Couplings, rotating parts and handling boxes

Abstract

The coupling of the present invention is used to receive driving force from a force output component in an imaging device to drive a rotating body to rotate. The force output component has a braking force output component and a driving force output component arranged coaxially. The coupling includes a driving force receiving component and a pushing component. The driving force receiving component is used to engage with the driving force output component to receive the driving force that drives the rotating body to rotate. The pushing component is used to abut against the braking force output component. When viewed along a direction perpendicular to the rotation axis of the coupling, the driving force receiving component is farther away from the rotating body than the pushing component. The structure of the coupling of the present invention is simplified, its manufacturing precision requirements are reduced, and the risk of damage to the braking force output component in the force output component is also reduced.

Description

[0001] This invention claims priority to the prior application filed by the applicant with the Chinese Patent Office on October 18, 2022, entitled "Coupling, Rotating Component and Processing Box", application number 202222744712.7, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of electrophotographic imaging, and more particularly to a processing box that is detachably mounted in an electrophotographic imaging device, as well as a rotating component and coupling located in the processing box. Background Technology

[0003] Generally, a processing cartridge detachably installed in an electrophotographic imaging device (hereinafter referred to as "imaging device") needs to be equipped with at least one rotating body that can rotate about a rotation axis. When the processing cartridge is working, the rotating body is used to stir the developer in the processing cartridge, or to supply the developer to other components, or to form an electrostatic latent image on its surface and receive the developer to develop the electrostatic latent image, etc. For this purpose, a coupling that can continuously receive driving force from the imaging device needs to be provided in the processing cartridge. When the coupling receives driving force, the rotating body can be driven.

[0004] Chinese patent application CN113574469A describes an imaging device, which includes a force output component that simultaneously has a driving force output component and a braking force output component. When the rotating body needs to work, the driving force output component is used to output driving force to the coupling. When the rotating body needs to stop working, the braking force output component is used to output braking force to the coupling to prevent the rotating body from continuing to rotate due to inertia.

[0005] Corresponding to the force output component, the coupling needs to be equipped with a guide part to enable the coupling to cooperate with the force output component. Furthermore, the braking force output component and the component in the coupling used to receive braking force are both designed as barbs, which makes the structure of the coupling more complex and increases the requirements for its production precision. At the same time, the barb-shaped braking force output component is also easily damaged during the process of coupling and force output component being combined. Summary of the Invention

[0006] The purpose of this invention is to provide a coupling with a simple structure, so as to reduce the production precision requirements of the coupling and prevent the braking force output component in the force output component from being damaged during the connection process between the coupling and the force output component.

[0007] To achieve the above objectives, the present invention adopts the following technical solution.

[0008] A coupling is used to receive driving force from a force output component in an imaging device to drive a rotating body to rotate. The force output component has a braking force output component and a driving force output component arranged coaxially. The coupling includes a driving force receiving component and a pushing component. The driving force receiving component is used to engage with the driving force output component to receive the driving force that drives the rotating body to rotate, and the pushing component is used to abut against the braking force output component. When viewed along a direction perpendicular to the rotation axis of the coupling, the driving force receiving component is farther away from the rotating body than the pushing component. The coupling does not need to have a component to receive braking force, its structure can be simplified, the production accuracy requirements are reduced, and the risk of damage to the braking force output component in the force output component is also reduced.

[0009] Specifically, along the radial direction of the coupling, the driving force receiving element is further away from the axis of rotation of the coupling than at least a portion of the pushing element.

[0010] The pusher has a pusher surface for forcing the braking force output component, and the coupling also includes a guide component that guides the braking force output component toward the pusher surface during the coupling's engagement with the force output component.

[0011] Along the radial direction of the coupling, the driving force receiving element is further away from the axis of rotation of the coupling than the guiding element.

[0012] In some embodiments, the drive force receiving member and the jacking member at least partially overlap along the direction of rotation of the coupling.

[0013] In some embodiments, the pusher includes a first pusher surface and a second pusher surface distributed along the radial direction of the coupling, the first pusher surface being located outside the second pusher surface along the rotation direction of the coupling, the first pusher surface at least partially overlapping the drive force receiving member, and the second pusher surface at least partially overlapping the guide member.

[0014] In some embodiments, the guide member is provided with a first guide surface for guiding the braking force output member, and the drive force receiver is provided with a second guide surface for guiding the braking force output member. When viewed along a direction perpendicular to the rotation axis of the coupling, at least a portion of the first guide surface is further away from the rotating body than the second guide surface.

[0015] In some embodiments, the guide member is provided with a first guide surface for guiding the braking force output member, and the driving force receiver has a driving force receiving surface for receiving the driving force. When viewed along the rotation axis of the coupling, the included angle between the line connecting the upstream point or line of the first guide surface and the center of the circle and the line connecting the upstream point or line of the driving force receiving surface and the center of the circle is in the range of 0°-10°.

[0016] In some embodiments, the drive force receiver has a drive force receiving surface for receiving drive force, and at least a portion of the guide is located upstream of the drive force receiving surface along the rotation direction of the coupling.

[0017] In the coupling, multiple guide members and multiple driving force receivers are arranged at intervals along the rotation direction of the coupling. A first clamping space is formed between two adjacent guide members, and a second clamping space is formed between two adjacent driving force receivers. The first clamping space is used to allow the braking force output member to enter, and the second clamping space is used to allow the driving force output member to enter. Preferably, there are four guide members and four driving force receivers.

[0018] The present invention also provides a rotating component, which includes a rotating body and a coupling as described above, wherein the coupling and the rotating body are coaxially arranged.

[0019] The present invention also provides a processing box, which includes a housing and the aforementioned rotating member, the rotating member being rotatably disposed within the housing.

[0020] The present invention also provides another processing box, which includes a housing, a rotating body rotatably mounted in the housing, a coupling as described above, and a driving force transmission device disposed between the coupling and the rotating body. The coupling and the rotating body are not coaxial, and the driving force of the coupling is transmitted to the rotating body through the driving force transmission device. Attached Figure Description

[0021] Figure 1 This is a perspective view of the processing box involved in the present invention.

[0022] Figure 2A This is a perspective view of a force output component in an imaging device to which the processing box of the present invention is applicable.

[0023] Figure 2B This is an exploded view of some components in the force output device.

[0024] Figure 2C It is a cross-sectional view of the force output component taken along a plane passing through the axis of rotation of the force output component.

[0025] Figure 2D This is a side view of the force output component viewed along its rotation axis.

[0026] Figure 3A This is a perspective view of the coupling involved in Embodiment 1 of the present invention.

[0027] Figure 3B This is an exploded view of the coupling involved in Embodiment 1 of the present invention.

[0028] Figure 3C It is a cross-sectional view of the coupling taken along a plane passing through the axis of rotation of the coupling involved in Embodiment 1 of the present invention.

[0029] Figure 4 A- Figure 4 D is a schematic diagram of the connection process between the coupling and the force output component according to Embodiment 1 of the present invention.

[0030] Figure 5 B- Figure 5 D corresponds to respectively Figure 4 B- Figure 4 A partial enlarged view of the coupling and force output component in section D.

[0031] Figure 6 This is a schematic diagram showing the relative positions of the coupling and the force output component after they are fully engaged, according to Embodiment 1 of the present invention.

[0032] Figure 7 This is a perspective view of the coupling involved in Embodiment 2 of the present invention.

[0033] Figure 8 A and Figure 8 B is a schematic diagram of the connection process between the coupling and the force output component involved in Embodiment 2 of the present invention.

[0034] Figure 9 This is a perspective view of the coupling involved in Embodiment 3 of the present invention.

[0035] Figure 10 This is a perspective view of the coupling according to Embodiment 3 of the present invention after a portion has been removed.

[0036] Figure 11A This is a side view when viewed along a direction perpendicular to the rotation axis of the coupling involved in Embodiment 3 of the present invention.

[0037] Figure 11B This is a side view taken along the rotation axis of the coupling involved in Embodiment 3 of the present invention.

[0038] Figures 12A-12C This is a schematic diagram of the connection process between the coupling and the force output component involved in Embodiment 3 of the present invention. Detailed Implementation

[0039] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0040]

Processing Box

[0041] Figure 1 This is a perspective view of the processing box involved in the present invention.

[0042] The processing box 100 includes a housing 1 and a rotating body 11 rotatably mounted in the housing 1. The rotating body 11 can rotate about a rotation axis L11 extending in the x direction after receiving a driving force. The +x direction end of the rotating body 11 / processing box 100 is used to receive the driving force. Therefore, the +x direction end of the processing box 100 is called the driving end, and the corresponding end is called the non-driving end.

[0043] Depending on the internal structure of the imaging device, the processing box 100 can be detachably installed in the imaging device along the x-direction or in a direction intersecting the x-direction. Depending on the structure of the processing box 100, the processing box 100 can be configured as a developer-containing unit 100a that contains developer, a developing unit 100b that can carry developer, an imaging unit 100c that can form an electrostatic latent image, or a combination of at least two of the aforementioned developer-containing unit 100a, developing unit 100b, and imaging unit 100c. A stirring element for stirring the developer is rotatably disposed in the developer holding unit 100a, and this stirring element can be regarded as a type of rotating body; a developing element is rotatably disposed in the developing unit 100b, which is used to carry the developer and deliver the developer to the imaging unit 100c, or a supply element is also rotatably disposed at the same time, which is used to supply the developer to the developing element, and the developing element or the supply element can also be regarded as a type of rotating body; a photosensitive element is rotatably disposed in the imaging unit 100c, which is used to form an electrostatic latent image on its surface and receive the developer supplied by the developing element, thereby developing the electrostatic latent image, and the photosensitive element can also be regarded as a type of rotating body.

[0044] The coupling 2 described below can be directly installed at the end of the rotating body 11. In this case, the coupling 2 and the rotating body 11 are coaxial and together constitute part of the rotating component. When the coupling 2 receives a driving force, the rotating body 11 can be directly driven. The coupling 2 can also be installed at a position that is not coaxial with the rotating body 11. When the coupling 2 receives a driving force, the coupling 2 transmits the driving force to the rotating body 11 through the driving force transmission device. Therefore, the rotation axis L2 of the coupling 2 is coaxial or parallel to the rotation axis L11 of the rotating body 11.

[0045] Given that the rotating body 11 can have the above-mentioned multiple options, the position of the coupling 2 can also have multiple options. In order to clearly show the connection process between the coupling 2 and the force output component in the imaging device, the rotating body 11 will not be shown in the following text. However, it can be understood that the rotating body 11 will rotate by receiving the driving force of the coupling 2.

[0046] [Force Output Component]

[0047] Figure 2A This is a perspective view of a force output component in an imaging device to which the processing box of the present invention is applicable; Figure 2B This is an exploded view of some components in the force output component; Figure 2C It is a cross-sectional view of the force output component taken along a plane passing through the axis of rotation of the force output component; Figure 2D This is a side view of the force output component viewed along its rotation axis.

[0048] To reduce interference between the force output component 90 and the processing box 100 during installation and disassembly, there are existing solutions that allow the force output component 90 to extend and retract in the x-direction. For example, the force output component 90 is configured to be linked with the door cover of the imaging device. When the door cover is opened, the force output component 90 retracts in the -x-direction, and when the door cover is closed, the force output component 90 extends in the +x-direction.

[0049] As shown in the figure, the force output component 90 can rotate about a rotation axis L9 parallel to the x-direction along the direction indicated by r9. The force output component 90 includes a sleeve 93, a braking force output component 95 disposed in the sleeve 93, and a first elastic pushing component 932 and a second elastic pushing component 933 disposed in the sleeve 93. The sleeve 93 includes a sleeve body 935 forming a sleeve cavity 930. The braking force output component 95, the first elastic pushing component 932, and the second elastic pushing component 933 are all disposed in the sleeve cavity 930. Furthermore, the sleeve 93 is also provided with a plurality of driving force output components 94 and a connector 943 connecting at least two driving force output components 94. Preferably, the connector 943 and the plurality of driving force output components 94 are integrally formed with the sleeve body 935. An exposure opening 931 is formed between two adjacent driving force output components 94 along the circumferential direction of the sleeve body 935. A braking force output component 95 is exposed from the exposure opening 931. The driving force output component 94 and the braking force output component 95 can rotate together around the rotation axis L9. Each driving force output component 94 is provided with a driving force output surface 941 and a guide surface 942 adjacent to each other. Preferably, the driving force output component 94 protrudes radially inward from the inner wall of the sleeve body 935. The diameter of the circle formed by the radial inner wall of the driving force output component 94 along the radial direction of the sleeve 93 is d1.

[0050] The first elastic pusher 932 is used to apply a pushing force in the -x direction to the sleeve body 935, and the second elastic pusher 933 is used to apply a pushing force in the -x direction to the braking force output member 95. However, the pushing force applied by the first elastic pusher 932 to the sleeve body 935 is different from the pushing force applied by the second elastic pusher 933 to the braking force output member 95. Therefore, the braking force output member 95 can move relative to the sleeve body 935 in the x direction.

[0051] The braking force output component 95 includes a first braking force output component 95a and a second braking force output component 95b that are coaxially arranged and separable from each other. The first braking force output component 95a is provided with a plurality of first braking force output portions 95a1 and a connecting portion 95a2 for engaging with the second braking force output component 95b. The second braking force output component 95b is provided with a plurality of second braking force output portions 95b1 and a connected portion 95b2 for engaging with the first braking force output component 95a. Along the radial direction of the sleeve 93, the first braking force output portions 95a1 are located outside the second braking force output portions 95b1, that is, the first braking force output portions 95a1 are farther away from the rotation axis L9 than the second braking force output portions 95b1. Along the rotation direction r9, the first braking force output portions 95a1 and the driving force output component 94 are basically located on the same circumference, and the second braking force output portions 95b1 are closer to the rotation axis L9 than the driving force output component 94.

[0052] Along the rotation direction r9, the joint 95a2 and the joined part 95b2 cannot be separated. Accordingly, the first braking force output member 95a and the second braking force output member 95b can transmit force through the joint 95a2 and the joined part 95b2. When either the first braking force output member 95a or the second braking force output member 95b receives a force along the +x direction, the entire braking force output member 95 can move along the rotation axis L9 in the +x direction under the drive of the second braking force output member 95b, that is, the entire braking force output member 95 moves into the sleeve cavity 930.

[0053] Furthermore, the force output component 90 also includes an intermediate transmission component 96 disposed within the sleeve cavity 930. The first braking force output component 95a and the intermediate transmission component 96 are also able to engage and disengage in the direction of the rotation axis L9, but cannot disengage in the direction of the rotation axis r9. Therefore, when the braking force output component 95 moves as a whole into the sleeve cavity 930, the braking force output component 95 and the intermediate transmission component 96 will disengage. At this time, the braking force output component 95 as a whole can rotate freely around the rotation axis L9 along r9, that is, the driving force output component 94 and the braking force output component 95 can rotate relative to each other.

[0054] Coupling

[0055] [Example 1]

[0056] Figure 3A This is a perspective view of the coupling according to Embodiment 1 of the present invention; Figure 3B This is an exploded view of the coupling involved in Embodiment 1 of the present invention; Figure 3C It is a cross-sectional view of the coupling cut along a plane passing through the axis of rotation of the coupling involved in Embodiment 1 of the present invention; Figure 4 A- Figure 4D is a schematic diagram of the connection process between the coupling and the force output component according to Embodiment 1 of the present invention; Figure 5 B- Figure 5 D corresponds to respectively Figure 4 B- Figure 4 Enlarged view of the coupling and force output component in section D; Figure 6 This is a schematic diagram showing the relative positions of the coupling and the force output component after they are fully engaged, according to Embodiment 1 of the present invention.

[0057] The coupling 2 is rotatable about a rotation axis L2 extending in the x-direction along a rotation direction r2. The coupling 2 includes a base 2a, a base plate 2b, a driving force receiver 2c, and a pushing member 2d. During the engagement of the coupling 2 with the force output member 90, the pushing member 2d forces the braking force output member 95 along the rotation axis L9 of the force output member 90. The driving force receiver 2c engages with the driving force output member 94 in the rotation direction r9 of the force output member 90. The base plate 2b is connected to the base 2a, and the driving force receiver 2c can be directly mounted on the base 2a. It can be set on the base plate 2b. Regardless of whether the coupling 2 is set on the base plate 2b, after the driving force receiving member 2c receives the driving force, the base 2a can transmit the driving force and drive the rotating body 11 to rotate. Along the radial direction of the coupling 2, the push member 2d is located inside the driving force receiving member 2c, that is, the driving force receiving member 2c is farther away from the rotation axis L2 than the push member 2d. On the one hand, it can avoid the driving force receiving member 2c interfering with the contact between the push member 2d and the braking force output member 95. On the other hand, the push member 2d can be protected by the driving force receiving member 2c.

[0058] It is understandable that the substrate 2b can be regarded as part of the base 2a to improve the overall structural design freedom of the coupling 2. The following description takes the example of having a substrate 2b.

[0059] In this embodiment, the pusher 2d is movably configured relative to the base 2a. Specifically, the coupling 2 further includes an elastic element 2e coupled to the pusher 2d. The elastic element 2e is used to push the pusher 2d in the +x direction. When the pusher 2d receives a force in the -x direction, the pusher 2d will move / retract relative to the base 2a in the -x direction, and the elastic element 2e will undergo elastic deformation. Conversely, when the force is removed, the elastic element 2e releases its elastic force, and the pusher 2d moves / extends relative to the base 2a in the +x direction. Preferably, the elastic element 2e is a compression spring. More preferably, the elastic force of the elastic element 2e is greater than the elastic force of the second elastic pusher 933, but less than the elastic force of the first elastic pusher 932.

[0060] As shown in the figure, a movable cavity 2a1 is formed inside the base 2a. A base plate 2a2 is provided on the side of the movable cavity 2a1 away from the substrate 2b / driving force receiving member 2c. One end of the elastic member 2e abuts against the base plate 2a2, and the other end abuts against the pushing member 2d. Therefore, the elastic member 2e can contract and expand within the movable cavity 2a1. Furthermore, the base 2a / substrate 2b is provided with an opening 2b1 that communicates with the movable cavity 2a1. The elastic member 2e and the pushing member 2d are disposed in the movable cavity 2a1 through the opening 2b1.

[0061] The specific shape of the pusher 2d should not be limited, as long as it can abut against the braking force output member 95 and push the braking force output member 95 into the sleeve cavity 930. For example, the pusher 2d can be a regular columnar body or an irregular body. Regardless of the shape of the pusher 2d, the pusher 2d is provided with a pusher surface 2d1 for abutting against the braking force output member 95. Before the coupling 2 is engaged with the force output member 90, along the rotation axis L2, the pusher 2d relative to the base 2a / The protrusion height h of the substrate 2b is 1mm-7mm, or in other words, the shortest distance between the push surface 2d1 and the base 2a / substrate 2b is 1mm-7mm. Preferably, the push surface 2d1 is the end face of the push member 2d. Along the radial direction of the coupling 2, the maximum dimension d2 of the push member 2d at least at the end in the +x direction is less than d1, specifically, the value of d2 does not exceed 11mm. When the push member 2d is set as a cylinder, the cross-sectional diameter d2 of the push member 2d does not exceed 11mm.

[0062] A driving force receiver 2c protrudes from the base 2a / substrate 2b in the +x direction along the rotation direction r2. At least one driving force receiver 2c is provided, as shown in the figure. The driving force receiver 2c is provided with a driving force receiving surface 2c3 for receiving driving force. Preferably, the driving force receiving surface 2c3 has a shape that can match the driving force output surface 941. Further, the driving force receiver 2c is also provided with an adjustment surface 2c1 for guiding the driving force receiver 2c / coupling 2. Preferably, the adjustment surface 2c1 is set to be inclined relative to the rotation axis L2 of the coupling. During the process of coupling 2 and force output component 90 being engaged, when the coupling 2 and force output component 90 interfere, the adjustment surface 2c1 can adjust the relative position between coupling 2 and force output component 90, so that coupling 2 and force output component 90 can be smoothly engaged. Preferably, the adjustment surface 2c1 is set as an inclined surface or a spiral surface.

[0063] In some embodiments, the driving force receiver 2c may also be provided with a clearance portion 2c2 for avoiding specific components in the force output component 90, thereby ensuring that the coupling 2 and the force output component 90 can be smoothly coupled. Preferably, the clearance portion 2c2 is arranged adjacent to the driving force receiving surface 2c3. More preferably, the driving force receiving surface 2c3, the clearance portion 2c2 and the adjustment surface 2c1 are arranged sequentially along the rotation direction r2 of the coupling. Furthermore, along the direction intersecting with the rotation axis L2, the size of the driving force receiver 2c decreases as the driving force receiver 2c gradually moves away from the base 2a / base plate 2b, which is more conducive to the smooth coupling of the driving force receiver 2c and the driving force output component 94.

[0064] The following is combined Figure 4 , Figure 5 and Figure 6 The process of coupling 2 engaging with force output component 90 is described, and the relative positions between coupling 2 and force output component 90 are shown more clearly. Figure 4 B. Figure 4 C and Figure 4 D shows a sectional view of the coupling 2 and the force output component 90 after being cut along the rotation axis L9.

[0065] like Figure 4 As shown in Figure A, after coupling 2 reaches the predetermined installation position of the imaging equipment along with the processing box, the force output component 90 is in a retracted state, not engaged with coupling 2, before the door closes. As the door closes, the force output component 90 begins to move / extend along the rotation axis L9 in the -x direction, as... Figure 4 B and Figure 5 As shown in Figure B, the pushing surface 2d1 begins to abut against the second braking force output member 95b. At this time, the driving force receiving member 2c does not contact the driving force output member 94. Therefore, for the coupling 2, it is preferable that, before the coupling 2 is engaged with the force output member 90, along the rotation axis L2, the pushing surface 2d1 is further away from the base 2a / base plate 2b than the driving force receiving member 2c / driving force receiving surface 2c3. Figure 3C As shown, along the rotation axis L2, the pushing surface 2d1 is higher than the highest point P of the driving force receiving component 2c.

[0066] As the door continues to close, Figure 4 C and Figure 5As shown in Figure C, the second elastic pusher 933 begins to be compressed, and the second braking force output member 95b drives the braking force output member 95 to move as a whole into the sleeve cavity 930. Since d2 does not exceed d1, at this time, the pusher 2d is about to enter the sleeve cavity 930 or between the multiple driving force output members 94. In some embodiments, the connector 943 is also provided with a positioning protrusion 934 through which the rotation axis L9 passes. Correspondingly, the pusher 2d is provided with a positioning hole 2d2 that allows the positioning protrusion 934 to enter. As the braking force output member 95 gradually moves into the sleeve cavity 930, the positioning protrusion 934 begins to enter the positioning hole 2d2, and the relative position between the coupling 2 and the force output member 90 can be initially positioned.

[0067] However, it is understandable that even without the combination of the aforementioned positioning protrusion 934 and positioning hole 2d2, the coupling 2 can still be pre-positioned within the force output member 90 due to the mutual contact between the push surface 2d1 and the second braking force output member 95b, thereby ensuring that the coupling 2 and the force output member 90 can be successfully coupled.

[0068] like Figure 4 D and Figure 5 As shown in Figure D, when the force output component 90 continues to move / extend in the -x direction, along the rotation axis L9, the braking force output component 95 disengages from the intermediate transmission component 96 and becomes free to rotate in the direction of rotation r9 or in the opposite direction. That is, the braking force output component 95 can rotate freely in the circumferential direction of the sleeve body 935. The second elastic pushing component 933 no longer undergoes elastic deformation. At the same time, under the elastic force of the second elastic pushing component 933, the pushing component 2d will also move a distance along the rotation axis L2 in the -x direction, that is, the pushing component 2d retracts into the movable cavity 2a1. The driving force receiving component 2c enters the sleeve cavity 930 through the exposure port 931, as shown in Figure D. Figure 6 As shown, along the direction intersecting the rotation axis L2 / L9, under the pushing action of the first elastic pushing member 932, the driving force output surface 941 coincides with the driving force receiving surface 2c3. When the force output member 90 starts to rotate, the driving force output surface 941 and the driving force receiving surface 2c3 abut against each other to transmit the driving force.

[0069] Therefore, in this embodiment, when the coupling 2 is engaged with the force output component 90, the braking force output component 95 located in the force output component 90 is shielded, or in other words, the braking force output component 95 no longer outputs braking force to the coupling 2. Correspondingly, the coupling 2 does not need to be equipped with a braking force receiving component for receiving braking force, thus simplifying the structure of the coupling 2 and reducing its manufacturing precision requirements. At the same time, the braking force output component 95 is pushed into the sleeve cavity 930 by the pusher 2d provided in the coupling 2 and retracts. The retraction of the braking force output component 95... Before the drive force receiver 2c and the drive force output member 94 are engaged, or in other words, before the drive force receiver 2c reaches a position where it can receive drive force from the drive force output member 94, the pusher 2d and the brake force output member 95 begin to engage / abut. This not only ensures the smooth engagement of the drive force receiver 2c and the drive force output member 94, but also allows a pre-engagement to be formed between the coupling 2 and the force output member 90, ensuring that the relative positions of the coupling 2 and the force output member 90 do not change. Consequently, the risk of damage to the brake force output member is greatly reduced.

[0070] To more clearly demonstrate the positional relationship between the drive force output component 94 and the drive force receiving component 2c, Figure 6 The braking force output component is hidden (95). Continuing... Figure 6 As shown, the protrusion that may be provided in the force output member 90 is avoided by the avoidance part 2c2. In some embodiments, a part of the driving force receiving member 2c reaches below the connector 943, that is, a part of the driving force receiving member 2c is deeper into the sleeve cavity 930 than the connector 943. Therefore, the driving force output surface 941 can stably output driving force to the driving force receiving surface 2c3.

[0071] As described above, the driving force receiver 2c is also provided with an adjustment surface 2c1. During the engagement of the coupling 2 and the force output component 90, along the rotation axis L2 / L9, when the driving force receiver 2c is not opposite to the exposure port 931 but opposite to the driving force output component 94, the driving force receiver 2c can be guided into the exposure port 931 by the guide surface 942, or the driving force receiver 2c can enter the exposure port 931 by the contact between the adjustment surface 2c1 and the driving force output component 94.

[0072] Preferably, the push surface 2d1 is set as a whole plane extending along the rotation direction r9, so that when the coupling 2 and the force output member 90 begin to contact, the push surface 2d1 can abut against the braking force output member 95 along the rotation direction r9, regardless of the phase of the braking force output member 95.

[0073] [Example 2]

[0074] Figure 7 This is a perspective view of the coupling involved in Embodiment 2 of the present invention; Figure 8 A and Figure 8 B is a schematic diagram of the connection process between the coupling and the force output component involved in Embodiment 2 of the present invention.

[0075] As described above, in Embodiment 1, the pusher 2d is configured to extend and retract relative to the base 2a / substrate 2b along the rotation axis L2, that is, the pusher 2d is movably disposed in the base 2a. The difference between this embodiment and Embodiment 1 is that the pusher 2d is fixedly connected to the base 2a / substrate 2b, and along the rotation axis L2, the height of the pusher 2d protruding relative to the base 2a / substrate 2b is less than the height of the driving force receiving member 2c protruding relative to the base 2a / substrate 2b. Preferably, the protrusion height of the pusher 2d is 1mm-2mm, or in other words, along the rotation axis L2, the shortest distance between the pusher surface 2d1 on the pusher 2d and the base 2a / substrate 2b is 1mm-2mm. The other structures of the coupling 2 are the same as in Embodiment 1, and will not be described again here.

[0076] like Figure 7 As shown, the pusher 2d is configured as a protrusion extending from the base 2a / substrate 2b along the rotation axis L2, but the protrusion height of the pusher 2d is less than the protrusion height of the driving force receiver 2c. Along the radial direction of the coupling 2, the pusher 2d is located inside the driving force receiver 2c, that is, the driving force receiver 2c is farther away from the rotation axis L2 than the pusher 2d. Preferably, the end face of the pusher 2d forms a pusher surface 2d1.

[0077] Combination Figure 8 A and Figure 8 B. During the engagement of coupling 2 and force output component 90, when the driving force receiving component 2c directly enters the exposed port 931, along the rotation direction r9, the driving force output surface 941 will directly face the driving force receiving surface 2c3. At the same time, the pusher 2d forces the braking force output component 95 to retract into the sleeve cavity 930 along the rotation axis L9. The second elastic pusher 933 is compressed. Under the elastic force of the first elastic pusher 932, along the direction intersecting with the rotation axis L2 / L9, the driving force output surface 941 and the driving force receiving surface 2c3 coincide and maintain a stable engagement. Coupling 2 can rotate along the rotation direction r9 with the force output component 90.

[0078] During the engagement of coupling 2 with force output component 90, when the driving force receiving component 2c does not directly enter the exposure port 931 but abuts against the driving force output component 94, under the combined action of elastic component 2e and first elastic pushing component 932, as the force output component 90 rotates, the driving force receiving component 2c will be guided by the guiding surface 942 or adjusting surface 2c1 to enter the exposure port 931. Thus, the braking force output component 95 is pushed into the sleeve cavity 930 by the pushing component 2d and retracts. Along the rotation direction r9, the driving force output surface 941 will directly face the driving force receiving surface 2c3, or in other words, along the direction intersecting with the rotation axis L9, the driving force output surface 941 and the driving force receiving surface 2c3 coincide and maintain a stable engagement. Coupling 2 can rotate along the rotation direction r9 with the force output component 90.

[0079] During the engagement of the coupling 2 with the force output component 90, at least a portion of the pusher 2d will enter between multiple drive force output components 94. Therefore, along the radial direction of the coupling 2, the maximum dimension d2 of the pusher 2d at least at the end in the +x direction must not exceed 11mm. Specifically, the maximum dimension d2 of the pusher surface 2d1 formed in the pusher 2d does not exceed 11mm; when the pusher 2d is set as a cylinder, the cross-sectional diameter d2 of the pusher 2d does not exceed 11mm.

[0080] In the above embodiments, the driving force receiver 2c can be fixedly disposed relative to the base 2a / substrate 2b, or it can be movably disposed relative to the base 2a / substrate 2b. For example, the driving force receiver 2c is integrally formed with the base 2a / substrate 2b, or the driving force receiver 2c is separately formed with the base 2a / substrate 2b, but the driving force receiver 2c and the base 2a / substrate 2b are fixedly connected by means of opening, bonding, etc., or an elastic element is provided between the driving force receiver 2c and the base 2a / substrate 2b. In this case, the driving force receiver 2c can be fixedly disposed relative to the base 2a / substrate 2b. The power receiver 2c can move relative to the base 2a / substrate 2b. Preferably, the driving force receiver 2c is set to move relative to the base 2a / substrate 2b along the rotation axis L2. Obviously, the driving force receiver 2c that is movable relative to the base 2a / substrate 2b can obtain greater installation freedom and has better applicability. During the process of coupling 2 and force output member 90, even if the driving force receiver 2c abuts against the driving force output member 94, coupling 2 and force output member 90 can be successfully coupled.

[0081] As described above, before the coupling 2 is engaged with the force output component 90, regardless of whether the height of the pusher 2d protruding relative to the base 2a / base plate 2b along the rotation axis L2 is set to 1mm-7mm or 1mm-2mm, it can ensure that the braking force output component 95 is pushed / retracted a certain distance into the sleeve cavity 930 by the pusher 2d. This distance allows the braking force output component 95 to disengage from the intermediate transmission component 96, and the braking force output component 95 as a whole can rotate freely relative to the sleeve body 935. This can be understood as the coupling 2 and the force output component 90 being engaged. Before assembly, the height of the pusher 2d protruding from the base 2a / substrate 2b should be at least 1 mm. Along the rotation axis L2, the pusher surface 2d1 of the pusher 2d can be set to be farther away from the base 2a / substrate 2b than the highest point P of the driving force receiver 2c, or it can be set to be closer to the base 2a / base plate 2b than the highest point P of the driving force receiver 2c. Alternatively, along the rotation axis L2, the pusher surface 2d1 can also be set to be equidistant from the base 2a / substrate 2b by the highest point P of the driving force receiver 2c.

[0082] Furthermore, during the engagement of coupling 2 with force output component 90, along the rotation axis L2 / L9, when the driving force output component 2c cannot be aligned with the exposed port 931, the pusher 2d abuts against the braking force output component 95, which can pre-position coupling 2, or in other words, form a pre-engagement between coupling 2 and force output component 90 to ensure that the relative positions of coupling 2 and force output component 90 do not change. Correspondingly, the risk of damage to the braking force output component is greatly reduced. Along the rotation axis L2 / L9, when the driving force output component 2c is aligned with the exposed port 931, the pusher can directly reach the position where it can receive driving force from the driving force output component. At this time, along the rotation direction r9, the driving force receiving surface 2c3 and the driving force output surface 941 are located on the same circumference, and the two can abut against each other or separate from each other.

[0083] [Example 3]

[0084] Figure 9 This is a perspective view of the coupling involved in Embodiment 3 of the present invention; Figure 10 This is a perspective view of the coupling according to Embodiment 3 of the present invention after a portion has been removed; Figure 11A This is a side view viewed along a direction perpendicular to the axis of rotation of the coupling involved in Embodiment 3 of the present invention; Figure 11B This is a side view taken along the rotation axis of the coupling involved in Embodiment 3 of the present invention.

[0085] Based on the inventive concept of the above embodiments, this embodiment further optimizes the structure of the coupling 2 so that the coupling 2 and the force output component 90 can be smoothly combined. For example... Figure 9As shown, the coupling 2 still includes a base 2a, a base plate 2b, a driving force receiving member 2c, and a pushing member 2d. Similar to the above embodiment, the base plate 2b can be omitted, or the base plate 2b is formed integrally with the base 2a. Along the rotation axis L2, a boss 2b2 is also provided between the base plate 2b and the pushing member 2d to make the coupling 2 more widely applicable. Therefore, the boss 2b2 can also be omitted, or the boss 2b is formed integrally with the base 2a.

[0086] The following description uses a boss 2b2 as an example. The pusher 2d protrudes from the boss 2b2 in a direction away from the base 2a. That is, the pusher 2d is directly or indirectly connected to the base 2a. Multiple driving force receivers 2c are arranged at intervals along the rotation direction r2. Along the radial direction of the coupling 2, each driving force receiver 2c is further away from the rotation axis L2 than at least a part of the pusher 2d.

[0087] Unlike the above embodiments, the coupling 2 involved in this embodiment also includes guide members 2f. The number of guide members 2f corresponds to the number of driving force receivers 2c. Therefore, multiple guide members 2f are also arranged at intervals along the rotation direction r2. Preferably, at least two guide members 2f and two driving force receivers 2c are provided. The two guide members 2f are distributed opposite each other in the radial direction of the coupling 2, and the two driving force receivers 2c are distributed opposite each other in the radial direction of the coupling 2. More preferably, at least four guide members 2f and four driving force receivers 2c are provided. The four guide members 2f are distributed opposite each other in pairs in the radial direction of the coupling 2, and the two driving force receivers 2c are distributed opposite each other in pairs in the radial direction of the coupling 2. Along the radial direction of the coupling 2, the guide members 2f are closer to the rotation axis L2 than the driving force receivers 2c, and the guide members 2f and the driving force receivers 2c are spaced apart from each other in the radial direction.

[0088] During the engagement of coupling 2 and force output component 90, guide component 2f is used to guide brake force output component 95, so that brake force output component 95 is pushed / forced by push surface 2d1 to ensure that drive force output component 94 can be smoothly engaged with drive force receiving component 2c, or in other words, to ensure that drive force output surface 941 and drive force receiving surface 2c3 are smoothly opposite or abutted along the rotation direction r2.

[0089] Coupling 2 is also provided with a positioning hole 2d2 to allow the positioning protrusion 934 to enter, such as Figure 9 As shown, the positioning hole 2d2 is provided on the push member 2d. Therefore, the positioning hole 2d2 can also be regarded as being provided in the push member 2d. The plurality of guide members 2f are arranged along the circumferential direction of the positioning hole 2d2.

[0090] Specifically, the guide member 2f is also provided with a guide surface 2f1 that is inclined relative to the rotation axis L2. The guide surface 2f1 can be set as an inclined plane or a spiral surface. When measured along the rotation axis L2, the distance from the guide surface 2f to the surface protruding from the guide member 2f (the push surface 2d1 mentioned above or the first push surface 2d11 mentioned below) gradually decreases along the rotation direction r2. Along the rotation direction r2, the guide member 2f also has a first rear end surface 2f3 located upstream (facing upstream) and a first front end surface 2f2 located downstream (facing downstream) in the rotation direction. At least a portion of the first front end surface 2f2 of each guide member (upstream guide member) and at least a portion of the first rear end surface 2f3 on the guide member adjacent to and downstream of the guide member (downstream guide member) are distributed on the same circumference, forming a first clamping space J1 between them. It can be seen that the first clamping space J1 is located between two adjacent guide members. Preferably, the first rear end face 2f3 and the first front end face 2f2 are located at the upstream end and downstream end of the guide member 2f, respectively; for example Figure 11B As shown, when a circle C1 is drawn with the point through which the rotation axis L2 passes as the center, the circle C1 will simultaneously pass through the first front end face 2f2 of the upstream guide and the first rear end face 2f3 of the downstream guide. In some embodiments, the circle C1 also passes through the second jacking surface 2d12. The guide 2f and the first jacking surface 2d12 at least partially overlap in the rotation direction r2.

[0091] The driving force receiving member 2c includes a base 2c0 and a driving force receiving part 2c4 protruding from the base 2c0. The driving force receiving surface 2c3 is provided at least on the driving force receiving part 2c4. Along the rotation axis L2, the driving force receiving part 2c4 protrudes from the base 2c0 in a direction away from the base 2a (+x direction). Similarly, the driving force receiving member 2c is also provided with the aforementioned adjustment surface 2c1. Along the radial direction of the coupling 2, the adjustment surface 2c1 is located outside the guide surface 2f1.

[0092] During the engagement of coupling 2 and force output component 90, guide surface 2f1 is used to guide the second braking force output component 95b / second braking force output part 95b1. In this embodiment, adjustment surface 2c1, in addition to abutting against driving force output component 94 to realize the entry of driving force receiving component 2c into exposure port 931, can also be used to guide the first braking force output component 95a / second braking force output part 95a1, and can also realize the entry of driving force receiving component 2c into exposure port 931. Finally, along the rotation direction r2, driving force receiving component 2c can engage with driving force output component 94, or in other words, along the rotation direction r2, driving force receiving surface 2c3 is opposite to or abuts against driving force output surface 941. Therefore, guide surface 2f1 and adjustment surface 2c1 have at least some of the same functions. Guide surface 2f1 can also be called second adjustment surface, and adjustment surface 2c1 can be called first adjustment surface. Alternatively, guide surface 2f1 can be called second guide surface, and adjustment surface 2c1 can also be called first guide surface.

[0093] As described above, the adjustment surface 2c1 is also set as an inclined surface or a spiral surface that is inclined relative to the rotation axis L2. Specifically, the inclination direction or spiral direction of the adjustment surface 2c1 can be described as follows: when measured along the rotation axis L2, the distance from the adjustment surface 2c1 to the surface protruding from the driving force receiving part 2c4 (the push surface 2d1 mentioned above or the second push surface 2d12 mentioned below) gradually decreases along the rotation direction r2.

[0094] (Structure of the jacking component)

[0095] The pusher 2d is formed as a protrusion protruding from the base 2c0. Its specific protrusion shape should not be limited, as long as the pusher 2d can perform the following pushing / forcing function.

[0096] The pusher 2d has a pusher surface 2d1 facing the +x direction. The pusher surface 2d1 is used to push the braking force output member 95, so that the braking force output member 95 rotates relative to the driving force output member 94 / sleeve 93. Thus, along the rotation direction r2, the driving force output member 94 is opposite to or abuts against the driving force receiver 2c.

[0097] According to the structure of the braking force output component 95, the push surface 2d1 includes a first push surface 2d11 and a second push surface 2d12 distributed along the radial direction of the coupling. The first push surface 2d11 is located outside the second push surface 2d12, meaning the first push surface 2d11 is further away from the rotation axis L2 than the second push surface 2d12. When viewed along a direction perpendicular to the rotation axis of the coupling 2, the first push surface 2d11 and the second push surface 2d12 can be either staggered or flush. The first push surface 2d11 is used to engage with the first braking force output component. 95a abuts, and the second pushing surface 2d12 is used to abut with the second braking force output component 95b; as described above, when either the first braking force output component 95a or the second braking force output component 95b receives a force along the +x direction, the braking force output component 95 as a whole can move along the rotation axis L9 in the +x direction, that is, the braking force output component 95 as a whole moves into the sleeve cavity 930. Therefore, at least one of the first pushing surface 2d11 and the second pushing surface 2d12 needs to be provided, or in other words, the first pushing surface 2d11 and the second pushing surface 2d12 are combined into one.

[0098] The driving force receiving member 2c can also be disposed on the boss 2b2, thereby the driving force receiving member 2c is directly or indirectly connected to the base 2a. The base 2c0 extends from the boss 2b2, and the portion of the push member 2d used to form the first push surface 2d11 can also coincide with the base 2c0. That is to say, the first push surface 2d11 can be disposed on the base 2c0 or on a component different from the base 2c0. Obviously, it is more beneficial to simplify the structure of the coupling 2 by disposing of the first push surface 2d11 on the base 2c0. When the first push member 2d11 and the second push... When surfaces 2d12 are combined into one, the structure of coupling 2 can be further simplified. At this time, the driving force receiving component 2c is further away from the rotation axis L2 than a part of the pushing component 2d. Therefore, the relationship between the driving force receiving component 2c and the pushing component 2d can be summarized as follows: along the radial direction of the coupling, the driving force receiving component 2c is further away from the rotation axis of the coupling than at least a part of the pushing component 2d, as described in Embodiment 1. This arrangement not only avoids interference between the driving force receiving component 2c and the pushing component 2d and the braking force output component 95, but also protects the pushing component 2d by the driving force receiving component 2c.

[0099] In this embodiment, the guide member 2f extends from the pusher member 2d along the rotation axis L2 in a direction away from the base 2a. Along the radial direction of the coupling 2, the driving force receiver 2c is located outside the guide member 2f, meaning the driving force receiver 2c is further away from the rotation axis L2 of the coupling 2 than the guide member 2f. Along the radial direction of the coupling 2, the driving force receiver 2c and the guide member 2f are spaced apart. This not only simplifies the structure of the coupling 2, but also reduces or eliminates interference between the engagement of the driving force receiver 2c and the force output member 90, and between the guide member 2f and the force output member 90, during the engagement of the coupling 2 and the force output member 90. For each pair of driving force receivers 2c and guide members 2f, along the rotation direction r2, at least a portion of the guide member 2f / guide surface 2f1 is always located upstream of the driving force receiver 2c / driving force receiving surface 2c3. Figure 11B As shown, with the point through which the rotation axis L2 passes as the center, a first line k1 is formed by the center and the upstream point M of the guide surface 2f, and a second line k2 is formed by the center and the upstream point N of the driving force receiving surface 2c3. The first line k1 is upstream of the second line k2, and the angle between the two can vary within the range of 0°-10°. It should be understood that the first line k1 can also be a line through the center and the upstream of the guide surface 2f1, and the second line k2 can also be a line through the center and the upstream of the guide surface 2c3.

[0100] like Figure 11A As shown, when viewed along a direction perpendicular to the rotation axis L2, at least a portion of the guide surface 2f1 is higher than the adjustment surface 2c1, or in other words, at least a portion of the guide surface 2f1 is farther away from the boss 2b2 / base 2a / rotating body than the adjustment surface 2c1. This causes the guide surface 2f1 to contact the braking force output member 95 earlier than the adjustment surface 2c1. Specifically, the guide surface 2f1 contacts the second braking force output member 95b earlier than the adjustment surface 2c1 contacts the first braking force output member 95a. This structure helps prevent the braking force output member 95 and the driving force receiving member 2c from abutting each other in the direction of the rotation axis L2, or helps prevent the first braking force output member 95a from interfering with the driving force receiving surface 2c3.

[0101] Furthermore, when viewed along a direction perpendicular to the rotation axis L2, at least a portion of the guide surface 2f1 is higher than the pushing surface 2d1, or in other words, at least a portion of the guide surface 2f is further away from the boss 2b2 / base 2a / rotating body than the pushing surface 2d1. This causes the guide surface 2f1 to contact the braking force output member 95 earlier than the pushing surface 2d1. Under this inventive concept, the guide member 2f can also extend from the boss 2b2 along the rotation axis L2 in a direction away from the base 2a. Along the rotation direction r2, the guide member 2f and the pushing member 2d1... A gap can also be formed between them, as long as the braking force output member 95 can be guided to the push surface 2d1 (second push surface 2d12) by the guide surface 2f1; similarly, a gap can also be formed between the push member 2d and the driving force receiver 2c along the rotation direction r2, as long as the braking force output member 95 can be guided to the push surface 2d1 (first push surface 2d11) by the adjustment surface 2c1. Therefore, the protrusion 2c6 forming the first push surface 2d11 and the base 2c0 of the driving force receiver can be formed integrally or spaced apart from each other.

[0102] When the protrusion 2c6 is integrally formed with the base 2c0, the structure of the coupling 2 will be simplified. The following description takes the integral formation of the protrusion 2c6 and the base 2c0 as an example. It should be understood that even if there is a gap between the protrusion 2c6 and the base 2c0, the protrusion 2c6 and the base 2c0 should be considered as a whole based on the inventive concept of the present invention.

[0103] Along the rotation direction r2, the driving force receiver has a second front end face 2c5 located downstream (facing downstream) and a second rear end face located upstream (facing upstream) in the rotation direction. At least a portion of the second front end face 2c5 of each driving force receiver (upstream driving force receiver) and at least a portion of the second rear end face on the guide (downstream driving force receiver) adjacent to and downstream of the driving force receiver are distributed on the same circumference, forming a second clamping space J2. Thus, the second clamping space J2 is located between two adjacent driving force receivers. Preferably, the second front end face 2c5 and the first rear end face are located at the upstream and downstream ends of the driving force receiver 2c, respectively. Depending on the structural design of the driving force receiver 2c, the second rear end face can have multiple options; preferably, the second rear end face is a driving force receiving face 2c3. Figure 11B As shown, when a circle C2 is drawn with the point through which the rotation axis L2 passes as the center, the circle C2 will simultaneously pass through the second front end face 2c5 of the upstream driving force receiver and the second rear end face 2c3 of the downstream driving force receiver. In some embodiments, the circle C2 also passes through the first jacking surface 2d11, and the driving force receiver 2c and the first jacking surface 2d11 at least partially overlap in the rotation direction r2.

[0104] When viewed along a direction perpendicular to the axis of rotation L2, the driving force receiving member 2c / driving force receiving surface 2c3 / adjusting surface 2c1 is farther away from the boss 2b2 / base 2a / rotating body than the pushing member 2d / pushing surface 2d1. This makes the pushing surface 2d1 abut more tightly against the braking force output member 95, or in other words, the braking force output member 95 is more stably pushed to the predetermined position by the pushing surface 2d1.

[0105] (The process of connecting the coupling to the force output component)

[0106] Figures 12A-12C This is a schematic diagram of the connection process between the coupling and the force output component involved in Embodiment 3 of the present invention.

[0107] As described above, after the processing box 100 reaches the predetermined installation position of the imaging device, as the door closes, the force output member 90 begins to extend along the rotation axis L9 in the -x direction, as... Figure 12A As shown, as coupling 2 begins to abut against force output member 90, guide surface 2f1 abuts against second braking force output member 95b / second braking force output part 95b1, and drive force receiving member 2c does not abut against first braking force output member 95a / first braking force output part 95a1. At this time, along the rotation axis L2, a gap g is formed between drive force receiving member 2c and first braking force output member 95a / first braking force output part 95a1. As force output member 90 continues to extend, through the abutment of guide surface 2f1 against second braking force output member 95b / second braking force output part 95b1, the entire braking force output member 95 is pushed along the rotation direction r2 / r9 and gradually moves away from drive force output member 94, as... Figure 12B As shown, as the second braking force output member 95b / second braking force output part 95b1 continues to be guided by the guide surface 2f1, the first braking force output member 95a / first braking force output part 95a1 begins to abut against the adjustment surface 2c1. Finally, the first braking force output member 95a and the second braking force output member 95b respectively reach the following positions: Figure 12C At the position shown, the first pushing surface 2d11 abuts against the first braking force output member 95a / first braking force output part 95a1, and / or the second pushing surface 2d12 abuts against the second braking force output member 95b / second braking force output part 95b1. That is to say, at least one of the following is sufficient: the first pushing surface 2d11 abuts against the first braking force output member 95a / first braking force output part 95a1 and the second pushing surface 2d12 abuts against the second braking force output member 95b / second braking force output part 95b1. The braking force output member 95 retracts into the sleeve cavity 930 as a whole. Along the rotation direction r9, the braking force output member 95 and the driving force output member 94 / sleeve 93 can rotate relative to each other. The driving force output member 94 is opposite to or abuts against the driving force receiving member 2c, or in other words, the driving force output surface 941 is opposite to or abuts against the driving force receiving surface 2c1.

[0108] Furthermore, in Figure 12C In the shown state, the second braking force output component 95b enters the first clamping space J1. At this time, along the rotation direction r2, the first front end face 2f2 and the first rear end face 2f3 simultaneously abut against the first braking force output component 95b. The driving force output component 94 enters the second clamping space J2. At this time, along the rotation direction r2, the second front end face 2c5 and the second rear end face 2c3 simultaneously abut against the driving force output component 94. Therefore, the second braking force output component 95b is positioned, and the first braking force output component 95a is positioned simultaneously with the second braking force output component 95b. The driving force output component 94 is also positioned, and any possible shaking of the entire force output component 90 is suppressed. The coupling 2 and the force output component 90 can be stably coupled. Under this inventive concept, the guide component 2f and the driving force receiving component 2c are both set to at least four. In this way, when the coupling 2 and the force output component 90 begin to engage, regardless of the phase of the coupling 2, the two can be successfully coupled.

[0109] Conversely, without considering the positioning of the second braking force output member 95b and the positioning of the driving force output member 94, the guide member 2f can be configured as two, and the driving force receiver member 2c can also be configured as two.

[0110] It should be noted that the moment when the first pushing surface 2d11 abuts against the first braking force output component 95a, and / or the moment when the second pushing surface 2d12 abuts against the second braking force output component 95b, and the moment when the coupling 2 and the force output component 90 are fully engaged do not necessarily correspond. The moment when the coupling 2 and the force output component 90 are fully engaged can refer to either the driving force output surface 941 being opposite the driving force receiving surface 2c1 along the rotation direction r9, or the driving force output surface 941 abutting against the driving force receiving surface 2c1. However, after the coupling 2 and the force output component 90 are fully engaged, the first pushing surface 2d11 and the first braking force output component 95a remain in abutting state, and / or the second pushing surface 2d12 and the second braking force output component 95b remain in abutting state. Furthermore, along the rotation axis L9 of the force output component 90, the braking force output component 95 and the driving force output component 94 are disengaged. Thus, along the rotation direction r9, the braking force output component 95 cannot be driven by the driving force output component 94.

[0111] As described above, after the coupling 2 involved in this embodiment is combined with the force output component 90, the braking force output component 95 in the force output component 90 no longer outputs braking force to the coupling 2. The structure of the coupling 2 can be simplified, and its production precision requirements can be reduced. At the same time, the risk of damage to the braking force output component is greatly reduced during the combination process of the coupling 2 and the force output component 90.

Claims

1. A coupling for receiving a driving force from a force output component disposed in an imaging device to drive a rotating body to rotate, said force output component having a braking force output component and a driving force output component disposed coaxially; Its features are, The coupling includes a drive force receiving component and a pushing component; The driving force receiver is used in conjunction with the driving force output to receive the driving force that drives the rotating body to rotate. The pusher is used to abut against the braking force output component; When viewed along a direction perpendicular to the axis of rotation of the coupling, the driving force receiving element is further away from the rotating body than the pushing element.

2. The coupling according to claim 1, characterized in that, Along the radial direction of the coupling, the driving force receiving part is further away from the axis of rotation of the coupling than at least a portion of the jacking part.

3. The coupling according to claim 1, characterized in that, The pusher has a pusher surface for forcing the braking force output component, and the coupling also includes a guide component that guides the braking force output component toward the pusher surface during the coupling's engagement with the force output component.

4. The coupling according to claim 3, characterized in that, Along the radial direction of the coupling, the driving force receiving element is further away from the axis of rotation of the coupling than the guiding element.

5. The coupling according to claim 3, characterized in that, Along the direction of rotation of the coupling, the driving force receiving part and the jacking part at least partially overlap.

6. The coupling according to claim 3, characterized in that, The jacking member includes a first jacking surface and a second jacking surface distributed along the radial direction of the coupling. The first jacking surface is located outside the second jacking surface. Along the rotation direction of the coupling, the first jacking surface at least partially overlaps with the driving force receiving member, and the second jacking surface at least partially overlaps with the guide member.

7. The coupling according to claim 3, characterized in that, The guide member is provided with a first guide surface for guiding the braking force output member, and the driving force receiver is provided with a second guide surface for guiding the braking force output member. When viewed along a direction perpendicular to the rotation axis of the coupling, at least a portion of the first guide surface is further away from the rotating body than the second guide surface.

8. The coupling according to claim 3, characterized in that, The guide member is provided with a first guide surface for guiding the braking force output member, and the driving force receiving member has a driving force receiving surface for receiving the driving force. When viewed along the rotation axis of the coupling, the included angle between the line connecting the upstream point or line of the first guide surface and the center of the circle and the line connecting the upstream point or line of the driving force receiving surface and the center of the circle is in the range of 0°-10°.

9. The coupling according to claim 3, characterized in that, The driving force receiver has a driving force receiving surface for receiving driving force, and at least a portion of the guide is located upstream of the driving force receiving surface along the rotation direction of the coupling.

10. The coupling according to any one of claims 3-9, characterized in that, Multiple guide members and multiple drive force receivers are arranged at intervals along the rotation direction of the coupling. A first clamping space is formed between two adjacent guide members, and a second clamping space is formed between two adjacent drive force receivers. The first clamping space is used to allow the braking force output member to enter, and the second clamping space is used to allow the drive force output member to enter.

11. The coupling according to claim 10, characterized in that, There are four guide elements and four drive force receivers.

12. A rotating component, characterized in that, The rotating component includes a rotating body and a coupling as described in any one of claims 1-11, wherein the coupling is coaxially arranged with the rotating body.

13. A processing box, characterized in that, The processing box includes a housing and a rotating member as described in claim 12, the rotating member being rotatably disposed within the housing.

14. A processing box, characterized in that, The processing box includes a housing, a rotating body rotatably mounted in the housing, a coupling as described in any one of claims 1-11, and a driving force transmission device disposed between the coupling and the rotating body, wherein the coupling and the rotating body are not coaxial, and the driving force of the coupling is transmitted to the rotating body through the driving force transmission device.

Images