BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a side view of a pivotal positioning mechanism of a conventional display device;
FIG. 2A is a perspective showing the positioning mechanism according to a first embodiment of the invention is in a first positioning state;
FIG. 2B is a perspective showing the positioning mechanism according to a first embodiment of the invention is in a second positioning state;
FIG. 3 is a perspective of a positioning mechanism according to a second embodiment of the invention; and
FIG. 4 is a perspective of a positioning mechanism according to a third embodiment of the invention.
DETAILED DESCRIPTION OF THE INVENTION
First Embodiment
Referring to FIG. 2A˜2B. FIG. 2A is a perspective showing the positioning mechanism according to a first embodiment of the invention is in a first positioning state. FIG. 2B is a perspective showing the positioning mechanism according to a first embodiment of the invention is in a second positioning state. As indicated in FIG. 2A˜2B, the positioning mechanism 20 comprises a fixed frame 21, a first buckling element 27, a second buckling element 28 and a rotary component 22. The first buckling element 27 is fixed to a first position 21a of the fixed frame 21. The second buckling element 28 is fixed to a second position 21b of the fixed frame 21. In the present embodiment of the invention, the first buckling element 27 is connected to one end of the fixed frame 21, and the second buckling element 28 is connected to the other end of the fixed frame 21. The rotary component 22 is connected to an object 25 and is pivoted to the fixed frame 21, such that the object 25 and the rotary component 22 are synchronously rotated with respect to the fixed frame 21. The rotary component 22 has a positioning pin 24. The object 25 is in a first positioning state and a second positioning state when the positioning pin 24 is buckled to the first buckling element 27 and the second buckling element 28 respectively. The first positioning state and a second positioning state are respectively a horizontal displaying state and a vertical displaying state. When the object 25 is a display monitor, the positioning mechanism 20 and the object 25 form a display device 29.
In the present embodiment of the invention, the rotary component 22 is connected to the object 25 via a number of screws 26, and is further pivoted to the fixed frame 21 via the rotary shaft 23s, such that the object 25 and the rotary component 22 are synchronously rotated with respect to the fixed frame 21 around the rotary shaft 23. The first buckling element 27 has flange 27a. The second buckling element 28 has flange 28a. When the first buckling element 27 clamps and fixes the positioning pin 24 through the elasticity of the material and the flange 27a, the object 25 is at a first positioning state. When the second buckling element 28 clamps and fixes the positioning pin 24 through the elasticity of the material and the flange 28a, the object 25 is at a second positioning state.
Referring to FIG. 2A˜2B. The force required for rotating the object 25 changes as the material elasticity of the first buckling element 27 and the second buckling element 28 changs. When the material elasticity of the first buckling element 27 and the second buckling element 28 increases, the force of clamping the positioning pin 24 increase accordingly, such that more force is required for rotating the object 25. The first buckling element 27, the second buckling element 28 and the fixed frame 21 are preferably formed in one piece. Besides, when the object 25 rotates, the first buckling element 27, the second buckling element 28 and the positioning pin 24 are located on a circular locus R1 that is centered around the rotary shaft 23. The fixed frame 21 is further connected to a linking element 21c that is synchronously rotated with the fixed frame 21. The linking element 21c is connected to a supporting base (not illustrated in the diagram) for supporting the object 25 on a plane.
In the first embodiment, the object 25 is exemplified by a display monitor. Further, other than screwing with several screws 26, the rotary component 22 can also be buckled, engaged or adhered to the object 25. Besides, the first buckling element 27 and the second buckling element 28 are an E-type rings or C-type rings for example. The clamping openings of the first buckling element 27 and the second buckling element 28 are slightly face-to-face. Furthermore, the force for clamping the positioning pin 24 by the first buckling element 27 or the second buckling element 28 changes as the material elasticity of the first buckling element 27 or the second buckling element 28 changes, such that the force required for rotating the object 25 also changes accordingly. Besides, the positioning mechanism 20 of the invention is applied in a display device. The display monitor of the display device can be exemplified by a liquid crystal display monitor, an organic light emitting diode display monitor, a plasma display monitor or a cathode ray tube display monitor. When the first buckling element 27 clamps and fixes the positioning pin 24, the display monitor is in a horizontal displaying state. When the second buckling element 28 clamps and fixes the positioning pin 24, the display monitor is in a vertical displaying state.
According to the positioning mechanism and display device using the same disclosed in the first embodiment, the positioning pin is respectively buckled to the first buckling element and the second buckling element for positioning an object, such that the pad used in a pivotal positioning mechanism of a conventional display device is replaced and the mal-positioning of rotation due to the wearing between pads is avoided. Consequently, when the display monitor rotates the problems of inaccurate positioning and angle tilting are avoided, and the display monitor can be securely in the first positioning state and the second positioning state.
Second Embodiment
Referring to FIG. 3, a perspective of a positioning mechanism according to a second embodiment of the invention is shown. The positioning mechanism 30 comprises a fixed frame 31, a first buckling element 37, a second buckling element 38 and a rotary component 32. The first buckling element 37 is disposed to a first position 31a of the fixed frame 31. The second buckling element 38 is disposed to a second position 31b of the fixed frame 31. The rotary component 32 is connected to an object 35 and is pivoted to the fixed frame 31, such that the object 35 and the rotary component 32 are synchronously rotated with respect to the fixed frame 31. The rotary component 32 has a positioning pin 34. Compared with the first embodiment, the fixed frame 31 of the present embodiment of the invention further has a limiting slot 39 for the positioning pin 34 to pass through, such that the positioning pin 34 is moved within the limiting slot 39. The first buckling element 37, the second buckling element 38, the limiting slot 39 and the positioning pin 34 are located on a circular locus R2, wherein circular locus R2 is centered around the rotary shaft 33. The first position 31a of the fixed frame 31 is one end of the limiting slot 39. The second position 31b of the fixed frame 31 is the other end of the limiting slot 39. The object is in a first positioning state and a second positioning state when the positioning pin 34 is buckled to the first buckling element 37 and the second buckling element 38. When the object 35 is a display monitor, the positioning mechanism 30 and the object 35 form a display device 39.
In the present embodiment of the invention the first buckling element 37 is an E-type ring or a C-type ring. The second buckling element 38 is an E-type ring or a C-type ring. Besides, the first buckling element 37, the second buckling element 38 and the fixed frame 31 can be preferably formed in one piece.
Third Embodiment
Referring to FIG. 4, a perspective of a positioning mechanism according to a third embodiment of the invention is shown. The positioning mechanism 40 comprises a fixed frame 41, a first buckling element 47, a second buckling element 48 and a rotary component 42. The rotary component 42 is connected to an object 45 and is pivoted to the fixed frame 41, such that the object 45 and the rotary component 42 are synchronously rotated with respect to the fixed frame 41. The rotary component 42 has a positioning pin 44. The fixed frame 41 has a limiting slot 49 for the positioning pin 44 to pass through, such that the positioning pin 44 is moved within the limiting slot 49. Compared with the positioning mechanism of the second embodiment, the first buckling element 47 and the second buckling element 48 are respectively formed at the two ends of the limiting slot 49, that is, the first buckling element 47, the second buckling element 48 and the fixed frame 41 are preferably formed in one piece. The object is in a first positioning state and a second positioning state when the positioning pin 44 is buckled to the first buckling element 47 and the second buckling element 48 respectively. When the object 45 is a display monitor, the positioning mechanism 40 and the object 45 form a display device 49.
According to the positioning mechanism and the display device using the same disclosed in the above preferred embodiments of the invention, the positioning pin is respectively buckled to the first buckling element and the second buckling element for positioning an object, such that the pads used in a pivotal positioning mechanism of a conventional display device is replaced and the mal-positioning of rotation due to the wearing between pads is avoided. Consequently, the display monitor is fixed securely, and the problems of inaccurate positioning and angle tilting that occur when the display monitor rotates are avoided.
While the invention has been described by way of example and in terms of preferred embodiments, it is to be understood that the invention is not limited thereto. On the contrary, it is intended to cover various modifications and similar arrangements and procedures, and the scope of the appended claims therefore should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements and procedures.
Patent Application
20070275571
