WO2013060114A1 - 折叠车 - Google Patents

折叠车 Download PDF

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Publication number
WO2013060114A1
WO2013060114A1 PCT/CN2012/073085 CN2012073085W WO2013060114A1 WO 2013060114 A1 WO2013060114 A1 WO 2013060114A1 CN 2012073085 W CN2012073085 W CN 2012073085W WO 2013060114 A1 WO2013060114 A1 WO 2013060114A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
tube
sleeve
middle tube
wheel
Prior art date
Application number
PCT/CN2012/073085
Other languages
English (en)
French (fr)
Inventor
林益成
Original Assignee
Lin Yi-Cheng
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 Lin Yi-Cheng filed Critical Lin Yi-Cheng
Publication of WO2013060114A1 publication Critical patent/WO2013060114A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K15/00—Collapsible or foldable cycles
    • B62K15/006—Collapsible or foldable cycles the frame being foldable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K15/00—Collapsible or foldable cycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K15/00—Collapsible or foldable cycles
    • B62K2015/005—Collapsible or foldable cycles having additional wheels for use when folded or collapsed

Definitions

  • the present invention relates to a folding vehicle, and more particularly to a folding vehicle equipped with an auxiliary wheel.
  • an auxiliary wheel is installed at the bottom of the middle tube of the folding bicycle, for example, the Chinese Patent No. M381572, however, when the body of the folding bicycle is known to be upright, the middle tube The axis of the tube is inclined with respect to the ground, and the bottom of the middle tube is perpendicular to the axis.
  • the auxiliary wheel comprises a connecting seat and a wheel body, and the connecting seat is connected with the bottom of the middle tube, so that the connecting seat and the middle tube
  • the axis is vertical, so that when the user drags the folding car, the wheel axle of the wheel body will be tilted together with the axle of the front and rear wheels, thereby causing the folding car to tilt left or right together, which makes the user difficult to control. Folding car turns.
  • the auxiliary wheel of the conventional folding car can only rely on the seat cushion to drive its steering.
  • the seat cushion When the user drags the vehicle body, the seat cushion must be rotated by hand to make the whole body turn. In other words, the user's hand should constantly rotate with the seat cushion. It is very inconvenient and unsatisfactory, increasing the burden on the user's hand, causing soreness in the hand and severe spraining of the wrist. It is necessary to further improve the above problems.
  • An object of the present invention is to provide a folding cart which can maintain a stable center of gravity during cornering without tilting to the left or right and being easy to control.
  • the present invention adopts the following technical solutions:
  • the folding cart of the present invention includes a frame, a riser, a seat cushion set, an auxiliary wheel set, a first bundle and a second sleeve.
  • the frame includes a hollow seat tube, the seat tube is cut into at least one limiting slot, and the limiting slot extends axially downward from the top of the seat tube;
  • the riser includes a middle tube and a seat post, wherein the frame
  • the tube can be slidably disposed through the seat tube, and the middle tube is cut into at least one slot, the slot extends axially downward from the top of the tube, the seat rod has an outer wall, and the outer wall of the seat rod is recessed There is an axially extending chute; wherein the middle pipe encloses a shaft hole, and the seat bar is slidably disposed in the shaft hole;
  • the seat cushion is set on the top of the seat post;
  • the auxiliary wheel set includes a connecting seat, a wheel base and a wheel body.
  • the connecting seat is disposed at the bottom of the middle pipe.
  • the wheel seat is horizontally rotatably disposed at the bottom of the connecting seat, and the wheel body is rotatably disposed at The wheel base; wherein the bottom of the middle tube forms a tapered surface, the connecting seat is parallel to the bottom of the middle tube, so that an axis of the middle tube forms an angle with the connecting seat, so that the wheel body
  • the axle can be kept parallel to the ground;
  • the first sleeve is substantially c-shaped, the first sleeve is sleeved on the top of the seat tube and selectively tightens the seat tube, and the middle tube is fixed to the seat tube, and Disposing at least one axially extending groove at the top of the first sleeve;
  • the second sleeve is substantially c-shaped, the second sleeve is sleeved on the top
  • the protrusion at the bottom of the second sleeve is positioned at the top of the first sleeve.
  • the angle between the axis of the middle tube and the connecting seat is between 70 degrees and 85 degrees.
  • the axis of the middle tube and the connecting seat are at an angle of 76 degrees.
  • the middle tube is coupled to a central position of the connecting seat, and the wheel base is located at an eccentric position of the bottom of the connecting seat.
  • the auxiliary wheel set includes two limiting portions, the two limiting portions are respectively disposed at the bottom of the connecting seat, and the two limiting portions are adjacent to corners of adjacent sides of the wheel seat, and The two corners are diagonal to each other, and the two limiting portions extend downward by an appropriate distance so that the maximum rotation angle of the wheel base is limited to 120 degrees.
  • the auxiliary wheel set includes two limiting portions, the two limiting portions are respectively disposed at the bottom of the connecting seat, and the two limiting portions are adjacent to two corners of one side of the wheel seat, and the The two corners are at right angles to each other, and the two limiting portions extend downward by an appropriate distance so that the maximum rotation angle of the wheel base is limited to 180 degrees.
  • the first sleeve has an inner contour, and the inner contour is provided with a limiting block, and the limiting block is positioned in the limiting slot of the seat tube.
  • the seat tube includes another limiting slot
  • the first sleeve has a first end and a second end, and an opening is formed between the first end and the second end, and the inner contour of the first sleeve
  • the two carding blocks are positioned at another limit of the seat tube In the bit slot.
  • the folding bicycle further includes a carrying bag, the carrying bag includes a bag opening, the carrying bag covers the frame, and the seat pad passes through the bag opening and is exposed outside.
  • the invention has the beneficial effects that the invention forms the angle between the axis of the middle tube and the connecting seat, so that when the user drags the invention to turn in any direction, the wheel axle of the wheel body can be kept parallel to the ground.
  • the center of gravity of the frame is not shifted to the left or to the right, and the wheel seat can be horizontally rotated, whereby the user can easily manipulate the turning of the present invention.
  • Figure 1 is a perspective view of the present invention.
  • FIG. 2 is an exploded view of the seat cushion set, the riser, and the auxiliary wheel set of the present invention.
  • Figure 2A is a partial enlarged view of the first sheath of the present invention.
  • FIG. 3 is a perspective view of a seat cushion set, a riser, and an auxiliary wheel set of the present invention.
  • Figure 4 is a partial enlarged view of the middle tube and the auxiliary wheel set of the present invention.
  • Figure 5 is a side cross-sectional view of the center tube and the auxiliary wheel set of the present invention.
  • Figure 6 is a side elevational view of the center tube and the auxiliary wheel set of the present invention.
  • Figure 7 is a schematic view showing the state of use of the present invention.
  • the folding bicycle of the present invention comprises a frame 1, a riser, a seat cushion set, an auxiliary wheel set 4, a first bundle 5, and a second sleeve 6. And a storage bag 7.
  • the frame 1 includes a hollow seat tube 10, which of course includes a front wheel, a rear wheel, a grip, a pair of pedals and a transmission mechanism, and the structures of the above folding bicycles are known. , Do not I will repeat them here.
  • the seat tube 10 is divided into two limiting slots 11, 11 ', each of which extends axially downward from the top of the seat tube 10, and the two limiting slots 11, 11 ' Corresponding to each other's position.
  • the riser includes a middle tube 21 and a seat rod 22, the middle tube 21 is slidably disposed through the seat tube 10, and the middle tube 21 is provided with at least one slit 211, and the slit 211 is from the middle tube
  • the top portion of the seat rod 22 has an outer wall, and the outer wall of the seat rod is recessed with an axially extending sliding slot 221, wherein the middle tube 21 defines a shaft hole 212, and the seat rod 22 The shaft hole 212 is slidably disposed.
  • the seat cushion assembly includes a seat cushion fixing mechanism 31 and a seat cushion 32.
  • the seat cushion fixing structure 31 is disposed on the top of the seatpost 22, and the seat cushion 32 is fixed to the cushion fixing mechanism 31.
  • the auxiliary wheel set 4 includes a connecting base 41 , a wheel base 42 , a wheel body 43 and two limiting portions 44 .
  • the connecting seat 41 is disposed at the bottom of the middle tube 21 .
  • the wheel base 42 is horizontally rotatably disposed at the bottom of the connecting base 41.
  • the wheel base includes a bearing to make the wheel seat smoother when horizontally rotated.
  • the wheel body 43 is rotatably disposed on the wheel base 42.
  • the bottom of the middle tube 21 forms a tapered surface
  • the connecting seat 41 is parallel to the bottom of the middle tube 21, so that the axis of the middle tube 21 forms an angle with the connecting seat 41 (see 5), the wheel axle of the wheel body 43 can be kept parallel to the ground.
  • the angle between the axis of the middle pipe 21 and the connecting seat 41 is between 70 degrees and 85 degrees, especially 76 degrees. The best angle.
  • the middle tube 21 is coupled to the center of the connecting seat 41, and the wheel base 42 is located at an eccentric position of the bottom of the connecting base 41 (as shown in FIG. 6).
  • the two limiting portions 44 can also be close to the corners of the adjacent two sides of the wheel base 42 , and the two corners are opposite to each other, so that the maximum rotation angle of the wheel seat 42 is limited. At 120 degrees.
  • the two limiting portions 44 are respectively disposed at the bottom of the connecting seat 41, and the two limiting portions 44 are adjacent to two corners of one side of the wheel seat 42, and the two corners are opposite to each other. It is a right angle, and the two limiting portions 44 extend downward by an appropriate distance so that the maximum rotation angle of the wheel base 42 is limited to 180 degrees.
  • Each of the limiting portions 44 may be a plate body (as shown in FIG. 4) or a screw (not shown).
  • the first sleeve 5 is substantially C-shaped.
  • the first sleeve 5 is sleeved on the top of the seat tube 10 and selectively tightens the seat tube 10 to fix the middle tube 21 to the seat tube 10.
  • the first sleeve 5 has a first end, a second end and an inner contour. An opening is formed between the first end and the second end.
  • the inner contour is provided with a limiting block 51 and two a radially extending latching block 52, the limiting block 51 is positioned in the limiting slot 11 of the seat tube, wherein a latching block 52 is located at the first end and adjacent to the opening, and another latching block 52 is located at the latching block
  • the second end is adjacent to the opening (as shown in FIG. 2A), and the two latching blocks 52 are positioned on the seat tube
  • the other limit slot is inside 11'.
  • at least one axially extending groove 53 is cut in the top of the first sleeve 5.
  • the second sleeve 6 is substantially C-shaped, and the second sleeve 6 is sleeved on the top of the middle tube 21 and selectively tightens the middle tube 21, so that the seat rod 22 is fixed to the middle tube 21, the first
  • the bottom of the sleeve 6 is provided with at least one axially extending projection 61.
  • the second sleeve 6 has an inner contour, the inner contour being provided with a slider 62, the slider 62 being located in the middle tube
  • the slot 211 and the sliding slot 221 of the seat post wherein the sliding slot 221 is provided with a stopping block 222 adjacent to the bottom of the seat post 22 to prevent the seat post from slipping out of the middle tube
  • the chute 221 is provided with another stopping block 223 adjacent to the top of the seat post 22 to prevent the seat post from sliding completely into the middle pipe, wherein the middle pipe slides down a distance
  • the protrusion 61 at the bottom of the second sleeve is positioned at the groove 53 at the top of the first sleeve.
  • the storage bag 7 includes a carrying bag 71 .
  • the carrying bag 71 includes a bag opening 711 .
  • the carrying bag 71 covers the frame 1 , and the seat pad passes through the bag opening 711 . And exposed to the outside.
  • the first and second sleeves 5, 6 are first released, and the middle tube 21 and the seat post 22 are pulled up and the seat cushion 32 is adjusted to the best.
  • the auxiliary wheel set 4 can be pulled up and left in contact with the ground.
  • the frame of the present invention is bent, and then the second sleeve 6 is loosened, so that the seat post 22 is received into the middle tube. 21, the first sleeve 5 is loosened, the middle tube 21 is slid down a distance, the wheel body 43 is placed on the ground, and the protrusion 61 of the second sleeve can be positioned first.
  • the sleeve 53 is folded, and the first and second sleeves 5, 6 are buckled.
  • the carrying bag 71 is taken out from the storage bag 7 and placed on the frame 1, and the seat cushion 32 is attached to the bag opening 711. Exposed, at this point, the user can drag the invention to board the mass transit vehicle.
  • the first sleeve 5 is respectively positioned in one of the limiting slots 11, 11 ' through the limiting block 51 and the two latching blocks 52, so that the first sleeve 5 can be maintained in a fixed position. With any rotation, the rider can easily achieve the effect of positioning the first and second sleeves 5, 6 without turning the first sleeve 5 forward.
  • the seat rod 22 can pass through the two stop blocks 222 of the chute.
  • the 223 is disposed and matched with the slider 62 of the second sleeve, so that the seat rod 22 can be prevented from slipping out of the middle tube 21, so that riding
  • the seat post 22 can be pulled up or received with peace of mind, and when the rider removes the lower seat cushion 32, there is no need to worry about the problem that the seat post 22 slides in and gets caught in the shaft hole 212 of the middle tube.
  • the axis of the middle tube 21 forms an angle ⁇ with the connecting seat 41, and the angle ⁇ angle is between 70 degrees and 85 degrees (the optimum angle is 76 degrees), so the present invention Turning left or right, the axle of the wheel body 43 can be kept parallel to the ground, whereby the center of gravity of the present invention can be kept stable without tilting to the left or to the right, whether the user is standing on the left side of the frame or On the right side, the present invention can be controlled as desired, and the safety of the towing can be further improved.
  • the present invention uses a horizontally rotatable wheel base 42.
  • the user can easily achieve the effect of dragging and dropping the present invention without turning the seat cushion 32 by hand to drive the auxiliary wheel set 4 to turn. It is very convenient and convenient, and can further reduce the burden on the user's hands, eliminating the risk of sore or sprained hands.
  • the wheel base 42 may not rotate smoothly.
  • the wheel base 42 is disposed at an eccentric position of the bottom of the connecting base 41, thereby The wheel base can be smoothly rotated horizontally, so that the present invention is more smooth during cornering, and the two limiting portions 44 can limit the maximum rotation angle of the wheel base 42 to 120 degrees (in other embodiments, it can be limited to 180 degrees).
  • the wheel body 43 can be maintained at an optimal turning angle to further improve the smoothness of the turning of the present invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)

Abstract

一种折叠车，包括一个车架（1）、一个立管、一个座垫组、一个辅助轮组（4）、一个第一束套（5）及一个第二束套（6）。该车架包括一个座管（10）；该立管包括一个中管（21）及一个座杆（22），该中管（21）的底部形成一个斜锥面；该辅助轮组（4）包括一个连接座（41）、一个轮座（42）及一个轮体（43），该轮座（42）可水平转动地设于该连接座（41）底部，该连接座（41）设于该中管（21）的底部并与该底部平行，令该中管（21）的轴线与该连接座（41）之间形成一个夹角，借此，本发明往任一方向转弯时，该轮体（43）的轮轴可恒保持与地面平行，使车架（1）的重心不会朝左或朝右偏移，令使用者可轻松自在的操控本发明转弯。

Description

折叠车 技术领域
本发明涉及一种折叠车， 尤其是一种装设有辅助轮的折叠车。
背景技术
已有的折叠车为了方便于携行， 于是在折叠车的中管的底部加装一辅助轮， 例如中国台湾 M381572号专利所揭， 然而， 当已知折叠车的车体直立时， 该中 管的轴线相对地面呈倾斜状， 且该中管的底部与轴线垂直， 该辅助轮包括一连接 座及一轮体， 该连接座与中管的底部相接， 使该连接座与该中管的轴线垂直， 如 此一来，使用者在拖行该折叠车转弯时， 该轮体的轮轴会与前后轮的轮轴一起倾 斜，进而使折叠车整个车体重心一起左倾或右倾， 造成使用者不易控制折叠车转 弯。
承上述， 当车体重心右倾且使用者站在车体左手边时， 必须要施以较大力量 扶住且要自行站稳，否则会发生连人带车摔倒在地的危险，而当车体重心左倾时， 使用者会感觉车体的重心朝身体贴近并且倍感沉重， 且不论左倾或右倾， 都会对 使用者的手部与脚部肌肉增加负担。
再者，惯用折叠车的辅助轮只能依靠座垫带动其转向，使用者在拖行车体时， 必须用手转动座垫才能使整体转向， 换言之， 使用者的手要不断随着座垫转动非 常不方便且不顺手， 增加使用者的手部的负担， 轻则造成手部酸痛， 重则造成手 腕扭伤， 实有必要进一步改善上述的种种问题。
发明内容
本发明的目的是提供一种折叠车，其转弯时重心可保持稳定不会向左或向右 倾且容易控制。
为实现上述目的， 本发明采取以下技术方案：
本发明的折叠车包括一个车架、 一个立管、 一个座垫组、一个辅助轮组、一 个第一束套及一个第二束套。该车架包括一个中空状座管， 该座管剖设至少一个 限位槽，该限位槽自该座管顶部向下轴向延伸；该立管包括一个中管及一个座杆， 该中管可滑移地穿设该座管， 且该中管剖设至少一个剖槽， 该剖槽自该中管顶部 向下轴向延伸，该座杆具有一个外壁，该座杆的外壁凹设有一个轴向延伸的滑槽； 其中， 该中管围构一个轴孔， 该座杆可滑移地穿设于该轴孔； 该座垫组设于该座杆顶部；
该辅助轮组包括一个连接座、一个轮座及一个轮体，该连接座设于该中管的底部， 该轮座可水平旋转地设于该连接座底部， 该轮体可转动地设于该轮座； 其中， 该中管的底部形成一个斜锥面， 该连接座与该中管的底部平行， 令该中管 的轴线与该连接座之间形成一个夹角， 使该轮体的轮轴可恒保持与地面平行； 该第一束套概呈 c形， 该第一束套套设于该座管顶部并选择性地迫紧该座管， 令该中管固定于该座管， 且该第一束套顶部剖设至少一个轴向延伸的凹槽； 该第二束套概呈 c形， 该第二束套套设于该中管顶部并选择性地迫紧该中管， 令该座杆固定于该中管， 该第二束套底部设有至少一个轴向延伸的凸体， 且该第 二束套具有一个内轮廓， 该内轮廓设有一个滑块， 该滑块位于该中管的剖槽和该 座杆的滑槽中；
其中， 该中管向下滑移一段距离后， 该第二束套底部的凸体定位于该第一束套顶 部的凹槽。
所述中管的轴线与所述连接座的夹角介于 70度〜 85度。
所述中管的轴线与所述连接座的夹角为 76度。
所述中管连结于所述连接座的中心位置，所述轮座位于所述连接座底部的偏 心位置。
所述辅助轮组包括两个限位部， 该两个限位部分别设于所述连接座的底部， 且该两个限位部靠近所述轮座的其中相邻两侧的角落， 且该两个角落彼此为对 角， 且该两个限位部向下延伸一适当距离， 使所述轮座的最大转动角度被限制在 120度。
所述辅助轮组包括两个限位部， 该两个限位部分别设于所述连接座的底部， 且该两个限位部靠近所述轮座的其中一侧的两角落， 且该两个角落彼此为直角， 且该两个限位部向下延伸一适当距离， 使所述轮座的最大转动角度被限制在 180 度。
所述第一束套具有一个内轮廓， 该内轮廓设有一个限位块， 该限位块定位于 所述座管的限位槽内。
所述座管包括另一个限位槽， 所述第一束套具有一个第一端及一个第二端， 该第一端、第二端之间形成一个开口， 该第一束套的内轮廓设有两个径向延伸的 卡抵块，其中一个卡抵块位于该第一端并邻近该开口， 另一个卡抵块位于该第二 端并邻近该开口， 该两个卡抵块定位于所述座管的另一个限位槽内。
所述的折叠车更包括一个携行袋， 该携行袋包括一个袋口， 该携行袋覆盖于 所述车架上， 所述座垫穿过该袋口并裸露于外。
本发明的有益效果是：本发明因该中管的轴线与该连接座形成该夹角，所以， 使用者拖行本发明往任一方向转弯时， 该轮体的轮轴可以恒保持与地面平行， 令 该车架的重心不会朝左或朝右偏移， 且该轮座可水平转动， 借此， 使用者可轻松 自在的操控本发明转弯。
附图说明
图 1为本发明的立体图。
图 2为本发明的座垫组、 立管及辅助轮组的分解图。
图 2A为本发明的第一束套的局部放大图。
图 3为本发明的座垫组、 立管及辅助轮组的立体图。
图 4为本发明的中管与辅助轮组的局部放大图。
图 5为本发明的中管与辅助轮组的侧面剖视图。
图 6为本发明的中管与辅助轮组的侧视图。
图 7为本发明的使用状态示意图。
附图标号： 1、 车架； 10、 座管； 11、 11 '、 限位槽； 21、 中管； 211、 剖槽; 212、 轴孔； 22、 座杆； 221、 滑槽； 222、 223、 挡止块； 31、 座垫固定机构； 32、 座垫； 4、 辅助轮组； 41、 连接座 42、 轮座； 43、 轮体； 44、 限位部； 5、 第一 束套； 51、 限位块； 52、 卡抵块； 53、 凹槽； 6、 第二束套； 61、 凸体； 62、 滑 块； 7、 收纳袋； 71、 携行袋； 711、 袋口。
具体实施方式
以下将以较佳实施例说明本发明的结构特征及其预期达成的功效，然并非用 以限制本发明所欲保护的范畴， 合先叙明。
请参考图 1至图 3及图 7， 本发明的折叠车包括一个车架 1、 一个立管、 一 个座垫组、 一个辅助轮组 4、 一个第一束套 5、 一个第二束套 6及一个收纳袋 7。
该车架 1包括一个中空状座管 10， 当然该车架 1还包含一个前轮、 一个后 轮、 一个握把、 一对踏板及一个传动机构， 上述各项折叠车的结构均属已知， 不 在此赘述。 该座管 10剖设两个限位槽 11、 11 '， 该两个限位槽 11、 11 ' 各自从 该座管 10顶部向下轴向延伸， 且该两个限位槽 11、 11 ' 彼此的位置相对应。
该立管包括一个中管 21及一个座杆 22，该中管 21可滑移地穿设该座管 10， 且该中管 21剖设至少一个剖槽 211，该剖槽 211自该中管 21顶部向下轴向延伸， 该座杆 22具有一个外壁， 该座杆的外壁凹设有一个轴向延伸的滑槽 221， 其中， 该中管 21围构一个轴孔 212， 该座杆 22可滑移地穿设于该轴孔 212。
该座垫组包括一个座垫固定机构 31及一个座垫 32， 该座垫固定结构 31设 于该座杆 22顶部， 该座垫 32固设在该座垫固定机构 31上。
请参考图 2至图 6， 该辅助轮组 4包括一个连接座 41、 一个轮座 42、 一个 轮体 43及两个限位部 44， 该连接座 41设于该中管 21的底部， 该轮座 42可水 平旋转地设于该连接座 41底部， 较佳者该轮座包括一个轴承， 使该轮座水平转 动时更顺畅。 该轮体 43可转动地设于该轮座 42。 其中， 该中管 21的底部形成 一个斜锥面， 该连接座 41与该中管 21的底部平行， 令该中管 21的轴线与该连 接座 41之间形成一个夹角 Θ (详见图 5)， 使该轮体 43的轮轴可恒保持与地面 平行， 较佳者， 该中管 21的轴线与该连接座 41的夹角 Θ介于 70度〜 85度， 其 中尤以 76度为最佳角度。 再者， 该中管 21连结于该连接座 41的中心位置， 该 轮座 42位于该连接座 41底部的偏心位置 （如图 6所示）。 在本实施例中， 该两 个限位部 44也可靠近该轮座 42的其中相邻两侧的角落，且该两个角落彼此为对 角， 使该轮座 42的最大转动角度被限制在 120度。 在其它实施例中， 该两个限 位部 44分别设于该连接座 41的底部，且该两个限位部 44靠近该轮座 42的其中 一侧的两角落， 且该两个角落彼此为直角， 且该两个限位部 44向下延伸一适当 距离，使该轮座 42的最大转动角度被限制在 180度。其中各该限位部 44可以是 一个板体 （如图 4所示）， 也可为一个螺丝 （未绘示）。
该第一束套 5概呈 C形， 该第一束套 5套设于该座管 10顶部并选择性地迫 紧该座管 10， 令该中管 21固定于该座管 10。其中， 该第一束套 5具有一个第一 端、 一个第二端及一个内轮廓， 该第一端、 第二端之间形成一个开口， 该内轮廓 设有一个限位块 51及两个径向延伸的卡抵块 52， 该限位块 51定位于该座管的 限位槽 11 内， 其中一个卡抵块 52位于该第一端并邻近该开口， 另一个卡抵块 52位于该第二端并邻近该开口（如图 2A所示）， 该两个卡抵块 52定位于该座管 的另一个限位槽 11 ' 内。 此外， 该第一束套 5顶部剖设至少一个轴向延伸的凹 槽 53。
该第二束套 6概呈 C形， 该第二束套 6套设于该中管 21顶部并选择性地迫 紧该中管 21，令该座杆 22固定于该中管 21， 该第二束套 6底部设有至少一个轴 向延伸的凸体 61， 较佳者， 该第二束套 6具有一个内轮廓， 该内轮廓设有一个 滑块 62， 该滑块 62位于该中管的剖槽 211和该座杆的滑槽 221中； 其中， 该滑 槽 221在邻近该座杆 22底部处设有一个挡止块 222， 用以防止该座杆滑脱出该 中管， 更佳者， 该滑槽 221在邻近该座杆 22顶部处设有另一个挡止块 223， 用 以防止该座杆完全滑入该中管内， 其中， 该中管向下滑移一段距离后， 该第二束 套底部的凸体 61定位于该第一束套顶部的凹槽 53。
请参考图 1及图 7， 该收纳袋 7中包括一个携行袋 71， 该携行袋 71包括一 个袋口 711， 该携行袋 71覆盖于该车架 1上， 该座垫穿过该袋口 711并裸露于 外。
首先， 请参考图 1， 使用者在骑乘本发明时， 先松开该第一、第二束套 5、 6， 将中管 21和座杆 22上拉并将座垫 32调整到最好的高度后， 该辅助轮组 4可顺 势被上拉呈悬空状， 而不会与地面接触。
再来， 请参考图 7， 使用者要携带本发明上大众运输工具时， 首先， 把本发 明的车架弯折， 接着将该第二束套 6松开， 令该座杆 22收纳入中管 21中， 再将 第一束套 5松开， 使该中管 21向下滑移一段距离， 令该轮体 43承置于地面， 且 该第二束套的凸体 61可定位于第一束套的凹槽 53， 再把第一、 第二束套 5、 6 扣上，最后将携行袋 71从收纳袋 7中取出并套在车架 1上， 并将座垫 32自袋口 711外露， 此时， 使用者就可以拖行本发明搭乘大众运输工具。
其中，该第一束套 5通过该限位块 51以及该两个卡抵块 52分别定位于其中 一个限位槽 11、 11 '， 令该第一束套 5能保持在一个固定位置不会任意转动， 骑 乘者不需再把第一束套 5转正即可轻易地达成使该第一、 第二束套 5、 6相互定 位的效果。
再者，当骑乘者欲将座杆 22自该中管 21向上拉起或向下收纳至中管的轴孔 212内时， 该座杆 22可通过该滑槽的两个挡止块 222、 223的设置并配合该第二 束套的滑块 62， 借此可达成使该座杆 22不会滑脱出该中管 21的功效， 令骑乘 者可安心地拉起或收纳该座杆 22， 且当骑乘者拆卸下座垫 32后， 也不必担心会 发生座杆 22整个滑入并卡住在中管的轴孔 212内的问题。
重要的是， 该中管 21的轴线与该连接座 41之间形成一个夹角 Θ， 且该夹角 Θ角度介于 70度〜 85度（最佳角度为 76度），所以，本发明不论左转或是右转， 该轮体 43的轮轴可以恒保持与地面平行， 借此， 本发明的重心可恒保持稳定而 不会向左倾或向右倾， 不论使用者是站在车架左边或右边， 皆可随心所欲的控制 本发明左右转， 进一步地还可提升拖行时的安全性。
值得注意的是， 本发明使用可水平转动的轮座 42， 使用者可不需用手转动 座垫 32来带动辅助轮组 4转向就能轻松达成拖行本发明左右转的功效， 此种操 作方式非常便利且顺手， 并能进一步减轻使用者手部的负担， 免去手部酸痛或扭 伤的风险。
承上，若直接将该轮座 42设在连接座的中心位置会使该轮座 42转动不顺畅， 本发明就将该轮座 42设于该连接座 41底部的偏心位置，借此， 该轮座可顺利地 水平转动， 令本发明在转弯时更加流畅， 而该两个限位部 44则可限制该轮座 42 的最大转动角度在 120度（在其他实施例可限制在 180度）， 令该轮体 43可维持 在最佳的转弯角度， 进一步提高本发明转弯的顺畅度。

Claims

权利要求
1. 一种折叠车， 它包括：
一个车架， 包括一个中空状座管， 该座管剖设至少一个限位槽， 该限位槽自 该座管顶部向下轴向延伸；
一个立管， 包括一个中管及一个座杆， 该中管可滑移地穿设该座管， 且该中 管剖设至少一个剖槽，该剖槽自该中管顶部向下轴向延伸，该座杆具有一个外壁， 该座杆的外壁凹设有一个轴向延伸的滑槽；
其中， 该中管围构一个轴孔， 该座杆可滑移地穿设于该轴孔；
一个座垫组， 设于该座杆顶部；
一个辅助轮组， 包括一个连接座、一个轮座及一个轮体， 该连接座设于该中 管的底部，该轮座可水平旋转地设于该连接座底部，该轮体可转动地设于该轮座； 一个第一束套， 概呈 c形， 该第一束套套设于该座管顶部并选择性地迫紧 该座管，令该中管固定于该座管， 且该第一束套顶部剖设至少一个轴向延伸的凹 槽；
一个第二束套， 概呈 C形， 该第二束套套设于该中管顶部并选择性地迫紧 该中管，令该座杆固定于该中管，该第二束套底部设有至少一个轴向延伸的凸体， 且该第二束套具有一个内轮廓， 该内轮廓设有一个滑块， 该滑块位于该中管的剖 槽和该座杆的滑槽中；
其中， 该中管向下滑移一段距离后， 该第二束套底部的凸体定位于该第一束 套顶部的凹槽，
其特征在于， 其中， 该中管的底部形成一个斜锥面， 该连接座与该中管的底 部平行，令该中管的轴线与该连接座之间形成一个夹角， 使该轮体的轮轴可恒保 持与地面平行。
2. 根据权利要求 1 所述的折叠车， 其特征在于， 所述中管的轴线与所述连 接座的夹角介于 70度〜 85度。
3. 根据权利要求 2所述的折叠车， 其特征在于， 所述中管的轴线与所述连 接座的夹角为 76度。
4. 根据权利要求 1 所述的折叠车， 其特征在于， 所述中管连结于所述连接 座的中心位置， 所述轮座位于所述连接座底部的偏心位置。
5. 根据权利要求 1 所述的折叠车， 其特征在于， 所述辅助轮组包括两个限 位部， 该两个限位部分别设于所述连接座的底部， 且该两个限位部靠近所述轮座 的其中相邻两侧的角落， 且该两个角落彼此为对角， 且该两个限位部向下延伸一 适当距离， 使所述轮座的最大转动角度被限制在 120度。
6. 根据权利要求 1 所述的折叠车， 其特征在于， 所述辅助轮组包括两个限 位部， 该两个限位部分别设于所述连接座的底部， 且该两个限位部靠近所述轮座 的其中一侧的两角落， 且该两个角落彼此为直角， 且该两个限位部向下延伸一适 当距离， 使所述轮座的最大转动角度被限制在 180度。
7. 根据权利要求 1至 6中任一项所述的折叠车， 其特征在于， 所述第一束 套具有一个内轮廓， 该内轮廓设有一个限位块， 该限位块定位于所述座管的限位 槽内。
8. 根据权利要求 7所述的折叠车， 其特征在于， 所述座管包括另一个限位 槽， 所述第一束套具有一个第一端及一个第二端， 该第一端、第二端之间形成一 个开口， 该第一束套的内轮廓设有两个径向延伸的卡抵块， 其中一个卡抵块位于 该第一端并邻近该开口， 另一个卡抵块位于该第二端并邻近该开口， 该两个卡抵 块定位于所述座管的另一个限位槽内。
9. 根据权利要求 1至 6中任一项所述的折叠车， 其特征在于， 更包括一个 携行袋， 该携行袋包括一个袋口， 该携行袋覆盖于所述车架上， 所述座垫穿过该 袋口并裸露于外。
PCT/CN2012/073085 2011-10-28 2012-03-27 折叠车 WO2013060114A1 (zh)

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JPH08282566A (ja) * 1995-04-07 1996-10-29 Ii S P:Kk 折たたみ自転車
TWM381572U (en) * 2009-12-08 2010-06-01 Yi-Cheng Lin Retractable fixing structure for a folding bike dragging and steering
CN201646933U (zh) * 2010-01-04 2010-11-24 卢一雄 辅助轮避震结构
CN201665281U (zh) * 2010-04-15 2010-12-08 卢一雄 折叠式两轮车
CN201694323U (zh) * 2010-03-17 2011-01-05 卢一雄 多功能亲子折叠自行车

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08282566A (ja) * 1995-04-07 1996-10-29 Ii S P:Kk 折たたみ自転車
TWM381572U (en) * 2009-12-08 2010-06-01 Yi-Cheng Lin Retractable fixing structure for a folding bike dragging and steering
CN201646933U (zh) * 2010-01-04 2010-11-24 卢一雄 辅助轮避震结构
CN201694323U (zh) * 2010-03-17 2011-01-05 卢一雄 多功能亲子折叠自行车
CN201665281U (zh) * 2010-04-15 2010-12-08 卢一雄 折叠式两轮车

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