Floor wiring module, floor laminate, and method for manufacturing floor wiring module

Abstract

To provide a technique that enables a silencer and a carpet to be simply arranged on a floor panel.SOLUTION: A floor wiring module 10 includes: a silencer 20; a carpet 30 layered on one main surface of the silencer 20; and a wiring member 50 interposed and held between the silencer 20 and the carpet 30. A layered region between the silencer 20 and the carpet 30 includes: a first region 12 in which the silencer 20 and the carpet 30 are hot pressed to be fixed to each other; and a second region 14 located next to the first region 12 on the one main surface and provided with the wiring member 50 between the silencer 20 and the carpet 30.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to a floor wiring module, a floor laminate, and a method for manufacturing a floor wiring module. [Background technology]

[0002] Patent Document 1 discloses an electric wire routing structure in a vehicle floor panel. The electric wire routing structure of Patent Document 1 is characterized by including a storage recess provided on the interior surface of the floor panel, an electric wire to be stored in the storage recess, and a retaining member that stores and holds the electric wire in the storage recess. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-089398 Summary of the Invention [Problem to be solved by the invention]

[0004] In addition to electric wires, a silencer, a carpet, etc. may be arranged on the floor panel. It is desirable to be able to easily arrange the silencer and the carpet on the floor panel.

[0005] Therefore, an object of the present invention is to provide a technique that allows a silencer and a carpet to be easily arranged on a floor panel. [Means for solving the problem]

[0006] The floor wiring module of the present disclosure comprises a silencer, a carpet laminated on one main surface of the silencer, and a wiring member sandwiched and held between the silencer and the carpet, wherein the laminated area of the silencer and the carpet includes a first area where the silencer and the carpet are fixed by heat pressing, and a second area located adjacent to the first area on the one main surface and where the wiring member is located between the silencer and the carpet. [Effects of the Invention]

[0007] According to the present disclosure, the silencer and carpet can be easily arranged on the floor panel. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a plan view showing a floor wiring module according to the first embodiment. [Figure 2] FIG. 2 is a cross-sectional view taken along line II-II in FIG. [Figure 3] FIG. 3 is a perspective view showing a method for manufacturing a floor wiring module. [Figure 4] FIG. 4 is a perspective view showing a method for manufacturing a floor wiring module. [Figure 5] FIG. 5 is a perspective view showing a method for manufacturing a floor wiring module. DETAILED DESCRIPTION OF THE INVENTION

[0009] [Description of the embodiments of the present disclosure] First, embodiments of the present disclosure will be listed and described.

[0010] The floor wiring module of the present disclosure is as follows.

[0011] (1) A floor wiring module comprising a silencer, a carpet laminated on one main surface of the silencer, and a wiring member sandwiched and held between the silencer and the carpet, wherein the laminated area of the silencer and the carpet includes a first area where the silencer and the carpet are fixed by heat pressing, and a second area located adjacent to the first area on the one main surface and where the wiring member is located between the silencer and the carpet.

[0012] In this floor wiring module, the silencer and carpet are fixed by hot pressing in the first region, allowing them to be fixed with a relatively high bonding force. This makes it easier to maintain the silencer and carpet in an integrated state in the floor wiring module, making it possible to easily arrange the silencer and carpet on the floor panel. Furthermore, because the second region adjacent to the first region is the arrangement region for the wiring member, the wiring member can be easily arranged on the laminate of the silencer and carpet, and the wiring member is less likely to be affected by the hot pressing in the first region.

[0013] (2) In the floor wiring module of (1), the laminated region may include a third region located adjacent to the second region on the one main surface, and in which the silencer and the carpet are fixed via a mechanical joint. This allows the third region to be easily provided. Furthermore, the first region, second region, and third region can be provided in this order, making it difficult for the wiring member to be affected by the heat press in the first region.

[0014] (3) In the floor wiring module of (2), the area occupied by the first region on the one main surface may be larger than the area occupied by the third region, which makes it easier to maintain the silencer and the carpet in an integrated state.

[0015] (4) In the floor wiring module of (2) or (3), the first region may be disposed in a region of the vehicle floor that is more likely to be stepped on by an occupant than the second and third regions. This makes it difficult for an occupant to step on the wiring member in the second region and the mechanical joint member in the third region. In addition, since the silencer and the carpet are fixed in the first region by hot pressing, it is easy to obtain strength against being stepped on by an occupant.

[0016] (5) In the floor wiring module of any one of (1) to (4), the second region may be provided with a wiring holder that fixes the wiring member to at least one of the silencer and the carpet, thereby suppressing misalignment between the wiring member and the laminate of the silencer and the carpet.

[0017] (6) In the floor wiring module of (5), the wiring holder may be a holder having a mechanical joint member or an adhesive holder having a bonding strength weaker than the bonding strength between the silencer and the carpet in the first region. This makes it easy to remove the wiring member even when it is necessary to remove the wiring member from the laminate of the silencer and the carpet when repairing the floor wiring module, for example.

[0018] (7) In the floor wiring module of any one of (1) to (6), the carpet may have a window located in an area inside the outer edge of the one main surface of the silencer, and the wiring member may have an end extending onto the carpet through the window, thereby allowing the wiring member to be easily connected to a device located in an area inside the outer edge of the one main surface of the silencer.

[0019] (8) The floor laminate of the present disclosure is a floor laminate comprising a silencer and a carpet laminated on one main surface of the silencer, wherein the laminated region of the silencer and the carpet includes a fixed region where the silencer and the carpet are fixed by heat pressing, and a separation region located next to the fixed region on the one main surface and where the silencer and the carpet are separated.

[0020] In this floor laminate, the silencer and carpet are fixed by hot pressing in the fixing region, allowing for a relatively high bonding strength. This makes it easy to maintain the silencer and carpet in an integrated state in the floor wiring module, making it easy to arrange the silencer and carpet on the floor panel. Furthermore, because the silencer and carpet are separated in a separation region separate from the fixing region, it is easy to arrange wiring members between the silencer and carpet.

[0021] (9) Furthermore, the manufacturing method of the wiring module for a floor disclosed herein includes the steps of: hot-pressing and fixing a portion of the laminated area between the silencer and the carpet; and arranging a wiring member between the silencer and the carpet in another portion of the laminated area where the silencer and the carpet are not fixed.

[0022] According to this method of manufacturing a floor wiring module, the silencer and carpet are fixed by hot pressing in a portion of the laminated area, allowing them to be fixed with a relatively high bonding force. This makes it easy to maintain the silencer and carpet in an integrated state in the floor wiring module, making it easy to arrange the silencer and carpet on the floor panel. Furthermore, because the wiring member is arranged in an area separate from the area where the silencer and carpet are fixed by hot pressing, the wiring member is less likely to be affected by the hot pressing used to fix the silencer and carpet.

[0023] [Details of the embodiments of the present disclosure] Specific examples of the floor wiring module, floor laminate, and method of manufacturing the floor wiring module of the present disclosure will be described below with reference to the drawings. Note that the present disclosure is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0024] [Embodiment 1] The following describes the floor wiring module 10, floor laminate 100, and method for manufacturing the floor wiring module 10 according to embodiment 1. Fig. 1 is a plan view showing the floor wiring module 10 according to embodiment 1. Fig. 2 is a cross-sectional view taken along line II-II in Fig. 1. The front-rear directions (FRONT, REAR), left-right directions (LEFT, RIGHT), and up-down directions (UP, LOW) shown in Figs. 1 and 2 correspond to the front-rear directions, left-right directions, and up-down directions in a vehicle.

[0025] The floor wiring module 10 is disposed on a floor panel 80 of a vehicle. The floor panel 80 is disposed in the lower part of the vehicle interior. The floor panel 80 is, for example, a metal floor board. The floor wiring module 10 includes a silencer 20, a carpet 30, and a wiring member 50.

[0026] The silencer 20 is a soundproofing member disposed on the floor panel 80. The silencer 20 may be a member that flattens unevenness of the floor panel 80 or the like. The silencer 20 is a molded body made of, for example, fiber or foamed resin. The silencer 20 may be thicker than the carpet 30. The silencer 20 may have higher rigidity than the carpet 30 and be able to maintain its shape.

[0027] The carpet 30 is placed on the silencer 20. The carpet 30 is usually exposed as a design surface inside the vehicle cabin. The carpet 30 may have lower rigidity than the silencer 20 and be easily bent. The carpet 30 is laminated on one main surface of the silencer 20. The wiring member 50 is sandwiched and held between the silencer 20 and the carpet 30. Here, the carpet 30 is divided in the front-to-rear direction of the vehicle.

[0028] The wiring member 50 connects devices together in a vehicle. The wiring member 50 includes a plurality of linear transmission members 51. The linear transmission members 51 may be electric wires that transmit electricity or optical fiber cables that transmit light. The plurality of linear transmission members 51 may be grouped together according to their respective paths in the vehicle. The plurality of linear transmission members 51 may be bundled together with a bundling member such as adhesive tape or a cable tie.

[0029] Here, a connector 52 is provided at the end of the linear transmission member 51. The linear transmission member 51 is connected to a device or another wiring member 50 via the connector 52. The connector 52 has, for example, a connector 52 terminal and a connector 52 housing. The end of the linear transmission member 51 is connected to the connector 52 terminal. The connector 52 terminal is positioned and held in the connector 52 housing. The end of the linear transmission member 51 may also be connected directly to a device or the like without going through the connector 52.

[0030] Here, the wiring member 50 has a first extending portion 53, a second extending portion 54, and a third extending portion 55.

[0031] The first extending portion 53 extends along the front-to-rear direction of the vehicle. Here, a pair of first extending portions 53 are provided. The pair of first extending portions 53 are spaced apart in the width direction of the vehicle. One of the pair of first extending portions 53 extends along the left edge of the silencer 20, and the other of the pair of first extending portions 53 extends along the right edge of the silencer 20. The front end of the first extending portion 53 extends from the front end of the silencer 20 further forward of the vehicle than the silencer 20. The rear end of the first extending portion 53 extends from the rear end of the silencer 20 further rearward of the vehicle than the silencer 20.

[0032] The second extension portion 54 extends along the width direction of the vehicle. The second extension portion 54 is disposed in an intermediate portion of the silencer 20 along the extension direction of the first extension portion 53. The junction of the first extension portion 53 and the second extension portion 54 is defined as a branch portion 56. The left end portion of the second extension portion 54 extends from the left end of the silencer 20 to the left of the vehicle beyond the silencer 20. The right end portion of the second extension portion 54 extends from the right end of the silencer 20 to the right of the vehicle beyond the silencer 20.

[0033] The third extension portion 55 branches off from a middle portion along the extension direction of the second extension portion 54. A branch portion 56 between the second extension portion 54 and the third extension portion 55 is provided between the pair of first extension portions 53.

[0034] The laminated region of the silencer 20 and the carpet 30 includes a first region 12, a second region 14, and a third region 16.

[0035] The first region 12 is a region where the silencer 20 and the carpet 30 are fixed by hot pressing. Here, a thermal adhesive 40 is provided between the silencer 20 and the carpet 30. The silencer 20 and the carpet 30 are firmly fixed together via the thermal adhesive 40.

[0036] The second region 14 is located adjacent to the first region 12 on one main surface of the silencer 20. The two-dot chain line in FIG. 1 indicates the boundary between the first region 12 and the second region 14. The second region 14 is a region where the wiring member 50 is located between the silencer 20 and the carpet 30. In the second region 14, since the wiring member 50 is located between the silencer 20 and the carpet 30, at least one of the silencer 20 and the carpet 30 may flex or bend by the thickness of the wiring member 50. In the example shown in FIG. 2, the silencer 20 flexes and the carpet 30 bends. The carpet 30 may be prevented from bending by providing a groove in the silencer 20, for example.

[0037] The second region 14 is provided with a wiring holding portion 15 that fixes the wiring member 50 to at least one of the silencer 20 and the carpet 30. The wiring holding portion 15 is a holding portion having a mechanical joining member, or an adhesive holding portion having a fixing strength weaker than the fixing strength between the silencer 20 and the carpet 30 in the first region 12.

[0038] When the wiring holder 15 is a holder having a mechanical joint member, the mechanical joint member may be an elastic member such as a sponge. The elastic member is sandwiched and compressed between the wiring member 50 and the silencer 20 or the carpet 30, generating a frictional force that holds the wiring member 50 in place.

[0039] When the wiring holding portion 15 is an adhesive holding portion having a weaker adhesive strength than that between the silencer 20 and the carpet 30 in the first region 12, the adhesive holding portion may be a portion bonded using an adhesive member such as a single-sided adhesive tape, a double-sided adhesive tape, or an adhesive. The adhesive holding portion may be a portion bonded to a mating member by melting the resin of at least one of the wiring member 50 and the silencer 20 or the carpet 30 without using any other member, as in fusion bonding. FIG. 2 shows an example of an adhesive holding portion having an adhesive member 60 such as a double-sided adhesive tape or an adhesive as the wiring holding portion 15.

[0040] The wiring holding portion 15 may be provided at multiple locations spaced apart along the extension direction of the wiring member 50 that can be placed on the silencer 20. In this case, the wiring holding portion 15 may be provided at a portion where the wiring member 50 extends from the silencer 20, at a branch portion 56 of the wiring member 50, or the like. The wiring holding portion 15 may also be provided over the entire wiring member 50 that can be placed on the silencer 20 along the extension direction.

[0041] The third region 16 is located adjacent to the second region 14 on one main surface of the silencer 20. The third region 16 is a region where the silencer 20 and the carpet 30 are fixed via a mechanical joint member 42. The mechanical joint member 42 is not particularly limited and may be, for example, a tag pin-like member, a stapler, or sewing thread. The third region 16 includes the outer edge of the carpet 30. The third region 16 is connected to the first region 12 via the second region 14. The second region 14 is interposed between the first region 12 and the third region 16. The second region 14 and the third region 16 are free ends before the third region 16 is fixed.

[0042] 2 shows an example of a tag pin-shaped member 42 as the mechanical joining member 42. The tag pin-shaped member 42 has, for example, a pair of support pieces 43 and a connecting piece 44 that connects the pair of support pieces 43. One of the pair of support pieces 43 is located below the lower surface of the silencer 20 and hooked onto the lower surface of the silencer 20. The other of the pair of support pieces 43 is located above the upper surface of the carpet 30 and hooked onto the upper surface of the carpet 30. The connecting piece 44 penetrates the silencer 20 and the carpet 30.

[0043] The area occupied by the first region 12 on one main surface of the silencer 20 is larger than the area occupied by the third region 16. The area occupied by the first region 12 may be larger than the area occupied by the second region 14. The area occupied by the first region 12 may be larger than the sum of the area occupied by the second region 14 and the area occupied by the third region 16. The first region 12 may occupy more than half of the area of one main surface of the silencer 20.

[0044] The first region 12 is disposed in an area of the vehicle floor that is more likely to be stepped on by an occupant than the second region 14 and the third region 16. An example of an area that is more likely to be stepped on by an occupant is the area around the occupant's feet. An example of an area that is less likely to be stepped on by an occupant is under the seat or on the side of the rocker 82.

[0045] The portion of the carpet 30 that forms the first region 12 is the first fixed portion 31, the portion that forms the second region 14 is the wire covering portion 32, and the portion that forms the third region 16 is the second fixed portion 33. Wire covering portions 32 are connected to the left, right, and rear of the first fixed portion 31 of the carpet 30 that is located at the front of the vehicle. The left wire covering portion 32 and the rear wire covering portion 32 are separated by a slit 34A. The right wire covering portion 32 and the rear wire covering portion 32 are separated by a slit 34B. The rear wire covering portion 32 is also separated left and right by a slit 34C. In the portion of the rear wire covering portion 32 that covers the branching portion 56 between the first extending portion 53 and the second extending portion 54, tag pin-shaped members 42 are provided at four locations around the branching portion 56. Wire covering portions 32 are connected to the left and right of a first fixed portion 31 of a carpet 30 located at the rear of the vehicle.

[0046] The carpet 30 has a window portion 35 located in a region on the inside of the outer edge of one main surface of the silencer 20. The wiring member 50 has an end portion that extends onto the carpet 30 through the window portion 35. Here, the end portion of the third extension portion 55 extends onto the carpet 30 through the window portion 35. The end portion of the third extension portion 55 is connected to equipment on the carpet 30. Such equipment may be equipment disposed in a seat.

[0047] <Manufacturing method> Next, a method for manufacturing the floor wiring module 10 will be described with reference to Fig. 3 to Fig. 5. Fig. 3 to Fig. 5 are perspective views showing a method for manufacturing the floor wiring module 10.

[0048] First, as shown in Fig. 3, a portion of the laminated area of the silencer 20 and the carpet 30 is hot-pressed and fixed. The carpet 30 is divided into two parts along the front-to-rear direction. A slit 34 is formed in the front carpet 30. In Fig. 3, the area of the carpet 30 that is hot-pressed is the area surrounded by a two-dot chain line. In Fig. 3, the front carpet 30 and the rear carpet 30 are separated in the front-to-rear direction. The front carpet 30 and the rear carpet 30 may also be in contact in the front-to-rear direction.

[0049] The hot pressing is performed using a hot pressing device 90. The hot pressing device 90 includes a pair of pressing members 91 and 92. The pressing member 91 presses the carpet 30, and the pressing member 92 presses the silencer 20. For example, the hot pressing is performed in a state where at least one of the pair of pressing members 91 and 92 is heated by a heating device.

[0050] A thermal adhesive 40 is applied to the portions of the silencer 20 and the carpet 30 that are to be bonded together. The portions where the thermal adhesive 40 is applied are hot-pressed, thereby bonding the silencer 20 and the carpet 30 together via the thermal adhesive 40. Note that portions of the silencer 20 and the carpet 30 where the thermal adhesive 40 is not applied may also be hot-pressed. In this case, the portions of the silencer 20 and the carpet 30 where the thermal adhesive 40 is not applied may not be bonded together when hot-pressed.

[0051] Next, in another part of the laminated region of the silencer 20 and the carpet 30 where the silencer 20 and the carpet 30 are not fixed, the wiring member 50 is disposed between the silencer 20 and the carpet 30 .

[0052] As shown in FIG. 4 , the floor laminate 100 is formed by fixing a portion of the laminated region of the silencer 20 and the carpet 30 by hot pressing. The floor laminate 100 includes the silencer 20 and the carpet 30 laminated on one main surface of the silencer 20. In the floor laminate 100, the laminated region of the silencer 20 and the carpet 30 includes a fixed region 102 and a separation region 104. The fixed region 102 is a region where the silencer 20 and the carpet 30 are fixed by hot pressing. The fixed region 102 corresponds to the first region 12 in the floor wiring module 10. The separation region 104 is located next to the fixed region 102 on one main surface of the silencer 20. The separation region 104 is a region where the silencer 20 and the carpet 30 are separated. The separation region 104 is a portion that will become the second region 14 and the third region 16 in the floor wiring module 10.

[0053] In the carpet 30 constituting the floor laminate 100, the portion constituting the separation region 104 is a loose piece 36 whose tip end is free to move around the base end rather than the base end connected to the fixed region 102. The loose piece 36 can be bent with the base end connected to the fixed region 102 as a fold line. Slits 34A, 34B, 34C are provided in the carpet 30 at the front of the vehicle, thereby providing four loose pieces 36 on the left, right, left rear, and right rear of the fixed region 102. The carpet 30 at the rear of the vehicle is provided with loose pieces 36 on the right and left of the fixed region 102.

[0054] In the separation region 104 of this floor laminate 100, a wiring member 50 is disposed between the silencer 20 and the carpet 30.

[0055] First, as shown in FIG. 4 , the floating pieces 36 are bent to expose the upper surface of the silencer 20. Then, the wiring member 50 is placed on the exposed upper surface of the silencer 20. At this time, by bending all of the floating pieces 36, the exposed upper surface of the silencer 20 has a shape corresponding to the path of the wiring member 50. Therefore, by placing the wiring member 50 on the exposed upper surface of the silencer 20, the wiring member 50 can be easily placed along a predetermined path. In the example shown in FIG. 4 , the floating pieces 36 are bent 90 degrees. The floating pieces 36 may also be bent 180 degrees so that the floating pieces 36 overlap the fixed region 102. The carpet 30 may be formed so that the floating pieces 36 can be bent so that the floating pieces 36 overlap the fixed region 102.

[0056] 4, an adhesive member 60 such as a double-sided adhesive tape or an adhesive is provided on the upper surface of the silencer 20. The wiring member 50 is placed on the upper surface of the silencer 20, and the adhesive member 60 adheres to the silencer 20 and the wiring member 50, thereby forming the wiring holding portion 15.

[0057] Once the wiring member 50 has been placed on the exposed upper surface of the silencer 20, the loose piece 36 is returned to its original position. The loose piece 36 of the front carpet 30, located rearward of the fixed region 102, may or may not be in contact with the rear carpet 30. At this time, the ends of the first extension portion 53 and the second extension portion 54 are pulled outward from the silencer 20. The third extension portion 55 is pulled out onto the carpet 30 from between the two loose pieces 36 separated from each other by the slit 34C. The space between the two loose pieces 36 serves as the window 35. This positions the wiring member 50 between the silencer 20 and the carpet 30, resulting in the state shown in FIG. 5. The window 35 may be any length that allows a portion of the wiring member 50 to be pulled out. For example, the window portion 35 may be slit-shaped by the two floating pieces 36 being in contact with each other in the left-right direction at their portions forward of the wiring member 50 and at their portions rearward of the wiring member 50. Alternatively, the two floating pieces 36 may be separated from each other in the left-right direction, by which the window portion 35 is open-shaped.

[0058] Next, the silencer 20 and the carpet 30 are fixed to the side of the wiring member 50 in the separation region 104. Fig. 5 shows an example in which a jig 94 is used to drive a tag pin-shaped member 42 to fix the silencer 20 and the carpet 30. The tag pin-shaped member 42 is fixed to the tip of the floating piece 36 on the side opposite the fixing region 102. The silencer 20 and the carpet 30 are fixed via the tag pin-shaped member 42 at a predetermined location in the stacking region, thereby manufacturing the floor wiring module 10.

[0059] The floor wiring module 10 may be made into the floor wiring module 10 and transported to a vehicle assembly factory, and the floor wiring module 10 may be placed on the floor panel 80. The floor laminate 100 may be transported to a vehicle assembly factory, the floor laminate 100 may be placed on the floor panel 80, and the wiring member 50 may be placed on the floor laminate 100 on the floor panel 80 to make the floor wiring module 10.

[0060] <Effects, etc.> According to the floor wiring module 10 configured as described above, the silencer 20 and the carpet 30 are fixed by hot pressing in the first region 12, and therefore can be fixed with a relatively high bonding force. This makes it easy to maintain the silencer 20 and the carpet 30 integrated in the floor wiring module 10, and the silencer 20 and the carpet 30 can be easily arranged on the floor panel 80. Furthermore, because the second region 14 adjacent to the first region 12 is the arrangement region for the wiring member 50, the wiring member 50 can be easily arranged on the laminate of the silencer 20 and the carpet 30, and the wiring member 50 is less likely to be affected by the hot pressing in the first region 12.

[0061] The laminated region also includes a third region 16 that is located adjacent to the second region 14 on one main surface of the silencer 20 and in which the silencer 20 and the carpet 30 are fixed via a mechanical joining member 42. This allows the third region 16 to be easily provided. Furthermore, the first region 12, the second region 14, and the third region 16 can be provided in this order, and the influence of the heat pressing in the first region 12 is less likely to extend to the wiring member 50.

[0062] Furthermore, the area occupied by the first region 12 on one main surface of the silencer 20 is larger than the area occupied by the third region 16. As a result, the area of the first region 12 where the silencer 20 and the carpet 30 are fixed by hot pressing is larger, making it easier to maintain the silencer 20 and the carpet 30 in an integrated state.

[0063] Furthermore, the first region 12 is disposed in an area of the vehicle floor that is more likely to be stepped on by an occupant than the second region 14 and the third region 16. This makes it difficult for the wiring member 50 in the second region 14 and the mechanical joint member 42 in the third region 16 to be stepped on by an occupant. Furthermore, since the silencer 20 and the carpet 30 are fixed in the first region 12 by hot pressing, it is easy to obtain strength against being stepped on by an occupant.

[0064] Additionally, the second region 14 is provided with a wiring holding portion 15 that fixes the wiring member 50 to at least one of the silencer 20 and the carpet 30. This prevents misalignment between the wiring member 50 and the laminate of the silencer 20 and the carpet 30.

[0065] Furthermore, the wiring holding portion 15 is a holding portion via a mechanical joining member, or an adhesive holding portion having a fixing strength weaker than the fixing strength between the silencer 20 and the carpet 30 in the first region 12. This makes it easy to remove the wiring member 50 even when it is necessary to remove the wiring member 50 from the laminate of the silencer 20 and the carpet 30, for example, when repairing the floor wiring module 10.

[0066] Furthermore, the carpet 30 has a window 35 located in an area more inward than the outer edge of one main surface of the silencer 20, and the wiring member 50 has an end that extends onto the carpet 30 through the window 35. This allows the wiring member 50 to be easily connected to equipment located in an area more inward than the outer edge of one main surface of the silencer 20.

[0067] Furthermore, according to the floor laminate 100, the silencer 20 and the carpet 30 are fixed by heat pressing in the fixing region 102, and therefore can be fixed with a relatively high adhesive force. This makes it easy to maintain the silencer 20 and the carpet 30 in an integrated state in the floor wiring module 10, and therefore the silencer 20 and the carpet 30 can be easily arranged on the floor panel 80. Furthermore, because the silencer 20 and the carpet 30 are separated in the separation region 104 that is separate from the fixing region 102, it is easy to arrange the wiring member 50 between the silencer 20 and the carpet 30.

[0068] Furthermore, according to the manufacturing method of the floor wiring module 10, the silencer 20 and the carpet 30 are fixed by heat pressing in a portion of the laminated area, so they can be fixed with a relatively high bonding force. This makes it easy to maintain the silencer 20 and the carpet 30 in an integrated state in the floor wiring module 10, so the silencer 20 and the carpet 30 can be easily arranged on the floor panel 80. Furthermore, because the wiring member 50 is arranged in an area separate from the area where the silencer 20 and the carpet 30 are fixed by heat pressing, the wiring member 50 is less likely to be affected by the heat pressing used to fix the silencer 20 and the carpet 30.

[0069] [Note] Although the laminated region has been described above as including the third region 16, this is not a required configuration. The laminated region does not have to include the third region 16. For example, the loose piece 36 of the carpet 30 may remain unfixed in the vehicle. Also, for example, the loose piece 36 of the carpet 30 may be fixed to a member other than the silencer 20 in the vehicle, and the silencer 20 and the carpet 30 may be held in a state in which the wiring member 50 is sandwiched between them.

[0070] Furthermore, although it has been described above that the wiring holding portion 15 is provided in the second region 14, this is not an essential configuration. For example, the wiring holding portion 15 does not have to be provided in the second region 14.

[0071] Furthermore, although the wiring member 50 has been described above as having an end portion that extends onto the carpet 30 through the window portion 35, this is not a required configuration. For example, the wiring member 50 does not have to have the third extending portion 55. Furthermore, the window portion 35 does not have to be a slit 34, but may be a hole that penetrates the carpet 30, or the like.

[0072] Furthermore, although it has been described above that the carpet 30 is divided into a plurality of pieces and the silencer 20 has a size corresponding to the combined size of the plurality of carpet 30 segments, this is not a required configuration. For example, the silencer may be divided into a plurality of pieces, and the carpet may have a size corresponding to the combined size of the plurality of silencer segments.

[0073] The configurations described in the above embodiments and modifications can be combined as appropriate as long as they are not mutually contradictory. [Explanation of symbols]

[0074] 10 Floor wiring modules 12 First area 14 Second area 15 Wire holding part 16 Third area 20 silencer 30 Carpet 31 1st fixed part 32 Wiring cover 33 Second fixed part 34, 34A, 34B, 34C Slit 35 Window 36 Floating piece 40 Thermal adhesive 42 Tag pin-shaped member (mechanical joining member) 43 Support piece 44 Connecting piece 50 Wiring materials 51 Linear transmission member 52 connectors 53 1st extension part 54 Second extension part 55 Third extension part 56 Branch 60 Adhesive material 80 Floor Panel 82 Rocca 90 Heat press device 91, 92 Press members 100 Floor Laminate 102 Fixed area 104 Separation area

Claims

1. A silencer and a carpet laminated on one main surface of the silencer; a wiring member sandwiched and held between the silencer and the carpet; Equipped with the laminated region of the silencer and the carpet includes a first region where the silencer and the carpet are fixed by heat pressing, and a second region located adjacent to the first region on the one main surface and where the wiring member is located between the silencer and the carpet; the laminated region includes a third region located adjacent to the second region on the one main surface, and in which the silencer and the carpet are fixed via a mechanical joining member; A floor wiring module, wherein the area occupied by the first region on the one main surface is larger than the area occupied by the third region.

2. 2. The floor wiring module according to claim 1, The first area is disposed in an area on the floor of the vehicle that is more likely to be stepped on by an occupant than the second area and the third area.

3. 3. The floor wiring module according to claim 1, The floor wiring module has a wiring holding portion provided in the second region for fixing the wiring member to at least one of the silencer and the carpet.

4. 4. The floor wiring module according to claim 3, A floor wiring module, wherein the wiring holding portion is a holding portion having a mechanical joining member or an adhesive holding portion having a bonding strength weaker than the bonding strength between the silencer and the carpet in the first region.

5. 3. The floor wiring module according to claim 1, the carpet has a window portion located in an area inside an outer edge of the one main surface of the silencer, The wiring member has an end portion that extends onto the carpet through the window portion.

6. A silencer and a carpet laminated on one main surface of the silencer; Equipped with the laminated region of the silencer and the carpet includes a fixed region where the silencer and the carpet are fixed by heat pressing, and a separation region located adjacent to the fixed region on the one main surface and where the silencer and the carpet are separated, the separation region has a region on the one main surface adjacent to the fixing region where a wiring member is disposed, and a region on the one main surface adjacent to the region where the wiring member is disposed and fixed by a mechanical joining member, A floor laminate, wherein the area occupied by the fastening region on the one main surface is greater than the area occupied by the region of the separation region that is fastened by the mechanical joining member.

7. a step of hot pressing and fixing a part of a laminated area of the silencer and the carpet; a step of arranging a wiring member between the silencer and the carpet in another part of the laminated region where the silencer and the carpet are not fixed; In another part of the laminated area, fixing the silencer and the carpet via a mechanical joining member on the opposite side of the wiring member from the part of the laminated area; Equipped with A method for manufacturing a floor wiring module, wherein an area of one main surface of the silencer that is fixed to the carpet by the heat press is larger than an area that is fixed by the mechanical joining member.

Images