JP2000335294A - Support structure of child seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve a comfortable seating when a child seat is not installed, while securing easiness of installation and removal of the child seat. SOLUTION: An anchor rod 2 is constructed free to rotate around an axis center between channels under a seat back. A protruded anchor member 3 is provided on a peripheral surface of the anchor rod 2 such that its end faces an upper surface of a rear end portion of a seat bottom. A position changing means 4 is provided for changing the anchor member 3 between a latching position where a child seat may be latched and a receding position where the anchor member 3 does not interfere with lumbar part of an occupant seated on a seat.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a child seat support structure detachably attached to a vehicle seat.

[0002]

2. Description of the Related Art Conventionally, there is known a support structure for securely holding a child seat detachably attached to a vehicle seat on a seat back. The support structure corresponds to the pair of width-direction locking projections projecting rearward from the lower rear end of the child seat and the locking projections between the rear end of the seat bottom and the lower end of the seat back. And an anchor which is an inverted U-shaped locked member interposed therebetween. The anchor is interposed between the seat bottom and the seat back with its distal end being viewed through a gap, and the child seat is held on the seat bottom by engaging a locking projection with the anchor.

[0003]

By the way, in the conventional child seat support structure as described above, the anchor is projected from the gap between the seat back and the seat bottom toward the seating surface. However, when the child seat is removed and the user sits on the seat, the distal end of the anchor interferes with the waist of the occupant, resulting in a very poor sitting comfort. This tendency is remarkable when the seat back is tilted backward.

[0004] Therefore, it is conceivable to provide the anchor in the gap between the seat bottom and the seat back so as not to protrude from the seating surface to the outside. However, in this case, the poor sitting comfort when the child seat does not exist is eliminated. However, there is a new problem that the operation of attaching and detaching the child seat becomes difficult.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and it is intended to ensure the ease of attaching and detaching operations of a child seat and realize comfortable sitting on the seat when there is no child seat. It is an object of the present invention to provide a child seat support structure capable of supporting a child seat.

[0006]

According to the first aspect of the present invention,
A child seat in which an anchor member for locking a child seat is interposed between a seat bottom erected and supported between a pair of channels in the width direction and a seat back erected between the channels at the rear of the seat bottom. The support structure of the above, wherein the anchor rod is cross-linked rotatably around the axis between the respective channels at a position below the seat back, the anchor member, so that the front end faces the rear end upper surface of the seat bottom A position protrudingly provided on the peripheral surface of the anchor rod and changing the position of the anchor member between a locking position at which the child seat can be locked and a retracted position retracted to a position not interfering with the waist of a seated person on the seat. A change means is provided.

According to the present invention, the position of the anchor member is set to the locking position by operating the position changing means, so that the distal end of the anchor member protrudes above the seating surface from between the seat bottom and the seat back. Therefore, the child seat is mounted on the seat by locking a predetermined locking member provided at the rear end of the child seat to the front end of the protruding anchor member.

When the child seat is not mounted on the seat, the tip of the anchor member may be set to the retracted position by operating the position changing means. By doing so, the tip of the anchor member retracts from the seating surface of the seat,
Even if the user sits on the seat in this state, the distal end of the anchor member does not contact the waist of the seated person.

As described above, by operating the position changing means, the anchor member is moved between the locking position where the child seat can be locked and the retracted position where it is retracted to a position where it does not interfere with the waist of the seated person on the seat. As a result, the child seat can be comfortably seated when there is no child seat, while ensuring the ease of attaching and detaching operation of the child seat.

According to a second aspect of the present invention, in the first aspect of the present invention, the position changing means includes an urging means for urging the anchor rod about the axis so that the anchor member is directed to the locking position; It is characterized by locking means for removably locking the anchor member so as not to move from the retracted position to the locking position against the urging force of the urging means.

According to the present invention, the anchor member is normally set at the locking position by the rotation of the anchor rod by the urging force of the urging means, while the anchor rod is set against the urging force of the urging means. In the state set in the retracted position, the retracted position of the anchor member is maintained by turning on the locking means. Conversely, when the locking means is turned off in a state where the anchor member is set at the retracted position, the anchor member returns to the locked position by the urging force of the urging means.

According to a third aspect of the present invention, in the second aspect of the present invention, the locking means includes a locked metal member rotatably fixed to the anchor rod, and a channel corresponding to the locked metal member. A lever member rotatably mounted around the support shaft. The lever member is configured to removably lock the return of the anchor member to the locking position in a state where the anchor member is located at the retracted position. It is characterized by being configured as follows.

According to the present invention, the anchor member protruding to the outside from the gap between the seat bottom and the seat back is pressed toward the surface side of the seat bottom, so that the anchor member corotates around the anchor rod. The leading end presses down on the pad on the seat bottom to be sunk, thereby avoiding interference with the waist of the seated person. Then, in this state, the locked metal that rotates together with the anchor rod is locked by the lever member, thereby locking the anchor member from returning to the locked position.

By operating the lever member in a predetermined direction in a state where the anchor member is locked at the retracted position by the lever member, the locking of the locked metal member by the lever member is released, and the attachment of the urging means is performed. The force returns the anchor member to its original locked position.

[0015]

FIG. 1 is a perspective view showing an embodiment of a vehicle seat to which a child seat support structure according to the present invention is applied. As shown in this figure, the child seat C has a depression in which the infant is seated, which is formed in the center by being integrally formed with the seat and the backrest, and provided with a pair of side walls in the width direction.

At the lower rear end of the child seat C, a pair of locking projections C1 in the width direction for mounting on the vehicle seat S is provided so as to protrude therefrom, while the seat bottom S1 and the seat back S2 are connected. A support structure 1 for supporting the child seat C is provided at the gap position, and an anchor member 3 of the support structure 1 which will be described later is a seat bottom S.
1 and the seat back S2 protrude toward the seat surface. When the locking projection C1 is locked to the anchor member 3, the mounting state of the child seat C to the vehicle seat S is stabilized, and the child seat C is prevented from being thrown forward when the vehicle is suddenly stopped. ing.

FIG. 2 is an exploded perspective view showing the first embodiment of the support structure 1. 3 and 4 are assembly perspective views of the support structure of FIG. 1. FIG. 3 shows a state in which the anchor member 3 is set to a locking position, and FIG. 4 shows a state in which the anchor member 3 is set to a retracted position. Each state is shown. FIG. 5 is a perspective view taken along line A of FIG.

The vehicle seat S (FIG. 3) is supported by a pair of sliders 9 in the width direction disposed on the floor of the vehicle so as to extend in the front-rear direction. The slider 9 includes a lower channel 91 fixed to the floor, and an upper channel 9 supported by the lower channel 91 so as to be movable back and forth.
The seat bottom S1 is fixed to the pair of upper channels 92. Brackets 93 are formed on the rear upper surface of each upper channel 92 so as to face each other in the width direction, and the lower edge of the seat back S2 is sandwiched between the brackets 93.

The support structure 1 of the present invention is attached to the bracket 93 as described above. An anchor rod 2 bridged between the brackets 93 and a child seat C fixed to the anchor rod 2 are provided. A pair of anchor members 3 in the width direction to be engaged with the locking projections C1 (FIG. 1), and the anchor members 3 interfere with the locking position where the child seat C can be locked and the waist of the seated person on the seat. And a position changing means 4 for changing the position between the evacuation position and the evacuation position.

The anchor rod 2 is composed of a rod body 21 slightly shorter than the inner dimension between the pair of brackets 93, and a cylindrical end tube body 22 protruding concentrically from both end surfaces of the rod body 21. ing. The anchor rod 2 is inserted between screw holes 94 which are threaded through the pair of brackets 93 so as to face each other. The distal ends of the bolts B threaded through the screw holes 94 are fitted into the end cylindrical body 22 in a sliding contact state, so that the anchor rod 2 is rotatable around the axis.

The anchor member 3 is formed by bending a rod into an inverted U-shape. The anchor member 3 is fixed to the peripheral surface of the rod body 21 by welding both ends thereof.

When the anchor member 3 is set at the locking position, as shown in FIG. 3, the front end extending horizontally extends from the rear end of the seat bottom S1 to the seat back S.
2 projecting obliquely upward from the gap with the lower end of the seat 2 so that the engaging projection C1 of the child seat C can engage with the projecting portion as shown in FIG. It has become.

In the state where the anchor member 3 is set at the retracted position, as shown in FIG. 4, the distal end of the anchor member 3 sinks into the pad of the seat bottom S1 so as not to interfere with the waist of the seated person. Has become.

The position changing means 4 includes a first coil spring (urging means) 5 for urging the anchor rod 2 around the axis so that the anchor member 3 moves toward the locking position, and a first coil spring 5 And locking means 6 for removably locking the anchor member 3 so as not to move from the retracted position to the locked position against the urging force of the anchor member 3.

The locking means 6 includes a locked metal member 7 fixed to one end of the anchor rod 2 so as to be rotatable about an axis, and locks and locks the locked metal member 7. An operation lever 8 for performing a release operation is provided.

The first coil spring 5 applies an urging force to the locked metal member 7, and the anchoring member 3 normally causes the locked metal member 7 to move as shown in FIG. The above-mentioned locked metal fitting 7 which is set at the locking position via the anchor rod 2 has a mounting hole 7 which is fitted to the end cylindrical body 22 of the anchor rod 2 on the base end side.
As shown in FIG. 5, the mounting hole 71 is integrated with the anchor rod 2 by being fitted to the end cylindrical body 22 and being welded and stopped. The locked metal member 7 is
On the distal end side, there is a locked piece 72 formed by being bent at a substantially right angle toward the right bracket 93, while the right bracket 93 has the center of the screw hole 94 as a center. An arc groove 95 into which the locked piece 72 fits is provided. The arc groove 95 is formed in the upper front part of the screw hole 94, and is formed so that the anchor member 3 can co-rotate around the anchor rod 2 between the locking position (FIG. 3) and the retracted position (FIG. 4). Length is set.

The upper end of the arc-shaped groove 95 is set so that the distal end of the anchor member 3 does not contact the seat back S2 when the locked piece 72 is located at the locking position. The inconvenience of the anchor member 3 sinking into the seat back S2 is avoided.

The inner diameter of the first coil spring 5 is set slightly larger than the outer diameter of the end tube 22 of the anchor rod 2, and can be fitted to the end tube 22. The first coil spring 5 has a locking end 51 formed by linearly pulling out both sides of the coil and bending the ends of each side in opposite directions.
Is provided.

A notched groove 73 is provided in the locked metal member 7 at a position facing the one locking end portion 51, and a locking hole is formed in the bracket 93 at a position rearward of the screw hole 94. 96 is drilled, and each locking end 51 is fitted into the notch groove 73 and the locking hole 96, whereby the locked metal member 7 is urged clockwise around the anchor rod 2. Usually, the rotation of the anchor rod 2 causes the anchor member 3 to be set at the locking position facing upward as shown in FIG.

The operation lever 8 is supported by a bracket 93 and is supported by a bracket 93 so as to be rotatable around a support shaft 81a. The lever body 81 extends forward from a front end of the lever body 81. Handle 82 and lever body 8
And a hook member 83 extending radially upward from one rotation center. The support shaft 81a is
The hook member 83 is provided at a position slightly lower than the lower end of the circular arc groove 95, and thereby extends upward from the support shaft 81a.
Are in a state of interfering with the arc groove 95.

The hook member 83 has a hook 84 projecting forward from the upper end thereof to lock the locked piece 72. The hook 84 has an inclined edge 84a inclined forward and downward at the upper edge, and the lower edge is angled slightly smaller than 90 ° with respect to the main body of the hook member 83, As a result, the locked piece 72 is locked by the hook 84 in a state where the locked piece 72 is located at the lower end of the arc groove 95, and the clockwise rotation of the locked metal member 7 around the anchor rod 2 is performed. It is to be blocked.

A second coil spring 85 is stretched between the lever main body 81 and the upper channel 92, whereby an urging force is applied to the operation lever 8 in a counterclockwise direction around the support shaft 81a. Have been. Therefore,
The locked state of the locked piece 72 by the hook 84 is maintained, and by operating the handle 82 upward, the operating lever 8 rotates clockwise around the support shaft 81a, thereby The stopper 72 comes off the hook 84,
The urging force of the first coil spring 5 rotates clockwise around the anchor rod 2.

Conversely, when the anchor member 3 is pressed downward, the locked metal member 7 moves the anchor rod 2.
Is rotated in the counterclockwise direction around the axis of the shaft, and the locked piece 72 interferes with the inclined edge portion 84a to push the hook 84 rearward.
The hook 84 is rotated clockwise around a, so that the hook 84 escapes from the arc groove 95. As a result, the locked piece 72 moves to the lower end of the arc groove 95 by pushing the hook 84. In this state, the operation lever 8 rotates counterclockwise around the support shaft 81a by the urging force of the second coil spring 85,
The locked piece 72 is locked by the hook 84.

According to the structure of the position changing means 4, the anchor member 3 usually rotates clockwise around the anchor rod 2 through the locked metal member 7 by the urging force of the first coil spring 5. It is set at a locking position facing obliquely upward. Then, by pressing the anchor member 3 at this locking position downward, the anchor member 3
Is the anchor rod 2 against the urging force of the first coil spring 5.
It turns around counterclockwise, its tip is immersed in the pad of the seat bottom S <b> 1, and the locked piece 72 is locked by the locking means 6 and set to the retracted position.

FIGS. 6A and 6B are explanatory views for explaining the operation of the support structure 1 of the first embodiment. FIG. 6A shows that the child seat C is locked by the anchor member 3 set at the locking position. The state (B) shows a state in which the position of the anchor member 3 is being changed from the locking position to the retracted position, and (C) shows a state in which the anchor member 3 is set to the retracted position.

First, in the state shown in FIG. 6A, the distal end of the anchor member 3 protrudes toward the seat from the gap between the seat bottom S1 and the seat back S2. Are locked.

When the child seat C is not present in the vehicle seat S, the anchor member 3 protruding from the seating surface is in the way, so that the anchor member 3 is pressed downward as shown by the arrow in FIG. I do. Then, the anchor member 3 rotates counterclockwise around the anchor rod 2 against the biasing force of the first coil spring 5, and the locked metal member 7 integral with the anchor rod 2 also rotates counterclockwise. Therefore, the hook 84 of the operation lever 8 is pressed by the locked piece 72 in the circumferential direction.

Since the pressed portion of the hook 84 is the inclined edge portion 84a, a component force is generated in the hook member 83 in the clockwise direction around the support shaft 81a. It turns clockwise against the urging force of the two-coil spring 85 and escapes from the locked piece 72. Therefore, when the downward pressing of the anchor member 3 is continued, the locked piece 72 reaches the lower end of the arc groove 95 by pushing the hook 84.

When the locked piece 72 reaches the lower end of the circular arc groove 95, the hook 84 is no longer interfered with by the locked piece 72, so that the hook member 83 is connected to the second coil spring 85.
6 rotates counterclockwise around the support shaft 81a, and the locked piece 72 is locked by the hook 84 as shown in FIG. In this state, as shown in FIG. 6C, the anchor member 3 is sunk in the pad of the seat bottom S1, so that the waist of the occupant hits the anchor member 3 and the sitting comfort is poor. Such inconveniences are avoided.

To change the position of the anchor member 3 from the retracted position shown in FIG. 6C to the locking position shown in FIG.
It is sufficient that the user grips 2 and pulls it upward. Then, the locking of the locked piece 72 by the hook 84 is released by the clockwise rotation of the hook member 83 around the support shaft 81 a, whereby the anchor member 3 is moved by the urging force of the first coil spring 5. It turns clockwise two times and returns to the locked position as shown in FIG.

FIGS. 7A and 7B are perspective views showing a second embodiment of the support structure 1a. FIG. 7A is an exploded perspective view and FIG. 7B is an assembled perspective view. As shown in this figure, in the second embodiment, an operation button 86 is employed in place of the operation lever 8, and an elastic locked plate 74 that is operated by a pressing operation of the operation button 86 is a locked metal fitting. 7 is different from the support structure 1 of the first embodiment in that it is attached to the support structure 7. Other structures are the same as those of the first embodiment.

As shown in FIG. 7A, the operation button 86 extends concentrically with a column-shaped button main body 86a and on the base end side (left side in FIG. 7) of the button main body 86a. It comprises a cylindrical pressing piece 86b and a flange 86c interposed between the pressing piece 86b and the button body 86a. A decorative screw 8 is provided on the tip end surface of the button body 86a.
A screw hole for screwing the screw 7 is provided.

On the other hand, at a position separated from the lower end of the arc-shaped groove 95 of the bracket 93 by a predetermined distance forward, a pressing piece 86 is provided.
A button support member 88 having a U-shape in plan view is provided with a fitting hole 97 into which the button b is fitted in the sliding contact state and a fitting hole into which the button body 86a is fitted in the sliding contact state.
Are fixed by welding stoppers or the like.

The button body 86a is fitted into the fitting hole of the button support member 88 with the pressing piece 86b into which the third coil spring 89 is fitted into the fitting hole 97 of the bracket 93. By fixing both sides of the support member 88 to the bracket 93, as shown in FIG.
It will be in the state of being attached to.

Therefore, the operation button 86 is moved to the bracket 93
When the button body 86a is mounted on the button support member 86a, the button body 86a projects rightward from the button support member 88 by the urging force of the third coil spring 89 which is in a state of being stretched between the bracket 93 and the button support member 88. While the amount of protrusion is maximum, the pressing piece 86 b has a minimum amount of protrusion to the left, while the decorative screw 87 is turned to the left against the urging force of the third coil spring 89. By pressing, the operation button 86 moves to the left, and the pressing piece 86b is
6 will project leftward.

The elastic locked plate 74 is formed by a leaf spring, and is fixed to the rear surface (the left side in FIG. 7) of the locked metal fitting 7 so as to protrude forward. The elastic locked plate 74 has a pressed portion 74a formed at a position corresponding to the insertion hole 97, and a locked piece 74b formed by bending the distal end portion toward the bracket 93.
Is provided, while the locked piece 74 of the bracket 93 is provided.
A locking hole 98 is drilled at a position corresponding to b, and the locked piece 74b is set in a state where the anchor member 3 is set at the retracted position as shown by a solid line in FIG. Lock hole 98
, Whereby the return of the anchor member 3 to the locked position by the urging force of the first coil spring 5 is prevented.

According to the support structure 1a of the second embodiment, the third coil spring 8 is set in a state where the anchor member 3 is set at the retracted position by the engagement of the locked piece 74b into the locking hole 98.
9 against the urging force of the decorative screw 87, the pressing piece 86b is pressed against the pressed portion 74a of the elastic locked plate 74.
Press to the left.

The elastic locking plate 7 is pressed by this pressing.
4 is elastically deformed and bent leftward as shown by a two-dot chain line in FIG.
7, the anchor rod 2 rotates clockwise around the axis by the urging force of the first coil spring 5, and the anchor member 3 moves from the retracted position shown by the solid line in FIG. Change the position to the locking position shown.

Conversely, when the position of the anchor member 3 at the locking position is changed to the retracted position, the anchor member 3 shown by a two-dot chain line in FIG. Then, when the anchor member 3 moves to the position shown by the solid line, the anchor rod 2 rotates counterclockwise, whereby the elastic locked plate 74 also rotates in the same direction,
The locked piece 74b fits into the locking hole 98, so that the anchor member 3 is prevented from returning to the locked position.

[0050]

According to the first aspect of the present invention, the anchor member is moved between the locking position where the child seat can be locked and the retracted position where it is retracted to a position where it does not interfere with the waist of the occupant sitting on the seat. Since the position changing means for changing the position is provided, the tip of the anchor member protrudes above the seating surface from between the seat bottom and the seat back by operating the position changing means to set the anchor member to the locking position. In this state, the child seat can be mounted on the seat by locking a predetermined locking member provided at the rear end of the child seat to the front end of the protruding anchor member. Conversely, when the child seat is not mounted on the seat, the distal end of the anchor member is retracted from the seating surface of the seat by setting the distal end of the anchor member to the retreat position by operating the position changing means, so that the distal end of the anchor member is The inconvenience of contacting the waist of the seated person can be avoided.

As described above, by providing the position changing means, the anchor member can be moved between the locking position at which the child seat can be locked and the retracted position retracted to a position which does not interfere with the waist of the occupant sitting on the seat. You can change the position,
It is possible to achieve comfortable seating in a state where the child seat does not exist while ensuring the ease of the operation of attaching and detaching the child seat.

According to the second aspect of the present invention, the anchor member can be normally set at the locking position by the rotation of the anchor rod by the urging force of the urging means, while the urging force of the urging means is counteracted. When the anchor rod is set to the retracted position, the retracted position of the anchor member can be maintained. Conversely, when the locking member is turned off in a state where the anchor member is set at the retreat position, the anchor member can be returned to the locked position by the urging force of the urging unit.

According to the third aspect of the present invention, the anchor member protruding outside from the gap between the seat bottom and the seat back is pressed toward the front side of the seat bottom, so that the anchor member is fixed to the seat bottom. In this state, the locked metal that co-rotates with the anchor rod is locked to the lever member. In this state, it is possible to prevent the anchor member from returning to the locked position. it can.

By operating the lever member in a predetermined direction in a state where the anchor member is locked at the retracted position by the lever member, the locking of the locked metal member by the lever member is released, and the attachment of the urging means is performed. The anchor member can be returned to the original locking position by the force.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a vehicle seat to which a child seat support structure according to the present invention is applied.

FIG. 2 is an exploded perspective view showing the first embodiment of the support structure.

FIG. 3 is an assembled perspective view of the support structure of FIG. 1, showing a state where an anchor member is set to a locking position.

FIG. 4 is an assembled perspective view of the support structure of FIG. 1, showing a state where an anchor member is set to a retracted position.

FIG. 5 is a perspective view taken along line A in FIG. 4;

FIGS. 6A and 6B are explanatory views for explaining the operation of the support structure according to the first embodiment. FIG. 6A shows a state in which the child seat is locked by an anchor member set at a locking position, and FIG.
Shows a state where the anchor member is being changed from the locking position to the retracted position, and (c) shows a state where the anchor member is set to the retracted position.

FIG. 7 is a perspective view showing a second embodiment of the support structure,
(A) is an exploded perspective view, and (B) is an assembled perspective view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support structure 2 Anchor rod 3 Anchor member 4 Position change means

Claims (3)

[Claims] An anchor member for locking a child seat is interposed between a seat bottom erected and supported between a pair of channels in the width direction and a seat back erected between the channels at the rear of the seat bottom. A support structure for a child seat, wherein an anchor rod is cross-linked between the respective channels at a position below the seat back so as to be rotatable around an axis, and the anchor member has a rear end portion at a front end of a seat bottom. The anchor member protrudes from the peripheral surface of the anchor rod so as to face the upper surface, and the anchor member is positioned between a locking position where the child seat can be locked and a retracted position where the anchor member is retracted to a position that does not interfere with the waist of a seated person on the seat. A support structure for a child seat, wherein a position changing means for changing the position is provided. 2. The position changing means includes: urging means for urging the anchor rod around the axis so that the anchor member moves toward the locking position; and urging the anchor member against the urging force of the urging means. 2. The child seat support structure according to claim 1, further comprising locking means for releasably locking so as not to go from the retreat position to the locking position. 3. A locking member fixedly rotatable to an anchor rod, and a lever member rotatably mounted on a channel corresponding to the locked metal member around a support shaft. The lever member is configured to removably lock the return of the anchor member to the locking position in a state where the anchor member is located at the retracted position. 3. The child seat support structure according to 2.