Source: http://www.google.com/patents/US20040118984?dq=5,987,610
Timestamp: 2016-02-07 04:36:38
Document Index: 522122745

Matched Legal Cases: ['art 3', 'art 5', 'art 3', 'art 5', 'art 21', 'art 21', 'art 5', 'art 22', 'art 2', 'art 2', 'art 3', 'art 22', 'art 22', 'art 43', 'art 44', 'art 43', 'art 31', 'art 32', 'arts 33', 'arts 33', 'arts 31', 'arts 31', 'art 44', 'art 43', 'art 44', 'arts 43', 'art 44', 'art 44', 'art 44', 'arts 43', 'art 44']

Patent US20040118984 - Display apparatus - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA 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.com/patents/US20040118984?utm_source=gb-gplus-sharePatent US20040118984 - Display apparatusAdvanced Patent SearchPublication numberUS20040118984 A1Publication typeApplicationApplication numberUS 10/671,863Publication dateJun 24, 2004Filing dateSep 29, 2003Priority dateSep 27, 2002Also published asUS7424991Publication number10671863, 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, US2004118984A1InventorsJu-Hwan Kim, Dae-hyoun Byoun, Dong-hyug KimOriginal AssigneeSamsung Electronics Co., Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (98), Referenced by (110), Classifications (22), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetDisplay apparatus
US 20040118984 A1Abstract
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 support weight of the main body to extend and contract in response to a movement of the slider. Accordingly, the display apparatus has an improved structure of conveniently adjusting a position of the main body due to the slider being slid smoothly along the guide bracket. Images(6) Claims(38)
BRIEF DESCRIPTION OF THE DRAWINGS [0021] The above and/or other aspects and advantages of the present invention will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompany drawings of which: [0022] [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] [0023]FIG. 2 is an exploded perspective view showing a main portion of the display apparatus shown in FIG. 1; [0024] [0024]FIG. 3 is a rear perspective view showing a lowering state of the slider in the display apparatus shown in FIG. 3; [0025] [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] [0026]FIG. 5 is a sectional view of FIG. 3 taken along V-V.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0027] Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout. The embodiments are described below in order to explain the present invention by referring to the figures. [0028] 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. [0029] 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. [0030] A pair of guide assemblies forming the stand part 5 are respectively displaced on both sides of an extended part 22. [0031] 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. [0032] 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. [0033] A bottom of the guide rail 11 is coupled to a stand supporting part 2 by screws 38. The stand supporting part 2 is installed on a top face of the base part 3 providing an accommodating space, and a top of the guide rail 11 is coupled to the guide bracket 30. The guide rail 11 is provided in a pair and is disposed in parallel to each other having a predetermined space therebetween. [0034] A top of the slider 12 is coupled to the extended part 22 and a bottom of the slider 12 is coupled to a spring supporting block 13 to be described later. The slider 12 smoothly moves along the guide rail 11 as external wall faces of both sides of the slider 12 are contacted by a rolling motion with the rolling ball 16 within the guide rail 11. For example, the slider 12 may be drawn out from the guide rail 11 to a predetermined length by an upward movement along the guide rail 11. [0035] 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. [0036] The sliders 12 are coupled to both sides of the spring supporting block 13. First and second spiral springs 41 and 42, to be described later, are respectively coupled to a front face and a rear face of the spring supporting block 13 by screws 39. By this coupling, if the sliders 12 perform a sliding motion, the spring supporting block 13 coupled to the sliders 12 is moved together with the sliders 12. Since the first and second spiral springs 41 and 42 are coupled to the spring supporting block 13 moving together with the sliders 12, the first and second spiral springs 41 and 42 are extended and contracted according to the movement of the spring supporting block 13 coupled to the sliders 12. [0037] 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. [0038] The first and second spiral springs 41 and 42 include a wound part 43 spirally wound and mounted to the guide bracket 30, and a coupling part 44 extended from the wound part 43 and coupled to the spring supporting block 13. [0039] A first accommodating part 31 on which the first spiral spring 41 is installed is provided on an inner front face of the guide bracket 30, and a second accommodating part 32 on which the second spiral spring 42 is installed is provided on an inner rear face of the guide bracket 30. Third and fourth accommodating parts 33 and 34 to accommodate the pair of guide assemblies (i.e., the guide rails 11 and the sliders 12) are respectively provided on both sides of the guide bracket 30. [0040] The tops of the guide rails 11 of the guide assemblies are inserted into the third and fourth accommodating parts 33 and 34 respectively and are fixed by screws 37. [0041] On the first and second accommodating parts 31 and 32 are respectively provided a supporting unit to allow extension and contraction, that is, to allow the first and second spiral springs 41 and 42 to be unwound and wound. [0042] The supporting unit includes first and second rotational shafts 51 and 52 transversely on the first and second accommodating parts 31 and 32, respectively, and first and second spring guides 53 and 54 made of plastic material, rotatably installed on the first and second rotational shafts 51 and 52, respectively, on which the first and second spring springs 41 and 42 are wound. Since the coupling part 44 of the first and second spiral springs 41 and 42 are coupled to the spring supporting block 13 connected to the sliders 12, the wound part 43 of the first and second spiral springs 41 and 42 are unwound along circumferences of the first and second spring guides 53 and 54 by a rotation of the first and second rotational shafts 51 and 52 when the sliders 12 and the spring supporting block 13 move downward. In response thereto, the coupling part 44 of the first and second spiral springs 41 and 42 moves downward along with the spring supporting block 13. [0043] 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). [0044] In light of the above configuration, an elevating process of the sliders 12 relative to the guide rails 11 will be described below. [0045] 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. [0046] The downward movement of the coupling part 44 of the first and second spiral springs 41 and 42 is possible because the spiral wound parts 43 of the first and second spiral springs 41 and 42 are respectively extended to be unwound along the circumferences of the first and second spring guides 53 and 54 in response to the downward movement of the coupling part 44 of the first and second spiral springs 41 and 42. [0047] 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). [0048] 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). [0049] 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. [0050] 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. [0051] In the above-described embodiment, the number of spiral springs installed is two, that is, the first and second spiral springs 41 and 42. However, four spiral springs may be installed in the display apparatus according to the present invention. It should be noted that the number of spiral springs which may be installed in the display apparatus according to the present invention is not limited to two or four, but may be determined optionally by display apparatus makers. [0052] 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. [0053] Although a few embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents. 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