JP6293549B2 - child seat - Google Patents

Description

  The present invention relates to a child seat arranged on a seat of a vehicle equipped with a seat belt.

  For example, as disclosed in Patent Document 1, a child seat disposed on a vehicle seat is widely used for the purpose of safely bringing a child (a young person such as an infant, an infant, or a child) onto the vehicle. Has been. As such a child seat, a child seat having a seat body having a seat body and a reinforcing arm provided at the rear of the seat and a lock-off device attached to the seat body and capable of gripping a seat belt is known. It has been. The child seat is fixed to the vehicle by inserting the seat belt into a gap between the seat portion and the reinforcing arm portion that reinforces the seat portion, and holding the seat belt with a lock-off device. The lock-off device is, for example, a seat body using two or more of a fastener that penetrates the seat portion from the front, a fastener that penetrates the reinforcing arm portion from the rear, and a fastener that penetrates the lock-off device in the width direction. It is fixed to the part.

JP 2010-269702 A

  However, when a large number of fasteners are used for fixing the lock-off device to the seat body, the attaching operation of the fasteners becomes complicated. In particular, if the direction in which the fastener is inserted is different, it is necessary to attach the fastener while changing the orientation of the seat main body each time.

  The present invention has been made in consideration of the above points, and an object of the present invention is to provide a child seat in which a lock-off device is stably attached to a seat body by a simple method.

The first child seat according to the present invention is:
A child seat arranged on a seat of a vehicle equipped with a seat belt,
A seat body portion having a seat portion having a seat portion and a back portion, and a reinforcing arm portion provided behind the seat portion;
A lock-off device attached to the seat body and having a slit through which the seat belt can pass and capable of gripping the seat belt in the slit,
The lock-off device has a device body portion in which the slit is formed, and a flange portion extending from the device body portion,
Each reinforcing arm portion is connected to the seat portion at the upper end portion and the lower end portion, and is spaced from the seat portion between the upper end portion and the lower end portion to form a gap,
A three-sided frame is formed between the seat part and the reinforcing arm part, and the three-sided frame defines a groove that opens downward and penetrates in the width direction, forming an upper end portion of the gap,
The device body of the lock-off device is disposed in the groove such that the slit extends along the groove;
The lock-off device further includes a claw piece that sandwiches the three-way frame in the width direction with the flange portion.

  In the first child seat according to the present invention, the lock-off device may include a plurality of claw pieces that are spaced apart from each other.

  In the first child seat according to the present invention, the claw piece includes a proximal end extending portion extending in the width direction from the flange portion, and a distal end claw portion extending upward from the proximal end extending portion. May be.

  In the first child seat according to the present invention, the lock-off device includes at least one of a fastener that penetrates the seat portion from the front side to the rear side and a fastener that penetrates the reinforcing arm portion from the rear side to the front side. The fastener may be fixed to the seat body by one fastener.

  In the first child seat according to the present invention, the slit of the lock-off device opens downward, and the fastener penetrates the seat portion from the front side to the rear side, and is more than the slit of the lock-off device. The claw piece may be provided in a portion that is engaged with a front portion and that is behind the slit of the lock-off device.

  In the first child seat according to the present invention, the slit of the lock-off device opens downward, and the fastener passes through the reinforcing arm portion from the rear side to the front side, and passes through the slit of the lock-off device. The claw piece may be provided in a portion that is forward of the slit of the lock-off device.

  The 1st child seat by this invention WHEREIN: Only the fastener which penetrated the said seat part from the front side to the back side may be provided as a fastener which fixes the said lock-off device to the said seat main-body part.

In the first child seat according to the present invention,
The lock-off device has a protruding piece provided on the device body or the flange,
The protruding piece protrudes in a direction parallel to the groove from the device main body portion or the flange portion in a state where the lock-off device is attached to the sheet main body portion, and into a holding hole formed in the sheet main body portion. It may be inserted.

The second child seat according to the present invention is:
A child seat arranged on a seat of a vehicle equipped with a seat belt,
A seat body portion having a seat portion having a seat portion and a back portion, and a reinforcing arm portion provided behind the seat portion;
A lock-off device attached to the seat body and having a slit through which the seat belt can pass and capable of gripping the seat belt in the slit,
The lock-off device has a device body portion in which the slit is formed, and a flange portion extending from the device body portion,
Each reinforcing arm portion is connected to the seat portion at an upper end portion and a lower end portion, and is spaced from the seat portion between the upper end portion and the lower end portion to form a gap,
A three-sided frame is formed between the seat part and the reinforcing arm part, and the three-sided frame defines a groove that opens downward and penetrates in the width direction, forming an upper end portion of the gap,
The device body of the lock-off device is disposed in the groove such that the slit extends along the groove;
The lock-off device has a protruding piece provided on the device body or the flange,
The protruding piece protrudes in a direction parallel to the groove from the device main body portion or the flange portion in a state where the lock-off device is attached to the sheet main body portion, and into a holding hole formed in the sheet main body portion. Inserted.

  The 1st or 2nd child seat by this invention WHEREIN: The said protrusion piece may be provided in the part above the said slit of the said lock-off device.

  According to the present invention, the lock-off device is stably attached to the seat body by a simple method.

It is a figure for demonstrating one embodiment of this invention, Comprising: It is a perspective view which shows a child seat. It is a figure which shows a child seat from back upper direction. It is a perspective view which shows the child seat attached to the seat of the vehicle in the rearward state. It is a perspective view which shows the child seat attached to the seat of the vehicle in the rearward state. It is a side view which shows the child seat attached to the seat of the vehicle in the rearward state. It is a side view which shows the child seat attached to the seat of the vehicle in the 1st forward state. It is a side view which shows the child seat attached to the seat of the vehicle in the 2nd forward state. It is a perspective view which shows a child seat in the state which removed the child belt. It is a fragmentary perspective view which shows the lower part of a child seat from back. It is a fragmentary perspective view which shows the lower part of a child seat from the front. It is a sectional side view which shows the accommodation recessed part of a child seat. It is a perspective view which shows the base of a child. It is a figure which shows a belt guide member. It is a perspective view which shows the front part of a child seat. It is a perspective view which shows the front part of a child seat. It is a longitudinal cross-sectional view of the front part of the child seat. It is a perspective view which shows a lock-off device. It is a perspective view which shows a lock-off device. It is a fragmentary perspective view which shows a child seat in the state which removed the lock-off device. It is a fragmentary perspective view which shows a child seat in the state which removed the lock-off device.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIGS. 1-20 is a figure for demonstrating one embodiment of this invention. The child seat 10 according to the illustrated embodiment is used by being placed on a seat 5 of a vehicle, for example, an automobile. The child seat 10 is a device for appropriately and safely riding a child (a young person such as an infant, an infant, or a child) on a vehicle including a seat (vehicle seat) 5 and a seat belt 7 designed for adults. . The child seat 10 to be described here is attached to the seat 5 in three types of modes of “backward state”, “first forward state”, and “second forward direction”. In the “backward state”, as shown in FIGS. 3 to 5, the child seated on the child seat 10 faces the rear of the vehicle. As shown in FIG. 6, the “first forward state” means that the child seat 10 is fixed on the seat 5 when the seat belt 7 passes through the child seat 10 behind the seat portion 40, and the child seated on the seat portion 40 A state of being held forward by the child belt 90. In the “second forward-facing state”, as shown in FIG. 7, the child belt 90 is removed from the child seat body 20, and the child seated on the child seat 10 and the seat portion 40 is held forward on the seat 5 by the seat belt 7. The state that is.

  Here, the seat belt 7 refers to a shoulder belt 7a extending from the shoulder on one side (right side in the illustrated example) to the waist on the other side (left side in the illustrated example), and from the waist on one side to the other side. This is a so-called three-point seat belt having a waist belt 7b extending to the waist. The seat belt 7 is made of a single belt-like member, and has a tongue 8a inserted therethrough. The tongue 8a bends the one belt-like member to divide the seat belt 7 into a shoulder belt 7a and a waist belt 7b. Further, a buckle 8 b is further provided on the other side of the seat 5. When the tongue 8a is locked to the buckle 8b, the body of a person sitting on the seat 5 is fixed to the seat 5 by the seat belt 7.

  In this specification, the terms “front”, “rear”, “right”, “left”, “horizontal”, “upper” and “lower” used for the child seat 10 and its components are particularly indicated. When there is not, it means “front”, “rear”, “right”, “left”, “horizontal”, “upper” and “lower” based on the child seated on the child seat 10, respectively. The “width direction” of the child seat 10 and its constituent elements is a direction connecting “left” and “right”, that is, “lateral direction”. The “height direction” of the child seat 10 and its constituent elements is the “vertical direction”. Further, the “front-rear direction” of the child seat 10 and its components is a direction connecting “front” and “rear”, and in the illustrated example, also coincides with the “front-rear direction” or “travel direction” of the vehicle. .

  As shown in the accompanying drawings, the child seat 10 includes a child seat body 20 including a seat portion 40 on which a child sits or accommodates a child, a child belt 90 attached to the child seat body 20, and a seat portion 40 of the child seat body 20. And a cover member 99 that is detachably mounted. Among these, the cover material 99 is formed from a cloth material or the like, and appropriately cushioned. The cover material 99 substantially covers a portion other than the hanging tool 59 of the seat portion 40 described later. The cover material 99 is shown only in FIGS. 1 and 8 and is omitted in other drawings. The child belt 90 is illustrated only in FIGS. 1, 2, and 14 to 16.

  The child seat body 20 includes a base 70 disposed on the seat 5 of the vehicle, a seat main body 30 fixed on the base 70, a lock-off device 80 and a lid member 89 attached to the seat main body 30. ,have. Among these, the seat main body 30 includes a seat portion 40 and a pair of reinforcing arm portions 65 that are spaced apart in the width direction. The child seat body 20 further includes a strap member 110 having an attachment portion 110 a attached to the base 70 or the seat body portion 30, and a belt guide member 100 held by the strap member 110. As shown in FIG. 7, the belt guide member 100 guides the shoulder belt 7a of the seat belt 7 in the second forward state. Hereinafter, each component of the child seat body 20 will be described, and then the child belt 90 will be described together with the structure of the child seat body 20 related to the child belt 90. As shown in the accompanying drawings, the child seat 10 according to the present embodiment is generally symmetric with respect to a plane along the front-rear direction (front-rear direction) passing through the center in the width direction (width-direction center plane). It has a configuration.

<Child seat body 20>
<< base 70 >>
First, the base 70 will be described. The base 70 is a part that supports the sheet main body 30 from below. The base 70 has a front surface 70a, a first lower surface 70b connected to the front surface 70a, and a second lower surface 70c located behind the first lower surface 70b. The second lower surface 70c is inclined with respect to the first lower surface 70b. Specifically, the second lower surface 70c is inclined upward toward the rear. In the side view of the child seat 10, the second lower surface 70c and the front surface 70a are substantially orthogonal to each other. As shown in FIGS. 6 and 7, the first lower surface 70 b comes into contact with the seat surface of the seat 5 in installation in the first forward state and the second forward state. On the other hand, as shown in FIGS. 3 to 5, in the installation in the rearward state, the second lower surface 70 c mainly contacts the seat surface of the seat 5, and the front surface 70 a contacts the backrest of the seat 5. Therefore, the inclination angle of the seat body 30 supported by the base 70 with respect to the seat 5 changes between the first forward state and the second forward state and the rearward state. Specifically, the back part 50 of the seat part 40 included in the seat main body part 30 is more inclined (falls down) in the rearward state than in the first forward state and the second forward state. As shown in FIG. 10, a pair of front surfaces 70a are formed apart from each other in the width direction.

  A gap 22 through which the seat belt 7 passes is formed between the base 70 and the seat main body 30 when installed in the rearward state. The child seat body 20 has a storage recess 25 for storing small items. The storage recess 25 is formed between the sheet main body 30 and the base 70 mainly by the base 70. The configuration related to the gap 22 and the storage recess 25 will be described in detail after the seat body 30 is described.

<< Sheet body 30 >>
Next, the sheet main body 30 will be described. As described above, the seat body 30 includes the seat 40 and the reinforcing arm 65. First, the seat unit 40 will be described.

<<< Seat 40 >>>
As described above, the seat 40 of the seat body 30 is a part where a child sits or accommodates a child. The seat part 40 includes a seat part 45 and a back part 50, and side parts 55 located on both sides of the seat part 45 and the back part 50, respectively. The seat 45 faces the child's buttocks from below. The back part 50 comes to face the back part of the child from behind. As shown well in FIGS. 1, 2, 7, 14, and 15, the back portion 50 is formed with a child belt hole 51 through which the child belt 90 passes. In the illustrated example, the child belt holes 51 are formed in three pairs spaced apart in the vertical direction. A guide member hole 54 larger than the child belt receiving hole 51 is formed at a position above the child belt hole 51. A pair of guide member holes 54 are provided apart from each other in the width direction, and the belt guide member 100 can pass therethrough. Each side portion 55 has a clip member 60 formed in a clip shape. As shown in FIG. 7, the clip member 60 guides the shoulder belt 7a of the seat belt 7 along with the belt guide member 100 to a predetermined path in the second forward-facing state. Further, each side portion 55 has a hook 59 formed in a hook shape. As shown in FIGS. 3 and 5, the hanging tool 59 functions as a guide tool for guiding the seat belt 7 to a predetermined path when installed in the rearward state.

  Each side part 55 comes to be located on both sides of the child. As shown in FIGS. 4 to 7, each side portion 55 is formed with a notch 56 a. The notch 56 a is located in the vicinity of the connection position of the seat 45 and the back 50. As shown in FIG. 7, the notch 56a is used to guide the seat belt 7 to a predetermined path in the installation in the second forward-facing state. As shown in FIG. 7, when the child seat 10 is attached to the vehicle seat 5 in the second forward-facing state, the shoulder belt 7a of the vehicle seat belt 7 extending from one side (right side in the illustrated example) It is supported by a notch 56a on the other side (left side in the illustrated example). The waist belt 7b is supported by the notches 56a and 56a on both sides. In this state, the tongue 8a is fastened to the buckle 8b. In the second forward state shown in FIG. 7, the child seat 10 is fixed to the seat 5 by the seat belt 7, and at the same time, the child is fixed to the child seat 10 by the vehicle seat belt 7. That is, in the second forward-facing state, the child belt 90 (see FIG. 7) attached to the child seat body 20 is not used.

  As shown in FIGS. 3 and 5, a path for guiding the seat belt 7 hung on the hanging tool 59 to the gap 22 is formed in the side portion 55. Specifically, as shown in FIG. 9, the side portion 55 has a base end portion 57 a and a base end portion 57 a that extend forward from the width direction end portion of the back portion 50 in the portion located on the side of the back portion 50. And a plurality of rib members 58 provided between the base end portion 57a and the front end portion 57b. Further, as shown in FIG. 10, the side portion 55 is formed from a base end portion 57 a and a base end portion 57 a that extend upward from the width direction end portion of the seat portion 45 in a portion located on the side of the seat portion 45. It includes a folded member 57 including a distal end portion 57b that is displaced outwardly in the width direction and folded downward, and a plurality of rib members 58 provided between the proximal end portion 57a and the distal end portion 57b. And the path | route which guides the seatbelt 7 to the clearance gap 22 is formed on the some rib material 58 in the folding | returning material 57 between the base end part 57a and the front-end | tip part 57b.

<<< Reinforcing Arm 65 >>>
Next, the reinforcing arm portion 65 will be described. As shown in FIG. 3, a pair of reinforcing arm portions 65 is provided behind the seat portion 40. The pair of reinforcing arm portions 65 have a symmetrical configuration. Each reinforcing arm portion 65 extends in the vertical direction. Each reinforcing arm portion 65 is connected to the back surface of the back portion 50 of the seat portion 40 at its upper end portion 65a, and is also connected to the back surface of the back portion 50 of the seat portion 40 at its lower end portion 65b. The reinforcing arm portion 65 is separated from the seat portion 40 between the upper end portion 65a and the lower end portion 65b. That is, a belt passing gap 61 is formed between each reinforcing arm portion 65 and the seat portion 40. The belt passing gap 61 extends in the vertical direction. As shown in FIG. 6, in the installation in the first forward-facing state, the seat belt 7 passes through the belt passing gap 61. Each reinforcing arm portion 65 has a forward projecting portion 66 projecting forward at a lower portion thereof. The front protrusion 66 defines a belt guide gap 61 a below the belt passage gap 61.

<< Lock-off device 80 >>
Lock-off devices 80 are provided at the upper end portions of the belt passing gaps 61 formed on the left and right rear sides of the seat body 30 as described above. As shown in FIG. 19, each lock-off device 80 is attached to the three-way frame 32 of the sheet main body 30 that defines the upper end portion of the belt passing gap 61. Hereinafter, the lock-off device 80 will be described together with the three-way frame 32 of the seat body 30. Note that the pair of lock-off devices 80 and the pair of three-way frames 32 are respectively configured symmetrically.

  The lock-off device 80 has an elongated slit 80a having a longitudinal direction. The slit 80a is open to one side in the longitudinal direction. Through the opening, the seat belt 7 mounted on the vehicle can be inserted into the slit 80a. As shown in FIG. 18, the lock-off device 80 has a swing piece 82. The swing piece 82 can swing with respect to the lock-off device 80 about an axis sd parallel to the longitudinal direction of the slit 80a. The swing piece 82 is biased in a predetermined swing direction by an unillustrated biasing member (for example, a torsion spring). By the urging force from the urging member, the swing piece 82 can grip the seat belt 7 inserted through the slit 80a. That is, the lock-off device 80 can grip the seat belt 7 passing through the slit 80a. As shown in FIG. 6, the lock-off device 80 is used in the installation in the first forward-facing state. In the drawings other than FIG. 18, the swing piece 82 is not shown.

  As shown in FIGS. 17 and 18, the lock-off device 80 includes a device main body 81 in which a slit 80 a is formed and a flange portion 84 extending from the device main body 81. The flange portion 84 is disposed so as not to block the opening to one side in the longitudinal direction of the slit 80a. Specifically, the slit 80a extends from the device main body 81 in three directions that are not opened.

  As shown in FIGS. 19 and 20, a three-way frame 32 is formed between the seat portion 40 and the reinforcing arm portion 65. The three-way frame 32 forms a groove 33 so as to surround from three sides. Therefore, this groove 33 is open to one side. Specifically, the groove 33 forms an upper end portion of the belt passing gap 61 between the seat portion 40 and the reinforcing arm portion 65. The three-way frame 32 has a front frame portion 32a that partitions the groove 33 from the front, a rear frame portion 32b that partitions the groove 33 from the rear, and an upper frame portion 32c that partitions the groove 33 from above. Therefore, the groove 33 is opened downward. The groove 33 is formed as a bottomless groove and penetrates in the width direction. As can be understood by comparing FIG. 20 and FIG. 3, the lock-off device 80 is arranged such that the device main body 81 is located in the groove 33. The slit 80 a extends along the groove 33 and opens downward into the belt passing gap 61.

  The lock-off device 80 further includes a claw piece 85 that sandwiches a portion of the three-way frame 32 in the width direction between the lock-off device 80 and the projecting piece 86 provided on the device main body 81 or the flange portion 84. . In the present embodiment, as shown in FIG. 17, the claw piece 85 includes a proximal end extending portion 85a extending in the width direction from the lower end portion of the flange portion 84, and a distal end extending upward from the proximal end extending portion 85a. Claw portion 85b. The claw piece 85 engages with the rear frame portion 32 b of the three-way frame 32.

  On the other hand, the protruding piece 86 extends in a direction parallel to the groove 33 in a state where the lock-off device 80 is attached to the sheet main body 30. The protruding piece 86 is inserted into a holding hole 39 provided in the sheet main body 30. In the example shown in FIG. 20, the holding hole 39 is formed in the upper end portion 65 a of the reinforcing arm portion 65 or in the connecting portion between the reinforcing arm portion 65 and the sheet main body portion 30. The protruding piece 86 is provided at a portion above the slit 80 a of the flange portion 84. More specifically, the protruding piece 86 extends upward from the upper end of the device main body 81.

  Such a lock-off device 80 can be disposed at a predetermined position with respect to the three-way frame 32 such that the device main body 81 moves upward in the groove 33. Therefore, it is possible to facilitate the positioning of the lock-off device 80 on the seat main body 30. And the fastener which penetrated the side part 55 of the seat part 40 from the front side to the back side and the reinforcement arm part 65 penetrated from the front back to the front side in the state where the lock-off device 80 is disposed at a predetermined position. The sheet main body 30 can be fixed using at least one of the fasteners.

  Preferably, a holding bulge portion is provided on one of the lock-off device 80 and the portion of the sheet body 30 that comes to face the lock-off device 80, and a holding recess for receiving the holding bulge portion is formed on the other side. Yes. In the illustrated example, the holding bulge portion 53 is formed in the seat portion 40, and the holding concave portion 84 a is formed in the flange portion 84 of the lock-off device 80. The lock-off device 80 can be accurately positioned at a predetermined position with respect to the sheet main body 30 by the engagement of the holding bulging portion 53 and the holding concave portion 84a. Further, the protruding direction of the holding bulging portion 53 intersects, in particular, perpendicular to the longitudinal direction of the groove 33. Therefore, the lock-off device 80 can be temporarily held at a predetermined position with respect to the seat main body 30 by the engagement between the holding bulging portion 53 and the holding concave portion 84a before fixing with the fastener. Therefore, the lock-off device 80 using a fastener can be fixed to the seat body 30 very easily.

  According to the present embodiment, the sheet main body 30 is provided with the three-way frame 32, and the three-way frame 32 forms the groove 33 that accommodates the device main body 81 of the lock-off device 80. The lock-off device 80 includes a claw piece 85 that sandwiches the three-way frame 32 in the width direction between the lock-off device 80 and the flange portion 84. By using the claw piece 85 and the flange portion 84, the lock-off device 80 can be easily positioned in the width direction with respect to the sheet main body portion 30. Therefore, it is possible to facilitate the attachment of the lock-off device 80 to the seat body 30.

  Further, according to the present embodiment, the sheet main body 30 is provided with the three-way frame 32, and the three-way frame 32 forms the groove 33 that accommodates the device main body 81 of the lock-off device 80. The lock-off device 80 has a protruding piece 86 provided on the device main body 81 or the flange portion 84. The protruding piece 86 protrudes in a direction parallel to the groove 33 from the device main body portion 81 or the flange portion 84 in a state where the lock-off device 80 is attached to the sheet main body portion 30, and is a holding hole formed in the sheet main body portion 30. 39 is inserted. By utilizing the protruding piece 86 and the holding hole 39, the lock-off device 80 can be easily positioned in the width direction with respect to the sheet main body 30. Therefore, it is possible to facilitate the attachment of the lock-off device 80 to the seat body 30.

  Furthermore, a lock-off device is provided by at least one fastener 87 (see FIG. 7) of the fastener that penetrates the seat portion 40 from the front side to the rear side and the fastener that penetrates the reinforcing arm portion from the front rear side to the front side. 80 can be stably fixed to the sheet main body 30. For example, it is not necessary to use a fastener that penetrates the flange portion 84 of the lock-off device 80 in the width direction. In this case, it is possible to prevent the design of the flange portion 84 of the lock-off device 80 that easily enters the eyes from being damaged by the fastener 87.

  However, in the child seat 10 described here, as a fastener for fixing the lock-off device 80 to the seat main body 30, it is particularly excluded to use a fastener that penetrates the flange portion 84 of the lock-off device 80 in the width direction. Not. That is, the lock-off device 80 may be fixed to the seat body 30 using a fastener that penetrates the lock-off device 80 in the width direction. Furthermore, the lock-off device 80 is attached to the seat body 30 by using a fastener extending in a direction other than the front-rear direction and the width direction, for example, a direction parallel to the slit 80a of the lock-off device 80 (for example, from the lower side to the upper side). It may be fixed.

  Further, the number of fasteners 87 can be reduced by utilizing the engagement between the claw piece 85 and the flange portion 84 and the three-way frame 32 or the engagement between the protruding piece 86 and the holding hole 39. Thereby, it becomes possible to facilitate attachment of the lock-off device 80 to the seat main body 30. In particular, the number of fasteners 87 is further reduced in the present embodiment in which the engagement between the protruding piece 86 and the holding hole 39 can be used together with the engagement between the claw piece 85 and the flange portion 84 and the three-way frame 32. This makes it easier to attach the lock-off device 80 to the seat body 30.

  In the present embodiment, the lock-off device 80 may include a plurality of claw pieces 85 that are spaced apart. According to this example, the lock-off device 80 can be easily and more accurately positioned on the sheet main body 30 by the engagement of each of the plurality of claw pieces 85 and the three-way frame 32. Thereby, it becomes possible to facilitate attachment of the lock-off device 80 to the seat main body 30.

  Moreover, in this Embodiment, as shown in FIG. 19, the hole 52 for fasteners is formed in the back part 50 of the seat part 40. As shown in FIG. As shown in FIG. 18, a fastener hole 80 b is formed in the device main body 81 of the lock-off device 80 at a position where it faces the fastener hole 52. For example, a fastener 87 made of a screw penetrates the fastener hole 52 and enters the fastener hole 80b. That is, the fastener 87 passes through the back portion 50 of the seat portion 40 from the front side to the rear side, and engages with a portion that is forward of the slit 80a of the lock-off device 80. On the other hand, as can be understood from FIG. 19, the claw piece 85 of the lock-off device 80 is provided in a portion that is located behind the device main body 81 of the lock-off device 80. In other words, the claw piece 85 and the flange portion 84 are engaged with the rear frame portion 32 b of the three-way frame 32, and the fastener 87 fixes the lock-off device 80 to the front frame portion 32 a of the three-way frame 32.

  That is, according to the present embodiment, a portion of the lock-off device 80 which is one side of the slit 80a in the front-rear direction can be fixed to the seat body 30 by the fastener 87, and the lock-off device A portion of 80 that is the other side of the slit 80 a in the front-rear direction can be fixed to the sheet main body 30 by engagement of the claw piece 85 and the flange portion 84 with the three-way frame 32. Therefore, the lock-off device 80 is connected to the sheet main body 30 on both sides of the slit 30a opened downward. Thereby, the lock-off device 80 can be more reliably fixed to the sheet main body 30. In addition, deformation of the lock-off device 80 can be prevented. Further, as shown in FIG. 1, the fastener 87 that penetrates the seat portion 40 from the front side to the rear side is covered with a cover material 99. Therefore, it can prevent that this fastener 87 impairs the aesthetics and the designability of the child seat 10.

  In addition, according to the present embodiment, the lock-off device 80 is locked to the sheet main body 30 even in the portion above the slit 80 a by the engagement between the protruding piece 86 and the holding hole 39. That is, the lock-off device 80 is engaged with the side of each part 32a, 32b, 32c of the three-way frame 32 that defines the groove 33 from three sides. Therefore, the attachment state of the lock-off device 80 to the seat body 30 is stabilized. For this reason, it is possible to reduce the number of fasteners for attaching the lock-off device 80 to the seat body 30.

  In addition, in the present embodiment, the fastener hole 52 and the fastener hole 80b are provided in the holding bulging portion 53 and the holding recess 84a, respectively. Therefore, when the lock-off device 80 is positioned with respect to the sheet main body 30 by the engagement of the holding bulging portion 53 and the holding concave portion 84a, the holding bulging portion 53 and the holding concave portion 84a face each other with high accuracy. Will be placed in. For this reason, it is possible to more easily fix the lock-off device 80 to the seat body 30 using the fastener 87.

  Furthermore, according to the present embodiment, only the fastener 87 that penetrates the seat portion 40 from the front side to the rear side is provided as the fastener 87 that fixes the lock-off device 80 to the seat body 30. According to this embodiment, the lock-off device 80 is fixed to the seat body 30 with only one fastener 87. Therefore, the lock-off device 80 can be fixed to the seat body 30 very easily.

  As described above, the lock-off device 80 is used in the installation in the first forward-facing state. As shown in FIG. 6, when the child seat 10 is attached to the vehicle seat 5 in the first forward-facing state, the shoulder belt 7a of the vehicle seat belt 7 is a lock-off device on one side (right side in the illustrated example). While being held at 80, it is supported by the belt guide gap 61a on the other side. The waist belt 7b is supported by belt guide gaps 61a on both sides. In this state, the tongue 8a is fastened to the buckle 8b.

<< Belt guide member 100 and strap member 110 >>
The belt guide member 100 is a member that adjusts the position of the shoulder belt 7a of the seat belt 7 by engaging with the shoulder belt 7a of the seat belt 7 mounted on the vehicle in the second forward-facing state. As shown in FIG. 13, the shoulder belt 7 a of the seat belt 7 slidably passes through a guide space (guide hole) 105 formed in the belt guide member 100, and passes through the guide space (guide hole) 105. It will be extended. Accordingly, as shown in FIG. 13, the belt guide member 100 guides the shoulder belt 7a of the seat belt 7 to an appropriate position according to the physique of the child seated on the child seat 10 arranged on the seat 5 of the vehicle. be able to.

  As shown in FIG. 13, the guide hole (guide space) 105 of the belt guide member 100 is formed as an elongated outer contour opening corresponding to the cross-sectional shape of the seat belt 7. The belt guide member 100 is further formed with a slit 106 that communicates with the guide hole 105. As shown in FIG. 13, the gap (width) of the slit 106 is wider than the thickness of the seat belt 7. Therefore, the seat belt 7 is inserted into the guide space 105 and the seat belt 7 is removed from the guide space 105 by passing the slit 106 while bending or bending the seat belt 7 in the guide space 105. It becomes possible.

  In the example shown in FIG. 13, the belt guide member 100 is formed with a plurality of elongated holes 101, 102, and 103 inserted through the strap member 110. The strap member 100 first passes through the elongated hole 101 farthest from the guide hole 105, and then passes back through the guide hole 105 to be folded back. Then, it passes through the elongated hole 103 closest to the guide hole 105, and then passes through the adjacent elongated hole 102 to be separated from the belt guide member 100. Thus, the strap member 110 holds the belt guide member 100. According to such a method, the belt guide member 100 can be stably held by the strap member 110 and the holding position of the belt guide member 100 by the strap member 110 can be easily adjusted. In the present embodiment, the strap member 110 is attached to the base 70 at an attachment portion 110a as will be described in detail later.

<< Gap 22 in the child seat body 20 >>
As described above, a gap 22 through which the seat belt 7 passes is formed between the base 70 constituting the child seat body 20 and the seat body portion 30 in the rearward-facing state. Next, the gap 22 and the configuration related to the gap 22 will be described.

  As shown in FIGS. 5, 9, and 10, a gap 22 is formed between the base 70 and the seat main body 30 so as to open to the front and both sides. The base 70 and the seat main body 30 are fixed to each other behind the gap 22. As well shown in FIG. 9, the base 70 has a guide surface 71 that receives the seat belt 7. The guide surface 71 is inclined upward toward the front. The base 70 has a guide protrusion 72 that extends rearward from the front portion of the base 70. As shown in FIGS. 3 to 5, the space between the guide protrusion 72 and the guide surface 71 is opened rearward, and this space defines the path of the seat belt. The guide protrusion 72 is disposed so as to be shifted outward from the guide surface 71 in the width direction.

  In the present embodiment, as shown in FIG. 10, a pair of guide surfaces 71 are provided apart from each other in the width direction. And the guide protrusion part 72 is provided in the outward in the width direction of each guide surface 71. As shown in FIG. On the other hand, the sheet main body 30 has a bulging portion 47 that bulges into the gap 22 toward the base 70. The bulging portion 47 is provided at a position between the two guide surfaces 71 in the width direction. As shown in FIG. 5, the bulging portion 47 is located in front of the guide surface 71 in the front-rear direction. As shown in FIG. 5, the bulging portion 47 intersects the guide surface 71 or the extended surface ep of the guide surface 71 in the side view of the child seat 10. Here, the “extension surface” is a surface obtained by continuously extending the guide surface 71.

  For example, as shown in FIG. 14, a buckle receiving recess 46 is formed in the seat 45 of the seat 40 on the surface formed by the seat. The buckle receiving recess 46 accommodates at least a portion of the child belt 90. In the present embodiment, the buckle receiving recess 46 is formed as a recess for accommodating the buckle 93. A bulging portion 47 that bulges into the gap 22 from the seat portion 45 is formed corresponding to the buckle receiving recess 46. That is, the bulging part 47 which the base 70 protruded is formed corresponding to the dent for forming the buckle receiving recessed part 46.

  As shown in FIGS. 3 to 5, when the child seat 10 is attached to the vehicle seat 5 in the rearward state, the shoulder belt 7 a of the vehicle seat belt 7 is first a hanging tool 59 on one side (left side in the illustrated example). After the direction of travel is turned back, the process proceeds into the gap 22. As described above, the shoulder belt 7a is guided in the folded member 57 of the side portion 55 between the hanging tool 59 and the gap 22 (see FIGS. 3, 5, 9, and 10). The shoulder belt 7a passes between the guide protrusion 72 of the base 70 and the seat body 30 and enters the gap 22 from one side in the width direction. After that, while being supported by the guide surface 71 on the other side (right side in the illustrated example), it passes between the guide surface 71 and the guide protrusion 72 and escapes from the gap 22 (see FIG. 4). On the other hand, while being supported by the guide surface 71 on one side, the waist belt 7b passes between the guide surface 71 and the guide protrusion 72 and enters the gap 22 (see FIG. 3). The waist belt 7b then merges with the shoulder belt 7a and passes between the guide surface 71 and the guide protrusion 72 while being supported by the guide surface 71 on the other side (right side in the illustrated example). Then, it comes out of the gap 22 (see FIG. 4). The tongue 8a that has passed through the gap 22 to the other side is fastened to the buckle 8b.

  According to the present embodiment, the child seat body 20 is passed through the gap 22 formed between the seat body portion 30 and the base 70 of the child seat body 20 so that the child seat body 20 is attached to the vehicle. It can be fixed to the seat 5 in a rearward state. The gap 22 through which the seat belt 7 passes is open to the front and both sides. Therefore, the tongue 8a does not need to pass through the gap 22. If the thin and flexible waist belt 7b and shoulder belt 7a are inserted into the gap 22 from the front and cross the gap 22 in the width direction, the child seat 10 is attached to the seat 5 of the vehicle. Can do. That is, it is sufficient that the gap 22 is thin, so that the child seat 10 can be prevented from being enlarged. Further, by visually recognizing the gap 22, it is possible to intuitively grasp that the seat belt 7 is inserted into the gap 22 and the chard seat 10 is fixed to the vehicle seat 5. Further, the insertion operation of the seat belt 7 into the gap 22 can be easily performed. From these things, according to this Embodiment, the attachment to the vehicle of the child seat 10 can be made easy, preventing the enlargement of the child seat 10. FIG.

  Further, according to the present embodiment, the base 70 and the seat main body 30 are fixed behind the gap 22. Accordingly, the child seat body 20 can be easily handled. For this reason, the child seat 10 can be more easily mounted on the seat 5 of the vehicle. In addition, the child seat 10 can be more stably fixed on the seat 5 of the vehicle.

  Furthermore, according to the present embodiment, the guide surface 71 is inclined upward toward the front. Accordingly, the seat belt 7 inserted into the gap 22 between the base 70 and the seat main body 30 abuts on the guide surface 71 of the base 70. Thereby, the child seat 10 can be more stably fixed on the seat 5 of the vehicle. As described above, in the installation in the rearward state, the child seat 10 is inclined so that the front is positioned upward. As a result, the seat belt 7 of the vehicle that is pulled downward comes into contact with the guide surface 71 of the base 70 in a more stable state. As a result, the installation of the child seat 10 in the rearward state is stabilized.

  Furthermore, according to the present embodiment, the guide protrusion 72 that forms the path of the seat belt 7 with the guide surface 71 is provided. Therefore, the child seat 10 can be more stably fixed on the vehicle seat 5 by the engagement between the guide protrusion 71 and the seat belt 7. Moreover, according to the guide protrusion 72, the path of the seat belt 7 for attaching the child seat 10 can be visually taught. Thereby, attachment of the child seat 10 to the vehicle can be further facilitated.

  Furthermore, according to the present embodiment, the space between the guide protrusion 72 and the guide surface 71 is opened rearward. The seat belt 7 can be easily disposed in a path formed between the guide protrusion 72 and the guide surface 71, and the path formed by the seat belt 7 between the guide protrusion 72 and the guide surface 71. Can be effectively prevented from coming off unintentionally.

  Furthermore, according to the present embodiment, the guide protrusion 72 is disposed so as to be shifted outward from the guide surface 71 in the width direction. Therefore, the seat belt 7 can be more easily arranged in the path formed between the guide protrusion 72 and the guide surface 71.

  Furthermore, according to the present embodiment, the two guide surfaces 71 are disposed so as to be separated from each other in the width direction, and the sheet main body 30 has the bulging portion 47 between the two guide surfaces 71. Therefore, the child seat 10 can be more stably fixed on the vehicle seat 5 by the engagement between the bulging portion 47 and the seat belt 7. Further, according to the bulging portion 47, the route of the seat belt 7 for attaching the child seat 10 can be visually taught. Thereby, attachment of the child seat 10 to the vehicle can be further facilitated.

  Furthermore, according to the present embodiment, the bulging portion 47 is located in front of the guide surface 71. Therefore, it is possible to effectively prevent the seat belt 7 positioned behind the bulging portion 47 in the gap 22 from being unintentionally detached from the gap 22.

  Furthermore, according to the present embodiment, the bulging portion 47 intersects the guide surface 71 or the extended surface ep of the guide surface 71 in the observation from the width direction. Therefore, it is possible to effectively prevent the seat belt 7 disposed in the gap 22 from unintentionally coming off the gap 22 beyond the bulging portion 47.

  Furthermore, according to the present embodiment, the seat 45 of the seat main body 30 is formed with the buckle receiving recess 46 that accommodates at least a part of the child belt 90. The bulging portion 47 bulges into the gap 22 toward the base 70 as the opposite side surface of the buckle receiving recess 46. That is, the bulging portion 47 for preventing the seat belt 7 from falling off is formed by using the buckle receiving recess 46, which is convenient in terms of material cost.

  Furthermore, according to the present embodiment, the direction of the force applied from the seat belt 7 to the child seat 10 can be adjusted by adjusting the arrangement of the seat belt 7 via the hanging tool 59. Thereby, the child seat 10 can be more stably fixed on the seat 5 of the vehicle. Further, the arrangement of the seat belt 7 from the hanging tool 59 toward the gap 22 can be stabilized. Therefore, the force applied from the seat belt 7 to the child seat 10 is stabilized. Also from this point, the child seat 10 can be more stably fixed on the seat 5 of the vehicle.

<< Storage recess 25 of child seat body 20 >>
As described above, the storage recess 25 for storing small items is formed between the base 70 and the seat body 30 constituting the child seat body 20. Next, the storage recess 25 and the configuration related to the storage recess 25 will be described.

  As well shown in FIG. 2, the storage recess 25 is formed at a position between the pair of reinforcing arm portions 65. According to such a storage recess 25, it is possible to store accessory parts that are removed from the child seat 10 according to the age of the child to be seated, a care product for caring for the child, and the like. Some of the conventional child seats have a dedicated accommodating portion for accommodating the attached child belt. However, the accommodating portion cannot sufficiently accommodate all the child belts such as a belt cover covering the belt member. On the other hand, according to the present embodiment, since the storage recess 25 is formed, accessories such as a child belt can be collectively stored in the child seat 10. That is, the child seat 10 according to the present embodiment is excellent in handling of small items, and the convenience of the child seat 10 can be improved. The storage recess 25 is disposed between the pair of reinforcing arm portions 65. Therefore, the storage recess 25 can be provided without increasing the size of the child seat 10 and without impairing the original handleability of the child seat 10.

  As shown in FIG. 2, the storage recess 25 is accessible from the back of the seat body 30. That is, according to the present embodiment, an object can be stored in the storage recess 25 or taken out from the storage recess 25 from the rear side of the seat body 30 that is opposite to the side on which the child is seated. . That is, without affecting the child seated on the child seat 10, in other words, with the child seated on the child seat 10, the object can be stored in the storage recess 25 or can be taken out from the storage recess 25. Therefore, the storage recess 25 is easy to use, and the convenience of the child seat 10 can be greatly improved.

  2, 11, and 12, the base 70 has a pair of side wall surfaces that connect the front wall surface 73a and the rear wall surface 73b arranged opposite to each other, and the front wall surface 73a and the rear wall surface 73b. 73c, and a front wall surface 73a, a rear wall surface 73b, and a bottom surface 73d connected to the pair of side wall surfaces 73c. The storage recess 25 is formed by a front wall surface 73a, a rear wall surface 73b, a pair of side wall surfaces 73c, and a bottom surface 73d. And as shown in FIG. 2, the width direction inner side surface 65c of the lower end part of each reinforcement arm part 65 is connected to the said side wall surface 73c so that the side wall surface 73c of the base 70 may be followed. That is, the inner side surface 65c in the width direction of the lower end portion of each reinforcing arm portion 65 forms the storage recess 25 from the side. In other words, the storage recess 25 is formed by the reinforcing arm portion 65 of the seat body 30 and the base 70 that supports the seat body 30 from below. Therefore, it is possible to form the storage recess 25 having a sufficient depth while effectively suppressing an increase in the size of the child seat 10. In addition, the storage recess 25 can be formed at a low cost.

  FIG. 11 shows a front wall surface 73a and a rear wall surface 73b that form the storage recess 25. In FIG. 11, the child seat 10 is illustrated with an inclination in a rearward state. As described above, in the installation in the rearward state, the child seat 10 is inclined so that the front is positioned higher. Even when the child seat 10 is attached to the vehicle in the rearward state, the rear wall surface 73b is inclined forward and upward. Therefore, when the child seat 10 is attached to the vehicle in the first forward-facing state or the second forward-facing state, the rear wall surface 73b is inclined forward and upward at a tighter angle. According to such a storage recess 25, it is possible to effectively prevent an object in the storage recess 25 from coming out of the storage recess 25 with the movement or stop of the vehicle. Thereby, an object can be stably stored in the storage recess 25.

  Further, as well shown in FIG. 2 and FIG. 12, a convex portion 77 is formed at a position where the bottom surface 73d and the front wall surface 73a merge. In the present embodiment, the sheet main body 30 and the base 70 are formed as separate parts, and FIG. 12 is a perspective view showing only the base 70 with the sheet main body 30 removed. As well shown in FIG. 12, the convex portion 77 extends upward from the bottom surface 73d along the front wall surface 73a. The convex portion 77 extends rearward from the front wall surface 73a along the bottom surface 73d. The convex portion 77 functions as a portion that improves the strength of the base 70 and also functions as a portion that separates the storage concave portion 25, thereby improving the usability of the storage concave portion 25.

  Furthermore, as shown in FIG. 11, the convex part 78 is formed also in the position where the bottom face 73d and the rear wall surface 73b merge. The convex portion 78 on the rear wall surface 73b side is arranged at a position facing the convex portion 77 on the front wall surface 73a side in the front-rear direction. Similarly to the convex portion 77, the convex portion 78 functions as a portion that improves the strength of the base 70, and also functions as a portion that separates the storage concave portion 25, thereby improving the usability of the storage concave portion 25. Can do. Further, the attaching portion 110 a of the strap member 110 described above is attached to the top surface of the convex portion 78.

  As shown in FIGS. 2, 9, 11, and 12, the child seat body 20 has a storage unit 23 separately from the storage recess 25. The storage unit 23 is arranged in the front-rear direction via the rear wall surface 73b. As an example, the storage unit 23 can be used as a space for storing the belt guide member 100 in a state where the strap member 110 is wound. Since the belt guide member 100 is a component that engages with the seat belt 7, the attachment portion 110 a of the strap member 110 that holds the belt guide member 100 is preferably fixed to the child seat body 20. For this reason, it is preferable that the child seat body 20 has a space for storing the belt guide member 100 together with the strap member 110. In the illustrated example, the storage unit 23 is provided with a pair of holding ribs 23a that are spaced apart in the width direction. Each holding rib 23a extends in the vertical direction. As in the illustrated example, when the portion of the belt guide member 100 around which the strap member 110 is wound is positioned between the pair of holding ribs 23a, the belt guide in a state where the strap member 110 is wound up by the holding ribs 23a. The member 100 can be stably accommodated in the storage unit 23.

  As another example, the storage unit 23 may be used as a space for storing the instruction manual. According to this example, it is possible to take out the instruction manual from the storage unit 23 or store the instruction manual in the storage unit 23 regardless of the storage state of the object in the storage recess 25. In other words, the storage recess 25 can be used without worrying about the instruction manual, and the storage recess 25 is extremely excellent in its handleability.

<Children's belt 90>
Next, the configuration of the child belt 90 attached to the child seat body 20 as described above and the child seat body 20 related to the child belt 90 will be described.

  As described above, the child seat 10 described here can be fixed on the seat 5 of the vehicle by the seat belt 7 provided in the vehicle. In the installation in the rearward state or the first forward state, the child's body seated by the dedicated child belt 90 is fixed to the child seat 10. In the present embodiment, as shown in FIG. 1, the child belt 90 is attached to the seat portion 40. The child belt 90 may be formed as a three-point belt having a crotch belt and a shoulder belt, but in the present embodiment, the child belt 90 is formed as a five-point belt having a crotch belt, a waist belt and a shoulder belt.

  As well shown in FIGS. 1 and 14, the child belt 90 includes a first belt member 91 and a second belt member 92. The first belt member 91 functions as a crotch belt. The second belt member 92 functions as a shoulder belt 92a and a waist belt 92b. One end of the first belt member 91 is fixed substantially at the center of the seat 45. A buckle 93 is attached to the other end of the first belt member 91. The first belt member 91 is provided with a belt cover 97. On the other hand, a pair of second belt members 92 are provided apart from each other in the width direction. The second belt member 92 extends from a pair of end regions 37 a located at both ends in the width direction in the waist region 37 including the connection position between the seat portion 45 and the back portion 50 of the seat portion 40. The pair of second belt members 92 may be connected to each other inside or on the back side of the seat portion 45. Each second belt member 92 extends through the tongue 94 and is folded back by the tongue 94 to define a shoulder belt 92a and a waist belt 92b as shown in FIG.

  As shown in FIGS. 1 and 2, the end portion of the second belt member 92 on the side of the shoulder belt 92 a passes through the child belt hole 51 of the back portion 50 and is connected to the belt length adjusting mechanism 96. As shown in FIGS. 2, 14, and 15, the belt length adjusting mechanism 96 includes a connecting metal fitting 96a to which a shoulder belt 92a is attached, an adjusting belt 96b connected to the connecting metal fitting 96a, and a front portion of the seat portion 45. And an adjustment belt chuck 96c provided on the head. The adjustment belt chuck 96c holds the adjustment belt 96b. By changing the gripping position of the adjustment belt 96b by the adjustment belt chuck 96c, the lengths of the waist belt 92b and the shoulder belt 92a, which are part of the second belt member 92, are adjusted.

  When such a child belt 90 is used, first, the child is seated on the child seat 10 and the tongue 94 is locked by the buckle 93. Next, the length of the waist belt 92 b and the shoulder belt 92 a is adjusted using the belt length adjusting mechanism 96, and the child seated on the child seat 10 can be fixed to the child seat 10 by the child belt 90.

  By the way, as described above, when the child seat 10 is installed in the second forward-facing state shown in FIG. 7, the child belt 90 is not used. Therefore, as shown in FIG. 14, in the present embodiment, a buckle receiving recess 46 is formed in the seat portion 40. The buckle receiving recess 46 is formed at the center and front position in the width direction of the seat portion 40. The adjustment belt chuck 96 c of the belt length adjustment mechanism 96 is disposed in the buckle receiving recess 46. Further, the adjustment belt 96b of the belt length adjustment mechanism 96 can be folded and accommodated in the buckle receiving recess 46 when not in use. Similarly, the first belt member 91 and the buckle 93 can also be accommodated in the buckle receiving recess 46 when not in use. The belt cover 97 through which the first belt member 91 has passed and the coupling fitting 96a of the belt adjusting mechanism may be accommodated in the buckle receiving recess 46 or in the above-described accommodating recess 25. You may make it do.

  Further, as shown in FIG. 14, the child seat body 20 has a storage recess 27 having a part of the bottom surface 28 at a position where each second belt member 92 extends. A pair of storage recesses 27 is provided corresponding to each second belt member 92. Each storage recess 27 can store the corresponding second belt member 92 when not in use. As described above, the second belt member 92 extends from the pair of end regions 37 a in the waist region 37 including the connection position between the seat 45 and the back 50 of the seat 40. Corresponding to the arrangement of the second belt member 92, each storage recess 27 is arranged in a pair of end regions 37 a in the waist region 37 including the connection position between the seat 45 and the back 50 of the seat 40. Has been.

  According to this embodiment, each of the storage recesses 27 that can store the second belt member 92 includes the position where the corresponding second belt member 92 extends as a part of the recess bottom surface 28, and the seat portion 40. Is formed. Therefore, the second belt member 92 when not in use can be formed in the storage recess 27 with a good appearance by being folded. In addition, two storage dents 27 are provided in the width direction so as to correspond to the extended position of the second belt member 92. Each storage recess 27 is located at both ends in the width direction in the waist region 37 including the connection position between the seat 45 and the back 50 of the seat 40. Accordingly, the storage recess 27 is arranged so as to be shifted outward in the width direction and rearward in the front-rear direction from a portion where the child mainly applies its own weight via the cover member 99 of the child seat 10. For this reason, the storage recess 27 does not deteriorate the sitting comfort of the child seat 10. As described above, according to the present embodiment, the child belt when not in use can be pleasingly stored without relying on a deep recess covering a wide area. The tongue 94 through which the second belt member 92 has passed may be stored in the storage recess 27 or may be stored in the storage recess 25 described above.

  In particular, in the present embodiment, the child seat main body 20 has a pair of lid members 89 attached on the seat main body portion 30. On the other hand, as shown in FIGS. 15 and 16, the seat body 30 is formed with an end recess 37 b in each end region 37 a of the waist region 37. Each lid member 89 is disposed so as to cover the corresponding end recess 37b. As shown in FIG. 15, the seat main body 30 has a pair of belt support members 34 that support the second belt members 92. Each belt support member 34 is disposed in the corresponding end recess 37b. A reinforcing rib 35 is provided in each end recess 37b. At least one reinforcing rib 35 is connected to the belt support member 34 in each end recess 37b. Each lid member 89 covers the end recess 37 b around the corresponding belt support member 34. Each lid member 89 has a storage recess 27 in which the second belt member 92 can be stored in a portion where each belt support member 34 is located.

  According to the present embodiment, the rigidity of the child seat body 20 can be enhanced by the reinforcing rib 35. In addition, the lid member 89 can improve the appearance by hiding the reinforcing rib 35. Further, when the lid member 89 is made of a relatively high strength material such as resin, the rigidity of the child seat body 20 can be further enhanced. On the other hand, when the cover member 89 is formed of a relatively soft material such as foamed polystyrene or rubber, the whole or a part of the surface of the cover member 89 is extremely effective in reducing the riding comfort due to the storage recess 27. Can be prevented. In particular, when the reinforcing rib 35 is provided in the end recess 37b and the lid member 89 is formed using a relatively soft material, both rigidity improvement and ride comfort improvement can be achieved.

  Further, in the present embodiment, the storage recess 27 includes the end surface of the belt support member 34 as a part of the recess bottom surface 28. More specifically, the belt support member 34 is formed in a cylindrical shape. The second belt member 92 extends from one opening of the cylindrical belt support member 34. One end face (top face) of the cylindrical belt support member 34 forms a part of the hollow bottom face 28. According to this embodiment, the support state of the second belt member 92 can be stabilized.

  Furthermore, according to the present embodiment, each end concave portion 37 b is formed on the surface of the seat portion 45 and the back portion 50 so as to follow the connection position between the side portion 55 and the seat portion 45 and the back portion 50. According to the present embodiment as described above, the second belt member 92 when not in use is folded and formed in the storage recess 27 with good appearance while ensuring the strength of the side portion 55 and maintaining the rigidity of the child seat 10. can do.

<Modification>
Note that various modifications can be made to the above-described embodiment. Hereinafter, an example of modification will be described.

  In the above-described embodiment, the claw piece 85 of the lock-off device 80 includes a proximal end extension portion 85a extending in the width direction from the flange portion 84, and a distal end claw portion 85b extending upward from the proximal end extension portion 85a. However, the present invention is not limited to this. For example, the claw piece 85 may have a tip claw portion that is provided in the device main body portion 81 and extends forward or backward. Also in such an example, the lock-off device 80 can be positioned with respect to the sheet main body 30 such that the device main body 81 slides in the groove 33. Therefore, it is possible to facilitate the attachment of the lock-off device 80 to the seat body 30.

  Further, unlike the above-described embodiment, the fastener 87 penetrates the reinforcing arm portion 65 from the rear side to the front side, and engages with a portion behind the slit 80a of the lock-off device 80. May be. In this example, the claw piece 85 may be provided in a portion in front of the slit 80 a of the lock-off device 80. Also in such a modification, the part which becomes one side of the slit 80a in the front-rear direction in the lock-off device 80 can be fixed to the seat body 30 by the fastener 87, and the lock-off device 80 The part which becomes the other side of the slit 80 a in the front-rear direction can be positioned on the sheet main body 30 by the engagement between the claw piece 85 and the flange portion 84 and the three-way frame 32. That is, the lock-off device 80 can be connected to the sheet main body 30 on both sides of the slit 80a opened downward. Thereby, the lock-off device 80 can be more reliably fixed to the sheet main body 30. In addition, deformation of the lock-off device 80 is prevented, and the lock-off device 80 can stably hold the seat belt 7.

5 Seat 7 Seat belt 7a Shoulder belt 7b Waist belt 8a Tongue 8b Buckle 10 Child seat 20 Child seat body 22 Clearance 23 Storage part 23a Holding rib 25 Storage recess 27 Storage recess 28 Bottom surface, recessed bottom surface 30 Seat body part 32 Three-sided frame 32a Front frame part 32b Rear frame portion 32c Upper frame portion 33 Groove 34 Belt support member 35 Reinforcing rib 37 Lumbar region 37a End region 37b End recess 39 Holding hole 40 Seat portion 45 Seat portion 46 Buckle receiving recess 47 Swelling portion 50 Back portion 51 Child belt hole 52 Fastening hole 53 Holding bulging part 54 Guide member hole 55 Side part 56a Notch 57 Folding material 57a Base end part 57b Tip part 58 Rib material 59 Hook 60 Clip member 61 Belt passing gap 61a Belt guiding gap 65 Reinforcing arm Part 65a Upper end part 65b Lower end part 65c Width direction inner surface 66 Front protrusion 70 Base 70a Front surface 70b First lower surface 70c Second lower surface 71 Guide surface 72 Guide protrusion 73a Front wall surface 73b Rear wall surface 73c Side wall surface 73d Bottom surface 77 Convex portion 80 Lock-off device 80a Slit 80b Fastener hole 81 Device main body part 82 Oscillating piece 84 Flange part 84a Holding recess 85 Claw piece 85b Tip claw part 85a Base end extension part 86 Projection piece 87 Fastener 89 Lid member 90 Child belt 91 First belt member 92 Second belt member 92a Shoulder belt 92b Waist belt 93 Tongue 94 Buckle 96 Belt length adjusting mechanism 96a Connecting bracket 96b Adjusting belt 96c Adjusting belt chuck 97 Belt cover 99 Cover material 100 Belt guide member 101 Slotted hole 102 Slotted hole 103 Slotted hole 105 Guide space, guide hole 106 Slit 110 Strap member 10a mounting portion

Claims (10)

A child seat arranged on a seat of a vehicle equipped with a seat belt,
A seat body portion having a seat portion having a seat portion and a back portion, and a reinforcing arm portion provided behind the seat portion;
A lock-off device attached to the seat body and having a slit through which the seat belt can pass and capable of gripping the seat belt in the slit,
The lock-off device has a device body portion in which the slit is formed, and a flange portion extending from the device body portion,
Each reinforcing arm portion is connected to the seat portion at an upper end portion and a lower end portion, and is spaced from the seat portion between the upper end portion and the lower end portion to form a gap,
A three-sided frame is formed between the seat part and the reinforcing arm part, and the three-sided frame defines a groove that opens downward and penetrates in the width direction, forming an upper end portion of the gap,
The device body of the lock-off device is disposed in the groove such that the slit extends along the groove;
The lock-off device further includes a claw piece that sandwiches the three-way frame in the width direction with the flange portion.   The child seat according to claim 1, wherein the lock-off device has a plurality of claw pieces that are spaced apart from each other.   3. The child seat according to claim 1, wherein the claw piece includes a base end extension portion extending in a width direction from the flange portion and a front end claw portion extending upward from the base end extension portion.   The lock-off device includes at least one of a fastener that penetrates the seat portion from the front side to the rear side and a fastener that penetrates the reinforcing arm portion from the rear side to the front side. The child seat as described in any one of Claims 1-3 currently fixed to. The slit of the lock-off device opens downward;
The fastener passes through the seat portion from the front side to the rear side, and engages with a portion that is forward of the slit of the lock-off device,
The child seat according to claim 4, wherein the claw piece is provided in a portion that is located behind the slit of the lock-off device. The slit of the lock-off device opens downward;
The fastener penetrates the reinforcing arm portion from the rear side to the front side, and engages with a portion that is behind the slit of the lock-off device,
5. The child seat according to claim 4, wherein the claw piece is provided in a portion in front of the slit of the lock-off device. As fasteners for fixing the lock-off device to the seat main body, wherein the seat portion only fasteners passing through to the rear side from the front side it is provided, according to any one of claims 1 to 5 child seat. The lock-off device has a protruding piece provided on the device body or the flange,
The protruding piece protrudes in a direction parallel to the groove from the device main body portion or the flange portion in a state where the lock-off device is attached to the sheet main body portion, and into a holding hole formed in the sheet main body portion. The child seat according to any one of claims 1 to 7, which is inserted. A child seat arranged on a seat of a vehicle equipped with a seat belt,
A seat body portion having a seat portion having a seat portion and a back portion, and a reinforcing arm portion provided behind the seat portion;
A lock-off device attached to the seat body and having a slit through which the seat belt can pass and capable of gripping the seat belt in the slit,
The lock-off device has a device body portion in which the slit is formed, and a flange portion extending from the device body portion,
Each reinforcing arm portion is connected to the seat portion at an upper end portion and a lower end portion, and is spaced from the seat portion between the upper end portion and the lower end portion to form a gap,
A three-sided frame is formed between the seat part and the reinforcing arm part, and the three-sided frame defines a groove that opens downward and penetrates in the width direction, forming an upper end portion of the gap,
The device body of the lock-off device is disposed in the groove such that the slit extends along the groove;
The lock-off device has a protruding piece provided on the device body or the flange,
The protruding piece protrudes in a direction parallel to the groove from the device main body portion or the flange portion in a state where the lock-off device is attached to the sheet main body portion, and into a holding hole formed in the sheet main body portion. Child seat inserted. The child seat according to claim 8 or 9 , wherein the protruding piece is provided at a portion above the slit of the lock-off device.

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