KR102296671B1 - Kick scooter drawbar and kick scooter with drawbar - Google Patents

Abstract

The present invention relates to a kickboard draw bar and a kickboard provided with a pull bar, wherein the kickboard draw bar according to the present invention includes a stretchable and rigid extension bar, a kickboard handle shaft coupling formed at one end of the extension bar, and the other end of the extension bar. and a handle for a protector formed on the side, wherein the kickboard handle shaft coupler has a ball joint formed at one end of the extension bar, a receiving groove for the ball joint is formed on one side, and a first coupling groove for coupling with the kickboard handle shaft on the other side. The formed first coupling member and the second coupling groove coupled to the kickboard handle shaft are formed, and the second coupling member is coupled to the first coupling member and gripped together with the first coupling member in a manner surrounding the kickboard handle shaft. Consists of a configuration including a coupling member.

Description

Kickboard Drawbar and Kickboard with Drawbar

The present invention relates to a kickboard tow bar and a kickboard provided with a tow bar, and a kickboard tow bar that can be detachably attached to the handle shaft of the kickboard so that a guardian can tow a kickboard that young children enjoy from the front, and a kickboard having such a kickboard tow bar It's about kickboards.

A kickboard is one of the most popular rides for children. A kickboard is a structure in which a long rod-shaped handle is attached to a boarding board with wheels. Unlike an electric kickboard that is recently used as a means of transportation, the kickboard mainly used by young children is entirely dependent on the child's body movement. That is, the child puts one foot on the boarding board to board the body, and while holding the handle with both hands, kicks the ground with the other foot while applying driving force to the wheels to move quickly.

Therefore, if the child, who is a passenger, can ride a kickboard skillfully, the kickboard can be a fun means of play/exercise or a useful means of transportation. I often ask adults to pull the kickboard while I am on the board.

In order to improve the convenience of children and guardians using the kickboard as described above, a kickboard designed to allow the guardian to pull the kickboard by drawing out a traction line built into the saddle unit while riding on the kickboard in a sitting position has been proposed. However, the string-type traction means such as the proposed technology is difficult to control the direction in the direction the protector wants to guide, and since the line is drawn out from the take-up reel, the length of the traction line is adjusted according to the congestion of the surrounding environment or the height of the protector. Therefore, there was a problem that it was not easy to adjust the length even when there was a need to pull it. In addition, since the traction means is provided in the saddle unit, there is a problem that it cannot be easily applied when the kickboard used has a general standing structure.

Korean Patent Registration 10-1951178

In order to solve the problems of the prior art, the present invention can be easily detached and mounted on the handle shaft of the kickboard regardless of the structure or standard of the kickboard, and can easily control the traction direction of the kickboard, and the traction bar It is an object of the present invention to provide a kickboard tow bar and a kickboard equipped with a tow bar in which the length can be adjusted and the use safety and storage convenience are considered.

The problems to be solved of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, a kickboard tow bar according to an aspect of the present invention includes a boarding board on which a foot of a passenger is placed, front and rear wheels mounted on the lower portion of the boarding board, and extending vertically upward from the boarding board and A kickboard towing bar detachable to a kickboard including a handle shaft equipped with a handle for driving, the kickboard towing bar comprising: a telescoping extension bar; A kickboard handle shaft coupler formed at one end of the extension bar; and a protector handle formed on the other end of the extension bar. Here, the kickboard handle shaft coupler may include a ball joint formed at the one end of the extension bar; a first coupling member having a receiving groove for the ball joint formed on one side and a first coupling groove for coupling with the kickboard handle shaft on the other side; and a second coupling member in which a second coupling groove coupled to the kickboard handle shaft is formed, and the second coupling member is coupled to the first coupling member and grips the kickboard handle shaft together with the first coupling member in a manner surrounding the shaft. can

In addition, an opening may be formed at an end of the ball joint accommodating groove formed in the first coupling member so that the extension bar connected to the ball joint can rotate while the ball joint is maintained in the accommodating groove. In addition to this, the opening may further include a bottom opening that allows the extension bar connected to the ball joint to rotate vertically downward.

Meanwhile, the extension bar may further include fixing means for fixing the extension bar to the kickboard handle shaft at the lower part of the kickboard handle shaft in a state in which the extension bar is rotated vertically downward. Specifically, the fixing means is a pair of magnetic substances mounted at a predetermined position on the extension bar and a position on the kickboard handle shaft opposite to the predetermined position on the extension bar in a state in which the extension bar is rotated vertically downward, respectively, and coupled to each other by magnetic force. It may be composed of

In addition, adjacent to the handle for the protector formed on the other end of the extension bar may further include a joint for rotating the handle with respect to the extension bar.

According to another aspect of the present invention, it includes a boarding board on which a passenger's feet is placed, front and rear wheels mounted on the lower portion of the boarding board, and a handle shaft extending vertically upward from the boarding board and equipped with a handle for driving the passenger. There is provided a kickboard provided with a towing bar, in which a traction bar for a guardian for traction of the kickboard from the front is coupled to an upper portion of the handle shaft.

Specifically, the pull bar may include a stretchable extension bar; A kickboard handle shaft coupler formed at one end of the extension bar; and a handle for a protector formed at the other end of the extension bar, wherein the kickboard handle shaft coupler includes: a ball joint formed at the one end of the extension bar; a first coupling member having a receiving groove for the ball joint formed on one side and a first coupling groove for coupling with the kickboard handle shaft on the other side; and a second coupling member in which a second coupling groove coupled to the kickboard handle shaft is formed, and the second coupling member is coupled to the first coupling member and grips the kickboard handle shaft together with the first coupling member in a manner surrounding the shaft. can

In addition, the extension bar may further include fixing means for fixing the extension bar to the kickboard handle shaft at a lower portion of the kickboard handle shaft in a state in which the extension bar is rotated vertically downward.

Embodiments of the disclosed technology may have effects including the following advantages. However, this does not mean that the embodiments of the disclosed technology should include all of them, so it should not be understood that the scope of the disclosed technology is limited thereby.

According to the kickboard traction bar according to the present invention, the first coupling member and the second coupling member of the kickboard handle shaft coupler cooperate with each other to be gripped in a manner that surrounds the periphery of the kickboard handle shaft, so that the structure or standard of the kickboard being used Regardless, there is an advantage that it can be easily detached and mounted on the handle shaft of the kickboard.

In addition, according to the kickboard traction bar of the present invention, the ball joint provided at one end of the stretchable extension bar rotates according to the direction of torque applied by the user through the rigid extension bar connected to the ball joint in the receiving groove of the first coupling member. By moving so that the direction of the extension bar is adjusted, there is an advantage that the traction direction of the kickboard can be easily controlled according to the intention of the guardian.

In addition, according to the kickboard traction bar of the present invention, by adopting a configuration of an extension bar that can be stretched in length, the length of the extension bar is adjusted so that it becomes a desired separation distance and a desired height from the kickboard according to the congestion of the surrounding environment or the height of the guardian. This has the effect of promoting convenience of use.

In addition, according to the kickboard traction bar of the present invention, by providing a fixing means capable of fixing the traction bar to the kickboard handle shaft in a state in which the traction bar is rotated vertically downward, it is safe to use the kickboard when the traction bar is not used when driving the kickboard. There is an advantage in that it can guarantee the safety of the towbar and provide the risk of loss of the towbar or the convenience of storage when both the kickboard and the towbar are not used.

In addition, according to the kickboard provided with the traction bar according to the present invention, safety is guaranteed without interfering with the driving of the kickboard when a child drives the kickboard by themselves, and when the kickboard is towed by a guardian, the kickboard handle shaft It has the advantage of being able to tow in a convenient and comfortable position by easily releasing the traction bar that is safely fixed to the pole, so that the guardian can easily adjust the traction direction, height, and separation distance of the kickboard according to the usage environment.

1 is a view showing the configuration of a kickboard draw bar according to an embodiment of the present invention;
Figure 2a is a view exemplarily showing the configuration of the handle shaft coupler in the kickboard pull bar of the present invention;
Figure 2b is a view showing an exemplary configuration of the handle shaft fixing means in the kickboard pull bar of the present invention;
Figure 2c is a view showing another exemplary configuration of the handle shaft fixing means in the kickboard pull bar of the present invention;
3 is a view showing a form in which a kickboard towing bar and a kickboard according to the embodiment of FIG. 1 are combined;
4 is a view showing the configuration of a kickboard draw bar according to another embodiment of the present invention;
Figure 5a is a view showing the configuration of the joint in the embodiment of Figure 4;

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the embodiment of the present invention may be modified in various other forms, and the scope of the present invention is not limited only to the embodiments described below. The shapes and sizes of elements in the drawings may be exaggerated for clearer description, and elements indicated by the same reference numerals in the drawings are the same elements.

Furthermore, the present invention includes all possible combinations of features and aspects described herein. Thus, for example, where one feature is described in connection with one embodiment and another feature is described in connection with another embodiment, it should be understood that the present invention includes embodiments having combinations of these features.

And throughout the specification, when a part is "connected" with another part, it includes not only the case where it is "directly connected" but also the case where it is electrically or mechanically connected with another component in the middle. . In addition, when a part "includes" or "includes" a certain component, it means that other components may be further included or provided without excluding other components unless otherwise stated. .

In addition, terms such as “first” and “second” are for distinguishing one component from other components, and the scope of rights should not be limited by these terms. For example, a first component may be termed a second component, and similarly, a second component may also be termed a first component.

1 shows the configuration of a kickboard draw bar according to an embodiment of the present invention. As shown, the kickboard traction bar of the present invention includes a stretchable extension bar 200 , a kickboard handle shaft coupling hole 100 formed at one end of the extension bar 200 , and the other end of the extension bar 200 . It consists of a configuration including a handle 400 for the formed protector.

The extension bar 200 is preferably made of a rigid material so that a guardian can easily pull the kickboard connected thereto in a desired direction. Although not particularly limited, for example, it may be made of a material such as a metal including aluminum or stainless steel, or reinforced plastic.

On the other hand, the extension bar 200 allows the guardian to adjust the separation distance or height from the kickboard according to the height of the guardian or the congestion of the surrounding environment, such as obstacles. or configured to be reduced. As such, in a structure that allows the length of the extension bar 200 to be stretchable, the extension bar is configured such that at least two or more cylindrical tubes having different diameters are inserted and coupled to a cylindrical tube having a smaller diameter and a cylindrical tube having a larger diameter. By providing the position fixing means 210 between the and the cylindrical tube, the so-called telescopic pipe structure in which the length of the cylindrical tube is overlapped to the desired length of the extension bar and the length is adjusted in an antenna manner can be adopted. In addition, a plurality of locking projections are provided for each height in a cylindrical tube having a smaller diameter among the two cylindrical tubes having different diameters, and a large diameter cylindrical tube is provided with a through hole through which the locking projection is caught, so that the locking projection is located in the through hole at a desired height. Various flexible rod structures known to those skilled in the art, such as configured to be hung, may be employed.

Next, a configuration of the kickboard handle shaft coupling unit 100 will be described with reference to FIG. 2A . As shown in FIG. 2A, the handle shaft coupler 100 of the present invention has a ball joint 120 formed at one end of the extension bar 200, and a receiving groove for the ball joint 120 is formed on one side. A first coupling member 110a accommodating the ball joint 120 and having a first coupling groove coupled to the kickboard handle shaft 10 on the other side, and a second coupling recess coupled to the kickboard handle shaft 10 are formed. It consists of a configuration including a second coupling member (110b) coupled to the first coupling member (110a).

Since the ball joint 120 formed at one end of the extension bar 200 is inserted and coupled to the receiving groove in the first coupling member 110a, the extension bar 200 and the first coupling member 110a are connected, The first coupling member 110a and the second coupling member 110b cooperate with each other to receive and couple the kickboard handle shaft 10 in the first coupling groove and the second coupling groove, respectively, thereby coupling the extension bar 200 and the handle shaft. It becomes a structure in which the sphere 100 and the kickboard handle shaft 10 are both coupled.

At this time, the first coupling member 110a and the second coupling member 110b insert screws through the screw holes 130 in a state in which the circumference of the kickboard handle shaft 10 is in contact with each of the first and second coupling grooves. And by adjusting the fastening strength of the first and second coupling members (110a, 110b) to meet the standard of the handle shaft (10), the first and second coupling members to each other, and the first and second coupling members (110a, 110b) and the handle It is composed of a structure in which coupling between the shafts 10 is fixed.

Alternatively, the handle shaft is fixed in such a way that a bolt through hole of an appropriate size is formed in the apex region of the hemispherical second coupling member 110b and a bolt of a corresponding size is inserted through the through hole and tightened. You can also adopt the configuration. That is, in a state in which the circumference of the kickboard handle shaft 10 is brought into contact with each of the first and second coupling grooves of the first and second coupling members 110a and 110b, the through bolt is inserted through the bolt through hole formed in the second coupling member. It is also possible to fix the coupling between the first and second coupling members and the handle shaft by inserting and tightening the through bolt to the extent that the through bolt abuts against the kickboard handle shaft to stably fix the handle shaft.

The coupling structure by the bolt and screw fastening method as described above has the advantage that the draw bar of the present invention can be easily applied to various specifications of the handle shaft 10 that may be different for each kickboard manufacturer, There is an advantage in that it can be easily detached and mounted on the .

On the other hand, although not particularly limited, the structure of the ring 150 in which one end of a silicone or rubber material is cut as shown in (c) of FIG. The first and second coupling members 110a and 110b and the handle shaft 10 are interposed around the kickboard handle shaft corresponding to the coupling groove, and the handle shaft 10 is stably fixed to the handle shaft coupling hole 100 . It is also possible to configure it to be At this time, in order to remove a gap that prevents stable fixing between the first and second coupling members 110a and 110b and the handle shaft 10 , the thickness of the ring 150 structure is adjusted according to the standard of the handle shaft 10 . It can be adjusted to intervene.

In addition, as shown in (a) and (b) of Figure 2a, the ball joint 120 at the end of the ball joint receiving groove formed in the first coupling member 110a while maintaining the received state inside the receiving groove A circular opening 110d having a smaller diameter than the ball diameter of the ball joint 120 is formed so that the extension bar 200 connected to the ball joint 120 can rotate. By appropriately adjusting and forming the diameter of the circular opening 110d within a range smaller than the diameter of the ball joint 120, a solid angle determined by the rotation range of the extension bar 200 about the y-axis in the illustrated Cartesian coordinate system. size can be adjusted. That is, when the diameter of the circular opening 110d is small, the extension bar 200 can rotate in a range of 360 degrees on a plane parallel to the xz plane in a state in which the degree of separation from the circular opening 110d is limited, and the circular opening As the diameter of 110d increases, the extension bar 200 is widened so that it can be rotated in a 360 degree range on a plane parallel to the xz plane. For example, the extent to which the above-described extension bar 200 is spread may be configured to be at least 10 to 20 degrees or more, more preferably, about 30 degrees or more with respect to the y-axis.

As described above, in the present invention, the ball joint 120 provided at one end of the extension bar 200 is transmitted from the user through the rigid extension bar 200 connected to the ball joint in the receiving groove of the first coupling member 110a. By rotating and moving according to the direction of the torque to adjust the direction of the extension bar, it is possible to easily control the traction direction of the kickboard according to the user's intention.

Additionally, a bottom opening 110c that allows the extension bar 200 connected to the ball joint 120 to rotate vertically downward may be further formed in the circular opening 110d. For example, as shown in FIG. 2A , the bottom opening 110c is smaller than the diameter of the ball joint 120 to prevent the ball joint accommodated therein from falling out from the receiving groove, and at the same time, the extension bar 200 It may be configured in a partial arc shape having a diameter that is larger than the diameter to allow movement of the extension bar 200 through the bottom opening 110c.

In addition, the ball joint receiving groove includes a first coupling groove to which the kickboard handle shaft 10 is coupled so that the ball joint 120 can be inserted and seated in the ball joint receiving groove of the first coupling member 110a without falling out. It is formed in a communication structure, and the first coupling groove is formed to have a size larger than the diameter of the ball joint, so that the ball joint can be configured to be inserted into the ball joint receiving groove from the side where the first coupling groove is formed. In addition, optionally, the first coupling member 110a is divided in the y-axis direction to form each part, and after placing the ball joint in the receiving groove, the divided parts are firmly assembled to seat the ball joint in the receiving groove. way is also possible. In this case, the ball joint receiving groove and the first coupling groove in the first coupling member 110a may be formed in a structure separated from each other by a partition wall. In addition, with respect to the structure and forming method of the first coupling member for seating the ball joint in the receiving groove, various techniques known to those skilled in the art may be applied without limitation.

As described above, in the kickboard traction bar of the present invention, the extension bar 200 connected to the ball joint can rotate vertically downward through the configuration of the bottom opening 110c formed in the first coupling member 110a, and the extension bar ( 200) may be configured to further include a fixing means 300 that can be fixed by being coupled to the kickboard handle shaft in a vertically downwardly rotated state. 1 and 2b, 2c shows an exemplary configuration of the handle shaft fixing means 300 in the kickboard pull bar of the present invention.

As exemplarily shown in FIGS. 1 and 2B , the fixing means 300 has a predetermined position on the extension bar 200 and a predetermined position on the extension bar in a state in which the extension bar is rotated vertically downward. At positions on the kickboard handle shaft 10 , it may be composed of a pair of magnetic materials each mounted. That is, the first magnetic body 310 is formed at a predetermined position on the extension bar 200 , and the first magnetic body 310 is formed at a position on the kickboard handle shaft 10 corresponding to the predetermined position on the extension bar 200 in a vertically downwardly rotated state. By forming two magnetic bodies (M), in a state in which the traction bar is vertically downward, it may be configured to maintain a state attached to each other by magnetic attraction to the handle shaft 10 of the kickboard. Although not particularly limited, the first magnetic body 310 and the second magnetic body M may be formed of iron and magnets or magnets having different polarities, and the kickboard handle shaft may be caused by external shocks that may occur when using a kickboard. It is preferable to consist of a material capable of providing a magnetic attraction to the extent that the coupling between the pull bar and the pull bar is not easily released.

In addition, in the embodiment of Figures 1 and 2b, a configuration in which the first magnetic body 310 is attached to the surface of the cylindrical member surrounding the circumference of the extension bar 200 as a specific fixing means 300, and the first member ( 320a) and the second member 320b are combined to surround the kickboard handle shaft 10, and the second magnetic body M is attached on the opposite surface 320 of the first magnetic body 310 on the component. Although not limited thereto, it will be apparent to those skilled in the art that various deformable structures capable of fixing the handle shaft of the traction bar and the kickboard by magnetic force may be applied in addition to the above configuration.

In addition, optionally, as shown in FIG. 2C , the fixing means 300 may be configured as a fixture made of an elastic material capable of gripping the kickboard handle shaft at a predetermined position on the extension bar 200 . Although there is no particular limitation on the material of the fixture, it has sufficient rigidity so that the coupling with the kickboard handle shaft is not easily released due to an external impact that may occur when using the kickboard, while being spread apart to hold the handle shaft may be made of a material such as silicon, rubber, or metal that can have an elastic force that can return to the original shape.

3 shows a state in which the kickboard tow bar and the kickboard handle shaft 10 according to the embodiment of FIG. 1 are coupled, in particular, in a state in which the kickboard tow bar is rotated vertically downward around the handle shaft coupling hole 100 on the upper part, the fixing means It shows a state in which the tow bar and the kickboard handle shaft 10 are coupled through 300 . According to the configuration of the kickboard equipped with the kickboard draw bar and the kickboard tow bar of the present invention, it is possible to fix the kickboard tow bar in the state as shown in the figure. can In addition, when both the kickboard and the tow bar are not used, the risk of loss or storage convenience of the tow bar can be improved by storing the kickboard in such a state.

4 and 5A show the configuration of a kickboard tow bar according to another embodiment of the present invention.

Compared with the embodiment of FIG. 1 , the embodiment has a difference in which the joint part 500 is further formed in a portion adjacent to the handle 400 . That is, in the end portion of the extension bar 200 adjacent to the handle 400 for the protector of the kickboard traction bar of the present invention, the joint part 500 for rotating the handle 400 with respect to the extension bar 200 is further included. can be made with Specifically, as shown in FIG. 5A, the joint part 500 comprises a hemispherical member 510 that is free to rotate at an end adjacent to the handle 400 of the extension bar 200, and the hemispherical member 510 is formed. By coupling the handle 400 with the pin shaft 520 interposed therebetween, the handle 400 may be configured to rotate around the pin shaft 520 to rotate in a 180 degree range with respect to the extension bar 200 . .

By being able to additionally adjust the coupling angle between the handle 400 and the extension bar 200 through the configuration of the joint part 500 as described above, there is an advantage in that the traction direction can be controlled in a more expanded angular range.

The protector's handle 400 is a part that the protector directly grips with the pull bar to pull the kickboard, and the surface of the handle 400 is made of an elastic material including rubber or silicon to improve the grip at least partially. It may be coated or protuberance formed.

On the other hand, the kickboard provided with the traction bar of the present invention has a configuration in which the kickboard traction bar as described in the above specific embodiment is coupled to the upper part of the kickboard handle shaft. Specifically, the kickboard can be applied without limitation to the configuration of a conventional kickboard including a boarding board equipped with wheels and a handle shaft extending vertically upward from the boarding board and equipped with a handle for a passenger's driving. In addition, descriptions regarding the specific configuration of the kickboard traction bar coupled to the kickboard and the detachable structure with the kickboard will be omitted because they overlap with those described above.

According to the kickboard provided with the traction bar of the present invention, when the guardian needs to tow the kickboard, the coupling of the traction bar fixed to the handle shaft is easily released to allow the kickboard to be towed in a desired direction in a comfortable posture, and the traction bar If a child directly drives the kickboard without using it, the tow bar is stably fixed and the kickboard can be driven in a state where safety is guaranteed.

100 Handle shaft coupling port 110a, 110b First and second coupling members
120 ball joint 200 extension bar
300 Fixing means 400 Protective handle
500 joints

Claims (8)

A kickboard towing bar detachable to a kickboard comprising a boarding board on which a passenger's feet are placed, front and rear wheels mounted on the lower part of the boarding board, and a handle shaft extending vertically upward from the boarding board and equipped with a handle for driving the passenger. West,
The kickboard tow bar,
Stretchable rigid extension bar;
A kickboard handle shaft coupler formed at one end of the extension bar;
a handle for a protector formed on the other end of the extension bar; and
and fixing means coupled to the extension bar so that the extension bar is fixed to the kickboard handle shaft at the lower part of the kickboard handle shaft in a state in which the extension bar is rotated vertically downward;
The kickboard handle shaft coupling part,
a ball joint formed at the one end of the extension bar;
a first coupling member having a receiving groove for the ball joint formed on one side and a first coupling groove for coupling with the kickboard handle shaft on the other side;
an opening at an end of the ball joint accommodating groove formed in the first coupling member so that an extension bar connected to the ball joint can rotate while maintaining the state in which the ball joint is accommodated in the accommodating groove;
The opening may include a bottom opening allowing the extension bar connected to the ball joint to rotate vertically downward; and
a second coupling member having a second coupling groove coupled to the kickboard handle shaft, the second coupling member being coupled to the first coupling member and gripping the kickboard handle shaft together with the first coupling member in a manner surrounding the shaft;
A kickboard tow bar comprising a.
delete delete delete The method according to claim 1,
The fixing means includes a pair of magnetic substances mounted at a predetermined position on the extension bar and a position on the kickboard handle shaft opposite to the predetermined position on the extension bar in a state in which the extension bar is rotated vertically downward, respectively, and coupled to each other by magnetic force. A kickboard tow bar, characterized in that.
The method according to claim 1,
The kickboard traction bar further comprising a joint portion for rotating the handle with respect to the extension bar adjacent to the handle for a protector formed on the other end of the extension bar.
In a kickboard comprising: a boarding board on which a passenger's feet are placed; front and rear wheels mounted on the lower portion of the boarding board; A kickboard provided with a tow bar, in which a tow bar for a protector for towing the kickboard from the front is coupled to the kickboard,
The tow bar is
telescoping extension bar;
A kickboard handle shaft coupler formed at one end of the extension bar;
a handle for a protector formed on the other end of the extension bar; and
and fixing means coupled to the extension bar so that the extension bar is fixed to the kickboard handle shaft at the lower part of the kickboard handle shaft in a state in which the extension bar is rotated vertically downward;
The kickboard handle shaft coupling part,
a ball joint formed at the one end of the extension bar;
a first coupling member having a receiving groove for the ball joint formed on one side and a first coupling groove for coupling with the kickboard handle shaft on the other side;
an opening at an end of the ball joint accommodating groove formed in the first coupling member so that an extension bar connected to the ball joint can rotate while maintaining the state in which the ball joint is accommodated in the accommodating groove;
The opening includes a bottom opening that allows the extension bar connected to the ball joint to rotate vertically downward; and
a second coupling member having a second coupling groove coupled to the kickboard handle shaft, the second coupling member being coupled to the first coupling member and gripping the kickboard handle shaft together with the first coupling member in a manner surrounding the shaft;
A kickboard provided with a tow bar, characterized in that it comprises a.
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