BACKGROUND

The invention relates to a hanger for an electronic apparatus, and in particular to a hanger capable of positioning an electronic apparatus in different inclined positions.

As liquid crystal displays (LCD) are light and compact, they are often mounted on walls by hangers. When a LCD is mounted on a wall, it is often inclined at an angle with respect to the wall. For a small LCD, the inclined angle is adjusted manually, and the LCD is positioned by friction. For a large LCD, as the weight is larger than the small LCD, friction is insufficient to position the LCD. When the inclined angle of a large LCD is to be changed, the LCD must be un-mounted from the hanger in advance, the hanger adjusted to a desired angle, and the LCD re-mounted on the hanger again.

SUMMARY

A hanger for an electronic apparatus according to an embodiment of the invention comprises a base secured to a wall, a bracket pivoting on the base, a first link pivoting on the base and comprising a ratchet with a plurality of teeth, and a second link rotatably connecting the first link and the bracket and comprising a stopper. The angle between the bracket and the base is varied by the stopper engaging each tooth of the ratchet.

The bracket rotates between a first position and a second position. In the first position, the bracket overlaps the base, and in the second position, the angle between the bracket and the base is maximized.

The teeth are inclined toward the base, whereby the angle between the bracket and the base is adjustable when the bracket rotates from the first position to the second position and not adjustable when the bracket rotates from the second position to the first position.

The hanger of the invention further comprises a reset plate pivoting on the first link and rotating along with the second link. The reset plate releases the engagement of the stopper and the teeth when the bracket is in the first position, and the stopper re-engages the teeth when the bracket is in the second position.

The reset plate comprises a first portion higher than the teeth and a second portion lower than the teeth. When the bracket is in the first position, the stopper abuts the first portion, thereby releasing the engagement of the stopper and the teeth. When the bracket is in the second position, the stopper abuts the second portion, whereby the stopper re-engages the teeth.

The reset plate further comprises a protrusion between the first and second portions, the protrusion having a first side adjacent to the first portion and a second side adjacent to the second portion. When the bracket is in the first position, the stopper abuts the fist side and thereby abutting the first portion, and when the bracket is in the second position, the stopper abuts the second side and thereby abutting the second portion.

The second link further comprises a bias element biasing the stopper, thereby maintaining engagement of the stopper and the teeth. The bias element is preferably a compression spring.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention can be more fully understood by reading the subsequent detailed description and examples with references made to the accompanying drawings, wherein:

FIG. 1 is a perspective view of an embodiment of a hanger according to the invention;

FIG. 2 is an assembled view of an embodiment of a first link and a second link of the invention;

FIGS. 3a to 3e depict a bracket and a base of the invention at different inclined angles;

FIG. 4 is a schematic view of an embodiment of a reset plate according to the invention;

FIG. 5a is a schematic view showing the first and second links of the invention when the bracket is in the first position;

FIG. 5b is a side view of FIG. 5a;

FIG. 6a is a schematic view showing the first and second links of the invention as the bracket approaches the second position;

FIG. 6b is a side view of FIG. 6a;

FIG. 7a is a schematic view of an embodiment of a panel according to the invention;

FIG. 7b is a schematic view of another embodiment of a panel according to the invention; and

FIG. 7c is a schematic view of another embodiment of a panel according to the invention.

DETAILED DESCRIPTION

Referring to FIG. 1, a hanger 1000 comprises a panel 100, a base 200, a bracket 300, a first link 400, a second link 500 and a joint element 600. The panel 100 is mounted on a wall (not shown). The base 200 is secured to the panel 100. The bracket 300 pivots on the base 200 by a first shaft 20 and is rotatable between a first position and a second position. The first link 400 pivots on the base 200 by a second shaft 40. The second link 500 is rotatably connected to the base 200 and the bracket 300 by a third shaft 60 and a fourth shaft 80 respectively. The joint element 600 has a hole 610, whereby the electronic apparatus connects with the joint element 600. The joint element 600 further has a hook 620, and the bracket 300 has a groove 320. The joint element 600 joins the bracket 300 by the hook 320 engaging the groove 320, whereby the electronic apparatus is mounted on the wall.

Referring to FIG. 2, the first link 400 pivots on the base 200 by the second shaft 40 and pivots on the second link 500 by the third shaft 60. The second link 500 pivots on the bracket 300 by the fourth shaft 80. To clearly describe motion of the first and second link 400 and 500, mention of the base 200 and the bracket 300 is omitted. The first link comprises a ratchet 410, a first tab 416 and a second tab 418. The ratchet 410 comprises a plurality of teeth 412 inclined toward the base 200. The second link 500 comprises a main body 510, a stopper 520 and a bias element (compression spring 530). The stopper 520 is slidably disposed on a groove 512 in the main body 510. The compression spring 530 is disposed between the main body 510 and the stopper 520. The stopper 520 is biased by the compression spring 530 to engage the teeth 412. As the teeth 412 incline toward the base 200, the second link 500 rotates toward the base 200 (counterclockwise in FIG. 2), changing the angle between the first link 400 and the second link 500, and the angle between the bracket 300 and the base 200. As the stopper 520 engages the teeth 412 to prevent the second link 500 from rotating clockwise, the angle between the first and second links 400 and 500 is maintained, that is the angle between the bracket 300 and the base 200 is maintained. The angle can only decrease, not increase.

The bracket 300 pivots on the base 200 and rotates between a first position and a second position. In this embodiment, when the bracket 300 is in the first position, the angle between the bracket 300 and the base 200 is âˆ’5Â°, and when the bracket 300 is in the second position, 20Â°. FIGS. 3a to 3e show the bracket 300 and the base 200, with angles therebetween 20Â°, 15Â°, 10Â°, 5Â° and 0Â° respectively. The inclined angle of the electronic apparatus is adjustable. As the teeth 412 are inclined toward the base 200, when the angle between the bracket 300 and the base 200 returns from 0Â° to 20Â°, a reset plate 700 is employed.

In FIG. 2, the reset plate 700 is disposed between the first link 400 and the second link 500 and pivots on the first link 400 by the third shaft 60. Referring to FIG. 4, the reset plate 700 comprises a first portion 710, a second portion 720 and a protrusion 730. The protrusion 730 has a first side 731 adjacent to the first portion 710 and a second side 732 adjacent to the second portion 720. The first portion 710 is higher than the teeth 412 and the second portion 720 is lower than the teeth 412.

Referring to FIG. 2 again, when the bracket 300 rotates from the second position to the first position, the stopper 520 abuts the second side 732 of the reset plate 700 and abuts the second portion 720, whereby the reset plate 700 rotates along with the second link 500. As the second portion 720 is lower than the teeth 412, engagement of the stopper 520 and teeth 412 is not obstructed by the reset plate 700. As shown in FIGS. 5a and 5b, when the bracket 300 approaches the first position, the edge of the reset plate 700 abuts the first tab 416. At this time, as the second link 500 continues rotating, the stopper 520 moves from the second side 732 to the first side 731 and abuts the first side 731, thereby joining the first portion 710. As the first portion 710 is higher than the teeth 412, the reset plate 700 lifts the stopper 520, thereby releasing engagement of the stopper 520 and the teeth 412. The second link 500 can rotate clockwise to move the bracket 300 from the first position to the second position. Referring to FIGS. 6a and 6b, when the bracket 300 approaches the second position, the edge of the reset plate 700 abuts the second tab 418. At this time, as the second link 500 continues rotating, the stopper 520 moves from the first side 731 to the second side 732 and joins the second portion 720. As the second portion 720 is lower than the teeth 412, the stopper 520 re-engages the teeth 412.

A level can be disposed on the panel 100 to adjust the horizontality of the panel 100. FIGS. 7a to 7c depict various levels disposed on the panel 100. FIG. 7a shows a gravity-type level 110, FIG. 7b a pointer-type level 120 and FIG. 7c a bubble-type level 13.

Although two hangers are secured to the panel 100 in this embodiment, the disclosure is not limited thereto. One or multiple hangers are also applicable.

While the invention has been described by way of example and in terms of preferred embodiment, it is to be understood that the invention is not limited thereto. To the contrary, it is intended to cover various modifications and similar arrangements (as would be apparent to those skilled in the art). Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.