Area along the railroad line telephone

摘要

Topic Low the area along the railroad line telephone which it tries to prevent the closing forgetting of the door in cost is offered in the telephone which is provided in area along the railroad line such as railroad.SolutionsArea along the railroad line telephone 1, the telephone itself 2 and frame 3 and door 4 and handle section has 5 and energization section 6. Frame 3 stores telephone itself 2, possesses opening 31. Door 4 opens and closes opening 31. Handle section 5 is something because when door 4 is closed it locks in frame 3. Energization it does energization section 6, in the direction which opens door 4. Door 4 when being locked to frame 3 by handle section 5, is opened by energization section 6. Because of this, you have the fact that door 4 is not locked to frame 3 the user become aware. Choice figure Drawing 4