Childcare equipment with seat and crotch belt cover
The childcare device with a seat and crotch belt cover addresses the complexity and obstruction issues of existing child seats by using a contact holding mechanism and elastic material to keep the crotch belt out of the way, ensuring ease of use and hygiene.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- GRACO CHILDRENS PROD INC
- Filing Date
- 2022-02-07
- Publication Date
- 2026-06-10
Smart Images

Figure 0007872673000001 
Figure 0007872673000002 
Figure 0007872673000003
Abstract
Description
Technical Field
[0001] This invention relates to a child-care device with a seat and a crotch belt cover, and more particularly to a child-care device with a seat having a crotch belt and a crotch belt cover for the crotch belt.
Background Art
[0002] Child seats are provided with shoulder belts, waist belts, and crotch belts for restraining children seated on the seat. When a child is placed on or removed from the child seat, in order to prevent these belts from getting in the way, for example, technologies such as Patent Document 1 (Japanese Patent Application Laid-Open No. 2008-290587) and Patent Document 2 (Japanese Patent Application Laid-Open No. 2010-274884) are known.
[0003] Patent Document 1 discloses that a first magnet fixed to a belt cover is held by a second magnet provided on the side of the seat body, thereby maintaining the seating space as an open space without the intervention of the seat belt.
[0004] Also, the crotch belt cover of Patent Document 2 discloses that since the crotch belt can be made to stand on its own in a posture inclined forward of the child seat, the crotch belt is less likely to get in the way when a child gets on or off the seat part.
Prior Art Documents
Patent Documents
[0005]
Patent Document 1
Patent Document 2
Summary of the Invention
Problems to be Solved by the Invention
[0006] The child seat disclosed in Patent Document 1 above can maintain an open space without the need for a seat belt when placing a child in or taking them out, but its structure is complex. Furthermore, the crotch belt cover disclosed in Patent Document 2 above stands upright in a tilted forward position, which still gets in the way when placing a child in or taking them out.
[0007] The present invention was made to solve the above-mentioned problems, and its purpose is to provide a childcare device with a seat and a crotch belt cover that have a simple structure and in which the crotch belt does not get in the way when putting a child in or taking a child out. [Means for solving the problem]
[0008] For this purpose, a childcare device with a seat according to one aspect of the present invention comprises a seat body having a seat portion and a backrest portion, a crotch belt for restraining the crotch of a child seated on the seat body, a buckle provided at the end of the crotch belt, a crotch belt cover that covers the crotch belt and buckle so as not to come into contact with the child, and a contact holding means for holding the end of the crotch belt cover and the end of the seat portion in contact with each other.
[0009] Preferably, the contact holding means includes an engaging portion provided at the tip of the crotch belt cover and an engaged portion provided at the tip of the seat surface portion that is detachably engaged with the engaging portion.
[0010] Preferably, the crotch belt cover includes a belt holding portion through which the crotch belt passes, and a buckle contact portion provided at the tip of the belt holding portion and covering the back surface of the buckle, wherein the buckle contact portion has an upward protrusion that extends upward from the buckle, and an engaging portion is provided on the upward protrusion.
[0011] Preferably, the device further includes a means for maintaining the folded state, which keeps the upper protruding portion folded towards the belt holding portion.
[0012] Preferably, the crotch belt cover is made of a material that generates elastic restorative force to maintain its original shape against deformation.
[0013] Preferably, the childcare device with a seat is a child car seat used in automobiles.
[0014] In another aspect of the present invention, the crotch belt cover is provided on the seat body of a childcare device with a seat, and covers the crotch belt that restrains the crotch of a child seated on the seat body, and comprises a belt holding portion that passes through the crotch belt and a buckle contact portion that covers the back surface of a buckle provided at the tip of the belt holding portion, and the tip of the buckle contact portion is provided with an engaging portion that is detachably connected to an engaged portion provided at the tip of the seat body. [Effects of the Invention]
[0015] According to the present invention, the crotch strap does not get in the way when getting a child on or off the stroller, and the structure is simple. [Brief explanation of the drawing]
[0016] [Figure 1] This is a perspective view of the child seat according to this first embodiment. [Figure 2] This is a front view showing the crotch belt cover attached to the crotch belt, with all belts fastened. [Figure 3] This diagram shows the crotch belt cover, with (A) being a front view and (B) being an unfolded view. [Figure 4] This is a schematic diagram illustrating the position change of the crotch belt according to this first embodiment, where (A) shows the state in which the crotch belt, shoulder belt, and waist belt are disconnected, and (B) shows the state in which these belts are connected. [Figure 5] This is a front view showing a modified version of the crotch belt cover. [Figure 6] This figure shows the inner seat of a child seat according to this second embodiment, where (A) is a perspective view and (B) is a partial cross-sectional view of (A). [Modes for carrying out the invention]
[0017] Embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and their description will not be repeated.
[0018] (Regarding the outline of the child seat) Referring to FIG. 1, the outline of the child seat 1 as a child-carrying device with a seat according to the present embodiment will be described. In the description of the child seat 1, the front-back direction corresponds to the front-back direction of the child sitting on the child seat 1. The width direction corresponds to the left-right direction of the child sitting on the child seat 1. Also, the inner side corresponds to the side facing the child sitting on the child seat 1. The outer side corresponds to the side opposite to the child sitting on the child seat 1.
[0019] The basic structure of the child seat 1 according to the present embodiment may be the same as that of a general child seat, which is used in an automobile, particularly placed on the seat of an automobile, and is a device for safely allowing a child such as an infant or a toddler to ride. The child seat 1 includes a base body 2 and a seat body 3.
[0020] The base body 2 is placed on the seat cushion of a passenger car and supports the seat body 3 from below. Although not shown, a leg support extending toward the floor surface of the passenger car may be provided at the front end of the base body 2, and an ISOFIX connected to the anchor of the seat cushion of the passenger car may be provided at the rear end of the base body 2. Above the base body 2, a seat body 3 rotatably supported with respect to the base body 2 is provided.
[0021] 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. In FIG. 1, a state where a soft cloth member, for example, a covering member such as a cushion material, is mounted on the seat body 3 is shown.
[0022] A child sits in the seat body 3. For this reason, the seat body 3 is also called a child's seat and has a seat surface 32 that supports the child's buttocks and a backrest 31 that rises from the rear of the seat surface 32 and supports the child's back.
[0023] The front end of the seat portion 32 is provided with an engaged portion 38 that connects to an engaging portion 48 of the crotch belt cover 4, which will be described later. The front end of the seat portion 32 is the portion located in front of the base end of the crotch belt 12 (the point of contact between the lower end of the crotch belt 12 and the seat portion 32), and is preferably the area around the front end of the seat portion 32, such as the top surface, side surface, or back surface of the front end of the seat portion 32. The case in which an inner seat is provided on the seat portion 32 will be described in Embodiment 2. The engaged portion 38 will be described later.
[0024] A headrest to support the child's head may be provided above the backrest portion 31. The backrest portion 31 may be provided so as to be able to recline by tilting relative to the seat portion 32, or its tilt angle relative to the seat portion 32 may be fixed. In this case, the seat body 3 may be provided so as to be able to slide relative to the base body 2.
[0025] The child seat 1 is equipped with multiple belts to restrain the child's body. The backrest 31 is equipped with a pair of shoulder belts 10 to restrain the child's shoulders. The shoulder belts 10 are positioned to pass through the backrest 31. The shoulder belts 10 are equipped with tubular shoulder pads.
[0026] Furthermore, the seat portion 32 is provided with a crotch belt 12 that extends between the thighs of a child seated on the seat body 3, and a waist belt 11 that extends across the seat body 3 in the left-right direction to restrain the child's waist. The lower end of the crotch belt 12 is positioned to pass through the seat portion 32 and is slidably mounted in the front-rear direction in the central part of the seat portion 32 in the width direction. The movement of this crotch belt 12 will be described in Embodiment 2. In addition, the waist belts 11 are positioned on both the left and right sides, and one end of each waist belt 11 is fixed to the respective sides of the seat portion 32 in the width direction.
[0027] The other ends of these belts 10, 11, and 12 are detachably connected near the child's abdomen by a buckle 13 provided at the end of the crotch belt 12. In this embodiment, the shoulder belt 10 and waist belt 11 are formed from the same long belt, and a vertically movable tong 14 is provided at an intermediate position (Figure 4(A)). This tong 14 is detachably connected to the buckle 13 provided at the end of the crotch belt 12. These belts 10, 11, and 12 are made of, for example, cloth.
[0028] The crotch strap 12 and buckle 13 are equipped with a detachable crotch strap cover 4. The crotch strap cover 4 covers the crotch strap 12 and buckle 13 to prevent them from touching the child. The crotch strap cover 4 will be described in detail below.
[0029] (Regarding the crotch strap cover) Figures 2 and 3(A) show the crotch belt cover 4 in use, and Figure 3(B) is an exploded view of the crotch belt cover 4. In particular, Figure 2 shows the crotch belt cover 4 attached to the waist belt 11 and buckle 13, and the shoulder belts 10 and waist belt 11 connected to the buckle 13. The crotch belt cover 4 will be described in detail with reference to Figures 2 and 3.
[0030] As shown in Figure 2, the crotch belt cover 4 is for covering the crotch belt 12 and buckle 13. The crotch belt cover 4 only needs to cover the side that comes into contact with the child.
[0031] The crotch belt cover 4 is made of a material that generates elastic restorative force to maintain its original shape against deformation. Specifically, the crotch belt cover 4 is flexible as a whole and may have a multi-layer structure in which porous urethane is sandwiched between fabrics, for example, and may be made of fabric. If the crotch belt cover 4 is made of fabric, it may be configured to have elasticity by overlapping two or more pieces of fabric, for example. The crotch belt cover 4 may also have cushioning (elasticity) due to its thickness. The thickness of the crotch belt cover 4 is preferably, for example, 0.2 cm or more and 1.5 cm or less.
[0032] The crotch belt cover 4 has a roughly spatula-like shape, becoming wider towards the tip (upper) side, and includes a belt holding portion 41 through which the crotch belt 12 passes, and a buckle contact portion 45 provided at the tip of the belt holding portion 41 and covering the back surface of the buckle 13. In particular, as shown in Figure 3(A), the belt holding portion 41 becomes narrower and cylindrical when in use, attached to the crotch belt 12. The buckle contact portion 45 maintains its wide, plate-like shape even in use.
[0033] As shown in Figure 3(B), the belt holding portion 41 includes a back region 41a that contacts the child's crotch and front regions 41b, 41b that connect from both ends of the back region 41a. The back region 41a is provided with fixing portions 44 to fix the crotch belt 12 so that its vertical position does not shift. The fixing portions 44 are not particularly limited and can be, for example, a long hook-and-loop fastener or a string. The front regions 41b, 41b are provided with upper connectors 42a, 42a and lower connectors 42b, 42b facing each other on the left and right sides. These connectors 42a, 42b are not particularly limited and can be, for example, a pair of hooks, hook-and-loop fasteners, buttons and buttonholes.
[0034] At the boundary between the front area 41b,41b and the back area 41a of the crotch belt cover 4 (dashed line in Figure 3(B)), the front area 41b,41b is folded onto the back area 41a, and the connecting members 42a,42b are connected. By connecting these connecting members 42a,42b, the belt holding portion 41 becomes cylindrical. This allows the belt holding portion 41 to hold the crotch belt 12. Furthermore, the crotch belt cover 4 can be removed from the crotch belt 12 simply by releasing the connection of the connecting members 42a,42b. This makes it hygienic, as the crotch belt cover 4 can be easily removed and washed even if it becomes dirty.
[0035] As shown in Figures 2 and 3(A), the buckle contact portion 45 is, for example, roughly diamond-shaped overall, and has a main body portion 45a, an upper protruding portion 46 located above the main body portion 45a and extending upward from the buckle 13, and lateral protruding portions 47 located on both sides of the main body portion 45a and extending to the left and right from the buckle 13. The buckle contact portion 45 is planar and contacts the back side of the buckle 13, but does not contact the front side (operating part side) of the buckle 13.
[0036] In particular, as shown in Figure 2, the upper protruding portion 46 is the part that protrudes from above the tongs 14 when the tongs 14 are connected to the buckle 13. An engaging portion 48 is provided at the tip of the buckle contact portion 45. The engaging portion 48 is detachably connected to an engaged portion 38 provided at the tip of the seat portion 32. As shown in Figure 4(A), by connecting this engaging portion 48 and the engaged portion 38, it becomes possible to hold the tip of the crotch belt cover 4 and the tip of the seat portion 32 in contact. This engaging portion 48 and the engaged portion 38 function as a contact holding means.
[0037] In particular, as shown in Figure 2, the lateral protrusions 47 are designed to prevent the tongs 14 from hitting a child when the tongs 14 are connected to the buckle 13 provided at the end of the crotch belt 12.
[0038] Figures 1 to 3 show a hook as an example of a contact holding means (engaging part 48, engaged part 38), but any means that allows the crotch belt cover 4 and the tip of the seat part 32 to contact and hold each other is acceptable, and may include connectors such as hook-and-loop fasteners, buttons and buttonholes, protrusions and engagement holes, or hooks and locking straps. Furthermore, the contact holding means is not limited to the connectors described above, and for example, the seat part 32 may have an insertion hole into which the tip of the crotch belt cover 4 is inserted.
[0039] (Regarding usage examples) Figure 4(A) shows that belts 10, 11, and 12 are disconnected. Figure 4(B) shows that belts 10, 11, and 12 are connected. An example of use will be explained with reference to Figures 4(A) and 4(B).
[0040] The following describes how to place a child in the child seat 1. First, as shown in Figure 4(A), the crotch belt cover 4, which holds the crotch belt 12, is placed along the seat surface of the seat portion 32, and the engaging portion 48 of the crotch belt cover 4 is connected to the engaged portion 38 of the seat portion 32. Furthermore, the shoulder belts 10 and waist belt 11 are placed to the sides of the seat portion 32. In this state, the child is placed in the seat body 3. As a result, the crotch belt 12 is held in a state that extends forward along the seat portion 32, so the crotch belt 12 does not get in the way and the child can be placed in the seat body 3.
[0041] Next, the connection between the engaging portion 48 of the crotch belt cover 4 and the engaged portion 38 of the seat portion 32 is released. Because the crotch belt cover 4 is made of a material with elastic restorative force, it tends to stand up slightly toward the child's crotch side (rear). Furthermore, as shown in Figure 4(B), the tongues 14 provided on the shoulder belts 10 and waist belt 11 are connected to the buckle 13 provided at the end of the crotch belt 12. In this state, the belts 10, 11, and 12 are put on the child. This makes it easy to put the child on the belts 10, 11, and 12.
[0042] To remove a child from the child seat 1, the connection between the tongues 14 on the shoulder belts 10 and waist belt 11 and the buckle 13 at the end of the crotch belt 12 is released. Furthermore, as shown in Figure 4(A), the crotch belt cover 4, which holds the crotch belt 12, is aligned with the seat surface of the seat portion 32, and the engaging portion 48 of the crotch belt cover 4 is connected to the engaged portion 38 of the seat portion 32. In addition, the shoulder belts 10 and waist belt 11 are moved to the sides of the seat portion 32 so as not to get in the way. This allows the child to be removed from the seat body 3 without the crotch belt 12 getting in the way.
[0043] In this embodiment, the crotch belt cover 4 connects an engaging portion 48 provided at the tip of the crotch belt cover 4 with a receiving portion 38 provided at the tip of the seat portion 32, thereby allowing the tip of the crotch belt cover 4 and the tip of the seat portion 32 to be held in contact with each other. As a result, when placing a child in the child seat 1, the tip of the crotch belt 12 can be held in contact with the tip of the seat portion 32, so the crotch belt 12 does not get in the way.
[0044] In particular, with child seats 1 used in vehicles, the height of the vehicle's entrance is narrow, making it impossible to place a child in from a high position. Instead, the child is placed in the seat while their back and buttocks rub against the seat surface 32. In such cases, conventional crotch belt covers cause the child's back and buttocks to hit the crotch belt, pulling it further into the seat surface 32. As a result, the crotch belt gets trapped under the child's back and buttocks, becoming an obstruction. The crotch belt cover 4 of this embodiment can be held in contact with the front end of the seat surface 32. Therefore, even if a child is placed in the seat while rubbing against the seat surface 32, the crotch belt 12 does not move backward, and thus the crotch belt 12 does not become an obstruction.
[0045] Furthermore, as shown in Figure 4(A), instead of fixing the crotch belt 12 at an intermediate position in the vertical direction, the tip of the crotch belt 12 can be fixed to the seat portion 32. Therefore, when placing a child on the seat, even if the crotch belt cover 4 rubs against the child's back or buttocks to some extent, the crotch belt 12 will not move backward, making it easy to place and remove the child. Moreover, when placing and removing a child, the part that rubs against the child's back or buttocks is the crotch belt cover 4, not the crotch belt 12, so it does not cause discomfort to the child. Furthermore, even when belts 10, 11, and 12 are fastened, it is the crotch belt cover 4 that touches the child, so it does not cause discomfort to the child.
[0046] (Regarding the modification of the crotch belt cover) A modified example of the crotch belt cover will be described with reference to Figure 5. The crotch belt cover 4A shown in Figure 5 is substantially the same shape as the crotch belt cover 4 described above, but differs in that it further includes a means 49A for maintaining the folded state.
[0047] The folding state maintenance means 49A maintains the upper protruding portion 46 in a folded state toward the belt holding portion 41. Specifically, a hook that engages with the engaging portion 48 is shown as an example of the folding state maintenance means 49A. As indicated by the arrow, the folding state maintenance means 49A folds the upper protruding portion 46 downward and engages with the engaging portion 48. The folding state maintenance means 49A is not limited to a connector such as a hook, but may simply be a hole or string into which the upper protruding portion 46 can be inserted. In other words, the folding state maintenance means 49A does not need to engage with the engaging portion 48, as long as it can maintain the upper protruding portion 46 in a folded state.
[0048] As described above, the folding state maintenance means 49A allows the upper protruding portion 46 to be held in a folded state, so that the engaging portion 48 does not get in the way even when the buckle 13 and the tongs 14 are engaged. Furthermore, the folding state maintenance means 49A allows the buckle contact portion 45 to be made more compact.
[0049] (Regarding Embodiment 2) The child seat according to Embodiment 2 will be described with reference to Figures 6(A) and 6(B). The crotch belt cover 4 used in this embodiment is substantially the same shape as the crotch belt cover 4 of Embodiment 1 described above, but differs in that it is equipped with an inner seat 5. In Figure 6(B), the front of the inner seat 5 is indicated by arrow A.
[0050] In this embodiment, the child seat has an inner seat 5 placed above the backrest 31 and seat surface 32 of the seat body 3 (Figure 1). This inner seat 5 is used especially when the child is small and functions as part of the seat body. Note that the child seat is not shown in Figure 6(A).
[0051] Referring to Figure 6(A), the inner seat 5 includes an inner backrest 51 that contacts the child's back and functions as a backrest 31, and an inner seat 52 that contacts the child's buttocks and legs and functions as a seat 32.
[0052] In particular, the inner seat portion 52 has a bottom surface portion 53, a pair of side wall portions 54 rising from both ends of the bottom surface portion 53, and a lower wall portion 55 rising from the lower end of the bottom surface portion 53. The bottom surface portion 53 is provided with an elongated hole 56 through which the crotch belt 12 passes. Near the corner where the bottom surface portion 53 and the lower wall portion 55 intersect, there is an engaged portion 38B that engages with the engaging portion 48 of the crotch belt cover 4. The engaged portion 38B is a connector such as a hook, as in Embodiment 1, but is not limited to that. Also, although the engaged portion 38B is provided on the inner side of the lower wall portion 55, it may be provided on the outer side or on the back surface of the bottom surface portion 53.
[0053] Referring to Figure 6(B), the crotch belt 12 is attached to the seat body 3 of the child seat 1 so as to be movable in the front-to-back direction. Specifically, the crotch belt 12 is held in a manner that allows it to move in the front-to-back direction by a rod-shaped member 36B that extends along the front-to-back direction of the child seat 1. The lower end of the crotch belt 12 is folded back to form an annular portion, which passes through the rod-shaped member 36B. To allow the crotch belt 12 to move in the front-to-back direction, the inner seat 5 is provided with an elongated hole 56 that is long in the front-to-back direction. When placing a child in the child seat, the crotch belt 12 is moved forward to widen the child's accommodating space, and when attaching belts 10, 11, and 12 to the child, the crotch belt 12 is manually moved until its base end (the portion protruding outward from the elongated hole 56) contacts the child's crotch.
[0054] When the crotch belt cover 4 connects the engaging portion 48 and the engaged portion 38B, it takes on an upward-facing arc shape, as shown in Figure 6(B). As described above, the crotch belt cover 4 is made of a material that generates an elastic restoring force to maintain its original shape against deformation, so the crotch belt 12 moves backward along the rod-shaped member 36B, as indicated by the arrow. As described above, the base end of the crotch belt 12 is better located closer to the child's crotch and preferably on the rear end side of the elongated hole 56. Therefore, when the engagement between the engaging portion 48 and the engaged portion 38B is released, the crotch belt 12 gradually moves backward due to the elastic restoring force of the crotch belt cover 4, and stops moving when it hits the child's crotch, thus reducing the effort required from the worker and providing high convenience.
[0055] In Embodiment 1, the crotch belt cover 4 is provided along the seat surface 32, but in this embodiment, the crotch belt cover 4 is not provided along the bottom surface 52 which serves as the seat surface 32. In short, the crotch belt cover 4 only needs to have its tip attached to the tip of the seat surface 32, and the rest of the crotch belt cover 4 may be floating away from the seat surface 32.
[0056] In the above embodiment, the childcare device with a seat was described as a child car seat, but it is not limited to this; any childcare device with a seat that has a crotch belt, such as a stroller, baby rack, or childcare chair, is acceptable.
[0057] Furthermore, although the upper protruding portion 46 of the buckle contact portion 45 in this embodiment 1 is formed from the same material as the main body portion 45a, it may be made from a different material. For example, the upper protruding portion 46 may be a belt sewn to the upper position of the main body portion 45a, and the upper protruding portion 46 itself may be an engaging portion 48 that can be hooked onto a string (engaged portion 38) provided on the tip side of the seat surface portion 32.
[0058] In Embodiments 1 and 2, the crotch belt cover 4 was used together with a childcare device with a seat, but it may also be provided as a standalone crotch belt cover 4.
[0059] Although embodiments of this invention have been described above with reference to the drawings, this invention is not limited to the illustrated embodiments. Various modifications and variations can be made to the illustrated embodiments within the same scope as this invention, or within the equivalent scope. [Explanation of symbols]
[0060] 1 Child seat, 2 Base body, 3 Seat body, 4,4A Crotch belt cover, 12 Crotch belt, 13 Buckle, 31 Backrest, 32 Seat, 38,38B Engaged parts, 41 Belt holding part, 45 Buckle contact part, 46 Upper protrusion, 47 Side protrusion, 48 Engaged part, 49A Folded state maintenance means.
Claims
1. A seat body having a seat and a backrest, A crotch belt that restrains the crotch of a child seated on the aforementioned seat body, A buckle is provided at the end of the aforementioned crotch strap, A crotch strap cover that covers the crotch strap and the buckle so that they do not come into contact with the child, The system includes a contact holding means for holding the tip of the crotch belt cover and the tip of the seat surface in contact with each other. The aforementioned crotch belt cover is made of a material that generates an elastic restorative force that causes it to return to its original shape in the event of deformation. A childcare device with a seat, wherein when the holding by the contact holding means is released, the crotch belt is moved backward toward the crotch of the child seated in the seat body by the elastic restoring force.
2. The childcare device with a seat according to claim 1, wherein the contact holding means includes an engaging portion provided at the tip of the crotch belt cover and an engaged portion provided at the tip of the seat surface portion that is detachably engaged with the engaging portion.
3. The crotch belt cover includes a belt holding portion through which the crotch belt passes, and a buckle contact portion provided at the tip of the belt holding portion and covering the back surface of the buckle. The buckle contact portion has an upward protrusion that extends upward from the buckle, The childcare device with a seat according to claim 2, wherein the engaging portion is provided on the upper protruding portion.
4. The childcare device with a seat according to claim 3, further comprising a means for maintaining the folded state for maintaining the upper protruding portion in a folded state toward the belt holding portion.
5. The childcare device with a seat according to any one of claims 1 to 4, wherein the childcare device with a seat is a child seat used in an automobile.
6. A crotch belt cover provided on the seat body of a childcare device with a seat, for covering the crotch belt that restrains the crotch of a child seated in the seat body, A belt holding portion that passes through the aforementioned crotch belt, The belt retaining portion includes a buckle contact portion that covers the back surface of the buckle, provided at the tip of the belt retaining portion. The tip of the buckle contact portion is provided with an engaging portion that is detachably connected to an engaging portion provided at the tip of the seat body. The buckle contact portion has an upward protrusion that extends upward from the buckle, The aforementioned upper overhang is provided with the aforementioned engaging portion. A crotch belt cover further comprising a means for maintaining the folded state, which keeps the upper protruding portion folded toward the belt holding portion and engages with the engaging portion.