CN100579881C

CN100579881C - Paper feeding device

Info

Publication number: CN100579881C
Application number: CN200710003959A
Authority: CN
Inventors: 李信文
Original assignee: Primax Electronics Ltd
Current assignee: Primax Electronics Ltd
Priority date: 2007-01-19
Filing date: 2007-01-19
Publication date: 2010-01-13
Anticipated expiration: 2027-01-19
Also published as: CN101224828A

Abstract

The invention provides a paper feed device, which includes a case body, a paper feed module, a paper stopper and a swing arm, wherein, the case body includes a paper feed passage. The paper feed module is pivoted above the paper feed passage and can swing between a paper feed position and a preparation position. The paper stopper is arranged under the paper feed passage. The swing arm is pivoted under the paper feed passage and includes a first end part that touches against the bottom of the paper feed module and a second end part that touches against the bottom of the paper stopper. When the paper feed module moves from the paper feed position to the preparation position, and the paper feed module presses down the first end part, which leads the paper stopper to be lifted by the second end part so as to stretch out of the bottom of the paper feed passage. The invention has the advantages that the paper stopper can be kept at vertical state with the help of the swing arm and a guide groove, thus realizing the paper-stopping effect; at the same time, the rotation of the paper stopper after being pushed by the paper can be avoided.

Description

Paper carrier

Technical field

The present invention relates to a kind of paper carrier, particularly a kind of paper carrier with retaining paper spare.

Background technology

Traditionally, when the user puts into file scanner page by page and carries out scanning motion with manual type, tend to waste many valuable time and human resources.Therefore, developed on the market at present and a kind of automatic paper feeder that can cooperate with scanner, the user only needs file is placed on the paper feed channel of paper carrier, paper carrier will drive be arranged on paper feed channel top a paper feed module with the paper feed-in in regular turn of piling up, finish the scanning sequence of file then automatically.

But, file is placed on the paper feed channel and when preparing to carry out the scanning of file,, causes the paper feed module that the shortcoming that the plurality of sheets of paper of feed-in is simultaneously opened takes place as the user through the inside that regular meeting directly inserts paper feed channel with the leading edge of file.In order to improve this shortcoming, in the present paper carrier mostly the bottom of paper feed channel or above be equiped with a retaining paper spare, when the user puts into paper feed channel with paper, retaining paper spare can be aligned in paper the below of paper feed module against the leading edge of living paper earlier, and when paper carrier drove the operation of paper feed module execution paper feed, retaining paper spare then can be removed and make paper can enter the inside of paper carrier smoothly.

Figure 1A shows that known one is arranged on the paper feed module 11 and the block diagram that keeps off paper spare 12 in the paper carrier.Retaining paper spare 12 is hubbed on the below of paper feed module 11, and wherein, paper feed module 11 comprises a

pressure section

111, and 12 of paper spares of retaining comprise a rake 121 and a paper stopping part 122.When paper feed module 11 swung upwards into ready position, the paper stopping part 122 of retaining paper spare 12 was the state of standing, thereby can bring into play the effect of retaining paper against the leading edge of living paper.When paper feed module 11 swings to the paper feed position downwards and carries out the paper feed operation, 111 of the pressure sections of paper feed module 11 can be depressed into the rake 121 of retaining paper spare 12, paper stopping part 122 is rotated, drop to the bottom of paper feed channel then, thus, paper just can freely can not stopped by retaining paper spare 12.

Then with reference to the relative position of the paper feed module in the known paper carrier shown in Figure 1B 11 with retaining paper spare 12.There is following point in the retaining paper spare 12 of above-mentioned known paper carrier, promptly, when the user opens a stacker on the paper feed channel of putting into paper carrier, the paper St that is positioned at top layer directly is depressed into the rake 121 of retaining paper spare 12 possibly under the user exerts oneself the situation of excessive or the paper front edge that do not align in advance, drop to the bottom of paper feed channel thereby cause paper stopping part 122 to rotate, thereby lose the effect of retaining paper.No. 6792241 disclosed paper carrier of patent of invention of the U.S. promptly adopted above-mentioned this retaining paper spare and paper feed module.

Summary of the invention

One of main purpose of the present invention is to provide a kind of paper carrier, its auxiliary retaining paper spare that makes by a Swing Arm and a guide groove maintains upright state, thereby reach the effect of retaining paper, can avoid keeping off paper spare in the situation that is subjected to rotating after paper is pushed simultaneously.

The invention provides a kind of paper carrier, comprising:

One housing is provided with a paper feed channel in the housing;

One paper feed module is hubbed at the top of paper feed channel, and the paper feed module comprises a paper feed roller, a comber and a fin;

One retaining paper spare is arranged at the position of paper feed channel below near the paper feed roller; And

One Swing Arm is hubbed at the position of paper feed channel below near comber, and Swing Arm comprises a first end and a second end, and wherein, first end can be resisted against the bottom of fin, and the second end then is resisted against the bottom of retaining paper spare.

Preferably, the second end of Swing Arm is an elastic element.

Preferably, paper carrier also comprises a guide groove, and this guide groove is arranged at paper feed channel bottom moving with guiding retaining paper spare.

The invention provides a kind of paper carrier, comprising:

One housing is provided with a paper feed channel in the housing;

One paper feed module is hubbed at the top of paper feed channel, and this paper feed module comprises a fin, and this paper feed module can be swung between a paper feed position and a ready position;

One keeps off paper spare, is arranged at the below of paper feed channel; And

One Swing Arm, a second end that comprises a first end and be resisted against retaining paper spare bottom;

Wherein, when the paper feed module when the paper feed position moves to ready position, this flaps down first end makes retaining paper spare by the lifting of the second end institute, protrudes in the bottom of paper feed channel then.

Preferably, when the paper feed module when ready position moves to the paper feed position, retaining paper spare descends and enters this

Preferably, when the paper feed module when ready position moves to the paper feed position, retaining paper spare descends and enters this paper feed channel bottom.

Preferably, paper carrier also comprises a guide groove, and this guide groove is arranged at bottom the moving with guiding retaining paper spare of paper feed channel.

Compare with conventional art, the invention has the advantages that, it can maintain upright state by the auxiliary retaining paper spare that makes of Swing Arm and guide groove, thereby reaches the effect of retaining paper, can avoid keeping off paper spare in the situation that is subjected to rotating after paper is pushed simultaneously.

Description of drawings

By following accompanying drawing and explanation, can more in depth understand the present invention:

Figure 1A shows paper feed module in the known paper carrier and the block diagram that keeps off paper spare;

Figure 1B shows paper feed module in the known paper carrier and the relative position that keeps off paper spare;

Fig. 2 is the External view that shows the paper carrier of a preferred embodiment of the present invention;

Fig. 3 is the block diagram that shows paper feed module in the paper carrier, retaining paper spare and Swing Arm;

Fig. 4 A shows when the paper feed module is positioned at ready position, and the interior retaining paper spare of paper carrier is lifted and protrudes in situation bottom the paper feed channel;

Fig. 4 B shows that when the paper feed module was positioned at the paper feed position, the retaining paper spare in the paper carrier dropped to the situation of paper feed channel bottom;

Fig. 4 C shows that when paper was urged to the first end of Swing Arm, the second end of Swing Arm produced the situation of deformation;

Fig. 4 D shows that the second end of Swing Arm returns to the situation of original state when paper passes through the first end of Swing Arm; And

Fig. 4 E shows when the paper feed module is finished the paper feed operation and when getting back to ready position, and the interior retaining paper spare of paper carrier is lifted once more and protrudes in situation bottom the paper feed channel.

Wherein, description of reference numerals is as follows:

Paper feed module 11 fin 211A pressure sections 111 paper feed rollers 212

Retaining paper spare 12 combers 213 rakes 121 axle drive shafts 214

Paper stopping part 122 retaining paper spares 22 paper St grooves 221

Paper carrier 2 Swing Arms 23 housings 20 first ends 231

202 rotating shafts 233 of paper feed channel 201 the second ends 232 guide grooves

Paper feed module 21 paper S frameworks 211

The specific embodiment

How make retaining paper spare maintain the explanation that way that upright state reaches retaining paper effect please refer to the following example relevant for paper carrier provided by the present invention by Swing Arm and guide groove auxiliary.

Fig. 2 is the External view that shows the paper carrier of a preferred embodiment of the present invention.Paper carrier 2 comprises a housing 20, a paper feed module 21, a retaining paper spare 22 and a Swing Arm 23 (please refer to Fig. 3).Be provided with a paper feed channel 201 in the housing 20, in order to the paper S of carrying user institute desire scanning.Paper feed module 21 is hubbed on the top of paper feed channel 201, in order to carrying out the paper feed operation, thereby with the inside of paper S feed-in paper carrier 2.Paper feed module 21 comprises a framework 211, a paper feed roller 212, a comber 213 (please refer to Fig. 4 A), and one pass framework 211 and be set in axle drive shaft 214 on the comber 213, wherein, axle drive shaft 214 is connected in the actuating device (not shown) in the paper carrier 2, thereby when paper carrier 22 when not carrying out the paper feed operation or having finished the paper feed operation, paper feed module 21 just can be activated the driving of device and swing upwards into a ready position; When paper carrier 2 carried out the paper feed operation, the driving that paper feed module 21 can be activated device swung to a paper feed position downwards, and then made paper feed roller 212 can touch the end face of paper S, carried out the paper feed operation then.

Paper carrier 2 provided by the present invention mainly is to bring into play retaining paper function by paper feed module 21, retaining paper spare 22 and Swing Arm 23 threes' cooperation, and Fig. 3 is the block diagram that shows paper feed module 21, retaining paper spare 22 and Swing Arm 23 threes.At first, Swing Arm 23 comprises a first end 231, the rotating shaft 233 of a second end 232 and between first end 231 and the second end 232, therefore make that first end 231 and the second end 232 have the oscillatory characteristic at the both ends that are similar to seesaw, wherein, first end 231 can be resisted against the bottom of paper feed module 21, and the second end 232 then can be resisted against the bottom of retaining paper spare 22.Paper feed module 21 (supposes that paper feed roller 212 is positioned at the front end of paper feed module 21 in the outside of its framework 211 near the position of tail end, comber 213 is positioned at the tail end of paper feed module 21) a fin 211A is set, in order to when paper feed module 21 when the paper feed position upwards is rocked to ready position, fin 211A can be pressed on the top of the first end 231 of Swing Arm 23 down, and then cause the second end 232 of Swing Arm 23 upwards to swing, to keep off 22 liftings of paper spare then, and when paper feed module 21 when ready position swings to the paper feed position downwards, 22 declines of retaining paper spare, thus the bottom of paper feed channel 201 entered.In addition, forming a location structure in the bottom of retaining paper spare, for example is a groove 221, combines in order to the second end 232 with Swing Arm 23.

Fig. 4 A to Fig. 4 E is the part paper feed process that shows present embodiment paper carrier 2, and the relative position and the function situation of paper feed module 21 in the paper carrier 2, retaining paper spare 22 and Swing Arm 23 is described thus.

At first with reference to Fig. 4 A, in the paper carrier 2 that present embodiment provided, paper feed module 21 is hubbed at the top of paper feed channel 201 in the housing 20, and includes framework 211, paper feed roller 212, comber 213 and an axle drive shaft 214; Retaining paper spare 22 is arranged on the position of paper feed channel 201 belows near paper feed roller 212; Swing Arm 23 then is hubbed at the position of paper feed channel 201 belows near comber 213.In addition, the paper carrier 2 that present embodiment provided also comprises the guide groove 202 of upright (or tilting a little), and it is arranged at the bottom of paper feed channel 201, in order to moving up and down of ccontaining retaining paper spare 22 and guiding retaining paper spare 22.

Continuation is with reference to Fig. 4 A, and when paper carrier 2 did not carry out the paper feed operation as yet or finished the paper feed operation, paper feed module 21 was activated the driving of device and swings upwards into ready position.Upwards be rocked in the process of ready position in paper feed module 21, the fin 211A that is positioned at paper feed module 21 rear ends can press down the top of the first end 231 of Swing Arm 23, and then make the second end 232 of Swing Arm 23 upwards swing, to keep off 22 liftings of paper spare then, the retaining paper spare 22 that originally is arranged on paper feed channel 201 belows will erectly protrude in the bottom of paper feed channel 201 along guide groove 202 shown in Fig. 4 A, thereby can bring into play the effect of retaining paper.

Continuation is with reference to Fig. 4 A, when the user is placed on paper S in the paper feed channel 201 and the leading edge of paper S is pushed through retaining during paper spare, retaining paper spare 22 still can maintain upright state under the lifting of the clamping of guide groove 202 and Swing Arm 23, thereby can bring into play the function of keeping off paper.

With reference to Fig. 4 B, when paper carrier 2 carried out the paper feed operation, paper feed module 21 just can be activated the driving of device and swing to the paper feed position downwards, makes paper feed roller 212 touch the end face of paper S afterwards, can begin to carry out the paper feed operation then.Be rocked to downwards in the process of paper feed position in paper feed module 21, the fin 211A that is positioned at paper feed module 21 rear ends can upwards swing and no longer press down the first end 231 of Swing Arm 23, retaining paper spare 22 also no longer is subjected to the lifting of the second end 232, thereby drops to the bottom of paper feed channel 201.At this moment, just can be moved to the inside of paper carrier 2 by the paper S of paper feed roller 212 feed-ins by the top of retaining paper spare 22.

With reference to Fig. 4 C, when paper S when the first end 231 of Swing Arm 23 is moved and be urged in the inside of paper carrier 2, for fear of the second end 232 of Swing Arm 23 upwards swing will keep off paper spare 22 and lift and scratch paper S, therefore, the second end 232 special elastic elements that adopt of the Swing Arm 23 that present embodiment provided, for example be a shell fragment or a Hookean spring, thus, when paper S is urged to the first end 231 of Swing Arm 23, just can make retaining paper spare 22 be unlikely by the deformation that elastic element produced and protrude on the paper feed channel 201 and scratch paper S, or reduce the outstanding degree of retaining paper spare 22 and reduce paper S by the possibility of scratch.

With reference to Fig. 4 D, when paper S passed through the first end 231 of Swing Arm 23 fully, the first end 231 of Swing Arm 23 promptly can upwards swing and make the second end 232 that produces deformation to restore to the original state.

With reference to Fig. 4 E, when paper carrier 2 is finished the paper feed operation, paper feed module 21 promptly can be activated the driving of device and swing upwards into ready position, simultaneously, the fin 211A that is positioned at paper feed module 21 rear ends then can be depressed into the top of the first end 231 of Swing Arm 23, and then will keep off 22 liftings of paper spare and get up to make its bottom that protrudes in paper feed channel 201, thereby performance retaining paper effect.

Set retaining paper spare can't be brought into play the reason of keeping off the paper function and be that known retaining paper spare is a turnable design in the known paper carrier, therefore, is easy in the function of being pushed back forfeiture retaining paper by paper.And retaining paper spare provided by the present invention can remain on upright state by the auxiliary retaining paper spare that makes of guide groove and Swing Arm when paper carrier does not carry out the paper feed operation, thus the effect of performance retaining paper.

Above-described embodiment only is for technical conceive of the present invention and characteristics are described; its purpose is to enable those skilled in the art to understand content of the present invention and implement according to this; can not limit scope of the present invention with it, promptly all equivalent variations of doing according to design disclosed in this invention or revise must be encompassed in the scope that claims of the present invention ask for protection.

Claims

1. paper carrier comprises:

One housing is provided with a paper feed channel in this housing;

One paper feed module is hubbed at the top of this paper feed channel, and this paper feed module comprises a paper feed roller, a comber and a fin;

One retaining paper spare is arranged at the position of this paper feed channel below near this paper feed roller; And

One Swing Arm is hubbed at the position of this paper feed channel below near this comber, and this Swing Arm comprises a first end and a second end, and wherein, this first end can be resisted against the bottom of this fin, and this second end is resisted against the bottom of this retaining paper spare.

2. paper carrier as claimed in claim 1, wherein, this second end is an elastic element.

3. paper carrier as claimed in claim 2, wherein, this elastic element is a shell fragment.

4. paper carrier as claimed in claim 2, wherein, this elastic element is a Hookean spring.

5. paper carrier as claimed in claim 1, wherein, this paper carrier also comprises a guide groove, this guide groove is arranged at the bottom of this paper feed channel to guide moving of this retaining paper spare.

6. paper carrier comprises:

One housing is provided with a paper feed channel in this housing;

One paper feed module is hubbed at the top of this paper feed channel, and this paper feed module comprises a fin, and this paper feed module can be swung between a paper feed position and a ready position;

One keeps off paper spare, is arranged at the below of this paper feed channel; And

One Swing Arm, a second end that comprises a first end and be resisted against this retaining paper spare bottom;

Wherein, when this paper feed module when this paper feed position moves to this ready position, this first end of this flaps down makes this retaining paper spare by this second end lifting, protrudes in the bottom of this paper feed channel then.

7. paper carrier as claimed in claim 6, wherein, when this paper feed module when this ready position moves to this paper feed position, this retaining paper spare descends and enters the bottom of this paper feed channel.

8. paper carrier as claimed in claim 6, wherein, this paper carrier also comprises a guide groove, this guide groove is arranged at the bottom of this paper feed channel to guide moving of this retaining paper spare.