KR20100013891A - Easy driving baby carriage in stairs and slope - Google Patents

Abstract

PURPOSE: A baby carriage with auxiliary wheels is provided to help an infant and a guardian feel safe and to remove the risk of falling accidents by keeping the infant horizontal even while traveling on a slope. CONSTITUTION: A main frame(110) forms a support structure with a combination of horizontal and vertical frames and comprises a handle part and a seat part. Outer pipes(120) are connected to both left and right sides of the main frame and are arranged vertically with regards to the direction being travelled. Curved moving bars(130) with wheels(140) on the front and rear ends are inserted in the outer pipes and slide back and forth. Auxiliary wheels(150) are attached to both ends of a mounting bar(152).

Description

EASY DRIVING BABY CARRIAGE IN STAIRS AND SLOPE}

The present invention relates to a baby carriage that is easy to run on slopes and stairs, and more particularly, even when the inclined surface is up and down so that the seated body of the infant can be always kept in a horizontal state to provide a sense of stability and safety accidents The present invention relates to a baby carriage that is easy to run on an inclined surface and a staircase that can block generation and can also be used to move up and down stairs.

In general, a baby carriage is used to push, drag and move an infant to reduce the fatigue caused when the infant is held or lifted up when going out.

The stroller is formed of four legs coupled to the frame, a traveling wheel provided on the lower side of each leg, and a seat portion formed on the upper side of the frame to accommodate the infant.

However, the conventional baby carriage has the following problems.

First, although the stroller is easy to move on a flat surface, there is a problem in that the function is poor, such as a step is impossible to run on a stepped ground or inclined ground, such as stairs, because the mounted driving wheel is in line contact with the ground.

In detail, when climbing up and down slopes such as stairs and hills, the center of the infant's body is severely tilted back and forth, causing anxiety to the infant and the caregiver, and accidentally causing the infant to fall.

Thus, the guardian is taking the inconvenience of moving the baby stroller and infant directly to the lifted state.

Second, there is a problem that the stroller can not repeatedly move up the stepped stairs at all.

In detail, it is very inconvenient in the stairs that the running wheels do not repeatedly hang on the vertical walls of the stairs, and thus the driver must move the stroller repeatedly.

The present invention has been devised to solve the above problems, and even when driving the inclined surface, the infant's body can be maintained at a stable level at all times without being leaned to one side, so that the infant and the guardian The object of the present invention is to provide a baby carriage that is easy to travel on slopes and stairs, which may feel stable, have no risk of falling accidents, and may be convenient for use.

In addition, the present invention is also capable of moving up and down the stairs, and an object of the present invention is to provide a baby carriage that is easy to run on an inclined surface and stairs, which can provide convenience in use in this respect as well.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention by those skilled in the art.

In order to achieve the above object, a baby carriage having easy running on an inclined surface and a staircase forms a support structure by a combination of vertical and horizontal frames, and a handle part is formed at an upper side of the vertical frame and an infant rides on an upper side. A main frame forming a seating portion; An outer tube which is provided in a state in which it is positioned along the driving direction and is coupled to both left and right sides of the main body frame and has an arc shape in a predetermined angle range; A curved moving bar having a rod shape having a predetermined angular range and slidingly moved forward and backward in a state of being inserted into the outer tube and coupled to be freely rotatable at both front and rear ends exposed to the outside; And an auxiliary wheel coupled to a rotation shaft of each of the driving wheels so as to be freely rotatable in the front and rear ends of the mounting bar, the center portion of which is freely rotatable in the vertical direction. It includes.

Preferably, the baby carriage easy to run the slope and the stairs of the present invention, the brake means for braking and releasing the forward and backward movement of the curved movement bar with respect to the outer tube; And a brake operation unit for operatively controlling the braking action of the brake means. It may further include.

Also preferably, in the baby carriage easy to run the inclined surface and the stairs of the present invention, the vertical frame may be provided to be inclined in a state lying down to the rear.

Also preferably, in the baby carriage easy to run the slope and the stairs of the present invention, the vertical frame may be provided so that the lower end is coupled to the central position along the front and rear direction of the outer tube.

Also preferably, the baby carriage easy to run the inclined surface and stairs of the present invention, the rolling ball is provided with a plurality of so arranged in the front and rear direction between the inner surface of the outer tube and the outer surface of the curved moving bar; It may further include.

Also preferably, in the baby carriage easy to run on the inclined surface and the stairs of the present invention, the traveling wheels and the auxiliary wheels on both the left and right sides have a Chinese character arm shape so as to be closer to each other at the upper end portion and to be spaced apart from each other at the lower end portion. It may be provided to achieve.

Also preferably, in the baby carriage easy to run on the slope and the stairs of the present invention, the curved moving bars on both the left and right sides are provided to form a Chinese character arm (8) shape so as to be closer to each other at the upper end portion and to be spaced apart from each other at the lower end portion. Can be.

According to the present invention, even when driving the inclined slope, regardless of the angle of the inclined surface, the seat plate portion in which the infant is able to achieve a horizontal state at all times, so that the body state of the infant can be kept stable and comfortable, The effect of providing stability and comfort to the infant, preventing the occurrence of a safety accident in which the infant falls, and providing a great convenience in use can be achieved.

In addition, according to the present invention, it is possible to easily move up the stairs, which has not been possible at all, so that it is possible to provide a great convenience in use, such as not having to enter and move directly when passing through the stairs. Can also be achieved.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a baby carriage easy to run on an inclined surface and stairs according to a preferred embodiment of the present invention, Figure 2 is a side cross-sectional view thereof.

The baby carriage 100 according to the present invention forms a supporting structure by the combination of the vertical and horizontal frames 110a and 110b, and a handle part 112 is formed on the upper side of the vertical frame 110a and the infant on the upper side thereof. The main body frame 110 is formed with a seat (s) to be boarded, and are coupled to each of the left and right sides of the main body frame 110 in a long position along the driving direction and made of an arc shape of a certain angle range and the inside An outer tube 120 having a through hole in the outer tube 120 and an arc-shaped rod having the same curvature as the outer tube 120 is freely slidably moved forward and backward in the state inserted into the outer tube 120 and exposed to the outside. The curved moving bar 130 is coupled to the driving wheel 140 to be freely rotatable at both ends, and the center portion is rotatably coupled to the rotation axis of each driving wheel 140 so as to be freely rotated in the vertical direction. To allow a free rotation in front and rear opposite ends of the mounting bar 152 is provided with a long and a secondary wheel 150 is provided with bonding.

In addition, the brake means 160 for selectively braking the front and rear movement of the curved movement bar 130 with respect to the outer tube 120, and the brake operation unit 170 that controls the braking action of the brake means 160 and is operated by the operator ) May be further included.

The body frame 110 forms an overall support structure through the combination of the vertical frame 110a, the horizontal frame 110b, and the connection frame 110c.

The vertical frame (110a) is provided in a vertical direction, the upper end side is formed with a handle portion 112 which is used to grip or push the operator.

Preferably, the vertical frame 110a is provided to be inclined to the rear to be inclined, and as shown in FIGS. 4 and 5, the angle of the inclined surface and the angle range of the corresponding vertical frame 110a when moving up or down an inclined surface or stairs. This is to ensure that the car is not too much, so that the driver's pushing or pulling attitude is natural and the vehicle can be operated even with a relatively small force.

In this regard, the bottom of the vertical frame (110a) may be provided to be coupled to the center position along the front and rear direction of the outer tube 120 in order to ensure that the vertical frame (110a) is smoothly laid slightly to the rear.

Thus, when the lower end of the vertical frame (110a) is coupled to the central position along the front and rear direction of the outer tube 120, as shown in Figure 5, the operator is relatively small force when moving up the upward sloped stairs In addition, smooth running can be performed.

The horizontal frame 110b is provided in the horizontal direction, and is formed of ones that are positioned along the front and rear direction and ones that extend along the left and right direction.

The connection frame 110c connects between the vertical frame 110a on both sides or the horizontal frame 110b on both sides.

Through the support structure of the main body frame 110, the upper side is formed with a seat (s) for the infant to be boarded, the seat (s) is a vertical seat to support the back of the infant and the horizontal seat plate on which the infant is seated It consists of a climbing part.

The seat plate on which the infant is seated may be formed by a supporting structure by the connecting frame 110c connecting the horizontal frame 110b and the horizontal frame 110b on both sides thereof, and the back plate supporting the back of the infant is a vertical frame. It may be formed by a supporting structure by the connecting frame (110c) for connecting between the (110a) and the vertical frame (110a) of both sides.

Preferably, the connecting frame 110c is provided with a hinge portion 110c-1 at an intermediate portion thereof, so that the left and right sides of the connecting frame 110c may be in close contact with each other by a pivoting action of the hinge portion 110c-1. By this, the stroller 100 according to the present invention can be folded, such a folding function to reduce the volume of the stroller 100 to facilitate storage and transport.

In the drawing, the connecting frame 110c is provided to form an X shape, and is illustrated by way of example as shown in FIG. 3.

The outer tube 120 is provided to be coupled to the left and right both sides of the main body frame 110 in a long position along the front and rear directions.

The outer tube 120 is formed in a gentle arc shape of a certain angle range, that is, a rainbow shape, a tube shape in which a through hole is formed therein.

The curved moving bar 130 has an arc shape having a curvature that is equal to or less than the outer tube 120, and has a longer length than the outer tube 120 to have a larger angular range than the outer tube 120.

The curved moving bar 130 is basically coupled to the middle portion thereof so as to be inserted into the outer tube 120, and when acting, the curved moving bar 130 is slid freely in the front and rear direction along the arc of the outer tube 120.

A plurality of rolling balls 122 to be arranged along the front and rear direction between the inner surface of the outer tube 120 and the outer surface of the curved moving bar 130 to reduce the friction during the sliding movement in the outer tube (120). It may be provided.

The rolling ball 122 may be embedded in the outer tube 120 to prevent the outflow through the adoption of the appropriate shape of the outer tube 120, and the like.

Running wheels 140 are coupled to both ends of the curved moving bar 130 before and after the outside of the curved moving bar 130, and the driving wheels 140 rotate while being freely rotated as the vehicle moves in contact with the ground.

Referring to the operation in the case of traveling on the inclined surface and stairs, first, when driving on a flat surface, there is no height difference between the front driving wheel 140 and the rear driving wheel 140, the outer tube 120 is a curved moving bar Located at the center of 130.

On the other hand, as shown in Figure 4, when driving down the slope inclined front driving wheel 140 is located at a lower level than the rear driving wheel 140, according to the curved moving bar 130 is the outer tube Since the outer tube 120 is positioned to be biased toward the rear side of the curved moving bar 130, the seat plate portion of the seat portion s may be kept horizontal regardless of the angle of the inclined surface. Can be.

On the other hand, as shown in Figure 5, when traveling up the inclined surface is the front driving wheel 140 is located at a higher position than the rear driving wheel 140, according to the curved moving bar 130 is the outer tube Since the outer tube 120 is positioned so as to be biased toward the front side of the curved moving bar 130, the seat plate portion of the seat portion s can be kept horizontal regardless of the angle of the inclined surface. have.

That is, the movement degree of the curved moving bar 130 with respect to the outer tube 120 is automatically changed to correspond to the inclination angle of the inclined surface, the seat plate on which the infant is to be always in a horizontal state.

Therefore, even when driving on any slope, the center of the infant's body may not be tilted back and forth at all, and the level may be kept as horizontal as when driving on a flat surface. Can also be prevented.

Furthermore, a pair of auxiliary wheels 150 are provided for each of the traveling wheels 140 provided at four positions front, rear, left, and right.

The auxiliary wheel 150 has a relatively smaller diameter than the driving wheel 140 and may be a caster wheel.

The auxiliary wheel 150 is rotatably coupled to the front and rear ends of the mounting bar 152 which is provided in the front and rear direction so that the center portion thereof can freely rotate in the vertical direction with respect to the rotation axis of the driving wheel 140. do.

The auxiliary wheel 150 provides a function to enable the baby carriage 100 according to the present invention to move up and down the stairs smoothly.

Referring to the operation, as shown in FIG. 5, when repeatedly moving up the stepped stairs, the front side auxiliary wheel 150 touches the vertical wall of the stairs before the traveling wheel 140 and then moves upward. By being moved downward or downward, the travel wheels 140 by the support according to the change in the position to easily climb the stepped height of the stairs to smoothly move up.

That is, when the front side auxiliary wheel 150 is moved upwards after touching the vertical wall of the stairs, the rear side auxiliary wheels 150 are moved downwards to support the horizontal wall of the stairs, so that the traveling wheels 140 are easily supported. It can be lifted to easily climb the stepped height of the stairs.

On the other hand, when the front side auxiliary wheel 150 is moved downward after touching the vertical wall of the staircase, the rear side auxiliary wheel 150 eventually touches and supports the horizontal wall of the stairs, so that the driving wheel 140 is easily lifted up. It is easy to climb the stepped height of the stairs.

The brake means 160 blocks or unblocks the forward and backward movement of the curved movement bar 130 with respect to the outer tube 120. The detailed configuration of the brake means 160 selectively moves the curved movement as the user operates the brake operation unit 170. The brake pad 160a may be in close contact with or spaced from the bar 130, and the brake cable 160b may connect the brake pad 160a and the brake manipulation unit 170.

The brake operation unit 170 is operated by a user and, as operated, turns on / off the braking action of the brake means 160.

The brake operation unit 170 may be provided to be coupled to the vicinity of the upper side handle 112 of the vertical frame (110a) so that the user can easily operate by hand.

The braking action will be described in detail. When the driver pulls the brake operation unit 170, the brake cable 160b is pulled so that the brake pad 160a comes into close contact with the curved movement bar 130, and thus, the curved movement bar 130 of the curved movement bar 130. When the forward and backward movement becomes impossible, on the other hand, when the operator releases the brake operation unit 170, the pulled brake cable 160b is returned to its original position, and the brake pad unit 160a is spaced apart from the curved movement bar 130 so that the movement of the curved movement bar 130 is performed. It is possible to move back and forth.

According to this, the operator brakes as needed at the time of traveling on an inclined surface or stairs, thereby making the seat plate part more horizontally more precisely, and more conveniently operating operation.

In addition, the driving wheels 140 on both the left and right sides may be provided to form a Chinese character arm so as to be closer to each other at the upper end and spaced apart from each other at the lower end. Due to the large amount of impact generated during driving, the baby carriage 100 may be more completely blocked from being rolled sideways.

Of course, even if the curved moving bar 130 and the outer tube 120 is provided to gradually open toward the lower end can achieve the same purpose.

As such, when the traveling wheel 140 or the curved moving bar 130 or the like is provided in the form of a Chinese character arm, it can be prevented from interfering with the foot of the driver during the driving.

Lastly, in the present specification, the case where the seat plate is automatically leveled when passing through an inclined surface or a staircase, and a case in which a technology that can easily move up and down the stairs is representatively described, has been described, but the present technology has been described in other shopping carts and carts. Naturally, the present invention is also applicable to all transportation devices in which a person or an object is mounted on the seat plate (or a loading part) while being pushed or dragged by a driver. Thus, the present invention should be interpreted by extending the scope to the corresponding transportation devices. something to do.

In addition, according to the present invention, even when passing through the stepped stairs, even if there are protrusions, irregularities or other obstacles on the ground, it is possible to provide superiority that can proceed easily riding over the obstacles.

In addition, the stroller 100 according to the present invention may be equipped with various accessory elements that are known and commonly used. That is, the seat, the awning, the seat belt, the object storage stand, the storage bag, the traveling wheel fixing means, and the like, Can be mounted.

In addition, as described above, since the traveling wheels 140 are coupled to both front and rear ends of the curved moving bar 130, the front driving wheels 140 coupled to the front end of the curved moving bar 130 are left and right. It should not be rotated in the direction, but it turns out that the rear driving wheel 140 coupled to the rear end can be implemented to rotate freely in the left and right directions.

In the foregoing description, it should be understood that those skilled in the art can make modifications and changes to the present invention without changing the gist of the present invention as merely illustrative of a preferred embodiment of the present invention.

1 is a perspective view showing a baby carriage easy to run on an inclined surface and stairs according to a preferred embodiment of the present invention;

Figure 2 is a side cross-sectional view of the stroller easy to run of the inclined surface and stairs in accordance with a preferred embodiment of the present invention,

3 is an operation diagram showing the folding function of the stroller easy to run on the inclined surface and the stairs according to an embodiment of the present invention,

4 is an operation diagram for a case where a baby carriage easy to run on an inclined surface and stairs according to a preferred embodiment of the present invention moves downwardly down the ground (stairs);

FIG. 5 is a diagram illustrating a case where a baby carriage easily traveling on an inclined surface and stairs according to a preferred embodiment of the present invention moves up an inclined stairs. FIG.

<Description of the symbols for the main parts of the drawings>

100: stroller 110: body frame

110a: vertical frame 110b: horizontal frame

110c: connecting frame 110c-1: hinge

112: handle portion 120: outer tube

122: cloud ball 130: curved moving bar

140: driving wheels 150: auxiliary wheels

152: mounting bar 160: brake means

160a: brake pad portion 160b: brake cable

170: brake operation unit s: seat

Claims (7)

A main frame forming a support structure by coupling of the vertical and horizontal frames, the handle part being formed on the upper side of the vertical frame, and the seat part on which the infant rides on the upper side; An outer tube which is provided in a state in which it is positioned along the driving direction and is coupled to both left and right sides of the main body frame and has an arc shape in a predetermined angle range; A curved moving bar having a rod shape having a predetermined angular range and slidingly moved forward and backward in a state of being inserted into the outer tube and coupled to be freely rotatable at both front and rear ends exposed to the outside; And An auxiliary wheel coupled to a rotation shaft of each of the driving wheels freely rotatable in a vertical direction, the auxiliary wheels being rotatably coupled to both front and rear ends of the mounting bar which are elongated in the front and rear directions; Stroller including easy to run of the slope and stairs. The method of claim 1, Brake means for braking and releasing braking of the curved moving bar relative to the outer tube; And A brake operating portion which controls the braking action of the brake means; Stroller easy to run on the slope and stairs further comprising a. The method according to claim 1 or 2, The vertical frame, Stroller is easy to run on the inclined surface and stairs, characterized in that provided inclined in a lying down state. The method of claim 3, wherein The vertical frame, Stroller is easy to run on the slopes and stairs, characterized in that the lower end is provided to be coupled to the central position in the front and rear direction of the outer tube. The method according to claim 1 or 2, Rolling ball is provided with a plurality so as to be arranged in the front and rear direction between the inner surface of the outer tube and the outer surface of the curved moving bar; Stroller easy to run on the slope and stairs further comprising a. The method of claim 1, The driving wheels and the auxiliary wheels on the left and right sides, Stroller is easy to run on the inclined surface and stairs, characterized in that formed in the shape of the Chinese character arm (八) to be closer to each other at the upper end and more spaced from each other at the lower end. The method according to claim 1 or 6, The curved moving bar on both the left and right sides, Stroller is easy to run on the inclined surface and stairs, characterized in that formed in the shape of the Chinese character arm (八) to be closer to each other at the upper end and more spaced from each other at the lower end.

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