KR20160045704A - Child Seat - Google Patents

Abstract

The present invention provides a child seat having a simple structure and a higher impact resistance performance. And a seat body (30) supported on the pedestal (20) so as to be slidable with respect to the pedestal (20), wherein the seat body (30) comprises a front part (A) Of the seat body (30) with respect to the pedestal (20) by abutting against the pedestal (20) in at least two of the front part (A) and the lower part below the rear part Is regulated.

Description

Child Seat {Child Seat}

The present invention relates to a child seat provided on a vehicle seat.

Description of the Related Art [0002] As a child seat used when an infant is taken in a passenger car or the like, a child seat having a pedestal provided on a seat of a vehicle (for example, a car) and a seat body supported on the pedestal so as to be slidable is known ).

The child seat disclosed in Patent Document 1 has a reclining operation for changing the inclination angle of the seat body relative to the pedestal by operating the operation mechanism and a reclining operation for rotating the seat body relative to the pedestal Operation can be performed. Therefore, in order to securely fix the seat body to the pedestal during normal use without performing the reclining operation and the rotating operation, the upper portion of the back face abutting portion of the seat body and the upper portion of the standing portion of the pedestal are connected by the connecting pin .

Patent Document 1: JP-A-2010-012895

The connection between the seat body and the pedestal contributes to an improvement in the impact resistance performance. That is, for example, when the vehicle collides against the object at the front, the entire child seat receives the forward inertia force. By the connection between the seat body and the pedestal by the connecting pin, displacement of the seat body relative to the pedestal is suppressed do. From the viewpoint of the impact resistance performance, the smaller this displacement is, the better.

Further, the above-mentioned connecting pin is disposed on the upper portion of the back surface contact portion of the seat body and the upper portion of the standing portion of the pedestal. The lower surface of the connecting pin can simplify the structure, It is preferable because the degree of freedom in design and design of the standing portion of the pedestal is improved.

The present invention aims at providing a child seat having a higher impact resistance performance with a simple mechanism.

According to one embodiment of the present invention, there is provided a seat assembly comprising a pedestal and a seat body supported on the pedestal so as to be slidable with respect to the pedestal, wherein the seat body includes a front portion, a rear portion, The forward movement of the seat body with respect to the pedestal is regulated by abutting against the pedestal in at least two portions of the lower portion below the rear portion.

According to another embodiment of the present invention, the seat body is supported on the pedestal so as to be capable of changing between a plurality of reclining positions at different inclination angles, and at the same time rotatably supported on the pedestal Wherein the pedestal has an engaging portion, the seat body has a portion to be engaged with the engaging portion, the engaging portion is formed in an annular or disc shape around the rotation axis of the seat body, Wherein the front portion contacting the pedestal is a front portion of the engaging portion and the rear portion or the lower portion abutting the pedestal is a portion of the engaged portion engaging with the engaging portion .

According to another embodiment of the present invention, there is provided a child car seat characterized in that the engaged portion is a lower engaged portion disposed at a lower end portion of the seat body and an upper engaged portion disposed above the lower engaged portion .

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a child seat having a simple structure and a higher impact resistance.

Hereinafter, the present invention will be more fully understood from the accompanying drawings and description of the preferred embodiments of the present invention.

1 is a perspective view schematically showing the entire child seat according to the embodiment of the present invention.
2 is a perspective view of the child seat in the forward direction.
3 is a perspective view of the back side of the child seat.
4 is a perspective view of a pedestal of a child seat;
Figure 5 is a top view of the pedestal of Figure 4;
6 is an exploded perspective view of a part of the child seat.
7 is a perspective view of the bottom surface of the sheet body of the child seat.
8 is a perspective view of the engaging portion and the engaging portion of the child seat.
9 is a longitudinal sectional view passing through the center of the child seat in the transverse direction.
10 is an enlarged longitudinal sectional view on the left side of the center in the transverse direction of the child seat.
11 is an enlarged perspective view of the inside of the seat body of the child seat.
12 is a view for explaining a reclining mechanism and a rotation mechanism of a child seat.
13 is another drawing for explaining a reclining mechanism and a rotating mechanism of the child seat.
14 is a view for explaining a reclining operation of the child seat.
15 is a view for explaining the rotation operation of the child seat.
16 is a view for explaining the operation mechanism of the child seat.
17 is another view for explaining the operation mechanism of the child seat.
18 is another drawing for explaining the operation mechanism of the child seat.
Fig. 19 is an enlarged perspective view of the back side of the child seat. Fig.
20 is an exploded view of a part of a height adjustment mechanism of a child belt of a child seat.
21 is a view for explaining a height adjusting mechanism of a child belt of a child seat.
22 is another drawing for explaining a height adjusting mechanism of a child belt of a child seat.
23 is a perspective view showing the adjustment belt at the uppermost position of the child seat.
24 is a perspective view showing the adjustment belt at the lowermost position of the child seat.
25 is an enlarged perspective view of the rear surface of the child seat.
26 is a perspective view of the back panel of the child seat.
Fig. 27 is a top view of a part of the infant belt. Fig.
28 is a side view of the infant belt of FIG. 1 in a stretched state;
29 is a side view of the infant belt of FIG. 1 in a bent state.
30 is a front view of the infant belt of the child seat.
31 is a perspective view of the upper portion of the child seat.
Fig. 32 is an exploded view of the rotation mechanism tool of the cover mechanism of the child seat. Fig.
33 is a perspective view of a positioning mechanism of a support leg of a child seat.
34 is a longitudinal sectional view on the left side of the center of the positioning mechanism of Fig. 33;
35 is a longitudinal sectional view passing through the center of the positioning mechanism of Fig. 33;

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Throughout the drawings, corresponding components are denoted by common reference numerals.

Fig. 1 is a perspective view schematically showing the entire child sheet 1 according to the embodiment of the present invention. Fig. 2 is a perspective view of the child sheet 1 in a forward direction, FIG.

The child seat (1) has a child seat body (10) and a support leg (100) detachably mounted on the child seat body (10). The child seat body 10 has a pedestal 20 installed on a seat of a vehicle (e.g., an automobile) and a seat body 30 supported on the pedestal 20 so as to be slidable. On the other hand, as shown in Fig. 1, the seat body 30 including the seating surface of the child seat 1 is covered with the cover 11 having cushioning. In the other figures, For example.

In the present specification, in the description of each constituent member, the forward direction of the vehicle is referred to as "before" and the opposite side thereof is defined as "after" in a state where the child seat 1 is installed on the vehicle seat. The state of the seat body 30 shown in Figs. 1 and 2 is referred to as a 'forward direction state' of the seat body 30 and the state of the seat body 30 shown in Fig. Backward state ". In particular, when describing the seat body 30, there may be a case where the front side viewed from the infant sitting in the seat is referred to as "before" and the opposite side is described as "after". Furthermore, the 'right' direction and the 'left' direction are determined with respect to the 'front' direction.

The seat body 30 can be selectively rotated with respect to the pedestal 20 by the rotation mechanism described later between the forward directional state (FIGS. 1 and 2) and the rearward directional state (FIG. 3). Further, the seat body 30 can be reclined by changing the inclination angle with respect to the pedestal 20, that is, by selecting a plurality of reclining positions by means of a reclining mechanism described later.

The pedestal 20 will be described with reference to Figs. 4 and 5. Fig. Fig. 4 is a perspective view of the pedestal 20 of the child seat 1, and Fig. 5 is a top view of the pedestal 20. Fig. The pedestal 20 is formed as a whole hollow and includes a base portion 21 placed on the seat portion of the vehicle seat and a standing portion 22 extending upward from the rear portion of the base portion 21 and facing the back portion of the vehicle seat ). The pedestal 20 is formed by molding hard plastic, for example, polypropylene for each of upper and lower halves or right and left halves, and fitting them, but the present invention is not limited thereto.

In order to accommodate the lower portion of the seat body 30, a main body housing opening 23, which is a substantially elliptical opening extending in the front-rear direction, is formed on the upper surface of the base portion 21. A support wall 23a extending downward by a predetermined length is formed in a ring shape along the shape of the main body housing opening 23 at the periphery of the main body housing opening 23. On the upper surface of the base portion 21 around the main body housing opening 23 is formed an upper surface of the base portion 21 and a pedestal support surface 24 sloping gently toward the center. On the surface of the pedestal support surface 24, a plurality of convex curved projections 24a arranged in line are formed. A cylindrical curved surface 25 protruding from the bottom surface is formed in the bottom surface of the base portion 21 in the main body housing opening 23 and the curved curved surface 25 is formed on the top surface of the base portion 21 through the main body accommodating opening 23 It is exposed.

The cylindrical curved surface 25 is a concave curved surface composed of a part of a cylindrical surface extending in the left and right direction, i.e., in the transverse direction, and the rear end is positioned higher than the front end (Fig. In the cylindrical curved surface 25, three locking holes 25a are formed at equal intervals in the front-rear direction on the center line H passing through the center of the width of the child seat 1 in the transverse direction. In the cylindrical curved surface 25, a pair of locking grooves 25b extending in the front-rear direction are formed on left and right parallel lines offset from the center line H in the transverse direction.

A pair of elongated guide grooves 22b extending in the forward and backward directions are formed in the inclined surface 22a inclined toward the front formed in the middle portion of the rising portion 22 of the pedestal 20, have. The guide groove 22b guides the sliding movement of the upper connecting rod 43 in the longitudinal direction as described later and regulates the lateral movement. A rectangular opening 26 is formed in the upper surface 22c of the rising portion 22 of the pedestal 20 (Fig. 3). As will be described later, belt engaging projections 27 projecting in the transverse direction are formed in the left and right rear portions of the base portion 21 of the pedestal 20, that is, in the left and right lower portions of the rising portions 22 of the pedestal 20 .

The seat body 30 will be described with reference to Figs. 6 and 7. Fig. 6 is an exploded perspective view of a portion of the child seat 1, and Fig. 7 is a perspective view of the bottom surface of the child seat 1 of the child seat 1. As shown in Fig.

The seat body 30 has a seat bottom portion 31 and a rear face abutment portion 32 extending upward from the rear portion of the seat bottom portion 31. [ The seat body 30 is formed by integrally molding hard plastic, for example, polypropylene, but is not limited thereto. The outer surface of the seat lower portion 31 is formed by a conical portion 31a having a downwardly tapering end and a cylindrical portion 31b having a smaller diameter extending downward from the lower surface of the conical portion 31a. The lower end of the cylindrical portion 31b is closed by a circular seat bottom surface 33. [ A circular opening 33a is formed at the center of the seat bottom surface 33 and two circular openings 33b are formed on the line offset from the center of the circular opening 33a of the seat bottom surface 33 in the left direction. Respectively.

The front face of the back face abutment portion 32 is provided with a head plate 60 which is bent rightward and leftward to function as a headrest (Fig. 2). The position of the head plate 60 can be adjusted by sliding the head plate 60 in the up-and-down direction with respect to the rear face abutting portion 32, as described later. On the other hand, the head plate 60 is formed by integrally molding hard plastic, for example, polypropylene, but is not limited thereto.

6, 8, 9, and 10, the engaging portion and the engaged portion of the child sheet 1 will be described. 9 is a vertical cross-sectional view passing through the center of the child seat 1 in the lateral direction (left-right direction), and Fig. 10 is a longitudinal sectional view of the childsheets 1, Is an enlarged longitudinal sectional view on the left side of the center in the transverse direction of FIG.

A disc-shaped lower engaging guide member 40 as an engaged portion is integrally provided on the lower surface of the seat body 30, that is, on the outer surface of the seat bottom surface 33. The diameter of the lower engaging guide member 40 is larger than the diameter of the cylindrical portion 31b. 10, an annular engaging groove 40a is formed in the vicinity of the lower surface of the lower engageable guiding member 40. In this embodiment, In the engaging groove 40a of the lower engaged guide member 40, one end of the lower connecting rod 41 is engaged as an engaging portion from below. That is, the lower connecting rod 41 has, at one end thereof, an engaging hook 41a which is bent in a hook shape upward. On the other hand, the lower engaging guide member 40 is formed by integrally molding hard plastic, for example, polypropylene, but is not limited thereto.

The other end portion 41b (Fig. 10) of the lower connecting rod 41 is connected to the lower portion of the rod connecting member 42. Fig. The rod connecting member 42 is formed by integrally molding, for example, a polyacetal or the like, in a shape suitable for the corner portion at the rear upper portion of the inner space of the base portion 21, but is not limited thereto. 9, the rod connecting member 42 is brought into contact with the inner wall of the base portion 21 in a state in which the lower engaged guide member 40 is disposed at the rearmost position by the reclining mechanism described later, As shown in Fig. As a result, when the lower engaged guide member 40 is moved most rearward by the reclining mechanism, that is, when the seat body 30 is reclined in a more upright position, And serves as a cushioning material that abuts against the inner wall of the seat body 21 and absorbs shocks when the seat body 30 is moved. The lower connecting rod 41 is formed so as to bend along the inner wall shape so as not to interfere with the inner wall of the base portion 21 in this state.

A pair of upper connecting rods 43 are connected to the left and right of the upper portion of the rod connecting member 42 as an engaging portion. Each of the upper connecting rods 43 protrudes outward through a guide groove 22b formed in the rising portion 22 of the pedestal 20 (Fig. 10). The portion of the upper connection rod 43 protruding outward is formed of a linear portion extending upwardly, a half-circle portion bent forward from the tip of the straight portion, and a straight portion extending slightly downward from the tip of the half-circle portion . That is, the portion of the upper connection rod 43 protruding to the outside shows a hook shape such that the alphabet "J" is reversed upside down.

On the outer conical surface of the conical portion 31a of the seat body 30, an annular upper engageable guide member 44 is provided as an engaged portion. The upper engaging guide member 44 has a cylindrical guide wall 44a extending upward along the annular shape. As shown in Fig. 8, the tip ends of the upper connecting rod 43 are engaged with the guide wall 44a of the upper engaged guide member 44 from above. A collision supporting surface 44b, which is a convex curved surface formed in an annular shape, is formed below the outer circumferential surface of the upper engaged member 44. The upper engaging guide member 44 is formed by integrally molding hard plastic, for example, polypropylene, but is not limited thereto.

On the other hand, in order to reinforce the guide wall 44a in the engagement between the upper connecting rod 43 and the guide wall 44a, the upper engaged guide member 44 has a reinforcing member 44c. The reinforcing member 44c may be disposed over the entire circumference of the guide wall 44a and may be arranged so as to engage particularly in the forward and backward directions of the seat body 30 as shown in Fig. .

The upper engaging guide member 44 is covered from above by an annular cover member 45 so that the guide wall 44a is not exposed to the outside (FIG. 6). The upper engaging guide member 44 is rotatable while being covered with the cover member 45. The cover member 45 is provided with through holes 45a and 45b at corresponding positions so that the front ends of the upper connecting rod 43 can be engaged with the guide walls 44a of the upper engaged member 44 via the cover member 45 45a are formed. In addition, the protective cover 46 covers the upper connecting rod 43 from above so that the upper connecting rod 43 is not exposed to the outside. The protective cover (46) is provided on the cover member (45). On the other hand, in Fig. 10, the cover member 45 and the protective cover 46 are omitted.

The cover member 45 is formed by integrally molding acrylonitrile, butadiene, styrene, or the like, but is not limited thereto. The protective cover 46 is formed by integrally molding hard plastic, for example, polypropylene, but is not limited thereto. The lower connection rod 41 and the upper connection rod 43 are formed of a metal such as carbon steel, but are not limited thereto.

The internal mechanism relating to the reclining mechanism and the rotating mechanism will be described in detail with reference to Figs. 6, 9, 10 and 11. Fig. 11 is an enlarged perspective view of the inside of the seat body 30 of the child- The upper portion of the seat lower portion 31 of the seat body 30 is covered with a seat plate 34 forming a seating portion for infant and child seat and the seat plate 34 constitutes an internal space 35 below the seat portion 34 .

A circular opening 40b of the same diameter is formed at the center of the lower engaged member 40 corresponding to the circular opening 33a at the center of the seat bottom surface 33 of the seat body 30 (Fig. 6) . The circular opening 33a of the seat bottom face 33 and the circular opening 40b of the lower engaged guide member 40 are formed with a circular reclining lock pin 50 ) Is inserted. The tip end of the reclining lock pin 50 protruding downward from the lower surface of the lower engaged guide member 40 is inserted and engaged with any one of the lock holes 25a formed in the cylindrical curved surface 25 of the pedestal 20 .

Further, on the line offset to the left from the center of the circular opening 40b of the lower engaged member 40 corresponding to the two circular openings 33b of the seat bottom surface 33 of the seat body 30 , And two circular openings 40c are formed (Fig. 6). The two circular openings 33b of the seat bottom surface 33 and the two circular openings 40c of the lower engaged member 40 are rotatably supported by a U- Each end of the lock pin 51 is inserted. The tip ends of the rotation locking pins 51 protruding downward from the lower surface of the lower engaging guide member 40 are inserted into one of the lock grooves 25b formed in the cylindrical curved surface 25 of the pedestal 20 and engage with each other .

The offset amount of the line that the two circular openings 33b align from the center of the circular opening 33a of the seat bottom surface 33 and the offset amount of the line from the center of the circular opening 40b of the lower engaged member 40 The amount of offset of the line in which the circular openings 40c are aligned and the offset amount from the center line H of the lock groove 25b formed in the cylindrical curved surface 25 of the pedestal 20 are set to be the same.

11, on the inner surface of the seat bottom surface 33 of the seat body 30, that is, on the bottom surface of the inner space 35, a first guide (not shown) projecting upwardly and having a rectangular cross- A projection 33c and a second guide projection 33d are formed. The first guide projection 33c is disposed on the right side and the second guide projection 33d is disposed on the left side. The first guide projection 33c and the second guide projection 33d are slightly narrowed toward the upper side.

The first guide projection 33c is provided so that the first pin supporting member 52 is slidable in the up and down direction and the second pin holding member 53 is slidable in the up and down direction in the second guide projection 33d It is installed to be able to exercise. That is, the first pin retaining member 52 is formed with a complementary rectangular opening for accommodating the first guide protrusion 33c, and the second pin retaining member 53 is provided with the second guide protrusion 33d A complementary rectangular opening is formed. The first pin retaining member 52 has the reclining lock pin 50 described above and the second pin retaining member 53 has the rotation lock pin 51 described above. The first pin retaining member 52 is urged downward by the coil spring 54a and the second pin retaining member 53 is urged downward by the coil spring 54b.

On the front portion of the upper surface of the seat lower portion 31 of the seat body 30, an operation mechanism is provided. The operation mechanism has an operation pedestal 55. On the right side of the operating pedestal 55, a reclining operation lever 55a for operating the reclining mechanism as the first operating portion is provided so as to be slidable in the front-rear direction. On the left side of the operation table 55, a rotation operation lever 55b for operating the rotation mechanism as the second operation section is provided so as to be slidable in the front-rear direction. The first pin retaining member 52 is connected to the reclining operation lever 55a through an operation rod 56a extending obliquely upward. Further, the second pin retaining member 53 is connected to the rotation operation lever 55b via the operation rod 56b extending obliquely upward.

When the reclining operation lever 55a is pulled forward, the first pin retention member 52 slides upward along the first guide projection 33c through the operation rod 56a. Thereby, the reclining lock pin 50 held by the first pin retaining member 52 also moves upward, and the engagement of the tip of the reclining lock pin 50 and the lock hole 25a is released. As a result, the reclining operation of the seat body 30 becomes possible.

The reclining operation lever 55a is biased to the rear position via the operating rod 56a by the biasing force of the coil spring 54a which biases the first pin retaining member 52 downward. Therefore, when the reclining operation lever 55a is released after the reclining operation, the reclining operation lever 55a is returned to the rear position by the biasing force of the coil spring 54a and the tip of the reclining lock pin 50 is also locked And is inserted again into the hole 25a.

On the other hand, when the rotation operation lever 55b is pulled forward, the second pin retaining member 53 slides upward along the second guide projection 33d through the operation rod 56b. Thereby, the rotation lock pin 51 held by the second pin retaining member 53 also moves upward, and the engagement of the respective ends of the rotation lock pin 51 and the lock groove 25b is released. As a result, the seat body 30 can be rotated.

The rotation operation lever 55b is biased to the rear position via the operation rod 56b by the biasing force of the coil spring 54b which biases the second pin retaining member 53 downward. Therefore, when the rotation operation lever 55b is released after the rotation operation, the rotation operation lever 55b returns to the rear position by the biasing force of the coil spring 54b, And is inserted again into the lock groove 25b.

12 and 13, the reclining mechanism and the rotating mechanism of the child seat 1 will be described. Fig. 12 is a view for explaining a reclining mechanism and a rotation mechanism of the child seat 1, and Fig. 13 is another diagram for explaining the reclining mechanism and the rotation mechanism of the child seat 1. Fig. In Figs. 12 and 13, each configuration is schematically shown.

As described above, the seat body 30 has the lower engaging guide member 40, the upper engaged engaging member 44, and the cover member 45. The lower connecting rod 41 and the upper connecting rod 43 connected through the rod connecting member 42 are connected to each other while engaging the lower engaged member 40 and the upper engaged member 44 . Each of the pair of upper connecting rods 43 passes through the corresponding guide grooves 22b of the pedestal 20 so that the rod connecting member 42 is further supported on the inner surface of the inclined surface 22a of the pedestal 20 The sliding movement in the longitudinal direction of the lower connecting rod 41 and the upper connecting rod 43 is guided and the movement in the horizontal direction is regulated.

In Fig. 12, the seat body 30 is in the reclining position corresponding to the lock hole 25a at the rear of the three lock holes 25a. That is, the reclining position is fixed by engaging the reclining lock pin 50 protruding downward from the seat body 30 through the lower engaged member 40 with the lock hole 25a.

The outer surface of the seat lower portion 31 of the seat body 30 is supported on the pedestal support surface 24 of the pedestal 20 so as to withstand the load at the time of sitting on the infant. The lower engaging guide member 40 and the cylindrical curved surface 25 of the pedestal 20 are arranged slightly apart. The outer surface of the seat lower portion 31 is slidingly supported and supported on the pedestal support surface 24 of the pedestal 20 during the reclining operation and the rotating operation of the seat body 30. [ The lower engaging guide member 40 is slightly separated from the cylindrical curved surface 25 of the pedestal 20 during the reclining operation and the rotating operation of the seat body 30. [ In other words, the size and shape of the outer surface of the seat body 30 are determined so that the outer surface of the seat body 30 always abuts against and is supported by the pedestal support surface 24, and the lower engageable guide member 40 has a cylindrical curved surface 25 The size and shape are determined so that they are slightly separated from each other.

The seat body 30 abuts against the convex curved projections 24a formed on the pedestal support surface 24 of the pedestal 20 in a point-like manner, thereby reducing frictional resistance and allowing smooth sliding motion.

The engagement of the rotation lock pin 51 and the lock groove 25b not shown in this state is released so that the rotation of the seat body 30 around the rotation axis R substantially coincides with the center axis of the reclining lock pin 50 Thereby enabling rotational motion. On the other hand, the reclining lock pin 50 and the rotation lock pin 51 are formed of a metal such as carbon steel, but are not limited thereto.

When the seat body 30 is rotated with respect to the pedestal 20, the lower engaged guide member 40 provided on the seat body 30 is engaged with the engaging hook 41a of the lower connecting rod 41 in the annular engaging groove 40a of the seat body 30 in a state in which they are engaged with each other. At this time, since the lower connecting rod 41 is restricted from moving in the lateral direction as described above, it is stopped relative to the pedestal 20. The engaging hook 41a of the lower connecting rod 41 relatively moves while engaging with the annular engaging groove 40a of the lower engaging guide member 40. [

When the seat body 30 is rotated with respect to the pedestal 20, the upper engageable guide member 44 provided on the seat body 30 moves the respective ends of the upper connecting rod 43 to the cylindrical guide wall 44a in a state in which the seat body 30 is in engagement with the seat body 30 at all times. At this time, the upper connecting rod 43 is relatively stationary relative to the pedestal 20. Therefore, the distal ends of the upper connecting rod 43 are relatively engaged with the cylindrical guide wall 44a of the upper engaged guide member 44 while being engaged with each other.

The cover member 45 covering the upper engaging guide member 44 and the protective cover 46 of the upper connecting rod 43 are stopped relative to the pedestal 20 together with the upper connecting rod 43 . That is, the cover member 45 maintains the upper engaged member 44 covered while the upper engaged member 44 rotates as the seat body 30 rotates, It does not rotate itself.

Fig. 13 shows a state in which the seat body 30 is reclined with respect to the pedestal 20 from the reclining position at the rear side to the reclining position at the front side shown in Fig. 12, the engagement between the reclining locking pin 50 and the rear locking hole 25a is released, and the seat body 30 is slidably moved forward along the pedestal support surface 24. As shown in Fig. Then, the reclining position is fixed by engaging the reclining lock pin 50 with the front lock hole 25a.

The lower connecting rod 41 and the upper connecting rod 43 connecting between the lower engaged guide member 40 and the upper engaged guide member 44 of the seat body 30 are engaged with each other by the reclining And moves in the forward and backward directions along the guide groove 22b of the pedestal 20 following the operation. The seat body 30 performs a reclining operation and a rotating operation with respect to the pedestal 20 and the lower connecting rod 41 and the upper connecting rod 43 connected via the rod connecting member 42 are connected to the seat body 30 while maintaining the relative positional relationship with the seat main body 30 while maintaining the engagement state with the lower engaged guide member 40 and the upper engaged guide member 44 at all times.

On the other hand, naturally, the seat body 30 may be in the reclining position corresponding to the central locking hole 25a. Even when the seat body 30 is at the reclining position corresponding to the central lock hole 25a and the reclining position corresponding to the lock hole 25a at the front, the rotation axis line R Of the seat body 30 can be rotated.

The reclining operation and the rotation operation of the child seat 1 will be described with reference to Figs. 14 and 15. Fig. Fig. 14 is a view for explaining the reclining operation of the child seat 1, and Figs. 14 (a) to 14 (d) show the reclining operation in a time-series manner. Fig. 15 is a view for explaining the rotation operation of the child seat 1, and Figs. 15 (a) to 15 (d) show the rotation operation in a time-series manner.

14 and 15, three lock holes 25a, two lock grooves 25b, a reclining lock pin 50, a rotation lock pin 51, and a reclining operation lever 55a And a rotation operation lever 55b are schematically shown. The cylindrical curved surface 25, which is a concave curved surface, is schematically shown as a horizontal plane. In FIGS. 14 and 15, the left side is the front side of the child seat 1, and the right side is the rear side of the child seat 1. 14 and 15, the upper diagram schematically shows the viewpoint from the upper side including the cross-sectional view at the line XX in the lower diagram, and the lower diagram shows the viewpoint from the front in the upper diagram YY, that is, a section along a line along the left lock groove 25b.

The reclining operation will be described below. Fig. 14 (a) is a state in which the seat body 30 is in the forward direction, and the reclining operation lever 55a and the rotation operation lever 55b are not operated. The reclining lock pin 50 is engaged with the central lock hole 25a of the three lock lock pins, and the rotation lock pin 51 is engaged with the left lock groove 25b. 14B shows a state in which the reclining operation lever 55a is pulled forward and the reclining lock pin 50 is moved upward and the engagement with the lock hole 25a is released.

Fig. 14C shows a state in which the seat body 30 is slid forward in a state in which the reclining operation lever 55a is pulled forward. That is, this operation is a reclining operation for reclining the seat body 30 with respect to the pedestal 20. During the reclining operation, the rotation lock pin 51 is engaged with the lock groove 25b. 14 (d) is an operation of fixing the seat body 30 to the pedestal 20 after the seat body 30 is slid forward, that is, after reclining. That is, by releasing the reclining operation lever 55a, the reclining operation lever 55a returns to the rearward position, and the reclining lock pin 50 is inserted into the lock hole 25a at the front and engages.

15A is a state in which the seat body 30 is in the forward direction and the reclining operation lever 55a and the rotation operation lever 55b are not operated. The reclining lock pin 50 is engaged with the central lock hole 25a of the three aligned in the front-rear direction, and the rotation lock pin 51 is engaged with the lock groove 25b on the left. 15B shows a state in which the rotation operation lever 55b is pulled forward and the rotation lock pin 51 is moved upward and the engagement with the lock groove 25b is released.

15C shows a state in which the seat body 30 is rotated 180 degrees around the rotation axis line R of the reclining lock pin 50 while the reclining operation lever 55a is pulled forward. That is, this operation is a rotating operation in which the seat body 30 is rotated with respect to the pedestal 20 and the seat body 30 is changed from the forward state to the backward state. During the rotation operation, the reclining lock pin 50 is engaged with the lock hole 25a. 15D is an operation for fixing the seat body 30 to the pedestal 20 after the seat body 30 is rotated. In other words, by releasing the rotation operation lever 55b, the rotation operation lever 55b returns to the rear position, and the rotation lock pin 51 is inserted into the other lock groove 25b and engaged.

The child seat 1 includes a pedestal 20 having a lower connecting rod 41 and an upper connecting rod 43 as an engaging portion and a pedestal 20 having an engaging portion (30) having a lower engaged guide member (40) and an upper engaged guide member (44) as a joined portion to be engaged with the seat body (30) The engagement between the engaging portion and the engaged portion is maintained. That is, the relative positional relationship between these members is always constant. Therefore, the child seat 1 is a simple mechanism having a smaller number of parts and smaller parts compared with the conventional child seat having the reclining mechanism and the rotation mechanism, It is possible to recline the seat body regardless.

Since the reclining mechanism and the rotating mechanism are disposed in the lower portion of the child seat 1, that is, the lower portion of the seat 31 and the rising portion 22 of the pedestal 20, , And as a result, stable operation can be achieved. Since the reclining mechanism and the rotating mechanism are disposed below the rising portion 22 of the pedestal 20, the upper portion of the rising portion 22 of the pedestal 20 can be freely used.

Moreover, since the reclining mechanism and the rotating mechanism are not exposed to the outside during the reclining operation and the rotating operation of the seat body 30, the fingers and the like are not caught and the safety is excellent, and the design is also excellent.

In addition, the child seat 1 is configured such that the reclining lock pin 50 and the rotation lock pin 51 are separately formed and independently operated, so that, for example, as in the child seat disclosed in Patent Document 1, The operation can be reliably and stably performed with a simple mechanism as compared with the case where the reclining operation and the rotation operation are selected in accordance with the amount of protrusion. Further, since it is not necessary to change the amount of protrusion according to a desired operation, the machining accuracy and assembly precision of each part of the reclining mechanism and the rotating mechanism are not strict compared with the child seat disclosed in Patent Document 1, And the manufacturing cost can be reduced.

As long as the engagement between the pedestal 20 and the seat body 30 is maintained during the reclining operation and the rotation operation, the engagement portion and the engagement portion can be arbitrarily configured. For example, when the pedestal 20 has only one of the lower engaged guide member 40 and the upper engaged member 44 and the seat body 30 has the corresponding lower connecting rod 41 and upper connecting rod 41, (43) may be provided. The lower engaging guide member 40 may be formed in an annular shape or a polygonal shape instead of a disc shape. The lower engaging guide member 40 and the upper engaged engaging member 44 may be integrally formed with the seat body 30. [

The lower connecting rod 41 and the rod connecting member 42 and the upper connecting rod 43 as a connecting member between the lower engaged guide member 40 and the upper engaged guide member 44 are integrally formed It is also good. The lower connecting rod 41 and the rod connecting member 42 and the upper connecting rod 43 are arranged at the rear of the child seat 1 of the seat body 30, The engagement of the lower engaging guide member 40 and the upper engageable guiding member 44 at the side of the seat body 30 may be carried out as long as the seat body 30 can be moved back and forth in accordance with the reclining operation.

Three locking holes 25a are formed in the cylindrical curved surface 25 of the pedestal 20, but two or four locking holes 25a may be provided. That is, the reclining positions corresponding to the number of the lock holes 25a can be set to any number, and they may not be equally spaced. A pair of locking grooves 25b are formed in the cylindrical curved surface 25 of the pedestal 20 in parallel with the center line H. The locking grooves 25b are formed at an arbitrary angle with respect to the center line H, Grooves may be formed. In other words, in addition to the forward and backward states of the seat body 30, the infant and child may be placed in the lateral direction facing sideways. Also in this transverse direction state, a plurality of locking holes may be provided in the transverse direction so that the reclining operation can be performed.

As described above, the child seat 1 is capable of reclining the seat body 30 by pulling the reclining operation lever 55a, and by rotating the seat body 30 by pulling the rotation operation lever 55b . If the reclining operation and the rotation operation can be performed at the same time, there is a possibility that the seat body 30 will draw a complex and unpredictable locus and collide with the operator. Thus, the child seat 1 is configured such that the reclining operation and the rotating operation can not be performed at the same time.

The operation mechanism of the reclining operation lever 55a and the rotation operation lever 55b will be described with reference to Figs. 16 to 18. Fig. 17 is a view for explaining an operating mechanism of the child seat 1, and Fig. 18 is a view for explaining the operating mechanism of the child seat 1, FIG. 16 to 18, the upper portion is the rear side of the seat body 30 and the lower portion is the front side of the seat body 30.

The operation switch 57 is a thick plate-shaped member, and is formed in a shape having a curved side surface, for example, a crescent moon shape or a boomerang shape. The operation switch 57 is provided on the operation pedestal 55 so as to be rotatable around the fixed pin 57a by the fixed pin 57a at the center portion thereof. An abutment surface 57b is formed on the outer side of the bending of both end portions of the operation switch 57, that is, on the rear side surface, to diffuse toward the front of the seat body 30 outward. On the other hand, since the operation switch 57 is covered from above by the reclining operation lever 55a and the rotation operation lever 55b, it can not be seen from the outside.

The operation rod 56a is connected to the reclining operation lever 55a by the rod holding member 58a and the operation rod 56b is connected to the rotation operation lever 55b by the rod holding member 58b. That is, the end of the operating rod 56a is bent upward, that is, bent in the forward direction perpendicular to the plane of the drawing in the figure, and the rod holding member 58a formed in a corresponding L shape is fitted from above, And is connected by being fitted from the front side perpendicularly to the ground. This also applies to the rod holding member 58b. On the other hand, the rod holding member 58a and the rod suspending member 58b may be integrally formed with the reclining operation lever 55a and the rotation operation lever 55b, respectively.

Next, the operation of the operation switch 57 will be described. In the state of the operating mechanism shown in Fig. 16, when the reclining operation lever 55a is pulled forward, that is, downward in the drawing, the rod holding member 58a moves forward together with the operating rod 56a. At this time, the tip end, that is, the front end portion of the rod holding member 58a comes into contact with the abutment surface 57b of the operation switch 57 and rotates the operation switch 57 around the fixed pin 57a. When the reclining operation lever 55a is pulled further, the reclining operation lever 55a comes into contact with the stopper portion 55c of the operation pedestal 55 and stops as shown in Fig.

The abutment surface 57b of the operating switch 57 rotated in this state abuts the side surface of the rod holding member 58a while the tip end of the other rod holding member 58b, The other abutting surface 57b of the engaging portion 57b. Therefore, the movement of the rotation operation lever 55b is stopped by the tip end of the rod holding member 58b abutting against the abutment surface 57b of the operation switch 57. [ In other words, the front end portion of the other rod holding member 58b is in contact with the side surface of the rod holding member 58a while the abutting surface 57b of the turned operation switch 57 is in contact with the side surface of the rod holding member 58a. A crescent shape or a boomerang shape of the operation switch 57 is determined so as to abut the other abutting surface 57b.

In the state in which the reclining operation lever 55a is pulled (Fig. 17), the rotation operation lever 55b can not be pulled. Conversely, when the rotation operation lever 55b is pulled I can not. When either of the reclining operation lever 55a or the rotation operation lever 55b pulled forward is returned to the original position, the reclining operation lever 55a or the rotation operation lever 55b can be pulled forward. Therefore, according to such an operating mechanism, it is possible to safely realize that the recliner mechanism and the rotating mechanism are prevented from being operated simultaneously, that is, the operation of the alternative can be realized with a simple mechanism.

Since the child seat 1 can be operated by reclining and rotating the seat body 30 by simply pulling the reclining operation lever 55a or the rotation operation lever 55b, So that the other hand can be freely used. Further, even if the operating mechanism is operated with one hand, stable operation can be achieved.

On the other hand, as described above, one of the reclining operation lever 55a or the rotation operation lever 55b is pulled and the rod holding member 58a is rotated until the operation switch 57 comes into contact with the side surface of the rod holding member 58a. Even if the sliding movement of the other of the reclining operation lever 55a or the rotation operation lever 55b is restricted at the time point when the tip of the rod holding member 58a rotates the operation switch 57, good. That is, the operation switch 57 may be a simple rectangular member or the like. On the other hand, the operating mechanism having the above-described operation switch 57 is applicable not only to the field of the child seat but also to other fields where there is a demand for safely realizing an alternative operation.

3, a rectangular opening 26 is formed in the upper portion of the rising portion 22 of the pedestal 20, as described above. That is, in the child seat 1, the reclining mechanism and the rotating mechanism are disposed below the seat lower portion 31 and the standing portion 22 of the pedestal 20, (26) can be formed. The opening 26 can be used as a handle for transporting the child seat 1.

4, a mechanism or apparatus 90 having various functions can be mounted on the opening 26. In addition, Thereby, the pedestal 20 can have a function other than the supporting function of the seat body 30. Particularly, in the rearward state of the seat body 30, for example, a camera is mounted to photograph a still image or a moving image, and the shape of the infant sitting at the seat can be observed by a guardian or the like through a cellular phone or a car navigation system . In addition, a screen may be mounted so that the infant can enjoy the image. Furthermore, a speaker may be mounted so that the infant can enjoy the voice. Furthermore, an electric fan, an air conditioner, a lighting device, or the like may be mounted. Furthermore, an ion generating device that emits ions into the air by a plasma discharge or the like may be mounted. According to such an ion generating device, it is possible to expect air cleaning effects such as air disinfection, vibration damping, sterilization, decomposition of organic matter and deodorization, and effects of hair care and face care for care of hair and skin of infants and caregivers . Further, in order to make these devices and the like simply replaceable, these devices and the like may be mounted through a mounting mechanism.

In order to use an electric device mounted on the opening 26, a battery may be interchangeably disposed inside the pedestal 20, or a cigarette socket of a vehicle may be used as a power source. The power cable from the power source such as the battery or the cigarette socket to the electric device is routed so as to pass through the lower surface and the back surface of the child seat 1 so as not to interfere with the reclining operation and the rotating operation of the seat body 30, It is preferable to conduct wiring.

On the other hand, it goes without saying that the opening 26 may have a shape other than a rectangular shape, for example, a circular shape. Further, even if the opening 26 penetrates rearward, it is also possible to provide a simple concave. Further, the opening 26 as described above is not only a type of child seat capable of reclining and rotating the seat body with respect to the pedestal, but also a type in which the seat body is fixed to the pedestal, It is also applicable to the type that is installed.

However, the child-resistant seat is required to have high impact resistance for the purpose of protecting the infant from the impact acting on the vehicle at the time of collision. The impact resistance performance is verified by the amount of displacement of the child seat relative to the seat of the vehicle immediately after the collision or the amount of displacement of the motion of the irregular child seat caused by the reaction due to the displacement immediately after the collision. In order to realize high impact performance, it is preferable that the child seat is firmly fixed to the seat of the vehicle. To fix the child seat, a seat belt of a seat belt device usually provided on a seat of a vehicle is used. A seat belt device provided on a seat of a vehicle includes a seat belt, a tongue provided with a tongue plate in which the seat belt is inserted, and a buckle detachable from the tongue plate.

4, the child seat 1 is formed with belt engaging projections 27 on the left and right rear portions of the base portion 21 of the pedestal 20, as described above. The belt engaging projection 27 is disposed at a position where it engages with the tongue or buckle 91 of the seat belt device from the rear side while the pedestal 20 is installed on the seat of the vehicle. In other words, the belt engaging projections 27 are formed to have a certain length so as to correspond to the positions of other tongues or buckles 91 depending on the type of vehicle. On the other hand, the belt engagement protrusion 27 may be a groove-shaped belt engagement groove as long as it can engage with the tongue or the buckle 91 of the seat belt device.

The tongue or buckle 91 of the seat belt device is usually disposed in the vicinity of the seat surface of the seat of the vehicle and has a higher rigidity than the seat belt of the seat belt device. Therefore, by engaging the tongue or buckle 91 of such a seat belt device with the pedestal 20 of the child seat 1, in particular, the belt engaging projection 27 formed in the lower portion of the pedestal 20 or the belt engaging groove, So that the pedestal 20 can be fixed. As a result, a high impact resistance performance is realized.

The belt engaging projections 27 or the belt engaging grooves are engaged with the tongue or buckle 91 so that the tongue or the buckle 91 engages more reliably without slipping or falling out. It is preferable that the concave portion between the projections 27 or the sectional shape perpendicular to the longitudinal direction of the belt engaging groove is formed so as to form an acute angle. The belt engaging projection 27 or the belt engaging groove may be engaged not with the tongue or the buckle 91 but with the seat belt of the seat belt device. Also in this case, by fixing the lower portion of the pedestal 20 of the child seat 1, it is possible to securely fix it more securely than the conventional child seat. Furthermore, the belt engaging projection 27 may be formed separately from the pedestal 20.

The above-described belt engaging projection 27 or the belt engaging groove is not only a type of child seat capable of reclining and rotating the seat body with respect to the pedestal, but also a type in which the seat body is fixed to the pedestal, The present invention is also applicable to a type in which it is detachably installed.

The child seat 1 has a plurality of support points for shocks in order to suppress the amount of displacement of the seat body 30 relative to the pedestal 20 and realize higher impact resistance performance. In other words, for example, when the vehicle collides with an object at the front, the entire child seat 1 is subjected to an inertial force in all directions. At this time, the pedestal 20 is fixed by the seat belt of the vehicle, whereas the seat body 30 is not fixed by the seat belt of the vehicle. Therefore, the seat body 30 tries to move in all directions, and the amount of displacement of the seat body 30 is suppressed by abutting the seat body 30 and the pedestal 20 at the support point.

10, each child seat 1 is engaged with the upper engaging guide member 44 at each end of the upper connecting rod 43, so that the supporting point A . That is, when the entire child seat 1 receives an inertial force in all directions due to a collision of the vehicle, the front ends of the upper connection rods 43, which are disposed on the pedestal 20 side fixed directly to the seat of the vehicle, And an upper engageable guide member 44 disposed on the main body 30 side is supported rearward. As a result, when the vehicle collides with the object, the forward displacement of the seat body 30 relative to the pedestal 20 is suppressed.

Similarly, the collision support surface 44b formed on the outer peripheral surface of the upper engaged member 44 provided on the seat body 30 and the support wall surface 28a inside the front end portion of the pedestal 20 form a support point B . 8) of the lower engageable guide member 40 provided on the seat body 30 and the support wall 23a constituting the body accommodating opening 23 of the pedestal 20, The supporting point C is formed. 10, the support point C is a rear end portion of the lower end portion of the support wall 23a of the pedestal 20 and a rear end portion of the upper face 40d of the lower to-be-engaged guide member 40. [

The supporting point C is located on the left and right portions of the lower end portion of the annular support wall 23a of the pedestal 20 and on the upper surface 40d of the lower engaged guide member 40 depending on the reclining position of the seat body 30. [ The left and right portions may also be used. That is, the upper surface 40d of the lower engageable guide member 40 is engaged with the lower engageable guiding member 40 (see FIG. 2) so as to constitute the lower end of the support wall 23a of the pedestal 20 and the support point C at any reclining position. Is larger than the width L (FIG. 5) in the transverse direction of the main body housing opening 23 of the pedestal 20. The seat body 30 accommodated in the main body housing opening 23 is prevented from being detached from the pedestal 20 in the child seat 1. [

It is possible to suppress the displacement of the seat body 30 with respect to the pedestal 20 in particular by suppressing the displacement of the seat body 30 toward the front of the seat body 30 with respect to the pedestal 20, Is regulated. As a result, a higher impact resistance performance can be realized. Since the support points A, B and C are disposed below the seat lower portion 31 of the child seat 1 and the rising portions 22 of the pedestal 20, 30 can be more stably supported. Since the support 20 supports the seat body 30 by the support points A, B, and C, the impact is dispersed. Therefore, the material forming the pedestal 20 and the seat body 30 can be separated from the metal or the like A lightweight resin or the like can be used and the cost can be reduced.

On the other hand, the pedestal 20 and the seat body 30 need not always be in contact with each other at the supporting point, but may be abutted only at the time of collision at a slight distance. The child seat 1 may be configured to have only one fulcrum A or may have two fulcrums of the fulcrums A, B and C, and three fulcrums A, B, C). The support point for realizing a high impact resistance performance is not limited to the above three parts. That is, the portion of the seat body 30 that abuts against the pedestal 20 includes a front portion and a rear portion including the upper engaged guide member 44, and a lower engaged member 40 The lower part including the lower part, can be arbitrarily configured.

The height adjusting mechanism of the infant belt 70 (Fig. 1) will be described with reference to Figs. 19 to 22. Fig. Fig. 19 is an enlarged perspective view of the back surface of the child seat 1, Fig. 20 is an exploded assembly view of a part of the height adjusting mechanism of the child seat of the child seat, Fig. And Fig. 22 is another view for explaining the height adjustment mechanism of the infant belt of the child seat 1. Fig. On the other hand, in Fig. 19, the back panel 68, which will be described later, is omitted.

The child seat 1 has a wide baby belt 70 corresponding to a seat belt provided on a seat of the vehicle so as to safely restrain infants and children to the child seat 1. The infant belts 70 are respectively disposed on the left and right sides of the front face abutting portion 32 of the seat body 30 and the left and right infant belts 70 are fastened at the front side of the infant body. The infant belt 70 extends forward from the back of the back face abutment portion 32 of the seat body 30 through the back abutment portion 32 and penetrates the seating face, And is fixed at a lower portion of the seat lower portion 31. [

The position of the portion of the rear face abutting portion 32 through which the infant belt 70 penetrates from the seating surface of the seat body 30, that is, the height of the infant belt 70, needs to be adjusted in accordance with the seat height of the infants. Therefore, the child seat 1 has a height adjusting mechanism of the infant belt 70 in order to appropriately adjust the height of the infant belt 70.

Therefore, in the back face abutting portion 32 of the seat body 30, two openings 36 extending in the up-down direction, that is, the height direction are formed. These openings 36 are formed symmetrically with the support portion 37 at the center of the back face abutting portion 32 sandwiched therebetween. The openings 36 extend in the height direction Respectively. The moving portion 61 including the above-described head plate 60 disposed on the front face of the rear face abutment portion 32 is slidable in the height direction with respect to the back face abutment portion 32 Respectively.

The moving part 61 includes a head plate 60 disposed on the front face of the back face abutment part 32 and a back face abutment part 32 disposed on the back face of the back face abutment part 32, A first engaging member 63 provided to the rotation supporting member 62 and a second engaging member 63 provided to the first engaging member 63, (64). 20, the rotation supporting member 62, the first engaging member 63, and the second engaging member 64 are slightly attached to the rear face abutting portion 32 and the head plate 60 for clarity It is being enlarged. Further, since the head plate 60 holds the infant belt 70 through the slot opening 60a, the head plate 60 may be configured to hold the belt holding member by other members.

The head plate 60 is provided with a plurality of openings 36 having substantially the same width as the openings 36 at positions corresponding to the two openings 36 of the back face abutment portion 32 for inserting the infant belt 70 therethrough. The slot openings 60a are formed. A mounting portion 60b protruding rearward through the opening 36 of the rear face abutting portion 32 is formed at the center of the head plate 60 above each slot opening 60a. A column-shaped engaged pillar 60c protruding rearward through the opening 36 of the rear face abutting portion 32 is formed below each of the slot openings 60a and on the center side of the head plate 60 . Engagement holes 60d penetrating in the vertical direction are formed at the respective ends of the engaged pillar 60c.

A flat plate-shaped support plate 60e which protrudes rearward through the opening 36 of the rear face abutting portion 32 and diffuses in the height direction is formed on the right side of the left and right slot openings 60a of the left slot opening 60a, Respectively. The support plate 60e is provided with a recess 60f for receiving a circumferential engaging rod 65 described later. On the other hand, two vent openings 60g which are always opened toward each of the openings 36 are formed further below each of the slot openings 60a irrespective of the height position of the head plate 600. [

The rotation support member 62 includes a housing 62a, a rectangular flat plate-shaped protection wall 62b projecting upward from the housing 62a, and a flat first knob 62c protruding rearward from the housing 62a ). The housing 62a is provided to the mounting portion 60b (Fig. 19) of the head plate 60 protruding through the respective openings 36 of the back face abutting portion 32, The support member 62 is integrally provided. At this time, between the head plate 60 and the rotation support member 62, a support portion 37 of the back face abutment portion 32 is disposed. The protection wall 62b prevents the operator's hand from touching the support portion 37 of the seat body 30 when the moving portion 61 is operated.

The first engaging member 63 has a box-like body member 63a. On the back surface of the body member 63a, a rectangular opening 63b is formed. The upper portion of the body member 63a is provided with respect to the housing 62a of the rotation support member 62 so that the first engagement member 63 is rotatable about the rotation axis extending in the transverse direction. In the lower portion of the body member 63a, a cylindrical engaging rod 65 extends toward the left and right outside. The engaging rod 65 has reinforcing rods 65a for reinforcing inserted in the right and left in the inside thereof. The reinforcing rod 65a is formed of a metal such as carbon steel, but is not limited thereto.

The engaged curved surface portion 38 is formed on the rear surface of the back face abutment portion 32 on the right side of the left side and the right side opening 36 of the support portion 37 and the left opening 36. [ The engaging curved surface portion 38 includes a part of the cylindrical surface extending in the transverse direction and has a concave curved surface having a wide entrance formed therein so as to be easily accommodated in the circumferential engaging rod 65, As shown in Fig.

The head plate 60 is brought into contact with the rear face abutting portion 32 at any desired position by engaging the engaging rod 65 of the first engaging member 63 with any concave curved surface of any of the rows of the engaged curved surface portions 38 Height position. At this time, the engaging rod 65 of the first engaging member 63 engaged with the engaging curved surface portion 38 is engaged with the supporting plate (not shown) of the head plate 60 sliding in the height direction together with the first engaging member 63 60e, 60e. The first engaging member 63 is formed by a torsion spring 63c integrally formed in the inside of the rotation supporting member 62 so that the engaging rod 65 is engaged with the rear abutting portion 32 And is urged in the rotational direction in which it engages with the engaged curved surface portion 38.

The second engaging member 64 is a plate-like member slidable in the vertical direction inside the body member 63a of the first engaging member 63 and is urged downward by the coil spring 64a. A pair of engaging pins 66 projecting downward from the body member 63a of the first engaging member 63 are formed laterally on the lower end of the second engaging member 64. [ Each of the engaging pins 66 is engaged with the head plate 60 by being inserted into the engaging hole 60d of the engaging column 60c protruding from the head plate 60 through the opening 36. [ The second engaging member 64 has a flat second knob 64b protruding rearward through a rectangular opening 63b of the first engaging member 63. [

The operation of adjusting the height of the infant belt 70 will be described with reference to Fig. 21 is a view for explaining the height adjusting mechanism of the infant belt 70 of the child car seat 1 as described above. FIG. The first knob 62c of the rotation supporting member 62 and the second knob 64b of the second engaging member 64 are held at the same time and the second knob 64b is moved in the direction of the first knob 62c, (Fig. 21 (a)). That is, the second engaging member 64 is pulled upward with respect to the first engaging member 63. This operation is performed, for example, by raising the thumb on the upper surface of the first knob 62c and lifting the lower surface of the second knob 64b upwards by sensing and stopping. The engaging pin 66 of the second engaging member 64 and the engaging column 60c of the head plate 60 are pulled upward by pulling the second engaging member 64 upward with respect to the first engaging member 63, The engagement with the engaging hole 60d is released. As a result, the first engaging member 63 becomes rotatable with respect to the rotation supporting member 62 (Fig. 21 (b)).

Further, when the second knob 64b of the second engaging member 64 is continuously pulled up, the first engaging member 63 rotates with respect to the rotation supporting member 62. [ As a result, the engaging rod 65 of the first engaging member 63 is disengaged from the engaged curved surface portion 38 of the back surface of the back surface abutting portion 32. As a result, the head plate 60 becomes slidable in the height direction with respect to the back face abutting portion 32 (Fig. 21 (c)). The infant belt 70 is slid to a desired height by sliding the head plate 60 penetrating the slot opening 60a in the height direction with respect to the back abutment portion 32 in this state, It becomes possible to exercise.

Here, the second engaging member 64 is pulled upward with respect to the first engaging member 63, and the first engaging member 64 is rotated with respect to the rotation supporting member 62 in a state in which the engaging pin 66 is disengaged 63, the sliding movement of the second engaging member 64 with respect to the first engaging member 63 is restricted. This will be described with reference to FIG. 22 is another view for explaining the height adjustment mechanism of the infant belt of the child seat 1 and is a longitudinal sectional view including the side surface of the second engaging member 64 as described above. In Fig. 22, members other than the first engaging member 63 and the second engaging member 64 are omitted and drawn.

22) is formed on the side surface of the second engaging member 64 and an engaging concave portion 64c (see Fig. 20) is formed in the housing 62a of the rotation supporting member 62 62d are formed. The second engaging member 64 is pulled upward with respect to the first engaging member 63 in the state of Figure 22 (a) (Figure 22 (b)), The engaging member 63 is rotated. The engagement protrusion 64c of the second engagement member 64 is engaged with the engagement concave portion 62d of the rotation support member 62 (Fig. 22 (c)). As a result, the sliding movement of the second engaging member 64 with respect to the first engaging member 63 is restricted.

Therefore, even if the pulling-up force of the second knob 64b of the second engaging member 64 is weakened in this state, the engaging pin 66 is not projected again by the biasing force of the coil spring 64a. The engaging member 65 of the first engaging member 63 is engaged with the engaging curved surface portion 38 of the back surface abutting portion 32 The second engaging member 64 is securely constructed so as not to return to the original position.

In order to fix the infant belt 70 to the height after sliding the infant belt 70 to a desired height, the above-described series of operations may be reversed. That is, the first engaging member 63 is rotated with respect to the rotation support member 62, and the engaging rod 65 of the first engaging member 63 is engaged with the engaging curved surface portion 38 of the back face abutting portion 32, . As a result, engagement between the engaging projection 64c of the second engaging member 64 and the engaging recessed portion 62d of the rotation supporting member 62 is released. The second engaging member 64 is slid downward relative to the first engaging member 63 and the engaging pin 66 of the second engaging member 64 is engaged with the engaging pillar 60c (Not shown). These operations are assisted by the biasing force of the torsion spring 63c and the coil spring 64a, so that they can be performed easily.

The height adjustment mechanism of the infant belt 70 described above can be used for adjusting the engagement of the second engaging member 64 with respect to the head plate 60 and the engagement of the first engaging member 63 with the back face abutting portion 32 So that even if an impact is applied to the entirety of the child seat 1, the engagement of both the child seat 1 and the child seat 1 is not released. That is, the disengagement of the second engaging member 64 with respect to the head plate 60 is caused by the upward movement, and the disengagement of the first engaging member 63 with respect to the rear face abutting portion 32 is released, That is, in a direction away from the back face abutting portion 32. In this case, Therefore, the direction of the force required to release these engagement is approximately orthogonal.

 Nevertheless, disengagement of the second engaging member 64 with respect to the head plate 60 and disengagement of the first engaging member 63 with respect to the back face abutting portion 32 are performed by the second engaging member 64 And pulling up the second knob 64b of the second switch 64a. That is, by applying a force to the second knob 64b of the second engaging member 64 in the same upward direction at all times, it is possible to cancel the engagement in the two steps. Therefore, the above-described height adjusting mechanism of the infants belt 70 is not easily released from the unintentional engagement, and is configured to easily release the intended engagement.

Since the engaging curved surface portion 38 is formed while leaving the abutment portion 37 at the center of the back surface abutting portion 32, the strength of the back surface abutting portion 32 is maintained. The concave curved surfaces of the engaging curved surface portions 38 of the back surface abutting portion 32 are formed in three rows in the height direction so that the engaging rods 65 of the first engaging member 63 are arranged in a row But is prevented from being engaged with the concave curved surfaces of the engaging curved surface portions 38 of different heights.

On the other hand, the height adjusting mechanism, that is, the moving mechanism of the infant belt 70 can be arbitrarily configured as long as it can be operated by the operation described with reference to Fig. That is, in the moving mechanism, the direction of sliding movement is parallel to the direction of the force applied to the second engaging member. First, the engaging is released by the sliding motion of the second engaging member. Then, And may be arbitrarily configured as long as the sliding movement is enabled. Further, the above-described height adjusting mechanism is applicable not only to the field of the child seat but also to other fields where there is a demand for safely realizing the operation of the moving mechanism.

By adjusting the height of the infant belt 70 appropriately according to the height of the infant seat 70, the degree of tightness of the infant belt 70 according to the body shape of the infant, that is, It is necessary to appropriately adjust the length extending to the front side of the front panel 32.

23 and 24, adjustment of the height of the infant belt 70 using the adjusting belt 75 will be described. Fig. 23 is a perspective view showing the adjustment belt 75 at the uppermost position of the child seat 1, and Fig. 24 is a perspective view showing the adjustment belt 75 at the lowermost position of the child seat 1. 23 and 24 are perspective views of the seat body 30 of the child seat 1 as viewed from below.

The left and right infant belts 70 are connected at the rear side of the back face abutting portion 32 of the seat body 30, and thus constituted by one belt. The infant belt 70 is connected to one end of one wide adjustment belt 75 at the back of the back face abutment portion 32 of the seat body 30. [ In other words, one end of the adjustment belt 75 overlaps with the folded front portion and is sewn together. As a result, a loop portion 75a is formed at one end of the adjusting belt 75. [ The infant belt 70 is inserted into the loop portion 75a. Therefore, the loop portion 75a of the regulating valve 75 constitutes a connection portion with the infant belt 70. [ The adjustment belt 75 is formed by forming a material commonly used in a seat belt of a vehicle, for example, polyester fiber, but is not limited thereto.

The adjustment belt 75 extends downward along the back face abutment portion 32 of the seat body 30 and is disposed in the vicinity of the lower end of the seat body 30, that is, on the rear face of the cylindrical portion 31b of the seat lower portion 31 And enters the inner space 35 from the opening 31c (see Fig. 7) formed in the lower portion. 9, the adjusting belt 75, which has entered the inner space 35 of the seat body 30, has belt supporting protrusions 33e projecting upwardly from the bottom surface of the inner space 35 And extends up to the vicinity of the lower surface of the seat plate 34 upward.

The adjustment belt 75 then extends parallel to the seat bottom surface 33 forward in the interior space 35 and then extends through the opening formed in the upper portion of the front surface of the cylindrical portion 31b of the seat lower portion 31 Out of the inner space 35 from the inner space 31d (see also Fig. 7). The adjustment belt 75 extends from the opening 31e formed in the front surface of the conical portion 31a of the seat lower portion 31 toward the upper side of the seat lower portion 31. [ The adjustment belt 75 extends forwardly of the seat body 30 through the belt adjuster 76 disposed at the rear of the operation table 55 of the operating mechanism provided on the front portion of the upper surface of the seat lower portion 31 1).

The belt adjuster 76 can lock and unlock the adjusting belt 75 by a known mechanism. When the adjustment belt 75 is locked by the belt adjuster 76, the adjustment belt 75 can not be moved in the forward and backward direction with respect to the belt adjuster 76. On the other hand, when the belt adjuster 76 is unlocked, the adjustment belt 75 can be moved in the front-rear direction with respect to the belt adjuster 76.

Next, adjustment of the length of the infant belt 70 will be described. Adjustment of the length of the infant belt 70 is performed in a state in which the belt adjuster 76 is unlocked. The length of the infant belt 70 extending forward of the back face abutment portion 32 may be increased by pulling the infant belt 70 extending forward of the back face abutment portion 32 forward or upward . Finally, the infant belt 70 can be pulled until the rear portion of the back face abutment portion 32 of the seat body 30 is completely free. At this time, the length of the infant belt 70 extending forward of the back face abutment portion 32 is the maximum, and the loop portion 75a of the adjustment belt 75 connected to the infant belt 70 is in the uppermost position ).

The uppermost position of the adjusting belt 75 is a position corresponding to a portion where the loop portion 75a is formed with the slot opening 60a of the head plate 60 through which the infant belt 70 is inserted. Therefore, the uppermost position of the adjusting belt 75 is changed according to the height adjusted by the height adjusting mechanism of the infant belt 70.

On the other hand, when it is desired to shorten the length of the infant belt 70 extending forward of the back face abutment portion 32, the portion (Fig. 1) of the adjustment belt 75 extending forward of the seat body 30 is moved forward It can be shortened by pulling. The regulating belt 75 can be pulled until the loop portion 75a of the regulating belt 75 connected to the infant belt 70 is disposed in the vicinity of the opening 31c of the seat lower portion 31. [ At this time, the length of the infant belt 70 extending forward of the back face abutment portion 32 is the shortest, and the loop portion 75a of the adjustment belt 75 connected to the infant belt 70 is at the lowermost position ).

The lowest position of the adjustment belt 75 is a position where the loop portion 75a is in the vicinity of the opening 31c of the seat lower portion 31. [ The lowest position of the adjusting belt 75 is fixed to the position of the opening 31c of the seat lower portion 31. [

The adjustment of the length of the infant belt 70 is performed by pulling a portion of the infant belt 70 extending forward of the back abutment portion 32 or the portion of the adjustment belt 75 extending forward of the seat body 30 The degree of tightening of the infant belt 70 according to the body shape of the infant can be adjusted.

In the child seat 1, the adjusting belt 75 extends to the opening 31c formed in the vicinity of the lower rear end of the seat body 30, that is, the lower side of the rear surface of the cylindrical portion 31b of the seat lower portion 31, (35). Then, the adjusting belt 75 is bent at an acute angle by the belt supporting projection 33e and extends upward. Therefore, the adjustment belt 75 can not necessarily pass through the shortest distance toward the belt adjuster 76, but also rotates the bypass path. Therefore, in the child seat 1, by arranging the lowermost position of the adjusting belt 75 in the vicinity of the lower end of the seat body 30 below the conventional child seat, The distance is secured longer. As a result, the range of the length adjustment of the infant belt 70 can be widened.

On the other hand, in order to smooth the adjustment of the adjustment belt 75, a pulley may be disposed at a portion in contact with the seat body 30, for example, an upper portion of the opening 31c. The adjustment belt 75 may pass through the outside of the seat body 30, that is, the lower surface of the seat body 30, without passing through the inside of the seat body 30. [

A back panel (harness panel) 68 is provided on the back surface of the back surface abutting portion 32 of the seat body 30. [ Fig. 25 is an enlarged perspective view of the back face of the child seat 1, and Fig. 26 is a perspective view of the back panel 68 of the child seat 1. Fig. The back panel 68 covers the extra infant belt 70 and the adjustment belt 75 disposed on the rear side of the back face abutment portion 32 of the seat body 30 so as not to interfere with each other, 32). The back panel 68 is provided so as not to expose a part of the moving part 61 and the engaging curved surface part 38 formed on both sides of the opening 36 of the back surface abutting part 32 of the seat body 30 Cover the role.

9, the back panel 68 is disposed so as to extend in the height direction in the widthwise central portion of the seat body 30 and is fitted to the seat body 30. As shown in Fig. The back panel 68 has a panel upper portion 68a and a lower panel portion 68b. The back panel 68 is integrally formed by injection molding from a resin material such as polypropylene so as to have flexibility. Particularly, the boundary portion between the panel upper portion 68a and the lower panel portion 68b of the back panel 68 is formed thinner than the other portions to form the hinge 68c which can be bent repeatedly without breakage. However, the back panel 68 may be omitted by omitting the hinge 68c and bending it by the flexibility. On the other hand, the infant belt 70 and the adjusting belt 75 are accommodated in the receiving space 68d (Fig. 9) between the seat body 30 and the back panel 68. Fig.

The upper end portion of the back panel 68 is engaged with the back surface abutting portion 32 of the seat body 30. By releasing this engagement, the upper portion 68a of the panel 68a is bent around the hinge 68c, And it becomes possible to open the receiving space 68d between the seat body 30 and the back panel 68. [ That is, the back panel 68 can be partly separated from the back abutment portion 32. [ The panel upper portion 68a of the back panel 68 may be bent so as to be easily opened when the extra portion of the infant belt 70 disposed on the back side of the seat body 30 is adjusted .

An opening 68e is formed in the panel upper portion 68a of the back panel 68 in the widthwise central portion in the height direction. The width of the opening 68e is larger than the width of the support portion 37 of the back surface abutting portion 32 of the seat body 30. [ Thus, the two openings 36 of the back abutment portion 32 are partially exposed through the opening 68e of the back panel 68. As a result, in the front-rear direction of the back face abutment portion 32 of the seat body 30, the two openings 36 of the back face abutment portion 32 and the head plate 60 The ventilation opening can be ensured through the ventilation opening 60g (Fig. Furthermore, by forming the opening 68e in the back panel 68, the moving part 61 can be operated with the back panel 68 provided. The first knob 62c of the rotation support member 62 and the second knob 64b of the second engagement member 64 can be accessed through the opening 68e of the back panel 68. [

27 to 29, the infant belt 70 will be described. Fig. 27 is a top view of a part of the infant belt 70, Fig. 28 is a side view of the infant belt 70 in Fig. 1, and Fig. 29 is a side view of the infant belt 70 in the inflected state of Fig.

The infant belt 70 used in the child sheet 1 is formed by overlapping a plurality of straps 71, for example, two straps 71a and 71b in the form of a belt, which are soluble. Each of the straps 71a and 71b is formed by forming a material, for example, polyester fiber, which is usually used for a seat belt of a vehicle. The straps 71a and 71b are sealed along a plurality of lines extending in the longitudinal direction, for example, two lines 71c.

When the infant belt 70 is bent, even after releasing the bending force, the bending state is maintained against gravity. That is, when the overlapped strap 71 is bent, the curvature radius of the curved inner strap 71a is smaller than the curvature radius of the curved outer strap 71b. This difference in the radius of curvature causes a difference in the circumferential direction of the bend between the outer surface of the opposing inner strap 71a and the inner surface of the outer strap 71b, So that misalignment occurs. Then, when the bending force is released, the infant belt 70 tries to return the stretched outer strap 71b to its original position, and the outer surface of the inner strap 71a and the inner surface of the outer strap are brought into contact with each other by frictional resistance . As a result, the deformed infant belt 70 maintains its shape against gravity even after releasing the deforming force.

Therefore, even after the infant belt 70 is released by the caregiver and the infant is lowered from the child seat, the infant belt 70 maintains its shape against gravity, so that there is no interference when the infant is seated thereafter. Further, since the straps 71a and 71b are formed of a flexible material such as polyester fiber, it is safe even if the infant or guardian contacts or collides with the infant belt 70. [

On the other hand, when the infant belt 70 is deformed, the straps 71a and 71b may be loosely sewn so that the deviation between the two straps 71a and 71b is greater. In addition, the infant belt 70 may be made to hold the shape by inserting a wire or metal plate or the like which can be held in a deformed shape, without depending on frictional resistance. The entirety of the infant belt 70 may be configured to retain the shape as described above, or may be partially formed. Furthermore, the crotch infant belt cover 77 (Fig. 1) may be wrapped around the portion of the infant belt 70 that contacts the infant. In such a case, the infant belt cover 77 may be configured to retain the shape as described above. Moreover, the infant belt 70 described above is applicable not only to the field of child seats but also to other fields where there is a demand for a belt that maintains its shape against gravity.

A method of installing the infant belt 70 on the seat body 30 will be described with reference to Figs. 7 and 30. Fig. 30 is a front view of the infant belt 70 of the child- Particularly, the infant belt 70 shown in Fig. 30 is provided with a fastening portion 78 (Fig. 1) for fastening the left and right infant belts 70 by the fastening mechanism at one end thereof, Is an infant belt (70) of a thigh belt. The infant belts 70 of the left and right thigh belts and the infant belts 70 of the thigh belts are the same as those of the seat body 30. The infant belt 70 extending from the back face abutting portion 32 of the seat body 30 and the infant belt 70 of the thigh belt are passed through the seat lower portion 31 downwardly as described above, 30). Therefore, as shown in Fig. 7, the seat lower portion 31 is provided with installation openings 31f as right and left front portions as rectangle through holes as a mounting portion for allowing the infant belt 70 to pass therethrough.

The front end of the strap 71 constituting the infant belt 70 passing through the seat lower portion 31 of the seat body 30 is overlapped and sealed with the folded front portion. As a result, a loop portion 72 formed in a loop shape is formed at the tip of the infant belt 70.

A circumferential fixing bar 73 is then inserted into the loop portion 72 of the infant belt 70 passing through the seat lower portion 31 of the seat body 30. [ The fixing rod 73 is formed by cutting a material such as a round bar from a metal such as carbon steel, but is not limited thereto. The fixing rod 73 is formed to be larger than the installation opening 31f of the seat lower portion 31 through which the infant belt 70 passes. That is, the length of the cylindrical fixing rod 73 is larger than the transverse dimension of the rectangular installation opening 31f, and the diameter of the fixing rod 73 is larger than the longitudinal dimension of the installation opening 31f. The infant belt 70 does not come out of the seat body 30 in a state in which the fixing rod 73 is inserted into the loop portion 72 of the infant belt 70. [ The fixing rod 73 inserted into the loupe 72 of the infant belt 70 is snapped and fixed by the engagement ring 31g formed in the vicinity of the installation opening 31f of the seat body 30. [

Since the infant belt 70 is securely fixed by the snap fit of the fixing rod 73, it does not interfere with the lower portion of the seat body 30. On the other hand, the fixing rod 73 may not be a cylindrical shape, that is, a circular cross-section if it is a rod. The fixing rods 73 may be configured to have, for example, a polygonal cross section such as a quadrangle and a hexagon.

By cutting the fixing rod 73 for fixing the infant belt 70 from the rod-shaped material, the raw material cost and the processing cost can be made very cheap. Further, since the fixing rods 73 are simple in structure, they are also excellent in strength. Furthermore, since the fastening rod 73 is used for fastening the infant belt 70 to the seat body 30 only by snap-fit, the installation work is also simple.

31 and 32, the cover mechanism 80 will be described. Fig. 31 is a perspective view of the upper part of the child seat 1, and Fig. 32 is an exploded view of the rotation mechanism 81 of the cover mechanism 80 of the child seat 1. Fig.

The cover mechanism 80 is provided on the head plate 60 so that the entire cover mechanism 80 performs sliding motion in accordance with the upward and downward sliding motion of the head plate 60. The cover mechanism 80 includes a rotation mechanism mechanism 81, a cover (not shown) covering the head of the infant, a fixed cover stay 82 as a framework for supporting the cover, and two first movable cover stay 83 and a second movable cover stay 84. The rotary gauge mechanism 81 includes a pair of staysupport members 85 provided at left and right bent portions of the head plate 60, a pair of first rotary gear member 86, a pair of second rotary gear members 87).

Both end portions of the fixed cover stay 82 are fixed to the left and right stay supporting members 85. Both end portions of the first movable cover stay 83 are installed to be rotatable stepwise through the first rotation gear member 86 with respect to the left and right stay support members 85, have. Both end portions of the second movable cover stay 84 are rotatable stepwise with respect to the left and right stay support members 85 through the second rotation gear member 87.

Therefore, the first movable cover stay 83 and the second movable cover stay 84 can be rotated stepwise forward or backward around the entire rotation axis extending in the transverse direction as a whole. Therefore, the cover can be expanded forwardly or folded backward. On the other hand, the first movable lid stay 83 has a greater rotation angle than the second movable lid stay 84, so that the second movable lid stay 83 can be deployed ahead of the second movable lid stay 84.

The first rotation gear mechanism member 86 has a first rotation end 86a formed in a circular shape. The second rotary gear member 87 has a second rotary end 87a formed in a circular shape having the same diameter as the first rotary end 86a. The stay support member 85 is rotatably supported by a rotation support portion formed in a circular shape having the same diameter as the first rotation end portion 86a of the first rotation lock member 86 and the second rotation end portion 87a of the second rotation lock member 87 85a. At the center of the rotation support portion 85a, elastic pillars 85b formed by U-shaped grooves are formed.

The first rotation end portion 86a of the first rotation lock member 86 is disposed on the outer side of the elastic column 85b of the stay support member 85 and the first rotation end portion 86a of the elastic support 85b of the stay support member 85 And a second rotation end 87a of the second rotation gear member 87 is disposed on the side surface. The elastic pillar 85b, the first rotary end 86a, and the second rotary end 87a are rotatably coupled to each other by the rotation pin 88 inserted therein.

Two recessed concave portions 86b having a concave curved surface are formed on a circumference concentric with the center of rotation of the first rotary end portion 86a of the first rotary element 86. Similarly, two recessed concave portions (not shown) having a concave curved surface are formed on the circumference concentric with the center of rotation of the second rotary end portion 87a of the second rotary gear member 87. The outer circumferential surface of the rotation support portion 85a of the opposing staysupporting member 85 is formed with a circular arc concentric with the rotation center of the first rotation axis member 86 and a rotation range of the first rotation axis member 86 A plurality of convex curved convex portions 85c (not shown) engaging with the concave concave portions 86b are formed at positions corresponding to the concave concave portions 86b extending across the concave concave portions 86b. Likewise, the inner surface of the rotation support portion 85a of the opposing staysupporting member 85 is formed with an annular shape concentric with the rotation center of the second rotation gear member 87 and a rotation range of the second rotation gear member 87 A plurality of convex curved convex portions 85c engaged with the concave concave portions 87b are formed at positions corresponding to the concave concave portions 87b extending across the concave portions 87b.

When the first movable cover stay 83 is slightly rotated relative to the stay support member 85 in order to expand or collapse the cover, the engagement recess 86b of the first rotation locker member 86 and the stay support member 85 The engagement with the engaging convex portion 85c of the engaging portion 85 is released once. That is, the locking convex portion 85c of the stay support member 85 is disposed between the adjacent locking concave portions 86b of the first rotation locker member 86 and the rotation supporting portion 85a of the stay supporting member 85, And the first rotation end portion 86a of the first rotation fixing member 86 are slightly spaced. In this state, by the elastic force of the elastic column 85b of the stay support member 85 connected to the first rotation end portion 86a of the first rotation axis member 86, the rotation support portion 85a of the stay support member 85 85a and the first rotation end portion 86a of the first rotation fixing member 86 are approached.

Then, when the first movable cover stay 83 is further rotated relative to the stay support member 85, the engagement recessed portion 86b of the first rotation locker member 86 is rotated in the direction of the rotation of the adjacent staysupporting member 85 in the rotation direction, And engages with the engaging convex portion 85c of the engaging portion 85c. The biasing force of the elastic column 85b of the stay support member 85 also contributes to such a stable engagement. On the other hand, the state in which the engagement between the engagement recess 86b of the first rotation gear mechanism member 86 and the engagement projection 85c of the stay support member 85 is released is in an unstable state. Therefore, in the rotation operation of the first movable cover stay 83, the first rotation gear member 86 is rotated in the direction in which the engaging convex portion 85c of the stay supporting member 85, So as to be stabilized so as to be staggered in a stepwise rotation position, that is, in a stepwise rotation position.

On the other hand, the rotation of the second movable cover stay 84 with respect to the stay support member 85 is the same as the rotation of the first movable cover stay 83 with respect to the stay support member 85 described above. Therefore, in the rotation operation of the second movable cover stay 84, the second rotation gear member 87 is engaged with the locking projection 85c of the staysupporting member 85, which is adjacent in the rotational direction, It is possible to rotate stepwise so as to be stabilized.

Since the lid mechanism 80 described above can slide in the vertical direction together with the head plate 60, the height can be adjusted by a simple operation in accordance with the seat height of the infant to be seated. The engaging concave portion 86b of the first rotating gear member 86 and the engaging concave portion of the second rotating gear member 87 are formed in a concave curved shape and the engaging convex portion 86b of the stator supporting member 85, Since the portion 85c is formed in a convex curved shape, it can be very smoothly engaged and disengaged. Therefore, although a simple mechanism having a small number of parts is used, a rotary mechanism supporting mechanism can be smoothly rotated and locked without requiring lubricating oil.

Either one of the two first movable cover stays 83 and the second movable cover stays 84 may be omitted. Accordingly, when the child seat is made into a product, the difference between the product models can be simply expressed. It is also possible to form a locking convex portion on the locking recessed portion 86b of the first rotation gear member 86 and the second rotation locking member 87 and to form a locking recessed portion on the side of the stay supporting member 85. [ Further, the number of the engaging convex portion and the engaging concave portion can be arbitrarily selected. Furthermore, the engaging convex portion and the engaging concave portion may be in any shape within a range capable of engaging and disengaging.

33 to 35, the positioning mechanism 110 of the support leg 100 will be described. 33 is a perspective view of the positioning mechanism 110 of the support leg 100 of the child seat 1, FIG. 34 is a vertical sectional view on the left side of the center of the positioning mechanism 110 of FIG. 33, 33 is a longitudinal sectional view passing through the center of the positioning mechanism 110. Fig. On the other hand, in order to clarify the internal structure of the positioning mechanism 110, FIG. 33 shows only some outlines of some members.

2 and 3, the support leg 100 extends to the bottom surface of the vehicle supporting the seat of the vehicle on which the child seat body 10 is mounted, and the child seat body 10, i.e., the pedestal 20, As shown in Fig. The support leg 100 has a leg portion 101 that can be stretched or shrunk in the longitudinal direction and a positioning mechanism 110 that is provided on the leg portion 101 and determines the length of the leg portion 101.

The leg portion 101 has a first tubular member 102 provided on the pedestal 20 and a second tubular member 103 disposed on the lower side of the first tubular member 102. The upper portion of the second tubular member 103 is inserted into the lower portion of the first tubular member 102 and the length of the leg 101 can be adjusted by adjusting the insertion amount. The first tubular member 102 is formed with one through hole 102a into which a fixing member 117 described later is inserted. The second tubular member 103 is provided with a plurality of through holes 103a which are arranged along the longitudinal direction and into which the fixing member 117 is selectively inserted (Fig. 2).

The positioning mechanism 110 includes a housing 113 provided below the first tubular member 102 and having a first housing half body 111 and a second housing half body 112, (114) and a leg operating lever (115). The first housing half 111 is installed from the front of the first tubular member 102 and the second housing half 112 is installed from the rear of the first tubular member 102. That is, the first housing half 111 and the second housing half 112 are fitted so as to sandwich the first tubular member 102 therebetween, and are installed to the first tubular member 102 .

The housing 113 on the side of the first housing half 111 is provided with a plurality of protrusions 101 that are close to the direction perpendicular to the longitudinal direction of the leg 101, A slider 114 is disposed so as to be slidable between a direction in which the slider 114 slides. In other words, a plurality of guide walls 111a for guiding the sliding motion of the slider 114 are formed in the housing 113 on the first housing half 111 side. A hollow boss portion 111c protruding rearward is formed in the inner wall 111b of the front surface of the first housing half 111 and a coil spring 116 is disposed around the boss portion 111c.

A concave portion 114a for receiving the boss portion 111c of the first housing half 111 and the coil spring 116 is formed on the upper portion of the slider 114. [ In the recess 114a of the slider 114, a column-shaped guide protrusion 114b protruding forward is formed (Fig. 35). That is, the slider 114 accommodates the boss portion 111c of the first housing half 111 and the coil spring 116 in the concave portion 114a on the upper portion thereof, and the guide protrusion 114b of the slider 114 Is inserted into the hollow boss portion 111c. In addition, protrusions 114c are formed on the left and right of the upper portion of the slider 114 (Fig. 34). Further, a separate fixing member 117 protruding rearward is provided in the lower portion of the slider 114 (Fig. 35). The fixing member 117 may be integrally formed with the slider 114.

An operation tab 115a is formed as an operation portion disposed at the outside of the housing at one end of the leg portion operation lever 115. The operation tab 115a is disposed at the other end of the leg portion operation lever 115 inside the housing 113, And a pair of connection portions 115b connected to the left and right protrusions 114c of the base plate 114 are formed. Each of the connecting portions 115b has an elongated hole 115c formed therein and the protrusion 114c of the corresponding slider 114 is disposed therein. A cylindrical rotation support projection 115d is formed on the left and right sides of the middle portion of the leg portion operation lever 115, respectively. The leg manipulation lever 115 is provided in the housing 113 by the left and right rotation support protrusions 115d so as to be rotatable about a rotation axis extending in the transverse direction.

The slider 114 is urged in the direction of the leg 101 by the coil spring 116 while the positioning mechanism 110 is provided on the leg 101. [ The fixing member 117 is inserted into the through hole 102a of the first tubular member 102 and the through hole 130a of the second tubular member 103 so that the first tubular member The sliding movement of the second tubular member 103 relative to the second tubular member 103 is restricted. On the other hand, the first tubular member 102, the second tubular member 103, and the fixing member 117 are formed of metal such as carbon steel, but are not limited thereto.

When the length of the leg portion 101 is adjusted, the operation tab 115a of the leg portion operation lever 115 is first pulled upward, that is, . In this operation, for example, the first tubular member 102 above the positioning mechanism 110 is held by the right hand extending from the upper side to the lower side, and the operation tab 115a is straddled from below with the thumb of the right hand. So as to raise it upward. Further, when the operation of rotating the operation tab 115a of the leg operation lever 115 is continued, the operation tab 115a moves in the direction of the leg 101 by the rotational motion.

The connection portion 115b at the other end of the leg portion operation lever 115 rotates in the direction away from the leg portion 101 in accordance with the rotational movement of the operation tab 115a. The slider 114 slides along the guiding wall 111a in a direction away from the leg portion 101 by the rotational movement of the connecting portion 115b. That is, the connecting portion 115b of the leg-operating lever 115 rotates while the slider 114 is restricted in the sliding direction by the guide wall 111a. However, since the left and right projections 114c of the slider 114 move in the long hole 115c in accordance with the rotation position of the corresponding coupling portion 115b, the rotation of the coupling portion 115b is not hindered, The sliding movement of the slider 114 is converted into the sliding motion of the slider 114b. In other words, the shape of the elongated hole 115c of the connecting portion 115b is determined so that the movement of such movement is smoothly performed.

The slider 114 is slid in the direction away from the leg portion 101 so that the fixing member 117 integrally provided with the slider 114 is inserted into the through hole 102a of the first tubular member 102, The length of the leg portion 101 can be adjusted by exiting from the through hole 103a of the tubular member 103. [ At this time, the right hand holds the first tubular member 102, and the left hand can be freely used.

The leg 101 is adjusted to a desired length by sliding the second tubular member 103 with respect to the first tubular member 102 by using the left hand, The through hole 102a of the first tubular member 102 and the through hole 103a of the second tubular member 103 are aligned. In this state, when the force applied to the operation tab 115a of the leg operation lever 115 is released, the slider 114 slides in the direction of the leg 101 by the biasing force of the coil spring 116 Exercise. As a result, the fixing member 117 of the leg manipulation lever 115 is inserted into the through hole 102a of the first tubular member 102 and the through hole 103a of the second tubular member 103 The operation tab 115a of the leg portion operation lever 115 returns to its original position. That is, the slider 114 can be said to be slidable between a fixed position for fixing the extension and retraction of the leg 101 and a releasing position for releasing the fixing.

When the operation tab 115a rotates the leg operation lever 115 in the direction in which the operation tab 115a approaches the leg portion 101, And moves the slider 114 to the release position. On the other hand, when the operation tab 115a is rotated in the direction away from the leg portion 101, the connection portion 115b moves in the direction approaching the leg portion 101, To a fixed position.

The positioning mechanism 110 described above can freely use the other hand since the positioning mechanism 110 can hold one side of the leg portion 101 by one hand and perform sliding movement to the releasing position of the slider 114, The length of the leg portion 101 can be adjusted by a simple operation while holding the other side of the portion 101. [ In order to adjust the length of the leg portion 101, first, the operation tab 115a of the leg portion operation lever 115 must be operated in the upward direction. Even if the operation tab 115a is stepped on, the slider 114 will not unintentionally be in the release position.

On the other hand, the material of the main parts has been referred to as appropriate, but the material of the parts not mentioned is mainly formed by integrally molding a resin material such as polypropylene or polyacetal. However, other materials or manufacturing methods may be employed.

Although the present invention has been described in detail based on specific embodiments, those skilled in the art can make various changes and modifications without departing from the scope and spirit of the present invention.

1: Child seat
10: Child seat body
20: Stand
30: Seat body
A: Support
B: Support
C: Support point

Claims (3)

And a seat body supported on the pedestal so as to be slidable with respect to the pedestal,
Wherein the seat body is in contact with the pedestal in at least two of a front portion, a rear portion, and a lower portion below the front portion and the rear portion, The movement of the child seat is regulated. The method according to claim 1,
Wherein the seat body is supported on the pedestal so as to be capable of changing between a plurality of reclining positions at different inclination angles and is rotatably supported on the pedestal in each of the reclining positions,
Said pedestal having an engaging portion,
The seat body has a portion to be engaged with the engagement portion,
Wherein the engaging portion is formed in an annular or disc shape around a rotation axis of the seat body,
The front portion abutting the pedestal is a front portion of the engaging portion,
Wherein the rear portion or the downward portion abutting the pedestal is a portion of the engaged portion that is engaged with the engagement portion. 3. The method of claim 2,
Wherein the engaged portion is an upper engaged portion disposed above the lower engaged portion disposed at the lower end of the seat body and above the lower engaged portion.

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