Socket Body

Abstract

The socket body (1) includes a socket space (3) defined by a socket wall (2) and extending along a central axis (M) for accommodating a plug pin. The socket space (3) has a socket opening (6) through which a plug pin can be pressed into the socket space (3). At least one notch (4) extends through the socket wall (2) in a cross section including the central axis (M), inclined at an angle (α) relative to the central axis (M), to form at least one spring clip (5), which is bent into the socket space (3). The spring clip (5) has an edge (7) on its front side facing the socket space. Furthermore, the spring clip has at least one recess (8), in particular exactly one recess (8), on both sides of which are formed contact points (9) for contacting a plug pin pressed into the socket space (3).

Description

Technical Field

[0001] The present invention relates to a socket body described in the preamble of claim 1 and a method for manufacturing a corresponding socket body as claimed in claim 15.

Background Art

[0002] Socket bodies for electrical plug connections are known from the prior art. Such socket bodies have a socket opening into which a plug pin can be pushed. Electrical contact between the socket body and the plug pin occurs between the outer surface of the plug pin and the inner surface of the socket opening.

[0003] Patent Document 1 discloses a socket body provided with a spring clip protruding into the socket space. The socket body according to Patent Document 1 has various drawbacks. Mechanical wear during the insertion operation is relatively large in the region of the spring clip. Furthermore, the contact between the spring clip and the plug pin pushed into the socket space is not geometrically defined and thus constitutes a drawback.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

[0005] Due to this prior art, an object of the present invention is to provide a socket body that overcomes the drawbacks of the prior art. In particular, an object of the present invention is to identify a socket body provided with a spring clip that provides improved contact characteristics with respect to a plug pin.

[0006] The subject matter recited in claim 1 solves this problem. According to claim 1, the socket body is a socket body having a socket space defined by a socket wall and extending along a central axis for accommodating plug pins. The socket space has a socket opening into which a plug pin can be pushed. At least one cut extends through the socket wall so that at least one spring clip is formed, and the spring clip is bent into the socket space. This spring clip has, on the front side, an edge facing the socket space. The spring clip is configured to have at least one recess, particularly exactly one recess, formed on both sides with a contact position, preferably a contact point, for causing contact with a plug pin pushed into the socket space.

[0007] The recess provides a specific contact position or contact point that improves the electrical contact between the socket body and the plug pin.

[0008] Furthermore, the specific contact is advantageous for the actual contact process of pushing the plug pin into the socket space. This is because mechanical wear in the region of the edge can be reduced compared to an edge without a recess. As a result, more insertion cycles are possible without changing the contact characteristics.

[0009] Arranging one recess is advantageous with respect to electrical contact. In the case of a large diameter, having several recesses can particularly reduce mechanical wear.

[0010] Preferably, at least one of the recesses is located at the center of the spring clip when viewed in the direction of the central axis. In other words, the recess is located at the center of the edge defining the spring clip when viewed from the socket opening.

[0011] As a result, an arrangement that is symmetric with respect to the plug pins can be obtained in the direction of the central axis. This optimizes the force during the insertion of the plug pins. Further, the plug pins are easily centered within the socket space.

[0012] In the first embodiment, the spring clip has, on the front side, an edge facing the socket space, and the recess is arranged at this edge.

[0013] In summary, the socket body according to the first embodiment is a socket body provided with a socket space defined by socket walls and extending along a central axis for accommodating plug pins. The socket space has a socket opening into which the plug pins can be pushed. At least one cut extends through the socket wall at a predetermined angle with respect to the central axis in a cross-section including the central axis so that at least one spring clip is formed, and the spring clip is bent within the socket space. This spring clip has, on the front side, an edge facing the socket space. The spring clip has at least one recess, preferably exactly one recess, at the edge configured such that one contact point for making contact with the plug pins pushed into the socket space is formed on both sides.

[0014] In addition to the advantageous electrical contact, burrs that may occur at the edge and remain on the spring clip due to manufacturing are removed at least at the contact points where the spring clip contacts the plug pins. The burrs are removed by the recesses. This type of burr typically increases mechanical wear.

[0015] The at least one recess preferably completely divides the edge in the region of this recess. That is, due to the arrangement of the recess, the edge no longer substantially exists in the region of this recess.

[0016] At least one recess preferably extends into the front face of the spring clip facing the socket opening and / or into the wall face of the spring clip facing the socket opening.

[0017] In this case, the front face is the face that can be recognized when looking into the socket space through the socket opening.

[0018] At least one recess particularly preferably extends into the front face of the spring clip facing the socket opening and into the wall face of the spring clip facing the socket opening. This ensures that the edge is reliably severed during the manufacturing process.

[0019] Preferably, when viewed in a direction transverse to the center line, at least one recess extends from the edge across the entire front face, or when viewed in a direction transverse to the central axis, at least one recess extends from the edge across at most half of the front face. The direction transverse to the central axis can also be understood as the radial direction.

[0020] The contact points are preferably formed on the edge, and in particular, the contact points are respectively located at the end points of the edge forming the transition to the recess.

[0021] Preferably, relative to the central axis, on the side opposite the recess having two contact points, a third contact point is provided by the surface of the socket wall.

[0022] As a result, three contact points are formed. These contact points are preferably positioned such that the contact points form the vertices of an acute-angled isosceles triangle. As a result, a situation is achieved where the contact points are connected to the plug pins at three positions.

[0023] Depending on the configuration of the surface of the socket wall, the third contact point is provided by a contact line. That is, the third contact point is part of the contact line.

[0024] The third contact point is preferably located between these two contact points such that, when viewed in the direction of the central axis, a line that forms a right angle with this central axis and extends through the third contact point passes through the center between the two contact points provided by the recess. As a result, it is possible to provide a contact that is symmetric with respect to the plug pin.

[0025] The notch preferably extends at an inclination angle (α) with respect to the central axis in a cross-section including the central axis.

[0026] The notch preferably extends over a first section inclined at an inclination angle (α) with respect to the central axis and extends to a second section parallel to the central axis.

[0027] When the angle α extends with a gentle gradient with respect to the central axis, the second section can be omitted. When the angle α extends with a steep gradient with respect to the central axis, the second section is advantageous for the spring action of the spring clip.

[0028] Preferably, the notch surface of the section extending at a predetermined angle with respect to the central axis is preferably a part of the surface of a flat cylindrical section extending at an inclination angle with respect to the central axis.

[0029] However, the notch may be a rounded notch. Since this notch is also rounded, it extends at an inclination angle with respect to the central axis in a small section.

[0030] The following describes further optional and advantageous features of the socket body according to the first embodiment.

[0031] The free end of the spring clip is directed towards the socket opening. That is, during the pushing of the plug body into the socket space, it contacts the spring clip at a relatively shallow insertion depth early on. As a result, the required insertion force increases rapidly, thereby enabling a specific insertion procedure. However, the free end of the spring clip may be directed away from the socket opening.

[0032] The number of incisions may be variable depending on the embodiment, and thereby the number of spring clips also changes. This means that at least one another incision forms another spring clip configured substantially identically to the first spring clip. In these variations, two or three or four or more incisions and the corresponding number of spring clips are possible. The incisions are preferably distributed and arranged circumferentially of the socket body, and the intervals between the incisions are configured to be equal. Also, it is possible that a plurality of incisions are arranged spaced apart from each other in the direction of the central axis.

[0033] Depending on the configuration and number of spring clips, the electrical contact is - provided between the plug pin pushed into the socket space and the spring clip, and between the surface of the socket space and the spring clip, or - provided between the plug pin pushed into the socket space and the spring clip.

[0034] Preferably, the incision is arranged such that a cylindrical guide path extending into the socket space from the end face of the socket body is formed to accommodate the plug pin, and this cylindrical guide path has an inner wall completely surrounding the central axis. When viewed in the pushing direction, the socket opening is first adjacent to the cylindrical guide path, and then, as the depth into the socket space further increases, the spring clip protrudes into the socket space. That is, in other words, the socket opening is adjacent to a cylindrical guide path that guides the plug pin appropriately by the inner wall during the pushing into this socket opening. This has the advantage that the central axis of the plug pin is directionally aligned collinearly with the central axis of the socket space before the plug pin contacts the spring clip.

[0035] Preferably, the notch is defined by the upper notch surface on the upper side and the lower notch surface on the lower side, and both of these notch surfaces preferably extend parallel to each other when the spring clip is not bent. In the deformed state, the spring clip is preferably positioned such that the free end of the upper notch surface contacts the lower notch surface. Despite the simplicity of the spring clip, certain deformations are made possible by this contact during the manufacture of the socket body. Alternatively, in the deformed state, the spring clip is preferably positioned such that the free end of the upper notch surface does not contact the lower notch surface.

[0036] Accordingly, the notch is substantially defined by the upper notch surface and the lower notch surface. With respect to the notch surfaces, the terms "upper" and "lower" shall be construed to mean that when viewed in cross-section, the lower notch surface is located closer to the socket space than the upper notch surface.

[0037] The notch surfaces preferably each extend into the socket body through the side surface. In another embodiment, it is also possible that at least the lower notch surface extends into the socket body from the end face of the socket body. That is, the notch extends into the socket body from the side surface and the end face.

[0038] A more advantageous embodiment is the notch transversely intersects the central axis and, when viewed parallel to its cutting plane, completely penetrates the socket body, and / or the notch has a notch width that is less than 10% of the maximum notch depth when viewed in the direction of the central axis, and / or the notch is positioned at an angle α of 30° to 60°, particularly 40° to 50°, particularly 45° with respect to the central axis when viewed in cross-section characterized thereby.

[0039] Preferably, the cutting width is larger in the case of the socket body having a larger diameter than in the case of the socket body having a smaller diameter. That is, a cut having a larger cutting width is provided for the socket body having a larger diameter, while a cut having a smaller cutting width is provided for the socket body having a smaller diameter.

[0040] The recessed surface and the cut surface are preferably flat surfaces. A flat surface is understood to mean a surface extending within one plane.

[0041] According to the second embodiment, the spring clip has a wall surface facing the socket space, the wall surface facing the socket space has a reduced-diameter region, and the recess extends into the wall surface in the reduced-diameter region.

[0042] Preferably, the reduced-diameter region has a diameter smaller than the diameter of the socket opening. Particularly preferably, the wall surface extends conically to a reduced diameter after a cylindrical section adjacent to the socket opening, and then widens conically again. The recess is arranged at the transition of the two cones.

[0043] Preferably, the region has a minimum inner diameter, and the recess extends through this minimum inner diameter when viewed in the direction of the central axis.

[0044] Preferably, at least two spring clips are provided, which are evenly distributed and arranged in the circumferential direction. Particularly preferably, at least three spring clips are provided to ensure good centering and contact of the plug within the socket space.

[0045] Preferably, at least one spring clip is connected to the socket wall at each end, and the reduced-diameter region is located between the two connection positions.

[0046] Preferably, in the case of the second embodiment, the notch extends parallel to the central axis. The spring clip is provided by two notches located on the side of the spring clip.

[0047] Preferably, the spring clip according to the second embodiment is preferably arranged such that a cylindrical guide path is formed that extends from the end face of the socket body into the socket space to accommodate the plug pin and has an inner wall that completely surrounds the central axis. When viewed in the pushing direction, first, the cylindrical guide path is adjacent to the socket opening, and then, as the depth into the socket space further increases, the spring clip protrudes into the socket space. That is, in other words, adjacent to the socket opening is a cylindrical guide path that guides the plug pin appropriately by the inner wall during pushing into the socket opening. This has the advantage that the central axis of the plug pin is collinearly aligned with the central axis of the socket space before the plug pin contacts the spring clip.

[0048] The following describes general features that may optionally be used in all embodiments.

[0049] The recess preferably extends over a circumferential angle of at most 25°, particularly at most 10° or at most 5° with respect to the circumferential direction of the socket space. This circumferential angle preferably depends on the diameter of the socket opening. In the case of a large diameter, it is preferable that the circumferential angle is also large, and in the case of a small diameter, it is preferable that the circumferential angle is also small.

[0050] At least one recess may be fabricated by various techniques.

[0051] In one embodiment, at least one recess is provided by embossing. The recess can be formed, for example, by an embossing pin that is guided through the socket opening through the socket space to the edge. By applying an appropriate force to this embossing pin, the edge is deformed, and as a result, the recess is formed.

[0052] In another embodiment, at least one recess is provided by plastic working and / or machining of the edge.

[0053] In the case of machining, a corresponding tool, for example a milling tool, is preferably guided into the socket space via the socket opening and then the edge is machined, thereby forming the recess.

[0054] Preferably, the socket space or the socket opening defines a geometric envelope cylinder having a circular cross-section, and the recess is located only inside the envelope cylinder. The envelope cylinder preferably has the diameter of the socket opening.

[0055] This has the advantage that the recess can be machined from the socket opening when the spring clip is already bent.

[0056] During production, preferably, in a first step, a socket body with a notch and a spring clip is produced, and preferably, in a second step, a tool for producing the recess is guided through the socket opening into the socket space up to the position of the edge, thereby producing the recess.

[0057] The method for producing the socket body described in the above description is characterized in that, in a first step, a socket body with a notch and a spring clip is produced, and in a second step, a tool for producing the recess is guided through the socket opening into the socket space up to the position of the recess, or up to the edge, or through the diameter structure, thereby producing the recess.

[0058] Further embodiments are described in the dependent claims.

[0059] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. The drawings are for illustrative purposes only and should not be construed as limiting.

Brief Description of the Drawings

[0060]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Mode for Carrying Out the Invention

[0061] In FIGS. 1 to 6, a socket body 1 according to the first embodiment of the present invention is shown, and in FIGS. 7 to 12, a socket body 1 according to the second embodiment of the present invention is shown. The same parts are denoted by the same reference numerals. The socket body 1 is made of a conductive material and is used to accommodate a plug pin (not shown). Electrical contact can be made between the socket body 1 and the plug pin.

[0062] Figures 1 to 2 show the socket body 1 in an intermediate step during production. Figures 3 to 6 show the finally produced socket body 1.

[0063] The socket body 1 according to two embodiments comprises a socket space 3 which is defined by a socket wall 2 and extends along a central axis M for accommodating plug pins. Along the extension line of this central axis M, a contact section 19 is adjacent to the socket space 3. This contact section 19 is connected to another electrical conductor (not shown), for example a cable.

[0064] The socket space 3 has a socket opening 6 into which a plug pin can be pushed. In the two embodiments, the socket body 1 has at least one cut 4 in the socket wall 2, and by this cut 4, a spring clip 5 is formed. The spring clip 5 according to the first embodiment has a free end 17, and at this free end 17, the spring clip 5 projects into the socket space 3. The spring clip 5 according to the second embodiment is connected to the socket wall 2 at each end, and the spring clip 5 projects into the socket space 3 at a wall surface 11 facing the socket space 3.

[0065] According to the first embodiment, the cut 4 extends through the socket wall 2 inclined at an angle α with respect to the central axis M in a cross-section including the central axis M, and thus at least one spring clip 5 is formed. This spring clip 5 is bent within the socket opening 3 and projects into the socket space 3. Between the spring clip 5 and a plug pin pushed into the socket space 3, an electrical contact can be generated between this plug pin and the socket body 1.

[0066] The spring clip 5 has, on the front side, an edge 7 facing the socket space 3. This is the edge 7 that the plug pin contacts during the pushing operation. After the socket body 1 and the spring clip 5 are manufactured, the edge 7 is a continuous edge, as shown in FIGS. 1 and 2. Therefore, the edge 7 has no discontinuities. Due to manufacturing reasons, it is not possible to rule out the edge 7 having burrs, which is disadvantageous for the pushing operation. This is particularly the case with regard to wear and uncontrolled electrical contact.

[0067] According to the present invention, the spring clip 5 has at least one recess 8, particularly exactly one recess 8, in the edge 7. This recess 8 divides the edge 7 after the edge 7 is manufactured. The recess 8 is shown in FIGS. 3 to 6. The recess 8 is arranged such that one contact point 9 for contacting the plug pin pushed into the socket space 3 is formed on each side of this recess 8. This contact point 9 is formed by the end of the edge 7 at the transition from the edge 7 to the recess 8.

[0068] The recess 8 shown in the drawings is a recess 8 that extends into the spring clip 5 from the front. That is, the recess 8 is arranged at the free end 17 of the spring clip 5. This free end 17 is the non-fixed end. On the side opposite the free end 17, a fixed end 18 of the spring clip is provided, and through this fixed end 18, the spring clip 5 is connected to the socket body 1. In the illustrated embodiment, the free end 17 is directed towards the socket opening 6, and as a result, during the pushing operation, first, the plug pin contacts the free end 17, that is, the edge 7 and the recess 8. Then, during further pushing, the plug pin is pressed in the direction of the fixed end 18.

[0069] The recess 8 is a mechanical recess, also referred to as a depression or a concavity. The term "recess" is understood to mean a structure that extends into the spring clip 5 and provides a corresponding hollow portion that can be extremely small. When viewed from the front in the direction of the central axis M, the recess 8 is located at the center of the spring clip 5. This can be clearly observed in FIG. 5. In this case, the recess 8 is located directly above the central axis M. At least one recess 8 completely divides the edge 7 in the region of this recess 8. That is, the edge 7 as shown in FIGS. 1 and 2 is completely divided by the recess as shown in FIGS. 3 to 6. The edge 7 no longer exists in the region of the recess 8.

[0070] In the illustrated embodiment, the spring clip 5 has a front surface 10 that is visible through the socket opening 6 from the front, and a wall surface 11 that faces the socket space 3. In this case, the recess 8 extends into the front surface 10 and the wall surface 11. Therefore, this is a recess 8 that extends from the edge 7 into both the front surface 10 and the wall surface 11. With respect to the radial direction Z that crosses the central axis M, depending on the configuration of the spring clip 5, the recess 8 extends substantially over the entire front surface 10 in the radial direction, or the recess 8 extends over the front surface 10 only up to the maximum half of the front surface 10 in the radial direction from the edge 7.

[0071] With respect to the circumferential direction of the socket space 3, the recess 8 extends over a circumferential angle β of up to 25°, particularly up to 10° or up to 5° at most in the circumferential direction. Therefore, the region where the recess 8 exists is extremely small.

[0072] At least one recess 8 is preferably provided by embossing. The embossed portion may be manufactured by plastic working. In another embodiment, the recess 8 is provided by plastic working and / or machining of the edge 7.

[0073] As already described, the contact point 9 is formed on the edge 7. In particular, the contact point 9 is provided at the end point 12 of the edge 7 that forms the transition to the recess 8 in each case. Considering FIG. 5, it is clear that in the illustrated embodiment, a third contact point 13 is arranged on the side opposite to the recess 8 with respect to the central axis M. The plug pin is in electrical contact with the socket body 1 via the three contact points 9, 13. The third contact point 13 is substantially provided by the surface 14 of the socket wall 2 on the side opposite to the two contact points 9 or on the side opposite to the recess 8. The third contact point 13 may be dot-shaped or linear.

[0074] When viewed in the direction of the central axis M, the third contact point 13 is located between the two contact points 9 such that a line L that is perpendicular to the central axis M and extends through the third contact point 13 passes through the center between the two contact points 9 provided by the recess 8. In other words, a triangle is defined between the contact points 9, 13, and this triangle is an acute triangle. With these three contact points, an advantageous electrical contact with respect to the plug pin can be achieved.

[0075] In another embodiment, another cut may form another spring clip 5 that is substantially configured the same as the above-described spring clip including the recess 8. For example, it is also possible that two spring clips 5 are arranged on opposite sides of each other, or more than two spring clips 5 are arranged at equal angular intervals from each other. In this case, the third contact point is not provided by the surface of the socket space 3, but rather by an additional spring clip, that is, by the contact point 9 arranged laterally with respect to the recess 8.

[0076] The socket space 3 defines a geometric envelope cylinder having a circular cross-section. In this case, the recess 8 is located exclusively inside the envelope cylinder. The envelope cylinder can be recognized from FIG. 5. The envelope cylinder is labeled with the reference sign H. Such an arrangement of the recess is advantageous because the recess 8 can be formed by a tool fed through the socket opening 6.

[0077] As can be clearly seen from FIG. 6, the notch extends over a first section 15 inclined at an angle α with respect to the central axis M. Then, the notch 4 extends parallel to the central axis M in a second section 16. Notches of other shapes, for example, curved notches are also possible.

[0078] FIGS. 7 to 12 show a second embodiment of the present invention. The same parts are denoted by the same reference numerals, and reference is made to the above description.

[0079] FIGS. 7 to 8 show the socket body 1 in an intermediate step during production. FIGS. 9 to 12 show the finally produced socket body 1.

[0080] The second embodiment has at least one spring clip 5, and this spring clip 5 is fixedly connected to the socket body 1 at its two ends 20. In the illustrated embodiment, three spring clips 5 are arranged. The spring clip 5 projects into the socket space 3 in the radial direction. Towards this socket space 3, the spring clip 5 has a wall surface 11 facing the socket space. This wall surface 11 has a reduced-diameter region 21. The recess 8 is arranged in this reduced-diameter region 21. In this case, the recess extends through the reduced-diameter region 21 in the direction of the central axis M and extends into the wall surface 11 in the radial direction. Thereby, at the narrowest part, two contact positions, particularly two contact points 9, are provided laterally with respect to the recess.

[0081] The reduced-diameter region 21 has a diameter smaller than the diameter of the socket opening 6. In the illustrated embodiment, the wall surface 11 extends in a conical shape to the minimum diameter as seen from the socket opening 6 and then widens again in a conical shape. In this case, the recess 8 is arranged in the region of the minimum diameter.

[0082] During the insertion of the plug pin into the socket space 3, at least one spring clip is deflected in a direction away from the central axis M in a direction transverse to the central axis M.

[0083] At least one spring clip 5 is provided with two cuts 4 that are parallel to each other and are positioned parallel to the central axis M. These cuts 4 extend completely through the socket wall 2 from the outer surface.

[0084] FIG. 11 further shows the circumferential angle β of the recess. With respect to the circumferential direction of the socket space 3, the recess 8 extends over a circumferential angle β of at most 25°, in particular at most 10° or at most 5°. Thus, it is a very small area where the recess 8 is present. However, the angle may also be greater than 10°.

[0085] The cross-sectional view of FIG. 12 shows that the recess 8 extends through the reduced-diameter region 21. In this case, the recess 8 extends in the direction of the socket opening 6 and in the direction of the contact section 19 as seen from the minimum diameter that theoretically forms a line.

[0086] The method for manufacturing the socket body 1 according to both of the above-described embodiments is carried out as follows. In the first step, the socket body 1 with the cuts 4 and the spring clip 5 is manufactured. In the second step, the recess 8 is manufactured. The tool for manufacturing this recess 8 is guided through the socket opening 6 into the socket space 3 to the position of the recess. The tool may be a cutting tool or an embossing tool.

Explanation of Signs

[0087] 1 Socket body 2 Socket wall 3 Socket space 4 Cut 5 Spring clip 6 Socket opening 7 Edge 8 Recess 9 Contact point 10 Front surface 11 Wall surface 12 End point 13 Third contact point 14 Surface 15 First section 16 Second section 17 Free end 18 Fixed end 19 Contact section 20 End 21 Region H Enveloping cylinder L Line M Central axis Z direction α Angle β Angle

Claims

1. A socket body (1) having a socket space (3) defined by socket walls (2) and extending along a central axis (M) for receiving a plug pin, The socket space (3) has a socket opening (6) into which the plug pin can be pushed, At least one cut (4) extends through said socket wall (2) to form at least one spring clip (5), said spring clip (5) being bent into said socket space (3); said spring clip (5) having at least one recess (8) on both sides of which is formed a contact point (9) for making contact with a plug pin pressed into said socket space (3); The spring clip (5) has, on its front side, an edge (7) facing the socket space (3), on which the recess is located, The socket body (1), characterized in that the contact points (9) are formed on the edge portion (7), the contact points (9) being located at end points (12) of the edge portion (7) which form a transition to the recess (8).

2. 2. The socket body (1) according to claim 1, characterized in that the spring clip (5) has one recess (8).

3. 3. Socket body (1) according to claim 1 or 2, characterized in that at least one recess (8) completely interrupts the edge (7) in the region of the recess (8).

4. The socket body (1) according to any one of claims 1 to 3, characterized in that at least one of the recesses (8) extends into a front surface (10) of the spring clip (5) facing the socket opening (6) and / or into a wall surface (11) of the spring clip (5) facing the socket opening (6).

5. 5. The socket body (1) according to claim 4, characterized in that at least one of the recesses (8) extends from the edge (7) over the entire front surface (10) when viewed in a direction (Z) transverse to the central axis (M) or at least one of the recesses (8) extends from the edge (7) over a maximum half of the front surface (10) when viewed in a direction (Z) transverse to the central axis (M).

6. The socket body (1) according to any one of claims 1 to 5, characterized in that a third contact point (13) is provided by a surface (14) of the socket wall (2) on the opposite side of the central axis (M) to the recess (8) with the two contact points (9).

7. 7. The socket body (1) according to claim 6, characterized in that the third contact point (13) is located between the two contact points (9) such that, as viewed in the direction of the central axis (M), a line (L) extending through the third contact point (13) at a right angle to the central axis (M) passes through the center between the two contact points (9) provided by the recess (8).

8. 6. The socket body (1) according to any one of the preceding claims, characterized in that at least one further cut-out forms a further spring clip (5) which is constructed substantially identically to the spring clip.

9. The socket body (1) according to any one of claims 1 to 8, characterized in that the notch extends at an angle (α) to the central axis (M) in a cross section including the central axis (M).

10. 10. The socket body (1) according to claim 9, characterized in that the incision (4) extends over a first section (15) inclined at an angle (α) to the central axis and into a second section (16) parallel to the central axis.

11. Socket body (1) according to any one of claims 1 to 10, characterized in that the free end (17) of the spring clip is directed towards the socket opening or away from the socket opening.

12. The socket body (1) according to any one of claims 1 to 11, characterized in that at least one of the recesses (8) is located in the center of the spring clip (5) when viewed in the direction of the central axis (M).

13. The socket body (1) according to any one of claims 1 to 12, characterized in that the recess (8) extends over a circumferential angle (β) of up to 25°, up to 10° or up to 5° with respect to the circumferential direction of the socket space (3).

14. The socket body (1) according to any one of claims 1 to 13, characterized in that at least one of the recesses (8) is provided by embossing and / or at least one of the recesses (8) is provided by plastic processing and / or machining of the edge portion (7).

15. The socket body (1) according to any one of claims 1 to 14, characterized in that the socket space (3) or the socket opening (6) defines a geometrical envelope cylinder (H) having a circular cross section, and the recess (8) is located exclusively inside the envelope cylinder (H).

16. The socket body (1) according to any one of claims 1 to 15, characterized in that in a first step, the socket body (1) with the notch (4) and the spring clip (5) is produced, and in a second step, the recess (8) is produced by guiding a tool for producing the recess (8) through the socket opening (6) into the socket space (3) up to the edge (7).

17. A method for manufacturing a socket body (1) according to any one of claims 1 to 16, characterized in that in a first step, the socket body (1) with the notch (4) and the spring clip (5) is manufactured, and in a second step, the recess (8) is manufactured by guiding a tool for manufacturing the recess (8) through the socket opening (6) into the socket space (3) to the position of the recess.

Images