socket connector

Abstract

One aspect of the present disclosure is to provide a socket connector that enables a reduction in the number of components. A socket connector (11) is to be mounted in a cavity (12), and a plug connector (13) is inserted into the socket connector along a first axis (X1). The socket connector (11) is a one-piece product made of metal and is provided with a drum section (22) which is provided in a base end part in one direction along the first axis (X1) and can be crimped to a core wire (31a) of a wire (31), and a releasable contact piece (25) which is releasable in a direction that intersects the first axis (X1).crosses to press and contact a circumference of the plug connector fitting (13) which is inserted into the socket connector fitting (11), and a locking lance (26) for grasping an engaging section (15) of the cavity (12) and preventing the socket connector fitting from exiting the cavity (12) by extending along the first axis (X1) while spreading outwards in a direction which intersects or crosses the first axis (X1).

Description

[Technical field]

[0001] The present disclosure relates to a socket connector. [State of the art]

[0002] Conventionally, a receiving or socket connector is known, comprising a tube or drum section, a restorable or elastic contact piece, and a locking or locking lance (see, for example, patent literature 1). The drum section is configured to be connectable to a wire core by crimping. The restorable contact piece is restorable in a direction that intersects a first axis along the insertion direction of a receiving or plug connector, in order to press and contact the circumference of the inserted plug connector. The locking lance is configured to engage with an engaging or engagement section of a cavity by extending along the first axis while widening outwards in a certain direction.spreads out, intersecting or crossing the first axis. The bushing connector is prevented from exiting the cavity by the locking lance. [Bibliography][Patent Literature]

[0003] Patent literature 1: Japanese unexamined patent publication no. H10-40989 [Summary of the invention][Problem that the invention seeks to solve]

[0004] However, since the socket connector described above is formed by assembling a first component, which includes the drum section and the returnable contact, and a second component, which includes the locking lance, there is a problem: the number of components is large. This complicates the configuration and assembly of the socket connector and increases the man-hours required for assembly.

[0005] The present disclosure aims to provide a receiving or socket connection adapter which enables a reduction in the number of components. [Means to solve the problem]

[0006] The present disclosure relates to a receiving or socket connector fitting which is to be mounted in a cavity, wherein a receiving or plug connector fitting is inserted into the socket connector fitting along a first axis, wherein the socket connector fitting is a one-piece or integrally formed product made of a metal and is provided with a tube or drum section which is provided in a base end part in one direction along the first axis, wherein the drum section can be connected to a core wire of a wire by crimping, and a restorable or elastic contact piece which is restorable in a direction which intersects the first axis.a cross to press and contact a circumference of the inserted plug connector fitting, and a locking lance to grasp an engaging section of the cavity and prevent the socket connector fitting from exiting the cavity by extending along the first axis while spreading or widening outwards in a direction that intersects or crosses the first axis. [Effect of the invention]

[0007] According to the socket connector fitting of the present disclosure, the number of components can be reduced. [Brief description of the drawings] Fig. Figure 1 is a top view of a socket connector in one embodiment, Fig. Figure 2 is a perspective view of the socket connector in the embodiment, Fig. Figure 3 is a side view of the socket connector in the embodiment, and Fig. Figure 4 is a front view of the socket connector in the embodiment. [Embodiments of the invention][Description of embodiments of the present disclosure]

[0008] First, embodiments of the present disclosure are listed and described.

[0009] [1] The receiving or socket connector of the present disclosure is to be mounted in a cavity, wherein a receiving or plug connector is inserted into the socket connector along a first axis, wherein the socket connector is a one-piece or integrally formed product made of a metal and is provided with a tube or drum section which is provided in a base end part in a direction along the first direction, wherein the drum section can be connected to a core wire of a wire by crimping, and a restorable or elastic contact piece which is restorable in a direction which intersects the first axis.crossing to press and contact a circumference of the plug connector fitting which is inserted into the socket connector fitting, and a locking lance for grasping an engaging section of the cavity and preventing the socket connector fitting from exiting the cavity by extending along the first axis while spreading or widening outwards in a direction which intersects or crosses the first axis.

[0010] According to this configuration, since the bushing connector, which includes the tube or drum section, the restorable or elastic contact piece, and the locking or locking lance, is an integral or one-piece product, the number of components can be reduced compared to, for example, a bushing connector formed by assembling a component with a drum section and a restorable contact piece with a component equipped with a locking lance. This simplifies the configuration and reduces assembly time.

[0011] [2] In the above described [1], the locking lance can be arranged at least partially next to or side by side with the resetting contact piece in the direction along the first axis.

[0012] According to this configuration, since the locking lance is at least partially located next to the resetting contact in the direction along the first axis (in other words, at a position that overlaps the resetting contact in a circumferential direction of the socket connector), the socket connector can be made shorter, for example, compared to the case where the locking lance is not located next to the resetting contact.

[0013] [3] In the above described [2], the locking lance can be arranged completely next to the resetting contact piece in the direction along the first axis.

[0014] According to this configuration, since the locking lance is positioned completely next to the resetting contact piece in the direction along the first axis, the socket connector can be made even shorter.

[0015] [4] In the above described [3], the bushing connector can be provided with a pointed-end pipe section, which is provided on a pointed side of the bushing connector in the direction along the first axis, and a base-end pipe section, which is provided between the pointed-end pipe section and the drum section, the restoring contact piece can be provided to connect the pointed-end pipe section and the base-end pipe section, and the locking lance can extend to a rear end of the bushing connector in the direction along the first axis from a part which is not provided with the restoring contact piece in a circumferential direction of the pointed-end pipe section, while spreading or widening outwards in a direction which intersects or crosses the first axis.

[0016] According to this configuration, since the locking lance extends from the part not provided with the restorable contact piece in the circumferential direction of the tip-side tube section, the locking lance can be arranged completely next to the restorable contact piece in the direction along the first axis, while the bushing connection fitting is designed as an integral or one-piece product.

[0017] [5] In the above described [4], the tip-end pipe section and the base-end pipe section can be formed by annular bending of a metal plate material and include a connecting section where end parts of the metal plate material are connected together, and the restorable contact piece and the locking lance can be provided in the circumferential direction of the tip-end pipe section in parts where the connecting section is not arranged.

[0018] According to this configuration, since the tip-end and base-end pipe sections are formed by annular bending of the metal plate material and include the connecting section where the end parts of the metal plate material are joined, the bushing connector can be easily manufactured. Furthermore, since they are provided in the circumferential direction of the tip-end pipe section in the parts where the connecting section is not located, the retractable contact piece and the locking lance can be easily provided without being affected or influenced by the connecting section.

[0019] [6] In the above described [4] or [5], a plurality of the restorable contact pieces can be provided in the circumferential direction of the tip-side tube section, and the locking lance can be provided between the plurality of restorable contact pieces.

[0020] According to this configuration, since the majority of restorable contact pieces are provided in the circumferential direction of the tip-side tube section and the locking lance is provided between the majority of restorable contact pieces, the bushing connector can, for example, be held in a stable position or position in the cavity.

[0021] [7] In the above described [6], a plurality of locking lances can be provided in the circumferential direction of the pointed end of the pipe section and can be provided at uniform intervals or distances in the circumferential direction of the pointed end of the pipe section.

[0022] According to this configuration, since the majority of locking lances are provided in the circumferential direction of the tip-side pipe section and are provided at equal intervals or distances in the circumferential direction of the tip-side pipe section, the bushing connection fitting can, for example, be held in a stable position or position in the cavity.

[0023] [8] In the above described [7], the locking lances can be provided at intervals of 180° in the circumferential direction of the tip-side tube section, and a plurality of the restorable contact pieces between the locking lances can be provided in the circumferential direction of the tip-side tube section and can be provided at line-symmetrical positions relative to a straight line passing through the locking lances when viewed from the direction along the first axis.

[0024] According to this configuration, since the locking lances are provided at intervals of 180° around the circumference of the pointed end of the tube, the socket connector can be held in a stable position within the cavity. Furthermore, the majority of releasable contacts are provided between the locking lances around the circumference of the pointed end of the tube and are arranged at line-symmetrical positions relative to the straight line passing through the locking lances when viewed from the direction along the first axis. In this way, the releasable contacts can be satisfactorily connected to the plug connector., since the majority of the restorable contact pieces are arranged to sandwich the plug-connector fitting from the line-symmetrical positions, the restorable contact pieces can be satisfactorily connected to the plug-connector fitting.

[0025] [9] In the above described [4] to [8], at least one of the tip-side pipe section and the base-end pipe section can include a protrusion which can be brought into engagement with a circumferentially extending, engaging section of the cavity by projecting outwards in a direction which intersects or crosses the first axis.

[0026] Since at least one of the tip-end pipe section and the base-end pipe section includes the protrusion or projection which extends outwards in the direction that intersects or crosses the first axis, incorrect assembly or positioning is prevented, for example, when the bushing connector is mounted in the cavity. Furthermore, the bushing connector can be prevented from rotating relative to the cavity when it is mounted or positioned within the cavity. [Details of the embodiment of the present disclosure]

[0027] A specific example of a receiving or socket-connecting fitting 11 of the present disclosure is described below with reference to the drawings. For the sake of clarity, some components may be shown in an exaggerated or simplified manner in each drawing. Furthermore, the dimensional ratio of each part may differ in each figure. "Parallel," "orthogonal," and "actually circular" in this description do not mean strictly parallel, orthogonal, and actually circular, but also substantially parallel, orthogonal, and actually circular within a range in which functions and effects are achieved in this embodiment. It should be noted that the present invention is not limited to these representations or illustrations but is represented by claims, and it is intended that all modifications within the scope of the claims are included.The scope of claims and the meaning and framework of equivalents must be included. (Configuration of the socket connector 11)

[0028] As this is in Fig. As shown in Figure 1, the receiving socket connector 11 is mounted in a cavity 12, and a receiving plug connector 13 is inserted into the socket connector 11 along a first axis X1. The cavity 12 is made of a resin or plastic. The cavity 12 contains a receiving section 14 for receiving the socket connector 11. The receiving section 14 includes engaging sections 15, which project inwards. The plug connector 13 is cylindrical in shape.

[0029] As this is in Fig. As shown in Figures 1 to 3, the bushing connector 11 is an integral, or one-piece, product made of metal. The bushing connector 11 is made of a metal sheet material 21. The bushing connector 11 is provided with a tube or drum section 22, a tip-side or tip-side tube section 23, a base-end or base-end-side tube section 24, a plurality of restorable or elastic contact pieces 25, locking or locking lances 26, guiding projections or protrusions 27a, and anti-rotation projections or protrusions 27b, which serve as projections or protrusions. (Configuration of drum section 22)

[0030] The tube or drum section 22 is provided and configured in a base end part in one direction along the first axis X1 in the socket connection fitting 11 to be connectable to a core wire 31a of a wire 31 by crimping. The drum section 22 includes a curved section 22a, which is pre-formed into a curved shape, and extending sections 22b, which extend from both ends of the curved section 22a and are capable of sandwiching the core wire 31a together with the curved section 22a by being bent. It should be noted that Fig. Figures 1 to 4 show the extending sections 22b in a state before they are bent. (Configurations of the tip-side pipe section 23 and the base-end-side pipe section 24)

[0031] The pointed-end pipe section 23 is provided in a pointed portion in the direction along the first axis X1 in the bushing connection fitting 11. Furthermore, the base-end pipe section 24 is provided between the pointed-end pipe section 23 and the drum section 22. In this embodiment, the pointed-end pipe section 23 has an actual circular shape when viewed from the direction along the first axis X1. Furthermore, in this embodiment, the base-end pipe section 24 also has an actual circular shape when viewed from the direction along the first axis X1. The pointed-end pipe section 23 and the base-end pipe section 24 have the same diameter. The pointed-end pipe section 23 and the base-end pipe section 24 are, respectively,are formed by a ring-shaped bending of the metal plate material 21 and include a connecting or joining section 21a, where end parts of the metal plate material 21 are connected to each other. It should be noted that, as shown in . Fig. 1 and Fig. As shown in Figure 2, the connecting section 21a of this embodiment has a locking projection 21b and a locking recess or indentation 21c, and the end parts of the metal plate material 21 are prevented from separating from one another by the locking projection 21b being fitted into the locking recess 21c. A portion of the base-end pipe section 24 in a circumferential direction and the curved section 22a of the drum section 22 are connected by a coupling section 28. (Configuration of the restorable contact pieces 25)

[0032] The resilient or elastic contact piece 25 is designed to connect the tip-end pipe section 23 and the base-end pipe section 24. The resilient contact piece 25 is an elongated piece that extends to connect a circumferential portion of the tip-end pipe section 23 and a circumferential portion of the base-end pipe section 24. The resilient contact piece 25 is resilient or elastic in a direction that intersects the first axis X1 in order to press and contact the circumference of the inserted plug connector 13. In particular, the resilient contact piece 25 includes a first inclined section 25a, which extends obliquely radially inward in a direction from the tip-end pipe section 23 to the base-end pipe section 24, and a second inclined section 25b, which extends obliquely radially outward.The reboundable contact piece 25 extends outwards from the first inclined section 25a while being connected to the base-end pipe section 24. Furthermore, the reboundable contact piece 25 includes a contact section 25c to be pressed into contact with the plug-connector fitting 13 between the first and second inclined sections 25a, 25b. A plurality of the reboundable contact pieces 25 are provided in the circumferential direction of the tip-end pipe section 23 and the base-end pipe section 24. In this embodiment, six reboundable contact pieces 25 are provided in the circumferential direction of the tip-end pipe section 23 and the base-end pipe section 24. (Configuration of the locking lances 26)

[0033] As this is in Fig. As shown in Figure 3, the locking lance 26 extends from a portion that is not provided with the restorable contact pieces 25 in the circumferential direction of the tip-end tube section 23. The locking lance 26 extends to a rear end face in the direction along the first axis X1, which is a direction toward the base-end tube section 24, while it widens outward in a direction that intersects the first axis X1. The locking lance 26 is arranged completely adjacent to the restorable contact pieces 25 in the direction along the first axis X1. In other words, an arrangement area of ​​the locking lance 26 is located within an arrangement area of ​​the restorable contact pieces 25 in the direction along the first axis X1.The locking lance 26 is set to have a length longer than half the length of the restorable contact pieces 25 in the direction along the first axis X1.

[0034] As this is in Fig. As shown in Figure 1, the locking lance 26 prevents the bushing connector 11 from exiting backwards out of the cavity 12 by engaging or gripping the engaging sections 15 of the cavity 12. The locking lance 26 is provided between a plurality of the reboundable contact pieces 25 in the circumferential direction of the pointed-end pipe section 23.

[0035] Furthermore, as this is shown in Fig. As shown in Figure 4, a plurality of the locking lances 26 are provided in the circumferential direction of the pointed-end pipe section 23 and are arranged at uniform intervals or distances in the circumferential direction of the pointed-end pipe section 23. In this embodiment, the locking lances 26 are arranged at intervals of 180° in the circumferential direction of the pointed-end pipe section 23.

[0036] Furthermore, a plurality of the restorable contact pieces 25 are provided between the locking lances 26 in the circumferential direction of the pointed-end pipe section 23 and are arranged at line-symmetrical positions relative to a straight line Y1, which passes through the locking lances 26 when viewed from the direction along the first axis X1. In particular, in this embodiment, three restorable contact pieces 25 are provided at or at uniform intervals in each interval or distance between the locking lances 26 in the circumferential direction of the pointed-end pipe section 23.

[0037] Furthermore, the resetting contact pieces 25 and the locking lances 26 are provided in the circumferential direction of the pointed-end pipe section 23 in the portions where the connecting section 21a is not located. In other words, the resetting contact pieces 25 and the locking lances 26 are provided to avoid the circumferential direction of the pointed-end pipe section 23 where the connecting section 21a is located. In this embodiment, the connecting section 21a is arranged between the resetting contact pieces 25 in the circumferential direction of the pointed-end pipe section 23. (Configuration of the leading surveys 27a)

[0038] As this is in Fig. 1 and Fig. As shown in Figure 2, the leading projection 27a is provided in a circumferential part of the pointed end of the pipe section 23. The leading projection 27a extends outwards in a direction that intersects the first axis X1. The leading projection 27a extends by cutting and raising a portion of the pointed end of the pipe section 23.

[0039] As this is in Fig. 1 and Fig. As shown in Figure 4, a plurality of the leading projections 27a are provided in the circumferential direction of the pointed-end pipe section 23 and are arranged at equal intervals or distances in the circumferential direction of the pointed-end pipe section 23. In this embodiment, the leading projections or protrusions 27a are provided at intervals of 180° in the circumferential direction of the pointed-end pipe section 23.

[0040] As this is in Fig. As shown in Figure 4, the guiding projections 27a prevent the bushing connector 11 from being erroneously or incorrectly mounted or positioned in the cavity 12 by engaging or gripping circumferentially arranged, engaging sections 16 provided in the cavity 12 when the bushing connector 11 is mounted in the cavity 12. That is, the guiding projections 27a prevent the bushing connector 11 from being inserted at an incorrect angle circumferentially relative to the cavity 12 by guiding it into the circumferentially arranged, engaging sections 16 when the bushing connector 11 is inserted into the cavity 12. (Configuration of the elevations preventing rotation 27b)

[0041] As this is in Fig. 1 and Fig. As shown in Figure 2, the anti-rotation protrusion 27b is provided in a circumferential portion of the base-end pipe section 24. The anti-rotation protrusion 27b projects outwards in a direction that intersects or crosses the first axis X1. The anti-rotation protrusion 27b projects by cutting and lifting a portion of the base-end pipe section 24.

[0042] As this is in Fig. As shown in Figure 1, a plurality of the anti-rotation protrusions or projections 27b are provided in the circumferential direction of the base-end pipe section 24 and are arranged at uniform intervals or spacings in the circumferential direction of the base-end pipe section 24. In this embodiment, the anti-rotation protrusions or projections 27b are provided at intervals of 180° in the circumferential direction of the base-end pipe section 24.

[0043] The rotation-preventing elevations 27b prevent the bushing connector 11 from rotating or turning about the first axis X1 relative to the cavity 12 by means of the engagement of the circumferentially extending engaging sections 16, which are provided in the cavity 12 when the bushing connector 12 is mounted or arranged in the cavity 12.

[0044] Next, the functions of the socket connector 11, which is configured or constructed as described above, will be described.

[0045] The bushing connector 11 is installed in the cavity 12 by inserting it into the receiving section 14 of the cavity 12 with one pointed end along the first axis X1 at the front. The locking lances 26 are expanded radially outward from the pointed end of the tube section 23 at positions corresponding to the engaging sections 15 and are positioned in such a way as to engage the engaging sections 15. During insertion of the bushing connector 11, the locking lances are deformed radially inward from the pointed end of the tube section 23, allowing them to return to their original position. This prevents the bushing connector 11 from exiting the cavity 12.

[0046] When the plug connector 13 is inserted into the socket connector 11 along the first axis X1, the resilient contact pieces 25 are or become resiliently deformed radially outwards, and the contact sections 25c are pressed or forced into contact with the circumference of the plug connector 13. In this way, the plug connector 13 and the socket connector 11 are or become satisfactorily electrically connected.

[0047] The effects of the above embodiment are described below. (1) Since the socket connector 11, which is provided with the drum section 22, the restorable contacts 25 and the locking lances 26, is an integral or one-piece product, the number of components can be reduced, for example, compared to a socket connector formed by assembling a component provided with a drum section and restorable contacts and a component provided with locking lances. In this way, configuration or assembly can be simplified and man-hours for assembly can be reduced. (2) Since the locking lances 26 are arranged completely next to or side by side with the restorable contact pieces 25 in the direction along the first axis X1 (in other words, at positions which overlap the restorable contact pieces 25 in the circumferential direction of the socket connector 11), the socket connector 11 can be made shorter compared, for example, with the case where the locking lances 26 are not arranged next to the restorable contact pieces 25. (3) The locking lances 26 extend from the parts not provided with the restorable contact pieces 25 in the circumferential direction of the tip-side tube section 23. In this way, the locking lances 26 can be arranged completely next to or side by side with the restorable contact pieces 25 in the direction along the first axis X1, while the bushing connection fitting 11 is designed as a one-piece product. (4) Since the tip-end pipe section 23 and the base-end pipe section 24 are formed by annular bending of the metal plate material 21 and include the connecting section 21a, where the end parts of the metal plate material 21 are connected to each other, the bushing connector 11 can be easily manufactured. Furthermore, since they are provided in the circumferential direction of the tip-end pipe section 23 in the parts where the connecting section 21a is not located, the restorable contact pieces 25 and the locking lances 26 can be easily provided without being affected or influenced by the connecting section 21a. (5) Since the majority of the restorable contact pieces 25 are provided in the circumferential direction of the pointed end of the tube section 23, and the locking lances 26 are provided between the majority of restorable contact pieces 25, the plug connector 13 can be satisfactorily connected, for example, by the majority of restorable contact pieces 25 in the circumferential direction. Furthermore, the socket connector 11 can, for example, be held in a stable position in the cavity 12. (6) Since the majority of locking lances 26 are provided in the circumferential direction of the pointed end of the pipe section 23 and are provided at equal intervals or distances in the circumferential direction of the pointed end of the pipe section 23, the bushing connection fitting 11 can, for example, be held in a stable position in the cavity 12. (7) Since the locking lances 26 are provided at intervals of 180° in the circumferential direction of the pointed tube section 23, the socket connector 11 can be held in a stable position in the cavity 12. Furthermore, the majority of resetting contact pieces 25 are provided between the locking lances 26 in the circumferential direction of the pointed tube section 23 and are arranged at line-symmetrical positions relative to the straight line Y1, which passes through the locking lances 26 when viewed from the direction along the first axis X1. In this way, the resetting contact pieces 25 can be satisfactorily connected to the plug connector 13., since the majority of the restorable contact pieces 25 are arranged to sandwich the plug-connector fitting 13 from the line-symmetrical positions, the restorable contact pieces 25 can be satisfactorily connected to the plug-connector fitting 13. (8) Since the tip-end pipe section 23 includes the leading projections 27a, which extend outwards in the direction that intersects or crosses the first axis X1, incorrect assembly can be prevented, for example, when the bushing connector 11 is installed in the cavity 12. Furthermore, since the base-end pipe section 24 includes the anti-rotation projections 27b, which extend outwards in the direction that intersects or crosses the first axis X1, the bushing connector 11 can be prevented from rotating or turning relative to the cavity 12, for example, when the bushing connector 11 is installed in the cavity 12.

[0048] The embodiment can be modified and implemented as follows. This embodiment and the following modifications or variations can be implemented in combination without being technically contradictory. • Although the locking lances 26 are arranged completely adjacent to the restorable contact pieces 25 in the direction along the first axis X1 in the embodiment described above, there is no restriction or limitation to this arrangement. For example, the locking lances 26 can be arranged partially adjacent to the restorable contact pieces 25 in the direction along the first axis X1. In other words, the locking lances 26 can be designed to be longer than the restorable contact pieces 25 in the direction along the first axis X1. That is, the locking lances 26 can be arranged partially in positions that overlap the restorable contact pieces 25 in the circumferential direction of the socket connector 11. Furthermore, for example, the locking lances 26 can be arranged not adjacent to, or side by side with, the restorable contact pieces 25 in the direction along the first axis X1.

[0049] • Although the socket connector 11 is provided with the tip-end tube section 23 and the base-end tube section 24 in the above embodiment, there is no restriction thereon, and the tip-end tube section 23 and the base-end tube section 24 may, for example, be configured or constructed in such a way as not to have an annular shape. That is, the tip-end tube section 23 and the base-end tube section 24 need not or may not include the connecting section 21a. Furthermore, although the restorable contact pieces 25 are provided to connect the tip-end tube section 23 and the base-end tube section 24, the restorable contact pieces 25 may be provided in a different shape if they are restorable or elastic in the direction that intersects the first axis X1 in order to press the circumference of the inserted plug connector 13.to press and make contact. Furthermore, although the locking lances 26 extend from the tip-side tube section, the locking lances 26 may be provided in a different form if they extend along the first axis X1 while widening or spreading outwards in the direction that intersects or crosses the first axis X1.

[0050] • Although the tip-side pipe section 23 and the base-end-side pipe section 24 are formed by annular bending of the metal plate material 21 in the above embodiment, there is no restriction on this, and, for example, the bushing connection fitting 11 can be made from a metal tube material.

[0051] • Although the resetting contact pieces 25 and the locking lances 26 are provided in the circumferential direction of the tip-side tube section 23 in the above embodiment in the parts where the connecting section 21a is not arranged, there is no restriction on this and the resetting contact piece 25 or the locking lance 26 may be provided in the part where the connecting section 21a is arranged.

[0052] • Although the majority of restorable contact pieces 25 are provided in the circumferential direction of the pointed-end tube section 23 in the above embodiment, there is no restriction on this, and, for example, only one restorable contact piece 25 may be provided in the circumferential direction of the pointed-end tube section 23. It should be noted that in this case, a section facing the restorable contact piece, which is difficult to deflect, may, for example, be provided at a position facing the single restorable contact piece, and the inserted plug-connector fitting 13 may be sandwiched between the restorable contact piece and the section facing or directed towards the restorable contact piece.Furthermore, although six restorable contact pieces 25 are provided in the above embodiment, there is no limitation thereon and the number of restorable contact pieces 25 can be, for example, two, three, eight or any other number.

[0053] • Although the majority of locking lances 26 are provided in the circumferential direction of the pointed-end pipe section 23 in the above embodiment, there is no limitation thereon, and, for example, only one locking lance 26 may be provided in the circumferential direction of the pointed-end pipe section 23. Furthermore, although two locking lances 26 are provided in the above embodiment, there is no limitation thereon, and the number of locking lances 26 may be, for example, three, four, or any other number.

[0054] • Although the locking lances 26 are provided at equal intervals or distances in the circumferential direction of the pointed-end pipe section 23 in the above embodiment, there is no restriction on this and the locking lances 26 may, for example, be provided at unequal distances in the circumferential direction of the pointed-end pipe section 23.

[0055] • Although the restorable contact pieces 25 are arranged in the above embodiment at line-symmetrical positions relative to the straight line Y1 which passes through the locking lances 26 when viewed from the direction along the first axis X1, there is no restriction on this and the restorable contact pieces 25 may be arranged at positions different from the line-symmetrical positions relative to the straight line Y1.

[0056] • Although the tip-end pipe section 23 includes the leading projections 27a, which project outwards in the direction that intersects or crosses the first axis X1, in the above embodiment, there is no restriction on this, and the leading projections 27a can be omitted. Furthermore, although the base-end pipe section 24 includes the anti-rotation projections 27b, which project outwards in the direction that intersects or crosses the first axis X1, in the above embodiment, there is no restriction on this, and the anti-rotation projections 27b can be omitted. Furthermore, only one of the tip-end pipe section 23 and the base-end pipe section 24 can include at least one leading projection 27a or one anti-rotation projection 27b.For example, the tip-side pipe section 23 can include a protrusion which acts as the leading protrusion 27a and also as the rotation-preventing protrusion 27b.

[0057] • Although the locking lance 26 is set to have a length longer than half the length of the resetting contact piece 25 in the direction along the first axis X1 in the above embodiment, there is no restriction on this and, for example, the length of the locking lance 26 may be equal to or shorter than half the length of the resetting contact piece 25.

[0058] • Although the drum section 22 is configured to be connectable to the core wire 31a of the wire 31 in the above embodiment by crimping, there is no restriction thereon and, for example, the drum section 22 may include a coating crimping section which can be fixed or secured to an insulating coating of the wire 31 by crimping.

[0059] • Although the tip-end pipe section 23 and the base-end pipe section 24 have an actual circular shape when viewed from the direction along the first axis X1 in the above embodiment, there is no restriction on this and, for example, the pipe sections 23, 24 may have a rectangular or right-angled shape when viewed from the direction along the first axis X1. [List of reference symbols] 11 receiving or socket connection piece 12 Cavity 13 to be recorded or plug connector fitting 14 receiving or receiving section 15 intervening or intervention section 16 circumferentially extending, intervening section 21 Metal sheet material 21a connecting or connecting section 21b locking survey 21c locking recess or depression 22 Pipe or drum section 22a curved or bent section Section 22b extending 23 tip-side pipe section or tip-side pipe section 24 base end pipe section or base end pipe section 25 resilient or elastic contact pieces 25a first inclined section 25b second inclined section 25c Contact section 26 locking or locking lance 27a leading survey (survey or advantage) 27b a rotation-preventing elevation (elevation or ledge) 28 coupling or coupling section 31 wire 31a Core wire X1 first axis Y1 straight line QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] JP 10-40989

[0003]

Claims

[1] A socket connector fitting for installation in a cavity, wherein a plug connector fitting is inserted into the socket connector fitting along a first axis, wherein the socket connector fitting is a one-piece product made of metal, comprising: a drum section which is provided in a base end part in one direction along the first axis, wherein the drum section can be connected to a core wire of a wire by crimping; a restorable contact piece which is restorable in a direction that intersects or crosses the first axis in order to press and contact a circumference of the plug connector fitting which is inserted into the socket connector fitting; and a locking lance for grasping an engaging section of the cavity and preventing the bushing connector from exiting the cavity by extending along the first axis while spreading outwards in a direction that intersects or crosses the first axis. [2] Socket connector according to claim 1, wherein the locking lance is arranged at least partially next to the resetting contact piece in the direction along the first axis. [3] Socket connector according to claim 2, wherein the locking lance is arranged completely next to the resetting contact piece in the direction along the first axis. [4] Bushing connector according to claim 3, comprising a tip-side tube section which is provided on a tip side of the bushing connector in the direction along the first axis, and a base-end-side tube section which is provided between the tip-side tube section and the drum section, wherein: the restorable contact piece is provided to connect the tip-side pipe section and the base-end-side pipe section, and the locking lance extends to a rear end face of the socket connector in the direction along the first axis of a part which is not provided with the restoring contact piece in a circumferential direction of the tip-side tube section, while spreading or widening outwards in a direction which intersects or crosses the first axis. [5] Beechwood connector according to claim 4, wherein: the tip-end pipe section and the base-end pipe section are formed by annular bending of a metal sheet material, and include a connecting section where end parts of the metal sheet material are joined together, and The restorable contact piece and the locking lance are provided in the circumferential direction of the tip-side pipe section in parts where the connecting section is not arranged. [6] Socket connector according to claim 4 or 5, wherein: the restorable contact piece of a plurality of restorable contact pieces which are provided in the circumferential direction of the tip-side pipe section, and the locking lance is provided between the majority of restorable contact pieces. [7] Bushing connector according to claim 6, wherein the locking lance is one of a plurality of locking lances which are provided in the circumferential direction of the tip-side tube section, and the plurality of locking lances are provided at uniform intervals in the circumferential direction of the tip-side tube section. [8] Socket connector according to claim 7, wherein: the locking lances are provided at intervals of 180° in the circumferential direction of the tip-side pipe section, and the restorable contact piece is one of the majority of restorable contact pieces which are provided between the locking lances in the circumferential direction of the tip-side tube section and are arranged at line-symmetrical positions relative to a straight line which passes through the locking lances when viewed from the direction along the first axis. [9] Bushing connector according to one of claims 4 to 8, wherein at least one of the tip-side pipe section and the base-end pipe section includes a protrusion which can be brought into engagement with a circumferentially extending, engaging section of the cavity by projecting outwards in a direction which intersects or crosses the first axis.

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