SINGLE STEP-TYPE KEY, STEP-TYPE KEY ASSEMBLY AND RADIOTELEPHONE WITH THE STEP-TYPE KEY ASSEMBLY

摘要

The present invention relates to a Single Step key, the terminal having a key assembly steps and stairs key assembly, the first inclined surface inclined at a predetermined angle in a Single Step key is disclosed; A second inclined surface in a direction opposite from the first inclined surface is connected to the inclined angle of the predetermined; It is opened to the lower side of the first inclined surface and the prior, main portion having a first height; Extends to the lower side and rear side of the second inclined surface, the protrusion having a second height smaller than the first height; And is constituted by an elongated extending to the lower side corresponding to the first and second inclined surfaces.; Terminal, the key, the data input device, staircase