child seat

Abstract

In the child car seat, the turntable is positioned above the base and can rotate relative to the base between a forward position and a rearward position around a substantially vertical axis, the seat is positioned above the turntable and can rotate together with the turntable, the forward position being a position where the turntable allows the seat to face forward, and the rearward position being a position where the turntable allows the seat to face rearward, the misuse prevention mechanism is provided between the base, the turntable, and the seat and includes an operating member, the operating member is attached to the child car seat and can move between a first position and a second position relative to the seat, the misuse prevention mechanism prevents or allows relative movement between the turntable and the base, the operating member automatically moves to the first position when it passes an intermediate position between the first position and the second position and approaches the first position, and the operating member automatically moves to the second position when it passes the intermediate position and approaches the second position.

Description

Technical Field

[0001] The present disclosure relates to a child seat provided with a misuse prevention mechanism.

Background Art

[0002] A child seat is fixed to a vehicle such as an automobile and provides a safe riding environment for a child.

[0003] In some cases, the child seat is rotatable 360 degrees about a vertical axis, that is, it is provided so as to be rotatable between a forward position (the seat faces the traveling direction of the vehicle) and a rearward position (the seat faces the traveling direction away from the vehicle). To ensure safety, children under 15 months old usually need to use the child seat in the rearward position. Also, in order to prevent accidentally placing a child under 15 months old on the child seat in the forward position, a child seat provided with a misuse prevention mechanism in the rotation direction is provided.

[0004] In such a child seat provided with a misuse prevention mechanism, the user can switch between an unlock mode in which the child seat can be switched to the forward position via an operation member of the misuse prevention mechanism and a lock mode in which the child seat cannot be switched to the forward position. However, in the conventional misuse prevention mechanism, there is no mechanism for automatically pressing and positioning the operation member, and the operator may not operate the operation member to a predetermined position. As a result, the mode of the seat may not actually be switched, and ultimately the seat may be used in the wrong orientation, which may have an adverse effect on the traveling safety of the child.

[0005] Generally, a turntable for rotating the seat between the forward position and the rearward position is provided between the seat and the base. In some cases, it is desirable for the seat to be separated from the turntable in order to replace the seat or move the seat to another use environment.

[0006] Therefore, there is a need to provide a child car seat misuse prevention mechanism that automatically pushes and positions the operating member, and separates the seat from the turntable. [Overview of the Initiative]

[0007] This disclosure provides a child seat comprising a base, a turntable, a seat, and a misuse prevention mechanism, wherein the turntable is located above the base and can rotate between a forward position and a rear position relative to the base about a substantially vertical axis, the seat is located above the turntable and can rotate with the turntable, the forward position being a position that allows the turntable to orient the seat forward, and the rear position being a position that allows the turntable to orient the seat rearward, the misuse prevention mechanism is provided between the base, the turntable, and the seat and includes an operating member, the operating member is attached to the child seat and can move between a first position and a second position relative to the seat, thereby preventing or allowing relative rotation between the turntable and the base, the operating member automatically moves to the first position when it approaches the first position passing through an intermediate position between the first and second positions, and the operating member automatically moves to the second position when it approaches the second position passing through an intermediate position.

[0008] In one embodiment, the misuse prevention mechanism further includes a positioning member, which is positioned in the child seat and in contact with the operating member such that when the operating member approaches the first or second position, it automatically moves the operating member to the first or second position.

[0009] In one embodiment, the operating member includes a ridge that protrudes from and contacts the positioning member, such that the operating member automatically moves to the first or second position.

[0010] In one embodiment, the operating member includes a sliding portion and two positioning recesses, the sliding portion being slidable relative to the child seat, and the two positioning recesses being positioned on the sliding portion. The positioning member includes a projection. When the operating member is positioned near the intermediate position, the projection abuts against the ridge, and the operating member automatically moves to the first or second position, and after the operating member has passed the intermediate position and is close to the first or second position, the projection abuts against the corresponding positioning recess, pushing the operating member to the first or second position.

[0011] In one embodiment, the operating member further includes a toggle portion, which is connected to the sliding portion and configured to drive the sliding portion to slide relative to the child seat.

[0012] In one embodiment, each of the positioning recesses extends in an arc shape relative to the sliding portion, and the protruding portion has an arc-shaped contour corresponding to the positioning recess.

[0013] In one embodiment, the protruding portion can move relative to the positioning member body.

[0014] In one embodiment, the ridge is formed between the two positioning recesses, and the ridge is formed in an arc shape at a position facing the protrusion.

[0015] In one embodiment, the misuse prevention mechanism further includes a linkage that oscillates around a lateral axis, and the operating member abuts against one end of the linkage and drives the linkage to oscillate by the lateral movement of the operating member.

[0016] In one embodiment, the operating member includes an inclined surface, the upper surface of which extends diagonally such that one end is laterally higher than the other. The linkage includes a handle that is held against the upper surface of the inclined surface and a pivot provided at a distance from the handle, and the linkage is configured to oscillate about the pivot. When the operating member moves from the first position to the second position or from the second position to the first position, the handle contacts the upper surface of the inclined surface and slides, driving it to move vertically and cause the linkage to oscillate.

[0017] In one embodiment, the pivot engages with the underside of a crossbar attached to the seat, thereby allowing the linkage to swing about the crossbar.

[0018] In one embodiment, the misuse prevention mechanism further includes a push member, which is provided on the seat and whose vertical movement is restricted. The other end of the linkage relative to the handle is coupled to the upper end of the push member, and the linkage is oscillated to drive the push member to move vertically.

[0019] In one embodiment, the linkage further includes a fork located at the other end of the linkage relative to the handle, and has two arms provided on both sides laterally relative to the longitudinal center of the push member, the push member being rotatably connected between the two arms via a push member pin.

[0020] In one embodiment, the misuse prevention mechanism further includes a drive unit Material Includes, drive unit Material The push member is provided on the turntable and is positioned vertically below the push portion, restricting its vertical movement. The lower end of the push member abuts against the upper end of the drive member, and the vertical movement of the push member allows the drive member to move vertically.

[0021] In one embodiment, the misuse prevention mechanism further includes a driven member, which is provided within the turntable and whose vertical movement is restricted. The lower end of the pushing member abuts against the upper end of the driving member, and the vertical movement of the pushing member can cause the driving member to move vertically.

[0022] In one embodiment, the driven member is provided with two longitudinally extending side walls and an open top, and each of the side walls is symmetrically provided with a slide groove having an inclined edge with respect to the longitudinal direction. The driving member is provided with a driving member pin extending laterally outward from each of the opposing sides of the driving member, and the driving member pin is inserted into the corresponding slide groove and held against the corresponding inclined edge.

[0023] In one embodiment, the child seat further includes a projection, at least partially provided within the turntable, which is movable between a locked position in which the projection extends from the turntable and an unlocked position in which the projection retracts into the turntable. The driven member is provided near the outside of the turntable, and longitudinal movement of the driven member drives the projection to move between the locked and unlocked positions.

[0024] In one embodiment, the misuse prevention mechanism further includes a positioning member spring, a pushing member spring, and a drive member spring, wherein the positioning member spring is provided between the positioning member and the seat and biases the positioning member upward, the pushing member spring is provided between the pushing member and the seat and biases the pushing member upward, and the drive member spring is provided between the drive member and the turntable and biases the drive member upward.

[0025] In one embodiment, the slide groove is a groove having a substantially right-angled triangle shape, and the hypotenuse of the right-angled triangle is located on a longitudinal side surface of the slide groove and functions as the inclined edge portion. The misuse prevention mechanism further includes a driven member spring provided between the driven member and the turntable and biasing the driven member so as to tend to move outwardly of the turntable, whereby the driven member tends to drive the protrusion to extend from the turntable.

[0026] In one embodiment, the turntable includes a disk portion located below the turntable. The base includes an opening and a block portion. The opening is located above the base and is circular, and the disk portion is rotatably engaged with the opening, and the block portion is located at an edge of the opening. When the protrusion is in the lock position, the protrusion interferes with the block portion to limit the rotation range of the turntable with respect to the base.

[0027] In one embodiment, the seat is selectively separated from the turntable.

Brief Description of the Drawings

[0028] [Figure 1] It is a side view of a child seat in a rear position. [Figure 2] It is a side view of a child seat in a front position. [Figure 3] It is a front view of the seat of a child seat when the operating member is in the first position (i.e., the lock position). [Figure 4] It is a front view of the seat of a child seat when the operating member is in the second position (i.e., the unlock position). [Figure 5] It is a perspective view of the base and the turntable. [Figure 6] It is a perspective view of the turntable. [Figure 7] It is a perspective view of the base. [Figure 8]This is a cross-sectional view of a child car seat along its longitudinal direction, with the misuse prevention mechanism in the unlocked position. [Figure 9] Figure 8 is a magnified view of the frame section. [Figure 10] This is a cross-sectional view along the vertical direction of a child car seat with the misuse prevention mechanism in the locked position. [Figure 11] This is a magnified view of the frame portion of Figure 10. [Figure 12] This is a partially exploded perspective view showing the operating member, linkage, pressing member, and sheet of the misuse prevention mechanism in this disclosure. [Figure 13] This is a magnified view of the frame portion shown in Figure 12. [Figure 14] This is a bottom perspective view of the operating member of the misuse prevention mechanism in this disclosure. [Figure 15] This is a perspective view of the positioning member of the misuse prevention mechanism in this disclosure. [Figure 16] This is a side cross-sectional view showing the seat, turntable, and part of the misuse prevention mechanism, with the misuse prevention mechanism in the locked position. [Figure 17] This is a magnified view of the frame portion of Figure 16. [Figure 18] This is a side cross-sectional view showing the seat, turntable, and a portion of the misuse prevention mechanism when the misuse prevention mechanism is in the unlocked position. [Figure 19] This is a magnified view of the frame portion of Figure 18. [Figure 20] This is a perspective view showing part of the turntable and the misuse prevention mechanism. [Figure 21] This is a magnified view of the frame portion of Figure 20. [Figure 22] This is a perspective view of the driven member of the misuse prevention mechanism in this disclosure. [Figure 23] This is a side cross-sectional view showing the turntable with the misuse prevention mechanism in the unlocked position and several parts of the misuse prevention mechanism. [Figure 24] This is a side cross-sectional view showing a turntable with the misuse prevention mechanism in the locked position and a part of the misuse prevention mechanism. [Modes for carrying out the invention]

[0029] While this disclosure is illustrated and described herein with reference to specific embodiments, this disclosure should not be limited to the illustrated details. Rather, various modifications can be made to these details within the scope of the equivalents of the claims without departing from this disclosure.

[0030] Furthermore, the use of directional terms such as "front," "back," "up," and "down" within this document is for ease of understanding, and this disclosure is not limited to these directions, but can be adapted to the actual situation. While this disclosure has been described with reference to typical embodiments, the terminology used is illustrative and illustrative, and not restrictive.

[0031] Referring to Figures 1 and 2, the child seat 1 in this disclosure is shown as a whole. The child seat 1 includes a base 300, a turntable 200, a seat 400, and a misuse prevention mechanism 100.

[0032] The base 300 is located beneath the child seat 1 to secure it to a vehicle such as a car.

[0033] The turntable 200 is positioned above the base 300 and can rotate between a forward position and a backward position relative to the base 300 about an effective vertical axis.

[0034] The seat 400 is positioned above the turntable 200 and can rotate together with the turntable 200. That is, the turntable 200 can switch the seat 400 between a forward position and a rearward position. Here, the forward position shown in Figure 2 is the position that allows the turntable 200 to orient the seat 400 forward (i.e., in the direction of travel of the vehicle), and the rearward position shown in Figure 1 is the position that allows the turntable 200 to orient the seat 400 rearward.

[0035] The misuse prevention mechanism 100 is positioned between the base 300, the turntable 200, and the seat 400. The misuse prevention mechanism 100 can prevent or allow relative rotation between the turntable 200 and the base 300.

[0036] Depending on the application, the sheet 400 is configured to be detachably coupled to the turntable 200. The misuse prevention mechanism 100 of this disclosure is configured to enable separation and engagement between the sheet 400 and the turntable 200.

[0037] Referring to Figures 3 and 4, the seat 400 of child seat 1 is shown.

[0038] At least a portion of the misuse prevention mechanism 100 is installed inside the sheet 400, specifically on the front side of the lower end of the sheet 400. The misuse prevention mechanism 100 includes an operating member 110 for receiving user input. The operating member 110 is attached to the sheet 400 and can be operated from outside the sheet 400.

[0039] More specifically, the operating member 110 can move relative to the sheet 400 between a first position shown in Figure 3 and a second position shown in Figure 4, so as to switch the misuse prevention mechanism 100 between a locked position and an unlocked position.

[0040] For example, in the first position shown in Figure 3, the operating member 110 is on the right side in the lateral direction shown in Figure 3, so the misuse prevention mechanism 100 is in the locked position. At this time, the rotation range of the turntable 200 (and seat 400) relative to the base 300 is limited, so the turntable 200 cannot rotate to the forward position. The principle of limiting the rotation range will be described in detail later. When the operating member 110 is in the first position, a mark on the operating member 110 is exposed on the outside of the seat 400 to show the user the current state of the misuse prevention mechanism 100. This mark is, for example, "<15M", indicating that the current state is suitable for children under 15 months old.

[0041] In the second position shown in Figure 4, the operating member 110 is on the left side in the lateral direction as shown in Figure 4, so the misuse prevention mechanism 100 is in the unlocked position. At this time, the rotation range of the turntable 200 (and seat 400) relative to the base 300 is not restricted, and the turntable 200 is allowed to rotate to the forward or backward position. When the operating member 110 is in the second position, another mark on the operating member 110 is exposed on the outside of the seat 400 to indicate the current state of the misuse prevention mechanism 100 to the user. This mark is, for example, ">15M", indicating that the current state is suitable for children 15 months and older.

[0042] Referring to Figures 5 to 7, the principle by which the misuse prevention mechanism 100 limits the rotation range of the turntable 200 relative to the base 300 will be explained.

[0043] As shown in Figure 5, the turntable 200 may be positioned on a base 300 and rotate around a substantial vertical axis. As shown in Figure 6, the turntable 200 includes a disc portion 210 located below the turntable 200. At least a portion of the misuse prevention mechanism 100 may be positioned on the turntable 200, and a projection 170 of the misuse prevention mechanism 100 may extend from the edge of the disc portion 210. As shown in Figure 7, the base 300 includes an opening 310 and a block portion 320. The opening 310 is located above the base 300 and has a circular shape. The block portion 320 is located on the edge of the opening 310. It should be understood that the disc portion 210 is rotatably engaged with the opening 310. When the projection 170 is in the locked position, the projection 170 and the block portion 320 interfere with each other to limit the range of rotation of the turntable 200 relative to the base 300. For example, the block portion 320 is positioned along the semicircle of the opening 310. When the projection 170 is in the locked position (i.e., when it extends from the turntable 200), the projection 170 can only move within the range of the latter half of the opening 310, thus restricting the turntable 200 from rotating to the forward position.

[0044] The relationships between the components of the misuse prevention mechanism 100 will be explained with reference to Figures 8 to 14.

[0045] The misuse prevention mechanism 100 includes an operating member 110, a toggle part 111, a slide part 112, a positioning member 120, a positioning member spring 129, a linkage 130, a pushing member 140, a pushing member pin 148, a pushing member spring 149, a driving member 150, a driving member pin 158, a driving member spring 159, a driven member 160, a driven member spring 169, and a projection 170.

[0046] The operating member 110 is positioned on the sheet 400 and moves laterally between a first position and a second position (a position perpendicular to the plane of paper shown in Figures 8 to 11) relative to the sheet 400 in response to user operation. According to the design of this disclosure, when the operating member 110 passes an intermediate position between the first and second positions and approaches the first position, the operating member 110 automatically moves to the first position, and when the operating member 110 passes an intermediate position and approaches the second position, the operating member 110 automatically moves to the second position, which will be explained in detail later.

[0047] The positioning member 120 is positioned on the sheet 400 and contacts the operating member 110. When the operating member 110 approaches the first or second position, the positioning member 120 automatically moves the operating member 110 to the first or second position, which will be described in detail later.

[0048] The positioning member spring 129 is positioned between the positioning member 120 and the seat 400, and biases the projection 121 of the positioning member 120 upward.

[0049] The linkage 130 extends longitudinally toward the inside of the seat 400 and swings about a transverse axis (i.e., about the crossbar 410). The operating member 110 abuts against one end of the linkage 130 (i.e., the end where the handle 131 is located, see Figures 9 and 11), and the lateral movement of the operating member 110 causes the linkage 130 to swing. It should be understood that the linkage 130 may extend in a different direction, for example, in an inclined direction.

[0050] The push member 140 is mounted vertically on the seat 400 and is restricted to move vertically. The other end of the linkage 130 to the handle 131 engages with the upper end of the push member 140, and the swing of the linkage 130 drives the push member 140 to move vertically. It should be understood that the push member 140 may be positioned and / or moved in other directions, for example, diagonally positioned and / or moved diagonally.

[0051] The push member pin 148 is inserted between the push member 140 and the linkage 130, enabling interaction between the push member 140 and the linkage 130, which will be described in detail later.

[0052] The compression member spring 149 is positioned between the compression member 140 and the sheet 400, and biases the compression member 140 upward.

[0053] The drive member 150 is provided within the turntable 200, positioned vertically below the push member 140, and is configured to move vertically. The lower end of the push member 140 abuts against the upper end of the drive member 150, and the vertical movement of the push member 140 causes the drive member 150 to move vertically.

[0054] The drive member spring 159 is positioned between the drive member 150 and the turntable 200, and biases the drive member 150 upward.

[0055] It can be understood that the drive member 150 and the push member 140 are positioned on the turntable 200 and the seat 400, respectively. When the turntable 200 and the seat 400 move away from each other, the drive member 150 and the push member 140 move away from each other accordingly. When the seat 400 engages with the turntable 200, the push member 140 extends from the bottom of the seat 400, enters the turntable 200 from the top, and pushes the drive member 150 downward.

[0056] The driven member 160 is positioned vertically on the turntable 200 and is restricted to moving in the vertical direction. The driven member 160 is coupled to the drive member 150, and the vertical movement of the drive member 150 drives the driven member 160, allowing it to move in the vertical direction.

[0057] The driven member spring 169 is positioned between the driven member 160 and the turntable 200 and biases the driven member 160 such that it tends to move closer to the outside of the turntable 200, that is, so that it tends to drive the projection 170 to protrude from the seat 400.

[0058] The projection 170 is positioned at least partially within the turntable 200 and is capable of moving between a locked position in which the projection extends from the turntable 200 and an unlocked position in which the projection retracts into the turntable 200. The projection 170 is positioned on the driven member 160, which is closer to the outside of the turntable 200, and the longitudinal movement of the driven member 160 drives the projection 170 to move between the locked and unlocked positions.

[0059] As shown in Figures 8 and 9, the misuse prevention mechanism 100 is in the unlocked position. At this time, the operating member 110 is in the first position, and the end of the linkage 130 that abuts the operating member 110 is lifted upward. The end of the linkage 130 opposite to the operating member 110 is pushed downward, driving the push member 140 to move downward. The push member 140 presses the drive member 150, and the drive member 150 drives the driven member 160 to move toward the inside of the turntable 200. Therefore, the projection 170 provided on the drive member 150 is housed inside the turntable 200.

[0060] As shown in Figures 10 and 11, when the user moves the operating member 110 to the second position, the operating member 110 no longer pushes upward the end of the linkage 130 that is in contact with the operating member 110, and the end of the linkage 130 opposite the operating member 110 no longer pushes downward the push member 140. Therefore, the push member 140 is reset upward by the action of the push member spring 149, driving the linkage 130 to rotate clockwise and resetting it. Since the push member 140 no longer pushes downward the drive member 150, the drive member 150 is reset upward by the action of the drive member spring 159, and the driven member 160 is no longer driven to move to the turntable 200. The driven member 160 is reset outward from the turntable 200 by the action of the driven member spring 169, and the projection 170 is driven to extend from the turntable 200, so the misuse prevention mechanism 100 is in the locked position.

[0061] The structures of the operating member 110, the positioning member 120, and the pressing member 140 will be explained with reference to Figures 12 to 15.

[0062] As shown in Figures 13 to 14, the operating member 110 includes a sliding portion 112, a toggle portion 111, two positioning recesses 113, an inclined surface portion 114, and a ridge 115.

[0063] The sliding portion 112 extends laterally and can slide relative to the outer surface of the seat 400 (i.e., relative to the child seat 1). The toggle portion 111 is connected to the outside of the sliding portion 112, which is exposed to the outside of the seat 400, and can drive the sliding portion 112 to move laterally relative to the seat 400. The outer surface of the sliding portion 112 may be marked, and the marks may be provided on both sides of the toggle portion 111 so that the user can easily understand the status of the misuse prevention mechanism 100 (see Figures 3 and 4). It should be understood that the sliding portion 112 may also be positioned to extend in other directions, such as vertically, diagonally, or curved. The sliding portion 112 may be attached to the outer surface of the seat 400, embedded in the seat 400, or suspended from the outside of the seat 400. The toggle portion 111 may be exposed to the outside of the seat 400 or hidden inside the seat 400.

[0064] The two positioning recesses 113 are located inside the slide portion 112, are located in the lateral center of the slide portion 112, and are symmetrical with respect to the longitudinal center of the slide portion 112. It should also be understood that the two positioning recesses 113 may be asymmetrically arranged on one side of the slide portion 112 or on both sides of the slide portion 112 in the lateral direction. Each of the positioning recesses 113 extends camber-shaped from a lateral intermediate position relative to the slide portion 112. A ridge 115 is formed between the two positioning recesses 113, and the ridge 115 protrudes downward relative to the positioning recesses 113. That is, the bottom surface of the operating member 110 forms a shape in which both sides of the lateral positioning recesses 113 and ridge 115 are higher than the central part. The ridge 115 protrudes toward the positioning member 120 and abuts against the protruding portion 121 of the positioning member 120, so that the operating member 110 automatically moves to the first or second position. The ridge 115 is machined with a curved surface at the position facing the projection 121 in order to prevent the ridge 115 from locking with the projection 121.

[0065] The inclined surface portion 114 is formed inside the positioning recess 113 in the longitudinal direction, and the upper surface of the inclined surface portion 114 extends obliquely such that one end is higher than the other end in the lateral direction. It should be understood that the inclined surface portion 114 may also be formed in different positions, for example, vertically above the positioning recess 113, vertically below the positioning recess 113, on one lateral side of the positioning recess 113, or between the positioning recess 113 and the slide portion 112, as long as it can contact the handle 131 of the linkage 130.

[0066] As shown in Figure 15, the positioning member 120 is located vertically below the operating member 110. In other embodiments, the positioning member 120 may also be positioned in other directions of the operating member 110, as long as the positioning recess 113 and ridge 115 can contact the projection 121. The positioning member 120 includes a positioning member body 122 and a projection 121. The positioning member body 122 is generally rectangular and is located within the sheet 400. The projection 121 is located within the positioning member body 122. vertical The operating member 110 is movable in a direction and has an arc-shaped projection 121 that fits into the positioning recess 113. The positioning member spring 129 biases the projection 121 upward. As the operating member 110 approaches the intermediate position, the projection 121 contacts the ridge 115, and the operating member 110 automatically moves to the first or second position. As the operating member 110 approaches the first or second position and passes the intermediate position, the projection 121 contacts the corresponding positioning recess 113, pushing the operating member 110 to the first or second position.

[0067] More specifically, the intermediate position mentioned above refers to the position where the ridge 115 of the operating member 110 corresponds precisely to the upper end of the arc-shaped projection 121.

[0068] As shown in Figure 13, the linkage 130 includes a handle 131, a pivot 132, and a fork 133.

[0069] The handle 131 is located at one longitudinal end of the linkage 130 and is held against the upper surface of the inclined surface portion 114. It should be understood that the handle 131 can also be formed at other locations on the linkage 130, for example, the vertical upper end, the vertical lower end, or one of the lateral sides of the linkage 130, as long as it is in contact with the sliding portion 112.

[0070] The pivot 132 is positioned at a distance from the handle 131, and the linkage 130 can swing around the pivot 132. More specifically, the pivot 132 is an arc-shaped groove that opens upward and extends laterally, and engages under the crossbar 410 installed on the seat 400, thereby allowing the linkage 130 to swing around the crossbar 410. The pivot 131 may be located in the longitudinal middle of the linkage 130 or near any end of the linkage 130, and it should be understood that the pivot 132 may have any other shape as long as it can swingably engage with the crossbar 410.

[0071] The fork 133 is positioned at the other longitudinal end of the linkage 130, extends longitudinally, and has two arms positioned symmetrically with respect to the longitudinal center of the push member 140. The push member 140 is rotatably connected between the two arms via a push member pin 148 (see Figures 9 and 11). It should be understood that the arms may extend in other directions, such as diagonally, and the two arms may be positioned asymmetrically.

[0072] When the operating member 110 moves from the first position to the second position, or from the second position to the first position, the handle 131 contacts the upper surface of the inclined surface portion 114 and slides, moving vertically, thereby driving the linkage 130 to swing.

[0073] Figures 16 to 19 more clearly illustrate the interaction between the operating member 110, the positioning member 120, the linkage 130, and the pressing member 140.

[0074] The specific structure of the driven member 160 will be explained with reference to Figures 20 to 24.

[0075] As shown in Figures 21 and 22, the driven member 160 is substantially box-shaped, having two longitudinally extending side walls 161 and an open top, with each side wall 161 having a slide groove 162 with an inclined edge, arranged symmetrically in the longitudinal direction. More specifically, each slide groove 162 is a roughly right-angled triangular groove, with the hypotenuse of the right-angled triangle located on the longitudinal side of the slide groove 162 and functioning as an inclined edge. It should be understood that the driven member 160 may have other shapes as long as the slide grooves 162 can be formed therein and the projections 170 can be connected thereto.

[0076] As shown in Figures 23 and 24, the drive member 150 is hollow and generally cylindrical. The drive member 150 includes drive member pins 158 that extend laterally outward from opposing sides of the drive member 150. Each of the drive member pins 158 is inserted into a corresponding slide groove 162 and held against a corresponding inclined edge.

[0077] Referring to Figures 23 and 24, the interaction between the driving member 150, the driven member 160, and the projection 170 can be understood more clearly.

[0078] Since this disclosure can be embodied in various forms without departing from the spirit and essence of this disclosure, the embodiments described above should not be limited to the details described herein, but should be interpreted as broadly as possible within the scope defined by the claims, and it should be understood that all modifications that fall within the scope of the claims or their equivalents should be covered by the claims of this disclosure. [Explanation of Symbols]

[0079] 1 Child car seat 100 Misuse prevention mechanism 110 Operating member 111 Toggle section 112 Slide section 113 Positioning recess 114 Slope section 115 Ridge 120 Positioning member 121 Protrusion 122 Positioning member body 129 Positioning member spring 130 Linkage 131 Handle 132 Pivot 133 Forks 140 Pressing member 148 Push pin 149 Compression member spring 150 Drive Member 158 Drive Member Pin 159 Drive Member Spring 160 Driven member 161 Side wall 162 Slide grooves 169 Driven member spring 170 Protrusion 200 Turntables 210 Disc section 300 base 310 Aperture 320 Block Section 400 sheets 410 Crossbar

Claims

1. A child car seat comprising a base, a turntable, a seat, and a misuse prevention mechanism, The turntable is located above the base and can rotate between a forward position and a backward position relative to the base about a substantially vertical axis. The seat is positioned above the turntable and can rotate with the turntable, the forward position is a position that allows the turntable to face the seat forward, and the rear position is a position that allows the turntable to face the seat rearward. The misuse prevention mechanism is provided between the base, the turntable, and the seat, and includes an operating member, the operating member being attached to the child seat and movable between a first position and a second position relative to the seat, thereby preventing or allowing relative rotation between the turntable and the base. The operating member automatically moves to the first position when it passes through an intermediate position between the first and second positions and approaches the first position, and automatically moves to the second position when it passes through an intermediate position and approaches the second position. A child car seat characterized by the following features.

2. The aforementioned misuse prevention mechanism further includes a positioning member, The positioning member is positioned on the child seat and contacts the operating member so as to automatically move the operating member to the first or second position when the operating member approaches the first or second position. The child car seat according to feature 1.

3. The operating member includes a ridge that protrudes from and contacts the positioning member, so that the operating member automatically moves to the first or second position. The child car seat according to feature 2.

4. The operating member includes a sliding portion and two positioning recesses, The sliding part can slide relative to the child seat. The two positioning recesses are located on the sliding portion. The positioning member includes a protruding portion, When the operating member is positioned near the intermediate position, the protrusion contacts the ridge, and the operating member automatically moves to the first or second position. After the operating member has passed the intermediate position and is close to the first or second position, the protrusion contacts the corresponding positioning recess and pushes the operating member to the first or second position. The child car seat according to claim 3.

5. The operating member further includes a toggle portion, The toggle portion is connected to the slide portion and is configured to drive the slide portion to slide relative to the child seat. The child car seat according to feature 4.

6. Each of the positioning recesses extends in an arc shape relative to the sliding portion, and the protruding portion has an arc-shaped contour corresponding to the positioning recess. The child car seat according to feature 4.

7. The positioning member includes a positioning member body, and the protruding portion can move vertically relative to the positioning member body. The child car seat according to feature 4.

8. The ridge is formed between the two positioning recesses, and the ridge is formed in an arc shape at a position facing the protrusion. The child car seat according to feature 4.

9. The aforementioned misuse prevention mechanism further includes a linkage that oscillates around a lateral axis, and the operating member abuts against one end of the linkage and drives the linkage to oscillate by the lateral movement of the operating member. The child car seat according to feature 4.

10. The operating member includes an inclined surface, and the upper surface of the inclined surface extends diagonally such that one end is higher laterally than the other end. The linkage includes a handle that holds the inclined surface portion against the upper surface, and a pivot provided at a distance from the handle, and the linkage is configured to oscillate about the pivot. When the operating member moves from the first position to the second position or from the second position to the first position, the handle slides against the upper surface of the inclined surface and moves vertically, driving the linkage to swing. The child car seat according to feature 9.

11. The pivot engages beneath the crossbar attached to the seat, thereby allowing the linkage to swing about the crossbar. The child car seat according to claim 10.

12. The aforementioned misuse prevention mechanism further includes a pressing member, The pressing member is provided on the sheet and its movement in the vertical direction is restricted. The other end of the linkage relative to the handle is coupled to the upper end of the pressing member, and the linkage is oscillated to drive the pressing member to move vertically. The child car seat according to feature 11.

13. The linkage further includes a fork located at the other end of the linkage relative to the handle, and has two arms provided on both sides laterally relative to the longitudinal center of the push member, the push member being rotatably connected between the two arms via a push member pin. The child car seat according to feature 12.

14. The aforementioned misuse prevention mechanism further includes a drive member, The drive member is provided on the turntable, positioned vertically below the push portion, and its movement in the vertical direction is restricted. The lower end of the pressing member abuts against the upper end of the driving member, and the vertical movement of the pressing member can cause the driving member to move vertically. The child car seat according to claim 13.

15. The aforementioned misuse prevention mechanism further includes a driven member, The driven member is provided within the turntable and its movement in the vertical direction is restricted. The driven member is coupled to the driving member and is driven to move in the vertical direction by the vertical movement of the driving member. The child car seat according to feature 14.

16. The driven member is provided with two side walls extending in the vertical direction and an open top, and each of the side walls is symmetrically provided with a sliding groove having an inclined edge in the vertical direction. The drive member is provided with drive member pins extending laterally outward from each of the opposing sides of the drive member, and the drive member pins are inserted into corresponding slide grooves and held against corresponding inclined edges. The child car seat according to claim 15, characterized by the features described above.

17. The aforementioned child seat further includes a protrusion, The projection is at least partially provided within the turntable and is movable between a locked position in which the projection extends from the turntable and an unlocked position in which the projection retracts into the turntable. The projection is provided such that the driven member is located near the outside of the turntable, and the vertical movement of the driven member drives the projection to move between the locked position and the unlocked position. The child car seat according to claim 16.

18. The aforementioned misuse prevention mechanism further includes a positioning member spring, a compression member spring, and a drive member spring. The positioning member spring is provided between the positioning member and the seat, and biases the positioning member upward. The aforementioned spring of the pressing member is provided between the pressing member and the seat, and biases the pressing member upward. The drive member spring is provided between the drive member and the turntable and biases the drive member upward. The child car seat according to feature 17.

19. The slide groove is a groove having a substantially right-angled triangular shape, and the hypotenuse of the right-angled triangle is located on the longitudinal side of the slide groove and functions as the inclined edge. The misuse prevention mechanism further includes a driven member spring, which is provided between the driven member and the turntable and biases the driven member to move toward the outside of the turntable, thereby causing the driven member to drive the projection to extend away from the turntable. The child car seat according to feature 18.

20. The aforementioned turntable includes a disc section, The disc portion is located below the turntable, The base includes an opening and a block portion, The opening is located above the base and is circular, and the disc portion is rotatably engaged with the opening. The block portion is located at the edge of the opening, When the projection is in the locked position, the projection interferes with the block portion, thereby limiting the rotation range of the turntable relative to the base. A child car seat according to any one of claims 17 to 19, characterized by the features described herein.

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