JP2002301961A - Child seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a child seat capable of preventing catching of the foot of a child at a tip end part of an adjusting belt 56 of a belt for the child and entanglement of the adjusting belt 56 when rotating a seat main body. SOLUTION: The child seat installed on a seat of an automobile, has a child belt installed on the seat main body 3, a quick adjuster 57 through which the adjusting belt 56 connected to a shoulder belt 55 of the child belt is inserted and which adjusts length of the shoulder belt of the child belt, and an automatic winding device 58 provided on the seat main body 3 and on which the tip end part of the adjusting belt 56 extending from the quick adjuster 57 is attached.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a child seat mounted on a vehicle seat.

[0002]

2. Description of the Related Art In general, when an infant is placed on a car or the like, it is specified that a child seat is used to protect the infant. The child seat is attached to an auxiliary seat or a rear seat of a passenger car by a seat belt or the like.

On the other hand, an infant belt for protecting an infant is attached to a seat body of the child seat. That is, as shown in FIG. 20, a buckle 54 is attached to a front portion of the seat portion of the seat body 3, and a shoulder belt of an infant belt is detachably attached to the buckle 54. The shoulder belt 55 is inserted into the back side of the seat body 3 and is connected to an adjustment belt 56 there. The adjustment belt 56 is inserted through a quick adjuster 57 provided at a front position in the seat.

Therefore, when the length of the shoulder belt 55 is adjusted by the quick adjuster 57 in accordance with the size of the infant, the excess belt is left as it is, or the button 56a is attached to the end of the belt and attached to the seat body. He was taking measures such as stopping.

However, when a button 56a or the like is attached to the end of the surplus belt and is fixed to the seat body, as shown in FIGS.
In the child seat having a function of forming a loop at the tip of No. 6 and allowing the infant to hook the foot on the loop and rotating the seat portion, there is a risk that the child seat may be tangled during the rotation as shown in FIG.

In view of the above, the present invention can prevent the infant from catching his / her feet on the tip of the adjustment belt 56 of the infant belt, and preventing the adjustment belt 56 from tangling when the seat body rotates. It is an object of the present invention to obtain a child seat that has been set as a child seat.

[0007]

The invention according to claim 1 is
In a child seat to be attached to a seat of a passenger car, an infant belt attached to a seat body and an adjustment belt connected to a shoulder belt of the infant belt are inserted therethrough, and a quick adjuster for adjusting a length of the shoulder belt of the infant belt is provided. And an automatic winding device provided on the seat body and to which a tip of an adjustment belt extending from the quick adjuster is attached.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view of a child seat according to the present invention, and FIG. 2 is an exploded perspective view of the child seat. The child seat includes a cradle 1, a reclining base 2, and a seat body 3. The reclining base 2 is mounted on the cradle 1 so as to be movable only in the front-rear direction, and the seat body 3 is mounted on the reclining base 2 so as to be rotatable around an axis perpendicular to the surface of the reclining base 2. .

By moving the reclining base 2 back and forth with respect to the receiving table 1, the seat body 3 can be brought into a state shown by a solid line or a dashed line in FIG. , Its reclining can be adjusted. Further, after the seat body 3 is brought into the state shown by the solid line in FIG. 4 and then inverted around the axis, it can be changed to the backward state as shown by the dashed line.

As shown in FIGS. 2 and 5, a guide groove 5 extending in the front-rear direction is provided on the left and right portions of the substrate portion 4 of the receiving table 1, and the recline base 2 is provided in the guide groove 5. The legs 6 extending in the front-rear direction provided on both sides of the lower part are slidably engaged. Guide groove 5
The bottom surface of the reclining base 2 is curved in a concave shape so that the bottom surface of the leg portion 6 of the reclining base 2 is also convex downward according to the shape of the bottom surface of the guide groove 5. It is curved. As shown in FIG. 2, an arc-shaped slot 7 is formed in the leg 6, and a reclining pin 8 provided on the receiving base 1 is engaged with the slot 7, and Thus, the reclining base 2 is held, and the range of movement is defined.

A rotary reclining rail 9 extending in the front-rear direction is provided at the center of the cradle 1. The rotating reclining rail 9 has a reclining guide portion 10 formed of a groove extending in the front-rear direction having parallel side walls, and a diameter of the reclining guide portion 10 at the rear end portion is larger than the groove width of the reclining guide portion 10. Is provided.
A pair of left and right grooves 14 on which a connection guide 13 provided on the back surface of the seat body 3 to be described later slides are formed in the upper part of the upright portion 12 of the cradle 1.
Are provided with connection pins 15 so as to be able to advance and retreat in the left-right direction.

A plurality of pairs of left and right lock holes 16 (three pairs in the figure) are provided in the front-rear direction on the bottom surface of the reclining guide portion 10 of the rotating reclining rail 9 provided at the center of the receiving table 1. In addition, a pair of right and left lock holes 17 are provided in the reversing guide portion 11.
The interval between the pair of left and right lock holes 16 and the interval between the pair of left and right lock holes 17 are the same, and are offset by the same dimension in directions opposite to each other with respect to the longitudinal axis of the cradle 1. That is, the above-mentioned longitudinal axis and the left lock hole 1
Spacing and 6, are set to be intervals and equidistant l ₁ of the longitudinal axis and the right side of the lock hole 17.

As shown in FIGS. 2 and 7, the seat body 3 mounted on the reclining base 2 is provided with a disk 20 at a lower portion thereof. Is projected downward through the reclining base 2. The guide piece 21 has parallel side surfaces 21a which are slidably guided on mutually parallel side walls of the reclining guide portion 10 of the rotary reclining rail 9, and slidably contacts the peripheral wall surface of the cylindrical portion of the reversing guide portion 11 on both front and rear surfaces. A rotatable arc-shaped portion 21b is formed (FIG. 6).

The guide piece 21 has two lock pins 22 inserted therethrough. The lower ends of the lock pins 22 are selectively inserted into and engaged with a pair of lock holes 16 or 17 of the rotary reclining rail 9. It is like that. The left and right lock pins 22 are connected to each other at the top, and a connecting portion 22 a of which is a reclining cam 23 pivotally attached to the disk 20.
The other end of the reclining cam 23 is connected via a link 25 to a reclining lever 24 pivotally mounted on the front side of the disk 20 (FIGS. 8 and 12). The reclining cam 23 and the disk 20
A spring 26 is stretched between the left and right sides, and the right and left lock pins 22 are urged downward.

Thus, the reclining lever 24
Is lifted, the reclining cam 23 swings via the link 25, and the right and left lock pins 22 are moved upward against the spring 26, so that the rotary reclining rail 9 is rotated.
Are disengaged from each pair of lock holes 16 or 17, and their engagement is released. On the other hand, when the reclining lever 24 is released, the lock pin 22 is pulled down by the spring 26 and is returned to the engagement state with the lock hole 16 or 17.

The disk 20 is provided with a rotating rail 27 extending in the circumferential direction.
A plurality of guides 29 fixed to the reclining base 2 are engaged with the reclining base 2 from above, and the disc 20 is guided by the guides 29 so as to be rotatable on the reclining base 2 together with the seat body 3. In addition, the rotating rail 2
7, a notch 27 is formed in a portion which is located rearward when the seat body 3 is in the forward state, as shown in FIG.
a is formed.

On the other hand, below the standing portion 12 of the cradle 1,
When the guide piece 21 of the seat body 3 is located at the position of the reversing guide portion 11, a rotation guide 28 that engages with the rotation rail 27 is provided. The above rotation guide 2
8 has a guide piece 28a projecting downward at the front end thereof, and the inner peripheral surface of the rotating rail 27 is slidably guided by the guide piece 28a.

In addition, as shown in FIG. 10, in the vicinity of the infant belt insertion opening of the core material 3a in the backrest portion of the seat body 3, as shown in FIG. The reinforcing plate 30 is mounted. As shown in FIG. 11, connection guides 13 are formed at both ends of the deformation prevention reinforcing plate 30 so as to be bent rearward, and the connection guides 13 are engaged with the groove portions 14 formed in the upright portions 12 of the cradle 1. The connection pin 1 is inserted into the arc-shaped reclining slit 13a formed in the connection guide 13.
5 is inserted and engaged. That is, the connection guide 13 is integrally formed with the deformation prevention reinforcing plate 30, and the connection guide 13 is also reinforced. Further, a pair of left and right belt insertion openings 30a are also formed in the deformation prevention reinforcing plate 30 to reinforce the belt insertion openings.

As shown in FIG. 3, when the seat body 3 is facing forward, the guide piece 21 is at the position of the reclining guide portion 10 of the cradle 1 and the lock pin 22
Is engaged and fixed in one of the lock holes 16, and
The connection pin 15 is inserted and engaged with the reclining slit 13 a of the connection guide 13. Therefore, by operating the reclining lever 24, the lock pin 22
Is released from the lock hole 16, the seat body 3 is moved back and forth, and the lock pin 22 is engaged with the other lock hole 16, so that the reclining can be adjusted as shown by the solid line or the dashed line in FIG. it can.

On the other hand, when the lock pin 22 is released from the lock hole 16 and the seat body 3 is further moved backward to move the guide piece 21 to the position of the reversing guide portion 11, the movement of the guide piece 21 causes the movement of the guide piece 21 to be described later. As described above, the connection pin 15 is retracted, the engagement between the connection guide 13 and the connection pin 15 is released, and the seat body 3 is brought into a state shown by a solid line in FIG. At this time, the rear end of the disk 20 of the seat body 3 is
8 is inserted below. Therefore, when the seat body 3 is inverted by 180 °, the seat body 3 is used backward as shown by the dashed line in FIG. 4, and the lock pin 22 is engaged with the lock hole 17 and the position is fixed. As shown in FIG. 9, the rotating rail 27 of the disk 20 is engaged with the guide piece 28a of the rotating guide 28, so that the forward and backward movement of the seat body 3 is reliably prevented.

By the way, FIG. 12 and FIG.
As shown in FIG. 3, the first cam 3
1 is swingably provided, and below the reclining guide portion 10, a second cam 32 is swingably provided. The first cam 31 and the second cam 32 can protrude upward from openings 33 and 34 formed in the reversing guide portion 11 and the reclining guide portion 10, respectively. When the first cam is raised and its tip protrudes above the rotary reclining rail 9, the other cam is connected by the link 35 so as to be retracted from the rotary reclining rail 9. In other words, the guide piece 21 is
When the guide piece 21 moves, the first cam 31 is tilted by the movement of the guide piece 21. When the guide piece 21 moves from the reversing guide portion 11 to the reclining guide portion 10, the second cam 32 is tilted. ing. And the first
A lower end of the cam 31 is connected to a link rod 36 at one end, and the other end of the link rod 36 is connected to a bell crank 37 provided at the rear of the cradle 1.

A lock cam 38 is pivotally mounted on the same shaft as the first cam 31. The lock cam 38 is provided with a lock piece 38a protruding above the reversing guide portion 11, and a projection 38b having an upwardly inclined portion formed on the front face behind the lock piece 38a. The lock piece 38a is erected by a spring 39 so as to rise and protrude above the reversing guide portion 11.

An operation dial 40 having a knob is provided on the front side of the cradle 1 so as to be rotatable around a vertical axis.
An operation shaft 41 is attached to one end of the operation dial 40. The rear end of the operation shaft 41 is bent in an L-shape, and the bent portion 41a is inserted into a long hole 42a extending in the front-rear direction of a support member 42 that supports the first cam 31 and the lock cam 38. And the first cam 3
1 and behind the lock cam 38. Also,
The other end of the operation dial 40 has a dial spring 4
3 has one end attached to the dial spring 4
3, the operation shaft 41 is urged forward.

On the other hand, as shown in FIG. 14, a connection pin holding plate 44 is provided on the upper back surface of the upright portion 12 of the cradle 1, and the connection pin holding plate 44 is provided slidably up and down. The cam plate 45 is connected to the bell crank 37 by a link 46. The connection pin holding plate 44 is provided with an intermediate portion of an operation arm 47 pivotally attached to the left and right sides of the cam plate 45, and a long hole 47a provided at the upper end of each operation arm 47.
The protrusions 15a of the left and right connection pins 15 are engaged with and connected to the cam plate 45, respectively.
Are engaged with the cam groove 48. And the cam plate 45
Is lowered downward against a spring 49 stretched between the connection pin holding plate 44 and the upper end of the operation arm 47 is swung in a direction approaching each other by engagement with the cam groove 48, Is moved in the retracting direction.

However, the operation dial 4 is always used.
0 is urged in a certain direction by the dial spring 43, so that the operation shaft 41 is pulled in the direction of the operation dial 40, and the operation shaft 41 is engaged with the concave portion 31a of the first cam 31. The rotation of the first cam 31 and the lock cam 38 is suppressed by the operation shaft 41. Therefore, the seat body 3
When the guide piece 21 is moved backward to the reversing guide section, the first cam 31 and the lock cam 38
To rotate the two, but the first cam 3
Since the rotation of the first and lock cams 38 is suppressed by the operation shaft 41, it is impossible for the seat body 3 to move to the position of the reversing guide portion 11 (FIG. 15).
(A)).

In order to change the seat body 3 from the front use state to the rear use state, the operation dial 40 is turned on in FIG.
3, the operation shaft 41 is rotated counterclockwise.
Slides in the long hole 42a of the cam supporting member 42, and FIG.
As shown in (b), the operation shaft 41 is separated from the concave portion 31a of the first cam 31, the lock of the first cam 31 is released, and the movement of the seat body 3 to the reversing guide portion 11 becomes possible. When the operation dial 40 is further rotated from this state, the operation shaft 41 contacts the projection 38 b of the lock cam 38 to rotate the lock cam 38, and then the projection 38
Get over a. Therefore, the lock cam 38 is returned to the initial position by the lock cam spring 39, and the bent portion 41a of the operation shaft 41 is engaged with the rear end face of the lock cam 38, and is kept in the unlocked state (FIG. 15).
(C)).

In this state, when the sheet body 3 is moved in the direction of the reversing guide portion 11, the guide piece 21 comes into contact with the first cam 31 and the lock cam 38, and both of them are brought into contact with each other as shown in FIG.
Can be rotated clockwise like. Therefore, the bell crank 37 is rotated clockwise through the link rod 36, and the cam plate 45 is pulled down via the link 46 against the spring 49. Thus, the cam plate 45
Is moved downward, the left and right operation arms 47 are rotated, the left and right connection pins 15 are retracted, and the connection between the connection guide 13 of the seat body 3 and the cradle 1 is released.

Therefore, the seat body 3 can be completely moved to the position of the reversing guide portion 11. Thus, when the seat body 3 is turned 180 ° after the seat body 3 is moved to the reversing guide portion 11 in this manner, the lock pin 22 engages with the lock hole 17 and fixes the seat body 3 in the rearward use state. can do.

On the other hand, at this time, the operating shaft 41 is
As shown in (d), since it is in contact with the first cam 31 which is lying down, it does not return to the initial position.

Conversely, when changing from the rearward use state to the forward use state, the reclining lever 2
4, the lock pin 22 is disengaged from the lock hole 17, and the seat body 3 is rotated to the forward use state, and then the seat body 3 is moved in the direction of the reclining guide 10. As a result, the tip of the guide piece 21 comes into contact with the second cam 32 by this movement, and the second cam 32 swings counterclockwise, and the first cam 31
Is returned to the initial position. Therefore, the cam plate 45 is lifted upward, and the upper portions of the left and right operation arms 47 are rotated in a direction in which the upper and lower operation arms 47 are separated from each other, and the left and right connection pins 15 are projected and engaged with the reclining slits 13a of the connection guide 13. At this time, the spring 49 functions to surely pull the cam plate 45 upward. Therefore, the seat body 3 can be fixed to the front use state by appropriately moving the seat body 3 forward and engaging the lock pin 22 with the lock hole 16.

As described above, when the seat body 3 is in the forward use state, the connection pin 15 is inserted and engaged with the reclining slit 13a of the connection guide 13 of the seat body 3, so that the connection guide 13 and the connection pin 15 The seat body 3 and the cradle 1 are connected, and the seat body 3 is supported and held by the cradle 1 also by the connection guide 13, the rigidity of the portion is increased, and the back of the seat body 3 is moved forward by impact or the like. Is prevented from being deformed.

When the seat body 3 is changed from the front use state to the rear use state, the connection between the seat body 3 and the cradle 1 is automatically released by the movement of the seat body 3, and the rear use state is further reduced. When the state is changed from the state to the forward use state, the seat body 3 and the cradle 1 are automatically connected. Therefore, the complexity of changing the use state of the seat body 3 can be reduced.

By the way, as described above, the operation dial 40 is used.
Is interlocked with the reclining operation of the seat body 3, so that a sticker 50 for indicating that the front use is possible and that the front use is impossible is affixed to the lower part of the operation dial 40 in front of the cradle 1 as shown in FIG. Dial knob 40
a can indicate its position. Thus, by attaching such a sticker 50, it is possible to confirm that the reclining is at a normal position.

Further, the child seat as described above is
Secure with a seat belt on the passenger car seat.
In this case, as shown in FIG. 17, the rear part of the cradle 1 is attached to the seat of the passenger car by the waist belt 51 of the seat belt, and the upright part 12 of the cradle 1 is mounted by the shoulder belt 52.
To the back of the car.

Therefore, in order to fix the shoulder belt 52 to the upright portion 12 of the receiving table 1, lock-off devices 53 are provided on the front surface of the upright portion 12 on the left and right sides thereof. Each of the lock-off devices 53 is disposed so as to be inclined so that the upper end thereof approaches the central axis of the upright portion 12 corresponding to the inclination of the shoulder belt 52, and as shown in FIG. A concave portion 53b for guiding the shoulder belt 52 is provided on the front side of the substrate portion 53a. However, when the upright portion 12 is fixed by the shoulder belt 52, the lock-off device 53 becomes substantially orthogonal to the shoulder belt 52 extending in an oblique direction, and the shoulder belt 52 is guided by the recess 53b. The shoulder belt 52 can be easily tightened without shifting.

The outer periphery of the lid mounting boss 53c of the substrate 53a is formed eccentrically.
Is swung in the opening direction, the end of the lid 53d comes into contact with the outer periphery of the boss 53c so that the lid 53d does not close during the belt attaching operation. Thus, when the cover is opened and the shoulder belt 52 is mounted on the lock-off device 53, the cover 53d does not need to be manually supported during that time, and the belt can be easily attached. In the above embodiment, the boss is eccentric, but a small protrusion may be formed on the outer periphery of the boss to achieve the same effect.

On the other hand, when an infant is placed on a child seat, an infant belt is attached to the infant in order to prevent the infant from slipping. At this time, the length of the shoulder belt portion is adjusted according to the size of the infant. Need to adjust. Therefore, as shown in FIG. 19, an adjustment belt 56 is connected to the infant shoulder belt 55 on the back side of the seat body 3, and the adjustment belt 56 is provided at a front position in the seat of the seat body 3, The adjustment belt 56 is inserted through a quick adjuster 57 that prevents the adjustment belt 56 from moving in the loosening direction, and the leading end thereof is attached to an automatic winding device 58 provided in the seat body 3.

Thus, when the infant is seated in the child seat and the length of the shoulder belt 55 for the infant is adjusted by pulling the adjustment belt 56 when adjusting the shoulder belt 55 for the infant,
The adjustment belt 56 slackened at the front part of the seat body 3 is automatically wound up by the automatic winding device 58, so that the excess adjustment belt does not remain slack at the front part of the seat body 3 or the like. The child's feet may get caught on the loosened adjustment belt, or the loosened adjustment belt may become entangled with other things,
It is possible to prevent an unexpected accident such as being caught between other parts when the seat body 3 rotates.

[0039]

As described above, according to the present invention, since the automatic winding device is provided inside the sheet main body and the tip of the adjustment belt 56 is attached to the automatic winding device, the excess adjustment by the length adjustment is performed. It is possible to prevent the infant from catching his / her feet on the belt or the excess adjustment belt getting tangled when the seat body rotates.

[Brief description of the drawings]

FIG. 1 is a perspective view of a child seat according to the present invention.

FIG. 2 is an exploded perspective view of the child seat of the present invention.

FIG. 3 is an explanatory view of a reclining operation of the child seat of the present invention.

FIG. 4 is an explanatory view of a child seat according to the present invention in a rearward use state.

FIG. 5 is a perspective view of a receiving table.

FIG. 6 is a plan view of a receiving table.

FIG. 7 is a perspective view of a seat body.

FIG. 8 is a view showing a child seat of the present invention in a state where a seat portion is removed.

FIG. 9 is a view corresponding to FIG. 8 when the seat body is inverted.

FIG. 10 is a view showing a state in which a reinforcing plate for preventing deformation of the seat body is attached.

FIG. 11 is a perspective view of a deformation preventing reinforcing plate.

FIG. 12 is a vertical side view of the seat body.

FIG. 13 is a perspective view of the operation mechanism of the first and second cams.

FIG. 14 is a diagram showing a connection pin operation mechanism.

FIGS. 15A to 15D are explanatory views of the operation of a first cam and a second cam.

FIG. 16 is a view of a sheet attached to a front surface of a cradle.

FIG. 17 is an explanatory diagram of a wearing state of the receiving stand with a seat belt.

FIG. 18 is a view showing a state where a lid of the lock-off device is opened.

FIG. 19 is a diagram showing a schematic configuration of an infant seat belt.

FIG. 20 is a perspective view showing a slack portion of an adjustment belt 56 of a conventional child seat infant belt.

FIG. 21 is a side view of a child belt portion of a conventional child seat.

FIG. 22 is an explanatory view of the operation of the adjustment belt in the conventional infant belt of the child seat.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Receiving stand 2 Reclining base 3 Seat body 4 Base part 5 Guide groove 6 Leg part 8 Reclining pin 9 Rotating reclining rail 10 Reclining guide part 11 Reverse guide part 12 Standing part 13 Connection guide 13a Reclining slit 15 Connection pin 16, 17 Lock hole Reference Signs List 20 disc 22 lock pin 24 reclining lever 27 rotation rail 28 rotation guide 29 guide 30 deformation preventing reinforcing plate 31 first cam 32 second cam 36 link rod 37 bell crank 38 lock cam 40 operation dial 41 operation shaft 43 dial spring 45 cam Plate 46 Link 47 Operating arm 48 Cam arm 50 Sticker 51 Waist belt 52 Shoulder belt 53 Lock-off device 55 Infant shoulder belt 56 Adjustment belt 57 Quick adjust Tar 58 automatic winding device

 ──────────────────────────────────────────────────続 き Continued on the front page F-term (reference) 3B087 CE07 CE09

Claims (1)

[Claims] 1. A child seat mounted on a seat or the like of a passenger car, comprising: a child belt mounted on a seat body;
An adjustment belt connected to the shoulder belt of the infant belt is inserted therethrough, and a quick adjuster for adjusting the length of the shoulder belt of the infant belt and a tip end of an adjustment belt provided on the seat body and extending from the quick adjuster are attached. A child seat, comprising: an automatic winding device.