Abstract: The size of a driving portion for a sliding door is reduced. Drive mechanism drives sliding door that can move along rail provided in a lower part of a vehicle. Drive mechanism comprises: door opening and closing cables each having first end that is fixed to sliding door; and driving portion to which a. second end of door opening cable and a second end of door closing cable are fixed, wherein driving portion drives door opening cable and door closing cable. Driving portion includes: door opening drum to which the second end of door opening cable is fixed and onto which door opening cable is wound; and door closing drum to which the second end of door closing cable is fixed and onto which door closing cable is wound. Door opening drmn and door closing drum are arranged along rail between a front end and a rear end of rail.

Abstract: The crash sensor of the present invention comprises a magnet, a sensing mass made of a ferromagnetic material and attractable by the magnet, a sleeve made of a paramagnetic material and restricting the movement of the sensing mass in one direction, a pair of strips that make a closed circuit by contact with the sensing mass having moved in one direction and a body fitted with the magnet and housing the sensing mass, the sleeve and the contacts; the crash sensor further comprising a magnetic shield made of a ferromagnetic material and covering the magnet and the body. The magnetic shield forms a closed-type magnetic field by covering the magnet and the body and forms an appropriate magnetic loop in the vicinity of the sensing mass, so that the crash sensor also acts as a magnetic shield to protect itself from being influenced by outside ferromagnetic bodies and makes effective use of the magnetic force of the magnet.

Abstract: The present invention relates to a indicating system for warning airspace or threatening aircraft in aircraft collision avoidance system which provides simply and inexpensively information required for safe cruising of aircraft with respect to range of warning airspace of aircraft, positions of other aircraft involving threatening of collision, and flight courses of proximate said other aircraft involving threatening of collision.

Abstract: A rotary fluid energy translating device which comprises a casing and a couple ring rotatably supported in the casing. Static fluid pressure is applied to the couple ring at circumferentially spaced points and from both the outer and the inner side of the ring so that a couple of forces is produced in the couple ring while providing balanced static pressure on the ring at each of the circumferentially spaced points thereby to rotate the couple ring, which can be connected to a mechanical element outside the casing. By positively rotating the couple ring by means of an external drive, it is possible to operate the device as a fluid pump.