DE202020102269U1 - Clamp bracket body for a protective mask - Google Patents

Abstract

Clamping bracket body (10a, 10b) for a protective mask (200), in particular for an oral-nasal protective mask, with
- A fixing clamp (12a, 12b), which has a clamping area for fixing filter material (202), and
- A fastening bracket (14a, 14b) which is connected to the fixing clamp (12a, 12b) and is set up to be attached to the head of a user and / or to a fastening bracket (14a, 14b) of a further clamping bracket body (10a, 10b) characterized in that the fixing clamp (12a, 12b) is set up to be opened and closed non-destructively, filter material (202) being insertable into and removed from the clamping region when the fixing clamp (12a, 12b) is open and in a closed state of the fixing clamp (12a, 12b) filter material (202) inserted in the clamping area is clamped in the clamping area.

Description

The invention relates to a clamping bracket body for a protective mask, in particular for an oral-nasal protective mask, with a fixing clamp, which has a clamping area for fixing filter material, and a fixing bracket, which is connected to the fixing clamp and is set up on the head of a user and / or to be fastened to a fastening bracket of a further clamping bracket body.

The invention further relates to a pair of clamping brackets for a protective mask, in particular for a mouth-nose protective mask, with a first clamping bracket body and a second clamping bracket body.

Furthermore, the invention relates to a protective mask, in particular a mouth-nose protective mask, with a first clamping bracket body, which comprises a fixing clamp having a clamping area, a second clamping bracket body, which comprises a fixing clip having a clamping area, and a filter material, which in the clamping areas of the Fixing clamps of the clamp bracket body is fixed and set up to cover the mouth and / or the nose of a user when using the protective mask.

Generic protective masks are used to reduce the transmission of pathogens. Wearing appropriate protective masks reduces the likelihood of droplet infection because larger liquid particles do not get into the mucous membranes and other people's airways when breathing, speaking, sneezing or coughing. Since the spread of germs is reduced in this way, wearing appropriate protective masks is considered an effective infection protection measure.

The filter material of corresponding protective masks is usually held in the mouth and / or nose area of the user via fastening brackets or fixing straps. The mounting brackets or fixation straps can be fixed on the back of the head or behind the ears of the user, for example.

The protective masks known in the prior art are either intended for single use or, because of their cleaning suitability, allow multiple use. Protective masks for single use require a considerable amount of raw materials, so that if an epidemic or pandemic breaks out, a resulting shortage of raw materials cannot guarantee that a sufficient amount of protective masks can be manufactured over a longer period of time. Protective masks for multiple use regularly require complex cleaning processes, which often cannot be carried out in private households. In addition, protective masks for multiple use regularly have comparatively complex constructions, so that high production costs result.

The object on which the invention is based is therefore to at least partially overcome the disadvantages of protective masks known in the prior art.

The object is achieved by a clamping bracket body of the type mentioned at the outset, the fixing clamp of the clamping bracket body according to the invention being set up to be opened and closed non-destructively, filter material being able to be inserted into and removed from the clamping area and in one in an open state of the fixing clip closed state of the fixing clamp in the clamping area inserted filter material is clamped in the clamping area.

By means of the clamping bracket body according to the invention, a protective mask can be provided, the head fastening of which allows multiple use, the filter material being able to be replaced after a certain period of use or after contamination. Furthermore, the invention allows different filter materials to be clamped in, so that the user can adapt the protective properties of his protective mask individually and as required by using a suitable filter material.

The fixing clamp of the clamping bracket body can preferably be opened manually and without tools, so that the user can insert, remove or replace the filter material at any time. The fixing clamp is preferably set up to fix the filter material in the clamping region in a non-positive and / or positive manner. The mounting bracket is preferably elastically deformable and / or flexible, so that the shape of the mounting bracket can adapt to the shape of the user's head. The fixing clamp is preferably set up to clamp filter materials designed as filter materials. The fixing clamp also allows the clamping of single-layer and multi-layer filter material.

In a preferred embodiment of the clamping bracket body according to the invention, the fixing clamp and the fastening bracket are integral components of a one-piece plastic part. The clamping bracket body is preferably a one-piece plastic injection molded part. The clamping bracket body can for example be made of polypropylene (PP), polycarbonate (PC), polystyrene (PS) and / or polyamide (PA). In an alternative embodiment, the clamping bracket body can also be a multi-part body.

In a further preferred embodiment of the clamping bracket body according to the invention, the fixing clamp has a clamping body which can be pivoted about a pivot axis and which can be pivoted between an open and a closed position. The clamping body is preferably in the open position when the fixing clamp is open. Furthermore, the clamping body is preferably in the closed position in the closed state of the fixing clamp. The clamping body preferably has a swivel angle of at least 90 degrees, in particular of at least 135 degrees. A clamping bracket body is particularly preferred, in which the clamping body of the fixing clamp has a pivoting angle of at least 180 degrees. The swivel angle of the clamp body describes the angular range between the closed position and the maximum open position of the clamp body. The clamping area of the fixing clamp is thus generously released in the open position of the clamping body, so that the insertion and removal of filter material is simplified and accelerated. The manageability and the ease of use of the clamp body is improved with increasing pivoting angle.

In a further development of the clamping bracket body according to the invention, the fixing clamp has one or more elastic holding members which are set up to hold the clamping body in the closed position via a snap connection. The fixing clamp preferably has two opposite elastic holding members, which are designed to hold the clamping body in the closed position at opposite end regions via a snap connection. The clamping body can be released via an elastic deformation of the one or more holding members. The holding members are preferably snap hooks. The deformation of the holding members requires a comparatively low expenditure of force, so that the user can manually release the clamping body by exerting a release force on the one or more holding members.

In a further preferred embodiment of the clamping bracket body according to the invention, the fixing clamp is designed as an elongated part which extends along a longitudinal axis, the pivot axis of the clamping body running parallel or at an angle of at most 20 degrees, preferably at most 10 degrees, to the longitudinal axis of the fixing clamp. Because the pivot axis of the clamping body runs parallel or at an acute angle to the longitudinal axis of the fixing clamp, the fixing clamp requires comparatively little space to be opened and closed. In addition, such a pivot axis course also allows a uniform application of a clamping force to the filter material. Accidental tearing out of the filter material from the fixing clamp can thus be effectively avoided even in the event of a temporary overload. In particular in areas of application in which the protective mask is frequently put on and taken off, the uniform application of clamping force to the filter material leads to increased protection against infection.

In addition, a clamping bracket body according to the invention is advantageous in which the clamping body is connected to a base body of the fixing clamp via one or more hinges. The clamping body, the one or more hinges and the base body of the fixing clamp are preferably integral components of a one-piece plastic part. If the fixing clamp has several hinges, the reliability in the event of damage to the hinge is increased. If one of the hinges is damaged during the use of the protective mask, the pivoting ability of the clamping body is maintained via one or more additional hinges. The clamping bracket body can thus continue to be used with little or no functional impairment even after damage to a hinge.

In a further preferred embodiment of the clamping bracket body according to the invention, the one or more hinges are designed as film hinges. The hinges are therefore a thin-walled connection between the pivotable clamp body and the base body of the fixing clamp. The hinge property is implemented via the flexibility of the thin-walled connection. The production of corresponding film hinges is extremely inexpensive, so that the production costs of the clamping bracket body can be considerably reduced by using appropriate film hinges. Due to the limited load capacity of corresponding film hinges, it is advantageous if the clamping body and the base body of the fixing clamp are connected to one another via a plurality of film hinges.

The clamping bracket body according to the invention is further advantageously developed in that the one or more hinges are arranged in an edge region of the fixing clamp, the edge region in which the one or more hinges are arranged in the closed state of the fixing clamp is preferably on the side of the fixing clamp facing away from the mounting bracket. The clamped filter material initially runs in the clamping area of the fixing clamp in the direction of the back of the head or an ear of the user. In the vicinity of the fixing clamp, the filter material then has a 180-degree envelope over which the filter material then runs in the direction of the mouth or nose of the user. The change in material also ensures that the fixing clamp does not lie directly on the user's skin, since the clamped filter material runs between the fixing clamp and the user's skin. This further reduces the user's risk of infection. Alternatively, the material can also be handled in such a way that the filter material passes the fixing clamp on the outside, that is to say on the side facing away from the user's head. As a result, the wearing comfort can be increased if the filter material triggers an uncomfortable feeling of wear on the user in the event of skin contact.

The edge region, in which the one or more hinges are arranged, can also lie on the side of the fixing clamp facing the fastening bracket when the fixing clamp is closed. In this case, the filter material does not have to be turned over and the fixing clamp must pass laterally in order to be guided in the direction of the mouth or nose of the user. The required length of the filter material is reduced in this way, so that the use of raw materials is further reduced.

In a further preferred embodiment of the clamping bracket body according to the invention, clamping surfaces which can be pivoted relative to one another are arranged in the clamping region of the fixing clamp for fixing the filter material. In the closed position of the clamping body, the filter material is preferably clamped between the clamping surfaces of the fixing clamp. In particular, the base body of the fixing clamp has one or more clamping surfaces. The clamping body of the fixing clamp preferably has one or more clamping surfaces. Due to the pivotability of the clamping body, the clamping surfaces can be pivoted towards one another.

In a further preferred embodiment of the clamping bracket body according to the invention, a clamping surface of the fixing clamp has a corrugation, another clamping surface of the fixing clamp preferably having a counter corrugation corresponding to the corrugation. The clamping effect can be increased considerably via the corrugated clamping surface, so that the risk of unintentional tearing out of the filter material is reduced. The pivotable clamping body preferably has a corrugation and the base body of the fixing clamp has a counter corrugation corresponding to the corrugation of the clamping body. The corrugation and the counter corrugation preferably extend over at least 50% of the longitudinal extent of the fixing clamp. The corrugation and the counter corrugation preferably extend essentially over the entire longitudinal extent of the fixing clamp.

In addition, a clamping bracket body according to the invention is advantageous in which one clamping surface of the fixing clamp has one or more fixing mandrels, another clamping surface of the fixing clamp preferably having one or more mandrel receptacles corresponding to the one or more fixing mandrels. Alternatively or additionally, a clamping surface of the fixing clamp has one or more fixing spikes, another clamping surface of the fixing clamp preferably having one or more spike receptacles corresponding to the one or more fixing spikes. The filter material used in the clamping area can be pierced via the fixing spikes or fixing spikes, so that in addition to a clamping effect, there is also a positive fit. The fixing spikes or fixing spikes also perforate the filter material so that once used filter material can be recognized by the user if there is any perforation. The risk of unintentional multiple use of filter material is thus significantly reduced.

In another embodiment of the clamping bracket body according to the invention, the fastening bracket has a lower ear leg and an upper ear leg. The lower ear leg is preferably designed in such a way that when the clamp body is used as part of a protective mask, it runs beneath an ear of a user. The upper ear leg is preferably designed in such a way that when the clamp body is used as part of a protective mask, it runs above an ear of a user. The provision of a lower ear leg and an upper ear leg prevents the fastening bracket from coming into contact with an ear of the user when using the clamping bracket body as part of a protective mask, which would be associated with a considerable impairment in comfort. Because the fastening bracket cuts out the user's ear area, the protective mask can be worn by the user for a comparatively long time before the user perceives an impairment of the wearing comfort. The upper ear leg is preferably connected to an upper region of the fixing clamp, the lower ear leg being connected to a lower region of the fixing clamp. The lower ear leg preferably forms the Upper ear and the fixation clamp a surrounding closed material structure.

In a further preferred embodiment of the clamping bracket body according to the invention, the fastening bracket has a closure region which is set up to form a bracket closure with the closure region of a fastening bracket of another clamping bracket body. Preferably, the closure area is designed to form with the closure area of the fastening bracket of the other clamping bracket body a length-adjustable and / or non-destructively releasable bracket closure. The protective mask can be adjusted to the circumference of the user's head by means of an adjustable bow fastener, so that a secure hold and a high level of comfort are guaranteed. Due to the non-destructive releasability of the clip closure, it can be opened and closed multiple times, so that at least the clip clip body of the protective mask can be used several times.

In another preferred embodiment of the clamp strap body according to the invention, the strap lock is a snap lock. The locking area preferably has a corrugation or external toothing which is set up to form the snap lock with a locking tongue of a fastening bracket of another clamping bracket body. Alternatively, the locking area has a locking tongue which is set up to form the snap lock with a corrugation or external toothing of a mounting bracket of another clamping bracket body. The locking tongue can be raised manually via an actuating element, so that a lock release is possible. The closed clip lock can thus be opened again and used multiple times.

The object on which the invention is based is further achieved by a pair of clamping brackets of the type mentioned at the outset, the first clamping bracket body and / or the second clamping bracket body being designed in accordance with one of the embodiments described above. With regard to the advantages and modifications of the clamp bracket pair according to the invention, reference is first made to the advantages and modifications of the clamp bracket body according to the invention.

The first clamping bracket body is preferably set up to run along a first side of a user's head when the pair of clamping brackets is used as part of a protective mask. The second clamping bracket body is preferably designed to run along a second side of a user's head when the pair of clamping brackets is used as part of a protective mask.

The object on which the invention is based is further achieved by a protective mask of the type mentioned at the outset, the first clamping bracket body and / or the second clamping bracket body being designed according to one of the above-described embodiments, or the first clamping bracket body and the second clamping bracket body being a pair of clamping brackets according to one of the above form described embodiments. With regard to the advantages and modifications of the protective mask according to the invention, reference is first made to the advantages and modifications of the clamping bracket body according to the invention and the advantages and modifications of the pair of clamping brackets according to the invention.

The first clamping bracket body is preferably set up to run along a first side of a user's head when the protective mask is used. The second clamping bracket body is preferably set up to run along a second side of a user's head when the protective mask is used.

In a preferred embodiment of the protective mask according to the invention, the filter material is a filter material, in particular a filter non-woven material. The filter nonwoven fabric can comprise, for example, plastic fibers. The plastic fibers can for example be made of polypropylene or another plastic. The filter nonwoven fabric may further include nylon and / or cotton.

• 1 ein Ausführungsbeispiel der erfindungsgemäßen Schutzmaske in einer perspektivischen Schutzmaske;
• 2 die in der 1 abgebildete Schutzmaske während der Verwendung durch einen Benutzer in einer perspektivischen Darstellung;
• 3 die in der 1 abgebildete Schutzmaske während der Verwendung durch einen Benutzer in einer weiteren perspektivischen Darstellung;
• 4 den Bügelverschluss des Klemmbügelpaares der in der 1 abgebildeten Schutzmaske in einer schematischen Schnittdarstellung;
• 5 einen erfindungsgemäßen Klemmbügelkörper samt eingeklemmtem Filtermaterial in einer perspektivischen Darstellung;
• 6 den in der 5 abgebildeten Klemmbügelkörper samt eingeklemmtem Filtermaterial in einer weiteren perspektivischen Darstellung;
• 7 die von dem Kopf des Benutzers abgewandte Seite eines erfindungsgemäßen Klemmbügelkörpers;
• 8 die dem Kopf des Benutzers zugewandte Seite des in der 7 abgebildeten Klemmbügelkörpers;
• 9 den in der 7 abgebildeten Klemmbügelkörper in einer perspektivischen Darstellung;
• 10 den in der 7 abgebildeten Klemmbügelkörper in einer weiteren perspektivischen Darstellung;
• 11 die Fixierklemme des in der 7 abgebildeten Klemmbügelkörpers in einer perspektivischen Darstellung;
• 12 den Verschlussbereich des in der 7 abgebildeten Klemmbügelkörpers in einer perspektivischen Darstellung;
• 13 die von dem Kopf des Benutzers abgewandte Seite eines erfindungsgemäßen Klemmbügelkörpers;
• 14 die dem Kopf des Benutzers zugewandte Seite des in der 13 abgebildeten Klemmbügelkörpers;
• 15 den in der 13 abgebildeten Klemmbügelkörper in einer perspektivischen Darstellung;
• 16 den in der 13 abgebildeten Klemmbügelkörper in einer weiteren perspektivischen Darstellung;
• 17 die Fixierklemme des in der 13 abgebildeten Klemmbügelkörpers in einer perspektivischen Darstellung;
• 18 den Verschlussbereich des in der 13 abgebildeten Klemmbügelkörpers in einer perspektivischen Darstellung; und
• 19 ein erfindungsgemäßes Klemmbügelpaar in einer perspektivischen Darstellung.

Preferred embodiments of the invention are explained and described in more detail below with reference to the accompanying drawings. Show:

• 1 an embodiment of the protective mask according to the invention in a perspective protective mask;
• 2nd the in the 1 shown protective mask during use by a user in a perspective view;
• 3rd the in the 1 shown protective mask during use by a user in a further perspective view;
• 4th the clasp of the pair of clamps in the 1 protective mask shown in a schematic sectional view;
• 5 a clamp body according to the invention together with the clamped filter material in a perspective view;
• 6 the one in the 5 pictured clamp bracket body with clamped filter material in a further perspective view;
• 7 the side facing away from the user's head of a clamp body according to the invention;
• 8th the side of the head facing the user in the 7 pictured clamp body;
• 9 the one in the 7 shown clamping bracket body in a perspective view;
• 10th the one in the 7 shown clamp bracket body in a further perspective view;
• 11 the fixing clamp of the in the 7 shown clamp body in a perspective view;
• 12 the closure area of the in the 7 shown clamp body in a perspective view;
• 13 the side facing away from the user's head of a clamp body according to the invention;
• 14 the side of the head facing the user in the 13 pictured clamp body;
• 15 the one in the 13 shown clamping bracket body in a perspective view;
• 16 the one in the 13 shown clamp bracket body in a further perspective view;
• 17th the fixing clamp of the in the 13 shown clamp body in a perspective view;
• 18th the closure area of the in the 13 shown clamp body in a perspective view; and
• 19th a pair of clamps according to the invention in a perspective view.

The 1 to 3rd show a protective mask 200 , which is designed as a mouth-nose protective mask. The protective mask 200 includes a pair of clamps 100 with a first clamp bracket body 10a and a second clamp body 10b .

The first clamp body 10a comprises a fixing clamp having a clamping area 12a . The second clamp body 10b comprises a fixing clamp having a clamping area 12b . In the clamping areas of the fixing clamps 12a , 12b the clamp bracket body 10a , 10b is a filter material designed as a filter material 202 fixed. The filter fabric can be a single-layer or multi-layer filter nonwoven, which can comprise polypropylene or other plastic fibers.

The filter material 202 hidden when using the protective mask 200 the user's mouth and nose. The first clamp body 10a runs when using the protective mask 200 along a first page 302a Of the head 300 of the user. The second clamp body 10b runs when using the protective mask 200 along a second side 302b Of the head 300 of the user.

The clamp body 10a , 10b each have a mounting bracket 14a , 14b on. The mounting bracket 14a is with the fixing clamp 12a connected. The mounting bracket 14b is with the fixing clamp 12b connected. The mounting brackets 14a , 14b are used to attach the protective mask 200 on the user's head. For this purpose, the mounting bracket 14a , 14b one closure area each 22a , 22b on which together a clasp 102 form. The bow lock 102 is adjustable in length and can be released non-destructively. For loosening the bow lock 102 of the pair of clamps 100 has the mounting bracket 14b of the clamp body 10b an actuator 24th , via which the user can initiate a manual lock release.

The mounting brackets 14a , 14b each have a lower ear leg 16a , 16b and an upper ear thigh 18a , 18b on. The lower ear legs 16a , 16b run when using the protective mask 200 each below one ear of the user. The upper ear thighs 18a , 18b run when using the protective mask 200 each above an ear of the user. Through the lower ear legs 16a , 16b and the upper ear thighs 18a , 18b there is contact between the user's ears and the pair of clamps 100 when using the protective mask 200 avoided. The lower ear leg 16a and the upper ear thigh 18a are about the connecting section 20a with the closure area 22a connected. The lower ear leg 16b and the upper ear thigh 18b are about the connecting section 20b with the closure area 22b connected.

The mounting brackets 14a , 14b are made of a flexible plastic, so that the shape of the mounting bracket 14a , 14b the shape of the head 300 of the user. The fixing clamp 12a and the mounting bracket 14a are integral parts of a first one-piece plastic part. The fixing clamp 12b and the mounting bracket 14b are integral parts of a second one-piece plastic part. The protective mask 200 therefore consists of three different ones Parts, namely the one-piece clamping bracket bodies 10a , 10b and the filter material 202 .

The fixing clamps 12a , 12b can be opened and closed non-destructively. When the fixing clamps are open 12a , 12b can the filter material 202 in the clamping area of the respective fixing clamp 12a , 12b used or from the clamping area of the respective fixing clamp 12a , 12b be removed. In a closed state of the fixing clamps 12a , 12b this is in the clamping area of the respective fixing clamp 12a , 12b filter material used 202 clamped in the respective clamping area.

The 4th shows the clasp 102 of the pair of clamps 100 the one in the 1 to 3rd shown protective mask 200 . The bow lock 102 is a snap lock, which allows length adjustment and can be released non-destructively. The circumference of the protective mask can be adjusted using the length setting 200 to the circumference of the head 300 of the user.

The closure area 22a of the mounting bracket 14a has an external toothing 28 on. The closure area 22b of the mounting bracket 14b has a locking tongue 26 on. The locking tongue 26 and the external teeth 28 together form the snap lock. For this purpose, the locking tongue 26 Detent teeth on which in the external teeth 28 intervention. The locking tongue 26 can have an actuator 24th , which is designed as a lever, are raised so that a lock release is made possible. The closed swing top 102 can thus be reopened and used multiple times.

The 5 and 6 show that one in the fixing clamp 12b trapped filter material 202 the fixing clamp in the direction of the locking area 22b of the mounting bracket 14 leaves. After leaving the fixing clamp 12b points the filter material 202 a material envelope over which the direction of extension of the filter material 202 is changed in the opposite direction. The filter material 202 runs after leaving the fixing clamp 12b along the the head 300 facing outer surface of the fixing clamp in the direction of the nose and / or mouth area of the user. In this way it is avoided that the fixing clamp 12b comes into contact with the skin of the user, so that both the protective effect and the wearing comfort are increased.

The 7 to 11 show a clamp bracket body 10a , the fixing clamp 12a is in an open state. The fixing clamp 12a has one about a pivot axis 38a swiveling clamp body 32a on which is pivotable between an open and a closed position. The sprag 32a is in the open state of the fixing clamp 12a in the open position shown. If the fixing clamp 12a is in the closed state, the clamp body is 32a in the closed position. The fixing clamp 12a has two opposite elastic holding members 48a , 48b on which of the sprags 32a can be kept in the closed position. The elastic holding members 48a , 48b are snap hooks that hold the clamp body 32a can hold in the closed position via a snap connection. The release of the sprag 32a can be done by manual elastic deformation of the holding members 48a , 48b prompted by the user. The sprag 32a is over several, here three, hinges 34a-34c with a base body 30a the fixing clamp 12a connected. The hinges 34a-34c are designed as film hinges. The mounting bracket 14a and the fixing clamp 12a together with the base body 30a , the sprag 32a and the hinges 34a-34c are integral parts of a one-piece plastic part. The clamp bracket body 10a is a one-piece plastic injection molded part.

The fixing clamp 12a is designed as an elongated part, which extends along a longitudinal axis. The pivot axis 38a of the sprag 32a runs parallel to the longitudinal axis of the fixing clamp 12a . The hinges 34a-34c are in an edge area of the fixing clamp 12a arranged. This edge area is in the closed state of the fixing clamp 12a on the the mounting bracket 14a opposite side of the fixing clamp 12a .

The base body 30a and the clamp body 32a each have a clamping surface, the clamping surfaces of the base body 30a and the sprag 32a for fixing the filter material 202 can be pivoted to each other. The clamping surface of the base body 30a shows a corrugation 40a on, the clamping surface of the clamping body 32a one with the corrugation 40a corresponding counter corrugation 42a having. About the combination of corrugation 40a and counter corrugation 42a can the clamping effect of the fixing clamp 12a be increased.

The clamping surface of the sprag 32a has a plurality of fixing mandrels arranged next to one another and equidistant from one another 44a on, the clamping surface of the base body 30a several with the fixing spikes 44a correspond to thorn shots 46a having. Over the locating pins 44a and the thorn receptacles 46a in addition to jamming the filter material 202 a positive connection of the filter material 202 on the fixing clamp 12a can be achieved.

The 12 shows the elongated closure area 22a of the mounting bracket 14a of the clamp body 10a . The closure area 22a has an external toothing 28 on which a bow lock acts as a snap lock 102 is feasible.

The 13 to 17th show a clamp bracket body 10b , the fixing clamp 12b is in an open state. The fixing clamp 12b has one about a pivot axis 38b swiveling clamp body 32b on which is pivotable between an open and a closed position. The sprag 32b is in the open state of the fixing clamp 12b in the open position shown. If the fixing clamp 12b is in the closed state, the clamp body is 32b in the closed position. The fixing clamp 12b has two opposite elastic holding members 50 , 50b on which of the sprags 32b can be kept in the closed position. The elastic holding members 50a , 50b are snap hooks that hold the clamp body 32b can hold in the closed position via a snap connection. The release of the sprag 32b can be done by manual elastic deformation of the holding members 50a , 50b prompted by the user. The sprag 32b is over several, here three, hinges 36a-36c with a base body 30b the fixing clamp 12b connected. The hinges 36a-36c are designed as film hinges. The mounting bracket 14b and the fixing clamp 12b together with the base body 30b , the sprag 32b and the hinges 36a-36c are integral parts of a one-piece plastic part. The clamp bracket body 10b is a one-piece plastic injection molded part.

The fixing clamp 12b is designed as an elongated part, which extends along a longitudinal axis. The pivot axis 38b of the sprag 32b runs parallel to the longitudinal axis of the fixing clamp 12b . The hinges 36a-36c are in an edge area of the fixing clamp 12b arranged. This edge area is in the closed state of the fixing clamp 12b on the the mounting bracket 14b opposite side of the fixing clamp 12b .

The base body 30b and the clamp body 32b each have a clamping surface, the clamping surfaces of the base body 30b and the sprag 32b for fixing the filter material 202 can be pivoted to each other. The clamping surface of the base body 30b shows a corrugation 40b on, the clamping surface of the clamping body 32b one with the corrugation 40b corresponding counter corrugation 42b having. About the combination of corrugation 40b and counter corrugation 42b can the clamping effect of the fixing clamp 12b be increased.

The clamping surface of the sprag 32b has a plurality of fixing mandrels arranged next to one another and equidistant from one another 44b on, the clamping surface of the base body 30b several with the fixing spikes 44b correspond to thorn shots 46b having. Over the locating pins 44b and the thorn receptacles 46b in addition to jamming the filter material 202 a positive connection of the filter material 202 on the fixing clamp 12b can be achieved.

The 18th shows the closure area 22b of the mounting bracket 14b of the clamp body 10b . The closure area 22b includes a locking tongue 26 which with an actuator 24th connected is. The actuator 24th is a lever for the locking tongue 26 . The locking tongue 26 can with external teeth 28 together a clasp 102 form, with the yoke over the actuator 24th by lifting the locking tongue 26 from the external toothing 28 can be solved.

The 19th shows a pair of clamps 100 for a protective mask 200 . The pair of clamps 100 comprises a first clamp bracket body 10a and a second clamp body 10b . The mounting brackets 14a , 14b the clamp bracket body 10a , 10b each have a closure area 22a , 22b on, the closure areas 22a , 22b together a clasp 102 form.

In the illustrated embodiment, the hinges are 34a-34c the fixing clamp 12a in an edge area of the fixing clamp 12a arranged, which in the closed state of the fixing clamp 12a the mounting bracket 14a is facing. The hinges 36a-36c the fixing clamp 12b are in an edge area of the fixing clamp 12b arranged, which in the closed state of the fixing clamp 12b the mounting bracket 14b is facing. The hinges 34a-34c , 36a-36c the fixing clamps 12a , 12b are in the closed state of the fixing clamps 12a , 12b So on the side of the respective fixing clamp facing the user's ear 12a , 12b arranged. That in the fixing clamps 12a , 12b filter material used 202 can thus be guided directly in the direction of the mouth or nose of the user, without any material handling in the area of the fixing clamps 12a , 12b is required.

The connecting sections also run 20a , 20b and the closure areas 22a , 22b now essentially aligned with the lower ear legs 16a , 16b the respective mounting bracket 14a , 14b . As a result, the connecting sections run 20a , 20b and the closure areas 22a , 22b the respective mounting bracket 14a , 14b deeper along the back of the user's head, which increases comfort and increases the seating stability of the face mask.

Reference symbol list

10a, 10b

Clamp bracket body

12a, 12b

Fixing clamps

14a, 14b

Mounting bracket

16a, 16b

Lower ear thighs

18a, 18b

Upper ear thighs

20a, 20b

Connecting sections

22a, 22b

Closure areas

24th

Actuator

26

Locking tongue

28

External teeth

30a, 30b

Base body

32a, 32b

Sprags

34a-34c

Hinges

36a-36c

Hinges

38a, 38b

Swivel axis

40a, 40b

Corrugation

42a, 42b

Counter corrugation

44a, 44b

Locating pins

46a, 46b

Thorn shots

48a, 48b

Holding links

50a, 50b

Holding links

100

Pair of clamps

102

Swing top

200

Protective mask

202

Filter material

300

head

302a, 302b

pages

Claims (17)

Clamping bracket body (10a, 10b) for a protective mask (200), in particular for a mouth-nose protective mask, with - a fixing clamp (12a, 12b), which has a clamping area for fixing filter material (202), and - a fixing bracket (14a , 14b), which is connected to the fixing clamp (12a, 12b) and is designed to be fastened to the head of a user and / or to a fastening bracket (14a, 14b) of a further clamp bracket body (10a, 10b), characterized in that that the fixing clamp (12a, 12b) is set up to be opened and closed non-destructively, filter material (202) being able to be inserted into and removed from the clamping region and in a closed state when the fixing clamp (12a, 12b) is open the fixing clamp (12a, 12b) filter material (202) inserted in the clamping area is clamped in the clamping area. Clamp bracket body (10a, 10b) after Claim 1 , characterized in that the fixing clamp (12a, 12b) and the mounting bracket (14a, 14b) are integral components of a one-piece plastic part. Clamp bracket body (10a, 10b) after Claim 1 or 2nd , characterized in that the fixing clamp (12a, 12b) has a clamping body (32a, 32b) which can be pivoted about a pivot axis (38a, 38b) and which can be pivoted between an open position and a closed position, the clamping body (32a, 32b ) in the open state of the fixing clamp (12a, 12b) is in the open position and in the closed state of the fixing clamp (12a, 12b) is in the closed position. Clamp bracket body (10a, 10b) after Claim 3 , characterized in that the fixing clamp (12a, 12b) has one or more elastic holding members (48a, 48b, 50a, 50b) which are designed to hold the clamping body (32a, 32b) in the closed position via a snap connection. Clamp bracket body (10a, 10b) after Claim 3 or 4th , characterized in that the fixing clamp (12a, 12b) is designed as an elongated part which extends along a longitudinal axis, the pivot axis (38a, 38b) of the clamping body (32a, 32b) parallel or at an angle of at most 20 degrees, preferably at most 10 degrees to the longitudinal axis of the fixing clamp (12a, 12b). Clamping bracket body (10a, 10b) according to one of the Claims 3 to 5 , characterized in that the clamping body (32a, 32b) is connected to a base body (30a, 30b) of the fixing clamp (12a, 12b) via one or more hinges (34a-34c, 36a-36c). Clamp bracket body (10a, 10b) after Claim 6 , characterized in that the one or more hinges (34a-34c, 36a-36c) are designed as film hinges. Clamp bracket body (10a, 10b) after Claim 6 or 7 , characterized in that the one or more hinges (34a-34c, 36a-36c) are arranged in an edge region of the fixing clamp (12a, 12b), the edge region in which the one or more hinges (34a-34c, 36a-36c) are arranged, preferably on the side of the fixing clamp (12a, 12b) facing away from the fixing bracket (14a, 14b) or on the side of the fixing clamp (12a, 12b) facing the fixing bracket (14a, 14b). Clamping bracket body (10a, 10b) according to one of the preceding claims, characterized in that in the clamping area of the fixing clamp (12a, 12b) for fixing the filter material (202) are arranged pivotable and clamping surfaces. Clamp bracket body (10a, 10b) after Claim 9 , characterized in that one clamping surface of the fixing clamp (12a, 12b) has a corrugation (40a, 40b), another clamping surface of the fixing clamp (12a, 12b) preferably having a counter-corrugation (42a, 42b) corresponding to the corrugation (40a, 40b) ) having. Clamp bracket body (10a, 10b) after Claim 9 or 10th , characterized in that a clamping surface of the fixing clamp (12a, 12b) has one or more fixing mandrels (44a, 44b), another clamping surface of the fixing clamp (12a, 12b) preferably having one or more with the one or more fixing mandrels (44a, 44b) 44b) has corresponding mandrel receptacles (46a, 46b). Clamping bracket body (10a, 10b) according to one of the preceding claims, characterized in that the fastening bracket (14a, 14b) has a lower ear leg (16a, 16b) and an upper ear leg (18a, 18b), the lower ear leg (16a, 16b) being designed in this way is designed to run beneath an ear of a user when using the clamp body (10a, 10b) as part of a protective mask (200), and the upper ear leg (18a, 18b) is designed in such a way that when using the clamp body (10a, 10b ) to run as part of a protective mask (200) above an ear of a user. Clamping bracket body (10a, 10b) according to one of the preceding claims, characterized in that the fastening bracket (14a, 14b) has a closure region (22a, 22b) which is set up to engage with the closure region (22a, 22b) of a fastening bracket (14a, 14b) of another clamping bracket body (10a, 10b) to form a bracket closure (102). Clamp bracket body (10a, 10b) after Claim 13 , characterized in that the bow lock (102) is a snap lock and the locking area (22a, 22b) has a corrugation or external toothing (28) which is set up with a locking tongue (26) of a mounting bracket (14a, 14b) another clamp body (10a, 10b) to form the snap lock, or - has a locking tongue (26) which is set up with a corrugation or external toothing (28) of a fastening bracket (14a, 14b) of another clamp body (10a, 10b) To form snap lock. Pair of clamping brackets (100) for a protective mask (200), in particular for a mouth-nose protective mask, with - a first clamping bracket body (10a), and - a second clamping bracket body (10b), characterized in that the first clamping bracket body (10a) and / or the second clamping bracket body (10b) is designed according to one of the preceding claims. Protective mask (200), in particular a mouth-nose protective mask, with - a first clamping bracket body (10a), which comprises a fixing clamp (12a) having a clamping area, - a second clamping bracket body (10b), which comprises a fixing clip (12b) having a clamping area , and - a filter material (202), which is fixed in the clamping areas of the fixing clamps (12a, 12b) of the clamping bracket body (10a, 10b) and is set up to use a protective mask (200) to protect the mouth and / or nose of a user to cover up; characterized in that the first clamping bracket body (10a) and / or the second clamping bracket body (10b) according to one of the Claims 1 to 14 is formed or in that the first clamping bracket body (10a) and the second clamping bracket body (10b) follow a pair of clamping brackets (100) Claim 15 form. Protective mask (200) Claim 16 , characterized in that the filter material (202) is a filter material, in particular a filter non-woven material.

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