WO2012162860A1 - 多级传动汽车安全拉紧装置 - Google Patents

多级传动汽车安全拉紧装置 Download PDF

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Publication number
WO2012162860A1
WO2012162860A1 PCT/CN2011/001137 CN2011001137W WO2012162860A1 WO 2012162860 A1 WO2012162860 A1 WO 2012162860A1 CN 2011001137 W CN2011001137 W CN 2011001137W WO 2012162860 A1 WO2012162860 A1 WO 2012162860A1
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WO
WIPO (PCT)
Prior art keywords
handle
base
pawl
transmission
shaft
Prior art date
Application number
PCT/CN2011/001137
Other languages
English (en)
French (fr)
Inventor
陈伟国
邓伟
李建标
Original Assignee
宁波旭力金属制品有限公司
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 宁波旭力金属制品有限公司 filed Critical 宁波旭力金属制品有限公司
Priority to EP11867004.1A priority Critical patent/EP2695771B1/en
Priority to CA2816463A priority patent/CA2816463C/en
Priority to US13/991,276 priority patent/US9227550B2/en
Publication of WO2012162860A1 publication Critical patent/WO2012162860A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P7/00—Securing or covering of load on vehicles
    • B60P7/06—Securing of load
    • B60P7/08—Securing to the vehicle floor or sides
    • B60P7/0823—Straps; Tighteners
    • B60P7/083—Tensioning by repetetive movement of an actuating member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J7/00—Luggage carriers
    • B62J7/08—Equipment for securing luggage on carriers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/21—Strap tighteners
    • Y10T24/2102—Cam lever and loop
    • Y10T24/2117—Strap tighteners

Definitions

  • Multi-stage transmission car safety tensioning device Multi-stage transmission car safety tensioning device
  • the invention relates to an automobile safety tensioning device which can be used for various kinds of automobiles, trucks, trailers and motorcycles, and can be conveniently bundled and fixed. Background technique
  • the car safety tensioning device is usually composed of a tensioning device main body, a long strap and a short strap.
  • the main part adopts the anti-reverse ratchet mechanism principle, and the active pawl is directly driven by the handle, and the active pawl pushes the ratchet, and the ratchet directly drives the main
  • the shaft is rotated to tighten the strap wound on the main shaft.
  • the stopping pawl prevents the ratchet from being reversed, so that the strap can maintain a certain tension and the goods are bundled and fixed.
  • binding force is relatively fixed, mainly depending on the length of the handle. If the binding force is too small, it is not enough to be tight. Cargo, which will cause traffic safety hazards, therefore, increasing the binding force is the direction of the industry's joint efforts.
  • the general method is to increase the length of the handle, that is, to lengthen the arm, so that the entire device can be long in size, high in cost, and inconvenient to carry, transport and operate.
  • Some tensioning devices are designed as folding handles or telescopic handles. Although they can be used for carrying and transporting short handles, they are operated with long handles, but the structure is complicated, the operation is inconvenient, and the cost is high. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a vehicle safety tensioning device which is completely new in structure and can easily obtain a large binding force for the above prior art.
  • the automobile safety tensioning device comprises a base assembly and a handle assembly, characterized in that the base assembly and the handle assembly are coupled by a multi-stage transmission assembly, the multi-stage transmission assembly a drive shaft including a handle for pivoting the base of the base assembly and the handle assembly, and a main rotating shaft fixed to the base for winding the long strap, the transmission shaft is fixed with a transmission wheel, and the transmission wheel passes through the base assembly and the handle assembly
  • the multi-stage transmission assembly a drive shaft including a handle for pivoting the base of the base assembly and the handle assembly, and a main rotating shaft fixed to the base for winding the long strap
  • the transmission shaft is fixed with a transmission wheel
  • the transmission wheel passes through the base assembly and the handle assembly
  • the transmission wheel is a ratchet
  • the handle assembly comprises an active pawl mounted on the handle to cooperate with the ratchet and an active pawl spring acting on the active pawl, the ratchet being pushed by the active pawl Achieve the rotation state required for bundling.
  • the base assembly includes a stop pawl mounted on the base and a stop pawl spring acting on the stop pawl.
  • the stopping pawl reversely locks the driving wheel by the action of the stopping pawl spring, so as to realize the non-rotating state required for the driving wheel to lock.
  • the active pawl mounted on the handle and the stopping pawl mounted on the base are respectively located on the same side of the transmission shaft when the handle is not opened; the front part of the handle assembly of the handle assembly is capable of pushing the locking pawl
  • the upper edge of the two side walls of the base of the base assembly is formed with a release groove for the active pawl to be trapped, and the cam-shaped front portion and the release groove realize the idle state required for the ratchet release.
  • the multi-stage transmission assembly is a two-stage transmission mechanism, and the second-stage transmission mechanism further includes a driving gear fixed coaxially with the ratchet, and a driven gear fixed to the main rotating shaft and meshing with the driving gear.
  • the ratchet and the driving gear on the transmission shaft are separated by a gasket which is simultaneously mounted on the main shaft and the transmission shaft, and has a through hole through which the main shaft and the transmission shaft pass.
  • the multi-stage transmission component is a one-stage or more transmission mechanism, and the transmission mechanism further comprises a driving gear fixed coaxially with the ratchet wheel, the main rotating shaft is provided with a final-stage driven gear; the driving gear and the lower-stage passive gear mesh with each other, the middle
  • the stage driven gear is fixed on the intermediate stage drive shaft; the final stage driven gear meshes with the upper stage driven gear; and the intermediate set drive shaft is mounted on the base of the base assembly.
  • the handle of the handle assembly is composed of a combination of two handle side pieces through a handle fixing piece and a handle fixing shaft, and the two handle side pieces are correspondingly provided with holes for setting the transmission shaft and the active pawl; the handle is fixed There are three through holes on the sheet for the three pins extending at the back of the active pawl to pass through, wherein the two pins on the side of the active pawl pass through the corresponding through holes and are connected with a handle, and the middle pin sleeve
  • the active pawl spring described above passes through the corresponding intermediate through hole.
  • the base of the base assembly is composed of two base side pieces through a combination of a base fixing piece and a base fixing shaft, and the two base side pieces are correspondingly provided with holes for setting the main rotating shaft, the transmission shaft and the stopping pawl.
  • the base fixing piece is provided with a through hole for extending through a pin extending at the rear of the stopping pawl; the stopping pawl spring is sleeved on the pin of the rear part of the stopping pawl, and The two ends of the spring are respectively mounted on the base fixing piece and the stopping pawl; the two side pieces of the base are further provided with bolts and nuts for connecting the short straps.
  • the handle assembly is pushed to drive the active pawl, the active ratchet drives the ratchet to rotate, and the ratchet rotates to drive the drive shaft to rotate, and the drive shaft drives the drive gear to rotate; since the gears mesh with each other, the drive gear drives the driven gear to the opposite The direction is rotated, and finally the main shaft is driven to tighten the binding band.
  • the invention has the advantages that: due to the multi-stage transmission, the small force applied to the handle is finally converted, and finally a considerable binding force can be obtained on the binding belt, and the Reduce the number of transmission stages, change the transmission ratio of each stage of the transmission, and obtain different binding forces when applying the same handle force.
  • FIG. 1 is an exploded view of a first embodiment of the present invention
  • Figure 2 is a perspective view of a first embodiment of the present invention
  • Figure 3 is a cross-sectional view showing a first embodiment of the present invention
  • Figure 4 is an outline view (front view) of the first embodiment of the present invention.
  • Figure 5 is an outline view (top view) of the first embodiment of the present invention.
  • Figure 6 is a perspective view of a transmission member according to Embodiment 1 of the present invention.
  • Figure 7 is a schematic diagram of a transmission according to a first embodiment of the present invention.
  • 8a, 8b, and 8c are schematic diagrams showing the operation process of the first embodiment of the present invention.
  • FIG. 9 is a schematic structural view of a third embodiment of the present invention. detailed description
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the vehicle safety tensioning device shown in Figures 1, 2, 3, 4, and 5 includes a base assembly 1, a handle assembly 2, and a multi-stage transmission assembly 3, wherein:
  • the base assembly 1 includes a base, a stopping pawl 10, and a locking pawl spring 11 and the like.
  • the base is formed by two base side panels 4 of the same structure, which are coupled through the base fixing piece 7 and the base fixing shaft 6 and the like.
  • the base side panels form the two side walls of the base as described in claim 4.
  • the two side panels 4 are provided with holes for mounting the main rotating shaft 28, the stopping pawl 10 and the plurality of transmission shafts.
  • the upper edges of the side portions 4 of the two bases are undulatingly concave and convex, and a release groove 33 for trapping the active pawl 14 is formed.
  • the base fixing piece 7 and the stopping pawl 10 are respectively inserted obliquely upward on the base by inserting the two sides into the corresponding holes on the side plate 4 of the base, and the upward end of the stopping pawl 10 faces the transmission shaft to fit A ratchet 23 on the drive shaft 25.
  • the rear portion of the retaining pawl 10 has a rearwardly extending pin for arranging the retaining pawl spring 11.
  • the base fixing piece 7 has an upwardly folded baffle at the rear, and a through hole is formed in the baffle for the pins on the stopping pawl 10 to pass through.
  • the stopping pawl spring 11 is sleeved on the pin of the stopping pawl 10, and the two ends thereof are respectively placed on the baffle of the stopping pawl 10 and the fixing piece 7, so that the stopping pawl 10 is always driven by the action of the spring force.
  • the stopping pawl 10 engages with the ratchet on the ratchet 23 (as shown in FIG. 8a) to prevent the ratchet 23 from being reversed, so that the strap can maintain a certain tension, and the cargo is held.
  • a bolt 8 is attached to the rear end of the base. The bolt 8 passes through the hole in the side panel 4 of the base and is locked by a nut 9.
  • the short strap 32 is attached to the bolt 8.
  • the handle assembly 2 includes a handle, an active pawl 14 and an active pawl spring 17 and the like.
  • the handle is formed by coupling the handle side piece 13 of the same structure through the handle fixing piece 19 and the handle fixing shaft 18 and the like.
  • the two handle side sheets 13 are provided with holes for mounting the hole 21 of the transmission shaft 25 and the active pawl 14.
  • the front portion of the handle side panel 13 has a cam shape 22 through which the locking pawl 10 can be pushed away from the ratchet wheel 23.
  • the handle fixing piece 19 and the active pawl 14 are respectively inserted into the corresponding holes on the side piece 13 through the two sides, and are disposed on the handle, and the end of the active pawl 14 faces the transmission shaft 25 to correspond to the ratchet mounted on the transmission shaft. twenty three.
  • the rear of the active pawl 14 has three rearwardly extending pins, correspondingly at the rear of the hand
  • the shank fixing piece 19 has a downwardly bent baffle, and the baffle is formed with three through holes corresponding to the prongs on the active pawl 14, wherein the two prongs on the side of the active detent pass through the corresponding through holes and
  • the handles 15 are connected by rivets 16, and the intermediate pins are sleeved with the active pawl springs 17 and then passed through the corresponding intermediate through holes, so that the two ends of the active pawl springs 17 are respectively placed on the flaps of the active pawl 14 and the handle fixing piece 19.
  • Upper, the active pawl 14 is always urged toward the ratchet 23 by the action of the spring 17.
  • a handle 20 is also provided at the end of the handle. In this embodiment, when the handle is closed, the active pawl 14 on the same and the pawl 10 on the base are on the same side of the drive shaft 25.
  • the multi-stage transmission assembly of this embodiment is a two-stage transmission mechanism, as shown in FIG. 6, including a ratchet 23, a driving gear 24, a transmission shaft 25, a main rotating shaft 28, a driven gear 27, and the like, wherein the main rotating shaft 28 is mounted on
  • the main shaft hole 5 of the base is composed of two semi-circular shafts, and the long strap 31 is wound around the main shaft 28.
  • the driven gear 27 has two semi-circular holes for the two semi-circular shafts to pass through.
  • the two driven gears 27 are respectively mounted at both ends of the main rotating shaft 28, and are respectively located outside the side panel 4 of the base.
  • the transmission shaft 25 is located behind the main rotating shaft 28, and is disposed in parallel with the main rotating shaft 28.
  • the base and the handle are provided with holes 12 and 21 through which the transmission shaft can pass.
  • the transmission shaft 25 passes through the corresponding hole and is limited by the pin 30. Bit.
  • the base and the handle are pivotally connected by the drive shaft 25 to rotate the handle relative to the base.
  • the two ends of the transmission shaft 25 are respectively provided with a ratchet 23 and a driving gear 24, wherein the ratchet 23 corresponds to the active pawl 14 and the stopping pawl 10, and the driving gear 24 corresponds to the driven gear 27 to mesh with the driven gear 27.
  • the ratchet 23 and the driving gear 24 are respectively separated by a spacer 26 which is sleeved on the main rotating shaft 28 and the transmission shaft 25, and is provided with a hole through which the main rotating shaft 28 and the transmission shaft 25 pass. .
  • the ratchet 23 is rotated by the handle assembly 2, and then the transmission shaft 25 is rotated by the ratchet 23, and the driving gear 24 is fixed to the transmission shaft 25, thereby also accompanying the transmission shaft. 25-rotation, the driving gear 24 meshes with the driven gear 27, thereby driving the driven gear 27 to rotate in the opposite direction, and the driven gear 27 is fixed on the main rotating shaft 28, thereby driving the main rotating shaft 28 to rotate, and the main rotating shaft 28 is rotated.
  • the long strap 31 is wound around the main shaft 28. In this way, the handle is repeatedly operated, and the strap can be tightened to achieve the purpose of tightening the goods.
  • Figure 8a is the locked position.
  • a force is applied to the handle assembly 2, and the active pawl 14 connected thereto pushes the ratchet 23 to rotate, the ratchet 23 drives the drive shaft 25 to rotate, and the drive shaft 25 drives the drive gear 24 to rotate in the same direction.
  • the driving gear 24 drives the driven gear 27 meshing with it to rotate in the opposite direction, thereby driving the main rotating shaft 28 to rotate, winding the long strap 31 around the main rotating shaft 28, and repeatedly operating the handle to obtain the required binding force and bundling the goods. fixed.
  • the handle assembly 2 is closed to the locked position, as shown in Fig. 8a, at this time, the pawl 10 is engaged with the ratchet on the ratchet 23, and the ratchet 23 is not rotatable.
  • the multi-stage transmission assembly adopts a multi-stage transmission mechanism of one or more stages, and more transmission pairs can be added between the first-stage transmission and the final-stage transmission as needed.
  • the transmission shaft in the first embodiment can be used as a first-stage transmission shaft, the upper shaft of the transmission shaft and the ratchet and the driving gear, and the driving gear mesh with the gear on the lower-stage transmission shaft.
  • the main shaft is a non-stage drive shaft to which a driven gear that meshes with a gear on the upper stage drive shaft is fixed.
  • the required bundling force can be obtained by adding a second, third or more stages of gear sets between the primary and the non-stage drives.
  • the intermediate stage drive shaft is located between the primary drive shaft and the unstaged drive shaft and can be mounted in a shaft bore that is preset to the base.
  • the ratchet is not used, but the driving gear is directly used as a ratchet (that is, the driving wheel in claim 1 is the driving gear), the active pawl and the stopping pawl.
  • the claws are in direct contact with the drive gear, eliminating the ratchet to achieve the same function.
  • the driving gear and the active ratchet and the stopping ratchet are mainly adapted to change, and the rest of the structure is basically the same as the previous embodiment, and therefore will not be described in detail.
  • the present invention can be variously modified in addition to the above embodiments, and is not limited to the above three schemes.
  • the transmission assembly as described above is geared.
  • the multi-stage transmission assembly of the present invention can also adopt other forms of gear transmission or sprocket transmission, as long as the first stage transmission shaft and the connection of the transmission wheel of the device are realized.
  • the force transmission between the undriven drive shafts with long straps can achieve the required binding force.
  • the position of the ratchet, the gear, the position of the active pawl and the passive pawl may be different from those shown in the drawings of the first embodiment, and it may be installed at different positions of the tensioning device, but still obtain The same function.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Package Frames And Binding Bands (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Transmission Devices (AREA)

Abstract

一种汽车安全拉紧装置，包括底座组件（1）与手柄组件（2），两组件通过多级传动组件（3）联接，该多级传动组件包含有用于枢接底座组件（1）的底座与手柄组件（2）的手柄的传动轴（25）和用于缠绕长绑带（31）的固定于底座上的主转轴（28），传动轴（25）上固定有传动轮（23），该传动轮（23）通过底座组件（1）和手柄组件（2）的作用而实现捆绑所需的转动状态、锁止所需的不转动状态以及释放所需的空转状态。由于采用多级传动，给手柄上施加的较小力经多次转换后，最终能在捆绑带上得到一个相当大的捆绑力，而增加或减少传动级数，改变多级传动的传动比，在施加相同手柄力的情况下可以得到不同大小的捆绑力。

Description

多级传动汽车安全拉紧装置
技术领域
本发明涉及一种用于各种汽车、货车、拖车、摩托车上， 能方便捆绑固定货物的汽 车安全拉紧装置。 背景技术
汽车安全拉紧装置通常由拉紧装置主机、长绑带和短绑带组成， 其中主机部分采用 防倒转的棘轮机构原理， 直接由手柄带动主动棘爪， 主动棘爪推动棘轮， 棘轮直接带动 主转轴， 从而将缠绕在主转轴上的绑带拉紧。 而止动棘爪防止棘轮倒转， 使绑带上能保 持一定的张力， 将货物捆绑固定。
根据力学相关原理， 当人手在手柄上施加一定力时， 在捆绑带上能得到一个较大的 捆绑力， 这个捆绑力相对固定， 主要取决于手柄的长度， 如果捆绑力太小不足以绑紧货 物， 会造成行车安全隐患， 因此， 增加捆绑力是业内共同努力的方向。
如果在手柄上施加的力相同， 需要增加捆绑力时，一般的方法为增加手柄长度， 即 加长力臂， 这样整个装置尺寸会很长， 成本高， 而且携带、 运输和操作都不方便。 也有 的拉紧装置设计为折叠式手柄或伸缩式手柄， 虽可以在携带和运输时用短柄， 而操作时 用长柄， 但结构复杂， 操作不便， 成本高。 发明内容
本发明所要解决的技术问题是针对上述现有技术提供一种结构全新的、能轻松获得 较大捆绑力的汽车安全拉紧装置。
本发明解决上述技术问题所采用的技术方案为： 该汽车安全拉紧装置， 包括底座组 件与手柄组件， 其特征是所述的底座组件和手柄组件通过多级传动组件联接， 该多级传 动组件包含有用于枢接底座组件的底座与手柄组件的手柄的传动轴和用于缠绕长绑带 的固定于底座上的主转轴， 传动轴上固定有传动轮， 该传动轮通过底座组件和手柄组件 的作用而实现捆绑所需的转动状态、 锁止所需的不转动状态以及释放所需的空转状态。
所述的传动轮为一棘轮，所述的手柄组件包括装在手柄上与棘轮配合的主动棘爪和 作用于主动棘爪上的主动棘爪弹簧，所述的棘轮通过主动棘爪的推动而实现捆绑所需的 转动状态。
所述的底座组件包括装在底座上的止动棘爪和作用于止动棘爪上的止动棘爪弹簧， 止动棘爪通过止动棘爪弹簧的作用而逆向卡制所述的传动轮，实现传动轮锁止所需的不 转动状态。
所述的装在手柄上的主动棘爪和装在底座上的止动棘爪在手柄未打开时分别位于 传动轴的同一侧； 所述的手柄组件的手柄前部呈可推动止动棘爪的凸轮状， 所述的底座 组件的底座两侧壁上缘成形有可供主动棘爪陷卡的释放槽， 由该凸轮状前部和释放槽实 现棘轮释放所需的空转状态。
所述的多级传动组件为一二级传动机构，该二级传动机构还包括与所述棘轮同轴固 定的主动齿轮， 以及固定于主转轴上与该主动齿轮啮合传动的被动齿轮。而传动轴上的 棘轮和主动齿轮通过一垫片隔开， 该垫片同时装在主转轴和传动轴上， 其上开有可供主 转轴和传动轴穿过的通孔。
所述的多级传动组件为一二级以上传动机构，该传动机构还包括与棘轮同轴固定的 主动齿轮， 主转轴设置有末级被动齿轮； 主动齿轮与下一级被动齿轮相互啮合， 中间级 被动齿轮固定在中间级传动轴上； 末级被动齿轮与上一级被动齿轮相互啮合； 所述的中 间组传动轴装在底座组件的底座上。
所述的手柄组件的手柄由两手柄侧片通过手柄固定片和手柄固定轴组合构成，两手 柄侧片上对应开有用于设置所述传动轴和所述主动棘爪的孔；所述的手柄固定片上设有 三个通孔， 可供延设在主动棘爪后部的三个插脚穿过， 其中主动棘爪边上的两插脚穿过 相应的通孔后与一拉手相连接， 中间的插脚套上所述的主动棘爪弹簧后穿过对应的中间 通孔。
所述的底座组件的底座由两底座侧片通过底座固定片和底座固定轴组合构成，两底 座侧片上对应开有用于设置所述主转轴、所述传动轴和所述止动棘爪的孔； 所述的底座 固定片上设有一通孔， 可供延设在止动棘爪后部的一插脚穿过； 所述的止动棘爪弹簧套 在止动棘爪后部的插脚上， 并弹簧的两头分别顶在底座固定片和止动棘爪上； 所述的两 底座侧片上还装有短绑带连接用的螺栓和螺母。
操作时， 推动手柄组件， 带动主动棘爪， 由主动棘爪带动棘轮转动， 而棘轮转动带 动传动轴转动， 而传动轴又带动主动齿轮转动； 由于齿轮相互啮合， 所以主动齿轮带动 被动齿轮往相反方向转动， 最终带动主转轴而将捆绑带缠紧。
与现有技术相比， 本发明的优点在于： 由于采用多级传动， 给手柄上施加的较小力 经多次转换后， 最终能在捆绑带上得到一个相当大的捆绑力， 而增加或减少传动级数， 改变各级传动的传动比， 在施加相同手柄力的情况下可以得到不同大小的捆绑力。 附图说明
图 1为本发明实施例一的分解图；
图 2为本发明实施例一的立体图； 图 3为本发明实施例一的剖视图；
图 4为本发明实施例一的外形图 (主视)；
图 5为本发明实施例一的外形图 (俯视)；
图 6为本发明实施例一的传动部件立体图；
图 7为本发明实施例一的传动原理图；
图 8a、 图 8b、 图 8c为本发明实施例一的操作过程示意图。
图 9为本发明实施例三的结构示意图。 具体实施方式
以下结合附图实施例对本发明作进一步详细描述。
实施例一：
如图 1、 2、 3、 4、 5所示的汽车安全拉紧装置， 包含有底座组件 1 , 手柄组件 2， 和多级传动组件 3， 其中：
底座组件 1包含有底座、止动棘爪 10以及止动棘爪弹簧 11等， 其中底座是由两相 同结构的底座侧片 4通过底座固定片 7和底座固定轴 6等联接而成 (该两底座侧片形成 权利要求 4中所述的底座两侧壁)。 在两底座侧片 4上除了设有用来安装固定片 7和固 定轴 6的孔外， 还设有用来安装主转轴 28、 止动棘爪 10及多个传动轴的孔。 另外， 两 底座侧片 4的上缘呈起伏的凹凸状， 并形成有一可供主动棘爪 14陷卡的释放槽 33。 底 座固定片 7和止动棘爪 10各自通过两侧部插入底座侧片 4上相应的孔后而斜向上装置 在底座上， 止动棘爪 10其向上的端部朝向传动轴， 以配合装在传动轴 25上的棘轮 23。 止动棘爪 10的后部有向后延伸的插脚， 用来套设止动棘爪弹簧 11。 底座固定片 7后部 有向上折起的挡板， 挡板上有一通孔， 可供止动棘爪 10上的插脚穿过。 止动棘爪弹簧 11套在止动棘爪 10的插脚上，其两头分别顶在止动棘爪 10和固定片 7的挡板上，使止 动棘爪 10通过弹簧力的作用而始终驱向于棘轮 23。 在货物捆绑完成， 手柄至合拢状态 时， 该止动棘爪 10与棘轮 23上的棘齿咬合 (如图 8a所示)， 以防止棘轮 23倒转， 使绑 带能保持一定的张力， 将货物捆绑固定住。 在底座的尾部装有一螺栓 8， 该螺栓 8穿过 两底座侧片 4上的孔后用一螺母 9锁紧。 短绑带 32即连接在该螺栓 8上。
手柄组件 2包含有手柄、 主动棘爪 14以及主动棘爪弹簧 17等， 手柄是由两相同结 构的手柄侧片 13通过手柄固定片 19和手柄固定轴 18等联接而成。在两手柄侧片 13上 除了设有用来安装固定片 19和固定轴 18的孔外，还设有用来安装传动轴 25的孔 21和 主动棘爪 14的孔。手柄侧片 13的前部呈凸轮状 22，通过该凸轮状的手柄前部可将止动 棘爪 10顶开， 使其脱离棘轮 23。 手柄固定片 19和主动棘爪 14各自通过两侧部插入侧 片 13上相应的孔后而装置在手柄上，主动棘爪 14的端部朝向传动轴 25， 以对应装在传 动轴上的棘轮 23。 主动棘爪 14的后部有三个向后延伸的插脚， 相应地位于其后部的手 柄固定片 19有一向下弯折的挡板，挡板上成形有三个与主动棘爪 14上的插脚对应的通 孔， 其中主动棘爪边上的两插脚穿过相应的通孔后与一拉手 15通过铆钉 16相连接， 中 间的插脚套上主动棘爪弹簧 17后穿过对应的中间通孔，使主动棘爪弹簧 17的两头分别 顶在主动棘爪 14和手柄固定片 19的挡板上，主动棘爪 14通过该弹簧 17的作用而始终 驱向于棘轮 23。 另在手柄的尾部装有把手 20。 本实施例， 在手柄合拢时， 其上的主动 棘爪 14和底座上的止动棘爪 10均处于传动轴 25的同一侧。
本实施例的多级传动组件为一二级传动机构， 它如图 6所示，包括有棘轮 23、主动 齿轮 24、传动轴 25、 主转轴 28和被动齿轮 27等， 其中主转轴 28装在底座的主转轴孔 5上， 它由两半圆形轴组合而成，长绑带 31缠绕在该主转轴 28上。主转轴 28装在底座 上后其两头通过销子 29组合并限位。被动齿轮 27上设有两个半圆形孔， 可供两半圆形 轴穿过。 两被动齿轮 27分别装在主转轴 28的两头， 且分别位于底座侧片 4的外侧。 传 动轴 25位于主转轴 28的后面， 与主转轴 28平行设置， 底座和手柄上均设有可供传动 轴穿过的孔 12、 21 , 传动轴 25穿过相应的孔后用销子 30限位。底座与手柄通过该传动 轴 25枢接于一起， 使手柄可相对底座转动。 传动轴 25的两头分别装有一棘轮 23和一 主动齿轮 24， 其中棘轮 23对应主动棘爪 14和止动棘爪 10， 主动齿轮 24对应被动齿轮 27， 与被动齿轮 27相啮合。 而棘轮 23与主动齿轮 24之间又分别通过一垫片 26相隔， 该垫片 26套在主转轴 28和传动轴 25上， 其上设有可供主转轴 28和传动轴 25穿过的 孔。
本二级传动机构传动时 (如图 7所示)，棘轮 23由手柄组件 2带动而转动，再由棘轮 23带动传动轴 25转动，主动齿轮 24固定于传动轴 25上，因而也随传动轴 25—起转动， 主动齿轮 24与被动齿轮 27相啮合， 因而带动被动齿轮 27往相反方向转动， 而被动齿 轮 27固定于主转轴 28上， 因而带动主转轴 28转动， 主转轴 28转动则可使长绑带 31 缠绕在主转轴 28上。 这样， 反复操作手柄， 可使绑带拉紧而达到绑紧货物的目的。
现结合图 8 a-图 8c所示， 对本发明拉紧装置使用时的动态过程描述如下： 如图 8a， 是锁止位置。
操作时， 如图 8b， 在手柄组件 2上施加力， 与之相连的主动棘爪 14推动棘轮 23 转动， 棘轮 23带动传动轴 25转动， 而传动轴 25带动主动齿轮 24往相同方向转动。 主 动齿轮 24带动与之相啮合的被动齿轮 27往相反方向转动， 从而带动主转轴 28转动， 将长绑带 31缠绕在主转轴 28上， 反复操作手柄， 可得到需要的捆绑力， 将货物捆绑固 定。
操作完成后， 将手柄组件 2合拢至锁止位置， 如图 8a， 此时的止动棘爪 10与棘轮 23上的棘齿咬合， 棘轮 23不可转动。
释放时， 将手柄组件 2打开， 如图 8c所示， 主动棘爪 14放置于底座侧片 4的释放 槽 33内， 同时手柄侧片 13的凸轮状 22前部将止动棘爪 10顶开， 使棘轮 23与两个棘 爪 10、 14都脱离， 可以倒转， 此时整个多级传动组件 3呈自由转动的状态， 从而释放 长绑带 31上的张力。 实施例二：
与实施例一不同的是， 多级传动组件采用的是一二级以上的多级传动机构， 它在第 一级传动和末级传动之间可按需要增设更多的传动副。 具体可以如下实施： 将实施例一 中的传动轴作为一级传动轴， 传动轴上装置与棘轮和主动齿轮， 主动齿轮与下一级传动 轴上的齿轮相啮合。而主转轴作为未级传动轴， 其上固定有与上一级传动轴上的齿轮相 啮合的被动齿轮。通过在一级与未级传动之间增设第二、 第三或更多级的传动齿组， 可 以得到所需要的捆绑力。 中间级的传动轴介于一级传动轴与未级传动轴之间， 它们可装 在预设在底座上的轴孔内。 实施例三：
如图 9所示， 与前面两实施例不同的是不要棘轮， 而是直接把主动齿轮当作棘轮用 (也即权利要求 1中的传动轮为该主动齿轮)， 主动棘爪和止动棘爪直接与该主动齿轮接 触， 省掉棘轮达到相同的功能。 本实施例主要是将主动齿轮与主动棘轮、 止动棘轮要作 适应性的改变， 其余结构与前面实施例基本相同， 因此不再详述。 但本发明除了上述实施例所述外，还可以进行不同的改型，而并不局限于上述三种 方案。如前面所述的传动组件均采用齿轮传动的方式， 其实本发明的多级传动组件还可 以采用其它形式的齿轮传动或链轮传动，它只要实现装置有传动轮的第一级传动轴与连 接有长绑带的未级传动轴之间进行力的传递， 达到所需的捆绑力即可。 还有， 棘轮， 齿 轮的位置方向，主动棘爪、被动棘爪的位置方向也可以与实施例一各附图中所示的不同， 它可装置于拉紧装置的不同位置， 但仍能得到相同的功能。

Claims

权 利 要 求
1、一种多级传动汽车安全拉紧装置，包括底座组件 (1)与手柄组件 (2)，其特征在于： 所述的底座组件 (1)和手柄组件 (2)通过多级传动组件 (3)联接， 该多级传动组件 (3)包含有 用于枢接底座组件 (1)的底座与手柄组件 (2)的手柄的传动轴 (25)和用于缠绕长绑带 (31)的 固定于底座上的主转轴 (28)， 传动轴 (25)上固定有传动轮， 该传动轮通过底座组件 (1)和 手柄组件 (2)的作用而实现捆绑所需的转动状态、锁止所需的不转动状态以及释放所需的 空转状态。
2、 如权利要求 1所述的多级传动汽车安全拉紧装置， 其特征在于： 所述的传动轮 为一棘轮 (23);所述的手柄组件 (2)包括装在手柄上与该棘轮 (23)配合的主动棘爪 (14)和作 用于主动棘爪 (14)上的主动棘爪弹簧 (17), 所述的棘轮 (23)通过主动棘爪 (14)的推动而实 现捆绑所需的转动状态。
3、 如权利要求 1或 2所述的多级传动汽车安全拉紧装置， 其特征在于： 所述的底 座组件 (1)包括装在底座上的止动棘爪 (10)和作用于止动棘爪 (10)上的止动棘爪弹簧 (11)， 止动棘爪 (10)通过止动棘爪弹簧 (11)的作用而逆向卡制所述的传动轮，实现传动轮锁止所 需的不转动状态。
4、 如权利要求 3所述的多级传动汽车安全拉紧装置， 其特征在于： 所述的装在手 柄上的主动棘爪 (14)和装在底座上的止动棘爪 (10)在手柄未打开时分别位于传动轴 (25) 的同一侧； 所述的手柄前部呈可推动止动棘爪 (10)的凸轮状 (22)， 所述的底座两侧壁上 缘成形有可供主动棘爪 (14)陷卡的释放槽 (33)， 由该凸轮状 (22)前部和释放槽 (33)实现传 动轮释放所需的空转状态。
5、 如权利要求 2所述的多级传动汽车安全拉紧装置， 其特征在于： 所述的多级传 动组件 (3)为一二级传动机构， 该传动机构还包括有与所述棘轮 (23)同轴固定的主动齿轮 (24), 以及固定于主转轴 (28)上与该主动齿轮 (24)啮合传动的被动齿轮 (27)。
6、 如权利要求 2所述的多级传动汽车安全拉紧装置， 其特征在于： 所述的多级传 动机构为一二级以上传动机构， 该传动机构还包括有与棘轮 (23)同轴固定的主动齿轮 (24),主转轴 (28)上设置有末级被动齿轮 (27); 主动齿轮 (23)与下一级被动齿轮相互啮合， 中间级被动齿轮固定在中间级传动轴上；末级被动齿轮 (27)与上一级被动齿轮相互啮合； 所述的中间级传动轴装在底座上。
7、 如权利要求 4所述的多级传动汽车安全拉紧装置， 其特征在于： 所述的手柄组 件 (2)的手柄由两手柄侧片 (13)通过手柄固定片 (19)和手柄固定轴 (18)组合构成，两手柄侧 片 (13)上对应开有用于设置所述传动轴 (25)和所述主动棘爪 (14)的孔；所述的手柄固定片 (19)上设有三个通孔， 可供延设在主动棘爪 (14)后部的三个插脚穿过， 其中主动棘爪 (14) 边上的两插脚穿过相应的通孔后与一拉手 (15)相连接， 中间的插脚套上所述的主动棘爪 弹簧 (17)后穿过对应的中间通孔。
8、 如权利要求 7所述的多级传动汽车安全拉紧装置， 其特征在于： 所述的底座组 件 (1)的底座由两底座侧片 (4)通过底座固定片 (7)和底座固定轴 (6)组合构成， 两底座侧片 (4)上对应开有用于设置所述主转轴 (28)、所述传动轴 (25)和所述止动棘爪 (10)的孔；所述 的底座固定片 (7)上设有一通孔， 可供延设在止动棘爪 (10)后部的一插脚穿过； 所述的止 动棘爪弹簧 (11)套在止动棘爪 (10)后部的插脚上， 并弹簧的两头分别顶在底座固定片 (7) 和止动棘爪 (10)上； 所述的两底座侧片 (4)上还装有短绑带 (32)连接用的螺栓 (8)和螺母 (9)。
9、 如权利要求 5所述的多级传动汽车安全拉紧装置， 其特征在于： 所述的传动轴 (25)上的棘轮 (23)和主动齿轮 (24)通过一垫片 (26)隔开， 该垫片 (26)同时装在主转轴 (28) 和传动轴 (25)上， 其上开有可供主转轴 (28)和传动轴 (25)穿过的通孔。
PCT/CN2011/001137 2011-06-02 2011-07-11 多级传动汽车安全拉紧装置 WO2012162860A1 (zh)

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CA2816463C (en) 2015-05-05
CN102275539A (zh) 2011-12-14
CA2816463A1 (en) 2012-12-06
US9227550B2 (en) 2016-01-05
PL2695771T3 (pl) 2017-09-29
US20130247340A1 (en) 2013-09-26
EP2695771B1 (en) 2017-01-11
EP2695771A4 (en) 2015-11-11
EP2695771A1 (en) 2014-02-12

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