Sheet-bed combined support body switching mechanism, sheet, and bearing device for a bearing device

Abstract

The present disclosure provides a seat-bed combined support switching mechanism, seat, and bearing device for a bearing device, including a bearing support, in which a rotating holder is rotatably arranged on a fixed holder on both sides of the bearing device, so that the bearing support can be rotatably swung between a seat position and a carrycot position, and a switching assembly for driving a locking member via a drive lever to move away from the fixed holder so that the bearing support rotatably swung, or for driving the locking member by the drive lever to move closer to the fixed holder so that the bearing support is locked after the swung. In this way, a simple structure in which the drive lever is connected to the locking member can drive the locking member to control unlocking or locking of the rotation of the bearing support during switching between the seat mode and the carrycot mode of the bearing support, thereby achieving a simple structure and labor-saving operation.

Description

Technical Field

[0001] The present disclosure relates to a seat-bed combined support switching mechanism for a bearing device, and particularly to a seat-bed combined support switching mechanism, a seat, and a bearing device in which a bearing support can be switched between a seat mode and a carrycot mode.

Background Art

[0002] A stroller for infants is mainly known to have a frame and a carrier disposed on the frame. An adult can place an infant in the carrier and push the frame to move around conveniently. The carrier may be a carrycot for the infant to lie down or a seat for the infant to sit.

[0003] In order to make infants and children feel more comfortable, many strollers have a seat designed to have a backrest that can be fully reclined so that the infant can lie flat in the seat. However, the existing structure for laying the backrest flat is more complicated to implement and the operation is quite inconvenient. Also, in the process of reclining the backrest of the existing seat, due to the change in the center of gravity, it is easy to fall over and damage the safety of the infant.

Summary of the Invention

Problems to be Solved by the Invention

[0004] In view of the above existing technologies, a seat-bed combined support switching mechanism, a seat, and a bearing device for a bearing device are developed, whereby a switching mechanism for switching between a seat mode and a carrycot mode is provided in the bearing device, and simplification of the structure and labor saving of the work can be achieved.

Means for Solving the Problems

[0005] To achieve the above object, the present disclosure provides a seat-bed combined support switching mechanism for a bearing device, the bearing device includes a main frame body, and the support switching mechanism includes two fixed holders, a bearing support, and a switching assembly, and the switching assembly includes a locking member and a driving lever.

[0006] The two fixed holders are respectively fixed on both sides of the main frame body, and at least one of the fixed holders has a seat mode positioning portion and a carrycot mode positioning portion that are separated by an angle on the fixed holder.

[0007] Rotating holders corresponding to the respective fixed holders are provided on both sides of the bearing support, each rotating holder is rotatably arranged on its corresponding fixed holder, and the bearing support is configured to be rotatably swung between a seat position and a carrycot position as the rotating holder rotates.

[0008] The locking member is connected to the driving lever so as to be arranged on at least one of the rotating holders. When the driving lever is pulled by an external force, the locking member is driven to move away from its corresponding fixed holder, whereby the bearing support is unlocked and can be rotatably swung between the seat position and the carrycot position. Also, after the external force disappears, the locking member is driven to move toward its corresponding fixed holder and engages with one of the seat mode positioning portion and the carrycot mode positioning portion, thereby locking the bearing support.

[0009] In a preferred embodiment, the locking member includes an operating portion and an engaging portion extending laterally from one end of the operating portion. Each of the seat mode positioning portion and the carrycot mode positioning portion is a positioning groove. When the engaging portion is inserted into one of the seat mode positioning portion and the carrycot mode positioning portion, the locking member is engaged and locked.

[0010] In a preferred embodiment, the drive lever has a force application end and a force resistance end spaced apart from each other, and a shaft coupling portion that is shaft-coupled to a rotation holder disposed between the force application end and the force resistance end and around which the drive lever is disposed. The switching assembly includes a traction member connected to the force application end, and the force resistance end is rotatably and swingably connected to the operating portion. Thereby, while the force resistance end pulls the operating portion to move the locking member, the traction member swings the drive lever around the axis of the shaft coupling portion.

[0011] In a preferred embodiment, the switching assembly includes a reset member extending along the moving direction of the locking member such that one end abuts against one end of the operating portion away from the engaging portion and the other end abuts against the rotation holder. When the drive lever is driven to move the locking member until the locking of the bearing support is released, the operating portion applies pressure to the reset member to generate a reset elastic force, and the locking member is reset by the reset elastic force to such an extent that the bearing support is locked when the drive lever stops driving.

[0012] In a preferred embodiment, the reset member is a compression spring, and a boss for the reset member to be sleeved is provided at one end of the operating portion away from the engaging portion.

[0013] In a preferred embodiment, the operating portion is provided with a rod portion extending from the same side as the engaging portion, and the drive lever is provided with a receiving hole into which the rod portion is inserted at the force resistance end so as to be rotatably and swingably connected to the operating portion.

[0014] In a preferred embodiment, the shaft coupling portion is a shaft hole, the rotation holder on which the drive lever is disposed has a rotation shaft, the rotation shaft is disposed corresponding to the shaft coupling portion, and the drive lever is shaft-coupled to the rotation holder by the shaft coupling portion being inserted through the rotation shaft.

[0015] In a preferred embodiment, the switching assembly includes an operable operating member disposed on a bearing support, the traction member is a cable, and one end of the cable is connected to a force application end and the other end is connected to the operating member to pull the operating member to drive the force application end via the traction member and to connect to an actuating part via a force resistance end to move a locking member.

[0016] In a preferred embodiment, the operating member includes a tension part and two sliders. The tension part is rotatably disposed on the bearing support and has two guide rail parts arranged to be inclined. The two sliders are disposed on the bearing support, each slider has a guide channel engaging with a corresponding guide rail part and a joint connecting to one end of the traction member. The two sliders approach each other by being guided by the two guide rail parts when the tension part is pulled so as to be connected to the traction member to drive the force application end.

[0017] In a preferred embodiment, the locking member further includes an extending part and a blocking part. The extending part extends away from the actuating part at one end of the engaging part, the extending part and the actuating part extend in opposite directions. The blocking part is formed in a hook shape at one end of the extending part away from the engaging part. An opening is provided in the side wall of the rotating holder, and the rotating holder has an elastic arm. The elastic arm extends from the side wall within the opening and has a convex part protruding laterally from the side wall at its end. When the locking member is locked by being engaged with one of a seat mode positioning part and a carry cot mode positioning part, the opening is aligned with the position of the extending part and the convex part is pressed, whereby the elastic arm inclines from the opening towards the extending part to block the blocking part and regulate the detachment of the locking member from the bearing support.

[0018] In a preferred embodiment, each of the fixed holders has a first side surface, each of the rotating holders has a second side surface, and when each of the rotating holders is rotatably disposed on its corresponding fixed holder, the first side surface faces the second side surface. Among the first side surface and the second side surface, one has a convex limiting portion, and the other has a concave groove portion corresponding to the limiting portion. The groove portion is arc-shaped and has a predetermined arc length. The limiting portion limits the rotatable angle of the rotating holder by taking a predetermined arc length as the movable stroke in the groove portion.

[0019] In a preferred embodiment, the aforesaid the angle is within the range of 30 degrees to 45 degrees.

[0020] In a preferred embodiment, a canopy frame is provided on the bearing support.

[0021] In a preferred embodiment, the bearing support is connected to the accessory when the rotating holders on both sides are in the seat position.

[0022] In a preferred embodiment, the accessory is a plate or a handrail.

[0023] In other embodiments of the present disclosure, a seat is provided that includes a bearing support, two fixed holders, and a switching assembly. At least one of the fixed holders has a seat mode positioning portion and a carry cot mode positioning portion that are spaced apart by an angle on the fixed holder. The bearing support is provided with rotating holders corresponding to each of the fixed holders on both sides. The rotating holders are rotatably disposed on the corresponding fixed holders, and the bearing support is configured to swing rotatably between a seat position and a carry cot position when the rotating holders rotate. The switching assembly includes a locking member connected to a drive lever so as to be disposed on at least one of the rotating holders. When the drive lever is pulled by an external force, the locking member is driven to move away from its corresponding fixed holder, whereby the bearing support is unlocked and can swing rotatably between the seat position and the carry cot position. After the external force disappears, the locking member is driven to move toward its corresponding fixed holder and engage with one of the seat mode positioning portion and the carry cot mode positioning portion, whereby the bearing support is locked.

[0024] In another embodiment of the present disclosure, the bearing device is provided with the aforementioned seat.

Advantages of the Invention

[0025] Thus, according to the seat-bed dual-purpose support switching mechanism, seat, and bearing device for the bearing device according to the present disclosure, by means of a simple structure in which the locking member is connected to the drive lever, when the drive lever drives the locking member to move, the switching and locking of the bearing support are completed when switching between the seat mode and the carry cot mode, and a simple structure and labor-saving operation for switching and locking the bearing support between the seat mode and the carry cot mode are realized.

Brief Description of the Drawings

[0026] To more clearly explain the technical solutions in the embodiments of the present disclosure or the prior art, the accompanying drawings used in the description of the embodiments are briefly introduced below. The accompanying drawings in the following description are only some embodiments of the present disclosure, and it is obvious that other drawings can be obtained by those skilled in the art from the drawings provided without any creative effort.

[0027]

Figure 1

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Figure 2

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Figure 3

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Figure 4

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Figure 5

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Figure 6

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Figure 7

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Figure 8

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Figure 9

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Figure 10

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Figure 11

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Figure 12

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Figure 13

Explanation of Signs

[0040] 100 Support switching mechanism 10 Fixed holder 11 Seat mode positioning portion 12 Carry cot mode positioning portion 13 First side surface 14 Restricting portion 20 Bearing support 21 Rotating holder 211 Rotating shaft 212 Side wall 213 Opening 214 Elastic arm 215 Protrusion 216 Second side surface 217 Groove part 22 Canopy frame 23 Accessories 30 Switching assembly 40 Locking member 41 Actuating part 411 Boss 412 Rod part 42 Engaging part 43 Extending part 44 Blocking part 50 Driving lever 51 Force application end 52 Force resistance end 521 Receiving hole 53 Shaft coupling part 60 Operating member 61 Tensile part 611 Guide rail part 62 Slider 621 Guide channel 70 Towing member 80 Reset member 200 Main frame body 201 Handrail P1 Seat position P2 Carry cot position P3 Locking position P4 Unlocking position A Side wall surface

Modes for Carrying Out the Invention

[0041] Referring to FIGS. 1 to 13, the present disclosure provides a seat-bed dual-purpose support switching mechanism 100 for a bearing device. Here, the bearing device is, for example, a stroller for carrying or pushing a baby, and includes a main frame body 200. The support switching mechanism 100 is disposed on the main frame body 200. The support switching mechanism 100 switches between a seat mode (shown in FIG. 1) and a carrycot mode (shown in FIG. 2) so that an infant can sit in a seated position in the seat mode and can lie flat in a lying-down position in the carrycot mode. It may be in the form of a seat to be attached to the main frame body 200 of the bearing device of this embodiment.

[0042] The support switching mechanism 100 includes two fixed holders 10, a bearing support 20, and a switching assembly 30.

[0043] As shown in FIGS. 1 and 2, the two fixed holders 10 are respectively fixed to both sides of the main frame body 200. In the present embodiment, each of the two fixed holders 10 has a seat mode positioning portion 11 and a carrycot mode positioning portion 12, and the seat mode positioning portion 11 and the carrycot mode positioning portion 12 are separated by an angle on the fixed holder 10 (shown in FIG. 3).

[0044] As shown in FIGS. 1 and 2, on both sides of the bearing support 20, there are provided rotary holders 21 corresponding to the fixed holders 10. The rotary holders 21 are rotatably arranged on their corresponding fixed holders 10. The bearing support 20 is configured to swing pivotally between a seat position P1 (shown in FIG. 1) and a carrycot position P2 (shown in FIG. 2) as the rotary holders 21 rotate. A seat cover (not shown) may be provided on the bearing support 20. The seat cover enables a baby to sit in a sitting position when the bearing support 20 is at the seat position P1, and enables the baby to lie flat in a lying-down position when the bearing support 20 is at the carrycot position P2. Therefore, when the bearing support 20 swings pivotally to the seat position P1 and is locked, it enters the seat mode. Also, when the bearing support 20 swings pivotally to the carrycot position P2 and is locked, it enters the carrycot mode. As shown in FIGS. 1 and 2, a canopy frame 22 is provided on the bearing support 20 of this embodiment. On the rotary holders 21 on both sides of the bearing support 20, accessories 23 such as a dinner plate or a handrail can be provided, especially when the bearing support 20 is at the seat position P1.

[0045] In this embodiment, the switching assembly 30 is provided with locking members 40 respectively connected to the drive levers 50 of the respective rotary holders 21 (shown in FIG. 4). When the drive lever 50 is pulled by an external force, the drive lever 50 drives the locking member 40 to move away from its corresponding fixed holder 10, thereby unlocking the bearing support 20. The bearing support 20 can then swing pivotally between the seat position P1 and the carrycot position P2. After the external force disappears, the locking member 40 is driven to move towards its corresponding fixed holder 10 and engage with one of the seat mode positioning portion 11 and the carrycot mode positioning portion 12, thereby locking the bearing support 20. In this case, the bearing support 20 cannot swing pivotally between the seat position P1 and the carrycot position P2.

[0046] Specifically, referring to FIGS. 9 to 12, the lock member 40 can linearly move between a lock position P3 and an unlock position P4 by driving of the drive lever 50. When the bearing support 20 swings pivotally to the seat position P1, the lock member 40 can be aligned with the seat mode positioning portion 11, and the drive lever 50 drives the lock member 40 to move to the lock position P3 so as to be engaged with and locked by the seat mode positioning portion 11. Alternatively, when the bearing support 20 swings pivotally to the carry cot position P2, the lock member 40 can be aligned with the carry cot mode positioning portion 12, and the drive lever 50 drives the lock member 40 to move to the lock position P3 so as to be engaged with and locked by the carry cot mode positioning portion 12. Further, when the drive lever 50 drives the lock member 40 to move to the unlock position P4, the lock member 40 disengages from one of the seat mode positioning portion 11 and the carry cot mode positioning portion 12, whereby the bearing support 20 can swing pivotally between the seat position P1 and the carry cot position P2.

[0047] In the above embodiment, both of the two fixed holders 10 have the seat mode positioning portion 11 and the carry cot mode positioning portion 12, and the lock member 40 and the drive lever 50 are respectively provided on the rotary holder 21. Thereby, the lock member 40 can be engaged with and locked by one of the seat mode positioning portion 11 and the carry cot mode positioning portion 12 between the two fixed holders 10 and the two corresponding rotary holders 21. However, the present disclosure is not limited thereto. For example, only the fixed holder 10 has the seat mode positioning portion 11 and the carry cot mode positioning portion 12, and the lock member 40 corresponding to the fixed holder 10 and the drive lever 50 are provided on the rotary holder 21. Thereby, the effect that the lock member 40 is engaged with and locked by one of the seat mode positioning portion 11 and the carry cot mode positioning portion 12 can also be obtained.

[0048] In a preferred embodiment, as shown in FIG. 3, the fixed holder 10 is integrally formed, and each of the seat mode positioning portion 11 and the carrycot mode positioning portion 12 is a positioning groove formed recessed from the fixed holder 10. As shown in FIG. 4, the lock member 40 of the present embodiment includes an operating portion 41 and an engaging portion 42, and the engaging portion 42 extends laterally from one end of the operating portion 41. When the lock member 40 is aligned with the seat mode positioning portion 11 and moves to the lock position P3, the engaging portion 42 is inserted into the seat mode positioning portion 11 for locking and latching (shown in FIG. 10). In this case, the bearing support 20 is located at the seat position P1 and is in the seat mode. Also, when the lock member 40 is aligned with the carrycot mode positioning portion 12 and moves to the lock position P3, the engaging portion 42 is inserted into the carrycot mode positioning portion 12 for locking and latching (shown in FIG. 13). In this case, the bearing support 20 is located at the carrycot position P2 and is in the carrycot mode.

[0049] As shown in FIG. 4, the drive lever 50 has a force application end 51 and a force resistance end 52 that are separated from each other, and a shaft coupling portion 53 that is shaft-coupled to a rotary holder 21 disposed between the force application end 51 and the force resistance end 52 and where the drive lever 50 is disposed. Preferably, the shaft coupling portion 53 in this embodiment is a shaft hole, and the rotary holder 21 where the drive lever 50 is disposed has a rotation shaft 211 (shown in FIGS. 10 to 13) disposed corresponding to the shaft coupling portion 53, and the drive lever 50 is inserted by the rotation shaft 211 at the shaft coupling portion 53 so that the drive lever 50 can be shaft-coupled to the rotary holder 21 where the drive lever 50 is disposed.

[0050] As shown in FIGS. 5 and 6, the switching assembly 30 includes an operable operating member 60 and a traction member 70. The operating member 60 is disposed on the bearing support 20 and, in this embodiment, is approximately located at the handrail 201 of the main frame body 200. The traction member 70 is a cable in this embodiment, one end of which is connected to the force application end 51 and the other end of which is connected to the operating member 60. The force resistance end 52 is rotatably and swingably connected to the operating portion 41. When the operating member 60 is pulled, the force application end 51 is driven via the traction member 70, causing the drive lever 50 to swing around the axis of the shaft coupling portion 53. On the other hand, the locking member 40 is driven to move between the locking position P3 and the unlocking position P4 via the force resistance end 52 that is connected to the operating portion 41.

[0051] As shown in FIG. 6, in this embodiment, the operating member 60 further includes a tension portion 61 and two sliders 62. The tension portion 61 is rotatably disposed on the bearing support 20 and is tensionable. The tension portion 61 has two guide rail portions 611. The two guide rail portions 611 are disposed obliquely. The two sliders 62 are disposed on the bearing support 20 and each has a guide channel 621 that engages with the guide portion 611. Each slider 62 has a joint (not shown) that connects to one end of the traction member 70. When the tension portion 61 is pulled, the two sliders 62 are guided by the two guide rail portions 611 to approach each other, connecting the traction member 70 and driving the force application end 51 connected to the other end of the traction member 70.

[0052] As shown in FIG. 4, the switching assembly 30 further includes a reset member 80. The reset member 80 extends along the moving direction of the locking member 40. One end of the reset member 80 abuts against one end of the operating portion 41 that is away from the engaging portion 42, and the other end abuts against the inner side wall of the rotary holder 21 (shown in FIGS. 10 to 13). When the drive lever 50 drives the locking member 40 to move to the unlocking position P4, the operating portion 41 applies pressure to the reset member 80 to generate a reset elastic force. When the drive of the drive lever 50 stops, the locking member 40 can be reset to the locking position P3 by the reset elastic force.

[0053] The above-described reset member 80 is a compression spring, and a boss 411 is provided at one end of the operating portion 41 away from the engaging portion 42. The boss 411 is provided for the reset member 80 to be attached in a sleeve shape, whereby the reset member 80 cannot easily slide off and escape from the operating portion 41 with which it abuts. Further, a rod portion 412 is provided on the operating portion 41, the rod portion 412 extends from the same side as the engaging portion 42, and a receiving hole 521 is provided in the force resistance end 52 of the drive lever 50. The drive lever 50 may be rotatably and swingably connected to the operating portion 41 through the receiving hole 521 into which the rod portion 412 is inserted.

[0054] As shown in FIG. 4, the lock member 40 further includes an extending portion 43 and a blocking portion 44. The extending portion 43 extends from one end of the engaging portion 42 away from the operating portion 41, and the extending portion 43 and the operating portion 41 extend in opposite directions. The blocking portion 44 is formed in a hook shape at one end of the extending portion 43 away from the engaging portion 42. As shown in FIG. 7, the rotating holder 21 is provided with an opening 213 in the side wall 212, and the rotating holder 21 has an elastic arm 214 extending from the side wall 212 at the opening 213. The elastic arm 214 has a convex portion 215 at its end. The convex portion 215 protrudes laterally with respect to the side wall 212. When the lock member 40 is in the locked position P3 and is engaged and locked with one of the seat mode positioning portion 11 and the carrycot mode positioning portion 12, the opening 213 is aligned with the position of the extending portion 43, and the convex portion 215 is pressed, whereby the elastic arm 214 inclines from the opening 213 toward the extending portion 43 to block the blocking portion 44 and regulate the detachment of the lock member 40 from the locked position P3. For example, in the seat mode (shown in FIG. 1), the vehicle seat (not shown) may be fixed to the bearing support 20. The vehicle seat presses a convex portion corresponding to the side wall surface A at the position where the convex portion 215 (shown in FIG. 8) is located. In this case, the elastic arm 214 blocks the blocking portion 44, and the bearing support 20 is locked at the seat position P1. At this time, after pressing the vehicle seat against the bearing support 20, the blocking portion 44 can be prevented from coming out of the locked position P3, so that the vehicle seat cannot be adjusted from the seat position P1 to the carrycot position P2 after pressing the vehicle seat. In this way, the backflip of the vehicle seat caused by an incorrect use angle can be prevented, and as a result, the safety of the vehicle seat regarding use can be guaranteed. That is, the vehicle seat can be engaged only at the seat position P1. Therefore, when the user intends to change the bearing support 20 from the seat position P1 to the carrycot position P2, the vehicle seat must be removed. After the vehicle seat or the side wall surface A is removed, there is no force pressing the convex portion 215, and the elastic arm 214 returns to its initial position and does not block the blocking portion 44. In this case, axial rotation of the bearing support 20 to the carrycot position P2 is permitted.

[0055] As shown in FIG. 3, the fixed holder 10 has a first side surface 13, and the rotating holder 21 has a second side surface 216. The first side surface 13 faces the second side surface 216 when the rotating holder 21 is rotatably arranged on the fixed holder 10. As shown in FIGS. 3 and 9, the fixed holder 10 has two convex limiting portions 14 on the first side surface 13, and the rotating holder 21 has a concave groove portion 217 corresponding to the limiting portion 14 on the second side surface 216. The groove portion 217 is arc-shaped and has a predetermined arc length. The limiting portion 14 limits the rotatable angle of the rotating holder 21 by taking a predetermined arc length as the movable stroke in the groove portion 217. This The angle is 30 degrees to 45 degrees, preferably 42.5 degrees in this embodiment, but is not limited to that angle.

[0056] In actual operation, when the bearing support 20 is at the seat position P1 on the main frame body 200 and is in the seat mode (shown in FIG. 1), if the bearing support 20 can be switched to the carry cot position P2, the user can pull the operating member 60 to connect it to the drive lever 50 via the traction member 70, drive the locking member 40 to move from the locked position P3 to the unlocked position P4 (shown in FIGS. 10 and 11), thereby disengaging the locking member 40 from the seat mode positioning portion 11 and rotating the bearing support 20 to the carry cot position P2 (shown in FIG. 12), and thus can enter the carry cot mode. In this case, the pulling of the operating member 60 is released, and the locking member 40 is reset to the locked position P3 by the reset elastic force of the reset member 80 and engages with the carry cot mode positioning portion 12 (shown in FIG. 13) to be locked. The bearing support 20 is locked at the carry cot position P2, and the convex portion 215 is on the vehicle carrycot or the side wall surface A pressed, causing the elastic arm 214 to tilt toward the extension portion 43 to block the blocking portion 44 (shown in FIG. 8), restricting the locking member 40 from disengaging from the locked position P3. and the vehicle carrycot after being protruded becomes non-adjustable from the carrycot position P2 to the seat position P1. When switching the bearing support 20 from the carry cot mode to the seat mode, Similarly, the vehicle carrycot must be removed. After the vehicle carrycot or the side wall surface A is assisted, there is no force pressing the convex portion 215, the elastic arm 214 returns to its initial position, and does not block the blocking portion 44. Also, axial rotation of the bearing support 20 to the seat position P1 may be permitted. the difference from the above operation mode is that the locking member 40 is carrycotPositioning section 12 After being disengaged from 12 , the bearing support 20 swings back from the carry cot position P2 to the seat position P1 only at this point, and the remaining operations are the same. Therefore, the details are omitted here.

[0057] From the above description, it is clear to find the following features of the present disclosure.

[0058] 1. In the seat-bed dual-purpose support switching mechanism 100 of the bearing device according to the present disclosure, the lock member 40 is connected to the drive lever 50, and by the seesaw operation of the drive lever 50, the lock member 40 can be driven to move between the lock position P3 and the unlock position P4 with less effort. With a simple structure, the switching and locking of the bearing support 20 between the seat mode and the carry cot mode can be obtained, and as a result, a simple structure and labor-saving operation are achieved.

[0059] 2. When the bearing device according to the present disclosure is engaged with the vehicle seat, the bearing support 20 can be engaged with the vehicle seat only when it is in the seat position P1. When engaged with the vehicle seat, the elastic arm 214 can block the blocking portion 44, thereby restricting the detachment of the lock member 40 from the lock position P3. Therefore, the backflip of the vehicle seat caused by an incorrect use angle can be prevented, and the safety of the vehicle seat in use can be ensured.

[0060] 3. In the seat-bed dual-purpose support switching mechanism 100 for the bearing device according to the present disclosure, the switching assembly 30 further includes an operating member 60 on the bearing support 20 and is connected to the drive lever 50 via a traction member 70, whereby the operating member 60 can be arranged at a position convenient for the user to operate (for example, at the handrail 201 of the main frame body 200 as shown in FIGS. 1 and 2), and the movement of the lock member 40 can be remotely operated to achieve the convenience of remote operation.

Claims

1. A support switching mechanism (100) for a bearing device, wherein the bearing device includes a main frame body (200), and the support switching mechanism (100) includes: Two fixed holders (10) respectively fixed to both sides of the main frame body (200), and at least one of the fixed holders (10) has a seat mode positioning portion (11) and a carry cot mode positioning portion (12) spaced apart by an angle on the fixed holder (10). Two fixed holders (10); A bearing support (20) provided with rotating holders (21) corresponding to the respective fixed holders (10) on both sides, each of the rotating holders (21) being rotatably arranged on its corresponding fixed holder (10), and the bearing support (20) being configured to swing rotatably between a seat position (P1) and a carry cot position (P2) when the rotating holder (21) rotates. A bearing support (20); A switching assembly (30) disposed on at least one of the rotating holders (21) and having a lock member (40) connected to the drive lever (50) so as to be disposed on at least one of the rotating holders (21); Comprising: The drive lever (50) is shaft-coupled to the rotating holder (21) on which the drive lever (50) is disposed so that the drive lever (50) can swing; The drive lever (50) is connected to the lock member (40), and the lock member (40) is driven to move by the swing of the drive lever (50) so as to disengage or engage with one of the seat mode positioning portion (11) and the carry cot mode positioning portion (12); When the drive lever (50) is pulled by an external force, the lock member (40) is driven to move away from its corresponding fixed holder (10), whereby the bearing support (20) is unlocked and can swing rotatably between the seat position (P1) and the carry cot position (P2); After the external force disappears, the locking member (40) is driven to move toward its corresponding fixed holder (10) to engage with one of the seat mode positioning portion (11) and the carrycot mode positioning portion (12), whereby the bearing support (20) is locked. A support switching mechanism (100). Claim 2 The locking member (40) includes an operating portion (41) and an engaging portion (42) extending laterally from one end of the operating portion (41). Each of the seat mode positioning portion (11) and the carrycot mode positioning portion (12) is a positioning groove, and when the engaging portion is inserted into one of the seat mode positioning portion (11) and the carrycot mode positioning portion (12), the locking member (40) is engaged and locked. A support switching mechanism (100) for the bearing device according to claim 1. Claim 3 The drive lever (50) has a force application end (51) and a force resistance end (52) that are separated from each other, and a shaft coupling portion (53) that is shaft-coupled to the rotary holder (21) where the drive lever (50) is disposed between the force application end (51) and the force resistance end (52). The switching assembly (30) includes a traction member (70) connected to the force application end (51), and the force resistance end (52) is rotatably and swingably connected to the operating portion (51), whereby the traction member (70) swings the drive lever (50) around the axis of the shaft coupling portion (53) while the force resistance end (52) pulls the operating portion (41) to move the locking member (40). A support switching mechanism (100) for the bearing device according to claim 2. Claim 4 The switching assembly (30) includes a reset member (80) extending along the moving direction of the locking member (40) such that one end thereof abuts against one end of the actuating portion (41) away from the engaging portion (42) and the other end abuts against the rotating holder (21). When the driving lever (50) is driven to move the locking member (40) until the locking of the bearing support (20) is released, the actuating portion (41) applies pressure to the reset member (80) to generate a reset elastic force. The locking member (40) is reset by the reset elastic force to such an extent that the bearing support (20) is locked when the driving lever (50) stops driving. A support switching mechanism (100) for a bearing device according to claim 3.

5. The reset member (80) is a compression spring, and a boss (411) for the reset member (80) to be sleeved is provided at one end of the actuating portion (41) away from the engaging portion (42). A support switching mechanism (100) for a bearing device according to claim 4.

6. The actuating portion (41) is provided with a rod portion (412) extending from the same side as the engaging portion (42), and the driving lever (50) is provided with a receiving hole (521) at the force resistance end (52) for the rod portion (412) to be rotatably and swingably connected to the actuating portion (41). A support switching mechanism (100) for a bearing device according to claim 4.

7. The shaft coupling portion (53) is a shaft hole, the rotating holder (21) where the driving lever (50) is disposed has a rotating shaft (211) disposed corresponding to the shaft coupling portion (53), and the driving lever (50) is shaft-coupled to the rotating holder (21) through the shaft coupling portion (53) through which the rotating shaft (211) passes. A support switching mechanism (100) for a bearing device according to claim 3.

8. The switching assembly (30) includes an operable operating member (60) disposed on the bearing support (20), the traction member (70) is a cable, and the cable pulls the operating member (60) to drive the force application end (51) via the traction member (70), and is connected to the actuating portion (41) via the force resistance end (52) to move the locking member (40). One end is connected to the force application end (51) and the other end is connected to the operating member (60). The support switching mechanism (100) for a bearing device according to claim 3.

9. The operating member (60) includes a tension portion (61) and two sliders (62). The tension portion (61) is rotatably disposed on the bearing support (20) and has two guide rail portions (611) disposed to be inclined. The two sliders (62) are disposed on the bearing support (20). Each of the sliders (62) has a guide channel (621) engaged with a corresponding guide rail portion (611) and has a joint connected to one end of the traction member (70). The two sliders (62) are guided by the two guide rail portions (611) to approach each other when the tension portion (61) is pulled so as to be connected to the traction member (70) to drive the force application end (51). The support switching mechanism (100) for a bearing device according to claim 8.

10. The locking member (40) further includes an extending portion (43) and a blocking portion (44). The extending portion (43) extends away from the actuating portion (41) at one end of the engaging portion (42). The extending portion (43) and the actuating portion (41) extend in opposite directions. The blocking portion (44) is formed in a hook shape at one end of the extending portion (43) away from the engaging portion (42). The rotating holder (21) is provided with an opening (213) in a side wall (212), the rotating holder (21) has an elastic arm (214), the elastic arm (214) extends from the side wall (212) within the opening (213), and has a convex portion (215) protruding laterally from the side wall (212) at its end. When the locking member (40) is locked by one of the seat mode positioning portion (11) and the carrycot mode positioning portion (12), the opening (213) is aligned with the position of the extending portion (43), and the convex portion (215) is pressed, whereby the elastic arm (214) inclines from the opening (213) toward the extending portion (43) to block the blocking portion (44) and regulate the detachment of the locking member (40) from the bearing support (20). The support switching mechanism (100) for a bearing device according to claim 2.

11. Each of the fixed holders (10) has a first side surface (13), each of the rotating holders (21) has a second side surface (216), and the first side surface (13) faces the second side surface (216) when each of the rotating holders (21) is rotatably arranged on its corresponding fixed holder (10). Of the first side surface (13) and the second side surface (216), one has a convex limiting portion (14), and the other has a concave groove portion (217) corresponding to the limiting portion (14). The groove portion (217) is arc-shaped and has a predetermined arc length. The limiting portion (14) takes the predetermined arc length as a movable stroke in the groove portion (217) to limit the rotatable angle of the rotating holder (21). The support switching mechanism (100) for a bearing device according to claim 1.

12. The support switching mechanism (100) for a bearing device according to claim 11, wherein the angle is within the range of 30 degrees to 45 degrees.

13. A canopy frame (22) is provided on the bearing support (20). The support switching mechanism (100) for a bearing device according to claim 1.

14. The rotation holders (21) on both sides of the bearing support (20) are a support switching mechanism (100) for the bearing device according to claim 1, which are connected to the accessory (23) at the seat position (P1).

15. The accessory (23) is a dinner plate or a handrail, and the support switching mechanism (100) for the bearing device according to claim 14.

16. A seat comprising a bearing support (20), two fixed holders (10), and a switching assembly (23), At least one of the fixed holders (10) has a seat mode positioning portion (11) and a carrycot mode positioning portion (12) spaced apart by an angle on the fixed holder (10), The bearing support (20) is provided with rotation holders (21) corresponding to each of the fixed holders (10) on both sides, the rotation holders (21) are rotatably arranged on their corresponding fixed holders (10), and when the rotation holders (21) rotate, the bearing support (20) is configured to swing rotatably between a seat position and a carrycot position, The switching assembly (30) is arranged on at least one of the rotation holders (21) and includes a drive lever (50) and a lock member (40) connected to the drive lever (50), The drive lever (50) is shaft-coupled to the rotation holder (21) on which the drive lever (50) is arranged so that the drive lever (50) can swing, The drive lever (50) is connected to the lock member (40), and the lock member (40) is drivable to move by the swing of the drive lever (50) so as to disengage or engage with one of the seat mode positioning portion (11) and the carrycot mode positioning portion (12), When the drive lever (50) is pulled by an external force, the lock member (40) is driven to move away from its corresponding fixed holder (10), whereby the bearing support (20) is unlocked and can pivot and swing between the seat position (P1) and the carry cot position (P2). After the external force disappears, the lock member (40) is driven to move toward its corresponding fixed holder (10) and engage with one of the seat mode positioning portion (11) and the carry cot mode positioning portion (12), whereby the bearing support (20) is locked. Seat.

17. A bearing device, comprising the seat according to claim 16 or the support switching mechanism (100) according to any one of claims 1 to 15.

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