Connection structure between cable and circuit board, and cable with circuit board

Abstract

To provide a connection structure between an electric wire and a circuit board which can easily connect a plurality of wires to the circuit board, and a cable with a circuit board using this connection structure.SOLUTION: First to sixth wires 11 to 16 are connected to a circuit board 2 using a guide member 3 attached to the circuit board 2. The guide member 3 has first to sixth guide holes 31 to 36 through which core wires 111, 121, 131, 141, 151, and 161 are respectively inserted of the first to sixth wires 11 to 16. The circuit board 2 is provided with first to sixth through holes 21 to 26 through which the respective core wires 111, 121, 131, 141, 151, and 161 of the first to sixth wires 11 to 16 passing through the first to sixth guide holes 31 to 36 are inserted. The first to sixth guide holes 31 to 36 have taper hole portion 311, 321, 331, 341, 351, and 361, which have smaller inner diameters toward the circuit board 2, leading the first to sixth guide hole 31 to 36.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a connection structure between an electric wire and a circuit board, and a cable with a circuit board.

Background Art

[0002] Conventionally, as a structure for connecting an electric cable having a plurality of electric wires to a circuit board, for example, the one described in Patent Document 1 is known. Patent Document 1 describes connecting an electric cable to a circuit board via a connector having an insulating housing and a plurality of terminals. One end of each terminal is connected to the conductor of the electric cable, and the other end is inserted into a conductive via provided on the board. The tip of the terminal at the portion inserted into the conductive via is formed in a tapered shape for facilitating the insertion operation into the conductive via.

[0003] In addition, in order to facilitate the insertion of the lead terminals of electronic components into the through holes of the circuit board, it is described in Patent Documents 2 and 3 that a part or all of the through holes are formed in a tapered hole shape.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0005] As in the case of that described in Patent Document 1, when electrically connecting a plurality of electric wires to a circuit board using a connector having a plurality of terminals, there is a background that the work of directly connecting the plurality of electric wires to the circuit board is difficult and time-consuming. In other words, if the plurality of electric wires can be easily connected to the circuit board without passing through the plurality of terminals, it contributes to cost reduction and also improves reliability.

[0006] Therefore, an object of the present invention is to provide a connection structure between an electric wire and a circuit board that enables easy connection of a plurality of electric wires to the circuit board, and a cable with a circuit board using this connection structure.

Means for Solving the Problems

[0007] The present invention is a connection structure between a plurality of electric wires in which a conductive core wire is covered with an insulating coating and a circuit board to which the core wires of each of the plurality of electric wires are connected, comprising a guide member attached to the circuit board, the guide member being provided with a plurality of guide holes for inserting the core wires of each of the plurality of electric wires, the circuit board being provided with a plurality of through holes for inserting the core wires of each of the plurality of electric wires that have passed through the plurality of guide holes, and the plurality of guide holes having a tapered hole portion whose inner diameter becomes smaller toward the circuit board side, and provides a connection structure between an electric wire and a circuit board.

[0008] Further, the present invention is for the purpose of solving the above problems, and includes a plurality of electric wires in which a conductive core wire is covered with an insulating coating, a circuit board to which the core wires of each of the plurality of electric wires are connected, and a guide member attached to the circuit board, the guide member being provided with a plurality of guide holes for inserting the core wires of each of the plurality of electric wires, the circuit board being provided with a plurality of through holes for inserting the core wires of each of the plurality of electric wires that have passed through the plurality of guide holes, and the plurality of guide holes having a tapered hole portion whose inner diameter becomes smaller toward the circuit board side, and provides a cable with a circuit board.

Effects of the Invention

[0009] According to the connection structure between an electric wire and a circuit board and the cable with a circuit board according to the present invention, a plurality of electric wires can be easily connected to the circuit board.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiments for Carrying Out the Invention

[0011] [Embodiment] FIG. 1 is a configuration diagram showing a cable with a circuit board according to an embodiment of the present invention. FIG. 2 is a configuration diagram showing each component of the cable with a circuit board. FIG. 3 is a partial cross-sectional view showing a part of the cable with a circuit board in cross-section. FIG. 4 is a cross-sectional view of the guide member. FIG. 5 is a cross-sectional view of the circuit board. FIG. 6(a) is a plan view showing the front surface of the circuit board, and FIG. 6(b) is a plan view showing the back surface of the circuit board.

[0012] The cable 1 with a circuit board includes a cable 10 having first to sixth electric wires 11 to 16, a circuit board 2 to which the first to sixth electric wires 11 to 16 are connected, and a guide member 3 attached to the circuit board 2. As shown in FIG. 2, the first to sixth electric wires 11 to 16 are insulated electric wires in which conductive core wires 111, 121, 131, 141, 151, 161 are covered with insulating coatings 112, 122, 132, 142, 152, 162. The core wires 111, 121, 131, 141, 151, 161 are stranded wires formed by stranding a plurality of strands 100 (see FIG. 3). The strands 100 are made of, for example, a copper alloy or an aluminum alloy.

[0013] The cable 10 includes a sheath 17 that collectively covers the first to sixth electric wires 11 to 16, and a holder 18 that holds an end portion of the sheath 17 together with a part of each of the first to sixth electric wires 11 to 16. In FIG. 1, the outer shape of the holder 18 is shown by a two-dot chain line, and the first to sixth electric wires 11 to 16 inside it are shown by solid lines. The first to sixth electric wires 11 to 16 are led out from the holder 18 toward the guide member 3. In the present embodiment, the holder 18 is a resin molded body formed by molding. However, it is not limited to this, and for example, the holder 18 may be configured by a combination of a plurality of members made of metal or resin.

[0014] The first to sixth electric wires 11 to 16 are led out from the holder 18 with their respective core wires 111, 121, 131, 141, 151, 161 covered with insulating coatings 112, 122, 132, 142, 152, 162. The insulating coatings 112, 122, 132, 142, 152, 162 are colored in different colors (including achromatic colors). For example, the insulating coating 112 of the first electric wire 11 is blue, the insulating coating 122 of the second electric wire 12 is green, the insulating coating 132 of the third electric wire 13 is white, the insulating coating 142 of the fourth electric wire 14 is red, the insulating coating 152 of the fifth electric wire 15 is black, and the insulating coating 162 of the sixth electric wire 16 is yellow.

[0015] The circuit board 2 is a solid board having a plate-shaped base material 20 made of an insulating resin such as glass epoxy. The core wires 111, 121, 131, 141, 151, 161 of the first to sixth electric wires 11 to 16 are directly connected to the circuit board 2 by soldering. Further, the circuit board 2 is provided with first to sixth through holes 21 to 26 through which the core wires 111, 121, 131, 141, 151, 161 of the first to sixth electric wires 11 to 16 are inserted. The first to sixth through holes 21 to 26 are through holes that penetrate between the front (front) surface 2a and the back surface 2b of the circuit board 2.

[0016] As shown in FIG. 5, the first to sixth through holes 21 to 26 each have lands 211, 221, 231, 241, 251, 261 on the surface 2a side, lands 212, 222, 232, 242, 252, 262 on the back surface 2b side, and cylindrical conductors 213, 223, 233, 243, 253, 263 connecting the lands on both the surface 2a side and the back surface 2b side. The cylindrical conductors 213, 223, 233, 243, 253, 263 are formed by plating the inner surface of a hole drilled in the base material 20. In the present embodiment, the first to sixth through holes 21 to 26 are provided in a row along the end of the circuit board 2. However, the present invention is not limited to this, and a plurality of through holes may be provided, for example, in a staggered pattern, or may be provided in the central portion of the circuit board.

[0017] The front surface 2a of the circuit board 2 is a mounting surface on which electronic components such as physical quantity sensors that detect physical quantities such as magnetic field strength or temperature and communication ICs are mounted. FIG. 6(a) shows an example of a wiring pattern 291 that connects the terminals of these electronic components to the first to sixth through holes 21 to 26. The wiring pattern 292 on the back surface 2b of the circuit board 2 shown in FIG. 6(b) is mainly composed of a ground pattern that is electrically grounded. However, the electronic components mounted on the circuit board 2, the wiring patterns on the front surface 2a and the back surface 2b, and the size and shape of the circuit board 2 are appropriately designed according to the use and function of the cable 1 with the circuit board.

[0018] The guide member 3 is made of, for example, an injection-molded non-conductive resin, and integrally has a rectangular parallelepiped guide member body 30 and first and second fixing protrusions 37 and 38 for fixing the guide member body 30 to the circuit board 2. The guide member body 30 is provided with first to sixth guide holes 31 to 36 through which the core wires 111, 121, 131, 141, 151, and 161 of the first to sixth electric wires 11 to 16 are inserted, respectively. The circuit board 2 is provided with a first fitting hole 27 into which the first fixing protrusion 37 is fitted and a second fitting hole 28 into which the second fixing protrusion 38 is fitted.

[0019] The guide member body 30 has a pair of leg portions 301 and 302 at both ends in the longitudinal direction. The front end surfaces 301a and 302a of the leg portions 301 and 302 are in contact with the surface 2a of the circuit board 2. The first and second fixing protrusions 37 and 38 are erected perpendicularly to the front end surfaces 301a and 302a of the pair of leg portions 301 and 302, respectively. Further, a recess 300 that is recessed in a direction perpendicular to the surface 2a of the circuit board 2 is formed in the guide member body 30 between the pair of leg portions 301 and 302.

[0020] The first to sixth guide holes 31 to 36 are formed to penetrate between the upper surface 30a, which is the surface of the guide member body 30 facing the holder 18, and the lower surface 30b, which is the surface of the guide member body 30 facing the circuit board 2, in a direction perpendicular to the circuit board 2. The upper surface 30a is the opening end surface of the first to sixth guide holes 31 to 36 on the holder 18 side. The lower surface 30b is the inner surface of the recess 300 and is also the opening end surface of the first to sixth guide holes 31 to 36 on the circuit board 2 side. A gap is formed between the lower surface 30b and the surface 2a of the circuit board 2 to avoid contact between the solder 4, which will be described later, and the guide member body 30.

[0021] The holder 18 has a pair of legs 181 and 182 that abut against the upper surface 30a of the guide member body 30. The first to sixth electric wires 11 to 16 are led out from between the pair of legs 181 and 182. A window portion 180 through which the insulation coatings 112, 122, 132, 142, 152, and 162 of the first to sixth electric wires 11 to 16 can be visually recognized is formed between the holder 18 and the guide member 3. As described above, since the insulation coatings 112, 122, 132, 142, 152, and 162 are colored in different colors respectively, miswiring can be detected by visually recognizing the insulation coatings 112, 122, 132, 142, 152, and 162 through the window portion 180.

[0022] As shown in FIG. 4, the first to sixth guide holes 31 to 36 each have a tapered hole portion 311, 321, 331, 341, 351, 361 having a partial conical shape and a cylindrical hole portion 312, 322, 332, 342, 352, 362 having a constant inner diameter. The tapered hole portions 311, 321, 331, 341, 351, 361 are provided on the upper surface 30a side of the guide member body 30. The cylindrical hole portions 312, 322, 332, 342, 352, 362 are provided on the lower surface 30b side (circuit board 2 side) of the guide member body 30 rather than the tapered hole portions 311, 321, 331, 341, 351, 361.

[0023] The core wires 111, 121, 131, 141, 151, and 161 of the first to sixth electric wires 11 to 16 are inserted into the tapered hole portions 311, 321, 331, 341, 351, 361 from the upper surface 30a side of the guide member body 30, pass through the first to sixth guide holes 31 to 36 via the cylindrical hole portions 312, 322, 332, 342, 352, 362, and are inserted into the first to sixth through holes 21 to 26 of the circuit board 2. The tip portions of the core wires 111, 121, 131, 141, 151, and 161 protrude to the back surface 2b side of the circuit board 2.

[0024] As shown in FIG. 3, the core wires 111, 121, 131, 141, 151, 161 inserted into the first to sixth through holes 21 to 26 are connected to the lands 211, 221, 231, 241, 251, 261 on the surface 2a side of the first to sixth through holes 21 to 26, the cylindrical conductors 213, 223, 233, 243, 253, 263, and the lands 212, 222, 232, 242, 252, 262 on the back surface 2b side by solder 4, respectively. Since a gap is formed between the lower surface 30b of the guide member body 30 and the surface 2a of the circuit board 2 as described above, an appropriate amount of solder 4 is also supplied to the lands 211, 221, 231, 241, 251, 261 on the surface 2a side of the circuit board 2.

[0025] The tapered hole portions 311, 321, 331, 341, 351, 361 of the first to sixth guide holes 31 to 36 have a smaller inner diameter toward the lower surface 30b side (circuit board 2 side). The maximum inner diameter D1 (see FIG. 4) of the tapered hole portions 311, 321, 331, 341, 351, 361 is formed larger than the outer diameter of each of the insulating coatings 112, 122, 132, 142, 152, 162 of the first to sixth electric wires 11 to 16. The minimum inner diameter D2 of the tapered hole portions 311, 321, 331, 341, 351, 361 is formed smaller than the outer diameter of the insulating coatings 112, 122, 132, 142, 152, 162 and slightly larger than the outer diameter of the core wires 111, 121, 131, 141, 151, 161.

[0026] The cylindrical hole portions 312, 322, 332, 342, 352, 362 of the first to sixth guide holes 31 to 36 have an inner diameter formed at the minimum inner diameter D2 of the tapered hole portions 311, 321, 331, 341, 351, 361. The inner diameter (minimum inner diameter D2) of the cylindrical hole portions 312, 322, 332, 342, 352, 362 is formed smaller than the inner diameter D3 (see FIG. 5) of the first to sixth through holes 21 to 26. Also, the length L of the first to sixth guide holes 31 to 36 is formed longer than the thickness T of the circuit board 2.

[0027] (Operations and Effects of the Embodiment) According to the embodiments described above, the following operations and effects can be obtained.

[0028] Since the first to sixth guide holes 31 to 36 have tapered hole portions 311, 321, 331, 341, 351, 361, the core wires 111, 121, 131, 141, 151, 161 of the first to sixth electric wires 11 to 16 are guided by the inner surfaces 311a, 321a, 331a, 341a, 351a, 361a of the respective tapered hole portions 311, 321, 331, 341, 351, 361, and each strand 100 of the core wires 111, 121, 131, 141, 151, 161 can be easily inserted into the first to sixth through holes 21 to 26 of the circuit board 2.

[0029] Also, since the lengths L of the first to sixth guide holes 31 to 36 are longer than the thickness T of the circuit board 2, the core wires 111, 121, 131, 141, 151, 161 can be supported over a long distance as compared with the case where, for example, part or all of the first to sixth through holes 21 to 26 are formed in a tapered hole shape, and the maximum inner diameter D1 of the tapered hole portions 311, 321, 331, 341, 351, 361 can be increased.

[0030] Due to the dimensional relationship that the maximum inner diameter D1 of the tapered hole portions 311, 321, 331, 341, 351, 361 is larger than the outer diameters of the insulating coatings 112, 122, 132, 142, 152, 162, and the minimum inner diameter D2 of the tapered hole portions 311, 321, 331, 341, 351, 361 is smaller than the outer diameters of the insulating coatings 112, 122, 132, 142, 152, 162 and the inner diameter D3 of the first to sixth through holes 21 to 26, the guiding function of the core wires 111, 121, 131, 141, 151, 161 by the tapered hole portions 311, 321, 331, 341, 351, 361 is enhanced, and the core wires 111, 121, 131, 141, 151, 161 can be smoothly inserted into the first to sixth through holes 21 to 26 of the circuit board 2.

[0031] Since the first to sixth guide holes 31 to 36 have cylindrical hole portions 312, 322, 332, 342, 352, 362, the core wires 111, 121, 131, 141, 151, 161 can be led out toward the circuit board 2 so as to be parallel to each other.

[0032] Since the holder 18 holds the end portion of the sheath 17 together with a part of the first to sixth electric wires 11 to 16, the first to sixth electric wires 11 to 16 are not bent significantly at the portion led out from the sheath 17, and it is easy to insert the first to sixth electric wires 11 to 16 into the first to sixth guide holes 31 to 36 collectively.

[0033] Since the insulating coatings 112, 122, 132, 142, 152, 162 can be visually recognized from the window portion 180, it is easy to detect miswiring. Further, since a gap is formed between the lower surface 30b of the guide member main body 30 and the surface 2a of the circuit board 2, an appropriate amount of solder 4 is supplied to the lands 211, 221, 231, 241, 251, 261 on the surface 2a side of the circuit board 2, and soldering of the core wires 111, 121, 131, 141, 151, 161 can be surely performed.

[0034] (Summary of the Embodiment) Next, the technical idea grasped from the embodiments described above will be described by referring to the reference numerals and the like in the embodiments. However, each reference numeral in the following description is not limited to the members and the like that specifically show the components in the claims in the embodiments.

[0035] [1] A connection structure between a plurality of electric wires (11 - 16) in which conductive core wires (111, 121, 131, 141, 151, 161) are covered with insulating coatings (112, 122, 132, 142, 152, 162), and a circuit board (2) to which the respective core wires (111, 121, 131, 141, 151, 161) of the plurality of electric wires (11 - 16) are connected. The connection structure includes a guide member (3) attached to the circuit board (2). The guide member (3) is provided with a plurality of guide holes (31 - 36) through which the respective core wires (111, 121, 131, 141, 151, 161) of the plurality of electric wires (11 - 16) are inserted. The circuit board (2) is provided with a plurality of through holes (first to sixth through holes 21 - 26) through which the respective core wires of the plurality of electric wires passing through the plurality of guide holes (31 - 36) are inserted. The plurality of guide holes (31 - 36) have tapered hole portions (311, 321, 331, 341, 351, 361) whose inner diameters become smaller toward the circuit board (2) side. A connection structure between an electric wire and a circuit board.

[0036] [2] The connection structure between an electric wire and a circuit board according to [1] above, wherein the length (L) of the plurality of guide holes (31 - 36) is longer than the thickness (T) of the circuit board (2).

[0037] [3] The maximum inner diameter (D1) of the tapered hole portions (311, 321, 331, 341, 351, 361) is larger than the outer diameter of the respective insulating coatings (112, 122, 132, 142, 152, 162) of the plurality of electric wires (11 - 16). The minimum inner diameter (D2) of the tapered hole portions (311, 321, 331, 341, 351, 361) is smaller than the outer diameter of the respective insulating coatings (112, 122, 132, 142, 152, 162) of the plurality of electric wires (11 - 16) and smaller than the inner diameter of the plurality of through holes (21 - 26). The connection structure between an electric wire and a circuit board according to [1] or [2] above.

[0038] [4] The plurality of guide holes (31 to 36) have cylindrical hole portions (312, 322, 332, 342, 352, 362) provided on the circuit board (2) side of the tapered hole portions (311, 321, 331, 341, 351, 361), and the inner diameters of the cylindrical hole portions (321, 322, 332, 342, 352, 362) are formed to be the minimum inner diameter (D2) on the circuit board (2) side in the tapered hole portions (311, 321, 331, 341, 351, 361). The connection structure between the electric wire and the circuit board according to any one of [1] to [3] above.

[0039] [5] A sheath (17) that collectively covers the plurality of electric wires (11 to 16) is provided. The end portion of the sheath (17) is held by a holder (18) together with a part of each of the plurality of electric wires (11 to 16), and the plurality of electric wires (11 to 16) are led out from the holder (18). The connection structure between the electric wire and the circuit board according to any one of [1] to [4] above.

[0040] [6] The core wires (111, 121, 131, 141, 151, 161) of each of the plurality of electric wires (11 to 16) are led out from the holder (18) in a state covered with the insulating coatings (112, 122, 132, 142, 152, 162). A window portion (180) through which the insulating coatings (112, 122, 132, 142, 152, 162) can be visually recognized is formed between the holder (18) and the guide member (3). The connection structure between the electric wire and the circuit board according to [5] above.

[0041] [7] A gap is formed between the opening end surface (30b) on the circuit board (2) side of the plurality of guide holes (31 to 36) in the guide member (3) and the circuit board (2). The connection structure between the electric wire and the circuit board according to any one of [1] to [6] above.

[0042] [8]A circuit board with cable (1) includes a plurality of wires (11 - 16) in which conductive core wires (111, 121, 131, 141, 151, 161) are coated with insulation coatings (112, 122, 132, 142, 152, 162), a circuit board (2) to which the core wires (111, 121, 131, 141, 151, 161) of each of the plurality of wires (11 - 16) are connected, and a guide member (3) attached to the circuit board (2). The guide member (3) is provided with a plurality of guide holes (31 - 36) for inserting the core wires (111, 121, 131, 141, 151, 161) of each of the plurality of wires (11 - 16). The circuit board (2) is provided with a plurality of through holes (21 - 26) for inserting the core wires (111, 121, 131, 141, 151, 161) of each of the plurality of wires (11 - 16) that have passed through the plurality of guide holes (31 - 36). The plurality of guide holes (31 - 36) have tapered hole portions (311, 321, 331, 341, 351, 361) whose inner diameters become smaller toward the circuit board (2) side.

[0043] The embodiments of the present invention have been described above. However, the embodiments described above do not limit the invention according to the claims. Also, it should be noted that not all combinations of the features described in the embodiments are essential means for solving the problems of the invention.

Explanation of Reference Numerals

[0044] 1... Circuit board with cable 11 - 16... First to sixth wires 111, 121, 131, 141, 151, 161... Core wires 112, 122, 132, 142, 152, 162... Insulation coatings 17... Sheath 18... Holder 180... Window portion 2... Circuit board 21 - 26... First to sixth through holes (through holes) 3... Guide member 30... Guide member body 30a... Upper surface 30b... below 31 to 36... the first to sixth guide holes 311, 321, 331, 341, 351, 361... tapered hole portions 321, 322, 332, 342, 352, 362... cylindrical hole portions D1... maximum inner diameter D2... minimum inner diameter L... the length of the first to sixth guide holes 31 to 36 T... the thickness of the circuit board 2

Claims

1. A connection structure between a cable including a plurality of electric wires each having a conductive core wire covered with an insulating coating and a sheath covering the plurality of electric wires together, and a circuit board to which the core wires of the plurality of electric wires are connected, comprising: a guide member attached to the circuit board, and a holder that holds together an end portion of the sheath and a part of each of the plurality of electric wires; the guide member is provided with a plurality of guide holes through which the core wires of the plurality of electric wires are inserted; the circuit board is provided with a plurality of through holes through which the core wires of the plurality of electric wires passing through the plurality of guide holes are inserted; the plurality of guide holes have tapered hole portions whose inner diameters become smaller toward the circuit board side; with the core wires of the plurality of electric wires covered with the insulating coating, the plurality of electric wires are led out from the holder; a window portion through which the insulating coating of each of the plurality of electric wires can be visually recognized is formed between the holder and the guide member; A connection structure between a cable and a circuit board.

2. The length of the plurality of guide holes is longer than the thickness of the circuit board; The connection structure between the cable and the circuit board according to claim 1.

3. The maximum inner diameter of the tapered hole portion is larger than the outer diameter of the insulating coating of each of the plurality of electric wires; The minimum inner diameter of the tapered hole portion is smaller than the outer diameter of the insulating coating of each of the plurality of electric wires and smaller than the inner diameter of the plurality of through holes; The connection structure between the cable and the circuit board according to claim 1 or 2.

4. The plurality of guide holes have cylindrical hole portions provided closer to the circuit board side than the tapered hole portions; The cylindrical hole portion has an inner diameter formed to be the minimum inner diameter on the circuit board side in the tapered hole portion; The connection structure between a cable and a circuit board according to any one of claims 1 to 3.

5. A gap is formed between the opening end surface on the circuit board side of the plurality of guide holes in the guide member and the circuit board. The connection structure between a cable and a circuit board according to any one of claims 1 to 4.

6. A cable formed by collectively covering a plurality of electric wires each having a conductive core wire covered with an insulating coating with a sheath, A circuit board to which the core wires of the plurality of electric wires are connected, A guide member attached to the circuit board, A holder that holds both the end of the sheath and a part of each of the plurality of electric wires, The guide member is provided with a plurality of guide holes for inserting the core wires of the plurality of electric wires, The circuit board is provided with a plurality of through holes for inserting the core wires of the plurality of electric wires that have passed through the plurality of guide holes, The plurality of guide holes have tapered hole portions with smaller inner diameters toward the circuit board side, The plurality of electric wires are led out from the holder with the core wires of the plurality of electric wires covered with the insulating coating, A window portion through which the insulating coating of each of the plurality of electric wires can be visually recognized is formed between the holder and the guide member. Cable with circuit board.

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