JP2011171098A - Electric wire with protection member and method of manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate bending and deforming of an electric wire partially, when protecting and route-regulating the electric wire, using a nonwoven fabric in at least one part. <P>SOLUTION: The electric wire includes an electric wire bundle 12, a nonwoven fabric protection part 24 and a cylindrical protection part 30. The nonwoven fabric protection part 24 is formed by hot press under the state where the nonwoven fabric covers the electric wire bundle 12. The cylindrical protection part 30 is formed into a cylindrical shape capable of inserting the electric wire bundle 12, and bendable more easily compared with the nonwoven fabric protection part 24, and is connected to the nonwoven fabric protection part 24 under the state inserted with the electric wire bundle 12. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a technique for protecting an electric wire provided in a vehicle or the like.

  A technique related to a protector for protecting a wire harness is disclosed in Patent Document 1. In Patent Document 1, a flat circuit body is sandwiched between two coverings made of a non-woven thermoplastic resin material. And the protector which protects a flat circuit body is formed by press-molding those covering bodies, and making the covering body contact | adhere to a flat circuit body, and welding the location where two coating bodies contact | connect.

Japanese Patent Laid-Open No. 2003-197038

  However, in the technique disclosed in Patent Document 1, since the entire two coverings made of a nonwoven thermoplastic resin material are press-molded, the entire portion of the wire harness that is protected by the protector is in the form during press molding. It will be kept. For this reason, it becomes difficult to deform | transform a wire harness freely according to the space etc. of the attachment destination of a wire harness.

  Therefore, an object of the present invention is to make it possible to easily bend and deform a part of an electric wire when the electric wire is protected and route-regulated using a nonwoven fabric at least in part.

  In order to solve the above-described problem, the electric wire with a protective member according to the first aspect includes an electric wire, a non-woven fabric protective portion formed by hot pressing with the non-woven fabric covering the electric wire, and the electric wire inserted therethrough. And a cylindrical protection part that is formed in a cylindrical shape that is easier to bend than the nonwoven fabric protection part and is connected to the nonwoven fabric protection part in a state in which the electric wire is inserted.

  A 2nd aspect is an electric wire with a protection member concerning the 1st aspect, and a part of the nonwoven fabric covers the end of the cylindrical protection part, and when the nonwoven fabric is hot pressed, The said nonwoven fabric protection part and the said cylindrical protection part are connected.

  A 3rd aspect is an electric wire with a protection member which concerns on a 2nd aspect, Comprising: The said nonwoven fabric protection part is provided in the both ends of the said cylindrical protection part.

  A 4th aspect is an electric wire with a protection member which concerns on a 1st aspect, Comprising: The said cylindrical protection part is pinched | interposed between a pair of said nonwoven fabric protection parts, The said nonwoven fabric protection part and the said cylindrical shape The protection part is connected.

  A 5th aspect is a manufacturing method of the electric wire with a protection member which covers and protects an electric wire, (a) The process which penetrates an electric wire in a cylindrical protection part, (b) The state which covered the electric wire with the nonwoven fabric And hot-pressing the non-woven fabric to form a non-woven fabric protective portion connected to the cylindrical protective portion.

  According to the first aspect, the wire is partially easily bent at the part of the cylindrical protection part connected to the nonwoven fabric protection part while at least partly protecting and regulating the wire by the nonwoven protection part. Can be deformed.

  According to the electric wire with a protective member according to the second aspect, the connection form of the non-woven fabric protective part and the cylindrical protective part can be more reliably maintained, and the electric wire can be more reliably protected.

  According to the electric wire with a protective member according to the third aspect, the path can be restricted by the non-woven fabric protective portion at both ends of the cylindrical protective portion.

  According to the electric wire with a protective member according to the fourth aspect, the non-woven fabric protective part and the cylindrical protective part can be connected without the work of covering the cylindrical protective part with the nonwoven fabric.

  According to the fifth aspect, the wire is partially easily bent at the part of the cylindrical protection part connected to the nonwoven fabric protection part while at least partially protecting and routing the electric wire with the nonwoven protection part. Can be deformed.

It is a schematic perspective view which shows the electric wire with a protection member which concerns on embodiment. It is a schematic side view which shows an electric wire with a protection member same as the above. It is the schematic which shows the use condition of an electric wire with a protection member same as the above. It is a schematic side view which shows the electric wire with a protection member which concerns on a modification. It is a schematic perspective view which shows the example of the shaping | molding die for hot press for manufacturing the electric wire with a protection member. It is explanatory drawing which shows the manufacturing process of the protection member for electric wires using the shaping | molding die for hot presses same as the above. It is explanatory drawing which shows the manufacturing process of the protection member for electric wires using the shaping | molding die for hot presses same as the above. It is explanatory drawing which shows the manufacturing process of the protection member for electric wires using the shaping | molding die for hot presses same as the above. It is explanatory drawing which shows the manufacturing process of the protection member for electric wires using the shaping | molding die for hot presses same as the above. It is a schematic perspective view which shows the shaping | molding die for hot press concerning another example. It is explanatory drawing which shows the manufacturing process of the protection member for electric wires using the shaping | molding die for hot presses same as the above. It is explanatory drawing which shows the manufacturing process of the protection member for electric wires using the shaping | molding die for hot presses same as the above. It is explanatory drawing which shows the manufacturing process of the protection member for electric wires using the shaping | molding die for hot presses same as the above. It is explanatory drawing which shows the manufacturing process of the protection member for electric wires using the shaping | molding die for hot presses same as the above.

<Wire with protective member>
Hereinafter, the electric wire with a protective member according to the embodiment will be described. FIG. 1 is a schematic perspective view showing the electric wire 20 with a protective member, FIG. 2 is a schematic side view showing the electric wire 20 with a protective member, and FIG. 3 is a schematic view showing a usage state of the electric wire 20 with the protective member.

  The electric wire 20 with a protective member includes an electric wire bundle 12 and a protective member 22 that covers and protects the electric wire bundle 12. As the electric wire bundle 12, what constitutes a wire harness for interconnecting various electric devices in a vehicle or the like is assumed. However, the protection target may be a wire bundle 12 in which a plurality of wires 10 are bundled, or a single wire.

  The protection member 22 includes a nonwoven fabric protection part 24 and a cylindrical protection part 30. Here, the two nonwoven fabric protection parts 24 are provided so as to cover the wire bundle 12 with a space therebetween, and the cylindrical protection part 30 is provided therebetween. However, at least one non-woven fabric protective portion and one cylindrical protective portion may be provided.

  The nonwoven fabric protection part 24 is formed by hot pressing with the nonwoven fabric covering the wire bundle 12.

  As a nonwoven fabric, the nonwoven fabric which can be hardened by passing through a heating process can be used. As such a non-woven fabric, a material containing intertwined basic fibers and an adhesive resin (also called a binder) can be used. The adhesive resin is a resin having a melting point (for example, 110 ° C. to 115 ° C.) lower than the melting point of the basic fiber. Then, by heating the nonwoven fabric to a processing temperature lower than the melting point of the basic fiber and higher than the melting point of the adhesive resin, the adhesive resin melts and soaks between the basic fibers. Thereafter, when the nonwoven fabric has a temperature lower than the melting point of the adhesive resin, the adhesive resin is solidified in a state where the basic fibers are bonded to each other. As a result, the nonwoven fabric becomes harder than the state before heating and is maintained in the molded shape during heating.

  The adhesive resin may be granular or fibrous. An adhesive resin layer may be formed on the outer periphery of the core fiber to form a binder fiber, which may be entangled with the basic fiber. As the core fiber in this case, the same material as the basic fiber can be used.

  As said basic fiber, what is necessary is just to be able to maintain a fiber state with melting | fusing point of adhesive resin, and various fibers other than a resin fiber can be used. As the adhesive resin, thermoplastic resin fibers having a melting point lower than that of the basic fiber can be used. Examples of the combination of the basic fiber and the adhesive resin include an example in which the basic fiber is a resin fiber of PET (polyethylene terephthalate) and the adhesive resin is a copolymer resin of PET and PEI (polyethylene isophthalate). In this case, the melting point of the basic fiber is approximately 250 ° C., and the melting point of the adhesive resin is 110 ° C. to 150 ° C. For this reason, when the nonwoven fabric is heated to a temperature of 110 ° C. to 250 ° C., the adhesive resin is melted and soaked between the basic fibers that keep the fiber shape without melting. And when a nonwoven fabric becomes temperature lower than melting | fusing point of adhesive resin, adhesive resin solidifies in the state which couple | bonded basic fibers, a nonwoven fabric becomes hard, and the shaping | molding shape at the time of a heating is maintained.

  Hot press refers to molding a nonwoven fabric by sandwiching a nonwoven fabric, which is an object to be processed, between molds and applying pressure to the mold in a heated state. A more specific example of hot pressing suitable for forming the nonwoven fabric protection part 24 will be described in detail later.

  Here, the nonwoven fabric protective part 24 is formed by hot pressing the nonwoven fabric with the electric wire bundle 12 sandwiched between the two nonwoven fabrics. For this reason, the inner peripheral surface of the nonwoven fabric protection part 24 is in close contact with the wire bundle 12. Moreover, in the both sides of the electric wire bundle 12, the edge parts of two nonwoven fabrics are mutually joined by the heating and compression action of a hot press, and the joining edge part 25 is formed. The joining edge part 25 plays the role which maintains the state which the nonwoven fabric protection part 24 covered the electric wire bundle 12. FIG.

  But you may form the nonwoven fabric protection part 24 by hot-pressing so that the electric wire bundle 12 may be covered with one nonwoven fabric.

  Here, the non-woven fabric protective portion 24 is formed in a hexagonal cross section (here, a slightly flat hexagonal cross section) on a surface substantially orthogonal to the extending direction of the wire bundle 12. The cross-sectional shape of the nonwoven fabric protection part may be a polygonal shape such as a circular shape, a triangular shape, or a rectangular shape. Moreover, different cross-sectional shapes may be sufficient along the longitudinal direction of the wire bundle.

  Thus, the nonwoven fabric protection part 24 by which the nonwoven fabric was hot-pressed has the hardness which can maintain the wire bundle 12 in a fixed shape. Here, the nonwoven fabric protection part 24 has a shape extending linearly, and is configured to be able to maintain the wire bundle 12 in a linear shape. However, the non-woven fabric protective part does not necessarily have to be linear, and is bent in an arc or at an angle, and regulates the path of the wire bundle 12 in an arc or an angle. There may be.

  The cylindrical protection part 30 is formed of a resin or the like, and is formed in a cylindrical shape that allows the wire bundle 12 to be inserted and is easier to bend than the nonwoven fabric protection part 24. Here, a corrugated tube is used as the cylindrical protection part 30. A corrugated tube is a tube in which annular convex portions and annular concave portions are alternately formed in the longitudinal direction, or the convex portions are spirally formed so that the cross-sectional shape of the tube wall in the longitudinal direction is a wave shape. is there. Such a corrugated tube has the property of being easily bent as a whole because the tube wall having a cross-sectional wave shape in the longitudinal direction expands and contracts relatively easily. But as a cylindrical protection part, the tube formed with materials with easy deformation | transformation, such as rubber | gum other than a corrugated tube, may be sufficient. In short, the cylindrical protection part may be a cylindrical member that is easier to bend than the nonwoven fabric protection part 24.

  Moreover, the cylindrical protection part 30 is comprised so that the electric wire bundle 12 used as protection object can be penetrated inside. The internal diameter of the cylindrical protection part 30 is set according to the outer diameter of the electric wire or electric wire bundle used as protection object.

  The cylindrical protection part 30 is disposed between the two nonwoven fabric protection parts 24. In other words, the two nonwoven fabric protection parts 24 are provided at both ends of the cylindrical protection part 30. And the both ends of the cylindrical protection part 30 are each connected with the nonwoven fabric protection part 24 in the state by which the wire bundle 12 was penetrated in the cylindrical protection part 30.

  Here, the cylindrical protection part 30 and the nonwoven fabric protection part 24 are connected by the following structure.

  That is, the electric wire bundle 12 is inserted into the cylindrical protection part 30, and the nonwoven fabric is hot pressed in a state of covering the end of the cylindrical protection part 30 and the electric wire bundle 12. Thereby, the nonwoven fabric protection part 24 is processed and molded so as to be in close contact with the end surface of the cylindrical protection part 30, and the nonwoven fabric protection part 24 and the cylindrical protection part 30 are integrally connected by this configuration. Yes. In particular, when a corrugated tube is used as the cylindrical protection part 30, the nonwoven fabric protection part 24 is in close contact with the concavo-convex surface of the corrugated tube, so the connection state between the nonwoven fabric protection part 24 and the cylindrical protection part 30 is more reliably maintained. Is done.

  When laying the electric wire 20 with a protective member on a vehicle or the like, the electric wire bundle is bent along the installation space S between the vehicle body and the vehicle-mounted components by bending the electric wire bundle 12 at the cylindrical protective portion 30 portion. 12 can be arranged (see FIG. 3). In this state, the portion of the wire bundle 12 covered by the protective member 22 including the non-woven fabric protective portion 24 and the cylindrical protective portion 30 is prevented from being in contact with other portions by the protective member 22. Protected. Moreover, the part covered with the nonwoven fabric protection part 24 among the wire bundles 12 is maintained in a certain form according to the form of the nonwoven fabric protection part 24.

  According to the electric wire 20 with a protective member configured as described above, the electric wire bundle 12 can be protected by the protective member 22 partially using a nonwoven fabric. And about the part covered with the nonwoven fabric protection part 24 among the electric wire bundles 12, it is possible to restrict the path so that the electric wire bundle 12 is maintained in a certain form, and the vibrations and vibrations of those parts, and further, the vibrations, vibrations, etc. It is possible to suppress contact with other parts due to the above. Moreover, the part covered with the cylindrical protection part 30 among the wire bundles 12 can be easily bent and deformed, and the laying operation of the wire harness including the wire bundles 12 can be easily performed.

  Moreover, since the nonwoven fabric is hot-pressed in a state of covering the wire bundle 12, the nonwoven fabric protection part 24 is in close contact with the outer peripheral surface of the wire bundle 12. Thereby, this protection member 22 can be firmly fixed to the electric wire bundle 12, and the position shift etc. of the protection member 22 can be suppressed. Moreover, since the clearance gap between the protection member 22 and the electric wire bundle 12 can be suppressed, the contact sound between them can also be suppressed.

  Moreover, since the nonwoven fabric protection part 24 is provided at both ends of the cylindrical protection part 30, the protection member 22 can be firmly attached and fixed to the wire bundle 12 at both ends of the part where the bending of the wire bundle 12 can be easily performed.

  Moreover, since the nonwoven fabric is hot-pressed in a state of covering the end portion of the cylindrical protection portion 30 and the wire bundle 12, the connection state between the nonwoven fabric protection portion 24 and the cylindrical protection portion 30 is more reliably maintained. .

  But the nonwoven fabric does not necessarily need to be hot-pressed in a state of covering the end of the cylindrical protection part 30. For example, like the electric wire 120 with a protective member shown in FIG. 4, the tubular protective part 130 is sandwiched between a pair of nonwoven protective parts 124, and the nonwoven protective part 124 and the tubular protective part 130 are connected. It may be. That is, when attaching the pair of nonwoven fabric protection parts 124 to the wire bundle 12, the cylindrical protection part 130 is disposed between the pair of nonwoven fabric protection parts 124, and the distance between the pair of nonwoven fabric protection parts 124 is The length is set to be substantially the same as the length dimension of the cylindrical protection section 130 or smaller than the length dimension of the cylindrical protection section 130 as long as the cylindrical protection section 130 can be disposed therebetween. Thereby, the cylindrical protection part 130 is inserted | pinched between the pair of nonwoven fabric protection parts 124 in the aspect which cannot move easily. In this case, preferably, the nonwoven fabric protection part 124 and the cylindrical protection part 130 are in close contact with each other, and no gap is formed between them. However, a gap may be formed between the nonwoven fabric protection part 124 and the cylindrical protection part 130 according to expansion / contraction of the cylindrical protection part 30, an assembly error, an accuracy error, and the like.

  Even in the case shown in FIG. 4, the wire bundle 12 can be continuously protected by the portion covered with the nonwoven fabric protection part 124 and the cylindrical protection part 130. In this case, there is an advantage that the nonwoven fabric protection part 124 and the cylindrical protection part 130 can be connected without performing an operation of covering the cylindrical protection part with the nonwoven fabric.

  As described above, the configuration in which the nonwoven fabric protection portion 124 and the cylindrical protection portion 130 are connected is not only a configuration in which the nonwoven fabric protection portion 124 and the cylindrical protection portion 130 are connected inseparably, but also the nonwoven fabric. It includes a configuration in which the protection unit 124 and the cylindrical protection unit 130 are disposed in close contact with each other so that the electric wire can be continuously protected.

<The manufacturing method of the electric wire 20 with a protection member>
Embodiment which concerns on the manufacturing method of the electric wire 20 with a protection member is described.

  The protective member-equipped electric wire 20 has a cylindrical protection by hot-pressing the non-woven fabric in a state in which the electric wire bundle 12 is inserted into the cylindrical protective portion 30 and the electric wire bundle 12 is covered with the non-woven fabric. It can manufacture with a manufacturing method provided with the process (b) which forms the nonwoven fabric protection part 24 connected with the part 30. FIG.

  FIG. 5 is a schematic perspective view showing an example of a hot pressing mold 40 for manufacturing the electric wire 20 with a protective member. The hot press mold 40 includes a lower mold 42, a lower mold holder 50, and an upper mold 60.

  The lower die 42 is a long member formed of a metal or the like having excellent thermal conductivity, and a lower die surface 44 is formed on one main surface (upper surface) thereof. The lower mold surface 44 schematically includes a trapezoidal groove portion 45 and side edge pressing surfaces 46 provided at both side edges of the trapezoidal groove portion 45. The trapezoidal groove portion 45 is a groove having a trapezoidal cross section that becomes narrower on the bottom surface side, and is open above and at both ends of the lower mold. The trapezoidal groove portion 45 has a length dimension substantially the same as the length dimension of one nonwoven fabric protective part 24.

  The lower mold holder 50 is formed of a metal plate or the like having excellent thermal conductivity, and has the same uneven shape as the lower mold surface 44. The lower mold holder 50 is detachably placed on the lower mold surface 44, and functions as a part that forms a lower part when hot pressing the nonwoven fabric. The lower mold holder 50 is for easily performing a setting operation of the nonwoven fabric and the electric wire bundle 12 and an operation of taking out the nonwoven fabric protection section 24 after hot pressing from the lower mold 42. The lower mold holder 50 is not essential and may be omitted. In the present embodiment using the lower mold holder 50, the upper surface of the lower mold holder 50 functions as a mold surface that more directly forms the shape of the nonwoven fabric protection part 24. For this reason, the upper surface of the lower mold holder 50 is also referred to as a lower mold surface 44f.

  The upper mold 60 is a long member formed of a metal or the like having excellent thermal conductivity, and an upper mold surface 64 is formed on one main surface (lower surface) thereof. The upper mold surface 64 has the same shape as the lower mold surface 44 (lower mold surface 44f), and is disposed close to and opposed to the lower mold surface 44 (lower mold surface 44f). A non-woven fabric protective portion 24 is formed between the surface 64 and the lower mold surface 44 (lower mold surface 44f).

  The lower mold 42 and the upper mold 60 are provided with a heater 70 as a heating device (see FIGS. 6 and 7). The heater 70 heats the lower mold surface 44 (lower mold surface 44f) and the upper mold surface 64 to a temperature lower than the melting point of the basic fiber and higher than the melting point of the adhesive resin. The heater 70 may be embedded in the lower mold 42 and the upper mold 60, or may be attached to the outer surfaces of the lower mold 42 and the upper mold 60 in a manner capable of transferring heat. .

  The manufacturing method of the electric wire 20 with a protection member using this hot press mold 40 will be described.

  First, the wire bundle 12 is inserted into the cylindrical protection part 30. 6 and 7, the nonwoven fabric 80, the wire bundle 12, and the nonwoven fabric 80 are arranged on the lower mold surface 44 (lower mold surface 44f) of the lower mold 42. More specifically, the lower mold holder 50 is placed on the lower mold 42, and a single nonwoven fabric 80 is disposed on the lower mold surface 44 (lower mold surface 44f). The nonwoven fabric 80 is formed in a rectangular sheet shape that can be disposed over substantially the entire lower mold surface 44 (lower mold surface 44f). On the central part in the width direction of the nonwoven fabric 80, the electric wire bundle 12 is placed along the extending direction of the trapezoidal groove portion 45 of the lower mold surface 44 (lower mold surface 44f). At this time, the end portion of the cylindrical protective portion 30 is partially disposed on the nonwoven fabric 80 (see FIG. 7), and the wire bundle 12 portion extending from the cylindrical protective portion 30 is disposed on the nonwoven fabric 80. (See FIG. 6). And it arrange | positions so that the other one nonwoven fabric 80 may be piled up on them. Thereby, the edge part of the cylindrical protection part 30 and the electric wire bundle 12 are pinched | interposed between the two nonwoven fabrics 80, and they are arrange | positioned on the lower mold | type surface 44 (lower mold | type surface 44f).

  The lower mold holder 50 may be set on the lower mold 42 after the nonwoven fabric 80, the wire bundle 12, the tubular protection part 30, and the nonwoven fabric 80 are disposed on the lower mold holder 50.

  Thereafter, with the lower mold 42 and the upper mold 60 heated, the lower mold 42 and the upper mold 60 are moved close to each other, and pressure is applied between them. Then, as shown in FIGS. 8 and 9, the non-woven fabric 80 is compressed and heated, and is processed and formed into a form that is difficult to bend to such an extent that the wire bundle 12 can be maintained in a fixed path. At this time, the non-woven fabric protective portion 24 is fixed in close contact with the outer peripheral surface of the wire bundle 12 in the wire bundle 12 portion (see FIG. 8), and the outer peripheral surface of the tubular protective portion 30 in the tubular protective portion 30 portion. (See FIG. 9). Further, on both sides of the wire bundle 12, the side edge portions of the pair of nonwoven fabrics 80 are pressure-bonded by the side edge pressurizing surfaces 46, and the joining edge portions 25 are formed.

  Then, when the lower mold | type 42 and the upper mold | type 60 are moved apart and the nonwoven fabric protection part 24 hot-pressed between both is taken out, one nonwoven fabric protection part 24 will be formed. Cooling after hot pressing may be performed in a state existing between the lower mold 42 and the upper mold 60, or may be performed in a state of being taken out from between them. In the latter case, the nonwoven fabric protection part 24 may be cooled with the lower mold holder 50 removed from the lower mold 42.

  Subsequently, when the other non-woven fabric protective portion 24 is also formed by hot pressing in the same manner as described above, the electric wire 20 with a protective member in which the cylindrical protective portion 30 is provided between the pair of non-woven fabric protective portions 24 is obtained.

  The pair of non-woven fabric protective parts 24 may be simultaneously molded using separate hot pressing molds 40, or may be sequentially molded separately or using the same hot pressing mold 40. Good.

  In the hot pressing mold 40, the nonwoven fabric protective portion 24 is formed by a combination of a concave mold and a concave mold, but this is not always necessary.

  For example, a hot press mold 240 shown in FIG. 10 includes a lower mold 242, a lower mold holder 250, and an upper mold 260.

  The lower mold 242 is a long member formed of a metal or the like having excellent thermal conductivity, and a lower mold surface 244 is formed on one main surface (upper surface) thereof. The lower mold surface 244 is roughly formed in a substantially rectangular groove shape in cross section that opens upward and at both ends.

  The lower mold holder 250 is formed of a metal plate or the like having excellent thermal conductivity, and is formed in the same uneven shape as the lower mold surface 244. The lower mold holder 250 is detachably placed on the lower mold surface 244 and has the same function and role as the lower mold holder 50. Also in this modification, the inner surface of the lower mold holder 250 is also referred to as the lower mold surface 244f.

  The upper mold 260 is a long member formed of a metal or the like having excellent thermal conductivity. A convex portion 262 is formed on one main surface (lower surface), and the lower surface is formed on the upper mold surface 264. . The upper mold surface 264 is formed in a rectangular shape capable of closing the upper opening of the lower mold surface 244 (lower mold surface 244f), and is disposed within the lower mold surface 244 (lower mold surface 244f), The nonwoven fabric is compression-molded into a rectangular cross section between the upper mold surface 264 and the lower mold surface 244 (lower mold surface 244f). The lower mold 242 and the upper mold 260 are also provided with the same heater 70 as described above.

  A method of forming a nonwoven fabric protective part using the hot press mold 240 will be described.

  First, as shown in FIGS. 11 and 12, the electric wire bundle 12 wrapped with the nonwoven fabric 280 is disposed in the lower mold surface 244 (lower mold surface 244 f) of the lower mold 242. More specifically, one nonwoven fabric 280 is disposed along the inner peripheral bottom surface and both side surfaces of the lower mold surface 244 (lower mold surface 244f). And the edge part of the cylindrical protection part 30 is arrange | positioned in the nonwoven fabric 280 (refer FIG. 12), and the electric wire bundle 12 part extended from the cylindrical protection part 30 is arrange | positioned in the nonwoven fabric 280 (refer FIG. 11). . In addition, the nonwoven fabric 280 is formed in the rectangular shape which has the width | variety which can wrap the electric wire bundle 12 and the cylindrical protection part 30. FIG. Both side portions of the nonwoven fabric 280 are in contact with each other on the upper opening side of the lower mold surface 244 (lower mold surface 244f). The lower mold holder 250 may be set on the lower mold 242 after the non-woven fabric 280, the wire bundle 12 and the cylindrical protection portion 30 are disposed in the lower mold holder 250.

  Thereafter, while the lower mold 242 and the upper mold 260 are heated, the upper mold surface 264 of the upper mold 260 is moved close to the lower mold surface 244 (lower mold surface 244f), and pressure is applied between them. Then, as shown in FIG.13 and FIG.14, the nonwoven fabric 280 is compressed in the state which covered the electric wire bundle 12 and the cylindrical protection part 30. FIG. Thereby, the non-woven fabric protective portion 224 having a rectangular cross section is formed as a portion corresponding to the non-woven fabric protective portion 24. In addition, the nonwoven fabric 280 is compressed by the part on the upper mold | type surface 264 side rather than the wire bundle 12 and the cylindrical protection part 30, and the both-sides edge part of the nonwoven fabric 280 is pressure-bonded.

  Thereafter, the lower mold 242 and the upper mold 260 are moved away from each other, and the nonwoven fabric protective portion 224 can be taken out in the same manner as described above.

  In addition, as shown in FIG. 4, when connecting the nonwoven fabric protection part 124 and the cylindrical protection part 130 by sandwiching the cylindrical protection part 130 between the pair of nonwoven protection parts 124, the nonwoven fabric 80, It is not necessary to hot press the cylindrical protection part 30 in a state of being wrapped by 280.

  In addition, each structure demonstrated in the said embodiment and each modification can be suitably combined unless it mutually contradicts.

10 electric wire 12 electric wire bundle 20, 120 electric wire with protective member 22 protective member,
24, 124, 224 Nonwoven fabric protection part 30, 130 Cylindrical protection part 80, 280 Nonwoven cloth

Claims (5)

Electric wires,
A non-woven fabric protective portion formed by hot pressing in a state where the non-woven fabric covers the electric wire;
A cylindrical protective part that can be inserted through the electric wire and is more easily bent than the nonwoven protective part, and is connected to the non-woven protective part in a state in which the electric wire is inserted;
An electric wire with a protective member. It is an electric wire with a protection member according to claim 1,
A protection member in which the nonwoven fabric protection section and the cylindrical protection section are connected by hot pressing the nonwoven fabric in a state where a part of the nonwoven fabric covers the end of the cylindrical protection section. Attached wire. It is an electric wire with a protection member according to claim 2,
The electric wire with a protective member, wherein the non-woven fabric protective part is provided at both ends of the cylindrical protective part. It is an electric wire with a protection member according to claim 1,
An electric wire with a protective member, wherein the tubular protective part is sandwiched between a pair of the nonwoven protective parts, and the nonwoven protective part and the tubular protective part are connected. A method of manufacturing an electric wire with a protective member that covers and protects an electric wire,
(A) inserting the electric wire into the cylindrical protection part;
(B) forming a non-woven fabric protective portion connected to the tubular protective portion by hot pressing the non-woven fabric with the electric wire covered with the non-woven fabric;
The manufacturing method of the electric wire with a protection member provided with.

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