Abstract: A mold such as an injection mold (10, 20) for locating a decorative sheet (30) therein and manufacturing a molded product using the decorative sheet includes a female mold (12) defining a molding recess (122), and a male mold (14) having a core insert (142). The molding recess is partly bounded by a marginal area (146). The core insert includes a main portion (144) and a locating portion (146). When the locating portion is received in the molding recess, the locating portion slidably engages with the marginal area of the molding recess and abuts against the decorative sheet. A method for locating the decorative sheet in a molding cavity of the injection mold is also provided.

Abstract: A hinge assembly (10) for joining a cover section (012) to a body section (014) of a foldable electronic device (01) includes: a button (1); a locking element (2); a main shaft (4); a driving spring (3); a cam (5) including a latching cam surface (54) on one end thereof, and two reverse rotating grooves (56) on another end thereof; a barrel (6) including two latching posts (62) engaging in the grooves; an end shaft (8); and a torsion spring (7) including two end portions attached to the barrel and the end shaft. The button, the locking element and the driving spring are located around one end of the main shaft, and the cam and the barrel are located around another end of the main shaft. When the button is pushed, the hinge assembly fully opens the cover section from body section. This provides a user with convenient one-handed operation.

Abstract: A hinge mechanism includes a shaft having an outer screw thread, a rotating cam, a rotating cam having an inner screw thread, a first elastic element, a sleeve having a latching block, a second elastic element, an anchoring block, and a button having a post. The driven cam defines two symmetrical latching grooves. The anchoring block defines a first hole and a second hole. The shaft extends through the rotating cam, the driven cam, the first elastic element, the sleeve, the second elastic element, and the first hole of the anchoring block. The outer screw thread of the shaft engages with the inner screw thread of the rotating cam. The latching block of the sleeve is slidably received in the latching grooves of the driven cam. The post of the button extends through the second hole of the anchoring block and abuts against an end of the sleeve.

Abstract: A hinge assembly includes a body drive member (1) having an outer screw thread (14), a cover drive member (2), and a locating member (3). The cover drive member has a hole (212), and an inner screw thread (215) therein. Two arms (223) extend from opposite edges of the cover drive member, and a bent portion (227) is formed at a distal end of each arm. The locating member has a projection (32) on an outer periphery thereof, and defines a hole. The body drive member extends through the hole of the cover drive member and the hole of the locating member, thereby integrating the hinge assembly into a complete unit, with the outer screw thread engaging with the inner screw thread, and the bent portion abutting the projection. The hinge assembly exerts reduced force on a foldable electronic device when the foldable electronic device is opened or closed.

Abstract: A hinge assembly includes a body drive member (10) having an outer screw thread (12) on an outer periphery thereof, a cover drive member (20) having a first end surface (28) formed one end thereof, a follower (30) having a second end surface (34) formed on one end thereof, and an elastic element (40) abutting the follower. The cover drive member has an inner screw thread (26) formed in a cavity (22) of the cover drive member. The follower has a central hole (32). The body drive member extends through the cover drive member, the follower and the elastic element, thereby integrating the hinge assembly into a complete unit. The outer screw thread of the body drive member engages with the inner screw thread of the cover drive member, and the first end surface of the cover drive member engaging with the second end surface of the body drive member.

Abstract: A hinge assembly includes a central shaft (20), including an outer screw thread (221); a turning element (30), including a central hole (322) and a holding pin (314), an inner screw thread (323) formed at an inner surface of the central hole; a elastic means (40); a blocking element (50), defining a first through hole (51) and a second through hole (52); and a button (71), including a supporting pin (72). The central shaft extends through the central hole of the turning element, the first elastic element, and the first through hole of the blocking element in that order, the outer screw thread engages with the inner screw thread, and the holding pin of the turning element is received in the second through hole of the blocking element. The present invention enables a foldable electronic device to be opened simply by pressing the button.

Abstract: A portable electronic device includes a removable panel (10) defining a first latching hole (122) therein, a knob (30), and a base cover (40). The knob includes an operating portion (31) and a shaft portion (32). A catch (321) extends from the shaft portion. The shaft portion is rotatably received in the first latching hole, with the operation portion being above an upper surface of the removable panel, and the catch being below a lower surface of the removable panel. A second latching hole (450) and a latching hatch (454) are defined in the base cover. The removable panel is attached to the base cover by way of the shaft portion of the knob being inserted into the second latching hole with the catch being received through the latching hatch, and the operating portion of the knob then being rotated so that the catch is engaged below the base cover.

Abstract: A hinge assembly includes a body drive member (1) having an outer screw thread (16), a cover drive member (2) having a projection (26) on an outer periphery, and a locating member (3). The cover drive member defines a central hole (23) and an inner screw thread (25) therein. The locating member has a base board (31), and a hatch (32) defined therein. Two arms (33) extend from opposite edges of the base board, and a bent portion (34) is formed at a distal end of each arm. The body drive member extends through the hatch and the hole, thereby integrating the hinge assembly into a complete unit, with the outer screw threadingly engaging with the inner screw thread, and the projection abutting the bent portion. The hinge assembly exerts reduced force on a foldable electronic device when the foldable electronic device is opened or closed.

Abstract: A portable electronic device includes a removable panel (12), a knob (11), and a base cover (30). A latch hole (1212) is defined in the removable panel. The knob includes an operating portion (112), a shaft portion (114), and two latching members (116) protruding from the shaft portion. A latching module (20) is provided in the base cover, and two lead-in slots (244) are defined in the latching module. A hole (242, 246) is defined in the latching module. Two orienting grooves are defined in an inner wall (243, 263) of the latching module. The shaft portion of the knob extends through the latch hole of the removable panel, and the operating portion is at an upper surface (122) of the removable panel. When the operating portion is rotated, the latching members move in the orienting grooves, and the removable panel is secured to the base cover.

Abstract: A battery cover assembly includes a battery cover (3) defining a pair of guide rails (326) in an inner surface of the battery cover, a connecting member (2), a housing (1) defining a receiving slot (164) and a battery-receiving compartment (194), a plurality of springs (5, 7), a plurality of sleeves (6), a number of locking pins (7), and an antenna rod (4). The connecting member is loosely received in the guide rails along a lateral direction. Each sleeve includes a first through hole and a second through hole. The connecting member is engaged with each sleeve by using each locking pin inserting into a folded arm of the connecting member and the first through hole, and the antenna rod inserts through the through hole of the sleeve and the receiving slot, such that the battery cover is pivotably connected with the housing.

Abstract: A portable electronic device (100) includes a base cover (12), a latching assembly (13) including a knob (14) and a spring (16), and a removable panel (18). The knob includes a sliding slit (1462a) and a latching projection (1452). The panel includes a latching hole (185) and a resisting protrusion (1852). The knob is engagable in the latching hole. The knob is attached on the base cover and can be rotated. One end of the spring biases the knob, and another end of the spring protrudes out of the sliding slit and biases the base cover. When the panel is attached on the base cover, the resisting protrusion and the latching projection interfere with each other to drive the knob to rotate in a first direction, the spring rebounds and drives the knob to rotate in an opposite second direction, and the resisting protrusion is secured below the latching projection.

Abstract: An antenna module (1) for a mobile phone in accordance with the present invention includes an antenna (2), an elastic element (3) and a feed mechanism (5). The elastic element surrounds a lower part (21) of the antenna and pushes the antenna outwardly. The feed mechanism has a connecting means (50) and a guiding groove (52). The connecting means movably engages with the antenna and slidably engages with the groove. The movement of the antenna between an extended position and a retracted position is regulated by engagement between the connecting means and the groove, and is aided by the resilience of the elastic element. A user can move the antenna between a retracted position and an extended position using one hand.