摘要:
To effectively absorb shocks applied to both a rim and a cover pad of a steering wheel simultaneously or separately in spite of a simple construction, the steering wheel comprises a shock absorbing member disposed under the cover pad and sandwiched between upper and lower plates, and a spoke fixing plate for connecting radially inner ends of spokes to a middle peripheral surface of the shock absorbing member. A shock applied to the rim is mainly absorbed by the lower portion of the absorbing member by shearing deformation thereof and a shock applied to the cover pad is mainly absorbed by the upper portion of the absorbing member by compressive deformation thereof. Further, to uniformly absorb shocks applied to the cover pad at various points and in different directions, a support base having a projection is disposed under the lower plate (on which the shock absorbing member is arranged) to reduce the rigidity of the shock absorbing member. Furthermore, it is preferable to connect an additional W-shaped cross-section shock absorbing plate to a hollow cylindrical shock absorbing member via upper and lower plates for providing further uniform shock absorbing characteristics irrespective of points and directions at and in which a shock is applied.
摘要:
A safety arrangement for a driver's seat in an automotive vehicle having a steering column extending to the driver's seat. The safety arrangement is comprised of a column bracket to which the steering column is secured. The column bracket is slidably secured to a sliding block 5 fixed to vehicle body side. The column bracket is put into a slidable condition under the action of a solenoid when a driver is restrained by a seat belt, while into a fixed condition under the action of the solenoid when the driver is released from the seat belt. The column bracket is moved forward together with the steering column when an impact force is applied to a knee protector, thereby absorbing impact energy while withdrawing the steering column. Even under the fixed condition of the column bracket, an impact force applied to the steering column can be effectively absorbed by an energy absorbing mechanism provided between the steering column and the column bracket.
摘要:
A hood structure for absorbing an impact applied to a hood (31) of an automotive vehicle at collision has: a hood outer panel (33) for closing an engine room (35); at least one impact absorb body (43) disposed under the hood outer panel, for absorbing the impact applied to the hood when deformed; and an engine (37) disposed under the impact absorb body, for stopping the deformed impact absorb body. Here, to reduce head injury criterion (HIC) effectively at a shortest possible stoke of the hood outer panel, an impact energy absorption rate of the impact absorb body and a total hollow gap formed between the hood outer panel (33) and the engine (37) are both determined in such a way that an impact energy generated at collision can be absorbed in accordance with an ideal impact energy absorption waveform Cm representative of an ideal relationship between reaction force (F) and stroke (S) of the deformed hood outer panel. The ideal impact waveform Cm can be obtained by calculation on the basis of an amount of impact energy required to be absorbed at collision and in accordance with the HIC derivation formulae (1) and (2). Since the impact absorb body is deformed at collision at a relatively moderate energy absorption rate to generate a secondary reaction force required for the ideal impact waveform Cm, the head impact characteristics can be securely improved.
摘要:
A protector cap for covering a mounting bolt head has a spacer interposed between the cap and the bolt to position the cap with respect to the bolt head and to isolate the cap from the bolt head. The cap is made of a resin. The spacer is a separate member engaged with the inner surface of the cap.
摘要:
An electronic digital timer for an electronic range wherein the desired time of cooking is determined by a time setter; the time of cooking thus set is indicated in a digital fashion; a counter counts the number of pulses generated when the electronic range commences heating; and the heating operation is brought to an end when coincidence takes place between the number of counts made by the counter and a number determined corresponding to the preset time.
摘要:
An electronic range wherein a digital value showing the quantity of food being cooked is set and indicated by a food quantity-setting device; another device is provided to select the kind of food being cooked; the period of pulses generated by a pulse generator is determined by an output from said selection device; pulses emitted by the pulse generator are counted upon commencement of a food-heating operation; the counts made by the counter are indicated in the form of digits; and heating by the electronic range is brought to an end when a prescribed relationship arises between the counts made by the counter and the previously set value denoting the quantity of food.
摘要:
A hood structure for absorbing an impact applied to a hood of an automotive vehicle at collision has: a hood outer panel for closing an engine room; at least one impact absorb body disposed under the hood outer panel, for absorbing the impact applied to the hood when deformed; and an engine disposed under the impact absorb body, for stopping the deformed impact absorb body. Here, to reduce head injury criterion (HIC) effectively at a shortest possible stoke of the hood outer panel, an impact energy absorption rate of the impact absorb body and a total hollow gap formed between the hood outer panel and the engine are both determined in such a way that an impact energy generated at collision can be absorbed in accordance with an ideal impact energy absorption waveform Cm representative of an ideal relationship between reaction force and stroke of the deformed hood outer panel. The ideal impact waveform Cm can be obtained by calculation on the basis of an amount of impact energy required to be absorbed at collision and in accordance with the HIC derivation formulae (1) and (2). Since the impact absorb body is deformed at collision at a relatively moderate energy absorption rate to generate a secondary reaction force required for the ideal impact waveform Cm, the head impact characteristics can be securely improved.
摘要:
Improvements are made in a reciprocating-piston, four-stroke spark-ignition internal combustion engine of the type which has main and auxiliary combustion chambers and main and auxiliary intake valve associated respectively with the combustion chambers, wherein the auxiliary intake valve has a valve lift smaller than a valve lift of the main intake valve and wherein the duration of opening of the auxiliary intake valve is arranged to be shorter than that of the main intake valve for each of the intake strokes of the engine. The auxiliary intake stroke is preferably so operated as to start to open after the main intake valve has been opened and to fully close simultaneously as or before the main intake valve is fully closed. The improvements are intended to prevent escape of an air-fuel mixture from the auxiliary combustion chamber into the main combustion chamber during intake strokes of the engine so that the ratio between the volumes of the air-fuel mixtures in the two combustion chambers is maintained constant under varying operational conditions of the engine.
摘要:
A high-frequency heating device includes an AC power source, a high-tension transformer, a triac thyristor connected between the primary winding of the high-tension transformer and the power source, a magnetron coupled to the secondary winding of the high-tension transformer, a signal generating circuit for generating upon energization a signal at a predetermined phase of each cycle of the power source voltage, an astable multivibrator for generating pulses whose pulse width is variable, and a control circuit for generating an output signal upon receipt of both an output pulse of the astable multivibrator and output of the signal generating circuit to control the triac thyristor in an ON-OFF fashion.