Stroller

Abstract

The present application discloses a baby carriage. The baby carriage has an unfolded state and a folded state, and comprises a handle, a front wheel, a rear wheel and a wheel, the wheel is arranged at one end of the front wheel and the rear wheel respectively, the handle, the front wheel and the rear wheel can be pivoted relative to each other to the unfolded state or the folded state, the handle comprises an upper handle joint and a lower handle joint, the upper handle joint and the lower handle joint can be pivoted relative to each other to the unfolded state or the folded state, and the baby carriage further comprises a limiting structure, in the folded state, the limiting structure prevents the upper handle joint from being pivoted towards the unfolded state. The baby carriage provided by the present application can effectively prevent the handle or the canopy from being opened during the folding and carrying of the baby carriage.

Description

Technical Field

[0001] This application relates to the technical field of strollers, and more particularly to a stroller that can be reliably folded. Background Technology

[0002] A stroller is a tool vehicle designed to facilitate outdoor activities for infants and toddlers. It has long been widely used. To make strollers easier to carry and store, they are now designed with a foldable structure. This way, when not in use, the stroller can be folded into a smaller size for easy carrying and storage.

[0003] Currently, strollers that are small when folded and can be taken on airplanes are more popular. These strollers are compact when folded, making them convenient for users to carry. However, there may be a problem during use: although the frame and handlebars are folded, the handlebars or canopy may automatically open during transport, affecting the user's ability to board a plane or take it with them when traveling.

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

[0005] The purpose of this application is to provide a stroller that prevents the rider and / or the canopy from opening automatically.

[0006] To achieve the above objectives, this application provides a stroller having an unfolded state and a folded state, and including a handle, a front foot, a rear foot, and wheels. The wheels are respectively disposed at one end of the front foot and the rear foot. The handle, the front foot, and the rear foot are pivotable relative to each other to the unfolded state or the folded state. The handle includes an upper joint and a lower joint, which are pivotable relative to each other to the unfolded state or the folded state. The stroller also includes a limiting structure that prevents the upper joint from pivoting toward the unfolded state in the folded state.

[0007] In one embodiment, the stroller further includes a first canopy support that pivots together with the hand joint of the stroller along the same pivot axis.

[0008] In one embodiment, the upper joint of the rider includes a first pivot portion, and the lower joint of the rider includes a second pivot portion. The first pivot portion is provided with a limiting portion. In the retracted state, the limiting portion blocks the edge of the second pivot portion to prevent the first pivot portion from pivoting relative to the second pivot portion toward the extended state.

[0009] In one embodiment, the limiting portion is formed as an elastic finger, and when the second pivot portion applies a force to the elastic finger exceeding a threshold, the elastic finger undergoes elastic deformation, thereby allowing the second pivot portion to pivot.

[0010] In one embodiment, the limiting portion is formed as a protrusion, and the second pivot portion has an unfolding groove, a retracting groove, and a limiting hole. In the unfolded state, the protrusion is located in the unfolding groove, and during the pivoting process from the unfolded state to the retracted state, the protrusion passes through the retracting groove and enters the limiting hole.

[0011] In one embodiment, the unfolding groove and the retracting groove are formed on the edge of the second pivot portion, and the protrusion is formed on the edge of the first pivot portion.

[0012] In one embodiment, the upper joint of the rider includes a first pivot portion, and the lower joint of the rider includes a second pivot portion. The second pivot portion is provided with a limiting portion. In the retracted state, the limiting portion blocks the first pivot portion to prevent the first pivot portion from pivoting relative to the second pivot portion toward the extended state.

[0013] In one embodiment, the limiting portion is formed as an elastic finger, and when the first pivot portion applies a force to the elastic finger exceeding a threshold, the elastic finger undergoes elastic deformation, thereby allowing the second pivot portion to pivot.

[0014] In one embodiment, the limiting portion is formed as a protrusion, and the first pivot portion has an unfolding groove, a retracting groove, and a limiting hole. In the unfolded state, the protrusion is located in the unfolding groove, and in the process from the unfolded state to the retracted state, the protrusion passes through the retracting groove and enters the limiting hole.

[0015] In one embodiment, the unfolding groove and the retracting groove are formed on the edge of the first pivot portion, and the protrusion is formed on the edge of the second pivot portion.

[0016] In one embodiment, the first pivot portion and the second pivot portion each have two plate-shaped portions, and there is a gap between the two plate-shaped portions of the first pivot portion and the two plate-shaped portions of the second pivot portion. The two plate-shaped portions of the first pivot portion and the two plate-shaped portions of the second pivot portion are interleaved and at least partially overlap each other.

[0017] The stroller of this application can prevent the rider and / or canopy from opening automatically, effectively preventing the rider or canopy from opening during the process of carrying the stroller after it is folded up, thus affecting the user's use, while not affecting the user's ability to unfold the rider and canopy. Attached Figure Description

[0018] Various objects, features, and advantages of the invention will become more apparent from the following detailed description of preferred embodiments of the invention, taken in conjunction with the accompanying drawings. The drawings are merely illustrative of the invention and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar parts. Wherein:

[0019] Figure 1 This is a side view of a stroller according to the first embodiment of this application, wherein the stroller is in a folded state;

[0020] Figure 2 This is a perspective view of a stroller according to the first embodiment of this application, wherein the stroller is in an unfolded state;

[0021] Figure 3 yes Figure 2 A magnified view of part A;

[0022] Figure 4 yes Figure 2 A magnified view of part A from another angle;

[0023] Figure 5 yes Figure 4 An exploded 3D view of the portion shown.

[0024] Figure 6 This is a perspective view of a stroller according to the first embodiment of this application, wherein the stroller is in a folded state;

[0025] Figure 7 yes Figure 6 A magnified view of part B;

[0026] Figure 8 This is a perspective view of a stroller according to the first embodiment of this application, wherein the stroller is in a folded state;

[0027] Figure 9 yes Figure 8 A magnified view of part C;

[0028] Figure 10 This is a partial exploded perspective view of the stroller according to the second embodiment of this application;

[0029] Figure 11 This is a perspective view of a stroller according to a second embodiment of this application, wherein the stroller is in an unfolded state;

[0030] Figure 12 yes Figure 11 A magnified view of part D;

[0031] Figure 13 This is a perspective view of a stroller according to a second embodiment of this application, wherein the stroller is in a folded state;

[0032] Figure 14 yes Figure 13 A magnified view of part E;

[0033] Figure 15 This is a perspective view of the hand joint of the vehicle according to the second embodiment of this application;

[0034] Figure 16 This is a perspective view of the driver's lower joint according to the second embodiment of this application;

[0035] Figure 17 This is a schematic diagram of the lower driver joint according to the second embodiment of this application, showing the internal structure of the lower driver joint;

[0036] Figure 18 This is a partial schematic diagram of a stroller according to the second embodiment of this application, wherein the stroller is in an unfolded state;

[0037] Figure 19 This is a partial schematic diagram of a stroller according to a second embodiment of this application, wherein the stroller is in a folded state.

[0038] List of reference numerals in the attached diagram:

[0039] stroller 1

[0040] Driver 11

[0041] Hand joint 111

[0042] First pivot section 1131

[0043] First plate-shaped portion 11311

[0044] Second plate-shaped portion 11312

[0045] Edge 11313

[0046] Driver's lower joint 112

[0047] Second pivot section 1132

[0048] Third plate-like part 11321

[0049] Fourth plate-like part 11322

[0050] Edge 11323

[0051] Limiting part 114

[0052] Unfolding groove 115

[0053] Converging groove 116

[0054] Limiting hole 117

[0055] 12 at the front of the car

[0056] 13 after the car

[0057] Wheel 14

[0058] 15 ceiling supports

[0059] First canopy support 151

[0060] Second canopy support 152

[0061] 16-seater Detailed Implementation

[0062] To more clearly illustrate the overall concept of this application, a detailed explanation will be provided below with reference to the accompanying drawings.

[0063] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0064] Furthermore, it should be understood in the description of this application that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0065] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two entities connected are not linked by an intermediate structure, but are simply connected to form a whole. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0066] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0067] Figure 1 This is a side view of a stroller according to the first embodiment of this application, wherein the stroller is in a folded state. Figure 2 This is a perspective view of a stroller according to the first embodiment of this application, wherein the stroller is in an unfolded state.

[0068] The stroller 1 of this application may have an unfolded state (e.g., Figure 2 (as shown) and a closed state (as shown) Figure 1 (As shown). The stroller 1 may include a handlebar 11, front legs 12, rear legs 13, and wheels 14. Wheels 14 may be respectively disposed at one end of the front legs 12 and the rear legs 13, so that the stroller 1 can be pushed. The handlebar 11, front legs 12, and rear legs 13 may pivot relative to each other to an extended or folded state. In this embodiment, the stroller 1 may have four wheels 14; however, this application is not limited thereto. Optionally, the stroller 1 may have three wheels, or more than four wheels. The stroller 1 may also include a seat 16 for infants and toddlers to sit on, and may also include other components to constitute different parts of the stroller.

[0069] The rider 11 may include an upper joint 111 and a lower joint 112. The upper joint 111 and the lower joint 112 can pivot relative to each other to either an extended or retracted position. Figure 1 As shown, in the retracted state, the upper joint 111 of the rider can be in a substantially vertical position. An elastic element (e.g., a torsion spring) may be provided within the rider 11, which can apply a force to the upper joint 111 to move toward the retracted state.

[0070] The stroller 1 may also include a limiting structure (described in detail below), such as an elastic blocking member or a structure where a protrusion engages with a limiting hole. In the folded state, the limiting structure prevents the hand joint 111 from pivoting toward the unfolded state. The "prevention" described in this application may include a partial degree of prevention, meaning that when the force applied to the limiting structure exceeds a threshold, the limiting structure may no longer have a preventing effect. This threshold may, for example, be within the range of force that a human arm can provide.

[0071] Figure 3 yes Figure 2 A magnified view of part A. Figure 4 yes Figure 2 A magnified view of part A from another angle.

[0072] See Figures 1 to 4 The stroller 1 also includes a canopy support 15. The canopy support 15 may include a first canopy support 151 and a second canopy support 152. The first canopy support 151 is pivotable along the same pivot axis as the hand joint 111. The canopy support 15 can serve as a frame for a canopy (not shown). The canopy may be made of fabric, for example, and can be unfolded and folded to provide light-blocking functionality as needed.

[0073] Figure 5 yes Figure 4 An exploded 3D view of the portion shown. Figure 6 This is a perspective view of a stroller according to the first embodiment of this application, wherein the stroller is in a folded state. Figure 7 yes Figure 6 A magnified view of part B. Figure 8 This is a perspective view of a stroller according to the first embodiment of this application, wherein the stroller is in a folded state. Figure 9 yes Figure 8 A magnified view of part C.

[0074] The upper joint 111 may include a first pivot portion 1131. The lower joint 112 may include a second pivot portion 1132. The first pivot portion 1131 may be provided with a limiting portion 114. In the retracted state, the limiting portion 114 may block the edge 11323 of the second pivot portion 1132 to prevent the first pivot portion 1131 from pivoting relative to the second pivot portion 1132 toward the extended state.

[0075] The limiting part 114 can be formed into a flexible finger. For example... Figure 5 As shown, the limiting portion 114 can be positioned along a direction perpendicular to the surface of the first pivot portion 1131 (e.g., Figure 5(As indicated by the arrow in the diagram) elastic deformation, and the end of the limiting portion 114 may form a protrusion protruding from the surface of the first pivot portion 1131. When the second pivot portion 1132 applies force to the elastic finger exceeding a threshold, the elastic finger undergoes elastic deformation, thereby no longer preventing the pivoting of the second pivot portion 1132. The angle of the protrusion facing the side of the second pivot portion 1132 can be designed according to the requirement of the aforementioned threshold. It can be understood that when the angle is steeper, the threshold is larger, and when the angle is gentler, the threshold is smaller.

[0076] See Figure 5 The first pivot portion 1131 may have a first plate-shaped portion 11311 and a second plate-shaped portion 11312. The second pivot portion 1132 may have a third plate-shaped portion 11321 and a fourth plate-shaped portion 11322. A gap exists between the first plate-shaped portion 11311 and the second plate-shaped portion 11312. A gap exists between the third plate-shaped portion 11321 and the fourth plate-shaped portion 11322. The gap between the first plate-shaped portion 11311 and the second plate-shaped portion 11312 is adapted to accommodate one of the third plate-shaped portion 11321 and the fourth plate-shaped portion 11322. Thus, the first plate-shaped portion 11311 and the second plate-shaped portion 11312 of the first pivot portion 1131 are intersected with the third plate-shaped portion 11321 and the fourth plate-shaped portion 11322 of the second pivot portion 1132, such that the first pivot portion 1131 and the second pivot portion 1132 at least partially overlap.

[0077] See Figure 7 When the stroller frame is in the folded state, the first pivot 1131 and the second pivot 1132 partially overlap, and the limiting part 114 contacts the edge 11323 of the second pivot 1132 to prevent the first pivot 1131 from pivoting towards the unfolded state. Therefore, when the stroller frame is in the folded state, the hand joint 111 and / or the first canopy support 151 and / or the second canopy support 152 that move with it can remain in a fully folded state without being partially unfolded due to gravity or shaking. When it is necessary to unfold the stroller 1, the hand joint 111 can be pivoted by applying a force exceeding a threshold, causing the second pivot 1132 to force the limiting part 114 to elastically deform and no longer protrude significantly from the surface of the first pivot 1131, thus no longer hindering the first pivot 1131 from pivoting outward and unfolding, thereby allowing the stroller 1 to unfold smoothly.

[0078] See also Figure 7The limiting part 114 can be provided at multiple positions on the first pivot part 1131, as long as it is ensured that, in the folded state, the limiting part 114 contacts the edge 11323 of the second pivot part 1132 and is below the common pivot axis R of the first pivot part 1131 and the second pivot part 1132. The position of the limiting part 114 can be appropriately adjusted after taking into account other components of the stroller 1 (e.g., seat cover).

[0079] It is understood that although the limiting part 114 is disposed on the first pivot part 1131 in this embodiment, in other embodiments, the limiting part 114 may also be disposed on the second pivot part 1132. Thus, in the closed state, the limiting part 114 blocks the edge 11313 of the first pivot part 1131 to prevent the first pivot part 1131 from pivoting relative to the second pivot part 1132 toward the unfolded state. When the first pivot part 1131 applies force to the elastic finger exceeding a threshold, the elastic finger undergoes elastic deformation, thereby no longer preventing the pivoting of the second pivot part 1132.

[0080] Figure 11 This is a perspective view of a stroller according to the second embodiment of this application, wherein the stroller is in an unfolded state. Figure 12 yes Figure 11 A magnified view of part D. Figure 13 This is a perspective view of a stroller according to a second embodiment of this application, wherein the stroller is in a folded state. Figure 14 yes Figure 13 A magnified view of part E. Figure 15 This is a perspective view of the hand joint of the driver according to the second embodiment of this application. Figure 16 This is a perspective view of the driver's lower joint according to the second embodiment of this application. Figure 17 This is a schematic diagram of the lower driver joint according to the second embodiment of this application, showing the internal structure of the lower driver joint. Figure 18 This is a partial schematic diagram of a stroller according to the second embodiment of this application, wherein the stroller is in an unfolded state. Figure 19 This is a partial schematic diagram of a stroller according to a second embodiment of this application, wherein the stroller is in a folded state.

[0081] The following will only describe the differences between the second embodiment and the first embodiment, and the same parts will be omitted to avoid repetition.

[0082] In the second embodiment, as Figure 15 As shown, the limiting portion 114 can be formed as a protrusion and can be disposed on the first pivot portion 1131. Figure 12 and Figure 14 As shown, the second pivot portion 1132 may have an unfolding groove 115, a retracting groove 116, and a limiting hole 117. In the unfolded state, the limiting portion 114 may be located in the unfolding groove 115 (e.g., ...). Figure 12As shown), during the process of moving from the unfolded state to the retracted state, for example, by pivoting, the limiting part 114 leaves the unfolding groove 115 and moves outside the second pivot part 1132, then re-enters the retracting groove 116, and finally leaves the retracting groove 116 and enters the limiting hole 117 (as shown). Figure 14 (As shown), so that the protrusion is held within the limiting hole 117. The limiting hole 117 may have a certain length to allow the hand joint 111 of the vehicle to pivot within a certain range.

[0083] During the pivoting process from the retracted state to the extended state, a force exceeding a threshold can be applied to the upper joint 111, causing the limiting portion 114 to overcome the obstruction of the edge of the limiting hole 117 and leave the limiting hole 117. When the limiting portion 114 is in the position between the limiting hole 117 and the retracted groove 116, the limiting portion 114 can contact the second pivot portion 1132 and generate friction. Further extending the upper joint 111 causes the limiting portion 114 to eventually return to the extended groove 115 (as shown). Figure 18 (As shown).

[0084] like Figure 17 As shown, the unfolding groove 115 and the retracting groove 116 may be formed on the edge 11323 of the second pivot portion 1132. Figure 15 As shown, a limiting portion 114 (protrusion) may be formed on the edge 11313 of the first pivot portion 1131. The unfolding groove 115 and the retracting groove 116 prevent unnecessary wear on the limiting portion 114. The retracting groove 116 has a guiding function, guiding the limiting portion 114 during the pivoting process from the unfolded state to the retracted state, allowing the limiting portion 114 to move along the retracting groove 116 into the limiting hole 117.

[0085] See Figure 18 and Figure 19 The unfolding groove 115, the closing groove 116, and the limiting hole 117 can be roughly formed on the circumference of a circle with the pivot axis of the first pivot portion 1131 and the second pivot portion 1132 as the center.

[0086] The diameter of the limiting part 114 (protrusion) can be in the range of 2mm-5mm and the height can be in the range of 1mm-3mm, but this application is not limited thereto.

[0087] It is understood that although the limiting part 114 is provided on the first pivot part 1131 in this embodiment, in other embodiments, the limiting part 114 may also be provided on the second pivot part 1132, and the unfolding groove 115, the retracting groove 116, and the limiting hole 117 are correspondingly provided on the first pivot part 1131. Thus, in the retracted state, the limiting part 114 (protrusion) is constrained by the limiting hole 117 on the first pivot part 1131 to prevent the first pivot part 1131 from pivoting relative to the second pivot part 1132 toward the unfolded state. When a force exceeding a threshold is applied to the upper joint 111, the limiting part 114 disengages from the limiting hole 117, causing the first pivot part 1131 to pivot and unfold relative to the second pivot part 1132.

[0088] It is understood that the limiting portion 114 formed as an elastic finger and the limiting portion 114 formed as a protrusion can be used simultaneously, and both can be provided on the first pivot portion 1131 or the second pivot portion 1132 at the same time, or they can be provided on the first pivot portion 1131 and the second pivot portion 1132 respectively. In addition, the number of elastic fingers and protrusions can also be varied.

[0089] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the claims.

[0090] Although this application has been described with reference to exemplary embodiments, the terminology used is descriptive and exemplary, and not restrictive. Because this application can be embodied in many forms without departing from its spirit and essence, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted in the broadest possible sense within the scope defined by the claims. Therefore, all variations falling within the scope of the claims or their equivalents should be covered by the claims.

Claims

1. A baby stroller, characterized in that, The stroller has an unfolded state and a folded state, and includes a handlebar, front legs, rear legs, and wheels. The wheels are respectively located at one end of the front foot and the rear foot of the vehicle. The rider, the front foot, and the rear foot can pivot relative to each other to either the extended state or the retracted state. The rider includes an upper joint and a lower joint, which are pivotable relative to each other to either the extended state or the retracted state. The stroller also includes a limiting structure that, in the folded state, prevents the upper joint of the stroller from pivoting toward the unfolded state until a force exceeding a threshold is applied to the upper joint of the stroller relative to the lower joint of the stroller, thereby allowing the upper joint of the stroller to pivot toward the unfolded state.

2. The stroller according to claim 1, characterized in that, The stroller also includes a first canopy support, which pivots together with the hand joint of the stroller along the same pivot axis.

3. The stroller according to claim 1, characterized in that, The upper joint of the rider includes a first pivot portion, and the lower joint of the rider includes a second pivot portion. The first pivot portion is provided with a limiting portion. In the retracted state, the limiting portion blocks the edge of the second pivot portion to prevent the first pivot portion from pivoting relative to the second pivot portion toward the extended state.

4. The stroller according to claim 3, characterized in that, The limiting part is formed as an elastic finger. When the second pivoting part applies a force to the elastic finger exceeding a threshold, the elastic finger undergoes elastic deformation, thereby allowing the second pivoting part to pivot.

5. The stroller according to claim 3, characterized in that, The limiting part is formed as a protrusion, and the second pivoting part has an unfolding groove, a retracting groove and a limiting hole. In the unfolded state, the protrusion is located in the unfolding groove. During the pivoting process from the unfolded state to the retracted state, the protrusion passes through the retracting groove and enters the limiting hole.

6. The stroller according to claim 5, characterized in that, The unfolding groove and the retracting groove are formed on the edge of the second pivot portion, and the protrusion is formed on the edge of the first pivot portion.

7. The stroller according to claim 1, characterized in that, The upper joint of the rider includes a first pivot portion, and the lower joint of the rider includes a second pivot portion. The second pivot portion is provided with a limiting portion. In the retracted state, the limiting portion blocks the first pivot portion to prevent the first pivot portion from pivoting relative to the second pivot portion toward the extended state.

8. The stroller according to claim 7, characterized in that, The limiting part is formed as an elastic finger. When the first pivoting part applies a force to the elastic finger exceeding a threshold, the elastic finger undergoes elastic deformation, thereby allowing the second pivoting part to pivot.

9. The stroller according to claim 7, characterized in that, The limiting part is formed as a protrusion, and the first pivot part has an unfolding groove, a retracting groove and a limiting hole. In the unfolded state, the protrusion is located in the unfolding groove. In the process from the unfolded state to the retracted state, the protrusion passes through the retracting groove and enters the limiting hole.

10. The stroller according to claim 9, characterized in that, The unfolding groove and the retracting groove are formed on the edge of the first pivot portion, and the protrusion is formed on the edge of the second pivot portion.

11. The stroller according to claim 3 or 7, characterized in that, The first pivot portion and the second pivot portion each have two plate-shaped portions, and there is a gap between the two plate-shaped portions of the first pivot portion and the two plate-shaped portions of the second pivot portion. The two plate-shaped portions of the first pivot portion and the two plate-shaped portions of the second pivot portion are interlaced and at least partially overlap each other.

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