Bearing device and vehicle capable of bearing carrier

Abstract

The invention discloses a bearing device and a vehicle capable of bearing a carrier. The carrying device can be mounted on a first carrier to carry a second carrier, and comprises: a support member having a plurality of receiving elements to support the second carrier; and a support arm member coupled with the support member and located between the plurality of receiving elements. The support arm member further comprises: a carrier element configured to hold the second carrier; a first rotation element coupled with the bearing element and configured to rotate the bearing element along a first rotation axis; the first locking element is configured to control whether the first rotating element is allowed to rotate the bearing element along the first rotating shaft or not; and a cylinder element coupled with the first rotation element and the pivot control element of the support member. The pivot control element is perpendicular to the first axis of rotation, and the post element pivotably rotates about the pivot control element of the support member to allow the arm member to rotate between loading and unloading positions.

Description

Technical Field

[0001] The present invention relates to a carrying device and a vehicle, and more particularly, to a vehicle capable of carrying a vehicle. Background Art

[0002] The development of carrying devices (such as bicycle frames) for carrying items and mounting on vehicles is proceeding rapidly. Generally, a rear-mounted load-carrying device can be configured as a bicycle frame for carrying one or more bicycles. However, the emergence of a new type of electric bicycle (e-bike) in recent years has created a need for a new type of bicycle frame. These new e-bikes are heavier than traditional bicycles and are more difficult to load onto a bicycle frame. In addition, due to the battery integration within the bicycle frame, these e-bikes are also wider than traditional bicycles.

[0003] Therefore, it is becoming increasingly important to provide a technical solution to assist users in loading bicycles. A ramp device for loading a bicycle against its wheels can be a solution. However, the use of a ramp device is still difficult because the vertical arms of a bicycle frame may obstruct the movement of the bicycle. Therefore, different types of bicycle frames are still in demand to enable users to easily and effortlessly load a bicycle onto a vehicle.

[0004] Furthermore, when a vehicle brakes suddenly or accelerates rapidly, objects on the vehicle tend to tilt forward or slide backward due to inertia. Therefore, when a bicycle is loaded onto a vehicle (e.g., on the top or back of the vehicle), the bicycle also tends to tilt or slide due to inertia. In addition, since an e-bike is much heavier than a traditional bicycle, the degree of forward tilting or backward sliding of an e-bike due to inertia will be greater than that of a traditional bicycle. Therefore, different types of bicycle frames are also in demand to securely load a bicycle onto a vehicle. Summary of the Invention

[0005] In some embodiments of the present disclosure, a carrying device can be mounted on a first vehicle to carry a second vehicle different from the first vehicle. In addition, the carrying device can be mounted on the first vehicle to form a vehicle capable of carrying a vehicle.

[0006] In a first aspect of the present disclosure, a carrying device is provided. The carrying device can be mounted on a first vehicle to hold a second vehicle different from the first vehicle. The carrying device includes: a support member having a plurality of receiving elements for supporting the second vehicle; and an arm member coupled to the support member and located between the plurality of receiving elements. The arm member further includes: a carrying element configured to hold the second vehicle; a first rotating element coupled to the carrying element and configured to rotate the carrying element along a first rotation axis; a first locking element configured to control whether the first rotating element allows the carrying element to rotate along the first rotation axis; and a cylindrical element coupled to the first rotating element and a pivot control element of the support member, wherein the pivot control element is perpendicular to the first rotation axis, and the cylindrical element is pivotally rotatable about the pivot control element of the support member to allow the arm member to rotate between a loading position and an unloading position.

[0007] In an embodiment of the first aspect, the arm member rotates to the loading position to hold the second vehicle on the support member. When the second vehicle is being loaded onto the support member along the plurality of receiving elements, the carrying element is rotated by the first rotating element along the first rotation axis to a release position to prevent the second vehicle from contacting the arm member located at the loading position.

[0008] In another embodiment of the first aspect, the arm member further includes: a pivot rotating element coupled to the pivot control element of the support member to rotate between the loading position and the unloading position, wherein: when the second vehicle is held by the carrying element, the pivot control element of the support member limits the rotation of the pivot rotating element, and when the first vehicle is moving along a vehicle orientation, the rotation of the pivot rotating element is limited to prevent the second vehicle from shifting along the vehicle orientation.

[0009] In another embodiment of the first aspect, the arm member further includes: a height adjustment element configured to adjust an element height of the carrying element to correspond to a vehicle height of the second vehicle.

[0010] In another embodiment of the first aspect, the arm member further includes: a second locking element configured to control whether the height adjustment element allows adjustment of the element height of the carrying element, wherein the second locking element is integrally formed with or formed separately from the first locking element.

[0011] In another embodiment of the first aspect, the carrier element further comprises: a base member; and a holding member coupled to the base member, wherein the holding member is movable to tighten or loosen a tubular member of the second vehicle.

[0012] In another embodiment of the first aspect, the arm member further comprises: a second rotating element coupled to the carrier element and the first rotating element, wherein the second rotating element is rotatable to rotate the base member along a second rotation axis to adjust an orientation of the carrier element to correspond to a tubular orientation of the tubular member, wherein the second rotation axis is perpendicular to the first rotation axis.

[0013] In another embodiment of the first aspect, the arm member further comprises: a third locking element configured to control whether the second rotating element allows adjustment of the orientation of the carrier element, wherein the third locking element and the first locking element are integrally formed or formed separately.

[0014] In another embodiment of the first aspect, when the first locking element is in an unlocked state, the first rotating element is rotatable to allow the carrier element to rotate along the first rotation axis to be perpendicular to the pivot control element, and when the second vehicle is being loaded onto the support member, the carrier element is rotated along the first rotation axis to be perpendicular to the pivot control element to prevent the second vehicle from contacting the arm member.

[0015] In another embodiment of the first aspect, when the first locking element is in a locked state, the first locking element restricts rotation of the first rotating element, and when the first vehicle is moving along the vehicle orientation, rotation of the first rotating element is restricted to prevent the second vehicle from deviating along a vehicle orientation.

[0016] In another embodiment of the first aspect, the support member further comprises: a receiving element coupled to one of the plurality of receiving elements, wherein the receiving element receives the arm member when the arm member is in the unloading position.

[0017] In another embodiment of the first aspect, the support member further comprises: a rotating element coupled to one of the plurality of receiving elements, wherein the carrying device can move through the rotating element when the rotating element is placed on a surface.

[0018] In a second aspect of the present disclosure, a vehicle capable of carrying a vehicle includes: a first vehicle; and a carrying device coupled to the first vehicle to hold a second vehicle different from the first vehicle. The carrying device further includes: a support member having a plurality of receiving elements to support the second vehicle; and an arm member coupled to the support member and located between the plurality of receiving elements. The arm member further includes: a carrying element configured to hold the second vehicle; a first rotating element coupled to the carrying element and configured to rotate the carrying element along a first rotation axis; a first locking element configured to control whether the first rotating element allows the carrying element to rotate along the first rotation axis; and a column element coupled to the first rotating element and a pivot control element of the support member, wherein the pivot control element is perpendicular to the first rotation axis, and the column element is pivotally rotatable about the pivot control element of the support member to allow the arm member to rotate between a loading position and an unloading position.

[0019] In an embodiment of the second aspect, the arm member rotates to the loading position to hold the second vehicle on the support member, and when the second vehicle is being loaded onto the support member along the plurality of receiving elements, the carrying element is rotated by the first rotating element along the first rotation axis to a release position to prevent the second vehicle from contacting the arm member at the loading position.

[0020] In another embodiment of the second aspect, the arm member further includes: a pivot rotating element coupled to the pivot control element of the support member to rotate between the loading position and the unloading position, wherein: when the second vehicle is held by the carrying element, the pivot control element of the support member restricts a rotation of the pivot rotating element, and when the first vehicle is moving along a vehicle orientation, the rotation of the pivot rotating element is restricted to prevent the second vehicle from shifting along the vehicle orientation.

[0021] In another embodiment of the second aspect, the arm member further includes: a height adjustment element configured to adjust an element height of the carrying element to correspond to a vehicle height of the second vehicle.

[0022] In another embodiment of the second aspect, the arm member further includes: a second locking element configured to control whether the height adjustment element allows adjustment of the element height of the carrying element, wherein the second locking element and the first locking element are integrally formed or formed separately.

[0023] In another embodiment of the second aspect, the carrier element further comprises: a base member; and a holding member coupled to the base member, wherein the holding member is movable to tighten or loosen a tubular member of the second vehicle.

[0024] In another embodiment of the second aspect, the arm member further comprises: a second rotating element coupled to the carrier element and the first rotating element, wherein the second rotating element is rotatable to rotate the base member along a second rotation axis to adjust an orientation of the carrier element to correspond to a tubular orientation of the tubular member, wherein the second rotation axis is perpendicular to the first rotation axis.

[0025] In another embodiment of the second aspect, the arm member further comprises: a third locking element configured to control whether the second rotating element allows adjustment of the orientation of the carrier element, wherein the third locking element is integrally formed with or separately formed from the first locking element.

[0026] In another embodiment of the second aspect, when the first locking element is in an unlocked state, the first rotating element is rotatable to allow the carrier element to rotate along the first rotation axis to be perpendicular to the pivot control element, and when the second vehicle is being loaded onto the support member, the carrier element is rotated along the first rotation axis to be perpendicular to the pivot control element to prevent the second vehicle from contacting the arm member.

[0027] In another embodiment of the second aspect, when the first locking element is in a locked state, the first locking element restricts rotation of the first rotating element, and when the first vehicle is moving along the vehicle orientation, rotation of the first rotating element is restricted to prevent the second vehicle from deviating along a vehicle orientation.

[0028] In another embodiment of the second aspect, the support member further comprises: a receiving element coupled to one of the plurality of receiving elements, wherein the receiving element receives the arm member when the arm member is in the unloading position.

[0029] In another embodiment of the second aspect, the support member further comprises: a rotating element coupled to one of the plurality of receiving elements, wherein the carrying device can move through the rotating element when the rotating element is placed on a surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Aspects of the present disclosure are best understood when read in conjunction with the following detailed description with reference to the accompanying drawings. The various features are not drawn to scale and the dimensions of the various features may be arbitrarily increased or decreased for the sake of discussion clarity.

[0031] Figure 1 Schematic diagram of a vehicle-carrying vehicle including a carrying device and a first vehicle according to an exemplary embodiment of the present disclosure.

[0032] Figure 2A According to an exemplary embodiment of the present disclosure, as Figure 1 Shown is a three-dimensional structure diagram of the carrying device.

[0033] Figure 2B Schematic diagram of a carrying device coupled to a ramp member for loading a second vehicle according to an exemplary embodiment of the present disclosure.

[0034] Figure 3 According to an exemplary embodiment of the present disclosure, as Figure 2A Shown is a three-dimensional structure diagram of the first arm member.

[0035] Figure 4 According to an exemplary embodiment of the present disclosure, as Figure 3 Shown is an exploded view of the first arm member.

[0036] Figure 5 According to an exemplary embodiment of the present disclosure, as Figure 3 Shown is a partial enlarged view of area A.

[0037] Figure 6 According to an exemplary embodiment of the present disclosure, as Figure 4 Shown is a three-dimensional structure diagram of the height adjustment element.

[0038] Figure 7 According to an exemplary embodiment of the present disclosure, as Figure 3 Shown is an exploded view of the first rotating element, the carrying element, and the second rotating element.

[0039] Figure 8 According to an exemplary embodiment of the present disclosure, as Figure 1 Shown is a three-dimensional structure diagram of another carrying device.

[0040] Figure 9 According to an exemplary embodiment of the present disclosure, as Figure 8 Shown is a three-dimensional structure diagram of the first arm member.

[0041] Figure 10 According to an exemplary embodiment of the present disclosure, as Figure 9 Shown is an exploded view of the first arm member.

[0042] Figure 11 According to an exemplary embodiment of the present disclosure, as Figure 9 Shown is a partial enlarged view of area B.

[0043] Figure 12 is another perspective view of the first arm member illustrated as Figure 9 in an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0044] The following disclosure includes specific information related to the exemplary embodiments in the present disclosure. The accompanying drawings and the detailed disclosure thereof in the present disclosure are only directed to the exemplary embodiments. However, the present disclosure is not limited to these exemplary embodiments. Other variations and embodiments of the present disclosure will occur to those skilled in the art. Unless otherwise specified, the same or corresponding elements in the drawings may be denoted by the same or corresponding reference numerals. In addition, the drawings and illustrations in the present disclosure are generally not drawn to scale and do not necessarily correspond to actual relative dimensions.

[0045] For the purposes of consistency and ease of understanding, similar features are identified by numerals in the exemplary figures (although not shown in some examples). However, the features in different embodiments may differ in other respects and should not be narrowly limited to what is shown in the figures.

[0046] The present disclosure uses phrases such as "in one embodiment", "in some embodiments", etc., which may each refer to one or more of the same or different embodiments. The term "coupled" is defined as directly connected or indirectly connected through an intermediate element and is not necessarily limited to a physical connection. The term "comprising" means "comprising but not necessarily limited to" and specifically indicates an open inclusion or membership in the above combinations, groups, series, and equivalents. The terms "first", "second", "third", etc. in the specification of the present invention and the above drawings are used to distinguish different objects and not to describe a specific order.

[0047] In addition, for purposes of explanation and not limitation, specific details such as functional entities, technologies, protocols, standards, etc. are set forth to provide an understanding of the described technology. In other examples, the detailed disclosure of well-known methods, technologies, systems, architectures, etc. is omitted so as not to obscure the disclosure with unnecessary details.

[0048] Figure 1 is a schematic view of a vehicle 1 capable of carrying a vehicle including a carrying device 10 and a first vehicle 20 according to an exemplary embodiment of the present disclosure. The carrying device 10 may be coupled to the first vehicle 20 to hold a second vehicle different from the first vehicle 20. In some embodiments, the carrying device 10 may be adapted to be mounted on the first vehicle 20 and used to hold the second vehicle. In other words, the carrying device 10 is detachably mounted on the first vehicle 20. In some other embodiments, the carrying vehicle 10 may be fixedly mounted on the first vehicle 20.

[0049] In some embodiments, the first vehicle 20 can be an automobile, a truck, a bus, an off-road vehicle (ORV), etc. In addition, the first vehicle 20 can also be a gasoline vehicle, a hybrid vehicle, a plug-in electric vehicle, a hydrogen vehicle, etc. In some embodiments, the second vehicle can be smaller than the first vehicle 20. Since the carrying device 10 can be installed at the rear side of the first vehicle 20, the second vehicle can be held by the carrying device 10 at the rear side of the first vehicle 20. The rear side of the first vehicle 20 can be determined based on a vehicle orientation Ov of the first vehicle 20 pointing from the front side to the rear side. In some embodiments, the second vehicle can be a bicycle, such as a general bicycle, a mountain bicycle, a road bicycle, a folding bicycle, an electric bicycle or a hybrid bicycle.

[0050] Figure 2A is a three-dimensional structural view of the carrying device 10 illustrated as in Figure 1 the exemplary embodiments of the present disclosure. The carrying device 10 can include a first arm member 11 and a support member 12. The support member 12 can further include a planar element 121, a plurality of first receiving elements 122 for supporting the second vehicle, and a pivot control element 123 coupled to the first arm member 11. The first arm member 11 can be coupled to the support member 12 and be located between the plurality of first receiving elements 122. The plurality of first receiving elements 122 can be inclinedly coupled to the planar element 121. A plurality of inclination angles of the plurality of first receiving elements 122 with respect to the planar element 121 can be equal to or different from each other. An inclination angle between a plurality of extension lines of the plurality of first receiving elements 122 can be an obtuse angle. The pivot control element 123 can be parallel to the planar element 121. In addition, with reference to Figure 1 and Figure 2A , the pivot control element 123 can be parallel to the vehicle orientation Ov of the first vehicle 20.

[0051] The first arm member 11 can further include a column element 111, a first rotating element 112, and a carrying element 113. The carrying element 113 can be used to hold the second vehicle. The first rotating element 112 coupled to the carrying element 113 can be used to rotate the carrying element 113 along a first rotation axis. In addition, the column element 111 coupled to the first rotating element 112 and the pivot control element 123 can support the first rotating element 112 and the carrying element 113. In some embodiments, a part of the column element 111 coupled to the first rotating element 112 can be the first rotation axis of the first rotating element 112. In addition, the first rotation axis can be perpendicular to the pivot control element 123. Since the pivot control element 123 can be parallel to the vehicle orientation Ov of the first vehicle 20, the first rotation axis perpendicular to the pivot control element 123 can also be perpendicular to the first vehicle 20 in the vehicle orientation Ov.

[0052] The cylindrical element 111 is rotatably pivoted about the pivot control element 123 of the support member 12 to allow the first arm member 11 to rotate between a loading position and an unloading position. The unloading position may be a position where the first arm member 11 is substantially or almost parallel to one of the plurality of first receiving elements 122. The first arm member 11 can be rotated to the loading position to hold the second vehicle on the support member 12. In some embodiments, the loading position may be a position where the first arm member 11 is substantially or almost perpendicular to one of the plurality of first receiving elements 122 and the planar element 121. In some other embodiments, the loading position may be a position where the first arm member 11 can stably hold the second vehicle on the support member 12. However, when the second vehicle is being loaded onto the loading device 10, the first arm member 11 may be an obstacle to moving the second vehicle.

[0053] Figure 2B is a schematic view of a loading device 10 coupled to a ramp member 101 for loading a second vehicle 30 in accordance with an exemplary embodiment of the present disclosure. One end of the ramp member 101 is detachably mounted to one of the plurality of first receiving elements 122, and the other end of the ramp member 101 can be placed on a surface 100. In other words, with combined reference Figure 2A and Figure 2B , one of the plurality of first receiving elements 122 is adaptively coupled to the ramp member 101 to load the second vehicle 30 from the surface 100 onto the support member 12 along the ramp member 101. When the second vehicle 30 is being loaded onto the loading device 10, the ramp member 101 can be mounted to one of the plurality of first receiving elements 122. Thus, the second vehicle 30 can climb up the ramp member 101 to be loaded onto the loading device 10. Then, when the second vehicle 30 is mounted on the loading device 10, the ramp member 101 can be detached from the loading device 10. In some embodiments, the surface 100 may be a floor.

[0054] When the second vehicle 30 is being loaded onto the support member 12 along the plurality of first receiving elements 122, the carrying element 113 is rotated by the first rotating element 112 along the first rotation axis to a release position to prevent the second vehicle 30 from contacting the first arm member 11 at the loading position. Before the second vehicle 30 is loaded, the carrying element 113 can be rotated along the first rotation axis to the release position in advance. Thus, the carrying element 113 does not cross the loading path of the second vehicle 30 to prevent the carrying element 113 from becoming an obstacle during the loading of the second vehicle 30. In some embodiments, the release position can be a position where the loading element 113 is substantially or nearly parallel to the plurality of first receiving elements 122. After the second vehicle 30 moves along the ramp member 101 onto the first receiving elements 122, the carrying element 113 can be rotated back along the first rotation axis to an operating position to hold the second vehicle 30. In some embodiments, the operating position can be a position where the loading element 113 is allowed to hold the second vehicle 30.

[0055] Please refer to Figure 2A , the support member 12 can further include a plurality of second receiving elements 124 for supporting a third vehicle and a pivot control element 125. In addition, the carrying device 10 can further include a second arm member 13 coupled to the support member 12 between the plurality of second receiving elements 124. The second arm member 13 can pivotally rotate around the pivot control element 125 of the support member 12 to allow the second arm member 13 to rotate between a loading position and an unloading position.

[0056] The plurality of second receiving elements 124 can be different from, similar to, or the same as the plurality of first receiving elements 122. The second arm member 13 can be different from, similar to, or the same as the first arm member 11. Thus, the method of determining the loading position and the unloading position of the second arm member 13 can be the same as or similar to the method of determining the loading position and the unloading position of the first arm member 11. In addition, the pivot control element 125 can be different from, similar to, or the same as the pivot control element 123. The third vehicle can be different from, similar to, or the same as the second vehicle 30.

[0057] The plurality of first receiving elements 122 and the first arm member 11 can be regarded as a first vehicle seat, and the plurality of second receiving elements 124 and the second arm member 13 can be regarded as a second vehicle seat. The number of vehicle seats can be greater than or equal to one. For example, the number of vehicle seats can be equal to three or four.

[0058] In some embodiments, the support member 12 may further include a first receiving element 1261. The first receiving element 1261 may be directly or indirectly coupled to one of the first receiving elements 122. When the first arm member 11 does not hold the second carrier 30, the first receiving element 1261 may receive the first arm member 11 to prevent the first arm member 11 from rotating between the loading position and the unloading position. In other words, when the first arm member 11 is received by the first receiving element 1261, the first arm member 11 may be considered to be in the unloading position. The first receiving element 1261 may be a clamping element that holds the first arm member 11. In addition, the first receiving element 1261 may be aligned with the pivot control element 123 in a direction corresponding to the length of the first arm member 11.

[0059] In some other embodiments, the support member 12 may further include a second receiving element 1262. The second receiving element 1262 may be directly or indirectly coupled to one of the second receiving elements 124. When the second arm member 13 does not hold the third carrier, the second receiving element 1262 may receive the second arm member 13 to prevent the second arm member 13 from rotating between the loading position and the unloading position. In other words, when the second arm member 13 is received by the second receiving element 1262, the second arm member 13 may be considered to be in the unloading position. The second receiving element 1262 may be another clamping element that holds the second arm member 13. In addition, the second receiving element 1262 may be aligned with the pivot control element 123 in a direction corresponding to the length of the second arm member 13.

[0060] The support member 12 may further include a plurality of rotating elements 127. In some embodiments, the first rotating element of the plurality of rotating elements 127 may be directly or indirectly coupled to a specific one of the first receiving elements 122, and the second rotating element of the plurality of rotating elements 127 may be directly or indirectly coupled to a specific one of the second receiving elements 124. The specific one of the first receiving elements and the specific one of the second receiving elements may be located on the same side of the carrier device 10. For example, the first and second rotating elements of the plurality of rotating elements 127 may be located on the left side of the carrier device 10. In addition, when the carrier device 10 is mounted to the first vehicle 20, the first rotating element may be relatively far from the first vehicle 20, and the second rotating element may be relatively close to the first vehicle 20. In other words, the first rotating element may be disposed at the left rear of the carrier device 10, and the second rotating element may be disposed at the left front of the carrier device 10. When the plurality of rotating elements 127 are placed on the surface 100, each rotating element 127 may be used to make the carrier device 10 movable. Therefore, when the first rotating element is placed on the surface, the carrier device 10 may be moved by the first rotating element.

[0061] In some other embodiments, the third rotating element among the plurality of rotating elements 127 may be directly or indirectly coupled between the specific first receiving element and the specific second receiving element. In still other embodiments, the support member 12 may further include a plurality of rolling elements. The arrangement of the plurality of rolling elements may be the same as or different from the arrangement of the plurality of rotating elements 127. When both the plurality of rolling elements and the plurality of rotating elements 127 are disposed on the carrying device 10, the carrying device 10 can be tilted to the left or right and can be moved by the plurality of rolling elements or the plurality of rotating elements 127.

[0062] The support member 12 may further include a first connecting element 1281 and a second connecting element 1282. In some embodiments, the first connecting element 1281 may be located on the left side of the carrying device 10, and the second connecting element 1282 may be located on the right side of the carrying device 10. The first first receiving element among the plurality of first receiving elements 122 may be coupled to the first second receiving element among the plurality of second receiving elements 124 through the first connecting element 1281. The second first receiving element among the plurality of first receiving elements 122 may be coupled to the second second receiving element among the plurality of second receiving elements 124 through the second connecting element 1282. In some embodiments, the first receiving element 1261 may be disposed on the first connecting element 1281 to be indirectly coupled to the first first receiving element. In addition, the second receiving element 1262 may be disposed on the second connecting element 1282 to be indirectly coupled to the second second receiving element. Therefore, the first receiving element 1261 and the second receiving element 1262 may be disposed on different connecting elements.

[0063] In some other embodiments, the rotating element 127 may be disposed on both sides of the first connecting element 1281. Therefore, the first rotating element may be indirectly coupled to the first first receiving element through the first connecting element 1281, and the second rotating element may be indirectly coupled to the first second receiving element through the first connecting element 1281. In still other embodiments, both the first receiving element 1261 and the rotating element 127 may be disposed on the first connecting element 1281.

[0064] For a clear and detailed description of the embodiments of the present disclosure, the first arm member 11 is taken as an example for illustration. Figure 3 is a perspective structural view of the first arm member 11 illustrated as in Figure 2A the exemplary embodiment according to the present disclosure. In addition to the column element 111, the first rotating element 111, and the carrying element 113, the first arm member 11 may further include a height adjustment element 114, a locking element 115, and a pivot rotating element 116.

[0065] The height adjustment element 114 can be surrounded by the first rotating element 112. The height adjustment element 114 can be used to adjust the element height of the bearing element 113 to correspond to the vehicle height of the second vehicle 30. When the vehicle height of the second vehicle 30 is higher, the center of gravity position of the second vehicle 30 will also be higher. Therefore, the element height of the bearing element 113 may need to be high enough to ensure that the bearing element 113 can stably hold the second vehicle 30. When the element height of the bearing element 113 is higher, the element distance between the bearing element 113 and the planar element 112 will be longer. This element distance may need to be greater than a distance threshold that can stably hold the second vehicle 30. This distance threshold can be determined based on the vehicle height of the second vehicle 30. In some embodiments, the vehicle height of the second vehicle 30 can be determined based on the highest point of the top tube of a vehicle frame 32 of the second vehicle 30, the lowest point of the top tube, or the highest point of the seat tube.

[0066] The locking element 115 can be coupled to the first rotating element 112. The first rotating element 112 can be clamped between the locking element 115 and the bearing element 113. In some embodiments, when the locking element 115 is locked, the movement of the height adjustment element 114 and the rotation of the first rotating element 112 and the bearing element 113 are restricted. In addition, when the locking element 115 is unlocked, the height adjustment element 114 is allowed to move, and the first rotating element 112 and the bearing element 113 are allowed to rotate. In some other embodiments, the first arm member 11 can include a plurality of locking elements. When one of the plurality of locking elements is locked, the movement of the height adjustment element 114 is restricted. When another one of the plurality of locking elements is locked, the rotation of the first rotating element 112 is restricted. When the remaining one of the locking elements is locked, the rotation of the bearing element 113 is restricted.

[0067] Please refer to Figure 2A 、 Figure 2B and Figure 3, the pivotal rotating element 116 can be coupled to the pivotal control element 112 of the support member 12 to rotate the first arm member 11 between the loading position and the unloading position. In some embodiments, before the second vehicle 30 is loaded onto the carrying device 10, the pivotal control element 123 of the support member 12 can allow the pivotal rotating element 116 to be rotatable so that the first arm member 11 can rotate along the pivotal control element 123 to the loading position. In some embodiments, when the second vehicle 30 is held on the carrying device 10, the rotation of the pivotal rotating element 116 is restricted by the pivotal control element 123 of the support member 12. When the first vehicle 20 is traveling along the vehicle orientation Ov of the first vehicle 20, the rotation of the pivotal rotating element 116 can be restricted to prevent the second vehicle 30 from shifting along the vehicle orientation Ov of the first vehicle 20.

[0068] In some embodiments, one of the pivotal rotating element 116 and the pivotal control element 123 may further include a rotation fixing part. The other of the pivotal rotating element 116 and the pivotal control element 123 may further include a rotation engaging part. The structures of the rotation fixing part and the rotation engaging part may allow the first arm member 11 to switch between allowing rotation and not allowing rotation. For example: The structures of the rotation fixing part and the rotation engaging part may be a close spiral wrapping structure so that the first arm member 11 can switch between allowing rotation and not allowing rotation.

[0069] In some other embodiments, the carrying device 10 may further include a first external fixing element detachably disposed between the pivotal rotating element 116 and the pivotal control element 123 to allow the first arm member 11 to switch between allowing rotation and not allowing rotation. For example, when the second vehicle 30 is loaded onto the carrying device 10, the first external fixing element can be removed from the carrying device 10 so that the first arm member 11 can rotate along the pivotal control device 123 to the loading position. In addition, when the second vehicle 30 is held on the carrying device 10, the first external fixing element can be disposed in the carrying member 10 to restrict the rotation of the pivotal rotating element 116 to prevent the second vehicle 30 from shifting due to inertia.

[0070] Figure 4 is an exploded view of the first arm member 11 illustrated in the exemplary embodiments according to the present disclosure. Please refer to Figure 3 in combination. Figure 3 and Figure 4 , the column element 111 can be surrounded by the height adjustment element 114, and the height adjustment element 114 can be further surrounded by the first rotating element 112. In other words, the column element 111 is also surrounded by the first rotating element 112.

[0071] The first rotating element 112 may further include an annular member 1121 and a clamping member 1122. The cylindrical element 111 and the height adjustment element 114 may be surrounded by the annular member 1121 of the first rotating element 112. The clamping member 1122 of the first rotating element 112 may be clamped between the element to be carried 113 and the locking element 115.

[0072] The element to be carried 113 may further include a connecting member 1130. The connecting member 1130 may cross the clamping member 1122 of the first rotating element 112 to be coupled to the locking element 115. When the locking element 115 is locked, the locking element 115 may move slightly along the connecting member 1130 and move slightly closer to the element to be carried 113. When the locking element 115 is unlocked, the locking element 115 may move slightly along the connecting member 1130 and move slightly away from the element to be carried 113. In some embodiments, the connecting member 1130 may be a screw.

[0073] Figure 5 is a partial enlarged view of region A as illustrated in the exemplary embodiments of the present disclosure. Figure 3 The height adjustment element 114 may further include a plurality of blade members, such as blade members 1141 and 1142. The number of the plurality of blade members may be determined based on the external shape of the cross-sectional area of the cylindrical element 111. When the external shape of the cross-sectional area of the cylindrical element 111 is circular, the number of the plurality of blade members may be greater than or equal to two, such as 2, 3, or 4. When the external shape of the cross-sectional area of the cylindrical element 111 is triangular, the number of the plurality of blade members may be greater than or equal to three, such as 3, 4, 5, or 6. When the external shape of the cross-sectional area of the cylindrical element 111 is quadrilateral, the number of the plurality of blade members may be greater than or equal to four, such as 4, 5, 6, 7, or 8.

[0074] Each blade member may further include a plurality of moving and fixing units. Figure 6 is a three-dimensional structural view of the height adjustment element 114 as illustrated in the exemplary embodiments of the present disclosure. Figure 4 The height adjustment element 114 may include a plurality of blade members, such as a plurality of blade members 1141-1148. For a clear and detailed description of the plurality of blade members 1141-1148 in the embodiments of the present disclosure, the blade member 1141 is taken as an example for illustration.

[0075] Please refer to Figure 5 and Figure 6, since the first rotating element 112 is rotatable relative to the height adjusting element 114, the external shape of the cross-sectional area of the height adjusting element 114 can be substantially similar to or the same as a circle. In addition, since the height adjusting element 114 is movable along the column element 111 in a moving direction Dm, the internal shape of the cross-sectional area of the height adjusting element 114 can correspond to the external shape of the cross-sectional area of the column element 111. In other words, the external shape of the cross-sectional area of the column element 111 can be substantially similar to or the same as the internal shape of the cross-sectional area of the height adjusting element 114. For example, when the external shape of the cross-sectional area of the column element 111 is circular, the internal shape of the cross-sectional area of the height adjusting element 114 can also be circular. When the external shape of the cross-sectional area of the column element 111 is square, the internal shape of the cross-sectional area of the height adjusting element 114 can also be square.

[0076] Please refer to Figure 5 and Figure 6 , the external shape of the cross-sectional area of the column element 111 and the internal shape of the cross-sectional area of the height adjusting element 114 are square. Therefore, the internal shape and the external shape of the cross-sectional area of the height adjusting element 114 are not the same. This results in that the multiple moving and fixing units of each blade component can have different lengths. In other words, the lengths of the multiple moving and fixing units are related to the external shape of the cross-sectional area of the column element 111 and the external shape of the cross-sectional area of the height adjusting element 114. In addition, the lengths of the multiple moving and fixing units can also be related to the external shape and the internal shape of the cross-sectional area of the height adjusting element 114.

[0077] In some embodiments, the lengths of the multiple moving and fixing units in a specific one of the multiple blade components are also related to the multiple distances between the multiple moving and fixing units and a center line of the specific one of the blade components. When a first distance between a first moving and fixing unit and the center line in the specific one of the blade components is longer than a second distance between a second moving and fixing unit and the center line in the specific one of the blade components, the length of the first moving and fixing unit is shorter than the length of the second moving and fixing unit. For example: the length of the first moving and fixing unit away from the center line of the blade component 1141 is shorter than the length of the second moving and fixing unit adjacent to the center line of the blade component 1141.

[0078] Please refer to Figure 5 , the first rotating element 112 can further have a slit component 1120. The slit component 1120 cuts the annular component 1121 to produce a notch and cuts the clamping component 1122 to produce two clamping sub-components. Please refer to Figures 4 to 6When the locking element 115 is locked to move the locking element 115 and cause the bearing element 113 to move slightly closer along the connecting member 1130, the two clamping sub-components of the clamping member 1122 will also move and slightly approach each other. In other words, the slit member 1120 may become narrower, and the height adjustment element 114, the annular member 1121, and the clamping member 1122 can be tightened by the locking element 115 and the bearing element 113. Since the height adjustment element 114 is tightened by the annular member 1121, the plurality of slit members 1140 between the plurality of blade members 1141 - 1144 will also become narrower, causing the plurality of blade members 1141 - 1144 to clamp the cylindrical element 111. Therefore, when the locking element 115 is in the locked state, the height adjustment element 114 clamps the cylindrical element 111 to prevent relative movement between the cylindrical element 111 and the height adjustment element 114.

[0079] When the locking element 115 is unlocked to move the locking element 115 along the connecting member 1130 away from the bearing element 113, the two clamping sub-components of the clamping member 1122 can move away from each other. In other words, the slit member 1120 may become wider, and the height adjustment element 114, the annular member 1121, and the clamping member 1122 can be loosened. Since the height adjustment element 114 is loosened, the plurality of slit members 1140 between the plurality of blade members 1141 - 1144 will also be enlarged, and the height adjustment element 114 becomes movable along the cylindrical element 114 in the moving direction Dm. In addition, the height adjustment element 114 may further include a pair of stepped members 1149 as Figure 6 illustrated. Please refer to Figure 5 and Figure 6 , the annular member 1121 of the first rotating element 112 can be surrounded by the pair of stepped members 1149. In some embodiments, the annular member 1121 of the first rotating element 112 can be completely sealed by the pair of stepped members 1149. Therefore, when the height adjustment element 114 moves along the cylindrical element 111 in the unlocked state, the first rotating element 112 can also be moved by the pair of stepped members 1149 of the height adjustment element 114 together with the bearing element 113. Therefore, the locking element 115 can be regarded as a second locking element. The second locking element is used to determine whether to allow the height adjustment element 114 to move the first rotating element 112 and the bearing element 113 to adjust the element height of the bearing element 113. It should be noted that the locking method between the locking element 115 and the height adjustment element 114 can be changed without departing from the scope of the present disclosure.

[0080] In addition, when the locking element 115 is locked, the slit member 1120 can become wider, and the annular member 1121 can become looser. Since the annular member 1121 of the first rotating element 112 can be surrounded by the pair of stepped members 1149 of the height adjustment element 114, the annular member 1121 of the first rotating element 112 can be allowed to rotate along the first rotation axis in a first rotation direction Dr1 within the range of the pair of stepped members 1149. Therefore, when the locking element 115 is unlocked, the first rotating element 112 and the carrier element 113 coupled to the first rotating element 112 can be allowed to rotate. In addition, when the locking element 115 is locked, the slit member 1120 can become narrower, and the annular member 1121 can be tightened by the clamping member. Therefore, the rotation of the first rotating element 112 and the carrier element 113 along the first rotation axis in the first rotation direction Dr1 is restricted. Therefore, the locking element 115 can be regarded as a first locking element. The first locking element is used to control whether the first rotating element 112 allows the carrier element 113 to rotate along the first rotation axis in the first rotation direction Dr1. In other words, when the first locking element is in an unlocked state, the first rotating element 112 can be rotatable to allow the carrier element 113 to rotate along the first rotation axis to be perpendicular to the pivot control element 123. In addition, when the first locking element is in a locked state, the first locking element restricts the rotation of the first rotating element 112. Since the locking element 115 can perform the functions of both the first locking element and the second locking element, the locking element 115 can be regarded as both the first locking element and the second locking element at the same time. In other words, as Figure 5 shown, the second locking element can be the same as the first locking element. In some embodiments, the second locking element and the first locking element are integrally formed or formed separately. In some embodiments, the columnar element 111 can be the first rotation axis of the first rotating element 112. It should be noted that the locking method between the locking element 115 and the first rotating element 112 can be changed without departing from the scope described in this disclosure.

[0081] Please refer to Figure 2A and Figure 5, when the locking element 115 is in the unlocked state, the first rotating element 112 may be rotatable along the first rotating axis in the first rotating direction Dr1 to allow the supporting element 113 to rotate along the first rotating axis to be perpendicular to the pivot control element 123. In other words, the first rotating element 112 may rotate the supporting element 113 to be parallel to the plurality of first receiving elements 122. When the supporting element 113 is parallel to the plurality of first receiving elements 122 and perpendicular to the pivot control element 123, the supporting element 113 will not be an obstacle during the loading of the second carrier 30 to the supporting device 10. Therefore, before the second carrier 30 is loaded onto the supporting member 12, the supporting element 13 may be rotated along the first rotating axis to be perpendicular to the pivot control element 123 to prevent the second carrier 30 from coming into contact with the supporting element 113 of the first arm member 11 during the subsequent loading. Next, the locking element 115 can be locked again, so that the first rotating element 112 can fix the supporting element 113 to be perpendicular to the pivot control element 123 .

[0082] The bearing element 113 can be rotated 360 degrees along the first rotation axis in the first rotation direction Dr1 by the first rotating element 112. Therefore, when the second carrier 30 has been loaded onto the supporting member 12, the bearing element 113 can be rotated along the first rotation axis by the first rotating element 112 to be parallel to the pivot control element 123 and face the second carrier 30 to hold the second carrier 30. Then, the locking element 115 can be locked again, so that the first rotating unit 112 can fix the bearing element 113 to be parallel to the pivot control element 123 to stably hold the second carrier 30.

[0083] Figure 7 According to the exemplary embodiments of the present disclosure, Figure 3 The illustrated exploded view of the first rotating element 112, the supporting element 113 and the second rotating element 117. The second rotating element 117 can be coupled to the supporting element 113 and the first rotating element 112. In some embodiments, the second rotating element 117 and the supporting element 113 can be two different elements coupled to each other. In some other embodiments, the second rotating element 117 and the supporting element 113 can be manufactured as a single entity.

[0084] In some embodiments, one of the clamping member 1122 and the second rotating element 117 may include a rotation fixing member (not shown). The other of the clamping member 1122 and the second rotating element 117 may include a rotation engaging member (not shown). The structures of the rotation fixing member and the rotation engaging member may allow the load bearing element 113 to switch between allowing rotation and not allowing rotation. For example, the structures of the rotation fixing member and the rotation engaging member may include a combination of a plurality of grooves and a bump unit, so that the load bearing element 113 can switch between allowing rotation and not allowing rotation.

[0085] As Figure 7 shown, in some embodiments, the clamping member 1122 of the first rotating element 112 may further include a first rotation engaging unit 11221 having a plurality of grooves provided on the inner surface of the clamping member 1122. The second rotating element 117 may further include a first rotation fixing unit 11710 corresponding to one of the grooves in the first rotation engaging unit 11221 of the first rotating element 112. For example, the first rotation fixing unit 11710 may include at least one bump unit, and each bump unit corresponds to one of the grooves in the first rotation engaging unit 11221 of the first rotating element 112.

[0086] Please refer to Figure 4 、 Figure 5 and Figure 7 , when the locking element 115 is unlocked, the first rotation fixing unit 11710 may be separated from the first rotation engaging unit 11221. Therefore, the second rotating element 117 may be rotatable along the second rotation axis in the second rotation direction Dr2, thereby rotating the load bearing element 113, where the second rotation axis is perpendicular to the first rotation axis. When the locking element 115 is locked, the first rotation fixing unit 11710 may engage with one of the grooves in the first rotation engaging unit 11221 to fix the load bearing element 113 and prevent the load bearing element 113 from further rotating along the second rotation axis. In some embodiments, the connecting member 1130 may be the second rotation axis of the second rotating element 117.

[0087] In some other embodiments, the second rotating element 117 may further include a first rotation engaging unit (not shown) having a plurality of grooves provided on the outer surface of the second rotating element 117. In addition, the clamping member 1122 of the first rotating element 112 may further include a first rotation fixing unit (not shown) corresponding to one of the grooves in the second rotating element 117. For example, the first rotation fixing unit of the clamping member 1122 may include at least one bump unit, and each bump unit corresponds to one of the grooves in the first rotation engaging unit of the second rotating element 117.

[0088] In some other embodiments, the carrier device 10 may further include a second external fixing element (not shown) detachably disposed between the second rotating element 117 and the clamping member 1122 to allow the carrier element 113 to switch between allowing rotation and not allowing rotation. In some embodiments, the second external fixing element may be separated from the locking element 115 and independently disposed between the second rotating element 117 and the clamping member 1122. Thus, for example, when the second external fixing element is removed from the second rotating element 117 and the clamping member 1122, the carrier element 113 may be rotatable along the second rotation axis in the second rotation direction Dr2, where the second rotation axis is perpendicular to the first rotation axis. Further, when the second external fixing element is disposed on the carrier device 10, the carrier element 113 may be prohibited from rotating along the second rotation axis. In some other embodiments, the second external fixing element may be integrated with the locking element 115 as a whole. Thus, for example, when the locking element 115 is in the unlocked state, the second external fixing element may be removed from the second rotating element 117 and the clamping member 1122 to enable the carrier element 113 to be rotatable along the second rotation axis in the second rotation direction Dr2, where the second rotation axis is perpendicular to the first rotation axis. Further, when the locking element 115 is in the locked state, the second external fixing element may be disposed on the carrier device 10 to prevent the carrier element 113 from rotating along the second rotation axis.

[0089] The carrier element 113 may further include a base member 1131 and a holding member 1132. The holding member 1132 may be coupled to the base member 1131. The holding member 1132 may further include a holding engagement unit 11321 having a plurality of protrusions. The base member 1131 may further include a holding fixing unit 11311 for engaging with the holding engagement unit 11321. In some embodiments, the holding member 1132 may be a movable strip member including the plurality of protrusions, and the holding fixing unit 11311 may be a strip fixing unit to engage with one of the protrusions in the holding member 1132 to fix the holding member 1132.

[0090] Please refer to Figure 2A 、 Figure 2B and Figure 7, after the second vehicle is loaded onto the first receiving element 122, the carrying element 113 can be rotated along the first rotation axis to be parallel to the pivot control element 123. Then, the holding fixing unit 11311 can be adjusted to an unfixed state so that the holding member 1132 is movable in the holding fixing unit 11311. In order to stably hold the second vehicle 30, the holding member 1132 can tighten or loosen the tubular member of the second vehicle by bypassing the tubular member of the second vehicle to hold the second vehicle 30. Therefore, the holding member 1132 is movable to tighten or loosen the tubular member of the second vehicle 30. When the tubular member of the second vehicle is tightly tightened by the holding member 1132, the holding fixing unit 11311 can be adjusted to a fixed state to fix the holding member 1132. Therefore, the holding fixing unit 11311 can engage with a protrusion in the holding engagement unit 11321 of the holding member 1132 to prevent the holding member 1132 from moving and loosening. In some embodiments, the tubular member in the vehicle frame 32 of the second vehicle 30 can be one of the upper tube, seat tube, and lower tube of the second vehicle 30.

[0091] In addition, in order to stably hold the second vehicle 30, the holding member 1132 can be perpendicular to the tubular member of the second vehicle that is tightened. Since both sides of the holding member 1132 are coupled to the base member 1131, the orientation of the holding member 1132 can be controlled by the orientation of the base member 1131 of the carrying element 113. Therefore, in order to stably hold the second vehicle 30, the base member 1131 can be rotated by the second rotating element 117 along the second rotation axis to adjust the orientation of the carrying element 113 to correspond to the tubular direction of the tightened tubular member. In other words, the orientation of the carrying element 113 can also be adjusted to be perpendicular to the tubular orientation of the tightened tubular member to tightly tighten the tubular member. The number of grooves in the first rotation engagement unit 11221 can be equal to an integer. The more grooves there are in the first rotation engagement unit 11221, the more orientations the carrying element 113 is allowed to rotate.

[0092] When the locking element 115 is in the unlocked state, the second rotating element 117 is allowed to rotate the bearing element 113 to adjust the orientation of the bearing element 113. In addition, when the locking element 115 is in the locked state, the first rotation fixing unit 11710 of the second rotating element 117 can engage with the first rotation engaging unit 11221 to fix the bearing element 113. In other words, when the locking element 115 is in the locked state, the second rotating element 117 cannot adjust the orientation of the bearing element 113. Therefore, the locking element 115 can be a third locking element for controlling whether the second rotating element 117 is allowed to adjust the orientation of the bearing element 113. Since the locking element 115 can perform the functions of the first locking element and the third locking element simultaneously, the locking element 115 can be regarded as the first locking element and the third locking element at the same time. In other words, as Figure 5 shown, the third locking element can be the same as the first locking element. In some embodiments, the first locking element and the third locking element can be integrally formed or formed separately. It should be noted that the locking method between the locking element 115 and the second rotating element 117 can be changed without departing from the scope of the present disclosure. In some embodiments, since the locking element 115 can perform the functions of the first locking element, the second locking element, and the third locking element simultaneously, the locking element 115 can be regarded as each of the first locking element, the second locking element, and the third locking element at the same time. In addition, the first locking element, the second locking element, and the third locking element can be integrally formed with each other or formed separately.

[0093] In some embodiments, one of the annular member 1121 and the height adjustment element 114 may include a rotation fixing member (not shown). The other of the annular member 1121 and the height adjustment element 114 may include a rotation engaging member (not shown). The structures of the rotation fixing member and the rotation engaging member may allow the first rotating element 112 to switch between being allowed to rotate and not being allowed to rotate. For example, the structures of the rotation fixing member and the rotation engaging member may include a combination of a plurality of recessed units and a bump unit to enable the first rotating element 112 to switch between being allowed to rotate and not being allowed to rotate.

[0094] Please refer to Figure 6 and Figure 7, the annular member 1121 of the first rotating element 112 may further include a second rotation fixing unit 11211 protruding from the inner surface of the annular member 1121. In addition, the height adjustment element 114 may further include a plurality of second rotation engaging units 11400 corresponding to the second rotation fixing unit 11211. For example, the second rotation fixing unit 11211 may include at least one bump unit, and the second rotation engaging unit 11400 may include a plurality of recess units. When the locking element 115 is in the unlocked state, the slit member 1120 may be enlarged and the annular member 1121 may be loosened. Therefore, the second rotation fixing unit 11211 may be movable between the second rotation engaging units 11400, and the first rotating element 112 is rotatable relative to the height adjustment element 114. However, when the locking element 115 is in the locked state, the slit member 1120 may be reduced and the annular member 1121 may be tightened. Therefore, the second rotation fixing unit 11211 may be wrapped into the second rotation engaging unit 11400, such that the first rotating element 112 is not allowed to rotate relative to the height adjustment element 114. Therefore, the locking element 115 may control the relative movement of the second rotation fixing unit 11211 and the second rotation engaging unit 11400 to determine whether to allow the first rotating element 112 to rotate along the first rotation axis.

[0095] In some other embodiments, the height adjustment element 114 may further include a second rotation fixing unit (not shown) protruding from the outer surface of the height adjustment element 114. In addition, the annular member 1121 of the first rotating element 112 may further include a second rotation engaging unit (not shown) corresponding to the second rotation fixing unit of the height adjustment element 114. For example, the second rotation fixing unit of the height adjustment element 114 may include at least one bump unit, and the second rotation engaging unit of the annular member 1121 may include a plurality of recess units.

[0096] In some other embodiments, the carrier device 10 may further include a third external fixing element (not shown) detachably disposed between the annular member 1121 and the height adjustment element 114 to allow the first rotating element 112 to switch between being allowed to rotate and not being allowed to rotate. In some embodiments, the third external fixing element may be separated from the locking element 115 and independently disposed between the annular member 1121 and the height adjustment element 114. Thus, for example, when the third external fixing element is removed from between the annular member 1121 and the height adjustment element 114, the first rotating element 112 is rotatable relative to the height adjustment element 114. In addition, when the third external fixing element is disposed on the carrier device 10, the first rotating element 112 may be prohibited from rotating relative to the height adjustment element 114. In some other embodiments, the third external fixing element may be integrated with the locking element 115 as a single unit. Thus, for example, when the locking element 115 is in the unlocked state, the third external fixing element may be removed from between the annular member 1121 and the height adjustment element 114 to enable the first rotating element 112 to be rotatable relative to the height adjustment element 114. In addition, when the locking element 115 is in the locked state, the third external fixing element may be disposed on the carrier device 10 to prevent the first rotating element 112 from rotating relative to the height adjustment element 114.

[0097] When the first vehicle 20 holding the second vehicle 30 performs an emergency brake, the objects on the first vehicle 20 (e.g., the carrier device 10 and the second vehicle 30) tend to tilt forward due to inertia. In addition, when the first vehicle 20 holding the second vehicle 30 accelerates rapidly, the objects on the first vehicle 20 tend to shift backward due to inertia.

[0098] Since the support member 12 of the carrier device 10 can be directly mounted on the first vehicle 20, the offset of the support member 12 relative to the first vehicle 20 due to inertia may be small enough to be negligible. In addition, the plurality of wheels 31 of the second vehicle 30 can be snapped into the support member 12 with a relatively small offset due to inertia relative to the first vehicle 20. The offset of the wheels 31 relative to the first vehicle 20 due to inertia may also be small enough to be negligible. Therefore, when the second vehicle 30 is offset due to inertia, the wheels 31 of the second vehicle 30 can serve as a pivot point for the second vehicle 30 to swing.

[0099] Furthermore, the first of the two end points of the first arm member 11 can be mounted on the support member 12 with a relatively small inertial offset relative to the first vehicle 20 through the engagement of the pivot rotation element 116 with the pivot control element 123. The inertial offset of the first end point of the first arm member 11 relative to the first vehicle 20 may also be negligibly small. Therefore, when the first arm member 11 is offset due to inertia, the pivot rotation element 116 of the first arm member 11 can serve as a pivot point for the swinging of the first arm member 11.

[0100] The longer the distance between the connecting line of the wheels 31 and a specific tubular member in the vehicle frame 32 of the second vehicle 30, the greater the offset of the specific tubular member in the vehicle frame 32 of the second vehicle 30. Therefore, although the offset of the wheels 31 of the second vehicle 30 is negligibly small, the offset of the specific tubular member in the vehicle frame 32 of the second vehicle 30 due to inertia relative to the support member 12 of the carrying device 10 may be large enough to be non-negligible. In addition, the longer the distance between the pivot rotation element 116 and a specific one of the other elements in the first arm member 11, the greater the offset of the specific element in the first arm member 11. Therefore, although the offset of the support member 12 is negligibly small, the offset of the specific end point of the first arm member 11 due to inertia relative to the support member 12 of the carrying device 10 may be large enough to be non-negligible.

[0101] The weight of the second vehicle 30 may be different from the weight of the first arm member 11, and the height of the center of gravity of the second vehicle 30 may also be different from the height of the center of gravity of the first arm member 11. Therefore, although the bearing element 113 of the first arm member 11 can fasten the tubular member of the second vehicle 30, the offset of the bearing element 113 of the first arm member 11 may be different from the offset of the tubular member of the second vehicle 30. In other words, when the first vehicle 20 holding the second vehicle 30 performs an emergency brake or rapid acceleration, the bearing element 113 of the first arm member 11 may rotate due to the offset difference between the bearing element 113 of the first arm member 11 and the tubular member of the second vehicle 30. Furthermore, since the bearing element 113 of the first arm member 11 may rotate due to this offset difference, the pivot rotating element 116 may rotate due to the rotation of the bearing element 113 of the first arm member 11. Therefore, when the first vehicle 20 holding the second vehicle 30 performs an emergency brake or rapid acceleration, the first rotating element 112 and the pivot rotating element 116 may rotate due to the offset difference generated by inertia. Even if the bearing device 10 does not include the first rotating element 112 for rotating the bearing element 113 along the first rotation axis and the pivot rotating element 116 for rotating the first arm member 11, the bearing element 113 and the first arm member 11 may still rotate slightly due to inertia. However, repeated abnormal slight rotations may cause fatigue and eventually result in damage over time. Therefore, the bearing device 10 may need to overcome the problem of inertia.

[0102] Please refer to Figure 6 and Figure 7 , the structure of the rotation fixing part (for example: the second rotation fixing unit 11211) and the rotation engaging part (for example: the second rotation engaging unit 11400) formed by the first rotating element 112 and the height adjusting element 114 can allow the first rotating element 112 to switch between allowing rotation and not allowing rotation. Therefore, when the first rotating element 112 tends to rotate due to the offset difference generated by inertia, the structure of the rotation fixing part and the rotation engaging part of the first rotating element 112 and the height adjusting element 114 can fix the direction of the bearing element 113 to avoid the rotation of the first rotating element 112 caused by this offset difference.

[0103] Furthermore, please refer to Figure 2A and Figure 3, the structure of the rotation fixing part and the rotation engaging part formed by the pivot rotation element 116 and the pivot control element 123 can allow the first arm member 11 to switch between allowing rotation and not allowing rotation. Therefore, when the first arm member 11 tends to rotate due to the offset difference caused by inertia, the structure of the rotation fixing part and the rotation engaging part of the pivot rotation element 116 and the pivot control element 123 can fix the orientation of the first arm member 11 to prevent the offset difference from causing the rotation of the first arm member 11.

[0104] Figure 8 is another perspective view of a carrier device 40 illustrated as in Figure 1 an exemplary embodiment of the present disclosure. The carrier device 40 may include a first arm member 41 and a support member 42. The support member 42 may further include a flat bar element 421, a plurality of first receiving elements 422 for supporting a second vehicle, and a pivot control element 423 coupled to the first arm member 41. The first arm member 41 may be coupled to the support member 42 and located between the plurality of first receiving elements 422. The plurality of first receiving elements 422 may be inclinedly coupled to the flat bar element 421. The plurality of inclination angles of the plurality of first receiving elements 422 with respect to the flat bar element 421 may be equal to or different from each other. The inclination angle between the plurality of extension lines of the plurality of first receiving elements 422 may be an obtuse angle. The pivot control element 423 may be parallel to the flat bar element 421. In addition, with reference to Figure 1 and Figure 8 , the pivot control element 423 may be parallel to the vehicle orientation Ov of the first vehicle 20.

[0105] The first arm member 41 may further include a column element 411, a first rotation element 412, and a load-bearing element 413. The load-bearing element 413 may be used to hold the second vehicle. The first rotation element 412 coupled to the load-bearing element 413 may be used to rotate the load-bearing element 413 along a first rotation axis. In addition, the column element 411 coupled to the first rotation element 412 and the pivot control element 423 may support the first rotation element 412 and the load-bearing element 413. In some embodiments, the first rotation axis may be perpendicular to the column element 411 and the pivot control element 423. Since the pivot control element 423 may be parallel to the vehicle orientation Ov of the first vehicle 20, the first rotation axis perpendicular to the pivot control element 423 may also be perpendicular to the vehicle orientation Ov of the first vehicle 20.

[0106] The cylindrical element 411 is rotatably pivoted around the pivot control element 423 of the support member 42 to allow the first arm member 41 to rotate between a loading position and an unloading position. The unloading position may be a position where the first arm member 41 is substantially or nearly parallel to one of the plurality of first receiving elements 422. The first arm member 41 can be rotated to the loading position to hold the second vehicle on the support member 42. In some embodiments, the loading position may be a position where the first arm member 41 is substantially or nearly perpendicular to the flat bar element 421 and one of the plurality of first receiving elements 422. In some other embodiments, the loading position may be a position where the first arm member 41 can stably hold the second vehicle on the support member 42. However, when the second vehicle is being loaded onto the carrying device 40, the first arm member 41 may be an obstacle to moving the second vehicle.

[0107] Please refer to Figure 2B and Figure 8 , one end of the ramp member 101 is detachably mounted to one of the plurality of first receiving elements 422, and the other end of the ramp member 101 can be placed on the surface 100. In other words, one of the plurality of first receiving elements 422 is adaptively coupled to the ramp member 101 to load the second vehicle 30 from the surface 100 onto the support member 42 along the ramp member 101. When the second vehicle 30 is being loaded onto the carrying device 40, the ramp member 101 can be mounted to one of the plurality of first receiving elements 422. Thus, the second vehicle 30 can climb up the ramp member 101 to be loaded onto the carrying device 40. Then, when the second vehicle 30 is loaded onto the carrying device 40, the ramp member 101 can be detached from the carrying device 40. In some embodiments, the surface 100 can be a ground.

[0108] When the second vehicle 30 is being loaded onto the support member 42 along the plurality of first receiving elements 422, the bearing element 413 can be rotated by the first rotating element 412 along the first rotation axis to a release position to prevent the second vehicle 30 from contacting the first arm member 41 in the loading position. Before the second vehicle 30 is loaded, the bearing element 413 can be rotated along the first rotation axis to the release position in advance. Thus, the bearing element 413 does not cross the loading path of the second vehicle 30 to prevent the bearing element 413 from being an obstacle in the process of loading the second vehicle 30. In some embodiments, the release position may be a position where the bearing element 413 is substantially or nearly perpendicular to the plurality of first receiving elements 422 and faces downward. After the second vehicle 30 moves along the ramp member 101 onto the plurality of first receiving elements 422, the bearing element 413 can be rotated back along the first rotation axis to an operating position to hold the second vehicle 30. In some embodiments, the operating position may be a position where the bearing element 413 is allowed to hold the second vehicle 30.

[0109] Please refer to again Figure 8 Figure 8 , the support member 42 may further include a plurality of second receiving elements 424 for supporting the third vehicle and a pivot control element 425. In addition, the carrying device 40 may further include a second arm member 43 coupled to the support member 42 between the plurality of second receiving elements 424. The second arm member 43 may pivotally rotate about the pivot control element 425 of the support member 42 to allow the second arm member 43 to rotate between a loading position and an unloading position.

[0110] The plurality of second receiving elements 424 may be different from, similar to, or the same as the plurality of first receiving elements 422. The second arm member 43 may be different from, similar to, or the same as the first arm member 41. Therefore, the determination method of the loading position and the unloading position of the second arm member 43 may be the same as or similar to the determination method of the loading position and the unloading position of the first arm member 41. In addition, the pivot control element 425 may be different from, similar to, or the same as the pivot control element 423. The third vehicle may be different from, similar to, or the same as the second vehicle 30.

[0111] The plurality of first receiving elements 422 and the first arm member 41 may be regarded as a first vehicle seat of the carrying device 40, and the plurality of second receiving elements 424 and the second arm member 43 may be regarded as a second vehicle seat of the carrying device 40. The number of vehicle seats may be greater than or equal to one. For example: the number of vehicle seats may be equal to three or four.

[0112] The support member 42 may further include a first connecting element 4281 and a second connecting element 4282. The first connecting element 4281 may be located on the left side of the carrying device 40, and the second connecting element 4282 may be located on the right side of the carrying device 40. The first of the plurality of first receiving elements 422 may be coupled to the first of the plurality of second receiving elements 424 through the first connecting element 4281, and the second of the plurality of first receiving elements 422 may be coupled to the second of the plurality of second receiving elements 424 through the second connecting element 4282.

[0113] In some embodiments, the support member 42 may further include a first receiving element (not shown) that may be directly or indirectly coupled to the first of the plurality of first receiving elements 422. In addition, the support member 42 may further include a second receiving element (not shown) that may be directly or indirectly coupled to the second of the plurality of second receiving elements 424. Therefore, the first receiving element and the second receiving element may be disposed on different connecting elements. The arrangement and function of the first receiving element and the second receiving element in the carrying device 40 may be the same as or similar to the arrangement and function of the first receiving element 1261 and the second receiving element 1262 in the carrying device 10.

[0114] In some other embodiments, the support member 42 may further include a plurality of rotating elements (not shown) that are directly or indirectly coupled to the first of the plurality of first receiving elements 422 and the first of the plurality of second receiving elements 424. The arrangement and function of the rotating elements in the carrying device 40 may be the same as or similar to the arrangement and function of the rotating elements 127 in the carrying device 10.

[0115] For a clear and detailed description of the embodiments of the present disclosure, the first arm member 41 is taken as an example for illustration. Figure 9 is a three-dimensional structural view of the first arm member 41 exemplified as in Figure 8 the exemplary embodiment of the present disclosure. In addition to the column element 411, the first rotating element 412, and the carrying element 413, the first arm member 41 may further include a height adjustment element 414, a first locking element 4151, a second locking element 4152, a third locking element 4153, and a pivot rotating element 416. In some embodiments, as Figure 9 shown, the second locking element 4152 may be different from the first locking element 4151, and the third locking element 4153 may also be different from the first locking element 4151. In addition, the second locking element 4152 and the first locking element 4151 may be formed separately, the third locking element 4153 and the first locking element 4151 may be formed separately, and the third locking element 4153 and the second locking element 4152 may be formed separately.

[0116] The height adjustment element 414 can be used to adjust the element height of the carrying element 413 to correspond to the vehicle height of the second vehicle 30. When the vehicle height of the second vehicle is relatively high, the center of gravity position of the second vehicle 30 will also be relatively high. Therefore, the element height of the carrying element 413 may need to be high enough to ensure that the carrying element 413 can stably hold the second vehicle 30. When the element height of the carrying element 413 is higher, the element distance between the carrying element 413 and the flat bar element 421 will be longer. This element distance may need to be greater than a distance threshold that can stably hold the second vehicle 30. This distance threshold can be determined based on the vehicle height of the second vehicle 30. In some embodiments, the vehicle height of the second vehicle 30 can be determined based on the highest point of the upper tube of the vehicle frame 32 of the second vehicle 30, the lowest point of the upper tube, or the highest point of the seat tube.

[0117] The first locking element 4151 can be coupled to the first rotating element 412. When the first locking element 4151 is locked, the rotation of the first rotating element 412 and the carrier element 413 can be restricted. In addition, when the first locking element 4151 is unlocked, the first rotating element 412 and the carrier element 413 can be allowed to rotate. The second locking element 4152 can be coupled to the height adjustment element 414. When the second locking element 4152 is locked, the movement of the height adjustment element 414 can be restricted. In addition, when the second locking element 4152 is unlocked, the height adjustment element 414 can be allowed to move.

[0118] Please combine and refer to Figure 2B , Figure 8 and Figure 9 , the pivot rotating element 416 can be coupled to the pivot control element 423 of the support member 42 to rotate the first arm member 41 between the loading position and the unloading position. In some embodiments, the pivot control element 423 of the support member 42 can allow the pivot rotating element 416 to be rotatable so that the first arm member 41 can rotate along the pivot control element 423 to the loading position before the second vehicle 30 is loaded onto the carrier device 40. In some embodiments, when the second vehicle 30 is held on the carrier device 40, the rotation of the pivot rotating element 416 can be restricted by the pivot control element 423 of the support member 42. When the first vehicle 20 is traveling along the vehicle orientation Ov of the first vehicle 20, the rotation of the pivot rotating element 416 can be restricted to prevent the second vehicle 30 from deviating along the vehicle orientation Ov of the first vehicle 20.

[0119] In some embodiments, one of the pivot rotating element 416 and the pivot control element 423 can include a rotation fixing member (not shown). The other of the pivot rotating element 416 and the pivot control element 423 can include a rotation engaging member (not shown). The structures of the rotation fixing member and the rotation engaging member can allow the first arm member 41 to switch between allowing rotation and not allowing rotation. For example, the structures of the rotation fixing member and the rotation engaging member can be a tight spiral wrapping structure so that the first arm member 41 can switch between allowing rotation and not allowing rotation.

[0120] In some other embodiments, the carrier device 40 may further include a first external fixing element (not shown) detachably disposed between the pivot rotation element 416 and the pivot control element 423 to allow the first arm member 41 to switch between allowing rotation and not allowing rotation. For example, before the second vehicle 30 is loaded onto the carrier device 40, the first external fixing element may be removed from the carrier device 40 so that the first arm member 41 can rotate along the pivot control element 423 to the loading position. In addition, when the second vehicle 30 is held in the carrier device 40, the first external fixing element may be disposed on the carrier device 40 to limit the rotation of the pivot rotation element 416 to prevent the second vehicle 30 from shifting due to inertia.

[0121] Figure 10 is a exploded view of the first arm member 41 as illustrated in an exemplary embodiment of the present disclosure. Please refer to Figure 9 for combination. Figure 9 and Figure 10 , the column element 411 may further include a first column part 4111 and a second column part 4112. The first column part 4111 and the second column part 4112 may be respectively inserted into the height adjustment element 414. The second locking element 4152 may be used to control the movement of the height adjustment element 414.

[0122] The first rotation element 412 may further include an engagement part 4121, a circular part 4122, and a coupling part 4123. The coupling part 4123 may be used to couple the first rotation element 412 with the column element 411. The engagement part 4121 may be coupled with the coupling part 4123 and may rotate relative to the coupling part 4123 along a first rotation axis. The circular part 4122 may be coupled with the engagement part 4121 to enable the carrier element 413 to rotate along a second rotation axis different from the first rotation axis.

[0123] The carrier element 413 may further include a connection part 4130, a base part 4131, and a holding part 4132. The connection part 4130 may penetrate the circular part 4122 of the first rotation element 412. The connection part 4130 may rotate within the circular part 4122 to control the distance between the carrier element 413 and the second vehicle 30. In some embodiments, the connection part 4130 may further include a plurality of threads. The holding part 4132 may be coupled with the base part 4131. The holding part 4132 may be a movable strip part including a plurality of protrusions, and the base part 4131 may further include a strip fixing unit to engage with one of the protrusions of the holding part 4132 to stably hold the second vehicle 30.

[0124] Figure 11 is a exploded view of the first arm member 41 as illustrated in an exemplary embodiment of the present disclosure. Please refer to Figure 9An enlarged partial view of the illustrated region B. Figure 12 is another perspective view of the first arm member 41 as Figure 9 illustrated in an exemplary embodiment according to the present disclosure. Please refer to Figures 10 to 12 , the height adjustment element 414 may further include a first adjustment member 4141, a second adjustment member 4142, and a crack member 4140. The first column member 4111 of the column element 411 may be inserted into the first adjustment member 4141, and the second column member 4112 of the column element 411 may be inserted into the second adjustment member 4142. The crack member 4140 may be formed on a wall between the first adjustment member 4141 and the second adjustment member 4142. In some embodiments, the height adjustment element 414 may further include a fastening member 4143 that penetrates the second adjustment member 4142 and the second column member 4112 to prevent relative movement between the second adjustment member 4142 and the second column member 4112. In some other embodiments, the fastening member 4143 may be excluded from the height adjustment member 414. Thus, the second column member 4112 may be movable relative to the height adjustment member 414.

[0125] The second locking element 4152 may penetrate the wall between the first adjustment member 4141 and the second adjustment member 4142 to control a gap width of the crack member 4140. The second locking element 4152 may control the gap width to determine whether to allow the height adjustment element 414 to move the first rotating element 412 and the bearing element 413 to adjust the element height of the bearing element 413. When the second locking element 4152 is locked in a locked state to narrow the gap width of the crack member 4140, the first column member 4111 may be tightly clamped by the first adjustment member 4141. Thus, the first adjustment member 4141 is not allowed to move along a movement direction Dm. In addition, the second column member 4112 may also be tightly clamped by the second adjustment member 4142. Thus, the second column member 4112 is not allowed to move along the movement direction Dm.

[0126] When the second locking element 4152 is unlocked in the unlocked state to widen the gap width of the crack component 4140, the first columnar component 4111 can be loosened. Therefore, the first adjustment component 4141 can be allowed to move along the first columnar component 4111 in the moving direction Dm. In other words, the second column 4112, the first rotating element 412, and the bearing element 413 can move in the moving direction Dm to adjust the element height of the bearing element 413. In some embodiments, when the height adjustment element 414 includes the clamping component 4143, the second columnar component 4112 may not be allowed to move in the moving direction Dm in the unlocked state. However, in some other embodiments, when the clamping component 4143 is excluded from the height adjustment component 414, the second columnar component 4112 can be allowed to move in the moving direction Dm in the unlocked state. Therefore, the second locking element 4152 can be used to control whether the height adjustment element 414 is allowed to move the first rotating element 412 and the bearing element 413 to adjust the element height of the bearing element 413. It should be noted that the locking method between the second locking element 4152 and the height adjustment element 414 can be changed without departing from the scope described in the present disclosure.

[0127] The coupling component 4123 can be used to couple the first rotating element 412 and the second columnar element 4112. The connecting component 4121 can be coupled to the coupling component 4123 and can rotate relative to the coupling component 4123 about the first rotation axis in the first rotation direction Dr1. The connecting component 4121 and the coupling component 4123 can have a coaxial axis. This coaxial axis can be the first rotation axis of the connecting component 4121. The circular component 4122 can be coupled to the connecting component 4121 and the bearing element 413 to rotate the bearing element 413 in the first rotation direction Dr1. The first locking element 4151 can be used to lock the connecting component 4121 and the coupling component 4123 together to prevent relative rotation between the connecting component 4121 and the coupling component 4123. In some embodiments, the connecting component 4121 can include a plurality of first serration units, and the coupling component 4123 can also include a plurality of second serration units, with each second serration unit corresponding to one of the first serration units. Therefore, the plurality of first serration units and the plurality of second serration units can be used to control a rotation angle of the connecting component 4121. It should be noted that the engagement method between the connecting component 4121 and the coupling component 4123 can be changed without departing from the scope described in the present disclosure.

[0128] In some embodiments, one of the engagement member 4121 and the coupling member 4123 may include a rotational fixing member (not shown). The other of the engagement member 4121 and the coupling member 4123 may include a rotational engaging member (not shown). The structures of the rotational fixing member and the rotational engaging member may allow the engagement member 4121 to switch between allowing rotation and not allowing rotation. For example, the structures of the rotational fixing member and the rotational engaging member may include a combination of a plurality of recessed units and a plurality of bump units, so that the engagement member 4121 can switch between allowing rotation and not allowing rotation.

[0129] As Figure 12 shown, the engagement member 4121 may further include a second rotational fixing unit 41211 facing the coupling member 4123. In addition, the coupling member 4123 may further include a second rotational engaging unit 41231 corresponding to the rotational fixing unit 41211. For example, the second rotational fixing unit 41211 may include a plurality of bump units, and the second rotational engaging unit 41231 may include a plurality of recessed units. When the first locking element 4151 is locked in the locked state to lock the engagement member 4121 and the coupling member 4123 together, the engagement member 4121 is not allowed to rotate relative to the coupling member 4123 about the first rotation axis in the first rotation direction Dr1. When the first locking element 4151 is unlocked in the unlocked state, the engagement member 4121 may be allowed to separate from the coupling member 4123. Therefore, the engagement member 4121 may be allowed to rotate relative to the coupling member 4123 about the first rotation axis in the first rotation direction Dr1. Therefore, the first locking element 4151 can be used to control whether to allow the first rotating element 412 to rotate the bearing element 413 about the first rotation axis in the first rotation direction Dr1. It should be noted that the locking manner between the first locking element 4151 and the engagement member 4121 can be changed without departing from the scope of the present disclosure.

[0130] In some other embodiments, the coupling member 4123 may further include a second rotational fixing unit (not shown) facing the engagement member 4121. In addition, the engagement member 4121 may further include a second rotational engaging member (not shown) corresponding to the second rotational fixing unit. For example, the second rotational fixing unit may include the plurality of bump units, and the second rotational engaging member may include the plurality of recessed units.

[0131] In some other embodiments, the carrier device 40 may further include a third external fixing element (not shown) detachably disposed between the coupling member 4123 and the engagement member 4121 to allow the engagement member 4121 to switch between allowing rotation and not allowing rotation. In some embodiments, the third external fixing element may be separated from the first locking element 4151 and independently disposed between the coupling member 4123 and the engagement member 4121. Thus, for example, when the third external fixing element is removed from between the coupling member 4123 and the engagement member 4121, the engagement member 4121 may be rotatable relative to the coupling member 4123. In addition, when the third external fixing element is disposed on the carrier device 40, the engagement member 4121 may be prohibited from rotating relative to the coupling member 4123. In some other embodiments, the third external fixing element may be integrated with the first locking element 4151 as a single unit. Thus, for example, when the first locking element 4151 is in the unlocked state, the third external fixing element may be removed from between the coupling member 4123 and the engagement member 4121 to enable the engagement member 4121 to be rotatable relative to the coupling member 4123. In addition, when the first locking element 4151 is in the locked state, the third external fixing element may be disposed on the carrier device 40 to prevent the engagement member 4121 from rotating relative to the coupling member 4123.

[0132] The carrier element 413 may further include a connecting member 4130, a base member 4131, and a holding member 4132. The connecting member 4130 may penetrate the circular member 4122 of the first rotating element 412. The connecting member 4130 may rotate within the circular member 4122 to control the distance between the carrier element 413 and the second vehicle 30. In some embodiments, the connecting member 4130 may further include a plurality of threads, and the threads of the connecting member 4130 may be a plurality of external threads. In addition, the circular member 4122 may also include a plurality of threads, and the threads of the circular member 4122 may be a plurality of internal threads corresponding to the external threads of the connecting member 4130. The connecting member 4130 and the circular member 4122 may have a common axis. Thus, the connecting member 4130 of the carrier element 413 may rotate within the circular member 4122. The connecting member 4130 of the carrier element 413 may be allowed to rotate along a second rotation axis in a second rotation direction Dr2, where the second rotation axis is perpendicular to the first rotation axis. The common axis may be the second rotation axis of the connecting member 4130. It should be noted that the engagement manner between the connecting member 4130 and the circular member 4122 may be changed without departing from the scope of the present disclosure.

[0133] When the third locking element 4153 is locked in the locked state, the connecting member 4130 of the carrier element 413 is not allowed to rotate relative to the circular member 4122 about the second rotation axis in the second rotation direction Dr2. When the first locking element 4151 is unlocked in the unlocked state, the connecting member 4130 of the carrier element 413 is allowed to rotate relative to the circular member 4122 about the second rotation axis in the second rotation direction Dr2. Therefore, the third locking element 4153 can be used to control whether the connecting member 4130 is allowed to adjust the orientation of the carrier element 413 and the distance between the carrier element 413 and the second vehicle. It should be noted that the locking manner between the third locking element 4153 and the connecting member 4130 can be changed without departing from the scope of the present disclosure.

[0134] The holding member 4132 may further include a holding engagement unit 41321 containing a plurality of protrusions. The base member 4131 may further include a holding fixing unit 41311 for engaging with the holding engagement unit 41321. In some embodiments, the holding member 4132 may be a movable strip member including the plurality of protrusions, and the holding fixing unit 41311 may be a strip fixing unit to engage with one of the protrusions in the holding member 4132 to fix the holding member 4132.

[0135] Please refer to Figure 2A , Figure 2B and Figure 12 , after the second vehicle is loaded onto the plurality of first receiving elements 422, the carrier element 413 can be rotated about the first rotation axis to be parallel to the pivot control element 423. Then, the holding fixing unit 41311 can be adjusted to the unfixed state so that the holding member 4132 is movable in the holding fixing unit 41311. To stably hold the second vehicle 30, the holding member 4132 can tighten or loosen a tubular member of the second vehicle by bypassing the tubular member of the second vehicle to hold the second vehicle 30. Therefore, the holding member 4132 is movable to tighten or loosen the tubular member of the second vehicle 30. When the tubular member of the second vehicle is tightly tightened by the holding member 4132, the holding fixing unit 41311 can be adjusted to the fixed state to fix the holding member 4132. Therefore, the holding fixing unit 41311 can engage with one of the protrusions of the holding engagement unit 41321 of the holding member 4132 to prevent the holding member 4132 from moving and loosening. In some embodiments, the tubular member in the vehicle frame 32 of the second vehicle 30 can be one of the upper tube, seat tube and lower tube of the second vehicle 30.

[0136] When the first vehicle 20 holding the second vehicle 30 performs an emergency brake, objects on the first vehicle 20 (e.g., the carrying device 40 and the second vehicle 30) tend to tilt forward due to inertia. In addition, when the first vehicle 20 holding the second vehicle 30 accelerates rapidly, objects on the first vehicle 20 tend to shift backward due to inertia.

[0137] Since the support member 42 of the carrying device 40 can be directly mounted on the first vehicle 20, the shift of the support member 42 relative to the first vehicle 20 due to inertia may be so small as to be negligible. In addition, the plurality of wheels 31 of the second vehicle 30 can be snapped into the support member 42 with a relatively small shift due to inertia relative to the first vehicle 20. The shift of the wheels 31 relative to the first vehicle 20 due to inertia may also be so small as to be negligible. Therefore, when the second vehicle 30 shifts due to inertia, the wheels 31 of the second vehicle 30 can serve as a pivot point for the swing of the second vehicle 30.

[0138] Furthermore, the first end of the two ends of the first arm member 41 can be mounted on the support member 42 with a relatively small shift due to inertia relative to the first vehicle 20 through the engagement of the pivot rotation element 416 and the pivot control element 423. The shift of the first end of the first arm member 41 relative to the first vehicle 20 due to inertia may also be so small as to be negligible. Therefore, when the first arm member 41 shifts due to inertia, the pivot rotation element 416 of the first arm member 41 can serve as a pivot point for the swing of the first arm member 41.

[0139] The longer the distance between the connecting line of the wheels 31 and a specific tubular component in the vehicle frame 32 of the second vehicle 30, the greater the shift of the specific tubular component in the vehicle frame 32 of the second vehicle 30. Therefore, although the shift of the wheels 31 of the second vehicle 30 is so small as to be negligible, the shift of the specific tubular component in the vehicle frame 32 of the second vehicle 30 relative to the support member 42 of the carrying device 40 due to inertia may be large enough to be noticed. In addition, the longer the distance between the pivot rotation element 416 and a specific one of the other elements in the first arm member 41, the greater the shift of the specific element in the first arm member 41. Therefore, although the shift of the support member 42 is so small as to be negligible, the shift of the specific end of the first arm member 41 relative to the support member 42 of the carrying device 40 due to inertia may be large enough to be noticed.

[0140] The weight of the second vehicle 30 may be different from that of the first arm member 41, and the height of the center of gravity of the second vehicle 30 may also be different from that of the first arm member 41. Therefore, although the load-carrying element 413 of the first arm member 41 can fasten the tubular member of the second vehicle 30, the offset of the load-carrying element 413 of the first arm member 41 may be different from the offset of the tubular member of the second vehicle 30. In other words, when the first vehicle 20 holding the second vehicle 30 performs an emergency brake or rapid acceleration, the load-carrying element 413 of the first arm member 41 may rotate due to the offset difference between the load-carrying element 413 of the first arm member 41 and the tubular member of the second vehicle 30. Furthermore, since the load-carrying element 413 of the first arm member 41 may rotate due to this offset difference, the pivot rotation element 416 may rotate due to the rotation of the load-carrying element 413 of the first arm member 41. Therefore, when the first vehicle 20 holding the second vehicle 30 performs an emergency brake or rapid acceleration, the first rotation element 412 and the pivot rotation element 416 may rotate due to the offset difference generated by inertia. Even if the load-carrying device 40 does not include the first rotation element 412 for rotating the load-carrying element 413 along the first rotation axis and the pivot rotation element 416 for rotating the first arm member 41, the load-carrying element 413 and the first arm member 41 may still rotate slightly due to inertia. However, repeated abnormal slight rotations may cause fatigue and eventually result in damage over time. Therefore, the load-carrying device 40 may need to overcome the problem of inertia.

[0141] Please refer to Figure 12 , the structure of the rotation fixing part (for example: the second rotation fixing unit 41211) and the rotation engaging part (for example: the second rotation engaging unit 41231) formed by the connecting part 4121 and the combining part 4123 allows the connecting part 4121 to switch between allowing rotation and not allowing rotation. Therefore, when the load-carrying element 413 tends to rotate laterally due to the offset difference generated by inertia, the structure of the rotation fixing part and the rotation engaging part of the connecting part 4121 and the combining part 4123 can fix both the longitudinal and lateral directions of the load-carrying element 413 to prevent the offset difference from causing the lateral rotation of the load-carrying element 413.

[0142] Furthermore, please refer to Figure 8 and Figure 9 , the structure of the rotation fixing part and the rotation engaging part formed by the pivot rotation element 416 and the pivot control element 423 allows the first arm member 41 to switch between allowing rotation and not allowing rotation. Therefore, when the first arm member 41 tends to rotate due to the offset difference generated by inertia, the structure of the rotation fixing part and the rotation engaging part of the pivot rotation element 416 and the pivot control element 423 can fix the orientation of the first arm member 41 to prevent the offset difference from causing the rotation of the first arm member 41.

[0143] The embodiments shown and described above are merely examples. Many details are often found in the art. Thus, many such details are neither shown nor described. Although many features and advantages of the present disclosure have been set forth in the foregoing description together with details of the structure and function of the present disclosure, the present disclosure is illustrative only and changes in details may be made. Accordingly, it is to be understood that the above-described embodiments may be modified within the scope of the claims.

Claims

1. A carrying device, which can be mounted on a first vehicle to hold a second vehicle different from the first vehicle, characterized in that, The carrying device includes: a support member having a plurality of receiving elements for supporting the second vehicle; and an arm member coupled to the support member and located between the plurality of receiving elements, the arm member further including: a carrying element configured to hold the second vehicle; a first rotating element coupled to the carrying element and configured to rotate the carrying element along a first rotation axis; a first locking element configured to control whether the first rotating element allows the carrying element to rotate along the first rotation axis; and a column element coupled to the first rotating element and a pivot control element of the support member, wherein, the pivot control element is perpendicular to the first rotation axis, and the column element is pivotally rotatable about the pivot control element of the support member to allow the arm member to rotate between a loading position and an unloading position.

2. The carrying device according to claim 1, wherein: the arm member rotates to the loading position to hold the second vehicle on the support member, and when the second vehicle is being loaded onto the support member along the plurality of receiving elements, the carrying element is rotated by the first rotating element along the first rotation axis to a release position to prevent the second vehicle from contacting the arm member in the loading position.

3. The bearing device according to claim 1, wherein, The arm member further includes: a pivot rotating element coupled to the pivot control element of the support member to rotate between the loading position and the unloading position, wherein: when the second vehicle is held by the carrying element, the pivot control element of the support member restricts a rotation of the pivot rotating element, and when the first vehicle is moving along a vehicle orientation, the rotation of the pivot rotating element is restricted to prevent the second vehicle from shifting along the vehicle orientation.

4. The carrier device according to claim 1, wherein, The arm member further includes: a height adjustment element configured to adjust an element height of the carrying element to correspond to a vehicle height of the second vehicle.

5. The bearing device according to claim 4, characterized in that, The arm member further includes: a second locking element configured to control whether the height adjustment element allows adjustment of the element height of the carrying element, wherein the second locking element is integrally formed with or formed separately from the first locking element.

6. The carrying device according to claim 1, characterized in that, The carrying element further includes: a base member; and a holding member coupled to the base member, wherein the holding member is movable to tighten or loosen a tubular member of the second vehicle.

7. The bearing device according to claim 6, characterized in that, The arm member further includes: a second rotating element coupled to the carrying element and the first rotating element, wherein the second rotating element is rotatable to rotate the base member along a second rotation axis to adjust an orientation of the carrying element to correspond to a tubular orientation of the tubular member, wherein the second rotation axis is perpendicular to the first rotation axis.

8. The carrier device according to claim 7, wherein The arm member further includes: a third locking element configured to control whether the second rotating element allows adjustment of the orientation of the carrying element, wherein the third locking element is integrally formed with or formed separately from the first locking element.

9. The carrying device according to claim 1, wherein: When the first locking element is in an unlocked state, the first rotating element is rotatable to allow the carrier element to rotate along the first rotation axis to be perpendicular to the pivot control element, and When the second vehicle is being loaded onto the support member, the carrier element is rotated along the first rotation axis to be perpendicular to the pivot control element to prevent the second vehicle from contacting the arm member.

10. The carrier device according to claim 1, wherein: When the first locking element is in a locked state, the first locking element restricts a rotation of the first rotating element, and When the first vehicle is moving along the vehicle orientation, the rotation of the first rotating element is restricted to prevent the second vehicle from deviating along a vehicle orientation.

11. The carrying device according to claim 1, characterized in that, The support member further includes: A receiving element coupled to one of the plurality of receiving elements, wherein when the arm member is in the removal position, the receiving element receives the arm member.

12. The carrying device according to claim 1, characterized in that, The support member further includes: A rotating element coupled to one of the plurality of receiving elements, wherein when the rotating element is placed on a surface, the carrier device can move through the rotating element.

13. A vehicle capable of carrying a vehicle, characterized in that, The vehicle includes: A first vehicle; and A carrier device, the carrier device being the carrier device according to any one of claims 1-12 and coupled to the first vehicle to hold a second vehicle different from the first vehicle.

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