• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a releasable belt connector system (100) for releasably connecting a first and second belt end (770, 775), with a first connector element (110) and a second connector element (120). The first connector element has a first connection area (112) and a first belt attachment area (116) and the second connector element has a second connection area (122) and a second belt attachment area (126). The first and the second connection area are designed in such a way that the first and the second connector element can be connected to one another in a detachable and form-fitting manner via the two connection areas. The first strap end on the first strap attachment area and the second strap end on the second strap attachment area can be attached via a respective permanent attachment mechanism. The first and / or the second belt fastening area is designed in such a way that it has a predetermined breaking point (140) through which, in the event of a predetermined limit tensile force (150) being applied to the releasable belt connector system, an irreversible break occurs at the belt fastening area having the predetermined breaking point.
    公开号:AT523198A1
    申请号:T50799/2020
    申请日:2020-09-21
    公开日:2021-06-15
    发明作者:
    申请人:Draeger Safety Ag & Co Kgaa；
    IPC主号:
    专利说明:

    Detachable belt connector system
    The invention relates to a detachable belt connector system, a chin strap lock with two belt ends and a detachable belt connector system and a
    Hard hat with a chin strap lock.
    Detachable belt connector systems are known in various forms and for various applications. It is basically the task of a detachable belt connector system to reliably connect two belt ends to one another until this connection is released again by manually influencing the closed belt connector system.
    For special applications, such as the use of a releasable belt connector system on a fire helmet, the requirement is also known that the releasable belt connector system is used to protect against strangulation of a wearer of the fire helmet at a predetermined time
    Limit tensile force opens.
    To implement such a protection against strangulation, it is currently common to use a break ring, which breaks at the predetermined limit tensile force and thereby releases two belt ends.
    The object of the present invention is to provide an improved detachable belt connector system, in particular a detachable belt connector system that is particularly easy to manufacture.
    According to the invention, a releasable belt connector system, in particular a chin strap lock, for releasably connecting a first and second belt end to a first one is used to achieve this object
    Connector element and a second connector element proposed.
    The first connector element has a first connection area and a first belt attachment area.
    The second connector element has a second connection region and
    a second belt attachment area.
    The first and second connection areas are designed in such a way that the first and second connector elements can be detachably and positively connected to one another via the two connection areas, and the first strap end on the first strap attachment area and the second strap end on the second strap attachment area via a respective one permanent fastening mechanism can be attached. The first and / or the second belt fastening area is designed in such a way that it has a predetermined breaking point through which, in the event of a predetermined limit tensile force being applied to the releasable belt connector system, an irreversible break occurs at the belt fastening area having the predetermined breaking point, in particular an irreversible break for opening of the permanent fastening mechanism.
    In the context of the invention, it was recognized that to protect against strangulation when a predetermined limit tensile force is present, a mechanism that is particularly easy to produce can be provided by providing a predetermined breaking point on one of the two connector elements. It was also recognized that such a simple structure of the two connector elements is particularly reliable for releasing the two
    Belt ends when the predetermined limit tensile force is present.
    Because the predetermined breaking point is provided in at least one of the two belt fastening areas of a connector element of the belt connector system according to the invention, both the manual connection of the belt ends and the release of the belt ends with a predetermined limit tensile force by the two coordinated connector elements can be performed
    will be realized. In particular, this creates a separate part, such as a
    Break ring, avoided. This advantageously reduces the effort and complexity in the manufacture of the belt connector system.
    Furthermore, the simple structure of the detachable belt connector system according to the invention allows the first connector element to be produced in one piece
    and the second connector element.
    The release of the two belt ends is particularly reliable in the present case, since a force, for example a force acting on a helmet connected to the belt connector system, also acts reliably on the two connector elements of the belt connector system.
    The permanent fastening mechanism of the respective belt end on the respective belt fastening area is implemented, for example, by sewing. Furthermore, the permanent fastening mechanism can be glued, welded or the like. Preferably, at least one of the two permanent fastening mechanisms allows an adjustment of the belt end, for example in order to adjust the length of a belt over this belt end. For example, a corresponding binding of the belt end can also form a permanent fastening mechanism. According to the invention, the fastening mechanism is durable in that it does not come loose by itself, even with high tensile forces and even after several typical periods of use of the belt connector system. The permanent attachment mechanism may in some embodiments of the
    Belt connector system according to the invention, however, can be solved manually.
    The irreversible break at the predetermined breaking point can lead to a breaking out of a part of the corresponding belt fastening area or to a breaking open of a part of the corresponding belt fastening area.
    The form-fitting connection of the two connector elements can, according to the invention, be implemented by one of the many already known structures of connector elements, such as, for example, by a plug connection
    be.
    Preferably the predetermined limit tensile force is one between the two
    Pulling force applied to the ends of the belt.
    Preferred embodiments of the belt connector system according to the invention are described below.
    In a particularly preferred embodiment, the two connecting areas are designed in such a way that, in the interconnected state, they do not detach from one another in the event that the predetermined limit tensile force is applied. In this exemplary embodiment, it is ensured that the releasable belt connector system can withstand tensile forces up to the predetermined limit tensile force. This ensures a reliable connection between the two connector elements.
    In a further advantageous embodiment, the first connector element and the second connector element are each made in one piece. In this embodiment, the two connector elements can be produced in a particularly simple and cost-effective manner. In a variant of this embodiment, the first connector element and the second connector element are produced by an injection molding process or by a 3-D printing process. In this variant, a particularly fast and inexpensive production is possible.
    In a particularly preferred embodiment, the predetermined breaking point is formed in a breaking ring, an eyelet, a hook, a structural taper and / or a bending bar of the corresponding belt fastening area. The structure of the predetermined breaking point, in particular its material thickness, ensures that it leads to the irreversible break when the predetermined limit tensile force is applied. The exact static design of a structure of this type, given the predetermined limit tensile force, is known from many related technical areas and is not described in detail below. In a particularly simple variant of this
    Embodiment, the predetermined breaking point is provided in the break ring, the one
    Forms part of the first and / or second connector element and the structure of the break ring corresponds to that of the known break ring from the prior art.
    In a further embodiment, a respective predetermined breaking point is provided in the first connector element and in the second connector element, which leads to an irreversible break when a predetermined limit tensile force is applied. The provision of a plurality of predetermined breaking points enables a break in a particularly reliable manner when the predetermined limit tensile force is applied, even if this limit tensile force is applied from an angle that may hinder the break at one of the predetermined breaking points.
    In a particularly preferred embodiment, a region of lesser material thickness is formed at the predetermined breaking point compared to a material thickness that is spaced from the predetermined breaking point. As a result, the predetermined breaking point can be implemented in a particularly cost-effective and reliable manner. Such a change in the material thickness can be analyzed particularly reliably by known, existing software solutions, so that the irreversible breakage when the predetermined limit tensile force is applied
    reliably takes place.
    In a further embodiment, the predetermined breaking point is formed by a semicircular tapering, in particular by a semicircular tapering of a material surrounding an eyelet of the belt fastening area. In an alternative or supplementary embodiment, the predetermined breaking point is formed by an angular, in particular triangular or rectangular, taper.
    In a further embodiment, the predetermined breaking point is made of a different material than the corresponding connection area of the corresponding connector element. In this embodiment, the irreversible break when the predetermined limit tensile force is applied can arise particularly advantageously in that the connection between the two for
    the connector element used materials exactly at the predetermined
    Limit tensile force is released, in particular broken. Alternatively or additionally, the irreversible break when the predetermined limit tensile force is applied in this embodiment can result from the fact that the other material breaks when the predetermined limit tensile force is applied. In this alternative or supplementary embodiment, the predetermined breaking point is formed by the area of the other material which breaks as planned when the predetermined limit tensile force is applied.
    In a preferred embodiment, the releasable belt connector system is produced by an injection molding process. A particularly simple and inexpensive production is possible as a result.
    In a particularly preferred and advantageous embodiment, the two connector elements form a plug connection. The first connection area preferably forms a male part of the plug connection and the second connection area a female part of the plug connection. Such a structure of the connector elements advantageously enables already known structures to be used for the two connector elements in order to form the detachable belt connector system according to the invention in combination with at least one belt fastening area configured according to the invention with a predetermined breaking point. Furthermore, a plug connection can ensure a connection between the two connection areas in a particularly reliable manner. In a preferred variant of this embodiment, the two connection areas are designed in such a way that, in the interconnected state, they do not detach from one another in the event that the predetermined limit tensile force is applied. Ensuring a reliable connection between the two connection areas can be made possible in a particularly simple manner by means of a form-fitting connection provided via the plug connection.
    According to a further aspect of the invention, a chinstrap lock with two belt ends and a detachable belt connector system according to at least one of the preceding ones is used to achieve the above-mentioned object
    Embodiments proposed. Preferably are the first
    7127
    Belt end permanently attached to the first belt attachment area and the second belt end to the second belt attachment area. In such a structure, the chin strap lock can be used for securely fixing a helmet to a head. Preferably, the predetermined
    Limit tensile force is a tensile force applied between the two belt ends.
    According to a particularly advantageous aspect of the invention, a protective helmet, in particular a fire helmet, is proposed to solve the above-mentioned object, which has a chinstrap lock according to one of the
    having previous embodiments.
    A protective helmet, in particular a fire helmet, is often used under difficult to predict environmental conditions, so that sudden pulling forces on the protective helmet can also be expected. Therefore, the irreversible breakage occurring according to the invention when the predetermined limit tensile force is applied is particularly advantageous in order to avoid physical damage to the wearer of the protective helmet in the event of suddenly occurring tensile forces
    to prevent.
    Furthermore, the protective helmet according to the invention allows the two belt ends to be separated from one another even if manual opening of the connection between the two connection areas is not possible, for example due to a lack of manual accessibility or due to plastic deformation of the belt connector system.
    The invention will now be explained in more detail on the basis of advantageous exemplary embodiments shown schematically in the figures. From these show
    in detail: FIG. 1 shows a schematic representation of a first
    Embodiment of a releasable belt connector system according to the invention in an open state;
    2 shows a schematic representation of the first exemplary embodiment of the releasable belt connector system according to the invention in a closed state;
    Figs. 3, 4, 5 schematic representations of a respective belt fastening area with a predetermined breaking point of a respective embodiment of the detachable belt connector system according to the invention, the belt fastening area having two predetermined breaking points (Fig. 3), the predetermined breaking point being made of a different material than the rest of the connector element (Fig. 4) , the predetermined breaking point is formed on a hook of the belt fastening area (FIG. 5);
    6 shows a schematic representation of a belt fastening area with three predetermined breaking points of an exemplary embodiment of the detachable belt connector system according to the invention;
    7 shows a schematic representation of an exemplary embodiment of a chin strap lock according to a further aspect of the invention;
    8 shows a schematic representation of an exemplary embodiment of a protective helmet according to a particularly advantageous aspect of the invention.
    1 shows a schematic representation of a first exemplary embodiment of a releasable belt connector system 100 according to the invention in one
    open state.
    The releasable belt connector system is designed for the releasable connection of a first and a second belt end and for this purpose comprises a first
    Connector element 110 and a second connector element 120. The first connector element 110 has a first connection region 112
    and a first belt attachment area 116. The first
    Connection area 112 comprises a receptacle 113, which is the female part
    a plug connection 130 forms. Furthermore, the first connection area 112 comprises two opening arms 114 arranged laterally next to the receptacle 113, by means of which a manual opening of the plug connection 130 is realized. The first belt fastening area 116 comprises a first eyelet 117, via which the first belt end can be fastened via a permanent fastening mechanism. For example, the belt end can be pushed through the first eyelet 117 and sewn and / or glued, so that a permanent attachment is thereby realized.
    The second connector element 120 has a second connection area 122 and a second belt attachment area 126. The second connecting area 122 has a central web 123 from which two lateral locking arms 124 protrude. As a result of this structure, the second connection area 122 forms the male part of the plug connection 130. The locking arms 124 are designed such that after plugging the second connection area 122 into the receptacle 113 of the first connection area 112 protrude laterally from the web 123 in such a way that a Removal of the second connection area 122 from the first connection area 112 is blocked by the locking arms 124 and a corresponding blocking area (not shown) of the first connection area 112. The second belt fastening area 126 has a second eyelet 127, via which the second belt end can be fastened via a permanent fastening mechanism. For example, the belt end can be pushed through the second eyelet 127 and sewn and / or glued, so that a permanent fastening is thereby achieved
    is realized.
    As a result of the explained structures of the first connection area 112 and the second connection area 122, these two connection areas form the plug connection 130 via which the two connection areas are connected to one another
    can be releasably and positively connected.
    According to the invention, the first belt fastening area 116 is designed in such a way that
    that there is a predetermined breaking point 140 in the area of the first eyelet 117. These
    The predetermined breaking point 140 is realized by a tapered structure that forms an area of lesser material thickness. In the exemplary embodiment shown, the material in the area of the predetermined breaking point 140 has a minimum width B1 of at most 5 mm, in particular at most 3 mm, preferably at most 1.5 mm. Outside the predetermined breaking point 140, the material has a width B2 of more than 3 mm, in particular more than 4 mm. The exact form of the predetermined breaking point is selected according to the invention in such a way that if a predetermined limit tensile force 150 is applied to the detachable belt connector system 100, an irreversible break occurs at the first belt fastening area 116 having the predetermined breaking point 140. The predetermined limit tensile force 150 is preferably between 150 N and 250 N.
    The second belt fastening area 126 of the second connector element 120 has a significantly greater material thickness in the area of the second eyelet 127 than the first belt fastening area 116 in the area of the first eyelet 117. The material thickness in the area of the second eyelet 127 is at least 4 mm, in particular at least 5 mm, particularly preferably at least 6 mm. In this way, in the exemplary embodiment shown, it is ensured that the two belt ends are only separated via the predetermined breaking point 140
    can be enforced by the action of tensile force.
    The limit tensile force 150 acts in a direction opposite to a direction of movement for closing the plug connection 130.
    In the illustrated embodiment, the two connector elements are each made in one piece. They are also manufactured using an injection molding process. The detachable belt connector system is made from a plastic in the present case. Production from a plastic is particularly preferred for the belt connector system according to the invention because of the low production costs that this enables.
    The structure of the two connecting areas 112, 122 is selected such that
    the plug connection 130 is not in the connected state for the case of
    Applying the predetermined limit tensile force 150 releases. This ensures that the releasable belt connector system 100 remains reliably closed as long as it is not opened by manual actuation of the plug connection 130 or the predetermined limit tensile force 150
    is applied and leads to the breaking of the predetermined breaking point 140.
    In an exemplary embodiment not shown, at least one predetermined breaking point is provided on the first belt fastening area of the first connector element and at least one predetermined breaking point is provided on the second belt fastening area of the second connector element. There can be several predetermined breaking points on a single belt fastening area (cf. FIG. 6).
    FIG. 2 shows a schematic representation of the first exemplary embodiment of the releasable belt connector system 100 according to the invention in a closed state.
    In the illustrated closed state, the locking arms 124 protrude laterally from the receptacle 113 in such a way that they can be pulled out via a corresponding blocking area (not shown) in the area of the receptacle
    of the second connector element 120 from the receptacle 113 is prevented.
    By manually actuating the two opening arms 114 by lateral pressure, the locking arms 124 can be pressed against the web and thereby enable the plug connection 130 to be released.
    According to the invention, two belt ends connected to the two belt fastening areas 116, 126 can only be separated from the connected state of the plug connection 130 shown by manually loosening the plug connection or by irreversibly breaking the predetermined breaking point 140 via the predetermined limit tensile force.
    Figures 3, 4 and 5 show schematic representations of one
    respective belt fastening area with predetermined breaking point of a respective one
    Embodiment of the releasable belt connector system according to the invention, the belt fastening area 316 having two predetermined breaking points 340, 340 '(Fig. 3), the predetermined breaking point is made of a different material than the rest of the connector element 410 (Fig. 4), the predetermined breaking point 540 on a hook 560 of the Belt fastening area 516 is formed (Fig. 5).
    The provision of at least two predetermined breaking points 340, 340, as shown in FIG. 3, enables the belt fastening area 316 to be broken particularly reliably at at least one of these predetermined breaking points 340, 340 ‘. In the exemplary embodiment shown, the two predetermined breaking points 340, 340 ‘are arranged on an outer surface 318 of the belt fastening area 316.
    In FIG. 4, the belt fastening area 416 is formed from a different material than the rest of the connector element 410. As a result, the first eyelet 417 is formed entirely from this other material. According to the invention, the other material is selected such that it breaks at the predetermined limit tensile force and / or that the material connection between the other material and the material from which the remaining connector element 410 is formed breaks open at the predetermined limit tensile force.
    In FIG. 5, the first belt fastening area 516 has a hook 560 for fastening a belt end. The predetermined breaking point 540 is arranged in the area of the hook 560 which connects a front web 565 of the hook 560 to the rest of the belt fastening area 516. In an exemplary embodiment not shown, the predetermined breaking point is arranged in another area of a hook within the belt fastening area.
    6 shows a schematic representation of a belt fastening area 616 with three predetermined breaking points 640, 640, 640 ″ of a particularly preferred one
    Embodiment of the releasable belt connector system according to the invention.
    Two of the predetermined breaking points 640, 640 ‘are shown in the
    Exemplary embodiment on an inner surface 619 of the first eyelet 617
    and a further predetermined breaking point 640 ″ is arranged on an outer surface 618 of the first eyelet 617. The further predetermined breaking point 640 ″ lies spatially between the two other predetermined breaking point 640, 640 ‘. For the structure of the predetermined breaking points 640, 640 ', 640 ″ shown, it is possible to determine particularly reliably, in particular using known static calculation methods, how a respective material thickness must be selected so that, when the predetermined tensile force is applied, an irreversible break at at least one of these predetermined breaking points 640, 640 ', 640 "
    he follows.
    The predetermined breaking points 640, 640 ‘, 640 ″ are formed in the illustrated embodiment via semicircular tapers of the material surrounding the eyelet 617. In an exemplary embodiment not shown, at least one taper for providing the predetermined breaking point is angular, in particular rectangular or triangular.
    Further arrangements of a plurality of predetermined breaking points are possible according to the invention in order to achieve an irreversible break at at least one of these when the predetermined limit tensile force is applied
    Predetermined breaking points arise.
    The provision of the predetermined breaking point on the first connector element in the context of the exemplary embodiments shown is only an example. In an exemplary embodiment not shown, the predetermined breaking point is formed on the second connector element.
    The provision of a plug connection in the illustrated embodiments is only an example. In an embodiment not shown, it is the connection between the two
    Connector elements around a releasable clamping connection.
    7 shows a schematic illustration of a chin strap lock 700 according to a further aspect of the invention.
    The chin strap lock 700 includes the releasable belt connector system 100, which is shown in FIGS. 1 and 2. The predetermined breaking point according to the invention is covered by the first belt end 770, which is arranged on the first belt fastening area 116.
    Furthermore, the chinstrap lock 700 comprises the second belt end 775, which is arranged on the second belt fastening area 126. The strap ends are each made by sewing the strap end onto itself
    permanently attached to the respective belt fastening area 116, 126.
    The predetermined limit tensile force is typically a force that pulls the two belt ends 770, 775 away from each other and thereby a force on the
    Exercises predetermined breaking point of the releasable belt connector system 100.
    8 shows a schematic representation of a protective helmet 800 according to a particularly advantageous aspect of the invention.
    The protective helmet 800 comprises the chin strap lock 700 shown in FIG. 7 and thus also the releasable belt connector system 100 shown in FIGS. 1 and 2.
    According to the invention, the protective helmet can be, for example, a fire helmet, a motorcycle helmet, a bicycle helmet or the like. The protective helmet 800 is particularly preferably a fire helmet.
    According to the invention, a heavy load on the protective helmet 800 can lead to a force acting between the two strap ends 770, 775. This force can lead, for example, to a strangulation of the wearer of the protective helmet, so that, according to the invention, when the predetermined limit tensile force is reached, the predetermined breaking point of the detachable belt connector system 100 breaks, thereby releasing the two belt ends. This prevents persistent strangulation of the wearer of the protective helmet 800 according to the invention.
    The present plug connection 130 is particularly advantageously designed to reliably connect the two connector elements 110, 120 of the detachable belt connector system 100 to one another even when the predetermined limit tensile force is applied. This ensures that the protective helmet 800 is securely fixed on the wearer's head and thereby fulfills its protective function for the wearer. As a result, the releasable belt connector system 100 according to the invention for the protective helmet 800 according to the invention can ensure that the protective helmet 800 is reliably fixed on the head and that if a force is applied, in particular if a force occurs suddenly, there is a risk of strangulation of the wearer by breaking the predetermined breaking point if the
    predetermined limit tensile force is prevented.
    List of reference symbols
    100 detachable belt connector system 110, 410 first connector element
    112 first connection area
    113 recording
    114 opening arm
    116, 316, 416, 516, 616 first belt fastening area 117, 417, 617 first eyelet
    120 second connector element
    122 second connection area
    123 bridge
    124 lock arm
    126 second belt fastening area 127 second eyelet
    130 connector
    140, 340, 340 °, 540 predetermined breaking point
    640, 640 ‘, 640"
    150 predetermined limit tensile force 318, 618 outer surface
    560 hooks
    565 front bar of the hook
    619 inner surface
    700 chinstrap lock
    770 first strap end
    775 second strap end
    800 hard hat
    B1 minimum width at the predetermined breaking point B2 width outside the predetermined breaking point
    权利要求:
    Claims (11)
    [1]
    1. Detachable belt connector system (100), for detachably connecting a first and second belt end (770, 775), with a first connector element (110) and a second connector element (120),
    wherein the first connector element (110) has a first connection area (112) and a first belt attachment area (116),
    and wherein the second connector element (120) has a second connection region (122) and a second belt attachment region (126),
    and wherein the first and second connection areas (112, 122) are designed in such a way that the first and second connector elements (110, 120) can be connected to one another in a detachable and form-fitting manner via the two connection areas (112, 122),
    and wherein the first strap end (770) can be attached to the first strap attachment area (116) and the second strap end (775) can be attached to the second strap attachment area (126) via a respective permanent attachment mechanism,
    and wherein the first and / or the second belt fastening area (116, 126) is designed in such a way that it has a predetermined breaking point (140) through which, in the event of a predetermined limit tensile force (150) being applied to the releasable belt connector system (100), an irreversible Break occurs at the belt fastening area (116) having the predetermined breaking point (140).
    [2]
    2. Detachable belt connector system (100) according to claim 1, wherein the two connection areas (112, 122) are designed such that they do not detach from one another in the interconnected state in the event that the predetermined limit tensile force (150) is applied.
    [3]
    3. Detachable belt connector system (100) according to claim 1 or 2, wherein
    the first connector element (110) and the second connector element (120) are each formed in one piece.
    [4]
    4. Detachable belt connector system (100) according to at least one of the preceding claims, wherein the predetermined breaking point (140) is formed in a breaking ring, an eyelet (117), a hook (560), a structural taper and / or a bending beam of the corresponding belt fastening area (116)
    is.
    [5]
    5. Detachable belt connector system (100) according to at least one of the preceding claims, wherein a region of lesser material thickness is formed at the predetermined breaking point (140) compared to a material thickness that is spaced from the predetermined breaking point (140).
    [6]
    6. Detachable belt connector system (100) according to at least one of the preceding claims, wherein the predetermined breaking point (140) is made of a different material than the corresponding connection area (112) of the corresponding connector element (110).
    [7]
    7. Detachable belt connector system (100) according to at least one of the preceding claims, wherein the detachable belt connector system (100) is produced by an injection molding process.
    [8]
    8. Detachable belt connector system (100) according to at least one of the preceding claims, wherein the two connector elements (110, 120) form a plug connection (130), and wherein the first connection area (112) is a male part of the plug connection (130) and the second connection area (122) forms a female part of the plug connection (130).
    [9]
    9. Chin strap lock (700) with two strap ends (770, 775) and a releasable strap connector system (100) according to at least one of the preceding claims, wherein the first strap end (770) on the first strap attachment area (116) and the second strap end (775) are permanently attached to the second strap attachment region (126).
    [10]
    10. Chin strap lock (700) according to claim 9, wherein the predetermined limit tensile force (150) is a tensile force applied between the two belt ends (770, 775).
    [11]
    11. Safety helmet (800), in particular a fire helmet, with a chin strap lock (700) according to claim 9 or 10.
    类似技术:
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    同族专利:
    公开号 | 公开日
    DE102019008045A1|2021-05-20|
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    US20110061211A1|2009-09-17|2011-03-17|Joseph Anscher|Removable buckle|
    US9526301B1|2015-06-10|2016-12-27|Jill Sloan|Adaptable buckle system|
    JP2020089630A|2018-12-07|2020-06-11|Ykk株式会社|Plug for buckle, and buckle|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102019008045.9A|DE102019008045A1|2019-11-20|2019-11-20|Detachable belt connector system|
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