Abstract: An exemplary screw protection cover is provided, which includes a cover head, a cover body and a positioning piece. The cover body protrudes outward axially from one end thereof and is coaxially disposed with the cover head. The positioning piece protrudes outward from the peripheral edge of the cover head toward the cover body and is at the same side with the cover body. The positioning piece includes a stop catch disposed at the distal end thereof away from the cover head. The invention also discloses a shell assembly using the screw protection cover.

Abstract: The chip card holder includes a body member, a card receiving space formed on the body member and a releasing piece. The card receiving space has an opening to insert a chip card along a direction perpendicular to the longitudinal direction of the card receiving space. The releasing piece is slidably mounted on the body member along the longitudinal direction and is configured for either exposing the opening to insert the chip card or locking the chip card in the card receiving space.

Abstract: A hinge assembly (100) for a foldable electronic device (200) includes a shaft (40), a first follower (33) attached on one end of the shaft, a first cam (34) rotatably attached on the shaft, a resilient member (50) having one end abutting the first cam, a second cam (63) rotatably attached on the shaft and abutting the other end of the resilient member, a second follower (62) attached on the shaft, and a button (70) attached on the other end of the shaft and abutting the second follower. The first follower is rotating with the shaft and has a first follower surface (332). The first cam has a first cam surface (342) engaging with the first follower surface. The second cam has a second cam surface (632). The second follower has a second follower surface (624) engaging with the second cam surface.

Abstract: A chip card holder includes a body member, a card receiving space formed on the body member and a releasing piece. The releasing piece is slidablely mounted on the body member along a direction perpendicular to the longitudinal direction of the card receiving space and is slid to be in front of the opening of the card receiving space to lock the chip card in the card receiving space or to expose the opening of the card receiving space to unlock the chip card.

Abstract: An exemplary screw protection cover is provided, which includes a cover head, a cover body and a positioning piece. The cover body protrudes outward axially from one end thereof and is coaxially disposed with the cover head. The positioning piece protrudes outward from the peripheral edge of the cover head toward the cover body and is at the same side with the cover body. The positioning piece includes a stop catch disposed at the distal end thereof away from the cover head. The invention also discloses a shell assembly using the screw protection cover.

Abstract: The chip card holder includes a body member, a card receiving space formed on the body member and a releasing piece. The card receiving space has an opening to insert a chip card along a direction perpendicular to the longitudinal direction of the card receiving space. The releasing piece is slidablely mounted on the body member along the longitudinal direction and is configured for either exposing the opening to insert the chip card or locking the chip card in the card receiving space.

Abstract: A chip card holder includes a body member, a card receiving space formed on the body member and a releasing piece. The releasing piece is slidablely mounted on the body member along a direction perpendicular to the longitudinal direction of the card receiving space and is slid to be in front of the opening of the card receiving space to lock the chip card in the card receiving space or to expose the opening of the card receiving space to unlock the chip card.

Abstract: A hinge assembly (100) for a foldable electronic device (200) includes a shaft (40), a first follower (33) attached on one end of the shaft, a first cam (34) rotatably attached on the shaft, a resilient member (50) having one end abutting the first cam, a second cam (63) rotatably attached on the shaft and abutting the other end of the resilient member, a second follower (62) attached on the shaft, and a button (70) attached on the other end of the shaft and abutting the second follower. The first follower is rotating with the shaft and has a first follower surface (332). The first cam has a first cam surface (342) engaging with the first follower surface. The second cam has a second cam surface (632). The second follower has a second follower surface (624) engaging with the second cam surface.

Abstract: A hinge assembly (100) includes a main shaft (50), a fixing seat (80), a follower (44), a cam (42) and a first elastic element (30). The fixing seat is fixed with the main shaft. The follower is placed around the shaft, and the fixing seat selectively locks with the follower. The cam is placed around the shaft, and engages with the follower. The first elastic element provides an elastic force to make the cam and the follower resist each other and provides a torsional force to make the cam and the follower rotate together.

Abstract: An insert molding article (20) includes a plastic element (24) and an inserting element (22). The inserting element includes a main portion (222) and an inserting portion (224) formed on and extending from the main portion. The inserting portion is enclosed, encapsulated, and secured in the plastic element. By being molded in such a manner, the plastic element frictionally engages at least two sides of the inserting portion, thereby resulting in a mechanically stable connection between the plastic element and the inserting portion.

Abstract: A housing mechanism (8) includes a housing (1) and a defending element (3). The housing has a cavity (11), thereby defining a sidewall. The sidewall of the housing defines an opening (2) therethrough. The opening communicates with the cavity. The defending element is located at the opening, and includes a door pivotable for covering or uncovering the opening.