Shin Jiuh Corporation

Kevin Lu

Ching-Hsiang Chen

A joystick includes a circuit board , a thin film circuit arranged on the circuit board , a joystick on the thin film circuit , and a spacer arranged between the thin film circuit and the circuit board . By the joystick , the thin film circuit is in contact with the circuit board so that resistor are connected in parallel so as to reduce the resistance to control the direction and speed of the cursor precisely. As the rod is pushed by an outer force, the pit on the movable body presses one of the joint points and . Then, the joint points and will transfer a signal of the resistor, and thus, the movement of the control cursor can be controlled.

Joystick

An improved bridge structure for keyboards consists of a first linkage element and a second linkage element pivotally engaging with each other. The first linkage element and second linkage element have respectively a pivotal trough which have respectively a pivotal trough slant surface section on the bottom section, and an axle which have respectively an axle slant surface section on the bottom section. The two slant surface sections intersect to form a fulcrum. The fulcrums remain stationary at the center to serve as the circle center of movements such that moving tolerances are unchanged when the key cap is depressed downwards. And the movements are performed based on the stationary center points which support and transfer forces in sideward directions to reduce sideward inclination and shaking.

Bridge structure for keyboards

An improved keyboard structure consists of a lower plate, a membrane circuit, an upper plate, a bridge means, an elastic element and a key cap. The lower plate has a set of symmetrical first latch sections and a set of retaining sections formed at selected locations corresponding to the first latch sections. The upper plate has a set of symmetrical second apertures corresponding to the first latch sections and a set of symmetrical second latch sections corresponding to the second apertures. There are openings in front of the second latch sections for housing the retaining sections. The bridge means has a first pivotal end insertable in a biased manner into a space formed between the second latch section and the retaining sections and a second pivotal end latching to the first latch sections such that the bridge means can be assembled on the upper plate and the lower plate in single direction. The upper plate may be pushed to move the second latch sections away from the first pivotal end for removing the bridge means.

Growing community of inventors

Hsin-Tien, Taiwan

Kevin Lu