An operating assembly unit for a motor vehicle may include a switch for shifting speed levels of an automatic motor vehicle transmission. The switch may include a first lever that is manually operable, a second lever mechanically coupled to the first lever, and a switching element. The first lever may be movable to actuate the electrical switching element by causing contact between the electrical switching element and the second lever. The second lever may include a leaf spring with a clamped end and a free end. The actuation of the first lever may deform the leaf spring such that at least a portion of the leaf spring is displaced towards the switching element.

An operating assembly unit for a motor vehicle may include a switch for shifting speed levels of an automatic motor vehicle transmission. The switch may include a first lever that is manually operable, a second lever mechanically coupled to the first lever, and a switching element. The first lever may be movable to actuate the electrical switching element by causing contact between the electrical switching element and the second lever. The second lever may include a leaf spring with a clamped end and a free end. The actuation of the first lever may deform the leaf spring such that at least a portion of the leaf spring is displaced towards the switching element.

Presently provided is a keyboard, key stabilizer mechanism, and method. At least one of the keys on the keyboard has a stabilizer mechanism with spaced apart bases. A stem is supported on each of the bases with perpendicularly disposed hinges. A wire is disposed to cooperate with a hinge supporting each of the stems.

Presently provided is a keyboard, key stabilizer mechanism, and method. At least one of the keys on the keyboard has a stabilizer mechanism with spaced apart bases. A stem is supported on each of the bases with perpendicularly disposed hinges. A wire is disposed to cooperate with a hinge supporting each of the stems.

A push button device is adapted for accommodating a substitute pushing module, and the substitute pushing module has a substitute installing plate, and a substitute cap body. The push button device includes a pushing module, a bottom plate, a keycap, a scissor-switch module, and a sensor module. The pushing module includes an installing plate and a cap body. The bottom plate includes a bottom plate body, two limiting portions, and a plurality of lower pivoting joint portions. The limiting portions are adapted for detachably engaging the substitute installing plate of the substitute pushing module to secure the substitute pushing module on the bottom plate when the pushing module is removed.

A push button device is adapted for accommodating a substitute pushing module, and the substitute pushing module has a substitute installing plate, and a substitute cap body. The push button device includes a pushing module, a bottom plate, a keycap, a scissor-switch module, and a sensor module. The pushing module includes an installing plate and a cap body. The bottom plate includes a bottom plate body, two limiting portions, and a plurality of lower pivoting joint portions. The limiting portions are adapted for detachably engaging the substitute installing plate of the substitute pushing module to secure the substitute pushing module on the bottom plate when the pushing module is removed.