Abstract: A stop-position controlling device for an electric windshield wiper is disclosed, which comprises an oscillation means for a wiper blade and a switch mechanism provide with armature shortcircuiting contacts for forcedly stopping the wiper blade at a predetermined position under a turn-off state of a wiper switch. In this device, the armature shortcircuiting contacts are shifted at plural positions for forcedly stopping the wiper motor at different positions and a turnover means is further arranged therefor, or a contact moving means is disposed for displacing the armature shortcircuiting contacts to plural positions.

Abstract: In an automotive windshield wiper control system, a rain sensor provides a rain condition-indicative signal useful in controlling the wiper in its intermittent operation mode. That signal is integrated to yield a value representing rain accumulation on the windshield, and when the integrated value exceeds a given threshold, the wiper is reciprocated once to clear the windshield. In order to prevent arhythmic wiper operation, the signal integrator is disabled during wiper operation so that the integrated value will not approach the threshold too soon after or even before the end of the preceding wiper operation cycle.

Abstract: A door lock/unlock system for an automotive vehicle having a safety means for preventing a driving unit for electrically driving a door lock mechanism between a door lock position and an unlock position from being damaged by mis-operation. The safety means inhibits power supply to the driving unit when the door locking operation is made while the door lock mechanism is in the lock position and when the door unlocking operation is made while the door lock mechanism is in the unlock position.

Abstract: A sensor detects the flow rate of fuel returned from an internal combustion engine to a fuel tank to control a pump motor in such a manner that an appropriate amount of fuel is supplied from the pump to the engine.

Abstract: A filter device for a fuel tank comprises an upper wall for supporting in position a tubular member such as a fuel line or a pump casing, a bottom wall disposed at a distance from the upper wall, and a cylindrical wall supporting in position a mesh encircling the space intervening between the upper wall and the bottom wall. The cylindrical wall and either the upper wall or the bottom wall are integrally molded of a plastic material in one integral part, the bottom wall or the upper wall is molded separately of a plastic material in a separate part to be fitted to the free end of the cylindrical wall in the one integral part, one of the two parts which has an outer fitting peripheral wall surface is formed of a plastic material having a smaller rate of dimensional change, and the other part which has an inner fitting peripheral wall surface is formed of a plastic material having a larger rate of dimensional change.

Abstract: A wiper device equipped with a rise up mechanism, including a motor, a blade, a wiper pivot, a motor arm which rotates in one direction during the starting and wiping operations of the blade and which rotates in a reverse direction during the parking and stopping operations of the blade, a connecting rod reciprocating in response to the rotation of the motor arm to swing the wiper pivot, a retainer for retaining the connecting rod, an eccentric member for rotating together with or relative to the retainer, a friction spring disposed between the eccentric member and the retainer for permitting the rotation of the eccentric member relative to the retainer only just after the starting of the blade or just before the parking and stopping of the blade, and a cam mechanism for rotating the eccentric member together with the retainer during all operations except the operation during which the eccentric member rotates relative to the retainer just after the starting of the blade or just before the parking and stoppin

Abstract: An air-cooled wiper motor having self-cooling fan for use in vehicles is disclosed. The wiper motor comprises a motor yoke, a rotatable armature shaft provided in the yoke, a reduction gear mechanism provided at one end of the armature shaft, a vehicle wiper blade connected to the armature shaft through the reduction gear mechanism and being swung reciprocally, a self-cooling fan provided to the other projected end of the armature shaft, a fan cover provided around the fan for forming a ventilation duct having a width not exceeding an outer diameter of the yoke in one diametrical direction between the cover and the outer diameter portion of the yoke, and a bearing having an inner race secured to the armature shaft and an outer race secured to a gear housing of the reduction gear mechanism thereby to hold thrust loads in both directions received by the armature shaft.

Abstract: A device for pumping fluid includes a main pump device and an auxiliary device integrally fixed thereto. The auxiliary device can function as a damper, cut-off valve, check valve and relief valve. The auxiliary device includes a first and second room separated by a diaphragm. The first room is connected to the fuel supply passage of the main pump device. One end of the outlet passage of the auxiliary device is connected to the first room by way of a valve mechanism consisting of a valve body and valve seat. The valve body is actuated by deforming of the diaphragm in response to the change of the fluid pressure within the first room. A relief passage is formed in the valve body to connect the first room with the second room. A relief valve such as a ball valve is placed in cooperation with the relief passage.

Abstract: A device for detecting a revolution number of a connection shaft is disclosed. The device comprises a permanent magnet body attached to the connection shaft and a pulse generating means disposed apart from the magnet body, wherein the pulse generating means is arranged in a housing isolated from a casing for the connection shaft.

Abstract: An automatic speed control device for a vehicle or a stationary generator for emergency use is disclosed.