CN102464215B - Paper taking module - Google Patents

Abstract

A paper taking module is provided with a paper taking wheel set and two paper stoppers. The paper stopper is provided with a paper stopper and a fixing part which is pivoted on the paper stopper. The fixing member has a hook portion. The paper taking wheel set is provided with a driving part which can push the fixing part to enable the hook part to be inserted into the hole on the cover plate. Therefore, when the paper taking wheel set moves to the state that the driving part contacts the driven part of the fixing part of the paper stopper, the hook part of the fixing part enters the hole on the cover plate to fix the paper stopper; and when the paper taking wheel set moves to the driving part and leaves from the driven part of the fixing part of the paper stopper, the hook part of the fixing part leaves from the hole on the cover plate, so that the paper stopper can rotate freely.

Description

Pickup module

technical field

The present invention relates to a paper supply device, more specifically, to a paper fetching module.

Background technique

In general offices, business machines such as copiers, printers, and fax machines are quite common. All of the aforementioned business machines have a paper-feeding mechanism for feeding paper one by one into the machine for subsequent related operations.

The traditional paper picking mechanism includes a paper picking roller set and two paper stoppers. The pick-up roller set is pivotally installed inside the cover plate of the office machine. When the paper needs to be picked up, the pick-up roller set will swing downwards so that the rollers are pressed against the paper to drive the rollers to rotate and push the paper forward. In general, the paper stopper is fixed in front of the paper to block the paper. When the paper needs to be picked up, the fixed state of the paper stopper will be released, so that the advancing paper can be pushed away from the paper stopper and continue to move forward.

China Taiwan New Patent No. M320492 patent discloses a paper-feeding mechanism with a paper-stopping function. The paper-picking wheel set is provided with an abutment block to block the movement of the paper-stopping member; but when the paper-picking wheel set moves, the The abutting block will leave the paper stopper along the passage below the paper stopper, so that the paper stopper can be pushed by the paper. In addition, China Taiwan's new patent No. M317928 discloses another paper stop mechanism, which is mainly to provide a gap on the paper stop. to fix it; when the paper needs to be picked up, after the pick-up roller set swings down, the protrusion will move to the notch of the paper stopper, so that the paper stopper can move freely.

The aforementioned patents all use a specific part on the pick-up wheel group to block the paper stopper, but it takes a lot of effort to design a special structure so that this part can leave the paper stopper.

Contents of the invention

The technical problem to be solved by the present invention is to provide a paper-fetching module which has a simple structure and can correctly control the paper stopper for the defects of the complex structure of the paper-fetching mechanism in the prior art.

The technical solution adopted by the present invention to solve the technical problem is to provide a paper picking module, which has a paper picking wheel set and at least one paper stopper, wherein the paper picking wheel set and the paper stopper are pivotally arranged on the cover plate ; The pickup roller set has rollers. The paper stopper has a paper stopper and a fixing part, and the fixing part has a hook part and a driven part; a hole is arranged on the cover plate, corresponding to the hook part of the fixing part of the paper stopper; the pick-up wheel set A drive unit is provided on it.

Thereby, when the pick-up roller set moves to the point where the driving part contacts the driven part of the fixing part of the paper stopper, it will cause the hook part of the fixing part to enter the hole on the cover plate to fix the paper stopper and when the pick-up wheel set moves to the driven part of the drive part away from the fixed part of the paper stopper, it will cause the hook part of the fixed part to leave the hole on the cover, so that the paper stopper Can be rotated freely.

Description of drawings

Fig. 1 is the perspective view of the paper taking module of the first preferred embodiment of the present invention;

Fig. 2 is a perspective view of a paper stopper according to a first preferred embodiment of the present invention;

3 and 4 are schematic diagrams of the first preferred embodiment of the present invention under different viewing angles, showing that the paper stopper is fixed in the standby state;

Fig. 5 and Fig. 6 are schematic diagrams of the first preferred embodiment of the present invention under different viewing angles, showing that the paper stopper is released after the pick-up roller set rotates at an angle;

7 is a cross-sectional view of the first preferred embodiment of the present invention, showing that the paper pushes away from the paper stopper and moves forward; and

Fig. 8 is a perspective view of a paper stopper according to a second preferred embodiment of the present invention.

Detailed ways

The paper fetching module provided by the present invention can be installed in copiers, printers, facsimile machines or other machines that need to send paper out one by one. The embodiment of the present invention is illustrated by taking a copier as an example. As shown in FIG. 1, the paper pickup module has a paper pickup roller set 10 and two paper stoppers 12, and the two paper stoppers 12 are installed on the cover plate 14 of the copier respectively. on the inner ribs 16 (as shown in FIGS. 3 to 7 ), whereby the two can be controlled to swing respectively.

Please refer to FIG. 2 , the paper stopper 12 provided by the first preferred embodiment of the present invention has a paper stopper 18 and a fixing member 20 . The paper stopper 18 has a shaft 22 extending transversely, so that the paper stopper 18 is pivotally mounted on the rib 16 of the cover 14 . There is a pivot seat 24 above the shaft 22 . There is a notch in the center of the upper end of the pivot seat 24 , and shaft holes 26 are respectively formed on the walls on both sides of the notch. One end of the fixing member 20 has a shaft 28 installed in the shaft hole 26 on the pivot seat 24 of the paper blocking member 18 . The shaft 28 of the fixing member 20 is sleeved with a torsion spring 30 , one end leans against the fixing member 20 , and the other end leans against the pivot seat 24 . The fixing member 20 has a hook portion 32 at its outer end, and has a driven portion 34 on the other side of the hook portion 32 . The driven part 34 is a bump with an abutting surface 36 thereon; in this embodiment, the abutting surface 36 is an inclined surface, but under different implementation considerations, the abutting surface 36 may also be a curved surface.

Holes 38 are provided on the ribs 16 of the cover plate 14 . In a normal state, the hook portion 32 of the fixing part 20 of the paper stopper 12 corresponds to the hole 38 on the rib 16 and can be driven into the hole 38 . The function of the torsion spring 30 is to push the fixing member 20 so that the hook portion 32 leaves the hole 38 in a normal state. It is particularly noted that the swing direction of the paper retaining member 18 and the fixing member 20 is perpendicular, so when the hook portion 32 of the fixing member 20 enters the hole 38 on the rib 16, the paper retaining member 18 will also become The state of being fixed and unable to rotate. That is, the entire paper stopper 12 is in a fixed state.

Please refer to FIG. 1 , the pick-up roller set 10 has a base 40 on which a roller 42 is pivoted. The base 40 is pivotally disposed between the two ribs 16 of the cover 14 , and the two paper stoppers 12 are located on two sides of the pick-up roller set 10 . The base 40 and the roller 42 can be controlled to swing and rotate respectively. As for the mechanism of controlling the base 40 and the roller 42 is not the key point of the present invention, it can be achieved by using known devices, and will not be repeated here.

Driving parts 44 are respectively provided on both sides of the base 40 of the pick-up roller set 10 . In this embodiment, the driving part 44 is a protrusion extending from the base 40, and its outer end has an abutment surface 46; in this embodiment, the abutment surface 46 is a slope, but in different implementations Under consideration, the abutting surface 46 may also be a curved surface.

Please refer to FIG. 3 and FIG. 4 , when the copier is in a standby state, the pick-up roller set 10 is at the first position, that is, the top dead center of the upward swing. At this time, the abutting surface 46 of the driving part 44 on the pick-up roller set 10 will abut against the abutting surface 36 of the driven part 34 on the fixing part 20 of the two paper stoppers 12, so as to drive the two The fixing member 20 is deflected outwardly so that the hook portion 32 on the fixing member 20 enters the hole 38 of the rib 16 . Therefore, the two paper stoppers 12 are in a fixed state, and the paper stopper 18 is located in front of the paper 48 to block the paper 48 .

When the paper picking module receives a command to perform a paper supply procedure, please refer to Figures 5 and 6, the paper picking roller set 10 will be driven to swing downward; at this time, the driving part 44 will start to leave the received drive unit 34 . When the pick-up roller set 10 swings at a certain angle and reaches the second position, the driving part 44 on the pick-up roller set 10 will completely leave the driven part 34 on the fixing part 20 of the two paper stoppers 12, because The action of the torsion spring 30 makes the hook portion 32 on the fixing member 20 leave the hole 38 of the rib 16 . At this time, the two paper stoppers 12 are free to rotate without being restrained.

When the pick-up roller set 10 continues to swing downwards to make the roller contact the paper 48, as shown in Figure 7, the rotating roller 42 will push the paper 48 forward, and the paper 48 will push away the paper stopper 18 and move forward. .

After the paper supply procedure is finished, the pick-up roller set 10 will return to the top dead center, so that the driving part 44 is pushed against the driven part 34 on the fixing part 20 of the two paper stoppers 12 again, so that the hook part 32 enters the rib In the hole 38 of the sheet 16, the paper stopper 12 returns to the fixed state shown in FIGS. 3 and 4 .

FIG. 8 shows a paper stopper 50 according to the second preferred embodiment of the present invention, which is also composed of a paper stopper 52 and a fixing member 54 . The difference lies in that the paper blocking member 52 and the fixing member 54 are integrally formed instead of being combined as two independent components as in the first embodiment. In the second embodiment, the fixing member 54 is flexible, and when the pick-up roller group (not shown) pushes against the driven portion 56 at the rear end of the fixing member 54, it will cause the fixing member 54 to bend, so that the hook at the front end Portions 58 enter holes (not shown) in the ribs. Likewise, the bending direction of the fixing member 54 is perpendicular to the swinging direction of the paper stop member 52 . And when the pick-up roller set leaves, the hook portion 58 can leave the hole by virtue of the elasticity of the fixing member 54 itself. Therefore, in the second embodiment, the paper stopper 50 does not need a spring, and can also achieve the same function and action as above.

Supplementary Note: The cooperation between the abutting surface on the driving part and the abutting surface on the driven part can be inclined/inclined, inclined/curved, curved/inclined or curved/curved.

To sum up, the present invention utilizes the combination of the hook portion on the paper stopper and the hole on the rib as a means to fix the paper stopper. In this way, the paper stopper can be fixed reliably, and there is no need to use complicated structures to achieve the purpose of fixing and unfixing the paper stopper.

Any equivalent method changes made by applying the specification and claims of the present invention should be included in the patent scope of the present invention.

Claims (10)

1. a paper taking module, has paper feeding roller group and at least one stop, and wherein this paper feeding roller group and this stop are hubbed on cover plate; This paper feeding roller group has roller; It is characterized in that:

This stop has paper stopper and connecting element, and this connecting element has hook portion and be subject to drive division;

On this cover plate, arrange porose, corresponding to the hook portion of the connecting element of this stop;

In this paper feeding roller group, be provided with drive division;

By this, in the time that this paper feeding roller group moves to primary importance, this drive division compresses this and is subject to drive division, causes the hook portion of this connecting element to enter the hole on this cover plate, to fix this stop; And in the time that this paper feeding roller group moves to the second place, this drive division leaves this and is subject to drive division, cause the hook portion of this connecting element to leave the hole on this cover plate, make this stop free to rotate.

2. paper taking module as claimed in claim 1, is characterized in that, this paper stopper and this connecting element be two independently assembly be mutually articulated.

3. paper taking module as claimed in claim 2, is characterized in that, this paper stopper is articulated on this cover plate, and the swaying direction of this paper stopper is perpendicular to the swaying direction of this connecting element.

4. paper taking module as claimed in claim 1, is characterized in that, in this paper stopper, has pivot connecting seat, on this connecting element, has axle, is articulated on this pivot connecting seat, and is provided with spring on this axle.

5. paper taking module as claimed in claim 1, is characterized in that, this paper stopper and this connecting element are formed in one, and this connecting element has pliability.

6. paper taking module as claimed in claim 5, is characterized in that, this paper stopper is articulated on this cover plate, and the swaying direction of this paper stopper is perpendicular to the bending direction of this connecting element.

7. paper taking module as claimed in claim 1, is characterized in that, the drive division of this paper feeding roller group has bearing surface, and the drive division that is subject to of the connecting element of this stop has bearing surface.

8. paper taking module as claimed in claim 7, is characterized in that, the bearing surface on the drive division of this paper feeding roller group can be inclined-plane or curved surface.

9. paper taking module as claimed in claim 7, is characterized in that, the bearing surface on drive division that is subject to of this stop can be inclined-plane or curved surface.

10. paper taking module as claimed in claim 1, is characterized in that, this hook portion and this are subject to driving part in the two opposite sides of this connecting element.