KR20210137816A - Cart part and smart stroller include the same - Google Patents

Abstract

A cart unit and a smart stroller including the same are disclosed. The cart unit according to an embodiment of the present invention includes a folding unit. The folding unit may be folded in a direction toward a base by user manipulation. Accordingly, the volume of the cart unit and the smart stroller is reduced to facilitate storage. In addition, the folding unit can be folded only by a plurality of operations. Accordingly, the safety level of an infant seated in the smart stroller may be improved. Furthermore, the next operation among the plurality of operations may be automatically performed by applying a control signal. Accordingly, user convenience may be improved.

Description

A cart part and a smart stroller including the same {Cart part and smart stroller include the same}

The present invention relates to a cart unit and a smart stroller including the same, and more particularly, to a cart unit having a structure that can be easily folded while ensuring safety, and a smart stroller including the same.

A stroller refers to a tool on which an infant or toddler can be seated and driven by a guardian.

The stroller may be provided with a seating portion having a space for a large infant to be seated, and a cart portion provided with wheels for driving the stroller. The guardian may drive the stroller by pressing or pulling the cart after the infant is seated on the seating unit.

A general stroller is formed to have a structure including the seating part and the cart part. In particular, in the case of the seating part, it is formed large enough that the infant does not feel any discomfort while accommodated therein.

Therefore, it is common that an excessive size of space is required to store a conventional stroller. In order to overcome this, recently, a stroller having a structure in which a seating part and a cart part can be removed has been developed.

By the way, even in the case of a stroller having a structure in which the seating part and the cart part are separated, the cart part is formed with a lower side provided with wheels, etc., a center side provided with a member supporting the seat part, and an upper side provided with a handle part for a protector to grip. That is, there is a limit to reducing the volume of the stroller only by removing the seating portion.

Accordingly, studies on the cart part having a structure that can be folded to reduce the volume of the cart part are being conducted.

However, the baby stroller has the highest priority to ensure the safety of the infant accommodated therein. Therefore, when the process for reducing the volume of the cart is performed in a single step, an unintentional folding process may be performed due to a faulty operation of a guardian or a malfunction of the cart. In this case, the safety of the seated infant cannot be guaranteed.

Korean Patent Publication No. 10-2015-0079615 discloses a folding stroller. Specifically, it discloses a foldable stroller having a structure capable of reducing the volume by using a folding mechanism including a plurality of rotating elements.

However, this type of folding stroller is limited in that it can be applied only to a skeletal structure having a front wheel assembly, a rear wheel assembly, and a handle bar assembly. That is, there is a step that is difficult to apply to a stroller in which the rotation direction of the structure constituting the skeleton of the stroller is limited.

In addition, the foldable stroller of the above type must perform complex and multi-step steps to fold the stroller. Considering that the process proceeds after the stroller disclosed in the prior document is separated from the sheet, it is difficult for the user's convenience to be sufficiently improved.

Korean Patent Document No. 10-0887216 discloses a triple folding stroller. Specifically, a triple-folding stroller having a structure capable of forming a structure for forming a skeleton into a folded body and maintaining a folded state using a holding mechanism is disclosed.

However, this type of triple-folding stroller has a limitation in that it can be applied only to a stroller having a traditional structure, like the above-mentioned prior literature. That is, there is a limitation in that it is difficult to apply to a stroller having a structure in which the rotation direction of the structure constituting the skeleton of the stroller is limited.

Moreover, in the prior document, the folding operation is performed in a state in which the seat portion is coupled to the frame of the stroller. Therefore, when the seat portion of the stroller is formed of a hard material such as plastic rather than a soft material such as cloth, it is difficult to apply the structure disclosed in the preceding document.

Korean Patent Publication No. 10-2015-0079615 (2015.07.08.) Korean Patent Document No. 10-08897216 (2009.03.06.)

An object of the present invention is to provide a cart unit having a structure capable of solving the above-described problems and a smart stroller including the same.

First, an object of the present invention is to provide a cart unit having a structure that can reduce the space occupied during storage and a smart stroller including the same.

In addition, an object of the present invention is to provide a cart unit having a structure in which a process of reducing the space occupied during storage can be performed simply and a smart stroller including the same.

In addition, an object of the present invention is to provide a cart unit having a structure that can ensure the safety of a seated infant and a smart stroller including the same.

In order to achieve the above object, the present invention, the base; a vertical portion coupled to the base and extending upwardly; and a folding part coupled to the base and the vertical part, respectively, wherein the folding part includes: a base coupling part coupled to the base; a rotation rod rotatably coupled to the base coupling portion and accommodated in the vertical portion; And accommodated in the base coupling portion, it provides a cart portion comprising a rotation gear portion coupled to the rotation rod.

In addition, the folding part of the cart part may include a motor accommodated in the base coupling part, coupled to the rotating rod, and connected to an external power source to be energized.

In addition, the rotating gear unit of the cart may include a plurality of rotating gears, and the plurality of rotating gears may be gear-fitted to each other.

In addition, any one of the plurality of rotation gears of the cart unit may be gear-coupled to the rotation rod, and the other one of the plurality of rotation gears may be coupled to the motor.

In addition, the rotation gear portion of the cart portion, a first rotation gear gear-coupled to the rotation rod; a second rotation gear geared to the first rotation gear; a third rotation gear geared to the second rotation gear; a fourth rotation gear geared to the third rotation gear; and a fifth rotation gear coupled to the fourth rotation gear and the motor, respectively.

In addition, the rotation rod of the cart portion, a gear insertion portion that is a space for accommodating any one of the plurality of rotation gears; And it surrounds the gear insertion portion, and includes a tooth formed on one surface facing the received any one of the rotary gear, the one of the rotary gear may be gear-engaged with the tooth.

In addition, the inside of the base coupling portion of the cart portion, a gear receiving portion that is a space for accommodating the rotary gear portion; and a wiring accommodating part communicating with the gear accommodating part and being a space through which the wiring member passes, and the rotating gear part may include a wiring accommodating part as a space through which the wiring member passes.

In addition, the magnitude of the tension applied to the wiring member of the cart part may be inversely proportional to the magnitude of the angle between the vertical part and the base.

In addition, the folding part of the cart part is located outside the base coupling part, and includes a manipulation part coupled to the base coupling part so as to be able to move up and down in the vertical direction, and the manipulation part, both the vertical part and the base coupling part. It can be moved between a first position coupled to and a second position coupled only to the base coupling portion.

In addition, the operation portion of the cart portion, the pressing portion is formed to protrude in one direction; and a plurality of stopper insertion holes provided and arranged to be spaced apart from each other in a vertical direction, wherein the base coupling part is movably coupled in a direction toward the manipulation part and in a direction opposite to the manipulation part, and a plurality of the stoppers It may include a stopper that is inserted or drawn out into any one of the insertion holes.

In addition, when the operation part of the cart part is located at the first position, the stopper is inserted and coupled to the stopper insertion hole located at a relatively lower side among the plurality of stopper insertion holes, and the operation unit is located at the second position In this case, the stopper may be inserted and coupled to the stopper insertion hole positioned at a relatively upper side of the plurality of stopper insertion holes.

In addition, the present invention, the seat portion is formed with a space therein; and a cart part to which the seat part is detachably coupled, the cart part comprising: a base formed in a plate shape; a vertical portion connected to the base and extending upwardly of the base; and a folding part positioned between the base and the vertical part and connected to the base and the vertical part, respectively, wherein the folding part includes a base coupling part coupled to the base and extending toward the vertical part; a rotation rod rotatably coupled to the base coupling portion and accommodated in the vertical portion; a rotating gear unit accommodated in the base coupling unit and coupled to the rotating rod; And it is connected to the rotation gear unit, it provides a smart stroller comprising a motor operated according to the applied control signal.

In addition, the rotation gear unit of the smart stroller includes a plurality of rotation gears geared to each other, any one of the plurality of rotation gears is coupled to the rotation rod, and the other one of the plurality of rotation gears is the motor can be coupled to

In addition, the rotation rod of the smart stroller is recessed from one side facing the rotation gear part, a gear insertion part in which any one of the plurality of rotation gears is accommodated; And surrounds the gear insertion portion on the other side opposite to the one side, and a plurality of protrusions and depressions including a toothed portion, wherein any one of the plurality of rotation gears may be gear-coupled to the tooth portion.

In addition, the rotation gear of the smart stroller, first teeth and second teeth spaced apart from each other and disposed to face; and a wiring accommodating part formed between the first teeth and the second teeth to accommodate a wiring member that is electrically connected to the outside.

According to an embodiment of the present invention, the following effects can be achieved.

First, the cart unit includes a folding unit. The folding part is provided between the base and the vertical part, and is coupled to the base and the vertical part, respectively. The folding unit includes an operation unit. The manipulation unit may be coupled to both the base coupling part and the vertical part of the folding part by a user's pressing operation, or may be coupled only to the base coupling part.

In a state in which the manipulation unit is coupled only to the base coupling unit, the rotating rod provided in the vertical unit may be rotated. Accordingly, the vertical portion can be folded toward the base.

As a result, the space occupied by the cart unit is reduced, so that the smart stroller can be easily stored.

In addition, the user may move the manipulation unit by pressing the manipulation unit. The manipulation unit is provided with a pressing unit protruding toward the user. The user may move the operation unit by pressing the pressing unit with a foot or hand. In this process, the user can easily identify the relative height of the manipulation unit with the naked eye.

When the manipulation unit is coupled only to the base coupling unit by the pressing operation, the guardian may apply a control signal through the input device. The applied control signal operates the motor of the folding unit.

The folding part includes a rotation gear part. The rotation gear unit includes a plurality of rotation gears geared to each other. One of the rotating gears is coupled to the motor, and the other one of the rotating gears is coupled to the rotating rod. Accordingly, the rotation of the motor is transmitted to the rotating rod.

Accordingly, the user may automatically rotate the vertical portion by inputting a control signal through the input device. That is, the user can easily fold or unfold the vertical part. As a result, user convenience can be improved.

In addition, the folding unit can be folded only when a plurality of steps are performed. That is, only after the manipulation unit is pressed at least once, the vertical unit may be folded by the control signal input by the user and the rotation of the motor accordingly.

Therefore, even if a user's erroneous operation or malfunction of the folding part occurs, the folding part is not arbitrarily folded. Accordingly, the safety of the infant seated in the smart stroller may be improved.

1 is a perspective view illustrating a cart unit and a smart stroller including the same according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view illustrating a folding unit provided in the cart unit of FIG. 1 .
3 is an exploded perspective view illustrating a rotation gear unit and a wiring unit provided in the folding unit of FIG. 2 .
4 is a side view illustrating a rotation gear unit and a wiring unit provided in the folding unit of FIG. 2 .
5 to 7 are side views illustrating a state in which the folding unit of FIG. 2 is operated.
8 to 10 are side views illustrating a process in which the vertical part of the cart of FIG. 1 is folded.

Hereinafter, a cart unit and a smart stroller including the same according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In the following description, in order to clarify the characteristics of the present invention, descriptions of some components may be omitted.

Hereinafter, a cart unit and a smart stroller including the same according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In the following description, in order to clarify the characteristics of the present invention, descriptions of some components may be omitted.

1. Definition of terms

The term "front side" used in the following description refers to a direction in which the smart stroller 1 travels forward. It will be understood that in the embodiment shown in FIG. 1 , the front side means the left side.

The term "rear side" used in the following description refers to a direction in which the smart stroller 1 travels in reverse. It will be understood that in the embodiment shown in FIG. 1 , the rear side means the right side.

The term "upper side" used in the following description means the direction in which the smart stroller 1 is opposite to the ground. In the embodiment shown in FIG. 1 , the upper side will be understood to mean a direction in which the handle unit 300 is positioned.

The term "downward" used in the following description refers to the direction in which the smart stroller 1 faces the ground. It will be understood that in the embodiment shown in FIG. 1 , the lower side means a direction in which the base 100 is positioned.

The terms "left" and "right" used in the following description are used as a reference when the front side of the smart stroller 1 is viewed from the front.

The term "infant" used in the following description means a child of any age who cannot walk independently or can walk independently even though it is capable. In one embodiment, the infant may be less than 1 year of age.

The term "infant" used in the following description means a child of any age who cannot walk independently or can be transported using a vehicle or the like even if it is able to walk independently. In one embodiment, the infant may be between 1 and 6 years of age.

In the following description, "infant" and "infant" will be collectively referred to as "infant".

The term "seat part" used in the following description means an object in which a space in which an infant or toddler can be accommodated is formed. In an embodiment, the seat unit may be detachably coupled to a cradle unit provided in a vehicle or a cart unit capable of driving independently.

The term “conductive connection” used in the following description means that one or more members are connected so that an electrical signal, power, or the like can be transmitted. The connection may be established in a wired or wireless manner.

2. Description of the configuration of the smart stroller 1 according to an embodiment of the present invention

Referring to FIG. 1 , a smart stroller 1 according to an embodiment of the present invention is shown. In the illustrated embodiment, the cart unit 10 is detachably coupled to the seat unit 20 . Accordingly, the smart stroller 1 according to the embodiment of the present invention can be formed.

The detachable coupling between the cart unit 10 and the seat unit 20 may be formed by an elastic member (not shown) or the like. When the cart unit 10 and the seat unit 20 are coupled, the cart unit 10 and the seat unit 20 may be electrically connected to each other.

The seat portion 20 is formed in a sphere shape with an open upper side as a whole. The lower side and the front side of the seat portion 20 are formed to be rounded.

The upper side of the seat portion 20 is open. An infant may be accommodated in the seat unit 20 through the open portion.

A predetermined space is formed inside the seat portion 20 . A child can be accommodated in the space. The front side and the lower side of the predetermined space may be provided with a cushion formed of a soft material.

In the illustrated embodiment, the seat portion 20 has a left-right symmetrical shape. Accordingly, the user can use the seat portion 20 without considering the left and right directions of the seat portion 20 . Accordingly, user convenience may be increased.

The seat unit 20 may be detachably coupled to the cart unit 10 . When the seat unit 20 is coupled to the cart unit 10 , the seat unit 20 may be electrically connected to the cart unit 10 .

This is due to the premise that the seat 20 is moved in a state in which the infant is seated. That is, in order to reduce the weight of the seat unit 20 , it is preferable that a battery for electricity is provided in the cart unit 10 .

In addition, an air cover unit (not shown) may be detachably coupled to the seat unit 20 . The air cover unit (not shown) may filter the air flowing into the inner space of the seat unit 20 by physical and electrostatic attraction.

Accordingly, air from which fine dust has been removed is introduced into the inner space of the seat unit 20, so that the infant can inhale clean air.

The cart unit 10 may be driven indoors or outdoors. The cart unit 10 may be driven indoors or outdoors by rotating the main wheel 110 and the sub wheel 120 by the force applied by the user to the handle unit 300 .

The seat unit 20 may be detachably coupled to the cart unit 10 . Specifically, the seat part 20 is detachably coupled to the seat support part 210 of the cart part 10 .

A battery (not shown) may be provided in the cart unit 10 . The battery (not shown) supplies power for the cart unit 10 to operate. In an embodiment, the battery (not shown) may be utilized to drive a motor or the like accommodated therein according to a signal applied to the display unit 240 positioned adjacent to the handle unit 300 .

In addition, the battery (not shown) may supply power to the seat unit 20 coupled to the cart unit 10 to be energized. Accordingly, an air cleaning module (not shown) or an LED (not shown) provided in the seat unit 20 may emit light.

In the illustrated embodiment, the cart unit 10 includes a base 100 , a vertical unit 200 , and a handle unit 300 and a folding unit 400 . Hereinafter, each configuration of the cart unit 10 will be described in detail, but the folding unit 400 will be described as a separate clause.

The base 100 forms a frame in the horizontal direction at the lower side of the cart unit 10 . The base 100 extends in a direction toward and away from the vertical portion 200 in the front-rear direction in the illustrated embodiment.

In one embodiment, the base 100 may extend horizontally with respect to the ground. Accordingly, the user may seat small items such as a bag on the base 100 .

The base 100 may be formed in a plate shape. In the illustrated embodiment, the base 100 is formed so that the front side edge and the rear side edge are rounded, respectively. The shape of the base 100 is coupled to the vertical part 200 , and may be provided in any shape in which the main wheel 110 and the sub wheel 120 can be rotatably coupled.

Each corner of the base 100 may be formed to be chamfered or rounded. Accordingly, the user is not injured by the edge of the base 100 .

The vertical portion 200 is coupled to one side of the base 100 facing the vertical portion 200, and to the rear side of the upper side in the illustrated embodiment.

The main wheel 110 is rotatably coupled to the other side of the base 100 opposite to the vertical portion 200, and to the rear side of the lower side in the illustrated embodiment. In addition, the sub wheel 120 is rotatably coupled to the other side of the base 100, the lower front side in the illustrated embodiment.

The base 100 includes a main wheel 110 and a sub wheel 120 .

The main wheel 110 is rotatably coupled to the rear of the lower side of the base 100 . The main wheel 110 supports the cart unit 10 from the rear side.

In an embodiment, the main wheel 110 may be connected to a motor member (not shown). The motor member (not shown) may be rotated according to a control signal input by the user or the direction and strength of a force that the user pushes or pulls the handle unit 300 . The motor member (not shown) may be rotated according to a situation in which the cart unit 10 is running.

Specifically, when the cart unit 10 travels uphill, the motor member (not shown) may be operated to rotate the main wheel 110 in a direction toward the front side. In addition, when the cart unit 10 travels downhill, the motor member (not shown) may be operated to rotate the main wheel 110 in a direction toward the rear side.

Accordingly, the strength of the force required for the user to drive the cart unit 10 can be reduced. Furthermore, a safety accident that may occur as the cart unit 10 is arbitrarily driven can be prevented.

A plurality of main wheels 110 may be provided. In the illustrated embodiment, the main wheel 110 includes a pair of main wheels 110 disposed to face each other.

The main wheel 110 provides power for the cart unit 10 to run. Accordingly, the main wheel 110 may be referred to as a “power wheel”.

The sub wheel 120 is rotatably coupled to the front of the lower side of the base 100 . The sub wheel 120 supports the cart unit 10 from the front side.

A plurality of sub wheels 120 may be provided. In the illustrated embodiment, the sub-wheel 120 includes a pair of sub-wheels 120 disposed to face each other.

The sub wheel 120 may be rotated in a horizontal direction with respect to the base 100 , that is, in a left and right direction. Accordingly, the user may adjust the direction of the sub wheel 120 to adjust the running direction of the cart unit 10 . Accordingly, the sub wheel 120 may be referred to as a “steering wheel”.

The vertical part 200 forms a skeleton in the vertical direction of the cart part 10 . The vertical portion 200 extends in a direction toward the ground and a direction away from the ground, that is, in the vertical direction in the illustrated embodiment.

The vertical portion 200 may extend in the vertical direction while forming a predetermined inclination with respect to the ground. In one embodiment, the vertical portion 200 may extend obliquely toward the rear side in the direction in which the guardian grips the handle portion 300 , in the illustrated embodiment.

Accordingly, the vertical portion 200 is inclined toward the protector, the user's convenience can be improved.

The vertical portion 200 may be formed in a polygonal prism shape having a predetermined thickness. In the illustrated embodiment, the vertical portion 200 is formed in a rectangular prism shape having a cross-section in which the length in the front-rear direction is longer than the length in the left-right direction.

Each corner of the vertical portion 200 may be chamfered or rounded. Accordingly, the user is not injured by the vertical portion 200 .

One side of the vertical portion 200 facing the ground, the base 100 is coupled to the lower side in the illustrated embodiment.

In the cart unit 10 according to an embodiment of the present invention, the vertical portion 200 may be folded toward the base 100 . Accordingly, when the cart unit 10 is to be stored, the space occupied by the cart unit 10 can be minimized. A detailed description thereof will be provided later.

The other side of the vertical part 200 opposite to the ground, the handle part 300 is coupled to the upper side in the illustrated embodiment. In one embodiment, the handle part 300 may be rotatably coupled to the vertical part 200 .

Accordingly, the handle unit 300 may be rotated according to the user's various body types and adjusted to an angle that is most easily gripped by the user.

The seat support unit 210 is a portion in which the seat unit 20 is detachably coupled to the cart unit 10 . The seat support part 210 supports the seat part 20 from the lower side.

The seat support 210 is electrically connected to the seat 20 . The seat part 20 seated on the seat support part 210 may conduct electricity with the cart part 10 .

The seat support unit 210 is energably connected to a battery (not shown) provided in the cart unit 10 . The connection may be formed by a conducting wire member (not shown) or the like.

Accordingly, power supplied by the battery (not shown) may be transmitted to the seat unit 20 through the seat support unit 210 .

The seat support 210 is located on one side of the vertical portion 200 opposite to the handle portion 300 , in the illustrated embodiment, on the front side. That is, the seat part 20 seated on the seat support part 210 may be located on the front side of the user who operates the cart part 10 .

Accordingly, the user may operate the cart unit 10 while recognizing the state of the infant accommodated in the seat unit 20 .

The seat support 210 is coupled to the vertical portion 200 by a coupling member (not shown). In an embodiment not shown, the coupling member (not shown) may be rotated in a direction toward the vertical portion 200 .

Accordingly, the seat support 210 may also be rotated toward the vertical portion 200 . As a result, when the cart unit 10 is to be stored, the space occupied by the cart unit 10 can be reduced.

The seat support 210 may be formed of a light-weight and high-rigidity material. In one embodiment, the sheet support 210 may be formed of reinforced plastic.

The seat support part 210 may be provided in any shape capable of stably supporting the seated seat part 20 . In the illustrated embodiment, the seat support 210 is formed as a part of a spherical surface, which is convex downwardly.

This is due to the lower side of the seat portion 20 seated on the seat support portion 210 is formed in a spherical shape. That is, the shape of the sheet support 210 may be changed according to the shape of the lower side of the sheet 20 .

The handle unit 300 is a part gripped by the user to drive the cart unit 10 . The user may move the cart unit 10 forward or backward by pushing or pulling the handle unit 300 .

The handle part 300 is positioned on the vertical part 200 . Specifically, the handle part 300 is located on one side of the vertical part 200 opposite to the base 100 , and on the upper side in the illustrated embodiment.

The handle part 300 may be rotatably coupled to the vertical part 200 . Accordingly, the user can easily hold the handle unit 300 by rotating it according to the height. In addition, when the cart unit 10 is to be stored, the volume of the cart unit 10 may be reduced by rotating the handle unit 300 toward the front side of the vertical unit 200 .

At one position of the vertical part 200 positioned between the base 100 and the handle part 300 , a lifting part (not shown) connected to the seat support part 210 is through-coupled.

The lifting unit may be moved in a direction toward the handle unit 300 or in a direction away from the handle unit 300 in a state coupled to the vertical unit 200 . In other words, the lifting unit may be moved in the vertical direction while being coupled to the vertical unit 200 .

Accordingly, the user may adjust the height of the seat unit 20 by adjusting the height of the lifting unit.

3. Description of the folding unit 400 according to an embodiment of the present invention

The cart unit 10 according to an embodiment of the present invention includes a folding unit 400 . The folding part 400 is respectively connected to the vertical part 200 and the base 100 . The folding part 400 may be rotated in a direction toward the base 100 or in a direction away from the base 100 .

Accordingly, the vertical part 200 connected to the folding part 400 may also be folded in a direction toward the base 100 . In addition, the vertical portion 200 in the folded state may be unfolded in a direction opposite to the base 100 .

At this time, the folding unit 400 may be folded by performing at least two steps. That is, the folding unit 400 is not folded by a single step. Accordingly, even when the user mismanages the folding unit 400 or the folding unit 400 malfunctions, the folding unit 400 is folded only when at least two steps are performed.

Accordingly, the safety of the infant seated on the seat unit 20 can be ensured.

Hereinafter, the folding unit 400 according to an embodiment of the present invention will be described in detail with reference to FIGS. 2 to 3 .

In the illustrated embodiment, the folding unit 400 includes a manipulation unit 410 , a rotating rod 420 , a rotating gear unit 430 , a rotating shaft 440 , an outer housing 450 , a base coupling unit 460 , and a wiring unit. 470 and a motor 480 .

(1) Description of the operation unit 410

The manipulation unit 410 is operated by a user to perform a first step for operating the folding unit 400 . The manipulation unit 410 is movably coupled to the vertical unit 200 in the vertical direction.

Specifically, the operation unit 410 may be slidably moved between the upper and lower sides of the portion where the vertical portion 200 and the base coupling portion 460 are connected.

As the manipulation unit 410 is pressed and moved downward, the stopper coupling hole (not shown) formed in the manipulation unit 410 is also moved downward. Accordingly, a plurality of stopper coupling holes (not shown) are sequentially coupled to the stopper 464 at different positions, and the restraint on the rotating rod 420 may be released. Accordingly, the rotating rod 420 may be rotated with respect to the base 100 .

The manipulation unit 410 may be formed of a light-weight and high-rigidity material. In one embodiment, the manipulation unit 410 may be formed of reinforced plastic.

A stopper coupling hole (not shown) is recessed inside the operation unit 410 . Specifically, the stopper coupling hole (not shown) is recessed in the inner surface surrounding the hollow portion 413 formed in the inside of the manipulation unit 410 .

A plurality of stopper coupling holes (not shown) may be formed. A plurality of stopper coupling holes (not shown) may be disposed to be spaced apart from each other in the vertical direction. Accordingly, when the manipulation unit 410 is moved to the lower side, the stopper 464 is sequentially accommodated in the first stopper coupling hole (not shown) positioned at the lower side and the second stopper coupling hole (not shown) positioned at the upper side. .

A stopper 464 may be inserted or withdrawn into the stopper coupling hole (not shown). When the stopper 464 is inserted into the stopper coupling hole (not shown), the operation unit 410 does not move arbitrarily unless an external force is applied.

The manipulation unit 410 is coupled to the outer housing 450 . Specifically, the outer housing 450 is coupled through the inside of the manipulation unit 410 . The manipulation unit 410 may be moved in a vertical direction while being coupled to the outer housing 450 .

In the illustrated embodiment, the manipulation unit 410 includes an outer peripheral portion 411 , a pressing portion 412 and a hollow portion 413 .

The outer peripheral part 411 forms the outer shape of the operation part 410 . The outer peripheral portion 411 is a portion to which the manipulation unit 410 is exposed to the outside. The shape of the outer peripheral portion 411 may be determined according to the shapes of the vertical portion 200 and the outer housing 450 .

That is, in the illustrated embodiment, the vertical portion 200 and the outer housing 450 have a length in the left-right direction shorter than a length in the front-rear direction, and have a rod shape extending in the vertical direction. Accordingly, the outer peripheral portion 411 may also have a length in the left-right direction shorter than the length in the front-rear direction, and may be formed in a columnar shape extending in the vertical direction.

On one side of the outer periphery 411, a pressing portion 412 is formed to protrude from the rear side in the illustrated embodiment.

The pressing unit 412 is a part in which the user presses and manipulates the operation unit 410 using a hand or foot. The pressing portion 412 is formed to protrude by a predetermined length from one side of the outer peripheral portion 411, the rear side in the illustrated embodiment. In other words, the pressing part 412 is formed to protrude in the direction in which the protector who operates the cart part 10 is located.

Accordingly, the guardian can easily press the manipulation unit 410 at a position in which the cart unit 10 is driven without changing the position of the guardian.

In an embodiment, the pressing unit 412 may be integrally formed with the manipulation unit 410 .

The hollow part 413 is a space formed inside the manipulation unit 410 . An outer housing 450 is inserted and coupled to the hollow portion 413 .

The hollow part 413 is formed through the extending direction of the manipulation unit 410 . In the illustrated embodiment, the hollow portion 413 is formed through the inside of the manipulation unit 410 in the vertical direction. The hollow portion 413 is partially surrounded by the inner surface of the outer peripheral portion 411 .

As described above, a plurality of stopper coupling holes (not shown) may be recessed in the inner surface surrounding the hollow portion 413 . The stopper coupling hole (not shown) may be formed in a pair of inner surfaces facing each other, respectively, in the left and right directions in the illustrated embodiment.

(2) Description of the rotating rod 420

The rotating rod 420 is accommodated in the vertical portion 200 , and rotates together with the vertical portion 200 . The rotation rod 420 may be gear-coupled to the rotation gear unit 430 . That is, the rotation rod 420 may be rotated only when the rotation gear unit 430 is rotated.

The rotating rod 420 is accommodated in the inner space of the vertical portion 200 . The rotating rod 420 may be fixedly coupled to the inner space of the vertical part 200 . For this, a separate fastening member (not shown) may be provided.

The rotating rod 420 may extend in the same direction as the vertical portion 200 . In the illustrated embodiment, the rotation rod 420 is formed to extend obliquely in the vertical direction in accordance with the extending direction of the vertical portion (200). The rotating rod 420 may be formed of a high-rigidity material. This is to prevent damage by rotation of the vertical part 200 .

One side of the rotating rod 420 facing the base 100, the lower end in the illustrated embodiment may be partially accommodated in the inner space of the base coupling portion (460). The lower end of the rotary rod 420 has a rotary shaft 440 that is an axis on which the rotary rod 420, the vertical part 200 and the first rotary gear 430a are rotated with respect to the base coupling part 460 may be coupled through. have.

The lower end of the rotating rod 420 may be rounded. In the illustrated embodiment, the lower end of the rotary rod 420 is formed to be rounded in the direction toward the base coupling portion 460, that is, convex toward the lower side.

Accordingly, even when the rotation rod 420 is rotated, the longest distance between the lower end of the rotation rod 420 and the other member may be maintained the same. As a result, the rotating rod 420 can be rotated smoothly without being interfered with by other members.

In the illustrated embodiment, the rotation rod 420 includes a pin insertion hole 421 and a gear insertion portion 422 .

A rotation shaft 440 is rotatably coupled to the pin insertion hole 421 . That is, the rotation rod 420 is rotatably coupled to the rotation shaft 440 through the pin insertion hole 421 .

The pin insertion hole 421 is formed through the rotation rod 420 in both directions, in the illustrated embodiment, in the left and right directions. In the illustrated embodiment, the pin insertion hole 421 has a circular cross section and is formed as a hollow extending in the left and right directions. The shape of the pin insertion hole 421 may be changed according to the shape of the rotation shaft 440 .

The pin insertion hole 421 is spaced apart from the lower end of the rotation rod 420 by a predetermined distance.

The pin insertion hole 421 may communicate with the gear insertion part 422 . Accordingly, the first rotation gear 430a inserted into the gear insertion part 422 may be rotatably coupled to the rotation shaft 440 through-coupled to the pin insertion hole 421 .

The first rotation gear 430a of the rotation gear unit 430 is rotatably inserted into the gear insertion unit 422 . The first rotation gear 430a may be stopped or rotated while being inserted into the gear insertion part 422 .

The gear insert 422 is recessed at the lower end of the rotation rod 420 . Specifically, as shown in FIG. 2 , the gear insert 422 is recessed toward the upper side between the left and right sides.

As shown in FIG. 3 , the gear insert 422 may be formed to have a disk shape. The shape of the gear insertion part 422 may be changed according to the shape of the first rotation gear 430a.

Although not shown, teeth (not shown) may be formed on the inner surface of the rotation rod 420 surrounding the gear insertion portion 422 from the upper side. The teeth (not shown) may be gear-fitted to the first rotation gear 430a. Accordingly, when the first rotation gear 430a is rotated, the rotation rod 420 may be rotated.

A detailed description of a process in which the rotating rod 420 is rotated according to the rotation of the rotating gear unit 430 will be described later.

(3) Description of the rotation gear unit 430

The rotation gear unit 430 is rotated or stopped according to the operation of the motor 480 . As the rotation gear unit 430 rotates, the rotation gear unit 430 and the gear-coupled rotation rod 420 may rotate. Accordingly, the vertical portion 200 accommodating the rotating rod 420 may also be rotated.

The rotation gear unit 430 is rotatably coupled to the base coupling unit 460 . The rotation gear unit 430 may be rotated in a state coupled to the base coupling unit 460 .

The rotation gear unit 430 includes a plurality of rotation gears. In the illustrated embodiment, the rotation gear unit 430 is provided with a total of five, including the first to fifth rotation gear (430a, 430b, 430c, 430d, 430e). The number of rotation gear units 430 may be changed according to the shape of the cart unit 10 .

The plurality of rotation gears 430a, 430b, 430c, 430d, and 430e are gear-coupled to each other. In the illustrated embodiment, the first rotation gear 430a is gear-coupled with the teeth (not shown) formed on the rotation rod 420 . In addition, the fifth rotation gear 430e is coupled to the motor 480 to receive the rotational force of the motor 480 .

In an embodiment, the fifth rotation gear 430e may be gear-coupled or pulley-fitted with the motor 480 .

The plurality of rotation gears 430a, 430b, 430c, 430d, and 430e may be disposed in the vertical direction. In the illustrated embodiment, the first rotation gear 430a is positioned at the uppermost side and is gear-coupled with the rotation rod 420 . The second rotation gear 430b, the third rotation gear 430c, and the fourth rotation gear 430d are sequentially disposed below the first rotation gear 430a. The fifth rotation gear 430e is disposed at the lowermost side and is coupled to the motor 480 .

The first to fifth rotation gears 430a, 430b, 430c, 430d, and 430e are different in arrangement method, but have the same structure. Accordingly, in the following description, the first to fifth rotation gears 430a, 430b, 430c, 430d, and 430e will be collectively referred to as “rotation gear unit 430”.

In the illustrated embodiment, the rotation gear unit 430 includes a first tooth portion 431 , a second tooth portion 432 , a wiring receiving portion 9433 , and a rotation shaft coupling portion 434 .

The first tooth portion 431 and the second tooth portion 432 are a portion in which the rotation gear portion 430 is gear-coupled to another rotation gear portion 430 , the rotation rod 420 or the motor 480 . The first teeth 431 and the second teeth 432 each include alternatingly continuous protrusions and depressions. That is, the first teeth 431 and the second teeth 432 are formed in the form of concavities and convexities.

The first tooth 431 and the second tooth 432 are disposed to face each other. In the illustrated embodiment, the first teeth 431 and the second teeth 432 are spaced apart from each other in the left-right direction and disposed to face each other.

A predetermined space is formed between the first tooth 431 and the second tooth 432 . A wiring member 471 is accommodated in the space. Accordingly, the space may be referred to as a wiring passing portion 433 .

The rotation shaft coupling part 434 is formed through one direction of the rotation gear part 430 in the left and right directions in the illustrated embodiment. The rotating shaft 440 is rotatably coupled through the rotating shaft coupling portion 434 . By the coupling, the rotation gear unit 430 may be rotatably coupled to the base coupling unit 460 .

In the illustrated embodiment, the rotation shaft coupling portion 434 has a cylindrical shape having a circular cross section, but the shape may be changed according to the shape of the rotation shaft 440 .

(4) Description of the rotating shaft 440

The rotating shaft 440 rotatably couples the rotating gear unit 430 to the base coupling unit 460 . In addition, the rotation shaft 440 rotatably couples the rotation gear unit 430 and the rotation rod 420 .

A plurality of rotation shafts 440 may be provided. In the illustrated embodiment, five rotation shafts 440 are provided, respectively, and are coupled through each rotation shaft coupling portion 434 of each rotation gear 430a, 430b, 430c, 430d, 430e. The number of rotation shafts 440 may be changed according to the number of rotation gear units 430 .

Among the plurality of rotation shafts 440 , the rotation shaft 440 positioned at the uppermost side, that is, the rotation shaft 440 to which the rotation rod 420 is coupled may have a larger diameter than other rotation shafts 440 .

This is due to the fact that the rotating shaft 440 should rotatably support not only the rotating gear unit 430 but also the rotating rod 420 .

(5) Description of the outer housing 450

The outer housing 450 surrounds the base coupling portion 460 from the outside. Specifically, the base coupling part 460 is inserted through the accommodating part 452 which is a space formed inside the outer housing 450 .

Accordingly, the base coupling portion 460 is not exposed to the outside. As a result, the outer appearance of the cart unit 10 may be beautiful.

For stable coupling between the outer housing 450 and the base coupling part 460 , a separate fastening member (not shown) may be provided.

The outer housing 450 is coupled to the manipulation unit 410 . Specifically, the outer housing 450 is inserted through the hollow portion 413 that is a space formed inside the operation unit 410 .

The operation unit 410 may be slidably moved in the vertical direction of the outer housing 450 .

The outer housing 450 is rotatably coupled to the rotation rod 420 . Specifically, the rotation shaft 440 is rotatably through-coupled to the shaft coupling portion 451 positioned on the upper side of the outer housing 450 . Also, the rotation shaft 440 is rotatably coupled through the pin insertion hole 421 of the rotation rod 420 .

Accordingly, the rotating rod 420 may be rotated about the rotating shaft 440 .

The outer housing 450 may be formed of a light-weight and high-rigidity material. In one embodiment, the outer housing 450 may be formed of reinforced plastic.

In the illustrated embodiment, the outer housing 450 includes a shaft coupling portion 451 , a receiving portion 452 , and a stopper coupling portion 453 .

A rotating shaft 440 is rotatably coupled to the shaft coupling portion 451 . The shaft coupling portion 451 may be disposed to have the same central axis as the pin insertion hole 421 of the rotary rod 420 . In addition, the shaft coupling portion 451 may be disposed to have the same central axis as the rotation shaft coupling portion 434 of the first rotation gear 430a. The shaft coupling portion 451 is located above the outer housing 450 .

Among the upper ends of the outer housing 450 , the frame may be formed in a direction other than the direction in which the rotation rod 420 is rotated. A rotation direction of the rotation rod 420 may be limited by the frame.

The receiving part 452 is a space formed inside the outer housing 450 . A base coupling part 460 is coupled through the receiving part 452 .

The accommodating part 452 is formed to extend in the extending direction of the outer housing 450 inside the outer housing 450 . In the illustrated embodiment, the accommodating part 452 extends in the vertical direction like the outer housing 450 .

The receiving portion 452 communicates with the stopper coupling portion 453 . The stopper 464 coupled to the base coupling part 460 may be exposed to the outside of the outer housing 450 through the stopper coupling part 453 .

The stopper coupling portion 453 accommodates the stopper 464 . The stopper 464 may be moved outside, that is, in a direction opposite to the base coupling part 460 and toward the base coupling part 460 while being inserted into the stopper coupling part 453 .

When the stopper 464 is moved in a direction opposite to the base coupling unit 460 , the stopper 464 may be inserted into any one of a plurality of stopper insertion holes (not shown) formed in the manipulation unit 410 .

When the stopper 464 is moved in a direction toward the base coupling part 460 , the stopper 464 may be accommodated in the stopper coupling part 453 , and may be located inside the outer surface of the outer housing 450 .

The movement of the stopper 464 may be achieved by the vertical movement of the manipulation unit 410 . A detailed description thereof will be provided later.

(6) Description of the base coupling part 460

The base coupling part 460 is a part where the folding part 400 is coupled to the base 100 . The base coupling part 460 forms a lower side of the folding part 400 .

The base coupling part 460 is fixedly coupled to the outer housing 450 . Specifically, the base coupling portion 460 is coupled through the receiving portion 452 of the outer housing 450 . A separate fastening member (not shown) may be provided for stable coupling between the base coupling part 460 and the outer housing 450 .

The lower side of the base coupling part 460 is fixedly coupled to the base 100 . Specifically, the base coupling part 460 is coupled to the upper side of the rear of the base 100 . A fastening member (not shown) may be provided for coupling the base coupling part 460 and the base 100 .

The base coupling part 460 may be formed of a light-weight and high-rigidity material. In an embodiment, the base coupling part 460 may be formed of reinforced plastic.

In the illustrated embodiment, the base coupling part 460 includes a gear accommodating part 461 , a wiring accommodating part 462 , a motor accommodating part 463 , and a stopper 464 .

The gear receiving part 461 is a space formed inside the base coupling part 460 . In the illustrated embodiment, the gear receiving part 461 is formed by being depressed from the left or right side of the base coupling part 460 .

The rotation gear unit 430 is accommodated in the gear receiving unit 461 . The rotating gear unit 430 may be rotated by the rotation of the motor 480 in a state accommodated in the gear receiving unit 461 . In the illustrated embodiment, the rotation gear unit 430 may be rotated clockwise or counterclockwise.

The gear accommodating part 461 communicates with the motor accommodating part 463 . Any one of the rotation gear units 430 accommodated in the gear receiving portion 461, the fifth rotation gear 430e located at the lowermost side in the illustrated embodiment is coupled with the motor 480 accommodated in the motor receiving portion 463. can be

The gear receiving part 461 communicates with the internal space of the vertical part 200 . The other one of the rotation gear parts 430 accommodated in the gear receiving part 461, the first rotation gear 430a positioned at the uppermost side in the illustrated embodiment is the rotation rod 420 accommodated in the vertical part 200 . can be gear-coupled with

The gear receiving part 461 may extend in the same direction as the base coupling part 460 . In the illustrated embodiment, the gear receiving portion 461 is formed to extend in the vertical direction.

The wiring accommodating part 462 is a space formed inside the base coupling part 460 . In the illustrated embodiment, the wiring accommodating part 462 is formed by being depressed from the left or right side of the base coupling part 460 .

A wiring member 471 is accommodated in the wiring accommodating portion 462 . The wiring member 471 may extend toward the vertical portion 200 through the wiring receiving portion 462 .

The wiring accommodating part 462 communicates with the motor accommodating part 463 . The external wiring member 471 may extend into the base coupling part 460 through the motor accommodating part 463 .

The wiring accommodating part 462 communicates with the gear accommodating part 461 . The wiring member 471 may extend toward the vertical portion 200 through the wiring passage portion 433 of the rotation gear unit 430 accommodated in the gear receiving portion 461 .

In the illustrated embodiment, the wire receiving portion 462 is located on the rear side of the gear receiving portion 461 . The wiring accommodating part 462 may be formed at any position where the external wiring member 471 may extend toward the vertical part 200 through the inside of the base coupling part 460 .

The motor accommodating part 463 is a space formed inside the base coupling part 460 . In the illustrated embodiment, the motor receiving part 463 is located below the base coupling part 460 . The motor 480 is accommodated in the motor accommodating part 463 .

The motor accommodating part 463 communicates with the outside. The motor 480 accommodated in the motor accommodating part 463 may receive power from the outside. In an embodiment, the motor 480 may receive power through the wiring member 471 .

The motor accommodating part 463 communicates with the gear accommodating part 461 . The motor 480 accommodated in the motor accommodating part 463 may be coupled to the rotating gear part 430 accommodated in the gear accommodating part 461 . Accordingly, when the motor 480 is operated, the rotation gear unit 430 may also be operated.

In the illustrated embodiment, openings are formed on the front side and the lower side of the motor receiving part 463 . The motor accommodating part 463 may communicate with the outside through the opening.

(7) Description of the wiring unit 470

The wiring unit 470 connects the outside and the inside of the cart unit 10 to be energized. In addition, the wiring unit 470 connects the cart unit 10 and the seat unit 20 coupled thereto to be energized.

In one embodiment, the cart unit 10 may be provided with a battery (not shown). In the above embodiment, the wiring unit 470 may connect a battery (not shown) and various components provided in the cart unit 10 and the seat unit 20 to be energized.

Accordingly, power for operating the smart stroller 1 may be supplied.

The wiring unit 470 includes a wiring member 471 .

The wiring member 471 electrically connects each component of the cart unit 10 and the seat unit 20 with a battery (not shown) or an external power source provided in the cart unit 10 .

In an embodiment, a battery (not shown) may be located below the base 100 . Accordingly, one end of the wiring member 471 may extend to the lower side of the base 100 .

The wiring member 471 may extend from the battery (not shown) toward the vertical portion 200 . The wiring member 471 may be accommodated in the base coupling part 460 . Specifically, the wiring member 471 may be accommodated in the wiring accommodating part 462 and extend toward the vertical part 200 .

When the rotating rod 420 is rotated, the wiring member 471 connected to the vertical part 200 may also be rotated. To this end, the wiring member 471 may be formed of a flexible material.

In this case, in order to prevent damage to the wiring member 471 and twisting or tangling caused by the extension of the wiring member 471 , the degree of tension of the wiring member 471 may be changed.

That is, as will be described later, in a state in which the rotation rod 420 is not rotated, a portion of the wiring member 471 adjacent to the fifth rotation gear 430e may loosely extend.

As the rotation of the rotation rod 420 proceeds, the upper side of the wiring member 471, that is, the portion adjacent to the first rotation gear 430a is gradually pulled.

In this case, the one portion, ie, the loose portion, of the wiring member 471 is pulled taut, and twisting or tangling of the wiring member 471 may be prevented.

(8) Description of the motor 480

The motor 480 generates power for rotating the rotating gear unit 430 to rotate the rotating rod 420 . The power generated by the motor 480 is transmitted to the rotating rod 420 through the rotating gear unit 430 .

Accordingly, the rotation rod 420 is rotated, and the vertical portion 200 for accommodating it can be folded toward the base 100 .

The motor 480 may be provided in any form capable of receiving power and rotating according to an input control signal. In an embodiment, the motor 480 may be provided as an electric motor or the like.

The motor 480 is coupled to the rotation gear unit 430 . Specifically, the motor 480 is gear-coupled or pulley-coupled with the fifth rotation gear 430e located at the lowermost side. The motor 480 and the fifth rotation gear 430e may be coupled in any form capable of transmitting rotational force.

The motor 480 may receive power from a battery (not shown). To this end, the motor 480 may be electrically connected to a battery (not shown) by a wiring member 471 or a separate conductive wire member (not shown).

The motor 480 may receive a control signal from an input device (not shown). To this end, the motor 480 may be electrically connected to an input device (not shown) in a wired or wireless manner.

In an embodiment in which the motor 480 receives a control signal in a wired manner, the motor 480 may be electrically connected to an input device (not shown) by a wiring member 471 or a separate conductive wire member (not shown). can

In an embodiment in which the motor 480 receives a control signal in a wireless manner, the motor 480 may be electrically connected to an input device (not shown) in the form of Bluetooth or Wi-Fi.

4. Description of the folding process of the cart unit 10 according to an embodiment of the present invention

In the cart unit 10 according to an embodiment of the present invention, the vertical portion 200 may be folded toward the base 100 . Accordingly, when the smart stroller 1 is stored, the space occupied is reduced, thereby reducing user convenience.

In addition, in one embodiment, the seat portion 20 may be detachably coupled to the cart (10). At this time, if the vertical portion 200 is arbitrarily folded toward the base 100, it is difficult to ensure the safety of the infant seated on the seat portion (20).

Accordingly, in the cart part 10 according to an embodiment of the present invention, the vertical part 200 can be folded toward the base 100, and the vertical part 200 can be rotated only when the guardian performs a plurality of steps. do.

Accordingly, the safety of the infant seated on the seat unit 20 can be ensured while the convenience of the guardian is improved.

Furthermore, a part of the process may be automatically performed according to a control signal input by the guardian. That is, the guardian can fold the vertical portion 200 only by applying a control signal.

Hereinafter, a process in which the vertical part 200 of the cart part 10 according to an embodiment of the present invention is folded will be described in detail with reference to FIGS. 4 to 10 .

4 to 7 , a change in the structure of the folding part 400 is shown in the process of folding the cart part 10 according to an embodiment of the present invention.

Referring to FIG. 4 , the manipulation unit 410 is coupled to both the vertical unit 200 and the outer housing 450 . Accordingly, in the state shown in FIG. 4 , the vertical portion 200 and the rotating rod 420 are not arbitrarily rotated.

At this time, the stopper 464 is inserted into the stopper insertion hole (not shown) of the operation unit 410 is coupled. Specifically, the stopper 464 is inserted into the first stopper insertion hole (not shown) that is located relatively lower among the plurality of stopper insertion holes (not shown).

Accordingly, unless a separate external force is applied, the manipulation unit 410 is not arbitrarily lifted up and down in the vertical direction.

When the guardian presses the pressing part 412 using a foot or the like, the stopper 464 is moved to the inside of the outer housing 450 and is withdrawn from the first stopper insertion hole (not shown). Accordingly, the manipulation unit 410 may be moved downward.

Referring to FIG. 5 , the manipulation unit 410 is lowered downward and is coupled only to the outer housing 450 .

As the guardian presses the pressing unit 412 , the manipulation unit 410 is moved downward. Accordingly, the stopper 464 is inserted into the second stopper insertion hole (not shown) located at the relatively upper side among the plurality of stopper insertion holes (not shown).

Referring to FIG. 6 , a control signal is applied to the motor 480 through an input device (not shown). Accordingly, the motor 480 starts to rotate.

As described above, the motor 480 is coupled to the rotation gear unit 430 , specifically, the fifth rotation gear 430e. Accordingly, the rotation of the motor 480 is transmitted to the fifth rotation gear (430e).

A plurality of rotation gears 430a, 430b, 430c, 430d, and 430e constituting the rotation gear unit 430 are gear-coupled to each other. Accordingly, the rotational force transmitted to the fifth rotational gear 430e is transmitted to the first rotational gear 430a through each of the rotational gears 430b, 430c, and 430d.

The first rotation gear 430a is accommodated in the gear insert 422 , and is gear-coupled to the rotation rod 420 . Accordingly, when the first rotation gear 430a is rotated, the rotation rod 420 is also rotated.

In the illustrated embodiment, the rotation gear unit 430 includes five rotation gears 430a, 430b, 430c, 430d, and 430e. Accordingly, the first, third, and fifth rotation gears 430a, 430c, and 430e rotate in a counterclockwise direction, and the second and fourth rotation gears 430b and 430d rotate in a clockwise direction.

Accordingly, the rotating rod 420 is rotated in a counterclockwise direction, that is, in a direction toward the base 100 .

The rotation direction of each rotation gear and the rotation direction of the rotation rod 420 may be changed according to the number of rotation gears constituting the rotation gear unit 430 .

Referring to FIG. 7 , a state in which the rotation of the rotating rod 420 is completed is started. The rotation angle of the rotation rod 420 may be limited by the frame of the front side in the illustrated embodiment, one side of the outer housing 450 or the base coupling portion 460 opposite to the pressing portion 412 .

In the illustrated embodiment, the rotating rod 420 is shown to be rotated until it is parallel to the base 100 . Alternatively, the rotating rod 420 may be rotated until it forms an acute angle with the base 100 .

8 to 10 , an example of the folding process of the vertical part 200 of the cart part 10 as viewed from the side of the cart part 10 according to an embodiment of the present invention is shown.

Referring to FIG. 8 , the manipulation unit 410 is positioned to be spaced apart from the base 100 . In the above state, it will be understood that the operation unit 410 is coupled to both the vertical portion 200 and the base coupling portion 460 , thereby limiting the rotation of the vertical portion 200 .

In addition, it will be understood that in the illustrated embodiment, the stopper 464 is inserted into the first stopper insertion hole (not shown) positioned at a relatively lower side.

Referring to FIG. 9 , a state in which the guardian presses the manipulation unit 410 is shown. The manipulation unit 410 is moved downward by the pressure. In the above state, it will be understood that the stopper 464 is inserted into the second stopper insertion hole (not shown) positioned at the relatively upper side.

Referring to FIG. 10 , a state in which the vertical portion 200 is folded counterclockwise toward the base 100 is shown.

It will be understood that the above state is a result of the motor 480 being rotated by a control signal applied through an input device (not shown), and the rotation gear unit 430 being rotated accordingly.

In this case, the rotation direction of the vertical part 200 is limited by the frames respectively formed on the rear side of the upper side of the outer housing 450 and the base coupling part 460 as described above.

In addition, as described above, the rotation angle of the vertical part 200 is limited by the frames respectively formed on the front side of the upper side of the outer housing 450 and the base coupling part 460 .

As the vertical portion 200 is folded toward the base 100 , the space occupied by the entire cart portion 10 is reduced. Accordingly, storage of the cart unit 10 and the smart stroller 1 may be facilitated.

Although not shown, it will be understood that when the guardian wants to re-open the vertical portion 200 (ie, to arrange it in a vertical position again), the above process is performed in reverse so that the purpose can be achieved. .

Although the above has been described with reference to the preferred embodiment of the present invention, those of ordinary skill in the art can variously modify and change the present invention within the scope without departing from the spirit and scope of the present invention described in the claims below. You will understand that you can.

1: Smart Stroller
10: cart
20: seat portion
100: base
110: main wheel
120: sub wheel
200: vertical
210: seat support
300: handle part
400: folding (folding) unit
410: control panel
411: outsider
412: press
413: hollow
420: rotating rod
421: pin insertion hole
422: gear insert
430: rotation gear unit
430a: first rotation gear
430b: second rotation gear
430c: third rotation gear
430d: fourth rotation gear
430e: fifth rotation gear
431: first tooth
432: second tooth
433: wiring passing part
434: rotation shaft coupling part
440: axis of rotation
450: outer housing
451: shaft coupling part
452: receptacle
453: stopper coupling portion
460: base coupling part
461: gear receiving unit
462: wiring receiving part
463: motor receiver
464: stopper
470: wiring unit
471: wiring member
480: motor

Claims (15)

Base;
a vertical portion coupled to the base and extending upwardly; and
It includes a folding (folding) portion coupled to the base and the vertical portion, respectively,
The folding part,
a base coupling part coupled to the base;
a rotation rod rotatably coupled to the base coupling portion and accommodated in the vertical portion; and
It is accommodated in the interior of the base coupling portion, comprising a rotation gear portion coupled to the rotation rod,
cart. According to claim 1,
The folding part,
Containing a motor accommodated in the base coupling portion, coupled to the rotating rod, and connected to an external power source to be energized,
cart. 3. The method of claim 2,
The rotation gear unit includes a plurality of rotation gears,
A plurality of rotating gears are gear-fitted to each other,
cart. 4. The method of claim 3,
Any one of the plurality of rotation gear is gear-coupled to the rotation rod,
the other of the plurality of rotation gears is coupled to the motor,
cart. 4. The method of claim 3,
The rotary gear unit,
a first rotation gear geared to the rotation rod;
a second rotation gear geared to the first rotation gear;
a third rotation gear geared to the second rotation gear;
a fourth rotation gear geared to the third rotation gear; and
Containing a fifth rotation gear each coupled to the fourth rotation gear and the motor,
cart. 4. The method of claim 3,
The rotating rod is
a gear insertion part which is a space for accommodating any one of the plurality of rotation gears; and
Surrounding the gear insertion portion, including a tooth formed on one surface facing the one of the rotation gear accommodated,
Any one of the rotation gears is gear-coupled to the teeth,
cart. 3. The method of claim 2,
Inside the base coupling part,
a gear accommodating part which is a space for accommodating the rotating gear part; and
It communicates with the gear accommodating part and includes a wiring accommodating part which is a space through which the wiring member passes,
The rotary gear unit,
and a wiring accommodating part that is a space through which the wiring member passes,
cart. 8. The method of claim 7,
The magnitude of the tension applied to the wiring member is,
Inversely proportional to the size of the angle between the vertical portion and the base,
cart. According to claim 1,
The folding part,
It is located on the outside of the base coupling part and includes a manipulation part coupled to the base coupling part to be able to ascend and descend in the vertical direction,
The operation unit,
Moving between a first position coupled to both the vertical portion and the base coupling portion and a second position coupled only to the base coupling portion,
cart. 10. The method of claim 9,
The operation unit,
a pressing portion protruding in one direction; and
It is provided with a plurality and includes a plurality of stopper insertion holes arranged to be spaced apart in the vertical direction,
The base coupling part,
A stopper that is movably coupled in a direction facing the manipulation unit and in a direction opposite to the manipulation unit, and is inserted into or withdrawn from any one of the plurality of stopper insertion holes,
cart. 11. The method of claim 10,
When the manipulation unit is located in the first position,
The stopper is inserted and coupled to the stopper insertion hole located at a relatively lower side of the plurality of stopper insertion holes,
When the manipulation unit is located in the second position,
The stopper is inserted into and coupled to the stopper insertion hole located at the relatively upper side of the plurality of stopper insertion holes,
cart. a seat portion having a space formed therein;
It includes a cart part to which the seat part is detachably coupled,
The cart unit,
a base formed in a plate shape;
a vertical portion connected to the base and extending upwardly of the base; and
It is positioned between the base and the vertical part, and includes a folding part connected to the base and the vertical part, respectively,
The folding part,
a base coupling part coupled to the base and extending toward the vertical part;
a rotation rod rotatably coupled to the base coupling portion and accommodated in the vertical portion;
a rotating gear unit accommodated in the base coupling unit and coupled to the rotating rod; and
Connected to the rotation gear unit, including a motor operated according to the applied control signal,
smart stroller. 13. The method of claim 12,
The rotary gear unit,
Containing a plurality of rotation gears geared to each other,
Any one of the plurality of rotation gear is coupled to the rotation rod,
the other of the plurality of rotation gears is coupled to the motor,
smart stroller. 14. The method of claim 13,
The rotating rod is
a gear insertion part which is recessed from one side facing the rotation gear part, the one of the plurality of rotation gears being accommodated; and
Surrounding the gear insertion portion on the other side opposite to the one side, it includes a toothed portion formed with a plurality of protrusions and depressions,
Any one of the plurality of rotation gears is gear-engaged with the teeth,
smart stroller. 14. The method of claim 13,
The rotary gear is
first teeth and second teeth spaced apart from each other and disposed to face each other; and
and a wiring accommodating portion formed between the first tooth and the second tooth to receive a wiring member that is electrically connected to the outside,
smart stroller.

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