U.S. patent application number 17/420006 was filed with the patent office on 2022-03-24 for wiring member.
This patent application is currently assigned to AutoNetworks Technologies, Ltd.. The applicant listed for this patent is AutoNetworks Technologies, Ltd., SUMITOMO ELECTRIC INDUSTRIES, LTD., Sumitomo Wiring Systems, Ltd.. Invention is credited to Miyu ARAMAKI, Daichi FUKUSHIMA, Hiroki HIRAI, Housei MIZUNO, Tetsuya NISHIMURA, Junichi SHIRAKAWA.
Application Number | 20220093288 17/420006 |
Document ID | / |
Family ID | 1000006039327 |
Filed Date | 2022-03-24 |
United States Patent
Application |
20220093288 |
Kind Code |
A1 |
FUKUSHIMA; Daichi ; et
al. |
March 24, 2022 |
WIRING MEMBER
Abstract
A wiring member includes a sheet material including a first
layer formed into a sheet-like shape and a second layer provided on
a main surface of the first layer, and a wire-like transmission
member fixed on the sheet material. The second layer is a layer
mediating a bonding of the first layer and the wire-like
transmission member, and includes a plurality of partial second
layers provided to be separated from each other along an extension
direction of the wire-like transmission member.
Inventors: |
FUKUSHIMA; Daichi; (Mie,
JP) ; HIRAI; Hiroki; (Mie, JP) ; MIZUNO;
Housei; (Mie, JP) ; ARAMAKI; Miyu; (Mie,
JP) ; NISHIMURA; Tetsuya; (Mie, JP) ;
SHIRAKAWA; Junichi; (Mie, JP) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
AutoNetworks Technologies, Ltd.
Sumitomo Wiring Systems, Ltd.
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
Mie
Mie
Osaka |
|
JP
JP
JP |
|
|
Assignee: |
AutoNetworks Technologies,
Ltd.
Mie
JP
Sumitomo Wiring Systems, Ltd.
Mie
JP
SUMITOMO ELECTRIC INDUSTRIES, LTD.
Osaka
JP
|
Family ID: |
1000006039327 |
Appl. No.: |
17/420006 |
Filed: |
January 11, 2019 |
PCT Filed: |
January 11, 2019 |
PCT NO: |
PCT/JP2019/000706 |
371 Date: |
June 30, 2021 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H01B 7/0045
20130101 |
International
Class: |
H01B 7/00 20060101
H01B007/00 |
Claims
1. A wiring member, comprising: a sheet material including a first
layer formed into a sheet-like shape and a second layer provided on
a main surface of the first layer; and a wire-like transmission
member fixed on the sheet material, wherein the second layer is a
layer mediating a bonding of the first layer and the wire-like
transmission member, and includes a plurality of partial second
layers provided to be separated from each other along an extension
direction of the wire-like transmission member.
2. The wiring member according to claim 1, wherein the wire-like
transmission member includes a plurality of wire-like transmission
members fixed in a branch state on the sheet material, and the
plurality of partial second layers include a layer provided in a
region keeping a state where the plurality of wire-like
transmission members are branched.
3. The wiring member according to claim 2, wherein the plurality of
partial second layers include a layer provided in a region where
the plurality of wire-like transmission members are bended in a
branch part of the wire-like transmission members.
4. The wiring member according to claim 1, wherein the plurality of
partial second layers include a layer provided in a region where
the plurality of wire-like transmission members intersect with each
other.
5. The wiring member according to claim 1, wherein at least part of
the wire-like transmission member is fixed on the sheet material in
a bended state, and the plurality of partial second layers include
a layer provided in a region keeping a state where the wire-like
transmission member is bended.
6. The wiring member according to claim 5, wherein the plurality of
partial second layers include a layer provided in a region where
the wire-like transmission member is bended.
7. The wiring member according to claim 5, wherein the plurality of
partial second layers include layers provided on both sides of a
position where the wire-like transmission member is bended.
8. The wiring member according to claim 1, wherein the plurality of
partial second layers include a layer provided in a terminal
portion of the sheet material.
9. The wiring member according to claim 1, wherein intervals
between the plurality of partial second layers in a direction along
an extension direction of the wire-like transmission member are
different.
10. The wiring member according to claim 1, wherein lengths of the
plurality of partial second layers in a direction along an
extension direction of the sheet material are different.
11. The wiring member according to claim 1, wherein the partial
second layers include a layer protruding to a lateral side of the
wire-like transmission member to be provided on a main surface of
the first layer, and the wiring member further comprises a cover
attached to the sheet material to cover at least part of the
wire-like transmission member via portions of the partial second
layers provided to protrude to a lateral side of the wire-like
transmission member.
Description
TECHNICAL FIELD
[0001] The present invention relates to a wiring member.
BACKGROUND ART
[0002] Patent Document 1 discloses a wire harness including an
exterior member formed into a sheet-like shape and an electrical
wire disposed to overlap with the exterior member in at least part
of a region along an extension direction, wherein at least part of
a portion where an insulating covering of the electrical wire and
the exterior member overlap each other is welded.
PRIOR ART DOCUMENTS
Patent Documents
[0003] Patent Document 1: Japanese Patent No. 6365704
SUMMARY
Problem to be Solved by the Invention
[0004] There is a possibility that sufficient fixing strength
cannot be obtained when a material of the insulating covering of
the electrical wire and a material of the exterior member are not
compatible with each other or a welding area is small. In this
case, a holding part mediating a bonding of the exterior member and
the insulating covering of the electrical wire by welding is
considered to be provided on a main surface of the exterior
member.
[0005] However, in this case, if the holding part is provided on
the whole main surface of the exterior member, quantity and cost
for materials increase.
[0006] Accordingly, an object of the present invention is to be
able to fix a wire-like transmission member to a sheet material as
firmly as possible while reducing a weight and cost for materials
of the wiring member.
Means to Solve the Problem
[0007] In order to solve the above problem, a wiring member
according to a first aspect includes: a sheet material including a
first layer formed into a sheet-like shape and a second layer
provided on a main surface of the first layer; and a wire-like
transmission member fixed on the sheet material, wherein the second
layer is a layer mediating a bonding of the first layer and the
wire-like transmission member, and includes a plurality of partial
second layers provided to be separated from each other along an
extension direction of the wire-like transmission member.
[0008] A second aspect is the wiring member according to the first
aspect, wherein the wire-like transmission member includes a
plurality of wire-like transmission members fixed in a branch state
on the sheet material, and the plurality of partial second layers
include a layer provided in a region keeping a state where the
plurality of wire-like transmission members are branched.
[0009] A third aspect is the wiring member according to the second
aspect, wherein the plurality of partial second layers include a
layer provided in a region where the plurality of wire-like
transmission members are bended in a branch part of the wire-like
transmission members.
[0010] A fourth aspect is the wiring member according to any one of
the first to third aspects, wherein the plurality of partial second
layers include a layer provided in a region where the plurality of
wire-like transmission members intersect with each other.
[0011] A fifth aspect is the wiring member according to any one of
the first to fourth aspects, wherein at least part of the wire-like
transmission member is fixed on the sheet material in a bended
state, and the plurality of partial second layers include a layer
provided in a region keeping a state where the wire-like
transmission member is bended.
[0012] A sixth aspect is the wiring member according to the fifth
aspect, wherein the plurality of partial second layers include a
layer provided in a region where the wire-like transmission member
is bended.
[0013] A seventh aspect is the wiring member according to the fifth
or six aspect, wherein the plurality of partial second layers
include layers provided on both sides of a position where the
wire-like transmission member is bended.
[0014] An eighth aspect is the wiring member according to any one
of the first to seventh aspects, wherein the plurality of partial
second layers include a layer provided in a terminal portion of the
sheet material.
[0015] A ninth aspect is the wiring member according to any one of
the first to eighth aspects, wherein intervals between the
plurality of partial second layers in a direction along an
extension direction of the wire-like transmission member are
different.
[0016] A tenth aspect is the wiring member according to any one of
the first to ninth aspects, wherein lengths of the plurality of
partial second layers in a direction along an extension direction
of the sheet material are different.
[0017] An eleventh aspect is the wiring member according to any one
of the first to tenth aspects, wherein the partial second layers
include a layer protruding to a lateral side of the wire-like
transmission member to be provided on a main surface of the first
layer, and the wiring member further comprises a cover attached to
the sheet material to cover at least part of the wire-like
transmission member via portions of the partial second layers
provided to protrude to a lateral side of the wire-like
transmission member.
Effects of the Invention
[0018] According to the first aspect, the wire-like transmission
member can be fixed to the sheet material as firmly as possible by
the second layer. The second layer includes a plurality of partial
second layers provided to be separated from each other along an
extension direction of the wire-like transmission member, thus a
weight and cost for materials of the wiring member can be reduced
compared with a case where the second layer is provided on the
whole main surface of the sheet material.
[0019] According to the second aspect, the partial second layer can
keep the state where the plurality of wire-like transmission
members are branched, thus the wire-like transmission member can be
effectively fixed to the sheet material.
[0020] According to the third aspect, the partial second layer can
keep the state where the plurality of wire-like transmission
members are bended in a branch part of the wire-like transmission
members.
[0021] According to the fourth aspect, the partial second layer can
keep the state where the plurality of wire-like transmission
members intersect with each other.
[0022] According to the fifth aspect, the partial second layer can
keep the state where the wire-like transmission member is
bended.
[0023] According to the sixth aspect, the partial second layer can
keep the state where the wire-like transmission member is
bended.
[0024] According to the seventh aspect, the partial second layer
can keep the state where the wire-like transmission member is
bended.
[0025] According to the eighth aspect, the partial second layer can
firmly hold the wire-like transmission member in the terminal
portion of the sheet material.
[0026] According to the ninth aspect, the intervals between the
plurality of partial second layers are changed in accordance with
the preferable fixing strength, thus the wire-like transmission
member can be fixed to the sheet material as firmly as possible,
and a weight and cost for materials of the wiring member can be
reduced.
[0027] According to the tenth aspect, the lengths of the plurality
of partial second layers are changed in accordance with the
preferable fixing strength, thus the wire-like transmission member
can be fixed to the sheet material as firmly as possible, and a
weight and cost for materials of the wiring member can be
reduced.
[0028] According to the eleventh aspect, the wire-like transmission
member can be protected by the cover.
BRIEF DESCRIPTION OF DRAWINGS
[0029] FIG. 1 A schematic plan view illustrating a wiring member
according to an embodiment.
[0030] FIG. 2 A schematic cross-sectional view along a II-II line
in FIG. 1.
[0031] FIG. 3 A schematic cross-sectional view along a III-III line
in FIG. 1.
[0032] FIG. 4 A partial schematic cross-sectional view along a
IV-IV line in FIG. 1.
[0033] FIG. 5 A partial schematic plan view illustrating a
modification example of an arrangement region of a partial second
layer.
[0034] FIG. 6 A partial schematic plan view illustrating another
modification example of an arrangement region of a partial second
layer.
[0035] FIG. 7 A partial schematic plan view illustrating still
another modification example of the arrangement region of the
partial second layer.
[0036] FIG. 8 A schematic plan view illustrating a modification
example including a cover.
DESCRIPTION OF EMBODIMENT(S)
[0037] A wiring member according to an embodiment is described
hereinafter. FIG. 1 is a schematic plan view illustrating a wiring
member 10, FIG. 2 is a partial schematic cross-sectional view along
a II-II line in FIG. 1, FIG. 3 is a partial schematic
cross-sectional view along a line III-III in FIG. 1, and FIG. 4 is
a partial schematic cross-sectional view along a IV-IV line in FIG.
1.
[0038] The wiring member 10 is a member joined to a plurality of
components mounted to a vehicle to transmit at least one of
electricity or light between the components. The wiring member 10
includes a sheet material 20 and a wire-like transmission member 30
fixed on the sheet material 20. The wire-like transmission member
30 is disposed on a main surface of the sheet material 20, thus the
wiring member 10 is formed flatly as a whole. The wiring member 10
may remain in a flat form in a state where the wiring member 10 is
assembled to a vehicle, or may be in a bended form in a thickness
direction.
[0039] The sheet material 20 includes a first layer 22 formed into
a sheet-like shape and a second layer 24 provided on a main surface
of the first layer 22.
[0040] The first layer 22 defines an outer shape of the sheet
material 20, and in this point, the first layer 22 is a base
material functioning as a base.
[0041] The second layer 24 is a layer mediating a bonding of the
first layer 22 and the wire-like transmission member 30. That is to
say, the second layer 24 is provided on the main surface of the
first layer 22, and the wire-like transmission member 30 is fixed
to the second layer 24, thus the wire-like transmission member 30
is hardly peeled from the sheet material 20 in a case where the
wire-like transmission member 30 is fixed to the second layer 24
compared with a case where the wire-like transmission member 30 is
fixed to the first layer 22.
[0042] Materials constituting the first layer 22 and the second
layer 24 are not particularly limited, but may contain resin such
as polyvinyl chloride (PVC), polyethylene (PE), polyethylene
terephthalate (PET), and polypropylene (PP), for example. A
structure of the base material is not particularly limited,
however, a fiber material having fibers such as a woven cloth, a
knitting cloth, and a non-woven cloth, for example, may be
applicable, and a non-fiber material which does not have fibers
such as a member made up by extrusion molding or injection molding.
When the base material is a non-fiber material made up by extrusion
molding or injection molding, a foam made up by foam molding or a
solid material which is not foam-molded but is uniformly solid may
also be applicable.
[0043] The other layer such a metal layer may be overlapped with
the first layer 22 and the second layer 24.
[0044] Considering that the first layer 22 has a role as a base of
the wiring member 10, it is sufficient that the first layer 22 is
excellent in tensile strength than the second layer 24, for
example.
[0045] Considering that the second layer 24 is the layer mediating
the bonding of the first layer 22 and the wire-like transmission
member 30, it is sufficient that the second layer 24 is fixed to
the wire-like transmission member with larger force than to the
first layer 22.
[0046] Adoptable as an example of such a combination is a case
where the first layer 22 is a non-woven sheet, a woven sheet, and a
knitted sheet, and a base resin of resin of the second layer 24 is
the same as a base resin of resin constituting a surface of the
wire-like transmission member 30.
[0047] In this case, when a constituent fiber excellent in the
tensile strength is used in the first layer 22, the first layer 22
can be relatively soft and excellent in the tensile strength, thus
such a fiber is appropriate as a base material functioning as a
base. A minute gap caused by the fiber, for example, is formed in
the surface of the first layer 22, thus when the second layer 24
melted by heat, for example, fills the gap, and is then hardened,
the first layer 22 and the second layer 24 can be relatively firmly
bonded. That is to say, the first layer 22 and the second layer 24
can be relatively firmly bonded by a type of anchor effect. In this
case, a melting point of the first layer 22 is higher than that of
the second layer 24, thus the second layer 24 is melted to fill the
gap of the first layer 22 easily.
[0048] In this case, any material can be used as a material
constituting the first layer 22 regardless of the resin
constituting the surface of the wire-like transmission member 30.
For example, when the surface of the wire-like transmission member
30 is formed of polyvinyl chloride (PVC), polypropylene (PP),
polyethylene terephthalate (PET), and polyethylene (PE), for
example, may be used as the resin constituting the first layer
22.
[0049] When the base resin of the resin of the second layer 24 is
the same as that constituting the surface of the wire-like
transmission member 30, the wire-like transmission member 30 can be
relatively firmly bonded to the second layer 24 by welding the
wire-like transmission member 30 to the second layer 24, for
example. For example, when the base resin of the covering on outer
periphery of the wire-like transmission member 30 is PVC, it is
sufficient that the base resin of the second layer 24 is PVC.
[0050] Also based on an assumption of a case were the wire-like
transmission member 30 is fixed to the second layer 24 by an
adhesive agent, the adhesive agent generally has favorable adhesion
properties on a member having favorable compatibility (affinity),
and particularly has favorable adhesion properties on the same
system of resin. When the base resin of the resin of the second
layer 24 is the same as that constituting the surface of the
wire-like transmission member 30, the wire-like transmission member
30 and the second layer 24 can be relatively firmly bonded by using
an adhesive agent appropriate for the base resin.
[0051] The second layer 24 may be made of resin softer than the
first layer 22 as the other example of the above combination.
[0052] In this case, the first layer 22 is harder than the second
layer 24, thus can be excellent in the tensile strength, for
example, and a material suitable as the base material functioning
as the base can be selected.
[0053] When the second layer 24 is softer than the first layer 22,
the wire-like transmission member 30 can be embedded in the second
layer 24 to some degree in fixing the wire-like transmission member
30 to the second layer 24, thus a fixing region of the wire-like
transmission member 30 in a circumferential direction can be
increased. Accordingly, the fixing strength of the wire-like
transmission member 30 can be increased.
[0054] Flexibility of the first layer 22 and the second layer 24
can be changed by changing a ratio of a plasticizing agent to be
added even in a case where a common base resin is used. For
example, when the base resin of the first layer 22 and the second
layer 24 is PVC and an amount of the plasticizing agent to be added
is larger in the second layer 24 than in the first layer 22, the
second layer 24 can be softer than the first layer 22. The base
resin of the first layer 22 and the second layer 24 may not be PVC,
however, PE, PP, and PET, for example, are also applicable. The
second layer 24 may also be softened by changing a degree of
polymerization of the resin as the base, copolymerizing the other
resin, adding a modifier capable of increasing flexibility (for
example, olefin system or styrene system thermoplastic elastomer).
When the first layer 22 and the second layer 24 are made of a
common base resin, the first layer 22 and the second layer 24 can
be relatively firmly bonded by melting or an adhesive agent, for
example.
[0055] The configuration of the second layer 24 is not limited to
each example described above, however, any configuration is
applicable as long as the fixing strength in fixing the wire-like
transmission member 30 to the second layer 24 is higher than that
in fixing the wire-like transmission member 30 to the first layer
22.
[0056] Herein, the first layer 22 includes a main part 22a and a
plurality of (four herein) extension parts 22b to hold the
plurality of wire-like transmission members 30 along branched
routes.
[0057] The main part 22a is formed into an elongated rectangular
shape. Each of the plurality of extension parts 22b is formed into
an elongated rectangular shape.
[0058] The two extension parts 22b extend to one lateral side from
both end portions of the main part 22a. The other two extension
parts 22b extend to one lateral side from an intermediate portion
of the main part 22a in an extension direction. A base end portion
of the plurality of extension parts 22b is overlapped with one
lateral edge portion of the main part 22a. The base end portion of
the plurality of extension parts 22b may also be bonded to one
lateral edge portion of the main part 22a by welding, an adhesive
agent, and a double-sided tape, for example.
[0059] Herein, the plurality of extension parts 22b extend to one
lateral side of the main part 22a, however, some of them may extend
from the other lateral side. Herein, the plurality of extension
parts 22b extend in a direction perpendicular to the main part 22a,
but may also extend in an oblique direction with respect to the
main part 22a.
[0060] Lengths of the plurality of extension parts 22b may be the
same or different. The extension part 22b may be omitted.
[0061] A fixing member 40 is attached to both lateral portions of
the base end portion of the extension part 22b overlapping with the
main part 22a. The fixing member 40 is a member referred to a clamp
or a clip, including a base part 42, a column part 44, and a
locking part 46. The base part 42 is formed into a plate-like
shape. The column part 44 stand on the base part 42. The locking
part 46 is provided on a tip end of the column part 44. The locking
part 46 is formed to be able to be inserted into and locked to a
hole 52 formed in a fixing target member 50. The locking part 46 is
inserted into and locked to the hole 52 formed in the fixing
target, thus the fixing member 40 is fixed to the fixing target
member 50. The base part 42 functions as a retaining part and the
locking part 46 functions as a decent part in the state where the
fixing member 40 is fixed to the fixing target member 50. The
fixing member 40 is an integrated molded component made of resin by
injection molding, for example.
[0062] The fixing member 40 is inserted into both lateral portions
of the base end portion of the extension part 22b overlapping with
the main part 22a. In the state where the fixing member 40 is fixed
to the fixing target member, the portion of the base end portion of
the extension part 22b overlapping with the main part 22a is fixed
between the base part 42 and the fixing target member 50, and the
wiring member 10 can be fixed to the fixing member 40.
[0063] The base part 22a and the plurality of extension parts 22b
described above may be integrally formed.
[0064] The second layer 24 includes a plurality of partial second
layers 25a, 25b, 26, 27, 28, and 29 provided to be separated from
each other along the extension direction of the wire-like
transmission member 30.
[0065] A region where the partial second layers 25a, 25b, 26, 27,
28, and 29 is provided relates to a position where the wire-like
transmission member 30 is provided, thus the wire-like transmission
member 30 is described.
[0066] It is sufficient that the wire-like transmission member 30
is a wire-like member transmitting electricity or light. For
example, the wire-like transmission member 30 may be a general wire
having a core wire and an insulating covering around the core wire,
or may also be a bare conductive wire, an enamel wire, a nichrome
wire, or an optical fiber. The wire-like transmission member 30
transmitting electricity and the wire-like transmission member 30
transmitting light may be arranged in parallel or only one of them
may be disposed.
[0067] The wire-like transmission member 30 transmitting the
electricity may be various kinds of signal lines or various kinds
of power lines. The wire-like transmission member 30 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.
[0068] The wire-like transmission member 30 is considered to
include a transmission wire body 32 transmitting electricity or
light and a covering 34 covering the transmission wire body 32.
When the wire-like transmission member 30 is a general wire, for
example, the transmission wire body 32 corresponds to a core wire,
and the covering 34 corresponds to an insulating covering. The core
wire includes one or a plurality of strands. Each strand is formed
of a conductive material such as copper, copper alloy, aluminum,
and aluminum alloy, for example. When the core wire is made up of
the plurality of strands, the plurality of strands are preferably
stranded. The insulating covering is formed of a resin material
such as PVC or PE extrusion-molded around the core wire.
[0069] The sheet material 20 and the wire-like transmission member
30 are fixed to each other. The sheet material 20 and the wire-like
transmission member 30 are fixed to each other by a contact area
fixation. The contact area fixation indicates that a portion where
the sheet material 20 and the wire-like transmission member 30 have
contact with each other is stuck and fixed.
[0070] Applicable as the configuration of the contact area fixation
are a contact area indirect fixation and a contact area direct
fixation, or both fixations may also be used together in different
regions. Herein, the contact area indirect fixation indicates that
the sheet material 20 and the wire-like transmission member 30 are
indirectly stuck and fixed via an adhesive agent, for example,
provided therebetween. The contact area direct fixation indicates
that the sheet material 20 and the wire-like transmission member 30
are directly stuck and fixed without an intervention of the
adhesive agent, for example, which is separately provided.
Considered in the contact area direct fixation is that resin
included in at least one of the sheet material 20 and the wire-like
transmission member 30 is melted, thus the sheet material 20 and
the wire-like transmission member 30 are stuck and fixed, for
example. In the description hereinafter, the sheet material 20 and
the wire-like transmission member 30 are in the state of the
contact area direct fixation.
[0071] In forming the state of such a contact area direct fixation,
the resin is considered to be melted by heat or a solvent, for
example. That is to say, the state of the contact area direct
fixation may be the state of the contact area direct fixation by
the heat or the state of the contact area direct fixation by the
solvent. The contact area direct fixation by the heat is
preferable.
[0072] At this time, a means of forming the state of the contact
area direct fixation is not particularly limited, but a known means
such as welding, fusion, and melting joint can be used. For
example, when the state of the contact area direct fixation by the
heat is formed by welding, various welding means such as ultrasonic
welding, heating-pressurizing welding, hot air welding, and high
frequency welding can be adopted. When the state of the contact
area direct fixation is formed by these means, the sheet material
20 and the wire-like transmission member 30 are in the state of the
contact area direct fixation by these means. Specifically, when the
state of the contact area direct fixation is formed by the
ultrasonic welding, for example, the sheet material 20 and the
wire-like transmission member 30 are in the state of the contact
area direct fixation by the ultrasonic welding.
[0073] In the case of the contact area direct fixation, only one of
the resin included in the sheet material 20 and the resin included
in the covering 34 of the wire-like transmission member 30 may be
melted, or both of them may be melted. In the former case, the
resin which has been melted is stuck on an outer surface of the
resin which has not been melted, and a relatively clear interface
may be formed in some cases. In the latter case, there may be a
case where both the resins are mixed and a clear interface is not
be formed. Particularly, when the covering 34 of the wire-like
transmission member 30 and the sheet material 20 include compatible
resin such as the same resin material, for example, there may be a
case where both the resins are mixed and a clear interface is not
be formed.
[0074] Herein, the wiring member 10 includes a plurality of
wire-like transmission members 30. The plurality of wire-like
transmission members 30 are wired on the first layer 22 in the
following configuration.
[0075] That is to say, intermediate portions of the plurality of
wire-like transmission members 30 in the extension direction are
disposed along the main part 22a of the first layer 22. Each of the
end portions of the plurality of wire-like transmission members 30
is bended at a position of any extension part 22b and disposed
along the corresponding extension part 22b.
[0076] Some of the plurality of wire-like transmission members 30
are branched from the other wire-like transmission members 30 at a
position corresponding to the two extension parts 22b closer to the
intermediate portion of the main part 22a in the plurality of
extension parts 22b. In this portion, some of the wire-like
transmission members 30 are disposed to be bended and directed to
the extension part 22b. Some of the wire-like transmission members
30 are disposed to intersect with the other wire-like transmission
member 30 and be directed to the extension part 22b (refer to an
intersection position 31 in FIG. 1). Some of the plurality of
wire-like transmission members 30 are disposed to be bended at the
end portion of the main part 22a and directed to the extension part
22b in the end portion of the main part 22a.
[0077] Each end portion of the plurality of wire-like transmission
members 30 is connected to a connector 60 at the end portion of the
extension part 22b. When the wire-like transmission member 30 is an
electrical wire, the connector 60 is an electrical connector in
which a terminal connected to an end portion of the electrical wire
is housed in a connector housing. When the connector 60 is
connected to a connector of the other side component, a plurality
of components are electrically connected or connected to transmit
and receive an optical signal via the wire-like transmission member
30.
[0078] The plurality of partial second layers 25a, 25b, 26, 27, 28,
and 29 of the second layer 24 are provided to be separated from
each other along the extension direction of the wire-like
transmission member 30 described above. Herein, each of the partial
second layers 25a, 25b, 26, 27, 28, and 29 is formed into a
quadrangular shape, however, the other shape such as a circular
shape and a polygonal shape (triangular shape and pentagonal shape,
for example) is also applicable. Each of the partial second layers
25a, 25b, 26, 27, 28, and 29 has a width large enough to fix all of
the plurality of wire-like transmission members 30 passing through
a partial region in the partial region in the extension direction
of the main part 22a or the extension part 22b in the partial
region. However, it is also applicable that each of the partial
second layers 25a, 25b, 26, 27, 28, and 29 has a width large enough
to fix part of the plurality of wire-like transmission members 30
passing through a partial region in the extension direction of the
main part 22a or the extension part 22b in the partial region.
[0079] The partial second layers 25a and 25b are provided in a
region keeping a state where the plurality of wire-like
transmission members 30 are branched.
[0080] In this manner, at least one wire-like transmission member
30 is bended in a position where the plurality of wire-like
transmission members 30 are branched. Thus, the partial second
layers 25a and 25b are provided in a region including a position
where the wire-like transmission member 30 is bended in the branch
part. Herein, the partial second layers 25a and 25b are provided
not only in a region corresponding to the wire-like transmission
member 30 bended in the branch position but also in a region
corresponding to the wire-like transmission member 30 provided
straight. That is to say, in each position where the plurality of
wire-like transmission members 30 are branched, one partial second
layer 25a (or 25b) is provided in a region corresponding to the
bended wire-like transmission member 30 and the wire-like
transmission member 30 disposed straight.
[0081] The partial second layer 25a is provided in a region where
the plurality of wire-like transmission members 30 intersect with
each other. That is to say, in the position where the plurality of
wire-like transmission members 30 are branched, there is a case
where at least one wire-like transmission member 30 intersects with
the other wire-like transmission member 30 (refer to the
intersection position 31). The partial second layer 25a is provided
in a region where the plurality of wire-like transmission members
30 intersect with each other in the branch part. Thus, the second
layer 25a is fixed to the wire-like transmission members 30
intersecting with each other in the intersection position 31 in a
position where the second layer 25a sandwiches the intersection
position 31.
[0082] Described herein is an example the intersection position 31
is generated in the position where the plurality of wire-like
transmission members 30 are branched. However, the plurality of
wire-like transmission members 30 may intersect with each other in
a portion other than the branch position for a purpose of switching
an order of arrangement in accordance with an arrangement of
terminals of connectors, for example. The partial second layer may
also be provided in a region where the plurality of wire-like
transmission members 30 intersect with each other in a portion
other than the branch position.
[0083] The partial second layer 26 is provided in a region keeping
a state where the wire-like transmission member is bended.
[0084] Herein, the plurality of wire-like transmission members 30
are bended in both end portions of the main part 22a, and the
partial second layer 26 is provided in a region keeping a state
where the plurality of wire-like transmission members 30 are bended
in the both end portions of the main part 22a.
[0085] Assumable as the region keeping the state where the
plurality of wire-like transmission members 30 are bended is a
region including the position where the wire-like transmission
member 30 is bended itself. Accordingly, the bended part itself in
the wire-like transmission member 30 is held by the partial second
layer 26 along a predetermined route on the first layer 22. Herein,
each partial second layer 26 fixes the bended position of the
plurality of wire-like transmission members 30 to the first layer
22.
[0086] In the example illustrated in FIG. 1, the partial second
layer 26 is formed into a shape extending to the position where the
plurality of wire-like transmission members 30 are bended and a
position adjacent to the position where the plurality of wire-like
transmission members 30 are bended. However, as illustrated in FIG.
5, the partial second layer 126 may be provided in a local region
centering on the position where the plurality of wire-like
transmission members 30 are bended.
[0087] The region keeping the state where the plurality of
wire-like transmission members 30 are bended needs not necessarily
include the position where the wire-like transmission member 30 is
bended. For example, as illustrated in FIG. 6, the pair of partial
second layers 226 may be provided on both sides of the position
where the wire-like transmission member 30 is bended along the
route of the wire-like transmission member 30. The pair of partial
second layers 226 keep a posture of the wire-like transmission
member 30 constant on the both sides of the position where the
wire-like transmission member 30 is bended, thus the bended state
of the wire-like transmission member 30 is also kept constant.
[0088] The partial second layer 27 is provided on a terminal
portion of the sheet material 20, that is a terminal portion of the
extension part 22b herein. The partial second layer 26 may be
provided to have contact with an edge of the terminal of the
extension part 22b, or may also be provided in a position 1 cm or
less away from the edge of the terminal of the extension part
22b.
[0089] The partial second layer 28 is provided in a region where
the plurality of wire-like transmission members 30 are not branched
or bended but extend straight in the main part 22a.
[0090] The partial second layer 29 is provided in a region where
the plurality of wire-like transmission members 30 are not branched
or bended but extend straight in the extension part 22b.
[0091] The plurality of wire-like transmission members 30 are fixed
to the partial second layers 25a, 25b, 26, 27, 28, and 29 by
relatively large force in regions where the partial second layers
25, 25b, 26, 27, 28, and 29 are provided (refer to FIG. 2).
[0092] The plurality of wire-like transmission members 30 are not
fixed to the sheet material 20 in the region where the partial
second layers 25a, 25b, 26, 27, 28, and 29 are not provided (refer
to FIG. 3). The wire-like transmission member 30 may be fixed to
the first layer 22 also in a region in the sheet material 20 where
the partial second layers 25a, 25b, 26, 27, 28, and 29 are not
provided.
[0093] The sheet material 20 described above can be manufactured by
bonding the partial second layers 25a, 25b, 26, 27, 28, and 29
partially formed in a predetermined shape in advance to a material
constituting the first layer 22, for example.
[0094] According to the wiring member 10 having such a
configuration, the wire-like transmission member 30 can be fixed to
the sheet material 20 as firmly as possible by the second layer 24.
The second layer 24 includes the plurality of partial second layers
25a, 25b, 26, 27, 28, and 29 formed to have a configuration of
being separated from each other along the extension direction of
the wire-like transmission member 30, thus a weight and cost for
materials of the wiring member 10 can be reduced compared with the
case where the second layer is provided on the whole main surface
of the sheet material 20.
[0095] The wire-like transmission members 30 are bended or
intersect with each other in the branch part of the wire-like
transmission members 30, thus there is a possibility that the
fixing strength of the wire-like transmission members 30 fixed to
the sheet material 20 is reduced. The partial second layers 25a and
25b are provided in the region keeping the state where the
plurality of wire-like transmission members 30 are branched,
thereby being able to keep the state where the plurality of
wire-like transmission members 30 are branched, thus the wire-like
transmission member 30 can be effectively fixed to the sheet
material 20.
[0096] Particularly, the partial second layers 25a and 25b are
provided in the portions where the plurality of wire-like
transmission members 30 are bended in the branch positions, thus
the state where the plurality of wire-like transmission member 30
are bended in the branch parts can be effectively kept.
[0097] In the intersection position 31 of the plurality of
wire-like transmission members 30, the wire-like transmission
member 30 on the side away from the sheet material 20 has a small
fixing region fixed to the sheet material 20. The partial second
layer 25a is provided in the region where the plurality of
wire-like transmission members 30 intersect with each other, thus
the state where the plurality of wire-like transmission members 30
intersect with each other can be effectively kept.
[0098] There is a possibility that force of the wire-like
transmission member 30 recovering the original shape acts in the
position where the plurality of wire-like transmission members 30
are bended. The partial second layer 26 is provided in the region
where the wire-like transmission member 30 is bended, thus the
state where the wire-like transmission member 30 is bended can be
effectively kept.
[0099] Particularly, the partial second layers 26 and 126 are
provided in the regions where the wire-like transmission member 30
is bended, thus the state where the wire-like transmission member
30 is bended can be effectively kept.
[0100] Also in the case where the partial second layers 226 are
provided on both sides of the position where the wire-like
transmission member 30 is bended, the portions on both sides of the
position where the wire-like transmission member 30 is bended can
be kept in a constant posture, thus the bended state of the
wire-like transmission member 30 can be effectively kept.
[0101] There is a possibility that force in a direction of peeling
the wire-like transmission member 30 from the sheet material 20
acts in the terminal portion of the sheet material 20 when the
connector 60 is moved, for example. The partial second layer 27 is
provided in the terminal portion of the sheet material 20, thus the
area ranging from the wire-like transmission member 30 to the
terminal portion of the sheet material 20 can be firmly held.
[0102] Lengths of the partial second layers 25a, 25b, 26, 27, 28,
and 29 may be the same or different in the direction along the
extension direction of the sheet material 20 (the extension
direction of the main part 22a and the extension direction of the
extension part 22b). The lengths of the partial second layers 25a,
25b, 26, 27, 28, and 29 may be larger in a position of at least one
of the branch position, the branch position, and the terminal
portion of the wire-like transmission members 30 than the position
where the wire-like transmission member 30 is held in the straight
state. In the example illustrated in FIG. 1, the length of the
partial second layer 26 disposed in the bended position of the
wire-like transmission member 30 is set larger than those of the
partial second layers 28 and 29 disposed in the straight position
of the wire-like transmission member 30. Accordingly, the lengths
of the plurality of partial second layers 25a, 25b, 26, 27, 28, and
29 are changed in accordance with the preferable fixing strength,
thus the wire-like transmission member 30 can be fixed to the sheet
material 20 as firmly as possible, and a weight and cost for
materials of the wiring member 10 can be reduced.
[0103] When the lengths of the partial second layers are different,
they may be changed in at least two levels, but may also be changed
in multiple levels. When widths of the plurality of partial second
layers 25a, 25b, 26, 27, 28, and 29 are the same, the change in the
lengths of the plurality of partial second layers 25a, 25b, 26, 27,
28, and 29 is synonymous with a change in areas of the partial
second layers 25a, 25b, 26, 27, 28, and 29. The width of the
partial second layer may also be changed by the number and
intervals between the wire-like transmission members 30 to be
held.
[0104] The intervals between the plurality of partial second layers
in the direction along the extension direction of the wire-like
transmission member 30 may the same or different.
[0105] FIG. 7 illustrates an example of changing intervals between
a plurality of partial second layers 325 and 326 in the direction
along the extension direction of the wire-like transmission member
30.
[0106] FIG. 7 illustrates a schematic plan view of a part of a
wiring member 310 according to a modification example.
[0107] In the wiring member 310, a first layer 322 of the sheet
material 320 includes an arc band-like part 322a and a straight
band-like part 322b extending from both ends of the arc band-like
part 322a. The plurality of wire-like transmission members 30 are
disposed along an extension direction of the first layer 322. The
plurality of wire-like transmission members 30 extend from one
straight band-like part 32b to be connected to a connector 360.
[0108] The second layer 324 includes the plurality of partial
second layers 325 and 326. The plurality of partial second layers
325 are provided on the arc band-like part 322a, and the plurality
of partial second layers 326 are provided on the straight band-like
part 322b. The interval between the plurality of partial second
layers 325 and the interval between the partial second layer 325
and the partial second layer 326 adjacent thereto in the arc
band-like part 322a is smaller than the interval between the
plurality of partial second layers 326 in the straight band-like
part 322b.
[0109] The partial second layers 325 and 326 are provided at a
relatively close interval in the position where the plurality of
wire-like transmission members 30 are bended and a surrounding
region thereof, thus the state where the wire-like transmission
members 30 are bended can be effectively kept. In the meanwhile,
the partial second layers 326 are provided at a relatively large
interval in the position where the plurality of wire-like
transmission members 30 are disposed straight, thus the weight and
cost for materials of the wiring member 10 can be reduced.
[0110] The partial second layer may be provided closer to each
other in the position where the plurality of wire-like transmission
members 30 are branched or the terminal portion, for example, than
in the other portion. Also in FIG. 7, the two partial second layer
326 are provided at a relatively closer interval in the terminal
portion than in the other portion.
[0111] When the intervals between the partial second layers are
different, it may be changed in at least two levels, but may also
be changed in multiple levels.
[0112] In a wiring member 410 according to a modification example
illustrated in FIG. 8, the partial second layers 25a, 25b, and 26
protrude to a lateral side of the wire-like transmission member 30
and are provided on the first layer 22. Herein, the plurality of
wire-like transmission members 30 are disposed in a parallel state
in the partial second layers 25a, 25b, and 26, and the partial
second layers 25a, 25b, and 26 protrude to an outer side in
relation to the wire-like transmission members 30 located on both
end sides,
[0113] A cover 420 is attached to the sheet material 20 to cover at
least part of the wire-like transmission member 30 via the portion
of the partial second layers 25a, 25b, and 26 protruding to the
lateral side of the wire-like transmission member 30. Herein, the
cover 420 attached to the partial second layers 25a and 25b covers
the branch position of the wire-like transmission members 30. The
cover 420 attached to the partial second layer 26 covers the bended
position of the wire-like transmission members 30.
[0114] The partial second layers 25a, 25b, and 26 have the
configuration suitable for fixing the wire-like transmission member
30, thus when the cover 420 is made of the same material as a
constituent resin around the wire-like transmission member 30. for
example, the cover 420 can be fixed to the first layer 22
relatively firmly via the partial second layers 25a, 25b, and
26.
[0115] Accordingly, the wire-like transmission member 30 can be
firmly fixed to the sheet material 20 by the partial second layers
25a, 25b, and 26 in the position in the wire-like transmission
member 30 where the relatively firm fixation is necessary, and this
configuration is also suitable for attaching the cover 420 to the
sheet material 20 with covering the wire-like transmission member
30.
[0116] The cover may cover the -like transmission member 30 with a
larger region. For example, the cover may cover the wire-like
transmission member 30 on the whole sheet material 20, for
example.
MODIFICATION EXAMPLE
[0117] Each configuration described in the embodiments and
modification examples thereof can be appropriately combined as long
as they are not contradictory.
[0118] For example, in the above embodiment, the main part 22a or
the extension part 22b may be curved to have an arc-like shape. It
is also applicable that the modification example illustrated in
FIG. 5 and the modification example illustrated in FIG. 6 are
combined to constitute the partial second layer in the bended part
and both sides of the bended part of the wire-like transmission
member 30. The cover may be provided in the example illustrated in
FIG. 7.
[0119] Although the present invention is described in detail, the
foregoing description is in all aspects illustrative and does not
restrict the invention. It is therefore understood that numerous
modifications and variations can be devised without departing from
the scope of the invention.
EXPLANATION OF REFERENCE SIGNS
[0120] 10, 310, 410 wiring member
[0121] 20, 320 sheet material
[0122] 22, 322 first layer
[0123] 24, 324 second layer
[0124] 25a, 25b, 26, 27, 28, 29, 126, 226, 326 partial second
layer
[0125] 30 wire-like transmission member
[0126] 31 intersection position
[0127] 420 cover
* * * * *