Terminal structure and wiring accessory

Abstract

To provide a terminal structure or the like capable of easily inserting an electric wiring into an insertion hole even if the electric wire is soft.SOLUTION: A terminal structure 3 is housed into a housing 5 so that an electric wire 90 inserted from an insertion hole 91 can be electrically connected to a terminal 40, and the terminal structure 3 comprises: a locking spring 50 that is elastically contacted to the electric wire 90 to be inserted; and a pressing force member 60. The pressing force member 60 is supported by a concave part 76 formed in the housing 5, and rotates by using the concave part 76 as a support point. The locking spring 50 is elastically deformed by pressing the locking spring 50 to a rotational direction A by the pressing force member 60 in the case of viewing the insertion hole 91 and the locking spring 50 so as to be opposite to an open surface of the insertion hole 91, and an area of a region of the locking spring 50 overlapped with the insertion hole 91 is reduced. Also, the pressing force member 60 includes a convex part 63 for pressing the locking spring 50. Then, the convex part 63 includes: a first pressing convex part 63a for pressing the locking spring 50; and a second pressing convex part 63b for pressing the locking spring 50.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present disclosure relates to a terminal structure and a wiring device. [Background technology]

[0002] Conventional Patent Document 1 discloses a quick-connect terminal for a socket for electrically connecting an electric wire inserted through an insertion hole formed in a housing to a socket blade receiver.

[0003] The quick-connect terminal of the outlet has a connecting part that elastically contacts and electrically connects with the electric wire, a retaining piece that prevents the electric wire from falling out, and a locking release member that releases the locking action of the retaining piece on the electric wire. When the release button of the locking release member of the quick-connect terminal of the outlet is pressed, the sliding part of the locking release member slides and moves into the housing, so that the release piece releases the locking action of the retaining piece on the electric wire, allowing the electric wire to be pulled out. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2018-92846 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, when inserting a soft electric wire into the insertion hole of a conventional quick-connect terminal of a socket, the electric wire may bend and may not be inserted sufficiently into the insertion hole. For this reason, the quick-connect terminal of a conventional socket has an issue with the ease of inserting the electric wire into the insertion hole.

[0006] In view of the above, an object of the present disclosure is to provide a terminal structure etc. that allows even a soft electric wire to be easily inserted into an insertion hole. [Means for solving the problem]

[0007] A terminal structure according to one aspect of the present disclosure is a terminal structure accommodated within a housing so that an electric wire inserted through an insertion hole formed in the housing can be electrically connected to the terminal, the terminal structure comprising: an elastic member that elastically contacts the inserted electric wire; and a pressing member, the pressing member is supported in a recess formed in the housing and rotates around the recess as a fulcrum, and when the insertion hole and the elastic member are viewed so as to face an opening surface of the insertion hole, the pressing member presses the elastic member in the rotational direction, thereby elastically deforming the elastic member, thereby reducing the area of ​​the region of the elastic member that overlaps with the insertion hole, the pressing member has a convex portion that presses the elastic member, and the convex portion has a first pressing convex portion that presses the elastic member and a second pressing convex portion that presses the elastic member.

[0008] A wiring device according to an aspect of the present disclosure includes a terminal structure and a housing. Effect of the Invention

[0009] According to the terminal structure etc. of the present disclosure, even a soft electric wire can be easily inserted into the insertion hole. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a perspective view showing an external appearance of a wiring accessory according to an embodiment. [Diagram 2] FIG. 2 is an exploded perspective view showing the wiring device according to the embodiment. [Figure 3A] FIG. 3A shows the locking pieces in the closed position. [Figure 3B] FIG. 3B shows the locking pieces in the open position. [Figure 4] 4 is a cross-sectional view showing the wiring device taken along line IV-IV in FIG. [Diagram 5] FIG. 5 is a cross-sectional view showing the wiring device in a state in which the pressing member has rotated and the first pressing protrusion has started to press against the lock piece. [Figure 6]FIG. 6 is a cross-sectional view showing the wiring device in a state in which the pressing member has rotated and the second pressing protrusion has started to press against the pressing piece. [Figure 7] FIG. 7 is a cross-sectional view showing the wiring device when the first pressing protrusion presses the locking piece and the second pressing protrusion presses the pressing piece to open the insertion hole. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The embodiments described below are all comprehensive or specific examples. The numerical values, shapes, components, arrangement positions and connection forms of the components, etc., shown in the following embodiments are merely examples and are not intended to limit the present disclosure. Furthermore, among the components in the following embodiments, components that are not described in the independent claims are described as optional components.

[0012] In addition, each figure is a schematic diagram and is not necessarily illustrated precisely. Therefore, for example, the scales in each figure do not necessarily match. In addition, in each figure, substantially the same configurations are given the same reference numerals, and duplicated explanations are omitted or simplified.

[0013] In the following embodiments, expressions such as rectangular parallelepiped shape and X-axis direction are used. For example, rectangular parallelepiped shape does not only mean a completely rectangular parallelepiped shape in the X-axis direction, but also means a substantially rectangular parallelepiped shape in the X-axis direction, that is, including an error of, for example, about several percent. Furthermore, rectangular parallelepiped shape and X-axis direction mean a rectangular parallelepiped shape and X-axis direction within a range in which the effects of the present disclosure can be achieved. The same applies to other expressions using "shape" and "direction."

[0014] In the following embodiments, the overlapping direction of the cover and the housing is defined as the Z-axis direction, the arrangement direction of the pair of pressing members is defined as the Y-axis direction, and the direction perpendicular to the Z-axis direction and the Y-axis direction is defined as the X-axis direction. In addition, in the X-axis direction, the insertion hole side with respect to the second wall is defined as the positive side, in the Y-axis direction, the left side of the paper surface is defined as the positive side, and in the Z-axis direction, the cover side with respect to the housing is defined as the positive side.

[0015] Hereinafter, the embodiment will be specifically described with reference to the drawings.

[0016] (Embodiment) <Configuration> First, a wiring device 1 including a terminal structure 3 will be described with reference to Figs. 1 to 7.

[0017] FIG. 1 is a perspective view showing an appearance of a wiring device 1 according to an embodiment. FIG. 2 is an exploded perspective view showing the wiring device 1 according to an embodiment. FIG. 3A is a view showing the locking piece 51 in a closed state. FIG. 3B is a view showing the locking piece 51 in an open state. FIG. 4 is a cross-sectional view showing the wiring device 1 taken along line IV-IV in FIG. 1. FIG. 4 shows the wiring device 1 in a state in which the pressing member 60 is not pressing the locking spring 50 and the insertion hole 91 is in a closed state. FIG. 5 is a cross-sectional view showing the wiring device 1 in a state in which the pressing member 60 is rotated and the first pressing protrusion 63a starts pressing against the locking piece 51. FIG. 6 is a cross-sectional view showing the wiring device 1 in a state in which the pressing member 60 is rotated and the second pressing protrusion 63b starts pressing against the pressing piece 52. Fig. 7 is a cross-sectional view showing the wiring device 1 when the first pressing protrusion 63a presses the locking piece 51 and the second pressing protrusion 63b presses the pressing piece 52 to open the insertion hole 91. In Figs. 5 to 7, the locking spring 50 in the open state shown in Fig. 4 is shown by a two-dot chain line. Figs. 5 to 7 also show a cross-section of the wiring device 1 taken along line AA in Fig. 1.

[0018] As shown in Fig. 1 and Fig. 2, the wiring device 1 is a connection device that supplies and cuts off power to equipment systems, such as lighting devices and air blowers, installed in a facility. The wiring device 1 is embedded in a structure, such as a ceiling, a wall, or a floor. The wiring device 1 is, for example, an outlet or a switch. The wiring device 1 is formed in a vertically long rectangular parallelepiped shape.

[0019] In the wiring device 1, when an operator connects an electric wire 90 to the wiring device 1, the operator can insert the electric wire 90 into the insertion hole 91 of the wiring device 1 by operating a pressing member 60 having a handle portion 62 provided on the wiring device 1. When the operator finishes operating the pressing member 60, the electric wire 90 becomes electrically connected to the wiring device 1.

[0020] The wiring device 1 will be described in more detail below.

[0021] The wiring device 1 includes a housing 5, a cover 10, and a terminal structure 3.

[0022] The housing 5 is a case in which an accommodating chamber S for accommodating the terminal structure 3 is formed, and a part of the housing 5 is embedded in a structure. The housing 5 is a housing for a socket or a housing for a switch.

[0023] The housing 5 is cubic and has openings on the positive X-axis direction side and the positive Z-axis direction side. Specifically, the housing 5 has a first wall 71 on the negative Z-axis direction side, a pair of side walls 72 provided on both sides of the first wall 71, a second wall 74 on the negative X-axis direction side connected to the first wall 71 and the pair of side walls 72, and an intermediate wall 75 provided between the pair of side walls 72 and connected to the first wall 71 and the second wall 74.

[0024] An insertion hole 91 for inserting and withdrawing an electric wire 90 is formed in the first wall 71 of the housing 5. The electric wire 90 is inserted into the insertion hole 91 for electrically connecting to the terminal 40. Since the insertion hole 91 communicates with the accommodation chamber S that accommodates the terminal structure 3, the electric wire 90 inserted into the insertion hole 91 is electrically connected to the terminal structure 3. In the present embodiment, a plurality of insertion holes 91 are formed in the housing 5, but only one insertion hole 91 may be formed in the housing 5.

[0025] The housing 5 is formed with an accommodating chamber S for accommodating the terminal structure 3. In this embodiment, since a plurality of terminal structures 3 are accommodated in the housing 5, a plurality of accommodating chambers S separated by intermediate walls 75 are formed. That is, the plurality of terminal structures 3 correspond one-to-one to the plurality of accommodating chambers S. Note that a plurality of terminal structures 3 may be accommodated in one accommodating chamber S. In this case, the intermediate wall 75 does not need to be formed in the housing 5.

[0026] A structure is formed in the accommodation chamber S of the housing 5. The structure supports the terminal structure 3 housed in the housing 5. The structure includes a recess 76 capable of rotatably supporting the pressing member 60 of the terminal structure 3. Specifically, a pair of recesses 76 is formed in each of the plurality of accommodation chambers S. Each pair of recesses 76 rotatably supports one pressing member 60. Since the pressing member 60 slides in the recess 76, the inner surfaces of the pair of recesses 76 are arc surfaces formed in an arc shape.

[0027] The cover 10 has a generally flat rectangular shape and is disposed on the front surface (the surface on the positive Z-axis direction side) of the wiring device 1. The cover 10 is fixed to the housing 5 so as to cover an opening formed in the housing 5 on the positive Z-axis direction side.

[0028] The terminal structure 3 is accommodated in the housing 5 so that an electric wire 90 inserted through an insertion hole 91 formed in the housing 5 can be electrically connected to a terminal 40 of the terminal structure 3. The terminal structure 3 is prevented from coming off the housing 5 by the housing 5 and a cover 10 covering an opening of the housing 5 on the positive side in the Z-axis direction. When accommodated in the housing 5, a part of the terminal structure 3 is exposed from the opening of the housing 5 on the positive side in the X-axis direction.

[0029] Specifically, the terminal structure 3 includes a terminal 40, a locking spring 50, and a pressing member 60.

[0030] Terminal 40 is a quick-connect terminal capable of accommodating locking spring 50 therein. Terminal 40 has a terminal plate 41 that is accommodated in accommodating chamber S of terminal 40 and electrically connected to electric wire 90, an opposing plate 42 that is disposed on the opposite side of terminal plate 41 with locking spring 50 interposed therebetween, and a connecting portion 43 that connects terminal plate 41 and opposing plate 42. When electric wire 90 is inserted into insertion hole 91 of housing 5 in terminal 40, electric wire 90 pressed against locking spring 50 and terminal plate 41 are electrically connected.

[0031] In this embodiment, the terminal 40 has a pair of terminal plates 41. A slit 44 is formed between the pair of terminal plates 41, through which a part of the locking spring 50 housed in the terminal 40 can be exposed. An intermediate wall 75 of the housing 5 is inserted into the slit 44.

[0032] The locking spring 50 makes elastic contact with the electric wire 90 inserted through the insertion hole 91, thereby electrically connecting the electric wire 90 and the terminal 40. The locking spring 50 is disposed so as to face the insertion hole 91. In other words, as shown in Figures 3A and 3B, when viewed along the Z-axis direction, a locking piece 51, which is a part of the locking spring 50, is exposed. The locking spring 50 is an example of an elastic member.

[0033] As shown in FIG. 4, the locking spring 50 has an S-shaped pressing piece 52 when viewed along the Y-axis direction, a U-shaped or V-shaped locking piece 51 arranged at a position facing the opening of the insertion hole 91, and a strip-shaped central piece 53 that connects the locking piece 51 and the pressing piece 52 and is held by the opposing plate 42 of the terminal 40. The locking piece 51 is arranged closer to the opening surface of the insertion hole 91 than the pressing piece 52, and closer to the recess 76 than the pressing piece 52. The locking piece 51 is exposed from the insertion hole 91. The locking piece 51 and the pressing piece 52 are arranged to face the terminal plate 41 of the terminal 40. When the pressure by the pressing member 60 is released, the locking piece 51 and the pressing piece 52 can indirectly press the terminal plate 41 of the terminal 40 through the electric wire 90. The locking piece 51 is an example of a first elastic deformation portion, and the pressing piece 52 is an example of a second elastic deformation portion.

[0034] The pressing member 60 is a lever housed in the housing 5 and rotatable in a predetermined direction. For example, as shown in Figs. 4 to 7, when the pressing member 60 rotates in the rotation direction A of the arrow, the pressing member 60 presses the locking spring 50, and the pressing member 60 strengthens the pressing force on the locking spring 50, and the pressing member 60 can elastically deform the locking spring 50. Specifically, the elastic deformation of the locking spring 50 occurs when the locking piece 51 of the locking spring 50 is pressed in the rotation direction A by the pressing member 60, and after the locking piece 51 is elastically deformed, the pressing piece 52 starts to elastically deform. 4, the distance between the locking piece 51 and the first pressing protrusion 63a is shorter than the distance between the pressing piece 52 and the second pressing protrusion 63b, and the first pressing protrusion 63a is disposed closer to the rotation axis C than the second pressing protrusion 63b, so that the pressing piece 52 elastically deforms after the locking piece 51 elastically deforms. The rotation axis C is the axis that serves as the rotation center of the pressing member 60. Furthermore, when the pressing member 60 rotates in the rotation direction B of the arrow, the pressing force of the pressing member 60 on the locking spring 50 weakens, and then the elastic deformation of the locking spring 50 is released.

[0035] The pressing member 60 is supported by a recess 76 formed in the housing 5, and rotates about a rotation axis C with the recess 76 as a fulcrum. The pressing member 60 is a bifurcated structure that is symmetrical with respect to the XZ plane.

[0036] Specifically, the pressing member 60 has a pair of main body portions 61 and a handle portion 62 capable of pressing the pressing member 60 in the rotation direction A.

[0037] The pair of main bodies 61 are symmetrical with respect to the XZ plane and are arranged in a bifurcated shape in the pressing member 60. Each of the pair of main bodies 61 has a plate portion 60a and a protrusion 63 that presses the locking piece 51 and the pressing piece 52.

[0038] The plate portion 60a is triangular. One corner of the plate portion 60a is connected to the handle portion 62. A pivot support portion 61a is formed at another corner of the plate portion 60a, and is rotatable in a recess 76 formed in the housing 5. The pivot support portion 61a is rotatably supported in the recess 76 formed in the housing 5, and rotates around the recess 76 as a fulcrum. The side surface of the pivot support portion 61a is an arc-shaped curved surface. Therefore, the pivot support portion 61a can slide on the arc surface of the recess 76 in response to the rotation of the pressing member 60. In addition, since the pressing member 60 is provided with a pair of pivot support portions 61a, the pair of pivot support portions 61a can slide on the arc surfaces of the pair of recesses 76 so as to correspond one-to-one with the pair of recesses 76.

[0039] The plate portion 60a is formed with a protrusion 63. Specifically, the protrusions 63 formed on each of the pair of plate portions 60a are formed so as to face each other.

[0040] The protrusion 63 is disposed so as to be closer to the pivot support 61a than the handle portion 62. The protrusion 63 has a first pressing protrusion 63a which presses the lock piece 51 when the pressing member 60 is pressed in the rotation direction A, and a second pressing protrusion 63b which presses the pressing piece 52 when the pressing member 60 is pressed in the rotation direction A.

[0041] The first pressing protrusion 63a is a triangular protrusion, and the second pressing protrusion 63b is an arc-shaped protrusion. The first pressing protrusion 63a is arranged so as to be located closer to the recess 76 than the second pressing protrusion 63b. The first pressing protrusion 63a is arranged so as to be located closer to the opening surface of the insertion hole 91 than the second pressing protrusion 63b. The first pressing protrusion 63a is arranged between the locking piece 51 and the terminal board 41, and when the pressing member 60 rotates, it presses the locking piece 51 to deform the locking piece 51.

[0042] When pressing member 60 is not rotated, second pressing protrusion 63b is disposed between handle portion 62 and terminal board 41. When pressing member 60 rotates, second pressing protrusion 63b is inserted into cutout portion 41a formed in terminal board 41, and second pressing protrusion 63b is disposed between pressing piece 52 and terminal board 41.

[0043] In addition, since the pressing member 60 has a pair of main body portions 61, it can be said that it has a pair of first pressing protrusions 63a, a pair of second pressing protrusions 63b, and a pair of pivotal portions 61a. Therefore, it can be said that the pair of first pressing protrusions 63a, the pair of second pressing protrusions 63b, and one of the pair of pivotal portions 61a, the one of the first pressing protrusions 63a, the one of the second pressing protrusions 63b, and one of the pivotal portions 61a, and the other of the first pressing protrusion 63a, the other of the second pressing protrusion 63b, and the other of the pivotal portion 61a, are arranged to sandwich the locking spring 50 from both sides of the locking spring 50. As a result, the pressing member 60 can press both sides in the Y-axis direction of the locking spring 50, specifically, the pair of first pressing protrusions 63a can press both sides in the Y-axis direction of the locking piece 51, and the pair of second pressing protrusions 63b can press both sides in the Y-axis direction of the pressing piece 52. Therefore, the pressing member 60 can elastically deform the locking spring 50 stably.

[0044] Due to this configuration, when the pressing member 60 rotates in the rotation direction A of the arrow, as shown in Figs. 4 and 5, first, the pair of first pressing protrusions 63a press the locking piece 51. As a result, the locking piece 51 is pressed in the rotation direction A by the pair of first pressing protrusions 63a, and the locking piece 51 is elastically deformed so as to fall (approach) toward the pressing piece 52. When the locking piece 51 is elastically deformed, the pair of second pressing protrusions 63b are inserted into the pair of cutouts 41a formed in the terminal board 41, come into contact with the pressing piece 52, and start pressing the pressing piece 52. As a result, as shown in Fig. 6, the pressing piece 52 is pressed in the rotation direction A by the pair of second pressing protrusions 63b, and the pressing piece 52 is elastically deformed so as to fall toward the rotation direction A side. That is, the locking piece 51 is elastically deformed by the pair of first pressing protrusions 63a so as to fall toward the rotation direction A, and the pressing piece 52 is elastically deformed by the pair of second pressing protrusions 63b so as to fall toward the rotation direction A. When the locking spring 50 is elastically deformed, as shown in FIG. 3B and FIG. 7, when the insertion hole 91 and the locking spring 50 are viewed so as to face the opening surface of the insertion hole 91, the pressing member 60 presses the locking spring 50 in the rotation direction A, thereby elastically deforming the locking spring 50, thereby reducing the area of ​​the area of ​​the locking spring 50 that overlaps with the insertion hole 91. Then, the locking piece 51 and the pressing piece 52 are separated from the terminal plate 41 of the terminal 40, resulting in an open state in which a gap into which the electric wire 90 can be inserted is formed. As a result, the electric wire 90 can be inserted from the insertion hole 91 to place the electric wire 90 between the locking piece 51 and the pressing piece 52 and the terminal plate 41. In other words, the locking spring 50 can be displaced, by elastic deformation, to a state in which the electric wire 90 can be inserted so that the electric wire 90 can be electrically connected to the terminal 40 .

[0045] In addition, when the pressing member 60 rotates in the rotation direction B, the pair of second pressing protrusions 63b move in the rotation direction B and separate from the pressing piece 52, and then the pair of first pressing protrusions 63a move in the rotation direction B and separate from the locking piece 51, and the pair of second pressing protrusions 63b come out of the pair of notches 41a formed in the terminal plate 41. As a result, the elastic deformation of the locking spring 50 is released, and the locking spring 50 returns to its original state. When the locking spring 50 returns to its original state, as shown in Figs. 3A and 4, when the insertion hole 91 and the locking spring 50 are viewed so as to face the opening surface of the insertion hole 91, the area of ​​the area of ​​the locking spring 50 overlapping with the insertion hole 91 is increased. In other words, a closed state is reached in which the gap between the locking piece 51 and the pressing piece 52 and the terminal plate 41 is closed. As a result, when the electric wire 90 is inserted into the insertion hole 91, the electric wire 90 is sandwiched between the terminal 40 and the locking spring 50, and the electric wire 90 is fixed to the terminal structure 3 while being electrically connected to the terminal 40.

[0046] In this embodiment, one terminal structure 3 corresponds to one insertion hole 91, but this is not limited to this. For example, multiple terminal structures 3 may correspond to one insertion hole 91, and one locking spring 50 may correspond to multiple insertion holes 91. Also, multiple pressing members 60 may elastically deform one locking spring 50.

[0047] <Operation> Next, a case where the electric wire 90 is electrically connected to the terminal structure 3 in this embodiment will be described.

[0048] First, the locking piece 51 and the pressing piece 52 are in a closed state, closing the gap between the terminal plate 41 and the locking piece 51. Then, the operator rotates the handle portion 62 of the pressing member 60 in the rotation direction A. As a result, as shown in Figs. 4 to 7, the locking piece 51 is elastically deformed by the pair of first pressing protrusions 63a so as to fall in the rotation direction A, and the pressing piece 52 is elastically deformed by the pair of second pressing protrusions 63b so as to fall in the rotation direction A. Then, the locking piece 51 and the pressing piece 52 are separated from the terminal plate 41 of the terminal 40, resulting in an open state in which a gap into which the electric wire 90 can be inserted is formed.

[0049] Next, the worker inserts the electric wire 90 through the insertion hole 91 to arrange the electric wire 90 between the locking piece 51 and the pressing piece 52 and the terminal board 41 .

[0050] Next, the worker rotates the pressing member 60 in the rotation direction B. As a result, as shown in Fig. 4, the pair of first pressing protrusions 63a move in the rotation direction B and separate from the locking piece 51, and the pair of second pressing protrusions 63b move in the rotation direction B and separate from the pressing piece 52, thereby returning the locking spring 50 to its original state. The electric wire 90 is sandwiched between the terminal 40 and the locking spring 50, so that the electric wire 90 is electrically connected to the terminal 40, and the electric wire 90 is fixed to the terminal structure 3.

[0051] Then, the worker can complete the attachment of the electric wire 90 to the wiring device 1.

[0052] The operation for removing the electric wire 90 from the wiring device 1 is similar to the above method.

[0053] <Action and effect> Next, the effects of the terminal structure 3 in this embodiment will be described.

[0054] As described above, the terminal structure 3 of the first technique in the present embodiment is a terminal structure 3 accommodated in the housing 5 so that the electric wire 90 inserted through the insertion hole 91 formed in the housing 5 can be electrically connected to the terminal 40, and includes an elastic member (locking spring 50) that elastically contacts the inserted electric wire 90, and a pressing member 60. The pressing member 60 is supported by a recess 76 formed in the housing 5 and rotates about the recess 76 as a fulcrum. When the insertion hole 91 and the elastic member (locking spring 50) are viewed so as to face the opening surface of the insertion hole 91, the pressing member 60 presses the elastic member (locking spring 50) in the rotation direction A, thereby elastically deforming the elastic member (locking spring 50), thereby reducing the area of ​​the region of the elastic member (locking spring 50) that overlaps with the insertion hole 91. The pressing member 60 has a protrusion 63 that presses the elastic member (locking spring 50). The protrusion 63 has a first pressing protrusion 63a that presses the elastic member (locking spring 50) and a second pressing protrusion 63b that presses the elastic member (locking spring 50).

[0055] According to this, when an operator inserts the electric wire 90 into the insertion hole 91 of the housing 5, the operator operates the pressing member 60. At this time, the pressing member 60 rotates about the recess 76 as a fulcrum, so that the first pressing protrusion 63a and the second pressing protrusion 63b of the pressing member 60 can press the locking spring 50. As a result, the locking spring 50 moves away from the terminal plate 41 of the terminal 40, so that the area of ​​the locking spring 50 that overlaps with the insertion hole 91 is reduced, and a gap into which the electric wire 90 can be inserted can be formed.

[0056] Therefore, according to the present disclosure, even a soft electric wire 90 can be easily inserted into the insertion hole 91.

[0057] The wiring device 1 of the tenth aspect of the present embodiment includes the terminal structure 3 according to any one of the first to ninth aspects, and a housing 5.

[0058] This wiring device 1 also provides the same operational effects as those described above.

[0059] The terminal structure 3 of Technology 2 in this embodiment is the terminal structure 3 described in Technology 1. In this case, the elastic member (locking spring 50) has a first elastic deformation portion (locking piece 51) and a second elastic deformation portion (pressing piece 52). The protrusion 63 has a first pressing protrusion 63a that presses the first elastic deformation portion (locking piece 51) when the pressing member 60 is pressed in the rotation direction A, and a second pressing protrusion 63b that presses the second elastic deformation portion (pressing piece 52) when the pressing member 60 is pressed in the rotation direction A.

[0060] According to this, when the pressing member 60 rotates with the recess 76 as a fulcrum, the first pressing protrusion 63a of the protrusion 63 can press the locking piece 51, and the second pressing protrusion 63b of the protrusion 63 can press the pressing piece 52. In other words, since the locking piece 51 and the pressing piece 52 can be elastically deformed by the separate protrusions 63, the locking piece 51 and the pressing piece 52 can be elastically deformed stably.

[0061] Moreover, the terminal structure 3 of Technology 3 in this embodiment is the terminal structure 3 described in Technology 2. In this case, the elastic member (locking spring 50) is pressed in the rotation direction A by the pressing member 60, and after the first elastic deformation portion (locking piece 51) is elastically deformed, the second elastic deformation portion (pressing piece 52) starts to elastically deform.

[0062] For example, in a configuration in which the pressing member elastically deforms the locking piece and the pressing piece at the same time, the pressing piece that is located farther from the recess that serves as the fulcrum may be pressed more than necessary.

[0063] However, according to this embodiment, after the locking piece 51 is elastically deformed, the pressing piece 52 also further elastically deforms, so that the locking piece 51 and the pressing piece 52 can be elastically deformed in this order in stages. Therefore, it becomes difficult for the pressing member 60 to elastically deform the pressing piece 52 more than necessary, so that when the pressure of the pressing member 60 on the locking piece 51 is released, the elastically deformed locking spring 50 can return to its original shape.

[0064] Furthermore, when the operator starts to operate the pressing member 60, the first pressing protrusion 63a elastically deforms only the locking piece 51, so the operator can reduce the force that he or she applies to the pressing member 60 at the start of the operation. After that, the operator can gradually increase the force that he or she applies to the pressing member 60 by building on the momentum of operating the pressing member 60. This makes it easier for the operator to operate the pressing member 60.

[0065] The terminal structure 3 of Technology 4 in this embodiment is the terminal structure 3 described in Technology 2 or 3. In this case, the first elastic deformation portion (locking piece 51) is arranged closer to the recess 76 than the second elastic deformation portion (pressing piece 52). The first pressing protrusion 63a is arranged closer to the recess 76 than the second pressing protrusion 63b.

[0066] According to this, the locking piece 51 and the pressing piece 52 are arranged side by side in the insertion hole 91, so that the electric wire 90 inserted into the insertion hole 91 can be fixed to the terminal structure 3 by the locking piece 51 and the pressing piece 52. As a result, the electrical connection between the terminal structure 3 and the electric wire 90 can be more easily maintained.

[0067] The terminal structure 3 of Technique 5 in this embodiment is the terminal structure 3 described in any one of Techniques 2 to 4. In this case, the pressing member 60 further includes a pivot support portion 61a disposed in the recess 76 and a handle portion 62 capable of pressing the pressing member 60 in the rotation direction A.

[0068] According to this, an operator can grip the handle portion 62 of the pressing member 60 to operate it, so that the operator can operate the pressing member 60 more easily.

[0069] The terminal structure 3 of Technique 6 in this embodiment is the terminal structure 3 described in Technique 5. In this case, the protruding portion 63 is disposed closer to the pivot portion 61a than the handle portion 62.

[0070] According to this, since the convex portion 63 can be brought closer to the pivot support portion 61a than the handle portion 62, it is possible to increase the moment of the force that the convex portion 63 applies to the locking spring 50 relative to the force applied by the operator when the operator operates the pressing member 60. This makes it easier for the operator to operate the pressing member 60.

[0071] The terminal structure 3 of Technique 7 in the present embodiment is the terminal structure 3 described in any one of Techniques 2 to 6. In this case, the first elastic deformation portion (locking piece 51) is disposed closer to the opening surface of the insertion hole 91 than the second elastic deformation portion (pressing piece 52).

[0072] According to this, the locking piece 51 close to the opening surface of the insertion hole 91 is elastically deformed, and then the pressing piece 52 is elastically deformed, so that the worker can insert the electric wire 90 into the insertion hole 91 while operating the pressing member 60. Therefore, it is possible to suppress a decrease in the worker's workability.

[0073] The terminal structure 3 of the eighth aspect of the present embodiment is the terminal structure 3 described in the fifth or sixth aspect. In this case, the pressing member 60 has a pair of first pressing protrusions 63a, a pair of second pressing protrusions 63b, and a pair of pivotal support portions 61a. The pair of first pressing protrusions 63a, the pair of second pressing protrusions 63b, and one of the pair of pivotal support portions 61a, the one of the first pressing protrusions 63a, the one of the second pressing protrusions 63b, and one of the pivotal support portions 61a, and the other of the first pressing protrusions 63a, the other of the second pressing protrusions 63b, and the other of the pivotal support portion 61a are arranged to sandwich the elastic member (locking spring 50) from both sides of the elastic member (locking spring 50).

[0074] According to this, when the pressing member 60 rotates around the recess 76 as a fulcrum, the pair of first pressing protrusions 63a can press both edges of the locking piece 51, and the pair of second pressing protrusions 63b can press both edges of the pressing piece 52. For example, compared to a case where one first pressing protrusion presses the locking piece or one second pressing protrusion presses the pressing piece, the locking piece 51 and the pressing piece 52 can be elastically deformed more stably. Therefore, a gap into which the electric wire 90 can be inserted can be appropriately formed inside the insertion hole 91. As a result, the electric wire 90 can be easily inserted into the insertion hole 91.

[0075] Moreover, the terminal structure 3 of Technique 9 in this embodiment is the terminal structure 3 described in any one of Techniques 1 to 8. In this case, the terminal structure 3 is disposed in a housing of a socket or a housing of a switch.

[0076] This allows the terminal structure 3 to be used as a socket or a switch.

[0077] (Other variations) Although the terminal structure and wiring device according to the present disclosure have been described based on the above-mentioned embodiments, the present disclosure is not limited to these embodiments. As long as the modifications do not deviate from the spirit of the present disclosure, modifications that a person skilled in the art may make to the embodiments may also be included within the scope of the present disclosure.

[0078] In addition, the present disclosure also includes forms obtained by applying various modifications to the above-described embodiments that a person skilled in the art may conceive, and forms realized by arbitrarily combining the components and functions of each embodiment within the scope that does not deviate from the spirit of the present disclosure. [Explanation of symbols]

[0079] 1 Wiring device 3 Terminal structure 5. Housing 40 Terminals 50 Locking spring (elastic member) 51 Lock piece (first elastic deformation part) 52 pressing piece (second elastic deformation part) 60 Pressing member 61a Axial support 62 Handle 63 Convex 63a First pressing protrusion 63b Second pressing protrusion 76 Recess 90 Electric wire 91 Insertion hole

Claims

1. A terminal structure in which an electric wire inserted through an insertion hole formed in a housing is accommodated in the housing so as to be electrically connectable to the terminal, an elastic member that elastically contacts the inserted electric wire; A pressing member, The pressing member is The housing is supported by a recess formed in the housing and rotates about the recess, When the insertion hole and the elastic member are viewed so as to face an opening surface of the insertion hole, the pressing member presses the elastic member in a rotational direction to elastically deform the elastic member, thereby reducing an area of ​​the region of the elastic member that overlaps with the insertion hole, the pressing member has a protrusion that presses the elastic member, The protrusion has a first pressing protrusion that presses the elastic member and a second pressing protrusion that presses the elastic member. Terminal structure.

2. The elastic member has a first elastic deformation portion and a second elastic deformation portion, The convex portion includes a first pressing convex portion that presses the first elastic deformation portion when the pressing member is pressed in the rotation direction, and a second pressing convex portion that presses the second elastic deformation portion when the pressing member is pressed in the rotation direction. The terminal structure according to claim 1 .

3. The elastic deformation of the elastic member by the pressing member is caused by the elastic member being pressed in the rotation direction, After the first elastic deformation portion is elastically deformed, the second elastic deformation portion starts to elastically deform. The terminal structure according to claim 2 .

4. the first elastic deformation portion is disposed closer to the recess than the second elastic deformation portion; The first pressing protrusion is disposed closer to the recess than the second pressing protrusion. The terminal structure according to claim 2 or 3.

5. The pressing member further includes a support portion disposed in the recess and a handle portion capable of pressing the pressing member in the rotation direction. The terminal structure according to claim 2 or 3.

6. The protruding portion is disposed closer to the pivot portion than the handle portion. The terminal structure according to claim 5 .

7. The first elastic deformation portion is disposed closer to the opening surface of the insertion hole than the second elastic deformation portion. The terminal structure according to claim 2 or 3.

8. The pressing member has a pair of the first pressing protrusions, a pair of the second pressing protrusions, and a pair of the pivot support portions, the pair of first pressing convex portions, the pair of second pressing convex portions, and the pair of pivot support portions, one of the first pressing convex portion, one of the second pressing convex portion, and one of the pivot support portions, and the other of the first pressing convex portion, the other of the second pressing convex portion, and the other of the pivot support portions, are arranged to sandwich the elastic member from both sides of the elastic member; The terminal structure according to claim 5 .

9. The terminal structure is disposed within a housing of a socket or within the housing of a switch. The terminal structure according to any one of claims 1 to 3.

10. The terminal structure according to any one of claims 1 to 3, A housing. Wiring equipment.

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