Heating roller device with a heating element disposed in a roller body
OwnerSteven Yueinventor
Life of this patent
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Abstract
A heating roller device is used to fix a film to a sheet in a laminator, and has two heating rollers. Each of the rollers includes a hollow support shaft, a roller body disposed rotatably around the support shaft, and a heating element disposed in the roller body. An electrical wire extends into the support shaft, and is in electrical connection with the heating element.
Claims10
A heating roller device for fixing a film to a sheet in a laminator, the laminator including a power supply and a driving unit, said heating roller device comprising two rollers that are spaced apart from each other and that are rotatable in opposite directions so that the film and the sheet can be superposed, clamped, and moved between said rollers, each of said rollers including:
- a hollow support shaft adapted to be fixed in the laminator;
- a hollow roller body disposed rotatably around said support shaft and adapted to be rotated by the driving unit;
- an electrical wire extending into said support shaft and having an input end that is adapted to be in electrical connection with the power supply, and an output end;
- and
- a heating element disposed within said roller body and in electrical connection with said output end of said electrical wire so that heat is radiated from said heating element to said roller body when electricity is supplied from the power supply to said heating element via said electrical wire.
A heating roller for a laminator, the laminator including a power supply and a driving unit, said heating roller comprising:
- a hollow support shaft adapted to be fixed in the laminator;
- a hollow cylindrical roller body disposed rotatably around said support shaft and adapted to be rotated by the driving unit;
- an electrical wire extending into said support shaft and having an input end that is adapted to be in electrical connection with the power supply, and an output end;
- and
- a heating element disposed in said roller body and in electrical connection with said output end of said electrical wire so that heat is radiated from said heating element to said roller body when electricity is supplied from the power supply to said heating element via said electrical wire.
Dependencies are inferred from the claim text.