Child safety seat

Abstract

Provide child safety seats. The child safety seat includes a seat shell for receiving a child, an extension means, an extension lock mechanism operable to lock the extension means relative to the seat shell, and an anti-rebound lock portion. The anti-rebound portion can be mounted on the extension means or the seat shell. The child safety seat can be mounted to a vehicle seat in a rearward-facing position by the anti-rebound portion, which extends at an angle above the extension means and is adjacent to the seat back of the vehicle seat.

Description

[Technical Field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application is a divisional application of Japanese Patent Application No. 2020-002217, filed on January 9, 2020, which claims priority to U.S. Provisional Application No. 62 / 790,707, filed on January 10, 2019, and U.S. Provisional Application No. 62 / 843,692, filed on May 6, 2019.

[0002] Technical Field The present invention relates to a child safety seat. [Background technology]

[0003] Child safety seats are typically used in automobiles to properly restrain children in the event of a crash. It is widely known that child safety seats provide better protection when placed in a rear-facing position, as the crash forces can be distributed over a larger portion of the body (i.e., the back supporting the head). Therefore, it is usually recommended to use a child safety seat in a rear-facing position for as long as possible, until the child reaches the maximum weight or height allowed by the seat.

[0004] To accommodate children of different ages, some child safety seats have adjustable extension panels to increase or decrease leg room in the rear-facing position. However, the areas where child safety seats are installed in vehicles can vary greatly in shape and size, and the configuration of the extension panels may not always provide adequate support to prevent undesired rotation of the child safety seat into the vehicle seat.

[0005] Therefore, there is a need for an improved child safety seat that can address at least the aforementioned problems and that is more flexible in use. Summary of the Invention

[0006] The present application describes a child safety seat having an expansion means and an anti-rebound section that can be adjusted as needed, which can provide more flexibility and is safer to use.

[0007] According to an embodiment, a child safety seat includes a seat shell for receiving a child, an extension means, an extension lock mechanism, and an anti-rebound portion. The seat shell for receiving a child has a backrest, a front end opposite the backrest, and a seat portion extending between the backrest and the front end. The extension means is disposed adjacent to the front end of the seat shell and has a front end, and the extension means is slidably connected to the seat shell, such that the extension means is slidable relative to the seat shell to increase or decrease the distance between the front end of the extension means and the front end of the seat shell. The extension lock mechanism is operable to lock the extension means relative to the seat shell. The anti-rebound portion is connected to the seat shell, and the child safety seat can be attached to a vehicle seat in a rearward-facing position with the anti-rebound portion extending at an angle above the extension means and adjacent to the seat backrest of the vehicle seat. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view showing an embodiment of a child safety seat; [Figure 2] 10A and 10B show schematic cross-sectional views of an extension locking mechanism operable to lock an extension means relative to the seat shell of a child safety seat; [Figure 3]3 is a partial cross-sectional view schematically illustrating the extension locking mechanism of FIG. 2 in an unlocked state. [Figure 4] 2 is a side view showing the child safety seat of FIG. 1 to which an anti-rebound part is attached. FIG. [Figure 5] 2 is a side view showing the child safety seat of FIG. 1 in another configuration with an anti-rebound portion attached; FIG. [Figure 6] FIG. 10 is a perspective view showing the anti-rebound part attached to the expansion means. [Figure 7] 7 is a cross-sectional view showing further structural details of the anti-rebound part of FIG. 6 attached to an expansion means. [Figure 8] FIG. 10 is a side view schematically showing another embodiment of an anti-rebound portion provided in a child safety seat. [Figure 9] 9 is a side view of the embodiment of FIG. 8 with the anti-rebound portion in an intermediate position. [Figure 10] 9 is a side view of the embodiment of FIG. 8 with the anti-rebound portion in a deployed position. [Figure 11] 9 is a perspective view showing an assembly of the anti-rebound part with the expansion means in the embodiment of FIG. 8. FIG. [Figure 12] FIG. 10 is a side view schematically showing another embodiment of an anti-rebound portion provided in a child safety seat. [Figure 13] 13 is a side view of the embodiment of FIG. 12 with the anti-rebound portion in an intermediate position. FIG. [Figure 14] 13 is a side view of the embodiment of FIG. 12 with the anti-rebound portion in a deployed position. FIG. [Figure 15] 10 is a perspective view showing another embodiment of two anti-rebound parts pivotally connected to the expansion means of the child safety seat; FIG. [Figure 16] 10 is a side view showing another modified embodiment of an anti-rebound part pivotally connected to an expansion means of a child safety seat; FIG. [Figure 17]10 is a perspective view showing another embodiment of a T-shaped anti-rebound section pivotally connected to an extension means of a child safety seat; FIG. [Figure 18] FIG. 10 is a side view schematically showing another embodiment of an anti-rebound portion provided in a child safety seat. [Figure 19] 19 is an exploded view showing further structural details of the pivotal connection connecting the anti-rebound portion to the seat shell in the embodiment shown in FIG. 18. FIG. [Figure 20] 10 is a perspective view showing another embodiment of an anti-rebound portion provided in a child safety seat. FIG. [Figure 21] 10 is a perspective view showing another embodiment of a removable anti-rebound portion provided in a child safety seat. FIG. [Figure 22] FIG. 10 is a side view schematically showing another embodiment in which the anti-rebound portion provided on the child safety seat can have an adjustable length. [Figure 23] FIG. 10 is a side view schematically showing another embodiment in which the anti-rebound portion provided on the child safety seat can have an adjustable length. DETAILED DESCRIPTION OF THE INVENTION

[0009] FIG. 1 is a perspective view of one embodiment of a child safety seat 100 suitable for seating a child in a vehicle. The child safety seat 100 may include a base 102 and a child carrier 104 that can be removably attached to the base 102. The base 102 may provide stable support for the child carrier 104 and may also allow the child carrier 104 to be reclined. The child carrier 104 has a seat shell 106 for receiving a child, the seat shell 106 having a seat portion 108 and a backrest 110. The seat shell 106, including the seat portion 108 and the backrest 110, may be formed by plastic molding. The seat shell 106 may include two support rails 112 protruding from an underside of the seat shell 106 that can rest in contact with an upper surface of the base 102. Once placed on the base 102, a fastener system is operable to lock the child carrier 104 in position. The child carrier 104 and base 102 assembly can then be mounted in an appropriate configuration on the vehicle seat, particularly in a rear-facing position (ie, facing a seatback of the vehicle seat).

[0010] The seat portion 108 of the seat shell 106 may have an upper surface 108A on which a child can sit, extending from a backrest 110 toward the front of the seat shell 106 and terminating at a front end 106A of the seat shell 106 opposite or opposite the backrest 110. The backrest 110 may be assembled with an adjustable headrest 114 to accommodate the height of a child. Additionally, the seat shell 106 may have two lateral guard portions 116 disposed adjacent to the left and right boundaries of the seat shell 106 and protruding upward from the upper surface 108A. The two lateral guard portions 116 may limit lateral movement of a child accommodated in the seat shell 106.

[0011] The extension means 120 may be disposed adjacent to the front end 106A of the seat shell 106 and may be slidably connected to the seat shell 106 for displacement along a longitudinal axis extending from the rear to the front of the seat shell 106. The extension means 120 may have a lateral portion 120A extending across the width of the seat portion 108, two curved portions 120B connected to the left and right sides of the lateral portion 120A, respectively, and a front end 120C. The curved portion 120B may protrude upward from the lateral portion 120A, and the front end 120C may be supported by the lateral portion 120A. In one embodiment, the extension means 120 (including the lateral portion 120A, the two curved portions 120B, and the front end 120C) may be formed as an integral body. The extension means 120 formed thereby may have a generally U-shape with the enlarged lateral portion 120A. The extension means 120 can be disposed through a cavity in the seat shell 106 extending generally from the front end 106A of the seat shell 106 toward the rear of the seat shell 106, with the lateral portion 120A below the upper surface 108A and the two bent portions 120B adjacent to the underside of the lateral guard portions 116, respectively. The extension means 120 can slide relative to the seat shell 106 to increase or decrease the distance between the front end 120C of the extension means 120 and the front end 106A of the seat shell 106. For example, the extension means 120 can slide forward relative to the seat shell 106 to a first position in which the front end 120C of the extension means 120 is extended forward away from the front end 106A of the seat shell 106, and can retract within the seat shell 106 to a second position in which the front end 120C is adjacent to the front end 106A of the seat shell 106. Additionally, the expansion means 120 may occupy a number of intermediate positions between the first and second positions described above.When the child safety seat 100 is installed in the vehicle seat in a rear-facing position, the front end 120C of the extension means 120 may be positioned adjacent to the seat back of the vehicle seat, and the extension member 120 may be adjusted to provide more or less space in front of the child safety seat 100 for positioning the child's legs. Thus, the extension means 120 allows for adjustment of the leg space to accommodate children of different ages.

[0012] 2 and 3, in conjunction with FIG. 1, are partial cross-sectional views schematically illustrating an expansion lock mechanism 122 operable to lock the expansion means 120 relative to the seat shell 106. The expansion lock mechanism 122 may include two locking portions 124 connected to the expansion means 120 at two positions laterally spaced from each other. The expansion means 120 may have an attachment portion 120D connected to the lateral portion 120A and disposed between two side walls 126 of the seat shell 106. The two locking portions 124 may be pivotally connected to the expansion member 120 about pivot axes R1 and R2 and may be disposed adjacent to the left and right ends of the attachment portion 120D. Each of the locking portions 124 may be secured by a pin 124A disposed eccentrically from the pivot axis R1 or R2. The locking portions 124 are rotatable relative to the expansion means 120 to engage with two side walls 126 of the seat shell 106, respectively, to lock the expansion means 120 in position relative to the seat shell 106. More specifically, each side wall 126 may have a plurality of openings 128, and each associated locking portion 124 may be engageable with a first one of the openings 128 to lock the expansion means 120 in a first position and with a second one of the openings 128 to lock the expansion means 120 in a second position.

[0013] The expansion lock mechanism 122 may further include a release portion 130 assembled with the expansion means 120 and extending longitudinally within the gap 132 between the two locking portions 124. The release portion 130 may be connected to the expansion means 120 for sliding displacement along a longitudinal axis extending from the front to the rear of the seat shell 106 and disposed at a central position of the expansion means 120. Two elongated slots 130A may be formed through the release portion 130 at two laterally spaced apart positions. When the release portion 130 is assembled with the expansion means, the two pins 124A of the two locking portions 124 are received in the two slots 130A, respectively, and the length of the slots 130A is longer than the length of the pins 124A, thereby limiting relative displacement between the release portion 130 and the locking portions 124. The release portion 130 may be disposed near the front end 120C and may be hidden behind a cap 134 formed together with the front end 120C. The release portion 130 is movable between a locked position, shown in Figure 2, and an unlocked position, shown in Figure 3. In the locked position, shown in Figure 2, the locking portion 124 can engage a side wall 126 of the seat shell 106 to lock the expansion means 120 in place. A torsion spring 136 can be used to bias the locking portion 124 into engagement with the side wall 126.

[0014] To unlock the locking portion 124, the release portion 130 is pulled forward, thus moving the release portion 130 away from the gap 132 relative to the expansion means 120 to allow unlocked rotation of the locking portion 124. As the release portion 130 continues to move forward, the edges of the slot 130A can contact and engage the pins 124A, respectively, which urges the locking portion 124 to rotate out of engagement with the side wall 126 of the seat shell 106 to unlock the expansion means 120. In one embodiment, the release portion 130 may be biased toward the locked position by a spring 138, and a caregiver can pull the release portion 130 forward against the biasing force of the spring 138 to switch the release portion 130 from the locked position to the unlocked position for displacement of the expansion means 120.

[0015] 1, Figures 4 and 5 are two side views showing the child safety seat 100 having the anti-rebound portion 140, Figure 6 is a perspective view showing the anti-rebound portion 140 attached to the extension means 120, and Figure 7 is a cross-sectional view showing further structural details of the anti-rebound portion 140 attached to the extension means 120. With reference to Figures 1 and 4-7, the child safety seat 100 can further include an anti-rebound portion 140 adapted to prevent rebound of the child safety seat 100 during a vehicle collision. More specifically, the child safety seat 100 can be attached to a vehicle seat in a rear-facing position with the anti-rebound portion 140 restrictedly positioned on the extension means 120 and adjacent to the seat back of the vehicle seat, with the anti-rebound portion 140 extending at an angle above the extension means 120. In the event of a vehicle collision, the anti-rebound portion 140 can press against the back of the vehicle seat to dissipate the rebound impact and prevent the child safety seat 100 from rotating into the vehicle seat.

[0016] According to an example structure, the anti-rebound part 140 has a lateral part 140A and two lateral parts 140B connected to the lateral part 140A on its left and right sides, respectively. An exemplary shape of the anti-rebound part 140 can have a rigid bar having a generally U-shape. The anti-rebound part 140 having the lateral part 140A and the two lateral parts 140B can be integrally formed as a single part.

[0017] According to one embodiment, the anti-rebound portion 140 can be attachable to and detachable from the expansion means 120. For example, the expansion means 120 can have two sockets 142, and the two side portions 140B of the anti-rebound portion 140 can be connectable to the two sockets 142, respectively. According to a structural example, the two side portions 140B of the anti-rebound portion 140 can have two tube portions 144 (better shown in FIG. 7 ) that can be inserted into and detached from the two sockets 142, respectively. Thereby, the anti-rebound portion 140 can be carried by the expansion means 120 and can move together with the expansion means 120 during sliding adjustment of the expansion means 120 relative to the seat shell 106.

[0018] According to a structural example, two sockets 142 can be provided on the two bending portions 120B of the expansion member 120, respectively, so that the two side portions 140B of the anti-rebound portion 140 can be restrictively positioned on the two bending portions 120B of the expansion means 120. The two sockets 142 can have the same structure. As better shown in FIG. 7 , each socket 142 can exemplarily have an opening 146, a shutter 148, and a spring 150, and the spring 150 can have two ends connected to the inner surfaces of the expansion means 120 inside the shutter 148 and the opening 146, respectively. The shutters 148 can be biased by the action of the springs 150 to close the openings 146 of the sockets 142 when the anti-rebound portion 140 is removed from the expansion means 120, and each tube portion 144 of the anti-rebound portion 140 can be inserted into the openings 146 of one socket 142 by pressing against the shutters 148. The shutters 148 described herein can help prevent contaminants from entering the openings 146 of the sockets 142. However, it will be understood that some alternative embodiments may omit the shutters 148 and springs 150.

[0019] 4 to 6, the anti-rebound portion 140 may have a bent portion that forms a recess 152. The recess 152 may exemplarily be located adjacent to a joint region between the lateral portion 140A and the two side portions 140B of the anti-rebound portion 140. In a first configuration, the anti-rebound portion 140 can be attached to the extension means 120 with the recess 152 facing rearward relative to the seat shell 106 (i.e., facing the backrest 110). In a second configuration, the anti-rebound portion 140 can be attached to the extension means 120 with the recess 152 facing forward relative to the seat shell 106 (i.e., facing the front of the seat shell 106). In FIG. 4, the anti-rebound portion 140 is shown in the first configuration. When the child safety seat 100 is installed in a rear-facing position with the seat shell 106 upright, the anti-rebound portion 140 can be positioned in the first configuration, thereby allowing the anti-rebound portion 140 to follow the inclination of the vehicle seat back. 5, the anti-rebound portion 140 is shown in a second configuration. When the seat shell 106 is reclined, the anti-rebound portion 140 may be positioned in the second configuration to facilitate contact with the vehicle seat back.

[0020] 1 and 4-7, the child safety seat 100 may further include an anti-rebound locking mechanism 154 operable to lock the anti-rebound portion 140 on the extension means 120. The anti-rebound locking mechanism 154 may include a latch 156, a spring 158, and a release actuator 160. The same anti-rebound locking mechanism 154 may be symmetrically provided on the left and right sides of the anti-rebound portion 140, and FIG. 7 shows the anti-rebound locking mechanism 154 provided on one of the left and right sides. The latch 156 may be assembled to one of the tube portions 144 of the anti-rebound portion 140. For example, the latch 156 may be a lock pin slidably connected to the tube portion 144 of the anti-rebound portion 140. The latch 156 is movable to protrude laterally outward from the tube portion 144 to engage with the extension means 120, and further movable to retract inward to disengage from the extension means 120. The latch 156 is engageable with the expansion means 120 to lock the anti-rebound portion 140 and disengageable from the expansion means 120 to unlock and remove the anti-rebound portion 140 .

[0021] The spring 158 can bias the latch 156 to protrude outside the tube portion 144 for engagement with the expansion means 120. According to an example construction, the spring 158 can be disposed inside the tube portion 144 and can connect with the latch 156 and the inner sidewall of the tube portion 144, respectively.

[0022] The release actuator 160 can be assembled with the expansion means 120 and positioned adjacent to the socket 142 into which the tube portion 144 is inserted. For example, the release actuator 160 can be a release button slidably connected to the expansion means 120. The release actuator 160 is operable to contact and squeeze the latch 156 to disengage the anti-rebound portion 140 from the expansion means 120 to remove it.

[0023] When the tube portion 144 of the anti-rebound portion 140 is inserted into the socket 142, each latch 156 can engage with the expansion means 120 to lock the anti-rebound portion 140 onto the expansion means 120. To remove the anti-rebound portion 140 from the expansion means 120, the release actuator 160 can be depressed to disengage the latches 156 from the expansion means 120, thereby unlocking the anti-rebound portion 140 relative to the expansion means 120.

[0024] The anti-rebound locking mechanism 154 described herein can securely lock the anti-rebound portion 140 onto the expansion means 120 and can be operated by a caregiver to release the anti-rebound portion 140. However, it will be understood that some alternative embodiments may omit the anti-rebound locking mechanism 154. For example, the anti-rebound portion 140 can be held in position on the expansion means 120 without the anti-rebound locking mechanism 154 by simply inserting the tube portion 144 of the anti-rebound portion 140 into a socket. In other embodiments, a detent may be provided to hold the anti-rebound portion 140 in place.

[0025] 8 to 11 are various schematic views showing another embodiment of the anti-rebound portion 240 provided in the child safety seat 100. Referring to FIGS. 8 to 11, the anti-rebound portion 240 is carried by the expansion means 120 and can move relative to the seat shell 106 together with the expansion means 120 during adjustment of the expansion means 120. The expansion means 120 can be locked to the seat shell 106 using an expansion lock mechanism similar to the expansion lock mechanism 122 described above. According to a structural example, the anti-rebound portion 240 has a lateral portion 240A and two side portions 240B, which are connected to the lateral portion 240A on its left and right sides, respectively. The anti-rebound portion 240 thus formed has a substantially U-shape.

[0026] The anti-rebound portion 240 can be connected to the expansion means 120 through two links 242 having the same structure. For example, the two links 242 can symmetrically connect the two side portions 240B of the anti-rebound portion 240 to the two bending portions 120B of the expansion means 120, respectively. According to an example structure, the links 242 provided on the left and right sides respectively have two bars 244 and 246, which are pivotally connected to the bending portions 120B of the expansion means 120 and the side portions 240B of the anti-rebound portion 240, respectively.

[0027] In the above-described configuration, the anti-rebound portion 240 is movable forward to deploy and rearward to retract relative to the expansion means 120. In particular, the anti-rebound portion 240 is retracted in a first angular position relative to the expansion means 120 and deployed in a second angular position relative to the expansion means 120 that is angled from the first angular position, with the anti-rebound portion 240 extending forward and upward in the second angular position. FIG. 8 shows the anti-rebound portion 240 in the first angular position corresponding to the retracted position, FIG. 10 shows the anti-rebound portion 240 in the second angular position corresponding to the deployed position for use, and FIG. 9 shows the anti-rebound portion 240 in an intermediate position between the first and second angular positions. According to a structural example, the anti-rebound portion 240 can have a distal end 240C supported by the lateral portion 240A of the anti-rebound portion 240, the distal end 240C being adjacent to the front end 120C of the extension means 120 in the first angular position and displaced forward away from the front end 120C of the extension member 120 in the second angular position. When the child safety seat 100 is mounted on the vehicle seat in a rear-facing position, the anti-rebound portion 240 can be deployed to the second angular position so as to extend above the extension means 120 and be positioned adjacent to the seat back of the vehicle seat. When the anti-rebound portion 240 is not used, the anti-rebound portion 240 can be stored in the first angular position with two lateral portions 240B extending respectively along the two bent portions 120B of the extension means 120.

[0028] 8 to 11, the child safety seat 100 may further include an anti-rebound locking mechanism 250 operable to lock the anti-rebound portion 240 relative to the extension means 120. According to an example structure, the anti-rebound locking mechanism 250 may include a locking structure 252 provided on one link 242 and a latch 254 connected to the extension means 120 and movable to engage and disengage with the locking structure 252. More specifically, the locking structure 252 may be provided on either the left or right bar 244, 246 of the link 242, and the latch 254 may be connected to the bent portion 120B of the extension means 120 on the same side. According to an example structure, the latch 254 may be pivotally connected to the extension means 120, and the locking structure 252 may have a plurality of teeth provided on a rounded end of the bar 244 pivotally connected to the extension means 120. The latch 254 is movable relative to the expansion means 120 to engage the locking structure 252 to lock the anti-rebound portion 240 relative to the expansion means 120, and to disengage from the locking structure 252 to unlock the anti-rebound portion 240 relative to the expansion means 120. The same anti-rebound locking mechanism 250 can be provided on each of the left and right sides of the expansion means 120.

[0029] In the above-described structure, the anti-rebound locking mechanism 250 can lock the anti-rebound portion 240 to the expansion means 120 in the stowed position and in multiple deployed positions. Therefore, the caregiver can flexibly adjust the anti-rebound portion 240 to properly contact the vehicle seat back for different reclining positions of the seat shell 106.

[0030] 12 to 14 are side views schematically illustrating another embodiment of an anti-rebound portion provided in a child safety seat. Referring to FIGS. 12 to 14, the anti-rebound portion 340 is supported by the extension means 120 and can move together with the extension means 120 relative to the seat shell 106 during adjustment of the extension means 120. The extension means 120 can be locked to the seat shell 106 by an extension lock mechanism similar to the extension lock mechanism 122 described above. The anti-rebound portion 340 can have a lateral portion 340A and two side portions 340B connected to the lateral portion 340A on the left and right sides, respectively. Therefore, the formed anti-rebound portion 340 has, for example, a substantially U-shape. FIGS. 12 to 14 are side views showing only one side portion 340B, and the other side portion 340B can be symmetrically identical to the side portion 340B shown in FIGS. 12 to 14.

[0031] The anti-rebound portion 340 can be connected to two guide tracks 342, which are provided on the left and right sides of the expansion means 120, for example, at the bent portion 120B of the expansion means 120. The two guide tracks have the same structure and are fixed symmetrically to the left and right sides of the expansion means 120, and FIGS. 12-14 only show the guide track 342 provided on one of the left and right sides. According to an example structure, each guide track 342 can have a track portion 344 having a linear shape and two track portions 346 and 348 having an arch shape connected to the track portion 344, and the arched track portions 346 and 348 are concentric. On each of the left and right sides, the lateral portions 340B of the anti-rebound portion 340 can be fixedly connected to two pins 350 and 352 that are guided to slide along the guide tracks 342.

[0032] In the above-described configuration, the anti-rebound portion 340 is movable in a forward direction to be deployed relative to the expansion means 120 and in a rearward direction to be retracted. In particular, the anti-rebound portion 340 is retracted relative to the expansion means 120 in a first angular position and deployed relative to the expansion means 120 in a second angular position that is angled from the first angular position, with the anti-rebound portion 340 extending forward and upward in the second angular position. FIG. 12 shows the anti-rebound portion 340 in the first angular position corresponding to the retracted position, FIG. 14 shows the anti-rebound portion 340 in the second angular position corresponding to the deployed position for use, and FIG. 13 shows the anti-rebound portion 340 in an intermediate position between the first and second angular positions. On each of the left and right sides, sliding movement of pins 350 and 352 along track portion 344 can correspond to sliding displacement of anti-rebound portion 340 between the first angular position of Figure 12 and the intermediate position of Figure 13, and sliding movement of each of pins 350 and 352 along track portions 346 and 348 can correspond to rotation of anti-rebound portion 340 between the intermediate position of Figure 13 and the second angular position of Figure 14. Thus, the sliding connection of pins 350 and 352 with guide track 342 allows anti-rebound portion 340 to slide back and forth and rotate for adjustment.

[0033] According to a structural example, the anti-rebound portion 340 can have a distal end 340C supported by the lateral portion 340A of the anti-rebound portion 340, the distal end 340C being disposed adjacent to the front end 120C of the extension means 120 in the first angular position and displaced forward away from the front end 120C of the extension means 120 in the second angular position. When the child safety seat 100 is mounted on the vehicle seat in a rear-facing position, the anti-rebound portion 340 can be deployed to the second angular position so as to extend above the extension means 120 and be positioned adjacent to the seat back of the vehicle seat. When the anti-rebound portion 340 is not used, the anti-rebound portion 340 can be stored in the first angular position with its two lateral portions 340B extending along the two bent portions 120B of the extension means 120, respectively.

[0034] 12-14, the anti-rebound portion 340 has a telescopic structure. For example, each side portion 340B of the anti-rebound portion 340 can have two side portions 354 and 356 telescopically assembled with each other, and the lateral portion 340A can be telescopically assembled with the side segment 356 of each side portion 340B, and two pins 350 and 352 on the lateral portion 340B can be fixedly connected to the side segment 354. The telescopic structure of the anti-rebound portion 340 can have any suitable locking device for locking its extended length. For example, the lateral portion 340A and one or more of the side segments 354 and 356 can have one or more latches adapted to lock the telescopic structure at a desired extended length. In the telescoping configuration, the side segments 354, 356 and the lateral portion 340A can be folded into one another as shown in Figure 12 to shorten the anti-rebound portion 340 for compact storage in a first angular position. When the anti-rebound portion 340 is deployed for use to the second angular position of Figure 14, the side segments 354, 356 and the lateral portion 340A can be extended into one another to increase the length of the anti-rebound portion 340.

[0035] The anti-rebound portion 340 can be locked in place using a variety of anti-rebound locking mechanisms. For example, a suitable anti-rebound locking mechanism may include one or more latches on the anti-rebound portion 340 that can engage different regions of the expansion means 120 to lock the anti-rebound portion 340 in the stowed position of FIG. 12 , the deployed position of FIG. 14 , and / or any other desired position. According to another example design, detents may be provided to hold the anti-rebound portion 340 in any desired position. For example, the detents may be provided by protrusions at positions along the guide track 342 that correspond to the desired position of the anti-rebound portion 340, and may engage with the pins 350 and 352 to hold the anti-rebound portion 340 in the desired position.

[0036] 15 is a perspective view showing another embodiment in which the child safety seat 100 is provided with two anti-rebound portions 440. The two anti-rebound portions 440 can be two paddles pivotally connected to two bent portions 120B of the expansion means 120, respectively, and the two paddles can rotate independently of each other relative to the expansion means 120. More specifically, each anti-rebound portion 440 can rotate between a first angular position corresponding to a stowed position in which the distal end 440A of the anti-rebound portion 440 is disposed adjacent to the front end 120C of the expansion means 120, and a second angular position inclined relative to the first angular position corresponding to a deployed position in which the distal end 440A of the anti-rebound portion 440 is displaced away from the front end 120C of the expansion means 120. In the second angular position, the anti-rebound portion 440 can extend forward and upward from the expansion means 120. The extension means 120 can be locked to the seat shell 106 by an extension lock mechanism similar to the extension lock mechanism 122 described above. When the child safety seat 100 is installed on the vehicle seat in a rear-facing position, each anti-rebound portion 440 can be deployed to a second angular position so as to extend above the extension means 120 and be positioned adjacent to the seat back of the vehicle seat.

[0037] FIG. 16 is a side view schematically showing another embodiment of an anti-rebound portion 440′ provided on the child safety seat 100. Instead of the two anti-rebound portions 440 shown in FIG. 15, the child safety seat 100 shown in FIG. 16 may have a single anti-rebound portion 440′ pivotally connected to the two bending portions 120B of the extension means 120. The extension means 120 can be locked to the seat shell 106 by an expansion lock mechanism similar to the expansion lock mechanism 122 described above. As in some of the previous embodiments, the anti-rebound portion 440′ may have a lateral portion and two side portions connected to the lateral portion on the left and right sides thereof, respectively, and the two side portions of the anti-rebound portion 440′ are connected to the two bending portions 120B of the extension means 120, respectively. The anti-rebound portion 440′ thus formed has a substantially U-shape. In operation, the anti-rebound portion 440′ is rotatable between a first angular position corresponding to a stowed position in which the distal end of the anti-rebound portion 440′ is disposed adjacent the front end of the expansion means 120, and a second angular position angled relative to the first angular position corresponding to a deployed position in which the distal end 440A of the anti-rebound portion 440 is displaced away from the front end of the expansion means 120. In the second angular position, the anti-rebound portion 440′ can extend forward and upward from the expansion means 120.

[0038] FIG. 17 is a perspective view showing another embodiment of the anti-rebound portion 540 provided on the child safety seat 100. Referring to FIG. 17, the anti-rebound portion 540 may be a T-bar and may be connected to a central position of the lateral portion 120A of the extension means 120. For example, the anti-rebound portion 540 may be pivotally connected to the lateral portion 120A of the extension means 120. According to another structural example, the anti-rebound portion 540 may be detachably connected to the lateral portion 120A of the extension means 120. Furthermore, the extension means 120 can be locked to the seat shell 106 by an expansion lock mechanism similar to the expansion lock mechanism 122 described above. The child safety seat 100 can be attached to the vehicle seat in a rearward-facing position by using the anti-rebound portion 540, which is extended and deployed above the extension means 120 and placed adjacent to the seat back of the vehicle seat. Since the anti-rebound portion 540 is provided in the form of a T-bar, it is easy to access the seat shell 106.

[0039] FIG. 18 is a side view schematically illustrating another embodiment of an anti-rebound portion 640 provided on the child safety seat 100. Referring to FIG. 18, the anti-rebound portion 640 is mounted on the seat shell 106 rather than on the extension means 120, thereby allowing the extension means 120 and the anti-rebound portion 640 to be adjusted independently of each other. The extension means 120 can be locked to the seat shell 106 by an extension lock mechanism similar to the extension lock mechanism 122 described above. According to one embodiment, the anti-rebound portion 640 can be pivotally connected to the seat shell 106, for example, adjacent to the front portion of the lateral guard portion 116. As described above, the anti-rebound portion 640 can have a lateral portion and two lateral portions connected to the lateral portion on its left and right sides, respectively. The two lateral portions of the anti-rebound portion 640 are pivotally connected to the seat shell 106 via two pivot connections 642, respectively. The anti-rebound portion 640 thus formed has a generally U-shape. When the child safety seat 100 is installed on the vehicle seat in a rear-facing position, the anti-rebound portion 640 can be positioned to extend above the extension means 120 at a desired angle and be placed adjacent to the seat back of the vehicle seat.

[0040] 18, FIG. 19 is an exploded view showing further structural details of the pivot connection 642 that connects the anti-rebound portion to the seat shell 106 about the pivot axis P. With reference to FIGS. 18 and 19, the pivot connection 642 may have a coupling portion 644 fixedly connected to the seat shell 106, a coupling portion 646 fixedly connected to the anti-rebound portion 640, and a shaft 648 that pivotally connects the two coupling portions 644 and 646. The coupling portions 644 and 646 may be coupling shells that define an internal cavity for disposing an anti-rebound locking mechanism 650 that is operable to lock the anti-rebound portion 640 relative to the seat shell 106.

[0041] 18 and 19 , the anti-rebound locking mechanism 650 may include a latch 652, a spring 654, and a release actuator 656. The latch 652 may be assembled for sliding movement along a shaft 648, such that the latch 652 is movable along a pivot axis P between a locked position in which the latch 652 engages the two coupling portions 644 and 646 to prevent rotation of the anti-rebound portion 640 relative to the seat shell 106, and an unlocked position in which the latch 652 disengages from one of the coupling portions 644 and 646 to allow rotation of the anti-rebound portion 640 relative to the seat shell 106. For example, the latch 652 may include a plurality of teeth 652A in the circumferential direction, and each of the coupling portions 644 and 646 may have a plurality of corresponding grooves. The teeth 652A of the latch 652 can respectively engage with the grooves of the two coupling portions 644, 646 in the locked position and can disengage from the groove of the coupling portion 644 in the unlocked position.

[0042] It will be appreciated that instead of having the latch tooth 652A disengaged from the groove of the coupling portion 644 in the unlocked position, another embodiment can have the latch tooth 652A disengaged from the groove of the coupling portion 646 in the unlocked position.

[0043] 19, the spring 654 can have two ends that are respectively connected to the latch 652 and the coupling portion 646. The spring 654 can bias the latch 652 toward the locked position due to engagement with the two coupling portions 644 and 646.

[0044] A release actuator 656 is provided on one of the two coupling portions 644 and 646 and is operable to move the latch 652 to the unlocked position. For example, the release actuator 656 can be assembled in an opening 658 in the coupling portion 644 for sliding movement along the pivot axis P. When the release actuator 656 is depressing, the release actuator 656 can contact the latch 652 and move the latch 652 from the locked position to the unlocked position against the biasing force of the spring 654 to unlock the anti-rebound portion 640.

[0045] FIG. 20 is a perspective view showing another embodiment of an anti-rebound portion 740 that replaces the anti-rebound portion described above. Referring to FIG. 20 , the anti-rebound portion 740 can be pivotally connected to the seat shell 106, for example, adjacent to the front portion of the lateral guard portion 116. As described above, the anti-rebound portion 740 can have a lateral portion 740A, two lateral portions 740B connected to the lateral portion 740A on its left and right sides, respectively, and the two lateral portions 740B of the anti-rebound portion 740 pivotally connected to the seat shell 106, respectively. The anti-rebound portion 740 thus formed has a generally U-shape. Furthermore, the extension means 120 can be locked to the seat shell 106 by an expansion lock mechanism similar to the expansion lock mechanism 122 described above. When the child safety seat 100 is installed on the vehicle seat in a rear-facing position, the anti-rebound portion 740 can be positioned to extend above the extension means 120 at a desired angle and be placed adjacent to the seat back of the vehicle seat.

[0046] Referring to FIG. 20 , the seat shell 106 may have two channels 742 provided in the front portions of the two lateral guard portions 116 on the extension means 120, and the two lateral portions 740B of the anti-rebound portion 740 may be positioned through the two channels 742, respectively. Each lateral portion 740B may move up and down along the corresponding channel 742 to adjust the anti-rebound portion 740 between a plurality of angular positions relative to the seat shell 106. Furthermore, the seat shell 106 may have a plurality of spaced-apart detents 744 positioned along each channel 742. The detents 744 may be protrusions that locally narrow the channel 742. Each of the detents 744 is configured to retain the anti-rebound portion 740 and prevent it from moving from one of a plurality of angular positions to an adjacent other angular position.

[0047] FIG. 21 is a perspective view showing another embodiment of a removable anti-rebound portion provided in a child safety seat. Referring to FIG. 21, the anti-rebound portion 840 can have a lateral portion 840A and two side portions 840B connected to the lateral portion 840A on the left and right sides, respectively. The thus formed anti-rebound portion 840 has a generally U-shape. The seat shell 106 has a plurality of openings 842 corresponding to the plurality of angular positions of the anti-rebound portion 840 relative to the seat shell 106, and the openings 842 are provided in the front portions of the two lateral guard portions 116 above the extension means 120. The anti-rebound portion 840 can be detachably connected to the seat shell 106 by engaging the side portions 840B with either of the openings 842. When the child safety seat 100 is installed on the vehicle seat in a rear-facing position, the anti-rebound portion 840 can be positioned to extend at a desired angle above the extension means 120 and rest adjacent to the seat back of the vehicle seat. When not in use, the anti-rebound portion 840 can be removed from the seat shell 106. As in the previous embodiment, the extension means 120 can be locked to the seat shell 106 by an extension locking mechanism similar to the extension locking mechanism 122 described above.

[0048] 22 and 23 are two schematic side views showing an alternative embodiment in which the anti-rebound portion 940, which is held at a given angular position relative to the seat shell 106, can have an adjustable length. For example, the anti-rebound portion 940, which is attached to the seat shell 106 at the same angular position, can slide inward or outward relative to the seat shell 106 to change the length of the anti-rebound portion 940 extending outward from the seat shell 106. According to another example structure, the anti-rebound portion 940 may have a telescoping structure that allows the extension length to be adjusted. When the child safety seat 100 is attached to a vehicle seat in a rearward-facing position, the anti-rebound portion 940 can therefore be adjusted to properly contact the vehicle seat back. Furthermore, the embodiment of FIGS. 22 and 23 can also have an extension means 120 that can be actuated to adjust the leg space for the child. The extension means 120 can be locked to the seat shell 106 by an extension lock mechanism similar to the extension lock mechanism 122 described above.

[0049] Advantages of the child safety seat described herein include the ability to provide an extension means that allows for adjustment of leg space to accommodate children of different ages, and the provision of an anti-rebound portion that can prevent undesired rotation of the child safety seat in the event of a vehicle collision. The anti-rebound portion can be removed and installed as needed and / or adjusted to properly contact the vehicle seat back. Thus, the child safety seat provides greater flexibility and is safer to use.

[0050] Child safety seat implementations have been described in connection with specific embodiments. These embodiments are illustrative and not limiting. Many variations, modifications, additions, and improvements are possible. These and other variations, modifications, additions, and improvements may fall within the scope of the invention as defined in the claims.

[0051] [Appendix 1] A child safety seat, a seat shell for receiving a child, the seat shell having a backrest, a front end opposite the backrest, and a seat portion extending between the backrest and the front end; an extension means disposed adjacent the front end of the seat shell, the extension means being slidably connected to the seat shell, the extension means having a front end, the extension means being slidable relative to the seat shell, and capable of increasing or decreasing the distance between the front end of the extension means and the front end of the seat shell; an expansion locking mechanism operable to lock the expansion means relative to the seat shell; an anti-rebound part attachable to and detachable from the extension means, the child safety seat being attachable to the vehicle seat in a rearward-facing position by the anti-rebound part, the anti-rebound part being constrainedly disposed on the extension means and adjacent to a seat back of the vehicle seat; Equipped with a child safety seat. [Appendix 2] The extension means has a socket; The anti-rebound portion has a tube portion insertable into the socket. Child safety seats as described in Appendix 1. [Appendix 3] The child safety seat further comprises: an anti-rebound locking mechanism operable to lock the anti-rebound portion on the expansion means, the anti-rebound locking mechanism including a latch assembled with the tube portion of the anti-rebound portion; a release actuator assembled with the expansion means, the latch being operable to engage the expansion means and lock the anti-rebound portion to the expansion means when the tube portion is inserted into the socket, the release actuator being operable to disengage the latch from the expansion means and remove the anti-rebound portion from the expansion means; 1. A child safety seat as described in Appendix 2, comprising: [Appendix 4] the socket has an opening and a shutter; the shutter is spring-loaded and can close the opening of the socket when the anti-rebound part is removed from the expansion means; the tube portion of the anti-rebound part is insertable into the opening of the socket by pressing the shutter; Child safety seats as described in Appendix 2 or 3. [Appendix 5] The anti-rebound portion has a bent portion that forms a recess, the anti-rebound portion is attachable to the extension means with the recess facing rearward relative to the seat shell in a first configuration, and is attachable to the extension means with the recess facing forward relative to the seat shell in a second configuration. 10. A child safety seat according to any one of claims 1 to 4. [Appendix 6] The expansion lock mechanism has a lock portion and a release portion, each of which is connected to the expansion means; the locking portion is movable into engagement with the seat shell and is capable of locking the extension means in position relative to the seat shell; the release portion is operable to disengage the locking portion from the seat shell to unlock the extension means; 10. A child safety seat according to any one of claims 1 to 5. [Appendix 7] The expansion means a lateral portion extending across the width of the sheet portion; two bent portions connected to the lateral portions and protruding above the lateral portions on the left and right sides of the seat portion, respectively; and The anti-rebound portion can be respectively disposed on the two bending portions of the expansion means. 10. A child safety seat according to any one of claims 1 to 6. [Appendix 8] A child safety seat, a seat shell for receiving a child, the seat shell having a backrest, a front end opposite the backrest, and a seat portion extending between the backrest and the front end; an extension means disposed adjacent to the front end of the seat shell and slidably connected to the seat shell, the extension means having a front end, a lateral portion extending across the width of the seat portion, and two bent portions connected to the lateral portion and protruding above the lateral portions on the left and right sides of the seat portion, respectively, the extension means being slidable relative to the seat shell and capable of increasing or decreasing the distance between the front end of the extension means and the front end of the seat shell; an expansion locking mechanism operable to lock the expansion means relative to the seat shell; an anti-rebound portion carried by the extension means, the child safety seat being mountable to the vehicle seat in a rearward-facing position by the anti-rebound portion, the anti-rebound portion extending at an angle above the extension means and adjacent to a seat back of the vehicle seat, the anti-rebound portion being movable together with the extension means relative to the seat shell; Equipped with a child safety seat. [Appendix 9] the anti-rebound portion is connected to at least one of the two bending portions of the expansion means; Child safety seats as described in Appendix 8. [Appendix 10] The anti-rebound portion has a lateral portion and two side portions, the two side portions are constrainedly disposed on the two bent portions of the expansion means; Child safety seats as described in Appendix 9. [Appendix 11] the anti-rebound portion is movable relative to the expansion means in a forward direction for deployment and in a rearward direction for retraction; the anti-rebound portion is accommodated relative to the expansion means at a first angular position and deployed relative to the expansion means at a second angular position inclined from the first angular position; The anti-rebound portion extends forward and upward in the second angular position. Child safety seats as described in Appendix 8. [Appendix 12] the anti-rebound portion has a distal end; the distal end of the anti-rebound portion is disposed adjacent the front end of the expansion means in the first angular position and is displaced away from the front end of the expansion means in the second angular position. Child safety seats as described in Appendix 11. [Appendix 13] The anti-rebound part is connected to the expansion means via a link having two bars, Each of the two bars is pivotally connected to the expansion means and the anti-rebound part, respectively. A child safety seat as described in Appendix 11 or 12. [Appendix 14] The child safety seat further comprises: an anti-rebound locking mechanism operable to lock the anti-rebound portion relative to the expansion means; the anti-rebound locking mechanism includes a latch connected to the expansion means; the latch is movable to engage a locking structure on one of the two bars to lock the anti-rebound portion relative to the expansion means; Child safety seats as described in Appendix 13. [Appendix 15] the expanding means having a guide track; The anti-rebound portion has a pin that is guided to slide along the guide track. A child safety seat as described in Appendix 11 or 12. [Appendix 16] the guide track has a first track portion and a second track portion connected to each other; the first track portion has a linear shape; the second track portion has an arcuate shape; the sliding movement of the pin along the first track portion corresponds to a sliding displacement of the anti-rebound portion between the first angular position and an intermediate position; the sliding movement of the pin along the second track portion corresponds to a rotation of the anti-rebound portion between the intermediate position and the second angular position. Child safety seats as described in Appendix 15. [Appendix 17] The anti-rebound portion has an expandable structure. 10. A child safety seat as described in paragraphs 8, 11, 12, 15 or 16. [Appendix 18] the anti-rebound portion is a paddle pivotally connected to one of the two bending portions; the child safety seat has another anti-rebound part in the form of a second paddle pivotally connected to the other of the two bending parts, The two paddles are independently rotatable relative to the expansion means. Child safety seats as described in Appendix 8. [Appendix 19] The anti-rebound portion is a T-shaped bar. Child safety seats as described in Appendix 8. [Appendix 20] the anti-rebound portion is connected to the lateral portion of the expansion means at an intermediate position; Child safety seats as described in Appendix 8 or 19. [Appendix 21] the expansion lock mechanism has a lock portion and a release portion each connected to the expansion means; the locking portion is movable into engagement with the seat shell and is capable of locking the extension means in position relative to the seat shell; the release portion is operable to disengage the locking portion from the seat shell to unlock the extension means; 21. A child safety seat according to any one of appendixes 8 to 20. [Appendix 22] A child safety seat, a seat shell for receiving a child, the seat shell having a backrest, a front end opposite the backrest, and a seat portion extending between the backrest and the front end; an extension means disposed adjacent the front end of the seat shell, the extension means being slidably connected to the seat shell, the extension means having a front end, and being slidable relative to the seat shell so as to increase or decrease the distance between the front end of the extension means and the front end of the seat shell; an expansion locking mechanism operable to lock the expansion means relative to the seat shell; an anti-rebound section carried by the extension means and having a distal end, wherein the child safety seat can be attached to the vehicle seat in a rearward-facing position by the anti-rebound section, the anti-rebound section extending above the extension means and adjacent to a seat back of the vehicle seat, the distal end of the anti-rebound section being disposed adjacent to the front end of the extension means when the anti-rebound section is stored in a first angular position relative to the extension means and being displaced away from the front end of the extension means when the anti-rebound section is deployed to a second angular position tilted relative to the first angular position; A child safety seat equipped with [Appendix 23] The anti-rebound part is connected to the expansion means via a link having two bars, Each of the two bars is pivotally connected to the expansion means and the anti-rebound part, respectively. Child safety seats as described in Appendix 22. [Appendix 24] The child safety seat further comprises: an anti-rebound locking mechanism operable to lock the anti-rebound portion relative to the expansion means; the anti-rebound locking mechanism includes a latch connected to the expansion means; the latch is movable to engage a locking structure on one of the two bars to lock the anti-rebound portion relative to the expansion means. Child safety seats as described in Appendix 23. [Appendix 25] the expanding means having a guide track; The anti-rebound portion has a pin that is guided to slide along the guide track. Child safety seats as described in Appendix 22. [Appendix 26] the guide track has a first track portion and a second track portion connected to each other; the first track portion has a linear shape; the second track portion has an arcuate shape; the sliding movement of the pin along the first track portion corresponds to a sliding displacement of the anti-rebound portion between the first angular position and an intermediate position; the sliding movement of the pin along the second track portion corresponds to a rotation of the anti-rebound portion between the intermediate position and the second angular position. Child safety seats as described in Appendix 25. [Appendix 27] The anti-rebound portion has an expandable structure. 2. A child safety seat as described in paragraph 22, 25 or 26. [Appendix 28] the anti-rebound portion is a paddle pivotally connected to the left side of the expansion means; the child safety seat has a further anti-rebound part in the form of a second paddle pivotally connected to the extension means on its right side, The two paddles are independently rotatable relative to the expansion means. Child safety seats as described in Appendix 22. [Appendix 29] the expansion lock mechanism has a lock portion and a release portion each connected to the expansion means; the locking portion is movable into engagement with the seat shell to lock the extension means in position relative to the seat shell; the release portion is operable to disengage the locking portion from the seat shell to unlock the extension means. 29. A child safety seat according to any one of appendixes 22 to 28. [Appendix 30] A child safety seat, a seat shell for receiving a child, the seat shell having a backrest, a front end opposite the backrest, and a seat portion extending between the backrest and the front end; an extension means disposed adjacent the front end of the seat shell, the extension means being slidably connected to the seat shell, the extension means having a front end, the extension means being slidable relative to the seat shell, and capable of increasing or decreasing the distance between the front end of the extension means and the front end of the seat shell; an expansion locking mechanism operable to lock the expansion means relative to the seat shell; an anti-rebound part connected to the seat shell, the child safety seat being mountable to the vehicle seat in a rearward-facing position by the anti-rebound part, the anti-rebound part extending at an angle above the extension means and adjacent to a seat back of the vehicle seat; A child safety seat equipped with [Appendix 31] The anti-rebound portion is pivotally connected to the seat shell. Child safety seats as described in Appendix 30. [Appendix 32] the seat shell is fixedly connected to the first coupling portion, the anti-rebound portion is fixedly connected to a second connecting portion, and the second connecting portion is pivotally connected to the first connecting portion about a pivot axis; the child safety seat further comprises an anti-rebound locking mechanism operable to lock the anti-rebound portion relative to the seat shell; The anti-rebound locking mechanism includes a latch, a spring, and a release actuator. the latch is movable along the pivot axis between a locked position in which the latch engages with the first coupling portion and the second coupling portion, respectively, and an unlocked position in which the latch disengages from one of the first coupling portion and the second coupling portion; the spring biases the latch toward the locked position; the release actuator is provided on one of the first coupling portion and the second coupling portion and is operable to move the latch to the unlocked position. Child safety seats as described in Appendix 31. [Appendix 33] the seat shell having a channel and a plurality of detents disposed along the channel; the anti-rebound portion is movable along the channel for adjustment between a plurality of angular positions relative to the seat shell; each of the detents is configured to retain the anti-rebound portion and prevent movement from one of the angular positions to an adjacent other angular position; Child safety seats as described in Appendix 31. [Appendix 34] the seat shell includes a plurality of openings corresponding to a plurality of angular positions of the anti-rebound portion relative to the seat shell; the anti-rebound portion is removably connected to the seat shell by engaging with any of the openings; Child safety seats as described in Appendix 30. [Appendix 35] The anti-rebound portion is slidable inward or outward relative to the seat shell, thereby changing the length of the anti-rebound portion extending outward from the seat shell. Child safety seats as described in Appendix 30.

Claims

1. A child safety seat mountable on a vehicle seat in a rear-facing position, comprising: A seat shell for receiving a child, the seat shell having a backrest, a front end opposite the backrest, a seat portion extending between the backrest and the front end, and two lateral guard portions disposed adjacent to left and right boundary portions of the seat shell; an extension means disposed adjacent the front end of the seat shell, the extension means being slidably connected to the seat shell and having a front end, the extension means being slidable relative to the seat shell to increase or decrease the distance between the front end of the extension means and the front end of the seat shell; an expansion locking mechanism operable to lock the expansion means relative to the seat shell; an anti-rebound portion connected to the seat shell at a position forward of the lateral guard portion, the anti-rebound portion extending above the extension means at a desired angle and adjacent to a seat back of the vehicle seat when the child safety seat is mounted on the vehicle seat; Equipped with a child safety seat.

2. The anti-rebound portion is pivotally connected to the seat shell.

2. The child safety seat according to claim 1.

3. the seat shell is fixedly connected to the first coupling portion, the anti-rebound portion is fixedly connected to a second coupling portion, and the second coupling portion is pivotally connected to the first coupling portion about a pivot axis; the child safety seat further comprises an anti-rebound locking mechanism operable to lock the anti-rebound portion relative to the seat shell; The anti-rebound locking mechanism includes a latch, a spring, and a release actuator. the latch is movable along the pivot axis between a locked position in which the latch engages the first coupling portion and the second coupling portion, respectively, and an unlocked position in which the latch disengages from one of the first coupling portion and the second coupling portion; the spring biases the latch toward the locked position; the release actuator is provided on one of the first coupling portion and the second coupling portion and is operable to move the latch to the unlocked position.

3. The child safety seat according to claim 2.

4. the seat shell having a channel and a plurality of detents disposed along the channel; the anti-rebound portion is movable along the channel for adjustment between a plurality of angular positions relative to the seat shell; each of the detents is configured to retain the anti-rebound portion and prevent movement from one of the angular positions to an adjacent other angular position; 3. The child safety seat according to claim 2.

5. the seat shell includes a plurality of openings corresponding to a plurality of angular positions of the anti-rebound portion relative to the seat shell; the anti-rebound portion is removably connected to the seat shell by engaging with any of the openings; 2. The child safety seat according to claim 1.

6. the anti-rebound portion is slidable inward or outward relative to the seat shell to change the length of the anti-rebound portion extending outward from the seat shell; 2. The child safety seat according to claim 1.

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