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US 7,742,791 B2Granted
Positioning structure, positioning method, case and mobile communication terminal
AssigneeNEC Corporation
InventorNaoki Shiogama
Life of this patent
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AssigneeNEC Corporation
InventorNaoki Shiogama
Estimating the term…
In integrally forming a positioning convexity on an inner surface of a case, breakage during a fall and the like is prevented by increasing the strength of the positioning convexity without causing a defective appearance during the molding of the case. In performing the positioning of a top cover and a built-in frame by fitting together a positioning concavity formed in the built-in frame and a positioning convexity which is integrally formed on an inner surface of the top cover, the positioning convexity is formed from a rib in the shape of a box or the like. To lessen stress concentration, the positioning convexity is disposed in the vicinity of a screw fixing section. To improve assemblability, a curved surface or an inclined surface which guides the fitting into the positioning concavity is formed at a leading end of the rib which constitutes the positioning convexity.
A positioning structure which positions an incorporated member which is to be incorporated in a case with respect to the case, comprising:
A positioning method for positioning an incorporated member which is to be incorporated in a case with respect to the case, comprising the steps of:
A case in which an incorporated member is to be incorporated, the case integrally containing a positioning convexity which positions the incorporated member by fitting into a positioning concavity which is formed in the incorporated member, wherein the positioning convexity comprises two protrusions extending into the positioning concavity, wherein the two protrusions are connected to one another by a member extending from ends of the two protrusions such that the member is positioned adjacent and substantially parallel to a portion of the positioning concavity, and wherein arrangement of the two protrusions and the member is configured to form an enclosed hollow cavity between the two protrusions and the member.
A mobile communication terminal having a case in which a built-in frame is to be incorporated, comprising:
Dependencies are inferred from the claim text.