EP2330935B1 - Heat-resistant glove, in particular fire department glove - Google Patents

Description

The present invention relates to a heat-resistant glove, in particular fire-fighting glove, with at least one protector according to the preamble of claim 1.

Gloves with protective panels on the back of the hand are known from the prior art. Especially in motorsports, such as motorcycle gloves, or other sports, such as motorcycle gloves. Hockey gloves, baseball gloves, etc., there are gloves with protective plates to protect against injury.

From the US 2007/0245453 A1 discloses a firefighter glove with a protective area on the back of the hand, which consists of a semi-rigid material. The US 5,822,796 A. describes a firefighter glove with a thicker back of the hand, which may also be relatively stiff.

A concrete embodiment of a glove with a protective plate on the back of the hand is also in the US 5,640,712 A shown. Furthermore, it is stated that the glove can be cleaned in the washing machine and thus withstands corresponding temperatures.

A special field of application discloses the US 2,448,697 A , where a welding glove is shown, showing a fire or a radio shield on the back of the hand.

DE 20 2004 013 316 01 discloses a high-performance skin shoe having a layered band that has one or more distracting areas in which the glove has a higher mechanical and thermal resistance.

The object of the present invention is to provide a heat-resistant and heat-insulating glove, in particular a firefighter glove, which in addition to the temperature resistance also has a resistance to high mechanical stress.

Both functions of the glove, i. Temperature resistance and resistance to high mechanical stress, are prerequisites that allow a corresponding use of the glove by its wearer. Here, the temperature resistance of the components and their insulating interaction thermal protection of the hand causes.

The resistance to high mechanical stress allows on the one hand the improved protection of the hand of the wearer. On the other hand, this extends the range of applications and lends the glove a tool-like functionality. For example, this can also be used as a striking tool.

In some applications, stresses occur that require both thermal and mechanical resistance. This is eg when pressing doors in burning buildings or by friction heat during rappelling or accidental sliding over road surface. The scope of application of such heat-resistant gloves ranges from motorcycle gloves and surgical gloves of special military units to outspoken fire-fighting gloves. Depending on the specific scenario, thermal insulation or mechanical strength are used relevant to varying degrees.

Temperature resistance and thermal insulation are ensured by a coordinated construction of different materials, which are themselves temperature-resistant, but in their interaction thermally insulating. In the simplest case, the glove in its basic structure but also be made of a single temperature-resistant material that ensures only a short-term thermal protection by the heat capacity of the otherwise homogeneous material. However, layered structures of different materials, such as e.g. Lining materials, inserts made of membranes and / or outer materials, which in combination provide increased protection of the hand from thermal stress.

The mechanical resistance is brought about by the application of mechanical stress absorbing and distributing structural elements as so-called protectors on the glove body. These protectors keep mechanical stress away from the hand or skin surface and thus protect the hand. In this case, the dimensions and location of the mostly shell, gutter, plate or plate-shaped elements are caused on the one hand by the typical stress zones and on the other by the requirements for the deformability of the glove.

The object of the present invention is achieved by a firefighter glove as a heat-insulating glove, wherein the at least one protector in the region of the back of the hand, the palm and / or hand edge is arranged and a convex or concave curvature and has a temperature resistance at least 200 ° C for at least 9 seconds. Advantageously, it turns out that, for example, when extinguishing a fire in a burning house with the help of hands or arms doors that are already burning but not yet open, can be opened or pressed with the hands protected with protectors gloves or the firefighter can protect against falling beams or the like, because the hands are protected on the one hand by the protectors against the high mechanical stress during driving and pushing in of doors or remaining components of doors or falling components and on the other hand by the temperature-resistant upper material of the firefighter glove Hands are protected from excessive heating by the fire.

The protector is designed as a hard shell, wherein the hardness of the protector, a protection of the hand against mechanical stress, especially when pressing or when opening a door, window or when pushing away burning materials, especially in tunnel fires, is given.

It is envisaged that the hard shell comprises a thermoplastic elastomer, in particular a polyamide, whereby a hard shell with high strength, rigidity and toughness can be produced.

In a further development proves to be advantageous that the thermoplastic elastomer is highly heat stabilized and a melting temperature selected from a range with has a lower limit of 200 ° C and an upper limit of 300 ° C, because both a high hardness and a high damping capacity and good flame retardant properties are given.

The thermoplastic elastomer may be glass fiber reinforced, carbon fiber reinforced, mineral filled and / or glass ball filled, which on the one hand, the temperature resistance and flame retardant properties and on the other hand, the mechanical resistance can be increased.

In particular, it proves to be advantageous that the material of the hard shell has a notched impact strength selected from a range with a lower limit of 3 kJ / m ² and an upper limit of 60 kJ / m ² , because thereby damage to the hard shell per se in strong mechanical Stress can be avoided and the fire fighter gloves can be used several times after such a burden.

Furthermore, it proves to be advantageous that the material of the hard shell has a breaking stress selected from a range with a lower limit of 40 MPa and an upper limit of 230 MPa, whereby a breakage of the hard shell or the protector can be prevented under high mechanical stress.

It is also advantageous that the material of the hard shell has a density selected from a range with a lower limit of 1.0 g / cm ³ and an upper limit of 1.6 g / cm ³ at room temperature, thereby achieving a certain rigidity and hardness can be one Ensure protection of hands against mechanical stress.

Furthermore, it is advantageous that the protector prevents heating of the material of the palm of the hand at a contact temperature of at least 250 ° C for a period of at least 10 sec, thereby ensuring that the heat next to the refractory upper material even when directly touching a glowing object of the firefighter glove is also shielded by the protector itself.

In a further development, it is provided that the at least one protector is arranged in the region of the back of the hand, palms, knuckles and / or the shaft, whereby the mechanically stressed parts when using the hands are particularly protected by the hard shell and thus injury to the hands can be avoided.

Further, it is provided in a development that the hard shell is anatomically shaped at least at that the back of the hand or the palm side, whereby the fit of the glove are not affected by the hard shell and gripping ability when wearing the firefighter glove according to the invention, because the bending of the fingers or the knuckle and the ball of a fist is still possible.

Furthermore, it is provided that the back of the hand or the palm of the hand comprises at least one layer of upper material and optionally at least one layer of lining or insert, for example a semipermeable membrane, and the Protector is arranged on or between the upper material and lining or integrated into the upper, whereby the protector, which itself already has a very high temperature resistance, is also protected by the upper of the firefighter's glove from the heat of the fire. In addition, the protector can also be covered by a trimming material. This results in a synergistic effect of heat-resistant upper material and protector, whereby their individual effects are significantly enhanced.

In an alternative embodiment, it is provided that the protector is disposed over the layer of the outer material on the outside, whereby the underlying refractory layer of the upper material is protected from mechanical stress.

In a further development it is provided that the protector is connected to the glove, in particular by sewing, gluing and / or insertion, whereby slippage of the protector with respect to the upper material can be prevented and the positioning even at high mechanical stress or actuation the finger is kept constant.

Furthermore, a damping element can be arranged in the region of the at least one protector, preferably in the area of the finger base joints, the hand edge and / or palm, whereby on the one hand the impact effect and on the other hand the protective effect under mechanical stress can be increased.

The damping element in the region of the protector can be covered by another protector or a cover, whereby the damping element does not come directly into contact with the carrier of the heat-resistant glove or the upper material. The damping element can be alls spring, in particular spiral spring, as a cushion, in particular comprising an elastomer, be formed, whereby on the one hand the impact force can be increased and on the other hand, the protective effect for the wearer is improved.

Furthermore, it is provided that at least one carabiner and / or eyelet comprising a thermoplastic material, in particular polyamide, is arranged on the glove and the at least one carabiner and / or eyelet has a temperature resistance of at least 200 ° C. for at least 9 sec, whereby the Plastic manufactured carabiner or eyelets by direct contact with the fire does not overheat zen, as may occur in known from the prior art metal carabiners or metal eyelets, and thus cause damage to the heat- or fire-resistant upper material of the firefighter glove and As a result, a violation of the firefighter in use can be prevented. Even a contact made by the fireman himself of the eyelets or carabiners according to the invention is not as dangerous as with metal eyelets or carabiners known from the prior art.

The afterburn time of the glove according to the invention is <2 seconds, which again increases the safety of the glove-wearing firefighter.

For a better understanding of the invention, this will be explained in more detail with reference to the following figures.

• Fig. 1 einen Handschuh mit Protektoren;
• Fig. 2a einen Schnitt durch einen Protektor im Bereich eines Fingerendgelenks;
• Fig. 2b einen Schnitt durch eine alternative Ausführungsform eines Protektors im Bereich der Fingerendgelenke;
• Fig. 3a einen Schnitt durch einen Protektor im Bereich eines Fingergrundgelenks;
• Fig. 3b einen Schnitt durch eine alternative Ausführungsform eines Protektors im Bereich der Fingergrundgelenke.

Each shows in a highly schematically simplified representation:

• Fig. 1 a glove with protectors;
• Fig. 2a a section through a protector in the region of a finger joint;
• Fig. 2b a section through an alternative embodiment of a protector in the region of the finger end joints;
• Fig. 3a a section through a protector in the area of a finger base joint;
• Fig. 3b a section through an alternative embodiment of a protector in the area of the finger base joints.

By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or component names. Also, the position information selected in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and are to be transferred to a new position analogous to the new situation. Furthermore, individual features or combinations of features from the illustrated and described different embodiments for themselves, inventive or inventive solutions represent.

All statements on ranges of values in the description of the present invention should be understood to include any and all sub-ranges thereof, e.g. the indication 1 to 10 should be understood to include all sub-ranges, starting from the lower limit 1 and the upper limit 10, i. all sub-areas begin with a lower limit of 1 or greater and end at an upper limit of 10 or less, e.g. 1 to 1.7, or 3.2 to 8.1 or 5.5 to 10.

Fig. 1 shows a glove 1 according to the invention with protectors 2 in the back of the hand 3. The protector 2 is preferably cup-shaped and has a temperature resistance at least 200 ° C for at least 9 seconds.

The convex or concave curvature for forming the shell shape may be approximately zero, depending on the area where the at least one protector 2 is arranged, or be greater in accordance with the anatomical requirements.

Alternative embodiments, such as the arrangement of the at least one protector 2 in the area of the shaft, the hand edge and the palm of the hand, in particular in the region of the ulnar nerve and the metacarpophalangeal joint, are not shown.

The protectors 2 according to the invention are designed as hard shell, which in addition to the temperature resistance and thus the possibility with the Working in the field of fire or extremely high temperatures, it is also possible to clear a blocked path through burning objects with the help of the gloves or to free-box them by using the protectors of the fire-fighting gloves to knock obstacles out of the way.

The hard shell of the protector 2 is preferably made of a thermoplastic elastomer, in particular polyamide. The thermoplastic elastomer is highly heat-stabilized and has a melting temperature selected from a range having a lower limit of 200 ° C and an upper limit of 350 ° C. In one development of the invention, the thermoplastic elastomer may be glass fiber reinforced, carbon fiber reinforced, mineral filled and / or glass ball filled.

Preferably, the thermoplastic elastomer of the hard shell of the protector 2 is carbon fiber reinforced, whereby an even higher temperature resistance than by the elastomer itself can be achieved and also a greater hardness of the protector 2 can be achieved.

The material of the hard shell of the protector 2 has an impact resistance selected from a range having a lower limit of 3 kJ / m ² and an upper limit of 60 kJ / m ² . Further, the material of the hard shell of the protector 2 has a breaking stress selected from a range having a lower limit of 40 MPa and an upper limit of 230 MPa, or the density a value selected from a range having a lower limit of 1 g / cm ³ and an upper limit of 1.6 g / cm ³ at room temperature. The impact resistance is determined in accordance with DIN EN ISO 179 / 1eA. The breaking stress is determined according to the standard DIN EN ISO 527-1 / 2.

The protector 2 according to the invention is also able to prevent heating of the material of the glove according to the invention at a contact temperature of at least 250 ° C for a period of at least 10 sec.

The hard shell of the protector 2 is arranged in the region of the back of the hand. There, preferably in the area of the finger base joints or in the area of the finger end joints. Furthermore, the protector 2 can also be provided in the region of the shaft 6 or in the area of the palm of the hand, such be arranged in the region of the ulnar nerve or thumb base joint, and / or hand edge.

• (aromatische) Polyamide mit hohem Schmelzpunkt, insbesondere Meta- oder Para-Aramide, wie z.B. Kermel, Nomex, Kevlar, Technora, PBI, Apyeil, Teijinconex oder Twaron,
• kristalline Polymere, insbesondere PBO-Fasern, wie z.B. Zylon oder Vectran,
• Viskose FR, z.B. Lenzing FR,
• Glasfaser,
• flammhemmend ausgerüstetes Leder oder entsprechende Textilien bzw. flexible Trägermaterialien, z.B. mit Beschichtungen aus Silikon, Polyurethan oder Silikon-Carbon.

The upper material as well as the lining or insulating material of the glove may for example consist of the following basic materials or mixtures thereof

• high melting point (aromatic) polyamides, especially meta or para aramids such as Kermel, Nomex, Kevlar, Technora, PBI, Apyeil, Teijinconex or Twaron,
• crystalline polymers, especially PBO fibers such as Zylon or Vectran,
• Viscose FR, eg Lenzing FR,
• Glass fiber,
• Flame-retardant leather or corresponding textiles or flexible support materials, eg with Coatings made of silicone, polyurethane or silicone-carbon.

In Fig. 2a and 2b in each case a section AA through a protector according to the invention in the region of one of the finger end joints 5 is shown. Fig. 2a shows a protector 2 of a hard shell, wherein at least that the back of the hand facing side 7 is anatomically shaped, and those facing away from the back of the hand 8 of the protector 2 is also shown parallel to the anatomical training.

In Fig. 2b an alternative embodiment of the protector 2 according to the invention is shown, wherein only that of the back of the hand facing side 7 is anatomically shaped and those remote from the back of the hand side 8 of the protector 2 may have any shape, for example, the simplest and most cost-effective to produce and easiest can be molded during manufacture.

In Fig. 3a an inventive protector 2 in the area of the finger base joints 4 is shown. Here, the protector 2 is formed according to the anatomy of the finger base joints 4, each with four bulges corresponding to the four fingers of the human hand. Both the side 7 facing the back of the hand and the side 8 of the protector 2 facing away from the back of the hand are anatomically formed.

In Fig. 3b an alternative embodiment of the protector 2 according to the invention in the area of the finger base joints 4 is shown, wherein only those the The back of the hand 7 is anatomically formed and those facing away from the back of the hand 8 according to a simple manufacturing variant, for example, may be straight.

In an alternative embodiment, not shown, the at least one protector 2 can also be formed from a plurality of mutually arranged elements, which are at least partially concave and / or convex curved formed. The elements may be flush with each other or only partially, e.g. ladder-shaped, be connected. In the case of a ladder-shaped connection, it is possible for a filling element to be arranged in the gap between the baffles, which likewise has the heat-resistant properties of the glove according to the invention. These filling elements can be connected individually or also with each other. The formation of such protectors is known, for example, when using goalkeeper gloves.

The arrangement of the protector 2 can take place either directly on the outside of the upper material of the back of the hand 3 or on the inside of the hand, or the at least one protector 2 according to the invention can be covered in the region of the back of the hand 3 or the inside of the hand with at least one layer of the outer material or a stocking material be. In the direction of the hand, the protector can at least by a layer of feed or insert such. As a semipermeable membrane, be covered. In alternative embodiments, it is also possible to integrate the protector 2 according to the invention between a plurality of layers of the upper material or lining of the back of the hand 3 or the inside of the hand.

The protector 2 may be connected to the glove 1, for example by sewing and / or gluing. Furthermore, the protector 2 can also not be connected, for example, directly to the glove 1 by a seam, but can be sewn off so that it is held at a specific position in the area of the back of the hand 3 of the glove 1 or in a recess, in particular a pocket-like recess , can be inserted or inserted. Furthermore, the protector 2 can also be connected to the glove 1 via brackets, push buttons or the like.

In one embodiment of the invention, it is possible, in addition to the protectors 2, which on the one hand have the high temperature stability and on the other hand withstand high mechanical stresses, other components of a firefighter glove, such as carabiners and / or eyelets or the like of a thermoplastic elastomer, in particular polyamide to manufacture, these carabiners and / or eyelets or the like having a temperature resistance at 200 ° C for at least 9 seconds. The eyelets may be formed, for example in the form of D or O-rings.

Another advantage proves that the Nachbrennzeit the upper of the glove 1 and the protector 2 of the glove 1 less or max. 2 sec. Possible materials for producing the protector 2 according to the invention are, as already mentioned, thermoplastic elastomers, such as, for example, polyamides, as sold under the trade names Ultramid® by BASF, the name Bergamid® by Poly-One and the name Alcom® by Albis Plastic GmbH become.

The hard shell composition of the protector 2 can also be made from a mixture of several commercially available polyamides, such as Alcom® and Ultramid®, e.g. made of 5% Alcom and 95% Ultramid, or other components that increase the temperature resistance.

The heat-resistant gloves according to the invention, in particular fire fighter gloves, with the protectors 2 correspond to both the European fire service standard EN 659 and the Australian fire service standard AS 2161.10 and the American fire service standard NFPA 1971. Furthermore, the gloves 1 according to the invention also correspond to the rescue standard NFPA 1951 and other worldwide known Standards, such as the EN 407 (thermal risks), the standard against heat and flames, etc.

The gloves 1 according to the invention therefore correspond to the requirements of a firefighter glove, the afterburning time being less than 2 sec. And the afterglow time being less than 5 sec. For a firing time of between 3 and 15 sec. The distance between the tip of the flame and the lowest point of the flamed glove is between 10 and 30 mm. The glove can be flamed vertically or horizontally. The material of the glove used in this case neither drips nor melts during the flame treatment and / or the flamed spot has no breakthrough.

Further, the time of temperature rise upon contact of flames with the glove of 24 ° C at the unflamed point is less than 13 seconds.

At a heat flux density of 40 kW / m ² , the time for the temperature rise of 24 ° C at the non-combusted point from the material extracted from the back of the hand is not less than 11 sec. At a contact temperature of at least 250 ° C, the material of the palm structure keeps the heat for a period of at least 10 sec. before combustion of the 2nd degree arises. In addition, the feed material must not melt, drip or ignite at a minimum temperature of 180 ° C. The shrinkage of the glove is at a minimum temperature of 180 ° C for a period of 5 min not more than 5%.

In a further development, the heat-resistant glove in the area of the protectors 2 may comprise damping or spring elements which, on the one hand, increase the impact effect of the protectors 2 and, on the other hand, also increase the force generated by the e.g. Bursting a door acts on the carrier, reduced. The damping elements may be used as springs, such as springs. Be helical spring / coil spring, spiral spring, ring spring, elastomeric spring or elastomeric cushion be formed. Preferably, the damping or spring elements are arranged in the region of the protectors 2 in the area of the finger base joints 4 on the back of the hand 3. Of course, the damping or spring element can also be arranged in the region of the hand edge, palm of the hand, finger end joints 5 and shaft 6. The damping or spring elements can also be covered by the upper, a cover plate and / or another protector 2.

The back of the hand or the inside of the hand / palm comprises in the case of the glove described according to the invention the area from the fingertips or the tip of the thumb to the end of the shaft. Therefore, the glove 1 according to the invention can be used with the protectors 2 both for use in the rescue area as well as for use in the fire department.

The embodiments show possible embodiments of the glove 1, wherein it should be noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but also various combinations of the individual embodiments are mutually possible and this variation possibility due to the teaching of technical Acting by objective invention in the skill of those working in this technical field is the expert.

So are all conceivable embodiments, which are possible by combinations of individual details of the illustrated and described embodiment variant, includes the scope of protection.

In the Fig. 3a and 3b are further and possibly independent embodiments of the / the protector 2 shown, again for like parts, the same reference numerals or component names as in the preceding Fig. 1 . 2a and 2b be used. In order to avoid unnecessary repetition, the detailed description in the previous ones will be used Fig. 1 referred or referred.

For the sake of order, it should finally be pointed out that for a better understanding of the construction of the glove 1 and protector 2, these or their components are partially uneven and / or enlarged and / or reduced were presented.

The task underlying the independent inventive solutions can be taken from the description.

Above all, the individual in the Fig. 2a, 2b or 3a, 3b shown embodiments form the subject of independent solutions according to the invention. The relevant objects and solutions according to the invention can be found in the detailed descriptions of these figures.

Claims (15)

1. Heat-resistant glove (1), in particular a fire department glove, with at least one protector (2) and, in particular, with a fire-resistant outer material, the at least one protector (2) being arranged in the region of the back of the hand, the inner surface of the hand and/or the edge of the hand and having a convex or concave curvature and a temperature resistance at at least 200°C for at least 9 seconds,
   characterized in that the protector (2) is formed as a hard shell.
2. Heat-resistant glove (1) according to Claim 1, characterized in that the outer material and the protector (2) are formed and arranged such that heat is shielded not only by the fire-resistant outer material of the fire department glove but also by the protector itself.
3. Heat-resistant glove (1) according to Claim 1 or 2, characterized in that the protector (2) is arranged on the outer side of the outer material.
4. Heat-resistant glove (1) according to Claim 1 or 2, characterized in that the back side of the hand or the inner surface of the hand comprises at least one layer of the outer material and at least one layer of lining, and the protector (2) is arranged between the outer material and the lining or is integrated in the outer material.
5. Heat-resistant glove (1) according to anyone of the preceding claims, characterized in that the hard shell comprises a thermoplastic elastomer, in particular polyamide.
6. Heat-resistant glove (1) according to Claim 5, characterized in that the thermoplastic elastomer - is high-temperature stabilized and has a melting temperature selected from a range with a lower limit of 250°C and an upper limit of 350°C, and/or is glass-fiber-reinforced, carbon-fiber-reinforced, mineral-filled and/or glass-bead-filled.
7. Heat-resistant glove (1) according to any one of the preceding claims, characterized in that the material of the hard shell has at least one of the following properties

   - a notched impact strength (in accordance with DIN EN ISO 179/1eA) selected from a range with a lower limit of 3 KJ/m² and an upper limit of 60 KJ/m²;

   - a fracture stress ( in accordance with DIN EN ISO 527-1/2) selected from a range with a lower limit of 40 MPa and an upper limit of 230 MPa;

   - a density selected from a range with a lower limit of 1.00 g/cm³ and an upper limit of 1.6 g/cm³.
8. Heat-resistant glove (1) according to any one of the preceding claims, characterized in that the hard shell is anatomically shaped, at least on that side (7) that is facing the back side of the hand or the inner surface of the hand.
9. Heat-resistant glove (1) according to any one of the preceding claims, characterized in that the protector (2) withstands heating of the material of the outer and inner hand at a contact temperature of at least 250°C for a time period of at least 10 seconds.
10. Heat-resistant glove (1) according to any one of the preceding claims, characterized in that the protector is arranged in the region of the back of the hand (3), the base joints of the fingers (4), the end joints of the fingers (5) and/or the shaft (6) of the back side of the hand and/or in the region of the ulnar nerve or the base joint of the thumb of the inner surface of the hand.
11. Heat-resistant glove (1) according to any one of the preceding claims, characterized in that the protector (2) is connected to the glove (1), in particular by sewing, adhesive bonding and/or insertion.
12. Heat-resistant glove (1) according to any one of the preceding claims, characterized in that a damping or resilient element is arranged in the region of the at least one protector (2), preferably in the region of the base joints of the fingers (4), the edge of the hand and/or the inner surface of the hand, and in particular is covered by a further protector (2) or a covering.
13. Heat-resistant glove (1) according to Claim 12, characterized in that the damping or resilient element is formed as a spring, in particular a helical spring, or as a pad, in particular comprising an elastomer.
14. Heat-resistant glove (1) according to any one of the preceding claims, characterized in that at least one carabiner and/or eyelet comprising a thermoplastic elastomer, in particular polyamide, is/are arranged on the glove (1) and the at least one carabiner and/or eyelet has/have a temperature resistance of at least 200°C for at least 9 seconds.
15. Heat-resistant glove (1) according to any one of the preceding claims, characterized in that the burning time of the outer material and the protector (2) is less than 2 seconds.

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