JP2002293175A - Child seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To mount a child seat on a vehicular seat simply and reliably and improve versatility. SOLUTION: With attachments 27 on both sides pulled out back from a base body 24 and fixed by first restraint devices, a base 12 is pressed to engage engaging portions 28 with anchors 8 of the vehicular seat 2. When a seat body 11 is next mounted on the base body 24, the attachments 27 are allowed to move only in a storage direction by second restraint means. The seat body 11 mounted on the base 12 is then pressed toward a seat back 4. The seat body 11 pressed against the seat back 4 is now held in a planar close contact state to finish the mounting of the child seat 10 on the vehicular seat 2. The attachments 27 comprise a plurality of stoppers, and at least one stopper is engaged in a frame square hole cut in the base body 24, so that the position of the seat body 11 can be held reliably.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a child seat which is attached to, for example, an automobile seat and seats a child.

[0002]

2. Description of the Related Art Conventionally, a child seat provided with a seat body adapted to a child's body shape and attached to a car seat to protect a seated child has been used. And
Conventionally, this child seat is attached to the seat using a seat belt, and the attaching work is complicated,
The installation required skill.

In this regard, in recent years, a so-called ISO-FIX system has been developed and used as a method for easily and reliably fixing a child seat to a seat. For example, as shown in JP-A-8-207630, a support member provided with connectors at four places,
A seat body attached to the support member is provided, and these connectors are inserted into and engaged with bars of four locking units provided in advance on the upper and lower sides of the seat, respectively, so that special skill is required. Without this, the child seat can be securely attached and detached and fixed.

[0004] Further, in this Isofix type child seat, two connectors are engaged with and attached to two locking units on the seat surface of the seat, thereby simplifying the mounting work and improving versatility. Configurations are considered. That is, as shown in FIG. 29, the child seat 1 is attached to a vehicle seat 2 which is a car seat (car seat), and a child sits on the child seat 1 in use. The vehicle seat 2 includes a substantially horizontal seating surface 3 and a seatback 4 connected to a rear portion of the seating surface 3 and inclined upward toward the rear. Further, a pair of mounting receiving portions 6 on both sides are provided at a hinge portion at a lower portion of the seat back 4 so as to be located slightly above the upper surface of the seat surface 3. Each of the mounting receiving portions 6 includes a concave portion 7 that can be opened forward at least as needed, and an anchor (anchor for vehicle mounting) 8 that is a bar disposed inside the concave portion 7. ing. Each of the anchors 8 is called an isobar or an isofix bar, and is formed of a steel material in a cylindrical shape or the like, is disposed with both sides in the longitudinal direction, and is connected to a frame (not shown) embedded in the seat back 4. ing.

Here, in the configuration in which the connectors 1a provided at two places of the child seat 1 are engaged with the anchors 8, the two anchors 8 are arranged horizontally and coaxially, so that the The child seat 1 may rattle in the direction of the arrow θ or the like.

In this regard, as disclosed in Japanese Patent Application Laid-Open No. 2000-280800, a base body provided with two arms and a sheet body mounted above the base body are provided, and each arm is locked. A configuration has been considered in which a connector to be engaged with the unit is provided, and a rotatable floating stopper is provided on the base body. In the configuration described in this publication, when attaching the child seat, first, the connector of each arm is inserted into and engaged with the locking unit, and the floating stopper is moved from the base body disposed on the seat surface of the seat to the vehicle. Rotate backward and press against the seat back to attach the base to the seat. Next, the rear end of the bottom plate of the sheet body is engaged with the base, the front side of the sheet body is pushed down to engage with the hook provided on the base body, and the sheet body is attached to the base body. Also, when removing the child seat,
First, operate the operation piece, retreat the hook, remove the seat body upward, operate the lever, rotate the floating stopper forward of the vehicle, pull the operation piece forward, and pull the arm hook. It is designed to be removed from the bar.

As described above, Japanese Patent Application Laid-Open No. 2000-280800
In the configuration described in the publication, there is a structural space between the seat back of the vehicle and the rear surface of the child seat, and the rotation of the child seat is restricted by the floating stopper abutting on the seat back. There is a problem that the operation of attaching the child seat without rattling is not simple depending on the shape and softness of the seat back only with the floating stopper that comes into contact with the child seat.

[0008]

As in the prior art, there is a demand for a structure that can be securely attached with a simpler operation and is highly versatile in an isofix type child seat.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a child seat that can be easily and reliably attached and can be improved in versatility.

[0010]

According to a first aspect of the present invention, a child seat is fixed by engaging with a base body, a seat body which can be seated mounted on the base body, and a mounting receiving portion provided on a mounted portion. And an attachment movably provided in the pull-out direction and the storage direction with respect to the base body, and allowing the attachment to move in the storage direction with respect to the base body and in the pull-out direction. Regulating device that prohibits the movement of the, the regulating device, a plurality of engagement receiving portions provided on one of the attachment side and the base body side, and the other of the attachment side and the base body side And a plurality of engaging portions that are respectively movably engageable with the engagement receiving portion along the storage direction, wherein the engaging portion is fixed by being engaged with the mounting receiving portion. In a state where the attachment from state moves in the housing direction, the engaging portion are those in which at least one engaging portion is disposed so as to engage in any of the engagement receiving portion.

In this configuration, the engaging portion provided on the attachment is engaged with and fixed to the mounting receiving portion, and the sheet body and the base body are pushed into the mounting portion. In this state, movement in the storage direction is allowed by the regulating device, and the attachment relatively moves in the direction in which the attachment is stored in the base body. Furthermore, since the movement of the attachment in the pull-out direction is prohibited by the restricting device in a state where the sheet body and the base body are pushed into the attached portion side, the seat is brought into contact with the attached portion side. The body is fixed to the attached portion, and the child seat is easily attached to the attached portion. Due to the change in the dimensions for storing the attachment,
The child seat can be easily attached to attachment portions having various shapes and dimensions, and versatility is improved. In addition, the child body is stably supported by the attached portion by the sheet body abutting on the attached portion side, and versatility is improved. Furthermore, in this state, since at least one engaging portion is engaged with any of the engagement receiving portions, the position of the sheet body is reliably protected.

According to a second aspect of the present invention, in the child seat according to the first aspect, the arrangement pitch of the engagement receiving portions is a, the arrangement pitch of the engagement portions is b, and the engagement state of the engagement portions in the engagement receiving portion. C, the total number of engagement portions is x, and the number of engagement portions included in the arrangement pitch a of the engagement receiving portions is y, 0 for the engagement portions closest to each other.
And when a positive integer is n, the relationship of b = ((x + 1) / x) a + na and c> = a / x is satisfied when y = 1, and when y> 1, b = (x + 1) / x (A / (y-1)) ((x-1) / x) + na and c> = a / x.

With this configuration, a configuration in which at least one engagement portion engages with any one of the engagement receiving portions is easily realized.

A child seat according to a third aspect of the present invention is the child seat according to the first or second aspect, wherein the mounted portion comprises a seat having a seat surface and a seat back provided to stand upward from a rear portion of the seat surface. The mounting receiving portion is provided in the vicinity of a connection portion between the seat surface and the seat back.

In this configuration, the bottom surface of the base body abuts the seat surface in a planar manner, and the back surface of the seat body abuts the planar surface of the seat back, so that the child seat is stably supported.

According to a fourth aspect of the present invention, there is provided the child seat according to any one of the first to third aspects, further comprising a seat body having a seat body capable of being seated, a base body to which the seat body is detachably attached, and an attached portion. And a mounting device provided with an engaging portion that is engaged with and fixed to the mounting receiving portion provided on the base body. The mounting device is provided with the engaging portion and pulled out from the base body. An attachment movably provided in the direction and the storage direction, and a state in which, in a state where the sheet body is detached from the base body, the attachment is allowed to move in the pull-out direction and is prohibited from moving in the storage direction. (1) In a state in which the regulating device and the engaging portion are engaged with and fixed to the mounting receiving portion,
A second restricting device that permits movement of the attachment in the storage direction and prohibits movement of the attachment in the pull-out direction.

In this configuration, the attachment is pulled out in a state where the sheet is removed from the base body, and the engaging portion provided on the attachment is engaged with and fixed to the attachment receiving portion. Next, the sheet body is attached to the base body, and the sheet body and the base body are pushed into the portion to be attached. In this process, the movement in the storage direction is allowed by the first and second restriction devices, and the attachment relatively moves in the storage direction in which the attachment is stored in the base body. Furthermore, since the movement of the attachment in the pull-out direction is prohibited by the second restricting device in a state where the sheet body and the base body are pushed into the attached portion side, the sheet body is in contact with the attached portion side. The seat body is fixed to the mounting portion, and the child seat is easily mounted on the mounting portion. Due to the change in the size for storing the attachment, the child seat can be easily attached to the attachment portions having various shapes and dimensions, and the versatility is improved. Furthermore, the child body is stably supported by the attached portion by the sheet body abutting on the attached portion side, and versatility is improved.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a child seat according to the present invention will be described below with reference to the drawings.

The vehicle seat 2 as a seat as a part to be mounted is the same as that shown in FIG. 29, and an ISO-FIX type anchor 8 as a mounting receiving part.
, And the same reference numerals are given and the description is omitted.

First, the configuration of the child seat and the outline of the mounting operation on the vehicle seat 2 will be described with reference to FIG.
In the following, the directions in the front-rear direction, the up-down direction, and the both-side directions are as follows.
A description will be given of a state in which a child seat is attached to a forward facing vehicle seat 2 based on a direction in a straight traveling state of an automobile.

In FIG. 1, reference numeral 10 denotes a child seat.
This child seat 10 is compatible with ISOFIX (ISO-FI
The X) system is adopted, and includes a seat body 11 on which a child including an infant who is an occupant sits, and a base body 12 to which the seat body 11 is detachably attached.

The seat body 11 includes a seat body 14 having a substantially L-shape in side view, formed in a bucket seat shape or the like according to the child's body shape. Also, this seat body 14
Includes a core made of, for example, a hard synthetic resin or a metal, and a soft cushion arranged at least on the seating side of the core. And this seat body 14
Has a substantially horizontal bottom portion 17 and a back portion 18 that is a seat body backrest that stands upright from the rear end of the bottom portion 17 and is inclined rearward and upward.

Further, a front mounting bar 19 and a rear mounting bar 20 as locking metal fittings are provided on a bottom surface portion 17 of the seat body 14 in a front and rear pair. That is, these mounting bars 19 and 20 are, for example, steel materials bent in a substantially U-shape, are disposed at predetermined intervals in front and rear, and
Is firmly connected to the core material. The portions extending substantially horizontally upward in both sides of the mounting bars 19 and 20 are a first sheet engagement receiving portion and a second sheet engagement receiving portion that are supported portions.

Further, as shown in FIG.
On the bottom surface portion 17 of the 14, a sheet body side protrusion 22 of a predetermined shape constituting a second switching device is protruded downward at predetermined positions on both sides of the front mounting bar 19.

Although not shown, the seat body 14 includes
It is equipped with a shoulder harness, also called a strap that supports the upper body of a child, and a block that supports the abdomen.

On the other hand, the base body 12 has a base body 24, and has a mounting device 25 that holds the sheet body 11 on the base body 24 and is attached to the anchor 8.
The base body 24 has a substantially rectangular box shape in a plane, and a pair of attachments 27 on both sides constituting the mounting device 25 are slidable on the base body 24 at the rear side of the base body 24 so that they can be stored and pulled out. Provided. At the leading end portion, that is, the rear end portion of the attachment 27 in the pulling-out direction, an engaging portion 28 which is engaged with the anchor 8, that is, is engaged with the anchor 8 in a lockable manner. Further, on the upper surface of the base body 24, a lock portion 31 as a first sheet engaging portion and a rear stopper 32 as a second sheet engaging portion are provided. Further, when the attachment 27 is housed in the base body 24, the base body 12 is actuated by a first regulating device, which will be described later, so that the base body 12 can be moved only in the direction in which the attachment 27 is pulled out to the rear side. The base body
In the state where the attachment 27 is attached, the second regulating device is operated so that the attachment 27 is switched so as to be movable only in the direction in which the attachment 27 is stored in the front side. In addition, the base body 12 is attached to the sheet body 11 with the attachment 27 engaged with the anchor 8.
The third restricting device, which regulates the mounting of the base member 12 to the base body 12, is switched to allow the mounting.

The order of mounting the thus constructed child seat 10 to the vehicle seat 2 is as shown in FIG.
As shown in (b), first, the attachments 27 on both sides housed in the base body 24 are pulled out to the rear as much as possible. Then, the attachment 27 is temporarily fixed by the first regulating device so as not to be stored in the base body 24. Next, as shown in FIGS. 1C and 1D, the base unit 12 is pressed together with the base unit 12 to fix the engaging portion 28 to the anchor 8. Then, as shown in FIG. 1 (e), the rear mounting bar 20 of the sheet body 11 is hooked on the rear stopper 32 of the base body 12, and then the rear mounting bar 20 is used as a fulcrum.
The front side of 11 is pushed down, and the front mounting bar 19 is engaged with the lock portion 31 of the base body 12 to fix the sheet body 11 and the base body 12. Here, if the sheet body 11 is correctly attached to the base body 12, the temporary fixing of the attachment 27 by the first regulating device is released, and the attachment 27 can be stored in the base body 24.
Finally, as shown in FIG. 1 (f), when the seat body 11 attached to the base body 12 is pressed rearward, that is, in the direction of the seat back 4 of the vehicle seat 2, the attachment is movable only in the storage direction. 27 is housed in the base body 24, the sheet body 11 is pressed against the seat back 4 and held in a state of being closely attached in a planar manner, and the mounting of the child seat 10 is completed. That is, as shown in FIG. 1 (f), the child seat 10 is brought into close contact with the vehicle seat 2.

Next, the configuration of the base body 12 will be described in detail.

As shown in FIGS. 1 to 5, the base body 24 of the base body 12 includes a frame 35 made of metal or the like, and a cover 36 made of resin or the like which covers the frame 35.

The frame 35 includes a fixedly provided frame main body 41. The frame main body 41 includes a pair of side frames 42, 42 each having a substantially C-shaped cross section as a fixed frame. A front bridge 43 as a front frame and a rear bridge 44 as a rear frame connecting the side frames 42, 42 are provided. In this embodiment, both ends of the rear bridge 44 are fixed to the side frames 42, 42 via bridge brackets 45, 45. The front bridge 43 and the bridge brackets 45, 45 are fixed to the side frames 42, 42 by fasteners 47, such as bolts and nuts for mounting the bridge, and the rear bridge 44 is used for mounting the rear bridge. It is fixed to the bridge brackets 45, 45 by a fixing tool 48 composed of bolts and nuts. Further, a lock housing 51 constituting the lock portion 31 is attached to the upper center of the front bridge 43. Further, a rear stopper fitting 52 constituting the rear stopper 32 is attached to the rear bridge 44. And lock housing
51 is fixed to the front bridge 43 by a fixing tool 54 composed of bolts and nuts for mounting the lock housing, and the rear stopper fitting 52 is fixed to the rear bridge 44 by a fixing tool 48 for mounting the rear bridge. ing.

An attachment stopper mounting base 55 is fixed to the lower surface of the front bridge 43, and an attachment bridge stopper 57 is turned on the attachment stopper mounting base 55 with a shaft 56 having a support shaft on both sides as a support shaft. It is movably mounted. And, at the bottom of the attachment stopper mounting base 55,
A base-side storage stopper 55a that comes into contact with the attachment bridge 64 in a state where the attachment bridge 64 described later is stored, and an elastic body mounting portion 55b is provided in front of the base-side storage stopper 55a.

The attachment bridge stopper 57 constitutes a first regulating device which permits the attachment 27 to move in the pulling-out direction and inhibits or locks the movement in the storing direction. At the rear end portion, an attachment bridge stopper portion 57a serving as a wall portion is provided, and toward the front side opposite to the attachment bridge stopper portion 57a with respect to the shaft 56, facing upward as an operating portion constituting the second switching device. A pair of protrusions 57b on both sides are formed.
Further, in the vicinity of the protrusion 57b, the elastic body mounting portion 5 is provided.
7c is provided. A coil spring S1 for stopper, which is an elastic body and is a coil spring, is mounted between each elastic body mounting portion 57c of the attachment bridge stopper 57 and each elastic body mounting portion 55b of the attachment stopper mounting base 55. The attachment bridge stopper 57 is urged in a direction in which the projection 57b projects upward, that is, in a direction in which the attachment bridge stopper 57a projects downward. When the protrusion 57b is located on the upper side, the protrusion 57b is a protrusion opening 43a which is an insertion portion formed in the front bridge 43.
Through the projection opening 43a.

The attachment 27 is formed of a pair of attachment frames 6 each having a substantially U-shaped cross section and serving as a main skeleton.
1 and 61, and in these attachment frames 61,
Components of a second mounting device described later are incorporated.
Further, these attachment frames 61, 61 are slidably fitted in side frames 42, 42 having a substantially C-shaped cross section. Also, in each attachment frame 61,
Bridge mounting portions 62 projecting from the side frames 42, 42 toward the center of the base body 12 are provided so as to protrude therefrom.
Attachment bridges 64 constituting the first regulating device fixed to the attachment frame 64, the attachment frames 61, 61 on both sides.
Are linked and linked. Further, the bridge mounting portion 62 is fixed to the attachment bridge 64 by a fixing tool 65 composed of bolts and nuts for mounting the attachment bridge.

Further, the frame 35 is provided between the pair of attachment frames 61, 61 on both sides,
67 are provided. And this drawer grip 67,
A grip portion 68 as an operation portion is provided at a rear end portion, and a drawing grip hook portion 69 is provided at a front end portion. The drawing grip hook portion 69 is a contact portion of a front end of the attachment bridge 64. It comes into contact with the wall 64a so that it can come and go. Further, the attachment bridge 64 is provided with a pair of elastic body mounting portions 64b on both sides. The elastic body mounting portion 64b of the attachment bridge 64 and the frame body 41
The attachment retracting spring S2, which is an elastic body and a coil spring, is attached between the elastic body mounting portion (not shown) provided in the above-described embodiment, and urges the attachment 27 forward, that is, in the storage direction.

Further, the lock portion 31 is provided in the state shown in FIGS.
As shown in FIG. 7, a guide 71 is provided in the lock housing 51 so as to open upward, and a lock body 74 facing the guide 71 and rotatably supported by a lock shaft 72 is provided. The lock body 74 includes a bar receiving portion 74a, which is a bar contact portion that is recessed facing the guide portion 71, and a cam receiving portion 74b located below the bar receiving portion 74a. The lock body 74 is provided with an elastic body mounting shaft 75. Further, a cam 77 is arranged inside the lock housing 51 so as to face the lock body 74. And
The cam 77 is rotatably supported by a cam shaft 78, and is further provided with an elastic body mounting shaft 79. The cam 77 has a cam receiving portion 74 of the lock body 74.
A cam portion 77a that selectively engages with a plurality of positions of b is formed, and a long hole 77c that is a connecting portion for a connecting shaft is formed at the distal end side of the arm portion 77b extending downward. Have been. A coil spring, which is a tension spring, which is an elastic body (not shown), is mounted between the elastic body mounting shaft 75 of the lock body 74 and the elastic body mounting shaft 79 of the cam 77, and the coil springs urge each other. The bar receiving portion 74a is urged to face upward.

Further, below the lock housing 51,
A seat lock release lever 81, which is an operation means, is disposed so as to be able to move forward and backward. The seat lock release lever 81 is provided with an operating portion 81a at a front end thereof, and a connecting shaft 82 having axial directions in both sides is provided at a tip end of a shaft portion 81b extending rearward from the operating portion 81a. Is provided. The connecting shaft 82 has a long hole 77c of the cam 77.
The cam 77 and the seat lock release lever 81 are connected to each other.

On the other hand, the rear stopper 32 is formed with a hook 52a which opens to the rear side of the rear stopper fitting 52.

The attachment bridge 64 is provided with a pair of shaft portions 84 each having a longitudinal direction extending in both side directions. The shaft portions 84 allow the pair of lever members 85 serving as release levers of the vehicle seat mounting lock. Is rotatably provided. The lever body 85 constitutes a third regulating device. The lever body 85 includes an operating portion 85a extending upward and inclined in two directions at different angles from each other,
A link hole 85b, which is a link portion formed on one side, is provided.

Further, in each attachment frame 61 of the attachment 27, a lock guide 88 interlocked with the lever body 85 is arranged. And each lock guide 88
Is a third regulating device, and each lock guide 88
As shown in FIGS. 16 to 24, long holes 88a and 88b, which are regulating portions, are provided along the longitudinal direction.
The movement range is restricted by pins 89 and 90, which are lock guide restricting shafts inserted into 88a and 88b, and a connecting shaft 91 disposed near the front end is connected to a lever body.
It is inserted into the 85 link holes 85b. Further, each lock guide 88 is provided with a biasing means mounting portion 88c,
Opposite to the urging means mounting portion 88c, a spring stopper 92, which is a urging means mounting portion, is fixedly provided on each attachment frame 61 by a mounting shaft 92a.
A coil spring S3, which is a spring serving as an urging means, is mounted between the urging means mounting portion 88c and the spring stopper 92.
Each lock guide 88 is urged rearward with respect to 1.
In this state, according to the rotation of the lever body 85, the lock guide
The 88 is smoothly driven back and forth.

A receiving portion 61a having an opening at the rear is formed at the end of each attachment frame 61 in the pulling-out direction, and a hook 94 constituting the engaging portion 28 is arranged. The hook 94 is rotatably supported by the attachment frame 61 about the hook shaft 95 as a rotation axis, and extends forward with an anchor receiving portion 94a which is an anchor pressing portion facing the receiving portion 61a. And a hook rotation restricting portion 94b. The hook rotation restricting portion 94b comes into contact with a lock bar 96 provided integrally on a curved pressing wall 88d at the rear end of the lock guide 88, so that the rotation is restricted. .

Further, each lock guide 88 is provided with a plurality of stopper guide portions 101, each of which is a slope for pressing down a stopper, facing downward, and in the present embodiment, a pair of stopper guide portions is provided in front and back. That is, each stopper guide portion 101 has a protrusion allowable position 101a provided at a predetermined height position, and a protrusion provided at a position lower than the protrusion allowable position 101a and relatively lower than the protrusion allowable position 101a. A prohibition position 101b and a downwardly inclined portion 101c for connecting the protruding allowance position 101a and the prohibition position 101b are provided.

On the other hand, a plurality of, in this embodiment, two, stopper bases 102 are provided integrally with each attachment frame 61, which is located below each stopper guide 101. A stopper 105 is disposed between the stopper guide 101 and the stopper base 102. That is, the attachment frames 61 on both sides have a plurality of vertically moving back and forth independently of each other.
In the present embodiment, two stoppers 105 are arranged. The stopper 105 has a stopper as an engaging portion that constitutes a second regulating device that moves upward from the upper end to allow the attachment 27 to move in the storage direction and prohibits or locks the movement in the pull-out direction. Part 105a
, That is, the attachment frame
The stoppers 105a are arranged on the 61 at predetermined intervals. On the other hand, on the lower side of the stopper 105, a spring step 105b wide in the front-rear direction for receiving the urging means is formed, and a stopper shaft 106 extending in both sides is penetrated. And these spring steps 105a
A coil spring S0, which is a spring serving as an urging means, is mounted between the stopper shaft 106 and the stopper base 102, and the stopper 105 is moved upward, that is, the stopper portion.
105a urges in a direction to protrude upward. Further, each stopper 105 is provided with a regulating step portion 105c located below the stopper portion 105a. Also, lock guide 88
A stopper plate 108 fixed to the attachment frame 61 by a pin 90 is disposed above the stopper plate 105. A stopper portion 105a of each stopper 105 projects above an opening, which is a hole formed in the stopper plate 108. Also,
Each stopper shaft 106 is attached to each attachment frame 6
It is movably guided in the vertical direction by a long hole 109 which is a guide portion provided in 1. The stopper 105 is guided by the opening of the stopper plate 108 and the stopper shaft 106. Even when a force is applied to the stopper 105a in the shearing direction, i.e., the retracting direction of the attachment frame 61, the stopper 105 is moved. Is held without tilting.

Further, on the upper surface of each side frame 42, a frame square hole 110 which is an opening (engaging hole) into which a stopper portion 105a of a stopper 105 can be inserted as an engaging portion constituting a second regulating device. Are arranged at predetermined intervals, and are arranged at four places in the present embodiment. And each frame square hole 110,
While the width dimension in both side directions is almost equal to the stopper portion 105a,
The longitudinal dimension in the front-rear direction is set to be larger than the stopper portion 105a, and the stopper portion 105a inserted into or engaged with the frame square hole 110 is movable in the front-rear direction by a predetermined size in the engaged state. Has become. Further, the frame square hole 110 has a rear end that is a substantially vertical locking portion 110a, and a front end that is a guide portion 110b that is an inclined surface that is cut and raised.

On the other hand, the cover 36 covering the frame 35 is
As shown in FIG. 3 and the like, the upper cover 120 and the lower cover 121 formed of resin or the like are combined to form a box. On the upper surface of the cover 36, a lock storage part 124 that covers the lock housing 51 except for the vicinity of the guide part 71, and a pair of rear stopper storage parts that cover each rear stopper fitting 52 except for the vicinity of the hook 52a.
125 are protruding. Also, on the upper surface of the cover 36,
Two rows of release lever moving cover openings 127 are provided, from which the operation portion 85a of each lever body 85 can protrude upward. Further, on both sides of the lock portion housing portion 124, a cover opening 128 for the bridge stopper protrusion is provided so as to face the protrusion 57b of the attachment bridge stopper 57. Even when the projections 57b are moved upward, they do not protrude upward from the bridge stopper projection cover openings 128.
To be opposed from below. Also, cover 36
As shown in FIG. 6 and the like, an operation opening 130 is provided at the front end of the front end of the seat opposing the operation portion 81a of the seat lock release lever 81. Further, at the rear end of the cover 36, as shown in FIG. 2 and the like, an attachment frame opening 131 through which each attachment frame 61 is inserted is provided.

Next, the operation of attaching the child seat 10 to the vehicle seat 2 will be described in detail.

First, the operation of attaching the base body 12 separated from the seat body 11 to the vehicle seat 2 will be described.

That is, from the state shown in FIG. 1A, FIG. 3, FIG. 5, FIG. 6, FIG.
Is pulled out to the rear side, the pull-out grip hook portion 69 of the pull-out grip 67 is attached to the terminal wall at the front end of the attachment bridge 64.
Attachment 2 on both sides as shown in FIG.
The attachment frame 61 protrudes rearward from the cover. In addition, pulling the pullout grip 67 to the rear,
As shown in FIG. 8, in a state where the attachment bridge stopper portion 57a of the attachment bridge stopper 57 sliding on the attachment bridge 64 is detached from the attachment bridge 64, the force of the coil spring S1 for stopper in the pulling direction is applied. The shaft is pivoted downward about the shaft 56, and the attachment bridge stopper
57a faces the front side of the terminal wall 64a. In this state, the movement of the attachment bridge 64 is retracted by the first restricting means, and the state shown in FIGS. 2, 4, 13 and 17 is obtained.

Also, the attachments 27 on both sides are
When pulling out, remove each stopper 10 in each attachment 27.
5 is pressed down together with the stopper shaft 106 by the protrusion prohibiting position 101b of the stopper guide portion 101 of each lock guide 88, and each frame square hole 11 of each side frame 42 is
It does not interfere with 0 and does not affect the movement of each attachment 27.

Next, the base body 12 is attached to the vehicle seat 2 in this state.

That is, the drawer grip 67 is moved to the front side to be housed in the base body 24, and then the base body 24 is gripped and the base body 12 is pressed against the vehicle seat 2, and the drawer grip 67 is inserted into the receiving portion 61 a at the tip end of the attachment 27. Press the anchor 8 in.
Then, as shown in FIG. 9 and FIG.
Is received by the anchor receiving portion 94a, the anchor receiving portion 94a is pushed, the hook 94 rotates, and the hook rotation restricting portion 94b escapes upward. Then, coil spring S3
The lock guide 88 moves rearward due to the urging force, the lock bar 96 integrated with the lock guide 88 slides below the hook rotation restricting portion 94b of the hook 94, and the rotation of the hook 94 is restricted. As a result, the hook 94 of the engaging portion 28 is locked to the anchor 8, and the base body 12 is mounted on the seat surface 3 of the vehicle seat 2 while the base body 24 is mounted on the vehicle seat 2.
Attached to.

Further, in a state where the hook 94 is locked to the anchor 8 and the lock guide 88 is moved backward, the lever body 85 connected to the lock guide 88 is rotated to enter the release lever moving cover opening 127. Is stored.

Next, the sheet body 11 is attached to the base body 12.

That is, the rear mounting bar 20 of the bottom portion 17 of the sheet body 11 is hooked on the hook 52a of the rear stopper 32 of the base body 12, and the rear mounting bar 20 is inserted to the innermost, that is, the front of the hook 52a. Around the sheet body
Rotate 11 Then, attach the front mounting bar 19 to the base body 12
The lock portion 31 is placed on the bar receiving portion 74a of the lock body 74 along the guide portion 71 of the lock housing 51 of the lock portion 31. Here, when the front side of the sheet body 11 is pressed down from above, the lock body 74 is pressed.
And the cam 77 rotates about the shafts 72 and 78, respectively, against the urging force of the coil springs mounted between the elastic body mounting shafts 75 and 79, as shown in FIGS. 10, 14 and 18. As shown, the cam portion 77a of the cam 77 engages with a predetermined position of the cam receiving portion 74b of the lock body 74, and the front mounting bar 19
Is locked, and the sheet body 11 and the base body 12 are fixed.

In this state, with the rotation of the cam 77, the arm 77b moves forward and the seat lock release lever 8
One operation section 81a projects forward from the operation opening 130.

Further, in this state, that is, the sheet body
In a state in which the seat body 11 is mounted in a correct position with respect to the base body 12, as shown in FIG. 128 inserted, front bridge 43
The projection 57b of the attachment bridge stopper 57, which protrudes upward from the projection opening 43a, is pushed downward.
Then, the attachment bridge stopper 57 is
Rotate around 56, and attach the attachment bridge stopper
57a retracts upward with respect to the terminal wall 64a at the front end of the attachment bridge 64, so that the attachment bridge 64 can move forward relative to the base body 24.

Finally, FIG. 11, FIG. 15, and FIG.
As shown in FIG. 22, the seat body 11 attached to the base body 12 is
Press in the direction. Then, the attachment bridge 64 which can be moved forward relative to the base body 24.
At the same time, the attachment 27, which can be moved only in the storage direction by the second regulating device described later, is stored in the base body 24, and the sheet body 11 is pressed against the seat back 4 and held in a state of being in close contact with the surface. Then, the mounting of the child seat 10 is completed. That is, as shown in FIG. 1 (f), the child seat 10 can be brought into a state in which the child seat 10 is closely attached to the vehicle seat 2.

When removing the child seat 10 from the vehicle seat 2, first, the seat lock release lever 81 at the front end of the base body 12 is pushed backward. Then, the cam 77 rotates and the cam portion 77a comes off the cam receiving portion 74b of the lock body 74, and the lock body 74 can rotate upward. In this state, the front side of the sheet body 11 is lifted, the front mounting bar 19 is removed from the lock portion 31, the sheet body 11 is moved rearward, the rear mounting bar 20 is removed from the rear stopper 32, and the base body 12 is removed. Remove the sheet body 11 from.

Next, when the levers 85 on both sides of the base body 12 are raised using the operation portion 85a, the lock guides are attached to the attachment frame 61 as shown in FIG.
88 moves forward, the hook 94 is released, and the anchor 8 is detached from the engaging portion 28. At the same time, in a state where the lock guide 88 has moved forward with respect to the attachment frame 61, the stopper shaft 106 of each stopper 105 in each attachment 27 is pushed down by the inclined portion 101c of the stopper guide portion 101 of each lock guide 88, Projection prohibition position 101b
And is held in a state of being pressed downward. In this state, the stopper portion 105a of each stopper 105 is
Does not project upward from above, does not interfere with each frame square hole 110 of each side frame 42, and each attachment 27 can be moved in both the storage direction and the pullout direction. Further, due to the urging force of the attachment retracting spring S2, each of the attachments 27 is retracted in the storage direction, and returns to the initial state shown in FIGS. 3, 5, 6, 12, 12, and the like.

Next, with reference mainly to FIGS. 16 to 24, a description will be given of a second restricting device that allows the attachment 27 to move only in the storage direction with respect to the side frame 42. FIG. When pressing the seat body 11 attached to the base body 12 rearward, that is, in the direction of the seat back 4 of the vehicle seat 2,
Attachments 27 on both sides can be moved while gradually locking only in the forward direction relative to the base body 24 in one direction, that is, the storage direction, and the attachment 27 once drawn into the base body 24 side can be released. A description will be given of the configuration of the stopper 105 and the like arranged in the attachment frame 61 that enables the operation of not moving in the opposite direction, that is, not moving backward relative to the base body 24, unless the operation is performed. 16 to 22, only the frame square holes 110 and the stopper 105 of the side frame 42 are illustrated for the sake of explanation.

That is, as shown in FIGS. 16 and 17, before attaching the sheet body 11 to the base body 12, in the process of pulling out the attachment 27 to the rear side, each stopper 105 in each attachment 27 Each lock guide 8
In a state in which the stopper guide portion 101 of FIG. 8 is pressed downward together with the stopper shaft 106 by the protrusion prohibition position 101b, the stopper guide portion 101 does not interfere with each frame square hole 110 of each side frame 42 and affects the movement of each attachment 27. Absent.

Then, as shown in FIG. 18, in a state where the anchor 8 is locked to the engaging portion 28 at the tip of each attachment 27, each lock guide 88 is moved to the attachment frame 61 by the urging force of the coil spring S3. Moving backward, each stopper 105 in each attachment 27 relatively moves to a position facing the protruding allowable position 101a via the inclined portion 101c of the stopper guide portion 101 of each lock guide 88,
As shown in FIG. 24, it becomes possible to move up and down. Therefore, when the positions of the stopper portions 105a of the stoppers 105 and the frame square holes 110 of the side frame 42 coincide with each other in a process in which the attachments 27 are stored in the base body 24, FIG.
23, and as shown in FIG.
05a protrudes upward from the frame square hole 110 and is engaged.

Here, the frame square hole 110 has a rear end portion serving as a substantially vertical locking portion 110a, and a front end portion serving as an inclined and raised guide portion 110b. Therefore, the stopper portion 105a of the stopper 105 is locked or locked in a state where the stopper portion 105a is in contact with the locking portion 110a, and is moved forward and is in contact with the guide portion 110b while sliding downward on the guide portion 110b. And can pass through the frame square hole 110. In this manner, the attachment 27 is locked stepwise by the positional relationship between the frame square hole 110 and the stopper portion 105a of the stopper 105, and can be moved only in the direction in which the stopper 105 can be retracted, that is, in the storage direction. It has become.

Since the lock guide 88 is urged in the hook direction by the coil spring S3,
When no external force is applied while the stopper 105a of the stopper 105 is inserted into any of the frame square holes 110, the stopper 105a abuts on the locking portion 110a of the frame square hole 110 and is stable. It will be in a state of having done.

Here, the attachment 27 is attached to the base body 24.
The stopper part 1 of each stopper 105
05a is pulled into the side frame 42 once when moving from one frame square hole 110 of each side frame 42 to the adjacent frame square hole 110, and the stopper portion 105a is in a state where it does not function as a lock. Become. On the other hand, depending on the model,
That is, depending on the shape, material, and the like of the vehicle seat 2,
With the seat body 11 pressed against the seat back 4 of the vehicle seat 2 and brought into close contact therewith, the stopper portions 1 of the individual stoppers 105
05a is not necessarily inserted into the frame square hole 110 and the locking portion 110a
It is not locked to.

Therefore, in the present invention, each of the stopper portions
For the stopper 105 provided with 105a, each side frame 42
For each of the frame square holes 110, a plurality of, in this embodiment, two are arranged, and regardless of the position of the attachment 27 with respect to the side frame 42, the stopper portion 105a of at least one stopper 105 It is set so that it is always inserted into the frame square hole 110.

That is, as shown in FIG. 18, when the attachment 27 is in the maximum withdrawn state and the stopper 105 is locked, the stopper 105 of the stopper 105 on the left side in the figure is locked.
a protrudes from the frame square hole 110 of the side frame 42, and abuts on the locking portion 110a and is locked. On the other hand, the stopper portion 105a of the stopper 105 on the right side in the figure is located inside the side frame 42 and is not inserted into the frame square hole 110.

FIG. 19 shows a state in which the attachment 27 is moved in the storage direction from FIG.
Although 105a is separated from the locking portion 110a, it is still inserted into the frame square hole 110, that is, is in a state where it can be locked securely.

Further, as shown in FIG. 20, when the attachment 27 is further moved in the storage direction, the left stopper 105a is close to the guide 110b, but is still inserted into the frame square hole 110. State, at the same time, the right stopper portion 105a is inserted into the frame square hole 110,
It is locked by contacting the locking portion 110a.

Then, as shown in FIG. 21, when the attachment 27 is further moved in the storage direction, the left stopper 105a slides against the guide 110b and is pushed down.
It will be in the side frame 42. At this time, the left stopper 105a does not perform the locking function, but the right stopper 105a is inserted into the frame square hole 110 and performs the locking function.

Further, as shown in FIG. 22, when the attachment 27 is further moved in the storage direction, the left stopper 105a is inserted into the adjacent frame square hole 110, and comes into contact with the locking portion 110a to engage. Has been stopped. On the other hand, the right stopper portion 105a is still inserted into the frame square hole 110 and has a locking function.

Thereafter, when the attachment 27 is further moved in the storage direction, the operation shown in FIGS. 19 to 22 is repeated, that is, by using the stopper portions 105a provided at two locations at predetermined intervals, any one of them is always performed. Of the stopper portion 105a can be locked.

Here, the frame square hole 11 of the side frame 42
Considering the positional relationship between the first frame square hole 110-1 and the stopper portion 105a of the right stopper 105, as shown in FIG. From the locked state in which the first frame square hole 11a contacts the first frame hole 11a, the first frame square hole 11
The movement stroke (distance) of the second frame square hole 110-2 adjacent to 0-1 until the second frame square hole 110-2 comes into contact with the locking portion 110a and is locked, that is, the arrangement pitch of the frame square hole 110 is a. A movement stroke in a state where the stopper portion 105a of the stopper 105 is inserted into each frame square hole 110, that is, a lockable state is c. Here, assuming that a movement stroke until the stopper portion 105a of the left stopper 105 is inserted into the adjacent third frame square hole 110-3 while being buried in the side frame 42 and locked is a / 2. By setting c> = a / 2, the stopper portion 105a of one of the stoppers 105 can be always inserted into any of the frame square holes 110 and can be locked.

In this embodiment, a = 30 mm, b = 45 mm, and c> = 15 mm, as shown in FIG.

As described above, according to the present embodiment, with respect to a child seat provided with a mechanism that can be attached to a vehicle seat by an iso-fix (ISO-FIX) method, the base body 12 has a slidable structure. An attachment 27 for attachment is provided. After the attachment 27 is attached to the vehicle, the attachment 27 is attached to the vehicle body 2 only in one direction in which the seat 11 is attached to the base 12 while the seat 11 is attached to the base 12. It is movable.

Therefore, after the seat 11 is mounted, the seat
The child seat 10 can be stably and reliably attached to the vehicle seat 2 of any vehicle type by pressing the rear portion 18 of the 11 against the seat back 4 and abutting and pressing in a planar manner. In other words, the same child seat 10 can be stably and reliably attached to many types of vehicles having different shapes and dimensions of the seat in daily use without rattling.

When the attachment 27 is stored in the base main body 24, the attachment 27 is temporarily fixed in a state where the first regulating device is operated and the attachment 27 is pulled out to the rear side. Can be easily and reliably attached to the anchor 8 with good workability.

Further, the attachment 27 is attached to the vehicle seat 2.
Since the attachment 27 is held in a non-slidable state until the sheet body 11 is attached to the base body 24 after being attached to the base body 24, the workability of attaching the sheet body 11 to the base body 24 can be improved.

Since the attachment 27 is constantly urged in the direction of being housed in the base body 24 by the attachment retracting spring S2, the seat body 11 is guided in the direction in which the seat body 11 comes into close contact with the seat back 4 of the vehicle seat 2. Thus, the workability of attaching the child seat 10 is improved. Further, with the base body 12 removed from the vehicle seat 2, the attachment 27 is housed in the base body 24, so that the storability when not in use can be improved.

Further, until the engaging portion 28 of the attachment 27 is attached to the anchor 8 of the vehicle seat 2, the lever 85
Is provided with a third restricting device that restricts the seat body 11 from being attached to the base body 24 so that the engaging portion 28 of the attachment 27 is accurately attached to the anchor 8 of the vehicle seat 2. Can be easily confirmed.

Further, since each of the above switching devices is linked to the attachment of the sheet member 11 or the attachment 27, the operation is not complicated, and the workability can be improved.

Further, in the second regulating device, the stopper portion 105a of the stopper 105 provided on the moving attachment 27 side protrudes into the frame square holes 110 arranged at a plurality of predetermined intervals in the side frame 42 which is a fixed frame, By successively engaging by pulling in or the like, it moves stepwise and engages.
At this time, in the present embodiment, a plurality of stoppers 105 each having a stopper portion 105a provided on the attachment 27 are provided, and at least one of the plurality of stopper portions 105a is always connected to any one of the frame angles during the retraction process of the attachment 27. Since it is inserted into the hole 110 to be hooked or locked, the position of the base body 12, ie, the seat body 11, can be reliably held, and the occupant protection performance can be reliably maintained.
That is, even in the event of a collision or the like, the child seat 10 pressed against the vehicle seat 2 is reliably prevented from moving forward, and the performance of protecting the occupant can be maintained.

As described above, in order for any of the stoppers to be always in a lockable state in any state, the arrangement pitch of the frame square holes 110 which are the engagement receiving portions is a, and The arrangement pitch of the stopper portions 105a of a certain stopper 105 is b, and the stopper portions 105
c is the movement stroke in the state in which a can be locked, x is the total number of stopper portions 105a, and the stopper portions 10 that are closest to each other.
As for 5a, when the number of stopper portions 105a included in the arrangement pitch a of the frame rectangular holes 110 is y, 0 and a positive integer is n, when y = 1, b = ((x + 1) / x) a + na and c> = a / x, and when y> 1, b = (a / (y-1)) ((x-1) / x) + na and c> = a / x It is only necessary to satisfy the relationship.

In the above embodiment, the frame square hole 110 of the side frame 42 and the stopper 10
The relationship with 5a includes four frame square holes 110 and two stopper portions 105a, and one of these stopper portions 105a is inserted into the frame square hole 110, or
Stopper portions 1 are inserted into the square holes 110 adjacent to each other.
Although the configuration is such that 05a is inserted, the positional relationship between the frame square holes 110 and the stoppers 105a and the number of the stoppers 105a, etc. are such that at least one stopper 105a is always Can be appropriately selected as long as the condition of being inserted into the frame square hole 110 is satisfied.

In contrast to the embodiment shown in FIG. 25 and the like, for example, as shown in FIG. 26A, a plurality of stopper portions 105a are arranged close to each other, and a plurality of The stopper portion 105a may be inserted, or one of the stopper portions 105a may be inserted into the frame square hole 110.

Further, as shown in FIG. 26B, for example, as shown in FIG. 26B, a plurality of stopper portions 105a are arranged apart from each other, and
The stopper portions 105a may be inserted into the frame 110, or one of them may be inserted into the frame square hole 110.

Further, for example, as shown in FIGS. 27 and 28, stoppers 105 each provided with a stopper 105a are provided.
May be provided as three.

That is, as shown in FIG.
Or third stoppers 105-1, 105-2, 105-3, and first to fourth frame square holes 110-1, 110-2, 110-3, 110
For the configuration with -4, the first locked
Of the first frame square hole 110-1 from the first frame square hole 110-1.
The stroke from the movement to the frame square hole 110-2 until locking is defined as a, and the movement stroke lockable in the first frame square hole 110-1 is defined as c. Here, the stroke in which the attachment 27 is moved in the storage direction and the third stopper 105-3 which is in the second locked state is locked in the fourth frame square hole 110-4 is a / 3, and the third locked state. The stroke until the second stopper 105-2 in the state is locked with respect to the third frame square hole 110-3 is 2a / 3. In this case, by setting c> = a / 3, the stopper portion 105a of at least one stopper 105 is always inserted into the frame square hole 110, that is, it can be securely locked.

The configuration shown in FIG. 27A is, specifically, a = 30 m as shown in FIG.
m, the pitch b between the stoppers 105 is set to 40 mm, and c is set to 10 mm.

Further, in a configuration using three or more stoppers 105, the respective stoppers 105 can be arranged unequally.

For example, as shown in FIG. 27 (c), two stoppers 105 located on the rear side are arranged close to each other, and these rear stoppers 105 are simultaneously
It can be arranged to be inserted into 10.

For example, as shown in FIG.
The two stoppers 105 located on the front side can be arranged close to each other, while the two stoppers 105 on the rear side can be simultaneously inserted into the frame square holes 110 that are not adjacent to each other.

Further, for example, as shown in FIG. 27E, three or more stoppers 105 are arranged close to each other, and a plurality of stoppers 105 are arranged to be inserted into the same frame square hole 110. You can also.

Further, for example, as shown in FIG.
It is also possible to arrange three or more stoppers 105 relatively close to each other so that the stoppers 105 arranged at both ends are inserted into the frame square holes 110 adjacent to each other.

The configuration shown in FIG. 28A is, specifically, as shown in FIG. 28B, a = 30 m
m and the pitch b between the stoppers 105 are set to 20 mm.

For example, as shown in FIG.
Of the three or more stoppers 105, two stoppers 105 located on the rear side are disposed relatively close to each other, and the stoppers 105 disposed at both ends are inserted into frame square holes 110 not adjacent to each other. Can also be placed.

On the other hand, for example, as shown in FIG.
Of the three or more stoppers 105, two stoppers 105 located on the front side are arranged relatively close to each other, and the stoppers 105 arranged at both ends are inserted into frame square holes 110 not adjacent to each other. It can also be placed.

Further, for example, as shown in FIG. 28 (e), three or more stoppers 105
The stoppers 105 arranged at both ends may be arranged so as to be inserted into the frame square holes 110 which are not adjacent to each other.

In the above embodiment, the configuration in which the base body and the sheet body are separated has been described. However, the present invention is not limited to this configuration. The present invention can also be applied.

In the above embodiment, the stopper 10
5 is locked in one direction of the frame square hole 110 and can be moved in the other direction. One end of the frame square hole 110 is a substantially vertical locking portion 110a, and the other end is inclined and cut up. The configuration is not limited to the guide portion 110b, but the shape of the stopper portion 105a of the stopper 105 may be changed, that is, the front end portion of the stopper portion 105a may be a sloped guide portion, or the stopper 105 may be rotated only in one direction, rearward. It can be configured to be movable.

Further, an engaging portion such as the stopper 105 may be provided on the frame side of the base body, and an engaging receiving portion such as the frame square hole 110 may be provided on the attachment side.

[0101]

According to the child seat according to the first aspect of the present invention, the engaging portion provided on the attachment is engaged with the mounting receiving portion and fixed, and the seat body and the base main body are pushed into the mounting portion side, whereby the seat is provided. With the body in contact with the part to be mounted, the seat body is fixed to the part to be mounted, and the child seat can be easily mounted to the part to be mounted. By changing the dimensions for storing the attachment, the child seat can be easily mounted on the mounting portion having various shapes and dimensions, and the versatility can be improved. The child body can be stably supported on the mounted portion by the sheet body abutting on the mounted portion side, and the versatility can be improved. Since at least one engaging portion is engaged with one of the engagement receiving portions in a state where the child seat is attached to the attached portion, the position of the sheet body can be reliably protected.

According to the child seat of the second aspect, in addition to the effect of the first aspect, a configuration in which at least one engagement portion is engaged with any one of the engagement receiving portions is easily realized.

According to the child seat of the third aspect, in addition to the effects of the first or second aspect, in addition to the effects of the first and second aspects, the bottom surface of the base body abuts the seat surface in a planar manner, and the back surface of the seat body abuts the seat back in a planar manner. In contact therewith, the child seat can be stably supported.

According to the child seat of the fourth aspect, in addition to the effects of any one of the first to third aspects, the attachment is pulled out in a state where the seat body is detached from the base body, and the engaging portion provided on the attachment is provided. The sheet body is attached to the base body, and then the sheet body and the base body are pushed into the mounting portion side, and the sheet body is brought into contact with the mounting portion side, and The body is fixed to the mounting portion, and the child seat can be easily mounted on the mounting portion. By changing the dimensions for storing the attachment, the child seat can be easily mounted on the mounting portion having various shapes and dimensions, and the versatility can be improved. The child body can be stably supported on the mounted portion by the sheet body abutting on the mounted portion side, and the versatility can be improved.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing steps of an attaching operation showing one embodiment of a child seat of the present invention.

FIG. 2 is a perspective view showing a state in which an attachment of a base body of the child seat is pulled out.

FIG. 3 is a perspective view showing a stored state of the attachment of the base body of the child seat according to the first embodiment.

FIG. 4 is a perspective view showing a state where a cover of the child seat of FIG. 2 is removed.

FIG. 5 is a perspective view showing a state where a cover of the child seat of FIG. 3 is removed.

FIG. 6 is a sectional view of the child seat, taken along the line II in FIG. 3;

FIG. 7 is a sectional view of the child seat, taken along the line II of FIG. 2;

FIG. 8 is a cross-sectional view taken at a position corresponding to II in FIG. 2, showing a state immediately before the base body of the child seat is attached to the seat.

FIG. 9 is a cross-sectional view taken along a position corresponding to II in FIG. 2, showing a state where the base body of the child seat is attached to the seat.

10 is a cross-sectional view taken along a line II in FIG. 2 showing a state where the seat body is attached to the base body of the child seat.

FIG. 11 is a cross-sectional view taken along the line II of FIG. 2 showing a state in which the attachment is stored by pressing the base body to which the child body seat body is attached to the seat.

FIG. 12 is a sectional view of the child seat, taken along the line II-II of FIG. 3;

FIG. 13 is a cross-sectional view at a position corresponding to II-II in FIG. 2, showing a state immediately before attaching the base body of the child seat to the seat.

FIG. 14 is a cross-sectional view taken along a line II-II in FIG. 2 showing a state where the base body of the child seat is attached to the seat and the seat body is attached to the base body.

FIG. 15 is a cross-sectional view at a position corresponding to II-II in FIG. 2 showing a state in which the base body with the seat body of the child seat attached thereto is pressed against the seat to accommodate the attachment.

FIG. 16 is a sectional view of the child seat, taken along the line III-III of FIG. 3;

FIG. 17 is a cross-sectional view at a position corresponding to III-III in FIG. 2 showing a state immediately before attaching the base body of the child seat to the seat.

FIG. 18 is a cross-sectional view taken along the line III-III in FIG. 2 showing a state in which the base of the child seat is attached to the seat and the stopper is locked in the frame square hole as the first step.

19 is a cross-sectional view at a position corresponding to III-III in FIG. 2 showing a state in which the base body with the child body seat attached thereto is pressed against the seat and the attachment is stored.

FIG. 20 is a sectional view taken along the line III-III in FIG. 2, showing a state where the attachment of the child seat is stored and the stopper is locked in the frame square hole as the second step.

FIG. 21 is a cross-sectional view taken along a line III-III in FIG. 2 showing a state in which the base body with the child seat body attached thereto is pressed against the seat to accommodate the attachment.

FIG. 22 is a cross-sectional view taken along a line III-III in FIG. 2 showing a state in which the attachment of the child seat is stored and the stopper is locked in the frame square hole as the third step.

FIG. 23 is a cross-sectional view at a position corresponding to IV-IV in FIG. 2, showing a state in which the stopper of the child seat is locked.

FIG. 24 is a cross-sectional view at a position corresponding to IV-IV in FIG. 2, showing a state where the stopper of the child seat is not locked.

FIG. 25 is an explanatory view of a position corresponding to III-III in FIG. 2 showing a relationship between a stopper of the child seat and a square hole of the frame.

FIG. 26 is a view showing another embodiment of the child seat according to the present invention, and shows a relationship between a stopper and a square hole of the frame in FIG. 2;
FIG. 3 is an explanatory view of a position corresponding to I-III.

FIG. 27 shows another embodiment of the child seat of the present invention, and shows the relationship between the stopper and the square hole of the frame in FIG. 2;
FIG. 3 is an explanatory view of a position corresponding to I-III.

FIG. 28 is a view showing another embodiment of the child seat according to the present invention. FIG.
FIG. 3 is an explanatory view of a position corresponding to I-III.

FIG. 29 is an explanatory diagram showing rattling when the child seat is attached to the vehicle seat without being in close contact with the vehicle seat.

[Description of Signs] 2 Vehicle seat as a seat as a mounting part 3 Seat surface 4 Seat back 8 Anchor as a mounting receiving part 10 Child seat 11 Seat body 12 Base body 14 Seat body 24 Base body 25 Mounting device 27 Attachment 28 Attachment part 57 Attachment bridge stopper 105a constituting the first regulating device 105a Stopper portion as the engaging portion constituting the second regulating device as the regulating device 110 As the engagement receiving portion constituting the second regulating device as the regulating device Frame square hole

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Yoshinobu Sano 218 Aoshima-cho, Fuji-shi, Shizuoka Japan Plast Co., Ltd. (72) Ryuta Yamaguchi 1-4-1-208 Kishibe Kita, Suita-shi, Osaka F-term (Reference) 3B087 CE06

Claims (4)

[Claims] 1. A base body, a seat body which can be seated attached to the base body, and an engaging portion which is fixed by being engaged with a mounting receiving portion provided on a portion to be mounted. An attachment provided movably in the withdrawal direction and the storage direction, and a regulating device that allows the attachment to move in the storage direction with respect to the base body and prohibits movement in the withdrawal direction, A plurality of engagement receiving portions provided on one of the attachment side and the base body side; and a plurality of engagement receiving portions provided on the other of the attachment side and the base body side. And a plurality of engaging portions movably engageable along a direction, wherein the attachment moves in the storage direction from a state in which the engaging portion is engaged with and fixed to a mounting receiving portion. State, the engaging portion, the child seat, characterized in that at least one engaging portion is disposed so as to engage in any of the engagement receiving portion. 2. The arrangement pitch of the engagement portions is a, the arrangement pitch of the engagement portions is b, the movement stroke of the engagement portions in the engagement state of the engagement portions is c, and the total number of the engagement portions is x. When the number of engagement portions included in the arrangement pitch a of the engagement receiving portions is y, 0, and a positive integer is n for the engagement portions closest to each other, when y = 1, b: = ((X + 1) / x) a + na and c> = a / x, and when y> 1, b = (a / (y-1)) ((x-1) / x) The child seat according to claim 1, wherein the following relationship is satisfied: + na and c> = a / x. 3. The mounted portion constitutes a seat having a seating surface and a seatback provided upright from a rear portion of the seating surface, and the mounting receiving portion is a connecting portion between the seating surface and the seatback. 3. The child seat according to claim 1, wherein the child seat is provided in the vicinity. 4. A seat body provided with a seat body capable of being seated, a base body to which the seat body is removably mounted, and an engaging portion which is fixed by being engaged with a mounting receiving portion provided on a mounted portion. A base body provided with a mounting device provided, wherein the mounting device is provided with the engaging portion, and an attachment movably provided in the pulling-out direction and the storing direction from the base body; In a state where the attachment is detached from the base body, a first regulating device that permits movement of the attachment in a pulling-out direction and prohibits movement of the attachment in a storage direction, wherein the engaging portion is engaged with a mounting receiving portion. 4. The device according to claim 1, further comprising a second restricting device that allows the attachment to move in the storage direction and prohibits the attachment from moving in the drawing direction in a fixed state. Rudoshito.