KR102214154B1 - Child Seat - Google Patents

Abstract

The present invention provides a child seat capable of reclining a seat body regardless of a rotation position of the seat body relative to a pedestal with a simple structure. The child seat 1 includes a pedestal 20 having engaging portions 40, 44, and a seat body 30 having engaging portions 41, 43 engaging with the engaging portions 40, 44, and the sheet The main body 30 is supported on the pedestal 20 so as to be changeable between a plurality of reclining positions of different inclination angles, and is supported on the pedestal 20 so as to be rotatable at each of the reclining positions, and the seat body ( When the reclining position of 30) is changed and the seat body 30 is rotated, the engagement between the engaging portions 40 and 44 and the engaging portions 41 and 43 is maintained.

Description

Child Seat{Child Seat}

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

As a child seat used when carrying infants and toddlers in a passenger car, etc., a child seat having a pedestal installed on a seat of a vehicle (for example, a vehicle) and a seat body supported on the pedestal so as to be slidable is known (Patent Document 1). ).

In the child seat described in Patent Document 1, the seat body has a front-facing state and a rear-facing state in which infants and toddlers seated face the front. The forward and rearward states of the seat body can be selected by rotating the seat body with respect to the pedestal. Further, the seat body can be reclined by changing the inclination angle of the seat body with respect to the pedestal only when it is in the omnidirectional state.

Patent Document 1: Japanese Laid-Open Patent Publication No. 2010-012895

On the other hand, even when the seat body is not in an omnidirectional state, for example, in a rearward state, there is a demand for reclining. In addition, it is preferable that the reclining mechanism and the rotating mechanism of the seat body relative to the pedestal are simpler mechanisms.

An object of the present invention is to provide a child seat capable of reclining a seat main body with a simple mechanism, regardless of the rotational position of the seat main body with respect to a pedestal.

According to an embodiment of the present invention, a seat body having a pedestal having an engaging portion and a portion to be engaged with the engaging portion is provided, and the seat body can change between a plurality of reclining positions at different inclination angles. It is supported on the pedestal and is supported on the pedestal so as to be rotatable at each of the reclining positions, and between the engaging portion and the engaged portion when the reclining position of the seat body is changed and the seat body is rotated. There is provided a child seat characterized in that the engagement is maintained.

Further, according to another embodiment of the present invention, there is provided a child seat, wherein the engaging portion is formed in a ring shape or a disk shape around a rotation axis of the seat body.

Further, according to another embodiment of the present invention, there is provided a child seat, wherein the engaged portion is a lower engaged portion disposed at a lower end of the seat body and an upper engaged portion disposed above the lower engaged portion. .

Further, according to another embodiment of the present invention, there is provided a child seat, wherein the engaging portion is a connecting member connecting the upper engaging portion and the lower engaging portion.

Further, according to another embodiment of the present invention, there is provided a child seat, wherein the engaging portion moves in a front-rear direction following a change in the reclining position of the seat body.

Further, according to another embodiment of the present invention, there is provided a child seat, wherein the engaging portion and the engaging portion are engaged at the rear of the seat body.

Further, according to another embodiment of the present invention, the seat body includes a reclining locking member that protrudes toward the pedestal so as to be able to advance and retreat and engages or releases the engagement with respect to the pedestal, and the pedestal protrudes toward the pedestal so as to advance and retreat It has a rotation locking member that engages or disengages with respect to, when the reclining position of the seat body is changed, the reclining locking member is disengaged from the pedestal, and when the seat body is rotated, the rotation locking member is released. There is provided a child seat characterized in that the engagement with respect to the pedestal is released.

In addition, according to another embodiment of the present invention, there is provided a child seat, further comprising an operating mechanism for preventing simultaneous change of the reclining position of the seat body and rotation of the seat body.

Further, according to another embodiment of the present invention, there is further provided an operation mechanism for preventing simultaneous change of the reclining position of the seat body and rotation of the seat body, wherein the operation mechanism comprises: the reclining locking member A first operation unit for operating engagement and release of the base with respect to the base, and a second operation unit for operating the engagement and release of the rotation locking member with respect to the base, the operating mechanism is the reclining by the first operation unit When the locking member is disengaged, the rotation locking member is prevented from being disengaged by the second operation unit. When the rotation locking member is disengaged by the second operation unit, the first operation unit may A child seat is provided, characterized in that it prevents disengagement of the reclining locking member.

According to the present invention, with a simple structure, it has a common effect that the seat body can be reclined regardless of the rotation position of the seat body relative to the pedestal.

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

1 is a perspective view schematically showing an entire child seat according to an embodiment of the present invention.
2 is a perspective view of the child seat in an omnidirectional state.
3 is a perspective view of a child seat in a rearward state.
4 is a perspective view of the pedestal of the child seat.
5 is a top view of the pedestal of FIG. 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 seat body of the child seat.
8 is a perspective view of an engaging portion and an engaging portion of a child seat.
9 is a longitudinal sectional view passing through the center of the child seat in the transverse direction.
Fig. 10 is an enlarged longitudinal cross-sectional view of the child seat left of the center in the horizontal direction.
11 is an enlarged perspective view of the inside of the seat body of the child seat.
Fig. 12 is a diagram explaining a reclining mechanism and a rotating mechanism of a child seat.
13 is another view for explaining a reclining mechanism and a rotating mechanism of the child seat.
14 is a diagram for explaining a reclining operation of a child seat.
15 is a diagram for explaining a rotational operation of a child seat.
It is a figure explaining the operation mechanism of a child seat.
Fig. 17 is another diagram explaining the operation mechanism of the child seat.
Fig. 18 is another diagram explaining the operation mechanism of the child seat.
19 is an enlarged perspective view of the rear surface of the child seat.
Fig. 20 is an exploded and assembled view of a part of the height adjustment mechanism of the infant belt of the child seat.
Fig. 21 is a view for explaining a height adjustment mechanism of an infant belt of a child seat.
22 is another view for explaining the height adjustment mechanism of the infant belt of the child seat.
Fig. 23 is a perspective view showing an adjustment belt of the highest value of a child seat.
24 is a perspective view showing an adjustment belt at the lowest 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 rear panel of the child seat.
27 is a top view of a part of the infant belt.
28 is a side view of the infant belt of FIG. 1 in an elongated state.
29 is a side view of the infant belt of FIG. 1 in a curved state.
30 is a front view of an infant belt of a child seat.
31 is a perspective view of the upper portion of the child seat.
Fig. 32 is an exploded assembly view of the rotation locking mechanism of the lid mechanism of the child seat.
33 is a perspective view of a support leg positioning mechanism of a child seat.
Fig. 34 is a longitudinal sectional view to the left of the center of the positioning mechanism of Fig. 33;
Fig. 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 given a common reference numeral.

1 is a perspective view schematically showing the entire child seat 1 according to an embodiment of the present invention, FIG. 2 is a perspective view of the child seat 1 in an omnidirectional state, and FIG. 3 is a rear direction of the child seat 1 It is a perspective view of the state.

The child seat 1 has a child seat body 10 and a support leg 100 that is detachably attached to the child seat body 10. The child seat main body 10 has a pedestal 20 installed on a seat of a vehicle (eg, a vehicle) and a seat main body 30 supported on the pedestal 20 so as to be slidable. On the other hand, the seat body 30 including the seating surface of the child seat 1, etc., is covered with a cushioning cover 11, as shown in FIG. 1, but in other drawings, the structure is clear. It is omitted for the sake of simplicity.

In the present specification, in the description of each constituent member, with the child seat 1 installed on the vehicle seat, the front of the vehicle in the traveling direction is defined as'front' and the opposite side is defined as'back'. In addition, the state of the sheet main body 30 shown in FIGS. 1 and 2 is referred to as the'omnidirectional state' of the seat main body 30, and the state of the seat main body 30 shown in FIG. It is referred to as'backward state'. In particular, when describing the seat body 30, the front viewed from the seated infant and child is referred to as'front', and the opposite side is sometimes referred to as'after'. Moreover, the'right' direction and the'left' direction are determined for the'front' direction.

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

The pedestal 20 will be described with reference to FIGS. 4 and 5. 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. The pedestal 20 is formed entirely in a hollow shape, 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 rear portion of the vehicle seat. ). The pedestal 20 is formed by molding hard plastic, for example, polypropylene, for each of the upper and lower half or the left and right half, and fitting them, but is not limited thereto.

On the upper surface of the base portion 21, in order to accommodate the lower portion of the sheet main body 30, a main body receiving opening 23, which is a substantially elliptical opening extending in the front-rear direction, is formed. Around the main body receiving opening 23, a support wall 23a extending downward by a predetermined length is formed in an annular shape along the shape of the main body receiving opening 23. On the upper surface of the base portion 21 around the main body receiving opening 23, a pedestal support surface 24 that is an upper surface of the base portion 21 and which gently inclines toward the center is formed. On the surface of the pedestal support surface 24, a plurality of convex curved protrusions 24a arranged in alignment are formed. Among the main body receiving openings 23, that is, inside of the bottom surface of the base part 21, a cylindrical curved surface 25 protruding from the bottom surface is formed, and through the main body receiving opening 23 on the upper surface of the base part 21 It is exposed.

The cylindrical curved surface 25 is a concave curved surface in which a central axis is formed of a portion of a cylindrical surface extending in the horizontal direction, that is, in the horizontal direction, and the rear end side is disposed above the front end (FIG. 9). In the cylindrical curved surface 25, on the center line H passing through the center of the child sheet 1 in the transverse direction, three locking holes 25a are aligned in the front-rear direction and formed at equal intervals. Further, in the cylindrical curved surface 25, a pair of locking grooves 25b extending in the front-rear direction are formed on the left and right parallel lines offset in the horizontal direction from the center line H.

A pair of elongated guide grooves 22b that penetrate toward the inner space and extend in the front-rear direction are formed on the inclined surface 22a which is inclined toward the front formed in the middle of the standing part 22 of the pedestal 20 have. The guide groove 22b guides the sliding movement of the upper connection rod 43 in the front-rear direction and regulates the movement in the lateral direction, as will be described later. Further, a rectangular opening 26 is formed in the upper front surface 22c of the standing portion 22 of the pedestal 20 (Fig. 3). Belt engaging projections 27 protruding in the transverse direction are formed at the left and right rear portions of the base portion 21 of the pedestal 20, that is, the left and right lower portions of the standing portion 22 of the pedestal 20, as described later. Has been.

The sheet body 30 will be described with reference to FIGS. 6 and 7. 6 is an exploded perspective view of a part of the child seat 1, and FIG. 7 is a perspective view of the bottom surface of the seat body 30 of the child seat 1.

The seat body 30 has a lower seat 31 and a rear abutting portion 32 extending upward from the rear portion of the lower seat 31. The sheet body 30 is formed by integrally molding hard plastic, for example polypropylene, but is not limited thereto. The outer appearance of the seat lower portion 31 is formed of a truncated cone portion 31a having a thin tip toward the bottom and a cylindrical portion 31b having a smaller diameter extending downward from the lower surface of the truncated cone portion 31a. The lower end of the cylindrical portion 31b is closed by a circular sheet bottom surface 33. A circular opening 33a is formed in the center of the sheet bottom surface 33, and on a line offset from the center of the circular opening 33a of the sheet bottom surface 33 to the left, two circular openings 33b Is formed.

On the front surface of the rear abutting portion 32, a head plate 60 is installed in which the left and right sides are bent toward the front to fulfill the function of a head rest (Fig. 2). The position of the head plate 60 can be adjusted by sliding in the vertical direction with respect to the rear abutting portion 32, as described later. On the other hand, the head plate 60 is formed by integrally molding hard plastic, such as polypropylene, but is not limited thereto.

6, 8, 9 and 10, the engaging portion and the engaging portion of the child seat 1 will be described. 8 is a perspective view of an engaging portion and a portion to be engaged of the child seat 1, FIG. 9 is a longitudinal sectional view passing through the center of the child seat 1 in the horizontal direction (left and right directions), and FIG. 10 is a child seat 1 It is an enlarged longitudinal sectional view to the left of the center in the horizontal direction

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

The other end 41b (FIG. 10) of the lower connecting rod 41 is connected to the lower part of the rod connecting member 42. The rod connecting member 42 is formed by integrally molding polyacetal or the like in a shape suitable for a corner portion of the rear upper portion of the inner space of the base portion 21, but is not limited thereto. As shown in Fig. 9, in a state in which the lower engaged guide member 40 is disposed at the rearmost position by a reclining mechanism to be described later, the rod connecting member 42 abuts against the inner wall of the base portion 21, and the inner space It fits into the corner of the upper rear of the. As a result, when the lower engaged guide member 40 is moved to the rearmost position by the reclining mechanism, that is, when the seat body 30 is reclined in a more upright state, the rod connecting member 42 is It abuts against the inner wall of (21), and serves as a cushioning material that absorbs the shock upon movement of the seat body 30. Further, the lower connection rod 41 is formed to be bent along the shape of the inner wall 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 as engaging portions to the left and right of the upper portion of the rod connecting member 42. Each of the upper connection rods 43 protrudes to the outside through a guide groove 22b formed in the rising portion 22 of the pedestal 20 (FIG. 10). The portion of the upper connecting rod 43 protruding to the outside is formed of a straight portion extending upward, a semicircular portion curved toward the front from the tip of the straight portion, and a straight portion extending slightly downward from the tip of the semicircular portion. . That is, the portion of the upper connection rod 43 protruding to the outside has a hook shape such that the letter'J' is vertically reversed.

On the outer conical surface of the truncated cone portion 31a of the seat body 30, an annular upper engaging guide member 44 is provided as an engaging portion. The upper engaging guide member 44 has a cylindrical guide wall 44a extending upward along its annular shape. As shown in Fig. 8, each tip end of the upper connecting rod 43 is engaged from above to the guide wall 44a of the upper guide member 44 to be engaged. Further, a collision support surface 44b, which is a convex curved surface formed in an annular shape, is formed below the outer peripheral surface of the upper engaging guide member 44. The upper engaging guide member 44 is formed by integrally molding hard plastic, such as polypropylene, but is not limited thereto.

On the other hand, the upper to-be-engaged guide member 44 is a reinforcing member formed of a metal such as carbon steel in order to reinforce the guide wall 44a in the engagement between the upper connection rod 43 and the guide wall 44a ( 44c). The reinforcing member 44c may be disposed over the entire circumference of the guide wall 44a, or may be disposed so as to engage particularly in the forward and rearward states of the seat body 30 as shown in FIG. 6. .

The upper engaging guide member 44 is covered from above by a ring-shaped cover member 45 so that the guide wall 44a is not exposed to the outside (Fig. 6). The upper to-be-engaged guide member 44 is rotatable while being covered by the cover member 45. In the cover member 45, through the cover member 45, each tip of the upper connection rod 43 may be engaged with the guide wall 44a of the upper guide member 44 to be engaged. 45a) is formed. In addition, a protective cover 46 is covered with respect to the upper connection rod 43 from above so that the upper connection rod 43 is not exposed to the outside. The protective cover 46 is installed on the cover member 45. On the other hand, in FIG. 10, the cover member 45 and the protective cover 46 are omitted and drawn.

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

6, 9, 10, and 11, the internal mechanism related to the reclining mechanism and the rotating mechanism will be described in detail. 11 is an enlarged perspective view of the inside of the seat body 30 of the child seat 1. The upper part of the lower seat 31 of the seat body 30 is covered with a seat plate 34 forming a seat part for infants and toddlers to sit, and the seat plate 34 constitutes an inner space 35 below the seat plate. .

In the center of the lower engaged guide member 40 corresponding to the circular opening 33a in the center of the seat bottom surface 33 of the seat body 30, a circular opening 40b having the same diameter is formed (Fig. 6). . In the circular opening 33a of the seat bottom surface 33 and the circular opening 40b of the lower engaged guide member 40, the reclining locking pin 50 having a cylindrical shape from the inner space 35 side of the seat body 30 ) Is inserted. The tip of the reclining locking pin 50 protruding downward from the lower surface of the lower engaging guide member 40 is inserted into one of the locking holes 25a formed in the cylindrical curved surface 25 of the pedestal 20 to engage. .

Moreover, on a line offset from the center of the circular opening 40b of the lower engaging guide member 40 corresponding to the two circular openings 33b of the bottom surface 33 of the sheet body 30 to the left , Two circular openings 40c are formed (Fig. 6). In the two circular openings 33b of the seat bottom surface 33 and the two circular openings 40c of the lower guide member 40 to be engaged, a U-shaped rotation from the inner space 35 side of the seat body 30 Each tip of the locking pin 51 is inserted. Each tip of the rotation locking pin 51 protruding downward from the lower surface of the lower engaging guide member 40 is inserted into one of the locking grooves 25b formed in the cylindrical curved surface 25 of the pedestal 20 to engage. .

For this reason, the offset amount of the line aligned by the two circular openings 33b from the center of the circular opening 33a of the seat bottom surface 33 and 2 from the center of the circular opening 40b of the lower guide member 40 to be engaged The offset amount of the line aligned by the four circular openings 40c and the offset amount from the center line H of the locking groove 25b formed on the cylindrical curved surface 25 of the pedestal 20 are set equally.

In particular, referring to FIG. 11, a first guide protruding upward and having a rectangular cross section on the inner side surface of the bottom surface 33 of the sheet body 30, that is, the bottom surface of the inner space 35 The protrusion 33c and the second guide protrusion 33d are formed. The first guide protrusion 33c is disposed on the right side, and the second guide protrusion 33d is disposed on the left side. The first guide protrusion 33c and the second guide protrusion 33d are slightly thinner toward the top.

In the first guide protrusion 33c, a first pin holding member 52 is installed so as to be capable of sliding in the vertical direction, and the second pin holding member 53 slides in the vertical direction in the second guide protrusion 33d. It is installed to enable movement. That is, a complementary rectangular opening is formed in the first pin holding member 52 to accommodate the first guide protrusion 33c, and the second pin holding member 53 is provided with a second guide protrusion 33d. Complementary rectangular openings are formed. The first pin holding member 52 holds the reclining lock pin 50 described above, and the second pin holding member 53 holds the rotation lock pin 51 described above. The first pin holding member 52 is pushed downward by the coil spring 54a, and the second pin holding member 53 is pushed downward by the coil spring 54b.

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

When the reclining operation lever 55a is pulled forward, the first pin holding member 52 slides upward along the first guide protrusion 33c through the operation rod 56a. Accordingly, the reclining locking pin 50 held by the first pin holding member 52 also moves upward, and the engagement of the front end of the reclining locking pin 50 and the locking hole 25a is released. As a result, the seat body 30 becomes a state in which the reclining operation is possible.

The reclining operating lever 55a is urged to the rear position through the operating rod 56a by the biasing force of the coil spring 54a that urges the first pin holding member 52 downward. Therefore, when the reclining operation lever 55a is released after the reclining operation, the reclining operation lever 55a returns to the rear position by the auxiliary force of the coil spring 54a, and the tip of the reclining locking pin 50 is also locked. It is inserted back into the hole 25a.

On the other hand, when the rotation operation lever 55b is pulled forward, the second pin holding member 53 slides upward along the second guide protrusion 33d through the operation rod 56b. Accordingly, the rotation locking pin 51 held by the second pin holding member 53 is also moved upward, so that the engagement between each tip end of the rotation locking pin 51 and the locking groove 25b is released. As a result, the seat body 30 becomes a state in which the rotation operation is possible.

The rotation operation lever 55b is urged to the rear position through the operation rod 56b by the biasing force of the coil spring 54b which urges the second pin holding 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 auxiliary force of the coil spring 54b, and each tip view of the rotation lock pin 51 It is reinserted into the locking groove 25b.

12 and 13, the reclining mechanism and the rotating mechanism of the child seat 1 will be described. FIG. 12 is a diagram illustrating a reclining mechanism and a rotating mechanism of the child seat 1, and FIG. 13 is another diagram illustrating the reclining mechanism and a rotating mechanism of the child seat 1. In Figs. 12 and 13, each configuration is schematically shown.

As described above, the seat body 30 includes a lower guide member 40 to be engaged, an upper guide member 44 to be engaged, and a cover member 45. In addition, the lower connecting rod 41 and the upper connecting rod 43 connected through the rod connecting member 42 are connected while engaging between the lower guide member 40 and the upper guide member 44 to be engaged. . 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 attached to the inner surface of the inclined surface 22a of the pedestal 20. By abutting, the sliding movement of the lower connecting rod 41 and the upper connecting rod 43 in the front-rear direction is guided, and movement in the transverse direction is regulated.

In Fig. 12, the seat body 30 is in a reclining position corresponding to the rear locking hole 25a among the three locking holes 25a. That is, the seat body 30 engages the reclining locking pin 50 protruding downward from the seat body 30 through the lower engaging guide member 40 with the locking hole 25a, thereby fixing the reclining position.

In addition, the outer surface of the lower seat 31 of the seat body 30 is supported by the support support surface 24 of the support 20 so as to withstand the load when the infant is seated. The lower engaging guide member 40 and the cylindrical curved surface 25 of the pedestal 20 are arranged very slightly apart. The outer surface of the lower seat 31 slides on and is supported on the pedestal support surface 24 of the pedestal 20 during a reclining operation and a rotation operation of the seat body 30. Further, the lower engaged guide member 40 is very slightly separated from the cylindrical curved surface 25 of the pedestal 20 during the reclining operation and the rotation operation of the seat body 30. In other words, the outer surface of the seat body 30 is determined in size or shape so that it always abuts and is supported with the pedestal support surface 24, and the lower guide member 40 is a cylindrical curved surface 25 ) And the size and shape are determined so that it is slightly separated from each other.

The seat body 30 contacts the convex curved protrusion 24a formed on the pedestal support surface 24 of the pedestal 20 in a point shape, thereby reducing frictional resistance and allowing a smooth sliding motion.

In this state, by releasing the engagement of the rotation locking pin 51 and the locking groove 25b (not shown), the seat body 30 around the rotation axis R approximately coinciding with the central axis of the reclining locking pin 50 Rotary movement becomes possible. 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 engaging guide member 40 installed on the seat body 30 connects the engaging hook 41a of the lower connecting rod 41 to a ring-shaped engaging groove ( It rotates together with the seat body 30 in a state engaged with 40a). At this time, since the movement in the transverse direction is restricted as described above, the lower connection rod 41 is relatively stopped with respect to the pedestal 20. Accordingly, the engaging hook 41a of the lower connecting rod 41 relatively slides while engaging the inside of the annular engaging groove 40a of the lower engaging guide member 40.

In addition, when the seat body 30 is rotated with respect to the pedestal 20, the upper engaging guide member 44 installed on the seat body 30 connects each tip of the upper connecting rod 43 to a cylindrical guide wall ( It rotates together with the seat body 30 in a state always engaged with 44a). At this time, the upper connection rod 43 is relatively stopped with respect to the pedestal 20. Accordingly, each tip end of the upper connection rod 43 is always engaged and relatively sliding motion along the cylindrical guide wall 44a of the upper engaged guide member 44.

The cover member 45 covering the upper engaging guide member 44 and the protective cover 46 of the upper connecting rod 43 are relatively stopped with respect to the pedestal 20 together with the upper connecting rod 43. . That is, the cover member 45 maintains a state covered with the upper guide member 44 to be engaged when the upper guide member 44 to be engaged is rotated according to the rotation of the seat body 30, and the cover member 45 Itself does not rotate.

13 shows a state in which the seat body 30 is reclined with respect to the pedestal 20 from the rear reclining position shown in FIG. 12 to the front reclining position. That is, in the state shown in FIG. 12, the engagement of the reclining locking pin 50 and the rear locking hole 25a is released, and the seat body 30 is slid forward along the pedestal support surface 24. Subsequently, the reclining position is fixed by engaging the reclining locking pin 50 with the locking hole 25a in the front.

The lower connecting rod 41 and the upper connecting rod 43 that connect between the lower engaged guide member 40 and the upper engaged guide member 44 of the seat body 30 are provided for reclining of the seat body 30. Following the motion, it slides forward and backward along the guide groove 22b of the pedestal 20. Accordingly, the seat body 30 performs a reclining and rotating operation with respect to the pedestal 20, and the lower connecting rod 41 and the upper connecting rod 43 connected through the rod connecting member 42 are provided with the seat main body ( It is connected to the lower engaged guide member 40 and the upper engaged guide member 44 of 30) while always maintaining an engaged state, that is, maintaining a relative positional relationship with the seat body 30.

On the other hand, although of course, the seat body 30 may be in a reclining position corresponding to the central locking hole 25a. Even when the seat body 30 is in the reclining position corresponding to the central locking hole 25a and the reclining position corresponding to the front locking hole 25a, the rotation axis R, which is the central axis of the reclining locking pin 50 ) Rotation of the seat body 30 around the perimeter becomes possible.

14 and 15, the reclining operation and rotation operation of the child seat 1 will be described. 14 is a diagram for explaining the reclining operation of the child seat 1, and FIGS. 14A to 14D show the reclining operation in time series. In addition, FIG. 15 is a figure explaining the rotation operation of the child seat 1, and FIGS. 15A to 15D show the rotation operation in time series.

14 and 15, three locking holes 25a, two locking grooves 25b, a reclining locking pin 50, a rotation locking pin 51, and a reclining operation lever 55a ) And the rotation operation lever 55b are schematically shown. In addition, the cylindrical curved surface 25 which is a concave curved surface is schematically shown as a horizontal surface. 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. In addition, in each of the drawings of Figs. 14 and 15, the upper drawing schematically shows a viewpoint from the top, including a cross-sectional view taken along line XX of the lower drawing, and the lower drawing shows the viewpoint from the front as a line of the upper drawing It is schematically shown including a cross-sectional view taken along line YY, that is, the left locking groove 25b.

Referring to the reclining operation, Fig. 14A shows the seat body 30 in an omnidirectional state, and the reclining operation lever 55a and the rotation operation lever 55b are not being operated. The reclining locking pin 50 is engaged with the central locking hole 25a of the three, and the rotation locking pin 51 is engaged with the left locking groove 25b. Fig. 14B shows a state in which the reclining operation lever 55a is pulled forward, the reclining locking pin 50 is moved upward, and the engagement with the locking hole 25a is released.

14C shows a state in which the seat body 30 is slid forward with the reclining operating lever 55a pulled forward. That is, this operation is a reclining operation of reclining the seat body 30 with respect to the pedestal 20. During the reclining operation, the rotation locking pin 51 is engaged with the locking groove 25b. 14D shows an operation of fixing the seat body 30 to the pedestal 20 of the seat body 30 after sliding the seat body 30 forward, that is, after reclining. That is, by releasing the reclining operation lever 55a, the reclining operation lever 55a returns to the rear position, and the reclining locking pin 50 is inserted into and engaged with the locking hole 25a in the front.

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

FIG. 15C shows a state in which the seat body 30 is rotated 180 degrees around the rotation axis R of the reclining lock pin 50 with the reclining operation lever 55a pulled forward. That is, this operation is a rotational 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 rearward state. During the rotational operation, the reclining locking pin 50 is engaged with the locking hole 25a. FIG. 15D shows an operation of fixing the seat main body 30 to the pedestal 20 after rotating the seat main body 30. That is, by releasing the rotation operation lever 55b, the rotation operation lever 55b returns to the rear position, and the rotation locking pin 51 is inserted into the other locking groove 25b to engage.

Regarding the reclining mechanism and rotation mechanism of the child seat 1, the child seat 1 has a pedestal 20 having a lower connecting rod 41 and an upper connecting rod 43 as an engaging portion, and engages with the engaging portion. When the seat body 30 has a lower guide member 40 and an upper guide member 44 to be engaged as a part to be engaged, the reclining position of the seat body 30 is changed and the seat body 30 is rotated. Eh, the engagement between the engaged portion and the engaged portion is maintained. That is, the relative positional relationship of these members is always constant. Therefore, the child seat 1 is a simple mechanism with fewer parts and miniaturized parts compared to a conventional child seat having a reclining mechanism and a rotating mechanism. The rotation position of the seat body 30 relative to the pedestal 20 and the Regardless, the seat body can be reclined.

In addition, in the lower part of the child seat 1, that is, a reclining mechanism and a rotating mechanism are disposed below the standing portion 22 of the seat lower portion 31 and the pedestal 20, the pedestal 20 of the seat body 30 ) Is stably supported, and as a result, it becomes possible to operate stably. In addition, 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, during the reclining operation and the rotation operation of the seat body 30, the reclining mechanism and the rotating mechanism are not exposed to the outside, so that fingers and the like are not caught, which is excellent in safety and design.

In addition, in the child seat 1, since the reclining locking pin 50 and the rotation locking pin 51 are formed separately and operated independently, for example, as in the child seat described in Patent Document 1, a single locking pin Compared to the case where the reclining operation and the rotating operation are selected according to the amount of protrusion, the operation can be performed reliably and stably with a simple mechanism. Moreover, since it is not necessary to change the amount of protrusion according to the desired operation, compared to the child seat described in Patent Document 1, the processing precision and assembly precision of each part of the reclining mechanism and the rotating mechanism are not strict, resulting in the cost of parts. However, manufacturing cost can be reduced.

On the other hand, 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 engaged portion and the engaged portion can be arbitrarily configured. For example, the pedestal 20 has only one of the lower engaged guide member 40 and the upper engaged guide member 44, and the seat body 30 corresponds to the lower connecting rod 41 and the upper connecting rod You may have one of (43). The lower guide member 40 to be engaged is not a disk shape, but may have a ring shape or a polygonal shape. The lower guide member to be engaged 40 and the upper guide member to be engaged 44 may be formed integrally with the seat body 30.

As a connecting member between the lower engaging guide member 40 and the upper engaging guide member 44, the lower connecting rod 41, the rod connecting member 42, and the upper connecting rod 43 are formed integrally. Also good. In addition, the lower connecting rod 41, the rod connecting member 42, and the upper connecting rod 43 are rearward of the child seat 1 of the seat body 30, that is, the standing portion 22 of the pedestal 20. In the) side, the lower engaged guide member 40 and the upper engaged guide member 44 were engaged, but other arrangements may be employed as long as the seat body 30 can be moved back and forth according to the reclining operation.

Although three locking holes 25a were formed in the cylindrical curved surface 25 of the pedestal 20, two or four or more may be sufficient. That is, the reclining positions corresponding to the number of locking holes 25a can be set to any number, and they do not need to be at equal intervals. In addition, a pair of locking grooves (25b) parallel to the center line (H) was formed on the cylindrical curved surface (25) of the pedestal (20), and an arbitrary angle, for example, perpendicular to the center line (H). A groove may be formed. That is, in addition to the forward and rearward states of the sheet main body 30, it may be made to be in a transverse state for infants and toddlers to face sideways. Even in such a transverse state, by providing a plurality of locking holes in the transverse direction, a reclining operation may be possible.

However, as described above, the child seat 1 is capable of reclining the seat body 30 by pulling the reclining operation lever 55a, and rotating the seat body 30 by pulling the rotation operation lever 55b. You can make it. If these reclining and rotating operations can be performed simultaneously, there is a possibility that the seat body 30 draws a complex and unpredictable trajectory and collides with the operator. Therefore, the child seat 1 is configured so that the reclining operation and the rotating operation cannot be performed simultaneously.

With reference to Figs. 16 to 18, the operation mechanisms of the reclining operation lever 55a and the rotation operation lever 55b will be described. Fig. 16 is a view for explaining the operation mechanism of the child seat 1, Fig. 17 is another view for explaining the operation mechanism of the child seat 1, and Fig. 18 is another diagram for explaining the operation mechanism of the child seat 1 It is a drawing. 16 to 18, the upper part is the rear of the seat body 30, and the lower part is the front of the seat body 30. In FIGS.

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 shape or a boomerang shape. The operation switch 57 is provided on the operation table 55 so as to be rotatable around the fixing pin 57a by means of a fixing pin 57a in its central portion. Abutting surfaces 57b that diffuse outward toward the front of the seat body 30 are formed on the outer side of the curve of both ends of the operation switch 57, that is, the rear side. On the other hand, since the operation switch 57 is covered from the top by the reclining operation lever 55a and the rotation operation lever 55b, it cannot be visually recognized from the outside.

The operation rod 56a is connected to the reclining operation lever 55a by a rod holding member 58a, and the operation rod 56b is connected to the rotation operation lever 55b by a rod holding member 58b. That is, the end of the operating rod 56a is bent upward, that is, in the drawing, it is bent in a forward direction perpendicular to the ground, and the rod holding member 58a formed in a corresponding L-shape is fitted from above, that is, the drawing In this case, they are connected by fitting from the front direction perpendicular to the ground. The same applies to the rod holding member 58b. Meanwhile, the rod holding member 58a and the rod floating member 58b may be formed integrally 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 operating 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 front end, that is, the front end portion of the rod holding member 58a, first abuts against the abutting surface 57b of the operation switch 57, and rotates the operation switch 57 around the fixing pin 57a. When the reclining operation lever 55a is further pulled, as shown in FIG. 17, the reclining operation lever 55a abuts against the stopper portion 55c of the operation table 55 and stops.

The abutting surface 57b of the operation switch 57 rotated in this state abuts against the side surface of the rod holding member 58a, while the front end, that is, the front end of the other rod holding member 58b, is the operation switch 57 ) Abuts against the other abutting surface 57b. Accordingly, the movement of the rotation operation lever 55b is prevented by abutting the tip end of the rod holding member 58b against the abutting surface 57b of the operation switch 57. In other words, with the abutting surface 57b of the rotated operation switch 57 in contact with the side surface of the rod holding member 58a, the front end of the rod holding member 58b on the other side of the operation switch 57 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 cannot be pulled. On the contrary, when the rotation operation lever 55b is pulled (Fig. 18), the reclining operation lever 55a is pulled. Can't. When one of the reclining operation lever 55a or the rotation operation lever 55b pulled forward is returned to its original position, the reclining operation lever 55a or the rotation operation lever 55b can be pulled forward. Accordingly, according to such an operation mechanism, with a simple mechanism, it is possible to safely realize both the reclining mechanism and the rotating mechanism from operating simultaneously, that is, the alternative operation.

In addition, since the child seat 1 can be operated for reclining and rotating the seat body 30 by simply pulling the reclining operation lever 55a or the rotation operation lever 55b, operation with one hand is also possible. Thus, the other hand can be used freely. Further, even if the operating mechanism is operated with one hand, it can be operated stably.

On the other hand, as described above, by pulling one of the reclining operation lever 55a or the rotation operation lever 55b, the rod holding member 58a until the operation switch 57 contacts the side surface of the rod holding member 58a. Even without the sliding movement of the rod holding member 58a, the sliding movement of the other side of the reclining operation lever 55a or the rotation operation lever 55b is restricted at the time when the front end 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 operation mechanism having the operation switch 57 described above can be applied 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.

By the way, especially referring to FIG. 3, as described above, a rectangular opening 26 is formed in the upper part of the standing part 22 of the pedestal 20. That is, in the child seat 1, by arranging the reclining mechanism and the rotating mechanism in the lower portion of the seat lower portion 31 and the standing portion 22 of the pedestal 20, an opening in the upper portion of the erect portion 22 of the pedestal 20 (26) can be formed. The opening 26 can be used as a handle for carrying the child seat 1.

Further, in the opening 26, as shown in Fig. 4, a mechanism or device 90 having various functions can be mounted. Accordingly, the pedestal 20 may have a function other than the supporting function of the seat body 30. In particular, in the rearward state of the seat body 30, for example, a camera is mounted to take a still image or a video, so that a guardian, etc. can observe the state of an infant and toddler seated through a mobile phone or a car navigation system. You may have it. In addition, a screen may be mounted so that infants and toddlers can enjoy the video. Furthermore, a speaker may be mounted so that infants and toddlers can enjoy the voice. Furthermore, an electric fan, an air conditioner, a lighting device, or the like may be mounted. Further, an ion generating device for releasing ions into the air by plasma discharge or the like may be mounted. According to such an ion generating device, air cleaning effects such as air disinfection, vibration suppression, sterilization, organic matter decomposition and deodorization, and hair care and face care effects for the care of hair or skin of infants and children can be expected. . In addition, in order to easily replace these devices and the like, these devices and the like may be mounted through a mounting mechanism.

In order to use an electric device mounted in the opening 26, a battery may be disposed in the interior of the pedestal 20 so as to be interchangeable, or a cigar socket of a vehicle may be used as a power source. Power cables from a power source such as a battery or a cigar socket to an electric device are wired so as to pass through the lower surface and the rear surface of the child seat 1 so as not to interfere with the reclining and rotating operation of the seat body 30, or It is desirable to wire through the inside of ).

On the other hand, as a matter of course, the opening 26 may have a shape other than a rectangle, for example, a circular shape. Further, the opening 26 may be a simple concave portion even if it penetrates toward the rear. In addition, the opening 26 as described above is a type in which the seat body is fixed to the pedestal, as well as the child seat of the type capable of reclining and rotating the seat body relative to the pedestal, but the seat body is detachable from the pedestal. It is also applicable to the type that is installed properly.

By the way, the child seat is required to have high impact resistance for the purpose of protecting infants and children from impacts acting on a vehicle during a collision. The impact resistance performance is verified by the amount of displacement of the child seat with respect to the seat of the vehicle immediately after the collision, the amount of displacement of the motion of the irregular child seat due to recoil caused by the displacement immediately after the collision, and the like. In order to realize high impact performance, it is preferable that the child seat is securely fixed to the seat of the vehicle. For fixing the child seat, a seat belt of a seat belt device that is usually provided on a seat of a vehicle is used. A seat belt device provided in a seat of a vehicle has a seat belt, a tongue including a tongue plate in which the seat belt is fitted, and a buckle in which the tongue plate is detachable.

In this regard, referring to FIG. 4, as described above, the child seat 1 has belt engaging projections 27 formed at the left and right rear portions of the base portion 21 of the pedestal 20. The belt engaging protrusion 27 is disposed at a position engaging the tongue or buckle 91 of the seat belt device from the rear side with the pedestal 20 attached to the seat of the vehicle. In other words, the belt engaging projection 27 is formed over a certain length so as to be able to correspond to the position of the tongue or buckle 91 that is different depending on the vehicle model. On the other hand, the belt engaging projection 27 may be a groove-shaped belt engaging groove as long as it can engage with the tongue or 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 higher rigidity compared to the seat belt of the seat belt device. Therefore, by engaging the tongue or buckle 91 of the seat belt device with the pedestal 20 of the child seat 1, in particular, the belt engaging projection 27 or the belt engaging groove formed under the pedestal 20, it is more reliably It becomes possible to fix the pedestal 20. As a result, high impact resistance performance is realized.

On the other hand, the belt engaging projection 27 or the belt engaging groove, the tongue or buckle 91 engages, the pedestal 20 and the belt engagement so that the tongue or buckle 91 engages more reliably without shifting or falling off. It is preferable that the concave portion between the protrusions 27 or a cross-sectional shape perpendicular to the longitudinal direction of the belt engaging groove is formed to constitute an acute angle. Further, the belt engaging protrusion 27 or the belt engaging groove may engage the seat belt of the seat belt device, not the tongue or buckle 91. In this case as well, by fixing the lower portion of the pedestal 20 of the child seat 1, it is possible to securely fix the child seat than that of the conventional child seat. Moreover, the belt engaging projection 27 may be formed separately from the pedestal 20.

The belt engaging protrusion 27 or the belt engaging groove as described above is not only a child seat of a type capable of reclining and rotating operation of the seat body relative to the pedestal, but also a type in which the seat body is fixed to the pedestal, or the seat body is pedestal. It is also applicable to the type that is installed detachably against

The child seat 1 has a plurality of support points against impact in order to suppress the amount of displacement of the seat body 30 with respect to the pedestal 20 and achieve higher impact resistance performance. That is, for example, when a vehicle collides with an object from the front, the entire child seat 1 receives an inertia 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. Accordingly, the seat main body 30 attempts to be displaced in all directions, but the seat main body 30 and the pedestal 20 are in contact with each other and supported at the supporting point, thereby suppressing the amount of displacement of the seat main body 30.

In this regard, referring to FIG. 10, the child seat 1 has a support point A since each tip end of the upper connection rod 43 is engaged with the upper guide member 44 to be engaged, as described above. To form. That is, when the entire child seat 1 is subjected to inertial force in all directions due to a vehicle collision, each tip of the upper connecting rod 43 disposed on the side of the pedestal 20 directly fixed to the seat of the vehicle The upper to-be-engaged guide member 44 disposed on the side of the main body 30 is supported toward the rear. 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 circumferential surface of the upper to-be-engaged guide member 44 installed in the seat body 30 and the support wall surface 28a inside the front end of the pedestal 20 form a support point (B). Are doing. In addition, a ring-shaped upper surface 40d (FIG. 8) of the lower guide member 40 installed in the seat body 30, and a support wall 23a constituting the body receiving opening 23 of the pedestal 20 The lower end of is forming the supporting point (C). In FIG. 10, the supporting point C is a particularly rear end of the lower end of the support wall 23a of the pedestal 20 and a rear end of the upper surface 40d of the lower engaging guide member 40.

Depending on the reclining position of the seat body 30, the support points C are the left and right portions of the lower end of the annular support wall 23a of the pedestal 20 and the upper surface 40d of the lower guide member 40 to be engaged. It may be left or right. That is, the lower guide member 40 to be engaged so that the upper surface 40d of the lower guide member 40 to be engaged constitutes the lower end of the support wall 23a of the pedestal 20 and the support point C at any reclining position. ) Has a diameter larger than the width L in the transverse direction of the main body accommodation opening 23 of the pedestal 20 (Fig. 5). Thereby, in the child seat 1, the seat main body 30 accommodated in the main body accommodation opening 23 is prevented from coming off the pedestal 20.

Since the child seat 1 has support points (A, B, C), in particular, displacement of the seat body 30 relative to the pedestal 20 is suppressed, that is, the front of the seat body 30 relative to the pedestal 20 Movement to is regulated. As a result, higher impact resistance performance can be realized. In addition, since the support points A, B, C are disposed under the seat lower portion 31 of the child seat 1 and the standing portion 22 of the pedestal 20, the pedestal 20 is a seat body ( 30) can be supported more stably. In addition, since the pedestal 20 supports the sheet body 30 by a plurality of supporting points (A, B, C), the impact is dispersed, so that the material forming the pedestal 20 and the sheet body 30 is removed from metal, etc. It can be changed to a lighter resin or the like, and the cost can also be reduced.

On the other hand, the pedestal 20 and the seat body 30 do not always need to be in contact with each other at the support point, but may be slightly separated so as to be in contact only at the time of collision. In addition, the child seat 1 may be configured to have only one support point (A), may be configured to have two support points among the support points (A, B, C), and three support points (A, B, It may be configured to have C). Incidentally, the supporting points for realizing high impact resistance performance are not limited to the above three parts. That is, the portion of the seat body 30 in contact with the pedestal 20 includes a front portion and a rear portion including the upper guide member 44, and a lower portion to be engaged guide member 40 below the front portion and the rear portion. In the lower part containing ), it can be formed arbitrarily.

19 to 22, the height adjustment mechanism of the infant belt 70 (Fig. 1) will be described. 19 is an enlarged perspective view of the rear of the child seat 1, FIG. 20 is an exploded and assembled view of a part of the height adjustment mechanism of the infant belt of the child seat, and FIG. 21 illustrates the height adjustment mechanism of the infant belt 70 of the child seat. 22 is another view for explaining the height adjustment mechanism of the infant belt of the child seat 1. On the other hand, in Fig. 19, the rear panel 68 to be described later is omitted and drawn.

The child seat 1 has an infant belt 70 having a wide width corresponding to a seat belt provided on a vehicle seat in order to safely restrain an infant with respect to the child seat 1. The infant belt 70 is disposed on the left and right sides of the front of the rear abutting portion 32 of the seat body 30, and the left and right infant belts 70 are fastened in the front of the body of the infant. For this reason, the infant belt 70 extends forward through the rear abutting portion 32 from the rear of the rear abutting portion 32 of the seat body 30, and penetrates the seating surface, that is, the lower portion of the seat 31. It extends downward and is fixed at the lower part of the lower seat 31.

The position of the rear abutting portion 32 through which the infant belt 70 passes from the seating surface of the seat body 30, that is, the height of the infant belt 70, needs to be adjusted according to the height of the infant's seat. Accordingly, the child seat 1 has a height adjustment mechanism of the infant belt 70 in order to properly adjust the height of the infant belt 70.

Therefore, in the rear abutting portion 32 of the sheet main body 30, two openings 36 extending in the vertical direction, that is, in the height direction, are formed. These openings 36 are formed symmetrically to each other by sandwiching the post part 37 in the center of the rear abutting part 32, and are in the height direction over a range required as the height of the infant belt 70. Is formed. Through these openings 36, the moving portion 61 including the above-described head plate 60 disposed in front of the rear abutting portion 32 can slide in the height direction with respect to the rear abutting portion 32 It is installed properly.

The moving part 61 is disposed on the back of the head plate 60 disposed in front of the rear abutting part 32, and the rear abutting part 32 with respect to the head plate 60 The rotation support member 62 installed through the two openings 36 of the, a first engagement member 63 installed against the rotation support member 62, and a second engagement member installed against the first engagement member 63 It has (64). On the other hand, in FIG. 20, the rotation support member 62, the first engaging member 63, and the second engaging member 64 are slightly separated for clarity with respect to the rear abutting portion 32 and the head plate 60. It is drawn enlarged. Further, since the head plate 60 holds the infant belt 70 through the slot opening 60a, it constitutes a belt holding member, but may be configured to be held by other members.

In order to insert the infant belt 70 through the head plate 60, at a position corresponding to each of the two openings 36 of the rear abutting portion 32, 2 having approximately the same width as the opening 36 Slot openings 60a are formed. Mounting portions 60b protruding rearward through the opening 36 of the rear abutting portion 32 are formed above each of the slot openings 60a and at the center side of the head plate 60. At the bottom of each of the slot openings 60a and at the center side of the head plate 60, there is formed a pillar-shaped engaged pillar 60c that protrudes rearward through the opening 36 of the rear abutting portion 32. . Engaging holes 60d penetrating in the vertical direction are formed at each tip end of the engaged pillar 60c.

On the left side of the left slot opening 60a and on the right side of the right slot opening 60a, a plate-shaped support plate 60e protruding rearward through the opening 36 of the rear abutting portion 32 and spreading in the height direction Is formed. In the support plate 60e, a concave portion 60f for accommodating a cylindrical engagement rod 65 to be described later is formed. On the other hand, further below each of the slot openings 60a, two ventilation openings 60g that always open toward each of the openings 36 are formed regardless of the height position of the head plate 600.

The rotation support member 62 includes a housing 62a, a rectangular plate-shaped protective wall 62b protruding upward from the housing 62a, and a plate-shaped first knob 62c protruding rearward from the housing 62a. ). The housing 62a is installed against the mounting portion 60b (Fig. 19) of the head plate 60 protruding through each opening 36 of the rear abutting portion 32, thereby rotating with the head plate 60 The support member 62 is integrally installed. At this time, between the head plate 60 and the rotation support member 62, the support portion 37 of the rear abutting portion 32 is disposed. The protective 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-shaped body member 63a. A rectangular opening 63b is formed on the rear surface of the main body member 63a. The upper part of the main 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 around a rotation axis extending in the transverse direction. Further, at the lower portion of the main body member 63a, a cylindrical engaging rod 65 extends to the left and right, respectively. The engaging rod 65 has a reinforcing rod 65a for reinforcement inserted in the left and right sides in the interior thereof. The reinforcing bar 65a is formed of a metal such as carbon steel, but is not limited thereto.

In the rear surface of the rear abutting portion 32, on the right side of the left and right openings 36 of the post portion 37 and the left opening 36, an engaged curved portion 38 is formed. The curved surface portion to be engaged 38 includes a part of a cylindrical surface extending in the horizontal direction, and the concave curved surface with a wide entrance is aligned in the horizontal direction so that it is easy to accommodate the cylindrical engaging rod 65 and is equally spaced in the height direction. It has multiple arrangements.

By engaging the engaging rod 65 of the first engaging member 63 to the concave curved surface of an arbitrary horizontal row of the curved surface portion 38 to be engaged, the head plate 60 is arbitrarily attached to the rear abutting portion 32. It can be adjusted to the height position. At this time, the engagement rod 65 of the first engagement member 63 engaged with the curved surface portion 38 to be engaged is a support plate of the head plate 60 that slides in the height direction together with the first engagement member 63 ( It is also accommodated in the recessed part 60f of 60e). In addition, the first engaging member 63, in the interior of the rotation support member 62, by the torsion spring (63c) of the left circumference integrally formed, the engaging rod (65) of the rear abutting portion (32). It is biased in a rotational direction engaging the curved surface portion 38 to be engaged.

The second engaging member 64 is a plate-shaped member capable of sliding in the vertical direction inside the body member 63a of the first engaging member 63, and is pressed downward by the coil spring 64a. At the lower end of the second engaging member 64, a pair of engaging pins 66 protruding downward from the main body member 63a of the first engaging member 63 are formed to the left and right. Each of the engagement pins 66 engages the head plate 60 by being inserted into the engagement hole 60d of the column to be engaged 60c protruding from the head plate 60 through the opening 36. Further, the second engaging member 64 has a flat second knob 64b protruding rearward through the rectangular opening 63b of the first engaging member 63.

An operation for adjusting the height of the infant belt 70 will be described with reference to FIG. 21. 21 is a view for explaining the height adjustment mechanism of the infant belt 70 of the child seat 1, as described above, the seat body 30, that is, approximately passing through the center in the width direction of the moving part 61 It is a longitudinal sectional view. First, the first knob 62c of the rotation support member 62 and the second knob 64b of the second engaging member 64 are simultaneously held, and in the direction of the first knob 62c, the second knob 64b Is pulled up (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 placing the thumb on the upper surface of the first knob 62c, placing the index finger and middle finger on the lower surface of the second knob 64b, and pulling it upward. By lifting the second engaging member 64 upward with respect to the first engaging member 63, the engaging pin 66 of the second engaging member 64 and the engaged pillar 60c of the head plate 60 The engagement with the engagement hole 60d of is released. As a result, the first engaging member 63 is in a state capable of rotating with respect to the rotation support member 62 (FIG. 21(b)).

Further, if the operation of pulling the second knob 64b of the second engaging member 64 upward is continued, the first engaging member 63 rotates with respect to the rotation support member 62. Accordingly, engagement between the engagement rod 65 of the first engagement member 63 and the curved portion 38 on the rear surface of the rear abutting portion 32 is released. As a result, the head plate 60 becomes a state capable of sliding in the height direction with respect to the rear abutting portion 32 (Fig. 21(c)). In this state, the infant belt 70 slides to the desired height by sliding the head plate 60, which is inserted into the slot opening 60a, in the height direction with respect to the rear abutting part 32. You will be able to exercise.

Here, in a state in which the engagement of the engagement pin 66 is released by pulling the second engagement member 64 upward with respect to the first engagement member 63, the first engagement member ( When 63 is rotated, the sliding motion of the second engaging member 64 with respect to the first engaging member 63 is regulated. This will be described with reference to FIG. 22. 22 is another view for explaining the height adjustment mechanism of the infant belt of the child seat 1, as described above, and is a longitudinal sectional view including the side surface of the second engaging member 64. In Fig. 22, members other than the first engaging member 63 and the second engaging member 64 are omitted and drawn.

Referring to FIG. 22, a locking protrusion 64c (see FIG. 20) is formed on a side surface of the second engaging member 64, and an engaging recess (see FIG. 20) is formed in the housing 62a of the rotation support member 62. 62d) is formed. In the state of Fig. 22(a), the second engaging member 64 is pulled upward with respect to the first engaging member 63 (Fig. 22(b)), and then the rotation support member 62 is first rotated. The engaging member 63 is rotated. Accordingly, the locking projection 64c of the second engaging member 64 engages with the locking recess 62d of the rotation support member 62 (Fig. 22(c)). As a result, the sliding motion of the second engaging member 64 with respect to the first engaging member 63 is restricted.

Therefore, even if the lifting force of the second knob 64b of the second engaging member 64 is weakened in this state, the engaging pin 66 does not protrude again due to the auxiliary force of the coil spring 64a. In other words, the second engaging member 64, which has been slid upward, is in a state in which the engaging rod 65 of the first engaging member 63 is engaged with the engaged curved portion 38 of the rear abutting portion 32. Unless otherwise, the second engaging member 64 is configured safely so that it does not return to its original position.

After sliding the infant belt 70 to a desired height, in order to fix the infant belt 70 to that height, the above-described series of operations may be reversed. That is, the first engagement member 63 is rotated with respect to the rotation support member 62, and the engagement rod 65 of the first engagement member 63 is engaged with the curved portion 38 of the rear abutting portion 32. Engage in. Accordingly, the engagement between the locking projection 64c of the second engaging member 64 and the locking recess 62d of the rotation support member 62 is released. Subsequently, the second engaging member 64 is slid downward with respect to the first engaging member 63, and the engaging pin 66 of the second engaging member 64 is moved to the engaged pillar 60c of the head plate 60. ) To the engaging hole 60d. These operations are assisted by the auxiliary force of the torsion spring 63c and the coil spring 64a, so that they can be performed comfortably.

The height adjustment mechanism of the infant belt 70 described above includes the engagement of the second engagement member 64 with the head plate 60, the engagement of the first engagement member 63 with the rear contact portion 32, and Since it has two engagements, even if an impact is applied to the entire child seat 1, both engagements are not released. That is, the disengagement of the second engagement member 64 with respect to the head plate 60 is achieved by upward movement, and disengagement of the first engagement member 63 with respect to the rear abutment portion 32, It is achieved by movement in the direction of rotation, that is, in a direction separated from the rear abutting portion 32. Therefore, the direction of the force required to release these engagements is approximately orthogonal.

Nevertheless, the release of the engagement of the second engagement member 64 with the head plate 60 and the release of the engagement of the first engagement member 63 with the rear abutment portion 32 are performed by the second engagement member 64. ) By a series of successive movements of pulling up the second knob 64b. That is, by always applying the same upward force to the second knob 64b of the second engaging member 64, the engagement in the second step can be released. Accordingly, the height adjustment mechanism of the infant belt 70 described above is configured so that it is difficult to release an unintended engagement, and the intended engagement is easily released.

Further, since the engaged curved portion 38 is formed while leaving the support portion 37 in the center of the rear abutting portion 32, the strength of the rear abutting portion 32 is maintained. In addition, since the concave curved surfaces of the curved surface portions 38 to be engaged of the rear abutting portions 32 are formed in three rows in the height direction, the engaging rods 65 of the first engaging member 63 are horizontally aligned. Rather, it is prevented from being engaged with the concave curved surfaces of the curved surfaces to be engaged 38 having different heights.

On the other hand, the height adjustment mechanism of the infant belt 70, that is, the movement mechanism, can be arbitrarily configured as long as it can be operated by the operation described with reference to FIG. 21. That is, in the moving mechanism, the sliding movement direction and the direction of the force applied to the second engaging member are parallel, and the engagement is first released by the sliding movement of the second engaging member, and then the engagement is released by the rotation of the first engaging member. And, as long as it is in a state in which the sliding motion is possible, it may be configured arbitrarily. In addition, the above-described height adjustment 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 the way, the infant belt 70 is appropriately adjusted in height according to the seat height of the infant by the above-described height adjustment mechanism, and then the degree of tightening of the infant belt 70 according to the body shape of the infant, that is, the rear abutting portion ( It is necessary to appropriately adjust the length extending forward of 32).

The adjustment of the height of the infant belt 70 using the adjustment belt 75 will be described with reference to FIGS. 23 and 24. FIG. 23 is a perspective view showing the uppermost adjustment belt 75 of the child seat 1, and FIG. 24 is a perspective view showing the lowermost adjustment belt 75 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 from the rear side of the rear abutting portion 32 of the seat body 30, and thus are constituted by one belt. In addition, the infant belt 70 is connected to one end of one wide adjustment belt 75 at the rear side of the rear abutting portion 32 of the seat body 30. That is, one end of the adjustment belt 75 is overlapped and sealed with the front portion bent and bent. As a result, at one end of the adjustment belt 75, a roof portion 75a is formed. The infant belt 70 is inserted into the roof portion 75a. Accordingly, the roof portion 75a of the control valve 75 constitutes a connection portion with the infant belt 70. The adjustment belt 75 is formed by organizing a material commonly used in a vehicle seat belt, for example, polyester fiber, but is not limited thereto.

The adjustment belt 75 extends downward along the rear abutting portion 32 of the seat body 30, and near the lower end of the seat body 30, that is, on the rear surface of the cylindrical portion 31b of the lower seat 31. It enters into the inner space 35 from the opening 31c formed in the lower part (refer FIG. 7). Next, referring to FIG. 9, the adjustment belt 75 entered into the inner space 35 of the seat body 30 is formed on the bottom surface of the inner space 35 and protrudes upwardly. ), it is bent at an acute angle and extends upward to the vicinity of the lower surface of the sheet plate 34.

Subsequently, the adjustment belt 75 extends in parallel with the seat bottom surface 33 toward the front inside the inner space 35, and is then formed in the upper portion of the front surface of the cylindrical portion 31b of the lower seat 31 It comes out of the inner space 35 from (31d) (refer FIG. 7). Subsequently, the adjustment belt 75 extends upward from the opening 31e formed in the front surface of the truncated cone 31a of the lower seat 31 to the upper portion of the lower seat 31. Subsequently, the adjustment belt 75 extends forward of the seat body 30 through the belt adjuster 76 disposed at the rear of the operation table 55 of the operation mechanism installed in the front portion of the upper surface of the seat lower portion 31 ( Fig. 1).

The belt adjuster 76 can lock and release the adjustment belt 75 with a known mechanism. When the adjustment belt 75 is locked by the belt adjuster 76, the adjustment belt 75 cannot be moved forward and backward with respect to the belt adjuster 76. On the other hand, when the lock of the belt adjuster 76 is released, the adjustment belt 75 can be moved forward and backward with respect to the belt adjuster 76.

Next, the adjustment of the length of the infant belt 70 will be described. The length adjustment of the infant belt 70 is performed in a state in which the belt adjuster 76 is unlocked. If you want to lengthen the length of the infant belt 70 extending forward of the rear abutting part 32, it is lengthened by pulling the infant belt 70 extending forward or upward of the rear abutting part 32. I can. Finally, the infant belt 70 can be pulled until there is no extra part on the rear side of the rear abutting portion 32 of the seat body 30. At this time, the length of the infant belt 70 extending to the front of the rear abutting portion 32 is the maximum, and the roof portion 75a of the adjustment belt 75 connected to the infant belt 70 is at the highest value (FIG. 23 ).

The uppermost value of the adjustment belt 75 is a position where the roof portion 75a corresponds to the portion in which the slot opening 60a of the head plate 60 through which the infant belt 70 is inserted is formed. Accordingly, the highest value of the adjustment belt 75 changes according to the height adjusted by the height adjustment mechanism of the infant belt 70.

On the other hand, in the case of shortening the length of the infant belt 70 extending forward of the rear abutting portion 32, the portion of the adjustment belt 75 extending forward of the seat body 30 (Fig. 1) is moved forward. You can shorten it by pulling. Finally, the adjustment belt 75 can be pulled until the roof portion 75a of the adjustment belt 75 connected to the infant belt 70 is disposed near the opening 31c of the lower seat 31. At this time, the length of the infant belt 70 extending forward of the rear abutting portion 32 is the shortest, and the roof portion 75a of the adjustment belt 75 connected to the infant belt 70 is in the lowest position (FIG. 24 ).

The lowest position of the adjustment belt 75 is a position in which the roof portion 75a is near the opening 31c of the lower seat 31. Accordingly, the lowermost position of the adjustment belt 75 is fixed to the position of the opening 31c of the lower seat 31.

From the above, the length adjustment of the infant belt 70 is made by pulling the part of the infant belt 70 extending forward of the rear abutting portion 32 or the adjustment belt 75 extending forward of the seat body 30. It is possible to adjust the degree of tightening of the infant belt 70 according to the body shape of the infant accordingly.

In the child seat (1), the adjustment belt (75) extends near the rear lower end of the seat body (30), that is, to the opening (31c) formed in the lower portion of the rear surface of the cylindrical portion (31b) of the lower seat (31) (35) Go inside. Subsequently, the adjustment belt 75 is bent at an acute angle by the belt support protrusion 33e and extends upward. Therefore, it cannot be said that the adjustment belt 75 passes through the shortest distance toward the belt adjuster 76, and it goes around a detoured path. For this reason, in the child seat 1, by arranging the lowermost position of the adjustment belt 75 in the vicinity of the lower end of the seat body 30 below the conventional child seat, the uppermost position and the lowermost position of the adjustment belt 75 We are securing a longer distance. As a result, the range of length adjustment of the infant belt 70 can be made wider.

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, at an upper portion of the opening 31c. Further, the adjustment belt 75 may not pass through the interior of the seat body 30 but may pass through the exterior, that is, the lower surface of the seat body 30.

By the way, a rear panel (harness panel) 68 is provided on the rear surface of the rear abutting portion 32 of the seat body 30. FIG. 25 is an enlarged perspective view of the rear surface of the child seat 1, and FIG. 26 is a perspective view of the rear panel 68 of the child seat 1. The rear panel 68 covers the extra infant belt 70 and the adjustment belt 75 arranged on the rear side of the rear abutting portion 32 of the seat body 30 so as not to interfere, and the rear abutting portion ( 32) plays a role of accommodating. In addition, the rear panel 68 does not expose a part of the moving portion 61 and the curved portion to be engaged 38 formed on both sides of the opening 36 of the rear abutting portion 32 of the seat body 30. Do a cover role.

As shown in the longitudinal cross-sectional view of FIG. 9, the rear panel 68 is disposed so as to extend in the height direction in the central portion of the sheet body 30 in the width direction, and is fitted to the sheet body 30. The rear panel 68 has an upper panel 68a and a lower panel 68b. The rear panel 68 is integrally formed from a resin material such as polypropylene by injection molding so as to have flexibility. Particularly, the boundary portion between the upper panel 68a and the lower panel 68b of the rear panel 68 is formed thinner compared to other portions to form a hinge 68c capable of being repeatedly bent without breaking. However, for the rear panel 68, the hinge 68c may be omitted, and the rear panel 68 may be bent by its flexibility. On the other hand, the infant belt 70 and the adjustment belt 75 are accommodated in an accommodation space 68d (FIG. 9) between the seat body 30 and the rear panel 68.

The upper end of the rear panel 68 is engaged with the rear abutting portion 32 of the seat body 30. By releasing this engagement, the upper panel 68a is bent toward the rear around the hinge 68c. Then, it becomes possible to open the accommodation space 68d between the seat body 30 and the rear panel 68. That is, the rear panel 68 can be partially separated from the rear abutting portion 32. For example, when adjusting the extra part of the infant belt 70 disposed on the rear side of the seat body 30, the upper panel 68a of the rear panel 68 is bent to open it for easy operation. I can.

Further, in the upper panel 68a of the rear panel 68, an opening 68e is formed in the center portion in the width direction over the height direction. The width of the opening 68e is larger than the width of the post portion 37 of the rear abutting portion 32 of the sheet body 30. Accordingly, the two openings 36 of the rear abutting portion 32 are partially exposed through the opening 68e of the rear panel 68. As a result, in the front and rear direction of the rear abutting portion 32 of the seat body 30, the two openings 36 and the head plate 60 of the rear abutting portion 32 are ) Through the ventilation opening (60g) (FIG. 20), it is possible to secure ventilation. Moreover, since the opening 68e is formed in the rear panel 68, the moving part 61 can be operated with the rear panel 68 installed. That is, through the opening 68e of the rear panel 68, the first knob 62c of the rotation support member 62 and the second knob 64b of the second engaging member 64 can be accessed.

With reference to Figs. 27 to 29, the infant belt 70 will be described. 27 is a top view of a part of the infant belt 70, FIG. 28 is a side view of an elongated state of the infant belt 70 of FIG. 1, and FIG. 29 is a side view of a bent state of the infant belt 70 of FIG. 1.

The infant belt 70 used for the child seat 1 is flexible and is formed by overlapping a plurality of belt-shaped straps 71, for example two straps 71a and 71b. Each of the straps 71a and 71b is formed by fabricating a material commonly used in a vehicle seat belt, for example, polyester fiber. The straps 71a and 71b are sutured 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 bent force, it maintains a bent state against gravity. That is, when the overlapping straps 71 are bent, the radius of curvature of the inner strap 71a of the bend is smaller than the radius of curvature of the outer strap 71b of the bend. Due to the difference in the radius of curvature, it is elongated in the circumferential direction of the bend between the outer surface of the opposite inner strap 71a and the inner surface of the outer strap 71b, for example, in the longitudinal direction of the strap 71 Thus, a shift occurs. Subsequently, when the bending force is released, the infant belt 70 tries to return the elongated outer strap 71b to its original state, but the outer surface of the inner strap 71a and the inner surface of the outer strap are caused by frictional resistance. It is locked. As a result, the transformed infant belt 70 maintains its shape against gravity even after releasing the transforming force.

Therefore, even after the guardian loosens the infant belt 70 and lowers the infant from the child seat, the infant belt 70 maintains its shape against gravity, so that there is no interference when the infant is seated again thereafter. Moreover, since the straps 71a and 71b are formed of a flexible material such as polyester fiber, it is safe even if an 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 sutured so that the displacement between the two straps 71a and 71b is greater. In addition, the infant belt 70 may be maintained in shape by inserting and penetrating a wire or a metal plate that can be maintained in a deformed shape without conforming to frictional resistance. Further, the entire infant belt 70 may be configured to maintain its shape as described above, or may be configured partially. In addition, a cushioned infant belt cover 77 (FIG. 1) may be wrapped around a portion of the infant belt 70 in contact with the infant. In this case, the infant belt cover 77 may be configured to maintain its shape as described above. Moreover, the above-described infant belt 70 can be applied 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 to the seat body 30 will be described with reference to FIGS. 7 and 30. 30 is a front view of the infant belt 70 of the child seat 1. In particular, the infant belt 70 shown in FIG. 30 is provided with a fastening portion 78 (FIG. 1) to which the left and right infant belts 70 are fastened by a fastener at one end thereof, and between the thighs of infants and toddlers. It is the infant belt 70 of the thigh belt to be disposed. In the installation method to the seat body 30, the left and right infant belts 70 and the infant belt 70 of the thigh belt are the same. The infant belt 70 extending from the rear abutting portion 32 of the seat body 30 and the infant belt 70 of the thigh belt, as described above, penetrate the lower portion of the seat 31 toward the bottom, and the seat body ( It is fixed at the lower part of 30). Accordingly, as shown in FIG. 7, in the lower seat 31, as an installation portion for installing through the infant belt 70, installation openings 31f as rectangular through holes are formed in the left and right and front portions.

Further, the front end of the strap 71 constituting the infant belt 70 penetrating the lower seat 31 of the seat body 30 overlaps the front portion that is bent and bent, and is sealed. As a result, a loop portion 72 formed in a loop shape is formed at the tip of the infant belt 70.

In the loop portion 72 of the infant belt 70 that has passed through the lower seat 31 of the seat body 30, a cylindrical fixing rod 73 is then inserted. The fixed rod 73 is formed by cutting, for example, a raw material of a round rod from a metal such as carbon steel, but is not limited thereto. The fixing rod 73 is formed larger than the installation opening 31f of the lower seat 31 through which the infant belt 70 passes. In other words, the length of the cylindrical fixing rod 73 is larger than the horizontal dimension of the rectangular mounting opening 31f, and the diameter of the fixing rod 73 is larger than the vertical dimension of the mounting opening 31f. Therefore, with the fixing rod 73 inserted into the roof portion 72 of the infant belt 70, the infant belt 70 does not come off from the seat body 30. The fixing rod 73 inserted into the lube pu 72 of the infant belt 70 is fitted and fixed in a snap manner by an engaging ring 31g formed near the installation opening 31f of the seat body 30.

Since the infant belt 70 is reliably fixed by the snap fitting of the fixing rod 73, it does not interfere with being hit under the seat body 30. On the other hand, the fixed rod 73 may not have a cylindrical shape, that is, a circular transverse cross-section if it has a rod shape. The fixing rod 73 may be configured to have a polygonal transverse cross-section such as a square and a hexagon.

By cutting the fixed rod 73 for fixing the infant belt 70 from a rod-shaped material, the raw material cost and the processing cost can be very low. In addition, since the fixing rod 73 has a simple structure, it is excellent in strength. Moreover, since the infant belt 70 is fixed to the seat body 30 using the fixing rod 73 simply by snap fitting, the installation work is also simple.

The lid mechanism 80 will be described with reference to FIGS. 31 and 32. 31 is a perspective view of the upper portion of the child seat 1, and FIG. 32 is an exploded assembly view of the rotation locking mechanism 81 of the lid mechanism 80 of the child seat 1.

The cover mechanism 80 is provided on the head plate 60, and the entire cover mechanism 80 slides according to the vertical sliding motion of the head plate 60. The cover mechanism 80 includes a rotation stop mechanism 81, a cover (not shown) that covers the head of an infant, and one fixed cover stay 82 and two first movable cover stays ( 83) and a second movable cover stay 84. The rotational instrumentation mechanism 81 includes a pair of stay support members 85 installed on the curved left and right portions of the head plate 60, a pair of first rotational stopping members 86, and a pair of second rotational stopping members ( 87).

Both ends of the fixed lid stay 82 are fixedly provided with respect to the left and right stay support members 85. Both ends of the first movable cover stay 83 are installed to be rotatable stepwise through the first rotation stop member 86, that is, to be locked in a stepwise rotation position with respect to the left and right stay support members 85 have. Both ends of the second movable lid stay 84 are provided to be rotatable in stages with respect to the left and right stay support members 85 via a second rotation stop member 87.

Accordingly, the first movable cover stay 83 and the second movable cover stay 84 can be rotated in stages forward or backward about a rotation axis extending in the horizontal direction as a whole. Accordingly, the cover can be deployed forward or folded back. On the other hand, the first movable cover stay 83 has a larger possible rotation angle than the second movable cover stay 84, and thus, the second movable cover stay 84 can be deployed forward.

The first rotation stop member 86 has a first rotation end 86a formed in a circular shape. In addition, the second rotation stop member 87 has a second rotation end portion 87a formed in a circular shape having the same diameter as the first rotation end portion 86a. The stay support member 85 is a rotation support part formed in a circular shape having the same diameter as the first rotation end 86a of the first rotation stop member 86 and the second rotation end 87a of the second rotation stop member 87 ( 85a). In the center of the rotation support portion 85a, an elastic column 85b constituted by a U-shaped groove is formed.

The first rotation end portion 86a of the first rotation stop member 86 is disposed on the outer surface of the elastic column 85b of the stay support member 85, and the inside of the elastic column 85b of the stay support member 85 A second rotation end portion 87a of the second rotation stop member 87 is disposed on the side surface. The elastic column 85b, the first rotation end 86a, and the second rotation end 87a are rotatably fastened by inserting a rotation pin 88 through each center.

On the circumference concentric with the rotation center of the first rotation end portion 86a of the first rotation locking member 86, two locking recesses 86b having a concave curved surface are formed. Likewise, two locking recesses (not shown) having a concave curved surface are formed on a circumference concentric with the rotation center of the second rotation end 87a of the second rotation locking member 87. In addition, on the outer surface of the rotation support portion 85a of the stay support member 85 opposite, the rotational range of the first rotation locking member 86 is concentric with the rotation center of the first rotation locking member 86 A plurality of locking convex portions 85c (not shown) having a convex curved surface to be engaged with the locking concave portion 86b are formed at a position corresponding to the locking concave portion 86b extending over the locking concave portion 86b. Similarly, on the inner side of the rotation support portion 85a of the opposite stay support member 85, it is a circumferential shape concentric with the rotation center of the second rotation stop member 87, and the rotation range of the second rotation stop member 87 A plurality of locking convex portions 85c having a convex curved surface to be engaged with the locking concave portion 87b are formed at a position corresponding to the locking concave portion 87b extending over the locking concave portion 87b.

In order to unfold or fold the cover, if the first movable cover stay 83 is slightly rotated with respect to the stay support member 85, the locking recess 86b of the first rotation locking member 86 and the stay support member ( The engagement with the engagement convex portion 85c of 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 locking member 86, and the rotation support portion 85a of the stay supporting member 85 And the first rotation end portion 86a of the first rotation stop member 86 is slightly spaced apart. In this state, due to the elastic force of the elastic column 85b of the stay support member 85 connected to the first rotation end 86a of the first rotation stop member 86, the rotation support portion of the stay support member 85 ( 85a) and the first rotation end portion 86a of the first rotation stop member 86 are urged in the approaching direction.

Subsequently, when the first movable cover stay 83 is further rotated with respect to the stay supporting member 85, the locking concave portion 86b of the first rotation locking member 86 is a stay supporting member 85 adjacent in the rotational direction. It is stabilized by being locked by the locking projection 85c of. In such a stable locking, the biasing force of the elastic column 85b of the stay support member 85 also contributes. On the other hand, the state in which the locking between the locking concave portion 86b of the first rotation locking member 86 and the locking convex portion 85c of the stay supporting member 85 is released is an unstable state. Therefore, in the rotational operation of the first movable cover stay 83, the first rotation locking member 86 has the locking convex portion 85c of the stay supporting member 85 adjacent to the locking concave portion 86b in the rotational direction. ) To be stabilized by locking in stepwise rotation, that is, locking in stepwise rotational position is possible.

On the other hand, 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. Accordingly, in the rotational operation of the second movable cover stay 84, the second rotation locking member 87 is engaged with the locking convex portion 85c of the stay supporting member 85 adjacent in the rotational direction of the locking recessed portion. In order to be stable, stepwise rotation is possible.

Since the above-described cover mechanism 80 can slide in the vertical direction together with the head plate 60, the height can be adjusted with a simple operation according to the height of the seat of the infant to be seated. In addition, the locking concave portion 86b of the first rotation locking member 86 and the locking concave portion of the second rotation locking member 87 are formed in a concave curved shape, and the locking convexity of the stay support member 85 that engages them. Since the portion 85c is formed in a convex curved shape, it can be held and released very smoothly. Accordingly, it is possible to realize a rotation locking mechanism capable of smoothly rotating and locking without requiring lubricating oil, even though it is configured with a simple mechanism with a small number of parts.

On the other hand, a configuration in which either of the two first movable lid stays 83 and the second movable lid stay 84 is omitted may be employed. Thereby, when a child seat is commercialized, it becomes possible to simply indicate the difference for each product model. Further, a locking convex portion may be formed on the locking concave portion 86b and the second rotation locking member 87 side of the first rotation locking member 86, and a locking concave portion may be formed on the stay support member 85 side. Further, the number of locking convex portions and locking concave portions can be arbitrarily selected. Further, the locking convex portion and the locking concave portion may have any shape within the range in which the locking and releasing can be performed.

The positioning mechanism 110 of the support leg 100 will be described with reference to FIGS. 33 to 35. 33 is a perspective view of the positioning mechanism 110 of the support leg 100 of the child seat 1, FIG. 34 is a longitudinal sectional view to the left of the center of the positioning mechanism 110 of FIG. 33, and FIG. 35 is It is a longitudinal sectional view passing through the center of the positioning mechanism 110 of 33. Meanwhile, in FIG. 33, in order to clarify the internal structure of the positioning mechanism 110, only the outlines of some members are drawn.

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 installed, and the child seat body 10, that is, the pedestal 20 The front part of is supported from below. The support leg 100 has a leg portion 101 that can be stretched and contracted in the longitudinal direction, and a positioning mechanism 110 that is installed on the leg portion 101 and determines the length of the leg portion 101.

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

The positioning mechanism 110 is installed under the first cylindrical member 102, a housing 113 having a first housing half 111 and a second housing half 112, and a slider It has (114) and a leg operation lever (115). The first housing half 111 is installed from the front of the first cylindrical member 102, and the second housing half 112 is installed from the rear of the first cylindrical member 102. That is, the first housing half 111 and the second housing half 112 are fitted so as to sandwich the first cylindrical member 102 between the front and rear, and are installed with respect to the first cylindrical member 102. .

In the housing 113 on the side of the first housing half 111, a direction perpendicular to the length direction of the leg 101, that is, a direction separated from the leg 101 penetrating the housing 113 A slider 114 is disposed to enable the sliding movement between the directions. That is, in the housing 113 on the first housing half 111 side, a plurality of guide walls 111a for guiding the sliding movement of the slider 114 are formed. A hollow boss portion 111c protruding rearward is formed on an 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.

On the upper part of the slider 114, a concave portion 114a for accommodating the boss portion 111c and the coil spring 116 of the first housing half 111 is formed. Further, in the concave portion 114a of the slider 114, a columnar guide protrusion 114b protruding forward is formed (FIG. 35). That is, the slider 114 accommodates the boss portion 111c and the coil spring 116 of the first housing half 111 in the concave portion 114a of the upper portion thereof, and at the same time, the guide protrusion 114b of the slider 114 ) Is inserted into the hollow boss portion 111c. Further, protrusions 114c are formed on the left and right of the upper portion of the slider 114 (Fig. 34). Furthermore, a separate fixing member 117 protruding rearward is provided under the slider 114 (FIG. 35). The fixing member 117 may be formed integrally with the slider 114.

At one end of the leg operation lever 115, an operation tab 115a is formed as an operation unit disposed outside the housing, and at the other end of the leg operation lever 115 is disposed inside the housing 113, and a slider A pair of connecting portions 115b connected to the left and right protrusions 114c of 114 are formed. A long hole 115c is formed in each of the connection portions 115b, and a projection 114c of the corresponding slider 114 is disposed therein. Cylindrical rotation support protrusions 115d are formed on the left and right of the middle part of the leg operation lever 115, respectively. The leg operation lever 115 is installed in the housing 113 by the left and right rotation support protrusions 115d, so that it is rotatable around a rotation axis extending in the transverse direction.

With the positioning mechanism 110 attached to the leg portion 101, the slider 114 is urged in the direction of the leg portion 101 by the coil spring 116. Accordingly, the fixing member 117 is inserted into the through hole 130a of the through hole 102a of the first cylindrical member 102 and the through hole 130a of the second cylindrical member 103, and the first cylindrical member ( The sliding motion of the second cylindrical member 103 relative to 102) is regulated. On the other hand, the first cylindrical member 102 and the second cylindrical member 103 and the fixing member 117 are formed of a metal such as carbon steel, but are not limited thereto.

In the case of adjusting the length of the leg portion 101, first, by pulling the operating tab 115a of the leg portion operating lever 115 upward, that is, operating it upward, the rotation axis of the rotation support protrusion 115d Rotate around Such an operation is performed, for example, holding the first cylindrical member 102 above the positioning mechanism 110 with the right hand extending from the top to the bottom, and placing the operating tab 115a from the bottom with the thumb of the right hand. It is done by pulling it upwards. Moreover, if 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.

In accordance with the rotational motion of the operation tab 115a, the connection portion 115b of the other end of the leg operation lever 115 rotates in a direction separated from the leg portion 101. Due to the rotational motion of the connecting portion 115b, the slider 114 slides along the guide wall 111a in a direction separated from the leg portion 101. That is, while the connecting portion 115b of the leg operation lever 115 performs a rotational motion, the movement of the slider 114 is restricted in the sliding direction by the guide wall 111a. However, the left and right protrusions 114c of the slider 114 move within the long hole 115c according to the rotational position of the corresponding connecting portion 115b, so that the rotational motion of the connecting portion 115b is not obstructed, and the connecting portion The rotational motion of 115b is converted into a sliding motion of the slider 114. In other words, the shape of the long hole 115c of the connecting portion 115b is determined so that the conversion of such motion is made smoothly.

By sliding the slider 114 in the direction away from the leg portion 101, the fixing member 117 integrally installed with the slider 114 is provided with the through hole 102a of the first cylindrical member 102 and the second It is removed from the through hole 103a of the cylindrical member 103, and the length of the leg portion 101 can be adjusted. At this time, the right hand is holding the first cylindrical member 102, and the left hand can be used freely.

Then, for example, by sliding the second cylindrical member 103 with respect to the first cylindrical member 102 using the left hand, the leg portion 101 is adjusted to a desired length, and the first cylindrical member One of the through-holes 102a of 102 and the second cylindrical member 103 is aligned with one of the through-holes 103a. 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 due to the biasing force of the coil spring 116. Exercise. As a result, the fixing member 117 of the leg operation lever 115 is inserted into the through hole 102a of the first cylindrical member 102 and the through hole 103a of the second cylindrical member 103 The operation tab 115a of the leg operation lever 115 returns to its original position. That is, the slider 114 can be said to be capable of sliding motion between a fixed position where the extension and contraction of the leg portion 101 is fixed and a release position where the fixed is released.

In summary, with respect to the positioning mechanism 110 of the support leg 100, when the leg operation lever 115 is rotated in a direction in which the operation tab 115a approaches the leg unit 101, the connection unit 115b By moving in a direction away from the part 101, the slider 114 is slid to the release position. On the other hand, when the leg operation lever 115 is rotated in a direction in which the operation tab 115a is separated from the leg portion 101, the connecting portion 115b moves in a direction close to the leg portion 101 and the slider 114 Slide to a fixed position.

Since the above-described positioning mechanism 110 can hold one of the leg portions 101 by one hand and perform a sliding movement to the release position of the slider 114, the other hand can be freely used, and thus the leg While holding the other side of the portion 101, the length of the leg portion 101 can be adjusted with a simple operation. In addition, in order to adjust the length of the leg portion 101, first of all, the operation tab 115a of the leg operation lever 115 must be operated upward. Even if the operation tab 115a is stepped on from above, the slider 114 does not unintentionally become the release position.

On the other hand, the material of the main component has been mentioned appropriately, but the material of the component which is 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 above based on specific embodiments, various changes and modifications can be made to those skilled in the art without departing from the scope and spirit of the present invention.

1: child seat
10: child seat body
20: pedestal
30: sheet body
40: lower guide member to be engaged
41: lower connection rod
42: rod connecting member
43: upper connection rod
44: upper guide member to be engaged

Claims (9)

A pedestal having an engaging portion,
And a sheet body having an engaging portion engaged with the engaging portion,
The seat body is supported on the pedestal so as to be changeable between a plurality of reclining positions at different inclination angles, and is supported on the pedestal so as to be rotatable at each of the reclining positions,
When the reclining position of the seat body is changed and the seat body is rotated, an engagement between the engaging portion and the engaging portion is maintained,
The engaged portion is formed in a ring shape or a disk shape around a rotation axis of the sheet body,
The engaged portion is a lower engaged portion disposed at a lower end of the sheet body and an upper engaged portion disposed above the lower engaged portion,
The engaging portion is a connecting member connecting between the upper engaging portion and the lower engaging portion,
The engaging portion is a child seat, characterized in that to follow the change of the reclining position of the seat body to move in the front-rear direction. The method of claim 1,
The child seat, wherein the engaging portion and the engaging portion are engaged at the rear of the seat body. The method according to claim 1 or 2,
The seat body includes a reclining locking member protruding toward the pedestal so as to engage or releasing engagement with the pedestal, and a rotation locking member protruding toward the pedestal and engaging or releasing the engagement with respect to the pedestal. have,
When changing the reclining position of the seat body, the reclining locking member is disengaged from the pedestal,
When the seat body is rotated, the rotation locking member is disengaged from the pedestal. The method according to claim 1 or 2,
And an operation mechanism for preventing simultaneous rotation of the seat body and changing the reclining position of the seat body. The method of claim 3,
Further comprising an operation mechanism for preventing simultaneous change of the reclining position of the seat body and rotation of the seat body,
The operating mechanism has a first operation portion for operating the engagement and release of the locking member with respect to the pedestal, and a second manipulation portion for operating the engagement and release of the rotation locking member with respect to the pedestal,
When the operation mechanism is disengaged from the reclining locking member by the first operation unit, the second operation unit prevents the rotation locking member from being disengaged, and the rotation locking member is removed by the second operation unit. And preventing the reclining locking member from being disengaged by the first operation unit when the engagement is released. delete delete delete delete

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