JP3975254B2 - Child seat anchor mounting structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a child seat anchor mounting structure for attaching a child seat anchor to a seat cushion frame or a seat back frame. More specifically, the present invention relates to a child seat anchor mounting structure in which a reinforcing member for reinforcing the anchor together with the anchor is mounted on the frame.
[0002]
[Prior art]
The child seat is generally attached to the vehicle seat by a belt or the like. However, since the lower end of the seat back is rotatably connected to the rear end of the seat cushion via a reclining adjuster, it may be difficult to attach the belt to the vehicle seat so as not to loosen. there were. In order to solve this problem, an anchor for attaching the child seat is provided on the rear end of the seat cushion or the frame at the lower end of the seat back.
Conventionally, as this anchor, as shown in FIG. 5, a steel rod is bent into a substantially U shape and welded to a frame. This anchor has a portion corresponding to the U-shaped bottom portion formed in a straight line to form a locking portion 3a for locking the locked portion 2 of the child seat, and a pair of J-shapes on the left and right sides of the U-shape. The locking support portions 3b and 3b are attached to a part of the peripheral surface of the frame 1 from below and are welded. The locking portions 3a, which are supported on the base end portions of the pair of locking support portions 3b, 3b, protrude into the notch (not shown) formed at the rear end of the seat cushion or the lower end of the seat back. In this anchor 3, the child seat can be easily attached by locking the locked portion 2 of the child seat to the locking portion 3a protruding into the notch formed in the seat cushion or the seat back. ing.
[0003]
[Problems to be solved by the invention]
However, in the child seat anchor mounting structure described above, when the child seat is used, the anchor 3 may be damaged by a load applied by the movement of the child seat. That is, when a load indicated by a solid line arrow in the figure that peels off the pair of J-shaped locking support portions 3b, 3b welded to the frame 1 is applied from the child seat to the locking portion 3a in the anchor 3, the locking portion There is a possibility that the portion A which is the locking support portions 3b and 3b in the vicinity of 3a and is welded to the frame 1 is peeled off from the frame 1. In order to eliminate this point, it is conceivable to improve the welding strength. However, improving the welding strength causes a change in the shape of the anchor 3 and increases the size and complexity of the anchor 3 itself, which increases the unit price in the anchor mounting process.
An object of the present invention is to provide a child seat anchor mounting structure that can improve anchor mounting strength to a frame and prevent the anchor from peeling from the frame without changing the shape of the anchor.
[0004]
[Means for Solving the Problems]
As shown in FIG. 1, the invention according to claim 1 is a structure in which a child seat anchor 18 is attached to a frame 13a extending in the seat width direction at the rear portion of the seat cushion 12 of the vehicle seat 11 or the lower portion of the seat back 13, 18 is parallel to the frame 13a, the locking portion 18a to which the locked portion 21a of the child seat 21 is locked, and each base end portion is connected to both ends of the locking portion 18a, and each distal end portion is connected to the periphery of the frame 13a. This is an improvement of the child seat anchor mounting structure having a pair of locking support portions 18b, 18b that support the locking portion 18a by welding to the surface from below or above.
As shown in FIGS. 1 and 2, the characteristic configuration includes a pair or two pairs of reinforcing support portions 22b and 22b and a contact reinforcing portion 22a that connects both base ends of the reinforcing support portions 22b and 22b. The reinforcing member 22 is provided on the frame 13a, and the reinforcing support portions 22b and 22b are arranged such that the distal end portion is located above the peripheral surface of the frame 13a with both or each of the pair of locking support portions 18b and 18b sandwiched between the respective distal end portions. Alternatively, the contact reinforcing portion 22a is welded together from below and is in contact with the locking support portion from below or above.
[0005]
In the invention according to the first aspect, when a load in a direction in which the pair of locking support portions 18b and 18b are peeled off is applied to the locking portion 18a of the anchor 18 welded to the frame 13a, the load is applied to the reinforcing member 22. The pair of reinforcement support portions 22b and 22b transmitted to the contact reinforcement portion 22a and supporting the contact reinforcement portion 22a prevent the contact reinforcement portion 22a from moving in the load direction, and the locking support portions 18b and Prevents peeling of 18b. On the other hand, even if a load other than the direction in which the pair of locking support portions 18b and 18b is peeled off is applied to the locking portion 18a, peeling at the portion welded to the frame 13a of the pair of locking support portions 18b and 18b does not occur. .
[0006]
The invention according to claim 2 is the invention according to claim 1, and as shown in FIG. 4, welded to the frame peripheral surfaces of the pair of locking support portions 18 b and 18 b at both ends of the contact reinforcing portion 22 a. This is a child seat anchor mounting structure in which the non-contact portion is in contact and the contact reinforcing portion 22a between the pair of locking support portions 18b, 18b is welded to the peripheral surface of the frame 13a.
In the invention according to claim 2, a part of the load that separates the pair of locking support portions 18b, 18b is welded to the frame 13a between the pair of locking support portions 18b, 18b. 22a supports. Thereby, the load which can be supported by the reinforcing member 22 is increased, and the attachment strength of the anchor 18 to the frame 13a can be further improved.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1, the vehicle seat 11 includes a seat cushion 12 that receives the buttocks of the occupant and a seat back 13 that receives the back of the occupant. The seat cushion 12 and the seat back 13 are connected via a reclining adjuster 14, and the reclining adjuster 14 connects the rear end of the seat cushion 12 and the lower end of the seat back 13 so that the inclination angle of the seat back 13 can be adjusted. . The vehicle seat 11 is attached to a vehicle floor panel 16 via a seat track 17 so as to be slidable in the front-rear direction.
[0008]
The seat cushion 12 includes a seat cushion frame 12a, a seat cushion pad 12b, and a seat cushion skin 12c. The seat cushion frame 12a is formed of a steel material, and a seat cushion spring 12d is installed. The seat cushion pad 12b is placed on the frame 12a on which the spring 12d is installed, and the seat cushion 12 is made by enclosing the frame 12a and the pad 12b with the seat cushion skin 12c. The seat back 13 includes a seat back frame 13a, a seat back pad 13b, and a seat back skin 13c, and a seat back spring 13d is installed on the seat back frame 13a. The seat back pad 13b is placed on the frame 13a on which the spring 13d is installed, and the seat back 13 is formed by enclosing the frame 13a and the pad 13b with the seat back skin 13c. In this embodiment, an anchor 18 for attaching a child seat is fixed to a frame 13a extending in the vehicle width direction below the seat back 13.
[0009]
As shown in FIGS. 1 and 2, the anchor 18 is formed by bending a steel rod into a substantially U shape, and is parallel to a frame 13 a extending in the vehicle width direction, and is a locked portion 21 a of the child seat 21. A pair of locking portions 18a to which (FIG. 1) is locked and a pair of base end portions connected to both ends of the locking portions 18a, and each tip portion being welded to the peripheral surface of the frame 13a from below. Locking support portions 18b, 18b. On the other hand, a notch 19 (FIG. 1) is formed at the rear end of the seat cushion 12 corresponding to the locking portion 18 a of the anchor 18, and a pair of the locking portions 18 a is projected inside the notch 19. The front ends of the locking support portions 18b and 18b are welded to the frame 13a. The pair of locking support portions 18b and 18b are configured to support the locking portion 18a in a welded state.
[0010]
As shown in FIG. 1, a locked portion 21 a configured to be locked to the locking portion 18 a is provided at the lower end of the rear portion of the child seat 21. Although not shown in the drawing, a recess that fits into the locking portion 18a of the anchor 21 is formed at the tip of the locked portion 21a, and a ratchet that locks to the locking portion 18a of the anchor 18 is provided inside the recess. By locking the ratchet (not shown) to the locking portion 18a, the locked portion 21a is locked to the anchor 18 protruding inside the notch 19, and thus the locked portion 21a is locked to the anchor 18. The child seat 21 is configured to be fixed to the vehicle seat 11 by being locked to the vehicle seat 11.
[0011]
A characteristic configuration of the present invention is that a reinforcing member 22 for reinforcing the anchor 18 is provided on the frame 13a. The reinforcing member 22 is made by bending a steel rod so as to draw a substantially U-shape larger than the anchor 18, and both the pair of reinforcing support portions 22b and 22b and the reinforcing support portions 22b and 22b. And a contact reinforcing portion 22a for connecting the base end portions. The pair of reinforcing support portions 22b and 22b in the reinforcing member 22 have their tip portions attached to the peripheral surface of the frame 13a from above with both the pair of locking support portions 18b and 18b sandwiched between the tip portions. And welded. And the contact reinforcement part 22a contact | abuts from the downward direction to the latching support part 18b. At this time, a portion not welded to the frame of the pair of locking support portions 18b and 18b and a portion not welded to the frame of the pair of reinforcement support portions 22b and 22b are caused to intersect at a substantially right angle.
[0012]
In the child seat anchor mounting structure thus configured, the pair of locking support portions 18b, 18b welded to the frame 13a is peeled off, in this embodiment, the child seat locked portion 18a shown in FIG. When a downward load is applied to the locking portion 18a that is locked, the load is transmitted to the contact reinforcing portion 22a of the reinforcing member 22, and a pair of reinforcing support portions 22b and 22b that support the contact reinforcing portion 22a. Prevents downward movement of the contact reinforcing portion 22a and prevents the contact reinforcing portion 22a from moving downward together with the locking portion 18a of the anchor 18 together with the locking support portions 18b and 18b. Can do.
[0013]
In particular, in this embodiment, the portions of the pair of locking support portions 18b, 18b that are not welded to the frame 13a and the portions of the pair of reinforcement support portions 22b, 22b that are not welded to the frame intersect each other at a substantially right angle. As a result, the load applied in the direction perpendicular to the axial center where the pair of locking support portions 18b and 18b are peeled off is effectively supported by the pair of reinforcing support portions 22b and 22b provided so as to intersect with them. Thus, it is possible to effectively prevent the contact reinforcing portion 22a from moving in the load direction together with the locking portion 18a. As a result, the anchor 18 is prevented from being damaged by the load applied by the child seat 21 moving. Here, even if a load in a direction other than the direction in which the pair of locking support portions 18b and 18b peel is applied to the locking portion 18a, even if the base end portions of the pair of locking support portions 18b and 18b are curved, Peeling does not occur in the portions welded to the frame 13a of the pair of locking support portions 18b and 18b due to the curvature. Therefore, in the present invention, the strength of attaching the anchor 18 to the frame 13 a can be remarkably improved without changing the shape of the anchor 18 by providing the reinforcing member 22.
[0014]
In the above-described embodiment, the case where the anchor 18 for attaching the child seat is fixed to the frame 13a extending in the vehicle width direction below the seat back 13 is shown. However, the anchor 18 is the rear portion of the seat cushion 12 of the vehicle seat 11. You may attach to the flame | frame 12a extended in the vehicle width direction.
Further, in the above-described embodiment, the example in which the distal ends of the pair of locking support portions 18b and 18b are welded to the peripheral surface of the frame 13a from below is shown, but the pair of locking support portions 18b and 18b, 18b may be welded with its respective tip portions attached to the peripheral surface of the frame 13a from above. In this case, the tip ends of the reinforcing support portions 22b and 22b are welded to the peripheral surface of the frame 13a from below, and the contact reinforcing portion 22a is configured to contact the locking support portions 18b and 18b from above. The
[0015]
Moreover, in embodiment mentioned above, the reinforcement member 22 which has a pair of reinforcement support part 22b, 22b is used, and the pair of reinforcement support part 22b, 22b uses both a pair of latching support parts 18b, 18b as each front-end | tip part. In the example shown in FIG. 3, the reinforcing member 22 has two pairs of reinforcing support portions 22b, 22b, 22b, It may have 22b. In this case, the reinforcing support portions 22b, 22b, 22b, and 22b are welded so that the distal ends thereof are attached to the peripheral surface of the frame 13a in a state in which the pair of locking support portions 18b and 18b are sandwiched between the respective distal ends. .
[0016]
Further, in the above-described embodiment, the case where the reinforcing member 22 has the straight contact reinforcing portion 22a has been described. However, as long as the contact reinforcing portion 22a contacts the locking support portions 18b and 18b, this contact reinforcing portion is used. The portion 22a does not necessarily need to be straight. For example, as shown in FIG. 4, the contact reinforcing portion 22a may be bent into a hat shape. In this case, the unwelded portions of the pair of locking support portions 18b and 18b are brought into contact with both end portions of the contact reinforcing portion 22a, and the contact reinforcing portion 22a between the pair of locking support portions 18b and 18b is formed. A part of the load that peels off the pair of locking support portions 18b and 18b if welded to the peripheral surface of the frame 13a is welded to the frame 13a between the pair of locking support portions 18b and 18b. The portion 22a can be supported. Then, the load that can be supported by the reinforcing member 22 is increased, and the attachment strength of the anchor 18 to the frame 13a is further improved.
[0017]
【The invention's effect】
As described above, according to the present invention, a reinforcing member having a pair or two pairs of reinforcing support portions and a contact reinforcing portion that connects both base end portions of the reinforcing support portions is provided on the frame, and the pair of locking members With both or each of the support portions sandwiched between the respective front end portions of the reinforcing support portion, the front end portions are welded together with the peripheral surface of the frame from above or below, and the contact reinforcing portion is lowered to the locking support portion. Since the contact is made from above, the load in the direction in which the pair of locking support portions of the anchor welded to the frame is peeled off is supported by the pair of reinforcing support portions, and the locking support portion in the anchor is prevented from peeling off. can do. In this case, if the contact reinforcing part between the pair of locking support parts is welded to the peripheral surface of the frame, a part of the load that causes the pair of locking support parts to peel off is welded to the frame. The reinforcement part supports. Thereby, the load which can be supported by the reinforcing member is increased, and the attachment strength of the anchor to the frame can be further improved.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a vehicle seat showing a mounting structure of the present invention.
FIG. 2 is a perspective view showing the mounting structure.
FIG. 3 is a perspective view corresponding to FIG. 2 and showing another mounting structure of the present invention.
FIG. 4 is a perspective view corresponding to FIG. 2 showing still another attachment structure of the present invention.
FIG. 5 is a perspective view showing a conventional mounting structure.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 Vehicle seat 12 Seat cushion 13 Seat back 12a, 13a Frame 18 Anchor 18a Locking part 18b Locking support part 21 Child seat 21a Locked part 22 Reinforcement member 22a Contact reinforcement part 22b Reinforcement support part

Claims (2)

A structure in which a child seat anchor (18) is attached to a frame (13a) extending in the seat width direction of a seat cushion (12) rear portion or a seat back (13) lower portion of a vehicle seat (11),
The anchor (18) is parallel to the frame (13a), and the locking portion (18a) to which the locked portion (21a) of the child seat (21) is locked and both ends of the locking portion (18a) A pair of locking support portions (18b, 18b, 18) 18b), the child seat anchor mounting structure,
A reinforcing member (22) having a pair or two pairs of reinforcing support portions (22b, 22b) and an abutting reinforcing portion (22a) connecting both base ends of the reinforcing support portions (22b, 22b) includes the frame ( 13a)
The reinforcing support portions (22b, 22b) are arranged such that the tip portion is above the peripheral surface of the frame (13a) in a state where both or each of the pair of locking support portions (18b, 18b) is sandwiched between the tip portions. Welded from below,
The child seat anchor mounting structure, wherein the contact reinforcing portion (22a) contacts the locking support portion from below or above. The parts that are not welded to the frame peripheral surface of the pair of locking support portions (18b, 18b) are in contact with both ends of the contact reinforcing portion (22a), and between the pair of locking support portions (18b, 18b). The child seat anchor mounting structure according to claim 1, wherein the contact reinforcing portion (22a) is welded to the peripheral surface of the frame (13a).

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