Auto-rotation mechanisms, side impact protection devices, and child seats

Abstract

Providing automatic rotation mechanisms, side impact protection devices, and child seats. [Solution] The auto-rotation mechanism of the present application controls relative movement between a first object and a second object, the auto-rotation mechanism including a locking mechanism, a driving mechanism, and an operating mechanism, the locking mechanism being disposed on the first object and switchable between a locked position for preventing the relative movement and an unlocked position for allowing the relative movement, the driving mechanism being disposed on the second object and operable to switch the locking mechanism from the locked position to the unlocked position, and the operating mechanism being disposed on a third object and operable to operate the driving mechanism when the third object moves relative to a fourth object. Also provided are a side impact protection device and a child seat.

Description

[Technical field]

[0001] The present disclosure relates to an automatic rotation mechanism, a side impact protection device including the automatic rotation mechanism, and a child seat including the side impact protection device. [Background technology]

[0002] A child car seat is a device that is attached to a car seat. In the event of emergency braking or an unexpected collision of a car, the safety seat reduces the impact on the child and limits the child's physical movement, thereby reducing the damage the child may suffer in an accident and ensuring the safety of the child during the journey.

[0003] Some safety seats provide a side impact protection device to reduce the side impact the seat receives. The side impact protection device is a side flap extending from the two outside of the seat, and has a folded position and an unfolded position. In the folded position, the side impact protection device is attached to the outside of the seat, reducing the occupied space, and in the unfolded position, the side impact protection device protrudes outward from the side of the seat, providing a buffer between the seat and the car.

[0004] In some applications of child car seats, the seat can rotate back and forth relative to the base. When the seat rotates, the protruding side impact protection block may interfere with the top rod installed on the base, making it impossible to rotate the seat directly forward or backward. Before rotating the seat, the side impact protection block needs to be manually folded, which affects the convenience of use. Summary of the Invention [Problem to be solved by the invention]

[0005] Therefore, it is necessary to design an automatic rotation mechanism for the side impact protection block. When the seat rotates back and forth relative to the base, the automatic folding structure can automatically fold the side impact protection block. [Means for solving the problem]

[0006] The automatic rotation mechanism of the present application controls the relative movement between a protective block body (first object) and a seat (second object), and the automatic rotation mechanism includes a locking mechanism, a driving mechanism, and an operating mechanism, wherein the locking mechanism is disposed on the first object and can be switched between a locked position for preventing the relative movement and an unlocked position for allowing the relative movement, the driving mechanism is disposed on the second object and can operate to switch the locking mechanism from the locked position to the unlocked position, and the operating mechanism is disposed on a rotating seat (third object) and can operate the driving mechanism when the rotating seat moves relative to a base (fourth object).

[0007] With the advantage of the automatic rotation mechanism of the present application, the relative movement between the protective block main body and the seat can be automatically unlocked based on the relative movement between the rotating seat and the seat, thereby realizing the linkage between multiple objects, reducing the user's required operations, and improving the usage experience.

[0008] In one embodiment, the protective block body can be rotated between an unfolded position and a folded position relative to the seat, and when the protective block body is in the unfolded position, the locking mechanism can be switched to the locked position to hold the protective block body in the unfolded position, and a foldable elastic member is disposed at a pivot joint between the protective block body and the seat, and the foldable elastic member biases the protective block body to the folded position.

[0009] The protective block body is held in the deployed position and biased to the folded position by a foldable elastic member, so that when the position lock of the protective block body is released, the protective block body automatically moves to the folded position.

[0010] In one embodiment, when the protective block body is in the folded position, the drive mechanism holds the locking mechanism in the unlocked position.

[0011] When the protective block body is in the folded position, the locking mechanism does not prevent the protective block body from moving to the unfolded position, so when the user needs to reset the protective block body to the unfolded position, he or she only needs to operate the protective block body and does not need to operate the locking mechanism at the same time.

[0012] In one embodiment, the locking mechanism includes a locking pin, a slot portion, and a locking elastic member, the locking pin is slidably arranged in the protective block body and can slide between an extended position in which it engages with the seat and a contracted position in which it disengages from the seat, the slot portion is arranged in the seat and has a locking slot that opens toward the locking pin, the locking pin is at least partially inserted into the locking slot when in the extended position, and the locking elastic member is arranged between the locking pin and the protective block body and biases the locking pin to the extended position.

[0013] A mechanism of the locking mechanism provides an operable locking relationship between the protection block body and the seat.

[0014] In one embodiment, the locking mechanism further includes a release member connected to the locking pin and operable from outside the protective block body to switch the locking pin between the extended position and the retracted position.

[0015] The user can directly unlock the protective block body by operating the release member without unlocking the protective block body by the relative movement between the rotating seat and the base, thus providing the user with another operation manner for unlocking the protective block body.

[0016] In one embodiment, the drive mechanism includes a cam and a traction member, the cam is rotatably arranged on the seat and is capable of abutting the locking pin, the cam having a drive portion and an avoidance portion arranged adjacent to each other along a circumference, the cam is capable of rotating such that the drive portion abuts the locking pin, thereby driving the locking pin to slide to the retracted position, or the avoidance portion is capable of rotating to correspond to the locking pin, thereby allowing the locking pin to slide to the extended position, the traction member is connected between the cam and the operating mechanism, the operating mechanism is operative to rotate the cam via the traction member such that the drive portion abuts the locking pin.

[0017] By providing a cam, the locking pin can be moved between an extended position and a retracted position in response to pulling action of the towing member.

[0018] In one embodiment, the drive mechanism further includes a cam elastic member disposed between the cam and the seat and providing a force to drive and rotate the cam so that the avoidance portion faces the lock pin.

[0019] The cam resilient member is used for the reset movement of the cam, and if the cam is not pulled by the towing member, the cam will automatically reset and allow the locking pin to move to the extended position.

[0020] In one embodiment, the operating mechanism includes a locking member, the locking member is connected to the towing member and includes a locking member first end and a locking member second end, the locking member first end abuts the base and the locking member second end is movably connected to the rotating seat, and when the rotating seat and the base move relative to each other, the locking member first end disengages from the base and the locking member second end slides in a pulling direction to pull the towing member.

[0021] The locking member serves to convert the relative movement between the base and the swivel seat into a pulling action of the towing member.

[0022] In one embodiment, the operating mechanism includes an operating mechanism elastic member disposed between the rotating seat and the locking member and biasing the locking member second end in a direction opposite to the pulling direction.

[0023] The operating mechanism elastic member is used to reset the locking member.

[0024] In one embodiment, the locking member is a locking lever, the locking member first end is a locking lever first end, the locking member second end is a locking lever second end, the locking lever second end is connected to the traction member, the base has a limiting slot opened in the swivel seat, the locking lever extends obliquely from the swivel seat to the base with respect to the pulling direction such that the locking lever first end abuts in the limiting slot, and when the swivel seat and the base move relative to each other, the locking lever first end rotates out of the limiting slot toward the swivel seat, and the operating mechanism further includes an auxiliary rod, the auxiliary rod including an auxiliary rod first end and an auxiliary rod second end, the auxiliary rod first end is rotatably connected to an auxiliary rod joint of the locking lever between the locking lever first end and the locking lever second end, and the auxiliary rod second end is rotatably connected to the swivel seat.

[0025] The auxiliary rod defines the movement direction of the lock lever, so that the lock lever not only rotates about the lock lever second end while rotating from the limit slot, but also simultaneously pulls the pulling member.

[0026] In one embodiment, the second end of the auxiliary rod is located in a direction opposite to the pulling direction relative to the second end of the lock lever, and the first end of the auxiliary rod (321) is connected to approximately the middle position of the lock lever.

[0027] By arranging the auxiliary bar as described above, the movement of the lock lever can be effectively restricted without generating large resistance.

[0028] In one embodiment, the first end of the lock lever presents a triangle protruding toward the base, two inclined surfaces of the triangle respectively form two guide inclined surfaces, and the limiting slot has portions corresponding to the two guide inclined surfaces, and when the rotating seat moves relative to the base in different directions, the two guide inclined surfaces are separated from the limiting slot so that the first end of the lock lever rotates out of the limiting slot toward the rotating seat.

[0029] According to the above-mentioned structure of the lock lever first end and the limiting slot, when the base rotates clockwise or counterclockwise relative to the rotating seat, the operating mechanism can move in the same manner.

[0030] In one embodiment, the locking member is a locking slider, the locking member first end is a slider first end, the locking member second end is a slider second end, the base has a limiting slot opened to the rotating seat, the locking slider is located in the slider slot of the rotating seat and can slide close to or away from the base, when the rotating seat and the base move relative to each other, the limiting slot pushes the slider first end and the locking slider slides away from the base, the locking slider has an operating slot extending obliquely with respect to the sliding direction of the locking slider, and a traction head of the traction member is slidably inserted into the operating slot, and when the locking slider slides away from the base, the locking slider pulls the traction member.

[0031] The locking slider provides another method of implementing the locking member, which may also pull on the towing member in response to relative motion between the base and the swivel seat.

[0032] In one embodiment, the rotating seat has a guide slot, the guide slot is vertically disposed below the lock slider and extends in the pulling direction, and the traction head is also slidably inserted into the guide slot and is restricted to slide in the pulling direction.

[0033] The guide slot can limit the direction of movement of the towing head, thereby avoiding unexpected movement of the towing head.

[0034] In one embodiment, the collapsible elastic member is a torsion spring.

[0035] The torsion spring may simply provide a folding force to the foldable member.

[0036] In one embodiment, the drive portion has an arcuate surface that protrudes outward relative to the pivot of the cam, and the avoidance portion has an arcuate surface that recesses inward relative to the pivot of the cam.

[0037] The above-described cam shape is advantageous for smooth movement of the lock pin.

[0038] The side impact protection device of the present disclosure includes the above-mentioned automatic rotation mechanism and a protection block body.

[0039] Thus, this application realizes the automatic folding function of the side impact protection block.

[0040] The child seat of the present application includes a base, a rotating seat, a seat, and the above-mentioned side impact protection device, wherein the rotating seat is rotatably arranged on the base, the seat is arranged on the rotating seat, and the side impact protection block of the side impact protection device is arranged on one or both sides of the seat.

[0041] The automatic folding function of the side impact protection block in the application can also be applied to child seats.

[0042] In one embodiment, the seat is fixed to the swivel seat or is slidable or rockable back and forth relative to the swivel seat.

[0043] The seat can slide or swing back and forth and has a function for adjusting the pitch angle of the seat. In the present application, a traction member is used to connect the lock mechanism and the drive mechanism, so that the connection between the lock mechanism and the drive mechanism is not affected when adjusting the pitch angle of the seat. [Brief description of the drawings]

[0044] [Figure 1] FIG. 2 is a front view of a child seat having a side impact protection block according to the present application in a deployed position. [Diagram 2] FIG. 2 is a side view of the child seat with the side impact protection block in the folded position. [Diagram 3] FIG. 2 is a side view of a child seat with the side impact protection blocks in the deployed position. [Figure 4] FIG. 13 shows the side impact protection block deployed relative to the base top rod when the seat rotates relative to the base. [Diagram 5] 13 shows the folded side impact protection block facing the base top rod when the seat rotates relative to the base. FIG. [Figure 6] 1A-1C are front and rear perspective views of a housing and cam of a side impact protection block. [Figure 7] 1A-1C are front and rear perspective views of a housing and cam of a side impact protection block. [Figure 8] 8 to 11 are top cross-sectional views of the side impact protection block, respectively, showing four states of the side impact protection block during the process from deployment to folding: the side impact protection block is in the deployed position, the cam is in the avoidance position, and the locking pin is in the extended position. [Figure 9]8 to 11 are top cross-sectional views of the side impact protection block, respectively, showing four states of the side impact protection block during the process from deployment to folding. The side impact protection block is in the deployed position, the cam is in the abutting position, and the locking pin is in the retracted position. [Figure 10] 8 to 11 are cross-sectional top views of the side impact protection block, respectively, showing four states of the side impact protection block during the process from unfolding to folding, where the side impact protection block is in the folded position, the cam is in the abutting position, and the lock pin is in the contracted position. [Figure 11] 8 to 11 are top cross-sectional views of the side impact protection block, respectively, showing four states of the side impact protection block during the process from unfolding to folding: the side impact protection block is in the folded position, the cam has returned to the avoidance position, and the lock pin is in the retracted position. [Figure 12] 1 is a plan view of the base and operating mechanism of a child car seat according to a first embodiment of the present application, with the seat in a forward or rearward position relative to the base; FIG. [Figure 13] FIG. 13 is a partial enlarged view of a block portion of FIG. 12. [Figure 14] FIG. 13 is a plan view of the base and operating mechanism with the seat rotating counterclockwise relative to the base from the position shown in FIG. 12. [Figure 15] FIG. 15 is a partially enlarged view of a block portion of FIG. [Figure 16] FIG. 15 is a plan view of the base and operating mechanism with the seat further rotated counterclockwise relative to the base from the position shown in FIG. 14. [Figure 17] FIG. 17 is a partial enlarged view of a block portion of FIG. 16. [Figure 18] 13 is a plan view of an operating mechanism in which the seat is in a forward or rearward position relative to the base according to a second embodiment of the present application. FIG. [Figure 19] FIG. 19 is a partial enlarged view of a block portion of FIG. 18. [Figure 20]FIG. 13 is a plan view of the operating mechanism showing the slider cut along a lateral-longitudinal plane with the seat in a forward or rearward position relative to the base. [Figure 21] FIG. 21 is a partial enlarged view of a block portion of FIG. 20. [Figure 22] FIG. 2 is a plan view of the operating mechanism with the slider removed to clearly show the traction head and guide slots, and with the seat in a forward or rearward position relative to the base. [Figure 23] FIG. 23 is a partial enlarged view of a block portion of FIG. 22. [Figure 24] FIG. 13 is a plan view of an operating mechanism for rotating the seat relative to the base. [Diagram 25] FIG. 25 is a partially enlarged view of a block portion of FIG. 24. [Figure 26] FIG. 1 is a plan view of the operating mechanism showing the slider cut along the lateral-longitudinal plane and the seat rotating relative to the base. [Figure 27] FIG. 27 is a partial enlarged view of a block portion of FIG. 26. [Figure 28] FIG. 13 is a perspective view of an operating mechanism for rotating the seat relative to the base. [Figure 29] FIG. 29 is a partial enlarged view of a block portion in FIG. 28. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0045] Although the present invention is described herein with reference to specific embodiments, the invention should not be limited to the details shown, and in particular, various modifications of these details may be made within the scope and range of equivalents of the claims without departing from the invention.

[0046] The description of directions such as "front", "back", "up", "down" and the like described herein is for ease of understanding only. The present invention is not limited to the relevant directions and can be adjusted according to the actual situation. Although this application is described with reference to the exemplary embodiment, the terms used are illustrative and not limiting.

[0047] A child seat 1 according to the present invention will be generally described with reference to Figs. 1 to 5.

[0048] The child seat 1 includes a base 500, a rotating seat 700, a seat 600, and a side impact protection device 400. The base 500 is for mounting the child seat 1 to a carrier seat 600 such as a car seat. The rotating seat 700 is rotatably disposed above the base 500 and can rotate about an axis 710 substantially vertical to the base 500, so that the seat 600 can be switched between a forward position (shown in Figs. 1 to 3) and a rearward position (not shown). The seat 600 is disposed above the rotating seat 700 and rotates together with the rotating seat 700 relative to the base 500. In some applications, the seat 600 can be fixed to the rotating seat 700, and in other applications, the seat 600 can slide or swing back and forth relative to the base 500 so that the seat 600 performs a pitch adjustment function. The present invention is suitable for these two applications. The side impact protection blocks 400 may be arranged one or two on one or both sides of the seat 600 and extend laterally from the sides of the seat 600 .

[0049] A top rod 540 extending upward substantially vertically is provided on the rear surface of the base 500 in order to abut against the backrest of the automobile seat and increase the stability of the child seat 1. As shown in Fig. 4, when the seat 600 and the swivel seat 700 rotate relative to the base 500, if the side impact protection block 400 is in the deployed position, the side impact protection block 400 may be obstructed by the top rod 540, and the seat 600 and the swivel seat 700 may not be able to rotate to a predetermined position.

[0050] The child seat 1 according to the present application is provided with an automatic rotation mechanism, and when the seat 600 and the rotating seat 700 rotate relative to the base 500, the side impact protection block 400 automatically rotates from the unfolded position to the folded position relative to the seat 600. In this way, interference or collision between the side impact protection block 400 and the top rod 640 can be effectively avoided, and damage to the child seat 1 can be avoided. At the same time, since there is no need to manually fold the side impact protection block 400 and then rotate the seat 600, the convenience of use and operation of the child seat 1 is greatly improved, as shown in FIG. 5.

[0051] As shown in Figs. 6 to 12, the automatic rotation mechanism according to the present application includes a lock mechanism 100, a drive mechanism 200, and an actuation mechanism 300. The lock mechanism 100 is disposed on the side impact protection block 400 and is switchable between a locked position that prevents the side impact protection block 400 from moving relative to the seat 600 and an unlocked position that allows this relative movement. The drive mechanism 200 is disposed on the seat 600 and is operable to switch the lock mechanism 100 from the locked position to the unlocked position. The actuation mechanism 300 is disposed on the swivel seat 700 and actuates the drive mechanism 200 when the swivel seat 700 (and the seat 600 as well) moves relative to the base 500, thereby causing the drive mechanism 200 to unlock the lock mechanism 100.

[0052] 8 to 11, the side impact protection block 400 includes a housing 410 and a protection block body 420. The housing 410 is attached to the side of the seat 600 or is formed as a part of the seat 600. The housing 410 has an accommodation space 411 for accommodating the protection block body 420.

[0053] The protection block body 420 is rotatable relative to the housing 410 (and the seat 600 as well) between the unfolded position and the folded position. When the protection block body 420 is in the unfolded position, the locking mechanism 100 can be switched to a locked position so that the protection block body 420 is maintained in the unfolded position. A foldable elastic member such as a torsion spring is disposed at the pivot joint between the protection block body 420 and the seat 600, and the torsion spring constantly exerts an inward folding force on the protection block body 420 to bias the protection block body 420 to the folded position. Also, when the protection block body 420 is in the folded position, the drive mechanism 200 holds the locking mechanism 100 in the unlocked position.

[0054] Therefore, as shown in Figures 8 and 9, when the protection block body 420 is in the deployed position, the locking mechanism 100 locks the protection block body 420 in the deployed position. As shown in Figure 10, when the rotating seat 700 (same as the seat 600) rotates relative to the base 500, the driving mechanism 200 drives the operating mechanism 300, which in turn drives the locking mechanism 100, so that the locking mechanism 100 no longer locks the protection block body 420 in the deployed position. At this time, the protection block body 420 is biased to the folded position by the torsion spring, realizing automatic folding. When the protection block body 420 needs to be deployed, since the locking mechanism 100 does not lock the protection block body 420 in the folded position, the protection block body 420 can be manually pulled to the deployed position.

[0055] 6 to 11, the lock mechanism 100 and the drive mechanism 200 according to the present invention will be described.

[0056] The locking mechanism 100 includes a locking pin 120 , a slot portion 110 , a locking resilient member 130 , and may further include a release member 140 .

[0057] The locking pin 120 is slidably disposed within the protection block body 420 and is slidable between an extended position in which it engages the seat 600 and a retracted position in which it disengages from the seat 600. More specifically, the locking pin 120 has a substantially cylindrical shape. In the extended position, the locking pin 120 at least partially extends from the protection block body 420.

[0058] As shown in FIG. 6, the slot portion 110 is disposed on the seat 600 (in other words, on the housing 410) and has a lock slot 111 that opens toward the lock pin 120. The lock pin 120 is at least partially inserted into the lock slot 111 when in the extended position. The slot portion 110 may be formed as a part of the side surface of the seat 600. The extension direction of the lock slot 111 faces the protection block body 420 in the extended position, and thus allows the lock pin 120 to be inserted into the lock slot 111 when the protection block body 420 rotates to the extended position, so that the protection block body 420 is rotated and then locked. The cam 210 of the drive mechanism 200 can effectively prevent the lock pin 120 from entering the slot portion 110, which will be described in detail later.

[0059] 8, the locking elastic member 130 is disposed between the locking pin 120 and the protection block body 420, and biases the locking pin 120 to the extended position. Thus, when the protection block body 420 rotates to the deployed position, the locking pin 120 automatically locks the protection block body 420. In this embodiment, the locking elastic member 130 may be a spring with one end sleeved onto one end of the locking pin 120, and the other end of the spring is connected within the protection block body 420.

[0060] 8, the release member 140 is disposed on the surface of the protection block body 420 facing outward or toward the housing 410, and is connected to the lock pin 120. The release member 140 is pressed and slid from the outside of the protection block body 420, thereby switching the lock pin 120 between an extended position and a contracted position relative to the protection block body 420. Thus, the user can directly operate the lock pin 120 by the release member 140 (not by the actuation mechanism 300) to release the rotation of the protection block body 420 relative to the seat 600.

[0061] As shown in FIGS. 7-11, the drive mechanism 200 includes a cam 210, a traction member 220, and may also include a cam resilient member 214.

[0062] The cam 210 is rotatably disposed on the seat 600 and can abut against the lock pin 120. The cam 210 includes a driving portion 211 and an avoiding portion 212 disposed adjacent to each other in the circumferential direction, the driving portion 211 having an arcuate surface protruding outward relative to the pivot 215 of the cam 210, and the avoiding portion 212 having an arcuate surface recessed inward relative to the pivot 215 of the cam 210. When the protection block body 420 is in the deployed position, the cam 210 can rotate so that the driving portion 211 abuts against the lock pin 120, thereby driving the lock pin 120 to slide to the contracted position (as shown in FIG. 9), or the avoiding portion 212 is pivoted to face the lock pin 120, thereby allowing the lock pin 120 to slide to the extended position (as shown in FIG. 8). When the protection block body 420 is in the folded position, the cam 210 holds the lock pin 120 in the contracted position by resisting the biasing force of the lock elastic member 130 which biases the lock pin 120 .

[0063] More specifically, the cam 210 is disposed in the cam slot 112 of the slot portion 110. The axial direction of the cam 210 is substantially perpendicular to the sliding direction of the lock pin 120. The cam slot 112 and the lock slot 111 are substantially perpendicular to each other, i.e., the cam slot 112 is substantially parallel to the radial direction of the cam 210, and the lock slot 111 is substantially parallel to the axial direction of the cam 210 or the pivot 215. The drive portion 211 is spaced apart from the avoidance portion 212 in the circumferential direction by about 90 degrees, and this circumferential distance can be set to be large or small within a range of, for example, 30 degrees or more and 150 degrees or less depending on the actual situation.

[0064] The cable slot 213 opens into the outer periphery of the cam 210 for passage of the traction member 220. The cable slot 213 is at least partially disposed along the outer periphery of the cam 210 and is adapted to guide a cable 221 that extends along the outer periphery of the cam 210 and is engaged with the cam 210.

[0065] The traction member 220 is connected between the cam 210 and the actuation mechanism 300, and the actuation mechanism 300 can be actuated to rotate the cam 210 by the traction member 220 so that the drive portion 211 abuts against the lock pin 120.

[0066] 7, the cam elastic member 214 is disposed between the cam 210 and the seat 600, and biases the cam 210 to rotate so that the avoiding portion 212 faces the lock pin 120. Therefore, when the operating mechanism 300 does not drive the driving mechanism 200, the avoiding portion 212 of the cam 210 always faces the lock pin 120, allowing the lock pin 120 to slide to its lock position.

[0067] 12 to 16, an actuation mechanism 300 according to a first embodiment of the present application will be described. The actuation mechanism 300 of the first embodiment includes a locking member (in this embodiment, a locking lever 310) and an actuation mechanism elastic member 330, and may also include an auxiliary rod 320.

[0068] The lock lever 310 includes a lock lever first end 311 and a lock lever second end 312. The lock lever first end 311 abuts against the base 500. The lock lever second end 312 is rotatably and slidably coupled to the rotating sheet 700 (specifically, a chute 730 provided on the rotating sheet 700) and connected to the towing member 220. As shown in FIG. 15 , when the rotating sheet 700 moves relative to the base 500, the lock lever first end 311 comes off the base 500, and the lock lever second end 312 slides in the pulling direction 314 to pull the towing member 220.

[0069] The pulling member 220 includes a cable sheath 222 and a cable 221 slidably disposed within the cable sheath 222. One end of the cable sheath 222 is connected to a cable sheath fixing portion 720 by the rotating seat 700, and the other end is connected to a housing 410 (not shown) of the protection block main body 420. One end of the cable 221 is connected to the lock lever second end 312, and the other end is connected to the cam 210 (see FIGS. 8 to 11). Therefore, when the lock lever second end 312 pulls the cable 221, the cable 221 correspondingly pulls the cam 210, whereby the cam 210 rotates in a direction in which it abuts against the lock pin 120. The cable sheath 222 determines the extension length of the cable 221 between the protection block body 420 and the rotating seat 700, so that the tension in the cable 221 does not change when the seat 600 (as well as the side impact protection block 400) moves relative to the rotating seat 700.

[0070] As shown in Figures 14 and 15, the lock lever first end 311 is positioned so that when the rotating seat 700 rotates relative to the base 500 (i.e., when the rotating seat 700 is in the forward or rearward position), the lock lever first end 311 receives a force abutting against the base 500, and this force is converted into a force pushing the lock lever second end 312 to slide in the pulling direction 314.

[0071] The actuation mechanism elastic member 330 is disposed between the rotating seat 700 and the lock lever 310, and biases the lock lever second end 312 in a direction opposite to the pulling direction 314. Specifically, one end of the actuation mechanism elastic member 330 is connected to a fixed pin or fixed lug (not shown) of the rotating seat 700, and the other end of the actuation mechanism elastic member 330 is connected to the lock lever second end 312 of the lock lever 310, and slides in the chute 730 following the lock lever second end 312. Therefore, when there is no relative rotation between the rotating seat 700 and the base 500 (i.e., when the rotating seat 700 is located between the forward position and the rearward position), the actuation mechanism elastic member resets the lock lever second end 312 and simultaneously resets the lock lever first end 311.

[0072] More specifically, the base 500 is provided with a limiting slot 510 that opens into the rotating sheet 700. The lock lever 310 extends obliquely from the rotating sheet 700 toward the base 500 with respect to the pulling direction 314 so that the lock lever first end 311 can abut against the limiting slot 510. When the rotating sheet 700 and the base 500 move relative to each other, the lock lever first end 311 is rotated from the limiting slot 510 toward the rotating sheet 700.

[0073] The base 500 may be provided with multiple limiting slots 510 along the rotation direction, for example, two limiting slots 510 at intervals of 180 degrees. Thus, when the rotating seat 700 (and the seat 600 as well) rotates to the forward position or the rearward position, the lock lever first end 311 may abut against different limiting slots 510. In this way, when the rotating seat 700 is in the forward position or the rearward position, the actuation mechanism 300 cannot actuate the drive mechanism 200, and therefore the lock pin 120 in the cam 210 cannot be unlocked, thereby holding the protection block body 420 in the deployed position.

[0074] The lock lever first end 311 may be in the shape of a triangle protruding toward the base 500, and two inclined surfaces of the triangle form two guide inclined surfaces 311a, respectively. The limiting slot 510 has portions corresponding to the two guide inclined surfaces 311a, respectively. As shown in FIG. 15, when the rotating sheet 700 moves in different directions relative to the base 500, the two guide inclined surfaces 311a are approximately spaced apart from the limiting slot 510, so that the lock lever first end 311 rotates from the limiting slot 510 toward the rotating sheet 700.

[0075] The auxiliary rod 320 includes an auxiliary rod first end 321 and an auxiliary rod second end 322. The auxiliary rod first end 321 is pivotally connected to an auxiliary rod joint 313 of the lock lever 310 between the lock lever first end 311 and the lock lever second end 312. The auxiliary rod second end 322 is pivotally connected to the pivot seat 700. More specifically, the auxiliary rod second end 322 is disposed at a position opposite to the pulling direction 314 with respect to the lock lever second end 312. In an embodiment, the auxiliary rod joint 313 is disposed at a substantially middle position of the lock lever 310.

[0076] As shown in FIGS. 14 and 15, when the rotating seat 700 rotates relative to the base 500, the lock lever first end 311 is pressed by the limiting slot 510, so that the lock lever first end 311 swings toward the rotating seat 700. Due to the presence of the auxiliary rod 320, the swinging of the lock lever first end 311 causes the lock lever second end 312 to slide in the pulling direction 314. This is because, if the lock lever first end 311 is swung in a state in which the lock lever second end 312 is not slid, the auxiliary rod 320 needs to be compressed, but the auxiliary rod 320 is incompressible. Therefore, as the lock lever first end 311 swings, the lock lever second end 312 slides toward the pulling direction 314.

[0077] 12 to 16 show the case where the swivel seat 700 rotates counterclockwise relative to the base 500. It should be understood that the operation method of the actuation mechanism 300 is the same when the swivel seat 700 rotates clockwise relative to the base 500.

[0078] 18 to 29, an actuation mechanism 300 according to a second embodiment of the present application will be described.

[0079] As in the first embodiment, the base 500 of the second embodiment is also provided with a limiting slot 510 that opens into the rotating sheet 700, and the shape of the limiting slot 510 in the second embodiment can be the same as that in the first embodiment, so the description of the base 500 and the limiting slot 510 will be omitted in the description of the second embodiment.

[0080] The actuation mechanism 300 of the second embodiment includes a lock member (in this embodiment, a lock slider 350 ) and a slider elastic member 360 .

[0081] The rotating seat 700 is provided with a slider slot 740 that extends in a radial direction (lateral direction in this embodiment) and opens toward the base 500. The lock slider 350 is disposed in the slider slot 740 and can slide toward or away from the base 500. A slider first end 351 of the lock slider 350 is located in the slider slot 740, and a slider second end 352 opposite to the slider first end 351 faces the base 500. The lock slider 350 extends from the slider slot 740 and can abut into the limiting slot 510 of the base 500 via the slider second end 352 (as shown in Figures 18 to 23).

[0082] The slider second end 352 may have a triangular or other shape that matches with the limiting slot 510. Thus, when the swivel seat 700 and the base 500 move relative to one another, the limiting slot 510 pushes against the slider first end 311, causing the locking slider 350 to slide away from the base 500 and retract into the slider slot 740 (as shown in Figures 24-29).

[0083] The lock slider 350 is provided with an operating slot 353 extending obliquely with respect to the sliding direction of the lock slider 350. The pulling head 223 of the towing member 220 is slidably inserted into the operating slot 353, so that the towing member 220 is pulled when the lock slider 350 slides in a direction away from the base 500. More specifically, the operating slot 353 is close to the base 500 on the front side in the pulling direction (vertical direction in this embodiment) and is away from the base 500 on the rear side in the pulling direction.

[0084] The rotating seat 700 may also include a guide slot 750 (shown in FIG. 22 to FIG. 23). The guide slot 750 may be disposed vertically below the lock slider 350 and extend in the pulling direction. The traction head 223 is also slidably inserted into the guide slot 750, and is therefore restricted by the guide slot 750 to slide in the pulling direction. More specifically, when the lock slider 350 slides in a direction away from the base 500, the traction head 223 begins to slide under the pull of the operating slot 353, while the traction head 223 is restricted by the guide slot 750, so that the traction head 223 can only slide in the direction of the guide slot 750.

[0085] The slider elastic member 360 is disposed between the slider second end 352 of the lock slider 350 and the slider slot 740, and biases the lock slider 350 toward the base 500. More specifically, the end of the slider slot 740 remote from the base 500 may include a slider elastic member biasing portion 741, and the slider elastic member biasing portion 741 may be formed to be recessed from the end of the slider slot 740 remote from the base 500. The slider elastic member 360 may be a compression spring, one end of which abuts against the slider elastic member biasing portion 741 and the other end of which abuts against the slider second end 352.

[0086] In conclusion, the present application provides an automatic rotation mechanism, a side impact protection block, and a child seat using the automatic rotation mechanism. It should be understood that the automatic rotation mechanism can also be applied to other devices.

[0087] It should be understood that the present application can be embodied in various forms without departing from the spirit and essence of the present application. The above-described embodiments are not limited to the details described above, but should be interpreted as broadly as possible within the scope defined by the claims, and therefore, all modifications that come within the scope of the claims or their equivalents should be covered by the claims. [Explanation of symbols]

[0088] 1: Child seats 100: Locking mechanism 110: Slot section 111: Lock Slot 112: Cam slot 120: Lock pin 130: Locking elastic member 140: Release member 200: Drive mechanism 210: Cam 211: Drive unit 212: Evasion part 213: Cable slot 214: Cam elastic member 215: Pivot 220: Traction member 221: Cable 222: Cable sheath 223: Traction head 300: Operating mechanism 310: Lock lever (locking member) 311: Lock lever first end (lock member first end) 311a: Guide slope 312: Lock lever second end (lock member second end) 313: Auxiliary rod joint 314: Tensile direction 320: Auxiliary rod 321: First end of auxiliary rod 322: Second end of auxiliary rod 330: Elastic member for operating mechanism 350: Lock slider (locking member) 351: slider first end (lock member first end) 352: slider second end (lock member second end) 353: Action slot 360: Slider elastic member 400: Side impact protection block 410: Housing 411: Containment Space 420: Protection block body (first object) 500: Base (fourth object) 510: Limited Slot 540: Top Rod 600: Sheet (second object) 700: Rotating seat (third object) 710: Axis 720: Cable sheath fixing part 730: Shoot 740: Slider slot 741: Slider elastic member biasing part 750: Guide slot

Claims

1. An auto-rotation mechanism for controlling relative movement between a first object (400) and a second object (600), comprising: The automatic rotation mechanism includes a locking mechanism (100), a driving mechanism (200), and an operating mechanism (300); the locking mechanism (100) is disposed on the first object (400) and is switchable between a locked position to prevent the relative movement and an unlocked position to allow the relative movement; the drive mechanism (200) is disposed on the second object (600) and is operable to switch the locking mechanism (100) from the locked position to the unlocked position; The operating mechanism (300) is disposed on a third object (700) and is capable of operating the drive mechanism (200) when the third object (700) moves relative to a fourth object (500). An automatic rotation mechanism.

2. the first object (400) can be rotated between an unfolded position and a folded position relative to the second object (600), and when the first object (400) is in the unfolded position, the locking mechanism (100) can be switched to the locked position to hold the first object (400) in the unfolded position; a foldable elastic member is disposed at a pivot joint between the first object (400) and the second object (600), the foldable elastic member biasing the first object (400) to the folded position; 2. The automatic rotation mechanism according to claim 1 .

3. When the first object (400) is in the folded position, the drive mechanism (200) holds the locking mechanism (100) in the unlocked position.

3. The automatic rotation mechanism according to claim 2.

4. The lock mechanism (100) includes a lock pin (120), a slot portion (110), and a lock elastic member (130). the locking pin (120) is slidably disposed on the first object (400) and is slidable between an extended position in engagement with the second object (600) and a retracted position in disengagement from the second object (600); the slot portion (110) is disposed in the second object (600) and has a locking slot (111) that opens toward the locking pin (120), and the locking pin (120) is at least partially inserted into the locking slot (111) when in the extended position; the locking elastic member (130) is disposed between the locking pin (120) and the first object (400) and biases the locking pin (120) to the extended position; 4. The automatic rotation mechanism according to claim 1, wherein the automatic rotation mechanism is a rotation mechanism for rotating the rotating member.

5. The locking mechanism (100) further includes a release member (140); the release member (140) is connected to the lock pin (120) and can be operated from outside the first object (400) to switch the lock pin (120) between the extended position and the retracted position; 5. The automatic rotation mechanism according to claim 4.

6. The drive mechanism (200) includes a cam (210) and a traction member (220); the cam (210) is rotatably arranged on the second object (600) and can abut against the lock pin (120), the cam (210) has a drive portion (211) and an avoidance portion (212) arranged adjacent to each other along a circumference, the cam (210) can rotate so that the drive portion (211) abuts against the lock pin (120), thereby driving the lock pin (120) to slide to the contracted position, or the avoidance portion (212) can rotate to face the lock pin (120), thereby allowing the lock pin (120) to slide to the extended position; the traction member (220) is connected between the cam (210) and the operating mechanism (300), and the operating mechanism (300) operates to rotate the cam (210) via the traction member (220) so that the drive part (211) abuts against the lock pin (120); 6. The automatic rotation mechanism according to claim 4 or 5.

7. The drive mechanism (200) further includes a cam elastic member (214), The cam elastic member (214) is disposed between the cam (210) and the second object (600) and provides a force for driving the cam (210) to rotate so that the avoidance portion (212) faces the lock pin (120).

7. The automatic rotation mechanism according to claim 6.

8. The operating mechanism (300) includes a locking member; the locking member is connected to the towing member (220) and includes a locking member first end and a locking member second end; The first end of the locking member abuts the fourth object (500); the locking member second end is movably coupled to the third object (700); When the third object (700) and the fourth object (500) move relative to each other, the first end (311) of the locking member is released from the fourth object (500), and the second end (312) of the locking member slides in a pulling direction to pull the towing member (220).

8. The automatic rotation mechanism according to claim 7.

9. The movement mechanism (300) includes a movement mechanism elastic member (330); the operating mechanism elastic member (330) is disposed between the third object (700) and the locking member (310) and biases the locking member second end (312) in a direction opposite to the pulling direction (314); 9. The automatic rotation mechanism according to claim 8.

10. the locking member is a locking lever (310), the locking member first end is a locking lever first end (311), the locking member second end is a locking lever second end (312), the locking lever second end (312) is connected to the towing member (220); the fourth object (500) has a limiting slot (510) opened in the third object (700), the lock lever (310) extends obliquely from the third object (700) to the fourth object (500) with respect to the pulling direction (314) such that the lock lever first end (311) abuts in the limiting slot (510), and when the third object (700) and the fourth object (500) move relative to each other, the lock lever first end (311) rotates from the limiting slot (510) towards the third object (700); The operating mechanism (300) further includes an auxiliary rod (320); The auxiliary rod (320) includes an auxiliary rod first end (321) and an auxiliary rod second end (322); the auxiliary rod first end (321) is rotatably connected to an auxiliary rod joint (313) of the lock lever (310) between the lock lever first end (311) and the lock lever second end (312); The auxiliary rod second end (322) is rotatably connected to the third object (700).

10. The automatic rotation mechanism according to claim 9.

11. The auxiliary rod second end (322) is located in a direction opposite to the pulling direction (314) relative to the lock lever second end (312); The first end (321) of the auxiliary rod is connected to a substantially central position of the lock lever (310).

11. The automatic rotation mechanism according to claim 10.

12. the lock lever first end (311) presents a triangle protruding towards the fourth object (500), two slopes of the triangle respectively form two guide slopes (311a), the limiting slot (510) has portions corresponding to the two guide slopes (311a), and when the third object (700) moves relative to the fourth object (500) in different directions, the two guide slopes (311a) are separated from abutment with the limiting slot (510) so that the lock lever first end (311) rotates from the limiting slot (510) towards the third object (700); 12. The automatic rotation mechanism according to claim 10 or 11.

13. the locking member is a locking slider (350), the locking member first end is a slider first end (351), and the locking member second end is a slider second end (352); The fourth object (500) comprises a limiting slot (510) opened in the third object (700); the lock slider (350) is located in a slider slot (740) of the third object (700) and can slide close to or away from the fourth object (500), and when the third object (700) and the fourth object (500) move relative to each other, the limiting slot (510) pushes against the slider first end (311) and the lock slider (350) slides away from the fourth object (500); the lock slider (350) has an operating slot (353) extending obliquely with respect to the sliding direction of the lock slider (350), and a pulling head (223) of the towing member (220) is slidably inserted into the operating slot (353), and when the lock slider (350) slides away from the fourth object (500), the lock slider (350) pulls the towing member (220); 13. The automatic rotation mechanism according to claim 8, wherein the automatic rotation mechanism is a rotation mechanism for rotating the rotating member.

14. the third object (700) comprises a guide slot (750), the guide slot (750) being disposed vertically below the lock slider (350) and extending in the pulling direction; The pulling head (223) is also slidably inserted into the guide slot (750) and is restricted to slide in the pulling direction.

14. The automatic rotation mechanism according to claim 13.

15. The foldable elastic member is a torsion spring.

15. The automatic rotation mechanism according to claim 2, wherein the automatic rotation mechanism is a rotation mechanism for rotating the rotating member.

16. The drive portion (211) has an arcuate surface that protrudes outward relative to the pivot (215) of the cam (210), and the avoidance portion (212) has an arcuate surface that is recessed inward relative to the pivot (215) of the cam (210).

16. The automatic rotation mechanism according to claim 6,

17. The automatic rotation mechanism according to any one of claims 1 to 16, and a protective block body (420) that serves as the first object (400). A side impact protection device comprising:

18. A child seat (1) comprising a base (500), a rotating seat (700), a seat (600) and a side impact protection device according to claim 17, The rotating seat (700) is rotatably disposed above the base (500); The seat (600) is disposed above the rotating seat (700), The side impact protection block (400) of the side impact protection device is arranged on one or both sides of the seat (600), The second object (600) is the seat (600), the third object (700) is the rotating seat (700), and the fourth object (500) is the base (500). A child seat characterized by the above.

19. The seat (600) is fixed to the rotating seat (700) or is slidable or swingable back and forth relative to the rotating seat (700).

20. A child seat as claimed in claim 18.

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