CN102336341B - Paper feeder and image forming device using same - Google Patents
Paper feeder and image forming device using same Download PDFInfo
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- CN102336341B CN102336341B CN201010239632.5A CN201010239632A CN102336341B CN 102336341 B CN102336341 B CN 102336341B CN 201010239632 A CN201010239632 A CN 201010239632A CN 102336341 B CN102336341 B CN 102336341B
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Abstract
The invention provides a paper feeder and an image forming device using the same. The paper feeder comprises a base, two side baffle plates arranged on the base and a width adjusting member, wherein the width adjusting member comprises an adjustable locking component and a fixed rack arranged on the base; the adjustable locking component comprises a control part, a rotary adjustable part and a gear, wherein the gear is engaged with the fixed rack; when the rotary adjustable part is controlled by the control part, the gear is in a second state of rotating in only one direction; and when the rotary adjustable part is not controlled by the control part, the gear is in a first state of rotating in two mutually opposite directions. Through the structure, locking of the two side baffle plates is realized when the two side baffle plates are continuously adjusted, so that gaps are not formed between the two sides of a piece of paper in the width direction and the side baffle plates, and the image forming quality is ensured. The invention also provides the image forming device provided with the paper feeder.
Description
Technical field
The present invention relates to a kind of paper feeder, more specifically, relate to a kind of paper feeder for image processing system and use its image processing system.
Background technology
In prior art, paper feeder in image processing system generally includes the base of bearing paper on it, and be arranged on this base, can be close to each other and away from two side shields, these two side shields are conditioned to adapt to the width that is positioned over the paper on base, thereby the paper that guarantees to be positioned on base can be not crooked or mobile on width.In traditional paper feeder, be provided with the engaging tooth bar with a plurality of teeth on one in two side shields, this engaging tooth bar is meshed with the corresponding stationary rack on base with setting, to realize the locking and unlocking of two side shields.
But, in the prior art, especially at image, forming field, above-mentioned stationary rack and engaging tooth bar all form by resin material.Further, the tooth bar forming by resin material at present, more than its tooth pitch generally all remains on 1mm, this is to determine due to mode and material behavior that resin material forms member.That is to say, therefore, when the structure being meshed by above-mentioned engaging tooth bar and stationary rack locks two side shields, the general Shi Yi2mmWei unit of adjusting of two side shields carries out, and be very easy in this case form gap between the inner surface of two side shields and paper, thereby cause the crooked and movement of paper on width, or make paper produce fold, affect the quality that image forms.
That is to say, in the prior art, due to the engaging structure between tooth bar and tooth bar, the paper that can cause being stacked on base produces crooked, mobile or fold on width, thereby causes the quality that image forms to decline.
Summary of the invention
The present invention proposes in order to overcome above defect just, an object of the present invention is to provide a kind of paper feeder, in this paper feeder, include improved structure, it can realize the locking to two side shields along being stacked in when regulating two side shields continuously on the width of the paper on base, thereby the both sides of paper on width not can and side shield between there is gap, also just guaranteed that paper can not produce crooked, mobile or fold on width, thereby guaranteed the quality that image forms.
According to an aspect of the present invention, provide a kind of sheet feed tray, comprising: for the base of stack paper; With two side shields that are arranged on this base, two side shields face with each other on the width of paper, and two side shields can be along the width of paper close to each other or away from; And width adjusting member, this width adjusting member comprises and is arranged in two side shields the adjustable locking parts on a side shield movably and is arranged at the stationary rack that the width along paper on base extends, adjustable locking parts comprise control part, rotation adjustabel part and gear, the stationary rack engagement on gear and base; Rotation adjustabel part while being controlled the control of portion, makes gear in the second state, and at the second state, gear only can rotate in one direction, makes two side shields can be close to each other and can not be away from; Rotation adjustabel part while not being controlled the control of portion, makes gear in the first state, and at the first state, gear can rotate on reciprocal both direction, make two side shields can be close to each other or away from.
By such structure, can realize the locking to two side shields 2 along being stacked in when regulating two side shields 2 continuously on the width of the paper on base, thereby the both sides of paper on width not can and side shield 2 between there is gap, also just guaranteed that paper can not produce crooked, mobile or fold on width, has guaranteed the quality that image forms.Further, by such structure, can prevent when the distance between two side shields 2 is after according to paper width, adjustment completes, due to other situations (for example: maloperation, or in paper transmitting procedure, paper is to giving the reverse resistance etc. of side shield 2) and cause two side shields 2 along the width of paper away from each other, make to have gap between the both sides of paper and side shield 2, thereby the quality that image is formed is brought impact.
Preferably, according in sheet feed tray provided by the invention, control part comprises Control Shaft, and an end of this Control Shaft has controlling organization; Gear is fixedly attached to rotation adjustabel part, so that can rotate along with the rotation of rotation adjustabel part gear coaxial line; Rotation adjustabel part has its center line centre bore consistent with axis, and controlling organization can enter/go out centre bore along center line movement; When the controlling organization of Control Shaft enters in the centre bore that rotates adjustabel part, rotation adjustabel part is controlled the control of portion, makes gear in the second state; When the controlling organization of Control Shaft out leaves this centre bore from centre bore, rotation adjustabel part is not controlled the control of portion, makes gear in the first state.
Preferably, according in sheet feed tray provided by the invention, rotation adjustabel part is needle-type unilateral bearing; The centre bore that the centre bore of rotation adjustabel part is unilateral bearing; Controlling organization is one section of shaft part of Control Shaft one end, and when the diameter of this shaft part is set as making to enter this centre bore in this shaft part, the outer surface of this shaft part contacts with the needle roller of unilateral bearing.
Preferably, according in sheet feed tray provided by the invention, controlling organization also comprise spring, the diameter that extends axially formation from the end face of shaft part along Control Shaft be less than shaft part diameter minor diameter and be positioned at the operating portion of the other end of Control Shaft; When shaft part is positioned at outside the centre bore of needle-type unilateral bearing, minor diameter is positioned at the centre bore of needle-type unilateral bearing, and the outer surface of this minor diameter does not contact with the needle roller of unilateral bearing; One end of spring is fixedly attached to movably on a side shield, and the other end is connected to the end face of minor diameter; When press operating part, make the elastic force of the minor diameter antagonistic spring of Control Shaft make shaft part enter the centre bore of unilateral bearing, thereby make gear in the second state; When the pressing of releasing operation portion, the elastic force effect that the minor diameter of Control Shaft is subject to spring makes shaft part out leave this centre bore from centre bore, thereby makes gear in the first state.
Preferably, according in sheet feed tray provided by the invention, the centre bore of needle-type unilateral bearing is circular hole, and shaft part has circular cross-section.
Preferably, according in sheet feed tray provided by the invention, gear has centre bore, and by the interior perimeter surface of this centre bore, is fixedly attached to the outer surface of unilateral bearing.
Preferably, according in sheet feed tray provided by the invention, the tooth of rack and pinion is involute profile.
Another object of the present invention is to provide a kind of image processing system that uses this paper feeder.
According to a further aspect in the invention, provide a kind of image processing system, it has paper feeder provided by the present invention.
Following according to the present invention disclosed object, effect, and structural configuration, enumerates preferred embodiment, and coordinates accompanying drawing to describe in detail.
Accompanying drawing explanation
Fig. 1 is the principle schematic of paper feeder according to an embodiment of the invention;
Fig. 2 is for to be arranged on the structural representation in image processing system according to the paper feeder of the first embodiment of the present invention;
Fig. 3 is according to the decomposing schematic representation of the paper feeder of the first embodiment of the present invention;
Fig. 4 is the decomposing schematic representation of paper feeder according to a second embodiment of the present invention.
The specific embodiment
1 to 4 the preferred embodiments of the present invention are described below with reference to accompanying drawings.
< the first embodiment >
As shown in Figures 1 to 3, paper feeder of the present invention comprises base 1, and this base 1 is for stack paper.Be arranged at two side shields 2 on this base 1, these two side shields 2 face with each other on the width (as the left and right directions in Fig. 1) of paper (as shown in the dotted line in Fig. 1), and two side shields 2 can along the width of paper relative to each other near or away from.Specifically, as illustrated in fig. 1 and 2, on two side shields 2, be respectively arranged with a tooth bar 21 extending along paper width direction, and these two tooth bars 21 are all meshed with the central gear 22 on base 1 with setting.When a side shield 2 in two side shields 2 is moved by push/pull, by the engagement between tooth bar 21 and central gear 22, drive 2 motions of another side shield, thus make these two side shields 2 can be simultaneously along the width of paper relative to each other near or away from.Width adjusting member 3, this width adjusting member 3 comprises and is arranged in two side shields 2 on a side shield movably the adjustable locking parts 3 on 2 (being arranged in the present embodiment, the side shield 2 in Fig. 1 left side) and is arranged at the stationary rack 4 that the width along paper on described base extends.Further, as shown in Figures 2 and 3, adjustable locking parts 3 comprise control part 31, rotation adjustabel part 32 and gear 33.Gear 33 meshes with the stationary rack 4 on base 1.When rotation adjustabel part 32 is controlled the control of portion 31, make gear 33 in the second state.Under the second state, gear 33 only can rotate in one direction, makes two side shields 2 can be close to each other and can not be away from.When rotation adjustabel part 32 is not controlled the control of portion 31, make gear 33 in the first state.Under the first state, gear 33 can rotate on reciprocal both direction, make two side shields 2 can be close to each other or away from.
By such structure, can realize the locking to two side shields 2 along being stacked in when regulating two side shields 2 continuously on the width of the paper on base, thereby the both sides of paper on width not can and side shield 2 between there is gap, also just guaranteed that paper can not produce crooked, mobile or fold on width, has guaranteed the quality that image forms.Further, by such structure, can prevent when the distance between two side shields 2 is after according to paper width, adjustment completes, due to other situations (for example: maloperation, or in paper transmitting procedure, paper is to giving the reverse resistance etc. of side shield 2) and cause two side shields 2 along the width of paper away from each other, make to have gap between the both sides of paper and side shield 2, thereby the quality that image is formed is brought impact.
Specifically, as shown in Fig. 2 to 3, in the first embodiment of the present invention, control part 31 comprises Control Shaft 313, and an end of this Control Shaft 313 has controlling organization 3131.Gear 33 is fixedly attached to rotation adjustabel part 32, so that can rotate along with the rotation of rotation adjustabel part 32 gear 33 coaxial lines.Further, this rotation adjustabel part 32 has its center line centre bore consistent with the axis of rotation adjustabel part 32, and controlling organization 3131 can enter/go out this centre bore along this center line movement.When the controlling organization 3131 of Control Shaft 313 enters in the centre bore that rotates adjustabel part 32, rotation adjustabel part 32 is controlled the control of portion 31, makes gear 33 in the second state.When the controlling organization 3131 of Control Shaft 313 out leaves this centre bore from rotating the centre bore of adjustabel part 32, rotation adjustabel part 32 is not controlled the control of portion 31, makes gear 33 in the first state.More specifically, in the first embodiment of the present invention, rotation adjustabel part 32 be needle-type unilateral bearing (particularly, this unilateral bearing can adopt " TOK BEARING (brand name) ", model is the needle-type unilateral bearing of TCM-613, and this unilateral bearing is formed by POM (polyformaldehyde) material and stainless steel needle roller).In the situation that adopting above-mentioned needle-type unilateral bearing, the centre bore that the centre bore of rotation adjustabel part 32 is unilateral bearing.Controlling organization 3131 is one section of shaft part of Control Shaft 313 1 ends, and when the diameter of this shaft part is set as making this shaft part to enter this centre bore along the center line movement of rotation adjustabel part 32, the outer surface of this shaft part contacts with the needle roller of unilateral bearing.By such structure, when the controlling organization 3131 of Control Shaft 313 (, while the shaft part of Control Shaft one end) not entering the centre bore of rotation adjustabel part 32, this not onset of unilateral bearing, now, unilateral bearing can rotate up two different sides, thereby makes gear in the first state.And when the shaft part 3131 of Control Shaft 313 enters the centre bore of rotation adjustabel part 32 (in the present embodiment, i.e. unilateral bearing), the outer surface of shaft part 3131 and the needle roller of unilateral bearing of Control Shaft 313 contact.Further, when the outer surface of shaft part 3131 of Control Shaft 313 and the needle roller of unilateral bearing contact, this unilateral bearing onset, now, unilateral bearing only can be along a direction rotation, thereby the gear 33 being fixedly attached on this unilateral bearing also only can be along a direction rotation.By such structure, when the shaft part 3131 of Control Shaft 313 enters rotation adjustabel part 32 (in the present embodiment, be unilateral bearing) centre bore time, the control that rotation adjustabel part (unilateral bearing) 32 is controlled portion 31 (, the outer surface of shaft part 3131 and the needle roller of unilateral bearing of Control Shaft 313 contact), make gear 33 in the second state, thereby make two side shields 2 can only be close to each other and can not be away from each other.That is, on the width along paper, lock to one direction two side shields, so that these two side shields can not be away from each other.
More specifically, in the first embodiment of the present invention, the centre bore of rotation adjustabel part 32 is circular hole, and the shaft part 3131 of control part 313 has circular cross-section.But the present invention is not limited to this, those skilled in the art can and use needs according to practical structures, select arbitrarily the cross sectional shape of this rotation centre bore of adjustabel part 32 and the controlling organization (shaft part) 3131 of control part 313, as long as this controlling organization 3131 can enter the centre bore of rotation adjustabel part 32.
There is structure as above, can control by thering are 31 pairs of the control parts rotation adjustabel parts 32 of simple structure, thereby can gear 33 can switched between the first state rotating on reciprocal both direction and second state that only can rotate in one direction by shirtsleeve operation.When according to distance between two side shields 2 of width adjusting of paper, user can select to make gear 33 in the second state, very close to each other to guarantee between the both sides of paper and two side shields, with the quality that guarantees that image forms, and can prevent from maloperation or have in the situation of external force making side shield 2 produce undesired displacement.Further, user can also select to make gear in the first state at an easy rate, thereby regulates arbitrarily the distance between two side shields according to the size of paper.
Further, as shown in Figure 3, in the paper feeder providing in first embodiment of the invention, control part 31 further comprises spring 314, from the end face of controlling organization (shaft part) 3131, is less than the minor diameter and the operating portion 311 that is positioned at the other end of Control Shaft 313 of the diameter of shaft part 3131 along the diameter that extends axially formation of Control Shaft 313.When shaft part 3131 is positioned at outside the centre bore of needle-type unilateral bearing 32, this minor diameter is positioned at the centre bore of unilateral bearing 32, and the outer surface of this minor diameter does not contact with the needle roller of unilateral bearing.In addition, one end of spring 314 is fixedly attached to movably on a side shield 2, and the other end is connected to the end face of minor diameter.When user's press operating part 311, make the elastic force of the minor diameter antagonistic spring 314 of Control Shaft 313 make shaft part 3131 enter the centre bore of unilateral bearing 32.By such structure, can the shaft part 3131 of Control Shaft 313 be entered in the centre bore of unilateral bearing 32 by shirtsleeve operation, thereby can control unilateral bearing 32, make gear 33 in the second state.Further, when not needing to make gear 33 in the second state, user only need to discharge pressing operating portion 311, the minor diameter of Control Shaft 313 just can be under the elastic force effect of spring 314, make shaft part 3131 out leave this centre bore from the centre bore of unilateral bearing 32, now, rotation adjustabel part 32 is not controlled the control of portion 31, makes gear 33 in the first state.In said structure, because end face and the spring 314 of minor diameter connects, and in the time of outside shaft part 3131 is positioned at the centre bore that rotates adjustabel part 32, this minor diameter is positioned at the centre bore of rotation adjustabel part 32, this just can make the shaft part 3131 that diameter is larger can easily enter in the centre bore of rotation adjustabel part 32, can not interfere with the end face of unilateral bearing 32 or other members generations around due to the skew of pressing force.
More specifically, in the present embodiment, the centre bore of needle-type unilateral bearing 32 is circular hole, and shaft part 3131 has circular cross-section.But the present invention is not limited to this, those skilled in the art can use and design needs according to actual, select arbitrarily the centre bore of this unilateral bearing 32 and the cross sectional shape of shaft part 3131, as long as shaft part 3131 can insert the centre bore of unilateral bearing 32, and the outer surface of shaft part 3131 and the needle roller of unilateral bearing are contacted.
In addition, in the first embodiment of the present invention, gear 33 has centre bore, and by the interior perimeter surface of this centre bore, is fixedly attached to the outer surface of unilateral bearing 32.But the present invention is not limited to this, those skilled in the art can be easy to expect, gear 33 can adopt other forms to be fixedly attached to unilateral bearing 32, for example, one side of this gear 33 is fixedly attached on a side surface of unilateral bearing 32, gear 33 as long as make gear 33 coaxial lines, is fixedly attached to unilateral bearing 32, so that can rotate along with the rotation of unilateral bearing 32.
More specifically, the first embodiment of the present invention also proposes to have the operation part of retaining mechanism, as shown in Figure 3, the operating sleeve 312 that there is manhole comprising the column operating grip 311 as operating portion, center and spring 314, and an end of the close operating grip 311 of Control Shaft 313 is cylindrical, on the outer surface at Control Shaft 313 near an end of operating grip 311, be formed with each interval, evenly distributed on the circumferencial direction of this end, along axially extended a plurality of strip Control Shaft projections 3132 of this end.Operating grip 311 is formed with the continuous zigzag handle projection 3111 of extending along its neighboring near one end of Control Shaft 313, that the interior perimeter surface of the manhole of operating sleeve 312 is formed with is a plurality of each intervals, evenly distributed on the circumferencial direction of manhole, along axially extended a plurality of strip sleeves projections (not shown) of manhole.Wherein, the number of sleeve projection is more than or equal to the number of handle projection 3111, and in a plurality of sleeve projection, adjacent two sleeve projections interval is in a circumferential direction greater than each Control Shaft projection 3132 width in a circumferential direction.One end of the close operating grip 311 of each Control Shaft projection 3132 is all formed with the inclined-plane suitable with handle projection 3111.And one end of the close Control Shaft 313 of each sleeve projection is all formed with the inclined-plane suitable with Control Shaft projection 3132.Spring 314 is arranged in the centre bore of rotation adjustabel part 32, one end of spring 314 is fixedly attached to movably on a side shield 2, the other end and Control Shaft 313 connect away from one end of operating grip 311, connect with the end face of the minor diameter of Control Shaft 313.More specifically, as shown in Figure 3, in the present embodiment, operating grip 311, operating sleeve 312, Control Shaft 313, spring 314 are arranged in order with such order.By such structure, user presses operating grip 311, the handle projection 3111 of one end of this operating grip 311 and the inclined-plane of Control Shaft projection 3132 one end of Control Shaft 313 are contacted, and the elastic force that overcomes together spring 314 is along the axially-movable of the centre bore of rotation adjustabel part 32 (that is, along the downward direction in Fig. 3).Meanwhile, the handle of one end of the inclined-plane of one end of this Control Shaft projection 3132 and handle 311 projection 3111 is suitable, so that an angle of Control Shaft 313 rotations.Further, continue to press operating grip 311, Control Shaft 313 continues to move downward, until the respective ramp of the inclined-plane of one end of the Control Shaft projection 3132 of Control Shaft 313 and sleeve projection one end is adaptive.Unclamp operation handle 311, the inclined-plane of one end of the Control Shaft projection 3132 of this Control Shaft 313 is resisted against on the inclined-plane of sleeve projection one end under the effect of spring 314, and this Control Shaft 313 can not moved upward.Now, the controlling organization 3131 of Control Shaft 313 enters in the centre bore of rotation adjustabel part 32, so that these rotation adjustabel part (unilateral bearing) 32 onsets, thereby makes gear 33 in the second state that only can single direction rotation.At this moment, two side shields 2 only can move along direction close to each other.
Further, in order to remove the inclined-plane of one end of Control Shaft projection 3132 and the butt on the inclined-plane of sleeve projection one end of Control Shaft 313, so that first state of gear in rotating on reciprocal both direction.User presses operating grip 311, the handle projection 3111 of one end of this operating grip 311 and the inclined-plane of Control Shaft projection 3132 one end of Control Shaft 313 are contacted, and the elastic force that overcomes together spring 314 along the axially-movable of the centre bore of rotation adjustabel part 32 (, along the downward direction in Fig. 3), thus the inclined-plane of the inclined-plane of one end of Control Shaft projection 3132 and sleeve projection one end disengages.Meanwhile, the handle of one end of the inclined-plane of one end of this Control Shaft projection 3132 and handle 311 projection 3111 is suitable, so that an angle of Control Shaft 313 rotations.Unclamp operation handle 311, Control Shaft 313 under the effect of spring 314 along rotation adjustabel part 32 centre hole axis to doing exercises (, along the upward direction in Fig. 3), and Control Shaft projection 3132 enters between two adjacent sleeve projections interval in a circumferential direction.Like this, the controlling organization of Control Shaft 313 leaves the centre bore of rotation adjustabel part 32, thereby makes first state of gear 33 in can in two directions rotating.At this moment, two side shields 2 can along close to each other/away from direction move.
Be exactly more than illustrating first embodiment of the invention, the paper feeder providing according to first embodiment of the invention, can to the adjustable locking parts that are arranged on side shield of paper feeder, control by simple structure, thereby realize the locking to two side shields 2 when can regulate two side shields 2 continuously at the width along being stacked in the paper on base, so that the both sides of paper on width not can and side shield 2 between there is gap, guaranteed that paper can not produce on width crooked, move or fold, thereby guaranteed the quality that image forms.Further, by such structure, can prevent when the distance between two side shields 2 is after according to paper width, adjustment completes, due to other situations (for example: maloperation, or in paper transmitting procedure, paper is to giving the reverse resistance etc. of side shield 2) and cause two side shields 2 along the width of paper raw material each other, make to have gap between 2 of paper and side shields, thereby the quality that image is formed is brought impact.
In addition, in the above embodiment of the present invention, Control Shaft can comprise having shaft part that diameter is larger (, controlling organization) and the two-part multidiameter structure of minor diameter, this minor diameter than the more close rotation adjustabel part of the larger shaft part of diameter (, and when the larger shaft part of diameter is not positioned at the centre bore of unilateral bearing, this minor diameter is positioned at the centre bore of unilateral bearing unilateral bearing).Further, the external diameter of the shaft part that diameter is larger is Φ a, and the external diameter of minor diameter is Φ b, and the centre bore internal diameter of unilateral bearing is Φ c.Inventor learns through overtesting, when the external diameter of the larger shaft part of diameter, the relation between the external diameter of minor diameter and the centre bore internal diameter of rotation adjustabel part while meeting following the relation, the shaft part that diameter is larger can successfully enter the centre bore of unilateral bearing, and can guarantee that the outer surface of the shaft part that this diameter is larger and the needle roller of unilateral bearing contact; Further, can guarantee when minor diameter is positioned at the centre bore of unilateral bearing can not contact with the needle roller of unilateral bearing, thereby guarantee that above-described embodiment can obtain preferably effect:
Φc-Φa＜＝0.05mm；Φc-Φb＞＝0.3mm。
< the second embodiment >
Below with reference to 4 pairs of second embodiment of the invention of rear accompanying drawing, describe, structure similar with the first embodiment in this second embodiment has adopted identical or similar numbering, and has omitted explaining to them.To only this second embodiment part different from the first embodiment be explained below.
As shown in Figure 4, the part that the second embodiment of the present invention is different from the first embodiment is to rotate the concrete structure of adjustabel part.In the second embodiment of the present invention, rotation adjustabel part 52 is spring coil clutch, and this spring coil clutch comprises: power shaft 521, output shaft 522, spring 523 and sleeve 524.Output shaft 522 and power shaft 521 are connected to each other by being clasped, so that output shaft 522 can rotate relatively with power shaft 521.Sleeve 524 is linked on spring 523.One end of spring 523 is fixedly attached on power shaft 521, and the other end of spring 523 is fixedly attached on sleeve 524.The coil sections of spring 523 is wrapped in an end (that is, the upper end in Fig. 4) of the close power shaft 521 of output shaft 522; Gear 33 has centre bore, and the interior perimeter surface of this centre bore is fixedly attached to the end away from power shaft 521 (that is, the bottom in Fig. 4) of the output shaft 522 of spring coil clutch.In the present embodiment, the centre bore of rotation adjustabel part 52 is formed in the hole at power shaft 521 centers of spring coil clutch.When the controlling organization of Control Shaft 513 enters the centre bore (that is, the centre bore of power shaft 521) of rotation adjustabel part, Control Shaft 513 can not rotate relatively with power shaft 521.
More specifically, in the present embodiment, as shown in Figure 4, the centre bore of rotation adjustabel part 52 is D shape hole, and the controlling organization of Control Shaft 513 is the shaft part with D tee section.By such structure, when the controlling organization of Control Shaft 513 enters the centre bore of rotation adjustabel part 52, Control Shaft 513 can not rotate relatively with power shaft 521.But the present invention is not limited to this, those skilled in the art can be according to actual design and use needs, select arbitrarily the cross sectional shape of this rotation centre bore of adjustabel part and the controlling organization of Control Shaft 513, as long as when the controlling organization of this Control Shaft 513 can enter the centre bore of rotation adjustabel part, Control Shaft 513 can not rotate relatively with power shaft 521.
More specifically, in the present embodiment, Control Shaft 513 also has along the extending axially of controlling organization, from the outwardly direction protrusion 5131 of the outer surface of Control Shaft 513, when the controlling organization of Control Shaft 513 enters the centre bore of rotation adjustabel part 52, this direction protrusion 5131 enters guiding recess (not shown) suitable on base 1.By such structure, when the controlling organization of Control Shaft 513 enters the centre bore of rotation adjustabel part 52, this direction protrusion 5131 enters the guiding recess on fixing base 1, thereby Control Shaft 513 can not be rotated with respect to base 1, and further make the power shaft 521 of spring coil clutch not rotate with respect to base 1.Propose in the present embodiment to use above-mentioned direction protrusion 5131, but the present invention is not limited to this, those skilled in the art can use and design and need to select arbitrarily similar structures according to actual, for example can on the outer surface of Control Shaft 513, form a plurality of direction protrusions, or form groove on the outer surface of Control Shaft 513, and on base 1, form corresponding projection etc., as long as can make Control Shaft 513 when controlling organization enters the centre bore of rotation adjustabel part 52, Control Shaft 513 can not be with respect to base 1 rotation.
There is said structure, because Control Shaft 513 is provided with direction protrusion 5131, this Control Shaft 513 can only be moved along the bearing of trend (that is, the above-below direction in Fig. 4) of direction protrusion 5131, and can not rotate with respect to base 1.Thereby, when Control Shaft 513 moves downward, when the controlling organization of Control Shaft 513 (shaft part) enters in the centre bore of power shaft 521 of spring coil clutch, because Control Shaft 513 can only move along above-below direction, cause the power shaft 521 of spring coil clutch to rotate, thereby the one end that is fixedly attached to the spring 523 on power shaft 521 is also fixed, and can not rotate.Further, the other end of spring 523 is fixedly attached on sleeve 524, and this sleeve 524 can rotate around power shaft 521, thereby the other end of this spring 523 can rotate with respect to base 1.Further, due to the coil sections of spring 523 be wrapped in output shaft 522 close power shaft 521 an end (, upper end in Fig. 4) on, and gear 33 be fixedly attached to spring coil clutch output shaft 522 the end away from power shaft 521 (, bottom in Fig. 4), thereby work as output shaft 522 along a direction (, while the clockwise direction while seeing from power shaft 521 1 sides in Fig. 4) rotating, spring 523 can tighten up, thereby locking output shaft 522, output shaft 522 is stoped by spring 523 along the rotation of this direction.And work as output shaft 522 along the rightabout with this direction (, while the counter clockwise direction while seeing from power shaft 521 1 sides in Fig. 4) rotating, spring 523 can loosen, thereby between the inner surface of the appropriate section of the outer surface of output shaft 522 and spring 523, have gap, thereby this output shaft 522 can rotate freely along this direction.There is such structure, user can control by 513 pairs of rotation adjustabel parts of Control Shaft, so that second state of the gear 33 that is fixedly attached to output shaft 522 in only rotating in one direction, to obtain the technique effect identical with above-mentioned the first embodiment.
In the foregoing description, with reference to accompanying drawing, the structure of the first and second preferred embodiments of the present invention is specifically described, but this is not restriction of the present invention.To those skilled in the art, can above-described embodiment be carried out various modification or improvement and do not departed from the scope of the present invention.
For example, in above-described embodiment, used the structure with operating grip, operating sleeve and spring to realize the control of control part to rotation adjustabel part.But the present invention is not limited to this, in order to realize the control of control part to rotation adjustabel part, those skilled in the art are easy to expect utilizing other structures to realize this function.For example, user can arrange class as the fit structure between spring leaf and groove between control part and rotation adjustabel part, to realize the control of control part to rotation adjustabel part; Or, for example, in the periphery of the member (, Control Shaft) of control part, form external screw thread, and at the centre bore of rotation adjustabel part, form the helicitic texture of internal thread; Or form the bevelled stage portion of tool and in the upper end of Control Shaft, be formed with along the inclined-plane engaging structure of the bevelled stage portion of tool of inclined etc. various structure as the operating grip lower end of above-described embodiment in class.To sum up, the control part proposing in the present invention can adopt the various conventional technological means in this area to realize to the control of rotation adjustabel part, and is not limited in the ad hoc structure proposing in the above embodiment of the present invention.
Further, in the above embodiment of the present invention, proposed to use unilateral bearing or spring coil clutch as the instantiation that rotates adjustabel part, but the present invention is not limited to this, those skilled in the art can, according to design and use requirement, select arbitrarily or use various structures to rotate adjustabel part as this.For example, can adopt this rotation adjustabel part of ratchet mechanism effect, specifically, in the centre bore of gear, week is formed with the internal tooth along the circumferential direction extending towards a side, and at control part, be provided with the ratchet that can mesh with this internal tooth, by such structure, when rotation adjustabel part need to make gear in the second state, the position of the ratchet of control panel in meshing with the internal tooth of gear, under such state, gear is when the bearing of trend of this internal tooth rotates, the internal tooth of gear and the ratchet of control part engagement and locked, thereby gear can not be along this direction rotation, further, when gear is during towards opposite spin, ratchet can not enter between the internal tooth of gear, thereby gear can be along this opposite spin.In addition, can also use structures such as the electromagnetic clutch with position-limit mechanism, stop, or class is set on the sidewall of gear as little ratchet or unilateral bearing etc. similar structures.As long as can make control part to rotation adjustabel part while controlling gear under only can the second state of single direction rotation.
More than preferred embodiment of the present invention and accompanying drawing, only have preferred embodiment and accompanying drawing to be illustrated, not for limiting the interest field of the technology of the present invention, all interest fields of take identical technological means or being contained as following claim content are implemented, and all do not depart from category of the present invention but applicant's interest field.
Claims (8)
1. a sheet feed tray, comprising
Base for stack paper; With
Be arranged at two side shields on this base, described two side shields face with each other on the width of paper, and described two side shields can be along the width of described paper close to each other or away from; And
Width adjusting member, this width adjusting member comprises and is arranged in described two side shields the adjustable locking parts on a side shield movably and is arranged at the stationary rack that the width along described paper on described base extends, it is characterized in that,
Described adjustable locking parts comprise control part, rotation adjustabel part and gear, the stationary rack engagement on described gear and described base; When described rotation adjustabel part is subject to the control of described control part, make described gear in the second state, at described the second state, described gear only can rotate in one direction, makes described two side shields can be close to each other and can not be away from; When described rotation adjustabel part is not subject to the control of described control part, make described gear in the first state, at described the first state, described gear can rotate on reciprocal both direction, make described two side shields can be close to each other or away from.
2. sheet feed tray as claimed in claim 1, is characterized in that, described control part comprises Control Shaft, and an end of this Control Shaft has controlling organization; Described gear is fixedly attached to described rotation adjustabel part, so that can rotate along with the rotation of described rotation adjustabel part described gear coaxial line; Described rotation adjustabel part has its center line centre bore consistent with described axis, and described controlling organization can enter/go out described centre bore along described center line movement;
When the controlling organization of described Control Shaft enters in the centre bore of described rotation adjustabel part, described rotation adjustabel part is subject to the control of described control part, makes described gear in the second state; When the controlling organization of described Control Shaft out leaves this centre bore from described centre bore, described rotation adjustabel part is not subject to the control of described control part, makes described gear in the first state.
3. sheet feed tray as claimed in claim 2, is characterized in that, described rotation adjustabel part is needle-type unilateral bearing; The centre bore of described rotation adjustabel part is the centre bore of described unilateral bearing; Described controlling organization is one section of shaft part of described Control Shaft one end, and when the diameter of this shaft part is set as making to enter this centre bore in this shaft part, the outer surface of this shaft part contacts with the needle roller of described unilateral bearing.
4. sheet feed tray as claimed in claim 3, it is characterized in that, described controlling organization also comprise spring, the diameter that extends axially formation from the end face of described shaft part along described Control Shaft be less than described shaft part diameter minor diameter and be positioned at the operating portion of the other end of described Control Shaft; When described shaft part is positioned at outside the centre bore of described needle-type unilateral bearing, described minor diameter is positioned at the centre bore of described needle-type unilateral bearing, and the outer surface of this minor diameter does not contact with the needle roller of described unilateral bearing; Described in one end of described spring is fixedly attached to, movably on a side shield, the other end is connected to the end face of described minor diameter; When pressing described operating portion, the elastic force that makes the minor diameter of described Control Shaft resist described spring makes described shaft part enter the centre bore of described unilateral bearing, thereby makes described gear in the second state; When discharging the pressing of described operating portion, the elastic force effect that the minor diameter of described Control Shaft is subject to described spring makes described shaft part out leave this centre bore from described centre bore, thereby makes described gear in the first state.
5. sheet feed tray as claimed in claim 3, is characterized in that, the centre bore of described needle-type unilateral bearing is circular hole, and described shaft part has circular cross-section.
6. sheet feed tray as claimed in claim 5, is characterized in that, described gear has centre bore, and by the interior perimeter surface of this centre bore, is fixedly attached to the outer surface of described unilateral bearing.
7. the sheet feed tray as described in any one in claim 1 to 6, is characterized in that, the tooth of described tooth bar and described gear is involute profile.
8. an image processing system, it has the sheet feed tray as described in any one in claim 1 to 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010239632.5A CN102336341B (en) | 2010-07-21 | 2010-07-21 | Paper feeder and image forming device using same |
| JP2011158846A JP5782891B2 (en) | 2010-07-21 | 2011-07-20 | Paper feeding device and image forming apparatus using the paper feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010239632.5A CN102336341B (en) | 2010-07-21 | 2010-07-21 | Paper feeder and image forming device using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102336341A CN102336341A (en) | 2012-02-01 |
| CN102336341B true CN102336341B (en) | 2014-04-02 |
Family
ID=45512358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010239632.5A Expired - Fee Related CN102336341B (en) | 2010-07-21 | 2010-07-21 | Paper feeder and image forming device using same |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5782891B2 (en) |
| CN (1) | CN102336341B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5850580B2 (en) * | 2013-08-22 | 2016-02-03 | 京セラドキュメントソリューションズ株式会社 | Sheet stacking unit, sheet conveying apparatus, and image forming apparatus including the same |
| CN104708911B (en) * | 2013-12-16 | 2017-04-12 | 山东新北洋信息技术股份有限公司 | Card width adjustment mechanism and card printer with same |
| JP6296337B2 (en) * | 2014-03-14 | 2018-03-20 | 株式会社リコー | Sheet placement device and image forming apparatus |
| TWI556981B (en) * | 2014-06-05 | 2016-11-11 | 虹光精密工業股份有限公司 | Stacking tray device |
| CN104934154A (en) * | 2015-06-24 | 2015-09-23 | 无锡锡洲电磁线有限公司 | U-shaped lining paper adding device for copper strap wire |
| CN104934142B (en) * | 2015-06-24 | 2017-03-22 | 无锡锡洲电磁线有限公司 | Lining paper sampling device for cable core production of electromagnetic wire |
| CN105947724B (en) * | 2016-06-23 | 2017-11-28 | 珠海恒全条码设备有限公司 | Media width position-limit mechanism |
| CN106980881B (en) * | 2017-05-10 | 2024-02-13 | 长城信息股份有限公司 | Limiting mechanism |
| CN110713034B (en) | 2018-07-13 | 2021-06-18 | 株式会社理光 | Sheet holding device, sheet feeding device, and image forming apparatus |
| CN111845074B (en) * | 2020-08-04 | 2021-07-16 | 常州市双鹤医用包装科技有限公司 | Code spraying printing machine |
| CN114834804B (en) * | 2021-02-01 | 2024-04-26 | 江苏迅捷装具科技有限公司 | Dynamic medicine storage device of vertical intelligent pharmacy |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4907792A (en) * | 1987-10-23 | 1990-03-13 | Iwatsu Electric Company, Ltd. | Sheet guide adjusting apparatus |
| CN1200986A (en) * | 1997-05-30 | 1998-12-09 | 三菱电机株式会社 | Serial heat recording device |
| US6116591A (en) * | 1998-04-01 | 2000-09-12 | Samsung Electronics Co., Ltd. | Paper supply tray of printer |
| JP2007204241A (en) * | 2006-02-03 | 2007-08-16 | Ricoh Printing Systems Ltd | Paper feeding tray |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2807632B2 (en) * | 1994-05-30 | 1998-10-08 | 佐伯金属株式会社 | Shaft rotation prevention mechanism and flag hoisting device using this rotation prevention mechanism |
| JP5004718B2 (en) * | 2007-04-12 | 2012-08-22 | キヤノン株式会社 | Sheet feeding apparatus and image forming apparatus |
| JP2009078905A (en) * | 2007-09-27 | 2009-04-16 | Kyocera Mita Corp | Transfer paper conveying device |
-
2010
- 2010-07-21 CN CN201010239632.5A patent/CN102336341B/en not_active Expired - Fee Related
-
2011
- 2011-07-20 JP JP2011158846A patent/JP5782891B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4907792A (en) * | 1987-10-23 | 1990-03-13 | Iwatsu Electric Company, Ltd. | Sheet guide adjusting apparatus |
| CN1200986A (en) * | 1997-05-30 | 1998-12-09 | 三菱电机株式会社 | Serial heat recording device |
| US6116591A (en) * | 1998-04-01 | 2000-09-12 | Samsung Electronics Co., Ltd. | Paper supply tray of printer |
| JP2007204241A (en) * | 2006-02-03 | 2007-08-16 | Ricoh Printing Systems Ltd | Paper feeding tray |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102336341A (en) | 2012-02-01 |
| JP2012025590A (en) | 2012-02-09 |
| JP5782891B2 (en) | 2015-09-24 |
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Granted publication date: 20140402 Termination date: 20200721 |