WO2019227303A1 - 百叶窗帘的梯带装置 - Google Patents

百叶窗帘的梯带装置 Download PDF

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Publication number
WO2019227303A1
WO2019227303A1 PCT/CN2018/088825 CN2018088825W WO2019227303A1 WO 2019227303 A1 WO2019227303 A1 WO 2019227303A1 CN 2018088825 W CN2018088825 W CN 2018088825W WO 2019227303 A1 WO2019227303 A1 WO 2019227303A1
Authority
WO
WIPO (PCT)
Prior art keywords
ladder
wall
holder
ladder string
jalousie
Prior art date
Application number
PCT/CN2018/088825
Other languages
English (en)
French (fr)
Inventor
雷振邦
雷兴邦
Original Assignee
Lei Zhenbang
Lei Xingbang
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 Lei Zhenbang, Lei Xingbang filed Critical Lei Zhenbang
Priority to US17/043,746 priority Critical patent/US11448010B2/en
Priority to PCT/CN2018/088825 priority patent/WO2019227303A1/zh
Publication of WO2019227303A1 publication Critical patent/WO2019227303A1/zh

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/38—Other details
    • E06B9/382—Details of ladder-tapes or ladder chains, e.g. buckles for local shortening of tapes
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/303—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable with ladder-tape
    • E06B9/307—Details of tilting bars and their operation
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/303—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable with ladder-tape
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/32—Operating, guiding, or securing devices therefor
    • E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives

Definitions

  • the embodiments of the present invention relate to the technical field of jalousie, and in particular, to a ladder belt device for jalousie.
  • the jalousie drives the blades to rotate through a ladder belt to realize the opening and closing of the curtain.
  • the upper beam of the jalousie is equipped with a ladder belt holder by means of a U-shaped fixing seat.
  • the main body of the existing ladder belt holder is horizontal.
  • a fixed groove is arranged on the side wall of the installed cylinder.
  • the top end of the ladder belt is fixed in the fixing groove, and then it is wound around the ladder belt holder for a few times, and then extends downward through the fixing seat and the upper beam to protrude. It is connected with each blade in turn, and the ladder belt holder is fixedly connected with the drive shaft coaxially.
  • the ladder belt holder When the operator manually drives or the motor drives the drive shaft to rotate, the ladder belt holder is driven to rotate synchronously, so that the ladder belt can be rolled up in the corresponding direction, and then the blade is rotated by the corresponding angle to open or close. During use, sometimes all the blades need to be pulled up to the top of the curtain. At this time, the ladder strap will be in a relaxed state and will not fit well with the ladder strap holder. At this time, the ladder strap will easily move and jam. The gap between the ladder strap holder and the fixed seat causes the ladder strap to fail to achieve synchronous movement during subsequent use, and the blade turning control is not flexible.
  • the technical problem to be solved by the embodiments of the present invention is to provide a ladder belt device for jalousie, which can effectively maintain a good fit between the ladder belt and the ladder belt holder.
  • a ladder device of a jalousie includes an U-shaped fixing seat fixed in the upper beam of the jalousie, and the two ends are correspondingly mounted on Ladder strap holders on both sides of the fixed base, ladder straps whose top ends pass through the fixed base and are wound around the ladder strap holder, and limit covers fastened to the top end of the fixed base, The inner wall of the position cover and the outer wall of the top of the ladder belt holder are separated by a predetermined distance to form a ladder space.
  • the limit cover is generally in the shape of a middle section wide and narrow at both ends in the axial direction, and the length of the wide section of the limit cover is adapted to the distance between the two plates of the fixed seat. And, the two narrow ends are erected on the top surfaces of both sides of the fixing seat.
  • a stepped opening is formed in the middle of the limit cover at the two ends with a narrow opening at the two ends and a wide opening at the middle, and the ladder strip is wound on the ladder strip holder with a wide opening with a stepped opening.
  • the distance between the inner wall of the section corresponding to the narrow openings at both ends of the stepped opening and the top outer wall of the ladder belt holder is smaller than the distance of the limit cover corresponding to the wide opening of the middle section of the stepped opening. The distance between the inner wall of the section and the top outer wall of the ladder belt holder.
  • the ladder belt holder is further provided with a shaft hole provided through both end surfaces, and a driving shaft for driving the rotation of the ladder belt holder passes through the shaft hole and communicates with the shaft hole.
  • the embodiment of the present invention has at least the following beneficial effects:
  • a limiting cover is fastened to the top end of the fixing seat, and the inner wall of the limiting cover and the top outer wall of the ladder strap holder
  • a predetermined distance is formed between the ladder bands to limit the space of the ladder bands when the ladder bands are loose, to keep the ladder bands and the ladder band holders in a good fit, especially to prevent the ladder bands from getting stuck in the ladder bands.
  • the ladder belt can always move in good synchronization during subsequent use, so that the blades connected to the ladder belt can be controlled accurately.
  • FIG. 1 is a schematic exploded view of an optional embodiment of a ladder device of a jalousie of the present invention.
  • FIG. 2 is a schematic perspective view of a three-dimensional cross-sectional structure of an optional embodiment of a ladder belt device of a jalousie of the present invention.
  • FIG. 3 is a schematic cross-sectional view of an alternative embodiment of the ladder strap device of the jalousie of the present invention.
  • FIG. 4 is a schematic longitudinal sectional view of an alternative embodiment of the ladder strap device of the jalousie of the present invention.
  • a ladder device of a jalousie provided in an embodiment of the present invention includes a U-shaped fixing base 20 fixed in the upper beam 10 of the jalousie, and the two ends correspond to each other.
  • Ladder strap holder 30 erected on both side plates 21 of fixing base 20, a ladder strap 40 whose top end passes through the fixing base 20 and wound around the ladder strap holder 30, and is fastened to the top of fixing base
  • a limiting cover 50 is formed at a predetermined distance from the inner wall of the limiting cover 50 and the top outer wall of the ladder belt holder 40 to form a ladder belt limiting space.
  • a limiting cover 50 is provided on the top end of the fixing base 20, and a ladder belt limiting space is formed by a predetermined distance between the inner wall of the limiting cover 50 and the top outer wall of the ladder belt holder 30, so that When the ladder belt 40 is loose, it can effectively limit the movement space of the ladder belt 40, maintain a good fit of the ladder belt 40 and the ladder belt holder 30, and especially prevent the ladder belt 40 from being caught in the ladder belt holder 30 and the fixing seat. Within the gap between 20, during the subsequent use, the ladder belt 40 can always move well in synchronization, so that the blade (not shown in the figure) connected to the ladder belt 40 can be accurately controlled for turning.
  • two ends of the limit cover 50 located in the axial direction of the ladder belt holder 30 are respectively mounted on the top surface of the fixing base 20, and the limit cover 50 and the The two ends of the ladder belt holder 30 in the axially perpendicular direction respectively protrude from the elastic buckle 52, and the elastic buckle 52 is correspondingly hooked to the side wall of the upper beam 10 and fixed.
  • an elastic buckle 52 is used to cooperate with the upper beam 10 to position and fasten the limit cover 50 on the top of the fixing base 20, and the installation operation is convenient and quick.
  • the limit cover 50 is generally in the shape of an axially wide middle section and narrow at both ends, and the length of the middle wide section of the limit cover 50 and the fixing seat The distance between the two plates 21 on both sides of the base plate 20 is adapted, and a narrow portion at both ends is erected on the top surface of the two plates 21 on both sides of the fixing base 20.
  • the limit cover 50 is designed to have a shape that is wide in the middle along the axial direction and narrow at both ends, and the limit cover 50 is limited in the axial direction by matching the middle wide portion with the two side plates 21 of the fixing base 20. In the upper movement, narrow portions at both ends are erected on the top surfaces of both sides of the fixing base 20 and can cooperate with the elastic hook 52 to limit the movement of the limit cover 50 in the up-down direction.
  • a stepped opening 55 is provided in the middle of the limit cover 50 with a narrow opening 51 at both ends and a wide opening 53 at the middle, and the ladder tape 40 is wound. Open on the ladder belt holder 50 stepwise A part corresponding to the wide mouth 55 of the mouth 55.
  • the ladder belt 40 is wound around the portion corresponding to the wide opening 55 on the ladder belt holder 50, so that the movable range of the ladder belt 40 can be limited to the distance from the ladder belt holder 50 and the fixing base 20. In the area farther away from the connection, the ladder strap 40 will not be caught in the gap between the ladder strap holder 30 and the fixing seat 20.
  • the distance between the inner wall of the section corresponding to the narrow opening 51 at both ends of the stepped opening 55 and the top outer wall of the ladder belt holder 30 is smaller than that The distance between the inner wall of the section cover 50 corresponding to the middle wide section 53 of the stepped opening 55 and the top outer wall of the ladder belt holder 30. Because the distance between the two ends of the limit cover and the outer wall of the top of the ladder belt holder 30 is small, the range of movement of the ladder belt 40 can be better limited to the distance between the connection between the ladder belt holder 50 and the fixing base 20 In this area, the ladder strap 40 is effectively prevented from getting caught in the gap between the ladder strap holder 30 and the fixing base 20.
  • the ladder belt holder 30 is further provided with a shaft hole 32 provided through both end surfaces, and a driving shaft 60 for driving the rotation of the ladder belt holder 30 is
  • the shaft hole 32 passes through and is relatively fixed in a circumferential direction with a wall of the shaft hole 32.
  • the driving shaft 60 is inserted into the ladder belt holder 30, and its transmission efficiency is high and the transmission synchronization is good, so that the blades can be flipped quickly.

Abstract

一种百叶窗帘的梯带装置，包括固定于百叶窗帘的上梁（10）内且整体呈U形的固定座（20）、两端对应架设于固定座（20）的两侧板（21）上的梯带固定器（30）、顶端穿过所述固定座（20）并卷绕于所述梯带固定器（30）上的梯带（40）和扣合于固定座（20）顶端部的限位盖（50），所述限位盖（50）的内壁与梯带固定器（40）顶部外壁相距预定距离形成梯带限位空间；通过在固定座（20）顶端部扣合设置限位盖（50），由所述限位盖（50）的内壁与梯带固定器（30）顶部外壁相距预定距离形成梯带限位空间，从而在梯带（40）松弛时可以有效限制梯带（40）活动空间，保持梯带（40）与梯带固定器（30）的良好贴合，尤其是可以很好地避免梯带（40）卡入梯带固定器（30）和固定座（20）之间的间隙内，而使得后续使用过程中，梯带（40）始终能很好地同步活动，使得与梯带（40）相连的叶片翻转控制精准。

Description

百叶窗帘的梯带装置
技术领域
[0001] 本发明实施例涉及百叶窗帘技术领域， 特别是涉及一种百叶窗帘的梯带装置。
背景技术
[0002] 百叶窗帘通过梯带来带动叶片旋转以实现窗帘的启闭， 百叶窗帘的上梁中借助 于呈 U形的固定座安装有梯带固定器， 现有的梯带固定器主体呈横置的筒体， 其 侧壁上开设有固定槽， 梯带顶端的末端固定于固定槽内后再在梯带固定器上卷 绕几圈， 然后向下穿过固定座和上梁而伸出与各叶片依次连接， 所述梯带固定 器再与驱动轴共轴固定连接。 当操作者手动操作或电机驱动而促使驱动轴旋转 时， 带动梯带固定器同步旋转， 而使梯带实现相应方向上的收卷进而带动叶片 旋转对应角度从而打开或闭合。 在使用过程中， 有时需要将所有叶片全部上拉 至窗帘顶部， 此时， 梯带将会处于松弛状态而与梯带固定器不能很好地贴合， 此时， 梯带容易活动而卡入梯带固定器与固定座之间的缝隙中， 而致使后续使 用过程中梯带不能很好地实现同步活动， 叶片翻转控制不灵活。
技术问题
[0003] 本发明实施例要解决的技术问题在于， 提供一种百叶窗帘的梯带装置， 能有效 保持梯带与梯带固定器的良好贴合。 问题的解决方案
技术解决方案
[0004] 为解决上述技术问题， 本发明实施例采用以下技术方案： 一种百叶窗帘的梯带 装置， 包括固定于百叶窗帘的上梁内且整体呈 U形的固定座、 两端对应架设于固 定座的两侧板上的梯带固定器、 顶端穿过所述固定座并卷绕于所述梯带固定器 上的梯带和扣合于固定座顶端部的限位盖， 所述限位盖的内壁与梯带固定器顶 部外壁相距预定距离形成梯带限位空间。
[0005] 进一步地， 所述限位盖的位于梯带固定器轴向上的两端分别架设于固定座的顶 面， 而限位盖的与梯带固定器轴向垂直的方向上的两端分别伸出弹性扣钩， 所 述弹性扣钩对应勾扣至上梁侧壁上而固定。
[0006] 进一步地， 所述限位盖整体呈沿轴向的中段宽而两端窄的形状， 所述限位盖中 段宽的部分的长度与固定座两侧板之间的间距相适配， 且以两端窄的部分架设 于固定座两侧顶面。
[0007] 进一步地， 所述限位盖中部还开设有靠两端为窄口而中段为宽口的阶梯状开口 ， 所述梯带卷绕于梯带固定器上与阶梯状开口的宽口相对应的部位。
[0008] 进一步地， 所述限位盖对应于阶梯状开口两端窄口的区段的内壁与所述梯带固 定器顶部外壁的间距小于所述限位盖对应于阶梯状开口中段宽口的区段的内壁 与所述梯带固定器顶部外壁的间距。
[0009] 进一步地， 所述梯带固定器上还设置有贯穿两端面设置的轴孔， 用于驱动所述 梯带固定器旋转的驱动轴自所述轴孔穿过并与所述轴孔孔壁在周向上相对固定 发明的有益效果
有益效果
[0010] 采用上述技术方案， 本发明实施例至少具有以下有益效果： 本发明实施例通过 在固定座顶端部扣合设置限位盖， 由所述限位盖的内壁与梯带固定器顶部外壁 相距预定距离形成梯带限位空间， 从而在梯带松弛时可以有效限制梯带活动空 间， 保持梯带与梯带固定器的良好贴合， 尤其是可以很好地避免梯带卡入梯带 固定器和固定座之间的间隙内， 而使得后续使用过程中， 梯带始终能很好地同 步活动， 使得与梯带相连的叶片翻转控制精准。
对附图的简要说明
附图说明
[0011] 图 1是本发明百叶窗帘的梯带装置的一个可选实施例的分解状态示意图。
[0012] 图 2是本发明百叶窗帘的梯带装置的一个可选实施例的立体剖视结构示意图。
[0013] 图 3是本发明百叶窗帘的梯带装置的一个可选实施例的横截面示意图。
[0014] 图 4是本发明百叶窗帘的梯带装置的一个可选实施例的纵截面示意图。
发明实施例 本发明的实施方式
[0015] 下面结合附图和具体实施例对本发明作进一步详细说明。 应当理解， 以下的示 意性实施例及说明仅用来解释本发明， 并不作为对本发明的限定， 而且， 在不 冲突的情况下， 本发明中的实施例及实施例中的特征可以相互结合。
[0016] 如图 1至图 4所示， 本发明实施例提供的一种百叶窗帘的梯带装置， 包括固定于 百叶窗帘的上梁 10内且整体呈 U形的固定座 20、 两端对应架设于固定座 20的两侧 板 21上的梯带固定器 30、 顶端穿过所述固定座 20并卷绕于所述梯带固定器 30上 的梯带 40和扣合于固定座 20顶端部的限位盖 50, 所述限位盖 50的内壁与梯带固 定器 40顶部外壁相距预定距离形成梯带限位空间。
[0017] 本发明实施例通过在固定座 20顶端部扣合设置限位盖 50， 由所述限位盖 50的内 壁与梯带固定器 30顶部外壁相距预定距离形成梯带限位空间， 从而在梯带 40松 弛时可以有效限制梯带 40活动空间， 保持梯带 40与梯带固定器 30的良好贴合， 尤其是可以很好地避免梯带 40卡入梯带固定器 30和固定座 20之间的间隙内， 而 使得后续使用过程中， 梯带 40始终能很好地同步活动， 使得与梯带 40相连的叶 片 （图未示出） 翻转控制精准。
[0018] 在本发明另一个可选实施例中， 所述限位盖 50的位于梯带固定器 30轴向上的两 端分别架设于固定座 20的顶面， 而限位盖 50的与梯带固定器 30轴向垂直的方向 上的两端分别伸出弹性扣钩 52, 所述弹性扣钩 52对应勾扣至上梁 10侧壁上而固 定。 本实施例中采用弹性扣钩 52来与上梁 10配合而将限位盖 50定位扣合于固定 座 20的顶端， 安装操作方便快捷。
[0019] 在本发明又一个可选实施例中， 所述限位盖 50整体呈沿轴向的中段宽而两端窄 的形状， 所述限位盖 50中段宽的部分的长度与固定座 20两侧板 21之间的间距相 适配， 且以两端窄的部分架设于固定座 20两侧板 21的顶面。 本实施例通过将限 位盖 50设计为整体呈沿轴向的中段宽而两端窄的形状， 通过中段宽的部分与固 定座 20的两侧板 21配合而限定限位盖 50在轴向上的活动， 两端窄的部分架设于 固定座 20两侧顶面而能与弹性钩 52配合限定限位盖 50在上下方向上的活动。
[0020] 在本发明又一个可选实施例中， 所述限位盖 50中部还开设有靠两端为窄口 51而 中段为宽口 53的阶梯状开口 55， 所述梯带 40卷绕于梯带固定器 50上与阶梯状开 口 55的宽口 55相对应的部位。 通过形成阶梯状开口 55， 梯带 40卷绕于梯带固定 器 50上的与宽口 55对应的部位， 而可以将梯带 40的活动范围限定在离梯带固定 器 50与固定座 20的连接处较远的区域内， 梯带 40不会卡入梯带固定器 30和固定 座 20之间的间隙内。
[0021] 在本发明又一个可选实施例中， 所述限位盖 50对应于阶梯状开口 55两端窄口 51 的区段的内壁与所述梯带固定器 30顶部外壁的间距小于所述限位盖 50对应于阶 梯状开口 55中段宽口 53的区段的内壁与所述梯带固定器 30顶部外壁的间距。 由 于限位盖两端与梯带固定器 30顶部外壁之间的间距小， 也可更好地将梯带 40的 活动范围限定在离梯带固定器 50与固定座 20的连接处较远的区域内， 有效避免 梯带 40卡入梯带固定器 30和固定座 20之间的间隙内。
[0022] 在本发明另一个可选实施例中， 所述梯带固定器 30上还设置有贯穿两端面设置 的轴孔 32, 用于驱动所述梯带固定器 30旋转的驱动轴 60自所述轴孔 32穿过并与 所述轴孔 32孔壁在周向上相对固定。 本实施例将驱动轴 60穿设于梯带固定器 30 中， 其传动效率高及传动的同步性好， 使叶片翻转快捷。
[0023] 上面结合附图对本发明的实施例进行了描述， 但是本发明并不局限于上述的具 体实施方式， 上述的具体实施方式仅仅是示意性的， 而不是限制性的， 本领域 的普通技术人员在本发明的启示下， 在不脱离本发明宗旨和权利要求所保护的 范围情况下， 还可做出很多形式， 这些均属于本发明的保护之内。

Claims

权利要求书
[权利要求 1] 一种百叶窗帘的梯带装置， 包括固定于百叶窗帘的上梁内且整体呈 u 形的固定座、 两端对应架设于固定座的两侧板上的梯带固定器和顶端 穿过所述固定座并卷绕于所述梯带固定器上的梯带， 其特征在于： 所 述梯带装置还包括扣合于固定座顶端部的限位盖， 所述限位盖的内壁 与梯带固定器顶部外壁相距预定距离形成梯带限位空间。
[权利要求 2] 如权利要求 i所述的百叶窗帘的梯带装置， 其特征在于， 所述限位盖 的位于梯带固定器轴向上的两端分别架设于固定座的顶面， 而限位盖 的与梯带固定器轴向垂直的方向上的两端分别伸出弹性扣钩， 所述弹 性扣钩对应勾扣至上梁侧壁上而固定。
[权利要求 3] 如权利要求 2所述的百叶窗帘的梯带装置， 其特征在于， 所述限位盖 整体呈沿轴向的中段宽而两端窄的形状， 所述限位盖中段宽的部分的 长度与固定座两侧板之间的间距相适配， 且以两端窄的部分架设于固 定座两侧顶面。
[权利要求 4] 如权利要求 3所述的百叶窗帘的梯带装置， 其特征在于， 所述限位盖 中部还开设有靠两端为窄口而中段为宽口的阶梯状开口， 所述梯带卷 绕于梯带固定器上与阶梯状开口的宽口相对应的部位。
[权利要求 5] 如权利要求 4所述的百叶窗帘的梯带装置， 其特征在于， 所述限位盖 对应于阶梯状开口两端窄口的区段的内壁与所述梯带固定器顶部外壁 的间距小于所述限位盖对应于阶梯状开口中段宽口的区段的内壁与所 述梯带固定器顶部外壁的间距。
[权利要求 6] 如权利要求 1所述的百叶窗帘的梯带装置， 其特征在于， 所述梯带固 定器上还设置有贯穿两端面设置的轴孔， 用于驱动所述梯带固定器旋 转的驱动轴自所述轴孔穿过并与所述轴孔孔壁在周向上相对固定。
PCT/CN2018/088825 2018-05-29 2018-05-29 百叶窗帘的梯带装置 WO2019227303A1 (zh)

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