Vehicle structure

Abstract

To provide a vehicle structure which can properly prevent, by simple means, a harness routing through an undersurface area of a seat cushion of a vehicle seat from sagging due to sliding of the vehicle seat.SOLUTION: A vehicle structure A comprises: a vehicle seat S which is slidably installed on a floor part 1 of a vehicle; a harness 6 including a seat undersurface routing part 6a routed on an undersurface area of a seat cushion 3 of the vehicle seat S, and an extending part 6b extending toward a harness installation part 18 at a floor part 1 side, and connected to one end side of the seat undersurface routing part 6a; and a flexible band 7 which is arranged at the undersurface area of the seat cushion 3 and is elastically stretchable in a slide direction of the vehicle seat S. The flexible band 7 bridges and connects a part Na of the harness 6 with a fixed position of the vehicle seat S so that tension force F toward the seat undersurface routing part 6a side is always applied to the extending part 6b of the harness 6.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a vehicle structure such as an automobile, and more particularly to a vehicle structure capable of suppressing undue slack in a harness arranged in the underside area of ​​a vehicle seat. [Background technology]

[0002] Specific examples of vehicle structures are described in Patent Documents 1 and 2. In the vehicle structures described in these documents, a harness is connected to electrical equipment attached to a vehicle seat installed in the vehicle. The harness is routed along a path that runs from a floor portion of the vehicle through an underside area of ​​a seat cushion of the vehicle seat to the electrical equipment. Meanwhile, the vehicle seat is slidable in the fore-and-aft direction of the vehicle by using slide rails. In such a vehicle structure, it is desirable to prevent the harness from being unduly pinched or from being subjected to an excessive load when the vehicle seat is slid. Therefore, in Patent Documents 1 and 2, a guide means for guiding the movement of the harness in a predetermined direction when the vehicle seat is slid, or a support means for allowing a predetermined portion of the harness to rotate freely is provided.

[0003] However, there is still room for improvement in the above-mentioned conventional techniques.

[0004] That is, a part of the harness has a seat underside routing portion routed in the underside area of ​​the seat cushion, and one end of this seat underside routing portion is connected to an extension portion that extends from the underside area of ​​the seat cushion to the vehicle floor. This extension portion becomes loose when the vehicle seat is slid forward or backward. For this reason, there is a risk that the loosened portion of the harness will hang down significantly and come into contact with the floor below the vehicle seat or with members and devices mounted on the floor. There is a demand for an appropriate prevention of such a risk, but no means that can adequately meet such a demand has been proposed in the past.

[0005] Patent Document 3 describes a means for preventing the harness from sagging by supporting a part of the harness with a seat cushion cover. However, in the means of Patent Document 3, another part of the harness is an extension part that protrudes from the seat cushion cover. Therefore, as in the cases of Patent Documents 1 and 2, there is a risk that the extension part will become loose and sag when the vehicle seat is slid. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2020-142559 A [Patent Document 2] Patent Publication No. 2023-57585 [Patent Document 3] Patent No. 6366446 Summary of the Invention [Problem to be solved by the invention]

[0007] The present invention was devised in light of the circumstances described above, and has as its object to provide a vehicle structure that can appropriately prevent, by simple means, a harness routed through the underside area of ​​the seat cushion of a vehicle seat from becoming significantly slack when the vehicle seat is slid, and dangling down onto the floor or components and equipment mounted on the floor. [Means for solving the problem]

[0008] In order to solve the above problems, the present invention provides the following technical solutions.

[0009] The vehicle structure provided by the present invention comprises a vehicle seat that is slidably mounted on a floor portion of the vehicle, and a harness having a seat underside routing portion routed in the underside area of ​​a seat cushion of the vehicle seat, and one end side of the seat underside routing portion is connected to an extension portion that extends toward a harness mounting portion on the floor portion side, and further comprises an elastic band that is located in the underside area of ​​the seat cushion and is elastically stretchable in the sliding direction of the vehicle seat, and the elastic band bridges and connects a portion of the harness to a fixed position on the vehicle seat so as to constantly apply a pulling force to the extension portion of the harness toward the seat underside routing portion.

[0010] According to this configuration, the following effects can be obtained. That is, the extension connected to one end of the harness's seat underside routing portion is a portion that may become loose when the vehicle seat is slid, but according to the above configuration, a pulling force toward the seat underside routing portion is constantly applied to the extension by using an elastic band that is elastically stretchable in the vehicle seat sliding direction, which prevents the harness's extension portion from becoming loose and appropriately prevents the harness from sagging onto the floor or onto members and devices mounted on the floor. In the present invention, an elastic band is used as a means for preventing the harness from sagging, and this elastic band is set to a state in which a part of the harness is bridged and connected to a fixed position on the vehicle seat. Therefore, such a configuration is simple and does not require the use of special and expensive equipment, and is advantageous in terms of improving productivity, reducing manufacturing costs, and reducing the weight of the vehicle.

[0011] Other features and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings. [Brief description of the drawings]

[0012] [Figure 1]1 is a schematic cross-sectional view showing a main portion of an example of a vehicle structure according to the present invention; [Diagram 2] FIG. 2 is an enlarged schematic cross-sectional view of a main part of FIG. [Diagram 3] FIG. 3 is a schematic bottom view of FIG. 2. [Figure 4] 4 is a schematic cross-sectional view of a main portion showing an example of a state in which the vehicle seat is adjusted to a position further forward than in FIGS. 1 to 3. FIG. [Diagram 5] FIG. 5 is a schematic bottom view of FIG. [Figure 6] 6 shows the elastic band shown in FIG. 1 to FIG. 5, (a) is a side view of the main part in an unused deployed state, (b) is a plan view of (a), (c) is a VIc-Vic end view of (a), and (d) is a side view of the main part in a used state. [Figure 7] 7 is a side view of a main part of the elastic band in a different state of use from that in FIG. 6(d). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

[0014] The vehicle structure A shown in Figure 1 includes a floor portion 1 of the vehicle cabin, a vehicle seat S mounted on this floor portion 1, a harness 6 attached to the vehicle seat S, and an elastic band 7 for preventing the harness 6 from sagging.

[0015] The floor portion 1 of the vehicle compartment includes a floor panel 10 (front floor panel portion) that closes the lower portion of the vehicle compartment 19, and a vehicle width direction (a direction perpendicular to the paper surface of FIG. 1) is provided on the upper surface of the floor panel 10. The floor section 1 has a configuration in which first and second floor cross members 11, 12 extending in a direction perpendicular to the vehicle body (i.e., toward the center of the vehicle) are joined together. The vehicle is, for example, a hybrid vehicle or an electric vehicle, and a battery 2 is mounted in the floor section 1 between the first and second floor cross members 11, 12 so as to be located in the area below the vehicle seat S.

[0016] The vehicle seat S is, for example, a driver's seat. A passenger seat can also be configured similarly to the vehicle seat S of this embodiment. The vehicle seat S includes a seat cushion 3 and a seat back 4, which are slidable in the front-rear direction of the vehicle along slide rails 5. The slide mechanism of the vehicle seat S is the same as that of a conventionally known mechanism, and therefore a detailed description thereof will be omitted. However, the lower part of a seat cushion frame 30 constituting the seat cushion 3 is slidable along the slide rails 5, and can be fixed at a desired position by an appropriate locking mechanism (not shown).

[0017] As shown in Fig. 3, a pair of left and right slide rails 5 are provided spaced apart in the vehicle width direction, and each slide rail 5 has brackets 51, 52 on the front and rear sides. As shown in Fig. 1, these brackets 51, 52 are attached to the first and second floor cross members 11, 12, so that the slide rail 5 is attached so as to straddle the upper sides of the first and second floor cross members 11, 12.

[0018] 2, the seat cushion 3 includes a seat cushion pad portion 31 and a seat cushion cover 32 in addition to a seat cushion frame 30. The seat cushion frame 30 is a hard frame made of metal or the like that supports the seat cushion pad portion 31, and as described above, in addition to having a portion at its lower portion that can slide along the slide rail 5, the seat cushion frame 30 includes two stays 30a, 30b such as metal pipes, and a lower wall plate portion 30c that bridges and connects between these stays 30a, 30b. The seat cushion pad portion 31 is placed on the upper side of the two stays 30a, 30b and the lower wall plate portion 30c and is supported by them. The seat cushion cover 32 is a member that covers the outer surfaces such as the upper surface and front surface of the seat cushion pad portion 31, and in this embodiment, is also provided on the underside area of ​​the seat cushion 3. The seat cushion cover 32 has a lower front side area 32a located on the underside area of ​​the seat cushion 3 and extending from the front part of the seat cushion 3 to the rear, and a lower rear side area 32b extending from the rear part of the seat cushion 3 to the front, and these areas 32a, 32b are joined together by using, for example, a hook-and-loop fastener 38 so as to be freely attached and detached. The light-shaded portions in Figs. 3 and 5 are portions of the lower rear region 32b of the seat cushion cover 32 that are located on the vehicle front side relative to a seat back cover 42 (halftone dot pattern portion) described later.

[0019] The seat back 4 includes a seat back frame 40 including stays 40a, 40b, a seat back pad portion 41 supported by the seat back frame 40, and a seat back cover 42 covering the outer surface of the seat back pad portion 41. The seat back cover 42 extends to the lower surface area of ​​the seat cushion 3 and has a lower extended area 42a overlapping the rear lower surface of the lower rear area 32b of the seat cushion cover 32. One or more fastening bands 44, for example, loop strings, are attached to the lower extended area 42a. The fastening bands 44 are hooked to hook-shaped hook portions 30e provided on the seat cushion frame 30, thereby preventing the lower extended area 42a from being rolled up and thus preventing the entire seat cushion cover 32 from being displaced. The fastening bands 44 are preferably made of elastically stretchable rubber, but are not limited thereto.

[0020] Harness 6 is for the seat belt reminder or the seat side airbag. The harness 6 is a supply and / or signal transmission harness and has flexibility. In the present embodiment, an example in which only one harness 6 is arranged is shown, but a configuration in which a plurality of harnesses 6 are arranged may also be used.

[0021] The harness 6 has a seat underside routing portion 6a routed in the underside region of the seat cushion 3, and an extension portion 6b connected to one end of the seat underside routing portion 6a. As shown in Figures 2 and 3, most of the seat underside routing portion 6a is located above a rearward region 32b on the underside of the seat cushion cover 32 and is supported by this region 32b. Although not shown in the drawings, the other end of the seat underside routing portion 6a extends toward an electrical component for a seat belt reminder or a seat side airbag.

[0022] The extension portion 6b of the harness 6 is a portion that extends from one end side of the wiring portion 6a on the underside of the seat toward a harness attachment portion 18 on the floor portion 1 side. The harness attachment portion 18 is configured, for example, by attaching a bracket 18a for supporting and fixing the harness to the slide rail 5. A portion of the harness 6 forward of the extension portion 6b extends toward a controller (not shown) separately mounted on the vehicle.

[0023] The extension portion 6b of the harness 6 protrudes downward and forward from the rearward region 32b of the underside of the seat cushion cover 32. In this embodiment, as shown in Figs. 3 and 5, a method for causing this protrusion is adopted in which a turn-up portion 32e (or a cut-out portion) is provided by turning up a part of the side of the seat cushion cover 32, and a part of the harness 6 is pulled out from the turn-up portion 32e to the outside of the seat cushion cover 32. However, the present invention is not limited to this, and for example, the extension portion 6b may be configured to protrude directly outward from the side of the rearward region 32b of the underside of the seat cushion cover 32 without providing the turn-up portion 32e.

[0024] The elastic band 7 is located in the underside area of ​​the seat cushion 3 and is a member that constantly applies a pulling force F toward the rear of the vehicle to a portion of the harness 6 described below so as to prevent the extension portion 6b of the harness 6 from sagging. More specifically, as shown in Fig. 6, the stretchable band 7 includes a stretchable band main body 70 made of a band-shaped rubber that is elastically stretchable in the longitudinal direction, and a flexible harness support part 71 connected to the tip of the stretchable band main body 70. The harness support part 71 includes a soft band-shaped main body 71a made of, for example, foamed resin, both sides of which are covered with base fabrics 71b, 71c, and includes a pair of detachable engaging members 72a, 72b. The engaging members 72a, 72b are, for example, a pair of male and female hook buttons.

[0025] As shown in Fig. 6(d), the harness supporting part 71 can be set in a loop shape by folding it in half and then engaging the pair of engaging members 72a, 72b with each other. This allows the harness 6 to be held by the harness supporting part 71. Since the harness supporting part 71 is made of a soft band-shaped main body 71a made of foamed resin, it is possible to reduce the generation of abnormal noise caused by changes in the state of the harness 6 when the vehicle seat S is slid. When there are a plurality of harnesses 6, the plurality of harnesses 6 can be collectively held by a harness supporting portion 71 as shown in FIG.

[0026] As shown in Figs. 2 and 3, the base end 7a of the stretchable band 7 is attached to the lower extended region 42a of the seat back cover 42 by means of sewing or other means. Meanwhile, the tip end of the stretchable band 7 is connected to a specific portion Na at or near the boundary between the extended portion 6b of the harness 6 and the seat underside routing portion 6a. With this configuration, the stretchable band 7 bridges and connects the specific portion Na of the harness 6 to the lower extended region 42a of the seat back cover 42. Thus, a pulling force F is constantly applied to the extension portion 6b of the harness 6 toward the rear side of the vehicle (toward the wiring portion 6a under the seat). The location of the lower extension region 42a of the seat back cover 42 where the base end 7a of the elastic band 7 is attached corresponds to an example of the "fixed position of the vehicle seat" in the present invention (claim 1). The specific portion Na corresponds to an example of the "part of the harness" in the present invention.

[0027] The stretchable band 7 is provided so that a portion of it passes over (overlaps) the upper side of the fixing band 44 of the seat back cover 42. With this configuration, as described later, it is possible to prevent the stretchable band 7 itself from sagging.

[0028] In the vehicle structure A of this embodiment, as shown in Fig. 3 and Fig. 5, first and second harness guides 37a, 37b are provided as harness guide means in the seat underside wiring portion 6a (omitted in other figures). These first and second harness guides 37a, 37b are both provided on the seat cushion frame 30, and are located on the opposite side of the extension portion 6b of the harness 6 across the elastic band 7 in the left-right width direction (the same direction as the vehicle width direction) of the vehicle seat S. Based on this configuration, in this embodiment, the lengths La, Lb from the first harness guide 37a to the tip of the elastic band 7 change smoothly between the case of Fig. 3 in which the vehicle seat S is disposed toward the rear and the case of Fig. 5 in which the vehicle seat S is disposed toward the front. It is possible to prevent any other significant changes from occurring in the harness 6.

[0029] Next, the operation of the above-mentioned vehicle structure will be described.

[0030] As described above, the vehicle seat S can slide along the slide rails 5, and can be appropriately adjusted to a rearward position as shown in Figs. 1 to 3, or a forward position as shown in Figs. 4 and 5. When the vehicle seat S is slid to adjust the position, there is a risk that the extension portion 6b of the harness 6 may become loose. However, according to this embodiment, a pulling force F toward the seat underside wiring portion 6a is constantly applied to the extension portion 6b of the harness 6 by using the elastic band 7. This prevents the extension portion 6b of the harness 6 from becoming significantly loose, and appropriately prevents the harness 6 from sagging down onto the battery 2.

[0031] Most of the seat underside routing portion 6a of the harness 6 is located above the rearward lower region 32b of the seat cushion cover 32, and is supported by this rearward lower region 32b. This appropriately prevents the seat underside routing portion 6a from sagging down onto the battery 2. Even if the elastic band 7 becomes loose due to aging or the like, the elastic band 7 is supported by the fixing band 44 of the seat back cover 42, and therefore the elastic band 7 is appropriately prevented from sagging down onto the battery 2.

[0032] In addition, in this embodiment, the elastic band 7 is used as a means for preventing the harness 6 from sagging, and this elastic band 7 has a simple structure, is lightweight, and can be manufactured at low cost. Moreover, the elastic band 7 can be easily set to bridge and connect the specific portion Na of the harness 6 to the lower extension area 42a of the seat back cover 42. Therefore, according to this embodiment, it is possible to preferably improve productivity, reduce manufacturing costs, and reduce the vehicle weight. Furthermore, since the base end 7a of the extensible band 7 is attached to the lower extension region 42a of the seat back cover 42, the extensible band 7 is expected to have the effect of suppressing flapping of the seat back 4.

[0033] The present invention is not limited to the above-described embodiment, and the specific configuration of each part of the vehicle structure according to the present invention can be freely designed and modified in various ways within the intended scope of the present invention.

[0034] The elastic band may be elastically stretchable in the direction of the vehicle seat slide, and may be, for example, a rubber band with one end tied to the harness. The elastic band may also be made of a material other than rubber, such as a spring. The elastic band is set to bridge and connect a part of the harness to the "fixed position of the vehicle seat", but the "fixed position of the vehicle seat" is not limited to the lower extension area of ​​the seat back cover. For example, it may be a part of the seat back cover other than the lower extension area, a seat cushion cover, a seat cushion frame, or any other suitable part.

[0035] When carrying out the present invention, it is preferable to prevent the stretchable band itself from sagging due to aging, etc. As a means for achieving this, instead of the means for supporting the stretchable band 7 (part of it) by arranging it above the fixing band 44 of the seat back cover 42 as in the above-mentioned embodiment, the following means can be adopted. That is, it is possible to adopt a means for arranging the stretchable band 7 above a portion of the seat back cover 42 other than the fixing band 44, or a means for arranging the stretchable band 7 above the seat cushion cover 32 (the rearward region 32b on the lower surface side).

[0036] In the above-described embodiment, a harness extending from the front side of the vehicle to the rear side of the vehicle has been described as an example, but the harness may extend in the opposite direction, and may also extend in the vehicle width direction. The above-described embodiment has been described as an example of preventing the harness from drooping onto a battery (charging device) installed in the space below the vehicle seat, but the presence of a battery is not a mandatory requirement, and the present invention is also useful in cases where the harness is simply prevented from drooping onto the floor portion or onto a tray mounted on the floor portion. The vehicle seat referred to in this invention is not limited to the driver's seat or passenger seat at the front of the vehicle, but may be a rear seat, etc., and as long as it is a slidable vehicle seat, the specific position or type is not limited, and the present invention is applicable to it. There are no limitations on the specific type or number of harnesses. [Explanation of symbols]

[0037] A. Vehicle Structure S vehicle seat Na Specific part (part of the harness) 1 Floor section 18 Harness attachment point 3 Seat cushion 6. Harness 6a Seat underside wiring section (harness) 6b Extension (of harness) 7 Elastic Band

Claims

[Claim 1] A vehicle seat slidably provided on a floor portion of the vehicle; a harness having a seat underside routing portion routed in a lower surface area of ​​a seat cushion of the vehicle seat, and an extension portion extending toward the harness attachment portion on the floor portion side is connected to one end side of the seat underside routing portion; A vehicle structure comprising: The seat cushion further includes an elastic band that is located in a lower surface area of ​​the seat cushion and is elastically stretchable in a sliding direction of the vehicle seat, A vehicle structure characterized in that the elastic band bridges and connects a portion of the harness to a fixed position on the vehicle seat so as to constantly apply a pulling force to the extension portion of the harness toward the seat underside routing portion.

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