EP3323306A1 - Insulating protective glove for working under electrical voltage - Google Patents

Abstract

An insulating protective glove (1) for working under electrical tension, which is designed as a finger glove with a glove body (2) and glove fingers (3) and a front-side palm, a back glove back (4) and at one end a cuff opening (5) for insertion the hand in the finger glove, wherein the protective glove (1) has at least two layers and an inner lining (12) which comes into contact with a user's hand during use, and an outer casing (10) surrounding the inner lining (12) on the outer side facing away from the outer, and wherein the outer casing (10) and the inner lining (12) are constructed in such a way that together they meet the minimum requirements of European Standard 659 for fire-fighter protective gloves. It is characterized in that the inner lining (12) comprises a tension-insulating electrician's glove, which in itself satisfies the minimum requirements of European Standard 60903 for insulating protective gloves for working under electrical tension, that the inner lining (12) with the outer shell (10) via a circumferential, self-adhesive seam (11) is connected at the height of the glove-cuff, and that the closed adhesive seam (11) is designed electrically insulating for voltages ‰ ¥ 1000V. Thus, a protective glove can be provided, which protects both against thermal and electrical hazards standard.

Description

The invention relates to an insulating protective glove for working under electrical tension, which is designed as a finger glove with a glove body and glove fingers and a front side palm, a back glove back and at one end has a cuff opening for insertion of the hand in the finger glove, the glove at least two layers is executed and has an in use coming into contact with a user's hand inner lining and a surrounding the inner lining on the hand-facing outside outer shell,
and wherein the outer shell and the inner lining are constructed so as to collectively meet the minimum requirements of European Standard 659 for fire-fighter protective gloves.

Such a protective glove is from the DE 20 2009 009 752 U1 known.

Intensive efforts are currently being made to increase the use of electrical energy instead of fossil fuels. In recent years, for example, photovoltaic systems, for example on building roofs, have increasingly been set up. In addition, individual mobility will be made possible in the future by electric drive systems, for example by electric vehicles.

So far, however, little attention has been paid to the fact that such increased use of electrical energy also involves significant potential dangers.

These potential dangers are already increasingly evident in the face of numerous, worldwide fire events due to non-functioning or poorly functioning accumulators, for example in smartphones or notebooks.

A particularly high risk is seen in fires in the field of electric vehicles, for example in hybrid or fully electric vehicles (see, for example, "E-Mobile Brand in the USA"; https://www.welt.de/motor/news/). article120704501 / E-Mobile-Brand-in-the-USA.html (accessed on 09.11.2016)).

Particularly problematic in the fire of such an electric vehicle is that when extinguishing not only significant hazards from the fire and the fire itself and possibly possible Selbstentzündende elements such as lithium-ion batteries, but in addition also risks due to propagating high voltages or high currents due to the vehicle installed high-performance electricity or accumulators must be controlled or it is important to prevent this effectively.

So far, firefighters are only partially prepared for the treatment of such hazards. For example, the above mentioned article reports that the firefighters fighting a fire of an electric vehicle had to maintain or maintain a considerable distance from the electric vehicle, which of course considerably limits the effectiveness of the firefighting or reduces the positive effects of the firefighting measures known to those skilled in the art, if not impossible.

In order to deal with such extended dangers, it is therefore particularly necessary to wear protective gloves which are not only designed as self-firefighter gloves or as electrician's gloves, but can withstand both thermal and mechanical and electrical hazards.

Basically known for a long time special protective gloves, especially firefighter gloves, to protect against thermal and mechanical hazards, such as the firefighters protective gloves models "Fire Fighter Premium" or "Evolution", each manufactured by Seiz Technical Gloves GmbH D-72555 Metzingen , Also known are protective gloves, especially electrician gloves, which serve to protect against electrical hazards, such as the model "Electrosoft" offered by the company Seiz Technical Gloves GmbH.

From the cited above DE 20 2009 009 752 U1 is already a combined protective glove known in particular as Firefighter's glove can be formed, and in which an inner layer of electrically insulating material is formed.

However, the problem remains that such a glove, which may offer protection against the dangers mentioned, in particular the respective individual standards, in particular the requirements of EN 695 and also EN 60903, has to be strictly met in order to be used in practice to be allowed to.

In particular, requirements for the protection against electricity but so far only extremely limited in combination with requirements for protection against thermal and mechanical hazards met, inter alia because high technical standards are to be met both in wet and in dry condition according to standards, with such a Protective glove, which provides sufficient protection against electrical currents and high voltages, at the same time heat or fire resistant should be formed.

While it may seem obvious to provide such a protective glove in which several layers are combined with different, norm-filling protective properties. However, this procedure has not yet led to the desired success, as still additional additional detail problems would have to be solved.

On the one hand, on the one hand, the layers would have to be connected to one another, at least temporarily, inseparably. For example, you can not just use a special outer shell that provides mechanical protection per se, and then additionally, for example, if necessary, undergo a lining to achieve additional thermal protection. From this This would potentially result in extremely undesirable other accident hazards.

So far, it has not yet been possible to provide a protective glove against thermal and / or mechanical hazards in addition to a further shell which meets the comparatively strict regulations for electrician's gloves. So far, there is the risk that - especially in the wet state, as mandatory in the test regulations of the standard - reaches the interior of the protective glove over a sewn connection of an outer shell with an inner shell or with an electrician glove electricity to an inadmissible extent.

Object of the present invention is in contrast to provide the simplest and simplest technical means inexpensive and inexpensive a protective glove, with the minimum requirements of the relevant standards for protection against thermal hazards, in particular the European Standard 659 for fire-protective gloves, as well as those for protection against electrical dangers, in particular the European standard 60903, can be safely fulfilled.

According to the invention this - in practice not so straightforward task - solved in an equally surprisingly simple and effective manner by an insulating protective glove for working under electrical tension, which is designed as a finger glove with a glove body and glove fingers and a front-side palm, a back glove back and on one end has a cuff opening for the introduction of the hand in the finger glove, wherein the protective glove is designed at least two layers and one in use with a user's hand Coming into contact lining and a surrounding the inner lining on the hand-facing outside outer shell,
and wherein the outer shell and the inner lining are constructed so as to collectively meet the minimum requirements of European Standard 659 for fire-fighter protective gloves, wherein the protective glove is characterized in that the inner lining comprises a tension-insulating electrician glove, which already meets the minimum requirements of European standard 60903 for insulating protective gloves for working under electrical tension is sufficient that the inner lining is connected to the outer shell by means of a circumferential, self-adhesive seam at the level of the glove cuff, and that the closed adhesive seam is electrically insulating also for voltages ≥ 1000V is.

In this case, the voltage is to be understood as the test voltage with which, according to the standard, a respective class is to be correspondingly tested. For example, the (test) voltage for the lowest class 00 of EN 60903 is at least 2.500V and is thus ≥1000V.

According to the invention, a protective glove can be provided, which in itself already fulfills the European standard 659 for fire-fighting protective gloves. In this protective glove by means of the inner lining a tension-insulating electrician glove is integrated, which meets the minimum requirements of the European standard 60903.

The inner lining is connected via a self-contained, electrically insulating adhesive seam with the outer shell. By using such a special adhesive seam, a perforation of the electrician glove, as otherwise in a conventional sewn seam would be inevitable, avoided. Thus, the protective glove of the invention can meet all the standards mentioned at the same time.

By still firm, at least temporarily unsolvable connection of the individual parts with each other, the accident risks described above can also be avoided.

By placing the adhesive seam at the level of the glove cuff can further be ensured that at any time the protection against electrical hazards extends at least as far over the body surface of the user's hand as well as the-formed essentially by the outer shell - Protection against thermal hazards acts. In particular, slippage of the electrician's glove is avoided, whereby, for example, parts of the back of the hand might still be protected from thermal hazards, but not from electricity.

A particularly advantageous class of embodiments is characterized in that the outer shell is constructed in one layer of heat-insulating, flame-resistant material, preferably aramid and / or para-aramid, and meets the minimum requirements of European Standard 407 for protective gloves against thermal risks.

Thus, even the outer shell can ensure adequate thermal protection. Layers of aramid, meta-aramid, and / or para-aramid also have the advantage of protecting against mechanical hazards, ie, for example, to provide cut and / or puncture protection. Also, these layers have a low thermal conductivity.

It is understood that other, in particular textile, intermediate layers between outer shell and inner lining, for example of para-aramid and / or aramid, may be provided.

It may also be provided that the outer shell, in particular the front-side palm of the hand, is constructed, preferably coated, of an abrasion-resistant, cut-resistant and puncture-resistant material, for example with silicone or silicone-carbon or other flame-resistant plastics, and at least meets the requirements of the European Standard 388 for protective gloves against mechanical risks is sufficient.

While a conventional electrician's glove offers no or little protection against mechanical hazards, a protective glove can be provided which provides protection against thermal, mechanical and electrical hazards. Thus, completely new applications for protective gloves can be developed. Likewise, the user is satisfied with a single type of protective gloves to ward off the dangers mentioned. An interim change of the protective glove during use is eliminated.

Such a multi-layer construction of the protective glove can also ensure that the electrician's glove or the inner lining is also protected from mechanical influences and / or wear, which can extend its durability or lifetime.

In a further embodiment, the outer shell may also comprise a multi-layered fire department protective glove which at least meets the minimum requirements of European Standard 659 for fire-fighter protective gloves.

It is also particularly advantageous if the peripheral, self-contained, electrically insulating adhesive seam connecting the inner lining with the outer shell extends around the edge of the cuff opening.

Thus, the adhesive seam on the one hand be protected away from the main action area, in particular the handle portion of the protective glove, be arranged. Also, this can be a protective glove all-encompassing electricity protection guaranteed.

Alternatively, the circumferential, self-contained, electrically insulating adhesive seam connecting the inner lining with the outer shell can extend with distance from the cuff opening in the direction of the glove fingers between the hand-facing inner side of the outer shell and the outer side of the inner lining facing away from the hand.

It is particularly advantageous if an electrically insulating adhesive layer is also present at the fingertips of the glove fingers between the hand-facing inner side of the outer shell and the outer side of the inner lining facing away from the hand. Thus, it can be avoided that the inner lining of the outer shell (unintentionally) pulled out and thus made unusable.

The circulating, self-contained, electrically insulating adhesive seam and / or an electrically insulating adhesive layer may be made of one or more electrically non-conductive adhesives, in particular of organic or inorganic adhesives, preferably based on silicone.

In particular, the adhesives may be one-component, two-component or multi-component adhesives.

A particular advantage is obtained when the circumferential, self-contained, electrically insulating adhesive seam and / or an electrically insulating adhesive layer have a layer thickness ≥ 0.5 mm. As a result, at the same time an advantageous distance between the outer shell and inner lining can be ensured.

In one class of embodiments, the circumferential, self-contained, electrically insulating adhesive seam and / or an electrically insulating adhesive layer inextricably connects the outer shell with the inner lining. Thus, a sufficient security or comprehensive security properties of the two cases can be ensured for the user.

In an alternative class of embodiments, on the other hand, it is provided that the encircling, self-contained, electrically insulating adhesive seam and / or an electrically insulating adhesive layer are such that they temporarily connect the outer shell inseparably with the inner lining, so that the inner lining according to a predetermined expiration date, preferably after the prescribed expiration date of 2 years for electrician's gloves, detached from the outer shell and can be pulled out of this. As a result, the protective glove can be produced and used in an especially economically attractive manner. In particular, the outer shell can also be reused or reused, even if due to legal requirements, for example
Inner lining or the electrician glove is replaced.

It is particularly preferred if the adhesive seam and / or adhesive layer has at least one thermally activatable adhesive. Then, the separation of the two layers from each other by heating or thermal activation of the adhesive take place. It should be noted that the activation temperature may be preferably selected in a range that deviates from the operating temperature, in particular the internal use temperature, of the protective glove, in particular the higher range.

For example, for the production of the first thermally activated adhesive can be applied to the inner lining according to the adhesive seam or adhesive seams to be formed. Then the inner lining can be inserted into the outer shell. By compressing and / or - in particular if this requires the thermally activated adhesive - by heating the inner lining and / or the outer shell, both parts can be joined together. For example, to replace the inner lining, it is then sufficient to activate the adhesive, in particular by heating, thereby releasing the two parts from each other again. Subsequently, for example, a new electrician glove can be assembled as inner lining with the existing outer shell analogous to the previous procedure.

A particularly simple production of the protective glove or its inner lining also results when the inner lining is seamlessly dipped or sprayed.

The outer shell can be seamlessly knitted from the fingertips of the glove fingers to the cuff end of the insertion opening be. As a result, an advantageous mobility as well as a favorable tactile capability of the protective glove can be achieved. Due to the stretchability of the knitted textile, the outer shell can also optimally adapt to the inner lining. Also, there are no disturbing seams on the outer shell.

Further features and advantages of the invention will become apparent from the following detailed description of an embodiment of the invention with reference to the figure of the drawing, which shows details essential to the invention, and from the claims. The individual features may be implemented individually for themselves or for a plurality of combinations in variants of the invention.

In the schematic drawing an embodiment of the invention is shown, which will be explained in more detail in the following description.

The -onezige-figure ( Fig. 1 ) shows an embodiment of the protective glove according to the invention.

Evident is an insulating protective glove 1 for working under electrical tension, which is designed as a finger glove with a glove body 2 and glove fingers 3 and a front side palm (not shown), a back glove back 4 and at one end a cuff opening 5 for insertion of the hand in having the finger glove.

The protective glove 1 is executed at least two layers. As in particular the enlarged view I in the upper part of FIG. 1 can be seen, the protective glove has an outer shell 10, an adhesive seam 11 and a lining 12 .

It can be seen from the enlarged illustration I in conjunction with the representation of the cuff opening 5 that the inner lining 12 comes into contact with its user's hand when a user uses the protective glove. The outer shell 10 surrounds the inner lining 12 on its hand facing away from the outside.

In this case, the outer shell 10 itself is usually constructed in multiple layers. In particular, it is designed so that it already meets the minimum requirements of European Standard 659 as a fire-fighting protective glove, in particular the European Standard 659: 2008, so that even the protective glove 1 as a whole completely complies with this standard.

The outer shell 10 is reinforced in the area of the palm by means of an aramid textile in order to achieve a high abrasion and cut resistance. In particular, the outer shell also meets the requirements of European Standard 388 with respect to mechanical risks. In the area of the glove back 4, the outer shell 10 is formed from the material NOMEX® and has, in particular in an ankle area of the protective glove 1 additional heat conduction-inhibiting elements.

The inner lining 12 is designed as a tension-insulating electrician glove made of latex-containing material, which already meets the minimum requirements of European Standard 60903 for insulating protective gloves for working under electrical tension. By making the inner lining 12 and the electrician glove By dipping the inner lining 12 is always formed basically seamless.

Of the FIG. 1 It can also be seen that the adhesive seam 11 completely surrounds the edge of the cuff opening 5 and is closed in itself. The adhesive seam 11 is formed by a thermally activatable and at the same time electrically non-conductive adhesive. It usually has a layer thickness of about 1mm, so that it can withstand test voltages of at least 2,500V.

In the area of the glove fingers 3, further adhesive seams (not specifically shown in the present drawing) are formed in an analogous manner between the outer shell 10 and the inner lining 12, thereby avoiding inadvertent slippage and / or removal of the inner lining 12 in the event of a possible withdrawal of the user's hand.

Claims (15)

Insulating protective glove (1) for working under electrical tension, which is designed as a finger glove with a glove body (2) and glove fingers (3) and a front palm, a back glove back (4) and at one end a cuff opening (5) for introducing the Hand in the glove, wherein the protective glove (1) is executed at least two layers and an in use with a user's hand coming into contact inner lining (12) and the inner lining (12) on the hand-facing outside surrounding outer shell (10) having,
and wherein the outer shell (10) and the inner liner (12) are constructed so as to collectively meet the minimum requirements of European Standard 659 for firefighter protective gloves,
characterized,
that the inner lining (12) comprises a tension-insulating electrician's glove which in itself satisfies the minimum requirements of European Standard 60903 for insulating protective gloves for working under electrical tension,
that the lining (12) with the outer casing (10) via a peripheral, self-adhesive seam (11) is connected at the height of the glove Stulpens,
and that the closed adhesive seam (11) is designed to be electrically insulating even for voltages ≥ 1000V. Protective glove according to claim 1, characterized in that the outer shell (10) is constructed in one layer of heat-insulating, flame-resistant material, preferably of aramid and / or para-aramid, and meets the minimum requirements of European Standard 407 for protective gloves against thermal risks. Protective glove according to claim 2, characterized in that the outer shell (10), in particular the front side palm, constructed of an abrasion resistant, cut resistant and puncture resistant material, preferably coated, for example with silicone or silicone carbon or other flameproof plastics, and already for themselves at least meets the requirements of European Standard 388 for protective gloves against mechanical risks. Protective glove according to claim 1, characterized in that the outer shell (10) comprises a multi-layer constructed fire department protective glove, which already meets at least the minimum requirements of European Standard 659 for firefighters protective gloves. Protective glove according to one of claims 1 to 4, characterized in that the circumferential, self-contained, electrically insulating adhesive seam (11) connecting the inner lining (12) to the outer shell (10) extends around the edge of the cuff opening (5). Protective glove according to one of claims 1 to 4, characterized in that the inner lining (12) with the outer shell (10) connecting circumferential, self-contained, electrically insulating adhesive seam (11) at a distance from the cuff opening (5) in the direction of the glove fingers (3) out between the hand-facing inside of the outer shell (10) and the hand-facing outside of the inner lining (12). Protective glove according to one of the preceding claims, characterized in that between the hand-facing inside of the outer shell (10) and the hand-facing outer side of the inner lining (12) also at the fingertips of the glove fingers (3) an electrically insulating adhesive layer is present. Protective glove according to one of the preceding claims, characterized in that the encircling, self-contained, electrically insulating adhesive seam (11) and / or an electrically insulating adhesive layer are made of one or more electrically non-conductive adhesives, in particular of organic or inorganic adhesives, preferably silicone-based. Protective glove according to claim 8, characterized in that the adhesives are one-component, two-component or multi-component adhesives. Protective glove according to one of the preceding claims, characterized in that the encircling, self-contained, electrically insulating adhesive seam (11) and / or an electrically insulating adhesive layer have a layer thickness ≥ 0.5 mm. Protective glove according to one of claims 1 to 10, characterized in that the circumferential, self-contained, electrically insulating adhesive seam (11) and / or an electrically insulating adhesive layer, the outer shell (10) permanently connected to the inner lining (12). Protective glove according to one of claims 1 to 10, characterized in that the encircling, self-contained, electrically insulating adhesive seam (11) and / or an electrically insulating adhesive layer are such that they the outer shell (10) only temporarily inseparable from the inner lining (12), so that the inner liner (12) can be released from and pulled out of the outer shell (10) after a predetermined expiration date, preferably after the prescribed 2 year electrician gloves expiration date. Protective glove according to claim 12, characterized in that the adhesive seam (11) and / or adhesive layer has at least one thermally activatable adhesive. Protective glove according to one of the preceding claims, characterized in that the inner lining (12) is seamlessly dipped or sprayed. Protective glove according to one of the preceding claims, characterized in that the outer shell (10) is knitted seamlessly from the fingertips of the glove fingers (3) to the cuff end of the insertion opening (5).

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