JP5637091B2 - Children's tricycle and children's tricycle wheels - Google Patents

Children's tricycle and children's tricycle wheels Download PDF

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JP5637091B2
JP5637091B2 JP2011165044A JP2011165044A JP5637091B2 JP 5637091 B2 JP5637091 B2 JP 5637091B2 JP 2011165044 A JP2011165044 A JP 2011165044A JP 2011165044 A JP2011165044 A JP 2011165044A JP 5637091 B2 JP5637091 B2 JP 5637091B2
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axle
front wheel
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connection switching
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剛志 廣瀬
剛志 廣瀬
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エム・アンド・エム株式会社
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Description

この発明は、子供用三輪車、および子供用三輪車の車輪に関するものであり、特に、保護者が子供用三輪車を手押し等するための押手棒を備えた子供用三輪車、およびこのような子供用三輪車に用いられる車輪に関するものである。   The present invention relates to a children's tricycle and a wheel of a children's tricycle, and particularly to a child's tricycle having a push bar for a guardian to push the child's tricycle by hand, and to such a child's tricycle. It relates to the wheel used.

昨今では、保護者が子供用三輪車を手押し等するための押手棒を備えた子供用三輪車が提供されている。このような押手棒を備えた子供用三輪車を走行させる場合には、子供がペダルをこいで走行させる場合と、保護者が押手棒を押して走行させる場合とがある。   In recent years, a children's tricycle equipped with a push bar for a guardian to manually push the children's tricycle has been provided. When a child's tricycle equipped with such a push bar is run, there are a case where the child runs with a pedal and a case where a guardian pushes the push bar to run.

ここで、保護者が押手棒を押して走行させる場合、従来の子供用三輪車では、前輪と共にペダルが回転する。したがって、子供が子供用三輪車に乗りながら、保護者が押手棒を押して走行させようとすると、ペダルの回転により子供にとって乗り心地が悪くなる場合があった。   Here, when a guardian pushes a push bar to travel, a pedal rotates together with a front wheel in a conventional children's tricycle. Therefore, when a child rides on a children's tricycle and the guardian tries to run by pushing the push bar, the rider may experience a poor ride comfort due to the rotation of the pedal.

そこで、子供がペダルをこいで走行させる場合と、保護者が押手棒を押して走行させる場合とで、ペダルの回転を切り換える子供用三輪車が、特許第２８２０３９６号公報（特許文献１）に開示されている。   Therefore, Japanese Patent No. 2820396 (Patent Document 1) discloses a children's tricycle that switches the rotation of the pedal depending on whether the child travels by pedaling or the guardian pushes the push bar. Yes.

特許第２８２０３９６号公報Japanese Patent No. 2820396

特許文献１によると、子供用三輪車の前輪内部に切換機構を備える構成としている。切換機構は、前輪の外面に設けられている操作レバーの回動に応じて、作動竿を内径側または外径側に向けて摺動させることにより、ペダルの取り付けられるクランク軸が前輪に対して空転する状態と、クランク軸と前輪とが一体回転する状態とを切り換える構成である。   According to Patent Document 1, a switching mechanism is provided inside the front wheel of a children's tricycle. The switching mechanism slides the operating rod toward the inner diameter side or the outer diameter side in accordance with the rotation of the operation lever provided on the outer surface of the front wheel, so that the crankshaft to which the pedal is attached is relative to the front wheel. This is a configuration for switching between the idling state and the state in which the crankshaft and the front wheel rotate integrally.

しかしながら、このような構成では、作動竿を径方向に移動させる必要があるため、前輪を径方向に大きく設ける必要がある。ここで、前輪を径方向に大きく設けると、例えばサドルの位置が高くなり、子供にとって子供用三輪車に乗りにくくなる虞がある。   However, in such a configuration, since it is necessary to move the operating rod in the radial direction, it is necessary to provide a large front wheel in the radial direction. Here, if the front wheels are provided large in the radial direction, for example, the position of the saddle is increased, which may make it difficult for the child to ride the child's tricycle.

この発明の目的は、保護者や子供にとって操作性を向上した子供用三輪車、およびこのような子供用三輪車に用いられる車輪を提供することである。   An object of the present invention is to provide a children's tricycle with improved operability for parents and children, and a wheel used in such children's tricycle.

この発明に係る子供用三輪車は、前輪と、前輪を駆動するペダルを有する前輪の車軸とを備える。子供用三輪車は、前輪の内部に収納されて、前輪と車軸とを一体回転させる状態と、前輪を車軸に対して空転させる状態とを切り換える切換機構を含む。切換機構は、車軸方向に移動可能であって、車軸方向一方側に位置すると、前輪と車軸とを連結して前輪と車軸とを一体回転させると共に、車軸方向他方側に位置すると、前輪と車軸とを非連結して前輪を車軸に対して空転させる連結切換部材を備える。   The child tricycle according to the present invention includes a front wheel and a front wheel axle having a pedal for driving the front wheel. The tricycle for children is housed inside the front wheel and includes a switching mechanism that switches between a state in which the front wheel and the axle are rotated together and a state in which the front wheel is idle with respect to the axle. The switching mechanism is movable in the axle direction. When the switching mechanism is located on one side in the axle direction, the front wheel and the axle are connected to rotate the front wheel and the axle integrally, and when located on the other side in the axle direction, the front wheel and the axle are connected. And a connection switching member that idles the front wheel with respect to the axle.

こうすることにより、連結切換部材を車軸方向他方側に位置させて、前輪と車軸とを非連結して前輪を車軸に対して空転させることができ、連結切換部材を車軸方向一方側に位置させて、前輪と車軸とを連結して前輪と車軸とを一体回転させることができる。したがって、前輪と車軸とを一体回転させる状態と、前輪を車軸に対して空転させる状態とを切り換える際には、連結切換部材を車軸方向に移動させるのみでよい。したがって、従来のように前輪を径方向に大きく設ける必要はなく、操作性を向上させることができる。   By doing so, the connection switching member can be positioned on the other side in the axle direction, the front wheel and the axle can be disconnected, and the front wheel can idle with respect to the axle, and the connection switching member can be positioned on the one side in the axle direction. Thus, the front wheel and the axle can be coupled to rotate the front wheel and the axle integrally. Therefore, when switching between a state in which the front wheels and the axle are rotated together and a state in which the front wheels are idle with respect to the axle, the connection switching member need only be moved in the axle direction. Therefore, it is not necessary to provide a large front wheel in the radial direction as in the prior art, and operability can be improved.

好ましくは、切換機構は、前輪の外面から車軸方向に押下されることにより、連結切換部材を車軸方向一方側から車軸方向他方側に移動させて、前輪と車軸とを非連結させる空転固定部材と、前輪の外面と平行に押下されることにより、連結切換部材を車軸方向他方側から車軸方向一方側に移動させて、前輪と車軸とを連結させる空転解除部材とを備える。   Preferably, the switching mechanism includes an idling fixing member that moves the connection switching member from one side in the axle direction to the other side in the axle direction by depressing from the outer surface of the front wheel in the axle direction, and disconnects the front wheel and the axle. And an idling release member that connects the front wheel and the axle by moving the connection switching member from the other side in the axle direction to the one side in the axle direction by being pressed parallel to the outer surface of the front wheel.

さらに好ましくは、切換機構は、車軸方向に所定の角度回転可能に設けられており、連結切換部材に係合するように設けられ、連結切換部材の車軸方向の位置を移動させる回転部材を備える。回転部材は、空転固定部材が押下されると、所定の角度回転することにより、連結切換部材を車軸方向一方側から車軸方向他方側に移動させる。   More preferably, the switching mechanism is provided so as to be rotatable by a predetermined angle in the axle direction, and is provided to engage with the connection switching member, and includes a rotation member that moves the position of the connection switching member in the axle direction. When the idling fixing member is pressed, the rotating member rotates by a predetermined angle to move the connection switching member from one side in the axle direction to the other side in the axle direction.

さらに好ましくは、切換機構は、連結切換部材を車軸方向一方側へ付勢させる付勢手段を備え、付勢手段は、空転解除部材が押下されると、その付勢力により連結切換部材を車軸方向他方側から車軸方向一方側に移動させる。   More preferably, the switching mechanism includes an urging means for urging the connection switching member toward one side in the axle direction, and the urging means causes the connection switching member to move in the axle direction by the urging force when the idling release member is pressed. It is moved from the other side to one side in the axle direction.

さらに好ましくは、空転解除部材は、空転固定部材の車軸方向の位置を固定するように設けられている。   More preferably, the idling release member is provided so as to fix the position of the idling fixing member in the axle direction.

この発明の他の局面においては、子供用三輪車に用いられる車輪に関する。車輪は、車輪を駆動するペダルを有する車輪の車軸を備え、車輪の内部に収納されて、車輪と車軸とを一体回転させる状態と、車輪を車軸に対して空転させる状態とを切り換える切換機構を含む。切換機構は、車軸方向に移動可能であって、車軸方向一方側に位置すると、車輪と車軸とを連結して車輪と車軸とを一体回転させると共に、車軸方向他方側に位置すると、車輪と車軸とを非連結して車輪を車軸に対して空転させる連結切換部材を備える。   In another aspect of the present invention, the present invention relates to a wheel used in a children's tricycle. The wheel includes a wheel axle having a pedal for driving the wheel, and is housed inside the wheel, and includes a switching mechanism that switches between a state in which the wheel and the axle rotate together and a state in which the wheel rotates idly with respect to the axle. Including. The switching mechanism is movable in the axle direction. When the switching mechanism is located on one side in the axle direction, the wheel and the axle are coupled to rotate the wheel and the axle integrally, and when located on the other side in the axle direction, the wheel and the axle are And a connection switching member that idles the wheel to the axle.

このような子供用三輪車の車輪は、車輪と車軸とを一体回転させる状態と、車輪を車軸に対して空転させる状態とを切り換える際には、連結切換部材を車軸方向に移動させるのみでよい。したがって、従来のように車輪を径方向に大きく設ける必要はなく、操作性を向上させることができる。   Such a wheel of a child tricycle needs only to move the connection switching member in the direction of the axle when switching between a state where the wheel and the axle are rotated together and a state where the wheel is idled relative to the axle. Therefore, it is not necessary to provide a large wheel in the radial direction as in the prior art, and operability can be improved.

こうすることにより、連結切換部材を車軸方向他方側に位置させて、前輪と車軸とを非連結して前輪を車軸に対して空転させることができ、連結切換部材を車軸方向一方側に位置させて、前輪と車軸とを連結して前輪と車軸とを一体回転させることができる。したがって、前輪と車軸とを一体回転させる状態と、前輪を車軸に対して空転させる状態とを切り換える際には、連結切換部材を車軸方向に移動させるのみでよい。したがって、従来のように前輪を径方向に大きく設ける必要はなく、操作性を向上させることができる。   By doing so, the connection switching member can be positioned on the other side in the axle direction, the front wheel and the axle can be disconnected, and the front wheel can idle with respect to the axle, and the connection switching member can be positioned on the one side in the axle direction. Thus, the front wheel and the axle can be coupled to rotate the front wheel and the axle integrally. Therefore, when switching between a state in which the front wheels and the axle are rotated together and a state in which the front wheels are idle with respect to the axle, the connection switching member need only be moved in the axle direction. Therefore, it is not necessary to provide a large front wheel in the radial direction as in the prior art, and operability can be improved.

この発明の一実施形態に係る子供用三輪車を示す側面図である。It is a side view which shows the tricycle for children concerning one Embodiment of this invention. 図１に示す前輪を拡大した側面図である。It is the side view to which the front wheel shown in FIG. 1 was expanded. 図２に示す前輪をＩＩＩ−ＩＩＩで切断した場合の断面図である。It is sectional drawing at the time of cut | disconnecting the front wheel shown in FIG. 2 by III-III. 図３に示す前輪をＩＶ−ＩＶで切断した場合の断面図であるIt is sectional drawing at the time of cut | disconnecting the front wheel shown in FIG. 3 by IV-IV. 前輪を車軸に対して空転させる状態を示す図である。It is a figure which shows the state which idles a front wheel with respect to an axle shaft.

以下、図面を参照して、この発明の一実施形態に係る子供用三輪車（以下、「三輪車」と言う）について説明する。図１は、この発明の一実施形態に係る三輪車１０を示す側面図である。なお、本明細書中において、三輪車１０の進行方向およびその逆の方向を前後方向（図１中の矢印Ａの方向）とし、水平方向であって前後方向に直交する方向を左右方向とし、鉛直方向であって前後方向に直交する方向を上下方向（図１中の矢印Ｂの方向）とする。左右方向は、前輪１１の車軸方向であって、三輪車１０に乗車した際の位置を言い、図１では、手前が左側（車軸方向一方側）となり、奥が右側（車軸方向他方側）となる。図１は、三輪車１０を左側から見た側面図である。   Hereinafter, a children's tricycle (hereinafter referred to as “tricycle”) according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing a tricycle 10 according to an embodiment of the present invention. In the present specification, the traveling direction of the tricycle 10 and the opposite direction are the front-rear direction (the direction of the arrow A in FIG. 1), the horizontal direction perpendicular to the front-rear direction is the left-right direction, and the vertical direction A direction perpendicular to the front-rear direction is a vertical direction (the direction of arrow B in FIG. 1). The left-right direction is the axle direction of the front wheel 11 and refers to the position when the vehicle is on the tricycle 10. In FIG. 1, the front is the left side (axle direction one side) and the back is the right side (axle direction other side). . FIG. 1 is a side view of the tricycle 10 as viewed from the left side.

図１を参照して、三輪車１０は、前方に位置する前輪１１と、後方に位置する一対の後輪１２ａ，１２ｂと、前輪１１と後輪１２ａ，１２ｂの間に位置し、子供が座るサドル１３と、サドル１３の後端に設けられる背凭れ２３と、サドル１３に座る子供の落下を防止するガード１５と、前輪１１の上方に位置し、子供が握る一対のグリップ１８ａ、１８ｂと、前後方向に延びるフレーム１４と、フレーム１４の前方でフレーム１４に連結固定される前方フレーム２２と、前輪１１の車軸３２の左右両端に固定され、子供が足で漕ぐことによって前輪１１を回転させるペダル１６と、前輪１１の上方側を覆うようにして設けられる泥除け１７と、フレーム１４の下方に設けられ、子供が足を載せる足載せステップ１９と、背凭れ２３の後方に設けられ、長さを調整可能であって、保護者が三輪車１０を手押し等するための押手棒２０とを備える。   Referring to FIG. 1, a tricycle 10 is located between a front wheel 11 positioned in front, a pair of rear wheels 12a and 12b positioned rearward, and a front wheel 11 and rear wheels 12a and 12b, and a saddle on which a child sits. 13, a backrest 23 provided at the rear end of the saddle 13, a guard 15 that prevents the child sitting on the saddle 13 from falling, a pair of grips 18 a and 18 b that are positioned above the front wheel 11 and gripped by the child, A frame 14 extending in the direction, a front frame 22 connected and fixed to the frame 14 in front of the frame 14, and a pedal 16 fixed to the left and right ends of the axle 32 of the front wheel 11 and rotating the front wheel 11 by a child rowing with a foot. A mudguard 17 provided so as to cover the upper side of the front wheel 11; a footrest step 19 provided on the lower side of the frame 14; It is, be adjustable in length, parents and a Oshide bar 20 for pushed like a tricycle 10.

フレーム１４は、サドル１３の下方側を固定する主フレーム１４ａと、主フレーム１４ａの後方で、左右両側に二股に分かれて、一対の後輪１２ａ，１２ｂの車軸に連結される一対の後方フレーム１４ｂ，１４ｃとを備える。主フレーム１４ａおよび後方フレーム１４ｂ，１４ｃは、前後方向に対して、所定の角度傾斜して設けられている。   The frame 14 includes a main frame 14a that fixes the lower side of the saddle 13 and a pair of rear frames 14b that are separated from the left and right sides of the main frame 14a and connected to the axles of the pair of rear wheels 12a and 12b. , 14c. The main frame 14a and the rear frames 14b and 14c are provided to be inclined at a predetermined angle with respect to the front-rear direction.

前方フレーム２２は、上下方向に延び、上端に一対のグリップ１８ａ，１８ｂを保持され、下端に前輪１１の車軸３２を固定される。グリップ１８ａ，１８ｂ、および前輪１１は、前方フレーム２２と共に、左右方向に所定の角度回動可能である。   The front frame 22 extends in the vertical direction, holds a pair of grips 18a and 18b at the upper end, and fixes the axle 32 of the front wheel 11 to the lower end. The grips 18 a and 18 b and the front wheel 11 can be rotated by a predetermined angle in the left-right direction together with the front frame 22.

サドル１３は、例えばレザー製の座部１３ａと、座部１３ａの下方側を覆うようにして設けられる枠部１３ｂとを備える。枠部１３ｂは、主フレーム１４ａに固定されている。また、枠部１３ｂは、座部１３ａの前端から後端に向かって延び、さらに座部１３ａの後端で上方向に延びるように設けられている。すなわち、枠部１３ｂのうち、上方向に延びる部分が背凭れ２３を構成することとなる。   The saddle 13 includes, for example, a leather seat 13a and a frame 13b provided so as to cover the lower side of the seat 13a. The frame portion 13b is fixed to the main frame 14a. The frame portion 13b extends from the front end to the rear end of the seat portion 13a, and further extends upward at the rear end of the seat portion 13a. That is, the portion extending upward in the frame portion 13 b constitutes the backrest 23.

ガード１５は、サドル１３の前方に位置して、その下端がフレーム１４に固定され、上下方向に延びる支持棒１５ａと、支持棒１５ａの上端部から左右両側に延び、サドル１３に座った子供を取り囲むようにして保護する円弧状の囲部１５ｂとを備える。囲部１５ｂは、支持棒１５ａを中心として、左右方向、すなわち、背凭れ２３に近づく方向および背凭れ２３から遠ざかる方向に、所定の角度回動可能である。そして、囲部１５ｂは、背凭れ２３に近づいた際、背凭れ２３に連結可能になっている。なお、図においては、囲部１５ｂが背凭れ２３に連結された状態を示している。   The guard 15 is positioned in front of the saddle 13 and has a lower end fixed to the frame 14 and a support bar 15a extending in the vertical direction, and a child sitting on the saddle 13 extending from the upper end of the support bar 15a to the left and right sides. And an arcuate surrounding portion 15b that protects the surrounding portion. The surrounding portion 15b can rotate by a predetermined angle around the support rod 15a in the left-right direction, that is, in a direction approaching the backrest 23 and in a direction away from the backrest 23. The surrounding portion 15 b can be connected to the backrest 23 when approaching the backrest 23. In addition, in the figure, the surrounding part 15b has shown the state connected with the backrest 23. FIG.

ここで、前輪１１について詳細に説明する。   Here, the front wheel 11 will be described in detail.

図２は、図１に示す前輪１１を拡大した側面図である。なお、図２は、前輪１１を左側から見た側面図であって、車軸３２とペダル１６とを省略して図示している。図３は、図２に示す前輪１１をＩＩＩ−ＩＩＩで切断した場合の断面図である。なお、図３中で、左側（車軸方向一方側）の位置と、右側（車軸方向他方側）の位置とを示している。図４は、図３に示す前輪１１をＩＶ−ＩＶで切断した場合の断面図である。   FIG. 2 is an enlarged side view of the front wheel 11 shown in FIG. FIG. 2 is a side view of the front wheel 11 as viewed from the left side, in which the axle 32 and the pedal 16 are omitted. FIG. 3 is a cross-sectional view of the front wheel 11 shown in FIG. 2 cut along III-III. In addition, in FIG. 3, the position of the left side (axle direction one side) and the right side (axle direction other side) are shown. 4 is a cross-sectional view of the front wheel 11 shown in FIG. 3 cut along IV-IV.

図２〜図４を参照して、前輪１１は、その中心に、前輪１１を駆動するペダル１６の取り付けられた車軸３２が設けられている。車軸３２は、右側のペダル１６と左側のペダル１６とにそれぞれ設けられ、車軸３２の周面を覆う円筒形状の車軸連結部材３２ａにより、それぞれが連結されて、一体回転する。   2 to 4, the front wheel 11 is provided with an axle 32 to which a pedal 16 for driving the front wheel 11 is attached at the center thereof. The axles 32 are provided on the right pedal 16 and the left pedal 16, respectively, and are connected to each other by a cylindrical axle connecting member 32a that covers the peripheral surface of the axle 32, and rotate integrally.

ここで、前輪１１には、前輪１１と車軸３２とを一体回転させる状態と、前輪１１を車軸３２に対して空転させる状態とを切り換える切替機構３３が設けられている。切替機構３３は、前輪１１の内部に、連結切替部材３４と、空転固定部材３０と、空転解除部材３１と、回転部材３５と、付勢手段としての第一のバネ部３６とを備える。なお、図３および図４においては、前輪１１と車軸３２とを一体回転させる状態を示している。   Here, the front wheel 11 is provided with a switching mechanism 33 that switches between a state in which the front wheel 11 and the axle 32 rotate together and a state in which the front wheel 11 rotates idly with respect to the axle 32. The switching mechanism 33 includes a connection switching member 34, an idling fixing member 30, an idling release member 31, a rotating member 35, and a first spring portion 36 as urging means inside the front wheel 11. 3 and 4 show a state in which the front wheel 11 and the axle 32 are rotated together.

前輪１１は、車軸３２を中心とする円筒状のホイール部材１１ｃと、前輪１１の左側を覆う前輪１１の左側面１１ａであるホイール左カバーと、前輪１１の右側を覆う前輪１１の右側面１１ｂであるホイール右カバーとによって、内部に切換機構３３の各部材を収容する空間を形成する。なお、これに限ることなく、前輪は、例えば、第一の円筒状の部材の左側端部を底面で閉じ、この底面を前輪の左側面としたホイール左側部材と、第二の円筒状の部材の右側端部を底面で閉じ、この底面を前輪の右側面としたホイール右側部材とを左右方向に組合わせることにより、内部に切換機構３３の各部材を収容する空間を形成してもよい。また、図示はしないが、例えば、前輪１１の左側面１１ａに、空転固定部材３０および空転解除部材３１に沿うようにして「ＦＲＥＥ−ＲＯＣＫ」の文字が描かれていてもよい。また、前輪１１の左側面１１ａの内側には、固定部材３７が固定されている。   The front wheel 11 includes a cylindrical wheel member 11 c centering on the axle 32, a wheel left cover that is a left side surface 11 a of the front wheel 11 that covers the left side of the front wheel 11, and a right side surface 11 b of the front wheel 11 that covers the right side of the front wheel 11. A space for accommodating each member of the switching mechanism 33 is formed inside by a certain wheel right cover. However, the front wheel is not limited to this, for example, the left side member of the first cylindrical member is closed at the bottom surface, and the wheel left side member having the bottom surface as the left side surface of the front wheel and the second cylindrical member. The right end portion of the switching mechanism 33 may be closed in the left and right direction, and a wheel right side member having the bottom surface as the right side surface of the front wheel may be combined in the left-right direction to form a space for accommodating each member of the switching mechanism 33 therein. Although not shown, for example, the characters “FREE-ROCK” may be drawn on the left side surface 11 a of the front wheel 11 so as to be along the idling fixing member 30 and the idling release member 31. A fixing member 37 is fixed inside the left side surface 11 a of the front wheel 11.

固定部材３７は、平板状の部材であって、車軸方向から見た形状が略円状の部材である。そして、中央部に位置して、車軸３２が挿通される第一の貫通孔３７ａと、第一の貫通孔３７ａの周囲に周方向に等間隔で設けられる複数の第二の貫通孔３７ｂとを有する。第二の貫通孔３７ｂには、連結切替部材３４の凸部３４ｃが噛合するようにして挿通される。   The fixing member 37 is a flat plate-like member having a substantially circular shape when viewed from the axle direction. And the 1st through-hole 37a in which the axle shaft 32 is penetrated located in the center part, and the several 2nd through-hole 37b provided in the circumference direction at equal intervals around the 1st through-hole 37a Have. The convex part 34c of the connection switching member 34 is inserted into the second through hole 37b so as to be engaged therewith.

連結切替部材３４は、車軸３２が挿通される円筒形状の円筒部３４ａと、円筒部３４ａの一方側端部に位置して、外径側に延びる鍔部３４ｂとを有する。また、円筒部３４ａの鍔部３４ｂと反対側の端部には、複数の凸部３４ｃが設けられている。また、連結切替部材３４は、車軸３２と共に回転するように設けられている。   The connection switching member 34 has a cylindrical cylindrical portion 34a through which the axle 32 is inserted, and a flange portion 34b that is located at one end of the cylindrical portion 34a and extends to the outer diameter side. Moreover, the some convex part 34c is provided in the edge part on the opposite side to the collar part 34b of the cylindrical part 34a. The connection switching member 34 is provided so as to rotate together with the axle 32.

鍔部３４ｂは、回転部材３５の一部と係合するように設けられている。したがって、連結切替部材３４は、回転部材３５が左側から右側へ移動すると、鍔部３４ｂも共に移動するため、第一のバネ部３６を押しながら、左側から右側へ移動する。また、第一のバネ部３６の付勢力によって、連結切替部材３４は、右側から左側へ移動する。このとき、回転部材３５も共に右側から左側へ移動する。   The collar portion 34 b is provided to engage with a part of the rotating member 35. Therefore, when the rotation member 35 moves from the left side to the right side, the connection switching member 34 moves from the left side to the right side while pushing the first spring portion 36 because the flange portion 34b also moves. Further, the connection switching member 34 moves from the right side to the left side by the biasing force of the first spring portion 36. At this time, the rotating member 35 also moves from the right side to the left side.

複数の凸部３４ｃは、円筒部３４ａの端部から左側に突出するように設けられており、周方向に等間隔に設けられている。そして、固定部材３７の複数の第二の貫通孔３７ｂにそれぞれ挿入し噛合するように設けられている。したがって、凸部３４ｃと第二の貫通孔３７ｂとが噛合状態である場合、凸部３４ｃが回転すると、固定部材３７も共に回転する。凸部３４ｃと第二の貫通孔３７ｂとが噛合状態でない場合には、固定部材３７が回転しても、凸部３４ｃは回転しない。噛合状態と非噛合状態との切り替えは、連結切替部材３４の移動に伴う。すなわち、連結切替部材３４が左側から右側に移動すると、凸部３４ｃは、固定部材３７の第二の貫通孔３７ｂから抜け、噛合状態から非噛合状態へ切り替わる。連結切替部材３４が右側から左側に移動すると、凸部３４ｃは、固定部材３７の第二の貫通孔３７ｂに挿入されて、非噛合状態から噛合状態へ切り替わる。   The plurality of convex portions 34c are provided so as to protrude leftward from the end portion of the cylindrical portion 34a, and are provided at equal intervals in the circumferential direction. And it is provided so as to be inserted and meshed with the plurality of second through holes 37b of the fixing member 37, respectively. Therefore, when the convex part 34c and the 2nd through-hole 37b are meshing state, if the convex part 34c rotates, the fixing member 37 will also rotate. When the convex part 34c and the 2nd through-hole 37b are not meshing states, even if the fixing member 37 rotates, the convex part 34c does not rotate. Switching between the meshing state and the non-meshing state is accompanied by the movement of the connection switching member 34. That is, when the connection switching member 34 moves from the left side to the right side, the convex portion 34c is removed from the second through hole 37b of the fixing member 37 and switched from the meshing state to the non-meshing state. When the connection switching member 34 moves from the right side to the left side, the convex portion 34 c is inserted into the second through hole 37 b of the fixing member 37 and is switched from the non-meshing state to the meshing state.

連結切替部材３４は、上記したように左右方向、すなわち、車軸方向に移動可能である。連結切替部材３４は、車軸方向一方側、すなわち図３中の左側に位置すると、前輪１１と車軸３２とを連結して、前輪１１と車軸３２とを一体回転させる。そして、車軸方向他方側、すなわち図３中の右側に位置すると、前輪１１と車軸３２とを非連結して、前輪１１を車軸３２に対して空転させる。   As described above, the connection switching member 34 is movable in the left-right direction, that is, in the axle direction. When the connection switching member 34 is located on one side in the axle direction, that is, on the left side in FIG. 3, the front wheel 11 and the axle 32 are coupled to rotate the front wheel 11 and the axle 32 integrally. When the vehicle is positioned on the other side in the axle direction, that is, on the right side in FIG. 3, the front wheel 11 and the axle 32 are disconnected and the front wheel 11 is idled with respect to the axle 32.

空転固定部材３０は、車軸方向に所定の長さを有する円筒状の部材であって、前輪１１の左側面１１ａを円筒状の部材の一部が貫通するように設けられている。そして、空転固定部材３０は、円筒状の部材の一方側端部、すなわち、前輪１１の左側面側が、底面３０ｃにより閉じられた形状である。空転固定部材３０には、空転解除部材３１の爪部３１ａを引っ掛けることが可能な掛止部３０ａ，３０ｂが設けられている。掛止部３０ａ，３０ｂは、後述する空転固定部材３０の移動位置、すなわち、左側に位置する場合と右側に位置する場合とにあわせて、車軸方向に異なる位置で２箇所設けられている。掛止部３０ａ，３０ｂは、円筒状の表面から凹んだ形状である。   The idling fixing member 30 is a cylindrical member having a predetermined length in the axle direction, and is provided so that a part of the cylindrical member penetrates the left side surface 11 a of the front wheel 11. The idling fixing member 30 has a shape in which one end portion of the cylindrical member, that is, the left side surface side of the front wheel 11 is closed by the bottom surface 30c. The idling fixing member 30 is provided with latching portions 30 a and 30 b that can catch the claw portion 31 a of the idling release member 31. The latching portions 30a and 30b are provided at two positions at different positions in the axle direction in accordance with a moving position of an idling fixing member 30, which will be described later, that is, when located on the left side and when located on the right side. The latching portions 30a and 30b have a shape recessed from a cylindrical surface.

空転固定部材３０は、ユーザにより底面３０ｃを左側から右側へ、すなわち、図３中の矢印Ｃの方向に押下可能である。空転固定部材３０は、押下されると、左側から右側へ移動する。   The idling fixing member 30 can be pushed by the user from the left side to the right side, that is, in the direction of arrow C in FIG. When the idling fixing member 30 is pressed, it moves from the left side to the right side.

空転固定部材３０は、棒状部３５ａ，３５ｂを介して、回転部材３５と連結されている。したがって、空転固定部材３０が、ユーザにより底面３０ｃを押下されて、左側から右側へ移動すると、回転部材３５も共に左側から右側へ移動する。そして、回転部材３５が右側から左側へ移動すると、空転固定部材３０も共に右側から左側へ移動する。   The idling fixing member 30 is connected to the rotating member 35 through rod-like portions 35a and 35b. Accordingly, when the idle fixing member 30 is moved from the left side to the right side by pressing the bottom surface 30c by the user, both the rotating members 35 are also moved from the left side to the right side. When the rotating member 35 moves from the right side to the left side, the idling fixing member 30 also moves from the right side to the left side.

回転部材３５は、前後方向に延びる棒状の一対の棒状部３５ａ，３５ｂを含み、上下方向に延びる形状であって、上方側はその左右方向断面が長方形状であって、下方側はその左右方向断面が台形状である。回転部材３５は、その中央部に貫通孔を有し、貫通孔に連結切替部材３４の円筒部３４ａが挿通されている。回転部材３５は、上方側で棒状部３５ａ，３５ｂを介して空転固定部材３０に連結されている。また、回転部材３５は、中央部で連結切替部材３４の鍔部３４ｂと係合するように設けられており、具体的には、鍔部３４ｂの左側面が、回転部材３５の右側面３５ｃに接するように設けられている。   The rotating member 35 includes a pair of rod-like portions 35a and 35b extending in the front-rear direction, and has a shape extending in the vertical direction. The upper side has a rectangular cross section in the left-right direction, and the lower side has the left-right direction. The cross section is trapezoidal. The rotating member 35 has a through hole at the center thereof, and the cylindrical portion 34a of the connection switching member 34 is inserted through the through hole. The rotating member 35 is connected to the idling fixing member 30 via rod-like portions 35a and 35b on the upper side. The rotating member 35 is provided to engage with the flange portion 34b of the connection switching member 34 at the center portion. Specifically, the left side surface of the flange portion 34b is connected to the right side surface 35c of the rotation member 35. It is provided to touch.

回転部材３５は、下方側に位置して前後方向に延びる支軸Ｐを中心として、左右方向に所定の角度回転可能である。回転部材３５は、空転固定部材３０が左側から右側へ移動すると、それに伴い所定の角度回転して、連結切替部材３４を左側から右側へ移動させる。また、回転部材３５は、連結切替部材３４が右側から左側へ移動すると、それに伴い所定の角度回転して、空転固定部材３０を右側から左側へ移動させる。   The rotating member 35 is rotatable at a predetermined angle in the left-right direction around a support shaft P that is positioned on the lower side and extends in the front-rear direction. When the idling fixing member 30 moves from the left side to the right side, the rotating member 35 rotates by a predetermined angle along with it, and moves the connection switching member 34 from the left side to the right side. Further, when the connection switching member 34 moves from the right side to the left side, the rotating member 35 rotates by a predetermined angle along with it, and moves the idling fixing member 30 from the right side to the left side.

空転解除部材３１は、略四角柱状の部材であって、前輪１１の左側面１１ａに露出している形状が矢印である。空転解除部材３１は、上記した爪部３１ａと、爪部３１ａを付勢する第二のバネ部３１ｂとを有する。第二のバネ部３１ｂは、略四角柱状の部材の右端部に位置する円筒形状の部材の内部に、上下方向に伸び縮み可能なように設けられている。第二のバネ部３１ｂは、爪部３１ａが空転固定部材３０の掛止部３０ａ，３０ｂに引っ掛かっている場合には、付勢することなく、爪部３１ａが掛止部３０ａ，３０ｂから外れた場合に下方向へ付勢する。爪部３１ａは、略四角柱状の部材の下面から突出するように設けられており、第二のバネ部３１ｂの下部に位置するように設けられている。そして、爪部３１ａは、第二のバネ部３１ｂの伸び縮みにより、上下方向に移動する。また、爪部３１ａは、空転固定部材３０の掛止部３０ａ，３０ｂに引っ掛かるように設けられており、空転固定部材３０の車軸方向の位置を固定する。   The idling release member 31 is a substantially quadrangular prism-shaped member, and the shape exposed on the left side surface 11a of the front wheel 11 is an arrow. The idling release member 31 includes the above-described claw portion 31a and a second spring portion 31b that biases the claw portion 31a. The second spring portion 31b is provided inside the cylindrical member located at the right end of the substantially quadrangular columnar member so as to be able to expand and contract in the vertical direction. When the claw portion 31a is hooked on the latching portions 30a and 30b of the idling fixing member 30, the second spring portion 31b is detached from the latching portions 30a and 30b without being biased. In some cases, force downward. The claw portion 31a is provided so as to protrude from the lower surface of the substantially quadrangular columnar member, and is provided so as to be positioned below the second spring portion 31b. And the nail | claw part 31a moves to an up-down direction by expansion / contraction of the 2nd spring part 31b. Further, the claw portion 31a is provided so as to be hooked on the latching portions 30a, 30b of the idling fixing member 30, and fixes the position of the idling fixing member 30 in the axle direction.

空転解除部材３１は、ユーザにより前輪１１の左側面１１ａと平行に外径側へ、すなわち、図３中の矢印Ｄの方向に押下可能である。空転解除部材３１は、押下されると、第二のバネ部３１ｂが縮む。そうすると、爪部３１ａが掛止部３０ａから外れる。また、空転固定部材３０が押下された場合にも、第二のバネ部３１ｂが縮み、爪部３１ａが掛止部３０ｂから外れる。そして、空転固定部材３０の移動に伴い、爪部３１ａは掛止部３０ａに引っ掛かる。   The idling release member 31 can be pushed by the user to the outer diameter side in parallel with the left side surface 11a of the front wheel 11, that is, in the direction of arrow D in FIG. When the idling release member 31 is pressed, the second spring portion 31b contracts. If it does so, the nail | claw part 31a will remove | deviate from the latching | locking part 30a. In addition, when the idling fixing member 30 is pressed, the second spring portion 31b contracts and the claw portion 31a is detached from the latching portion 30b. As the idling fixing member 30 moves, the claw portion 31a is hooked on the latching portion 30a.

第一のバネ部３６は、連結切替部材３４と車軸方向に対向するように設けられており、その中心を車軸３２が挿通するように設けられている。また、第一のバネ部３６は、車軸方向に伸び縮み可能なように設けられている。第一のバネ部３６は、連結切替部材３４が左側に位置する場合には、付勢することなく、連結切替部材３４が右側に位置する場合に、連結切替部材３４を左側へ向けて付勢する。   The first spring portion 36 is provided so as to face the connection switching member 34 in the axle direction, and is provided so that the axle 32 is inserted through the center thereof. The first spring portion 36 is provided so as to be able to expand and contract in the axle direction. The first spring portion 36 does not bias when the connection switching member 34 is located on the left side, and biases the connection switching member 34 toward the left side when the connection switching member 34 is located on the right side. To do.

ここで、前輪１１と車軸３２とが一体回転する場合について説明する。   Here, a case where the front wheel 11 and the axle 32 rotate together will be described.

主に図３を参照して、まず、子供がペダル１６をこぐと、車軸３２が回転する。そうすると、連結切替部材３４が車軸３２と共に回転し、連結切替部材３４の凸部３４ｃと第二の貫通孔３７ｂとが噛合状態であることから、固定部材３７も共に回転する。そして、固定部材３７が固定されている前輪１１も回転する。これにより、前輪１１と車軸３２とが一体回転する。   Referring mainly to FIG. 3, first, when the child steps on the pedal 16, the axle 32 rotates. Then, the connection switching member 34 rotates together with the axle 32, and since the convex portion 34c of the connection switching member 34 and the second through hole 37b are in mesh with each other, the fixing member 37 also rotates. And the front wheel 11 to which the fixing member 37 is fixed also rotates. Thereby, the front wheel 11 and the axle 32 rotate integrally.

ここで、前輪１１と車軸３２とを一体回転させる状態から、前輪１１を車軸３２に対して空転させる状態へ移行する場合について説明する。   Here, a case will be described in which a transition is made from the state in which the front wheel 11 and the axle 32 rotate together to the state in which the front wheel 11 is idled with respect to the axle 32.

まず、図３に示す状態の空転固定部材３０が、ユーザにより矢印Ｃの方向へ押下される。そうすると、空転固定部材３０は、左側から右側へ移動する。このとき、空転解除部材３１の爪部３１ａは、空転固定部材３０の移動により、第二のバネ部３１ｂが縮み、掛止部３０ｂから外れて掛止部３０ａに引っ掛かる。また、このとき、回転部材３５が、空転固定部材３０の移動により、支軸Ｐを中心として、左側から右側へ所定の角度回転する。   First, the idle fixing member 30 in the state shown in FIG. 3 is pressed in the direction of arrow C by the user. Then, the idle fixing member 30 moves from the left side to the right side. At this time, the claw portion 31a of the idling release member 31 is contracted by the movement of the idling fixing member 30, and the second spring portion 31b is contracted to be detached from the latching portion 30b and hooked to the latching portion 30a. Further, at this time, the rotation member 35 rotates by a predetermined angle from the left side to the right side about the support shaft P by the movement of the idling fixing member 30.

そうすると、連結切替部材３４が、回転部材３５の回転により、第一のバネ部３６を押しながら、左側から右側へ移動する。すなわち、第一のバネ部３６は、縮んだ状態となる。このとき、連結切替部材３４の凸部３４ｃは、固定部材３７の第二の貫通孔３７ｂから抜け、凸部３４ｃと第二の貫通孔３７ｂとは噛合状態でなくなる。この状態を図５に示す。   Then, the connection switching member 34 moves from the left side to the right side while pushing the first spring portion 36 by the rotation of the rotating member 35. That is, the first spring portion 36 is in a contracted state. At this time, the convex portion 34c of the connection switching member 34 is removed from the second through hole 37b of the fixing member 37, and the convex portion 34c and the second through hole 37b are not in meshing state. This state is shown in FIG.

そうすると、図５を参照して、連結切替部材３４の凸部３４ｃと固定部材３７の第二の貫通孔３７ｂとが非噛合状態であるため、前輪１１と車軸３２とが非連結状態となる。したがって、前輪１１が回転しても、連結切替部材３４は回転せず、前輪１１の回転は車軸３２に伝わることはない。すなわち、前輪１１は、車軸３２に対して空転することとなる。このようにして、前輪１１と車軸３２とを一体回転させる状態から、前輪１１を車軸３２に対して空転させる。なお、図５は、前輪１１を車軸３２に対して空転させる状態を示す図である。   Then, with reference to FIG. 5, since the convex part 34c of the connection switching member 34 and the second through-hole 37b of the fixing member 37 are in the non-engagement state, the front wheel 11 and the axle 32 are in the non-connection state. Therefore, even if the front wheel 11 rotates, the connection switching member 34 does not rotate, and the rotation of the front wheel 11 is not transmitted to the axle 32. That is, the front wheel 11 is idled with respect to the axle 32. Thus, the front wheel 11 is idled with respect to the axle 32 from the state in which the front wheel 11 and the axle 32 are rotated together. FIG. 5 is a view showing a state in which the front wheel 11 is idled with respect to the axle 32.

すなわち、例えば保護者が押手棒２０を押して三輪車１０を走行させようとした場合に、上記したように、空転固定部材３０を矢印Ｃの方向へ押下すると、前輪１１は、車軸３２に対して空転することとなる。したがって、ペダル１６が回転することはない。   That is, for example, when a guardian pushes the push bar 20 to run the tricycle 10, as described above, when the idling fixing member 30 is pushed in the direction of arrow C, the front wheel 11 is idling with respect to the axle 32. Will be. Therefore, the pedal 16 does not rotate.

次に、前輪１１を車軸３２に対して空転させる状態から、前輪１１と車軸３２とを一体回転させる状態について説明する。   Next, a state in which the front wheel 11 and the axle 32 are integrally rotated from a state in which the front wheel 11 is idled with respect to the axle 32 will be described.

まず、図５に示す状態の空転解除部材３１が、ユーザにより矢印Ｄの方向へ押下される。そうすると、第二のバネ部３１ｂが掛止部３０ａから外れ、空転固定部材３０や回転部材３５等の車軸方向の位置が固定されなくなる。そうすると、縮んだ状態の第一のバネ部３６の付勢力により、連結切替部材３４が右側から左側へ移動する。このとき、回転部材３５が、連結切替部材３４の移動により、支軸Ｐを中心として、右側から左側へ所定の角度回転する。   First, the idling release member 31 in the state shown in FIG. 5 is pressed in the direction of arrow D by the user. If it does so, the 2nd spring part 31b will remove | deviate from the latching | locking part 30a, and the position of the axle | axis direction of the idling fixing member 30, the rotation member 35, etc. will no longer be fixed. Then, the connection switching member 34 moves from the right side to the left side by the biasing force of the first spring portion 36 in the contracted state. At this time, the rotation member 35 rotates from the right side to the left side by a predetermined angle around the support shaft P by the movement of the connection switching member 34.

そうすると、空転固定部材３０が、回転部材３５の回転により、右側から左側へ移動する。このとき、空転解除部材３１の爪部３１ａは、空転固定部材３０の移動により、掛止部３０ｂに引っ掛かる。   Then, the idling fixing member 30 moves from the right side to the left side by the rotation of the rotating member 35. At this time, the claw portion 31 a of the idling release member 31 is caught by the latching portion 30 b by the movement of the idling fixing member 30.

そして、連結切替部材３４の凸部３４ｃは、固定部材３７の第二の貫通孔３７ｂに挿入されて、凸部３４ｃと第二の貫通孔３７ｂとは、図３に示すような噛合状態となる。また、空転固定部材３０や回転部材３５においても、図３に示す位置に戻ることとなる。   And the convex part 34c of the connection switching member 34 is inserted in the 2nd through-hole 37b of the fixing member 37, and the convex part 34c and the 2nd through-hole 37b will be in a meshing state as shown in FIG. . Further, the idling fixing member 30 and the rotating member 35 also return to the positions shown in FIG.

図３を参照して、車軸３２が回転すると、連結切替部材３４の凸部３４ｃと固定部材３７の第二の貫通孔３７ｂとが噛合状態であるため、前輪１１と車軸３２とが連結状態となる。したがって、車軸３２が回転すると連結切替部材３４が共に回転し、固定部材３７を介して、車軸３２の回転が前輪１１に伝わる。すなわち、前輪１１と車軸３２とが一体回転することとなる。このようにして、前輪１１を車軸３２に対して空転させる状態から、前輪１１と車軸３２とを一体回転させる。   With reference to FIG. 3, when the axle 32 rotates, the convex portion 34 c of the connection switching member 34 and the second through hole 37 b of the fixing member 37 are engaged with each other, so that the front wheel 11 and the axle 32 are connected to each other. Become. Therefore, when the axle 32 rotates, the connection switching member 34 rotates together, and the rotation of the axle 32 is transmitted to the front wheel 11 via the fixed member 37. That is, the front wheel 11 and the axle 32 rotate together. Thus, the front wheel 11 and the axle 32 are integrally rotated from the state where the front wheel 11 is idled with respect to the axle 32.

このように、本願発明の三輪車１０によれば、連結切換部材３４を車軸方向他方側（右側）に位置させて、前輪１１と車軸２３とを非連結して前輪１１を車軸３２に対して空転させることができ、連結切換部材３４を車軸方向一方側（左側）に位置させて、前輪１１と車軸３２とを連結して前輪１１と車軸３２とを一体回転させることができる。したがって、前輪１１と車軸３２とを一体回転させる状態と、前輪１１を車軸３２に対して空転させる状態とを切り換える際には、連結切換部材３２を車軸方向に移動させるのみでよい。したがって、従来のように前輪を径方向に大きく設ける必要はなく、操作性を向上させることができる。   Thus, according to the tricycle 10 of the present invention, the connection switching member 34 is positioned on the other side (right side) in the axle direction, the front wheel 11 and the axle 23 are disconnected, and the front wheel 11 is idled with respect to the axle 32. The connection switching member 34 is positioned on one side (left side) in the axle direction, and the front wheel 11 and the axle 32 can be coupled to rotate the front wheel 11 and the axle 32 integrally. Therefore, when switching between the state in which the front wheel 11 and the axle 32 are rotated together and the state in which the front wheel 11 is idled with respect to the axle 32, the connection switching member 32 need only be moved in the axle direction. Therefore, it is not necessary to provide a large front wheel in the radial direction as in the prior art, and operability can be improved.

以上、図面を参照してこの発明の実施形態を説明したが、この発明は、図示した実施形態のものに限定されない。図示された実施形態に対して、この発明と同一の範囲内において、あるいは均等の範囲内において、種々の修正や変形を加えることが可能である。   As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to the thing of embodiment shown in figure. Various modifications and variations can be made to the illustrated embodiment within the same range or equivalent range as the present invention.

この発明は、子供用三輪車に有効に利用される。   The present invention is effectively used for a children's tricycle.

１０ 子供用三輪車、１１ 前輪、１１ａ 左側面、１１ｂ 右側面、１１ｃ ホイール部材、１２ａ，１２ｂ 後輪、１３ サドル、１３ａ 座部、１３ｂ 枠部、１４ フレーム、１４ａ 主フレーム、１４ｂ，１４ｃ 後方フレーム、１５ ガード、１５ａ 支持棒、１５ｂ 囲部、１６ ペダル、１７ 泥除け、１８ａ，１８ｂ グリップ、１９ 足載せステップ、２０ 押手棒、２２ 前方フレーム、２３ 背凭れ、３０ 空転固定部材、３０ａ，３０ｂ 掛止部、３０ｃ 底面、３１ 空転解除部材、３１ａ 爪部、３１ｂ 第二のバネ部、３２ 車軸、３２ａ 車軸連結部材、３３ 切替機構、３４ 連結切替部材、３４ａ 円筒部、３４ｂ 鍔部、３４ｃ 凸部、３５ 回転部材、３５ａ，３５ｂ 棒状部、３５ｃ 右側面、３６ 第一のバネ部、３７ 固定部材、３７ａ 第一の貫通孔、３７ｂ 第二の貫通孔。   10 children's tricycle, 11 front wheel, 11a left side, 11b right side, 11c wheel member, 12a, 12b rear wheel, 13 saddle, 13a seat, 13b frame, 14 frame, 14a main frame, 14b, 14c rear frame, 15 guard, 15a support bar, 15b enclosure, 16 pedal, 17 mudguard, 18a, 18b grip, 19 foot-holding step, 20 pusher bar, 22 front frame, 23 backrest, 30 idling fixing member, 30a, 30b latching part , 30c bottom surface, 31 idling release member, 31a claw part, 31b second spring part, 32 axle, 32a axle connecting member, 33 switching mechanism, 34 connection switching member, 34a cylindrical part, 34b collar part, 34c convex part, 35 Rotating member, 35a, 35b Bar-shaped portion, 35c Right side surface, 36 First spring portion, 37 Fixed member, 37a first through hole, 37b second through hole.

Claims (5)

前輪と、前記前輪を駆動するペダルを有する前記前輪の車軸とを備える子供用三輪車であって、
前記前輪の内部に収納されて、前記前輪と前記車軸とを一体回転させる状態と、前記前輪を前記車軸に対して空転させる状態とを切り換える切換機構を含み、
前記切換機構は、
車軸方向に移動可能であって、車軸方向一方側に位置すると、前記前輪と前記車軸とを連結して前記前輪と前記車軸とを一体回転させると共に、車軸方向他方側に位置すると、前記前輪と前記車軸とを非連結して前記前輪を前記車軸に対して空転させる連結切換部材と、
前記前輪の外面から車軸方向に押下されることにより、前記連結切換部材を車軸方向一方側から車軸方向他方側に移動させて、前記前輪と前記車軸とを非連結させる空転固定部材と、
前記前輪の外面と平行に押下されることにより、前記連結切換部材を車軸方向他方側から車軸方向一方側に移動させて、前記前輪と前記車軸とを連結させる空転解除部材とを備える、子供用三輪車。 A tricycle for children comprising a front wheel and an axle of the front wheel having a pedal for driving the front wheel,
A switching mechanism housed inside the front wheel and switching between a state in which the front wheel and the axle rotate together and a state in which the front wheel idles with respect to the axle;
The switching mechanism is
When it is movable in the axle direction and is located on one side in the axle direction, the front wheel and the axle are connected to rotate the front wheel and the axle integrally, and when located on the other side in the axle direction, the front wheel and A connection switching member that disconnects the axle and idles the front wheel relative to the axle ;
An idle fixing member that moves the connection switching member from one side in the axle direction to the other side in the axle direction by depressing from the outer surface of the front wheel in the axle direction, and disconnects the front wheel and the axle;
An idling release member for connecting the front wheel and the axle by moving the connection switching member from the other side in the axle direction to the one side in the axle direction by being pressed in parallel with the outer surface of the front wheel; Tricycle. 前記切換機構は、
車軸方向に所定の角度回転可能に設けられており、前記連結切換部材に係合するように設けられ、前記連結切換部材の車軸方向の位置を移動させる回転部材を備え、
前記回転部材は、前記空転固定部材が押下されると、所定の角度回転することにより、前記連結切換部材を車軸方向一方側から車軸方向他方側に移動させる、請求項１に記載の子供用三輪車。 The switching mechanism is
It is provided so as to be rotatable at a predetermined angle in the axle direction, and is provided so as to engage with the connection switching member, and includes a rotation member that moves the position of the connection switching member in the axle direction,
2. The children's tricycle according to claim 1 , wherein when the idling fixing member is pressed, the rotating member rotates the predetermined angle to move the connection switching member from one side in the axle direction to the other side in the axle direction. . 前記切換機構は、前記連結切換部材を車軸方向一方側へ付勢させる付勢手段を備え、
前記付勢手段は、前記空転解除部材が押下されると、その付勢力により前記連結切換部材を車軸方向他方側から車軸方向一方側に移動させる、請求項１または２に記載の子供用三輪車。 The switching mechanism includes a biasing unit that biases the connection switching member toward one side in the axle direction,
3. The children's tricycle according to claim 1 , wherein when the idling release member is pressed, the biasing means moves the connection switching member from the other side in the axle direction to the one side in the axle direction by the biasing force. 前記空転解除部材は、前記空転固定部材の車軸方向の位置を固定するように設けられている、請求項１〜３のいずれかに記載の子供用三輪車。 4. The child tricycle according to claim 1 , wherein the idling release member is provided so as to fix a position of the idling fixing member in an axle direction. 子供用三輪車に用いられる車輪であって、
前記車輪を駆動するペダルを有する前記車輪の車軸を備え、
前記車輪の内部に収納されて、前記車輪と前記車軸とを一体回転させる状態と、前記車輪を前記車軸に対して空転させる状態とを切り換える切換機構を含み、
前記切換機構は、
車軸方向に移動可能であって、車軸方向一方側に位置すると、前記車輪と前記車軸とを連結して前記車輪と前記車軸とを一体回転させると共に、車軸方向他方側に位置すると、前記車輪と前記車軸とを非連結して前記車輪を前記車軸に対して空転させる連結切換部材と、
前記車輪の外面から車軸方向に押下されることにより、前記連結切換部材を車軸方向一方側から車軸方向他方側に移動させて、前記車輪と前記車軸とを非連結させる空転固定部材と、
前記車輪の外面と平行に押下されることにより、前記連結切換部材を車軸方向他方側から車軸方向一方側に移動させて、前記車輪と前記車軸とを連結させる空転解除部材とを備える、子供用三輪車の車輪。 Wheels used for children's tricycles,
An axle of the wheel having a pedal for driving the wheel;
A switching mechanism that is housed inside the wheel and that switches between a state in which the wheel and the axle rotate together and a state in which the wheel idles with respect to the axle;
The switching mechanism is
When the vehicle is movable in the axle direction and is located on one side in the axle direction, the wheel and the axle are connected to rotate the wheel and the axle integrally, and when located on the other side in the axle direction, the wheel and A connection switching member that disconnects the axle and idles the wheel with respect to the axle ;
An idle fixing member that moves the connection switching member from one side in the axle direction to the other side in the axle direction by being pressed in the axle direction from the outer surface of the wheel, and disconnects the wheel and the axle;
An idling release member for connecting the wheel and the axle by moving the connection switching member from the other side in the axle direction to the one side in the axle direction by being pressed in parallel with the outer surface of the wheel; Tricycle wheel.
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