JP6264034B2 - Vehicle seat seat routing structure - Google Patents

Description

  The present invention relates to a vehicle seat seat routing structure that routes wiring to a vehicle seat having a seat cushion that can be opened forward.

  In some cases, a seat belt buckle attached to a vehicle seat and to which a tongue, which is a seat belt mounting bracket, is mounted is provided with a seat belt mounting sensor that detects the mounting of the occupant's seat belt. In such a case, it is only necessary to provide a seat belt wearing sensor in the driver's seat, but in the passenger seat, in addition to the seat belt wearing sensor, a load sensor for detecting whether or not an occupant is seated is incorporated in the seat cushion. The Unlike the driver's seat where the occupant is always seated when the vehicle is traveling, the passenger seat is not necessarily seated in the passenger's seat or other seats, and it is necessary to activate the seat belt sensor when the occupant is not seated. Because there is no.

  Therefore, from the seat belt buckle of the passenger seat, wiring (harness, cable, etc.) must be routed along the side surface of the seat and connected to a load sensor in the seat cushion. Only when the signal indicating the seating of the occupant is received from the load sensor, the seat belt mounting sensor detects the mounting of the seat belt. For example, in Patent Document 1, an electrical wiring mounting member is provided outside a structural member (cushion side frame) positioned at the lower side of the main body member of the seat, and the wiring extending from the buckle of the seat belt is held.

JP 2012-86716 A

  By the way, when the seat cushion on which the occupant sits is a type that can lift the rear part and open forward, the space under the seat cushion exposed by opening the seat cushion forward can be used as the storage space. it can. It is also possible to tilt the seat back forward and use the seat back as a table, or as an extension of the luggage compartment when carrying a long object.

  In the case of a seat with only a slide rail that moves the seat back and forth, it is only necessary to route a wiring with a sufficient length in consideration of only the back and forth movement of the seat. When a technique such as Patent Document 1 is applied to a seat having a cushion, the following problem occurs. First, as a general problem that is not limited to an open / close seat cushion, a holding tool (resin clamp or the like, which is different from a cushion side frame that is a metal structural member). Wiring attachment member) is required separately. In addition, it is necessary to provide a hole or the like in the cushion side frame in order to provide such a holder. As a result, the number of parts and the number of assembly steps increase. The cushion side frame is usually covered with a resin cover. However, if wiring is routed outside the cushion side frame, the space between the cushion side frame and the cover is restricted.

  However, if an electrical wiring mounting member is provided inside the cushion side frame and the wiring is routed, a problem peculiar to the openable seat cushion occurs. That is, when the seat cushion is opened and closed, the wiring is sandwiched between the seat cushion and the cushion side frame, and the wiring may be disconnected or damaged. In addition, the storage space under the seat is narrowed. A storage box is often provided in the storage space, but if the storage space is narrowed, the capacity of the storage box is reduced.

  In view of such a problem, the present invention routes a wiring to a vehicle seat having a seat cushion that can be opened forward without causing disconnection or damage due to opening and closing of the seat cushion. An object of the present invention is to provide a vehicle seat seat routing structure that does not reduce the storage space of the vehicle.

  In order to solve the above-described problems, a representative configuration of the present invention performs routing on a vehicle seat having a seat cushion on which an occupant sits and which can be lifted and opened forward. In the vehicle seat seat routing structure, a cushion side frame that forms a side surface of the storage space under the seat cushion, a seat belt buckle that is pivotally attached to the cushion side frame and tilts forward or stands rearward. A wiring extending from the seat belt buckle and a cover arranged outside the storage space, the cover separating the cushion side frame from the seat belt buckle when tilted forward, and between the cover and the storage space fixed to the cover And a holding portion for holding the wiring.

  According to the above configuration, the holding portion is fixed to the cover between the cover and the storage space, not the cushion side frame that configures the side surface of the storage space. Therefore, when the seat cushion is opened and closed, the wiring is not sandwiched between the seat cushion and the cushion side frame, and disconnection or damage can be prevented, and the storage space under the seat cushion is not narrowed by the holding portion.

  The cover is formed with a stepped portion that is recessed toward the storage space and accommodates a seat belt buckle when tilted forward, and the holding portion is a square space generated by a recess at the front end of the stepped portion. It is preferable to include a first holding part that is arranged in the board and holds the wiring. According to this structure, the 1st holding | maintenance part which comprises a holding | maintenance part is normally arrange | positioned in the location used as a dead space called the square space produced by the dent of the front end of a level | step-difference part. Thereby, the extension of the holding portion to the storage space side is suppressed as much as possible.

  The first holding part may be formed integrally with the cover. This makes it possible to reduce the number of parts and the number of assembly steps.

  The first holding part may be arranged in a brace in a square space. By arranging the first holding portion in a square space in a square space, the base rigidity of the first holding portion can be increased. Further, the rigidity of the cover in the square space generated at the front end of the stepped portion is improved, and deformation of the cover itself can be prevented.

  The holding portion may include a second holding portion that is fixed to the step portion and holds the wiring between the step portion and the storage space. As a result, it is possible to prevent loosening of the wiring when the seat belt buckle is tilted forward, and to more suitably prevent the wiring from entering the storage space.

  A flange that extends toward the storage space and covers the first holding portion may be formed on the upper edge of the cover. Thereby, it is possible to prevent the wiring from being exposed when the seat cushion is opened forward, and to improve the appearance. Further, it is possible to more fully prevent the wiring from being sandwiched between the seat cushion and the cushion side frame and other parts when the seat cushion is opened and closed. Further, when an article such as a storage box is taken in and out of the storage space under the seat cushion, the wiring does not come into contact with the article, and the article is not obstructed.

  According to the present invention, wiring is routed to a vehicle seat having a seat cushion that can be opened forward without causing disconnection or damage due to opening and closing of the seat cushion, and the storage space under the seat cushion is narrowed. It is possible to provide a vehicle seat seat routing structure that does not occur.

It is a perspective view showing the whole seat arrangement arrangement for vehicles concerning this embodiment. FIG. 2 is an enlarged view of the vicinity of a seat belt buckle shown in FIG. It is AA sectional drawing of FIG. FIG. 3 is a view showing a state where the seat belt buckle shown in FIG. 2 is tilted forward. It is an enlarged view of the 1st cover of FIG.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the embodiments are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted, and elements not directly related to the present invention are not illustrated. To do.

  FIG. 1 is a perspective view showing an entire vehicle seat seat routing structure according to the present embodiment. 1A shows a state in which a seat cushion 110 of a vehicle seat (hereinafter referred to as a seat 100) is closed, and FIG. 1B shows a state in which the seat cushion 110 is opened forward. Yes. In all the drawings of the present application, the arrow F and the arrow R represent the vehicle front and the vehicle rear, respectively. As shown in FIG. 1A, the seat 100 according to the present embodiment has a headrest 104 that supports the head of an occupant disposed on an upper portion of a seat back 102 that supports the upper body of an occupant (not shown). Yes. A seat cushion 110 on which an occupant is seated is disposed below the seat back 102.

  As shown in FIG. 1B, the seat cushion 110 of the seat 100 according to the present embodiment can be opened forward by lifting its rear part. Thereby, articles such as the storage box 106 can be stored in the storage space 133 provided under the seat cushion 110. Although not shown, when the seat back 102 is tilted forward with the seat cushion 110 opened forward as shown in FIG. 1B, the seat back 102 can be used instead of a table or a long object is carried. It can also be used as an extension of the cargo compartment. In the present embodiment, the seat 100 used as the passenger seat will be described as an example. However, the present invention is not limited to this, and the seat 100 may be a driver's seat or another seat.

  As shown in FIGS. 1A and 1B, a resin-made first cover 130a and second cover 130b are disposed on both sides of the seat cushion 110.

  FIG. 2 is an enlarged view of the vicinity of the seat belt buckle 120 shown in FIG. FIG. 3 is a cross-sectional view taken along the line AA of FIG. 3 is a cross-sectional view taken along the line AA of FIG. 2, but the seat cushion 110 that is opened forward and is not shown in FIG. 2 and the storage box 106 that is removed and is not shown (FIG. 1 ( b)) is illustrated in FIG. 3 for the convenience of understanding the present embodiment. That is, FIG. 3 shows a state similar to FIG. 1A in which the storage box 106 is stored in the storage space 133 and the seat cushion 110 is closed.

  As shown in FIGS. 2 and 3, the seat 100 includes a metal cushion side frame 131, which constitutes a side surface of the storage space 133 below the seat cushion 110. That is, as shown in FIG. 3, an article such as the storage box 106 can be stored in the storage space 133 inside the cushion side frame 131. In FIG. 2, for the sake of clarity, the first cover 130a is hatched to distinguish it from the cushion side frame 131 on the inner side.

  As shown in FIG. 3, the first cover 130 a is disposed outside the storage space 133. “Outside the storage space 133” means that the storage space 133 defined by the cushion side frame 131 does not protrude. Therefore, the 1st cover 130a should just exist in the outer side of the cushion side frame 131 so that the lower part may be. Further, the first cover 130a may be positioned so as to overlap with the cushion side frame 131 in the vehicle width direction (left and right direction in FIG. 3) as long as the upper end of the first cover 130a does not protrude into the storage space 133.

  A seat belt tongue (not shown) is mounted on the seat belt buckle 120 shown in FIG. The seat belt buckle 120 is attached to the tip of the buckle stay 121 and is attached to the cushion side frame 131 via the buckle stay 121 so as to be rotatable. Therefore, the seat belt buckle 120 can tilt forward or stand rearward.

  A harness 122 extends from the seat belt buckle 120. The harness 122 is connected to a seat belt wearing sensor (not shown) in the seat belt buckle 120. The seat belt mounting sensor is a sensor that detects whether or not a tongue is mounted on the seat belt buckle 120.

  FIG. 4 is a view showing a state in which the seat belt buckle 120 shown in FIG. 2 is tilted forward. For the sake of clarity in FIG. 4, the first cover 130 a is also shaded to distinguish it from the cushion side frame 131. FIG. 5 is an enlarged view of the first cover 130a of FIG. 2, and members other than the first cover 130a are not shown for easy understanding.

  As shown in FIG. 4, the first cover 130 a separates the cushion side frame 131 from the seat belt buckle 120 when the seat belt buckle 120 tilts forward. On the other hand, as shown in FIGS. 2 and 5, a first holding portion 134 that holds the harness 122 is fixed to the back surface (inside) 132 of the first cover 130 a. As shown in FIG. 3, the first holding part 134 holds the harness 122 (not shown in FIG. 3) between the first cover 130 a and the storage space 133.

  According to the above configuration, as shown in FIG. 3, the first holding portion 134 is fixed to the first cover 130 a instead of the cushion side frame 131 that forms the side surface of the storage space 133, and the first cover 130 a and the storage space 133. Since the harness 122 is held by the first holding part 134, the harness 122 does not protrude into the storage space 133. Therefore, when the seat cushion 110 is opened and closed, the harness 122 is not sandwiched between the seat cushion 110 and the cushion side frame 131 and other components, and the disconnection or breakage of the harness 122 can be prevented. Further, the storage box 106 stored in the storage space 133 does not interfere with the harness 122. Further, the storage space 133 under the seat cushion 110 is not narrowed by the first holding part 134.

  As shown in FIGS. 2 and 5, a step portion 136 is formed in the first cover 130 a of the present embodiment. The stepped portion 136 is recessed toward the storage space 133 and accommodates the seat belt buckle 120 when tilted forward as shown in FIG. Thus, the stepped portion 136 prevents interference between the seat belt buckle 120 and the first cover 130a when tilted.

  2 and 4, the feature of the present embodiment is that the above-described first holding portion 134 is disposed in a square space 136b generated by the depression of the front end portion 136a of the stepped portion 136. . By projecting the first holding part 134 to a place that is normally a dead space such as the square space 136b, the extension of the first holding part 134 and the harness 122 to the storage space 133 side is suppressed as much as possible.

  As shown in FIGS. 2 and 3, a connector 124 (also referred to as a coupler) is attached to the first holding portion 134. The connector 124 is a member that connects the harness 122 extending from the seat belt buckle 120 to a harness (not shown) coming from a load sensor (not shown). Since the connector 124 is also a bulky member, the protrusion of the connector 124 to the storage space 133 side is suppressed as much as possible by arranging it in the square space 136b that becomes a dead space. Since FIG. 5 shows the first cover 130a as a single unit, the connector 124 is not shown in FIG.

  As shown in FIG. 5, the 1st holding | maintenance part 134 is arrange | positioned at the square-shaped space 136b in the form of a brace. That is, the first holding part 134 is arranged so as to span between the back surface of the front end part 136a of the stepped part 136 and the back surface 132 of the first cover 130a continuous therewith. Thereby, the rigidity of the base of the 1st holding | maintenance part 134 can be improved. Further, the rigidity of the first cover 130a in the square space 136b generated in the front end portion 136a of the stepped portion 136 is improved, and deformation of the first cover 130a itself can be prevented.

  In the present embodiment, the first holding part 134 is formed integrally with the first cover 130a. As a result, an increase in the number of parts and the number of assembling steps can be avoided, and the manufacturing cost can be reduced.

  In the present embodiment, as shown in FIGS. 2 and 5, the second holding portion 138 is fixed to the center 136 c of the stepped portion 136 in the vehicle front-rear direction. The second holding portion 138 is a member that holds the harness 122 between the stepped portion 136 and the storage space 133. Thus, the harness 122 can be routed from the seat belt buckle 120 to the first holding portion 134 along the center 136c of the stepped portion 136. Therefore, the slack of the harness 122 when the seat belt buckle 120 is tilted forward can be suitably prevented, and the overhang of the harness 122 into the storage space 133 can be more suitably suppressed.

  Furthermore, in this embodiment, as shown in FIGS. 2 and 5, a flange 140 is formed on the upper edge of the first cover 130a. The flange 140 extends toward the storage space 133 and covers the first holding part 134. Since the flange 140 is a part of the first cover 130a, the flange 140 is outside the storage space 133 as shown in FIG. The flange 140 extends in the vehicle front-rear direction, and not only covers the first holding part 134 but is also formed continuously at the upper edge of the stepped part 136 and covers the second holding part 138.

  Therefore, the flange 140 also covers the harness 122 held by the first holding part 134 and the second holding part 138, and the harness 122 is not exposed even if the seat cushion 110 is opened forward. Therefore, it is possible to maintain a good appearance. Further, since the harness 122 is covered by the flange 140, the harness 122 is more fully prevented from being pinched by the seat cushion 110 and the cushion side frame 131 and other components when the seat cushion 110 is opened and closed. Further, when an article such as the storage box 106 is taken in and out of the storage space 133 below the seat cushion 110, it is difficult for the article and the harness 122 to come into contact with each other, so that the article is not obstructed.

  In the present embodiment, the flange 140 that covers both the first holding part 134 and the second holding part 138 is illustrated, but the present invention is not limited to this, and the configuration in which the flange 140 is provided only in the vicinity of one of the holding parts. It is good. In the present embodiment, as shown in FIGS. 2 and 5, both the first holding part 134 and the second holding part 138 are integrally formed with the first cover 130a, but this is not limited to this. Either one or both of the holding portions may be constituted by a separate part from the first cover 130a.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the example which concerns. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  INDUSTRIAL APPLICABILITY The present invention can be used for a vehicle seat seat routing structure in which wiring is routed to a vehicle seat having a seat cushion that can be opened forward.

DESCRIPTION OF SYMBOLS 100 ... Seat seat, 102 ... Seat back, 104 ... Headrest, 106 ... Storage box, 110 ... Seat cushion, 120 ... Seat belt buckle, 122 ... Harness, 124 ... Connector, 130a ... First cover, 130b ... Second cover, 131 ... Cushion side frame, 133 ... Storage space, 134 ... First holding part, 136 ... Stepped part, 136b ... Square space, 138 ... Second holding part, 140 ... Flange

Claims (6)

In a vehicle seat seat routing structure in which a seat cushion on which a passenger sits has a seat cushion that can be lifted rearward and opened forward,
A cushion side frame constituting a side surface of the storage space under the seat cushion;
A seat belt buckle that is pivotally attached to the cushion side frame and tilts forward or stands rearward;
Wiring extending from the seat belt buckle;
A cover disposed outside the storage space, the cover separating the cushion side frame from the seat belt buckle when tilted forward;
A storage box stored in the storage space and capable of storing articles;
A holding part fixed to the cover and holding the wiring between the cover and the storage space ;
In a cross-sectional view observed from the front of the vehicle, wherein the holding unit includes a feature that you have disposed above said cushion side frame at a position spaced from the storage box in the space between the storage box and the cover Car seat seat routing structure. The cover is formed with a step portion that accommodates the seat belt buckle when it is recessed toward the storage space and tilted forward.
2. The vehicle seat seat routing according to claim 1, wherein the holding portion includes a first holding portion that is disposed in a square space formed by a recess at a front end of the stepped portion and holds the wiring. Construction.   The vehicle seat seat routing structure according to claim 2, wherein the first holding portion is formed integrally with the cover.   4. The vehicle seat seat routing structure according to claim 2, wherein the first holding portion is arranged in a bracing manner in the square space. 5. The holding portion includes a vehicle seat wiring according to claim 2, characterized in that it comprises a second holding portion for holding the wire between the step portion fixed step portion and the accommodating space Construction.   The vehicle seat according to any one of claims 2 to 4, wherein a flange that extends toward the storage space and covers the first holding portion is formed on an upper edge of the cover.

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