Source: http://www.google.fr/patents/US20040118984
Timestamp: 2017-11-22 20:45:14
Document Index: 625595578

Matched Legal Cases: ['art 3', 'art 5', 'art 3', 'art 5', 'art 21', 'art 21', 'art 5', 'art 22', 'art 22', 'arts 43', 'art 44', 'art 44']

Brevet US20040118984 - Display apparatus - Google Brevets
A display apparatus includes a base part, a main body, a slider connected to the main body, a guide rail to stand on the base part, and to guide the slider to slide thereon to move the main body up and down. The display apparatus also includes at least one spiral spring having an elasticity enough to...http://www.google.fr/patents/US20040118984?utm_source=gb-gplus-shareBrevet US20040118984 - Display apparatus
Numéro de publication US20040118984 A1
Numéro de demande US 10/671,863
Autre référence de publication US7424991
Numéro de publication 10671863, 671863, US 2004/0118984 A1, US 2004/118984 A1, US 20040118984 A1, US 20040118984A1, US 2004118984 A1, US 2004118984A1, US-A1-20040118984, US-A1-2004118984, US2004/0118984A1, US2004/118984A1, US20040118984 A1, US20040118984A1, US2004118984 A1, US2004118984A1
Inventeurs Ju-Hwan Kim, Dae-hyoun Byoun, Dong-hyug Kim
Citations de brevets (98), Référencé par (120), Classifications (20), Événements juridiques (4)
US 20040118984 A1
[0022]FIG. 1 is a rear perspective view showing an elevating state of a slider in a display apparatus, according to an embodiment of the present invention;
[0023]FIG. 2 is an exploded perspective view showing a main portion of the display apparatus shown in FIG. 1;
[0024]FIG. 3 is a rear perspective view showing a lowering state of the slider in the display apparatus shown in FIG. 3;
[0025]FIG. 4 is a front elevational view showing a lowering state of the slider in the display apparatus shown in FIG. 3; and
[0026]FIG. 5 is a sectional view of FIG. 3 taken along V-V.
As shown in FIGS. 1 through 5, a display apparatus 1 according to the present invention includes a main body (not shown) to display pictures thereon, a base part 3 to sit on a mounting space (e.g., a table), a stand part 5 to stand on the base part 3, and a connection assembly 7 to connect the stand part 5 to a body bracket 6 fixedly coupled to a rear face of the main body.
To a lower part of the connection assembly 7 is coupled a supporting bracket 20 to support the connection assembly 7. The supporting bracket 20 has a supporting part 21 to support the connection assembly 7 and an extended part extended downward from the supporting part 21.
A pair of guide assemblies forming the stand part 5 are respectively displaced on both sides of an extended part 22.
Each of the guide assemblies includes a guide rail 11, and a slider 12 slidingly moved along the guide rail 11. A guide bracket 30 is displaced between the guide rail 11 and the supporting bracket 20.
The guide rail 11 is approximately shaped like a “U” when viewing a section of an inside thereof in which a ball bearing unit 14 is installed along a lengthwise direction. The ball bearing unit 14 includes a supporting pin 15 displaced in the guide rail 11 along the lengthwise direction, and a rolling ball 16 coupled to the supporting pin 15 in a rotatable manner to contact the slider 12 (to be described later) by a rolling motion.
Meanwhile, the extended part 22 is displaced over a space provided between a pair of sliders 12 which are separated from each other, and the spring supporting block 13 is displaced below the space.
An elasticity of the first and second spiral springs 41 and 42 is set to be equal to a weight of the main body. Preferably, the first and second spiral springs 41 and 42 may be formed of stainless steel with a thickness of 0.2 mm to 0.35 mm.
That is, the first and second spiral springs 41 and 42 are extended (see FIGS. 3 and 4). Conversely, the wound parts 43 of the first and second spiral springs 41 and 42 are wound along the circumferences of the first and second spring guides 53 and 54 by the rotation of the first and second rotational shafts 51 and 52 when the sliders 12 and the spring supporting block 13 move upward. In response thereto, the coupling part 44 of the first and second spiral springs 41 and 42 move upward along with the spring supporting block 13. That is, the first and second spiral springs 41 and 42 are contracted (see FIG. 1).
It is assumed that an initial status of the display apparatus according to the present invention is as illustrated in FIG. 1. Thus, if a user holds the main body (not shown) and moves it downward so as to lower a position of the main body, the sliders 12 move downward along the guide rails 11 to contact the rolling ball 16 by a rolling motion. At this time, since the spring supporting block 13 is coupled to the sliders 12, the spring supporting block 13 moves downward in response to the downward movement of the sliders 12, and the coupling part 44 of the first and second spiral springs 41 and 42 coupled to the spring supporting block 13 moving downward, also moves downward.
The above operation is done under the condition that the weight of the main body moves downward beyond the elasticity of the first and second spiral springs 41 and 42. If the user suspends the downward movement of the main body when the main body reaches a height that the user desires to position it while the main body is in downward movement, the main body will not move downward any more. That is, since the weight of the main body and the elasticity of the first and second spiral springs 41 and 42 are balanced, the movement of the main body stops (see FIGS. 3 and 4).
If the user holds the main body and moves it upward so as to raise the position of the main body, the balance between the weight of the main body and the elasticity of the first and second spiral springs 41 and 42 is not stable, and therefore, the main body moves upward in the same operation as described above. If the user suspends the upward movement of the main body when the main body reaches the height that the user desires to position it, the main body will not move upward any more since the weight of the main body and the elasticity of the first and second spiral springs 41 and 42 are balanced (see FIG. 1).
In the display apparatus 1 according to the present invention, the sliders 12 smoothly move along the guide rails 11 via the ball bearing unit 14, and easily adjust the position of the main body with the first and second spiral springs 41 and 42.
In the above-described embodiment, the first and second spiral springs 41 and 42 are provided. However, one spiral spring may be installed with the elasticity of the one spiral spring being set equal to the weight of the main body.
As described above, according to the present invention, there is provided a display apparatus having an improved structure of conveniently adjusting a position of the main body because the slider may be slid smoothly along the guide bracket.
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Classification aux États-Unis 248/149, 248/917
Classification internationale G06F1/16, F16M11/14, F16M11/28, F16C11/06
Classification coopérative F16C11/0619, F16M11/30, F16M11/105, F16M2200/044, F16M11/2021, F16M2200/048, Y10S248/917, Y10S248/919
Classification européenne F16M11/20A2, F16M11/30, F16M11/10A, F16M11/14, F16M11/28, F16C11/06C