Vehicle seat belt buckle fixing structure

Abstract

To provide a vehicle seat belt buckle fixing structure which can efficiently arranged a seat belt buckle and secure performance.SOLUTION: A vehicle seat belt buckle fixing structure 100 comprises a hinge bracket 118 which includes a bracket lower end part 122 fixed to a floor panel 120 and a bracket vertical wall part 124 extending upward from the bracket lower end part 122. The vehicle seat belt buckle fixing structure further comprises: a first anchor plate 132 connected with a second seating position E2 side of the bracket vertical wall part 124; a first webbing 136 connecting the first anchor plate 132 with a first buckle 112, a second anchor plate 134 connected with the bracket lower end part 122, and a second webbing 138 connecting the second anchor plate 134 with a second buckle 114. The hinge bracket 118 includes a bend part 154 where a forward edge of the bracket vertical wall part 124 is bent to a first seating position E1 side.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a seat belt buckle fixing structure for a vehicle. [Background technology]

[0002] Two seat belt buckles for fastening a seat belt are sometimes arranged side by side on the seat surface of a rear seat of a vehicle. For example, Fig. 1 of Patent Document 1 discloses a state in which a first buckle 41 and a second buckle 48 are arranged side by side in the vehicle width direction on the seat surface. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-159713 Summary of the Invention [Problem to be solved by the invention]

[0004] Since vehicle body sizes vary depending on the vehicle model, the width of the rear seat also varies depending on the vehicle model. Therefore, in the configuration of Patent Document 1 in which two seat belt buckles are arranged side by side in the vehicle width direction, if the rear seat dimension in the vehicle width direction is narrow, the seat belt buckle may interfere with the buttocks of the passenger, causing discomfort.

[0005] Furthermore, in the configuration of Patent Document 1, as shown in FIG. 3, one anchor 32 is used to fix the two buckles, the first buckle 41 and the second buckle 48, so the anchor 32 is required to have a certain degree of rigidity.

[0006] Furthermore, to ensure seat belt performance, regulations stipulate a minimum widthwise distance between the seat belt buckle's fixed point and the seating reference point in the center of the seating position. Therefore, even if the rear seat is narrow in the widthwise dimension of the vehicle, the seat belt buckle's fixed point must be positioned at an appropriate distance from the seating reference point.

[0007] In view of the above problems, the present invention has an object to provide a seat belt buckle fixing structure for a vehicle that can efficiently arrange the seat belt buckle and ensure its performance. [Means for solving the problem]

[0008] In order to solve the above problems, a representative configuration of a vehicle seat belt buckle fixing structure according to the present invention is a vehicle seat belt buckle fixing structure including a vehicle seat, a hinge bracket that is installed on a floor panel of the vehicle and rotatably supports a seat back of the seat, and a plurality of seat belt buckles to which tongue plates of the vehicle seat belts can be attached and detached, wherein the seat has a first seating position where a first occupant is seated, and a second seating position that is installed adjacent to the first seating position and where a second occupant is seated, the plurality of seat belt buckles include a first buckle for a seat belt of the first seating position and a second buckle for a seat belt of the second seating position, the hinge bracket has a bracket lower end that is fixed in surface contact with the floor panel, and a hinge bracket that extends from the bracket lower end to the first seating position and a second buckle that extends from the bracket lower end to the first seating position and a second buckle that extends from the first seating position to the second seating position and a rotating hinge portion provided on the bracket vertical wall portion and rotatably connected to the rotation axis of the seat back, the first buckle and the second buckle are arranged side by side in the fore-and-aft direction of the vehicle at the boundary between the first and second seating positions of the seat, further forward of the bracket vertical wall portion in the vehicle, and the vehicle seat belt buckle fixing structure further includes a first anchor plate connected to the second seating position side of the bracket vertical wall portion, a first webbing connecting the first anchor plate and the first buckle, a second anchor plate connected to the lower end of the bracket, and a second webbing connecting the second anchor plate and the second buckle, and the hinge bracket further has a curved portion that curves the front edge of the bracket vertical wall portion toward the first seating position. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide a seat belt buckle fixing structure for a vehicle that can efficiently arrange a seat belt buckle and ensure its performance. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a diagram showing an outline of a vehicle seatbelt buckle fixing structure according to an embodiment of the present invention; [Figure 2]FIG. 2 is a view showing the hinge bracket of FIG. [Figure 3] FIG. 3 is a view showing the hinge bracket of FIG. 2(a) alone. [Figure 4] FIG. 3 is a top view of the hinge bracket of FIG. 2(a). [Figure 5] FIG. 3 is a cross-sectional view of the buckle fixing structure of FIG. 2(b) taken along the line AA. [Figure 6] 4 is a cross-sectional view of the buckle fixing structure of FIG. 3 BB. DETAILED DESCRIPTION OF THE INVENTION

[0011] A vehicle seat belt buckle fixing structure according to one embodiment of the present invention includes a vehicle seat, a hinge bracket that is installed on a floor panel of the vehicle and rotatably supports a seat back of the seat, and a plurality of seat belt buckles to which tongue plates of the vehicle seat belts can be attached and detached, wherein the seat has a first seating position where a first occupant is seated, and a second seating position that is located adjacent to the first seating position and where a second occupant is seated, and the plurality of seat belt buckles include a first buckle for a seat belt of the first seating position and a second buckle for a seat belt of the second seating position, and the hinge bracket has a bracket lower end that is fixed in surface contact with the floor panel and a buckle extending from the bracket lower end toward the boundary between the first seating position and the second seating position. and a rotating hinge portion that is provided on the bracket vertical wall portion and has a rotating shaft of the seat back rotatably connected thereto, and the first buckle and the second buckle are arranged side by side in the fore-and-aft direction of the vehicle at the boundary between the first and second seating positions of the seat forward of the bracket vertical wall portion of the vehicle, and the vehicle seat belt buckle fixing structure further includes a first anchor plate connected to the second seating position side of the bracket vertical wall portion, a first webbing connecting the first anchor plate and the first buckle, a second anchor plate connected to a lower end of the bracket, and a second webbing connecting the second anchor plate and the second buckle, and the hinge bracket further has a curved portion that curves the front edge of the bracket vertical wall portion toward the first seating position side.

[0012] According to the above configuration, by arranging the first buckle and the second buckle side by side on the seat in the fore-and-aft direction of the vehicle, it is possible to prevent the first buckle and the second buckle from interfering with the buttocks, etc. of an occupant seated in the first seating position or the second seating position.

[0013] According to the above configuration, the hinge bracket that supports the seat back is originally a highly rigid component, so by providing the first anchor plate and the second anchor plate on the hinge bracket and using them as fixing members for the first buckle and the second buckle, it is possible to fix the first buckle and the second buckle to the vehicle with high rigidity while reducing the number of parts.

[0014] In the above configuration, the first buckle for the seat belt at the first seating position is fixed to a first anchor plate provided on the bracket vertical wall portion on the second seating position side. That is, the first anchor plate is coupled to a location on the hinge bracket that is spaced apart in the vehicle width direction when viewed from the first seating position side. With this configuration, it is possible to ensure a sufficient distance in the vehicle width direction between the location on the first anchor plate where the first webbing is connected, i.e., the fixed point of the first buckle, and the seating reference point in the center of the first seating position, thereby satisfying the performance and design standards of the seat belt.

[0015] In the above configuration, a curved portion is provided on the front edge of the bracket vertical wall portion. Here, the first anchor plate is provided on the bracket vertical wall portion on the second seating position side. Therefore, there is a possibility that the first webbing extending from the first anchor plate toward the first seating position side may come into contact with the front edge of the bracket vertical wall portion. According to the above configuration, by providing a curved portion on the front edge of the bracket vertical wall portion, it is possible to prevent the first webbing from coming into contact with the corners of the bracket vertical wall portion and prevent the first webbing from being damaged.

[0016] The first anchor plate may have an anchor base along the bracket vertical wall portion, an anchor front end portion extending obliquely from the vehicle front side of the anchor base toward the second seating position, and a webbing connection portion provided on the anchor front end portion and to which the first webbing is connected.

[0017] In the above configuration, the front end of the anchor of the first anchor plate is inclined toward the second seating position, and a webbing connection portion is provided there. That is, the webbing connection portion is positioned outward in the vehicle width direction from the seating reference point in the center of the first seating position. This webbing connection portion is the portion that serves as the fixing point of the first buckle. Therefore, with the above configuration, it is possible to ensure a sufficient distance in the vehicle width direction between the fixing point of the first buckle and the seating reference point, thereby making it possible to satisfy the performance and design standards of the seat belt.

[0018] The lower end portion of the bracket may be bent and extend from the lower end of the bracket vertical wall portion toward the first seating position, the first anchor plate may have a first connecting portion connected to the bracket vertical wall portion, and the second anchor plate may have a second connecting portion formed further forward in the vehicle than the first connecting portion and connected to the lower end portion of the bracket.

[0019] According to the above configuration, the first joint portion of the first anchor plate and the second joint portion of the second anchor plate are provided at different positions on the hinge bracket in the vehicle longitudinal direction. With this configuration, when the first webbing and the second webbing are pulled, forces are applied to the hinge bracket from the first joint portion and the second joint portion in different directions, respectively, making it possible to distribute stress.

[0020] The above-mentioned vehicle seat belt buckle fixing structure may further include an upper cross member installed on the upper side of the floor panel and extending in the vehicle width direction, and a lower cross member installed on the lower side of the floor panel and extending in the vehicle width direction along the upper cross member, and the lower end of the bracket may be fixed in surface contact from the floor panel to the upper cross member, and the second connecting portion of the second anchor plate may be connected to the lower end of the bracket and the floor panel.

[0021] According to the above configuration, by fixing the lower end of the bracket across the floor panel and the upper cross member, the load on the hinge bracket can be distributed to the upper cross member as well, allowing the hinge bracket to be installed with higher rigidity. Also, by connecting the second connecting portion of the second anchor plate not only to the lower end of the bracket but also to the floor panel, the load on the second anchor plate can be efficiently distributed to the floor panel. [Example]

[0022] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Dimensions, materials, and other specific values ​​shown in these embodiments are merely examples for facilitating understanding of the invention and, unless otherwise specified, do not limit the present invention. In this specification and drawings, elements having substantially the same functions and configurations are designated by the same reference numerals to avoid redundant explanation, and elements not directly related to the present invention are not shown.

[0023] Fig. 1 is a diagram showing an outline of a vehicle seatbelt buckle fixing structure (hereinafter referred to as buckle fixing structure 100) according to an embodiment of the present invention. Fig. 1(a) is a diagram showing an outline of a rear seat 102 to which the buckle fixing structure 100 is applied. Hereinafter, in Fig. 1 and all other drawings of the present application, the front-to-rear direction of the vehicle is indicated by arrows F (Forward) and B (Backward), the left and right in the vehicle width direction are indicated by arrows L (Leftward) and R (Rightward), and the up-down direction of the vehicle is indicated by arrows U (Upward) and D (Downward).

[0024] The rear seat 102 is implemented as a so-called 60:40 split folding rear seat for three people. The seat surface of the seat cushion 104 of the rear seat 102 is provided with a first seating position E1 in the center in the vehicle width direction for a first occupant to sit, a second seating position E2 on the right side in the vehicle width direction for a second occupant to sit, and a third seating position E3 on the left side in the vehicle width direction for a third occupant to sit.

[0025] The seat back 106 of the rear seat 102 can be folded down separately into a seat back 106a for the first seating position E1 and the third seating position E3, and a seat back 106b for the second seating position E2. The buckle fixing structure 100 is not limited to separate-type seats with divided seat backs 106, but can also be used in bench-type seats with undivided seat backs 106, and can achieve the same effects.

[0026] Seat belts 108a, 108b, and 108c are provided at each seating position of the rear seat 102. The seat surface of the seat cushion 104 is provided with a plurality of seat belt buckles for detachably fastening tongue plates 110a, 110b, and 110c of the seat belts 108a, 108b, and 108c.

[0027] For example, a first buckle 112 is provided for the seat belt 108a at the first seating position E1, a second buckle 114 is provided for the seat belt 108b at the second seating position E2, and a third buckle 116 is provided for the seat belt 108c at the third seating position E3.

[0028] Fig. 1(b) is an enlarged view of the first buckle 112 and the second buckle 114 in Fig. 1(a). Fig. 1(b) shows the first buckle 112 and the second buckle 114 with the seat back 106 and the seat cushion 104 omitted.

[0029] The first buckle 112 and the second buckle 114 are arranged side by side in the longitudinal direction of the vehicle at the boundary between the first seating position E1 (see FIG. 1(a)) and the second seating position E2. In this embodiment, a hinge bracket 118 is used as a fixing member for the first buckle 112 and the second buckle 114.

[0030] The hinge bracket 118 is a member that rotatably supports the seat back 106 of the rear seat 102, and is installed on the upper side of the vehicle floor panel 120. In this embodiment, the hinge bracket 118 is used not only as a support member for the seat back 106, but also as a fixing member for the first buckle 112 and the second buckle 114, thereby reducing the number of parts.

[0031] Figure 2 is a diagram showing the hinge bracket 118 of Figure 1(b). Figure 2(a) is a perspective view showing the hinge bracket 118 from the same direction as Figure 1(b). In Figure 2, the first buckle 112 and the second buckle 114 are shown in a see-through state by dashed lines.

[0032] The hinge bracket 118 is roughly divided into a bracket lower end portion 122 and a bracket vertical wall portion 124 .

[0033] The bracket lower end 122 is a portion that is in surface contact with and fixed to the floor panel 120 (see FIG. 1(b)). The bracket lower end 122 is fixed to the floor panel 120 using fasteners such as bolts. For example, the bracket lower end 122 is fixed to the floor panel 120 using fasteners at a fixing portion 126 on the rear side of the vehicle and at a second connecting portion 150 of a second anchor plate 134 on the front side of the vehicle, which will be described later.

[0034] The bracket vertical wall portion 124 is a portion that extends upward from the bracket lower end portion 122. A rotating hinge portion 130 is provided on the upper end side of the bracket vertical wall portion 124. A rotating shaft 128 of the seat back 106 (see FIG. 1(b)) is rotatably connected to the rotating hinge portion 130.

[0035] The first buckle 112 and the second buckle 114 are secured to the hinge bracket 118 using a first anchor plate 132 and a second anchor plate 134 .

[0036] The first anchor plate 132 is joined to the right side in the vehicle width direction of the bracket vertical wall portion 124, i.e., on the side of the second seating position E2 (see FIG. 1(a)). The first buckle 112 is connected to the first anchor plate 132 by a first webbing 136, which is a belt member.

[0037] The second anchor plate 134 is coupled to the vehicle front side of the bracket lower end portion 122. The second buckle 114 is connected to the second anchor plate 134 by a second webbing 138 which is a belt member.

[0038] Fig. 2(b) is a view showing the hinge bracket 118 of Fig. 2(a) as viewed from the right side in the vehicle width direction. As described above, the first anchor plate 132 is connected to the right side in the vehicle width direction of the bracket vertical wall portion 124, i.e., the side of the second seating position E2 (see Fig. 1(a)).

[0039] The first anchor plate 132 is joined to the bracket vertical wall portion 124 by a first joining portion 140 that uses a bolt or the like. The first anchor plate 132 has a protrusion 142 at its rear end, and is joined to the bracket vertical wall portion 124 with the protrusion 142 inserted into a hole 144.

[0040] The first anchor plate 132 is provided with a first webbing connection portion 146 on the front side of the first coupling portion 140. The first webbing connection portion 146 is an elongated through-hole through which the first webbing 136 is passed and connected.

[0041] The second anchor plate 134 in FIG. 2(a) has almost the same configuration as the first anchor plate 132 in FIG. 2(b).

[0042] The second anchor plate 134 is joined to the bracket lower end portion 122 by a second joining portion 150 that uses a bolt or the like. The second anchor plate 134 is provided with a second webbing connecting portion 152 on the front side of the second joining portion 150. The second webbing connecting portion 152 is an elongated through-hole through which the second webbing 138 is passed and connected.

[0043] Fig. 3 is a view showing the hinge bracket 118 of Fig. 2(a) alone. Fig. 3(a) is a view showing the hinge bracket 118 from the same direction as Fig. 2(a).

[0044] The bracket vertical wall portion 124 stands upright in a triangular shape extending upward from the right side in the vehicle width direction of the bracket lower end portion 122. The bracket lower end portion 122 extends from the lower end of the bracket vertical wall portion 124 while bending to the left in the vehicle width direction.

[0045] Figure 3(b) is a view of the hinge bracket 118 in Figure 3(a) as seen from the right side in the vehicle width direction. The bracket lower end 122 is recessed upward toward the rear of the vehicle. This portion is fixed to the upper surface of the upper cross member 160 (see Figure 1(b)).

[0046] Fig. 3(c) is a top view of the hinge bracket 118 of Fig. 3(a). The bracket lower end portion 122 has a fixing portion 126 formed as a through-hole on the rear side of the vehicle, and a through-hole 148 formed on the front side of the vehicle to which the second connecting portion 150 of the second anchor plate 134 (see Fig. 3) is connected.

[0047] Fig. 3(d) is a view showing the hinge bracket 118 of Fig. 3(a) as seen from the front of the vehicle. As described above, the bracket lower end portion 122 bends and extends from the lower end of the bracket vertical wall portion 124 to the left in the vehicle width direction, i.e., toward the first seating position E1 (see Fig. 1(a)).

[0048] FIG. 4 is a diagram showing the hinge bracket 118 of FIG. 2(a) as viewed from above.

[0049] The hinge bracket 118 is installed below the rear seat 102 (see FIG. 1(a)) so that the bracket vertical wall portion 124 extends upward toward the boundary between the first seating position E1 and the second seating position E2.

[0050] The first buckle 112 and the second buckle 114 are arranged side by side in the fore-and-aft direction of the vehicle, at the boundary between the first seating position E1 and the second seating position E2 on the seat surface of the seat cushion 104 (see Figure 1(a)), further forward of the bracket vertical wall portion 124.

[0051] In this embodiment, the first buckle 112 and the second buckle 114 are arranged side by side in the fore-and-aft direction of the vehicle on the seat cushion 104, thereby making it possible to prevent the first buckle 112 and the second buckle 114 from interfering with the buttocks, etc. of an occupant seated at the first seating position E1 (see Figure 1(a)) or the second seating position E2.

[0052] The hinge bracket 118 is originally embodied as a highly rigid member in order to support the seat back 106. Therefore, by providing the first anchor plate 132 and the second anchor plate 134 to the hinge bracket 118 and using them as fixing members for the first buckle 112 and the second buckle 114, it is possible to fix the first buckle 112 and the second buckle 114 with high rigidity while reducing the number of parts.

[0053] As described above, the first anchor plate 132 is joined to the bracket vertical wall portion 124 by the first joining portion 140. Furthermore, the second anchor plate 134 is joined to the bracket lower end portion 122 by the second joining portion 150. In this case, the second joining portion 150 is formed below the first joining portion 140 and further forward of the vehicle.

[0054] The first joint portion 140 of the first anchor plate 132 and the second joint portion 150 of the second anchor plate 134 are provided at different positions in the front-to-rear direction of the vehicle on the hinge bracket 118. With this configuration, when the first webbing 136 and the second webbing 138 are pulled by restraining each occupant, forces are applied to the hinge bracket 118 from the first joint portion 140 and the second joint portion 150 in different directions.

[0055] For example, a force indicated by an arrow F1 is applied to the first connecting portion 140 in a forward direction toward the first seating position E1 (see FIG. 1(a)). Also, a force indicated by an arrow F2 is applied to the second connecting portion 150 in a forward direction toward the second seating position E2.

[0056] The above configuration allows hinge bracket 118 to receive loads from an occupant at first seating position E1 (see FIG. 1(a)) and an occupant at second seating position E2 in different directions. In this way, hinge bracket 118 can distribute stress and prevent localized stress concentration.

[0057] Fig. 5 is a cross-sectional view taken along line AA of the buckle fixing structure 100 of Fig. 2(b). In Fig. 5, the buckle fixing structure 100 is shown with the lower part of the figure corresponding to the front of the vehicle and the upper part of the figure corresponding to the rear of the vehicle.

[0058] The hinge bracket 118 has a curved portion 154 at the front end of the bracket vertical wall portion 124. The curved portion 154 is formed by curving the front edge of the bracket vertical wall portion 124 toward the first seating position E1 (see FIG. 1(a)).

[0059] The curved portion 154 is curved to form a convex arc toward the front of the vehicle. The curved portion 154 is provided in the form of a flange extending in the up-down direction at the front end of the bracket vertical wall portion 124.

[0060] The first anchor plate 132 is provided on the second seating position E2 (see FIG. 1(a)) side of the bracket vertical wall portion 124. Therefore, when the first buckle 112 is pulled toward the first seating position E1 (to the right in FIG. 5) while the occupant is being restrained by the seat belt 108a, the first webbing 136 extends from the first anchor plate 132 toward the first seating position E1. At this time, there is a possibility that the first webbing 136 will come into contact with the front edge of the bracket vertical wall portion 124.

[0061] In this embodiment, by providing a curved portion 154 on the front edge of the bracket vertical wall portion 124, the corners of the bracket vertical wall portion 124 do not come into contact with the first webbing 136. This makes it possible for the hinge bracket 118 to prevent the first webbing 136 from being damaged.

[0062] In this embodiment, the first buckle 112 for the seat belt 108a at the first seating position E1 (see FIG. 1(a)) is fixed to a first anchor plate 132 provided on the second seating position E2 side (left side in FIG. 5) of the bracket vertical wall portion 124. That is, the first anchor plate 132 is joined to a location of the hinge bracket 118 that is spaced apart in the vehicle width direction when viewed from the first seating position E1 side.

[0063] Furthermore, the first anchor plate 132 has an anchor base 156 along the bracket vertical wall portion 124 and an anchor front end portion 158 that extends obliquely from the front side of the vehicle of the anchor base 156 toward the second seating position E2 (left side in Figure 5).

[0064] The first webbing connection portion 146 is provided at the anchor front end portion 158 and is used as a fixing point P1 of the first buckle 112 to the vehicle. That is, in this embodiment, the fixing point P1 of the first buckle 112 is provided at a position farther away from the first seating position E1 side (the right side in FIG. 5) in the vehicle width direction.

[0065] Furthermore, in this embodiment, the anchor front end portion 158 of the first anchor plate 132 is inclined toward the second seating position E2, and the first webbing connection portion 146 is provided at that position. In other words, the first webbing connection portion 146 is positioned outward in the vehicle width direction from the seating reference point C1 in the center of the first seating position E1. According to this embodiment, it is possible to ensure a sufficient distance in the vehicle width direction between the fixing point P1 of the first buckle 112 and the seating reference point C1, which makes it possible to satisfy the performance and design standards of the seat belt.

[0066] Sloping the anchor front end portion 158 also moves the first webbing connection portion 146 away from the bracket vertical wall portion 124. This makes it possible to prevent the first webbing 136 from contacting the bracket vertical wall portion 124 and protect the first webbing 136.

[0067] Fig. 6 is a BB cross-sectional view of the buckle fixing structure 100 of Fig. 3. In Fig. 6, the buckle fixing structure 100 is shown with the left side of the figure being the front of the vehicle and the right side of the figure being the rear of the vehicle.

[0068] An upper cross member 160 extending in the vehicle width direction is installed on the upper side of floor panel 120. A lower cross member 162 extending in the vehicle width direction along upper cross member 160 is installed on the lower side of floor panel 120. Furthermore, a reinforcing member 164 is also provided from the front side of lower cross member 162 to floor panel 120.

[0069] The bracket lower end 122 is fixed in surface contact with the floor panel 120 from the area of ​​the floor panel 120 that is further forward of the upper cross member 160 to the upper surface of the upper cross member 160. This configuration makes it possible to distribute the load acting on the hinge bracket 118 to the upper cross member 160 as well, allowing the hinge bracket 118 to be installed with greater rigidity.

[0070] The second connecting portion 150 of the second anchor plate 134 is connected across the bracket lower end portion 122, the floor panel 120, and the reinforcing member 164. This configuration makes it possible to efficiently distribute the load acting on the second anchor plate 134 from the floor panel 120 to the reinforcing member 164 and the lower cross member 162.

[0071] In this embodiment, the hinge bracket 118 is implemented on the assumption that the first seating position E1 (see FIG. 1(a)) is the center position of the seat cushion 104 in the vehicle width direction and the second seating position E2 is the right side position of the seat cushion 104 in the vehicle width direction, but the configuration of the hinge bracket 118 is not limited to this. For example, even if the second seating position E2 is located to the left of the first seating position E1 in the vehicle width direction, this can be achieved by implementing the hinge bracket 118 with a configuration in which the configuration of FIG. 2(a) is reversed left and right. In other words, the technical idea of ​​the hinge bracket 118 can also be implemented in a configuration in which the bracket lower end portion 122 is bent from the lower end of the bracket vertical wall portion 124 to the right in the vehicle width direction, and the first anchor plate 132 is disposed on the left side of the bracket vertical wall portion 124 in the vehicle width direction.

[0072] While the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to these examples. It is clear that those skilled in the art can conceive of various modifications and alterations within the scope of the claims, and it is understood that these modifications and alterations also fall within the technical scope of the present invention. [Industrial Applicability]

[0073] The present invention can be used in a vehicle seat belt buckle fixing structure. [Explanation of symbols]

[0074] 100... buckle fixing structure, 102... rear seat, 104... seat cushion, 106... seat back, 106a, 106b... seat back, 108a, 108b, 108c... seat belt, 110a, 110b, 110c... tongue plate, 112... first buckle, 114... second buckle, 116... third buckle, 118... hinge bracket, 120... floor panel, 122... bracket lower end portion, 124... bracket vertical wall portion, 126... fixing portion, 128... rotation shaft, 130... rotation hinge portion, 132... first anchor plate, 134...second anchor plate, 136...first webbing, 138...second webbing, 140...first connecting portion, 142...projection portion, 144...hole portion, 146...first webbing connecting portion, 148...through hole, 150...second connecting portion, 152...second webbing connecting portion, 154...curved portion, 156...anchor base portion, 158...anchor front end portion, 160...upper cross member, 162...lower cross member, 164...reinforcing member, C1...seating reference point, E1...first seating position, E2...second seating position, E3...third seating position, F1...arrow, F2...arrow, P1...fixing point

Claims

1. A vehicle seat belt buckle fixing structure includes a vehicle seat, a hinge bracket that is installed on a floor panel of the vehicle and rotatably supports a seat back of the seat, and a plurality of seat belt buckles to which tongue plates of seat belts of the vehicle can be attached and detached, The sheet is a first seating position in which a first occupant is seated; a second seating position adjacent to the first seating position for a second occupant to sit in; The plurality of seat belt buckles include: a first buckle for a seat belt of the first seating position; a second buckle for the seat belt of the second seating position; The hinge bracket includes: a bracket lower end portion fixed to the floor panel in surface contact therewith; a bracket vertical wall portion extending upward from a lower end portion of the bracket toward a boundary between the first seating position and the second seating position; a rotation hinge portion provided on the bracket vertical wall portion and rotatably connected to a rotation shaft of the seat back, the first buckle and the second buckle are arranged side by side in the vehicle front-rear direction at a boundary between the first seating position and the second seating position of the seat, the boundary being further forward of the bracket vertical wall portion of the vehicle, The vehicle seat belt buckle fixing structure further comprises: a first anchor plate coupled to the bracket vertical wall portion on the second seating position side; a first webbing connecting the first anchor plate and the first buckle; a second anchor plate coupled to a lower end of the bracket; a second webbing connecting the second anchor plate and the second buckle; The hinge bracket further has a curved portion formed by curving a front edge of the vertical wall portion of the bracket toward the first seating position.

2. The first anchor plate is an anchor base along the bracket vertical wall portion; an anchor front end portion extending obliquely from a vehicle front side of the anchor base toward the second seating position; 2. The vehicle seat belt buckle fixing structure according to claim 1, further comprising a webbing connecting portion provided at a front end portion of the anchor and to which the first webbing is connected.

3. the bracket lower end portion is bent and extends from a lower end of the bracket vertical wall portion toward the first seating position, the first anchor plate has a first coupling portion coupled to the bracket vertical wall portion, 2. The vehicle seat belt buckle fixing structure according to claim 1, wherein the second anchor plate has a second connecting portion formed forward of the vehicle than the first connecting portion and connected to the lower end of the bracket.

4. The vehicle seat belt buckle fixing structure further comprises: an upper cross member disposed above the floor panel and extending in the vehicle width direction; a lower cross member disposed below the floor panel and extending in the vehicle width direction along the upper cross member; The bracket lower end portion is fixed in surface contact from the floor panel to the upper cross member, 2. The vehicle seat belt buckle fixing structure according to claim 1, wherein the second connecting portion of the second anchor plate is connected to the lower end of the bracket and the floor panel.

Images