• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a length-adjustable folding cover, which comprises a base body (2) with an open cross-section of lined-up and each formed by a plurality of separate blanks of an elastic, in particular rubber-elastic material wall sections (3, 4). The wall sections (3, 4) are connected to each other alternately in the region of their inner edges (7) and outer edges (8) with the formation of outer folds (5) and inner folds (6) and can be bent relative to one another. In at least one of the outer folds (5) a support frame (9) is arranged, which abuts along an area of contact between the outer fold (5) and the support frame (9) on an inner surface (10) of the outer fold (5). According to the invention, the support frame (9) is only partially connected along the contact region via a connection with the outer fold (5), wherein the connection between the support frame (9) and the outer fold (5) is limited to a maximum length of 50% along the contact region and / or positively formed by the support frame (9) has at least two hook elements which correspond with receiving areas of the outer fold (5), so that support frame (9) and outer fold (5) at least partially intermesh.
    公开号:CH708623B1
    申请号:CH01375/14
    申请日:2014-09-10
    公开日:2018-07-31
    发明作者:Redeker Bernd；Kubiak Jakob；Lassek Darius；Cakmak Buelent
    申请人:Moeller Werke Gmbh；
    IPC主号:
    专利说明:

    Description: [0001] The invention relates to a length-adjustable fold cover according to the features in the preamble of patent claim 1.
    The design of folding covers depends primarily on their respective purpose. In addition to different cross-sectional shapes, such as round, oval or angular, they can be designed in particular with a closed or open cross-section.
    For this purpose, various possibilities for the realization of individual embodiments are already known from the prior art. In general, a mostly flat material blank is used, for example, a foil material. To allow stretching and compression of the pleat covers, they have corresponding folds in the form of pleats.
    In order to realize the sequence of individual inner folds and outer folds, the successive wall sections of the fold cover are alternately connected to one another at their inner edges and outer edges.
    Such fold covers are also known under the name «Scheibenbälge» or «Gummischeibenbälge». Depending on the configuration, they are equipped with stabilizing support frame, which are usually inserted from the inside of the fold cover in the outer folds.
    Open cross-sectional shapes regularly require such support frame to compensate for the weakening by the lateral opening and to stabilize the pleat cover overall. In order to prevent any slippage of the support frame within the fold covers, the support frames arranged therein are fixed accordingly, for example by means of gluing, sewing or welding.
    According to DE 10 2009 048 780 A1, a Faltenbalganordnung is proposed which comprises at least one bellows. This bellows contains a rubber-elastic Belgkörper which encloses a fluid chamber. Furthermore, the bellows body has at least one annular fold. The annular fold is formed by two annular fold limbs connected to one another in a radially outer vertex area. The bellows body is composed of a plurality of axially in succession arranged coaxially arranged individual Belgkörperelementen together. In this way, the annular fold of two, one of the two associated fold leg defining bellows body elements is formed. The individual bellows body elements are fluid-tightly interconnected.
    With DE 10 137 803 A1, a cylindrical and self-contained folding cover has become known, which serves for all-round path coverage of a laser beam. The fold cover consists of a bellows material folded alternately into inner folds and outer folds. For this purpose, individual disc elements of the bellows material are connected alternately at their inner and outer edges circumferentially. Within the outer folds, a circular cylindrical metal panel may be used. In order to fix the metal panels in their position relative to the fold cover, these are fastened with their outer edges to one of each two adjacent disk elements. The attachment of the metal panels is performed circumferentially. For this purpose, the outer edges of the metal panels can be encompassed by thermoplastic rings, which are arranged on each flank of one of the disk elements.
    In order to maintain the mobility of the fold cover, the metal panels are arranged at the height of a neutral diameter of the disk elements. The neutral diameter is that between an inner and an outer edge of the disc elements which remains the same when the fold cover is elongated or shortened.
    DE 10 2006 041 745 A1 discloses a protective bellows, which has a central longitudinal axis encircling bellows material. The bellows shown here also serves to cover a laser beam, so that it is closed around the central longitudinal axis in itself. In order to allow the expansion and compression of the protective bellows, this typically includes inner pleats and outer pleats.
    Within each fold an aperture is inserted and connected by means of an elastic coupling element with the bellows material. For this purpose, the coupling elements themselves are mounted in the region of seams of two adjacent bellows sections, which together form an outer fold of the bellows. When attaching the coupling elements sewing, gluing or welding is proposed. In order to enable the changes of the diameter in the region of the seams during stretching and compression of the protective bellows with respect to the diaphragms, the coupling elements are configured correspondingly elastic.
    By the arrangement of the elastic coupling elements of the bellows retains its mobility.
    The proposed embodiments of folding covers assets are not able to completely prevent the disabilities occurring in practice in the mobility of the fold cover. Especially in cross-sectional shapes, these are due to the necessary connection between the support frame and the outer wall of the fold covers. In addition, the necessary fixation of the support frame is an additional expense, which makes the production of such fold covers altogether more difficult and thus more expensive. Since some applications require a sufficient tightness of such pleat covers, sometimes tough stitched connections present a problem. In these cases, stitching is either not feasible or requires subsequent sealing of the seams with a corresponding expense.
    In view of the known in the prior art forms of folding covers whose design thus provides room for improvement.
    Against this background, the present invention seeks to develop a described as open cross-section pleat cover to the effect that this has improved functionality in terms of disability as possible compression and elongation and allows a simplified and thus more cost-effective production.
    The solution to this problem consists according to the invention in a variable-length fold cover with the features of claim 1. Advantageous embodiments can be found in the dependent claims.
    The inventive fold cover comprises a base body with an open, in particular U-shaped open cross-section of juxtaposed wall sections. The wall sections are formed from an elastic, in particular rubber-elastic material. The individual wall sections are formed from a plurality of separate blanks. The wall sections are arranged such that they are connected to each other alternately in the region of their inner edges and outer edges to form outer folds and inner folds. In the connected state of the wall sections, the fold cover can be stretched and compressed in the longitudinal direction of the main body by these wall sections are angled against each other. Thus, each immediately adjacent and interconnected wall sections each include an angle of 90 ° maximum between them.
    The angle can be reduced depending on the elongation of the fold cover to 0 °, wherein the wall sections then substantially at least partially superimposed flat.
    The main body of the fold cover forming wall sections are made of an elastic material, which preferably resembles in its properties that of rubber. Depending on the requirement, the material blank can also be reinforced, for example via a suitable fabric. For this purpose, the fabric can be incorporated into the material blank and / or placed on this at least in some areas and connected.
    In at least one of the outer folds a support frame is arranged. The support frame has the task to stabilize the body of the fold cover. Preferably, a support frame can be arranged in each individual one of the outer folds. In its arrangement within the outer fold of the support frame is then along a contact area on an inner surface of the outer fold. Preferably, the support frame is made of metal or plastic.
    As concerns a touch is understood in the context of the invention, which initially contains no connection between outer fold and support frame. Thereafter, said contact area sets in wherever they touch or where the support frame has a contact with the outer fold.
    According to the invention, the support frame is only partially connected to the outer fold. In other words, reduces the necessary connection between the support frame and outer fold on only a few subregions and / or subsections, so that no circumferential and / or the connection area completely concerned connection is provided. Rather, it is contemplated in the invention that the connection between the support frame and the outer fold is limited to a maximum length of 50% of the contact area.
    Alternatively or in addition to this, the inventive embodiment be such that the connection between the support frame and the outer fold is formed positively. As a result, an extremely fast production of the fold cover is made possible. The positive connection is designed so that support frame and associated outer fold at least partially intermesh. As a result, the form fit can take place within the contact area, so that no additional measures or arrangements are required in order to realize the necessary connection.
    For the positive configuration, the support frame has at least two hook elements, which then correspond to a receiving area of the outer fold. Preferably, the hook elements can be spaced apart from each other and engage in corresponding receiving areas of the outer fold. The arrangement of at least two such connections, the support frame is secured against any pivoting out of the outer fold. This is particularly relevant in connection with the cross-sectional open base body, which lacks an abutment in the form of the outer fold at least on one side area. Particularly preferably, at least two such hook elements are provided with corresponding receiving areas in order to effectively prevent any displacement or tilting of the support frame in the longitudinal direction of the base body during its stretching.
    The particular advantage of the inventive design of the compound is to achieve the necessary fixation at the same time least adverse effect on the mobility of the fold cover with respect to their elongation and compression in the longitudinal direction. The preservation and improvement of the mobility are due to the fact that the wall sections to be bent against one another undergo an elastic deformation, in particular an elastic bend, with increasing angle in the region of their connection. This is already a resistance to the simple elongation of the fold cover, which is not increased thanks to the reduced to only a few sub-areas connection to the support frame. In other words, the freedom of movement of the base body relative to the support frame is increased by said only regional connection.
    Thanks to the thus only a few compounds to be created, the production of such a folding cover is also facilitated in their effort, so that a more economical production is possible.
    The main body preferably has a U-shaped configuration in its cross section.
    Of course, other cross-sectional shapes are conceivable, which allow an open cross-section. It would be conceivable, for example, a semicircular cross-section or a V-shaped or polygonal cross-section, wherein in the latter at least one cross-sectional side is open.
    In an advantageous embodiment of the invention it is provided that the respective contact region of the support frame and outer fold is arranged in each case between two immediately adjacent wall sections of the outer fold and an outer edge region of the support frame. In this way, the support frame is connected in the region with the outer fold, on which the immediately adjacent wall sections are connected to each other. By this arrangement of the support frame, the outer contour of the body is fixed to the outer, facing away from each other end portions of the outer folds, while the inner folds with respect to their mutually facing end portions in a stretching or compression of the body have a variable inner contour between them.
    According to an advantageous development of the particular cross-section open configuration of the fold cover is provided that the support frame has a shape adapted to the respective body cross-sectional shape. Thus, the support frame preferably also be formed U-shaped. Here, the support frame has two legs and a bridge connecting the legs together. In this context, it is further contemplated that the necessary connection of outer fold and support frame is particularly preferably carried out over a respective end portion of the two legs.
    This embodiment is particularly advantageous with regard to the production of the novel folding cover. Thus, the support frame can be inserted later in particular from the inside into the outer fold especially in the U-shaped configuration of the body. The necessary connection is then made in a freely accessible area, namely at the end portions of the two legs of the likewise U-shaped support frame. Due to the simplified mounting of the support frame, the production of the folding cover is made easier and can therefore be carried out more economically.
    With respect to the nature of the actual connection, a variety of possibilities is conceivable and contemplated in a continuation of the invention. Preferably, the connection between the support frame and the outer fold can be made cohesively. In the present case, an integral connection is understood to be an adhesive connection or a welded connection. Alternatively or in combination, the connection can also be made non-positively, for example via a suitable clamping.
    Other possible types of connection between the support frame and outer fold in the context of the invention, the arrangement of an additional connection means before. The use of a connecting means may alternatively or in combination with the previously indicated connection possibilities. As possible connecting means are, for example, pin-shaped elements, such as rivets. The advantage of using rivets is a quick and cost effective realization of the connection. In addition, such a connection is reversible by the corresponding rivet example is drilled out to make a necessary replacement in the course of a repair of the fold cover can. Of course, the connecting means may also be configured in thread form, for example in connection with a seam connection. Here, the connection is realized by sewing.
    The choice of the appropriate connection between the support frame and outer fold depends in particular on the respective design requirements. In other words, the requirement of a type of connection invisible from outside the fold cover can lead to the connection being executable only inside the main body. In this case, for example, the use of additional connecting means would be inappropriate, since they are visible from the outside. At this point, for example, the choice of a positive connection would be advantageous.
    The invention provides that, for example, in every third, second or even all outer folds a support frame can be arranged. In this context, it is provided that in this case immediately adjacent support frame are coupled together via at least one Auszugsbegrenzer. The extract limiter has the task to protect the body from possible overstretching with appropriate damage. Preferably, a plurality of Auszugsbegrenzer are provided which limit their arrangement between the support frame whose maximum possible spacing from each other. For example, the pull-out limiter can be designed as a rope, in particular as a steel cable, or in the form of a folded fabric band, which accordingly tensions during stretching of the base body and, when reaching its straight length, brings about a corresponding resistance to further elongation.
    A further advantageous development of the invention further provides that the support frame has at least one approach area for a guide rail. Preferably, the guide rail is arranged in the interior of the base body and extends in its longitudinal direction. In this case, the attachment area is designed to at least partially transfer the weight of the fold cover to the at least one guide rail. In this way, there is an advantageous relief of the base body and in particular of the wall sections forming it, which is significant, in particular with long fold covers. Thus, the depositing of the dead weight of the fold cover on the guide rail causes a strain relief within the body, which can increase its wear time significantly.
    According to a particularly preferred further development of the concept of the invention, the base body can be designed without a coil. This is essentially due to the U-shaped cross-section of the base body of individual blanks.
    Fold covers made of a continuous sheet material receive their inner and outer folds by changing directions, which is known by the term "pleating". Such manufactured basic body have the disadvantage that their corners must be extra formed due to the continuous material and the associated surplus material. The excess material is folded into a so-called gusset. This may for example have a triangular shape. These gussets are known weaknesses of the cover, where the material is usually subject to increased wear and failure in these areas first. In contrast, the composition of the inventive folding cover of individual correspondingly shaped blanks requires no gussets in the corners.
    By the design possibilities described above, a fold cover is provided, which has an improved functionality in relation to a possible obstruction-free compression and elongation. The basis for this is the concept of the invention of the reduced connections between outer folds and support frames in order to obtain maximum freedom of movement of the fold cover. Furthermore, this overall allows a simplified and thus more cost-effective production. This applies in particular to the design of the necessary connection with a positive connection with corresponding hook elements, which allow a very simple realization of the compound.
    Hereinafter, the present invention will be explained in more detail with reference to some schematically illustrated in the drawings embodiments. It shows:
    1 shows a folding cover according to the prior art in a longitudinal section,
    2, the fold cover of FIG. 1 in a plan view,
    3 shows a fold cover with inventive features,
    4 shows a cross-sectional view with further features of the folding cover according to the invention,
    Fig. 5 is a longitudinal sectional view of the inventive folding cover.
    The fold cover 1 shown in Fig. 1 in cross section in the direction of its longitudinal axis x. As can be seen, for reasons of clarity, only one half of the folding cover 1 is shown as far as its longitudinal axis x.
    The fold cover 1 comprises a main body 2, which consists of juxtaposed wall sections 3, 4. The wall sections 3, 4 are preferably formed from an elastic, in particular rubber-elastic material blank. The wall sections 3, 4 are connected to one another with the formation of outer folds 5 and inner folds 6. The connection is in each case alternately in the region of inner edges 7 and outer edges 8 of the wall sections 3, 4 realized.
    The wall sections 3, 4 are angled against each other and include an angle a of <90 ° between them. In the present case, the angle a is 30 °. Due to the arrangement of the inner folds 6 and outer folds 5 a Stre ccation / compression B of the fold cover 1 in the longitudinal direction x allows x, wherein the angle a due to the change in position of the interconnected wall sections 3, 4 changed accordingly.
    In the outer folds 6, a support frame 9 is arranged in each case. The respective support frame 9 lies in a contact region C against an inner surface 10 of the outer fold 5. In this case, the contact region 10 is located between in each case two directly adjacent wall sections 3, 4 of the outer fold 5 and an outer edge region 11 of the support frame 9.
    2 shows the arrangement of the support frame 9 within the main body 2. In the present case, the usual definition of the support frame 9 in the outer fold 5 is explained in the prior art.
    As can be seen, the main body 2 of the folding cover 1 is open in its cross section, wherein the cross section of the base body 2 is configured substantially U-shaped. This also applies to the support frame, which is also U-shaped. Here, this has two legs 12, 13 and a leg 12, 13 interconnecting web 14. A compound D of support frame 9 and outer fold 5 is carried out circumferentially over the entire contact area C away. In the present case, this may be, for example, a welding, adhesive or sewing seam.
    FIG. 3 shows an embodiment according to the invention compared to the representation of FIG. 2. The explanations concerning the reference signs above also apply correspondingly to the embodiment according to the invention, so that only the differences are discussed here. As indicated, the support frame 9 is not circumferential, but only partially connected to the outer fold 5. The length of the connection D between the support frame 9 and the off
    权利要求:
    Claims (7)
    [1]
    According to the invention, the crease 5 is restricted to a maximum of 50% of the contact area C between the outer fold 5 and the support frame 9. The connection D between the support frame 9 and the outer fold 5 takes place in each case via an end section 15 of the two legs 12, 13 of the support frame 9. [0048] FIG Support frame 9 has at the end portions 15 of the legs 12, 13 arranged neck portions 16 for a guide rail not shown here. The shoulder portions 16 are adapted to at least partially transfer the weight of the pleat cover 1 to the guide rail. In addition, the web 14 of the support frame 9 has two coupling points 17 for Auszugsbegrenzer not shown here in detail. Fig. 4 shows an alternative way of fixing the support frame 9 within the outer fold 5. In the present case, the connection D between the support frame 9 and the outer fold 5 is formed positively. For this purpose, the support frame 9 at least two hook elements 19, which correspond to receiving areas 18 of the outer fold 5. The hook elements 19 are arranged on the end portions 15 of the legs 12, 13 of the support frame 9. In this way, support frame 9 and outer fold 5 at least partially intermesh. FIG. 5 again shows the fold cover 1 according to FIG. 3 in the longitudinal sectional view as in FIG. 1. As can be seen, the individual support frames 9 in the outer folds 5 are coupled to one another via extension limiters 20. As a result, the possible spacing of the support frame 9 is limited to each other to the maximum length of the Auszugsbegrenzer 20 in its extended state not shown in detail. claims
    1. Length-adjustable folding cover, comprising a base body (2) with an open cross-section of juxtaposed and each formed by a plurality of separate blanks of an elastic, in particular rubber-elastic material wall sections (3, 4), which under formation of outer folds (5) and inner pleats ( 6) in each case alternately in the region of their inner edges (7) and outer edges (8) are interconnected and angled against each other, wherein in at least one of the outer folds (5) between two of their immediately adjacent wall sections (3, 4) a support frame (9) is arranged which abuts against an inner surface (10) of the outer fold (5) along a contact region (C) between the outer fold (5) and the support frame (9), characterized in that the support frame (9) is only partially connected via a connection (D) is connected to the outer fold (5), wherein the connection (D) between the support frame (9) and the outer fold (5) on a m aximum length of 50% along the contact region (C) is limited and / or formed positively by the support frame (9) has at least two hook elements (19) which correspond to receiving areas (18) of the outer fold (5), so that the support frame (9) and the outer fold (5) at least partially intermesh.
    [2]
    2. folding cover according to claim 1, characterized in that the contact region (C) between two immediately adjacent wall sections (3, 4) of the outer fold (5) and an outer edge region (11) of the support frame (9) is arranged.
    [3]
    3. folding cover according to claim 1 or 2, characterized in that in a base body (2) having a U-shaped cross-section of the support frame (9) is U-shaped and has two legs (12, 13) and one leg (12, 13 ) has interconnecting web (14), wherein the connection (D) between the support frame (9) and outer fold (5) via an end portion (15) of the legs (12, 13).
    [4]
    4. folding cover according to one of claims 1 to 3, characterized in that the connection (D) between the support frame (9) and the outer fold (5) takes place cohesively or non-positively.
    [5]
    5. folding cover according to one of claims 1 to 4, characterized in that the connection (D) between the support frame (9) and the outer fold (5) via an additional connecting means.
    [6]
    6. folding cover according to one of claims 1 to 5, characterized in that at least two support frames (9) are provided, which are arranged in each case one of the outer folds (5), wherein the support frame (9) via Auszugsbegrenzer (20) are coupled together ,
    [7]
    7. folding cover according to one of claims 1 to 6, characterized in that the support frame (9) has at least one shoulder region (16) for a guide rail, wherein the neck region (16) is adapted to the weight of the fold cover (1) at least partially to transfer to the guide rail.
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    同族专利:
    公开号 | 公开日
    DE102013015092A1|2015-03-19|
    DE102013015092B4|2020-12-31|
    CH708623A2|2015-03-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE7720178U1|1900-01-01|Moeller-Werke Gmbh, 4800 Bielefeld|
    DE2137197B2|1971-07-24|1974-03-07|Moeller Werke Gmbh, 4812 Brackwede|Bellows for covering sliding and guideways on machines|
    DE7618930U1|1976-06-15|1977-12-01|Moeller Werke Gmbh, 4800 Bielefeld|BELLOWS FOR COVERING SLIDES AND GUIDE TRACKS ON MACHINERY|
    DE3735452A1|1987-10-20|1989-05-03|Arnold Arno Gmbh & Co|Bellows|
    DE4435824A1|1994-10-07|1996-04-11|Moeller Werke Gmbh|Folding bellows for protecting guide tracks|
    DE10005107C2|2000-02-07|2002-06-20|Moeller Werke Gmbh|Cylindrical laser protection bellows|
    DE102005013496B4|2005-03-23|2010-04-29|Hennig Holding Gmbh|bellow|
    DE102006041745B4|2006-09-04|2010-02-25|Möller Werke GmbH|bellows|
    DE102009048780B4|2009-10-08|2013-11-28|Festo Ag & Co. Kg|bellows|DE102020110576A1|2020-04-17|2021-10-21|Hema Maschinen- Und Apparateschutz Gmbh|Rigid-member pleat cover and method of manufacturing the pleat cover|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102013015092.2A|DE102013015092B4|2013-09-14|2013-09-14|Adjustable fold cover|
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