Multi-layer steel plate and recording apparatus
AssigneeSeiko Epson Corporation
InventorYosaku Tamura
Life of this patent
Estimating the term…
Abstract
A frame as a multi-layer steel plate is a multi-layer steel plate including a plurality of steel plates being stacked, outer peripheries of which have a plurality of sides, in which positions of the plurality of sides of the plurality of steel plates include portions located at identical positions in plan view, the plurality of steel plates are fixed to each other by welding at the plurality of sides located at the identical positions in plan view, and among the plurality of steel plates, at least one of the steel plates is processed into a shape different from a shape of other steel plates.
Claims11
A multi-layer steel plate comprising:
- a plurality of steel plates being stacked, outer peripheries of which have a plurality of sides, wherein
- positions of the plurality of sides of the plurality of steel plates include portions located at identical positions in plan view,
- the plurality of steel plates are fixed to each other by welding at the plurality of sides located at the identical positions in plan view,
- among the plurality of steel plates, at least one of the steel plates is processed into a shape different from a shape of other steel plates of the plurality of steel plates,
- a portion of the at least one of the steel plates processed into the different shape has a bent portion bent in a thickness direction,
- each of the plurality of steel plates are formed with a protruding portion having an identical location in the thickness direction, and
- the bent portion is bent up in the thickness direction on the protruding portion of the at least one of the steel plates.
A multi-layer steel plate comprising:
- a plurality of steel plates being stacked, outer peripheries of which have a plurality of sides, wherein
- positions of the plurality of sides of the plurality of steel plates include portions located at identical positions in plan view,
- the plurality of steel plates are fixed to each other by welding at the plurality of sides located at the identical positions in plan view,
- among the plurality of steel plates, at least one of the steel plates is processed into a shape different from a shape of other steel plates, and
- a portion of the at least one of the steel plates processed into the different shape has a bent portion bent in a thickness direction,
- wherein the bent portion has a fixing hole disposed therein.
A multi-layer steel plate comprising:
- a plurality of steel plates being stacked, outer peripheries of which have a plurality of sides, wherein
- positions of the plurality of sides of the plurality of steel plates include portions located at identical positions in plan view,
- the plurality of steel plates are fixed to each other by welding at the plurality of sides located at the identical positions in plan view,
- among the plurality of steel plates, at least one of the steel plates is processed into a shape different from a shape of other steel plates, and
- a portion of the at least one of the steel plates processed into the different shape has a bent portion bent in a thickness direction,
- wherein the plurality of steel plates forms a three-layer structure, two layers have an identical shape, and any one of outer layers is processed into a shape different from the shape of the other two layers.
Dependencies are inferred from the claim text.