EP0361988B1 - Ski boot with a heating device - Google Patents

Ski boot with a heating device Download PDF

Info

Publication number
EP0361988B1
EP0361988B1 EP89402163A EP89402163A EP0361988B1 EP 0361988 B1 EP0361988 B1 EP 0361988B1 EP 89402163 A EP89402163 A EP 89402163A EP 89402163 A EP89402163 A EP 89402163A EP 0361988 B1 EP0361988 B1 EP 0361988B1
Authority
EP
European Patent Office
Prior art keywords
shoe
shoe according
gas
burner
branch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89402163A
Other languages
German (de)
French (fr)
Other versions
EP0361988A1 (en
Inventor
Philippe Billet
Jean-Louis Demarchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Salomon SAS
Original Assignee
Salomon SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Salomon SAS filed Critical Salomon SAS
Priority to AT89402163T priority Critical patent/ATE87439T1/en
Publication of EP0361988A1 publication Critical patent/EP0361988A1/en
Application granted granted Critical
Publication of EP0361988B1 publication Critical patent/EP0361988B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/02—Footwear with health or hygienic arrangements with heating arrangements 
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use
    • A43B3/34—Footwear characterised by the shape or the use with electrical or electronic arrangements
    • A43B3/38—Footwear characterised by the shape or the use with electrical or electronic arrangements with power sources
    • A43B3/42—Footwear characterised by the shape or the use with electrical or electronic arrangements with power sources where power is generated by conversion of mechanical movement to electricity, e.g. by piezoelectric means

Definitions

  • the present invention relates to an alpine or touring ski boot provided with a heating device.
  • Ski boots are already known in which are incorporated, in order to improve the comfort of the wearer, heating devices either of the electric type, with heating resistance, or of the solid fuel type, or even of the liquid fuel type. or gaseous, using, in this case, a fuel tank and a burner housed in the shoe.
  • heating devices either of the electric type, with heating resistance, or of the solid fuel type, or even of the liquid fuel type. or gaseous, using, in this case, a fuel tank and a burner housed in the shoe.
  • a boot and in particular a ski boot which is provided with a solid fuel heating device.
  • the fuel is in the form of a bar housed, in a removable manner, in a combustion chamber provided in the upper part of the upper of the shoe and which can be easily replaced when the fuel is exhausted.
  • Liquid or gaseous fuel heating devices have the advantage, compared to electric devices, of obtaining greater autonomy and ensuring, for a relatively long period of time, the desired comfort temperature at inside of the shoe.
  • Heating devices using liquid fuel generally include a rechargeable liquid fuel burner, which is arranged under a diffusion plate heat incorporated into the sole of the shoe so as to extend as close as possible to the foot of the wearer of the shoe.
  • Other heaters that use gaseous fuel comprise a gas reservoir supplying, through a valve, a catalytic burner, all of these elements also being housed entirely in the sole of the shoe.
  • gaseous fuel heating devices are described, for example, in the Italian utility model 196850 and in the international patent application WO86 / 05663.
  • These gas fueled heating devices are of the type with a rechargeable gas tank and it is therefore necessary to provide, in the sole of the shoe which contains the tank, an orifice through which the internal gas tank can be connected to a external gas recharge source.
  • the present invention aims to remedy these drawbacks by providing a shoe provided with a heating device of particularly simple design, with high energy efficiency, long service life and particularly convenient use.
  • this alpine or touring ski boot provided with a heating device, comprising a heating assembly housed in the sole of the boot, this heating assembly comprising a catalytic burner and a heat diffusion plate placed in the support area of the foot of the shoe wearer, a source of combustible gas connected to the catalytic burner by means of a regulator, and a device heating control, is characterized in that the fuel gas source consists of an interchangeable gas cartridge engaged in a receiving housing provided on the rear part of the upper of the shoe, outside or inside of the latter, this receiving housing being produced in the form of a prismatic or cylindrical housing open at its upper end and in which the cartridge is engaged from top to bottom, with its gas outlet orifice directed downwards.
  • Figure 1 is a schematic elevational view, partially in section, of an alpine ski boot provided with a heating device according to the invention.
  • Figure 2 is a sectional view taken along line II-II of Figure 1.
  • Figure 3 is a perspective view, taken from the rear of an alpine ski boot of the rear entry type.
  • Figure 4 is a vertical and longitudinal sectional view of the heating assembly housed in the sole of a shoe according to the invention.
  • Figure 5 is a vertical and longitudinal sectional view, on a larger scale, of an embodiment of the control device of the heating device, in the open position of the gas supply valve.
  • FIG. 6 is a perspective view of the control device of FIG. 5.
  • Figure 7 is a vertical and longitudinal sectional view of an alternative embodiment of the heating device control device.
  • FIG. 8 is a schematic view of an embodiment of a device for regulating the temperature by controlling the opening of the gas.
  • Figures 9.9A and 9B are schematic views of an alternative embodiment of a temperature control device, during different operating phases.
  • Figures 10,10A and 10B are schematic views of an alternative embodiment of a temperature control device, during different operating phases.
  • Figures 11, 12 and 13 are views in vertical and transverse section illustrating various devices for visualizing the operation of the burner.
  • FIG. 14 is a plan view of the bimetal control system used in the embodiment illustrated in FIG. 13.
  • the alpine ski boot 1 which is shown diagrammatically in FIGS. 1 to 4, comprises, in its sole 1, a heating assembly 2 which essentially consists of a catalytic burner 3 associated with a heat diffusion plate 4.
  • L heating assembly 2 is housed in a suitably shaped recess which is provided in the upper part of the sole 1 of the shoe, this recess being shaped so that the heat diffusion plate 4 which constitutes the upper part of the assembly heating 2, covers most of it of the foot support area.
  • the burner 3 is fixed to the diffusing plate 4 by any appropriate means, in particular by welding and it is integral with the underside of the plate 4, that is to say that which is opposite to that in contact with the inner sole 5 which needs to be heated.
  • the catalytic burner 3 can be of any known type ensuring the combustion of a gas by catalysis.
  • the burner 3 is connected to a gas supply pipe 7.
  • an electrode 9 forming part of an ignition device, for example of the piezoelectric type.
  • the upper 11 of the shoe which can be made in one or more parts, carries, on its rear wall, a housing 12 intended for receiving and maintaining an interchangeable gas cartridge 13.
  • the ski boot is of the rear boot type and its upper 11 consists of two parts, namely a front cuff 11a and a rear cover 11b hinged at the bottom, around a horizontal and transverse axis .
  • the receiver housing 12 for the gas cartridge 13 is provided on the rear face of the rear cover 11b and it advantageously comes from molding with the latter, if the latter is made of molded plastic.
  • the receiving housing 12 is preferably made in the form of a prismatic or cylindrical housing open at its upper end and in which the cartridge 13 can be engaged from top to bottom, with its gas outlet orifice directed downwards.
  • an assembly 15 forming a pressure reducer and a valve to which an ambient air inlet device 16 is connected, to form downstream a gas-air mixture suitable for combustion.
  • the heating device also comprises an ignition device which comprises, for example, a piezoelectric igniter 17 excited by action on a pusher 18 and which is connected by a conductor 19 to the electrode 9 in order to produce a spark of ignition by means of this electrode.
  • an ignition device which comprises, for example, a piezoelectric igniter 17 excited by action on a pusher 18 and which is connected by a conductor 19 to the electrode 9 in order to produce a spark of ignition by means of this electrode.
  • the upper external end of the gas cartridge 13 is housed in a movable cap 21 which is slidably engaged in the upper part of the housing 12.
  • this cap 21 is in abutment on the one hand on the upper bottom of the gas cartridge 13 and on the other hand on the pusher 18 of the piezoelectric igniter 17.
  • the lower or internal end of the gas cartridge 13 is supported on a piston 22 slidably mounted in the housing 12 and which is pushed elastically upwards by a compression spring 23 disposed between the piston 22 and the bottom of the housing 12
  • This piston 22 carries, in its central part, the pressure reducing valve 15 whose outlet is connected to the air intake 16.
  • This air intake 16 is advantageously constituted by a venturi in the axis of which the mixture is injected gaseous exiting the regulator 15, in order to cause the suction of air, by induction, from the outside.
  • the venturi constituting the air intake 16 is connected to the pipe 7 which is flexible, at least in part, so as to be able to follow the angular movement of the rear cover 11b during the opening and closing movement of the latter.
  • the space in which the air intake 16 is housed communicates with the outside by means of one or more openings 24 formed in the wall of the housing 12 containing the cartridge 13. Across each inlet opening d 'air 24 extends a filter element made of any material permeable to air but impermeable to foreign bodies from the environment, in particular to snow.
  • the wearer of the boot first opens the regulator-tap assembly 15, placing it in a start-up or choke position in which a high flow rate of mixture of combustible gas and air is supplied by the hose. 7 to the burner 3. Then the wearer of the shoe presses on the cap 21 so as to push the gas cartridge 13 towards the bottom of the housing 12, against the spring 23. This movement results in the depression of the pusher 18 and consequently by the emission, by the piezoelectric igniter 17, of an electric pulse transmitted to the electrode 9 which then produces a spark. This spark causes the ignition of the combustible gas in the catalytic burner 3 and the formation of a flame.
  • the interchangeable gas cartridge 13 is mounted inside the rear wall of the upper 11 of the shoe which, in this embodiment, consists of 'only one part.
  • the valve-regulator assembly 15 to which the pipe 7 supplying the burner 3 of the heating assembly 2 is connected.
  • the heating control device comprises a control button 25 which can slide "vertically""outside the rear wall of the rod 11. In the description which follows, the direction of the rear wall of the rod 11 will be considered to be” vertical ", whereas this wall may in fact be slightly inclined forward.
  • the control button 25 is fixed to a tab 26 extending through a vertical slot 27 formed in the rear wall of the rod 11.
  • the tab 26 constitutes the external extension of the upper horizontal wing of a voluntary unlocking plate 28 C-shaped open rearward, extending vertically.
  • the voluntary unlocking plate 28 carries, at its upper end, a bracket 29 which is fixed to the plate by a vertical wing and whose horizontal wing extends a short distance, in the gas closed position, which is shown on Figure 6, above the pusher upper 18 of the piezoelectric igniter 17 fixed to the rod 11.
  • the lower horizontal wing of the voluntary unlocking plate 28 is extended downwards by a bar ending in an unlocking ramp 31 which acts on the core upper horizontal 32a of a locking spring 32 in the form of a loop or an inverted U. This locking spring 32 is fixed to the lower part of the upper 11 or to the bottom of the boot shell.
  • the heating control device also comprises a second locking plate 33 which is attached to the voluntary unlocking plate 28 and which has a C shape open towards the rear.
  • the two plates 28 and 33 are coupled to each other by means of guide pins 34 provided on the core of one of the plates, in this case on that of the voluntary unlocking plate 28, which are engaged in slots 35 formed in the core of the other plate 33, these slots 35 being aligned and elongated vertically.
  • the lower horizontal wing of the locking plate 33 is extended downwards by a bar which ends, by a locking hook 36 capable of coming to grip under the core 32a of the locking spring 32.
  • the plate locking 33 carries, at its lower part, a projecting tab 33a which actuates from below, a finger 15a for controlling the valve 15 controlling the opening and closing of this valve, this finger being urged towards its lower opening position by a spring 15b housed in the valve body.
  • the two plates 28, 33 as well as the piezoelectric igniter 17 are advantageously mounted on a support 37 fixed inside the rod 11 and which has a support shoulder 38 for a return spring 39.
  • This spring of reminder 39 is a compression spring bearing, at its lower end, on the shoulder 38, and, at its upper end, both under the upper horizontal wings of the plates 28 and 33.
  • the spring 39 thus constantly biases the two plates 28.33 upwards and their movement in this direction is limited by the abutment of the lower wings of the plates 28, 33 under the support shoulder 38.
  • the control button 25 can occupy, in the lumen 27, three different vertical positions, namely an upper extreme position I, corresponding to the closing of the gas supply, an intermediate position II, corresponding to the opening of the supply. in gas, and a lower extreme position III, corresponding to the actuation of the piezoelectric igniter 17, these three positions I, II, III being indicated in phantom in Figure 5.
  • the upper closed position I the different parts of the heating control device are in the position illustrated in Figure 6.
  • the two plates 28,33 are in the upper extreme position, being pushed back into this position by the return spring 39, their movement upwards being limited by the abutment of their lower wings against the support shoulder 38.
  • the horizontal wing of the bracket 29 is located at low d istance above the pusher 18 of the piezoelectric igniter 17.
  • the unlocking ramp 31 and the locking hook 36 are situated a little above the upper horizontal core 32a of the locking spring 32.
  • the control button 25 drives with it the voluntary unlocking plate 28 with which it is integral and the latter in turn immediately drives the locking plate 33, owing to the fact that the guide pins 34 which are integral with the plate 28, are in contact with the lower ends of the openings 35 formed in the plate 33.
  • the two plates 28, 33 are thus moved jointly downwards, against the action of the return spring 39.
  • the locking hook 36 slides along the core 32a of the spring 32 by pushing it back somewhat, after which it comes to be placed under this core for as secure the lock.
  • the unlocking ramp 31 naturally accompanies this movement.
  • the tab 33a of the plate 33 releases the control finger 15a from the tap 15 so that this tap opens. Consequently, as soon as the control button 25 reaches the intermediate position II, the valve 15 is open and the gas contained in the interchangeable cartridge 13 can then flow through the pipe 7 towards the burner of the heating assembly.
  • the skier presses the control button 25 fully so as to bring it into its lower extreme position III.
  • the horizontal wing of the bracket 29 which was then, in the intermediate position II, just in contact with the upper end of the pusher 18, pushes this pusher downwards and causes l actuation of the piezoelectric igniter 17 which emits an electrical pulse giving rise to an ignition spark produced by the electrode 9.
  • the unlocking ramp 31 and the hook 36 are moved slightly below the core 32a of the spring 32.
  • the control button 25 When the skier wishes to stop the heating, he pulls the control button 25 upwards to return it to its extreme upper closed position I. During this closing phase, the control button 25 firstly causes the sole voluntary release plate 28 to slide upwards, due to the coupling produced by the guide pins 34 and the slots 35, these pins 34 then moving alone upwards in the slots 35 remaining stationary. Consequently, only the voluntary unlocking plate 28 is moved upwards and its lower unlocking ramp 31, which slides in contact with the upper core 32a of the spring 32, progressively pushes this soul inwards, thereby progressively removing the spring until the locking hook 36 can escape.
  • the slope of the unlocking ramp 31 and its length are chosen such that the escape of the locking hook 36 occurs before the guide pins 34 reach the upper ends of the slots 35.
  • the heating control device also includes the two adjoining vertical plates 28, 33, coupled together by means of the guide pins 34 housed in the elongated slots 35
  • the lower horizontal wing of the voluntary unlocking plate 28, which extends below the support shoulder 38 is placed just above the upper pusher 18 of the piezoelectric igniter 17 which is fixed to the lower part of the rod 11, below the support shoulder 38.
  • the locking plate 33 carries, at its upper end part, a locking pawl 41 which is pivotally mounted on the plate 33, around a horizontal and transverse axis 42.
  • This pawl 41 comprises two branches, namely a short lower branch 41a with which is in contact the upper end of a vertical tab 28a extending the platinum release 28 upwards.
  • the pawl 41 also has a longer upper branch 41b which extends upwards and which can engage under a tooth 43 provided on the internal face of the rear wall of the rod 11.
  • the pawl 41 is resiliently biased in clockwise, by means of a spring 44 hooked respectively, at its two ends, to the plate 33 and to the pawl 41 so that the upper branch 41b of the pawl 41 is pressed constantly against the rear wall of the upper 11 of the shoe.
  • the control button 25 as well as the two plates 28, 33 are in the extreme upper position I and the pawl 41 is retracted, its upper branch 41b extending freely above the tooth of locking 43. Furthermore, the lower wing of the unlocking plate 28 is situated just below the shoulder 38 with which it is in contact, thus being at a distance from the pusher 18 of the piezoelectric igniter 17.
  • the control button 25 When the skier wants to turn on the heating device, he presses the control button 25 to move it into the intermediate opening position II which is that shown in FIG. 7. During its downward movement, the plate voluntary unlocking 28 which is driven directly by the control button 25, drives with it the unlocking plate 33 and therefore the pawl 41 carried by the latter. At some point the end of the upper branch 41b of the pawl 41 passes below the tooth 43 and then the pawl swings clockwise around the pivot axis 42, under the action of the return spring 44. From this moment the pawl 41 is engaged under the tooth 43 and it opposes any movement of the plate 33 upwards.
  • the skier wants to switch off the heating of the boot, he pulls up on the control button 25 to bring it back to the extreme upper position I.
  • the force exerted upwards on the control button 25 is transmitted to the plate. 28 and the tab 28a of the latter then acts on the small lower branch 41a of the pawl 41, so as to rotate this pawl anticlockwise.
  • the upper branch 41b of the pawl escapes from the tooth 43 and the two plates 28, 33 can then go back to the upper extreme position I under the action of the return spring 39.
  • the shoe heating device according to the invention can advantageously be provided with an automatic temperature regulation device.
  • an automatic temperature regulation device Non-limiting embodiments of such a temperature control device are illustrated in FIGS. 8, 9 and 10.
  • the temperature control device shown in Figure 8 has a closed circuit 45 filled with an expandable fluid.
  • This closed circuit 45 comprises, at one end, a bulb 46 located near the heat source constituted in this case by the catalytic burner 3, an intermediate capillary tube 47, and at its other end, a membrane actuator 48.
  • This actuator is fixed to the internal face of the rear wall of the rod 11, near the finger 15a for controlling the opening and closing of the gas supply valve 15.
  • the actuator 48 comprises a housing in which is formed a chamber separated into two parts by a deformable membrane 49.
  • the tube 47 containing the expandable fluid is connected to a working chamber 51 delimited by the deformable membrane 49 and the bottom of the housing.
  • a spring 52 for returning the diaphragm 49.
  • the diaphragm 49 is also extended by a plunger 53 fixed at the center of the diaphragm and exiting outside the actuator housing 48. At its outer end the plunger 53 is in contact with a lower branch 54a, extending downwards, of a lever 54 in the form of a square which is articulated around a horizontal and transverse axis 55.
  • This lever 54 comprises also a horizontal branch 54b extending towards the inside of the shoe and which is in contact under the finger 15a for controlling the opening and closing of the valve 15, which is constantly biased downwards by the spring of reminder 15b incorporated in the valve body 15.
  • the plunger 53 of the membrane actuator 48 carries, outside the housing of this actuator, two radially opposite radial fingers 56, 57.
  • the finger 56 keeps immobilized, between this finger 56 and the wall of the actuator housing 48, a horizontal wing 58a of a control fork 58 comprising a vertical wing 58b extending upwards.
  • This vertical wing 58b is pierced with an opening through which extends the straight branch of a lever 59 articulated around a horizontal axis 60 perpendicular to the plane of the drawing sheet.
  • the left arm of the lever 59 extends above the outer end of the plunger 53, at a distance therefrom.
  • the end of the right arm of the lever 59 is connected to a vertical control slide 61 which is urged upwards by a return spring 62 and which can be applied to a seat 63 located below it, which constitutes the orifice of a gas inlet duct 64.
  • the seat 63 is interposed on the gas flow path from the inlet duct 64 to the burner 3. Furthermore, the regulating device shown in FIG.
  • a gas opening control cam 65 returned to the horizontal position by a return spring not shown, which is rotatably mounted about an axis 66, below the radial finger 57 of the plunger 53 extending beyond beyond the housing of the actuator 48, so as to be able to lift this finger 57 and consequently the plunger 53 by manual rotation of the cam 65 in a vertical position.
  • the drawer 61 then moves away from the seat 63 so that the gas can flow through this seat and can reach the burner 3 where it is ignited by means of the piezoelectric ignition device as indicated above.
  • the membrane 49 extends horizontally, as does the control lever 59 which is then pressed by its left branch against the upper end of the pusher 53.
  • the regulating device intervenes to cut off the gas supply when the temperature exceeds a predetermined threshold value.
  • the expansion of the gas contained in the closed circuit 45 is such that the pressure produced in the lower working chamber 51 causes an upward deformation of the membrane 49 as shown in FIG. 9B.
  • the pusher 53 is then pushed further outwards, against the return spring 52 and this vertical upward movement of the pusher 53 causes the control lever 59 to pivot in the clockwise direction around the axis 60.
  • the right arm of this lever 59 then lowers by lowering on the one hand the control fork 58, the horizontal wing 58a of which again comes to bear against the upper wall of the actuator housing 48, and on the other hand the control slide 61 which then closes the seat 63.
  • the gas supply to the burner 3 is cut off.
  • the spring 52 pushes the membrane 49 and the pusher 53 down, the lever 59 is then released and the return spring 62 pushes the drawer 61 upwards, opening the seat 63, to restore the gas supply to the burner 3.
  • FIG. 10A and 10B is shown an alternative embodiment of the regulating device which uses a bimetallic strip 68 which is anchored at its fixed lower end 68a and which is inclined on one side relative to the vertical, this is that is to say to the left in the drawing, while being in contact, in the stop position shown in FIG. 10, with a closed retaining finger 67a secured to the left end of a horizontal operating rod 67.
  • an actuating cam 65 which can be operated manually, is arranged in the immediate vicinity of the upper part of the bimetallic strip in order to straighten the latter in a rectilinear vertical position.
  • the lower operating rod 67 is mounted with horizontal sliding and its straight end is articulated at the end of the lower branch of a lever 69 articulated around a horizontal axis 71 perpendicular to the plane of the drawing sheet.
  • the upper branch of the lever 69 is connected, at a point along its length, to an upper operating rod 72 mounted with horizontal sliding.
  • the upper branch of the lever 69 is coupled, at its upper end to a piston 73 mounted to slide horizontally in a bore formed in a valve body 74. This piston 73 is constantly biased towards the outside by a return spring 75.
  • the piston 73 carries, on its internal front face, a seal 76 which can close off a valve seat 77 provided at the location of the orifice of a gas inlet duct 78 formed in the body 74, coaxially with the piston 73. In the bore in which this piston 73 slides opens a lateral duct 79 connected to the burner 3.
  • the skier When the skier wishes to turn on the heating device, he manually rotates the cam 65 by 90 ° so as to bring it into the horizontal position shown in FIG. 10A.
  • the cam 65 is rotated in the horizontal position just for the period of time necessary for ignition, after which it is brought back to the vertical rest position by a suitable return spring, not shown.
  • the cam 65 pushes the bimetallic strip 68 relative to its rest position, to bring it into a vertical rectilinear position.
  • the bimetallic strip 68 then releases the retaining finger 67a, and consequently the lower operating rod 67 and the lever 69.
  • FIG. 10B illustrates the regulation operation.
  • the bimetallic strip 68 gradually deforms and tilts more and more to the right.
  • the temperature reaches a predetermined threshold value
  • the deformation of the bimetallic strip 68 is sufficient for it to push, by its upper part, the upper operating rod 72 to the right.
  • This rod then causes the lever 69 to pivot clockwise, so that the piston 73 is pushed to the right in the bore of the body 74 until its seal 76 comes to close the seat 77 From this moment the gas supply is cut off and the burner 3 goes out.
  • the bimetallic strip 68 deforms in the direction of its vertical position, it then releases the operating rod 72 and the piston 73 can be pushed outwards, under the action of the return spring 75, in then re-establishing communication between the conduits 78 and 79 and the gas supply to the burner 3.
  • the temperature control device which has been described with reference to FIGS. 10, 10A and 10B, has the advantage of ensuring an automatic cut-off of the gas supply in the event of a combustion stop.
  • the bimetallic strip 5 cools and it deforms to return to occupy its rest position illustrated in FIG. 10. This is made possible by the fact that the cam 65 has moved to the horizontal position only to cause the initial opening of the gas supply circuit and that it then returns to the vertical position, as shown in FIG. 10B.
  • the cam 65 has moved to the horizontal position only to cause the initial opening of the gas supply circuit and that it then returns to the vertical position, as shown in FIG. 10B.
  • the bimetallic strip 68 in the rest position it comes into contact with the retaining finger 67a and then it drives this finger and the lower operating rod 67 to the left. This then causes the lever 69 to pivot clockwise and consequently to close the valve seat 77 by the piston 73.
  • the display device shown in FIG. 11 comprises an optical sensor 81 which is arranged next to the burner 3, and which is connected, by an optical fiber 82, to an observation point 83 which is provided on the top of the part anterior of the bottom of the boot shell as shown in FIG. 1 and which constitutes a luminous point due to the incandescence of the gas at the location of the burner. The skier can thus easily check that the burner 3 is indeed in operation.
  • the display device comprises, in the immediate vicinity of the burner 3, a bulb 84 which is connected, by a capillary tube 85, to an indicator device 86 provided on the part anterior and superior of the bottom of hull.
  • the bulb 84 and the capillary tube 85 contain an expandable fluid and the expansion of this fluid, when the temperature of the burner 3 is high, causes the displacement of a movable index 86a in front of a window 86b of the indicating device 86.
  • the display device comprises a bimetallic strip 87 extending near the burner 3 so as to be able to be heated by the latter.
  • This bimetal rests on one end of a branch of a lever with two branches 88 articulated around an axis 89 and the other branch of which is connected to one end of a flexible cable 91.
  • This cable can slide in a sheath 92 which extends to an indicating device 93 placed on the upper and anterior part of the shell bottom.
  • the other end of the cable 91 is attached to a mobile indicator 94 which can move in front of a window 93a of the housing of the indicator device 93.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)

Abstract

The present invention relates to an alpine or cross-country ski boot fitted with a heating device, comprising a heating unit accommodated in the sole of the boot, this heating unit comprising a catalytic burner (3) and a plate for diffusion of the heat positioned in the zone of support of the foot of the wearer of the boot, a source of fuel gas (13) connected to the catalytic burner (3) by means of a reducing valve (15), and a heating control device. <??>This boot is characterised in that the source of fuel gas is constituted by an interchangeable gas cartridge (13) and in that means (12) are provided on the upper (11) or the vamp of the boot to receive and hold in position the interchangeable gas cartridge (13) and connect it to the supply circuit of the catalytic burner (3). <IMAGE>

Description

La présente invention concerne une chaussure de ski alpin ou de randonnée pourvue d'un dispositif de chauffage.The present invention relates to an alpine or touring ski boot provided with a heating device.

On connaît déjà des chaussures de ski dans lesquelles sont incorporés, dans le but d'améliorer le confort du porteur, des dispositifs de chauffage soit du type électrique, à résistance chauffante, soit du type à combustible solide, soit encore du type à combustible liquide ou gazeux, en utilisant, dans ce cas, un réservoir de combustible et un brûleur logés dans la chaussure. On connaît notamment, ainsi qu'il est décrit dans le brevet EP-A-0 146 792, une chaussure et notamment une chaussure de ski qui est pourvue d'un dispositif de chauffage à combustible solide. Dans ce cas le combustible se présente sous la forme d'une barre logée, d'une manière amovible, dans une chambre de combustion prévue dans la partie supérieure de l'empeigne de la chaussure et pouvant être aisément remplacée lorsque le combustible est épuisé.Ski boots are already known in which are incorporated, in order to improve the comfort of the wearer, heating devices either of the electric type, with heating resistance, or of the solid fuel type, or even of the liquid fuel type. or gaseous, using, in this case, a fuel tank and a burner housed in the shoe. Are known in particular, as described in patent EP-A-0 146 792, a boot and in particular a ski boot which is provided with a solid fuel heating device. In this case the fuel is in the form of a bar housed, in a removable manner, in a combustion chamber provided in the upper part of the upper of the shoe and which can be easily replaced when the fuel is exhausted.

Les dispositifs de chauffage à combustible liquide ou gazeux présentent l'avantage, par rapport aux dispositifs électriques, de permettre d'obtenir une plus grande autonomie et d'assurer, pendant une période de temps relativement longue, la température de confort désirée à l'intérieur de la chaussure.Liquid or gaseous fuel heating devices have the advantage, compared to electric devices, of obtaining greater autonomy and ensuring, for a relatively long period of time, the desired comfort temperature at inside of the shoe.

Les dispositifs de chauffage utilisant un combustible liquide, tels que décrits, par exemple, dans les brevets IT-1 136 269 et FR-A-2 080 146, comportent généralement un brûleur à combustible liquide rechargeable, lequel est disposé sous une plaque de diffusion de la chaleur incorporée dans la semelle de la chaussure de manière à s'étendre le plus près possible du pied du porteur de la chaussure. D'autres dispositifs de chauffage qui utilisent un combustible gazeux, comprennent un réservoir de gaz alimentant, à travers une vanne, un brûleur catalytique, tous ces éléments étant également logés en totalité dans la semelle de la chaussure. De tels dispositifs de chauffage à combustible gazeux sont décrits, par exemple, dans le modèle d'utilité italien 196850 et dans la demande de brevet internationale W086/05663. Ces dispositifs de chauffage à combustible gazeux sont du type à réservoir de gaz rechargeable et il est nécessaire par conséquent de prévoir, dans la semelle de la chaussure qui contient le réservoir, un orifice à travers lequel le réservoir de gaz interne peut être raccordé à une source de recharge en gaz externe.Heating devices using liquid fuel, as described, for example, in patents IT-1,136,269 and FR-A-2,080,146, generally include a rechargeable liquid fuel burner, which is arranged under a diffusion plate heat incorporated into the sole of the shoe so as to extend as close as possible to the foot of the wearer of the shoe. Other heaters that use gaseous fuel, comprise a gas reservoir supplying, through a valve, a catalytic burner, all of these elements also being housed entirely in the sole of the shoe. Such gaseous fuel heating devices are described, for example, in the Italian utility model 196850 and in the international patent application WO86 / 05663. These gas fueled heating devices are of the type with a rechargeable gas tank and it is therefore necessary to provide, in the sole of the shoe which contains the tank, an orifice through which the internal gas tank can be connected to a external gas recharge source.

Tous les dispositifs de chauffage à combustible liquide ou gazeux présentent l'inconvénient d'exiger un remplissage périodique du réservoir de combustible ce qui constitue une opération peu commode et exige notamment de disposer à proximité d'une source de combustible pour pouvoir recharger le réservoir lorsque le besoin s'en fait sentir. On conçoit donc que cette opération de remplissage du réservoir ne peut pas s'effectuer commodément, par exemple lorsqu'un skieur se trouve en pleine montagne et qu'il fait particulièrement froid.All liquid or gaseous fuel heating devices have the drawback of requiring periodic filling of the fuel tank, which constitutes an inconvenient operation and in particular requires having a fuel source close by in order to be able to refill the tank when the need arises. It is therefore understandable that this operation of filling the reservoir cannot be carried out conveniently, for example when a skier is in the middle of the mountain and it is particularly cold.

La présente invention vise à remédier à ces inconvénients en procurant une chaussure pourvue d'un dispositif de chauffage de conception particulièrement simple, à rendement énergétique élevé, à longue durée de service et d'un emploi particulièrement commode.The present invention aims to remedy these drawbacks by providing a shoe provided with a heating device of particularly simple design, with high energy efficiency, long service life and particularly convenient use.

A cet effet cette chaussure de ski alpin ou de randonnée pourvue d'un dispositif de chauffage, comportant un ensemble chauffant logé dans la semelle de la chaussure, cet ensemble chauffant comprenant un brûleur catalytique et une plaque de diffusion de la chaleur placée dans la zone d'appui du pied du porteur de la chaussure, une source de gaz combustible reliée au brûleur catalytique par l'intermédiaire d'un détendeur, et un dispositif de commande du chauffage, est caractérisée en ce que la source de gaz combustible est constituée par une cartouche de gaz interchangeable engagée dans un logement récepteur prévu sur la partie postérieure de la tige de la chaussure, à l'extérieur ou à l'intérieur de celle-ci, ce logement récepteur étant réalisé sous la forme d'un boîtier prismatique ou cylindrique ouvert à son extrémité supérieure et dans lequel la cartouche est engagée de haut en bas, avec son orifice de sortie du gaz dirigé vers le bas.To this end, this alpine or touring ski boot provided with a heating device, comprising a heating assembly housed in the sole of the boot, this heating assembly comprising a catalytic burner and a heat diffusion plate placed in the support area of the foot of the shoe wearer, a source of combustible gas connected to the catalytic burner by means of a regulator, and a device heating control, is characterized in that the fuel gas source consists of an interchangeable gas cartridge engaged in a receiving housing provided on the rear part of the upper of the shoe, outside or inside of the latter, this receiving housing being produced in the form of a prismatic or cylindrical housing open at its upper end and in which the cartridge is engaged from top to bottom, with its gas outlet orifice directed downwards.

On décrira ci-après, à titre d'exemple non limitatif, une forme d'exécution de la présente invention, en référence au dessin annexé sur lequel :An embodiment of the present invention will be described below, by way of non-limiting example, with reference to the appended drawing in which:

La figure 1 est une vue en élévation schématique, partiellement en coupe, d'une chaussure de ski alpin pourvue d'un dispositif de chauffage suivant l'invention.Figure 1 is a schematic elevational view, partially in section, of an alpine ski boot provided with a heating device according to the invention.

La figure 2 est une vue en coupe faite suivant la ligne II-II de la figure 1.Figure 2 is a sectional view taken along line II-II of Figure 1.

La figure 3 est une vue en perspective, prise de l'arrière d'une chaussure de ski alpin du type à entrée arrière.Figure 3 is a perspective view, taken from the rear of an alpine ski boot of the rear entry type.

La figure 4 est une vue en coupe verticale et longitudinale de l'ensemble chauffant logé dans la semelle d'une chaussure suivant l'invention.Figure 4 is a vertical and longitudinal sectional view of the heating assembly housed in the sole of a shoe according to the invention.

La figure 5 est une vue en coupe verticale et longitudinale, à plus grande échelle, d'une forme d'exécution du dispositif de commande du dispositif de chauffage, en position d'ouverture du robinet d'alimentation en gaz.Figure 5 is a vertical and longitudinal sectional view, on a larger scale, of an embodiment of the control device of the heating device, in the open position of the gas supply valve.

La figure 6 est une vue en perspective du dispositif de commande de de la figure 5.FIG. 6 is a perspective view of the control device of FIG. 5.

La figure 7 est une vue en coupe verticale et longitudinale d'une variante d'exécution du dispositif de commande du dispositif de chauffage.Figure 7 is a vertical and longitudinal sectional view of an alternative embodiment of the heating device control device.

La figure 8 est une vue schématique d'une forme d'exécution d'un dispositif de régulation de la température par pilotage de l'ouverture du gaz.FIG. 8 is a schematic view of an embodiment of a device for regulating the temperature by controlling the opening of the gas.

Les figures 9,9A et 9B sont desvues schématiques d'une variante d'exécution d'un dispositif de régulation de température, au cours de phases opératoires différentes.Figures 9.9A and 9B are schematic views of an alternative embodiment of a temperature control device, during different operating phases.

Les figures 10,10A et 10B sont des vues schématiques d'une variante d'exécution d'un dispositif de régulation de température, au cours de phases opératoires diffé rentes.Figures 10,10A and 10B are schematic views of an alternative embodiment of a temperature control device, during different operating phases.

Les figures 11,12 et 13 sont des vues en coupe verticale et transversale illustrant divers dispositifs de visualisation du fonctionnement du brûleur.Figures 11, 12 and 13 are views in vertical and transverse section illustrating various devices for visualizing the operation of the burner.

La figure 14 est une vue en plan du système de commande par bilame utilisé dans la forme d'exécution illustrée sur la figure 13.FIG. 14 is a plan view of the bimetal control system used in the embodiment illustrated in FIG. 13.

La chaussure de ski alpin 1 qui est représentée schématiquement sur les figures 1 à 4, comprend, dans sa semelle 1, un ensemble chauffant 2 qui est constitué essentiellement d'un brûleur catalytique 3 associé à une plaque de diffusion de la chaleur 4. L'ensemble chauffant 2 est logé dans un évidement de forme appropriée qui est prévu dans la partie supérieure de la semelle 1 de la chaussure, cet évidement étant conformé de manière que la plaque de diffusion de chaleur 4 qui constitue la partie supérieure de l'ensemble chauffant 2, s'étende sur la plus grande partie de la zone d'appui du pied. Le brûleur 3 est fixé à la plaque diffusante 4 par tous moyens appropriés, notamment par soudage et il est solidaire de la face inférieure de la plaque 4 c'est-à-dire celle qui est opposée à celle en contact avec la semelle interne 5 qui doit être chauffée. Le brûleur catalytique 3 peut être de tout type connu assurant la combustion d'un gaz par catalyse. Le brûleur 3 est relié à un tuyau d'alimentation en gaz 7. Au brûleur 3 est associée une électrode 9 faisant partie d'un dispositif d'allumage par exemple du type piézo-électrique.The alpine ski boot 1 which is shown diagrammatically in FIGS. 1 to 4, comprises, in its sole 1, a heating assembly 2 which essentially consists of a catalytic burner 3 associated with a heat diffusion plate 4. L heating assembly 2 is housed in a suitably shaped recess which is provided in the upper part of the sole 1 of the shoe, this recess being shaped so that the heat diffusion plate 4 which constitutes the upper part of the assembly heating 2, covers most of it of the foot support area. The burner 3 is fixed to the diffusing plate 4 by any appropriate means, in particular by welding and it is integral with the underside of the plate 4, that is to say that which is opposite to that in contact with the inner sole 5 which needs to be heated. The catalytic burner 3 can be of any known type ensuring the combustion of a gas by catalysis. The burner 3 is connected to a gas supply pipe 7. To the burner 3 is associated an electrode 9 forming part of an ignition device, for example of the piezoelectric type.

Par ailleurs la tige 11 de la chaussure, qui peut être réalisée en une ou plusieures parties, porte, sur sa paroi postérieure, un logement 12 destiné à la réception et au maintien d'une cartouche de gaz interchangeable 13. Dans cette forme d'exécution non limitative la chaussure de ski est du type à chaussage par l'arrière et sa tige 11 est constituée de deux parties, à savoir une manchette avant 11a et un capot arrière 11b articulé à partie inférieure, autour d'un axe horizontal et transversal. Le logement récepteur 12 pour la cartouche de gaz 13 est prévu sur la face arrière du capot arrière 11b et il vient avantageusement de moulage avec ce dernier, si celui-ci est réalisé en matière plastique moulée. Le logement récepteur 12 est de préférence réalisé sous la forme d'un boîtier prismatique ou cylindrique ouvert à son extrémité supérieure et dans lequel la cartouche 13 peut être engagée de haut en bas, avec son orifice de sortie du gaz dirigé vers le bas. En dessous du logement 12 est disposé un ensemble 15 formant détendeur et robinet auquel est raccordé un dispositif d'entrée d'air ambiant 16, pour former en aval un mélange gaz-air approprié pour la combustion.Furthermore, the upper 11 of the shoe, which can be made in one or more parts, carries, on its rear wall, a housing 12 intended for receiving and maintaining an interchangeable gas cartridge 13. In this form of non-limiting execution the ski boot is of the rear boot type and its upper 11 consists of two parts, namely a front cuff 11a and a rear cover 11b hinged at the bottom, around a horizontal and transverse axis . The receiver housing 12 for the gas cartridge 13 is provided on the rear face of the rear cover 11b and it advantageously comes from molding with the latter, if the latter is made of molded plastic. The receiving housing 12 is preferably made in the form of a prismatic or cylindrical housing open at its upper end and in which the cartridge 13 can be engaged from top to bottom, with its gas outlet orifice directed downwards. Below the housing 12 is disposed an assembly 15 forming a pressure reducer and a valve to which an ambient air inlet device 16 is connected, to form downstream a gas-air mixture suitable for combustion.

Le dispositif de chauffage comporte également un dispositif d'allumage qui comprend, par exemple, un allumeur piézo-électrique 17 excité par action sur un poussoir 18 et qui est relié par un conducteur 19 à l'électrode 9 afin de produire une étincelle d'allumage au moyen de cette électrode.The heating device also comprises an ignition device which comprises, for example, a piezoelectric igniter 17 excited by action on a pusher 18 and which is connected by a conductor 19 to the electrode 9 in order to produce a spark of ignition by means of this electrode.

De préférence l'extrémité externe supérieure de la cartouche de gaz 13 est logée dans un capuchon mobile 21 qui est engagé à coulissement dans la partie supérieure du logement 12. Comme on peut mieux le voir sur la figure 2, ce capuchon 21 est en appui d'une part sur le fond supérieur de la cartouche de gaz 13 et d'autre part sur le poussoir 18 de l'allumeur piézo-électrique 17.Preferably the upper external end of the gas cartridge 13 is housed in a movable cap 21 which is slidably engaged in the upper part of the housing 12. As can best be seen in FIG. 2, this cap 21 is in abutment on the one hand on the upper bottom of the gas cartridge 13 and on the other hand on the pusher 18 of the piezoelectric igniter 17.

L'extrémité inférieure ou interne de la cartouche de gaz 13 est en appui sur un piston 22 monté coulissant dans le logement 12 et qui est repoussé élastiquement vers le haut par un ressort de compression 23 disposé entre le piston 22 et le fond du logement 12. Ce piston 22 porte, dans sa partie centrale, le détendeur-robinet 15 dont la sortie est reliée à la prise d'air 16. Cette prise d'air 16 est avantageusement constituée par un venturi dans l'axe duquel est injecté le mélange gazeux sortant du détendeur 15, afin de provoquer l'aspiration d'air, par induction, à partir de l'extérieur. Le venturi constituant la prise d'air 16 est raccordé au tuyau 7 qui est flexible, au moins en partie, de manière à pouvoir suivre le débattement angulaire du capot arrière 11b lors du mouvement d'ouverture et de fermeture de celui-ci. L'espace dans lequel est logé la prise d'air 16 communique avec l'extérieur par l'intermédiaire d'une ou plusieurs ouïes 24 ménagées dans la paroi du logement 12 contenant la cartouche 13. En travers de chaque ouïe d'entrée d'air 24 s'étend un élément filtrant réalisé en toute matière perméable à l'air mais imperméable aux corps étrangers provenant de l'environnement, notamment à la neige.The lower or internal end of the gas cartridge 13 is supported on a piston 22 slidably mounted in the housing 12 and which is pushed elastically upwards by a compression spring 23 disposed between the piston 22 and the bottom of the housing 12 This piston 22 carries, in its central part, the pressure reducing valve 15 whose outlet is connected to the air intake 16. This air intake 16 is advantageously constituted by a venturi in the axis of which the mixture is injected gaseous exiting the regulator 15, in order to cause the suction of air, by induction, from the outside. The venturi constituting the air intake 16 is connected to the pipe 7 which is flexible, at least in part, so as to be able to follow the angular movement of the rear cover 11b during the opening and closing movement of the latter. The space in which the air intake 16 is housed communicates with the outside by means of one or more openings 24 formed in the wall of the housing 12 containing the cartridge 13. Across each inlet opening d 'air 24 extends a filter element made of any material permeable to air but impermeable to foreign bodies from the environment, in particular to snow.

D'après la description qui précède on voit que la mise en marche du dispositif de chauffage suivant l'invention est particulièrement simple. En effet le porteur de la chaussure ouvre tout d'abord l'ensemble détendeur-robinet 15, en la plaçant dans une position de démarrage ou de starter dans laquelle un fort débit de mélange de gaz combustible et d'air est fourni par le tuyau 7 au brûleur 3. Ensuite le porteur de la chaussure appuie sur le capuchon 21 de manière à repousser la cartouche de gaz 13 en direction du fond du logement 12, à l'encontre du ressort 23. Ce mouvement se traduit par l'enfoncement du poussoir 18 et par conséquent par l'émission, par l'allumeur piézo-électrique 17, d'une impulsion électrique transmise à l'électrode 9 qui produit alors une étincelle. Cette étincelle provoque l'allumage du gaz combustible dans le brûleur catalytique 3 et la formation d'une flamme. Du fait des caractéristiques propres au fonctionnement du brûleur catalytique 3, cette flamme disparaît ensuite et le brûleur 3 est porté à une haute température du fait de la combustion catalytique du mélange gaz-air qui lui est fourni par le tube 7. La chaleur produite par le brûleur 3 est transmise et répartie par la plaque de diffusion de chaleur 5, de manière à assurer le chauffage du pied du porteur de la chaussure.From the above description it can be seen that switching on the heating device according to the invention is particularly simple. In fact, the wearer of the boot first opens the regulator-tap assembly 15, placing it in a start-up or choke position in which a high flow rate of mixture of combustible gas and air is supplied by the hose. 7 to the burner 3. Then the wearer of the shoe presses on the cap 21 so as to push the gas cartridge 13 towards the bottom of the housing 12, against the spring 23. This movement results in the depression of the pusher 18 and consequently by the emission, by the piezoelectric igniter 17, of an electric pulse transmitted to the electrode 9 which then produces a spark. This spark causes the ignition of the combustible gas in the catalytic burner 3 and the formation of a flame. Due to the specific characteristics of the operation of the catalytic burner 3, this flame then disappears and the burner 3 is brought to a high temperature due to the catalytic combustion of the gas-air mixture supplied to it by the tube 7. The heat produced by the burner 3 is transmitted and distributed by the heat diffusion plate 5, so as to heat the foot of the wearer of the shoe.

Dans la variante d'exécution de l'invention représentée sur la figure 5 la cartouche de gaz interchangeable 13 est montée à l'intérieur de la paroi postérieure de la tige 11 de la chaussure qui, dans cette forme d'exécution, est constituée d'une seule partie. En-dessous de la cartouche 13 est monté l'ensemble robinet-détendeur 15 auquel est raccordé le tuyau 7 alimentant le brûleur 3 de l'ensemble chauffant 2. Le dispositif de commande du chauffage comprend un bouton de commande 25 qui peut coulisser"verticalement" à l'extérieur de la paroi postérieure de la tige 11. Dans la description qui va suivre on considérera comme étant "verticale" la direction de la paroi postérieure de la tige 11, alors que cette paroi peut être, en fait, légèrement inclinée vers l'avant. Le bouton de commande 25 est fixé à une patte 26 s'étendant à travers une lumière verticale 27 ménagée dans la paroi postérieure de la tige 11. La patte 26 constitue le prolongement externe de l'aile horizontale supérieure d'une platine de déverrouillage volontaire 28 en forme de C ouvert vers l'arrière, s'étendant verticalement. La platine de déverrouillage volontaire 28 porte, à son extrémité supérieure, une équerre 29 qui est fixée à la platine par une aile verticale et dont l'aile horizontale s'étend à faible distance, en position de fermeture du gaz, qui est représentée sur la figure 6, au-dessus du poussoir supérieur 18 de l'allumeur piézo-électrique 17 fixé à la tige 11. L'aile horizontale inférieure de la platine de déverrouillage volontaire 28 est prolongée vers le bas par une barre se terminant par une rampe de déverrouillage 31 qui agit sur l'âme horizontale supérieure 32a d'un ressort de verrouillage 32 en forme de ganse ou de U inversé. Ce ressort de verrouillage 32 est fixé à la partie inférieure de la tige 11 ou au bas de coque de la chaussure.In the alternative embodiment of the invention shown in Figure 5 the interchangeable gas cartridge 13 is mounted inside the rear wall of the upper 11 of the shoe which, in this embodiment, consists of 'only one part. Below the cartridge 13 is mounted the valve-regulator assembly 15 to which the pipe 7 supplying the burner 3 of the heating assembly 2 is connected. The heating control device comprises a control button 25 which can slide "vertically""outside the rear wall of the rod 11. In the description which follows, the direction of the rear wall of the rod 11 will be considered to be" vertical ", whereas this wall may in fact be slightly inclined forward. The control button 25 is fixed to a tab 26 extending through a vertical slot 27 formed in the rear wall of the rod 11. The tab 26 constitutes the external extension of the upper horizontal wing of a voluntary unlocking plate 28 C-shaped open rearward, extending vertically. The voluntary unlocking plate 28 carries, at its upper end, a bracket 29 which is fixed to the plate by a vertical wing and whose horizontal wing extends a short distance, in the gas closed position, which is shown on Figure 6, above the pusher upper 18 of the piezoelectric igniter 17 fixed to the rod 11. The lower horizontal wing of the voluntary unlocking plate 28 is extended downwards by a bar ending in an unlocking ramp 31 which acts on the core upper horizontal 32a of a locking spring 32 in the form of a loop or an inverted U. This locking spring 32 is fixed to the lower part of the upper 11 or to the bottom of the boot shell.

Le dispositif de commande du chauffage comporte par ailleurs une seconde platine de verrouillage 33 qui est accolée à la platine de déverrouillage volontaire 28 et qui présente une forme de C ouvert vers l'arrière. Les deux platines 28 et 33 sont accouplées l'une à l'autre par l'intermédiaire de pions de guidage 34 prévus sur l'âme de l'une des platines, en l'occurrence sur celle de la platine de déverrouillage volontaire 28, lesquels sont engagés dans des lumières 35 ménagées dans l'âme de l'autre platine 33, ces lumières 35 étant alignées et allongées verticalement. L'aile horizontale inférieure de la platine de verrouillage 33 est prolongée vers le bas par une barre qui se termine, par un crochet de verrouillage 36 susceptible de venir s'agripper sous l'âme 32a du ressort de verrouillage 32. Par ailleurs la platine de verrouillage 33 porte, à sa partie inférieure, une patte 33a en saillie qui actionne par dessous, un doigt 15a de commande du robinet 15 commandant l'ouverture et fermeture de ce robinet, ce doigt étant sollicité vers sa position d'ouverture inférieure par un ressort 15b logé dans le corps du robinet.The heating control device also comprises a second locking plate 33 which is attached to the voluntary unlocking plate 28 and which has a C shape open towards the rear. The two plates 28 and 33 are coupled to each other by means of guide pins 34 provided on the core of one of the plates, in this case on that of the voluntary unlocking plate 28, which are engaged in slots 35 formed in the core of the other plate 33, these slots 35 being aligned and elongated vertically. The lower horizontal wing of the locking plate 33 is extended downwards by a bar which ends, by a locking hook 36 capable of coming to grip under the core 32a of the locking spring 32. Furthermore, the plate locking 33 carries, at its lower part, a projecting tab 33a which actuates from below, a finger 15a for controlling the valve 15 controlling the opening and closing of this valve, this finger being urged towards its lower opening position by a spring 15b housed in the valve body.

Les deux platines 28,33 ainsi que l'allumeur piézo-électrique 17 sont avantageusement montés sur un support 37 fixé à l'intérieur de la tige 11 et qui présente un épaulement d'appui 38 pour un ressort de rappel 39. Ce ressort de rappel 39 est un ressort de compression prenant appui, à son extrémité inférieure, sur l'épaulement 38, et, à son extrémité supérieure, à la fois sous les ailes horizontales supérieures des platines 28 et 33. Le ressort 39 sollicite ainsi constamment les deux platines 28,33 vers le haut et leur mouvement dans ce sens est limité par la venue en butée des ailes inférieures des platines 28,33 sous l'épaulement d'appui 38.The two plates 28, 33 as well as the piezoelectric igniter 17 are advantageously mounted on a support 37 fixed inside the rod 11 and which has a support shoulder 38 for a return spring 39. This spring of reminder 39 is a compression spring bearing, at its lower end, on the shoulder 38, and, at its upper end, both under the upper horizontal wings of the plates 28 and 33. The spring 39 thus constantly biases the two plates 28.33 upwards and their movement in this direction is limited by the abutment of the lower wings of the plates 28, 33 under the support shoulder 38.

Le bouton de commande 25 peut occuper, dans la lumière 27, trois positions verticales différentes à savoir une position extrême supérieure I, correspondant à la fermeture de l'alimentation en gaz, une position intermédiaire II, correspondant à l'ouverture de l'alimentation en gaz, et une position extrême inférieure III, correspondant à l'actionnement de l'allumeur piézo-électrique 17, ces trois positions I,II,III étant indiquées en trait mixte sur la figure 5. En position supérieure de fermeture I les différentes pièces du dispositif de commande du chauffage se trouvent dans la position illustrée sur la figure 6. Dans ce cas les deux platines 28,33, se trouvent en position extrême supérieure, en étant repoussées dans cette position par le ressort de rappel 39, leur mouvement vers le haut étant limité par la venue en butée de leurs ailes inférieures contre l'épaulement d'appui 38. Dans cette position l'aile horizontale de l'équerre 29 est située à faible distance au-dessus du poussoir 18 de l'allumeur piézo-électrique 17. Par ailleurs la rampe de déverouillage 31 et le crochet de verrouillage 36 sont situées un peu au-dessus de l'âme horizontale supérieure 32a du ressort de verrouillage 32.The control button 25 can occupy, in the lumen 27, three different vertical positions, namely an upper extreme position I, corresponding to the closing of the gas supply, an intermediate position II, corresponding to the opening of the supply. in gas, and a lower extreme position III, corresponding to the actuation of the piezoelectric igniter 17, these three positions I, II, III being indicated in phantom in Figure 5. In the upper closed position I the different parts of the heating control device are in the position illustrated in Figure 6. In this case the two plates 28,33, are in the upper extreme position, being pushed back into this position by the return spring 39, their movement upwards being limited by the abutment of their lower wings against the support shoulder 38. In this position the horizontal wing of the bracket 29 is located at low d istance above the pusher 18 of the piezoelectric igniter 17. Furthermore, the unlocking ramp 31 and the locking hook 36 are situated a little above the upper horizontal core 32a of the locking spring 32.

Lorsque le skieur désire mettre en marche le dispositif de chauffage, il appuie sur le bouton de commande 25 de manière à le déplacer vers le bas. Dans ce mouvement le bouton de commande 25 entraîne avec lui la platine de déverrouillage volontaire 28 dont il est solidaire et celle-ci entraîne à son tour immédiatement la platine de verrouillage 33, du fait que les pions de guidage 34 qui sont solidaires de la platine 28, se trouvent en contact avec les extrémités inférieures des lumières 35 ménagées dans la platine 33. Les deux platines 28,33 sont ainsi déplacées conjointement vers le bas, à l'encontre de l'action du ressort de rappel 39. Au cours de ce mouvement le crochet de verrouillage 36 glisse le long de l'âme 32a du ressort 32 en la repoussant quelque peu, après quoi il vient se placer sous cette âme pour as surer le verrouillage. La rampe de déverrouillage 31 accompagne naturellement ce mouvement. Dans le même temps la patte 33a de la platine 33 libère le doigt de commande 15a du robinet 15 si bien que ce robinet s'ouvre. Par conséquent, aussitôt que le bouton de commande 25 atteint la position intermédiaire II, le robinet 15 est ouvert et le gaz contenu dans la cartouche interchangeable 13 peut alors s'écouler à travers le tuyau 7 en direction du brûleur de l'ensemble chauffant.When the skier wishes to turn on the heating device, he presses the control button 25 so as to move it down. In this movement, the control button 25 drives with it the voluntary unlocking plate 28 with which it is integral and the latter in turn immediately drives the locking plate 33, owing to the fact that the guide pins 34 which are integral with the plate 28, are in contact with the lower ends of the openings 35 formed in the plate 33. The two plates 28, 33 are thus moved jointly downwards, against the action of the return spring 39. During this movement the locking hook 36 slides along the core 32a of the spring 32 by pushing it back somewhat, after which it comes to be placed under this core for as secure the lock. The unlocking ramp 31 naturally accompanies this movement. At the same time, the tab 33a of the plate 33 releases the control finger 15a from the tap 15 so that this tap opens. Consequently, as soon as the control button 25 reaches the intermediate position II, the valve 15 is open and the gas contained in the interchangeable cartridge 13 can then flow through the pipe 7 towards the burner of the heating assembly.

Pour provoquer l'allumage du mélange gaz-air, le skieur appuie à fond sur le bouton de commande 25 de manière à l'amener dans sa position extrême inférieure III. Au cours de ce mouvement de descente complémentaire, l'aile horizontale de l'équerre 29 qui se trouvait alors, dans la position intermédiaire II, juste en contact avec l'extrémité supérieure du poussoir 18, repousse ce poussoir vers le bas et provoque l'actionnement de l'allumeur piézo-électrique 17 qui émet une impulsion électrique donnant lieu à une étincelle d'allumage produite par l'électrode 9. Au cours de ce déplacement additionnel vers le bas la rampe de déverrouillage 31 et le crochet 36 sont déplacés un peu en dessous de l'âme 32a du ressort 32. Lors du relâchement du bouton de commande 25, après allumage du gaz, les deux platines 28,33 sont repoussées vers le haut par le ressort 39 jusqu'à ce que le crochet 36 vienne s'agripper en dessous de l'âme 32a du ressort 32. A partir de ce moment les deux platines 28,33 sont immobilisées dans la position intermédiaire d'ouverture II ainsi qu'il est représenté sur la figure 5. Dans cette position la patte 33a de la platine de verrouillage 33 se trouve située juste en dessous du doigt de commande 15a du robinet 15 qui se trouve lui-même dans sa position extrême inférieure d'ouverture dans une lumière du corps du robinet.To cause the ignition of the gas-air mixture, the skier presses the control button 25 fully so as to bring it into its lower extreme position III. During this complementary downward movement, the horizontal wing of the bracket 29 which was then, in the intermediate position II, just in contact with the upper end of the pusher 18, pushes this pusher downwards and causes l actuation of the piezoelectric igniter 17 which emits an electrical pulse giving rise to an ignition spark produced by the electrode 9. During this additional downward movement the unlocking ramp 31 and the hook 36 are moved slightly below the core 32a of the spring 32. When the control button 25 is released, after ignition of the gas, the two plates 28, 33 are pushed up by the spring 39 until the hook 36 come grip under the core 32a of the spring 32. From this moment the two plates 28,33 are immobilized in the intermediate open position II as shown in Figure 5. In this position paw 33a of the locking plate 33 is located just below the control finger 15a of the valve 15 which is itself in its extreme lower position of opening in a light in the body of the valve.

Lorsque le skieur désire arrêter le chauffage, il tire le bouton de commande 25 vers le haut pour le ramener dans sa position extrême supérieure I de fermeture. Au cours de cette phase de fermeture, le bouton de commande 25 entraîne tout d'abord le coulissement vers le haut de la seule platine de déverrouillage volontaire 28, du fait de l'accouplement réalisé par les pions de guidage 34 et les lumières 35, ces pions 34 se déplaçant alors seuls vers le haut dans les lumières 35 restant immobiles. Par conséquent seule la platine de déverrouillage volontaire 28 est déplacée vers le haut et sa rampe de déverrouillage inférieure 31, qui glisse au contact de l'âme supérieure 32a du ressort 32, repousse progressivement vers l'intérieur cette âme, en écartant ainsi progressivement le ressort jusqu'à ce que le crochet de verrouillage 36 puisse lui échapper. La pente de la rampe de déverrouillage 31 et sa longueur sont choisies de telle façon que l'échappement du crochet de verrouillage 36 se produise avant que les pions de guidage 34 n'atteignent les extrémités supérieures des lumières 35. Lorsque le crochet de verrouillage 36 échappe au ressort 32, la platine 33 est libérée et les deux platines 28,33 sont repoussées conjointement vers le haut, en position de fermeture, par le ressort 39. Dans ce mouvement la patte 33a de la platine 33 entraîne avec elle vers le haut le doigt de commande 15a du robinet 15, jusqu'à ce que celui-ci vienne se placer en position de fermeture, à l'extrémité supérieure de sa lumière de guidage.When the skier wishes to stop the heating, he pulls the control button 25 upwards to return it to its extreme upper closed position I. During this closing phase, the control button 25 firstly causes the sole voluntary release plate 28 to slide upwards, due to the coupling produced by the guide pins 34 and the slots 35, these pins 34 then moving alone upwards in the slots 35 remaining stationary. Consequently, only the voluntary unlocking plate 28 is moved upwards and its lower unlocking ramp 31, which slides in contact with the upper core 32a of the spring 32, progressively pushes this soul inwards, thereby progressively removing the spring until the locking hook 36 can escape. The slope of the unlocking ramp 31 and its length are chosen such that the escape of the locking hook 36 occurs before the guide pins 34 reach the upper ends of the slots 35. When the locking hook 36 escapes the spring 32, the plate 33 is released and the two plates 28,33 are pushed together upwards, in the closed position, by the spring 39. In this movement the tab 33a of the plate 33 drives with it upwards the control finger 15a of the tap 15, until the latter comes to be placed in the closed position, at the upper end of its guide light.

Dans la variante d'exécution de l'invention représentée sur la figure 7 le dispositif de commande du chauffage comporte également les deux platines verticales accolées 28,33, accouplées entre elles par l'intermédiaire des pions de guidage 34 logés dans les lumières allongées 35. Dans ce cas l'aile horizontale inférieure de la platine de déverrouillage volontaire 28, qui s'étend en dessous de l'épaulement d'appui 38, est placée juste au-dessus du poussoir supérieur 18 de l'allumeur piézo-électrique 17 qui est fixé à la partie inférieure de la tige 11, en dessous de l'épaulement d'appui 38. Par ailleurs la platine de verrouillage 33 porte, à sa partie extrême supérieure, un cliquet de verrouillage 41 qui est monté pivotant sur la platine 33, autour d'un axe horizontal et transversal 42. Ce cliquet 41 comprend deux branches à savoir une branche inférieure courte 41a avec laquelle est en contact l'extrémité supérieure d'une patte verticale 28a prolongeant la platine de déverouillage 28 vers le haut. Le cliquet 41 comporte également une branche supérieure plus longue 41b qui s'étend vers le haut et qui peut venir s'engager sous une dent 43 prévue sur la face interne de la paroi postérieure de la tige 11. Le cliquet 41 est sollicité élastiquement dans le sens des aiguilles d'une montre, au moyen d'un ressort 44 accroché respectivement, à ses deux extrémité, à la platine 33 et au cliquet 41 de manière que la branche supérieure 41b du cliquet 41 soit pressée constamment contre la paroi postérieure de la tige 11 de la chaussure.In the variant embodiment of the invention shown in FIG. 7, the heating control device also includes the two adjoining vertical plates 28, 33, coupled together by means of the guide pins 34 housed in the elongated slots 35 In this case the lower horizontal wing of the voluntary unlocking plate 28, which extends below the support shoulder 38, is placed just above the upper pusher 18 of the piezoelectric igniter 17 which is fixed to the lower part of the rod 11, below the support shoulder 38. Furthermore the locking plate 33 carries, at its upper end part, a locking pawl 41 which is pivotally mounted on the plate 33, around a horizontal and transverse axis 42. This pawl 41 comprises two branches, namely a short lower branch 41a with which is in contact the upper end of a vertical tab 28a extending the platinum release 28 upwards. The pawl 41 also has a longer upper branch 41b which extends upwards and which can engage under a tooth 43 provided on the internal face of the rear wall of the rod 11. The pawl 41 is resiliently biased in clockwise, by means of a spring 44 hooked respectively, at its two ends, to the plate 33 and to the pawl 41 so that the upper branch 41b of the pawl 41 is pressed constantly against the rear wall of the upper 11 of the shoe.

En position de fermeture du gaz, le bouton de commande 25 ainsi que les deux platines 28,33 se trouvent dans la position extrême supérieure I et le cliquet 41 est escamoté, sa branche supérieure 41b s'étendant librement au-dessus de la dent de verrouillage 43. Par ailleurs l'aile inférieure de la platine de déverrouillage 28 est située juste en dessous de l'épaulement 38 avec lequel elle est en contact en étant ainsi à distance du poussoir 18 de l'allumeur piézo-électrique 17.In the gas closed position, the control button 25 as well as the two plates 28, 33 are in the extreme upper position I and the pawl 41 is retracted, its upper branch 41b extending freely above the tooth of locking 43. Furthermore, the lower wing of the unlocking plate 28 is situated just below the shoulder 38 with which it is in contact, thus being at a distance from the pusher 18 of the piezoelectric igniter 17.

Lorsque le skieur veut mettre en marche le dispositif de chauffage, il appuie sur le bouton de commande 25 pour le faire passer dans la position intermédiaire d'ouverture II qui est celle représentée sur la figure 7. Au cours de son mouvement de descente la platine de déverrouillage volontaire 28 qui est entraînée directement par le bouton de commande 25, entraîne avec elle la platine de déverrouillage 33 et par conséquent le cliquet 41 porté par celle-ci. A un certain moment l'extrémité de la branche supérieure 41b du cliquet 41 passe en dessous de la dent 43 et alors le cliquet bascule dans le sens des aiguilles d'une montre autour de l'axe de pivotement 42, sous l'action du ressort de rappel 44. A partir de ce moment le cliquet 41 est engagé sous la dent 43 et il s'oppose à tout mouvement de la platine 33 vers le haut. En continuant à appuyer sur le bouton de commande 25, celui fait descendre davantage la platine de déverrouillage volontaire 28 qui agit alors, par son aile inférieure, sur le poussoir 18, en repoussant celui-ci et en provoquant l'émission de l'impulsion électrique engendrant l'étincelle d'allumage. Au cours de ce mouvement additionnel vers le bas la platine 33 suit la platine 28, comme dans le cas précédemment décrit. Lorsque le skieur relâche le bouton de commande 25, les deux platines remontent sous l'action du ressort de rappel 39 et ce mouvement de remontée est limité par la venue en butée de l'extrémité de la branche supérieure 41b du cliquet 41, qui glisse contre la face intérieure de la tige 11, avec la dent de verrouillage 43. Les deux platines 28,33 sont alors immobilisées dans la position intermédiaire d'ouverture II qui est représentée sur la figure 7.When the skier wants to turn on the heating device, he presses the control button 25 to move it into the intermediate opening position II which is that shown in FIG. 7. During its downward movement, the plate voluntary unlocking 28 which is driven directly by the control button 25, drives with it the unlocking plate 33 and therefore the pawl 41 carried by the latter. At some point the end of the upper branch 41b of the pawl 41 passes below the tooth 43 and then the pawl swings clockwise around the pivot axis 42, under the action of the return spring 44. From this moment the pawl 41 is engaged under the tooth 43 and it opposes any movement of the plate 33 upwards. By continuing to press the control button 25, this causes the voluntary unlocking plate 28 to descend further, which then acts, by its lower wing, on the pusher 18, by repelling the latter and causing the emission of the pulse electric generating the ignition spark. During this additional downward movement the plate 33 follows the plate 28, as in the case previously described. When the skier releases the control button 25, the two plates go up under the action of the return spring 39 and this upward movement is limited by the abutment of the end of the upper branch 41b of the pawl 41, which slides against the inner face of the rod 11, with the locking tooth 43. The two plates 28,33 are then immobilized in the intermediate opening position II which is shown in FIG. 7.

Si le skieur veut couper le chauffage de la chaussure, il tire vers le haut sur le bouton de commande 25 pour le ramener dans la position extrême supérieure I. L'effort exercé vers le haut sur le bouton de commande 25 est transmis à la platine 28 et la patte 28a de celle-ci agit alors sur la petite branche inférieure 41a du cliquet 41, de manière à faire pivoter ce cliquet dans le sens inverse des aiguilles d'une montre. Par suite de ce mouvement la branche supérieure 41b du cliquet échappe à la dent 43 et les deux platines 28,33 peuvent alors remonter en position extrême supérieure I sous l'action du ressort de rappel 39.If the skier wants to switch off the heating of the boot, he pulls up on the control button 25 to bring it back to the extreme upper position I. The force exerted upwards on the control button 25 is transmitted to the plate. 28 and the tab 28a of the latter then acts on the small lower branch 41a of the pawl 41, so as to rotate this pawl anticlockwise. As a result of this movement, the upper branch 41b of the pawl escapes from the tooth 43 and the two plates 28, 33 can then go back to the upper extreme position I under the action of the return spring 39.

Le dispositif de chauffage de la chaussure suivant l'invention peut être avantageusement pourvu d'un dispositif de régulation automatique de la température. Des formes d'exécution non limitatives d'un tel dispositif de régulation de température sont illustrées sur les figures 8,9 et 10.The shoe heating device according to the invention can advantageously be provided with an automatic temperature regulation device. Non-limiting embodiments of such a temperature control device are illustrated in FIGS. 8, 9 and 10.

Le dispositif de régulation de température représenté sur la figure 8 comporte un circuit fermé 45 rempli d'un fluide dilatable. Ce circuit fermé 45 comprend, à une extrémité, un bulbe 46 situé à proximité de la source de chaleur constituée en l'occurrence par le brûleur catalytique 3, un tube capillaire intermédiaire 47, et à son autre extrémité, un actionneur à membrane 48. Cet actionneur est fixé à la face interne de la paroi postérieure de la tige 11, à proximité du doigt 15a de commande d'ouverture et de fermeture du robinet d'alimentation en gaz 15. L'actionneur 48 comprend un boîtier dans lequel est ménagée une chambre séparée en deux parties par une membrane déformable 49. Le tube 47 contenant le fluide dilatable est relié à une chambre de travail 51 délimitée par la membrane déformable 49 et le fond du boîtier. Dans l'autre chambre est logé un ressort 52 de rappel de la membrane 49. De ce côté la membrane 49 est également prolongée par un plongeur 53 fixé au centre de la membrane et sortant à l'extérieur du boîtier de l'actionneur 48. A son extrémité externe le plongeur 53 est en contact avec une branche inférieure 54a, s'étendant vers le bas, d'un levier 54 en forme d'équerre qui est articulé autour d'un axe horizontal et transversal 55. Ce levier 54 comporte par ailleurs une branche horizontale 54b s'étendant en direction de l'intérieur de la chaussure et qui est en contact sous le doigt 15a de commande d'ouverture et de fermeture du robinet 15, lequel est constamment sollicité vers le bas par le ressort de rappel 15b incorporé dans le corps du robinet 15.The temperature control device shown in Figure 8 has a closed circuit 45 filled with an expandable fluid. This closed circuit 45 comprises, at one end, a bulb 46 located near the heat source constituted in this case by the catalytic burner 3, an intermediate capillary tube 47, and at its other end, a membrane actuator 48. This actuator is fixed to the internal face of the rear wall of the rod 11, near the finger 15a for controlling the opening and closing of the gas supply valve 15. The actuator 48 comprises a housing in which is formed a chamber separated into two parts by a deformable membrane 49. The tube 47 containing the expandable fluid is connected to a working chamber 51 delimited by the deformable membrane 49 and the bottom of the housing. In the other chamber is housed a spring 52 for returning the diaphragm 49. On this side the diaphragm 49 is also extended by a plunger 53 fixed at the center of the diaphragm and exiting outside the actuator housing 48. At its outer end the plunger 53 is in contact with a lower branch 54a, extending downwards, of a lever 54 in the form of a square which is articulated around a horizontal and transverse axis 55. This lever 54 comprises also a horizontal branch 54b extending towards the inside of the shoe and which is in contact under the finger 15a for controlling the opening and closing of the valve 15, which is constantly biased downwards by the spring of reminder 15b incorporated in the valve body 15.

D'après la description qui précède on peut voir que par conséquent, lorsque la température du bulbe 46 et par conséquent celle du fluide contenu dans le circuit fermé 45 atteignent une valeur de seuil prédéterminée, la dilatation du fluide à l'intérieur du circuit fermé 45 provoque une expansion du volume de la chambre de travail 51 par déplacement de la membrane 49 vers la gauche sur la figure 8. Du fait de ce déplacement le poussoir 53 fait pivoter le levier 54 dans le sens des aiguilles d'une montre si bien que la branche horizontale supérieure 54b de ce levier 54 repousse le doigt 15a vers le haut en provoquant la fermeture du robinet 15 et la coupure de l'alimentation du bruleur 3 en gaz. Lorsque la température s'abaisse de nouveau, le fluide contenu dans le circuit fermé 45 et notamment dans le bulbe 46 se contracte, la membrane 49 et le poussoir 53 se déplacent vers la droite et le ressort de rappel 15b fait revenir le doigt de commande 15a du robinet 15 en position inférieure d'ouverture. Le brûleur 3 est alors de nouveau alimenté en gaz et la combustion catalytique peut reprendre, la chaleur résiduelle de la plaque étant suffisante pour redéclencher ladite combustion.From the above description it can be seen that consequently, when the temperature of the bulb 46 and consequently that of the fluid contained in the closed circuit 45 reach a predetermined threshold value, the expansion of the fluid inside the closed circuit 45 causes an expansion of the volume of the working chamber 51 by displacement of the membrane 49 to the left in FIG. 8. Due to this displacement, the pusher 53 pivots the lever 54 clockwise so well that the upper horizontal branch 54b of this lever 54 pushes the finger 15a upwards, causing the valve 15 to close and the gas supply to the burner 3 to be cut off. When the temperature drops again, the fluid contained in the closed circuit 45 and in particular in the bulb 46 contracts, the membrane 49 and the pusher 53 move to the right and the return spring 15b causes the control finger to return 15a of the tap 15 in the lower open position. The burner 3 is then again supplied in gas and catalytic combustion can resume, the residual heat of the plate being sufficient to re-ignite said combustion.

Dans la variante d'exécution de l'invention représentée sur les figures 9,9A et 9B le plongeur 53 de l'actionneur à membrane 48 porte, à l'extérieur du boîtier de cet actionneur, deux doigts radiaux 56,57 diamétralement opposés. En position d'arrêt ou fermeture du gaz qui est représentée sur la figure 9, le doigt 56 maintient immobilisée, entre ce doigt 56 et la paroi du boîtier de l'actionneur 48, une aile horizontale 58a d'une fourchette de commande 58 comportant une aile verticale 58b s'étendant vers le haut. Cette aile verticale 58b est percée d'une ouverture à travers laquelle s'étend la branche droite d'un levier 59 articulé autour d'un axe horizontale 60 perpendiculaire au plan de la feuille de dessin. La branche gauche du levier 59 s'étend au-dessus de l'extrémité externe du plongeur 53, à distance de celle-ci. L'extrémité de la branche droite du levier 59 est reliée à un tiroir de commande vertical 61 qui est sollicité vers le haut par un ressort de rappel 62 et qui peut être appliqué sur un siège 63 situé en dessous de lui, lequel constitue l'orifice d'un conduit d'arrivée de gaz 64. Le siège 63 est interposé sur le trajet d'écoulement du gaz depuis le conduit d'arrivée 64 jusqu'au brûleur 3. Par ailleurs le dispositif de régulation représenté sur la figure 9 comporte une came de commande d'ouverture du gaz 65, rappelée en position horizontale par un ressort de rappel non représenté, laquelle est montée à rotation autour d'un axe 66, au-dessous du doigt radial 57 du plongeur 53 s'étendant au-delà du boîtier de l'actionneur 48, de manière à pourvoir soulever ce doigt 57 et par conséquent le plongeur 53 par rotation manuelle de la came 65 en position verticale.In the variant embodiment of the invention shown in FIGS. 9.9A and 9B, the plunger 53 of the membrane actuator 48 carries, outside the housing of this actuator, two radially opposite radial fingers 56, 57. In the stopping or closing position of the gas which is shown in FIG. 9, the finger 56 keeps immobilized, between this finger 56 and the wall of the actuator housing 48, a horizontal wing 58a of a control fork 58 comprising a vertical wing 58b extending upwards. This vertical wing 58b is pierced with an opening through which extends the straight branch of a lever 59 articulated around a horizontal axis 60 perpendicular to the plane of the drawing sheet. The left arm of the lever 59 extends above the outer end of the plunger 53, at a distance therefrom. The end of the right arm of the lever 59 is connected to a vertical control slide 61 which is urged upwards by a return spring 62 and which can be applied to a seat 63 located below it, which constitutes the orifice of a gas inlet duct 64. The seat 63 is interposed on the gas flow path from the inlet duct 64 to the burner 3. Furthermore, the regulating device shown in FIG. 9 comprises a gas opening control cam 65, returned to the horizontal position by a return spring not shown, which is rotatably mounted about an axis 66, below the radial finger 57 of the plunger 53 extending beyond beyond the housing of the actuator 48, so as to be able to lift this finger 57 and consequently the plunger 53 by manual rotation of the cam 65 in a vertical position.

En position d'arrêt, ainsi qu'il est représenté sur la figure 9, aucune pression n'est créée dans la chambre de travail inférieure 51, en-dessous de la membrane 49, du fait que le bulbe 46 n'est pas chauffé par le brûleur 3 alors éteint. La membrane 49 est alors repoussée vers le bas par le ressort 52 et le plongeur 53 est tiré au maximum à l'intérieur du boîtier de l'actionneur 48. Dans cette position le plongeur 53 maintient l'aile horizontale 58a de la fourchette de commande 58 prisonnière entre son doigt droit 56 et la paroi du boîtier de l'actionneur 48. L'ouverture prévue dans l'aile verticale 58b de la fourchette 58 se trouve en-dessous de l'axe de pivotement 60 si bien que le levier 59 est incliné de haut en bas et de la gauche vers la droite. Dans cette position le tiroir de commande 61 est plaqué contre le siège 63 si bien que l'alimentation en gaz du brûleur 3 est interrompue. Dans cette position d'arrêt la came 65 est allongée dans le sens horizontal juste en dessous du doigt gauche 57 du plongeur 53.In the stop position, as shown in Figure 9, no pressure is created in the lower working chamber 51, below the membrane 49, because the bulb 46 is not heated by burner 3 then extinguished. The membrane 49 is then pushed down by the spring 52 and the plunger 53 is pulled as far as possible inside the housing of the actuator 48. In this position the plunger 53 keeps the horizontal wing 58a of the control fork 58 trapped between his right finger 56 and the wall of the actuator housing 48. The opening provided in the vertical wing 58b of the fork 58 is located below the pivot axis 60 so that the lever 59 is tilted up and down and from the left to the right. In this position the control slide 61 is pressed against the seat 63 so that the gas supply to the burner 3 is interrupted. In this stop position, the cam 65 is extended in the horizontal direction just below the left finger 57 of the plunger 53.

Lorsque le skieur désire mettre en marche le dispositif de chauffage, il fait tourner la came de commande 65 dans le sens des aiguilles d'une montre autour de l'axe 66, pour l'amener en position verticale comme il est représenté sur la figure 9A. Au cours de ce mouvement de rotation la came 65 repousse vers le haut le doigt gauche 57, ce qui provoque le soulèvement du plongeur 53 à l'extérieur du boîtier de l'actionneur 48. Au cours de ce mouvement le doigt droit 56 du plongeur 53 libère l'aile horizontale 58a de la fourchette 58 si bien que cette fourchette 58 peut également se déplacer vers le haut, sous l'action du ressort de rappel 62 qui repousse le tiroir de commande 61 vers le haut et fait pivoter le levier de commande 59 dans le sens inverse des aiguilles d'une montre autour de l'axe de pivotement 60. Le tiroir 61 s'écarte alors du siège 63 si bien que le gaz peut s'écouler à travers ce siège et peut parvenir au brûleur 3 où il est allumé au moyen du dispositif d'allumage piézo-électrique comme il a été indiqué précédemment. Dans la position de chauffage modéré qui est illustrée sur la figure 9A, la membrane 49 s'étend horizontalement, de même que le levier de commande 59 qui se trouve alors en appui par sa branche gauche contre l'extrémité supérieure du poussoir 53.When the skier wishes to turn on the heating device, he rotates the control cam 65 clockwise around the axis 66, to bring it to the vertical position as shown in the figure 9A. During this rotational movement the cam 65 pushes up the left finger 57, which causes the lifting of the plunger 53 outside the actuator housing 48. During this movement the right finger 56 of the plunger 53 releases the horizontal wing 58a from the fork 58 so that this fork 58 can also move upwards, under the action of the return spring 62 which pushes the control drawer 61 upwards and makes the lever control 59 anticlockwise around the pivot axis 60. The drawer 61 then moves away from the seat 63 so that the gas can flow through this seat and can reach the burner 3 where it is ignited by means of the piezoelectric ignition device as indicated above. In the moderate heating position which is illustrated in FIG. 9A, the membrane 49 extends horizontally, as does the control lever 59 which is then pressed by its left branch against the upper end of the pusher 53.

A partir de ce moment le dispositif de régulation intervient pour couper l'alimentation en gaz lorsque la température dépasse une valeur de seuil prédéterminée. Dans ce cas la dilatation du gaz contenu dans le circuit fermé 45 est telle que la pression produite dans la chambre de travail inférieure 51 provoque une déformation de la membrane 49 vers le haut comme il est représenté sur la figure 9B. Le poussoir 53 est alors davantage repoussé vers l'extérieur, à l'encontre du ressort du rappel 52 et ce mouvement vertical vers le haut du poussoir 53 provoque un pivotement du levier de commande 59 dans le sens des aiguilles d'une monte autour de l'axe 60. La branche droite de ce levier 59 s'abaisse alors en faisant redescendre d'une part la fourchette de commande 58, dont l'aile horizontale 58a vient de nouveau en appui contre la paroi supérieure du boîtier de l'actionneur 48, et d'autre part le tiroir de commande 61 qui ferme alors le siège 63. A ce moment l'alimentation du brûleur 3 en gaz est coupée.From this moment the regulating device intervenes to cut off the gas supply when the temperature exceeds a predetermined threshold value. In this case the expansion of the gas contained in the closed circuit 45 is such that the pressure produced in the lower working chamber 51 causes an upward deformation of the membrane 49 as shown in FIG. 9B. The pusher 53 is then pushed further outwards, against the return spring 52 and this vertical upward movement of the pusher 53 causes the control lever 59 to pivot in the clockwise direction around the axis 60. The right arm of this lever 59 then lowers by lowering on the one hand the control fork 58, the horizontal wing 58a of which again comes to bear against the upper wall of the actuator housing 48, and on the other hand the control slide 61 which then closes the seat 63. At this time the gas supply to the burner 3 is cut off.

Lorsque la température s'abaisse en dessous de la valeur du seuil, le ressort 52 repousse la membrane 49 et le poussoir 53 vers le bas, le levier 59 est alors libéré et le ressort de rappel 62 repousse le tiroir 61 vers le haut, en ouvrant le siège 63, pour rétablir l'alimentation du brûleur 3 en gaz.When the temperature drops below the threshold value, the spring 52 pushes the membrane 49 and the pusher 53 down, the lever 59 is then released and the return spring 62 pushes the drawer 61 upwards, opening the seat 63, to restore the gas supply to the burner 3.

Sur les figures 10,10A et 10B est représentée une variante d'exécution du dispositif de régulation qui utilise un bilame 68 qui est ancré à son extrémité inférieure fixe 68a et qui est incliné d'un côté par rapport à la verticale, c'est-à-dire vers la gauche sur le dessin, en étant en contact, dans la position d'arrêt représentée sur la figure 10, avec un doigt de maintien fermé 67a solidaire de l'extrémité gauche d'une tringle de manoeuvre horizontale 67. Par ailleurs une came d'actionnement 65, manoeuvrable manuellement, est disposée à proximité immédiate de la partie supérieure du bilame afin de redresser celui-ci en position verticale rectiligne. La tringle de manoeuvre inférieure 67 est montée à coulissement horizontal et son extrémité droite est articulée à l'extrémité de la branche inférieure d'un levier 69 articulé autour d'un axe horizontal 71 perpendiculaire au plan de la feuille de dessin. La branche supérieure du levier 69 est reliée, en un point de sa longueur, à une tringle de manoeuvre supérieure 72 montée à coulissement horizontal. La branche supérieure du levier 69 est accouplée, à son extrémité supérieure à un piston 73 monté à coulissement horizontal dans un alésage formé dans un corps de vanne 74. Ce piston 73 est sollicité constamment vers l'extérieur par un ressort de rappel 75. Le piston 73 porte, sur sa face frontale interne, un joint 76 pouvant venir obturer un siège de clapet 77 prévu à l'endroit de l'orifice d'un conduit d'arrivée de gaz 78 ménagé dans le corps 74, coaxialement avec le piston 73. Dans l'alésage dans lequel coulisse ce piston 73 débouche un conduit latéral 79 relié au brûleur 3.In Figures 10, 10A and 10B is shown an alternative embodiment of the regulating device which uses a bimetallic strip 68 which is anchored at its fixed lower end 68a and which is inclined on one side relative to the vertical, this is that is to say to the left in the drawing, while being in contact, in the stop position shown in FIG. 10, with a closed retaining finger 67a secured to the left end of a horizontal operating rod 67. Furthermore, an actuating cam 65, which can be operated manually, is arranged in the immediate vicinity of the upper part of the bimetallic strip in order to straighten the latter in a rectilinear vertical position. The lower operating rod 67 is mounted with horizontal sliding and its straight end is articulated at the end of the lower branch of a lever 69 articulated around a horizontal axis 71 perpendicular to the plane of the drawing sheet. The upper branch of the lever 69 is connected, at a point along its length, to an upper operating rod 72 mounted with horizontal sliding. The upper branch of the lever 69 is coupled, at its upper end to a piston 73 mounted to slide horizontally in a bore formed in a valve body 74. This piston 73 is constantly biased towards the outside by a return spring 75. The piston 73 carries, on its internal front face, a seal 76 which can close off a valve seat 77 provided at the location of the orifice of a gas inlet duct 78 formed in the body 74, coaxially with the piston 73. In the bore in which this piston 73 slides opens a lateral duct 79 connected to the burner 3.

En position d'arrêt, ainsi qu'il est représenté sur la figure 10, le bilame 68 est incliné vers la gauche en étant en contact avec le doigt 67a qui se trouve ainsi tiré vers la gauche. Par conséquent le levier 69 maintient le piston 73 à l'encontre du ressort de rappel 75 dans sa position extrême droite dans laquelle il applique le joint 76 sur le siège 77, en obturant ainsi le passage du gaz en direction du brûleur 3 qui n'est pas, de ce fait, alimenté.In the stopped position, as shown in FIG. 10, the bimetallic strip 68 is inclined to the left while being in contact with the finger 67a which is thus pulled to the left. Consequently, the lever 69 maintains the piston 73 against the return spring 75 in its extreme right position in which it applies the seal 76 to the seat 77, thereby blocking the passage of the gas in the direction of the burner 3 which does not is not, therefore, fed.

Lorsque le skieur désire mettre en marche le dispositif de chauffage, il fait tourner manuellement la came 65 de 90° de manière à l'amener dans la position horizontale représentée sur la figure 10A. La came 65 est tournée en position horizontale juste pendant la période de temps nécessaire pour l'allumage, après quoi elle est ramenée en position de repos verticale par un ressort de rappel approprié non représenté. Dans la position horizontale la came 65 repousse le bilame 68 par rapport à sa position au repos, pour l'amener en position rectiligne verticale. Le bilame 68 libère alors le doigt de maintien 67a, et par conséquent la tringle de manoeuvre inférieure 67 et le levier 69. Ceci se traduit par un pivotement, sous l'action du ressort 75, du levier 69 dans le sens inverse des aiguilles d'une montre si bien que sa branche supérieure se déplace vers la gauche. De ce fait le piston 73 est tiré vers l'extérieur, son joint 76 s'écarte du siège 77 et une communication est établie entre le conduit d'arrivée de gaz 78 et le conduit 79 relié au brûleur 3. Ce brûleur est alors alimenté en gaz qui est allumé au moyen de l'allumeur piézo-électrique comme précédamment décrit.When the skier wishes to turn on the heating device, he manually rotates the cam 65 by 90 ° so as to bring it into the horizontal position shown in FIG. 10A. The cam 65 is rotated in the horizontal position just for the period of time necessary for ignition, after which it is brought back to the vertical rest position by a suitable return spring, not shown. In the horizontal position the cam 65 pushes the bimetallic strip 68 relative to its rest position, to bring it into a vertical rectilinear position. The bimetallic strip 68 then releases the retaining finger 67a, and consequently the lower operating rod 67 and the lever 69. This results in a pivoting, under the action of the spring 75, of the lever 69 in the counterclockwise direction d 'a watch so that its upper branch moves to the left. Of this fact the piston 73 is pulled outwards, its seal 76 moves away from the seat 77 and a communication is established between the gas inlet pipe 78 and the pipe 79 connected to the burner 3. This burner is then supplied with gas which is ignited by means of the piezoelectric igniter as previously described.

La figure 10B illustre le fonctionnement en régulation. Au cours du chauffage par le brûleur 3, le bilame 68 se déforme progressivement et s'incline de plus en plus vers la droite. Lorsque la température atteint une valeur de seuil prédéterminée, la déformation du bilame 68 est suffisante pour que celui-ci repousse, par sa partie supérieure, la tringle de manoeuvre supérieure 72 vers la droite. Cette tringle provoque alors un pivotement du levier 69 dans le sens des aiguilles d'une montre, si bien que le piston 73 est repoussé vers la droite dans l'alésage du corps 74 jusqu'à ce que son joint 76 vienne obturer le siège 77. A partir de ce moment l'alimentation en gaz est coupée et le brûleur 3 s'éteint.FIG. 10B illustrates the regulation operation. During heating by the burner 3, the bimetallic strip 68 gradually deforms and tilts more and more to the right. When the temperature reaches a predetermined threshold value, the deformation of the bimetallic strip 68 is sufficient for it to push, by its upper part, the upper operating rod 72 to the right. This rod then causes the lever 69 to pivot clockwise, so that the piston 73 is pushed to the right in the bore of the body 74 until its seal 76 comes to close the seat 77 From this moment the gas supply is cut off and the burner 3 goes out.

Lorsque la température s'abaisse, le bilame 68 se déforme en direction de sa position verticale, il libère alors la tringle de manoeuvre 72 et le piston 73 peut être repoussé vers l'extérieur, sous l'action du ressort de rappel 75, en rétablissant alors la communication entre le conduits 78 et 79 et l'alimentation en gaz du brûleur 3.When the temperature drops, the bimetallic strip 68 deforms in the direction of its vertical position, it then releases the operating rod 72 and the piston 73 can be pushed outwards, under the action of the return spring 75, in then re-establishing communication between the conduits 78 and 79 and the gas supply to the burner 3.

Le dispositif de régulation de température, qui à été décrit en référence aux figures 10, 10A et 10B, présente l'avantage d'assurer une coupure automatique de l'alimentation en gaz dans le cas d'un arrêt de la combustion. En effet si le brûleur 3 vient à s'éteindre, le bilame 5 se refroidit et il se déforme pour revenir occuper sa position de repos illustrée sur la figure 10. Ceci est rendu possible du fait que la came 65 est passée en position horizontale uniquement pour provoquer l'ouverture initiale du circuit d'alimentation en gaz et qu'elle revient ensuite en position verticale, comme il est représenté sur la figure 10B. Au cours du mouvement de retour du bilame 68 en position de repos, celui-ci vient à un certain moment en contact avec le doigt de maintien 67a et il entraîne ensuite ce doigt et la tringle de manoeuvre inférieure 67 vers la gauche. Ceci provoque alors un pivotement du levier 69 dans le sens des aiguilles d'une montre et par conséquent la fermeture du siège de clapet 77 par le piston 73.The temperature control device, which has been described with reference to FIGS. 10, 10A and 10B, has the advantage of ensuring an automatic cut-off of the gas supply in the event of a combustion stop. In fact, if the burner 3 goes out, the bimetallic strip 5 cools and it deforms to return to occupy its rest position illustrated in FIG. 10. This is made possible by the fact that the cam 65 has moved to the horizontal position only to cause the initial opening of the gas supply circuit and that it then returns to the vertical position, as shown in FIG. 10B. During the return movement of the bimetallic strip 68 in the rest position, it comes into contact with the retaining finger 67a and then it drives this finger and the lower operating rod 67 to the left. This then causes the lever 69 to pivot clockwise and consequently to close the valve seat 77 by the piston 73.

On décrira maintenant, en se référant aux figures 11 à 14, diverses formes d'exécution de dispositifs de visualisation du fonctionnement du brûleur 3.We will now describe, with reference to FIGS. 11 to 14, various embodiments of devices for visualizing the operation of the burner 3.

Le dispositif de visualisation représenté sur la figure 11 comprend un capteur optique 81 qui est disposé à côté du brûleur 3, et qui est relié, par une fibre optique 82, à un point d'observation 83 qui est prévu sur le dessus de la partie antérieure du bas de coque de la chaussure comme il est représenté sur la figure 1 et qui constitue un point lumineux dû à l'incandescence du gaz à l'endroit du brûleur. Le skieur peut ainsi vérifier aisément que le brûleur 3 est bien en fonctionnement.The display device shown in FIG. 11 comprises an optical sensor 81 which is arranged next to the burner 3, and which is connected, by an optical fiber 82, to an observation point 83 which is provided on the top of the part anterior of the bottom of the boot shell as shown in FIG. 1 and which constitutes a luminous point due to the incandescence of the gas at the location of the burner. The skier can thus easily check that the burner 3 is indeed in operation.

Dans la variante d'exécution de l'invention représentée sur la figure 12 le dispositif de visualisation comprend, à proximité immédiate du brûleur 3, un bulbe 84 qui est relié, par un tube capillaire 85, à un dispositif indicateur 86 prévu sur la partie antérieure et supérieure du bas de coque. Le bulbe 84 et le tube capillaire 85 contiennent un fluide dilatable et la dilatation de ce fluide, lorsque la température du brûleur 3 est élevée, provoque le déplacement d'un index mobile 86a devant une fenêtre 86b du dispositif indicateur 86.In the variant embodiment of the invention shown in FIG. 12, the display device comprises, in the immediate vicinity of the burner 3, a bulb 84 which is connected, by a capillary tube 85, to an indicator device 86 provided on the part anterior and superior of the bottom of hull. The bulb 84 and the capillary tube 85 contain an expandable fluid and the expansion of this fluid, when the temperature of the burner 3 is high, causes the displacement of a movable index 86a in front of a window 86b of the indicating device 86.

Dans la variante d'exécution de l'invention représentée sur les figures 13 et 14 le dispositif de visualisation comprend un bilame 87 s'étendant à proximité du brûleur 3 de manière à pouvoir être chauffé par ce dernier. Ce bilame prend appui sur une extrémité d'une branche d'un levier à deux branches 88 articulé autour d'un axe 89 et dont l'autre branche est reliée à une extrémité d'un câble flexible 91. Ce câble peut coulisser dans une gaine 92 qui s'étend jusqu'à un dispositif indicateur 93 placé sur la partie supérieure et antérieure du bas de coque. Dans ce dispositif indicateur l'autre extrémité du câble 91 est attachée à un témoin mobile 94 qui peut se déplacer devant une fenêtre 93a du boîtier du dispositif indicateur 93.In the alternative embodiment of the invention shown in Figures 13 and 14 the display device comprises a bimetallic strip 87 extending near the burner 3 so as to be able to be heated by the latter. This bimetal rests on one end of a branch of a lever with two branches 88 articulated around an axis 89 and the other branch of which is connected to one end of a flexible cable 91. This cable can slide in a sheath 92 which extends to an indicating device 93 placed on the upper and anterior part of the shell bottom. In this device indicator the other end of the cable 91 is attached to a mobile indicator 94 which can move in front of a window 93a of the housing of the indicator device 93.

Claims (26)

  1. Alpine or cross-country ski shoe provided with a heating device, comprising a heating assembly housed in the sole of the shoe, this heating assembly comprising a catalytic burner (3) and a heat-diffusion plate placed in the bearing zone of the foot of the wearer of the shoe, a source of combustible gas (13) connected to the catalytic burner (3) via a pressure reducing valve (15), and a heating control device, characterized in that the source of combustible gas is constituted by an interchangeable gas cartridge (13) engaged in a receiving housing (12) provided on the posterior part of the upper (11) of the shoe, outside or inside same, this receiving housing (12) being made in the form of a prismatic or cylindrical box open at its upper end and in which the cartridge (13) is engaged from top to bottom, with its gas outlet orifice directed downwardly.
  2. Shoe according to Claim 1, characterized in that the receiving housing (12) for the gas cartridge (13) is provided on the rear face of a rear cap (11b) of the upper (11) which is articulated, in its lower part, around a horizontal, transverse axis.
  3. Shoe according to Claim 2, characterized in that the receiving housing (12) is fast by moulding with the rear cap (11b).
  4. Shoe according to any one of Claims 1 to 3, characterized in that, below the housing (12) is disposed an assembly (15) forming pressure reducing valve to which is connected an ambient air inlet device (16), to form, downstream, an appropriate gas-air mixture for combustion.
  5. Shoe according to any one of Claims 1 to 4, characterized in that the upper outer end of the gas cartridge (13) is housed in a mobile cap (21) which is slidably engaged in the upper part of the housing (12), this cap (21) being in abutment, on the one hand, on the upper bottom of the gas cartridge (13) and, on the other hand, on a pusher element (18) of an igniter (17) connected to an ignition electrode (9) disposed in the vicinity of the burner (3).
  6. Shoe according to either one of Claims 4 and 5, characterized in that the lower or inner end of the gas cartridge (13) is in abutment on a piston (22) mounted to slide in the housing (12) and which is elastically pushed upwardly by a compression spring (23) disposed between the piston (22) and the bottom of the housing (12), this piston (22) bearing, in its central part, a pressure reducing valve (15) whose outlet is connected to the air inlet device (16).
  7. Shoe according to Claim 6, characterized in that the space in which is housed the air inlet device (16) communicates with the outside via one or more vents (24) made in the wall of the housing (12) containing the cartridge (13) and across each air inlet vent (24) there extends a filtering element made (sic.) a material which is air-permeable but impermeable to the foreign bodies coming from the environment, particularly snow.
  8. Shoe according to Claim 1, characterized in that the interchangeable gas cartridge (13) is mounted inside the posterior wall of the upper (11) of the shoe and the heating control device comprises a control button (25) which may slide substantially vertically outside the posterior wall of the upper (11) of the shoe, this control button (25) being fixed to a tab (26) extending across a vertical slot (27) made in the posterior wall of the upper (11), and able to occupy, in the slot (27), three different vertical positions, namely an extreme upper position (I), corresponding to the closure of the gas supply, an intermediate position (II) corresponding to the opening of the gas supply and an extreme lower position (III), corresponding to the actuation of a piezo-electric igniter (17) connected to an ignition electrode (9) disposed in the vicinity of the burner (3).
  9. Shoe according to Claim 8, characterized in that the heating control device comprises, inside the upper (11) of the shoe, a voluntary unlocking plate (28) in the form of a rearwardly open C, extending substantially vertically, of which the upper horizontal arm extends, outside the upper(11) of the shoe, by the tab (26) bearing the control button (25), and a locking plate (33) which is coupled to the voluntary unlocking plate (28), presents the form of a rearwardly open C and extends substantially vertically, the locking plate (33) bears a member (33a) for actuating a control finger (15a) of a gas supply valve (15), as well as locking means (36, 41) cooperating with hooking means (32, 43) provided on the upper (11) of the shoe to maintain the gas supply valve (15) in open position, and the two plates (28, 33) are pushed upwardly by a spring (39) and they are coupled to each other via connecting means (34, 35) allowing a vertical upward movement, of limited amplitude, solely of the voluntary unlocking plate (28) with respect to the locking plate (33) remaining fixed.
  10. Shoe according to Claim 9, characterized in that the means for connection between the two plates (28, 33) are constituted by guiding lugs (34) provided on the web of one of the plates (28) and which are engaged in slots (35) made in the web of the other plate (33), these slots (35) being aligned and extended vertically.
  11. Shoe according to either one of Claims 9 and 10, characterized in that the spring (39) for returning the plates (28, 33) is a compression spring extending between a projection (38) provided on the inner face of the upper (11) and on which abuts at the lower end of the spring (sic.), and upper arms of the two plates (28, 33).
  12. Shoe according to Claim 11, characterized in that each of the plates (28, 33) comprises a lower arm extending beneath a fixed projection (38) borne by the inner face of the upper (11) and coming into abutment against this projection in position of closure.
  13. Shoe according to any one of Claims 9 to 12, characterized in that the member (33a) for actuating the control finger (15a) of the gas supply valve (15) is constituted by a projecting tab (33a) which actuates from underneath the control finger (15a) which is urged towards its lower position of opening by a spring (15b) housed in the body of the valve.
  14. Shoe according to any one of Claims 9 to 13, characterized in that the two plates (28, 33) as well as the piezo-electric igniter (17) are mounted on a support (37) fixed to the interior of the upper (11) and which presents the projection (38) constituting a bearing shoulder for the return spring (39).
  15. Shoe according to any one of Claims 9 to 14, characterized in that the locking plate (33) is fast, at its lower end, with a locking hook (36) capable of gripping beneath the upper horizontal web (32a) of a locking spring (32) in the form of a loop or an upturned U, which is fixed to the lower part of the upper (11) or of the bottom of the shell of the shoe, and the voluntary unlocking plate (28) bears, at its lower end, an unlocking ramp (31) whose shape is such that, during a downward movement of the voluntary unlocking plate (28), this unlocking ramp (31) pushes the web (32a) of the spring (32) to allow the locking hook (36) of the locking plate (33) to be released from the web of the locking hook (32).
  16. Shoe according to Claim 15, characterized in that the voluntary unlocking plate (28) bears, at its upper end, a bracket (29) which is fixed to the plate by a vertical arm and of which the horizontal arm extends at a short distance, in position of closure of the gas, above the upper pusher element (18) of the piezo-electric igniter (17) fixed to the upper (11).
  17. Shoe according to any one of Claims 9 to 14, characterized in that the lower horizontal arm of the voluntary unlocking plate (28), which extends below the projection (38), is placed just above the upper pusher element (18) of the piezo-electric igniter (17) which is fixed to the lower part of the upper (11), below the bearing projection (38) and the locking plate (33) bears, in its upper extreme part, a locking pawl (41) which is mounted to pivot on the plate (33), about a horizontal, transverse axis (42), this pawl (41) comprising two branches, namely a lower branch (41a) with which is in contact the upper end of a tab (28a) extending the unlocking plate (28) upwardly, and an upper branch (41b) which extends upwardly and which may come into engagement beneath a tooth (43) provided on the inner face of the posterior wall of the upper (11), the pawl (41) being urged elastically by means of a spring (44) hooked respectively, at its two ends, to the plate (33) and to the pawl (41) so that the upper branch (41b) of the pawl (41) is pressed constantly against the posterior wall of the upper (11) of the shoe.
  18. Shoe according to any one of the preceding Claims, characterized in that it comprises a device for automatically regulating the temperature.
  19. Shoe according to Claim 18, characterized in that the temperature regulating device comprises a closed circuit (45) filled with a dilatable fluid, this closed circuit (45) comprising, at one end, a bulb (46) located in the vicinity of the catalytic burner (3), an intermediate capillary connection tube (47), and, at its other end, an actuator (48) incorporating membrane, this actuator (48) comprising a box in which is made a chamber separated into two parts by a deformable membrane (49), the tube (47) containing the dilatable fluid being connected to a working chamber (51) defined by the deformable membrane (49) and the bottom of the box whilst, in the other chamber is housed a spring (52) for returning the membrane (49) as well as a plunger element (53) fixed to the membrane and emerging outside the box of the actuator (48), and a device (54, 56-60) for connection between the plunger element (53) and a mobile member (15a, 61) controlling gas supply.
  20. Shoe according to Claim 19, characterized in that the actuator is fixed near a finger (15a) for controlling opening and closure of a gas supply valve (15) and, at its outer end, the plunger element (53) is in contact with a first branch (54a) of a lever (54) which is articulated about an axis (55), which comprises a second branch (54b) extending in the direction of the interior of the shoe and which is in contact with the finger (15a) for controlling opening and closure of the valve (15), which is constantly urged towards the position of opening by a return spring (15b) incorporated in the body of the valve (15).
  21. Shoe according to Claim 19, characterized in that the plunger element (53) of the membraned actuator (48) bears, outside the box of this actuator, two fingers (56, 57) of which a first finger (56), in position of stop or closure of the gas, maintains immobilized, between this finger (56) and the wall of the box of the actuator (48), a horizontal arm (58a) of a control fork (58) comprising a vertical arm (58b) extending upwardly and which is pierced with an opening through which extends a first branch of a lever (59) articulated about a horizontal axis (60) and of which the other branch extends above the outer end of the plunger element (53), at a distance therefrom, the end of the first branch of the lever (59) is connected to a vertical control slide (61) which is urged upwardly by a return spring (62) and which may be applied on a seat (63) located therebelow, which constitutes the orifice of a gas inlet conduit (64) and which is interposed on the path of flow of the gas from the inlet conduit (64) up to the burner (3), and the regulation device comprises a gas opening control cam (65), returned into position of rest by a return spring, which is mounted to rotate about an axis (66), below the second finger (57) of the plunger element (53) extending beyond the box of the actuator (48), so as to be able to raise this finger (57) and consequently the plunger element (53) by manual rotation of the cam (65) in vertical position.
  22. Shoe according to Claim 18, characterized in that the temperature regulating device comprises a bimetal (68) which is anchored at its fixed lower end (68a) and which is inclined on one side with respect to the vertical, whilst being in contact, in the position of stop, with a closed holding finger (67a) fast with a first end of a horizontal manoeuvring rod (67), an actuation cam (65), manoeuvrable manually, which is disposed in the immediate proximity of the upper part of the bimetal (68) in order to be able to straighten up the latter in rectilinear vertical position, the lower manoeuvring rod (67) is mounted for horizontal slide and its second end is articulated at the end of the lower branch of a lever (69) articulated about a horizontal axis (71) and whose upper branch is connected, at a point of its length, to an upper manoeuvring rod (72) mounted for horizontal slide, opposite the upper part of the bimetal (68), the upper branch of the lever (69) is coupled to a piston (73) mounted for horizontal slide in a bore formed in a valve body (74) and in which opens out a lateral conduit (79) connected to the burner (3), the piston (73) being constantly urged outwardly by a return spring (75) and bearing, on its inner frontal face, a joint (76) which may obturate a valve seat (77) provided at the location of the orifice of a gas inlet conduit (78) made in the body (74), coaxially with the piston (73).
  23. Shoe according to any one of the preceding Claims, characterized in that it comprises a device for visualizing the functioning of the burner (3) comprising an indicator device (83, 86, 93) on the anterior and upper part of the vamp or the bottom of the shell of the shoe.
  24. Shoe according to Claim 23, characterized in that the visualization device comprises an optical sensor (81) which is disposed to the side of the burner (3) and which connected (sic.), by an optical fiber (82), to a luminous observation point (83).
  25. Shoe according to Claim 23, characterized in that the visualization device comprises, in the immediate proximity of the burner (3), a bulb (84) which is connected, by a capillary tube (85), to an indicator device (86), the bulb (84) and the capillary tube (85) containing a dilatable fluid and the dilation of this fluid, when the temperature of the burner (3) is high, provoking displacement of a mobile index (86a) in front of a window (86b) of the indicator device (86).
  26. Shoe according to Claim 23, characterized in that the visualization device comprises a bimetal (87) extending in the vicinity of the burner (3) so as to be able to be heated thereby, this bimetal abutting on one end of a branch of a two-branched lever (88) articulated about an axis (89) and of which the other branch is connected to one end of a flexible cable (91) sliding in a sheath (92) which extends up to an indicator device (93) in which the other end of the cable (91) is attached to a mobile control (94) which may move in front of a window (93a) of the box of the indicator device (93).
EP89402163A 1988-09-19 1989-07-28 Ski boot with a heating device Expired - Lifetime EP0361988B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89402163T ATE87439T1 (en) 1988-09-19 1989-07-28 SKI BOOT WITH HEATING DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8812197 1988-09-19
FR8812197A FR2636541B1 (en) 1988-09-19 1988-09-19 ALPINE SKI OR HIKING BOOT HAVING A HEATING DEVICE

Publications (2)

Publication Number Publication Date
EP0361988A1 EP0361988A1 (en) 1990-04-04
EP0361988B1 true EP0361988B1 (en) 1993-03-31

Family

ID=9370132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89402163A Expired - Lifetime EP0361988B1 (en) 1988-09-19 1989-07-28 Ski boot with a heating device

Country Status (6)

Country Link
US (1) US5062222A (en)
EP (1) EP0361988B1 (en)
JP (1) JPH02109501A (en)
AT (1) ATE87439T1 (en)
DE (1) DE68905738T2 (en)
FR (1) FR2636541B1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3088127B2 (en) * 1991-05-22 2000-09-18 謙治 岡安 Portable heat transfer device
US6230501B1 (en) 1994-04-14 2001-05-15 Promxd Technology, Inc. Ergonomic systems and methods providing intelligent adaptive surfaces and temperature control
US6098612A (en) * 1995-10-30 2000-08-08 Matsushita Electric Industrial Co., Ltd. Heating garment
TW200425849A (en) * 2003-05-16 2004-12-01 zhe-wei Lin Heat-generating shoes
US8087186B2 (en) * 2008-03-13 2012-01-03 Omnitek Partners Llc Piezoelectric-based toe-heaters for frostbite protection
DE202008011718U1 (en) 2008-09-03 2008-11-27 Krause, Heiko, Dipl.-Ing. Heating system for clothing
US9220315B2 (en) * 2012-08-29 2015-12-29 Nike, Inc. Article of footwear with an indicator for a heating system
SI24918A (en) 2015-02-23 2016-08-31 Alpina, Tovarna Obutve, D.O.O. Footware with an integrated heating device

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US51492A (en) * 1865-12-12 Owen w
US156117A (en) * 1874-10-20 Improvement in heating attachments for boots and-shoes
DE146353C (en) *
CH58393A (en) * 1911-09-18 1913-03-01 Leon Crouzat Shoe heater
FR2080146A5 (en) * 1970-02-25 1971-11-12 Bertincourt Michel
US3663796A (en) * 1970-03-04 1972-05-16 Timely Products Corp Electrically heated boot sock and battery supporting pouch therefor
US3585736A (en) * 1970-04-24 1971-06-22 Jeffery R Polichena Heated boots and shoes
US3977093A (en) * 1976-01-19 1976-08-31 The Raymond Lee Organization, Inc. Cold weather shoe
US4023282A (en) * 1976-11-02 1977-05-17 Francis Ziegelheafer Heated boot
US4180922A (en) * 1978-02-07 1980-01-01 Cieslak Leonard K Boot warmer
SU1223883A1 (en) * 1983-11-23 1986-04-15 Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский Институт Железнодорожного Транспорта Arrangement for heating leg foot
DE3342276A1 (en) * 1983-11-23 1985-06-05 Werner 7000 Stuttgart Maier SHOE WITH A HEATING ELEMENT
US4579103A (en) * 1984-10-01 1986-04-01 Poffenbarger Perry S Foot warming device
SE8501450D0 (en) * 1985-03-25 1985-03-25 Nils Sundh SHOOTING HEATING DEVICE
IT209335Z2 (en) * 1986-06-30 1988-09-20 Nordica Spa HEATING DEVICE, PARTICULARLY FOR SKI SHOES.
IT208028Z2 (en) * 1986-07-03 1988-03-31 Dolomite Spa HEATING DEVICE FOR SKI SHOES
US4685442A (en) * 1987-01-20 1987-08-11 Leonard Cieslak Portable heater for wearing apparel
US4736530A (en) * 1987-02-17 1988-04-12 Nikola Lakic Shoe with heat engine and reversible heat engine

Also Published As

Publication number Publication date
JPH02109501A (en) 1990-04-23
DE68905738D1 (en) 1993-05-06
FR2636541B1 (en) 1991-03-29
EP0361988A1 (en) 1990-04-04
US5062222A (en) 1991-11-05
DE68905738T2 (en) 1993-10-07
ATE87439T1 (en) 1993-04-15
FR2636541A1 (en) 1990-03-23

Similar Documents

Publication Publication Date Title
EP2705190B1 (en) Ironing appliance comprising a cordless clothes iron and a recharging base
EP0374246B1 (en) Safety lighter
EP0628148B1 (en) Child-proof gas lighter
FR2645626A1 (en) GAS LIGHTER
EP0361988B1 (en) Ski boot with a heating device
CA1145658A (en) Gas lighter
FR2743867A1 (en) LIGHTER ACTUATED BY A LONGITUDINALLY MOVABLE PUSH BUTTON, CHILD-PROOF
FR2612087A1 (en) CATALYTIC COMBUSTION TYPE ADHESIVE GUN
FR2749646A1 (en) GAS SAFETY LIGHTER FEATURING A PYROPHORIC STONE AND WHEEL IGNITION SYSTEM
EP2705189B1 (en) Clothes iron including a button for controlling the steam
FR2705762A1 (en) Lighter safety device
EP1554424B1 (en) Multipurpose drip iron
CA2180514A1 (en) Safety gas lighter
EP0368705B1 (en) Ski boot comprising a bottom shell supporting at least one articulating upper element
FR2576329A1 (en) IRON TO IRON TRAVEL
EP0368706B1 (en) Ski boot with an energy source for an energy-consuming device
EP0373009A1 (en) Ski boot with an energy source
EP1367326A2 (en) A lighter
FR2782151A1 (en) GAS LIGHTER
FR2593892A1 (en) Ignition and feed device for a gas-burning apparatus
EP0165082A1 (en) Regulating mechanism with variable rigidity for a gas-operated apparatus for the instantaneous production of warm water
FR2705763A1 (en) Safety locking device for a lighter
BE627587A (en)
BE490857A (en)
CH278412A (en) Sealing device for pressurized fluid capacity, in particular for high pressure extinguisher.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH DE IT LI

17P Request for examination filed

Effective date: 19900712

17Q First examination report despatched

Effective date: 19911119

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE IT LI

REF Corresponds to:

Ref document number: 87439

Country of ref document: AT

Date of ref document: 19930415

Kind code of ref document: T

REF Corresponds to:

Ref document number: 68905738

Country of ref document: DE

Date of ref document: 19930506

ITF It: translation for a ep patent filed

Owner name: DOTT. GIOVANNI LECCE & C.

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19930731

Ref country code: CH

Effective date: 19930731

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19960624

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19960701

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970728

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050728