GB2612935A

GB2612935A - Brake mechanism and stroller therewith

Info

Publication number: GB2612935A
Application number: GB2302982.0A
Authority: GB
Inventors: Wu Haitao
Original assignee: Wonderland Switzerland AG
Current assignee: Wonderland Switzerland AG
Priority date: 2019-03-22
Filing date: 2020-03-20
Publication date: 2023-05-17
Anticipated expiration: 2040-03-20
Also published as: GB2583577A; GB202004038D0; CN209795575U; GB2616390A; GB202302982D0; DE102020203588A1; GB2583577B; GB2616390B; GB2612935B

Abstract

A brake mechanism for preventing false braking on a wheel (1, figure 1) of a stroller, the wheel is installed on an installation base 2 connected to a frame (201) of the stroller. The brake mechanism includes a brake pedal pivoted to the installation base, a stopping block 21 disposed on the installation base, and a restoring component 4 movably installed between the stopping block and the brake pedal along a moving direction back and forth. The restoring component is biased to a restoring position with a restoring force. When the brake pedal moves from a first position for releasing the wheel to a second position for locking the wheel, the restoring component changes from driving the brake pedal to the first position to driving the brake pedal to the second position. The resilient force may be provided by a compression spring 5 and may be accommodated in slot 31 in the brake pedal. The slot may also accommodate the stopping block and restoring component. The surface of the stopping block may comprise an inclined surface.

Description

BRAKE MECHANISM AND STROLLER THEREWITH

Background of the Invention

1. Field of the Invention

The present invention relates to a brake mechanism and a stroller, and more particularly, to a brake mechanism for preventing false brake on a wheel of a stroller and a stroller therewith.

2. Description of the Prior Art

A stroller is a means of transportation for a baby, which is used to carry a baby and is convenient for parents when going out. Currently, various strollers have appeared on the market. According to the functions and needs of strollers, the strollers can be divided into general strollers, foldable strollers, single or tandem strollers, and so on. For the convenient transportation, the strollers are often equipped with at least three revolving wheels, so that a user can push the stroller easily. However, when the stroller is used to carry the baby and the user does not support the stroller or leaves the stroller, the stroller will be free to move without any restrictions. At this time, if the stroller is bumped by someone or the stroller is located on a slope, the stroller will be moved without any support, which causes danger to the baby sitting in the stroller.

In order to solve the above-mentioned problem, a brake mechanism is installed on a wheel of the existing stroller for braking the wheel. The conventional brake mechanism includes a brake pedal and a brake locking portion disposed on the brake pedal. The brake pedal can be stepped to rotate the brake locking portion for engaging the brake locking portion with a hub of the wheel of the stroller, so as to brake the wheel of the stroller. However, the conventional brake mechanism has a problem of false brake on the wheel as the brake locking portion and the hub of the wheel are not engaged with each other completely. That is, the user supposes to have already stepped on the brake pedal, but actually the brake mechanism cannot lock the wheel accurately, so that the stroller still can move freely. This misunderstanding situation due to the false brake would bring an unexpected danger to the baby sitting in the stroller. Therefore, there is a need to develop a brake mechanism with high safety and false-brake preventing function for the stroller.

Summary of the Invention

Therefore, an objective of the present invention is to provide a brake mechanism with high safety and false-brake preventing function for a stroller.

In order to achieve the aforementioned objective, a brake mechanism for preventing false brake on a wheel of a stroller is disclosed. The wheel is installed on an installation base connected to a frame of the stroller. The brake mechanism includes a brake pedal pivoted to the installation base, a stopping block disposed on the installation base, and a restoring component movably installed between the stopping block and the brake pedal along a moving direction back and forth. The restoring component is biased to a restoring position with a restoring force. The stopping block pushes the restoring component to resist against the restoring force when the brake pedal switches between a first position for releasing the wheel and a second position for locking the wheel, and when the brake pedal moves from the first position to the second position, the restoring component changes from driving the brake pedal to the first position to driving the brake pedal to the second position.

Preferably, according to an embodiment of the present invention, the braking mechanism further includes a resilient component for driving the restoring component along the moving direction back and forth and for providing a resilient force to keep the restoring component in the restoring position.

Preferably, according to an embodiment of the present invention, an accommodating slot is formed inside the brake pedal, and the restoring component and the resilient component are installed in the accommodating slot.

Preferably, according to an embodiment of the present invention, the brake pedal includes a brake main body and a brake locking portion extended from the brake main body, and the accommodating slot is formed inside the brake main body.

Preferably, according to an embodiment of the present invention, the accommodating slot includes a first accommodating slot portion and a second accommodating slot portion narrowly extended from a bottom of the first accommodating slot portion, the stopping block is installed in the first accommodating slot portion, the restoring component is slidably installed in the second accommodating slot portion, and the resilient component is installed in the second accommodating slot portion.

Preferably, according to an embodiment of the present invention, a positioning portion is protruded from a bottom of the second accommodating slot portion and for positioning the resilient corrponent.

Preferably, according to an embodiment of the present invention, a positioning slot is formed on an end of the restoring component and for positioning an end of the resilient component.

Preferably, according to an embodiment of the present invention, the resilient component is a compression spring.

Preferably, according to an embodiment of the present invention, at least one guiding inclined surface is formed on at least one of the stopping block and the restoring component and extended from a top portion toward a lateral side.

Preferably, according to an embodiment of the present invention, the installation base is connected to the frame in an integral manner, in a tight-fit manner, in a pivotal manner, or in a screwing manner.

In order to achieve the aforementioned objective, a stroller is disclosed. The stroller includes a frame, an installation base connected to the frame, and a wheel installed on the installation base. The wheel is pivoted to the frame around a first pivotal axis. The stroller further includes a braking mechanism including a brake pedal pivoted to the installation base around a second pivotal axis misaligned with the first pivotal axis, a stopping block disposed on the installation base, and a restoring component movably installed between the stopping block and the brake pedal along a moving direction back and forth. The restoring component is biased to a restoring position with a restoring force. The stopping block pushes the restoring component to resist against the restoring force when the brake pedal switches between a first position for releasing the wheel and a second position for locking the wheel, and when the brake pedal moves from the first position to the second position, the restoring component changes from driving the brake pedal to the first position to driving the brake pedal to the second position.

Preferably, according to an embodiment of the present invention, an engaging slot is formed on a hub of the wheel for engaging with the brake pedal.

The brake mechanism of the stroller of the present invention includes the restoring component movable along the moving direction back and forth and biased to the restoring position with the restoring force. When the brake pedal is driven by an external force from the first position for releasing the wheel to the second position for locking the wheel, the stopping block pushes the restoring component to resist against the restoring force. If the brake pedal has not reached the second position completely, the restoring component can restore to the restoring position with the restoring force, so as to drive the brake pedal continuously to the second position or back to the first position, so that the brake pedal can reach the second position or restore back to the first position completely without stopping in a midway position between the first position and the second position. It can achieve a purpose of completely locking or releasing the wheel, for preventing the false brake on the wheel. Similarly, when the brake pedal is driven by an external force from the second position for locking the wheel to the first position for releasing the wheel, the stopping block pushes the restoring component to resist against the restoring force. If the brake pedal has not reached the first position completely, the restoring component can restore to the restoring position with the restoring force, so as to drive the brake pedal continuously to the first position or back to the second position, so that the brake pedal can reach the first position or restore back to the second position completely without stopping in a midway position between the first position and the second position. It can achieve a purpose of completely releasing or locking the wheel, for preventing the false brake on the wheel. The braking mechanism can prevent incomplete braking or releasing situations of the stroller, which improves the safety of the stroller.

These and other objectives of the present invention will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the preferred embodiment that is illustrated in the various figures and drawings

Brief Description of the Drawings

FIG. I and FIG.2 are schematic diagrams of a stroller at different views according to an embodiment of the present invention.

FIG. 3 is an enlarged diagram of portion A as shown in FIG.2 according to the embodiment of the present invention. FIG. 4 is a schematic diagram of a brake pedal of a brake mechanism according to the embodiment of the present invention.

FIG. 5 is a schematic diagram of a restoring component of the brake mechanism according to the embodiment of the present invention.

FIG. 6 to FIG. 8 are schematic diagrams of the brake pedal and an installation base of the brake mechanism in different rotary situations according to the embodiment of the present invention.

Detailed Description

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.

Please refer to FIG. 1 to FIG. 8. FIG. 1 and FIG.2 are schematic diagrams of a stroller 200 at different views according to an embodiment of the present invention. FIG. 3 is an enlarged diagram of portion A as shown in FIG.2 according to the embodiment of the present invention. FIG. 4 is a schematic diagram of a brake pedal 3 of a brake mechanism 100 according to the embodiment of the present invention. FIG. 5 is a schematic diagram of a restoring component 4 of the brake mechanism 100 according to the embodiment of the present invention. FIG. 6 to FIG. 8 are schematic diagrams of thc brake pedal 3 and an installation base 2 of the brake mechanism 100 in different rotary situations according to the embodiment of the present invention. The stroller 200 includes a frame 201, at least one installation base 2, a plurality of wheels 1, and the at least one brake mechanism 100. The wheel 1 is pivoted to the frame 201 around a first pivotal axis D1, and the wheel 1 is disposed on a bottom of the frame 201. Specifically, the installation base 2 is connected to the bottom of the frame 201, the wheel 1 is installed on the installation base 2, and the wheel 1 is pivoted to the installation base 2 around the first pivotal axis Di. In this embodiment, the installation base 2 is connected to the frame 201 in a tight-fit manner, but is not limited thereto. For example, the installation base 2 also can be connected to the frame 201 in in an integral manner, in a pivotal manner, or in a screwing manner.

Please refer to FIG. 6 to FIG. 8. The brake mechanism 100 includes the brake pedal 3, a stopping block 21, and the restoring component 4. The brake pedal 3 is pivoted to the installation base 2 around a second pivotal axis D2 misaligned with the first pivotal axis Dl. The stopping block 21 is disposed on the installation base 2 and located in a position on the way from a first position, as shown in FIG. 6, where the brake pedal 3 releases the wheel 1, to a second position, as shown in FIG. 8, where the brake pedal 3 locks the wheel 1. The stopping block 21 can be integrally connected to the installation base 2, but is not limited thereto. For example, the stopping block 21 also can be assembled on the installation base 2. The brake pedal 3 is disposed on the frame 201, and the brake pedal 3 can contact with partial structure of the wheel 1 directly or indirectly, so as to interfere with rotation of the wheel 1, which can stop the stroller 200 or lower a speed of the stroller 200. The restoring component 4 is movably installed between the stopping block 21 and the brake pedal 3 along a moving direction back and forth, and the restoring component 4 is biased to a restoring position with a restoring force. The restoring component 4 also can be disposed on the brake pedal 3 directly. When the brake pedal 3 switches from the first position for releasing the wheel 1 to the second position for locking the wheel 1, the brake pedal 3 drives the restoring component 4 to move back and forth and contacts with the stopping block 21.

Please refer to FIG. 3 and FIG. 4. The operation of releasing or locking the wheel 1 by the brake pedal 3 switching between the first position for releasing the wheel 1 and the second position for locking the wheel 1 is introduced as follows. An engaging slot 11 is formed on a hub of the wheel 1 for engaging with the brake pedal 3.

After the brake pedal rotates in a predetermined angle towards the engaging slot 11, the brake pedal 3 engages with the engaging slot 11 for locking the wheel 1. After the brake pedal 3 rotates in a predetermined angle away from the engaging slot 11, the brake pedal 3 separates from the engaging slot 11 for releasing the wheel 1. Please refer to FIG. 6 to FIG. 8. The first pivotal axis D1 and the second pivotal axis D2 are misaligned with each other, the wheel 1 and the brake pedal 3 are eccentrically pivoted to the installation base 2, and therefore the brake pedal 3 can engage with or separate from the engaging slot 11 on the wheel 1 after the brake pedal 3 rotates relative to the installation base 2. However, the locking and releasing mechanism of the wheel 1 is not limited to this embodiment, and it depends on actual design demand.

When the brake pedal 3 switches between the first position for releasing the wheel 1 and the second position for locking the wheel 1, the stopping block 21 pushes the restoring component 4 to resist against the restoring force, and the restoring component 4 drives the brake pedal 3 to the first position or the second position when the restoring component 4 restores to the restoring position. Preferably, the restoring component 4 can be a resilient tongue. The resilient tongue contacts with the stopping block 21 to be bent inwardly. The bending deformation of the resilient tongue gradually increases with the continuous movement of the brake pedal 3 toward the second position to gradually decrease a transverse length of the resilient tongue, which allows the resilient tongue to pass through the stopping block 21 and then to recover from the inwardly bending situation for driving the brake pedal 3 to move toward the second position continuously.

Alternatively, please refer to FIG. 6 to FIG. 8. A accommodating slot 31 is formed inside the brake pedal 3, the restoring component 4 is slidably disposed in the accommodating slot 31, and the stopping block 21 is disposed in the accommodating slot 31 and contacts against the restoring component 4. When the brake pedal 3 switches between the first position for releasing the wheel 1 and the second position for locking the wheel 1, the stopping block 21 pushes the restoring component 4 to resist against the restoring force and to slide the restoring component 4 away from the stopping block 21 along the accommodating slot 31. With the increasing moving distance of the restoring component 4, the restoring component 4 can pass through the stopping block 21 and restore in a reverse direction by the restoring force, so as to keep driving the brake pedal 3 toward the first position or the second position.

Furthermore, the braking mechanism 100 further includes a resilient component 5 disposed in the accommodating slot 31 along the moving direction of the restoring component 4 and between the restoring component 4 and the brake pedal 3. The resilient component 5 provides a resilient force to drive the restoring component 4 along the moving direction back and forth and to keep the restoring component 4 in the restoring position. When the stopping block 21 pushes the restoring component 4 to slide the restoring component 4 away from the stopping block 21 along the accommodating slot 31, the restoring component 4 compresses the resilient component 5 to deform resiliently, so that the stopping block 21 resists against the resilient force provided by the resilient component 5. The resilient component 5 can be a compression spring, but is not limited thereto.

Please refer to FIG. 6 to FIG. 8. At least one guiding inclined surface is formed on at least one of the stopping block 21 and the restoring component 4 and extended from a top portion toward a lateral side. In this embodiment, two guiding Inclined surfaces are formed on two sides of the stopping block 21, and two guiding inclined surfaces are formed on two sides of the restoring component 4. Two first guiding inclined surfaces 211 are formed on two lateral sides of the stopping block 21. Two second guiding inclined surfaces 41 are formed on two lateral sides of the restoring component 4. When one first guiding inclined surface 211 and one second guiding inclined surface 41 contact against each other and the brake pedal 3 rotates relative to the installation base 2, the stopping block 21 pushes the recovering component 4 to compress the resilient component 5. After the recovering component 4 passes through a top portion of the stopping block 21, which is shown in FIG. V, the resilient component 5 applies a resilient restoring force on the restoring component 4 to rotate the brake pedal 3 continuously by cooperation of the other first guiding inclined surface 211 and the other second guiding inclined surface 41, so as to lock or release the wheel 1 completely. In another embodiment, guiding inclined surfaces can be formed on the stopping block 21 only, or guiding inclined surfaces can be formed on the restoring component 4 only, and it depends on actual design demand. The resilient component 5 can drive the restoring component 4 along the moving direction hack and forth and provide the resilient force to keep the restoring component 4 in the restoring position, so that the restoring component 4 can drive the brake pedal 3 to one of the first position for releasing the wheel 1 and the second position for locking the wheel 1, so as release or lock the wheel 1 completely.

Please refer to FIG. 6. The accommodating slot 31 includes a first accommodating slot portion 311 and a second accommodating slot portion 312 narrowly extended from a bottom of the first accommodating slot portion 311. The stopping block 21 is installed in the first accommodating slot portion 311, the restoring component 4 is slidably installed in the second accommodating slot portion 312, and the resilient component 5 is installed in the second accommodating slot portion 312. When one first guiding inclined surface 211 of the stopping block 21 and one second guiding inclined surface 41 of the restoring component 4 contact against each other, the stopping block 21 contacts an inner wall of the first accommodating slot portion 311 to restrain a rotary range of the brake pedal 3 relative to the installation base 2 on the frame 201. Specifically, a positioning portion 312a is protruded from a bottom of the second accommodating slot portion 312 and for positioning the resilient component 5. An end of the resilient component 5 can be sheathed on the positioning portion 312a. Please refer to FIG. 5. A positioning slot 42 is formed on an end of the restoring component 4 and for positioning another end of the resilient component S. The resilient component 5 can be positioned by cooperation of the positioning portion 312a and the positioning slot 42.

Please refer to FIG. 4. In this embodiment, the brake pedal 3 includes a brake main body 32 and a brake locking portion 33 outwardly extended from the brake main body 32, and the accommodating slot 31 is formed inside the brake main body 32. The brake main body 32 of the brake pedal 3 is pivoted to the installation base 2 around the second pivotal axis D2. The wheel 1 and the brake main body 32 of the brake pedal 3 are eccentrically pivoted to the installation base 2, and therefore the brake locking portion 33 of the brake pedal 3 can engage with or separate from the engaging slot 11 on the wheel 1 after the brake main body 32 of the brake pedal 3 rotates relative to the installation base 2 to drive the brake locking portion 33 connected to the brake main body 32.

Please refer to FIG. 1 to FIG. 3. In this embodiment, there are two installation bases 2 formed on the frame 201, and two braking mechanisms 100 are disposed corresponding to the two installation bases 2, so as to lock or release two wheels 1 located on a rear side of the frame 201. For enhancing structural stability of the stroller 200, a connecting rod 202 is disposed between the two brake pedals 3, and the two brake pedals 3 are pivoted to two ends of the connecting rod 202, respectively.

Please refer to FIG. 1 to FIG. 8. The operational principle of the braking mechanism 2 is disclosed as follows. When it is desired to lock the wheel 1, the brake pedal 3 can be driven by an external force to rotate relative to the installation base 2 downwardly, so as to drive the brake pedal 3 from the first position, which is shown in FIG. 6, for releasing the wheel 1, to the second position, which is shown in FIG. 8, for locking the wheel 1. Firstly, when the brake pedal 3 rotates relative to the installation base 2 downwardly, one first guiding inclined surface 211 of the stopping block 21 and one second guiding inclined surface 41 of the restoring component 4 contact with and slide relative to each other, and the stopping block 21 rotates with the brake pedal 3 and pushes the recovering component 4 to compress the resilient component 5. After the recovering component 4 passes through the top portion of the stopping block 21, the resilient component 5 applies the resilient restoring force on the restoring component 4 to rotate the brake pedal 3 continuously, and the other first guiding inclined surface 211 of the stopping block 21 and the other second guiding inclined surface 41 of the restoring component 4 contact with and slide relative to each other. At this time, if the brake pedal 3 has not completely engaged with the wheel 1 and the brake pedal 3 is not driven by the external force anymore, the restoring component 4 still can rotate the brake pedal 3 continuously by the resilient restoring force generated from the resilient component 5 and by cooperation of the other first guiding inclined surface 211 and the other second guiding inclined surface 41, so as to drive the brake pedal 3 to the second position for locking the wheel 1 completely, which can achieve a purpose of preventing false brake and improving safety. In the condition that the brake pedal 3 rotates relative to the installation base 2 downwardly but the restoring component 4 has not passed through the top portion of the stopping block 21 yet, that is, the one first guiding inclined surface 211 of the stopping block 21 and the one second guiding inclined surface 41 of the restoring component 4 still contact with and slide relative to each other, if the brake pedal 3 is not driven by the external force anymore, the restoring component 4 will drive the brake pedal 3 back to the original first position by the resilient restoring force generated from the resilient component 5, which can achieve false brake prevention.

When it is desired to release the wheel 1, the brake pedal 3 can be driven by an external force to rotate relative to the installation base 2 upwardly, so as to drive the brake pedal 3 from the second position, which is shown in FIG. 8, for locking the wheel 1, to the first position, which is shown in FIG. 6, for releasing the wheel 1. Firstly, when the brake pedal 3 rotates relative to the installation base 2 upwardly, one first guiding inclined surface 211 of the stopping block 21 and one second guiding inclined surface 41 of the restoring component 4 contact with and slide relative to each other, and the stopping block 21 rotates with the brake pedal 3 and pushes the recovering component 4 to compress the resilient component 5. After the recovering component 4 passes through the top portion of the stopping block 21, the resilient component 5 applies the resilient restoring force on the restoring component 4 to rotate the brake pedal 3 continuously, and the other first guiding inclined surface 211 of the stopping block 21 and the other second guiding inclined surface 41 of the restoring component 4 contact with and slide relative to each other. At this time, if the brake pedal 3 has not completely separated from the wheel 1 and the brake pedal 3 is not driven by the external force anymore, the restoring component 4 still can rotate the brake pedal 3 continuously by the resilient restoring force generated from the resilient component 5 and by cooperation of the other first guiding inclined surface 211 and the other second guiding inclined surface 41, so as to drive the brake pedal 3 to the first position for releasing the wheel 1 completely, which can achieve a purpose of preventing incomplete unlocking and improving safety. In the condition that the brake pedal 3 rotates relative to the installation base 2 upwardly but the restoring component 4 has not passed through the top portion of the stopping block 21 yet, that is, the one first guiding inclined surface 211 of the stopping block 21 and the one second guiding inclined surface 41 of the restoring component 4 still contact with and slide relative to each other, if the brake pedal 3 is not driven by the external force anymore, the restoring component 4 will drive the brake pedal 3 back to the original second position by the resilient restoring force generated from the resilient component 5, which can achieve false unlocking prevention.

In conclusion, the brake mechanism 100 of the stroller 200 of the present invention includes the restoring component 4 movable along the moving direction back and forth and biased to the restoring position with the restoring force. When the brake pedal 3 is driven by an external force from the first position for releasing the wheel 1 to the second position for locking the wheel 1, the stopping block 21 pushes the restoring component 4 to resist against the restoring force. If the brake pedal 3 has not reached the second position completely, the restoring component 4 can restore to the restoring position with the restoring force, so as to drive the brake pedal 3 continuously to the second position or back to the first position, so that the brake pedal 3 can reach the second position or restore back to the first position completely without stopping in a midway position between the first position and the second position. It can achieve a purpose of completely locking or releasing the wheel 1, for preventing the false brake on the wheel 1. Similarly, when the brake pedal 3 is driven by an external force from the second position for locking the wheel 1 to the first position for releasing the wheel 1, the stopping block 21 pushes the restoring component 4 to resist against the restoring force. If the brake pedal 3 has not reached the first position completely, the restoring component 4 can restore to the restoring position with the restoring force, so as to drive the brake pedal 3 continuously to the first position or back to the second position, so that the brake pedal 3 can reach the first position or restore back to the second position completely without stopping in a midway position between the first position and the second position. It can achieve a purpose of completely releasing or locking the wheel 1, for preventing the false brake on the wheel 1. The braking mechanism 100 can prevent incomplete braking or releasing situations of the stroller 200, which improves the safety of the stroller 200.

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. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims The following numbered statements set out embodiments of the disclosure: 1. A brake mechanism for preventing false brake on a wheel of a stroller, the wheel being installed on an installation base connected to a frame of the stroller, the brake mechanism comprising: a brake pedal pivoted to the installation base; a stopping block disposed on the installation base; and a restoring component movably installed between the stopping block and the brake pedal along a moving direction back and forth, and the restoring component being biased to a restoring position with a restoring force; wherein the stopping block pushes the restoring component to resist against the restoring force when the brake pedal switches between a first position for releasing the wheel and a second posiLion for locking Lhe wheel, and Lhe resLoring component drives the brake pedal to the first position or the second position when the restoring component restores to the restoring position.

2. The brake mechanism of embodiment 1, further comprising: a resilient component for driving the restoring component along the moving direction back and forth and for providing a resilient force to keep the restoring component in the restoring position.

3. The brake mechanism of embodiment 2, wherein an accommodating slot is formed inside the brake pedal, and the restoring component and the resilient component are installed in the accommodating slot.

4. The brake mechanism of embodiment 3, wherein the brake pedal comprises a brake main body and a brake locking portion extended from the brake main body, and the accommodating slot is formed inside the brake main body.

5. The brake mechanism of embodiment 3, wherein the accommodating slot comprises a first accommodating slot portion and a second accommodating slot portion narrowly extended from a bottom of the first accommodating slot portion, the stopping block is installed in the first accommodating slot portion, the restoring component is slidably installed in the second accommodating slot portion, and the resilient component is installed in the second accommodating slot portion.

6. The brake mechanism of embodiment 5, wherein a positioning portion is protruded from a bottom of the second accommodating slot portion and for positioning the resilient component.

7. The brake mechanism of embodiment 2, wherein a positioning slot is formed on an end of the restoring component and for positioning an end of the resilient component.

8. The brake mechanism of embodiment 2, wherein the resilient component is a compression spring.

9. The brake mechanism of embodiment 1, wherein at least one guiding inclined surface is formed on at least one of the stopping block and the restoring component and extended from a top portion toward a lateral side.

10. The brake mechanism of embodiment 1, wherein the installation base is connected to the frame in an integral manner, in a tight-fit manner, in a pivotal manner, or in a screwing manner.

11. A stroller comprising: a frame; an installation base connected to the frame; a wheel installed on the installation base, the wheel being pivoted to the frame around a first pivotal axis; and a brake mechanism comprising: a brake pedal pivoted to the installation base around a second pivotal axis misaligned with the first pivotal axis; a stopping block disposed on the installation base; and a restoring component movably installed between the stopping block and the brake pedal along a moving direction back and forth, and the restoring component being biased to a restoring position with a restoring force; wherein the stopping block pushes the restoring component to resist against the restoring force when the brake pedal switches between a first position for releasing the wheel and a second position for locking the wheel, and the restoring component drives the brake pedal to the first position or the second position when the restoring component restores to the restoring position.

12. The stroller of embodiment 11, wherein an engaging slot is formed on a hub of the wheel for engaging with the brake pedal.

13. The stroller of embodiment 11, further comprising: a resilient component for driving the restoring component along the moving direction back and forth and for providing a resilient force to keep the restoring component in the restoring position.

14. The stroller of embodiment 13, wherein an accommodating slot is formed inside the brake pedal, and the restoring component and the resilient component are installed in the accommodating slot.

15. The stroller of embodiment 14, wherein the brake pedal comprises a brake main body and a brake locking portion extended from the brake main body, and the accommodating slot is formed inside the brake main body.

16. The stroller of embodiment 14, wherein the accommodating slot comprises a first accommodating slot portion and a second accommodating slot portion narrowly extended from a bottom of the first accommodating slot portion, the stopping block is installed in the first accommodating slot portion, the restoring component is slidably installed in the second accommodating slot portion, and the resilient component is installed in the second accommodating slot portion.

17. The stroller of embodiment 16, wherein a positioning portion is protruded from a bottom of the second accommodating slot portion and for positioning the resilient component.

16. The stroller of embodiment 13, wherein a positioning slot is formed on an end of the restoring component and for positioning an end of the resilient component.

19. The stroller of embodiment 11, wherein at least one guiding inclined surface is formed on at least one of the stopping block and the restoring component and extended from a top portion toward a lateral side.

20. The stroller of embodiment 11, wherein the installation base is connected to the frame in an integral manner, in a tight-fit manner, in a pivotal manner, or in a screwing manner.

Claims

Claims What is claimed is: 1. A brake mechanism for preventing false brake on a wheel of a stroller, the wheel being installed on an installation base connected to a frame of the stroller, the brake mechanism comprising: a brake pedal pivoted to the installation base; a stopping block disposed on the installation base; and a restoring component movably installed between the stopping block and the brake pedal along a moving direction, and the restoring component being biased to a restoring position with a restoring force; wherein when the brake pedal moves from a first position for releasing the wheel to a second position for locking the wheel, the restoring component changes from driving the brake pedal to the first position to driving thc brakc pcdal to thc sccond position.
2. The brake mechanism of claim 1, further comprising: a resilient component for driving the restoring component along the moving direction back and forth and for providing a resilient force to keep the restoring component in the restoring position.
3. The brake mechanism of claim 2, wherein an accommodating slot is formed inside the brake pedal, and the restoring component and the resilient component are installed in the accommodating slot.
4. The brake mechanism of claim 3, wherein the brake pedal comprises a brake main body and a brake locking portion extended from the brake main body, and the accommodating slot is formed inside the brake main body.
5. The brake mechanism of claim 3, wherein the accommodating slot comprises a first accommodating slot portion and a second accommodating slot portion narrowly extended from a bottom of the first accommodating slot portion, the stopping block is installed in the first accommodating slot portion, the restoring component is slidably installed in the second accommodating slot portion, and the resilient component is installed in the second accommodating slot portion.
6. The brake mechanism of claim 5, wherein a positioning portion is protruded from a bottom of the second accommodating slot portion and for positioning the resilient component.
7. The brake mechanism of claim 2, wherein a positioning slot is formed on an end of the restoring component and for positioning an end of the resilient component.
8. The brake mechanism of claim 2, wherein the resilient component is a compression spring.
9. The brake mechanism of claim 1, wherein at least one guiding inclined surface is formed on at least one of the stopping block and the restoring component and extended from a top portion toward a lateral side.
10. The brake mechanism of claim 1, wherein the installation base is connected to the frame in an integral manner, in a tight-fit manner, in a pivotal manner, or in a screwing manner.
11. A stroller comprising: a frame; an installation base connected to the frame; a wheel installed on the installation base; and a brake mechanism comprising: a brake pedal pivoted to the installation base; a stopping block disposed on the installation base; and a restoring component movably installed between the stopping block and the brake pedal along a moving direction, and the restoring component being biased to a restoring position with a restoring force; wherein when the brake pedal moves from a first position for releasing the wheel to a second position for locking the wheel, the restoring component changes from driving the brake pedal to the first position to driving the brake pedal to the second position.
12. The stroller of claim 11, wherein an engaging slot is formed on a hub of the wheel for engaging with the brake pedal.
13. The stroller of claim 11, further comprising: a resilient component for driving the restoring component along the moving direction back and forth and for providing a resilient force to keep the restoring component in the restoring position.
14. The stroller of claim 13, wherein an accommodating slot is formed inside the brake pedal, and the restoring component and the resilient component are installed in the accommodating slot.
15. The stroller of claim 14, wherein the brake pedal comprises a brake main body and a brake locking portion extended from the brake main body, and the accommodating slot is formed inside the brake main body.
16. The stroller of claim 14, wherein the accommodating slot comprises a first accommodating slot portion and a second accommodating slot portion narrowly extended from a bottom of the first accommodating slot portion, the stopping block is installed in the first accommodating slot portion, the restoring component is slidably installed in the second accommodating slot portion, and the resilient component is installed in the second accommodating slot portion.
17. The stroller of claim 16, wherein a positioning portion is protruded from a bottom of the second accommodating slot portion and for positioning the resilient component.
18. The stroller of claim 13, wherein a positioning slot is formed on an end of the restoring component and for positioning an end of the resilient component.
19. The stroller of claim 11, wherein at least one guiding inclined surface is formed on at least one of the stopping block and the restoring component and extended from a top portion toward a lateral side.
20. The stroller of claim 11, wherein the installation base is connected to the frame in an integral manner, in a tight-fit manner, in a pivotal manner, or in a screwing manner.