Takigen Manufacturing Co. Ltd.

Hitachi-johnson Controls Air Conditioning, Inc.

Shunji Sasaki

Atsuhiko Yokozeki

Yoshiyuki Yamanashi

Hiroyasu Yoneyama

An air-conditioner which performs an appropriate control in the event of a leak of refrigerant. The air-conditioner includes a refrigerant circuit, a refrigerant leak sensor which senses a leak of refrigerant in the refrigerant circuit, an indoor fan which delivers air to the indoor heat exchanger, and an indoor control circuit which, upon sensing a leak of refrigerant by the refrigerant leak sensor, controls the indoor fan based on whether the refrigerant sealed in the refrigerant circuit is flammable.

Air-conditioner

An embedded-type handle assembly may have its lock bars arranged either horizontally or vertically. In the assembly: a shaft 9 is rotatably inserted in a cylindrical bearing portion 8 of a casing 1; a link plate 18 has a circular hole 16 through which the link plate 18 is mounted on the shaft 9 in an insertion manner; a lock bar 20 has its base-end portion connected with one end 19 of the link plate 18 through a pivot 27; a lock bar 23 has its base-end portion connected with the other end 22 of the link plate 18 through a pivot 28; the link plate 18 has a follower surface 25 in a side surface of the other end portion 22, the surface 25 being pushed by the operating-foot plate 5 of the handle 2; and, the link plate 18 has a follower projection 26 in a side surface of its intermediate portion, the projection 26 being pushed by the operating-foot plate 5 of the handle 2.

Embedded-type handle assembly

A removable lock handle assembly comprises a door side casing, a disk-like drive member, an eccentric drive projection provided on the rear surface of the drive member, a driven projection provided on the front surface of the drive member, a removable lock handle having a driven projection to be engaged with the driven projection of the drive member for rotation thereof when the handle is inserted into the casing through a front handle insertion hole thereof, a coil spring fitted in an annular groove formed in a central part of the front surface of the drive member, a latch provided in the casing such as to be projected and retreated from and into the casing through a side hole formed therein, a shutter provided on the back side of the handle insertion hole for closing the hole, the drive member being inserted in the casing, the latch having a driven projection for engagement with the drive projection of the drive member, a return compression coil spring received in a blind hole formed in the latch on the side thereof opposite an inclined cam surface and on the side of the driven projection, a return compression coil spring provided between the latch and the inner surface of the casing, and a rear lid fitted in and secured by a screw to a rear portion of the casing, the latch being retreated into the casing when the drive member is turned by the removable lock handle.

Growing community of inventors

Tokyo, Japan

Shunji Sasaki