JP7250886B2 - Handle switching mechanism and child stroller - Google Patents

Description

The present invention relates to a handle switching mechanism and a child stroller.

Commercial child strollers usually have the ability to switch the orientation of the handle so that the caregiver can switch between a rearward orientation with the handle and rear legs on the same side and a forward orientation with the handle and front legs on the same side. , the handle can be pivotally switched. When the caregiver switches the handle in a rearward direction to push the child stroller forward, both the caregiver and the child sitting in the child stroller are forward. Therefore, the child's field of vision becomes wider. When the caregiver shifts the handle backwards to push the child stroller backwards, the caregiver and the child seated in the child stroller face each other. Therefore, the caregiver can easily interact with the child.

However, during the switching operation of the steering wheel, the parts located on the steering wheel scratch the lateral handrails on both sides, not only scratching the lateral handrails, but also generating scratching noise and adversely affect Therefore, conventional child strollers have a poor user experience. For example, see FIG. FIG. 1 is a partial view of a handle switching mechanism in the prior art. As shown in FIG. 1, the handle switching mechanism includes a sliding sleeve 131' attached to the handle. Since the sliding sleeve 131' is formed by molding, a back mold insert forms a stepped structure on the rear surface 1311' of the sliding sleeve 131' as indicated by the dashed line M, Leads to side rail scratching.

An object of the present invention is to provide a handle switching mechanism suitable for a stroller handle of a child stroller for preventing scratching damage to a side rail and preventing scratching noise, and a child stroller equipped with the same.

This is achieved by the handle switching mechanism and the child stroller according to the independent claims. The dependent claims relate to corresponding further developments and improvements.

As will be more clearly understood from the detailed description below, the claimed handle switching mechanism is adapted to the stroller handle of a child stroller. The handle switching mechanism is arranged between the stroller handle and the stroller frame of the child stroller. The handle switching mechanism includes a sliding sleeve, an engagement block, and a sliding component. A sliding sleeve is slidably connected to the stroller handle. An engagement block protrudes from the sliding sleeve and engages the stroller frame. A sliding component is located on the side of the engagement block adjacent to the stroller frame. The sliding component is made of elastic material and the surface of this sliding component is smooth.

According to one embodiment of the invention, a sliding sleeve includes a sleeve body. The sleeve body is slidably connected to the stroller handle. The engagement block protrudes from the sleeve body. An engagement notch is formed in the engagement block. The depression direction of the engagement notch is parallel to the longitudinal direction of the sleeve body, and the sliding component is arranged on the side of the engagement block remote from the sleeve body.

According to one embodiment of the invention, the handle switching mechanism further includes a protective plate located on the side of the engagement block adjacent to the stroller frame, and the sliding component is positioned on the side of the protection plate remote from the engagement block. It is formed.

According to one embodiment of the invention, the protective plate is made of a resilient material, the protective plate being integrally formed with the engagement block or of the engagement block adjacent to the stroller frame. It is a one-piece structure fixed to the sides and formed independently from the engagement block.

According to one embodiment of the invention, the protective plate is made of thermoplastic elastomer or soft plastic material and is of one-piece construction.

According to one embodiment of the invention, the shape of the protection plate matches the shape of the sides of the engagement block adjacent to the stroller frame.

According to one embodiment of the present invention, since the protective plate connecting hole is formed on the protective plate and cooperates with the connecting component, the protective plate is attached to the engaging block by the cooperation of the connecting component and the protective plate connecting hole. Connected.

According to one embodiment of the present invention, the handle switching mechanism further includes an outer cover, and the protective plate is positioned on the engagement block by the outer cover.

According to one embodiment of the invention, the protective plate is made of a resilient material, the protective plate being integrally formed with the outer cover.

According to one embodiment of the invention, the shape of the outer cover matches the shape of the sides of the engagement block adjacent to the stroller frame.

According to one embodiment of the invention, the outer cover connecting hole is formed on the outer cover. A protection plate connection hole is provided on the protection plate and positioned corresponding to the outer cover connection hole, and the outer cover connection hole and the protection plate connection hole cooperate with the connection component, so that the outer cover and the protection plate are , the connecting component, the outer cover connecting hole, and the protective plate connecting hole are connected to the engaging block through cooperation.

According to one embodiment of the invention, the sliding component protrudes from the side of the engagement block adjacent the stroller frame.

According to one embodiment of the invention, the sliding component is a protruding post, protruding block or protruding rib.

According to one embodiment of the invention, the sliding sleeve is slidable with respect to the stroller frame between locked and unlocked positions. The engagement block engages the stroller frame to restrain the stroller handle from pivoting relative to the stroller frame when the sliding sleeve slides to the locked position, the engagement block engaging the sliding sleeve. When the is slid to the unlocked position, the stroller handle disengages from the stroller frame to allow it to pivot relative to the stroller frame.

According to one embodiment of the invention, the handle switching mechanism further comprises a recovering component connected between the sliding sleeve and the stroller handle for driving the sliding sleeve to slide towards the locked position. include.

According to one embodiment of the invention, the handle switching mechanism further includes a fixing component attached to the stroller handle, with an end of the recovery component connected to the fixing component.

Further, the claimed child stroller includes the stroller frame, stroller handle, and handle switching mechanism of any of the foregoing embodiments. The stroller frame includes front legs and rear legs. The stroller handle is pivotally connected to the stroller frame and is pivotable relative to the stroller frame between forward and rearward directions. When the stroller handle faces forward, the stroller handle and the front leg of the stroller frame are on the same side, and when the stroller handle faces rearward, the stroller handle and the rear leg of the stroller frame are on the same side.

According to one embodiment of the invention, the stroller frame further includes side rails and a support frame. The side rails are connected to the front legs, rear legs and support frame. The end of the support frame remote from the side rail is connected to the rear leg such that the stroller handle drives the sliding sleeve to slide along the side rail when the stroller handle pivots relative to the stroller frame.

According to one embodiment of the invention, the child stroller further includes a first engagement component and a second engagement component for removably engaging the engagement block. a first engagement component located on the front leg and provided for engaging the engagement block when the stroller handle is positioned forward; a second engagement component located on the support frame; Provision is made for engaging the engagement block when the stroller handle is positioned rearwardly.

In contrast to the prior art, in the present invention the sliding component is arranged on the side of the engagement block adjacent to the stroller frame, the sliding component being made of resilient material and having a smooth surface. The sliding component can contact the side rail or other structure of the stroller frame to prevent scratching damage to the side rail or other structure of the stroller frame and prevent scratching noise during the pivoting operation of the stroller handle. can be done. The invention thus provides an improved user experience. Furthermore, the present invention also has the advantages of simple structure and easy manufacture.

These and other objects of the present invention will no doubt become apparent to those skilled in the art after reading the following detailed description of the preferred embodiments illustrated in the various figures and drawings. In the following, the invention will be further described by way of example with reference to the accompanying drawings.

FIG. 1 is a partial view of a handle switching mechanism in the prior art. Figure 2 is a schematic diagram of a child stroller according to a first embodiment of the invention; Figure 3 is a schematic diagram of a child stroller according to a first embodiment of the invention; FIG. 4 is an exploded view of the handle switching mechanism according to the first embodiment of the present invention; Figure 5 is a partial view of a child stroller according to a second embodiment of the invention; Figure 6 is a partial view of the child stroller with the protective plate removed according to the second embodiment of the invention; FIG. 7 is an exploded view of a handle switching mechanism according to a third embodiment of the present invention; FIG. 8 is an exploded view of a handle switching mechanism according to a third embodiment of the present invention; Figure 9 is a partial view of the child stroller with the outer cover removed according to the third embodiment of the invention; FIG. 10 is a diagram of a handle switching mechanism according to a fourth embodiment of the present invention; FIG. 11 is a diagram of a handle switching mechanism according to a fourth embodiment of the present invention;

In order to explain the technical specifications and structural features of the present invention as well as the objectives and effects achieved, relevant embodiments and figures are described below.

In the following detailed description of the preferred embodiments, reference is made to the accompanying drawings which form a part hereof and show by way of illustration specific embodiments in which the invention may be practiced.
In this regard, directional terms such as "top", "bottom", "front", "back" are used with reference to the orientation of the figures being described. The components of the present invention can be arranged in several different orientations. As such, the directional terminology is used for the purpose of description and is in no way limiting. Accordingly, the drawings and description are to be considered illustrative in nature and not restrictive. In the following detailed description of the preferred embodiments, reference is made to the accompanying drawings which form a part hereof and show by way of illustration specific embodiments in which the invention may be practiced. Also, the term "connection" is intended to mean an indirect or direct mechanical connection. Thus, when a first device is connected to a second device, the connection may be through a direct mechanical connection or an indirect mechanical connection through other devices and connections. can.

See FIGS. 2 and 3. FIG. Figures 2 and 3 are schematic diagrams of the child stroller 100, from different perspectives, according to a first embodiment of the present invention. As shown in FIGS. 2 and 3, the child stroller 100 includes a stroller frame 110 , a stroller handle 120 and two handle switching mechanisms 130 . Stroller handle 120 is pivotally connected to stroller frame 110 . Each of the handle switching mechanisms 130 is configured to: It is located between the stroller handle 120 and the stroller frame 110 . Stroller frame 110 includes two side rails 111 , front legs 112 , rear legs 113 and two support frames 114 . Two side rails 111 are symmetrically opposite each other and are located on the left and right sides of the stroller frame 110, respectively. The two support frames 114 are symmetrically opposite each other and are located on the left and right sides of the stroller frame 110, respectively. Each of the side rails 111 is connected to a front leg 112 and a rear leg 113 and each of the support frames 114 is connected to a corresponding side rail 111 and rear leg 113 . Preferably, each of the side rails 111, each of the front legs 112, the rear legs 113, and the support frame 114 are pivotable so that the stroller frame 110 can be switched between an extended state and a folded state. configured to Specifically, the front end of each railing 111 is connected to a front leg 112 and rear leg 113, and the top and bottom ends of each support frame 114 are connected to the rear end and rear leg 113 of the corresponding railing 111, respectively. there is

More specifically, both ends of the stroller handle 120 are pivotally connected to two support frames 114 respectively located on the left and right sides of the stroller frame 110 . When stroller handle 120 is positioned rearward, stroller handle 120 and rear leg 113 are positioned on the same side. That is, both stroller handle 120 and rear legs 113 are located on the back of stroller frame 110 . Each of the handle switching mechanisms 130 is then configured to engage or disengage with the corresponding support frame 114 to inhibit or allow rearward departure movement of the stroller handle 120 . be able to. When stroller handle 120 is positioned forward, stroller handle 120 and front leg 112 are positioned on the same side. That is, both the stroller handle 120 and the front legs 112 are located on the front side of the stroller frame 110 . Each of the handle switching mechanisms 130 may then be configured to engage or disengage with the front leg 112 to inhibit or allow forward launch motion of the stroller handle 120 . Further, during pivotal switching maneuvers of the stroller handle 120 between forward and rearward facing, each of the handle switching mechanisms 130 is configured to prevent scratching damage to the corresponding side rail 111 or other structure and to prevent scratching noise. You can also

2 and 3, the stroller frame 110 further includes two first engaging parts 140 and two second engaging parts 141, the first engaging part 140 and the second The engagement component 141 of can have a similar construction. Two first engagement components 140 are disposed on the front leg 112 and respectively engage or disengage the two handle switching mechanisms 130 to disengage the stroller handle when the stroller handle 120 is positioned forward. Positioned to lock or unlock 120 forward. The two second engaging parts 141 are respectively arranged on the two support frames 114 and respectively engage or disengage the two handle switching mechanisms 130 when the stroller handle 120 is arranged rearward. and is positioned to lock or unlock the stroller handle 120 rearwardly.

Because the stroller frame 110 has similar construction and operating principles to conventional stroller frames, a detailed description of the stroller frame 110 is omitted herein for the sake of simplicity. In addition, the two handle switching mechanisms 130 respectively located on the left and right sides of the stroller frame 110 are symmetrical to each other and have the same structure, so a diagram of one side of the handle switching mechanism 130 is provided as follows. be.

Please refer to FIG. FIG. 4 is an exploded view of the steering wheel switching mechanism 130 according to the first embodiment of the invention. As shown in FIG. 4, each of the handle switching mechanisms 130 includes a sliding sleeve 131, an engagement block 1312, and a sliding component 131a. A sliding sleeve 131 is slidably connected to the stroller handle 120 . An engagement block 1312 protrudes from the sliding sleeve 131 and engages the stroller frame 110 . Sliding component 131a is located on the side of engagement block 1312 adjacent stroller frame 110 . The sliding component 131a is made of elastic material and has a smooth surface. The sliding sleeve 131 is slidably switchable along the stroller handle 120 between locked and unlocked positions. When sliding sleeve 131 slides to the locked position, engagement block 1312 and stroller handle 120 engage each other to restrain pivoting of stroller handle 120 . When sliding sleeve 131 slides to the unlocked position, engagement block 1312 and stroller handle 120 disengage from each other to permit pivoting of stroller handle 120 . During the pivoting movement of the stroller handle 120, the sliding component 131a contacts the side rail 111 or other structure of the stroller frame 110 to prevent scratch damage to the side rail 111 or other structure and to prevent scratching noise. can do.

Specifically, the sliding sleeve 131 includes a sleeve body 1311 slidably connected to the stroller handle 120 . The engagement block 1312 protrudes from the sleeve body 1311 . An engagement notch 1313 is formed on engagement block 1312 . The depressing direction of the engagement notch 1313 is substantially parallel to the longitudinal direction of the sleeve body 1311 , ie the sliding direction of the sleeve body 1311 . The sliding component 131 a is located on the side of the engagement block 1312 remote from the sleeve body 1311 , ie, on the side of the engagement block 1312 adjacent to the stroller frame 110 . Engagement notch 1313 is provided on first engagement component 140 located on front leg 112 or second engagement component 141 located on support frame 114 to achieve locking or unlocking action of stroller handle 120 . configured to engage or disengage with the

More specifically, in this embodiment, sliding component 131 a is integrally formed adjacent stroller frame 110 such that the sides of engagement block 1312 are spaced from sleeve body 1311 . The sliding component 131a can be a flat surface structure or an arc surface structure, with an arcuate surface structure adjacent to the junction of the sliding component 131a perimeter and the engagement block 1312 perimeter. An arc-shaped chamfered edge or arc-shaped beveled edge is formed.

Preferably, in this embodiment, the sliding sleeve 131, engagement block 1312, and sliding component 131a are integrally formed with each other to form a unitary structure and are made of the same elastic material, which elastic material is thermoplastic. It can be a thermoplastic elastomer (TPE) or rubber material.

However, the materials and manufacture of the sliding sleeves, engagement blocks and sliding components of the present invention are not limited to this embodiment. For example, in another embodiment the sliding component can be made of an elastic material and the sliding component and sliding sleeve can be made of any other material. Additionally, the sliding sleeve, engagement block, and sliding component can be integrally formed with each other, for example, by overmolding to form a unitary structure.

Also, the structure of the sliding component of the present invention is not limited to this embodiment. For example, in another embodiment, the sliding component can be a protruding column, protruding block, protruding rib, or any other structure.

Additionally, as shown in FIGS. 2-4, the handle switching mechanism 130 includes a recovering component 134 positioned between the stroller handle 120 and the sliding sleeve 131 and a fixed component 134 attached to the stroller handle 120 . and a fixing component 135 . A recovery component 134 is housed inside the stroller handle 120 . The two ends of recovery component 134 are connected to sliding sleeve 131 and fixing component 135, respectively. Recovery component 134 is elastically deformed by sliding sleeve 131 when sliding sleeve 131 is forced to slide toward the unlocked position. When the sliding sleeve 131 is released, the recovery component 134 resiliently recovers to drive the sliding sleeve 131 to slide to the locked position. That is, sliding sleeve 131 is biased by recovery component 134 to move toward the locked position.

More specifically, steering wheel switching mechanism 130 further includes blocking component 136 and pivoting component 137 . A blocking component 136 is secured to the stroller handle 120 and positioned below the sliding sleeve 131 . Blocking portion 1361 protrudes from block component 136 and is positioned to correspond to engagement notch 1313 . When the engagement notch 1313 engages the first engagement component 140 or the second engagement component 141 , the blocking portion 1361 cooperates with the engagement notch 1313 to engage the first engagement component 140 or the second engagement component 141 . Two engaging parts 141 can be constrained to ensure locking of the stroller handle 120 . Additionally, blocking component 136 can be configured to limit the sliding travel distance of sliding sleeve 131 . Additionally, a pivot component 137 is located at the bottom of the stroller handle 120 and is pivotally connected to the support frame 114 to allow the stroller handle 120 to pivot relative to the support frame 114 .

As shown in FIGS. 2 to 4, the principle of operation of the handle switching mechanism 130 is as follows. As shown in FIGS. 2-3, the stroller handle 120 is configured to be pivotable relative to the support frame 114 of the stroller frame 110 about a pivot axis P, the pivot axis P being the center of the stroller. They are arranged along the horizontal direction of the frame 110 . When the stroller handle 120 is positioned as shown in FIG. 2, i.e., when the stroller handle 120 and the rear leg 113 are adjacent to each other and both are located on the rear side of the stroller frame 110, the stroller handle 120 is positioned rearwardly. placed in the direction When it is desired to pivotally switch the stroller handle 120 from a rearward direction to a forward direction, the sliding sleeve 131 is manipulated to slide upward along the first direction F1 to engage the engagement notch 1313 into the supporting position. It can be released from a second engagement piece 141 located on the frame 114 . During the aforementioned process, recovery component 134 can be elastically deformed by sliding sleeve 131 . After the sliding sleeve 131 is placed in the unlocked position, the stroller handle 120 can be pivoted about the pivot axis P along the second direction F2 toward the forward direction. While the stroller handle 120 pivots forward along the second direction F2 about the pivot axis P, the sliding sleeve 131 is positioned corresponding to the side handrail 111 . Therefore, the sliding component 131a, which is made of resilient material and has a smooth surface, can slide along the side railing 111 to prevent scratching damage to the side railing 111 and prevent scratching noise. When the stroller handle 120 is pivotally reached in the forward direction, the engagement notch 1313 aligns with the first engagement component 140 located on the front leg 112 . At this point, the sliding sleeve 131 is released so that the recovery component 134 drives the sliding sleeve 131 back to the locked position, opening the first engagement component 140 and the engagement notch 1313 for locking the stroller handle 120 . can be engaged.

Additionally, if it is desired to pivotally switch the stroller handle 120 from a forward direction to a rearward direction, the sliding sleeve 131 can be manipulated to slide to the unlocked position, which then moves the stroller handle 120 in the second direction F2. can be pivoted along the opposite direction. Thereafter, when the stroller handle 120 reaches a pivotable rearward direction, the sliding sleeve 131 is released to engage the engagement notch 1313 with the second engagement part 141 to lock the stroller handle 120. can be done.

See FIGS. 5 and 6. FIG. FIG. 5 is a partial view of a child stroller 100 according to a second embodiment of the invention. FIG. 6 is a partial view of child stroller 100 with protective plate 132 removed, according to a second embodiment of the present invention. As shown in FIGS. 5 and 6, in this embodiment sliding component 131a is not integrally formed with engagement block 1312. FIG. Specifically, the handle switching mechanism 130 further includes a protection plate 132 . Protective plate 132 is independently formed and made of a resilient material. A flat surface structure or an arcuate surface structure with a smooth surface is formed on the side of the protection plate 132 remote from the engagement block 1312 to form the sliding component 131a. An arc chamfered edge or an arc beveled edge is formed around the protection plate 132 . The shape of the protection plate 132, away from the sleeve body 1311, matches the shape of the side surface of the engagement block 1312 adjacent to the stroller frame 110, and the protection plate 132 is spaced apart from the sleeve body 1311 of the engagement block 1312, away from the stroller. It is installed on the side adjacent to the frame 110 .

However, the invention is not limited to this embodiment. For example, in another embodiment, it is made of a resilient material, has a smooth surface, and is formed on the side of the engagement block remote from the sleeve body and adjacent to the stroller frame to form a sliding component. at least one protrusion, at least one protruding block, at least one protruding rib, or any other structure.

As shown in FIG. 6, sleeve body 1311 and engagement block 1312 of sliding sleeve 131 may be integrally formed with each other or otherwise formed. Engagement block 1312 is a hollow structure. At least one connecting column 1314 protrudes from the inside of engagement block 1312 . At least one protection plate connection hole 1321 is formed on the protection plate 132 and positioned at a position corresponding to the at least one connection post 1314 . The protection plate connection holes 1321 and the connection posts 1314 can be configured to cooperate with connection parts such as screw members, so that the protection plate 132 can be connected to the connection parts to achieve the assembly of the protection plate 132. , protection plate connection hole 1321 and connection post 1314 can be connected to the engagement block 1312 .

However, the invention is not limited to this embodiment. For example, in another embodiment, the engagement block can be a solid structure and the protection plate can be assembled with the engagement block in an engaging or adhesive manner. . Alternatively, in another embodiment, the connecting post can be replaced with a screw nut structure or a screw hole structure.

Also, in this embodiment, the protection plate 132 can be made of a resilient material such as a thermoplastic elastomer (TPE) or a soft plastic material, integrally forming the protection plate 132 and the sliding component 131a. A one-piece structure can be formed. However, the invention is not limited to this embodiment.

Other structures of the second embodiment are identical to those of the first embodiment, with similar variations. For the sake of simplicity, detailed descriptions are omitted here.

See FIGS. 7-9. 7 and 8 are exploded views of the steering wheel switching mechanism 130 from different perspectives according to a third embodiment of the present invention. FIG. 9 is a partial view of child stroller 100 with outer cover 133 removed, according to a third embodiment of the present invention. As shown in FIGS. 7-8 , in this embodiment, handle switching mechanism 130 includes protective plate 132 and outer cover 133 . Protective plate 132 is connected to engagement block 1312 by outer cover 133 .

Specifically, in this embodiment, the protective plate 132 is made of a resilient material, and a flat surface structure or an arcuate surface structure with a smooth surface is formed on the protective plate 132 away from the engagement block 1312 . to form the sliding component 131a. However, the invention is not limited to this embodiment. For example, in another embodiment, protrusions, protruding blocks, protruding ribs, made of elastic material, having a smooth surface and formed on the side of the protective plate remote from the engaging block to form the sliding component, or any other structure. In addition, the shape of the outer cover 133 matches the shape of the sides of the engagement block 1312 away from the sleeve body 1311 and adjacent to the stroller frame 110 to facilitate the connection between the outer cover 133 and the engagement block 1312. .

More specifically, the protective plate 132 and the outer cover 133 can be two separate structures independently formed from different materials and fixed together after formation, or integrally formed from the same or different materials. It can be a formed unitary structure. In this embodiment, the protective plate 132 can be made of a resilient material such as thermoplastic elastomer (TPE) or soft plastic material. Outer cover 133 and protective plate 132 can be made of the same or different materials. The outer cover 133 and protective plate 132 may be integrally formed with each other, eg, by overmolding to form a unitary structure. Additionally, at least one connecting post 1314 protrudes from the inside of the engagement block 1312 . At least one outer cover connecting hole 1331 is formed on the outer cover 133 and positioned corresponding to the at least one connecting post 1314 . At least one protection plate connection hole 1321 is formed on the protection plate 132 and arranged at a position corresponding to the at least one outer cover connection hole 1331 . The outer cover connection hole 1331, the protection plate connection hole 1321 and the connection post 1314 are configured to cooperate with a connection part such as a screw member, so that the outer cover 133 and the protection plate 132 are connected to the connection part, the outer cover connection. Through cooperation of the hole 1331 , the protection plate connection hole 1321 and the connection post 1314 , it can be connected to the engagement block 1312 .

Other structures of the third embodiment are identical to those of the second embodiment, with similar variations. For the sake of simplicity, detailed descriptions are omitted here.

See FIGS. 10 and 11. FIG. 10 and 11 are views of the steering wheel switching mechanism 130 from different perspectives, according to a fourth embodiment of the present invention. As shown in FIGS. 10 and 11, in this embodiment, the sliding component 131a can be a protruding post made of resilient material rather than a flat or arcuate surface structure.

Specifically, as shown in FIGS. 10 and 11, a plurality of protruding posts made of elastic material are formed on the side of the engagement block 1312 remote from the sleeve body 1311 . In this embodiment, there may be two protruding columns symmetrically located on the side of the engagement block 1312 remote from the sleeve body 1311 and respectively located on the two sides of the engagement notch 1313 . The surface of each projecting post can be polished so that the surface of each projecting post is smooth so as to reduce friction between each projecting post and the side rail 111 during the pivotal switching operation of the stroller handle 120. can.

More specifically, in this embodiment, the projecting post and sliding sleeve 131 can be integrally formed with each other and can be made of a resilient material such as a thermoplastic elastomer or soft plastic material. However, the invention is not limited to this embodiment. For example, in another embodiment, the protruding post can be made of a resilient material and the sliding sleeve can be made of another material. The projecting post and sliding sleeve can be integrally formed with each other, for example, by overmolding to form a unitary structure.

Of course, the structure and number of sliding components 131a are not limited to this embodiment. It depends on the actual demands. For example, in another embodiment, the sliding component can be a protruding block or protruding rib and the handle switching mechanism can include at least one sliding component.

Other structures of the third embodiment are identical to those of the first embodiment, with similar variations. For the sake of simplicity, detailed descriptions are omitted here.

Also, the number of handle switching mechanisms, side handrails, and support frames is not limited to those in the above-described embodiment. For example, in another embodiment, the child stroller may include only one handle change mechanism, one side rail, and one support frame on each side.

In summary, in the present invention, a sliding component is placed on the side of the engagement block adjacent to the stroller frame, the sliding component is made of resilient material and has a smooth surface. The sliding component can contact the side rail or other structure of the stroller frame to prevent scratch damage to the side rail or other structure of the stroller frame and prevent scratching noise during the pivoting operation of the stroller handle. . The invention thus provides an improved user experience. Furthermore, the present invention also has the advantages of simple structure and easy manufacture.

Those skilled in the art will readily observe that numerous modifications and alterations of the device and method may be made while retaining the teachings of the invention.

Claims (19)

A handle switching mechanism adapted to a stroller handle of a child stroller, the handle switching mechanism being disposed between the stroller handle and the stroller frame of the child stroller,
the stroller frame includes a side rail;
The handle switching mechanism is
a sliding sleeve slidably connected to the stroller handle;
an engagement block projecting from the sliding sleeve for engaging the stroller frame;
a sliding component located on a side of the engagement block adjacent to the stroller frame, the sliding component being made of a resilient material and having a smooth surface ;
A handle switching mechanism, wherein when the stroller handle pivots relative to the stroller frame, the stroller handle drives the sliding sleeve to slide along the side rail. The sliding sleeve includes a sleeve body slidably connected to the stroller handle, the engagement block protrudes from the sleeve body, and an engagement notch is formed in the engagement block. The handle switching mechanism according to claim 1, wherein: 2. A handle switching mechanism according to claim 1, further comprising a protective plate located on a side of said engagement block adjacent said stroller frame. The protection plate is made of an elastic material, and the protection plate is integrally formed with the engagement block or fixed to a side surface of the engagement block adjacent to the stroller frame, and the engagement 4. The handle switching mechanism according to claim 3, wherein the handle switching mechanism is an integral structure formed independently from the block. Handle switching mechanism according to claim 3 or 4, characterized in that said protective plate is made of thermoplastic elastomer or soft plastic material and is of one-piece construction. 4. The handle switching mechanism according to claim 3, wherein the shape of the protection plate matches the shape of the side surface of the engagement block adjacent to the stroller frame. The protection plate is formed with a protection plate connection hole for cooperating with a connection component, and the protection plate is connected to the engagement block by cooperation of the connection component and the protection plate connection hole. The handle switching mechanism according to claim 3, characterized in that: Further comprising an outer cover, characterized in that the shape of the outer cover matches the shape of the sides of the engagement block, and the protective plate is positioned on the engagement block by the outer cover. 3. The handle switching mechanism according to 3. 9. The handle switching mechanism according to claim 8, wherein said protection plate is made of elastic material, and said protection plate is integrally formed with said outer cover. 9. The handle switching mechanism according to claim 8, wherein the shape of the outer cover matches the shape of the sides of the engagement block adjacent to the stroller frame. An outer cover connection hole is formed in the outer cover, a protection plate connection hole is formed in the protection plate and arranged at a position corresponding to the outer cover connection hole, and the outer cover connection hole and the protection plate connection hole are cooperating with a connecting component, so that the outer cover and the protection plate are connected to the engagement block by cooperation of the connecting component, the outer cover connecting hole and the protecting plate connecting hole; 9. A handle switching mechanism according to claim 8. 2. A handle switching mechanism according to claim 1, wherein said sliding component protrudes from a side of said engagement block adjacent said stroller frame. The handle switching mechanism according to claim 12, characterized in that said sliding component is a protruding post, protruding block or protruding rib. The sliding sleeve is slidable relative to the stroller frame between a locked position and an unlocked position, and the engagement block engages the stroller handle when the sliding sleeve slides to the locked position. The engagement block engages the stroller frame to restrain the stroller handle from pivoting relative to the stroller frame, the engagement block preventing the stroller handle from pivoting relative to the stroller frame when the sliding sleeve slides to a release position. 2. A handle switching mechanism according to claim 1, wherein the handle switching mechanism is disengaged from the stroller frame to enable the switching. 15. The handle switching mechanism of claim 14, further characterized by a recovery component connected between the sliding sleeve and the stroller handle for sliding the sliding sleeve toward the locked position. 16. The handle switching mechanism of claim 15, further characterized by a securing component attached to the stroller handle and an end of the recovery component connected to the securing component. a stroller frame with front and rear legs; and
a stroller handle pivotally connected to the stroller frame and pivotable relative to the stroller frame between a forward direction and a rearward direction, and with the stroller handle when the stroller handle is in the forward direction; a stroller handle wherein the front leg of the stroller frame is on the same side and the stroller handle and the rear leg of the stroller frame are on the same side when the stroller handle is in a rearward direction;
A child stroller comprising
A child stroller further comprising a handle switching mechanism according to any one of claims 1 to 16. The stroller frame further includes a support frame, wherein the side rail is connected to the front leg, the rear leg, and the support frame, and the end of the support frame remote from the side rail is connected to the rear leg. 18. A child stroller according to claim 17, characterized in that it is . further characterized by a first engagement component and a second engagement component for releasably engaging said engagement block, said first engagement component located on said front leg, said stroller handle engaging the engagement block when in a forward orientation, the second engagement component being disposed on the support frame and engaging the engagement block when the stroller handle is in a rearward orientation; Child stroller according to claim 18.

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