RU94032801A - Mechanical sound synthesizer - Google Patents

Abstract

FIELD: manufacture of door ringers using sound scale adjustment. SUBSTANCE: case 1 accommodates percussion unit 3 (sensitizer) and radiator 2. Clappers 9 kinematically secured on driving rod 4 strike at random or in definite sequence strip radiators 2 while rod is moving. In one of options, radiators are secured in parallel with top and bottom parts of case 1. In other option radiators 2 are made in the form of bells mounted on swivel shaft 16. One of radiators is joined through spring 17 to driving rod 4 and any other radiator is joined through spring 18 to case 1. In third option, driving rod 4 is made in the form of wide-pass helical ribbon surface. Percussion unit is, essentially, lever with spring-loaded clappers 9. Sound-radiating strips 2 are arranged on ring circumference uniformly in slits 26 and their shafts 21 are loosely mounted on bottom 22 and in cover 24 of case 1. EFFECT: improved design. 6 cl, 6 dwg

Claims (1)

A mechanical sound synthesizer, designed to create, for example, doorbells using sound gamma adjustment. For this, a shock device (activator) and emitter are mounted in the housing. Hammers kinematically attached to the drive rod during the movement of the latter produce a random attack or in a certain sequence on the plate emitters. In one embodiment, the emitters are mounted parallel to the upper and lower parts of the housing. In the second embodiment, the emitters are made in the form of bells mounted on a rotary roller. Moreover, one of the emitters is connected via a spring to the drive rod, and any other emitter is connected by a spring to the housing. In the third embodiment, the drive rod is made in the form of a wide-access tape helical surface. The percussion device is made in the form of a lever with a spring-loaded hammer. 3 sound-emitting plates are arranged around the circumference of the ring evenly in the slots and their axes and are rotatably fixed to the bottom and the lid of the housing.