JP3676681B2 - Child seat striker mounting structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In the present invention, the base end side is wound in the circumferential direction of the pipe-shaped frame, the leading end side extends in a direction away from the frame, and the leading ends of the two extending portions are bridged to form a child seat. The present invention relates to a mounting structure for a substantially U-shaped child seat striker including a bridging portion with which a lock mechanism is engaged.
[0002]
[Prior art]
In January 1999, the ISO (Fixed) Child Seat Fixing Method (ISO-Fix) of the ISO (International Organization for Standardization) standard for the purpose of preventing misuse of child seats, improving vehicle compatibility, and internationally unifying the mounting method was decided.
[0003]
The child seat fixing method of this standard will be described with reference to FIGS.
As shown in FIG. 5A for explaining the mechanism on the seat side, two extending portions 3, 3 ′ with the proximal end side wound around the circumferential direction of the pipe-like frame 1 and the distal end side extending in the direction away from the frame 1 are provided. Then, two substantially U-shaped strikers 7 each having a bridge portion 5 that bridges the tip portions of the extension portions 3 and 3 ′ and that engages with a child seat locking mechanism are attached to the pipe-shaped frame 1.
[0004]
The striker 7 and the frame 1 are the peripheral surfaces of the frame 1 on the base end side of the extending portions 3 ′ and 3, as shown in FIG. It is attached by welding the part that wraps around (the part in the range b in FIG. 5B).
[0005]
And these two strikers 7 are arrange | positioned between the seat back 9 and the seat cushion 11, as shown in FIG.
The child seat 13 has two lock mechanisms 15 that can be engaged with and disengaged from the striker 7. The child seat 13 is inserted in the direction of the arrow and the lock mechanism 15 is engaged with the bridging portion 5 of the striker 7. 13 is fixed.
[0006]
Further, the striker and the frame are attached as shown in FIG.
In FIG. 7, the striker 27 has two extending portions 23, 23 ′ whose proximal end is wound in the circumferential direction of the pipe-shaped frame 1 and whose distal end extends in a direction away from the frame 1, and two extending portions 23, 23 'is bridged in the direction in which the bridge mechanism 25 engages with the child seat locking mechanism and the proximal end side of the extension portions 23 and 23', and the frame 1 is axially bent. And bent portions 29 and 29 'extending in the direction.
[0007]
The striker 27 and the frame 1 are attached by welding the bent portions 29 and 29 ′ and the frame 1 (parts in a range c in FIG. 7).
[0008]
[Problems to be solved by the invention]
However, the striker mounting structure configured as described above has the following problems.
(1) Mounting structure shown in FIG. 5 In recent years, the thickness of the pipe-like frame 1 has been reduced to reduce the weight.
[0009]
Therefore, when the range b portion is welded, the frame 1 is baked in the circumferential direction, the welded portion becomes brittle, and when a large load is applied to the bridging portion 5 of the striker 7, the welded portion between the striker 7 and the frame 1 is deformed. It may be destroyed.
(2) Since the distance between the portion of the range c that is the welded portion of the mounting structure shown in FIG. 7 and the bridging portion 25 where the load acts is large, when a large load acts on the bridging portion 25 of the striker 7, There is a problem that the extension portions 23 and 23 'of the striker 27 on which a large bending moment acts are likely to be deformed.
[0010]
The present invention has been made in view of the above-mentioned problems, and its problem is to provide a child seat striker mounting structure in which even when a large load is applied to the striker, the welded portion of the striker is not destroyed and the striker is also difficult to deform. It is to provide.
[0011]
[Means for Solving the Problems]
The invention according to claim 1, which solves the above-described problem, includes two extending portions that have a base end side wound around a circumferential direction of a pipe-shaped frame and a distal end side extending in a direction away from the frame, and the two extending portions It is an attachment structure of a substantially U-shaped child seat striker that bridges the distal end and includes a bridging portion with which the child seat locking mechanism engages, and the proximal end side of the extension portion of the striker is attached by welding, A striker mounting structure for a child seat, characterized in that the striker is attached to the frame through a bracket attached to the frame by welding in the axial direction of the frame at a portion near the bridging portion of the striker of the frame. is there.
[0012]
The base end side of the striker extension is attached to the bracket by welding, and the bracket is attached by welding in the axial direction of the frame, so there is no burning in the circumferential direction of the frame, and the welded portion of the striker is destroyed. There is nothing to do.
[0013]
Since the bracket to which the striker is attached is attached to the frame by welding in the axial direction of the frame at a portion close to the bridge of the striker on the frame, the striker can be extended even if a large load is applied to the bridge of the striker. The part does not deform.
[0014]
According to a second aspect of the present invention, the bracket according to the first aspect of the present invention holds the proximal end sides of the two extending portions of the striker, and the proximal end sides of the extended portions of the striker are attached by welding. The child seat striker mounting structure according to claim 1, further comprising: a connecting portion that connects the two holding portions and is attached to the frame by welding in the axial direction of the frame.
[0015]
When the base end side of the two extension parts of the striker is held in the bracket and the holding part to which the base end side of the extension part of the striker is attached by welding is provided, if a heavy load acts on the striker, the extension of the striker The protruding part is difficult to deform.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
First, a description will be given with reference to FIG. 1 which is a perspective view showing the overall configuration.
[0017]
In the figure, a substantially U-shaped striker 101 formed by bending a wire having a circular cross-sectional shape is wound around two pipes extending in the circumferential direction of the pipe-shaped frame 103 and extending in the direction away from the frame 103 at the distal end side. The projecting portions 105 and 105 ′ and the bridging portion 107 that bridges the tip portions of the two extending portions 105 and 105 ′ and engages with the child seat locking mechanism are formed.
[0018]
A bracket 121 is attached to the frame 103 by welding in the axial direction of the frame 103 at a portion close to the bridging portion 107 of the striker 101 of the frame 103 where the proximal end side of the extension portion 105 of the striker 101 is attached by welding.
[0019]
Next, description will be made with reference to FIG. 2 which is a top view of FIG. 1, FIG. 3 which is a cross-sectional view taken along line AA of FIG. 2, and FIG. 4 which is a cross-sectional view taken along line BB of FIG.
In these drawings, the bracket 121 includes holding parts 123 and 123 'shaped to embrace the proximal ends of the two extending parts 105 of the striker 101, and a connecting part 125 that connects the two holding parts 123 and 123'. It is made up of.
[0020]
A hole 125 a extending in the axial direction of the frame 103 is formed in the connection portion 125.
And the base end side of the extension part 105 of the striker 101 is attached to the holding | maintenance parts 123 and 123 'of the bracket 121 by welding (the part of the range d in FIG. 3).
[0021]
The diameter of the inner peripheral surface of the holding portion 123 is set to be slightly larger than the diameter of the wire rod of the striker 101 so that the proximal end side of the extension portion 105 of the striker 101 can be easily welded.
[0022]
The bracket 121 to which the striker 101 is attached is attached to the frame 103 by welding in the axial direction of the frame 103 (the portion in the range e and the portion e ′ in FIG. 2) at a portion near the bridging portion 107 of the striker 101 of the frame 103. It has been.
[0023]
In this embodiment, the axial welding of the frame 103 between the bracket 121 and the frame 103 is performed through the hole 125 a of the bracket 121.
According to the mounting structure, the following effects can be obtained.
(1) The base ends of the extension portions 105 and 105 ′ of the striker 101 are attached to the holding portions 123 and 123 ′ of the bracket 121 by welding, and the bracket 121 is attached by welding in the axial direction of the frame 107. No burning occurs in the circumferential direction 103, and the welded portion of the striker 101 is not destroyed.
(2) Since the bracket 121 to which the striker 101 is attached is attached to the frame 103 by welding in the axial direction of the frame 103 at a portion close to the bridge portion 107 of the striker 101 of the frame 103, the bracket 121 is attached to the bridge portion 107 of the striker 101. Even if a large load is applied, the extension portions 105 and 105 ′ of the striker 101 are not deformed.
(3) Holding portions 123 and 123 ′ in which the proximal ends of the two extending portions 105 and 105 of the striker 101 are held in the bracket 121 and the proximal ends of the extending portions 105 and 105 ′ of the striker 101 are attached by welding. As a result, the extension portions 105 and 105 ′ of the striker 101 are not easily deformed when a large load is applied to the striker 101.
[0024]
【The invention's effect】
As described above, according to the first aspect of the present invention, the base end side of the extension portion of the striker is attached to the bracket by welding, and the bracket is attached by welding in the axial direction of the frame. No burning occurs and the welded portion of the striker is not destroyed.
[0025]
Since the bracket to which the striker is attached is attached to the frame by welding in the axial direction of the frame at a portion close to the bridge of the striker on the frame, the striker can be extended even if a large load is applied to the bridge of the striker. The part does not deform.
[0026]
According to the invention described in claim 2, the striker is provided with the holding portion to which the proximal end side of the two extending portions of the striker is held in the bracket and the proximal end side of the extending portion of the striker is attached by welding. When a large load is applied, the extension part of the striker is not easily deformed.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an overall configuration of an embodiment.
FIG. 2 is a top view of FIG.
3 is a cross-sectional view taken along line AA in FIG. 2. FIG.
4 is a cross-sectional view taken along a cutting line BB in FIG. 3. FIG.
5A is a view for explaining a mounting structure between a striker and a frame, FIG. 5B is a view taken in the direction of arrow a in FIG. 5A, and is a view for explaining a welded portion between the striker and the frame. is there.
FIG. 6 is a diagram for explaining a child seat fixing method of ISO-Fix standard.
FIG. 7 is a view of another example illustrating a mounting structure between a striker and a frame. It is.
[Explanation of symbols]
101 Strike 103 Frame 105, 105 'Extension 107 Bridge part 121 Bracket 123, 123' Holding part 125 Connection part

Claims (2)

The base end side winds around the circumferential direction of the pipe-shaped frame, the front end side extends in a direction away from the frame, and the distal end of the two extension portions is bridged, and the child seat locking mechanism is engaged. It is a mounting structure of a substantially U-shaped child seat striker consisting of a bridging portion,
The base end side of the extension part of the striker is attached by welding,
Through a bracket attached to the frame by welding in the axial direction of the frame at a portion near the bridging portion of the striker of the frame,
A child seat striker mounting structure, wherein the striker is attached to the frame. The bracket is
Holding the proximal end side of the two extending portions of the striker, a holding portion to which the proximal end side of the extending portion of the striker is attached by welding,
The child seat striker mounting structure according to claim 1, wherein the two holding portions are connected to each other and are connected to the frame by welding in the axial direction of the frame.

Images