JP2009137520A - Locking structure of locking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To compose a better-looking locking structure by utilizing skin material of a vehicular seat. <P>SOLUTION: A hole part 20 provided for the vehicular seat 2 is covered with a skin material tongue 10 formed of a part of the skin material S of the vehicular seat 2 to be able to open/close. A flat plate like resin plate 40 having flexibility is inwardly folded to be able to spread. One piece 40B of the resin plate is arranged around a locked member 30 to be placed at the back of the hole part 20. The other piece 40F of the resin plate is inwardly folded to one piece 40B of the resin plate to make the skin material tongue 10 fixed to the front side of the other piece 40F of the resin plate in a closed status. A locking part 44 provided on the back side of the other piece 40F of the resin plate is locked to the locked member 30. The skin material tongue 10 is made to be in an opening status by spreading the other resin plate piece 40F from one resin plate piece 40B to expose the locked member 30. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a locking structure of a locking tool for locking a locking tool provided on another seat to a vehicle seat.

As a locking structure of this type of locking tool, a locking structure disclosed in Patent Document 1 is known. In this locking structure, a locked member capable of locking a child seat top tether (locking tool) is housed in a hole formed in the seat back of the vehicle seat. Then, after the skin cover is turned up to expose the hole, the top tether is locked to the locked member inside the hole.
After the child seat is removed, the skin cover is covered on the surrounding skin with removable adhesive tape so that the skin cover does not turn up and the inside of the hole (for example, pad member or locked member) is not completely visible. (See paragraph [0033] of Patent Document 1).

By the way, the skin material of a typical vehicle seat is configured as a single piece obtained by connecting a plurality of skin material pieces. In the case of such a single-layer skin material, for example, even if a slit is made in the skin material and a part of the skin material is cut out in a tongue shape, there is no overlapping portion between the skin material tongue piece and the surrounding skin material. Therefore, it cannot be closed with adhesive tape.
For this reason, typically, a skin cover having a lower side (having a margin for attaching an adhesive tape) is prepared separately from the skin material of the vehicle seat, and attached so as to cover the above-described hole.
Japanese Patent Laid-Open No. 11-59246

However, in the above-described configuration, it is inevitable that the inside of the hole becomes completely visible when the skin cover is turned up. Furthermore, since a skin cover that is separate from the skin material is used, the boundary line between the skin cover and the skin material can be seen at a glance and is not very attractive. Of course, if you devise techniques such as matching the cover of the skin cover and the skin material, the boundary line with the skin material will be a little vague, but it will not look as good as it is cumbersome.
The present invention has been devised in view of the above points, and the problem to be solved by the present invention is to construct a locking structure with better appearance using a skin material of a vehicle seat.

As means for solving the above problems, in the locking structure of the locking device according to the first aspect of the present invention, the hole formed in the vehicle seat is formed with a skin material tongue formed by a part of the skin material of the vehicle seat. It is configured so that it can be opened and closed with a piece. And the skin material tongue is opened, and the locking member of the other sheet (for example, the top tether of the child seat) is locked to the locked member in the hole, but at this time the hole part should not be exposed, Moreover, it is necessary to make it the structure which a skin material does not open arbitrarily.
Therefore, in the present invention, the flexible resin plate is folded inward so that the resin plate can be expanded, and the resin plate is arranged around the hole so that the resin plate is placed behind the hole. It was set as the structure which covers the structure (for example, pad member) in the back of a part.

And in the present invention, the resin plate other piece is folded inward with respect to the resin plate one piece so that the skin material tongue piece fixed to the resin plate other piece front side is closed, and the latch provided on the back side of the resin plate other piece The part is configured to be locked to the locked member of the hole. By doing so, the skin material tongue is difficult to open on its own, and a stable closed state can be achieved.
Further, in the present invention, the resin plate other piece is expanded with respect to the resin plate piece, so that the skin material tongue piece is opened, and the locked member is exposed while concealing the inside of the hole as much as possible by the resin plate piece. It was. By doing so, it is possible to latch the locking members of other sheets with a good appearance without making the hole portion visible.

A locking structure for a locking tool according to a second invention is the locking structure according to the first invention, wherein a hooked or rod-like locked member is arranged in parallel to the skin material side of the frame exposed in the hole. At the same time, the locked member is fixed to the frame by a pair of fixing arms provided at both ends thereof. The resin plate piece is configured to be wider in the width direction of the hole than the separation distance between the pair of fixed arms.
And by fitting the fixed arm into the groove provided in one piece of the resin plate and folding the resin plate around the locked member, the resin plate can be attached more stably, and the wide resin plate etc. The hole structure on the frame side is hidden over a wider area by the piece.

  According to the first aspect of the present invention, it is possible to configure the locking structure with better appearance using the skin material of the vehicle seat. And according to 2nd invention, a latching structure can be comprised further with good appearance.

The best mode for carrying out the present invention will be described below with reference to FIGS. 1 to 3 show a first embodiment, and FIG. 4 shows a second embodiment.
The vehicle seat 2 of the present embodiment includes a seat cushion 4 and a seat back 6 with reference to FIG. Each of the seat cushion 4 and the seat back 6 is configured by covering a pad member P (not shown in FIG. 1) that forms the outer shape with a skin material (4S, 6S).
The skin material (4S, 6S) is configured as a single bag-like material in which a plurality of skin material pieces are connected.

When the child seat 60 is mounted on the seating surface side of the vehicle seat 2, the lower portion of the child seat 60 is fixed to the vehicle seat 2 by the locking arms 66 and 66, and the upper portion of the child seat 60 is fixed by the top tether 62. To do. In the vehicle seat 2, it is desirable that the locking structure (top tether anchor, ISO-FIX bar) for locking the top tether 62 and the locking arm 66 (both are locking tools) should be configured with a good appearance. .
Therefore, in each embodiment, by using a resin plate (hereinafter also referred to as a resin insert 40) described later, a part of the skin material 4S of the seat cushion 4 is used, and the locking structure is configured with better appearance. It is a thing.

[Example 1]
The locking structure of the present embodiment is a structure for locking the top tether 62. Referring to FIG. 2, the hole portion 20 formed in the seat cushion 4 and the engagement portion accommodated in the hole portion 20 are stored. The stop member 30 and the resin insert 40 and the skin material tongue piece 10 covering the hole 20 are provided.
(Skin material tongue)
1 and 2, the skin material tongue piece 10 of the present embodiment is provided in the center of the rear side of the seat cushion 4, and the left and right skin materials 4 </ b> S (one piece) covering the rear side of the seat cushion 4. It is configured by inserting a vertical slit and a lower horizontal slit into a tongue shape.
And the upper part of the skin material tongue piece 10 is connected with the skin material 4S of the seat cushion 4, and the structure which exposes the to-be-latched member 30 accommodated in the hole 20 by turning up the skin material tongue piece 10 is visible. It is.
In the drawing, there is a slight gap between the skin material tongue 10 and the surrounding skin material 4S, but in reality, there is almost no gap because there is a slit (simple cut) between them. For this reason, in the closed state, the skin material tongue piece 10 is substantially integrated with the surrounding skin material 4S and forms the rear side surface of the seat cushion 4 with a good appearance.

(Hole and locked member)
And the hole part 20 (front view substantially rectangular shape) of the seat cushion 4 is formed in the location (the seat cushion 4 rear side center) covered with the above-mentioned skin material tongue piece 10. FIG. The hole 20 is configured by drilling a pad member 4P on the front side of the seat until the reinforcing pipe frame 22 extending in the width direction at the rear portion of the seat cushion 4 is exposed.
A locked member 30 for retaining the top tether 62 is accommodated in the hole 20. The locked member 30 of the present embodiment is a cord-shaped (or rod-shaped) member, and has a generally U-shaped configuration when viewed from above as a whole together with a pair of fixed arms 32 and 32 provided at both ends thereof.
And the to-be-latched member 30 is arrange | positioned in parallel with the outer skin material tongue piece 10 position rather than the pipe frame 22 of the hole 20, and it fixes to the pipe frame 22 with a pair of fixing arms 32 and 32. FIG. Then, a resin insert 40 described later is fitted between the pair of fixed arms 32 and 32.

The axial length dimension (the separation dimension of the pair of fixed arms 32, 32) W1 of the locked member 30 is set to a dimension that allows the top tether 62 to be stably locked. The width of the tongue member 10 is slightly wider than the width dimension W4 (see FIG. 1). For this reason, when the skin material tongue 10 is turned up and the hole 20 is viewed from the front, the locked member 30 is exposed, and the fixing arms 32 and 32 at both ends thereof are the skin material 4S on the side of the skin material tongue 10. It is a structure hidden in.
And when it is the structure of the hole 20 as mentioned above, when the skin material tongue piece 10 is turned up with reference to FIG.2 and FIG.3, in addition to the cord-shaped to-be-latched member 30, the hole 20 The pipe frame 22 and the pad member 4P arranged in the back are exposed so as to be visible.

(Resin insert)
Therefore, in the present embodiment, the resin insert 40 is configured to cover the pipe frame 22 and the pad member 4P disposed at the back of the hole 20.
The resin insert 40 is a flexible flat plate member (typically made of resin such as polyethylene resin or polypropylene resin), and can be stored in the hole 20 by being folded in two (inwardly folded). With a long length.
The resin insert 40 includes a locking portion 44 and a hinge portion 42 which will be described later. The hinge portion 42 is a groove-like portion formed in the width direction at the center of the back surface of the resin insert 40. And when accommodated in the hole 20, the resin insert 40 (so-called leaf spring configuration) biased in the expanding direction can be relatively easily folded inward by the hinge portion.
The resin insert 40 has a width dimension W2 set to be less than the axial length dimension W1 of the above-described locked member 30 (preferably substantially the same as the width dimension W4 of the skin tongue 10). The pair of fixed arms 32, 32 can be fitted and inserted around the locked member 30 (see FIG. 1) without being in the way.

(Locking part)
The locking portion 44 is a portion for locking to the locked member 30 in the hole 20 when the resin insert 40 is folded inward. It forms in the resin insert 40 by the position arrangement | positioning which faces (refer FIG. 3).
The locking portion 44 of the present embodiment is configured such that a pair of grip arms 46 and 46 (vertical section substantially rectangular shape) that are vertically spaced from the back surface of the resin insert other piece 40F protrude from the back surface of the resin insert 40. Yes.
In a closed state described later, a cord-like locked member 30 is inserted and locked between a pair of gripping arms 46 and 46 (both made of resin). At this time, the pair of gripping arms 46 and 46 are pressed and fitted to the locked member 30, and the pair of gripping arms 46 and 46 are bent and deformed so as to be separated from each other, and a fitting groove provided in the middle of the protruding direction. The to-be-latched member 30 is fitted into 48 and 48. By doing so, the locked member 30 can be locked to the pair of locking portions 44 with a moderate feeling.

Then, referring to FIG. 2, after the skin material tongue piece 10 is sutured and fixed to the surface side of the resin insert other piece 40 </ b> F (sewn line SEW), the resin insert 40 is folded inward so that the hinge portion 42 can be expanded. The shape. Then, the resin insert piece 40B is fitted between the pair of fixed arms 32, 32, and is positioned and arranged in the depth of the hole 20 while leaning against the pipe frame 22, so that the resin insert 40 is locked. Arrange around.
By carrying out like this, the opening / closing operation | movement of the skin material tongue piece 10 can be interlocked with the inward folding operation | movement of the resin insert other piece 40F with respect to the resin insert one piece 40B, and an expansion operation.

(Locking structure)
Referring to FIG. 3A, in a normal state in which the child seat 60 (see FIG. 1) is removed from the vehicle seat 2, the resin insert other piece 40F is folded inward with respect to the resin insert piece 40B, and the skin material tongue The piece 10 is closed. Then, in order to maintain the folded shape of the resin insert 40 (so that the skin cover is not in an open state), the locking portion 44 provided on the back side of the resin insert other piece 40F is stably locked to the locked member 30. Keep it. By carrying out like this, the skin material tongue piece 10 becomes difficult to open arbitrarily, and it can be set as a stable closed state.
Moreover, the latching of the resin insert 40 gives a firm feeling to the skin material tongue piece 10 in the closed state, and the locking structure can be configured with good appearance even in the closed state.

On the other hand, when the child seat 60 is mounted on the vehicle seat 2, the top tether 62 fixed to the upper portion of the child seat 60 is hung from the upper portion of the seat back 6 of the vehicle seat 2 to the rear side of the seat cushion 4. (See FIG. 1).
And with reference to FIG.3 (b), by expanding the resin insert other piece 40F with respect to the resin insert one piece 40B, the skin material tongue piece 10 is made into an open state, and the to-be-latched member 30 is exposed outside. . At this time, the hole portion 20 has a good-looking configuration in which the hole portion 20 (the pad member 4P and the pipe frame 22) is covered with the resin insert piece 40B. Then, the child seat 60 is mounted on the seating side of the vehicle seat 2 by engaging the hook member 64 provided at the tip of the top tether 62 with the locked member 30.
Thus, according to the locking structure of the present embodiment, the locking structure can be configured with better appearance using the skin material tongue 10 of the vehicle seat 2.

[Example 2]
Since the basic structure of the locking structure of the second embodiment is almost the same as that of the first embodiment, the same or corresponding structures are denoted by corresponding reference numerals, and detailed description thereof is omitted.
And in the latching structure of Example 2, with reference to FIG. 4, the resin insert 40a has comprised the substantially T shape in front view. That is, the resin insert piece 40aB arranged inside the hole 20 is configured to be wider than the resin insert other piece 40aF that fixes the skin material tongue piece 10.
More specifically, the width dimension W2 of the resin insert other piece 40aF is narrower than the axial length dimension (separation dimension of the pair of fixed arms 32, 32) W1 of the cord-like locked member 30. On the other hand, the width dimension W3 of the resin insert piece 40aB is wider than the separation dimension W1 of the pair of fixed arms 32, 32.

(Groove)
The resin insert piece 40aB is provided with a pair of grooves 50, 50 extending from the upper end of the resin insert piece 40aB toward the other piece 40aF.
The pair of grooves 50 and 50 are arranged in the width direction of the resin insert piece 40aB so that the fixing arms 32 of the locked member 30 can be respectively fitted when the resin insert 40a is folded inward. They are spaced apart by a length dimension W1 and arranged in parallel.

Then, referring to FIG. 4 (two-dot broken line state), the resin insert 40aF is folded inward while the fixing arm 32 is fitted in the grooves 50 and 50 provided in the resin insert piece 40aB. Then, the resin insert piece 40aB is inserted between the pair of fixed arms 32, 32 and positioned in the depth of the hole 20 while leaning against the pipe frame 22, so that the resin insert 40a is locked. Arrange around.
With such a configuration, when the above-mentioned locked member 30 is exposed to the outside with the skin material tongue piece 10 opened, the structure behind the hole 20 is formed by the wide resin insert other piece 40aB. It will be hidden over a wider area. For this reason, for example, even if the inside of the hole portion 20 is viewed from an oblique side, the depth of the hole portion 20 is covered with the wide resin insert piece 40aB and cannot be seen. it can.

The locking structure of the present embodiment is not limited to the above-described examples, and can take other various embodiments.
(1) In this embodiment, the locking structure has been described by taking the top tether 62 of the child seat 60 as an example. Unlike this, the present locking structure can also be applied to the case where the locking arm 66 (an example of a locking tool) of the child seat 60 is fixed.
That is, the vehicle seat 2 is provided with a second hole (not shown) for inserting and locking the locking arm 66 of the child seat 60 with reference to FIG. A member to be locked that can lock the locking arm 66 is accommodated in the second hole portion, and after the resin insert is disposed, it is covered with the skin material tongue formed by a part of the skin material 6S. It is good also as a structure.

(2) In this embodiment, the example in which the hole 20 is provided in the seat cushion 4 has been described. Alternatively, the hole 20 may be provided in the seat back 6 or other seat configuration (for example, a seat headrest). The hole 20 may be formed at any position on the seat cushion 4 or the seat back 6 as long as other seats can be stably mounted.
(3) Moreover, in the present Example, the skin material tongue piece 10 which will be in an open state by turning up was demonstrated. Since the skin material tongue piece 10 of the present embodiment is fixed to the resin insert 40 as described above, the skin material tongue piece 10 can be configured to be turned down, or can be configured to be turned left or right. It is.
The skin material tongue piece 10 does not need to be connected to the surrounding skin material 4S. For example, after the skin material tongue piece 10 is cut off, the skin material tongue piece 10 may be attached to the resin insert 40 and fixed.
As a method for fixing the skin material tongue to the resin insert, in addition to the above-described stitching, a physical fixing means such as a screw or a bolt, or an adhesive fixing means such as a fusion or an adhesive may be used.

(4) In the present embodiment, as an example of the locking portion provided in the resin insert 40, the example of the locking portion 44 including the pair of gripping arms 46 and 46 (configuration example with high locking strength) has been described. As long as the locking portion of the resin insert 40 can be locked to the locked member 30, for example, the hook member 64 of the top tether 62 can be applied as a configuration of the locking portion of the resin insert 40.
(5) In the present embodiment, the groove-like hinge portion 42 has been described as an example (an example of a simple configuration). If this hinge part 42 is the structure which can fold the resin insert 40 inward, it can also be set as the structure which has the notch part and the notch part which notched the width direction part of the resin insert 40, for example. In this way, the resin insert 40 can be easily folded inward by making the resin insert 40 thinner or thinner in the middle.
Further, in this embodiment, the hinge portion 42 is provided at a position where the resin insert 40 is folded in two, but the formation position is not limited. For example, it is possible to conceal a wider range of structures behind the hole by providing a hinge portion at a position where the resin insert piece is longer (larger) than the other resin insert piece.

(6) In the second embodiment, the resin insert 40a having a substantially T-shape when viewed from the front is described as an example. The resin insert can take various shapes depending on the structure behind the hole to be hidden. For example, the resin insert may have a substantially inverted L shape when viewed from the front. Moreover, it is good also as a structure which provides the insertion hole which can insert the to-be-latched member 30 from the front instead of the groove part 50 on resin insert one piece 40aB.
(7) In the present embodiment, the example in which the cord-like (or rod-like) locked member 30 is fixed to the pipe frame 22 has been described. Unlike this, it is good also as a simple structure which fixes a to-be-latched member to the side frame which comprises the vehicle seat side part in the shape of a bridge.
Further, in this embodiment, the example in which the locked member 30 is fixed in parallel to the pipe frame 22 has been described. However, as long as the locking device of another sheet can be locked, the pipe frame 22 is fixed. The locked member 30 can also be disposed in an orthogonal or inclined manner.
(8) In the present embodiment, the child seat 60 is illustrated as another sheet, but the present locking structure can be applied to various other sheets including a locking tool.

It is a perspective view of the back surface of a vehicle seat. (A) is a perspective view of the rear side of the seat cushion showing a part of the locking structure, and (b) is a perspective view showing the locking structure in a closed state. (A) is a longitudinal cross-sectional view of the rear side of the seat cushion showing the locking structure in the closed state, and (b) is a vertical cross-sectional view showing the locking structure in the open state. It is the perspective view of the seat cushion spine back which showed the latching structure concerning Example 2 partially exploded.

Explanation of symbols

2 Vehicle Seat 4 Seat Cushion 6 Seat Back 10 Skin Material Tongue 20 Hole 22 Pipe Frame 30 Locked Member 32 Fixed Arm 40B Resin Insert One Piece 40F Resin Insert Other Piece 42 Hinge 44 Locking 46 Grip Arm 48 Fitting Groove 50 Groove 60 Child seat 62 Top tether 64 Hook member 66 Locking arm P Pad member S Skin material

Claims (2)

When other seats such as a child seat are mounted on a vehicle seat, a locking tool such as a top tether provided on the other seat is locked to a locked member in a hole formed in the vehicle seat. In the locking structure of the locking tool,
The hole portion is configured to cover an openable and closable portion with a skin material tongue formed by a part of the skin material of the vehicle seat, and a flexible plate-like resin plate is folded inward so as to be expanded. Arranged around the to-be-latched member so that the one piece of the resin plate is arranged at the back of the hole,
By folding the resin plate other piece inward with respect to the resin plate piece, the skin material tongue piece fixed to the front side of the resin plate other piece is in a closed state, and provided on the back side of the resin plate other piece. While locking the locking portion to the locked member,
A locking structure of a locking tool configured to expose the locked member by opening the resin plate other piece to the resin plate piece to open the skin material tongue piece. The cable-like or rod-like locked member is arranged in parallel to the skin material side of the frame exposed in the hole, and fixed to the frame by a pair of arm members provided at both ends of the locked member. ,
The one piece of the resin plate is configured to be wider in the width direction of the hole than the separation dimension of the pair of arm members,
The locking device according to claim 1, wherein the resin plate is folded inward and fitted around the locked member while being fitted into the arm member in a groove provided in the resin plate piece. Construction.

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