JP2006026220A

JP2006026220A - Vehicle for young child

Info

Publication number: JP2006026220A
Application number: JP2004211735A
Authority: JP
Inventors: Koji Nonaka; 浩司野中
Original assignee: NONAKA SEISAKUSHO KK
Current assignee: NONAKA SEISAKUSHO KK
Priority date: 2004-07-20
Filing date: 2004-07-20
Publication date: 2006-02-02
Anticipated expiration: 2024-07-20
Also published as: JP3986511B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle for young child which can be used by switching wheels into a linked state of being connected and linked to a drive source such as a motor (through a reduction gear or the like) or into an idling state of not being connected and linked to the drive source. <P>SOLUTION: A vehicle body is provided with: a plurality of wheels in contact with the ground; a power transmission board 2 for transmitting driving force to driving wheels 1 which are at least one of the wheels designated to be the driving wheels; and a switch means 3 for switching the driving wheels 1 into the linked state of being connected and linked to a power transmission board 2 or into the idling state of not being connected and linked to the power transmission board 2. The switch means 3 consists of a pair of linking arm members 4 which are attached to the driving wheels 1 and which make the power transmission board 2 in a state where it can be insert-held and opened; and an operation member 5 for operating the connection arms 4. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、幼児用乗物に関する。 The present invention relates to an infant vehicle.

従来の幼児用乗物で、モータ等を駆動源としたものがあり、モータから車輪に駆動力を伝達して走行させていた。そして、モータ（駆動源）と車輪は（減速機等を介して）常時連結連動していた。（例えば、特許文献１参照）。
実開平５−６８５９３号公報 There are conventional infant vehicles that use a motor or the like as a driving source, and the driving force is transmitted from the motor to the wheels. The motor (drive source) and the wheel are always connected and interlocked (via a speed reducer or the like). (For example, refer to Patent Document 1).
Japanese Utility Model Publication No. 5-68593

しかし、従来の幼児用乗物は、モータが非通電状態で作動しない場合でも、車輪は（減速機等を介して）モータと噛み合って連結しているため回転しづらく（抵抗が大きく）、乗車した幼児が自分で地面を蹴って走行させたり、車体を押して遊んだりすることは困難だった。そのため、幼児の遊び方（使用の仕方）に合わせて異なる玩具を用意しなければならなかった。
さらに、公園等の離れた敷地内で使用する場合、幼児が電動乗り物に乗って行くと目的地までにバッテリが切れたり、目的地に着いても十分に使用して遊ぶことができない問題があった。また、保護者等が、バッテリの電気を消耗させないために、その目的地まで電動乗り物を押して行くには抵抗が大きく困難であった。 However, even when a conventional vehicle for infants does not operate when the motor is not energized, the wheels are engaged with the motor (via a speed reducer or the like) and are thus connected to the motor, so that the vehicle is difficult to rotate (high resistance) and gets on. It was difficult for toddlers to kick the ground and run or to play by pushing the car. Therefore, it was necessary to prepare different toys according to how to play (how to use) the infant.
In addition, when used on a remote site such as a park, there is a problem that when an infant rides on an electric vehicle, the battery runs out to the destination, or even if it reaches the destination, it cannot be used and played sufficiently. It was. In addition, it is difficult and difficult for a guardian or the like to push the electric vehicle to the destination in order not to drain the electricity of the battery.

そこで、本発明は、車輪を、モータ等の駆動源と（減速機等を介して）連結連動する連動状態と、駆動源と連結連動しない空転状態と、に切り換えて使用することができる幼児用乗物を提供することを目的とする。 Therefore, the present invention is for an infant whose wheels can be used by switching between an interlocking state in which a wheel and a driving source such as a motor are connected and interlocked (via a speed reducer and the like) and an idle state in which the wheel is not interlocked and interlocked with the driving source. The purpose is to provide vehicles.

上記目的を達成するために、本発明に係る幼児用乗物は、車体に、地面に接する複数個の車輪と、該車輪のうち少なくとも１個を駆動車輪としてそれに駆動力を伝達する動力伝達盤と、を設け、上記駆動車輪を、該動力伝達盤と連結連動する連動状態と、動力伝達盤と連結連動しない空転状態と、に切り換える切換手段を備え、該切換手段は、上記駆動車輪に付設されると共に上記動力伝達盤を挾持開放自在とする一対の連繋アーム部材と、該連繋アーム部材を操作する操作部材と、から成るものである。 In order to achieve the above object, an infant vehicle according to the present invention includes a vehicle body, a plurality of wheels in contact with the ground, and a power transmission board that transmits at least one of the wheels as a driving wheel to transmit a driving force thereto. And a switching means for switching the driving wheel between an interlocking state in which the driving wheel is connected and interlocked with the power transmission board and an idle state in which the driving wheel is not interlocked and interlocked with the power transmission board, and the switching means is attached to the driving wheel. And a pair of linked arm members that allow the power transmission board to be held and opened, and an operation member that operates the linked arm members.

また、動力伝達盤の外周縁には、複数の係止凹部又は凸部が形成され、連繋アーム部材の上記動力伝達盤との当接面には、上記係止凹部又は凸部に嵌合する係止凸部又は凹部が形成されている。 Further, a plurality of locking recesses or protrusions are formed on the outer peripheral edge of the power transmission board, and the contact surface of the connecting arm member with the power transmission board is fitted into the locking recesses or protrusions. A locking projection or recess is formed.

また、操作部材は、上記一対の連繋アーム部材を相互に接近させる方向に弾発する弾発部材と、連繋アーム部材の間に配置されるカム部材と、を有する。 In addition, the operation member includes a resilient member that urges the pair of linked arm members toward each other and a cam member disposed between the linked arm members.

また、上記駆動車輪の駆動源にモータを用いたものである。 Further, a motor is used as a drive source of the drive wheel.

また、上記駆動車輪の駆動源にクランク軸にて連結された足踏みペダルを用いて、かつ、上記動力伝達盤を上記クランク軸に固設したものである。 The power transmission board is fixed to the crankshaft by using a foot pedal connected to the drive source of the drive wheel by a crankshaft.

本発明は、次のような著大な効果を奏する。
駆動車輪を、動力伝達盤と連結連動する連動状態と、動力伝達盤と連結連動しない空転状態と、に簡単に切り換えることができ、空転状態にすれば、乗車した幼児が地面を蹴って走行させて遊んだり、軽快に押して遊ぶことができ、幼児の遊び方に応じて別の玩具を用意する必要はなく、経済的にもよい。さらに、保護者が幼児を乗車させたまま車体を押して走行させることもできる。
また、この切換手段によれば、切換えする際に幼児が指を挟んだりする等の危険はなく、安全に使用できる。 The present invention has the following remarkable effects.
The driving wheel can be easily switched between an interlocking state in which the driving wheel is connected and interlocked with the power transmission board and an idle state in which the driving wheel is not interlocked with the power transmission board. It is possible to play by pushing and play lightly, and there is no need to prepare another toy according to how to play with the infant, and it is economical. Furthermore, it is possible for the guardian to travel by pushing the vehicle body with the infant on board.
Further, according to this switching means, there is no danger of an infant pinching a finger when switching, and it can be used safely.

以下、実施の形態を示す図面に基づき本発明を詳説する。
図１〜図５に示す第１の実施の形態に於て、車体６に地面Ｇに接する４個の車輪10を有し、その車輪10は、車体６の前方の中央に設けられた２個の前輪10ａと、車体６の後方の左右に設けられた２個の後輪10ｂと、から成っている。それぞれ後輪10ｂは、車軸16に回転可能に取り付けられている。また、車体６の前輪10ａの左右両外方には、模擬車輪20が地面Ｇから上方に少し離れて配置されている。車体６の上部には、前輪10ａを操作するハンドル11が付設され、ハンドル11より後方にシート部12が設けられている。 Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments.
In the first embodiment shown in FIG. 1 to FIG. 5, the vehicle body 6 has four wheels 10 in contact with the ground G, and the wheels 10 are two provided in the front center of the vehicle body 6. The front wheel 10a and two rear wheels 10b provided on the left and right of the rear of the vehicle body 6 are provided. Each of the rear wheels 10b is rotatably attached to the axle 16. In addition, on the left and right outer sides of the front wheel 10 a of the vehicle body 6, the simulated wheels 20 are disposed a little apart upward from the ground G. A handle 11 for operating the front wheel 10 a is attached to the upper portion of the vehicle body 6, and a seat portion 12 is provided behind the handle 11.

さらに、車体６内に、モータ13と、モータ13に電気的に接続されたバッテリ14と、が備えられ、ハンドル11とシート部12の間に、バッテリ14からモータ13への通電をオン・オフとするスイッチ15が取り付けられている。また、乗車した幼児が足を載せるための左右一対の足載せ片24，24が、車体６の模擬車輪20と後輪10ｂの間に、外方に突出状にかつ水平状に固設されている。 Further, a motor 13 and a battery 14 electrically connected to the motor 13 are provided in the vehicle body 6, and energization from the battery 14 to the motor 13 is turned on / off between the handle 11 and the seat portion 12. A switch 15 is attached. In addition, a pair of left and right footrests 24 and 24 for a child to ride on are fixed between the simulated wheel 20 and the rear wheel 10b of the vehicle body 6 so as to protrude outward and horizontally. Yes.

複数個の車輪10のうち少なくとも１個を駆動車輪１とし、図１に於て、右後輪10ｂが駆動車輪１である。車体６には、駆動車輪１に動力を伝達する動力伝達盤２を有し、図５に示すように、動力伝達盤２は、大径ギア部17と小径ギア部18を同心円状に重ねた二段状ギアであり、動力伝達盤２は車軸16に回転可能に取り付けられている。さらに、大径ギア部17を車体６の内方へ配置し（小径ギア部18を車体６の外方へ配置し）、大径ギア部17は、減速機19を介してモータ13と常時連動連結され、小径ギア部18の周縁部には、複数の係止凹部21が形成されている。 At least one of the plurality of wheels 10 is the drive wheel 1, and the right rear wheel 10 b is the drive wheel 1 in FIG. 1. The vehicle body 6 has a power transmission board 2 that transmits power to the drive wheel 1. As shown in FIG. 5, the power transmission board 2 has a large-diameter gear portion 17 and a small-diameter gear portion 18 stacked concentrically. It is a two-stage gear, and the power transmission board 2 is rotatably attached to the axle 16. Furthermore, the large-diameter gear portion 17 is arranged inside the vehicle body 6 (the small-diameter gear portion 18 is arranged outside the vehicle body 6), and the large-diameter gear portion 17 is always interlocked with the motor 13 via the speed reducer 19. A plurality of locking recesses 21 are formed in the peripheral portion of the small-diameter gear portion 18 that is connected.

本発明の幼児用乗物は、駆動車輪１を、動力伝達盤２に連結連動する連動状態と、動力伝達盤２と連結連動しない空転状態と、に切り換える切換手段３を備えている。なお、図３は連動状態を示し、図４は空転状態を示す。
切換手段３は、動力伝達盤２を挾持開放する一対の連繋アーム部材４，４と、その連繋アーム部材４，４を操作する操作部材５と、から成り、連繋アーム部材４，４は動力伝達盤２を包囲しかつ互いに線対称に配置されている。それぞれの連繋アーム部材４，４の一端部は、駆動車輪１の外方の側面部25の内側に、ピン等にて揺動自在に取り付けられ、他端部には係止爪26が向かい合って設けられている。 The infant vehicle according to the present invention includes switching means 3 for switching the driving wheel 1 between an interlocking state in which the driving wheel 1 is connected and interlocked with the power transmission board 2 and an idle state in which the driving wheel 1 is not interlocked and interlocked with the power transmission board 2. 3 shows the interlocking state, and FIG. 4 shows the idling state.
The switching means 3 includes a pair of connecting arm members 4 and 4 for holding and releasing the power transmission board 2 and an operation member 5 for operating the connecting arm members 4 and 4. The connecting arm members 4 and 4 transmit power. The board 2 is surrounded and arranged symmetrically with respect to each other. One end of each of the connecting arm members 4 and 4 is attached to the inside of the outer side surface 25 of the drive wheel 1 so as to be swingable by a pin or the like, and a locking claw 26 faces the other end. Is provided.

また、動力伝達盤２と当接する連繋アーム部材４の当接面23は、略円弧状に形成され、さらに、それぞれの当接面23には、動力伝達盤２の係止凹部21に嵌合する係止凸部22が２個ずつ突設されている。係止力を強固にするために、係止凹部21は角形溝に形成されている。また、係止凸部22も角形に形成されているが、連繋アーム部材４の揺動する動きに対応して係止凸部22が係止凹部21に嵌脱し易いように、係止凸部22には勾配面38が形成されている。
また、係止凸部22は、当接面23の中間部から両端部へ少し離れて設けられているが、当接面23の中間部に係止凸部22を設けて合計３個としてもよく、小径ギア部18の大きさや係止凹部21の個数等に応じて、係止凸部22の個数や配置は適宜設計変更するのも自由である。さらに、係止凸部22は１個でもよい。
また、逆に、小径ギア部18の係止凹部21を係止凸部21とし、それに伴って当接面23の係止凸部22を係止凹部22としてもよい。 Further, the contact surface 23 of the connecting arm member 4 that contacts the power transmission board 2 is formed in a substantially arc shape, and furthermore, each contact surface 23 is fitted in the locking recess 21 of the power transmission board 2. Two locking projections 22 are provided to project. In order to strengthen the locking force, the locking recess 21 is formed in a square groove. Further, although the locking projection 22 is also formed in a square shape, the locking projection 22 can be easily fitted into and removed from the locking recess 21 corresponding to the swinging movement of the connecting arm member 4. An inclined surface 38 is formed on 22.
Further, the locking projections 22 are provided a little away from the intermediate portion of the contact surface 23 to both end portions, but the locking projections 22 may be provided in the intermediate portion of the contact surface 23 so that a total of three is provided. In many cases, the number and arrangement of the locking projections 22 can be appropriately changed according to the size of the small-diameter gear portion 18 and the number of the locking recesses 21. Furthermore, the number of the locking projections 22 may be one.
Conversely, the locking concave portion 21 of the small-diameter gear portion 18 may be used as the locking convex portion 21, and the locking convex portion 22 of the contact surface 23 may be used as the locking concave portion 22.

操作部材５は、連繋アーム部材４，４を相互に接近させる方向に弾発するバネ材から成る弾発部材７と、連繋アーム部材４，４の間に配置されるカム部材８と、を有している。バネ受け部28，28が、連繋アーム部材４より駆動車輪１の周縁側の外方の側面部25に付設され、バネ受け部28には、連繋アーム部材４側へ開口する嵌込凹部30が形成されている。また、連繋アーム部材４の中間部の当接面23と反対面に、浅い取付窪部27が形成されている。そして、弾発部材７の一端は取付窪部27内に固設され、弾発部材７の他端は、嵌込凹部30内に固設されている。
また、連繋アーム部材４の挾持力を一層強くするために、それぞれの連繋アーム部材４に対し弾発部材７を複数個（例えば、２個ずつ合計４個設ける等）設けてもよい。
また、１本のバネ材から成る弾発部材７の両端部を、連繋アーム部材４，４に取付け、その弾発部材７の引張力により連繋アーム部材４，４を相互に接近させる方向に弾発するようにしてもよい。 The operation member 5 includes a spring member 7 made of a spring material that springs in the direction in which the linked arm members 4 and 4 are brought close to each other, and a cam member 8 disposed between the linked arm members 4 and 4. ing. Spring receiving portions 28 and 28 are attached to the outer side surface portion 25 on the peripheral side of the drive wheel 1 from the connecting arm member 4, and the spring receiving portion 28 has a fitting recess 30 that opens to the connecting arm member 4 side. Is formed. In addition, a shallow mounting recess 27 is formed on the surface opposite to the contact surface 23 of the intermediate portion of the connecting arm member 4. One end of the elastic member 7 is fixed in the mounting recess 27, and the other end of the elastic member 7 is fixed in the fitting recess 30.
Further, in order to further strengthen the holding force of the connecting arm member 4, a plurality of the resilient members 7 may be provided for each connecting arm member 4 (for example, a total of four elastic members 7 are provided two by two).
Further, both ends of the elastic member 7 made of one spring material are attached to the connecting arm members 4 and 4, and the elastic arms 7 and 4 are elastically moved toward each other by the tensile force of the elastic member 7. You may make it emit.

カム部材８は、連繋アーム部材４，４の係止爪26，26の間に設けられており、カム部材８には、駆動車輪１の外方の側面部25を貫通する軸部材32を介して、操作摘み31が外方に突出状に付設されている（図５参照）。そして、カム部材８は、軸部材32を中心として回転自在に外方の側面部25の内側に取り付けられている。さらに、図３又は図４に示す側面視にて、カム部材８の両側面は略弧状に形成され、カム部材８はその両端部が若干丸みを帯びた略楕円状又は略アーモンド状に形成されている。 The cam member 8 is provided between the locking claws 26 and 26 of the connecting arm members 4 and 4, and the cam member 8 is provided with a shaft member 32 penetrating the outer side surface portion 25 of the drive wheel 1. The operation knob 31 is attached to the outside in a protruding manner (see FIG. 5). The cam member 8 is attached to the inside of the outer side surface portion 25 so as to be rotatable about the shaft member 32. Furthermore, in the side view shown in FIG. 3 or FIG. 4, both side surfaces of the cam member 8 are formed in a substantially arc shape, and the cam member 8 is formed in a substantially elliptical shape or a substantially almond shape whose both ends are slightly rounded. ing.

図３に示す連動状態に於て、カム部材８の両側面には、係止爪26と嵌合する切欠部33が形成され、連繋アーム部材４の係止爪26を有する他端部には、カム部材８と接する摺動面34を形成している。さらに、摺動面34は、連動状態でカム部材８の側面に沿うように弧状に形成され、摺動面から係止爪26へ連続状に形成されている。 In the interlocked state shown in FIG. 3, notches 33 are formed on both side surfaces of the cam member 8 to be engaged with the locking claws 26, and the other end portion of the linkage arm member 4 having the locking claws 26 is formed. A sliding surface 34 that contacts the cam member 8 is formed. Further, the sliding surface 34 is formed in an arc shape along the side surface of the cam member 8 in an interlocked state, and is formed continuously from the sliding surface to the locking claw 26.

なお、図５に於て、駆動車輪１の外方の側面部25の外側に、キャップ部35を有しているが、操作摘み31が軸部材32を中心に揺動し易いように、操作摘み31の揺動範囲に於てキャップ部35には切欠が形成されている（図２参照）。 In FIG. 5, the cap portion 35 is provided outside the outer side surface portion 25 of the drive wheel 1, but the operation knob 31 is operated so that it can easily swing around the shaft member 32. A notch is formed in the cap portion 35 in the swing range of the knob 31 (see FIG. 2).

次に、図６〜図９に示す第２の実施の形態に於て、車体（フレーム）６には、地面Ｇに接する複数個の車輪10を備えており、この車輪10は１個の前輪10ａと左右２個の後輪10ｂから成る三輪車である。また、車体６には、前輪10ａを操作するハンドル11とシート部12が付設されている。 Next, in the second embodiment shown in FIGS. 6 to 9, the vehicle body (frame) 6 is provided with a plurality of wheels 10 in contact with the ground G, and this wheel 10 is one front wheel. This is a tricycle consisting of 10a and two rear wheels 10b. Further, the vehicle body 6 is provided with a handle 11 and a seat portion 12 for operating the front wheel 10a.

複数個の車輪10のうち少なくとも１個を駆動車輪１とし、図６に於て、前輪10ａが駆動車輪１である。駆動車輪１の中心に、クランク軸29が回転自在に付設され、クランク軸29の両端に足踏みペダル９，９が取り付けられている。クランク軸29には、駆動車輪１に動力を伝達するギア状の動力伝達盤２を一体状に固設され、クランク軸29が回転すると動力伝達盤２も回転するようになっている。つまり、駆動車輪１の駆動源に足踏みペダル９を用いている。さらに、動力伝達盤２の外周縁には、複数の係止凹部21が形成されている。 At least one of the plurality of wheels 10 is the drive wheel 1, and the front wheel 10 a is the drive wheel 1 in FIG. 6. A crankshaft 29 is rotatably attached to the center of the drive wheel 1, and foot pedals 9 and 9 are attached to both ends of the crankshaft 29. A gear-shaped power transmission board 2 for transmitting power to the drive wheel 1 is integrally fixed to the crankshaft 29, and when the crankshaft 29 rotates, the power transmission board 2 also rotates. That is, the foot pedal 9 is used as the drive source of the drive wheel 1. Further, a plurality of locking recesses 21 are formed on the outer peripheral edge of the power transmission board 2.

図６〜図９で示す本発明の幼児用乗物は、駆動車輪１を、動力伝達盤２に連結連動する連動状態と、動力伝達盤２と連結連動しない空転状態と、に切り換える切換手段３を備えている。なお、図７は連動状態を示し、図８は空転状態を示す。 The infant vehicle of the present invention shown in FIGS. 6 to 9 includes switching means 3 for switching the driving wheel 1 between an interlocking state in which the driving wheel 1 is connected and interlocked with the power transmission board 2 and an idle state in which the driving wheel 1 is not interlocked with the power transmission board 2. I have. 7 shows the interlocking state, and FIG. 8 shows the idling state.

連繋アーム部材４，４の係止爪26，26の間に配置されているカム部材８には、駆動車輪１の右の側面部25を貫通する軸部材32を介して、操作摘み31が外方に突出状に付設されている（図９参照）。カム部材８の操作摘み31が付設された面と反対側の面には、円形の支持盤37が付設されている。そして、連繋アーム部材４の（ピン等で取り付けられていない）他端部は、この支持盤37と駆動車輪１の側面部25との間に挟まれて、連繋アーム部材４は側面部25に一層安定して取り付けられている。 An operation knob 31 is externally attached to the cam member 8 disposed between the locking claws 26 and 26 of the connecting arm members 4 and 4 via a shaft member 32 penetrating the right side surface portion 25 of the drive wheel 1. It is attached in a protruding manner toward the direction (see FIG. 9). A circular support plate 37 is attached to the surface of the cam member 8 opposite to the surface to which the operation knob 31 is attached. The other end portion (not attached with a pin or the like) of the connecting arm member 4 is sandwiched between the support plate 37 and the side surface portion 25 of the drive wheel 1, and the connecting arm member 4 is attached to the side surface portion 25. It is attached more stably.

なお、図９に於て、駆動車輪１の左右両側面部25の外方に、キャップ部35を有しており、右の側面部25のキャップ部35には、操作摘み31が軸部材32を中心に揺動し易いように、操作摘み31の揺動範囲に於て切欠が形成されている（図６参照）。
図６〜図９に於て、図１〜図５と同一の符号は図１〜図５と同様の構成であるので説明を省略する。 In FIG. 9, a cap portion 35 is provided outside the left and right side surface portions 25 of the drive wheel 1, and an operation knob 31 is attached to the shaft portion 32 on the cap portion 35 of the right side surface portion 25. A notch is formed in the swing range of the operation knob 31 so that it can easily swing around the center (see FIG. 6).
6 to 9, the same reference numerals as those in FIGS. 1 to 5 have the same configurations as those in FIGS.

また、図10に示す第３の実施の形態において、連繋アーム部材４を弾発する弾発部材７は、板バネ材であり、弾発部材７は連繋アーム部材４，４より駆動車輪１の周縁側に配置されている。外方の側面部25には、円弧状に湾曲した帯板状のバネ受け部28，28が付設され、バネ受け部28，28に弾発部材７が付設されている。また、この場合、連繋アーム部材４には取付窪部27は形成されていない。 Further, in the third embodiment shown in FIG. 10, the resilient member 7 that ejects the connecting arm member 4 is a leaf spring material, and the resilient member 7 is arranged around the drive wheel 1 by the connecting arm members 4 and 4. It is arranged on the edge side. On the outer side surface portion 25, strip-shaped spring receiving portions 28, 28 curved in an arc shape are attached, and the spring member 7 is attached to the spring receiving portions 28, 28. In this case, the attachment recess 27 is not formed in the connecting arm member 4.

また、カム部材８の操作摘み31が付設された面と反対側の面には、円形の支持盤37が付設されている。そして、連繋アーム部材４の（ピン等で取り付けられていない）他端部は、この支持盤37と駆動車輪１の外方の側面部25との間に挟まれて、連繋アーム部材４は外方の側面部25に一層安定して取り付けられている。
なお、図10に於て、図３及び図４と同一の符号は図３及び図４と同様の構成であるので説明を省略する。 A circular support plate 37 is attached to the surface of the cam member 8 opposite to the surface to which the operation knob 31 is attached. The other end portion (not attached with a pin or the like) of the connecting arm member 4 is sandwiched between the support plate 37 and the outer side surface portion 25 of the driving wheel 1 so that the connecting arm member 4 is outside. It is attached to the side surface 25 on the other side more stably.
In FIG. 10, the same reference numerals as those in FIGS. 3 and 4 are the same as those in FIGS.

また、本発明の幼児用乗物は設計変更自由であり、車体６に設けられた地面Ｇに接する４個の車輪10のうち１個を駆動車輪１とし、その駆動車輪１の駆動源に足踏みペダル９を用いてもよい。具体的には、４個の車輪10は、２個の前輪10ａ、２個の後輪10ｂとから成り、前輪10ａを連結すると共に足踏みペダル９，９を取り付けたクランク軸29に、動力伝達盤２を一体状に固設する。 The infant vehicle of the present invention can be freely changed in design, and one of the four wheels 10 in contact with the ground G provided on the vehicle body 6 is used as a drive wheel 1, and a foot pedal is used as a drive source of the drive wheel 1. 9 may be used. Specifically, the four wheels 10 are composed of two front wheels 10a and two rear wheels 10b. The power transmission board is connected to a crankshaft 29 that connects the front wheels 10a and has foot pedals 9, 9 attached thereto. 2 is fixed integrally.

また、車体６の後部に押手部材を着脱自在に取り付け、車体６を後方から押せるようにしてもよい。さらに、その押手部材を伸縮自在としたり、押手部材にて前輪10ａを操作できる操作機構を備えるのも自由である。 Alternatively, a pusher member may be detachably attached to the rear part of the vehicle body 6 so that the vehicle body 6 can be pushed from the rear. Further, the pusher member can be freely extended and retracted, and an operation mechanism that can operate the front wheel 10a with the pusher member is freely provided.

上述した本発明である幼児用乗物の使用方法（作用）について説明する。
図３に示す連動状態から図４に示す空転状態に切り換える場合について説明する。まず、連動状態では、カム部材８は駆動車輪１の径方向に配置され、切欠部33，33には連繋アーム部材４，４の係止爪26，26が嵌合しており、連繋アーム部材４，４の係止凸部22は動力伝達盤２の係止凹部21に嵌合している。操作摘み31を（下方に）揺動させると（図２参照）、それと連動してカム部材８は回転する。この時、両方の連繋アーム部材４，４の係止爪26，26は切欠部33から離脱し、一方の（図３に於て、左側の）連繋アーム部材４の係止爪26は、カム部材８の略弧状の側面上を摺動し、また、他方の（図３に於て、右側の）連繋アーム部材４の摺動面34上をカム部材８が摺動する。そして、カム部材８は、連繋アーム部材４，４を互いに離れる方向に押圧し、係止凸部22は係止凹部21から離脱する。さらに、カム部材８は径方向に直交する位置まで回転し、その位置で連繋アーム部材４，４の係止爪26，26がカム部材８の両端部に係止される（図４参照）。この状態で、空転状態となる。 A method (action) of using the infant vehicle according to the present invention will be described.
A case of switching from the interlocking state shown in FIG. 3 to the idling state shown in FIG. 4 will be described. First, in the interlocked state, the cam member 8 is disposed in the radial direction of the drive wheel 1, and the locking claws 26, 26 of the connecting arm members 4, 4 are fitted in the notches 33, 33. The 4 and 4 locking projections 22 are fitted in the locking recesses 21 of the power transmission board 2. When the operation knob 31 is swung (downward) (see FIG. 2), the cam member 8 rotates in conjunction therewith. At this time, the locking claws 26 and 26 of both the linked arm members 4 and 4 are detached from the notch 33, and the locking claw 26 of one linked arm member 4 (on the left side in FIG. 3) The cam member 8 slides on the substantially arc-shaped side surface of the member 8 and on the sliding surface 34 of the other connecting arm member 4 (on the right side in FIG. 3). Then, the cam member 8 presses the connecting arm members 4 and 4 in directions away from each other, and the locking projection 22 is detached from the locking recess 21. Further, the cam member 8 rotates to a position orthogonal to the radial direction, and the locking claws 26 and 26 of the connecting arm members 4 and 4 are locked to both ends of the cam member 8 (see FIG. 4). In this state, it becomes an idling state.

また、空転状態では、モータ13が通電して作動しているか否かに関係なく駆動車輪１はモータ13と連動連結しておらず、駆動車輪１が回転するときにモータ13の影響を受けることはないが、バッテリ14の電気を消耗させないため、又は、モータ13の作動音を生じさせないために、モータ13を作動させずに使用することが好ましい。 In the idling state, the drive wheel 1 is not linked to the motor 13 regardless of whether or not the motor 13 is energized and is affected by the motor 13 when the drive wheel 1 rotates. However, it is preferable to use the motor 13 without operating it in order not to drain the electricity of the battery 14 or to generate an operating noise of the motor 13.

次に、空転状態から連動状態に切り換える場合は、操作摘み31を（上方に）揺動させると（図２参照）、それと連動してカム部材８は回転する。この時、一方の（図４に於て、左側の）連繋アーム部材４の係止爪26は、カム部材８の略弧状の側面上を摺動し、また、他方の（図４に於て、右側の）連繋アーム部材４の摺動面34上をカム部材８が摺動する。そして、弾発部材７，７は、連繋アーム部材４，４を互いに接近させる方向に弾発付勢し、係止凸部22は係止凹部21内に嵌合する。カム部材８は径方向に配置されるまで回転し、カム部材８の切欠部33，33内に係止爪26，26が嵌め込まれて係止され、連動状態となる。 Next, when switching from the idling state to the interlocking state, when the operation dial 31 is swung (upward) (see FIG. 2), the cam member 8 rotates in conjunction with it. At this time, the locking claw 26 of one of the connecting arm members 4 (on the left side in FIG. 4) slides on the substantially arc-shaped side surface of the cam member 8, and the other (in FIG. 4). The cam member 8 slides on the sliding surface 34 of the connecting arm member 4 (on the right side). Then, the elastic members 7 and 7 are elastically biased in a direction in which the connecting arm members 4 and 4 are brought close to each other, and the locking projection 22 is fitted in the locking recess 21. The cam member 8 rotates until it is arranged in the radial direction, and the locking claws 26 and 26 are fitted and locked in the notches 33 and 33 of the cam member 8 to be in an interlocked state.

以上のように、本発明である幼児用乗物は、車体６に、地面Ｇに接する複数個の車輪10と、車輪10のうち少なくとも１個を駆動車輪１としてそれに駆動力を伝達する動力伝達盤２と、を設け、駆動車輪１を、動力伝達盤２と連結連動する連動状態と、動力伝達盤２と連結連動しない空転状態と、に切り換える切換手段３を備え、切換手段３は、駆動車輪１に付設されると共に動力伝達盤２を挾持開放自在とする一対の連繋アーム部材４，４と、連繋アーム部材４を操作する操作部材５と、から成るので、空転状態にすれば、乗車した幼児が地面Ｇを蹴って走行させて遊んだり、軽快に押して遊ぶことができ、幼児の遊び方に応じて別の玩具を用意する必要はなく、経済的にもよい。さらに、保護者が幼児を乗車させたまま車体を押して走行させることもできる。
また、この切換手段３によれば、切換えする際に幼児が指を挟んだりする等の危険はなく、安全に使用できる。 As described above, the infant vehicle according to the present invention has a plurality of wheels 10 in contact with the ground G on the vehicle body 6 and a power transmission board that transmits at least one of the wheels 10 as a driving wheel 1 and transmits a driving force thereto. 2 and a switching means 3 for switching the driving wheel 1 between an interlocking state in which the driving wheel 1 is connected and interlocked with the power transmission board 2 and an idle state in which the driving wheel 1 is not interlocked and interlocked with the power transmission board 2. 1 and a pair of connecting arm members 4 and 4 that allow the power transmission board 2 to be held and opened, and an operation member 5 that operates the connecting arm member 4. An infant can play by kicking the ground G and driving it lightly, and it is not necessary to prepare another toy according to how the infant plays, and it is economical. Furthermore, it is possible for the guardian to travel by pushing the vehicle body with the infant on board.
Further, according to the switching means 3, there is no danger that an infant may pinch a finger when switching, and it can be used safely.

また、動力伝達盤２の外周縁には、複数の係止凹部又は凸部21が形成され、連繋アーム部材４，４の動力伝達盤２との当接面23には、係止凹部又は凸部21に嵌合する係止凸部又は凹部22が形成されたので、連動状態に於て、動力伝達盤２と連繋アーム部材４，４との連結力が強固なものとなり、十分に駆動力が駆動車輪１に伝達される。 Further, a plurality of locking recesses or protrusions 21 are formed on the outer peripheral edge of the power transmission board 2, and the locking recesses or protrusions are formed on the contact surfaces 23 of the connecting arm members 4 and 4 with the power transmission board 2. Since the locking convex portion or concave portion 22 that fits into the portion 21 is formed, the coupling force between the power transmission board 2 and the linking arm members 4 and 4 becomes strong in the interlocked state, and the driving force is sufficient. Is transmitted to the drive wheel 1.

また、操作部材５は、一対の連繋アーム部材４，４を相互に接近させる方向に弾発する弾発部材７と、連繋アーム部材４，４の間に配置されるカム部材８と、を有するので、駆動車輪１を連動状態と空転状態とに簡単に切換えができる。 In addition, the operation member 5 includes a resilient member 7 that urges the pair of linked arm members 4 and 4 to approach each other, and a cam member 8 disposed between the linked arm members 4 and 4. The drive wheel 1 can be easily switched between the interlocking state and the idling state.

また、駆動車輪１の駆動源にモータ13を用いたので、空転状態にすれば、乗車した幼児が地面Ｇを蹴って走行させて遊んだり、軽快に押して遊ぶことができ、再び連動状態とすれば電動で走行できるので、幼児の遊び方に応じて別の玩具を用意する必要はなく、経済的にもよい。
また、公園等の離れた敷地内で使用する場合、目的地に着くまでは空転状態にして、保護者等が手で押して本発明の幼児用電動乗り物を容易に（楽に）運ぶことができる。また、目的地に着くまでにバッテリ14の電気を消耗させることなく、目的地で十分に電動で走行して遊ぶことができる。 In addition, since the motor 13 is used as the drive source of the drive wheel 1, if it is in the idling state, the infant on board can play by kicking the ground G and playing it by pushing it lightly. Since it can be driven electrically, it is not necessary to prepare another toy according to how the infant plays, and it is economical.
In addition, when used on a remote site such as a park, the infant electric vehicle according to the present invention can be easily (easily) carried by a guardian or the like by pushing it by hand until it reaches the destination. Further, it is possible to run and play with sufficient electric power at the destination without consuming the electricity of the battery 14 until the destination is reached.

また、駆動車輪１の駆動源にクランク軸29にて連結された足踏みペダル９，９を用いて、かつ、動力伝達盤２をクランク軸29に固設したので、空転状態にすれば、保護者が幼児を乗車させたまま車体を押しても、足踏みペダル９，９は回転することがなく（足踏みペダル９，９が幼児の足に引っ掛かることがなく）、安全に走行させることもできる。 Further, since the power transmission board 2 is fixed to the crankshaft 29 by using the foot pedals 9 and 9 connected to the drive source of the drive wheel 1 by the crankshaft 29, the guardian can be brought into the idle state. Even if the infant is on the vehicle while pushing the vehicle body, the foot pedals 9 and 9 do not rotate (the foot pedals 9 and 9 do not get caught on the infant's feet) and can be run safely.

本発明の第１の実施の形態を示す側面図である。It is a side view which shows the 1st Embodiment of this invention. 要部側面図である。It is a principal part side view. 要部断面側面図である。It is a principal part sectional side view. 要部断面側面図である。It is a principal part sectional side view. 図１のＡ−Ａ線に沿う要部断面図である。It is principal part sectional drawing in alignment with the AA of FIG. 第２の実施の形態を示す側面図である。It is a side view which shows 2nd Embodiment. 要部断面側面図である。It is a principal part sectional side view. 要部断面側面図である。It is a principal part sectional side view. 図６のＢ−Ｂ線に沿う要部断面図である。It is principal part sectional drawing in alignment with the BB line of FIG. 第３の実施の形態を示す要部断面側面図である。It is a principal part cross-sectional side view which shows 3rd Embodiment.

Explanation of symbols

１駆動車輪
２動力伝達盤
３切換手段
４連繋アーム部材
５操作部材
６車体
７弾発部材
８カム部材
９足踏みペダル
10 車輪
13 モータ
21 係止凹部又は凸部
22 係止凸部又は凹部
23 当接面
29 クランク軸
Ｇ地面 DESCRIPTION OF SYMBOLS 1 Drive wheel 2 Power transmission board 3 Switching means 4 Linking arm member 5 Operation member 6 Car body 7 Bounce member 8 Cam member 9 Foot pedal
10 wheels
13 Motor
21 Locking recess or protrusion
22 Locking protrusion or recess
23 Contact surface
29 Crankshaft G Ground

Claims

A plurality of wheels (10) in contact with the ground (G) and a power transmission board (2) for transmitting at least one of the wheels (10) to the vehicle body (6) as a driving wheel (1). And switching means (3) for switching the drive wheel (1) between an interlocking state in which the driving wheel (1) is linked and interlocked with the power transmission board (2) and an idle state in which the driving wheel (2) is not interlocked and interlocked with the power transmission board (2). Prepared,
The switching means (3) is attached to the drive wheel (1) and is capable of holding and releasing the power transmission board (2) and a pair of linked arm members (4), (4), and the linked arm member ( 4) A vehicle for an infant characterized by comprising an operation member (5) for operating 4).

A plurality of locking recesses or protrusions (21) are formed on the outer peripheral edge of the power transmission board (2), and the contact surfaces of the connecting arm members (4) and (4) with the power transmission board (2) ( The vehicle for infants according to claim 1, wherein a locking convex portion or a concave portion (22) fitted to the locking concave portion or the convex portion (21) is formed in 23).

The operating member (5) is disposed between the resilient member (7) that projects in the direction in which the pair of linked arm members (4) and (4) approach each other, and the linked arm members (4) and (4). The infant vehicle according to claim 1 or 2, further comprising a cam member (8).

The infant vehicle according to claim 1, 2 or 3, wherein a motor (13) is used as a drive source of the drive wheel (1).

Using the foot pedals (9), (9) connected to the drive source of the drive wheel (1) by the crankshaft (29), the power transmission board (2) is fixed to the crankshaft (29). The infant vehicle according to claim 1, 2 or 3.