US 4,417,870 AGranted

Liquid fuel combustion apparatus

AssigneeToshiba Heating Appliances Co., Ltd.

InventorsShigeru Nakamura, Yoshihiko Ueki, Hiroshi Takachi

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Abstract

A liquid fuel combustion apparatus comprises a combustion cylinder for supporting a wick to be vertically movable between a combustion position and an extinguished position, a rotating shaft connected to said wick for raising and lowering said wick, a driving motor, rotational force transmitting mechanism for rotating the shaft in one direction to thereby raise the wick to the combustion position, the rotational force transmitting mechanism being automatically disengaged from said rotating shaft when the wick arrives at the combustion position, a spring charged with the rotational force in the other direction of the rotating shaft as a result of the rotation of the rotating shaft in the one direction, holding mechanism for preventing the rotation of the rotating shaft in the other direction by the spring so as to hold the wick in the combustion position, and releasing mechanism for releasing the holding operation of said holding mechanism.

A liquid fuel combustion apparatus comprising:

(a) a wick holder;
(b) first means for vertically moving said wick holder between a raised combustion position and a lowered extinguished position, said means including a rotatable shaft;
(c) a driving motor;
(d) rotational force transmitting means operatively connecting said driving motor to said rotatable shaft for transmitting the rotational force of said driving motor to said rotatable shaft so as to rotate said rotatable shaft in a first direction, thereby moving said wick holder vertically from its lowered extinguished position to its raised combustion position, said rotational force transmitting means comprising:
(i) a clutch cam fixed on said rotatable shaft;
(ii) a clutch supporting disc operatively connected to said driving motor such that rotation of said driving motor causes rotation of said clutch supporting disc;
and
(iii) a clutch carried by said clutch supporting disc in position:
(A) to engage said clutch cam during rotation of said clutch supporting disc, thereby transmitting the rotational force of said driving motor to said rotatable shaft and causing said rotatable shaft to rotate in said first direction, and
(B) to disengage from said clutch cam when said wick holder has reached its raised combustion position;
(e) second means for automatically disengaging said driving motor when said wick holder has reached its raised combustion position;
(f) a spring which is operatively connected to said rotatable shaft so as to be charged by the rotation of said rotatable shaft in said first direction and so as to rotate said rotatable shaft in the opposite direction upon discharge;
(g) holding means operatively connected to said rotational force transmitting means for preventing the rotation of said rotatable shaft in said opposite direction under the urging of said spring;
and
(h) releasing means for releasing said holding means, thereby permitting said wick holder to return to its lowered extinguished position under the urging of said spring.

12 more elements

Abstract

Claims10