摘要:
A soundproof grommet is provided with a base body including an engaging groove provided on an outer surface thereof, a conical wall integrally connected therewith and a main tube portion integrally projected from the conical wall, a soundproof envelope integrally connected with the base body, and one or more extra tube portions penetrating the conical wall and the soundproof envelope in an integral manner. The soundproof envelope is further provided with a wire supporting portion. A wiring harness is inserted to and in close contact with the main tube portion and the wire supporting portion so that the base body and the soundproof envelope form an airtight chamber.
摘要:
A logic test having less over-head for testing a logic circuit in a chip is implemented by constituting a test circuit in the chip without introducing a novel device process of FPGA. A memory of a self-configuration type is provided in the chip and a test circuit is constituted in the memory of a self-configuration type or an ordinary memory through a tester HDL, thereby testing other memories and logic circuits in the chip. The test circuit is reconstituted such that the memory used in the structure of the test circuit can be operated as an ordinary memory.
摘要:
A taper correcting apparatus for a grinding machine comprises: workpiece supporting means for supporting a workpiece in parallel with a grinding wheel spindle; a cutting and feeding device which moves back and forth a cylindrical grinding wheel with respect to said workpiece; a wheel slide which is attached to a bed so as to be movable back and forth with respect to said workpiece; a pair of grinding wheel bearing pedestals which rotatably support ends of said grinding wheel spindle via bearings with respect to said wheel slide, respectively; a first grinding wheel bearing pedestal support which is fixed to said wheel slide, and which clampingly supports one of said grinding wheel bearing pedestals; a second grinding wheel bearing pedestal support which is attached so as to be rotatable about a round shaft, and which clampingly supports another one of said grinding wheel bearing pedestals, said round shaft being attached below said grinding wheel spindle to said wheel slide in parallel with the center line of said workpiece; a pressurring device which presses said second grinding wheel bearing pedestal support to rotate said second grinding wheel bearing pedestal support about said round shaft, thereby changing a distance between a center of said grinding wheel spindle and a center of said workpiece; and controlling means for controlling a pressing amount of said pressurring device, so that parallelism between a center line of said workpiece and a center line of said grinding wheel spindle is corrected.
摘要:
The present invention relates to chroman derivatives of the formula (I): ##STR1## [wherin R.sup.1 represents a hydrogen atom, a halogen atom, a C.sub.1-6 alkyl group, a C.sub.1-6 alkoxy group, a C.sub.3-6 alkoxymethyl group, etc., R.sup.3 and R.sup.4 each independently represent a hydrogen atom, a C.sub.1-6 alkyl group, etc., R.sup.5 represents a hydroxyl group or a C.sub.1-6 alkylcarbonyloxyl group or forms a bond together with R.sup.5, R.sup.6 represents a hydrogen atom or forms a bond together with R.sup.5, R.sup.7 and R.sup.8 each independently represent a hydrogen atom, a C.sub.1-6 alkyl group, a C.sub.3-6 cycloalkyl group, a phenyl group, etc. n is 0 or an integer of 1, 2, 3 or 4, W represents a phenyl group, etc., X represents C.dbd.O, CH.sub.2, SO.sub.2, etc., Y represents NR.sup.17 (in which R.sup.17 represents a hydrogen atom, a C.sub.1-4 alkyl group, a phenyl group, etc.), etc., Z does not exist or represents CH.sub.2 or NR.sup.18 (R.sup.18 represents a hydrogen atom, a C.sub.1-4 alkyl group, or a phenyl group, etc.)] or their salts.
摘要:
There are provided novel and optically active 2,2-dimethyl-1,3-dioxin-4-ones which are useful as starting materials for physiologically active compounds, functional materials or the like. Provided are optically active 5,6-epoxyhexanoic acid esters and novel optically active 6-substituted tetrahydropyran-2-one derivatives. That is, optically active 6-chloromethyltetrahydropyran-2-one can be synthesized by lactonizing optically active 2,2-dimethyl-6-(3-chloro-2-hydroxypropyl)-1,3-dioxin-4-one to form optically active 6-chloromethyltetrahydropyran-2,4-dione; reacting the thus formed compound with hydrogen in the presence of a catalyst to obtain optically active 6-chloromethyl-4-hydroxytetrahydropyran-2-one; subjecting this compound to a dehydration reaction, thereby obtaining optically active 6-chloromethyldihydropyran-2-one; reacting this compound with hydrogen in the presence of a catalyst to form optically active 6-chloromethyltetrahydropyran-2-one; and then treating this compound under basic conditions to prepare an optically active 5,6-epoxyhexanoic acid ester represented by the formula (6) ##STR1## (wherein the symbol * represents an asymmetric carbon atom, and R is a methyl group or an ethyl group).
摘要:
A positioning apparatus for positioning an arm of an industrial robot comprises a frame member connected to the robot arm and being movably supported by a frame-supporting member. The frame-supporting member is movably mounted within an upstanding hollow sleeve of a stationary base, and a bearing is formed between an outer peripheral surface portion of the frame-supporting member and an inner peripheral surface portion of the base hollow sleeve portion for slidably mounting the frame-supporting member to undergo linear and angular sliding movements relative to the base hollow sleeve portion. A rotary motor effects angular driving movement of the frame-supporting member, and a linear motor effects linear movement of the frame-supporting member to thereby accurately position the robot arm. By such a construction, the frame-supporting member is mounted for angular and linear sliding movements relative to the base hollow sleeve portion by a single bearing.
摘要:
A casing includes a first casing and a second casing that sandwich an elastic member, wherein the first casing includes a pressed portion that is pressed by the elastic member, and an engaging portion adjacent to the pressed portion that has a flange protruding toward the pressed portion that engages with the second casing, and the pressed portion is flat in a region corresponding to at least the engaging portion.
摘要:
A storage cell includes a storage element including first and second electrodes which are opposite to each other in a predetermined direction, a first terminal bonded to the first electrode, a second terminal bonded to the second electrode, and an outer resin covering the storage element to expose an outer surface of the first terminal and an outer surface of the second terminal from the outer resin. The storage element has substantially a rectangular shape viewing from the predetermined direction. The outer resin has substantially a rectangular shape viewing from the predetermined direction. The outer resin has first and second surfaces opposite to each other, and has a third surface connected with the first surface and the second surface. The first terminal is exposed on the first surface of the outer resin. The second terminal has a shape extending beyond the storage element along the first and third surfaces, and is exposed on the first surface. This storage cell has a small size, a large capacitance, and high reliability.
摘要:
When a vertical acceleration is applied to a vehicle, the foot of a vehicle operator placed on the accelerator pedal may apply an unintended force to the accelerator pedal owing to the shock of such accelerations and vibrations and/or the inertia force of the vehicle operator's foot applied to the accelerator pedal, and this may cause an inadvertent depressing or releasing of the accelerator pedal. To overcome this problem, an engine control unit corrects the output signal of an accelerator pedal that governs the output of the engine according to the detected vertical acceleration of the vehicle so that the unintended change in the output of the engine which is caused by an external force applied to the accelerator pedal and may cause an unintended acceleration or deceleration of the engine can be canceled.
摘要:
A display control apparatus and a control method for controlling display of a display unit are provided. The display control apparatus detects an orientation of the display unit and controls a display of the display unit in accordance with the detected orientation of the display unit. The screen of the display unit is divided into a first display area, where a display layout is changed in accordance with the orientation of the display unit, and a second display area where a display layout is not changed in accordance with the orientation of the display unit. The display control unit makes the second display area display a first window which changes in accordance with a function to be executed, and makes the first display area display a second window which does not change in accordance with a function to be executed.