JP2002311161A5 - - Google Patents

Claims (15)

A timepiece with an eccentric weight having a movement that displays the time with a hand and the swingable eccentric weight is provided,
A timepiece with an eccentric weight, comprising vibration absorbing means for absorbing vibration generated when the eccentric weight collides with the movement. 2. The eccentric weight according to claim 1, wherein the vibration absorbing means is provided between the eccentric weight and the movement, and a buffer material made of an elastic body is employed. Watch with clock. The timepiece with an eccentric weight according to claim 2, wherein the cushioning material is a relatively soft elastic body made of any one of rubber, soft synthetic resin, and thermoplastic elastomer. The timepiece with an eccentric weight according to claim 2, wherein the cushioning material is an elastic body formed of a hard metal in a spring shape. The timepiece with an eccentric weight according to any one of claims 2 to 4, wherein the cushioning material has a back surface that is an adhesive surface that can be covered with release paper, and is fixed by the adhesive surface. A watch with an eccentric weight. In the timepiece with an eccentric weight according to any one of claims 2 to 5,
The eccentric weight is a rotary weight provided rotatably on the movement,
The rotating weight has an arm portion rotatably supported by the movement, and a weight portion provided at a portion serving as a free end of the arm portion,
The timepiece with an eccentric weight, wherein the cushioning material is an elastic body provided on one of the rotating weight and the movement and protruding toward the other. 7. The timepiece with an eccentric weight according to claim 6, wherein the rigidity of the arm portion is set so that a natural frequency of the rotating weight is 100 Hz or more when the rotating weight vibrates longitudinally in a direction intersecting a rotating surface thereof. A timepiece with an eccentric weight, characterized by being set. 8. The timepiece with an eccentric weight according to claim 6, wherein the arm portion is fixed to a rotation shaft provided in the movement with a screw penetrating the arm portion, and the head portion of the screw. An eccentric weight is provided between the arm portion and the arm portion, and between the arm portion and the rotating shaft, respectively, and a damping material that suppresses the longitudinal vibration of the rotating weight is interposed therebetween. Watch with clock. The timepiece with an eccentric weight according to claim 8, wherein the damping material is a relatively soft elastic body made of any one of rubber, a soft synthetic resin, and a thermoplastic elastomer. The timepiece with an eccentric weight according to claim 9, wherein the damping material is an elastic body formed of a hard metal in a spring shape. The timepiece with an eccentric weight according to any one of claims 8 to 11, wherein the damping material has a back surface that is an adhesive surface that can be covered with release paper, and is fixed by the adhesive surface. Features a watch with an eccentric weight. The timepiece with an eccentric weight according to any one of claims 1 to 11, wherein the movement includes a mainspring for rotationally driving the pointer, a wheel train for transmitting a driving force of the mainspring, A timepiece with an eccentric weight, characterized in that a speed control means for controlling the rotational speed is provided. 13. The timepiece with an eccentric weight according to claim 12, further comprising a generator to which the driving force of the mainspring is transmitted via the wheel train, and the speed control means is operated with electric power generated by the generator. A timepiece with an eccentric weight, which controls the rotational speed of a rotor provided in the generator. 13. The eccentric weight timepiece according to claim 12, wherein the speed control means rotates an escape wheel at a predetermined rotational speed with an ankle engaged with a periodically vibrating balance. Watch with clock. The timepiece with an eccentric weight according to any one of claims 1 to 14, wherein the movement includes a train wheel including a plurality of gears connected to the hands, and a step motor that rotationally drives the train wheel. A timepiece with an eccentric weight, characterized by being provided with speed adjusting means for controlling the rotational speed of the step motor.