The present invention relates to a safety belt buckle, and more specifically, to a safety belt buckle which can stably detect whether a driver's safety belt is fastened even when foreign materials or water is introduced into the buckle in the case of being fastened with a tongue of a safety belt.

In the safety belt buckle according to the present invention, a switch that detects whether a tongue of a safety belt is fastened is blocked from coming into direct contact with water or foreign materials, which are introduced from the outside, so as to stably detect fastening or unfastening of the tongue of the safety belt, and thus the safety belt buckle can be stably operated even when mounted in a seat exposed to the outside such as a seat of a forklift or a tractor.

The snap action switch of the present disclosure may include a housing with a plurality of protruding blocks extending inwardly, a plunger disposed on the housing, a first elastic component coupled to the plunger for providing a force against the plunger, a cam located within the housing and being movable by the plunger, a rotor located within the housing and associated with the cam, and a second elastic component coupled to the rotor for providing a force against the rotor. When the cam moves to a first position, the rotor may rotate such that a lower surface of the cam engages with an upper surface of the rotor, and when the cam moves to a second position, the rotor may continue to rotate such that the upper surface of the rotor engages with a lower surface of at least one of the plurality of protruding blocks of the housing.

A swipe gesture detection device may determine a swipe gesture performed on a moving surface element of a vehicle component. The swipe gesture detection device includes a spring, which applies a pre-loading between the moving surface element and a housing element of the vehicle component. The swipe gesture detection device also includes a contactless measuring distance sensor having at least three sensor elements arranged in different positions for detecting a respective distance between the surface element and the housing 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.

An operation reception device includes a display to display a current value, a physical operator to receive an operation in a one-way direction, and a controller configured to when the physical operator is not being operated by the user, set as a reference state an operating state corresponding to the current value, and in response to user operation of the physical operator, change the current value of the reference state.

A key apparatus includes a substrate, a keycap, a balancing lever, and a membrane layer. The keycap is disposed on the substrate. The balancing lever is disposed between the substrate and the keycap. The balancing lever includes a shaft lever and a side lever extending from a side direction of the shaft lever. The side lever has an end away from the shaft lever. The membrane layer is disposed on the substrate. The membrane layer is provided with a cutting structure. The cutting structure is close to the end of the side lever. The membrane layer further includes a flexible limiting area located on one side of the cutting structure. The side lever of the balancing lever is inserted in the cutting structure, and makes the end be held against the flexible limiting area.

A terminal fixed lamp switch for a parking brake and a structure of a lamp switch is configured to be changed, which indicates that a parking brake is pulled as lighting a lamp on an instrument panel of a vehicle by pulling a lever for the parking brake to prevent malfunction due to poor contact of the lamp switch when an external shock occurs, and enhance fuel efficiency and reduce manufacturing cost due to weight reduction.

A switch mechanism includes a housing with a fenestration, a switch element held in the housing, and a first tab and a second tab each being pivotally attached to an opposite lateral edge of the fenestration. The tabs are constrained to rotational movement relative to the housing so that contact with the first tab or the second tab causes the respective tab to rotate to actuate the switch element.

A key stabilizer is provided, in which the key stabilizer includes a keycap and a balance bar. The keycap has a bottom surface and two protruding portions disposed thereon. The keycap moves back and forth along a vertical direction between a top position and a bottom position. Each of the two protruding portions has an engaging portion at the end thereof. The bottom surface faces the bottom position, and the two protruding portions are arranged along a horizontal direction that is perpendicular to the vertical direction. The balance bar has a hinge portion and two side portions respectively connected to both ends of the hinge portion. The hinge portion is positioned on a rotation axis parallel to the horizontal direction. The end of each of the two side portions that is away from the hinge portion is inserted into the engaging portion.

A contact mechanism includes an opening/closing fixed contact, an opening/closing movable contact opposed to the opening/closing fixed contact, and a permanent magnet configured to extend an arc that occurs between the opening/closing fixed contact and the opening/closing movable contact in a predetermined direction. In particular, an arc that occurs from contact surface regions where the opening/closing fixed contact and the opening/closing movable contact make contact with each other is extended by a magnetic force of the permanent magnet and moved to non-contact surface regions where the opening/closing fixed contact and the opening/closing movable contact make no contact with each other.