JP7354825B2 - Harness wiring structure to buckle bracket - Google Patents

Description

The present invention relates to a harness wiring structure to a buckle bracket.

The buckle for attaching and detaching the seatbelt requires a harness connected to a sensor that detects when the seatbelt is inserted into the buckle. In conventional harness routing structures, when the harness straddles the side frame of the seat, it is routed together with a protective protector in the space formed between the seat cushion pads where the occupant sits, thereby preventing harness breakage. I was trying to prevent it.
However, such a harness wiring structure has the problems of increased man-hours for forming a space in the seat cushion pad, deterioration of seating comfort, and increased cost due to the use of a protector, and there is room for improvement. In particular, in the case of a rear seat cushion pad that is directly fixed to a floor panel, it is difficult to secure a space for wiring a harness, and it is even more difficult to secure a space for a bulky protector. In addition, if the harness is routed within the space of the seat cushion pad, there is a possibility that the harness may break due to the repeated loads applied when the occupant is seated, so it is necessary to balance securing space and protecting the harness. That was difficult.

On the other hand, in the conventional harness wiring structure, a harness support part is provided on the bracket that fixes the buckle, and the harness extending from the buckle is fixed to the harness support part for the purpose of preventing the harness from breaking. This prevents the harness from being pinched between the seat and the top of the bolt that fixes the bracket to the floor panel, thereby preventing the harness from breaking (see, for example, Patent Document 1).

JP2019-48567A

However, in the conventional harness wiring structure described above, the harness is only fixed to the top surface of a flat bracket, so loads from above the vehicle and loads from the width direction of the vehicle are transmitted to the harness. There was a risk that this could not be prevented, and there was room for improvement.

The present invention was made in view of the above circumstances, and its purpose is to secure a wiring space for the harness by passing the harness through the space formed by the seat surface and the vertical wall of the buckle bracket. It is an object of the present invention to provide a harness wiring structure for a buckle bracket that is capable of achieving both the above and the improvement of rigidity against loads from the vehicle width direction.

In order to solve the problems of the prior art described above, the present invention provides a buckle disposed on a seat cushion pad constituting a seat on which an occupant is seated , a harness extending from the buckle to the rear of the vehicle, and a harness that extends from the buckle to the rear of the vehicle. A harness wiring structure comprising : a buckle bracket attached to a floor panel of the vehicle ; the buckle bracket includes a seat section attached to the floor panel; a wall portion, and a harness support portion that supports the harness in a space formed by the vertical wall and the seat portion is provided on a surface of the vertical wall portion facing the seat portion. ing.

As described above, the harness wiring structure for a buckle bracket according to the present invention includes a seat cushion pad that is attached to a floor panel in a vehicle interior and constitutes a seat on which an occupant sits, and a buckle bracket that is arranged on the seat cushion pad. and a buckle attached to the floor panel via the buckle bracket, the buckle bracket has a seat section attached to the floor panel, a first vertical wall section extending upward from the seat section, and the buckle bracket has a seat section attached to the floor panel, and a first vertical wall section extending upward from the seat section. The buckle is attached to the wall, and a harness extending from the buckle toward the rear of the vehicle is routed in the space formed by the first vertical wall and the seat surface. A first harness support portion that supports the harness is provided on a surface of the wall portion facing the seat surface portion.
Therefore, in the harness routing structure of the present invention, it is possible to route the harness by passing the harness through the space formed by the seat surface portion and the first vertical wall portion of the buckle bracket. It is possible to secure a wiring space and also to prevent disconnection of the harness due to a load from above the vehicle. Furthermore, in the harness wiring structure of the present invention, the surface rigidity of the buckle bracket itself is improved by the first vertical wall portion, so it is possible to prevent the harness from coming off or breaking due to the load transmitted to the buckle bracket. Furthermore, in the harness wiring structure of the present invention, since the harness is attached to the same vertical wall portion as the first vertical wall portion to which the buckle is attached, the entire harness is protected against loads from the vehicle width direction. 1, the harness can be protected by the vertical wall portion, and breakage of the harness can be further prevented.

1 is a perspective view of the entire rear seat to which a harness wiring structure according to an embodiment of the present invention is applied, as viewed from the front of the vehicle. FIG. 2 is a perspective view of the harness, the buckle bracket, and its surroundings as seen from the rear of the vehicle, showing the main parts of the harness wiring structure according to the embodiment of the present invention. FIG. 3 is a perspective view of the harness, buckle bracket, and surrounding parts thereof in FIG. 2, viewed from the rear of the vehicle with the seat cushion pad removed. FIG. 3 is a plan view of the harness, buckle bracket, and their surroundings in FIG. 2 as seen from above the vehicle. FIG. 3 is a plan view of the positional relationship between the harness, the buckle bracket, and the storage case in FIG. 2 when viewed from above the vehicle.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on illustrated embodiments.
1 to 5 show a structure for wiring a harness to a buckle bracket according to an embodiment of the present invention. In the figure, the direction of arrow Fr indicates the front of the vehicle, the direction of arrow U indicates the top of the vehicle, and the direction of arrow O indicates the outside of the vehicle. Further, the arrow X direction indicates the vehicle width direction.

As shown in FIGS. 1 to 5, the harness wiring structure according to the embodiment of the present invention is attached to a floor panel 1 in a vehicle interior, and is a seat that constitutes a seat (for example, a bench-type rear seat) 2 on which a passenger is seated. The seat cushion pad 21 includes a cushion pad 21 and a buckle 4 which is disposed in an opening 21a of the seat cushion pad 21 at the center in the vehicle width direction on the rear side of the vehicle and is attached to the floor panel 1 via a buckle bracket 3. The buckle 4 is provided for attaching and detaching a seatbelt (not shown), and has a first buckle 4A and a second buckle 4B arranged on the left and right according to the number of people restrained by the seatbelt.
The buckle bracket 3 of this embodiment includes a flat seat portion 31 that is attached to the upper surface of the floor panel 1 using fasteners such as bolts 11, and a side portion (left side portion) of the seat portion 31 in the vehicle width direction. It has a first vertical wall portion 32 that extends upwardly of the vehicle to a predetermined height position and increases the surface rigidity of the buckle bracket 3 itself. It is rotatably mounted through the As shown in FIGS. 3 and 4, the mounting member 41 extends from the first buckle 4A toward the rear of the vehicle, and its tip portion is attached to the surface 32a of the first vertical wall portion 32 facing the seat surface portion 31 by the support pin 42. installed.

In addition, in the harness wiring structure of this embodiment, in the space S formed by the first vertical wall part 32 and the seat surface part 31, as shown in FIGS. A harness 5A is fixed to the first buckle 4A and extends from the first buckle 4A to the rear of the vehicle.By passing the harness 5A through the space S, a space for wiring the harness 5A is secured and a load from above the vehicle is secured. protection is provided. This harness 5A is connected to a sensor (not shown) that detects that the seat belt is inserted into the first buckle 4A, and a connector 50 is provided at the tip of the harness 5A. In the buckle bracket 3, a first harness support part 51 that supports the harness 5A is provided on the surface 32a of the first vertical wall part 32 facing the seat surface part 31, and the intermediate part of the harness 5A is provided with a first harness support part 51 that supports the harness 5A. It is fixed to the first vertical wall portion 32 of the buckle bracket 3 while being supported by the harness support portion 51 . Therefore, the harness 5A is attached to the same vertical wall portion as the first vertical wall portion 32 to which the first buckle 4A is attached, and the entire harness 5A is attached to the first vertical wall portion 32 against the load from the vehicle width direction. is configured to be protected by
Note that a harness 5B whose base end is fixed to the second buckle 4B and extends toward the rear of the vehicle from the second buckle 4B is wired in the space S, and the distal end of the harness 5B is connected to the harness 5A. It is connected. The intermediate portion of the harness 5B is fixed to the first vertical wall portion 32 of the buckle bracket 3 while being supported by the first harness support portion 51.

In the buckle bracket 3 of this embodiment, as shown in FIGS. 2 to 5, at a position facing the first vertical wall 32 in the vehicle width direction, The buckle bracket 3 has a second vertical wall portion 33 that extends upward from the vehicle to a predetermined height position and increases the surface rigidity of the buckle bracket 3 itself, and the second vertical wall portion 33 has a second buckle 4B. It is rotatably attached via a mounting member 41. As shown in FIGS. 3 and 4, the mounting member 41 extends from the second buckle 4B toward the rear of the vehicle, and its tip portion is attached to the surface 33a of the second vertical wall portion 33 facing the seat surface 31 by the support pin 42. installed. That is, the buckle bracket 3 has a U-shaped cross section that is integrally formed by the first vertical wall portion 32, the seat surface portion 31, and the second vertical wall portion 33 when viewed in the longitudinal direction of the vehicle, and the harnesses 5A and 5B have a U-shaped cross section. , is routed inside the U-shaped cross section. By routing the harnesses 5A, 5B inside the buckle bracket 3 having a U-shaped cross section, the structure is such that it is possible to prevent peripheral parts from coming into contact with the harnesses 5A, 5B from the vehicle width direction.

Further, at the upper end of the second vertical wall portion 33 of the buckle bracket 3, as shown in FIGS. 2 to 4, a hook-shaped engaged portion 34 that protrudes diagonally upward on the rear side of the vehicle is provided. , the engaged portion 34 is formed in a shape to engage with the U-shaped seat cushion hook 6. On the other hand, the seat cushion hook 6 is fixed to the rear end portion of the seat cushion pad 21 with the opening facing toward the front side of the vehicle, and the engaging portion is arranged so as to protrude from the rear end portion 21b of the seat cushion pad 21. has been done.
That is, the seat cushion pad 21 can be attached to the floor panel 1 on the vehicle body side via the buckle bracket 3 by hooking the seat cushion hook 6 to the engaged portion 34 of the second vertical wall portion 33. . Since the engaged portion 34 is provided on the second vertical wall portion 33 located opposite to the first vertical wall portion 32 to which the harnesses 5A and 5B are attached, the engaged portion 34 allows the seat cushion hook 6 to be engaged. The structure is such that the seat cushion hook 6 can prevent the harnesses 5A and 5B from being damaged when they are hooked onto the portion 34.

On the other hand, in the harness wiring structure of the present embodiment, the first vertical wall portion 32 (including the second vertical wall portion 33) is a seat cushion pad when viewed from the top of the vehicle, as shown in FIGS. 2, 4, and 5. The front end portions 32b, 33b of the vertical wall portions 32, 33 are located inside the seat cushion pad 21. Moreover, the first vertical wall portion 32 (including the second vertical wall portion 33) is located to extend above the vehicle than the upper end portions of the harnesses 5A, 5B, and the upper end portions of the vertical wall portions 32, 33 are It is formed higher than the upper end portions of the harnesses 5A and 5B. As a result, even if the seat cushion pad 21 deforms downward in the vehicle when an occupant sits on the seat 2, the seat cushion pad is 21 does not reach the harnesses 5A and 5B.

Further, as shown in FIGS. 2 to 5, the buckle bracket 3 of this embodiment has an extended vertical wall portion 35 extending toward the rear of the vehicle from the rear end portion 32c of the first vertical wall portion 32. A second harness support portion 52 that supports the harnesses 5A and 5B is provided on the inner side surface of the vertical wall portion 35 in the vehicle width direction, and is fixed by a fastener 7. Furthermore, the harness 5A from the first buckle 4A and the harness 5B from the second buckle 4B are connected at the second harness support portion 52.
The child seat anchor 8 is disposed on the outside of the extended vertical wall portion 35 in the vehicle width direction, and the extended vertical wall portion 35 is disposed between the harness 5A and the child seat anchor 8 in the vehicle width direction. There is. As a result, even if the extended vertical wall portion 35 of the buckle bracket 3 and the child seat anchor 8 are arranged relatively close to each other in the vehicle width direction, when a child seat (not shown) is attached to the child seat anchor 8, the child seat fixing hook ( (not shown) will not damage the harnesses 5A and 5B. The child seat anchor 8 has a U-shape in which the opening faces towards the rear of the vehicle and the front side of the vehicle stands up diagonally, and the lower end is fixed to the floor panel 1 by welding or the like.

Furthermore, in the buckle bracket 3 of this embodiment, child seat anchors are provided between the rear end 32c of the first vertical wall 32 and the front end 35a of the extended vertical wall 35, as shown in FIGS. A bent portion 36 is formed to bend in the vehicle width direction toward the 8 side, and the bent portion 36 allows the extended vertical wall portion 35 to move toward the rear of the vehicle to a position where it does not overlap with the child seat anchor 8 when viewed from the top of the vehicle. It extends diagonally outward. On the other hand, a rectangular storage case 9 is provided in a luggage space 12 located on the vehicle rear side of the buckle bracket 3, and a luggage mat 13 is installed above the storage case 9. This makes it possible to route the harnesses 5A, 5B in the vehicle width direction, ensuring clearance between the harnesses 5A, 5B and the luggage space 12 on the rear side of the vehicle, and also ensuring that the harnesses 5A, 5B are routed in the vehicle width direction. This prevents the harnesses 5A and 5B from being caught between them.

As described above, in the harness wiring structure for the buckle bracket 3 according to the embodiment of the present invention, the seat cushion pad 21, which is attached to the floor panel 1 in the vehicle interior and constitutes the seat (rear seat) 2 on which the passenger is seated, , a buckle 4 disposed on the seat cushion pad 21 and attached to the floor panel 1 via a buckle bracket 3. The buckle bracket 3 has a seat portion 31 that is attached to the floor panel 1 and a first vertical wall portion 32 that extends upward from the seat portion 31 toward the vehicle. )4A is installed. A harness 5A extending from the first buckle 4A toward the rear of the vehicle is wired in the space S formed by the first vertical wall portion 32 and the seat surface portion 31. A first harness support portion 51 that supports the harness 5A is provided on the surface 32a facing the harness 31.
That is, in the harness routing structure of the present embodiment, the harness 5A can be routed through the space S formed by the seat portion 31 and the first vertical wall portion 32 of the buckle bracket 3. It is possible to secure a cable space and prevent the harness 5A from being disconnected due to a load applied from above the vehicle when an occupant is seated on the seat cushion pad 21.
In addition, in the harness wiring structure of this embodiment, the surface rigidity of the buckle bracket 3 itself is improved by the first vertical wall portion 32, so that the harness 5A is prevented from coming off or breaking due to the load transmitted to the buckle bracket 3. be able to. Furthermore, in the harness wiring structure of this embodiment, since the harness 5A is attached to the same vertical wall section as the first vertical wall section 32 to which the first buckle 4A is attached, the rigidity of the first vertical wall section 32 is reduced. Therefore, the entire harness 5A can be protected by the first vertical wall portion 32 against loads from the vehicle width direction, and breakage of the harness 5A can be effectively prevented.

In the harness wiring structure for the buckle bracket 3 of the present embodiment, a second vertical wall portion 33 extending upward from the seat portion 31 in the vehicle width direction is located at a position opposite to the first vertical wall portion 32 in the vehicle width direction. is provided. The buckle bracket 3 has a U-shaped cross section formed by the first vertical wall portion 32, the seat surface portion 31, and the second vertical wall portion 33 when viewed in the longitudinal direction of the vehicle, and the harnesses 5A and 5B have a C-shaped cross section. The cable is routed inside the letter shape. Therefore, in the harness wiring structure of this embodiment, the harnesses 5A and 5B are wired inside the buckle bracket 3 surrounded by the first vertical wall part 32, the seat surface part 31, and the second vertical wall part 33. Therefore, parts arranged around the buckle bracket 3 and harnesses 5A, 5B can be prevented from contacting and damaging the harnesses 5A, 5B from the vehicle width direction, and disconnection of the harnesses 5A, 5B can be more effectively prevented. can be prevented.

Furthermore, in the harness wiring structure for the buckle bracket 3 of the present embodiment, the first vertical wall portion 32 is positioned to extend further forward of the vehicle than the rear end portion 21b of the seat cushion pad 21 when viewed from the top of the vehicle. , the harnesses 5A, 5B extend upward from the vehicle, so that even if the seat cushion pad 21 is deformed downward in the vehicle when the occupant is seated on the seat 2, the first vertical wall The seat cushion pad 21 does not reach the harnesses 5A, 5B due to the portion 32, etc., and the effect of preventing the seat cushion pad 21 from disconnecting the harnesses 5A, 5B can be exhibited.

In the harness wiring structure for the buckle bracket 3 of the present embodiment, the buckle bracket 3 has an extended vertical wall portion 35 extending toward the rear of the vehicle from the rear end portion 32c of the first vertical wall portion 32. The portion 35 is provided with a second harness support portion 52 that supports the harnesses 5A and 5B. Further, the child seat anchor 8 is disposed on the outside of the extended vertical wall portion 35 in the vehicle width direction, and the extended vertical wall portion 35 is disposed between the harness 5A and the child seat anchor 8. Therefore, in the harness wiring structure of the present embodiment, even if the extended vertical wall portion 35 of the buckle bracket 3 and the child seat anchor 8 are arranged relatively close to each other in the vehicle width direction, the child seat (not shown) is connected to the child seat anchor. Since the fixing hooks (not shown) of the child seat do not damage the harnesses 5A, 5B when the child seat is attached to the child seat 8, breakage of the harnesses 5A, 5B can be more effectively prevented.

In addition, in the harness wiring structure for the buckle bracket 3 of the present embodiment, there is a gap between the rear end 32c of the first vertical wall 32 and the front end 35a of the extended vertical wall 35 toward the child seat anchor 8 side. A storage case 9 is provided in the luggage space 12 located on the vehicle rear side of the buckle bracket 3. Therefore, according to the harness routing structure of the present embodiment, it is possible to route the harnesses 5A, 5B in the vehicle width direction, so that the clearance between the harnesses 5A, 5B and the luggage space 12 is secured, When taking the storage case 9 in and out, it is possible to avoid the storage case 9 pinching the harnesses 5A and 5B, and it is possible to effectively prevent the harnesses 5A and 5B from being disconnected.

Although the embodiments of the present invention have been described above, the present invention is not limited to the embodiments described above, and various modifications and changes can be made based on the technical idea of the present invention.

For example, in the buckle bracket 3 in the embodiment described above, the first vertical wall part 32, the seat surface part 31, and the second vertical wall part 33 are integrally formed. The vertical wall portion 33 may be formed separately from the seat portion 31. In that case, it becomes possible to shape the first vertical wall portion 32 and the second vertical wall portion 33 to match the shape and wiring direction of the harnesses 5A, 5B, further enhancing the protective effect of the harnesses 5A, 5B. I can do it.

1 Floor panel 2 Rear seat (seat)
3 Buckle bracket 4 Buckle 4A First buckle 4B Second buckle 5A, 5B Harness 6 Seat cushion hook 7 Fastener 8 Child seat anchor 9 Storage case 11 Bolt 12 Luggage space 21 Seat cushion pad 21a Opening 21b Rear end 31 Buckle bracket Seat part 32 First vertical wall part of the buckle bracket 32a Surface of the first vertical wall part facing the seat part 32c Rear end part of the first vertical wall part 33 Second vertical wall part of the buckle bracket 34 Cover of the second vertical wall part Engagement part 35 Extended vertical wall part of buckle bracket 35a Front end part of extended vertical wall part 36 Bent part 41 Mounting member 42 Support pin 51 First harness support part 52 Second harness support part S Space

Claims (5)

A buckle arranged on a seat cushion pad constituting a seat on which a passenger is seated ;
a harness extending from the buckle toward the rear of the vehicle;
A harness wiring structure comprising: a buckle bracket for attaching the buckle to a floor panel in a vehicle interior ;
The buckle bracket is
a seat portion attached to the floor panel;
a vertical wall portion extending upward from the seat portion to the vehicle and to which the buckle is attached ;
A buckle characterized in that a harness support portion that supports the harness is provided on a surface of the vertical wall portion facing the seat surface portion, the harness support portion supporting the harness within a space formed by the vertical wall and the seat surface portion. Harness wiring structure to bracket. The vertical wall portion includes a first vertical wall portion and a second vertical wall portion that are arranged to face each other in the vehicle width direction and extend upward from the vehicle seat portion,
The harness wiring structure for a buckle bracket according to claim 1, wherein the harness is wired between the first vertical wall part and the second vertical wall part. The buckle according to claim 2 , wherein the first vertical wall extends further forward of the vehicle than the rear end of the seat cushion pad, and extends above the vehicle than the upper end of the harness. Harness wiring structure to bracket. The buckle bracket has an extended vertical wall portion extending toward the rear of the vehicle from the rear end of the first vertical wall portion, and the harness support portion is provided on the extended vertical wall portion;
2. A child seat anchor is disposed on the outside of the extended vertical wall in the vehicle width direction, and the extended vertical wall is disposed between the harness and the child seat anchor. Or the harness wiring structure to the buckle bracket according to claim 3 . A bent portion is formed between the rear end portion of the first vertical wall portion and the front end portion of the extended vertical wall portion, and is bent in the vehicle width direction toward the child seat anchor side. 5. The structure for wiring a harness to a buckle bracket according to claim 4, wherein a storage case is provided in the luggage space located on the side.