JP6287305B2 - 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.

  There are cases where an electronic device such as a load sensor or a heater for detecting whether or not an occupant is seated is incorporated in a seat cushion of a vehicle seat. In order to supply signals and electric power to these electronic devices, it is necessary to draw out the wiring extending from the electronic device from the lower surface of the seat cushion and connect it to the wiring coming from the vehicle body side such as the vehicle floor (for example, Patent Document 1). ).

JP 11-105641 A

  By the way, when the seat cushion on which the occupant is seated is a type that can lift the rear portion and open forward, the space under the seat cushion exposed by opening the seat cushion forward is used as the storage space. be able to. 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 having only a slide rail for moving the seat back and forth as in Patent Document 1, it is only necessary to route a wiring having a sufficient length in consideration of only the back and forth movement of the seat. However, in the case of a seat with an openable seat cushion as described above, it is necessary to route the wiring so that it can follow the movement of the seat cushion.

  In order to follow the opening and closing movement of the seat cushion, it is effective to arrange the wiring with a long wiring and a margin. However, if the wiring is lengthened unplanned, the wiring naturally becomes loose. Then, when opening and closing the seat cushion, there is a concern that the wiring becomes an obstacle and the opening and closing operation of the seat cushion becomes difficult, and the operability is deteriorated. Further, if the wiring is loosened, the wiring may be caught between the seat cushion and other components or may be caught, which may easily cause disconnection or breakage.

  SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle seat seat routing structure that maintains the opening / closing operability of the seat cushion of the vehicle seat and does not cause the disconnection / breakage of the wiring. .

  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 seat arrangement structure for a vehicle seat, the bracket disposed along the side edge of the lower surface of the seat cushion and the bracket and the front portion of the seat cushion are connected to each other so that the seat cushion is moved forward by being rotatably supported by the bracket. A hinge that is pivoted to open, an electronic device wiring that is pulled out from the lower surface of the seat cushion and routed forward along the lower surface, and an electronic device provided at the same height behind the rotation center of the hinge of the bracket A first fixing portion for fixing the wiring for the device, and the wiring for the electronic device has at least a hinge as a seat cushion in a side view of the vehicle. Extends from the lower surface of the seat cushion to the rotation center of the hinge after being routed forward to a position reached, further characterized in that it is fixed to the bracket by the first fixing unit is routed to the rear of the vehicle.

  According to the above configuration, the wiring of the electronic device wiring is first routed forward to a position where the hinge reaches the seat cushion, extends from there toward the rotation center of the hinge, and further behind the rotation center of the hinge. It fixes to the 1st fixing | fixed part provided in the same height. As a result, the wiring for electronic equipment is routed so as to pass near the rotation center of the hinge. Therefore, when the rear part of the seat cushion is lifted and opened forward and rotated (rotated) around the rotation center of the hinge, the portion of the wiring for the electronic device that is directed to the rotation center of the hinge follows the movement of the hinge. Moving. Therefore, the opening / closing operability of the seat is not impaired. Further, the electronic device wiring is directed from the lower surface of the seat cushion, that is, from the position not protruding from the front end of the seat cushion, toward the rotation center of the hinge. Therefore, the wiring for electronic devices does not loosen excessively, and disconnection or the like is not caused by being caught or caught between the seat cushion and other parts.

  The vehicle seat seat routing structure may further include a second fixing portion that is disposed at a position on the lower surface of the seat cushion where the hinge reaches the seat cushion in a side view of the vehicle, and holds the wiring for the electronic device. According to such a configuration, it is possible to further suppress loosening of the wiring for the electronic device below the lower surface of the seat cushion, so that it is possible to prevent the seat from being caught on other parts when the seat for the seat is slid in the front-rear direction. Is possible. In addition, since the wiring for the electronic device is held at the two locations of the first fixing portion and the second fixing portion, the electronic device wiring is prevented from being damaged when a load is applied in a direction in which the wiring is pulled. Can do.

  The vehicle seat seat routing structure further includes a slide rail that is disposed below the bracket and slides the bracket in the vehicle front-rear direction, and the first fixing portion is located closer to the slide rail than the lower surface of the seat cushion. It should be arranged. Thereby, the interference with the seat cushion of the wiring for electronic devices at the time of opening and closing operation of the seat cushion can be prevented. Also, the electronic device wiring is held by the first fixing portion at a lower position near the slide rail, that is, below the seat cushion, so that the space below the seat cushion can be used more efficiently.

  In order to solve the above-described problem, another configuration of the present invention is a vehicle in which a seat cushion on which a passenger is seated, the vehicle seating having a seat cushion that can be lifted rearward and opened forward. In the seat arrangement structure for seats, the seat cushion is opened forward by connecting the bracket disposed along the side edge of the lower surface of the seat cushion and the bracket and the front portion of the seat cushion so as to be rotatably supported by the bracket. Hinges to be rotated in such a manner, wiring for electronic equipment drawn out from the lower surface of the seat cushion and routed forward along the lower surface, and electronic equipment provided at the same height behind the rotation center of the hinge of the bracket A first fixing portion for fixing the wiring for the electronic device and a third fixing portion provided on the hinge for fixing the wiring for the electronic device. In front view, at least the hinge is routed forward to the position where it reaches the seat cushion, and then extends from the lower surface of the seat cushion toward the center of rotation of the hinge. And is fixed to the bracket by the first fixing portion.

  Even with such a configuration, the electronic device wiring moves following the movement of the hinge, so that the same effect as described above can be obtained. Further, since the third fixing portion is provided on the hinge, it is possible to prevent the wiring for the electronic device from entering below the seat cushion and to secure more space below the seat cushion.

  The third fixing portion may hold the electronic device wiring over a predetermined length in the vertical direction. Accordingly, since the electronic device wiring is held in a wide range in the vertical direction, it is possible to reliably prevent the electronic device wiring from jumping out forward of the seat cushion.

  The vehicle seat seat routing structure further includes a buckle wiring that is disposed in the vicinity of the lower surface of the seat cushion and connected to a buckle of the seat belt, and the electronic device wiring is fixed to the first fixing portion. It is preferable that the electronic device wiring branched into two in the vertical direction and connected upward is connected to the buckle wiring. Thereby, since the buckle wiring does not get in the way during the wiring work of the electronic device wiring branched downward, the workability at the time of wiring can be improved.

  The vehicle seat seat routing structure may further include a cover that is disposed on the lower surface of the seat cushion and that urges the wiring for electronic equipment drawn out from the lower surface forward. Thereby, the slack of the electronic device wiring on the lower surface of the seat cushion can be prevented, and the electronic device wiring can be suitably routed forward.

  ADVANTAGE OF THE INVENTION According to this invention, the opening / closing operativity of the seat cushion of a vehicle seat can be maintained, and the vehicle seat seat routing structure which does not produce the disconnection and damage of wiring can be provided.

1 is a perspective view showing an entire first embodiment of a vehicle seat seat routing structure according to the present invention. It is the expansion perspective view which observed the seat sheet shown in FIG. 1 from the downward direction. It is the enlarged view perspective view which observed the seat cushion shown in FIG. 1 from upper direction. It is the bottom view which observed the seat cushion of Drawing 3 from the lower part. It is the figure which observed the seat cushion shown in FIG. 2 from the side. It is a figure which shows the state which opened the seat cushion shown in FIG. 5 ahead of the vehicle. It is a figure which shows 2nd Embodiment of the seat seat routing structure for vehicles by this invention.

  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.

(First embodiment)
FIG. 1 is a perspective view showing an entire first embodiment of a vehicle seat seat routing structure according to the present invention. 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 sits 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 a storage space 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.

  FIG. 2 is an enlarged perspective view of the seat 100 shown in FIG. 1 observed from below. As shown in FIG. 2, in the seat 100 according to the present embodiment, brackets 120 a and 120 b are arranged along the left and right side edges of the lower surface 110 a of the seat cushion 110. Hinges 130a and 130b that connect the brackets 120a and 120b and the front portion of the seat cushion are disposed outside the brackets 120a and 120b.

  The hinges 130a and 130b support the front portion of the lower surface 110a of the seat cushion 110. The hinges 130a and 130b are supported by the brackets 120a and 120b so as to be rotatable at a rotation center 132 (FIG. 5). Thereby, hinge 130a * 130b rotates so that the seat cushion 110 may open ahead (refer FIG.1 (b)). Slide rails 160a and 160b are arranged below the brackets 120a and 120b. The slide rails 160a and 160b can move the entire seat 100 in the longitudinal direction by sliding the brackets 120a and 120b in the longitudinal direction of the vehicle.

  FIG. 3 is an enlarged perspective view of the seat cushion shown in FIG. 1 observed from above. FIG. 3 shows a state in which the inside of the seat cushion 110 in FIG. 1 is transmitted for easy understanding. As shown in FIG. 3, an electronic device 108 is built in the seat cushion 110. From this electronic device 108, an electronic device harness 140 is provided. Examples of the electronic device 108 include a load sensor that detects the seating of an occupant on the seat 100. However, the electronic device 108 is not limited to this. For example, any electronic device such as a seat heater is placed inside the seat cushion 110. It may be built in.

  FIG. 4 is a bottom view of the seat cushion 110 of FIG. 3 observed from below. As shown in FIG. 4A, an insertion hole 112 is provided on the lower surface 110 a of the seat cushion 110. FIG. 4B shows a state in which the cover 114 is attached to the insertion hole 112 of FIG. As shown in FIG. 4A and FIG. 4B, the electronic device harness 140 that has come out of the electronic device 108 is pulled out below the seat cushion 110 through the insertion hole 112, and is covered by the cover 114. It is routed forward along 110a.

  FIG. 5 is a view of the seat cushion 110 shown in FIG. 2 observed from the side. For ease of understanding, FIG. 5 shows only the right bracket 120a and hinge 130a on the right side of the seat 100 (passenger seat), and the left bracket 120b and hinge 130b located in front are not shown. In this embodiment, the electronic device harness 140 is routed using the right bracket 120a and the hinge 130a as described above, but the same routing may be performed using the left bracket 120b and the hinge 130b.

  As shown in FIG. 5, the electronic device harness 140 is routed forward, reaches a position where the hinge 130a reaches the seat cushion 110 (position of the second fixing portion 154) in the vehicle side view, and further, the seat cushion. The front end of 110 is reached. Thereafter, the electronic device harness 140 extends from the lower surface 110a of the seat cushion 110 toward the rotation center 132 of the hinge 130a, and is further routed rearward of the vehicle. The bracket 120a is provided with a first fixing portion 152 at the same height behind the rotation center 132 of the hinge 130a. The electronic device harness 144 routed to the rear of the vehicle is fixed to the bracket 120 a by the first fixing portion 152. With this configuration, the electronic device harness 144 is routed so as to pass near the rotation center 132 of the hinge 130a.

  6 is a view showing a state in which the seat cushion 110 shown in FIG. 5 is opened forward of the vehicle, and only the bracket 120a and the hinge 130a on the right side of the seat 100 (passenger seat) are shown in the same manner as FIG. . As described with reference to FIG. 5, the electronic device harness 144 is routed so as to pass in the vicinity of the rotation center 132 of the hinge 130a. Therefore, a portion of the electronic device harness 144 from the lower surface 110a of the seat cushion 110 toward the rotation center 132 of the hinge 130a extends in the vertical direction in FIG. 5, but opens the seat cushion 110 forward as shown in FIG. Then, it follows the movement of the hinge 130a and becomes horizontal.

  Thus, the electronic device harness 144 moves following the movement of the hinge 130a, so that the opening / closing operability of the seat 100 is not impaired. Further, as shown in FIG. 5, the electronic device harness 144 is directed from the lower surface 110a of the seat cushion 110, that is, from a position not protruding from the front end of the seat cushion 110 toward the rotation center 132 of the hinge 130a. Therefore, the electronic device harness 144 does not loosen excessively, and does not cause a disconnection or the like by being caught or caught between the seat cushion 110 and other components.

  By disposing the cover 114 in the insertion hole 112 as in the present embodiment, the electronic device harness 140 inserted through the insertion hole 112 by the cover 114, that is, drawn downward from the insertion hole 112, is urged forward. Is done. Thereby, slack of the harness 140 for electronic devices in the lower surface 110a of the seat cushion 110 can be prevented. Therefore, the electronic device harness 140 can be suitably routed toward the front of the vehicle along the lower surface 110a of the seat cushion 110.

  In the present embodiment, the electronic device harness 140 extends toward the rotation center 132 of the hinge 130 a after reaching the front end of the seat cushion 110. However, the electronic device harness 140 only needs to reach at least the position where the hinge 130a reaches the seat cushion 110 (the position of the second fixing portion 154), and extends directly from there toward the rotation center 132 of the hinge 130a. May be. This is because the electronic device harness 140 can secure a length necessary to move following the movement of the hinge 130a as long as the electronic device harness 140 is routed forward until the position is reached.

  Further, in the present embodiment, as shown in FIGS. 2 and 5, the second fixing portion 154 is provided on the lower surface 110 a of the seat cushion 110 at a position where the hinge 130 a reaches the seat cushion 110 in the vehicle side view. The second fixing portion 154 holds the electronic device harness 140 being routed forward of the vehicle along the lower surface 110 a of the seat cushion 110 on the lower surface 110 a of the seat cushion 110. Thereby, since the slack of the harness 140 for electronic devices under the lower surface 110a of the seat cushion 110 is further suppressed, it is possible to prevent the seat seat 100 from being caught on other components when the seat 100 is slid in the front-rear direction. Further, since the electronic device harness 140 is held at the two locations of the first fixing portion 152 and the second fixing portion 154, damage to the electronic device harness 140 when a load in the direction of pulling the electronic device harness 140 is applied. It becomes possible to prevent.

  In the present embodiment, as shown in FIG. 2, the first fixing portion 152 is disposed at a height closer to the slide rail 160 a than the lower surface of the seat cushion 110. Thereby, interference with the seat cushion 110 of the harness 140 for electronic devices at the time of opening / closing operation | movement of the seat cushion 110 can be prevented.

  Further, according to the above configuration, the electronic device harness 140 is held by the first fixing portion 152 at a lower position near the slide rail 160 a below the seat cushion 110. For this reason, the space below the seat cushion 110 can be used more effectively. Furthermore, since the space below the seat cushion is widened, the wiring work between the harness 140 (strictly, the harness 142) and the harness 170 described later can be performed satisfactorily.

  As shown in FIG. 2, in the present embodiment, a buckle harness 170 connected to a seat belt buckle 172 (see FIG. 1) is disposed near the lower surface of the seat cushion 110. As shown in FIG. 5, the electronic device harness 140 is fixed to the first fixing portion 152, and then is branched into two in the vertical direction: an upper branch harness 142 and a lower branch harness 144. An upper branch harness 142 that is an electronic device harness branched upward is connected to the buckle harness 170. Thereby, when the wiring work of the lower branch harness 144 is performed, the buckle harness 170 does not interfere, so that the workability of the wiring work can be improved.

(Second Embodiment)
FIG. 7 is a diagram showing a second embodiment of the vehicle seat seat routing structure according to the present invention, and shows a state in which the seat cushion 110 is observed from above as in FIG. Hereinafter, the same components as those in the first embodiment will be denoted by the same reference numerals, and the description thereof will be omitted. Only the differences from the first embodiment will be described.

  The feature of this embodiment is that a third fixing portion 156 is provided instead of the second fixing portion 154 (see FIG. 2), as shown in FIG. The third fixing portion 156 is provided on the hinge 130a, and fixes the electronic device harness 140 in the middle extending downward from the lower surface 110a of the seat cushion 110 toward the rotation center 132 to the hinge 130a. Even with the configuration illustrated in FIG. 7, the electronic device harness 140 moves following the movement of the hinge 130 a, and thus the same effect as that of the seat 100 can be obtained.

  As in this embodiment, the electronic device harness 140 is attached to the hinge 130a by the third fixing portion 156, so that the electronic device harness 140 can follow the movement of the hinge 130a when the seat cushion 110 is opened and closed. It becomes possible to raise. In addition, according to such a configuration, it is possible to prevent the electronic device harness 140 from entering the space below the seat cushion 110 and to secure more space below the seat cushion 110.

  In particular, in the present embodiment, as shown in FIG. 7, the third fixing portion 156 has a shape extending along the height direction of the hinge 130a, and the electronic device harness 140 is held over a predetermined length in the vertical direction. Yes. Thereby, since the electronic device harness 140 is held in a wide range in the vertical direction, the electronic device harness 140 can be more reliably prevented from jumping out forward of the seat cushion 110. In addition, since the electrical device harness 140 is covered with the third fixing portion 156 in a wide range in the vertical direction, the electronic device harness 140 is difficult to visually recognize from the occupant, and the appearance can be improved.

  In the seat 100a shown in FIG. 7, the configuration in which the third fixing portion 156 is provided instead of the second fixing portion 154 is exemplified, but the present invention is not limited to this, and the third fixing portion 154 is added to the third fixing portion 154. The fixing unit 156 may be further provided. In FIG. 7, the bracket-shaped third fixing portion 156 extending along the height direction of the hinge 130 a is illustrated, but this shape is merely an example, and the present invention is not limited thereto. For example, a clip-like member such as the second fixing portion 154 shown in FIG. 2 can be attached to the hinge 130a to form the third fixing portion.

  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, 100a ... Seat seat, 102 ... Seat back, 104 ... Headrest, 106 ... Storage box, 108 ... Electronic equipment, 110 ... Seat cushion, 110a ... Lower surface, 112 ... Insertion hole, 114 ... Cover, 120a ... Bracket , 120b ... bracket, 130a ... hinge, 130b ... hinge, 132 ... center of rotation, 140 ... harness for electronic equipment, 142 ... upper branch harness, 144 ... lower branch harness, 152 ... first fixing portion, 154 ... second fixing Part, 156 ... third fixing part, 160a ... slide rail, 160b ... slide rail, 170 ... harness for buckle, 172 ... buckle

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 bracket disposed along a side edge of the lower surface of the seat cushion;
A hinge that is provided outside the bracket and connects the bracket and a front portion of the seat cushion so as to be rotatably supported by the bracket;
Electronic equipment wiring that is pulled out from the lower surface of the seat cushion and routed forward along the lower surface;
A first fixing portion that is provided at the same height behind the rotation center of the hinge on the opposite side of the hinge with respect to the bracket , and fixes the electronic device wiring ;
The lower surface of the seat cushion is disposed at a position where the hinge reaches the seat cushion in a side view of the vehicle, and includes a second fixing portion that holds the wiring for the electronic device ,
The wiring for electronic equipment extends from the lower surface of the seat cushion toward the rotation center of the hinge after being routed forward to at least the position where the hinge reaches the seat cushion in a side view of the vehicle, and further toward the rear of the vehicle A vehicle seat seat routing structure that is routed and fixed to the bracket by a first fixing portion. A slide rail disposed below the bracket and sliding the bracket in the vehicle longitudinal direction;
The vehicle seat seat routing structure according to claim 1, wherein the first fixing portion is disposed at a height closer to the slide rail than a lower surface of the seat cushion. 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 bracket disposed along a side edge of the lower surface of the seat cushion;
A hinge that is provided outside the bracket and connects the bracket and a front portion of the seat cushion so as to be rotatably supported by the bracket;
Electronic equipment wiring that is pulled out from the lower surface of the seat cushion and routed forward along the lower surface;
A first fixing portion that is provided at the same height behind the rotation center of the hinge on the opposite side of the hinge with respect to the bracket , and fixes the electronic device wiring;
A third fixing portion provided on the hinge and fixing the wiring for electronic equipment;
The wiring for the electronic device extends from the lower surface of the seat cushion toward the rotation center of the hinge after being routed forward to at least the position where the hinge reaches the seat cushion in a side view of the vehicle, A vehicle seat seat routing structure, wherein the vehicle seat seat routing structure is fixed to the hinge by a third fixing portion, is further routed rearward of the vehicle, and is fixed to the bracket by a first fixing portion. The vehicle seat seat routing structure according to claim 3 , wherein the third fixing portion holds the wiring for the electronic device over a predetermined length in the vertical direction. Further comprising a buckle wiring disposed near the lower surface of the seat cushion and connected to a seat belt buckle;
The electronic device wiring is bifurcated into two in the vertical direction after being fixed to the first fixing portion, and the electronic device wiring branched upward is connected to the buckle wiring. The vehicle seat seat routing structure according to any one of 1 to 4 . A cover disposed on the lower surface of the seat cushion, any one of claims 1 to 5, further comprising a cover for biasing the wiring the electronic device drawn from the lower surface to the front The vehicle seat seat routing structure described in 1.

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