DE202018102996U1 - Heating device for sports shoe - Google Patents

Abstract

Inner shoe (2) for a sports shoe, which has a heating device (3), wherein the device (3) has at least one heating element (4), at least one element (6) for storing electrical energy, characterized in that the heating device (3 ) has a temperature sensor (8) which is arranged at a distance from the heating element (4).

Description

The present invention relates to the heating device which equips the shoe, in particular the winter sports shoes.

The present invention relates in particular to a heating device which equips the inner boot of a ski boot.

Skiing takes place in an environment and under climatic conditions, which can be cold, even extremely cold. For certain practitioners, it is necessary to provide means to heat or warm the feet during exercise.

For this purpose, the document proposes DE 10 2010 055 761 the insertion of a heater in an inner boot before. The device in question comprises a heating element arranged vertically in a manner to surround the front part of the user's foot. In use, such a system proves to be uncomfortable, since the electrical resistances, which ensure the heating, are at the level of lateral edges of the foot. The lack of comfort is considerable for the users, who have a larger foot than the average. In this case, in fact, the lateral edges of the foot compress the side foams as well as the heating element for the foot. Furthermore, the control of the heating element only allows to increase or decrease the power of the heating element, but in no case to define a set point associated with the comfort perception of the user.

It is an object of the present invention to overcome the drawbacks of the prior art and, more particularly, to provide a shoe equipped with a heating device which improves the comfort of the user.

The object of the invention is achieved by providing an inner boot for a shoe, the heating device of which comprises at least one heating element, an element for storing electrical energy and a temperature sensor, which is arranged at a distance from the heating element.

The object of the invention is also achieved by providing a ski boot, which is equipped with an inner boot, which has means for controlling the internal temperature.

• - paarweise Zuordnen der Heizvorrichtung des Innenschuhs mit dem Computerprogrammprodukt, welches in dem Speicher der persönlichen elektronischen Einrichtung gespeichert ist;
• - Definieren eines Temperatursollwerts;
• - Festlegen des Moments, ab welchem der Temperatursollwert durch die Heizvorrichtung angewendet werden soll, und/oder der Zeitdauer, über welche der Temperatursollwert angewendet werden wird.

The object of the invention is further achieved by providing a shoe and heating assembly comprising an innerboot for a sports shoe and a personal electronic device provided with a non-volatile memory on which a computer program product is stored, characterized in that the Liner is equipped with a heating device having at least one heating element, an element for storing electrical energy, a control interface and a temperature sensor, which is arranged at a distance from the heating element, and that the computer program product comprises the following steps:

• pairing the heating device of the inner boot with the computer program product stored in the memory of the personal electronic device;
• - defining a temperature setpoint;
• - Determining the moment from which the temperature setpoint is to be applied by the heater and / or the time over which the temperature setpoint will be applied.

• 1 ist eine Ansicht eines Skischuhs gemäß einer ersten Ausführungsform der Erfindung;
• 2 ist eine Ansicht des Innenschuhs;
• 3 ist eine Explosionsansicht des Innenschuhs der 2;
• 4 ist eine Ansicht des Heizelements und des Fühlers;
• 5 ist eine Ansicht des Heizelements und des Fühlers gemäß einer Ausführungsvariante; und
• 6 ist eine schematische Ansicht der Steuerschnittstelle der Heizvorrichtung.

The object of the invention will be better understood in light of the description to which the attached drawings are appended.

• 1 is a view of a ski boot according to a first embodiment of the invention;
• 2 is a view of the liner;
• 3 is an exploded view of the liner of the 2 ;
• 4 is a view of the heating element and the sensor;
• 5 is a view of the heating element and the sensor according to an embodiment; and
• 6 is a schematic view of the control interface of the heater.

The 1 shows a rear perspective view of a ski boot. In a known manner, it comprises a stiff shell 11 , inside which an inner shoe 2 is used.

The 2 shows in a perspective rear view of the liner 2 , This is made for assembly via a seam or a gluing of a plurality of surface elements of foam material, of a fabric or of a plastic material. The liner includes in a known manner a sole to which a lateral flank and a medial flank are attached. The two flanks or side elements unite on the one hand on the back of the liner at the height of the heel and on the other hand at the front at the level of the tip or the front end of the foot. At the level of the front of the foot, the inner shoe takes the form of a shell, which completely surrounds the front of the foot. This shell is through the front part of the sole, the front end 21 the lateral flank, the front end 22 the medial flank and a substantially horizontal platform 23 educated. When the user's foot is in the shoe, the platform is opposite the tops of the foot from the metatarsophalangeal articulation zone to the toe end. The liner includes a collar 24 , which is obtained by molding a plastic material.

The 3 shows an exploded view and exploded view of an inner shoe 2 which allows the arrangement of the various constituent components of the heating device 3 to see. This includes a heating element 4 , at least one element 6 for storing electrical energy and a control interface 5 , All of these elements are connected by electrical cables of a small diameter, since the currents which are necessary for the functioning of the heater are small.

The heating element is in the platform 23 , ie above the front part of the foot, in particular at the level of the metatarsophalangeal articulation and, moreover, in the direction of the toes. This arrangement is particularly advantageous in the proviso that these are the ends which cool down the fastest. On the other hand, it is a zone of the shoe which is rarely compressed against the foot, which has the effect of ensuring ambient heating of the entire front part of the shoe rather than heating which is concentrated only on the zone of the foot located opposite of the heating element.

How to do it in the 4 can see is the heating element 4 through a cloth 41 formed, in which an electrical wire 42 is used serpentine or wound on itself. The greater the density of this fabric, the more efficient the heating element will be. In practice, the density of the cloth will be such that each wire of the electrical wire of the cloth is separated from another wire of the wire of the cloth by a distance between 1 mm and 5 mm. The diameter of the electrical wires forming the cloth may be slightly less than that of the cables 9 be which the electrical energy from the storage element 6 up to the heating element 4 forward. Thus, the heating effect, which is realized by a Joule effect, can be increased.

To facilitate the mounting of the heating element in the interior of the inner shoe, the cloth is stuck 41 on a textile band 43 which is subsequently adhered to one of the materials forming the innerboot.

The energy storage elements are arranged in the upper part of the liner. They are two in number, in a way to increase the autonomy of the device and reduce the space requirement of each of the batteries. In practice, batteries similar to those used in cell phones whose dimensions are reduced to allow them to be placed in the interior of the liner without harm to the user's foot are used that this causes an external broadening or enlargement.

For this purpose, one will prefer batteries whose thickness is less than 10 mm, preferably less than 7.5 mm. The other dimensions of the battery are less than 60 mm.

How to do it in the 2 see, the batteries are laterally from each side of the liner on the inner surface of the collar 21 arranged. Projecting ribs formed on the inner surface of the collar allow to define recesses into which the batteries can be inserted and which ensure a lasting hold of these last in place.

The heater further includes a connector 7 which allows to connect a battery charger (not shown).

The control interface 5 is disposed on the tip of the liner in a manner that, even when the liner is inserted in the shell, the user can easily operate the interface.

The 6 schematically shows the control interface 5 the heater. The interface has an electrical circuit, the details of which are shown below, a control button 51 and a plurality of diodes 55 ,

• - 0 ausgeschaltet
• - 1 geringes Heizen
• - 2 mäßiges Heizen
• - 3 starkes Heizen

In a first embodiment of the ski boot, which is equipped with a heating device, the user acts directly and manually on the control interface. The control button is a simple push-button which, at each pressure, causes a state change of the heater according to a change cycle comprising four stages:

• - 0 off
• - 1 low heating
• - 2 moderate heating
• - 3 strong heating

The diodes 55 change their state with the state change of the device: blue for the low heating, green for the moderate heating and red for the strong heating. They are of course switched off when the device is not in operation.

In a second embodiment of a ski boot according to the invention, the user controls and programs the heating device via a personal electronic device. This electronic device may be a computer provided with communication means. The embodiment described here is an intelligent mobile phone 58 or smartphone.

The electrical circuit of the control interface 5 further includes a transceiver 54 , a store 53 and a central processing unit 52 , The intelligent mobile phone is equipped with software for communication with the control interface 5 via a standard protocol, such as the Bluetooth protocol ^© .

How to do it in the 4 can see is a sensor 8th the temperature with the control interface 5 connected. The feeler 8th is located at a distance from the heating element and not in its immediate vicinity.

The presence of the sensor has as its object to allow an automatic control of the comfort of the user while saving batteries or to save them.

To assure proper operation within the scope of the invention, the probe is located at a distance "d" between 5 and 30 mm from the heating element 4 away. This ensures optimum functioning, while the probe or the sensor is arranged at a distance "d" between 5 and 15 mm. In a variant, which in the 5 is shown, the sensor may optionally on the textile tape 43 be arranged, if this has a sufficiently large surface area to allow the arrangement of the sensor and the heating element at a distance "d", which is sufficiently removed from each other.

The assembly of the innerboot and the personal electronic device constitutes a heating and footwear unit, which makes it possible to improve the comfort of the user. The electronic device, in this case a telephone, is equipped with a computer program stored in a non-volatile memory which itself is provided for the functioning of the heating device of the inner shoe. In advance, the user will perform what is necessary to upload the computer program in question, for example, in the form of an application that is specifically designed and compatible with the phone's execution system or operating system (eg, Android or IOS). Then, the step of pairing between the telephone and the heater is carried out. Once these steps have been implemented in advance, the user can use the computer program to determine, on the one hand, a temperature setpoint and, on the other hand, a moment of the application of the setpoint value and / or a time duration of application of the setpoint value.

For example, in one of the conditions of use of the user's heating and footwear, the user selects a temperature setpoint of 12 ° C and selects immediate application for a period of 15 minutes corresponding to the amount of time he spends in the chairlift.

Alternatively, in another condition of use, the user programs the heating and footwear on the day before his ski trip, his shoes 30 To heat up minutes before the estimated start of the ski tour.

In a third usage condition of the invention, the user selects to determine an intermediate target value which is applied by the heater only for a period of 5 minutes every 20 minutes period. This latter usage mode is a mode of energy saving.

These three conditions of use are but a few of the possibilities offered by the heating and footwear of the invention.

To improve the operation of heating and thermoregulation, a thermal insulation board is provided 10 between the heating element 4 and the outer layer of the liner. This thermal insulation layer 10 has a foam layer on which an aluminum foil is glued, which has a function of reflecting the heat generated by the heating element and avoiding that it spreads in the direction of the outer shell. The thermal insulation panel can be large enough to allow the sensor 8th is also protected in relation to the latter. In fact, it is important that the probe does not pass through the exterior of the liner and especially through the shell is affected whose temperature is directly exposed to external climatic conditions.

The invention is not limited to its use as described above. Any equivalent use of a heating and footwear whole is of course also conceivable.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102010055761 [0004]

Claims (10)

Inner shoe (2) for a sports shoe, which has a heating device (3), wherein the device (3) has at least one heating element (4), at least one element (6) for storing electrical energy, characterized in that the heating device (3 ) has a temperature sensor (8) which is arranged at a distance from the heating element (4). Inner shoe (2) according to the preceding claim, characterized in that the measuring sensor (8) is arranged at a distance of between 5 and 15 mm from the heating element (4). Inner shoe (2) according to one of the preceding claims, characterized in that the heating device (3) has a control interface (5). Inner shoe (2) according to the preceding claim, characterized in that the heating element (4) is arranged on the upper side of the foot in the front part of the inner shoe. Inner shoe (2) according to the preceding claim, characterized in that the inner shoe has a thermal insulation plate (10) and that the heating element (4) is arranged under this reflector plate or thermal insulation plate. Inner shoe (2) according to the preceding claim, characterized in that the measuring sensor (8) is also arranged under the thermal insulation plate (10). Inner shoe (2) according to the preceding claim, characterized in that the thermal insulation plate (10) comprises an aluminum foil. Inner shoe (2) according to the preceding claim, characterized in that the control interface (5) has a control button (51), a transmitter / receiver (54), a memory (53) and a central processing unit (52) and that the transmitter / Receiver is adapted to communicate with a personal electronic device. Ski boot equipped with an inner boot (2) according to one of the preceding claims. Schuh- and Heizgesamtheit, which is an inner shoe (2), as in Claim 8 is defined, as well as a personal electronic device, which is equipped with a non-volatile memory on which a computer program product is stored, characterized in that the computer program product comprises the following steps: - Pairing the heating device (3) of the inner shoe (2) with the computer program product stored in the memory of the personal electronic device; - defining a temperature setpoint; - Determining the moment from which the temperature setpoint is to be applied by the heater (3) and / or the time over which the temperature setpoint will be applied.

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