CN101289144B

CN101289144B - Paper feed device

Info

Publication number: CN101289144B
Application number: CN 200710101367
Authority: CN
Inventors: 林献琪; 邓孔欣
Original assignee: Asia Optical Co Inc
Current assignee: Asia Optical Co Inc
Priority date: 2007-04-19
Filing date: 2007-04-19
Publication date: 2013-10-02
Anticipated expiration: 2027-04-19
Also published as: CN101289144A

Abstract

The invention relates to a paper-feeding device which comprises a drive shaft, a swaying arm unit arranged at the drive shaft by a pivot, a paper-taking shaft arranged at the swaying arm unit by a pivot, an idler wheel unit or a damping gear which is arranged between the drive shaft and the paper-taking shaft by a pivot. When the drive shaft is driven, the swaying arm unit can drive the paper-taking shaft to sway up and down by making use of fraction or damping which is generated by the idler wheel unit or the damping gear relatively to the swaying arm unit, thereby realizing the actions of paper-feeding and paper-taking. Therefore, a paper-feeding device with quite easy assembly which can complete the actions of paper-feeding and paper-taking without improving driving power is provided by the invention.

Description

A kind of paper-advance unit

Technical field

The present invention relates to a kind of affairs utensil, particularly a kind of paper-advance unit that is installed on the business machine.

Background technology

Existing business machine can continuous paper-feeding in order to make paper, disposes automatic paper feeder mostly.As shown in Figure 1, existing a kind of paper-advance unit include that axle drive shaft spare 1, the axle that can be subjected to power driven and rotate are located at that shell block 2, axle on this axle drive shaft spare 1 is located in this shell block 2 and and this axle drive shaft spare 1 be arranged in parallel get reel spare 3, between this axle drive shaft spare 1 and this get the idle pulley 4 between the reel spare 3 and be attached at this axle drive shaft spare 1 and this shell block 2 between compression spring 5.This axle drive shaft spare 1 can rotate around self axis, and has back paper-feed 101 and reach first gear 102 that is linked to these back paper-feed 101 1 sides vertically.This shell block 2 has axle and is located at axle pivot end 201 on this axle drive shaft spare 1, reaches between this pivot end 201 with the swing end 202 of these pivot end 201 opposite settings and swings pars intermedia 203 between the end 202.This is got 3 of reel spares and is located on this swing end 202, and the preceding paper-feed 301 that has corresponding to this back paper-feed 101 reaches second gear 302 that is linked to these preceding paper-feed 301 1 sides vertically.

When this axle drive shaft spare 1 is subjected to power driven and when self axis rotates, paper-advance unit utilizes the compressive force of this compression spring 5, make 5 pairs of shell blocks of compression spring 2 produce frictional force, thereby making this shell block 2 is the swing of pivot center with the axis of this axle drive shaft spare 1, be beneficial to the user and put paper, utilize this to get before the reel spare 3 paper-feed 301 simultaneously and finish and get the paper action.

Though this paper-advance unit can be reached the purpose of conveniently putting paper and getting paper automatically, because of this compression spring 5 and the 1 coaxial setting of this axle drive shaft spare, the arm of force is short, therefore if will make this shell block 2 produce swing, just needs bigger driving power; Moreover, with this compression spring 5 and the 1 coaxial setting of this axle drive shaft spare and be installed in this axle drive shaft spare 1 and this shell block 2 between also and be not easy.

Summary of the invention

The object of the present invention is to provide does not a kind ofly need improve to drive power and just can finish and put paper, get paper operation and the quite easy paper-advance unit of assembling.

In order to reach described purpose, the invention provides a kind of like this paper-advance unit, it comprises that axle drive shaft spare, axle are located at get reel spare and the axle that swing arm unit on this axle drive shaft spare, axle be located on this swing arm unit and are located at this axle drive shaft spare and this and get idle pulley unit between the reel spare.Described axle drive shaft spare is can rotate and have first roller around self axis to reach first gear that is linked to this first roller, one side vertically.Described swing arm unit has axle and is located at axle pivot portion on the axle drive shaft spare, reaches pars intermedia between this pivot portion and swing part with the swing part of this opposite setting of pivot portion.The described reel spare of getting is the swing part that is parallel to this axle drive shaft spare and is located in this swing arm unit, and second roller that has corresponding to this first roller reaches second gear that is linked to this second roller, one side vertically.Described idle pulley unit shaft is located at the pars intermedia of this swing arm unit and between this axle drive shaft spare and get between the reel spare, this idle pulley unit has the idle pulley body that is engaged between this first and second gear, the locking part that passes this idle pulley body simultaneously, and packing ground clipping also can make the idle pulley body produce the friction member of frictional damping with respect to this swing arm unit between this locking part and this idle pulley body.

Another program of the present invention provides a kind of like this paper-advance unit: it comprises that axle drive shaft spare, axle are located at get reel spare and the axle that swing arm unit on this axle drive shaft spare, axle be located on this swing arm unit and are located at this axle drive shaft spare and this and get damping gear between the reel spare.Described axle drive shaft spare can rotate first gear that it comprises first roller and is linked to this first roller, one side vertically around self axis; Described swing arm unit have axle be located at axle pivot portion on this axle drive shaft spare, with the swing part of this opposite setting of pivot portion, and the pars intermedia between this pivot portion and swing part; The described reel spare of getting is to be parallel to this axle drive shaft spare and axle is located at swing part on this swing arm unit, and this is got reel spare and has corresponding to second roller of this first roller and second gear that is linked to this second roller, one side vertically; Described damping gear is that axle is located at the pars intermedia of this swing arm unit and between this axle drive shaft spare and get between the reel spare, this damping gear has the idle pulley body that is engaged between this first and second gear, and can make this idle pulley body produce the damping piece of damping with respect to this swing arm unit.

Utilize the setting of this idle pulley unit or this damping gear, when paper-advance unit is driven by this axle drive shaft spare, can convert damping to torsion, and make this swing arm unit swing, put paper or get the paper action to make things convenient for the user to finish.

Description of drawings

Fig. 1 is the solid combination scheme drawing of existing a kind of paper-advance unit;

Fig. 2 is that one of the present invention's first preferred embodiment paper-advance unit is looked up three-dimensional exploded view;

Fig. 3 is a flat assembly drawing of the above-mentioned preferred embodiment of the present invention;

Fig. 4 is the section-drawing along the line 4-4 among Fig. 3;

Fig. 5 is the section-drawing along the line 5-5 among Fig. 3; And

Fig. 6 is the part combination generalized section of second preferred embodiment of the present invention's paper-advance unit.

The specific embodiment

Describe the preferred embodiments of the present invention in detail below in conjunction with accompanying drawing.

Before describing the present invention in detail, be noted that in following description similarly assembly is to represent with identical numbering.

See also Fig. 2, first preferred embodiment of paper-advance unit of the present invention, suitable being installed on the affairs machine (for example duplicator, scanning machine, chopping machine), and can make paper reach the automatic transport purpose.Described paper-advance unit comprises axle drive shaft spare 10, axle and is located at swing arm unit 20 on this axle drive shaft spare 10, axle and is located at and gets reel spare 30 on this swing arm unit 20, and axle is located at this axle drive shaft spare 10 and this and gets idle pulley unit 40 between the reel spare 30.

Described axle drive shaft spare 10 can be located on the casing of affairs machine (not shown) by axle, and is subjected to the propulsion source of this affairs machine to drive and can rotate around self axis; First gear 12 that described axle drive shaft spare 10 has first roller 11 and is linked to these first roller, 11 1 sides vertically.

Described swing arm unit 20 has first side plate 21, is cemented in the top board 22 of these side plate 21 1 top side edge, with the screw locking and be second side plate 23 that is removably installed on this top board 22 and is oppositely arranged with this first side plate 21, run through this first and second side plate 21,22 and axle be located at axle pivot portion 24 on the described axle drive shaft spare 10, and swing part 25 and the pars intermedia 26 between this pivot portion 24 and swing part 25 of these pivot portion 24 opposite settings, described second side plate 23 has the central siphon 231 of being located at pars intermedia 26.

Described get reel spare 30 be parallel to this axle drive shaft spare 10 and the axle be located on the swing part 25 of swing arm unit 20; This is got reel spare 30 and comprises corresponding to second roller 31 of this first roller 11 and second gear 32 that is linked to these second roller, 31 1 sides vertically.

Described idle pulley unit 40 is that axle is located at the pars intermedia 26 of this swing arm unit 20 and between this axle drive shaft spare 10 and get between the reel spare 30; This idle pulley unit 40 comprises the idle pulley body 41 that is engaged between this first and

second gear

12,32, the locking part 42 that passes this idle pulley body 41 and the friction member 43 of packing ground clipping between this locking part 42 and this idle pulley body 41.41 of described idle pulley bodies are located on this central siphon 231.Described locking part 42 lockings are in central siphon 231.Described friction member 43 can adopt materials such as rubber or silica gel to make, and therefore, does the time spent when friction member 43 is subjected to 42 lockings of this locking part, idle pulley body 41 can because of friction member 43 against producing frictional damping.

See also Fig. 3, shown in the solid line of Fig. 4 and Fig. 5, when axle drive shaft spare 10 is driven and when rotating towards a direction wherein (anticlockwise direction as shown in Figure 5), can drive this

first roller

11 and 12 rotations of this first gear, this first gear 12 can rotate by this idle pulley body 41 of interlock simultaneously, but when being subjected to these locking part 42 lockings, this friction member 43 does the time spent, can make this idle pulley body 41 because of friction member 43 against producing frictional damping, this frictional damping meeting converts a torsion to, make that the swing part 25 of this swing arm unit 20 is that the pivot center produces upwards swing with this pivot portion 24, and this second roller 31 also can produce displacement thereupon, and be away from the paper lay down location, thus, just be not easy to use the person and put paper.

See also shown in Fig. 3 and Fig. 5 dotted line, when this axle drive shaft spare 10 is rotated by driving along clockwise direction, can drive this

first roller

11 and 12 rotations of this first gear, this first gear 12 can rotate by this idle pulley body 41 of interlock simultaneously, because friction member 43 is subjected to the locking of locking part 42, therefore can make idle pulley body 41 produce frictional damping with respect to second side plate 23, this frictional damping meeting converts a torsion to, making the swing part 25 of swing arm unit 20 is that the pivot center is to lower swing with axle pivot portion 24, and second roller 31 is compressed and be affixed on the paper lay down location, thereby utilize this second roller 31 downwards, rotate in the time of first roller 11 and finish and get the paper action.

Therefore, paper-advance unit provided by the invention is conveniently put paper and getting automatically the purpose of paper except reaching, and that also can utilize idle pulley unit 40 arranges the increasing arm of force, does not make it to produce swing so do not need bigger driving power just can drive swing arm unit 20.Second side plate 23 of described paper-advance unit removably is linked to top board 22, and idle pulley unit 40 can be assembled in described second side plate 23 in advance, and therefore the assembling of integral body is quite easy.

Again as shown in Figure 6, second embodiment and first embodiment of paper-advance unit provided by the invention are roughly the same, its difference is: the pars intermedia 26 ' in this swing arm unit 20 ' is equiped with damping gear 40 ', and positioning seat 41 ', the axle of this damping gear 40 ' with the pars intermedia 26 ' that is installed in this second side plate 23 ' be located on this positioning seat 41 ' an idle pulley body 42 ' and for making this idle pulley body 41 ' produce the damping piece 43 ' of damping with respect to this swing arm unit 20 '.Described positioning seat 41 ' convexes with axostylus axostyle 411 ', 42 ' of idle pulley body is located on this axostylus axostyle 411 ', and be engaged on this first and

second gear

12,32 and (be similar to the engagement of Fig. 3, not shown) between, at present commercially available damping gear has many kenels, for example with elastic-friction assembly or high viscosity grease as damping piece 43 '.In the present embodiment, this damping piece 43 ' is the high viscosity grease, and fills between the outer peripheral face of the inner ring surface of described idle pulley body 42 ' and this axostylus axostyle 411 '.

Utilize the setting of damping gear 40 ', the damping that produces in the time of also this idle pulley body 41 ' can be driven and rotate with respect to this axostylus axostyle 271 ' converts to and makes swing arm unit 20 ' produce the torsion of swing, conveniently puts paper and finishes the purpose of getting the paper action smoothly thereby reach.

Claims

1. a paper-advance unit comprises the axle drive shaft spare that can be subjected to power driven and rotate, first gear that it has first roller and is linked to this first roller, one side vertically; The swing arm unit, it has axle and is located at axle pivot portion on this axle drive shaft spare, reaches pars intermedia between this pivot portion and swing part with the swing part of this opposite setting of pivot portion; Get reel spare, it is the swing part that is parallel to described axle drive shaft spare and is located in this swing arm unit, and has corresponding to second roller of described first roller and be linked to second gear of this second roller, one side vertically, it is characterized in that:

This paper-advance unit also includes the damping gear simultaneously, it is located at the pars intermedia of this swing arm unit, and between described axle drive shaft spare and get between the reel spare, and have and be engaged on the idle pulley body between this first and second gear and can make this idle pulley body produce the damping piece of damping with respect to described swing arm unit; The swing arm unit has two side plates and is attached at top board between this two side plates opposite side edges, and this two side plate has a pivot portion, swing part and pars intermedia; One of them side plate of swing arm unit is to be removably installed on the top board; The damping gear has also that be installed in can be with respect to the positioning seat of the pars intermedia of the side plate of top board dismounting, and the idle pulley axon is located on this positioning seat, and damping piece is the high viscosity grease, and is arranged between this idle pulley body and this positioning seat; The positioning seat of damping gear has an axostylus axostyle, and the idle pulley axon is located on this axostylus axostyle, and damping piece fills between described idle pulley body inner ring surface and this axostylus axostyle outer peripheral face, produces damping with respect to this spindle rotation when this idle pulley body is driven.