Patent ID: 8036725
Filing Date: 2011-10-11
Classification: H04M

Abstract:
1. A mobile device comprising: a trigger having a molded component defining an outer shape of the mobile device, and a rod-like body fixed to the molded component at one end; a housing having a hole into which the rod-like body is inserted, and guide walls for guiding movement of the rod-like body in a direction in which the rod-like body is inserted into or pulled from the hole; a sensor for detecting that the trigger has been operated in the direction in which the rod-like body is pulled from the hole; and an alarm device activated in response to detection of the operation of the trigger by the sensor, wherein the trigger has sheet-metal members fixed to the molded component and guided by the guide walls by their being moved in contact with the guide walls in the direction in which the rod-like body is inserted or pulled, wherein each of the sheet-metal members has a projection curving in the direction in which the rod-like member is inserted or pulled and sticking out toward the corresponding guide wall, and a first recess for receiving the corresponding projection when the rod-like body is in a first position where the rod-like body has been inserted deepest in the hole; a second recess for receiving the projection when the trigger is pulled to a second position where the trigger has come into contact with the stopper; and a wall formed between the first and second recess so that the projection moves over the wall, wherein the hole is a first hole taperingly formed such that an entrance portion of the hole is larger in diameter than the rod-like body and a step is formed in a certain place between both ends of the hole, and a firmly fitted member in which a second hole is formed so that the rod-like body is inserted in and freely slid forward or backward against this hole, the firmly fitted member being firmly fitted in the entrance portion of the first hole; and a sealing member disposed between the step and the firmly fitted member in the first hole so as to be in contact with the internal wall of the first hole and the rod-like body.