JP4131106B2 - child seat - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a child seat that is installed in a seat of an automobile and on which a child sits, and particularly relates to a child seat having a function of changing an installation angle when installed in the seat.
[0002]
[Prior art]
The child seat includes a type in which the reclining angle cannot be adjusted and a type in which the reclining angle can be adjusted. As a child seat with a reclining mechanism, Japanese Patent Laid-Open No. 8-276771 discloses a chair seat in which a chair-like body having a seat portion on which a child sits and a back portion on which a child's back strikes is supported on a base portion. It is described that the reclining angle can be adjusted by making the bottom surface of the body convex, making the top surface of the base portion concave, and sliding the chair-like body along the top surface of the base portion.
[0003]
[Problems to be solved by the invention]
Normally, when an infant whose head is not sitting is placed on the child seat, the child seat is installed facing backward. On the other hand, when an infant with a neck sitting after 9 months is placed on a child seat, the child seat is installed facing forward. In the conventional child seat, a reclining mechanism is essential in order to be able to place both infants and infants. That is, when a child seat without a reclining mechanism is installed facing backwards and an infant is placed thereon, the backrest portion (backrest portion) of the child seat is at an angle close to upright (vertical), so that the infant is placed. It becomes inappropriate. In addition, when a child seat without a reclining mechanism is installed facing forward and an infant is placed thereon, the backrest portion is excessively inclined rearward.
[0004]
Therefore, a user who has purchased an infant child seat without a reclining mechanism needs to purchase a child seat for an infant when the child grows up to 9 months after birth, which is a heavy financial burden.
[0005]
If the child seat is equipped with a reclining mechanism that adjusts the reclining angle of the chair-like body, when the child seat is installed facing backwards to be mounted on an infant, the reclining should be deepened (lay down in a direction close to the horizontal), while the child seat should be directed forward By setting the reclining shallow (standing upright) when installed for infant mounting, a chair-shaped body installation angle suitable for both infants and infants can be obtained.
[0006]
However, since the conventional child seat with a reclining mechanism requires time and effort for adjusting the reclining angle, it takes time and effort to change the front and rear direction with respect to the seat of the automobile and to install it again.
[0007]
The present invention can be easily installed on the seat of an automobile so that the angle of the chair-like body is appropriate even when the child seat is installed backwards for infant loading or when it is installed forward for infant loading. An object is to provide a child seat that can be used. An object of the present invention is to provide a child seat that can switch the angle of a chair-like body by a mechanism different from a normal reclining mechanism.
[0008]
[Means for Solving the Problems]
The child seat of the present invention is a child seat installed on a seat of an automobile, comprising: a child seat main body; and a bottom block for adjusting the installation angle of the child seat rotatably attached to the bottom of the child seat main body. One end of the block is pivotally attached to the child seat body so as to be able to take a first state that overlaps the first half of the bottom surface of the child seat body and a second state that overlaps the second half of the bottom portion. The bottom block is a child seat having a thickness on the other end side larger than that on the one end side, and the other end of the bottom block is more pivotally attached to the child seat body. A first hook portion is provided at a position retracted to the side, and the bottom surface of the child seat body is A second hook portion is provided in the vicinity of the intersection between the front half side and the rear half side, and a tension coil spring is installed between the first hook portion and the second hook portion in an accumulating state. The bottom block is attached in a direction to be pulled into the bottom surface of the child seat body by the tension coil spring even when the bottom block has been rotated to either the front half side or the rear half side of the bottom surface of the child seat body. It is characterized by being energized .
[0009]
In the present invention, when the child seat is installed forward for an infant, the bottom block is set to the second state where the child seat is positioned on the second half side of the child seat, and the chair-like body is placed with the backrest standing. Further, when the child seat is installed rearward for an infant, the bottom block is set in the first state where the child seat is positioned on the front half side of the child seat, and the chair-like body is in a state of lying on the backrest. Thereby, even if it is a child seat without a conventional reclining mechanism, the installation angle of the chair-like body of the child seat is appropriate regardless of whether the infant seat is installed forward or the infant is installed backward.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. 1 is a rear perspective view of a child seat according to an embodiment of the present invention, FIG. 2 is a side view when the child seat is installed forward on a seat, and FIG. 3 is a bottom view of the child seat of FIG. A perspective view looking up from the rear, FIG. 4 is a side view when the child seat is installed rearward, FIG. 5 is a perspective view from the front of the child seat of FIG. 4, and FIG. 6 is a child seat of FIG. 7 is a perspective view of the bottom block, FIG. 8 is a perspective view of the bottom block, FIG. 8 is a sectional view taken along line VII-VII in FIG. 7, and FIG. 9 is a structure for mounting the bottom block to the base It is explanatory drawing which shows. In the following description, the front-rear direction of the child seat is the front-rear direction for the child sitting on the child seat, and the left-right direction is the left-right direction for the child sitting on the child seat.
[0011]
The child seat 1 is installed in a seat 2 (FIG. 2) of an automobile, and is fixed to the seat 2 by a seat belt 4 of the seat 2, and as shown in the figure, a chair-like body 6 and this chair-like body. A child seat body 9 comprising a base 8 that supports 6, a bottom block 30 attached to the bottom of the base 8, and a child webbing 10 (10 R, 10) that restrains the body of a child (infant) seated on the chair 6. 10L) and the fastening webbing 11.
[0012]
In the present embodiment, the child seat 1 is such that the chair-like body 6 can recline back and forth with respect to the base 8.
[0013]
In the present embodiment, the seat belt 4 crosses the waist belt 4a routed to the left and right of the seat 2 along the upper surface of the seat portion of the seat 2 and the front surface of the seat back of the seat 2 in an obliquely vertical direction. And a shoulder belt 4b drawn around. The seat belt 4 is inserted into a tongue 4c, and the tongue 4c can be latched to a buckle 4d attached to the lower portion of the seat 2. A retractor (not shown) is connected to the front end of the shoulder belt 4b, and tension is applied to the seat belt 4 in the winding direction by the retractor.
[0014]
As clearly shown in FIG. 5, the chair-like body 6 has a seat portion 12 on which a child sits and a backrest portion 14 that stands up from the rear portion of the seat portion 12.
[0015]
As clearly shown in FIG. 1, a seat belt insertion port 16 is provided so as to penetrate the chair-like body 6 from side to side. The seat belt insertion port 16 extends from the seat portion 12 to the backrest portion 14.
[0016]
Ribs 18 made of ridges extend along the left and right edges of the chair-like body 6 and continuously from the lower surface to the back surface of the chair-like body 6. Each rib 18 extends in the front-rear direction on the lower surface of the seat portion 12, and extends in the up-down direction on the back surface of the backrest portion 14. As shown in FIG. 4, slits 18 a and 18 b extending in the extending direction of the rib 18 are provided in a portion of each rib 18 located near the lower portion of the seat portion 12. In this embodiment, a slit 18a is provided on the front side of the seat 12, and a slit 18b is provided on the rear side.
[0017]
As shown in FIG. 4, guide pins 18p engaged with the slits 18a and 18b are provided in the base 8. The guide pin 18p relatively moves in the slits 18a and 18b with the reclining of the chair-like body 6. The guide pin 18p holds the chair-like body 6 so as not to separate from the base 8, and regulates the reclining range of the chair-like body 6.
[0018]
The child webbing 10R is hung on the right half of the child, and the child webbing 10L is hung on the left half of the child. As clearly shown in FIG. 5, each child webbing 10 </ b> R, 10 </ b> L has a front end fixed to the left and right edges of the seat 12, and a rear end from the webbing insertion hole 20 of the backrest 14. It is pulled out backwards. The lower end of the strap 21 is fixed to the center of the front edge of the seat 12 of the chair-like body 6, and the buckle 22 is attached to the upper end of the strap 21. The right webbing 10R and the left webbing 10L are inserted into the tongues 23L and 23R, respectively, and the tongues 23L and 23R are inserted into the buckle 22 and locked.
[0019]
As shown in FIG. 1, each child webbing 10R, 10L extends downward along the back surface of the backrest 14 and is connected to the tightening webbing 11 via a connection fitting 11j. As shown in FIG. 2, the tightening webbing 11 is drawn from the back surface of the backrest portion 14 to the lower surface of the seat portion 12, and is pulled out to the front of the front end surface of the seat portion 12 through a web adjuster (not shown). ing.
[0020]
The said base 8 hold | maintains the chair-shaped body 6 so that reclining is possible. The base 8 holds the left and right ribs 18 and 18 of the chair-like body 6 so as to be slidable in the reclining direction.
[0021]
On the left and right side surfaces of the base 8, there are provided waist belt guide members 24 for hooking the waist belt 4a of the seat belt 4 passed through the seat belt insertion opening 16, respectively.
[0022]
As clearly shown in FIGS. 3 and 6 to 9, a bottom block 30 is attached to the bottom surface of the base 8 so as to be rotatable in the front-rear direction. The bottom block 30 has a triangular prism shape whose thickness gradually increases from one end side, that is, the rotation base end side 31 to the other end side, that is, the rotation rear end side 39.
[0023]
Convex portions 32 are provided at the left and right ends of the base end side 31, and a hinge pin 34 is inserted into a hinge hole 33 (see FIGS. 7 and 9) provided in the convex portion 32, and the bottom block 30 is based on the hinge pin 34. The base 8 is rotatably attached. The hinge hole 33 and the hinge pin 34 extend in the left-right direction, and are arranged near the middle of the bottom surface of the base 8 in the front-rear direction. Therefore, the bottom block 30 has a second state that overlaps the rear side 8R of the base bottom as shown in FIGS. 1 to 3 and a first state that overlaps the front side 8F of the base bottom as shown in FIGS. It can be rotated by about 180 ° so that it can take a posture.
[0024]
In this embodiment, at the bottom surface of the base 8, the front side 8F and the rear side 8R cross each other. Specifically, when the front side 8F is brought into contact with the horizontal plane, the rear side 8R has a shape that becomes higher toward the rear. The hinge pin 34 is disposed near the intersection of the front side 8F and the rear side 8R.
[0025]
In this embodiment, a recess 50 is provided on the bottom surface of the base 8. The ceiling surface of the recess 50 is also obliquely crossed so that the front side 50F and the rear side 50R intersect in the vicinity of the hinge pin 34.
[0026]
As shown in FIG. 9, a recess 51 is provided near the intersection of the front side 50F and the rear side 50R of the recess 50, and a hook portion 52 of the spring 60 is provided in the recess 51. The bottom block 30 is provided with a hook portion 35 at a position retracted to the rear end side 39 from the hinge pin 34, and a tension coil spring 60 is installed between these hook portions 35 and 52 in an accumulating state. ing. By this spring 60, the bottom block 30 is always urged in the direction in which the bottom block 30 is pulled into the recess 50 regardless of whether the bottom block 30 has been rotated to either the front side 50F or the rear side 50R.
[0027]
In this embodiment, as shown in FIGS. 7 and 8, click mechanisms 40 for slightly locking the bottom block 30 drawn into the recess 50 are provided on both side surfaces of the bottom block 30. The click mechanism 40 includes a cylindrical case 41 fixedly disposed in the bottom block 30, a base end side slidably accommodated in the cylindrical case 41, and a hemispherical distal end side outside the side surface of the bottom block 30. And a spring 43 that urges the protrusion 42 in the protruding direction.
[0028]
As shown in FIGS. 3 and 6, hemispherical concave portions 49 into which the protrusions 42 are respectively provided are provided on the side surfaces of the front side 50F and the rear side 50R of the recess 50. When the bottom block 30 is rotated to the front side or the rear side and overlapped with the front side 50F or the rear side 50R of the recess 50, the protrusion 42 enters the concave portion 49, and the bottom block 30 is lightly locked. Is done.
[0029]
As shown in FIGS. 2 to 6, in this embodiment, the crossing angle between the front side 8F and the rear side 8R on the rear side of the base 8 is the same between the front side 50R and the rear side 50F of the recess 50. It is approximately equal to the crossing angle. The difference between the crossing angle and 180 ° is substantially equal to the included angle on the base end side 31 of the bottom block 30. Further, the depth of the recess 50 is substantially equal to the thickness of the bottom block 30 near the hinge hole 33. Therefore, when the bottom block 30 is rotated to the front side, the rear side 8R of the bottom surface of the base 8 and the bottom surface of the bottom block 30 on the front side are substantially flush (substantially the same plane). Further, when the bottom block 30 is rotated to the rear side, the front side 8F on the bottom surface of the base 8 and the bottom surface of the bottom block 30 are substantially flush with each other.
[0030]
The included angle of the bottom block 30 is preferably about 20 to 50 °.
[0031]
In order to install the child seat 1 configured in this manner in the seat 2 forward, first, the rear side of the child seat 1 so that the bottom block 30 overlaps the rear side 8R of the bottom surface of the base 8 as shown in FIGS. Rotate to the side. Next, as shown in FIG. 2, the child seat 1 is placed forward on the seat surface of the seat 2, the seat belt 4 is inserted through the insertion opening 16 of the child seat body 6, and the tongue 4c of the seat belt 4 is then attached. Latch to the buckle 4d. The waist belt 4 a of the seat belt 4 is inserted into the waist belt guide member 24.
[0032]
In the child seat 1 installed as shown in FIGS. 1 to 3, the chair-like body 6 is in a state in which the backrest portion 14 is relatively upright, and is suitable for placing an infant sitting on the neck. It is.
[0033]
In order to install the child seat 1 rearward on the seat 2, first, as shown in FIGS. 4 to 6, the bottom block 30 is rotated to the front side of the child seat 1 so as to overlap the front side 8 F of the bottom surface of the base 8. Let me. Next, as shown in FIG. 4, the child seat 1 is placed rearward on the seat surface of the seat 2, and the seat belt 4 is inserted into the insertion port 16 of the child seat body 6, and then the tongue 4c of the seat belt 4 is Latch to the buckle 4d. The waist belt 4 a of the seat belt 4 is inserted into the waist belt guide member 24.
[0034]
When the child seat 1 that has been installed forward on the seat of the automobile is re-installed rearward, the child seat 1 can be installed so as to have the same seat inclination by rotating only the bottom block 30. Therefore, the child seat 1 can be installed without adjusting the reclining angle of the chair-like body 6 to the base 8 when the child seat 1 is converted in the front-rear direction.
[0035]
As shown in FIG. 4, when the child seat 1 is installed rearward with the bottom block 30 positioned on the front side 8F of the bottom surface of the base 8, the backrest portion 14 of the child seat 1 tilts backward considerably deeply. Since it is in a so-called sleeping state, the infant is held on the child seat 1 in a posture close to a supine position.
[0036]
In the child seat 1 of the embodiment above SL, a lower surface and a rear surface of the backrest 14 of the seat 12 of the child seat body 6 a child webbing 10 drawn around the upper surface of the seat portion 12 and Seto Since the insertion port 16 of the seat belt 4 is interposed between the front surface of the portion 14 and the child webbing 10 slides on the lower surface of the seat portion 12 and the rear surface of the backrest portion 14, the vibration thereof However, it is difficult to be transmitted to the upper surface of the seat portion 12 and the front surface of the backrest portion 14, and the child seated on the child seat body 2 is very comfortable to sit on.
[0037]
Further, in the child seat 1, when the seat belt 4 is routed, the seat belt 4 is inserted into the insertion opening 16 penetrating the seat portion 12 and the backrest portion 14 of the child seat body 2 to the left and right. The child webbing 10 routed along the lower surface of the seat 12 and the rear surface of the backrest 14 does not cross directly. Accordingly, when either the seat belt 4 or the child webbing 10 is routed, they do not interfere with each other, and these routing operations can be performed very easily.
[0038]
In this embodiment, the waist belt 4 a of the seat belt 4 is passed through the waist belt guide member 24, and the waist belt guide member 24 is provided on the base 8, so that the child seat body 6 is restrained by the seat belt 4. You can recline freely without receiving.
[0039]
【The invention's effect】
As described above, the child seat of the present invention can be used to adjust the angle of the backrest by simply rotating the bottom block when the child seat is installed forward for an infant in a car seat and when the child seat is installed rearward for an infant. It can be appropriate for infants. In the present invention, the operation of the reclining mechanism is not required when changing the direction of the child seat, and the direction changing operation can be facilitated. The present invention can also be applied to a child seat without a reclining mechanism.
[Brief description of the drawings]
FIG. 1 is a rear perspective view of a child seat according to an embodiment of the present invention.
FIG. 2 is a side view when the child seat is installed on the seat facing forward.
FIG. 3 is a perspective view of the child seat of FIG. 1 as viewed from the rear.
FIG. 4 is a side view when the child seat is installed on the seat in a rearward direction.
FIG. 5 is a perspective view from the front of the child seat of FIG. 4;
6 is a perspective view of the child seat of FIG. 4 as viewed from the front.
FIG. 7 is a perspective view of a bottom block.
8 is a sectional view taken along line VII-VII in FIG.
FIG. 9 is an explanatory view showing a structure for attaching a bottom block to a base.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Child seat 2 Seat 4 Seat belt 4a Waist belt 6 Chair-shaped body 8 Base 9 Child seat main body 10 Child webbing 12 Seat part 14 Seat backing part 16 Seat belt insertion port 18 Rib 30 Bottom block 31 Base end side 33 Hinge hole 34 Hinge pin 39 Rear end side 40 Click mechanism 50 Recess 60 Spring

Claims (6)

In child seats installed in car seats,
A child seat body, and a bottom block for adjusting the installation angle of the child seat pivotally attached to the bottom of the child seat body,
The bottom block is pivotally attached to the child seat body so that one end of the bottom block can be in a first state overlapping the front half of the bottom surface of the child seat body and a second state overlapping the rear half of the bottom portion. And
The bottom block is a child seat in which the thickness on the other end side is larger than the one end side ,
A first hook portion is provided at a position retracted to the other end side from a portion of the bottom block that is rotatably attached to the child seat body,
A second hook portion is provided in the vicinity of the intersection between the front half side and the rear half side of the bottom surface of the child seat body,
A tension coil spring is installed between the first hook part and the second hook part in an accumulated state,
The bottom block is urged in a direction to be pulled into the bottom surface of the child seat body by the tension coil spring even when the bottom block has been rotated to either the front half side or the rear half side of the bottom surface of the child seat body. child seat, characterized in that that. In claim 1, a recess is provided in the bottom surface of the child seat body,
The recess includes a front side that receives an upper portion of the bottom block when the bottom block is in the first state, and an upper portion of the bottom block when the bottom block is in the second state. Consisting of rear side and accepting
On the side of the bottom block,
A case fixedly disposed in the bottom block;
A protrusion in which the base end side is slidably accommodated in the case and the tip end side protrudes outward from the side surface;
A spring for urging the protrusion in the protruding direction;
A click mechanism consisting of
A child seat, characterized in that a protrusion recess for allowing the protrusion to enter is provided on a side surface of the recess. 3. The child seat according to claim 1, wherein a bottom surface of the child seat is convex downward in the vicinity of the middle in the front-rear direction, and the one end side of the bottom block is attached near the middle. 4. The child seat according to claim 3 , wherein the bottom block has a substantially triangular prism shape whose thickness gradually increases from the one end side toward the other end side. 5. The child seat body according to claim 4 , wherein when the bottom block is in the first state, the child seat body is substantially flush from the rear half of the bottom surface of the child seat body to the bottom surface of the bottom block, and when the bottom block is in the second state. A child seat characterized by being substantially flush from the front half side of the bottom surface to the bottom surface of the bottom block. In any one of claims 1 to 5, wherein the seat body is made includes a chair-like body having a seat and a backrest, and a base that supports the the chair-shaped body reclining angle adjustable The child seat is characterized in that the bottom block is attached to the bottom of the base.

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