GB2618931A - Wheel connection mechanism and stroller frame therewith - Google Patents

Wheel connection mechanism and stroller frame therewith Download PDF

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Publication number
GB2618931A
GB2618931A GB2313074.3A GB202313074A GB2618931A GB 2618931 A GB2618931 A GB 2618931A GB 202313074 A GB202313074 A GB 202313074A GB 2618931 A GB2618931 A GB 2618931A
Authority
GB
United Kingdom
Prior art keywords
wheel
locking
stroller frame
wheel shaft
connection mechanism
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB2313074.3A
Other versions
GB202313074D0 (en
GB2618931B (en
Inventor
Wang Er-Xue
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wonderland Switzerland AG
Original Assignee
Wonderland Switzerland AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wonderland Switzerland AG filed Critical Wonderland Switzerland AG
Publication of GB202313074D0 publication Critical patent/GB202313074D0/en
Publication of GB2618931A publication Critical patent/GB2618931A/en
Application granted granted Critical
Publication of GB2618931B publication Critical patent/GB2618931B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
    • B62B9/08—Braking mechanisms; Locking devices against movement
    • B62B9/082—Braking mechanisms; Locking devices against movement foot operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
    • B60B3/001—Lightweight wheels, e.g. for strollers or toys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0002—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture
    • B60B33/0005—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by mounting method
    • B60B33/001—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by mounting method by snapping, clicking or latching in
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B37/00—Wheel-axle combinations, e.g. wheel sets
    • B60B37/10—Wheel-axle combinations, e.g. wheel sets the wheels being individually rotatable around the axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
    • B62B9/10—Perambulator bodies; Equipment therefor
    • B62B9/12—Perambulator bodies; Equipment therefor involving parts that are adjustable, attachable or detachable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/80—Other vehicles not covered by groups B60Y2200/10 - B60Y2200/60
    • B60Y2200/83—Perambulators; Buggies; Strollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2301/00—Wheel arrangements; Steering; Stability; Wheel suspension
    • B62B2301/05—Details of the attachment of the wheel assembly to the chassis

Abstract

A wheel connection mechanism (1, figure 1) includes a wheel shaft 13, a wheel base 11 and at least one locking component 12. The wheel shaft is connected to a wheel and includes at least one locking portion (131, figure 6). The wheel base is installed on the wheel shaft and includes at least one locking part 111 located in a position corresponding to the locking portion. The locking component passes through the locking part and the locking portion for fixing the wheelbase on the wheel shaft. The wheel base further comprises an installation slot 113 structure into which a rear leg (6) of a stroller frame is insertable, and the locking part is disposed on a bottom of the installation slot structure. The locking component may be a positioning pin or a pair of positioning pins which are disposed on two sides of the wheel shaft symmetrically. The locking part may be a locking hole structure disposed on the wheelbase along a direction which is perpendicular to a central axial direction of the wheel. The locking portion may be an indentation structure and may also be disposed along a direction perpendicular to a central axial direction of the wheel shaft.

Description

WHEEL CONNECTION MECHANISM AND STROLLER FRAME THEREWITH
Backgt u=t1 tene entienrinn The present invention relates to a wheel connection mechanism and a stroller frame therewith, and more particularly, to a wheel connection mechanism and a stroller frame having advantages of simple structure, easy assembly and reduced manufacture cost.
De s, t p oI-t}-e Prior'Aft In daily life, strollers are becoming more and more popular, and strollers provide convenience and a safe environment for caregivers. A frame structure of the conventional stroller often includes wheels and multiple tubes, such as front legs, rear legs and a handle, which can be folded together. The connection between the front leg and a front wheel or the connection between the rear leg and a rear wheel is often achieved by a wheel base. The conventional wheel base includes two connecting plates, which extend outwardly, one of the connecting plates is installed on a side of the wheel adjacent to a wheel shaft, and the other of the connecting plates is installed on an outer side of the wheel. The conventional wheel base further includes connecting components installed on two sides of the wheel for connecting the connecting plates in a screwing manner. However, the exposed connecting components or screws might scrape a user, which causes danger to the user. Besides, this conventional connecting mechanism has disadvantages of complicated structure, difficult assembly and high manufacture cost, which cannot meet existing design demands.
Snarm y.11) T ay] .pli Therefore, an objective of the present invention is to provide a wheel connection mechanism and a stroller frame having advantages of simple structure, easy assembly and reduced manufacture cost, for solving the aforementioned problems.
In order to achieve the aforementioned objective, the present invention discloses a wheel connection mechanism including a wheel shaft, a wheel base and at least one locking component. The wheel shaft is connected to a wheel and includes at least one locking portion. The wheel base is installed on the wheel shaft and includes at least one locking part located in a position corresponding to the at least one locking portion. The at least one locking component passes through the at least one locking part and the at least one locking portion for fixing the wheel base on the wheel shaft.
Preferably, the at least one locking component is a positioning pin.
Preferably, the at least one locking part is a locking hole structure disposed on the wheel base along a direction perpendicular to a central axial direction of the wheel base and for engaging with the at least one locking component.
Preferably, the at least one locking portion is an indentation structure sunken inwardly from an outer surface of the wheel shaft and disposed along a direction perpendicular to a central axial direction of the wheel shaft, and for engaging with the at least one locking component.
Preferably, the wheel base further includes an installation slot structure for allowing a rear leg of a stroller frame to insert into, and the locking hole structure Is disposed on a bottom of the installation slot structure.
Preferably, the wheel base further includes an installation portion therefrom, and the installation slot structure is encircled by the installation portion.
Preferably, the installation portion includes a positioning protrusion for engaging with the rear leg of the stroller frame.
Preferably, two locking portions are disposed on two sides of the wheel shaft symmetrically.
In order to achieve the aforementioned objective, the present invention further discloses a stroller frame including a front wheel, a rear wheel, a handle, a front leg, a rear leg, and the wheel connection mechanism. The handle, the front leg and the rear leg are pivoted to one another, the front wheel is installed on the front leg, the rear leg is installed on the wheel base, and the rear wheel is pivotally connected to an end of the wheel shaft.
Preferably, the rear wheel includes a protective housing, an installation opening is formed on the protective housing, the wheel base further includes an extending portion extended toward the installation opening on the protective housing, and the extending portion includes an engaging protrusion for inserting into and engaging with the installation opening.
In summary, the present application provides the wheel connection mechanism including the locking portion of the wheel shaft and the locking part of the wheel base. The wheel base can be sheathed on the wheel shaft and rotated to align the locking part of the wheel base with the locking portion of the wheel shaft. Then, the locking component can be inserted into the corresponding locking part of the wheel base and the corresponding locking portion of the wheel shaft sequentially, so as to install the wheel base on the wheel shaft. The present application can reduce the number of the conventional connecting components, so as to facilitate assembly and reduce the manufacture cost. It also can prevent scrapping a user due to the conventional exposed connecting components, by disposal of the wheel base on the inner side of the wheel, which enhances safety of the stroller. Besides, the wheel base is directly installed on the wheel shaft for increasing stability of installation of the wheel base. The wheel connection mechanism of the present application also has advantages of safe and aesthetic effects.
Thest, and °Mei_ or no doubt be:zoff.e. obi t.c those of nrr after read-ing tne following detailed preferred embodiment that is illustrated in figures and drawings Pt 1.r, if On 1 I1 INH.1] In the art of cie Descri:ptHon of ftle awings FIG. 1 is a schematic drawing of a stroller frame according to an embodiment of the present application.
FIG. 2 is a partial diagram of the stroller frame without illustrating front wheels, a handle and front legs according to the embodiment of the present application.
FIG. 3 is a partial diagram of the stroller frame as shown in FIG. 2 from a view in an arrowed direction A and without illustrating a rear leg at one side according to the embodiment of the present application.
FIG. 4 is an exploded diagram of the stroller frame as shown in FIG. 3 from another view according to the embodiment of the present application.
FIG. 5 is an enlarged diagram of a portion of the stroller frame as shown in FIG. 4 according to the embodiment of the present application.
FIG. 6 is a partial exploded diagram of the stroller frame as shown in FIG. 3 from another view and without illustrating partial components of a brake mechanism according to the embodiment of the present application.
FIG. 7 is a diagram of a pedal according to the embodiment of the present application.
FIG. 8 is a diagram of a linking tube according to the embodiment of the present application.
Detailed Dcacriptlan In order to illustrate technical specifications and structural features as well as achieved purposes and effects of the present invention, relevant embodiments and figures are described as follows.
In the following detailed description of the preferred embodiments, reference is made to the accompanying drawings which form a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. In this regard, directional terminology, such as "top," "bottom," "front," "back," etc., is used with reference to the orientation of the Figure ( s) being described. The components of the present invention can be positioned in a number of different orientations. As such, the directional terminology is used for purposes of illustration and is in no way limiting. Accordingly, the drawings and descriptions will be regarded as illustrative in nature and not as restrictive.
Please refer to FIG. 1 to FIG. 6. FIG. 1 is a schematic drawing of a stroller frame 100 according to an embodiment of the present application. FIG. 2 is a partial diagram of the stroller frame 100 without illustrating front wheels 2, a handle 4 and front legs 5 according to the embodiment of the present application. FIG. 3 is a partial diagram of the stroller frame 100 as shown in FIG. 2 from a view in an arrowed direction A and without illustrating a rear leg 6 at one side according to the embodiment of the present application. FIG. 4 is an exploded diagram of the stroller frame 100 as shown in FIG. 3 from another view according to the embodiment of the present application. FIG. 5 is an enlarged diagram of a portion B of the stroller frame 100 as shown in FIG. 4 according to the embodiment of the present application. FIG. 6 is a partial exploded diagram of the stroller frame 100 as shown in FIG. 3 from another view and without illustrating partial components of a brake mechanism 7 according to the embodiment of the present application. The present application provides the stroller frame 100, the brake mechanism 7 and at least one wheel connection mechanism 1 installed on the stroller frame 100. The stroller frame 100 includes two front wheels 2, two rear wheels 3, a handle 4, two front legs 5 and two rear legs 6. The two front wheels 2, the two rear wheels 3, the handle 4, the two front legs 5 and the two rear legs 6 can be disposed symmetrically. The handle 4, the front legs and the rear legs 6 can be pivoted to one another, so as to fold or unfold the stroller frame 100. The wheel connection mechanism 1 includes a wheel base 11, at least one locking component 12 and a wheel shaft 13 connected to the rear wheels 3. The wheel shaft 13 includes at least one locking portion 131. The wheel base 11 can be formed in a cylindrical structure and sheathe the wheel shaft 13. The wheel base 11 includes at least one locking part 111 located in a position corresponding to the at least one locking portion 131. The locking component 12 passes through the corresponding locking part 111 and the corresponding locking portion 131 for fixing the wheel base 11 on the wheel shaft 13. There can be two wheel connection mechanisms 1 symmetrically disposed on two sides of the stroller frame 100. The wheel connection mechanism 1 disposed on one side of the stroller frame 100 is introduced as follows.
The rear leg 6 and the rear wheel 3 are connected by the wheel connection mechanism 1. The wheel shaft 13 is disposed along a traverse direction of the stroller frame 100. The rear wheel 3 is pivoted to an end of the wheel shaft 13. The rear leg 6 is installed on the wheel base 11. The locking component 12 passes through the locking part 111 of the wheel base 11 and the locking portion 131 of the wheel shaft 13, for fixing the wheel base 11 on the wheel shaft 13, so as to install the rear leg 6 on the wheel shaft 13, i.e. an inner side of the rear wheel 3. The front wheel 2 is installed on the front leg 5. For example, the front wheel 2 can be riveted to the front leg 5. In another embodiment, The front wheel 2 and the front leg 5 also can be connected by the wheel connection mechanism 1, the front leg 5 can be installed on the wheel base 11, and the front wheel 2 can be pivoted to the wheel shaft 13. Understandably, the front wheel 2 can be installed on a bottom of the front leg 5 by another mechanism.
Forassembly of the wheel on the wheel shaft 13, the wheel base 13 can be sheathed on the wheel shaft 13 firstly. The wheel base 13 can be rotated to align the locking part 111 of the wheel base 11 with the locking portion 131 of the wheel shaft 13, and then the locking component 12 can be passed through the locking part 111 and the locking portion 131, so as to install the wheel base 11 on the wheel shaft 13. Finally, the rear wheel 3 can be installed on an outer end of the wheel shaft 13. The present application can reduce the number of the conventional connecting components, so as to facilitate assembly and reduce the manufacture cost. It also can prevent scrapping a user due to the conventional exposed connecting components, by disposal of the wheel base 11 on the inner side of the wheel, which enhances safety of a stroller.
Please refer to FIG. 2 to FIG. 6. In this embodiment, two locking parts 111 are symmetrically disposed on the wheel base 11, two locking portions 131 are symmetrically disposed along a radial direction of the wheel base 13 and on two sides of the wheel shaft 13, and two locking components 12 respectively pass through the two locking parts 111 and the two locking portions 131. The positions and the numbers of the locking components 12, the locking pocions 131 and the locking parts 111 correspond to one another. The symmetrical arrangements of the locking portions 131 and the locking parts 111 can install the wheel base 11 on the wheel shaft 13 stably, so as to enhance reliability of the connection. For example, each locking component 12 can be a positioning pin, the locking parts 111 can be locking hole structures disposed on the wheel base 11 along a direction perpendicular to a central axial direction of the wheel base 11 and for engaging with the corresponding locking components 12, and the locking portions 131 can be indentation structures sunken inwardly from an outer surface of the wheel shaft 13 and disposed along a direction perpendicular to a central axial direction of the wheel shaft 13 and for engaging with the corresponding locking components 12. In this embodiment, there can be no screwing structure formed on the positioning pin, the locking hole structure and the indentation structure. When the rear leg 5 is installed on the wheel base 11, the positioning pin cannot move along the direction perpendicular to the central axial direction of the wheel base 11. Therefore, even if there is no screwing structure formed on the positioning pin, the locking hole structure and the indentation structure, the positioning pin still can lock the locking hole structure and the indentation structure. Alternatively, in another embodiment, there can be screwing structures formed on the locking components 12, the locking portions 131 and the locking parts 111 for stable connection. Specifically, the wheel shaft 13 can include a sleeve and a shaft body connected to the wheel, whicharenot shown in figures. The sleeve sleeves the shaft body, and parts of the sleeve and the shaft body are sunken inwardly to form the indentation structure cooperatively. The two indentation structures are symmetrically disposed along the radial direction of the wheel base 13 and have contours corresponding to the contours of the locking components 12. The locking component 12 can pass through the corresponding locking portion 131 to be hidden in the corresponding locking portion 131.
Please refer to FIG. 2 to FIG. 6. The wheel base 11 further includes an installation slot structure 113 for allowing the rear leg 6 to insert into, and the locking hole structure is disposed on a bottom of the installation slot structure 113. After the locking component 12 is installed in the installation slot structure 113, the rear leg 6 can be installed in the installation slot structure 113 to prevent exposure of the locking component 12, which can achieve safe and aesthetic effects. Specifically, the wheel base 11 further includes an installation portion 114 therefrom, and the installation slot structure 113 is encircled by the installation portion 114, so as to facilitate assembly of the rear leg 6. The installation portion 114 includes a positioning protrusion 1141 for engaging with a positioning indentation of the rear leg 6, so as to facilitate assembly of the rear leg 6.
Please refer to FIG. 2 to FIG. 6. The brake mechanism 7 is disposed on the wheel shaft 13 connected to the rear wheel 3 and for braking the rear wheel 3. The brake mechanism 7 includes a braking rod 71 and a brake driving assembly 72 disposed on the wheel shaft 13. The braking rod 71 is disposed between the rear wheel 3 and the brake driving assembly 72. The brake driving assembly 72 drives the braking rod 71 to contact against the rear wheel 3, so as to brake the rear wheel 3. The brake driving assembly 72 includes a pedal 721, a linking tube 722 and a driving block 723. The driving block 723 contacts against the braking rod 71, and the linking tube 722 rotatably sheathes the wheel shaft 13. The driving block 723 is disposed on an end of the linking tube 722, and the pedal 721 is installed on another end of the linking tube 722 and for driving the linking tube 722 to rotate, so as to drive the driving block 723 to contact against the braking rod 71 for braking the rear wheel 3 by the braking rod 71. Understandably, a pushing block and a corresponding groove can be disposed between the linking tube 722 and the driving block 723, for rotating the driving block 723 by the rotation of the linking tube 722, but it is not limited to this.
Please refer to FIG. 7 and FIG. 8. FIG. 7 is a diagram of the pedal 721 according to the embodiment of the present application. FIG. 8 is a diagram of the linking tube 722 according to the embodiment of the present application. At least one fixing protrusion 724 is formed on the pedal 721, and at least one fixing indentation 725 is formed on the linking tube 722. The fixing protrusior 724 and the fixing indentation 725 can be engaged with each other, so as to connect the pedal 721 and the linking tube 722 stably and conveniently. Alternatively, the fixing protrusion 724 also can be formed on the linking tube 722, and the fixing indentation 725 can be formed on the pedal 721 accordingly. Preferably, the braking rod 71 can resiliently contact against the rear wheel 3 and the brake driving assembly 72, so as to achieve adaptive brake. For example, a resilient component can be installed on the braking rod 71 to achieve the above mechanism, which has an advantage of simple structure.
Please refer to FIG. 2 to FIG. 6. The rear wheel 3 includes a protective housing 31 for protecting the rear wheel 3 from interference of the external environment. An installation opening 311 is formed on the protective housing 31. The wheel base 11 includes an extending portion 112 extending toward the installation opening 311 on the protective housing 31, and the extending portion 112 includes an engaging protrusion 1121 for engaging with the installation opening 311. After the assembly of the wheel base 11, the installation opening 311 on the protective housing 31 can be engaged with the engaging protrusion 1121, so as to position the protective housing 31 and the rear wheel 3, which can increase accuracy of the assembly and achieve compact assembly.
Please refer to FIG. 1 to FIG. 8. The assembly of the stroller frame 100 with the wheel connection mechanism 1 is introduced as follows. After installation of the brake mechanism 7 on the wheel shaft 13, the wheel base 11 can be sheathed on the wheel shaft 13 and rotated to align the locking part 111 of the wheel base 11 with the locking portion 131 of the wheel shaft 13. Then, the locking component 12 can be inserted into the corresponding locking part 111 of the wheel base 11 and the corresponding locking portion 131 of the wheel shaft 13 sequentially, so as to install the wheel base 11 on the wheel shaft 13. Then, the installation opening 311 on the protective housing 31 can be engaged with the engaging protrusion 1121. At this time, the extending portion 112 is installed in the installation opening 311 on the protective housing 31, and the engaging protrusion 1121 is disposed inside the protective housing 31 and engages with the installation opening 311. At last, the rear leg 6 can be installed in the installation slot structure 113 of the wheel base 11, so as to position and cover the locking component 12.
In contrast to the prior art, the present application provides the wheel connection mechanism 1 including the locking portion 131 of the wheel shaft 13 and the locking part 111 of the wheel base 11. The wheel base 11 can be sheathed on the wheel shaft 13 and rotated to align the locking part 111 of the wheel base 11 with the locking portion 131 of the wheel shaft 13. Then, the locking component 12 can be inserted into the corresponding locking part 111 of the wheel base 11 and the corresponding locking portion 131 of the wheel shaft 13 sequentially, so as to install the wheel base 11 on the wheel shaft 13. The present application can reduce the number of the conventional connecting components, so as to facilitate assembly and reduce the manufacture cost. It also can prevent scrapping a user due to the conventional exposed connecting components, by disposal of the wheel base 11 on the inner side of the wheel, which enhances safety of the stroller. Besides, the wheel base 11 is directly installed on the wheel shaft 13 for increasing stability of installation of the wheel base 11. The wheel connection mechanism 1 of the present application also has advantages of safe and aesthetic effects.
:...,rT}l.ccki lied inJihe.--,:y-ti -,..vH I! reLidi I observe t:I-t- Hrons modif': oat-ions and al cms of the ice and me -I may ne medeI e:-eueHii no the he ach ± ii a a oi the in uer to on, 21cflorrij,-,g_. )5::le ld be const-cued as IL rOil, f ed.,...., : ,A,b vrc e me,J.J.-] ci tunds of: he aprended cialms liabered stcAteff.eft, set zarn: L embndIraenLs of the wneei cennectior, ifecb=isn airs flame acolmtnq La tLe present. disclosure: 1. A wheel connection mechanism comprising: a wheel shaft connected to a wheel and comprising at least one locking portion; a wheel base installed on the wheel shaft and comprising at least one locking part located in a position corresponding to the at least one locking portion; and at least one locking component passing through the at least one locking part and the at least one locking portion for fixing the wheel base on the wheel shaft.
2. The wheel connection mechanism of embodiment 1, wherein the at least one locking component is a positioning pin.
3. The wheel connection mechanism of embodiment 2, wherein the at least one locking part is a locking hole structure disposed on the wheel base along a direction perpendicular to a central axial direction of the wheel base and for engaging with the at least one locking component.
4. The wheel connection mechanism of embodiment 3, wherein the at least one locking portion is an indentation structure sunken inwardly from an outer surface of the wheel shaft and disposed along a direction perpendicular to a central axial direction of the wheel shaft, and for engaging with the at least one locking component.
S. The wheel connection mechanism of embodiment 4, wherein the wheel base further comprises an installation slot structure for allowing a rear leg of a stroller frame to insert into, and the locking hole structure is disposed on a bottom of the installation slot structure.
6. The wheel connection mechanism of embodiment 5, wherein the wheel base further comprises an installation portion therefrom, and the installation slot structure is encircled by the installation portion.
7. The wheel connection mechanism of embodiment 6, wherein the installation portion comprises a positioning protrusion for engaging with the rear leg of the stroller frame.
8. The wheel connection mechanism of embodiment 1, wherein two locking portions are disposed on two sides of the wheel shaft symmetrically.
9. A stroller frame comprising a front wheel, a rear wheel, a handle, a front leg, a rear leg, and the wheel connection mechanism of embodiment 1, the handle, the front leg and the rear leg being pivoted to one another, the front wheel being installed on the front leg, the rear leg being installed on the wheel base, and the rear wheel being pivotally connected to an end of the wheel shaft.
10. The stroller frame of embodiment 9, wherein the rear wheel comprises a protective housing, an installation opening is formed on the protective housing, the wheel base further comprises an extending portion extended toward the installation opening on the protective housing, and the extending portion comprises an engaging protrusion for inserting into and engaging with the installation opening.
11. The stroller frame of embodiment 9, wherein the at least one locking component is a positioning pin.
12. The stroller frame of embodiment 11, wherein the at least one locking part is a locking hole structure disposed on the wheel base along a direction perpendicular to a central axial direction of the wheel base and for engaging with the at least one locking component.
13. The stroller frame of embodiment 12, wherein the at least one locking portion is an indentation structure sunken inwardly from an outer surface of the wheel shaft and disposed along a direction perpendicular to a central axial direction of the wheel shaft, and for engaging with the at least one locking component.
14. The stroller frame of embodiment 13, wherein the wheel base further comprises an installation slot structure for allowing the rear leg to insert into, and the locking hole structure is disposed on a bottom of the installation slot structure.
15. The stroller frame of embodiment 14, wherein the wheel base further comprises an installation portion therefrom, and the installation slot structure is encircled by the installation portion.
16. The stroller frame of embodiment 13, wherein the installation portion comprises a positioning protrusion for engaging with the rear leg of the stroller frame.
17. The stroller frame of embodiment 9, wherein two locking portions are disposed on two sides of the wheel shaft symmetrically.

Claims (16)

  1. Claims 1. A wheel connection mechanism comprising: a wheel shaft connected to a wheel and comprising at least one locking portion; a wheel base installed on the wheel shaft and comprising at least one locking part located in a position corresponding to the at least one locking portion; and at least one locking component passing through the at least one locking part and the at least one locking portion for fixing the wheel base on the wheel shaft, wherein the wheel base further comprises an installation slot structure into which a rear leg of a stroller frame is insertable, and the at least one locking part is disposed on a bottom of the installation slot structure.
  2. 2. The wheel connection mechanism of claim 1, wherein the at least one locking component is a positioning pin.
  3. 3. The wheel connection mechanism of claim 2, wherein the at least one locking part is a locking hole structure disposed on the wheel base along a direction perpendicular to a central axial direction of the wheel base and for engaging with the at least one locking component.
  4. 4. The wheel connection mechanism of claim 3, wherein the at least one locking portion is an indentation structure sunken inwardly from an outer surface of the wheel shaft and disposed along a direction perpendicular to a central axial direction of the wheel shaft, and for engaging with the at least one locking component.
  5. 5. The wheel connection mechanism of claim 1, wherein the wheel base further comprises an installation portion therefrom, and the installation slot structure is encircled by the installation portion.
  6. 6. The wheel connection mechanism of claim 5, wherein the installation portion comprises a positioning protrusion for engaging with the rear leg of the stroller frame.
  7. 7. The wheel connection mechanism of claim 1, wherein two locking portions are disposed on two sides of the wheel shaft symmetrically.
  8. 8. A stroller frame comprising a front wheel, a rear wheel, a handle, a front leg, a rear leg, and the wheel connection mechanism of claim 1, the handle, the front leg and the rear leg being pivoted to one another, the front wheel being installed on the front leg, the rear leg being installed on the wheel base, and the rear wheel being pivotally connected to an end of the wheel shaft.
  9. 9. The stroller frame of claim 8, wherein the rear wheel comprises a protective housing, an installation opening is formed on the protective housing, the wheel base further comprises an extending portion extended toward the installation opening on the protective housing, and the extending portion comprises an engaging protrusion for inserting into and engaging with the installation opening.
  10. 10. The stroller frame of claim 8, wherein the at least one locking component is a positioning pin.
  11. 11. The stroller frame of claim 10, wherein the at least one locking part is a locking hole structure disposed on the wheel base along a direction perpendicular to a central axial direction of the wheel base and for engaging with the at least one locking component.
  12. 12. The stroller frame of claim 11, wherein the at least one locking portion is an indentation structure sunken inwardly from an outer surface of the wheel shaft and disposed along a direction perpendicular to a central axial direction of the wheel shaft, and for engaging with the at least one locking component.
  13. 13. The stroller frame of claim 12, wherein the wheel base further comprises an installation slot structure for allowing the rear leg to insert into, and the locking hole structure is disposed on a bottom of the installation slot structure.
  14. 14. The stroller frame of claim 13, wherein the wheel base further comprises an installation portion therefrom, and the installation slot structure is encircled by the installation portion.
  15. 15. The stroller frame of claim 14, wherein the installation portion comprises a positioning protrusion for engaging with the rear leg of the stroller frame.
  16. 16. The stroller frame of claim 8, wherein two locking portions are disposed on two sides of the wheel shaft symmetrically.
GB2313074.3A 2019-07-16 2020-07-10 Wheel connection mechanism and stroller frame therewith Active GB2618931B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910644018.8A CN112238890A (en) 2019-07-16 2019-07-16 Wheel set connecting mechanism and baby carriage frame
GB2010640.7A GB2589167B (en) 2019-07-16 2020-07-10 Wheel connection mechanism and stroller frame therewith

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US5957544A (en) * 1998-05-22 1999-09-28 Hu; Stephen Wheel fixing device for a baby stroller
CN2745828Y (en) * 2004-09-01 2005-12-14 东莞贯新幼童用品有限公司 Rear wheel seat structure of carriage

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IT1219722B (en) * 1988-06-15 1990-05-24 Icaro Olivieri Minuterie Metal DEVICE TO PREVENT THE REMOVAL OF A WHEEL FROM A PIN ON WHICH MONTANA FOLLE IS
US4897895A (en) * 1989-05-25 1990-02-06 Sunshon Molding Co., Ltd. Front caster device for infant stroller
JPH04154477A (en) * 1990-10-16 1992-05-27 Konbi Kk Folding mechanism of stroller
DE4121595C1 (en) * 1991-06-29 1992-08-06 Heinrich Streng Gmbh U. Co Kg, 8621 Mitwitz, De Swivelable arrester securing bolt inserted in retainer - is spring-loaded into support abutment and has locking extension on support facing side
FR2698587B1 (en) * 1992-11-30 1995-02-03 Mj Fi Sarl Wheel of a new type applicable in particular on baby strollers.
FR2724135B1 (en) * 1994-09-05 1996-10-25 Cheng Chin Chang WHEEL FIXING DEVICE FOR A TROLLEY, OR A CAR, PULL OR HAND PUSH
CN2530859Y (en) * 2001-08-29 2003-01-15 古正辉 Quick-dismounting fixing structure for mounting wheels
CN2685186Y (en) * 2004-02-10 2005-03-16 荣邦机械(昆山)有限公司 Rear wheel seat apparatus for children's carriage
CN202624320U (en) * 2012-04-28 2012-12-26 中山市隆成日用制品有限公司 Synchronous brake mechanism of left and right wheels of baby stroller
CN203623761U (en) * 2013-10-18 2014-06-04 浙江晨辉婴宝儿童用品有限公司 Child stroller with rapid-disassembly wheels
CN208119238U (en) * 2017-07-19 2018-11-20 中山市童印儿童用品有限公司 A kind of rocking chair or trolley of provided with wheels

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5957544A (en) * 1998-05-22 1999-09-28 Hu; Stephen Wheel fixing device for a baby stroller
CN2745828Y (en) * 2004-09-01 2005-12-14 东莞贯新幼童用品有限公司 Rear wheel seat structure of carriage

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GB202313074D0 (en) 2023-10-11
CN112238890A (en) 2021-01-19
GB2618931B (en) 2024-03-20
GB202010640D0 (en) 2020-08-26
GB2589167B (en) 2023-10-11
DE102020117595A1 (en) 2021-01-21
GB2589167A (en) 2021-05-26

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