JPH1076874A - Seat for vehicle with child seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To recline a child seat part mounted on a seat integrally independently by providing a hold means which can release positions of a back part and a cushion part when the back part and the cushion part are at normal positions or reclining positions. SOLUTION: When a child seat main body 10 is transferred from a normal position to a reclining position, a grip part 40B of an adjustment lever 40 is gripped to turn it to an arrow C side so that the engagement of an engaging groove 44 and a mooring pin 38 is released. Next, when a cushion part 16 of the child seat main body 10 positioned at the normal position is pulled in an arrow E direction, a main link 26 is turned in an arrow A direction, and a hold link 34 is turned in an arrow B direction while the mooring pin 38 slides in a long hole to transfer it to the reclining position. Consequently, it is possible to recline a child seat part mounted integrally independently so that a child can take a comfortable posture.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat with a built-in type child seat.

[0002]

2. Description of the Related Art When a child is mounted on a vehicle, it is common to use a child seat to fit the child's physique. Among the conventional children's seats, there is a child's seat (built-in seat) integrally attached to a seat, for example, a bench seat of a vehicle.

In such a child seat, a part of a seat back portion of a seat which is a bench seat is turned down to a seat cushion side, and the turned down portion is used as a built-in seat surface. The child seated on the child seat is restrained by engaging the buckle of the built-in seat surface of the seat back with the clasp of the webbing attached to the backrest hidden behind the seat surface. .

[0004] When a reclining posture is taken with a child seat integrally mounted on a bench seat, the seat back of the bench seat and the backrest portion of the child seat are inseparable from each other. By tilting and adjusting the seat back together with the backrest portion of the child's seat, the child is allowed to take an easy posture to sleep.

[0005]

In the above-described bench seat provided with the conventional built-in type child seat, the reclining device is operated to tilt the child seat rearward in order to put the child to sleep or the like. If you try to set it in, the entire seat back will be defeated. Therefore, other occupants sitting on the bench seat provided with the child seat have to take a reclining posture.

[0006] Further, when a reclining device is not provided in a vehicle seat for a single passenger provided with a built-in type child seat, the child seat cannot take a reclining posture. Can not sleep in a comfortable position.

The present invention has been made in consideration of the above-described circumstances, and has as its object to independently enable reclining of a child seat integrally mounted on a vehicle seat so that a comfortable posture can be obtained.

[0008]

According to a first aspect of the present invention, a vehicle seat with a child seat has a seat cushion on which a seated person sits and a seat back as a backrest. A back portion pivotally supported at a position near the head in the back portion, a cushion portion pivotally supported at a position near the seat cushion in the back portion, and the back portion and the cushion portion are drawn toward the seat back side. Holding means for holding the positions of the back portion and the cushion portion in a releasable position where the normal position and the back portion and the cushion portion are pulled out in a direction away from the seat back, and , Is characterized by having.

With the above-described structure, the child seat portion integrally mounted on the vehicle seat is independently set to the reclining position, and the child seated on the child seat can take a comfortable position. Can be taken.

According to a second aspect of the present invention, there is provided a vehicle seat with a child seat, the main link having one end pivotally supported at a portion of the seat back of the vehicle seat opposite to the seat cushion; A back portion fixed to the link, a cushion portion pivotally supported by the other end of the main link, a holding link having one end pivotally supported on the seat cushion side of the seat back, and the other end of the main link And the interlocking means for interlocking the other end of the holding link with a sliding pair, and the relative operation between the main link and the holding link, when the back portion and the cushion portion are in a normal position or a reclining position. Holding means for stopping the releasable operation.

[0011] With the above structure, the relative movement between the main link and the holding link is stopped by the holding means, so that the back portion and the cushion portion can be set to the normal position or the reclining position to take a comfortable posture. To do.

According to a third aspect of the present invention, there is provided a vehicle seat with a child seat, wherein a main link having one end pivotally supported at a portion of the seat back of the vehicle seat opposite to the seat cushion; A back portion fixed to the link, a cushion portion pivotally supported by the other end of the main link, a holding link having one end pivotally supported on the seat cushion side of the seat back, and the other end of the main link A long hole drilled on one side, and a mooring pin projected on the other side and slidably inserted into the long hole, so as to interlock the part and the other end of the holding link with a sliding pair. When the part and the cushion part are in the normal position or the reclining position, the detachable operation is engaged with the mooring pin to adjust the normal position or the reclining position. And having a bar, a.

With the above-described structure, the back portion and the cushion portion can be moved to the normal position only by operating the adjusting lever to engage or disengage with the mooring pin.
Or it can be easily set in the reclining position.

According to a fourth aspect of the present invention, there is provided a vehicle seat with a child seat, the main link having one end pivotally supported at a portion of the seat back of the vehicle seat opposite to the seat cushion; A back portion fixed to the link, a cushion portion pivotally supported by the other end of the main link, a holding link having one end pivotally supported on the seat cushion side of the seat back, and the other end of the main link A long hole drilled on one side, and a mooring pin projected on the other side and slidably inserted into the long hole, so as to interlock the part and the other end of the holding link with a sliding pair. When the main part and the cushion part are in the normal position, they are simultaneously inserted into the through hole formed in the other end of the main link and the mooring hole formed in the holding link communicating therewith, and reclining. A locking member that is simultaneously inserted into an anchoring hole separately drilled in the holding link that communicates with the through-hole of the main link in the configuration, and a holding mechanism configured to be able to be detached from the anchoring hole by an operating member. It is characterized by the following.

[0015] With the above construction, the lock member of the holding mechanism is simultaneously inserted into or removed from the through hole of the main link and the selected mooring hole of the holding link by operating the operating member by operating the operating member. The back part and the cushion part can be easily set to the normal position or the reclining position.

According to a fifth aspect of the present invention, there is provided a vehicle seat with a child seat according to any one of the first to fourth aspects, wherein the back portion is folded back from an intermediate portion thereof and overlaps, so that the back portion has a size suitable for a child. It is characterized by constituting a seat surface.

With the above-described configuration, the back portion is folded back from the middle thereof to reduce the area of the seating surface, and the height of the seating surface is further increased so that the size of the backing portion can be appropriately adapted to a child. Can be set on the seat.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 7 show a first embodiment of a vehicle seat with a child seat according to the present invention. As shown in FIG. 1 and FIG. 2, the child seat body 10 according to the present embodiment is arranged at a central portion of a bench-shaped seat 12 on which a plurality of occupants are seated. The illustrated bench seat 12 is configured such that adult passengers can sit on both sides of the child seat body 10. When the bench seat 12 is a rear seat of the vehicle interior and a driver's seat and a passenger seat (not shown) are arranged in front of the seat, a space between the driver's seat and the passenger seat is provided. In addition, since the child's seat in the child's seat can take a comfortable position with the legs stretched out, when the child takes a reclining position, the child's legs hold on the back of the seat back of the front seat and do not feel cramped. Can be done.

The child seat body 10 includes a cushion portion 16 stored at the center of the seat back 14 of the bench seat 12, a back portion 18 attached to a part of the seat back 14, and a child seat belt. Device 20.

As shown in FIG. 3, the upper cushion 16A and the lower cushion 16B are connected by a hinge (not shown) so that the cushion 16 is folded in two. As shown by a solid line in FIG. 3, the cushion portion 16 is folded so that the upper cushion portion 16A is sandwiched between the seat cushion 22 of the bench seat 12 and the lower cushion portion 16B, and becomes a seating portion of a child seat. It is configured as follows. Note that a cushion material 17 is provided on the lower cushion portion 16B.

Further, as shown by a dashed line in FIG. 3, the upper cushion portion 16A and the lower cushion portion 16B are extended linearly and stored in such a manner as to be integrated with the seat back 14. 16 is the seat back 1
4, and functions as a backrest.

The back portion 18 of the child seat body 10 is configured as a backrest having a rectangular shape and provided with a cushion member 19.

The cushion 16 constructed as described above
And the back portion 18 is assembled to a reclining device as a holding means for releasably holding the cushion portion 16 and the back portion 18 using a link mechanism, and changes between a normal position and a reclining position. It is configured to be adjustable.

As shown in FIGS. 3, 4, 6, and 7, the seat back 1 is used to construct a reclining device.
4, a rectangular frame-shaped frame 24 is fixed. The frame body 24 is formed to have a size such that the back portion 18 can be accommodated in the space inside the frame. A main link 26 is provided at an inner corner end of each frame of the two vertical members 24A and 24B of the frame 24 opposite to the seat cushion 22.
Is axially supported by a shaft pin 28.

The main link 26 is connected to the back 1
8 are arranged integrally on both vertical sides. Therefore, the back portion 18 is rotatably supported around the shaft pin 28. The main link 26 has a long plate shape, and the other end is bent in a hook shape. Between the free ends of the bent other ends of these two main links 26, a cushion portion 1 is provided.
One end of 6 is pivotally supported by a shaft pin 30. FIG.
The main link 26, which hits the right side of the main link 26, is provided with an elongated hole 32 penetrating through a predetermined intermediate position near an end bent in a hook shape.

As shown in FIG. 4, one end of a holding link 34 is provided at the inner corner of each frame on the side of the seat cushion 22 in the vertical member 24A which is on the right side of the frame 24 with respect to FIG. , And are supported by a shaft pin 36. At the other end of the holding link 34, a mooring pin 38 is protruded from the side surface.

As shown in FIG. 5, the mooring pin 38 is a pin having a flange formed at a free end of a round shaft.
6, the main link 26 and the holding link 34 are interlocked with each other by sliding treatment, and the free end of the mooring pin 38 extends from the main link 26 by a predetermined length. Is formed.

When the main link 26 is turned in the direction of arrow A in FIG. 3, the mooring pin 38 inserted into the elongated hole 32 is turned on by the link mechanism including the main link 26 and the holding link 34 configured as described above. While sliding in the elongated hole 32, the holding link 34 is interlocked to rotate in the direction of arrow B in the figure. Since this interlocking operation is limited to the range in which the mooring pin 38 slides in the elongated hole 32, the main link 26 and the holding link 3
The link mechanism 4 is free to rotate in the direction of arrow A or arrow B or in the direction opposite thereto in the range from the state shown in FIG. 3 to the state shown in FIG.

In addition, near the bent end of the straight portion of the main link 26, an adjustment lever for setting a position for constituting holding means for setting the normal state and the reclining state of the child seat body 10 is provided. One end of the shaft 40 is mounted on a shaft pin 42.

The adjusting lever 40 is provided with a locking portion 40A extending linearly from an end portion pivotally mounted by the shaft pin 42, and a grip portion 40B bent and connected to the locking portion 40A. The locking portion 40A has a shaft pin 28 of the elongated hole 32 shown in FIG.
A U-shaped engaging groove 44 which can be disengaged from the normal position setting mooring pin 38 located at the side end, and the elongated hole 3 shown in FIG.
U-shaped engaging groove 46 which can be disengaged from the reclining position setting mooring pin 38 located at the end of the second shaft pin 36 side.
Are perforated to form a holding means.

At a required position between the engaging groove 44 and the engaging groove 46 in the locking portion 40A, one or a plurality of U-shaped engaging grooves which can be disengaged from the mooring pin 38 are provided. The reclining posture of the seat body 10 may be configured to be changeable and adjustable over a plurality of stages.

As shown in FIGS. 3 to 7, the grip portion 40B of the adjustment lever 40 is bent obliquely forward from the locking portion 40A to the occupant and is directed to the side of the occupant. It is formed so as to be bent obliquely and then to extend in a direction parallel to the locking portion 40A.

The adjustment lever 40 is used by the operator to
3B, the anchor pin 38 is disengaged from the engagement groove 44 or 46, and is turned in the direction of arrow D in FIG. By moving, the engagement groove 44 or 46 is configured to engage with the mooring pin 38.

The configuration of the holding link 34 having the mooring pin 38 inserted through the elongated hole 32 and the adjustment lever 40 is not only provided on one side of the child seat body 10 but also on both sides. It may be provided in the unit.

Next, a description will be given of a method of using and operation of the vehicle seat with the child seat according to the first embodiment configured as described above.

The child seat body 10 includes a cushion portion 16 and a seat back 14 as shown by a dashed line in FIG.
The upper cushion portion 16A is pulled out and folded in the direction of arrow C from the storage state stored in the lower cushion portion 1.
By rotating 6B in the direction of arrow C, the normal position shown in FIG. 3 is set to the use position of the normal position.

Next, when shifting the child seat body 10 from the normal position to the reclining position, the operator grips the grip portion 40B of the adjustment lever 40 and turns in the direction of arrow C to engage the engagement groove 44. , The engagement with the mooring pin 38 is released.

Next, the cushion portion 16 of the child seat body 10 located at the normal position is pulled in the direction of the arrow E in FIGS. Then, the main link 26 becomes the arrow A
The holding link 34 rotates in the direction of arrow B while the mooring pin 38 slides in the elongated hole 32, and shifts to the reclining position shown in FIGS. In this state, the adjustment lever 40 is turned in the direction of arrow D in FIG. 7 to engage the engagement groove 46 with the mooring pin 38, thereby setting the reclining set state shown in FIG. In this state, the child 48 sitting on the child seat can take a comfortable posture as shown.
When the child is seated on the child seat, the user must wear the seat belt attachment 20 as a matter of course.

Next, when returning the child seat body 10 from the reclining position to the normal position and then to the storage position, the operation can be performed in a reverse manner to the above.

Next, a second embodiment of the present invention will be described with reference to FIGS. The second embodiment exemplifies another configuration of the reclining device mounted on the child seat body 10. In the child seat main body 10, one end of each main link 26 is axially attached to each inner corner end on the upper side in FIG. 9 of the vertical members 24A and 24B on both sides of the frame 24. Each of the main links 26 is fixed to both lateral sides of the back portion 18, the other end is bent in a hook shape, and a round through hole 50 is formed. Further, a mooring pin 38 protrudes from a side surface of the main link 26 on the side of the frame 24 near the other end.

Further, at a predetermined position between the mooring pin 38 and the through hole 50 in the two main links 26, an end of the cushion portion 16 is supported by a shaft pin (not shown).

One end of a substantially triangular plate-shaped holding link 34 is axially attached to each of the inner corner ends on the lower side of the vertical members 24A and 24B of the frame 24 with respect to FIG. The other end of the holding link 34 is provided with a protruding piece 52 protruding in a rectangular protruding piece shape, and the protruding piece 52 is provided with the elongated hole 32. The mooring pin 38 of the main link 26 is slidably inserted into the elongated hole 32. And this slot 32
The main link 26 and the holding link 34 are interlocked so as to rotate by a required angle within a range in which the mooring pin 38 can move within the inside, and the cushion portion 16 and the back portion 18 are moved between the normal position and the reclining position. It is configured to be movable between.

The main link 26 is attached to the holding link 34.
Is in the normal position, the through hole 50
And a corresponding mooring hole 56 is formed so that the through-hole 50 communicates when the main link 26 is at the reclining position.

As shown in FIG. 9, a holding mechanism 58 for forming a holding means for holding the child seat body 10 in the normal position or the reclining position is arranged on the cushion portion 16. This holding mechanism 58
A long plate-shaped bracket 60A for holding a lock mechanism, and a long plate-shaped bracket 60 for holding an operation mechanism integrally extending in a right angle direction from the center of the lateral side of the bracket 60A.
B, and is mounted on a bracket 60 having an overall T shape.

The bracket portion 60A is bent so that both ends thereof are erected at right angles, and each of the erected portions 60C has a circular through hole formed therein. 62A is slidably inserted.
A flange 64 in which one of the rectangular plates is formed in a semicircular shape is fixed to an intermediate portion of each of the round bar portions 62A such that a straight base thereof is slidably guided on the plane of the bracket portion 60A. Further, a compression coil spring 66 is provided between each of the upright portions 60C and each of the flanges 64 so that each of the lock members 62 is biased toward the center of the bracket portion 60. A guide member 68 is provided at the two lock members 62 so as to oppose the ends located on the center side of the bracket portion 60. Each guide member 68 has a flat trapezoidal shape, and its slope 68A is
It is arranged so as to face the OB side and to face each other. Furthermore, these guide members 68 are stacked in the thickness direction, and are arranged such that the overlapped slopes 68A intersect. The side surface of each guide member 68 facing the rear of the inclined surface 68A is formed parallel to the side of the bracket 60A, and a guide plate portion 70 formed so that a rectangular piece stands upright from the center of the bracket 60A. Sliding on
The axial movement of the round bar portion 62A is guided.

The bracket 60B for holding the operating mechanism is
The free end is bent so as to rise at a right angle, and a rectangular through-hole is drilled in the upright portion 60D. The operating member 72 is guided in this through-hole so as not to rotate around an axis and is slidable. It has been inserted.

One end of the operating member 72 extending from the upright portion 60D is formed in a T-shaped handle 72A, and the other end of the operating member 72 has an operating head 72B. Is provided. The operating head 72B has a right-angled prism member formed with a forked distal end, and a rounded corner thereof is configured to be slidable on the inclined surface 68A of the lock member 62.

A rectangular plate-like flange plate 74 is provided at the base end of the operation head 72B, and a compression coil spring 76 is provided on a shaft between the flange plate 74 and the upright portion 60D. . By the urging force of the spring 76, the operation member 72
The operation head 72B is a slope 68A of the guide member 68.
Is pressed against.

Therefore, the operating head 72B normally moves each lock member 62 along the inclined surface 68A in the direction of arrow G against the urging force of the spring 66 by the urging force of the spring 76. Have been. Also, the handle 72
When A is pulled in the direction opposite to arrow F, the operation head 72B
Each locking member 62 is connected to the spring 6 while the slope 68A is in sliding contact with the spring 6.
The round bar portion 62A is moved by the urging force of No. 6 in a direction opposite to the direction of the arrow G so that the length of the free end of the round bar portion 62A protruding from the rising portion 60C is reduced.

The holding mechanism 58 configured as described above
Each round bar portion 62 is housed inside the cushion portion 16.
The free ends of A are allowed to protrude into the mooring holes 54 or 56 through the through holes 50 of the main link 26, respectively, and the handle portion 72A is exposed outward from the rectangular recess 78 of the cushion portion 16. Are located.

Next, a description will be given of a method of using the child seat according to the second embodiment configured as described above, and an operation thereof. When the child seat body 10 is to be adjusted to shift between the normal position and the reclining position, first, the handle portion 72A is moved to the position shown in FIG.
And hold in the direction of arrow H. Then, the operation member 72
Is moved in the direction opposite to the arrow F in FIG. 9, and the lock member 62 interlocked via the operation head 72B and the guide member 68 moves in the direction opposite to the arrow G, and comes out of the mooring hole 54 or 56. In this state, the main link 26 and the holding link 34
And the main link 26 is free to rotate within a predetermined range in the direction of the arrow J, and the holding link 34
Is free to rotate in the direction of arrow I within a predetermined range. Therefore, the main link 26 and the holding link 34 can be shifted between the normal position and the reclining position within a range in which the mooring pin 38 can slide in the elongated hole 32. It is pulled out in the direction of arrow H in FIG. 8 to set it to the reclining position, or pushed in the direction opposite to arrow H in FIG. 8 to shift to the normal position. In this way, when the handle portion 72A is released after the selective shift to the normal position or the reclining position, the operating member 72 is moved in the direction of the arrow F by the urging force of the spring 76, and each of the locks is interlocked therewith. The member 62 moves in the direction of arrow G, and each round bar portion 62A is inserted into the through hole 50 of the main link 26 and the mooring hole 54 or 56 of the holding link 34, and the relative position between the main link 26 and the holding link 34 is changed. The movement is stopped, and the child seat body 10 is set to the normal position or the reclining position.

The configuration, operation, and effect of the second embodiment other than those described above are the same as those of the first embodiment. Therefore, the same members are denoted by the same reference numerals, and the details thereof will be described. Detailed description is omitted.

Further, the holding means is provided with the first and second
It is not limited to the configuration described in the embodiment,
Various configurations can be adopted in which the main link 26 and the holding link 34 are relatively fixed at the normal position and the reclining position. For example, a lock mechanism using a locking mechanism, a gear mechanism, or the like can be used. Further, the interlocking means can of course be configured by using various elements of mechanical sliding treatment for interlocking the main link 26 and the holding link 34, for example, a guide groove and a slider.

[0054]

According to the vehicle seat with the child seat of the present invention, the portion of the child seat integrally mounted on the vehicle seat can be independently reclined so that a comfortable posture can be obtained. It has an excellent effect of doing.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing a state in which a child seat in a first embodiment of a vehicle seat with a child seat according to the present invention is in a normal position.

FIG. 2 is an overall perspective view showing a state in which the child seat is in a reclining position in the first embodiment of the vehicle seat with the child seat according to the present invention.

FIG. 3 is a schematic side view showing a main part of the child seat with the child seat according to the first embodiment of the present invention in the Nomar position of the child seat;

FIG. 4 is a schematic side view showing a main part of the vehicle seat with the child seat according to the first embodiment of the present invention at the reclining position of the child seat.

FIG. 5 is a cross-sectional view showing a main part of a cross section taken along line VV of FIG. 3;

FIG. 6 is a perspective view of a main part of the vehicle seat with a child seat according to the first embodiment of the present invention, showing a state of the child seat in a normal position in the first embodiment;

FIG. 7 is a perspective view of a main part of the vehicle seat with a child seat according to the first embodiment of the present invention, showing a state of the child seat in a reclining position in the first embodiment.

FIG. 8 is a perspective view showing a main part of a vehicle seat with a child seat according to a second embodiment of the present invention, in which a cushion portion is taken out and shown.

FIG. 9 is a schematic perspective view of a main part for explaining a mechanism of a main part in a second embodiment of the vehicle seat with a child seat according to the present invention.

FIG. 10 is a plan view of a main part of a second embodiment of a vehicle seat with a child seat according to the present invention, showing an interlocking portion between a lock member and a guide member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Child seat body 12 Bench seat 14 Seat back 16 Cushion part 18 Back part 22 Seat cushion 24 Frame 26 Main link 28 Axis pin 30 Axis pin 32 Slot (Interlocking means) 34 Holding link 36 Axis pin 38 Mooring pin (Interlocking) Means) (holding means) 40 adjusting lever (holding means) 44 engaging groove (holding means) 46 engaging groove (holding means) 50 through hole 54 anchoring groove 56 anchoring groove 58 holding mechanism (holding means) 62 locking member 68 guide Member 70 Guide plate 72 Operating member

Claims (5)

[Claims] 1. A back portion pivotally supported at a position close to the head in a seat back portion of a vehicle seat having a seat cushion on which a seated person sits down and a seat back as a backrest, and a seat in the back portion. A cushion portion pivotally supported at a position close to the cushion; a normal position in which the back portion and the cushion portion are drawn toward the seat back side; and a direction in which the back portion and the cushion portion are separated from the seat back. With the reclining position pulled out to
A vehicle seat with a child seat, comprising: holding means for releasably holding the positions of the back portion and the cushion portion. 2. A main link having one end pivotally supported at a portion of the seat back of the vehicle seat opposite to the seat cushion; a back portion fixed to the main link; and another end of the main link. A cushion portion pivotally supported by the seat back; a holding link having one end pivotally supported on the seat cushion side of the seat back; and the other end of the main link and the other end of the holding link interlocked by a slip pair. Interlocking means for causing the main link and the holding link to releasably stop when the back portion and the cushion portion are in the normal position or the reclining position. Vehicle seat with child seat. 3. A main link having one end pivotally supported at a portion of the seat back of the vehicle seat opposite to the seat cushion; a back portion fixed to the main link; and another end of the main link. A cushion portion pivotally supported by the seat back; a holding link having one end pivotally supported on the seat cushion side of the seat back; and the other end of the main link and the other end of the holding link interlocked by a slip pair. In order to make the long hole drilled on one side,
And a mooring pin protruding from the other and slidably inserted into the elongated hole; and when the back portion and the cushion portion are in a normal position or a reclining position, the mooring pin is movably engaged with the mooring pin, and An adjustment lever that holds a position or a reclining position, and a vehicle seat with a child seat. 4. A main link having one end pivotally supported at a portion of the seat back of the vehicle seat opposite to the seat cushion; a back portion fixed to the main link; and another end of the main link. A cushion portion pivotally supported by the seat back; a holding link having one end pivotally supported on the seat cushion side of the seat back; and the other end of the main link and the other end of the holding link interlocked by a slip pair. In order to make the long hole drilled on one side,
And a mooring pin protruding from the other side and slidably inserted into the elongated hole; and a through hole formed in the other end of the main link when the back portion and the cushion portion are in the normal position, and communicating with the through hole. A lock member that is simultaneously inserted into the holding link that is drilled in the holding link and is simultaneously inserted into the holding link that is separately drilled in the holding link that communicates with the through hole of the main link at the reclining position, A vehicle seat with a child seat, comprising: a holding mechanism configured to be detachable from the mooring hole by an operation member. 5. The child according to claim 1, wherein the back portion is folded back from the middle thereof and overlaps to form a seating surface of an appropriate size for a child. Vehicle seat with seat.