WO2018103224A1 - 一种反向伞 - Google Patents

一种反向伞 Download PDF

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Publication number
WO2018103224A1
WO2018103224A1 PCT/CN2017/076683 CN2017076683W WO2018103224A1 WO 2018103224 A1 WO2018103224 A1 WO 2018103224A1 CN 2017076683 W CN2017076683 W CN 2017076683W WO 2018103224 A1 WO2018103224 A1 WO 2018103224A1
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Prior art keywords
bone
tailbone
main
umbrella
hinged
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PCT/CN2017/076683
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English (en)
French (fr)
Inventor
王卿泳
陈仕天
李文煌
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梅花（晋江）伞业有限公司
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Publication of WO2018103224A1 publication Critical patent/WO2018103224A1/zh

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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B25/00—Details of umbrellas
    • A45B25/02—Umbrella frames
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B25/00—Details of umbrellas
    • A45B25/14—Devices for opening and for closing umbrellas

Definitions

  • the present invention relates to an umbrella, and in particular to a reverse umbrella.
  • Umbrella is widely used as a commonly used rain-proof sunshade tool.
  • the traditional umbrella faces the handle on the outer edge of the umbrella cloth, which results in a large opening and closing range of the straight-bone umbrella, which is not conducive to the expansion and closure of the umbrella in a small space.
  • the umbrella cloth will adhere to a large amount of rainwater. After the umbrella is collected, the water of the umbrella cloth will drip onto the floor, causing the floor to be slippery.
  • there are various reverse closed umbrellas which are closed in reverse.
  • the umbrella is backed to the handle outside the umbrella cloth, which can overcome the problem of large opening and closing of the straight bone umbrella.
  • the wet surface of the umbrella cloth can be gathered to prevent the umbrella water from falling into the external pollution environment.
  • a reverse closed umbrella which comprises a middle rod, an umbrella cloth and an umbrella frame.
  • the umbrella frame comprises an upper jaw and is fixedly arranged on the middle rod.
  • the upper end; the lower nest, the activity sleeve is set on the middle rod, has an upper nest body and a lower nest body;
  • the main bone has one end hinged to the lower nest body, and the other end is connected with the outer edge of the umbrella cloth; the bone is hinged at one end to the upper jaw.
  • the other end is hinged to the first position of the main bone, the first position is located in the middle section of the main bone; the bending mechanism is connected between the upper nest and the main bone, and is used for pulling the end of the main bone in an open state.
  • the outer edge of the umbrella cloth is turned downward, and the main bone is released in an umbrella state to make the natural straightening.
  • the bending mechanism includes a first sliding sleeve, and the movable sleeve is disposed on the main bone between the lower nest body and the first position; the limiting block , the second position is fixedly disposed between the first position and the end of the main bone; the second sliding sleeve is sleeved on the main bone between the limiting block and the end of the main bone; a pull rod, one end is hinged to the upper nest body, and the other end is hinged to the first sliding sleeve; the second pull rod, The first end is hinged to the first sliding sleeve, the other end is hinged to the second sliding sleeve; the second sliding sleeve is restricted to the second position, and the first and second pulling rods pull the end of the main bone downward. , so that the outer edge of the umbrella cloth is drained downwards.
  • the above umbrella frame is relatively complicated in structure, has many assembled parts, is inconvenient to assemble, takes a long time, and is produced. Ben Gao, to be further improved.
  • the object of the present invention is to overcome the shortcomings of the prior art and to provide a reverse umbrella with simple structure, convenient assembly and low manufacturing cost.
  • a reverse umbrella includes a middle rod, an upper jaw fixedly disposed at an upper end of the middle rod, and a lower nest movable on the middle rod, and further includes:
  • the tailbone having elasticity, having a first end hinged to the second end of the main bone and allowing it to be folded or unfolded relative to the main bone;
  • a bone having a first end hinged to the lower nest, a second end hinged to the main bone, and a hinge point located adjacent to the second end of the main bone;
  • the bone is gathered and has elasticity.
  • the first end is connected with the bone to make the bone and the gathering bone close together, and the second end is slidably connected with the last end of the tailbone within a defined stroke, and is set to be the tail bone and the main bone when the umbrella is opened.
  • the back of the bone is deformed to the bone, and the end of the tailbone is pulled downward; when the umbrella is closed, the bone is closed toward the bone to reset, releasing the tailbone and driving the tailbone upward and folding with the main bone.
  • the second end of the gathered bone is provided with a sliding sleeve disposed at the end of the tailbone, and the end of the tailbone is provided with a limiting block for restricting the sliding of the sliding sleeve inward, and sliding when opening the umbrella
  • the sleeve is restrained by the restriction block and cannot continue to move inward, so that the gathered bone bends the end of the tailbone.
  • the sliding sleeve is injection molded at the second end of the gathered bone.
  • first end of the gathered bone and the bone are connected to each other in a parallel state by an injection molded connecting block.
  • the first end of the gathered bone is connected to the middle and lower sections of the bone.
  • the second end of the main bone is provided with a hinge seat, and an upper side of the hinge seat is formed with a hinge groove extending along a length thereof, the first end of the tail bone is hinged in the hinge groove, and the hinge groove limits the tail bone
  • the main bone is swung in a range of 180 degrees.
  • the lower side of the hinge seat is swingably hinged with a guiding block for preventing the folding bone from being yawed, and the guiding block is formed with an elongated hole through which the collecting bone passes.
  • the main bone, the bone, the tail bone and the gathering bone are glass fibers, an elastic resin or an elastic metal.
  • the working principle of the umbrella When it is set to open the umbrella, the lower nest slides upward along the middle rod, the tailbone and the main bone are unfolded, and the back bone is deformed to expand, and the second end of the bone is narrowed at the end of the tailbone. Sliding inside, so that the gathering bone pulls the end of the tailbone downward to realize the opening of the umbrella; when it is set to be an umbrella, the lower nest slides down the middle rod, the main bone is folded, and the bone is closed to release the tailbone, because the gathered bone is elastic, and The bones are connected to each other in a state of being close to each other.
  • the second end of the gathering bone is provided with a sliding sleeve which can slide at the end of the tailbone.
  • the tailbone is provided with a limiting block for restricting the sliding of the slider inward, and the second end of the collecting bone is realized at the end of the tailbone through the slider and the limiting block. Sliding within a defined stroke, the method has the advantages of simple structure, convenient assembly, low cost, and the like;
  • the bones and the gathered bones are connected to each other through an injection molded connecting block, and the connecting method has the advantages of simple manufacturing process, low manufacturing cost, high connection strength, and the like;
  • the sliding sleeve is formed by the injection molding at the second end of the bone, and has the advantages of simple manufacturing process and low production cost;
  • the lower side of the hinged seat can be swingably hinged with a guiding block to prevent the bone from being deflected when the umbrella is opened or opened.
  • FIG. 1 is a schematic view showing the structure of an open umbrella state according to the present invention.
  • FIG. 2 is a schematic structural view of an umbrella state according to the present invention.
  • Figure 3 is an enlarged view of Figure 1A;
  • Figure 4 is a perspective view of the hinged seat
  • Figure 5 is a perspective view of the guiding block.
  • a reverse umbrella includes a middle rod 1, a nest 2, a lower nest 3, a plurality of main bones 4, a plurality of bones 5, a plurality of tail bones 6, a plurality of gathered bones 7, and a plurality of guiding blocks 8.
  • the main bone 4, the bone 5, the tail bone 6, and the gathering bone 7 are made of an elastic material, and the elastic material is specifically glass fiber, elastic resin or elastic metal;
  • the middle rod 1 is a hollow metal tube
  • the upper jaw 2 is fixedly disposed at the upper end of the middle rod 1; the lower nest 3 is sleeved on the middle rod 1 below the upper jaw 2, and a grip portion 31 is disposed at the bottom of the lower nest 3, and the grip portion 31 is injection molded. Formed at the bottom of the lower nest 3;
  • the first end of the main bone 4 is hinged to the upper jaw 2, and the second end is provided with a hinge seat 41.
  • the upper side of the hinge seat 41 is formed with a hinge groove 411 extending in the longitudinal direction thereof.
  • the upper side of the hinge seat 41 is provided with The two clamping plates 412 are oppositely spaced, and the gap between the two clamping plates 412 forms a hinge groove 411;
  • the lower side of the hinge seat 41 is provided with a hinge plate 413, and a hinge hole 414 is formed in the middle of the hinge plate 413, and a plurality of main bones 4 are circumferentially distributed.
  • the first end of the bone 5 is hinged to the lower nest 3, and the second end is hinged to a hinge point near the second end of the main bone 4;
  • the tailbone 6 has elasticity, and the first end thereof is hinged with the hinge seat 41 in the hinge groove 411 so as to be folded or unfolded relative to the main bone 4, and the hinge groove 411 can restrict the tail bone 6 from swinging within 180 degrees with respect to the main bone 4. Its second end is a free end;
  • the bone 7 is gathered to have elasticity, and the first end thereof is connected with the bone 5 so that the bone 5 and the collecting bone 7 are close to each other. Specifically, the first end and the bone 5 are in parallel with each other, and the connecting block 51 is injection-molded. Connected to each other, so when the umbrella is closed, the gathering bone 7 can be closed toward the bone 5; the second end is slidably connected with the last end of the tailbone 6 within a defined stroke. Specifically, the second end is provided with a sliding arrangement on the tailbone.
  • the sliding sleeve 71 at the end of 6 is arranged such that when the umbrella is opened, the tailbone 6 and the main bone 4 are unfolded, and the gathering bone 7 is deformed to the support bone 5, and the sliding sleeve 71 slides inward along the end of the tailbone 6 And the end of the tailbone 6 is pulled downward; when the umbrella is closed, the sliding sleeve 71 slides outward along the end of the tailbone 6, and the gathering bone 7 is reset toward the bone 5, releasing the tailbone 6 and driving the tailbone 6 upward and the main bone 4 folding and folding, specifically, the sliding sleeve 71 is formed by injection molding at the second end of the collecting bone 7; at the end of the tailbone 6 is fixedly provided with a limiting block 61 for restricting the movement of the sliding sleeve 71, which is set to be opened when the umbrella is opened The sleeve 71 slides inward along the end of the tailbone 6 to be restrained by the limiting block 61, and cannot continue to slide in
  • the bone 5 and the gathering bone 7 are connected to each other by an injection-molded connecting block 51.
  • the sliding sleeve 71 is formed by injection molding at the second end of the collecting bone 7. When assembling, the bone 5, the gathering 7, and the sliding sleeve 71 are integrated.
  • the reverse umbrella is more convenient to assemble, and also saves assembly time and reduces manufacturing costs.
  • the guiding block 8 is made of plastic material, and its first end is hinged with the hinge plate 413 on the lower side of the hinge seat 41.
  • the guiding block 8 includes two spaced side plates 81 on both sides of the plate 81.
  • the first end is oppositely formed with a perforation 82 of a size corresponding to the aperture of the hinge hole 414 on the hinge plate 413.
  • the rivet 415 passes through the through hole 82 on the first end of the guiding block 8 and the hinge hole 414 on the hinge plate 413, which will guide
  • the block 8 is swingably hinged on the lower side of the hinge seat 41; the second end thereof is formed with an elongated hole through which the collecting bone 7 passes, so that the guiding block 8 can be Swinging in the stroke defined on the gathering bone 7, specifically, the second ends of the side plates 81 are connected to each other, and the gap between the side plates 81, that is, between the first end and the second end of the side plates 81
  • the gap forms an elongated hole through which the collecting bone 7 passes, and the guiding block 8 prevents the slanting of the bone 7 when the umbrella is closed or opened.
  • hinge structure of the upper jaw 2 and the main bone 4, and the hinge structure of the lower nest 3 and the bone 5 are well known in the prior art and will not be described in detail herein.
  • the specific working mode when set to open the umbrella, the lower nest 3 slides upward along the middle rod 1, the tail bone 6 and the main bone 4 are unfolded, and the closed bone 7 is deformed to the support bone 5, and the sliding sleeve 71 is along the tail bone 6
  • the last segment slides inwardly to be restrained by the limiting block 61, and can not continue to move inward, so that the gathering bone 7 pulls down the last segment of the tailbone 6 to realize the opening of the umbrella
  • the lower nest 3 follows the middle rod 1 When sliding down, the main bone 4 is folded, and the bone 7 is closed to release the tailbone 6.
  • the sliding sleeve 71 slides along the end of the tailbone 6 in a direction away from the limiting block 61, because the gathered bone 7 has elasticity, and the bone 7 and the bone are gathered. 5 is connected to each other by the injection-molded connecting block 51 in a state of parallel close-up. Therefore, when the bone 7 is not subjected to an external force, the gathered bone 7 is gathered toward the bone 5 to be reset, and the tail bone 6 is lifted upward to realize an umbrella.

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  • Walking Sticks, Umbrellas, And Fans (AREA)

Abstract

一种反向伞，包括中棒（1）、固定设置于中棒（1）上端的上巣（2）、活动套设在中棒（1）上的下巢（3），还包括：主骨（4），其第一端与上巣（2）铰接；尾骨（6），具有弹性，其第一端与主骨（4）的第二端铰接，并使其可相对主骨（4）折叠或展开；支骨（5），其第一端与下巢（3）铰接，其第二端与主骨（4）铰接，铰接点位于靠近主骨（4）第二端的位置；收拢骨（7），具有弹性，其第一端与支骨（5）连接使支骨（5）与收拢骨（7）相互靠拢，其第二端与尾骨（6）的末段在限定行程内滑动连接，设置成在开伞时，尾骨（6）与主骨（4）被展开，收拢骨（7）背向支骨（5）被形变撑开，并将尾骨（6）的末段向下拉弯；在收伞时，收拢骨（7）朝向支骨（5）靠拢复位，释放尾骨（6）并带动尾骨（6）向上与主骨（4）折叠收拢，该反向伞结构简单，动作精确且组装方便。

Description

一种反向伞 技术领域
本发明涉及一种伞，具体涉及一种反向伞。
背景技术
伞作为常用的避雨遮阳工具被广泛应用，传统的伞在收伞状态伞布的外沿朝向把手，导致直骨伞的开合幅度大，不利于在狭小的空间进行伞的展开和闭合，另外在雨水天气伞布会附着大量雨水，在收伞后伞布的积水会滴落到地板上，造成地板湿滑，针对上述问题，目前已有多种的反向闭合伞，反向闭合伞在收伞状态伞布外沿背向把手，这样可克服直骨伞开合幅度大的问题，另外还可将伞布的潮湿面收拢在内，防止伞布积水滴落在外污染环境。
为了解决现有的问题，本案申请人提供的技术方案如专利文献CN 205082824U中公开一种反向闭合伞，包括中棒、伞布和伞架，伞架包括上巣，固定设置在中棒的上端；下巢，活动套设在中棒上，具有上巢体和下巢体；主骨，一端与下巢体铰接，另一端与伞布外沿连接；支骨，一端与上巣铰接，另一端与主骨的第一位置铰接，第一位置位于主骨的中段；拉弯机构，连接在上巢体与主骨之间，用于在开伞状态将主骨的末段向下拉弯使伞布外沿朝下，在收伞状态释放主骨使之自然伸直，拉弯机构包括第一滑套，活动套设在下巢体与第一位置之间的主骨上；限位块，固定设置在主骨的第二位置，第二位置位于第一位置与主骨末端之间；第二滑套，活动套设在限位块与主骨末端之间的主骨上；第一拉杆，一端与上巢体铰接，另一端与第一滑套铰接；第二拉杆，一端与第一滑套铰接，另一端与第二滑套铰接；设置成开伞状态，第二滑套被限制在第二位置，使第一、第二拉杆将主骨的末段向下拉弯，使伞布外沿朝下排水。
上述伞架在结构上较为复杂，组装部件多，组装不方便，耗时长，生产成 本高，有待进一步改进。
发明内容
本发明的目的是克服现有技术的缺点，提供一种结构简单、组装方便、制作成本低的反向伞。
本发明采用如下的技术方案：
一种反向伞，包括中棒、固定设置于中棒上端的上巣、活动套设在中棒上的下巢，还包括：
主骨，其第一端与上巣铰接；
尾骨，具有弹性，其第一端与主骨的第二端铰接，并使其可相对主骨折叠或展开；
支骨，其第一端与下巢铰接，其第二端与主骨铰接，铰接点位于靠近主骨第二端的位置；
收拢骨，具有弹性，其第一端与支骨连接使支骨与收拢骨相互靠拢，其第二端与尾骨的末段在限定行程内滑动连接，设置成在开伞时，尾骨与主骨被展开，收拢骨背向支骨被形变撑开，并将尾骨的末段向下拉弯；在收伞时，收拢骨朝向支骨靠拢复位，释放尾骨并带动尾骨向上与主骨折叠收拢。
进一步的，所述收拢骨的第二端设置有滑动设置在所述尾骨末段的滑套，所述尾骨末段设置有用于限制滑套向内滑动的限位块，在开伞时，滑套被限位块限制，无法继续向内移动，使所述收拢骨将所述尾骨末段向下拉弯。
进一步的，所述滑套注塑成型在所述收拢骨的第二端。
进一步的，所述收拢骨的第一端与所述支骨在平行靠拢的状态通过注塑成型的连接块相互连接。
进一步的，所述收拢骨的第一端与所述支骨的中下段连接。
进一步的，所述主骨的第二端设置有铰接座，铰接座上侧形成有沿其长度方向延伸的铰接槽，所述尾骨的第一端铰接在铰接槽中，铰接槽限制所述尾骨相对所述主骨在180度范围内摆动。
进一步的，所述铰接座下侧可摆动铰接有用于防止所述收拢骨偏摆的导正块，导正块形成有供所述收拢骨穿过的长形孔。
进一步的，所述主骨、支骨、尾骨和收拢骨为玻璃纤维、弹性树脂或弹性金属。
由上述对本发明的描述可知，与现有技术相比，本发明的有益效果是：
伞的工作原理：设置成开伞时，下巢沿中棒向上滑动，尾骨与主骨被展开，收拢骨背向支骨被形变撑开，收拢骨第二端在尾骨的末段的限定行程内滑动，使收拢骨将尾骨末段向下拉弯，实现开伞；设置成收伞时，下巢沿中棒向下滑动，主骨被折叠，收拢骨释放尾骨，因为收拢骨具有弹性，且与支骨在相互靠拢的状态下连接，所以当收拢骨无外力作用时，收拢骨朝向支骨收拢复位，以带动尾骨向上收拢，实现收伞，与现有技术相比，整体结构简单，动作精确且组装方便；
收拢骨第二端设置有可在尾骨末段滑动的滑套，尾骨上设置有限制滑块向内滑动的限位块，通过滑块和限位块来实现收拢骨第二端在尾骨末段的限定行程内滑动，该方式具有结构简单，组装方便、成本低等优点；
支骨与收拢骨通过注塑成型的连接块相互连接，该连接方式具有制作工艺简单，制作成本低、连接强度高等优点；
滑套通过注塑成型在收拢骨的第二端，具有制作工艺简单，制作成本低等优点；
铰接座的下侧可摆动铰接有导正块，在收伞或开伞时，可防止收拢骨偏摆。
附图说明
图1为本发明，开伞状态结构示意图；
图2为本发明，收伞状态结构示意图；
图3为图1A处的放大图；
图4为铰接座的立体图；
图5为导正块的立体图。
具体实施方式
以下通过具体实施方式对本发明作进一步的描述。
参照图1至图4，一种反向伞，包括中棒1、上巢2、下巢3、若干主骨4、若干支骨5、若干尾骨6、若干收拢骨7、若干导正块8，其中主骨4、支骨5、尾骨6、收拢骨7为弹性材料制成，弹性材料具体为玻璃纤维、弹性树脂或弹性金属；
中棒1为中空的金属管；
上巣2固定设置在中棒1的上端；下巢3活动套设在中棒1上，位于上巣2的下方，在下巢3的底部设置有一个手握部31，手握部31通过注塑成型在下巢3的底部；
主骨4的第一端与上巣2铰接，第二端设置有铰接座41，铰接座41上侧形成有延其长度方向延伸的铰接槽411，具体的，铰接座41的上侧设置有间隔相对的两夹板412，两夹板412之间的间隙形成铰接槽411；铰接座41的下侧设置有铰接板413，铰接板413的中间形成有一贯穿的铰接孔414，若干主骨4圆周分布在上巢2上并沿径向延伸；
支骨5的第一端与下巢3铰接，第二端与靠近主骨4第二端的铰接点进行铰接；
尾骨6，具有弹性，其第一端与铰接座41铰接在铰接槽411中，使其可相对主骨4折叠或展开，铰接槽411可限制尾骨6相对主骨4在180度范围内摆动；其第二端为自由端；
收拢骨7，具有弹性，其第一端与支骨5连接使支骨5与收拢骨7相互靠拢，具体的，其第一端与支骨5在平行靠拢的状态通过注塑成型的连接块51相互连接，所以在收伞时，收拢骨7可以朝向支骨5收拢复位；其第二端与尾骨6的末段在限定行程内滑动连接，具体的，其第二端设置有滑动设置在尾骨6末段的滑套71，设置成在开伞时，尾骨6与主骨4被展开，收拢骨7背向支骨5被形变撑开，此时滑套71沿尾骨6末段向内滑动，并将尾骨6的末段向下拉弯；在收伞时，滑套71沿尾骨6末段向外滑动，收拢骨7朝向支骨5靠拢复位，释放尾骨6并带动尾骨6向上与主骨4折叠收拢，具体的，该滑套71通过注塑成型在收拢骨7的第二端；在尾骨6的末段固定设置有限制滑套71活动的限位块61，设置成开伞时，滑套71沿尾骨6末段向内滑动至被限位块61限制，无法继续向内滑动，使收拢骨7将尾骨6末段向下拉弯，实现开伞，具体的，限位块61通过注塑成型在尾骨6的末段。
支骨5与收拢骨7通过注塑成型的连接块51相互连接，滑套71通过注塑成型在收拢骨7的第二端，在组装时支骨5、收拢7、滑套71为一整体，使得该反向伞在组装时较为方便，同时也节省了组装的时间，减少了制作成本。
导正块8，由塑性材料制成，其第一端与铰接座41下侧的铰接板413铰接，具体的，导正块8包括有两间隔相对的侧板81，在两侧板81的第一端相对形成有与铰接板413上的铰接孔414孔径大小一致的穿孔82，铆钉415穿过导正块8第一端上的穿孔82和铰接板413上的铰接孔414，将导正块8可摆动地铰接在铰接座41的下侧；其第二端形成有供收拢骨7穿过的长形孔，使导正块8可 在收拢骨7上限定的行程内摆动，具体的，两侧板81的第二端相互连接，两侧板81之间的间隙，即两侧板81的第一端与第二端之间的间隙形成供收拢骨7穿过的长形孔，导正块8可在收伞或开伞时，防止收拢骨7偏摆。
上巣2与主骨4的铰接结构、下巢3与支骨5的铰接结构为公知的现有技术，在这里不再详细说明。
具体工作方式：设置成开伞时，下巢3沿中棒1向上滑动，尾骨6与主骨4被展开，收拢骨7背向支骨5被形变撑开，此时滑套71沿尾骨6末段向内滑动至被限位块61限制，无法继续向内移动，使收拢骨7将尾骨6末段向下拉弯，实现开伞；设置成收伞时，下巢3沿中棒1向下滑动，主骨4被折叠，收拢骨7释放尾骨6，此时滑套71沿尾骨6末段向远离限位块61的方向滑动，因为收拢骨7具有弹性，并且收拢骨7与支骨5在平行靠拢的状态通过注塑成型的连接块51相互连接，所以当收拢骨7无外力作用时，收拢骨7朝向支骨5收拢复位，带动尾骨6向上收拢，实现收伞。
以上所述，仅为本发明的较佳实施例而已，故不能以此限定本发明实施的范围，即依本发明申请专利范围及说明书内容所作的等效变化与修饰，皆应仍属本发明专利涵盖的范围内。

Claims (8)

  1. 一种反向伞，包括中棒、固定设置于中棒上端的上巣、活动套设在中棒上的下巢，其特征在于：还包括：
    主骨，其第一端与上巣铰接；
    尾骨，具有弹性，其第一端与主骨的第二端铰接，并使其可相对主骨折叠或展开；
    支骨，其第一端与下巢铰接，其第二端与主骨铰接，铰接点位于靠近主骨第二端的位置；
    收拢骨，具有弹性，其第一端与支骨连接使支骨与收拢骨相互靠拢，其第二端与尾骨的末段在限定行程内滑动连接，设置成在开伞时，尾骨与主骨被展开，收拢骨背向支骨被形变撑开，并将尾骨的末段向下拉弯；在收伞时，收拢骨朝向支骨靠拢复位，释放尾骨并带动尾骨向上与主骨折叠收拢。
  2. 根据权利要求1所述的一种反向伞，其特征在于：所述收拢骨的第二端设置有滑动设置在所述尾骨末段的滑套，所述尾骨末段设置有用于限制滑套向内滑动的限位块，在开伞时，滑套被限位块限制，无法继续向内移动，使所述收拢骨将所述尾骨末段向下拉弯。
  3. 根据权利要求2所述的一种反向伞，其特征在于：所述滑套注塑成型在所述收拢骨的第二端。
  4. 根据权利要求1或2或3所述的一种反向伞，其特征在于：所述收拢骨的第一端与所述支骨在平行靠拢的状态通过注塑成型的连接块相互连接。
  5. 根据权利要求1或2或3所述的一种反向伞，其特征在于：所述收拢骨的第一端与所述支骨的中下段连接。
  6. 根据权利要求1或2或3所述的一种反向伞，其特征在于：所述主骨的 第二端设置有铰接座，铰接座上侧形成有沿其长度方向延伸的铰接槽，所述尾骨的第一端铰接在铰接槽中，铰接槽限制所述尾骨相对所述主骨在180度范围内摆动。
  7. 根据权利要求6所述的一种反向伞，其特征在于：所述铰接座下侧可摆动铰接有用于防止所述收拢骨偏摆的导正块，导正块形成有供所述收拢骨穿过的长形孔。
  8. 根据权利要求1或2或3所述的一种反向伞，其特征在于：所述主骨、支骨、尾骨和收拢骨为玻璃纤维、弹性树脂或弹性金属材料。
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