CN1330293A - Image forming device and driving transmission device thereof - Google Patents
Image forming device and driving transmission device thereof Download PDFInfo
- Publication number
- CN1330293A CN1330293A CN 01121920 CN01121920A CN1330293A CN 1330293 A CN1330293 A CN 1330293A CN 01121920 CN01121920 CN 01121920 CN 01121920 A CN01121920 A CN 01121920A CN 1330293 A CN1330293 A CN 1330293A
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- mentioned
- clutch shaft
- clutch
- image processing
- processing system
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- Electrophotography Configuration And Component (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Gear Transmission (AREA)
Abstract
The present invention relates to an image forming device and driving transmission device thereof. The clutch shaft 32 on which the clutch 40 is mounted has one end supported via a bearing 35 by the side plate (the frame member) 30 and via a bearing 36 by a bracket 38 separate from the side plate and the other end rotatably supported via a bearing 42 by the cover member 44. The bracket 38 is secured to the side plate 30 with a mounting screw 53 screwed to a tapped hole 30c. The bracket having a tapped center shaft 47 rotatably supports a first transmission gear 48 at the upstream side in mesh with a clutch gear 41. This facilitates the exchange of a clutch without inclining the clutch shaft even when removing the cover member.
Description
The present invention relates to duplicating machine, printer, facsimile unit or their compounding machine etc. with the image processing system of image recording on recording mediums such as paper, card, projection film, and in this image processing system, use the clutch shaft that clutch coupling is housed the revolution of motor to be delivered to the drive transmission device of solid of revolution such as paper feed roller or registration roller.
In the past, usually in image processing system, for example shown in Figure 8, the paper that is provided with a pair of registration roller etc. transports roller 1, do not have illustrated side plate to support the two ends that this a pair of paper transports the revolving shaft 2 of one of roller 1 by bearing 3 and 4 usefulness respectively, the clutch coupling 5 of electromagnetic clutch etc. is housed from the front end of the outstanding revolving shaft 2 of side plate.On clutch coupling 5, be provided with for example clutch gear 6, by being located at the transmitting gear 7 and transmit the revolution that gear 8 transmits motor 9 of upstream side with the 2nd of the 1st transmission gear 7 engagements with the 1st of these clutch gear 6 engagements.Like this,, control the revolution that a pair of paper transports roller 1, stop to transport paper or transport paper more for the moment by connecting cut-off clutch 5.
But, in this image processing system, owing on a pair of paper transports the revolving shaft 2 of one of roller 1, clutch coupling 5 is housed, can only transmit revolution or cut off and transmit revolution to this revolving shaft 2, can not or cut off to some solid of revolution transmission revolutions to some solid of revolution transmission revolutions.In addition, because clutch coupling 5 is housed on revolving shaft 2, the shortcoming that exists easily assembling paper not to transport roller.
Therefore, in image processing system in the past, for example shown in Figure 9, gear set 10 is set, be used for transporting roller 1A and second pair of revolution that paper transports roller 1B transmission motor 9 to first pair of paper, be provided with clutch gear 6 in this gear set 10, an end that is provided with the clutch shaft 11 of clutch coupling 5 is bearing on the side plate 13 by bearing 12, and the other end is bearing on the cover 15 by bearing 14.Cover 15 usefulness for example two mounting screws 16 are installed on the side plate 13.
Like this,, can simultaneously revolution be passed to that first pair of paper transports roller 1A and second pair of paper transports roller 1B, perhaps cut off above-mentioned rotating transmission by connecting cut-off clutch 5.
In addition, for example shown in Figure 10, roll shaft 19 is housed in paper supply assembly 18 with freely rotating, be provided with liner platform 21 with paper feed roller 20 subtends on this roll shaft 19, be provided with the portion 23 of ending of being hung of shaft coupling 22 at roll shaft 19 1 ends.The extension shotpin 24 of shaft coupling 22 hang to be ended portion 23 and is cooperated with above-mentioned, and the extension shotpin 24 of this shaft coupling 22 is located at an end of clutch shaft 11.
One end of clutch shaft 11 is bearing on the side plate 13 by bearing 12, and the other end is bearing on the cover 15 by bearing 14, and clutch coupling 5 is installed on axle.Cover 15 usefulness for example two mounting screws 16 are installed on the side plate 13.
Like this, make that by shaft coupling 22 roll shaft 19 and clutch shaft 11 are to take off, can make 18 loading and unloading of paper supply assembly freely.
In the drive transmission device of this image processing system, clutch coupling 5 can break down sometimes.The sort of occasion, the maintenance personal unloads mounting screw 16, gets except that cover 15, pull down bearing 14 after, take out clutch couplinges 5 from clutch shaft 11, place under repair or be replaced with new product.
But if get except that cover 15, for example shown in Figure 11, clutch shaft 11 represents that from dot-and-dash line state tilts to solid line and represents state, and it is pretty troublesome to change clutch coupling.
The present invention puts forward in view of the existing problem of above-mentioned prior art, the 1st problem of the present invention is, at one end being located at the frame parts other ends such as side plate is bearing in the image processing system of loading and unloading cover freely, even take off cover, clutch shaft can not tilt yet, and is easy to change clutch coupling.
The 2nd problem of the present invention is that in such image processing system, clutch shaft cogs and upstream side the 1st transmits gearing mesh, and the axle base precision between the central shaft of raising clutch shaft and upstream side the 1st transmission gear can correctly be transmitted revolution.
The 3rd problem of the present invention is that in such image processing system, the 1st transmits gear and upstream side the 2nd transmission gearing mesh, improves the 1st and transmits the central shaft of gear and the axle base precision that upstream side the 2nd transmits between the central gear axis, can correctly transmit revolution.
The 4th problem of the present invention is, in above-mentioned image processing system, with the part universalization, reduces number of spare parts.
The 5th problem of the present invention is that in such image processing system, moving axially of regulation clutch shaft prevents that bearing from leaving frame parts, avoids assembly defect, makes that simultaneously the support unit assembling is simple.
The 6th problem of the present invention is, in above-mentioned image processing system, when getting except that cover, makes clutch shaft can not tilt, easier replacing clutch coupling.
The 7th problem of the present invention is, in above-mentioned image processing system, is easy to the assembly that loads and unloads revolving shaft or comprise revolving shaft.
In order to realize above-mentioned the 1st problem, in claim 1, the present invention proposes a kind of image processing system, on clutch shaft, be provided with clutch coupling, be used for revolution is passed to this clutch shaft, or cut off above-mentioned revolution transmission, this clutch shaft one end supports with frame parts, the other end makes the clutch shaft revolution freely respectively with loading and unloading cover supporting freely; It is characterized in that above-mentioned clutch shaft one end also supports with another support unit except with the above-mentioned frame parts supporting.
In order to realize above-mentioned the 2nd problem, the invention that claim 2 relates to is in the image processing system of claim 1 record, with above-mentioned support unit support with freely rotating with above-mentioned clutch shaft on the 1st transmission gear of upstream side of gearing mesh.
In order to realize above-mentioned the 3rd problem, the invention that claim 3 relates to is in the image processing system of claim 2 record, pair locatees with the above-mentioned the 1st the 2nd transmission gear that transmits the upstream side of gearing mesh with above-mentioned support unit.
In order to realize above-mentioned the 4th problem, the invention that claim 4 relates to is that said frame parts and support unit support above-mentioned clutch shaft by shared bearing in any described image processing system of claim 1-3.
In order to realize above-mentioned the 5th problem, the invention that claim 5 relates to is in the image processing system of claim 4 record, being installed in packing ring and the above-mentioned bearing clamping said frame parts on the above-mentioned clutch shaft, and the moving axially of the above-mentioned clutch shaft of regulation.
In order to realize above-mentioned the 6th problem, the invention that claim 6 relates to is in any described image processing system of claim 1-5, and the above-mentioned support unit of warpage forms subtend portion, supports above-mentioned clutch shaft one end with the above-mentioned subtend both sides of portion.
In order to realize above-mentioned the 7th problem, the invention that claim 7 relates to is in any described image processing system of claim 1-6, makes above-mentioned revolving shaft take off freely by shaft coupling and above-mentioned clutch shaft system.
In order to realize above-mentioned the 1st problem, in claim 8, the present invention proposes a kind of drive transmission device of image processing system, on clutch shaft, be provided with clutch coupling, be used for revolution is passed to this clutch shaft, or cut off above-mentioned revolution transmission, this clutch shaft one end supports with frame parts, the other end makes the clutch shaft revolution freely respectively with loading and unloading cover supporting freely; It is characterized in that above-mentioned clutch shaft one end also supports with another support unit except with the above-mentioned frame parts supporting.
The following describes effect of the present invention.
According to the image processing system of claim 1 of the present invention, because clutch shaft one end is except with the frame parts supporting, also with another support unit supporting, so, also can prevent the clutch shaft inclination when taking off cover, be easy to change clutch coupling.
Image processing system according to claim 2 of the present invention, since with above-mentioned support unit support with freely rotating with above-mentioned clutch shaft on gearing mesh upstream side the 1st the transmission gear, so, improve the 1st axle base precision of transmitting between central gear axis and the clutch shaft, can correctly transmit revolution.
Image processing system according to claim 3 of the present invention, because transmit the 2nd transmission gear of the upstream side of gearing mesh locatees with above-mentioned support unit pair and the above-mentioned the 1st, so, improved the 1st and transmitted the axle base precision that central gear axis and the 2nd transmits central gear axis, can correctly transmit revolution.
According to the image processing system of claim 4 of the present invention, because said frame parts and support unit support above-mentioned clutch shaft by shared bearing, so the bearing universalization can reduce number of spare parts.
Frame parts by bearing supporting clutch shaft after, when being installed to support unit and cover on the frame parts, hide because of above-mentioned support unit and cover sometimes, do not notice that bearing comes off from frame parts, assembly defect takes place, and assembles pretty troublesome.Image processing system according to claim 5 of the present invention, because to be installed in packing ring and the above-mentioned bearing clamping said frame parts on the above-mentioned clutch shaft, moving axially of the above-mentioned clutch shaft of regulation, so, can prevent that bearing from coming off from frame parts, avoid taking place assembly defect, and the support unit assembling is simple.
According to the image processing system of claim 6 of the present invention, because the above-mentioned support unit of warpage forms subtend portion, support above-mentioned clutch shaft one end with the above-mentioned subtend both sides of portion, so, can prevent further that clutch shaft from tilting easier replacing clutch coupling.
According to the image processing system of claim 7 of the present invention,, therefore, be easy to the assembly that loads and unloads revolving shaft or comprise revolving shaft owing to make above-mentioned revolving shaft take off freely by shaft coupling and above-mentioned clutch shaft system.
Drive transmission device according to the image processing system of claim 8 of the present invention, the same with the invention of record in the claim 1, because above-mentioned clutch shaft one end is except supporting with above-mentioned frame parts, also with another support unit supporting, so, can prevent also when taking off cover that clutch shaft from tilting, and is easy to change clutch coupling.
Brief Description Of Drawings is as follows:
Fig. 1 is the exploded perspective view of the drive transmission device of the image processing system that the present invention relates to;
Fig. 2 is its assembled state key diagram;
Fig. 3 is the assembled state key diagram of its modified example;
Fig. 4 is the bearing oblique view that uses among the above-mentioned figure;
Fig. 5 is the packing ring oblique view;
Fig. 6 is another routine exploded perspective view of drive transmission device of the image processing system that the present invention relates to;
Fig. 7 is its assembled state key diagram;
Fig. 8 is the explanation oblique view of drive transmission device in the image processing system in the past;
Fig. 9 is the explanation oblique view of another example of drive transmission device in the image processing system in the past;
Figure 10 is the explanation oblique view of the another example of drive transmission device in the image processing system in the past;
Figure 11 is the key diagram that in the past had problems in the image processing system.
With reference to the accompanying drawings, describe the embodiment of the invention in detail.
Fig. 1 is the exploded perspective view of the drive transmission device of the image processing system that the present invention relates to, and Fig. 2 is its assembled state key diagram.
Clutch shaft 32 connects the extension shotpin 33 that is used to constitute shaft coupling by above-mentioned dead eye 30a at clutch shaft 32 1 ends, near an end place packing ring 34 is being installed.Form side grain 32a at clutch shaft 32 other ends.And clutch shaft 32 holds 35 by dead eye 30a rear through shaft.The bearing 35 that connects clutch shaft 32 embeds dead eye 30a, joins with packing ring 34.
Clutch shaft 32 connects bearing 36 again, among the bearing 36 dead eye 38a of embedding as the support 38 of support unit, positions with packing ring 37.Connect clutch couplinges 40 such as electromagnetic clutch again, cooperate, with packing ring 39 anti-avulsions with side grain 32a.Clutch coupling 40 is provided with clutch gear 41, passes to clutch shaft 32 by connecting the revolution that disconnects this clutch gear 41, or cuts off above-mentioned revolution transmission.
The clutch shaft 32 last bearings 42 that connect are with packing ring 43 anti-avulsions.Among the dead eye 44a of bearing 42 insert cover parts 44.In the present embodiment, cover 44 is screwed into a pair of mounting screw 45 among the screw 30b and is installed on the side plate 30.
Central authorities at support 38 have axis hole 38b.In addition, clip this axis hole 38b, also have screw reach through hole 38c.And the front end formation at this support 38 is that radius centered is the circular hole 38d of R with axis hole 38b.
The base portion of central shaft 47 is pressed among the axis hole 38b of support 38 the upright central shaft 47 of establishing.The 1st transmission gear 48 of the upstream side that meshes with clutch gear 41 is installed at the front end of central shaft 47.Like this, make the 1st transmission gear 48 be bearing in freely rotating on the support 38.
Clamping does not have illustrated distance piece between side plate 30 and the support 38, and mounting screw 53 passes screw reach through hole 38c and is screwed into screw 30c, and support 38 is installed on the side plate 30.Certainly, also can not press from both sides distance piece, with side plate 30 or support 38 warpages, form step, use-case such as above-mentioned same method are installed in support 38 on the side plate 30.
In illustrated example, because at the axle base that determines clutch shafts 32 and central shaft 47 as the support 38 of support unit, and make the 2nd to transmit gear 52 and correctly locate by the circular hole 38d of support 38 being inserted central shaft 49, determine the axle base of central shaft 47 and 49, so, improve axle base precision from rotating gear set 55 to clutch shaft 32 that transmit, can correctly transmit revolution.Behind central shaft 49 location, suitable fixed frame 50.
Like this, with side plate 30 and as support 38 supporting of another parts, the other end is supporting respectively with freely rotating with loading and unloading cover 44 supportings freely at clutch shaft 32 1 ends.
There is not illustrated motor revolution by transmission, make the 2nd to transmit gear 52 revolutions, transmit gear 48 by the 1st again revolution is delivered to clutch gear 41, when connecting clutch coupling 40, this revolution is delivered to clutch shaft 32, by constituting the extension shotpin 33 of shaft coupling, make the paper feed roller (solid of revolution) of paper supply assembly turn round again.In this image processing system, the paper supply assembly is made as loading and unloading freely, comprises that the revolving shaft of the roll shaft etc. of this paper feed roller is to take off freely (diagram is omitted) by shaft coupling and clutch shaft 32.
During clutch coupling 40 faults, unload lower gasket 43 and mounting screw 45, shown in solid line among Fig. 2, get except that cover 44, unload lower bearing 42 after, take off packing ring 39, take off clutch coupling 40 from clutch shaft 32, to its place under repair, or be replaced by new clutch coupling.
Even when getting except that cover 44, because clutch shaft 32 1 end bearings are on side plate 30 and support 38, clutch shaft 32 can not resemble run-off the straight the conventional art, is easy to change clutch coupling 40.
In example illustrated in figures 1 and 2, bearing 35 is provided as different parts respectively with 36, but also can make integral bearing 70 as shown in Figure 3, to reduce number of spare parts.Bearing 70 shown in Figure 3 is made of truncate 71, flange part 72 and cylindrical portion 73 as shown in Figure 4.
As shown in Figure 3, embed for truncate 71 in the corresponding truncate shape dead eye 74 of side plate 30.About the thickness b thick 0.5mm of this thickness a of truncate 71 than side plate 30.Cylindrical portion 73 embeds in the round bearing hole 75 of support 38.Side plate 30 and support 38 clamped flanges portions 72.
In example shown in Figure 3, packing ring 34 be made into than truncate 71 big, and, packing ring 34 and flange part 72 clamping side plates 30.Like this, when clutch shaft 32 inserts in the dead eye 74 of side plates 30 when packing ring 34,37 is housed in bearing 70 both sides, can stop clutch shaft 32 to move vertically, after this, when mounting bracket and cover 44, bearing 70 can not come off from dead eye 74, can avoid assembly defect, is easy to mounting bracket 38 and cover 44.
As shown in Figure 5, if on packing ring 34,37, be provided with resin system handle portion 76, then be easy to loading and unloading.Be marked with prosign with Fig. 1 counterpart among Fig. 3, repeat specification is omitted.
Fig. 6 is another routine exploded perspective view of drive transmission device of the image processing system that the present invention relates to, and Fig. 7 is its assembled state key diagram.
In the present embodiment, form side grain 32b, simultaneously, carry out regulation in the centre with packing ring 34 bearing 35 is installed, form side grain 32a equally, clutch coupling 40 is installed there, with packing ring 39 anti-avulsions at clutch shaft 32 other ends at clutch shaft 32 1 ends.
Equally, connect bearing 42 usefulness packing rings 43 anti-avulsions.Bearing 42 is entrenched among the dead eye 44a of cover 44.With two mounting screws 45 cover 44 is installed on the side plate 30.
In another dead eye 60b, embed another bearing 62.And, after passing the 1st gear 63, the clutch shaft 32 of perforation bearing 35 runs through another bearing 62 again, packing ring 64 is installed on clutch shaft 32 then, prevent above-mentioned element falling.At this moment, the center pit 63a of the 1st gear 63 cooperates with the side grain 32b of clutch shaft 32, the 1st gear 63 and the revolution of clutch shaft 32 one between two bearings 35,62.
Be provided with axle 65 between the 60A of subtend portion, 60B, the 2nd gear 66 is being supported with freely rotating on this axle 65, the 2nd gear 66 and 63 engagements of the 1st gear.
And, by spring (not diagram) support 60 is paid elastic energy, give with support 60 be center revolution habit along the direction of arrow in the figure with clutch shaft 32, the upright block (not diagram) of establishing on the side plate 30, above-mentioned support 60 joins with block and stops to turn round.
Like this, during along arrow A direction installation paper supply assembly, with the paper supply gear 68 and 66 crimping of the 2nd gear of paper feed roller 67 coaxial settings, opposing revolution habit makes support 60 revolutions some, owing to turn round habit, said gear 66 and 68 can positive engagement.
Transmit motor (not diagram) revolution by gear set (not diagram), make clutch gear 41 turn round, when connecting clutch coupling 40, this revolution is delivered to clutch shaft 32, engagement by the 1st gear 63 and the 2nd gear 66, pass to paper supply gear 68, make roll shaft (revolving shaft) 69, send the recording medium in the paper supply assembly with paper feed roller 67 revolutions.
During clutch coupling 40 faults, unload mounting screw 45 and packing ring 43, shown in solid line among Fig. 7, get except that cover 44, take off bearing 42 after, unload lower gasket 39, take out clutch couplinges 40 from clutch shaft 32, place under repair or be replaced by new product.
Get when removing cover 44, with the 60A of subtend portion, 60B supporting clutch shaft 32 1 ends of side plate 30 and support 60, simultaneously, support 60 joins with side plate 30, therefore, can prevent further that clutch shaft 32 from tilting resembling in the past, is easy to change clutch coupling 40.
Certainly, the present invention is not limited to the foregoing description, can do all changes in the technology of the present invention thought range, and they all belong to protection scope of the present invention.
Claims (8)
1. an image processing system is provided with clutch coupling on clutch shaft, is used for revolution is passed to this clutch shaft, or cut off above-mentioned revolution transmission, this clutch shaft one end supports with frame parts, and the other end makes the clutch shaft revolution freely respectively with loading and unloading cover supporting freely; It is characterized in that above-mentioned clutch shaft one end also supports with another support unit except with the above-mentioned frame parts supporting.
2. according to the image processing system described in the claim 1, it is characterized in that, with above-mentioned support unit support with freely rotating with above-mentioned clutch shaft on gearing mesh upstream side the 1st transmit gear.
3. according to the image processing system described in the claim 2, it is characterized in that, transmit with above-mentioned support unit pair and the above-mentioned the 1st gearing mesh upstream side the 2nd transmit the gear location.
4. according to any described image processing system among the claim 1-3, it is characterized in that said frame parts and support unit support above-mentioned clutch shaft by shared bearing.
5. according to the image processing system described in the claim 4, it is characterized in that, being installed in packing ring and the above-mentioned bearing clamping said frame parts on the above-mentioned clutch shaft, the moving axially of the above-mentioned clutch shaft of regulation.
6. according to any described image processing system among the claim 1-5, it is characterized in that the above-mentioned support unit of warpage forms subtend portion, supports above-mentioned clutch shaft one end with the above-mentioned subtend both sides of portion.
7. according to any described image processing system among the claim 1-6, it is characterized in that, make above-mentioned revolving shaft take off freely by shaft coupling and above-mentioned clutch shaft system.
8. the drive transmission device of an image processing system, on clutch shaft, be provided with clutch coupling, be used for revolution is passed to this clutch shaft, or cut off above-mentioned revolution transmission, this clutch shaft one end supports with frame parts, the other end makes the clutch shaft revolution freely respectively with loading and unloading cover supporting freely; It is characterized in that above-mentioned clutch shaft one end also supports with another support unit except with the above-mentioned frame parts supporting.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP190241/2000 | 2000-06-23 | ||
| JP2000190241 | 2000-06-23 | ||
| JP2001070048A JP2002080141A (en) | 2000-06-23 | 2001-03-13 | Image forming device and its drive transmitting unit |
| JP070048/2001 | 2001-03-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1330293A true CN1330293A (en) | 2002-01-09 |
| CN1169029C CN1169029C (en) | 2004-09-29 |
Family
ID=26594603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011219203A Expired - Fee Related CN1169029C (en) | 2000-06-23 | 2001-06-21 | Image forming device and driving transmission device thereof |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2002080141A (en) |
| CN (1) | CN1169029C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100514202C (en) * | 2005-04-06 | 2009-07-15 | 三星电子株式会社 | Rotary force controlling apparatus and image forming apparatus including the same |
| CN110612484A (en) * | 2017-04-28 | 2019-12-24 | 兄弟工业株式会社 | Developing box |
| CN112065880A (en) * | 2019-06-10 | 2020-12-11 | 京瓷办公信息系统株式会社 | Driving force transmission device and image forming apparatus |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4504712B2 (en) * | 2004-03-17 | 2010-07-14 | 株式会社リコー | DRIVE DEVICE, CONVEYING DEVICE, AND IMAGE FORMING DEVICE |
| JP5862205B2 (en) * | 2011-10-31 | 2016-02-16 | 株式会社リコー | Paper feeding mechanism and image forming apparatus |
-
2001
- 2001-03-13 JP JP2001070048A patent/JP2002080141A/en active Pending
- 2001-06-21 CN CNB011219203A patent/CN1169029C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100514202C (en) * | 2005-04-06 | 2009-07-15 | 三星电子株式会社 | Rotary force controlling apparatus and image forming apparatus including the same |
| CN110612484A (en) * | 2017-04-28 | 2019-12-24 | 兄弟工业株式会社 | Developing box |
| CN110612484B (en) * | 2017-04-28 | 2021-09-21 | 兄弟工业株式会社 | Developing box |
| US11126109B2 (en) | 2017-04-28 | 2021-09-21 | Brother Kogyo Kabushiki Kaisha | Developing cartridge including coupling and clutch for allowing rotation of coupling in first direction and stopping rotation of coupling in second direction |
| US11740569B2 (en) | 2017-04-28 | 2023-08-29 | Brother Kogyo Kabushiki Kaisha | Developing cartridge including coupling and clutch for allowing rotation of coupling in first direction and stopping rotation of coupling in second direction |
| CN112065880A (en) * | 2019-06-10 | 2020-12-11 | 京瓷办公信息系统株式会社 | Driving force transmission device and image forming apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1169029C (en) | 2004-09-29 |
| JP2002080141A (en) | 2002-03-19 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20040929 Termination date: 20190621 |