KR102766822B1 - Baby bike - Google Patents

Abstract

A bicycle for a toddler is disclosed. The disclosed bicycle for a toddler includes a saddle on which a toddler sits, a frame connected to a lower portion of the saddle, and a plurality of wheels rotatably connected to the frame, wherein the plurality of wheels include a front wheel connected to pedals and a pair of rear wheels arranged with the front wheels to maintain balance, and the saddle further includes a foot support connected to a lower portion of the saddle to support the feet of the toddler, and a connection connected to a lower portion of the saddle to be rotatably connected.

Description

Baby bike {BABY BIKE}

The present disclosure relates to a children's bicycle with improved usability and safety for children.

Children's bicycles are tricycles or three-wheeled bicycles with one front wheel and a pair of rear wheels that are easy to keep balanced while riding.

However, there was a problem in that infants' lower body was underdeveloped, so they could not directly touch the bicycle pedals, or they did not have the energy to continuously press the pedals, so the infants' feet could touch the rotating pedals and get hurt, or the infants' feet could interfere with the pedals and cause discomfort.

In addition, unlike regular bicycles, infants are more susceptible to damage from bicycle accidents than adults due to their immature physical development, and since infant bicycles are pulled and controlled by the infant's guardian rather than the infant controlling them, it is even more important to safely support the infant's body while riding them.

The purpose of the present disclosure is to provide a children's bicycle with improved convenience and safety for use by children.

In order to achieve the above object, the present disclosure can provide a bicycle for infants, including a saddle on which an infant sits, a frame portion connected to the lower part of the saddle portion, and a plurality of wheels rotatably connected to the frame portion, wherein the plurality of wheels include a front wheel connected to pedals and a pair of rear wheels arranged with the front wheels to maintain balance, and the saddle portion further includes a foot support portion connected to the lower part of the saddle portion to support the feet of an infant, and a connection portion rotatably connected to the lower part of the saddle portion.

The device further includes a steering unit connected to the front wheel to control the direction of the front wheel, and a pedal connected to the front wheel to rotate the front wheel, wherein the connecting unit is arranged closer to the steering unit than to the center of the saddle, the foot support unit can rotate 180 degrees around the connecting unit, and has a shape of a human sole, and a first length of the foot support unit in the longitudinal direction may be smaller than a second length of the saddle unit in the longitudinal direction.

The foot support member may include a first position where the foot support member is located below the saddle member and a second position where the foot support member is arranged to protrude from the saddle member by rotating from the first position, and the foot support member may be extended to be arranged on an extension of the connecting member and the pedal at the second position to support the user's foot, and the foot support member may further include a receiving member formed so that the steering member is arranged between the foot support members at the second position.

The foot support part comprises a space part having an empty space inside the space part and a balance support part arranged inside the space part and rotatably connected to the foot support part, wherein the balance support part comprises: a connecting shaft inserted into the foot support part and formed integrally with the balance support part, a rotating shaft extended from one end of the connecting shaft and rotatably connected to the foot support part, a first rotating spring arranged to surround the rotating shaft, having one end connected to the rotating shaft and supporting rotation of the rotating shaft in a first direction, a first sensor part supporting the other end of the first rotating spring and measuring a pressing force of the first rotating spring, a second rotating spring arranged parallel to the first rotating spring and surrounding the rotating shaft, having one end connected to the rotating shaft and supporting rotation of the rotating shaft in a second direction, a second sensor part supporting the other end of the second rotating spring and measuring a pressing force of the second rotating spring, a pressing part arranged to face the rotating shaft and selectively pressing the rotating shaft, and the first sensor part; It may include a processor connected to the second sensor unit and the pressurizing unit and controlling the first sensor unit, the second sensor unit, and the pressurizing unit.

The pressurizing portion includes a pressurizing shaft arranged to face the rotational axis and having a length adjusted to selectively contact the rotational axis, and a friction portion arranged at one end of the pressurizing shaft and having a shape complementary to the rotational axis, the pressurizing portion includes a first pressurizing portion arranged in front of the rotational axis and a second pressurizing portion arranged in the rear of the rotational axis, and the friction portion includes a material having elasticity, and the processor determines that the equilibrium state is reached when both the first pressure value measured by the first sensor portion and the second pressure value measured by the second sensor portion are less than a first preset reference value and exceed a preset setting time, and when the equilibrium state is determined, the pressurizing portion is adjusted to be separated from the rotational axis, and when the second pressure value measured by the second sensor portion exceeds the first preset reference value and is within a second preset reference value or less and exceeds the preset setting time, the processor determines that the state is supported, and when the state is determined to be supported, the processor resets the second pressure value measured by the second sensor portion to a third reference value. After being reset, if the first pressure value measured by the first sensor part exceeds the reference range of the third reference value, the balance support part rotates in the first direction with respect to the foot support part and it is determined that the infant bicycle is going uphill, and only the second pressurizing part is extended and the second pressurizing part is pressed so that it comes into contact with the rotation axis, and after being reset, if the second pressure value measured by the second sensor part exceeds the reference range of the third reference value, the balance support part rotates in the second direction with respect to the foot support part and it is determined that the infant bicycle is going downhill, and only the first pressurizing part is extended and the first pressurizing part is pressed so that it comes into contact with the rotation axis, and the second reference value is greater than the first reference value, and the pressing force applied by the first pressurizing part and the second pressurizing part is proportional to the measured first pressure value and the measured second pressure value exceeding the reference range of the third reference value, and the measured first pressure value and the measured second pressure value are greater than the third reference value, and a fourth reference value is determined in which the measured first pressure value and the measured second pressure value are greater than the third reference value. In the case of exceeding, both the first pressurizing portion and the second pressurizing portion can be controlled to come into contact with the rotating shaft.

FIG. 1 is a perspective view showing a children's bicycle according to one embodiment of the present disclosure.
FIG. 2 is a top schematic diagram showing a children's bicycle with a foot support member in a first position according to one embodiment of the present disclosure.
FIG. 3 is a top schematic diagram showing a toddler bicycle with a foot support member in a second position according to one embodiment of the present disclosure.
FIG. 4 is a side view showing a children's bicycle according to one embodiment of the present disclosure.
FIG. 5 is a top view showing a foot support according to another embodiment of the present disclosure.
Figure 6 is an enlarged view showing area A of Figure 5.
Figure 7 is a cross-sectional view taken along line BB of Figure 6.
FIG. 8 is a side schematic diagram showing the support state of a foot support part according to another embodiment of the present disclosure.
FIG. 9 is a side schematic diagram showing a foot support on a downhill slope according to another embodiment of the present disclosure.
FIG. 10 is a side schematic diagram showing a foot support part on the right side according to another embodiment of the present disclosure.

In order to fully understand the structure and effect of the present disclosure, preferred embodiments of the present disclosure will be described with reference to the accompanying drawings. However, the present disclosure is not limited to the embodiments disclosed below, but can be implemented in various forms and can have various changes. However, the description of the embodiments is provided so that the disclosure of the present disclosure is complete, and to fully inform a person having ordinary knowledge in the technical field to which the present disclosure belongs of the scope of the invention. In the accompanying drawings, the components are illustrated with their actual sizes enlarged for convenience of explanation, and the ratio of each component may be exaggerated or reduced.

When a component is described as being "on" or "in contact with" another component, it should be understood that it may be in direct contact with or connected to the other component, but there may be other components in between. On the other hand, when a component is described as being "directly on" or "in direct contact with" another component, it should be understood that there are no other components in between. Other expressions that describe the relationship between components, such as "between" and "directly between", can be interpreted similarly.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms may only be used to distinguish one component from another. For example, without departing from the scope of the present disclosure, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.

Singular expressions include plural expressions unless the context clearly dictates otherwise. Terms such as "comprises" or "having" are intended to specify the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, and may be interpreted to mean that one or more other features, numbers, steps, operations, components, parts, or combinations thereof may be added.

Unless otherwise defined, terms used in the embodiments of the present disclosure can be interpreted as having the meaning commonly known to a person of ordinary skill in the art.

Hereinafter, with reference to FIGS. 1 to 4, a children's bicycle (1)(1) according to one embodiment of the present disclosure will be described.

FIG. 1 is a perspective view showing a toddler bicycle (1) according to one embodiment of the present disclosure, FIG. 2 is a top schematic view showing a toddler bicycle (1) in which a foot support part (100) according to one embodiment of the present disclosure is in a first position, FIG. 3 is a top schematic view showing a toddler bicycle (1) in which a foot support part (100) according to one embodiment of the present disclosure is in a second position, and FIG. 4 is a side view showing a toddler bicycle (1) according to one embodiment of the present disclosure.

A children's bicycle (1) may mean a tricycle that a child can ride.

Specifically, a children's bicycle (1) includes a saddle (2) on which a child sits, a frame (3) connected to the lower portion of the saddle (2), and a plurality of wheels rotatably connected to the frame (3), wherein the plurality of wheels include a front wheel (4a) to which pedals (5) are connected and a pair of rear wheels (4b) arranged so as to maintain balance with the front wheels (4a), and the saddle (2) may include a foot support part (100) connected to the lower portion of the saddle (2) to support the child's feet, and a connection part (110) rotatably connected to the lower portion of the saddle (2).

The saddle (2) may be in the form of a chair on which an infant can sit, and may include a flat part (2a) on which the infant's buttocks rest, and a back support part (2b) formed integrally with the flat part (2a) and supporting the infant's back.

The frame part (3) is connected to the lower part of the saddle part (2) and can connect the saddle part (2) and a plurality of wheels. Specifically, the frame part (3) can rotatably connect one front wheel (4a) and a pair of rear wheels (4b) that are arranged at the rear of the front wheel (4a) and spaced apart from each other at a preset interval.

The plurality of wheel parts (4) may be composed of three, and may include a front wheel (4a) that controls direction and generates power by the rotation of the pedals (5), and a pair of rear wheels (4b) that are placed at the rear of the front wheels (4a) and balance the children's bicycle (1).

Specifically, the front wheel (4a) is connected to the pedal (5) and can rotate integrally with the pedal (5). That is, when the pedal (5) rotates, the front wheel (4a) rotates in the same direction as the rotation direction of the pedal (5), so that the front wheel (4a) can roll.

In addition, the front wheel (4a) is connected to the frame part (3) and can be connected to a steering part (6) that controls the steering of the front wheel (4a).

The steering part (6) is a handle that a child holds, and depending on the direction in which the child turns it while holding it, the direction of the front wheel (4a) changes, and the direction in which the child's bicycle (1) moves can be adjusted.

The foot support part (100) is positioned so as to be rotatable at the lower part of the saddle part (2) to support the foot of the infant, and can be positioned by rotating it to the first position and the second position according to the user's choice.

Specifically, the foot support member (100) can rotate 180 degrees around the connecting member (110) and can have the shape of a human sole.

The foot support member (100) prevents the infant's foot from interfering with the rotating pedal (5) by securing the infant's foot on the foot support member (100), thereby preventing the infant's foot from being injured or the infant's bicycle (1) from stopping arbitrarily due to the rotating pedal (5) interfering with the infant's foot.

In particular, the foot support member (100) can be extended to be positioned on an extension line of the connecting member (110) and the pedal (5) at a second position protruding from the saddle member (2) to support the user's foot.

Accordingly, when the foot support member (100) is in the second position, the foot support member (100) is positioned on an extension of the connecting member (110) and the pedal (5), so that infants, who have lower cognitive abilities than adults, can be prevented from arbitrarily touching the pedal (5) and the infant's feet can be supported so that they are continuously positioned on the foot support member (100).

In addition, the foot support part (100) can be connected to the lower part of the saddle part (2) through the connecting part (110), and the foot support part (100) can be selectively positioned protruding by rotating around the connecting part (110).

Specifically, the foot support member (100) may include a first position where the foot support member (100) is located below the saddle member (2) and a second position where the foot support member (100) is positioned to protrude from the saddle member (2) by rotating from the first position.

The connecting part (110) is arranged between the foot support part (100) and the saddle part (2) and can connect the foot support part (100) to the saddle part (2) so that it can rotate. One connecting part (110) can be connected to one foot support part (100).

For example, if the foot support member (100) is configured as a pair, the connecting member (110) may also be configured as a pair.

In addition, the connecting part (110) may be arranged more closely to the steering part (6) than to the center of the saddle part (2). Accordingly, when the foot support part (100) rotates, the connecting part (110) is connected to the rear of the foot support part (100) and rotates the foot support part (100) around the rear of the foot support part (100), thereby allowing the entire foot support part (100) to be selectively and stably positioned at the lower part of the saddle part (2).

In addition, the foot support member (100) may further include a receiving member (101) formed so that the steering member (6) is arranged between the foot support members (100) at the second position. The receiving member (101) can prevent the foot support members (100) from interfering with the steering member (6) when the foot support members (100) formed as a pair are arranged to protrude from the saddle member (2).

That is, a pair of foot support members (100) can be stably positioned with the steering member (6) inside the receiving member (101) through the receiving member (101) so that the foot support members (100) can be positioned as close to each other as possible. Accordingly, it is possible to prevent the infant's foot from slipping out between the foot support members (100) and the infant's foot from being arbitrarily detached from the foot support members (100).

The receiving portion (101) may have a shape complementary to the shape of the outer surface of the steering portion (6) having a circular cross-section. Accordingly, the receiving portion (101) can minimize the space it occupies without interfering with the steering portion (6) when the foot support portion (100) is positioned at the second position.

Accordingly, when the foot support part (100) is in a protruding state for use, the steering part (6) is placed in the receiving part (101) of the foot support part (100), so that even when the steering part (6) rotates, the foot support part (100) may not interfere with the steering part (6).

Accordingly, the foot support member (100) can prevent the infant's foot from interfering with the rotation of the pedal (5) by placing the foot on the foot support member (100) when the infant's foot does not touch the pedal (5), thereby improving the stability of use for the infant and at the same time increasing the convenience for the infant.

Additionally, the first length (L1) in the longitudinal direction of the foot support member (100) may be smaller than the second length (L2) in the longitudinal direction of the saddle member (2).

Accordingly, as illustrated in FIG. 2, when the foot support part (100) is not used, the foot support part (100) having the first length (L1) is placed in a state accommodated in the lower part of the saddle part (2) having the second length (L2) greater than the first length (L1), so that the foot support part (100) can be hidden in appearance, thereby improving the aesthetics of the children's bicycle (1) and adding user convenience by allowing the user to intuitively know whether or not it is being used.

Hereinafter, a children's bicycle (1) according to another embodiment of the present disclosure will be described with reference to FIGS. 5 to 9.

FIG. 5 is a top view showing a foot support part (100) according to another embodiment of the present disclosure, FIG. 6 is an enlarged view showing area A of FIG. 5, FIG. 7 is a cross-sectional view taken along line B-B of FIG. 6, FIG. 8 is a side schematic view showing a support state of a foot support part (100) according to another embodiment of the present disclosure, FIG. 9 is a side schematic view showing a foot support part (100) on a downhill according to another embodiment of the present disclosure, and FIG. 10 is a side schematic view showing a foot support part (100) on an uphill according to another embodiment of the present disclosure.

Here, the same reference numerals are used for the same configurations, and redundant descriptions are omitted. For example, the saddle part (2), the frame part (3), the plurality of wheels, and the connecting part (110) are the same as the configurations described above, and therefore redundant descriptions are omitted.

The foot support part (100) may include a space part (120) having an empty space inside the foot support part (100) and a balanced support part (130) positioned inside the space part (120) and rotatably connected to the foot support part (100).

That is, a space (120) may be formed inside the body forming the foot support part (100), and a balance support part (130) that directly supports the foot of an infant and is connected to the foot support part (100) so as to be rotatable may be included within the space (120).

Here, the foot support member (100) can rotate around the connecting member (110), the connecting member (110) can be positioned perpendicular to the ground, and the balance support member (130) can rotate around the connecting axis (131) that is parallel to the ground with respect to the foot support member (100).

Additionally, one balance support member (130) may be arranged on one foot support member (100), and a pair of connecting shafts (131) and rotating shafts (132) may be arranged.

The space (120) may include sufficient space so that the balance support (130) does not interfere with the foot support (100) while rotating around the connecting axis (131). That is, the space (120) may mean a space in which the balance support (130) is placed and rotates stably.

The balance support member (130) may have an area on which the infant's foot is directly supported, and may be connected to a connecting axis (131) and rotate around the connecting axis (131) with respect to the foot support member (100).

That is, the balance support member (130) can stably support the feet of a child not only when the child's bicycle (1) moves on a flat surface but also when the bicycle is on an uphill or downhill slope, so that the child's feet can be stably supported so that the child can be stably positioned on the child's bicycle (1) while the child's feet move arbitrarily or while the bicycle is moving on an inclined surface.

Specifically, the balance support member (130) includes a connecting shaft (131) that is inserted into the foot support member (100) and formed integrally with the balance support member (130), a rotating shaft (132) that is extended from one end of the connecting shaft (131) and rotatably connected to the foot support member (100), a first rotating spring (133-1) that is arranged to surround the rotating shaft (132), has one end connected to the rotating shaft (132), and supports rotation of the rotating shaft (132) in a first direction (R1), a first sensor member (134-1) that supports the other end of the first rotating spring (133-1) and measures the pressing force of the first rotating spring (133-1), and is arranged parallel to the first rotating spring (133-1) to surround the rotating shaft (132), has one end connected to the rotating shaft (132), and supports rotation of the rotating shaft (132) in a second direction (R2). It may include a second rotation spring (133-2) that supports rotation, a second sensor unit (134-2) that supports the other end of the second rotation spring (133-2) and measures the pressing force of the second rotation spring (133-2), a pressing unit (140) that is arranged to face the rotation shaft (132) and selectively pressurizes the rotation shaft (132), and a processor (9) that is connected to the first sensor unit (134-1), the second sensor unit (134-2), and the pressing unit (140) to control the first sensor unit (134-1), the second sensor unit (134-2), and the pressing unit (140).

The connecting shaft (131) is arranged between the balance support member (130) and the foot support member (100) to connect the balance support member (130) and the foot support member (100) while allowing the balance support member (130) to rotate relative to the foot support member (100).

Specifically, the connecting shaft (131) may protrude from the balance support member (130) and may be formed integrally with the balance support member (130), and a rotational shaft (132) rotatably connected to the foot support member (100) may be arranged at one end of the connecting shaft (131).

Accordingly, the connecting shaft (131) can be rotatably connected to the foot support member (100) along with the rotational axis (132).

Here, the connecting shaft (131) and the rotating shaft (132) can be positioned at the center with respect to the longitudinal direction of the balancing support member (130). That is, the connecting shaft (131) and the rotating shaft (132) can be positioned at the center in the longitudinal direction of the balancing support member (130).

Accordingly, when the connecting shaft (131) and the rotation shaft (132) rotate in the first direction (R1) or the second direction (R2), the rotational force required for rotation and the bending moment occurring in the rotation can be the same by applying pressure to the balance support member (130).

The rotation shaft (132) may have one end connected to the connecting shaft (131) and the other end rotatably connected to the foot support member (100). Here, the foot support member (100) may include a rotation groove (not shown) formed to stably support the other end of the rotation shaft (132).

In addition, the rotation shaft (132) may include a metal material, and a first rotation spring (133-1) and a second rotation spring (133-2) may be arranged on the outer surface of the rotation shaft (132).

The first rotary spring (133-1) may be arranged on the outer surface of the rotary shaft (132) so as to surround the rotary shaft (132), with one end connected to the rotary shaft (132) and the other end arranged toward the first sensor portion (134-1).

Accordingly, the rotation shaft (132) rotates according to the rotation of the balance support member (130), and the first rotation spring (133-1) connected to the rotation shaft (132) absorbs the rotational force and can pressurize the first sensor unit (134-1) located at the other end. Thereafter, when the first rotation spring (133-1) continues to rotate, the pressing force is measured through the first sensor unit (134-1), and at the same time, the first sensor unit (134-1) can generate resistance to the rotation of the first rotation spring (133-1).

Here, the first rotation spring (133-1) may be arranged so that the first sensor part (134-1) is positioned forward with respect to the rotation axis (132) so that resistance is generated in the first direction (R1), and the other end of the first rotation spring (133-1) faces forward.

For example, as illustrated in Fig. 8, the first direction (R1) means a counterclockwise rotation around the connecting axis (131), and may mean that the front end of the balance support member (130) is tilted toward the front of the children's bicycle (1).

The second rotary spring (133-2) is arranged parallel to the first rotary spring (133-1), and can be arranged on the outer surface of the rotary shaft (132) so as to surround the rotary shaft (132), with one end connected to the rotary shaft (132) and the other end facing the first sensor portion (134-1).

Accordingly, the rotation shaft (132) rotates according to the rotation of the balance support member (130), and the second rotation spring (133-2) connected to the rotation shaft (132) absorbs the rotational force and can pressurize the second sensor member (134-2) located at the other end. Thereafter, when the second rotation spring (133-2) continues to rotate, the pressing force is measured through the second sensor member (134-2), and at the same time, the second sensor member (134-2) can generate resistance to the rotation of the second rotation spring (133-2).

Here, the second rotation spring (133-2) may be positioned so that the second sensor part (134-2) is positioned rearward with respect to the rotation axis (132) so that resistance is generated in the second direction (R2), and the other end of the second rotation spring (133-2) faces rearward.

For example, as illustrated in Fig. 8, the second direction (R2) means a clockwise rotation around the connecting axis (131) and may mean that the rear end of the balance support member (130) is tilted toward the rear of the children's bicycle (1).

In addition, here, the front may mean the direction in which the front wheel (4a) of the infant bicycle (1) is positioned, and the rear may mean the direction in which the rear wheel (4b) of the infant bicycle (1) is positioned.

The first sensor unit (134-1) can be positioned in front with the rotation axis (132) as the center, and can selectively support the first rotation spring (133-1) and at the same time measure the pressing force applied by the other end of the first rotation spring (133-1) by the rotation of the first rotation spring (133-1) after being supported, and transmit the result to the processor (9).

For example, the first sensor unit (134-1) may include a pressure sensor and be placed inside the foot support unit (100). In addition, the first sensor unit (134-1) may transmit the measured pressure value to the processor (9) in various ways, such as wired or wireless.

The second sensor unit (134-2) can be positioned rearwardly centered on the rotation axis (132), and can selectively support the second rotation spring (133-2) and at the same time measure the pressing force applied by the other end of the second rotation spring (133-2) by the rotation of the second rotation spring (133-2) after being supported, and transmit the measured pressure to the processor (9).

For example, the second sensor unit (134-2) may include a pressure sensor and be placed inside the foot support unit (100). In addition, the second sensor unit (134-2) may transmit the measured pressure value to the processor (9) in various ways, such as wired or wireless.

The pressurizing portion (140) can be positioned to face the rotation shaft (132), and can be adjusted to selectively pressurize the rotation shaft (132) to generate resistance to the rotation of the rotation shaft (132) or to stop the rotation.

Specifically, the pressurizing portion (140) may include a pressurizing axis (140) that is arranged to face the rotation axis (132) and whose length is adjusted to selectively contact the rotation axis (132), and a friction portion (142) that is arranged at one end of the pressurizing axis and has a shape complementary to the rotation axis (132).

The pressurized shaft may have a multi-stage structure and its length may be adjusted by the control of the processor (9). For example, when the length of the pressurized shaft is extended, the friction part (142) located at one end of the pressurized shaft may come into contact with the rotational shaft (132) to improve the resistance to the rotational force of the rotational shaft (132).

Additionally, the length can be adjusted based on the driving force transmitted to the pressurized shaft. Here, the driving force can be various if it is configured to provide hydraulic or electric power.

In addition, the pressurizing portion (140) may include a first pressurizing portion (140-1) positioned in front of the rotation shaft (132) and a second pressurizing portion (140-2) positioned in the rear of the rotation shaft (132). That is, for one rotation shaft (132), a pair of pressurizing portions (140) may be positioned in front and rear of the rotation shaft (132), respectively.

Here, the first pressurizing unit (140-1) and the second pressurizing unit (140-2) can operate independently of each other under the control of the processor (9).

It may be placed at one end of the pressure portion (140) facing the rotation axis (132) of the friction portion (142), and may include a material having a frictional force greater than a certain level. For example, the friction portion (142) may include rubber.

The processor (9) is arranged in the infant bicycle (1) and can control the forward movement of the foot support part (100) and the balance support part (130).

Here, the processor (9) may include one or more of a central processing unit (CPU), a controller, an application processor (AP) or a communication processor (CP) and an ARM processor (9).

First, the processor (9) can determine that the state is in equilibrium if both the first pressure value measured by the first sensor unit (134-1) and the second pressure value measured by the second sensor unit (134-2) are less than the preset first reference value and exceed the preset setting time.

Here, the first reference value may mean a pressure value stored in the processor (9).

That is, when the first pressure value and the second pressure value are measured while the infant's foot is not resting on the balance support member (130), the processor (9) can determine that the balance state is present if the measured first pressure value and the second pressure value are less than the first reference value.

For example, as shown in FIG. 8, in the case of an equilibrium state, the equilibrium support member (130) may be rotated at a reference angle (a) in the second direction (R2) with respect to the foot support member (100).

Thereafter, when the processor (9) determines that the balance state is reached, the pressurizing member (140) can be adjusted to be spaced apart from the rotational axis (132). That is, since the rotational axis (132) is spaced apart from the pressurizing member (140) in the balance state, the balance support member (130) can freely rotate in the first direction (R1) or the second direction (R2) when the infant places his/her foot on the balance support member (130).

Meanwhile, the processor (9) can determine that the second pressure value measured by the second sensor unit (134-2) is in a support state if it exceeds the preset first reference value and is within the preset second reference value and exceeds the preset setting time.

Here, the first reference value and the second reference value may mean preset values stored in the processor (9), and the second reference value may mean a pressure value greater than the first reference value. In addition, the preset setting time may mean a preset time stored in the processor (9). For example, the preset setting time may be 5 seconds.

Accordingly, as shown in Fig. 8, when the infant's foot is placed on the balance support member (130), the rear end of the balance support member (130) rotates in the second direction (R2), and the second rotation spring (133-2) presses the second sensor member (134-2) so that the second pressure value can be measured.

Thereafter, the processor (9) can determine that the infant's foot is in a supported state, that is, settled on the balance support member (130), if the measured second pressure value is greater than the first reference value and exceeds the preset setting time.

Next, the processor (9), if it is determined to be in a support state, can reset the second pressure value measured by the second sensor unit (134-2) to a third reference value. That is, the second pressure value measured by applying pressure in the second direction (R2) may vary depending on the size of the infant's body, and can be reset based on the second pressure value measured according to the infant's body (body weight).

Accordingly, as described below, by resetting the second pressure value measured when various infants are riding to the third reference value, the following operation can be performed by adjusting to the body size of various infants.

Thereafter, as shown in FIG. 10, if the processor (9) is reset and the first pressure value measured by the first sensor unit (134-1) exceeds the reference range of the third reference value, the balance support unit (130) rotates in the first direction (R1) with respect to the foot support unit (100) and determines that the infant bicycle (1) is going uphill, and controls only the second pressurizing unit (140-2) to be extended so that the second pressurizing unit (140-2) comes into contact with the rotation axis (132) and applies pressure.

For example, as shown in Fig. 10, when the infant bicycle (1) is climbing a hill, the rear of the balance support member (130) may be rotated at a first angle (a1) in a first direction (R1) with respect to the foot support member (100).

That is, when the infant bicycle (1) is going uphill, the balance rotation part supporting the infant's feet rotates in the first direction (R1), and the first rotation spring (133-1) can pressurize the first sensor part (134-1).

Accordingly, as shown in Fig. 10, when a child's bicycle (1) is climbing an uphill slope, the balance support member (130) is maintained in a balanced state so that the child can stably support his or her feet against the uphill slope, thereby supporting the child to be stably positioned on the child's bicycle (1).

In particular, in the case of an uphill slope, the rotational force due to inertia in the second direction (R2) may become greater due to the self-weight due to the uphill slope, so only the second pressurizing portion (140-2) can pressurize the rear of the rotational axis (132) to effectively prevent the rotation of the rotational axis (132).

In addition, the pressing force applied by the second pressing member (140-2) may increase as the measured first pressure value increases. That is, as the measured first pressing force increases, the child's bicycle (1) is climbing a steeper slope, so the pressing force applied by the second pressing member (140-2) may be increased to support the balance support member (130) more stably.

Meanwhile, as illustrated in FIG. 9, if the second pressure value measured by the second sensor unit (134-2) after being reset exceeds the reference range of the third reference value, the processor (9) determines that the balance support unit (130) rotates in the second direction (R2) with respect to the foot support unit (100) and the infant bicycle (1) is going downhill, and controls only the first pressurizing unit (140-1) to be extended so that the first pressurizing unit (140-1) comes into contact with the rotational axis (132) and applies pressure.

For example, as shown in FIG. 9, when the children's bicycle (1) is going down a hill, the rear of the balance support member (130) may be rotated at a second angle (a2) in a second direction (R2) with respect to the foot support member (100).

That is, when the infant bicycle (1) is going uphill, the balance rotation part supporting the infant's feet rotates in the second direction (R2), and the second rotation spring (133-2) can pressurize the second sensor part (134-2).

In particular, in the case of a downhill slope, the rotational force due to inertia in the first direction (R1) may become greater due to the weight of the downhill slope, so only the first pressurizing portion (140-1) can pressurize the rear of the rotational shaft (132) to effectively prevent the rotation of the rotational shaft (132).

In addition, the pressing force applied by the first pressing member (140-1) may increase as the measured second pressure value increases. That is, as the measured second pressing force increases, the child's bicycle (1) is going down a steeper slope, so the pressing force applied by the first pressing member (140-1) may be increased to support the balance support member (130) more stably.

That is, the pressing force applied by the first pressing unit (140-1) and the second pressing unit (140-2) may be proportional to the measured first pressure value and the measured second pressure value exceeding the reference range of the third reference value.

Accordingly, by adjusting the pressure in proportion to the uphill and downhill slopes on which the infant bicycle (1) is moving, the infant's feet can be supported more stably.

In addition, the processor (9) can control both the first pressurizing unit (140-1) and the second pressurizing unit (140-2) to come into contact with the rotation shaft (132) when the measured first pressure value and the measured second pressure value exceed a fourth reference value that is greater than the third reference value.

Accordingly, when the infant bicycle (1) moves along a downhill or uphill slope with a very steep slope and a first pressure value or a second pressure value exceeding the fourth reference value is measured, both the first pressurizing portion (140-1) and the second pressurizing portion (140-2) come into contact with the rotational axis (132) to more stably fix the rotational axis (132), thereby preventing rotation of the rotational axis (132) and stably supporting the infant's feet.

Meanwhile, although infants may feel fearful of excessive inclines, since the stable balance of the balance support member (130) does not cause significant changes in the infant's feet, it provides psychological peace to the infant and, at the same time, by controlling rotation based on physically measured pressure values, stable support for the infant's feet on the infant bicycle (1) can be realized.

Although various embodiments of the present disclosure have been individually described above, each embodiment does not necessarily have to be implemented alone, and the configuration and operation of each embodiment may be implemented in combination with at least one other embodiment.

In addition, although the preferred embodiments of the present disclosure have been illustrated and described above, the present disclosure is not limited to the specific embodiments described above, and various modifications may be made by a person skilled in the art to which the present disclosure pertains without departing from the gist of the present disclosure as claimed in the claims, and such modifications should not be individually understood from the technical idea or prospect of the present disclosure.

1: Toddler bike 2: Saddle
3: Frame part 4: Wheel part
5: Pedal 6: Steering wheel
100: Supporting part 101: Receiving part
110: Connection 120: Space
130: Balanced support

Claims (5)

A saddle for a baby to sit on;
A frame part connected to the lower part of the saddle; and
A plurality of wheels rotatably connected to the above frame portion;
The above plurality of wheels,
Front wheel with pedals attached; and
A pair of rear wheels arranged to maintain balance with the front wheels;
The above saddle is,
A foot support part connected to the lower part of the above saddle to support the foot of the infant; and
Including a connecting member rotatably connected to the lower part of the above saddle;
A steering unit connected to the front wheel and controlling the direction of the front wheel; and
further comprising a pedal connected to the front wheel and rotating the front wheel;
The above connecting portion is positioned closer to the steering portion than to the center of the saddle portion,
The above foot support part can rotate 180 degrees around the above connecting part and has the shape of a human sole.
A children's bicycle in which the first length in the longitudinal direction of the foot support portion is shorter than the second length in the longitudinal direction of the saddle portion. delete In the first paragraph,
The above foot support part is,
A first position where the above foot support part is located below the saddle part; and
a second position in which the foot support member is positioned to rotate from the first position and protrude from the saddle member;
The above foot support part is,
Extended so as to be positioned above the extension of the connecting portion and the pedal at the second position, to support the user's foot,
A children's bicycle, wherein the foot support portion further includes a receiving portion formed so that the steering portion is positioned between the foot support portions at the second position. In the third paragraph,
A space having an empty space inside the above foot support portion; and
It includes a balance support part which is positioned inside the above space and is rotatably connected to the foot support part;
The above-mentioned balanced support part is,
A connecting shaft inserted into the above foot support member and formed integrally with the above balance support member;
A rotary shaft which is extended from one end of the above connecting shaft and is rotatably connected to the foot support member;
A first rotation spring arranged to surround the rotation axis, having one end connected to the rotation axis and supporting rotation of the rotation axis in a first direction;
A first sensor section supporting the other end of the first rotary spring and measuring the pressing force of the first rotary spring;
A second rotation spring arranged parallel to the first rotation spring and surrounding the rotation shaft, one end of which is connected to the rotation shaft and supports rotation of the rotation shaft in a second direction;
A second sensor section supporting the other end of the second rotary spring and measuring the pressing force of the second rotary spring;
A pressurizing unit positioned to face the rotation axis and selectively pressurizing the rotation axis; and
A bicycle for infants, comprising: a processor connected to the first sensor unit, the second sensor unit, and the pressurizing unit and controlling the first sensor unit, the second sensor unit, and the pressurizing unit. In paragraph 4,
The above pressurized part,
A pressurized shaft arranged to face the rotation axis and having a length adjusted to selectively contact the rotation axis; and
A friction part is disposed at one end of the above-mentioned compression shaft and has a shape complementary to the above-mentioned rotation shaft;
The above pressurized part,
A first pressurizing portion arranged in front of the above rotating shaft; and
Including a second pressurizing portion arranged at the rear of the above rotating shaft;
The above friction part includes a material having a frictional force greater than a certain level,
The above processor,
If both the first pressure value measured by the first sensor unit and the second pressure value measured by the second sensor unit are less than the preset first reference value, it is determined as an equilibrium state.
When the above equilibrium state is determined, the pressurizing part is adjusted to be separated from the rotation axis,
If the second pressure value measured by the second sensor unit exceeds the preset first reference value and is within the preset second reference value and exceeds the preset setting time, it is determined to be in a support state.
If the above support state is determined, the second pressure value measured by the second sensor unit is reset to the third reference value.
After being reset, if the first pressure value measured by the first sensor part exceeds the reference range of the third reference value, the balance support part rotates in the first direction with respect to the foot support part, and it is determined that the infant bicycle is going uphill, and only the second pressurizing part is extended so that the second pressurizing part contacts the rotation axis and applies pressure.
After being reset, if the second pressure value measured by the second sensor unit exceeds the reference range of the third reference value, the balance support unit rotates in the second direction with respect to the foot support unit, and the infant bicycle is judged to be going downhill, and only the first pressurizing unit is extended so that the first pressurizing unit contacts the rotation axis and applies pressure.
The above second reference value is greater than the above first reference value,
The pressing force applied by the first pressurizing portion and the second pressurizing portion is proportional to the measured first pressure value and the measured second pressure value exceeding the reference range of the third reference value,
A bicycle for infants, wherein when the measured first pressure value and the measured second pressure value exceed a fourth reference value that is greater than a third reference value, the first pressurizing portion and the second pressurizing portion are both controlled to come into contact with the rotating shaft.

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