Brake mechanism and children's stroller including same

Abstract

The present application provides a brake mechanism and a children's stroller including the same. The brake mechanism includes a first locking mechanism used to lock a first wheel, the first locking mechanism including an operating member and a first elastic member, and locking and unlocking of the first wheel is achieved by cooperation between the operating member and the first elastic member, and when the operating member of the first locking mechanism performs a locking operation, the first elastic member provides a pressing force in a locking direction, and when the operating member of the first locking mechanism performs an unlocking operation, it provides a releasing force in the unlocking direction.

Description

[Technical Field]

[0001] The present application relates to a braking mechanism and a children's stroller including the same. [Background technology]

[0002] A stroller for children can reduce fatigue caused by holding a baby for a long time and improve the comfort of life. To prevent safety accidents caused by the stroller accidentally slipping, it is common to install a braking mechanism on the rear wheels of the stroller, and lock the rear wheels with the braking mechanism to brake the entire stroller.

[0003] However, existing braking mechanisms require corresponding link structures to brake the left and right rear wheels simultaneously, which makes the structure complex, prone to brake failure, and poor stability. Summary of the Invention

[0004] The present application provides a brake mechanism that has a simple structure and high stability, and a stroller for children that includes the same.

[0005] According to one solution of the present application, there is provided a brake mechanism including the first locking mechanism, which is used to lock a first wheel, and which includes an operating member and a first elastic member, and which locks and unlocks the first wheel through cooperation between the operating member and the first elastic member, and when the operating member of the first locking mechanism performs a locking operation, the first elastic member provides a pressing force in the locking direction, and when the operating member of the first locking mechanism performs an unlocking operation, it provides a releasing force in the unlocking direction.

[0006] According to some embodiments, the pressing force is applied to the operating member in a direction different from the direction in which the release force is applied to the operating member.

[0007] In some embodiments, the operating member includes a rotating portion and an actuating portion, each provided at both ends of the operating member, and the first locking mechanism includes a first support frame, a rotating shaft is provided on the first support frame, and the rotating portion of the operating member is connected to the rotating shaft so that the operating member can rotate around the rotating shaft.

[0008] In some embodiments, the first support frame includes a first cover body and a second cover body, and the first cover body and the second cover body are snap-fitted together to form a space for accommodating the rotating portion of the operating member.

[0009] According to some embodiments, the first locking structure further includes a first locking groove disposed in a hub frame of the first wheel.

[0010] In some embodiments, the brake mechanism further includes a traction member, and the operating member further includes a first snap end and a first engagement end, one end of the traction member connected to the first locking mechanism and surrounding the rotating portion of the operating member, and the first engagement end connected to the first snap end can be locked into or unlocked from the first locking groove.

[0011] According to some embodiments, the first elastic member of the first locking structure is arranged on a side of the first cover body facing the first wheel.

[0012] In some embodiments, the first elastic member includes opposing first and second ends, the first end being connected to a first fixing portion disposed on the first cover body, and the second end being connected to a second fixing portion disposed on the operating member.

[0013] In some embodiments, the connecting line connecting the second fixing portion of the operating member and the first fixing portion of the first cover body in the locked state forms an angle with the connecting line connecting the second fixing portion of the operating member and the first fixing portion of the first cover body in the unlocked state, and the angle is in the range of 35° to 50°.

[0014] In some embodiments, in the locked state, the first elastic member is located below the rotation point of the operating member, and in the unlocked state, the first elastic member is located above the rotation point of the operating member.

[0015] In some embodiments, in the locked state, the elastic force of the first elastic member is divided into a first component force perpendicular to the operating member and a second component force along the operating member to press down on the operating member.

[0016] In some embodiments, in the unlocked state, the elastic force of the first elastic member is divided into a first component force perpendicular to the operating member and a second component force along the operating member to reliably push up the operating member.

[0017] According to some embodiments, the first cover body is further provided with a stop portion for preventing the operating member from continuously rotating upward in the unlocked state.

[0018] In some embodiments, the brake mechanism further includes a second locking mechanism, the second locking mechanism including a second support frame, the engagement member housed within the second support frame, the second elastic member connected to the engagement member, and the elastic force of the second elastic member causing the second locking mechanism to enter the locked state.

[0019] In some embodiments, the second support frame includes a third cover body and a fourth cover body, and the third cover body and the fourth cover body are snap-fitted together to form an accommodating space for accommodating the engaging member.

[0020] According to some embodiments, the fourth cover body is provided with a limiting groove, and the engaging member is movably disposed in the limiting groove.

[0021] According to some embodiments, the second locking mechanism further includes a second locking groove disposed in the hub frame of the second wheel.

[0022] In some embodiments, the engaging member includes a second snap end disposed at one end and a second engaging end disposed at the other end, the second snap end connecting the second elastic member, one end of the traction member connected to the second locking mechanism is connected to the second snap end, and the second engaging end is lockable into or unlockable from the locking groove.

[0023] According to some embodiments, the brake mechanism further includes a traction member, and both the locking and unlocking of the first locking mechanism and the second locking mechanism are linked via the traction member.

[0024] The present application also provides a brake mechanism including a first locking mechanism, a second locking mechanism, and a traction member, wherein the first locking mechanism includes a brake operating member and a first elastic member for simultaneously locking a first wheel and a second wheel, and the second locking mechanism includes an unlocking operating member and a second elastic member for simultaneously unlocking the first wheel and the second wheel, the first elastic member having an elastic force greater than the elastic force of the second elastic member, and the first locking mechanism and the second locking mechanism are linked via the traction member.

[0025] In some embodiments, the first locking mechanism includes a first support frame, the first support frame including a first cover body and a second cover body, the first cover body and the second cover body snap-fitted together to form an accommodating space for accommodating the brake operating member.

[0026] In some embodiments, a first rotation axis is provided on the second cover body, the brake operating member includes a first rotation portion and a first actuation portion, the first rotation portion rotates on the first rotation axis, and the first elastic member is arranged between the first rotation portion and the first cover body.

[0027] In some embodiments, the brake operating member further includes a first snap end disposed on the first rotating portion, and one end of the traction member connected to the first locking mechanism is connected to the first snap end.

[0028] In some embodiments, the first locking mechanism further includes a first engagement groove disposed on a hub frame of the first wheel, and the brake operating member includes a first engagement end disposed on the first rotating portion, the first engagement end being lockable into or unlockable from the first engagement groove.

[0029] In some embodiments, the brake operating member further includes a first protrusion disposed on the first rotating portion, and the second cover body further includes a second protrusion, and the locked or unlocked state of the brake operating member is maintained by different engagement methods of the first protrusion and the second protrusion, respectively.

[0030] In some embodiments, the first protrusion includes two protrusions arranged radially opposite each other around the first rotating part, and the second protrusion includes two protrusions arranged radially opposite each other around the first rotating axis.

[0031] In some embodiments, the second locking mechanism includes a second support frame, the second support frame includes a third cover body and a fourth cover body, and the third cover body and the fourth cover body are snap-fitted together to form an accommodating space for accommodating the unlocking operation member.

[0032] In some embodiments, a second rotation axis is provided on the fourth cover body, the unlocking operation member includes a second rotation portion and a second actuation portion, the second rotation portion rotates on the second rotation axis, and the second elastic member is provided between the second rotation portion and the fourth cover body.

[0033] In some embodiments, the unlocking operation member further includes a second snap end disposed on the second rotating portion, and one end of the pulling member is connected to the second locking mechanism connected to the second snap end.

[0034] In some embodiments, the second locking mechanism further includes a second engagement groove disposed on a hub frame of the second wheel, and the unlocking operating member further includes a second engagement end disposed on the second rotating portion, the second engagement end being lockable into or unlockable from the second engagement groove.

[0035] The towing member of the present application may be a separate structure, including a first towing portion and a second towing portion connected to each other via a connecting member.

[0036] In some embodiments, the connecting member includes a first opening and a second opening, and a first mounting slot and a second mounting slot, the first opening and the second opening being used to receive a first end portion of the first tow portion and a second end portion of the second tow portion, respectively, the first mounting slot having a dimension smaller than a dimension of the first opening, the second mounting slot having a dimension smaller than a dimension of the second opening, the first mounting slot communicating with the first opening, and the second mounting slot communicating with the second opening.

[0037] According to some embodiments, the connecting member is provided on the connecting crossbar connecting the left wheel and the right wheel.

[0038] In some embodiments, the connecting crossbar has a first perforation and a second perforation, the first end portion of the first traction portion passes through the first perforation, the second end portion of the second traction portion passes through the second perforation, and the connecting member is received in the receiving portion and covered by the cover body.

[0039] The present application also provides a child stroller including a wheel assembly including a left wheel and a right wheel, a frame supported by the wheel assembly, and the above-mentioned brake mechanism. [Brief explanation of the drawings]

[0040] The accompanying drawings are included to provide a further understanding of the present disclosure, and are incorporated into and constitute a part of this specification, illustrating embodiments of the disclosure, and together with the description, serve to explain the principles of the disclosure.

[0041] [Figure 1] 1 is a schematic perspective view showing a stroller for children according to a first embodiment of the present invention. [Figure 2] 1 is a schematic perspective view showing a brake mechanism according to a first embodiment of the present invention. [Figure 3]FIG. 2 is a schematic perspective view showing a first locking mechanism according to the first embodiment of the present invention, in which the brake operating member is in a locked state. [Figure 4] FIG. 2 is a schematic perspective view showing a first locking mechanism according to the first embodiment of the present invention, with the brake operating member in an unlocked state. [Figure 5] FIG. 2 is an exploded schematic view showing a first locking mechanism according to the first embodiment of the present application. [Figure 6] FIG. 2 is a schematic diagram showing another perspective view of the first locking mechanism in the first embodiment of the present application. [Figure 7] FIG. 2 is a schematic diagram showing another view of the first locking mechanism in the first embodiment of the present application. [Figure 8] 3A and 3B are diagrams illustrating corresponding positions of a first elastic member in a locked state and an unlocked state of a brake operation member according to a first embodiment of the present invention. [Figure 9] 3A and 3B are diagrams illustrating corresponding positions of a first elastic member in a locked state and an unlocked state of a brake operation member according to a first embodiment of the present invention. [Figure 10] 3A and 3B are diagrams illustrating corresponding angles of a first elastic member when the brake operating member is in a locked state and an unlocked state in the first embodiment of the present application. [Figure 11] FIG. 4 is a schematic diagram showing a second locking mechanism in the first embodiment of the present application, the second locking mechanism being in a locked state. [Figure 12] FIG. 3 is a schematic perspective view showing a second locking mechanism in the first embodiment of the present application, with the second locking mechanism in an unlocked state. [Figure 13] FIG. 3 is an exploded schematic view showing a second locking mechanism according to the first embodiment of the present invention. [Figure 14] FIG. 10 is a schematic perspective view showing a brake mechanism according to a second embodiment of the present invention, with both the left and right wheels in an unlocked state. [Figure 15] FIG. 10 is a schematic diagram showing a brake mechanism according to a second embodiment of the present invention, in which both the left and right wheels are locked. [Figure 16]FIG. 10 is a schematic perspective view showing a first locking mechanism according to a second embodiment of the present invention. [Figure 17] FIG. 10 is another schematic perspective view showing the first locking mechanism in the second embodiment of the present application. [Figure 18] FIG. 10 is an exploded schematic view showing another perspective view of the first locking mechanism in the second embodiment of the present application. [Figure 19] FIG. 10 is a schematic diagram showing a second locking mechanism in a second embodiment of the present invention. [Figure 20] FIG. 10 is another schematic perspective view showing the second locking mechanism in the second embodiment of the present invention. [Figure 21] 10 is a schematic perspective view showing another embodiment of a traction member in which a cover body is covered by a connecting crossbar. FIG. [Figure 22] 10 is a schematic perspective view of another embodiment of the towing member, with the cover body removed from the connecting crossbar to clearly show the internal structure. FIG. [Figure 23] FIG. 10 is a partial schematic view showing a connection portion of a traction member. DETAILED DESCRIPTION OF THE INVENTION

[0042] Exemplary embodiments will now be described in detail with reference to the accompanying drawings. While the present disclosure is susceptible to various modifications and alternatives, specific embodiments thereof are shown by way of example in the accompanying drawings. However, the present disclosure should not be construed as limited to the embodiments set forth herein; on the contrary, the present disclosure covers all modifications, equivalents, and alternatives falling within the spirit and scope of the embodiments.

[0043] In the following description, a stroller for children will be used as an example, but the braking mechanism according to the present application is not limited to strollers for children, and may be used in other children's equipment that requires braking.

[0044] First embodiment Referring to FIG. 1, FIG. 1 is a schematic diagram showing a child stroller according to a first embodiment of the present application. The child stroller 1 generally includes a wheel assembly 60 and a frame 50 supported by the wheel assembly 60. Referring to FIG. 2, FIG. 2 is a schematic diagram showing a brake mechanism according to the first embodiment of the present application. The wheel assembly 60 generally includes a first wheel 62 and a second wheel 64. The first wheel 62 is the right wheel 62 in this embodiment, and the second wheel 64 is, but is not limited to, the left wheel 64 in this embodiment. In order to avoid a safety accident caused by an inadvertent sliding of the child stroller, an operating member 110 is disposed on the right wheel 62. A supervisor can operate the operating member 110 to simultaneously lock the right wheel 62 and the left wheel 64 when the child stroller 1 is temporarily parked, thereby preventing the child stroller 1 from inadvertently sliding. According to this embodiment, the wheel assembly 60 may be, for example, a rear wheel assembly, whereby the left wheel 64 is the left rear wheel and the right wheel 62 is the right rear wheel, and the operating member 110 may be, but is not limited to, a pedal. The children's stroller 1 according to the present application further includes a brake mechanism 10. As shown in FIG. 2, the brake mechanism 10 generally includes a first locking mechanism 100, a second locking mechanism 200, and a traction member 300, which may be, but is not limited to, a pull rope. Based on the embodiment shown in FIG. 2, the first locking mechanism 100 is used to lock the right wheel 62, and the second locking mechanism 200 is used to lock the left wheel 64, but is not limited to this. The traction member 300 of the brake mechanism 10 is used to link the first locking mechanism 100 and the second locking mechanism 200, and for example, by pushing down the operating member 110, the left wheel 64 and the right wheel 62 can be locked simultaneously, and for example, by lifting the operating member 110, the left wheel 64 and the right wheel 62 can be unlocked simultaneously.

[0045] FIG. 2 also shows a first support frame of the first locking mechanism 100. According to this embodiment, the first support frame includes a first cover body 120 and a second cover body 130. FIG. 2 also shows a second locking mechanism 200 including a second support frame, which includes, for example, a third cover body 220 and a fourth cover body 230, where the first cover body 120 and the second cover body 130 are snap-fitted together to form a storage space. Similarly, the third cover body 220 and the fourth cover body 230 are snap-fitted together to form another storage space.

[0046] The structure of the first locking mechanism 100 will be described in detail below with reference to FIGS. 3, 4, 5, and 6. FIG. 3 is a schematic perspective view of the first locking mechanism according to the first embodiment of the present invention, showing the operating member in FIG. 3 in a locked state. FIG. 4 is a schematic perspective view of the first locking mechanism according to the first embodiment of the present invention, showing the operating member in FIG. 4 in an unlocked state. FIG. 4 is a diagram of the unlocked state, FIG. 5 is an exploded schematic view of the first locking mechanism according to the first embodiment of the present invention, and FIG. 6 is a schematic view of another perspective view of the first locking mechanism according to the first embodiment of the present invention. The first locking mechanism 100 mainly includes an operating member 110 and a first elastic member 150 (shown in FIGS. 5 and 6). Specifically, the operating member 110 further includes a rotating portion 113 and an actuating portion 114, which are disposed at both ends thereof, respectively. The rotating portion 113 of the operating member 110 is disposed within the storage space formed by the first cover body 120 and the second cover body 130, and the actuating portion 114 of the operating member 110 is exposed from the storage space formed by the first cover body 120 and the second cover body 130 (see FIG. 2), allowing, for example, a supervisor to easily perform a stepping operation. The operating member 110 further includes a first snap end 115 and a first engagement end 116. The first snap end 115 is connected to one end of the towing member 300 (i.e., the end of the towing member 300 connected to the first locking mechanism 100), and the first engagement end 116 can be locked into a first locking groove 160 provided in the hub frame 621 of the right wheel 62, or can be unlocked by disengaging from the first locking groove 160.

[0047] Furthermore, as shown in FIG. 5 , the second cover body 130 of the first locking mechanism 100 is provided with a rotation shaft 132, and the rotating portion 113 of the operating member 110 is connected to the rotation shaft 132 so that the operating member 110 can rotate about the rotation shaft 132. The first elastic member 150 of the first locking mechanism 100 is disposed on the side of the first cover body 120 facing the right wheel 62. Cooperation between the operating member 110 and the first elastic member 150 and the interlocking effect of the traction member 300 can achieve simultaneous locking and unlocking of the right wheel 62 and the left wheel 64. Referring again to FIG. 7 , this is a schematic diagram showing another perspective view of the first locking mechanism 100 according to the first embodiment of the present application, clearly showing the structure of the first elastic member 150 and the connection relationship between the operating member 110 and the first cover body 120. Specifically, the first elastic member 150 includes a first end 152 and a second end 154 that face each other. The first end 152 is connected to a first fixing portion 122 disposed on the first cover body 120, and the second end 154 is connected to a second fixing portion 112 disposed on the operating member 110. In this manner, the first elastic member 150 is connected between the first cover body 120 and the operating member 110. According to this embodiment, the first end 152 may be in the form of a hook, and similarly, the second end 154 may also be in the form of a hook, but is not limited thereto.

[0048] As shown in FIGS. 4 and 5 , when braking is required, a supervisor can operate the operating member 110 (e.g., step on the pedal). Then, the operating member 110 rotates downward about the rotation shaft 132, and the first engagement end 116 of the operating member 110 engages with the first engagement groove 160, completing the braking operation. When unlocking is required, the supervisor can lift the operating member 110, and the operating member 110 rotates upward about the rotation shaft 132, and the first engagement end 116 of the operating member 110 is unlocked from the first lock groove 160, completing the unlocking operation. Please refer to FIGS. 8 and 9 . FIGS. 8 and 9 respectively show different corresponding positions of the first elastic member 150 when the operating member in the first embodiment of the present application is in the locked state and the unlocked state. The first elastic member 150 applies a pressing force in the locking direction when the operating member 110 of the first locking mechanism 100 performs a locking operation, and applies an unlocking force in the unlocking direction when the operating member 110 of the first locking mechanism 100 performs an unlocking operation, so that both the locking operation and the unlocking operation can be performed reliably. Furthermore, the pressing force is applied to the operating member in a direction different from the direction in which the unlocking force is applied to the operating member. Specifically, as shown in FIG. 8, when the operating member 110 is pressed down, i.e., when the operating member 110 is in the locked state, the first elastic member 150 is located below the rotation point A of the operating member 110, making it easier to apply force to the operating member 110. FIG. 8 is an exploded view of the elastic force F of the first elastic member 150 at this time. The elastic force F of the first elastic member is divided into a first component force F' perpendicular to the operating member 110 and a second component force F'' along the operating member 110. The elastic force F of the first elastic member 150 can reliably press down the operating member 110. However, the distance between the first elastic member 150 and the rotation point A should not be too large. Otherwise, the downward rotation angle of the operating member 110 will be large, resulting in an insufficient depression stroke of the operating member 110, which will cause inconvenience to the supervisor. As shown in FIG. 9, when the operating member 110 is raised, i.e., when the operating member 110 is in the unlocked state, the first elastic member 150 is positioned above the rotation point A of the operating member 110 to ensure a sufficient force is applied to the operating member 110.At this time, the elastic force F of the first elastic member 150 can be divided into a first component force F' perpendicular to the operating member 110 and a second component force F'' along the operating member 110. Therefore, the elastic force F of the first elastic member 150 can reliably lift the operating member 110. However, it is better not to make the distance between the first elastic member 150 and the rotation point A of the operating member 110 too large, otherwise the upward rotation angle of the operating member 110 will be large, and the lifting stroke of the operating member 110 may be insufficient, making it difficult for the supervisor to operate.

[0049] 10 again shows the angles of the first elastic member when the operating member in the first embodiment of the present application is in the locked state and the unlocked state. In the unlocked state, the connecting line connecting second fixed portion 112 of operating member 110 and first fixed portion 122 of first cover body 120 is defined as L1, and in the locked state, the connecting line connecting second fixed portion 112 of operating member 110 and first fixed portion 122 of first cover body 120 is defined as L2. The angle α between the two connecting lines L1 and L2 is in the range of 35° to 50°, preferably 41°, to facilitate the locking and unlocking operations while simultaneously providing sufficient locking and unlocking force.

[0050] Referring again to FIG. 6, according to the embodiment shown in the drawing, the first cover body 120 is further provided with a stop portion 121, which may be, for example, but is not limited to, in the form of a blocking wall, so as to prevent the operating member 110 from further rotating upwards in the unlocked state and to prevent the operating member 110 from rotating upwards after being forced.

[0051] The specific structure of the second locking mechanism 200 according to the first embodiment of the present invention will be described below with reference to FIG. 11 . FIGS. 11 , 12 , and 13 are schematic diagrams illustrating the second locking mechanism according to the first embodiment of the present invention, with the second locking mechanism in FIG. 11 in a locked state. FIG. 12 is a schematic diagram illustrating the second locking mechanism according to the first embodiment of the present invention, with the second locking mechanism in FIG. 12 in an unlocked state. FIG. 13 is an exploded schematic diagram illustrating the second locking mechanism according to the first embodiment of the present invention. The second locking mechanism 200 according to the present invention includes a second support frame, which includes, in order, a third cover body 220, a fourth cover body 230, an engagement member 270, and a second elastic member 250. The engagement member 270 may be, but is not limited to, a pin. The engagement member 270 is accommodated in a receiving space formed by the third cover body 220 and the fourth cover body 230, which are snap-fitted together. The second elastic member 250 is connected to one end of the engagement member 270. Specifically, in the illustrated embodiment, the fourth cover body 230 is provided with a limiting groove 231. The engagement member 270 is movably disposed within the limiting groove 231. In the illustrated embodiment, the engagement member 270 includes a second snap end 271 disposed at one end thereof and a second engagement end 272 disposed at the other end thereof. The second elastic member 250 is connected to the second snap end 271, while the other end of the traction member 300 (i.e., the end of the traction member 300 connected to the second locking mechanism 200) is also connected to the second snap end. The second engagement end 272 of the engagement member 270 can be engaged with a second locking groove 260 disposed in the hub frame 641 of the left wheel 64, or can be disengaged from the second locking groove 260 to be unlocked.

[0052] As described above, the first locking mechanism 100 and the second locking mechanism 200 of the present application are interlocked via the pulling member 300. Referring to Figures 3 and 11, when the operating member 110 is pressed down, one end of the pulling member 300 connected to the first locking mechanism 100 moves upward around the rotating end 113 of the operating member 110 as the operating member 110 rotates downward, and the pulling member 300 is released. Meanwhile, the elastic force of the second elastic member 250 of the second locking mechanism 200 pulls down the other end of the pulling member 300 connected to the second locking mechanism, and the engaging member 270 is also pulled down, and the second engaging end 272 of the engaging member 270 engages with the second locking groove 260, and the left wheel 64 and the right wheel 62 are locked simultaneously. 4 and 12 again, when the operating member 110 is lifted upward, the operating member 110 rotates upward around the rotation shaft 132, and correspondingly, one end of the towing member 300 connected to the first locking mechanism 100 can rotate downward around the rotation part 113 of the operating member 110, whereby the towing member 300 is pulled tightly, and accordingly, the other end of the towing member connected to the second locking mechanism 200 is pulled upward, driving the engaging member 270 to move upward, and the second engaging end 272 of the engaging member 270 is unlocked from the second locking groove 260. That is, the left and right wheels 64, 62 are unlocked simultaneously.

[0053] The brake mechanism 10 of the present invention utilizes the elastic cooperation between the operating member 110 and the traction member 300 and the interlocking effect of the traction member to simultaneously brake and unlock the left and right wheels. It has a simple structure, high stability, reduced component wear, and extended durability. Furthermore, it has a smoother anti-false braking function, potentially reducing the risk of false braking.

[0054] Second embodiment A brake mechanism 10' according to a second embodiment of the present invention will be described below. In order to avoid redundancy, the following description will focus on the differences from the first embodiment, and a description of the same parts will be omitted.

[0055] First, reference will be made to Figures 14 and 15. Referring to Figures 14 and 15, Figure 14 is a schematic diagram showing a brake mechanism according to a second embodiment of the present invention, with both the left and right wheels in an unlocked state, and Figure 15 is a schematic diagram showing a brake mechanism according to the second embodiment of the present invention, with both the left and right wheels in a locked state. A brake mechanism 10' in this embodiment includes a first locking mechanism 100', a second locking mechanism 200', and a traction member 300'. Unlike the first embodiment, the first locking mechanism 100' mainly includes a brake operating member 110' for simultaneously locking the right wheel 62 and the left wheel 64 and a first elastic member 150' (the first elastic member 150' is shown in Figures 16 and 17). The second locking mechanism 200' mainly includes an unlocking operation member 210' and a second elastic member 250' (the second elastic member 250' is shown in FIGS. 19 and 20) for simultaneously unlocking the right wheel 62 and the left wheel 64. The first locking mechanism 100' and the second locking mechanism 200' are linked via a traction member 300' to achieve simultaneous locking and unlocking. In this embodiment, the brake operation member 110' and the unlocking operation member 210' may be in the form of a pedal, but are not limited to this. When a supervisor depresses the brake operation member 110' for the right wheel 62, the left wheel 64 and the right wheel 62 are simultaneously locked, as shown in FIG. 15. When the supervisor depresses the unlocking operation member 210' for the left wheel 64, the left wheel 64 and the right wheel 62 are simultaneously unlocked, as shown in FIG. 14. In practice, the brake operating member 110' and the unlocking operating member 210' can be clearly distinguished from each other by painting them in different colors or by providing them with different shapes. The brake operating member 110' and the unlocking operating member 210' in this embodiment may be in the form of a brake pedal and an unlocking pedal, but are not limited to this.

[0056] The structure of a first locking mechanism 100′ according to the second embodiment will be described below with reference to FIGS. 16 and 17. In FIGS. 16 and 17, FIG. 16 is a schematic diagram illustrating the first locking mechanism according to the second embodiment of the present invention, and FIG. 17 is another schematic diagram illustrating the first locking mechanism according to the second embodiment of the present invention. The first locking mechanism 100′ according to this embodiment further includes a first support frame, which includes, for example, a first cover body 120′ and a second cover body 130′ in that order. The first cover body 120′ and the second cover body 130′ are snap-fitted together to form an accommodation space for accommodating the brake operating member 110′. The second cover body 130′ is also provided with a first rotation shaft 132′. The brake operation member 110' in this embodiment further includes a first rotating portion 113' and a first actuating portion 114', respectively disposed at both ends of the brake operation member 110'. The first rotating portion 113' is pivotally attached to the first rotation shaft 132' of the second cover body 130' so that the brake operation member 110' can rotate around the first rotation shaft 132'. The first elastic member 150' is disposed between the first rotating portion 113' and the first cover body 120' of the brake operation member 110'. The brake operation member 110' further includes a first snap end 115' disposed on the first rotating portion 113'. One end of the traction member 300', connected to the first locking mechanism 100', is connected to the first snap end 115'.

[0057] 16 and 17, the brake operating member 110' further includes a first protrusion 117' arranged on the first rotating part 113', and correspondingly, the second cover body 130' further includes a second protrusion 134' arranged about its rotation axis 132'. Preferably, according to the embodiment shown in the drawings, the first protrusion 117' includes two protrusions arranged radially opposite each other around the first rotating part 113', and the second protrusion 134' includes two protrusions arranged radially opposite each other around the first rotation axis 132'. The locked and unlocked states of the brake operating member 110' can be maintained by cooperation of the first and second protrusions 117' and 134'. Specifically, for example, when the brake mechanism 10' is in a locked state, the first protrusion 117' engages with the second protrusion 134' to maintain the locked position, and when the brake mechanism 10' is in an unlocked state, the first protrusion 117' engages with the second protrusion 134' to maintain the unlocked position. The first protrusion 117' and the second protrusion 134' are engaged at different positions to maintain the locked or unlocked position.

[0058] The structure of the first locking mechanism 100′ according to another view of the second embodiment will be described below with reference to FIG. 18, which is a schematic diagram showing the structure of the first locking mechanism according to another view of the second embodiment of the present application. According to the embodiment shown in the drawings, the first locking mechanism 100′ further includes a first engagement groove 160′ disposed on the hub frame 621 of the right wheel 62, and correspondingly, the brake operating member 110′ further includes a first engagement end 116′ disposed on its first rotating portion 113′. When the brake mechanism 10′ is in a locked state, the first engagement end 116′ can engage with the first engagement groove 160′ to realize a braking operation, and when the brake mechanism 10′ is in an unlocked state, the first engagement end 116′ can disengage from the first engagement groove 160′ to realize an unlocking operation.

[0059] The structure of a second locking mechanism 200′ in this second embodiment is shown in Figures 19 and 20. In Figures 19 and 20, Figure 19 is a schematic view showing the second locking mechanism in the second embodiment of the present application, and Figure 20 is another schematic view showing the second locking mechanism in the second embodiment of the present application. The second locking mechanism 200′ in the second embodiment includes a second support frame, which in turn includes a third cover body 220′ and a fourth cover body 230′, which are snap-fitted together to form an accommodation space for accommodating an unlocking operation member 210′ ​​of the second locking mechanism 200′. 20, the fourth cover body 230' is provided with a second rotation shaft 232', and accordingly, the unlocking operation member 210' of the second locking mechanism 200' includes a second rotation part 213' and a second actuation part 214', and the second rotation part 213' rotates corresponding to the second rotation shaft 232', so that the unlocking operation member 210' can rotate around the second rotation shaft 232'. The second elastic member 250' is disposed between the second rotation part 213' and the fourth cover body 230'.

[0060] In this embodiment, the unlocking operation member 210' further includes a second snap end 215' disposed on the second rotating portion 213', and one end of the towing member 300' connected to the second locking mechanism 200' is connected to the second snap end 215'. The second locking mechanism 200' further includes a second locking groove 260' disposed on the hub frame 641 of the left wheel 64, and correspondingly, the unlocking operation member 210' further includes a second engagement end 216' disposed on the second rotating portion 213'. When the second locking mechanism 200' is in the locked state, the second engagement end 216' can be locked in the second locking groove 260', and when the second locking mechanism 200' is in the unlocked state, the second engagement end 216' can be unlocked from the second locking groove 260'.

[0061] 14, 18, and 19, the brake operation member 110' can simultaneously lock the left wheel 64 and the right wheel 62, and the unlock operation member 210' can simultaneously unlock the left wheel 64 and the right wheel 62. Specifically, when the brake operation member 110' of the first locking mechanism 100' is pressed down, the brake operation member 110' is pressed down so as to rotate downward, and therefore the first engagement end 116' of the brake operation member 110' also rotates downward and engages with the first engagement groove 160', thereby locking the right wheel 62. During downward rotation of the brake operation member 110' due to depression, the first protrusion 117' movably abuts against the second protrusion 134', thereby compressing and twisting the first resilient member 150'. That is, as the brake operation member 110' rotates, the first protrusion 117' continuously abuts against and moves relative to the second protrusion 134'. When the top of the first protrusion 117' abuts against the top of the second protrusion 134' (corresponding to the highest part of the first protrusion 117' and in a direction in which the pivot axis X of the brake operation member 110' moves away from the right wheel 62) (corresponding to the highest part of the second protrusion 134' and in a direction in which the pivot axis X of the brake operation member 110' moves toward the right wheel 62), the first resilient member 150' is compressed. Next, as the brake operating member 110' continues to rotate, the top of the first protrusion 117' disengages from the top of the second protrusion 134', the first elastic member 150' returns from the compressed state, and the first protrusion 117' of the brake operating member 110' engages with the second protrusion 134' of the second cover body 130', locking the rear wheel 62 (the first protrusion 117' is shown in FIG. 16, and the pivot axis X is shown in FIG. 18). When the rake operating member 110' rotates downward, one end of the towing member 300' connected to the first locking mechanism 100' also moves downward, and correspondingly, one end of the towing member 300' connected to the second locking mechanism 200' moves upward, so that the second engagement end 216' of the unlocking operating member 210' of the second locking mechanism 200' rotates downward and engages with the second locking groove 260', thereby locking the left wheel 64.At this time, the second elastic member 250' is also compressed and twisted (when the top of the first protrusion 117' abuts against the top of the second protrusion 134', the spring compression force of the first elastic member 150' is greater than the torsional force of the second elastic member 250'). Therefore, by pressing down the lock operating member 110', the left and right wheels 64, 62 can be locked simultaneously.

[0062] When the unlocking operation member 210' of the second locking mechanism 200' is pushed down, the second operating portion 214' of the unlocking operation member 210' rotates downward. At the same time, one end of the towing member 300' connected to the unlocking operation member 210' is also pulled downward as the unlocking operation member 210' is pushed down, and the one end of the towing member 300' connected to the first locking mechanism 100' moves upward. At this time, for the rear wheel 62, the first engagement end 116' of the brake operation member 110' of the first locking mechanism 100' disengages from the first engagement groove 160' as the towing member 300' moves upward, and for the left wheel 64, the second engagement end 216' of the unlocking operation member 210' of the second locking mechanism 200' rotates upward and disengages from the second locking groove 260' as the towing member 300' moves downward. Then, at this time, while the brake operation member 110' is rotated upward by the pulling member 300', the brake operation member 110' is twisted by the first protrusion 117' movably opposing the second protrusion 134' and compressing the first elastic member 150'; in other words, as the brake operation member 110' rotates, the first protrusion 117' continuously opposes the second protrusion 134' and moves relative to it. When the top of the first protrusion 117' (corresponding to the highest part of the first protrusion 117' in the direction away from the right wheel 62 of the pivot axis X of the brake operation member 110') again abuts against the top of the second protrusion 134' (corresponding to the highest part of the second protrusion 134' in the direction toward the right wheel 62 of the pivot axis X of the brake operation member 110'), the first elastic member 150' is compressed. Next, as the brake operating member 110' continues to rotate, the top of the first protrusion 117' comes out of contact with the top of the second protrusion 134', and the first elastic member 150' is released from its compressed state and returns to its original position. At this time, the engagement between the first protrusion 117' of the brake operating member 110' and the second protrusion 134' of the second cover body 130' changes, maintaining the unlocked state and achieving unlocking of the right wheel 62.Similarly, when the unlock operation member 210' rotates downward, the second engagement end 216' of the unlock operation member 210' rotates upward, causing the second elastic member 250' to release its compressive torsional force, and the second engagement end 216' remains disengaged from the second lock groove 260', thereby unlocking the left wheel 64. Therefore, by operating the unlock operation member 210', the left and right wheels 64, 62 can be simultaneously unlocked. In addition, the first elastic member 150' has a greater elastic force than the second elastic member 250', so that the second lock mechanism 200' can be reliably pulled, and only a small force is required to rotate the unlock operation member 210' and the brake operation member 110' to unlock the left wheel 64 and the rear wheel 62.

[0063] The brake mechanism 10' in this embodiment can simultaneously brake and unlock the left and right wheels. It also has a simple structure, high stability, reduced wear on parts, and long durability. Furthermore, the false braking prevention function is smoother, potentially reducing the problem of false braking.

[0064] In the first and second embodiments described above, the towing members 300 and 300' are both integral structures such as complete tow ropes connected between the left wheel 64 and the right wheel 62, and realize the connection between the first locking mechanism 100 and 100' and the second locking mechanism 200 and 200', but are not limited to this. For example, the towing members 300 and 300' may also be in the form of separate pieces.

[0065] The structure of another embodiment of the towing member according to the present application will be described below with reference to FIGS. 21 to 23. The towing member according to the other embodiment can be applied not only to the towing member 300 according to the first embodiment but also to the towing member 300' according to the second embodiment. For ease of explanation, the towing member 300 according to the first embodiment will be described in detail. FIG. 21 is a schematic perspective view showing another embodiment of the towing member according to the present application, in which the cover body 500 is covered by the connecting crossbar 52. FIG. 22 is a schematic perspective view showing another embodiment of the towing member according to the present application, in which the cover body 500 is engaged with the connecting crossbar 52. FIG. 23 is a schematic view showing another embodiment of the towing member, in which the cover body 500 is detached from the connecting crossbar 52 to clearly show the internal structure. FIG. 23 is a partial schematic view showing the connection portion of the towing member.

[0066] The traction member 300 in this embodiment has a separated structure and includes a first traction portion 310 and a second traction portion 320 connected to each other via a connecting member 400, which is provided, for example, on a connecting crossbar 52 connecting the left wheel 64 and the right wheel 62, and which is provided on a receiving portion 523 provided on the connecting crossbar 52 and is covered by a cover body 500. The cover body 500 can be connected to the connecting crossbar 52 through connecting holes, for example, by screws. Although there are two connecting holes shown in FIG. 22, the number of connecting holes can be set as required.

[0067] The detailed structure of the connecting member 400 is shown in Figure 23. The connecting member 400 includes a first opening 410 and a second opening 420, where the first opening 410 has a dimension larger than the first end 312 of the first tow portion 310, and the second opening 420 has a dimension larger than the second end 322 of the second tow portion 320, for receiving the first end 312 of the first tow portion 310 and the second end 322 of the second tow portion 320, respectively. The connecting member 400 further includes a first mounting slot 430 and a second mounting slot 440, where the first mounting slot 430 has a dimension smaller than the dimension of the first opening 410, and the second mounting slot 440 has a dimension smaller than the dimension of the second opening 420. The first mounting slot 430 communicates with the first opening 410, and the second mounting slot 440 communicates with the second opening 420, preventing the first end 312 received in the first opening 410 and the second end 322 received in the second opening 420 from falling out. Note that while the first mounting slot 430 and the second mounting slot 440 shown in FIG. 23 are both L-shaped, they are not limited to this shape.

[0068] In this embodiment, the towing member 300 includes a first towing portion 310 and a second towing portion 320. The first end 312 of the first towing portion 310 passes through a first perforation 521 provided in the connecting crossbar 52 and is then received and clamped in a first opening 410 of the connecting member 400, and the second end 322 of the second towing portion 320 passes through a second perforation 522 provided in the connecting crossbar 52 and is then received and clamped in a second opening 420 of the connecting member 400. In this manner, the first towing portion 310 and the second towing portion 320 of the towing member 300 are connected to each other via the connecting member 400, realizing the connection between the first locking mechanism 100, 100′ and the second locking mechanism 200, 200′. At the same time, the separated form of the towing member makes assembly more convenient.

[0069] It should also be understood that, since the present disclosure can be embodied in various forms without departing from its characteristics, the above-described embodiments should not be limited to the details set forth above, unless otherwise specified, but rather should be broadly construed as being within the scope defined by the appended claims. Accordingly, all modifications and variations that fall within the scope and limits set forth in the claims, or equivalent solutions of such scope and limits, are intended to be covered by the appended claims. [Explanation of symbols]

[0070] 50 frames 52 connection crossbar 521 First Perforation 522 Second Perforation 523 Receiving Department 60 Wheel Assembly 62 Right wheel 621 Right wheel hub frame 64 Left wheel 641 Left wheel hub frame First embodiment 10 Brake mechanism 100 First locking mechanism 110 Operating member 112 Second fixed part 113 Rotating part 114 Operating unit 115 first snap end 116 first engagement end 120 First cover body 121 Stop part 122 first fixed part 130 Second cover body 132 Rotation axis 150 First elastic member 152 first end 154 Second End 160 First lock groove 200 Second locking mechanism 220 Third cover body 230 Fourth cover body 231 Restriction groove 250 Second elastic member 270 Engagement member 271 Second snap end 272 second engagement end 260 Second lock groove 300 Traction member 310 First Towing Section 312 first end portion 320 Second Towing Unit 322 Second end portion 400 connecting member 410 First opening 420 Second Opening 430 First Mounting Slot 440 Second Mounting Slot 500 Cover body 510 Connection hole A Rotation Point F: Elastic force of the first elastic member F' first force component F'' second component force L1 connection line L2 connection line α Angle between connecting line L1 and connecting line L2 X pivot axis Second embodiment 10' Brake mechanism 100' First locking mechanism 110' Brake operating member 115' First snap end 113' First rotating part 114' First working part 116' first engagement end 17' First protrusion 120' First cover body 130' Second cover body 132' First rotation axis 134' Second protrusion 150' First elastic member 160' First engagement groove 200' Second locking mechanism 210' Unlocking operation member 215' Second snap end 216' second engagement end 213' Second rotating section 214' Second working part 220' Third cover body 230' 4th cover body 232' Second rotation axis 250' Second elastic member 260' Second engagement groove 300' towing member

Claims

1. A brake mechanism including a first lock mechanism. the first locking mechanism is used to lock a first wheel; the first locking mechanism includes an operating member and a first elastic member, and locking and unlocking of the first wheel are achieved by cooperation between the operating member and the first elastic member; When the operating member of the first locking mechanism performs a locking operation, the first elastic member provides a pressing force in a locking direction, and when the operating member of the first locking mechanism performs an unlocking operation, the first elastic member provides an unlocking force in an unlocking direction. A brake mechanism characterized by:

2. The operating member includes a rotating portion and an actuating portion provided on both sides of the operating member, and the first locking mechanism includes a first support frame, a rotating shaft is provided on the first support frame, the rotating portion of the operating member is connected to the rotating shaft, and the operating member is rotatable around the rotating shaft.

2. The brake mechanism according to claim 1.

3. The first support frame includes a first cover body and a second cover body, and the first cover body and the second cover body are snap-fitted together to form a space for accommodating the rotating portion of the operating member.

3. The brake mechanism according to claim 2.

4. The first locking structure further includes a first locking groove disposed in a hub frame of the first wheel.

4. The brake mechanism according to claim 2 or 3.

5. The brake mechanism further includes a traction member, and the operating member further includes a first snap end and a first engagement end; One end of the pulling member is connected to the first locking mechanism, surrounds the rotating portion of the operating member, and is connected to the first snap end; The first engagement end is lockable with or unlockable from the first lock groove.

5. The brake mechanism according to claim 4.

6. The first elastic member of the first locking structure is disposed on a side of the first cover body facing the first wheel. The brake mechanism according to any one of claims 3 to 5.

7. The first elastic member includes a first end and a second end that face each other, the first end being connected to a first fixing portion disposed on the first cover body, and the second end being connected to a second fixing portion disposed on the operating member.

7. The brake mechanism according to claim 3, wherein the brake mechanism is a brake mechanism having a first end and a second end.

8. The pressing force is applied to the operating member in a direction different from the direction in which the release force is applied to the operating member. The brake mechanism according to any one of claims 1 to 7.

9. A connecting line connecting the second fixing portion of the operating member and the first fixing portion of the first cover body in a locked state forms an angle with a connecting line connecting the second fixing portion of the operating member and the first fixing portion of the first cover body in an unlocked state.

9. A brake mechanism according to claim 7 or 8.

10. The angle is in the range of 35° to 50°.

10. The brake mechanism according to claim 9.

11. In the locked state, the first elastic member is located below a rotation point of the operating member, and in the unlocked state, the first elastic member is located above the rotation point of the operating member. The brake mechanism according to any one of claims 1 to 10.

12. In the locked state, the elastic force of the first elastic member has a first component force perpendicular to the operating member and a second component force along the operating member in order to reliably press down the operating member. A brake mechanism according to any one of claims 1 to 11.

13. In the unlocked state, the elastic force of the first elastic member has a first component force perpendicular to the operating member and a second component force along the operating member in order to reliably push up the operating member. A brake mechanism according to any one of claims 1 to 12.

14. The first cover body is further provided with a stop portion for preventing the operating member from continuously rotating upward in the unlocked state. A brake mechanism according to any one of claims 1 to 13.

15. a second locking mechanism for locking the second wheel, the second locking mechanism including a second support frame, an engagement member, and a second elastic member; the engagement member is housed within the second support frame; The second elastic member is connected to the engaging member, and the elastic force of the second elastic member puts the second locking mechanism into the locked state. A brake mechanism according to any one of claims 1 to 14.

16. The second support frame includes a third cover body and a fourth cover body, and the third cover body and the fourth cover body are snap-fitted to each other to form an accommodating space for accommodating the engaging member.

16. The brake mechanism of claim 15.

17. The fourth cover body is provided with a limiting groove, and the engaging member is movably disposed within the limiting groove.

17. The brake mechanism of claim 16.

18. The second locking mechanism further includes a second locking groove disposed in the hub frame of the second wheel. A brake mechanism according to any one of claims 15 to 17.

19. The engaging member includes a second snap end disposed at one end and a second engaging end disposed at the other end, the second snap end connecting the second elastic member, one end of the pulling member connected to the second locking mechanism is connected to the second snap end, and the second engaging end can be locked into or unlocked from the locking groove. A brake mechanism according to any one of claims 15 to 18.

20. The locking mechanism further includes a traction member, and both the first locking mechanism and the second locking mechanism are locked and unlocked via the traction member. A brake mechanism according to any one of claims 15 to 19.

21. A brake mechanism including a first locking mechanism, a second locking mechanism, and a traction member, the first locking mechanism includes a brake operating member and a first elastic member for simultaneously locking the first wheel and the second wheel; the second locking mechanism includes an unlocking operation member for simultaneously unlocking the first wheel and the second wheel and a second elastic member, the first elastic member having an elastic force greater than an elastic force of the second elastic member; The first locking mechanism and the second locking mechanism are interlocked via the traction member. A brake mechanism characterized by:

22. The first locking mechanism includes a first support frame, and the first support frame includes a first cover body and a second cover body, and the first cover body and the second cover body are snap-fitted together to form an accommodation space for accommodating the brake operating member.

22. The brake mechanism of claim 21.

23. A first rotation shaft is provided on the second cover body, the brake operating member includes a first rotation portion and a first actuation portion, the first rotation portion rotates on the first rotation shaft, and the first elastic member is disposed between the first rotation portion and the first cover body.

23. The brake mechanism of claim 22.

24. The brake operating member further includes a first snap end disposed on the first rotating portion, and one end of the pulling member connected to the first locking mechanism is connected to the first snap end.

24. The brake mechanism of claim 23.

25. The first locking mechanism further includes a first engagement groove disposed on a hub frame of the first wheel, and the brake operating member further includes a first engagement end portion disposed on the first rotating portion, the first engagement end portion being lockable with the first engagement groove or unlockable from the first engagement groove.

25. A brake mechanism according to claim 23 or 24.

26. The brake operating member further includes a first protrusion disposed on the first rotating portion, and the second cover body further includes a second protrusion, and the locked and unlocked states of the brake operating member are maintained by different fitting methods of the first protrusion and the second protrusion, respectively. A brake mechanism according to any one of claims 23 to 25.

27. The first protrusion includes two protrusions arranged radially opposite to each other around the first rotating part, and the second protrusion includes two protrusions arranged radially opposite to each other around the first rotating shaft.

27. The brake mechanism of claim 26.

28. The second locking mechanism includes a second support frame, and the second support frame includes a third cover body and a fourth cover body, and the third cover body and the fourth cover body are snap-fitted to each other to form an accommodation space for accommodating the unlocking operation member. A brake mechanism according to any one of claims 21 to 27.

29. A second rotation shaft is provided on the fourth cover body, the unlocking operation member includes a second rotation portion and a second actuation portion, the second rotation portion rotates on the second rotation shaft, and the second elastic member is provided between the second rotation portion and the fourth cover body.

29. The brake mechanism of claim 28.

30. The unlocking operation member further includes a second snap end disposed on the second rotating portion, and one end of the pulling member is connected to the second locking mechanism connected to the second snap end.

30. The brake mechanism of claim 29.

31. The second locking mechanism further includes a second engagement groove disposed on a hub frame of the second wheel, and the unlocking operation member further includes a second engagement end portion disposed on the second rotating portion, the second engagement end portion being lockable with the second engagement groove or unlockable from the second engagement groove.

31. A brake mechanism according to claim 29 or 30.

32. The towing member has a separate structure and includes a first towing portion and a second towing portion connected to each other via a connecting member. A brake mechanism according to any one of claims 20 to 31.

33. the connecting member includes a first opening and a second opening and a first mounting slot and a second mounting slot; the first opening and the second opening are adapted to receive a first end portion of the first tow portion and a second end portion of the second tow portion, respectively; The first mounting slot has a dimension smaller than a dimension of the first opening, the second mounting slot has a dimension smaller than a dimension of the second opening, the first mounting slot communicates with the first opening, and the second mounting slot communicates with the second opening.

33. The brake mechanism of claim 32.

34. The connecting member is provided on a connecting crossbar that connects the left wheel and the right wheel.

34. A brake mechanism according to claim 32 or 33.

35. The connecting crossbar is provided with a first perforation, a second perforation, and a receiving portion. the first end portion of the first tow portion extends through the first perforation and the second end portion of the second tow portion extends through the second perforation; The connecting member is received in the receiving portion and covered by the cover body.

35. A brake mechanism according to claim 34.

36. A children's stroller comprising a wheel assembly, a frame and a brake mechanism according to any one of claims 1 to 35, The wheel assembly includes a left wheel and a right wheel, The frame is supported by the wheel assembly. A child stroller characterized by:

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