DE20011410U1 - Hinged lid arrangement for electrical installation devices - Google Patents

Description

GIRA Giersiepen GmbH & Co. KG, Dahlienstr. 12, D-42477 Radevormwald Hinged lid arrangement for electrical installation devices

The invention relates to a hinged lid arrangement for electrical installation devices, in particular sockets, consisting of a carrier element and a hinged lid pivotably connected to the carrier element via a pivot bearing, the bearing axis of which is arranged parallel to a device-side mounting plane of the carrier element, with at least one spring which causes a closed position of the hinged lid and whose direction of action runs in particular perpendicular to the mounting plane, and with a bearing part by means of which the bearing axis of the pivot bearing can be displaced perpendicular to the mounting plane.

A similar hinged lid arrangement, but without a movable bearing axis, is known from DE-A-25 16 596, which describes a socket with a hinged lid. A closing spring in the form of a compression spring is provided, which is arranged in a sleeve perpendicular to the closing plane of the hinged lid. The compression spring acts via a locking member against a control curve of a cam of the hinged lid. This arrangement is designed in such a way that the hinged lid can be folded back into an open position by far more than 90°, up to almost 180°, without the lid then springing back into the closed position by itself. Only when pushed by hand does the locking member automatically push the lid back into the closed position by pressure from the spring. This known arrangement leads to a relatively large overall height due to the position of the compression spring. The hinged lid necessarily protrudes from the support element.

DE-A-30 10 023 describes a water-protected socket of the type mentioned above that can be closed by a hinged cover. The cover is connected to the housing via a bearing part, with which it is flush in the closed position. The bearing part is housed in a housing recess in a way that is essentially axially displaceable and has a bearing plate on its rear end facing away from the cover.

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two guide pins running essentially in the axial direction (plug insertion direction), which are guided axially displaceably in openings in a wall and each protrude into a spring recess. Each of the guide pins arranged perpendicular to the opening plane of the socket is designed as a threaded screw and has a helical compression spring between its screw head and the respective opening. As a result, when the hinged lid is opened, which is possible up to a pivot angle of just over 90° compared to the closed position, the guide pins are pulled over the pivot axis of the lid against the spring force of the helical compression springs. To automatically close the lid under spring force, the helical compression springs press against the screw heads of the guide pins, so that the latter pull the bearing of the hinged lid into the housing, which then closes the lid. A strong closing torque is still effective even when the lid is pivoted at an angle of over 90°. This well-known design is quite complicated and expensive to manufacture due to the numerous individual parts. Here too, the guide pins and compression springs result in a relatively large overall height of the entire device.

The present invention is based on the object of improving a hinged lid arrangement of the type mentioned in such a way that, on the one hand, it can be manufactured with less effort, is easier to assemble and allows a lower overall height, but on the other hand - as is known - allows a pivoting angle of the hinged lid of more than 90°, in particular of up to 180°, and ensures that the lid, in the closed state, is flush with the support element or with the panel of an electrical device in which it is installed.

According to the invention, this is achieved in that the bearing part is designed as a pivoting bracket, the two free ends of which define the bearing axis and the middle part of which is displaceable perpendicular to the mounting plane and is acted upon by the spring.

According to the invention, large opening angles of the hinged lid are thus possible, with the lid being almost flush with the support element or a panel of an electrical device into which the hinged lid arrangement can be installed. The bearing axis is movable in such a way that in the closed position of the lid, with respect to the assembly plane, it is below the level of the cover surface of the support element.

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element or panel and is raised above this level when opened. The design of the bearing part as a pivoting bracket advantageously allows for a lower overall height, improved ease of assembly and - through the use of fewer and simpler assembly parts - less construction effort than the known generic arrangement. The arrangement according to the invention not only enables the bearing axis of the hinged lid to move vertically, but also parallel to the assembly plane, which has further advantages that are explained in more detail below.

In a preferred, particularly assembly-friendly design, the free ends of the bracket, which is particularly spring-elastic, can form axle pins, each of which engages in a bearing opening of a hinge bearing part of the hinged lid. For assembly, the free ends can thus be bent up slightly and inserted into the respective bearing opening of the hinge bearing part, whereby a force-fitting and form-fitting connection between the bracket and the hinged lid is formed when the bracket ends spring back.

The hinge bearing part can preferably have a cam-like shape with a guide contour for contact with a guide surface of the support element. This alone or this in conjunction with a corresponding movement path of the pivot axis of the hinged lid or the latter alone allows the arrangement according to the invention to be designed in such a way that the hinged lid assumes a stable opening position at a defined angular position to its closed position, in particular at around 90°, and in addition, at an opening angle greater than this, the closing force of the spring, which causes the hinged lid to close automatically at a smaller angle, is transformed into an opening force that causes the hinged lid to open as far as possible.

Further advantageous features of the invention are contained in the subclaims and the following description.

The invention will be explained in more detail below with reference to two preferred embodiments shown in the drawing.

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Fig. 1 is a perspective exploded view of a first embodiment of a hinged lid arrangement according to the invention,

Fig. 2 is a perspective view of the hinged lid arrangement according to the invention shown in Fig. 1, but in the assembled state, with the hinged lid closed and in a view from below,

Fig. 3 is a perspective sectional view of a second hinged lid arrangement according to the invention in the assembled state, with the hinged lid closed and in a view from above,

Fig. 4 is a perspective view of the embodiment of the hinged lid arrangement according to the invention shown in Fig. 3, in the assembled state, with the lid fully opened and in a view from above,

Fig. 5a to 5f

various views of the bearing area of the hinged lid of the hinged lid arrangement according to the invention shown in Fig. 3 and 4, each in a side view and in a side section, to illustrate the kinematics of the opening movement of the hinged lid.

In the various figures of the drawing, the same parts are always provided with the same reference symbols, so that they are usually only described once.

As can be seen from Fig. 1 and 2, which show a first embodiment of a hinged lid arrangement according to the invention for electrical installation devices, in particular sockets, such an arrangement consists of a carrier element 1 and a hinged lid 2, which is pivotably connected to the carrier element 1 via a pivot bearing L, the bearing axis A-A of which is arranged parallel to a device-side mounting plane E of the carrier element 1, as basic components.

The arrangement also comprises at least one spring 3, in the examples shown two springs 3 of the same design, which are arranged at a distance and parallel to each other with respect to their direction of force F, which

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closed position of the hinged lid and whose direction of action(s) F is/are perpendicular to the mounting plane E.

Furthermore, the arrangement according to the invention comprises a bearing part, by means of which the bearing axis A-A of the pivot bearing L can be displaced perpendicular to the mounting plane E and which is designed according to the invention as a pivotable (cranked) bracket 4, the two free ends 4a, 4b of which, as shown in Fig. 2, define the bearing axis A-A (in the assembled state) and the middle piece 4c of which can be displaced perpendicular to the mounting plane E is acted upon by the spring(s) 3.

In a preferred embodiment, the pivot bearing L can - as shown - consist of two spaced-apart axle journals pointing in opposite directions according to the direction of the pivot axis A-A and two bearing openings 5 of two hinge bearing parts 6 that accommodate the axle journals. The axle journals can be formed by the free ends 4a, 4b of the, in particular spring-elastic, bracket 4, which each engage in the bearing openings 5 of the preferably integrally formed hinge bearing part 6 of the hinged lid 2. The hinge bearing part 6 itself can be arranged in a manner that is advantageous in terms of assembly technology on a side surface 7 of the hinged lid 2, which runs approximately perpendicular to a cover surface 8 of the hinged lid 2 that lies approximately parallel to the assembly plane E when the hinged lid 2 is closed.

The carrier element 1 is preferably designed as a flat plate or frame element and is preferably designed to be completely free of openings at least in a peripheral edge region 9 - viewed in a direction perpendicular to the mounting plane E.

The first embodiment of the hinged lid arrangement according to the invention is particularly suitable for installation in an electrical device, such as an electrical damp-proof device, whereby the hinged lid 2 can also cover electrical connections designed as plug pins. The arrangement can be installed in the electrical device in such a way that the cover surface 8 of the hinged lid 2 runs in the same plane as a panel or the like of the electrical device when the hinged lid 2 is closed. In this way, with optically

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attractive exterior ensures effective sealing of the device connections.

The cover surface 8 of the hinged lid 2 expediently has a handle projection 10 for operation, which protrudes beyond the (remaining) cover surface 8 of the hinged lid 2 and the panel when the hinged lid 2 is closed.

The springs 3 of the arrangement according to the invention, both in the first and in the second embodiment described below, are designed as compression springs, in particular as helical springs, and are arranged at least at one end in an open-edged receptacle 11 of the carrier element 1, with their other end resting on the middle piece 4c of the bracket 4.

The second embodiment of a hinged lid arrangement according to the invention (Fig. 3 to 5f) differs from the first arrangement in that the carrier part 1 is made up of several pieces, i.e. of at least two elements, such as a base element 1a shown in the drawing, which forms a support for the hinged lid 2 and corresponds in its entirety to the carrier part 1 of the first embodiment, and a cover element 1b which surrounds the hinged lid 2 like a frame. A further element, designated with the reference symbol 1c, could be referred to as an intermediate or connecting element. The individual elements 1a, 1b, 1c of the carrier part 1 can be detachably connected to one another in an assembly-technically advantageous manner, in particular can be locked together.

As in the first embodiment, the middle piece 4c of the bracket 4 is guided so as to be displaceable perpendicular to the mounting plane E in the support element 1, namely in the open-edged receptacle 11 of its base element 1a, in each case under the action of the spring 3.

As Fig. 3 shows, in the second embodiment of the invention, the cover surface 8 of the hinged lid 2, when the hinged lid 2 is closed, runs in a plane with a cover surface of the carrier part 1, in particular with the cover surface 12 of the cover element 1b of the carrier part 1.

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Fig. 4 illustrates that the hinged lid 2 of the arrangement according to the invention can be pivoted in its open position by an angle of up to approximately 180° with respect to the closed position (Fig. 3), which is also ensured by the first embodiment of the invention. The springs 3 are maximally compressed in this position, and the bearing axis A-A is raised above the closed position of the hinged lid 2 (Fig. 3), where it is below the level of the cover surface 12 of the support element 1 with respect to the assembly plane E. The springs 3, which become effective at an opening angle of less than 90° in the sense of bringing about the closed position of the hinged lid 2, act in this position to stabilize the open position, which will be specified below in the description of the kinematics of the opening movement of the hinged lid 2.

The kinematics of the opening movement (and conversely the closing movement) of the hinged lid 2 is illustrated by Fig. 5a to 5f, with particular reference to the area of the pivot bearing L. Fig. 5a shows the closed position of the hinged lid 2, Fig. 5f shows a position shortly before reaching the maximum opening position of the hinged lid 2 shown in Fig. 4, and Fig. 5b to 5e show various intermediate positions.

The opening angle of the hinged lid 2 relative to the carrier element 1, which is not specified in more detail, is 0° in its closed position. With regard to the closed position, it should be emphasized (which can only be seen in Fig. 5a) that in this position there is a gap S between the hinged lid 2 and the carrier part 1, in particular between the hinged lid 2 and the cover element 1b of the carrier part 1 that surrounds it. Due to this gap S, when the hinged lid 2 is opened manually, the hinged lid 2 initially rotates/pivots freely (in the sense of the arrow marked R1, R - for rotation about the axis A-A), the latter being defined by the position of the ends 4a, 4b of the bracket 4. The bracket 4 itself does not move in the process.

From Fig. 5b, which shows an open position of the hinged lid 2 in which the free rotation/pivoting about the pivot axis A-A has already ended, the following can be seen in a particularly striking manner: 1. The hinge bearing part 6 has a cam-like outer shape with a guide contour K for contact with a

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Guide surface A1 of the carrier element 1. 2. This guide surface A1 runs parallel to the mounting plane E and is formed in the edge region 9 of the carrier part 1, in particular on a lateral (not further designated) inner edge of the base element 1a of the carrier part 1. 3. An upper edge H of the carrier element 1 forms a contact edge for the cover surface 8 of the hinged lid 2. (This edge H takes on the function of a - effectively effective - pivot axis during the further opening movement of the hinged lid 2, at least temporarily.) 4. The guide contour K has a nose N, the incipient sliding on the guide surface A1 of which has the effect of increasing the mechanical tension in the spring 3 or raising the middle piece 4c of the bracket 4 relative to the mounting plane E. After passing over this nose N during further opening of the hinged lid 2 (in the direction of arrow R2), as a result of the hinged lid 2 being pushed away from the edge H with the superimposition of a lowering of the middle piece 4c of the bracket 4 (arrow U1), an oblique downward movement of the axis A-A in the direction of arrow T1 in Fig. 5b (directed towards the assembly plane) occurs.

In a further movement phase of the hinged lid 2 (Fig. 5c), this again results in a relaxation/expansion of the (compression) spring 3. The hinged lid 2 can be in an opening angle position of approximately 90° to 120° - in the embodiment shown, it is in an angle position of just over 100°. The cover surface 8 rests against the edge H of the support element 1. The guide contour K of the hinge bearing part 6, which can be designed to be self-locking, particularly with regard to its interaction with the guide surface A1, and/or the movement path of the pivot axis A-A are designed in such a way that the hinged lid 2 assumes a stable opening position in this defined angular position to its closed position, i.e. the spring 3 (not shown in this figure) has neither a closing nor an opening effect on the hinged lid 2. When the hinged lid 2 is opened further manually (in the direction of the arrow R3), this stable position is lost. The guide contour K of the hinge bearing part 6 (and/or the path of movement of the pivot axis A-A) causes the initial closing force of the spring 3 on the hinged lid 2 (against the force of manual action, at opening angles of less than 90°) to be transformed into an opening force which strives to bring about a maximum opening of the hinged lid 2 (without manual action). In addition, the pivot axis A-A moves when opening further

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of the hinged lid 2 (in the direction of arrow R3) in the direction of arrow T2, whereby the middle part 4c of the bracket 4 is raised (arrow U2).

In these phases of movement of the hinged lid 2, when sliding on the guide surface A1, a position is almost reached in which the contour K has reached its "end", i.e. at an edge I with the cover surface 8 of the hinged lid 2. From this position, the entire hinged lid 2 can move upwards - away from the mounting plane E - when pivoting further about the axis A-A (arrow R4), including the bracket 4, as is illustrated by the directional arrows T3 (movement of the pivot axis A-A) and U3 (movement of the middle piece 4c of the bracket 4), whereby the intermediate position shown in Fig. 5e is reached.

In the intermediate position according to Fig. 5e, the pivot axis A-A is abruptly raised above the plane of the cover surface 12 of the carrier element 1 with respect to the assembly plane E, whereby the contact of the cover surface 8 with the edge H is eliminated. Fig. 5e (as well as 5f) illustrates that a support web 13 can advantageously be formed on the inside of the carrier element 1, in particular centrally between the axle journals, on which the hinged lid 2, in particular with its guide contour K, "jumps up" to a certain extent when it assumes a certain opening position, so that the bearing axis A-A of the pivot bearing L of the hinged lid 2, which is displaced vertically upwards relative to the assembly plane E, rests on the support web 13. The support web 13 can form a further guide surface A2 (aligned parallel to the assembly plane E) on the top side for the guide contour K of the hinged lid 2, in particular its hinge bearing part 6. From the position in Fig. 5e, no further "upward movement" of the middle part 4c of the bracket 4 is possible. However, a further pivoting of the hinged lid 2 about the axis A-A (arrow R5) is possible, which is carried out with further opening until - as Fig. 5f shows - the cover surface 8 of the hinged lid again comes to rest on the edge H.

Then (starting from the position shown in Fig. 5f) - when the hinged lid is opened further (further pivoting according to arrow R6) to the position shown in Fig. 4 - in analogy to the hinged lid position described in the description of Fig. 5c - the edge H again effectively becomes a pivot axis, whereby

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the bracket 4 can also be pivoted accordingly and the axis A-A can be moved laterally. This makes it possible to overpress beyond the intended opening angle without damaging the arrangement.

To close the hinged lid 2, it is manually pushed from its open position towards the closed position.

The invention is not limited to the embodiments shown, but also includes all embodiments that have the same effect within the meaning of the invention. For example, it is also possible for the axle pins to be components of the support element 2 and for the respective hinge bearing part 6 with its bearing opening 5 to be formed at the free ends of the bracket 4.

In addition, the person skilled in the art can provide further expedient measures for the technical design of a hinged lid arrangement according to the invention without departing from the scope of the invention. Furthermore, the invention is not limited to the combination of features defined in claim 1, but can also be defined by any other combination of specific features of all the individual features disclosed overall. This means that in principle practically every individual feature of claim 1 can be omitted or replaced by at least one individual feature disclosed elsewhere in the application. In this respect, claim 1 is to be understood as merely a first attempt at formulating an invention.

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Reference symbols Support element 1 Base element of 1 1a Cover element of 1 1b Intermediate element of 1 1c Hinged lid 2 Feather 3 hanger 4 first end of 4 4a second end of 4 4b Centerpiece of 4 4c Warehouse opening in 6 5 Hinge bearing part 6 Side surface of 2 7 Cover area of 2 8th Margin area of 1 9 Handle projection in 8 10 Recording in 1 for 3 11 Cover area of 1b 12 Support bar on 1 for 2 13 first guide surface of 1 for K (at 9) A1 second guide surface from 1 for K (to 13) A2 Bearing axis of L A-A Mounting level E Direction of force F (Attachment) edge at 1 (for 8) H Edge from K to 8 I Guide contour of 6 K Swivel bearing L Nose in K N Swivel direction of 2 R1 Swivel direction of 2 R2

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R3 Swivel direction of 2

R4 Swivel direction of 2

R5 Swivel direction of 2

R6 Swivel direction of 2

S gap between 1 b and 2

T1 Translational movement from A-A

T2 Translational movement from A-A

T3 Translational movement from A-A

U1 Translational movement of 4c

U2 Translational movement of 4c

U3 Translational movement of 4c

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Claims (20)

1. Hinged lid arrangement for electrical installation devices, in particular sockets, consisting of a carrier element ( 1 ) and a hinged lid ( 2 ) pivotably connected to the carrier element ( 1 ) via a pivot bearing (L), the bearing axis (AA) of which is arranged parallel to a device-side mounting plane (E) of the carrier element ( 1 ), with at least one spring ( 3 ) which causes a closed position of the hinged lid ( 2 ) and whose direction of action (F) runs in particular perpendicular to the mounting plane (E), and with a bearing part by means of which the bearing axis (AA) of the pivot bearing (L) can be displaced perpendicular to the mounting plane (E), characterized in that the bearing part is designed as a pivotably movable bracket ( 4 ), the two free ends ( 4a , 4b ) of which define the bearing axis (AA) and the middle piece ( 4c ) of which can be displaced perpendicular to the mounting plane (E) is supported by the spring ( 3 ). is loaded. 2. Hinged lid arrangement according to claim 1, characterized in that the pivot bearing (L) consists of two spaced-apart axle journals pointing in opposite directions according to the direction of the pivot axis (AA) and two bearing openings ( 5 ) of two hinge bearing parts ( 6 ) receiving the axle journals. 3. Hinged lid arrangement according to claim 2, characterized in that the free ends ( 4 a, 4 b) of the, in particular spring-elastic, bracket ( 4 ) form the axle pins which each engage in the bearing opening ( 5 ) of the preferably integrally formed hinge bearing part ( 6 ) of the hinged lid ( 2 ). 4. Hinged lid arrangement according to claim 2 or 3, characterized in that the hinge bearing part ( 6 ) is arranged on a side surface ( 7 ) of the hinged lid ( 2 ) which runs approximately perpendicular to a cover surface ( 8 ) of the hinged lid ( 2 ) which, in the closed state of the hinged lid ( 2 ), lies approximately parallel to the mounting plane (E). 5. Hinged lid arrangement according to one of claims 2 to 4, characterized in that the hinge bearing part ( 6 ) has a cam-like outer shape with a guide contour (K) for contact with at least one guide surface (A1, A2) of the carrier element ( 1 ). 6. Hinged lid arrangement according to one of claims 1 to 5, characterized in that the carrier element ( 1 ) is designed as a flat plate or frame element and is preferably designed to be completely free of openings at least in a peripheral edge region ( 9 ) - viewed in a direction perpendicular to the mounting plane (E). 7. Hinged lid arrangement according to one of claims 1 to 6, characterized in that the carrier part ( 1 ) is made up of several pieces, from at least two elements ( 1a , 1b , 1c ), such as a base element ( 1a ) forming a support for the hinged lid ( 2 ) and a cover element ( 1b ) enclosing the hinged lid ( 2 ) in the manner of a frame. 8. Hinged lid arrangement according to claim 7, characterized in that the elements ( 1 a, 1 b, 1 c) of the carrier part ( 1 ) can be detachably connected to one another, in particular can be locked together. 9. Hinged lid arrangement according to one of claims 1 to 8, characterized in that a/the cover surface ( 8 ) of the hinged lid ( 2 ) when the hinged lid ( 2 ) is closed runs in a plane with a cover surface of the carrier part ( 1 ), in particular with a cover surface ( 12 ) of the cover element ( 1b ) of the carrier part ( 1 ), or with a panel of an electrical device. 10. Hinged lid arrangement according to one of claims 1 to 9, characterized in that a/the cover surface ( 8 ) of the hinged lid ( 2 ) has a handle projection ( 10 ) which, when the hinged lid ( 2 ) is closed, projects beyond a/the cover surface of the support part or the plane of a/the panel of an electrical device. 11. Hinged lid arrangement according to one of claims 5 to 10, characterized in that the guide surface (A1, A2) runs parallel to the mounting plane (E) and is formed in a/the edge region ( 9 ) of the carrier part ( 1 ), in particular on a lateral inner edge of the base element ( 1b ) of the carrier part ( 2 ), or on a support web ( 13 ) arranged on the carrier part ( 2 ). 12. Hinged lid arrangement according to one of claims 1 to 11, characterized in that the middle piece ( 4 c) of the bracket ( 4 ) is guided displaceably perpendicular to the mounting plane (E) in the carrier element ( 1 ), in particular in the base element ( 1 a) of the carrier element ( 1 ). 13. Hinged lid arrangement according to one of claims 5 to 12, characterized in that the guide contour (K) of the hinge bearing part ( 6 ) and/or a path (T1, T2, T3) of the movement of the pivot axis (AA) is designed such that the hinged lid ( 2 ) assumes a stable opening position in a defined angular position to its closed position, in particular at an opening angle of approximately 120°. 14. Hinged lid arrangement according to one of claims 5 to 13, characterized in that the guide contour (K) of the hinge bearing part ( 6 ), in particular also by a self-locking on guide surfaces (A1, A2) and/or a path (T1, T2, T3) of the movement of the pivot axis (AA) are/is designed in such a way that in a defined angular position of the hinged lid ( 2 ) to its closed position, in particular at an opening angle of more than approximately 90°, the closing force of the spring ( 3 ), which causes automatic closing of the hinged lid ( 2 ) at a smaller angle, is transformed into an opening force which brings about maximum opening of the hinged lid ( 2 ). 15. Hinged lid arrangement according to one of claims 1 to 14, characterized in that the spring ( 3 ) is designed as a compression spring, in particular as a helical spring. 16. Hinged lid arrangement according to one of claims 1 to 15, characterized in that two similarly designed springs ( 3 ) are provided at a distance from one another and parallel to one another with respect to their direction of force action (F). 17. Hinged lid arrangement according to one of claims 1 to 16, characterized in that the or each closing spring ( 3 ) is arranged at least at one end in an open-edged receptacle ( 11 ) of the carrier element ( 1 ) and at the other end rests on the middle piece ( 4c ) of the bracket ( 4 ). 18. Hinged lid arrangement according to one of claims 1 to 17, characterized in that an upper edge (H) of the carrier element ( 1 ) forms a contact edge for the/a cover surface ( 8 ) of the hinged lid ( 2 ), which takes on the function of a pivot axis in defined opening positions of the hinged lid ( 2 ). 19. Hinged lid arrangement according to one of claims 1 to 17, characterized in that on the inside of the carrier element ( 1 ), in particular centrally between the axle journals, a support web ( 13 ) is formed, on which the hinged lid ( 2 ), in particular with its guide contour (K), rests in a position of the hinged lid ( 2 ) in which the bearing axis (AA) of its pivot bearing (L) is displaced vertically upwards over a/the cover surface ( 12 ) of the carrier element ( 1 ) relative to the mounting plane (E). 20. Hinged lid arrangement according to one of claims 2 to 19, characterized in that the axle pins are components of the carrier element ( 1 ) and the respective hinge bearing part ( 6 ) with its bearing opening ( 5 ) is formed at the free ends of the bracket ( 4 ).