CN102963754B - Paper loading device - Google Patents
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- CN102963754B CN102963754B CN201210150488.7A CN201210150488A CN102963754B CN 102963754 B CN102963754 B CN 102963754B CN 201210150488 A CN201210150488 A CN 201210150488A CN 102963754 B CN102963754 B CN 102963754B
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Abstract
The device (10) has a rack (21R) which is attached to image forming apparatus (1) along up-down direction. A gear (29a) is rotationally driven by a drive source (24) meshed on rack and is attached to a paper loading table (11). A pulley outer peripheral portion is rotationally driven with gear. A wire (30R) is stuck to vicinity of pulley outer peripheral portion. One end of wire is provided with an extension spring (35R) latched by a fixing portion. The amount of winding of wire is set greater than length of extension spring during raising/lowering of paper loading table.
Description
Technical field
The present invention relates to a kind of paper loading device, its paper loading platform loading paper is arranged in image processing system up and down by lifting mechanism.
Background technology
Usually, the printing device at printed on paper image or word or on paper copy image or word the image processing system such as duplicator in, be provided with the paper loading device of the paper loading platform had for loading paper.
This paper loading device has various structural form, as an example, it is such as image processing system paper feeding device, it is arranged on a side of porous printer, the paper feeding platform being set to load paper is elevated (for example, referring to patent document 1) along the vertical direction by lifting mechanism.
Image processing system paper feeding device disclosed in patent document 1, paper feeding unit is provided with in a side of not shown porous printer, and, between the left and right sidewall of this paper feeding unit, the paper feeding platform loading paper is elevated with the carrying capacity of paper (can move up and down) accordingly along the vertical direction by lifting mechanism.
Specifically, as shown in Figure 6, in traditional image processing system paper feeding device 100, for making the paper feeding platform 101 of loading paper P be elevated in the lifting mechanism 110 of (moving up and down), be formed with the bullport 112 extended along the direction substantially vertical with the left and right sidewall 111 of paper feeding unit (not shown), and along the guide rail 113 of the ora terminalis of this bullport 112.
On the other hand, load the left and right sides end of the paper feeding platform 101 of multiple paper P each via bracket 102 stationary roller shaft 103, this roll shaft 103 rotatably supports deflector roll 104, meanwhile, is connected to outside lift component 114.And deflector roll 104 is configured to move up and down in bullport 112, abut guide rail 113 simultaneously.
In addition, lift component 114 connects an end of driving chain 115, this driving chain 115 extends upward, match with rotatable sprocket wheel 116 of turning back, turn back downwards simultaneously, by the miniature gears 118 (pinion gear) that is fixed on the motor drive shaft 117a of CD-ROM drive motor 117 and the gear 119 be meshed with this miniature gears 118, match with the drive sprocket 120 of the below coaxially rotating integrally driving, upwards turn back, the other end of driving chain 115 is connected to an end of extension spring 121 again.And extension spring 121 extends upward, the other end of extension spring 121 hangs over and is located on the bracket 122 of sidewall 111.
According to said structure, drive the CD-ROM drive motor 117 of lifting mechanism 110, by pinion gear mechanism 118,119, drive sprocket 120 is rotated along arrow B 1 direction, thus driving chain 115 moves along arrow B 2 direction, paper feeding platform 101 is made to increase at the auxiliary lower of extension spring 121 by the lift component 114 be connected with driving chain 115.On the other hand, drive sprocket 120 is rotated in the opposite direction along with above-mentioned side, paper feeding platform 101 is declined by lift component 114.
Patent document 1: Japanese Unexamined Patent Publication 2010-89890 publication
But, usually, when liftably the paper loading platform loading paper P being arranged on image processing system by lifting mechanism, with load during fully loaded paper P for benchmark selectes the CD-ROM drive motor be located in lifting mechanism, need the CD-ROM drive motor that can produce powerful moment of torsion, but, at the image processing system disclosed in patent document 1 with in lifting mechanism 110 set in paper feeding device 100, consider gravity direction and paper feeding platform weight and paper loading weight, extension spring 121 is used to assist by driving chain 115 when paper feeding platform 101 rises, by the elastic force of this extension spring 121, load equalization when load when making paper feeding platform 101 increase and paper feeding platform 101 decline, thus the moment of torsion that can reduce needed for CD-ROM drive motor 117.
But, in the technological thought disclosed in patent document 1, one end of driving chain 115 is connected to paper feeding platform 101 by lift component 114, and the other end of driving chain 115 is connected to an end of extension spring 121, therefore, because amount of movement when paper feeding platform 101 is elevated is directly delivered to driving chain 115, the displacement (deflection) of extension spring 121 needs amount of movement when being elevated with paper feeding platform 101 suitable, thus, to comprise the amount of movement of its length nature when being elevated than paper feeding platform 101 of natural length long for extension spring 121.
Therefore, amount of movement when the paper feeding platform 101 that can load multiple paper is elevated is large, amount of movement when its length nature of extension spring 121 is elevated than paper feeding platform 101 is long, make the setting position being difficult to set extension spring 121, simultaneously, due to the setting position of extension spring 121, cause the problem producing image processing system paper feeding device 100 or the maximization of not shown porous printer.
And, in the technological thought disclosed in patent document 1, when connecting paper feeding platform 101 side and extension spring 121 side, because use driving chain 115 or turn back sprocket wheel 116 or drive sprocket 120, the problem that the price of image processing system paper feeding device 100 is higher also can be produced.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of paper loading device, its paper loading platform loading paper is arranged in image processing system up and down by lifting mechanism, in this paper loading device, for the assisting tension spring of the load for alleviating the CD-ROM drive motor when the paper loading platform of fully loaded paper is risen by lifting mechanism, can its its length be set shorter, and, extension spring can be arranged on efficiently in space vacant in paper loading device or image processing system, the cheap of the lifting mechanism in paper loading device can be made simultaneously.
The present invention makes in view of the above problems, and a first aspect of the present invention provides a kind of paper loading device, and its paper loading platform loading paper is used for being arranged on up and down in image processing system by lifting mechanism,
Described lifting mechanism comprises:
Tooth bar, it is installed to described image processing system along above-below direction;
Gear, it is meshed with described tooth bar, and by being arranged on the rotary driving source rotary actuation of described paper loading platform, makes described paper loading platform along described gear rack elevating integratedly with described paper loading platform;
Pulley, the diameter being formed as peripheral pulley portion is larger than the diameter of described gear, with the rotary actuation on coaxial integratedly of described gear, and one end is fixed on the cable near described peripheral pulley portion or described peripheral pulley portion and reels along the hand of rotation of described gear; And
Extension spring, the other end of described cable is connected to one end of described extension spring, and the other end of described extension spring is fixed on fixed part,
The extracted amount of the described cable rotation along with described gear extracted out from described peripheral pulley portion or the amount of involving in of described cable involved in by described peripheral pulley portion are set as larger than amount of movement during described paper loading platform lifting, make the described extension spring displacement being connected to described cable.
A second aspect of the present invention, when amount of movement during described paper loading platform lifting is designated as X, when the displacement of described extension spring is designated as Y, the relation of X/Y > 1 is made to become on the spot to set the diameter of described gear and the diameter in described peripheral pulley portion.
A third aspect of the present invention, the described other end of the described cable that described peripheral pulley portion reels is by cable direction conversion pulley along the paper width direction conversion direction perpendicular with the throughput direction of described paper, and the described other end of described cable is connected to the described one end of the described extension spring arranged along described paper width direction.
Paper loading device according to a first aspect of the present invention, when loading the paper loading platform of paper by lifting mechanism lifting, lifting mechanism has: tooth bar, and it is installed to image processing system along above-below direction, gear, it is meshed with tooth bar, by the rotary driving source rotary actuation being arranged on paper loading platform, pulley, with gear rotary actuation on coaxial integratedly, and is fixed on the cable near peripheral pulley portion or peripheral pulley portion and reels along the hand of rotation of gear by one end, and extension spring, the other end of cable is connected to one end of extension spring, the other end of extension spring is fixed on fixed part, the extracted amount of the cable rotation along with gear extracted out from the peripheral pulley portion of pulley or the amount of involving in of cable involved in by peripheral pulley portion are set as that amount of movement when being elevated than paper loading platform is large, make the extension spring displacement being connected to cable, thus, the rotary load of rotary driving source when auxiliary paper loading stage is elevated can be carried out with extension spring, simultaneously, can its length of extension spring be set shorter, therefore, this extension spring can be arranged on space vacant in paper loading device or image processing system efficiently, thus make paper loading device or image processing system miniaturization.
And, because without the need to the high price driving chain that illustrates in the introduction or turn back sprocket wheel or drive sprocket before using, therefore, it is possible to form the lifting mechanism be located in paper loading device cheaply.
Paper loading device according to a second aspect of the present invention, amount of movement when being elevated by paper loading platform is designated as X, when the displacement of extension spring is designated as Y, the relation of X/Y > 1 is made to become on the spot to set the diameter of gear and the diameter in peripheral pulley portion, the displacement Y of extension spring can be set as that amount of movement when being elevated than paper loading platform is little, same with first aspect present invention, the its length of extension spring can set shorter, therefore, extension spring can be arranged on space vacant in paper loading device or image processing system efficiently.
Paper loading device according to a third aspect of the present invention, the other end of the cable reeled by peripheral pulley portion by cable direction conversion pulley along the paper width direction conversion direction perpendicular with the throughput direction of paper, the other end of cable is connected to the one end of the extension spring arranged along paper width direction, when the paper loading amount that paper loading platform loads is many, when amount of movement during the lifting of paper loading platform is large, even if its length of the extension spring of auxiliary paper loading stage movement is long, also extension spring can be configured in space vacant in image processing system efficiently along paper width direction, therefore, it is possible to make image processing system miniaturization.
Accompanying drawing explanation
Fig. 1 is semi-sictional view birds-eye view, for illustration of the unitary construction of paper loading device of the present invention.
Fig. 2 is side elevation in partial section, illustrates that, in paper loading device of the present invention, paper loading platform is positioned at the state of lowering position.
Fig. 3 is side elevation in partial section, illustrates that, in paper loading device of the present invention, paper loading platform is positioned at the state of hoisting position.
Fig. 4 is amplification stereogram, illustrates that, in paper loading device of the present invention, pair of right and left is with the gear of pulley.
Fig. 5 is schematic diagram, for illustration of in paper loading device of the present invention, and the relation between the amount of movement of paper loading platform and the displacement of extension spring.
Fig. 6 is lateral plan, for illustration of traditional image processing system paper feeding device.
Detailed description of the invention
An embodiment of paper loading device of the present invention is described in detail referring to Fig. 1 ~ Fig. 5.
Paper loading device of the present invention is applicable to the image processing system such as printing device or duplicator, and the paper loading platform loading paper is arranged in image processing system along the vertical direction up and down by lifting mechanism.
Here, although paper loading device of the present invention can be applicable to have the paper that loading does not print or do not duplicate, the paper paper feeding device this paper being supplied to the paper paper feeding platform in image processing system, or have and the paper printing or duplicated processed in image processing system discharged and any device in the paper paper delivery device for sheet of the paper ADF platform loaded, but, in the following embodiments, only situation paper loading device being applicable to paper paper feeding device is described, omits the explanation to the roughly the same paper paper delivery device for sheet of structure.
embodiment
As shown in FIG. 1 to 3, in paper loading device of the present invention (paper paper feeding device) 10, the paper loading platform (paper paper feeding platform) 11 loading paper P is arranged on a side 1a of the image processing system such as printing device or duplicator 1 along the vertical direction up and down by the carrying capacity that lifting mechanism 20 corresponds to paper P.
Above-mentioned paper loading platform 11 uses and can be formed as oblong-shaped by different a kind of paper P such as about 4000, the metallic material with rigidity or the resin material of load profile size, further, the top ends 11b side of paper loading platform 11 enters in the peristome 1b of the side 1a being formed in image processing system 1.
At the upper surface 11a of paper loading platform 11, for guide and paper P Width that paper P throughput direction is perpendicular pair of right and left guiding column 12L, 12R (only Fig. 1 illustrates) by not shown guiding column mobile device in left-right direction movably interval arrange, thereby, it is possible to load a kind of paper P such as multiple A3 sizes, A4 size, envelope-sized.
And position above paper loading platform 11, feed roll 13 and treatment tube 14 are fixed by pair of right and left arm 15,15 axle, and these two rollers 13,14 can be rotated respectively in the counterclockwise direction by not shown roller rotary driving source.
The feed roll 13 being configured in paper P throughput direction upstream side rotates and contacts the paper P of the superiors be stacked on paper loading platform 11, and the downstream side to throughput direction supplies the paper P of these the superiors.
On the other hand, the treatment tube 14 being configured in feed roll 13 downstream side has friction plate 16 (Fig. 2, Fig. 3), the paper P supplied by feed roll 13 clamps and carries and be separated one by one to prevent overlapping conveying between treatment tube 14 with friction plate 16, afterwards, is transported in image processing system 1.
At this, to formation the main portion of embodiment and the lifting mechanism 20 for making paper loading platform 11 be elevated be described.
In above-mentioned lifting mechanism 20, in order to be elevated paper loading platform 11 along the vertical direction, pair of right and left rack member 21L, 21R compartment of terrain, along the vertical direction, left and right abreast, be vertically mounted on a side 1a of image processing system 1, further, pair of right and left rack member 21L, 21R are that the rack tooth 21a of strip is symmetrically formed towards the rear side being arranged on both paper loading platforms 11 between 21L, 21R.
On the other hand, at the left side face 11c of the top ends 11b side of paper loading platform 11, flat bracket 22 is installed, and, at the right side face 11d of the top ends 11b side of paper loading platform 11, the motor support 23 of L shape is installed.Now, the motor support 23 of L shape is formed flatly the upper surface 23a of level, and vertical side 23b is fixed on the right side face 11d of paper loading platform 11.
The upper surface 23a of the motor support 23 on the right side of being formed in, the CD-ROM drive motor 24 as rotary driving source is vertically mounted to motor drive shaft 24a downwards, and, be fixed with worm screw 25 at motor drive shaft 24a.
At the side 23b that the upper surface 23a of the motor support 23 with L shape is perpendicular, be laterally provided with the Step Shaft 26 in the outside towards facial 11d on the right side of paper loading platform 11, the idle pulley 27 that axle is arranged on this Step Shaft 26 is meshed with the worm screw 25 be fixed on motor drive shaft 24a.
In addition, on the side 23b of left side bracket 22 and right side motor support 23, towards pair of right and left rack member 21L, symmetrical position, 21R side, pair of right and left Step Shaft 28L, 28R left side face 11c towards paper loading platform 11 and each outside horizontally set of right side face 11d, this pair of right and left Step Shaft 28L, 28R axle fixes pair of right and left gear 29L, 29R with pulley.
Above-mentioned pair of right and left with gear 29L, 29R of pulley as shown in Fig. 4 amplifies, use resin material etc. be integrally formed engagement pair of right and left rack member 21L, 21R each rack tooth 21a gear part 29a, to be coaxially connected with this gear part 29a and the sheave portion 29b aftermentioned pair of right and left cable 30L, 30R reeled along the hand of rotation of gear part 29a, axle are fixed on the centre hole 29c of pair of right and left Step Shaft 28L, 28R.
In addition, in the present embodiment, although be integrally formed pair of right and left gear 29L, 29R with pulley, be not limited thereto, also can distinguish formative gear (being equivalent to 29a) and pulley (being equivalent to 29b), and make both rotate integrally on the same axis.
Now, being meshed with the rack tooth 21a of the rack member 21R on right side with the gear part 29a of gear 29R of pulley of right side, also be meshed with idle pulley 27 (Fig. 1 Fig. 3) simultaneously, by being fixed on the worm screw 25 of motor drive shaft 24a by CD-ROM drive motor 24 rotary actuation, but the gear part 29a of the gear 29L with pulley in left side is only meshed with the rack tooth 21a of the rack member 21L in left side.
According to above-mentioned, pair of right and left rack member 21L, 21R is arranged on the left and right of a side 1a of image processing system 1, and, be arranged on the gear 29L of pair of right and left with pulley of paper loading platform about 11, each gear part 29a of 29R and pair of right and left rack member 21L, each rack tooth 21a of 21R is meshed, thus, paper loading platform 11 can not lateral tilting tiltedly, substantially horizontally be elevated, simultaneously, carry the lifting action of the paper loading platform 11 of CD-ROM drive motor 24 relative to pair of right and left rack member 21L, 21R is by the gear 29L of pair of right and left with pulley, 29R carries out.
Pair of right and left is with the gear 29L of pulley, each sheave portion 29b of 29R, less by the diameter be formed as than gear part 29a, and be connected to the connection jut 29b1 of this gear part 29a, lower lip portions 29b2, be formed as larger than the diameter of gear part 29a, make the peripheral pulley portion 29b3 that the cable 30L in left side or the cable 30R on right side reels along the hand of rotation of gear part 29a, and upper lip portions 29b4 composition, the cable 30L in left side or the cable 30R end separately on right side are fixed on lower lip portions 29b2 near peripheral pulley portion 29b3 or this peripheral pulley portion 29b3 or upper lip portions 29b4, the cable 30L in left side or the cable 30R on right side is by larger than the diameter of peripheral pulley portion 29b3 upper, lower lip portions 29b2, 29b4 does not derail directed, and reel along peripheral pulley portion 29b3.
Return Fig. 1 ~ Fig. 3, be laterally provided with pair of right and left Step Shaft 31L, 31R laterally at each lateral surface 21b of pair of right and left rack member 21L, 21R, this pair of right and left Step Shaft 31L, 31R axle is fixed with pair of right and left cable by using pulley 32L, 32R.
And near left and right sidewall 1c, 1d in image processing system 1, be provided with pair of right and left Step Shaft 33L, 33R, this pair of right and left Step Shaft 33L, 33R axle is fixed with cable direction conversion pulley 34L, 34R.
Be wound on the gear 29L of pair of right and left with pulley, the pair of right and left cable 30L of the peripheral pulley portion 29b3 of each sheave portion 29b of 29R, the side, each the other end of 30R is passed through to use pulley 32L along pair of right and left cable, after 32R passes through, by the pair of right and left cable direction conversion pulley 34L be arranged in image processing system 1, cable direction is converted to the paper width direction perpendicular with the throughput direction of paper P by 34R, be connected in image processing system 1 along the pair of right and left extension spring 35L that paper width direction is arranged, each end of 35R, and this pair of right and left extension spring 35L, each the other end of 35R hangs over the pair of right and left fixed part 36L be arranged in image processing system 1, 36R.
Now, because the maximum load number being loaded in the paper P on paper loading platform 11 is the big figure of about 4000 as mentioned above, amount of movement when paper loading platform 11 is elevated is the large amount of movement of about 440mm, thus, the pair of right and left extension spring 35L that auxiliary paper loading stage 11 is elevated, the its length of 35R is also longer, therefore, when by pair of right and left extension spring 35L, when 35R is arranged along paper width direction in image processing system 1, as Fig. 2, shown in Fig. 3, make pair of right and left extension spring 35L, 35R changes both 35L without interfering with each other, the rational height of 35R.Thereby, it is possible to pair of right and left extension spring 35L, 35R are configured in space vacant in image processing system 1 efficiently.
In addition, for the paper loading device 10 that the carrying capacity of the paper P be loaded on paper loading platform 11 is less, amount of movement when paper loading platform 11 is elevated is little, thus, the pair of right and left extension spring 35L that auxiliary paper loading stage 11 is elevated, the its length of 35R is also short, therefore, also can without the need to arranging pair of right and left cable direction conversion pulley, by pair of right and left cable 30L, each the other end of 30R is passed through to use pulley 32L along pair of right and left cable, after 32R passes through, be directly connected to pair of right and left extension spring 35L, each end of 35R, now, also can by pair of right and left extension spring 35L, 35R is arranged on space vacant in paper loading device 10 or image processing system 1, therefore, paper loading device 10 or image processing system 1 miniaturization can be made.
Next, about the action of paper loading device 10 as constituted above, Fig. 2, Fig. 3, Fig. 5 is used to be described for the right side of paper loading platform 11, because same action is synchronously carried out with right side in the left side of not installing the paper loading platform 11 of CD-ROM drive motor, the action for left and right is described as required.
First, as shown in Figure 2, when paper loading device 10 is initial condition, or when paper loading platform 11 loading the paper P of maximum, paper loading platform 11 drops to the position of bottom.
When supplying paper P, drive CD-ROM drive motor 24, the gear part 29a of the gear 29R with pulley on the right side be meshed with the rack tooth 21a of the rack member 21R on right side is rotated in a clockwise direction, paper loading platform 11 rises along the rack member 21R on right side integratedly with the gear 29R with pulley on right side, thus, the paper feeding position that the paper P that paper loading platform 11 rises to the superiors be stacked on paper loading platform 11 contacts with feed roll 13.
On the other hand, when the supply of paper P terminates, when paper loading platform 11 drops to initial position, by CD-ROM drive motor 24, the gear part 29a of the gear 29R with pulley on right side is rotated in the counterclockwise direction on the contrary with when rising.
Next, as shown in Figure 3, when the carrying capacity of the paper P that paper loading platform 11 loads is few, corresponding to the carrying capacity rising paper loading platform 11 of paper P.
As shown in Figure 5, if omit the explanation on the left of when paper loading platform 11 rises, and only right side is described, the gear part 29a of the gear 29R with pulley on the right side be then meshed with the rack tooth 21a of the rack member 21R on right side is rotated in a clockwise direction, the other end being wound on the right side cable 30R of the peripheral pulley portion 29b3 of the sheave portion 29b of the gear 29R with pulley on right side is drawn out of, therefore, with the extracted amount of cable accordingly, the extension spring 35R on right side is along shrinkage direction displacement.
On the other hand, the gear part 29a of the gear 29R with pulley on the right side be meshed with the rack tooth 21a of the rack member 21R on right side when paper loading platform 11 declines rotates in the counterclockwise direction, the other end being wound on the right side cable 30R of the peripheral pulley portion 29b3 of the sheave portion 29b of the gear 29R with pulley on right side is involved in, corresponding to the cable amount of involving in ground, the extension spring 35R on right side is along direction of extension displacement.
At this, if the diameter of the gear part 29a of the gear 29R with pulley on right side is D1 (mm), the diameter of the peripheral pulley portion 29b3 of the sheave portion 29b of the gear 29R with pulley on right side is D2 (mm), amount of movement when paper loading platform 11 is elevated is X (mm), the rotating cycle of the gear 29R with pulley on the right side rotated accordingly with amount of movement X is N (circle), on the right side of when on the right side of when paper loading platform 11 rises, the extracted amount of cable 30R or paper loading platform 11 decline, the amount of involving in of cable 30R is L (mm), the displacement (deflection) of right side extension spring 35R is Y (mm), then displacement (deflection) Y of right side extension spring 35R is the difference that the extracted amount of cable 30R or the amount of involving in L deduct amount of movement X when paper loading platform 11 is elevated, therefore, displacement (deflection) Y of amount of movement X when paper loading platform 11 is elevated and right side extension spring 35R depends on above-mentioned D1, D2.
Now, if the pass of above-mentioned D1, D2 is D1 < D2 < 2D1, then following formula 1 ~ formula 4 is set up.
X=π × D1 × N formula 1
L=π × D2 × N formula 2
Y=L-X=π × (D2-D1) × N formula 3
X/Y ≈ D1/ (D2-D1) formula 4
And, in formula 4, use represent the symbol " ≈ " that approximates be because, according to the shift position of paper loading platform 11, the peripheral pulley portion 29b3 of the sheave portion 29b of the gear 29R with pulley on right side and right side cable pass through with between pulley 32R, in the side, the other end of right side cable 30R by angle of arrival.
In formula 4, as D2=2 × D1, X/Y ≈ 1, what illustrate in background technology is the same, amount of movement X when paper loading platform 11 is elevated is roughly the same with each displacement Y of pair of right and left extension spring 35L, 35R, therefore, its length of pair of right and left extension spring 35L, 35R is longer, thus inconvenience.
Therefore, in present embodiment, in formula 4, by meeting the condition of D1 < D2 < 2D1, following formula 5 is set up.
X/Y > 1 formula 5
According to above-mentioned formula 5, the amount of movement X that each displacement Y of pair of right and left extension spring 35L, 35R can be set to when being elevated than paper loading platform 11 is little, can each its length of pair of right and left extension spring 35L, 35R be set shorter, therefore, pair of right and left extension spring 35L, 35R can be arranged on space vacant in paper loading device 10 or image processing system 1 efficiently, therefore, it is possible to make paper loading device 10 or image processing system 1 miniaturization.
Therefore, along with pair of right and left is with the gear 29L of pulley, the rotation of each gear part 29a of 29R, from the pair of right and left cable 30L that the peripheral pulley portion 29b3 of each sheave portion 29b extracts out, the extracted amount L of 30R or the pair of right and left cable 30L involved in by the peripheral pulley portion 29b3 of each sheave portion 29b, the amount of movement X that the amount of the involving in L of 30R is set to when being elevated than paper loading platform 11 is large, be connected to pair of right and left cable 30L, the pair of right and left extension spring 35L of 30R, 35R displacement, thus can pair of right and left extension spring 35L be used, the rotary load of CD-ROM drive motor 24 when 35R guarantees that auxiliary paper loading stage 11 is elevated.
Thus, as used illustrated by Fig. 6 in the introduction before, because without the need to using the driving chain 115 of high price or turn back sprocket wheel 116 or drive sprocket 120, so the lifting mechanism 20 be located in paper loading device 10 can be formed cheaply.
description of reference numerals
1: image processing system, 1a: side, 1b: peristome, 1c, 1d: left and right sidewall
10: paper loading device
11: paper loading platform, 11a: upper surface, 11b, top ends, 11c: left side face
11d: right side face
12L, 12R: pair of right and left guiding column
13: feed roll, 14: treatment tube, 16: friction plate
20: lifting mechanism
21L, 21R: pair of right and left rack member, 21a: rack tooth
22: tabular bracket, 23:L shape motor support
24: rotary driving source (CD-ROM drive motor), 24a: motor drive shaft, 25: worm screw
26: Step Shaft, 27: idle pulley
28L, 28R: pair of right and left Step Shaft
29L, 29R: pair of right and left with the gear of pulley, 29a: gear part
29b: sheave portion
29b1: connection jut, 29b2: lower lip portions, 29b3: peripheral pulley portion
29b4: upper lip portions, 30L, 30R: pair of right and left cable
31L, 31R: pair of right and left Step Shaft
32L, 32R: pair of right and left cable is by using pulley
33L, 33R: pair of right and left Step Shaft
34L, 34R: pair of right and left cable direction conversion pulley
35L, 35R: pair of right and left extension spring, 36L, 36R: pair of right and left fixed part
D1: pair of right and left is with the diameter of the gear part of the gear of pulley
D2: pair of right and left is with the diameter in the peripheral pulley portion of the sheave portion of the gear of pulley
P: paper, X: the amount of movement during lifting of paper loading platform
Y: the displacement (deflection) of extension spring
Claims (3)
1. a paper loading device, its paper loading platform loading paper is used for being arranged on up and down in image processing system by lifting mechanism,
Described lifting mechanism comprises:
Tooth bar, it is installed to described image processing system along above-below direction;
Gear, it is meshed with described tooth bar, and by being arranged on the rotary driving source rotary actuation of described paper loading platform, makes described paper loading platform along described gear rack elevating integratedly with described paper loading platform;
Pulley, the diameter being formed as peripheral pulley portion is larger than the diameter of described gear, with the rotary actuation on coaxial integratedly of described gear, and one end is fixed on the cable near described peripheral pulley portion or described peripheral pulley portion and reels along the hand of rotation of described gear; And
Extension spring, the other end of described cable is connected to one end of described extension spring, and the other end of described extension spring is fixed on fixed part,
The extracted amount of the described cable rotation along with described gear extracted out from described peripheral pulley portion or the amount of involving in of described cable involved in by described peripheral pulley portion are set as larger than amount of movement during described paper loading platform lifting, make the described extension spring displacement being connected to described cable.
2. paper loading device according to claim 1, it is characterized in that, when amount of movement during described paper loading platform lifting is designated as X, when the displacement of described extension spring is designated as Y, the relation of X/Y > 1 is made to become on the spot to set the diameter of described gear and the diameter in described peripheral pulley portion.
3. paper loading device according to claim 1 and 2, it is characterized in that, the described other end of the described cable that described peripheral pulley portion reels is by cable direction conversion pulley along the paper width direction conversion direction perpendicular with the throughput direction of described paper, and the described other end of described cable is connected to the described one end of the described extension spring arranged along described paper width direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-186881 | 2011-08-30 | ||
| JP2011186881A JP5783851B2 (en) | 2011-08-30 | 2011-08-30 | Paper loading device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102963754A CN102963754A (en) | 2013-03-13 |
| CN102963754B true CN102963754B (en) | 2015-04-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210150488.7A Active CN102963754B (en) | 2011-08-30 | 2012-05-14 | Paper loading device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5783851B2 (en) |
| CN (1) | CN102963754B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104495478A (en) * | 2014-10-23 | 2015-04-08 | 苏州三屹晨光工业设备有限公司 | Discharging mechanism of defective batteries |
| JP6689056B2 (en) * | 2015-10-30 | 2020-04-28 | キヤノンファインテックニスカ株式会社 | Sheet stacking apparatus and image forming apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6711376B2 (en) * | 2001-09-18 | 2004-03-23 | Konica Corporation | Manual feed apparatus |
| CN201494939U (en) * | 2009-09-04 | 2010-06-02 | Duplo(山东)办公设备有限公司 | Feeding paperboard elevating mechanism for integrated plate-making and printing machine |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04246028A (en) * | 1991-01-31 | 1992-09-02 | Ricoh Co Ltd | Lifting gear |
| JPH05132159A (en) * | 1991-11-13 | 1993-05-28 | Fujitsu Ltd | Table lift device of paper hopper |
| JP2000247454A (en) * | 1999-02-23 | 2000-09-12 | Canon Inc | Sheet loading device and sheet feeding device and image forming device |
| JP3628543B2 (en) * | 1999-03-18 | 2005-03-16 | 理想科学工業株式会社 | Paper feeder |
| KR100426596B1 (en) * | 2001-10-31 | 2004-04-08 | (주)케이알디씨 | A discharged paper loader of output equipment |
| JP2003165631A (en) * | 2001-11-30 | 2003-06-10 | Hitachi Printing Solutions Ltd | Table raising/lowering device |
| JP2005035699A (en) * | 2003-07-16 | 2005-02-10 | Konica Minolta Business Technologies Inc | Paper feeding device |
| JP2008007302A (en) * | 2006-06-30 | 2008-01-17 | Kyocera Mita Corp | Sheet feeder |
| JP2009113917A (en) * | 2007-11-06 | 2009-05-28 | Kyocera Mita Corp | Paper loading device and image forming apparatus carrying the same |
| JP5208663B2 (en) * | 2008-10-07 | 2013-06-12 | デュプロ精工株式会社 | Paper feeder for image forming apparatus |
-
2011
- 2011-08-30 JP JP2011186881A patent/JP5783851B2/en active Active
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2012
- 2012-05-14 CN CN201210150488.7A patent/CN102963754B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6711376B2 (en) * | 2001-09-18 | 2004-03-23 | Konica Corporation | Manual feed apparatus |
| CN201494939U (en) * | 2009-09-04 | 2010-06-02 | Duplo(山东)办公设备有限公司 | Feeding paperboard elevating mechanism for integrated plate-making and printing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102963754A (en) | 2013-03-13 |
| JP2013049496A (en) | 2013-03-14 |
| JP5783851B2 (en) | 2015-09-24 |
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