Unlocking mechanism, adjusting device and baby carriage

Abstract

The utility model provides an unlocking mechanism, an adjusting device and a baby carriage, the unlocking mechanism is used for releasing relative positioning between a first component and a second component and comprises a locking piece and an unlocking piece, the locking piece is arranged to be capable of moving between a locking position and an unlocking position, and the unlocking piece is arranged between the locking position and the unlocking position; the locking piece is used for blocking the relative movement between the first component and the second component; the safety lock component is arranged to be capable of moving between a safety locking position and a safety unlocking position, the safety lock component blocks relative movement between the first component and the second component at the safety locking position, and the safety lock component is arranged to be capable of moving between the safety locking position and the safety unlocking position. When the locking piece is located at the unlocking position and the safety lock component is located at the safety unlocking position, the first component and the second component can move relatively. According to the unlocking mechanism disclosed by the invention, the relative positioning between the two components can be reliably kept or released.

Description

Technical Field

[0001] This disclosure relates to a release mechanism, and also to an adjustment device having the release mechanism and a stroller having the release mechanism and the adjustment device installed. Background Technology

[0002] Adjusting the backrest angle is a common practice when pushing and using strollers, especially for infants under six months old. The most common usage mode for strollers is the reclining position, where the angle between the backrest and seat can exceed 150 degrees. However, if the stroller is pushed on uneven ground, the impact can cause the backrest to shift, pivoting towards an upright position. This reduces the angle between the backrest and seat, potentially posing a safety hazard and startling the infant. Utility Model Content

[0003] The purpose of this disclosure is to provide a release mechanism that can reliably maintain or release the relative positioning between two components to reduce the problem of automatic backrest shifting in strollers.

[0004] According to the present disclosure, a release mechanism is proposed for releasing the relative positioning between a first component and a second component. The release mechanism includes: a locking member configured to move between a locked position and a release position, wherein in the locked position, the locking member blocks relative movement between the first component and the second component; and a safety lock member configured to move between a safety locked position and a safety release position, wherein in the safety locked position, the safety lock member blocks relative movement between the first component and the second component. When the locking member is in the release position and the safety lock member is in the safety release position, relative movement between the first component and the second component is possible.

[0005] In one embodiment, the release mechanism includes a safety lock actuating member that can be operated to move the safety lock component to the safety release position.

[0006] In one embodiment, the release mechanism further includes a safety lock traction member, one end of which is connected to the safety lock component, and the other end of which is connected to the safety lock operating member, such that the safety lock operating member drives the safety lock component via the safety lock traction member.

[0007] In one embodiment, the safety lock traction component includes a traction line with traction line ends at both ends. At least one of the safety lock component and the safety lock operating component is provided with a traction component fixing part. The traction component fixing part is capable of accommodating the traction line ends and has a traction component channel on its side wall to allow the traction line connected to the traction line ends to extend out of the traction component fixing part through the traction component channel.

[0008] In one embodiment, the safety lock operating member is movably disposed on the first member and is movable between an operating member locked position and an operating member unlocked position. In the operating member locked position, the safety lock operating member allows the safety lock member to remain in the safety locked position. In the operating member unlocked position, the safety lock operating member drives the safety lock member to the safety unlocked position via the safety lock traction member.

[0009] In one embodiment, the safety lock operating element is a rotary knob rotatably mounted on a fixed base connected to the first component.

[0010] In one embodiment, the fixed base is provided with a movable safety lock retainer, which is configured to hold the rotary knob in the unlocked position of the operating element.

[0011] In one embodiment, the safety lock retainer is provided with a retainer blocking structure, and the rotary knob is provided with a rotary knob blocking structure. The rotary knob blocking structure and the retainer blocking structure can engage to hold the rotary knob in the unlocking position of the operating member. The unlocking mechanism is further provided with a retainer elastic body, which is configured to drive the safety lock retainer against the rotary knob.

[0012] In one embodiment, the rotary knob is further provided with another rotary knob blocking structure, which can engage with the retaining member blocking structure to hold the rotary knob in the operating member locked position.

[0013] In one embodiment, the safety lock actuating element is a push button slidably mounted on the first member, the push button being configured to drive the safety lock member via the safety lock traction element.

[0014] In one embodiment, a push button transmission member is provided between the push button and the safety lock traction member. The push button transmission member is configured to transmit the sliding of the push button in a first direction to the other end of the safety lock traction member that moves in a second direction, wherein the first direction and the second direction are the same or different.

[0015] In one embodiment, the push button is provided with a push button inclined surface, and the push button transmission component is provided with a transmission inclined surface. The push button inclined surface and the transmission inclined surface abut against each other, and the inclination direction of both is inclined to the moving direction of the push button.

[0016] According to another aspect of this disclosure, an adjustment device is proposed for adjusting the position of a first component relative to a second component. The adjustment device is disposed on the first component and includes the release mechanism as described above.

[0017] In one embodiment, the adjustment device includes: a reel configured to rotate for winding a strap, the two ends of which extend outside the adjustment device and are fixed relative to the second member; the effective length of the strap can be increased or decreased to adjust the position of the first member relative to the second member; wherein the reel is provided with a plurality of reel engaging structures, and the safety lock member is provided with a safety lock engaging structure; when the safety lock member moves to the safety locking position, the safety lock engaging structure engages with one of the reel engaging structures to prevent the reel from rotating.

[0018] In one embodiment, the reel is provided with a ratchet or gear that rotates coaxially. When the locking member moves to the locking position, the engaging portion of the locking member engages with the teeth on the ratchet or gear to prevent the ratchet or gear from rotating in at least one direction. The plurality of reel engaging structures are internal teeth provided on the ratchet or gear.

[0019] In one embodiment, the adjusting device includes a safety lock elastic element, which is configured to engage the safety lock engagement structure with one of the reel engagement structures.

[0020] According to another aspect of this disclosure, a stroller with a seat is proposed, wherein the stroller is equipped with the aforementioned adjustment device and the aforementioned release mechanism, wherein the release mechanism is used to release the adjustment device, the first component is the backrest of the seat, and the second component is the seat portion of the seat.

[0021] The beneficial effect of this disclosure is that it can reliably maintain or release the relative positioning between the two components, thereby reducing the problem of the stroller back automatically shifting.

[0022] The objects, features, solutions, and advantages of this disclosure will become more apparent from the following detailed description of the disclosure taken in conjunction with the accompanying drawings. Attached Figure Description

[0023] The accompanying drawings are included herein to provide a further understanding of the present disclosure and are incorporated in and form a part of this specification. The drawings illustrate embodiments of the present disclosure and, together with the following description, serve to illustrate the ideas of the present disclosure.

[0024] In the attached diagram:

[0025] Figures 1A to 1C This is a diagram of a stroller equipped with adjustment mechanisms.

[0026] Figure 2 and Figure 3 These are exploded schematic diagrams of the adjustment device, which employs a release mechanism, viewed from two different angles.

[0027] Figure 4 and Figure 5 They are Figure 2 The diagram shows the appearance of the adjustment device as viewed from two angles.

[0028] Figure 6A and Figure 6B These are schematic diagrams of the reel of the adjustment device viewed from two different angles.

[0029] Figure 7A and Figure 7B These are schematic diagrams of the auxiliary dial of the adjustment device viewed from two different angles.

[0030] Figure 8 , Figure 9 and Figure 10 These are the displays Figure 2 A schematic diagram of the internal structure of the adjustment device as viewed from three angles.

[0031] Figure 11A and Figure 12A They are Figure 2 The diagram shows the locking element of the adjustment device in the locked and unlocked positions, respectively.

[0032] Figure 11B and Figure 12B This is a schematic diagram of another embodiment of the adjustment device.

[0033] Figure 13 This is a schematic diagram of the appearance of an adjustment device employing a first embodiment of the release mechanism according to the present disclosure.

[0034] Figure 14 yes Figure 13 A partially exploded diagram of the adjustment device shown.

[0035] Figure 15 yes Figure 13 The diagram shown is a schematic of the adjustment device without the first outer cover.

[0036] Figure 16 yes Figure 13 The diagram shown illustrates the adjustment device without the first outer cover and the safety lock traction component.

[0037] Figure 17 yes Figure 15 The diagram shows the adjustment device in a locked state.

[0038] Figure 18 yes Figure 15 The diagram shows the adjustment device in the unlocked state.

[0039] Figure 19 yes Figure 17 The diagram shown illustrates the adjustment device without the inner cover and safety lock components.

[0040] Figure 20 yes Figure 14 A schematic diagram of the safety lock component of the release mechanism is shown.

[0041] Figure 21 and Figure 22 It shows Figure 14 The diagram shows the safety lock component in the safety locked position.

[0042] Figure 23 and Figure 24 It shows Figure 14 The diagram shows the safety lock component in the safety release position.

[0043] Figure 25 It shows Figure 13 The diagram shows a partial exploded view of the operating components of the release mechanism and the safety lock operating components.

[0044] Figure 26 It shows Figure 13 The diagram shown is an exploded view of the release mechanism without the fixed base.

[0045] Figure 27 yes Figure 26 The adjustment device shown has its side view of the first outer cover and inner cover removed, with the safety lock operating element in the operating element locked position.

[0046] Figure 28 yes Figure 26 The adjustment device shown has removed the side view of the first outer cover and inner cover, wherein the safety lock operating element is in the operating element release position.

[0047] Figure 29 This is a front view of the first component showing an adjustment device installed using a second embodiment of the release mechanism according to the present disclosure.

[0048] Figure 30This is a schematic diagram of the appearance of an adjustment device employing a second embodiment of the release mechanism according to the present disclosure.

[0049] Figure 31 yes Figure 30 The diagram shown is a schematic of the adjustment device without the first outer cover.

[0050] Figure 32 yes Figure 31 The diagram shows a safety lock component of the release mechanism.

[0051] Figure 33 This shows from another perspective Figure 30 The safety lock operating component of the release mechanism shown has its push button base removed and is in the operating component locked position on the right.

[0052] Figure 34 It shows Figure 31 The diagram shows the safety lock component of the release mechanism in the safe locked position.

[0053] Figure 35 This shows from another perspective Figure 30 The safety lock operating component of the release mechanism shown has its push button base removed and is in the release position on the right.

[0054] Figure 36 It shows Figure 31 The diagram shows the safety lock component of the release mechanism in the safe release position.

[0055] Figure 37 This is a schematic diagram of a box that uses the unlocking mechanism according to this disclosure.

[0056] Figure 38 yes Figure 37 The diagram shows the box being opened.

[0057] Figure 39 This is a schematic diagram of a baby carrier that uses the release mechanism according to this disclosure.

[0058] Figure 40 yes Figure 39 The diagram shows the angle adjustment of the support component of the baby carrier relative to the carrying component.

[0059] List of reference numerals

[0060] 1 stroller

[0061] 11 Backrest, First Component

[0062] 12-seat section, second component

[0063] 13-frame

[0064] 2 Adjustment device

[0065] 20 housing

[0066] 21 First outer cover

[0067] 22 Second outer cover

[0068] 23 Inner Cover

[0069] 23A Safety Lock Guide Section

[0070] 23B Sheath Fixing Part

[0071] 231 Fixed Column

[0072] 232 Connecting Part

[0073] 233 through hole

[0074] 234 opening

[0075] 24 rolls

[0076] 24A First Plate

[0077] 24A1, 24A2 reel joint

[0078] 24B Second Disc

[0079] 24C Intermediate Connector

[0080] 240 straps

[0081] 241 winding groove

[0082] 242 mounting holes

[0083] 243 card slot

[0084] 244 ratchet

[0085] 245, 245' guide groove

[0086] 246 gears

[0087] 248 reel locking structure

[0088] 25mm spring

[0089] 251 First End

[0090] 252 Second End

[0091] 26 connectors

[0092] 27 auxiliary disks

[0093] 271 Ontology

[0094] 272 First Limiting Piece

[0095] 273 Second Limiting Piece

[0096] 274 limit channels

[0097] 28 elastic elements

[0098] 281 end

[0099] 282 on the other end

[0100] 3 boxes

[0101] 31 Coverings

[0102] 32 main bodies

[0103] 4 Baby carriers

[0104] 41 Backpack Components

[0105] 42 support components

[0106] 100 locking parts

[0107] 101 connection side

[0108] 102 Free Side

[0109] 103 Card Unit

[0110] 104 protrusions

[0111] 200 drive components

[0112] 201 First End

[0113] 202 Second End

[0114] 300 pull handle

[0115] 300” slide handle

[0116] 303” Slide

[0117] 304" operating part force application section

[0118] 500 fixed base

[0119] 504 return spring

[0120] 510 Fixed Pivot Shaft

[0121] 520 retainer housing

[0122] 600 fixed pin

[0123] D1 Winding direction

[0124] D2 Rewinding direction

[0125] S100 safety lock components

[0126] S101 Safety Lock Engagement Structure

[0127] S102 safety lock elastic element

[0128] S103 Elastic Member Fixing Part

[0129] S200 safety lock traction component

[0130] S210 sheath

[0131] S220 traction line

[0132] S221 traction cable head

[0133] S230 Traction Component Fixing Part

[0134] S240 Traction Channel

[0135] S300 rotary knob, safety lock operating component

[0136] S310 safety lock retainer

[0137] S311 retainer elastomer

[0138] S312 retainer blocking structure

[0139] S301 Rotary Knob Blocking Structure

[0140] S302 Another rotary knob blocking structure

[0141] S300' Push Button, Safety Lock Actuator

[0142] S301' Push Button Bevel

[0143] S302' Push Button Base

[0144] S310' Push Button Transmission Component

[0145] S311' Transmission Inclined Surface Detailed Implementation

[0146] This disclosure will now be described in detail with reference to the accompanying drawings.

[0147] It should be understood that in the following description of the embodiments, directional terms such as “up,” “down,” and “top” are merely illustrative descriptions with reference to the accompanying drawings and are not intended to limit the orientation and positional relationships of the relevant objects or elements.

[0148] The unlocking mechanism according to this disclosure can be used to release the relative positioning between the first component and the second component, allowing relative movement between them. It should be understood that the unlocking mechanism according to this disclosure can be applied to various fields where the relative positioning between two components needs to be unlocked.

[0149] For example, the first component and the second component may be the backrest 11 and seat 12 of a stroller 1 or the backrest and seat of a car seat (see [reference]). Figure 1A , Figure 1B , Figure 1C ), or respectively, the cover of the box 3—an opening cover (e.g., a door or lid) 31 and the body 32 (see Figure 37 and Figure 38 It can also be the support component 42 and the carrying component 41 of the baby carrier 4 (see...). Figure 39 and Figure 40 ).

[0150] Furthermore, the first and second components released by the unlocking mechanism according to this disclosure can be either one fixed and the other movable, or both movable.

[0151] To more clearly describe the unlocking mechanism according to this disclosure, the following description will first take the application of the unlocking mechanism in a stroller 1 as an example.

[0152] strollers using release mechanisms

[0153] Figures 1A to 1C A stroller 1 is shown. In this embodiment, the first component is the backrest 11 of the stroller 1's seat, and the second component is the seat portion 12. The seat portion 12 is mounted to the stroller 1's frame 13. The movement of the backrest 11 relative to the seat portion 12 is a pivoting movement. For example, the backrest 11 can pivot relative to the seat portion 12 to a contact position, or to an upright position, or to a lying position. In other words, the positions to which the backrest 11 can pivot relative to the seat portion 12 include the contact position, the upright position, the lying position, and other suitable positions between any two of these three positions.

[0154] The position of the backrest 11 relative to the seat 12 is adjusted by an adjustment device 2, which is released by a release mechanism according to the present disclosure.

[0155] In this disclosure, "upright position" refers to a position where the backrest 11 pivots relative to the seat 12 to allow the infant to sit upright in the stroller, for example, the angle between the backrest 11 and the seat 12 is approximately 90 degrees, but is not limited thereto. "Reclining position" refers to a position where the backrest 11 pivots relative to the seat 12 to allow the infant to lie flat in the stroller, for example, the angle between the backrest 11 and the seat 12 is approximately 180 degrees, but is not limited thereto. It should be understood that in this disclosure, the positions to which the backrest 11 can pivot relative to the seat 12 include the contact position, the upright position, the reclining position, and other suitable positions between these three positions. Here, "suitable position" means a position where the backrest 11 pivots relative to the seat 12 to allow the infant to sit or lie comfortably in the stroller or allows the stroller to fulfill certain usage needs, such as folding the seat or stroller.

[0156] In the following description, the case in which the backrest 11 pivots relative to the seat 12 between an upright position and a lying position (including the case of pivoting to an upright position or a lying position) will be used as an example.

[0157] For ease of description, this article defines the direction the seat faces as "front" and the direction the seat backs to as "back".

[0158] Including the adjustment device of the release mechanism

[0159] It should be understood that, Figures 1A to 1C In the illustrated embodiment, the adjustment device 2 according to this disclosure is used to adjust the pivot position of the backrest 11 of the stroller seat relative to the seat portion 12. However, this disclosure is not limited thereto. The adjustment device 2 according to this disclosure can also be used to adjust the position between other two components, for example, to adjust the pivot position of the backrest of another seat (such as a car seat) relative to the seat portion, or to adjust the position of a cover 31 relative to the main body 32 (see [link to relevant documentation]). Figure 37 and Figure 38 ), or for adjusting the position of the support component 42 of the baby carrier 4 relative to the carrying component 41 (see Figure 39 and Figure 40 ).

[0160] like Figures 1A to 1C As shown, the adjustment device 2 is located on the rear side of the backrest 11 of the stroller 1. Of course, the adjustment device 2 can also be located in other suitable positions on the stroller 1, as long as it is convenient for the user to operate.

[0161] exist Figures 2 to 5 In the illustrated embodiment, the adjustment device 2 may include a first outer cover 21, a second outer cover 22, and an inner cover 23 located between the first outer cover 21 and the second outer cover 22. The first outer cover 21, the second outer cover 22, and the inner cover 23 constitute the housing 20 of the adjustment device 2 (see figure). Figure 4 and Figure 5 However, this disclosure is not limited thereto. In another embodiment, two or all three of the first outer cover 21, the second outer cover 22, and the inner cover 23 may be integrally formed components. In yet another embodiment, the first outer cover 21 may be omitted.

[0162] The adjusting device 2 may also include a reel 24, which is rotatably disposed between the inner cover 23 and the second outer cover 22 to supply the strap 240 (see Figure 1C and Figure 6A ) wound around it, with both ends of the strap 240 extending outside the housing 20 (e.g. Figure 1C , Figure 4 and Figure 5 (as shown), and fixed to the frame 13 of the stroller 1. Of course, the two ends of the strap 240 can also be fixed to the seat 12 or other parts of the stroller 1, as long as the two ends of the strap 240 are fixed relative to the seat 12.

[0163] It should be noted that the strap 240 shown in the diagram is for illustrative purposes only. Figure 6A and Figure 6B In the illustrated embodiment, the reel 24 includes a first reel 24A and a second reel 24B in an annular shape. The first reel 24A and the second reel 24B are connected by an intermediate connecting portion 24C, forming a circumferentially extending winding groove 241 between the first reel 24A and the second reel 24B. The first reel 24A and the intermediate connecting portion 24C together form a mounting hole 242 located within the reel 24. The first reel 24A is also provided with two guide grooves 245 and 245'. The guide grooves 245 and 245' on the first reel 24A can be arranged as follows: Figure 6A It can be set up symmetrically as shown, or it can be set asymmetrically, and its position can be adjusted according to actual needs.

[0164] The adjusting device 2 may also include a spring 25, such as Figure 2 As shown, the spring 25 is located inside the reel 24, for example, it can be as follows: Figure 6A It is installed in the mounting hole 242 inside the reel 24 as shown.

[0165] The adjusting device 2 may further include a connector 26 for fixing the adjusting device 2 to the backrest 11, wherein the connector 26 is disposed on the front side of the backrest plate of the backrest 11, and the second outer cover 22 is disposed on the rear side of the backrest plate of the backrest 11, such as Figure 2 and Figure 3 As shown, fasteners, such as screws, can be sequentially inserted into connector 26, back plate, second outer cover 22, inner cover 23 and first outer cover 21 to fix adjustment device 2 to back 11.

[0166] In another embodiment, the connecting member 26 may be omitted, and the housing 20 of the adjusting device 2 may be directly fixed to the backrest 11 by fixing members such as screws, thereby reducing the number of parts and optimizing the fixing method.

[0167] In the adjustment device 2, the strap 240 supports the backrest 11 of the stroller 1. When the backrest 11 pivots towards an upright position or towards a reclining position, the effective length of the strap 240 required to support the backrest 11 (i.e., the length of the strap 240 extending beyond the housing 20 of the adjustment device 2) changes. To keep the strap 240 taut while supporting the backrest 11, the reel 24 winds a portion of the strap 240 around itself and, through its own rotation, winds or unwinds a portion of the strap 240 as needed. Figure 6A and Figure 6B As shown, the circumferential side of the reel 24 is provided with a winding groove 241, and the belt 240 is wound in the winding groove 241.

[0168] In addition, such as Figure 8 and Figure 9 As shown, the spring 25 is configured to drive the reel 24 to rotate in the winding direction D1. Thus, by means of the elastic force of the spring 25, the reel 24 can be driven to rotate in the winding direction D1, at which time the strap 240 is wound onto the reel 24. On the other hand, when the reel 24 rotates in the unwinding direction D2, which is opposite to the winding direction D1, the spring 25 is wound tight, at which time the strap 240 is unwound from the reel 24.

[0169] More specifically, Figure 8 and Figure 9 The illustrated embodiment shows one arrangement of the spring 25. In this embodiment, the spring 25 is wound and housed in a mounting hole 242 within the reel 24. The first end 251 of the spring 25 engages with a fixing post 231 of the inner cover 23, and the second end 252 engages with a groove 243 on the side wall of the mounting hole 242 of the reel 24. Of course, this disclosure is not limited to this; the spring 25 can be arranged in other commonly used ways, as long as it can drive the reel 24 to rotate.

[0170] like Figure 2 , Figure 3 and Figure 10 As shown, in order to prevent the spring 25 from dislodging from the mounting hole 242 of the reel 24, an auxiliary disk 27 can be provided on the outside of the mounting hole 242. The auxiliary disk 27 is configured to block the spring 25.

[0171] In addition, the auxiliary disc 27 also serves to assist in winding the belt 240. Figure 7A and Figure 7BIn the illustrated embodiment, the auxiliary disc 27 includes a body 271 and a first limiting piece 272 and a second limiting piece 273 extending outward from the outer periphery of the body 271. The first limiting piece 272 and the second limiting piece 273 are axially spaced to form a limiting channel 274 through which the strap 240 passes (see figure). Figure 7A The limiting channel 274 can prevent the strap 240 from slipping off the auxiliary plate 27.

[0172] The strap 240 only wraps around the outer periphery of half of the auxiliary disk 27, thus, in Figure 7A In the illustrated embodiment, the first limiting piece 272 and the second limiting piece 273 are disposed only on the outer periphery of half of the auxiliary disk 27. It should be understood that the first limiting piece 272 and the second limiting piece 273 can also be disposed on the entire outer periphery of the auxiliary disk 27. Furthermore, although in Figure 7A and Figure 7B In this configuration, the first limiting piece 272 and the second limiting piece 273 are offset circumferentially, but they can also be circumferentially opposite each other. Furthermore, the number of the first limiting piece 272 and the second limiting piece 273 can be set as needed.

[0173] Below, in conjunction with Figure 6A , Figure 7A and Figure 10 A detailed description is provided of one method in which the strap 240 is wound onto the reel 24. In this method, the strap 240 passes through an opening 234 on the circumferential side of the inner cover 23 (see [link to description]). Figure 5 The winding enters the housing 20 of the adjusting device 2, then enters the mounting hole 242 via one of the guide grooves 245 on the reel 24, and then passes through the limiting channel 274 of the auxiliary plate 27. Figure 6A (Auxiliary disc 27 not shown) The strap 240 passes around the portion of the reel 24 with the first limiting piece 272 and the second limiting piece 273, so that the strap 240 passes through the mounting hole 242. Then the strap 240 leaves the mounting hole 242 through another guide groove 245' on the reel 24, and then winds several turns in the winding groove 241 of the reel 24. Finally, it extends out of the housing 20 of the adjusting device 2 through another opening on the opposite circumferential side of the inner cover 23.

[0174] By passing the belt 240 through the limiting channel 274 of the auxiliary disk 27, the tension of the belt 240 can be increased, thereby improving the stability of the belt 240 unwinding from the reel 24.

[0175] It should be understood that the way the strap 240 is wound on the reel 24 is not limited to this. In other embodiments of this disclosure, the auxiliary reel 27 may be omitted, so that the portion of the strap 240 passing through the mounting hole 242 is straight, and thus the strap 240 is in a taut state.

[0176] In addition, Figure 6A In the illustrated embodiment, only one strap 240 is used. However, in other embodiments, two straps 240 may be used, and the reel 24 is provided with two winding grooves 241. One end of each strap 240 is fixed in one of the winding grooves 241, and the other end is fixed to the frame 13 of the stroller 1, so that each strap 240 is wound in the corresponding winding groove 241.

[0177] In another embodiment, the adjustment device 2 according to the present disclosure may not be provided with a spring 25, and the strap 240 may be provided as a component with its own elasticity, so that the strap 240 can drive the reel 24 to rotate through its own elasticity.

[0178] The angle between the backrest 11 and the seat 12 is an obtuse angle. When the user adjusts the backrest 11 of the stroller 1 to pivot towards the upright position, the obtuse angle between the backrest 11 and the seat 12 decreases, making the effective length of the strap 240 required to support the backrest 11 shorter. The reel 24 can then tighten the slack strap 240, allowing the spring 25 to drive the reel 24 to rotate in the winding direction D1. When the backrest 11 is pivoted to the upright position, most of the strap 240 is wound on the reel 24, leaving only a small portion extending out of the reel 24 and fixed to the stroller frame 13, preventing the reel 24 from rotating further in the winding direction D1.

[0179] When the user pivots the backrest 11 of the stroller 1 toward the lying position, the obtuse angle between the backrest 11 and the seat 12 increases, thus increasing the effective length of the strap 240 required to support the backrest 11. When the backrest 11 is pivoted to the lying position, most of the strap 240 unwinds from the reel 24, leaving only a small portion positioned on the reel 24, preventing the reel 24 from rotating further in the unwinding direction D2 and thus preventing further rotation of the backrest 11. Additionally, during the unwinding process of the strap 240 from the reel 24, it drives the reel 24 to rotate in the unwinding direction D2, thereby tightening the spring 25 positioned within the reel 24.

[0180] Therefore, by adjusting the effective length of the strap 240, the pivoting position of the backrest 11 relative to the seat 12 can be controlled. Given the same strap 240 length, the angle of rotation of the reel 24 during the process of fully unwinding and fully winding the strap 240 is related to the diameter of the reel 24. When the diameter of the reel 24 is larger, the angle of rotation is smaller; when the diameter of the reel 24 is smaller, the angle of rotation is larger. Thus, the diameter of the reel 24 can be configured according to actual usage requirements. For example, selecting a reel 24 with a smaller diameter can reduce the overall size of the adjustment device 2.

[0181] In order to enable the backrest 11 to stay in an upright position, a lying position, or a suitable position in between, the reel 24 is provided with a coaxially rotating positioning component, and the adjustment device 2 is also provided with a locking component 100 that cooperates with the positioning component.

[0182] exist Figure 3 , Figure 6B and Figure 11A and Figure 12A In the illustrated embodiment, the positioning element is a unidirectional ratchet 244. However, this disclosure is not limited thereto, and the positioning element can also be a bidirectional gear 246 (see [link to documentation]). Figure 11B and Figure 12B It can be any other mechanism, such as one with a groove or protrusion, as long as it can be positioned after engaging with the locking member 100 and can move after disengaging from the locking member 100.

[0183] In the following description, we will take ratchet 244, whose positioning element is unidirectional, as an example.

[0184] In order to make the ratchet 244 rotate coaxially with the reel 24, in Figure 6B In the illustrated embodiment, ratchet 244 is attached to the second disc 24B of reel 24. However, this disclosure is not limited thereto. For example, instead of providing a separate ratchet 244, the second disc 24B of reel 24 may be made into a ratchet. Of course, other types of positioning elements may be provided on reel 24 in the same manner.

[0185] like Figure 11A As shown, the rotation of ratchet 244 along the unwinding direction D2 is selectively blocked by locking member 100, causing reel 24 to be unable to rotate along the unwinding direction D2; however, the rotation of ratchet 244 along the winding direction D1 is not blocked by locking member 100. Figure 11A As shown, when the ratchet 244 on the reel 24 is blocked from rotating in the unwinding direction D2 by the locking member 100, the reel 24 also cannot rotate in the unwinding direction D2. The adjusting device 2 is in a locked state, and the ratchet 244 can only rotate in the winding direction D1, so that the backrest 11 can only freely pivot towards the upright position to the appropriate position and stay at the appropriate position, but cannot pivot towards the lying position.

[0186] like Figure 12A As shown, when the locking member 100 moves to the unlocked position, so that the rotation of the ratchet 244 on the reel 24 along the unwinding direction D2 is no longer blocked by the locking member 100, the adjusting device 2 is in the unlocked state. The ratchet 244 can rotate both along the winding direction D1 and the unwinding direction D2, allowing the backrest 11 to pivot not only towards the upright position but also towards the lying position. After the backrest 11 has pivoted to the appropriate position towards either the upright or lying position, simply returning the locking member 100 to the position as shown... Figure 11A In the locked position shown, the rotation of the ratchet 244 on the reel 24 along the unwinding direction D2 is again blocked by the locking member 100, and the backrest 11 will remain in the appropriate position. Through the cooperation of the ratchet 244 and the locking member 100, the adjustment device 2 according to this disclosure can achieve one-way locking and one-way unlocking of the pivoting of the backrest 11 toward the lying position.

[0187] It should be understood that the above description is an embodiment in which the rotation of the ratchet 244 along the unwinding direction D2 is selectively blocked by the locking member 100, but this disclosure is not limited thereto.

[0188] In another embodiment (not shown), the ratchet 244 may be reversed; for example, the ratchet 244 may be configured such that the engagement direction of the ratchet teeth is opposite to that of the ratchet teeth. Figure 11A , Figure 12A The engagement shown is oriented in opposite directions, such that rotation along the winding direction D1 is selectively blocked by the locking member 100, but rotation of the ratchet 244 along the unwinding direction D2 is not blocked by the locking member 100. This embodiment is similar to... Figure 11A , Figure 12A The difference in the illustrated embodiment is that when the ratchet 244 on the reel 24 is blocked by the locking member 100 from rotating along the winding direction D1, the reel 24 cannot rotate along the winding direction D1, the adjusting device 2 is in a locked state, and the ratchet 244 can only rotate along the unwinding direction D2, so that the backrest 11 can only freely pivot towards the lying position to a suitable position and stay in that suitable position, but cannot pivot towards the upright position. When the locking member 100 moves to the unlocked position so that the rotation of the ratchet 244 on the reel 24 along the winding direction D1 is no longer blocked by the locking member 100, the adjusting device 2 is in an unlocked state, and the ratchet 244 can rotate both along the winding direction D1 and the unwinding direction D2, so that the backrest 11 can pivot not only towards the upright position to a suitable position, but also towards the lying position to a suitable position. After the backrest 11 is pivoted to the appropriate position, either upright or lying down, the ratchet 244 on the reel 24 will be blocked again by the locking member 100 as soon as the locking member 100 is returned to the locked position, and the backrest 11 will remain in the appropriate position.

[0189] In yet another embodiment, the positioning element is a bidirectional positioning gear 246 (see [link]). Figure 11B and Figure 12B Or other mechanisms with engagement grooves or engagement protrusions, i.e., the positioning member is configured such that rotation of the positioning member in either the winding direction D1 or the unwinding direction D2 is selectively blocked by the locking member 100. This further embodiment differs from the embodiment using ratchet 244 in that, when rotation of the positioning member on the reel 24 is blocked by the locking member 100, such as... Figure 11BAs shown, the reel 24 cannot rotate in either the winding direction D1 or the unwinding direction D2, and the adjusting device 2 is in a locked state. When the locking member 100 moves to the unlocking position so that the rotation of the positioning member on the reel 24 is no longer blocked by the locking member 100, as... Figure 12B As shown, when the adjusting device 2 is in the unlocked state, the positioning member can rotate both along the winding direction D1 and the unwinding direction D2, allowing the backrest 11 to pivot not only towards the upright position but also towards the lying position. After the backrest 11 has pivoted to the appropriate position towards either the upright or lying position, simply returning the locking member 100 to the locked position, as shown... Figure 11B As shown, the rotation of the positioning element on the reel 24 is blocked again by the locking element 100, and the backrest 11 will remain in the appropriate position.

[0190] The locking member 100 is configured to move between a locked position and an unlocked position. In the locked position, the locking member 100 prevents pivoting against the back of 11; in the unlocked position, the locking member 100 does not prevent pivoting against the back of 11.

[0191] In the embodiment shown in the figure, the movement of the locking member 100 is a pivoting motion. However, the movement of the locking member 100 can also be a sliding motion, or a combination of pivoting and sliding motions.

[0192] Specifically, such as Figure 11A and Figure 12A As shown, the connecting side 101 of the locking member 100 is pivotally connected to the connecting portion 232 on the inner cover 23, so that the free side 102 of the locking member 100 can pivot relative to the connecting portion 232. Figure 11A and Figure 12A Schematic diagrams are shown of the locking member 100 in the locked position and the unlocked position, respectively. Figure 11A As shown, when the free side 102 of the locking member 100 pivots to the locked position, the engaging portion 103 of the free side 102 of the locking member 100 engages with the ratchet teeth on the ratchet 244, thereby preventing the ratchet 244 from rotating in the unwinding direction D2. Figure 12A As shown, when the free side 102 of the locking member 100 pivots to the unlock position, the engaging part 103 of the locking member 100 disengages from the ratchet teeth on the ratchet 244, thereby not obstructing the ratchet 244 from rotating in the unwinding direction D2.

[0193] Of course, the locking member 100 according to this disclosure is not limited to this. The locking member 100 can also be configured to slide up and down along the slide rail (not shown) on the inner shell 23 so that the engaging part 103 of the locking member 100 can engage or disengage with the ratchet teeth on the ratchet 244. In this case, the movement of the locking member 100 is a sliding movement.

[0194] like Figure 11A and Figure 12A As shown, the adjusting device 2 may include an elastic element 28, which is configured to drive the locking element 100 to a locked position, thereby causing the locking element 100 to tend to block the ratchet 244 from rotating along the unwinding direction D2. Figure 11A and Figure 12A In the embodiment shown, the elastic element 28 is a torsion spring arranged around the connecting side 101 of the locking element 100. One end 281 of the torsion spring abuts against the inner upper wall of the inner shell 23, and the other end 282 is connected to the protrusion 104 in the middle of the locking element 100.

[0195] Of course, the elastic element 28 can also take the form of a tension spring, compression spring, elastic rope or elastic body, as long as it can drive the locking element 100 to the locking position.

[0196] When the positioning element is a unidirectional ratchet 244, when the user adjusts the backrest 11 of the stroller 1 to pivot towards the lying position, the reel 24 will rotate in the unwinding direction D2. However, the locking element 100 tends to block the ratchet 244 and the reel 24 from rotating in the unwinding direction D2 under the elastic force of the elastic element 28. Therefore, the user needs to first operate the locking element 100 to move it to the unlocked position and keep the locking element 100 in the unlocked position (that is, to change the adjustment device 2 from the locked state to the unlocked state and keep it in the unlocked state) before pulling the backrest 11 of the stroller 1 to pivot towards the lying position.

[0197] Release mechanism

[0198] To facilitate user operation, this disclosure proposes a release mechanism for releasing the adjustment device 2 to the release state, thereby releasing the positioning of the backrest 11 and enabling the backrest 11 to pivot.

[0199] The unlocking mechanism can be used to release the relative positioning between the first component 11 and the second component 12. It includes a locking member 100, which is configured to move between a locked position and an unlocked position. In the locked position, the locking member 100 blocks the relative movement between the first component and the second component. In the unlocked position, the locking member 100 does not block the relative movement between the first component and the second component.

[0200] To facilitate user operation of the locking member 100, in one embodiment, the unlocking mechanism may further include an operating member configured to directly or indirectly drive the locking member 100 to the unlocking position under the action of an external force. Here, "directly" means that the operating member directly contacts and acts on the locking member 100. "Indirectly" means that the operating member does not directly contact the locking member 100, but the force is transmitted between them through other components.

[0201] In one embodiment, the unlocking mechanism may include a driving member 200, with a first end 201 connected to the locking member 100 and a second end 202 connected to an operating member. The operating member is configured to drive the locking member 100 to the unlocking position via the driving member 200 under the action of an external force. The driving member 200 allows the locking member 100 and the operating member to be separated by a certain distance, thereby allowing for more flexible placement of the operating member.

[0202] Of course, the non-disclosure is not limited to this. In another embodiment, the unlocking mechanism may not include the operating member or the driving member 200, and the user may directly apply external force to the locking member 100 to move the locking member 100 to the unlocking position.

[0203] The operating element can be a handle 300 that drives the drive element 200 to move by being pulled (see...). Figure 2 and Figure 3 Alternatively, a sliding handle 300 can be used to drive the moving component 200 by sliding on the fixed seat 500 (see [reference]). Figures 13 to 19 ).

[0204] For ease of description, the following description will be based on the accompanying drawings, using a sliding handle 300” as the operating element, a one-way positioning ratchet 244 as the positioning element, and a one-way release mechanism that only releases when the pivoting of the backrest 11 towards the lying position is blocked.

[0205] like Figures 13 to 24 As shown, in this embodiment of the unlocking mechanism, the driving member 200 is a flexible member. The first end 201 of the driving member 200 is connected to the locking member 100, and the second end 202 of the driving member 200 is connected to the slide handle 300". The slide handle 300 and the driving member 200 can be two separate components or a single integrally formed component. The slide handle 300 drives the driving member 200 to move, thereby driving the locking member 100 to the unlocking position.

[0206] The drive component 200 can be a flexible member capable of withstanding tensile forces, such as webbing, rope, or wire, but is not limited to these.

[0207] In order for the drive member 200 to enter from the outside of the adjusting device 2 to connect with the locking member 100, the drive member 200 can pass through the through hole 233 on the inner cover 23 (see Figure 14 The through hole 233 is preferably formed on the inner cover 23 at a position corresponding to the locking member 100, so that the drive member 200 passes through the through hole 233 and connects with the locking member 100.

[0208] exist Figures 13 to 19In the illustrated embodiment, the adjusting device 2 and the fixed base 500 are two separate components. The slide 300” is connected to the flexible drive member 200 and is configured to drive the drive member 200 to move, thereby driving the locking member 100 to the unlocked position by means of the drive member 200, so that the adjusting device 2 is in the unlocked state.

[0209] exist Figures 13 to 19 In the illustrated embodiment, the slide handle 300” is slidably mounted on the fixed base 500, which is mounted on the backrest 11 via a fixing pin 600. Furthermore, the slide handle 300” is correspondingly provided with an elongated groove 303” through which the fixing pin 600 passes. The groove 303” slides relative to the fixing pin 600, thus limiting the sliding of the slide handle 300” relative to the fixed base 500 to the range of the groove 303”, thereby preventing the slide handle 300” from detaching from the fixed base 500.

[0210] exist Figures 13 to 19 In the illustrated embodiment, a return spring 504 is provided between the fixed base 500 and the slide handle 300”, the return spring 504 being configured to drive the slide handle 300” back to the initial position of the undriven member 200. Although in this embodiment the return spring 504 is a compression spring disposed in the slide groove 303”, this disclosure is not limited thereto; the return spring 504 may be a tension spring, a torsion spring, or other elastic member, and the return spring 504 may be disposed in other suitable positions capable of driving the slide handle 300” back to the initial position.

[0211] To facilitate user operation of slider 300", Figures 13 to 19 In the embodiment shown, the slide 300” can be designed to have a horizontally extending (i.e., an operating force-applying part) 304”, which is in the shape of a trigger.

[0212] When the user is about to adjust the angle of the backrest 11 of the stroller 1, they can first hook their finger on the operating force application part 304 of the sliding handle 300” and apply external force to the operating force application part 304” to make the sliding handle 300” slide relative to the fixed seat 500. The sliding handle 300” drives the locking part 100 of the adjustment device 2 to move to the unlocked position via the drive member 200, so the adjustment device 2 becomes unlocked. Then the backrest 11 can be tilted to change its angle (the backrest 11 is not limited to pivoting).

[0213] Safety lock components of the release mechanism

[0214] In one scenario, if the positioning element on the reel 24 of the adjustment device 2 is a one-way ratchet 244, then when the stroller 1 equipped with this adjustment device 2 travels over uneven or obstructed ground, it will be jolted by the impact force of the ground, and the backrest 11 of the stroller 1 may skip its posts. This is because the ratchet 244 and the reel 24 it is on vibrate with the stroller 1. During this process, the rotation of the ratchet 244 along the winding direction D1 is not blocked by the locking element 100, and the spring 25 inside the reel 24 tends to cause the ratchet 244 and the reel 24 it is on to rotate along the winding direction D1. Therefore, the reel 24 may rotate along the winding direction D1 due to vibration and wind up the strap 240. As a result, the effective length of the strap 240 required to support the backrest 11 becomes shorter, causing the backrest 11 of the stroller 1 to move towards an upright position, resulting in the backrest 11 skipping its posts. This may pose a potential safety hazard and frighten the infant.

[0215] The backrest 11 of the stroller 1 may move towards an upright position due to automatic shifting, so that the angle between it and the seat 12 is less than 150 degrees. This is not good for infants aged 0-6 months. Therefore, it is necessary to overcome the problem of the backrest 11 automatically shifting.

[0216] In another scenario, the user may misoperate the lever 300 or slide 300”, causing the adjustment device 2 to unexpectedly enter the unlocked state, thus posing an unexpected danger.

[0217] To overcome these problems and ensure that the relative positioning between the two components can be reliably maintained or released, the unlocking mechanism according to this disclosure may further include a safety lock member S100, which is configured to move between a safety locked position and a safety unlocking position. In the safety locked position, the safety lock member S100 blocks the relative movement between the first component 11 and the second component 12. When the locking member 100 is in the unlocking position and the safety lock member S100 is in the safety unlocking position, the first component 11 and the second component 12 can move relative to each other.

[0218] In the unlocking mechanism according to this disclosure, the double locking of the locking member 100 and the safety lock member S100 ensures that even if one of them is accidentally unlocked, the other can remain locked, thereby effectively preventing the adjusting device 2 from accidentally becoming unlocked, and thus preventing accidental relative movement between the first member 11 and the second member 12. This avoids the problem of the back (i.e., the first member) 11 shifting or user misoperation.

[0219] Figures 13 to 36An embodiment of an unlocking mechanism provided with a locking member 100 and a safety lock member S100 is shown. Similar to the working principle of the aforementioned locking member 100, the safety lock member S100 can block or not block the rotation of the reel 24 in the adjusting device 2, thereby blocking or not blocking the relative movement between the first member 11 and the second member 12.

[0220] Specifically, such as Figure 14 As shown, the adjusting device 2 including the unlocking mechanism may include a first outer cover 21, a second outer cover 22, and an inner cover 23 located between the first outer cover 21 and the second outer cover 22. Wherein, as Figure 2 and Figure 3 As shown, the adjusting device 2 can be fixed to the first member 11 by using fasteners, such as screws, which sequentially pass through the connector 26, the backing plate against (i.e., the first member) 11, and the through holes in the second outer cover 22 and are screwed onto the threaded posts on the inner cover 23 and the first outer cover 21. However, this disclosure is not limited thereto. In another embodiment, two or all three of the first outer cover 21, the second outer cover 22, and the inner cover 23 may be integrally formed components. In yet another embodiment, the first outer cover 21 may be omitted.

[0221] The adjusting device 2 may also include a reel 24, which is rotatably disposed between the inner cover 23 and the second outer cover 22 to supply the strap 240 (for simplicity, Figures 13 to 36 A strap 240 (not shown) is wound around it, with both ends of the strap 240 extending outside the adjusting device 2 and fixed relative to the second member 12 (e.g., as shown). Figure 1C As shown, the frame 13 is fixed to the stroller 1. As previously described, the reel 24 winds or unwinds a portion of the strap 240 by rotating itself, thereby changing the effective length of the strap 240. The increase or decrease in the effective length of the strap 240 can adjust the position of the first member 11 relative to the second member 12.

[0222] In order for the safety lock component S100 to block or not block the rotation of the reel 24, such as Figure 14 , Figure 19 , Figures 21 to 24 as well as Figure 34 , Figure 36 As shown, the reel 24 is provided with multiple reel engaging structures 248, and the safety lock component S100 is provided with a safety lock engaging structure S101 (see...). Figure 20 and Figure 32 ).

[0223] When the safety lock component S100 moves to the safety locked position, such as Figure 21 and Figure 23 as well as Figure 34As shown, the safety lock engagement structure S101 engages with one of the reel engagement structures 248 to prevent the reel 24 from rotating.

[0224] When the safety lock component S100 moves to the safety release position, such as Figure 22 and Figure 24 as well as Figure 36 As shown, the safety lock engagement structure S101 disengages from the reel engagement structure 248 to prevent obstruction of the rotation of the reel 24.

[0225] exist Figure 14 , Figure 19 , Figures 21 to 24 as well as Figure 34 , Figure 36 In the embodiment shown, the reel 24 is provided with a ratchet 244 that rotates coaxially, and the multiple reel engagement structures 248 are internal teeth provided on the ratchet 244.

[0226] Of course, this disclosure is not limited to this.

[0227] A coaxially rotating gear 246 can also be installed on the reel 24 (see...) Figure 11B and Figure 12B The multiple reel engagement structure 248 is an internal tooth set on the gear 246.

[0228] Alternatively, the multiple reel engagement structures 248 may be the teeth of another ratchet or gear that rotates coaxially on the reel 24, or they may be grooves or protrusions on the reel 24.

[0229] To facilitate the operation of the safety lock component S100, such as Figures 14 to 19 as well as Figure 31 , Figure 34 , Figure 36 As shown, the adjusting device 2 may be provided with a safety lock elastic element S102, which is configured to apply an elastic force to the safety lock member S100 to drive the safety lock engaging structure S101 to engage with one of the reel engaging structures 248, thereby tending to make the safety lock member S100 block the rotation of the reel 24.

[0230] exist Figures 14 to 19 as well as Figure 31 , Figure 34 , Figure 36 In the embodiment shown, the safety lock elastic element S102 is a compression spring.

[0231] In order to ensure that the compression spring, which is the elastic element of the safety lock S102, acts on the safety lock component S100 in the direction that drives the safety lock engagement structure S101 to engage with the reel engagement structure 248, the safety lock component S100 may be provided with an elastic element fixing part S103 for the safety lock elastic element S102 to be sleeved on, thereby properly positioning the safety lock elastic element S102.

[0232] exist Figures 14 to 19 as well as Figure 31 In the embodiment shown, the movement of the safety lock member S100 between the safety locked position and the safety released position is a vertical movement. In order to prevent the safety lock member S100 from deviating, the inner cover 23 is provided with a safety lock guide part 23A to guide the safety lock member S100 to move therein.

[0233] It should be understood that the safety lock guide 23A may also be located on the first outer cover 21 or the second outer cover 22.

[0234] To facilitate operation of the safety lock component S100 by the user, the release mechanism may include a safety lock operating component that can be operated to move the safety lock component S100 to the safety release position.

[0235] Specifically, in Figures 13 to 28 In the illustrated embodiment, the safety lock operating component is a rotary knob S300. Figures 29 to 36 In the illustrated embodiment, the safety lock operating component is a push button S300'. Of course, the safety lock operating component can also be other components, as long as they can be operated to move the safety lock component S100 to the safety release position.

[0236] Safety lock operating components S300 and S300' are movably disposed on the first component 11 and can move between an operating component locking position and an operating component unlocking position. In the operating component locking position, safety lock operating components S300 and S300' allow the safety lock component S100 to remain in the safety locked position. In the operating component unlocking position, safety lock operating components S300 and S300' drive the safety lock component S100 to move to the safety unlocking position.

[0237] It should be understood that the safety lock operating components S300 and S300' can also be installed on the second component 12 or other components.

[0238] In one embodiment, the release mechanism may include a safety lock traction member S200, one end of which is connected to the safety lock component S100, and the other end of which is connected to the safety lock operating components S300 and S300', such that the safety lock operating components S300 and S300' can drive the safety lock component S100 via the safety lock traction member S200. The safety lock traction member S200 allows the safety lock component S100 and the safety lock operating components S300 and S300' to be separated by a certain distance, thereby allowing for more flexible arrangement of the safety lock operating components S300 and S300'.

[0239] exist Figures 14 to 28 as well as Figures 29 to 36 In the illustrated embodiment, the safety lock traction member S200 includes a traction line S220 and a sheath S210 therein for the traction line S220 to slide.

[0240] It should be understood that the safety lock traction component S200 can be implemented in other forms. For example, the safety lock traction component S200 can use a separate traction line S220 without a sheath S210, or it can use a rod-shaped component, etc.

[0241] The traction line S220 can be a flexible member capable of withstanding tensile forces, such as webbing, rope, or wire, but is not limited to these.

[0242] In one embodiment, there may be at least two sheaths S210, located near both ends of the safety lock traction member S200 and fixed thereto guide the traction direction of the traction line S220.

[0243] It should be understood that the sheath S210 can also be a single tubular component that surrounds most of the traction line S220, with both ends of the tubular component fixed to guide the traction direction of the traction line S220.

[0244] like Figures 14 to 16 and Figure 31 As shown, a sheath fixing part 23B can be provided on the inner cover 23 for fixing the sheath S210 of the safety lock traction member S200 connected to one end of the safety lock member S100.

[0245] If necessary, a channel for the traction line S220 to pass through can be provided on the inner cover 23.

[0246] To facilitate the connection of the traction line S220 to the safety lock component S100 and / or the safety lock operating components S300, S300', such as Figure 25 As shown, each end of the traction line S220 can be provided with a traction line head S221. The diameter of the traction line head S221 is larger than the diameter of the traction line S220.

[0247] Correspondingly, such as Figure 14 , Figure 16 , Figure 26 and Figure 31 As shown, at least one of the safety lock component S100 and the safety lock operating components S300 and S300' may be provided with a traction member fixing part S230. The traction member fixing part S230 can accommodate the traction wire head S221 and has a traction member channel S240 on its side wall. The width of the traction member channel S240 is smaller than the diameter of the traction wire head S221 but larger than the diameter of the traction wire S220, so as to allow the traction wire S220 connected to the traction wire head S221 to extend out of the traction member fixing part S230 through the traction member channel S240, thereby realizing the connection between the traction wire S220 and the safety lock component S100 and / or the safety lock operating components S300 and S300'.

[0248] In an embodiment where the traction line S220 is a single line, as follows: Figures 14 to 28 As shown, a traction member fixing part S230 can be correspondingly provided on the safety lock component S100. In an embodiment where the traction line S220 has two strands, as... Figures 29 to 36 As shown, two traction member fixing parts S230 can be correspondingly provided on the safety lock component S100.

[0249] exist Figure 14 In the embodiment shown, since the elastic element fixing part S103 is located in the extension direction of the traction element channel S240, the traction element channel S240 extends through the elastic element fixing part S103 so that the traction line S220 can extend out of the traction element fixing part S230.

[0250] Of course, the non-disclosure is not limited to this. In another embodiment, the release mechanism may not include the safety lock operating member S300, S300' or the safety lock traction member S200, and the user may directly apply external force to the safety lock member S100 to move the safety lock member S100 to the release position.

[0251] The following describes in detail, with reference to the accompanying drawings, two embodiments of the safety lock operating components S300 and S300' of the release mechanism.

[0252] First implementation of the safety lock operating mechanism

[0253] The first implementation of the safety lock operating mechanism is as follows: Figures 13 to 28 The rotary knob S300 is shown.

[0254] In one embodiment, the rotary knob S300 is rotatably mounted on the fixed base 500, which is connected to the first component 11.

[0255] It should be understood that the rotary knob S300 can also be rotatably mounted directly on the first component 11, without having to be mounted on the fixed base 500.

[0256] In addition, although Figures 13 to 28 The rotary knob S300 shown is pivotal, but it can also be a self-rotating knob. One end of the safety lock traction member S200 can be wrapped around the knob, so that the safety lock traction member S200 is driven by the rotation of the knob.

[0257] exist Figure 25 In the embodiment shown, the top of the fixed base 500 is provided with a fixed pivot shaft 510, and the rotary knob S300 is pivotally connected to the fixed pivot shaft 510, so that the user can apply force to the rotary knob S300 to make the rotary knob S300 pivot around the fixed pivot shaft 510 between the operating member locking position and the operating member unlocking position, thereby driving the safety lock traction member S200.

[0258] To facilitate the connection of the traction line S220 to the rotary knob S300, Figure 26 In the embodiment shown, the rotary knob S300 may be provided with a traction member fixing part S230 and a traction member channel S240. The traction member fixing part S230 can accommodate the traction wire head S221, and the traction member channel S240 allows the traction wire S220 to pass through it.

[0259] The sheath S210 at one end of the safety lock traction component S200 connected to the rotary knob S300 can be fixed to the fixing base 500.

[0260] The fixed base 500 may be provided with a movable safety lock retainer S310, which is configured to hold the rotary knob S300 in the operation unlock position.

[0261] To facilitate the movement of the safety lock retainer S310, such as Figure 25 As shown, a retainer receiving portion 520 can be provided on the fixed base 500, in which the safety lock retainer S310 slides.

[0262] Of course, the safety lock retainer S310 can also be configured to pivot on the fixed base 500.

[0263] exist Figure 25 , Figure 27 and Figure 28 In the illustrated embodiment, the safety lock retainer S310 is provided with a retainer blocking structure S312, and the rotary knob S300 is provided with a rotary knob blocking structure S301. The rotary knob blocking structure S301 and the retainer blocking structure S312 can engage to hold the rotary knob S300 in the unlocked position of the operating member. Figure 28 As shown.

[0264] like Figure 27 and Figure 28As shown, the rotary knob blocking structure S301 can be stepped, and the retaining member blocking structure S312 can be a protrusion that mates with the step (see...). Figure 25 This allows the engagement of the two parts to prevent the pivoting of the rotary knob S300.

[0265] In order to keep the rotary knob blocking structure S301 engaged with the retaining member blocking structure S312, the release mechanism is also provided with a retaining member elastic body S311, which is configured to drive the safety lock retaining member S310 against the rotary knob S300.

[0266] exist Figure 25 In the embodiment shown, the retainer elastic body S311 may be a compression spring provided in the retainer receiving portion 520, so as to apply an elastic force to the safety lock retainer S310.

[0267] exist Figure 25 , Figure 27 and Figure 28 In the illustrated embodiment, the rotary knob S300 may also be provided with another rotary knob blocking structure S302, which can engage with the retaining member blocking structure S312 to hold the rotary knob S300 in the operating member locked position, such as... Figure 27 As shown.

[0268] Of course, this disclosure is not limited to this.

[0269] The safety lock retainer S310 can have other structures. For example, the safety lock retainer S310 can be a pin, one end of which can be inserted into a recess on the rotary knob S300 to hold the rotary knob S300 in the unlocked or locked position of the operating element.

[0270] When the user does not apply force to the rotary knob S300, such as Figure 21 , Figure 22 and Figure 27 As shown, the rotary knob S300 is in the operating element locked position, and the safety lock component S100 is in the safety locked position such that its safety lock engagement structure S101 engages with one of the reel engagement structures 248 on the ratchet 244 (see...). Figure 22 Therefore, the ratchet 244 is blocked and cannot rotate, and the adjusting device 2 is in a locked state. Furthermore, the safety lock elastic element S102 holds the safety lock member S100 in the safe locked position, and the retaining member blocking structure S312 of the safety lock retaining member S310 engages with another rotating button blocking structure S302 on the rotating button S300 to hold the rotating button S300 in the operating member locked position (see...). Figure 27 ).

[0271] When a user applies force to the rotary knob S300, this force must overcome the elastic forces of the safety lock elastic element S102 and the retaining element elastic body S311 to pivot the rotary knob S300 to the operating element release position. Figure 23 , Figure 24 and Figure 28 As shown. The movement of the rotary knob S300 is transmitted to the safety lock member S100 via the safety lock traction member S200, causing the safety lock member S100 to move to the safety release position. At this point, the safety lock engagement structure S101 of the safety lock member S100 disengages from the reel engagement structure 248 (see...). Figure 24 Therefore, ratchet 244 is not blocked by safety lock member S100. At this time, if locking member 100 is in the unlocked position and does not block ratchet 244, ratchet 244 and its reel 24 can rotate, and adjusting device 2 is in the unlocked state. When rotary knob S300 pivots to the unlocked position of operating member, the retaining member blocking structure S312 of safety lock retaining member S310 engages with the rotary knob blocking structure S301 on rotary knob S300 to hold rotary knob S300 in the unlocked position of operating member (see...). Figure 28 ).

[0272] If the user no longer applies force to the rotary knob S300, the rotary knob S300 will remain in the unlocked position (see [link]). Figure 28 ).

[0273] Subsequently, when the user applies a force in the opposite direction to the rotary knob S300, this force only needs to overcome the elastic force of the retaining elastic body S311 to pivot the rotary knob S300 toward the operating member locking position, until the retaining member blocking structure S312 of the safety lock retaining member S310 engages with another rotary knob blocking structure S302 on the rotary knob S300 to hold the rotary knob S300 in the operating member locking position, as shown. Figure 27 As shown.

[0274] At the same time, the pivoting of the rotary knob S300 toward the operating member locking position causes the safety lock traction member S200 to no longer exert force on the safety lock member S100. Then, the safety lock member S100 moves toward the safety locking position under the elastic force of the safety lock elastic member S102 until the safety lock engaging structure S101 engages with one of the reel engaging structures 248, and the adjusting device 2 returns to the locked state.

[0275] Second implementation of the safety lock operating mechanism

[0276] The second implementation of the safety lock operating mechanism is as follows: Figures 29 to 36 The push button S300' shown is slidably mounted on the first component 11 and is configured to drive the safety lock component S100 via the safety lock traction component S200.

[0277] It should be understood that, although Figures 29 to 36 The push button S300' shown is a button that slides in a direction perpendicular to the extension direction of the first member 11, but the push button S300' can also slide in the extension direction of the first member 11 to drive the safety lock traction member S200.

[0278] In addition, Figures 29 to 36 In the illustrated embodiment, there are two push buttons S300', and correspondingly, there are also two traction lines S220. Furthermore, two traction fixing parts S230 are also provided on the safety lock component S100. The two traction lines S220 pull the same safety lock component S100, which makes the movement of the safety lock component S100 more stable.

[0279] However, it should be understood that in the second embodiment of the safety lock operating component, only one push button S300', one traction line S220 and one traction member fixing part S230 can be provided.

[0280] To facilitate the sliding of the push button S300' relative to the first component 11, Figures 30 to 36 In the embodiment shown, a push button base S302' for sliding of the push button S300' may be provided on the first component 11.

[0281] exist Figure 33 and Figure 35 In the illustrated embodiment, a push button transmission member S310' is provided between the push button S300' and the safety lock traction member S200, which is configured to transmit the sliding of the push button S300' along a first direction (i.e., the direction perpendicular to the extension direction of the first member 11) to the other end of the safety lock traction member S200 moving along a second direction (i.e., the direction parallel to the extension direction of the first member 11).

[0282] It should be understood that the first direction and the second direction can be the same.

[0283] In this embodiment, the push button S300' may be provided with a push button inclined surface S301', and the push button transmission component S310' may be provided with a transmission inclined surface S311'. The push button inclined surface S301' and the transmission inclined surface S311' abut against each other, and the inclination direction of both is inclined to the moving direction of the push button S300'.

[0284] To facilitate the connection of the traction line S220 of the safety lock traction component S200 to the push button transmission component S310', Figure 33 and Figure 35In the embodiment shown, the push-button transmission member S310' may be provided with a traction member fixing part S230 and a traction member channel S240. The traction member fixing part S230 can accommodate the traction wire head S221, and the traction member channel S240 allows the traction wire S220 to pass through it.

[0285] like Figure 33 and Figure 35 As shown, the sheath S210 of the safety lock traction member S200 connected to the push button S300' can be fixed to the push button base S302'.

[0286] When the user does not apply force to the push button S300', such as Figure 33 and Figure 34 As shown, push button S300' is in the operating element locked position, and push button inclined surface S301' is located above transmission inclined surface S311' (see...). Figure 33 The safety lock component S100 is in the safety locked position such that its safety lock engagement structure S101 engages with one of the reel engagement structures 248 on the ratchet 244 (see [link]). Figure 34 This prevents the ratchet 244 from rotating, thus locking the adjusting device 2. Furthermore, the safety lock elastic element S102 holds the safety lock component S100 in the safe locked position.

[0287] When the user presses the push button S300' and slides it toward the first member 11, the push button inclined surface S301' abuts against the transmission inclined surface S311'. The two interact to cause the push button transmission member S310' to slide in a first direction parallel to the extension direction of the first member 11. Thus, the push button transmission member S310' drives the safety lock member S100 via the safety lock traction member S200.

[0288] like Figure 35 and Figure 36 As shown, when the push button S300' slides to the unlocked position of the operating element, the push button ramp S301' slides to the lower part of the transmission ramp S311' (see...). Figure 35 The movement of push button S300' is transmitted to safety lock member S100 via safety lock traction member S200, causing safety lock member S100 to move to the safety release position. At this point, the safety lock engagement structure S101 of safety lock member S100 disengages from the reel engagement structure 248 (see [link]). Figure 36 Therefore, ratchet 244 is not blocked by safety lock member S100. At this time, if locking member 100 is in the unlocked position and does not block ratchet 244, ratchet 244 and the reel 24 it is located on can rotate, and adjustment device 2 is in the unlocked state.

[0289] When the user no longer applies force to the push button S300', the safety lock member S100 moves to the safety locked position under the elastic force of the safety lock elastic member S102, causing the safety lock engaging structure S101 to engage with one of the reel engaging structures 248, and the adjusting device 2 returns to the locked state. Simultaneously, the movement of the safety lock member S100 drives the push button transmission member S310' to slide in a second direction opposite to the first direction via the safety lock traction member S200. Thus, the transmission ramp S311' of the push button transmission member S310' abuts against the push ramp S301' of the push button S300', and the interaction between the two causes the push button S300' to return to the operating member locked position.

[0290] Since the features of this disclosure can be embodied in various forms without departing from the nature of this disclosure, it should also be understood that the above embodiments are not limited to any of the details described above, and unless otherwise stated, should be broadly interpreted as falling within the scope defined by the appended claims. Therefore, all modifications and alterations falling within the scope and limits of the claims or equivalents thereof should be covered by the appended claims.

Claims

1. A release mechanism capable of relieving the relative positioning between a first member and a second member, characterized in that, The release mechanism comprises: a locking member arranged to be movable between a locking position and a release position, in the locking position, the locking member blocks relative movement between the first member and the second member, a safety locking member arranged to be movable between a safety locking position and a safety release position, in the safety locking position, the safety locking member blocks relative movement between the first member and the second member, wherein, when the locking member is in the release position and the safety locking member is in the safety release position, the first member and the second member are capable of relative movement.

2. The release mechanism of claim 1, wherein, The release mechanism comprises a safety locking operating member, which is operable to drive the safety locking member to move to the safety release position.

3. The release mechanism of claim 2, wherein, The release mechanism further comprises a safety locking traction member, one end of which is connected to the safety locking member, and the other end of which is connected to the safety locking operating member, so that the safety locking operating member drives the safety locking member via the safety locking traction member.

4. The release mechanism according to claim 2, wherein: the safety locking operating member is movable between an operating member locking position and an operating member release position, in the operating member locking position, the safety locking operating member allows the safety locking member to remain in the safety locking position, and in the operating member release position, the safety locking operating member drives the safety locking member to move to the safety release position, the safety locking operating member is a rotary knob rotatably mounted on a fixed seat, the fixed seat being connected to the first member.

5. The release mechanism of claim 4, wherein, The fixed seat is provided with a safety locking retaining member capable of movement, which is arranged to retain the rotary knob in the operating member release position.

6. The release mechanism of claim 3, wherein, The safety locking operating member is a push knob slidably mounted on the first member, which is arranged to drive the safety locking member via the safety locking traction member.

7. The release mechanism of claim 6, wherein, A push knob transmission member is provided between the push knob and the safety locking traction member, which is arranged to transmit the sliding of the push knob in a first direction to the other end of the safety locking traction member moving in a second direction, wherein the first direction and the second direction are the same or different.

8. An adjustment device capable of adjusting the position of movement of a first member relative to a second member, characterised in that, The adjustment device is provided on the first member and comprises the release mechanism according to any one of claims 1 to 7.

9. The adjustment device of claim 8, wherein The adjustment device comprises: a reel arranged to be rotatable, on which a strap is wound, both ends of the strap extending to the outside of the adjustment device and being fixed relative to the second member, and the effective length of the strap being capable of adjusting the position of the first member relative to the second member, wherein the reel is provided with a plurality of reel engaging structures, and the safety locking member is provided with a safety locking engaging structure, when the safety locking member moves to the safety locking position, the safety locking engaging structure engages with one of the reel engaging structures to block the rotation of the reel.

10. A stroller having a seat, characterized by The stroller is provided with the adjusting device as claimed in claim 8 or 9, wherein the release mechanism of the adjusting device is capable of releasing the adjusting device, the first member is a backrest of the seat, and the second member is a seat part of the seat.

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