Takakazu Uebori

Title: Takakazu Uebori: Innovator in Helicopter Technology

Introduction

Takakazu Uebori is a notable inventor based in Fuchu, Japan. He has made significant contributions to the field of helicopter technology, holding a total of 3 patents. His innovative designs focus on improving the functionality and control of helicopter rotor systems.

Latest Patents

Uebori's latest patents include a helicopter rotor head, a multirotor helicopter, and a variable pitch mechanism for helicopters. The variable pitch mechanism is designed to have a simple configuration with a minimal number of components. It allows for precise control of the pitch angle of the blades without the need for accurate adjustments. The mechanism features a pitch plate and a pitch plate boss that are slidably mounted on the outer periphery of a main mast. An output shaft of a servomotor is directly connected to a pitch lever that vertically moves the pitch plate boss. By actuating the servomotor and rotating the pitch lever, the pitch plate boss and the pitch plate can be displaced upward or downward along the main mast, thereby tilting blade holders connected to the pitch plate and changing the pitch angle of the blades.

Another significant patent is for a coaxial counter-rotating unmanned helicopter. This invention aims to configure the yaw axis control mechanism to accurately control the pitch angle of the upper rotor blade with a simple design, even without precise adjustments. A rudder control rod is inserted into the main mast of the helicopter, with its lower end connected to an output lever of the rudder servo. A mixing rod head is fixed to the upper end portion. A link mechanism connected to the upper swash plate is attached to the side surface of the mixing rod head. The vertical displacement of the mixing rod head, which moves up and down with the rudder control rod, is converted into a displacement for tilting the upper blade holder around the spindle via the link mechanism, thus changing the pitch angle of the upper rotor blades.

Career Highlights

Throughout his career, Uebori has worked with prominent companies such as Hirobo Co., Ltd. and Denso Corporation. His experience in these organizations has contributed to his expertise in helicopter technology and innovation.

Collaborations

Uebori has collaborated with notable individuals in the field, including Shunichi Suzuki and Kimio Nakamura. These partnerships have likely enhanced