Patent Application
20250006404
The present disclosure relates to a wiring member.
Patent Document 1 discloses a wiring member in which an assembled wire made up of a plurality of bundled wire-like transmission members is fixed to a base member.
It is desired that a twisted wire is fused and fixed to a base member more rigidly.
Accordingly, an object is to provide a technique capable of fusing and fixing a twisted wire to a base member more rigidly.
A wiring member according to the present disclosure includes: a twisted wire in which a first wire-like transmission member and a second wire-like transmission member are stranded; and a base member to which the twisted wire is fused and fixed, wherein when parts of the twisted wire in which the first wire-like transmission member and the second wire-like transmission member are arranged side by side on the base member are side-by side parts, and parts of the twisted wire in which the first wire-like transmission member and the second wire-like transmission member are vertically arranged are vertical parts, the side-by-side parts and the vertical parts alternately extend along an extension direction of the twisted wire, a section between two of the vertical parts continuously formed is a half cycle section of a strand in the twisted wire, each of the first wire-like transmission member and the second wire-like transmission member is fused to the base member in each of the side-by-side parts to form a side-by-side fusion part, and a length of a first half cycle section including the side-by-side fusion part is larger than a length of a second half cycle section located adjacent to the first half cycle section.
According to the present disclosure, the twisted wire can be fused and fixed to the base member more rigidly.
Embodiments of the present disclosure are listed and described firstly.
A wiring member according to the present disclosure is as follows.
(1) A wiring member includes: a twisted wire in which a first wire-like transmission member and a second wire-like transmission member are stranded; and a base member to which the twisted wire is fused and fixed, wherein when parts of the twisted wire in which the first wire-like transmission member and the second wire-like transmission member are arranged side by side on the base member are side-by side parts, and parts of the twisted wire in which the first wire-like transmission member and the second wire-like transmission member are vertically arranged are tandem parts, the side-by-side parts and the vertical parts alternately extend along an extension direction of the twisted wire, a section between two of the vertical parts continuously formed is a half cycle section of a strand in the twisted wire, each of the first wire-like transmission member and the second wire-like transmission member is fused to the base member in each the side-by-side parts to form a side-by-side fusion part, and a length of a first half cycle section including the side-by-side fusion part is larger than a length of a second half cycle section located adjacent to the first half cycle section. The length of the first half cycle section including the side-by-side fusion part is larger than the length of the second half cycle section located adjacent to the first half cycle section, the side-by-side fusion part can be easily elongated. Accordingly, the twisted wire can be fused and fixed to the base member more rigidly.
(2) In the wiring member according to (1), the first wire-like transmission member and the second wire-like transmission member may be away from each other in a parallel direction in the side-by-side fusion part. Accordingly, suppressed is an overlap between the first wire-like transmission member and the second wire-like transmission member in fusion, and each of the first wire-like transmission member and the second wire-like transmission member can be fused and fixed to the base member more rigidly.
(3) In the wiring member according to (1) or (2), the first wire-like transmission member and the second wire-like transmission member may extend straight in parallel to each other in the side-by-side fusion part. Accordingly, each of the first wire-like transmission member and the second wire-like transmission member can be rigidly fixed to the base member easily in the side-by-side fusion part, and the twisted wire can be fused and fixed to the base member more rigidly.
(4) In the wiring member according to any one of (1) to (3), the first wire-like transmission member and the second wire-like transmission member may not be fused to the base member while being disposed on the base member in the second half cycle section. Accordingly, a part of the plurality of side-by-side parts in the twisted wire is fused to the base member, thus the fusion process is simplified. Also in this case, the side-by-side fusion part can be elongated, thus the twisted wire can be fused and fixed to the base member more rigidly.
(5) In the wiring member according to any one of (1) to (4), it is applicable that a length dimension of a fusion part of the first wire-like transmission member in the side-by-side fusion part is larger than a width dimension of the first wire-like transmission member, and a length dimension of a fusion part of the second wire-like transmission member in the side-by-side fusion part is larger than a width dimension of the second wire-like transmission member. Accordingly, the twisted wire can be fused and fixed to the base member more rigidly.
Specific examples of a wiring member of the present disclosure are described hereinafter with reference to the drawings. The present disclosure is not limited to these examples, but is indicated by claims, and it is intended that meanings equivalent to claims and all modifications within a scope of claims are included.
A wiring member according to an embodiment 1 is described hereinafter. In each diagram, a part of a configuration may be exaggerated or simplified in some cases for convenience of description. A dimension ratio of each part may be different between the diagrams in some cases. “Perpendicular” in the present specification includes not only a definitely perpendicular state but also a substantially perpendicular state. The substantially perpendicular state indicates a state where an angle formed by two directions is preferably equal to or larger than 85 degrees and smaller than 90 degrees, for example. “Parallel” in the present specification includes not only a definitely parallel state but also a substantially parallel state. The substantially parallel state indicates a state where an angle formed by two directions is equal to or smaller than 10 degrees, and is preferably equal to or smaller than 5 degrees, for example.
The wiring member 10 includes a twisted wire 20 and a base member 30. The wiring member 10 further includes an additional wire-like transmission member 40. The twisted wire 20 and the additional wire-like transmission member 40 are fused and fixed to the base member 30.
The twisted wire 20 includes a first wire-like transmission member 21A and a second wire-like transmission member 21B. The first wire-like transmission member 21A and the second wire-like transmission member 21B are stranded. The first wire-like transmission member 21A and the second wire-like transmission member 21B are the same type of wire-like transmission members. When the first wire-like transmission member 21A and the second wire-like transmission member 21B need not be distinguished from each other, the first wire-like transmission member 21A and the second wire-like transmission member 21B are collectively referred to as the wire-like transmission member 21 in some cases.
The wire-like transmission member 21 may be a wire-like member transmitting electricity or light, for example. For example, the wire-like transmission member 21 may be a general wire having a core wire and a covering around the core wire, or may also be a shielded wire, an enamel wire, a nichrome wire, or an optical fiber. The wire-like transmission member transmitting the electricity may be various kinds of signal lines or various kinds of power lines. The wire-like transmission member transmitting the electricity may be used as an antenna or coil, for example, transmitting or receiving a signal or electrical power to or from a space.
The wire-like transmission member 21 includes a transmission wire body 22 and a covering layer 23 covering the transmission wire body. In the description herein, the wire-like transmission member 21 is a general wire 21 (simply referred to as the electrical wire 21 hereinafter). The electrical wire 21 includes a core wire 22 as the transmission wire body 22 and an insulating covering 23 as the covering layer 23 for covering the core wire 22. Each description on the electrical wire 21 is applicable to the wire-like transmission member 21 except for a configuration to which the description is not applicable.
The core wire 22 is made up of one or a plurality of strands. The strand is formed of a conductor made of copper, copper alloy, aluminum, or aluminum alloy, for example. When the core wire 22 is made up of the plurality of strands, the plurality of strands may be stranded. The insulating covering 23 is formed of a resin material such as polyvinyl chloride (PVC) or polyethylene (PE) extrusion-molded around the core wire 22. Herein, the electrical wire 21 is a so-called round wire having a round shape in cross section.
A least a part of the twisted wire 20 is disposed on the base member 30. Herein, a part of the twisted wire 20 including an intermediate part is disposed on the base member 30. An end portion of the twisted wire 20 extends from an end portion of the base member 30 to an outer side of the base member 30.
The base member 30 is a member in which the twisted wire 20 is fused and fixed on a main surface 32. The twisted wire 20 is fused and fixed on the main surface 32, thus the twisted wire 20 is held along a predetermined route on the main surface 32. That is to say, the base member 30 is also considered a member having the main surface 32 holding the twisted wire 20 along the predetermined route. It is sufficient that the base member 30 is a member having the main surface 32 for fusing and fixing the twisted wire 20 as described above, thus may be formed into a sheet-like shape or a stereoscopic shape.
In the description herein, the base member 30 is a member having a flat part, more specifically, a sheet member 30 which can be bended in some cases. Each description on the sheet member 30 is applicable to the base member 30 except for a configuration to which the description is not applicable.
A material constituting the sheet member 30 is not particularly limited, however, the sheet member 30 is preferably formed of a material containing a resin of polyvinyl chloride (PVC), polyethylene terephthalate (PET), or polypropylene (PP). The sheet member 30 may be a sheet material with an inner portion evenly filled or a non-woven sheet, for example. The sheet member 30 may contain a material such as metal. The sheet member 30 preferably has flexibility of being easily bended in a thickness direction. The sheet member 30 may be made up of a single layer or a plurality of stacked layers. When the sheet member 30 is made up of the plurality of stacked layers, it is considered that a resin layer and a resin layer are stacked, for example. It is also considered that a resin layer and a metal layer are stacked, for example.
In the present embodiment, an additional wire-like transmission member 40 is fixed on the main surface 32 in addiction to the twisted wire 20 described above. The additional wire-like transmission member 40 may be a wire-like member transmitting electricity or light, for example, as with the wire-like transmission member 21, or may also be a member similar to the twisted wire 20. In the description herein, the additional wire-like transmission member 40 is a general wire 40 (simply referred to as the electrical wire 40 hereinafter) including a core wire 41 and an insulating covering 42. Each description on the electrical wire 40 is applicable to the additional wire-like transmission member 40 except for a configuration to which the description is not applicable. The plurality of additional wire-like transmission members 40 may be fixed on the main surface 32, or may also be omitted.
The electrical wire 40 is also fused and fixed on the main surface 32. A part where the electrical wire 40 fused and fixed on the main surface 32 is a fusion part 54. Herein, the electrical wire 40 is fixed to the main surface 32 in parallel with the twisted wire 20. The electrical wire 40 and the twisted wire 20 may be branched halfway through and fixed along separate routes. The whole electrical wire 40 and the whole twisted wire 20 may be fixed along separate routes on the main surface 32.
Based on an assumption of the configuration that the twisted wire 20 and the electrical wire 40 are fixed on the main surface 32, the base member 30 can be considered a member keeping at least one twisted wire 20 and at least one electrical wire 40 (additional wire-like transmission member 40) in a flat state on the main surface 32. Assumed furthermore is a configuration that the base member 30 has a flat part and at least one twisted wire 20 and at least one electrical wire 40 (additional wire-like transmission member 40) are fixed on a main surface 32 of the flat part. In this case, the wiring member 10 can be considered the wiring member 10 including a flat part keeping the twisted wire 20 and the electrical wire 40 (additional wire-like transmission member 40) in a flat state. Furthermore, the base member 30 is assumed to be the sheet member 30 which can be bended. In this case, the wiring member 10 can be considered the flat wiring member 10 keeping the twisted wire 20 and the electrical wire 40 (additional wire-like transmission member 40) in a flat state, and is the wiring member 10 which can be deformed in accordance with a shape of a surface on which the wiring member 10 is to be disposed.
The twisted wire 20 extends along an extension direction while a positional relationship between a first electrical wire 21A and a second electrical wire 21B is changed. When a part of the twisted wire 20 disposed on the main surface 32 of the sheet member 30 is observed from a direction perpendicular to the main surface 32, a side-by-side part 24 and a vertical part 25 alternately appear along the extension direction of the twisted wire 20. The side-by-side part 24 is a part where the first electrical wire 21A and the second electrical wire 21B are disposed in a parallel state on the sheet member 30. The vertical part 25 is a part where the first electrical wire 21A and the second electrical wire 21B are vertically arranged to be stacked on the main surface 32 of the sheet member 30. A section between the side-by-side part 24 and the vertical part 25 can be considered a shift part 26 for changing the positional relationship of the electrical wire 21.
In the continuous two side-by-side parts 24, a position of the first electrical wire 21A and a position of the second electrical wire 21B are switched from side to side. In the similar manner, in the continuous two vertical parts 25, the position of the first electrical wire 21A and the position of the second electrical wire 21B are switched up and down. In a certain vertical part 25 and another certain vertical part 25 from the certain vertical part 25 via the side-by-side part 24, the vertical part 25, and the side-by-side part 24, the position of the first electrical wire 21A and the position of the second electrical wire 21B are the same as each other, and a section from the certain vertical part 25 to the another certain vertical part 25 constitutes one cycle of strand in the twisted wire 20. Herein, a section of the continuous three vertical parts 25 constitutes one cycle section of strand, and a section of the continuous two vertical parts 25 constitutes a half cycle section of strand in the twisted wire 20.
The first electrical wire 21A and the second electrical wire 21B are arranged side by side on the main surface 32 in the side-by-side part 24, thus each of the first electrical wire 21A and the second electrical wire 21B is located in a position where each of them may have contact with the main surface 32 of the sheet member 30. Each of the first electrical wire 21A and the second electrical wire 21B arranged side by side is fused and fixed to the sheet member 30 in the side-by-side part 24, thereby forming a side-by-side fusion part 50. The first electrical wire 21 and the second electrical wire 21B are arranged side by side in the side-by-side part 24, thus the first electrical wire 21A and the second electrical wire 21B can have stably contact with the main surface 32 of the sheet member 30. Thus, the first electrical wire 21A and the second electrical wire 21B are stably fused and fixed on the main surface 32 of the sheet member 30 easily.
In the side-by-side fusion part 50, a part where the first electrical wire 21A and the sheet member 30 are fused is referred to as a first fusion part 51, and a part where the second electrical wire 21B and the sheet member 30 are fused is referred to as a second fusion part 52 in some cases. The side-by-side fusion part 50 can also be considered to include the first fusion part 51 and the second fusion part 52. The first fusion part 51 and the second fusion part 52 normally have the same length. The first fusion part 51 and the second fusion part 52 may have a length slightly different from each other.
The plurality of side-by-side parts 24 are linearly provided side by side at intervals in the extension direction of the twisted wire 20. The side-by-side fusion part 50 may be formed in only one of the plurality of side-by-side parts 24, or the side-by-side fusion part 50 may also be provided to some of the plurality of side-by-side parts 24. In the latter case, the side-by-side fusion part 50 may be continuously provided to the plurality of side-by-side parts 24 without intervention of a position where the side-by-side fusion part 50 is not provided, or the side-by-side fusion part 50 may be provided to each of the plurality of side-by-side parts 24. Herein, the side-by-side fusion part 50 is provided to the side-by-side parts 24 in a plurality of positions which are not continuously formed from each other in the plurality of side-by-side parts as illustrated in
The half cycle section including the side-by-side fusion part 50 is referred to as a first half cycle section 28A. The half cycle section adjacent to the first half cycle section 28A is referred to as a second half cycle section 28B, and the half cycle section is referred to as a third half cycle section 28C and a fourth half cycle section 28D with increasing distance from the first half cycle section 28A hereinafter. The second half cycle section 28B, the third half cycle section 28C, and the fourth half cycle section 28D are normally located on each of both sides of the first half cycle section 28A. When the first half cycle section 28A is located in the end portion of the sheet member 30 and the end portion of the twisted wire 20 is provided to a part close to the end portion of the sheet member 30, there is a case where the second half cycle section 28B, the third half cycle section 28C, and the fourth half cycle section 28D are not provided on a side of the end portion of the twisted wire 20.
Herein, in each of two second half cycle sections 28B on one side and the other side of the first half cycle section 28A, the first wire-like transmission member 21A and the second wire-like transmission member 21B are not fused to the base member 30 while being disposed thereon. Also in the third half cycle section 28C and the fourth half cycle section 28D on one side of the first half cycle section 28A, the first wire-like transmission member 21A and the second wire-like transmission member 21B are not fused to the base member 30 while being disposed thereon.
In
The length D1 of the first half cycle section 28A is longer than the lengths D2R and D2L of the second half cycle section 28B. Herein, the length D1 of the first half cycle section 28A is longer than the lengths D2R and D2L of two second half cycle sections 28B on one side and the other side of the first half cycle section 28A, respectively. It is sufficient that the length D1 of the first half cycle section 28A is longer than at least one of the lengths D2R and/or D2L of two second half cycle sections 28B on one side and the other side of the first half cycle section 28A.
Herein, the length D1 of the first half cycle section 28A is longer than the lengths D3R and D3L of the third half cycle section 28C. Herein, the length D1 of the first half cycle section 28A is longer than the lengths D3R and D3L of two third half cycle sections 28C on one side and the other side of the first half cycle section 28A, respectively. It is sufficient that the length D1 of the first half cycle section 28A is longer than at least one of the lengths D3R and/or D3L of two third half cycle sections 28C on one side and the other side of the first half cycle section 28A.
Herein, the length D1 of the first half cycle section 28A is longer than the length of the fourth half cycle section 28D. Herein, the length D1 of the first half cycle section 28A is longer than the length D4R of the fourth half cycle section 28D on one side of the first half cycle section 28A. The length of the first half cycle section 28A may be longer than the length of the fourth half cycle section 28D on the other side of the first half cycle section 28A.
Herein, the lengths D2R and D2L of the second half cycle section 28B are shorter than the lengths D3R and D3L of the third half cycle section 28C, respectively. The reason is that the lengths D2R and D2L of the second half cycle section 28B decrease by increase in the length D1 of the first half cycle section 28A. The lengths D2R and D2L of the second half cycle section 28B may be the same as the lengths D3R and D3L of the third half cycle section 28C, respectively. For example, even when the length D1 of the first half cycle section 28A is increased, decrease in the lengths D2R and D2L of the second half cycle section 28B can be suppressed by rewinding the twisted wire 20.
The length D1 of the first half cycle section 28A may be longer than an average of the lengths of all of the half cycle sections in the twisted wire 20. The average of the lengths of all of the half cycle sections in the twisted wire 20 has a value close to a half (referred to as the half pitch hereinafter) a strand pitch (length of one cycle section) set in manufacturing the twisted wire 20. The strand pitch is not particularly limited, but may be 25 mm to 40 mm, for example.
The length D1 of the first half cycle section 28A may be three times or less as large as the lengths D2R and D2L of the second half cycle section 28B, or may also be twice or less or one and a half times or less. The length D1 of the first half cycle section 28A may be three times or less as large as the half pitch, or may also be twice or less or one and a half times or less. For example, the length D1 of the first half cycle section 28A may be 1.2 times as large as the half pitch. The length D1 of the first half cycle section 28A is not too long, thus noise resistance required for the twisted wire 20 can be ensured.
As illustrated in
A sign L and a sign R of the length of the second half cycle section 28B indicate a side, that is one side or the other side of the first half cycle section 28A, on which the second half cycle section 28B is located. The same applies to the third half cycle section 28C and the fourth half cycle section 28D.
As illustrated in
The first electrical wire 21A and the second electrical wire 21B may or may not have contact with each other in the side-by-side part 24 where the side-by-side fusion part 50 is not provided.
In
Adoptable are various types of fusion means such as ultrasonic fusion, heating pressurizing fusion, hot air fusion, and high-frequency fusion in forming a state of fusion fixation in the side-by-side fusion part 50. When the state of the fusion fixation is formed by these means, the electrical wire 21 and the sheet member 30 are in the state of the fusion fixation by these means. Specifically, when the state of the fusion fixation is formed by ultrasonic fusion, the electrical wire 21 and the sheet member 30 are in the state of the fusion fixation by ultrasonic fusion. A part where the state of fusion fixation is formed (a fixation part where the electrical wire 21 and the sheet member 30 are fixed) may be referred to as a fusion part, and in such a part, a fixation part by ultrasonic fusion may be referred to as an ultrasonic fusion part, and a fixation part by heating pressurizing fusion may be referred to as a heating pressurizing fusion part, for example.
In the fusion fixation, only resin included in the covering of the electrical wire 21 may be melted, or only resin included in the sheet member 30 may be melted. In these cases, the resin which has been melted is stuck on an outer surface of the resin on the other side, and a relatively clear interface may be formed in some cases. In the fusion fixation, both resin included in the covering of the electrical wire 21 and resin included in the sheet member 30 may be melted. In this case, there may be a case where the resin in both the components are mixed and a clear interface is not formed. Particularly, when the covering of the electrical wire 21 and the sheet member 30 include compatible resin such as the same resin material, for example, there may be a case where the resin in both the components are mixed and a clear interface is not be formed.
In the description herein, the electrical wire 21 and the sheet member 30 are ultrasonic-fused. Each description on the electrical wire 21 and the sheet member 30 is applicable to various types of fusion fixation described above as long as each member and material has a configuration to which the above fixation is applicable.
A configuration similar to that of fixing the twisted wire 20 to the sheet member 30 described above can also be applied to a configuration of fixing the electrical wire 40, and a configuration of fixing by ultrasonic welding can be applied, for example.
A connection member 60 such as an electrical connector and an optical connector may be provided on an end portion of the twisted wire 20 and an end portion of the electrical wire 40 as illustrated in
Described herein is an example that the twisted wire 20 is ultrasonic-fused to the base member 30 by an ultrasonic fusion machine 80. The ultrasonic fusion machine 80 includes a horn 82 and an anvil 84. The twisted wire 20 is held by the anvil 84.
In
Two grooves 85 are formed in the anvil 84. Two grooves 85 are separated by a partition 86. The first electrical wire 21A and the second electrical wire 21B are held separately in each of two grooves 85. At this time, a length dimension of the groove 85 is larger than the length dimension of the side-by-side part 24 in the to-be fused part 27. Thus, the length dimension of the side-by-side part 24 in the to-be-fused part 27 gets larger in the twisted wire 20, and the twisted wire 20 is held by the anvil 84. At this time, a part of the twisted wire 20 serving as the to-be fused part 27 may be rewound. Accordingly, decrease of the half cycle section adjacent to the to-be fused part 27 is suppressed.
When the first electrical wire 21A and the second electrical wire 21B are held by the anvil 84, the sheet member 30 is disposed as illustrated in
The first electrical wire 21A and the second electrical wire 21B are fused to the sheet member 30 while being held by the anvil 84, thus a part of the first electrical wire 21A and the second electrical wire 21B having a length corresponding to a length held by the anvil 84 can be fused to the sheet member 30. Accordingly, the length of the first half cycle section 28A including the side-by-side fusion part 50 can be larger than that of the second half cycle section 28B. The first electrical wire 21A and the second electrical wire 21B are fused to the sheet while being away from each other in the parallel direction. The first electrical wire 21A and the second electrical wire 21B are fused to the sheet in a straight form in parallel to each other.
When the plurality of side-by-side fusion parts 50 are provided, it is applicable that ultrasonic welding is performed on each of the plurality of side-by-side parts 24, and the side-by-side fusion part 50 are formed one by one. It is also applicable that the horn 82 or the anvil 84 having a plurality of pressure parts protruding at intervals of integral multiple of a pitch of the side-by-side part 24 is used, and ultrasonic welding is collectively performed on the plurality of side-by-side parts 24 to simultaneously form the plurality of side-by-side fusion parts 50. It is also applicable that at least one of the horn 82 and/or the anvil 84 is moved along the twisted wire 20 and the pressure is applied and the ultrasonic vibration energy are supplied from the horn 82 and the anvil 84 in the side-by-side part 24 to be processed to form the plurality of side-by-side fusion parts 50 in series.
According to the wiring member 10 having such a configuration, the length D1 of the first half cycle section 28A including the side-by-side fusion part 50 is larger than the lengths D2R and D2L of the second half cycle section 28B adjacent to the first half cycle section 28A, thus the side-by-side fusion part 50 can be easily elongated. Accordingly, the twisted wire 20 can be fused and fixed to the base member 30 more rigidly.
The first wire-like transmission member 21A and the second wire-like transmission member 21B are away from each other in a parallel direction in the side-by-side fusion part 50. Accordingly, suppressed is an overlap between the first wire-like transmission member 21A and the second wire-like transmission member 21B in fusion, and each of the first wire-like transmission member 21A and the second wire-like transmission member 21B can be fused and fixed to the base member 30 more rigidly.
The first wire-like transmission member 21A and the second wire-like transmission member 21B extend straight in parallel to each other in the side-by-side fusion part 50. Accordingly, each of the first wire-like transmission member 21A and the second wire-like transmission member 21B can be rigidly fused to the base member 30 easily in the side-by-side fusion part 50, and the twisted wire 20 can be fused and fixed to the base member 30 more rigidly.
In the second half cycle section 28B, the first wire-like transmission member 21A and the second wire-like transmission member 21B are not fused to the base member 30 while being disposed thereon. Accordingly, a part of the plurality of side-by-side parts 24 in the twisted wire 20 is fused to the base member 30, thus the fusion process is simplified. Also in this case, the side-by-side fusion part 50 can be elongated, thus the twisted wire 20 can be fused and fixed to the base member 30 more rigidly.
The length dimension of the fusion part of the first wire-like transmission member 21A in the side-by-side fusion part 50 is larger than the width dimension of the first wire-like transmission member 21A. The length dimension of the fusion part of the second wire-like transmission member 21B in the side-by-side fusion part 50 is larger than the width dimension of the second wire-like transmission member 21B. Accordingly, the twisted wire 20 can be fused and fixed to the base member 30 more rigidly.
In the description above, the first wire-like transmission member 21A and the second wire-like transmission member 21B are away from each other in the parallel direction in the side-by-side fusion part 50, however, this configuration is not necessary.
The first wire-like transmission member 21A and the second wire-like transmission member 21B may have contact with each other in the parallel direction in the side-by-side fusion part 50.
In the description above, the first wire-like transmission member 21A and the second wire-like transmission member 21B extend straight in parallel to each other in the side-by-side fusion part 50, however, this configuration is not necessary. For example, the first wire-like transmission member 21A and the second wire-like transmission member 21B may extend in directions different from each other in the side-by-side fusion part 50.
In the description above, in the second half cycle section 28B, the first wire-like transmission member 21A and the second wire-like transmission member 21B are not fuse to the base member 30 while being disposed thereon, however, this configuration is not limited thereto. Also in the second half cycle section 28B, the first wire-like transmission member 21A and the second wire-like transmission member 21B may be fused to the base member 30. Also in this case, the first half cycle section 28A having a long half cycle section is provided, thus a part including the long side-by-side fusion part 50 can be provided.
In the above description, the length dimension of the fusion part of the first wire-like transmission member 21A in the side-by-side fusion part 50 is larger than the width dimension of the first wire-like transmission member 21A, and the length dimension of the fusion part of the second wire-like transmission member 21B in the side-by-side fusion part 50 is larger than the width dimension of the second wire-like transmission member 21B, however, this configuration is not necessary. The length dimension of the fusion part of the first wire-like transmission member 21A in the side-by-side fusion part 50 may be equal to or smaller than the width dimension of the first wire-like transmission member 21A. For example, the length dimension of the fusion part of the second wire-like transmission member 21B in the side-by-side fusion part 50 may be equal to or smaller than the width dimension of the second wire-like transmission member 21B.
The configurations described in the embodiments and modification examples thereof can be appropriately combined as long as they are not contradictory.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2021-194128 | Nov 2021 | JP | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/JP2022/043725 | 11/28/2022 | WO |
