I claim:
1. A reclining chair comprising:
a support base;
a chair comprising at least a seat portion;
a means for coupling a forward portion of said seat portion to said support base such that said seat portion moves substantially about a pivoting axis located adjacent said forward portion;
at least one coil spring provided adjacent said forward portion of said seat portion and between said seat portion and said support base;
a means for coupling ends of said coil spring pivotally to said seat portion and said support base;
a means for pivoting one end of said coil spring about another end of said coil spring; and
an offset crank means for driving said means for pivoting one end of said coil spring about another end thereof;
whereby by pivoting said one end of said coil spring about another end of said coil spring an effective force per unit distance of said coil spring is varied and reclining chair is made equally comfortable to sit and recline in throughout the entire range of heavy to lightweight persons.
2. A reclining chair comprising:
a support base;
a chair comprising at least a seat portion and a back portion;
a means for coupling a forward portion of said seat portion to said support base such that said seat portion moves essentially about a pivoting axis located adjacent said forward portion;
a coil spring means provided adjacent said forward portion of said seat portion and between said seat portion and said support base;
a means for coupling ends of said coil spring means pivotally to said seat portion and said support base;
a means for pivoting one end of said coil spring means about another end of said coil spring means;
a means for coupling said seat and back portions together such that when said seat portion is pivoted about said pivoting axis, said back portion simultaneously pivotally moves about a pivoting axis located above said seat portion and adjacent said back portion, said means comprising a roller coupled to said support base and a curved cam coupled to said back portion riding on said roller;
whereby relative motion between the seat portion and the back portion infinitely variable and said reclining chair is comfortable to sit in by both heavy and lightweight persons.
3. The reclining chair according to claim 1 wherein said means for pivoting said one end of said coil spring about another end thereof comprises a boomerang shaped bell crank rotatably coupled to said support base at a center thereof with a long arm thereof being driven by said offset crank means and a short arm thereof coupled to said one end of said coil spring for pivoting said one end.
4. The reclining chair according to claim 2 wherein said means for pivoting said one end of said coil spring about another end thereof comprises a boomerang shaped bell crank rotatably coupled to said support base at a center thereof with a long arm thereof being driven and a short arm thereof coupled to said one end of said coil spring for pivoting said one end.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A control system for an internal combustion engine comprising:
a control unit;
a heating-resistor type mass flow measuring apparatus including a heating resistor configured to detect mass airflow of air sucked into an internal combustion engine, an electronic circuit operatively connected to the heating resistor electrically, to output a signal corresponding to suction mass air flow, using the heating resistor; and
means for maintaining after the internal combustion engine stopped, a heating resistor temperature at least equal to the temperature during operation of the internal combustion engine until the temperature of the internal combustion engine and associated apparatus thereof installed in suction system has decreased below a generation temperature of volatile gas, said maintaining means being a separate unit independent of said heating-resistor type mass flow measuring apparatus.
2. The control system as set forth in claim 1, wherein said maintaining means maintains the heating resistor temperature at a temperature higher than or equal to the heating resistor temperature during operation of said internal combustion engine based on elapsed time after stoppage of the internal combustion engine, at least equal to the temperature during operation of the internal combustion engine after the internal combustion engine has stopped.
3. The control system as set forth in claim 1, wherein said maintaining means maintains the heating resistor temperature at a temperature higher than or equal to the heating resistor temperature during operation of said internal combustion engine until a coolant temperature or an intake air temperature of said internal combustion engine becomes lower than or equal to a predetermined temperature.
4. The control system as set forth in claim 2, wherein a period to maintain the heating resistor temperature after stoppage of the internal combustion engine, higher than or equal to the temperature higher than or equal to the heating resistor temperature during operation of said internal combustion engine, is substantially equal to a period while a cooling fan of the internal combustion engine is driven after stoppage of the engine.
5. The control system as set forth in claim 3, wherein a power source is common for said heating resistor and said cooling fan and after stopping engine, while power is supplied to said cooling fan, the temperature of said heating resistor is maintained at the temperature higher than or equal to that while the internal combustion engine is driven.
6. The control system as set forth in claim 1, wherein an air flow rate dependency is provided for a heating temperature of said heating resistor while air flow rate is very low, for maintaining heating temperature high so that temperature of said heating resistor is maintained higher than or equal to the temperature during operation of said internal combustion engine as long as power supply for said heating-resistor type mass flow measuring apparatus is maintained even after stoppage of said internal combustion engine.