Abstract: A hinge (200) is provided in connection with a mobile phone. The hinge includes a shaft (21), a cam (22), a sleeve (25), a torsion spring (24) and a compression spring (23). The shaft includes a first end with two rotatable blocks (211) formed thereon and a second opposite end. The cam includes a first cam end having a flat surface (2230), an intermediate portion (221), a second cam end. The cam surrounds the shaft with the rotatable blocks abutting against the flat surface and being rotatable relative to the cam. The sleeve includes a first end engaged with the second cam end of the cam, and a second end abutting the second end of the shaft. The torsion spring has an inner finger (242) coupled to the shaft, and an outer finger (241) coupled to the sleeve. The compression spring surrounds the intermediate portion of the cam.

Abstract: A mobile phone (1) includes a main body (3), a keypad (5), and a pair of fasteners (7, 9) slidably and pivotally attaching the keypad to the main body. The main body has a housing (2) with a recess (31) defined in a lower portion thereof. The keypad is received in said recess and comprises a front panel (51) for a keypad input mode and a back panel (53) for a touch screen input mode. A switch between two input modes is achieved by sliding and rotating the keypad around the pair of fasteners to display one side or another side.

Abstract: A hinge (20) is for joining housings of a foldable electronic device together. The hinge includes an axle (22), a clip (220) at one end of the axle, a spring (24), and a block (26) at an opposite end of the axle. The axle has a screw thread (224) thereon. The block has a screw hole (262) therein. Through engagement of the screw thread in the screw hole, the block is retained on the axle. The spring is retained between the clip and the block. The structure of the hinge is stable, by reason of the connection provided by the axle between the clip and the block. The mobile phone using the hinge can reduce or eliminate damaging impact that would otherwise occur when the cover is opened up from the main housing and reaches an open state.

Abstract: A screw cover (100) for a screw hole (32) includes a stretchable cap (10), and a post (20) movably engaged therein. The cap includes an end (12) having an opening (122) and three arms (14) extending therefrom. The arms have three longitudinal slits (144) therebetween. The post has two wedges (242) slidably engaged in two of the slits. A diameter of the cap is no larger than a diameter of the screw hole, and a diameter of the post is larger than a diameter of the opening. In use, the post is interferingly inserted into the opening and enlarges the cap, which engages the screw cover in the screw hole. In removal, the post is released from the opening, and the cap returns to its original size. The screw cover can then be easily removed from the screw hole. Attachment and removal of the screw cover is easy and safe.

Abstract: A hinge assembly (100) includes a rotating cam (10) having an inner screw thread (122) and a first cam surface (14) at one end thereof, a shaft (20) having an outer screw thread (242) engaging with the inner screw thread at one end thereof, a driven cam (30) having a second cam end (342), a sleeve (40) sliding relative to the driven cam, a first elastic element (50), a second elastic element (52), a sliding element (60), a locking element (70), and a button (90). The shaft extends through the rotating cam, the driven cam, the first elastic element, the sleeve, and the sliding element, and the locking element. The other end of the shaft is secured on the locking element. The button is slidably disposed on the locking element, one end of the button resists the sliding element.

Abstract: A protective film (1) includes a substrate (10), an upper hardened layer (20), a lower hardened layer (22), a mirror-effect layer (30), and a DLC (Diamond-Like Carbon) film (40). The substrate is made of transparent plastic material, and has an upper surface (100) and a lower surface (102). The upper hardened layer is formed on the upper surface of the substrate, and the lower hardened layer is formed on the lower surface of the substrate. The mirror-effect layer is formed on a surface of the lower hardened layer. The DLC film is formed on a surface of the upper hardened layer. A method for making the protective film is also provided.

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 (100) for joining a cover section (110) to a body section (120) of a foldable electronic device includes a main shaft (1), a cam (2), a follower (3), a first elastic element (4), a control (5), a sleeve (6), a second elastic element (7) and a fixing element (8). The shaft has an outer thread (101) at one end and an engaging portion at an opposite end. The cam includes an end cam surface (212), and an inner thread (211). The follower includes a latching cam surface (312). The control has at least one projection (52) at one end thereof, and engages with the engaging portion. The sleeve is connected with the follower, and rotation of the sleeve is limited by the control. When the control is pushed, the hinge assembly fully opens the cover section from body section. This provides a user with convenient one-handed operation.

Abstract: A multi-section hinge mechanism (60) includes a rotary member (10), a connecting shaft (20) and a hollow cylindrical body (30). The rotary member includes a disk (1) and a securing portion (12) integrally formed with the disk. The connecting shaft includes a shaft portion (22) and an elastic body (23) provided on the shaft portion. The hollow cylindrical body includes a bottom portion (31) and defining a plurality of grooves (33) in an inner wall thereof. The bottom portion defines a hole (32). The shaft portion is rotatably received in the hole. The shaft portion of the connecting shaft is securely engaged with the securing portion of the rotary member. The elastic body engages in one of the grooves of the cylindrical body.

Abstract: An automatic antenna (100) for a portable electronic device includes a shaft (20), a hollow securing element (30), a sliding element (50) having a plurality of sliding arms (54) symmetrically disposed on an outer wall thereof, a hollow rotating element (60), a housing (80), and a spring (70) disposed between the rotating element and the housing. The securing element has a plurality of blocks (320) symmetrically disposed on an inner wall thereof. The blocks define a plurality of slots (3200) therebetween. The sliding element defines an end surface (56). The rotating element includes a peripheral cam portion (61). A plurality of projections (604) protrudes from a periphery of the cam portion. The shaft extends through the securing element, the sliding element, the rotating element, the spring, and the housing in that order. The sliding arms can slide within the slots, and the projections can slide in the slots.

Abstract: A latching assembly includes a removable panel (1), a knob (2), a sliding latch (3), and a base cover (5). The removable panel includes a mounting hole (12), a depression portion (13), and a plurality of catches (17). The knob includes a slanted protuberance (22), and the knob mates in the mounting hole. The sliding latch includes a head portion (32), a slanted portion (38), and a spring arm (34). The base cover includes a slot (51) matingly receiving the head portion, a plurality of catch slots (54) matingly receiving the catches, and a board (53). When the knob is pressed, the slanted protuberance engages with the slanted portion and the spring arm can move in the depression portion. As a result, the removable panel can be fixed on the base cover or released from the base cover easily.

Abstract: A mobile telephone includes a main body (20) and a keypad (30). The keypad is mounted on the main body. The keypad is rotatable relative to an axis that is substantially perpendicular to the main body. The main body and the keypad are interconnected by means of a shaft (322) that is arranged along the axis. The keypad includes a spring-loaded ball (326) that is spaced apart from the shaft a distance. The main body defines a segmentary rounded guiding shallow groove (25) receiving a portion of the ball. The keypad is movable between a first position where the ball is located in a first end of the guiding groove and a second position where the ball is located in a second opposite end of the guiding groove.

Abstract: A foldable mobile telephone includes a first housing (10), a second housing (20), and a connecting unit (30). The connecting unit includes a first connecting block (304), a second connecting block (306), and a hinge (302). The first connecting block and the second connecting block are coupled together via the hinge. A flexible cable to establish electrical connection between the first and second housings is incorporated in the hinge. Two electrical connectors are associated with the first and second connecting blocks respectively. The electrical connectors are electrically connected with each other via the flexible cable. The connecting unit is movably connected with the first and second housings. The first housing is connected with the first connecting block. The second housing is connected with the second connecting block. The first housing is pivotable about the second housing via the hinge at either of two sides of the foldable mobile telephone.

Abstract: A foldable mobile telephone includes a first housing (10), a second housing (20), a connecting unit (30) and two turning shafts (40). The connecting unit includes a first connecting block (304), a second connecting block (306) and a hinge (302). The first connecting block and the second connecting block are coupled together via the hinge. The connecting unit is connected with the first and second housings and through the turning shafts. The first housing is connected with the first connecting block. The second housing is connected with the second connecting block. The first housing is pivotable about the second housing via the hinge at either of two sides of the foldable mobile telephone. The connecting unit can turn relative to the first and second housings through the turning shafts. Therefore, the foldable mobile telephone can be opened breadthwise or lengthwise as desired for improved operability and convenience.

Abstract: A hinge mechanism for joining a cover (5) to a main housing (4) of a foldable radiotelephone includes a rotation assembly (1). The rotation assembly includes a hollow connecting member formed by two casings (13) each having two slots (131), two shafts (12), and an elastic member (11) with two end hooks (111), the elastic member being received in the connecting member. The shafts are received through the hooks and through holes cooperatively formed by the slots, and are engaged in the cover and the main housing. The rotation assembly thus pivotably connects the cover to the main housing. The shafts are slidable along the holes. When the cover is manually opened, the shafts slide and stretch the elastic member. When the cover reaches a predetermined angle, the elastic member rebounds and drives the shafts to slide in opposite directions, whereby the cover is automatically further opened.