Seikosha Co., Ltd.

Omron Corporation

Tomohiro Wada

Junichi Aizawa

Shoichiro Kumazawa

Satoru Stephen Yamauchi

Natsuki Hashiba

Xiaoguang Ning

Shigeki Sugano

Yoshihiro Sakamoto

In the present invention, contact between an operator and a robot that moves a workpiece is avoided, and an effect on an article is reduced. This robot controller (), which controls the operation speed of a robot () that moves a workpiece (), comprises: a prediction unit () that predicts contact from the position of a robot and the position of a person or object; and an acceleration change unit () that, when contact is predicted by the prediction unit, changes the acceleration at which the speed of the robot is reduced to perform an emergency stop in accordance with the presence of the workpiece.

Control device and control method

A timepiece with mobile decorations comprises: a roof disposed over a case body having a timepiece unit built therein; driving means to make said roof up and down while turning the same in response to a signal from the said timepiece unit; and mobile decorations disposed inside of the roof to operate and become visible from the outside while the roof is in a raised position.

Timepiece with mobile decorations

A miniaturized electromagnetic bell unit suitable for use with an alarm clock and the like is provided. The bell unit of the present invention is characterized in that it is miniaturized in such a way that a yoke to which a coil and a bell hammer are attached is incorporated within a bell and the bell is fixed to the yoke. Besides the simplicity of its structure, the advantages of the present invention are that the bell hammer can be adjusted in a simple manner through a hole drilled in the bottom of the bell; both the bell and the yoke are held fixed together simply and firmly such that a positioner is inserted into holes drilled correspondingly through the bell and the yoke while at the same time, an arm integrally extending from the yoke is fixed to a fixing member; and further, another hole is drilled in the bottom of the bell and one of two electrodes is inserted into the bell thorugh the hole while the other electrode is brought into contact with the outer surface of the bell whereby the yoke and the bell are spot-welded to each other simply and securely.

Method of spot welding parts of an electromagnetic bell unit

A miniaturized electromagnetic bell unit suitable for use with an alarm clock and the like is provided. The bell unit of the present invention is characterized in that it is miniaturized in such a way that a yoke to which a coil and a bell hammer are attached is incorporated within a bell and the bell is fixed to the yoke. Besides the simplicity of its structure, the advantages of the present invention are that the bell hammer can be adjusted in a simple manner through a hole drilled in the bottom of the bell; both the bell and the yoke are held fixed together simply and firmly such that a positioner is inserted into holes drilled correspondingly through the bell and the yoke while at the same time, an arm integrally extending from the yoke is fixed to a fixing member; and further, another hole is drilled in the bottom of the bell and one of two electrodes is inserted into the bell through the hole while the other electrode is brought into contact with the outer surface of the bell whereby the yoke and the bell are spot-welded to each other simply and securely.

Growing community of inventors

Tokyo, Japan

Tomohiro Wada