Fastening system and method for locking and detaching a first locking element to or from a second locking element by means of a fastening system
Patent Information
- Application Number
- DE102023123618
- Authority / Receiving Office
- DE · DE
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-09-01
- Publication Date
- 2025-03-06
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
[0001] The invention relates to a fastening system. Furthermore, the invention relates to a method for locking and releasing a first locking element onto and from a second locking element using the fastening system.
[0002] With safety helmets and other protective clothing, it is often necessary to attach and later detach various accessories. These helmet accessories include, for example, light sources such as headlights, visors, radios, and similar items. Attaching the accessory should be as easy as possible, since the wearer is wearing the helmet and therefore cannot see it. Detaching the accessory should also be easy, while preventing accidental detachment. Easy attachment and detachment is also advantageous for other protective clothing, such as bulletproof vests.
[0003] A fastening system for helmets, especially safety helmets, and other protective clothing should therefore allow for easy locking and unlocking while simultaneously preventing unintentional detachment. If the accessories are only held in place by magnets, for example, they can be easily locked, but depending on the strength of the magnets, either removal is difficult or unintentional detachment is likely.
[0004] The object of the invention is therefore to provide a fastening system for safety helmets and clothing that securely and easily locks accessories without making them difficult to remove.
[0005] This task is solved by a fastening system comprising a first locking element and a second locking element, which are designed to be locked together by a movement of the first locking element relative to the second locking element along a locking direction and to assume a locked state. wherein the first locking element comprises at least one pivotally hinged locking element, wherein the second locking element comprises at least one receiving component with a stop wall, wherein the fastening system comprises a return element configured to exert an actuating force on the locking element in order to pivot the locking element towards the receiving component of the second locking element, such that the stop wall of the second locking element limits movement of the locking element and thus of the first locking element in a counter-direction, wherein the counter-direction is opposite to the locking direction, wherein the receiving component and the locking element each comprise at least one release wall which is designed to slide off each other during a movement of the first locking element relative to the second locking element along a release direction in order to pivot the locking element from a locking position against the actuating force into a release position, wherein the release direction is transverse to the locking direction.
[0006] In the fastening system according to the invention, for example, one of the locking elements is connected to a protective helmet or safety vest, and the other locking element is connected to an accessory, such as a visor or a lamp. Advantageously, the locking elements can be easily locked together by moving them towards each other along the locking direction. In the locked position, the locking element is pivoted by the actuating force so that it engages in the receiving component of the second locking element. The stop wall of the receiving component prevents the first locking element from being removed from the second locking element by movement in the opposite direction. In this way, unintentional separation of the locking elements from each other is prevented.
[0007] To release the locking elements, they must be moved against each other along the release direction, which differs from the locking direction and the opposite direction. This causes the release walls of the receiving component and the locking element to slide against each other, and the locking element is moved from its locked position to the release position by this sliding motion. In the release position, the locking element is no longer located in the receiving component and is therefore no longer constrained by the stop wall. Thus, the first locking element can be easily released from the second locking element without the locking element pressing against the stop wall.
[0008] One advantage of this fastening system is that the release direction specifies a particular direction along which the locking elements must be separated. This largely prevents unintentional release without making the release process itself more difficult.
[0009] The release direction runs perpendicular to the locking direction. In this description, "perpendicular" means that the directions running perpendicular to each other are not parallel, but form an angle between them. In particular, the angle between the release direction and the locking direction is at least 20°, more specifically at least 45°, and furthermore, in particular at least 60°. In particular, the release direction and the locking direction are essentially orthogonal to each other.
[0010] The first and second locking elements of the fastening system are locked together in the locked position. In the unlocked position, the first and second locking elements are separated.
[0011] The locking element is pivotally connected to the first locking element, in particular via a solid-state joint. The actuating force acts on the locking element via the return element, pivoting it from the release position to the locking position. Specifically, in the locking position, the locking element protrudes from a surface of the first locking element. In the release position, the locking element is recessed into the surface of the first locking element. To move the locking element from the locking position to the release position, a force must be applied that overcomes the actuating force. This occurs, for example, when the helmet user moves the locking elements relative to each other. The release walls guide the movement of the locking element and ensure that, when moving along the release direction, the locking element experiences a force component opposing the actuating force.
[0012] Preferably, the first locking element has a first contact surface and the second locking element has a second contact surface, wherein the first contact surface, in the locked state, bears at least partially against the second contact surface in a contact direction, the contact direction extending transversely to the locking direction, wherein the locking element is pivotally connected to the first contact surface, and wherein the actuating force includes a force component along the contact direction to pivot the locking element out of a plane of the first contact surface. The contact surfaces ensure that the locking elements bear securely against each other in the locked state and that a defined contact zone is provided. The contact direction extends transversely to the locking direction and / or the opposite direction, and in particular also transversely to the release direction.In particular, the first contact surface and the second contact surface move against each other when the first locking element is locked onto the second locking element along the locking direction. In particular, the first contact surface and the second contact surface move against each other when the first locking element is released from the second locking element along the release direction. The first contact surface and the second contact surface are, in particular, flat surfaces. The locking element projects, in particular, from the first contact surface when it is in the locked position. The contact direction has, in particular, an angle of at least 45° to the locking direction. In particular, the contact direction is substantially orthogonal to the locking direction.
[0013] According to one embodiment, the first contact surface is the top surface of the first locking element and the second contact surface is the bottom surface of the second locking element. A reverse arrangement is also included in the invention. In particular, the first locking element and / or the second locking element is a planar body. The contact surfaces extend, in particular, along a top or bottom surface of the planar body.
[0014] Preferably, the locking element is designed as a spring tongue, and a spring component of the spring tongue is the return element. In other words, by designing the locking element as a spring tongue, the return element is integrated into the locking element. The actuating force is then a spring force acting on the spring tongue. In particular, the locking position of the locking element is a rest position of the spring tongue. In contrast, the spring tongue is deflected from its rest position, particularly in the release position, so that the spring force or actuating force acts on the spring tongue. The spring tongue is articulated to the first locking element, particularly at one rear end, while one front end of the spring tongue is freestanding and points towards the stop wall in the locked state.If the first locking element is moved in the opposite direction to the second locking element, the front of the spring tongue abuts the stop wall and prevents further movement in the opposite direction. The locking element is specifically designed as a leaf spring.
[0015] Preferably, the receiving component is designed as a recess in the second locking element, wherein the recess is, in particular, at least partially form-fitting to the locking element. In particular, the receiving component is incorporated into or arranged on the second contact surface. For example, the receiving component is designed as a recess in the second contact surface. The receiving component is, in particular, incorporated into the second locking element such that, when the first locking element is locked to the second locking element in the locked position, the receiving component is arranged in the contact direction relative to the locking element of the first locking element. The stop wall is, in particular, designed as the front wall of the recess.
[0016] When the locking elements are engaged, the locking element is pressed down, particularly by the second contact surface, and moved into the release position until it is positioned opposite the receiving component. The receiving component provides the space required for the locking element to return to the locked position under its own force. The release wall then prevents the first locking element from moving back in the opposite direction.
[0017] Preferably, the first locking element and the second locking element each have a guide wall extending along the release direction and abutting each other in the locked position. In the locked position, the first locking element and the second locking element are displaceable relative to each other along the guide walls to slide past one another and release the first locking element from the second locking element. The release walls are particularly curved. The guide walls are specifically designed to facilitate the release of the locking elements from one another by providing positive guidance for their movement relative to each other. The locking elements are moved by the guide walls, particularly along a control cam, along which they can be easily released from each other.In particular, the detachment direction extends in an arc shape, so that the arc-shaped detachment walls follow the detachment direction.
[0018] According to one embodiment, one of the guide walls has a guide groove and the other guide wall has a projecting retaining lug, wherein the retaining lug engages in the guide groove in the locked position, the guide groove extending in the release direction, and the length of the guide groove being greater than the length of the retaining lug in the release direction. The retaining lug and the guide groove facilitate the release movement by guiding it along the release direction. Movements perpendicular to the release direction are, in particular, partially prevented. Specifically, the retaining lug and the guide groove prevent the locking elements from moving along the contact direction during the release process.
[0019] According to a further embodiment, one of the guide walls has at least one retaining plate projecting in the locking direction, and the other guide wall has at least one guide recess, wherein the retaining plate is arranged in the guide recess in the locked state, and wherein the guide recess and the retaining plate each extend in the release direction, with one length of the guide recess being greater than one length of the retaining plate in the release direction. Like the guide groove and the retaining lug, the guide recess and the retaining plate guide the release movement and facilitate the separation of the locking elements from one another. In particular, the fastening system comprises two retaining plates and two guide recesses, each arranged offset in the release direction on both sides of the locking element and the receiving component.In particular, the retaining plate and / or the guide recess have beveled side walls. These bevels extend in a plane of the contact surfaces, so that the locking elements are separated from each other during the release movement.
[0020] Preferably, the release wall of the locking element and / or the receiving component is chamfered. A chamfered release wall facilitates the movement of the locking element from the locked position to the release position, as the chamfered walls guide the movement of the locking element during release. In particular, the edges of the locking element and / or the edges of the receiving component are chamfered. Specifically, only the edges extending in the release direction are chamfered. Thus, the stop wall and the front end of the locking element are not chamfered.
[0021] Preferably, the release wall of the locking element and / or the receiving component is inclined in the release direction. Designing the release wall as inclined surfaces in the direction of release guides the movement of the locking element into the release position during the release movement.
[0022] According to one embodiment, the locking element is divided along the locking direction into a first section and a second section, the first section being wider than the second section. The first section and / or the second section, in particular, have a rectangular base. Thus, the locking element has a base consisting of a wider rectangular first section and a subsequent, narrower rectangular second section. According to another embodiment, the first section and the second section are of equal width and each has a rectangular base. The side surfaces of the rectangular sections are, in particular, designed as chamfered release walls.
[0023] Preferably, the locking element is hinged orthogonally to the locking direction. This facilitates pivoting the locking element while locking the locking elements to each other.
[0024] In particular, the first locking element and / or the second locking element comprise a spring element which, in the locked position, exerts a force component in the opposite direction on the first locking element or a force component in the locking direction on the second locking element. The spring element preferably presses the control element towards the stop wall, ensuring that the control element rests securely in the receiving component and that the locking elements are held securely against each other. The spring element is preferably designed as part of the locking element or separately from the locking element. For example, the spring force of a locking element designed as a spring tongue ensures that the force is exerted in the opposite direction on the first locking element.
[0025] Preferably, the fastening system comprises at least one pair of magnets which, in the locked state, exerts an attractive magnetic force between the first locking element and the second locking element. The magnet pair particularly comprises two magnets or one magnet and a magnetizable body. In each case, the magnet pair attracts each other in the locked state and thus additionally holds the locking elements together in the locked state. Preferably, the fastening system comprises two pairs of magnets, which are particularly arranged to the left and right of the locking element and the receiving component.
[0026] According to one embodiment, the return element comprises the magnet pair. In particular, the magnet pair is provided as the return element or a part thereof. Thus, instead of the locking element being designed as a spring tongue, a magnetic pivoting of the locking element can be provided. According to another embodiment, the magnet pair is designed separately from the return element.
[0027] According to one embodiment, at least one of the magnets of the magnet pair has a polarity direction extending from a north pole to a south pole, with the polarity direction extending substantially parallel to the release direction. The polarity direction of the other magnet of the magnet pair extends, in particular, opposite to the polarity direction of the first magnet. In this way, the magnets are securely held together in the locked position. However, when the locking elements are moved relative to each other along the release direction, the north and south poles of the magnets are no longer oppositely oriented to each other, but rather a north pole of the first magnet is in opposition to a north pole of the second magnet, or a south pole of the first magnet is in opposition to the south pole of the second magnet. This generates a repulsive force between the locking elements, which facilitates their separation from one another.
[0028] Preferably, the first or second locking element is fixed to a helmet, and the other locking element is fixed or fixable to a helmet accessory. The helmet accessory is, for example, a visor, a lamp, headphones, a radio, or a similar accessory. The helmet is, in particular, a protective helmet.
[0029] The locking direction extends primarily towards the front of the helmet. Thus, the accessory is moved towards the helmet from the front to secure it. The release direction extends primarily laterally along the circumference of the helmet or head. Thus, the helmet accessory is moved laterally to remove it, while detachment in the opposite direction, i.e., away from the helmet, is prevented. Designing the release direction laterally has the advantage that, if a force is applied laterally to the accessory, it detaches from the helmet without the force being transmitted with full intensity to the helmet and the wearer. For example, if the helmet accessory is a protective visor and the lateral force is caused by a projectile or impact striking the visor, the visor detaches from the helmet without the wearer's head being thrown sideways with the full force of the projectile or impact.
[0030] This prevents serious injuries to the user.
[0031] The problem is further solved by a helmet comprising a helmet accessory and a fastening system according to one of the aforementioned embodiments, wherein the helmet accessory is detachably or fixably attached to the helmet by means of the fastening system. The helmet embodies the same advantages, features, and properties as the fastening system described above.
[0032] Furthermore, the problem is solved by a method for locking and releasing a first locking element onto and from a second locking element by means of a fastening system, in particular according to one of the aforementioned embodiments, wherein the first locking element is moved relative to the second locking element along a locking direction, wherein an actuating force is exerted on a locking element of the first locking element by means of a return element, wherein the actuating force pivots the locking element in the direction of a receiving component of the second locking element and assumes a locking position, wherein a stop wall of the receiving component of the second locking element limits movement of the locking element and thus of the first locking element in a opposite direction, so that the fastening system assumes a locked state, wherein the opposite direction is opposite to the locking direction.wherein, to release the first locking element, the first locking element is moved relative to the second locking element along a release direction, such that a release wall of the locking element slides on a release wall of the receiving component in order to pivot the locking element from the locked position against the actuating force into a release position, the release direction being transverse to the locking direction.
[0033] The process embodies the same advantages, features and properties as the previously described closure system and helmet.
[0034] Further features of the invention will become apparent from the description of embodiments according to the invention, together with the claims and the accompanying drawings. Embodiments according to the invention may fulfill individual features or a combination of several features.
[0035] Within the scope of the invention, features marked with "in particular" or "preferably" are to be understood as optional features.
[0036] The invention is described below, without limiting the general concept of the invention, with reference to exemplary embodiments and the drawings, whereby for all details of the invention not explained in detail in the text, explicit reference is made to the drawings. The drawings show: Fig. 1 a schematically simplified front view of a first locking element to which a sight is attached, Fig. 2 a schematically simplified view of the locking element and the sight made of Fig. 1 from the top, Fig. 3 A schematically simplified view of the locking element and the sight from the Fig. 1 and Fig. 2 from the bottom, Fig. 4 A schematically simplified front view of a second locking element intended for attachment to a helmet, Fig. 5 a schematically simplified view of the locking element made of Fig. 4 from the top, Fig. 6 A schematically simplified view of the locking element of the Fig. 4 and Fig. 5 from the bottom, Fig. 7 a schematically simplified representation of a first locking element which is locked along a locking direction on a second locking element, Fig. 8 a schematically simplified representation of the locking process from Fig. 7 along the intersection line A:A, Fig. 9 a schematically simplified representation of the fastening system with the first locking element and the second locking element made of Fig. 8 during the locking process, Fig. 10 a schematically simplified representation of the fastening system from the Fig. 8 and Fig. 9 in the locked position, Fig. 11 A schematically simplified representation of a fastening system with a first locking element and a second locking element which are separated from each other by moving along a release direction and Fig. 12 A schematically simplified representation of a fastening system for attaching a helmet accessory to a helmet shell of a helmet.
[0037] In the drawings, identical or similar elements and / or parts are provided with the same reference numbers, so that a re-presentation is omitted.
[0038] Fig. Figure 1 schematically shows a first locking element 10 by means of which a visor 40 can be detachably fixed to a helmet (not shown). The locking element 10 is fixed to an upper edge of the visor 40.
[0039] In Fig. Figure 2 shows the first locking element 10 and the sight 40 in a top view. It is evident that the first locking element 10 has a substantially planar shape and that its upper surface is largely formed as a first contact surface 11. A locking element 12 is arranged centrally in the first contact surface 11 and is hinged to it, as shown in Fig. 2 is represented by a dashed line. In the embodiment shown, the locking element 12 comprises a wider first section 12a and a narrower second section 12b, each having a substantially rectangular cross-section. According to another embodiment, sections 12a and 12b can also be of equal width. The lateral edges of the locking element 12 are designed as release walls 13, which have a chamfered or beveled shape. This is shown in Fig. Figure 2 is shown as dashed lines. While the rear end of the locking element 12 is hinged to the first contact surface 11, the front end is freestanding, allowing the locking element 12 to pivot. In the illustrated embodiment, the locking element 12 is designed as a spring tongue 12d, which is lifted out of the first contact surface 11 by its spring force or actuating force. In this position, protruding from the first contact surface 11, the locking element 12 assumes a so-called locking position. If, however, the locking element 12 is pressed downwards so that it is recessed into the first contact surface 11, this position is referred to as the release position.
[0040] From the first contact surface 11, a guide wall 17 projects upwards at the front, extending vertically upwards from the first contact surface 11. Two retaining plates 14 project inwards from this guide wall 17, thus being positioned above the first contact surface 11. A retaining lug 15 also projects inwards from the center of the guide wall 17. Two magnets 16 are also embedded in the first contact surface 11.
[0041] Fig. Figure 3 shows the first locking element 10 in a bottom view. This view also shows the first locking element 12, which, in the illustrated embodiment, completely penetrates the first contact surface 11. However, the locking element 12 can also be arranged in the first locking element 10 in such a way that it is not visible from the rear. The sight 40 is fixed to the first locking element 10 by means of a sight holder 18. For example, two screws are provided as part of the sight holder 18, with which the sight 40 is screwed to the first locking element 10.
[0042] In Fig. Figure 4 shows a second locking element 20 in a front view. The second locking element 20 comprises a second contact surface 21 on its underside, which, in the locked state, rests against the first contact surface 11 of the first locking element 10. A guide wall 27 extends along the front of the second locking element 20, which, in the locked state, rests against the guide wall 17 of the first locking element 10. A guide groove 25 is centrally provided in the guide wall 27, into which the retaining lug 16 of the first locking element 10 engages in the locked state. Similarly, two guide recesses 24 are arranged on both sides of the second locking element 20, into which the retaining plates 14 engage. The side edges of the guide recesses 24 are inclined, which in Fig. Figure 4 is shown by dashed lines. The guide wall 27 is extended centrally upwards and forms a helmet holder 29 there. This helmet holder 29 is fixed, for example, to an inside or outside of the helmet shell.
[0043] Fig. Figure 5 shows the second locking element 20 in a top view. This view shows that the second locking element 20 has two symmetrically arranged magnets 26, which, in the locked position, lie directly above the magnets 16 of the first locking element 10. The magnet pairs 16, 26 formed in this way hold the locking elements 10, 20 together. Furthermore, in Fig. 5 clearly shows that the guide recesses 24 are wider than the retaining plates 14 and thus allow movement of the retaining plates 24 in the guide recesses 24.
[0044] Fig. Figure 6 shows the second locking element 20 in a bottom view. In this view, a receiving component 22 can be seen, which is formed as a recess in the second contact surface 21 on the underside of the second locking element 20. The receiving component 22 is at least partially form-complementary to the locking element 12. When the locking elements 10, 20 are moved into the locked position, the locking element 12 moves from the release position to the locking position due to the spring force, so that the locking element 12 engages in the receiving component 22. The side walls of the receiving component 22 are at least partially formed as release walls 23, which are also formed as chamfered or beveled edges. This is indicated by dashed lines.By means of the release walls 13, 27, the locking element 12 is released from the receiving component 22 and moved from the locking position to the release position when the locking elements 10, 20 are moved laterally against each other.
[0045] Fig. Figure 7 shows a schematically simplified fastening system 2 comprising the first locking element 10 and the second locking element 20. The sight 40 is in Fig. Number 7 is not shown for clarity. Fig. In section 7, the locking elements 10 and 20 are separated from each other. By moving the first locking element 10 along a locking direction 50 towards the second locking element 20, the first locking element 10 is locked onto the second locking element 20. This is the case, for example, when the visor 40, which is fixed to the first locking element 10, is to be attached to a helmet to which the second locking element 20 is fixed.
[0046] Fig. Figure 8 shows a representation of the locking movement from Fig. 7 in a cross-sectional view along the axis A:A. In contrast to Fig. However, for the sake of clarity, the locking elements 10 and 20 are already moved much closer together. Fig. Figure 8 shows that the locking element 12, designed as a spring tongue 12d, is pivoted upwards out of the first contact surface 11 in the rest state and assumes the locking position.
[0047] A spring force or actuating force is exerted on the spring tongue 12d by means of a solid-state joint 12c, which acts as a return element 19, when it moves out of the locked position. Fig. Figure 8 also shows that the receiving component 22 is designed as a recess in the second locking element 20 and the stop wall 22a is a front wall of the recess.
[0048] Fig. 9 shows the fastening system Fig. 8, whereby the first locking element 10 has already been partially pushed under the second locking element 20. As the first locking element 10 moves along the locking direction 50, the first contact surface 11 moves along the second contact surface 21. This pushes the locking element 12 downwards against the actuating force 55, which acts in a contact direction 52, and places it in a release position. This allows the first contact surface 11 and the second contact surface 21 to move relative to each other easily along the locking direction 50. This movement also inserts the retaining lug 15 into the guide groove 25, thus preventing the locking elements 10 and 20 from moving relative to each other along the contact direction 52.
[0049] Fig. Figure 10 shows the fastening system of the Fig. 8 and Fig. 9 in the locked position. In this locked position, the retaining lug 15 is fully engaged in the guide groove 25, and the guide wall 17 of the first locking element 10 rests against the guide wall 27 of the second locking element 20. The actuating force 55 moves the locking element 12 upwards in the contact direction 52 into the receiving component 22 of the second locking element 20. This prevents the first locking element 10 from detaching from the second locking element 20 in a direction 51 opposite to the locking direction 50. The stop wall 22a prevents movement of the locking element 12 in the opposite direction 51, and thus of the entire first locking element 10, so that the locking elements 10 and 20 of the fastening system 2 are securely engaged. Fig. Figure 10 does not show that, in the locked position, the magnets 16, 26 lie one above the other in two magnet pairs and securely hold the locking elements 10, 20 together. Furthermore, the retaining plates 14 lie in the guide recesses 24, which is also not visible in the selected cross-sectional view.
[0050] Fig. Figure 11 schematically illustrates a simplified release process for detaching the first locking element 10 from the second locking element 20 of the fastening system 2. For this purpose, the first locking element 10 is moved along an arc-shaped release direction 53 or in the opposite direction to the second locking element 20. The direction of the release movement is determined by the arc-shaped guide walls 17, 27. Furthermore, the retaining lug 15 and the guide groove 25, as well as the retaining plates 14 and the guide recesses 24, support the movement in the direction of the release direction 53, as they largely prevent movement in other directions. The movement in the release direction 53 causes the magnet pairs 16, 26 to no longer be aligned and thus the locking elements 10, 20 no longer hold together.Furthermore, the movement in the release direction 53 moves the guide walls 17 of the locking element 12 along the guide walls 27 of the receiving component 22. Since the guide walls 17 and 27 are each designed as inclined or chamfered walls, the locking element 12 is pressed downwards by the movement in the release direction 53 and moves from the locking position to the release position, so that the locking element 12 can detach from the receiving component 22. Thus, the fastening system 2 defines a release direction 53 that differs from the locking direction 50 or the opposite direction 51. In this way, the visor 40 can be easily removed from the helmet, while at the same time largely preventing unintentional removal of the visor 40.
[0051] Fig. Figure 12 shows a further embodiment of a fastening system 2 for fixing a helmet accessory 45, which in the illustrated embodiment is a lamp 44, to a helmet 42. The lamp 44 is fixed to the first locking element 10, which is clamped to the outside of the helmet shell of the helmet 42. The second locking element 20 is fixed to the helmet shell of the helmet 42. The first locking element 10 comprises two latching elements 12 at its lower end, each of which has magnets 16 arranged on it. Magnets of the second locking element 20, which are in Fig. When the first locking element 10 is fixed to the second locking element 20 in the locking direction 50, the magnets 16 are attracted and pivoted towards the helmet shell, so that the locking elements 12 are inserted into receiving components 22 of the second locking element 20. A spring element 31 of the first locking element 10, which rests against a spring element 32 of the second locking element 20, exerts a force component in the opposite direction 51 on the first locking element 10 in order to fix it to the second locking element 20. The stop walls 22a of the receiving components 22 prevent the force component in the opposite direction 51 from detaching the first locking element 10 from the second locking element 20. To release the locking elements 10 and 20 from each other, they are instead moved against each other in the direction of release 53. Fig.12 release walls 13, 23 of the locking elements 12 or of the receiving components 22 not shown, the locking elements 12 detach from the receiving components 22 during a movement in the release direction 53, so that the first locking element 10 can be detached from the second locking element 20 and thus the lamp 44 from the helmet 42.
[0052] All features mentioned, including those discernible from the drawings alone as well as individual features disclosed in combination with other features, are considered essential to the invention, both individually and in combination. Inventive embodiments may be fulfilled by individual features or by a combination of several features. Reference symbol list 2 fastening system 10 first locking element 11 first investment area 12 bar elements 12a first section 12b second section 12c Solid body joint 12d spring tongue 13 Release wall 14 Mounting plate 15 retaining lug 16 Magnet 17 Guide wall 18 Visor mount 19 Return element 20 second locking element 21 second planting area 22 Recording component 22a Stop wall 23 Release wall 24 Guide indentation 25 guide groove 26 Magnet 27 Guide wall 29 Helmet mount 31 Spring element 32 spring element 40 visor 42 Helmet 44 Lamp 45 Helmet accessory 50 Locking direction 51 Opposite direction 52 Direction of installation 53 Direction of transfer 55 actuating force
Claims
[1] Fastening system (2) comprising a first closure element (10) and a second closure element (20), which are designed to be locked to one another by a movement of the first closure element (10) relative to the second closure element (20) along a locking direction (50) and to assume a locked state, wherein the first closure element (10) comprises at least one pivotably hinged locking element (12), wherein the second closure element (20) comprises at least one receiving component (22) with a stop wall (22a), wherein the fastening system (2) comprises a return element (19) which is designed to exert an actuating force (55) on the locking element (12) in order to pivot the locking element (12) in the direction of the receiving component (22) of the second closure element (20), so that the stop wall (22a) of the second closure element (20) limits a movement of the locking element (12) and thus of the first closure element (10) in an opposite direction (51), wherein the opposite direction (51) is opposite to the locking direction (50), wherein the receiving component (22) and the locking element (12) each comprise at least one release wall (23) which is designed to slide on one another during a movement of the first closure element (10) relative to the second closure element (20) along a detachment direction (53) in order to pivot the locking element (12) from a locking position into a release position against the actuating force, wherein the detachment direction (53) runs transversely to the locking direction (50). [2] Fastening system (2) according to claim 1, characterized byin that the first closure element (10) has a first contact surface (11) and the second closure element (20) has a second contact surface (21), wherein the first contact surface (11) in the locked state bears at least partially against the second contact surface (21) in a contact direction (52), wherein the contact direction (52) extends transversely to the locking direction (50), wherein the locking element (12) is articulated on the first contact surface (11), wherein the actuating force (55) comprises a force component along the contact direction (52) in order to pivot the locking element (12) out of a plane of the first contact surface (11). [3] Fastening system (2) according to claim 1 or 2, characterized by that the locking element (12) is designed as a spring tongue (12d) and a spring component of the spring tongue (12d) is the return element (19). [4] Fastening system (2) according to one of claims 1 to 3, characterized bythat the receiving component (22) is designed as a recess in the second closure element (20), wherein the recess is designed in particular at least partially to form a positive fit with the locking element (12). [5] Fastening system (2) according to one of claims 1 to 4, characterized by in that the first closure element (10) and the second closure element (20) each have a guide wall (17) which each extend along the detachment direction (53) and which abut one another in the locked state, wherein the first closure element (10) and the second closure element (20) are displaceable against one another along the guide walls (17) in the locked state in order to slide against one another and to detach the first closure element (10) from the second closure element (20), wherein the detachment walls are in particular arc-shaped. [6] Fastening system (2) according to claim 5, characterized byin that one of the guide walls (17) has a guide groove (25) and the other guide wall (17) has a protruding retaining lug (15), wherein the retaining lug (15) engages in the guide groove (25) in the locked state, wherein the guide groove (25) extends in the detachment direction (53) and wherein a length of the guide groove (25) is greater than a length of the retaining lug (15) in the detachment direction. [7] Fastening system (2) according to claim 5 or 6, characterized byin that one of the guide walls (17) has at least one holding plate (14) projecting in the locking direction (50) and the other guide wall (17) has at least one guide indentation (24), wherein the holding plate (14) is arranged in the guide indentation (24) in the locked state, wherein the guide indentation (24) and the holding plate (14) each extend in the detachment direction (53), wherein a length of the guide indentation (24) is greater than a length of the holding plate (14) in the detachment direction (53). [8] Fastening system (2) according to one of claims 1 to 7, characterized by that the release wall (23) of the locking element (12) and / or the receiving component (22) are chamfered. [9] Fastening system (2) according to one of claims 1 to 8, characterized by that the release wall (23) of the locking element (12) and / or the receiving component is inclined in the detachment direction (53). [10] Fastening system (2) according to one of claims 1 to 9, characterized by that the locking element (12) is divided along the locking direction (50) into a first section (12a) and a second section (12b), wherein the first section (12a) is wider than the second section (12b). [11] Closure element (10, 20) according to one of claims 1 to 10, characterized by that the locking element (12) is articulated orthogonally to the locking direction (50). [12] Fastening system (2) according to one of claims 1 to 11 comprising at least one pair of magnets (16, 26) which, in the locked state, exerts an attractive magnetic force between the first closure element (10) and the second closure element (20). [13] Fastening system (2) according to one of claims 1 to 12, characterized bythat the first closure element (10) or the second closure element (20) is fixed or can be fixed to a helmet (42) and the other closure element (20) is fixed or can be fixed to a helmet accessory (45). [14] Helmet (42) comprising a helmet accessory (45) and a fastening system (2) according to one of claims 1 to 13, wherein the helmet accessory (45) is or can be releasably fixed to the helmet (42) by means of the fastening system (2). [15] Method for locking and detaching a first closure element (10) on orby a second closure element (20) by means of a fastening system (2), in particular according to one of claims 1 to 14, wherein the first closure element (10) is moved relative to the second closure element (20) along a locking direction (50), wherein an actuating force (55) is exerted on a locking element (12) of the first closure element (10) by means of a return element (19), wherein the actuating force (55) pivots the locking element (12) in the direction of a receiving component (22) of the second closure element (20) and assumes a locking position, wherein a stop wall (22a) of the receiving component (22) of the second closure element (20) limits movement of the locking element (12) and thus of the first closure element (10) in an opposite direction, so that the fastening system (2) assumes a locked state, wherein the opposite direction (51) is opposite to the locking direction (50). wherein, in order to detach the first closure element (10), the first closure element (10) is moved relative to the second closure element (20) along a detachment direction (53) such that a release wall (23) of the locking element (12) slides along a release wall (23) of the receiving component (22) in order to pivot the locking element (12) from the locking position against the actuating force (55) into a release position, wherein the detachment direction runs transversely to the locking direction (50).
Citation Information
Patent Citations
universal ADAPTER FOR NIGHT VISION DEVICES
DE69320970T2