KR20230170167A - Smart cart joint apparatus - Google Patents

Abstract

The present specification is a smart cart joint device including a joint body and a joint including one or more joint holes, wherein the joint body is capable of inserting a joint link having a spherical link end, and the front opening has a diameter greater than the diameter of the spherical link end. It relates to a smart cart joint device including a narrowly configured receiving portion.

Description

SMART CART JOINT APPARATUS}

This specification relates to a smart cart joint device. More specifically, this specification relates to a smart cart joint device for connecting a rear wheel axle of a moving object such as a bicycle and a cart.

Means of transportation such as bicycles are being used for leisure, exercise, and transportation, and recently, personal mobility devices such as electric wheels, electric kickboards, and electric bicycles powered by electric energy have been increasing.

Due to the nature of these means of transportation for one or two people, there was a problem that it was difficult to load cargo and only a small number of people could move. To solve this problem, additional transportation devices such as carts and wagons were connected to transportation methods such as bicycles. A plan was devised.

By connecting additional transportation devices such as carts to a means of transportation such as a bicycle, the loading area can be expanded, thereby expanding the means of transportation and providing convenient movement, such as transporting cargo or transporting additional people.

Likewise, various devices are being designed to connect carts to means of transportation such as bicycles, but the use of various connectors, screw devices, etc. is required to connect carts, and the connection structure is complex, so it is convenient and easy to connect and disconnect carts. A joint device that can do this is needed.

Korean Patent No. 10-1775693

One purpose of the present specification is to provide a device that can easily connect and disconnect a cart to a means of transportation.

Another object of the present specification is to provide a smart cart joint device and structure for conveniently connecting and disconnecting a cart to a means of transportation such as a bicycle.

The technical problems of this specification are not limited to those mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below.

A brake device for a bicycle according to an embodiment of the present specification includes a joint including a joint body and one or more joint holes, wherein the joint body is capable of inserting a joint link having a spherical link end, and the front opening has the It includes a receiving portion narrower than the diameter of the spherical link end.

Additionally, in one embodiment, the joint includes two or more joint holes, and the two or more joint holes may each include a through hole and an inner spiral portion that has a diameter larger than the through hole and at least partially overlaps.

Additionally, in one embodiment, the centers of the two or more joint holes may not be located in a straight line.

In addition, in one embodiment, the joint link may further include a Qalever that secures the accommodating part, and the joint body may include a through hole into which the Qalever can be inserted into the upper and lower surfaces of the accommodating part.

In addition, in one embodiment, the joint link includes an extension bar connected to the end of the spherical link, and the extension bar may include an inclined surface on one or more of the upper and lower surfaces that is depressed toward the end of the spherical link. .

In addition, in one embodiment, the accommodating portion further includes a joint cap inserted inward in a direction opposite to the joint link, wherein the joint cap includes an insert cap having a hollow cylindrical shape inserted into the accommodating portion and an insertion cap of the inserting cap. It may include a plurality of protrusions extending outward, and each of the plurality of protrusions may be formed so that the slope of one end thereof is lowered in the direction in which each of the plurality of protrusions is inserted into the receiving part.

Additionally, in one embodiment, the joint may be connected to the mobile body through the one or more joint holes using one or more fastening members selected from the group consisting of a through axle, Qalever, and nut.

According to an embodiment of the present specification, a device that can easily connect and disconnect a cart to a means of transportation can be provided.

According to an embodiment of the present specification, a smart cart joint device and structure for conveniently connecting and disconnecting a cart to a means of transportation can be provided.

According to an embodiment of the present specification, a joint device that can conveniently connect and disconnect a cart by adjusting the connection position, inclination, etc. to the rear wheel of a means of transportation such as a bicycle, and a joint connection structure that can maintain the connection stably are provided. can do.

The effects of the present specification are not limited to the effects mentioned above, and other effects not mentioned may be clearly understood by those skilled in the art from the description of the claims.

1A and 1B show a device diagram connecting a cart to a kickboard and a bicycle according to an embodiment of the present specification.
Figure 2 shows the structure of a smart cart joint device according to an embodiment of the present specification.
3A to 3D illustrate joint structures having various joint holes according to various embodiments of the present specification.
Figure 4 shows a Qalever structure that secures the joint link so that it does not fall off, according to an embodiment of the present specification.
Figure 5 shows a joint cap structure for increasing the fixing force of the joint link according to an embodiment of the present specification.
Figure 6 shows the structure of the distal end of a joint link according to an embodiment of the present specification.
7A and 7B show an exploded view and an assembled view of the joint device according to the first embodiment of the present specification.
8A and 8B show an exploded view and an assembled view of the joint device according to the second embodiment of the present specification.
9A and 9B show an exploded view and an assembled view of the joint device according to the third embodiment of the present specification.
Figures 10a to 10c show joint fixing methods using various joint hole fastening members according to various embodiments of the present specification.

Preferred embodiments according to the present invention will be described in detail with reference to the attached drawings. The detailed description set forth below in conjunction with the accompanying drawings is intended to illustrate exemplary embodiments of the present disclosure and is not intended to represent the only embodiments in which the invention may be practiced. The following detailed description includes specific details to provide a thorough understanding of the disclosure. However, one skilled in the art will appreciate that the present invention may be practiced without these specific details.

The following embodiments combine the elements and features of the present specification in a predetermined form. Each component or feature may be considered optional unless explicitly stated otherwise. Each component or feature may be implemented in a form that is not combined with other components or features. Additionally, some components and/or features may be combined to configure embodiments of the present specification. The order of operations described in the embodiments of this specification may be changed. Some features or features of one embodiment may be included in other embodiments or may be replaced with corresponding features or features of other embodiments.

Specific terms used in the following description are provided to aid understanding of the present specification, and the use of these specific terms may be changed to other forms without departing from the technical spirit of the present specification.

In some cases, to avoid ambiguity in the concepts of the present specification, well-known structures and devices are omitted or are shown in block diagram form focusing on the core functions of each structure and device. In addition, the same components are described using the same reference numerals throughout this specification.

Additionally, in this specification, terms such as first and/or second may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another component, for example, without departing from the scope of rights according to the concepts of the present specification, a first component may be named a second component, and similarly , the second component may also be named the first component.

In addition, throughout the specification, when a part "includes" a certain component, this means that it may further include other components rather than excluding other components, unless specifically stated to the contrary.

1A and 1B show a device diagram connecting a cart to a kickboard and a bicycle, respectively, according to an embodiment of the present specification.

A method of connecting carts is being used as a way to expand the transportation range by connecting additional transportation devices to moving objects such as bicycles and electric kickboards. The structure of the smart cart joint device 100 proposed in this specification can also be applied to means of transportation with different heights due to different rear wheel sizes, such as a kickboard with small wheels or a bicycle with large wheels.

As shown in FIG. 1A, a cart can be connected to a kickboard with small wheels through the smart cart joint device 100. Additionally, as shown in FIG. 1B, the cart can be connected to a bicycle whose wheels are relatively large through the smart cart joint device 100.

It can be operated by loading a cart connected to the rear wheel of a kickboard, bicycle, etc., or by having a person ride and the cart follow the movement of the kickboard, bicycle, etc.

Figure 2 shows the structure of a smart cart joint device 100 according to an embodiment of the present specification.

Referring to FIG. 2, the smart cart joint device 100 according to one embodiment may include a joint 110, a Qalever 120, a joint cap 130, and a joint link 140. The smart cart joint device 100 is installed on the rear wheel of a bicycle, etc., and the joint cap 130 and the joint link 140 are assembled in the body of the joint 110 and the joint 110. When the Qalever 120 assembled through the cap 130 is fastened, the joint link 140 is connected to the joint 110. The smart cart joint device 100 can be assembled in this way, and the bicycle on which the smart cart joint device 100 is installed and the cart connected to the joint link 140 are connected so that the cart moves along with the movement of the bicycle.

The specific configuration of the devices constituting the smart cart joint device 100 is described with reference to FIGS. 3 to 6.

3A to 3D illustrate the structure of a joint 110 having various joint holes 111 according to various embodiments of the present specification.

The joint 110 may include a joint hole 111, a joint body 113, a receiving portion 115, and a through hole 117. The joint 110 is fixed to the rear wheel of a moving object such as a bicycle through the joint hole 111. As shown in FIGS. 10a to 10c, which will be described later, the joint hole 111 is a new fastening member in place of the original axle on the rear wheel axle of the bicycle and is fastened to the rear wheel axle using a thru axle, Qalever, or nut. It can be. The joint body 113 is a body part connected to the joint link 140. One side of the joint body 113 includes an open receiving portion 115. The receiving portion 115 provides a space for accommodating the joint cap 130 and the joint link 140, and when the Qalever 120 is fastened through the through hole 117 formed in the joint body 113, the joint link ( 140) may be fixedly connected to the joint 110. The receiving portion 115 has the upper and lower surfaces and the rear closed and three sides open, and both sides in the longitudinal direction where the joint link 140 is inserted are the joint link 140 when the Qalever 120 is unfolded. ) can be larger than the spherical cross-sectional area of. On the other hand, the open front portion of the receiving portion 115 may be set to be narrower than the spherical cross-sectional diameter of the joint link 140.

3A to 3D show various embodiments of the joint 110 according to the structure of the joint hole 111. FIG. 3A shows an example of the joint 110 having one joint hole 111 in the joint 110 structure according to the first embodiment of FIGS. 7A and 7B. The joint hole 111 includes a through hole and an inner spiral portion 112 whose diameter is larger than the through hole. 3B and 3C show a joint having a joint hole 111 structure in which the inner spiral portion 112 surrounding a plurality of through holes is at least partially overlapped in the joint 110 structure according to the second embodiment of FIGS. 8A and 8B. An example is shown in (110). As shown in FIG. 3B, the centers of the plurality of holes may not be located in a straight line, and as shown in FIG. 3C, the centers of the plurality of holes may be configured to be located in a straight line. FIG. 3D is an example of a joint 110 having a joint hole 111 structure in which the inner spiral portion 112 surrounding a plurality of through holes does not overlap in the joint 110 structure according to the third embodiment of FIGS. 9A and 9B. shows. The plurality of through holes may have different diameters.

The form of the joint 110 according to the present invention is not limited to the above-described examples, and various modifications are possible within the scope of performing the function of fixing the joint link 140 to a means of transportation such as a bicycle.

Figure 4 shows the structure of the Qalever 120 that secures the joint link 140 so that it does not fall off, according to an embodiment of the present specification.

Referring to FIG. 4, the Qalever 120 according to one embodiment may be composed of a lever 121, a rotation axis 123, a through bar 125, a fixing ring 127, and a fixing end 129. As shown in FIG. 2, the Qalever 120 is fixed through the joint body 113 to prevent the joint link 140 from falling out and to be fixed to the joint 110.

When the lever 121 is folded as shown in FIG. 4, the receiving portion 115 of the joint body 113 tightens and secures the joint link 140. When the lever 121 is rotated clockwise and unfolded as shown in FIG. 4, the receiving portion 115 of the joint body 113 is loosened and the joint link 140 can be separated from the receiving portion 115. It becomes a state of being. The lever 121 can rotate in an up and down direction about the rotation axis 123, and as the lever 121 rotates, the through bar 125 connected through the rotation axis 123 can move up and down. The through bar 125 is fastened by inserting into the through hole 117 formed on the upper and lower surfaces of the receiving portion 115 in the joint body 113, respectively. The fixing ring 127 is assembled in contact with the bottom surface of the joint body 113 at the bottom of the through bar 125, and when the lever 121 is folded as shown in FIG. 4, the fixing ring 127 moves upward. Pressure is applied to the bottom surface of the joint body 113 by receiving the force, and this pressure allows the joint link 140 to be fixed within the receiving portion 115. The through bar 125 is inserted into the through hole 117, and the fixed end 129 on the upper part of the through bar 125 is formed to have a larger diameter than the through hole 117, as shown in FIGS. 3A to 3D. It is fastened to the inner spiral portion 112 of the through hole 117 and is prevented from passing through the through hole 117, so the range of movement is limited and pressure can be applied to the joint body 113 according to the movement of the lever 121. The through bar 125 may be formed to have a smaller diameter than the through hole 117 and may be inserted into the through hole 117. The fixing ring 127 and the fixing end 129 may include elastic parts such as springs to provide elasticity to the fixing force according to the rotational movement of the lever 121.

Figure 5 shows the structure of the joint cap 130 to increase the fixing force of the joint link 140 according to an embodiment of the present specification.

Referring to FIG. 5, the joint cap 130 according to one embodiment may be composed of an insertion cap 131, a protrusion 133, a cap through-hole 135, and a fixing plate 137. As shown in FIG. 2, the joint cap 130 may be inserted into the receiving portion 115 of the joint body 113 in the opposite direction of the joint link 140 in order to strengthen the fixing force of the joint link 140.

The insertion cap 131 is an area inserted into the receiving portion 115 of the joint body 113 and has a plurality of protrusions 133 extending outward. As shown in FIG. 5, a plurality of protrusions 133 are formed along the outer circumference of the insertion cap 131, and the protrusions 133 formed in the extending direction of the insertion cap 131 are inserted into the receiving portion 115. It may be formed to have a section that is lowered so that one end is inclined in the direction. By having this structure, the joint cap 130 can be more easily inserted into the joint body 113. As shown in FIG. 5 , cap through-holes 135 for fastening the Qalever 120 may be formed on the upper and lower surfaces of the insertion cap 131, respectively. The diameter of the cap through hole 135 must be larger than the diameter of the through bar 125 so that the through bar 125 of the Qalever 120 can pass through the cap through hole 135. The fixing plate 137 is connected to the insertion cap 131, and only the insertion cap 131 portion is inserted into the receiving portion 115 of the joint body 113, and the fixing plate 137 is inserted into the receiving portion 115 so that it cannot pass through. It is made large. After the joint cap 130 is inserted into the joint body 113, the cap through-hole 135 may be positioned to correspond to the through-hole 117 so that it can be fixed by passing through the Qalever 120. The insertion cap 131 is manufactured in the form of an empty cylinder and accommodates a portion of the end of the spherical joint link 140, thereby providing a firmer fixing force to prevent the joint link 140 from moving further in the insertion direction.

Figure 6 shows the structure of the distal end of the joint link 140 according to an embodiment of the present specification.

Referring to FIG. 6, the distal end of the joint link 140 may be composed of a spherical link end 141 and an extension bar 143. As shown in FIG. 2, the link end 141 of the joint link 140 may be inserted into the receiving portion 115 of the joint body 113.

The link end 141 is formed in a spherical shape and can be partially accommodated and contacted with the distal end of the insertion cap 131 and fixed more firmly. In one embodiment, the extension bar 143 may be configured to have an inclined surface where the upper part is gradually depressed toward the spherical link end 141, as shown in FIG. 6. In another embodiment, the extension bar 143 may be configured so that the lower part or both the upper and lower parts have an inclined surface that is gradually depressed toward the spherical link end 141. By having such an inclined surface, it is possible to respond by moving up and down flexibly even when the cart steps on an obstacle and bounces upward, or when it is connected to a moving object of different height, such as a bicycle or kickboard. That is, the link end 141 is firmly fixed to the joint body 113 in the insertion direction, but the joint link 140 can move up and down with a certain margin due to the presence of an inclined surface of the extension bar 143. The inclined surface formed on the extension bar 143 may be a flat inclined plane as shown in FIG. 6, and may be deformed into a V-shaped depression toward the center, and may be variously modified depending on the structure of the joint 110. You can.

The exploded and assembled views of the joint device 100 according to the first to third embodiments using the parts shown in FIGS. 3A to 6 described above are shown in FIGS. 7A to 9B.

Referring to FIGS. 7A and 7B, the joint device 100 according to the first embodiment of the present specification includes a joint cap 130 and a joint link 140 in a joint 110 provided with one joint hole 111. It is combined and assembled by fastening the Qalever 120. The joint device 100 can be fixed to the rear wheel axle of a bicycle, etc. by inserting a thru axle, Qalever, or nut into the joint hole 111, as shown in FIGS. 10A to 10C, which will be described later. At this time, when the Qalever is used, the first type bracket 151 (for example, 12 Bracket) can be fastened together to the joint hole 111, and when a nut is used, the second type bracket 153 (e.g., 10 Bracket) may be fastened together to the joint hole 111.

Referring to FIGS. 8A and 8B, the joint device 100 according to the second embodiment of the present specification includes a joint cap 130 and a joint link 140 in the joint 110 provided with a plurality of joint holes 111. It is combined and assembled by fastening the Qalever 120. Joint device 100 according to the second embodiment. Various parts are assembled in the joint 110 as shown in FIG. 3B or 3C, which has a joint hole 111 structure in which a plurality of holes are at least partially overlapped with the inner spiral portion 112. . The plurality of holes may have the same diameter or different diameters, and the joint device 100 may be installed depending on the type of means of transportation such as a bicycle, kickboard, or motorcycle, and the installation inclination (e.g., parallel to the ground). Alternatively, only some of the plurality of holes can be installed on the mobile means using fastening members so that the device can be installed differently (or obliquely to the ground). That is, the joint device 100 can be fixed to the rear wheel axle of a bicycle, such as parallel or inclined to the ground, by inserting a thru-axle, Q-alever, or nut into one or more joint holes 111 among the plurality of holes.

Referring to FIGS. 9A and 9B, the joint device 100 according to the third embodiment of the present specification includes a joint cap 130 and a joint link 140 in the joint 110 provided with a plurality of joint holes 111. It is combined and assembled by fastening the Qalever 120. Joint device 100 according to the third embodiment Various parts are assembled to the joint 110 having a joint hole 111 structure in which a plurality of holes do not overlap the inner spiral portion 112. The plurality of holes may have the same diameter or different diameters, and the joint device 100 may be installed depending on the type of means of transportation such as a bicycle, kickboard, or motorcycle, and the installation inclination (e.g., parallel to the ground). Alternatively, only some of the plurality of holes can be installed on the mobile means using fastening members so that the device can be installed differently (or obliquely to the ground). That is, the joint device 100 can be fixed to the rear wheel axle of a bicycle, such as parallel or inclined to the ground, by inserting a thru-axle, Q-alever, or nut into one or more joint holes 111 among the plurality of holes.

10A to 10C show a method of fixing the joint 110 using various joint hole fastening members according to various embodiments of the present specification.

As shown in FIGS. 10A to 10C, any one of the through axle 161, Qalever 163, or nut 165 may be used as a fastening member of the joint hole 111. When the Qalever 163 is used, the first type bracket 151 (e.g., 12Φ Bracket) can be fastened to the joint hole 111, and when the nut 165 is used, the second type bracket 153 ) (for example, 10ΦBracket) may be fastened to the joint hole 111.

Detailed description of the preferred embodiments disclosed above is provided to enable any person skilled in the art to make or practice the present invention. Although the description has been made above with reference to preferred embodiments of the present specification, those skilled in the art may make various modifications and changes to the present invention without departing from the spirit and scope of the present specification as set forth in the claims below. You will understand that you can do it.

Accordingly, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. In addition, although the preferred embodiments of the present specification have been shown and described above, the present specification is not limited to the specific embodiments described above, and the technical field to which the invention pertains without departing from the gist of the present specification as claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be understood individually from the technical ideas or perspectives of the present specification.

Claims (7)

joint body; and
A smart cart joint device comprising a joint including one or more joint holes,
The joint body is,
A smart cart joint device, wherein a joint link having a spherical link end is insertable, and the front opening includes a receiving portion configured to be narrower than the diameter of the spherical link end.
According to paragraph 1,
The joint includes two or more joint holes,
The two or more joint holes each include a through hole and an inner thread having a larger diameter than the through hole and at least partially overlapping.
According to paragraph 2,
A smart cart joint device in which the centers of the two or more joint holes are not located in a straight line.
According to paragraph 1,
Further comprising a Qalever that secures the joint link to the receiving portion,
The joint body is a smart cart joint device including a through hole into which the Qalever can be inserted on the upper and lower surfaces of the receiving portion.
According to paragraph 1,
The joint link includes an extension bar connected to an end of the spherical link,
The extension bar includes an inclined surface on at least one of the upper and lower surfaces that is depressed toward the end of the spherical link.
According to paragraph 1,
Further comprising a joint cap inserted in the receiving portion in the opposite direction of the joint link,
The joint cap includes an insert cap in the form of a hollow cylinder inserted into the receiving portion and a plurality of protrusions extending outward from the insert cap,
A smart cart joint device, wherein each of the plurality of protrusions is formed so that an inclination of one end of the plurality of protrusions is lowered in the direction in which the protrusions are inserted into the receiving part.
According to paragraph 1,
The joint is a smart cart joint device that is connected to a moving object through the one or more joint holes using one or more fastening members selected from the group consisting of a through axle, Qalever, and nut.

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