Adjustment device for seat portion of child stroller and child stroller

Abstract

The present invention relates to an adjustment device for a seat portion of a child stroller and a child stroller. The adjustment device for a seat portion of a child stroller of the present invention comprises: a movable grip portion, which is attached to a grip-portion fixing base, provided with a seat connection portion, and configured to make the seat connection portion switch between at least two different orientations relative to the grip-portion fixing base; and a locking mechanism, which is configured to lock the movable grip portion in different orientations relative to the fixing base. By means of the child stroller of the present invention, an inclination angle of a seat portion can be easily adjusted by means of switching the orientation of the movable grip portion, thereby providing different use positions for the seat portion. The movable grip portion serves as part of a grip portion, such that without an additional complex mechanism, the adjustment of the seat portion can also be realized, and especially a seat portion of a portable child stroller can also be adjusted by means of a simple mechanism.

Description

Adjustment device for seat pocket of child stroller and child stroller Technical Field

[0001] The present invention relates to the technical field of child strollers, and more particularly, to an adjusting device for adjusting a seat pocket of a child stroller. Background Art

[0002] Strollers are an essential means of transportation for children, and there are various types of strollers on the market.

[0003] In order to improve the comfort of children and meet the needs of use in different occasions, caregivers hope that the angle of the seat of the child stroller can be adjusted. For example, the seat backrest can be switched between different modes of sitting and lying. In this way, caregivers can use the child stroller according to their needs to improve the convenience of children's travel.

[0004] Currently, strollers with a seat angle adjustment function generally have an independent adjustment device for adjusting the seat angle of the stroller, for example, the adjustment device is attached to the stroller frame. These strollers are generally large in size and relatively complex in structure.

[0005] There are also some lightweight strollers that often omit seat angle adjustment devices in consideration of their lightweight. Although these strollers are easy to carry, they are obviously insufficient in terms of riding comfort for children.

[0006] Therefore, it is desired to have a seat angle adjustment device that can adjust the angle of the stroller seat with a lightweight, simple structure and easy-to-operate mechanism. Summary of the Invention

[0007] In order to address the above-mentioned deficiencies in the prior art, the present invention provides an adjustment device for adjusting the seat pocket of a child stroller, characterized in that the adjustment device includes: a movable handle portion, the movable handle portion being attached to a handle portion fixing seat and having a seat pocket connecting portion, wherein the movable handle portion is configured to switch the seat pocket connecting portion between at least two different orientations relative to the handle portion fixing seat; and a locking mechanism, the locking mechanism being configured to be able to lock the movable handle portion in different orientations relative to the fixing seat.

[0008] According to one aspect of the present invention, the handle portion fixing seat extends along a first direction and has a first end and a second end opposite to each other along the first direction, the movable handle portion includes a pair of movable handle portions, the pair of movable handle portions are arranged at the first end and the second end, at least a portion of the movable handle portion extends along a second direction perpendicular to the first direction, and the seat pocket connecting portion is arranged at the distal end of at least a portion of the movable handle portion away from the fixing seat.

[0009] According to another aspect of the present invention, the adjustment device includes a pivot mechanism, and the different orientations include a first orientation and a second orientation; with the help of the pivot mechanism, the movable grip portion is configured to pivot relative to the fixed base between the first orientation and the second orientation.

[0010] According to another aspect of the present invention, the grip portion fixing seat extends along a first direction and has a first end and a second end opposite to each other along the first direction, and the pivot mechanism forms a pivot axis parallel to the first direction.

[0011] Preferably, the pivot mechanism forms a pivot axis parallel to the first direction, and the locking mechanism includes an actuating component and a limiting assembly, wherein the limiting assembly is arranged at the intersection position where the movable handle portion and the fixed seat pivot with each other.

[0012] According to yet another aspect of the present invention, a locking mechanism includes an actuating member and a locking assembly, wherein the assembly has a locking member for locking the movable grip portion and an elastic member for keeping the locking member engaged with the movable grip portion.

[0013] According to another aspect of the present invention, the grip portion fixing seat extends along a first direction and has a first end and a second end opposite to each other along the first direction, and the pivot mechanism has a pivot axis perpendicular to the first direction.

[0014] According to another aspect of the present invention, the different orientations include a first orientation and a second orientation; and the movable grip portion is configured to be detachably plugged into the grip portion fixing seat in the first orientation or the second orientation.

[0015] According to another aspect of the present invention, the locking mechanism includes two slots and a rib, the slots are arranged on one of the movable handle portion and the fixed seat, and the ribs are arranged on the other of the movable handle portion and the fixed seat, and the ribs can be respectively inserted and locked into any one of the two slots.

[0016] According to another aspect of the present invention, a child stroller includes: a handle portion; a seat portion, the seat portion including a top attachment; an adjustment device as in the above scheme, wherein the top attachment of the seat portion is connected to the seat portion connecting portion, wherein the different orientations include a first orientation and a second orientation, and when the movable handle portion is in the first orientation, the backrest of the seat portion is at a first angle relative to the vertical direction; when the movable handle portion is in the second orientation, the backrest of the seat portion is at a second angle relative to the vertical direction that is different from the first angle.

[0017] According to another aspect of the present invention, the stroller further includes a retractable push rod, which is respectively connected to the base frame and the handle fixing seat of the stroller; when the movable handle is in a first orientation, the seat connection portion is located on the front side of the push rod, and when the movable handle is in a second orientation, the seat connection portion is located on the rear side of the push rod, and the top attachment includes a flexible or deformable attachment.

[0018] The stroller of the present invention can easily adjust the inclination angle of the seat pocket by switching the orientation of the movable handle portion, providing different usage modes of the seat pocket, including a sitting mode and a lying mode. The movable handle portion is part of the entire handle portion of the stroller, and the seat pocket can be adjusted without adding a complex mechanism. In particular, lightweight strollers can also achieve seat pocket adjustment with a simple mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described based on the exemplary embodiments shown in the accompanying drawings. The exemplary embodiments are given by way of non-limiting illustration. It should be noted that the accompanying drawings are only schematic representations of embodiments of the present invention given by way of non-limiting examples.

[0020] FIG. 1 shows a perspective view of a child stroller according to the present invention.

[0021] FIG2 is a side view showing a first state of the child stroller according to the present invention when the child stroller is in a sitting mode.

[0022] FIG. 3 shows a side view of the stroller according to the present invention in a lying mode.

[0023] FIG. 4 shows an exploded perspective view of an adjusting device according to a first embodiment of the present invention.

[0024] FIG5 is an exploded perspective view of an adjusting device according to a second embodiment of the present invention.

[0025] Reference Signs List 10 Child stroller 20, 20' Handle portion 21, 21' Fixed seat 26, 26' Movable handle portion 27 Seat connection portion 30, 30' Push rod 31 Control button 50 Seat portion 51 Tether 60 Chassis mechanism 61 Wheel 62 Connecting rod 63 Support rod DETAILED DESCRIPTION

[0026] The present invention is further described below with reference to specific embodiments and accompanying drawings. More details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can obviously be implemented in a variety of other ways different from the description herein. Those skilled in the art can make similar generalizations and deductions based on actual application situations without violating the connotation of the present invention. Therefore, the scope of protection of the present invention should not be limited by the content of this specific embodiment.

[0027] In the following detailed description, terms indicating directions such as “front”, “rear”, “top / upper”, and “bottom / lower” are defined based on the directions of the stroller in a normal use state.

[0028] FIG1 shows a perspective view of a stroller 10 according to a preferred embodiment of the present invention. FIG2 and FIG3 show side views of the stroller 10 in two different usage positions according to the preferred embodiment of the present invention. FIG2 shows the seat portion 50 of the stroller 10 in a sitting position, while FIG3 shows the seat portion 50 in a reclining position. In FIG3 , the seat portion 50 is tilted at a greater angle than in FIG2 . In general, the stroller 10 shown in FIG1-3 is provided with an adjustment device for adjusting the seat portion 50 of the stroller 10. The adjustment device comprises a movable portion of the handle portion 20, 20' of the stroller, also referred to as a movable handle portion 26, 26' in the first and second embodiments. The movable handle portion 26, 26' is attached to a fixed base 21, 21', which serves as the handle portion 20, 20'. In the embodiment of the present invention, the fixed base 21, 21' is a portion for connecting to the frame portion.

[0029] According to the present invention, the movable handle portions 26, 26' have at least two different orientations relative to the handle portion mounting bases 21, 21'. Specifically, as shown in FIG2 , when viewed from the side of the stroller 10, the movable handle portions 26, 26' are substantially perpendicular to the handle portion mounting bases 21, 21' and extend toward the front (left side in the figure). As shown in FIG3 , the movable handle portions 26, 26' are also substantially perpendicular to the handle portion mounting bases 21, 21' but extend toward the rear of the stroller 10 and at an angle downward. The ends of the movable handle portions 26, 26', away from the mounting bases 21, 21', are provided with a seat pocket connection portion 27 for attaching the seat pocket portion 50. In this embodiment, two tether ropes 51 on both sides of the top of the seat cover 50 are tied to the connecting portion 27, thereby switching the orientation of the movable handle portions 26, 26' relative to the handle fixing seats 21, 21', so that the seat cover 50 can switch between different tilt angles.

[0030] In addition, the adjustment device for adjusting the inclination angle of the seat pocket portion also includes a locking mechanism, which is configured to lock or stop the movable handle portion 26, 26' relative to the handle portion fixing seat 21, 21', so that when the seat pocket angle adjustment is completed, the seat pocket connecting portion 27 on the movable handle portion 26, 26' is locked in the set orientation, and the inclination angle of the backrest of the seat pocket portion 50 is kept unchanged accordingly.

[0031] 1-3 and FIG4 , a child stroller having a seat adjustment device according to a first embodiment of the present invention will be described in detail below.

[0032] As shown in FIG2 , the stroller 10 mainly includes a frame portion and a seat portion 50 . The seat portion 50 is detachably mounted on the frame portion. The frame portion mainly includes a handle portion, a push rod 30 and a base mechanism 60 . The frame portion for supporting and holding the seat portion is configured to be foldable for easy carrying.

[0033] In the first embodiment, the push rod 30 is configured to be retractable. Preferably, the push rod 30 includes at least two sections that can slide and retract relative to each other, allowing the push rod 30 to be retracted to a shorter length as needed. The upper end of the push rod 30 is connected to the fixed seat 21 in the middle of the handle portion. As shown in Figure 1, the fixed seat 21 of the handle portion is a horizontally arranged hollow crossbar, and the top end of the push rod 30 is connected to a position approximately in the middle of the crossbar-shaped fixed seat 21. The extension and retraction of the push rod 30 can be controlled by a control button 31 located in the middle of the fixed seat 21 of the handle portion 20. Pressing the control button 31 causes the push rod 30 to retract and retract. Releasing the control button 31 maintains the push rod 30 in its extended or retracted position.

[0034] In a first embodiment, the adjustment device for adjusting the seat portion 50 of the stroller includes a rotatable movable handle portion 26. That is, the movable handle portion 26 can be rotated relative to the fixed base 21 to achieve different orientations. In a preferred embodiment, the movable handle portions 26 are arranged in pairs, one at each end of the fixed base 21, with respect to the center. As shown in FIG4 , the main body of each movable handle portion 26 is generally L-shaped. That is, the movable handle portion 26 includes a first section extending along the substantially horizontal direction of the rod-shaped fixed base 21 and a second section extending perpendicular to the direction of extension of the fixed base 21, with the first section being relatively short. It should be understood that the movable handle portion 26 may also have other shapes, but should at least include a section extending radially relative to the pivot axis. Preferably, this section of the movable handle portion is perpendicular to the horizontal direction of extension of the fixed base 21.

[0035] The inner ends of the first sections of the movable handles 26 on either side are rotatably mounted to the respective ends of the fixed base 21. Specifically, the ends of the movable handles 26 are inserted into the hollow rod of the fixed base 21, thereby rotatably mounting the movable handles 26 to the fixed base. In other words, in the first embodiment, the hollow ends of the fixed base 21 and the ends of the movable handles 26 form a pivot mechanism that allows the movable handles to rotate, with the pivot axis of this pivot mechanism extending horizontally.

[0036] Preferably, the locking mechanism in the first embodiment includes a control button 31 as an actuating component and a stop assembly disposed at the pivotal interface between the movable handle portion 26 and the fixed seat 21. In a specific embodiment, as shown in FIG4 , the stop assembly includes a rib disposed on the end portion of the movable handle portion 26 that is inserted into the fixed seat 21, and two stoppers disposed at two different locations on the inner surface of the hollow end portion of the fixed seat 21, one of which corresponds to the sitting position and the other to the lying position.

[0037] As shown in Figure 4 , a seat connection portion 27 is provided at the end of the movable handle portion 26 away from the fixed base 21 for connection to the seat portion 50. The connection between the seat connection portion 27 and the seat portion 50 is preferably quick-release, for example, via a hook or quick-release snap-on device, to facilitate easy removal of the entire seat portion 50. As shown in Figures 1-3 , the upper end of the seat portion 50 in the preferred embodiment is connected to the distal end of the second section of the movable handle portion 26 via a tether 51. The tether 51 connection to the movable handle portion 26 leaves sufficient space between the top of the seat portion 50 and the push rod 30 to allow for tilt adjustment. The bottom of the seat portion 50 is connected to the underframe mechanism 60 of the vehicle frame. In the first embodiment, the bottom of the seat pocket 50 is connected to the base frame 60 at three locations: the two side ends of the front edge of the bottom are directly fixedly connected to two forward-extending struts of the base frame 60, while the rear edge of the bottom is attached to a rearward-extending strut 63 of the base frame via a connecting rod 62. As shown in Figures 2 and 3, when the seat pocket 50 is in different tilt angle positions, the angle of the connecting rod 62 relative to the strut 63 also changes.

[0038] The angle adjustment method of the seat portion 50 of the stroller 10 of the first embodiment is as follows:

[0039] The stroller 10 is initially in the sitting position shown in Figures 1 and 2 . The movable handle portion 26 of the stroller 10 is in a first orientation, i.e., the second section of the movable handle portion 26 is located forward of the push rod 30, with the free end of the second section pointing forward of the stroller 10. The seat connection portion 27 is located forward of the push rod 30 and relatively far from the push rod 30. At this time, the tether 51 of the seat 50 is tensioned. The tether 51 is pulled by the seat connection portion 27 in a direction that places the seat 50 in the sitting position, with the backrest of the seat 50 relatively vertical. In this orientation, the tension of the seat 50 causes the rib of the movable handle portion 26 to abut against a stopper on the inner surface of the hollow end of the fixed seat 21, locking the orientation of the movable handle portion 26. When it is necessary to switch the seat pocket portion 50 to the lying position, first press the control button 31, the push rod 30 contracts, and the entire seat pocket portion 50 is in a loose state, thereby allowing the movable handle portion 26 to rotate upward and backward until the rib on the end of the movable handle portion 26 abuts against another limit piece on the inner surface of the hollow end of the fixed seat 21, and it can no longer rotate downward. Then stretch the push rod 30 to the longest state, and the movable button 31 returns to the locked state. The seat pocket portion 50 is tensioned. At this time, the movable handle portion 26 can no longer rotate under the restrictions of the tensioned seat pocket portion 50 and the limit piece in two directions. As a result, the movable handle portion 26 is locked in another predetermined orientation, and the seat pocket portion 50 is in the lying position.

[0040] In order to facilitate the rotation of the movable handle portion 26, when the control button 31 is pressed, the push rod 30 is retracted to a shorter length, and then the movable handle portion 26 is rotated upward and backward. This operation is particularly advantageous. Therefore, when the push rod 30 is shortened, the tether rope 51 of the seat portion 50 is in a completely loose state, so that the movable handle portion 26 can be easily rotated upward and backward from the first orientation shown in Figure 2 to the second orientation shown in Figure 3, which has better operability.

[0041] Second embodiment

[0042] 5 illustrates a seat portion adjusting device for a stroller according to a second embodiment of the present invention.

[0043] The main structure of the stroller of the second embodiment is the same as that of the first embodiment. The frame of the stroller 10 of the second embodiment also includes, from top to bottom, a handle 20', a retractable push rod 30, a chassis 60, and wheels 61 mounted on the chassis.

[0044] The difference from the first embodiment is that, in the second embodiment, the adjustment device for adjusting the seat portion of the stroller includes a detachable movable handle portion 26', which can be switched to different orientations relative to the fixing base 21' by plugging. In other words, the movable handle portion 26' is detachable from the handle fixing base 21', and the movable handle portion 26' has at least two different orientations relative to the fixing base 21' and can be installed on the handle fixing base 21' in two different orientations.

[0045] The locking assembly in the second embodiment may include two slots and a rib, one of which is provided on the handle fixing base 21', and the other on the movable handle 26'. When the seat 50 is in the sitting position, the rib engages and locks with one slot, and when the seat 50 is in the reclining position, the rib engages and locks with the other slot.

[0046] Before the seat cover portion 50 switches its state, the push rod 30 can be retracted to a shorter length. At this time, the tether rope 51 of the seat cover portion 50 is in a loose state, so that the movable handle portion 26' can be easily removed from the first orientation as shown in Figure 2, and then inserted into the fixing seat 21' and locked in the second orientation as shown in Figure 3, which improves operability.

[0047] Third embodiment

[0048] According to a third embodiment, a device for adjusting the tilt angle of the seat portion 50 of a child stroller includes a movable handle portion that can be bent forward and backward. It is contemplated that the movable handle portion includes a pivot mechanism that allows the movable handle portion to bend in two opposite directions relative to the handle portion holder. Specifically, the handle portion holder is arranged horizontally, and the movable handle portions are arranged in pairs at either end of the holder. The pivot mechanism provides a pivot axis perpendicular to the connecting axis between the two ends of the holder. Thus, the pivot mechanism allows the movable handle portion to pivot in the plane of the connecting axis between the two ends of the holder. For example, in a first orientation, the movable handle portion extends horizontally forward relative to the push rod, with the seat portion 50 in a sitting position. In a second orientation, the movable handle portion extends horizontally rearward relative to the push rod in a horizontal plane around the end of the holder. In other words, preferably, in this embodiment, when viewed from the side of the child stroller, the first and second orientations of the movable handle portion are 180 degrees apart.

[0049] In addition, the adjustment device of the third embodiment further includes a locking mechanism, specifically a locking mechanism and a control button that locks the movable handle relative to the fixed seat in two directions. The control button of the locking mechanism can be the button that controls the extension and retraction of the push rod, or it can be a separate button or two separate buttons.

[0050] Similar to the first and second embodiments, before the seat portion switches states, the push rod can be retracted to a shorter length to put the tether rope of the seat portion in a slack state, thereby improving the pivoting operability of the movable handle portion.

[0051] Other variations of the present invention are possible without departing from its scope. In alternative embodiments, the movable handle of the adjustment device may have a greater number of directional positions, such as three or four, allowing the seat portion to be held in a variety of different angular positions, thereby increasing flexibility. To maintain tension on the seat portion at various angular positions, the adjustment device may further include a tether tensioning mechanism to maintain tension on the tether. Specifically, the tensioning mechanism may be configured as a tether retractor.

[0052] In other alternative embodiments, the tether may be replaced by other flexible or deformable attachments, such as chains or link rods. These flexible or deformable attachments can allow the movable handle to have a wider range of adjustment relative to the fixed base, making operation easier. In some alternative embodiments, the top of the seat pocket may not be provided with a tether, and the left and right ends of the top of the seat pocket may be directly fixed to the seat pocket connection portion of the adjustment device.

[0053] In other alternative embodiments, the locking mechanism in the adjustment device may include an actuating component independent of the button controlling the push rod and a locking assembly for locking the rotational position of the movable handle portion relative to the fixed seat. The locking assembly includes a locking component that locks the movable handle portion 26. When the actuating component is pressed, the locking component disengages from the movable handle portion, allowing the movable handle portion 26 to rotate relative to the fixed seat 21, for example, downwardly and backwardly counterclockwise from the position shown in FIG. 2 . When the pressing force on the actuating component is removed, the locking component in the locking assembly returns to an engaged position engaging the movable handle portion 26, locking the movable handle portion 26 relative to the fixed seat 21. Alternatively, the locking assembly may further include an elastic member to maintain the locking component in the engaged position, thereby ensuring that the movable handle portion 26 remains in one of two set orientations and cannot move arbitrarily.

[0054] The child stroller of the present invention changes the orientation of the connection portion on the movable handle portion connected to the seat pocket portion by switching the movable handle portion, thereby driving the adjustment of the inclination angle of the seat pocket portion and providing different usage positions of the seat pocket portion. The movable handle portion is used as part of the push handle portion, and the seat pocket portion can be adjusted without adding a complex mechanism, especially realizing the adjustment of the seat pocket portion of a lightweight child stroller.

[0055] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of the present invention.

Claims

1. An adjusting device for adjusting the seat pocket of a baby stroller, characterized in that, The adjusting device includes: A movable grip part, which is attached to the grip part fixing seat and has a seat pocket connection part, wherein the movable grip part is configured to switch the seat pocket connection part relative to the grip part fixing seat between at least two different orientations; and A locking mechanism, which is configured to be able to lock the movable grip part in the different orientations relative to the fixing seat.

2. The adjusting device according to claim 1, characterized in that, The grip part fixing seat extends in a first direction and has opposite first and second ends along the first direction. The movable grip part includes a pair of movable grip parts, which are respectively arranged at the first end and the second end. At least one section of the movable grip part extends in a second direction perpendicular to the first direction, and the seat pocket connection part is arranged at the distal end of the at least one section of the movable grip part away from the fixing seat.

3. The adjusting device according to claim 1, wherein, The adjusting device includes a pivoting mechanism, and the different orientations include a first orientation and a second orientation. By means of the pivoting mechanism, the movable grip part is configured to be able to pivot relative to the grip part fixing seat between the first orientation and the second orientation.

4. The adjusting device according to claim 3, wherein, The grip part fixing seat extends in a first direction and has opposite first and second ends along the first direction. The pivoting mechanism forms a pivoting axis parallel to the first direction or perpendicular to the first direction.

5. The adjusting device according to claim 4, characterized in that, The pivoting mechanism forms a pivoting axis parallel to the first direction. The locking mechanism includes an actuating component and a limiting component, and the limiting component is arranged at the intersection position where the movable grip part and the fixing seat pivot relative to each other.

6. The adjusting device according to claim 1, wherein The different orientations include a first orientation and a second orientation. The movable grip part is configured to be able to be detachably inserted into the grip part fixing seat in the first orientation or the second orientation.

7. The adjusting device according to claim 6, wherein The locking mechanism includes two slots and a rib, the slots are arranged on one of the movable grip part and the fixing seat, the rib is arranged on the other of the movable grip part and the fixing seat, and the rib can be respectively inserted and locked into any one of the two slots.

8. A baby stroller, comprising: A grip part; A seat pocket part, which includes a top attachment; The adjusting device according to any one of claims 1-7, and the top attachment of the seat pocket part is connected to the seat pocket connection part. Wherein the different orientations include a first orientation and a second orientation. When the movable grip part is in the first orientation, the backrest of the seat pocket part is at a first angle relative to the vertical direction. When the movable grip part is in the second orientation, the backrest of the seat pocket part is at a second angle different from the first angle relative to the vertical direction.

9. The baby stroller according to claim 8, characterized in that It further includes a telescopic push rod, and the push rod is respectively connected to the chassis part of the baby stroller and the grip part fixing seat. When the movable grip part is in the first orientation, the seat pocket connection part is located on the front side of the push rod. When the movable grip part is in the second orientation, the seat pocket connection part is located on the rear side of the push rod. The top attachment includes a flexible or deformable attachment.

10. The stroller for children according to claim 9, wherein, The locking mechanism includes an actuating member that allows the push rod to move telescopically.

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