摘要:
A motor (90) having a tubular yoke (110) provided at one side end with a side wall (109), wherein a driver unit (91) for control-driving the motor (90) is electrically connected via a feed opening (103) and a signal line opening (104) to an end on the side wall (109) side of the interior of the yoke (110), and an FET (95) is disposed inside the yoke (110) so as to be in direct contact with the side wall (109). A driver unit (191) in which a drive-control means and a brush holder (41) are integrated with each other may be disposed and fixed on the outer surface of a side wall (209), and a brush (23) is inserted via an opening (203) formed in the side wall (209) and allowed to pass through the yoke (210). The above arrangements make it possible to integrally provide a control-drive unit and a device body without lowering an assembly work efficiency, in a motor provided with a feed unit at the innermost part of the yoke which is closed at one end.
摘要:
An electric power steering unit comprises a rack-shaft 2 to be coupled to the guiding wheels of a vehicle, an electric motor 1 coaxially arranged around the rack-shaft 2, a ball screw mechanism 3 for connecting a nut section 19 with a screw section 30 of the rack-shaft 2 by disposing ball 31 therebetween and for transmitting the rotary power of the motor 1 to the rack-shaft 2 as assisting power for steering, and a housing B comprising an angular bearing 4 for rotatably supporting the ball screw mechanism 3. The angular bearing 4 comprising outer rings 33a, 33b pressed and fixed in an axial direction in the housing B by an outer ring fixing ring 32, and balls 34a, 34b which is provided between the rings 33a, 33b and the nut 19 and which is in contact with the nut 19 at a position where a stress is not caused at the ball 31 by a pressure force applied to the rings 33a, 33b.
摘要:
L'enrobé est préparé à froid en malaxant les granulats avec un monoester méthylique dérivé d'une huile végétale et un bitume dur en poudre qui se dissout dans l'ester en formant un enrobage de liant bitumineux. L'enrobé est préparé et répandu à froid, sans utilisation d'eau ni d'additif nuisible à l'environnement. On évite donc les inconvénients économiques et écologiques des enrobés à chaud et des enrobés à froid utilisant des liants en émulsion aqueuse.
摘要:
In an opposed wiping type wiper apparatus, left and right wiper blades which perform wiping operation with a predetermined preceding-following relationship maintained are layered vertically at their lower returning positions. If the predetermined preceding-following relationship is changed, the speed of the wiper blade which has overtaken is arranged to be higher than the wiper blade which has been overtaken, by replacing the control forms for the left and right wiper blades with each other, until upper returning positions. In this manner, the wiper blades are prevented from being locked and stopped when the preceding-following relationship between the left and right wiper blades is changed. When the timer of the wiper blade which is to be in the follower side during normal operation is not reset but overflows among timers which are respectively reset pulse signals generated in accordance with rotations of motors, the output of the motor which drives the wiper blade which is to be in the follower side during normal operation is increased. If the wiper blade which is to be in the preceding side during normal operation is operated by thus increasing the motor output, it is determined that the apparatus has stopped due to change of the preceding-following relationship between the wiper blades, and the wiper blades are operated by changing the preceding-following relationship. In this manner, the wiper blades are prevented from being locked even in case where the preceding-following relationship between the wiper blades is changed without causing changes of position angles. If the wiper blade 2a in the preceding side stops for a predetermined time or more within a common region 9 set as the range where wiping regions of both the wiper blades 2a and 2b overlap each other during driving of the wiper blade 2a in the preceding side, the wiper blade 2b in the follower side is operated so as to push up the wiper blade 2a in the preceding side, so that a load applied to the wiper blades is effectively overcome with use of the outputs from two motors.
摘要:
There is provided a method for controlling an opposed wiping type wiper apparatus having a pair of wiper blades (2a,2b) driven by also a couple of motors (3a,3b), respectively. The wiper apparatus includes detecting means (11a,11b) for detecting the angular position of the each wiper blade (2a,2b), calculating means for calculating the angular distance of one wiper blade (2a) relative to the other wiper blade (2b), memory means for memorizing therein a reference table of target angular distances in advance for the wiper blades (2a,2b), and control means (12) for controlling the pair of wiper blades (2a,2b) so that the angular distance of each of the wiper blades (2a,2b) is brought close to the corresponding target angular distance. The wiper apparatus also may control the wiper blades (2a,2b) not only the angular distance relative to the other but desired velocity. In this case, the wiper apparatus further includes a reference table of target velocities and the wiper blades (2a,2b) are controlled based on the target angular distance and target velocity.
摘要:
The sealing composition contains powders comprised of, by mass, 70 to 90 % aluminium, 5 to 25 % silicon, 0 to 5 % silica and 0.1 to 5 % moderator metal, said powders being dispersed in a carrier comprising an organic binder disolved in a solvent and a mineral binder. The composition is applied to the faces to be assembled of ceramic part and a part made of refractory alloy or super-alloy, and the assembly is heated in order to eliminate said carrier and to form between the two parts a layer of syncrystallized mullite with the ceramic.
摘要:
A device (3) inserted through a tubular wall (1) by means of a cylindrical flange (11) surrounding a through-bore (6) which is used to insert a tool for flaving the annular region (15) defined by the flange around the bore on the inside of said wall (1), so that the device may be mechanically secured thereto. The bore (6) is then plugged with a disc (17) and the whole assembly is sealed by brazing.
摘要:
Elastomeric particles, which have a tendency to agglomerate, are rendered non-agglomerating by contacting those particles with a molten thermoplastic resin, and then cooling the particles to a temperature below the melting or softening point of the thermoplastic resin.