Abstract: A vibration buffering device is constructed in a lightweight and compact fashion, the number of parts is reduced, the assembling operation can be simplified, and generation of a noise is prevented. An annular passage and accommodating recesses, which open into the passage in pairs, are defined in a damper housing integral with a first mass member. First coil springs are retained on spring holders inserted in the passage, and second coil springs are accommodated in the accommodating recesses. A transmitting arm, placed into the passage, is coupled to a second mass member which is capable of being angularly displaced about the same axis relative to the first mass member. In a power non-transmitting state, opposite ends of the second coil springs are received by opposite ends of the accommodating recesses and are in contact with opposite ends of the spring holders.