Grill locking device

Abstract

The invention relates to a grate locking device (3) for a grate (4) of a drainage channel comprising: - a housing (30) for insertion into at least one mesh of the grate (4), wherein the housing (30) has a side recess (301); - an actuating rocker (31) pivotably mounted in the housing (30) about a transverse axis (Q), which has a pressure section (32) on one side and a pull section (33) on the other side, wherein the pressure section (32) forms a support lever (34) on an underside for supporting the actuating rocker (31) against a channel body (2) and the pull section (33) has a release section (33a) and a locking section (33b) on an underside;- a locking rocker (35) pivotably mounted in the housing (30) about a vertical axis (H), which has a locking section (35b) and a unlocking section (35a), which, when the actuating rocker (31) is pivoted, respectively interact with the locking section (33b) and the unlocking section (33a) of the actuating rocker (31) such that a blocking section (36) of the locking rocker (35) can be pivoted through the side recess (301) to engage a locking recess (70) of the channel body (2) for locking the grate (4) to the channel body (2) or to unlock the grate (4) from the locking recess (70).

Description

[0001] The invention relates to a grate locking device according to claim 1 for a grate of a drainage channel.

[0002] A grate locking device is known, for example, from JP S62 169 043 U. The known grate locking device comprises a housing with a side recess. A bolt is arranged in the housing, which, when installed, is rotatable about an axis in the longitudinal direction of a drainage channel.

[0003] Another rust locking device is disclosed in WO 2004 / 015212 A2.

[0004] WO 2004 / 015212 A2 also provides for pivoting about a longitudinal axis of a bar.

[0005] Drainage channels for terraces, balconies, flat roofs, or facades are a well-established technology and are frequently used for accessible roofs and balconies, especially roof terraces. Unlike conventional linear drainage, the water is not channeled lengthwise along the channel, but rather through drainage slots perpendicular to the channel onto the roof surface. The water is then directed to a drain via the sealed roof waterproofing.

[0006] Height-adjustable drainage channels are also a common design. These are often made of metal. The height adjustment mechanism of conventional drainage channels frequently utilizes adjustable feet, the length or height of which can be adjusted via interlocking threaded rods and threaded sockets. Adjusting the height of a drainage channel may be necessary to compensate for unevenness in the subfloor or to align the top of the drainage channel, particularly a grate, flush with the surrounding floor covering.

[0007] Well-known height-adjustable drainage channels have the disadvantage of being complex to install and difficult or imprecise to adjust the height. Furthermore, metal channel systems are expensive to manufacture and limited in terms of design options.

[0008] It is advantageous to provide a height-adjustable drainage channel that is quick and easy to install and simple to adjust in height. In particular, the accuracy of the height adjustment should be improved.

[0009] A height adjustment device for a drainage channel, especially for draining facades or terraces, is particularly advantageous, comprising a support body, especially made of plastic, and at least one adjustment unit, wherein the adjustment unit comprises: a first adjusting element extending along an adjustment direction, which is axially displaceable in the support body and has at least one bearing surface for a channel body of the drainage channel, a second adjusting element fixed relative to the support body in the adjustment direction, a coupling element which is movable back and forth between a decoupling position in which the first adjusting element and the second adjusting element are not coupled to each other, and a coupling position in which the first adjusting element and the second adjusting element are coupled to each other, wherein in the coupled position the first adjusting element and the second adjusting element interact via the coupling element as a transmission, in particular as a screw transmission, especially for the axial fine adjustment of the first adjusting element.

[0010] One idea is to propose a height adjustment device for drainage channels that allows for both coarse and fine adjustment of the channel's height. When the coupling element is in a disengaged position, a coarse height adjustment (coarse adjustment) can be performed, and when the coupling element is in a coupled position, a finer height adjustment (fine adjustment or readjustment) can be made. Specifically, the height adjustment device is initially adjustable (manually) by applying (direct) force to the channel body (lowering or raising it), causing the first adjustment element to move axially. In a second step, a more precise (finer) height adjustment can be achieved by actuating the adjustment unit via a gearbox.The adjustment direction can be understood as a vertical direction of the drainage channel, i.e., in particular a direction (vertical) upwards or downwards.

[0011] Fine adjustment is achieved in particular via a gearbox in which the first and second adjusting elements are kinematically coupled to each other via the coupling element. The first and second adjusting elements, as well as the coupling element, can have gear elements such as threads or teeth that mesh with each other. In particular, the first and second adjusting elements support each other in the adjustment direction (axially) via the coupling element in the coupled position. The first and second adjusting elements, together with the coupling element in the coupled position, form in particular a threaded drive. In particular, the gearbox converts a rotational movement of one adjusting element into an (axial) linear movement of the other or the same adjusting element.

[0012] A height adjustment device has the advantage of being easily connected to a channel body, particularly by placing the channel body onto the height adjustment device (from above). Furthermore, simple and precise height adjustment is possible in a two-stage process (coarse adjustment and fine adjustment).

[0013] In an advantageous embodiment, the first adjusting element and / or the second adjusting element are rotatably mounted in the support body, particularly about longitudinal axes extending in the adjustment direction. This allows the adjusting unit to be actuated by a rotary movement of the first and / or second adjusting element, for example, by a screwdriver used by the installer.

[0014] In an advantageous embodiment, the coupling element has first gear elements, in particular an internal thread, and the first adjusting element or the second adjusting element has second gear elements, in particular an external thread, wherein in the coupling position the first gear elements and the second gear elements mesh with each other. Gear elements can include not only threads but also teeth.

[0015] In an advantageous embodiment, the coupling element is formed integrally with the first adjusting element or the second adjusting element, in particular as a radial projection which has an internal thread at least partially on a threaded surface. The threaded surface can be in the form of a half-nut or as any circumferential section of a thread. In a one-piece embodiment, the coupling element can be moved from the coupling position to the decoupling position, and vice versa, by a movement (actuation), in particular a rotation, of the first or second adjusting element.

[0016] In an advantageous embodiment, the support body forms a receiving structure extending in the adjustment direction, in which the adjustment unit is received, wherein the receiving structure particularly forms a longitudinal guide for the first adjustment element. The receiving structure particularly forms a cylindrical cavity into which the first and the second adjustment element (from above) can be inserted. A receiving structure can be molded onto a support body made of plastic, or attached as a separate component to a base plate of the support body, in particular inserted into it.

[0017] In an advantageous embodiment, the first adjusting element has a first longitudinal groove for locking the coupling element in the coupled position and preferably a second longitudinal groove for locking the coupling element in the uncoupled position, wherein the receiving structure particularly has a detent projection for engaging in the first longitudinal groove or second longitudinal groove. A locking mechanism can be understood as an anti-rotation device that can be released against a surmountable resistance (by rotating the adjusting element). The first longitudinal groove has the advantage that the first adjusting element is held in a defined decoupled (free) position during height adjustment and does not impede the height adjustment process (coarse adjustment). The second longitudinal groove has the advantage that the coupling element is held firmly in the coupled position to ensure interaction of the transmission components.Longitudinal notches prevent unintentional rotation of the first adjustment element relative to the mounting structure. The detent can be designed as a rib, in particular as a flexible longitudinal rib.

[0018] In an advantageous embodiment, the second adjusting element has a circumferential groove into which, in particular, a collar section formed by the receiving structure, at least partially circumferential, engages. The second adjusting element is axially fixed but rotatable about its longitudinal axis within the receiving structure via this circumferential groove. The collar section is, in particular, an inwardly projecting edge of the receiving structure.

[0019] In an advantageous embodiment, the first adjusting element and / or the second adjusting element has an engagement profile at its end for rotating the first or second adjusting element, particularly from the side of the channel body. The first and / or second adjusting element is rotatable about its respective longitudinal axis by means of the engagement profile, for example, a transverse slot, internal hexagon, square, or the like, particularly from above.

[0020] In an advantageous embodiment, the support body has two opposing, and in particular identical, receiving structures, each of which houses an adjustment unit. Specifically, the height adjustment device is symmetrical about a center point of the support element, and the adjustment units are in particular identical. This allows a height adjustment device to be mounted on a channel body in both possible transverse orientations.

[0021] In an advantageous embodiment, at least one spring acting in the adjustment direction, in particular a coil spring, is incorporated in the support body. This spring is preferably connected to a base plate of the support body by means of locking lugs, particularly for supporting the channel body while the coupling element is in the uncoupled position. The spring ensures that the underside of the channel body can be supported by the spring force during coarse adjustment. With the coupling element in the uncoupled position or with the adjustment unit set to a sufficiently low height, the channel body can be pressed (manually) against the spring force towards the support body to a desired height position (coarse adjustment).This simplifies the installation of the gutter system, as the installer, especially when leveling the entire gutter run, does not have to lift the whole run (multiple interconnected gutter sections) against gravity. Instead, thanks to spring forces, they only need to gently (manually) push the run down to achieve the initial rough adjustment. This significantly simplifies the installer's work on the construction site. The installer can use an adjacent floor covering (e.g., slabs or tiles) as a height stop for the initial rough adjustment by placing an alignment tool (ruler, wooden batten, etc.) on it. The required height can then be fine-tuned using the height adjustment mechanism.

[0022] In an advantageous embodiment, the first adjusting element has at least one fastening element, in particular locking elements, at an upper end for a detachable, preferably rotationally non-rotatable, connection to the channel body, in particular to the edge of a through-opening of the receiving dome of the channel body. Preferably, fastening elements are provided on both sides, which are in particular designed as (top-beveled) clip connectors.

[0023] In an advantageous embodiment, the support body has lateral guide columns for receiving in corresponding guide recesses of the channel body, wherein the guide columns in particular have locking lugs for releasable locking with corresponding openings (locking openings) of the channel body. The locking lugs enable the height adjustment device to be fixed to the channel body despite the acting spring force, for example for transport.

[0024] In an advantageous embodiment, the base plate of the support body has receiving openings for coupling, preferably locking, height-adjustable elements on the underside of the support body. These additional height-adjustable elements allow for height adjustments in defined increments that exceed the adjustment range of the height-adjustment device.

[0025] In an advantageous embodiment, at least one riser element, and optionally several riser elements stacked on top of each other, are connected to the underside of the support body. Such an embodiment allows for a large height adjustment of a drainage channel. In particular, each riser element has at least one support element, preferably conically shaped. Furthermore, at least one locking element can be provided, which can be integrally connected to a support element. Support elements allow (vertical) forces acting on the support body to be transferred into the subsoil, while locking elements prevent the riser element or the support body above it from lifting off. The drop elements function as spacers that define a specific height difference.

[0026] The aforementioned problem is also solved in particular by a drainage channel, especially for draining facades or terraces, comprising a channel body, in particular made of plastic, which forms at least one receiving dome open towards the underside of the channel body, and a height adjustment device, wherein the adjustment unit of the height adjustment device, in particular a receiving structure of the support body, is received in the receiving dome and the channel body can be supported on the at least one bearing surface of the first adjustment element.

[0027] A receiving dome can be understood as a cavity open on one side. Receiving domes can be integrated, preferably molded, into the channel body in a predetermined grid, particularly on both sides of the channel. The channel body of a drainage channel, especially a facade channel, can either be used with a fixed installation height or made height-adjustable (section by section) by (locally) installing height adjustment devices. In particular, it is not necessary to include a height adjustment device in every receiving dome or in every pair of opposing receiving domes.

[0028] In an advantageous embodiment, the receiving dome has a through-opening for actuating the adjustment unit, in particular by rotating the first and / or second adjustment element. The through-opening allows access (from above) to the engagement profiles of the first and / or second adjustment elements, especially for actuating them with a screwdriver.

[0029] In an advantageous embodiment, the channel body has guide recesses on its underside for receiving corresponding guide columns of the support body of the height adjustment device. In particular, the channel body has openings for the insertion of corresponding locking lugs of the guide columns. Furthermore, these openings can serve to increase the adjustment range and / or to prevent collisions between the channel body and the height adjustment device.

[0030] In an advantageous further development, the channel body has spring receptacles on its underside for receiving the upper ends of the springs housed in the support body. This ensures that the springs are subjected to axial loads as much as possible during coarse adjustment.

[0031] In an advantageous embodiment, the channel body has several drainage slots, particularly those extending transversely across the channel body, which are separated from one another by breakable material webs of the channel body. These material webs feature, in particular, material thinners at their ends. These material thinners can be designed as tapers or local cross-sectional thinners and serve to create predetermined breaking points (cuttable material webs). By breaking out material webs, several drainage slots can be connected to form a (larger) opening, for example, to allow the connection of a (lateral) branch channel to the channel body.

[0032] Furthermore, the channel base may include knockout areas to allow connection to local drainage pipes. These knockout areas can also be created by material thinning or cutable material ribs. For example, an eccentric insertion spigot can be used to connect a pipe to the channel body.

[0033] In an advantageous embodiment, the channel body has end-face sliding / locking devices for connection with an adjacent channel body, in particular locking lugs oriented downwards or longitudinally to engage corresponding recesses in the adjacent channel body. Such sliding / locking devices serve to compensate for temperature- and material-related thermal expansion of the channels. This allows stresses between two channel bodies of a channel run to be absorbed or avoided. Particularly with a large number of channel bodies arranged in series (channel run), the temperature-related thermal expansions accumulate and can lead to warping in the channel run. This can result in the failure of the entire channel system. A sliding / locking device enables a defined zero position from which movements in both directions are possible.A channel body can be locked to an adjacent channel body from above and / or in the longitudinal direction.

[0034] Multiple receptacles for threaded nuts can be arranged on the underside of the channel body. These receptacles have an opening through which screws can be inserted. A grate can then be bolted to the channel body using these screws.

[0035] In an advantageous embodiment, a height-adjustable end wall is attached to one end face of the channel body. The end wall is preferably designed in two parts, with a first end wall part being fixed to the channel body and a second end wall part being height-adjustable and connectable to the first end wall part via elongated holes. The first end wall part is particularly connectable to the channel body via clamping elements or a clamping connection. A height-adjustable end wall can provide support to ensure the load-bearing capacity of the channel body at the channel end, especially when the channel is cut to length at any point. Preferably, a height-adjustable end wall can be attached to a channel end, particularly via (lateral) clamping elements. In the case of a (continuous) channel run, a height-adjustable end wall is preferably provided only at one or both ends of the channel run.The end wall can act as a support foot in any position, especially after shortening (cutting to length) the channel body.

[0036] In a further advantageous design, the channel body forms opposing channel flanges, each of which incorporates spring elements extending towards the interior of the channel body. These spring elements center the grate, ensuring, in particular, an approximately equal gap width on both sides of the channel. In this respect, the spring elements can act as grate centering devices.

[0037] In an advantageous embodiment, a channel frame has a locking recess designed for the engagement of a blocking section of a grate locking device inserted into a grate. Additional receiving devices for a grate locking device can be provided in the area of ​​the channel base, in particular receiving openings for threaded nuts through which a grate can be screwed to the channel body.

[0038] For connecting additional accessories, such as a drain element, a connection adapter, preferably made of sheet metal, can be fixed to the channel body. This connection adapter is attached to the channel body, in particular via a positive-locking connection.

[0039] The aforementioned problem is also solved in particular by a method for adjusting the height of a drainage channel, especially a drainage channel according to the invention, comprising the following steps: a) Placing a channel body onto a height adjustment device, in particular a height adjustment device, wherein the height adjustment device comprises a support body and at least one adjustment unit with a first adjustment element extending along an adjustment direction and axially displaceable within the support body, and a second adjustment element fixed relative to the support body in the adjustment direction; b) Coarse adjustment of the height of the channel body while a coupling element is in a decoupling position in which the first adjustment element and the second adjustment element are not coupled to each other; c) Moving the coupling element from the decoupling position to a coupling position in which the first adjustment element and the second adjustment element interact via the coupling element as a gear, in particular as a screw gear, in particular by rotating the first adjustment element or the second adjustment element;d) Fine adjustment of the height of the channel body while a coupling element is in the coupling position by actuating the adjustment unit, in particular by rotating the first adjustment element or the second adjustment element.

[0040] The method offers similar advantages to those already described in connection with the height adjustment device and the drainage channel. The method can implement some or all of the process engineering features described in connection with the height adjustment device and the drainage channel.

[0041] The object of the invention is to provide a grate locking device that, on the one hand, prevents the grate from being unintentionally lifted out of the channel body and, on the other hand, allows the grate to be easily lifted out when this is intended.

[0042] This problem is solved by a grate locking device according to claim 1.

[0043] In particular, the problem is solved by a grate locking device for a grate of a drainage channel comprising A housing for insertion into at least one mesh of the grate, the housing having a side recess; an actuating rocker pivotably mounted in the housing about a transverse axis of the housing, which has a pressure section on one side and a pull section on the other adjacent side for rotation by pushing and pulling, wherein, in the installed position, the pressure section forms a support lever on an underside for supporting the actuating rocker against a channel body and the pull section has a release section and a locking section on an underside; a locking rocker pivotably mounted in the housing about a vertical axis of the housing, which has a locking section and a release section, which, when the actuating rocker is pivoted, each engage with the locking section or the release section.The release section of the actuating rocker arm interacts in such a way that a blocking section of the locking rocker arm can be pivoted through the side recess to engage a locking recess in the channel body, or to unlock the grate from the locking recess.

[0044] The components of the grate locking device, in particular the housing, the operating rocker, and the locking rocker, can be made of plastic. The grate locking device is particularly suitable for installation in mesh grates made of stainless steel or galvanized steel.

[0045] A grate locking device according to the invention has the advantage that the grate, particularly by means of support via the support lever, lifts itself (automatically) from the channel body when unlocked. If grate locking devices according to the invention are provided (only) on one side of a drainage channel, the grate on that side automatically lifts up when unlocked and can be easily removed from the channel body. Furthermore, when lifting a grate that is jammed to the channel body by dirt or other means, there is a risk of also lifting the channel body, since the channel body is typically not fixed to the substrate. This can be prevented by automatically lifting the grate when unlocked by a grate locking device according to the invention.

[0046] In an advantageous embodiment of the invention, the unlocking section and the locking section each have chamfered contact surfaces oriented in opposite directions. In particular, the contact surfaces slide along the locking and unlocking sections of the actuating rocker during locking and unlocking.

[0047] In an advantageous embodiment of the invention, the housing has a receiving slot open towards the underside for a support bar of the grate. The supporting bar (grate rail) received in the receiving slot holds the grate locking device (in the vertical direction).

[0048] In an advantageous embodiment of the invention, the support lever forms a grate lifting surface designed to engage a support rod received in the receiving slot when the actuating rocker is pivoted to unlock the grate. In this way, the support rod is at least partially enclosed by the grate locking device. When the grate is lifted by pulling the pull section of the actuating rocker (in the fully unlocked state), the grate is thereby lifted as well.

[0049] In an advantageous embodiment of the invention, the upper surface of the pressure section and the tension section does not extend beyond the upper surface of the grate in a locking state, and in particular is flush with the upper surface of the grate.

[0050] In an advantageous embodiment of the invention, the support lever forms a curved, in particular convex, support surface for bracing against the channel body. This results in a continuous or uniform levering motion of the grate.

[0051] The unlocking and locking sections are designed, in particular, as projections or pins. The unlocking and locking sections of the actuating rocker are preferably arranged in one plane, and in particular, essentially perpendicular to each other. The actuating rocker is rotatably mounted on both sides in housing halves, preferably of identical design. The locking rocker is preferably clipped onto a vertically extending strut, which in particular defines or divides the side recess.

[0052] In an advantageous embodiment of a drainage channel according to the invention, a grate is inserted into a channel body, wherein at least one grate locking device according to the invention is inserted into at least one mesh of the grate on one side of the grate, and wherein, on the other opposite side of the grate, at least one locking hook of the grate engages in a locking recess of the channel body. By installing grate locking devices according to the invention on only one side, one-sided automatic lifting of the grate can be achieved.

[0053] The invention relates to a grate locking device (3) for a grate (4) of a drainage channel, comprising a housing (30) for insertion into at least one mesh of the grate (4), wherein the housing (30) has a side recess (301); an actuating rocker (31) pivotably mounted in the housing (30) about a transverse axis (Q), which has a pressure section (32) on one side and a pull section (33) on the other side, wherein the pressure section (32) forms a support lever (34) on an underside for supporting the actuating rocker (31) against a channel body (2) and the pull section (33) has a release section (33a) and a locking section (33b) on an underside; a locking rocker (35) pivotably mounted in the housing (30) about a vertical axis (H), which has a locking section (35b) and an unlocking section (35a), which, when the actuating rocker (31) is pivoted, each engages with the locking section (33b) orthe unlocking section (33a) of the actuating rocker (31) interact in such a way that a blocking section (36) of the locking rocker (35) can be pivoted through the side recess (301) to engage a locking recess (70) of the channel body (2) for locking the grate (4) to the channel body (2) or to unlock the grate (4) from the locking recess (70).

[0054] One aspect of the invention relates to a grate locking device (3), characterized in that the unlocking section (35a) and the locking section (35b) each have chamfered contact surfaces (37a, 37b) oriented in opposite directions to each other.

[0055] Another aspect of the invention relates to a grate locking device (3), characterized in that the housing (30) has a receiving slot (38) open towards the underside for a support rod (90) of the grate (4).

[0056] Another aspect of the invention relates to a grate locking device (3), characterized in that the support lever (34) forms a grate lifting surface (39a) which is designed to engage a support rod (90) received in the receiving slot (38) when the actuating rocker (31) is pivoted to unlock the grate (4).

[0057] Another aspect of the invention relates to a grate locking device (3), characterized in that an upper surface of the pressure section (32) and the tension section (33) does not extend beyond the upper surface of the grate (4) in a locking state, in particular it is flush with the upper surface of the grate (4).

[0058] Another aspect of the invention relates to a grate locking device (3), characterized in that the support lever (34) forms a curved, in particular convex, support surface (39b) for support against the channel body (2).

[0059] Another aspect of the invention relates to a drainage channel (100), characterized in that a grate (4) is inserted into the channel body (2), wherein at least one grate locking device (3) is inserted on one side of the grate and, in particular, at least one locking hook of the grate (4) engages in a locking recess (70) of the channel body (2) on the other side of the grate.

[0060] Exemplary embodiments of the invention are explained in more detail below with reference to the drawings. These show: Figure 8 shows a schematic representation of an embodiment of a drainage channel according to the invention with a grate and a grate locking device according to the invention; Figure 9 shows a schematic representation of an embodiment of a grate locking device according to the invention in the locked state in a perspective view; Figure 10 shows the embodiment according to Figure 9in the unlocked state; Figure 10B the embodiment according to Figure 9 in a rear view with the housing back panel hidden; Figure 11 the embodiment according to Figure 9 in a perspective bottom view with the rear of the housing hidden; Figure 12A the embodiment according to Figure 9 in the unlocked state in a detailed view; Figure 12B the embodiment according to Figure 9 Figure 13 shows a schematic representation of an embodiment of a drainage channel according to the invention with a grate raised on one side and a grate locking device according to the invention in the unlocked state; Figure 14A shows a schematic representation of a channel body of an embodiment of a drainage channel according to the invention in a bottom view; Figure 14B shows a channel body according to the invention. Figure 14A in a longitudinal section view.

[0061] In the following description of the invention, the same reference numerals are used for identical and identically acting elements.

[0062] In the Figs. 8 to 13 A grate locking device 3 made of plastic according to the invention is provided for a grate 4 of a drainage channel 100, the operation of which is described below. The grate locking device 3 is inserted from above into the grate between two meshes of a steel grate 4. The grate locking device 3 is positively locked to a support bar 90 and / or infill bar of the grate 4 by means of locking hooks. In the closed state, the grate locking device does not protrude upwards or downwards from the grate 4.

[0063] The grate locking device 3 consists of a housing 30 with two identical housing halves, the actuating rocker 31, and the locking rocker 35. The housing 30 has a lateral recess 301 through which, in the locked state, the blocking section 36 projects laterally and engages in a locking recess 70 in the channel frame 57. The shape of the actuating rocker 31 prevents the locking rocker 35 from rotating and the blocking section 36 from moving into the grate 4. Typically, two grate locking devices 3 are installed on one side per meter of grate 4. On the opposite side of the grate, fixed locking hooks or detent lugs project from the grate, which engage in corresponding locking recesses 70 of the channel body 2. In this way, the grate 4 is secured against unintentional lifting.

[0064] The actuating rocker 31 is pivotably mounted about a transverse axis Q in the housing 30 and has a pressure section 32 on one side and a pull section 33 on the other. The pressure section 32 has a support lever 34 on its underside to brace itself against the channel body 2 when the actuating rocker 31 is actuated to pry the grate 4 out of the channel body 2. The pull section 33 forms a release section 33a and a locking section 33b on its underside. The locking rocker 35 is pivotably mounted about the vertical axis H in the housing 30 and has a locking section 35b and a release section 35a. When the actuating rocker 31 is pivoted to lock, the locking section 33b of the actuating rocker 31 interacts with the locking section 35b of the locking rocker 35.When the actuating rocker 31 is pivoted to unlock, the unlocking section 33a of the actuating rocker 31 interacts with the unlocking section 35a of the locking rocker 35. In the locked state, the blocking section 36 of the locking rocker 35 engages through the side recess 301 and the side recess 91 of the grate 4 into a locking recess 70 of the channel body 2 and prevents the grate 4 from being lifted out of the channel body 2. The chamfered and oppositely oriented contact surfaces 37a and 37b of the locking rocker 35 slide against the unlocking section 33a and the locking section 33b of the actuating rocker 31, respectively, to generate opposite pivot directions of the locking rocker 35.

[0065] The housing 30 has a downwardly open receiving slot 38 for receiving a support bar 90 of the grate 4. The support lever 34 forms a grate lifting surface 39a, which pivots over the receiving slot 38 when the actuating rocker 31 is pivoted, thus engaging or enclosing the support bar 90 received in the receiving slot 38. In this way, when unlocked, the grate 4 can be lifted out of the channel body 2 via the grate locking device 3.

[0066] When the actuating rocker 31 is rotated by pressing on the pressure section 32 and then pulling on the pull section 33, which is only possible in one direction, the locking rocker 35 rotates so that the blocking section 36 moves into the grate 4. As shown in the Fig. 12AWhen switched off, the blocking locking section 33b is moved away and the unlocking section 33a of the actuating rocker 31 presses against the inclined contact surface 37a of the unlocking section 35a of the locking rocker 35, which leads to the in Fig. 12A The depicted pivoting movement results in the blocking section 36 being moved out of the locking recess 70, thus leaving the grate 4 unsecured against lifting.

[0067] When the actuating rocker 31 is rotated further by pulling on the pull section 33, the support lever 34 with the curved support surface 39b presses against the grate support surface 75 of the channel body 2 and lifts the grate 4 out of the channel on one side, as shown in Fig. 13 The open or unlocked position of the grate locking device 3 is shown in the Fig. 10A and 10BAs illustrated, one advantage of the one-sided lifting of the grate 4 is that the grate 4 can also be removed at installation locations where, for example, the facade partially overhangs the inside of the gutter. The grate 4 can be lifted out of the gutter body 2 by pulling on the actuating rocker 31, more precisely on the pull section 33. In doing so, the grate lifting surface 39a of a rib of the actuating rocker 31 engages under the support bar 90, thus preventing the grate locking device 3 from being released from the grate 4 by the force exerted during the lifting process.

[0068] When the grate 4 with the grate locking device 3 is inserted into the channel body 2 and the actuating rocker 31 is rotated in the opposite direction to the previously described rotational movement, the grate automatically lowers onto the grate support surface 75 of the channel body 2. At the end of the rotational movement, the actuating rocker 31 presses against an inclined contact surface 37b of the locking rocker 35, causing the locking rocker 35 to move back into the locking position. At the end of the rotational movement, the blocking section 36 engages in the locking recess 70 of the channel frame 57 and secures the grate 4 against being lifted out.

[0069] The rotational movements and contact points (see circles) during unlocking ( Fig. 12A ) and when locking ( Fig. 12B ) are represented graphically.

[0070] In the Figs. 14A and 14BThe underside of the channel body 2 is shown. Spring receptacles 78 for receiving the upper ends of the springs 14, which are housed in the support body 10, and receiving openings 77 for threaded nuts are shown. Screws can be inserted into the receiving opening 77 to bolt the grate 4 to the channel body 2. Sliding / locking devices 76 are provided at the ends of the channel body 2 for connecting adjacent channel bodies 2 to form a channel run and for compensating for temperature-related changes in length. Reference symbol list:

[0071] 2 Channel body 3 Grate locking device 4 Grate 30 Housing 31 Actuating rocker 32 Pressure section 33 Pull section 33a Release section 33b Locking section 34 Support lever 35 Locking rocker 35a Release section 35b Locking section 36 Blocking section 37a Contact surface 37b Contact surface 38 Receptacle slot 39a Grate lifting surface 39b Support surface 53 Receptacle dome 55 Guide receptacle 58 Channel bottom 59 Spring element 70 Locking recess 75 Grate support surface 76 Sliding / locking device 77 Receptacle opening 78 Spring receptacle 80 Adjustment unit 90 Support bar 91 Side recess 100 Drainage channel 301 Side recess V Adjustment direction Q Transverse axis H Vertical axis

Claims

1. Grill locking device (3) suitable to be inserted into grills (4) for drainage channels having a channel body (2), wherein the channel body (2) has a locking recess (70), wherein the grill locking device (3) comprises the following - a housing (30) suitable to be inserted into at least one mesh of the grill (4), wherein the housing (30) has a lateral recess (301), - an actuating rocker (31) mounted in the housing (30) to be pivotable around a transverse axis (Q) of the housing (30), which rocker has a pressure section (32) on one side and a traction section (33) on the other side, wherein the actuating rocker (31) is pivoted by pressing on the pressure section (32) and subsequently pulling on the traction section (33), wherein the pressure section (32) forms a support lever (34) on a lower side, which is capable in the installed position of supporting the actuating rocker (31) against a channel body (2) and the traction section (33) has an unlocking section (33a) and a locking section (33b) on a lower side, - a locking rocker (35) mounted in the housing (30) to be pivotable around a vertical axis (H) of the housing (30), which rocker has a locking section (35b) and an unlocking section (35a), which, upon pivoting of the actuating rocker (31), each interact with the locking section (33b) or the unlocking section (33a), respectively, of the actuating rocker (31) such that a blocking section (36) of the locking rocker (35) protrudes laterally out of the housing (30) through the lateral recess (301), wherein in an installed position of the grill locking device (3) in a grill (4) of a drainage channel, the blocking section (36) can be engaged with the locking recess (70) of the channel body (2), by which the grill (4) is locked with the channel body (2).

2. Grill locking device (3) as claimed in claim 1, characterized in that the unlocking section (35a) and the locking section (35b) each have beveled contact surfaces (37a, 37b) aligned opposite to one another.

3. Grill locking device (3) as claimed in claim 1 or 2, characterized in that the housing (30) has a receptacle slot (38), which is open toward the lower side, for a supporting rod (90) of the grill (4).

4. Grill locking device (3) as claimed in claim 3, characterized in that the support lever (34) forms a grill lifting surface (39a), which is designed, upon pivoting of the actuating rocker (31) to unlock the grill (4), to engage below a supporting rod (90) accommodated in the receptacle slot (38).

5. Grill locking device (3) as claimed in any one of claims 1 to 4, characterized in that the support lever (34) forms a curved, in particular convex, support surface (39b) for support against the channel body (2).

6. Drainage channel (100), characterized in that a grill (4) is laid in a channel body (2), wherein on one grill side, at least one grill locking device (3) as claimed in any one of claims 1 to 5 is inserted into at least one mesh of the grill (4), wherein on the opposite grill side, in particular at least one locking hook of the grill (4) engages in a locking recess (70) of the channel body (2).

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