WO2016070485A1 - 一种可二次折叠的儿童推车 - Google Patents

一种可二次折叠的儿童推车 Download PDF

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Publication number
WO2016070485A1
WO2016070485A1 PCT/CN2014/095422 CN2014095422W WO2016070485A1 WO 2016070485 A1 WO2016070485 A1 WO 2016070485A1 CN 2014095422 W CN2014095422 W CN 2014095422W WO 2016070485 A1 WO2016070485 A1 WO 2016070485A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotation point
bracket
lateral folding
folding rotation
front wheel
Prior art date
Application number
PCT/CN2014/095422
Other languages
English (en)
French (fr)
Inventor
马福生
Original Assignee
好孩子儿童用品有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 好孩子儿童用品有限公司 filed Critical 好孩子儿童用品有限公司
Priority to US15/522,124 priority Critical patent/US9969417B2/en
Priority to RU2017119741A priority patent/RU2658731C1/ru
Priority to CA2965844A priority patent/CA2965844C/en
Priority to EP14905647.5A priority patent/EP3216674B1/en
Priority to JP2017523972A priority patent/JP6496818B2/ja
Priority to KR1020177011898A priority patent/KR101855198B1/ko
Publication of WO2016070485A1 publication Critical patent/WO2016070485A1/zh

Links

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
    • 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
    • B62B7/086—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 becoming smaller in all three dimensions
    • 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
    • B62B7/062—Coupling unit between front wheels, rear wheels and handle
    • 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
    • B62B7/10—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable by folding down the body to the wheel carriage or by retracting projecting parts into the box-shaped body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/04—Hand-propelled vehicles or sledges being foldable or dismountable when not in use box-shaped in folded position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/12—Collapsible wheels
    • 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
    • B62B7/064—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable the handle bar being parallel to the front leg

Definitions

  • the invention belongs to the technical field of children's products, and in particular relates to a child stroller which can be folded twice.
  • Stroller products have been widely used. It is really convenient for people to push the child into the stroller to make a bend. However, when the stroller is carried or stored, it often faces the problem that the entire vehicle body is oversized. For example, the stroller under normal use cannot usually be placed in the trunk of the vehicle.
  • the present invention provides a double-foldable stroller that can be folded twice to further reduce the volume occupied in the folded state.
  • the present invention provides a second foldable stroller comprising: a side bracket assembly on both sides and at least one cross bracing between the side bracket assemblies connecting the two sides, side of each side
  • the bracket assembly includes a push rod, a front wheel bracket and a rear wheel bracket rotatably connected to each other, each cross bracket having a first lateral folding rotation point and a second lateral folding rotation point.
  • the push rod, the front wheel bracket and the rear wheel bracket on the same side are rotated to the close state, and the side bracket assemblies on the two sides in the first folded state may be
  • the first lateral folding rotation point and the second lateral folding rotation point are respectively rotated around the first lateral folding rotation point to be folded toward each other.
  • the first lateral fold rotation point of the cross brace is located at one end of the cross brace and the second lateral fold rotation point is located between the ends of the cross brace.
  • the side bracket assemblies of the two sides in the first folded state are respectively folded in a second folded state after the first lateral folding rotation point and the second lateral folding rotation point are folded, respectively.
  • the second folded state one side of the side bracket assembly is pivotally folded around the first lateral folding rotation point to be in contact with the cross bracket, and the other side side bracket assembly is rotated and folded around the second lateral folding rotation point. Contact with the side bracket assembly on the one side.
  • the first lateral fold rotation point of the cross brace is located at one end of the cross brace and the second lateral fold rotation point is located at the other end of the cross brace.
  • the side bracket assemblies on the two sides in the first folded state are respectively rotated about the first lateral folding rotation point and the second lateral folding rotation point to be folded in a second folded state.
  • one side of the side bracket assembly is pivotally folded around the first lateral folding rotation point to be in contact with the cross bracket, and the other side side bracket assembly is rotated around the second lateral folding point. Rotating and folding into contact with the cross braces.
  • first lateral folding rotation point and the second lateral folding rotation point of the cross brace are both located between the ends of the cross brace.
  • first lateral folding rotation point and the second lateral folding rotation point are not equal in distance from the adjacent end, and the lateral folding rotation point farther from the adjacent end is to the corresponding adjacent end.
  • the angle between the cross struts and the cross struts between the first lateral folding rotation point and the second lateral folding rotation point is not more than 90°.
  • the number of cross braces between the side bracket assemblies connecting the two sides is at least two, and in the first folded state, the first lateral folding rotation points of all the cross braces are perpendicular to the The direction in which the transverse length extends is collinear, and the second lateral folding rotation point of all the transverse supports is collinear in a direction perpendicular to the direction in which the transverse length extends.
  • One of the cross braces is connected between the front wheel brackets on the two sides;
  • One of the cross braces is connected between the rear wheel brackets on the two sides;
  • One of the cross braces is also connected between the push rods on the two sides.
  • the side brackets on each side further include a front wheel bracket connector rotatably coupled to a front end of the front wheel bracket, between the other ends of the front wheel bracket connectors on both sides There is one of the cross braces connected.
  • the front wheel bracket connector in the first folded state, is flipped forward relative to the front wheel bracket.
  • the stroller further includes a rear wheel assembly rotatably coupled to the rear wheel bracket, wherein the front wheel assembly and the rear wheel assembly are oppositely folded and folded together in the first folded state Between the front wheel bracket and the rear wheel bracket.
  • the push rod is a retractable push rod.
  • the push rod, the front wheel bracket and the rear wheel bracket of each side are connected by a frame connector, and at least one of the push rod, the front wheel bracket and the rear wheel bracket on each side Two rotatably connected to the frame connector.
  • the stroller provided in the embodiment of the present application can not only realize the first folding, but also realize the second folding of the two side bracket components, thereby further reducing the volume occupied by the entire cart in these states. .
  • FIG. 1 is a schematic diagram of an angle of use of a stroller according to an embodiment of the present invention
  • FIG. 2 is a schematic view of another perspective of the stroller of Figure 1;
  • FIG. 3 is a schematic view showing the rotation direction of each structure of the stroller in the first folding process in the embodiment of the present invention
  • Figure 4 is a schematic view showing the stroller in the first folded state in the embodiment of the present invention.
  • Figure 5 is a schematic view showing the rotation direction of each structure of the stroller in the second folded state in the embodiment of the present invention.
  • Figure 6 is a schematic view showing the stroller in the second folded state in the embodiment of the present invention.
  • Figure 7 is a schematic illustration of another perspective of the stroller of Figure 6.
  • FIG. 1 is a schematic view showing an angle of use of a stroller capable of achieving double folding according to an embodiment of the present invention
  • FIG. 2 is a schematic view showing another angle of the stroller.
  • the stroller is in an unfolded state in use, and the entire stroller can be pushed by the user.
  • the stroller includes side bracket assemblies on both sides and at least one cross bracing that connects the side bracket assemblies.
  • the side bracket assemblies on both sides of the stroller include front wheel brackets (27, 28), rear wheel brackets (26, 20), and push rods that are rotatably coupled to each other.
  • the front wheel bracket 27 and the rear wheel bracket 26 are on the same side
  • the front wheel bracket 28 and the rear wheel bracket 20 are on the same side.
  • the length of the push rod is a push rod, such as the pull rod shown in Figures 1 and 2, in particular, the push rod on one side is pushed by a pull.
  • the rods are composed of rods (11, 12, 13, 14), the push rods on the other side are composed of pull-type push rods (8, 7, 6, 5), and the pull-type push rods 11, 12, 13 can be retracted into the aperture In the larger pull-type push rod 14, the pull-type push rods 8, 7, 6 can be locked into the pull-out type push rod 5 having a larger aperture.
  • Designing a similar length of retractable pusher in Figure 1 and Figure 2 will further help to further reduce the volume of space occupied during folding of the entire stroller.
  • the cross braces are set to three in total, which are respectively arranged between the front wheel brackets on both sides, between the rear wheel brackets on both sides and between the push rods on both sides.
  • a rear wheel bracket cross bracing 23 is connected between the rear wheel bracket 26 and the rear wheel bracket 25, and a lateral pusher 910 (also equivalent to a cross bracing) is disposed between the pull-type push rods 8 and 11.
  • a front wheel bracket connector can be rotatably connected to the front end of each side of the front wheel bracket, as shown in FIG. Specifically, a rotatable connection is achieved by pivot points C1, C2, respectively, and then a cross brace 317 is provided between the other ends of the front wheel bracket connectors 181, 182. In the unfolded state, the front wheel bracket connectors 181, 182 are brought together with the respective front wheel brackets, which can be used as a child's foot and enhance the strength of the frame.
  • the front wheel bracket connectors 181, 182 can be flipped forward relative to the respective front wheel brackets 27 for the purpose of extending the length of the front wheel brackets.
  • the cross brackets 317 can be brought closer to the rear wheel bracket cross braces 23 and the push handles 910.
  • cross braces between the front wheel bracket connectors, between the rear wheel brackets and between the push rods is only a special case, and the main function of the cross braces is to carry the side bracket assemblies on both sides. Combines with the basic frame that forms the stroller and achieves a certain mechanical strength.
  • the cross braces may be provided as only one, for example between the front wheel bracket connectors or between the rear wheel brackets, ie only the front wheel bracket cross braces 317 or the rear wheel bracket cross members.
  • Support 23 the push rods on both sides can be connected without each other, and the top ends of the push rods on both sides are designed to push hands.
  • the cross braces may also be set to two, for example, between the front wheel brackets and the rear wheel brackets, that is, the front wheel bracket cross braces 317 and the rear wheel brackets.
  • Cross bracing 23 It should be noted that, in FIGS. 1 and 2, the cross bracing between the push rods on both sides (ie, the lateral pusher 910 in FIGS. 1 and 2) is merely a special case at the top of the push rod.
  • the two ends of the cross brace can also be connected at other positions of the push rod, except that the cross brace only serves as a support at this time, and in the implementation shown in FIGS. 1 and 2, the cross brace can also At the same time act as a pusher.
  • the push rod, the front wheel bracket and the rear wheel bracket are rotatably connected by the frame connectors on each side.
  • the push rod, the front wheel bracket 28 and the rear wheel bracket 20, which are composed of the pull-type push rods (11, 12, 13, 14), are mutually rotatable by the frame connecting member 15, and are pushed by the pull-type
  • the push rods of the rods (8, 7, 6, 5), the front wheel bracket 27 and the rear wheel bracket 26 are rotatable relative to each other by the frame link 4.
  • each frame connecting member has two rotating centers, and the push rod and the front wheel bracket can respectively be rotatably connected to the frame connecting member by the two rotating centers.
  • the rear wheel bracket is fixedly connected with the frame connecting member.
  • the pull-type push rod 14 and the front wheel bracket 28 are rotatably connected to the frame connecting member 15 through the rotating points A2 and B2, respectively, and the pull-type push rod 5 is connected.
  • the front wheel bracket 27 is rotatably connected to the frame connecting member 4 through the rotating points A1 and B1, respectively.
  • the rear wheel bracket 20 is fixedly coupled to the frame connecting member 15, and the rear wheel bracket 26 is fixedly coupled to the frame connecting member 4.
  • the front wheel bracket and the frame connector may be fixedly connected, and the rear wheel bracket and the push rod and the frame connector may be rotatably connected, so that the front wheel bracket and the rear can also be realized.
  • the relative rotation between the wheel bracket and the push rod is relatively rotatable.
  • the push rod can be fixedly connected to the frame connecting member, and the front wheel bracket and the rear wheel bracket are rotatably connected with the frame connecting member.
  • the stroller further includes a front wheel assembly and a rear wheel assembly.
  • the front wheel assembly disposed on one side includes a front wheel 1 and a front wheel link 2 that are connected to each other, and the front wheel assembly disposed on the other side includes a front wheel 19 and a front wheel link 16 that are connected to each other.
  • the front wheel connecting member 2 and the front wheel bracket connecting member 181 are rotatably connected by a point C1
  • the front wheel connecting member 16 and the front wheel bracket connecting member 182 are rotatably connected by a C2 point.
  • the rear wheel assembly disposed on one side includes a rear wheel 22 and a rear wheel link 21 that are rotatably coupled to each other, and the rear wheel assembly disposed on the other side includes a rear wheel 24 and a rear wheel link 25 that are rotatably coupled to each other.
  • the rear wheel link 21 is rotatably coupled to the rear wheel bracket 20, in particular by a pivot point D1; the rear wheel link 25 and the rear wheel bracket 26 are rotatably connected, in particular by a pivot point D2 achieves a rotatable connection.
  • the stroller in this embodiment can achieve a double folding, thereby achieving a maximum reduction in the occupied volume.
  • the pusher, the front wheel bracket and the rear wheel bracket on the same side are rotated to the close state.
  • the pull-type push rods located on both sides are first retracted to the minimum length after being unlocked, as shown in the pull-type push rod in FIG.
  • the retractable push rod 14 having a larger aperture is retracted in the direction of the arrow 101.
  • the push rod rotates toward the rear wheel bracket 20 in the direction of the arrow 102 around the rotation point A2, and is close to the rear wheel bracket 20.
  • the push rod on the other side not marked in FIG. 3 also rotates around the corresponding rotation point.
  • the rear wheel bracket on the other side rotates and is brought together.
  • the rear wheel assembly constituted by the rear wheel 22 and the rear wheel link 21 is rotated toward the rear wheel bracket 20 in the direction of the arrow 103 around the pivot point D1, and is joined to the rear wheel bracket 20.
  • the front wheel bracket connectors 181, 182 are then rotated forward in the direction of the arrow 104 about the pivot points C1, C2, respectively, to achieve a state of being substantially collinear with the front wheel brackets 27, 28.
  • the front wheel bracket 28 integrally rotates toward the rear wheel bracket 20 in the direction of the arrow 105 about the pivot point B2.
  • the front wheel assembly and the rear wheel assembly are folded in opposite directions to be folded between the front wheel bracket and the rear wheel bracket, forming a first folded state as shown in FIG.
  • each cross brace has a first lateral folding rotation point and a second lateral folding rotation point to be already in a folded state by the first lateral folding rotation point and the second lateral folding rotation point.
  • the side bracket assemblies on both sides are rotated for the purpose of the second folding.
  • the front wheel bracket cross member 317 is connected between the front wheel bracket connecting member 181 and the front wheel bracket connecting member 182.
  • a rear wheel bracket cross member 23 is connected between the rear wheel bracket 26 and the rear wheel bracket 25, and a lateral pusher 910 is disposed between the pull rod pushers 8 and 11.
  • the front wheel bracket cross braces 317, the rear wheel bracket cross braces 23, and the lateral push bar 910 are arranged side by side.
  • the first lateral folding rotation point of all the cross braces is located at one end of the cross brace, and the second lateral folding rotation point is at a first distance from the other end of the cross brace.
  • the first lateral folding rotation point G2 of the lateral pusher 910 is located at one end of the lateral pusher 910, and the second lateral folding rotation point G1 is located on the lateral pusher 910 and away from the lateral push handle.
  • the lateral pusher 910 is divided into a first segment push handle 10 and a second segment push handle 9.
  • the first lateral folding rotation point E2 of the front wheel bracket cross brace 317 is located at one end of the front wheel bracket cross brace 317, and the second lateral folding rotation point E1 is located on the front wheel bracket cross brace 317 and is further away from the front wheel bracket cross brace 317 At a distance from one end, the front wheel bracket cross braces 317 are thus divided into a first segment front cross bracing 17 and a second segment front cross bracing 3.
  • a first lateral folding rotation point F1 of the rear wheel bracket cross brace 23 is located at one end of the rear wheel bracket cross brace 23, and a second lateral folding rotation point F2 is located on the rear wheel bracket cross brace 23 and exemplified by the rear wheel bracket cross brace 23 The other end is at a distance from one end, whereby the rear wheel bracket cross braces 23 are divided into a first segment rear cross bracing 231 and a second segment rear cross bracing 232.
  • the first lateral folding rotation points of all the cross braces are collinear or substantially collinear in a direction perpendicular to the extending direction of the cross brace, all the transverse braces
  • the second lateral folding rotation point is collinear or substantially collinear in a direction perpendicular to the direction in which the cross member extends.
  • Fig. 5 is a view showing the action direction of each portion when the stroller in the embodiment is changed from the first folded state to the second folded state.
  • the side bracket assemblies on both sides are respectively rotated in the directions of the arrow 106 and the arrow 107 in FIG. 5, wherein the rotation point of the side bracket assembly on the side rotating in the direction of the arrow 106 is The ends of the cross braces, in this case the first lateral folding rotation points of the respective cross braces; the rotation points of the side bracket assemblies rotating on one side in the direction of the arrow 107 are the second lateral folding rotations of the respective cross braces point.
  • Figure 6 is a schematic view showing the stroller in the second folded state in the embodiment
  • Figure 7 is a view showing another view of the stroller in the second folded state, which can be seen from Figures 6 and 7.
  • the push rod, the front wheel bracket and the rear wheel bracket located on one side of the first lateral folding rotation point are folded and folded to be close to the cross brace, and the push rod, the front wheel bracket and the rear side on the side of the second lateral folding rotation point
  • the wheel bracket is rotationally folded to be close to the push rod, the front wheel bracket and the rear wheel bracket on the side of the first lateral folding rotation point.
  • the side bracket assembly on the side of the first lateral folding rotation point is rotated to be folded down, and the side bracket assembly on the side of the second lateral folding rotation point is rotated to the side on the side of the first lateral folding rotation point.
  • a three-layer folded structure is finally formed.
  • the first lateral folding rotation point and the second lateral folding rotation point of the cross brace may be respectively located at both ends of the cross brace, so that they are on both sides of the first folded state.
  • the side bracket assembly is rotated about the first lateral folding rotation point and the second lateral folding rotation point, respectively, to effect the opposing folding.
  • the side bracket assemblies on both sides of the present invention are respectively rotated and folded around the first lateral folding rotation point and the second lateral folding rotation point, respectively, and are in contact with the transverse support, thereby forming a two-layer folding. structure.
  • first lateral folding rotation point and the second lateral folding rotation point of the cross brace may both be located between the ends of the cross brace, that is, both at the non-end points.
  • the side bracket assemblies on both sides in the first folded state can be folded toward each other after being rotated about the first lateral folding rotation point and the second lateral folding rotation point, respectively.
  • first lateral folding rotation point and the second lateral folding rotation point may be the same distance from the respective adjacent ends, and the length of the cross braces is sufficiently long, so that the side brackets are folded toward each other to form a two-layer folding. structure.
  • the distance between the first lateral folding rotation point and the adjacent transverse support end in the present invention and the second lateral folding rotation point and the adjacent transverse support end may be set.
  • the distance between the two sides is not equal, and the side bracket assemblies on both sides are respectively folded around the first lateral folding rotation point and the second lateral folding rotation point, and are folded into a three-layer folded state, and the side bracket assemblies on both sides are mutually in the up and down direction.
  • the angle is not more than 90°.
  • the stroller provided in the embodiment of the present application can not only realize the first folding, but also realize the second folding of the two side bracket components, thereby further reducing the volume occupied by the entire cart in these states. .

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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)
  • Toys (AREA)

Abstract

一种可二次折叠的儿童推车，包括：位于两侧的侧支架组件和连接所述两侧的侧支架组件之间的至少一个横撑，每侧的侧支架组件包括相互可转动连接的推杆、前轮支架(27, 28)和后轮支架(26, 20)，在第一折叠状态下，所述推杆、所述前轮支架和所述后轮支架转动到并拢状态；每个横撑具有第一横向折叠转动点和第二横向折叠转动点。该儿童推车不仅能够实现第一次折叠，还能够实现两个侧支架组件的第二次折叠，进而进一步减小整个推车在这些状态下所占据的体积。

Description

一种可二次折叠的儿童推车
技术领域
本发明属于儿童用品技术领域，尤其涉及一种可二次折叠的儿童推车。
背景技术
儿童推车产品已经得到广泛的应用。人们在将儿童放入儿童推车中推出去进行遛弯，确实方便了许多。但是在儿童推车携带或存放时，常常面临整个车体占据体积过大的问题，如正常使用状态下的儿童推车通常都无法放入车辆的后备箱内。
为了解决这一问题，现在的很多儿童推车都带有折叠的功能，但是这些儿童推车至多只能实现一次折叠，而实际中的儿童推车仅仅在一个方向进行折叠仍然会面临占据空间过长等问题，所以仍无法充分满足用户对于体积的要求。
发明内容
有鉴于此，本发明提供一种可二次折叠的儿童推车，能够实现两次折叠，进一步缩小折叠状态下所占据的体积。
为实现上述目的，本发明提供一种可二次折叠的儿童推车，包括：位于两侧的侧支架组件和连接所述两侧的侧支架组件之间的至少一个横撑，每侧的侧支架组件包括相互可转动连接的推杆、前轮支架和后轮支架，每个横撑具有第一横向折叠转动点和第二横向折叠转动点，
当侧支架组件在第一折叠状态下，同一侧的所述推杆、所述前轮支架和所述后轮支架转动到并拢状态，处于第一折叠状态的所述两侧的侧支架组件可分别绕所述第一横向折叠转动点和第二横向折叠转动点转动而相向折叠靠拢。
在一个优选实施例中，所述横撑的第一横向折叠转动点位于所述横撑的一端处，第二横向折叠转动点位于所述横撑的两端之间。
在一个优选实施例中，处于第一折叠状态的所述两侧的侧支架组件分别绕所述第一横向折叠转动点和第二横向折叠转动点相向折叠后呈第二折叠状态，在所述第二折叠状态下，其中一侧的侧支架组件绕所述第一横向折叠转动点转动折叠到与所述横撑接触，另一侧的侧支架组件绕所述第二横向折叠转动点转动折叠到与所述一侧的侧支架组件相接触。
在一个优选实施例中，所述横撑的第一横向折叠转动点位于所述横撑的一端处，第二横向折叠转动点位于所述横撑的另一端处。
在一个优选实施例中，处于第一折叠状态的所述两侧的侧支架组件分别绕所述第一横向折叠转动点和第二横向折叠转动点转动而相向折叠后呈第二折叠状态，在所述第二折叠状态下，其中一侧的侧支架组件绕所述第一横向折叠转动点转动折叠到与所述横撑接触，另一侧的侧支架组件绕所述第二横向折叠转动点转动折叠到与所述横撑接触。
在一个优选实施例中，所述横撑的第一横向折叠转动点和所述第二横向折叠转动点均位于所述横撑的两端之间。
在一个优选实施例中，所述第一横向折叠转动点和所述第二横向折叠转动点距离相邻端的距离不相等，且距离相邻端较远的横向折叠转动点到对应的相邻端的横撑段与所述第一横向折叠转动点和所述第二横向折叠转动点之间的横撑段之间的夹角不大于90°。
在一个优选实施例中，连接所述两侧的侧支架组件之间的横撑的数量为至少2个，在第一折叠状态下，所有横撑的第一横向折叠转动点在垂直于所述横撑长度延伸方向的方向上共线，所有横撑的第二横向折叠转动点在垂直于所述横撑长度延伸方向的方向上共线。
在一个优选实施例中，
所述两侧的前轮支架之间连接有一个所述横撑；
和/或；
所述两侧的后轮支架之间连接有一个所述横撑；
和/或；
所述两侧的推杆之间还连接有一个所述横撑。
在一个优选实施例中，每侧的所述侧支架还包括一端与所述前轮支架的前端可转动连接的前轮支架连接件，两侧的所述前轮支架连接件的另一端之间连接有一个所述横撑。
在一个优选实施例中，在第一折叠状态下，所述前轮支架连接件相对所述前轮支架向前翻转。
在一个优选实施例中，儿童推车还包括与所述后轮支架可转动连接的后轮组件，在第一折叠状态下，所述前轮组件和后轮组件相向转动折叠到并拢的所述前轮支架和后轮支架之间。
在一个优选实施例中，所述推杆为可伸缩式推杆。
在一个优选实施例中，所述每一侧的推杆、前轮支架和后轮支架通过车架连接件连接，且所述每一侧的推杆、前轮支架和后轮支架中的至少两个与所述车架连接件可转动的连接。
由此，本申请实施例中提供的儿童推车不仅能够实现第一次折叠，还能够实现两个侧支架组件的第二次折叠，进而进一步减小整个推车在这些状态下所占据的体积。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的儿童推车的使用状态的一个角度的示意图；
图2是图1中的儿童推车的另一个视角的示意图；
图3是本发明实施例中的儿童推车在第一次折叠过程中的各个结构的转动方向示意图；
图4是本发明实施例中的儿童推车处于第一折叠状态的示意图；
图5是本发明实施例中的儿童推车在第二次折叠状态中的各个结构的转动方向示意图；
图6是本发明实施例中的儿童推车处于第二折叠状态的示意图；
图7是图6中的儿童推车的另一个视角的示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
图1示出了本发明一个实施例提供的可实现二次折叠的儿童推车的使用状态的一个角度的示意图，图2示出了该儿童推车的另一个角度的示意图。该儿童推车在使用状态下处于展开状态，整个儿童推车可以被用户推动使用。
该儿童推车包括位于两侧的侧支架组件和连接两侧侧支架组件的至少一个横撑。如图1和图2所示，该儿童推车的两侧的侧支架组件包括相互可转动连接的前轮支架（27，28）、后轮支架（26，20）以及推杆。其中，前轮支架27与后轮支架26位于同一侧，前轮支架28与后轮支架20位于同一侧。在图1和图2中，特别地推杆采用的长度可伸缩式推杆，例如图1和图2中示出的抽拉式推杆，具体地，一侧的推杆由抽拉式推杆（11，12，13，14）组成，另一侧的推杆由抽拉式推杆（8，7，6，5）组成，而抽拉式推杆11、12、13可以缩入孔径较大的抽拉式推杆14中，抽拉式推杆8、7、6可锁入孔径较大的抽拉式推杆5中。将推杆设计图1和图2中类似的长度可伸缩式推杆将更加有助于将整个儿童车进行折叠的过程中进一步减小占据的空间体积。
在图1和图2中，横撑总共设置为三个，分别设置在两侧的前轮支架之间、两侧的后轮支架之间和两侧的推杆之间。
具体地，在后轮支架26和后轮支架25之间连接有后轮支架横撑23，在抽拉式推杆8和11之间设置横向推把910（也相当于一个横撑）。
鉴于通常的儿童推车在设计时，前轮支架的长度较小，为此，可在每侧的前轮支架前端可转动的连接一前轮支架连接件，如图1所示的181、182，具体地分别通过转动点C1、C2实现可转动的连接，然后在前轮支架连接件181、182的另一端之间设置横撑317。在非折叠状态下，该前轮支架连接件181、182与各自的前轮支架靠拢，可用用作儿童脚踏，并且加强车架强度。在第一次折叠时，该前轮支架连接件181、182可相对各自的前轮支架27向前翻转，以起到延长前轮支架长度的目的。另外，在本发明中，当前轮支架连接件181、182相对各自的前轮支架向前翻转后，横撑317可以与后轮支架横撑23、推把910相互靠拢。
本领域技术人员应该清楚，在前轮支架连接件之间、后轮支架之间和推杆之间均设置横撑仅仅是一个特例，横撑的最主要作用在于将两侧的侧支架组件进行结合形成儿童推车的基本框架，且达到一定的机械强度。在一个可替换的实施例中，上述横撑可以仅仅设置为1个，例如可以设置在前轮支架连接件之间或后轮支架之间，即仅有前轮支架横撑317或后轮支架横撑23，两侧的推杆之间可以相互无连接，两侧推杆的顶端设计为推手即可。此外在一个可替换的实施例中，上述横撑还可以设置为2个，例如可以设置在前轮支架之间和后轮支架之间，即既有前轮支架横撑317又有后轮支架横撑23。需要说明的是，在图1和图2中，两侧推杆之间的横撑（即图1和图2中的横向推把910）设置在推杆的顶端仅仅是一个特例，实际中，该横撑的两端也可连接在推杆的其他位置处，只是此时该横撑仅起到支撑的作用，而在图1和图2中示出的实现方式下，该横撑还可以同时充当推把。
在图1和图2中，推杆、前轮支架和后轮支架通过各侧的车架连接件实现可转动连接。具体地，由抽拉式推杆（11，12，13，14）组成的推杆、前轮支架28和后轮支架20通过车架连接件15实现相互之间可转动，由抽拉式推杆（8，7，6，5）组成的推杆、前轮支架27和后轮支架26通过车架连接件4实现相互之间可转动。
作为一个特例，如图1和图2所示，每个车架连接件上具有2个转动中心，推杆和前轮支架可以分别依靠上述2个转动中心与车架连接件可转动的连接，而后轮支架与车架连接件固定连接，具体地，抽拉式推杆14和前轮支架28分别通过转动点A2和B2与车架连接件15实现可转动地连接，抽拉式推杆5和前轮支架27分别通过转动点A1和B1与车架连接件4实现可转动地连接，后轮支架20与车架连接件15固定连接，后轮支架26与车架连接件4固定连接。需要说明的是，在其他实施例中，还可以替换为前轮支架与车架连接件固定连接，而后轮支架和推杆与车架连接件可转动连接，这样也可以实现前轮支架、后轮支架和推杆之间的相对可转动。当然在其他实施例中还可以替换为推杆与车架连接件固定连接，前轮支架和后轮支架与车架连接件可转动连接。
此外，该儿童推车还包括前轮组件和后轮组件。
其中设置在一侧的前轮组件包括相互连接的前轮1和前轮连接件2，设置在另一侧的前轮组件包括相互连接的前轮19和前轮连接件16。其中，前轮连接件2与前轮支架连接件181通过C1点可转动的连接，前轮连接件16与前轮支架连接件182通过C2点可转动的连接。
设置在一侧的后轮组件包括相互可转动连接的后轮22和后轮连接件21，设置在另一侧的后轮组件包括相互可转动连接的后轮24和后轮连接件25。另外后轮连接件21可转动地与后轮支架20相连接，具体地通过转动点D1实现可转动的连接；后轮连接件25和后轮支架26之间可转动连接，具体地通过转动点D2实现可转动的连接。
本实施例中的儿童推车可实现二次折叠，进而实现最大限度的缩小所占据的体积。在第一次折叠状态下，同一侧的推杆、前轮支架和后轮支架转动到并拢状态。参见图3示出的第一次折叠过程中的各个结构的转动方向示意图，首先位于两侧的抽拉式推杆经解锁后均缩至最小长度，如图3中的抽拉式推杆已经沿着箭头101方向缩入孔径较大的抽拉式推杆14中。然后推杆绕着转动点A2沿着箭头102的方向向后轮支架20转动，与后轮支架20并拢，当然图3中未标出的另一侧的推杆也绕着相应的转动点向该另一侧的后轮支架转动，并实现并拢。接着，由后轮22和后轮连接件21构成的后轮组件绕着转动点D1沿着箭头103的方向向后轮支架20转动，与后轮支架20并拢。然后由前轮支架连接件181、182分别绕着转动点C1、C2沿着箭头104的方向向前转动，以达到与前轮支架27、28大致共线的状态。最后，前轮支架28整体绕着转动点B2沿着箭头105的方向向后轮支架20转动。由此，前轮组件和后轮组件相向转动折叠到了并拢的前轮支架和后轮支架之间，形成如图4所示的第一折叠状态的形态。
为了实现接下来的第二次折叠，每个横撑均具有第一横向折叠转动点和第二横向折叠转动点，以通过第一横向折叠转动点和第二横向折叠转动点将已经处于折叠状态的两侧的侧支架组件进行转动达到第二次折叠的目的。
仍以图1和图2中的儿童推车的具体实施例为例进行说明，在本例中，前轮支架连接件181和前轮支架连接件182之间连接有前轮支架横撑317，在后轮支架26和后轮支架25之间连接有后轮支架横撑23，在抽拉式推杆8和11之间设置横向推把910。在该儿童推车折叠到如图4所示的第一折叠状态时，前轮支架横撑317、后轮支架横撑23和横向推把910呈并排设置。作为一个特例，在本例中，所有横撑的第一横向折叠转动点位于横撑的一端处，第二横向折叠转动点距离该横撑的另一端为第一距离。参见图1、图2和图4，横向推把910的第一横向折叠转动点G2位于横向推把910的一端，第二横向折叠转动点G1位于该横向推把910上并距离该横向推把910的另一端的一段距离处，由此横向推把910被分为第一段推把10和第二段推把9。前轮支架横撑317的第一横向折叠转动点E2位于前轮支架横撑317的一端，第二横向折叠转动点E1位于前轮支架横撑317上并距离该前轮支架横撑317的另一端的一段距离处，由此前轮支架横撑317被分为第一段前横撑17和第二段前横撑3。后轮支架横撑23的第一横向折叠转动点F1位于该后轮支架横撑23的一端，第二横向折叠转动点F2位于后轮支架横撑23上并举例该后轮支架横撑23的另一端的一端距离处，由此该后轮支架横撑23被分为第一段后横撑231和第二段后横撑232。
当横撑的数量为至少2个时，在第一折叠状态下，所有横撑的第一横向折叠转动点在垂直于所述横撑延伸方向的方向上共线或大致共线，所有横撑的第二横向折叠转动点在垂直于横撑延伸方向的方向上共线或大致共线。以图4中示出的第一折叠状态示意图为例，横向推把910的第二横向折叠转动点G1、前轮支架横撑317的第二横向折叠转动点E1和后轮支架横撑23的第二横向折叠转动点F2共线。
图5示出了本实施例中的儿童推车由第一折叠状态向第二折叠状态变化时各部分的动作方向示意图。如图5所示，两侧的侧支架组件分别沿着图5中的箭头106和箭头107的方向进行转动，其中，沿着箭头106方向转动的一侧的侧支架组件所转动的转动点在横撑的端部，在本例中为各个横撑的第一横向折叠转动点；沿着箭头107方向转动的一侧的侧支架组件所转动的转动点为各个横撑的第二横向折叠转动点。
图6示出了本实施例中的儿童推车在第二折叠状态下的示意图，图7示出了儿童推车在第二折叠状态下的另一个视角的示意图，由图6和图7可以看出，位于第一横向折叠转动点一侧的推杆、前轮支架和后轮支架转动折叠到与横撑靠拢，而位于第二横向折叠转动点一侧的推杆、前轮支架和后轮支架转动折叠到与位于第一横向折叠转动点一侧的推杆、前轮支架和后轮支架相靠拢。即实现位于第一横向折叠转动点一侧的侧支架组件被转动到折叠到下方，而位于第二横向折叠转动点一侧的侧支架组件被转动到位于第一横向折叠转动点一侧的侧支架组件的上方，最终形成了一个三层的折叠结构。
需要说明的是，在本发明的其他实施例中，横撑的第一横向折叠转动点和第二横向折叠转动点可分别位于横撑的两端处，这样处于第一折叠状态的两侧的侧支架组件在分别绕所述第一横向折叠转动点和第二横向折叠转动点转动以实现相向折叠。为使折叠后的体积尽量小，本发明中两侧的侧支架组件分别绕第一横向折叠转动点和第二横向折叠转动点转动折叠后，均与横撑接触，即形成一个两层的折叠结构。
在本发明的另一实施例中，横撑的第一横向折叠转动点和第二横向折叠转动点可均位于横撑的两端之间，即均位于非端点处。处于第一折叠状态的两侧的侧支架组件在分别绕所述第一横向折叠转动点和第二横向折叠转动点转动后可实现相向折叠。在该实施例中，第一横向折叠转动点和第二横向折叠转动点距离各自相邻端的距离可以相同，且横撑的长度足够长，使得两侧侧支架相向折叠后形成一个两层的折叠结构。当然，为使折叠后的体积尽量小，可设置本发明中第一横向折叠转动点与相邻的横撑端部之间的距离与第二横向折叠转动点与相邻的横撑端部之间的距离不相等，两侧的侧支架组件分别绕所述第一横向折叠转动点和第二横向折叠转动点转动后折叠呈三层的折叠状态，两侧的侧支架组件在上下方向上互相接触，且距离相邻端较远的横向折叠转动点到对应的相邻端的横撑段与所述第一横向折叠转动点和所述第二横向折叠转动点之间的横撑段之间的夹角不大于90°。
由此，本申请实施例中提供的儿童推车不仅能够实现第一次折叠，还能够实现两个侧支架组件的第二次折叠，进而进一步减小整个推车在这些状态下所占据的体积。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (14)

1、一种可二次折叠的儿童推车，其特征在于，包括：位于两侧的侧支架组件和连接所述两侧的侧支架组件之间的至少一个横撑，每侧的侧支架组件包括相互可转动地连接的推杆、前轮支架和后轮支架，每个横撑具有第一横向折叠转动点和第二横向折叠转动点，
当侧支架组件在第一折叠状态下，同一侧的所述推杆、所述前轮支架和所述后轮支架转动到并拢状态，处于第一折叠状态的所述两侧的侧支架组件可分别绕所述第一横向折叠转动点和第二横向折叠转动点转动而相向折叠靠拢。
2、根据权利要求1所述的儿童推车，其特征在于，所述横撑的第一横向折叠转动点位于所述横撑的一端处，第二横向折叠转动点位于所述横撑的两端之间。
3、根据权利要求2所述的儿童推车，其特征在于，处于第一折叠状态的所述两侧的侧支架组件分别绕所述第一横向折叠转动点和第二横向折叠转动点相向转动而折叠后呈第二折叠状态，在所述第二折叠状态下，其中一侧的侧支架组件绕所述第一横向折叠转动点转动折叠到与所述横撑靠拢，另一侧的侧支架组件绕所述第二横向折叠转动点转动折叠到与所述一侧的侧支架组件相靠拢。
4、根据权利要求1所述的儿童推车，其特征在于，所述横撑的第一横向折叠转动点位于所述横撑的一端处，第二横向折叠转动点位于所述横撑的另一端处。
5、根据权利要求4所述的儿童推车，其特征在于，处于第一折叠状态的所述两侧的侧支架组件分别绕所述第一横向折叠转动点和第二横向折叠转动点相向折叠后呈第二折叠状态，在所述第二折叠状态下，其中一侧的侧支架组件绕所述第一横向折叠转动点转动折叠到与所述横撑接触，另一侧的侧支架组件绕所述第二横向折叠转动点转动折叠到与所述横撑接触。
6、根据权利要求1所述的儿童推车，其特征在于，所述横撑的第一横向折叠转动点和所述第二横向折叠转动点均位于所述横撑的两端之间。
7、根据权利要求6所述的儿童推车，其特征在于，所述第一横向折叠转动点和所述第二横向折叠转动点距离相邻端的距离不相等，且距离相邻端较远的横向折叠转动点到对应的相邻端的横撑段与所述第一横向折叠转动点和所述第二横向折叠转动点之间的横撑段之间的夹角不大于90°。
8、根据权利要求2-7中的任一项所述的儿童推车，其特征在于，连接所述两侧的侧支架组件之间的横撑的数量为至少2个，在第一折叠状态下，所有横撑的第一横向折叠转动点在垂直于所述横撑长度延伸方向的方向上共线，所有横撑的第二横向折叠转动点在垂直于所述横撑长度延伸方向的方向上共线。
9、根据权利要求1所述的儿童推车，其特征在于，
所述两侧的前轮支架之间连接有一个所述横撑；
和/或；
所述两侧的后轮支架之间连接有一个所述横撑；
和/或；
所述两侧的推杆之间还连接有一个所述横撑。
10、根据权利要求1所述的儿童推车，其特征在于，每侧的所述侧支架还包括一端与所述前轮支架的前端可转动连接的前轮支架连接件，两侧的所述前轮支架连接件的另一端之间连接有一个所述横撑。
11、根据权利要求10所述的儿童推车，其特征在于，在第一折叠状态下，所述前轮支架连接件相对所述前轮支架向前翻转。
12、根据权利要求1-7及9-11中的任一项所述的儿童推车，其特征在于，所述儿童推车还包括与所述后轮支架可转动连接的后轮组件，在第一折叠状态下，所述前轮组件和后轮组件相向转动折叠到并拢的所述前轮支架和后轮支架之间。
13、根据权利要求1-7及9-11中的任一项所述的儿童推车，其特征在于，所述推杆为可伸缩式推杆。
14、根据权利要求1-7及9-11中的任一项所述的儿童推车，其特征在于，所述每一侧的推杆、前轮支架和后轮支架通过车架连接件连接，且所述每一侧的推杆、前轮支架和后轮支架中的至少两个与所述车架连接件可转动的连接。
PCT/CN2014/095422 2014-11-07 2014-12-29 一种可二次折叠的儿童推车 WO2016070485A1 (zh)

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