first structure;
- wherein the first structure includes a structural portion and an overmold portion, the overmold portion being formed from a resilient thermoplastic material that is molded onto the structural portion so as to be substantially permanently fixedly coupled thereto, the overmold portion defining a seal that sealingly engages at least one of the power train and the second structure.
A portable power tool comprising:
- a power train having a motor assembly and a transmission assembly;
- a first structure in which at least a portion of the power train is disposed;
- and
- a second structure that is fixedly but removably coupled to the first structure to at least partially closing the first structure;
- wherein the first structure includes a structural portion and an overmold portion, the structural portion having an exterior surface and an interior surface, the overmold portion being formed from a resilient thermoplastic material and being disposed on at least a portion of both the exterior and interior surfaces of the structural portion, the overmold portion being substantially permanently fixedly coupled to the structural portion, the overmold portion defining an isolator that extends from the interior surface of the structural portion and dampens vibrations transmitted between the power train and the structural portion.
Dependencies are inferred from the claim text.