Abstract
A protective cover having at least one protective-cover element adjustable in length and having at least one frame element, the protective-cover element adjustable in length having at least one holding means, the frame element having a first longitudinal edge, and at least one fastening means being disposed at the first longitudinal edge, and the holding means and the fastening means being connectable in a detachable manner, in particular a force-fitting and/or form-fitting manner. An installation aid is disposed on the fastening means, the installation aid comprising a positioning edge and a guide edge, and the positioning edge and the guide edge essentially being opposite edges at the installation aid.
Claims
1. A protective cover having at least one protective-cover element adjustable in length and having at least one frame element, the protective-cover element adjustable in length having at least one holding means, the frame element having a first longitudinal edge, and at least one fastening means being disposed at the first longitudinal edge, and the holding means and the fastening means being connectable in a detachable manner, in particular a force-fitting and/or form-fitting manner, wherein an installation aid is disposed at the fastening means, the installation aid comprising a positioning edge and a guide edge, and the positioning edge and the guide edge essentially being opposite edges at the installation aid.
2. The protective cover according to claim 1, wherein the positioning edge is straight and formed at an angle of 80? to 100? to the first longitudinal edge.
3. The protective cover according to claim 1, wherein the positioning edge is disposed in the middle third of the fastening means.
4. The protective cover according to claim 1, wherein the guide edge protrudes laterally from the fastening means.
5. The protective cover according to claim 1, wherein the entirety or at least sections of the guide edge are straight and/or curved.
6. The protective cover according to claim 1, wherein the installation aid comprises a clamping edge between the guide edge and the fastening means.
7. The protective cover according to claim 6, wherein the clamping edge is parallel to the first longitudinal edge and is spaced apart from the first longitudinal edge via a clamping-edge space, the clamping-edge space being smaller than or equal to the material thickness of the protective-cover element adjustable in length.
8. The protective cover according to claim 1, wherein at least one pre-stress means is disposed at the first longitudinal edge.
9. The protective cover according to claim 8, wherein the pre-stress means has a pre-stress-means height, the fastening means has a fastening-means height and the installation aid has an installation-aid height, and the pre-stress-means height being greater than the fastening-means height and/or the pre-stress-means height being smaller than the sum of the fastening means height and the installation-aid height.
10. The protective cover according to claim 8, wherein one to twenty fastening means and one to ten pre-stress means are disposed at the first longitudinal edge, the fastening means and the pre-stress means being disposed in a regular or irregular, in particular alternating, sequence.
11. The protective cover according to claim 1, wherein the fastening means has a fastening-means breadth and the installation aid has an installation-aid breadth, the value of the installation-aid breadth deviating less than 10% from the value of the fastening-means breadth.
12. The protective cover according to claim 1, wherein the protective-cover element adjustable in length is a pleated element, the holding means being disposed on a pleat or on a pleat flank.
13. The protective cover according to claim 12, wherein the pleat flank has a kink.
14. The protective cover according to claim 1, wherein the frame element comprises a cover leg.
15. The protective cover according to claim 14, wherein the frame element having the cover leg is made in one, two or multiple pieces.
16. A machine comprising the protective cover according to claim 1.
Description
[0057] Further details, features and advantages of the disclosure are derived from the following description of the preferred exemplary embodiments in conjunction with the dependent claims. In this context, the corresponding features can be realized on their own or several in combination with each other. The disclosure is not limited to the exemplary embodiments. The exemplary embodiments are shown schematically in the figures. The same reference numerals in the individual figures describe elements which are the same or the same in function or correspond to each other regarding their function.
[0058] As presented in detail
[0059] FIG. 1A shows a front top view of a frame element:
[0060] FIG. 1B shows a detailed front top view of a fastening means having an installation aid;
[0061] FIG. 1C shows a detailed front top view of a section of the front side of a fastening means having an installation aid and a pre-stress means:
[0062] FIGS. 2A and 2B show an isometric view of a first and a second embodiment of a protective-cover element adjustable in length:
[0063] FIG. 3 shows an isometric view of a protective cover: and
[0064] FIG. 4A to FIG. 4E show an isometric view of a movement sequence for connecting a protective-cover element adjustable in length and a frame element.
[0065] FIG. 1A shows a front top view of a frame element 3000. Frame element 3000 has a first longitudinal edge 3100 and, opposite first longitudinal edge 3100, a second longitudinal edge 3500. Frame element 3000 has a carrier profile 3600 on each side. By means of both carrier profiles 3600, frame element 3000 is laterally supported. In this exemplary embodiment, three fastening means 3200 are disposed at first longitudinal edge 3100. At each fastening means 3200, an installation aid 3300 is disposed. Moreover, two pre-stress means 3400 are disposed on first longitudinal edge 3100. Fastening means 3200 and pre-stress means 3400 are alternatingly disposed.
[0066] FIG. 1B is an enlargement of section B of FIG. 1A referenced with a B. FIG. 1B therefore shows the front top view on fastening means 3200 having installation aid 3300, which is located in section B. Fastening means 3200 has been completed with a dashed line to show the boundary to installation aid 3300. Fastening means 3200 has a fastening-means breadth 3220. This fastening-means breadth corresponds to the spatial expansion of fastening means 3200 parallel to first longitudinal edge 3100. Installation aid 3300 has an installation-aid breadth 3320. Installation aid 3300 comprises a positioning edge 3330. In this exemplary embodiment, positioning edge 3330 is disposed centrally at fastening means 3200. Positioning edge 3330 encloses an angle 3331 with fastening means 3200. In this exemplary embodiment, angle 3331 is 90?, and positioning edge 3330 is straight. Furthermore, installation aid 3300 comprises a guide edge 3340. Between guide edge 3340 and positioning edge 3330, an upper edge 3360 is disposed. Starting at upper edge 3360, guide edge 3340 has an initially consistent curvature. Subsequently, guide edge 3340 begins to curve more prominently, with the strongest curvature in the area of the broadest extension. At this position, guide edge 3340 forms a lug and subsequently extends towards fastening means 3200. In this area, guide edge 3340 is straight, although it is formed in two sections having slightly different directions. When they converge, these two sections form a corner. Between fastening means 3200 and guide edge 3340, a clamping edge 3350 is disposed. To optically separate upper edge 3360, guide edge 3340 and clamping edge 3350, a dashed line has also been included.
[0067] FIG. 1C is an enlargement of section C of FIG. 1A referenced with a C. FIG. 1C therefore shows the front top view on installation aid 3300, and details of the section of fastening means 3200 and pre-stress means 3400, which are located in section B. Installation aid 3300 has an installation-aid height 3310, which is referred to as h.sub.MH elsewhere. Fastening means 3200 has a fastening-means height 3210, which is referred to as h.sub.BM elsewhere. Pre-stress means 3400 has a pre-stress-means height 3410, which is referred to as h.sub.VM elsewhere. As is easily recognizable, pre-stress-means height 3410 is greater than fastening-means height 3210. Furthermore, it can be seen that the sum of fastening-means height 3210 and installation-aid height 3310 is greater than pre-stress-means height 3410. Clamping edge 3350 has a clamping-edge space 3351.
[0068] FIGS. 2A and 2B show an isometric view of a first and a second embodiment of a protective-cover element 2000 adjustable in length. In the first embodiment shown in FIG. 2A, protective-cover element 2000 adjustable in length has a pleat 2200. In this pleat 2200, three holding means 2100 are disposed. Holding means 2100 are designed as oblong slots. Moreover, protective-cover element 2000 adjustable in length has two pleat flanks 2300 which each extend between pleat 2200 and an edge of protective-cover element 2000. The second embodiment shown in FIG. 2B of protective-cover element 2000 also has a pleat 2200 having three holding means 2100 disposed thereon. Equally, protective-cover element 2000 adjustable in length has two pleat flanks 2300 which extend between pleat 2200 and two edges of the protective-cover element adjustable in length. One of two pleat flanks 2300 has a kink 2330.
[0069] FIG. 3 shows an isometric view of a protective cover 1000. Protective cover 1000 comprises a protective-cover element 2000 adjustable in length and five frame elements 3000. Each frame element 3000 comprises a cover leg 3700. Cover leg 3700 is disposed at a second longitudinal edge 3500. At the opposite edge, cover leg 3700 has a chamfer 3730. Four of five cover legs 3700 each engage behind adjacent frame element 3000 with their chamfers 3730 in the area of their cover leg 3700 and in this manner form a closed front. Chamfer 3730 provides the advantage of a pressing force being exerted so that cover legs 3700 have an at least partial and/or short-term absolute or increased seal of the closed front even in the extracted state and thus have the advantages describe above. Frame elements 3000 are connected to protective-cover element 2000 adjustable in length via the holding means (not shown) and fastening means (not shown) for transferring force and movement. Protective-cover element 2000 adjustable in length comprises nine pleats 2200 and ten flanks 2300 in the shown embodiment.
[0070] FIGS. 4A to 4E show an isometric view of a movement sequence for connecting a protective-cover element 2000 adjustable in length and a frame element 3000. FIG. 4A shows protective-cover element 2000 adjustable in length and frame element 3000 in the spatially separate state. Protective-cover element 2000 adjustable in length 2000 and frame element 3000 are already roughly directed towards each other. In order to establish the connection according to the disclosure, protective-cover element 2000 adjustable in length is first moved towards first frame element 3000, as indicated by the arrow in FIG. 4A. In FIG. 4B, protective-cover element 2000 and frame element 3000 are already contacted. In this embodiment, the shown frame element has three fastening means having installation aids 3300, each having a positioning edge 3330, and protective-cover element 2000 adjustable in length has three holding means 2100. A first suitable position 2130 of holding means 2100 has been contacted with one of positioning edges 3330 of installation aid 3300 in each case. Owing to this, the correct alignment of protective-cover element 2000 adjustable in length in relation to frame element 3000 has been ensured, whereby complicated positioning work is no longer required. A part of installation aid 3300 has been guided from a first side 2400 of protective-cover element 2000 adjustable in length to a second side 2500 of protective-cover element 2000 adjustable in length via holding means 2100. Installation aid 3300 is covered by protective-cover element 2000 adjustable in length in this part, which has been indicated by the dashed line. Subsequently, protective-cover element 2000 adjustable in length is guided at first suitable position 2130 along positioning edges 3330 further towards frame element 3000, as indicated by the arrow in FIG. 4B. The movement of protective-cover element 2000 adjustable in length towards frame element 3000 is continued until a second suitable position 2140 of each of the three holding means 2100 comes into contact with a guide edge 3340 of the three installation aids 3300 in each case, as shown in FIG. 4C. Until this point of the movement, two pre-stress means 3400, which are disposed on frame element 3000, have already come into contact with protective-cover element 2000 adjustable in length. Pre-stress means 3400 is clamped behind protective-cover element 2000 adjustable in length and remains on first side 2400. Consequently, it is on a different side of protective-cover element 2000 adjustable in length than fastening means 3200. Protective-cover element 2000 adjustable in length has two pleat flanks 2300 in this embodiment. From the observer's point of view, two pre-stress means 3400 are located behind both pleat flanks 2300, which is indicated by a chain dotted line. After each guide edge 3340 of installation aid 3300 has come into contact with one of the holding means 2100 at second suitable position 2140, second suitable positions 2140 and thus protective-cover element 2000 adjustable in length are guided along guide edge 3340 in the further course of the process. By guiding guide edge 3340, protective-cover element 2000 slides along first longitudinal edge 3100 in a parallel main direction, as indicated with the arrow in FIG. 4D. The guiding along guide edge 3340 continues until the connection between fastening means 3200 and holding means 2100 has been established, as shown in FIG. 4E. For additional safety, protective-cover element 2000 adjustable in length is clamped between three clamping edges 3350, which are disposed at installation aid 3300, and first longitudinal edge 3100. In this manner, an unintentional detachment of protective-cover element 2000 and frame element 3000 is prevented. At rear pleat flank 2300, as viewed by the observer, both pre-stress means 3400 continue to abut against first side 2400, while the three fastening means 3200 abut against second side 2500. This allows rear pleat flank 2300, as viewed by the observer, to be clamped between pre-stress means 3400 and fastening means 3200, which allows transferring the pre-stress force from protective-cover element 2000 adjustable in length to frame element 3000.
