Convertible carrier

Abstract

The present invention relates to a convertible carrier capable of switching between a first mode and a second mode. The convertible carrier comprises: a front chamber; a rear chamber, which can be coupled to the front chamber; a handle part connected to the rear chamber; and a moving means part, which is attachable / detachable and can rotate 360 degrees. The handle part includes a hinge-coupled handle rotating part, and the rotational state thereof is controlled by means of a switching operation part. The switching operation part includes a switching handle, a switching handle pin, a moving pin, a switching wire and a switching guide, and thus enables switching to the first mode or the second mode according to the operation of a user.

Description

Convertible suitcase

[0001] The present invention relates to a carrier including a storage space, and more specifically, to a variable carrier (convertible carrier) capable of switching between a vertical mode and a horizontal mode and having a detachable moving part.

[0002] The convertible carrier according to the present invention is designed to allow the mode to be changed according to the user's needs, and is characterized by being usable not only in a general carrier form (vertical mode) but also in a wagon form (horizontal mode). In particular, the structure of the handle and the means of transport is improved to enhance user convenience and is configured to be used efficiently in various environments.

[0003]

[0004] Generally, luggage or a carrier is a storage device designed to allow users to store and transport items; it is typically configured to facilitate easy transport, usually including wheels and handles. These carriers are used in various situations, including travel and business trips, and various features are being added to enhance user convenience.

[0005]

[0006] Conventional carriers could only be used in a standard movement mode (vertical movement) or as a wagon (horizontal movement). These products had limitations due to their simple structure and insufficient consideration of user convenience.

[0007] Therefore, there is a growing need for a carrier that can flexibly change modes to adapt to various mobility environments and features a structure that is easy to transform.

[0008]

[0009] The present invention aims to provide a convertible carrier capable of transforming into a carrier and a wagon mode. Conventional carriers possess mobility and storage functions, but they have problems such as difficulty in loading large amounts of luggage and unstable movement depending on the terrain.

[0010] In addition, the present invention aims to provide a convertible carrier that is structurally robust while allowing easy switching between carrier mode and wagon mode. The rear chamber and handle portion are formed with a hinge-connected structure to enable the user to easily transform the carrier into a wagon form, and a moving pin and a fixing structure are applied to ensure stable use even after transformation. The moving portion is designed to be detachable to provide optimized mobility in various environments.

[0011] The present invention allows the user to easily perform transformations through a switching operation unit, and further enhances convenience by providing a natural restoring force to the handle part using a rotating spring. It facilitates storage and maintenance by configuring the wheel module to be easily detachable, and maximizes the user experience by designing it to enable stable movement on various surfaces.

[0012]

[0013] A convertible carrier according to one embodiment of the present invention is a convertible carrier capable of switching between a first mode and a second mode, comprising a front chamber, a rear chamber capable of being coupled with the front chamber, a handle portion connected to the rear chamber, and a moving means portion that is rotatable 360 ​​degrees and detachable, wherein the handle portion is disposed at the lower outer surface of the rear chamber and may include a handle rotation portion that is hinge-coupled to the rear chamber and is rotatable and enables switching between the first mode and the second mode.

[0014] Additionally, the handle portion may include an inner handle pipe positioned in a concave shape receiving portion formed on the outer surface of the rear chamber and arranged to slide in the longitudinal direction, an outer handle pipe formed in a structure surrounding the inner handle pipe, and a T-shaped handle portion coupled to the upper end of the inner handle pipe and including an extension button for length adjustment.

[0015] Additionally, the handle portion includes a switching operation portion formed by being positioned at a certain distance along the longitudinal direction from the top of the handle portion, and the switching operation portion includes a switching handle capable of moving a certain distance along the longitudinal direction for switching between the first mode and the second mode, a switching handle pin connected to the switching handle and moving according to the movement of the switching handle, and a switching wire connecting the switching handle pin and a moving pin whose movement is guided through a switching guide, wherein when the switching handle is in the first position, the moving pin cannot move by the switching guide, and when the switching handle is in the second position, the moving pin may be able to move along the switching guide.

[0016] Additionally, the handle rotation part is positioned at the bottom of the rear chamber and includes a hinge connection part that is hinge-coupled to the bottom of the handle part, the hinge connection part is configured to allow the handle part to rotate and includes a moving pin and a rotating spring to maintain a certain range when rotated, the moving pin is guided by a switching guide fixed to the rear chamber, and the switching guide may include a guide groove that limits the rotation range of the hinge connection part.

[0017] Additionally, the above-mentioned moving means includes a wheel and a wheel module that rotatably supports the wheel, and the wheel module includes a wheel module button, a wheel module spring, a wheel module pin, and a pin fixing member, and when a certain pressure is applied to the wheel module button, the wheel module pin is released so that the wheel can be separated from the wheel module.

[0018] Additionally, the front chamber includes a first bumper coupled to the side opposite to the side where the locking device is formed, and the rear chamber includes a second bumper coupled to a position corresponding to the first bumper of the front chamber, and the height of the first bumper and the height of the second bumper may be different from each other.

[0019] Additionally, the front chamber includes a first moving means coupling groove formed on the lower side so that the moving means can be coupled, and the rear chamber includes a second moving means coupling groove formed on the lower side so that the moving means can be coupled in the first mode and a third moving means coupling groove formed on the outer side so that the moving means can be coupled in the second mode, wherein the third moving means coupling groove is disposed on the outer side of the rear chamber and can correspond to the coupling position of the moving means.

[0020] A convertible carrier according to another embodiment of the present invention is a convertible carrier capable of switching between a first mode and a second mode, comprising a front chamber, a rear chamber capable of being coupled with the front chamber, a handle portion connected to the rear chamber, and a moving means portion that is rotatable 360 ​​degrees and detachable, wherein the handle portion comprises a switching operation portion and a handle rotation portion that induce switching to either the first mode or the second mode, and the switching operation portion may include a switching handle capable of moving a certain distance in the longitudinal direction, a switching handle pin connected to the switching handle and moving according to the movement of the switching handle, and a switching wire connecting the switching operation portion and the handle rotation portion.

[0021] Additionally, when the switching handle moves from a first position to a second position, the switching wire moves and the moving pin rises, thereby enabling the handle rotation part to rotate, and when the switching handle returns to the first position, the moving pin lowers, thereby restricting the rotation of the handle rotation part.

[0022] Additionally, the handle rotation part includes a switching guide and a moving pin whose movement is guided along the switching guide, and the switching guide includes a guide groove that limits the rotation range of the handle rotation part, and the guide groove may be configured to limit or enable rotation of the handle rotation part by defining the range in which the moving pin can move.

[0023]

[0024] According to the present invention, by providing a convertible carrier that can be transformed between a carrier mode and a wagon mode, it has the effect of being usable in various ways according to the user's needs. While maintaining the storage and transport functions provided by a conventional carrier, it allows for loading more luggage or transporting heavy loads more conveniently by transforming into a wagon form.

[0025] In addition, the present invention hinges the rear chamber and the handle part to simplify the transformation process, and enables stable use in wagon mode through a moving pin and a fixing structure. By applying a switching operation part, the user can easily switch modes without a separate tool, and maintain a robust structure even after transformation, thereby ensuring durability.

[0026] The present invention forms the mobility unit as a detachable structure, thereby maximizing mobility in various environments. Additionally, the wheel module is designed to be easily replaceable, facilitating maintenance and further enhancing user convenience.

[0027]

[0028] FIG. 1 is a perspective view showing the overall configuration of a convertible carrier according to one embodiment of the present invention.

[0029] Figure 2 is a drawing showing a convertible carrier in the first mode (carrier mode) state.

[0030] Figure 3 is a drawing showing a convertible carrier in a second mode (wagon mode) state.

[0031] Figure 4 is a drawing for explaining the handle part.

[0032] Figure 5 is a drawing to explain the function of a handle part that can be extended in length.

[0033] Figure 6 is a drawing for explaining the handle rotation part and the switching operation part.

[0034] Figure 7 is a drawing for explaining the structure of the handle rotation part.

[0035] Figure 8 is a drawing illustrating the detachable structure of the moving means.

[0036] FIG. 9 is a drawing for explaining a structure in which a wheel module of a moving part is mounted on the lower side of a convertible carrier.

[0037] FIG. 10 is a drawing for explaining the configuration of a rubber cap inserted into a third moving means coupling groove to protect the exterior and prevent the ingress of foreign matter when the wheels are not mounted on the convertible carrier in the first mode state.

[0038] Figure 11 is a drawing illustrating a bumper section located on the side of a convertible carrier.

[0039]

[0040] Terms and words used in this specification and claims shall not be interpreted as being limited to their general or dictionary meanings. In accordance with the principle that an inventor may define the concept of a term or word to best describe their invention, they shall be interpreted in a meaning and concept consistent with the technical spirit of the invention. Furthermore, since the embodiments described in this specification and the configurations illustrated in the drawings are merely one embodiment of the invention and do not represent the entire technical spirit of the invention, it should be understood that various equivalents, modifications, and applicable examples capable of replacing them may exist at the time of filing this application.

[0041] The terms first, second, A, B, etc., as used in this specification and claims may be used to describe various components, but said components should not be limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component.

[0042] The terms used in this specification and claims are used merely to describe specific embodiments and are not intended to limit the invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, terms such as "comprising" or "having" should be understood as not precluding the existence or addition of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification.

[0043] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which this invention pertains.

[0044] Terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.

[0045] In addition, each component, process, procedure, or method included in each embodiment of the present invention may be shared within a scope that is not technically contradictory to one another.

[0046]

[0047] FIG. 1 is a perspective view showing the overall configuration of a convertible carrier (100) according to one embodiment of the present invention. A convertible carrier (100) according to some embodiments of the present invention may be designed to enable switching between a first mode (Carrier mode) and a second mode (Wagon mode). The convertible carrier (100) may include a front chamber (110) providing internal storage space, a rear chamber (120), a handle portion (130), and a moving means portion (140), etc. The front chamber (110) and the rear chamber (120) may be combined with each other to provide internal storage space. According to some embodiments, the front chamber (110) may provide a storage space with a larger capacity than the rear chamber (120), but the embodiments are not limited thereto. For example, the rear chamber (120) may provide a storage space with a larger capacity than the front chamber (110), or the front chamber (110) and the rear chamber (120) may provide storage space with the same capacity. The capacity of the storage space of the front chamber (110) and the rear chamber (120) can vary depending on the design of the convertible carrier (100).

[0048] The front chamber (110) includes a front frame (21) to ensure structural rigidity and includes a structure for joining with the rear chamber (120). The front frame (21) can be made of various materials, for example, aluminum alloy, stainless steel, or a highly durable composite material. Additionally, a rubber packing (22) may be placed between the front frame (21) and the rear chamber (120) to ensure airtightness, thereby providing waterproof and dustproof effects. The rear chamber (120) includes a rear frame (23) and can be designed to join with the front chamber (110).

[0049] The convertible carrier (100) includes a means of movement (140) to provide the user with mobility convenience, and the means of movement (140) includes a wheel (141) and a wheel module (142) to enable smooth movement on the ground. The means of movement (140) is positioned at the bottom of the front chamber (110) and the rear chamber (120) or on the outer side of the rear chamber (120), and the means of movement (140) includes a wheel (141) and a wheel module (142), and the wheel (141) can be designed to be detachable as needed. To this end, the wheel module (142) includes a wheel module button (142a) and a wheel module spring (142b), and can be configured so that the wheel (141) can be detached when the user presses the wheel module button (142a). The wheel module (142) can be fastened to the moving means coupling grooves (111, 121, 122) of the front chamber (110) and the rear chamber (120), and fastening methods may include bolt fastening, rivet fastening, or a snap fit structure.

[0050] The handle portion (130) is configured to allow a user to tow the convertible carrier (100) and may be adjustable in length by being composed of an inner handle pipe (132) and an outer handle pipe (133). The lower part of the handle portion (130) and the handle rotation portion (131) are hinge-connected so that the user can rotate or fix the handle portion (130) at a specific angle, and switching between a first mode and a second mode may be possible depending on the rotation and fixation of the handle portion (130). According to some embodiments, the handle portion (130) may include a switching operation portion (135) capable of controlling the switching between the first mode and the second mode. The switching operation portion (135) may include a switching handle (135a), a switching handle pin (135b), and a switching wire (135c). When a user operates the switching handle (135a), the switching wire (135c) moves, and the switching handle pin (135b) and the moving pin (131d) can be configured to rise or fall. At this time, the movement of the moving pin (131d) can be guided by the switching guide (131e) of the handle rotation part (131).

[0051] In one embodiment, switching between a first mode and a second mode is possible through the switching operation unit (135). In the first mode (carrier mode), the handle unit (130) is extended vertically so that the user can hold the handle unit (134) and move like a carrier. When the switching operation unit (135) is not operating, the moving pin (131) is seated in the first guide groove of the switching guide (131e) and remains fixed, thereby allowing the user to stably tow the carrier. Here, the guide groove may be used to include the first guide groove and the second guide groove.

[0052] To switch from the first mode (carrier mode) to the second mode (wagon mode), the user can operate the switching handle (135a) of the switching operation unit (135) to cause the moving pin (131d) to detach from the first guide groove of the switching guide (131e). When the moving pin (131d) detaches from the first guide groove of the switching guide (131e), the moving pin (131d) can move along the switching guide (131e) between the first guide groove and the second guide groove. That is, when the handle rotation unit (131) rotates beyond a certain angle range, the moving pin (131d) settles into the second guide groove of the switching guide (131e), and unless the switching operation unit (135) operates again, it remains in a fixed state, allowing the user to stably tow the carrier. That is, in some embodiments, the state in which the movable pin (131d) is seated in the first guide groove may be considered as the first mode (carrier mode), and the state in which the movable pin (131d) is seated in the second guide groove may be considered as the second mode (wagon mode). The transition between the first mode (carrier mode) and the second mode (wagon mode) will be explained in more detail later.

[0053] The convertible carrier (100) may include a hinge (30), a handle (40), and a support frame (50, 51) to ensure structural rigidity and improve user convenience. The hinge (30) serves to connect the front chamber (110) and the rear chamber (120), thereby allowing the two chambers to be firmly joined. The hinge (30) may be made of metal or a high-strength composite material, and fastening methods may include rivet fastening, bolt fastening, welding, or bonding. The handle (40) is positioned on the upper surface of the rear chamber (120) and allows the user to conveniently use it when lifting or moving the convertible carrier (100). Additionally, the support frame (50, 51) is positioned inside the rear chamber (120) to reinforce the rigidity of the main body and may be designed to minimize deformation even under external impact. The support frame (50, 51) may be made of aluminum alloy, stainless steel, or carbon fiber composite and may be configured to be positioned along the internal structure of the rear chamber (120) to increase overall durability.

[0054] The convertible carrier (100) may include a bumper portion (150) for protection from external impact, and the bumper portion (150) may be positioned on the outer edge of the front chamber (110) and the rear chamber (120). Additionally, the bumper portion (150) may be positioned on the opposite side of the front chamber (110) and the rear chamber (120) where the locking device (61, 62) is positioned. Furthermore, the bumper portion (150) may serve to secure the convertible carrier (100) to the ground so that the moving means portion (140) can be easily attached and detached for switching between the first mode (carrier mode) and the second mode (wagon mode). The bumper portion (150) may be composed of a shock-absorbing material, for example, EVA (Ethylene-Vinyl Acetate), TPU (Thermoplastic Polyurethane), silicone, or synthetic rubber may be used. Additionally, the convertible carrier (100) may include a locking device (61, 62) to maintain security of the internal storage space. The locking device (61, 62) maintains the connection between the front chamber (110) and the rear chamber (120), and the locking method may be a mechanical lock, an electronic lock, or a magnetic method.

[0055] In this way, the convertible carrier (100) of the present invention can be designed to include various functions considering the user's mobility convenience, and can maximize practicality by including a mode switching function, a detachable moving part, and an internal frame structure that reinforces rigidity.

[0056]

[0057] FIG. 2 is a drawing showing a convertible carrier (100) in a first mode (carrier mode) state.

[0058] A convertible carrier (100) according to some embodiments of the present invention may be configured to be used in the form of a general carrier in a first mode. The convertible carrier (100) includes a front chamber (110) and a rear chamber (120), and these chambers may be combined to provide an internal storage space. The rear chamber (120) may be combined with a handle portion (130) and a moving means portion (140), thereby allowing the user to easily move through the first mode (carrier mode).

[0059] The handle portion (130) is positioned in a concave receiving portion formed on the outer surface of the rear chamber (120) and can be designed to maintain a sense of unity with the exterior of the carrier while considering user operability. The handle portion (130) includes an inner handle pipe and an outer handle pipe, and can be configured so that the user can adjust the length of the handle as needed. The inner handle pipe can be positioned to slide longitudinally within the outer handle pipe, and a T-shaped handle portion including an extension button for length adjustment can be attached to the top. Additionally, the handle portion (130) is connected to the rear chamber (120) through a hinge connection and can be designed to rotate at a certain angle.

[0060] The mobility unit (140) is positioned at the bottom of the convertible carrier (100) and can be configured to be movable in the first mode. The mobility unit (140) includes a wheel that can rotate 360 ​​degrees, and the wheel can be designed to be positioned at the bottom corners of the front chamber (110) and the rear chamber (120) to maintain overall balance. Additionally, the mobility unit (140) can be configured to be detachable through the operation of a wheel module button, and can be designed to be easily replaced as needed by including a wheel module pin, a spring, and a separate coupling structure.

[0061] When the convertible carrier (100) is used in the form of a normal carrier in the first mode, the position of the handle part (130) and the moving part (140) is optimized to maximize user convenience, and it can be designed to ensure durability against external impact.

[0062]

[0063] FIG. 3 is a drawing showing a convertible carrier (100) in a second mode (wagon mode) state.

[0064] A convertible carrier (100) according to some embodiments of the present invention may be configured to be used in a wagon form in a second mode. In the second mode, the rear chamber (120) is positioned horizontally on the ground, and the handle portion (130) is rotated and lengthened so that the user can pull or push it. This allows for more convenient transport while maintaining the storage function of the carrier.

[0065] The handle portion (130) is positioned in a receiving portion formed on the outer surface of the rear chamber (120) and can be configured to rotate at a certain angle in the second mode to enable use in wagon mode. The handle portion (130) includes a hinge connection portion and can rotate up to 240 degrees through a switching guide of the handle rotation portion. Additionally, it can be designed to include an inner handle pipe and an outer handle pipe so that the user can adjust the length up to 220 mm as needed. Length adjustment can be achieved by operating an extension button included in the handle portion, and can provide optimal operability depending on the user's height and movement situation. Additionally, the rotation angle of the handle portion (130) can be rotated more than 240 degrees depending on the design, and the length of the handle portion (130) can also be extended more than 220 mm.

[0066] The moving means (140) may be positioned on the side of the rear chamber (120) of the convertible carrier (100) and configured to enable movement in a second mode. The moving means (140) may include a wheel that can rotate 360 ​​degrees and may be configured to allow the user to smoothly change direction. Additionally, a locking device for securing the wheel under specific conditions may be added, thereby enabling use on slopes or irregular terrain.

[0067] In some embodiments, when the convertible carrier (100) is transformed into a wagon form in the second mode, it can provide an optimized carrying method in various usage environments through the rotation and length adjustment functions of the handle portion (130). Additionally, the convertible carrier (100) can be configured to allow multiple carriers to be connected and carried in the second mode (wagon mode). As shown in FIG. 3, by positioning the upper surface of the rear chamber (120) horizontally, another convertible carrier (100) of the same structure can be stacked or mounted on top, and the carrier located at the top can be configured to be pulled together through the handle portion (130) of the lower carrier. Such a structure allows the user to carry two or more carriers simultaneously and can be configured to enable efficient movement even when there is a large amount of luggage during travel or business trips.

[0068] Additionally, when switching to the second mode (wagon mode), the mounting position of the transport unit (140) can be changed from the lower side of the rear chamber (120) to the outer side (side wall), thereby distributing the center of gravity more widely and reducing the risk of overturning during transport. Since the transport unit (140), including the wheels, is detachable, the user can adjust the position and number of wheels according to the situation. For example, in the first mode, four wheels are placed on the lower side to ensure stability for upright movement, and in the second mode, four wheels are placed on the side to distribute weight over a wide axle distance, allowing for horizontal movement even when the handle is rotated. This flexible configuration of wheel positions allows for optimal stability to be secured through appropriate wheel placement according to the carrier usage environment (e.g., stairs, unpaved roads, slopes, etc.), and improves functional efficiency when switching modes.

[0069]

[0070] FIG. 4 is a drawing for explaining the handle part (130), and FIG. 5 is a drawing for explaining the function of the handle part (130) that can be extended in length.

[0071] A convertible carrier (100) according to some embodiments of the present invention is configured to be convertible into a first mode (carrier mode) and a second mode (wagon mode), and a handle portion (130) may be a key element for facilitating such mode switching. The handle portion (130) is positioned in a concave-shaped receiving portion formed on the outer surface of the rear chamber (120) and may be configured to be adjustable in length by including an inner handle pipe (132) and an outer handle pipe (133). Additionally, a T-shaped handle portion (134) may be included at the top of the handle portion (130) to allow a user to grasp and move it with their hand.

[0072] In one embodiment, the handle portion (130) is configured to be slidable in the longitudinal direction, and the user can adjust the length of the handle by operating an extension button (134a) included in the handle portion (134). Additionally, as shown in FIG. 5, the handle portion (130) can be adjusted in stages according to the operation of the extension button (134a), and depending on the structure of the grooves formed in the inner and outer handle pipes (132, 133), the first stage of extension can be configured to be approximately 120 mm, and the second stage of extension can be configured to be approximately 100 mm. At this time, the stages are defined according to the order of extension and may not be proportional to the length. When the extension button (134a) is pressed, the locking structure that fixes the inner handle pipe (132) and the outer handle pipe (133) is released. Here, the locking structure can provide smooth sliding by causing the fixed protrusions on both sides to contract inward when adjusting the length. Through this, the user can extend or shorten the handle to the desired length, and the handle part (130) can be extended up to 220mm through 1 step and 2 steps.

[0073] Additionally, the handle portion (130) may be configured to be rotatable from the handle rotation portion (131) configured at the bottom of the rear chamber (120) in the second mode (wagon mode). The handle portion (130) may be hinge-coupled to the handle rotation portion (131), and when the user rotates the handle portion (130), it may be rotatable up to 240 degrees by the handle rotation portion (131). Through this, the convertible carrier (100) can be switched between the first mode (carrier mode) and the second mode (wagon mode), and can support the user in conveniently pulling or pushing the carrier.

[0074] Additionally, a switching operation unit (135) may be included to control the movement and rotation of the handle unit (130). The switching operation unit (135) performs the role of determining whether the handle unit (130) moves in the longitudinal direction and rotates, and may include a switching handle, a switching handle pin, and a switching wire inside. When a user operates the switching handle, the switching wire connected to the switching handle pin moves, causing the moving pin to move up and down, the rotation spring is compressed, and the moving pin rises in the longitudinal direction, thereby controlling the rotation of the handle unit (130) along the switching guide.

[0075] As a result, the handle portion (130) shown in FIGS. 4 and 5 is designed to adjust its length according to the user's needs and to be rotatable in a specific mode, thereby maximizing the multifunctionality of the convertible carrier (100).

[0076]

[0077] FIG. 6 is a drawing for explaining the handle rotation part (131) and the switching operation part (135).

[0078] According to some embodiments of the present invention, a convertible carrier (100) may include a handle rotation part (131) and a switching operation part (135) to control the rotation of a handle part (130). The handle rotation part (131) is positioned at the bottom of the rear chamber (120) and may be configured so that the handle part (130) can rotate through a hinged structure. The handle rotation part (131) may include a hinge connection part (131a) and a switching guide (131e), and the hinge connection part (131a) may include a rotation fixing part (131b), a rotation spring (131c), and a moving pin (131d).

[0079] The handle rotation part (131) can adjust the rotation range using a movable pin (131d) and a switching guide (131e) so that the handle part (130) can rotate when the first mode (carrier mode) is converted to a second mode (wagon mode). The movable pin (131d) moves along the switching guide (131e) to adjust the rotation angle of the handle part (130), and the rotation spring (131c) can be configured so that the movable pin (131d) can descend to be fixed in the first and second guide grooves of the switching guide (131e) by means of elastic force.

[0080] The switching operation unit (135) is positioned at a certain distance along the longitudinal direction from the top of the handle unit (130) and can serve to control the rotational state of the handle rotation unit (131). Additionally, the switching operation unit (135) may include a switching handle (135a) capable of moving a certain distance along the longitudinal direction for switching between a first mode and a second mode, a switching handle pin (135b) connected to the switching handle and moving according to the movement of the switching handle, and a switching wire (135c). Additionally, the switching handle pin (135b) and the moving pin (131d) may be connected through the switching wire (135c). According to some embodiments, when a user pulls the switching handle (135a) in the upward direction, the switching handle pin (135b) moves upward, and accordingly, the switching wire (135c) is pulled and the moving pin (131d) can rise. When the moving pin (131d) rises, the handle rotation part (131) can be rotated, and as the moving pin (131d) moves from the first guide groove to the second guide groove and is fixed, the convertible carrier (100) can be switched from the first mode (carrier mode) to the second mode (wagon mode).

[0081] In another embodiment, it is also possible to switch from the second mode (wagon mode) to the first mode (carrier mode). When the user releases the switching handle (135a), the switching handle pin (135b) moves downward to return to its original position, and the switching wire (135c) can also move to its original position. Accordingly, the moving pin (131d) descends into the first guide groove, thereby restricting the rotation of the handle rotation part (131), and the handle part (130) can be fixed for the first mode (carrier mode).

[0082] Additionally, when the switching handle (135a) is in the first position, the moving pin (131d) enters the first guide groove or the second guide groove of the switching guide (131e) and is fixed so that it cannot move, and when the switching handle (135a) is in the second position, the moving pin (131d) is positioned outside the first guide groove or the second guide groove and can move along the switching guide (131e). More specifically, the first position may refer to the position when the switching handle pin (135b) is lowered, and accordingly, the moving pin (131d) may also be lowered and fixed by the first guide groove or the second guide groove of the switching guide (131e). The second position refers to the position when the switching handle pin (135b) is raised, and accordingly, the moving pin (131d) is also raised so that it is not fixed in the first guide groove or the second guide groove of the switching guide (131e), and the position is guided so that the moving pin (131d) can move.

[0083] As illustrated in FIG. 6, the handle rotation part (131) and the switching operation part (135) operate in conjunction, and the rotation of the handle part (130) can be controlled according to the user's operation. Through this, the convertible carrier (100) can be configured to easily switch between a first mode (carrier mode) and a second mode (wagon mode) according to the user's requirements.

[0084]

[0085] Figure 7 is a drawing for explaining the structure of the handle rotation part (131).

[0086] A handle rotation part (131) according to some embodiments of the present invention is configured to enable the handle part (130) to rotate by hinge-connecting it to the rear chamber (120), and may include a hinge connection part (131a), a switching guide (131e), and a rotation part cover (131f). The hinge connection part (131a) may include a hinge fixing member (131b), a rotation spring (131c), and a moving pin (131d). This configuration allows the user to easily switch modes, and each member may serve to ensure smooth rotation and fixation of the handle part (130). Additionally, the hinge connection part (131a) may be positioned at the bottom of the outer surface of the rear chamber. The hinge connection part (131a) is hinge-coupled to the lower end of the handle part, and the hinge connection part (131a) may be configured to allow the handle part (130) to rotate, and may include a moving pin (131d) and a rotating spring (131c) to maintain a certain range when rotating. The moving pin (131d) may be guided by a switching guide fixed to the rear chamber, and the switching guide (131e) may include first and second guide grooves that limit the rotation range of the hinge connection part.

[0087] When the convertible carrier (100) is in the first mode, the handle portion (130) can be fixed in close contact with the rear chamber (120), and the movable pin (131d) can be positioned in the first guide groove of the switching guide (131e) to restrict the rotation of the handle. When the user pulls the switching handle (135a) of the switching operation portion (135), the switching handle pin (135b) can move the movable pin (131d) up through the switching wire (135c). When the movable pin (131d) moves up, it moves out of the first guide groove of the switching guide (131e), and in this state, the handle portion (130) can rotate. Subsequently, when the handle portion (130) is rotated counterclockwise from the first guide groove to the second guide groove, the handle portion (130) moves to a certain rotation angle (e.g., 240 degrees) and can be switched to the second mode state.

[0088] To return from the second mode to the first mode, the user can switch from the second mode to the first mode by rotating the handle portion (130) clockwise from the second guide groove to the first guide groove. The rotation spring (131c) can provide a restoring force so that the moving pin (131d), which was raised by the handle portion (130), moves downward and returns. At this time, the moving pin (131d) can be re-inserted into the first guide groove of the switching guide (131e), and accordingly, the handle portion (130) is fixed again and the convertible carrier (100) can return to the first mode state.

[0089] The handle rotation part (131) prevents unnecessary movement when switching modes and can maintain an accurate rotation angle. Additionally, it is configured to be connected to the switching operation part (135) so that the user can operate it simply with one hand, and it can be made of metal to increase durability. These structural features can serve as an important factor in ensuring that the convertible carrier (100) is designed to be user-friendly and can be used stably in various environments.

[0090] In addition, bolt fastening, rivet fastening, or snap fit structures may be applied as the fastening method between the handle part (130) and the rear chamber (120).

[0091]

[0092] FIG. 8 is a drawing for explaining the detachable structure of the moving means part (140).

[0093] This is a drawing specifically showing the configuration of a moving means part (140) provided in a convertible carrier (100) according to some embodiments of the present invention. It may include a wheel structure that is detachable and can rotate freely 360 degrees to ensure stability and convenience when a user moves. The moving means part (140) is configured around a wheel (141) and a wheel module (142) that supports it. The wheel module (142) may be coupled with a moving means coupling groove (111, 121, 122) and mounted on the lower side of the front chamber (110) and the rear chamber (120), or on the outer side of the rear chamber (120). Here, the moving means coupling groove may refer to a first moving means coupling groove, a second moving means coupling groove, and a third moving means coupling groove. The first moving means coupling groove (111) may be positioned on the lower side of the front chamber (110), the second moving means coupling groove (121) may be positioned on the lower side of the rear chamber (120), and the third moving means coupling groove (122) may be positioned on the outer side of the rear chamber (120). Additionally, the moving means coupling grooves (111, 121, 122) may correspond to the coupling positions of the moving means part (140). For the convertible carrier (100) to be used in the first mode (carrier mode), the moving means part (140) may be coupled to the first moving means coupling groove (111) and the second moving means coupling groove (121), and for the second mode (wagon mode), the moving means part (140) may be coupled to the third moving means coupling groove (122).

[0094] The wheel module (142) may include a wheel module button (142a), a wheel module spring (142b), a wheel module pin (142c), a pin fixing member (142d), etc., and the axle contact portion (143) of the wheel (141) may be formed by a metal insert injection molding method to ensure both durability and rotational force simultaneously. When a user presses the wheel module button (142a), that is, when a certain pressure is applied to the button, the internally mounted spring (142b) may be compressed, and accordingly, the wheel module pin (142c) fixed to the pin fixing member (142d) may be released. As a result, the wheel (141) may be separated from the wheel module (142).

[0095] The wheel module button (142a) is structured to take into account the height and diameter of the wheel. According to one embodiment, in the example of FIG. 8, physical specifications such as an outer diameter of about 48 mm, an inner diameter of 25 mm, a protrusion distance of about 5.5 mm from the wheel module button (142a) from the moving means coupling groove (111, 121, 122), and an overall height of about 44 mm coupled to the moving means coupling groove (111, 121, 122) may be taken into account. The wheel module button (142a) may include a wheel axle coupling groove in the inner center to which the wheel (141) axle can be coupled. The wheel module (142) can be fastened to the means of transport coupling grooves (111, 121, 122) with M4 size bolts (3EA), and the means of transport coupling grooves (111, 121, 122) can be fastened to the front chamber or the rear chamber, respectively, with M4 size bolts (3EA). This fastening can be done in various ways, such as screw fastening or rivet fastening. Additionally, a corresponding screw part is provided between the assembly part fixed to the carrier body and the wheel module so that the wheel module can be quickly attached and detached.

[0096] The moving means (140) includes a wheel (141) that can rotate 360 ​​degrees, thereby allowing the convertible carrier (100) to move smoothly in various directions, and the detachable structure of the wheel module can provide flexibility to selectively adjust the arrangement and number of wheels according to the first mode or the second mode as needed by the user. For example, in the first mode (carrier mode), wheels (141) are attached to the lower sides of the front chamber (110) and the rear chamber (120) to enable normal upright movement, and in the second mode (wagon mode), wheels (141) are mounted on the outer side of the rear chamber (120) to enable horizontal movement. In the first mode (carrier mode) and the second mode (wagon mode), a plurality of moving means are combined, and as shown in FIGS. 2 and 3, four moving means are combined in each of the first mode and the second mode, but the number of moving means can be adjusted depending on the situation.

[0097] The moving means (140) of the convertible carrier (100) can be attached to the lower side of the carrier, that is, the lower side of the front chamber (110) or the rear chamber (120), and can be configured to be freely detachable or replaceable depending on the user's needs or usage environment. The moving means (140) may include a caster-shaped wheel (141) and a wheel module (142) that supports it, and the wheel module (142) may be fixed to the carrier body by a screw (M4) fastening method. The wheel module (142) may include a wheel module button (142b), a spring, a wheel module pin (142c), a pin fixing member (142d), etc., and the wheel module pin (142c) may be attached to a groove on the upper part of the wheel (141) to enable fixing and attachment. When the user presses the wheel module button (142b), the internal spring is compressed and the wheel module pin (142c) moves upward, thereby releasing the fixation and allowing only the wheel (141) to be separated from the wheel module (142). This structure allows the wheel (141) to be replaced or maintained independently, and can be configured so that the convertible carrier (100) can move in a first mode or a second mode by attaching or detaching the wheel (141).

[0098] Accordingly, the structure of the means of transport (140) provides structural flexibility that can be modified according to the usage mode of the carrier, while also enabling easy attachment and detachment of the wheels and durable rotation, thereby providing the user with stable mobility and ease of operation in various environments.

[0099]

[0100] FIG. 9 is a drawing for explaining a structure in which a wheel module (142) of a moving means (140) is mounted on the lower side of a convertible carrier (100).

[0101] Referring to FIG. 9, the means of transport (140) may be mounted in a detachable manner on the lower side of the front chamber (110) and the rear chamber (120) so that the convertible carrier (100) can function as a means of transport in the first mode. The means of transport (140) may include a wheel (141) and a wheel module (142) that rotatably supports the wheel. The wheel module (142) may be composed of a button, spring, pin, etc., and may be designed so that the user can easily detach the wheel (141), and the wheel can be independently separated to replace or repair.

[0102] These wheel modules (142) can be mounted on the lower side of the rear chamber (120) and can be firmly fixed by means of means of connection grooves (111, 121, 122) and a wheel outer cover (144). The means of connection grooves (111, 121, 122) are in direct contact with the wheel modules (142) and can be fixed integrally with the wheel modules, for example by a bolt fastening method, and the wheel outer cover (144) is fixed to the lower side of the front chamber (110) and the rear chamber (120) together with the means of connection grooves (111, 121, 122) to prevent shaking or separation of the wheel modules (142) in a double structure. Here, the outer cover member coupled to the front chamber (110) and the outer cover member coupled to the rear chamber (120) of the wheel outer cover (144) may be the same, but depending on the situation, different outer cover members for the wheel may be used to be coupled to the front chamber (110) and the rear chamber (120), respectively. Additionally, in FIG. 9, three fastening parts (M4 bolts) may be arranged between the moving means coupling grooves (111, 121, 122) and the wheel module (142), and four fastening parts may be arranged between the outer cover (144) and the moving means coupling grooves (111, 121, 122) to provide a fixed structure.

[0103] Additionally, the wheel module (142) can be designed with a structure that has enhanced durability so as to withstand repeated attachment and detachment and external impacts without deformation. In particular, the wheel axle contact portion (143) to which the wheel axle is connected can be formed by a metal insert injection molding method, and can provide strong durability against repeated rotational friction and loads that occur when connected to the wheel (141). This metal insert structure is resistant to cracking and wear compared to using plastic material alone, and has the advantage of maintaining rotational performance even during long-term use. In addition, the wheel module pin (142c) and the pin fixing member (142d) can be composed of high-strength alloy or reinforced plastic, etc., to maintain structural reliability even under impact and pressure. This durability-reinforcing structure enables the convertible carrier (100) to maintain excellent performance even in environments involving long-term movement or repeated attachment and detachment, and allows driving without the wheels separating or coming off.

[0104] With this configuration, the convertible carrier (100) can be used by easily attaching the wheel module (142) when movement is required, and maintenance can be performed by detaching only the wheel (141) as needed. In addition, the wheel module (142) is configured with a left-right symmetrical structure so that it can be installed in the same way on either the front or the rear of the carrier, thereby ensuring both production efficiency and user convenience.

[0105]

[0106] FIG. 10 is a drawing for explaining the configuration of a rubber cap (123) inserted into a third moving means coupling groove (122) to protect the exterior and prevent foreign matter from entering when the wheels are not mounted on the convertible carrier (100) in the first mode state.

[0107] In the first mode of the convertible carrier (100), the moving means part (140) is mounted on the lower side of the front chamber (110) and the rear chamber (120), and wheels may not be mounted on the outer side of the rear chamber (120). In this case, the third moving means coupling groove (122), which is the location where wheels are not mounted, may be exposed to the outside, and there is a risk that foreign matter may enter or the third moving means coupling groove (122) may be damaged by external impact.

[0108] To prevent this, a rubber cap (123) may be inserted into the third moving means coupling groove (122). The rubber cap (123) may be designed to adhere closely to the inside of the third moving means coupling groove (122) using elastic force, and can maintain fixing force while being easily detachable. The rubber cap (123) may include a support protrusion inside and may be inserted to fit the shape of the third moving means coupling groove (122) to act as a protective structure for the coupling groove when the wheel is not in use. Additionally, in the second mode (wagon mode), when the wheel is not in use in the first and second moving means coupling grooves (111, 121), the rubber cap (123) may be inserted into the first and second moving means coupling grooves (111, 121) and used for protective purposes for the first and second moving means coupling grooves (111, 121).

[0109] This configuration ensures both ease of use and durability by maintaining a neat appearance when the convertible carrier (100) is operated without wheels, blocking the entry of foreign matter, and allowing it to be easily removed even when the wheel module (142) is installed later.

[0110]

[0111] FIG. 11 is a drawing for explaining a bumper portion (150) located on the side of a convertible carrier (100).

[0112] Referring to FIG. 11, the convertible carrier (100) switches between a first mode and a second mode and may be exposed to physical impact depending on various ground conditions or usage environments, so a bumper part (150) may be provided as a structure to protect the main body from external impact. The bumper part (150) may include a first bumper (151) and a second bumper (152). The first bumper (151) may be located on the side opposite to the side where the locking device of the front chamber (110) is located, and the second bumper may be located on the same side at a position corresponding to the first bumper (151).

[0113] The first bumper (151) can be attached to the side of the front chamber (110) and, together with the second bumper (152) attached to the side of the rear chamber (120), can serve to protect the side corners of the entire carrier. In particular, as shown in FIG. 11, the first bumper (151) and the second bumper (152) may use the same member, but the curvature or shape of the front chamber (110) and the rear chamber (120) may be configured differently, so that the first bumper (151) and the second bumper (152) members with different heights may be used to level with the ground.

[0114] The bumper, configured at different heights in this manner, provides self-support and balance by allowing the carrier to remain level with respect to the ground even when used in the first mode (carrier mode) or the second mode (wagon mode). In particular, it can perform an auxiliary function to enable the carrier to be mounted without tilting, even when multiple transport units have been removed or installed in an unbalanced position. As a result, users can stand or carry the carrier more stably regardless of the external environment, and the design of the bumper can also contribute to improved safety and durability during actual use.

[0115] These bumper parts (150) may be made of a shock-absorbing material such as rubber or elastic resin, and effectively disperse external shocks to prevent damage to the carrier body, and can maintain a horizontal position relative to the ground by using a first bumper (151) and a second bumper (152) of different heights. Additionally, each bumper may be configured to be firmly attached to the outer surface of the chamber through fastening means such as rivets, screws, or clips.

[0116] As a result, the configuration of the bumper part (150) is designed to improve the durability of the carrier and minimize impact or damage that may be applied to the main body during various mode switching processes, thereby enhancing the overall stability and reliability of the convertible carrier (100).

[0117]

[0118] The above description is merely an illustrative explanation of the technical concept of the present embodiment, and a person skilled in the art to which the present embodiment belongs would be able to make various modifications and variations within the scope of the essential characteristics of the present embodiment. Accordingly, the present embodiments are intended to explain, not limit, the technical concept of the present embodiment, and the scope of the technical concept of the present embodiment is not limited by these embodiments. The scope of protection of the present embodiment shall be interpreted by the claims below, and all technical concepts within an equivalent scope shall be interpreted as being included within the scope of rights of the present embodiment.

Claims

1. A convertible carrier capable of switching between a first mode and a second mode, Front chamber; A rear chamber capable of being combined with the front chamber above; A handle portion connected to the rear chamber above; and It includes a movable means that is rotatable 360 ​​degrees and detachable, The above handle part is, A convertible carrier comprising a handle rotation part positioned at the bottom of the outer surface of the rear chamber, hinged to the rear chamber to enable rotation, and capable of switching between the first mode and the second mode.

2. In Paragraph 1, The above handle part is, It is located in a concave receiving portion formed on the outer surface of the rear chamber, and An inner handle pipe positioned to slide in the longitudinal direction; An outer handle pipe formed in a structure surrounding the inner handle pipe; and A convertible carrier comprising a T-shaped handle portion coupled to the upper end of the inner handle pipe and including an extension button for length adjustment.

3. In Paragraph 1, The above handle part is, It includes a switching operation part formed by being positioned at a certain distance along the longitudinal direction from the top of the above handle part, and The above switching operation unit is, For switching between the first mode or the second mode, the switching handle capable of moving a certain distance in the longitudinal direction, a switching handle pin connected to the switching handle and moving according to the movement of the switching handle, a moving pin whose movement is guided through a switching guide, and a switching wire connecting the switching handle pin. A convertible carrier in which, when the switching handle is in the first position, the moving pin cannot move along the switching guide, and when the switching handle is in the second position, the moving pin can move along the switching guide.

4. In Paragraph 1, The above handle rotation part is, It includes a hinge connecting part disposed at the bottom of the rear chamber and hinge-coupled to the bottom of the handle part, The above hinge connection part is, The above handle portion is configured to be rotatable and includes a moving pin and a rotating spring to maintain a certain range when rotated, The above moving pin is, Guided by a transition guide fixed to the rear chamber above, The above transition guide is, A convertible carrier including a guide groove that limits the rotational range of the hinge connection part.

5. In Paragraph 1, The above-mentioned moving means is, wheels and, It includes a wheel module that rotatably supports the above wheel, The above wheel module is, It includes a wheel module button, a wheel module spring, a wheel module pin, and a pin fixing member, When a certain amount of pressure is applied to the wheel module button above, A convertible carrier in which the wheel module pin is released, and the wheel is separated from the wheel module.

6. In Paragraph 1, The above front chamber is, It includes a first bumper coupled to the side opposite to the side on which a locking device is formed, The above rear chamber is, It includes a second bumper coupled at a position corresponding to the first bumper of the front chamber, and The height of the first bumper and the height of the second bumper are different for the convertible carrier.

7. In Paragraph 1, The above front chamber is, It includes a first moving means coupling groove formed on the lower side so that the above moving means part can be coupled, The above rear chamber is, It includes a second moving means coupling groove formed on the lower side so that the moving means part can be coupled in the first mode, and a third moving means coupling groove formed on the outer side so that the moving means part can be coupled in the second mode. The above-mentioned third moving means coupling groove is, A convertible carrier positioned on the outer surface of the rear chamber and corresponding to the coupling position of the moving means.

8. A convertible carrier capable of switching between a first mode and a second mode, Front chamber; A rear chamber capable of being combined with the front chamber above; A handle portion connected to the rear chamber above; and It includes a movable means that is rotatable 360 ​​degrees and detachable, The handle portion includes a switching operation portion and a handle rotation portion that induce a switching to either the first mode or the second mode. The above switching operation unit is, A switching handle capable of moving a certain distance in the longitudinal direction; A switching handle pin connected to the switching handle and moving according to the movement of the switching handle; and A convertible carrier including a switching wire connecting the switching operation part and the handle rotation part.

9. In Paragraph 8, The above switching operation unit is, When the above switching handle moves from the first position to the second position, As the above-mentioned switching wire moves and the above-mentioned moving pin rises, the above-mentioned handle rotating part can rotate, and A convertible carrier in which, when the switching handle returns to the first position, the moving pin descends to restrict the rotation of the handle rotation part.

10. In Paragraph 8, The above handle rotation part is, It includes a transition guide and a movement pin whose movement is guided along the transition guide, and The above transition guide is, It includes a guide groove that limits the rotation range of the handle rotation part, and The above guide home is, A convertible carrier configured such that the rotation of the handle rotation part is restricted or enabled by defining the movable range of the above-mentioned movable pin.

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