A kind of powder box for electro photography imaging and its repositioning method of detection gear
Technical field
The present invention relates to a kind of electrophotographic imaging forming apparatus (as laser printer, photocopier, facsimile machine etc.), more particularly, to
A kind of powder box for electro photography imaging and its repositioning method of detection gear.
Background technology
In a kind of electrophotographic imaging forming apparatus of prior art such as laser printer, employ one kind is used for whether identifying powder box
For the technology using first, the testing agency that this technology is passed through on powder box starts the Resetting Switching on printer, and makes printer
The storage element of upper storage type information resets, so that the cpu on printer can calculate the service life of printer, United States Patent (USP)
Publication number us5,430,780 disclose technique, and in this patent, teeth parts (f1) and its ledge (f1b) are above-mentioned
Testing agency.
In this technology, before powder box is installed to printer, teeth parts (f1) need to keep engaging with gear mechanism (ge), then
After powder box is installed on printer, the ledge (f1b) on teeth parts (f1) is connect with the Resetting Switching (r) on printer
Touch, rotate in drive lower gear element (f1) of gear mechanism (ge), the rotation of ledge (f1b) starts Resetting Switching (r)
To reset the storage information on printer.
But this technology there is problems in that
Ledge (f1b), after being disengaged with Resetting Switching (r), is no longer contacted with Resetting Switching, and such electronics shines
Phase imaging device just cannot detect whether used powder box is installed in place it is impossible to point out operator to be modified;
When powder box before use, need to ensure that teeth parts (f1) are engaged with gear mechanism (ge), powder box use after ability
Normal work, this proposes higher requirement to the assembling of powder box, once powder box assembling process middle gear element (f1) and gear
Mechanism (ge) departs from, then powder box cannot make the Resetting Switching normal work on printer, and the storage information on printer cannot weigh
Put.After powder box is recovered, the difficulty resetting and being accurately positioned said gear element is also larger, if teeth parts and gear
The state of mechanism's engagement is undesirable, just cannot make Resetting Switching normal work.
Furthermore, it is contemplated that the factor such as Resetting Switching susceptiveness on printer, testing agency need to ensure abundant with Resetting Switching
Contact, so that Resetting Switching energy normal work;Specifically can be using the side controlling testing agency and Resetting Switching time of contact
Formula is realized, and testing agency is longer for time of contact with Resetting Switching, lower to the sensitivity requirements of Resetting Switching, and this is just to detection
Mechanism proposes higher requirement.
Content of the invention
The present invention provides a kind of powder box for electro photography imaging, to solve existing powder box for electro photography imaging
Reset detection gear trouble, existing powder box for electro photography imaging can not accurately detect that powder box is after Resetting Switching replacement
No it is installed in place and the technical problem high to the sensitivity requirements of Resetting Switching.
In order to solve above technical problem, the present invention adopts the technical scheme that:
A kind of powder box for electro photography imaging, including powder box main body, drive gear set and detection gear;Described detection
Gear includes ledge and gear parts, it is characterized in that, described ledge is arranged on cylinder, cylinder is additionally provided with scarce
Mouthful, the angle between described breach and gear parts is b, and the angle between the both sides of described breach is c.
Described gear parts only set up separately in the circumferential upper part of detection gear to be put, described gear parts and described drive gear set
One of gear engagement, described electrophotographic imaging forming apparatus are provided with Resetting Switching;In described drive gear set and gear
Under part drives, described ledge is contacted with Resetting Switching on described electrophotographic imaging forming apparatus or does not contact.
Installation detection piece is additionally provided with described detection gear, described installation detection piece is in described ledge through described
Described Resetting Switching is touched, described ledge and installation detection piece are arranged on same cylinder after primary importance and the second position
On, Resetting Switching is successively contacted with ledge, breach, installation detection piece in powder box work process.
Described b is 150 ° -170 °, and described c is 60 ° -80 °.
Described b is 155 ° -165 °, and described c is 65 ° -75 °.
When breach is around ledge center of rotation rotated counterclockwise by angle h, that is, the breach on ledge is to gear parts
Angle between high order end gear is b-h, when the angle between agitating element gear and gear parts high order end gear is l, h and l's
Relation meets relationship below: l/h=z1/z2, and wherein z1 is the reference diameter of detection gear gear part, and z2 is stirring
The reference diameter of element gear;Agitating element gear is not engaged with gear parts, and breach under powder box original state not with
Resetting Switching contacts.
A kind of powder box for electro photography imaging, including powder box main body, drive gear set and detection gear;Described detection
Gear includes ledge and gear parts, and described gear parts are engaged with one of described drive gear set gear, thus
Detection gear is made to rotate to last position from initial position;It is provided with Resetting Switching, its feature on described electrophotographic imaging forming apparatus
It is: described powder box also includes flexible member, described flexible member one end is abutted with powder box main body, the other end is supported with detection gear
Connect, thus detection and localization gear, described need to be continued rotation detection gear and can reset to initially detection gear from last position
Position.
Described detection gear also comprises position portion, and described flexible member one end abuts with powder box main body, the other end and calmly
Bit position abuts, thus detection and localization gear.
Described position portion comprises two projections becoming involute shape composition with respect to described detection gear axis.
Described position portion is " d " shape projection, and the straight flange of described " d " shape is abutted with flexible member realizes determining of detection gear
Position, when the periphery of " d " shape is abutted with flexible member, detection gear can arbitrarily rotate.
Described position portion includes locating dowel and two projections, and described projection is arranged on the circumference of locating dowel.
Described powder box also comprises protection cap, and described elastomeric element is the cantilever of setting in protection cap, and protection cap is arranged on powder
On the side wall of box main body.
Described detection gear also comprises position portion, and described position portion includes locating dowel and two grooves, and described groove sets
Put on the circumference of locating dowel.
Described elastomeric element is the cantilever of setting on detection gear.
Described powder box also comprises protection cap, and described protection cap includes position portion, and described position portion comprises two grooves.
Employ technique scheme, because ledge is arranged on cylinder, cylinder is additionally provided with breach, described
Angle between breach and gear parts is b, and the angle between the both sides of described breach is c, makes ledge and Resetting Switching
Contact and the separation time extend, thus having reduced to the sensitivity requirements of Resetting Switching the existing electrophotographic imaging forming apparatus of solution
With the powder box technical problem high to the sensitivity requirements of Resetting Switching.It is additionally provided with installation detection piece due on detection gear, peace
Dress detection piece touches Resetting Switching in ledge after primary importance and the second position moreover it is possible to detection powder box is in Resetting Switching
Whether it is installed in place after replacement.Finally, due to powder box also includes flexible member, flexible member one end is abutted with powder box main body, separately
One end is abutted with detection gear, thus detection and localization gear, only need to continue rotation detection gear can be by detection gear from last position
Put and reset to initial position, make detection reset gear easier.Solve existing powder box for electro photography imaging detection tooth
The wheel troublesome technical problem of reset.
Brief description
Fig. 1 is the schematic perspective view of the adopted powder box of the present invention;
Fig. 2 front view in the state of removing protection cap by the adopted powder box of the present invention;
Fig. 3 front view in the state of removing drive gear set by the adopted powder box of the present invention;
Fig. 4 a, 4b be respectively the present invention adopted detect gear on ledge upward, position portion solid upward
Schematic diagram;
Fig. 4 c by the present invention employing detect gear front view;
Fig. 5 is the front view of the present invention adopted agitating element gear;
Fig. 6 a, 6b, 6c, 6d are respectively on the adopted powder box of the present invention and detect work from original state to end-state for the gear
Make view;
Fig. 7 a is the front view of another embodiment of the present invention adopted agitating element gear;
Fig. 7 b is by detecting the working state schematic representation of gear on the adopted powder box of another embodiment of the present invention;
Fig. 8 a by the third embodiment of the present invention employing detect gear schematic perspective view;
Fig. 8 b, 8c are respectively the third embodiment institute of the present invention and are respectively at detected state using detection gear on powder box
It is not detected the position view under state;
Fig. 8 d is that in the third embodiment of the present invention, agitating element gear is in the schematic diagram under another state;
Fig. 9 a and Fig. 9 b by the embodiment of the present invention four employing detect gear schematic perspective view;
Figure 10 a, Figure 10 b, Figure 10 c and Figure 10 d are by detecting the worked of gear on the adopted powder box of the embodiment of the present invention four
Journey schematic diagram;
Figure 11 is the schematic perspective view of the adopted powder box of the embodiment of the present invention five;
Figure 12 by the embodiment of the present invention five employing detect gear schematic perspective view;
Figure 13 is the axonometric chart of the adopted protection cap of the embodiment of the present invention five;
Figure 14 a and Figure 14 b is by detecting the working state schematic representation of gear on the adopted powder box of the embodiment of the present invention five.
Specific embodiment
To explain the content of the invention of the present invention with reference to the accompanying drawings and examples, present invention institute is only used for solving using embodiment
Release the content of the invention of the present invention, be not limited to the present invention.
Embodiment one:
The present invention includes developing element, powder feeding element, agitating element and carbon dust using powder box a;Described carbon dust is stored
In powder box, in powder box work process, agitating element stirs carbon dust, and carbon dust is conveyed to powder feeding element, and powder feeding element exists
Contact with developing element in work process, and carbon dust is conveyed to developing element, make to adhere to charged toner on developing element.
It is illustrated in figure 1 the schematic perspective view of the present invention adopted powder box a, Fig. 2 show the powder box a after removing protective cover
Front schematic view;As shown in Figure 1, 2, powder box a also includes powder box main body 1, drive gear set 2, detection gear 3 and protection cap 5;Powder
Carbon dust is accommodated in box main body 1;Drive gear set 2 and detection gear 3 are arranged on the side wall of powder box main body 1;Protection cap 5 fills
Fit over drive gear set 2 and the outside of detection gear 3, that is, protection cap is arranged on the side wall of powder box main body 1, and is used for protecting
Drive gear set 2 and detection gear 3.
Drive gear set 2 include developing element gear 2a, the first idle pulley 2b, powder feeding element gear 2c, the second idle pulley 2d and
Agitating element gear 2e;Developing element gear 2a, powder feeding element gear 2c and agitating element gear 2e are respectively assembled on powder box a
The rotary shaft of developing element, powder feeding element and agitating element on, and be respectively developing element, powder feeding element, agitating element pass
Pass driving force;When powder box a is installed to and works in electrophotographic imaging forming apparatus, the first idle pulley 2b receives and is derived from electrophotographic image forming
The driving force of device, is connected with the other gears in drive gear set 2 by mode as shown in Figure 1, 2, transmits drive force to
Said gear, and so that developing element, powder feeding element and agitating element is rotated.
As shown in Figure 2, detection gear 3 is engaged with agitating element gear 2e, and receives driving from agitating element gear 2e
Power rotates (direction of arrow rotates counterclockwise as shown in FIG.);On detection gear 3 one side outwardly be provided with ledge 3a and
Detection piece 3d is installed, between ledge 3a and installation detection piece 3d, is formed with interval;It is provided with electrophotographic imaging forming apparatus
Resetting Switching 10;During detection gear 3 receives from the driving force of drive gear set 2 and rotates, ledge 3a with
Resetting Switching 10 contacts (primary importance) or departs from (second position), makes to store the storage of type information on electrophotographic imaging forming apparatus
Memory cell resets, so that electrophotographic imaging forming apparatus detect this powder box, whether a is new powder box, and make electrophotographic imaging forming apparatus
On cpu calculate electrophotographic imaging forming apparatus service life;After ledge 3a is departed from Resetting Switching 10, detect gear
3 are rotated further, and so that installation detection piece 3d is contacted with Resetting Switching 10, even if so that powder box a remains to after multiple installation
Detected by electrophotographic imaging forming apparatus.Above-mentioned ledge 3a, the connection installed between detection piece 3d and Resetting Switching 10 are closed
System can be summarized simply as follows " contact-do not contact-contact " three kinds of states.
Fig. 3 is the powder box a front schematic view after removing drive gear set 2 shown in Fig. 2 and detection gear 3;Can by figure
Know, powder box main body 1 is provided with agitating element gear locating dowel 1a, detection gear locating dowel 1b, flexible member locating dowel 1c and
Force column 1d;Agitating element gear locating dowel 1a and detection gear locating dowel 1b are respectively used to support described agitating element gear 2e
With detection gear 3;Flexible member 4 is additionally provided with powder box a, flexible member 4 is supported in flexible member locating dowel 1c, elasticity
One end of element 4 is abutted with force column 1d, and the other end is abutted with the position portion (not shown) on detection gear 3, makes inspection
Survey gear 3 to be positioned in assembling process.
As shown in Fig. 4 a, 4b be respectively detection gear on ledge upward, position portion schematic perspective view upward;
Fig. 4 c is the front view of detection gear;As seen from the figure, detection gear 3 includes ledge 3a, gear parts 3b, position portion 3c
With installation detection piece 3d;Ledge 3a, installation detection piece 3d are protruding from detection gear, in powder box a work process
Contact or depart from (not contacting) with Resetting Switching 10;The gear parts 3b circumferential upper part in detection gear sets up separately puts, gear part
Divide 3b to engage with agitating element gear 2e in powder box a work process or depart from, and driving is received from agitating element gear 2e
Power, when gear parts 3b is not engaged with agitating element gear 2e, detection gear 3 is not rotated further by;Position portion 3c be set to as
Involute shape shown in figure, so that position portion 3c is abutted with flexible member 4 when powder box a assembles, makes detection gear 3 position
In pre-engagement state;Known by Fig. 4 c, near gear part on gear parts 3b most upstream in the counterclockwise direction and ledge 3a
The angle being formed between the projection divided is r, and in the present embodiment, r is 55 ° -65 °, is preferred with 60 °.It is illustrated in figure 5 agitating element
The front schematic view of gear 2e, agitating element gear 2e is distributed as upper and lower two-stage, and subordinate's (part being relatively large in diameter) is used for and drive
The second idle pulley 2d in moving gear group 2 engages and transmits power, and higher level's (less part of diameter) is engaged with detection gear 3, is
Detection gear 3 provides driving force.
Heretofore described testing agency includes ledge 3a, gear parts 3b, installs detection piece 3d and location structure,
In the present embodiment, described location structure is position portion 3c and flexible member 4.
As Fig. 6 a, 6b, 6c, 6d are respectively the powder box a detecting gear 3 by pre-engagement state (original state) to end-state
The partial enlarged drawing of front schematic view.
When powder box a is when producing, position portion 3c on detection gear 3 is in state shown in Fig. 6 a (just with flexible member 4
Beginning position), one end 4a of flexible member 4 is abutted with force column 1d, and other end 4b is abutted with position portion 3c on detection gear,
And providing elastic force for detection gear 3, flexible member 4 is that detection gear 3 positions, and prevents from detecting that gear 3 is producing assembling process
Middle rotation, is effectively guaranteed production quality, improves production efficiency, and now detection gear 3 is in pre-engagement state (tooth
Wheel part 3b is in engagement with agitating element gear 2e);When the powder box a having not been used is installed to electrophotographic image forming
When on device, the ledge 3a on detection gear 3 contacts (first with the Resetting Switching 10 on electrophotographic imaging forming apparatus
Put), so as electrophotographic imaging forming apparatus powder box a is detected installed.After powder box a is installed in place, drive gear set 2 connects
Receive the driving force on electrophotographic imaging forming apparatus, and drive detection gear 3 to rotate, detection gear 3 overcomes flexible member 4 to carry
For elastic-restoring force, turn to engagement shown in Fig. 6 b from pre-engagement state shown in Fig. 6 a, now another on flexible member 4
One end 4b keeps abutting with position portion 3c;Under state shown in Fig. 6 b, ledge 3a will depart from (second with Resetting Switching 10
Position).
When detecting pinion rotation to state shown in Fig. 6 c, the ledge 3a on detection gear 3 is taken off with Resetting Switching 10
From, Resetting Switching 10 can't detect the presence of ledge 3a, now flexible member 4 still with detection gear on position portion 3c
Keep abutting.
Tooth when detecting that gear 3 turns to state shown in Fig. 6 d (last position) with drive gear set 2, on detection gear 3
Wheel part 3b is disengaged from agitating element gear 2e, and detection gear 3 no longer rotates with drive gear set 2, now flexible member 4
There is provided elastic force for position portion 3c on detection gear 3, so that detection gear 3 is maintained at state shown in Fig. 6 d, detect gear 3
On installation detection piece 3d and Resetting Switching 10 keep contacting, to allow electrophotographic imaging forming apparatus the presence of powder box a is detected.
Powder box a after said process no longer is detected as using first by electrophotographic imaging forming apparatus.
When powder box a is in state as shown in fig 6d, because agitating element gear 2e will not invert in the course of the work, because
This detection gear 3 is not in the phenomenon of reversion (being rotated clockwise along in figure), and the elastic force providing in flexible member 4
Under effect, powder box a is also not susceptible to ectocine and inverts.When used powder box a tears open from electrophotographic imaging forming apparatus
After unloading down, and when being reinstalled as quickly as possible on electrophotographic imaging forming apparatus, detection piece 3d is installed and contacts with Resetting Switching, so that powder
Box a can be detected by electrophotographic imaging forming apparatus.
After position portion 3c of the present embodiment and flexible member 4, when powder box a using complete after, again reclaimed again
Using when, only detection gear 3 need to be detected gear along (counterclockwise) rotation of rotation direction shown in Fig. 2, so that detection gear 3 is replied
Pre-engagement state shown in Fig. 6 a, then it is packed into appropriate carbon dust by powder box a, this powder box a can reuse;Increased
After stating position portion 3c and flexible member 4, make the recycling of powder box a easier, without professional tool or professional behaviour
Work can complete to detect the positioning of gear 3.
The shape of described position portion 3c can also be that any one can realize the shape of positioning with flexible member 4 cooperation,
As " d " shape, when position portion 3c is " d " shape, the straight flange of described " d " shape is abutted with flexible member 4 realizes determining of detection gear
Position, when the periphery of " d " shape is abutted with flexible member, detection gear can arbitrarily rotate.
Those of ordinary skill in the art be easy for it is contemplated that, for realize detection gear 3 be accurately positioned on powder box a,
Described location structure can also be any one damping unit, and this damping unit can make detection gear 3 be positioned at powder box main body
Nonvoluntary rotation in part 1, and engaging of agitating element gear 2e and detection gear 3 can overcome the resistance of damping unit and make
Detection pinion rotation.
Embodiment two:
In the present embodiment, it is not repeated to describe with embodiment one identical structure or work process here.
From unlike embodiment one, as shown in Figure 7a, higher level's gear of agitating element gear 22e only circumferentially part
Setting teeth, higher level's gear is engaged with detection gear 3;As shown in Figure 7b, powder box is in original state (state during production);When
When agitating element gear 22e is in diagram state, higher level's gear of agitating element gear 22e not with detection gear 3 on gear
Part engages, agitating element gear 22e after the driving force receiving on the electrophotographic imaging forming apparatus rotates, described higher level
Gear again with detection gear 3 engage and drive detection gear 3 rotate, therefore in powder box work process detection gear 3 not with drive
Moving gear group 2 synchronous axial system.Because the Resetting Switching on electrophotographic imaging forming apparatus has certain susceptiveness demand, therefore it is required that powder
Detection gear 3 on box a and Resetting Switching 10 kept after contact condition certain time, and electrophotographic imaging forming apparatus just can detect
Whether powder box is installed in place, or detects whether this powder box is new, to calculate the service life of electrophotographic imaging forming apparatus;Stir
The higher level's gear mixing element gear 22e only circumferentially partly arranges teeth, can give to detect gear sufficient time and weight
Put switch contact, switch can be reset to detect.
Those of ordinary skill in the art be easy for it is contemplated that, because agitating element gear 22e is in the course of the work along Fig. 7 b
Shown rotationally clockwise, therefore when powder box produces assembling, higher level's gear of agitating element gear 22e is set to along suitable
Clockwise away from the position engaged of gear parts 3b on detection gear 3, connecing of detection gear 3 and Resetting Switching can be made
The tactile time is longer it is ensured that powder box can be detected by electrophotographic imaging forming apparatus and so that Resetting Switching is worked.
Embodiment three:
In the present embodiment, it is not repeated to describe with embodiment two identical structure or work process here.
Fig. 8 a show the schematic perspective view that the present embodiment is adopted detection gear 33;It is provided with prominent on detection gear 33
Part 33a, breach 33b and installation detection piece 33d;Ledge 33a is arranged on same cylinder with installing detection piece 33d, circle
The outer surface of post is contacted with Resetting Switching 10 in powder box work process, so that powder box a can be detected by electrophotographic imaging forming apparatus
Arrive;Breach 33b on ledge 33a is arranged on the cylindrical surface of ledge 33a.
When untapped powder box is installed on electrophotographic imaging forming apparatus, detection gear 33 is in state shown in Fig. 8 b,
Ledge 33a is contacted with Resetting Switching 10, so that powder box is detected by electrophotographic imaging forming apparatus;When detection gear 33 rotates
To breach 33b contact with Resetting Switching 10 when, detection gear 33 be in state shown in Fig. 8 c, now powder box a is not by electrofax
Imaging device detects;When detection gear 33 is turned to installation detection piece 33d and contacted with Resetting Switching 10, powder box is shone by electronics
Phase imaging device detects, and powder box keeps this state up to end-of-life.
When agitating element gear 22e low order end is just engaged with gear parts 3b high order end, as shown in figure 8b, project
Breach 33b in part 33a is b to the angle between gear parts 3b high order end gear, between this angle b is 150-170 °, relatively
Excellent is 155 ° -165 °, is optimal with 160 °;The angle on breach 33b both sides is c, and this angle c is 60-80 °, more excellent be 65 °-
75 °, be optimal with 70 °;This angle b can ensure to detect that gear 33 is enough long with the time of contact of Resetting Switching 10, so that by electronics
Electrophotographic imager detects;Angle c can ensure to detect that gear 33 is enough long with the time that Resetting Switching departs from, so that electrofax
Imaging device is not detected by powder box, lowers the sensitivity requirements to Resetting Switching on electrophotographic imaging forming apparatus;Work as agitating element
When gear 22e is no longer engaged with gear parts 3b, detection piece 33d is installed and still contacts with Resetting Switching 10, so that powder box can be electric
Sub- electrophotographic imager detects, and normal work.
Certainly, the breach 33b on ledge 33a and the angle of gear parts 3b high order end suitably can make change,
When breach 33b is around ledge 33a center of rotation rotated counterclockwise by angle h, that is, the breach 33b on ledge 33a is to gear
Angle between part 3b high order end gear is b-h, and as shown in figure 8d, then agitating element gear 22e low order end needs rotate counterclockwise
Angle l, so as Resetting Switching 10 can with the relation of Fig. 8 b embodiment identical time detecting to breach 33b, h and l meet with
Lower relational expression: l/h=z1/z2, wherein z1 are the reference diameter of detection gear gear part 3b, z2 is agitating element gear
The reference diameter of 22e;In the present embodiment, z1 is optimal with 44, and z2 is optimal for 28;Certainly, in the present embodiment, need to meet
Another one condition is: agitating element gear 22e is not engaged with gear parts 3b, and breach 33b under powder box original state not
Contact with Resetting Switching.
Example IV:
In the present embodiment, it is not repeated to describe with embodiment one identical structure or work process here.
From unlike embodiment one, as shown in figures 9 a and 9b, testing agency comprises to detect gear 31;Detection gear 31
Comprise ledge 31a, gear parts 31b, position portion 31c and detection piece 31d is installed;The position portion of detection gear 31
31c includes locating dowel 311c and two projections, and projection is arranged on the circumference of locating dowel 311c, and described projection is by with respect to described
Detection gear 31 axle center becomes involute shape composition, and a projection comprises contact surface 31c1With contact surface 31c3, another projection comprises
Contact surface 31c2.As shown in Figure 10 a, described testing agency also comprises flexible member 41;Now detection gear 31 is in initial bit
Put, one end 41a of flexible member 41 is abutted with force column, other end 41b is abutted with position portion 31c of detection gear 31, from
And make detection gear 31 and agitating element gear 2e pre-engagement;The now ledge 31a of detection gear 31 and Resetting Switching 10
Contact.
As shown in Figure 10 a and Figure 10 d, the position of the detection gear 31 shown in Figure 10 a is initial position, shown in Figure 10 d
The position of detection gear 31 is last position, and during detection gear 31 is driven, detection gear 31 rotates along direction of rotation e, from
And make the initial position that the ledge 31a on detection gear 31 is contacted with Resetting Switching 10 rotate to the peace on detection gear 31
The last position that dress detection piece 31d is contacted with Resetting Switching 10;In the process, ledge 31a and installation detection piece 31d difference
Successively contact with Resetting Switching 10.When detection gear 31 is in initial position, one end 41b and contact surface 31c of flexible member 411
Abut, elastomeric element 41 is in tensioned state, make detection gear 31 have the trend rotating along direction of rotation e, and and agitating element
Gear 2e pre-engagement, thus there is the trend driving agitating element gear 2e, but due to the driving resistance between drive gear set relatively
Greatly, the elastic force of elastomeric element 41 is not enough to drive drive gear set, and therefore elastomeric element and drive gear set will detect gear
31 are positioned at and agitating element gear 2e pre-engagement position.Detection gear 31 from initial position to Figure 10 b shown in position mistake
Cheng Zhong, one end 41b of flexible member 41 from contact surface 31c1Involute abut mobile to abutting with locating dowel 311c, prominent
Part 31a departs from (not contacting) with Resetting Switching 10.Detect gear 31 during Figure 10 b to Figure 10 c, flexible member 41
One end 41b from abut with the circumference of locating dowel 311c mobile to contact surface 31c2Abut, detection piece 31d and Resetting Switching are installed
10 come into contact with.Detection gear 31 during Figure 10 c to Figure 10 d, one end 41b of flexible member 41 from contact surface 31c2
Mobile to contact surface 31c3Abut, detection piece 31d is installed and contacts with Resetting Switching 10.Detection gear 31 is in shown in Figure 10 d
During last position, one end 4b and contact surface 31c of flexible member 412With contact surface 31c3Abut, now detection gear 31 and stirring unit
Part gear 2e does not engage;Elastomeric element 41 is applied to contact surface 31c2Make (the torsion that direction of rotation e) rotates counterclockwise of detection gear
Square, is applied to contact surface 31c3Make detection gear 31 clockwise between rotation moment of torsion, both cancel out each other thus detection and localization
Gear 31.
In powder box recycling, detection gear 31 is reset to initial position from last position, only need to overcome elasticity unit
The clockwise moment of torsion to detection gear 31 for the part 41.Only need to rotate along direction of rotation e shown in figure in the present embodiment
Detection gear 31, causes flexible member 41 elastic deformation, makes one end 41b and contact surface 31c of flexible member 412Depart from, elasticity
One end 41b of element 41 only with contact surface 31c3Abut, then 41b is along contact surface 31c3Involute move, final and contact surface
31c1Abut, thus overcoming the restraining forceies to detection gear 31 for the flexible member 41, you can so that detection gear 31 is resetted from last position
To initial position.
In the present embodiment, in initial position, described ledge 31a can also be taken off detection gear 31 with Resetting Switching 10
From (second position);Under the driving of agitating element gear 21e, ledge 31a and Resetting Switching 10 contact (from departing from
One position) arrive disengaging (second position) again, it is summarized simply as follows " departing from-contact-to depart from ".
Embodiment five:
In the present embodiment, it is not repeated to describe with example IV identical structure or work process here.
As shown in figure 12, detection gear 35 comprises ledge 35a, gear parts 35b, position portion 35c and installs inspection
Survey part 35d;Position portion 35c of detection gear 35 includes locating dowel 351c and two grooves, and groove is arranged on locating dowel 351c
Circumference on, described groove by with respect to described detection gear 35 axle center become involute shape form, a groove has contact surface
35c1, another groove has contact surface 35c2.As shown in figure 13, protection cap 55 contains and has elastic component 45, and flexible member 45 comprises to dash forward
Play 451, described protection cap comprises opening 551, flexible member 45 is the cantilever in protection cap 55, and flexible member 45 is in protection cap 55
Upper flexible restoring force.The installation site of detection gear 35 and protection cap 55 is as shown in figure 11.
As shown in Figure 14 a and Figure 14 b, detection gear 35 rotates to last position along direction of rotation e from initial position;Detection tooth
When wheel 35 is located at initial position, ledge 35a contacts with Resetting Switching 10, projection 451 and contact surface 35c1Abut, from depending on
Position detection gear 35;When detection gear 35 is driven to rotate, contact surface 35c1Apply a radial component to projection 451, make elasticity
Element 45 elastic deformation, so that projection 451 is radially away from contact surface 35c1Abut with locating dowel 351c;When detection gear 35
When last position, dress detection piece 35d contacts with Resetting Switching 10, projection 451 and contact surface 35c2Abut, thus detection and localization tooth
Wheel 35.Detection gear 35 during rotating to last position from initial position, projection 451 respectively with contact surface 35c1, positioning
Post 351c and contact surface 35c2.In powder box recycling, when needing reset detection gear 35, only need to use hand propelled flexible member
45, make projection 451 away from contact surface 35c2;Then detect that gear 35 continues to rotate to initial bit along direction of rotation e with hand-motion
Put;Finally loose one's grip, in the presence of flexible member 45, make projection 451 and contact surface 35c1Abut, thus detection and localization gear
35.
The present embodiment reset detection gear 35 can also directly drive detection gear 35 to continue rotation along direction of rotation e with handss
Turn, now by the contact surface 35c of detection gear 352Abut with projection 451, thus driving elastomeric element 45 in detection gear 35
Radially away from detection gear 35;Loose one's grip when rotating to initial position, in the presence of flexible member 45, projection 451 is to detection
Gear 35 is close, and with contact surface 35c1Abut, thus detection and localization gear 35.Two grooves of position portion in the present embodiment
Under the view of Figure 14 a and Figure 14 b, the relative contact surface with the right side of projection 451 of groove is compared with the contact surface gentle transition in left side
To on the circumference of locating dowel 351c of position portion 35c, the arm of force of clockwise direction moment of torsion is made to be less than counter clockwise direction moment of torsion
The arm of force, so that the required power that resets is less..
From the present embodiment, also can be by the location swap of flexible member and the contact surface of groove, i.e. flexible member setting
On detection gear, the contact surface of groove is arranged in protection cap;Described flexible member is the elastic cantilever on detection gear, with
Shi Suoshu groove also can be changed to through hole.