1. Technical Field
The present disclosure relates to electronic devices, and particularly to an electronic device with a leg which is adjustable to select a desirable viewing angle.
2. Description of Related Art
Some electronic devices are equipped with a support such as a leg that swivels out from the device to support the device on a flat surface. However, most current legs are not adjustable and the leg folds out at a predetermined angle with the electronic device. As a result, the viewing angle for different users cannot be adjusted.
Therefore, it is desirable to provide an electronic device having an adjustable leg which can overcome the above-mentioned problems.
The components of the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the embodiment of an electronic device having an adjustable leg. Moreover, in the drawings, like reference numerals designate corresponding parts throughout several views.
Embodiments of the present disclosure will now be described in detail with reference to the drawings.
Referring to
Referring to
The rear cover 12 defines a recessed portion to form a substantially rectangular receiving portion 121. The receiving portion 121 is used for receiving the leg 20. The depth of the receiving portion 121 may be substantially equal to the thickness of the leg 20, therefore the outer surface of the leg 20 may be coplanar to the outer surface 120 of the rear cover 12 when the leg 20 is completely received within the receiving portion 121. The receiving portion 121 defines a hole 123 at one end of the bottom thereof. The receiving portion 121 further defines a pair of pivot holes 122 which are coaxially positioned at two opposite sides thereof. The hole 123 is located between the two pivot holes 122.
The rear cover 12 further includes an elastic restriction member 125 which may be an elastic C-shaped sheet. The elastic restriction member 125 includes a fixing portion 126, a connecting portion 127, and a restriction portion 128. The fixing portion 126 protrudes from the inner surface 124 and is adjacent to the hole 123. The connecting portion 127 perpendicularly extends from the fixing portion 126 and faces the hole 123. The restriction portion 128 is formed on the end of the connecting portion 127 and extends into the hole 123. In this embodiment, the restriction portion 128 is a hook.
The leg 20 includes a first end 21, a second end 22 opposite to the first end 21, a wheel member 25, and a brake portion 27. In this embodiment, the leg 20 is a substantially rectangular plate. In other embodiments, the leg 20 can be any other shaped.
The first end 21 of the leg 20 includes two opposite sides (not labeled), and a pivot 23 protrudes from each of the two opposite sides. The first end 21 is received in the receiving portion 121. The two pivots 23 are respectively received in the two pivot holes 122. Thus, the leg 20 is pivotably connected to the rear cover 12, and is operable to be received in the receiving portion 121. The two pivots 23 act as a shaft of the leg 20.
The wheel member 25 is disposed on the first end 21 of the leg 20 and is coaxial with the shaft of the leg 20. The wheel member 25 is gear-shaped, and includes a plurality of cogs 250 radially extending therefrom. The plurality of cogs 250 is substantially aligned in an arc and is operable to be received in the hole 123. A plurality of grooves 251 is defined between each two adjacent cogs 250. The grooves 251 are engageable with the restriction portion 128. When the restriction portion 128 is engaged with one of the grooves 251, the elastic restriction member 125 is fixed by the restriction portion 128, and the restriction portion 128 prevents the wheel member 25 moving independently of the restriction portion 128. Thus, the main body 10 is selectively supported by the leg 20 in an open state at any one of several predetermined angles θ defined by the leg 20 and the main body 10.
In the open state, the leg 20 can be rotated to any one of the predetermined angles θ. When the leg 20 is rotated, the corresponding cog 250 applies a rotational force on the restriction portion 128. Because the elastic restriction member 125 is fixed to the rear cover 12, the rotational force deforms the elastic restriction member 125 and the leg 20 rotates. Then the restriction portion 128 is engaged with another groove 251.
The brake portion 27 protrudes from the wheel member 25 and is on the side of the wheel member 25 that is opposite to the plurality of cogs 250. The brake portion 27 is outside of the receiving portion 121 and is used for limiting the rotation range of the leg 20. When the leg 20 rotates in a counter-clockwise direction, the limit of the rotated angle is at a maximum when the brake portion 27 abuts the rear cover 12 (see
When the leg 20 rotates in clockwise direction, the leg 20 can be received in the receiving portion 121 in a closed state (see
In some embodiments, the wheel member 25 and the elastic restriction member 125 may be together defined as an adjusting device for adjusting the angle between the leg 20 and the main body 10. The adjusting device includes a first member and a second member which is rotatably engaged with the first member. The first member as the wheel member 25 defines a plurality of grooves 251. The second member such as the elastic restriction member 125 comprises a restriction portion 128 corresponding to the plurality of grooves 251. The restriction portion 128 is operable to be selectively engaged with any one of the plurality of grooves 251 of the first member. In other embodiments, the first member can be the elastic restriction member 125 which includes the restriction portion 128, and the second member can be the wheel member 25 which defines the plurality of grooves 251.
While various exemplary and preferred embodiments have been described, it is to be understood that the disclosure is not limited thereto. To the contrary, various modifications and similar arrangements (as would be apparent to those skilled in the art) are intended to also be covered. Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.
Number | Date | Country | Kind |
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200910303047.4 | Jun 2009 | CN | national |