Supports: cabinet structure – For particular electrical device or component – Housing for computer or computer related equipment
Reexamination Certificate
2000-05-12
2001-06-19
Cuomo, Peter M. (Department: 3636)
Supports: cabinet structure
For particular electrical device or component
Housing for computer or computer related equipment
C349S058000, C361S689000
Reexamination Certificate
active
06247768
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Technical Field of the Invention
The present invention relates generally to a easy-to-replace protective sheet mount structure for a display which may be used in electronic terminal devices such as electronic cash registers.
2. Background Art
FIG. 22
shows a conventional electronic cash register which includes a display
60
and a key board
61
. Data is inputted using the key board
61
and then indicated on the display
60
.
The display
60
has a protective sheet
72
directly attached to a display screen thereof. It is, thus, difficult to replace the protective sheet
72
. Such a structure also cannot keep free from mist of water to the display screen of the display perfectly.
SUMMARY OF THE INVENTION
It is therefore an object of the invention to provide an easy-to-replace protective sheet mount structure for a display which may be used in electronic terminal devices such as electronic cash registers.
It is another aspect of the invention to provide an improved protective sheet mount structure for a display designed to keep free from mist of water to a display screen.
According to one aspect of the invention, there is provided a display apparatus which comprises: (a) a casing having an opening formed therein; (b) a tough sensitive display installed in the casing with a touch screen exposed through the opening; (c) a frame mount provided on the casing around the opening; (d) a protective sheet covering the touch screen; and (e) a sheet mount frame fitted in the frame mount detachably to retain the protective sheet on the casing.
In the preferred mode of the invention, a sealing member is further provided which is disposed between the casing and the sheet mount frame around the opening.
The opening is of a rectangular shape. The frame mount is provided around right and left side portions and a lower portion of the opening and has recesses formed in right and left portions and a lower portion of the frame mount. The sheet mount frame is of a rectangular shape and has a slip-on rib formed on an upper edge thereof and protrusions formed on right and left side portions and a lower portion. The slip-on rib is fit on an upper edge of the opening of the casing. The protrusions engage the recesses of the frame mount to install the sheet mount frame on the frame mount.
A drain groove is formed in the frame mount around the opening outside the sealing member. A drain hole is formed in the drain groove for draining water entering the drain groove.
Right and left drain grooves may be formed which extend along right and left sides of the opening. A lower drain groove may be formed which extends along a lower portion of the opening and which leads to the right and left drain grooves. Right and left drain holes may be formed in the right and left drain grooves, respectively.
The frame mount is of a rectangular shape and has recesses formed on upper right and left side portions thereof. The protective sheet is of a rectangular shape and has lugs formed on upper right and left side portions thereof and a step portion formed on a lower end portion thereof. The lugs are fitted in the recesses of the frame mount. The step portion is fitted on a lower edge of the opening of the casing.
REFERENCES:
patent: 4779025 (1988-10-01), Paynton et al.
patent: 5335076 (1994-08-01), Reh et al.
patent: 5419626 (1995-05-01), Crockett
patent: 5479285 (1995-12-01), Burke
patent: 5570267 (1996-10-01), Ma
patent: 5586002 (1996-12-01), Notarianni
patent: 5835139 (1998-11-01), Yun et al.
Cuomo Peter M.
Hansen James O.
Matsushita Electric - Industrial Co., Ltd.
Woo Louis
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