Abstract: A key button mechanism includes a retaining board, a sliding board, a key button and a stopping member. The sliding board is slidably mounted to the retaining board. The sliding board is capable of sliding between a first configuration and a second configuration. The key button is fixed to the sliding board so the key button can be slid relative to the retaining board. The stopping member is located between the retaining board and the sliding board. The stopping member, which can be overcome with fingernail pressure, holds the sliding board in either the first configuration or the second configuration.

Abstract: An electronic device includes a housing, an external interface assembly, and a cover mechanism. The cover mechanism is used for either covering and protecting connectors of the external interface assembly, or exposing out the external interface assembly. Accordingly, the cover mechanism has at least three positions, and can move between a locked position, a partially released position, and a completely released position.

Abstract: A key button mechanism includes a retaining board, a sliding board, a key button and a stopping member. The sliding board is slidably mounted to the retaining board. The sliding board is capable of sliding between a first configuration and a second configuration. The key button is fixed to the sliding board so the key button can be slid relative to the retaining board. The stopping member is located between the retaining board and the sliding board. The stopping member, which can be overcome with fingernail pressure, holds the sliding board in either the first configuration or the second configuration.

Abstract: A sliding mechanism used in a portable electronic device is described. The sliding mechanism includes a body section, a cover section, a rolling disk and a coil spring. The rolling disk is fixed to the cover section. A center of the coil spring is fixed to a center of the rolling disk. An end of the coil spring is fixed to a periphery of the rolling disk. When the rolling disk rotates relative to the body section, the coil spring generates a force towards or against the sliding direction of the cover section.

Abstract: A protective cover mechanism for a port of electronic device, includes a latching element and a cover element. The latching element has a main body and a slit defined through the main body. The cover element has a cover body, a follower protruding from the cover body slidably extending into the slit of the main body, and a stopping portion protruding from a distal end of the follower preventing the follower and the main body from separating.

Abstract: A hinge assembly (100) includes a cam (13), a follower (14), a first spring (12), a press rod (17), a control member (18) and a second spring (16). The cam has a cam surface. The follower has a latching cam surface engaging with the cam surface. The first spring provides an elastic force causing the cam surface of the cam and the latching cam surface of the follower to abut each other. The press rod includes a threaded portion (173). The control member threadedly engages with the threaded portion of the press rod. The second spring provides an elastic force to return the control member. When the press rod is pushed, the control member rotates to cause the follower to rotate whereby the cam surface of the cam rotates relative to the latching cam surface of the follower.

Abstract: A battery cover mechanism includes a housing, a battery cover and a releasing assembly. The housing has a first surface and at least one latching hook disposed thereon. The battery cover defines a notch therethrough corresponding to the latching hook of the housing and is detachably assembled with the housing by the releasing assembly. The releasing assembly includes a fixing base, an elastic piece and a releasing piece. The fixing base is mounted on the inner side surface of the battery cover and there form an assembling space together with the notch. The elastic piece is mounted on the fixing base and the releasing piece is slidably mounted on the fixing base. The releasing piece is slidably mounted on the fixing base to slidably resist the elastic piece to make the elastic piece release from the latching hook.

Abstract: A protective cover mechanism for a port of electronic device, includes a latching element and a cover element. The latching element has a main body and a slit defined through the main body. The cover element has a cover body, a follower protruding from the cover body slidably extending into the slit of the main body, and a stopping portion protruding from a distal end of the follower preventing the follower and the main body from separating.

Abstract: A sliding mechanism includes a main board, a sliding board, two racks, a gear, a connecting member and a winding coil. The main board defines a guiding slot. The two racks are positioned at two opposite sides of the main board. The gear matches each of the first and second racks. The sliding board is slidable along the guiding slot by the connecting member. The winding coil, the winding coil is tightened when the sliding board is pushed toward or away from the main board, and rebounds to its original shape to cause the sliding board to automatically further slide relative to the main board when the gear is detached from one rack and matches another rack.

Abstract: A battery cover latching mechanism is provided. The battery cover latching mechanism includes a housing, a cover member and a button assembly arranged on the housing. The button assembly includes a pressing member and an elastic member. The pressing member includes a locking block. The cover member includes a locking member. The locking block is detachably interlocked to the locking member. The elastic member is used to push the cover member away from the housing.

Abstract: A sliding mechanism used in a portable electronic device is described. The sliding mechanism includes a body section, a cover section, a rolling disk and a coil spring. The rolling disk is fixed to the cover section. A center of the coil spring is fixed to a center of the rolling disk. An end of the coil spring is fixed to a periphery of the rolling disk. When the rolling disk rotates relative to the body section, the coil spring generates a force towards or against the sliding direction of the cover section.

Abstract: A hinge assembly (100) includes a cam (13), a follower (14), a first spring (12), a press rod (17), a control member (18) and a second spring (16). The cam has a cam surface. The follower has a latching cam surface engaging with the cam surface. The first spring provides an elastic force causing the cam surface of the cam and the latching cam surface of the follower to abut each other. The press rod includes a threaded portion (173). The control member threadedly engages with the threaded portion of the press rod. The second spring provides an elastic force to return the control member. When the press rod is pushed, the control member rotates to cause the follower to rotate whereby the cam surface of the cam rotates relative to the latching cam surface of the follower.

Abstract: A battery cover mechanism includes a housing, a battery cover and a releasing assembly. The housing has a first surface and at least one latching hook disposed thereon. The battery cover defines a notch therethrough corresponding to the latching hook of the housing and is detachably assembled with the housing by the releasing assembly. The releasing assembly includes a fixing base, an elastic piece and a releasing piece. The fixing base is mounted on the inner side surface of the battery cover and there form an assembling space together with the notch. The elastic piece is mounted on the fixing base and the releasing piece is slidably mounted on the fixing base. The releasing piece is slidably mounted on the fixing base to slidably resist the elastic piece to make the elastic piece release from the latching hook.

Abstract: A sliding mechanism includes a main board, a sliding board, two racks, a gear, a connecting member and a winding coil. The main board defines a guiding slot. The two racks are positioned at two opposite sides of the main board. The gear matches each of the first and second racks. The sliding board is slidable along the guiding slot by the connecting member. The winding coil, the winding coil is tightened when the sliding board is pushed toward or away from the main board, and rebounds to its original shape to cause the sliding board to automatically further slide relative to the main board when the gear is detached from one rack and matches another rack.