CN110758534B - Bidirectional folding structure of seat and infant carrier thereof - Google Patents
Bidirectional folding structure of seat and infant carrier thereof Download PDFInfo
- Publication number
- CN110758534B CN110758534B CN201911042755.7A CN201911042755A CN110758534B CN 110758534 B CN110758534 B CN 110758534B CN 201911042755 A CN201911042755 A CN 201911042755A CN 110758534 B CN110758534 B CN 110758534B
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- joint
- seat
- foot joint
- rear foot
- front foot
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- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 26
- 210000003108 foot joint Anatomy 0.000 claims abstract description 155
- 210000002683 foot Anatomy 0.000 claims description 50
- 210000004744 fore-foot Anatomy 0.000 claims description 34
- 238000009434 installation Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 239000000969 carrier Substances 0.000 abstract description 5
- 210000000548 hind-foot Anatomy 0.000 description 11
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
- B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
- B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
- B62B7/08—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis
- B62B7/083—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis the wheel axes being moved from each other during folding
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
Abstract
The invention provides a seat bidirectional foldable structure which is suitable for infant carriers and comprises a front foot joint, a rear foot joint and a seat support joint, wherein the front foot joint and the rear foot joint are rotatably connected along a rotation axis, the seat support joint can rotate relative to the front foot joint and the rear foot joint, and the seat support joint protrudes and stretches to two sides to form a first support arm and a second support arm respectively; a first supporting part is arranged on one side of the front foot joint, which faces the front foot rest, and a second supporting part is arranged on one side of the rear foot joint, which faces the rear foot rest; when the infant carrier is in a folded state, the seat support joint can rotate forwards relative to the front foot joint and the rear foot joint to realize forward folding or rotate backwards to realize backward folding; when the infant carrier is in an open state, the first support arm is abutted to the first support part, and the second support arm is abutted to the second support part, so that the seat support joint is positioned. The invention also provides an infant carrier with the seat bidirectional foldable structure.
Description
Technical Field
The invention relates to infant articles, in particular to an infant carrier and a bidirectional seat folding structure thereof.
Background
In the current infant carriers such as infant pushchairs and the like in the market, the bearing part and the frame are usually detachable, and the bearing part can be installed on the frame in a front-back bidirectional manner. When the bearing part is installed forwards, infants in the bearing part can see the front scenery; when the bearing part is installed backwards, infants in the bearing part can see caregivers of the cart, and caregivers can also conveniently see the conditions of the infants.
Most of the existing infant carriers have a foldable function, but for the bearing parts installed in two directions, the infant carriers can be folded only when installed in the front direction, and the two-way folding cannot be realized.
Therefore, it is necessary to improve the vehicle-taking-up structure of the existing infant carrier to realize bidirectional folding of the seats of the infant carrier, and simultaneously make the folded infant carrier stand, and the vehicle-taking-up structure is small in size and convenient to carry and store.
Disclosure of Invention
The invention aims to provide a bidirectional foldable structure of a seat, so as to realize bidirectional folding of an infant carrier.
The invention also aims to provide the infant carrier which can be folded in the two directions of the seat, and meanwhile, the folded infant carrier can stand, and the infant carrier has small volume after being folded and is convenient to carry and store.
In order to achieve the above-mentioned object, the present invention provides a bidirectional foldable seat structure, which is suitable for an infant carrier, the infant carrier includes a front foot joint disposed at an upper end of a front foot rest, a rear foot joint disposed at an upper end of a rear foot rest, and a seat support joint for supporting a bearing part, the front foot joint and the rear foot joint are rotatably connected along a rotation axis, the seat support joint can rotate relative to the front foot joint and the rear foot joint, and the seat support joint protrudes to two sides to form a first support arm and a second support arm, respectively; a first supporting part is arranged on one side of the front foot joint, which faces the front foot rest, along the direction parallel to the rotation axis, and a second supporting part is arranged on one side of the rear foot joint, which faces the rear foot rest, along the direction parallel to the rotation axis; when the front foot joint and the rear foot joint rotate to the state that the infant carrier is folded, the first supporting part and the second supporting part are close, and the seat supporting joint can rotate forwards relative to the front foot joint and the rear foot joint to realize forward folding or rotate backwards to realize backward folding; when the forefoot joint and the rearfoot joint rotate to the state that the infant carrier is in an open state, the first supporting portion and the second supporting portion are far away, and the first supporting arm is abutted to the first supporting portion and the second supporting arm is abutted to the second supporting portion so as to position the seat supporting joint.
Compared with the prior art, the seat bidirectional foldable structure provided by the invention has the advantages that the seat supporting joint can rotate relative to the front foot joint and the rear foot joint, the first supporting part is arranged on one side, close to the front foot frame, of the front foot joint, the second supporting part is arranged on one side, close to the rear foot frame, of the rear foot joint, and the seat supporting joint protrudes towards two sides to form the first supporting arm and the second supporting arm respectively, so that when the infant carrier is in a folded state, the first supporting part and the second supporting part are close to each other, the seat supporting joint can rotate relative to the front foot joint and the rear foot joint, and when the seat supporting joint rotates forward relative to the front foot joint and the rear foot joint, the seat supporting joint can fold backward. According to the bidirectional foldable structure of the seat, the position of the bearing part is not limited when the infant carrier is folded, and the bearing part can be conveniently folded no matter in the forward direction or in the backward direction.
Preferably, the front foot joint is provided with a first chute, the rear foot joint is provided with a second chute, and the first chute and the second chute have an overlapping area in a plane perpendicular to the rotation axis; the seat support joint is fixedly connected with a connecting pin towards one side of the forefoot joint and one side of the rearfoot joint, and the connecting pin is inserted into the first sliding groove and the second sliding groove so as to realize rotatable connection between the seat support joint and the forefoot joint and rotatable connection between the seat support joint and the rearfoot joint. In this preferred embodiment, the overlapping area of the first sliding groove and the second sliding groove changes with the rotation of the forefoot joint and the rearfoot joint, and the connecting pin inserted into the first sliding groove and the second sliding groove locks or unlocks the relative rotation of the forefoot joint and the rearfoot joint while realizing the connection of the seat support joint with the forefoot joint and the rearfoot joint.
In an embodiment, the first chute and the second chute are both arc-shaped with the rotation axis as a center; when the front foot joint and the rear foot joint rotate to the state that the infant carrier is in an open state, the overlapping area of the first sliding groove and the second sliding groove is reduced, and the connecting pin is limited by the first sliding groove and the second sliding groove; when the front foot joint and the rear foot joint rotate to the state that the infant carrier is folded, the overlapping area of the first sliding groove and the second sliding groove is enlarged, and the connecting pin can slide in the overlapping area; in this embodiment, when the infant carrier is in a folded state, the positions of the seat support joints are changed along with the sliding of the connecting pins in the first sliding groove and the second sliding groove, so that the infant carrier is convenient to fold.
Further, the cross section of the connecting pin is in a non-perfect circle shape, and the width of a part area of the cross section of the connecting pin is larger than that of the first chute or the second chute; according to this structure, the connecting pin can not rotate relative first spout and second spout, only can when the forefoot joint with the rearfoot joint rotates to infant carrier is in the state of folding up, first spout with when the overlap area of second spout increases, can slide in the overlap area, and then make seat support joint rotate back and forth and realize folding up, and when forefoot joint and rearfoot joint rotate to infant carrier in the open state, the overlap area of first spout and second spout is reduced, the connecting pin is spacing by first spout and second spout, the connecting pin can play supplementary spacing effect to seat support joint.
In another embodiment, the first chute and the second chute are linear; the diameter of the cross section of the connecting pin is smaller than the width of the first chute and the second chute; the connecting pin can rotate in the first chute and the second chute, and the seat support joint can not be limited even if the infant carrier is in an open state.
Preferably, the first support portion and the second support portion are respectively sleeved with a shaft sleeve at a position clamped with the first support arm and the second support arm.
In order to achieve the above purpose, the invention also provides an infant carrier, which comprises a front foot rest, a rear foot rest and a bearing part, wherein the upper end of the front foot rest is provided with a front foot joint, the upper end of the rear foot rest is provided with a rear foot joint, and the front foot joint and the rear foot joint are rotatably connected along a rotation axis; the bearing part realizes forward installation or backward installation through a seat supporting joint; the infant carrier further comprises the seat bidirectional foldable structure according to any one of the above, and the seat bidirectional foldable structure is symmetrically arranged on the left side and the right side of the infant carrier.
Compared with the prior art, the infant carrier provided by the invention has the bidirectional folding structure of the seat, so that the front and back bidirectional folding of the bearing part can be realized, and the infant carrier is convenient for users to use.
Preferably, the infant carrier further comprises a handrail frame, an upper joint is arranged at the lower end of the handrail frame, the front foot joint, the rear foot joint and the upper joint are rotatably connected along a rotation axis, one of the front foot joint, the rear foot joint and the upper joint is provided with a clamping pin, and the rest two of the front foot joint, the rear foot joint and the upper joint are respectively provided with clamping grooves; when the front foot joint, the rear foot joint and the upper joint rotate to the state that the infant carrier is in an open state, the clamping pin moves into the clamping groove, so that the infant carrier is kept in the open state.
Specifically, the bearing part comprises a seat part and a backrest part, the backrest part and the seat part are rotatably connected, the seat part is provided with at least two backrest angle adjusting clamping grooves along an arc direction taking the rotation axes of the backrest part and the seat part as the center, and the backrest part is provided with an adjusting clamping pin moving towards the direction of the rotation axes of the backrest part and the seat part; the adjusting clamping pin can be selectively clamped into any backrest angle adjusting clamping groove to adjust the inclination angle of the backrest part, or withdrawn from the backrest angle adjusting clamping groove so that the backrest part can rotate relative to the seat part to fold the bearing part.
Further, the adjusting bayonet lock is constantly provided with an action trend of being clamped into the backrest angle adjusting bayonet groove; the bearing part further comprises a backrest adjusting handle, the backrest adjusting handle is arranged on one side of the backrest part far away from the seat part, and the backrest adjusting handle is connected with the adjusting bayonet lock through a rigid traction rope; and operating the backrest adjusting handle to drive the adjusting bayonet lock to withdraw from the backrest angle adjusting bayonet groove, so that the backrest part and the seat part can relatively rotate to realize folding.
Drawings
Fig. 1 is a schematic structural view of an infant carrier of the present invention.
Fig. 2 is a schematic diagram showing a split structure of a frame and a carrying portion of the infant carrier of the present invention.
Fig. 3 is an exploded view of the bi-directional foldable structure of the seat of the present invention.
Fig. 4a is a schematic view showing the open state of the forefoot and hindfoot joints.
Fig. 4b is a schematic view of the folded state of the forefoot and hindfoot joints.
Fig. 5 is a schematic view showing the state of the seat support joint when the bidirectional foldable structure of the present invention is folded forward.
Fig. 6 is a schematic view showing a state of the seat support joint when the bidirectional foldable structure of the present invention is folded backward.
Fig. 7a is a schematic view showing an opened state of the forefoot and hindfoot joints according to another embodiment.
Fig. 7b is a schematic view showing a state in which the forefoot and hindfoot joints are folded and the seat support joint is folded forward in another embodiment.
Fig. 7c is a schematic view showing a folded state of the forefoot and hindfoot joints and a folded state of the seat support joint in another embodiment.
Fig. 8 is a schematic structural view of the bearing part.
Fig. 9 is an enlarged view of a portion a in fig. 8.
Fig. 10-12 are schematic views illustrating a folding process of the infant carrier of the present invention when the seat portion is installed forward.
Fig. 13-15 are schematic diagrams illustrating a folding process when the seat portion of the infant carrier of the present invention is installed backward.
Detailed Description
In order to describe the technical content, the constructional features, the achieved objects and effects of the present invention in detail, the following description is made in connection with the embodiments and the accompanying drawings.
As shown in fig. 1, the present invention provides an infant carrier, which includes a front foot rest 100, a rear foot rest 200 and a bearing part 300, wherein a front foot joint 110 is provided at the upper end of the front foot rest 100, a rear foot joint 210 is provided at the upper end of the rear foot rest 200, and the front foot joint 110 and the rear foot joint 210 are rotatably connected along a rotation axis; the carrier 300 is mounted forward or rearward via the seat support joint 310. The infant carrier further comprises a seat bidirectional foldable structure, and the seat bidirectional foldable structures are symmetrically arranged at the left side and the right side of the infant carrier, so that the infant carrier can be conveniently folded no matter the bearing part 300 is installed forwards or backwards. The infant carrier and the bi-directional foldable structure of the seat according to the present invention will be described in more detail with reference to fig. 2 to 15.
The infant carrier provided by the invention can be a child high chair, an infant stroller and the like. The infant carrier shown in fig. 1 is illustratively an infant stroller. Specifically, as shown in fig. 1, the infant carrier includes a frame and a carrying portion 300 for carrying an infant. The frame comprises a front foot rest 100, a rear foot rest 200 and an armrest frame 400, wherein the front foot rest 100 and the rear foot rest 200 are respectively provided with a front foot joint 110 and a rear foot joint 210 at the upper ends thereof, and the armrest frame 400 is provided with an upper joint 410 at the lower end thereof. The upper ends of the front foot rest 100 and the rear foot rest 200 are rotatably connected through the front foot joint 110 and the rear foot joint 210, and the lower ends of the front foot rest 100 and the rear foot rest 200 are far away, so that the front foot rest 100 and the rear foot rest 200 are arranged in a herringbone shape; the lower end of the armrest frame 400 is rotatably coupled to the forefoot joint 110 and the rearfoot joint 210 via an upper joint 410.
Further, as shown in fig. 1-3, the forefoot joint 110, the hindfoot joint 210 and the upper joint 410 are rotatably connected along a rotation axis, one of the forefoot joint 110, the hindfoot joint 210 and the upper joint 410 is provided with a bayonet 411, and the other two of the forefoot joint 110, the hindfoot joint 210 and the upper joint 410 are respectively provided with bayonet slots 111 and 211; when the front foot joint 110, the rear foot joint 210 and the upper joint 410 are rotated to the open state of the infant carrier, the bayonet 411 moves into the bayonet slots 111, 211 so that the infant carrier is kept in the open state; when the bayonet 411 is withdrawn from the slots 111, 211, the front foot joint 110, the rear foot joint 210 and the upper joint 410 can freely rotate and approach to each other, so that the infant carrier is in a folded state. Specifically, in the present embodiment, the bayonet 411 is disposed at the upper joint 410, and the front foot joint 110 and the rear foot joint 210 are respectively provided with the bayonet slots 111 and 211; in other embodiments different from the present embodiment, the locking pin 411 may be disposed on the forefoot joint 110 or the hindfoot joint 210, so long as the forefoot joint 110, the hindfoot joint 210 and the upper joint 410 can be limited to be in an open state, or the forefoot joint 110, the hindfoot joint 210 and the upper joint 410 can be unlocked for folding the bicycle frame. Further, in the present embodiment, the locking pin 411 may move in a radial direction along the rotation axis to enter or exit the locking groove 111, 211, and in other embodiments different from the present embodiment, the locking pin 411 may also move in a direction parallel to the rotation circumferential direction to enter or exit the locking groove 111, 211.
Preferably, in order to enable the infant carrier to be folded in sequence, a unidirectional limiting structure can be further arranged between the front foot joint 110 and the upper joint 410, so that only unidirectional rotation can be achieved between the front foot rest 100 and the armrest rest 400. At this time, the armrest frame 400 may be rotated only in a direction away from the rear foot rest 200 toward the front foot rest 100, or the armrest frame 400 may be rotated only in a direction approaching the rear foot rest 200. In the embodiment, as shown in fig. 10-15, when the bayonet 411 is retracted from the slots 111, 211 to unlock the front foot joint 110, the rear foot joint 210 and the upper joint 410, the armrest frame 400 can only rotate forward and rotate in a direction away from the rear foot rest 200 and toward the front foot rest 100, thereby realizing folding of the infant carrier. Preferably, as shown in fig. 10-15, based on the relative lengths of the armrest frame 400 and the rear foot frame 200, after the infant carrier is folded, the armrest frame 400 and the rear foot frame 200 are substantially in the same plane, and can jointly support the folded infant carrier in an upright state, so as to facilitate storage of the infant carrier. It will be appreciated that, based on the above disclosure of the present invention, a one-way limiting structure is provided between the forefoot joint 110 and the upper joint 410, which is well known to those skilled in the art and will not be further described herein.
Referring to fig. 1 and 2, in the frame of the infant carrier, the front foot rest 100, the rear foot rest 200 and the armrest frame 400 are symmetrical, and the opposite inner sides of the two sets of front foot rest 100, rear foot rest 200 and armrest frame 400 are connected with the seat support joints 310; the left and right sides of the bearing part 300 are respectively provided with a clamping part 320, and the bearing part 300 and the frame are connected in a detachable manner through the clamping part 320 and the seat support joint 310. Further, the clamping portion 320 and the seat support joint 310 may be clamped forward or clamped backward, so as to achieve forward or backward installation of the bearing portion 300 relative to the frame.
The invention also provides a bidirectional foldable structure of a seat, so that the bearing part 300 can be folded along with the frame when the infant carrier is used in the front-back direction. The bidirectional seat folding structure provided by the invention is suitable for infant carriers such as high chairs for children, infant carts and the like. As shown in fig. 1 to 5, it can be understood that the infant carrier includes a front foot joint 110 disposed at an upper end of the front foot rest 100, a rear foot joint 210 disposed at an upper end of the rear foot rest 200, and a seat support joint 310 for supporting the bearing part, wherein the front foot joint 110 and the rear foot joint 210 are rotatably connected along a rotation axis, the seat support joint 310 can rotate relative to the front foot joint 110 and the rear foot joint 210, and the seat support joint 310 protrudes to two sides to form a first support part 311 and a second support arm 312, respectively; the front foot joint 110 is provided with a first support 113 in a direction parallel to the rotation axis toward one side of the front foot rest 100, and the rear foot joint 210 is provided with a second support 213 in a direction parallel to the rotation axis toward one side of the rear foot rest 200; when the front foot joint 110 and the rear foot joint 210 rotate to the infant carrier in the folded state, the first supporting portion 113 and the second supporting portion 213 are close, and the seat supporting joint 310 can rotate forward relative to the front foot joint 110 and the rear foot joint 210 to achieve forward folding or backward rotation to achieve backward folding; when the front foot joint 110 and the rear foot joint 210 are rotated to the open state of the infant carrier, the first support portion 113 and the second support portion 213 are far away, and the first support portion 311 abuts against the first support portion 113 and the second support arm 312 abuts against the second support portion 213, so as to position the seat support joint 310. As shown in connection with fig. 6-7, more specifically:
Preferably, as shown in FIGS. 3-6, the forefoot joint 110 and the rearfoot joint 210 are rotatably coupled along an axis of rotation; the forefoot joint 110 is provided with a first chute 112, and the rearfoot joint 210 is provided with a second chute 212. The first runner 112 and the second runner 212 have an overlap region in a plane perpendicular to the axis of rotation; a connection pin 313 is fixedly coupled to a side of the seat support joint 310 facing the forefoot joint 110 and the rearfoot joint 210, and the connection pin 313 is inserted into the first slide groove 112 and the second slide groove 212 so that the seat support joint 310 is connected with the forefoot joint 110 and the rearfoot joint 210. In the preferred embodiment, the overlapping area of the first runner 112 and the second runner 212 changes with the rotation of the forefoot joint 110 and the rearfoot joint 210, and the connecting pin 313 inserted into the first runner 112 and the second runner 212 locks or unlocks the relative rotation of the forefoot joint 110 and the rearfoot joint 210 while allowing the rotatable connection of the seat support joint 310 with the forefoot joint 110 and the rearfoot joint 210.
In one embodiment shown in fig. 4a and 4 b: the first chute 112 and the second chute 213 are each arc-shaped with the rotation axis as the center; when the front foot joint 110 and the rear foot joint 210 rotate to the state that the infant carrier is in an open state, the overlapping area of the first chute 112 and the second chute 213 is reduced, the connecting pin 313 is limited by the first chute 112 and the second chute 213, and the connecting pin 313 limits the front foot joint 110 and the rear foot joint 210 to be locked and limit the front foot joint and the rear foot joint to be further open, so that the infant carrier maintains a preset open state; when the front foot joint 110 and the rear foot joint 210 rotate to the infant carrier in the folded state, the overlapping area of the first chute 112 and the second chute 213 is increased, and the connecting pin 313 can slide in the overlapping area; in this embodiment, when the infant carrier is in the folded state, the position of the seat support joint 310 is changed along with the sliding of the connecting pin 313 in the first chute 112 and the second chute 213, so as to facilitate folding.
Further, as shown in fig. 4a to 6, the cross section of the connecting pin 313 is in a non-perfect circle shape, and the width of a partial area of the cross section of the connecting pin 313 is larger than the width of the first runner 112 or the second runner 212; according to this structure, the connection pin 313 is not rotatable with respect to the first and second slide grooves 112 and 212. When the front foot joint 110 and the rear foot joint 210 rotate until the infant carrier is in a folded state and the overlapping area of the first chute 112 and the second chute 212 is increased, the connecting pin 313 can slide in the overlapping area, so that the seat support joint 310 can rotate forward or backward relative to the front foot joint 110 and the rear foot joint 210 to fold; when the front foot joint 110 and the rear foot joint 210 are rotated until the infant carrier is in an open state and the overlapping area of the first chute 112 and the second chute 212 is reduced, the connecting pin 313 is limited by the first chute 112 and the second chute 212, and at the same time, the connecting pin 313 also limits further opening of the front foot joint 110 and the rear foot joint 210, and at this time, the connecting pin 313 can play an auxiliary limiting role on the seat support joint 310.
In another embodiment shown in fig. 7 a-7 c: the first chute 112 and the second chute 212 are linear, and the diameter of the cross section of the connecting pin 313 is smaller than or equal to the width of the first chute 112 and the second chute 212; the connecting pin 313 can rotate in the first chute 112 and the second chute 212 to realize the forward rotation or backward rotation of the seat support joint 310 relative to the forefoot joint 110 and the rearfoot joint 210 to realize folding. In this embodiment, the rotation of the seat support joint 310 is not limited even when the infant carrier is in an open state.
In other embodiments, the first chute 112 and the second chute 212 may be arc-shaped or have other shapes.
As shown in fig. 2, 6 and 7: a first support portion 113 is provided on a side of the forefoot joint 110 facing the forefoot frame 100 in a direction parallel to the rotational axis, and a second support portion 213 is provided on a side of the rearfoot joint 210 facing the rearfoot frame 200 in a direction parallel to the rotational axis. When the front foot joint 110 and the rear foot joint 210 are rotated to the infant carrier in the open state, the first supporting portion 113 and the second supporting portion 213 are away from each other; when the front foot joint 110 and the rear foot joint 210 are rotated to the folded state of the infant carrier, the first support portion 113 and the second support portion 213 approach each other. The seat support joint 310 is formed with a first support arm 311 and a second support arm 312 protruding to both sides, and when the front foot joint 110 and the rear foot joint 210 are rotated to the open state of the infant carrier, the first support arm 311 is abutted against the first support portion 113, and the second support arm 312 is abutted against the second support portion 213.
It will be appreciated that the first support 113 and the second support 213 are disposed in the path of rotation of the seat support joint 310 relative to the forefoot joint 110 and the rearfoot joint 210. When the infant carrier is in the open state, the front foot joint 110 and the rear foot joint 210 are open, the first support portion 113 and the second support portion 213 are far away, the first support portion 311 is abutted against the first support portion 113, and the second support arm 312 is abutted against the second support portion 213, so as to limit the rotation of the seat support joint 310 relative to the front foot joint 110 and the rear foot joint 210, and to achieve reliable limiting of the seat support joint 310. When the infant carrier is in the folded state, the front foot joint 110 and the rear foot joint 210 are folded, the first supporting portion 113 and the second supporting portion 213 are close, and the seat supporting joint 310 can rotate relative to the front foot joint 110 and the rear foot joint 210 to achieve forward folding or backward folding.
Specifically, as shown in fig. 2 and 3, in the present embodiment, the first supporting portion 113 and the second supporting portion 213 are respectively in a tubular structure, and in other embodiments different from the present embodiment, the first supporting portion 113 and the second supporting portion 213 may also be in a long rod shape. The first support arm 311 and the second support arm 312 are respectively bent in the directions of the first support portion 113 and the second support portion 213, so that when the forefoot joint 110 and the rearfoot joint 210 are rotated to the infant carrier in the open state, the first support arm 311 and the second support arm 312 correspondingly clamp the first support portion 113 and the second support portion 213. Further, the first supporting portion 113 and the second supporting portion 213 penetrate through the whole frame, and two ends of the first bearing portion 300 and the second bearing portion 300 are respectively connected to the front foot joint 110 and the rear foot joint 210 disposed at two opposite inner sides of the frame. The provision of the first support 113 and the second support 213 allows the seat support joints 310 on both sides of the frame to be reliably positioned, thereby providing reliable support for the load bearing portion 300 mounted to the frame.
Further, as shown in fig. 2 and 3, the first supporting portion 113 and the second supporting portion 213 are respectively sleeved with the shaft sleeves 113a, 213a at positions where they are clamped with the first supporting arm 311 and the second supporting arm 312. The provision of the bushings 113a, 213a may reduce friction between the seat support joint 310 and the first and second support portions 113, 213.
The infant carrier provided by the invention can be conveniently folded in the state that the bearing part 300 is installed forwards or backwards due to the bidirectional folding structure of the seat. More specifically, in the infant carrier provided by the present invention, the carrying portion 300 includes a seat portion 330 and a backrest portion 340, and the backrest portion 340 can rotate relative to the seat portion 330 to fold the carrying portion 300, so as to further reduce the volume of the infant carrier when folded.
Specifically, as shown in fig. 8 and 9, the back portion 340 and the seat portion 330 are rotatably connected, the seat portion 330 is provided with at least two back angle adjustment detents 331 in a circular arc direction centered on rotational axes of the back portion 340 and the seat portion 330, and the back portion 340 is provided with an adjustment detent 341 that moves in a direction toward the rotational axes of the back portion 340 and the seat portion 330; the adjustment latch 341 is selectively engaged into any one of the backrest angle adjustment latch grooves 331 to adjust the inclination angle of the backrest 340, or disengaged from the backrest angle adjustment latch groove 331 to rotate the backrest 340 relative to the seat 330 to fold the carrier 300.
Specifically, as shown in fig. 8, the adjustment bayonet 341 constantly has an action tendency to snap into the reclining angle adjustment bayonet 331; the carrying part 300 further comprises a backrest adjusting handle 350, the backrest adjusting handle 350 is arranged at one side of the backrest part 340 far away from the seat part 330, and the backrest adjusting handle 350 is connected with the adjusting bayonet 341 through a rigid traction rope (not shown); the backrest adjusting handle 350 is operated to drive the adjusting bayonet 341 to withdraw from the backrest angle adjusting slot 331, so that the backrest portion 340 and the seat portion 330 can rotate relatively to adjust the backrest inclination angle or fold the carrying portion 300.
Compared with the prior art, in the bidirectional foldable structure for a seat, the seat supporting joint 310 can rotate relative to the front foot joint 110 and the rear foot joint 210, the first supporting part 113 is arranged on one side of the front foot joint 110 close to the front foot rest, the second supporting part 213 is arranged on one side of the rear foot joint 210 close to the rear foot rest, and the seat supporting joint 310 protrudes towards two sides to form the first supporting arm 311 and the second supporting arm 312 respectively, so that when the infant carrier is in a folded state, the first supporting part 113 and the second supporting part 213 are close to each other, the seat supporting joint 310 can rotate relative to the front foot joint 110 and the rear foot joint 210, and when the seat supporting joint 310 rotates forwards relative to the front foot joint 110 and the rear foot joint 210, the forward folding is realized, and when the seat supporting joint 310 rotates backwards relative to the front foot joint 110 and the rear foot joint 210. According to the bidirectional foldable structure for the seat, the position of the bearing part is not limited when the infant carrier is folded, and the bearing part 300 can be conveniently folded no matter in the forward direction or in the backward direction.
The foregoing description of the preferred embodiments of the present invention is not intended to limit the scope of the claims, which follow, as defined in the claims.
Claims (6)
1. The utility model provides a two-way collapsible structure of seat, is applicable to infant carrier, infant carrier is including setting up in the front foot joint of front foot rest upper end, set up in the rear foot joint of rear foot rest upper end and be used for supporting the seat support joint of loading part, front foot joint with rear foot joint is along a rotation axis rotatable coupling, its characterized in that: the seat support joint can rotate relative to the forefoot joint and the rearfoot joint, and the seat support joint protrudes towards two sides to form a first support arm and a second support arm respectively; a first supporting part is arranged on one side of the front foot joint, which faces the front foot rest, along the direction parallel to the rotation axis, and a second supporting part is arranged on one side of the rear foot joint, which faces the rear foot rest, along the direction parallel to the rotation axis; when the front foot joint and the rear foot joint rotate to the state that the infant carrier is folded, the first supporting part and the second supporting part are close, and the seat supporting joint can rotate forwards relative to the front foot joint and the rear foot joint to realize forward folding or rotate backwards to realize backward folding; when the front foot joint and the rear foot joint rotate to the state that the infant carrier is in an open state, the first supporting part and the second supporting part are far away, and the first supporting arm is abutted against the first supporting part and the second supporting arm is abutted against the second supporting part so as to position the seat supporting joint;
the first supporting part and the second supporting part are respectively sleeved with a shaft sleeve at the clamping position of the first supporting arm and the second supporting arm;
The front foot joint is provided with a first chute, the rear foot joint is provided with a second chute, and the first chute and the second chute are provided with an overlapping area in a plane perpendicular to the rotation axis; a connecting pin is fixedly connected to one side of the seat support joint, which faces the front foot joint and the rear foot joint, and is inserted into the first sliding groove and the second sliding groove so as to realize rotatable connection between the seat support joint and the front foot joint and between the seat support joint and the rear foot joint;
The first chute and the second chute are arc-shaped with the rotation axis as the center; when the front foot joint and the rear foot joint rotate to the state that the infant carrier is in an open state, the overlapping area of the first sliding groove and the second sliding groove is reduced, and the connecting pin is limited by the first sliding groove and the second sliding groove; when the front foot joint and the rear foot joint rotate to the state that the infant carrier is folded, the overlapping area of the first sliding groove and the second sliding groove is enlarged, and the connecting pin can slide in the overlapping area.
2. The seat bi-directional collapsible structure of claim 1, wherein: the cross section of the connecting pin is in a non-perfect circle shape, and the width of a part area of the cross section of the connecting pin is larger than that of the first sliding groove or the second sliding groove.
3. The infant carrier comprises a front foot rest, a rear foot rest and a bearing part, wherein a front foot joint is arranged at the upper end of the front foot rest, a rear foot joint is arranged at the upper end of the rear foot rest, and the front foot joint and the rear foot joint are rotatably connected along a rotation axis; the bearing part realizes forward installation or backward installation through a seat supporting joint; the method is characterized in that: the infant carrier further comprises the seat bidirectional foldable structure according to any one of claims 1-2, which is symmetrically arranged on the left and right sides of the infant carrier.
4. The infant carrier according to claim 3, further comprising a handrail frame, wherein an upper joint is provided at a lower end of the handrail frame, the front foot joint, the rear foot joint and the upper joint are rotatably connected along a rotation axis, one of the front foot joint, the rear foot joint and the upper joint is provided with a bayonet, and the remaining two of the front foot joint, the rear foot joint and the upper joint are respectively provided with a bayonet; when the front foot joint, the rear foot joint and the upper joint rotate to the state that the infant carrier is in an open state, the clamping pin moves into the clamping groove, so that the infant carrier is kept in the open state.
5. The infant carrier according to claim 3, wherein the carrying portion includes a seat portion and a backrest portion, the backrest portion and the seat portion being rotatably connected, the seat portion being provided with at least two backrest angle adjustment detents in a circular arc direction centered on rotational axes of the backrest portion and the seat portion, the backrest portion being provided with an adjustment detent that moves in a direction toward the rotational axes of the backrest portion and the seat portion; the adjusting clamping pin can be selectively clamped into any backrest angle adjusting clamping groove to adjust the inclination angle of the backrest part, or withdrawn from the backrest angle adjusting clamping groove so that the backrest part can rotate relative to the seat part to fold the bearing part.
6. The infant carrier of claim 5, wherein the adjustment bayonet is constantly prone to movement into the back angle adjustment bayonet; the bearing part further comprises a backrest adjusting handle, the backrest adjusting handle is arranged on one side of the backrest part far away from the seat part, and the backrest adjusting handle is connected with the adjusting bayonet lock through a rigid traction rope; and operating the backrest adjusting handle to drive the adjusting bayonet lock to withdraw from the backrest angle adjusting bayonet groove, so that the backrest part and the seat part can relatively rotate to realize folding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911042755.7A CN110758534B (en) | 2019-10-30 | 2019-10-30 | Bidirectional folding structure of seat and infant carrier thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911042755.7A CN110758534B (en) | 2019-10-30 | 2019-10-30 | Bidirectional folding structure of seat and infant carrier thereof |
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| CN110758534A CN110758534A (en) | 2020-02-07 |
| CN110758534B true CN110758534B (en) | 2024-06-28 |
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| CN201911042755.7A Active CN110758534B (en) | 2019-10-30 | 2019-10-30 | Bidirectional folding structure of seat and infant carrier thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11897534B2 (en) | 2020-10-14 | 2024-02-13 | Graco Children's Products, Inc. | Wagon stroller, systems, and methods |
| CN112298325A (en) * | 2020-11-12 | 2021-02-02 | 山东圣得宝儿童用品股份有限公司 | Automatic folding baby carriage |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211592678U (en) * | 2019-10-30 | 2020-09-29 | 福建欧仕儿童用品股份有限公司 | Seat bidirectional folding structure and infant carrier thereof |
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| CN2841449Y (en) * | 2005-08-12 | 2006-11-29 | 蓝贯仁 | Infant's cart frame capable of making mounting appliance automatically rotate |
| CN102126511B (en) * | 2010-01-15 | 2014-05-28 | 明门香港股份有限公司 | Infant bearing device with multidirectional riding state |
| CN203427850U (en) * | 2013-07-05 | 2014-02-12 | 中山市隆成日用制品有限公司 | Release mechanism of folding joints of baby carriage |
| CN104527759B (en) * | 2014-12-19 | 2017-02-22 | 好孩子儿童用品有限公司 | Folding joint and stroller with folding joint |
| CN106347443B (en) * | 2016-09-30 | 2019-06-25 | 东莞硕仕儿童用品有限公司 | A kind of folding baby trolley |
| CN109484457A (en) * | 2018-11-22 | 2019-03-19 | 宁波妈咪宝婴童用品制造有限公司 | A kind of seat can 360 ° of rotations folding of baby vehicle frames |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211592678U (en) * | 2019-10-30 | 2020-09-29 | 福建欧仕儿童用品股份有限公司 | Seat bidirectional folding structure and infant carrier thereof |
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