Television – Video display – Cabinet or chassis
Reexamination Certificate
1999-09-02
2001-05-15
Cuomo, Peter M. (Department: 3624)
Television
Video display
Cabinet or chassis
C348S825000, C312S007200
Reexamination Certificate
active
06233026
ABSTRACT:
CLAIM OF PRIORITY
This application makes reference to, incorporates the same herein, and claims all benefits accruing under 35 U.S.C. §119 from my application MONITOR COMPRISING SNAP ENGAGING BOTTOM SHIELD filed with the Korean Industrial Property Office on Feb. 18, 1999 and there duly assigned Ser. No. 5282/1999.
BACKGROUND OF THE INVENTION
1. Technical Field
The present invention relates to a monitor, and specifically to a monitor comprising a bottom shield which easily engages with a front case.
2. Related Art
The term “monitor” generally refers to an apparatus displaying letters, symbols or diagrams by fluorescent materials which glow when hit by electrons emitted from a cathode ray tube according to image signals. In the monitor, a bottom shield with a printed circuit board contained therein is installed, and carries out various functions by sending out image signals or electronic signals to the cathode ray tube. Such a bottom shield is secured to a front case by means of various engaging members at the lower portion of the front case.
However, such structure of the bottom shield has such problems as extended assembly time due to complexity in assembly operation, which is caused by engagement of screws, and weakening of the securing force of the screws between the bottom shield and the front case caused by impact and vibration while moving the cathode ray tube during the assembly procedure. In addition, the securing of the cathode ray tube using only supporting bosses does not provide sufficient supporting force for the weight of the cathode ray tube.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a monitor comprising a bottom shield which can easily be secured to and removed away from a front case.
Another object of the present invention is to provide a monitor having improved reliability by preventing vertical and horizontal vibration of a bottom shield.
In order to achieve the above objects, a monitor according to the present invention comprises a front case, a rear case, a bottom shield, and a cathode ray tube disposed therebetween, and has structures between the bottom shield and the front case.
Specifically, a pair of snap members protruding from both lower rear corners of the front case are provided, and a pair of through holes are formed on the bottom shield at locations corresponding to the pair of snap members. The through holes receive the snap members to secure the bottom shield and the front case.
A pair of supporting members supporting the cathode ray tube on an upper surface thereof are provided. The supporting members are spaced away from the snap members and protrude from rear corners of the front case.
Preferably, the snap members comprise a first snap pin whose sectional profile is a semi-circle, and a second snap pin placed below and spaced away from the first snap pin. The second snap member has a stopping flap on a peripheral surface of an upper end. The stopping flap prevents the snap member from detaching away from said through holes when the snap members are inserted into the through holes.
A pair of guide rails protruding from the rear surface of the corners of the front case is also provided. A pair of protruding ribs corresponding to the guide rails can be provided on the bottom shield. The ribs abut said guide rails to guide the bottom shield when securing the bottom shield onto the front case.
Preferably, surfaces slanted in a predetermined angle are provided at a side of the protruding ribs so that, when the snap members are received in the through holes, the inner peripheries of the guide rails abut the slanted surfaces to facilitate engagement.
The supporting member can comprise a vertical plate and a horizontal plate directly contacting the cathode ray tube. The horizontal plate is connected to said vertical plate.
The bottom shield can comprise a printed circuit board, and a metal bracket receiving the printed circuit board therein.
According to another aspect of the monitor according to the present invention, the monitor comprises a front case having a pair of guide rails protruding backwards from corners of rear side thereof; a cathode ray tube installed at the back side of the front case; a pair of supporting members providing support surfaces supporting the cathode ray tube thereon, the supporting members protruding from the corners of a rear side of the front case; and a bottom shield having a pair of protruding ribs abutting the guide rails and guiding the bottom shield when the bottom shield engages the front case.
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Kim Ki-Seon
Lee Wan-Sub
Bushnell , Esq. Robert E.
Cuomo Peter M.
Hansen James O.
Samsung Electronics Co,. Ltd.
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