Lock mechanism and box-shaped apparatus thereof
AssigneeWistron Corporation
InventorZhong-hui Mao
Life of this patent
Estimating the term…
Abstract
A lock mechanism includes a driving arm having an arm portion and a fixing portion and a lock rod having first and second ends and a pivot portion. The pivot portion is pivoted to one of a cover and a casing. The fixing portion is disposed on the one of the cover and the casing so as to make a free end of the arm portion interfere with an interference portion of the lock rod. The arm portion swings to a first position or a second position when receiving force. When the first end or the second end is pressed, the interference portion drives the free end to make the arm portion swing to the first or second position, so as to make the lock rod move to a locking position for fixing the cover on the casing or a releasing position for releasing the cover from the casing.
Claims26
A lock mechanism for detachably fixing a cover on a side of a casing, the lock mechanism comprising:
- a lock rod having a first end, a second end and a pivot portion between the first end and the second end, the lock rod being pivoted to one of the cover and the casing through the pivot portion so that the first end and the second end could perform a lever movement relative to the pivot portion, and the first end having an interference portion;
- and
- a driving arm connected to a side of the lock rod and having a fixing portion and an arm portion connected to the fixing portion, the driving arm being disposed on the one of the cover and the casing through the fixing portion so as to make a free end of the arm portion interfere with the interference portion of the lock rod, and the arm portion swinging to a first swing position when receiving force in a first direction and the arm portion stopping at the first swing position when the force in the first direction is released, and the arm portion swinging to a second swing position when receiving force in a second direction opposite to the first direction and the arm portion stopping at the second swing position when the force in the second direction is released, a curvature of a bending shape of the arm portion at the first swing position being opposite to a curvature of a bending shape of the arm portion at the second swing position;
- wherein the interference portion drives the free end of the arm portion to make the arm portion swing to the first swing position when the first end is pressed and the second swing position when the second end is pressed, so as to make the lock rod move to a locking position for fixing the cover on the casing or move to a releasing position for releasing the cover from the casing.
A box-shaped apparatus comprising:
- a casing;
- a cover engaged with the casing to form a containing space;
- and
- a lock mechanism for detachably fixing the cover on a side of the casing, the lock mechanism comprising:
- a lock rod having a first end, a second end and a pivot portion between the first end and the second end, the lock rod being pivoted to one of the cover and the casing through the pivot portion so that the first end and the second end could perform a lever movement relative to the pivot portion, and the first end having an interference portion;
- and
- a driving arm connected to a side of the lock rod and having a fixing portion and an arm portion connected to the fixing portion, the driving arm being disposed on the one of the cover and the casing through the fixing portion so as to make a free end of the arm portion interfere with the interference portion of the lock rod, and the arm portion swinging to a first swing position when receiving force in a first direction and the arm portion stopping at the first swing position when the force in the first direction is released, and the arm portion swinging to a second swing position when receiving force in a second direction opposite to the first direction and the arm portion stopping at the second swing position when the force in the second direction is released, a curvature of a bending shape of the arm portion at the first swing position being opposite to a curvature of a bending shape of the arm portion at the second swing position;
- wherein the interference portion drives the free end of the arm portion to make the arm portion swing to the first swing position when the first end is pressed and the second swing position when the second end is pressed, so as to make the lock rod move to a locking position for fixing the cover on the casing or move to a releasing position for releasing the cover from the casing.
Dependencies are inferred from the claim text.