RU2813475C1 - Connecting fittings, piece of furniture, device for connecting parts of furniture and method for assembling piece of furniture - Google Patents

Abstract

FIELD: furniture.

SUBSTANCE: invention relates to connecting fittings (3) for a piece of furniture (5), in particular a piece of upholstered furniture, having first part (10) configured to be attached to part (1) of furniture, and second part (20) configured to be attached to second part (2) of furniture, wherein first part (10) has receiving element (11) for support edge (21) of second part (20), and second part (20) is made with possibility of rotation relative to first part (10) around support edge (21) in first angular range. On first part (10) there is guide surface (15), which contacts with second part (20) by means of sliding surface (26) during rotation in the second angular range and further displaces second part (20) in translation relative to first part (10), wherein first part (10) has locking element at the end of guide surface (15) whereon second part (20) can be locked against rotation.

EFFECT: creation of connecting fittings, which due to simple design provides reliable fastening of furniture parts to each other.

20 cl, 13 dwg

Description

The present invention relates to a connection fitting for a piece of furniture, in particular a piece of upholstered furniture, having a first piece configured to be attached to a first piece of furniture, and a second piece configured to be attached to a second piece of furniture, the first piece having a receiving element for a support edges of the second piece, and the second piece is rotatable relative to the first piece about the supporting edge within the first angular range, to the piece of furniture, to the device for connecting pieces of furniture, and to the method of assembling the piece of furniture.

DE 20 2017 107 179 U1 describes a piece of furniture in which two pieces of furniture are attached to each other by means of two different connections. In the first connection, two parts of the furniture can be installed with the possibility of rotation relative to each other, and in the second connection there is a mechanical closure. Fastening two pieces of furniture requires numerous components that must be positioned precisely to ensure a secure connection between the two pieces of furniture. Assembly can only be carried out by a specialist.

DE 10 2016 100 753 A1 describes furniture fittings for connecting parts of furniture, in which two shafts are provided that can be moved relative to each other. The shafts are pre-tensioned against each other using a spring so that the two connecting parts can be fastened together. This makes assembly easier, but it requires a lot of components to make the two parts that connect.

Thus, the technical problem to be solved by the present invention is the creation of connecting fittings, which, due to their simple design, ensure reliable fastening of furniture parts to each other. In addition, it is necessary to provide an easy-to-assemble device for connecting furniture parts and a method for assembling a piece of furniture, which can also be performed by persons with little experience.

This problem is solved using connecting fittings having the features of claim 1, a device having the features of claim 13, and a method for assembling a piece of furniture having the features of claim 1. 15 or 17.

The connection fitting according to the invention consists of two parts which can be fastened together with a simple movement to secure two pieces of furniture together. The first part is provided with a receiving element for the supporting edge of the second part, so that the second part can be rotated relative to the first part about the supporting edge in a first angular range. In this first angular range, the first part and the second part contact each other only through the support edge and the receiving element. The first piece further includes a guide surface with which a sliding surface on the second piece can contact. Once the sliding surface on the second piece contacts the guide surface, the first piece can rotate relative to the second piece through a second angular range that is adjacent to the first angular range. During this rotation in the second angular range, the sliding surface on the second part moves along the guide surface, so that in addition to the purely rotational movement, the guide surface causes translational motion. At the end of the guide surface, the first part contains a locking element with which the second part can be locked from rotation. This allows the second piece to be locked by a simple rotational movement relative to the first piece, while the two pieces are protected from rotational movement in the locked position.

The locking element can be made in the form of a recess into which the protrusion of the second part can be inserted. Thus, the locking can be carried out in a simple manner, wherein the second piece is preferably slid in a first direction while rotating on the guide surface and moved in a second direction opposite to the first locking direction to be locked onto the first piece. As a result, release of the connection between the first and second parts can only be achieved by sliding the second part relative to the first part and then rotating it. Without this sliding movement, both parts are securely locked from turning.

The first part is preferably provided with a bent wall on which a guide surface is formed. The guide surface preferably extends at an angle in a circumferential direction along which the sliding surface moves during rotation to displace the second part relative to the first part.

To securely attach the second part to the first part, a curved U-shaped or L-shaped receiving element may be provided on the first part. During assembly, the support edge can then be inserted into this inclined or curved receiving element and then rotated through a certain angular range.

In yet another design, the second piece has an opening into which a folded wall having a guide surface of the first piece can be inserted. In this way, the second part can be protected from displacement parallel to the longitudinal direction of the rotation axis of the turning movement. Preferably, the hole has a protrusion configured to be inserted into a recess on the first part. Thus, by engaging the protrusion, the first part can be locked by the second part against the rotational movement.

To improve directionality of the turning motion, a support edge on the second piece may be positioned between two centering protrusions, with the centering protrusions engaging the receiving member on the first piece during rotation. This prevents the second part from moving in the direction of the rotation axis by means of the centering projections.

For simple attachment to a piece of furniture, the first piece may comprise a flat base surface to which the first piece of furniture is secured using fasteners, in particular one or more screws. The second piece may also have a flat base surface to which the second piece of furniture is attached using fasteners such as screws.

Preferably, the first piece and/or the second piece are made of bent metal sheet so that the connecting fittings can be easily manufactured. The connecting hardware preferably comprises only two pieces made from bent metal sheet, each of which is then secured to a piece of furniture using fasteners.

According to the invention, connecting hardware is used in furniture, for example in seating furniture such as sofas or armchairs, for attaching armrests, headboards or other parts of furniture to a base part, and for connecting two or more main parts of furniture, each main part she stands on the floor. The furniture pieces can preferably be joined together by two separate connecting fittings and one turning movement.

A device according to the invention for connecting parts of furniture, in particular parts of furniture with upholstered furniture, contains a first connecting fitting, having a first part configured to be attached to the first part of the furniture, and a second part configured to be attached to the second part of the furniture, and a second connecting part. fittings having a first piece configured to be attached to a first piece of furniture and a second piece configured to be attached to a second piece of furniture, wherein the first piece of the second connecting hardware includes a receiving element for the supporting edge of the second piece of the second connecting hardware, and the second piece is made with the ability to rotate relative to the first part around the supporting edge in an angular range. In this case, the first piece of the first connecting hardware has a guide surface that connects the second piece of the first connecting hardware to the sliding surface during rotation and further displaces the second piece in translation relative to the first piece, and the first piece has a locking element at the end of the guide surface, on in which the second part can be blocked from turning. The locking may be achieved, for example, by a protrusion on the second part engaging a recess on the first part at the end of the sliding surface.

In a first method according to the invention for assembling a piece of furniture having a first piece of furniture to which a first piece is attached, and a second piece of furniture to which a second piece of connecting hardware is attached, the support edge of the second piece is first applied to the receiving element of the first piece. The second part is then rotated relative to the first part about the reference edge in the first angular range until the sliding surface on the second part contacts the guide surface on the first part. The second piece is then further rotated about the support edge over a second angular range, wherein the sliding surface on the second piece moves along a guide surface on the first piece so that in addition to the rotational movement, there is also a translational displacement of the second piece relative to the first piece. Then, at the end of the guide surface, the second part is locked with the first part from rotation. The locking is preferably accomplished by engaging a protrusion on the opening of the second piece which is inserted into a recess on the first piece, preferably through a translational movement opposite to the rotational movement. In other words, if the second piece is slightly raised relative to the first piece during rotation, the second piece can be lowered relative to the first piece to lock, and during this lowering, the protrusion of the second piece engages the first piece. Of course, as an alternative, a protrusion may be provided on the first piece for engagement with an opening on the second piece.

In a second method according to the invention of assembling a piece of furniture comprising a first piece of furniture to which a first piece is attached, and a second piece of furniture to which a second piece of connecting hardware is attached, and a second piece of connecting hardware comprising a first piece configured to be attached to the first piece of furniture , and a second piece configured to be attached to a second piece of furniture, the supporting edge of the second piece of the second connecting hardware is first applied to the receiving member of the first piece of the second connecting hardware to then rotate the second piece relative to the first piece. The sliding surface on the second piece of the first connection hardware is then moved along the guide surface on the first piece of the first connection hardware during rotation, wherein the second piece is further moved translationally relative to the first piece to then lock the second piece on the first piece at the end of the guide surface against the rotation movement. Thus, the translational movement of the second part during the rotational movement around the support edge forming the rotation axis can be carried out both in the radial direction and perpendicular to the radial direction.

The invention is explained in more detail below with reference to the accompanying drawings illustrating several exemplary embodiments of the invention, in which:

in fig. 1 is an exploded perspective view of an exemplary embodiment of connection hardware according to the invention;

in fig. 2A-2C show several views of two connecting hardware parts during assembly;

in fig. 3A - 3D show four types of connecting fittings from FIGS. 1 with optional bending to provide rigidity during assembly with schematic furniture parts;

in fig. 4A and 4B show two views of a piece of furniture assembled on connecting fittings;

in fig. 5A-5C show several views of the piece of furniture from FIGS. 4 in assembled position;

in fig. 6A-6C show several views of a modified piece of furniture during assembly of the connecting hardware;

in fig. 7A and 7B show two types of connecting hardware from FIG. 6 with furniture parts shown schematically;

in fig. 8A - 8C show three views of the first connecting hardware piece shown in Figures 6 - 7;

in fig. 9A-9C show three views of the second connecting hardware piece shown in FIG. 6 -7;

in fig. 10 shows a perspective view of a device for connecting furniture parts in an assembled position;

in fig. 11A and 11B show two views of the device of FIG. 10 without furniture parts;

in fig. 12 is a perspective view of a first connection fitting of the device of FIG. 10 before assembly, and

in fig. 13 is a perspective view of a second connection fitting of the device of FIG. 10 to assembly.

The connection fitting 3 includes a first piece 10 and a second piece 20. Both pieces 10 and 20 are made of bent metal sheet and formed by stamping and bending. Alternatively, parts 10 and 20 may be manufactured from plastic or other material, such as by injection molding or 3D printing.

The first piece 10 has a substantially rectangular shape and includes at its first end a receiving element 11 obtained by folding back a wall 12 at one end. The result is a channel-shaped receiving element 11 into which the supporting edge 21 of the second part 20 can be inserted.

The first piece 10 includes a flat base surface 13 into which holes 14 are cut for fastening means, in particular screws, so that the first piece 10 can be attached to the first piece of furniture. The wall 12 may be oriented at an angle to the flat base surface 13, for example, from 90° to 20°, to form a channel-shaped receiving element 11.

On the side opposite to the receiving element 11, a bend 16 is provided on the first part 10, on which an inclined wall with a guide surface 15 is formed. A recess 17 is made in the bend area 16. The wall 12 and the wall with the guide surface 15 face each other.

The second piece 20 also includes a flat base surface 23 into which holes 24 are cut for fastening means for attaching the second piece 20 to the second piece of furniture. Extending from this base surface on opposite sides are steps 28 such that the two opposite end sections of the second piece 20 are located in a plane offset from, but substantially parallel to, the base surface 23. At the first end portion, a support edge 21 is formed, located between two projecting centering protrusions 22. The support edge 21 forms an axis of rotation of the second part 20 during assembly.

At the opposite end of the second piece 20, a hole 25 is provided into which a protrusion 27 projects toward the support edge 21. The protrusion 27 is formed by a sliding surface 26 that can contact a guide surface 15 on the first piece 10 during an assembly operation. The hole 25 is surrounded by the material of the second part 20 like a frame.

The assembly of connecting fittings 3 is shown in Fig. 2A-2C.

In a first step, the second piece 20 is positioned on the first piece 10 such that the support edge 21 is inserted into the receiving element 11. Thus, two centering projections 22 surround the receiving element and prevent the second piece 20 from moving parallel to the direction of the axis of rotation.

The second piece 20 is then rotated about the support edge 21 in a first angular range until the sliding surface 26 contacts the guide surface 15 with the projection 27. The rotation process is then continued in a second angular range in which the sliding surface 26 is moved along the guide surface 15. B As a result, the second part 20 no longer performs a purely rotational movement, but is additionally displaced, the second part 20 being displaced so that the supporting edge 21 is raised above the receiving element 11, as shown in FIG. 2 B. In this position, the centering lugs 22 are still in contact, enclosing the receiving member 11, and preventing the second piece 20 from moving relative to the first piece 10.

At the end of the guide surface 15, the protrusion 27 with the sliding surface 26 enters the area of the recess 17 at the bend 16 of the first part 10. Then the second part 20 is again shifted relative to the first part 10 so that the supporting edge 21 again rests against the receiving element 11. In this case, the protrusion 27 enters into engagement with the recess 17 of the first part 10, so that the second part 20 is fixed to the first part 10 to prevent rotation. Releasing the second piece 20 can now only be accomplished by displacing the second piece 20 to move the protrusion 27 out of the recess 17 and then turning back to release the two pieces 10 and 20 from each other again. Alternatively, it is also possible for the protrusion 27 and/or its connection with the second part 20 to be elastically and/or plastically deformed when the sliding surface 26, suitably dimensioned, slides and when entering the recess 17, the first part 10 thus has increased protection against unintentional release.

In fig. 3A-3D assembly of the connecting fittings 3 of FIG. 1 and 2 are shown in section, with the first furniture part 1 to which the first piece 10 is attached and the second furniture part 2 to which the second piece 20 is attached.

In fig. 3, the support edge 21 is inserted into the receiving element 11 of the first part 10. Now the second furniture part 2 with the second part 20 can be rotated around the support edge 21 until the sliding surface 26 on the projection 27 comes into contact with the guide surface 15 on the curved wall, as shown in Fig. 3 B. If the turning movement now continues, the second piece 20 not only rotates but also moves relative to the first piece 10. This causes the support edge 21 to disengage with the receiving member 11, as shown in FIG. 3C. The sliding surface 26 slides along the inclined guide surface 15.

When the projection 27 and the sliding surface 26 reach the end of the guide surface 15, the projection 27 can be inserted into the recess 17 on the first part 10, as shown in FIG. 3D. The second piece 20 is then moved again relative to the first piece 10 so that the support edge 21 again abuts the receiving member 11. The second piece 20, and therefore the second furniture piece 2, is prevented from rotating in any direction relative to the first piece 10 because the projection 27 abuts the edge guide surface 15, and rotation in opposite directions is limited by the base surface 13.

In fig. 3A-3D show an additional bend 29 formed integrally with the second piece 20 adjacent to the opening 25 and the projection 27. This bend 29 serves to stiffen and stabilize the second piece 20, in particular to counteract permanent plastic deformation of the projection 27 or its connection . Another function of the bend 29 may be to increase the bending moment of the material to deliberately produce elastic properties of the projection 27.

In fig. 4A and 4B show a piece of furniture 5 in accordance with the invention, in particular a piece of seating furniture such as a sofa, in which the first furniture part 1 is designed as a seat part and the second furniture part 2 is designed as a side part. A first furniture piece 10 is attached to the first furniture piece 1, and a second piece 20 is attached to the second piece of furniture 2. The connecting hardware 3 is oriented such that the axis of rotation is substantially horizontal when the second piece 20 is rotated relative to the first piece 10. In the position shown, the second piece furniture part 2 is located at an angle to the vertical, with two second parts 20 attached to the second furniture part 2, both of which fit into the receiving element 11 of the first furniture part 10 on the first furniture part 1.

To attach the second furniture part 2 to the first furniture part 1, the second furniture part 2 is rotated with the two second pieces 20, as shown in detail in FIG. 3A- 3D. Due to the horizontal orientation of the rotation axis, the weight forces are first absorbed by the receiving element 11, and then the second furniture part 2 with the second parts 20 is slightly lifted by the guide surface 15 to then be fixed at the end of the guide surface 15 under the action of the rotation force, since each of the protrusions 27 of the second parts 20 fits into the recess 17 on the first part.

In fig. 5A-5C show the assembled position of the furniture piece 5, with the second furniture piece 2 attached to the first furniture piece 1. Release of the second furniture part 2 can now only be achieved by lifting the second furniture part 2 relative to the first furniture part 1 to release the projection 27 from the recess 17, and then rotating the second furniture part 2 again to disengage the furniture parts.

In fig. 4A and 4B, the rotation axis for fixing furniture parts is horizontal. Of course, the connecting hardware 3 can also be used in other ways.

In fig. 6A-6C show an exemplary embodiment of a piece of furniture 5 which is provided with a first connection fitting 3 in accordance with the invention and an additional second connection fitting 30 comprising two pieces 110 and 120 which are mounted such that the second piece of furniture 2 rotates about a vertical axis with respect to the first part of 1 furniture to obtain fixation. The second furniture part 2 is attached to the first furniture part 1 using connecting fittings 3 according to the invention and additional connecting fittings 30.

In fig. 7A and 7B schematically show the assembly of a furniture part 2 with a first furniture part 1 according to FIG. 6. In the second piece 120, a support edge 121 is located on the curved receiving member 111 of the first piece 110, with two centering protrusions 122 engaging around the receiving member 111. In this exemplary embodiment, rotation occurs about a vertical axis and no translational motion is required. connecting hardware 30 when rotated inward, as shown in the case of connecting hardware 3. Instead, the curved stop 131 of the first piece 110 fits into the stop between the centering lugs 122 of the second piece 120. The furniture piece 2 is prevented from coming loose due to the connection that is created on the connecting hardware 3 when turning part 2 of furniture.

However, in this exemplary embodiment, the connection of the connecting hardware 3 is not performed by rotating around a horizontal axis, but by rotating the furniture part 2 around a vertical axis.

In the case of the connecting fitting 3, the sliding surface 26 of the second part 20 is in contact with the guide surface 15 of the first part 10. As a result, the second part 20 is raised relative to the first part 10 by a predetermined distance until the protrusion 27 of the second part 20 enters the recess 17 of the first part. 10, thus securing the connection. During this momentary raising and lowering of the second piece 20 of the connecting hardware 3, the vertical axis of rotation of the connecting hardware 30 exhibits a slight angular deviation from the vertical in the sense that the supporting edge 121 of the second piece 120 abuts and rotates slightly around various areas of the receiving member 111.

In this way, in the assembled position, rotation or displacement of the combination of connecting fittings 3 and 30, in particular in the direction of gravity, is prevented. To release this connection, part 2 of the furniture must be lifted against the direction of gravity in the area of the connecting fittings 30, in which case the protrusion 27 disengages from the recess 17.

In fig. 8A-8C show an embodiment of the first piece 110 of the connection hardware 30. The plate portion of the first piece includes a plurality of holes 114 for fasteners. A curved receiving member 111 is integrally formed on the first side, and a curved stop 131 is formed on the second side opposite the first side.

In fig. 9A-C show an embodiment of a second piece 120 of the connecting hardware 30. On each of two opposite sides of the plate section having holes 124, a support edge 121 is located between two centering projections 122. One of the two support edges 121 of the second piece 120 is preferably a vertical axis. , around which part 2 of the furniture rotates. This support edge 121 engages the receiving element 111 of the first part 110 and rotates until the other support edge 121 is adjacent to the curved stop 131. When rotated, the stop 131 of the first part 110 is located between the centering projections 122 of the second part 120, by whereby the connection is fixed in two of the three spatial directions.

The second part 120 is also provided with two side bends 129 that serve as stiffeners to resist deformation. However, optionally or simultaneously, they may also serve as spacers between the first piece 110 and the second piece 120 to establish a predetermined minimum distance between the pieces.

The furniture part 2 is attached to the furniture part 1 by additionally connecting the first and second parts 10 and 20 of the connecting fittings 3, the assembly of which is described with reference to FIG. 2 and 3.

As an alternative to the form-fitting connection or abutment of the receiving element 11 or 111 between two centering protrusions 22 or 122 and/or the form-fitting connection of the abutment 131 between two centering protrusions 122, another form-fitting connection may be selected, for example by means of protrusions engaging into the holes on the corresponding part.

For the purposes of the present invention, the arrangement of the first piece 10 or 110 and the second piece 20 or 120 on the first furniture part 1 and the second furniture part 2, respectively, is interchangeable. The parts can be efficiently assembled in such a way that depending on which parts of the furniture need to be connected and how gravity acts, the parts are arranged accordingly.

In fig. 10 shows a device for connecting pieces of furniture in which a first connection fitting 40 and two second connection fittings 50 are provided, although the number of connection fittings 50 may also vary, for example only one connection fitting 50 or more than two connection fittings 50 may be provided.

Each connection fitting 50 includes a first piece 10b that can be attached to the first furniture part 1, in particular by means of a base surface 13. A second piece 20b that can be attached to the first piece 10b can be attached to the second furniture part. On the first piece 10b, between the wall 12 and the base surface 13, a receiving element is formed on which the supporting edge of the second piece 20b can be rotated.

The first connection fitting 40 includes a first piece 10a attached to the first furniture part 1 and a second piece 20a attached to the second furniture part. A guide surface 15 is formed on the first piece 10a along which the second piece 20a of the first connecting hardware 40 is moved by the sliding surface when the second piece 20b of the first connecting hardware 50 is rotated around the supporting edge as a rotation axis. The displacement along the guide surface 15 occurs at least partially in the radial direction, i.e. in fig. 10 in a vertical upward direction until the end of the guide surface is reached, and the second part with the second piece 20a and the second piece 20b is lowered to fix the connecting hardware 40.

In fig. 11A and 11B, the first connection hardware 40 and the second connection hardware 50 are shown without furniture parts. In the first connecting fitting 40, a recess is formed behind the guide surface 15 into which a projection 27 on the second piece 20a fits. Thus, a recess is formed in the bending area 16 on the first piece 10a, which is attached to the base surface 13a on the first furniture piece 1.

In the second connection fitting 50, a curved receiving member 11 is formed on the first piece 10b, which is used to accommodate a support edge 21 provided on the second piece 20b. Thus, the support edge 21 is placed between the wall 12 and the base surface 13b. Downwardly projecting centering projections 22 are formed laterally adjacent to the support edge 21 to prevent or limit movement of the support edge 21 in the longitudinal direction.

In fig. 12 shows the first connection hardware 40 before assembly. The first part 10a has a base surface 13a with holes 14 for fastening to the first part of the furniture and has a recess 17 in the area of the bend 16 for receiving the protrusion 27. In addition, next to the bend 16, a guide surface 15 is made integral with the first part 10a. The second part 20a of the first connecting hardware 40 includes a base surface 23a having holes 24 for attaching the second piece 20a to the second piece of furniture. An opening 25 is provided, integral with the base surface 23a and offset by a step 28, into which a protrusion 27 with a sliding surface 26 protrudes in the downward direction. During assembly, the sliding surface 26 may move along the guide surface 15.

In fig. 3 shows the second connection hardware 50 before assembly. The first piece 10b can be attached to the first furniture part 1 via the base surface 13b using fastening means that pass through the holes 14. The receiving element 11 and the bent wall 12 are integral with the base surface 13b.

The second piece 20b of the second connecting hardware 50 has a lower support edge 21 between two centering projections 22 and a base surface 23b that is offset by a step 28 and has holes 24.

To assemble the device, the two second parts 20b of the second connecting fitting 50 are positioned on the first parts 10b so that the supporting edge 21 is in each case located in the receiving element 11. The second furniture part 2 can then be rotated relative to the first furniture part 1, the rotation axis being specified the supporting edge 21 and the receiving element 11. The rotation occurs until the sliding surface 26 on the projection 27 meets the guide surface 15, so that then, in addition to the pure turning movement, a sliding movement takes place which has a directional component in radial direction relative to the axis of rotation. As a result of this slight lifting of the second piece of furniture, compared to a simple turning movement, the protrusion 27 moves along the guide surface 15 until it reaches the recess 17. The protrusion 27 then engages with the recess 17 and the second furniture part 2 is lowered relative to the first part 1 of the furniture until the supporting edges 21 abut against the two pieces 20b in the receiving member 11. At the first connection hardware 40, the second piece 20b of the first connection hardware 40 is locked from rotational movement because the protrusion 27 fits into the recess 17.

List of item numbers

1 - first piece of furniture

2 - second part of the furniture

3 - connecting fittings

5 - piece of furniture

10, 10a, 10b - first part

11 - receiving element

12 - wall

13, 13a, 13b - base surface

14 - hole

15 - guide surface

16 - bend

17 - notch

20, 20a, 20b - second part

21 - supporting edge

22 - centering protrusion

23, 23a, 23b - base surface

24 - hole

24 - hole

26 - sliding surface

27 - protrusion

28 - step

29 - bend

30 - connecting fittings

40 - connecting fittings

50 - connecting fittings

110 - first part

111 - receiving element

114 - hole

120 - second part

121 - supporting edge

122 - centering protrusion

124 - hole

129 - bend

131 - stop

Claims (28)

1. Connecting fittings (3) for a piece of furniture (5), in particular a piece of upholstered furniture, having a first piece (10) configured to be attached to a piece of furniture (1), and a second piece (20) configured to be attached to the second part (2) of the furniture, wherein the first part (10) has a receiving element (11) for the supporting edge (21) of the second part (20), and the second part (20) is configured to rotate relative to the first part (10) around the supporting edges (21) in the first angular range, characterized in that the first part (10) has a guide surface (15), which contacts the second part (20) with the sliding surface (26) during rotation in the second angular range and additionally displaces the second part (20) in translational movement relative to the first part (10), and the first part (10) has a locking element at the end of the guide surface (15), on which the second part (20) can be blocked from rotation. 2. Connecting fittings according to claim 1, characterized in that the blocking element is formed in the form of a recess (17) configured to accommodate the protrusion (27) of the second part (20). 3. Connecting fittings according to claim 1 or 2, characterized in that the first part (10) has a bent wall on which a guide surface (15) is formed. 4. Connection fittings according to one of the preceding paragraphs, characterized in that the first part (10) contains a U-shaped or L-shaped curved receiving element (11). 5. Connecting fittings according to one of the previous paragraphs, characterized in that the second part (20) has a hole (25) configured to insert into it a bent wall with a guide surface (15) of the first part (10). 6. Connecting fittings according to claim 5, characterized in that a protrusion (27) is formed on the hole (25), configured to be inserted into the recess (17) on the first part (10). 7. Connecting fittings according to one of the preceding claims, characterized in that the supporting edge (21) of the second part (20) is located between two centering protrusions (22), while the centering protrusions (22) engage around the receiving element (11) on first part (10) during rotation. 8. Connecting fittings according to one of the previous paragraphs, characterized in that the first part (10) has a flat base surface (13), configured to attach the first part (1) of furniture to it using fasteners. 9. Connecting fittings according to one of the previous paragraphs, characterized in that the second part (20) has a flat base surface (23), configured to attach the second part (2) of furniture to it using fasteners. 10. Connecting fittings according to one of the previous paragraphs, characterized in that the first part (10) and/or the second part (20) is made of bent metal sheet. 11. A piece of furniture (5), having a first furniture part (1) and a second furniture part (2), which are attached to each other by at least one connecting fitting (3) according to one of the preceding paragraphs. 12. A piece of furniture according to claim 11, characterized in that the second part (2) of the furniture is attached to the first part (1) of the furniture using the first connecting fittings (3) according to one of claims. 1-10 and additional connecting fittings (30), while both connecting fittings (3, 30) are designed to be installed with one rotary movement. 13. A device for connecting parts of furniture, in particular furniture parts of a piece of upholstered furniture, containing a first connecting fitting (3, 40) having a first part (10, 10a), configured to be attached to the first part (1) of furniture, and a second part (20, 20a) configured to be attached to the second furniture part (2), and a second connection fitting (30, 50) having a first piece (10b, 110) configured to be attached to the first furniture part (1), and a second piece (20b, 120) configured to be attached to a second piece of furniture (2), wherein the first piece (10b, 110) of the second connecting fittings (30, 50) comprises a receiving element (11, 111) for the supporting edge (21, 121) of the second part (20b, 120) of the second connecting fittings (30, 50), and the second part (20b, 120) is configured to rotate relative to the first part (110) around the supporting edge (21, 121) in an angular range, characterized in that that on the first part (10, 10a) of the first connecting fittings (3, 40) there is a guide surface (15), which connects the second part (20a, 20) of the first connecting fittings (3, 40) with the sliding surface (26) during rotation and additionally displaces the second part (20, 20a) in translational movement relative to the first part (10, 10a), and the first part (10, 10a) has a locking element at the end of the guide surface (15), on which the second part (20) can be blocked from turning. 14. A device for connecting parts of furniture according to claim 13, containing a first connecting fitting (3) and a second connecting fitting (30) according to one of claims. 1-10. 15. The device according to claim 13, characterized in that when rotating around the supporting edge (21), the translational displacement along the guide surface (15) occurs at least partially in the radial direction with respect to the supporting edge (21), which serves as the axis of rotation. 16. A method for assembling a piece of furniture (5) having a first part (1) of furniture to which a first part (10) is attached, and a second part (2) of furniture to which a second part (20) of connecting fittings (3) is attached, including the following steps: - apply the supporting edge (21) of the second part (20) to the receiving element (11) of the first part (10); - rotate the second part (20) relative to the first part (10); - moving the sliding surface (26) on the second part (20) along the guide surface (15) on the first part (10) during the specified rotation, while the second part (20) is additionally displaced in translation relative to the first part (10), and - lock the second part (20) on the first part (10) at the end of the guide surface (15) against the rotary movement. 17. The method according to claim 16, characterized in that the locking is carried out by engaging the protrusion (27) on the hole (50) of the second part (20) in the recess (17) on the first part (10). 18. A method for assembling a piece of furniture (5) having a first part (1) of furniture to which a first part (10) is attached, and a second part (2) of furniture to which a second part (20) of connecting fittings (3) is attached, and also comprising a second connecting fitting (30) having a first part (110) configured to be attached to the first furniture part (1), and a second part (120) configured to be attached to the second furniture part (2), comprising the following steps : - place the supporting edge (121) of the second part (120) of the second connecting fittings (30) into the receiving element (111) of the first part (110) of the second connecting fittings (30); - rotate the second part (120) relative to the first part (110); - moving the sliding surface (26) on the second part (20) of the first connecting fittings (3) along the guide surface (15) on the first part (10) of the first connecting fittings (3) during the specified rotation, while the second part (20) additionally displaced in translational motion relative to the first part (10), and - lock the second part (20) on the first part (10) at the end of the guide surface (15) against the rotary movement. 19. Method according to claim 18, characterized in that the translational displacement relative to the axis of rotation formed by the supporting edge (21) occurs at least partially in the radial direction. 20. Method according to claim 18, characterized in that the translational displacement occurs at least partially perpendicular to the radial direction relative to the axis of rotation formed by the supporting edge (121).