Abstract: An assembling infrared touch control module includes four L-shaped first frame members and a plurality of straight second frame members matched in pairs. Each first and second frame member has a space therein and two openings at two ends thereof, respectively, in communication with the space. Each space has a circuit board therein. Each circuit board has a plurality of infrared transmitter/receiver components thereon and two connectors thereon at the two openings, respectively. The four first frame members and the second frame members, whose number may be increased or decreased by demand, are assembled together to form a frame by the connectors, so that an active touch area of the frame may be resized by demand to be adapted to a display device of any size, and an additional touch control function adapted to an extended area for the display device may be set.

Abstract: An assembling infrared touch control module is provided and includes four L-shaped first frame members and a plurality of straight second frame members matched in pairs. Each first and second frame member has a space therein and two openings at two ends thereof, respectively, in communication with the space. Each space has a circuit board therein. Each circuit board has a plurality of infrared transmitter/receiver components thereon and two connectors thereon at the two openings, respectively. The four first frame members and the second frame members whose number may be increased or decreased by demand are assembled together to form a frame by means of the connectors so that an active touch area of the frame may be resized by demand to be adapted to a display device of any size, and an additional touch control function adapted to an extended area for the display device may be set.

Abstract: The invention provides an optical touch device, including a main body, a keyboard and a light emitting member. The keyboard, placed on the main body and having a first end portion and a second end portion, includes a supporting frame, a keycap and a stopping member. The keycap is connected to the supporting frame and moves between a first position and a second position. The stopping member is connected to the keycap and moves simultaneously with the keycap. The light emitting member generates a light beam to the keyboard. When the keycap is in the first position, the light beam passes through the first end portion to the second end portion, and when the keycap is in the second position, the light beam is terminated by the stopping member, such that the light does not reach the second end portion.

Abstract: The invention provides an optical touch device, including a main body, a keyboard and a light emitting member. The keyboard, placed on the main body and having a first end portion and a second end portion, includes a supporting frame, a keycap and a stopping member. The keycap is connected to the supporting frame and moves between a first position and a second position. The stopping member is connected to the keycap and moves simultaneously with the keycap. The light emitting member generates a light beam to the keyboard. When the keycap is in the first position, the light beam passes through the first end portion to the second end portion, and when the keycap is in the second position, the light beam is terminated by the stopping member, such that the light does not reach the second end portion.

Abstract: The invention provides an optical touch device, including a main body, a keyboard and a light emitting member. The keyboard, placed on the main body and having a first end portion and a second end portion, includes a supporting frame, a keycap and a stopping member. The keycap is connected to the supporting frame and moves between a first position and a second position. The stopping member is connected to the keycap and moves simultaneously with the keycap. The light emitting member generates a light beam to the keyboard. When the keycap is in the first position, the light beam passes through the first end portion to the second end portion, and when the keycap is in the second position, the light beam is terminated by the stopping member, such that the light does not reach the second end portion.

Abstract: A case unit for a storage device includes a main case having an accommodation chamber, a subsidiary case detachably and drawably mounted in the accommodation chamber of the main case, and a circuit board mounted with the subsidiary case. As long as the subsidiary case is taken out of the accommodation chamber of the main case, the circuit board can be repaired, thereby enhancing convenience of assembly and repair works.

Abstract: A retaining structure for holding one or more electronic devices inside a point of sale system terminal includes a support housing having a back plate, two side plates connected with two opposite sides of the back plate, at least two first positioning portions formed on the back plate, and a support plate mounted on the back plate and having at least one protrusion, and a retaining member having at least two second positioning portions detachably coupled to the first positioning portions of the support housing, and at least one groove engaged with the protrusion of the support plate for holding the electronic device between the support housing and the retaining member without using any tool.

Abstract: A support structure for a point of sale system terminal includes a base frame having an inner back plate and two opposite inner side plates connected with two opposite sides of the inner back plate and each provided with at least one first coupling portion and at least one second coupling portion, a housing covered on the base frame and having an outer back plate and two outer side plates connected with two opposite sides of the outer base plate and each provided with at least one third coupling portion detachably coupled to the first coupling portion of the associated inner side plate of the base frame, and a shield having at least one forth coupling portion on each of two opposite sides thereof detachably coupled to the second coupling portion of one of the inner side plates of the base frame. The support structure can be assembled without tool.

Abstract: A positioning device with position-indicating capability includes: a slide-mounting part formed with a plurality of retaining holes and having a contacting wall that is formed with a plurality of recessed portions corresponding respectively to the retaining holes; a slider slidable on the slide-mounting part; an engaging member having an engaging protrusion capable of releasably engaging or disengaging a selected one of the retaining holes and co-slidable with the slider; and a position-indicating unit co-slidable with the slider and including a spring arm that has a free end in sliding contact with a corresponding one of the recessed portions of the contacting wall when the engaging protrusion is aligned with the selected retaining hole.

Abstract: A lockable case includes a base casing having two opposite first lateral walls, a top cover openably connected to the base casing, a slide block, and two slide bars disposed respectively on two opposite sides of the slide block. Each slide bar has an inner end, and a locking element to engage a corresponding first lateral wall. The slide block is disposed between the inner ends of the slide bars, and is movable between locking and unlocking positions that respectively prevents and permits inward movement of the slide bars. An actuating lever is connected pivotally to the slide block to move the slide block to the locking position. An elastic member is provided for biasing the slide block toward the unlocking position.

Abstract: A lockable case includes a base casing having two opposite first lateral walls, a top cover openably connected to the base casing, a slide block, and two slide bars disposed respectively on two opposite sides of the slide block. Each slide bar has an inner end, and a locking element to engage a corresponding first lateral wall. The slide block is disposed between the inner ends of the slide bars, and is movable between locking and unlocking positions that respectively prevents and permits inward movement of the slide bars. An actuating lever is connected pivotally to the slide block to move the slide block to the locking position. An elastic member is provided for biasing the slide block toward the unlocking position.

Abstract: A foldable electronic device includes first and second members interconnected pivotally by a coupling unit. The first and second members have first and second positioning portions, respectively. The coupling unit includes a coupling link, a slide link and a biasing member. The coupling link has a first end portion retained rotatably at the first positioning portion, and an opposite second end portion extending in a longitudinal direction. The slide link is retained slidably on the coupling link for sliding along the longitudinal direction, and is retained rotatably at the second positioning portion. The biasing member pulls the slide link toward the first member. The coupling unit permits movement of the second member in sequence from an unfolded position, a first intermediate position, a second intermediate position, and to a folded position relative to the first member.