CN200999159Y - Torsion limiting device and combing wheel and mechanism using the same - Google Patents
Torsion limiting device and combing wheel and mechanism using the same Download PDFInfo
- Publication number
- CN200999159Y CN200999159Y CNU2007200662657U CN200720066265U CN200999159Y CN 200999159 Y CN200999159 Y CN 200999159Y CN U2007200662657 U CNU2007200662657 U CN U2007200662657U CN 200720066265 U CN200720066265 U CN 200720066265U CN 200999159 Y CN200999159 Y CN 200999159Y
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- China
- Prior art keywords
- axis body
- paper
- comber
- distributing mechanism
- torsion
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Abstract
A twisting force limiter, comprising an axle, a twisting force limiting member and two friction wheels; the axle is made up of the middle part and two ends which are positioned at both sides of the middle part. The twisting force limiting member covers the middle part of the axle and contacts the axle so as to restrict the twisting force to the axle. Two friction wheels are respectively fixed to both sides of the axle.
Description
Technical field
The utility model relates to a kind of torque force limiting device and uses its comber and paper distributing mechanism, being used for for example is the automatic paper feeder of image processor of scanner or chopping machine, relates in particular to a kind of miniaturization and the torque force limiting device of being convenient to keep in repair and uses its comber and paper distributing mechanism.
Background technology
Fig. 1 is the scheme drawing of first kind of traditional paper distributing mechanism of expression.As shown in Figure 1, this paper distributing mechanism comprises paper-feeding roller 101, friction pad 102 and spring 103.Paper S is between paper-feeding roller 101 and friction pad 102.Spring 103 is pressed to paper-feeding roller 101 with friction pad 102.With this, when plurality of sheets of paper was opened the path 10 4 that enters paper-feeding roller 101 and friction pad 102, friction pad 102 can stop the paper S that is in contact with it, and reaches the effect of separation.Yet this kind paper distributing mechanism is when presenting last paper, and paper and friction pad 102 fraction times are long, cause the wearing and tearing of paper or friction pad easily.
Fig. 2 is the scheme drawing of second kind of traditional paper distributing mechanism of expression.As shown in Figure 2, this paper distributing mechanism comprises paper-feeding roller 201, comber 202, spring 203 and torque force limiting device 204.Torque force limiting device 204 is fixed on the axle 205, and is installed in the comber 202, applies the effect that torsion reaches aforementioned separation with this.In this paper distributing mechanism, this comber 202 is because need hold torque force limiting device 204, so its volume can't dwindle.In addition, the dismounting of torque force limiting device 204 is comparatively complicated, and therefore, user or maintainer be comparatively inconvenience when changeing comber 202.
Fig. 3 is the scheme drawing of the third traditional comber group of expression.As shown in Figure 3, this comber group comprises comber frame 301, torque force limiting device 302 and comber 303.Comber frame 301 is fixed on the axle 304 and is connected to torque force limiting device 302.Torque force limiting device 302 is connected to comber 303, applies the effect that torsion reaches aforementioned separation with this.Yet user or maintainer be comparatively inconvenience when changeing comber 303, and the width of this comber group can't effectively be lowered, thereby can't be miniaturized.
The utility model content
Therefore, a purpose of the present utility model provides a kind of miniaturization and the torque force limiting device of being convenient to keep in repair and uses its comber and paper distributing mechanism.
For achieving the above object, the utility model provides a kind of torque force limiting device.Torque force limiting device comprises axis body, torsion limiting member and two friction wheels.Axis body has the stage casing and is positioned at the two ends of both sides, stage casing.The torsion limiting member coats the stage casing of axis body, and contacts to apply restriction torsion to axis body with axis body.Two friction wheels are individually fixed in the two ends of axis body.
The utility model also provides a kind of comber, and it comprises sleeve, axis body, torsion limiting member and two friction wheels.Axis body has the stage casing and is positioned at the two ends of both sides, stage casing.The torsion limiting member coats the stage casing of axis body and is placed in the sleeve, and contacts to apply restriction torsion to axis body with axis body.Two friction wheels are individually fixed in the two ends of axis body, and the external diameter of friction wheel is greater than the external diameter of sleeve.
The utility model also provides a kind of paper distributing mechanism, and it comprises paper-feeding roller and comber.Comber comprises sleeve, axis body, torsion limiting member and two friction wheels.Axis body has the stage casing and is positioned at the two ends of both sides, stage casing.The torsion limiting member coats the stage casing of axis body and is placed in the sleeve, and contacts to apply restriction torsion to axis body with axis body.Two friction wheels are individually fixed in the two ends of axis body, and the external diameter of friction wheel is greater than the external diameter of sleeve, and friction wheel contacts with paper-feeding roller.
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent, hereinafter provide embodiment preferably especially, and in conjunction with the accompanying drawings, be described in detail as follows.
Description of drawings
Fig. 1 is the scheme drawing of first kind of traditional paper distributing mechanism of expression.
Fig. 2 is the scheme drawing of second kind of traditional paper distributing mechanism of expression.
Fig. 3 is the scheme drawing of the third traditional comber group of expression.
Fig. 4 is the three-dimensional exploded view of expression according to the paper distributing mechanism of the utility model first embodiment.
Fig. 5 is the lateral plan of expression according to the paper distributing mechanism of the utility model first embodiment.
Fig. 6 is the three-dimensional combination figure of expression according to the paper distributing mechanism of the utility model first embodiment.
Fig. 7 is the scheme drawing of an example of expression axis body of the present utility model.
Fig. 8 is the scheme drawing of another example of expression axis body of the present utility model.
Fig. 9 is the lateral plan of expression according to the paper distributing mechanism of the utility model second embodiment.
Figure 10 is the lateral plan of expression according to the paper distributing mechanism of the utility model the 3rd embodiment.
Figure 11 is the lateral plan of expression according to the paper distributing mechanism of the utility model the 4th embodiment.
The specific embodiment
Fig. 4 to 6 is respectively three-dimensional exploded view, lateral plan and the three-dimensional combination figure of expression according to the paper distributing mechanism of the utility model first embodiment.As shown in Figs. 4-6, the paper distributing mechanism of present embodiment is combined on the main body 3, and comprises paper-feeding roller 2 and comber 1.Comber 1 comprises sleeve 10, axis body 20, torsion limiting member 30 and two friction wheels 40.
Paper-feeding roller 2 is rotated by drive power source, and then applies external force to two friction wheel 40 and axis body 20, and desire rotates two friction wheels 40 and axis body 20, and pressure makes described comber pressurize to described paper-feeding roller.
In this example, can utilize the deadweight of comber 1 that comber 1 is pressed on the paper-feeding roller 2.Perhaps, this paper distributing mechanism can also comprise compression spring 50, the housing of its contact comber 1 and paper distributing mechanism, in order to impose aforementioned pressure so that comber 1 to paper-feeding roller 2 pressurizations.
Except above-mentioned pressuring method, can also use the 60 pairs of arms 12 of torsion spring that are connected to hollow circuit cylinder 14 and housing to apply that torsion applies aforementioned pressure so that comber 1 to paper-feeding roller 2 pressurizations.Perhaps, arm 12 itself is exactly elastic body or comprises elastic component, as long as so just utilize the elasticity of arm 12 and the deadweight of comber 1 to apply aforementioned pressure so that the friction wheel 40 of comber 1 pressurizes to paper-feeding roller 2.
In paper distributing mechanism of the present utility model, because the external diameter of friction wheel 40 be big than the external diameter of sleeve 10, sleeve 10 can't contact paper-feeding roller 2, has only friction wheel 40 to contact paper-feeding roller 2.Therefore, only there is the friction wheel 40 can wearing and tearing and need be replaced, do not need complicated step, only need friction wheel 40 unloaded from the two ends of axis body 20 and new friction wheel 40 loaded onto and get final product and change friction wheel 40.Using under the situation of O type ring as friction wheel, more do not need to use any dismantling devices, only need utilize the elasticity of O type ring it can be unloaded.In addition, because torsion limiting member 30 directly entangles axis body 20, therefore the external diameter of whole comber can be reduced effectively.
Illustrate below with reference to Fig. 5 how paper distributing mechanism of the present utility model reaches the effect of separation.Paper-feeding roller 2 is rotated with friction wheel 40 rotations that drive comber 1, supposes that two pieces of paper are opened S1 and S2 enters between comber 1 and the paper-feeding roller 2 simultaneously.At this moment, paper-feeding roller 2 contacts with paper S1, and friction wheel 40 contacts with paper S2.Paper-feeding roller 2 utilizes the lasting paper S1 that drives of the friction force between paper-feeding roller 2 and the paper S1 to advance.Can or can not rotate as for friction wheel 40, depend on that paper S1 drives the size of the power of friction wheel 40 by paper S2.Torsion limiting member 30 is designed to overcome paper S1 especially and is driven the power of friction wheel 40 by paper S2, but can't overcome the power that paper-feeding roller 2 drives friction wheel 40.Therefore, paper S2 fixed by friction wheel 40 or even by stored energy mechanism design (for example elasticity of friction wheel 40 itself) paper S2 is back driven by friction wheel 40, cause between paper S1 and the S2 and produce slide relative, avoid paper S2 to enter in the paper-feeding channel, reach the effect of separation.
Fig. 9 is the lateral plan of expression according to the paper distributing mechanism of the utility model second embodiment.As shown in Figure 9, the comber 1 of present embodiment also comprises paper stopping component 13, it can be the retaining paper washer, and have the first end 13A and a second opposed end 13B, the first end 13A is fixed on the outside face 10A that is parallel to axis body 20 of sleeve 10, the second end 13B is then unfixing, but extends towards the direction of paper-feeding roller 2, and can contact or not contact with paper-feeding roller 2.The main effect of paper stopping component is earlier some paper S to be kept off before separation, to increase the usefulness of paper distributing mechanism.That is to say that paper stopping component is used to stop that at least one paper S enters between comber 1 and the paper-feeding roller 2.
Figure 10 is the lateral plan of expression according to the paper distributing mechanism of the utility model the 3rd embodiment.As shown in figure 10, the comber 1 of present embodiment also comprises paper stopping component 13 ', and it has first end, 13 ' A and second opposed end 13 ' B, and first end, 13 ' A is fixed on the buttocks 12, and second end, 13 ' B is then unfixing.Paper stopping component is used for stopping that at least one paper S enters between comber 1 and the paper-feeding roller 2 when multi-paper feed is arranged.
Figure 11 is the lateral plan of expression according to the paper distributing mechanism of the utility model the 4th embodiment.As shown in figure 11, the comber 1 of present embodiment also comprises paper stopping component 13 ', and it has first end, 13 ' A and second opposed end 13 ' B, and first end, 13 ' A is fixed on the main body 3, and second end, 13 ' B is then unfixing.Second end, 13 ' B extends towards the direction of paper-feeding roller 2, and can contact or not contact with paper-feeding roller 2.Similarly, paper stopping component 13 is used for stopping that at least one paper S enters between comber 1 and the paper-feeding roller 2 when multi-paper feed is arranged.
The specific embodiment that is proposed in the detailed description of embodiment preferably is only in order to convenient explanation technology contents of the present utility model, but not with the utility model narrow sense be limited to the foregoing description, in the situation that does not exceed spirit of the present utility model and above claim, the many variations example of being done all belongs to scope of the present utility model.
The main member symbol description
S, S1, S2: paper 1: comber
2: paper-feeding roller 3: main body
10: sleeve 10A: outer surface
11: inner surface 12: arm
13: paper stopping component 14: hollow circuit cylinder
20: axis body 22: stage casing
24: two ends 26: annular recess
28: adapter 30: the torsion limiting member
40: friction pulley 40 ': auxiliary friction pulley
50: Compress Spring 60: torsion spring
101: paper-feeding roller 102: friction pad
103: spring 104: passage
201: paper feed roller 202: comber
203: spring 204: torque force limiting device
205: axle 301: comber frame
302: torque force limiting device 303: comber
304: axle
Claims (31)
1. a torque force limiting device is characterized in that, comprises:
Axis body, it has the stage casing and is positioned at the two ends of both sides, described stage casing;
The torsion limiting member, it coats the described stage casing of described axis body and contacts with described axis body, and the part of described torsion limiting member is connected with housing, to apply restriction torsion to described axis body and limit the rotation of described axis body; And
Two friction wheels, it is individually fixed in the described two ends of described axis body.
2. torque force limiting device as claimed in claim 1 is characterized in that, the described two ends of described axis body respectively are formed with annular recess with ccontaining described friction wheel.
3. torque force limiting device as claimed in claim 2 is characterized in that, described annular recess is formed at respectively on two adapters at described two ends of described axis body.
4. torque force limiting device as claimed in claim 1 is characterized in that, each described friction wheel is O type ring or rubber wheel.
5. torque force limiting device as claimed in claim 1 is characterized in that, described torsion limiting member is a coil spring.
6. torque force limiting device as claimed in claim 1 is characterized in that, described torsion limiting member is an elastic body of bestowing described axis body surface positive force.
7. a comber is characterized in that, comprises:
Sleeve forms hollow cylinder;
Axis body, it has the stage casing and is positioned at the two ends of both sides, described stage casing;
The torsion limiting member, it coats the described stage casing of described axis body and contacts with described axis body, and be placed in the described sleeve, and the part of described torsion limiting member is fixed in the inside face of described sleeve, to apply restriction torsion to described axis body and limit the rotation of described axis body; And
Two friction wheels, it is individually fixed in the described two ends of described axis body, and the external diameter of each described friction wheel is greater than the external diameter of described sleeve.
8. comber as claimed in claim 7 is characterized in that, the described two ends of described axis body respectively are formed with annular recess with ccontaining described friction wheel.
9. comber as claimed in claim 8 is characterized in that, described two annular recess are formed at respectively on two adapters at the described two ends of described axis body.
10. comber as claimed in claim 7 is characterized in that, each described friction wheel is 0 type ring or rubber wheel.
11. comber as claimed in claim 7 is characterized in that, described torsion limiting member is a coil spring.
12. comber as claimed in claim 7 is characterized in that, described torsion limiting member is an elastic body of bestowing described axis body surface positive force.
13. comber as claimed in claim 7 is characterized in that, described sleeve has extended arm.
14. comber as claimed in claim 13 is characterized in that, an end of described arm is provided with hollow circuit cylinder.
15. comber as claimed in claim 13 is characterized in that, also comprises paper stopping component, it has first end and second opposed end, and described first end is fixed on the described arm, and described second end is unfixing.
16. comber as claimed in claim 7 is characterized in that, also comprises paper stopping component, has first end and second opposed end, described first end is fixed on the outside face that is parallel to described axis body of described sleeve, and described second end is unfixing.
17. comber as claimed in claim 7 is characterized in that, also comprises two auxiliary friction wheels, they are individually fixed in the described two ends of described axis body, abut described friction wheel.
18. combination is arranged on a kind of paper distributing mechanism on the main body, it is characterized in that, comprises:
Comber, it comprises:
Sleeve forms hollow cylinder;
Axis body, it has the stage casing and is positioned at the two ends of both sides, described stage casing;
The torsion limiting member, it coats the described stage casing of described axis body and contacts with described axis body, and be placed in the described sleeve, the part of described torsion limiting member is fixed in the inside face of described sleeve, to apply restriction torsion to described axis body and limit the rotation of described axis body; And
Two friction wheels, it is individually fixed in the described two ends of described axis body, and the external diameter of each described friction wheel is greater than the external diameter of described sleeve; And
Paper-feeding roller, it is rotated by drive power source, and contacts with described thick wiping wheel, and then applies complete described friction wheel of external force and described axis body, thereby rotates described friction wheel and described axis body;
Wherein, pressure makes described comber pressurize to described paper-feeding roller.
19. paper distributing mechanism as claimed in claim 18 is characterized in that, also comprises:
Compression spring, it contacts described comber, in order to apply described pressure so that described comber pressurize to described paper-feeding roller.
20. paper distributing mechanism as claimed in claim 18 is characterized in that, the described two ends of described axis body respectively are formed with annular recess with ccontaining described friction wheel.
21. paper distributing mechanism as claimed in claim 20 is characterized in that, described annular recess is formed at respectively on two adapters at described two ends of described axis body.
22. paper distributing mechanism as claimed in claim 18 is characterized in that, each described friction wheel is O type ring or rubber wheel.
23. paper distributing mechanism as claimed in claim 18 is characterized in that, described torsion limiting member is a coil spring.
24. paper distributing mechanism as claimed in claim 18 is characterized in that, described torsion limiting member is an elastic body of bestowing described axis body surface positive force.
25. paper distributing mechanism as claimed in claim 18 is characterized in that, described sleeve has extended arm, to connect described comber and described main body.
26. paper distributing mechanism as claimed in claim 25 is characterized in that, an end of described arm is provided with hollow circuit cylinder, and described comber is connected to main body by described hollow circuit cylinder.
27. paper distributing mechanism as claimed in claim 26 is characterized in that, also comprises:
Torsion spring, it is connected to described hollow circuit cylinder, is used for described arm is imposed described pressure so that described comber pressurizes to described paper-feeding roller.
28. paper distributing mechanism as claimed in claim 25 is characterized in that, described arm comprises elastic component, and described arm imposes described pressure so that described comber pressurizes to described paper-feeding roller.
29. paper distributing mechanism as claimed in claim 18 is characterized in that, also comprises paper stopping component, has first end and second opposed end, described first end is fixed on the described comber, and described second end extends towards described paper-feeding roller direction.
30. paper distributing mechanism as claimed in claim 18 is characterized in that, also comprises paper stopping component, has first end and second opposed end, described first end is fixed on the described main body, and described second end extends towards described paper-feeding roller direction.
31. paper distributing mechanism as claimed in claim 18 is characterized in that, also comprises two auxiliary friction wheels, the described two ends that it is individually fixed in described axis body abut described friction wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200662657U CN200999159Y (en) | 2007-01-12 | 2007-01-12 | Torsion limiting device and combing wheel and mechanism using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200662657U CN200999159Y (en) | 2007-01-12 | 2007-01-12 | Torsion limiting device and combing wheel and mechanism using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200999159Y true CN200999159Y (en) | 2008-01-02 |
Family
ID=39013565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200662657U Expired - Lifetime CN200999159Y (en) | 2007-01-12 | 2007-01-12 | Torsion limiting device and combing wheel and mechanism using the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200999159Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219737B (en) * | 2007-01-12 | 2012-01-11 | 虹光精密工业（苏州）有限公司 | Torque force limiting device, combing wheel and combing mechanism using the same |
-
2007
- 2007-01-12 CN CNU2007200662657U patent/CN200999159Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219737B (en) * | 2007-01-12 | 2012-01-11 | 虹光精密工业（苏州）有限公司 | Torque force limiting device, combing wheel and combing mechanism using the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20080102 Effective date of abandoning: 20070112 |