JP3991539B2 - Child seat mounting structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a child seat mounting structure for attaching a child seat to a car seat, for example.
[0002]
[Prior art]
As a method of fixing the child seat to the seat, as shown in FIG. 11, there is a method of fixing the anchorage 102 a of the child seat 102 to the striker 101 b provided on the seat back 101 a of the seat 101.
[0003]
For example, in actual No. 2505602, JP-A-6-344817, or JP-A-8-48177 adopting such a method, as shown in FIG. 12, the reinforcing member 101e below the frame 101c in the seat back 101a is used. The striker 101b is welded. In such a structure, the load applied to the child seat is released from the reinforcing member 101e to the floor via the reclining 101d.
[0004]
[Problems to be solved by the invention]
In general, since the reinforcing member 101e is disadvantageous in terms of strength compared to the reclining 101d attached to the left and right, if the above-described structure is adopted, it is necessary to increase the strength of the reinforcing member 101e. For this reason, there are problems such as weight increase and cost increase. Further, when the angle of the seat back 101a is adjusted, there is a problem that the position of the striker 101b is changed.
[0005]
The present invention has been made in view of such a situation, and even if a method of fitting and fixing an anchorage of a child seat to a striker provided on a frame of a seat back is suppressed, an increase in weight and cost is suppressed, An object is to provide a child seat mounting structure in which the position of the striker does not change even when the angle is adjusted.
[0006]
[Means for Solving the Problems]
The child seat mounting structure according to the present invention is made to solve such a problem. The seat is attached to the floor by a reclining mechanism or a hinge, and is fixed to the floor among the components of the reclining mechanism or the hinge. The child seat anchorage is provided with a base portion having a bolt hole formed therein and a standing portion extending from the base portion toward the upper side of the vehicle and does not move or rotate relative to the floor. In the child seat mounting structure to which the striker is fitted , the striker mounting portion is a plate-like member, and the plate-like member has a bolt hole for fixing the striker to the floor, and the reclining mechanism or the Integrate with the standing part below the pivot center of the hinge More, the external force acting on the striker through the child seat via the reclining mechanism or a hinge and has a structure which is transmitted to the floor. The striker may be fixed to a bracket, and the bracket may include a surface that contacts the base portion and a surface that is integrated with the standing portion. Further, the reclining mechanism or the hinge is fixed to the floor by being attached to the lower arm, an upper arm attached to the seat, a lower arm that is rotatably combined with the upper arm at a rotation center, and the lower arm. The lower arm, the lower base, and the bracket may be integrated by caulking or welding. In addition, the upper end portion of the lower base or the bracket to be integrated may have a concave shape.
[0007]
Here, the floor mounting bracket refers to a bracket for mounting and fixing a seat to the floor, such as reclining or a hinge. The bracket is attached to a component that does not perform relative movement (or relative rotation) with respect to the floor, such as a lower base or a lower bracket, among the components of the floor mounting bracket. As the attachment means, for example, means such as screw fastening, caulking with a pin, or welding is used.
[0008]
The bracket may be mounted on the floor after the bracket is mounted on the floor mounting bracket, but the bracket uses a mounting hole for mounting the floor mounting bracket on the floor. It is configured to be fastened together with the above floor.
[0009]
This joint fastening may be performed on all the mounting holes of the floor mounting bracket, but may be performed only on a part thereof. In the latter case, when the bracket is positioned so as to cover the mounting hole that is not fastened together, a tool hole is separately provided in the bracket.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of a child seat mounting structure according to the present invention will be described with reference to the drawings. The child seat attachment structure according to the first embodiment is shown in FIGS. 1 to 5, the child seat attachment structure according to the second embodiment is shown in FIG. 6, and the child seat attachment structure according to the third embodiment is shown in FIGS. FIG. 8 shows a child seat mounting structure according to the fourth embodiment.
[0013]
First, the child seat mounting structure according to the first embodiment will be described with reference to FIGS. The child seat mounting structure is the same fixing method as in FIG.
[0014]
As shown in FIG. 1, the seat back 1 includes a frame 2, and the frame 2 is provided with a reinforcing member 2 a. The frame 2 is attached to a reclining 3 (floor mounting bracket) fixed to the floor 10. The bracket 4 is fixed to the floor 10 via the reclining 3.
[0015]
Next, the reclining 3 will be described with reference to FIG. As shown in the figure, the reclining 3 includes an upper arm 31, a lower arm 32, and a lower base 33. Any of these components is a plate-like member.
[0016]
As shown in FIG. 5, the upper arm 31 has two bolt holes 31b drilled at one end, and the lower arm 32 has two crimping holes 32a drilled at one end. The upper arm 31 and the lower arm 32 are combined so as to be rotatable at the other end portions, and the central portion forms a rotation center 31 a between the upper arm 31 and the lower arm 32.
[0017]
As shown in FIG. 5, the lower base 33 includes a standing portion 33 c and a base portion 33 e. One bolt hole 33a, 33b is drilled in the base portion 33e. Two caulking holes 33d are formed in the standing portion 33c. The distance between the caulking holes 33d is matched to the distance between the caulking holes 32a of the lower arm 32. The end portion of the standing portion 33c has a concave shape. This ensures that a large contact area between the lower base 33 and the lower arm 32 can be secured with the upper arm 31 during assembly (see FIG. 2 or FIG. 4). Interference can be avoided.
[0018]
Next, the bracket 4 will be described with reference to FIG. As shown in the figure, the bracket 4 has a standing portion 4c, an inclined portion 4d, and a base portion 4e. The standing portion 4c and the inclined portion 4d are bent at a substantially right angle, and the inclined portion 4d and the base portion 4e are bent at an obtuse angle. Two caulking holes 4f are formed in the standing portion 4c. The distance between the caulking holes 4f is matched to the distance between the caulking holes 33d of the lower base 33. The end portion of the upright portion 4 c has a concave shape like the end shape of the upright portion 33 c of the lower base 33. A single tool hole 4a having a relatively large diameter is formed in the inclined portion 4d. One bolt hole 4b is formed in the base portion 4e at a position near the standing portion 4c. The distance between the holes in the parallel surface of the base portion 4e between the tool hole 4a and the bolt hole 4b is matched to the distance between the bolt holes 33a and 33b of the lower base 33 (see FIG. 3).
[0019]
A striker 5 is fixed to the bracket 4 by welding on the side opposite to the base portion 4e of the inclined portion 4d. The striker 5 protrudes from the inclined portion 4d. The inclination angle of the inclined portion 4d is adjusted so that the striker 5 can be fitted to the anchorage of the child seat when the vehicle body is assembled. It is also possible to adjust according to the shape of the striker 5.
[0020]
The above-described assembly of the reclining 3 and the bracket 4 to the floor 10 will be described with reference to FIGS. As shown in FIG. 5, the pin 41 is inserted and caulked into the caulking hole 32 a of the lower arm 32 of the reclining 3, the caulking hole 33 d of the lower base 33, and the caulking hole 4 f of the bracket 4. Thereby, as shown in FIG. 2 or FIG. 4, the lower arm 32, the lower base 33, and the bracket 4 of the reclining 3 are integrated. In addition, as a method of integrating the three parts, it is possible to perform by welding in addition to caulking.
[0021]
In this state, the base portion 33e of the lower base 33 of the reclining 3 is in contact with the base portion 4e of the bracket 4 while being separated from the inclined portion 4d. Further, as shown in FIG. 2 or 4, the bolt holes 33 b of the lower base 33 of the reclining 3 and the bolt holes 4 b of the bracket 4 are in communication with each other. Also, as shown in FIG. 3, the positional relationship is such that the centers of the bolt holes 33 a of the lower base 33 of the reclining 3 and the tool holes 4 a of the bracket 4 substantially coincide.
[0022]
The reclining 3 and the bracket 4 integrated in this way are fixed to the floor 10 using bolts as shown in FIG. 2 or FIG. In other words, the bolts 33a of the lower base 33 of the reclining 3 are fastened with bolts. At this time, the tool is inserted into the tool hole 4 a of the bracket 4. And the bolt hole 33b of the lower base 33 of the reclining 3 and the bolt hole 4b of the bracket 4 are fastened together with a bolt.
[0023]
By assembling as described above, the external force acting on the striker 5 through the child seat is transmitted to the floor 10 via the bracket 4 and the reclining 3. The reclining 3 itself has a relatively high strength, and since such a member is used, reinforcement of the reclining 3 is not particularly necessary. Since the external force is transmitted to the reclining 3 and not to the frame 2 of the seat back, the thickness of the reinforcing member 2a of the frame 2 can be reduced or eliminated, resulting in an increase in weight and cost. There is no problem of increase. Furthermore, even if the inclination angle of the seat back is changed by the reclining 3, the position of the striker 5 is not changed, and the inconvenience is solved.
[0024]
Moreover, since the bracket 4 to which the striker 5 is fixed is fastened together with the lower base 33 of the reclining 3, it can be newly attached to the floor 10 without using the bolt for the bracket 4, and the bracket 4 is used as a component. Even if it is newly added, there is almost no increase in man-hours at the time of assembly.
[0025]
In this embodiment, the bracket 4 is attached via the reclining 3, and the present invention is applied to a seat with a reclining function. However, the present invention is not limited to this, and the bracket 4 is also attached to a hinge without the reclining 3. It can be applied to a seat without a reclining function. Moreover, in this embodiment, as shown in FIG. 1, although it employ | adopts about the reclining 3 of the right-and-left both sides of the seat back 1, it can also employ | adopt only in any one.
[0026]
Although the first embodiment has been described above, the various modifications mentioned in this regard can be similarly applied to other embodiments described later.
[0027]
Next, a second embodiment will be described with reference to FIG. As shown in the figure, the reclining 6 (floor mounting bracket) includes an upper arm 61 and a lower bracket 62. That is, the reclining 3 in the first embodiment is composed of three parts, an upper arm 31, a lower arm 32, and a lower base 33. In this embodiment, instead of using the lower arm and the lower base, these are integrated. A lower bracket 62 is used. The upper arm 61 is the same as the upper arm 31 in the first embodiment.
[0028]
As shown in FIG. 6, the upper arm 61 is formed with two bolt holes 61b at one end. The lower bracket 62 includes a standing portion 62b and a base portion 62c. One bolt hole 62d, 62e is formed in the base 62c. Two caulking holes 62a are formed in the standing portion 62b. The upper arm 61 and the standing portion 62b of the lower bracket 62 are combined so as to be freely rotatable, and a central portion thereof forms a rotation center 61a. Since the bracket 4 is the same as that of the first embodiment, the description thereof is omitted.
[0029]
The assembly of the reclining 6 and the bracket 4 to the floor 10 is substantially the same as in the first embodiment, but in this embodiment, the caulking hole 62a of the lower bracket 62 of the reclining 6 and the caulking hole 4f of the bracket 4 are used. The pin 41 is inserted into and crimped. Accordingly, since the two parts are caulked, the operation becomes easier than in the first embodiment. Subsequent assembly is the same as in the first embodiment, and is therefore omitted.
[0030]
Next, a third embodiment will be described with reference to FIGS. As shown in FIG. 7 or FIG. 8, in this embodiment, the reclining 3 in the first embodiment is used. As described above, the reclining 3 includes the upper arm 31, the lower arm 32, and the lower base 33.
[0031]
The bracket 7 has an upright portion 7c, an inclined portion 7d, and a base portion 7e, and has the same shape as the bracket 4 in the first embodiment. As shown in FIG. 7, two caulking holes 7f are formed in the standing portion 7c. The distance between the caulking holes 7f is matched to the distance between the caulking holes 33d (see FIG. 5) of the lower base 33. Two inclined tool holes 7a having a relatively large diameter are formed in the inclined portion 7d. The hole position of the tool hole 7a is aligned with the bolt hole 33a (see FIG. 5) of the lower base 33. One bolt hole 7b is formed in the base portion 7e at a position on the opposite side of the standing portion 7c. The striker 5 is positioned and fixed to the bracket 7 so as to protrude from the inclined portion 7d.
[0032]
The above-described assembly of the reclining 3 and the bracket 7 to the floor 10 is substantially the same as in the first embodiment, and the lower arm 32, the lower base 33, and the bracket 7 of the reclining 3 are caulked with pins 71 to be integrated. . In the present embodiment, the method of bolting the integrated bracket 7 or the like to the floor 10 is different from the first embodiment. That is, the bolts 33a and 33b of the lower base 33 are bolted. At this time, the inclined portion 7d of the bracket 7 covers the base portion 33e of the lower base 33. However, since the tool can be inserted into the tool hole 7a, the tool can be assembled to the floor 10. . Further, the bolt holes 7b of the bracket 7 are also bolted. Thus, in this embodiment, the bolting to the floor 10 is not carried out together, but is bolted at three points, so that the strength is further improved. Note that welding nuts (not shown) are fixed to the floor 10 in advance at positions corresponding to the bolt holes 33a, 33b, and 7b. The present embodiment can also be applied to the case where the lower bracket 62 (see FIG. 6) in which the lower arm and the lower base are integrated as in the second embodiment.
[0033]
Next, a fourth embodiment will be described with reference to FIGS. As shown in FIG. 9 or 10, in this embodiment, the frame 2 (see FIG. 1) is attached to a reclining 8 (floor mounting bracket) that is fixed to the floor 10. A bracket 9 is attached to the floor via the reclining 8.
[0034]
As shown in FIG. 9, the reclining 8 includes an upper arm 81, a lower arm 82, and a lower base 83. The upper arm 81 has two bolt holes 81b drilled at one end, and the lower arm 82 has two caulking holes 82a drilled at one end. The upper arm 81 and the lower arm 82 are combined so as to be rotatable at the other end portions, and the central portion forms a rotation center 81 a between the upper arm 81 and the lower arm 82.
[0035]
As shown in FIG. 9 or 10, the lower base 83 includes a standing portion 83 c and a base portion 83 e. As shown in FIG. 10, the standing portion 83c and the base portion 83e are arranged obliquely to each other. One bolt hole 83a and 83b is formed in the base 83e. Two caulking holes 83d are formed in the standing portion 83c. The distance between the caulking holes 83d is adjusted to the distance between the caulking holes 82a of the lower arm 82.
[0036]
Next, the bracket 9 will be described with reference to FIG. 9 or FIG. As shown in FIG. 9, the bracket 9 has a standing portion 9c, an inclined portion 9d, and a base portion 9e, and has the same shape as the bracket 4 in the first embodiment. The inclined portion 9d and the base portion 9e are chamfered, and the base portion 9e has a triangular shape.
[0037]
Two caulking holes 9f are formed in the standing portion 9c. The distance between the caulking holes 9f is matched to the distance between the caulking holes 83d of the lower base 83. Only the striker 5 is welded and fixed to the inclined portion 9d, and various tool holes are not drilled. One bolt hole 9b is formed in the base portion 9e.
[0038]
The above-described assembly of the reclining 8 and the bracket 9 to the floor 10 is substantially the same as in the first embodiment. As shown in FIG. 9, the lower arm 82, the lower base 83, and the bracket 9 of the reclining 8 are pinned. It caulks in 91 and it integrates. Thereafter, the bolt 10 is fastened to the floor 10 through the bolt hole 83a of the lower base 83 of the reclining 8 using a bolt. At that time, since the bolt hole 83a is not covered with the inclined portion 9d of the bracket 9, it is not necessary to insert it into the tool hole or the like, and the work can be performed more easily. Then, the bolt holes 83b of the lower base 83 of the reclining 8 and the bolt holes 9b of the bracket 9 are fastened together with bolts.
[0039]
As described above, in this embodiment, since the standing portion 83c and the base portion 83e use the lower base 83 that is arranged obliquely, the bolt hole 83a for mounting to the floor 10 is not covered with the bracket 9, so that the bracket It is not necessary to drill a relatively large diameter tool hole (see the tool hole 4a in FIG. 5) in the inclined portion 9d of 9, and the strength of the bracket 9 itself can be further increased. Also, it can be easily performed in the bolting operation. The present embodiment can also be applied to the case where the lower bracket 62 (see FIG. 6) in which the lower arm and the lower base are integrated as in the second embodiment.
[0040]
【The invention's effect】
The child seat mounting structure according to the present invention includes a seat attached to a floor by a reclining mechanism or a hinge, and a base portion provided with a bolt hole to be fixed to the floor among the components of the reclining mechanism or the hinge, and the base portion. In the child seat mounting structure, the striker for fitting the anchorage of the child seat is attached to a component that includes a standing portion extending upward of the vehicle and that does not move or rotate relative to the floor. The mounting portion of the striker is a plate-shaped member, and the plate-shaped member includes a bolt hole for fixing the striker to the floor, and the standing portion below the rotation center of the reclining mechanism or the hinge Integrated into the strut through the child seat. The external force acting on the power is transmitted to the floor via the reclining mechanism or hinge, the striker is fixed to a bracket, the bracket is in contact with the base, The reclining mechanism or the hinge may be combined with an upper arm attached to the seat so as to be rotatable at a rotation center with respect to the upper arm. A lower arm and a lower base attached to the lower arm and fixed to the floor may be provided, and the lower arm, the lower base, and the bracket may be integrated by caulking or welding. Accordingly, an external force acting on the striker through the child seat is transmitted to the floor via the bracket and the reclining. The reclining itself has a relatively high strength, and since such a member is used, there is no particular need to reinforce the reclining. Since the external force is transmitted to the reclining and not transmitted to the frame of the seat back, the thickness of the reinforcing member of the frame can be reduced or eliminated, and the weight and cost can be reduced. It is possible to suppress the increase in In addition, since the bracket is attached to the floor side, even if the reclining angle is adjusted as before, there is no change in the position of the striker, and the child seat is more securely attached to the seat, and the usability is improved. be able to. Furthermore, the upper end portion of the lower base or the integrated portion of the bracket may be formed in a concave shape, and at the time of assembly, a wide contact area between the lower base and the lower arm is secured, and interference with the upper arm is prevented. It can be avoided.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a frame structure of a seat back to which a child seat mounting structure according to a first embodiment of the present invention is applied.
FIG. 2 is an enlarged perspective view of a part A in FIG.
FIG. 3 is a plan view of FIG. 2;
4 is a front view of FIG. 2;
FIG. 5 is an exploded perspective view of the child seat mounting structure shown in FIG. 1;
FIG. 6 is an exploded perspective view of a child seat mounting structure according to a second embodiment of the present invention.
FIG. 7 is a front view of a child seat mounting structure according to a third embodiment of the present invention.
8 is a plan view of the child seat mounting structure of FIG. 7; FIG.
FIG. 9 is an exploded perspective view of a child seat mounting structure according to a fourth embodiment of the present invention.
FIG. 10 is a plan view of FIG. 9;
FIG. 11 is a perspective view showing a mounting relationship between a seat to which a conventional child seat mounting structure is applied and a child seat.
12 is a perspective view showing a frame structure of the seat back in FIG. 11. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Seat back 2 Frame 2a Reinforcement member 3, 6, 8 Reclining 31, 61, 81 Upper arm 31a, 61a, 81a Rotation center 31b, 33a, 33b, 4b, 61b, 62d, 62e, 7b, 81b, 83a, 83b 9b Bolt hole 32, 82 Lower arm 32a, 33d, 4f, 62a, 7f, 82a, 83d, 9f Caulking hole 33, 83 Lower base 33c, 4c, 62b, 7c, 83c, 9c Standing portion 33e, 4e, 62c, 7e , 83e, 9e Base portion 4, 7, 9 Bracket 4a, 7a Tool hole 4d, 7d, 9d Inclined portion 5 Striker 41, 71, 91 Pin 62 Lower bracket 10 Floor

Claims (4)

A seat is attached to the floor by a reclining mechanism or a hinge, and among the components of the reclining mechanism or the hinge, a base portion in which a bolt hole for fixing to the floor is formed, and an upright extending from the base portion toward the upper side of the vehicle In the child seat mounting structure, a striker that fits the anchorage of the child seat is attached to a component that includes a portion and does not perform relative movement or relative rotation with the floor .
The striker mounting portion is a plate-like member, and the plate-like member is provided with a bolt hole for fixing the striker to the floor, and is provided on the standing portion below the reclining mechanism or the pivot center of the hinge. A child seat mounting structure in which an external force acting on the striker through the child seat is transmitted to the floor through the reclining mechanism or hinge by being integrated . The child seat mounting structure according to claim 1, wherein the striker is fixed to a bracket, and the bracket includes a surface in contact with the base portion and a surface integrated with the standing portion . The reclining mechanism or hinge includes an upper arm that is attached to the seat, a lower arm that is rotatably coupled to the upper arm at a rotational center, and a lower base that is attached to the lower arm and fixed to the floor. The child seat mounting structure according to claim 1, wherein the lower arm, the lower base, and the bracket are integrated by caulking or welding. 4. The child seat mounting structure according to claim 2, wherein an upper end portion of the lower base or the integrated portion of the bracket has a concave shape. 5.

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