To produce a current disconnector for automotive safety systems having a conductor (1) which has at least one weakened disconnection point (7a, 7b), the conductor (1) is overmoulded in a plastic injection-moulding tool (2, 3). According to the invention, the disconnection point or disconnection points (7a, 7b) of the conductor (1) is/are produced in the plastic injection-moulding tool (2, 3). This not only simplifies production, it also prevents damage to the conductor, which is fragile owing to the weakened disconnection point, before it is stabilised by the overmoulding. Preferably, the disconnection point or disconnection points (7a, 7b) is/are produced by the closing movement of the plastic injection-moulding tool (2, 3). The disconnection point or disconnection points (7a. 7b) can also be produced in the preheating region of the plastic injection-moulding tool.

A neuromuscular stimulation device is described having a plastic casing housing a printed circuit board bearing control electronics, with the casing including an external integral flexible portion which is capable of being flexed into the interior of the casing so as to cause an electrically insulative substrate on which is carried an electrically conductive pathway to be pushed into contact with the PCB in order to complete an electrical circuit. Such a switch is relatively inexpensive to produce, as it has few moving parts, can be formed in a usual manufacturing process, and is robust.

A backlit keyboard includes key switches and a backlight module. The backlight module includes a light guide plate, a reflecting surface, and at least one light-emitting device. The light guide plate is provided with light-guiding dots disposed on a bottom surface thereof. A light-shielding layer disposed on the light guide plate has a light-shielding portion and a light-transmitting portion corresponding to at least one of the key switches. The reflecting surface faces the bottom surface of the light guide plate, and a pattern at least partially overlaps the light-shielding portion. A first light-emitting device and a second light-emitting device are disposed in an opening of the light guide plate, and the first light-emitting device and the second light-emitting device face respective sidewalls of the opening. The first light-emitting device is located underneath the light-shielding portion.

A method for manufacturing a membrane switch member that can be manufactured easily and that can be caused to function as an electrostatic sensor even when a protruding portion is pressed. Injection molding by injecting a material including a supercritical fluid gas and a resin material in a mixed state; and, after the injection molding, removing a first mold from a second mold, causing gas produced within the injection molded resin to grow in concave portions, thereby causing the concave portions to invert to a protruding state; and manufacturing a membrane switch member in which voids are formed between the protruding portions and a molding resin layer, and portions other than the portions corresponding to the protruding portions are adhered to the resin layer by an adhesion layer.

The present disclosure discloses a composite rubber dome including a supporting part, an elastic connecting part, and a pressing part which are integrally molded with a silicon rubber material, wherein the pressing part is further provided with a composite part compositely molded with a rubber dome body by adopting an embedding or injection molding method and made of a non-silicon rubber material having higher hardness than the silicon rubber material, and the composite part and the pressing part are coaxially and correspondingly disposed in a pressing direction and the composite part is disposed on a side, in contact with a keycap, of an axial outer end of the pressing part, or a side, corresponding to a thin film circuit layer, of an axial inner end of the pressing part.

A method for manufacturing a lighting button key is provided. The method includes forming a button body by processing a metal plate, attaching a thin film to the button body and performing double etching on a rear surface of the button body to process a symbol pattern. Additionally, the method includes press-forming the rear surface of the button body and an injection material of a transparent or translucent material into the rear surface of the button body to perform injection molding.

A method of manufacturing an emergency lamp switch is provided. The method includes printing a symbol on a film using inks of a plurality of colors and injection-molding an emergency lamp switch body on a symbol print surface of the film. The symbol print surface is transferred to the emergency lamp switch body and the film from the emergency lamp switch body is removed.

An electronic push button for a motor vehicle door handle, including an activation pattern supported by a membrane that is flexible in the direction of an electric switch carried by a printed circuit board, the activation pattern defining an activation surface that is pressed by an operator's finger in order to push the activation pattern in the direction of the electric switch. The activation pattern is made up of a set of studs that extend parallel to one another away from the electric switch, with the majority of the studs being spaced apart from one another, the set of studs discontinuously delimiting an outer contour of the activation surface of the electronic push button.

A waterproof switch device and a waterproof switch module for a vehicle trunk door employing the same are disclosed. Without using a PCB, terminal leads and a pair of switch terminal parts providing switch terminals are integrated with the switch bracket by injection molding. A push button unit is capable of switching the exposed switch terminals and is also sealingly coupled to the top side of the switch bracket so that the space containing the switch terminals and the switch contacts is waterproof. The lead portions of the switch terminals and the switch cables are connected in the terminal receiving space of the switch bracket, and the waterproofing part fills the terminal receiving space so that they are completely embedded so as to be waterproof. The waterproof switch module for a vehicle trunk door adopts the waterproof switch device and is composed of a double waterproof structure by applying an additional waterproof structure.

A waterproof switch device and a waterproof switch module for a vehicle trunk door employing the same are disclosed. Without using a PCB, terminal leads and a pair of switch terminal parts providing switch terminals are integrated with the switch bracket by injection molding. A push button unit is capable of switching the exposed switch terminals and is also sealingly coupled to the top side of the switch bracket so that the space containing the switch terminals and the switch contacts is waterproof. The lead portions of the switch terminals and the switch cables are connected in the terminal receiving space of the switch bracket, and the waterproofing part fills the terminal receiving space so that they are completely embedded so as to be waterproof. The waterproof switch module for a vehicle trunk door adopts the waterproof switch device and is composed of a double waterproof structure by applying an additional waterproof structure.