Belt connecting element, belt arrangement and method for releasing a belt arrangement

Abstract

The invention relates to a belt connecting element (1) which is connected to a safety belt (G) and which is provided for detachable connection with a belt anchoring element (2), comprising - at least one case (11), - at least two locking elements (12a, 12b) which are movably mounted in the housing (11), - at least two keys (T1, T2) which are movably mounted in the housing (11), - at least two transmission elements (13a, 13b), wherein the belt connecting element (1) is provided for insertion into a belt anchoring element (2) in an insertion direction (ER), and the two locking elements (12a, 12b) each have an engagement area (121) which, in a locking position, projects in a direction perpendicular to the insertion direction (ER) beyond the guide area (112) of the housing (11) adjacent in the insertion direction (ER). The invention further relates to a belt assembly (100) with a belt connecting element (1) and a method for releasing the connection between a belt connecting element (1) and a belt anchoring element (2).

Description

[0001] The invention relates to a belt connecting element which is connected to a safety belt and which is intended for detachable connection to a belt anchoring element, comprising - at least one housing, - at least two locking elements which are movably mounted in the housing, - at least two buttons which are movably mounted in the housing, - at least two transmission elements, The belt connecting element is provided for insertion into a belt anchoring element in an insertion direction, and the two locking elements each have an engagement region which, in a locking position, protrudes in a direction perpendicular to the insertion direction beyond the guide region of the housing adjacent in the insertion direction. The invention further relates to a belt arrangement with a belt connecting element and a method for releasing the connection between a belt connecting element and a belt anchoring element.

[0002] Safety belts for securing people in seats are used in many different technical areas, for example in motor vehicles. A safety belt is usually connected to a belt connecting element. Such a belt connecting element can be designed, for example, as a belt tongue that is arranged to be displaceable along the seat belt. The counterpart to the belt connecting element is formed by a belt anchoring element, which can be connected to the belt connecting element and is designed to be detachable after pressing a button. The belt anchoring element is preferably connected to a fixed point, in particular in a vehicle. The actual safety belt is also connected to a fixed point. To buckle a person in, the safety belt is placed around the person together with the belt connecting element and then connected to the belt anchoring element.The connection between the belt connecting element and the belt anchoring element is designed so that it cannot be accidentally released, but can be easily separated if the seat belt needs to be unfastened. In belt arrangements in vehicles, the belt anchoring element usually has a button which must be pressed to release the connection to the seat belt. In this case, the belt anchoring element can also be referred to as a belt buckle, which is preferably arranged near the seat surface of a seat in a vehicle. If several seats with a belt arrangement are located next to each other, the button on the belt anchoring elements between the seats is often difficult to reach and the connection to the seat belt or the belt connecting element can only be released with difficulty.This is especially true when adjacent seats are occupied by multiple people, or when child seats or booster seats are installed on one or more of the adjacent seats. Furthermore, a seat belt anchorage element may be difficult to reach if the backrest of one of the adjacent seats is folded down to increase the vehicle's cargo space.

[0003] WO 00 / 36 944 A1 describes a belt anchoring element designed as a belt buckle, which is arranged near a vehicle seat and intended for connection to a belt tongue. To prevent accidental release of the connection between the belt buckle and the belt tongue, the belt buckle has two buttons that must be pressed simultaneously to release the connection.

[0004] DE 19 45 736 A describes a belt assembly comprising a belt anchoring element connected to a vehicle and a belt connecting element connected to a safety belt. The connection between these two elements can be released by a simple one-handed pulling movement on a housing part of the belt connecting element.

[0005] GB 2 449 976 A describes a belt assembly for a child seat. This belt assembly includes a buckle that connects a total of five safety belts. The buckle includes two buttons that must be pressed simultaneously to release the connection between the belts and the buckle.

[0006] DE 201 16 939 U1 describes a buckle for a seat belt. This buckle comprises a locking element arranged in a frame, which can be moved from a locked position to a release position to release the buckle. The locking element can be actuated via a small actuating opening. To prevent accidental actuation of the locking element, a special actuating element must be inserted into the actuating opening.

[0007] The object of the invention is to propose solutions that allow a seat belt to be released in a simplified manner. However, it should be ensured that the seat belt cannot be released accidentally.

[0008] This object of the invention is achieved by a belt connecting element which is connected to a safety belt and which is provided for detachable connection to a belt anchoring element, wherein the belt anchoring element is connected to a fixed point, in particular in a vehicle, the belt connecting element comprising - at least one housing having a fastening area for connection to the safety belt, - at least two locking elements which are movably mounted in the housing, - at least two buttons which are movably mounted in the housing, - at least two transmission elements, wherein a first transmission element connects a first locking element to a first button and a second transmission element connects a second locking element to a second button, wherein the first transmission element translates a movement of the first button into a movement of the first locking element and the second transmission element translates a movement of the second button into a movement of the second locking element, wherein the belt connecting element is provided for insertion into the belt anchoring element in an insertion direction, wherein in this insertion direction the two buttons are arranged between the fastening region and the two locking elements and the two locking elements each have an engagement region which, in a locking position, protrudes in a direction perpendicular to the insertion direction beyond the guide region of the housing adjacent in the insertion direction,whereby the belt connecting element is moved by a movement of both buttons in, a release position can be transferred in which the two engagement areas protrude less far beyond the adjacent guide area of ​​the housing in a direction perpendicular to the insertion direction than in the locking position.

[0009] The belt connecting element according to the invention belongs to a belt arrangement which has a belt anchoring element as a counterpart to the belt connecting element. The belt connecting element according to the invention is connected or connectable, preferably movably, to a safety belt. When fastening the safety belt, the belt connecting element is grasped by a person, the safety belt is placed around the person together with the belt connecting element, and then, to secure the safety belt, the belt connecting element is connected to the belt anchoring element. The belt anchoring element is connected to a stationary point, in particular in a vehicle. The safety belt is also fastened to at least one stationary point, in particular in a vehicle.According to the invention, two buttons for releasing the connection between the belt connecting element and the belt anchoring element are located on the belt connecting element connected to the seat belt. In known solutions, a button for releasing this connection is usually located on the fixedly anchored belt anchoring element. The arrangement of the buttons on the belt connecting element according to the invention significantly simplifies the release of a connection between the belt connecting element and the belt anchoring element, as they are easier to reach than if they were located on the belt anchoring element.

[0010] The belt connecting element according to the invention comprises a housing having a fastening region through which the safety belt is guided during use. The fastening region can, for example, be designed as a slot into which the safety belt is inserted. In this way, the belt connecting element is displaceable relative to the safety belt. The belt connecting element further comprises at least two locking elements which are provided for establishing a positive connection with the belt anchoring element. The two locking elements are movably mounted in the housing, with one locking element each being operatively connected to a button. Two buttons are movably mounted in the housing and are provided for releasing the connection between the belt connecting element and the belt anchoring element when actuated.A transmission element is arranged between each button and a locking element, which kinematically connects each button to a respective locking element. The transmission element can be designed in one piece, for example as a simple lever, or comprise several components which together form a type of gear. The belt connecting element is connected to the belt anchoring element by the belt connecting element being inserted into the belt anchoring element in a plug-in direction. The plug-in direction is used below to describe the arrangement of the various components. The plug-in direction is therefore also to be understood as a straight line in space, which can be used as an auxiliary geometry to describe other shapes or arrangements. According to the invention, the two buttons are arranged in this plug-in direction between the fastening area and the two locking elements.The fastening area is located on the very outside of the housing, whereas the two locking elements are arranged on the opposite side of the housing in the insertion direction. When the belt connecting element is connected to the belt anchoring element, the section of the belt connecting element with the locking element is pushed into the belt anchoring element, whereas the section of the belt connecting element with the buttons and the fastening area remains outside the belt anchoring element. Each of the two locking elements comprises an engagement area which, in a locked position, protrudes outwards over an adjacent guide area of ​​the housing. This engagement area is intended to create a positive connection with a belt anchoring element. Due to the movable mounting of the locking elements, the engagement area is movable relative to the housing.The locking position is the state of the belt connecting element in which there is a lock between the belt connecting element and an anchoring element. To release the connection, the belt connecting element can be moved into a release position in which there is no longer any positive connection between the two elements and the connection between the belt connecting element and the belt anchoring element can therefore be easily released. In the locking position, the engagement areas protrude beyond the adjacent guide area in a direction perpendicular to the insertion direction. When the belt connecting element is moved into the release position, the two engagement areas are moved into the housing so that they protrude less far beyond the guide area. The engagement areas are moved by both buttons being subjected to a force simultaneously, thus pressing them into the housing.Through the operative connection via the transmission elements, this movement of the buttons is translated into a movement of the engagement areas. Of course, it is also possible to press only one button, in which case only one engagement area is moved into the interior of the housing. According to the invention, however, this movement of only one engagement area is not sufficient to break the positive connection between the belt connecting element and the belt anchoring element. This ensures that if a button is accidentally pressed, the connection remains intact and the seat belt does not unintentionally release.

[0011] The belt connecting element according to the invention has the advantage that the buttons for releasing the connection to a belt anchoring element are significantly more easily accessible than with the arrangement of one or more buttons on the belt anchoring element. The arrangement of the buttons directly adjacent to the fastening area connected to the seat belt enables very good accessibility even in a case where several seats are arranged next to one another and all of these seats are occupied. Thanks to the belt connecting element according to the invention, the buttons for releasing the connection protrude significantly further over a seat surface than with known solutions. In this way, these buttons are also easier to reach when using child seats or when adjacent seats with folded backrests are arranged.The combination of two buttons with two locking elements simultaneously ensures that the belt connecting element according to the invention does not accidentally detach from the belt anchoring element. For this purpose, the buttons are recessed into the shape of the belt connecting element, making accidental activation unlikely. It is possible for a button to be accidentally activated, for example by a passenger touching it with an elbow. The buttons can also be made relatively small so that they can only be moved with the fingers and not with other wider and blunt body parts, such as the elbow. However, pressing one button is not sufficient to release the connection to the belt anchoring element; however, accidentally pressing both buttons simultaneously is hardly possible, whereby the belt connecting element according to the invention provides a very secure connection to the belt anchoring element.

[0012] In one embodiment, the two buttons are mounted in the housing so as to be movable in a direction perpendicular to the insertion direction, wherein the buttons can be moved in opposite directions by applying a force to transfer the belt connecting element from the locking position to the release position. In this embodiment, actuation of the buttons in a direction perpendicular to the insertion direction is provided. The buttons are guided in such a way that they must be moved into the housing in opposite directions to transfer the belt connecting element into the release position. This arrangement is particularly advantageous for preventing accidental release of the connection of the belt arrangement or the safety belt.Preferably, the keys are pre-tensioned by a force, for example generated by the reset mechanism described later, so that the keys cannot move unintentionally, for example due to gravity.

[0013] In a further embodiment, at least one reset mechanism is provided which automatically moves the buttons and / or the locking elements into the locked position when the buttons are not subjected to a force to move them into the release position. In this embodiment, a reset mechanism is provided which automatically pretensions the buttons or the locking elements in the locked position. This ensures that the locked position is always assumed when the buttons are not actuated and that the seat belt remains securely connected when connected to a belt anchoring element. The reset mechanism can be formed, for example, by one or more springs. Alternatively, a magnetically acting reset mechanism is also conceivable.Due to the kinematic coupling of buttons, transmission elements, and locking elements, it is sufficient for one of these elements to be connected to a reset mechanism. The kinematic coupling then automatically preloads the other elements in the locking position.

[0014] In one embodiment, it is provided that the locking elements are mounted in the housing so as to be rotatable about an axis perpendicular to the insertion direction, and the transmission elements are each formed by a lever which is mounted in the housing so as to be rotatable about an axis perpendicular to the insertion direction, wherein this axis of rotation of the lever is arranged in the insertion direction between the keys and the locking elements, and the lever extends from its axis of rotation on the one hand to the keys and on the other hand to the locking elements,The end of each lever facing the keys is kinematically connected to a key, and the end of each lever facing the locking elements is kinematically connected to a locking element, and a linear movement of the keys causes a rotational movement of the transmission elements about their rotational axis, and this rotational movement of the transmission elements causes a rotational movement of the locking elements about their rotational axis. In this embodiment, both the locking elements and the transmission elements are rotatably mounted in the housing. Thus, a linear movement of the keys is translated into a rotational movement of the transmission elements as well as a rotational movement of the locking elements. The transmission elements are designed as levers acting on both sides of the rotational axis.One end of each lever is kinematically connected to a button and a locking element. In this embodiment, the mounting of the locking elements and the transmission elements is particularly simple and robust. Alternatively, it is possible for the transmission elements and / or the locking elements to be mounted in the housing for linear movement.

[0015] In a further embodiment, the housing comprises a stop region which protrudes beyond the buttons, preferably beyond the locking elements, in the insertion direction on the side facing away from the fastening region. The stop region is provided to adjust the relative position of these elements to one another in the insertion direction when the belt connecting element is inserted into a belt anchoring element. Such a stop region serves to precisely position the belt connecting element relative to a belt anchoring element. When connected to the belt anchoring element, the stop region abuts against a correspondingly provided stop surface on the belt anchoring element, thus ensuring correct positioning in the insertion direction.

[0016] The object of the invention is further achieved by a belt arrangement with a belt connecting element and a belt anchoring element, wherein the belt connecting element is designed according to one of the previously described embodiments and the belt anchoring element comprises a receiving housing with a receiving cavity and an anchor element, wherein the receiving cavity comprises an insertion opening through which a partial area of ​​the belt connecting element can be inserted into the receiving cavity and the insertion opening is arranged opposite the anchor element in the insertion direction and the anchor element is provided for connection to a fixed point in a vehicle, wherein the receiving cavity has, adjacent to the insertion opening, two undercuts opposite one another in a direction perpendicular to the insertion direction, which undercuts are delimited in the insertion direction by a partial area of ​​the receiving housing, wherein in the locking position a partial area of ​​the locking elements is introduced into the receiving cavity and an engagement area of ​​each locking element is in an undercut and there is a positive connection between the engagement areas and the undercuts in the insertion direction.

[0017] The belt arrangement according to the invention comprises, in addition to a previously described belt connecting element, a belt anchoring element which forms the counterpart to the belt connecting element. When the belt connecting element and belt anchoring element are connected in the locked position, the connection cannot be separated. However, if the belt connecting element is moved into the release position, the belt connecting element and belt anchoring element can be separated from one another by pulling them apart in the insertion direction. The belt anchoring element comprises a receiving housing which has a receiving cavity. The receiving cavity is intended to receive a portion of the belt connecting element. Furthermore, the belt anchoring element comprises an anchor element which is connected to the receiving housing. The anchor element is intended to fix the belt anchoring element in a fixed location, for example in a vehicle.The receiving cavity is accessible through an insertion opening, at the edge of which are two undercuts. These two undercuts are located opposite each other in a direction perpendicular to the insertion direction and are each delimited in the insertion direction by a portion of the receiving housing, so that they are not directly accessible from the insertion direction. In the locked position, the two engagement areas of the belt connecting element each engage in an undercut and together form a positive connection that acts in the insertion direction. By pressing both buttons on the belt connecting element, it can be moved into the release position and separated from the belt anchoring element.

[0018] The belt arrangement according to the invention is simply constructed and can be separated in a simple but safe manner. By arranging the buttons for transferring the release position in a position that is more easily accessible than buttons arranged on the belt anchoring element, the belt arrangement can be separated more conveniently. At the same time, the provision of two buttons, which must be actuated simultaneously to transfer the release position, ensures that the belt arrangement and thus the seat belt do not become accidentally released. The dimensions and recess of the buttons are designed in such a way that accidental activation of the buttons is extremely unlikely. The belt arrangement according to the invention enables the seat belt to be released quickly and saves time, particularly when releasing a seat belt of a child sitting in a child seat.The belt arrangement according to the invention is also advantageous in a case where several people sit side by side on directly adjacent seats in a vehicle. By arranging the buttons higher above the seat surface than if they were positioned on the belt anchorage element, they can be reached more easily in confined spaces. Children can operate the seat belt more easily, thus becoming independent more quickly.

[0019] In one embodiment of the belt arrangement it is provided that the clear width of the insertion opening in a direction perpendicular to the insertion direction is smaller than the maximum distance between the two engagement regions in a direction perpendicular to the insertion direction in the locking position and the maximum distance between the undercuts in a direction perpendicular to the insertion direction is greater than or equal to the maximum distance between the two engagement regions in a direction perpendicular to the insertion direction in the locking position. Clear width is the width of the receiving cavity accessible in the insertion direction in a direction perpendicular to the insertion direction. The clear width is delimited on two opposite sides by a respective partial region of the receiving housing, which also delimits an undercut. The clear width is smaller than the maximum distance between the two engagement regions.This prevents the belt connecting element from being pulled out of the belt anchoring element in the locking position in the insertion direction. At the same time, the receiving cavity from one outer boundary of a first undercut to the second outer boundary of the second undercut is greater than or equal to the maximum distance between the engagement areas. This allows the engagement areas to be completely inserted into the receiving cavity.

[0020] Furthermore, it is provided that in the release position the maximum distance between the two engagement areas in a direction perpendicular to the insertion direction is smaller than the clear width of the insertion opening in a direction perpendicular to the insertion direction, whereby in the release position there is no positive connection in the insertion direction between the engagement areas and the undercuts. In the release position the engagement areas are at least partially retracted into the housing and the maximum width between the two engagement areas is smaller than in the locking position. In the release position this maximum distance is now smaller than the clear width of the insertion opening, so that in the release position the belt connecting element can be pulled out of the belt anchoring element.

[0021] In a further embodiment, the movement of only one button causes the movement of only one engagement region relative to the housing, wherein only one of the two engagement regions protrudes less far beyond the adjacent guide region of the housing in a direction perpendicular to the insertion direction than in the locking position, wherein the maximum distance between the two engagement regions in a direction perpendicular to the insertion direction with only one engagement region in the release position is greater than the clear width of the insertion opening in a direction perpendicular to the insertion direction and thus a positive connection exists in the insertion direction between the belt connecting element and the belt anchoring element. If only one button is actuated, then accordingly only the position of one locking element changes relative to the housing. In this case, only one locking element is moved into the release position.The other locking element remains in the locked position. The belt arrangement is designed so that if one locking element is in the release position and the other locking element is still in the locked position, the belt connecting element and the belt anchoring element cannot separate. This way, this connection remains intact even if a button is accidentally pressed, and the seat belt remains securely in position.

[0022] The object of the invention is finally achieved by a method for releasing the connection between a belt connecting element and a belt anchoring element of a belt arrangement according to one of the previously described embodiments starting from the locking position, comprising the method steps A) Applying a force to the two buttons so that they are moved in the housing, whereby the movement of the buttons is translated via the two transmission elements into a movement of the two locking elements relative to the housing until the engagement areas of both locking elements are located outside the two undercuts in the receiving cavity and there is no positive connection in the insertion direction between the belt connecting element and the belt anchoring element, B) Pulling the belt connecting element out of the belt anchoring element in the insertion direction.

[0023] The method according to the invention is used to release a safety belt that is connected to a belt connecting element. In the method, the belt connecting element is released from a belt anchoring element. The method assumes the previously described locking position of a belt assembly.

[0024] In a first process step, a force is applied to both buttons, causing them to move within the housing. This movement of the buttons is ultimately transmitted to the locking elements via the operative connection with the transmission elements. In the process, the engagement areas move out of the undercut, and the positive connection between the engagement areas and the undercut is eliminated.

[0025] In a second and final process step, the belt connecting element is then simply pulled out of the belt anchoring element in the insertion direction.

[0026] The procedure is particularly easy to perform because the two buttons for releasing the locking position and initiating the release position are conveniently located on the belt connector near its connection to the seat belt. This allows the buttons to be easily reached even if there are other objects or people near the belt assembly that make access to the belt anchorage difficult.

[0027] Features, effects, and advantages disclosed in connection with the belt connecting element are also deemed to be disclosed in connection with the belt assembly and the method. The same applies in reverse: features, effects, and advantages disclosed in connection with the belt assembly and / or the method are also deemed to be disclosed in connection with the belt connecting element.

[0028] The invention is schematically illustrated by means of embodiments in the drawings and will be further described with reference to the drawings. They show: Fig. 1 in a schematic, partially sectioned view of a belt arrangement according to an embodiment of the invention in the separated state, Fig. 2 in a schematic, partially sectioned view the belt arrangement of Fig. 1 in the connected state in the locked position and Fig. 3 in a schematic, partially sectioned view the belt arrangement of Fig. 1 in the connected state in the release position.

[0029] Fig. 1 shows a schematic, partially sectioned view of a belt assembly 100 according to an embodiment of the invention in the separated state. At the top, a partially sectioned belt connecting element 1 according to the invention can be seen. The insertion direction ER runs from top to bottom and is symbolized by an arrow to the right of the belt connecting element 1. In the insertion direction ER, below the belt connecting element 1, a belt anchoring element 2 is shown, also partially sectioned. If the belt connecting element 1 is moved downwards in the insertion direction ER, a portion of the belt connecting element 1 penetrates into the belt anchoring element 2 and is connected thereto. The connected state of the belt assembly 100 is shown in the Fig. 2 and Fig. 3. The belt connecting element 1 comprises a housing 11, which at least partially accommodates the other components and guides them towards one another. The housing 11 can be made of metal, for example. At the very top in the insertion direction ER there is a fastening area 111, which is provided for connection to the safety belt G. The safety belt G is preferably arranged in the fastening area 111 so that it can be moved relative to the belt connecting element 1. In the insertion direction ER, adjacent to the fastening area 111, the two buttons T1, T2 are arranged, which are movably mounted in the housing 11 and can be actuated to release the connection to the belt anchoring element 2. In the insertion direction ER, on the side of the buttons T1, T2 facing away from the fastening area 111, the two transmission elements 13a, 13b are arranged.These transmission elements 13a, 13b are each formed by a lever, which is mounted in the housing 11 so as to be rotatable about an axis perpendicular to the insertion direction ER. Each lever extends in the insertion direction ER on two opposite sides of its axis of rotation. This axis of rotation, in turn, is arranged in the insertion direction ER between the keys T1, T2 and the locking elements 12a, 12b. The end of each transmission element 13a, 13b facing the keys T1, T2 is kinematically connected to a key T1, T2. Such a kinematic connection can be established, for example, via a joint or a hinge. The ends of the transmission elements 13a, 13b facing the locking elements 12a, 12b are, in turn, each kinematically connected to one of the locking elements 12a, 12b.In the illustrated embodiment, the ends of the transmission elements 13a, 13b engage around the upwardly facing ends of the locking elements 12a, 12b, creating a positive fit that forms the kinematic connection. Located below the transmission elements 13a, 13b in the insertion direction ER are the two locking elements 12a, 12b, which are symmetrically constructed and arranged symmetrically to a center plane of the housing 11 running in the insertion direction ER. The lower region of these locking elements 12a, 12b, which protrudes beyond the housing 11 and in particular beyond the guide region 112 of the housing 11, is each formed by an engagement region 121. The guide region 112 is the region of the housing 11 that is arranged directly adjacent to the engagement regions 121 in the insertion direction ER.As can be clearly seen in the illustration showing the belt connecting element 1 in the locked position, the two engagement regions 121 protrude beyond the adjacent guide region 112 of the housing 11 in a direction perpendicular to the extension direction ER. These protruding engagement regions 121 can be used to create a positive connection with the belt anchoring element 2. In the illustrated embodiment, the locking elements 12a, 12b are each rotatably mounted in the housing 11 about a rotation axis oriented perpendicular to the insertion direction ER. The two buttons T1, T2 are mounted in the housing 11 so as to be linearly displaceable in a direction perpendicular to the insertion direction ER. Stops can be provided in the housing 11 to limit the movement of the buttons T1, T2.In the illustrated embodiment, a return mechanism 14 in the form of a spiral spring is arranged between each button T1, T2 and a transmission element 13a, 13b. These return mechanisms 14 cause the buttons T1, T2, and thus kinematically coupled also the locking elements 12a, 12b, to be automatically transferred into the locking position, provided no force is applied to the two buttons T1, T2 to move them. The return mechanisms 14 thus ensure that the locking position is always automatically assumed, which, when connected to the belt anchoring element 2, ensures correct fixation of the safety belt G. A stop region 113 is arranged on the lower edge of the housing 11 in the insertion direction ER, which is opposite the fastening region 111.This stop area 113 engages the belt anchoring element 2 when the belt connecting element 1 is inserted into the belt anchoring element 2, thus establishing the correct relative position of the two elements. In the illustrated embodiment, the stop area 113 forms the lower limit of the belt connecting element 1. However, one or more stop areas 113 can also be arranged at other locations on the housing 11.

[0030] The belt anchoring element 2 is shown below the belt connecting element 1. The belt anchoring element 2 comprises a receiving housing 21 which is connected to an anchor element 22. The anchor element 22 can be formed, for example, by a wire rope which is connected to a stationary point, in particular in a vehicle. The anchor element 22 serves to fix the belt anchoring element 2. The anchor element 22 is firmly connected to the receiving housing 21. Inside the receiving housing 21 there is a receiving cavity 211 which is provided for receiving a portion of the belt connecting element 1. The receiving cavity 211 is accessible through the insertion opening E in the insertion direction ER. The receiving cavity 211 comprises two undercuts H which are arranged on the edge of the receiving cavity 211, adjacent to the insertion opening E.The undercuts H are formed by cavities which are delimited in the insertion direction ER by a partial area of ​​the receiving housing 21, but are accessible from a direction perpendicular to the insertion direction ER. When the belt connecting element 1 and belt anchoring element 2 are connected, the two undercuts H, together with the two engagement areas 121, form a positive connection in the insertion direction ER. Details on this can be found in connection with . Fig. 2. In the illustrated embodiment, the boundary surface of the receiving cavity 211 facing the anchor element 22 is used as a stop surface for the stop region 113 of the belt connecting element 1. The correct relative position between the belt connecting element 1 and the belt anchoring element 2 in the insertion direction ER is achieved when the stop region 113 strikes the boundary surface of the receiving cavity 211 facing the anchor element 22. This state is in Fig. 2 shown.

[0031] Fig. 2 shows in a schematic, partially sectioned view the belt arrangement 100 of Fig. 1 in the connected state in the locked position. To produce the Fig. 2 was based on the situation described in Fig. 1, the belt connecting element 1 is partially inserted into the belt anchoring element 2 in the insertion direction ER. The stop area 113 rests against the boundary surface of the receiving cavity 211 facing the anchor element 22. In the locking position shown, a partial area of ​​an engagement area 121 of the belt connecting element 1 is in each case in an undercut H of the receiving cavity 211 of the belt anchoring element 2. Thus, there is a positive connection between the engagement area 121 and the undercuts H, which prevents the belt connecting element 1 and the belt anchoring element 2 from being pulled apart in the insertion direction ER. The belt arrangement 100 is thus securely closed in the locking position shown, and the safety belt G is fixed. The two buttons T1, T2 are each pressed outwards by a return mechanism 14.At the same time, the two transmission elements 13a, 13b are rotated by the return mechanisms 14 into a position in which they automatically hold the two locking elements 12a, 12b in the locked position. Without applying any force or movement to the buttons T1, T2, the belt assembly 100 thus remains in the illustrated locked position. As shown in . Fig. 2, the clear width of the insertion opening E in a direction perpendicular to the insertion direction ER is greater than the maximum distance between the two engagement areas 121. In this way, a secure fixation of the belt connecting element 1 in the belt anchoring element 2 is ensured. Starting from the Fig. 2, the two buttons T1, T2 are pressed inwards into the housing 11 in a direction perpendicular to the insertion direction ER, the belt connecting element is moved into the position shown in Fig. 3. The two buttons T1, T2 are arranged opposite each other, slightly recessed in the housing 11. Due to the slightly recessed arrangement, the buttons T1, T2 cannot be accidentally activated, for example by placing an object on them. To activate the buttons T1, T2, for example, as shown in Fig. As shown in Figure 2, each key T1, T2 must be pressed into the housing 11 with a finger. During this movement of the keys T1, T2, the resistance exerted by the return mechanisms 14 must also be overcome.

[0032] Fig. 3 shows in a schematic, partially sectioned view the belt arrangement 100 from Fig.1 in the connected state in the release position. In the illustrated release position, the two buttons T1, T2 are pressed into the housing 11 in a direction perpendicular to the insertion direction ER. Due to the kinematic coupling, the two transmission elements 13a, 13b were rotated about their axes of rotation. This rotational movement of the transmission elements 13a, 13b was in turn translated into a rotational movement of the two locking elements 12a, 12b about their axes of rotation. In the illustrated release position, the two engagement areas 121 protrude only very slightly beyond the adjacent guide area 112 of the housing 11 in a direction perpendicular to the insertion direction ER. At the same time, the engagement areas 121 are no longer located within the two undercuts H.In this way, the positive connection in the insertion direction ER between the belt connecting element 1 and the belt anchoring element 2 is canceled, so that, starting from the illustrated state, the belt connecting element 1 could be pulled upwards out of the belt anchoring element 2. If only one button T1, T2 is pressed into the housing 11, this movement is only translated to a locking element 12a, 12b, so that only one engagement area 121 moves out of an undercut H. The other engagement area 121, however, remains in positive connection with the other undercut H. In this way, the positive connection between the belt connecting element 1 and the belt anchoring element 2 remains even if a button T1, T2 is accidentally pressed.In the release position shown, the maximum distance between the two engagement areas 121 in a direction perpendicular to the insertion direction ER is smaller than the clear width of the insertion opening E. If only one button T1, T2 is pressed, the maximum distance between the two engagement areas 121 in a direction perpendicular to the insertion direction ER remains greater than the clear width of the insertion opening E. LIST OF REFERENCE SYMBOLS: 1 belt connecting element 11 housings 111 Mounting area 112 Management area 113 Stop area 12a, 12b locking element 121 Intervention area 13a, 13b transmission element 14 Reset mechanism 2 belt anchorage element 21 housing 211 Recording cavity 22 Anchor element 100 belt arrangement E Insertion opening ER insertion direction G Seat belt H undercut T1, T2 button

Claims

[1] Belt connecting element (1) which is connected to a safety belt (G) and which is provided for detachable connection to a belt anchoring element (2), wherein the belt anchoring element (2) is connected to a fixed point, the belt connecting element (1) comprising - at least one housing (11) having a fastening area (111) for connection to the safety belt (G), - at least two locking elements (12a, 12b) which are movably mounted in the housing (11), - at least two buttons (T1, T2) which are movably mounted in the housing (11), - at least two transmission elements (13a, 13b), wherein a first transmission element (13a) connects a first locking element (12a) to a first button (T1) and a second transmission element (13b) connects a second locking element (12b) to a second button (T2), wherein the first transmission element (13a) translates a movement of the first button (T1) into a movement of the first locking element (12a) and the second transmission element (13b) translates a movement of the second button (T2) into a movement of the second locking element (12b), wherein the belt connecting element (1) is provided for insertion into the belt anchoring element (2) in an insertion direction (ER), wherein in this insertion direction (ER) the two buttons (T1, T2) are arranged between the fastening area (111) and the two locking elements (12a, 12b) and the two locking elements (12a, 12b) each have an engagement area (121),which, in a locking position, protrude in a direction perpendicular to the insertion direction (ER) beyond the guide region (112) of the housing (11) adjacent in the insertion direction (ER), wherein the belt connecting element (1) can be transferred by a movement of both buttons (T1, T2) into a release position in which the two engagement regions (121) protrude less far beyond the adjacent guide region (112) of the housing (11) in a direction perpendicular to the insertion direction (ER) than in the locking position. [2] Belt connecting element (1) according to claim 1, in which the two buttons (T1, T2) are mounted in the housing (11) so as to be movable in a direction perpendicular to the insertion direction (ER), wherein the buttons (T1, T2) are movable in opposite directions by applying a force to transfer the belt connecting element (1) from the locking position to the release position. [3] Belt connecting element (1) according to one of the preceding claims 1 or 2, in which at least one return mechanism (14) is provided which automatically transfers the buttons (T1, T2) and / or the locking elements (12a, 12b) into the locking position when the buttons (T1, T2) are not subjected to a force for movement into the release position. [4] Belt connecting element (1) according to one of the preceding claims 1 to 3, in which the locking elements (12a, 12b) are mounted in the housing (11) so as to be rotatable about an axis perpendicular to the insertion direction (ER), and the transmission elements (13a, 13b) are each formed by a lever which is mounted in the housing (11) so as to be rotatable about an axis perpendicular to the insertion direction (ER), wherein this axis of rotation of the lever is arranged in the insertion direction (ER) between the buttons (T1, T2) and the locking elements (12a, 12b), and the lever extends, starting from its axis of rotation, on the one hand towards the buttons (T1, T2) and on the other hand towards the locking elements (12a, 12b), wherein the end of each lever facing the buttons (T1, T2) is kinematically connected to a button (T1, T2), and the end facing the locking elements (12a, 12b) facing end of each lever is kinematically connected to a locking element (12a, 12b) and a linear movement of the keys (T1,T2) a rotational movement of the transmission elements (13a, 13b) about their axis of rotation and this rotational movement of the transmission elements (13a, 13b) causes a rotational movement of the locking elements (12a, 12b) about their axis of rotation., [5] Belt connecting element (1) according to one of the preceding claims 1 to 4, in which the housing (11) comprises a stop region (113) which projects beyond the buttons (T1, T2) in the insertion direction (ER) on the side facing away from the fastening region (111), wherein the stop region (113) is provided to adjust the relative position of these elements to one another in the insertion direction (ER) when inserting the belt connecting element (1) into a belt anchoring element (2). [6] Belt arrangement (100) with a belt connecting element (1) and a belt anchoring element (2), wherein the belt connecting element (1) is designed according to one of the preceding claims 1 to 5 and the belt anchoring element (2) comprises a receiving housing (21) with a receiving cavity (211) and an anchor element (22), wherein the receiving cavity (211) comprises an insertion opening (E) through which a partial region of the belt connecting element (1) can be inserted into the receiving cavity (211), and the insertion opening (E) is arranged opposite the anchor element (22) in the insertion direction (ER), and the anchor element (22) is provided for connection to a stationary point in a vehicle, wherein the receiving cavity (211) adjacent to the insertion opening (E) has two undercuts (H) opposite one another in a direction perpendicular to the insertion direction (ER), which undercuts are formed in the insertion direction (ER) by a Partial area of the receiving housing (21) are limited,wherein in the locking position, a partial area of the locking elements (12a, 12b) is introduced into the receiving cavity (211) and an engagement area (121) of a locking element (12a, 12b) in each case protrudes into an undercut (H) and a positive connection exists between the engagement areas (121) and the undercuts (H) in the insertion direction (ER). [7] Belt arrangement (100) according to the preceding claim 6, wherein the clear width of the insertion opening (E) in a direction perpendicular to the insertion direction (ER) is smaller than the maximum distance between the two engagement regions (121) in a direction perpendicular to the insertion direction (ER) in the locking position and the maximum distance between the undercuts (H) in a direction perpendicular to the insertion direction (ER) is greater than or equal to the maximum distance between the two engagement regions (121) in a direction perpendicular to the insertion direction (ER) in the locking position. [8] Belt arrangement (100) according to one of the preceding claims 6 or 7, wherein the maximum distance between the two engagement regions (121) in a direction perpendicular to the insertion direction (ER) in the release position is smaller than the clear width of the insertion opening (E) in a direction perpendicular to the insertion direction (ER), whereby in the release position there is no positive connection in the insertion direction (ER) between the engagement regions (121) and the undercuts (H). [9] Belt arrangement (100) according to one of the preceding claims 6 to 8, in which the movement of only one button (T1, T2) causes the movement of only one engagement region (121) relative to the housing (11), wherein only one of the two engagement regions (121) projects less far beyond the adjacent guide region (112) of the housing (11) in a direction perpendicular to the insertion direction (ER) than in the locking position, wherein the maximum distance between the two engagement regions (121) in a direction perpendicular to the insertion direction (ER) with only one engagement region (121) in the release position is greater than the clear width of the insertion opening (E) in a direction perpendicular to the insertion direction (ER) and thus there is a positive connection in the insertion direction (ER) between the belt connecting element (1) and the belt anchoring element (2). [10] Method for releasing the connection between a belt connecting element (1) and a belt anchoring element (2) of a belt arrangement (100) according to one of the preceding claims 6 to 9 starting from the locking position, comprising the method steps A) Applying a force to the two buttons (T1, T2) so that they are moved in a mounted manner in the housing (11), wherein the movement of the buttons (T1, T2) is translated via the two transmission elements (13a, 13b) into a movement of the two locking elements (12a, 12b) relative to the housing (11) until the engagement areas (121) of both locking elements (12a, 12b) are located outside the two undercuts (H) in the receiving cavity (211) and there is no positive connection in the insertion direction (ER) between the belt connecting element (1) and the belt anchoring element (2), B) Pulling the belt connecting element (1) out of the belt anchoring element (2) in the insertion direction (ER).

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