Classifications

• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
  • E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
  • E05C19/10—Hook fastenings; Fastenings in which a link engages a fixed hook-like member
  • E05C19/12—Hook fastenings; Fastenings in which a link engages a fixed hook-like member pivotally mounted around an axis
  • E05C19/14—Hook fastenings; Fastenings in which a link engages a fixed hook-like member pivotally mounted around an axis with toggle action

Definitions

• the invention relates to a toggle fastener for tool-free assembly on two components to be connected to one another, comprising: a first fastening element for connecting the toggle fastener to the first component, a second fastener for connecting the toggle fastener to the second component, and a clamping lever for actuating the toggle fastener, wherein the clamping lever is movably connected to at least one of the two fastening elements.
• the invention also relates to a system for the tool-free assembly of a tension lock on two components to be connected to one another, comprising: a tension lock as described above, and two components to be connected to one another.
• Tension locks in various configurations are known from the prior art. Such latches are used to detachably connect two components together, such as a door with a door frame. To actuate them, latches often have a clamping lever that is designed in such a way that it can only be moved from the closed (“clamped”) position to the open (“unclamped”) position with a certain amount of force, thus preventing unintentional opening .
• toggle fasteners attach the toggle fasteners to the components to be connected to one another by the toggle fastener.
• Special tools are often required for attachment, for example to produce rivet connections or to produce screw connections.
• some types of connections eg welded connections, are very difficult to produce with thin-walled components such as sheet metal.
• the invention is therefore based on the object of designing and developing an above-described toggle fastener in such a way that it can be reliably mounted on the components to be connected to one another by the toggle fastener without the use of tools.
• first fastening element and/or the second fastening element has at least one connecting means for producing a tool-free, in particular form-fitting, connection with a cutout provided in the component.
• the invention relates to a toggle fastener that can be mounted without tools on two components that are to be connected to one another.
• the toggle latch includes a first fastener for connecting the toggle latch to the first component and a second fastener for connecting the toggle latch to the second component.
• the two fastening elements thus serve to achieve a connection of the toggle fastener to the components to be connected. Since the components often have flat surfaces, it is preferred that the fastening elements also each have at least one flat (support) surface for resting on the components to be connected.
• the latch also includes a clamping lever for actuating the latch. This clamping lever is movably connected to at least one of the two fastening elements, for example via an articulated rocker. The clamping lever can also be connected to both fastening elements, one of these two connections should be detachable so that the clamping lock can be opened completely.
• the first fastening element and/or the second fastening element has at least one connecting means for producing a tool-less mountable, in particular form-fitting, connection with a cutout provided in the component, mountable without tools Connection should therefore be achieved by appropriate design of the fasteners.
• protruding connecting means can be provided for this purpose on the fastening elements, which can be inserted into the components to be connected (or into cutouts provided there).
• a reliable connection in particular a positive connection (eg a snap connection) and/or a non-positive connection (eg a clamp connection) can be achieved.
• the components to be connected only have to be prepared by punching or cutting appropriately shaped sections.
• connection is preferably a detachable connection, so that the toggle fastener can be dismantled again if necessary.
• the connecting means are preferably arranged in such a way that they are surrounded or covered by the clamping lever when the clamping lever is in the closed position. This has the advantage that the connecting means are only accessible from the rear or from the inside in the assembled state with the clamping lever closed. In this way, the toggle fastener can fulfill the function of a lock (e.g. by locking the toggle lever), since unauthorized disassembly from the outside is not possible.
• At least one connecting means is designed as a locking hook.
• the design as a hook represents a constructively simple and reliable way of creating a connection, in particular a form-fitting connection.
• the locking hook can be guided through a cutout in one of the components to be connected in order to grip the edge of the cutout from its rear side.
• a further embodiment of the tension lock provides that at least one connecting means is designed as a mounting bracket with a spring element.
• the configuration as an assembly stand with a spring element also represents a structurally simple and reliable possibility of creating a connection, in particular a positive and/or non-positive connection.
• the assembly stand can be placed in a cutout in one of the components to be connected be introduced, the spring element arranged on the mounting bracket being elastically deformed due to its elasticity when passing through the cutout and springing back after passing through (ie in the mounted position) and engaging behind the edge of the cutout from the rear of the component.
• Each fastening element preferably has a locking hook and a mounting bracket with a spring element, with the locking hook and the mounting bracket with the spring element preferably being arranged on opposite sides and in opposite directions, i.e. "back to back". opposite sides of the cutouts fixed in their position, the fixation on one side being effected via the locking hooks and the fixing on the other (opposite) side being effected via the mounting brackets and their spring elements.
• an articulated rocker which is rotatably connected with its first end to the tensioning lever and which is rotatably connected with its second end to one of the two fastening elements.
• a double pivoting bearing can be achieved by means of an articulated rocker. If one of the ends of the articulated rocker (e.g. the end mounted on the fastening element) is also arranged in a stationary manner, it can also be achieved that the other end of the articulated rocker (e.g. the end mounted on the clamping lever) is forced to move along a circular path. In this way it can be achieved that the clamping lever must exceed a "dead point" when closing, which means that the clamping lever can then remain in its closed position.
• the clamping lever and/or one of the two fastening elements have a receptacle for the rotatable mounting of one of the ends of the articulated rocker.
• a recording is provided on the clamping lever and / or on one of the two fasteners, the ends of the Articulated rocker in a simple manner rotatably connected to the clamping lever and / or with the fastener.
• the mount can be designed, for example, in such a way that the ends of the articulated rocker can be pressed into the mounts and held there by a snap connection so that they can rotate.
• a further embodiment of the clamping closure provides that the clamping lever has a projection and that one of the two components has a recess so that the projection can be inserted into the recess to create a detachable connection.
• a positive-locking, detachable connection can be achieved in a simple manner by means of a projection and a recess. In particular, it can be achieved that the projection hooks into the recess (like a hook). This has the advantage that the greater the tensile load caused by the clamping lever, the better the connection holds together.
• the clamping lever has at least one gripping element.
• the gripping element can be, for example, a recess or a projection.
• the handle element is intended to facilitate gripping and lifting of the clamping lever and is therefore preferably arranged at the end of the clamping lever which is intended to be lifted by the user.
• the toggle fastener is made of plastic and/or metal.
• the clamping lever and/or the fastening elements are made of plastic and/or metal. Manufacturing from plastic is inexpensive and allows flexible shaping, while manufacturing from metal allows a very high level of rigidity and tensile strength to be achieved.
• the different parts of the toggle fastener can also be made from different materials.
• the system is characterized in that the two components each have a cutout, optimally matched to the toggle fastener and especially prepared for the fasteners of the toggle fastener (e.g. a fastener hook or a mounting bracket with a spring element) to engage in the cutouts.
• the fasteners of the toggle fastener e.g. a fastener hook or a mounting bracket with a spring element
• the two components are made of sheet metal and the cutouts are approximately rectangular in shape.
• the connection of a toggle fastener to thin-walled components made of sheet metal is particularly demanding, since some joining processes (e.g. welded joints) are difficult to produce with thin-walled materials.
• a form-fitting connection can be created in a simple manner, for example when the connecting means of the toggle fastener (e.g. a locking hook or a mounting bracket with a spring element) engage in the cutouts.
• Fig. 2 the toggle fastener from Fig. 1 in a sectional view along the in
• Fig. 4 the latch from Fig. 3 in the open position
• Fig. 5 the toggle fastener from Fig. 3 in the dismantled position.
• the toggle fastener 1 serves to detachably connect a first component 3A to a second component 3B.
• One of the two components 3A can be a door, a flap or a cover, for example, while the second component 3B can be a frame of a door or a cabinet, for example. In the example shown in FIG.
• the two components 3A, 3B are made from a thin-walled metal sheet whose thickness d can be in the range between 0.8 mm and 2.5 mm, for example. If the two components 3A, 3B are not made of sheet metal but of plastic, the thickness d can also be up to 4 mm.
• the tensioning lever 2 has a plurality of gripping elements 4 at one end, which can be indentations or projections, for example, which make it easier to grip and lift the tensioning lever 2 .
• FIG. 2 shows the toggle fastener 1 from FIG. 1 in a sectional view along the sectional plane II-II shown in FIG. Areas of the toggle fastener 1 that have already been mentioned are provided with corresponding reference symbols in FIG. 2 . In FIG.
• the toggle fastener 1 also has a first fastening element 5A and a second fastening element 5B in addition to the clamping lever 2 .
• the first fastening element 5A serves to create a connection with the first component 3A, for which purpose the first fastening element 5A has a locking hook 6A and a mounting bracket 7A with an elastic spring element 8A.
• the second fastening element 5B serves to create a connection with the second component 3B, for which purpose the second fastening element 5B also has a locking hook 6B and a mounting bracket 7B with an elastic spring element 8B.
• the connection of the two fastening elements 5A, 5B to the two components 3A, 3B will be discussed in more detail in connection with the following figures.
• the toggle fastener 1 shown in FIG. 2 also has an articulated rocker 9 via which the toggle lever 2 is movably connected to the first fastening element 5A.
• both the clamping lever 2 and the first fastening element 5A each have a receptacle 10 in which the articulated rocker 9 is rotatably mounted, with the first end 9' of the articulated rocker 9 being mounted in the first receptacle 10' and the second end 9 "The articulated rocker 9 in the second receptacle 10" is mounted.
• the articulated rocker 9 has a longitudinal axis L9, which runs through the first end 9' and through the second end 9'' of the articulated rocker 9.
• the clamping lever 2 can also be connected to the second fastening element 5B, for which purpose the clamping lever 2 is connected to its grip elements 4 opposite end has a projection 11 and for which purpose the second fastening element 5B has a recess 12 in which the projection 11 can engage in order to create a positive-releasable connection.
• the projection 11 could be provided on the second fastening element 5B and the Recess 12 could be provided on the clamping lever 2.
• FIG. 3 shows the toggle fastener 1 from FIG. 1 in a sectional view along the sectional plane III-III drawn in FIG. 1 in the closed position. Areas of the toggle fastener 1 that have already been mentioned are also provided with corresponding reference symbols in FIG. 3 .
• the first component 3A has a first cutout 13A, in which the locking hook 6A and the assembly stand 7A engage with its elastic spring element 8A of the first fastening element 5A and a form-fitting - detachable - connection between the first component 3A and the first fastening element 5A.
• the second component 3B has a second cutout 13B, in which the locking hook 6B and the mounting bracket 7B engage with its elastic spring element 8B of the second fastening element 5B and a form-fitting - detachable - connection between the second component 3B and the second fastening element generate 5B.
• the closed position of the latch 1 shown in Fig. 3 is characterized in that the clamping lever 2 has a longitudinal axis L 2 which encloses a clamping lever angle ⁇ 1 with the surfaces of the first component 3A and the second component 3B, which is in the range between 0 ° and 15 °, in particular in the range between 0 ° and 10 °.
• the cocking lever 2 can be moved from the closed position (shown in FIG. 3) to the open position (shown in FIG. 4) by lifting the cocking lever 2 in the area of its handle elements 4. This leads to a rotational movement of the first end 9' of the articulated rocker 9 along a circular path K, the center M of which is formed by the second end 9" of the articulated rocker 9.
• the articulated rocker 9 is arranged in such a way that its first end 9* is arranged lower (i.e. closer to the surfaces of the first component 3A and the second component 3B) than its second end 9", so that the longitudinal axis L 9 of the articulated rocker 9 - from the first end 9' to the second end 9" running - rising.
• FIG. 4 shows the toggle fastener 1 from FIG. 3 in the open position.
• areas of the tension lock 1 are also in Fig. 4 with corresponding provided with reference numbers.
• the open position differs from the closed position by a different position of the clamping lever 2:
• the longitudinal axis L 2 encloses a clamping lever angle ⁇ 2 with the surfaces of the first component 3A and the second component 3B, which is larger than 10°, in particular greater than 15° and is therefore steeper than in the closed position.
• the position of the articulated rocker 9 is changed; it is arranged in such a way that its first end 9' is arranged higher (i.e.
• FIG. 4 it can also be seen that lifting the clamping lever 2 results in the projection 11 of the clamping lever 2 being pushed out of the recess 12 of the second fastening element 5B, as a result of which the positive connection between the second fastening element 5B and the clamping lever 2 is released can be, so that the clamping lever 2 can be lifted from the second fastening element 5B and then only (via the articulated rocker 9) is connected to the first fastening element 5A.
• first fastening element 5A and the second fastening element 5B can be connected to one another (closed position of the clamping lever 2) and separated from one another (open position of the clamping lever 2).
• the separation of the projection 11 and the recess 12 when the clamping lever 2 is lifted is a consequence of the movement of the first end 9' of the articulated rocker 9 along the circular path K, which means that the projection 11 initially moves deeper into the recess when the clamping lever 2 is lifted 12 is pulled until a "dead center" (longitudinal axis L 9 of the articulated rocker 9 parallel to the surfaces of the first component 3A and the second component 3B) is reached, after which the projection 11 is pushed out of the recess 12 again.
• FIG. 5 shows the toggle fastener 1 from FIG. 3 in the dismantled position. Areas of the toggle fastener 1 that have already been mentioned are also provided with corresponding reference symbols in FIG. 5 . In the dismantled position, the individual components of the toggle fastener 1 can be seen more clearly.
• the two fastening elements 5A, 5B can be connected to the two components 3A, 3B:
• the two components 3A, 3B there are cutouts 13A, 13B which are preferably approximately rectangular in shape (the width can be in the range be between 10 mm and 15 mm and the length can for example be in the range between 15 mm and 25 mm).
• the two fastening elements 5A, 5B have connecting means, which can be designed, for example, as locking hooks 6A, 6B and mounting brackets 7A, 7B with spring elements 8A, 8B.
• connection is created by first inserting the locking hooks 6A, 6B into the cutouts 13A, 13B in such a way that they engage behind the edges of the cutouts 13A, 13B from the rear of the two components 3A, 3B.
• the mounting brackets 7A, 7B are then inserted into the cutouts 13A, 13B, with the spring elements 8A, 8B arranged on the mounting brackets 7A, 7B springing in the direction of the locking hooks 6A, 6B and backwards due to their elasticity when passing through the cutouts 13A, 13B the passage (ie in the assembled position) spring back and engage behind the edges of the cutouts 13A, 13B from the back of the two components 3A, 3B.
• the fastening elements 5A, 5B are fixed in their position on two opposite sides of the cutouts 13A, 13B, the fixing being effected on one side via the locking hooks 6A, 6B and the fixing on the other (opposite) side via the assembly stands 7A, 7B and their spring elements 8A, 8B.
• the locking hooks 6A, 6B could each be replaced by a mounting bracket 7A, 7B and a spring element 8A, 8B arranged thereon, so that each fastening element 5A, 5B can have two mounting brackets 7A, 7B and two clamping hooks 8A, 8B.
• K circular path
• L 2 longitudinal axis (of the clamping lever 2)
• L 9 longitudinal axis (of the articulated rocker 9)

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• Mechanical Engineering (AREA)
• Clamps And Clips (AREA)

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• 2020
  • 2020-09-28 DE DE102020125243.9A patent/DE102020125243B3/de active Active
• 2021
  • 2021-09-09 EP EP21782886.2A patent/EP4217566A1/de active Pending
  • 2021-09-09 US US18/246,753 patent/US20230340816A1/en active Pending
  • 2021-09-09 WO PCT/EP2021/074772 patent/WO2022063588A1/de active Application Filing
  • 2021-09-09 JP JP2023543265A patent/JP7477728B2/ja active Active
  • 2021-09-09 CN CN202180065491.6A patent/CN116249818A/zh active Pending

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