FINGER PROTECTION DEVICE

DE502017017015D1Active Publication Date: 2025-09-11ASSA ABLOY (SCHWEIZ) AG
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Patent Information

Application Number
DE502017017015
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2017-10-09
Publication Date
2025-09-11
Estimated Expiration
2037-10-09

AI Technical Summary

Technical Problem

Existing finger protection devices for pivoting hinged doors with handle bars are difficult to retrofit and require special tools for installation, often damaging components and occupying valuable space, especially when installed on doors with existing grab bars.

Method used

A finger protection device featuring a mounting profile designed as an angle profile with a support leg, fastening leg, and connecting leg, allowing easy attachment and removal without tools, and minimizing space requirements by accommodating existing grab bars.

Benefits of technology

Enables easy installation and removal of the finger protection device on doors with handle bars without damaging components, while optimizing space usage by allowing installation in tight spaces next to grab bars.

✦ Generated by Eureka AI based on patent content.
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Description

TECHNICAL FIELD

[0001] The present invention relates to a finger protection device for a pivoting hinged door. STATE OF THE ART

[0002] Doors pose an increased risk of accidents, especially for small children. Fingers often get trapped between the hinged door leaf and the door frame. The forces acting on the trapped fingers are considerable, and the resulting injuries can be serious.

[0003] Devices designed to protect against accidental finger entrapment are therefore known in the art. One solution involves covering the gap between the secondary closing edge of the pivoting door leaf on the opposite hinge side and the door frame with a textile protective roller blind, which is attached to the door frame on one side and to the pivoting door leaf on the other.

[0004] Such a protective roller blind is disclosed, for example, in GB 2 164 690. The roller blind housing, which contains a shaft for winding the textile roller blind, is equipped with a slotted nut. A V-shaped bracket is attached to the door frame, into which the slotted nut can be inserted to hold the housing. The free edge of the roller blind is provided with a rigid end strip, which is screwed to the door leaf. Thus, only the housing, but not the end strip, can be easily removed.

[0005] DE 20 2008 016 094 U aims to prevent tampering by loosening the screw connections and to simplify installation. For this reason, brackets are provided on both the door frame and door leaf sides, which are screwed onto the door frame or door leaf. The roller blind housing and the free edge of the roller blind are arranged in fastening elements, which can be snapped into these brackets and cover the fastening screws. This device has the disadvantage that the connection can only be removed using a special tool. There is also a risk that the bracket or the fastening element will be destroyed when loosening it. Furthermore, readjustment of the brackets is no longer possible because the fastening elements cover the screws with which the brackets are screwed to the door leaf and frame.

[0006] DE 37 16 654 discloses a finger protection device with a roller blind, where the roller blind housing is screwed to the door frame. The free edge of the roller blind is held in a groove of a mounting profile, which is screwed to the pivoting door leaf. To remove the roller blind, the screws must be loosened and the entire mounting profile removed from the door leaf. Furthermore, this device has the disadvantage that the mounting profile requires a relatively large amount of space.

[0007] This is particularly annoying if the door leaf has a horizontal grab bar. Such grab bars are installed in addition to or as an alternative to door handles, for example, on emergency exits, escape doors, or wheelchair-accessible doors. Depending on their application and function, these grab bars are referred to as panic bars, push-bars, or other terms. The grab bars can usually be pushed down and / or two parts of the grab bars can be pressed together to open the door. The grab bars typically extend across a large part of the door width. Often, they extend across the entire width of the door leaf.

[0008] In the enclosed with this description Figure 2another solution is disclosed. Here, there is a mounting profile 4', also called a fastening strip, which is fastened to the door leaf F. The free end 20 of the roller blind 2 is connected to a hanging profile 3, also called a hanging strip. The hanging profile 3 can be hooked into a rear grip of the mounting profile 4' in order to easily and detachably fasten the roller blind to the pivoting door leaf. This device has the advantage that the roller blind can be easily detached and reattached without special tools, e.g. if the door leaf has to be removed. The disadvantage, however, is that on doors with handle bars, there is often not enough space for installation, since there must usually be a sufficient distance to the handle bar.

[0009] Since handle bars are already pre-assembled on the doors and finger protection devices are added later, certain doors with handle bars cannot be easily retrofitted with the other finger protection devices described above.

[0010] CN 201170043Y discloses a finger protection device with a curved mounting profile. JP 2008231673 A shows a finger protection device with an angled mounting profile. PRESENTATION OF THE INVENTION

[0011] It is therefore an object of the invention to provide a finger protection device for a pivoting hinged door, which can also be used for door leaves with handle bars.

[0012] This object is achieved by a finger protection device having the features according to claim 1.

[0013] The finger protection device according to the invention for a pivoting hinged door comprises a roller blind housing, a roller blind panel with a fastening means, and a mounting profile. It can be fastened to a door frame by means of the housing and to the hinged door by means of the mounting profile. The fastening means of the roller blind panel can be releasably connected to the mounting profile, so that the roller blind panel covers a gap between the door leaf and the door frame when the finger protection device is used as intended. The mounting profile has a support leg for supporting and fastening to the door leaf. According to the invention, the mounting profile is designed as an angle profile and has a fastening leg protruding from the support leg for releasably fastening the fastening means of the roller blind panel.

[0014] Thanks to the protruding mounting leg, the door-side mounting element of the finger guard can be relatively narrow. It finds sufficient space next to an already installed grab bar. This is important because the doors are supplied with grab bars, and finger guards are usually only installed afterward, often years later.

[0015] The roller blind can be attached to the door leaf in a variety of ways. In particular, all of the above-mentioned fastening methods can be used, e.g., screwing or clipping. Preferably, however, the fastening element can be hooked into the fastening leg to secure the roller blind between the door frame and the door leaf. Thanks to the spring-loaded restoring force of the roller blind, the roller blind is thereby tensioned. This solution utilizes the advantages of the design according to Figure 2; ie the roller blind can be easily attached and removed again without the need for special tools and without the risk of damaging individual parts.

[0016] Preferably, the fastening means has a hook, and the mounting profile has a hook receptacle. This is an easy-to-use device.

[0017] The fastening element has a substantially U-shaped cross-section with a first leg, a second leg, and a web connecting the two legs. The first leg serves as a hook, and the second leg is longer than the first. The fastening element has an outward-facing groove into which the end strip is inserted. This facilitates the attachment of the roller blind, is visually appealing, and minimizes its dimensions.

[0018] The mounting leg can be at any angle other than 0° to the support leg. However, it is preferably at least approximately perpendicular to the support leg. This is a space-saving solution.

[0019] In a simple design, the fastening leg is directly adjacent to the support leg.

[0020] An optimal space-saving solution is achieved when the mounting profile features a connecting leg that connects the support leg and the fastening leg. This allows the mounting profile to be installed even in the smallest or no available space between the handle bar and the door leaf edge. In this case, the mounting profile can also be used with a handle bar that extends across the entire width of the door leaf.

[0021] Preferably, the connecting leg is arranged at an angle of greater than 90° to both the support leg and the fastening leg. The space available is particularly optimal when the angle between the connecting leg and the support leg, as well as the angle between the connecting leg and the fastening leg, is approximately 135°.

[0022] The mounting profile is preferably formed in one piece and preferably consists of metal, in particular aluminum, or a plastic. In one embodiment, it is formed in two or more pieces, at least in a longitudinal dimension. This means that it extends from an upper region of the door leaf to the top of the handle bar in one piece and from the underside of the handle bar to a lower region of the door leaf in a second piece. In cross-section, the mounting profile in this embodiment is also preferably formed in one piece, i.e., the two mentioned pieces are each one piece.

[0023] In a preferred embodiment, the fastening leg tapers towards its free end, forming a hook receptacle. This facilitates the hanging of the roller blind or its fastening device.

[0024] Preferably, the hook receptacle forms a straight, but thinner extension of the fastening leg. This facilitates one-piece production and, thanks to the appropriate design of the fastening leg, ensures the tightest possible hooking. Preferred features for the corresponding realization of the latter advantage are listed below.

[0025] Preferably, the hook receptacle has a lug at its free end pointing away from the support leg. Alternatively or additionally, a thicker portion of the fastening leg forms a first stop surface, and the hook receptacle forms a second stop surface for the fastening means. Preferably, the fastening means encloses the hook receptacle. All of these features, individually and in combination, prevent the suspended suspension profile from wobbling.

[0026] In a preferred embodiment, the support leg is guided laterally with its free end face against the handle bar, possibly up to the stop, and then fastened to the door leaf. In other embodiments, the support leg has at least one recess for accommodating the handle bar attached to the door leaf. Such a recess can also be installed on-site by a technician in the support leg. For this purpose, the support leg is preferably designed such that the recess in the leg can be broken out, e.g., as a predetermined breaking point, or can be created by milling or sawing.

[0027] Further embodiments are specified in the dependent claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Preferred embodiments of the invention are described below with reference to the drawings, which are for illustrative purposes only and are not to be construed as limiting. In the drawings: Figure 1 shows a perspective view of a door with a finger protection device; Figure 2 shows a cross section through a part of a door with a finger protection device in a not claimed embodiment; Figure 3 shows a cross section through a part of a door with a finger protection device in a first embodiment according to the invention; Figure 4 shows a cross section through a part of a door with a finger protection device in a second embodiment according to the invention; Figure 5 shows a perspective section of the finger protection device according to Figure 3 ; Figure 6 a perspective view of a mounting profile of the finger protection device according to Figure 3 ; Figure 7 a cross-section through the mounting profile according to Figure 6 and Figure 8 a perspective section of the finger protection device according to Figure 4 . DESCRIPTION OF PREFERRED EMBODIMENTS

[0029] In Figure 1The basic principle of a finger protection device, which also forms the basis for the device according to the invention, is shown. Figure 1 shows a door with a door frame R and a door leaf F. The door hinge is not visible in this figure. As in Figure 1 As can be seen, the finger protection device S extends almost over the entire height of the door leaf F and thus bridges the gap which occurs between the door frame R and the door leaf F when the door is open.

[0030] In Figure 2 An embodiment of a finger protection device is clearly visible. It essentially consists of a roller blind. A shaft 21 is arranged in a roller blind housing 1. A roller blind web 2 is wound onto the shaft 21. The roller blind web 2 is preferably made of a textile material. The shaft 21 is spring-loaded, so that an unwound portion of the roller blind web 2 is automatically retracted.

[0031] The free end of the roller blind 2 is reinforced with an end strip 20. This end strip can be formed by thickening the roller blind 2 or by a wire. Typically, however, the free edge of the roller blind 2 is connected to a metal or plastic strip.

[0032] This end strip 20 is held in a suspension profile 3, which is hook-shaped.

[0033] The roller blind housing 1 is typically attached to the door frame R. For this purpose, a mounting strip 10 is attached to the roller blind housing 1 or integrally connected to it. A mounting profile 4' is screwed to the counterpart of the door, in this case, the door frame R. The fastening screws are designated by reference number 5 in the figures.

[0034] The suspension profile 3 is hooked into the mounting profile 4' to secure the roller blind. Thanks to the restoring force of the roller blind, the roller blind panel 2 is tensioned in any position of the door leaf F when hooked in. It covers the gap between the door frame R and the door leaf F.

[0035] The embodiments of the invention according to the Figures 3 to 8 use the same basic principle. In a first embodiment of the invention according to the Figures 3 and 5 to 7 is instead of the flat mounting profile 4' according to Figure 2 A mounting profile 4, however, is now designed as an angle profile. It is preferably formed in one piece and preferably made of metal or plastic. It preferably extends across the entire width of the roller blind 2, i.e., across approximately the entire height of the door leaf F.

[0036] The roller blind housing 1 and the suspension profile 3 can be designed in the same way as in the embodiment according to Figure 2 . The roller blind 2 is held in place by its end strip 20 in the suspension profile 3. For this purpose, the suspension profile 3 has a base body which has a substantially U-shaped cross-section. A first leg of the U-shaped base body forms a suspension hook. A second, longer leg has a groove 31 at its free end. This groove is designed as a holder. The opening of the groove 31 is located on the side of the second leg opposite the suspended hook and is directed towards the roller blind housing 1. The groove 31 preferably extends over the entire length of the suspension profile 3. The suspension profile 3 is preferably the same length as the mounting profile 4 and the roller blind housing 1. At least the suspension profile 3 and the groove 31 are the same length as the roller track 2. The end strip 20 is inserted into the groove 31 of the suspension profile 3. It is held pivotably therein.

[0037] According to the invention, the mounting profile 4 is designed differently than in the embodiment according to Figure 2 . It is an angle profile. It has, as in Figure 5 clearly visible, has a support leg 40 with which the mounting profile 4 rests on the door leaf and is fastened to the door leaf F by means of screws 5 or other fastening means, e.g. by gluing. In the Figures 6 and 7 the support surface 400 can be seen, with which the support leg 40 rests on the surface of the door leaf F.

[0038] The mounting profile 4 extends from the support leg 40 into a connecting leg 41 and from there into a fastening leg 42. The fastening leg 42 projects outward from the support leg 40, i.e., away from the door leaf surface. It preferably runs at least approximately at a right angle to the support leg 40. The connecting leg 41 runs at an angle to the two remaining legs 40, 42 and thus preferably forms an angle greater than 90°. Preferably, the angle is approximately 135°.

[0039] The support leg 40 can, for example, be formed with plane-parallel surfaces or it can, for example, have decorations and / or mounting aids such as one or more grooves or channels 401 on the side facing outwards, away from the door leaf F. These preferably run in the longitudinal direction of the mounting profile 4.

[0040] The mounting profile 4 has a uniform cross-section across its entire length. It is preferably an extruded profile. The support leg 40 and the connecting leg 41 are preferably of the same thickness. Preferably, the fastening leg 42 is thicker, tapering toward its free end. It tapers in two opposing steps, which are offset from one another. The tapered part of the fastening profile 42 forms a hook receptacle 43 for the fastening means of the roller blind 2, i.e., for the suspension profile 3.

[0041] As in Figure 5 As can be clearly seen, the suspension profile 43 rests with its second leg against a first stop surface 420 of the thicker part of the fastening leg 42. The stop surface 420 is in Figure 6The hook of the suspension profile 3 engages around the free end of the hook receptacle 43, and the first, shorter leg of the suspension profile 43 rests against the surface of the thinner extension of the fastening leg 42 facing away from the roller blind housing 1. The free end of the shorter leg of the suspension profile 3 abuts a shoulder between the hook receptacle 43 and the thicker part of the fastening leg 42. This shoulder forms a second stop surface 432. At the free end of the hook receptacle, a lug 430 is arranged facing the roller blind housing 1. The lug 430 preferably forms a right angle with the remaining hook receptacle 43. The lug 430 preferably extends into the plane defined by the first stop surface 420. The lug 430, together with the two aforementioned stop surfaces 420, 432, prevents the suspended suspension profile 3 from wobbling.The suspension profile 3 can also be fixed in this suspended position with one or more screws 30.

[0042] The mounting profile 4 according to the invention enables the roller blind 2 to be hung perpendicular to the door surface. This makes it easier to hang the blind. The main advantage, however, is that the mounting profile 4 requires relatively little space and can therefore also be arranged next to an existing handle bar H of a door. This is shown in the Figures 3 and 5 clearly visible.

[0043] If the space between the door leaf edge and the handle bar H is even more limited, if the handle bar H extends over the entire width of the door leaf to the door leaf edge or if such an arrangement is desired for other reasons, a solution according to the Figures 4 and 8The contact leg 40 of the mounting profile 4 is provided with a recess 6 into which the end of the handle bar H engages. The recess 6 can extend to the connecting leg 41 or even to the fastening leg 42.

[0044] Recess 6 can be installed at the factory. However, it can also be created on-site by the installer at a suitable location, e.g., by milling or sawing. It can also be pre-treated at the factory as a predetermined breaking point.

[0045] In an embodiment not shown here, the mounting profile 4 is also divided into two pieces, which are arranged above and below the handle bar H. The fastening strip 20 and the roller blind 2 are formed in one piece and thus also extend over that area of the handle bar H which separates the two pieces of the mounting profile 4 from each other.

[0046] The finger protection device according to the invention and the mounting profile according to the invention enable the use of a finger protection device even on door leaves with handle bars. LIST OF REFERENCE SYMBOLS

[0047] 1 Roller blind housing 42 Mounting leg 10 Mounting strip 420 first stop surface 43 Hook holder 2 Roller blind 430 Nose 20 End bar 431 groove 21 Wave 432 second stop surface 433 shoulder 3 Fasteners (hanging profile) 5 screw 30 screw 31 Nut 6 recess 4 Mounting profile R door frame 4' Mounting profile F door leaf 40 Support leg H handlebar 400 Support surface S Finger protection device 401 groove 41 connecting leg

Claims

1. A finger guard device for a pivotable leaf door, wherein the finger guard device has a roller blind housing (1), a roller blind web (2) with a fastening means (3) and a mounting profile (4), wherein the finger guard device is fastenable by means of the housing (1) to a door frame (R) and by means of the mounting profile (4) to the leaf door (F), and wherein the fastening means (3) of the roller blind web (2) can be connected releasably to the mounting profile (4) such that, when the finger guard device is used as intended, the roller blind web (2) covers a gap between the door leaf (F) and the door frame (R), wherein the mounting profile (4) is in the form of an angular profile having a supporting leg (40) for supporting it on and fastening it to the door leaf (F), and having a fastening leg (42, 43) projecting outwardly to the supporting leg (40) away from a door leaf surface, when mounted, for the releasable fastening of the fastening means (3) of the roller blind web (2), characterized in that a free end of the roller blind web (2) is reinforced with an end strip (20), in that the fastening means (3) has a substantially U-shaped cross section with a first leg, a second leg and a web connecting the two legs, wherein the first leg serves for the hanging, and in that the second leg is extended in relation to the first leg and has an outwardly directed groove (31), the end strip (20) being introduced in said groove.

2. The finger guard device as claimed in claim 1, wherein the fastening means (3) can be hung in the fastening leg (42, 43) in order to fasten the roller blind web (2) between door frame (R) and door leaf (F).

3. The finger guard device as claimed in claim 2, wherein the fastening means (3) has a hanging hook and the mounting profile (4) has a hook receptacle (43).

4. The finger guard device as claimed in one of claims 1 to 3, wherein the fastening leg (42) runs at least approximately perpendicularly to the supporting leg (40).

5. The finger guard device as claimed in one of claims 1 to 4, wherein the mounting profile (4) has a connecting leg (41) connecting the supporting leg (40) and the fastening leg (42) to each other.

6. The finger guard device as claimed in claim 5, wherein the connecting leg (41) is arranged at an angle of greater than 90° with respect to the supporting leg (40) and with respect to the fastening leg (42).

7. The finger guard device as claimed in claim 6, wherein the angle between connecting leg (41) and supporting leg (40) is approximately 135°, and the angle between connecting leg (41) and fastening leg (42) is approximately 135°.

8. The finger guard device as claimed in one of claims 1 to 7, wherein the fastening leg (42) tapers toward its free end and forms a hook receptacle (43).

9. The finger guard device as claimed in claim 8, wherein the hook receptacle (43) forms a rectilinear, but thinner extension of the fastening leg (42).

10. The finger guard device as claimed in either of claims 8 and 9, wherein the free end of the hook receptacle (43) has a lug (430) directed away from the supporting leg (40).

11. The finger guard device as claimed in one of claims 8 to 10, wherein a thicker part of the fastening leg (42) forms a first stop surface (420) and the hook receptacle (43) forms a second stop surface (432) for the fastening means (3).

12. The finger guard device as claimed in one of claims 8 to 11, wherein the fastening means (3) surrounds the hook receptacle (43).

13. The finger guard device as claimed in one of claims 1 to 12, wherein the supporting leg has at least one recess (6) for receiving a handlebar (H) fastened to the door leaf (F).

14. The finger guard device as claimed in one of claims 1 to 12, wherein the supporting leg is provided in such a manner that a recess (6) can be knocked out, can be milled or produced therein by sawing, for receiving a handlebar (H) fastened to the door leaf (F).

15. The finger guard device as claimed in one of claims 1 to 12, wherein the length of the mounting profile (4) is formed in at least two pieces for the purpose of arranging the mounting profile (4) on an upper side and a lower side of a handlebar (H) fastened to the leaf door, and wherein the roller blind web (2) extends in one piece over the entire length of the mounting profile (4).