Fixing devices and carriers

Abstract

Provision of fixing devices. [Solution] The fixing device includes an engagement mechanism provided on one of the load receiving device and the passenger device, and an engagement seat provided on the other of the load receiving device and the passenger device. The engagement mechanism is provided with a first locking member that is movable between a locked position and an unlocked position, and the engagement seat is provided with a second locking member that can be locked to the first locking member, and the engagement mechanism engages with the engagement seat. The engagement mechanism includes an unlocking and holding mechanism, which restricts the first locking member to the locked position when it is in the locked position, and restricts the first locking member to the unlocked position when it is in the unlocked position. When the first locking member is in the locked position, it prevents the engagement mechanism from disengaging from the engagement seat, and when the first locking member is in the unlocked position, it allows the engagement mechanism to disengage from the engagement seat.

Description

Technical Field

[0001] The present invention relates to a riding device and a load receiving device, and more specifically, to a fixing device for detachably fixing the load receiving device to the riding device.

Background Art

[0002] In daily life, for example, various riding devices such as a rack, a baby stroller, or a small cart for buying vegetables may be used. A load receiving device for placing people or objects such as a child seat, a reclining seat for a child, or a vegetable basket is attached to the riding device. However, in conventional riding devices, for example, since the load receiving device and the riding device are fixed, it becomes impossible to separate them, or although the load receiving device is detachably attached to the riding device, the attachment and removal become inconvenient. For example, when a user removes the load receiving device from the riding device, it is necessary to unlock and remove the load receiving device, resulting in drawbacks such as very inconvenient operation (see, for example, U.S. Patent Application Publication No. 2007 / 0187914).

[0003] Therefore, in order to avoid the above problems existing in the prior art, it is necessary to develop a fixing device for detachably fixing the load receiving device to the riding device.

[0004] The above description of the prior art only provides the background art, and it is not recognized that the above prior art constitutes the prior art of the present invention. Also, any description of the above prior art should not be interpreted as any part of the present invention.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The object of the present invention is to provide a fixing device that detachably secures a load receiving device to a passenger vehicle, wherein once the user performs an unlocking operation, the fixing device remains unlocked even if the user does not remove the load receiving device from the passenger vehicle, and thereafter, when the user removes the load receiving device, there is no need to repeat the unlocking operation. [Means for solving the problem]

[0006] As embodied and outlined herein, in order to realize these and other advantages and in accordance with the objectives of the present invention, a fastening device is provided for detachably fastening a load-receiving device to a passenger device. The fastening device includes an engagement mechanism provided on one of the load-receiving device and the passenger device, and an engagement seat provided on the other of the load-receiving device and the passenger device, wherein when the engagement mechanism is engaged with the engagement seat, the engagement mechanism and the engagement seat are lockable or unlockable, wherein the engagement mechanism is provided with an unlock-holding mechanism, and when the engagement mechanism and the engagement seat are unlocked, the unlock-holding mechanism can maintain the engagement mechanism and the engagement seat in an unlocked state.

[0007] In one embodiment, the engagement mechanism is provided with a first locking member that is movable between a locked position and an unlocked position, and the engagement seat is provided with a second locking member that can lock onto the first locking member. When the first locking member is in the locked position, the first locking member is locked with the second locking member, thereby preventing the engagement mechanism from disengaging from the engagement seat. When the first locking member is in the unlocked position, the first locking member and the second locking member are unlocked, allowing the engagement mechanism to disengage from the engagement seat.

[0008] In one embodiment, the engagement mechanism further includes a release member provided in the engagement mechanism, the release member being able to move from a first position to a second position by being operated from outside the engagement mechanism, and when the release member moves from the first position to the second position, the release member can be driven so that the first locking member moves accordingly from the locked position to the unlocked position.

[0009] In one embodiment, the unlocking member is provided with a retaining joint, the unlocking retaining mechanism includes an unlocking retaining member located within the engagement mechanism, the unlocking retaining member includes a locking joint hole and an unlocking joint hole, the locking joint hole and the unlocking joint hole are located on the surface of the unlocking retaining member facing the unlocking member, and the unlocking retaining member can move between a detached position and a joined position, where, when the unlocking retaining member is in the detached position, neither the locking joint hole nor the unlocking joint hole of the unlocking retaining member is joined to the retaining joint, and when the unlocking retaining member is in the joined position, one of the locking joint hole and the unlocking joint hole of the unlocking retaining member is joined to the retaining joint, thereby restricting the unlocking member to the first position or the second position.

[0010] In one embodiment, when the unlocking and holding member is in the detached position, the unlocking and holding member moves away from the unlocking member at a predetermined distance.

[0011] In one embodiment, the unlocking retaining member further includes a boss, and when the unlocking retaining member is in the detached position, the boss extends to the outside of the engagement mechanism, and when the engagement mechanism engages with the engagement seat, the wall of the engagement seat presses against the boss, thereby moving the unlocking retaining member to the engagement position.

[0012] In one embodiment, a protruding rib is provided on the inner wall of the engagement seat corresponding to the boss, and when the engagement mechanism engages with the engagement seat, the protruding rib presses against the boss, thereby moving the unlocking and holding member to the joining position.

[0013] In one embodiment, an unlock-holding elastic member is connected to the unlock-holding member, and the unlock-holding elastic member drives the unlock-holding member to move to the release position.

[0014] In one embodiment, a locking joint hole and an unlocking joint hole are connected by a first notch, and the width of the first notch is smaller than the diameter of the locking joint hole and the diameter of the unlocking joint hole, and also smaller than the diameter of the retaining joint.

[0015] In one embodiment, at least the portion of the unlocking retaining member in which the first notch is formed is elastic, so that when the unlocking member moves from the first position to the second position due to an external force, the retaining joint portion provided on the unlocking member can move from the locking joint hole through the first notch to the unlocking joint hole against the resistance force.

[0016] In one embodiment, the engagement seat is a hollow housing having an opening, the second locking member is a locking hole located in the hollow housing, and the first locking member includes a locking projection that extends to the outside of the engagement mechanism to lock into the locking hole of the engagement seat, and can be unlocked from the locking hole of the engagement seat by retracting into the inside of the engagement mechanism, a first pivot located at one end of the first locking member and rotatably provided on the engagement mechanism so as to be able to rotate the first locking member around the first pivot between the locked position and the unlocked position, and a movable part located at the other end of the first locking member, wherein the movable part is driven by the unlocking member to rotate the first locking member from the locked position to the unlocked position, thereby causing the locking projection to retract into the inside of the engagement mechanism and be unlocked from the locking hole of the engagement seat.

[0017] In one embodiment, the unlocking member includes a pressing portion located at one end of the unlocking member and exposed to the outside of the engagement mechanism; a second pivot located in the middle of the unlocking member and rotatably provided on the engagement mechanism so as to be able to rotate the unlocking member around the second pivot between the first position and the second position; and a drive portion located at the other end of the unlocking member, which contacts the first locking member and is capable of driving the first locking member to move from the locked position to the unlocked position.

[0018] In one embodiment, the engaging seat is a hollow housing having an opening, the second locking member is a locking hole located in the hollow housing, and the first locking member includes a locking projection that extends to the outside of the engaging mechanism to lock into the locking hole of the engaging seat, and can be unlocked from the locking hole of the engaging seat by retracting into the inside of the engaging mechanism, a first pivot located in the middle of the first locking member and rotatably provided in a rotation hole of the engaging mechanism so as to allow the first locking member to rotate around the first pivot between a locked position and an unlocked position, and a pressing portion located at the other end of the first locking member and exposed to the outside of the engaging mechanism.

[0019] In one embodiment, the first locking member is provided with a retaining projection, and the unlocking retaining mechanism includes a locking retaining hole and an unlocking retaining hole provided at corresponding positions of the engagement mechanism, wherein when the first locking member is in the locked position, the retaining projection is located in the locking retaining hole, thereby restricting the first locking member to the locked position, and when the first locking member is in the unlocked position, the retaining projection is located in the unlocking retaining hole, thereby restricting the first locking member to the unlocked position, wherein the locking retaining hole and the unlocking retaining hole are connected by a second notch, and the width of the second notch is smaller than the diameter of the locking retaining hole and the diameter of the unlocking retaining hole, and also smaller than the diameter of the retaining projection.

[0020] In one embodiment, the portion of the engagement mechanism in which the second notch is formed is elastic, so that when the first locking member moves from the locked position to the unlocked position by an external force, the retaining projection can move from the lock retaining hole to the unlock retaining hole against the resistance force.

[0021] In one embodiment, the engagement seat is a hollow housing having an opening, and the engagement mechanism has a fixing portion and an engagement portion extending from the fixing portion, wherein the fixing portion is for fixing the engagement mechanism to the load receiving device, and the engagement portion can engage and disengage between the engagement mechanism and the engagement seat by entering the interior of the hollow housing through the opening and exiting the interior of the hollow housing.

[0022] In one embodiment, there are multiple engagement seats or engagement mechanisms fixed to the cart, and each of the multiple engagement seats or engagement mechanisms is fixed to a different position on the cart, thereby allowing the load receiving device to be fixed to different positions on the cart.

[0023] In one embodiment, a spring positioning member is provided at the bottom of the engagement mechanism, a positioning elastic member is connected to the spring positioning member, and when the engagement mechanism is engaged with the engagement seat and the first locking member and the second locking member are locked, the spring positioning member is retracted into the engagement mechanism and the positioning elastic member is compressed, and when the first locking member and the second locking member are unlocked, the positioning elastic member can push the engagement mechanism and the load receiving device upward.

[0024] In another embodiment, the present invention provides a ride-on device using the aforementioned fixing device.

[0025] In another aspect, the present invention provides a load receiving device using the aforementioned fixing device.

[0026] The beneficial effect of the present invention is that, according to the fixing device of the present invention, the load receiving device can be more securely fixed to the cart, and once the user performs the unlocking operation, the fixing device remains in the unlocked state even if the user does not remove the load receiving device from the riding device, and thereafter, when the user removes the load receiving device, there is no need to repeat the unlocking operation.

[0027] The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention with reference to the accompanying drawings.

[0028] The accompanying drawings, which are included herein to provide a further understanding of the present invention, are incorporated in and constitute a part of this specification. The accompanying drawings illustrate embodiments of the present invention and are used in conjunction with the following description to explain the concept of the present invention.

Brief Description of the Drawings

[0029] [Figure 1A] It is a perspective view of a load receiving device after being fixed to a cart by a fixing device according to the present invention. [Figure 1B] It is a perspective view of a load receiving device before being fixed to a rack by a fixing device according to the present invention. [Figure 2] It is a perspective view after the load receiving device is removed from the cart in FIG. 1A. [Figure 3] It is a perspective view of the load receiving device in FIG. 1A. [Figure 4] It is a perspective view of the frame structure of the load receiving device in FIG. 1A. [Figure 5] It is a perspective view of the frame structure of a load receiving device fixed to a cart by a fixing device according to the present invention. [Figure 6] It is an exploded perspective view of the frame structure of the load receiving device and the cart. [Figure 7] It is a view showing an engaging seat of a fixing device according to an embodiment of the present invention. [Figure 8] It is a partial cross-sectional view showing the state of the internal structure of an engaging mechanism according to the first preferred embodiment of the present invention when the first locking member is in the locked position. [Figure 9] It is a partial cross-sectional view showing the state of the internal structure of an engaging mechanism according to the first preferred embodiment of the present invention when the first locking member is in the unlocked position. [Figure 10] It is an exploded perspective view showing the internal structure of an engaging mechanism according to the first preferred embodiment of the present invention. [Figure 11] This is a perspective view of a lock release member according to a first preferred embodiment of the present invention. [Figure 12] This is a perspective view of a lock release and holding member according to a first preferred embodiment of the present invention. [Figure 13] This is a partial cross-sectional view showing the state in which the locking joint hole of the lock release holding member according to a first preferred embodiment of the present invention is joined to the holding joint. [Figure 14] This is a partial cross-sectional view showing the state in which the unlocking joint hole of the unlocking holding member according to a first preferred embodiment of the present invention is joined to the holding joint. [Figure 15] This is a partial cross-sectional view showing the state in which the lock release holding member according to a first preferred embodiment of the present invention is in the detached position. [Figure 16] This is a partial cross-sectional view showing the state in which the lock release holding member according to a first preferred embodiment of the present invention is positioned at the joining position. [Figure 17] This is a perspective view of the first locking member according to a second preferred embodiment of the present invention. [Figure 18] This is a perspective view showing the internal structure of an engagement mechanism according to a second preferred embodiment of the present invention. [Figure 19] This is a partial cross-sectional view showing the internal structure of the engagement mechanism according to a second preferred embodiment of the present invention when the first locking member is in the locked position. [Figure 20] This is a partial cross-sectional view showing the internal structure of the engagement mechanism according to a second preferred embodiment of the present invention when the first locking member is in the unlocked position. [Figure 21] This is a perspective view showing the positioning member of the spring within the engagement mechanism. [Figure 22] This is an exploded perspective view showing the spring positioning member and engagement mechanism. [Modes for carrying out the invention]

[0030] The present invention will be described in detail below with reference to the drawings.

[0031] As shown in Figures 1A and 1B, the present invention relates to a fixing device for detachably fixing a load receiving device 10 to a passenger vehicle.

[0032] The ride-on device may be a variety of tools, such as a cart 20 (see Figure 1A), a rack 30 (see Figure 1B), or a small cart for buying vegetables. Here, the rack 30 in Figure 1B is a support device for a child to ride on, and may be, for example, a high chair frame, and includes two legs 31, 32 and a connecting part 33 that connects the two legs 31, 32. The angle between the two legs 31, 32 can be changed by rotating them relative to the connecting part 33. The height of the connecting part 33 can be adjusted by keeping the two legs 31, 32 at any angle. However, for the sake of simplicity, the ride-on device will be described below using the cart 20 in Figure 1A as an example.

[0033] The load-receiving device 10 is attached to the cart 20 and is a mounting structure for people and luggage, and may be, for example, a child seat, a child reclining seat, or a storage basket. The load-receiving device 10 is detachably fixed to the cart 20 by a fixing device, ensuring that when the fixing device is locked, the load-receiving device 10 cannot be detached from the cart 20. This ensures that people and luggage placed on the load-receiving device 10 will not fall. Furthermore, when the fixing device is unlocked, the load-receiving device 10 can be easily removed from the cart 20.

[0034] Next, the fixing device according to the present invention will be described in detail.

[0035] As can be best seen from Figures 2 and 3, the fixing device according to the present invention includes two parts fixed to the load receiving device 10 and the cart 20, namely, an engagement mechanism 100 and an engagement seat 200. The load receiving device 10 is detachably fixed to the cart 20 by the engagement mechanism 100 being detachably engaged with the engagement seat 200. In the drawings, a configuration is shown in which the engagement seat 200 is fixed to the cart 20 and the engagement mechanism 100 is fixed to the load receiving device 10, but a configuration in which the engagement seat 200 is fixed to the load receiving device 10 and the engagement mechanism 100 is fixed to the cart 20 is also possible. It should be understood that such substitution does not affect the effectiveness of the present invention as long as the engagement mechanism 100 is detachably engaged with the engagement seat 200. For convenience of explanation, the following description will use the case in which the engagement seat 200 is fixed to the cart 20 and the engagement mechanism 100 is fixed to the load receiving device 10 as an example.

[0036] In the embodiment shown in Figure 1B, the engagement seat 200 can be fixed to the connection portion 33 of the rack 30. As a result, when the engagement mechanism 100 fixed to the load receiving device 10 is engaged with the engagement seat 200, the rack 30 can stably support the load receiving device 10.

[0037] Furthermore, the present invention allows the use of multiple engagement seats 200. Each of these engagement seats 200 is fixed to multiple positions on the cart 20. For example, in the embodiment shown in Figures 1A and 2, one pair (2) of engagement seats 200 is fixed to the handle frame 21 of the cart 20, and another pair (2) of engagement seats 200 is fixed to the front wheel frame 22 of the cart 20. Alternatively, another pair (2) of engagement seats 200 can be fixed to the rear wheel frame 23 of the cart 20. By using multiple engagement seats 200 and fixing the multiple engagement seats 200 to multiple positions on the cart 20, the load receiving device 10 can be fixed to different positions on the cart 20. This makes it possible to satisfy different user needs.

[0038] Similarly, the present invention allows for the use of multiple engagement mechanisms 100. Each of these engagement mechanisms 100 is fixed to multiple positions on the load-receiving device 10. Of course, from a cost standpoint, as shown in Figures 1A and 3, the load-receiving device 10 is usually stably supported by using a set (2) of engagement mechanisms 100 fixed to each side of the load-receiving device 10. Preferably, as can be best seen from Figures 4 to 6, the engagement mechanisms 100 are fixed to the frame structure 11 of the load-receiving device 10.

[0039] The following describes how the engagement mechanism 100 is detachably engaged with the engagement seat 200.

[0040] The fitting between the engagement mechanism 100 and the engagement seat 200 is a concave-concave fitting. In such a concave-concave fitting, engagement and disengagement between the two can be achieved by one convex portion being inserted into the other concave portion or retracting from the other concave portion.

[0041] Figures 1A to 7 show an engagement mechanism 100 and an engagement seat 200 according to a preferred embodiment of the present invention. The engagement seat 200 is a hollow housing 202 having an opening 201 (see Figure 7), which constitutes the recess in the concave-concave fitting. The engagement mechanism 100 has a fixing part 101 and an engagement part 102 (see Figures 3 and 4), which constitute the convex part in the concave-concave fitting. Here, the fixing part 101 is for fixing the engagement mechanism 100 to the load receiving device 10, and the engagement part 102 enters the interior of the hollow housing 202 through the opening 201, thereby enabling engagement between the engagement mechanism 100 and the engagement seat 200 as shown in Figure 5. On the other hand, the engagement part 102 can also exit from the interior of the hollow housing 202, thereby enabling separation between the engagement mechanism 100 and the engagement seat 200 as shown in Figure 6. The fixing part 101 and the engagement part 102 can be integrally molded, but they can also be manufactured individually and then assembled. The engagement mechanism 100 includes a housing for accommodating each component. The housing is provided with an opening, so that some of the components housed inside are exposed to the outside through the opening or interact with other components other than the engagement mechanism 100.

[0042] The engaging seat 200 and the engaging mechanism 100 may also use other interlocking and disengaging structures other than those in the preferred embodiment. For example, the engaging seat 200 may have a groove, and the engaging mechanism 100 may have a projection, the projection of which can be inserted into or withdrawn from the groove, thereby enabling engagement and disengagement between the engaging mechanism 100 and the engaging seat 200.

[0043] After the engagement mechanism 100 engages with the engagement seat 200, in order to ensure that the two do not inadvertently separate, it is necessary to provide a locking member between them so that the two can be locked or unlocked. In this invention, the fitting method in which the engagement mechanism 100 is inserted into the engagement seat 200 and the engagement mechanism 100 can freely retract from the engagement seat 200 is called "engagement." Furthermore, the fitting method in which the engagement mechanism 100 and the engagement seat 200 are held in an engaged state by a locking member and the engagement mechanism 100 cannot freely retract from the engagement seat 200 is called "locking." The locking member between the engagement mechanism 100 and the engagement seat 200 will be described in detail below.

[0044] According to the present invention, the engagement mechanism 100 is provided with a first locking member 110 that is movable between a locked position and an unlocked position. The engagement seat 200 is provided with a second locking member 210 that can lock onto the first locking member 110. When the first locking member 110 is in the locked position, the first locking member 110 and the second locking member 210 are locked together, preventing the engagement mechanism 100 from disengaging from the engagement seat 200. When the first locking member 110 is in the unlocked position, the first locking member 110 and the second locking member 210 are unlocked, allowing the engagement mechanism 100 to disengage from the engagement seat 200.

[0045] Figures 7 to 10 show a first locking member 110 and a second locking member 210 according to a first preferred embodiment of the present invention. Here, as shown in Figures 7 to 9, the second locking member 210 is a locking hole located in the hollow housing 202 of the engagement seat 200. The first locking member 110 includes a locking projection 111 that can be locked into the locking hole of the engagement seat 200 by extending to the outside of the engagement mechanism 100, or unlocked from the locking hole of the engagement seat 200 by retracting into the inside of the engagement mechanism 100.

[0046] Furthermore, a locking elastic member 112 is connected to the first locking member 110. The locking elastic member 112 drives the first locking member 110 to move to the locked position, that is, drives the locking projection 111 to extend outside the engagement mechanism 100 so that it locks into the locking hole of the engagement seat 200. The locking elastic member 112 can be made of an elastic material such as a spring or elastic rubber.

[0047] In a first preferred embodiment, when the user secures the load receiving device 10 to the cart 20, the engagement mechanism 100 engages with the engagement seat 200. In this process, the walls of the engagement seat 200 press against the locking projection 111, causing the locking projection 111 to be pulled into the engagement mechanism 100 against the elastic force of the locking elastic member 112. When the engagement mechanism 100 is fully engaged with the engagement seat 200, the first locking member 110 tends to move to the locked position due to the elastic force of the locking elastic member 112. However, when the locking projection 111 aligns with the second locking member 210, i.e., the locking hole, in the engagement seat 200, the locking projection 111 is no longer subjected to pressure from the walls of the engagement seat 200, and the first locking member 110 moves to the locked position. The locking projection 111 extends from the locking hole in the engagement seat 200 and locks into the locking hole, thereby locking the engagement mechanism 100 to the engagement seat 200, and consequently locking the load receiving device 10 to the cart 20.

[0048] In addition, other locking fitting structures other than the first preferred embodiment can be used between the first locking member 110 and the second locking member 210. For example, the second locking member 210 is a locking projection located on the inner wall of the engagement seat 200, and a corresponding locking recess is provided on the first locking member 110 that can engage with the locking projection. Alternatively, the second locking member 210 is a positive tapered projection located on the inner wall of the engagement seat 200, and a corresponding reverse tapered projection or the like that can engage with the locking projection is provided on the first locking member 110. In these locking fitting structures, by similarly providing a locking elastic member 112, the first locking member 110 can be driven so that it approaches the second locking member 210 and locks into the second locking member 210.

[0049] Furthermore, the movement of the first locking member 110 between the locked position and the unlocked position can be achieved in multiple ways.

[0050] As shown in Figures 8 to 10, the first locking member 110 according to a first preferred embodiment of the present invention further includes a first pivot 113 located at one end of the first locking member 110. The first pivot 113 is rotatably provided on the engagement mechanism 100, preferably between a fixed portion 101 and an engagement portion 102 of the engagement mechanism 100, thereby allowing the first locking member 110 to rotate around the first pivot 113 between a locked position and an unlocked position. Preferably, the first locking member 110 further includes a movable portion 114 located at the other end of the first locking member 110.

[0051] The first locking member 110 is always held in the locked position by the locking elastic member 112. When the user applies force to the movable part 114, the first locking member 110 rotates around the first pivot 113 from the locked position to the unlocked position, resisting the elastic force of the locking elastic member 112. This allows the locking projection 111 to retract into the engagement mechanism 100 and be unlocked from the second locking member 210 of the engagement seat 200.

[0052] To facilitate the user applying force to the movable portion 114 of the first locking member 110, the engagement mechanism 100 further includes a release member 130. The release member 130 can be moved between a first position and a second position by being operated from outside the engagement mechanism 100, preferably by being pressed from outside the engagement mechanism 100. The release member 130 is also configured such that, when it contacts the first locking member 110 and rotates from the first position to the second position, it drives the first locking member 110 to move from the locked position to the unlocked position; when the release member 130 is in the second position, it can hold the first locking member 110 in the unlocked position, as shown in Figure 9; and when the release member 130 is in the first position, it cannot prevent the first locking member 110 from moving from the locked position to the unlocked position.

[0053] Figures 8 to 11 show a lock release member 130 according to a first preferred embodiment of the present invention. Here, the lock release member 130 includes a pressing portion 131 located at one end of the lock release member 130 and exposed to the outside of the engagement mechanism 100 so that it can be easily pressed by the user, a second pivot 132 located in the middle of the lock release member 130 and rotatably provided on the engagement mechanism 100, preferably provided between the fixed portion 101 and the engagement portion 102 of the engagement mechanism 100, thereby rotating the lock release member 130 from a first position to a second position around the second pivot 132, and a drive portion 133 located at the other end of the lock release member 130. The drive unit 133 contacts the movable portion 114 of the first locking member 110, and when the unlocking member 130 rotates from the first position to the second position, the drive unit 133 moves the movable portion 114 of the first locking member 110, thereby driving the first locking member 110 to move from the locked position to the unlocked position; when the unlocking member 130 is in the second position, the drive unit 133 can maintain the first locking member 110 in the unlocked position, as shown in Figure 9; and when the unlocking member 130 is in the first position, the drive unit 133 is configured not to prevent the first locking member 110 from moving from the locked position to the unlocked position. Although one embodiment of the operation method between the unlocking member 130 and the first locking member 110 has been described above, the present invention is not limited thereto. As will be discussed later, both the unlocking member 130 and the first locking member 110 can use other structures capable of realizing their functions, so other operating mechanisms also exist between the unlocking member 130 and the first locking member 110.

[0054] In the first preferred embodiment, when a user attempts to remove the load receiving device 10 from the cart 20, the engagement mechanism 100 needs to be disengaged from the engagement seat 200. At this time, as shown in Figure 8, the unlocking member 130 is in the first position and the first locking member 110 is in the locked position. When the user presses the pressing portion 131 of the unlocking member 130 along the direction of the arrow, the pressing portion 131 moves to the left due to the pressing force, causing the unlocking member 130 to move from the first position to the second position around the second pivot 132. This moves the drive unit 133 to the right, which moves the movable portion 114 of the first locking member 110 to the right, and the lock projection 111 moves to the right as well, unlocking it from the lock hole of the engagement seat 200. This moves the first locking member 110 to the unlocked position, as shown in Figure 9. In this way, the engagement mechanism 100 can be disengaged upward from the engagement seat 200, and the load receiving device 10 can also be removed from the cart 20.

[0055] To allow the release member 130 to return from the second position to the first position if the user does not press it any further, a return elastic member 134 can be connected to the release member 130, as can be best seen from Figures 8 to 10. The return elastic member 134 can be a spring or an elastic rubber or other elastic material.

[0056] In the present invention, the embodiment of moving the first locking member 110 from the locked position to the unlocked position is not limited to the above embodiment.

[0057] For example, the first locking member 110 is not limited to rotational movement, but can also move horizontally. For instance, by providing a guide rail mechanism between the first locking member 110 and the inner wall of the engagement mechanism 100, the first locking member 110 can be moved horizontally between a locked position and an unlocked position.

[0058] Furthermore, the unlocking member 130 is not limited to rotational movement, but can also move horizontally. For example, by providing a guide rail mechanism between the unlocking member 130 and the inner wall of the engagement mechanism 100, the unlocking member 130 can be moved horizontally between a first position and a second position. This horizontal movement of the unlocking member 130 allows the first locking member 110 to be moved between a locked position and an unlocked position.

[0059] Furthermore, for example, without providing a separate unlocking member 130, the first locking member 110 is provided with an extension portion that can extend to the outside of the engagement mechanism 100. This allows the user to move the first locking member 110 between the locked position and the unlocked position by operating the first locking member 110 with the extension portion. Figures 17 to 20 show a second preferred embodiment of the present invention. In this preferred embodiment, without providing a separate unlocking member, in other words, the unlocking member is formed as part of the first locking member. Here, the locking projection 111' is located at one end of the first locking member 110'. The locking projection 110' can similarly be locked into the locking hole of the engagement seat 200 by extending to the outside of the engagement mechanism 100, or unlocked from the locking hole of the engagement seat 200 by retracting into the inside of the engagement mechanism 100. The first pivot 113' is located in the middle part of the first locking member 110'. The first pivot 113' is rotatably mounted in the rotation hole 103 of the engagement mechanism 100 (see Figure 16), allowing the first locking member 110' to rotate around the first pivot 113' between a locked position and an unlocked position. The other end of the first locking member 110' is provided with a pressing portion 131' that extends to the outside of the engagement mechanism 100. The pressing portion 131' performs the function of unlocking.

[0060] Figure 19 shows the first locking member 110 in the locked position. When the user presses the pressing portion 131' of the first locking member 110' along the direction of the arrow, the pressing portion 131' moves to the left due to the pressing force, and the first locking member 110' rotates around the first pivot 113' from the locked position to the unlocked position. As a result, the locking projection 111' moves to the right and is unlocked from the locking hole of the engagement seat 200, placing the first locking member 110' in the unlocked position, as shown in Figure 20.

[0061] To allow the first locking member 110' to return from the unlocked position to the locked position if the user does not press it any further, a return elastic member 134' can be connected to the first locking member 110', as can be best seen in Figures 19, 20, and 22. The return elastic member 134' can be an elastic member such as a spring or elastic rubber.

[0062] The following describes the key design features of this invention.

[0063] To further facilitate the user's removal of the loading device 10 from the cart 20, the present invention provides, in particular, an unlocking and holding mechanism on the engagement mechanism 100. When the engagement mechanism 100 and the engagement seat 200 are unlocked, the unlocking and holding mechanism can hold the engagement mechanism 100 and the engagement seat 200 in the unlocked state. Specifically, after the user moves the first locking member 110 to the unlocked position by pressing the pressing portion 131, the unlocking and holding mechanism can maintain the first locking member 110 in the unlocked position. In such a case, the first locking member 110 and the second locking member 210 remain unlocked even without the user pressing the pressing portion 131 of the unlocking member 130 any further. Therefore, although the engagement mechanism 100 is located on the engagement seat 200, the two can detach at any time, allowing the user to directly remove the loading device 10 from the cart 20. This avoids the inconvenience of having to perform the unlocking operation again or to unlock the securing device and remove the load receiving device at the same time.

[0064] Figures 10, 12 to 16 show a lock release and holding mechanism according to a first preferred embodiment of the present invention. The lock release and holding mechanism includes a lock release and holding member 120 located within the engagement mechanism 100. The lock release member 130 is provided with a holding joint 135. The lock release and holding member 120 includes a lock joint hole 121 and a lock release joint hole 122. As can be best seen from Figure 12, both the lock joint hole 121 and the lock release joint hole 122 are located on the surface of the lock release and holding member 120 facing the lock release member 130, and correspond to the positions of the holding joint 135 when the lock release member 130 is in a first position and a second position, respectively.

[0065] The retaining joint 135 can be made of various structures, such as protrusions or short columns, as long as it can engage with the locking joint hole 121 and the unlocking joint hole 122.

[0066] The unlocking and holding member 120 can move between the detached position and the joined position. When the unlocking and holding member 120 is in the detached position, neither the lock joining hole 121 nor the unlocking and joining hole 122 of the unlocking and holding member 120 is joined to the holding joining portion 135, so at this time the movement of the unlocking member 130 is not restricted by the unlocking and holding member 120.

[0067] When the unlocking retaining member 120 is in the joining position, the lock joining hole 121 of the unlocking retaining member 120 is joined to the retaining joining portion 135, thereby restricting the unlocking member 130 to the first position, as shown in Figure 13. Alternatively, the unlocking joining hole 122 is joined to the retaining joining portion 135, thereby restricting the unlocking member 130 to the second position, as shown in Figure 14. In both of these cases, the movement of the unlocking member 130 is restricted by the unlocking retaining member 120.

[0068] The present invention enables the unlocking and holding member 120 to move between a detached position and a locked position using multiple methods. For example, a member similar to the unlocking member 130 can be provided. This member is linked to the unlocking and holding member 120 and has a portion exposed to the outside of the engagement mechanism 100, making it easy to operate the member from outside the engagement mechanism 100, thereby moving the unlocking and holding member 120 between the detached position and the locked position. Furthermore, for example, an extended portion can be provided on the unlocking and holding member 120. Since this extended portion can extend to the outside of the engagement mechanism 100, the user can operate the unlocking and holding member 120 using this extended portion to move it between the detached position and the locked position.

[0069] A first preferred embodiment of the present invention provides an automatic mechanism that enables the unlocking and holding member 120 to move between a detached position and a engaged position. The automatic mechanism can automatically move the unlocking and holding member 120 during the process in which the engagement mechanism 100 engages with the engagement seat 200 and the process in which it disengages from the engagement seat 200.

[0070] As can be best seen from Figures 10 and 12, the unlocking and holding member 120 includes a boss 124 that can extend outside the engagement mechanism 100. As can be best seen from Figures 10, 13, and 14, the unlocking and holding member 120 is connected to an unlocking and holding elastic member 125 that moves the unlocking and holding member 120 to a disengaged position. The unlocking and holding elastic member 125 can be an elastic member such as a spring or elastic rubber.

[0071] In the first preferred embodiment, if the user has not attached the load receiving device 10 to the cart 20, or if the load receiving device 10 is removed from the cart 20, as shown in Figure 15, the engagement mechanism 100 disengages from the engagement seat 200, the unlocking and holding member 120 moves to the disengaged position by the unlocking and holding elastic member 125, and the boss 124 extends outside the engagement mechanism 100. At this time, since the movement of the unlocking member 130 is not restricted by the unlocking and holding member 120, the unlocking member 130 can move between the first position and the second position.

[0072] When a user attaches the load receiving device 10 to the cart 20, in the process of the engagement mechanism 100 engaging with the engagement seat 200, the wall of the engagement seat 200 presses against the boss 124, causing the boss 124 to be pulled into the engagement mechanism 100. As a result, as shown in Figure 16, the unlocking retaining member 120 moves to the joining position, and the lock joining hole 121 is joined to the retaining joining portion 135.

[0073] As mentioned above, the unlocking member 130 contacts the first locking member 110, and when the unlocking member 130 is in the first position, the unlocking member 130 is positioned in such a way that it cannot prevent the first locking member 110 from moving from the locked position to the unlocked position. Therefore, even when the unlocking member 130 is restricted to the first position by the unlocking holding member 120 during the process of the user attaching the load receiving device 10 to the cart 20, the first locking member 110 can still move from the locked position to the unlocked position. Specifically, during the process of the engagement mechanism 100 engaging with the engagement seat 200, the wall of the engagement seat 200 presses against the locking projection 111 of the first locking member 110, causing the locking projection 111 to be pulled into the engagement mechanism 100 against the elastic force of the locking elastic member 112, thereby moving the first locking member 110 from the locked position to the unlocked position.

[0074] On the other hand, as mentioned above, the unlocking member 130 and the first locking member 110 are further installed so that when the unlocking member 130 is in the second position, the unlocking member 130 can maintain the first locking member 110 in the unlocked position. Therefore, when a user tries to remove the load receiving device 10 from the cart 20, it is necessary to unlock the connection between the engagement mechanism 100 and the engagement seat 200. By operating the unlocking member 130, the user can move the unlocking member 130 to the second position, and the first locking member 110 can also move to the unlocked position along with the movement of the unlocking member 130. In such a case, when the unlocking member 130 is restricted to the second position by the unlocking holding member 120, the first locking member 110 is also restricted to the unlocked position. This function allows the user to unlock and hold the engagement mechanism 100 and engagement seat 200 in the unlocked state by simply operating the unlocking member 130 once, for example by pressing the pressing portion 131 of the unlocking member 130 once. After that, the user does not need to operate the unlocking member 130 again, and although the engagement mechanism 100 is engaged with the engagement seat 200, the user can remove the load receiving device 10 from the cart 20 at any time, further enhancing user convenience.

[0075] More preferably, a convex rib 220 is provided on the inner wall of the engagement seat 200 corresponding to the boss 124. When the engagement mechanism 100 engages with the engagement seat 200, the convex rib 220 presses against the boss 124, thereby moving the unlocking retaining member 120 to the joining position. By providing the convex rib 220, the movable stroke of the unlocking retaining member 120 is increased. This ensures that the locking joining hole 121 and the unlocking joining hole 122 are joined to the retaining joining portion 135.

[0076] When using such an automatic system, the unlocking and holding member 120 can automatically move between the release position and the engagement position due to the pressing force between the wall of the engagement seat 200 and the boss 124 and the force of the unlocking and holding elastic member 125, thus eliminating the need for user operation. While this offers convenience, it presents a problem: when the engagement mechanism 100 is fully engaged with the engagement seat 200, the first locking member 110 returns to the locked position due to the elastic force of the elastic member 112, and the unlocking and holding member 120 moves to the engagement position as its boss 124 is pressed against the wall of the engagement seat 200, thereby engaging the locking hole 121 of the unlocking and holding member 120 with the holding joint 135. At this time, the unlocking member 130 is restricted to the first position by the unlocking and holding member 120, but cannot move to the second position, so it cannot be driven to move the first locking member 110 from the locked position to the unlocked position. In other words, the engagement mechanism 100 and the engagement seat 200 cannot be unlocked.

[0077] To solve the above problem, as shown in Figures 12 to 14, the first notch 123 connects the locking connection hole 121 and the unlocking connection hole 122, allowing the retaining joint 135 to move from the locking connection hole 121 to the unlocking connection hole 122 via the first notch 123. Furthermore, the width of the first notch 123 is smaller than the diameters of the locking connection hole 121 and the unlocking connection hole 122, and also smaller than the diameter of the retaining joint 135. In this way, by preventing the retaining joint 135 from easily moving between the locking connection hole 121 and the unlocking connection hole 122 via the first notch 123, the function of the unlocking retaining member 120 being able to restrict the unlocking member 130 to the first or second position is ensured.

[0078] At least the portion of the unlocking retaining member 120 that forms the first notch 123 is elastic, so that the retaining joint 135 can move from the locking joint hole 121 through the first notch 123 to the unlocking joint hole 122 only when resisting a corresponding resistance force. As a result, the retaining joint 135 provided on the unlocking member 130 can move from the locking joint hole 121 through the first notch 123 to the unlocking joint hole 122 only when the unlocking member 130 moves from the first position to the second position due to an external force applied by the user.

[0079] Here, the unlocking and holding member 120 can be configured to be elastic as a whole, or it can be configured to be elastic only in the portion where the first notch 123 is formed. That is, the unlocking and holding member 120 may consist of at least two parts, the portion where the first notch 123 is formed may be elastic, and the other parts may or may not be elastic.

[0080] The preferred embodiment, in which the locking connection hole 121 and the unlocking connection hole 122 are connected by the first notch 123, is mainly for the automatic system embodiment in which the unlocking holding member 120 described above is automatically moved between the detached position and the joined position (that is, the unlocking holding member 120 can be automatically moved between the detached position and the joined position by the pressing force between the wall of the engagement seat 200 and the boss 124 and the force acting on the unlocking holding elastic member 125, so that the user does not need to operate it manually). However, in other embodiments, it is not necessarily required to use this embodiment. For example, in order to enable the unlocking holding member 120 to move between the detached position and the joined position, a member similar to the unlocking member 130 can be provided. This member is linked to the unlocking holding member 120 and has a portion exposed to the outside of the engagement mechanism 100, making it easy to operate the member from outside the engagement mechanism 100, thereby enabling the unlocking holding member 120 to move between the detached position and the joined position. Furthermore, for example, the unlocking and holding member 120 may be provided with an extension that can extend outside the engagement mechanism 100, thereby allowing the user to move the unlocking and holding member 120 between the detached position and the engaged position by operating the unlocking and holding member 120 with the extension. In other embodiments where the user operates manually, the unlocking and holding member 120 does not automatically move between the detached position and the engaged position due to the pressing force between the wall of the engagement seat 200 and the boss 124 and the force acting on the unlocking and holding elastic member 125, so it is not necessary to use the preferred embodiment in which the first notch 123 is formed between the locking and engaging hole 121 and the unlocking and engaging hole 122.

[0081] Figures 17 to 20 show a lock release and holding mechanism according to a second preferred embodiment of the present invention. The lock release and holding mechanism includes a retaining projection 115 provided on the first locking member 110', and a lock retaining hole 104 and a lock release retaining hole 105 provided at corresponding positions on the engagement mechanism 100. Here, when the first locking member 110' is in the locked position, the retaining projection 115 is located in the lock retaining hole 104, thereby restricting the first locking member 110' to the locked position, as shown in Figure 19. When the first locking member 110 is in the unlocked position, the retaining projection 115 is located in the lock release retaining hole 105, thereby restricting the first locking member 110' to the unlocked position, as shown in Figure 20.

[0082] To enable the first locking member 110' to move between the locked and unlocked positions, as can be best seen from Figure 18, the locking retaining hole 104 and the unlocking retaining hole 105 are connected by a second notch 106, allowing the retaining projection 115 to move from the locking retaining hole 104 through the second notch 106 to the unlocking retaining hole 105. Furthermore, the width of the second notch 106 is smaller than the diameter of the locking retaining hole 104 and the unlocking retaining hole 105, and also smaller than the diameter of the retaining projection 115. In this way, by preventing the retaining projection 115 from easily moving between the locking retaining hole 104 and the unlocking retaining hole 105 through the second notch 106, the function of the unlocking retaining mechanism to restrict the first locking member 110' to either the locked or unlocked position is ensured.

[0083] At the same time, the portion of the engagement mechanism 100 in which the second notch 106 is formed is elastic, and for example, by forming an elastic finger portion, the retaining projection 115 can move from the locking retaining hole 104 through the second notch 106 to the unlocking retaining hole 105 only when resisting a corresponding resistance force. Thus, the retaining projection 115 provided on the first locking member 110' can move from the locking retaining hole 104 through the second notch 106 to the unlocking retaining hole 105 only when the first locking member 110' moves from the locked position to the unlocked position by an external force from the user.

[0084] Here, the fact that the portion of the engagement mechanism 100 in which the second notch 106 is formed is elastic means that the engagement mechanism 100 is composed of at least two parts, the portion in which the second notch 106 is formed is elastic, the housing of the engagement mechanism 100 is not elastic, and the other parts may or may not be elastic.

[0085] As shown in Figures 19 to 22, a spring positioning member 140 is provided at the bottom of the engagement mechanism 100. Referring to Figures 19, 20, and 22, a positioning elastic member 141 is connected to the spring positioning member 140. When the engagement mechanism 100 is engaged with the engagement seat 200 and the first locking member 110 is locked with the second locking member 210, as shown in Figure 19, the spring positioning member 140 is pulled into the engagement mechanism 100 and the positioning elastic member 141 is compressed. When the first locking member 110 and the second locking member 210 are unlocked, the positioning elastic member 141 can push the engagement mechanism 100 and the load receiving device 10 upward, as shown in Figure 20, making it even easier for the user to remove the load receiving device 10 from the cart 20.

[0086] The embodiments and advantages described herein are illustrative only and should not be considered as limitations on the present invention. The descriptions herein are illustrative and do not limit the scope of the claims. Various alternatives, improvements, and modifications will be obvious to those skilled in the art. The features, structures, methods, and other properties of the exemplary embodiments described herein can be combined in various ways to obtain other and / or substitute exemplary embodiments.

[0087] Since the features of the present invention can be embodied in various forms without departing from the characteristics of the present invention, the above embodiments are not limited to any of the above detailed descriptions, but should be interpreted broadly within the scope limited to the appended claims. Accordingly, it should be understood that all changes and modifications within the scope of the claims or equivalent scope are included in the appended claims. [Explanation of Symbols]

[0088] 10 Load receiving device 11 Frame Structure 20 carts 21 Handlebar Frame 22 Front wheel frame 23 Rear wheel frame 30 racks 31, 32 Legs 33 Connection part 100 Engagement mechanism 101 Fixed part 102 Engaging part 103 Rotating Hole 104 Locking holes 105 Lock release retaining hole 106 Second notch 110, 110' First locking member 111, 111' Locking protrusion 112, 112' Lock elastic member 113, 113' First Axis 114 Moving parts 115 Retaining protrusion 131' Pressing part 120 Lock release retaining member 121 Lock joint hole 122 Unlocking joint hole 123 First notch 124 Boss 125 Lock release holding elastic member 130 Lock release member 131 Pressing part 132 Second Axis 133 Drive unit 134, 134' Recovering elastic member 135 Retaining joint 140 Spring positioning member 141 Positioning elastic member 200 Engagement Seat 201 Aperture 202 Hollow Housing 210 Second locking member 220 Convex Rib

Claims

1. A fixing device for detachably securing a load receiving device to a passenger vehicle, An engagement mechanism provided in one of the load receiving device and the ride-on device, The load receiving device and the other of the passenger device include an engagement seat provided on the other, The engagement mechanism is provided with a first locking member that is movable between a locked position and an unlocked position, the engagement seat is provided with a second locking member that can be locked to the first locking member, and the engagement mechanism is engaged with the engagement seat. The engagement mechanism includes a lock release and holding mechanism. The unlocking and holding mechanism restricts the first locking member to the locked position when the first locking member is in the locked position, and restricts the first locking member to the unlocked position when the first locking member is in the unlocked position. A fixing device characterized in that, when the first locking member is in the locked position, the first locking member and the second locking member are locked together, thereby preventing the engagement mechanism from disengaging from the engagement seat, and when the first locking member is in the unlocked position, the first locking member and the second locking member are unlocked, thereby allowing the engagement mechanism to disengage from the engagement seat.

2. The fixing device according to claim 1, wherein the first locking member is provided with an extended portion that can extend to the outside of the engagement mechanism, and the first locking member can be moved between a locked position and an unlocked position by operating the first locking member with the extended portion.

3. The fixing device according to claim 1, wherein one end of the first locking member is provided with a locking projection, the locking projection can be locked into the locking hole of the engagement seat by extending to the outside of the engagement mechanism, or unlocked from the locking hole of the engagement seat by retracting into the inside of the engagement mechanism.

4. The fixing device according to claim 3, wherein a first pivot is provided in the middle portion of the first locking member, and the first pivot is rotatably provided in the rotation hole of the engagement mechanism, thereby allowing the first locking member to be rotated around the first pivot between a locked position and an unlocked position.

5. The other end of the first locking member is provided with a pressing portion that extends to the outside of the engagement mechanism, and when the pressing portion is pressed, the pressing portion moves, causing the first locking member to rotate around the first pivot from the locked position to the unlocked position, thereby causing the locking projection to move and be released from the locking hole of the engagement seat, thereby positioning the first locking member in the unlocked position, as described in claim 4.

6. The fixing device according to claim 1, wherein a return elastic member is connected to the first locking member, and the return elastic member acts to allow the first locking member to return from the unlocked position to the locked position.

7. The unlocking and holding mechanism includes a holding projection provided on the first locking member, and a locking and holding hole and an unlocking and holding hole provided on the engagement mechanism, wherein the locking and holding hole is provided at a corresponding position of the holding projection when the first locking member is in the locked position, and the unlocking and holding hole is provided at a corresponding position of the holding projection when the first locking member is in the unlocked position. The fixing device according to claims 1 to 6, wherein when the first locking member is in the locked position, the retaining projection is located in the locking retaining hole, thereby restricting the first locking member to the locked position, and when the first locking member is in the unlocked position, the retaining projection is located in the unlocking retaining hole, thereby restricting the first locking member to the unlocked position.

8. The fixing device according to claim 7, wherein, in order to make the first locking member movable between a locked position and an unlocked position, the locking holding hole and the unlocking holding hole are connected by a notch provided in the engagement mechanism, so that the holding projection can move from the locking holding hole through the notch to the unlocking holding hole.

9. The fixing device according to claim 8, wherein the width of the notch is smaller than the diameter of the lock-holding hole and the diameter of the unlock-holding hole, and is also smaller than the diameter of the holding projection.

10. The fastening device according to claim 8, wherein the portion of the engagement mechanism in which the notch is formed is elastic.

11. A carrier comprising a riding device, a load receiving device, and a securing device according to any one of claims 1 to 6, The carrier is characterized in that the fixing device is used to detachably fix the load receiving device to the passenger device.

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