JP5739279B2 - Bicycle infant seat device - Google Patents

Description

  The present invention relates to an infant seat apparatus attached to a handle of a bicycle, and more particularly to an infant seat apparatus for a bicycle that easily changes (deforms) into a convenient front car when the infant seat apparatus becomes unnecessary as an infant seat.

2. Description of the Related Art Conventionally, various seat devices that are attached near a handle in front of a saddle and on which an infant can sit, and bicycles that include such a seat device have been proposed.
For example, Japanese Patent Laying-Open No. 2009-56880 (Patent Document 1) discloses an infant seat device for a bicycle that can change the pull-out position of the seat belt when the infant is seated. Furthermore, Japanese Patent Laying-Open No. 2009-67126 (Patent Document 2) discloses an infant seat device for a bicycle provided with a cowling (windshield) that can ensure a forward view. All of the infant seat apparatuses disclosed in these patent documents are fixed by using a bicycle handle and a handle stem.

  On the other hand, if it is not necessary to place an infant at this position of the bicycle, a car is often attached before the luggage is placed. For example, Japanese Patent Laying-Open No. 2006-205988 (Patent Document 3) discloses such a front car (FIGS. 1 and 2).

JP 2009-56880 A JP 2009-67126 A JP 2006-205988 A

By the way, when the infant grows up and the infant himself / herself rides a bicycle, or the infant's weight exceeds the upper limit weight of the infant seat apparatus, the infant seat apparatus becomes unnecessary. It is not impossible to use the infant seat apparatus as a front car as it is. In particular, there are users who do not like to reattach the infant seat device to the front car in terms of cost.
However, if the infant seat device is to be used as a front car, the headrest (head guard), seat belt, belt buckle, cowling, handlebar for the infant to hold, footrest and cushion, etc. It is an unnecessary part as a basket, and even gets in the way when loading a load. Moreover, since the infant seat apparatus is not designed assuming that these unnecessary parts are removed, it may be impossible to remove them. Even if it can be removed, it may be difficult to remove, and in some cases, unnecessary parts may not be removed unless the infant seat device is removed from the bicycle.

Furthermore, the saddle side (the rear side of the bicycle) of the infant seat device has a structure inclined to the saddle side so that the infant can lean against it when the infant rides, so a rectangular parallelepiped shape that can secure a large capacity is used as a preferred front basket. Hard to do. That is, even if the infant seat device is to be transferred to the front car, it cannot be a convenient front car.
The present invention has been made in view of the above-described problems, and is an infant seat device for bicycles. When the bicycle is not used as an infant seat, the bicycle can be easily changed to a convenient front basket. An object of the present invention is to provide an infant seat device.

In order to achieve the above-mentioned object, the present invention takes the following technical means.
The infant seat device for bicycles according to the present invention is attached to a handle of a bicycle. The infant seat device includes a seat main body having a seat portion on which an infant sits, a cover that is detachably provided on the seat main body, and a back on which an infant sitting on the seat abuts, is attached to the cover, and sits on the seat portion. And a seat belt for restraining the infant. When the cover is detached from the seat body, the seat belt is separated from the seat body together with the cover.

Preferably, the seat belt includes a side belt that restrains at least one of a shoulder and an abdomen of an infant sitting on a seat from both the left and right sides, and when the cover is detached from the seat body, the side belt is provided. Can be configured to be detached from the seat body together with the cover.
More preferably, the seat belt includes a side belt that restrains at least one of a shoulder and an abdomen of an infant sitting on a seat from both the left and right sides, and rises from the crotch of the infant, and a buckle is attached to the side belt via a buckle And a bottom belt connected to each other, and when the cover is detached from the seat body, the side belt and the bottom belt can be separated from the seat body together with the cover.

More preferably, the cover has a substantially planar shape, and a back of an infant sitting on the seat is in contact with the planar shape portion, and the side belt and the bottom belt are attached to the cover. Can be configured.
More preferably, the cover is substantially L-shaped, and includes a back cover portion on which a back of an infant sitting on the seat portion abuts and a seat surface cover portion on which the infant's buttocks abuts. A belt may be attached to the back cover, and the bottom belt may be attached to the seat cover.

More preferably, the headrest is attached to the cover and protects the head of an infant sitting on the seat, and when the cover is detached from the seat body, the seat belt and the headrest together with the cover It can comprise so that it may detach | leave from a seat main body.
More preferably, the leg resting member disposed on the front side of the seat portion, and the leg resting member is pivotally supported on the seat portion via a pivot shaft from the first posture and the first posture. The posture is freely changeable to a second posture that swings downward around the pivot, and the legrest member is held in the first posture so that the legrest member cannot swing downward from the first posture. The lock member can be further provided with a holding position and a lock member that is freely changeable to an open position that allows the leg resting member to swing downward from the first posture.

  According to the infant seat device for a bicycle according to the present invention, when it is not used as an infant seat, it can be easily changed to a convenient front basket.

1 is an overall perspective view of a bicycle equipped with an infant seat device for bicycles according to a first embodiment of the present invention. It is the whole bicycle perspective view when changing the infant seat apparatus for bicycles shown in Drawing 1 to a front basket. It is a disassembled perspective view of the infant seat apparatus for bicycles shown in FIG. It is an expansion perspective view (the 1) of the infant seat apparatus for bicycles shown in FIG. It is an expansion perspective view (the 2) of the infant seat apparatus for bicycles shown in FIG. It is a side view of the infant seat apparatus for bicycles shown in FIG. It is a top view of the infant seat apparatus for bicycles shown in FIG. It is a bottom view of the infant seat apparatus for bicycles shown in FIG. It is a front view of the infant seat apparatus for bicycles shown in FIG. It is a rear view of the infant seat apparatus for bicycles shown in FIG. It is a top view of the back cover of the state set to the seat main body. It is sectional drawing of the back cover of the state set to the seat main body. It is a front view of the back cover shown in FIG. It is a rear view of the back cover shown in FIG. It is a disassembled perspective view of the infant seat apparatus for bicycles concerning the 2nd Embodiment of this invention. It is an expansion perspective view of the infant seat apparatus for bicycles shown in FIG. It is a disassembled perspective view of the infant seat apparatus for bicycles concerning the 3rd Embodiment of this invention. It is an expansion perspective view of the infant seat apparatus for bicycles shown in FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the following description, the same parts are denoted by the same reference numerals even in different embodiments. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.
<First Embodiment>
FIG. 1 is an overall perspective view of a state in which a bicycle infant seat device (hereinafter sometimes simply referred to as “infant seat device”) 100 according to a first embodiment of the present invention is attached to a bicycle 400. FIG. 2 is an overall perspective view showing a state in which the infant seat apparatus 100 is changed to a front car (hereinafter sometimes simply referred to as “car”). The infant seat apparatus 100 can be easily changed to a car that can be easily removed by removing parts unnecessary for a car (necessary for an infant seat) while attached to the bicycle 400.

  3 is an exploded perspective view of the infant seat apparatus 100, FIGS. 4 and 5 are enlarged perspective views of the infant seat apparatus 100, and FIG. 6 is a side view of the infant seat apparatus 100. Is a top view of the infant seat apparatus 100, FIG. 8 is a bottom view of the infant seat apparatus 100, FIG. 9 is a front view of the infant seat apparatus 100, and FIG. 10 is a rear view of the infant seat apparatus 100. 11 is a top view of the back cover 120 set on the seat body 110, and FIG. 12 is a cross-sectional view of the back cover 120 set on the seat body 110. FIG. 14 is a front view of the back cover 120, and FIG. 14 is a rear view of the back cover 120. The structure and usage method (procedure for changing to a car) of the infant seat apparatus 100 will be described in detail with reference to these drawings. In addition, although there are some components in which there is a deviation between the perspective view of FIG. 3 and other views, the perspective view is merely a diagram showing the structure of the infant seat apparatus 100 for reference.

[Construction]
As shown in these drawings, the infant seat apparatus 100 holds a seat main body 110 that forms a seat portion therein, a back cover 120 that is configured separately from the seat main body 110, and an infant's head. And a headrest 130 that protects and protects, a seat belt 140 that restrains the body of the infant sitting on the seat, a handle bar 150 that is held by the infant sitting on the seat, and the like.

  The infant seat device 100 is disclosed in Japanese Patent Application Laid-Open Nos. 2011-88537, 2011-88536, 2011-88535, and 2010-269780, which are filed by the present applicant. An infant seat apparatus disclosed in the embodiments of JP 2010-26979A, JP 2010-269778 A, and the like, and a back cover 120 that serves as a seat belt 140 holding portion, on which an infant leans against his / her back, are provided. The basic structure is the same except that it is removable.

  Guides 112 are provided outside the left and right side walls of the seat body 110. When the seat main body 110 is integrally molded, the guide 112 is also integrally molded as a part of the seat main body 110. When the bicycle 400 is fixed with the two foot stands sandwiching the rear wheel shaft from the left and right and the infant seat device 100 is attached to the bicycle 400 from above, and when the bicycle 400 is fixed and the infant seat device 100 is detached from the bicycle 400 upward In addition, the cross section of the guide 112 is substantially U-shaped (corresponding to the cross-sectional shape of the handle upright portion 434) so that the guide 112 of the infant seat apparatus 100 slides along the handle upright portion 434. Further, the interval between the handle upright portions 434 and the width of the infant seat device 100 are matched. The infant seat apparatus 100 is attached to the bicycle 400 with fastening members such as bolts and nuts at three places, left and right attachment holes 171 provided in the guide 112 and attachment holes 172 provided in the bottom surface. When the infant seat apparatus 100 is changed to the front car, it is not necessary to remove the infant seat apparatus 100 from the bicycle 400.

  The seat body 110 has a seat portion, and a rear wall surface rises at the rear portion of the seat portion. Side guard walls may be formed on both the left and right sides of the seat, and the rear ends of these side guard walls may be integrally formed with the rear wall surface. Note that the infant seat device 100 is preferably provided on the left and right of the handle cover 180 (shown only in FIG. 3) so that the handle of the bicycle 400 is not directly touched by the infant. The handle cover 180 may be integrally formed with the side guard wall or may be separately molded and attached. If it does in this way, it can avoid that an infant touches the handle | steering-wheel of the bicycle 400 which became high temperature by the solar radiation in summer, and feels heat.

  An outline of features of the infant seat apparatus 100 according to the present embodiment will be described. In the conventional infant seat apparatus, the back of the infant sitting on the seat is in direct contact with the rear wall surface of the seat body. However, in the infant seat apparatus 100 according to the present embodiment, the back cover 120 is on the infant's back. Abut. Since the headrest 130 and the seat belt 140 are attached to the back cover 120, unnecessary parts can be removed at a time by removing the back cover 120 from the seat body 110. Further, the back cover 120 has a configuration that can be easily detached from the seat body 110. Details of these features will be described later.

  Furthermore, another feature of the infant seat apparatus 100 will be described. As described above, unlike the conventional infant seat apparatus, the infant seat apparatus 100 is provided with the detachable back cover 120 separately from the seat body 110. For example, when the rear wall surface of the infant seat apparatus 100 is raised substantially vertically (not diagonally), the back cover 120 is attached to be inclined with respect to the rear wall surface and used as the infant seat apparatus, and the back cover 120 is used. It is possible to improve the usability of both sides by removing the and using it as a front basket of a substantially rectangular parallelepiped.

Step As shown in FIG. 6, a leg resting member (step 113) is provided on the front side of the seat portion of the seat main body 110. In step 113, the rear end side is pivotally supported by the seat body via the pivot, and swings downward around the pivot from the first posture (the posture in which step 113 is closed in the direction of arrow B) and the first posture. The posture can be freely changed to the second posture (the posture in which step 113 is opened in the direction indicated by arrow A). The position of the holding side that locks step 113 in the first position so that the downward swing from the first position of step 113 is impossible, and the open side that allows the downward swing of step 113 from the first position. A knob 118 that is freely changeable in position is provided.

  That is, step 113 constitutes the bottom of the car when it is opened in the direction of arrow A to form an opening through which the infant passes its legs or closed in the direction of arrow B and the infant seat apparatus 100 is used as a front car. Or In this way, step 113 can be used as a footrest for an infant sitting on the seat by changing the mounting posture in the direction of arrow A (not to be completely closed in the direction of arrow B). In addition, by changing the mounting posture in the direction indicated by the arrow B (completely closed in the direction indicated by the arrow B), the baggage 400 can be used as a storage unit for luggage.

  As shown in FIGS. 6 to 8, step 113 holds the state closed in the arrow B direction by rotating the knob 118 of the stay 117 provided on the bottom surface of the seat body to the holding side. The state opened in the direction of arrow A is maintained by rotating the knob 118 to the open side. That is, when an infant is placed on the infant seat apparatus 100, the knob 118 is rotated to the open side to maintain the state where the step 113 is opened in the direction of arrow A, and the infant seat apparatus 100 is used as a front car. When used, the knob 118 is rotated to the holding side, and the state in which the step 113 is closed in the arrow B direction is held.

Seat belt The seat belt 140 is a five-point seat belt. The two abdominal belts 142 for restraining the infant's abdomen from the left and right and the two shoulder belts 143 for restraining both shoulders of the infant are attached to the back cover 120, and the two abdominal belts 142 and 2 The bottom belt 144 to which the buckle 141 for fixing the shoulder belt 143 is attached is attached to the bottom surface of the seat body 110 through the crotch of the infant. The seat belt is not limited to the five-point type, and may be a three-point type of either the abdominal belt 142 or the shoulder belt 143 and the bottom belt 144, or may be only the abdominal belt 142. I do not care.

Back Cover As shown in FIG. 4, the back cover 120 includes a substantially flat plate-shaped back plate 121, and includes two engagement stays 125 at the lower end of the back plate 121. These engagement stays 125 respectively engage with engagement holes 115 provided at two locations near the boundary between the bottom surface and the rear back surface of the seat body 110. Two back cover attachment holes 116 are provided on the rear rear surface of the seat body 110, and two plate nuts 124 are provided in the back cover 120 at positions corresponding to the back cover attachment holes 116. After the engagement stay 125 is engaged with the engagement hole 115, a knob bolt (not shown) passed through the back cover attachment hole 116 from the outside of the seat body 110 and the plate nut 124 are fastened, whereby the seat body. A back cover 120 is fixed to 110.

  With this structure, a knob bolt (not shown) is loosened from the saddle side of the bicycle 400, the knob bolt is removed from the plate nut 124, the back cover 120 is moved upward, and the engagement stay 125 is removed from the engagement hole 115. Thus, the back cover 120 can be detached from the seat body 110. In this case, since the seat belt is attached to the back cover 120 as described below, the seat belt (specifically, the two abdominal belts 142 and 2) are removed by removing the back cover 120 from the seat body 110. The shoulder belt 143) can be removed from the seat body 110.

  11 and 12 show a state in which the back cover 120 is attached to the seat body 110. FIG. As described above, the back cover 120 has the rib 127 in contact with the rear wall surface of the seat body 110 in addition to the engagement stay 125 being engaged with the engagement hole 115 of the seat body 110. Further, as will be described later, the holding hole 133 of the headrest support portion 132 is fitted into a protrusion 126 provided on the back surface of the back cover 120, and the headrest support portion 132 is in contact with the back cover 120. However, since the headrest 130 is not illustrated in FIG. 12, the headrest support portion 132 is not displayed and the protruding portion 126 is represented.

  The attachment of the seat belt to the back cover 120 will be described. The fixation of the abdominal belt 142 will be described with reference to FIG. 5, but the other shoulder belt 143 and bottom belt 144 are also attached in the same manner. As shown in FIG. 5, the back cover 120 is provided with an abdominal belt attachment hole 122, a loop portion is formed at the end of the abdominal belt 142, and the belt stopper 162 is passed through the loop portion through the belt stopper 162. The abdomen belt 142 is attached to the back cover 120 by being inserted into the abdomen belt attachment hole 122. The belt stopper 162 has flexibility such that the two claw portions are close to each other when inserted into the abdomen belt attaching hole 122 and return to the original shape when inserted. The abdomen belt 142 can be removed from the back cover 120 by picking it with fingers so that the nail parts are close to each other and pulling out the belt stopper 162 from the abdomen belt attachment hole 122.

  Similarly, the shoulder belt 143 is attached by inserting a belt stopper 163 into a belt attachment hole 123 provided in the back cover 120. Since the abdomen belt 142 and the shoulder belt 143 are attached to the back cover 120 in this way, as described above, the abdomen belt 142 and the shoulder belt 143 are removed from the seat main body 110, whereby the abdomen belt 142 and the shoulder belt 143 are removed from the infant seat device. 100 can be removed.

  The bottom belt 144 is attached by inserting a belt stopper (not shown) into a bottom belt attachment hole 119 provided on the bottom surface of the seat body 110. The buckle 141 attached to the bottom belt 144 and the bottom belt 144 is removed from the seat body 110 by picking it with fingers so that the claw portions of the belt stopper (not shown) are close to each other and pulling out the belt stopper from the bottom belt attachment hole 119. be able to.

Handlebar A handlebar 150 is provided for an infant sitting on the seat to grip the seat body 110 so as to straddle the seat main body 110 at a position above the seat and facing the back cover 120. The handlebar 150 is wrapped with a soft cushion material so that an infant can hold it by hand. A handlebar stay 151 is provided at the left and right ends of the handlebar 150, and the handlebar stay 151 is attached to the seat body 110. From the outside of the seat main body 110, a knob bolt 153 passed through the handle mounting hole 154 of the handle bar stay 151 and the mounting hole 111 of the seat main body 110, and a nut 152 held by the stay mounting portion 114 are fastened. Note that the handlebar stay 151 is held in an upright state by a guide (not shown) or the like provided on the seat body 110. In order to maintain the standing state of the handlebar stay 151, the stay mounting portion 114 is provided on the outer surface of the seat body 110, and a groove for fitting to the stay mounting portion 114 is provided on the inner side of the handlebar stay 151. It doesn't matter.

  Since it is such a structure, the knob bolt 153 is loosened from both the left and right sides of the bicycle 400 of the infant seat apparatus 100, the knob bolt is removed from the nut held by the stay mounting portion 114, and the handle bar 150 is moved upward, The handle bar 150 can be detached from the seat body 110. In addition, it is preferable that the height position and / or the angle of the handle bar 150 can be changed depending on the body shape of the infant sitting on the seat portion by providing a position adjusting portion.

-Headrest A headrest 130 is provided above the back surface of the seat portion and is held by the back cover 120. The headrest 130 is covered with a cushion material 131 at a position where the head of the infant abuts. In the headrest 130, the holding hole 133 of the headrest support portion 132 is fitted into the protrusion 126 provided on the back surface of the back cover 120, and the back cover 120 is attached to the seat body 110 in this state, thereby It is fixed to the main body 110. The position of the headrest 130 is preferably provided with a height adjustment unit and can be changed according to the body shape of the infant sitting on the seat. Since the headrest 130 is thus attached to the back cover 120, the headrest is removed together with the seat belt (specifically, the two abdominal belts 142 and the two shoulder belts 143) by detaching the back cover 120 from the seat body 110. 130 can also be removed from the seat body 110.

In addition, since the structure of the infant seat apparatus 100 other than this is the same as embodiment disclosed by six above-mentioned gazettes, detailed description here is not repeated.
[Usage: Change from infant seat to car]
A procedure for changing the infant seat device 100 having the above-described structure from a state where the infant seat device 100 is used as an infant seat (FIG. 1) to a state where it is used as a front car (FIG. 2) will be described. Note that the order of the procedures shown below can be changed.

First procedure: Step 113 opened in the direction of arrow A is closed in the direction of arrow B, the knob 118 of the stay 117 is rotated to the holding side, and step 113 is closed in the direction of arrow B. Hold. Thereby, the bottom face of the front car in the front direction of the bicycle 400 can be formed.
Second Procedure The knob bolt 153 is loosened from both the left and right sides of the bicycle 400 of the infant seat apparatus 100, the knob bolt is removed from the nut held by the stay mounting portion 114, and the handle bar 150 is moved upward. As a result, the handle bar 150 can be detached from the seat body 110, and the handle bar 150 does not get in the way of loading / unloading luggage in the front car.

Third Procedure Loosen the knob bolt attaching the back cover 120 from the saddle side of the bicycle 400, remove the knob bolt from the plate nut 124, move the back cover 120 upward, and move the engagement stay 125 from the engagement hole 115. Unplug. Thereby, the back cover 120 can be detached from the seat body 110. In this case, since the headrest 130 and the seat belt 140 are attached to the back cover 120, the headrest 130 and the seat belt 140 can be detached from the seat body 110 by detaching the back cover 120 from the seat body 110. Thereby, unnecessary parts can be removed at a time as a front basket.

-4th procedure By the procedure so far, the infant seat apparatus 100 functions as a substantially front cage, but the bottom belt 144 remains attached to the bottom surface of the seat body 110. Accordingly, the belt stopper is pulled out of the bottom belt attaching hole 119 by picking it with fingers so that the claw portions of the belt stopper holding the bottom belt 144 are close to each other. Thereby, the bottom belt 144 and the buckle 141 attached to the bottom belt 144 can be detached from the seat body 110.

Thus, the infant seat apparatus 100 can be easily changed from the state shown in FIG. 1 to the state shown in FIG. In addition, the user who feels that it is not necessary to remove the bottom belt 144 and the buckle 141 from the seat body 110 does not need to remove them, and in this case, the infant seat apparatus can be changed to the front car in three steps.
As described above, according to the infant seat apparatus 100 according to the present embodiment, without removing the infant seat apparatus 100 from the bicycle 400, (1) close the step 113 and (2) loosen the two knob bolts. By removing the handle bar 150 and (3) removing the back cover 120 by loosening the two knob bolts (and additionally removing the bottom belt 144), the infant seat apparatus 100 can be easily changed to the front car. it can. In the state of the front car, unnecessary parts (required as a seating device) (rear cover 120, headrest 130, seat belt 140, handlebar 150) are removed as a front car, which is suitable for loading and unloading luggage. Yes. Further, among these unnecessary parts, except for the handle bar 150, the back cover 120 can be removed from the seat body 110 by a procedure of simply removing the back cover 120 from the seat body 110. As a result, according to the infant seat apparatus 100 according to the present embodiment, when it is not used as an infant seat, it can be easily changed to a convenient front car.

In addition, if the rear wall surface of the infant seat apparatus 100 is raised substantially vertically (not diagonally) and the back cover 120 is attached to be inclined with respect to the rear wall surface, the volume of the front car increases. preferable.
<Second Embodiment>
Below, with reference to FIG. 15 and FIG. 16, the infant seat apparatus 200 which concerns on the 2nd Embodiment of this invention is demonstrated. This infant seat apparatus 200 is different from the infant seat apparatus 100 according to the first embodiment in the method of attaching the bottom belt. Since other than that is the same as 1st Embodiment, detailed description here is not repeated.

  As shown in FIGS. 15 and 16, the infant seat apparatus 200 according to the present embodiment includes a seat cover 201 and a bottom belt attachment that holds a bottom belt 244 on a substantially flat back plate 221 of the back cover 220. The point that the hole 204 is provided is a point greatly different from the above-described embodiment. Note that there is one engagement hole 215 provided in the vicinity of the boundary between the bottom surface and the rear back surface of the seat main body 210, and there is also one engagement stay 225 provided at the lower end of the back plate 221. The engagement stay 225 engages with the engagement hole 215. These numbers are not limited, and may be one (one set) in the first embodiment, or two (two sets) in the present embodiment. It does not matter if there are more (three sets).

The seat surface cover 201 is laid on the bottom surface of the seat main body 210 and comes into contact with the buttocks of the infant. The seat surface cover 201 includes left and right leg holders 202 with which the back sides of the infant's thighs abut, and a bottom belt through hole 205 through which the bottom belt 244 passes is provided between the leg holders 202. The seat surface cover 201 is made of a cushioning material, for example.
The stay 217 on the bottom surface of the seat body 210 is provided with a bottom belt through hole 218 instead of the bottom belt attaching hole 119. In the bottom belt 244, one end portion where the loop portion is formed is passed through the bottom belt through hole 218 and the bottom belt through hole 205, and is passed between the seat surface cover 201 and the bottom surface of the seat body 210, The belt stopper 203 is attached by inserting the belt stopper 203 into the bottom belt attachment hole 204 provided on the back surface of the back cover 220. The loop portion may be formed at one end of the bottom belt 244 until the loop portion is passed through the bottom belt attachment hole 204 of the back cover 220. In FIG. 16, the bottom belt 244 does not pass through the bottom belt through hole 205.

  A buckle 241 is attached to the other end of the bottom belt 244. One engagement hole is provided in the buckle 241 in the left-right direction. The right abdomen belt 242 and the right shoulder belt 243 are attached to the buckle insertion member (tang) 245, and the buckle claw 246 is inserted into the right engagement hole of the buckle 241. Similarly, the infant is restrained by five seat belts on the left side. Although this structure is not described in the first embodiment, the first embodiment and the second embodiment (and the third embodiment) are the same.

  In the infant seat apparatus 200 having such a structure, a headrest 130, two abdominal belts 242, two shoulder belts 243, and one bottom belt 244 are attached to the back cover 220. After removing the buckle 241 from the bottom belt 244 and releasing the back cover 220 upward from the seat body 210 so that the engagement state of the engagement stay 225 engaged with the engagement hole 215 is released, the seat body 210 Then, the back cover 220 is removed upward. At this time, the end of the bottom belt 244 from which the buckle 241 is removed passes through the bottom belt through hole 218 and the bottom belt through hole 205. In this way, the bottom belt 244 can be detached from the seat body 210 together with the other four seat belts (two abdominal belts 242 and two shoulder belts 243).

As described above, according to the infant seat apparatus 200 according to the present embodiment, the five seat belts can be detached from the seat body 210 by detaching the back cover 220 from the seat body 210. The procedure of 4 becomes unnecessary.
<Third Embodiment>
Below, with reference to FIG. 17 and FIG. 18, the infant seat apparatus 300 which concerns on the 3rd Embodiment of this invention is demonstrated. This infant seat apparatus 300 is different from the infant seat apparatus 100 according to the first embodiment and the infant seat apparatus 200 according to the second embodiment in the method of attaching the bottom belt. Since other than that is the same as 1st Embodiment or 2nd Embodiment, detailed description here is not repeated.

  As shown in FIGS. 17 and 18, the infant seat apparatus 300 according to the present embodiment is such that the seat cover 201 and the back cover 220 of the infant seat apparatus 200 according to the second embodiment are integrated. An L-shaped cover 320 similar to a seat chair shape is provided. The cover 320 includes a back plate 321 with which the back of the infant sitting on the seat body 310 abuts and a seat surface cover 322 with which the infant's buttocks abuts. The seat cover 201 is placed on the seat cover portion 322.

  The embodiment described above is that the engagement stay 325 is provided at the distal end portion of the seat surface cover portion 322, and the engagement hole 315 for engaging the engagement stay 325 is provided in the stay 317 on the bottom surface of the seat body 310. This is a very different point. Note that the number of the engagement holes 315 provided in the stay 317 is one, and the number of the engagement stays 325 provided in the front end portion of the seating surface of the cover 320 is also one. The number of these is not limited.

  A bottom belt attaching hole 304 for attaching the bottom belt 344 is provided at a substantially central portion of the bottom surface of the cover 320. The bottom belt 344 is attached by inserting a belt stopper 303 into the bottom belt attachment hole 304. A buckle 241 is attached to the opposite end of the bottom belt attachment hole 304 of the bottom belt 344. The buckle structure is the same as in the second embodiment.

  In the infant seat apparatus 300 having such a structure, a headrest 130, two abdominal belts 242, two shoulder belts 243, and one bottom belt 344 are attached to the cover 320. After removing the buckle 241 from the bottom belt 344 and causing the cover 320 to be detached obliquely upward from the seat body 310 so that the engagement state of the engagement stay 325 engaged with the engagement hole 315 is released, the seat body 310 Then, the cover 320 is removed upward. At this time, the end of the bottom belt 344 from which the buckle 241 has been removed passes through the bottom belt through hole 205. In this manner, the bottom belt 344 can be detached from the seat body 310 together with the other four seat belts (two abdominal belts 242 and two shoulder belts 243).

As described above, according to the infant seat apparatus 300 according to the present embodiment, the five seat belts can be detached from the seat body 310 by detaching the cover 320 from the seat body 310. This procedure becomes unnecessary.
As mentioned above, it should be thought that embodiment disclosed this time is an illustration and restrictive at no points. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

100 Infant seat device (first embodiment)
110 Seat body 113 Step 120 Back cover 130 Headrest 140 Seat belt 150 Handlebar 200 Infant seat device (second embodiment)
300 Infant seat device (third embodiment)
400 bicycle

Claims (5)

An infant seat device attached to a handle of a bicycle, the seat body having a seat portion on which the infant sits;
A cover that is detachably provided on the seat body, and a cover on which the back of the infant sitting on the seat abuts,
A seat belt attached to the cover and restraining the infant sitting on the seat,
When the cover is detached from the seat body, the seat belt is detached from the seat body together with the cover ,
The seat belt is
A side belt that restrains at least one of the shoulder and abdomen of the infant sitting on the seat from both the left and right sides;
A bottom belt that rises from the crotch of the infant and is connected to the side belt via a buckle;
When the cover is detached from the seat body, the side belt and the bottom belt are detached from the seat body together with the cover . The cover has a substantially planar shape, and the back of the infant sitting on the seat is in contact with the planar shape,
The infant seat device for a bicycle according to claim 1 , wherein the side belt and the bottom belt are attached to the cover. The cover is substantially L-shaped, and includes a back cover portion on which a back of an infant sitting on the seat portion contacts and a seat surface cover portion on which the buttocks of the infant contacts.
The infant seat device for a bicycle according to claim 1 , wherein the side belt is attached to the back cover, and the bottom belt is attached to the seat cover. A headrest attached to the cover and protecting the head of the infant sitting on the seat,
The seat belt and the headrest are detached from the seat body together with the cover when the cover is detached from the seat body.
The infant seat device for bicycles according to any one of 3 above. A leg resting member disposed on the front side of the seat;
The leg resting member is pivotally supported at the rear end side by a pivot on the seat, and the posture can be freely changed between a first posture and a second posture swinging downward from the first posture around the pivot. And a holding position for holding the leg rest member in the first position so that the leg rest member cannot be swung downward from the first position, and a downward swing of the leg rest member from the first position is allowed. The infant seat device for a bicycle according to any one of claims 1 to 4 , further comprising a lock member that is freely changeable to an open position.

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