EP0162031A1

EP0162031A1 - Shoe heater

Info

Publication number: EP0162031A1
Application number: EP85870017A
Authority: EP
Inventors: François Van Haver
Original assignee: HAVER FRANCOIS VAN
Current assignee: HAVER FRANCOIS VAN
Priority date: 1984-02-10
Filing date: 1985-01-31
Publication date: 1985-11-21

Abstract

The shoe warmer has rechargeable cells supplying the electrical power for heating elements distributed inside the shoe. Bimetal strips act as switches disconnecting one or more groups of heating elements when the wanted temperature is reached. The cells are recharged from an external ac supply via a transformer. A first switch disconnects the heating elements from the cells during normal operation and a second switch disconnects them during recharging. The cells may be removed from the shoe. A potentiometer or control circuit may be provided to set the wanted temp. An LED may be used to indicate that the warmer is working. 0/1)

Description

L'invention, appelée "chauffe-souliers" consiste à munir les chaussures usuelles (1) (souliers, bottes, bottines, etc. ) d'un élément électrique chauffant (6) dont le courant est fourni par des batteries rechargeables (4). Le nombre de ces batteries, qui peuvent également être incorporées par exemple dans la semelle, sous le talon de chaque pied, dépend de la quantité de courant à fournir à l'élément chauffant, compte tenu de la température désirée et de la durée du fonctionnement. Le chargement des batteries se fait à l'aide d'un transformateur fournissant le courant continu. La tension varie selon le nombre de batteries. La fabrication de la chaussure peut prévoir la possibilité de la recharge des batteries (via 7) sans qu'elles doivent être enlevées. Chaque chaussure est munie d'un premier interrupteur (2), permettant de connecter et de déconnecter l'élément chauffant et, en plus, d'un deuxième interrupteur (3) qui coupe automatiquement le courant pendant le rechargement des batteries. Il va de soi que ce deuxième interrupteur n'est nécessaire que pour le type de fabrication qui permet le rechargement des batteries sans qu'elles doivent être enlevées. Chaque chaussure est pourvue d'un ou de plusieurs bimétaux (5) qui coupent le courant au moment où la température désirée est atteinte, et le remettent en circuit quand la température baisse. Il est possible de placer des bimétaux complémentaires pour assurer une sûreté en cas de non- fonctionnement des bimétaux susmentionnés. Les bimétaux peuvent éventuellement être remplacés par des techniques analogues. Chaque chaussure peut être pourvue d'un indicateur de puissance permettant le réglage de la température. Cela est superflu dans le type de fabrication à température fixe. Chaque chaussure peut être munie d'un led qui permet de constater que le méchanisme fonctionne.The invention, called "shoe warmers", consists in providing the usual shoes (1) (shoes, boots, boots, etc.) with an electric heating element (6) whose current is supplied by rechargeable batteries (4) . The number of these batteries, which can also be incorporated for example in the sole, under the heel of each foot, depends on the amount of current to be supplied to the heating element, taking into account the desired temperature and the duration of operation. . The batteries are charged using a transformer providing direct current. The voltage varies according to the number of batteries. The manufacture of the shoe can provide for the possibility of recharging the batteries (via 7) without having to be removed. Each shoe is provided with a first switch (2), allowing the heating element to be connected and disconnected, and, in addition, a second switch (3) which automatically cuts the current during the recharging of the batteries. It goes without saying that this second switch is only necessary for the type of manufacturing which allows recharging of the batteries without having to be removed. Each shoe is provided with one or more bi-metals (5) which cut the current when the desired temperature is reached, and switch it on again when the temperature drops. It is possible to place additional bi-metals to ensure safety in the event of the non-functioning of the above-mentioned bi-metals. Bi-metals can possibly be replaced by similar techniques. Each shoe can be fitted with a power indicator allowing the temperature to be adjusted. This is superfluous in the type of manufacturing at fixed temperature. Each shoe can be fitted with an LED which shows that the mechanism works.

Claims

I. Electric heating element, incorporated into shoes.

II. Rechargeable batteries incorporated into the shoes, to supply electrical heating elements incorporated into the shoes.

III. Rechargeable batteries incorporated in the shoes so that they can be removed for recharging or replacement.

IV. Rechargeable batteries, incorporated in the shoes so that they can be recharged without being removed from the shoes.

V. Switch on each shoe to connect and disconnect the heating element incorporated in the shoes.

VI. Switch on each shoe allowing to interrupt for the duration of recharging, the electric current supplying the heating element, incorporated in the shoes.

VII. Bi-metal or similar device (e.g. thermo-electric circuit breaker), incorporated into the shoe, controlling the electric current supplied to the heating element incorporated in the shoe.

VIII Potentiometer or switch for adjusting the temperature of the heating element also incorporated in the shoes.

IX. Led, incorporated in the shoes, allowing to check the operation of the heating element incorporated in the shoes.