EP4347179A1 - Couvercle de protection ayant une aide à l'installation - Google Patents

Couvercle de protection ayant une aide à l'installation

Info

Publication number
EP4347179A1
EP4347179A1 EP22729485.7A EP22729485A EP4347179A1 EP 4347179 A1 EP4347179 A1 EP 4347179A1 EP 22729485 A EP22729485 A EP 22729485A EP 4347179 A1 EP4347179 A1 EP 4347179A1
Authority
EP
European Patent Office
Prior art keywords
protective cover
edge
fastening means
length
variable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22729485.7A
Other languages
German (de)
English (en)
Inventor
Hagen SCHÜLLER
Samuel SCHAUBERT
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arno Arnold GmbH
Original Assignee
Arno Arnold GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arno Arnold GmbH filed Critical Arno Arnold GmbH
Publication of EP4347179A1 publication Critical patent/EP4347179A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/08—Protective coverings for parts of machine tools; Splash guards
    • B23Q11/0816—Foldable coverings, e.g. bellows
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/08—Protective coverings for parts of machine tools; Splash guards
    • B23Q11/0825—Relatively slidable coverings, e.g. telescopic

Definitions

  • the invention relates to a protective cover according to the preamble of claim 1 and a machine with a corresponding protective cover according to the preamble of claim 16.
  • Protective covers are already known from the prior art and are used in particular, but by no means exclusively, to cover moving machine parts or the like. Such protective covers have elements that can be changed in length. In this way, the machine parts are not only protected against external influences, such as chips, dust particles or other dirt, both in the retracted and extended state, but can also be sealed off from the environment. For example, DE 20 2012 008 987 Ul should be mentioned.
  • the protective cover are connected to a support frame, which is used for stabilization, in particular for support. It is known from DE 20 2016 103 836 U1 that the protective covering element enters into a detachable click connection with the support frame. Using the detachable click connection, it is possible to attach parts of the Remove the protective frame for maintenance and/or repairs and then reinstall it.
  • the reason for this is that the click closure naturally allows the protective cover element, which is variable in length, to shift movements relative to the frame element.
  • the displacement movements may result in a permanent or temporary deformation of the protective cover element variable in length and/or the frame element, so that the click connection unintentionally loosens during operation.
  • the invention has therefore set itself the task of providing a protective cover len to overcome the above difficulties and especially the maintenance and / or repair-related costs and thereby to reduce the downtime of the machine.
  • a protective cover is proposed with at least one protective cover element variable in length and at least one frame element, wherein the protective cover element variable in length has at least one holding means, wherein the frame element has a first longitudinal edge, and at least one fastening means is arranged on the first longitudinal edge, and wherein the holding means and the fastening means can be releasably connected, in particular with a non-positive and/or positive connection.
  • the protective cover is characterized in that an assembly aid is arranged on the fastening means, the assembly aid comprising a positioning edge and a guiding edge, and the positioning edge and the guiding edge being substantially opposite edges on the assembly aid.
  • the protective cover according to the invention is based on the basic idea that the assembly aid on the one hand ensures the correct positioning of the length-variable protective cover element relative to the frame element and then specifies and facilitates correct assembly and thus connection of the holding means and the fastening means. In this way, damage to the holding means and/or the fastening means is avoided and incorrect composition is prevented. Unintentional detachment due to previous damage and/or incorrectly executed connections caused by incorrect connection and/or attempts of this kind is therefore impossible. At the same time, the time required for removal and/or reinstallation is shortened, since time-consuming alignment work is simplified and shortened by significantly easier positioning.
  • the at least one protective cover element variable in length and the at least one frame element are connected in such a way that force and/or movement can be transmitted between them.
  • a force and/or a movement which leads to a shortening or an extension of the protective cover element variable in length, should be transferred to or from the frame element.
  • the protective cover has at least two frame elements, it is obvious to the person skilled in the art that these should move towards one another when shortening and away from each other when lengthening.
  • Such a transmission of force and/or movement from one frame element to the next is made possible via a connection, in particular a non-positive and/or positive connection, with the protective cover element variable in length and by the protective cover element variable in length.
  • the term "protective cover” relates in particular, but by no means exclusively, to a cover for moving machine parts or the like. In the context of the invention, the term therefore designates the entire protective cover, a region of this and/or at least one element of this.
  • the protective cover according to the invention comprises at least one protective cover element that is variable in length in the direction in which the protective cover is pulled out, and at least one frame element.
  • the frame element can be part of a support frame, which comprises at least one, preferably several, frame element(s), which are usually distributed at equal intervals over the entire length of the protective cover and which can be moved or shifted in the pull-out direction of the protective cover.
  • the frame element it is advantageous for the frame element to have at least one, preferably two, support profile(s) for lateral support.
  • the protective cover a guide, a track, an end frame, a Aperture and / or include a drive.
  • Generic and suitable protective cover elements are known to a person skilled in the art.
  • the term "force” relates in particular to an acceleration force and/or a preload force.
  • the acceleration force causes the movement that results in the shortening or lengthening of the length-adjustable protective cover member and/or the at least one frame member.
  • the origin of the acceleration force is of secondary importance. It is conceivable that the acceleration force is generated by the protective cover's own drive or by a drive from another movable machine part connected to the protective cover.
  • the biasing force it is possible on the one hand to achieve a uniform distribution of the frame elements and on the other hand to accomplish a rotation of these. The advantages of such a twist are known to those skilled in the art.
  • the origin of the biasing force of secondary importance is partly or completely brought forth by the length-variable protective covering element. The person skilled in the art is aware of suitable measures and/or configurations for the protective cover element that is variable in length.
  • connection is made possible by a geometric coordination of two components involved in the connection, namely the at least one holding means of the protective cover element variable in length and the at least one fastening means of the frame element.
  • Suitable geometries are known to the person skilled in the art. This coordination of the geometries enables a simple, fast, stable and permanent connection of the protective covering element to the frame element. According to the invention, no additional securing means, such as screws and/or clamps and/or the like, needed. In particular, it is possible to release the connection again.
  • the frame element has at least one first edge. It has also been recognized as essential that the frame element can be connected to the protective cover element in the region of the first edge.
  • first edge relates to every conceivable edge of the frame element and refers to the corresponding edge of the frame element, but not to any holding means, assembly aids, guide edges, positioning edges, Support profiles and/or prestressing means of the frame element, which can be present in the area of this edge.
  • the arrangement of the fastening means in the area of the first edge is based on the consideration that the area of the first edge is easily accessible for the user installing or removing the protective cover.
  • the frame element can be detached from the protective cover element, which is variable in length, using the fastening means, in particular can be connected in a non-positive or positive manner, and can be connected for the transmission of movements and/or force, it is also necessary for the protective cover element to have at least one holding means. Due to the orientation of the length-adjustable protective cover element to the frame elements, the arrangement of the holding means on the length-adjustable protective cover element is arbitrary.
  • the assembly aid has a positioning edge for ensuring the correct positioning of the protective covering element, which is variable in length, and the frame element in relation to one another.
  • the retaining means of the protective cover element variable in length is brought into direct contact with the positioning edge at a first suitable point.
  • the Positioning edge is suitably designed so that this direct contact is only possible in a way that the correct positioning of Holding means and fasteners ensures.
  • the exact point of contact of the positioning edge with the first suitable point is arbitrary, as a result of which correct positioning can be achieved in a simple manner and without complex alignment. Possible suitable configurations of the positioning edge are described elsewhere.
  • the assembly aid has a guide edge.
  • the leading edge guides the movement of the frame member and the length-variable protective cover member relative to each other after positioning at the positioning edge. Through this movement, the holding means and the fastening means are releasably connected to one another. The guidance takes place by moving along a second suitable location of the holding means on the leading edge. Possible suitable configurations of the leading edge are described elsewhere.
  • the leading edge preferably has an initially constant curvature, which is followed by an area that obviously, ie, appears to have a stronger curvature, with the leading edge having the strongest curvature in the area of the widest extent of the leading edge.
  • the leading edge forms a nose in that its directional component, which extends parallel to the first edge, first falls to 0 and then points in the other direction, namely in the direction of the fastening means.
  • the leading edge inevitably comes into contact with the appropriate location of the holding means when, after the positioning of the protective cover element and the frame member using the positioning edges, the protective cover element variable in length is first moved along the positioning edge towards the frame member .
  • the change from first guiding along the length-variable protective cover element to guiding along the guide edge can be achieved by visual and/or haptic features on the assembly aid is shown. For example, colored markings, embossing and/or symbols are conceivable.
  • the above-described movements of the frame element or the fastening means and the length-variable protective cover element or the holding means are relative movements.
  • Each movement relative to one another can be based on a sole movement of the frame element or the protective cover element, which can be changed in length, or on a simultaneous or alternating movement of both elements. Any combination of conceivable movements is always included.
  • a movement of the length-variable protective cover element along the leading edge also means a movement of the frame element with the leading edge along the length-variable protective cover element and a relative movement of the elements to one another. It is also essential to the invention that the positioning edge and the guide edge are essentially opposite edges on the assembly aid.
  • connection between the holding means and the fastening means can be designed to be detachable and particularly secure against unintentional detachment if the direction of the detachment action is a movement that is perpendicular to the pull-out direction and includes at least one change of direction. This is made possible by changing from the positioning edge to the leading edge. However, this change is only possible if these edges are arranged on essentially opposite sides of the assembly aid. It is also conceivable that the assembly aid has additional edges on additional sides. It is conceivable, for example, to have an upper edge at the top of the assembly aid, which is arranged between the positioning edge and the guide edge.
  • the term "substantially opposite edges” relates to edges which do not have any intersections and whose end points differ in at least one point.
  • the material from which the length-variable protective cover element is made is fundamentally arbitrary, as long as the material meets the requirements.
  • the length-changing protective cover element is made of a plastic material, a plastic compound and/or a mixture thereof, wherein the plastic material, the plastic compound and/or the mixture thereof is foldable, textile, inherently rigid and/or thermoplastic.
  • the length-adjustable protective covering element is made of a strong, durable fabric or a light-weight foil.
  • the material is a thermoplastic material, a thermoplastic compound and/or a thermoplastic mixture thereof.
  • the preferred thermoplastics include, for example, but not exclusively, acrylonitrile butadiene styrene (ABS), polyamide (PA), polylactide (PLA), polymethyl methacrylate (PMMA), polycarbonate (PC), polyethylene (PE), terephthalate (PT), polypropylene (PP), polystyrene (PS), polyetherketone (PEIK) and polyvinyl chloride (PVC), as well as corresponding copolymers and/or mixtures.
  • ABS acrylonitrile butadiene styrene
  • PA polyamide
  • PLA polylactide
  • PMMA polymethyl methacrylate
  • PC polycarbonate
  • PE polyethylene
  • PT polypropylene
  • PS polystyrene
  • PEIK polyetherketone
  • PVC polyvinyl chloride
  • the material from which the frame element is made is fundamentally arbitrary, as long as the material meets the requirements.
  • the frame element is preferably made of an inherently rigid plastic material, an inherently rigid plastic compound, a fiber composite, a metal, in particular aluminum, a metal compound, a metal alloy, in particular stainless steel or stainless steel and/or a mixture thereof.
  • the positioning edge is straight and in an angular range of 80° to 100°, preferably in an angle of 80°, 81°, 82°, 83°, 84°, 85°,
  • the positioning edge is preferably formed perpendicular to the first longitudinal edge at an angle of 90°.
  • the positioning of the protective covering element which can be changed in length, in relation to the frame element takes place in a simple and rapid manner, in particular if the point at which the first suitable point of the holding means is aligned on the positioning edge is arbitrary . This is achieved by a straight positioning edge, which is formed at the angle between 80° and 100° mentioned above.
  • this distance is arbitrary for a first alignment of the frame element with the protective cover element variable in length. If the included angle is greater than 90°, the distance between the positioning edge and the guide edge towards the fastening means increases. This has the advantage that the user connecting or disconnecting the protective covering element variable in length and the frame element is introduced to the final movement effecting or releasing the connection. If, on the other hand, the angle is less than 90°, the distance between the positioning edge and the guide edge towards the fastener becomes smaller. Such a configuration increases the security of the connection of the variable-length protective cover element and the frame element.
  • straight refers to the property of an edge to run along the shortest distance between two points. In particular, an edge that has no curvature and no corners is straight.
  • the positioning edge is arranged in the middle third of the fastening means.
  • the positioning edge is preferably arranged centrally.
  • the arrangement of the positioning edge along the fastening means determines whether and to what extent it is possible for the assembly aid to protrude laterally over the fastening means and form an overhang.
  • the lateral protrusion of the assembly aid and the associated overhang increases security against unintentional detachment of the holding means and the fastening means from one another.
  • the arrangement of the positioning edge in the middle third represents a good compromise between security and effort.
  • the guiding edge protrudes laterally beyond the fastening means.
  • the lateral protrusion forms an additional safeguard against unintentional loosening of the fastening means and the holding means.
  • projecting laterally beyond the fastener means that the assembly aid and/or the guide edge runs at least partially in an area of the first longitudinal edge in which the fastener is not arranged, with the assembly aid and/or the guide edge extending from the first longitudinal edge is spaced.
  • the guide edge dictates the direction of movement of the frame element and the length-adjustable protective cover element relative to one another.
  • the leading edge specifies in particular the movement which is necessary for connecting the holding means and the fastening means. This connection is particularly secure against unintentional loosening when the movement has several different directional components.
  • at least one directional component preferably several, should be present, which is perpendicular to the direction in which the protective cover extends. Even more preferably, all directional components are perpendicular to the direction in which the protective cover is pulled out.
  • Such a change in the direction of movement can be given to the guide edge, for example by a curved design.
  • the direction of movement changes smoothly.
  • the protective cover element which can be changed in length, cannot be damaged by the assembly aid.
  • an abrupt change in the direction of movement is to be specified by the leading edge, it has two sections which meet and which are straight.
  • the straight sections enclose an angle which is not 180°. It is preferably less than 180°.
  • Such a configuration encourages the user mounting or dismounting the protective cover to pause. In this case, for example, additional or other steps can be carried out. An example is given elsewhere in this application.
  • curved means a local, gradual deviation of the lead line from a straight line.
  • the assembly aid comprises a clamping edge between the guide edge and the fastening means.
  • the clamping edge serves to clamp the protective cover element, which can be changed in length.
  • the length-variable protective cover member is clamped between the clamping edge and the first longitudinal edge of the frame member.
  • the protective cover element variable in length is guided along the leading edge to its final position in which the fastening means and the holding means are connected to one another.
  • a movement of the holding means and the fastening means relative to one another should be prevented as far as possible. This movement can cause accidental detachment and/or damage to the frame member and/or the variable length protective cover member.
  • the clamping edge is configured parallel to the first longitudinal edge and is spaced apart with a clamping edge distance from the first longitudinal edge, the clamping edge distance being less than or equal to the material thickness of the protective cover element variable in length.
  • an object is clamped in particular when it is placed at a distance which is less than or equal to its dimensions. It is clear to a person skilled in the art that the distance must be smaller than the object to be clamped, in particular if the object to be clamped is flexible. In this case, the more flexible the material of the protective cover element that can be changed in length, the smaller the distance between the clamping edges must be compared to the material thickness.
  • the clamping edge spacing is preferably at most 99.5%, at most 99%, at most 98%, at most 97%, at most 96%, at most 95%, at most 90%, at most 85%, at most 80%, at most 75%, at most 70% or less the material thickness.
  • Typical material thicknesses of the protective element variable in length are known to the person skilled in the art.
  • the material thickness is preferably 0.1 mm to 1 mm.
  • At least one prestressing means is arranged on the first longitudinal edge.
  • a required prestressing force is necessary in order to achieve the necessary sealing of the moving machine parts from the environment.
  • the pre-tensioning force contributes significantly to the required and intended stability of the protective cover.
  • the fastening means with assembly aid and the holding means alone, depending on the arrangement do not generate the prestressing force that meets the requirements in all possible applications.
  • the arrangement of a prestressing means on the first longitudinal edge makes it possible, in conjunction with the fastening means and the assembly aid, to increase the required prestressing force to the required level.
  • the holding means and the fastening means are preferably designed in such a way that, when the fastening means and holding means are connected according to the invention, the fastening means is guided by the holding means from a first side of the protective cover element that is variable in length to a second side of the protective cover element that is variable in length.
  • the biasing means bears against the first side of the length-adjustable protective cover member. Since the fastener with the mounting aid and the Vorspannmit tel are in the same plane, the variable-length protective cover member is clamped between them. Through a suitable design of the length-variable protective cover element, this clamping generates a prestressing force, which is transmitted to the frame element.
  • the pre-tensioning means has a mean pre-tensioning height
  • the fastening means has a fastening means height
  • the assembly aid has an assembly aid height
  • the mean pre-tensioning height being greater than the means of fastening height and/or the mean pre-tensioning height being smaller than the sum of the mean height of the fastening means and the height of the assembly aid is.
  • the first contact of the frame element with the protective cover element which is variable in length, is in the region of the positioning edge on the assembly aid takes place and not in the area of the prestressing means. This is ensured by the fact that the sum of the mounting aid height and the fastening center height is greater than the prestressing center height.
  • the protective cover element which can be changed in length, first comes into contact with the prestressing means and only then with the fastening means.
  • the user mounting or dismounting the protective cover is preferably encouraged to pause shortly before the step of applying the prestressing force by the prestressing means by means of a suitable design of the guide edge described elsewhere.
  • the fastening means height is preferably 1 mm to 6 mm, preferably 1.25 mm, 1.5 mm,
  • the mounting aid height is 5 mm to 20 mm, preferably at least 6 mm, at least 6.5 mm, at least 7 mm, at least
  • the terms “height of fasteners”, “height of assembly aids” and “height of prestressing means” refer to the respective extension of the respective means or aids in the direction perpendicular to the first longitudinal edge.
  • the expansion of the fastening means and the pretensioning means begins directly at the first longitudinal edge.
  • the expansion of the assembly assistant begins at the upper edge of the fastener. This edge can also be thought of as an imaginary line.
  • the first longitudinal edge preferably has three fastening means and two prestressing means, which are alternately attached starting with the fastening means. are arranged.
  • the fastener has a fastener width and the assembly aid has an assembly aid width, with the amount of the assembly aid width deviating less than 10% from the amount of the fastener width.
  • the fastening means has a fastening means width and the holding means has a holding means width. Due to the desired positive and/or non-positive connection of fastening means and holding means, it is necessary to match the width of the fastening means and the width of the holding means.
  • the holding means is first guided over the assembly aid. For this it is necessary that the width of the mounting aid is the same as or less than the width of the fastener.
  • the assembly aid is too small, it is not obvious to the user disassembling or assembling the protective cover that the protective cover element, which can be changed in length, is intended to be guided with the retaining means along the guide edge after the widest point of the assembly aid has been passed . It has therefore turned out to be optimal if the amount of the assembly aid width is less than 10%, preferably less than 9.5%.
  • fastener width the width of the holding means
  • the preceding definition relates to the installed state. Unaffected by this, the holding means has a holding means width in the dismantled state.
  • the protective cover element which is variable in length
  • the protective cover element is a fold element, with the at least one holding means being arranged on a fold or on a fold flank.
  • a lock designed as a fold element within the meaning of the invention, limits the maximum length in the pull-out direction of the fold element. In principle, it is arbitrary how the length-changing protective covering element and/or the barrier is designed, but the use of pleated elements in protective coverings is widespread in the prior art.
  • the term "pleat member” refers to a length-variable protective cover member in which pleats are formed.
  • the folds enclose an angle and the change in length of the length-adjustable protective covering element is effected entirely or to a significant extent by changing this angle.
  • the fold element has alternating machine-facing and machine-away-facing folds.
  • the fold element only has folds pointing towards the machine or pointing away from the machine.
  • the holding means can be arranged both in a fold pointing towards the machine and in a fold pointing away from the machine.
  • pleat flank refers to the area of the pleat element enclosed by two adjacent pleats or between a pleat and an edge.
  • the fold surface can be straight or curved.
  • the fold flank has at least one kink. If the fold flank has a kink, it is easier for the user installing or removing the protective cover to connect the fold element to the support frame. In particular, if the support frame includes a biasing element, the clamping of the folding element between the assembly aid and the Biasing means facilitated. At the same time, the fold element is relieved at this point, so that the prestressing element does not rub permanently on the fold element.
  • kink refers to a sudden change in the direction of the fold element, which, adjacent to the fold, does not contribute or only to a minor extent to the change in length of the variable protective covering element.
  • the at least one frame element includes a cover leg.
  • the cover leg preferably engages behind the cover leg of an adjacent frame element to form a closed front.
  • the cover leg can also reach behind part of the machine or another part of the frame in order to form a closed front with it.
  • the closed front formed in this way is closed regardless of the current length of the protective cover. It is known to the person skilled in the art that the length of the closed front itself can be changed due to the telescopic engagement behind it.
  • the covering leg is preferably fastened to the frame element at a second longitudinal edge opposite the first longitudinal edge. It is even more preferred in an angle range of 80° to 100°, preferably in an angle of 80°, 81°, 82°, 83°, 84°, 85°, 86°, 87°, 88°,
  • the cover leg is preferably made of an inherently rigid plastic material, an inherently rigid plastic compound, a fiber composite material, a metal, in particular aluminum, a metal compound, a metal alloy, in particular stainless steel or stainless steel and/or a mixture from it. More preferably, the cover leg is shaped in such a way that it achieves a wiping effect, in particular a strong wiping effect. This offers the advantage that the protective cover is not only impermeable to liquids and dust, but also keeps out heavy soiling, such as hot and/or sharp-edged chips. As a result, the machine and/or its moving parts are reliably protected even when heavily soiled.
  • At least one frame element and the cover leg are designed in one piece, in two parts or in multiple parts, with these being detachable in the case of a two-part or multi-part design, for example by gluing, sewing and/or riveting, or are inextricably connected, for example by welding.
  • the type of connection is of secondary importance.
  • a machine comprising the protective cover according to the invention is also proposed.
  • machine is known to a person skilled in the art and relates to a machine to be protected, such as a machine tool.
  • Fig. 1A is a front plan view of a frame member; 1B shows a front plan view of a fastening means with an assembly aid in detail;
  • FIG. 1C shows a front plan view of a section of the front side of a fastening means with an assembly aid and a pretensioning means in detail
  • FIGS. Figures 2A and 2B are isometric views of first and second embodiments of a variable length protective cover element
  • FIG. 3 is an isometric view of a protective cover
  • Figs. Figures 4A through 4E is an isometric view of a sequence of movements for connecting a protective cover member that is variable in length and a frame member.
  • FIG. 1A shows a front plan view of a frame element 3000.
  • the frame element 3000 has a first longitudinal edge 3100 and, opposite the first longitudinal edge 3100, a second longitudinal edge 3500.
  • the frame element 3000 includes a support profile 3600 on each side. With the two support profiles 3600, the frame element 3000 is supported laterally.
  • On the first longitudinal edge 3100 three fastening means 3200 are arranged in this exemplary embodiment.
  • An assembly aid 3300 is arranged on each fastening means 3200 .
  • two prestressing means 3400 are arranged on the first longitudinal edge 3100 .
  • the fastening means 3200 and the biasing means 3400 are arranged alternately.
  • FIG. 1B is an enlargement of portion B of Figure 1A labeled B.
  • Fig. 1B therefore shows the front plan view of the fastening means of supply 3200 with the assembly aid 3300, which is in the section from B is located.
  • the fastener 3200 has been completed with a dashed line to distinguish it from the assembly aid 3300 .
  • the fastener 3200 has a fastener width 3220. This fastener width 3220 corresponds to the spatial expansion of the fastener 3200 parallel to the first longitudinal edge 3100.
  • the assembly aid 3300 has an assembly aid width 3320.
  • the assembly aid 3300 includes a positioning edge 3330. In this exemplary embodiment, the positioning edge 3330 is arranged centrally on the fastening means 3200.
  • the positioning edge 3330 encloses an angle 3331 with the fastening means 3200 .
  • the angle 3331 is 90° and the positioning edge 3330 is straight.
  • a clamping edge 3350 is arranged between the fastening means 3200 and the guide edge 3340 .
  • a dashed line is also drawn in for optical separation of the upper edge 3360, the leading edge 3340 and the clamping edge 3350.
  • Fig. IC is an enlargement of marked C from section C of Fig. 1A. 1C therefore shows the frontal plan view of the assembly aid 3300, as well as the section of the fastening means 3200 and the prestressing means 3400, which are located in section B, in detail.
  • the assembly aid 3300 has an assembly aid height 3310, which is designated IIMH elsewhere.
  • the fastener 3200 has a fastener center height 3210, which is designated ILBM elsewhere.
  • the pre-tensioning device 3400 has a bias center height 3410, designated hv M elsewhere.
  • the prestressing center height 3410 is greater than the fastening center height 3210. It can also be seen that the sum of the fastening center height 3210 and assembly aid height 3310 is greater than the prestressing center height 3410.
  • the clamping edge 3350 has a clamping edge spacing 3351.
  • the Figs. 2A and 2B show an isometric view of a first and second embodiment of a variable-length protective covering member 2000.
  • the first embodiment shown in FIG. In this fold 2200 three holding means 2100 are arranged.
  • the holding means 2100 are in the form of elongated slots.
  • the protective covering element 2000 variable in length has two fold flanks 2300 which each extend between the fold 2200 and an edge of the protective covering 2000 variable in length.
  • the second embodiment shown in FIG. 2B of the protective covering element 2000 variable in length also has a fold 2200 with three holding means 2100 arranged thereon.
  • the length-variable protective cover element 2000 comprises two fold flanks 2300, which extend between the fold 2200 and two edges of the length-variable protective cover.
  • One of the two fold flanks 2300 has a kink 2330.
  • FIG. 3 shows an isometric view of a protective cover 1000.
  • the protective cover 1000 comprises a protective cover element 2000 variable in length and five frame elements 3000.
  • Each frame element 3000 comprises a cover leg 3700.
  • the cover leg 3700 is arranged on a second longitudinal edge 3500.
  • the cover leg 3700 has a folded edge 3730 on the opposite edge.
  • Four of the five cover legs 3700 each reach behind the adjacent frame element 3000 with their folds 3730 in the area of its covering leg 3700 and in this way form a closed front.
  • the fold 3730 offers the advantage that a contact pressure is exerted, so that the cover legs 3700 have an at least partial and/or short-term absolute or increased tightness of the closed front even when the protective cover 1000 is in the extended state, and thus the advantages mentioned elsewhere exhibit.
  • the frame elements 3000 are connected to the protective cover element 2000 variable in length via the holding means and fastening means, not shown, for force transmission and for movement transmission.
  • the protective cover element 2000 which can be changed in length, comprises nine folds 2200 and ten flanks 2300.
  • Figs. 4A through 4E show an isometric representation of a movement sequence for connecting a length-adjustable protective cover member 2000 and a frame member 3000.
  • Fig. 4A shows the length-adjustable protective cover member 2000 and the frame member 3000 in the spatially separated state.
  • the length-changeable protective cover member 2000 and the frame member 3000 are already roughly aligned.
  • the length-variable protective covering element 2000 is first moved in the direction of the first frame element 3000, as indicated by the arrow in FIG. 4A.
  • Figure 4B the length-adjustable protective cover member 2000 and the frame member 3000 are already in contact.
  • the frame element shown has three fastening means with assembly aids 3300 , each with a positioning edge 3330
  • the protective covering element 2000 which is variable in length, has three holding means 2100 .
  • a first suitable point 2130 of the holding means 2010 was brought into contact with one of the positioning edges 3330 of the assembly aid 3300 in each case. This ensured correct alignment of the length-adjustable protective cover member 2000 with respect to the frame member 3000. provides, and therefore complex positioning work are no longer necessary.
  • a part of the assembly aid 2100 was guided by the holding means 2130 from a first side 2400 of the protective covering element 2000 variable in length to a second side 2500 of the protective covering element 2000 variable in length.
  • the assembly aid 3300 is covered in this part by the variable-length protective cover element 2000, which was indicated by the dashed line. Subsequently, the protective cover element 2000 variable in length is guided further towards the frame element 3000 at the first suitable location 2130 along the positioning edges 3300, as indicated by the arrow in FIG. 4B. The movement of the length-changing protective cover element 2000 towards the frame element 3000 is continued until a second suitable location 2140 of the three holding means 2100 comes into contact with a respective leading edge 3340 of the three assembly aids 3300, as in FIG. 4C shown. Up to this point in the movement, two biasing means 3400 located on the frame member 3000 have already come into contact with the protective cover member 2000 of variable length.
  • the biasing means 3400 is clamped behind the variable-length protective covering element 2000 and remains on the first side 2400. It is thus on a different side of the variable-length protective covering element 2000 than the fastening means 3200.
  • the variable-length protective covering element 2000 has in this embodiment, two fold flanks 2300. Seen from the viewer, the two prestressing means 3400 are located behind both fold flanks 2300, which is indicated by a dot-dash line. After the leading edge 3340 of the assembly aids 3300 has come into contact with one of the holding means 2100 at the second suitable point 4140, the second suitable points 4140 and thus the protective cover element 2000, which is variable in length, are then guided along the leading edges 3340. through the Guided by the leading edge 3340, the length-changing protective cover element 2000 slides in a parallel main direction along the first longitudinal edge 3100, as indicated by the arrow in FIG. 4D.
  • the guidance along the leading edge 3340 takes place until the connection between the fastening means 3200 and the holding means 2100 has been received, as shown in FIG. 4E.
  • the protective cover element 2000 which can be changed in length, is clamped between three clamping edges 3350, which are arranged on the assembly aid 3300, and the first longitudinal edge 3100. In this way, accidental detachment of the protective cover element 2000 and the frame element 3000 variable in length is prevented.
  • the two prestressing means 3400 continue to rest on the first side 2400, while the three fastening means 3200 rest on the second side 2500.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casings For Electric Apparatus (AREA)
  • Auxiliary Devices For Machine Tools (AREA)

Abstract

L'invention concerne un couvercle de protection (1000) comprenant au moins un élément de couvercle de protection (2000) qui a une longueur variable et au moins un élément de cadre (3000). L'élément de couvercle de protection (2000) ayant une longueur variable a au moins un moyen de maintien (2100), et l'élément de cadre (3000) a un premier bord longitudinal (3100). Au moins un moyen de fixation (3200) est disposé sur le premier bord longitudinal (3100), et le moyen de maintien (2100) et le moyen de fixation (3200) peuvent être reliés de manière libérable, en particulier à force et/ou par complémentarité de forme, une aide à l'installation (3300) étant disposée sur le moyen de fixation (3200), ladite aide à l'installation (3300) comprenant un bord de positionnement (3330) et un bord de guidage (3340), et le bord de positionnement (3330) et le bord de guidage (3340) étant des bords sensiblement opposés sur l'aide à l'installation (3300).
EP22729485.7A 2021-05-27 2022-05-13 Couvercle de protection ayant une aide à l'installation Pending EP4347179A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021113769.1A DE102021113769A1 (de) 2021-05-27 2021-05-27 Schutzabdeckung mit Montagehilfe
PCT/EP2022/063017 WO2022248246A1 (fr) 2021-05-27 2022-05-13 Couvercle de protection ayant une aide à l'installation

Publications (1)

Publication Number Publication Date
EP4347179A1 true EP4347179A1 (fr) 2024-04-10

Family

ID=82019173

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22729485.7A Pending EP4347179A1 (fr) 2021-05-27 2022-05-13 Couvercle de protection ayant une aide à l'installation

Country Status (6)

Country Link
EP (1) EP4347179A1 (fr)
JP (1) JP2024521764A (fr)
KR (1) KR20240013143A (fr)
CN (1) CN117396304A (fr)
DE (1) DE102021113769A1 (fr)
WO (1) WO2022248246A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2531876T3 (es) 2010-09-28 2015-03-20 Arno Arnold Gmbh Cubierta de protección telescópica
DE102011113388A1 (de) 2011-09-16 2013-03-21 Arno Arnold Gmbh Schutzabdeckung
JP6383201B2 (ja) * 2014-07-22 2018-08-29 株式会社ナベル 保護板部材付蛇腹
DE202015001696U1 (de) 2015-03-05 2016-06-09 Hema Maschinen- Und Apparateschutz Gmbh Längenvariable Schutzabdeckung mit Faltenelement
DE202016103836U1 (de) 2016-07-15 2016-08-02 Arno Arnold Gmbh Schutzabdeckung mit einem einklickbaren Stützrahmen

Also Published As

Publication number Publication date
DE102021113769A1 (de) 2022-12-01
WO2022248246A1 (fr) 2022-12-01
JP2024521764A (ja) 2024-06-04
CN117396304A (zh) 2024-01-12
KR20240013143A (ko) 2024-01-30

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