Background technology
Most of at present commercially available printing equipment, no matter be the printer that simple function is only arranged, or integrate functions such as duplicating, scanning, fax, printing multifunctional paper feeding machine (Multi-FuntionPeripheral, MFP), take the design of loam cake flip-up style, to replace ink cartridges more.Please refer to Fig. 1, it illustrates a kind of schematic diagram of traditional loam cake flip-up style affairs machine.General traditional design is the top that scanning means is arranged on affairs machine 100, and just therefore loam cake 110 places need raise the loam cake 110 at scanning means place and just can change when changing ink cartridges.Yet this kind design has many shortcomings, for example after raising loam cake 110 to one fixed angles, needs a bracing or strutting arrangement that loam cake 110 is propped up, and drops to prevent scanning means; And the rotating mechanism that loam cake 110 is opened also can occupy the space of affairs machine, not only increases manufacturing cost, does not more meet the modern to the compact requirement of electronic product.In addition, in the replacing process, dust also drops easily and pollutes machine, and then influences print quality.
For preventing the problems referred to above, also there is increasing affairs machine to substitute traditional loam cake flip-up style design at present with no cover-lifting type design, can not cause bigger inconvenience yet there is the flip design for other part of replacing ink cartridges or things machine inside.Please refer to Fig. 2, it illustrates a kind of schematic diagram of traditional no flip-up style affairs machine.The pressure wheel 240 of affairs machine 200 is adopted fixed design as can be seen from Figure 2, therefore change ink cartridges or and his part or when getting rid of holding paper, the space that its action is carried out all is under pressure stopping of wheel 240 and becomes very narrow, not only user's hand is easily by the inner body scratch of affairs machine 200, also difficult when changing ink cartridges or getting rid of holding paper, take time and effort.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of mechanism for releasing pressing-wheel, the position of pressure wheel can be moved down with the need, to abdicate more space in order to the replacing of ink cartridges or get rid of the action of holding paper.
According to purpose of the present invention, a kind of printing equipment is proposed, comprise that at least one prints a platform and a mechanism for releasing pressing-wheel.Mechanism for releasing pressing-wheel comprises a pedestal, is arranged at a plurality of paper output wheels on the pedestal, a pressure wheel module, a pair of gripper shoe and a protecgulum.Wherein, the pressure wheel module is arranged on the pedestal movably, and comprises a plurality of pressure wheel relative with those paper output wheels.Gripper shoe then is arranged at first side and second side of pedestal respectively, respectively have an arcuate furrow (Arc Slot) on each gripper shoe, and first end of pressure wheel module and second end is slidably in arcuate furrow.Protecgulum then articulates with gripper shoe and is connected the pressure wheel module.When protecgulum is positioned at a primary importance when (being a closed condition), pressure wheel and paper output wheel driving fit; When protecgulum moves to a second place when (being an opening), drive the pressure wheel module and move, pressure wheel is separated with paper output wheel.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
The specific embodiment
The present invention designs a kind of mechanism for releasing pressing-wheel, is arranged in the printing equipment.When utilizing protecgulum drop-down, can affect the pressure wheel module to reach simultaneously forward and move down, more space is abdicated, in order to the replacing of ink cartridges or other part or get rid of the action of holding paper.Action finishes, and only need shut protecgulum can make pressure wheel module recovery original position in the back, does not influence the function of printing.
Mechanism for releasing pressing-wheel of the present invention can be applicable to any one to have in the device of printing function, for example only have the printer of printing function or multifunctional paper feeding machine (Multi-Funtion Peripheral, MFP).Below be to do detailed description of the present invention with an embodiment, so this can't cause limit to the scope that the present invention will protect.In addition, be the clear assembly that shows printing equipment inside, below all do explanation with the diagram that removes upper casing.
Please refer to Fig. 3, it illustrates a kind of printing equipment schematic diagram with mechanism for releasing pressing-wheel according to preferred embodiment of the present invention.There is an output stage (Output Tray) 302 in the place ahead of printing equipment 300, pivotably is articulated in printing equipment 300, with as the usefulness of accepting an output paper.The inboard of output stage 302 then is provided with a protecgulum 304, can be used as the outlet when replacing ink cartridges 320 or getting rid of holding paper.When not changing ink cartridges 320 or not getting rid of holding paper, protecgulum 304 is the state that closes as shown in Figure 3; When needs were changed ink cartridges 320 or got rid of holding paper, protecgulum 304 can be put down as output stage 302.In addition, the printing equipment 300 among Fig. 3 also comprises an ink cartridges 320, is connected across on the axostylus axostyle (shaft) 308 of framework (frame) 306 to move around, to print action.
Please also refer to Fig. 4 A, Fig. 4 B, it illustrates the schematic diagram of mechanism for releasing pressing-wheel among Fig. 3, and wherein protecgulum is closed condition.Mechanism for releasing pressing-wheel mainly comprises: a pedestal 301, a plurality of paper output wheels (Exit Wheel) 360, one pressure wheel modules (Star Wheel Module) 310, a pair of gripper shoe (Supporting plate) 312 and one protecgulum 304.Wherein, paper output wheel 360 is arranged on the pedestal 310; And pressure wheel module 310 is arranged on the pedestal 301 movably, and comprises a plurality of pressure wheel 340, and the position of pressure wheel 340 is corresponding with the position of paper output wheel 360.312 of a pair of gripper shoes are arranged at one first side and one second side of pedestal 301 respectively.Practical application upward pressure wheel module 310 can with pedestal 301 one-body molded each gripper shoe 312 on respectively have an arcuate furrow (Arc Slot) 314, one first end 303 of pressure wheel module 310 and one second end (not being shown among the figure) are then slidably in arcuate furrow 314.In this embodiment, be to make first end 303 and second distal process for outside the arcuate furrow 314, in order to slip.The design of arcuate furrow 314 is the actions that make pressure wheel module 310 carry out forward and to move down.As for 304 of protecgulums is to articulate with gripper shoe 312, and connects pressure wheel module 310.In addition, gripper shoe 312 can be preferably one-body molded with pedestal 301.
Shown in Fig. 4 B, when protecgulum 304 is positioned at primary importance when (promptly being a closed condition), 340 of a plurality of pressure wheel respectively with corresponding a plurality of paper output wheels 360 driving fits.This moment, printing equipment 300 can print action, and print paper will pass between the pressure wheel 340 and paper output wheel 360 of driving fit, arrived output stage 302 as Fig. 3 illustrated via the slit of protecgulum 304 belows.
When protecgulum 304 moves to a second place when (promptly being opening) from primary importance (being a closed condition), can drive pressure wheel module 310 moves, this moment, pressure wheel module 310 first end 303 and second end can slide along the arcuate furrow on the gripper shoe 312 314, and pressure wheel 340 is separated with corresponding paper output wheel 360.Please be simultaneously with reference to Fig. 5, it illustrates the schematic diagram of mechanism for releasing pressing-wheel among Fig. 3, and wherein protecgulum is opening.When protecgulum 304 is positioned at the second place when (being an opening), pressure wheel module 310 is lower than print platform 350, that is to say that the horizontal level of print platform 350 can be higher than the horizontal level of pressure wheel 340, carry out the action that paper was replaced or got rid of to ink cartridges to abdicate more space.In this embodiment, the primary importance of protecgulum 304 and the second place are 90 degree of being separated by.Yet the present invention is not as limit, and the angle of being separated by of the primary importance and the second place is decided (for example in 180 degree) by the design of practical application product, and protecgulum 304 required folding angles are decided by the length and the position of arcuate furrow 314.Therefore protecgulum 304 required folding angles were done suitable adjustment when the length of arcuate furrow 314 and position can be according to practical applications.
It should be noted that mechanism for releasing pressing-wheel more designs a location device in this preferred embodiment, when protecgulum 304 was positioned at primary importance (closed condition), positioner was as limiting protecgulum 304 in the usefulness of primary importance.In this embodiment, positioner comprises a blunt point (Dot) and a pulling force generator (PullingForce Generator), makes protecgulum 304 can be fixed on primary importance after closing.Shown in Fig. 4 A, on gripper shoe 312, form a blunt point 316, when protecgulum 304 was closed condition, outstanding blunt point 316 can tighten protecgulum 304, prevented that protecgulum 304 from dropping.In addition, side in gripper shoe 312 has more installed a pulling force generator additional near the place, rear, as compress spring (Compressed Spring) 318, the two ends of pulling force generator are first ends 303 of connection pressure wheel module 310 and are close on the gripper shoe 312 of first end 303, when protecgulum 304 is positioned at primary importance when (being closed condition), the pulling force of compression spring 318 can be strained protecgulum 304 and drop to prevent it.When protecgulum 304 is positioned at the second place when (being opening), compression spring 318 is extended and is produced an elastic restoring force.
Fig. 6 is the side schematic view according to the mechanism for releasing pressing-wheel of preferred embodiment of the present invention.When protecgulum 304 is positioned at primary importance (0 degree, closed condition), blunt point 316 drops on protecgulum 304 rears with chucking Qianmen 304.Drop-down when protecgulum 304 beginnings, first end 303 of pressure wheel module 310 slides along arcuate furrow 314, and the horizontal displacement s and the vertical displacement amount h of build-up of pressure wheel module 310.(90 degree when protecgulum 304 is positioned at the second place, opening), pressure wheel module 310 will be lower than print platform 350, and this moment, horizontal displacement s and vertical displacement amount h reached maximum, and the part of printing equipment inside such as ink cartridges or the paper clamped can be removed smoothly.
After finishing ink cartridges or other part exchanging or getting rid of holding paper, the user only needs protecgulum 304 is closed.Except user's thrust, the elastic restoring force of compression spring 318 also can provide a pulling force that protecgulum 304 is returned to primary importance from the second place, make pressure wheel 340 once again with paper output wheel 360 driving fits.
In addition, the maximum drop-down angle A of protecgulum 304 then makes a decision according to the position and the length of gripper shoe 312 and arcuate furrow 314, and the present invention also seldom limits this.As shown in Figure 6, when the close framework 306 of contraction in length or position of arcuate furrow 314, then the maximum drop-down angle A of protecgulum 304 will be less than 90 degree.Otherwise when the length of arcuate furrow 314 adds weak point, or the position is the closer to protecgulum 304, and then the maximum drop-down angle A of protecgulum 304 will be greater than 90 degree.No matter maximum drop-down angle A why, when protecgulum 304 is opened, makes the horizontal level of pressure wheel module 310 be lower than the horizontal level of print platform 350, can provide bigger space of user to carry out part exchanging or get rid of holding paper.
According to as can be known above-mentioned, because protecgulum linked pressure wheel module, when protecgulum was opened, the pressure wheel module can change the position thereupon and reduce level height, and the space of changing ink cartridges or getting rid of holding paper is increased.In addition, the position that extra mechanism changes the pressure wheel module need be do not set up, manufacturing cost can be saved yet.
In sum; though disclosed the present invention in conjunction with an above preferred embodiment; yet it is not in order to limit the present invention; anyly be familiar with this operator; without departing from the spirit and scope of the present invention; can be used for a variety of modifications and variations, so protection scope of the present invention should be with being as the criterion that claim was defined.