JP7428532B2 - child care equipment - Google Patents

Description

The present invention relates to childcare equipment for children.

Generally, childcare equipment for children such as child seats are provided with shoulder belts, crotch belts, and waist belts for supporting the child on the seat. When placing a child in a child restraint seat, after placing the child on these belts, pull the belts underneath the child outward and connect them, or move these belts to the sides of the seat. Later, it was necessary to have the child sit down and connect the devices, which was time-consuming.

To solve this problem, for example, Japanese Patent Laid-Open No. 2008-290587 (Patent Document 1) and U.S. Patent No. 7,445,286 (2008-290587) disclose a child seat in which the belt does not get in the way when a child is seated in the child seat. Patent Document 2) is known.

In the child seats of Patent Documents 1 and 2, the shoulder belt is always under tension in the direction of release, so when the shoulder belt is released, the shoulder belt springs upward. Therefore, when a child is seated in a child seat and the shoulder belt is attached, the shoulder belt does not get in the way.

JP2008-290587A US Patent No. 7,445,286

As described above, in the child seats of Patent Documents 1 and 2, even when a child is seated in the child seat, the shoulder belt does not get in the way. However, even when the belt is attached to the child, the shoulder belt is always under tension in the direction of release, making it impossible to securely restrain the child in the child seat.

The present invention has been made to solve the above-mentioned problems, and its purpose is to allow the child to be seated in a child seat without the belt getting in the way. To provide childcare equipment for children that can be securely restrained.

For this purpose, a childcare device according to one aspect of the present invention includes a seat including a seat portion and a backrest portion, a restraint position provided on the backrest portion to restrain the shoulders of a child seated on the seat, and a restraining position for restraining the shoulders of a child seated on the seat. A shoulder belt unit that can be switched to an open position that does not restrain the shoulders, and a crotch member that is provided on the seat and that can be switched between a restraint position that restrains the crotch of a child seated on the seat and an open position that does not restrain the child's crotch. and an interlocking mechanism that switches the other of the shoulder belt unit and the crotch member to the open position in conjunction with switching of either the shoulder belt unit or the crotch member to the open position.

Preferably, the interlocking mechanism includes a connecting portion that connects the shoulder belt unit and the crotch member.

Preferably, the interlocking mechanism includes a biasing member that biases at least one of the shoulder belt unit and the crotch member toward the open position.

Preferably, the interlocking mechanism switches the other of the shoulder belt unit and the crotch member to the restraint position in conjunction with one of the shoulder belt unit and the crotch member being switched to the restraint position.

Preferably, the shoulder belt unit includes a shoulder belt and a shoulder belt support part whose one end is connected to the backrest part and whose other end is connected to the shoulder belt, and the shoulder belt support part is connected to the connection part. has been done.

Another childcare device according to one aspect of the present invention includes a seat including a seat portion and a backrest portion, a restraining position provided in the backrest portion for restraining the body of a child seated on the seat, and a restraining position for restraining the body of a child seated on the seat. A restraint belt unit that can be switched to an open position in which no restraint is performed, an operating section that is provided on a seat and that can be changed in position between a first position and a second position, and a position of the operating section that can be changed from the first position to the second position. and a connecting portion for changing the position of the restraining belt unit from the restraining position to the release position.

Preferably, the restraint belt unit is a shoulder belt unit that restrains the shoulders of a child seated on the seat.

Preferably, the connecting portion links the movement of the shoulder belt unit and the operating portion to change the position of the operating portion from the second position to the first position, thereby moving the shoulder belt unit from the open position to the restraint position. make it change

Preferably, the shoulder belt unit includes a shoulder belt and a shoulder belt support part whose one end is connected to the backrest part and whose other end is connected to the shoulder belt, and the shoulder belt support part is connected to the connection part. has been done.

Preferably, the connecting section includes a displacement member displaceable by operation of the operating section, and a connecting wire whose one end is connected to the displacement member and the other end is connected to the shoulder belt unit.

Preferably, the operating section is a crotch member provided on the seat and extending between the thighs of a child seated on the seat.

According to the present invention, it is possible to provide a child care device that can securely restrain a child with a belt without the belt getting in the way even when the child is seated in a child seat.

1 is a perspective view of a child seat according to Embodiment 1. FIG. 1 is a perspective view showing a portion of the child seat according to the first embodiment; FIG. FIG. 3 is a schematic diagram showing the position change of the shoulder belt unit and crotch member of the child seat according to Embodiment 1, in which (A) shows the shoulder belt unit in the restraint position, and (B) shows the shoulder belt unit in the restraint position; Indicates that it is in the open position. FIG. 2 is an enlarged schematic diagram showing a shoulder belt unit in Embodiment 1. FIG. FIG. 3 is a schematic diagram showing the position change of the shoulder belt unit and crotch member of the child seat according to Embodiment 1, in which (A) shows the shoulder belt unit in the restraint position, and (B) shows the shoulder belt unit in the restraint position; Indicates that it is in the open position. FIG. 6 is a schematic diagram showing the position change of the shoulder belt unit and crotch member of the child seat according to Embodiment 2, in which (A) shows the shoulder belt unit in the restraint position, and (B) shows the shoulder belt unit in the restraint position; Indicates that it is in the open position. FIG. 6 is a schematic diagram showing a modification of the shoulder belt unit of the child seat, in which (A) shows the shoulder belt unit in the restraining position, and (B) shows the shoulder belt unit in the open position. FIG. 7 is a schematic diagram showing a change in the position of the shoulder belt unit and crotch member of the child seat according to Embodiment 3, in which (A) shows the shoulder belt unit and the crotch member located in the restraining position, and (B) shows that the shoulder belt unit and the crotch member are in the restraining position. The shoulder belt unit and the crotch member are shown in the open position. 9 is a diagram corresponding to FIG. 8 showing a modification of Embodiment 3. FIG. FIG. 6 is a schematic diagram showing the position change of the shoulder belt unit and crotch member of the child seat according to Embodiment 4, in which (A) shows the shoulder belt unit and the crotch member located in the restraining position, and (B) shows The shoulder belt unit and the crotch member are shown in the open position.

Embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same reference numerals are attached to the same or corresponding parts in the drawings, and the description thereof will not be repeated.

(Child seat overview)
With reference to FIGS. 1 and 2, an overview of a child seat 1 as a childcare device according to the present embodiment will be described. In the description of the child seat 1, the front-rear direction corresponds to the front-rear direction of the child seat 1, and the left-right direction corresponds to the left-right direction when viewed from the front of the child seat 1.

The basic structure of the child seat 1 may be the same as that of a general child seat, and is a device that is placed on a car seat and is used to safely seat children such as infants and young children. The child seat 1 includes a base body 2 and a seat body 3.

The base body 2 includes a base portion 20 that is placed on a seat of a passenger car and supports the seat body 3 from below. A leg support 21 is provided at the front end of the base portion 20 and extends toward the floor of the passenger vehicle. An ISOFIX 22 is provided at the rear end of the base portion 20 to be connected to an anchor of a passenger car seat. A seat body 3 is provided above the base portion 20 and is rotatably supported with respect to the base body 2.

The seat body 3 is attached to the upper side of the base body 2 and is rotatably supported with respect to the base body 2. FIG. 1 shows a state in which a soft cloth member, for example a covering member such as a cushion material, is mounted on the seat body 3. Note that the seat body 3 may be rotatably provided with respect to the base body 2 via the seat body 30. The seat body 30 surrounds the seat body 3 from the left and right rear sides. The seat body 3 is fixed to a seat body 30, and the seat body 3 and the seat body 30 are rotatably provided with respect to the base portion 20.

The seat body 3 includes a seat portion 4 and a backrest portion 5. A child sits on the seat body 3. Therefore, the seat part 4 supports the child's buttocks, and the backrest part 5 rises from the rear of the seat part 4 to support the child's back. Note that, as shown in FIG. 2, a slide member 6 overlaps the front surface of the backrest portion 5.

The slide member 6 overlaps the front surface of the backrest portion 5 and is slidable in the vertical direction. The slide member 6 functions as a headrest. Therefore, the slide member 6 includes a standing wall section 61 that protects the back of the child's head, and a pair of side wall sections 62 that protects the side of the child's head. The side wall portions 62 are attached to both ends of the vertical wall portion 61 in the left and right direction, and protrude toward the front. Note that, similarly to the seat body 3, a covering member such as a soft cloth member such as a cushion material may be attached on the slide member 6 as well. The slide member 6 is provided with a shoulder belt passage hole 63 through which a shoulder belt 84 (described later) passes.

As shown in FIG. 1, the backrest portion 5 is provided with a shoulder belt 84 that restrains both shoulders of a child seated on the seat body 3. Further, the seat portion 4 is provided with a crotch member 9 extending between the thighs (both thighs) of a child seated on the seat body 3, and a pair of waist belts 12 for restraining the child's waist. These waist belt 12, shoulder belt 84, and crotch member 9 are connected near the child's abdomen by a buckle 14 provided at the tip of the crotch member 9. These shoulder belts 84, waist belts 12, and crotch member 9 are so-called five-point belts. Note that, in FIG. 2, illustration of these five-point belts is omitted. Further, the shoulder belt 84 and the waist belt 12 do not need to be formed from separate belts, and may be continuously provided as one belt, for example.

(Embodiment 1)
Next, the child seat 1 according to the first embodiment will be described with reference to FIGS. 3 to 5. FIG. 3 is a schematic diagram showing a change in the positions of the shoulder belt 84 and the crotch member 9, and FIG. 5 is a schematic diagram showing the interlocking of the shoulder belt unit 8 and the crotch member 9. In particular, FIGS. 3(A) and 5(A) show that the shoulder belt unit 8 is located in the restrained position, and FIGS. 3(B) and 5(B) show that the shoulder belt unit 8 is located in the released position. shows. In FIG. 3, the illustration of the slide member 6 and the backrest portion 5 is simplified. FIG. 4 is an enlarged schematic diagram showing the shoulder belt unit 8. As shown in FIG.

The child seat 1 of the present embodiment includes a belt interlocking mechanism in which the crotch member 9 and the shoulder belt unit 8 are interlocked to change their positions. The belt interlocking mechanism moves the shoulder belt unit 8 from the restraining position (FIGS. 3(A), 5(A)) to the releasing position (FIGS. 3(B), 5(B)) by operating the crotch member 9. ) can be repositioned. The restraint position is a position where the body of a child seated on the seat body 3 is restrained, and the open position is a position where the child's body is not restrained.

In particular, as shown in FIGS. 5A and 5B, the belt interlocking mechanism generally connects the shoulder belt unit 8 and the crotch member 9, and the shoulder belt unit 8 and the crotch member 9. A connecting portion 7 is provided. Each configuration will be explained in detail.

Referring to FIG. 4, the shoulder belt unit 8 includes a shoulder belt 84 that restrains the body of a child seated on the seat body 3, and a shoulder belt support portion 81 connected to the shoulder belt 84. The shoulder belt 84 is, for example, a long belt-like string. The shoulder belt 84 is provided on the backrest portion 5. Specifically, as shown in FIGS. 3A and 3B, the shoulder belt 84 is provided in a loop shape, and has a shoulder belt passage hole 63 provided in the headrest 6 and a long hole provided in the backrest portion 5. 51 , passes through the back side of the backrest portion 5 , and extends below the seat portion 4 .

Referring to FIG. 4, the shoulder belt support portion 81 is formed of a band-like member that is elastic and flexible. Specifically, the shoulder belt support portion 81 is made of, for example, synthetic resin. The shoulder belt support section 81 has one end connected to the connection wire 70 of the connection section 7 and the other end connected to the shoulder belt 84. The shoulder belt support section 81 includes a support section main body 82 and a rotating section 83 that rotates the support section main body 82 up and down with respect to the headrest 6 . The rotating portion 83 is provided within a housing 65 provided in the headrest 6.

A shoulder belt 84 is located below the support body 82. The support body 82 and the shoulder belt 84, which are stacked one on top of the other, are covered with a cylindrical pad 85. The pad 85 is provided at a position where it comes into contact with the shoulder of the seated child. The shoulder belt support portion 81 is connected to the shoulder belt 84 by coming into contact with the shoulder belt 84 via the pad 85 . In this way, the connection between the shoulder belt support part 81 and the shoulder belt 84 does not mean that the shoulder belt support part 81 and the shoulder belt 84 are directly connected by sewing or gluing, but also by simply It also includes being in contact.

The shoulder belt unit 8 can be switched between an open position and a restraint position by operating the crotch member 9. In other words, the crotch member 9 is the "operating part" of the shoulder belt unit 8. Specifically, when the crotch member 9 is in the first position (FIG. 3(A), FIG. 5(A)), the shoulder belt unit 8 is in the restraining position, and the crotch member 9 is in the second position (FIG. 5(A)). 3(B), FIG. 5(B)), it becomes the open position. In this way, the crotch member 9 switches between the first position and the second position. The first position is a position where the crotch member 9 stands up with respect to the seat surface 4, and the second position is a position where the crotch member 9 falls forward.

As shown in FIG. 3, the crotch member 9 is a member extending between the child's thighs. The crotch member 9 is typically a belt-shaped crotch belt, but is not limited to belt types such as a plate-like member and a cylindrical member.

As shown in FIG. 5, the crotch member 9 is a member that extends vertically and includes an upper end 92, a lower end 93, and a shaft 94 provided between the upper end 92 and the lower end 93. By moving the upper end 92 forward to the second position, the crotch member 9 rotates about the shaft 94 and the lower end 93 moves rearward. Similarly, by moving the upper end 92 rearward to the first position, the crotch member 9 rotates about the shaft 94 and the lower end 93 moves forward.

The connecting portion 7 connects the shoulder belt unit 8 and the crotch member 9. The connecting portion 7 changes the position of the crotch member 9 from the first position (FIG. 5(A)) to the second position (FIG. 5(B)), and the shoulder belt unit 8 is moved to the restraining position (FIG. 5(B)). (A)) to the open position (FIG. 5(B)).

Specifically, the connecting portion 7 includes a displacement member 73 that is displaceable by the operation of the crotch member 9, one end of which is connected to the displacement member 73, and the other end connected to the shoulder belt unit 8. connection wire 70. Since the shoulder belt unit 8 is provided with a pair of shoulder belts 84, the connecting wire 70 is provided on each of the pair of shoulder belts 84. In this case, the displacement member 73 may be provided for each pair of connecting wires 70, or one displacement member 73 may be provided for each pair of connecting wires 70.

The displacement member 73 is provided in a casing 95 provided in the seat portion 4 in the front-rear direction. The displacement member 73 is provided so as to be slidable in the front and rear directions with respect to the housing 95. The displacement member 73 includes a horizontal portion 74 and a vertical portion 75 that projects upward from an end of the horizontal portion 74 . The front end of the lateral portion 74 abuts the lower end portion 93 of the crotch member 9 . Therefore, by rotationally moving the upper end portion 92 of the crotch member 9 forward, the displacement member 73 moves rearward.

The connecting wire 70 is an elongated member and has one end 72 and the other end 77. One end 72 is connected to the upper end of the support body 82 of the shoulder belt unit 8 . The other end 77 is connected to the vertical portion 75 of the displacement member 73. The housing 95 is provided with a holding portion 76 that allows the connecting wire 70 to pass therethrough and holds the connecting wire 70 movably. Similarly, the housing 65 is provided with a holding portion 71 that allows the connecting wire 70 to pass therethrough and holds the connecting wire 70 movably.

Next, the operation of the belt interlocking mechanism will be described with reference to FIGS. 3 and 5.

First, a method for switching the shoulder belt unit 8 from the restraint position to the release position will be described. The upper end 92 of the crotch member 9 in the state shown in FIG. 5(A) is grasped by hand and rotated forward about the shaft 94 to be displaced to the state shown in FIG. 5(B). Since the lower end 93 of the crotch member 9 and the front end of the lateral portion 74 of the displacement member 73 are in contact with each other, as the crotch member 9 rotates, the displacement member 73 also moves rearward and is displaced to the second position. do. As a result, the connecting wire 70 is pulled, the support body 82 of the shoulder belt unit 8 is displaced to the open position, and the support body 82 stands up from the backrest 5 . That is, the connecting portion 7 of this embodiment changes the position of the shoulder belt unit 8 from the restraint position to the release position in conjunction with changing the position of the crotch member 9 from the first position to the second position. .

Next, a method for switching the shoulder belt unit 8 from the open position to the restraint position will be described. When the upper end 92 of the crotch member 9 in the state shown in FIG. Since the ends are only in contact with each other, a gap is created between the crotch member 9 and the displacement member 73. Further, the shoulder belt unit 8 moves by its own weight to the restraining position shown in FIG. 5(A), the connecting wire 70 is pulled upward, and the displacement member 73 also moves forward. In other words, when the crotch member 9 changes its position from the second position to the first position, the shoulder belt unit 8 simply moves to the restraining position by its own weight, so the connecting part 7 is connected to the shoulder belt unit 8 and the crotch part. It is not directly involved in the operation of the member 9.

Further, since the shoulder belt support portion 81 is formed of a flexible elastic member, even if the crotch portion member 9 or the connecting portion 7 breaks down and the connecting wire 70 is stretched, the crotch portion member 9 cannot be flexed. You can do it. Therefore, tensioning of the connecting wire 70 can be prevented, and failures of the belt interlocking unit such as the connecting wire 70 being cut can be prevented.

The operation when seating a child on the seat body 3 is as follows.

The shoulder belt 84, waist belt 12, and crotch member 9 are disconnected from the buckle 14. As shown in FIG. 3(B), the crotch member 9 is moved forward and the shoulder belt unit 8 is switched to the open position. When the shoulder belt unit 8 is switched to the open position, the shoulder belt 84 rises from the backrest portion 5. In this state, the child is seated on the seat body 3. Furthermore, the crotch member 9 is passed between the child's thighs. Further, the shoulder belt 84 is placed on the child's shoulders, and the waist belt 12 is placed on the child's right hip. Further, the shoulder belt 84, waist belt 12, and crotch member 9 are connected to the buckle 14. Thereby, when a child is placed on the child seat 1, the shoulder belt 84 and the crotch member 9 do not get in the way, and the child can be securely restrained by the shoulder belt 84.

When it is desired to remove the child from the child seat 1, the shoulder belt 84, waist belt 12, and crotch member 9 are disconnected from the buckle 14. Furthermore, as shown in FIG. 3(B), the crotch member 9 is moved forward to switch the shoulder belt unit 8 to the open position. Thereby, when the child is taken down from the child seat 1, the crotch member 9 and the shoulder belt 84 do not get in the way.

As described above, when placing or removing a child from the child seat 1, the shoulder belt 84 rises and the crotch member 9 falls forward, making it possible to widen the seating area for the child. Therefore, simply by operating the crotch member 9, the shoulder belt unit 8 can be easily moved to the open position, so the shoulder belt 84 and the crotch member 9 do not get in the way, and the child is placed in the child seat 1. The child can be restrained in the child seat 1, and the child can be taken down from the child seat 1.

Furthermore, since the shoulder belts of conventional child seats are always under tension in the direction of release, the child cannot be securely restrained in the child seat when the child is seated in the child seat. However, in the child seat 1 of this embodiment, since no tension is applied to the shoulder belt 84, the child can be reliably restrained by the shoulder belt 84 and the crotch member 9.

(Embodiment 2)
A configuration example of the child seat according to the second embodiment will be described with reference to FIG. 6. Only the differences from the child seat shown in Embodiment 1 will be explained in detail below. Embodiment 1 and Embodiment 2 differ in the structures of crotch member 9 and displacement member 73. FIG. 6 is a schematic diagram showing the position change of the shoulder belt unit 8, in which (A) shows the shoulder belt unit 8 located in the restrained position, and (B) shows the shoulder belt unit 8 located in the released position. Show that.

Referring to FIG. 6, the crotch member 9A is switched between a first position and a second position. The crotch member 9A includes a rod-like member 92A that extends vertically, an interlocking member 93A that moves in conjunction with the movement of the rod-like member 92A, and a shaft 94 that rotatably supports the rod-like member 92A and the interlocking member 93A. The interlocking member 93A is, for example, fan-shaped. By moving the rod-shaped member 92A forward, the interlocking member 93A rotates around the shaft 94, and the interlocking member 93A moves forward. Similarly, by moving the rod-shaped member 92A rearward, the interlocking member 93A rotates around the shaft 94, and the interlocking member 93A moves rearward.

In this embodiment, a displacement member 73A is connected to the other end of the connecting wire 70. The displacement member 73A is in contact with the crotch member 9A. In this case, it is preferable that the displacement member 73A has a cylindrical shape, for example, and the portion that contacts the displacement member 73 has an arc shape. Since the portion where the interlocking member 93A and the displacement member 73A come into contact is arcuate, the movement of the interlocking member 93A and the movement of the displacement member 73A can be smoothly interlocked. Further, the displacement member 73A is provided in the housing 95A, and is always urged toward the interlocking member 93A side (forward) by a spring 78A.

(Modified example)
A modification of the shoulder belt unit 8 will be described with reference to FIG. 7. In the above embodiment, the shoulder belt support portion 81 of the shoulder belt unit 8 is formed of an elastic and flexible band-like member, but the shape is not limited thereto. The shoulder belt support portion 81B of the shoulder belt unit 8 in FIG. 7 is formed by a plurality of cylindrical members 82B. One end of the shoulder belt support portion 81B is attached to a housing 65 provided on the headrest 6, and the other end is connected to the other end 72A of the connection wire 70.

The cylindrical member 82B has a concave portion at one end and a convex portion at the other end. Furthermore, a connecting wire 70 passes through the center of the cylindrical member. As a result, as shown in FIG. 7A, when the connecting wire 70 is extended, the shoulder belt support portion 81B of the shoulder belt unit 8B extends downward under its own weight to be in the restraining position. As shown in FIG. 7(B), when the connecting wire 70 is contracted, the shoulder belt support portion 81B has its convex portion housed in the concave portion and is aligned in the horizontal direction to be in the open position.

In the above embodiment, the operating section is the crotch member 9 provided on the seat surface section 4. However, the operating section may be a button provided on the seat, an operating lever, a waist belt, or the like. In this case, the seat includes a base body 2, a seat body 3, and a seat body 30. That is, the operating section may be provided not only in the seat body 3 but also in any of the base body 2, the seat body 3, and the seat body 30.

Further, in the above embodiment, the connecting portion 7 is described as including the displacement member 73 and the connecting wire 70, but the connecting portion 7 is not limited to this as long as it links the movements of the shoulder belt unit 8 and the operating portion. That is, the connecting portion 7 may be provided with only the displacement member 73 that is displaced by operation of the operating portion, or may be provided with only the connecting wire 70 without any displacement member.

Specifically, when the connecting portion 7 is only the connecting wire 70, the connecting wire 70 is directly connected to the crotch member 9, and the movements of the shoulder belt unit 8 and the crotch member 9 are completely interlocked. You can. In this case, the connecting wire 70 changes the position of the shoulder belt unit 8 from the restraining position to the release position in conjunction with changing the position of the crotch member 9 from the first position to the second position. When the shoulder belt unit 9 is changed from the second position to the first position, the shoulder belt unit 8 is changed from the open position to the restraint position.

Further, in the above embodiment, the crotch member 9 and the displacement member 73 are formed of separate members and are in contact with each other, but the crotch member 9 and the displacement member 73 are connected and fixed. The position may also be changeable in conjunction with each other. In this case as well, the displacement member 73 links the movements of the shoulder belt unit 8 and the crotch member 9, and the movement of the displacement member 73 is similar to the movement of the connecting wire 70 described above.

Further, in the above embodiment, the child care equipment is described as a child seat, but the present invention is not limited to this, and may be, for example, a baby carriage, a baby rack, a child care chair, or the like.

Further, in the embodiment described above, the shoulder belt unit 8 has been described as being switched between the restraint position and the open position, but the waist belt 12 may be switched between the restraint position and the open position. Further, when the shoulder belt 84 and the waist belt 12 are continuously provided as one belt, both the shoulder belt 84 and the waist belt 12 can be switched between a restraining position and a release position. That is, the restraint belt unit includes the shoulder belt unit 8 and the waist belt 12. Note that even when the waist belt 12 extends from between the seat portion 4 and the backrest portion 5, the waist belt 12 is provided on the backrest portion 5.

In the child seats according to Embodiments 1 and 2, the shoulder belt units 8 and 8B can be switched to the open position or the restraint position by switching the crotch members 9 and 9A, which are operation parts, to the open position or the restraint position. be. In other words, in conjunction with the switching of the crotch members 9, 9A to the open position or the restraint position, the shoulder belt units 8, 8B are switched to the open position or the restraint position. Another configuration example in which the shoulder belt unit and the crotch member are interlocked will be described below.

(Embodiment 3)
With reference to FIG. 8, a configuration example of a child seat according to the third embodiment will be described. Only the differences from the child seat shown in Embodiment 1 will be explained in detail below. Embodiments 1 and 2 and this embodiment differ in the structures of the shoulder belt unit, crotch member, and interlocking mechanism. FIG. 8(A) shows the shoulder belt unit and the crotch member in the restrained position, and FIG. 8(B) shows the shoulder belt unit and the crotch member in the open position.

Referring to FIGS. 8(A) and 8(B), the shoulder belt unit 8C and the crotch member 9C are switched between the open position and the restraint position. The shoulder belt unit 8C and the crotch member 9C are interlocked, and specifically, the crotch member 9C is switched to the open position in conjunction with the shoulder belt unit 8C being switched to the open position, and the crotch member 9C is switched to the open position. In conjunction with the member 9C being switched to the restraint position, the shoulder belt unit 8C is switched to the restraint position. In this embodiment, the shoulder belt unit 8C and the crotch member 9C are interlocked by the connecting portion 7C and the biasing member 79C. In other words, the interlocking mechanism of this embodiment is the connecting portion 7C and the biasing member 79C.

The shoulder belt unit 8C includes a shoulder belt 84 and a shoulder belt support portion 81C connected to the shoulder belt 84. The shoulder belt support section 81C includes a support section main body 82C and a rotating section 83C that rotates the support section main body 82C. A biasing member 79C that biases the shoulder belt unit 8C to the open position is attached to the rotating portion 83C. When the shoulder belt unit 8C is in the restraint position (FIG. 8(A)), the biasing member 79C is extended, and when the shoulder belt unit 8C is in the open position (FIG. 8(B)), the biasing member 79C is not biased. The member 79C is expanding and contracting. The biasing member 79C has a biasing force that biases the shoulder belt unit 8C toward the open position. In the illustrated embodiment, the biasing member 79C is a coil spring, but may be another spring such as a torsion spring, an elastic member, or the like.

Similarly, the crotch member 9C also switches between the open position and the restraint position. The crotch member 9C has an upper end 92C, a lower end 93C, and a shaft 94C provided between the upper end 92C and the lower end 93C. The upper end portion 92C and the lower end portion 93C are connected and fixed to a shaft 94C in the illustrated state, and rotate back and forth in the seat portion 4 about the shaft 94C.

Similar to the embodiment described above, the shoulder belt unit 8C and the crotch member 9C are connected by a connecting portion 7C. The connecting portion 7C of this embodiment is composed only of a long connecting wire 70C. The connecting wire 70C has one end 72C connected to the upper end of the support main body 82C of the shoulder belt unit 8C, and the other end 77C connected to the lower end 93C of the crotch member 9C. The connecting wire 70C is movably held by a holding part 71C fixed to the backrest part 5 and a holding part 76C fixed to the seat part 4.

To switch the shoulder belt unit 8C and the crotch member 9C from the restraint position to the release position, the female buckle 14a and male buckle 14b of the buckle 14 shown in FIG. 8(A) are disconnected. Since the shoulder belt unit 8C is always urged to the open position by the urging member 79C, it is displaced to the open position when the buckle 14 is released. When the shoulder belt unit 8C moves to the release position, the connecting wire 70C is pulled by the shoulder belt unit 8C and moves upward, and the crotch member 9C is also displaced from the restraint position to the release position. In this manner, simply by releasing the buckle 14, the shoulder belt unit 8C and the crotch member 9C are switched to the open position in conjunction with each other.

To switch the shoulder belt unit 8C and the crotch member 9C from the open position to the restraint position, the crotch member 9C located at the open position in FIG. 8(B) is raised and displaced to the restraint position. When the crotch member 9C is switched to the restraining position, the connecting wire 70C is pulled, and the shoulder belt unit 8C is pushed down against the biasing force of the biasing member 79C, and is displaced to the restraining position. In this state, the female buckle 14a and the male buckle 14b are connected. Thereby, the shoulder belt unit 8C and the crotch member 9C are switched to the restraint position in conjunction with each other and maintained in the restraint state.

In addition, from the viewpoint of operability, when switching from the open position to the restraint position, the crotch member 9C is first switched from the open position to the restraint position, but the shoulder belt unit 8C is switched first and the shoulder belt unit 8C is It may be provided so as to be interlocked with the crotch member 9C.

Further, in the present embodiment, the biasing member 79C biases the shoulder belt unit 8C toward the open position. However, as shown in FIGS. 9(A) and 9(B), the biasing member 79D may be connected to the crotch member 9C and bias the crotch member 9C toward the open position. In this case, a biasing member 79D is attached to the lower end portion 93C of the crotch member 9C. In the embodiments shown in FIGS. 9(A) and 9(B), one end 72D of the connecting wire 70D is connected to the support main body 83C of the shoulder belt unit 8C, and the other end 77D is connected to the crotch portion. It is connected to the shaft 94C of the member 9C.

In the embodiment shown in FIGS. 9(A) and 9(B), in order to switch the shoulder belt unit 8C and the crotch member 9C from the open position to the restraint position, either the shoulder belt unit 8C or the crotch member 9C must be switched. All you have to do is switch it to the restraint position. When switching the crotch member 9C, the crotch member 9C located at the open position in FIG. 9(B) is raised and displaced to the restrained position. When the crotch member 9C is switched to the restraint position, the connecting wire 70D is loosened, so that the shoulder belt unit 8C is displaced by its own weight to the restraint position. In this state, the buckle 14 is connected.

Further, when switching the shoulder belt unit 8C instead of the crotch member 9C to the restraint position, the shoulder belt unit 8C located in the open position in FIG. 9(B) is pushed down to be displaced to the restraint position. When the shoulder belt unit 8C is switched to the restraining position, the connecting wire 70D is pulled, and the crotch member 9C is displaced to the restraining position against the urging force of the urging member 79D. In this state, the buckle 14 is connected.

Further, the biasing member 79D is provided for each of the shoulder belt unit 8C and the crotch member 9C so as not to bias either one toward the open position, but to bias both toward the open position. Alternatively, the connecting portions 7C and 7D may be provided at intermediate positions.

Further, as in the present embodiment, either the shoulder belt unit 8C or the crotch member 9C may be biased toward the open position only by the biasing force of the biasing member 79C. In addition to the urging force, artificial force may be used. For ease of understanding, an example of this case will be shown. For example, if a shoulder belt unit and a crotch member are connected to two connecting wires via a displacement member, and the displacement member is biased toward the open position by a biasing member, the crotch member may be By operating it to the open position (that is, using an artificial force as the starting point of the movement), the connecting wire is loosened, and the displacement member, which is biased in the direction of the open position by the biasing force of the biasing member, is moved to the open position. The shoulder belt unit may be further switched to the open position.

(Embodiment 4)
A configuration example of a child seat according to Embodiment 4 will be described with reference to FIG. 10. Only the differences from the child seat shown in Embodiment 3 will be explained in detail below. Embodiment 3 and Embodiment 4 differ in the structure of the connecting portion. FIG. 10(A) shows the shoulder belt unit and the crotch member in the restrained position, and FIG. 10(B) shows the shoulder belt unit and the crotch member in the open position.

Although the connecting portion 7C in the third embodiment is a connecting wire 70C, the connecting portion 7E in this embodiment is a first link 70E and a second link 73E. The first link 70E is a rod-shaped member that extends in the vertical direction, and is arranged within the backrest portion 5 so as to be vertically movable. The second link 73E is a rod-shaped member extending in the front-rear direction, and is disposed within the seat portion 4 so as to be movable in the front-rear direction.

As shown in FIG. 10(A), a first shaft 71E provided at the upper end of the first link 70E is rotatably connected to the shoulder belt unit 8C. A second shaft 72E provided at the lower end of the first link 70E slidably penetrates an elongated hole 74E of the second link 73E. The elongated hole 74E is inclined downward toward the front of the seat portion 4. Therefore, when the second link 73E moves forward, as shown in FIG. 10(A), the second shaft 72E moves upward along the elongated hole 74E, so that the first link 70E slides upward. Furthermore, when the second link 73E moves rearward, the second shaft 72E moves downward along the elongated hole 74E, as shown in FIG. 10(B), so the first link 70E slides downward.

To switch the shoulder belt unit 8C from the restraint position to the release position, the buckle 14 shown in FIG. 10(A) is uncoupled. Specifically, since the shoulder belt unit 8C is biased toward the open position by the biasing member 79C, it is displaced to the open position when the buckle 14 is released. When the shoulder belt unit 8C moves to the open position, the first link 70E moves downward, the second link 73E moves rearward, and the crotch member 9C also moves from the restraint position to the open position. In this way, simply by releasing the buckle 14, the shoulder belt unit 8C and the crotch member 9C can be switched to the open position in conjunction with each other.

To switch the shoulder belt unit 8C from the open position to the restraint position, the shoulder belt unit 8C in FIG. 10(B) is pushed down against the biasing force of the biasing member 79C to the restraint position. When the shoulder belt unit 8C is switched to the restraint position, the first link 70E moves upward, the second link 73E moves forward, and the crotch member 9C is also switched from the open position to the restraint position. In this state, the female buckle 14a and the male buckle 14b are connected.

Since the connecting portion 7E of the fourth embodiment includes the first link 70E and the second link 73E, it is possible to easily adjust the flip-up of the shoulder belt unit 8C.

Note that in the interlocking mechanism of the first and second embodiments, the shoulder belt units 8, 8B are switched to the open position by manually switching the crotch members 9, 9A to the open position. The crotch members 9, 9A may be switched to the open position by manually switching the crotch members 9, 9A to the open position.

Further, in the interlocking mechanism of the first and second embodiments, the shoulder belt units 8, 8B and the crotch members 9, 9A are connected by the connecting portion 7, and are manually interlocked. Further, the interlocking mechanisms of the third and fourth embodiments are mechanically interlocked using the connecting portions 7C, 7D, 7E and the biasing members 79C, 79D. However, the interlocking mechanism is not limited to these embodiments, and may be any mechanism as long as the shoulder belt unit and the crotch member are interlocked, for example, they may be electrically interlocked.

Furthermore, although the biasing members 79C and 79D in the third and fourth embodiments bias the shoulder belt unit 8C or the crotch member 9C toward the open position, they may bias the shoulder belt unit 8C or the crotch member 9C toward the restraint position. good. Further, a locking member may be provided for locking the shoulder belt unit 8C or the crotch member 9C in either the open position or the restraint position.

Further, in each of the above embodiments, the shoulder belt units 8, 8B, 8C and the crotch members 9, 9A, 9C are linked to switch both of them to the open position and the restraint position, but at least both of them are switched to the open position and the restraint position. It suffices if the switch is switched to the open position.

Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to the illustrated embodiments. Various modifications and variations can be made to the illustrated embodiment within the same scope as the present invention or within an equivalent scope.

1 Child seat, 4 Seat part, 5 Backrest part, 7, 7C, 7D, 7E Connection part, 8, 8B, 8C Shoulder belt unit (restraint belt unit), 9, 9A, 9C Crotch part member (operation part), 70, 70C, 70D connecting wire, 70E first link, 73E second link, 73 displacement member, 79C, 79D biasing member, 81, 81B, 81C shoulder belt support portion, 84 shoulder belt.

Claims (5)

a seat including a seat portion and a backrest portion;
a shoulder belt unit that is provided on the backrest and can be switched between a restraint position that restrains the shoulders of a child seated on the seat and an open position that does not restrain the child's shoulders;
a crotch member that is provided on the seat surface and can be switched between a restraining position in which the crotch of a child seated on the seat is restrained and an open position in which the child's crotch is not restrained;
Childcare, comprising: an interlocking mechanism that switches the other of the shoulder belt unit and the crotch member to an open position in conjunction with switching either the shoulder belt unit or the crotch member to an open position. utensils. The childcare device according to claim 1, wherein the interlocking mechanism includes a connecting portion that connects the shoulder belt unit and the crotch member. The childcare device according to claim 2, wherein the interlocking mechanism includes a biasing member that biases at least one of the shoulder belt unit and the crotch member toward the open position. 1 . The interlocking mechanism switches the other of the shoulder belt unit and the crotch member to the restraint position in conjunction with the switching of either the shoulder belt unit or the crotch member to the restraint position. The childcare equipment for children according to any one of items 3 to 3. The shoulder belt unit includes a shoulder belt and a shoulder belt support part whose one end is connected to the backrest part and whose other end is connected to the shoulder belt,
The childcare device according to claim 2 or 3, wherein the shoulder belt support section is connected to the connection section.

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