JP4948220B2 - Compression sleeve - Google Patents

Description

  The present invention relates to a compression sleeve that compresses a sleeve body without using a compression tool and crimps and connects core wires of a plurality of electric wires to be connected.

  As a conventional compression sleeve, for example, a sleeve body having a substantially bottomed cylindrical body having a plurality of cut-and-raised portions cut inwardly toward a substantially closed end portion and having a cross-sectional shape formed in an oval shape. The one provided is known (for example, Patent Document 1). Then, the core wires of the plurality of electric wires to be connected are inserted into the hollow portion of the sleeve body, and the parallel flat surfaces of the sleeve body are compressed by sandwiching them from the outside with two sandwiching pieces of pliers, The inner surface of the flat surface is brought into pressure contact with the core wire and brought into surface contact, and the leading end of each cut and raised is brought into pressure contact with the core wire and locked, so that the inserted electric wires can be electrically connected to each other, and the sleeve I try not to come out of the main body.

  Further, as other conventional compression sleeves, those in which the compressive force is applied almost evenly to the cores of the electric wires to be connected to prevent contact failure or disconnection of the cores of the electric wires have become publicly known. (For example, Patent Document 2). This compression sleeve bends one end side of the band plate into a substantially S shape, forms a cylindrical portion that can be inserted and held by the electric wire to be connected, and the other end side of the band plate It is formed so as to cover the outside of the cylindrical portion.

And by bending the other end side of the band plate with a tool such as pliers and covering the outside of each cylindrical part, the outer side of the core wire of each electric wire and the entire outer side are covered in a substantially cylindrical shape. The sleeve body thus processed is put into a compressor and compressed. In this case, the compressive load concerning each core wire becomes substantially equal, and contact failure of each core wire is prevented. On the other hand, since the opening end of each cylindrical part comes to be covered with the other end side of the strip, even if an external force is applied to the compression sleeve, the opening end of each cylindrical part does not open, The state in which the core wire of each electric wire is held is firmly maintained, and each core wire does not come out from each cylindrical portion.
JP 2003-134629 A Japanese Patent Publication No. 6-79495

  However, in the case of the conventional compression sleeve described above, when compressed with pliers, each clamping piece of the pliers comes into contact with each flat surface of the sleeve body in an inclined state. Thus, it is considered that the sleeve main body is not sufficiently crushed and contact failure or disconnection of the core wire of each electric wire may occur.

  In the case of the above-described other conventional compression sleeves, a dedicated compressor is required to apply the compressive force evenly while covering the core of each electric wire in a substantially cylindrical shape and covering the whole in a substantially cylindrical shape. Therefore, it is essential to manufacture the compressor and carry it into the work site. Therefore, the production of the compressor increases the cost, and it takes time for the compression work by using the compressor and the work for carrying in the compressor. On the other hand, the use of the compressor may be affected by the environment at the work site. There is.

  Therefore, in view of the above problems, the present invention can be compressed easily and reliably without using a compressor, the contact failure between the sleeve body and the core of each electric wire inserted into the sleeve body, and each It is an object of the present invention to provide a compression sleeve that can prevent the core wire from coming off from the sleeve body.

In order to solve the above-mentioned problem, when the compression sleeve according to the present invention is joined in a compression sleeve which is compressed and connected while substantially covering the cores C of the plurality of electric wires A from which the insulation coating B has been peeled off, A plurality of contact parts 2 that can be separated so as to form a cylindrical body that substantially covers the inserted core C, and a contact surface of the cover 2 that contacts the core C. The sleeve main body 1 having contact portions 5a and 5b that abut the core wire inserted into the cylindrical body to make the cylindrical body slightly expanded in diameter, and the cylindrical body in a slightly expanded diameter are in the axial direction. A compression holder 10 having an insertion hole 11 formed with a continuous surface 12 that is gradually compressed and can be compressed and held in a substantially cylindrical body as it is inserted into or into the circumferential direction. The sleeve body 1 is kept compressed by the insertion hole 11 in the insertion hole 11. Be as made up of a compression holding means provided on the sleeve body 1 and the compression holder 10, the continuous surface 12, which exhibits an oval cross-section, arcuate surface which ends of the major axis is located, slightly enlarged It is formed so that the cylindrical body in the state where it has been formed can be inserted, and the arc surface from the long axis to the short axis is formed so that it can be gradually compressed in the slightly expanded diameter, and the end of the short axis is located The arcuate surface is formed so that the gradually compressed cylinder can be compressed and held in a substantially cylindrical body .

  In this case, since the periphery of the core wire C can be covered in a substantially cylindrical shape by the covering portion, the compressive force is transmitted substantially uniformly to the peripheral surface of the core wire C. At this time, the contact portions 5a and 5b are in surface contact with the peripheral surface of the core C or point contact over a plurality of locations, so that the compressive force is more firmly transmitted through the contact portions 5a and 5b. Thus, the compressed state can be maintained even with respect to the tensile force in the axial direction.

  And the cylinder formed by each coating | coated part 2 is inserted in the insertion hole 11 of the compression holder 10 with the abutting part 5a, 5b contact | abutted to the core C, with the diameter slightly expanded. As a result, a compression action is generated on the core wire through the covering portion 2 and the contact portions 5a and 5b. Moreover, since the continuous surface 12 is formed in the axial direction or the circumferential direction in the insertion hole 11, each coating | coated part 2 comes to apply a compressive force gradually to the whole cylinder, and damages the core C Nor. Moreover, since the compressed state is held by the compression holder 10, the sleeve body 1 does not come out of the compression holder 10.

  Thus, in the series of operations of covering the core wire C with each covering portion 2, inserting the compression holder 10 into the insertion hole 11 and compressing the covering portion 2, no equipment is used, Since it is completed by the sleeve main body 1 and the compression holder 10, it is possible to contribute to cost reduction and improvement of work efficiency without extra costs and labor.

The insertion direction of the core C is not limited, and may be inserted from different directions or in parallel from the same direction. Further, the number of the cores C is not limited, and can be appropriately changed according to the number of the cores C to be connected. However, a plurality of cores C may be bundled and compressed, but it is preferable to compress the cores C individually.
And the said continuous surface 12 is exhibiting the elliptical cross section, the circular arc surface in which the edge part of a long axis is located is formed so that the cylindrical body of the state slightly expanded in diameter can be inserted, and it extends from a long axis to a short axis The circular arc surface is formed so as to be able to gradually compress the cylindrical body having a slightly expanded diameter, and the circular arc surface on which the end of the short axis is positioned can compress and hold the gradually compressed cylindrical body in the substantially cylindrical body. It is also possible to adopt a configuration that is formed.
In this case, when the sleeve body 1 is inserted into the insertion hole 11 having an elliptical cross section, each covering portion 2 is inserted in a state where the sleeve body 1 is positioned in the major axis direction, and the sleeve body 1 is moved from the major axis to the minor axis. As the arc surface becomes a continuous surface 12 that gradually decreases in length from the major axis to the minor axis, the covering portion 2 is gradually compressed. become able to. Further, when the compressed sleeve body 1 is positioned in the minor axis direction, the sleeve body 1 is compressed and held by the arc surface on which the minor axis end is located.

  Further, according to the present invention, the covering portion 2 is arranged so that the abutting portion 5a faces the abutting portions 5a of the flat covering-like common covering 3 provided on both sides of the abutting portion 5a. A contact portion 5b is provided on the inner surface, and is connected to both side ends of the common covering 3 or both sides of one end portion so that the core C can be held between the contact portions 5a and 5b. You may make it comprise from the saddle-shaped one side coating | cover 4 provided so that contact / separation is possible with respect to the common coating | covering body 3. FIG.

  For example, as shown in FIG. 1, two cores C are provided on both sides of the common covering 3, and two cores C are provided on both sides of one side as shown in FIGS. Since the four cores C can be covered on both side portions on both sides, a plurality of cores C can be covered efficiently and in a space-saving manner. And since each one-side covering body 4 has a bowl shape, the sleeve body 1 with the core C inserted therein forms a substantially cylindrical body, and is inserted into the insertion hole 11 in this state. While it can be inserted along the axial direction of the insertion hole 11, it can also be rotated along the circumferential direction, and can be compressed by any insertion method.

  Further, according to the present invention, the covering portion 2 is provided on both sides of the flat common covering 3 on which the contact portion 5a is provided on both surfaces and one end portion of the common covering 3 respectively. A bendable connecting portion 6 and an abutting portion 5b opposite to each abutting portion 5a of the common covering 3 are provided, and one end of each other is connected to the common covering 3 via each connecting portion 6. You may make it comprise from a pair of one-side coating | cover 4 made.

  In this case, since the bendable connecting portion 6 is provided between the common covering 3 and each one-side covering 4, the respective one-side coverings 4 can be compressed while being substantially translated with respect to the common covering 3. . That is, the compressive force by the contact bodies 5a and 5b of each one-side covering body 4 and the common covering body 3 can be transmitted to the core wire C substantially evenly.

  Further, according to the present invention, the compressing and holding means attaches each one-side covering 4 to each other in the engaging portion 7 formed along the axial direction on the outer surface of each one-side covering 4 and the continuous surface 12 of the insertion hole 11. You may make it comprise with the engagement groove | channel 13 which is formed in the position where it can compress and hold, and this latching | locking part 7 engages.

  In this case, the engaging portion 7 of each one-side cover 4 is engaged with the engaging groove 13 to prevent the sleeve body 1 from rotating, so that the sleeve body 1 is compressed in the compression holder 10. Can be held.

  As described above, according to the present invention, the sleeve main body that becomes a slightly expanded diameter cylindrical body is inserted in the axial direction by the continuous surface formed in the insertion hole of the compression holder, or in the circumferential direction. As it is gradually compressed as it rotates, it is compressed and held in a substantially cylindrical body, so that a plurality of core wires can be easily and reliably compressed and connected without using a compression device or the like. is there.

Hereinafter, the compression sleeve according to the embodiment of the present invention will be described with reference to FIGS.
(Working-shaped state)
First, the compression sleeve of the present type condition will be described with reference to FIGS.

  As shown in FIGS. 1 and 2, the compression sleeve has a covering portion 2 that substantially covers the core wires of a plurality of inserted wires, and a contact portion formed on the covering portion 2. A sleeve body 1 having 5a and 5b, and a compression holder 10 having an insertion hole 11 into which the sleeve body 1 is inserted, and having a continuous surface 12 that rotates and compresses the sleeve body 1 in the insertion hole 11. Yes.

  As shown in FIGS. 1 (a) and 1 (c), the covering portion 2 includes a flat common covering 3 disposed between the cores C, and above the cores with the common covering 3 interposed therebetween. And a hook-shaped one-side covering 4 disposed below, and a bendable connecting portion 6 formed on both surfaces of one end of the common covering 3.

  The common cover 3 is provided with a contact portion 5a having a concave groove on the upper surface and the lower surface of the common cover 3 and a contact portion 5b having substantially the same shape as the corresponding contact portion 5a. However, it protrudes so that it may be located between each contact part 5a of the common coating | covering body 3. FIG. Each of the contact parts 5a has an isosceles triangle side section, and its pointed portion bites into a V shape with respect to a straight core wire. Needless to say, the biting of the contact portions 5a and 5b with respect to the core C is a pressing force that does not cause the core C to be damaged and is not pulled out by an external tensile force.

  An insertion opening 8 for inserting the core wire C is formed between the common cover 3 and each one-side cover 1, and the core wire C is formed by the common cover 3 and each one-side cover 4. Is formed. In addition, the contact portions 5a of the common cover 3 and the contact portions 5b of the one-side cover 4 are arranged alternately, and in the compressed state, the contact portions 5a and 5b are the core wires. Point contact is made at a plurality of locations of C, and the entire core C is sandwiched between the contact portions 5a and 5b so as to have a substantially wave shape. On the other hand, even if a tensile force is applied to the electric wire A from the outside, the tensile force is applied to the entire core C by a plurality of bent portions formed by the contact of the contact portions 5a and 5b. The core wire C is not pulled out from the sleeve body 1.

  The connecting portion 6 is bent in a Σ shape in cross section, and a bent portion 6a bent in a square shape is formed on both sides. And the end part of each bending part 6a and the end part of each one side covering body 4 are integrated so that each one side covering body 4 may oppose at intervals, and one side edge part of the common covering body 3 is It is integrated with the top line portion of the bent portion 6a. Therefore, when each one-side cover 4 is pressed in the direction approaching the common cover 3, the one-side cover 4 approaches the common cover 3 while moving in parallel as shown in FIG. become.

  In addition, a substantially flat locking portion 7 is formed along the axial direction at the central portion of the outer surface of each one-side covering body 4, and if each locking portion 7 is clamped with a tool such as pliers or pliers, The one-side coverings 4 are pressed inward from each other and are moved approximately in parallel by the connecting portions 6 and come close to the common covering 3. That is, the contact portion 5b of each one-side covering body 4 bites into the core wire C with substantially equal pressure.

  As shown in FIGS. 2 (a) and 2 (b), the compression holder 10 is formed with an insertion hole 11 constituting a continuous surface 12 at the center thereof, in which the end of the short axis is located. An engaging groove 13 having a rectangular shape in plan view is formed in the arc surface to be engaged with the engaging portion 7 of the sleeve body 1. The continuous surface 12 has an elliptical cross section, and the arc surface on which the end of the long axis is located is formed so that the sleeve body 1 in a slightly expanded diameter can be inserted, from the long axis to the short axis. Is formed so that the sleeve body 1 in a slightly expanded diameter can be gradually compressed, and the engagement groove 13 in which the end of the short axis is located has a substantially cylindrical shape. It is formed so that it can be compressed and held.

  The reason why both end portions of the engaging groove 13 do not pass through the opening end portion of the insertion hole 11 and communicate with the outside is that the compressed sleeve body 1 is prevented from coming out of the compression holder 10 inside thereof. This is to fix the position. The engaging portion 7 and the engaging groove 13 constitute compression holding means for holding the compressed state of the sleeve body 1.

  Next, how the compression sleeve is used will be described with reference to FIGS. The compression holder 10 is inserted in advance in one of the electric wires A, and the cores C of the electric wires A are arranged in different directions as shown in FIG. 3 (a), and as shown in FIG. The core wire c is inserted from the insertion opening 8 formed in the sleeve body 1, and the locking portion 7 of the sleeve body 1 is temporarily compressed with a tool such as pliers or pliers as shown in FIG.

  Thereafter, as shown in FIG. 4A, the sleeve body 1 is temporarily compressed into the insertion hole 11 of the compression holder 10 so that the engaging portion 7 of the sleeve body 1 is positioned on the inner surface of the insertion hole 11 of the compression holder 10 in the long axis direction. Insert the sleeve body 1. Next, as shown in FIG. 4 (b), when the sleeve body 1 is rotated counterclockwise, as shown in FIGS. 4 (c) and 5, the locking portion 7 of the sleeve body 1 becomes the compression holder. The engagement groove 13 is engaged while being pressed and compressed by the inner peripheral surface of the ten insertion holes 11. As a result of this engagement, the contact portions 5a and 5b bite into the core C more firmly, and it is possible to reliably prevent poor contact and prevent the core C from coming off.

In the case of the exemplary shaped condition, the sleeve a sleeve body 1 of the provisional compressed state, but so as to present compressed by rotating after inserting into the insertion hole 11 of the compression holder 10, the core wire C is inserted The main body 1 may be inserted into the compression holder 10 and temporarily compressed without being temporarily compressed, and such a compression sleeve will be described below.

( Reference Example 1 )
The compression sleeve of the reference example 1 will be described with reference to FIGS.
As shown in FIG. 6 (a), the sleeve body 20 has a substantially S-shape when viewed from the front, and is composed of a flat plate-like common covering body 22 and a bowl-shaped one-side covering body 23 arranged vertically. A plurality of serrated (substantially right triangle) outer surface convex portions 24 are formed on each one-side covering body 23 along the arc surface. In addition, one end of the upper one-side covering 23 and the other end of the lower one-side covering 23 are connected and fixed to both ends of the common covering 22. Then, as shown in FIG. 6 (b), the sleeve body 20 is compressed to such an extent that the major axis dimension is slightly larger than the minor axis dimension with the minor axis dimension unchanged. The

  The other end of the upper one-side cover 23 and the other end of the common cover 22 can be contacted and separated, and the one end of the lower one-side cover 23 and the one end of the common cover 22 can be contacted and separated. In the state where each one-side covering body 23 is separated from the end portion of the common covering body 22, as shown in FIG. 6C, an elongated insertion opening 26 into which the core C is inserted and removed is formed in the horizontal direction. At the same time, a compression space of the core C is formed so as to communicate with the insertion opening 26 and along the length direction.

  The common covering 22 has an abutting portion 25a formed on the upper surface and the lower surface of the common covering 22 along the length direction of the sleeve body 20 so that the core C can be pressed against the abutting portion 25b of each one-side covering 23. A concave groove 27 for abutting and placing the core C along the length direction is formed at the tip of the abutting portion 25a. The concave groove 27 is formed with a side wall having a height difference, and one side wall communicating with the insertion opening 26 is formed with an inclined surface so that the core C can be easily inserted and removed, and the core C Is formed low so that it can be supported to the extent that it does not deviate from the concave groove 27. The other side wall on the closed end portion side is formed to be higher and steeper than the one side wall, and between the other end portion of the one-side cover body 23 and the common cover body between the inner surface of the one-side cover body 23. A relief portion 28 having a triangular cross section is formed so that the other end portion of 22 can abut. That is, the concave groove 27 is low on the insertion opening 26 side and high on the closed end side, and a substantially elliptical crimping space is formed between the contact portion of each one-side cover 23 at a substantially central position of the sleeve body 20. Will be formed.

  Each one-side covering body 23 is formed from the opening end portion of the inner surface beyond the central portion and from the closing end portion, a contact portion 25b having a substantially crescent-shaped cross section is formed along the axial direction, and the insertion opening portion 26 side is While being formed thick, the closed end portion side is formed thin. The reason for this is to hold the core C as close to the center as possible so that the core C does not come out from the insertion opening 26 side as described above.

  As shown in FIGS. 7A and 7B, the compression sleeve 30 has an octagonal outer shape, and an insertion hole 31 is formed in the central portion along the axial direction. The continuous surface 32 of the insertion hole 31 assumes that a small ellipse having a slightly long axis dimension is orthogonal to the large ellipse having a long axis dimension positioned in the vertical direction at an eccentric position. Has a deformed elliptical cross section in which is inscribed. In other words, the upper end side is slightly thin and has an egg-like cross section with a bulge toward the lower end side.

  In the continuous surface 32, the upper and lower circular arc surfaces inscribed by the large ellipse are formed so that the sleeve main body 20 in a slightly expanded state shown in FIG. 6 is formed so that the sleeve main body 20 in a state where the diameter of the sleeve is slightly expanded is gradually compressed, and the arc surface in which the small ellipse is inscribed is a compressed sleeve shown in FIG. The main body 20 is formed so as to be compressed and held. That is, the major axis dimension of the small ellipse is set slightly shorter than the major axis dimension of the large ellipse and slightly larger than the minor axis dimension of the large ellipse.

  In addition, an inner surface convex portion 33 is formed in a sawtooth shape along the circumferential surface of the arc surface in which the small ellipse is inscribed, and the sleeve body 20 is attached to the compression holder at the boundary portion between the small ellipse and the large ellipse. A right-angled triangle-shaped position restricting body 34 for preventing it from coming off 30 is projected.

  The compression holding means includes a sawtooth outer surface convex portion 24 formed along the arc surface of each one-side covering body 23 of the sleeve body 20, the inner surface convex portion 33, and the position restricting body 34 described above. And the outer surface convex part 24 has the latching | locking part 24a protrudingly provided by the substantially radial outward direction, and the inclination part 24b which inclines so that a parabola may be drawn along the rotation direction which compresses the sleeve main body 20 from this latching | locking part 24a. And are provided. On the other hand, the inner surface convex portion 33 engages with the locking portion 24a of the outer surface convex portion 24 to prevent the sleeve body 20 from rotating in the direction opposite to the compression direction, and the locking portion 33a to the sleeve. There is provided an inclined portion 33b formed so that the main body 20 is warped along the reverse direction. Further, the outer surface protrusions 24 and the inner surface protrusions 33 are alternately arranged so that the outer surface protrusions 24 can slide only in the rotational direction in which the sleeve body 20 is compressed with respect to the inner surface protrusions 33.

Next, the usage mode will be described. In First embodiment shaped on purpose Similarly, leave through the compression holder 30 to advance one of the wires A, as shown in FIG. 8 (b), is formed between the common coating 22 and the side cover 23 The core C is inserted into the insertion opening 26, and each one-side cover 23 is separated from the common cover 22 in the insertion hole 31 of the compression holder 30 as shown in FIGS. 8 (b) and 9 (b). The sleeve body 20 in the state is inserted and rotated in the compression direction (clockwise).

  At this time, the outer surface convex portion 24 slides on the inner surface convex portion 33, and each one-side covering body 23 separated by the arc surface of the insertion hole 31 of the compression holder 30 is pressed so as to be close to the common covering body 22. Thus, as shown in FIG. 8C, when each one-side covering 23 is positioned in the left-right direction, the core C is compressed to each contact portion 25a, 25b of each one-side covering 23 and the common covering 22 Will come to be. As shown in FIGS. 8C and 9B, the half-circumferential portion of the sleeve body 20 comes into contact with the arc surface of the insertion hole 31 of the compression holder 30, so that the compressed state of the sleeve body 20 is It will be retained. In addition, since the position restricting body 34 abuts the outer surface convex portion 24 in a compressed state, the sleeve body 20 does not come out of the compression holder 30 even when an axial tensile force is applied to the electric wire A.

In the case of the reference example 1 , the continuous surface 32 of the insertion hole 31 of the compression holder 30 is a deformed ellipse in which a large and small ellipse intersecting to form an inverted T shape is inscribed, as shown in FIG. In this way, the continuous surface 32 may be a deformed ellipse (an isosceles triangle or a right triangle with a rounded shape as a whole) inscribed by large and small ellipses that intersect to form an L shape. In short, it may be a continuous surface 32 that can insert the sleeve main body 20 in a state in which each one-side covering body 23 is separated and can compress each one-side covering body 23, and has an elliptical cross section as a basic shape.

( Reference Example 2 )
Next, a compression sleeve according to Reference Example 2 will be described with reference to FIGS. In addition, since the same sleeve main body 10 as FIG. 1 is used, only a compression holder is demonstrated.

  The compression holder 40 has an insertion hole 41 formed along the axial direction at the center thereof, and the continuous surface 42 has a barrel-shaped cross section that is inflated, and rectangular flat wall surfaces are formed vertically. In addition, a peripheral wall surface bulging in the left-right direction is formed. The distance between the left and right peripheral wall surfaces is set to be smaller than the distance between the upper and lower wall surfaces, and the sleeve body 1 in a state where each one-side covering body 4 is separated from the common covering body 3 with respect to the insertion hole 41. The sleeve main body 1 can be inserted in the vertical direction, and can be held in a compressed state by being rotationally moved from the vertical direction to the horizontal direction.

  Further, the circular wall surface is formed with a circular arc surface having a smaller curvature than the semicircle, and is inserted inside the insertion hole 41 by making the distance between the left and right peripheral walls smaller than the distance between the upper and lower wall surfaces. The sleeve body 1 can be compressed while being rotationally moved along the peripheral wall surface.

  Further, as the compression holding means of the sleeve main body 1, the insertion positions of the respective engaging portions 7 of the sleeve main body 1 are positioned at the opening ends on both sides of the insertion hole 41, and the sleeve main body 1 in the compressed state is compressed by the compression holder 40. An arc-shaped positioning body 43 is formed along the peripheral wall surface so as not to come out of the peripheral wall. In addition, position restricting bodies 44 and 45 are provided on the inner side of the positioning body 43 to prevent the sleeve body 1 in a compressed state from rotating backward from the compression position to the insertion position. The positioning body 43 and the position regulating bodies 44 and 45 form a fitting recess 46 into which each locking portion 7 of the sleeve body 1 is fitted, and the compressed state of the sleeve body 1 is maintained. .

  As shown in FIG. 11, the positioning body 43 is formed in a range of about 2/3 from the lower end side of the left peripheral wall to the upper side and from the upper end side to the lower side of the right peripheral wall. A vertical surface 43a with which the side surface of the locking portion 7 of the sleeve body 1 abuts is formed at each of the lower end portion and the upper end portion of the right positioning body 43, and the vertical surface 43a is a second position restricting body 45 described later. It is formed so as to be flush with the vertical surface 45a. Further, a flat surface is formed on the upper end portion of the left positioning body 43 and the lower end portion of the right positioning body 43 so as to be flush with a locking surface 44b of the first position restricting body 44 described later. Further, the thickness of the positioning body 43 in the radial direction is such that, even when the electric wire A is pulled by the tensile force in the axial direction, the positioning body 43 abuts against the end surface of each locking portion 7 of the sleeve body 1 in a compressed state. The thickness of the first and second position restrictors 44 and 45 is set to be the same as the thickness in the radial direction.

  As shown in FIG. 11, the position regulating bodies 44 and 45 are formed so as to protrude from the upper end portion of the left positioning body 43 and the lower end portion of the right positioning body 43 inside the positioning bodies 43 on both sides. It is comprised from the one position control body 44 and the 2nd position control body 45 formed so that the inner surface of the positioning body 43 of both sides may be met. The first position restricting body 44 has a substantially right triangle shape in cross section, and even when the corner portions of the respective locking portions 7 come into contact with each other when the sleeve body 1 is rotated from the insertion position to the compression position, the first position restricting body 44 reaches the fitting recess 46. A gentle arc-shaped inclined surface 44a is formed on one side surface so that it can be smoothly rotated and moved, while each locking portion 7 is locked on the other side surface so that it does not rotate from the compression position to the insertion position. A flat locking surface 44b is formed in contact with one end surface of the portion 7 to prevent the rotational movement of each locking portion 7. The second position restricting body 45 has a fan-shaped cross section formed along the circular arc surface from the vertical surface 43a of the positioning body 43, abuts against the other end face of each locking portion 7, and each locking portion 7 A flat locking surface 45a is formed to prevent the rotational movement.

  Next, the usage mode will be described. As shown in FIGS. 12B and 13, the sleeve body 1 is brought into an upright state, and the side surface of the locking portion 7 of each one-side covering body 4 is brought into contact with the vertical surface 43 a of the positioning body 43, so Insert into the insertion hole 41. Next, when it is slightly rotated from this insertion position and inclined, the respective locking portions 7 of the sleeve main body 1 positioned on the long axis are positioned on the diagonal line of the insertion hole 41. At this time, each locking portion 7 straddles the flat surface and the peripheral wall surface of the insertion hole 41, is pressed by both the flat surface and the peripheral wall surface of the insertion hole 41, and the sleeve body 1 starts to be compressed, Each contact part 5a, 5b of the sleeve body 1 begins to bite into the core C.

  Further, when the sleeve body 1 in an oblique state is rotated toward the central portion (short axis) side of the peripheral wall of the compression holder 40, each engaging portion 7 of the sleeve body 1 moves to the left and right peripheral wall surfaces. The distance between the locking portions 7 is gradually shortened, the sleeve body 1 is gradually compressed, and the contact portions 5a and 5b gradually bite into the core C.

  Then, as shown in FIG. 12C, when the locking portions 7 of the sleeve body 1 are positioned on the short axis, the distance between the locking portions 7 is the smallest, and the sleeve body 1 is reliably compressed. At the same time, the contact portions 5a and 5b surely bite into the core C and the compression is completed. That is, the sleeve body 1 can be reliably compressed simply by rotating the sleeve body 1 inserted into the compression holder 40.

( Reference Example 3 )
Next, the compression sleeve of Reference Example 3 will be described with reference to FIGS. 14 and 15. The compression sleeve includes a sleeve main body 50 including a pair of upper and lower flange-shaped covering bodies 51 that are connected to and separated from each other like a beak by connecting the distal ends thereof, and a compression holder 60 that compresses the sleeve main body 50. It consists of and.

  As shown in FIG. 14 (a), each covering 51 has a sawtooth shape on the outer surface, and the outer surface has an outer surface convex portion 52 formed by half-cutting a truncated cone. It is connected in the axial direction. Further, a C-shaped position restricting body 53 is formed along the half circumferential surface of the base end portion. Then, in the joined state, as shown in FIG. 14 (b), each covering 51 is joined with the half-protruded outer surface protrusions 52, and the truncated cone-shaped cones are continuously provided in the axial direction. The C-shaped position restricting bodies 53 are joined together to form an annular collar. A contact portion 54 that contacts the core C is formed on the inner surface of each covering 51.

  As shown in FIG. 15B, the reason for forming the annular flange is that the annular surface of the flange located on the distal end side of the sleeve body 50 is brought into contact with the end surface of the flange 62 of the compression holder 60 described later. This is because the insertion position of the sleeve main body 50 with the core C held between the compression holders 60 is surely restricted by the contact.

  The reason why the outer surface convex portion 52 is formed in a circular truncated cone shape is that the resistance of the sleeve body 50 is small in the insertion direction, and the core C is not damaged when the divided covering 51 is joined. It is desirable to gradually apply pressure to each abutment portion 54 in order to pinch, and in order to satisfy these conditions, a tapered surface that increases in diameter from the distal end side toward the proximal end side effectively acts. Because it does. Further, in order to prevent the sleeve main body 50 from coming off the compression holder 60 against the axial tensile force from the outside related to the electric wire A, the compression holder 60 and the sleeve main body 50 need to be engaged. An annular surface (locking surface) formed along an end edge of the taper surface on the enlarged diameter side, and a projection having a right triangle formed by the tapered surface and the annular surface (locking portion) This is because of effective. Then, by connecting the outer surface convex portions 52 having the same shape along the axial direction, pressure can be applied to each contact portion 54 substantially uniformly, and the entire core C is formed by each contact portion 54. While being securely clamped, the engagement between the inner surface concave portion 63 of the compression holder 60 and the outer surface convex portion 52 of the sleeve main body 50 and the contact of the flange portion of the sleeve main body 50 with the flange 62 of the compression holder 60 Thus, the sleeve body 50 is prevented from coming off from the compression holder 60 reliably and firmly.

  As shown in FIG. 15 (a), the compression holder 60 has a cylindrical shape, and on both sides thereof, insertion holes 61 into which circular cones corresponding to the outer shape of the sleeve body 50 can be inserted are formed. Flange 62 is projected from both ends. As a continuous surface of the insertion hole 61, a sawtooth-shaped inner surface recess 63 formed corresponding to the outer shape of the sleeve main body 50 is formed.

  Next, the usage mode will be described. First, each covering 51 is opened, and the core wire is inserted so as to be positioned between the upper and lower contact portions 53, and each covering 51 is closed. Then, the flange portion of the sleeve body 50 in a state where each covering 51 is closed is brought into contact with the flange 62 of the compression holder 60 using a tool such as pliers or pliers, and the insertion into the insertion hole 61 is completed. At this time, the outer surface convex portions 52 of the respective covering bodies 51 are closed so that the outer shape of the sleeve main body 50 has a sawtooth shape, and is engaged with the inner surface concave portion 63 of the insertion hole 61 to be compressed and held.

In the case of the reference example 3 , the flange 62 of the compression holder 60 and the flange portion of the sleeve main body 50 are brought into contact with a tool such as pliers or pliers, but are fastened by a fastening member having a thread groove. May be. Such a compression sleeve is described below.

( Reference Example 4 )
Since the compression sleeve according to the reference example 4 is substantially the same as the compression sleeve of the reference example 3 , only different points will be described with reference to FIGS. 16 and 17.
Although the sleeve main body 50 is not shown in the figure, the configuration is substantially the same as in FIG. 14, a male screw is formed on the position restricting body 53, the compression holder 60 has substantially the same lattice pattern as in FIG. 15, and the outer shape has a hexagonal shape. The difference is that male threads 64 are formed at both ends.

  Then, the sleeve body 50 and the compression holder 60 are connected and fixed by a fastening member 70 made of a hexagonal female screw (nut) that is screwed into the male screw of the sleeve main body 50 shown in FIG. Thereby, the compression holding of the sleeve main body 50 in the compression holder 60 and the prevention of the removal from the compression holder 60 are reliably realized.

Next, the usage mode will be described. The fastening member 70 is inserted in advance into each electric wire A to be connected, and the core C of each electric wire A is compressed by each covering body 51 of the sleeve main body 50. Since this compression method is the same as in Reference Example 3 described above, description thereof is omitted. Then, after the core C is compressed by each covering body 51, the sleeve body 50 and the compression holder 60 are connected and fixed by the fastening member 70 after being inserted into the insertion hole 61 of the compression holder 70.

( Reference Example 5 )
Next, the compression sleeve of Reference Example 5 will be described with reference to FIGS.
As shown in FIGS. 18 (A) to 18 (C) and FIG. 19, the compression sleeve includes a pair of upper and lower hook-shaped coverings 81 that are connected to and separated from each other like a beak. A sleeve body 80 constituting a male screw in a state in which each covering body 81 is closed, a female screw 91 formed on both the left and right sides and screwed into the male screw of the sleeve main body 80, and a bulge formed in the center. And a compression holder 90 having a hexagonal holding portion 92.

  A pair of sleeve main bodies 80 shown in FIGS. 18 (a) to 18 (c) are formed with male threads on their outer peripheral surfaces so as to be opposite to each other, and have a holding groove 82 for temporary compression with a tool. It is formed along the length direction of the outer peripheral surface. Furthermore, the contact part 83 formed in the circular arc shape along the inner peripheral surface is provided to project along the length direction of the covering 81 at a predetermined interval.

  Next, a usage mode will be described with reference to FIGS. First, as shown in FIG. 20 (a), the electric wire A is arranged on the side of the sleeve body 80 where male threads in opposite directions are formed so as to abut each other's core C. Next, as shown in FIG. 20B, each covering body 81 of the sleeve main body 80 is opened, and the core C is inserted between the upper and lower covering bodies 81. Then, as shown in FIG. 20C, each covering 81 is closed and the core C is compressed by the contact portion 83, and a male screw is formed.

  Subsequently, as shown in FIGS. 21 (a) and 21 (b), the sleeve main body 80 constituting the male screw is inserted into the insertion holes 91 on both sides of the compression holder 90, and as shown in FIG. When the grip portion 92 of the compression holder 90 is rotated in the clockwise direction, each sleeve body 80 is screwed into the insertion hole 91 of the compression holder 90 and is brought into abutment. That is, the electric wires A on both sides are electrically connected in a straight line state. At this time, the compression body 90 prevents the sleeve body 80 from being compressed and prevented from coming off.

( Reference Example 6 )
Next, the compression sleeve of Reference Example 6 will be described with reference to FIGS.
The compression sleeve includes a substantially S-shaped sleeve body 200 and a compression holder 100 having an insertion hole 101 into which the sleeve body 200 can be inserted and removed.

The sleeve main body 200 has substantially the same configuration as the sleeve main body 20 (see FIG. 6) of Reference Example 1 described above. The difference is that as shown in FIGS. The outer shape of the body 203 has a pentagonal shape and has an octagonal shape in a state in which each one-side covering 203 is closed, and bolts 105 to be described later are engaged with upper and lower side wall portions (flat portions) of each one-side covering 203. The engaging recess 205 is formed at a predetermined interval.

As in the first reference example , the covering portion 201 is composed of a flat common covering body 202 and upper and lower one-side covering bodies 203, and contact portions 204 a are formed on both surfaces of the common covering body 202. In addition, an abutting portion 204b is formed on the inner surface of the one-side cover 203, and an insertion opening 206 for inserting the core C is formed between the common cover 202 and the one-side cover 203. Yes.

  As shown in FIGS. 23 (a) and 23 (b), the compression holder 100 has an octagonal cross section, an insertion hole 101 is formed, and the upper side wall (flat portion) has a length. Screw holes 102 are formed at substantially equal intervals along the direction, and bolts 105 as engaging members are screwed into the respective screw holes 103, and the tip portions of the respective bolts 105 are led out into the insertion holes 101 and inserted. It engages with the locking recess of the sleeve body 200. A plurality of protrusions 104 are formed on the inner surface of the lower portion of the compression holder 100 so as to protrude at positions corresponding to the screw holes 103. The protrusion 104 engages with a locking recess 205 on the lower side of the sleeve body 200.

  Next, a usage mode will be described with reference to FIGS. The compression holder 100 is inserted into one of the electric wires A in advance, and as shown in FIG. 24 (a), each one-side covering 203 of the sleeve body 200 is opened, and the cores C are in different directions. Insert from. Next, as shown in FIG. 24 (b), each one-side covering 203 is temporarily compressed using a tool, and temporarily compressed into the insertion hole 101 of the compression holder 100 as shown in FIG. 24 (c). The sleeve body 200 is inserted. At this time, the lower protrusion of the compression holder 100 is engaged with the lower locking recess 205 of the sleeve body 200. Finally, as shown in FIG. 24 (d), the bolts 105 are screwed in and engaged with the locking recesses 205 on the upper side of the sleeve body 200, and the one-side coverings 203 are pressed to perform main compression. As a result, the compression and holding of the sleeve main body 200 and prevention of removal are achieved.

In the case of the reference example 6, each one-side covering 203 of the sleeve body 200 is pentagonal, but it may be circular or non-circular (triangular, square, etc.). In short, the core wire C can be covered. Any shape is acceptable. Further, although the bolt 105 is used as the engaging member, the present invention is not limited to this. For example, as shown in FIG. 28, with a spring that holds the engagement state of the sleeve main body 200 with the locking recess 205. It may be a lock pin 106 in which the biased locking piece 107 is provided so as to be retractable.

( Reference Example 7 )
Next, the compression sleeve of Reference Example 7 will be described with reference to FIGS.
The compression sleeve is composed of a substantially cylindrical sleeve main body 300 and a pair of compression holders 400 that are in contact with the core wire C drawn into the sleeve main body 300 and press-fitted into the inside.

  As shown in FIG. 25A, the sleeve main body 300 has a cylindrical shape, and a through-hole 301 having a semicircular cross section is formed in the upper and lower portions, and a flat partition wall is formed between the through-holes 301. A portion 302 is formed. An inner surface recess 303 corresponding to a sawtooth outer surface of the compression holder 400 described later is formed on the peripheral wall of the through hole 301. Each through hole 301 allows the electric wire A to be inserted / removed, the insulating coating B of the electric wire A is led out from one opening end, and the core C of the electric wire A goes from the other opening end to the outside. Has been derived.

  As shown in FIG. 25B, the compression holder 400 has an outer surface formed with a sawtooth-shaped outer surface convex portion 400a along the length direction, and an inclined portion 401 is formed on the inner surface side of the tip portion. In addition, a flat portion 402 is formed on the inner surface excluding the inclined portion 401, and a plurality of abutting portions 403 are formed at predetermined intervals on the inclined portion 401 and the flat portion 402, and in addition, a base end portion A semicircular collar 404 is projected from the top.

  Next, a usage mode will be described with reference to FIG. First, as shown in FIG. 26 (a), the electric wire A is inserted into the through hole 301 of the sleeve body 300, the core C of the electric wire A is led out from one opening end, and from the other opening end. The insulation coating B of the wire A is derived. Then, in a state where the contact portion 403 of the sleeve main body 300 is in contact with the lead core C, the compression holder 400 is pulled out of the sleeve main body 300 while the electric wire A is pulled out in a direction opposite to the press-fitting direction of the sleeve main body 300. Press fit into the through hole 301. At this time, as shown in FIG. 25B, the serrated outer surface convex portion 400a of the compression holder 400 is engaged with the inner surface concave portion 303a of the sleeve main body 300, and the core C is a contact portion 403 of the compression holder 400. And compressed by the flat partition wall 302 of the sleeve body 300. In other words, the core C is compressed and held and the core C is prevented from coming off inside the sleeve body 300.

(Other embodiments)
The present invention is not limited to the above you施形state, and various modifications are possible without departing from the scope of the present invention. For example, as shown in FIG. 27 (a), a sleeve main body 500 having a pair of one-side covering bodies 501 such that the overall shape when joined can exhibit a truncated cone may be used. The sleeve body 600 may have a pair of one-side covering bodies 601 such that the overall shape when joined is a cylindrical body. That is, the sleeve main body is in an expanded state because the inserted core C is compressed by the contact portion. Therefore, if the compression holders 502 and 602 are formed with insertion holes having substantially the same diameter as the outer shape of the sleeve main bodies 500 and 600, the sleeve main bodies 500 and 600 can be sufficiently compressed.

(B) is a front view of the sleeve body of the compression sleeve according to the embodiment forms state of the present invention, (b) is a side view, a front view of a state (c) is compressed. (A) is a front view of a compression holder, (b) is a side view. (A) is a side view in which the core wire of the electric wire is about to be inserted into the sleeve body, (B) is a side view in a state where the core wire is inserted into the sleeve body, and (C) is a side view in a temporarily compressed state. It is. (A) is a front view of the temporarily compressed sleeve body inserted into the compression holder, (b) is a front view of the inserted sleeve body being rotated and fully compressed. ) Is a front view showing a state where the sleeve body is compressed and held. FIG. 5 is a side view of FIG. (A) is a front view of the sleeve main body according to Reference Example 1 , (B) is a front view showing the sleeve main body in a compressed state, and (C) is a side view of FIG. 6 (A). (A) is the front view which showed the compression holder which concerns on the reference example 1 of this invention, (b) is a side view. (A) is a front view showing a sleeve main body into which a core wire is inserted, (b) is a front view showing a state in which the sleeve main body is inserted into a compression holder, and (c) is a state in which the sleeve main body is compressed and held. It is the front view which showed. (A) is a side view of FIG. 8 (B), and (B) is a side view of FIG. 8 (C). (A) is a front view of the compression holder which concerns on the reference example 2 , (b) is a side view of FIG. 10 (a). It is the perspective view which showed the compression holder of FIG. (A) is a front view showing the sleeve body with the core wire inserted, (b) is a front view showing the sleeve body inserted into the compression holder, and (c) is a state where the sleeve body is compressed and held. It is the front view which showed the state which exists. FIG. 13 is a side view of FIG. (A) is the side view which showed the sleeve main body of the open state in the compression sleeve which concerns on the reference example 3 of this invention, (b) is the side view of the sleeve main body of the closed state. (A) is the side view which showed the compression holder which concerns on the reference example 3 of this invention, (b) is a sectional side view of the state which inserted the sleeve main body in the compression holder. (A) is a side view showing a compression holder and a fastening member according to Reference Example 4 of the present invention, and (B) is a state in which the sleeve main body and the compression holder are fastened with a fastening member by inserting the sleeve main body into the compression holder. It is the side view shown. It is a front view of a fastening member. (A) is a side view showing a sleeve body in an open state in a compression sleeve according to Reference Example 5 of the present invention, (b) is a side view showing a sleeve body in a closed state, and (c) is FIG. It is a top view of (b). It is the side view which showed the compression holder. (A) is a side view showing a state where a core wire is about to be inserted into the sleeve body, (B) is a view showing a state where the core wire is compressed into the sleeve body, and (C) is a state where the core wire is inserted into the sleeve body. It is the figure which showed the state compressed. (A) is a side view showing a state where the sleeve body is about to be inserted into the compression holder, (B) is a view showing a state where the sleeve body is inserted into the compression holder, and (C) is a state where the sleeve body is in the compression holder. It is the side view which showed the state currently compressed and held. (A) is a side view showing the open state of the sleeve body of the compression sleeve according to Reference Example 6 of the present invention, (B) is a side view showing the sleeve body in the closed state, and (C) is FIG. (B) is a plan view. (A) is the front view which showed the compression holder, (b) is a side view. (A) is a front view showing a state in which the core wire is inserted into the sleeve body, (B) is a front view showing a state in which the core wire is temporarily compressed, and (C) is a state in which the sleeve body is inserted into the compression holder. The side view which showed the state which carried out, (d) is the front view which showed the state by which the sleeve main body is compressed and held by the engaging member which penetrated the compression holder. (A) is the side view which showed the sleeve main body of the compression sleeve which concerns on the reference example 7 of this invention, (b) is the side view of a sleeve main body. (A) is a side sectional view showing a state in which the compression holder is press-fitted into the core wire inserted into the sleeve body, and (B) is a side sectional view showing a state in which the core wire is compressed by the compression holder in the sleeve body. FIG. (A)-(e) is the figure which showed the other modification. It is the figure which showed the modification of the engagement means.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Sleeve main body, 2 ... Covering part, 3 ... Common covering body, 4 ... Single-sided covering body, 5a, 5b ... Contact part, 6 ... Connection part, 6a ... Bending part, 7 ... Locking part, 8 ... Insertion Opening portion, 10 ... sleeve body, 10 ... compression holder, 11 ... insertion hole, 12 ... continuous surface, 13 ... engagement groove, 20 ... sleeve body, 22 ... common covering, 23 ... one-side covering, 24 ... convex on the outer surface Part 24a ... locking part 24b ... inclined part 25a and 25b ... contact part 26 ... insertion opening 27 ... concave groove 30 ... compression sleeve 30 ... compression holder 31 ... insertion hole 32 ... continuous Surface, 33 ... convex portion on inner surface, 33a ... locking portion, 33b ... inclined portion, 34 ... position restricting body, 40 ... compression holder, 41 ... insertion hole, 42 ... continuous surface, 43 ... positioning body, 43a ... vertical surface, 44 ... first position restricting body, 44a ... inclined surface, 44b ... locking surface, 45 ... second position restricting body, 45 ... Vertical surface, 45a Locking surface, 46 ... Fitting recess, 50 ... Sleeve body, 51 ... Cover body, 52 ... Outer surface convex part, 53 ... Position restrictor, 53 ... Contact part, 54 ... Contact part, 54 DESCRIPTION OF SYMBOLS ... Contact part, 60 ... Compression holder, 61 ... Insertion hole, 62 ... Flange, 63 ... Inner surface recessed part, 70 ... Compression holder, 80 ... Sleeve body, 81 ... Covering body, 82 ... Gripping groove, 83 ... Contact part , 90 ... Compression holder, 91 ... Insertion hole, 92 ... Holding part, 100 ... Compression holder, 101 ... Insertion hole, 102 ... Screw hole, 104 ... Projection, 105 ... Bolt, 106 ... Lock pin, 107 ... Locking piece, DESCRIPTION OF SYMBOLS 200 ... Sleeve main body, 201 ... Cover part, 202 ... Common cover body, 203 ... One side cover body, 204a ... Contact part, 204b ... Contact part, 205 ... Locking recessed part, 206 ... Insertion opening part, 300 ... Sleeve main body 301 through hole 301 through , 302 ... partition wall part, 303 ... locking inner surface recessed part, 303 ... inner surface recessed part, 400 ... compression holder, 401 ... inclined part, 402 ... flat part, 403 ... abutting part, 404 ... collar part, 500 ... leave main body, 500 , 600 ... Sleeve body, 501 ... One side covering, 502, 602 ... Compression holder, 600 ... Sleeve body, 601 ... One side covering, A ... Electric wire, B ... Insulation covering, C ... Core wire

Claims (4)

In the compression sleeve that compresses and connects the core wires (C) of the plurality of electric wires (A) from which the insulation coating (B) has been peeled off, the core wires (C) to be inserted when joined are joined. Each cylindrical body is formed on a contact surface of a plurality of contactable and disengageable covering portions (2) arranged so as to form a substantially covering cylindrical body, and a covering portion (2) contacting the core wire (C). A sleeve body (1) having an abutting portion (5a, 5b) that abuts against the core wire inserted into the cylinder and slightly expands the diameter of the cylinder, and a cylinder that is slightly expanded in diameter, A compression holder provided with an insertion hole (11) in which a continuous surface (12) that can be gradually compressed and held in a substantially cylindrical body is formed as it is inserted in the axial direction or rotated in the circumferential direction. (10) and the compression state of the sleeve body (1) by the compression holder (10) In so that it can hold, is composed of a compression holding means provided in the sleeve body (1) and the compression holder (10),
The continuous surface (12) has an elliptical cross-section, and the arc surface on which the end of the major axis is located is formed so that a cylindrical body with a slightly expanded diameter can be inserted, from the major axis to the minor axis. The circular arc surface is formed so as to be able to gradually compress the cylindrical body having a slightly expanded diameter, and the circular arc surface on which the end of the short axis is positioned can compress and hold the gradually compressed cylindrical body in the substantially cylindrical body. A compression sleeve characterized by being formed .   The said covering part (2) opposes each contact part (5a) of the flat covering common cover (3) with which the said contact part (5a) is provided in both surfaces, and this common cover (3). As described above, the abutting portion (5b) is provided on the inner surface of the common covering (3), so that the core wire (C) can be held between the abutting portions (5a, 5b), or 2. The skirt-shaped one-side covering body (4) connected to both surfaces of the one-side end portion so as to be able to contact and separate from the common covering body (3). The compression sleeve described. The covering portion (2) is provided on both surfaces of the flat common covering body (3) on which the contact portion (5a) is provided on both surfaces and one end portion of the common covering body (3). And a contact portion (5b) facing each contact portion (5a) of the common cover (3), and one end portion of each other is connected to each connection portion (5). The compression sleeve according to claim 1 or 2 , comprising a pair of one-side covering bodies (4) connected to the common covering body (3) via 6). The compression holding means includes a locking portion (7) formed along the axial direction on the outer surface of each one-side covering body (4) and a continuous surface (12) of the insertion hole (11). 4) It is formed in the position which can hold compression, and it is comprised by the engagement groove | channel (13) with which this latching | locking part (7) engages. The compression sleeve described.

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