Abstract: A brake measuring gauge and method are disclosed. The measuring gauge comprises two measuring rods and a horizontal rule. Each of the two measuring rod has at least a connecting rod formed at an end of the measuring rod to engage with a nut. The horizontal ruler has a central hole formed at a central portion of a surface thereof, and two through holes are formed at relative positions on two ends of the horizontal ruler, and two scales are separately formed at a lateral side of the horizontal ruler. By using the measuring gauge to measure and calculate the dimensions of components of the brake rotor, the user can obtain precise sizes of the adapter bases for different types of the calipers or the brake discs.

Abstract: An interchangeable face gauge structure for automobile gauges comprises a gauge body, a face gauge, a retainer ring and an outer cover. The gauge body and outer cover are combined by means of assembling, which causes the outer cover to be dismountable from and re-mountable on the gauge body. The face gauge is additionally mounted on the surface of the light directing panel on the gauge body, which allows the face gauge to be replaceable with one of the type to the liking of the user after the outer cover is dismounted from the gauge body, improving the variability and visual effect of the gauge body. Further, with the convenience of the outer cover being easily mountable on the gauge body, the user is allowed to replace and mount parts by themselves, adding to the practicality of the structure.

Abstract: A brake measuring gauge and method are disclosed. The measuring gauge comprises two measuring rods and a horizontal rule. Each of the two measuring rod has at least a connecting rod formed at an end of the measuring rod to engage with a nut. The horizontal ruler has a central hole formed at a central portion of a surface thereof, and two through holes are formed at relative positions on two ends of the horizontal ruler, and two scales are separately formed at a lateral side of the horizontal ruler. By using the measuring gauge to measure and calculate the dimensions of components of the brake rotor, the user can obtain precise sizes of the adapter bases for different types of the calipers or the brake discs.

Abstract: A voice coil motor includes a casing with a receiving space, a plurality of magnetic elements disposed in the receiving space, a carrier movably disposed in the receiving space for carrying a lens unit, a coil wrapped around the carrier, and a resilient member interconnecting the casing and the carrier to seal a gap between the casing and the carrier. The coil interacts with a magnetic field of the magnetic elements when energized for generating a driving force to displace the carrier. The resilient member is movable along with the carrier and is deformed to generate a restoring force that is opposite to the driving force.

Abstract: An electronic device includes a main body, a holder, a battery cover, a button and a resilient member. The main body defines an opening and a protruding hole. The holder is fixed to the main body. The battery cover is coupled to the main body and forms a catching tab. The button is slidably positioned between the main body and the holder. The button includes a latching tab. One end of the resilient member resists the holder or the main body, and the other end resists the button. The catching tab of the battery cover protrudes in the protruding hole to engage with the latching tab of the button, and part of the button exposes out of the main body via the opening.