Mechanism that converts a rotary knob (potentiometer) motion on an electric guitar, into a linear sliding motion. The sliding motion can be easily manipulated by the strumming or picking hand of the musician while simultaneously playing the instrument. This mechanism allows an electric guitarist to make sweeping motions with the picking hand while playing to create musical effects with the tone control known as a “wah wah” sound, or “boo wah” sound, and the volume control to create effects known as “volume swells” or volume “tremolo”. The way this mechanism works is by pushing and pulling on a finger loop that is positioned for easy access, the finger loop is fastened to a trolley that has two bearings on it that roll in a track in the main body. The trolley has a gear rack fastened to it and that gear rack rotates a gear that is fastened to the knob stem on the potentiometer, and the action will rotate the potentiometer to its full range. This mechanism can be installed inside of a guitar body with minor modification. It can also be installed easily and without modification to a Telecaster style electric guitar as an external apparatus.

A varistor type multi-directional input device, including an upper cover, a base, a rocker assembly, a reset assembly, an electrical component, a switch elastic piece and a terminal assembly. The conductive elastic piece of the electrical component is mounted in a cavity surrounded by the upper cover, the base and the varistor. The rocking bar is operated to swing the eccentric wheel of the upper rocker arm or the lower rocker arm, and the surface pressure of the varistor is different due to the different deformation of elastic piece caused by the change of the height of the eccentric wheel in the axial direction, so that the varistor outputs different resistance values to achieve control of the screen cursor. The present disclosure is provided with a rocker arm seat which is matched with the upper rocker arm and the lower rocker arm.

A fuel sender device for a vehicle may include a resistance substrate having a conductor part, a contact plate having a contact point contacting the conductor part, and a float unit moving up and down according to a variation of an oil surface and angularly rotating the contact plate, wherein the fuel sender device includes a variable contact point that allows the contact plate to variably contact the conductor part while moving up and down and rotating according to the variation of the oil surface.

A fuel sender device for a vehicle may include a resistance substrate having a conductor part, a contact plate having a contact point contacting the conductor part, and a float unit moving up and down according to a variation of an oil surface and angularly rotating the contact plate, wherein the fuel sender device includes a variable contact point that allows the contact plate to variably contact the conductor part while moving up and down and rotating according to the variation of the oil surface.

The present invention relates to a brush type contact material, including one or more curved metal pawls of which ends come into contact with objects to be contacted. The ends of the pawls have an arc-like cross section in a thickness direction, a curvature radius R1 on a front side from a contact point with the object to be contacted and a curvature radius R2 on a back side from the contact point are formed so as to be R1R2, and also both ends in a width direction of the pawl are chamfered. At this time, preferably, R1 is larger than R2 (R1>R2), and R1 divided by R2 (R1/R2) is 3.0 or less. The brush type contact material according to the present invention enables a smoother sliding movement than ever before and can be relatively simply manufactured.

The present invention relates to a brush type contact material, including one or more curved metal pawls of which ends come into contact with objects to be contacted. The ends of the pawls have an arc-like cross section in a thickness direction, a curvature radius R1 on a front side from a contact point with the object to be contacted and a curvature radius R2 on a back side from the contact point are formed so as to be R1R2, and also both ends in a width direction of the pawl are chamfered. At this time, preferably, R1 is larger than R2 (R1>R2), and R1 divided by R2 (R1/R2) is 3.0 or less. The brush type contact material according to the present invention enables a smoother sliding movement than ever before and can be relatively simply manufactured.