stroller

Abstract

To provide a stroller capable of effectively preventing a handle or a canopy from unfolding when the stroller is folded and carried. [Solution] The stroller (1) has an unfolded state and a folded state, and includes a handle, front legs (12), and rear legs (13). The handle, front legs, and rear legs are rotatable relative to one another to the unfolded state or the folded state. The handle includes a handle upper joint (111) and a handle lower joint (112), and the handle upper joint and the handle lower joint are rotatable relative to one another to the unfolded state or the folded state. The stroller further includes a limiter, and in the folded state, the limiter prevents the handle upper joint from rotating to the unfolded state.

Description

[Technical Field]

[0001] The present disclosure relates to the technical field of strollers, and more particularly to strollers that can be securely folded. [Background technology]

[0002] Strollers are widely used as tool vehicles designed to provide convenience for children in outdoor activities. In order to make it more convenient to carry and store, strollers in the prior art are designed with a foldable structure, and when not in use, the stroller can be folded into a small size for easy carrying and storage.

[0003] Currently, strollers that are small after folding and can be carried on airplanes are popular. These strollers are convenient for users to carry because they are compact after folding. However, even though the frame and handle are folded, the handle or canopy may automatically open during use, which may affect the user's ability to board an airplane or carry the stroller when going out.

[0004] Therefore, there is a need for a stroller that can prevent the handle and / or canopy from opening automatically. Summary of the Invention

[0005] An object of the present disclosure is to provide a stroller in which the handle and / or canopy can be prevented from opening automatically.

[0006] In order to achieve the above object, the present disclosure provides a stroller. The stroller has an unfolded state and a folded state, and includes a handle, front legs, and rear legs. The handle, front legs, and rear legs are rotatable relative to one another to the unfolded state or the folded state. The handle includes a handle upper joint and a handle lower joint, and the handle upper joint and the handle lower joint are rotatable relative to one another to the unfolded state or the folded state. The stroller further includes a limiting portion, which, in the folded state, prevents the handle upper joint from rotating to the unfolded state.

[0007] In one embodiment, the stroller further includes a first canopy bracket, and the first canopy bracket and the handle upper joint rotate together along the same axis of rotation.

[0008] In one embodiment, the handle upper joint includes a first rotating portion, the handle lower joint includes a second rotating portion, and the limiting portion is provided on the first rotating portion, and the limiting portion obstructs an edge of the second rotating portion to prevent the first rotating portion from rotating toward the deployed state relative to the second rotating portion.

[0009] In one embodiment, the limiting portion is formed by an elastic finger, and when the second rotating portion applies a force to the elastic finger that is greater than or equal to a threshold value, the elastic finger is elastically deformed to allow the second rotating portion to rotate.

[0010] In one embodiment, the restriction portion is formed by a protrusion, and the second rotating portion has an unfolding groove, a folding groove, and a restriction hole, and in the unfolded state, the protrusion is located in the unfolding groove, and when rotating from the unfolded state to the folded state, the protrusion enters the restriction hole via the folding groove.

[0011] In one embodiment, the unfolding groove and the folding groove are formed on an edge of the second rotating part, and the protrusion is formed on an edge of the first rotating part.

[0012] In one embodiment, the handle upper joint includes a first rotating portion, the handle lower joint includes a second rotating portion, and a limiting portion is provided on the second rotating portion, and in the folded state, the limiting portion prevents the first rotating portion from rotating relative to the second rotating portion to the deployed state.

[0013] In one embodiment, the limiting portion is formed by an elastic finger, and when the first rotating portion applies a force to the elastic finger that is greater than or equal to a threshold value, the elastic finger is elastically deformed to allow the second rotating portion to rotate.

[0014] In one embodiment, the restriction portion is formed by a protrusion, and the first rotating portion has an unfolding groove, a folding groove, and a restriction hole, and in the unfolded state, the protrusion is located in the unfolding groove, and when rotating from the unfolded state to the folded state, the protrusion enters the restriction hole via the folding groove.

[0015] In one embodiment, the unfolding groove and the folding groove are formed on an edge of the first rotating part, and the protrusion is formed on an edge of the second rotating part.

[0016] In one embodiment, each of the first rotating part and the second rotating part has two plate parts, there is a gap between the two plate parts of each of the first rotating part and the second rotating part, and the two plate parts of the first rotating part and the two plate parts of the second rotating part intersect and at least partially overlap each other.

[0017] The stroller of the present disclosure can prevent the handle and / or canopy from opening automatically, and can effectively prevent the handle or canopy from opening when the stroller is folded and carried, thus affecting the user's use and at the same time not affecting the user's ability to unfold the handle and canopy. [Brief explanation of the drawings]

[0018] Various objects, features, and advantages of the present disclosure will become more apparent from the following detailed description of preferred embodiments thereof, taken in conjunction with the accompanying drawings, which are merely exemplary illustrations of the present disclosure and are not necessarily drawn to scale, in which like reference numerals refer to the same or similar parts.

[0019] [Figure 1] 1 is a side view of a stroller in a folded state according to an embodiment of the present disclosure. [Figure 2] 1 is a perspective view of a stroller in an unfolded state according to an embodiment of the present disclosure. [Figure 3] FIG. 3 is a partially enlarged view of a portion A in FIG. 2. [Figure 4] 3 is a partially enlarged view of part A of FIG. 2 from another angle. [Figure 5] FIG. 5 is an exploded perspective view of the components shown in FIG. 4. [Figure 6] 1 is a perspective view of a stroller in a folded state according to an embodiment of the present disclosure. [Figure 7] FIG. 7 is a partially enlarged view of a portion B in FIG. 6. [Figure 8] 1 is a perspective view of a stroller in a folded state according to an embodiment of the present disclosure. [Figure 9] FIG. 9 is a partially enlarged view of a portion C in FIG. 8. [Figure 10] FIG. 10 is a partial perspective exploded view of a stroller according to another embodiment of the present disclosure. [Figure 11] 1 is a perspective view of a stroller in an unfolded state according to another embodiment of the present disclosure. [Figure 12]FIG. 12 is a partially enlarged view of a portion D in FIG. [Figure 13] FIG. 10 is a perspective view of a stroller in a folded state according to another embodiment of the present disclosure. [Figure 14] FIG. 14 is a partially enlarged view of a portion E in FIG. [Figure 15] FIG. 10 is a perspective view of a handle upper joint in another embodiment of the present disclosure. [Figure 16] FIG. 10 is a perspective view of a handle lower joint in another embodiment of the present disclosure. [Figure 17] FIG. 10 is a schematic diagram of a handle lower joint according to another embodiment of the present disclosure, showing the internal structure of the handle lower joint. [Figure 18] 10 is a partial schematic view of a stroller in an unfolded state according to another embodiment of the present disclosure. [Figure 19] 10 is a partial schematic view of a stroller in a folded state according to another embodiment of the present disclosure. [Explanation of symbols]

[0020] Stroller 1 Handle 11 Handle upper joint 111 First rotating part 1131 First plate part 11311 Second plate part 11312 Edge 11313 Handle lower joint 112 Second rotating part 1132 Third plate part 11321 Fourth plate part 11322 Edge 11323 Restricted section 114 Development groove 115 Folding groove 116 Restriction hole 117 front legs 12 Hind legs 13 Wheels 14 Canopy bracket 15 First canopy bracket 151 Second Canopy Bracket 152 Sheet 16 DETAILED DESCRIPTION OF THE INVENTION

[0021] To more clearly explain the overall concepts of the present disclosure, the following detailed description is made by way of example with reference to the accompanying drawings herein.

[0022] It should be noted that in the following description, many specific details are set forth in order to fully understand the present disclosure. However, the present disclosure can be implemented in other ways different from those described herein. Therefore, the scope of protection of the present disclosure is not limited to the specific embodiments disclosed below.

[0023] Furthermore, in describing the present disclosure, terms such as "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used for the convenience of describing the present disclosure and to simplify the description. These terms indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for the convenience of describing and simplifying the description of the present disclosure. They do not indicate or imply that the devices or components shown must have a particular orientation or be configured or operate in a particular orientation, and therefore should not be construed as limiting the present disclosure.

[0024] In this disclosure, unless otherwise specified or limited, the terms "installed," "connected," "coupled," and "fixed" should be understood broadly, and may refer to, for example, fixed, detached, or integrated, directly connected or indirectly connected via an intermediate medium, or internal communication between two components or interaction between two components. However, a direct connection means that the two connected objects do not establish a connection relationship through an additional structure, but merely form an integrated part through a connecting structure. Those skilled in the art can understand the specific meanings of the above terms in this disclosure depending on the specific situation.

[0025] In the present disclosure, unless otherwise specified and limited, a first feature "above" or "below" a second feature may be in direct contact between the first and second features, or indirect contact between the first and second features via an intermediate medium. In the description herein, references to the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" mean that the particular feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of the present disclosure. In the present specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0026] FIG. 1 is a side view of a stroller in an embodiment of the present disclosure, the stroller in a folded state, and FIG. 2 is a perspective view of a stroller in an embodiment of the present disclosure, the stroller in an unfolded state.

[0027] The stroller 1 of the present disclosure has an unfolded state (the state shown in FIG. 2) and a folded state (the state shown in FIG. 1). The stroller 1 includes a handle 11, front legs 12, rear legs 13, and wheels 14. The wheels 14 may be provided at the ends of the front legs 12 and the rear legs 13, respectively, so that the stroller 1 can be pushed. The handle 11, the front legs 12, and the rear legs 13 are rotatable relative to each other between the unfolded state and the folded state. In this embodiment, the stroller 1 has four wheels 14, but the present disclosure is not limited thereto. Alternatively, the stroller 1 may have three wheels, or four or more wheels. The stroller 1 may also include a seat 16 for a baby to sit on, and may include other components for configuring different parts of the stroller.

[0028] The handle 11 includes an upper handle joint 111 and a lower handle joint 112. The upper handle joint 111 and the lower handle joint 112 are rotatable relative to each other between an unfolded state and a folded state. As shown in FIG. 1 , in the folded state, the upper handle joint 111 is in a substantially vertical position. An elastic element (e.g., a torsion spring) may be provided in the handle 11, and the elastic element may apply a force to the upper handle joint 111 to move it toward the folded state.

[0029] The stroller also includes a limiting structure (described in detail below), such as an elastic blocking member or a structure in which a protrusion engages with a limiting hole. In the folded state, the limiting structure can prevent the handle upper joint 111 from rotating toward the unfolded state. The term "block" in this disclosure may include partial blocking, i.e., when the force applied to the limiting structure exceeds a threshold, the limiting structure may no longer have a blocking effect. The threshold may be, for example, within the range of force that the user's arms can provide.

[0030] 3 is a partially enlarged view of portion A in FIG. 2, and FIG. 4 is a partially enlarged view of portion A in FIG. 2 viewed from a different angle.

[0031] 1 to 4, the stroller 1 further includes a canopy bracket 15. The canopy bracket 15 may include a first canopy bracket 151 and a second canopy bracket 152. The first canopy bracket 151 can rotate together with the handle upper joint 111 along the same rotation axis. The canopy bracket 15 may be used as a frame for a canopy (not shown). For example, the canopy may be made of fabric and can be unfolded or folded to achieve a light-blocking function as needed.

[0032] Figure 5 is an exploded perspective view of the parts shown in Figure 4, Figure 6 is a perspective view of a stroller according to an embodiment of the present disclosure, with the stroller in a folded state, Figure 7 is a partial enlarged view of part B in Figure 6, Figure 8 is a perspective view of a stroller according to an embodiment of the present disclosure, with the stroller in a folded state, Figure 7 is a partial enlarged view of part B in Figure 6, Figure 8 is a perspective view of a stroller according to an embodiment of the present disclosure, with the stroller in a folded state, and Figure 9 is a partial enlarged view of part C in Figure 8.

[0033] 5, the handle upper joint 111 includes a first rotating portion 1131. The handle lower joint 112 includes a second rotating portion 1132. The first rotating portion 1131 includes a limiting portion 114. In the folded state, the limiting portion 114 can obstruct an edge 11323 of the second rotating portion 1132 to prevent the first rotating portion 1131 from rotating relative to the second rotating portion 1132 toward the unfolded state.

[0034] The limiting portion 114 may be formed as an elastic finger. As shown in FIG. 5, the limiting portion 114 may be elastically deformed in a direction perpendicular to the surface of the first rotating portion 1131 (as indicated by the arrow in FIG. 5), and the end of the limiting portion 114 may form a protrusion that protrudes from the surface of the first rotating portion 1131. When the second rotating portion 1132 applies a force equal to or greater than a threshold to the elastic finger, the elastic finger elastically deforms so as not to prevent the rotation of the second rotating portion 1132. The angle at which the protrusion faces the second rotating portion 1132 can be designed according to the threshold requirement. Note that the steeper the angle, the larger the threshold, and the gentler the angle, the smaller the threshold.

[0035] Referring to FIG. 5 , the first pivoting portion 1131 has a first plate portion 11311 and a second plate portion 11312. The second pivoting portion 1132 has a third plate portion 11321 and a fourth plate portion 11322. There is a gap between the first plate portion 11311 and the second plate portion 11312, and there is a gap between the third plate portion 11321 and the fourth plate portion 11322. The gap between the first plate portion 11311 and the second plate portion 11312 is suitable for accommodating one of the third plate portion 11321 and the fourth plate portion 11322. The gap between the third plate portion 11321 and the fourth plate portion 11322 is suitable for accommodating one of the first plate portion 11311 and the second plate portion 11312. The first plate portion 11311 and the second plate portion 11312 of the first rotating portion 1131 and the third plate portion 11321 and the fourth plate portion 11322 of the second rotating portion 1132 intersect with each other, and the first rotating portion 1131 and the second rotating portion 1132 at least partially overlap.

[0036] 7, when the stroller frame is in the folded state, the first rotating portion 1131 partially overlaps the second rotating portion 1132, and the limiting portion 114 contacts the edge 11323 of the second rotating portion 1132 to prevent the first rotating portion 1131 from rotating toward the unfolded state. Therefore, when the stroller frame is in the folded state, the handle upper joint 111 and / or the first canopy bracket 151 and / or the second canopy bracket 152 that moves with the handle upper joint 111 can be maintained in a fully folded state without being partially unfolded due to gravity or shaking. When the stroller 1 needs to be unfolded, the handle upper joint 111 is rotated by applying a force exceeding a threshold value, and the second rotating part 1132 forces the limiting part 114 to elastically deform so that it no longer protrudes obviously from the surface of the first rotating part 1131, and the first rotating part 1131 is no longer hindered from rotating outward, thereby allowing the stroller 1 to be unfolded smoothly.

[0037] 7, the limiting portion 114 is disposed at a plurality of positions on the first rotating portion 1131, provided that the limiting portion 114 is in contact with the edge 11323 of the second rotating portion 1132 and is lower than the common rotation axis R of the first rotating portion 1131 and the second rotating portion 1132 in the folded state. The position of the limiting portion 114 can be appropriately adjusted taking into consideration other components of the stroller 1 (for example, the seat fabric).

[0038] In this embodiment, the limiting portion 114 is provided on the first rotating portion 1131, but in other embodiments, the limiting portion 114 may be provided on the second rotating portion 113. In this way, in the folded state, the limiting portion 114 obstructs the edge 11313 of the first rotating portion 1131, preventing the first rotating portion 1131 from rotating to the unfolded state relative to the second rotating portion 113. When the first rotating portion 1131 applies a force exceeding a threshold value to the limiting portion, the limiting portion elastically deforms and does not prevent the second rotating portion 113 from rotating.

[0039] FIG. 11 is a perspective view of a stroller according to another embodiment of the present disclosure, the stroller in an unfolded state. FIG. 12 is a partial enlarged view of portion D in FIG. 11. FIG. 13 is a perspective view of a stroller according to another embodiment of the present disclosure, the stroller in a folded state. FIG. 14 is a partial enlarged view of portion E in FIG. 13. FIG. 15 is a perspective view of a handle upper joint according to another embodiment of the present disclosure. FIG. 16 is a perspective view of a handle lower joint according to another embodiment of the present disclosure. FIG. 17 is a schematic view of a handle lower joint according to another embodiment of the present disclosure, showing the internal structure of the handle lower joint. FIG. 18 is a partial schematic perspective view of a stroller according to another embodiment of the present disclosure, the stroller in an unfolded state. FIG. 19 is a partial schematic perspective view of a stroller according to another embodiment of the present disclosure, the stroller in a folded state.

[0040] Below, only the differences between this embodiment and the previously described embodiment will be described, and the same parts will be omitted to avoid duplication.

[0041] In another embodiment, as shown in FIG. 15 , the limiting portion 114 is formed by a protrusion and is provided on the first rotating portion 1131. As shown in FIGS. 12 and 14 , the second rotating portion 1132 has an unfolding groove 115, a folding groove 116, and a limiting hole 117. In the unfolded state, the limiting portion 114 is located in the unfolding groove 115 (as shown in FIG. 12 ). In the process from the unfolded state to the folded state, for example, by rotation, the limiting portion 114 moves away from the unfolding groove 115 and moves away from the second rotating portion 1132, then enters the folding groove 116, and finally leaves the folding groove 116 and enters the limiting hole 117 (as shown in FIG. 14 ), and the protrusion is held in the limiting hole 117. The limiting hole 117 may have a certain length so that the handle upper joint 111 can rotate within a certain range.

[0042] During rotation from the folded state to the unfolded state, a force exceeding a threshold is applied to the handle upper joint 111, causing the limiting portion 114 to overcome the obstruction of the edge of the limiting hole 117 and move away from the limiting hole 117. When the limiting portion 114 is positioned between the limiting hole 117 and the folding groove 116, the limiting portion 114 may come into contact with the second rotating portion 1132 and generate friction. As the handle upper joint 111 continues to unfold, the limiting portion 114 eventually returns to the unfolding groove 115 (as shown in FIG. 18 ).

[0043] As shown in FIG. 17, an unfolding groove 115 and a folding groove 116 are formed on an edge 11323 of the second rotating part 1132. Also, as shown in FIG. 15, a limiting part 114 (protrusion) may be formed on an edge 11313 of the first rotating part 1131. The unfolding groove 115 and the folding groove 116 can prevent unnecessary wear of the limiting part 114. The folding groove 116 has a guide function and can guide the limiting part 114 from the unfolded state to the folded state during rotation, and the limiting part 114 can move into the limiting hole 117 along the folding groove 116.

[0044] Referring to Figures 18 and 19, the unfolding groove 115, the folding groove 116, and the restriction hole 117 may generally be formed around the circumference of a circle centered on the rotation axis of the first rotating part 1131 and the second rotating part 1132.

[0045] The diameter range of the restriction portion 114 (bump) may be 2 mm to 5 mm, and the height range of the restriction portion 114 may be 1 mm to 3 mm, but the present disclosure is not limited thereto.

[0046] In this embodiment, the limiting portion 114 is disposed on the first rotating portion 1131. In other embodiments, the limiting portion 114 may also be disposed on the second rotating portion 1132, and the unfolding groove 115, the folding groove 116, and the limiting hole 117 are correspondingly disposed on the first rotating portion 1131. In this way, in the folded state, the limiting portion 114 (bump) is constrained by the limiting hole 117 on the first rotating portion 1131, preventing the first rotating portion 1131 from rotating toward the unfolded state relative to the second rotating portion 1132. When a force exceeding a threshold is applied to the handle upper joint 111, the limiting portion 114 moves away from the limiting hole 117, and the first rotating portion 1131 rotates relative to the second rotating portion 1132 and unfolds.

[0047] In other embodiments, the restricting portions 114 formed as elastic fingers and the restricting portions 114 formed by protrusions may be used simultaneously, and both may be provided simultaneously on the first rotating portion 1131 or the second rotating portion 1132, or may be provided separately on the first rotating portion 1131 and the second rotating portion 1132. Furthermore, the number of elastic fingers and protrusions may also differ.

[0048] Those skilled in the art will easily conceive other embodiments of the present disclosure after studying this specification and practicing the present disclosure as described above. This disclosure is intended to cover any modifications, uses, or adaptations of the present disclosure in accordance with the general principles of the present disclosure, including common knowledge or common technical means in the technical field not disclosed in the present disclosure. Furthermore, the present specification and its embodiments are considered to be exemplary only, with the scope and spirit of the present disclosure being indicated by the claims of the present disclosure.

[0049] Although the present disclosure has been described with reference to examples of typical embodiments, the terms used are illustrative and exemplary, rather than limiting. Since the present disclosure can be embodied in various forms without departing from the spirit and essence of the present disclosure, the above-described embodiments should not be limited to the details set forth above, but should be interpreted in the broadest sense within the scope defined by the claims, and therefore, it should be understood that all modifications that come within the scope of the claims or their equivalents should be covered by the claims.

Claims

1. A stroller having an unfolded state and a folded state, The stroller includes a handle, front legs, and rear legs; the handle, the front legs, and the rear legs are rotatable relative to one another to the unfolded state or the folded state; the handle includes a handle upper joint and a handle lower joint, the handle upper joint and the handle lower joint being rotatable relative to each other to the unfolded state or the folded state; The stroller further includes a limiting portion, and in the folded state, the limiting portion prevents the handle upper joint from rotating to the unfolded state. A stroller characterized by:

2. The stroller further includes a first canopy bracket, and the first canopy bracket and the handle upper joint rotate together along the same rotation axis.

2. The stroller according to claim 1 .

3. The handle upper joint includes a first rotating portion, the handle lower joint includes a second rotating portion, and the limiting portion is provided on the first rotating portion, and in the folded state, the limiting portion obstructs an edge of the second rotating portion to prevent the first rotating portion from rotating relative to the second rotating portion to the unfolded state.

3. The stroller according to claim 1 or 2.

4. The limiting portion is formed by an elastic finger, and when the second rotating portion applies a force equal to or greater than a threshold value to the elastic finger, the elastic finger is elastically deformed to allow the second rotating portion to rotate.

4. The stroller according to claim 3.

5. The limiting portion is formed by a protrusion, and the second rotating portion has an unfolding groove, a folding groove, and a limiting hole, and in the unfolded state, the protrusion is located in the unfolding groove, and when rotating from the unfolded state to the folded state, the protrusion enters the limiting hole via the folding groove.

4. The stroller according to claim 3.

6. The unfolding groove and the folding groove are formed on an edge of the second rotating part, and the protrusion is formed on an edge of the first rotating part.

6. The stroller according to claim 5.

7. The handle upper joint includes a first rotating portion, the handle lower joint includes a second rotating portion, and a limiting portion is provided on the second rotating portion, and in the folded state, the limiting portion prevents the first rotating portion from rotating relative to the second rotating portion to the unfolded state.

3. The stroller according to claim 1 or 2.

8. The restricting portion is formed by an elastic finger, and when the first rotating portion applies a force equal to or greater than a threshold value to the elastic finger, the elastic finger is elastically deformed to allow the second rotating portion to rotate.

8. The stroller according to claim 7.

9. The limiting portion is formed by a protrusion, and the first rotating portion has an unfolding groove, a folding groove, and a limiting hole, and in the unfolded state, the protrusion is located in the unfolding groove, and when rotating from the unfolded state to the folded state, the protrusion enters the limiting hole via the folding groove.

8. The stroller according to claim 7.

10. The unfolding groove and the folding groove are formed on an edge of the first rotating part, and the protrusion is formed on an edge of the second rotating part.

10. The stroller according to claim 9.

11. Each of the first rotating part and the second rotating part has two plate parts, and there is a gap between the two plate parts of each of the first rotating part and the second rotating part, and the two plate parts of the first rotating part and the two plate parts of the second rotating part intersect and at least partially overlap each other. The stroller according to any one of claims 3 to 10.

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