CN1611801A - Open-close lid braking mechanism and printer thereof - Google Patents
Open-close lid braking mechanism and printer thereof Download PDFInfo
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- CN1611801A CN1611801A CN 200410085998 CN200410085998A CN1611801A CN 1611801 A CN1611801 A CN 1611801A CN 200410085998 CN200410085998 CN 200410085998 CN 200410085998 A CN200410085998 A CN 200410085998A CN 1611801 A CN1611801 A CN 1611801A
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- close lid
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Abstract
In this brake mechanism 100 for the opening cover 4 in a printer 1, a cam follower 170 is interlocked with opening action of the opening cover 4 to slide cam surfaces 121-124. To rotation quantity of the opening cover 4, oscillation quantity of the cam follower 170 by the cam surface 121 is smaller than oscillation quantity of the cam follower 170 by the cam surfaces 124 and 123. When the opening cover 4 is opened and closed, the cam follower 170 slides the cam surface 121 in a lockable state, so that smaller break force is applied to the opening cover 4 to prevent incomplete closure of the opening cover 4. After unlocking, the cam follower 170 slides the cam surfaces 124 and 123 to add larger brake force, so that quick opening of the opening cover 4 is prevented.
Description
Technical field
The present invention relates to a kind of braking force that applies, so that can fiercely not open and close the arrestment mechanism of open-close lid of the web-taking in device etc. of roll paper printer.
Background technique
On the open-close lid that is installed on the electronic equipment such as printer, have and prevent its fierce arrestment mechanism that opens and closes.As arrestment mechanism, known have, by the frictional force of utilizing helical spring spring force to produce, the articulated section of open-close lid is applied mechanism's (patent documentation 1,2) of braking force, or form the slip surface of regulation curved surface in the articulated section of open-close lid, utilization to the articulated section of open-close lid applies the mechanism (patent documentation 3) of braking force etc. at this slip surface with along the kinetic force of friction that produces between the friction slip portion of sliding herein.
In addition, for preventing to open unintentionally open-close lid, generally has locking framework at closed position locking open-close lid.For example, open and close the open-close lid of the web-taking in device of roll paper printer, on the lock pin that is installed on the printer body side, the hock of engaging open-close lid side, thus form lock state.Hock generally is configured in the both sides of open-close lid, and it is loosening that open-close lid is taken place.
Patent documentation 1: the spy opens flat 11-354941 communique
Patent documentation 2: the spy opens the 2003-56545 communique
Patent documentation 3: the spy opens flat 10-252740 communique
Herein, if increase the braking force act on open-close lid, then since open-close lid with the jogging speed switch, so when the switch of open-close lid, can prevent really that big impact force action is in open-close lid etc.But if switching speed is slow, when closing the locking open-close lid, if the operator presses open-close lid then might form the open-close lid distortion, a side of the hock of its both sides is stuck in earlier on the lock pin, and the opposing party's hock still is in the not monolateral closed condition of fastening state.That is, though the central authorities of operator presses open-close lid, about hock be stuck in simultaneously on the lock pin just passable since generally push the deflection either party position, the left and right sides, so be absorbed in the possibility height of this monolateral closed condition.
In addition, in roll paper printer etc.,, use with the vertical state of putting on wall etc. sometimes sometimes under state horizontal on the horizontal plane of cashier etc., to use.Under situation about using with the vertical state of putting, being arranged to open-close lid with its lower end side is the center, up and down the state of Kai Biing.At this moment, when opening open-close lid,,, need to increase braking force so compare when using with horizontal state because because of the deadweight of open-close lid, open-close lid is fiercely opened.But if increase braking force, the possibility that is absorbed in above-mentioned monolateral closed condition increases.
Summary of the invention
The objective of the invention is, when providing a kind of braking force that can eliminate open-close lid simultaneously big and hour the arrestment mechanism of open-close lid of problem.
The present invention, be to be the center with the supporting axle that is bearing on the framework, between closed position and open position, rotate, to utilizing locking framework can apply the arrestment mechanism of the open-close lid of braking force in the rotation of the open-close lid of above-mentioned closed position locking, wherein, have: be installed in cam part on the above-mentioned open-close lid, can be the cam follower of center swing to be supported on swing axis on the above-mentioned framework, with respect to the oscillating motion of above-mentioned cam follower, apply the friction means of the surface friction drag of regulation; Above-mentioned cam part has the rotation along with above-mentioned open-close lid, and above-mentioned cam follower is camming surface slidably; Above-mentioned camming surface has the 1st camming surface zone little with respect to the oscillating quantity of the above-mentioned cam follower of the amounts of rotation of above-mentioned open-close lid, with respect to the oscillating quantity of the above-mentioned cam follower of the amounts of rotation of above-mentioned open-close lid the 2nd camming surface zone greater than above-mentioned the 1st camming surface zone; The above-mentioned open-close lid of having removed the locking that utilizes above-mentioned locking framework turn to above-mentioned open position during, above-mentioned cam follower slides along above-mentioned the 2nd camming surface zone; In the position of above-mentioned open-close lid from the lock out action that begins above-mentioned locking framework, reach above-mentioned closed position during, above-mentioned cam follower slides along above-mentioned the 1st camming surface zone.
In arrestment mechanism of the present invention, from removing the locking of open-close lid, reach open position during, with respect to the amounts of rotation of open-close lid, follow the oscillating quantity of cam follower of surface friction drag swing of regulation big.
Therefore, when opening open-close lid, because big braking force effect, so can fiercely not open the open-close lid that unlocks.Corresponding therewith, when the locking open-close lid, owing to the amounts of rotation with respect to open-close lid, the oscillating quantity of cam follower is little, so it is little to act on the braking force of open-close lid.Therefore, be the locking open-close lid, when pushing this open-close lid, can avoiding being absorbed in the problem of monolateral closed condition by the open-close lid distortion of big braking force control motion.
Herein, even under the situation that open-close lid is closed to the position that locking framework begins to lock,, preferably apply big braking force for fiercely not closing open-close lid.For this reason, at above-mentioned camming surface, formation is with respect to the oscillating quantity of the above-mentioned cam follower of the amounts of rotation of above-mentioned open-close lid the 3rd camming surface zone greater than above-mentioned the 1st camming surface zone, at above-mentioned open-close lid from open position, reach the above-mentioned locking framework of beginning lock out action the position during, above-mentioned cam follower slides just passable along above-mentioned the 3rd camming surface zone.
Below, in the open-close lid on being installed in printer etc., under the situation of horizontal state, even when open-close lid does not need arrestment mechanism, under vertical situation of putting, when opening open-close lid, because the deadweight effect, fiercely open open-close lid, therefore the necessity that arrestment mechanism is installed on open-close lid is all arranged.According to usage mode so, when determining whether to need arrestment mechanism,, preferably arrestment mechanism is set for the mode that can load and unload for dealing with.
Promptly, as long as with arrestment mechanism, formation has the brake unit releasably installed with respect to above-mentioned framework and the formation of the above-mentioned cam part releasably installed with respect to above-mentioned open-close lid, and it is just passable that above-mentioned brake unit is formed the formation with above-mentioned cam follower, above-mentioned swing axis and above-mentioned friction means.
In addition, the friction means as generate the source as braking force can adopt many pieces of belleville springs.In the case, as long as with brake unit, formation has unit framework that is installed on the above-mentioned framework and the formation that supports the swing arm of above-mentioned cam follower in tip portion, with above-mentioned swing arm, it is just passable to form the formation with the base end part that forms tapped hole, forms center hole on belleville spring, as above-mentioned swing axis, as long as adopt, the mode of the tapped hole that closes with the center hole that connects above-mentioned belleville spring and above-mentioned swing, the binder bolt that is connected the said units framework is just passable.By utilizing above-mentioned connecting bolt, the base end part to above-mentioned swing arm compresses above-mentioned belleville spring from the side, can access the frictional force of regulation.
In addition, the present invention relates to printer, it is characterized in that, on the open-close lid of printer, set up the arrestment mechanism of above-mentioned formation.
Herein, the present invention is adapted at the above-mentioned open-close lid with above-mentioned printer, and to extend upward from above-mentioned supporting axle on above-mentioned closed position, the mode of horizontally extending posture on above-mentioned open position is installed under the situation on the above-mentioned framework and uses.For example, under the situation with vertical configuration state configure printer, open-close lid can form so posture.
In addition, as printer,,, can adopt arrestment mechanism of the present invention as the arrestment mechanism of this open-close lid having the container of taking in paper roll and being installed under the situation of open-close lid of opening portion of this container.
In arrestment mechanism of the present invention, from removing the locking of open-close lid, reach open position during, with respect to the amounts of rotation of open-close lid, follow the oscillating quantity of cam follower of surface friction drag swing of regulation big.
Therefore, when opening open-close lid, because big braking force effect, so can fiercely not open the open-close lid that unlocks.Corresponding therewith, when the locking open-close lid, owing to the amounts of rotation with respect to open-close lid, the oscillating quantity of cam follower is little, so it is little to act on the braking force of open-close lid.Therefore, be the locking open-close lid, when pushing this open-close lid, can avoiding being absorbed in the problem of monolateral closed condition by the open-close lid distortion of big braking force control motion.Therefore, if adopt the present invention, can realize eliminating simultaneously the braking force of open-close lid when big and hour the arrestment mechanism of open-close lid of problem.
In addition, if adopt the formation of arrestment mechanism being installed,,, when determining whether to need arrestment mechanism, also can deal with according to usage mode as under the situation of open-close lid that is the printer that uses with vertical configuration state with state removably.
Description of drawings
Fig. 1 is the outward appearance oblique drawing that can use the printer of arrestment mechanism of the present invention.
Fig. 2 is the summary sectional arrangement drawing of the printer of Fig. 1.
Fig. 3 is the summary sectional arrangement drawing under the state opened of the open-close lid of the printer of Fig. 1.
Fig. 4 is the oblique drawing that is located at the printer unit in the printer of Fig. 1 in the expression.
Fig. 5 is illustrated in the printer unit of Fig. 4, opens the oblique drawing of the state that opens and closes side unit.
Fig. 6 is illustrated in the explanatory drawing that the state of having used arrestment mechanism of the present invention is installed on the printer of Fig. 1.
Fig. 7 is illustrated among Figure 16, opens the explanatory drawing of state of the open-close lid of printer.
Fig. 8 is the oblique drawing of the arrestment mechanism of presentation graphs 6.
Fig. 9 is the profile and the oblique drawing of cam part of the arrestment mechanism of presentation graphs 6.
Figure 10 is the oblique drawing and the exploded perspective view of brake unit of the arrestment mechanism of presentation graphs 6.
Figure 11 is the explanatory drawing of action of the arrestment mechanism of expression Fig. 6 when opening open-close lid.
Figure 12 is the explanatory drawing of action of the arrestment mechanism of expression Fig. 6 when opening open-close lid.
Figure 13 is the explanatory drawing of action of the arrestment mechanism of expression Fig. 6 when closing open-close lid.
Among the figure: 1-printer, 4-open-close lid, 5-registration paper exhaust port, 7-paper roll, the 7a-registration paper, 8-paper roll container, 11-printer unit, 12-fixed side unit, 13-opens and closes side unit, and the 15-registration paper is carried road, 20-print head, 21-lettering pressing plate, the 25-feeding roll, 26-air bells roll, 40-body frame, 43-supporting axle, the 43a-rotating center, 51-opens and closes frame, 53-bracketed part, 100-arrestment mechanism, the 110-cam part, 112-roll pin, 113,114, the 116-claw, 115-framework insertion groove, 120-cam path, 121-camming surface, the 122-camming surface, 123-camming surface, 124-camming surface, the 150-brake unit, 151-unit framework, 152-horizontal plate portions, 153,154-bolt hole, 155-vertical panel part, the 156-flange, 157-bolt hole, 160-swing arm, 161-cardinal extremity part, 162-arm body, 163-head portion, 164-connecting bolt (swing axis), 165-friction plate, 166-belleville spring, the 167-fixed plate, 169-sleeve, 170-cam follower.
Embodiment
Below, with reference to accompanying drawing, the arrestment mechanism of having used open-close lid of the present invention is described.
Before the explanation arrestment mechanism,, the printer with the open-close lid that can use arrestment mechanism of the present invention is described with reference to Fig. 1～Fig. 5.
Fig. 1 is the outward appearance oblique drawing of printer, and Fig. 2 is its summary sectional arrangement drawing, and Fig. 3 is the summary sectional arrangement drawing of opening under the state of open-close lid.Printer 1 has the open-close lid 3 of the rectangular box-like shell body 2 that covers side around it, the front part above the override printer and covers the open-close lid 4 of rear section, constitutes printer casing by above-mentioned part.In printer casing, in establish printer unit 11, the position between open-close lid 3,4 forms registration paper exhaust port 5.For the open-close lid 4 of rear side, if operation sliding button 6, its locking framework (with reference to Fig. 6,7) breaks away from, and can open as shown in Figure 3.One opens open-close lid 4, just exposes the container 8 of the paper roll 7 in the printer unit 11, can carry out the exchange of paper roll 7 etc.In addition, one opens the open-close lid 3 of front side, just exposes the ribbon cartridge assembly department 10 of the ribbon cartridge 9 that the colour band in the printer unit 11 releasably is installed, and can carry out the exchange of ribbon cartridge 9 etc.
Part at the rear side of printer unit 11 is formed on when seeing from the side, has the container 8 of the paper roll 7 of the roughly circular-arc bottom surface of opening upward.Registration paper 7a from the paper roll 7 that is accommodated in is herein pulled out via the deflector roll 14 of the fore-end that is configured in container 8, imports to registration paper and carries road 15.Registration paper is carried road 15, inclination road, the place ahead part 17 that has towards the place ahead acclivitous a little conveying road part 16, erects with bigger angle of inclination upward from the front end of this conveying road part 16, inclination road, the rear part 18 that tilts towards the rear and be connected with registration paper exhaust port 5 from the upper end of this inclination road, the place ahead part 17.In Fig. 2, represent registration paper 7a with double dot dash line.
Carry road part 16, by carrying guider 16a and conveyor surface 16b opposed regulation with it.Inclination road, connected the place ahead part 17 by lettering pressing plate 21 regulations of a women's head-ornaments 20a of the print head 20 of impact mode and face-off with it at certain intervals, becomes the printing station of print head 20.Print head 20 is towards the direction configuration of tilting upward, and its printing surface 20a backwards.Corresponding with the inclination of print head 20, the state configuration of the surface of lettering pressing plate 21 also to tilt downwards towards the place ahead.Print head 20 carries on print head carriage 22, and print head carriage 22 can come and go mobile along the balladeur train axis of guide 23 at width direction.
At the upside of print head carriage 22, form the assembly department 10 of ribbon cartridge 9.This assembly department 10 is tilted configuration up backwards also.Therefore, the colour band 9a of the ribbon cartridge 9 of An Zhuaning can install with them between print head 20 and lettering pressing plate 21 abreast herein.
Inclination road, the rear part 18 that is connected with inclination road, the place ahead part 17 is by along the direction of bending conveying guider 28 regulations of extending backward from the upper end of lettering pressing plate 21.In this inclination road, rear part 18, disposing have feeding roll 25, air bells roll 26 and to the chart drive mechanism of the push part (not shown) of feeding roll 25 pushing air bells rolls 26.Feeding roll 25 is configured in the rear side of inclination road, rear part 18, and air bells roll 26, and is pushed to feeding roll 25 1 sides can being supported in roller mounting plate 29 movably to the direction near feeding roll 25 in feeding roll 25 front sides always.
From the registration paper 7a that paper roll 7 is drawn, be clamped between feeding roll 25 and the air bells roll 26, by rotating feeding roll 25, along carrying road 15 to carry by not shown driving source.In addition, in this example, be that lettering pressing plate framework 55 forms lettering pressing plate 21 and the conveying guider 16a that is connected its downside by single part, install in the upper end part of this lettering pressing plate framework 55 and carry guider 28.
Then, near registration paper exhaust port 5, dispose scissor automatic cutting unit 30, cut off registration paper.Automatically cutting unit 30, but but have the movement route ground that clips registration paper and be configured in the dead knife 31 of front side, the driving mechanism 33 that is configured in the moving knife 32 of rear side and moving knife 32 is moved.But be located in the shell 34 in moving knife 32 and the driving mechanism 33.But the registration paper 7a between dead knife 31 and moving knife 32, but be cut off by moving knife 32 slip above dead knife 31.In addition, in the leading edge portion of registration paper exhaust port 5, installation can utilize manually-operable to cut off the cutoff tool 35 of registration paper.
Fig. 4 is the oblique drawing that is located at the printer unit 11 in the print enclosure in the expression, and Fig. 5 is the oblique drawing that the state that opens and closes side unit is opened in expression.Printer unit 11 has fixed side unit 12 and opens and closes side unit 13.Open and close side unit 13,, support by fixed side unit 12 being the state that rotate up and down at the center with its rear end part.
At this routine printer unit 11, for the exchanging operation that can carry out paper roll 7 simply etc., form one and open the open-close lid 4 of the container 8 of paper roll, the registration paper of above-mentioned formation carries road 15 just to form the formation of open state.Therefore, the component parts that constitutes a side who carries road 15 is installed on fixed side unit 12, promptly open and close the component parts that the opposing party who constitutes conveying road 15 is installed on the side unit 13 in mobile side, one opens switching side unit 13, just can open the container 8 of paper roll 7, also can open simultaneously and carry road 15.
Be elaborated below, in fixed side unit 12, be installed with paper roll container 8, carry the dead knife 31 of conveyor surface 16b, print head 20, air bells roll 26 and the automatic cutting unit 30 of road part 16.Corresponding therewith, opening and closing side unit 13, be installed with that regulation is carried the lettering pressing plate framework 55 of road part 16, inclination road, the place ahead part 17 and inclination road, rear part 18 (carrying guider 16a, lettering pressing plate 21) but and guide plate 28, feeding roll 25, the moving knife 32 and the driving mechanism 33 of cutting unit 30 automatically.In addition, open-close lid 4 (with reference to Fig. 3) also is installed.
From Fig. 3, Fig. 5 as can be seen, form standard-sized sheet (open position), then, just can load paper roll 7 by paper roll 7 being fallen into the simple operations of container 8 from the top if will open and close side unit 13.In addition, because conveying road 15 forms open states, the operation of therefore disposing the registration paper 7a that pulls out along conveying road 15 from paper roll 7 is also very simple.In addition, open and close side unit 13 if close, turn back to Fig. 2, state (closed condition) shown in Figure 4, then form registration paper 7a automatically by between print head 20 and the lettering pressing plate 21 and between feeding roll 25 and the air bells roll 26, and the state of drawing from registration paper exhaust port 5.
Below, illustrate in greater detail said fixing side unit 12 and open and close the structure of side unit 13.At first, fixed side unit 12 has body frame 40, in the front part of this body frame 40, sets up the balladeur train axis of guide 23 at width direction.On this balladeur train axis of guide 23, as previously mentioned, supporting the print head carriage 22 that is equipped with print head 20 can come and go mobile state.To cover the state of above-mentioned print head carriage 22 and print head 20, colour band frame 41 is installed, the outer peripheral portion of this colour band frame 41 is the assembly department 10 of ribbon cartridge 9.
In the part of the rear side of body frame 40, the container 8 that is formed for loading paper roll 7, the rear end part in this container 8 is setting up the supporting axle 43 that extends to width direction on body frame 40.This supporting axle 43 becomes the center of rotation that opens and closes side unit 13.
In addition, open and close side unit 13 and have the frame 51 of switching.This opens and closes frame 51, the bracketed part 52,53 about having that direction forwards, backwards extends and link the front end web part 54 of the fore-end of above-mentioned bracketed part 52,53.About the rear end part of bracketed part 52,53, rotate freely by the two end portions of above-mentioned rotary middle spindle 43 and to support.Front end in the front end web part 54 that opens and closes frame 51, lettering pressing plate framework 55 is installed, in its back side paper feeding roll shaft 25a is installed, from opening portion 28a, the 28a that the guide plate on this lettering pressing plate framework 55 28 forms, coaxial shape is fixed on the outer circumferential face of 2 feeding roll body 25b, 25b on the paper feeding roll shaft 25a and forwards gives prominence to.Opening and closing on the front end web part 54 of frame 51, but carrying the moving knife 32 and the driving mechanism 33 of automatic cutting unit 30.
(arrestment mechanism of open-close lid 4)
Fig. 6 is the explanatory drawing that the arrestment mechanism of the open-close lid 4 on printer 1 is carried in expression, the explanatory drawing of the arrestment mechanism when Fig. 7 is expression open-close lid 4 full-gears.This routine arrestment mechanism 100 has cam part 110 on the switching frame 51 that releasably is installed in the switching side unit 13 that open-close lid 4 is housed, releasably is installed in brake unit 150 on the body frame 40 of fixed side unit 12.Cam part 110 is installed in the inner side surface of the left side bracketed part 52 that opens and closes frame 51, and brake unit 150 is installed in the plate portion 40a in the rearward end left side of body frame 40.
In addition, shown in above-mentioned figure, the locking framework 60 of open-close lid 4 has the lock pin 61 that is installed on the fixed side unit 12, the hock 62 that is installed in the head portion of the switching frame 51 that opens and closes side unit 13.Hock 62 can be that rotate the front and back, center with supporting axle 63, and is promoted by not shown push mechanism, rearward pushes the claw portion 62a of the downside of supporting axle 63.Be positioned at open-close lid 4 under the state of closed position, as shown in Figure 6, the claw portion 62a of hock 62 side chain in the past lives lock pin 61, forms lock state.If operation sliding button 6 (with reference to Fig. 1) then forwards rotates hock 62, state unlocks.When closing open-close lid 4, the end face part 62b on the claw portion 62a of hock 62 runs into lock pin 61 at first.This state is the lock out action initial position of locking framework 60, if push to the direction of closing open-close lid 4 from this state, then hock 62 overcomes Driving force and lock pin 61 liftings of the configuration that is fixed, and crosses lock pin 61, forms lock state shown in Figure 6 once more.Because hock 62 is installed in the both sides of the fore-end that opens and closes frame 51, so open-close lid 4 can be locked in closed position loosely.
Fig. 8 only takes off the oblique drawing that arrestment mechanism 10 is represented, Fig. 9 is the profile and the oblique drawing of cam part 11, and Figure 10 is the oblique drawing and the exploded perspective view of brake unit.Cam part 110 for example is a plastic molded article, is formed with columned roll pin 112 on its outer lateral side 111, by the framework insertion groove 115 of outer lateral side 111 and a pair of claw 113,114 regulations.Inner side surface 53a at the left side bracketed part 53 that opens and closes frame 51, form the patchhole (not shown) of roll pin 112, make the outer lateral side 111 of cam part 110 touch the inner side surface 53a of the left side bracketed part 53 that opens and closes frame 51, roll pin 112 is inserted patchhole, under this state, if with roll pin 112 is the center, make cam part 110 rotations, then the edge section of left side bracketed part 53 embeds in the framework insertion groove 115, be formed on a pair of claw 113,114 and be formed on the state of clamping bracketed part 53 between the claw 116 of opposition side, cam part 110 is fixed on the bracketed part 53.Therefore,, make the cam part 110 that is installed on the bracketed part 53, then can unload cam part 110 from bracketed part 53 to the opposition side rotation if be the center with roll pin 112.
In a side of the inner side surface 117 of cam part 110, form cam path 120 at its end portion.This cam path 120, under the state that is installed on the bracketed part 53 that opens and closes frame 51, by the smooth camming surface 121 that extends to above-below direction, be slidingly connected in the lower end of this smooth camming surface 121 and the camming surface 122 that extends to the bending of printer rear, camming surface 124 regulations that are connected the rear end of this camming surface 122 and the camming surface 123 that extends to printer the place ahead, extend with acclivitous a little angle bending from the front end of this camming surface 123 via arc surface towards printer the place ahead.
In the front part of the vertical panel part 155 of unit framework 151, swing arm 160 is installed with the state that above-below direction can be swung.Swing arm 160, the arm body part 162 that has discoid cardinal extremity part 161, extends from this cardinal extremity part 161, from the horizontally extending columned cam follower 170 of outer lateral side of the integrated disc portions 163 of the minor diameter on the top that is formed on arm body part 162.Be formed centrally tapped hole (not shown) in the cardinal extremity part 161 of swing arm 160, swing arm 160 can be the center swing with the binder bolt 164 that connects this hole and be bolted on the vertical panel part 155.
Herein, in the outer lateral side of the cardinal extremity part 161 of swing arm, many pieces of discoid belleville spring 166 clamping friction disks 165 via fixed plate 167, are bonded bolt 164 and compress.Sleeve 168 cylindraceous is inserted and is led in belleville spring 166, according to the length of this sleeve 168, and the decrement of the belleville spring 166 of the link direction of control binder bolt 164.Thus, with the power of regulation,, when swing, can apply the frictional force of regulation from the cardinal extremity part 161 of sandwich swing arm 160.By adjusting the decrement of many pieces of belleville springs 166, can increase and decrease surface friction drag.
By clamping friction plate 165 between unit framework 151 and swing arm 160, can also improve the retentivity of lubricant oil.At this moment, shown in Figure 10 (b), if at slip surface hole (being 4 in the present embodiment) is set, then this part has the effect that becomes lubricant oil delay portion.In addition, unit framework 151 and swing arm 160 are being used under the situation about forming with the SECC of material, and the material of friction plate 165 is by selecting can to improve wearability as other materials such as SUS.
(action specification of arrestment mechanism)
Figure 11～Figure 13 is the explanatory drawing of the action of expression arrestment mechanism 100.Position relation when at first, Figure 11 (a) expression open-close lid 4 is positioned at closed position.In the case, form following configuration relation: with the binder bolt 164 that is fixed on body frame 40 1 sides is the circular circumference face of the cam follower 170 of oscillation center, from the printer rear side, be overlapped on the smooth camming surface 121 of cam part 110 of switch bracket 50 1 sides that open-close lid 4 is installed.
Under this state, if open-close lid 4 is opened in the locking of mechanism 60 (with reference to the Fig. 6) that unlock, then cam part 110 is that rotate upward at the center with supporting axle 43.Cam follower 170 is along with open-close lid 4 opens, and relatively slides downwards along camming surface 121, and the oscillating quantity of swing arm 160 that cam follower 170 is installed is very little.Therefore, when open-close lid 4 began to open, it is minimum that arrestment mechanism 100 acts on the braking force of open-close lid 4.
Shown in Figure 11 (b), if open-close lid 4 is roughly opened 10 degree from closed position, then cam follower 170 breaks away from from the 1st camming surface 121.Shown in Figure 11 (c), if open-close lid 4 is roughly opened 15 degree, camming surface 124 is run into cam follower 170.After this, along with the increase of the aperture (amounts of rotation) of open-close lid 4, cam follower 170 slides to the camming surface 123 that is attached thereto from camming surface 124 on one side, by this camming surface 124 upward pushed on one side.As a result, the swing arm 160 of supporting cam wheel push rod 170 is swung upward.Because swing arm 160 paid surface friction drag by belleville spring 166, so increase the braking force of regulation with respect to the opening action of open-close lid 4.Therefore, open-close lid 4 can fiercely not opened.
In this example, shown in Figure 12 (a), if open-close lid 4 is roughly opened 60 degree, cam follower 170 arrives the end of camming surfaces 123, after this, along with the increase of the aperture of open-close lid 4, along camming surface 123, slides to opposition side.In addition, shown in Figure 12 (b), if open-close lid 4 reaches the fully open position (open position) of opening 90 degree, cam follower 170 turns back to the end of the camming surface side of camming surface 123.
Then, if close the open-close lid 4 that is positioned at open position, then cam part 110 rotates thereupon, and from the cam follower 170 detaching cam faces 123 that stop, and the state of cam follower 170 is run in the end of the camming surface 122 of formation opposite side.Figure 13 (a) expression open-close lid 4 is closed to the state of the position of about 85 degree.Thereafter since with the closing motion interlock of open-close lid 4, cam follower 170 is pushed downwards by camming surface 122, so swing arm 160 is swung downwards.Thus, to the closing motion of open-close lid 4, apply the braking force of regulation.If open-close lid 4 is closed to the roughly aperture of 45 degree, then cam follower 170 arrives the end of camming surface 122, thereafter, along camming surface 122, slides round about.In addition, shown in Figure 13 (c),, then turn back to the other end of camming surface 122 if open-close lid 4 is closed to the roughly aperture of 30 degree.
If continue to close open-close lid 4, then cam follower 170 breaks away from from camming surface 122, shown in Figure 11 (b), forms the state that is overlapped on the camming surface 122.Thereafter, make open-close lid 4 move to closed position during, cam follower 170 slides along camming surface 121.At camming surface 121 is when rotate at the center with supporting axle 43, and the oscillating quantity that pushes the swing arm of swinging 160 by this camming surface 121 is very little.That is, and run under the state of camming surface 122,123,124 at cam follower 170, the oscillating quantity of the swing arm 160 when these camming surfaces are rotated is compared less.Therefore, when closing open-close lid 4, after cam follower 170 broke away from from camming surface 122, is overlapped on the camming surface 121, the braking force that acts on open-close lid 4 reduced.
So, in this example, when closing open-close lid 4, after open-close lid 4 becomes the angle before the closed position, compare, act on little braking force with the braking force that is acted on before this.Therefore,, then can avoid when locking, being out of shape, be absorbed in the problem of monolateral closed condition owing to bigger braking force causes open-close lid 4 if, set the lock out action of beginning locking framework 60 after the pivotal position of the little value switching of braking force.In addition, if suitably set the motion track of camming surface 122,123,124 and the motion track of cam follower 170, then after open-close lid 4 unlocks, move to open position during, and from the open position to the lock out action, begin move during, can apply big braking force to open-close lid 4.Therefore,, just can prevent fierce switch open-close lid 4, problem that the operator is injured or the problem of damaging in generations such as open-close lid component parts if suitably set the value of this braking force.
Herein, this routine arrestment mechanism 100 can load and unload on printer 1.That is, on body frame 40, brake unit 150 is installed releasably,, cam part 110 is installed releasably opening and closing on the frame 51.Therefore, when the switching of open-close lid 4, do not need to act on like that under the situation of braking force, can take off arrestment mechanism 100.For example, to be horizontally set under the situation of using printer 1 under the horizontal state on the cashier, in the switching of open-close lid 4, the braking force that is installed in the torsion spring formation on its supporting axle 43 is promptly passable.
To this, under situation about using with the vertical configuration state that printer 1 is installed on the wall, the closed position of open-close lid 4 is vertical, when opening open-close lid 4, towards the horizontal opening position, utilizes deadweight fiercely to open from vertical closed position.Therefore need big braking force.In such cases,,, can prevent from fiercely to open open-close lid by to the big braking force of open-close lid 4 effects if arrestment mechanism 100 is installed.In addition, owing to the position that the lock out action from open-close lid 4 begins, big braking force is switched to little braking force, closes so can also avoid taking place the monolateral of open-close lid 4.
Claims (7)
1. the arrestment mechanism of an open-close lid to being the center with the supporting axle that is bearing on the framework, rotates between closed position and open position, and the rotation that can utilize locking framework to be locked in the open-close lid of above-mentioned closed position applies braking force, it is characterized in that,
Have:
Be installed in the cam part on the above-mentioned open-close lid,
Can be supported on cam follower that swing axis on the above-mentioned framework is the center swing and
The oscillating motion of above-mentioned cam follower is applied the friction means of the surface friction drag of regulation;
Above-mentioned cam part has the rotation along with above-mentioned open-close lid, and above-mentioned cam follower is camming surface slidably;
Above-mentioned camming surface has the 1st camming surface zone little with respect to the oscillating quantity of the above-mentioned cam follower of the amounts of rotation of above-mentioned open-close lid, with respect to the oscillating quantity of the above-mentioned cam follower of the amounts of rotation of above-mentioned open-close lid the 2nd camming surface zone greater than above-mentioned the 1st camming surface zone;
During having removed the above-mentioned open-close lid that utilizes the locking that above-mentioned locking framework carries out and turning to above-mentioned open position, above-mentioned cam follower slides along above-mentioned the 2nd camming surface zone;
During the position that above-mentioned open-close lid begins from the lock out action of above-mentioned locking framework arrived above-mentioned closed position, above-mentioned cam follower slided along above-mentioned the 1st camming surface zone.
2. the arrestment mechanism of open-close lid as claimed in claim 1 is characterized in that,
Above-mentioned camming surface has with respect to the oscillating quantity of the above-mentioned cam follower of the amounts of rotation of above-mentioned open-close lid the 3rd camming surface zone greater than above-mentioned the 1st camming surface zone;
Above-mentioned open-close lid arrived the position that the lock out action of above-mentioned locking framework begins from above-mentioned open position during, above-mentioned cam follower slided along above-mentioned the 3rd camming surface zone.
3. the arrestment mechanism of open-close lid as claimed in claim 1 or 2 is characterized in that,
Have at the brake unit of releasably installing on the above-mentioned framework, the above-mentioned cam part on above-mentioned open-close lid, releasably installed;
Above-mentioned brake unit has above-mentioned cam follower, above-mentioned swing axis and above-mentioned friction means.
4. the arrestment mechanism of open-close lid as claimed in claim 3 is characterized in that,
Above-mentioned brake unit has the unit framework that is installed on the above-mentioned framework, the swing arm of above-mentioned cam follower is installed in tip portion;
Above-mentioned swing arm has the base end part that is formed with tapped hole;
Above-mentioned friction means is many pieces of belleville springs that are formed with center hole;
Above-mentioned swing axis has the tapped hole of the center hole that connects above-mentioned belleville spring and above-mentioned swing arm and is attached at binder bolt on the said units framework;
By above-mentioned binder bolt, make above-mentioned belleville spring press the base end part of above-mentioned swing arm from the side.
5. a printer is characterized in that, has the arrestment mechanism of any one described open-close lid in the claim 1～4.
6. printer as claimed in claim 5 is characterized in that,
Above-mentioned open-close lid being formed on above-mentioned closed position from above-mentioned supporting axle vertical extent upward, is installed on the above-mentioned framework in the mode of the horizontally extending posture of above-mentioned open position.
7. as claim 5 or 6 described printers, it is characterized in that having:
Take in paper roll the container and
Be installed in the above-mentioned open-close lid of the opening portion of above-mentioned container.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003367495A JP4400175B2 (en) | 2003-10-28 | 2003-10-28 | Opening / closing lid braking mechanism and printer |
| JP2003367495 | 2003-10-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1611801A true CN1611801A (en) | 2005-05-04 |
| CN100361822C CN100361822C (en) | 2008-01-16 |
Family
ID=34645486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100859986A Expired - Fee Related CN100361822C (en) | 2003-10-28 | 2004-10-27 | Open-close lid braking mechanism and printer thereof |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4400175B2 (en) |
| CN (1) | CN100361822C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100493922C (en) * | 2007-02-07 | 2009-06-03 | 上海博施电子技术有限公司 | Pulling and lifting type storehouse opening device for the printer |
| CN106163818A (en) * | 2014-04-10 | 2016-11-23 | 佐藤控股株式会社 | Printer |
| CN109424631A (en) * | 2017-08-29 | 2019-03-05 | 加藤电机（香港）有限公司 | Device for opening and closing manuscript crimping plate and the business machine for having the device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4661591B2 (en) * | 2005-12-27 | 2011-03-30 | セイコーエプソン株式会社 | Printer |
| US7878724B2 (en) | 2005-12-27 | 2011-02-01 | Seiko Epson Corporation | Printer |
| US11772395B2 (en) * | 2020-10-15 | 2023-10-03 | Zebra Technologies Corporation | Lid subsystem for media processing devices |
| CN116278417B (en) * | 2023-02-01 | 2023-12-01 | 珠海芯烨电子科技有限公司 | Uncapping buffer structure |
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| JPH0363157A (en) * | 1989-08-01 | 1991-03-19 | Canon Inc | Openable cover and recorder using same |
| JP3419010B2 (en) * | 1993-01-25 | 2003-06-23 | セイコーエプソン株式会社 | Printer |
| JPH06294414A (en) * | 1993-04-02 | 1994-10-21 | Nhk Spring Co Ltd | Shaft locking device |
| JPH10252740A (en) * | 1997-03-10 | 1998-09-22 | Fuji Xerox Co Ltd | Opening closing cover brake mechanism |
| JPH11212428A (en) * | 1998-01-27 | 1999-08-06 | Ricoh Co Ltd | Image forming device |
| JP3753862B2 (en) * | 1998-03-26 | 2006-03-08 | 株式会社リコー | Image forming apparatus |
| JPH11309921A (en) * | 1998-04-28 | 1999-11-09 | Ricoh Elemex Corp | Buffer apparatus |
| JPH11354941A (en) * | 1998-06-10 | 1999-12-24 | Seiko Epson Corp | Electronic equipment |
| JP2000079739A (en) * | 1998-09-04 | 2000-03-21 | Canon Inc | Apparatus for locking opening cover and image-forming apparatus |
| JP3057929U (en) * | 1998-09-22 | 1999-06-08 | 日本タイプライター株式会社 | Cover opening and closing mechanism |
| JP2001019237A (en) * | 1999-07-09 | 2001-01-23 | Seiko Epson Corp | Printer |
| JP3800891B2 (en) * | 1999-10-29 | 2006-07-26 | スター精密株式会社 | Printer |
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| JP2002193293A (en) * | 2000-12-22 | 2002-07-10 | Toyota Motor Corp | Device for opening/closing cover body |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100493922C (en) * | 2007-02-07 | 2009-06-03 | 上海博施电子技术有限公司 | Pulling and lifting type storehouse opening device for the printer |
| CN106163818A (en) * | 2014-04-10 | 2016-11-23 | 佐藤控股株式会社 | Printer |
| CN109424631A (en) * | 2017-08-29 | 2019-03-05 | 加藤电机（香港）有限公司 | Device for opening and closing manuscript crimping plate and the business machine for having the device |
| CN109424631B (en) * | 2017-08-29 | 2021-04-30 | 加藤电机（香港）有限公司 | Manuscript pressing plate opening and closing device and office machine with same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4400175B2 (en) | 2010-01-20 |
| CN100361822C (en) | 2008-01-16 |
| JP2005133755A (en) | 2005-05-26 |
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