WO2012113289A1 - 旋转驱动力接收头和驱动组件 - Google Patents

旋转驱动力接收头和驱动组件 Download PDF

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Publication number
WO2012113289A1
WO2012113289A1 PCT/CN2012/071011 CN2012071011W WO2012113289A1 WO 2012113289 A1 WO2012113289 A1 WO 2012113289A1 CN 2012071011 W CN2012071011 W CN 2012071011W WO 2012113289 A1 WO2012113289 A1 WO 2012113289A1
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WO
WIPO (PCT)
Prior art keywords
driving
contact
end portion
bracket body
head
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PCT/CN2012/071011
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English (en)
French (fr)
Inventor
范文燚
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珠海天威飞马打印耗材有限公司
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Publication of WO2012113289A1 publication Critical patent/WO2012113289A1/zh

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/1642—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements for connecting the different parts of the apparatus
    • G03G21/1647—Mechanical connection means
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
    • G03G21/1839—Means for handling the process cartridge in the apparatus body
    • G03G21/1857—Means for handling the process cartridge in the apparatus body for transmitting mechanical drive power to the process cartridge, drive mechanisms, gears, couplings, braking mechanisms
    • G03G21/1864—Means for handling the process cartridge in the apparatus body for transmitting mechanical drive power to the process cartridge, drive mechanisms, gears, couplings, braking mechanisms associated with a positioning function

Definitions

  • the present invention relates to a rotary driving force receiving head and a driving assembly having such a rotational driving force receiving head which can be mounted at an end of the photosensitive drum to transmit a rotational driving force of the image forming apparatus.
  • the present application claims priority to Chinese Patent Application No. 201120045210.4, entitled “Rotary Driving Force Receiving Head and Drive Assembly", which is incorporated herein by reference. .
  • Electrophotographic image forming apparatuses include copying machines, laser printers, and the like.
  • a process cartridge inside the electrophotographic image forming apparatus there is usually a process cartridge inside the electrophotographic image forming apparatus, and the process cartridge can be mounted to and detached from the main assembly of the electrophotographic image forming apparatus.
  • a process cartridge prepared by integrally assembling at least one of a developing device, a charging device, and a cleaning device as a processing device into a casing.
  • the existing process cartridge includes the following types: a first process cartridge prepared by assembling a photosensitive drum and a unit composed of a developing device, a charging device, and a cleaning device in a cartridge; by integrally assembling the photosensitive drum and the charging device in the cartridge And a second process cartridge prepared; and a third process cartridge prepared by integrally assembling the photosensitive drum and two processing units composed of a charging device and a cleaning device.
  • the user himself can detachably mount the above process cartridge to the main assembly of the electrophotographic image forming apparatus. Therefore, the user can perform maintenance of the equipment without relying on professional service personnel, thereby improving the operability of the user for the maintenance of the electrophotographic image forming apparatus.
  • the above-described conventional process cartridge it is used to receive a rotational driving force from the apparatus main assembly to drive the photosensitive drum drive mechanism as follows.
  • a rotatable member for transmitting a driving force of the motor, and a non-circular torsion hole for transmitting a driving force of the motor.
  • the torsion hole is disposed at a central portion of the rotatable member, and is provided with a plurality of corner portions and has a A cross section in which the rotatable member rotates integrally.
  • a non-circular torsion projection is provided which is provided at one of the axial ends of the photosensitive drum and has a cross section provided with a plurality of corners.
  • Chinese invention patent CN200920238326.2 provides a photosensitive drum drive assembly comprising a gear and an axial adjustment assembly tightly coupled to one end of the photosensitive drum, the axial adjustment assembly including a first motion subassembly, a groove member and a central shaft member;
  • the groove member has upper and lower sliding grooves that are spatially perpendicular to each other, the first moving subassembly forming a relative sliding fit with the upper sliding groove in a first direction;
  • the central shaft member and the The gears have a common axis that forms a relatively sliding fit with the glide groove in a second direction; both the first direction and the second direction are perpendicular to the drum axis.
  • the first motion subassembly includes a rotary driving force receiving head extending outside the gear and an adjusting slider, and the rotating driving force receiving head is rotatably coupled to the adjusting slider about an axis thereof, the rotation A rotation limit pin rotatable about the axis is disposed between the driving force receiving head and the adjustment slider.
  • a first object of the present invention is to provide a rotary driving force receiving head capable of minimizing a dead center position when a machine is dropped and a process cartridge is taken out, and a problem of jamming between the rotary driving force receiving head and the driving head of the image forming apparatus is avoided. .
  • a second object of the present invention is to provide a drive assembly having the above-described rotational driving force receiving head.
  • a rotary driving force receiving head comprising a bracket body and a driving contact engageable with an imaging device driving head, the driving contact passing through a pivot and The rebound resetting member is coupled to the bracket body, and the driving contact forms a swingable engagement with the bracket body in the radial direction of the bracket body, and forms a cooperative engagement with the bracket body in the circumferential direction.
  • a further technical solution is that there are two driving contacts, and the pivot has two.
  • the bracket body includes an outer end portion, an intermediate connecting portion, a connecting plate and an inner end portion, and the outer end portion a first notch and a second notch on both sides; wherein a middle portion of the first driving contact is connected to the outer end portion at a first notch thereof through a first pivot, and a middle portion of the second driving contact passes through a second pivot
  • the shaft is coupled to the outer end at a second gap thereof, the first drive contact and the second drive contact being rotatable relative to the outer end about respective pivots.
  • the rebound resetting member is two tension springs, a lower portion of the first driving contact is connected to the connecting plate by a first tension spring, and a lower portion of the second driving contact is passed through a second tension spring Connected to the connecting plate.
  • an upper portion of the first drive contact has a first engagement slot engageable with an imaging device drive head
  • an upper portion of the second drive contact has a second engagement slot engageable with the imaging device drive head
  • a central surface of the outer end portion facing outward is formed with a concave spherical surface, and a curved surface is formed around the spherical surface.
  • the inner end portion has a sliding groove that penetrates in the radial direction.
  • the present invention adopts the following technical solution: providing a driving assembly that can cooperate with an imaging device driving head to transmit a rotational driving force, the driving assembly comprising: a gear having a fixed end; Passing through a central shaft member of the gear, the central shaft member forming a circumferentially interlocking engagement with the gear; a rotational driving force receiving head rotatable about an axis of the central shaft member and forming a circumferential direction with the central shaft member
  • the rotary driving force receiving head includes a bracket body and a driving contact engageable with the imaging device driving head; the driving contact is coupled to the bracket body by a pivot and a rebound resetting member, the driving The contact forms a swingable engagement with the bracket body in the radial direction of the bracket body, and a cooperation with the joint body is formed in the circumferential direction of the bracket body.
  • a further technical solution is that there are two driving contacts, and the pivot has two.
  • the bracket body includes an outer end portion, an intermediate connecting portion, a connecting plate and an inner end portion, and the outer end portion a first notch and a second notch on both sides; wherein a middle portion of the first driving contact is connected to the outer end portion at a first notch thereof through a first pivot, and a middle portion of the second driving contact passes through a second pivot
  • the shaft is coupled to the outer end at a second gap thereof, the first drive contact and the second drive contact being rotatable relative to the outer end about respective pivots.
  • the central shaft member is composed of a head portion and a rod portion, and the inner end portion is provided with a sliding groove extending in a radial direction, and the head portion is slidable in the sliding groove relative to the inner end portion Slide back and forth.
  • a central surface of the outer end portion facing outward is formed with a concave spherical surface, and a curved surface is formed around the spherical surface.
  • the driving contact of the rotary driving force receiving head is under the contact pressure of the driving head of the image forming apparatus during mounting to the image forming apparatus.
  • the inner side swings until the driving head of the image forming apparatus is moved from the non-working position to the working position, and the driving contact swings back to the original state under the action of the rebound resetting member, ensuring that the driving function is normally performed.
  • the drive contact swings to the outside under the action of the driving head of the image forming apparatus, so that the process cartridge is not blocked by the driving head of the image forming apparatus, and can be smoothly taken out.
  • the invention can minimize the dead zone position when the machine is dropped and the process cartridge is taken out, and the problem of jamming between the rotary driving force receiving head and the driving head of the image forming apparatus is avoided, so that the photosensitive drum can be driven safely and reliably.
  • the driving component of the invention is simple and convenient to assemble, and has stable structural performance.
  • the processing box constructed by using the driving component is stable, reliable in performance and stable in operation.
  • FIG. 1 is a schematic view showing the structure of a process cartridge to which a driving assembly of an embodiment of the present invention is applied.
  • Figure 2 is a schematic view showing the structure of the photosensitive drum of Figure 1.
  • FIG. 3 is a schematic structural view of the drive assembly of FIG. 2.
  • Figure 4 is a cross-sectional view of the drive assembly of Figure 3.
  • Figure 5 is an exploded perspective view of the drive assembly of Figure 3.
  • Figure 6 is a schematic view showing the structure of the drive assembly shown in Figure 3 after the gear is hidden.
  • Figure 7 is an exploded perspective view of the rotary driving force receiving head among the drive assemblies shown in Figure 3.
  • Fig. 8 is a view showing the structure of a holder body among the rotary driving force receiving heads shown in Fig. 7.
  • Figure 9 is a schematic view showing the structure of a central shaft member among the drive assemblies shown in Figure 5.
  • Figure 10 is a schematic view showing the structure of a gear among the drive assemblies shown in Figure 5.
  • 11a-11c are schematic diagrams showing the cooperation process of the driving assembly and the printer driving head of the process cartridge shown in FIG.
  • 12a to 12b are schematic diagrams showing the cooperation process of the driving component and the printer driving head during the offline process of the process cartridge shown in FIG. 1.
  • a process cartridge 10 of the present invention includes a cartridge body 101 and a photosensitive drum 20 rotatably mounted in the cartridge body 101.
  • the photosensitive drum 20 includes a drum main body 201 and a driving assembly 1 fixed at one axial end of the drum main body 201.
  • the drum main body 201 has a photosensitive layer on the circumferential surface thereof, and the driving assembly 1 is for receiving an image forming apparatus (such as a printer).
  • the rotational driving force of the driving head 7 is transmitted to the drum main body 201, and the drum main body 201 is rotated about its axis by the rotational driving force.
  • the photosensitive drum is also substantially similar to the photosensitive drum of the prior art, and the difference lies mainly in the construction of one axial end of the photosensitive drum.
  • the drive assembly is therefore described below primarily with respect to embodiments of the drive assembly.
  • the drive assembly 1 includes a gear 2, a center shaft member 3, a rotary driving force receiving head 4, a compression spring 5, a limit pin 6, and the like.
  • the inner end of the gear 2 is a fixed end 21 by which the gear 2 can be fixed to one end of the drum main body 201.
  • the cross-sectional shape of the stem portion 32 of the center shaft member 3 is waist-shaped, and the rod portion 32 passes axially through a through-hole in the gear 2 which is also waist-shaped and substantially uniform in size, thereby causing the central shaft member 3 and the gear A circumferential linkage is formed between the two.
  • the center shaft member 3 is composed of a head portion 31 and a rod portion 32, and has a substantially T-shape.
  • the head 31 has a thin plate shape, and the cross-sectional shape of the rod portion 32 is also waist-shaped, but the cross-sectional area of the rod portion 32 is smaller than the area of the head portion 31.
  • the inner end of the rod portion 32 is provided with a pin hole 33 penetrating the rod portion 32, and the pin hole 33 is available for the limit pin 6 to pass through, and is axially restrained by the limit pin 6 to prevent the center shaft member 3 from the gear 2 Get out of the middle.
  • the rotary driving force receiving head 4 is coupled to the outer end of the center shaft member 3, and the rotational driving force receiving head 4 is rotatable about the axis of the center shaft member 3 by the action of the image forming apparatus driving head 7, thereby sequentially transmitting the rotational driving force To the central shaft member 3, the gear 2, and the drum body 201.
  • the compression spring 5 is fitted over the center shaft member 3 and sandwiched between the rotational driving force receiving head 4 and the gear 2.
  • the rotational driving force receiving head 4 includes a bracket body 41, a first driving contact 42, a second driving contact 43, a first tension spring 44, a second tension spring 45, and a first pivot 46. And a second pivot 47.
  • the bracket body 41 is composed of an outer end portion 411, an intermediate connecting portion 412, a connecting plate 413, and an inner end portion 414, and the four portions are integrally connected.
  • the outer end portion 411 has a substantially disk shape, and a concave spherical surface 417 is formed at a center position of the outwardly facing surface, and a cut surface 418 is formed around the spherical surface 417.
  • the first end of the outer end portion 411 has a first notch 415 and a second notch 416 respectively.
  • the middle portion of the first driving contact 42 is connected to the outer end portion 411 at the first notch 415 through the first pivot 46, and the second driving contact
  • the middle portion of the head 43 is connected to the outer end portion 411 at the second notch 416 by the second pivot 47, and the first drive contact 42 and the second drive contact 43 form a center symmetry with respect to the axis 48 of the rotational driving force receiving head 4.
  • the first drive contact 42 and the second drive contact 43 are each rotatable relative to the outer end 411 about a respective pivot.
  • first drive contact 42 is connected to the connecting plate 413 by the first tension spring 44
  • second drive contact 43 is connected to the connecting plate 413 by the second tension spring 45.
  • the first drive contact 42 and the second drive contact 43 are mounted on the bracket body 41 in such a manner as to be swingable left and right in the non-driving direction (ie, the radial direction of the rotational driving force receiving head 4) in the driving direction ( That is, the circumferential direction of the rotational driving force receiving head 4 does not swing.
  • the first driving contact 42 and the second driving contact 43 are in a vertical position under the pulling of the first tension spring 44 and the second tension spring 45, respectively, in the case where the external force is not received (ie, the driving force receiving head along the rotational driving force) 4 axial extension).
  • the upper portion of the first drive contact 42 has a first engagement groove 421, and the upper portion of the second drive contact 43 has a second engagement groove 431.
  • the intermediate connecting portion 412 has a cylindrical shape, and the connecting plate 413 is a circular plate.
  • the inner end portion 414 is a slotted cylinder having a radially extending slot 4141.
  • the slot 4141 has a substantially "convex" cross section, and the head 31 of the central shaft member 3 can be The inside of the chute 4141 slides back and forth in the radial direction with respect to the inner end portion 414.
  • the outer circumferential surface of the gear 2 has a transmission ring gear 24, and the gear 2 is internally provided with a partition 25 perpendicular to the axial direction and a gear chamber 27 located above the partition 25.
  • the central position of the partition 25 is provided.
  • An upwardly protruding positioning seat 23, the positioning seat 23 is provided with a waist hole 22 having a shape substantially equal to the cross-sectional shape of the rod portion 32 of the central shaft member 3, and the rod portion 32 can only be Axial movement is achieved within the waisted bore 22.
  • the circumferential side wall 26 of the gear chamber 21 provides a limit for the radial reciprocating translational movement of the rotational driving force receiving head 4.
  • FIG 11a to Figure 11c showing a schematic view of the operation process of the process cartridge (only the drive assembly 1) with the drive assembly 1 falling into the printer, the process cartridge falling into the printer in a direction Xa perpendicular to the axis of the drive assembly 1;
  • Figures 12a and 12b show a schematic view of the operation of the process cartridge with the drive assembly 1 removed from the printer, the process cartridge being detached from the printer in a direction Xb perpendicular to the drum axis.
  • the working process is as follows.
  • the first driving contact 42 swings back to the initial vertical state and is driven by the printer driving head 7 under the pulling action of the first tension spring 44.
  • the pin 71 is engaged, and after the end of the longitudinal shaft portion 72 of the printer driving head 7 is engaged with the spherical surface 417 of the bracket body 41, the assembly formed by the bracket body 41 and the central shaft member 3 is integrally along the Zb under the elastic force of the compression spring 5. Move in the direction so that the drive function works normally.
  • the printer driver head 7 When the printer driver head 7 is completely detached from the drive assembly 1, the first drive contact 42 is swung back to the initial vertical state by the pulling action of the first tension spring 44, and the assembly of the bracket body 41 and the central shaft member 3 Under the elastic force of the compression spring 5, the whole body moves in the Zb direction and returns to the initial state, thereby completing the offline operation of the process cartridge.
  • the limit pin can be implemented using other axial limit structures that are readily apparent to those skilled in the art.
  • the axial stop structure can be a separate member from the central shaft member or a member formed on the central shaft member. section.
  • the above-mentioned compression spring can also be replaced by other elastic members, such as a resilient plastic member structure that can be compressed; the cross-sectional shape of the rod portion of the central shaft member and the shape of the through hole on the gear partition are not limited to the waist.
  • the shape may also be any shape having two flat sides, such as a rectangular shape, a flat quadrangular shape, or the like, as long as the axial adjustment assembly can only be axially translated relative to the gear, and cannot be rotated and rotated about the axis with respect to the gear. Just fine.
  • the rotary driving force receiving head and the driving assembly of the present invention can be manufactured and used industrially, and when applied to the process cartridge, the dead spot position area when the machine is dropped and the process cartridge is taken out can be minimized, and the rotary driving force receiving head can be avoided.
  • a problem of jamming with the driving head of the image forming apparatus enables safe and reliable driving of the photosensitive drum.
  • the driving component of the invention is simple and convenient to assemble, and has stable structural performance.
  • the processing box constructed by using the driving component is stable, reliable in performance and stable in operation. Therefore, the present invention has industrial applicability.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Electrophotography Configuration And Component (AREA)

Abstract

本发明提供了一种旋转驱动力接收头(4)及驱动组件(1)，所述旋转驱动力接收头(4)包括可与成像设备驱动头配合的支架体(41)和驱动触头(42,43)，所述驱动触头(42,43)通过枢轴(46,47)和回弹复位件(44,45)连接于所述支架体(41)，所述驱动触头(42,43)在支架体(41)的径向上与该支架体(41)形成可相对其摆动的配合，在支架体(41)的周向上形成与其联动的配合。

Description

旋转驱动力接收头和驱动组件 技术领域
本发明涉及一种旋转驱动力接收头和具有这种旋转驱动力接收头的驱动组件，该驱动组件可安装在感光鼓的端部以传递成像设备的旋转驱动力。本申请要求于2011年02月22日提交中国专利局、申请号为201120045210.4、名称为“旋转驱动力接收头和驱动组件”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
背景技术
电子照相成像设备包括复印机、激光打印机以及类似设备。
　　电子照相成像设备内通常有一个处理盒，并且处理盒能够安装至电子照相成像设备的主组件上并从主组件上拆卸。例如，通过将一个带有感光鼓、以及作为处理装置的显影装置、充电装置和清洁装置中的至少一个整体地装配到盒体中而制备的处理盒。
　　现有处理盒包括以下种类：通过将感光鼓和由显影装置、充电装置及清洁装置组成的整体装配在盒中而制备的第一种处理盒；通过将感光鼓以及充电装置整体装配在盒中而制备的第二种处理盒；以及通过整体装配感光鼓以及由充电装置和清洁装置组成的两个处理单元而制备的第三种处理盒。
　　使用者自己能够将上述处理盒以可拆卸方式安装至电子照相成像设备主组件。因此，使用者可以进行设备的维护，而无需依赖专业的服务人员，进而，改进了用户对电子照相成像设备维护的可操作性。在上述传统的处理盒中，用于从设备主组件接收旋转驱动力以便驱动感光鼓驱动机构如下。
　　在主组件侧，设置有可旋转件和一非圆形扭转孔，可旋转件用于传递电机的驱动力，扭转孔设置在可旋转件的中心部，设有多个角部且具有可以与可旋转件一体转动的横截面。
　　在处理盒侧，设置一非圆形扭转突起，突起设置在感光鼓的其中一个轴向端部，并且具有设有多个角部的横截面。当处理盒被装至设备主组件时，可旋转件在突起和孔彼此接合的状态下旋转时，可旋转件的旋转驱动力被传递至感光鼓。结果，用于驱动感光鼓的旋转力从设备主组件传递至感光鼓。另一种已知的机构是通过啮合固定于感光鼓的齿轮而驱动感光鼓，进而驱动感光鼓构成的处理盒。然而，在美国专利 US5903803 中所描述的传统构造中，当通过沿着与可旋转件的轴线大致垂直的方向移动处理盒而将处理盒安装至主组件或者从主组件拆除时，需要使可旋转件沿着水平方向移动。即，需要通过主组件盖的打开和关闭操作而使可旋转件水平移动。通过所述主组件盖的打开操作，孔与突起分离。另一方面，通过主组件盖的关闭操作，孔朝着突起移动以便与突起接合。因此，在传统的处理盒中，需要在主组件上设置一种机构，其用于通过主组件盖的打开和关闭操作而沿着旋转轴线方向移动可旋转件。在美国专利US4829335 所描述的构造中，无需沿着其轴线方向移动设置于主组件的驱动齿轮，所述盒就能够通过沿着大致垂直于所述轴线的方向移动而安装至主组件以及从主组件上拆却。然而，在这种构造中，主组件和处理盒之间的驱动连接部是齿轮之间的啮合部，从而难以防止感光鼓的旋转不均匀性。
　　美国专利申请公开说明书US2008/0152388A1公开了另一种处理盒，其相对上述处理盒的改进点是，位于感光鼓的一个轴向端部的驱动组件是采用圆球式万向节驱动联结结构。这种驱动联结结构存在着易从驱动组件中脱出，特别是在运输过程当中，此现象更易出现，而使驱动组件的功能丧失或工作不稳定。
　　中国发明专利CN200920238326.2提供了一种感光鼓驱动组件，包括紧配于感光鼓一端的齿轮和轴向调整组件，该轴向调整组件包括了第一运动子组件、槽部件和中心轴部件；所述槽部件具有在空间上相互垂直的上滑槽和下滑槽，所述第一运动子组件在第一方向上与所述上滑槽形成相对滑动的配合；所述中心轴部件与所述齿轮具有共同的轴线，其在第二方向上与所述下滑槽形成相对滑动的配合；所述第一方向和第二方向均垂直于感光鼓轴向。所述第一运动子组件包括一伸出所述齿轮外的旋转驱动力接收头和一调整滑块，所述旋转驱动力接收头可绕其轴线旋转地连接于所述调整滑块，所述旋转驱动力接收头与调整滑块之间设有一可绕所述轴线旋转的转动限位销。当处理盒落机或取出时，上述感光鼓驱动组件中的旋转驱动力接收头与成像设备驱动头之间容易发生卡死的问题。因此，上述感光鼓驱动组件尚有进一步改进的空间。
 技术问题
本发明的第一目的是提供一种可最大程度降低落机和取出处理盒时的死点位置区域，避免旋转驱动力接收头与成像设备驱动头之间发生卡死问题的旋转驱动力接收头。
　　本发明的第二目的是提供一种具有上述旋转驱动力接收头的驱动组件。
 技术解决方案
为了实现上述第一目的，本发明采用了以下的技术方案：提供一种旋转驱动力接收头，包括可与成像设备驱动头配合的支架体和驱动触头，所述驱动触头通过枢轴和回弹复位件连接于所述支架体，所述驱动触头在支架体的径向上与该支架体形成可相对其摆动的配合，在支架体的周向上形成与其联动的配合。
　　进一步的技术方案为，所述驱动触头有两个，所述枢轴有两根，所述支架体包括了外端部、中间连接部、连接板和内端部，所述外端部的两侧具有第一缺口和第二缺口；其中，第一驱动触头的中部通过第一枢轴与所述外端部在其第一缺口处连接，第二驱动触头的中部通过第二枢轴与所述外端部在其第二缺口处连接，所述第一驱动触头和第二驱动触头分别可绕各自枢轴相对于外端部转动。
　　进一步地，所述回弹复位件为两根拉簧，所述第一驱动触头的下部通过第一拉簧与所述连接板连接，所述第二驱动触头的下部通过第二拉簧与所述连接板连接。
　　进一步地，所述第一驱动触头的上部具有可与成像设备驱动头啮合的第一啮合槽，第二驱动触头的上部具有可与成像设备驱动头啮合的第二啮合槽。
　　进一步地，所述外端部朝外的表面中心位置形成有内凹的球形面，该球形面的周围形成有切入面。
　　进一步地，所述内端部具有沿径向贯通的滑槽。
　　为了实现上述第二目的，本发明采用了以下的技术方案：提供一种驱动组件，可与成像设备驱动头配合以传递旋转驱动力，所述驱动组件包括：具有一固定端的齿轮；沿轴向穿过所述齿轮的中心轴部件，该中心轴部件与所述齿轮形成周向联动的配合；旋转驱动力接收头，可绕所述中心轴部件的轴线旋转并与该中心轴部件形成周向联动的配合，所述旋转驱动力接收头包括可与成像设备驱动头配合的支架体和驱动触头；所述驱动触头通过枢轴和回弹复位件连接于所述支架体，所述驱动触头在支架体的径向上与该支架体形成可相对其摆动的配合，在支架体的周向上形成与其联动的配合。
　　进一步的技术方案为，所述驱动触头有两个，所述枢轴有两根，所述支架体包括了外端部、中间连接部、连接板和内端部，所述外端部的两侧具有第一缺口和第二缺口；其中，第一驱动触头的中部通过第一枢轴与所述外端部在其第一缺口处连接，第二驱动触头的中部通过第二枢轴与所述外端部在其第二缺口处连接，所述第一驱动触头和第二驱动触头分别可绕各自枢轴相对于外端部转动。
进一步地，所述中心轴部件由头部和杆部组成，所述内端部开有沿径向贯通的滑槽，所述头部可在该滑槽内相对于所述内端部沿径向往复滑动。
　　进一步地，所述外端部朝外的表面中心位置形成有内凹的球形面，该球形面的周围形成有切入面。
 有益效果
本发明的优点和有益效果：对于采用了本发明旋转驱动力接收头的处理盒，在安装至成像设备的过程中，该旋转驱动力接收头的驱动触头在成像设备驱动头的接触压力下往内侧摆动，直到使成像设备驱动头从非工作位置移动至工作位置时，驱动触头在回弹复位件的作用下摆回到原始状态，保证了驱动功能正常进行。取出处理盒时，在成像设备驱动头的作用下，驱动触头往外侧摆动，使处理盒不受成像设备驱动头的阻挡，得以顺利取出。本发明能最大程度降低落机和取出处理盒时的死点位置区域，避免了旋转驱动力接收头与成像设备驱动头之间发生卡死的问题，从而能够安全可靠的驱动感光鼓工作。本发明的驱动组件装配简单、方便，结构性能稳定，采用了这种驱动组件构建的处理盒落机平稳、性能可靠、工作稳定顺畅。
附图说明
以下结合附图对本发明作进一步说明。
图1是应用了本发明一种实施例的驱动组件的处理盒结构示意图。
图2是图1当中的感光鼓的结构示意图。
图3是图2当中的驱动组件的结构示意图。
图4是图3所示驱动组件的剖视图。
图5是图3所示驱动组件的零件分解图。
图6是图3所示驱动组件在隐藏了齿轮后的结构示意图。
图7是图3所示驱动组件当中的旋转驱动力接收头的零件分解图。
图8是图7所示旋转驱动力接收头当中的支架体的结构示意图。
图9是图5所示驱动组件当中的中心轴部件的结构示意图。
图10是图5所示驱动组件当中的齿轮结构示意图。
图11a~图11c是图1所示处理盒在落机过程中，其驱动组件与打印机驱动头的配合过程示意图。
图12a~图12b是图1所示处理盒在脱机过程中，其驱动组件与打印机驱动头的配合过程示意图。
 本发明的实施方式
参见图1，本发明的处理盒10包括了盒体101及可旋转地安装在盒体101内的感光鼓20。参见图2，该感光鼓20包括鼓主体201及固定在鼓主体201轴向一端的驱动组件1，鼓主体201的周面上具有感光层，驱动组件1用于接收来自于成像设备（如打印机）驱动头7的旋转驱动力，并将该旋转驱动力传递给鼓主体201，使鼓主体201在该旋转驱动力作用下绕其轴线旋转。由于本发明的处理盒基本与本文背景技术中描述的各种现有处理盒基本类似，感光鼓也与现有技术中的感光鼓基本类似，不同处主要在于构建于感光鼓一个轴向端部的驱动组件，因此，以下主要对驱动组件的实施例进行说明。
　　参见图3至图6，驱动组件1包括了齿轮2、中心轴部件3、旋转驱动力接收头4、压缩弹簧5以及限位销6等。齿轮2的内端为固定端21，通过该固定端21可将齿轮2固定于鼓主体201的一端。中心轴部件3的杆部32的横截面形状呈腰形，该杆部32沿轴向穿过齿轮2内的一个同样呈腰形且大小基本一致的通孔，从而使中心轴部件3与齿轮2之间形成周向联动的配合。如图9，中心轴部件3由头部31和杆部32组成，大致呈T字形。其中，头部31呈腰形的薄板状，杆部32的横截面形状同样呈腰形，但杆部32的横截面积小于头部31的面积。杆部32的内端设有贯穿杆部32的销孔33，该销孔33可供限位销6穿过，通过限位销6进行轴向限位，可防止中心轴部件3从齿轮2中脱出。旋转驱动力接收头4连接于中心轴部件3的外端，该旋转驱动力接收头4可在成像设备驱动头7的作用下绕该中心轴部件3的轴线旋转，从而将旋转驱动力依次传递至中心轴部件3、齿轮2及鼓主体201。压缩弹簧5套在中心轴部件3上，夹在旋转驱动力接收头4与齿轮2之间。通过压缩弹簧5的压缩以及限位销6的轴向限位，旋转驱动力接收头4和中心轴部件3组成的轴向调整组件可沿驱动组件1的轴向、相对于齿轮2作有限制的轴向往复平移运动。
参见图7和图8，旋转驱动力接收头4包括了支架体41、第一驱动触头42、第二驱动触头43、第一拉簧44、第二拉簧45、第一枢轴46和第二枢轴47。其中，支架体41由外端部411、中间连接部412、连接板413和内端部414构成，四个部分连为一体。外端部411大致呈碟状，其朝外的表面的中心位置形成有内凹的球形面417，球形面417的周围形成有切入面418。外端部411的两侧分别具有第一缺口415和第二缺口416，第一驱动触头42的中部通过第一枢轴46与外端部411在第一缺口415处连接，第二驱动触头43的中部通过第二枢轴47与外端部411在第二缺口416处连接，第一驱动触头42与第二驱动触头43关于旋转驱动力接收头4的轴线48形成中心对称，第一驱动触头42和第二驱动触头43分别可绕各自枢轴相对于外端部411转动。此外，第一驱动触头42的下部通过第一拉簧44与连接板413连接，第二驱动触头43的下部通过第二拉簧45与连接板413连接。第一驱动触头42和第二驱动触头43以这种方式安装在支架体41上，具有可以在非驱动方向（即旋转驱动力接收头4的径向）上左右摇摆，在驱动方向（即旋转驱动力接收头4的周向）上不摆动特点。在未受到外力的情况下，第一驱动触头42和第二驱动触头43分别在第一拉簧44和第二拉簧45的拉引下处于竖直位置（即沿旋转驱动力接收头4的轴向延伸）。第一驱动触头42的上部具有第一啮合槽421，第二驱动触头43的上部具有第二啮合槽431。中间连接部412呈圆柱形，连接板413为一圆形板。内端部414为一开有槽的圆柱体，其具有沿径向贯通的滑槽4141，该滑槽4141的的横截面大致为“凸”字形，中心轴部件3的头部31可在该滑槽4141内相对于内端部414沿径向往复滑动。
参见图10，齿轮2的外圆周面上具有传动齿圈24，齿轮2内部设有垂直于轴向的隔板25以及位于隔板25上方的齿轮腔27，该隔板25的中心位置设有向上凸起的定位座23，该定位座23开有一腰形孔22，该腰形孔22的形状大小与中心轴部件3的杆部32的横截面形状大小基本相等，杆部32仅能在该腰形孔22内实现轴向的移动。齿轮腔21的周向侧壁26为旋转驱动力接收头4的径向往复平移运动提供限位。
图11a~图11c，表示出装有驱动组件1的处理盒（仅示出驱动组件1）落入打印机内的工作过程示意图，处理盒沿垂直于驱动组件1轴线的方向Xa落入打印机内；图12a和图12b表示出装有驱动组件1的处理盒从打印机内脱出的工作过程示意图，处理盒沿垂直于鼓轴线的方向Xb从打印机内脱出。其工作过程如下。
1、沿方向Xa将处理盒推入打印机。
2、参见图11a~图11c，当处理盒上驱动组件1沿方向Xa放入打印机，其中一个驱动触头（例如第一驱动触头42）接触到打印机驱动头7时，第一驱动触头42在打印机驱动头7的接触压力下往内侧摆动，由于第二驱动触头43与第一驱动触头42中心对称，因此当初始接触位置是第二驱动触头43时，其动作过程与上述过程相类似；当打印机驱动头7经由支架体41的切入面418切入到球形面417时，支架体41和中心轴部件3构成的组件在打印机驱动头7压迫下，克服压缩弹簧5的弹力而整体沿Za方向移动。
3、直到使打印机驱动头7从非工作位置移动至工作位置时，第一驱动触头42在第一拉簧44的拉引作用下摆回到初始的竖直状态并与打印机驱动头7的驱动销71啮合，在打印机驱动头7的纵轴部分72的端部与支架体41的球形面417啮合后，支架体41和中心轴部件3构成的组件在压缩弹簧5的弹力作用下整体沿Zb方向移动，从而使驱动功能正常进行。
4、参见图12a和图12b，当打印机停止运行，将处理盒从打印机中取出时，处理盒沿方向Xb移动，第一驱动触头42接触到打印机驱动头7时，第一驱动触头42在打印机驱动头7的接触压力下往外侧摆动，同时，支架体41和中心轴部件3构成的组件在打印机驱动头7压迫下，克服压缩弹簧5的弹力而整体沿Za方向移动，使处理盒不受打印机驱动头7的阻挡，得以顺利取出。
5、当打印机驱动头7完全脱离驱动组件1后，第一驱动触头42在第一拉簧44的拉引作用下摆回到初始的竖直状态，支架体41和中心轴部件3构成的组件在压缩弹簧5的弹力作用下整体沿Zb方向移动，回复到初始状态，从而完成处理盒的脱机工作。
以上仅是本发明的优选实施方式，应当指出，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，而不脱离本发明权利要求的保护范围。例如，限位插销可以采用本领域技术人员容易想到的其它轴向限位结构来实现，轴向限位结构可以是与中心轴部件分离的独立构件，也可以是形成在中心轴部件上的一个部分。此外，上述的压缩弹簧还可以用其它的弹性部件来替代，例如可被压缩的弹性塑料件结构等；中心轴部件的杆部横截面形状以及齿轮隔板上的通孔的形状也不限于腰形，还可以是长方形、平形四边形等具有两条平形边的任何形状，只要能够使轴向调整组件仅能相对于齿轮沿轴向平动，而不能相对于齿轮沿径向平动和绕轴线转动即可。
 工业实用性
本发明的旋转驱动力接收头和驱动组件可以在工业上制造和使用，当应用在处理盒上时，可最大程度降低落机和取出处理盒时的死点位置区域，避免旋转驱动力接收头与成像设备驱动头之间发生卡死的问题，从而能够安全可靠的驱动感光鼓工作。本发明的驱动组件装配简单、方便，结构性能稳定，采用了这种驱动组件构建的处理盒落机平稳、性能可靠、工作稳定顺畅。因此本发明具备工业实用性。

Claims (10)

  1. 一种旋转驱动力接收头，包括可与成像设备驱动头配合的支架体和驱动触头，其特征在于：所述驱动触头通过枢轴和回弹复位件连接于所述支架体，所述驱动触头在支架体的径向上与该支架体形成可相对其摆动的配合，在支架体的周向上形成与其联动的配合。
  2. 根据权利要求1所述的旋转驱动力接收头，其特征在于，所述驱动触头有两个，所述枢轴有两根，所述支架体包括了外端部、中间连接部、连接板和内端部，所述外端部的两侧具有第一缺口和第二缺口；其中，第一驱动触头的中部通过第一枢轴与所述外端部在其第一缺口处连接，第二驱动触头的中部通过第二枢轴与所述外端部在其第二缺口处连接，所述第一驱动触头和第二驱动触头分别可绕各自枢轴相对于外端部转动。
  3. 根据权利要求2所述的旋转驱动力接收头，其特征在于，所述回弹复位件为两根拉簧，所述第一驱动触头的下部通过第一拉簧与所述连接板连接，所述第二驱动触头的下部通过第二拉簧与所述连接板连接。
  4. 根据权利要求2所述的旋转驱动力接收头，其特征在于，所述第一驱动触头的上部具有可与成像设备驱动头啮合的第一啮合槽，第二驱动触头的上部具有可与成像设备驱动头啮合的第二啮合槽。
  5. 根据权利要求2所述的旋转驱动力接收头，其特征在于，所述外端部朝外的表面中心位置形成有内凹的球形面，该球形面的周围形成有切入面。
  6. 根据权利要求2所述的旋转驱动力接收头，其特征在于，所述内端部具有沿径向贯通的滑槽。
  7. 一种驱动组件，可与成像设备驱动头配合以传递旋转驱动力，所述驱动组件包括：
    　　具有一固定端的齿轮；
    　　沿轴向穿过所述齿轮的中心轴部件，该中心轴部件与所述齿轮形成周向联动的配合；
    　　旋转驱动力接收头，可绕所述中心轴部件的轴线旋转并与该中心轴部件形成周向联动的配合，所述旋转驱动力接收头包括可与成像设备驱动头配合的支架体和驱动触头；
    　　其特征在于：
    　　所述驱动触头通过枢轴和回弹复位件连接于所述支架体，所述驱动触头在支架体的径向上与该支架体形成可相对其摆动的配合，在支架体的周向上形成与其联动的配合。
  8. 根据权利要求7所述的驱动组件，其特征在于，所述驱动触头有两个，所述枢轴有两根，所述支架体包括了外端部、中间连接部、连接板和内端部，所述外端部的两侧具有第一缺口和第二缺口；其中，第一驱动触头的中部通过第一枢轴与所述外端部在其第一缺口处连接，第二驱动触头的中部通过第二枢轴与所述外端部在其第二缺口处连接，所述第一驱动触头和第二驱动触头分别可绕各自枢轴相对于外端部转动。
  9. 根据权利要求8所述的驱动组件，其特征在于，所述中心轴部件由头部和杆部组成，所述内端部开有沿径向贯通的滑槽，所述头部可在该滑槽内相对于所述内端部沿径向往复滑动。
  10. 根据权利要求8所述的驱动组件，其特征在于，所述外端部朝外的表面中心位置形成有内凹的球形面，该球形面的周围形成有切入面。
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