JP2010260458A - Riding vehicle for child - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a riding vehicle for a child capable of making an infant ride thereon in a state that the infant is laid in a baby carriage state while being switched to a use state as a peg stroke vehicle such as a child tricycle and to a use state as a handcart such as a baby carriage. <P>SOLUTION: A front wheel 8 is brought into a convertible state if necessary, a handle bar 6 and a pushing rod 10 are made detachable relative to a vehicle body 3, and a seat member 2 can be selectively fixed at a position suitable for the baby carriage at a relatively front side relative to the vehicle body 3 and at a position suitable for the tricycle at a relatively rear side. In the baby carriage state, the seat member 2 is fixed to a position at a relatively front side relative to the vehicle body 3, and a back rest 4 is inclined at an angle of approximately 170° relative to a seat 5. In the tricycle state, the handle bar 6 is mounted, the seat member 2 is fixed to a position at a relatively rear side relative to the vehicle body 3, the back rest 4 and the pushing rod 10 are removed, and a pedal 7 is mounted to a position eccentric to an axle of the front wheel 8. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a children's passenger vehicle that is used as a wheelbarrow like a baby carriage by carrying an infant, and more particularly, to a child passenger vehicle that can be changed into a leg wheel like a tricycle, for example. It is.

  Of interest to the present invention is a children's tricycle configured such that a push rod is detachably attached (see, for example, Patent Document 1). According to such a tricycle, a guardian or the like in a state where the child sits on the seat of the tricycle, in addition to the original usage mode of the tricycle such that the child riding on the pedal pedals with his / her foot and runs the tricycle. It is also possible to use the vehicle as a push vehicle by operating a push rod to run a tricycle.

  Conventionally, in some patent documents, the use mode as a push cart like the latter is referred to as “use as a stroller” (for example, see Patent Documents 2 and 3). However, the configuration in which the push rod is simply attached to the tricycle is merely a “just in time” baby carriage and is far from the form of a commercially available baby carriage. If you are a parent wishing for a healthy growth of your child, you might not even think about attaching a push rod to a tricycle and using it as a baby carriage. In fact, I rarely see the sight of using a tricycle as a baby carriage.

  In addition, the baby carriage is not only for carrying an infant while sitting (type B), but also for placing an infant with the backrest tilted up to 170 degrees and lying almost on its back (type A) is there. In particular, the latter type A baby carriage is suitable for carrying an infant from the age of 0 months to about 7 months, which is considered to be the most sound in brain science. Such an A-type baby carriage cannot be substituted by a tricycle.

Utility Model Registration No. 3141909 JP 2005-59846 A JP 2005-193740 A

  Accordingly, an object of the present invention is to allow a baby to be laid in a use state as a baby carriage while enabling switching between a use state as a rowing wheel such as a tricycle and a use state as a baby carriage. It is to provide a passenger car for children.

  The present invention includes a vehicle body having a front wheel and a rear wheel, a rear leg member for rotatably holding the rear wheel, and a front leg member for rotatably holding the front wheel, a push rod attached to the vehicle body, and a seat portion. And a seat member that has a backrest and is attached to the vehicle body.

  In such a child passenger vehicle, in order to solve the technical problems described above, the seat member is located at a position suitable for a stroller relatively forward with respect to the vehicle body and a position suitable for a rear row carriage. It is characterized in that it can be selectively fixed.

  In the child passenger vehicle according to the present invention, the front leg member may be held in the vehicle main body so that the front wheels can be turned as necessary in order to achieve a form suitable for use as a towing vehicle. preferable. The child passenger vehicle is further operated to turn the front wheels. The handle and the front wheels, which are held by the vehicle body in a state of being connected to the front leg members, are driven to rotate. It is preferable to provide a pedal for doing this.

  In the above-described preferred embodiment, the handle and the push bar are preferably detachable from the vehicle body.

  Moreover, it is preferable that the pedal mentioned above is provided so that attachment or detachment is possible. In this case, it is more preferable that the pedal can be selectively attached to either the position eccentric to the axle of the front wheel or the position on the axle.

  Moreover, it is preferable that the backrest part is removable from the seat part.

  Moreover, it is preferable that the inclination angle of the backrest portion with respect to the seat portion can be changed.

  According to the child passenger vehicle according to the present invention, since it can be used as a wheelbarrow like a tricycle in addition to being used as a wheelbarrow like a baby carriage, Can be used for a long time. Therefore, it is economical, and not only will attachment be born by using it for a long time, but it will also give rise to a feeling of having to take care of things, which is also preferable for education.

  Further, according to the child passenger vehicle of the present invention, the seat member can be selectively fixed at a relatively front position and a relatively rear position with respect to the vehicle body. By fixing at a relatively front position with respect to the vehicle body, a state suitable for use as a baby carriage is realized, while on the other hand, by fixing the seat member at a relatively rear position with respect to the vehicle body, A state suitable for use as a rowing wheel is realized.

  In the above-described baby carriage state, when the back portion of the seat member is tilted to, for example, 170 degrees with respect to the seat portion, the infant can be placed in a state of being almost lying on its back, and it is the most sound in brain science. It can be made a form suitable for carrying infants from about 0 months to about 7 months old. In this state, as described above, since the seat member is fixed at a relatively forward position with respect to the vehicle body, even if the weight of the infant is added to the vehicle body, the position of the center of gravity as a whole is the front wheel and the rear wheel. It is possible to give the baby carriage a safe and good running performance.

  On the other hand, in the state of the rowing wheel, as described above, the seat member is fixed at a relatively rear position with respect to the vehicle body, so that it is possible to give the child a posture suitable for rowing on the front wheels. it can.

  Note that in the child passenger vehicle according to the present invention, switching between the use state as the baby carriage and the use state as the towing wheel is not frequently performed. That is, it is used as a baby carriage from the birth of a child to about 2 years old, and thereafter, when the baby carriage is no longer needed as the child grows up, the use as a pram is started. In a normal case, it is rarely returned to the baby carriage state again from the rowing wheel state. As described above, the child passenger vehicle is basically switched only once from the baby carriage state to the rowing wheel state. Therefore, a complicated structure such as a link mechanism for easily performing such state switching is evaluated as being of excessive quality for the child passenger vehicle, and costs and weight are taken into consideration. When you do, you should consider it absolutely unnecessary.

  Therefore, the child passenger vehicle according to the present invention does not require a complicated mechanism for switching the state. For example, a simple mounting structure in which the seat member can be attached and detached by bolts or the like is employed, and the seat member is fixedly positioned. You may adjust it. Therefore, the structure of the child passenger vehicle can be simplified, and the cost reduction and weight reduction of the child passenger vehicle can be expected.

  In the child passenger vehicle according to the present invention, the front leg member is held in the vehicle main body so that the front wheels can be turned as necessary, and is operated to turn the front wheels. If the vehicle further includes a handle that is held by the vehicle body in a state of being connected to the member and a pedal for rotationally driving the front wheels by a rowing, a form suitable for use as a rowing wheel can be provided. it can.

  Furthermore, if the handle and the push bar are detachable from the vehicle body, the handle is removed in the state of use as a baby carriage, but the push bar is attached. Although attached, the push bar can be removed, giving a more suitable form to each of the pram and the pram. Moreover, in the use state as a towing wheel, it can also be set as the state which has attached the push rod.

  Moreover, when the pedal is provided so as to be detachable, it can be attached in a state of use as a rowing wheel that requires a pedal, and can be removed in a state of use as a baby carriage of the main body. Therefore, it is possible to reduce the weight in the stroller state and to give a favorable impression in terms of design.

  When the pedal described above can be selectively attached to either the position eccentric with respect to the axle of the front wheel or the position on the axle, in the state of use as a rowing wheel, it is normally attached to the axle of the front wheel. On the other hand, a pedal is attached at an eccentric position and is used for rowing. However, when used as a handcart, the pedal can be attached at a position on the axle and used as a footrest.

  When the backrest portion is removable from the seat portion, it is possible to remove the feeling of pressure due to the backrest portion for a child who enjoys rowing by removing the backrest portion in the state of use as a rowing wheel. In addition, the weight of the rowing wheel can be reduced.

  If the inclination angle of the backrest with respect to the seat can be changed, it can be used as a “B-type” stroller to put the baby in a seated state, and the backrest can be inclined to 170 degrees to It can be used as an “A-type” baby carriage that can be placed in a state of lying on its back.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a child passenger vehicle according to an embodiment of the present invention, and each of (1) to (4) shows a changing state of a child passenger vehicle. It is a side view of the passenger vehicle for children in the state shown in FIG. It is a side view of the child passenger vehicle in the state shown in FIG. It is a side view of the passenger vehicle for children in the state shown in FIG. It is a side view of the passenger vehicle for children in the state shown in FIG. It is a perspective view which shows the passenger vehicle for children shown in FIG. 1 in the state which removed the seat member. It is a side view which shows the attachment structure of the seat member in the state shown in FIG. 1 (1) or (2) in a partial cross section. FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 7. It is a side view which shows the attachment structure of the handle in the state shown in FIG. 1 (3) or (4) in a partial cross section. FIG. 10 is a cross-sectional view taken along line XX in FIG. 9. It is a side view which shows the attachment structure of the seat member in the state shown in FIG. 1 (3) or (4) in a partial cross section. It is sectional drawing which shows the attachment structure of the pedal with respect to a front wheel.

  As shown in FIGS. 1 (1) to (4), the child passenger vehicle 1 according to the embodiment of the present invention can be changed in form.

  First, the child passenger vehicle 1 shown in FIG. 1 (1) is in a use state as a stroller (hereinafter simply referred to as a “stroller state”). The seat member 2 is in a relatively forward position with respect to the vehicle body 3. Moreover, the backrest part 4 with which the seat member 2 is provided is inclined at an angle of about 170 degrees with respect to the seat part 5, and the infant can be placed in a state of being almost laid on his / her back.

  The child passenger vehicle 1 shown in FIG. 1 (2) is also in the stroller state, but is different from that shown in FIG. 1 (1) in that the backrest portion 4 is relatively raised.

  The child passenger vehicle 1 shown in FIG. 1 (3) is in a state shown in FIG. 1 (4) described later, that is, a use state as a child tricycle (hereinafter simply referred to as “tricycle state”) and a baby carriage state. In an intermediate state (hereinafter referred to as “intermediate state”). In this intermediate state, the handle 6 is attached, and the seat member 2 is attached at a relatively rear position with respect to the vehicle body 3. Moreover, the pedal 7 is attached to the position on the axle 9 (refer FIG. 12) of the front wheel 8, and is used as a footrest.

  The child passenger vehicle 1 shown in FIG. 1 (4) is in a tricycle state. In the tricycle state, the backrest 4 is removed from the seat member 2 as compared with the intermediate state shown in FIG. Also, the push rod 10 is removed. Further, the pedal 7 is attached at a position eccentric with respect to the axle 9 of the front wheel 8 and is in a state where it can be used for leg riding. The front wheel 8 can be turned by operating the handle 6.

  Details of the child passenger vehicle 1 that enables the state change as described above will be described below.

  First, as well shown in FIG. 6, the vehicle body 3 includes a pair of rear leg members 12 that rotatably hold a pair of rear wheels 11 and a front leg member that rotatably holds the front wheels 8. 13. In this embodiment, the pair of front wheels 8 are provided in a state of being close to each other with the front leg member 13 interposed therebetween. However, since these rotate substantially as one body, they are regarded as one wheel. Therefore, this child passenger vehicle 1 can be regarded as a substantially tricycle.

  The upper ends of the pair of rear leg members 12 are fixed to the end portions of the lateral frame 14 extending in the left-right direction by welding or the like. A vertical frame 15 that extends substantially in the front-rear direction is fixed to the central portion of the horizontal frame 14 by welding or the like. A bearing sleeve 16 is fixed to the front end of the vertical frame 15 by welding or the like. The bearing sleeve 16 receives the upper end portion of the front leg member 13 and holds the front leg member 13 so as to be rotatable about the axis.

  Push rod receivers 17 are attached to the left and right ends of the horizontal frame 14. The push rod 10 described above has an inverted U-shape, and each lower end portion thereof is inserted into the push rod receiver 17 and fixed by a bolt or the like (not shown). Therefore, by loosening this bolt, the push rod 10 can be pulled out from the push rod receiver 17 and removed.

  As described above, the seat member 2 can be selectively fixed with respect to the vehicle body 3 at a position suitable for a baby carriage relatively forward and a position suitable for a tricycle relatively rearward. A configuration that enables this will be described below.

  As shown in FIGS. 7 and 11, a column 18 is attached to the lower surface of the seat portion 5 provided in the seat member 2. As shown in FIGS. 7 and 8, the strut 18 is received in the bearing sleeve 16 described above in the baby carriage state, while in the intermediate state or the tricycle state, the strut 18 is received in the strut receiver 19 as shown in FIG. Accepted. As shown well in FIG. 6, the column support 19 is provided so as to protrude upward at the relatively rear end portion of the vertical frame 15 described above.

  First, the fixing structure of the seat member 2 in the baby carriage state will be described.

  Referring mainly to FIG. 7, as described above, the front leg member 13 received in the bearing sleeve 16 is prevented from falling downward from the bearing sleeve 16 by the flange 20 provided therein. A convex portion 21 is formed on the upper end portion of the front leg member 13, while a convex portion 22 is formed on the lower end portion of the support column 18, and these projecting portions 21 and 22 mesh with each other. Are integrated and rotation between them is prohibited.

  A connecting sleeve 23 is disposed between the inner peripheral surface of the bearing sleeve 16 and the outer peripheral surfaces of the support column 18 and the front leg member 13. The connecting sleeve 23 functions so as to keep the integrated state of the support column 18 and the front leg member 13 stable, and acts to inhibit the upward displacement of the front leg member 13 by contacting the flange 20.

  In order to inhibit rotation of the support column 18 and the front leg member 13 around the axis line in the bearing sleeve 16, a bolt 24 is inserted so as to penetrate between the opposing wall portions of the bearing sleeve 16. That is, in order to receive the bolt 24, the bearing sleeve 16 is provided with holes 25 and 26, the connecting sleeve is provided with holes 27 and 28, and the column 18 is provided with a hole 29. A female screw that is screwed into a male screw formed on the bolt 24 is necessarily formed in the holes 26 and 28 (see FIGS. 9 and 10), and is preferably further formed in the hole 27 as well.

  The hole 25 is a long hole extending in the circumferential direction of the bearing sleeve 16 as shown in FIG. 8, and the reason will be described later. Further, although not shown, a slight gap is formed between the head of the bolt 24 and the outer peripheral surface of the bearing sleeve 16.

  When the state shown in FIGS. 7 and 8 is established, the seat member 2 is fixed at a relatively front position of the vehicle body 3 as shown in FIG. 2 or FIG. At this time, the strut 18 is fixed to the bearing sleeve 16 by the penetration of the bolt 24, and the front leg member 13 is also fixed. Therefore, turning of the front wheel 8 is prohibited.

  In the seat member 2, the backrest portion 4 can be removed from the seat portion 5, and the inclination angle with respect to the seat portion 5 can be changed. More specifically, as shown in FIGS. 2 to 4, the backrest 4 is connected to the seat 5 via a shaft 30 extending in the left-right direction. Therefore, the backrest part 4 can be rotated about the shaft 30, and thereby the inclination angle with respect to the seat part 5 can be changed. Further, the shaft 30 can be pulled out as necessary, so that the backrest portion 4 can be detached from the seat portion 5.

  The state in which the backrest part 4 shown in FIG. 2 is laid down is maintained by the back surface of the backrest part 4 being supported by the receiving bar 31 passed between both legs of the push bar 10. The push bar 31 is well illustrated in FIG. As shown by a two-dot chain line in FIG. 6, when the support bar 31 is attached at a relatively upper position, the back of the backrest 4 in the posture shown in FIG. 3 or the posture shown in FIG. 4 is supported. Thus, by changing the position of the receiving bar 31, the inclination angle of the backrest 4 can be changed.

  In addition, the receiving bar 31 is in the form of a long bolt, for example, and a nut is screwed into the end while being inserted into the through-hole 32 or 33 so that a desired position of the push bar 10 is obtained. Fixed to the height position.

  Next, the fixing structure of the seat member 2 and the mounting structure of the handle 6 in the intermediate state or the tricycle state will be described with reference to FIGS.

  In order to obtain the intermediate state or the tricycle state, the bolt 24 described with reference to FIGS. 7 and 8 is extracted, and the seat member 2 is extracted from the bearing sleeve 16 and the connecting sleeve 23 together with the support 18. After this extraction, the handle 6 is attached.

  The handle 6 includes a grip bar 34 that extends in the left-right direction and a column 35 that extends downward from the center of the grip bar 34. To attach the handle 6, a post 35 is inserted into the connecting sleeve 23 in the bearing sleeve 16 as shown in FIGS. 9 and 10. The lower end of the support 35 is provided with a protrusion 36 having the same form as the protrusion 22 of the support 18 described above, and is engaged with the protrusion 21 of the front leg member 13 when inserted as described above. It becomes. A bolt 37 is used to fix this state.

  The bolt 37 is shorter than the above-described bolt 24 shown in FIGS. Therefore, as shown in FIGS. 9 and 10, the bolt 37 passes through one hole 25 of the bearing sleeve 16, the holes 27 and 28 of the connecting sleeve 23, and the hole 29 a of the column 35. It does not reach the hole 26. Therefore, the column 37, the front leg member 13, and the connecting sleeve 23 are integrated by the bolt 37, and these integrated items are about the axis with respect to the bearing sleeve 16 so that the bolt 37 can move in the long hole 25. It can be rotated. Therefore, the handle 6 can be rotated, and the front wheel 8 can be directed in a desired direction by this rotation. The range in which the front wheel 8 can be turned is determined by the angular range in which the long hole 25 extends in the circumferential direction of the bearing sleeve 16.

  On the other hand, as shown in FIG. 11, the seat member 2 is fixed in the intermediate state or the tricycle state by using the above-described support column 19. Holes 38 and 39 are provided in the wall portions of the column receiver 19 facing each other. Moreover, the volt | bolt 24 shown in FIG.7 and FIG.8 is used also in order to implement | achieve the fixing structure shown in FIG. Of the holes 38 and 39 provided in the column support 19, at least the hole 39 is formed with a female screw into which the male screw of the bolt 24 is screwed.

  As shown in FIG. 11, the bolt 24 is sequentially inserted into the holes 38, 29 and 39, and when the male screw of the bolt 24 is screwed into the female screw of the hole 39, the seat member 2 is fixed. In order to make this fixed state more stable, a block 40 may be provided in the column support 19 and engaged with the convex portion 22 of the column 18.

  As can be seen from the comparison between (3) and (4) in FIG. 1 or the comparison between FIG. 4 and FIG. 5, the pedal 7 is detachably provided, and the position and axle of the front wheel 8 that are eccentric with respect to the axle 9. 9 can be selectively attached to any of the above positions. A specific example of such a configuration will be described with reference to FIG.

  In the front wheel 8, a female screw hole 41 is provided at a position eccentric with respect to the axle 9, and a female screw hole 42 is provided at a position on the axle 9. On the other hand, a male screw 43 is formed at the end of the pedal 7. The pedal 7 can be attached to the front wheel 8 by screwing the male screw 43 into the female screw hole 41 or 42. Then, by setting the target to which the male screw 43 is screwed as the female screw hole 41, the pedal 7 can be attached at a position eccentric with respect to the axle 9 as shown by a solid line in FIG. On the other hand, the pedal 7 can be attached at a position on the axle 9 as shown by a two-dot chain line in FIG.

  The pedal 7 preferably includes a center shaft portion 44 and an outer cylinder portion 45 disposed around the center shaft portion 44, and the outer cylinder portion 45 is configured to be rotatably held around the axis of the center shaft portion 44. Thus, it is possible to prevent the foot placed on the pedal 7 from being rubbed by the pedal 7 regardless of the rotation of the front wheel 8. Although not shown, it is preferable that a rolling bearing is disposed between the center shaft 44 and the outer cylinder portion 45.

  It will be understood that the states shown in FIGS. 1 (1) to (4) or FIGS. 2 to 5 can be obtained by the configuration described with reference to FIGS.

  1 (1) to 1 (3) and FIGS. 2 to 4, a guard 46 for protecting an infant seated on the seat member 2 is shown. The guard 46 is detachable from the seat member 2. Therefore, in the tricycle state shown in FIGS. 1 (4) and 5, the guard 46 is removed.

DESCRIPTION OF SYMBOLS 1 Child passenger vehicle 2 Seat member 3 Vehicle main body 4 Backrest part 5 Seat part 6 Handle 7 Pedal 8 Front wheel 9 Axle 10 Push rod 11 Rear wheel 12 Rear leg member 13 Front leg member 16 Bearing sleeve 17 Push rod receptacle 18, 35 Post 19 Post support 21, 22, 36 Convex 23 Connection sleeve 24, 37 Bolt

Claims (7)

With front and rear wheels,
A vehicle body having a rear leg member that rotatably holds the rear wheel and a front leg member that rotatably holds the front wheel;
A push rod attached to the vehicle body;
A seat member having a seat portion and a backrest portion and attached to the vehicle body,
The seat member can be selectively fixed with respect to the vehicle main body at a position suitable for a relatively front baby carriage and a position suitable for a relatively rear wheelbarrow,
Child passenger vehicle. The front leg member is held in the vehicle main body so that the front wheel can be turned as necessary.
A steering wheel for operating the vehicle to turn the front wheel, and being held by the vehicle body in a state of being connected to the front leg member;
The child passenger vehicle according to claim 1, further comprising a pedal for rotationally driving the front wheel by a leg.   The child vehicle according to claim 2, wherein the handle and the push rod are detachably provided to the vehicle main body.   The child passenger vehicle according to claim 2, wherein the pedal is detachably provided.   5. The child passenger vehicle according to claim 4, wherein the pedal can be selectively attached to either a position eccentric with respect to an axle of the front wheel or a position on the axle. 6.   6. The child passenger vehicle according to any one of claims 1 to 5, wherein the backrest portion is removable from the seat portion.   The child passenger vehicle according to any one of claims 1 to 6, wherein an inclination angle of the backrest portion with respect to the seat portion can be changed.

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