CN107831645A - Rotary driving force receiving member, drive component and box - Google Patents
Rotary driving force receiving member, drive component and box Download PDFInfo
- Publication number
- CN107831645A CN107831645A CN201711345885.9A CN201711345885A CN107831645A CN 107831645 A CN107831645 A CN 107831645A CN 201711345885 A CN201711345885 A CN 201711345885A CN 107831645 A CN107831645 A CN 107831645A
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- driving force
- rotary driving
- receiving member
- force receiving
- composition surface
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- 210000000078 claw Anatomy 0.000 claims abstract description 68
- 239000000203 mixture Substances 0.000 claims abstract description 50
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000007774 longterm Effects 0.000 abstract description 3
- 239000000843 powder Substances 0.000 description 8
- 238000003384 imaging method Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
Classifications
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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
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/75—Details relating to xerographic drum, band or plate, e.g. replacing, testing
- G03G15/757—Drive mechanisms for photosensitive medium, e.g. gears
-
- 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
- G03G21/1803—Arrangements or disposition of the complete process cartridge or parts thereof
- G03G21/1814—Details of parts of process cartridge, e.g. for charging, transfer, cleaning, developing
-
- 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
- G03G21/1842—Means for handling the process cartridge in the apparatus body for guiding and mounting the process cartridge, positioning, alignment, locks
- G03G21/1853—Means for handling the process cartridge in the apparatus body for guiding and mounting the process cartridge, positioning, alignment, locks the process cartridge being mounted perpendicular to the axis of the photosensitive member
-
- 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
-
- 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
- G03G21/186—Axial couplings
Abstract
The present invention relates to a kind of rotary driving force receiving member, drive component and box, the rotary driving force receiving member has at least one engaging claw for being formed and engaging the axially external spherical concave surface in head at it and stretched out in its axial direction from engagement head；Wherein, engaging claw has the first composition surface and the second composition surface, and the second composition surface is located on the direction of rotation of rotary driving force receiving member the upstream side on the first composition surface in the outside for being radially located at the first composition surface of rotary driving force receiving member；And wherein, the first angle between the rotary shaft of the first composition surface and rotary driving force receiving member is less than the second angle between the second composition surface and the rotary shaft of rotary driving force receiving member.When the state of rotary driving force receiving member drive shaft in electrophotographic image forming main body of the present invention changes because of reasons such as long-term uses, remain able to stably receive driving force from drive shaft.
Description
Technical field
The present invention relates to electrophotographic image forming field；More particularly, be related to it is a kind of be used for from electrofax into
As the rotary driving force receiving member of reception driving force including its drive component in equipment body and it is removably installed in electricity
Box in sub- photograph imaging device main body.
Background technology
Such as the image-forming principle of the electrophotographic image forming of laser printer is, the photographic department in such as photosensitive drums first
Uniform charging on part, then photosensitive-member is exposed with laser beam so that the electric charge of photosensitive-member surface exposure part
Disappear, non-exposure part is still carried electric charge and forms electrostatic latent image, then provided carbon dust to photographic department using developer roll
The carbon dust on photosensitive-member surface is finally transferred on print media, and pass through heating by part surface again with the electrostatic latent image that develops
It is fixed, so as to form stable image on the print medium.
Photosensitive drums and/or developer roll and its periphery processing elements/devices are generally integrated in and are removably installed in electronics photograph
In the box of phase imaging equipment body, this box can provide in a different manner.For example, by photosensitive drums and act on photosensitive drums
Charging device and cleaning device, developer roll and act on the powder feeding roller of developer roll and powder feeding scraper is all integrated in a box and
Form integral box；By photosensitive drums and act on the charging device of photosensitive drums and cleaning device integrates and forms bulging box, will
Developer roll and act on the powder feeding roller of developer roll and powder feeding scraper integrates and forms Delevoping cartridge.No matter box in which way
There is provided, the part for needing to rotate in the course of the work due to wherein containing developer roll and/or photosensitive drums etc., therefore be required for from
Rotary driving force is received in electrophotographic image forming main body.
Chinese patent literature CN102067044A discloses a kind of electrophotographic image forming and is removably installed in electricity
Handle box in sub- photograph imaging device main body；There is drive shaft as shown in Figure 1 in the electrophotographic image forming main body
100, the free end portion 100a of drive shaft 100 has surface generally spherical in shape, and with the rotation as revolving force applying portion
Power passing pin 100b.Handle box has photosensitive drum component 21 as shown in Figure 2, and it includes photosensitive drums 20 and is arranged on photosensitive drums 20
The coupled components 156 (drive component) of axial end portion, coupled components 156 have be used for in electrophotographic image forming main body
The universal joint coupler member 150 (rotary driving force receiving member) that drive shaft 100 engages, electrofax is attached in handle box
When being dismantled in imaging equipment body or from electrophotographic image forming main body, relative to the axial direction of photosensitive drums 20, coupler member
150 tilt to side, are interfered with avoiding being formed with drive shaft 100.Coupler member 150 couples with drive shaft 100 and receives driving
Power, to drive photosensitive drums to rotate, other processing components are then transferred a driving force to etc. by gear train etc..But this universal joint
The coupler member 150 of formula easily comes off from coupled components 156, so as to can not stably transmit driving force.
The problem of being easy to come off for universal joint rotary driving force receiving member, rotary driving force is received in some boxes
Component is configured to move back and forth along its rotation axis.Wherein, when installing or removing box, rotary driving force receiving member and electronics
Drive shaft in photograph imaging device abuts, along its rotation axis to box medial motion to avoid interfering with drive shaft, box installation
When in place, cause rotary driving force receiving member to box movement outside using spring or air pressure mode and engaged with drive shaft.In
State patent document CN102096352A discloses the example of this box, wherein, the end of rotary driving force receiving member is integratedly
Formed with two engaging claws.However, due to rotary driving force receiving member axial movement by electrophotographic image forming its
The limitation of his structure, and two engaging claws are fixedly disposed, and cause box to be not easy smoothly to dismantle.If strength loads or taken out
Box, then it can produce rotary driving force receiving member and unstable risk is engaged with drive shaft, can not stably transmit driving force.
In order to solve the problem, Chinese patent literature CN106444321A discloses a kind of drive component and Delevoping cartridge, should
Drive component includes the cylindrical element and connector being coaxially disposed；Wherein, it is respectively arranged with active force dress on cylindrical element and connector
Put, connector includes the sleeve and guide rod being coaxially disposed, and the end set of guide rod there are two engaging claws, with the outside axle of guide rod
To movement, the engaging claw that sleeve is limited becomes big with respect to the maximum deflection angle of the axis of guide rod, axial direction of the engaging claw along guide rod
Outstanding distance diminishes.When Delevoping cartridge is dismantled out of electrophotographic image forming main body, engaging claw relative drive shaft fortune
Dynamic, drive shaft forces engaging claw to deflect, and engaging claw can be avoided to be formed with drive shaft and interfered, facilitate the dismounting of Delevoping cartridge.
However, the inventors discovered that, because electrophotographic image forming main body has the service life for being longer than box, therefore
When the state of drive shaft in electrophotographic image forming main body changes because of reasons such as long-term uses, above-mentioned patent document
The problem of rotary driving force receiving member can not stably receive driving force from drive shaft be present in disclosed various boxes.
The content of the invention
The main object of the present invention is to provide a kind of rotary driving force receiving member, and it is even in electrophotographic image forming
When the state of drive shaft changes because of reasons such as long-term uses in main body, remain able to receive driving from drive shaft is stable
Power.
Another object of the present invention is to provide a kind of drive component, and it is not only easy to tear open from electronic photographing device main body
Unload, and can stably receive driving force from drive shaft.
The third object of the present invention is to provide a kind of box for including above-mentioned drive component.
In order to realize above-mentioned main purpose, the first aspect of the present invention provides a kind of rotary driving force receiving member, tool
There is at least one engagement to be formed and engage the axially external spherical concave surface in head at it and stretched out in its axial direction from engagement head
Pawl；Wherein, engaging claw has the first composition surface and the second composition surface, radial direction of second composition surface in rotary driving force receiving member
The upper outside for being located at the first composition surface, and positioned at the upstream on the first composition surface on the direction of rotation of rotary driving force receiving member
Side；And wherein, the first angle between the first composition surface and the rotary shaft of rotary driving force receiving member engages less than second
The second angle between the rotary shaft of face and rotary driving force receiving member.
A preferred embodiment of the invention, the first angle are more than 0 ° and less than 45 °, and the second angle is more than 15 °
And less than 60 °.It is highly preferred that the first angle is more than 10 ° and less than 40 °, the second angle is more than 25 ° and less than 60 °；It is further excellent
Selection of land, the first angle are more than 15 ° and less than 30 °, and the second angle is more than 35 ° and less than 50 °.
In accordance with another preferred embodiment of the present invention, the ratio of the second angle and the first angle is more than 1.5 and is less than
2.5；It is highly preferred that the ratio of the second angle and the first angle is more than 1.5 and less than 2.0.
According to the further embodiment of the present invention, the quantity of engaging claw is two, and two engaging claws are in engaging head
The circumferentially-spaced of portion is equably set.
In the present invention, engaging claw both can be as disclosed in CN106444321A relative to engagement head it is deflectable set
Put, can also be as disclosed in CN102096352A be fixedly connected with that (such as engaging claw is with engaging head integratedly with engaging head
Formed).
In order to realize above-mentioned another object, the second aspect of the present invention provides a kind of drive component, including：
Cylindrical element, gear is provided with its outer wall；
Rotary driving force receiving member, set with being reciprocally moveable along the axial direction of cylindrical element；
Wherein, rotary driving force receiving member includes：
Sleeve, there is the connection end in cylindrical element and the engagement head outside cylindrical element, engagement head tool
There is the stopper slot to form the axially spherical concave surface in outside and radially extend inwardly to spherical concave surface；
Guide rod, set with being reciprocally moveable along the axial direction of sleeve, have positioned at barrel bore first end and can be from set
The second end that tube inner chamber stretches out；
Biasing force applies part, is arranged in sleeve, for applying the active force away from engagement head to guide rod；
Engaging claw, is pivotably connected to the second end of guide rod, and stretches out in and connect from stopper slot in the axial direction of sleeve
Syncephalon portion；
Wherein, engaging claw has the first composition surface and the second composition surface, and the second composition surface is in rotary driving force receiving member
The outside for being radially located at the first composition surface, and be located at the first composition surface on the direction of rotation of rotary driving force receiving member
Upstream side；And wherein, the first angle between the rotary shaft of the first composition surface and rotary driving force receiving member is less than the
The second angle between the rotary shaft of two composition surfaces and rotary driving force receiving member.
In a kind of preferred embodiment of above-mentioned drive component, the first angle is more than 0 ° and less than 45 °, and the second angle is big
In 15 ° and less than 60 °.It is highly preferred that the first angle is more than 10 ° and less than 40 °, the second angle is more than 25 ° and less than 60 °；Enter
Preferably, the first angle is more than 15 ° and less than 30 ° one step, and the second angle is more than 35 ° and less than 50 °.
In another preferred embodiment of above-mentioned drive component, the ratio of the second angle and the first angle be more than 1.5 and
Less than 2.5；It is highly preferred that the ratio of the second angle and the first angle is more than 1.5 and less than 2.0.
In the further embodiment of above-mentioned drive component, the quantity of engaging claw is two, and two engaging claws exist
Engagement the circumferentially-spaced of head is equably set.
In order to realize the 3rd above-mentioned purpose, the third aspect of the present invention provides a kind of box, and it is removably installed in
In electrophotographic image forming main body, including developer roll and/or photosensitive drums and any one above-mentioned drive component；Wherein,
Drive component receives rotary driving force from electrophotographic image forming main body, and directly or indirectly drive developer roll and/or
Photosensitive drums rotate.
In order to more clearly illustrate the objects, technical solutions and advantages of the present invention, below in conjunction with the accompanying drawings and specific embodiment party
The present invention is described in further detail for formula.
Brief description of the drawings
Fig. 1 is the structure chart of drive shaft in existing electrophotographic image forming main body；
Fig. 2 is a kind of structure chart of existing photosensitive drum component；
Fig. 3 a-d are to represent in existing box the revolving force passing pin of engaging claw and drive shaft from electrophotographic image forming
Depart from the schematic diagram of process when box is dismantled in main body；
Fig. 4 a be represent when the revolving force passing pin of drive shaft is in normal condition in the box of prior art engaging claw with
The schematic diagram of engagement state between revolving force passing pin；
Fig. 4 b are to represent when the revolving force passing pin of drive shaft is in abnormal condition engaging claw in the box of prior art
The schematic diagram of engagement state between revolving force passing pin；
Fig. 5 is the structure decomposition figure of drive component embodiment of the present invention；
Fig. 6 is the sectional view of drive component shown in Fig. 5；
Fig. 7 is the stereogram of rotary driving force receiving member in drive component shown in Fig. 5；
Fig. 8 is the structure decomposition figure of rotary driving force receiving member in drive component shown in Fig. 5；
Fig. 9 is the stereogram of engaging claw in rotary driving force receiving member shown in Fig. 7；
Figure 10 is the lateral plan of engaging claw in rotary driving force receiving member shown in Fig. 7.
Embodiment
For the ease of understanding the present invention, below first to the box disclosed in CN102096352A and CN106444321A from electricity
A kind of disengaging process when sub- photograph imaging device main body is taken out between engaging claw and rotary driving force passing pin illustrates.
The box that Fig. 3 a to Fig. 3 d schematically depict disclosed in CN102096352A and CN106444321A was taking out
The engaging claw 11 ' of rotary driving force receiving member 10 ' and the rotation driving of drive shaft in electrophotographic image forming main body in journey
Disengaging process between power passing pin 100a, wherein rotary driving force passing pin 100a are substantially vertical with the removing direction D of box.
In the case of rotary driving force passing pin 100a is substantially vertical with the removing direction D of box, although being revolved when taking out box
Turning driving force receiving member 10 ' can be in the presence of the drive shaft towards producing a certain degree of movement on the inside of box, but such as Fig. 3 a-d institutes
Show, generally also require that box is carrying out a certain degree of rotation on the direction of the axis of rotary driving force receiving member 10 ', with
So that engaging claw 11 ' smoothly departs from rotary driving force passing pin 100a.But it is limited in electrophotographic image forming main body
Installing space, box on the direction of the axis of rotary driving force receiving member 10 ' rotatable angle be restricted.
From Fig. 3 a-d, composition surface 111 ' and the rotation axis of rotary driving force receiving member 10 ' when engaging claw 11 '
Angle theta it is bigger when, during box is taken out, box need around rotary driving force receiving member 10 ' rotate angle it is smaller, from
And be advantageous to the taking-up of box.But as shown in Figure 3 a, when the composition surface 111 ' of engaging claw 11 ' is with turning driving force receiving member 10 '
The angle theta of rotation axis is got over hour, and the moment of torsion that rotary driving force passing pin 100a is applied to engaging claw 11 ' is bigger, so as to engage
Pawl 11 ' more stably can receive driving force from drive shaft.
Therefore, in the prior art, the angle between the rotation axis of composition surface 111 ' and rotary driving force receiving member 10 '
θ is arranged in appropriate scope, and so as to which engaging claw 11 ' stably can either receive driving force from drive shaft, box also allows for taking
Go out.
However, the inventors discovered that, even if between the rotation axis of composition surface 111 ' and rotary driving force receiving member 10 '
Angle theta be set and reasonably set, in practice between rotary driving force receiving member 10 ' and drive shaft in some cases still
It so can not stably engage, or even occur being mutually disengaged and skidding between rotary driving force passing pin 100a and engaging claw 11 '
Phenomenon.
By being analysed in depth to above mentioned problem, the inventors discovered that, there is rotary driving force passing pin 100a with connecing
The reason for being mutually disengaged between conjunction pawl 11 ' is that rotary driving force passing pin 100a occurs position and changed on its axis because of loosening
Become so that only have an engaging claw 11 ' to be engaged with rotary driving force passing pin 100a in the incipient stage of box work, and then
So that rotary driving force receiving member 10 ' and/or drive shaft rotate relative to axis because of force unbalance and swung, most
Two engaging claws 11 ' are caused to depart from rotary driving force passing pin 100a eventually.
On the other hand, being illustrated with reference to Fig. 4 a and 4b, Fig. 4 a and 4b are to represent the axle from perpendicular to driving force receiving member 10 '
To the schematic diagram of engagement state between engaging claw 11 ' and revolving force passing pin 100a during observation.Referring first to Fig. 4 a, wherein rotating
Driving force passing pin 100a is in correct position, and two end engages with corresponding engaging claw 11 ' respectively, and respectively to two
Engaging claw 11 ' applies torque T 1 equal in magnitude and in opposite direction so that and rotary driving force receiving member 10 ' normally rotates, from
And it can stably transmit rotary driving force.
Referring next to Fig. 4 b, wherein, rotary driving force passing pin 100a moves because of loosening and along its axis, drive shaft 100
Change with rotary driving force passing pin 100a relative position, only rotary driving force passing pin 100a a end can be with connecing
Close the engagement of pawl 11 ' and apply torque T 1 to the engaging claw, while the spherical free end of drive shaft 100 receives structure with rotary driving force
The spherical concave surface of part 10 ' contacts and produces torque T 2, and torque T 2 is much smaller than torque T 1, so that rotary driving force receives structure
Part 10 ' rotates relative to axis because of force unbalance and swung；Correspondingly, drive shaft 100 is because of rotary driving force reception
The reaction force of component 10 ' and equally rotate relative to axis and swing, ultimately result in two engaging claws 11 ' with rotation
Driving force passing pin 100a departs from.
Based on above-mentioned discovery, present inventors have proposed a kind of improved rotary driving force receiving member, drive component and box.
The box of the present invention can be by photosensitive drums and act on the charging device of photosensitive drums and cleaning device, developer roll and act on this
Integral box that the powder feeding roller and powder feeding scraper of developer roll are all integrated in a box and formed or by photosensitive drums and effect
In the drum box that the charging device and cleaning device of photosensitive drums are integrated and formed, it can also be developer roll and act on aobvious
The Delevoping cartridge that the powder feeding roller and powder feeding scraper of shadow roller are integrated and formed.No matter the box of the present invention is using which kind of integrated side
Formula, the difference of itself and existing box essentially consist in drive component and rotary driving force receiving member therein.Therefore, below only to this
The structure of the drive component of box and rotary driving force receiving member illustrates in invention.
Fig. 5 is the structure decomposition figure as drive component embodiment of the present invention, and Fig. 6 is its sectional view, and Fig. 7 and 8 is wherein
The structure decomposition figure of rotary driving force receiving member.
Referring to Fig. 5 to 8, drive component 10 includes setting cogged cylinder on rotary driving force receiving member 2 and outer wall
Part 1；Wherein, axial direction of the rotary driving force receiving member 2 along cylindrical element 1 is set with being reciprocally moveable, and stretches out the axle of cylindrical element 1
Laterally.
Rotary driving force receiving member 2 includes 3, two engaging claws 21 of guide rod 22, sleeve being coaxially disposed and as bias
Power applies the spring 23 of part.Wherein, the connection end of sleeve 3 is provided with for limiting rotary driving force receiving member 2 towards axial direction
The spacing termination 33 of lateral direction displacement, the spring 31 for applying part as biasing force is provided with cylindrical element 1, spring 31 is to right
Sleeve 3 applies the active force (i.e. towards engagement head 32) axially outward；Restriction protrusion 35 is provided with the outer wall of sleeve 3, circle
The axial outer end of barrier part 1 is provided with limited cover 12, and restriction protrusion 35 is engaged with limited cover 12, to prevent rotary driving force from receiving
Component 2 is deviate from out of cylindrical element 1.
Sleeve 3 also has the connection end in cylindrical element 1 and the engagement head 32 outside cylindrical element 1, engaging head
Portion 32 have formed axially outside spherical concave surface 321 (present invention include be similar to sphere parabola or cambered surface) with
And two stopper slots 322 for radially extending inwardly to spherical concave surface 321, week of two stopper slots 322 on engagement head 32
Set evenly and at intervals upwards.
Axial direction of the guide rod 22 along sleeve 3 is set with being reciprocally moveable, have positioned at the inner chamber of sleeve 3 first end and can be from
The second end that the inner chamber of sleeve 3 is stretched out；Second end is provided with and the pivot of the axis perpendicular of guide rod 22 24, two engaging claws 21
The second end of guide rod 22 can be rotatably mounted at around pivot 24, and engagement is stretched out in from stopper slot 322 in the axial direction of sleeve 3
Head 32.Engagement head 32 can also limit the maximum deflection angle of engaging claw 21 to a certain extent, and then limit engaging claw 21
Axially projecting distance.
The first end of guide rod 22 is provided with the closed end 25 for closing the end seal, applies the bullet of part as biasing force
Spring 23 is arranged in the inner chamber of sleeve 3 and is set on spring 23, and one end of spring 23 abuts with closed end 25, the other end and set
Step wall in cylinder 3 abuts, to apply the active force away from engagement head 32 to guide rod 22.
Relative to the second end of guide rod 22, engaging claw 21 can be relative by engaging claw 21 with respect to the deflection angle of the axis of guide rod 22
The sharp angle α that one plane is formed is defined, and the diameter parallel of the plane and guide rod 22 or includes the axis and and engaging claw
21 faces that are formed when rotating are vertical, in other words the plane include the pivot of engaging claw 21 and with the diameter parallel of guide rod 22 or comprising
The axis.When engaging claw 21 becomes big with respect to the deflection angle α of the axis of guide rod 22, the distance that engaging claw 21 projects axially outward becomes
It is small.
As shown in fig. 7, engaging claw 21 has the first composition surface 211 and the second composition surface 212, the second composition surface 212 is being revolved
Turn the outside for being radially located at the first composition surface 211 of driving force receiving member 2, and in the rotation of rotary driving force receiving member 2
Turn the upstream side for being located at the first composition surface 211 on the R of direction.Fig. 9 is the stereogram of engaging claw 21, wherein clearlying show that
One composition surface 211 and the second composition surface 212.Figure 10 is the lateral plan of engaging claw 21, as shown in Figure 10, the first composition surface 211
The first angle theta 1 between the rotary shaft L of rotary driving force receiving member 2 is less than between the second composition surface 212 and rotary shaft L
The second angle theta 2.
In the present invention, when the revolving force passing pin of drive shaft is in normal position (state as shown in fig. 4 a), revolving force
The both ends of passing pin engage with corresponding first composition surface 211 respectively, can stablize between engaging claw 21 and driving force passing pin
Driving force is reliably transmitted, and box is easy to dismantle from electrophotographic image forming main body.When revolving force passing pin is along its axial direction
When shifting and make it that only an end engages with engaging claw 21 (state as shown in Figure 4 b), the end will be with second
Composition surface 212 engages, because the second angle theta 2 between the second composition surface 212 and rotary shaft L is more than the first composition surface 211 and rotation
The first angle theta 1 between rotating shaft L, therefore as depicted in fig. 3 a, the end applies to the torque T 1 of the engaging claw 21 and will become
It is small, so as to be closer to or be applied equal to the spherical free end of drive shaft to the spherical concave surface of rotary driving force receiving member 10 '
The torque T 2 (as shown in Figure 4 b) added, such rotary driving force receiving member and/or drive shaft will not or only in lower degree
On deflect, driving force substantially can be normally transmitted, so as to solve in the prior art when revolving force passing pin is along its axle
To the skidding that is occurred when only an end engages with engaging claw of shifting and enable.
In the embodiment of the present invention, the first angle theta 1 is more than 0 ° and less than 45 °, and the second angle theta 2 is more than 15 ° and less than 60 °；
Preferably, the first angle is more than 10 ° and less than 40 °, and the second angle is more than 25 ° and less than 60 °；It is highly preferred that the first angle is big
In 15 ° and less than 30 °, the second angle is more than 35 ° and less than 50 °.The ratio of second angle and the first angle is more than 1.5 and is less than
2.5；It is highly preferred that the ratio of the second angle and the first angle is more than 1.5 and less than 2.0.For example, the first angle theta 1 is big
About 25 °, the second angle theta 2 is about 45 °.
It is located at entopic situation for rotary driving force passing pin, the first angle theta 1 is controlled in above range, especially
It is in preferable scope, can either realize more stable driving force transmission, also easily facilitate the dismounting of box.For revolving force
Passing pin is shifted along its axial direction and enables the situation that only an end engages with engaging claw, and the second angle theta 2 is controlled
System can more advantageously cause rotary driving force receiving member and/or drive shaft in above range, especially preferable scope
Will not or only it be deflected in lower degree.
In other embodiments of the invention, engaging claw can be fixedly installed on engagement head, such as engaging claw is with engaging
Head is integrally formed.
In the box of the present invention, drive component may be mounted at developer roll or the longitudinal end of photosensitive drums, to directly drive
Developer roll or photosensitive drums rotation；Drive component can also be arranged on the longitudinal end of box body, and indirect by gear drive
Ground drives developer roll and/or photosensitive drums rotation.
Although depicting the present invention above by preferred embodiment, but it is to be understood that, those of ordinary skill in the art
In the invention scope for not departing from the present invention, all equal improvement made according to the present invention, protection scope of the present invention institute should be
Cover.
Claims (10)
- A kind of 1. rotary driving force receiving member, with formation in the axially external spherical concave surface in its engagement head and axially On from it is described engagement head stretch out at least one engaging claw；Wherein, the engaging claw has the first composition surface and the second engagement Face, second composition surface the rotary driving force receiving member radially be located at first composition surface outside, and It is located at the upstream side on first composition surface on the direction of rotation of the rotary driving force receiving member；It is and wherein, described The first angle between the rotary shaft of first composition surface and the rotary driving force receiving member be less than second composition surface with The second angle between the rotary shaft of the rotary driving force receiving member.
- 2. rotary driving force receiving member as claimed in claim 1, wherein, first angle is more than 0 ° and less than 45 °, institute The second angle is stated more than 15 ° and less than 60 °.
- 3. rotary driving force receiving member as claimed in claim 1, wherein, the ratio of second angle and first angle Value is more than 1.5 and less than 2.5.
- 4. rotary driving force receiving member as claimed in claim 1, wherein, the quantity of the engaging claw is two, this two Engaging claw is equably set in engagement the circumferentially-spaced of head.
- 5. rotary driving force receiving member as claimed in claim 1, wherein, the engaging claw can relative to the engagement head Deflection ground sets or is fixedly connected with the head that engages.
- 6. a kind of drive component, including：Cylindrical element, gear is provided with its outer wall；Rotary driving force receiving member, set with being reciprocally moveable along the axial direction of the cylindrical element；Wherein, the rotary driving force receiving member includes：Sleeve, there is the connection end in the cylindrical element and the engagement head outside the cylindrical element, the engagement Head has the stopper slot for forming the axially spherical concave surface in outside and radially extending inwardly to the spherical concave surface；Guide rod, set with being reciprocally moveable along the axial direction of the sleeve, have positioned at the barrel bore first end and can From the second end that the barrel bore stretches out；Biasing force applies part, is arranged in the sleeve, for applying the effect away from the engagement head to the guide rod Power；Engaging claw, the second end of the guide rod is pivotably connected to, and from the stopper slot in the axial direction of the sleeve Stretch out in the engagement head；Wherein, the engaging claw has the first composition surface and the second composition surface, and second composition surface is in the rotary driving force The outside for being radially located at first composition surface of receiving member, and in the direction of rotation of the rotary driving force receiving member The upper upstream side for being located at first composition surface；And wherein, first composition surface and the rotary driving force receiving member Rotary shaft between the first angle be less than between second composition surface and the rotary shaft of the rotary driving force receiving member The second angle.
- 7. drive component as claimed in claim 6, wherein, first angle is more than 0 ° and less than 45 °, second angle More than 15 ° and less than 60 °.
- 8. drive component as claimed in claim 6, wherein, the ratio of second angle and first angle is more than 1.5 And less than 2.5.
- 9. drive component as claimed in claim 6, wherein, the quantity of the engaging claw is two, and two engaging claws are in institute Engagement the circumferentially-spaced of head is stated equably to set.
- 10. a kind of box, be removably installed in electrophotographic image forming main body, including developer roll and/or photosensitive drums and Drive component as described in any one of claim 6 to 9；Wherein, the drive component is from electrophotographic image forming main body Rotary driving force is received, and directly or indirectly drives the developer roll and/or photosensitive drums to rotate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711345885.9A CN107831645B (en) | 2017-12-15 | 2017-12-15 | Rotational driving force receiving member, driving assembly, and cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711345885.9A CN107831645B (en) | 2017-12-15 | 2017-12-15 | Rotational driving force receiving member, driving assembly, and cartridge |
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| CN107831645A true CN107831645A (en) | 2018-03-23 |
| CN107831645B CN107831645B (en) | 2024-02-20 |
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| CN107831645B (en) | 2024-02-20 |
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