A chair for a child
The chair's hinge assembly with actuators and locks allows for easy adjustment and collapse, addressing the challenge of portability and storage in child bouncers by enabling seamless transitions between seating positions.
Patent Information
- Application Number
- GB2023007364
- Authority / Receiving Office
- GB · GB
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2023-05-17
- Publication Date
- 2025-06-25
- Estimated Expiration
- 2043-05-17
AI Technical Summary
Existing child bouncers are cumbersome to transport and store due to their size, and there is a need for a mechanism that allows for easy adjustment and collapse of seating positions to enhance portability and storage convenience.
A chair with a hinge assembly that includes a first actuator to adjust between upright and reclined positions and a second actuator to collapse the seat, utilizing a reclining lock and collapsing lock mechanism for seamless transitions between these positions, facilitated by actuators and cables for manual operation.
Enables easy adjustment and collapse of seating positions, enhancing the chair's portability and storage by allowing a single-handed operation to switch between upright, reclined, and collapsed configurations.
Smart Images

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Abstract
Description
Technical Field The present disclosure relates to a chair for a child and is particularly, although not exclusively, concerned with a bouncer for a child which is easier to transport and store. Background Chairs with bouncing functions, typically referred to as bouncers, are often used by parents for seating young children. Bouncers may provide a plurality of seating position for the child, such as an upright seating position and a reclined seating position. The bouncing motion of the chair can be soothing to the child and can be used to encourage the child to sleep. Bouncers for children may be collapsible in order to reduce the size of the bouncer to improve the ease with which the bouncer can be transported and stored. Statements of Invention According to an aspect of the present disclosure, there is provided a chair, e.g. a bouncer chair, for a child, the chair comprising: a base frame comprising a base member to be rested on a surface on which the chair is placed; a cradle frame for supporting a seat for the child to sit on; a hinge assembly, wherein the cradle frame is coupled to the base frame by the hinge assembly, and wherein the hinge assembly is configured to determine a range of angles at which the cradle frame can be arranged relative to the base frame about a hinge axis; a first actuator, wherein the first actuator is configured to unlock a reclining lock of the hinge assembly to enable the cradle frame to be arranged relative to the base member in a first range of angles between an upright position and a reclined position; and a second actuator, wherein the second actuator is configured to unlock a collapsing lock of the hinge assembly and, when actuated in conjunction with the first actuator, enable the cradle frame to be arranged relative to the base member in a second range of angles between the upright position and a collapsed position in which the angle between the seat and the base member is less that in the reclined position. The cradle frame may comprise a resilient cradle attachment member. The cradle frame may be coupled to the hinge assembly by the cradle attachment member. The hinge assembly may comprise a first hinge member configured to rotate together with the cradle frame. The hinge assembly may further comprise a second hinge member configured to rotate together with the base frame. The reclining lock may be selectively movable between a locking position, in which the reclining lock engages the first hinge member and the second hinge member to resist rotation of the first hinge member relative to the second hinge member, and an unlocked position, in which the reclining lock is disengaged from one of the second hinge member to permit rotation of the first hinge member relative to the second hinge member. Unlocking the reclining lock may comprise moving the reclining lock to the unlocked position. The first hinge component may comprise a first reclining lock opening for receiving the reclining lock. When the reclining lock is in the unlocked position, the reclining lock may be substantially completely received within the first reclining lock opening. When the reclining lock is in the locked position, the reclining lock may protrude out of the first reclining lock opening. The first hinge member may be configured to rotate relative to the second hinge member about the hinge axis. The reclining lock may be configured to move in a reclining lock direction parallel with the hinge axis between the locking position and the unlocking position. The reclining lock may be slidably coupled to the first hinge members. The reclining lock may be configured to slide in a direction parallel with the hinge axis. The reclining lock may comprise one or more reclining locking surfaces extending in radial directions relative to the hinge axis. The second hinge member may comprise a plurality complementary locking surfaces extending in radial directions relative to the hinge axis. Respective ones of the complementary locking faces may be engageable with the reclining locking surfaces when the cradle frame is in the upright position and the reclined position, in order to restrict relative rotations of the first and second hinge members. The second hinge member may comprise a second reclining lock opening configured to receive at least part of the reclining lock when the reclining lock is in the locking position, wherein complementary locking faces are inside the second reclining lock opening. The reclining lock may comprise a substantially circular disc having one or more radially protruding teeth or slots. The relining locking surfaces may be provided on the radially extending teeth or slots. One of the first and second hinge members may comprise a substantially cylindrical interior surface and the other of the first and second hinge members may comprise a substantially cylindrical outer surface configured to be at least partially received inside of the one of the first and second hinge members. Central axes of the substantially cylindrical surfaces of the first and second hinge members may be aligned with the hinge axis. The reclining lock may be configured to rotate together with the first hinge member. The hinge assembly may comprise a reclining lock biasing member configured to bias the reclining lock into the locking position. The collapsing lock may be configured to rotate together with the second hinge member. The collapsing lock may be movable between a locked position, in which the collapsing lock is engageable with the first hinge members and / or the reclining lock when the cradle frame is in a position between the reclined position and the collapsed position to limit rotation of the first hinge member relative to the second hinge member so as to prevent the cradle frame moving to the collapsed position, and an unlocked position in which the collapsing lock does not engage the first hinge member and / or the reclining lock. The collapsing lock may comprise a pin slidably coupled to the second hinge member. The pin may be slidable in a direction with a component perpendicular to the hinge axis. The first hinge member may comprise a collapsing lock opening. The collapsing lock may be configured to project at least partially into the collapsing lock opening in the locked position. The collapsing lock may be configured to extend through the collapsing lock opening to engage the reclining lock in the locked position of the collapsing lock. The first actuator may be provided on the cradle frame. The second actuator may be provided on the base frame. The second actuator may be a foot pedal. To avoid unnecessary duplication of effort and repetition of text in the specification, certain features are described in relation to only one or several aspects or embodiments of the invention. However, it is to be understood that, where it is technically possible, features described in relation to any aspect or embodiment of the invention may also be used with any other aspect or embodiment of the invention. For example, features described in relation to the first mentioned aspect may be combined with the features of the second mentioned aspect. Brief Description of the Drawings For a better understanding of the present invention, and to show more clearly how it may be carried into effect, reference will now be made, by way of example, to the accompanying drawings, in which: Figure 1 is a rear perspective view of a chair according to arrangements of the present disclosure, with a cradle frame in an upright position; Figure 2 is a rear perspective view of the chair, with the cradle frame in a collapsed position; Figure 3 is an exploded view of a hinge assembly of the chair; Figures 4 and 5 are cross-sectional view of the hinge assembly with a reclining lock in locking and unlocked positions respectively; Figure 6 is a front perspective view of the chair schematically illustrating routing of cables within the cradle frame; Figure 7 is a cross-sectional view of a first actuator of the chair; Figure 8 is a compound view including a side view of the chair and a side cross-sectional view of the hinge assembly, when the cradle is in the upright position; Figure 9 is a compound view including a side view of the chair and a side cross-sectional view of the hinge assembly, when the cradle is in the reclined position; Figure 10 is a perspective sectional view of the hinge assembly; Figure 11 is a side sectional view of the hinge assembly; Figure 12 is a compound view including a side view of the chair and a side cross-sectional view of the hinge assembly, when the cradle is in a collapsed position; Figure 12 is a compound view including a side view of the chair and a side cross-sectional view of the hinge assembly, when the cradle is in a collapsed position; Figure 13 is a compound view including a side view of the chair and a side cross-sectional view of the hinge assembly, when the cradle is in a reclined position; Figure 14 is a front perspective view of the chair schematically illustrating routing of cables within the base frame; and Figure 15 is a cross-sectional view of a second actuator of the chair. Detailed Description With reference to Figure 1 and 2, a chair 2 according to arrangements of the present disclosure comprises a base frame 10, a cradle frame 20 and a hinge assembly 300 for coupling the base frame 10 to the cradle frame 20. In the arrangement depicted, the chair 2 comprises a pair of hinge assemblies 300 with one hinge assembly being provided on either lateral side of the chair 2. The hinge assemblies 300 provided on either lateral side of the chair 2 may be mirror images of one another. In the description below, a single hinge assembly 300 is described. However, it will be appreciated that the features described in relation to the hinge assembly apply equally to the hinge assemblies provided on each lateral side. The base frame 10 comprises one or more base frame members 12. In the arrangement depicted, the base frame members 12 comprise tubular, e.g. circular tubular, members. The base frame members 12 may be generally disposed within a base plane PB. For example, centrelines of the tubular base frame members may be disposed within the base plane. One or more of the base frame members 12 are configured to be rested on a surface on which the chair is standing in use of the chair 2. Ones of the base frame members, e.g. side base frame members 12a, 12b, may be disposed on either lateral side of the chair 2 for supporting the chair 2 at its lateral sides. As described in greater detail below, the base frame members, e.g. the side base frame members, may be coupled to the hinge assembly 300 at a front end of the base frame 10. Portions of the side base frame members 12a, 12b may extend in a substantially longitudinal direction of the chair 2 from the hinge assembly 300 towards the rear end of the chair 2. One or more of the base frame members 12 may comprise laterally extending frame portions 12c, 12d, which extend from the sides of the base frame to join together the side base frame members 12a, 12b at the rear end of the base frame. As depicted, the laterally extending frame portions 12c, 12d may be integrally formed with respective side base frame members 12a, 12b. The laterally extending frame portions 12c, 12d may comprise arcuate portions of the side base frame members, which bend inwards (relative to the lateral direction of the chair) towards each other at the rear end of the base frame 10. The cradle frame 20 may comprise one or more cradle frame members 22. As depicted, the cradle frame members may comprise tubular, e.g. circular tubular member. The cradle frame members 22 may be generally disposed within a cradle plane Pc. For example, centrelines of the cradle frame members may be disposed within the cradle plane Pc. The cradle frame 20 is for supporting a seat for the child to sit on. For example, the seat may be coupled to, e.g. between, side cradle frame members 22a, 22b provided on either lateral side of the chair 2. As depicted, the cradle frame members 22 may comprise bend portions 22c, 22d, 22e, 22f which curve inwardly (relative to the lateral direction of the chair) towards one another at front and rear ends of the cradle frame to join together the side cradle frame members 22a, 22b at the front and rear ends of the cradle frame. The bend portions may be integrally formed within the side cradle frame members 22a, 22b. For example, a bend portion may be formed at each longitudinal end of the side cradle frame members. In this way, the cradle frame may form a circular or oval shape, e.g. straight side oval shape in the cradle plane Pc. When the seat is supported by the cradle frame, a head rest of the seat may be arranged at the rear end of the cradle frame and a foot end of the seat may be arranged at the front end of the cradle frame. A longitudinal direction of the chair may be a direction with a component in a direction extending between the rear end and front end of the cradle frame. The cradle frame 20 is coupled to the base frame 10 by the hinge assembly 300, such that the cradle frame, e.g. the cradle frame members, is an angle a relative to the base frame 10, e.g. the base frame members. As used herein, the angle between the cradle frame and the base frame may refer to the angle between the base plane Pb and the cradle plane Pc As described in greater detail herein, the angle of the cradle frame 20 relative to the base frame 10 may be determined by, e.g. set based on the operation of, the hinge assembly 300. As mentioned above, the seat for the child to sit on may be supported by the cradle frame 20, and hence, an angle of the seat, e.g. a backrest of the seat, relative to the surface on which the chair 2 is standing may be determined by the angle a of the cradle frame 20 relative to the base frame 10. The cradle frame 20 may comprise one or more cradle attachment members 24. The cradle frame 20 may be coupled to the hinge assembly 300 by the cradle attachment member 24. For example, the cradle frame may comprise a cradle attachment member 24 for attaching the cradle frame to the hinge assembly 300 on either lateral side of the chair 2. The cradle attachment members 24 may be resilient members. The resilient nature of the cradle attachment members 24 may enable the cradle frame 20, and hence the seat, to bounce relative to the base frame 20. In other words, the chair 2 may be a bouncer. The chair 2 further comprises a first actuator 700 and a second actuator 1500. As described in greater detail below, the first actuator 700 is configured to unlock a reclining lock 330 of the hinge assembly 300 (illustrated in Figures 3, 4 and 5) to enable the cradle frame 20 to be arranged relative to the base frame 10 in a first range of angles between an upright position and a reclined position, e.g. in which the cradle frame 20 is reclined relative to when the cradle frame is in the upright position. For example, the angle a between the cradle frame 20 and the base frame 10 may be less when the cradle frame 20 is in the reclined position compared to when the cradle frame is in the upright position. In other words, when the first actuator 700 is actuated to unlock the reclining lock 330, the cradle frame 20 may be movable between the upright position and the reclined position. As described above, the seat for the child may be supported by the cradle frame 20 and the angle of the seat, e.g. a seat back of the seat may be determined by the angle of the cradle frame relative to the base frame. The upright position of the cradle frame may correspond to a position in which a child can be seated in an upright position in the seat and the reclined position of the cradle frame may correspond to a position in which a child seating in the seat is in a more reclined position, compared to the upright position. The second actuator 1500 is configured to unlock a collapsing lock 340 of the hinge assembly (illustrated in Figure 3). When the collapsing lock 340 is unlocked whilst the reclining lock is unlocked 330, e.g. when the second actuator is actuated in conjunction with the first actuator, the cradle frame 20 is enabled to be arranged at an angle relative to the base frame 10 within a second range of angles between the upright position and a collapsed position, as depicted in Figure 2. In the collapsed position the angle a between the cradle frame and the base frame may be less than in the upright position and the reclined position. As depicted in Figure 2, in the collapsed position, the cradle frame members may be in contact with the base frame members, e.g. at the rear ends of the cradle frame and the base frame. In the collapsed position, when the base frame members 12 are rested on a surface the rear end of the cradle frame may be below, e.g. close to the surface than, the front end of the cradle frame. With reference to Figures 3, 4 and 5, the hinge assembly 300 comprises a first hinge member 310 and a second hinge member 320. The first hinge member 310 may be coupled to the cradle frame 20. In particular, the first hinge member 310 may be coupled to one of the cradle attachment members 24. Accordingly, the first hinge member 310 is configured to rotate together with the cradle frame 20. The second hinge member 320 may be coupled to the base frame 10, e.g. to one of the base frame members 12. Accordingly, the second hinge member 320 may be configured to rotate together with the base frame 10. The first hinge member 310 may be configured to rotate relative to the second hinge member 320 about a hinge axis Ah. As depicted, the first hinge member 310 may comprise a substantially cylindrical portion 312 comprising a substantially cylindrical outer surface 312a. A central axis of the substantially cylindrical outer surface may be aligned with the hinge axis Ah. The second hinge member 320 may comprise a portion 322 having a substantially cylindrical interior surface 322a. The second hinge member may be coupled to the first hinge member such that a central axis of the cylindrical interior surface 322a of the second hinge member is aligned with the hinge axis Ah. When the second hinge member is coupled to the first hinge member in this way, the cylindrical portion 312 of the first hinge member 310 may be at least partially received inside of the portion 322 of the second hinge member 304. The first and second hinge members 310, 320 may therefore be configured to rotate relative to one another about the hinge axis AH due to engagement between the cylindrical outer surface 312a of the first hinge member and the cylindrical interior surface 322a of the second hinge member. In other arrangements, the cylindrical outer surface may be provided on the second hinge member and the cylindrical interior surface may be provided on the first hinge member. Alternatively, the first and second hinge members may be coupled together in any other way to facilitate relative rotation of the first and second hinge members about the hinge axis Ah. The reclining lock 330 is selectively movable between a locked position, depicted in Figure 4, in which the reclining lock 330 engages the first hinge member 310 and the second hinge member 320, and an unlocked position, depicted in Figure 5, in which the reclining lock 330 does not engage, e.g. is disengaged from, the second hinge member 320. In the locked position, engagement of the first and second hinge members 310, 320 with the reclining lock 330 may act to restrict or resist rotation of the first and second hinge members 310, 320 relative to one another. The hinge assembly 300 further comprises a reclining lock moving part 314. The reclining lock moving part 314 may be movably, e.g. slidably, coupled to the first hinge member 310. Further, the reclining lock moving part 314 may be coupled to the reclining lock 330. As depicted, the reclining lock moving part 314 may comprise a lock attachment portion 314a which extends though one or more openings formed in the first hinge member 310 to reach the reclining lock. The reclining lock moving part 314 may be configured to move, e.g. slide, relative to the first hinge member 310 to move the reclining lock 330 between the locked position and the unlocked position. The hinge assembly 300 may further comprise a biasing member 315, such as a coil spring, configured to bias the reclining lock moving part 314 to move the reclining lock 330 into the locked position. As illustrated in Figure 6, the chair 2 may comprise one or more reclining lock cables 600 extending from the first actuator 700 to the hinge assembly 300. For example, the reclining lock cables 600 may extend though hollow interiors of the cradle frame members between the first actuator 700 and the hinge assembly 300. In particular, the chair may comprise one reclining lock cable extending from the first actuator 700 to each of the hinge assemblies 300 provided on either lateral side of the chair. When the first actuator 700 is actuated, the reclining lock cables may be pulled, in order to move the reclining lock into the unlocked position. Returning briefly to Figures 3, 4 and 5, the reclining lock moving part 314 may comprise an actuator attachment portion 314b. The actuator attachment portion 314b may be arranged on the opposite side of the opening in the first hinge member 310 through which the reclining lock moving part 314 extends to reach the reclining lock from the lock attachment portion 314a. First ends 600a of the respective reclining lock cables may be coupled to the articulator attachment portion 314b of the hinge assembly 300, e.g. provided on each lateral side of the chair. With reference to Figure 7, the first actuator 700 may comprise a housing 710 and a button 720 movably, e.g. slidably, mounted on the housing. Part of the button may protrude out of the housing 710 to be pressed by a user. The button 720 may comprise a wedge 722 arranged inside the housing and having one or more ramp faces 722a arranged at angles, e.g. non-zero angles, relative to the direction in which the button moves relative to the housing. The first actuator 700 further comprises one or more cable pullers 730 slideably mounted on the housing 710. Second ends 600b of the reclining lock cables may be coupled to respective ones of the cable pullers 730. When the button 720 is moved into the housing 710, the button may push on the cable pullers 730 and cause the cable pullers 730 to pull on the cables 600. For example, the cable pullers 730 may comprise complementary ramp faces 732 and the ramp faces 722a formed on the wedge of the button may engage the complementary ramp faces on the cable pullers 730 to urge the cable pullers to move in a direction at an angle, e.g. perpendicular, to the direction in which the button is moved by the user. As shown in Figure 7, the ramp faces 722a may be formed on opposing lateral sides of the wedge and the cable pullers 730 may be urged to move in opposite lateral directions away from the wedge. In the arrangements of Figure 7, two cables 60 are provided, which cross over one another within the housing to couple to the cable pullers provided on the opposite sides of the housing. When the cable pullers 730 are urged to move in opposite lateral directions, the two cables 600 are therefore pulled in opposite lateral directions to actuate the reclining locks 330 provided in the hinge assemblies 300 on opposite lateral sides of the chair. The actuator 700 may further comprise one or more biasing elements, such as coil springs, configured to bias the button 720 and / or the cable pullers 730 into positions in which the cables are not pulled by the cable pullers. In the arrangement shown, the first actuator 700 is provided on the cradle frame 20. However, in other arrangements, the first actuator 700 may be provided on another part of the chair, such as on the hinge assembly 300. Returning to Figures 3, 4 and 5, The reclining lock 330 may be coupled to the first hinge member 320 to rotate together with the first hinge member about the hinge axis Ah. However, when the reclining lock 330 is not engaging the second hinge member 320, the reclining lock 330 may be configured to rotate relative to the second hinge member about the hinge axis Ah. The reclining lock 330 may be configured to move, e.g. slide, relative to the first and second hinge members 310, 320 in a direction parallel with the hinge axis AH between the locking position and the unlocking position. The first hinge member 310 may comprise a first reclining lock opening 316 for receiving the reclining lock 330. The reclining lock may be movable, e.g. slidable, into and out of the first reclining lock opening 316, e.g. in the direction parallel with the hinge axis Ah. When the reclining lock 330 is in the unlocked position, the reclining lock may be received, e.g. substantially completely received, within the first reclining lock opening 316. For example, the reclining lock 330 may be moved by the reclining lock moving part 314 into the first reclining lock opening 316 when the reclining lock moving part moves the reclining lock into the unlocked position. In the locking position of the reclining lock 330, the reclining lock may protrude out of the first reclining lock opening 316, by a greater amount than when in the unlocked position. The part of the reclining lock protruding out of the first reclining lock opening may engage the second hinge member 320 to prevent rotation of the first hinge member 310 relative to the second hinge member 320. The second hinge member 320 may comprise a second reclining lock opening 324. The second reclining lock opening 324 may be configured, e.g. shaped, to receive part of the reclining lock 330 when the reclining lock protrudes out of the first reclining lock opening 316. For example, the second reclining lock opening 324 may be configured such that the part of the reclining lock 330 protruding out of the first reclining lock opening 316 is received within the second reclining lock opening 324. The reclining lock 330 may be slidable into and out of the second reclining lock opening 324 in the direction parallel with the hinge axis Ah, e.g. between the locking and unlocked positions. With reference to Figures 8 to 10, the reclining lock 330 may comprise one or more locking surfaces 332 for engaging the second hinge member 320. The locking surfaces may be substantially planar, and may extend in radial directions, e.g. respective radial direction, relative to the hinge axis Ah. The reclining lock 330 may comprise a plurality of the locking surfaces 332, which may be spaced circumferentially around the reclining lock 330, e.g. about the hinge axis Ah. As depicted, the reclining lock may have a first locking surface 332a and a second locking surface 332b, which may be arranged at a first angle relative to one another around the reclining lock. The first angle may correspond to a difference in angle between the upright position and the reclined position of the cradle frame relative to the base frame. The reclining lock may further comprise a third locking surface 332c, which may be arranged at a second angle relative to the first locking surface 332a around the reclining lock. The locking surfaces 332 may be parallel with the hinge axis Ah and may extend a locking surface axial distance in a direction parallel with the hinge axis Ah. The second hinge member 320 may comprise one or more complementary locking surfaces 322. The complementary locking surfaces 322 may be substantially planar, and may extend in radial directions relative to the hinge axis Ah. The complementary locking surfaces may be parallel with the hinge axis Ah and may extend a axial distance in a direction parallel with the hinge axis Ah. As depicted, the second hinge member 320 may comprise a plurality of the complementary locking surfaces 322, which may be spaced circumferentially around the second hinge member 320, e.g. about the hinge axis. In particular, the second hinge member may comprise a first complementary locking surface 332a and a second complementary locking surface, which may be arranged at a third angle relative to the first complementary locking surface around the second hinge member 320. The second hinge member may further comprise a third complementary locking surface 322c, which may be arranged at the second angle relative to the first complementary locking surface 322a around the second hinge member. The complementary locking surfaces 322 may be provided inside the second reclining lock opening 324, so that the complementary locking surfaces 322 can engage the protruding part of the reclining lock 330 within the second reclining lock opening. When the reclining lock 330 is in the locking position, one or more of the locking surfaces 332 may be engageable with one or more, e.g. respective ones, of the complementary locking surfaces 322 to prevent rotation of the reclining lock 330, and hence the first hinge member 310, relative to the second hinge member 320. In particular, one or more of the locking surfaces may be engaged with one or more, e.g. respective ones, of the complementary locking surfaces when the cradle frame is in the upright position or in the reclining position relative to the base frame and the reclining lock is in the locked position. As illustrated in Figure 8, when the cradle frame 20 is in the upright position, the first locking surface 322a may be aligned with the first complementary locking surface 332a, and the third locking surface 322c may be aligned with the third complementary locking surface 332c. When the reclining lock is in the locking position, the first locking surface 322a may engage the first complementary locking surface 332a to prevent rotation of the cradle frame towards the reclined position. Further, the third locking surface 322c may be engage the third complementary locking surface 332c to prevent rotation of the cradle frame in a direction away from the reclined position, e.g. into a more upright position. As illustrated in Figure 9, when the cradle frame 20 is in the reclined position, the second locking surface 332b may be aligned with the first complementary locking surface 332a and the third locking surface 332c may be aligned with the second complementary locking surface 332b. When the reclining lock is in the locking position, the third locking surface 322c may engage the second complementary locking surface 332b to prevent rotation of the cradle frame towards the upright position. Further, the second locking surface 322b may engage the first complementary locking surface 332a to prevent rotation of the cradle frame away from the upright position, e.g. into a more reclined position. As illustrated, in some arrangements, the reclining lock 330 may comprise additional locking surfaces and the second hinge member may comprise additional complementary locking surfaces for engaging one another when the cradle frame is in the upright position and the reclined position to prevent rotation of the cradle frame relative to the base frame. As depicted, the reclining lock 330 may comprise one or more radially projecting wedges or teeth 336, which project radially outward from a body part 338 of the reclining lock (relative to the hinge axis). In the arrangement shown, the body part comprises a substantially circular disc, a centreline of which may be aligned with the hinge axis Ah. The teeth 336 may extend through an angle circumferentially about the body part 338. Two of the locking surfaces 332 may be provided on surfaces on either circumferential side of the teeth 336. Similarly, the second hinge member 320 may comprise a plurality of radially projecting wedges or teeth 326, which project radially inward into the second reclining lock opening (relative to the hinge axis). Each of the teeth may extend through an angle circumferentially about the second reclining lock opening. Two of the complementary locking surfaces may be provided on surfaces on either circumferential side of the teeth. The teeth 336, 326 formed on the reclining lock 330 and the second hinge member 320 may prevent the reclining lock 330 from moving into the locking position when the locking surfaces and complementary locking faces are not correctly aligned. With reference to Figures 10, 11 and 12, the collapsing lock 340 may comprise a pin movably, e.g. slidably, mounted on the second hinge member 320. The collapsing lock 340 may thereby be configured to rotate together with the second hinge member about the hinge axis Ah. The collapsing lock 340 may be configured to move, e.g. slide, relative to the second hinge member 320 in a direction towards and away from, e.g. perpendicular to the hinge axis Ah. The collapsing lock 340 may be configured to move between a locked position (illustrated in Figures 10 and 11), in which the collapsing lock is engageable with the first hinge member 310 and / or the reclining lock 330 and an unlocked position (illustrated in Figure 12), in which the collapsing lock does not engage the first hinge member 310 or the reclining lock 330. As shown in Figure 10, the first hinge member 310 may comprise a collapsing lock opening 318, through which the collapsing lock 340 can extend to engage the reclining lock 330 in the locking position of the collapsing lock 340. When the collapsing lock 340 is in the locking position, the collapsing lock may be arranged to engage the reclining lock 330 and / or the first hinge member 310 when the cradle frame is in a position between the reclined position and the collapsed position. For example, as shown in Figure 11, the first locking surface of the reclining lock may engage the collapsing lock after the first hinge member has rotated through an angle p, which may be greater than an angle between the upright position and the reclined position (e.g. the first angle). As illustrated in Figure 12, when the collapsing lock 340 is in the unlocked position, in which the collapsing lock 340 does not protrude through the collapsing lock opening 318 to engage the reclining lock 330, the first hinge member 310 may be rotated beyond the reclined position into the collapsed position. In order to rotate the first hinge member 310 into the collapsed position, the reclining lock 330 may be moved to the unlocked position in addition to moving the collapsing lock 340 into the unlocked position, so that the locking surfaces 332 do not engage the complementary locking surfaces 322. With reference to Figure 13, the collapsing lock 340 may be biased to move into the locked position. For example, the hinge assembly 300 may comprise a biasing member, such as a coil spring, configured to bias the collapsing lock 340 into the locked position. When the cradle frame 20 is in the collapsed position, a distal end 340a of the collapsing lock may engage the outer surface 310a of the first hinge member outside of the collapsing lock opening 318, so that the collapsing lock 340 cannot pass through the collapsing lock opening to engage the reclining lock 330. As the cradle frame 20 is moved towards the reclined position, the collapsing lock 340 may become aligned with the collapsing lock opening 318 and may move through the collapsing lock opening to engage the reclining lock 330 due to the action of the biasing member. With reference to Figures 14 and 15, the chair may further comprise one or more collapsing lock cables 1400 extending from the second actuator 1500 to the hinge assembly 300. For example, the collapsing lock cable 1400 may extend though hollow interiors of the base frame members between the second actuator 1500 and the hinge assembly 300. In particular, the chair may comprise one collapsing lock cable extending from the second actuator 1500 to each of the hinge assembles 3 provided on either lateral side of the chair 2. When the second actuator 1500 is actuated, the collapsing lock cables may be pulled, in order to move the collapsing lock 340 into the unlocked position. First ends 1400a of the collapsing lock cables may be coupled to the collapsing locks and second ends 1400b of the collapsing lock cables may be coupled to the actuator 1500. Referring now to Figure 15, the second actuator 1500 comprises a housing part 1502, forming and interior space of the actuator 1500, and a lid part 1504 for closing the interior space. The actuator 1500 further comprises a slider 1506 arranged within the interior space. The slider may be movably, e.g. slidably, coupled to the housing part 1502. The cable 1400, e.g. second end 1400b of the cable, may be coupled to the slider 1506. The lid part 1504 may comprises a wedge 1504a extending into the interior space. The lid part 1504 may be resiliently deformable and may be configured such that deforming the lid part, e.g. by pressing on the lid part, causes the wedge 1504a to engage slider 1506. The wedge may comprise a ramp surface 1504b and the slider 1506 may comprise a complementary ramp surface 1506a. The actuator 1500 may be configured such that the wedge 1504a, e.g. the ramp surface 1504b of the wedge, engages the complementary ramp surface 1506a of the slider when the lid part is deformed and engagement between the wedge and the ramp surface urges the slider 1506 to move, e.g. slide, and pull on the cable 1400. When the chair 2 comprises a hinge assembly 300 on either lateral side of the chair, the actuator 1500 may comprise a further slider 1508 provided within the interior pace of the actuator and movably, e.g. slideably coupled to the housing part 1502. Another of the collapsing lock cables, may be coupled to the further slider 1508. The wedge 1504a may comprise a further ramp surface 1504c and the further slider 1508 may comprise a further complementary ramp surface 1508a. The actuator 1500 may be configured such that deforming the lid part 1504 causes the wedge 1504a, e.g. the further ramp surface 1504c, to engage the further slider, e.g. the further complementary ramp surface 1508a of the further slider. Engagement between the wedge and the further complementary ramp surface 15708a of the further slider may urge the slider to move, e.g. slide, and pull the other of the collapsing lock cables. As shown in Figure 15, the ramp surfaces 1504b, 1504c may be formed on opposing lateral sides of the wedge and the sliders 1506, 1508 may be urged to move in opposite lateral directions away from the wedge. In the arrangements of Figure 15, two collapsing lock cables 1400 are provided, which cross over one another within the housing 1502 to couple to the sliders 1506, 1508 provided on the opposite sides of the housing. When the sliders 1506, 1508 are urged to move in opposite lateral directions, the two cables 1400 are therefore pulled in opposite lateral directions to actuate the collapsing locks provided in the hinge assemblies 300 on opposite lateral sides of the chair 2. Due to the resiliently deformable nature of the lid part 1504, releasing the lid part may cause the wedge 1504a to move away from the slider 1506 and further slider 1508. The slider and further slider may be biased, e.g. by one or more biasing elements, such as coil springs, to return to their original positions, e.g. prior to being urged to move by the wedge. In other arrangements, the lid part 1504 may not be resiliently deformable, but may comprise a button that is movable, e.g. slidable, relative to the housing part 1502. The button may comprise the wedge 1504a and may be moved relative to the housing 1502 in order to engage the slider 1506 and further slider 1508. In such arrangements, the actuator 1500 may comprise a biasing element, such as a coil spring, configured to bias the button towards a potion in which the wedge 1504a does not urge the slider and further slider to pull the respective collapsing lock cables. The second actuator 1500 may be a foot operated actuator, e.g. a foot pedal. In the arrangement shown, the second actuator is provided on the base frame 10. However, in other arrangements, the second actuator 500 may be provided on another part of the chair, such as on the hinge assembly. In alternative arrangements, the second actuator 1500 may be any other type of actuator, such as a hand actuatable button, slider or lever. Due to the configuration of the first and second actuators 700, 150 and the hinge assembly 300 as described herein, the chair 2 may be reclined and collapsed using only a single hand. It will be appreciated by those skilled in the art that although the invention has been described by way of example, with reference to one or more exemplary examples, it is not limited to the disclosed examples and that alternative examples could be constructed without departing from the scope of the invention as defined by the appended claims.
Claims
1. A chair for a child, the chair comprising:a base frame comprising a base member to be rested on a surface on which the chair is placed;a cradle frame for supporting a seat for the child to sit on;a hinge assembly, wherein the cradle frame is coupled to the base frame by the hinge assembly, and wherein the hinge assembly is configured to determine a range of angles at which the cradle frame can be arranged relative to the base frame about a hinge axis;a first actuator, wherein the first actuator is configured to unlock a reclining lock of the hinge assembly to enable the cradle frame to be arranged relative to the base member in a first range of angles between an upright position and a reclined position; anda second actuator, wherein the second actuator is configured to unlock a collapsing lock of the hinge assembly and, when actuated in conjunction with the first actuator, enable the cradle frame to be arranged relative to the base member in a second range of angles between the upright position and a collapsed position in which the angle between the seat and the base member is less than in the reclined position.
2. The chair of claim 1, wherein the cradle frame comprises a resilient cradle attachment member, and wherein the cradle frame is coupled to the hinge assembly by the cradle attachment member.
3. The chair of claim 1 or 2, wherein the hinge assembly comprises:a first hinge member configured to rotate together with the cradle frame;a second hinge member configured to rotate together with the base frame, wherein the reclining lock is selectively movable between a locking position, in which the reclining lock engages the first hinge member and the second hinge member to resist rotation of the first hinge member relative to the second hinge member, and an unlocked position, in which the reclining lock is disengaged from one of the second hinge member to permit rotation of the first hinge member relative to the second hinge member, wherein unlocking the reclining lock comprises moving the reclining lock to the unlocked position.
4. The chair of claim 3, wherein the first hinge component comprises a first reclining lock opening for receiving the reclining lock, wherein when the reclining lock is in theunlocked position, the reclining lock is substantially completely received within the first reclining lock opening and when the reclining lock is in the locked position, the reclining lock protrudes out of the first reclining lock opening.
5. The chair of claim 3 or 4, wherein the first hinge member is configured to rotate relative to the second hinge member about the hinge axis, and wherein the reclining lock is configured to move in a reclining lock direction parallel with the hinge axis between the locking position and the unlocking position.
6. The chair of claims 5, wherein the reclining lock is slidably coupled to the first hinge members, wherein the reclining lock is configured to slide in a direction parallel with the hinge axis.
7. The chair of claim 5 or 6, wherein the reclining lock comprises one or more reclining locking surfaces extending in radial directions relative to the hinge axis and wherein the second hinge member comprises a plurality complementary locking surfaces extending in radial directions relative to the hinge axis, wherein respective ones of the complementary locking faces are engageable with the reclining locking surfaces when the cradle frame is in the upright position and the reclined position, in order to restrict relative rotations of the first and second hinge members.
8. The chair of claim 7, wherein the second hinge member comprises a second reclining lock opening configured to receive at least part of the reclining lock when the reclining lock is in the locking position, wherein complementary locking faces are inside the second reclining lock opening.
9. The chair of claim 7 or 8, wherein the reclining lock comprises a substantially circular disc having one or more radially extending teeth or slots, wherein the relining locking surfaces are provided on the radially extending teeth or slots.
10. The chair of any of claims 3 to 9, wherein one of the first and second hingemembers comprises a substantially cylindrical interior surface and the other of the first and second hinge members comprises a substantially cylindrical outer surface configured to be at least partially received inside of the one of the first and second hinge members,wherein a central axis of the substantially cylindrical surfaces of the first and second hinge members is aligned with the hinge axis.
11. The chair of any of claims 3 to 10, wherein the reclining lock is configured to rotate together with the first hinge member.
12. The chair of any of claims 3 to 11, wherein the hinge assembly comprises a reclining lock biasing member configured to bias the reclining lock into the locking position.
13. The chair of any of claims 3 to 12, wherein the collapsing lock is configured to rotate together with the second hinge member, and wherein the collapsing lock is movable between a locked position, in which the collapsing lock is engageable with the first hinge members and / or the reclining lock when the cradle frame is in a position between the reclined position and the collapsed position to limit rotation of the first hinge member relative to the second hinge member so as to prevent the cradle frame moving to the collapsed position, and an unlocked position in which the collapsing lock does not engage the first hinge member and / or the reclining lock.
14. The chair of claim 3 to 13, wherein the collapsing lock comprises a pin slidably coupled to the second hinge member.
15. The chair of claim 14, wherein the pin is slidable in a direction with a component perpendicular to the hinge axis.
16. The chair of claim 14 or 15, wherein the first hinge member comprises a collapsing lock opening, wherein the collapsing lock is configured to project at least partially into the collapsing lock opening in the locked position.
17. The chair of claim 16, wherein the collapsing lock is configured to extend through the collapsing lock opening to engage the reclining lock in the locked position of the collapsing lock.
18. The chair of any of the preceding claims, wherein the first actuator is provided on the cradle frame.
19. The chair of any of the preceding claims, wherein the second actuator is provided on the base frame.
20. The chair of any of the preceding claims, wherein the second actuator is a foot5 pedal.
Citation Information
Patent Citations
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