CN103399475A - Developer box - Google Patents
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- CN103399475A CN103399475A CN201310334940XA CN201310334940A CN103399475A CN 103399475 A CN103399475 A CN 103399475A CN 201310334940X A CN201310334940X A CN 201310334940XA CN 201310334940 A CN201310334940 A CN 201310334940A CN 103399475 A CN103399475 A CN 103399475A
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Abstract
The invention discloses a developer box, a first end wall of a box body of the developer box is provided with a transmission gear and a detection device which cooperates with sensors of an image forming device, the detection device comprises a detection wheel and a torsion spring, the detection wheel can be rotatably supported on the first end wall, the torsion spring is used for restoration of the detection wheel, the detection wheel is provided with a tooth-shaped bulge which can be engaged with the transmission gear, and the detection wheel is provided with an elastic trigger for triggering the sensors, and an elastic friction layer for forming friction cooperation with the sensors. According to the developer box, friction buffering can be generated by dynamical friction cooperation between the elastic friction layer of the detection wheel and the transmission gear, so that the detection wheel can fully guarantee that the frictional contact between the elastic trigger and the sensors can be maintained, the contact time between the elastic trigger and the sensors can be prolonged, delay-detection existing in the sensors can be realized, and a central processing unit (CPU) of a laser printer enters into a counting work state to record a working course of the developer box. The detection device has the advantages of simple structure and low manufacture cost.
Description
Technical field
The present invention relates to a kind of developer box for image forming apparatus such as laser printer or duplicating machine.
Background technology
At laser class image forming apparatus, for example, in laser printer, duplicating machine or digital code intergrated machine, be provided with the developing apparatus that the electrostatic latent image that is formed on photosensitive drums is developed, developing apparatus is laid in developer on electrostatic latent image and develops.The developer that consumes that develops is generally provided by developer box, after the developer in developer box is finished, then the developer box that more renews.
Part one and split type developer box are provided with the use condition checkout gear, for the sensor with on image forming apparatus, coordinate, whether to detect the developer box using as new.For example, the CN200720060742.9 Chinese utility model patent discloses a kind of developer box that uses condition checkout gear that is provided with, this developer box comprises powder storehouse, puddle support, powder feeding roller, developer roll and the powder outlet cutter etc. of receiving photographic developer, the end wall of developer box one side is provided with gear drive, for the driving force by the image forming input, passes to puddle support, powder feeding roller and developer roll to carry out work.In a kind of developer box with said structure, be provided with on the end wall of gear drive and also be provided with a pick-up unit, be used to identifying this developer box, whether live through the use state, and trigger the corresponding state sensor that uses in image forming.Above-mentioned detection device comprises that mainly one detects wheel and a torsion spring, this detection wheel is rotatably supported on the back shaft that is fixedly installed on described end wall outside surface, at the detection wheel shaft, on the end face back to described end wall, be fixed with at least two triggering parts, torsion spring is placed on described back shaft, the force arm outer end of its spiral pars intermedia one end forms a crotch section, this crotch section is hooked in from being subjected on the arm of force that the end face that detects the close torsion spring of wheel stretches out, and the other end is pressed against the baffle plate that is formed on the back shaft surrounding.Developer box is before the image forming of packing into uses, and torsion spring is in the state of tightening, and detect wheel, by gear drive, is locked.When developer box is packed image forming into, the first gear in gear drive meshes to drive to detect to take turns by the toothed projections of taking turns with detection and turns over the also disengaging engagement of an angle, torsion spring discharges elastic force to detecting wheel it is rotated further along former direction, while detecting the wheel rotation, by it, trigger part and trigger corresponding use state sensor in image forming, make image forming can identify this developer box and whether live through the use state.
In said structure, it is mainly the effect that utilizes torsion spring, promote to trigger the sensor of part contact image forming device, its defect is, detects wheel and rotates counterclockwise under the reset response power of torsion spring, and two are triggered part and in succession with sensor, contact, moment separately, the time compole short, reset effect is not good, can't realize triggering the time interval that the sensor of image forming apparatus occurs.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of developer box with use condition checkout gear of more reliable performance, after having that the new reagent of this pick-up unit is box-packed and entering image forming apparatus, can realize exactly that the time delay that the image forming apparatus sensor exists detects.
For solving the problems of the technologies described above, the present invention has adopted following technical scheme: design a kind of developer box, comprise the box body with the first end wall and second end wall, the pick-up unit that described the first end wall is provided with transmission gear and coordinates with the sensor of image forming apparatus, described pick-up unit comprises the detection wheel that can be rotated to support on described the first end wall and the torsion spring that resets for detection of wheel, on described detection wheel, is provided with the toothed projections that can mesh with described transmission gear; Wherein, on described detection wheel, be provided be used to the elasticity that triggers described sensor and trigger part and for described transmission gear, forming the elastic-friction layer of frictional fit; Under original state, described toothed projections and the engagement of described transmission gear, simultaneously described elasticity triggers part and is resisted against on described sensor, and described detection wheel is in the first stationary state; In working order, described transmission gear rotates predetermined angular and described toothed projections and described transmission gear is broken away from, in the process of described detection wheel by described torsion spring driven rotary, exist described elastic-friction layer to form with described transmission gear the friction buffer stage that kinetic friction coordinates, in stage, described elasticity triggers part and described sensor keeps rubbing contact in described friction buffer.
Developer box of the present invention detects in the rotation process of wheel at it, the elastic-friction layer of taking turns by detection coordinates and produces friction buffer with transmission gear formation kinetic friction, make to detect wheel and can guarantee fully that elasticity triggers part and sensor keeps rubbing contact, thereby extended the duration of contact that elasticity triggers part and sensor, realize that the time delay that sensor exists detects, make the central processing unit of laser printer enter the counting duty, record the work course of developer box.And this structure of the detecting device is simple, low cost of manufacture.
According to developer box of the present invention, described detection wheel comprises wheel body and along the axle sleeve of the Axis Extension of described wheel body, described toothed projections is arranged on the wheel side face of described wheel body, and extends along this wheel body radial outward; Described elastic-friction layer is attached to described the wheel on side face.
In one embodiment, described elasticity triggers part and is fixed on the outer face of described wheel body, and this elasticity triggers part and has electrolysis and the arcuate friction surface for contacting with described sensor.Preferably, described elasticity triggering part is sponge member.
In another embodiment, on the outer face of described wheel body, be provided with fan-shaped boss, described elasticity triggers part and is fixed on a side of this fan-shaped boss.Preferably, it is elastic sheet material that described elasticity triggers part, is for example elastic film.
According to developer box of the present invention, described elastic-friction layer is spongy layer.
According to developer box of the present invention, described detection wheel can be rotated to support on the back shaft on described the first end wall, and described torsion spring is set in this back shaft; Force arm and root that described torsion spring comprises spiral pars intermedia and is positioned at described pars intermedia two ends; Described force arm is pressed against described detection wheel, and described root is pressed against the baffle plate that is fixed on described the first end wall.
The accompanying drawing explanation
Fig. 1 is the structural representation of the first embodiment of developer box of the present invention;
Fig. 2 is the end construction schematic diagram after developer box shown in Figure 1 is removed guard shield;
Fig. 3 is the end part exploded view of developer box shown in Figure 1;
Fig. 4 is the structure of the detecting device schematic diagram of developer box shown in Figure 1;
Fig. 5 is the torsion spring stereographic map in pick-up unit shown in Figure 4;
Fig. 6 is the detection wheel construction schematic diagram one in pick-up unit shown in Figure 2;
Fig. 7 is the detection wheel construction schematic diagram two in pick-up unit shown in Figure 2;
Fig. 8 is the detection wheel construction schematic diagram three in pick-up unit shown in Figure 2;
Fig. 9 is the original state schematic diagram of pick-up unit shown in Figure 2;
Figure 10 is the working state schematic representation of pick-up unit shown in Figure 2;
Figure 11 is the end-of-job view of pick-up unit shown in Figure 2;
Figure 12 is the end construction schematic diagram of the second embodiment of developer box of the present invention;
Figure 13 is the detection wheel construction schematic diagram one in pick-up unit shown in Figure 12;
Figure 14 is the detection wheel construction schematic diagram two in pick-up unit shown in Figure 12;
Figure 15 is the detection wheel construction schematic diagram three in pick-up unit shown in Figure 12;
Figure 16 is the original state schematic diagram of the pick-up unit in the middle of Figure 12;
Figure 17 is the working state schematic representation of the pick-up unit in the middle of Figure 12;
Figure 18 is the end-of-job view of the pick-up unit in the middle of Figure 12.
Embodiment
referring to Fig. 1 and Fig. 2, the developer box of the first embodiment of the present invention is applied in the image forming apparatus such as laser printer, it comprises by the first end wall 11, the box body 1 that the second end wall 12 and some sidewalls surround, this box body 1 internal separation becomes to store the powder-storage bin 10 of rated capacity developer and developer is adsorbed in to developer roll 2(only shows end be used to laying in certain developer and completing therein) developing chamber on surface, in powder-storage bin 10, be provided with puddle support 3, between powder-storage bin 10 and developing chamber, be provided with to the powder feeding roller 4 of developer roll 2 supply developers, developer roll 2 and powder feeding roller 4 rotatably are supported on two end walls of box body 1, developer roll 2 tops are provided with the powder outlet cutter (not shown) of regulating the developing roller surface developer layer thickness.The first end wall 11 of box body 1 is provided with gear drive 6, for the rotary torque by laser printer input pass to puddle support 3, powder feeding roller 4 and developer roll 2 so that they stir respectively, the work of powder feeding and development, puddle support 3 receives driving force by the puddle support gear 31 that is fixed on its end with gear drive 6 engagements.Gear drive 6 outsides are provided with guard shield 5, this guard shield 5 can the connected mode such as be buckled by bolt 51 or tenon and be fixed on the first end wall 11, and then gear drive 6 is enclosed in the inner chamber that is surrounded by guard shield 5 and the first end wall 11, avoid gear drive 6 to expose the impact that affects the sight and be subject to flying dust.Simultaneously, by guard shield 5, self towards the surface of the first end wall 11, with the respective gears axial end in gear drive 6, keep sliding contact state, to gear drive 6, provide axial location, and then avoid the gear in gear drive 6 come off so that cause and print obstacle etc. from the gear shaft of correspondence.
Referring to Fig. 3 and Fig. 4, between the first end wall 11 and guard shield 5, also be provided with a pick-up unit 7, for triggering the corresponding state sensor that uses of laser printer, to reach this developer box of identification, whether live through the purpose of use state.This pick-up unit 7 comprises that one detects wheel 8 and one torsion spring 9, and described detection wheel 8 rotatably wears and is supported on the back shaft 102 that is fixedly installed on the first end wall 11 by the axle sleeve 86 that arranges on self axis, and torsion spring 9 is set in this back shaft 102.Referring to Fig. 5, force arm 92 and root 93 that this torsion spring 9 comprises spiral pars intermedia 91 and is positioned at pars intermedia 91 two ends, force arm 92 is connected force arm with pars intermedia end face forms an acute angle, the outer end of force arm 92 forms a crotch section 94, and this crotch section 94 is hooked in from being subjected on the arm of force 83 that the end face 84 that detects wheel 8 close torsion springs 9 stretches out.Under installment state, torsion spring 9 is turned round contracting or is turned round and stretch, its force arm 92 be pressed against detect wheel 8 be subjected to the arm of force 83, and this crotch section 94 contacts with detecting the end face 84 of wheel near torsion spring 9, makes to detect to take turns 8 and axially compress this crotch section 94 along back shaft 102.The root 93 of torsion spring 9 is pressed against on the baffle plate 103 that is fixed in the first end wall 11, and described baffle plate 103 is furnished with four around the root portion of back shaft 102, and they extend along the radial outward of back shaft 103 respectively.Under confined state shown in Figure 2, torsion spring 9 is in to be turned round contracting or is turned round the state of stretching, and its restorable elastic force puts on and detects on wheel 8 by force arm 92.The coefficient of stiffiness of torsion spring 9 or the twisting resistance that produces are selected to less than promoting gear drive 6 and rotate required acting force.
Referring to Fig. 6 to Fig. 8, detect wheel 8 and mainly by wheel body 85 with along the axle sleeve 86 of the Axis Extension of wheel body 85, form, on the wheel side face 851 of wheel body 85, be provided with a toothed projections 81 of extending along wheel body 85 radial outward.Along the sense of rotation that detects wheel 8, on the wheel side face 851 at toothed projections 81 rears, be attached with the elastic-friction layer 87 that forms frictional fit for the transmission gear 61 with gear drive 6, this elastic-friction layer 87 can consist of spongy layer.In addition, at the outer face of wheel body 85 852(along self axially back to the end face of the first end wall 11) on the elasticity that is fixed with for trigger sensor 20 trigger part 88, this elasticity triggers part 88 and has electrolysis 881 and the arcuate friction surface 882 for contacting with sensor 20, and this elasticity triggers part 88 and can be sponge member.
See Fig. 9, under original state before developer box is packed laser printer into, the teeth groove engagement of the toothed projections 81 on detection wheel 8 and transmission gear 61, the part 88 of elasticity triggering simultaneously is resisted against on sensor 20 by electrolysis 881, and detection this moment wheel 8 is in the first stationary state.See Figure 10, after developer box is loaded into, start laser printer, the laser printer built-in system starts to detect developer box, the rotary torque that starts the developer box running this moment is passed to transmission gear 61 step by step by the transition gear in gear drive 6, drive transmission gear 61 and rotate along clockwise direction predetermined angular, by being engaged in toothed projections 81 in self teeth groove, driving and detect wheel 8 and rotate in the counterclockwise direction certain angle simultaneously, as shown by the arrows in Figure 10; When toothed projections 81 breaks away from the contact range of aforementioned teeth groove or reach, the reset response power of torsion spring 9 puts on to detect on wheel 8 by force arm 92 impels it to continue to rotate in the counterclockwise direction, in process subsequently, elastic-friction layer 87 forms kinetic friction with transmission gear 61 and coordinates, in stage, the elasticity after compression deformation triggers part 88 and keeps rubbing contact by its arcuate friction surface 882 and sensor 20 in this friction buffer.See Figure 11, after the kinetic friction contact of certain hour, elasticity triggers part 88 and separates with sensor 20, elastic-friction layer 87 also breaks away from and coordinates with transmission gear 61 simultaneously, detect under wheel 8 power of the reset response at torsion spring 9 drivings and continue to rotate rapidly in the counterclockwise direction, until the elastic force of torsion spring 9 discharges fully.
In the such rotation process that detects wheel 8, the elastic-friction layer 87 of taking turns on 8 by detection coordinates and produces friction buffer with transmission gear 61 formation kinetic friction, make to detect wheel 8 and can guarantee fully that elasticity triggers part 88 and keeps rubbing contact with sensor 20, thereby extended the duration of contact that elasticity triggers part 88 and sensor 20, realize that the time delay that sensor 20 exists detects, make the central processing unit of laser printer enter the counting duty, record the work course of developer box.And this structure of the detecting device is simple, low cost of manufacture.
Referring to Figure 12 to Figure 15, in the second embodiment of developer box of the present invention, the outer face 852 of wheel body 85 is provided with fan-shaped boss 853, on a side of this fan-shaped boss 853, is fixed with elastic sheet material 89, such as being elastic film etc.Elastic sheet material 89 triggers part as the elasticity of the sensor 20 for triggering laser printer.In addition, the structure of this embodiment and the first embodiment are basic identical.
Referring to Figure 16 to Figure 18, the principle of work of this embodiment is as follows:
See Figure 16, under the original state before developer box is packed laser printer into, the toothed projections 81 that detects on wheel 8 meshes with the teeth groove of transmission gear 61, and elastic sheet material 89 is resisted against on sensor 20 simultaneously, detects wheel 8 this moment and is in the first stationary state.See Figure 17, after developer box is loaded into, start laser printer, the laser printer built-in system starts to detect developer box, the rotary torque that starts the developer box running this moment is passed to transmission gear 61 step by step by the transition gear in gear drive 6, drive transmission gear 61 and rotate along clockwise direction predetermined angular, by being engaged in toothed projections 81 in self teeth groove, driving and detect wheel 8 and rotate in the counterclockwise direction certain angle simultaneously, as shown in arrow in Figure 17; When toothed projections 81 breaks away from the contact range of aforementioned teeth groove or reach, the reset response power of torsion spring 9 puts on to detect on wheel 8 by force arm 92 impels it to continue to rotate in the counterclockwise direction, in process subsequently, elastic-friction layer 87 forms kinetic friction with transmission gear 61 and coordinates, in stage, the elastic sheet material 89 after compression deformation keeps rubbing contact by its distortion and sensor 20 in this friction buffer.See Figure 18, after the kinetic friction contact of certain hour, elastic sheet material 89 separates with sensor 20, elastic-friction layer 87 also breaks away from and coordinates with transmission gear 61 simultaneously, detect under wheel 8 power of the reset response at torsion spring 9 drivings and continue to rotate rapidly in the counterclockwise direction, until the elastic force of torsion spring 9 discharges fully.
In the such rotation process that detects wheel 8, the elastic-friction layer 87 of taking turns on 8 by detection coordinates and produces friction buffer with transmission gear 61 formation kinetic friction, make to detect wheel 8 and can guarantee fully that elastic sheet material 89 and sensor 20 keep rubbing contact, thereby extended the duration of contact of elastic sheet material 89 and sensor 20, realize that the time delay that sensor 20 exists detects, make the central processing unit of laser printer enter the counting duty, record the work course of developer box.And this structure of the detecting device is simple, low cost of manufacture.
Claims (9)
1. developer box comprises:
Box body with the first end wall and second end wall, the pick-up unit that described the first end wall is provided with transmission gear and coordinates with the sensor of image forming apparatus, described pick-up unit comprises the detection wheel that can be rotated to support on described the first end wall and the torsion spring that resets for detection of wheel, on described detection wheel, is provided with the toothed projections that can mesh with described transmission gear;
It is characterized in that: described detection is provided with on taking turns be used to the elasticity triggering part that triggers described sensor and for the elastic-friction layer with described transmission gear formation frictional fit;
Under original state, described toothed projections and the engagement of described transmission gear, simultaneously described elasticity triggers part and is resisted against on described sensor, and described detection wheel is in the first stationary state; In working order, described transmission gear rotates predetermined angular and described toothed projections and described transmission gear is broken away from, in the process of described detection wheel by described torsion spring driven rotary, exist described elastic-friction layer to form with described transmission gear the friction buffer stage that kinetic friction coordinates, in stage, described elasticity triggers part and described sensor keeps rubbing contact in described friction buffer.
2. developer box according to claim 1 is characterized in that: described detection wheel comprises wheel body and along the axle sleeve of the Axis Extension of described wheel body, described toothed projections is arranged on the wheel side face of described wheel body, and extends along this wheel body radial outward; Described elastic-friction layer is attached to described the wheel on side face.
3. developer box according to claim 2, it is characterized in that: described elasticity triggers part and is fixed on the outer face of described wheel body, and this elasticity triggers part and has electrolysis and the arcuate friction surface for contacting with described sensor.
4. developer box according to claim 3, it is characterized in that: it is sponge member that described elasticity triggers part.
5. developer box according to claim 2, it is characterized in that: on the outer face of described wheel body, be provided with fan-shaped boss, described elasticity triggers part and is fixed on a side of this fan-shaped boss.
6. developer box according to claim 5, it is characterized in that: it is elastic sheet material that described elasticity triggers part.
7. developer box according to claim 6, it is characterized in that: described elastic sheet material is elastic film.
8. developer box according to claim 1, it is characterized in that: described elastic-friction layer is spongy layer.
9. developer box according to claim 1, it is characterized in that: described detection wheel can be rotated to support on the back shaft on described the first end wall, and described torsion spring is set in this back shaft; Force arm and root that described torsion spring comprises spiral pars intermedia and is positioned at described pars intermedia two ends; Described force arm is pressed against described detection wheel, and described root is pressed against the baffle plate that is fixed on described the first end wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310334940.XA CN103399475B (en) | 2013-08-02 | 2013-08-02 | A kind of developer box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310334940.XA CN103399475B (en) | 2013-08-02 | 2013-08-02 | A kind of developer box |
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| CN103399475A true CN103399475A (en) | 2013-11-20 |
| CN103399475B CN103399475B (en) | 2016-05-25 |
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| CN201310334940.XA Active CN103399475B (en) | 2013-08-02 | 2013-08-02 | A kind of developer box |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015014251A1 (en) * | 2013-08-02 | 2015-02-05 | 珠海天威飞马打印耗材有限公司 | Developer box |
| CN105824210A (en) * | 2014-08-22 | 2016-08-03 | 珠海艾派克科技股份有限公司 | Development box |
| CN108762026A (en) * | 2018-08-29 | 2018-11-06 | 中山市迪迈打印科技有限公司 | With the counting component and Delevoping cartridge for moving back and forth counting part |
| CN110488582A (en) * | 2017-10-11 | 2019-11-22 | 中山诚威科技有限公司 | Counting mechanism and Delevoping cartridge |
| WO2020015000A1 (en) * | 2018-07-18 | 2020-01-23 | 珠海精专科技有限公司 | Toner cartridge capable of automatically resetting |
| WO2021078106A1 (en) * | 2019-10-24 | 2021-04-29 | 珠海天威飞马打印耗材有限公司 | Developing cartridge and imaging device |
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| EP1696284A2 (en) * | 2005-02-28 | 2006-08-30 | Brother Kogyo Kabushiki Kaisha | Image-forming device and developing cartridge comprising information member for initial developer amount |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015014251A1 (en) * | 2013-08-02 | 2015-02-05 | 珠海天威飞马打印耗材有限公司 | Developer box |
| CN105824210A (en) * | 2014-08-22 | 2016-08-03 | 珠海艾派克科技股份有限公司 | Development box |
| CN110488582A (en) * | 2017-10-11 | 2019-11-22 | 中山诚威科技有限公司 | Counting mechanism and Delevoping cartridge |
| CN110488582B (en) * | 2017-10-11 | 2022-03-08 | 中山诚威科技有限公司 | Counting mechanism and developing box |
| WO2020015000A1 (en) * | 2018-07-18 | 2020-01-23 | 珠海精专科技有限公司 | Toner cartridge capable of automatically resetting |
| CN108762026A (en) * | 2018-08-29 | 2018-11-06 | 中山市迪迈打印科技有限公司 | With the counting component and Delevoping cartridge for moving back and forth counting part |
| WO2021078106A1 (en) * | 2019-10-24 | 2021-04-29 | 珠海天威飞马打印耗材有限公司 | Developing cartridge and imaging device |
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| CN103399475B (en) | 2016-05-25 |
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