US 7,548,769 B2Granted

Sliding device

AssigneeCheng Uei Precision Industry Co., Ltd.

InventorsFeng-Chi Lee, Chih-Hung Chan, Shu-Fang Li

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Abstract

A sliding device configured in a portable electrical apparatus includes a main base fixed to a main housing of the portable electrical apparatus, a sliding base fixed to a sub-housing of the portable electrical apparatus, a guiding portion coupled to the main base and the sliding base for limiting a sliding range and an elastic module arranged between the main base and the sliding base. The elastic module includes a first rotator located on the sliding base, a second rotator located on the main base, a sliding bar passed through a compression spring and arranged between the first rotator and the second rotator. When the sub-housing slides on the main housing to achieve a critical level, the sliding force accumulated in the compression spring is maximized. Therefore the sub-housing is advanced by sliding force released from the compression spring.

Claims7

Dependent claims

A sliding device, comprising:

a main base coupled to a main housing;
a sliding base coupled to a sub-housing;
a guiding portion coupled to said main base and said sliding base for determining a sliding range of said sliding base sliding on said main base;
and
an elastic module arranged between said main base and said sliding base for providing sliding force, a first rotator and a second rotator coupled to said sliding base and said main base respectively, a sliding bar arranged between said first rotator and said second rotator, one end of said sliding bar fixed to said first rotator, other end of said sliding bar engaged with said second rotator, a compression spring surrounding said sliding bar, wherein
while said sub-housing sliding on said main housing to achieve a critical level, a distance between said first rotator and said second rotator is shortest and said sliding force accumulated in said compression spring is maximized.

3 more elements

Dependencies are inferred from the claim text.