JPS58188243A - Copying material sheet feeder - Google Patents

Abstract

PURPOSE:To selectively accommodate a copying material throughout a wide range from large size to small size, by connecting long and narrow supporting elements in a chain state in a forward direction of the copying material to form a supporting member holding the copying material. CONSTITUTION:A supporting member 16 receiving a copying material is formed such that long and narrow supporting elements 17 are connected in a chain state in the axial direction along a feed direction of the copying material to a picture recorder main unit. In case of changing a distance between position limiting members 11, 12 in accordance with size of the copying material, the member 12 is slided to a prescribed position while pressing a lock lever 20 in the direction of an arrow head against reaction force by a spring 21, then the chain state elements 17 are unlocked and the member 12 pulls one end of the element to roll out the elements 17 from a rotary shaft 19. If the member 12 is set to a prescribed position to reset the lever 20, the element 17 is again locked. In this way, the copying material is loaded on the member 16.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a copying material sheet feeding device used in an image recording device such as a copying machine, and more particularly to a copying material sheet feeding device that can feed various copying material sheets of different sizes. Regarding the sending device.

As is known, the copy material sheet feeding device feeds the copy material sheet (
The storage means has a storage means for loading copy materials (hereinafter referred to as copy materials), and a feeding means for feeding out the copy materials one by one, and the storage means maintains its course tq in the feeding direction of the copy materials, It usually has a position regulating member that regulates the position of the subject in a direction perpendicular to the feeding direction (width direction). And there is a product I! between the position regulating members! It has a support member (usually a plate) that supports the copy material. It is configured so that it can be displaced (pushed upward) in accordance with the decrease in the loaded violet.

In other words, the supporting member can be raised and lowered by means of a spring or the like in the case of a cassette-type feeding device #LK, or by a suitable elevator hand Re in the case of an r-type feeding device.

By the way, since there are various sizes of copying materials used in image recording devices, there are various sizes of copying materials used in these different sizes.
It is essential to be able to process many copy materials using the same feeding device, and in conventional devices, for example, the supporting member can be divided into two in one direction to make it possible to widen the width. The configuration is provided. 11. An example of this is shown in a plan view. In FIG. 1, (a) shows the state expanded to the maximum width. 1) shows the state before widening. In the figure, the position of the copy material is M
The position regulating members 1 and 2 each have a known separating means 3, so-called separating claws, for feeding out the copying material one sheet at a time. Further, a support member 4 (ie, 5 and 8) is provided which is located between the position regulating members 1 and 2 and supports the copying material. FIG. 2 shows the support member 4 taken along the line AA in FIG. 1.

In FIGS. 1 and 2, as can be understood, the support member 4 is configured to be slidable on the base 5 while being guided by the support surface 6 and the guide rail 7, which is integrally formed with the base plate 5. When the position regulating member 2 is moved to set the spacing according to the size of the copy material to be used, the receiver is made up of a surface 8 in conjunction with the position regulating member 2. Kvk is configured so that it slides on the substrate 5 and is set at a predetermined position.

However, the conventional feeding device described above has several problems. First, there is a problem with the flatness of the surface of the receiver that supports the copying material. In other words, as can be seen from Figures 1 and 2, since the receiver wIJ5.8 that comes into contact with the copying material is of a stepped sliding type, the same plane is formed only when #i is set to the minimum width. When the width is widened, the flatness of the surface of the receiver that comes into contact with the copying material is lost. FIG. 3 shows this state.

As shown in FIG. 3, the copy material B is stored with the receiver having lost its flatness along the surfaces 6, 5.8. On the other hand, IliII
On the main body side of the gI recording device, a plurality of rows 291 to 291 are placed on top of the copy material 8 to feed and withdraw the copy material S from above.
94 (the feeding means may be of a type that sucks and feeds with a nozzle) is disposed and is configured to rotate and stop at a predetermined timing. However, if the flatness of the uppermost surface of the copy material BID is disrupted, the contact with the loaves 91 to 94 will not be uniform throughout. As a result, copy material S
The roller 2 (9 m in the case) located in the concave portion of
It will float away from photo material 8. As a result, the balance of the force for feeding the photographic material 5t-S is lost, which causes the copying material to skew or jam, resulting in a problem of lowering the reliability of the feeding device.

Another problem with the conventional device is that, as can be seen from its configuration, the area in which the support member 4 can be widened is limited. That is, as can be seen structurally, the ratio of the maximum width to the minimum width was at most 2. In order to increase this ratio by more than 2, it is conceivable to configure the supporting member 4 into three parts, but increasing the number of parts is worse from the viewpoint of obtaining the flatness of the surface of the support. It is the direction.

In view of these points, the present gAFi was developed with the aim of solving the above problems. In other words, it is an object of the present invention to provide a feeding device that can accommodate a wide range of copying materials, from large-sized copying materials to small-sized copying shrines, and in which the flatness of the supporting member that receives the copying material is maintained sufficiently regardless of the size of the copying material. Furthermore, it is an object of the present invention to provide a reliable feeding device.

The gist of the present invention is that a large number of narrow members extending in the direction of the feeding force of the copying material sheet are connected in the width direction with continuous buttons, and the copy material sheet is unwound and unwound from the same portion. a support member for making it possible to vary the width of a flat surface on which material sheets are stacked; a pair of position I61 regulating members disposed on each side of the sheet in the width direction to determine the width position of the sales sheet; and a sheet on the support member. A transfer sheet feeding device I is characterized in that it has a feeding device for feeding out a transfer sheet.

Hereinafter, the embodiment of the present invention will be explained based on FIG. 4 and subsequent drawings.

FIG. In the figure, the m-regulating member 11Fi made of a soft body is fixed to a base (not shown). Also, the other position is complementary to this.

The regulating member 12 is provided so as to be movable in the direction of the arrow K (the width direction of the copy material) with respect to the base. A known separating claw 13 is provided on each of the position regulating members 11 and 12. Further, a fork portion 15, which is a part of a known elevator means that can be raised and lowered by being guided by a support column 14 extending in the vertical direction, is provided in the other position regulating member 12 at the nine notches 1.
It penetrates through 2a and extends to the vicinity of the position regulating member 11. A support member 16 is held by the fork portion 15 and positioned between the position regulating members 11 and 12. #The fork portion 15 is controlled to rise in accordance with the amount of reduction in the copy material due to feeding so that the uppermost surface of the copy material loaded on the support member 16 always maintains a predetermined height;
When all copy materials have been fed, the fork portion 15
The fork is lowered to its lowest position, and the operation of these forks may be controlled by known means.

Further, when the fork portion 15 is lowered to the lowest position and is in good condition, the support member 16 is configured such that its both ends are connected by the position regulating members 11 and 12 (FJI stopper locking). For this purpose, for example, an appropriate means such as a combination of a pin and a hole, or a hook-shaped portion that engages with the recesses and recesses as shown in FIGS. 5 and 6 may be used.

Next, the specific structure of the support member 16 described above is described. This is a structure in which the image recording device of the copying material (the wrinkled body) is connected in a chain in one direction (@distribution direction is 11). .

The chain-shaped supports 16Fi are connected for a sufficiently long time in the ring direction, and one end in the width direction is placed in instant contact with the position regulating member 11 on the fixed side, and is guided into the storage case 18. and is wound around a rotating shaft 19 disposed in the wrinkle storage case 18.

The rotating shaft 19 is always biased by a biasing means (not shown), such as a torsion coil spring, so as to cause the chain-shaped support pieces 17 to be wound into the housing portion 18 .

Note that the other end of the chain of the support member 16, that is, the end of the bean paste that is unwound to the outside from the storage case 18 so as to form the plane in which the subject is placed, is the other moving side described above. The supporting member 16 may be connected to the position regulating member 12 in a vertical position, but in this case, the support member 16 must be provided so as to be slidable in the vertical direction with respect to the position regulating member 12 as the fork 15 moves up and down.

Furthermore, since the front support member 16 is biased by a spring force in the winding direction due to the rotation N19 inside the housing case 18, it is necessary to lock it at a predetermined position. Reference numeral 20 indicates a lock lever for this purpose, which will be explained with reference to FIG.

FIG. 5 Fi shows a partial cross-section of the support member 16. As is clear from the figure, the lock lever 20 is rotatable about the lever shaft 20&, and the swing end 20 is rotated by the spring force of the lock spring 21.
The chain support member 16 is clamped and fixed between the housing case 18 and the housing case 18.

Therefore, in the total state, the chain-like support piece 17 is locked by the lock lever 20, and the portion protruding from the storage case 18 is equal to the winding force of the rotating shaft 19.
I haven't received the order. Depending on the size of copying material used ^
1j heavy position regulating member ll.

When the interval between 12 and 12 is 4 times, in this embodiment, the support member 16 is at the lowest position due to the descent of 7 orcs.
Only K is possible. That is, only at this time, as shown in the circle described above, both ends of the supporting member 16 are locked into position with the position regulating members 11 and 11, respectively, and are in a good state.

Here, while pushing the lock lever 2o in the direction of the arrow against the reaction force exerted by the spring 21, press the position regulating plate 12 to the O position tM.
When the chain-shaped support piece 17 is slid in the housing, the lock is released, so one end of the chain-shaped support piece 17 is moved to the corresponding position [regulating member 12
The shaft is pulled by the rotary shaft 19 and unwound from the rotary shaft 19. Set the cough position regulating member 12 to a predetermined position and release the lock lever.
When 2o is returned, the sales support piece 17 is restrained and locked.

In this way, the copying material is placed horizontally on top of the enemy support member 16, and after death,
When the shear elevator means is operated by an appropriate means, the fork portion 15 rises until the top surface of the copying material reaches a predetermined height and then stops. Figure @6 shows this state.

In this state, the restraint of the shell support member 16 by the position regulating members 11 and 12 is released, but the portion of the support piece 17 protruding from the storage case 18 is locked by the lock lever 20. It is no longer affected by the winding force ◆. In this state, as shown in FIG. 6, the feeding roller 23 having a plurality of rollers 22 is used! llll The objects are fed sequentially from above.

According to the apparatus of the present invention having the above configuration, as shown in the figure, in order to maintain the flatness of the support member 16 that supports the copying material 8, the uppermost surface of the copying material and the plurality of rollers 22 are connected to each other. The contact state is uniform, the balance of the feeding force is not disrupted, and the feeding device has high scratch resistance.Furthermore, the flatness of the support member 16 is independent of the set size of the copying material. Sufficient flatness is always maintained at all sizes.

The above explanation is for the case where the present invention is applied to a deck type feeding device, but the present invention is also applicable to the case of a cassette type INK, and FIG. *Example shown. FIG. 7 is a perspective view showing a partially broken cassette according to the present invention. In the figure, a regulating member 31 is fixed to one end of a box 30. The position regulation members 31 and 32 are each provided with a known separating claw 33.The position regulation member 32 also has a guide member 34 at the 32m and 32b portions. and is configured to be able to be displaced in the direction of the arrow in the figure, that is, in the direction of 0 m (copy material seat).Then, the connection-like support pieces 37 and sales support pieces of the fJM regulating members 31 and 32 are fitted in the same direction. A support member 36 having a storage case 38 for storing a copy material sheet 37 is disposed.
Til the lJ1 side in the above position using a collar 735, etc.
It is locked to the itMA control members 31 and 32. Then, at the other end, that is, the separating claw 33@, by fitting both sides thereof, for example, with the collar and 39, into the guide grooves 31@@, 32@ provided in the position regulating member 31.32. The position regulating member 31. is pivotable about the above-mentioned I35.
It is locked at 32. The shell support member 36 is urged upward by a coil spring (not shown) or the like. The supporting member 36 is displaced in accordance with the decrease in the amount of the loaded copy material sheet due to feeding of the copy material sheet placed in this manner, and the uppermost surface of the copy material sheet is always maintained at a predetermined level.

When changing the distance between the position regulating members 31 and 32 according to the size of the subject to be used, press the lock lever 40 to displace the position regulating member 32 to a predetermined position. Afterwards, the lock lever 40 may be returned to its original position.

In the above embodiment, an example was shown in which one of the position regulating members is fixed and the other is variable, but it goes without saying that both may be variable.

Furthermore, as the chain-like support piece 17 of the above-mentioned support member 16, a plate-like member having slit-like cuts as shown in FIG. 8 can also be used.

FIG. 8 is a partially enlarged view showing the end surface of the plate-like member 47. In FIG.
b) shows a curved surface with a round shape m.

As is clear from the figure, the plate member 47 has a plurality of slit-like cuts 47b with a slight thickness 47m remaining in the thickness direction. Therefore, when the plate-shaped S material 47 is taken out from the storage case 18 or 38, it forms a flat surface, and when it is rolled into the storage case 18 or 38, it forms a curved surface. As the material of the corrugated plate-like member 47, for example, a plastic material such as fI2 pyrene can be used.

As described in detail above, in the feeding device according to the present invention, the support member for holding the copy material sheet (copy material) is composed of 41 long and thin support pieces connected in the traveling direction of the copy material sheet. As a result, it is possible to selectively accommodate a wide range of copying material sheets, from large ones to small ones, and the flatness of the supporting member is always maintained. It is possible to provide an extremely reliable feeding device with excellent feeding performance, and its usefulness is great.

[Brief explanation of the drawing]

Drawing #I1-) e (b) to Fig. 3 show the conventional example of the feeding carriage, and Fig. 1 6) is a plan view when the width is widened. 1(a) and 6(b) show the flattening factor when the width is reduced, FIG. 2(a) is a sectional view taken along line A-Ais in FIG. 1(a), and FIG. 3(s) is a front view in the paper feeding state. Figures 4 to 6 show a feeding device according to the present invention! Figure 4 is a partial perspective view, Figure 5 is a sectional view showing the state in which the chain support member is housed in the storage case, and Figure 6 is the front view when the paper is being fed. It is a diagram. FIG. 7 shows an example in which the present invention is applied to a cassette system,
FIG. 7 is a perspective view including some parts, and FIG. 8(a). (b) is a partially enlarged view showing another example of the plate-like body. l, 2: Position regulating member 3: Separation claw 4: Support member 5: Substrate 6.8: Receiver is surface 7:, f-id rail 91 to 94
: Roller 10: Feed row 211.12: Position regulating member 121: Notch 13: Separation claw 14: Post 15: Fork part (7 oak) 16: Support member 19 knee rotation axis 20: Lock lever 20a knee per shaft 20b: Swinging end 21: Lock thread ring 22: Roller 23: Feed roller 30: Shaft 31.32: Position regulating member 31., 32.: Guide groove 33: Separation claw 34: Guide member 35: /&
36: Support member 37: Chain support member 38
:Accommodation case 39:〆#40:Rockre/
4-47: Plate member 47a: Meat 47b: Cut). Figure 1 Figure 2 Figure City 3 Figure Atsushi 4

Claims (1)

[Claims] A large number of narrow members extending in the feeding direction of the copy material sheet are connected in a chain in the width direction, and the width of the plane on which the copy material sheet is stacked is controlled by unwinding and unwinding from the winding section. a support member configured to be variable in speed; a pair of position regulating members disposed on each side of the sheet in the width direction to determine the width position of the mosquito sheet;