Support leg assembly, support leg extension mechanism, and carrier

Abstract

This disclosure discloses a support leg assembly comprising: an indicator positioned at the support end and movable between a first position and a second position to indicate whether the support leg is in contact with a surface; a drive member positioned movably at the contact end; a traction member including a first end connected to the indicator and a second end connected to the contact end; and a retaining sleeve sleeve connected to the traction member and preventing at least a portion of the traction member from bending, wherein when the contact end is in contact with a surface, the drive member drives the traction member to slide against the retaining sleeve, and the traction member further drives the indicator. This disclosure also discloses support legs and carriers.

Description

Technical Field

[0005]

[0001] The present disclosure relates to a support leg assembly, a support leg telescoping mechanism, a finger pinching prevention rotation mechanism, a support leg having a contact indicator mechanism, and a carrier having the support leg.

Background Art

[0002] Generally, a child seat is provided with support legs at the front part of the base of the seat. One end of the support leg is fixed to the base of the child seat, and the other end of the support leg is supported on the floor of the vehicle, whereby the child seat is installed more stably. However, if the support leg does not contact the floor surface stably, there is a risk that the child seat may fall over. Therefore, during use of the support leg, it is necessary to ensure that the support leg contacts the floor surface.

[0003] Currently, commercially available support legs can be telescoped and folded with respect to the base, but the support legs cannot show the user whether the support legs are properly arranged, and there is a potential safety problem that the support legs are misused in a situation where they are not fully extended and do not contact the floor surface stably.

[0004] In a support leg, an internal cable is used to transmit the operation of the contact end of the support leg contacting the floor surface to an indicator at the instruction end, whereby the indicator can provide a contact indication. In such a mechanism, as the support leg contracts or folds, the cable is also wound or folded. When the support leg contracts or folds, there is a problem that due to factors such as the gravity of the cable, the wound part of the cable may approach the contact end. In this way, the contact end directly abuts against the wound part, and as a result, abnormal winding of the cable occurs, and furthermore, the cable directly abuts against the indicator, thus affecting the normal use of the support leg.

[0005] Therefore, there is a need to provide a support leg that can assist in proper winding of the cable, particularly in proper positioning of the wound part of the cable.

[0006] Child car seats are essential carriers for transporting infants or children in various vehicles. Currently, some child car seats have support legs that are supported on the floor inside the vehicle. These support legs can rotate and extend. To facilitate the deployment of the support legs, child car seats may be equipped with an automatic pop-up mechanism, which allows the support legs to be conveniently deployed and made contact with the floor when the user is using the car seat. However, when the support legs are deployed, the force required for rotation and extension of the support legs due to the automatic pop-up mechanism becomes large, which can cause noise and degrade the user experience. At the same time, if the support legs are rotated improperly to a certain angle or extended to a certain position when the user deploys or uses the child car seat, there is a risk of collision with people nearby, posing a certain safety hazard.

[0007] Therefore, there is a need for a child car seat in which the deployment speed of the support legs can be controlled.

[0008] A child safety seat is a device installed on a vehicle seat that restrains the child in the child safety seat with a seat belt. In the event of emergency braking or a collision, the child safety seat can effectively prevent the child from moving rapidly, avoid secondary collisions, reduce harm to the child, provide strong protection and restraint, and ensure the child's safety while riding in the vehicle.

[0009] The support legs of some existing child car seats are either not extendable or have a small extension stroke, resulting in a large packaging volume, which reduces the amount of child car seats that can be loaded into a container and increases transportation costs. Furthermore, even if the support legs of some existing child car seats are extendable, the length of the sliding frame is long, leading to high material costs for the sliding frame. [Overview of the Initiative]

[0010] A support leg assembly used in a child carrier comprises an extendable support leg and a contact indicator mechanism, the support leg having opposing indicator ends and contact ends, the contact indicator mechanism comprising an indicator positioned at the indicator end and movable between a first position and a second position to indicate whether the support leg is in contact with a surface, a drive member movably positioned at the contact end, a traction member having a first end connected to the indicator and a second end connected to the contact end, and a retaining sleeve sleeve sleeve connected to the first end of the traction member to prevent a portion of the traction member from bending, wherein when the contact end is in contact with the surface, the drive member drives the traction member to slide against the retaining sleeve, and the traction member further drives the indicator.

[0011] In one embodiment, the retaining sleeve is positioned near the second end of the traction member.

[0012] In one embodiment, the drive member includes a contact portion that is at least partially exposed from the contact end and extends outside the contact end.

[0013] In one embodiment, the second elastic member is positioned between the drive member and the contact end, and the second elastic member biases the drive member toward the extended position.

[0014] In one embodiment, the drive member includes a shoulder portion extending substantially laterally, and the two contact portions extend vertically from the contact ends at both lateral ends of the shoulder portion. The shoulder portion is provided with a column hole, which may be sleeve-connected to a column at the bottom of the contact ends, and the second elastic member is sleeve-connected to the column. The second elastic member is positioned between the column and the shoulder portion and biases the drive member toward the extended position.

[0015] In one embodiment, the drive member further includes a second housing portion. The second housing portion extends vertically inward from the center of the shoulder portion in the form of a groove and has a shape corresponding to the second end of the retaining sleeve, thereby fixing the second end of the retaining sleeve.

[0016] In one embodiment, the indicator end further includes a first elastic member that contacts the indicator and biases the indicator toward a first position.

[0017] In one embodiment, the first side of the indicator has a first housing for accommodating the first end of the traction member, the second side of the indicator abuts against one end of the first elastic member, the other end of the first elastic member is fixed to the indicator end, and the first side faces the second side.

[0018] In one embodiment, the indicator end is provided with a movable shaft or a slide rail, and the indicator rotates between a first position and a second position via the movable shaft, or slides between a first position and a second position via the slide rail.

[0019] In one embodiment, the indicator includes a first region and a second region. When the contact indicator mechanism is not in contact with the surface, the indicator is in the first position, and the first region is exposed through the hollow portion or transparent window of the contact indicator mechanism. When the contact indicator mechanism is in contact with the surface, the indicator is in the second position, and the second region is exposed through the hollow portion or transparent window. The first region and the second region have different visual effects.

[0020] In one embodiment, the traction member is a steel wire.

[0021] The support leg according to this disclosure includes the contact indicator mechanism, and the support leg has a variable length.

[0022] In one embodiment, the contact indicator mechanism is provided with a position regulating section. The position regulating section is positioned to keep the distance between the position regulating section and the indicator end substantially constant even when the length of the support leg changes, and the traction member bypasses the position regulating section.

[0023] In one embodiment, the winding portion of the traction member sleeve, which is sleeve-connected to the outside of the traction member, bypasses the position regulating portion, and the distance between the winding portion and the indicator end does not substantially change when the length of the support leg changes.

[0024] In one embodiment, the support leg further includes a first tube near the indicator end and a second tube near the contact end that can slide relative to the first tube to adjust the length of the support leg. The position regulating portion is located inside the first tube and at one end away from the indicator end of the first tube.

[0025] The carrier relating to this disclosure includes a base and a seat mounted on the base, and the support legs relating to this disclosure are mounted beneath the base to support the base.

[0026] The carrier according to this disclosure includes a base, a support leg rotatably connected to the base and rotatable relative to the base, and a first buffer mechanism positioned between the base and the support leg and capable of contacting at least one of the base and the support leg, wherein the first buffer mechanism is formed to resist the rotational movement of the support leg relative to the base.

[0027] The carrier according to this disclosure includes a base, a movable bracket slidably connected to the base, support legs connected to the movable bracket, and a second buffer mechanism disposed between the base and the movable bracket and capable of contacting at least one of the base and the movable bracket, wherein the second buffer mechanism is formed to resist the sliding of the movable bracket relative to the base.

[0028] In one embodiment, the carrier further includes a restoring member. The restoring member is connected to the movable bracket and can urge the movable bracket in a sliding direction away from the base.

[0029] In one embodiment, the movable bracket can slide between an extended position and a retracted position, and the second buffer mechanism provides resistance to a part of the movement path of the movable bracket from the retracted position to the extended position.

[0030] In one embodiment, the base includes a fixed bracket, the second buffer mechanism includes a locking member, the fixed bracket is fixed within the base housing of the base, the movable bracket is slidably disposed on the fixed bracket, and the locking member protrudes from the movable bracket.

[0031] In one embodiment, the locking member includes a locking seat, a locking pin, and a driving member. The locking pin can be disposed伸缩ably inside the locking seat and abuts against the fixed bracket, and the driving member is disposed within the locking seat and applies a thrust to the locking pin toward the fixed bracket.

[0032] In one embodiment, a concave groove is formed in the fixed bracket, and the locking pin abuts against the concave groove during the process of the movable bracket sliding relative to the fixed bracket.

[0033] In one embodiment, a locking hole is formed in the fixed bracket, and the locking hole is spaced from the concave groove. When the support leg is in the extended position, the locking pin is located within the locking hole.

[0034] In one embodiment, the second buffer mechanism includes a buffer member. One end of the buffer member is fixed within the base housing, and the buffer member can abut against the locking member and provide resistance to a part of the movement path of the support leg from the retracted position to the extended position.

[0035] In one embodiment, the cushioning member is formed as an elastic sheet, and the elastic sheet has protrusions formed thereon for contacting the locking seat.

[0036] In one embodiment, the projection includes a first surface and a second surface connecting the first surface, the angle between the second surface and the horizontal direction is greater than the angle between the first surface and the horizontal direction, and when the locking member contacts the first surface, the buffer member applies a thrust to the locking member in the direction toward the retracted position, and when the locking member contacts the second surface, the buffer member applies a thrust to the locking member in the direction toward the extended position.

[0037] In one embodiment, the second cushioning mechanism includes a cushioning member. One end of the cushioning member is fixed to a movable bracket, and the other end of the cushioning member is a free end. The free end partially abuts against the base housing, providing resistance to the movement of the movable bracket from a retracted position to an extended position.

[0038] In one embodiment, when the movable bracket is in the extended position, the cushioning member does not come into contact with the base housing.

[0039] In one embodiment, the free end of the buffer member extends upward and toward the extended position.

[0040] In one embodiment, the free end of the buffer member is formed as an arcuate surface.

[0041] In one embodiment, adjacent blocking recesses and blocking protrusions are formed on the inside of the base housing. The free end of the buffer member sequentially contacts the blocking recesses and blocking protrusions as the movable bracket moves from the retracted position to the extended position, thereby receiving increased resistance.

[0042] In one embodiment, during the process in which the movable bracket moves from the retracted position to the extended position, the free end of the cushioning member does not come into contact with the base housing after the free end of the cushioning member no longer comes into contact with the blocking projection.

[0043] In one embodiment, a housing portion is formed at the bottom of the base to house the support legs in a lockable manner.

[0044] In one embodiment, the base housing of the base is provided with a lock button. The lock button can be activated to lock the support legs into the housing, but in the initial state of the carrier, the lock button does not lock the support legs.

[0045] A carrier according to the present disclosure includes a base having a fixed bracket, a movable bracket slidably connected to the fixed bracket, a support leg connected to the movable bracket, a first buffer mechanism disposed between the movable bracket and the support leg and capable of contacting at least one of the movable bracket and the support leg, a second buffer mechanism disposed between the base and the movable bracket and capable of contacting at least one of the base and the movable bracket, and a restoring member connected to the movable bracket and capable of biasing the movable bracket in a sliding direction away from the base, wherein the support leg is rotatable between a folded position and an extended position, the first buffer mechanism includes a buffer portion which provides resistance to a portion of the rotation path of the support leg from the folded position to the extended position, the movable bracket is slidable between an extended position and a retracted position, and the second buffer mechanism provides resistance to a portion of the movement path of the movable bracket from the retracted position to the extended position.

[0046] The support leg extension mechanism according to the present disclosure is suitable for a carrier and includes a support leg, a first sliding frame connected to the body of the carrier, a second sliding frame connected to the support leg, and connecting elements movably connected to the first sliding frame and the second sliding frame, respectively, wherein the first sliding frame and the second sliding frame slide-fit to each other via the connecting elements to adjust the length of the distance between the support leg and the body. The adjustable distance range between the body and the support leg is greater than the length of the first sliding frame or the second sliding frame in the sliding direction.

[0047] In one embodiment, when the first sliding frame and the second sliding frame slide against each other, the sliding pin can be positioned at any location in the overlapping portion of the first sliding frame and the second sliding frame. The adjustable distance between the body and the support leg is greater than the length of either the first sliding groove or the second sliding groove in the sliding direction.

[0048] In one embodiment, the connecting element is slidably connected to the first sliding frame and the second sliding frame, respectively. When the support leg extension mechanism is switched from a retracted state to an extended state, the sliding direction of the connecting element relative to the first sliding frame is opposite to the sliding direction of the connecting element relative to the second sliding frame.

[0049] In one embodiment, the locking member includes an elastic member, and the elastic force of the elastic member biases the locking projection toward the locking hole.

[0050] In one embodiment, the locking projection and the unlocking portion are formed as an integrated body.

[0051] In one embodiment, the first end of the integrated body is the unlocking portion. The unlocking portion is formed as an unlocking button. The second end of the integrated body, opposite the first end, is formed as the locking projection. The integrated body is rotatably connected to a second sliding frame or a first sliding frame, so that when the unlocking portion is pressed, the locking projection releases cooperation with at least one of the first locking hole and the second locking hole.

[0052] In one embodiment, the second sliding frame is sleeve-connected to the inside of the first sliding frame and can slide along the first sliding frame.

[0053] The finger-pinch prevention rotating mechanism according to this disclosure is suitable for a child car seat. The child car seat includes a main body and support legs, the main body being provided with a connecting portion that is rotatably connected to the support legs. The support legs have an extended position away from the main body and a folded position close to the main body. The finger-pinch prevention rotating mechanism includes a pinch prevention cover that is rotatably connected to the connecting portion and a mounting seat that is fixedly connected to the support legs. When the support legs rotate from an extended state to a folded state, the mounting seat rotates the pinch prevention cover to cover the gap between the support legs and the connecting portion.

[0054] In one embodiment, a contact bar is provided on the mounting base, and a stepped portion is provided on the pinch-prevention cover. The contact bar protrudes from the support leg. When the support leg rotates from the extended position to the folded position, the contact bar pulls on the stepped portion of the pinch-prevention cover, causing the pinch-prevention cover to rotate together with the support leg.

[0055] In one embodiment, the mounting base is provided with the position-regulating hook, and the front connecting portion is provided with a locking groove. After the support leg is extended to a predetermined position, the position-regulating hook is locked into the locking groove, thereby restricting the support leg to the extended position.

[0056] In one embodiment, the mounting base is movably fitted with the anti-pinch cover and has an intermediate position between the extended position and the folded position. The contact bar does not come into contact with the stepped portion during the rotation of the support leg from the extended position to the intermediate position. The contact bar comes into contact with the stepped portion during the rotation of the support leg from the intermediate position to the folded position.

[0057] In one embodiment, when the support leg rotates from the folded position to the unfolded position, the support leg presses against the stepped portion of the pinch prevention cover, causing the pinch prevention cover to rotate together with the support leg.

[0058] In one embodiment, a decorative cover is included. The decorative cover is positioned on the connecting portion, and a storage space for housing the anti-pinch cover is formed between the decorative cover, the connecting portion, and the support legs, and the anti-pinch cover is housed in the storage space when the support legs are in the extended position.

[0059] In one embodiment, the anti-pinch cover and the support leg are rotatably connected to the same pivot axis. The pivot axis is deviated from the longitudinal extension of the support leg. The floor contact indicator is rotatably connected to the mounting base, and the connection portion is provided with an indicator through-hole. When the support leg is in the deployed position, the floor contact indicator is aligned with the indicator through-hole.

[0060] The carrier relating to this disclosure includes a main body and support legs. The main body is provided with a support leg extension mechanism relating to this disclosure, and a finger pinch prevention rotation mechanism relating to this disclosure is provided at the rotational position between the support legs and the main body. [Brief explanation of the drawing]

[0061] The embodiments of this disclosure will be described in detail below with reference to the attached drawings. [Figure 1] Figure 1 is a perspective view of the child seat according to this disclosure, in which the contact portion extends from the support legs. [Figure 2]Figure 2 is a perspective view of the child seat according to this disclosure, in which the contact portion is recessed into the support leg. [Figure 3] Figure 3 is a perspective view of the support leg relating to this disclosure. [Figure 4] Figure 4 is a perspective view of the support leg according to this disclosure, in which the cover has been removed to show the structure beneath the cover. [Figure 5] Figure 5 is an exploded perspective view of the support leg according to this disclosure. [Figure 6] Figure 6 is a perspective view of the traction member, traction member sleeve, and retaining sleeve of the contact indicator mechanism according to this disclosure. [Figure 7] Figure 7 is a perspective view of the support leg according to this disclosure from a different angle, where the cover and bracket have been removed to show the structure of other components. [Figure 8] Figure 8 is a perspective view of the support leg according to this disclosure from a different angle, where the cover and bracket have been removed to show the structure of other components. [Figure 9A] Figure 9A is a longitudinal side cross-sectional view of the upper end of a support leg in an ungrounded state. [Figure 9B] Figure 9B is a longitudinal side cross-sectional view of the upper end of the support leg in the ground position. [Figure 10A] Figure 10A is a longitudinal front cross-sectional view of the bottom end of a support leg in an ungrounded state. [Figure 10B] Figure 10B is a longitudinal front cross-sectional view of the bottom end of the support leg in the ground position. [Figure 11] Figure 11 is a schematic diagram of a support leg in an extended state according to the first embodiment of this disclosure. [Figure 12] Figure 12 shows the traction member of Figure 11. [Figure 13] Figure 13 is a schematic diagram of a support leg in a retracted state according to the first embodiment of the present disclosure. [Figure 14] Figure 14 shows the traction member of Figure 13. [Figure 15] Figure 15 is a schematic diagram of a support leg in an extended state according to conventional technology. [Figure 16] Figure 16 is a schematic diagram of a traction member according to a second embodiment of the present disclosure. [Figure 17] Figure 17 is a schematic diagram of a support leg in an extended state according to a third embodiment of the present disclosure. [Figure 18] Figure 18 is a schematic diagram of a support leg in a retracted position according to a third embodiment of the present disclosure. [Figure 19] Figure 19 is a perspective view of the child seat of this disclosure, in which the support legs are in the deployed and extended positions. [Figure 20] Figure 20 is a partial perspective view of a child seat according to one embodiment of the present disclosure, in which the first cover portion for covering the ends of the support legs has been removed to show the internal structure. [Figure 21] Figure 21 is a perspective view of the child seat of this disclosure, in which the support legs are in the folded and retracted positions. [Figure 22] Figure 22 is a bottom perspective view of the child seat of this disclosure, where the support legs are in the folded and retracted positions. [Figure 23] Figure 23 is a side perspective view of the child seat of this disclosure, in which the support legs are in the folded and retracted positions. [Figure 24A] Figure 24A is a cross-sectional view along line A-A in Figure 22 of one embodiment of the present disclosure. [Figure 24B] Figure 24B is a magnified view of a portion of Figure 24A. [Figure 25A] Figure 25A is a cross-sectional view similar to Figure 24A, and the support legs in Figure 25A are in the extended and unfolded positions. [Figure 25B] Figure 25B is a magnified view of a portion of Figure 25A. [Figure 26A] Figure 26A is a cross-sectional view similar to Figure 24A, and the support legs in Figure 26A are in the fully extended and unfolded position. [Figure 26B] Figure 26B is a magnified view of a portion of Figure 26A. [Figure 27A] Figure 27A is a perspective view of a child seat according to one embodiment of the present disclosure, in which the support legs are in the extended and unfolded position. [Figure 27B] Figure 27B is a magnified view of a portion of Figure 27A. [Figure 28A] Figure 28A is a perspective view of the child seat of this disclosure, with some components removed to show the internal structure. [Figure 28B] Figure 28B is a magnified view of a portion of Figure 28A. [Figure 29A] Figure 29A is a cross-sectional view along line A-A in Figure 22 of another embodiment of the present disclosure. [Figure 29B] Figure 29B is a magnified view of a portion of Figure 29A. [Figure 30A] Figure 30A is a cross-sectional view similar to Figure 29A, and the support legs in Figure 30A are in the extended and unfolded positions. [Figure 30B] Figure 30B is a magnified view of a portion of Figure 30A. [Figure 31A] Figure 31A is a cross-sectional view similar to Figure 29A, but the support legs in Figure 31A are in a further extended and expanded position. [Figure 31B] Figure 31B is a magnified view of a portion of Figure 31A. [Figure 32A] Figure 32A is a cross-sectional view similar to Figure 29A, where the support legs in Figure 31A are in the fully extended and unfolded position. [Figure 32B] Figure 32B is a magnified view of a portion of Figure 32A. [Figure 33A] Figure 33A is a cross-sectional view along line B-B in Figure 22 of yet another embodiment of the present disclosure. [Figure 33B] Figure 33B is a magnified view of a portion of Figure 33A. [Figure 34A] Figure 34A is a cross-sectional view similar to Figure 33A, and the support legs in Figure 34A are in the unfolded and extended positions. [Figure 34B] Figure 34B is a magnified view of a portion of Figure 34A. [Figure 35A] Figure 35A is a cross-sectional view similar to Figure 33A, but the support legs in Figure 35A are in a further extended and expanded position. [Figure 35B] Figure 35B is a magnified view of a portion of Figure 35A. [Figure 36A] Figure 36A is a cross-sectional view similar to Figure 33A, where the support legs are in the fully extended and unfolded position. [Figure 36B] Figure 36B is a magnified view of a portion of Figure 36A. [Figure 37A] Figure 37A is a cross-sectional view along line B-B in Figure 22 of yet another embodiment of the present disclosure. [Figure 37B] Figure 37B is a magnified view of a portion of Figure 37A. [Figure 38A] Figure 38A is a cross-sectional view similar to Figure 37A, and the support legs in Figure 38A are in the extended and unfolded positions. [Figure 38B] Figure 38B is a magnified view of a portion of Figure 38A. [Figure 39A] Figure 39A is a cross-sectional view similar to Figure 37A, but the support legs in Figure 39A are in a further extended and expanded position. [Figure 39B] Figure 39B is a magnified view of a portion of Figure 39A. [Figure 40A] Figure 40A is a cross-sectional view similar to Figure 37A, where the support legs are in the fully extended and unfolded position. [Figure 40B] Figure 40B is a magnified view of a portion of Figure 40A. [Figure 41] Figure 41 is a perspective view of the child seat according to this disclosure, in which the support legs are in the extended and unfolded state, and the support leg extension mechanism is in the extended state. [Figure 42] Figure 42 is a perspective view of the child seat according to this disclosure, in which the support legs are in a retracted and folded state, and the support leg extension mechanism is in the retracted state. [Figure 43] Figure 43 is an exploded perspective view of a child car seat. [Figure 44] Figure 44 is a perspective view of the support leg extension mechanism and support leg according to this disclosure, in which the support leg extension mechanism is in the extended state. [Figure 45] Figure 45 is a perspective view of the support leg extension mechanism and support leg according to the present disclosure, in which the support leg extension mechanism is fully retracted and the support leg is folded. [Figure 46A] Figure 46A is a perspective view of the fixing and sliding frame of a child car seat. [Figure 46B] Figure 46B is a perspective view of a fixed sliding frame of a child seat according to another embodiment. [Figure 47] Figure 47 is a perspective view of the movable sliding frame of the child car seat. [Figure 48] Figure 48 is a perspective view of the decorative cover of a child car seat. [Figure 49] Figure 49 is a perspective view of the locking mechanism of a child car seat. [Figure 50] Figure 50 is a perspective view of the elastic component of a child car seat. [Figure 51] Figure 51 is a perspective view of the child seat mounting base from different angles. [Figure 52] Figure 52 is a perspective view of the child seat mounting base from different angles. [Figure 53A] Figure 53A shows a partially enlarged side view of the support leg extension mechanism in its extended state, with the decorative cover removed to clearly show other components. [Figure 53B] Figure 53B shows a partially enlarged side view of the support leg extension mechanism in an intermediate state, with the decorative cover removed to clearly show other components. [Figure 53C] Figure 53C shows a partially enlarged side view of the support leg extension mechanism in its fully retracted state, with the decorative cover removed to clearly show other components. [Figure 54A] Figure 54A shows a partially enlarged side cross-sectional view of the support leg extension mechanism in its extended state. [Figure 54B] Figure 54B shows a partially enlarged side cross-sectional view of the support leg extension mechanism in an intermediate state. [Figure 54C] Figure 54C shows a partially enlarged side cross-sectional view of the support leg extension mechanism in its fully retracted state. [Figure 55A] Figure 55A shows a partially enlarged top view of the support leg extension mechanism in its extended state, with the decorative cover removed to clearly show other components. [Figure 55B]Figure 55B shows a partially enlarged top view of the support leg extension mechanism in an intermediate state, with the decorative cover removed to clearly show other components. [Figure 55C] Figure 55C shows a partially enlarged top view of the support leg extension mechanism in its fully retracted state, with the decorative cover removed to clearly show other components. [Figure 56] Figure 56 is a partially enlarged top perspective view showing the movable sliding frame and position regulating pin. [Figure 57] Figure 57 is a partially enlarged bottom perspective view showing the locking member and the elastic member. [Figure 58A] Figure 58A shows a partially enlarged side cross-sectional view of the locking member in the locked state. [Figure 58B] Figure 58B shows a partially enlarged side cross-sectional view of the locking member in the unlocked state. [Figure 59A] Figure 59A shows a partially enlarged side cross-sectional view of the support leg in the deployed position. [Figure 59B] Figure 59B shows a partially enlarged side cross-sectional view of the support leg located in the intermediate position. [Figure 59C] Figure 59C shows a partially enlarged side cross-sectional view of the support leg in the folded position. [Modes for carrying out the invention]

[0062] While this disclosure is illustrated and described with reference to specific embodiments, this disclosure should not be limited to the details shown. Specifically, various modifications can be made to these details within the scope of the equivalents of the claims and without departing from this disclosure.

[0063] The descriptions of directions such as “front,” “back,” “up,” and “down” used herein are for convenience of understanding only. This disclosure is not limited to these directions and may be adapted to the actual circumstances.

[0064] The carrier 200 relating to this disclosure will be described in general terms with reference to Figures 1 and 2. In embodiments of this disclosure, the carrier 200 is a child seat, but is not limited thereto. This disclosure is applicable to any carrier 200 that requires support legs 100.

[0065] As shown in the figure, the carrier 200 includes a base 210 and a seat 220. The base 210 is the part for fixing the carrier 200 to the vehicle seat, and the seat 220 is the part for carrying the occupant (i.e., the child). The support legs 10 are installed under the base 210, more specifically on the front underside of the base 210, and are configured to support the base 210 on a surface such as the floor of the vehicle, preventing the child seat from tipping forward in the event of a vehicle collision.

[0066] In one embodiment, the support leg 10 is connected to the base 210 via an extendable bracket 170 (see Figure 5), so that the support leg 10 is movable longitudinally (i.e., in the front-to-back direction) relative to the base 210, either extending from the base 210 or retracting to a position below the base 210. It should be understood that the support leg 10 may also be directly connected to the base 210.

[0067] The decorative cover 160 can cover the top of the support legs 10, and a hollow section or transparent window 166 can be provided at the front end of the decorative cover 160 so that the user can observe the indicator 110 placed on the support legs 10.

[0068] A fixed seat 140 is positioned at the bottom end of the support leg 10, and a retractable contact portion 131 is positioned on the fixed seat 140. When the support leg 10 is not in contact with a surface such as the floor, the contact portion 131 extends from the fixed seat 140, as shown in Figure 1. When the support leg 10 is in contact with a surface such as the floor, the contact portion 131 is pushed by the surface and retracts into the fixed seat 140, as shown in Figure 2, and at the same time moves the indicator 110 of the contact indicator mechanism 100 to provide a contact indication. The indicator 110 is used to indicate whether or not the bottom end of the support leg 10 is in contact with the floor. The floor is, for example, the floor of a vehicle. The structure and principle of the contact indicator mechanism 100 will be described in detail below.

[0069] The upper end of the support leg 10 (in this embodiment, the upper end of the support leg 10 may be the indicator end) is connected to the bracket 170. Alternatively, in embodiments without the bracket 170, the upper end of the support leg 10 is directly connected to the base 210. The lower end of the support leg 10 (in this embodiment, the lower end of the support leg 10 may be the contact end) is used to contact the floor surface.

[0070] The support leg 10 according to this disclosure will be described in more detail with reference to Figures 3 and 4. The bracket 170 used to connect the support leg 10 to the base 210 includes a sliding mechanism 171. The sliding mechanism 171 is a hinged scissor connecting rod and / or slide rail, and the sliding mechanism 171 may be provided with a spring for biasing the support leg 10 to a position below the base 210.

[0071] As is clearly visible with reference to Figure 3, the indicator 110 of the contact indicator mechanism 100 is exposed to the user's line of sight through the hollow portion or transparent window 166 in the decorative cover 160, making it easy for the user to observe.

[0072] Referring to Figure 5, the specific structure of the support leg 10 and contact indicator mechanism 100 according to this disclosure will be described.

[0073] The support leg 10 includes a first tube 101, a second tube 102, and a contact indicator mechanism 100. The contact indicator mechanism 100 includes an indicator 110, a drive member 130, a traction member 150, a traction member sleeve 155, a retaining sleeve 156, a fixed seat 140, a first elastic member 182, a first screw 181 (Figures 9A and 9B), a second elastic member 183, and a second screw 184.

[0074] The first tube 101 has an indicator end, and the second tube 102 has a contact end. The first tube 101 is connected to the second tube 102 via an adjustment device 101b (e.g., a clamping element or a pin, but not limited thereto) to allow adjustment of the overall length of the support leg 10. In one embodiment, the first tube 101 is sleeve-connected to the outside of the second tube 102.

[0075] The drive member 130 is positioned at least partially at the contact end of the support leg 10, i.e., at the bottom end of the second tube 102. The drive member 130 includes a contact portion 131 that extends vertically outward from the contact end. The drive member 130 can move relative to the contact end between an extended position (see Figure 1) in which the contact portion 131 extends outward from the contact end and a retracted position (see Figure 2) in which the contact portion 131 retracts into the contact end.

[0076] More specifically, the drive member 130 may include a shoulder portion 135 and a column hole 132. The shoulder portion 135 is located at the contact end of the support leg 10 and extends substantially laterally, and the two contact portions 131 each extend outward vertically from the contact end from both lateral ends of the shoulder portion 135. The column hole 132 is formed on the shoulder portion 135 and can be slidably sleeve-connected to a column 141 extending inward from the bottom of the contact end.

[0077] In one embodiment, the second elastic member 183 is positioned between the drive member 130 and the contact end, and the second elastic member 183 biases the drive member 130 to the extended position. The second elastic member 183 may be a coil spring. The second elastic member 183 is sleeve-connected to the column 141. One end of the second elastic member 183 abuts against the inside of the second screw 184, and the other end of the second elastic member abuts against the shoulder portion 135, thereby biasing the drive member 130 to the extended position. It should be understood that the arrangement of the second elastic member 183 is not limited to this, as long as the drive member 130 is biased to the extended position by the second elastic member 183.

[0078] The drive member 130 further includes a retaining sleeve mounting portion (i.e., a second housing portion 133) that extends vertically inward from the center of the shoulder portion 135 in the form of a groove and has a shape corresponding to the second end 156b of the retaining sleeve, in order to fix the second end 156b of the retaining sleeve. It should be understood that the shape of the second housing portion 133 is not limited to this and can be changed according to the shape of the second end 156b of the retaining sleeve.

[0079] The fixed seat 140 is a substantially flat member extending in the lateral and vertical directions. In embodiments where the fixed seat 140 is provided as a separate member, the bottom end (i.e., the contact end) of the support leg 10 may be an open end, and the fixed seat 140 is used to close this open end. The column 141 is positioned inside the fixed seat 140. A through hole is provided in the fixed seat 140, so that the contact portion 131 of the drive member 130 extends outside the support leg 10 through the fixed seat 140. As described above, the fixed seat 140 can be integrated with the second tube 102 to form a single integrated component.

[0080] The traction member 150 extends substantially vertically between the supporting end and the contact end of the support leg 10, and may also be wrapped around the support leg 10 as it expands and contracts, which will be explained in detail below.

[0081] The traction member sleeve 155 is sleeve-connected to the upper outer part of the traction member 150 (i.e., a portion of the outer part of the traction member 150 near the guide end) and the lower outer part of the traction member 150 (i.e., a portion of the outer part of the traction member 150 near the contact end). In this embodiment, the traction member sleeve 115 as a whole is continuously sleeve-connected to the upper and lower outer parts of the traction member 150. It should be understood that in other embodiments, the traction member sleeve 115 may be divided into multiple parts, i.e., including a portion sleeve-connected to the upper outer part of the traction member 150 and a portion sleeve-connected to the lower outer part of the traction member 150. The traction member sleeve 155 includes a first end 155a of the traction member sleeve connected to the guide end and a second end 155b of the traction member sleeve connected to the drive member 130. The traction member sleeve 155 may be made of a material such as rubber or plastic that has a certain degree of flexibility and can be bent or rolled, but its length does not change substantially. Alternatively, in other embodiments, the traction member 155 may be sequentially connected to the retaining sleeve 156, i.e., the second end 155b of the traction member sleeve is connected to the first end 156a (not shown) of the retaining sleeve instead of the drive member 130.

[0082] The retaining sleeve 156 is sleeve-connected to the lower outer portion of the traction member 150, i.e., the outer portion of the traction member 150 near the contact end. The retaining sleeve 156 includes a first end 156a located near the center of the traction member 150 and a second end 156b connected to the drive member 130. The retaining sleeve 156 may be made of hard leather or a metal material, and is substantially inflexible and has a substantially constant length.

[0083] The retaining sleeve 156 may be sleeve-connected to a portion of the outside of the traction member sleeve 155 near the contact end, and the second end 156b of the retaining sleeve may be sleeve-connected to the outside of the second end 156b of the traction member sleeve. Alternatively, the traction member sleeve 155 and the retaining sleeve 156 may be an integral structure, which will be described in detail in the second embodiment below.

[0084] In one embodiment, both the first end 155a of the traction member sleeve and the second end 156b of the retaining sleeve are in the shape of a hammerhead with an increased diameter at both ends, so as to be connected to the guide end and the drive member 130. It should be understood that the first end 155a of the traction member sleeve and the second end 156b of the retaining sleeve may also take other forms such as male threads or elastic clamping elements, or may be directly welded to the guide end and the drive member 130.

[0085] The traction member 150 includes a first end 151 extending from a first end 155a of the traction member sleeve and a second end 152 extending from a second end 156b of the retaining sleeve. The first end 151 of the traction member is connected to an indicator 110, which can be driven to rotate the indicator 110 around a movable axis 114 (see Figures 9A and 9B). The second end 152 of the traction member is connected to a contact end, and more specifically, the second end 152 of the traction member is connected to a fixed seat 140. The traction member 150 is made of, for example, steel wire, nylon thread, or carbon fiber, and has a certain flexibility and can be bent, but its length does not change in any way.

[0086] In one embodiment, both the first end 151 and the second end 152 of the towing member are in the shape of a hammerhead with an increasing diameter at both ends. It should be understood that the first end 151 and the second end 152 of the towing member may also take other forms such as male threads or knots, or may be directly welded to the support end and contact end.

[0087] Referring to Figure 6, the specific structures of the traction member 150, the traction member sleeve 155, and the retaining sleeve 156 can be seen more clearly.

[0088] The mounting member 120 and indicator 110 of the contact indicator mechanism 100 according to this disclosure will be described in detail with reference to Figures 7 and 8.

[0089] The mounting member 120 is positioned at the top end of the support leg 10. The mounting member 120 is, for example, two sheet-like parts arranged laterally, and the movable shaft 114 is provided on the mounting member 120 along the later direction. The indicator 110 is provided at the supporting end of the support leg 10 via the movable shaft 114 and can rotate between a first position and a second position about the movable shaft 114 (the first and second positions will be described later).

[0090] The specific structure of the supporting end of the support leg 10 of this disclosure will be described with reference to Figures 9A and 9B.

[0091] A first region 111 and a second region 112 are arranged circumferentially on the columnar outer circumference of the indicator 110. When the support leg 10 is in a non-floor contact position, the indicator 110 is in a first position, and the first region 111 is exposed through the hollow portion or the transparent window 166. When the support leg 10 is in a floor contact position, the indicator 110 is in a second position, and the second region 112 is exposed through the hollow portion or the transparent window 166. For example, the first region 111 may be red, the second region 112 may be green, or the first region 111 and the second region 112 may be painted with different marks (e.g., dots, diagonal lines or other patterns), and the embodiments of this disclosure do not limit the representation of the first region 111 and the second region 112, as long as they can indicate whether or not the support leg 10 is in contact with the floor. The shapes of the first region 111 and the second region 112 can correspond to the shapes of the hollow portion and the transparent window 166.

[0092] The first side of the indicator 110 has a first housing 113 for connecting a traction member 150. The first end 151 of the traction member is connected to the first housing 113. The second side of the indicator 110 is connected to one end of a first elastic member 182. For example, one end of the first elastic member 182 is connected to the second side of the indicator 110 by a first screw 181. The other end of the first elastic member 182 abuts against the indicator end. In one embodiment, the first side of the indicator 110 is the opposite side of the second side of the indicator 110.

[0093] In the situations shown in Figures 9A and 10A, the indicator 110 is in the first position and the drive member 130 is in the extended position. The first region 111 of the indicator 110 faces upward (i.e., towards the position where the hollow portion on the decorative cover 160 and the transparent window 166 are located) to indicate that the support leg 10 is not in contact with the floor surface. Due to the biasing action of the first elastic member 182 and the second elastic member 183, the indicator 110 and the drive member 130 tend to remain in the positions shown in Figures 9A and 10A when there is no external force influence.

[0094] In other embodiments, the indicator 110 may be configured to move linearly instead of rotating. For example, the indicator 110 is positioned at the indicator end via a slide rail and can slide between a second position and a first position. In the absence of external force, the indicator 110 is biased to the first position. When the contact end makes contact with the surface, the traction member 150 (specifically, the first end 151 of the traction member) moves the indicator 110 to the second position against the biasing force. The slide rail may be positioned laterally, and the vertical movement of the traction member 150 is converted to lateral movement by a pulley at the indicator end. The slide rail may be positioned vertically, and the hollow section or transparent window 166 is formed on the vertical plane of the decorative cover 160.

[0095] The specific structure of the contact end of the support leg 10 of this disclosure will be described with reference to Figures 10A to 10B.

[0096] The drive member 130 can move vertically relative to the fixed seat 140. The second end 152 of the traction member 150 is connected to the contact end (specifically, to the fixed seat 140), and the second end 156b of the retaining sleeve 156 is connected to the drive member 130 (specifically, to the second housing 133). Therefore, the second end 156b of the retaining sleeve moves with the drive member 130, but the second end 152 of the traction member does not move with the drive member 130.

[0097] When the contact end is not in contact with the floor, the drive member 130 is biased by the second elastic member 183, thereby causing the contact portion 131 of the drive member to extend outside the support leg 10 via the fixed seat 140 (see Figure 10A). When the contact end is in contact with the floor, the contact portion 131 of the drive member 130 is first pushed by the floor and therefore moves to a retracted position against the biasing of the second elastic member 183 (see Figure 10B). Thus, the drive member 130 moves the second end 156b of the retaining sleeve away from the contact end (i.e., upward). On the other hand, since the second end 152 of the traction member is connected to the contact end, the second end 152 of the traction member does not move away from the contact end, i.e., does not move upward. In this way, the second end 152 of the traction member extends a certain length from the second end 156b of the retaining sleeve.

[0098] The operation of the support leg 10 according to this disclosure will be explained with reference to Figures 9A to 10B.

[0099] In the states shown in Figures 9A and 10A, the contact end is not in contact with the floor surface. The contact portion 131 of the drive member 130 extends from the fixed seat 140. The indicator 110 is not being pulled by the traction member 150, and therefore the indicator 110 is in the first position.

[0100] In the states shown in Figures 9B and 10B, the contact portion 131 of the drive member 130 is in contact with the floor surface. The retaining sleeve 156 moves upward together with the drive member 130, causing the second end 152 of the traction member to extend from the second end 156b of the retaining sleeve. As previously mentioned, the lengths of the traction member 150, the traction member sleeve 155, and the retaining sleeve 156 do not change fundamentally; that is, the lengths of the portions of the traction member 150 in the traction member sleeve 155 and the retaining sleeve 156 do not change fundamentally. In this way, as the second end 152 of the traction member extends a certain length from the second end 156b of the retaining sleeve, the first end 151 of the traction member retracts by a corresponding length into the first end 155a of the traction member sleeve. Since the first end 155a of the traction member sleeve is fixed to the indicator end of the support leg 10, the traction member 150 slides toward the contact end relative to the traction member sleeve 155, that is, moves downward, and further drives the indicator 110 to rotate from the first position to the second position. Thus, the traction member 150 can transmit the movement of the drive member 130 to the indicator 110.

[0101] It should be understood that the operating principle of the traction member 150, the traction member sleeve 155, and the retaining sleeve 156 is primarily related to their respective lengths, regardless of the degree of bending or winding of each. Even if the length of the support leg 10 changes and the traction member 150 and the traction member sleeve 155 are bent or wound accordingly, the lengths of the traction member 150, the traction member sleeve 155, and the retaining sleeve 156 do not fundamentally change, so the traction member 150 can still transmit the movement of the drive member 130 to the indicator 110.

[0102] The operation of the traction member sleeve 155 and the retaining sleeve 156 according to the first embodiment of this disclosure will be described with reference to Figures 11 to 14. For ease of understanding, please note that in Figures 5 and 6, the traction member 150, the traction member sleeve 155, and the retaining sleeve 156 are not shown in a curled or wound configuration. However, in the embodiments shown in Figures 5 and 6, the traction member 150, the traction member sleeve 155, and the retaining sleeve 156 may exhibit a curled or wound configuration.

[0103] As previously mentioned, the traction member sleeve 155 is made from a flexible material that can be bent or wound. To accommodate changes in the length of the support leg 10, the traction member sleeve 155 is wound annularly inside the support leg 10. For ease of explanation, the portion of the traction member sleeve 155 extending downward from the first end 155a of the traction member sleeve is called the extended portion 155e. The ring portion extending upward from the lower end of the extended portion 155e is called the wound portion 155c. The wound portion 155c shown in the illustration is wound half a turn, but may be wound 1.5 turns or 2.5 turns, for example. The portion extending upward from the winding portion 155c to the second end 155b of the traction member sleeve is called the adjustment portion 155d (where the joint between the second end 155b of the traction member sleeve and the adjustment portion 155d is wound approximately half a turn from the upper end of the adjustment portion 155d, and then extends downward to the second end 155b of the traction member sleeve). Note that the extended portion 155e, winding portion 155c, and adjustment portion 155d are merely names for different parts of the traction member sleeve 155. When the length of the support leg 10 is changed, the lengths of the extended portion 155e, winding portion 155c, and adjustment portion 155d also change accordingly. In particular, changes in the length of the extended portion 155e and the length of the adjustment portion 155d change the vertical dimensions of the traction member sleeve 155 on the support leg 10. Specifically, when the length of the support leg 10 decreases, the length of the extended portion 155e decreases and the length of the adjustment portion 155d increases. When the length of the support leg 10 increases, the length of the extended portion 155e increases and the length of the adjustment portion 155d decreases.

[0104] As described above, the retaining sleeve 156 is not bent or wound in any way. Therefore, when the length of the support leg 10 changes, the retaining sleeve 156 remains essentially vertically extended, while the traction member sleeve 155 is wound to a different degree to accommodate the change in the length of the support leg 10. In this way, it is possible to prevent the wound portion 155c or the wound portion 155c and the adjustment portion 155d from contacting the contact end, for example, preventing the wound portion 155c from contacting the fixed seat 140. More specifically, in this embodiment, the retaining sleeve 156 is sleeve-connected to the outside of at least a portion that extends downward at the joint between the second end 155b of the traction member sleeve and the adjustment portion 155d.

[0105] More specifically, the diameter D2 of the wound portion 155c may be smaller than the inner diameter of the support leg 10 near the contact end, and may also be smaller than, for example, the inner diameter D1 of the second tube 102. In this way, the wound portion 155c does not substantially contact the inner wall of the second tube 102, and thus reduces the resistance between them.

[0106] The sum of the diameter D2 of the winding portion 155c and the length L2 of the adjustment portion 155d (i.e., the maximum length of the adjustment portion 155d when the support leg 10 is fully retracted) may be less than the length L1 of the retaining sleeve 156. In this way, even when the support leg 10 is fully retracted, the adjustment portion 155d hanging down from the top end of the retaining sleeve 156 and the winding portion 155c hanging down from the bottom end of the adjustment portion 155d do not come into contact with the fixed seat 140.

[0107] In another embodiment, the sum of the diameter D2 of the winding portion 155c and the maximum adjustable length range of the support leg 10 may be less than the length L1 of the retaining sleeve 156. The maximum adjustable length range of the support leg 10 may be the difference between the total length L of the support leg 10 in the extended state shown in Figure 11 and the total length L' of the support leg 10 in the retracted state shown in Figure 13. In this way, even when the support leg 10 is fully retracted, the adjustment portion 155d hanging down from the top end of the retaining sleeve 155 and the winding portion 155c hanging down from the bottom end of the adjustment portion 155d do not come into contact with the fixed seat 140.

[0108] Referring to Figure 15, we will now describe the case in which the retaining sleeve 156 is not provided in the prior art.

[0109] In the absence of the retaining sleeve 156, both ends of the traction member sleeve 155 are connected to the indicator end and contact end of the support leg 10, respectively. Since all parts of the traction member sleeve 155 are windable, the winding portion 155c of the traction member sleeve 155 can move near the contact end under the action of gravity or external force, as shown in Figure 13. In this way, the winding portion 155c can come into direct contact with the fixed seat 140. When the support leg 10 is retracted, the fixed seat 140 comes into direct contact with the winding portion 155c, preventing the winding portion 155c from winding properly, and furthermore, the winding portion 155c comes into direct contact with the indicator 110 (not shown) at the indicator end, causing abnormal operation of the indicator 110.

[0110] In contrast, this disclosure overcomes the above problems by providing a retaining sleeve 156.

[0111] A traction member sleeve 155 and a retaining sleeve 156 according to a second embodiment of the present disclosure will be described with reference to Figure 16.

[0112] In the second embodiment, the traction member sleeve 155 and the retaining sleeve 156 are integrally arranged, and the flexibility of the traction member sleeve 155 is greater than the flexibility of the retaining sleeve 156. That is, the traction member sleeve 155 and the retaining sleeve 156 are an integral structure, i.e., the traction member sleeve 155 and the retaining sleeve 156 are sleeve-connected with their ends aligned on the outside of the traction member 150. In this case, the traction member sleeve 155 and the retaining sleeve 156 are two parts of one member having different hardnesses.

[0113] A support leg 10 according to a third embodiment of this disclosure will be described with reference to Figures 17 and 18.

[0114] In the third embodiment, the support leg 10 is provided with a position restricting portion 101a. The position restricting portion 101a is, for example, a column or groove provided in the position restricting device 101b.

[0115] The winding portion 155c bypasses the position restricting portion 101a. The position restricting portion 101a is positioned such that the distance between the winding portion 155c and the indicator end does not substantially change when the length of the support leg 10 changes. More specifically, because the winding portion 155c is wound around the position restricting portion 101a, when the first tube 101 moves relative to the second tube 102, the winding portion 155c moves with the first tube 101 relative to the second tube 102. This prevents the winding portion 155c from falling near the contact end. In another embodiment, the winding portion 155c is wound halfway around, and the winding portion 155c bypasses the position restricting portion 101a together with a half-circumference ring connecting the second end 155b of the traction member sleeve and the adjustment portion 155d.

[0116] In summary, this disclosure provides a contact indicator mechanism that can intuitively indicate on the other end of a support leg whether one end of the support leg is in contact with the floor surface. The contact indicator mechanism of this disclosure can also enable changes in the length of the support leg and realize its contact indication function. The contact indicator mechanism of this disclosure can assist in the precise positioning of the winding portion of the traction member sleeve and prevent the winding portion from directly contacting the contact end.

[0117] While support legs are shown in the embodiments, it should be understood that the support legs of this disclosure can be applied to various components of various shapes.

[0118] This disclosure provides a carrier, which may be a child seat. The carrier may be attached to the seat of a vehicle (including various vehicles having seats) for carrying an infant or child and ensuring the safety of the infant or child. The carrier has support legs that can rotate between an extended position and a folded position relative to the carrier and can slide in the longitudinal direction between an extended position and a retracted position relative to the carrier.

[0119] Figure 19 is a perspective view of the carrier of the present disclosure with the support legs in the deployed and extended positions. Figure 20 is a partial perspective view of the carrier according to one embodiment of the present disclosure, where the first cover portion for covering the ends of the support legs has been removed to show the internal structure. Figure 21 is a perspective view of the carrier of the present disclosure with the support legs in the folded and retracted positions. Figure 22 is a bottom perspective view of the carrier of the present disclosure with the support legs in the folded and retracted positions. Figure 23 is a side perspective view of the carrier of the present disclosure with the support legs in the folded and retracted positions.

[0120] Referring to Figures 19, 21, and 23, the carrier 1S may include a base 10S, support legs 20S, and a seat portion 30S. The seat portion 30S may be positioned above the base 10S. The seat portion 30S may be rotatable relative to the base 10S, thereby allowing the seat portion 30S to have positions facing different directions. Alternatively, the seat portion 30S may be fixed relative to the base 10S. The seat portion 30S and the base 10S may be a single unit or may be formed separately and connected. When the carrier 1S is attached to a vehicle seat, the support legs 20S may be positioned at the front of the base 10S (i.e., the left side in Figure 23), extending downward and contacting the floor surface (i.e., the floor surface of the vehicle interior). The base 10S may have a base housing 18S. The base housing 18S may have an internal space for accommodating multiple components. An opening may be formed at the front of the base housing 18S. The base 10S may include a first cover portion 11S. The first cover portion 11S may be positioned in the opening of the base housing 18S so as not to expose the inside of the opening. The first cover portion 11S is configured to be extendable and retractable relative to the base 10S. Specifically, the first cover portion 11S is extendable and retractable by a certain distance along the front-rear direction (details will be described later). The support leg 20S may include an extendable first section 210S and a second section 220S. That is, since the support leg 20S includes the first section 210S and the second section 220S, the support leg 20S is extendable and retractable.

[0121] Referring to Figures 19 and 23, the support leg 20S can rotate between a folded position (Figure 23) and an extended position (Figure 19).

[0122] Referring to Figure 22, the housing section 181S may be formed at the bottom of the base housing 18S. The housing section 181S may also be a groove. The shape of the housing section 181S may correspond to the shape of the shortened support leg 20S, thereby allowing the shortened support leg 20S to be housed therein. A lock button 185S may be provided on the base housing 18S. When the lock button 185S is activated, it drives the locking mechanism 182S to partially lock the support leg 20S within the housing section 181S. The lock button 185S can be held in a locked state and an unlocked state, respectively. When the carrier 1S is packaged for sale, the lock button 185S is in the unlocked state, i.e., the support leg 20S is not locked. After the user opens the package of the carrier 1S, the support leg 20S is automatically deployed, thus reminding the user not to forget to use the support leg 20S. This prevents users from forgetting to install the support legs 20S, prevents users from misusing the carrier 1S, and ensures the safety and accuracy of using the carrier 1S.

[0123] Referring to Figure 20, the base 10S may include a second cover portion 12S. The second cover portion 12S is rotatably positioned on the base 10S, and the support legs 20S are rotatably positioned on the base 10S (details will be described later). The second cover portion 12S and the support legs 20S rotate in conjunction with each other and in synchronous motion. That is, the support legs 20S and the second cover portion 12S are integrally rotatable with respect to the first cover portion 11S. The second cover portion 12S covers the gap between the support legs 20S and the first cover portion 11S, thereby preventing the interior of the base housing 18S from being exposed when the support legs 20S rotate. The second cover portion 12S may include a buffer portion 121S. The buffer portion 121S may come into contact with the first cover portion 11S during the rotation of the second cover portion 12S. The buffer portion 121S may be made of an elastic material. The cushioning portion 121S may be an elastic convex rib. The elastic material may be rubber or resin, and is not limited thereto. The cushioning portion 121S may protrude from the front surface of the second cover portion 12S. The second cover portion 12S may have a plurality of cushioning portions 121S. Figure 20S shows three cushioning portions 121S, but is not limited thereto. Alternatively, the second cover portion 12S may have one, two, or four cushioning portions 121S.

[0124] The cushioning portion 121S may be formed on the support leg 20S. In the process of the support leg 20S moving from the folded position to the unfolded position, the cushioning portion 121S comes into contact with the base 10S, thereby elastically deforming to inhibit the rotation of the support leg 20S. Alternatively, the cushioning portion 121S may be formed on the base 10S, and in the process of the support leg 20S moving from the folded position to the unfolded position, the cushioning portion 121S comes into contact with the support leg 20S, thereby elastically deforming to inhibit the rotation of the support leg 20S.

[0125] The second cover portion 12S may have deformation grooves 122S formed on both sides of the cushioning portion 121S. The deformation grooves 122S allow the second cover portion 12S to deform more easily when the cushioning portion 121S comes into contact with the base 10S or the support leg 20S.

[0126] Alternatively, at least one of the buffer portion 121S, the first cover portion 11S, and the second cover portion 12S may be made of an elastic material.

[0127] Figure 24A is a cross-sectional view of one embodiment of the present disclosure along line A-A in Figure 22. Figure 24B is a partially enlarged view of Figure 24A. Figure 25A is a cross-sectional view similar to Figure 24A, where the support legs in Figure 25A are in the deployed and extended position. Figure 25B is a partially enlarged view of Figure 25A. Figure 26A is a cross-sectional view similar to Figure 24A, where the support legs in Figure 26A are in the fully deployed and extended position. Figure 26B is a partially enlarged view of Figure 26A. Figure 27A is a perspective view of a carrier according to one embodiment of the present disclosure, where the support legs are in the deployed and extended position. Figure 27B is a partially enlarged view of Figure 27A. Figure 28A is a perspective view of a carrier of the present disclosure, with some components removed to show the internal structure. Figure 28B is a partially enlarged view of Figure 28A.

[0128] Referring to Figures 28A and 28B, the base 10S may include a fixed bracket 13S and a movable bracket 14S. The fixed bracket 13S may be fixed inside the base housing 18S. The movable bracket 14S may be sleeve-connected to the fixed bracket 13S or may slide in the front-rear direction relative to the fixed bracket 13S. Both the fixed bracket 13S and the movable bracket 14S may be formed as a symmetrical frame structure, but this disclosure is not limited thereto. A restoring member 141S may be positioned between the movable bracket 14S and the base housing 18S. Specifically, two restoring members 141S may be positioned symmetrically between the movable bracket 14S and the base housing 18S, and the number of restoring members 141S is not limited herein. The restoring member 141S can apply a constant tensile force to the movable bracket 14S toward the front of the carrier 1S. Alternatively, the restoring member 141S may be positioned between the fixed bracket 13S and the movable bracket 14S. The restoring member 141S may be a tension spring, but this disclosure is not limited thereto. The first cover portion 11S may be positioned in front of the movable bracket 14S and extends and retracts along the front-rear direction together with the movable bracket 14S. The support leg 20S and the second cover portion 12S may be rotatably connected to the front of the movable bracket 14S (see Figures 24A to 28B). That is, when the movable bracket 14S moves along the front-rear direction, the support leg 20S, the first cover portion 11S and the second cover portion 12S all move along the front-rear direction together with the movable bracket 14S. The carrier 1S may include a conversion structure 40S. The conversion structure 40S may be connected to the support leg 20S, the fixed bracket 13S and the movable bracket 14S, respectively, so that the movement of the movable bracket 14S relative to the fixed bracket 13S and the rotation of the support leg 20S occur simultaneously. The conversion structure 40S may be formed as an extendable structure, for example, an extendable structure in which multiple rods are rotatably connected to each other to form multiple X-shaped units. One end of the conversion structure 40S may be connected to a fixed bracket, the other end of the conversion structure 40S may be connected to a movable bracket 14S, and the portion between the one end and the other end of the conversion structure 40S may be connected to a support leg 20S.The conversion structure 40S may be connected to the support leg 20S via, for example, a flexible rope or wire (not shown). This disclosure does not limit the specific structure of the conversion structure 40S, and it is sufficient that the conversion structure 40S has the function of synchronizing the deployment of the support leg 20S with the forward movement of the movable bracket 14S. Since the conversion structure 40S is not the focus of this disclosure, it will not be described in detail. The movable bracket 14S may also be provided with a locking member 15S (described in detail below). The locking member 15S may be positioned protruding from the movable bracket 14S.

[0129] Referring to Figures 24A to 27B, the support leg 20S may have a cam 17S. The cam 17S may rotate around the pivot axis 172S. The support leg 20S, the fixed bracket 13S, and the movable bracket 14S also rotate around the pivot axis 172S. The elastic member 173S may be positioned on the pivot axis 172S. The elastic member 173S can act on the movable bracket 14S and the support leg 20S, respectively, causing the support leg 20S to tend to rotate to the deployed position. The elastic member 173S may be a torsion spring. When the support leg 20S is locked in the housing 181S, the support leg 20S may be released by activating the lock button 185S. ​​Due to the action of the restoring member 141S, the support leg 20S rotates counterclockwise, and at this time the cushioning portion 121S contacts the lower edge of the first cover portion 11S. The first cover portion 11S is blocked, causing the buffer portion 121S to deform, thereby providing resistance to the rotation of the support leg 20S from the folded position to the unfolded position. Referring to Figure 24B, a deformation space 123S may be formed inside the second cover portion 12S. The deformation space 123S may be formed as a cavity that allows deformation of the buffer portion 121S. As the support leg 20S rotates further, resistance is generated as the buffer portion 121S abuts against and rubs against the inside of the first cover portion 11S. This resistance continues until the support leg 20S is fully unfolded (see Figures 27A and 27B). The magnitude of the resistance can be adjusted by adjusting the distance or number of protrusions of the buffer portion 121S. For example, the resistance may be adjusted to slowly unfold the support leg 20S but not to stop its rotation. That is, the buffer portion 121S can provide a buffering effect against the rotation of the support leg 20S.

[0130] When the support leg 20S changes from the state shown in Figures 24A and 24B to the state shown in Figures 25A and 25B, the buffer portion 121S does not come into contact with the first cover portion 11S. In this way, the support leg 20S may be accelerated from a stationary state to a certain speed without being hindered. That is, the buffer portion 121S is used only to prevent the rotation of the support leg 20S from being too fast, and does not always hinder the rotation of the support leg 20S from start to finish. With this configuration, the time required to deploy the support leg 20S can be shortened.

[0131] Alternatively, the base 10S may not include the movable bracket 14S. In this case, the support leg 20S, the first cover portion 11S, and the second cover portion 12S may be arranged on the fixed bracket 13S. That is, the support leg 20S can only rotate relative to the fixed bracket 13S and cannot slide along the front-rear direction.

[0132] Alternatively, the support leg 20S may be fixedly positioned on the movable bracket 14S, thereby allowing the support leg 20S to slide only in the front-rear direction and not rotate.

[0133] Figure 29A is a cross-sectional view along line AA in Figure 22 of another embodiment of the present disclosure. Figure 29B is a partially enlarged view of Figure 29A. Figure 30A is a cross-sectional view similar to Figure 29A, in which the support leg of Figure 30A is in the deployed and extended position. Figure 30B is a partially enlarged view of Figure 30A. Figure 31A is a cross-sectional view similar to Figure 29A, in which the support leg of Figure 31A is in a further deployed and extended position. Figure 31B is a partially enlarged view of Figure 31A. Figure 32A is a cross-sectional view similar to Figure 29A, in which the support leg of Figure 31A is in the fully deployed and extended position. Figure 32B is a partially enlarged view of Figure 32A.

[0134] The same parts of this embodiment as those of the previously described embodiments will not be described in detail again.

[0135] Referring to Figures 29A to 32B, the projection 171BS may be formed on the cam 17BS. The two sides of the projection 171BS are the first projection surface 1711BS and the second projection surface 1712BS, respectively. The carrier 1S may include a buffer 16S. The buffer 16S is fixed to the inner wall of the base 10S and is located above the cam 17BS. Specifically, the rear end of the buffer 16S (the left end in Figure 29B) may be fixed to the inner wall of the base 10S. Alternatively, the front end of the buffer 16S may be fixed to the inner wall of the base 10S. The projection 161S may be formed on the buffer 16S. The projection 161S protrudes substantially downward so as to face the cam 17BS. When the support leg 20S rotates counterclockwise, the projection 171BS contacts the projection 161S and provides resistance. In other words, the buffer portion 16S provides resistance to the rotation of the support leg 20S via the cam 17BS. The resistance causes the support leg 20S to extend slowly, but may be adjusted so as not to stop the rotation of the support leg 20S. Specifically, when the support leg 20S is extended, the first projection surface 1711BS contacts the projection 161S (as shown in Figure 30B) and provides resistance. When the support leg 20S is further extended, the second projection surface 1712BS contacts the projection 161S (as shown in Figure 31B), thereby causing the projection 161S to accelerate the extension of the support leg 20S.

[0136] The cushioning portion 16S may be an elastic sheet, such as a metal sheet or a plastic sheet. The projection 161S may be formed by bending the cushioning portion 16S, but this disclosure is not limited thereto. The cushioning portion 16S may be formed in a bent structure and may be elastic. In Figures 29A to 32B, one cushioning portion 16S is shown, and this cushioning portion 16S has one projection 161S. Alternatively, the carrier 1S may include two or more cushioning portions 16S. Alternatively, the cushioning portion 16S may include two or more projections 161S.

[0137] In this embodiment, the second cover portion 12S may not have a buffer portion 121S.

[0138] Alternatively, both the buffer portion 16S of this embodiment and the buffer portion 16S of the previously described embodiment may be present on the carrier 1S.

[0139] Figure 33A is a cross-sectional view along line B-B in Figure 22 of yet another embodiment of the present disclosure. Figure 33B is a partially enlarged view of Figure 33A. Figure 34A is a cross-sectional view similar to Figure 33A, in which the support leg of Figure 34A is in the deployed and extended position. Figure 34B is a partially enlarged view of Figure 34A. Figure 35A is a cross-sectional view similar to Figure 33A, in which the support leg of Figure 35A is in a further deployed and extended position. Figure 35B is a partially enlarged view of Figure 35A. Figure 36A is a cross-sectional view similar to Figure 33A, in which the support leg of Figure 36A is in a fully deployed and extended position. Figure 36B is a partially enlarged view of Figure 36A.

[0140] The same parts of this embodiment as those of the previously described embodiments will not be described in detail again.

[0141] Referring to Figures 33A to 36B, the fixing bracket 13S may have a locking hole 131S and a groove 132S. Both the locking hole 131S and the groove 132S may be formed on the upper surface of the fixing bracket 13S and may be spaced apart from each other. The groove 132S may be elongated. The carrier 1S may include a cushioning member 19S. The cushioning member 19S may be fixed inside the base housing 18S. For example, the cushioning member 19S may be fixed to the inner wall of the base 10S and positioned above the locking member 15S. Specifically, the front end of the cushioning member 19S (the right end in Figure 33B) may be fixed to the inner wall of the base 10S. Alternatively, the rear end of the cushioning member 19S may be fixed to the inner wall of the base 10S.

[0142] The locking member 15S may include a locking seat 151S, a locking pin 152S, and a drive member 153S. A cavity may be formed inside the locking seat 151S. The locking pin 152S is retractably positioned within the cavity formed by the locking seat 151S and abuts against the fixing bracket 13S. The shape of the cavity corresponds to the shape of the locking pin 152S, thereby allowing the locking pin 152S to slide up and down within the cavity. The drive member 153S may be positioned inside the locking seat 151S and above the locking pin 152S. The drive member 153S abuts against the locking pin 152S and the locking seat 151S, respectively, thereby applying a constant downward force to the locking pin 152S. When the locking member 15S moves with the movable bracket 14S relative to the fixed bracket 13S (i.e., when the first cover portion 11S, the second cover portion 12S, and the support leg 20S extend forward of the base 10S), the locking pin 152S is pushed by the drive member 153S and contacts the groove 132S, generating resistance. This resistance reduces the speed at which the movable bracket 14S moves, but does not stop the movable bracket 14S. This resistance prevents the first cover portion 11S from generating excessive impact force and damaging people or objects in front of the carrier 1S. After passing through the groove 132S, the movable bracket 14S continues to move forward until the locking pin 152S enters the locking hole 131S. At this time, the support leg 20S rotates until it is substantially perpendicular to the floor surface. The drive member 153S may be a spring, but this disclosure is not limited thereto.

[0143] While the movable bracket 14S moves relative to the fixed bracket 13S, the cushioning member 19S contacts the locking seat 151S, thereby generating resistance to the movement of the movable bracket 14S. This resistance reduces the speed of movement of the movable bracket 14S but does not stop it. Specifically, the cushioning member 19S can contact the top of the locking seat 151S. A projection 191S may be formed on the cushioning member 19S. The projection 191S protrudes substantially downward so as to face the locking seat 151S. When the fixed bracket 13S moves, the projection 191S contacts the locking seat 151S and provides variable resistance. In other words, when the projection 191S contacts the locking seat 151S, the movable bracket 14S receives maximum resistance.

[0144] The projection 191S may be the same as the cam 17BS of the buffer portion 16S. That is, when one side of the buffer member 19S (i.e., the left side in Figures 33B, 34B, 35B, and 36B) contacts the top of the lock seat 151S, the buffer member 19S generates resistance against the top of the lock seat 151S. When the other side of the buffer member 19S (i.e., the right side in Figures 33B, 34B, 35B, and 36B) contacts the top of the lock seat 151S, the buffer member 19S generates thrust against the top of the lock seat 151S, promoting the extension of the movable bracket 14S.

[0145] The cushioning member 19S may be an elastic sheet (or "elastic sheet"), such as a metal sheet or a plastic sheet. The cushioning member 19S may have a projection 191S formed on it for contacting the lock seat 151S. As shown in Figure 35B, the projection 191S may include a first surface 1911S and a second surface 1912S connecting the first surface 1911S. The angle between the second surface 1912S and the horizontal direction may be greater than the angle between the first surface 1911S and the horizontal direction. When the lock member 15S contacts the first surface 1911S, the cushioning member 19S can apply a thrust to the lock member 15S toward the retracted position. When the lock member 15S contacts the second surface 1912S, the cushioning member 19S can apply a thrust to the lock member 15S toward the extended position. The projection 191S may be formed by bending the cushioning member 19S, and the disclosure is not limited thereto. The cushioning member 19S may be formed in a bent structure and may be elastic. Figures 33 to 36 show one cushioning member 19S, which has one projection 191S. Alternatively, the carrier 1S may include two or more cushioning members 19S. Alternatively, the cushioning member 19S may include two or more projections 191S.

[0146] In this embodiment, resistance is applied to the movable bracket 14S by the buffer member 19S and the fixed bracket 13S. It can also be understood that resistance may be applied to the movable bracket 14S by only one of the buffer member 19S and the fixed bracket 13S.

[0147] Figure 37A is a cross-sectional view along line B-B in Figure 22 of yet another embodiment of the present disclosure. Figure 37B is a partially enlarged view of Figure 37A. Figure 38A is a cross-sectional view similar to Figure 37A, in which the support leg of Figure 38A is in the deployed and extended position. Figure 38B is a partially enlarged view of Figure 38A. Figure 39A is a cross-sectional view similar to Figure 37A, in which the support leg of Figure 39A is in a further deployed and extended position. Figure 39B is a partially enlarged view of Figure 39A. Figure 40A is a cross-sectional view similar to Figure 37A, in which the support leg of Figure 40A is in the fully deployed and extended position. Figure 40B is a partially enlarged view of Figure 40A.

[0148] The same parts of this embodiment as those of the previously described embodiments will not be described in detail again.

[0149] Referring to Figures 37A to 40B, unlike the previously described embodiment, one end of the cushioning member 19S in this embodiment may be fixed to the top of the locking seat 151S. A blocking recess 183S and a blocking projection 184S may be formed on the inner top surface of the base housing 18S. The blocking recess 183S may be located behind the blocking projection 184S (i.e., on the left side in Figure 37B). The other end (free end) of the cushioning member 19S may be formed as an arcuate surface or an annular shape. When the movable bracket 14S moves relative to the fixed bracket 13S, the other end of the cushioning member 19S can contact the inner top surface of the base housing 18S and generate resistance. When the other end of the cushioning member 19S moves to the blocking recess 183S and contacts the blocking projection 184S, the resistance that the base housing 18S applies to the movable bracket 14S via the cushioning member 19S reaches its maximum value. Similarly, maximum resistance only reduces the movement speed of the movable bracket 14S, but does not stop the movable bracket 14S. If the movable bracket 14S continues to move, the cushioning member 19S deforms and eventually separates from the blocking recess 183S and the blocking projection 184S. In the process of the movable bracket 14S moving from the retracted position to the extended position, after the free end of the cushioning member 19S no longer contacts the blocking projection 184S, the free end of the cushioning member no longer contacts the base housing.

[0150] In this embodiment, the resistance is applied to the movable bracket 14S by the base housing 18S and the fixed bracket 13S, but it can be understood that the resistance may also be applied to the movable bracket 14S by only one of the base housing 18S and the fixed bracket 13S.

[0151] As can be seen from the above, the rotation of the support legs 20S of the carrier 1S of this disclosure can be buffered, thereby preventing the support legs 20S from colliding with surrounding people or objects with relatively large energy when the support legs are deployed. The forward movement of the first cover portion 11S and the support legs 20S can be buffered, preventing the first cover portion 11S and the support legs 20S from colliding with surrounding people or objects with relatively large energy when they move forward.

[0152] At the same time, the present disclosure can change the resistance change curve by providing structures such as projections 191S, blocking recesses 183S and blocking projections 184S, thereby rationally setting the resistance change curve according to the change in speed of movement of the support legs 20S and the first cover portion 11S, ensuring that the movement of the support legs 20S and the first cover portion 11S meets the desired speed, and improving the operational quality of the carrier 1S. For example, when the support legs 20S begin to deploy and / or extend, no resistance is set so that the support legs 20S can deploy and / or extend quickly. When the support legs 20S have been deployed and / or extended to a certain position or speed, the resistance is set to prevent the support legs 20S from deploying and / or extending too rapidly, resulting in shock and noise.

[0153] Referring to Figures 41 and 42, the carrier 1T relating to this disclosure is described as a whole. Although the carrier 1T is described as a carrier in this disclosure, it should be understood that the carrier 1T may be any other suitable form having support legs 100T. The carrier 1T includes a main body 300T, support legs 100T, a support leg extension mechanism 200T, and a finger pinch prevention rotation mechanism 500T.

[0154] The main body 300T is the part in which the passenger sits. For the sake of explanation, this specification defines the longitudinal, transverse, and vertical directions based on the general use of the main body 300T. The main body 300T shown in Figures 41 and 42 includes a base that can be separated from the carrier and seat section. However, it should be understood that the main body 300T can adopt any suitable configuration, for example, the main body 300T may include only the base, or it may further include a combination of the base and an infant basket, or a combination of the base and a sleep basket, etc.

[0155] The support leg 100T is positioned at the front of the lower part of the main body 300T to support the main body 300T on the floor surface (not shown). One longitudinal end (i.e., the rear end) of the support leg extension mechanism 200T is connected to the main body 300T, and the other longitudinal end (i.e., the front end) of the support leg extension mechanism 200T is connected to the support leg 100T. The support leg extension mechanism 200T can change its length longitudinally so as to drive the support leg 100T to move longitudinally, that is, along the backward direction D2T shown in Figure 41 or the opposite direction.

[0156] The finger-pinch prevention rotation mechanism 500T is positioned between the support leg 100T and the support leg extension mechanism 200T. The finger-pinch prevention rotation mechanism 500T allows the support leg 100T to rotate around a lateral axis relative to the support leg extension mechanism 200T, that is, to rotate along the folding direction D1T shown in Figure 41 or the opposite direction.

[0157] The support leg 100T may be switched between the state shown in Figure 41 and the state shown in Figure 42 via the support leg extension mechanism 200T and the finger pinch prevention rotation mechanism 500T. Since the support leg 100T has two modes of movement, vertical movement and rotation around the horizontal axis, for the sake of understanding, the state in which the support leg 100T extends to the front of the main body 300T as shown in Figure 41 is called the extended state, and the state in which the support leg 100T extends along the vertical direction as shown in Figure 41 is also called the extended state. The state in which the support leg 100T is retracted into the main body 300T as shown in Figure 42 is called the retracted state, and the state in which the support leg 100T extends along the vertical direction as shown in Figure 42 is called the folded state.

[0158] When the support legs 100T are in the retracted and folded positions, the space occupied by the support legs 100T is minimized, and therefore, the carrier 1T is easier to transport.

[0159] Furthermore, the support leg 100T itself has a length that can be shortened, thus further reducing the space it occupies, but this is not the focus of this specification.

[0160] The components of carrier 1T of this disclosure will be schematically described with reference to Figure 43.

[0161] The support leg extension mechanism 200T includes a fixed sliding frame 210T (also called the first sliding frame), a movable sliding frame 220T (also called the second sliding frame), a locking member 240T, a decorative cover 250T, an auxiliary elastic member 260T, a pivot shaft 270T, a sliding pin 291T (also called a connecting element), a position regulating pin 292T, a position regulating spacer 293T, and an elastic member 293T.

[0162] In the application examples of this disclosure, the first sliding frame is a fixed sliding frame 210T attached to the main body 300T, and the second sliding frame is a movable sliding frame 220T rotatably connected to the support leg 100T. However, the disclosure is not limited thereto, and both the first and second sliding frames may be attached to a movable or fixed member. The fixed sliding frame 210T and the movable sliding frame 220T are slidably engaged with each other via connecting elements (i.e., sliding pins 291T) to adjust the length of the gap between the support leg 100T and the main body 300T. The length of this gap is the distance from the pivot point between the support leg 100T and the movable sliding frame 220T to the main body 300T. In this embodiment, the connecting element may be a single sliding pin 291T that penetrates the fixed sliding frame 210T and the movable sliding frame 220T along the lateral direction, or it may be two sliding pins 291T (not shown) positioned on either the lateral side of the fixed sliding frame 210T and the movable sliding frame 220T, respectively. Furthermore, it should be understood that in other embodiments, the connecting element may be arranged in other suitable forms such as a slide rail, slide block, or telescopic connecting rod, as long as it can support the longitudinal movement of the fixed sliding frame 210T relative to the movable sliding frame 220T. Alternatively, the connecting element may also be movably connected to the fixed sliding frame 210T and the movable sliding frame 220T by other means, such as a pivot connection. For example, the connecting element may be a rod-shaped body extending along the direction of movement, with the fixed sliding frame 210T and the movable sliding frame 220T being rotatably connected to both ends of the connecting element, respectively. When the connecting element rotates 180° relative to the fixed sliding frame 210T and the movable sliding frame 220T, the length of the gap between the support leg 100T and the main body 300T, corresponding to the length of the connecting element in the sliding direction, is adjusted. Alternatively, the connecting element may be a movable sliding frame sleeve-connected between the first sliding frame and the second sliding frame, respectively.

[0163] The fixed sliding frame 210T is attached to the longitudinal front of the main body 300T. The movable sliding frame 220T is slidably connected to the fixed sliding frame 210T longitudinally via a sliding pin 291T. The decorative cover 250T covers the top of the movable sliding frame 220T and can be sandwiched between the fixed sliding frame 210T and the movable sliding frame 220T to form a sandwich structure. The position regulating pin 292T is positioned on the movable sliding frame 220T and is slidably inserted longitudinally into the position regulating groove 212T of the fixed sliding frame 210T. The position regulating spacer 293T is positioned at the end of the position regulating pin 292T and abuts against the top of the position regulating groove 212T to prevent the position regulating pin 292T from separating vertically from the position regulating groove 212T.

[0164] The locking member 240T is positioned within the movable sliding frame 220T and engages with the fixed sliding frame 210T to lock the relative position between the fixed sliding frame 210T and the movable sliding frame 220T. The elastic member 294T is positioned within the locking member 240T and biases the locking member 240T to engage with the fixed sliding frame 210T. The auxiliary elastic member 260T is positioned between the main body 100T and the movable sliding frame 220T (see Figures 58A and 58B) and biases the movable sliding frame 220T to extend (i.e., located at the front end of the fixed sliding frame 210T). In other embodiments, the locking member 240T may also be positioned within the fixed sliding frame 220T and engage with the movable sliding frame 210T to lock the relative position between the fixed sliding frame 210T and the movable sliding frame 220T.

[0165] The support leg 100T is connected to the front end of the movable sliding frame 220T, specifically to a pivot shaft 270T located laterally within the movable sliding frame 220T, via a finger-pinch prevention rotating mechanism 500T. The finger-pinch prevention rotating mechanism 500T includes a pinch prevention cover 510T and a mounting seat 520T located inside the pinch prevention cover 510T. When the support leg 100T is in the folded position, the pinch prevention cover 510T covers the gap between the support leg 100T and the support leg extension mechanism 200T, which will be described in detail later. The top end of the support leg 100T has a floor contact indicator 101T, which can be observed through the decorative cover 250T to indicate whether the lower end of the support leg 100T is in contact with the floor. The floor contact indicator 101T is not the focus of this specification, so a detailed description of it is omitted.

[0166] The support leg extension mechanism 200T according to this disclosure will be further described with reference to Figures 44 and 45.

[0167] The fixed sliding frame 210T and the movable sliding frame 220T can move longitudinally relative to each other so that the support leg extension mechanism 200T can be switched between an extended state and a retracted state. Figure 44 shows the extended state with the movable sliding frame 220T positioned at the front end of the fixed sliding frame 210T. Figure 45 shows the retracted state with the movable sliding frame 220T positioned at the rear end of the fixed sliding frame 210T. The relative movement between the fixed sliding frame 210T and the movable sliding frame 220T is greater than or equal to the longitudinal dimension of the fixed sliding frame 210T or the longitudinal dimension of the movable sliding frame 220T.

[0168] The support leg extension mechanism 200T is switched between a retracted state and an extended state by relative sliding between the fixed sliding frame 210T and the movable sliding frame 220T. When the support leg extension mechanism 200T is in the retracted state shown in Figure 45, there is a relatively small gap between the support leg 100T and the main body 300T (not shown). When the support leg extension mechanism 200T is in the extended state shown in Figure 44, there is a relatively large gap between the support leg 100T and the main body 300T (not shown). Note that if sliding grooves are provided only on the fixed sliding frame 210T or the movable sliding frame 220T, the length of the sliding grooves is limited by the length of the fixed sliding frame 210T or the movable sliding frame 220T, and therefore, the relative movement of the fixed sliding frame 210T and the movable sliding frame 220T will be relatively short. In this disclosure, the fixed sliding frame 210T includes a fixed sliding groove 211T extending in the longitudinal direction, and the movable sliding frame 220T includes a movable sliding groove 221T extending in the longitudinal direction, with the fixed sliding groove 211T and the movable sliding groove 221T overlapping at least partially, and the support leg extension mechanism 200T further comprises a sliding pin 291T that penetrates the fixed sliding groove 211T and the movable sliding groove 221T. The fixed sliding groove 211T and the movable sliding groove 221T are connected by the fixed sliding groove 211T (also called the first sliding groove) formed in the fixed sliding frame 210T and the movable sliding groove 221T (also called the second sliding groove) formed in the movable sliding frame 220T, and the sliding pin 291T, thereby significantly increasing the relative movement stroke of the fixed sliding frame 210T and the movable sliding frame 220T.

[0169] Furthermore, the fixed sliding frame 210T is provided with a position regulating groove 212T that extends in the vertical direction, and the movable sliding frame 220T is provided with a position regulating pin 292T, which can be inserted into the position regulating groove 212T so as to slide in the vertical direction. Through the cooperation of the position regulating groove 212T and the position regulating pin 292T, the fixed sliding frame 210T and the movable sliding frame 220T can slide stably relative to each other, and thus relative rotation or tilting between them is avoided.

[0170] More specifically, the fixed sliding grooves 211T and the movable sliding grooves 221T are located on both lateral sides of the fixed sliding frame 210T and on both lateral sides of the movable sliding frame 220T, respectively, and the sliding pins 291T pass through each fixed sliding groove 211T and each movable sliding groove 221T in the lateral direction. That is, there are two fixed sliding grooves 211T and two fixed sliding grooves 211T. The two fixed sliding grooves 211T are located opposite the two lateral side walls of the fixed sliding frame 210T. The two movable sliding grooves 221T are located opposite the two lateral side walls of the movable sliding frame 220T. In this embodiment, the sliding pins 291T pass through the two fixed sliding grooves 211T and the two movable sliding grooves 221T, thereby improving the synchronization of sliding between the left and right sides and improving the mechanical strength of the connection. In other embodiments, two sliding pins may be provided. One sliding pin passes laterally through one fixed sliding groove 211T and one movable sliding groove 221T on the left side. The other sliding pin passes laterally through one fixed sliding groove 211T and one movable sliding groove 221T on the right side. The position regulating groove 212T and the position regulating pin 292T are located on the top walls of the fixed sliding frame 210T and the movable sliding frame 220T, respectively. However, the embodiment is not limited thereto. In other embodiments, the fixed sliding groove 211T and the movable sliding groove 221T may be located on two vertical sides of the fixed sliding frame 210T and two vertical sides of the movable sliding frame 220T, respectively, and the sliding pin 291T extends vertically in a corresponding manner. The position regulating grooves 212T may be located on both sides of the fixed sliding frame 210T in the lateral direction, and the position regulating pins 292T extend laterally in corresponding directions. The number of fixed sliding grooves 211T and movable sliding grooves 221T may be four or six, respectively.

[0171] An embodiment of the fixed sliding frame 210T according to this disclosure will be described in detail with reference to Figure 46A.

[0172] The fixed sliding frame 210T of this embodiment has the shape of a housing surrounded by three surfaces that extend substantially in the longitudinal direction. More specifically, the fixed sliding frame 210T has a top wall and two side walls connected to both sides of the top wall in the lateral direction. Two fixed sliding grooves 211T are formed symmetrically on the two side walls of the fixed sliding frame 210T and each extends in the longitudinal direction. A position regulating groove 212T is formed on the top wall of the fixed sliding frame 210T and extends in the longitudinal direction. In this embodiment, the longitudinal ends of the position regulating groove 212T do not extend beyond the range of the top wall; that is, the position regulating groove 212T has a closed shape at both ends. At least one first locking hole 215T is formed on the top wall of the fixed sliding frame 210T. In this embodiment, the two first locking holes 215T are located near the front end of the fixed sliding frame 210T (i.e., the right side in Figure 46A) and are distributed on both sides laterally of the position regulating groove 212T. The first locking holes 215T are elongated in shape and extend laterally, but are not limited to this, and the first locking holes 215T may be square or circular.

[0173] As previously mentioned with reference to Figures 44 and 45, the fixed sliding groove 211T and the position regulating groove 212T engage with the sliding pins 291T and 292T, respectively. The positions of the fixed sliding groove 211T and the position regulating groove 212T may also be interchangeable; for example, the fixed sliding groove 211T may be located on the top wall, and the position regulating groove 212T may be located on the side wall.

[0174] Another embodiment of the fixed sliding frame 210T according to this disclosure will be described in detail with reference to Figure 46B.

[0175] The fixed sliding frame 210T of this embodiment is substantially the same as the fixed sliding frame 210T of the previously described embodiment. The difference between the two is that the position regulating groove 212T of this embodiment extends from the rear end of the fixed sliding frame 210T (i.e., the left side in Figure 46B) to the outside of the fixed sliding frame 210T, that is, the position regulating groove 212T of this embodiment has a closed front end and an open rear end. In the retracted state, the position regulating pin 292T can slide out from the rear end of the position regulating groove 212T, and as a result, the combined length of the fixed sliding groove 211T and the movable sliding groove 221T can be greater than the length of the position regulating groove 212T. In the extended state, the overlapping portion of the wall surfaces of the fixed sliding frame 210T and the movable sliding frame 220T is relatively small, and lateral shaking or vertical rotation can easily occur between the sliding frames. The cooperation between the position regulating pin 292T and the position regulating groove 212T can reduce lateral shaking or vertical rotation between the sliding frames. In the retracted state, most of the wall surfaces of the fixed sliding frame 210T and the movable sliding frame 220T overlap, and even if the position regulating pin 292T slides out from the rear end of the position regulating groove 212T and no longer serves as a limiting force, lateral shaking or vertical rotation between the fixed sliding frame 210T and the movable sliding frame 220T is unlikely to occur. In this embodiment, a plurality of sets of first locking holes 215T are provided along the longitudinal direction of the fixed sliding frame 210T. The figure shows a pair of first locking holes 215T near the front end of the fixed sliding frame 210T and a pair of first locking holes 215T near the rear end of the fixed sliding frame 210T. However, it should be understood that more pairs of first locking holes 215T may be arranged longitudinally.

[0176] The first locking hole 215T is used to engage with a locking member 240T (see Figure 43) to lock the longitudinal relative position of the fixed sliding frame 210T and the movable sliding frame 220T. When multiple sets of first locking holes 215T are arranged longitudinally, the movable sliding frame 220T can be locked in multiple longitudinal positions relative to the fixed sliding frame 210T, including, but not limited to, the extended and retracted states.

[0177] It should be understood that the fixed sliding frame 210T of the above embodiment can be provided with multiple sets of first locking holes 215T in the vertical direction.

[0178] The movable sliding frame 220T according to this disclosure will be specifically described with reference to Figure 47.

[0179] The movable sliding frame 220T has the shape of a housing enclosed by three sides, extending substantially in the longitudinal direction. More specifically, the movable sliding frame 220T has a top wall and two side walls connected to both sides of the top wall in the lateral direction. The lateral dimensions of the movable sliding frame 220T may be slightly smaller than the lateral dimensions of the fixed sliding frame 210T so that it is housed inside the fixed sliding frame 210T. Two movable sliding grooves 221T are formed symmetrically on the two side walls of the movable sliding frame 220T and each extends in the longitudinal direction. In this embodiment, the movable sliding grooves 221T are located near the longitudinal rear end of the movable sliding frame 220T (i.e., the left side in Figure 47). It should be understood that the movable sliding grooves 221T may also be located at other longitudinal positions of the movable sliding frame 220T, for example, near the longitudinal front end. Furthermore, the movable sliding groove 221T may be located on the top wall of the movable sliding frame 220T, and the fixed sliding groove 211T may be located on the corresponding top wall of the fixed sliding frame 210T.

[0180] The second locking holes 225T are formed in the top wall of the movable sliding frame 220T. In this embodiment, the two second locking holes 225T are located near the rear end of the movable sliding frame 220T and are distributed laterally. The shape of each second locking hole 225T corresponds to the shape of each first locking hole 215T; that is, the shape of each second locking hole 225T may be an elongated shape extending laterally, or it may be a square or a circle.

[0181] The notch 224T is located on the top wall of the movable sliding frame 220T, for example, in the longitudinal front of the second lock hole 225T. The elastic member 294T is installed on the movable sliding frame 220T via the notch 224T, which will be described in detail later.

[0182] A locking groove 223T is further provided at the front end of the top wall of the movable sliding frame 220T. The locking groove 223T is concave and oriented vertically downward. The locking groove 223T is used to engage with the mounting seat 520T when the support leg 100T is in the extended position, and this will be described in detail below.

[0183] As shown in Figure 43, the pivot shaft 270T is positioned laterally between the two side walls of the movable sliding frame 220T in order to rotatably connect the support leg 100T to the movable sliding frame 220T.

[0184] The decorative cover 250T according to this disclosure will be described in detail with reference to Figure 48.

[0185] The decorative cover 250T is a structure enclosed by three sides, extending almost vertically, and closed at the front end. More specifically, the decorative cover 250T has a top wall, two side walls connected to both sides of the top wall in the lateral direction, and a front wall connected to the front ends of the top wall and the side walls. The decorative cover 250T covers the outside of the movable sliding frame 220T and may be located between the fixed sliding frame 210T and the movable sliding frame 220T (see Figures 54A to 54C).

[0186] The decorative cover holes 252T are formed in the top wall of the decorative cover 250T. In this embodiment, the two decorative cover holes 252T are located near the rear end of the movable sliding frame 220T and are distributed laterally. The shape of each decorative cover hole 252T corresponds to the shape of each first lock hole 215T and each second lock hole 225T; that is, the shape of each decorative cover hole 252T may be an elongated shape extending laterally, or it may be square or circular.

[0187] A window 253T is provided at the front end of the top wall of the decorative cover 250T, allowing the user to observe the floor contact indicator 101T through the window 253T. The floor contact indicator 101T is not the focus here, so a detailed description will be omitted.

[0188] A decorative cover sliding groove 251T can be provided on the side wall of the decorative cover 250T so that a sliding pin 291T passes through the decorative cover 250T.

[0189] It should be understood that the decorative cover 250T is not necessary to realize the main function of the support leg extension mechanism 200T. In some embodiments, the decorative cover 250T may be omitted.

[0190] The locking member 240T according to this disclosure will be specifically described with reference to Figure 49.

[0191] The locking member 240T is sheet-like in shape, extending substantially in the vertical and horizontal directions. One vertical end (i.e., the front end) of the locking member 240T is a lock release portion 241T. At least one lock projection 242T is provided at the other vertical end (i.e., the rear end) of the locking member 240T. The lock projection 242T extends vertically upward. In this embodiment, two lock projections 242T are arranged in the horizontal direction. In other embodiments, one lock projection 242T or three or more lock projections 242T may be provided.

[0192] In this embodiment, the locking projection 242T and the unlocking portion 241T are integrally formed. However, it should be understood that in other embodiments, the locking projection 242T and the unlocking portion 241T may be provided as multiple components. For example, the unlocking portion 241T may be provided as a slide block that moves in response to the traction of a traction member (not shown).

[0193] The elastic member 294T according to this disclosure will be described in detail with reference to Figure 50.

[0194] The elastic member 294T is a sheet-like structure extending almost vertically. A locking projection 294aT for engaging the elastic member 294T with the movable sliding frame 220T is located at the center of the elastic member 294T in the vertical direction, and this will be described in detail later.

[0195] The mounting seat 520T according to this disclosure will be described in detail with reference to Figures 51 and 52.

[0196] The mounting base 520T is substantially rectangular, and a position regulating hook 522T and at least one contact bar 521T are provided at the top of one of its longitudinal ends (i.e., the front end). In this embodiment, the two contact bars 521T are positioned on both sides of the mounting base 520T in the lateral direction, each extending forward from the top end of the mounting base 520T, and thus forming a protruding shape that extends outward in the longitudinal direction. The position regulating hook 522T is positioned in the lateral center of the mounting base 520T, is bent backward in the longitudinal direction, and thus forms a hook-shaped shape that extends inward in the longitudinal direction.

[0197] The mounting base 520T is also provided with a structure for engaging with the floor contact indicator 101T, but since the floor contact indicator 101T is not the focus of this specification, a detailed description of this structure is omitted herein.

[0198] The operation of the support leg extension mechanism 200T according to this disclosure will be explained with reference to Figures 53A to 53C.

[0199] As shown in Figure 53A, the support leg extension mechanism 200T is in the extended state. The movable sliding frame 220T extends from the front of the fixed sliding frame 210T in the longitudinal direction (i.e., the right side in Figure 53A), and as a result, the support leg 100T is in the foremost position. At this time, the front end of the fixed sliding groove 211T overlaps with the rear end of the movable sliding groove 221T. The sliding pin 291T is located at the front end of the fixed sliding groove 211T, i.e., at the rear end of the movable sliding groove 221T. Since the movable sliding frame 220T is located inside the fixed sliding frame 210T, the approximate position of the movable sliding groove 221T is shown by a dotted line in Figure 53A. In Figure 53A, it can also be seen that the position regulating pin 292T is located at the front end of the fixed sliding frame 210T.

[0200] As shown in Figure 53B, the support leg extension mechanism 200T is in an intermediate state between the extended and retracted states. At this time, the movable sliding frame 220T is partially retracted along the longitudinal direction to a position between the fixed sliding frame 210T, and the movable sliding groove 221T and the fixed sliding groove 211T overlap at least partially in the longitudinal direction. The sliding pin 291T may be positioned at any position in the overlapping portion of the fixed sliding groove 211T and the movable sliding groove 221T, and the dotted circle in Figure 53B indicates the possible positions of the sliding pin 291T.

[0201] Figure 53B also shows that the position regulating pin 292T is located between the fixed sliding frames 210T.

[0202] As shown in Figure 53C, the support leg extension mechanism 200T is in the retracted position. The movable sliding frame 220T is retracted to the rear in the longitudinal direction of the fixed sliding frame 210T (i.e., to the left in Figure 53C), and as a result, the support leg 100T is in the rearmost position. At this time, the rear end of the fixed sliding groove 211T overlaps with the front end of the movable sliding groove 221T. The sliding pin 291T is located at the rear end of the fixed sliding groove 211T, i.e., at the front end of the movable sliding groove 221T. Since the movable sliding frame 220T is located inside the fixed sliding frame 210T, the approximate position of the movable sliding groove 221T is shown by a dotted line in Figure 53C. In Figure 53C, it can also be seen that the position regulating pin 292T is located at the rear end of the fixed sliding frame 210T.

[0203] As can be seen from Figures 53A to 53C, the stroke between the extended and retracted states of the support leg extension mechanism 200T is approximately equal to the sum of the lengths of the fixed sliding groove 211T and the movable sliding groove 221T. Therefore, this stroke may be greater than the length of the fixed sliding frame 210T or the length of the movable sliding frame 220T, thus increasing the possible extension and retraction of the support leg 100T. The sliding pin 291T (i.e., the connecting element) is slidably connected to the fixed sliding frame 210T and the movable sliding frame 220T, respectively. The sliding direction of the sliding pin 291T relative to the fixed sliding frame 210T is opposite to the sliding direction of the sliding pin 291T relative to the movable sliding frame 220T while the support leg extension mechanism 200T is switched from the retracted state to the extended state.

[0204] Furthermore, although the support leg 100T is shown in the extended state in Figure 53A and in the folded state in Figures 53B and 53C, please understand that the support leg 100T may be in the extended or folded state at any position shown in Figures 53A to 53C.

[0205] Next, the operation of the support leg extension mechanism 200T according to this disclosure will be explained with reference to Figures 54A to 54C.

[0206] The cross-sectional views shown in Figures 54A to 54C make it clearer that the positional relationship between the fixed sliding groove 211T, the movable sliding groove 221T, and the sliding pin 291T changes as the movable sliding frame 220T moves. For specific changes, please refer to the previous explanation based on Figures 53A to 53C. The decorative cover 250T covers the movable sliding frame 220T and moves with the movable sliding frame 220T. Since the locking member 240T moves vertically with the movable sliding frame 220T, the locking member 240T can correspond to multiple vertical positions of the fixed sliding frame 210T. If the fixed sliding frame 210T is provided with multiple first locking holes 215T in the vertical direction (see Figure 46B), the locking member 240T can lock the movable sliding frame 220T to multiple vertical positions, including but not limited to the extended state and the fully locked state.

[0207] Next, the operation of the support leg extension mechanism 200T according to this disclosure will be explained with reference to Figures 55A to 55C.

[0208] From the top views shown in Figures 55A to 55C, it is clear that the position regulating pin 292T slides along the position regulating groove 212T as the movable sliding groove 221T moves, and moves to the rear end of the position regulating groove 212T when it is retracted. In embodiments where the rear end of the position regulating groove 212T is open (see Figure 46B), when the support leg extension mechanism 200T is in the retracted position, the position regulating pin 292T may detach from the position regulating groove 212T at the rear end of the position regulating groove 212T. Therefore, it is possible to allow the support leg extension mechanism 200T to have a larger extension stroke under the condition that the fixed sliding frame 210T has the same length, or to allow the length of the fixed sliding frame 210T to be shortened under the condition that the support leg extension mechanism 200T has the same extension stroke, and as a result the support leg extension mechanism 200T can save material and reduce weight.

[0209] The arrangement of the locking member 240T and the elastic member 294T will be explained with reference to Figures 56 and 57.

[0210] As shown in the top view of Figure 56, a position regulating pin 292T is provided at the top end of the movable sliding frame 220T, and notches 224T of the movable sliding frame 220T are provided on both sides of the position regulating pin 292T in the lateral direction. The locking projection 294aT of the elastic member 294T passes over the top surface of the movable sliding frame 220T from below and engages with the notches 224T.

[0211] As shown in the bottom view of Figure 57, the locking member 240T is positioned on the underside of the top wall of the movable sliding frame 220T, the elastic member 294T is positioned below the locking member 240T, and the position regulating pin 292T passes sequentially from bottom to top over the elastic member 294T, the locking member 240T, and the top wall of the movable sliding frame 220T. Therefore, the position regulating pin 292T assists in attaching the locking member 240T and the elastic member 294T to the movable sliding frame 220T. The locking projection 242T of the locking member 240T can pass through the second locking hole 225T in the top wall of the movable sliding frame 220T. In this embodiment, the locking member 240T and the elastic member 294T are positioned on the movable sliding frame 220T, and the locking member 240T can engage with the fixed sliding frame 210T to lock the relative position between the fixed sliding frame 210T and the movable sliding frame 220T.

[0212] The operation of the locking member 240T will be described with reference to Figures 58A and 58B. The vertical center of the locking member 240T abuts against the top wall of the movable sliding frame 220T, forming the pivot point of the lever. In the locked state shown in Figure 58A, the locking projection 242T is inserted into the first locking hole 215T of the fixed sliding frame 210T, and at this time the movable sliding frame 220T is locked to the fixed sliding frame 210T. The user can push the unlocking portion 241T of the locking member 240T upward to pry open the locking member 240T, causing the locking projection 242T to move away from the first locking hole 215T. As a result, the locking member 240T is converted to the unlocked state shown in Figure 58B, which allows the movable sliding frame 220T to move relative to the fixed sliding frame 210T. The elastic member 294T is provided to bias the locking projection 242T toward the second locking hole 225T.

[0213] In an embodiment in which the locking member 240T is attached to the fixed sliding frame 210T, the locking projection 242T is inserted into the second locking hole 225T of the movable sliding frame 220T. The locking projection can be disengaged from the second locking hole 225T by user operation.

[0214] The finger-pinch prevention rotating mechanism 500T according to this disclosure will be described in detail with reference to Figures 59A to 59C.

[0215] The finger-pinch prevention rotation mechanism 500T includes a pinch prevention cover 510T and a mounting base 520T. The pinch prevention cover 510T includes an arc-shaped surface extending around a transverse axis (see also Figure 43). The pinch prevention cover 510T is configured to rotate around a transverse axis, for example, around a laterally extending pivot axis 270T. The lower end of the pinch prevention cover 510T has a stepped portion 511T extending inward (i.e., rearward in the longitudinal direction) of the pinch prevention cover 510T.

[0216] For details on the structure of the mounting base 520T, please refer to the relevant explanations in Figures 51 and 52.

[0217] The mounting base 520T is positioned to rotate around the pivot axis 270T together with the support leg 100T, and the decorative cover 250T can be rotated by being driven by either the support leg 100T or the mounting base 520T.

[0218] When the support leg 100T is in the extended position shown in Figure 59A, the anti-pinch cover 510T is located inside the decorative cover 250T, specifically near the inside of the front wall of the decorative cover 250T. That is, the decorative cover 250T is positioned on the support leg extension mechanism 200T, and a accommodating space for housing the anti-pinch cover 510T is formed between the decorative cover 250T and the support leg extension mechanism 200T. The mounting seat 520T is located near the top wall of the decorative cover 250T, and the position-restricting hook 522T of the mounting seat 520T abuts against the locking groove 223T of the movable sliding frame 220T to prevent the mounting seat 520T from continuously rotating upward (i.e., counterclockwise in Figure 59A). The position-restricting hook 522T also engages with the locking groove 223T to restrict the support leg 100T to the extended position. The contact bar 521T of the mounting base 520T is located near the top wall of the decorative cover 250T, and therefore the contact bar 521T is located near the top edge of the anti-pinch cover 510T.

[0219] Starting from the extended position shown in Figure 59A, when the user rotates the support leg 100T toward the folded position, the mounting base 520T rotates downward (i.e., clockwise in Figure 59A) together with the support leg 100T.

[0220] When the support leg 100T is rotated by a first angle from the deployed position shown in Figure 59A, the support leg 100T is in the intermediate position shown in Figure 59B. During the rotation process from the deployed position to the intermediate position, the contact bar 521T does not come into contact with the stepped portion 511T of the anti-pinch cover 510T, so the mounting base 520T does not drive the anti-pinch cover 510T. When the support leg 100T has rotated to the intermediate position and the contact bar 521T of the mounting base 520T has rotated to the bottom end of the anti-pinch cover 510T, the contact bar 521T comes into contact with the stepped portion 511T of the anti-pinch cover 510T.

[0221] Starting from the intermediate position shown in Figure 59B, the support leg 100T and the mounting seat 520T continue to rotate downward (i.e., clockwise in Figure 59B) to reach the folded position shown in Figure 59C. During the process from Figure 59B to Figure 59C, the contact bar 521T comes into contact with the stepped portion 511T of the pinch prevention cover 510T, causing the pinch prevention cover 510T to rotate downward together with the mounting seat 520T. The stepped portion 511T and the contact bar 521T may have matching shapes. The rotation angle from the unfolded position to the intermediate position can be called the first angle, and the rotation angle from the unfolded position to the folded position can be called the second angle. The second angle is greater than the first angle; for example, the first angle may be 30 to 60 degrees and the second angle may be 90 degrees. Thus, the process by which the support leg 100T rotates by the first angle is a free stroke in which the anti-pinch cover 510T is not driven, thereby saving storage space within the decorative cover 250T.

[0222] Referring to Figure 59C, when the support leg 100T is rotated to the folded position, the mounting base 520T is positioned below the decorative cover 250T, and the anti-pinch cover 510T is rotated to a position between the mounting base 520T and the decorative cover 250T, thus covering the gap between the mounting base 520T and the decorative cover 250T. This prevents the user's hand from being caught in the gap between the mounting base 520T and the decorative cover 250T when moving the support leg 100T from the folded position to the extended position.

[0223] When a user moves the support leg 100T from the folded position to the extended position, the support leg 100T contacts the bottom edge of the pinch-prevention cover 510T while rotating counterclockwise in Figure 59B, so as the support leg 100T rotates counterclockwise to drive the pinch-prevention cover 510T and return to the extended position shown in Figure 59A.

[0224] In this disclosure, a finger-pinch prevention rotating mechanism 500T connected to the support leg extension mechanism 200T is described, but the finger-pinch prevention rotating mechanism 500T can be attached to any suitable connection point between the support leg 100T and the main body 300T. The pinch prevention cover 510T and the support leg 100T are rotated on the same pivot axis 270T. Since the pivot axis 270T is off the longitudinal extension line of the support leg 100T, the cooperation between the support leg 100T and the sliding frame becomes more compact.

[0225] While preferred embodiments have been shown and described herein, it should be understood that these embodiments are given only as examples. Those skilled in the art will be able to conceive of many variations, modifications, and substitutions without departing from the spirit of this disclosure. Accordingly, the appended claims are intended to cover all such variations that fall within the spirit and scope of this disclosure. [Explanation of Symbols]

[0226] 10 Support legs 101 First tube 101a Position regulation part 101b Adjustment device 102 Second tube 100 Contact Indicator Mechanism 110 Indicators 111 First Domain 112 Second Domain 113 First containment section 114 Movable axis 120 Mounting components 130 Drive Member 131 Contact area 132 Column Holes 133 Second containment section 135 Shoulder 140 Fixed seat 141 Columns 150 Towing Member 151 First end of traction member 152 Second end of the traction member 155 Towing component sleeve The first end of the traction member sleeve 155a The second end of the traction member sleeve 155b The winding part 155c The adjustment part 155d The extending part 155e The holding sleeve 156 The first end of the holding sleeve 156a The second end of the holding sleeve 156b The decorative cover 160 The hollow part or transparent window 166 The bracket 170 The sliding mechanism 171 The first screw 181 The first elastic member 182 The second elastic member 183 The second screw 184 The carrier 200 The base 210 The seat 220 The inner diameter of the second tube D1 The diameter of the winding part D2 The length of the holding sleeve L1 The length of the adjustment part L2 The child seat 1S The base 10S The first cover part 11S The second cover part 12S The buffer part 121S The deformation groove 122S The deformation space 123S The fixed bracket 13S The lock hole 131S The concave groove 132S The movable bracket 14S The restoring member 141S The locking member 15S The locking seat 151S The locking pin 152S The driving member 153S The buffer part 16S The protrusion part 161S The cams 17S, 17BS The protrusion part 171BS The first protruding surface of 1711BS The second protruding surface of 1712BS The rotation axis of 172S and 172BS The elastic member of 173S The base housing of 18S The accommodating part of 181S The locking mechanism of 182S The recess of 183S The blocking protrusion of 184S The locking member of 185S The buffer member of 19S The protrusion of 191S The first surface of 1911S The second surface of 1912S The support leg of 20S The first section of 210S The second section of 220S The seat part of 30S The linkage of 40S The carrier of 1T The support leg of 100T The floor contact indicator of 101T The support leg telescoping mechanism of 200T The fixed sliding frame of 210T The fixed sliding groove of 211T The position regulating groove of 212T The first locking hole of 215T The third locking hole of 216T The movable sliding frame of 220T The movable sliding groove of 221T The locking groove of 223T The notch of 224T The second locking hole of 225T The locking member of 240T The unlocking part of 241T The locking protrusion of 242T The decorative cover of 250T The decorative cover sliding groove of 251T The decorative cover hole of 252T The window of 253T The auxiliary elastic member of 260T The rotation axis of 270T The sliding pin of 291T 292T Positioning pin 293T Position Restriction Spacer 294T Elastic material 294aT Locking protrusion 300T main unit 500T Finger pinch prevention rotating mechanism 510T Anti-pinch cover 511T Step section 520T Mounting base 521T Contact Bar 522T Positioning Hook D1T Folding Direction D2T Reverse direction

Claims

1. A support leg assembly used in a child carrier, comprising an extendable support leg and a contact indicator mechanism, The support leg has opposing indicator ends and contact ends, The aforementioned contact indicator mechanism is An indicator positioned at the end of the indicator and movable between a first position and a second position to indicate whether or not the support leg is in contact with the surface, A drive member is movably positioned at the contact end, A traction member including a first end connected to the indicator and a second end connected to the contact end, The towing member includes a retaining sleeve which is sleeve-connected to the first end of the towing member and prevents a portion of the towing member from bending, When the contact end contacts the surface, the drive member drives the traction member to slide against the retaining sleeve, and the traction member further drives the indicator. The aforementioned support legs are The first tube near the indicated end, The present invention further includes a second tube located near the contact end and capable of sliding relative to the first tube to adjust the length of the support leg, The contact indicator mechanism is provided with a position regulating section, and the traction member bypasses the position regulating section. A support leg assembly wherein the position regulating portion is located inside the first tube and at one end of the first tube away from the indicated end, and the position regulating portion is positioned so that the distance between the position regulating portion and the indicated end does not change even if the length of the support leg changes.

2. The retaining sleeve has a first end that is away from the second end of the traction member and a second end that is close to the second end of the traction member. The support leg assembly according to claim 1, wherein the second end of the retaining sleeve is connected to the drive member, and when the contact indicator mechanism contacts the surface, the drive member drives the second end of the retaining sleeve away from the contact end, thereby causing the traction member to move toward the contact end relative to the retaining sleeve and drive the indicator.

3. The aforementioned contact indicator mechanism is The traction member sleeve is further connected to the outside of the traction member, The aforementioned traction member sleeve is The first end of the traction member sleeve connected to the indicated end, Including a second end of a traction member sleeve which is connected to the first end of the retaining sleeve or to the drive member, The traction member sleeve is bendable within the contact indicator mechanism. The support leg assembly according to claim 2, wherein the traction member sleeve and the retaining sleeve are integrally arranged, and the flexibility of the traction member sleeve is greater than the flexibility of the retaining sleeve.

4. The aforementioned traction member sleeve is The extending portion of the traction member sleeve extending from the first end, A winding portion connected to the aforementioned extending portion and wound at a certain angle, It includes an adjustment portion connected to the winding portion and extending in the opposite direction to the extending portion, When the length of the support leg is changed, the length of the extended portion and the length of the adjustment portion are changed. The support leg assembly according to claim 3, wherein the drive member is movable between an extended position and a retracted position relative to the contact end, and when the contact end comes into contact with the surface, the drive member moves in response from the extended position to the retracted position to drive the second end of the retaining sleeve away from the contact end.

5. The diameter D2 of the winding portion is smaller than the inner diameter D1 of the support leg near the contact end, or The sum of the diameter D2 of the winding portion and the length L2 of the adjustment portion is less than the length L1 of the retaining sleeve, or The support leg assembly according to claim 4, wherein the sum of the diameter D2 of the winding portion and the maximum adjustable length range of the support leg is less than the length L1 of the retaining sleeve.

6. Bass and, A support leg is rotatably connected to the base and rotatable relative to the base, A carrier comprising a first buffer mechanism disposed between the base and the support leg and capable of contacting at least one of the base and the support leg, The first buffer mechanism is formed to resist the rotational movement of the support leg relative to the base, The support leg can rotate between a folded position and an unfolded position, and the first cushioning mechanism includes a cushioning portion that provides resistance to a part of the rotation path of the support leg from the folded position to the unfolded position. The cushioning portion is formed as an elastic convex rib or a bendable elastic sheet, and the cushioning portion is formed on the support leg, and in the process of the support leg moving from the folded position to the unfolded position, the cushioning portion comes into contact with the base, thereby elastically deforming the cushioning portion and hindering the rotation of the support leg, or A carrier wherein the buffer portion is formed on the base, and as the support legs move from the folded position to the unfolded position, the buffer portion comes into contact with the support legs, thereby elastically deforming and hindering the rotation of the support legs.

7. The carrier according to claim 6, comprising a first cover portion and a second cover portion, wherein the first cover portion is positioned on the base, the second cover portion is rotatably connected to the base, the cushioning portion is formed on the second cover portion, and when the support legs move from the folded position to the unfolded position, the support legs drive the second cover portion to rotate, the cushioning portion abuts against the first cover portion in the process of the second cover portion rotating, and at least one of the cushioning portion, the first cover portion, and the second cover portion is formed of an elastic material.

8. The carrier according to claim 7, wherein deformation grooves are formed on both sides of the cushioning portion in the second cover portion, and a deformation space is provided between the cushioning portion and the support legs.

9. A projection is formed on the buffer portion, and another projection is formed on the cam. The projection on the cam includes a first projection surface and a second projection surface, the projection on the buffer portion can contact the first projection surface to inhibit the rotation of the support leg from the folded position to the deployed position, and the projection on the buffer portion can contact the second projection surface to accelerate the rotation of the support leg from the folded position to the deployed position. The carrier according to any one of claims 6 to 8, wherein when the support leg is in the folded position, the first projection surface is closer to the projection on the buffer portion than the second projection surface.

10. The carrier according to claim 9, further comprising an elastic member connected to the support leg and capable of biasing the support leg in a rotational direction toward the deployed position.

11. The base has a connecting portion rotatably connected to the support leg, and a storage space for accommodating the second cover portion is formed between the first cover portion, the connecting portion, and the support leg, and when the support leg is in the deployed position, the support leg pushes and rotates the second cover portion so that the second cover portion is accommodated in the storage space. The carrier according to any one of claims 6 to 10, wherein the second cover portion is provided with a stepped portion, a contact bar protruding from the support leg is provided at one end of the support leg, and when the support leg rotates from the deployed position to the folded position, the contact bar pulls the stepped portion, causing the second cover portion to rotate together with the support leg to cover the gap between the support leg and the connecting portion.

12. The carrier according to claim 11, wherein the support legs have an intermediate position between the deployed position and the folded position, the contact bar does not contact the stepped portion when the support legs rotate from the deployed position to the intermediate position, and the contact bar contacts the stepped portion in the process of the support legs rotating from the intermediate position to the folded position, causing the second cover portion to rotate together with the support legs.

13. A base that holds a fixed bracket, A movable bracket slidably connected to the fixed bracket, Support legs connected to the aforementioned movable bracket, A cushioning mechanism is disposed between the base and the movable bracket and is capable of contacting at least one of the base and the movable bracket. A carrier comprising a restoring member connected to the movable bracket and capable of biasing the movable bracket in a sliding direction away from the base, The movable bracket can slide between an extended position and a retracted position, the buffer mechanism provides resistance to a portion of the movement path of the movable bracket from the retracted position to the extended position, the buffer mechanism includes a locking member, the fixed bracket is fixed within the base housing of the base, the movable bracket is slidably positioned on the fixed bracket, and the locking member is positioned protruding from the movable bracket. The cushioning mechanism includes a cushioning member, one end of which is fixed within the base housing, and the cushioning member abuts against the locking member, thereby providing resistance to a portion of the movement path of the support leg from the retracted position to the extended position. The carrier is formed as an elastic sheet, and the elastic sheet has protrusions formed thereon for contacting the locking member.

14. The carrier further includes a restoration member, The carrier according to claim 13, wherein the restoring member is connected to the movable bracket and can bias the movable bracket in a sliding direction away from the base.

15. The carrier according to claim 13 or 14, wherein the projection includes a first surface and a second surface connecting the first surface, the angle between the second surface and the horizontal direction is greater than the angle between the first surface and the horizontal direction, and when the locking member contacts the first surface, the buffer member applies a thrust to the locking member in the direction toward the retracted position, and when the locking member contacts the second surface, the buffer member applies a thrust to the locking member in the direction toward the extended position.

16. A support leg extension mechanism used in carriers, Support legs and A first sliding frame connected to the main body of the carrier, A second sliding frame connected to the support leg, It includes a connecting element that is movably connected to the first sliding frame and the second sliding frame, respectively. The first sliding frame and the second sliding frame are slidably fitted together via the connecting element, and the length of the distance between the support leg and the main body is adjusted to be greater than the length of the first sliding frame or the second sliding frame in the sliding direction. The support leg extension mechanism is switched between a retracted state and an extended state by relative sliding between the first sliding frame and the second sliding frame, the first sliding frame has a first sliding groove extending along the sliding direction, and the second sliding frame includes a second sliding groove extending along the sliding direction, and the first sliding groove and the second sliding groove always overlap at least partially. The connecting element is a sliding pin, which penetrates the first sliding groove and the second sliding groove and can slide freely along the first sliding groove and the second sliding groove, respectively, in a support leg extension mechanism.

17. The first sliding frame has two first sliding grooves, and the two first sliding grooves are formed on two opposing sides of the first sliding frame, The second sliding frame has two second sliding grooves, and the two first sliding grooves are formed on two opposing sides of the second sliding frame, The support leg extension mechanism according to claim 16, wherein the sliding pin penetrates each of the first sliding grooves and each of the second sliding grooves.

18. The support leg extension mechanism according to claim 16 or 17, wherein the support leg extension mechanism is switched between a retracted state and an extended state by relative sliding between the first sliding frame and the second sliding frame, and when the support leg extension mechanism is in the retracted state, there is a first distance between the support leg and the main body, and when the support leg extension mechanism is in the extended state, there is a second distance between the support leg and the main body, the length of the second distance being greater than the length of the first distance.

19. The first sliding frame has a first sliding groove extending along the sliding direction, and the second sliding frame includes a second sliding groove extending along the sliding direction, the first sliding groove and the second sliding groove always overlap at least partially, and the connecting element is inserted into the first sliding groove and the second sliding groove, respectively. The support leg extension mechanism according to claim 18, wherein when the support leg extension mechanism is in the extended state, the connecting element abuts against the front end of the first sliding groove and the rear end of the second sliding groove, and when the support leg extension mechanism is in the retracted state, the connecting element abuts against the rear end of the first sliding groove and the front end of the second sliding groove.

20. The aforementioned support leg extension mechanism further includes a locking member, The support leg extension mechanism according to any one of claims 16 to 19, wherein the locking member is configured to lock the support leg extension mechanism in the extended state, and the locking member is provided with a lock release portion.

21. The aforementioned support leg extension mechanism is, The system further includes a locking member configured to lock the support leg extension mechanism in the extended state and the retracted state, The locking member is positioned on the second sliding frame or the first sliding frame. The support leg extension mechanism according to any one of claims 16 to 20, wherein the locking member is provided with a locking projection, the first sliding bracket is provided with a first locking hole, the second sliding bracket is provided with a second locking hole, and the locking projection engages with the first locking hole and the second locking hole to achieve locking in the extended state.

22. The first sliding frame is further provided with a third locking hole, and the locking projection engages with the third locking hole and the second locking hole to achieve locking in the retracted position. The aforementioned support leg extension mechanism further includes an auxiliary elastic member, The support leg extension mechanism according to claim 21, wherein the auxiliary elastic member is connected to the main body and the second sliding frame, respectively, and the elastic force of the auxiliary elastic member biases the support leg toward the main body.

23. The first sliding frame is provided with a position-regulating groove extending in the sliding direction, and the second sliding frame is provided with a position-regulating pin, the position-regulating pin slides and fits with the position-regulating groove in the sliding direction. The support leg extension mechanism according to claim 21 or 22, wherein the rear end of the position regulating groove is closed or open.

24. The support leg extension mechanism according to claim 23, wherein the locking projection and the unlocking portion are formed as an integrated body, and the integrated body and the elastic member are attached to the second sliding frame via the position regulating pin.

25. The support leg extension mechanism according to claim 23 or 24, wherein the elastic member is provided with a plurality of locking projections, the top wall of the second sliding frame is provided with a plurality of notches, and the locking projections cooperate with the notches to fix the elastic member to the second sliding frame.

26. The locking member is provided with a lock release portion, and the lock release portion is located at the lower part of the position regulating groove. The support leg extension mechanism according to any one of claims 23 to 25, wherein the support leg is rotatably connected to the second sliding frame, the second sliding frame is provided with a housing space, and when the support leg rotates toward the main body, a part of the support leg is housed in the housing space, and the integrated main body is attached to the inner wall of the housing space.

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