Abstract: A press switch includes a base, a contractible pulling rod, an upper casing, and an actuator, and when the actuator is pressed to compress a resilient spring between the upper casing and the actuator, such that the contractible pulling rod and its press terminal move downward until two movable contact points are in contact with two fixed contact points of input/output terminal on both sides of the base to electrically connect to power supply If the actuator is released, the extension of the resilient spring lifts the contractible pulling rod and its press terminal, and thus the two movable contact points are forced to be detached from the fixed contact points of the input/output terminals on both sides, so as to disconnect the power supply. The invention can assure the safety of the use of an electric appliance product such a tool machine.

Abstract: An improved blind structure includes a Roman blind having a head-rail made up of a first and second engaging sections symmetrically extending at both top lateral sides thereof for a plurality of guide sliding seats to be respectively mounted thereto wherein a pull cord positioning seat and an actuation cord positioning seat are symmetrically joined at one end of the first and the second engaging sections thereof respectively, and a light-passable blind body is fixedly attached at the underside of the head-rail in alignment with the first engaging section thereof to be collected or expanded via pull cords.

Abstract: A dustproof and waterproof switch includes a casing, a contact pole device, an axial joint member, a catch member and a covering member. The characteristic is in that the axial joint member is placed in the casing and lap joined to support members the axial joint member having a fitting hole at the center thereof and having an axial plate at the front and the rear sides thereof respectively; the catch member is formed a frame and placed in a mold to allow the concave downward plane at the top thereof joined to the upper arc recess of the covering member, which is made by way of injection molding, and the catch member is attached between the two axial plates with the bottom thereof having a central hollow post fitting with an extendable stir rod and the stir rod piercing the rod plate and the lower end of the stir rod contacting with the arc contact pole; and the covering member at the bottom edge thereof extends an inner connecting rim for fitting with the casing and covering the upper part of the casing.

Abstract: A dust and moisture free switch includes a hollow casing, a contact pole device, a control plate and an isolation part. The contact pole device is inserted to the bottom of the casing with a stationary pole and a support pole being inserted into and locating at a respective pole hole and an arc pole being attached to the top of the support pole such that the arc pole can swing leftward and rightward. The control plate is joined to the upper portion of the casing and has the bottom thereof being arranged with a central hollow post to fit with an extensible stir lever, which has a bottom thereof contacting with the arc pole. The isolation part is made of soft high molecular plastic material and passed through by and fitting with the stir lever so as to be located at and closely joined to the inner wall of the casing to perform a function of blocking dust or moisture to enter the bottom of the casing.

Abstract: A dust and moisture free switch includes a hollow casing, a contact pole device, a control plate and an isolation part. The contact pole device is inserted to the bottom of the casing with a stationary pole and a support pole being inserted into and locating at a respective pole hole and an arc pole being attached to the top of the support pole such that the arc pole can swing leftward and rightward. The control plate is joined to the upper portion of the casing and has the bottom thereof being arranged with a central hollow post to fit with an extensible stir lever, which has a bottom thereof contacting with the arc pole. The isolation part is made of soft high molecular plastic material and passed through by and fitting with the stir lever so as to be located at and closely joined to the inner wall of the casing to perform a function of blocking dust or moisture to enter the bottom of the casing.

Abstract: A voltage switch including a casing, a plurality of terminals fastened to the casing, a bottom board covered on the casing and having a center opening, a contact slide mounted in the casing and moved within the center opening of the bottom board to alternatively connect the terminals together,, wherein the casing has a plurality of mounting grooves symmetrically disposed at two opposite sides; the bottom board is stamped from a metal plate and then bent into shape, having two screw holes longitudinally alinged at two opposite ends for mounting, and a plurality of upright hooks symmetrically and transversely aligned at two opposite ends and respectively fastened to the mounting grooves of the casing.