Patent Application
20240067249
The present disclosure relates to a wheel orientation structure, in particular, to a one-hand operated wheel orientation structure. More specifically, the present disclosure relates to a one-hand operated wheel orientation structure and a child carrier including the same.
In order to facilitate forward or backward movement, universal wheel structures are generally used for child carriers such as strollers, wheeled cribs, etc. in the market. However, when the wheels of the child carrier may be movable in an arbitrary direction, it is difficult to manipulate the movement of the child carrier or control the steering of the child carrier. Therefore, it is necessary to provide a wheel orientation device on the front wheel or the rear wheel.
The orientation device of the existing child carrier usually has a complicated structure. Moreover, a user needs to stop the child carrier first, and directionally lock each of the wheels respectively, and then stop and unlock the wheels after steering the child carrier. That is to say, such orientation device is not only cumbersome and time-consuming to operate, but also requires to be operated by both hands of the user. Thus, this kind of child carrier is extremely difficult to operate for the user who may push the carrier by one hand, and a heavy object is carried by the other hand, for example.
Therefore, in one or more embodiments it is useful to provide a wheel orientation structure having a simple structure, convenient to operate, and capable of one-hand operation.
An objective of an embodiment of the present disclosure is to provide a wheel orientation structure with simple structure, convenient operation, and easy disassembling and maintenance.
Another objective of an embodiment of the present disclosure is to provide a wheel orientation structure capable of realizing one-hand operation.
Another objective of an embodiment of the present disclosure is to provide a wheel orientation structure that simultaneously realizes the oriented unlocking and oriented locking of wheels or wheel sets in a one-hand operated manner.
Another objective of an embodiment of the present disclosure is to provide a child carrier having the wheel orientation structure as mentioned above.
In order to achieve at least one of the above objectives, one or more embodiments of the present disclosure provide a one-hand operated wheel orientation structure. The one-hand operated wheel orientation structure includes an orientation operating portion arranged on a frame; a plurality of wheel orientation assemblies locking or unlocking the orientation of a corresponding one of wheel sets; a plurality of traction devices arranged corresponding to the plurality of wheel orientation assemblies one by one, one end of each of the plurality of traction devices being connected to the orientation operating portion, and the other end of each of the plurality of traction devices being connected to each of the plurality of wheel orientation assemblies, respectively. An actuation action or a release action of the orientation operating portion is transferred to the wheel orientation assemblies through the traction devices, so as to unlock or lock the corresponding one of wheel sets.
In at least one embodiment, the orientation operating portion includes a turntable rotatably mounted on the frame, wherein the plurality of traction devices are respectively connected with the turntable by being evenly distributed along a circumference of the turntable, and the actuation action of the orientation operating portion is a rotation action of the turntable in one direction to unlock the corresponding one of wheel sets.
In at least one embodiment, the orientation operating portion further includes a handle fixedly connected to the turntable and capable of being switched between a locked position and an unlocked position to rotate together with the turntable about the same center.
In at least one embodiment, the orientation operating portion further includes a button inserted on the frame and movably connected to the turntable, and capable of being switched from a locked position to an unlocked position by means of pressing, thereby rotating the turntable.
In at least one embodiment, the turntable has a turntable engaging portion, and the button has a button operating portion that accepts a pressing operation and a button engaging portion connected to the turntable engaging portion, engagement of the button engaging portion and the turntable engaging portion enables a linear movement of the button to be converted into a rotary movement of the turntable.
In at least one embodiment, the turntable engaging portion is a cylindrical convex portion, the button engaging portion is an elongated slot hole, and the convex portion is inserted into the elongated slot hole and movable in the elongated slot hole.
In at least one embodiment, the plurality of wheel orientation assemblies are two wheel orientation assemblies, and the plurality of traction devices are two traction devices.
In at least one embodiment, the wheel orientation assembly includes: a fixing seat arranged on the frame; a rotation seat arranged on a wheel frame of the wheel set, connected to the fixing seat, and capable of rotating about an axis perpendicular to the ground relative to the fixing seat; an orientation member connected to one of the plurality of traction devices, and movably arranged in an orientation member holding hole of the fixing seat, wherein the orientation member has an extended position and a retracted position, in the retracted position, the orientation member is only accommodated in the orientation member holding hole of the fixing seat, so that the rotation seat is capable of rotating relative to the fixing seat, thereby unlocking an orientation of the corresponding one of wheel sets; and in the extended position, the orientation member is accommodated in the orientation member holding hole of the fixing seat and accommodated in an orientation member receiving hole of the rotation seat to prevent the rotation seat from rotating relative to the fixing seat, thereby locking the orientation of the corresponding one of wheel sets; and an elastic member seated in the fixing seat, the elastic member having one end abutting against the fixing seat, and the other end abutting against the orientation member to apply a force to the orientation member to move towards the orientation member receiving hole.
In at least one embodiment, the traction device is connected to one end of the orientation member inserted into the orientation member holding hole, wherein the actuation action of the orientation operating portion enables the plurality of traction devices to simultaneously pull the corresponding orientation member so that the corresponding orientation member is disengaged from the corresponding orientation member receiving hole, thereby unlocking the orientation of the wheel set.
In at least one embodiment, the release action of the orientation operating portion enables the traction devices to simultaneously release the plurality of traction to the corresponding orientation member so that the corresponding orientation member is inserted into the corresponding orientation member holding hole under the action of the elastic member, thereby locking the orientation of the wheel set.
One or more embodiments of the present disclosure also provide a child carrier including a frame; a wheel set arranged on the frame; and the one-hand operated wheel orientation structure as described above, wherein the orientation operating portion of the wheel orientation structure is arranged on the frame grip portion of the child carrier.
The one-hand operated wheel orientation structure of one or more embodiments of the present disclosure has the beneficial technical effects of simple structure, convenient operation, and easy disassembling and assembling, thereby facilitating the convenience of regular maintenance. One or more embodiments of the present disclosure can simultaneously realize the oriented unlocking and oriented locking of the wheels or wheel sets by one hand operation, greatly increasing the convenience and experience of the user. Also, one or more embodiments of the present disclosure can improve production efficiency and save production costs.
The accompanying drawings are included herein to provide a further understanding of the present disclosure, and are incorporated into this specification to constitute a part of the specification of the present application. The accompanying drawings illustrate embodiments of the present disclosure and are used together with the following description to illustrate the concept of the present disclosure.
Reference numbers are as follows:
Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Although various modifications and alternative forms may be made to the present disclosure, specific embodiments are shown in the accompanying drawings as examples. However, the present disclosure should not be construed as limiting the embodiments set forth herein; on the contrary, the present disclosure would cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure.
In the following, the present disclosure will be described in detail with reference to the accompanying drawings.
The present disclosure is applicable to the field of a child carrier, such as a stroller, a baby carriage, and a wheeled crib. For the convenience of description, the child carrier 1 may be a baby carriage in one embodiment of the present disclosure.
As shown in
With reference to
In particular, the orientation operating portion 310 is arranged on the frame 10, for example, at a frame grip portion 11 on the upper portion of the frame 10, and can be actuated or released by the user with one hand. The wheel orientation assemblies 320 and 330 are used to lock or unlock the orientation of the corresponding wheel set 20, respectively. For example, the first wheel orientation assembly 320 is suitable for the first wheel 21 of the wheel set 20, and the second wheel orientation assembly 330 is suitable for the second wheel 22 of the wheel set 20. The traction devices 340 and 350 may extend in an interior space of the frame 10. Each of the traction devices 340, 350 has one end connected to the orientation operating portion 310, and the other end connected to the corresponding one of the wheel orientation assemblies 320 and 330, respectively. With the above-mentioned connection relationship, the actuation or release action of the orientation operating portion 310 is transferred to the wheel orientation assemblies 320 and 330 through the traction devices 340 and 350 respectively, so as to unlock or lock the orientation of the corresponding wheel set 20.
In one embodiment of the present disclosure, as shown in
In one embodiment, the actuation action of the orientation operating portion 310 is a rotation action of the turntable 311 in one direction. For example, the user can pull the handle 312 from the locked position (shown in
The first traction device 340 and the second traction device 350 are respectively connected to the turntable 311 in a manner of being evenly distributed along the circumference of the turntable 311. In one embodiment, as shown in
A plurality of wheel orientation assemblies in one embodiment of the present disclosure may have the same structure, and respectively include a fixing seat, a rotation seat, an orientation member, and an elastic member. For ease of understanding, the connection relationship and operation mode between the orientation operating portion of the wheel orientation structure 30 and the wheel orientation assemblies and the traction devices according to the present disclosure will be described below by taking the first wheel orientation assembly 320 as an example.
In one embodiment, as shown in
The fixing seat 321 is arranged on the frame 10 close to the first wheel 21, and has an orientation member holding hole 3211 for accommodating the orientation member 323.
The rotation seat 322 is arranged on the wheel frame of the first wheel 21 of the wheel set 20, and has an orientation member receiving hole 3221 for receiving the orientation member 323 when the orientation member 323 is selectively engaged with the rotation seat 322. The rotation seat 322 is connected to the fixing seat 321, for example in a pivotable manner, and may rotate relative to the fixing seat 321 about an axis X perpendicular to the ground.
The orientation member 323 is connected to the first traction device 340 and is movably arranged in the orientation member holding hole 3211 of the fixing seat 321. In particular, the first traction device 340 is connected to one end of the orientation member 323 inserted into the orientation member holding hole 3211. Corresponding to the oriented locking state and the oriented unlocking state of the wheel orientation structure 30 of the present disclosure, the orientation member 323 respectively has an extended position (as shown in
The elastic member 324 is seated in the fixing seat 321, one end of the elastic member abuts against the fixing seat 321, and the other end abuts against the orientation member 323, so as to apply a force to the orientation member 323 to move towards the orientation member receiving hole 3221 of the rotation seat 322.
With the wheel orientation structure 30 provided by the present disclosure, the user may complete the oriented locking and oriented unlocking of the wheel set by one-hand operation. Hereinafter, the oriented locking state and the oriented unlocking state of the wheel orientation assembly according to an embodiment of the present disclosure will be described with reference to
As shown in
When the orientation of the wheel set 20 needs to be unlocked, that is, the wheel orientation structure 30 is switched from the oriented locking state to the oriented unlocking state, the actuation action of the orientation operating portion 310 enables the first traction device 340 and the second traction device 350 to simultaneously pull the corresponding orientation member, so that the corresponding orientation member is disengaged from the corresponding orientation member receiving hole, thereby realizing the oriented unlocking of the wheel set 20.
For example, the user may pull the handle 312 of the orientation operating portion 310 by one hand, and the handle 312 rotates the turntable 311 in the clockwise direction C, so that the first traction device 340 and the second traction device 350 are simultaneously wound around the turntable 311 in the clockwise direction, thereby pulling the corresponding orientation member.
At this time, in conjunction with
When it is required to re-lock the orientation of the wheel set 20, that is, the wheel orientation structure 30 is restored from the oriented unlocking state to the oriented locking state, the release action of the orientation operating portion 310 allows the first traction device 340 and the second traction device 350 to simultaneously release the traction force acting on the corresponding orientation member, and the orientation member is inserted into the orientation member holding hole of the corresponding fixing seat under the action of the corresponding elastic member, thereby re-locking the orientation of the wheel set 20.
With reference to
For example, as shown in
In other embodiments of the present disclosure, the orientation operating portion 310 may also include other structures and shapes that can achieve the oriented unlocking or oriented locking of the corresponding wheel set 20 through the traction devices 340 and 350.
As shown in
In one embodiment, the turntable 411 has a turntable engaging portion 4111, and the button 413 has a button operating portion 4131 that accepts a pressing operation and a button engaging portion 4132 connected to the turntable engaging portion 4111. The button engaging portion 4132 is engaged with the turntable engaging portion 4111 to movably connect the button 413 to the turntable 311 and convert a linear movement of the button 413 into a rotary movement of the turntable 411.
For example, the turntable engaging portion 4111 is a cylindrical convex portion, and the button engaging portion 4132 is an elongated slot hole. The convex portion is inserted into the elongated slot hole and movable in the elongated slot hole.
In this embodiment, when the orientation of the wheel set 20 needs to be unlocked, the user may press the button operating portion 4131 of the button 413 by one hand to make the button engaging portion 4132 move upwards, for example, towards the frame connected to the turntable 411, so that the engagement between the button engaging portion 4132 and the turntable engaging portion 4111 brings the turntable 411 to rotate in the clockwise direction C. As the turntable 411 rotates, the first traction device 340 and the second traction device 350 are wound on the turntable 311 in the clockwise direction to simultaneously pull the corresponding orientation members out of the orientation member receiving holes of the corresponding rotation seats, thereby releasing the orientation of the wheel set 20.
On the contrary, when the orientation of the wheel set 20 needs to be re-locked, the user may release the pressing action on the button operating portion 4131, and the turntable 411 rotates in the counterclockwise direction D back to the initial position. The first traction device 340 and the second traction device 350 release the traction action on their corresponding orientation members, so that the corresponding orientation member is inserted into the orientation member holding hole of the corresponding rotation seat under the action of the corresponding elastic member, thereby locking the orientation of the wheel set 20.
One or more embodiments of the present disclosure provide a wheel orientation assembly with simple structure, convenient operation, easy disassembling and assembling, and convenient maintenance. The wheel orientation assembly can also satisfy the user with the one-hand operation. Moreover, the wheel orientation assembly provided by one or more embodiments of the present disclosure can simultaneously realize the oriented unlocking and the oriented locking of the wheels or wheel sets by one hand, thereby greatly increasing the convenience and experience of the user.
Although relative terms such as “above” and “under” are used herein to describe the relationship of one component relative to another component, such terms are used herein only for the sake of convenience, for example, in the direction shown in the figure. It should be understood that if the referenced device is inversed upside down, a component described as “above” will become a component described as “under”. Other relative terms, such as “top”, “bottom”, “left”, “right”, etc. have similar meanings. When a structure is described as “above” another structure, it probably means that the structure is integrally formed on another structure, or the structure is “directly” disposed on another structure, or the structure is “indirectly” disposed on another structure through an additional structure.
Words such as “one”, “an/a”, “the” and “said” are used in the specification to indicate the presence of one or more elements/component parts/and others. Terms “including”, “comprising” and “having” have an inclusive meaning which means that there may be additional elements/component parts/and others in addition to the listed elements/component parts/and others. Terms “first”, “second” and “third” are used herein only as markers, and they do not limit the number of objects modified after them.
Unless otherwise defined, all terms including technical and scientific terms used herein have the same meanings as commonly understood by those of ordinary skill in the art. It should also be understood that terms should be interpreted as having meanings consistent with their meanings in the related field, and unless clearly defined herein, they will not be interpreted as idealized or overly formal meanings.
It should be understood that although the preferred embodiments are shown and described above, the present disclosure is not limited to the above specific embodiments. Without departing from the spirit and scope of the appended claims, those skilled in the art can make various modifications and variations. Therefore, it should be noted that various modifications and variations cannot be considered as going beyond the technical spirit and scope of the present disclosure.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202023250598.X | Dec 2020 | CN | national |
The present application is a national phase application under 35 U.S.C. 371 of International Application No. PCT/EP2021/087793 filed on Dec. 29, 2021, which claims priority to Chinese Application No. 202023250598.X filed on Dec. 29, 2020, the entire contents of which are incorporated herein by reference.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/EP2021/087793 | 12/29/2021 | WO |
