CN112965352A

CN112965352A - Sheet storage device and image forming apparatus

Info

Publication number: CN112965352A
Application number: CN202110143897.3A
Authority: CN
Inventors: 李荣华
Original assignee: Zhuhai Pantum Electronics Co Ltd
Current assignee: Zhuhai Pantum Electronics Co Ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-06-15
Anticipated expiration: 2041-02-02
Also published as: CN112965352B

Abstract

The invention provides a paper storage device and an image forming device, and relates to the technical field of imaging. Wherein the paper storage device includes: the paper storage device comprises a paper storage body, a tail limiting piece, a buffering part and an extending part; the buffer part is arranged on the paper storage body, the extension part is positioned in the extending direction of the buffer part to the paper storage body and is rotatably arranged on the paper storage body, and the tail limiting part is arranged on the buffer part and the extension part in a sliding way; the image forming apparatus includes an apparatus body and a paper storage device. When the extension part needs to be operated, the tail limiting part slides to the buffering part, an operator can operate the extension part with one hand to turn over, the extension part is located on the inner side or the outer side of the paper storage body, the extension part which needs two hands of the operator to operate the paper storage device in the prior art is abandoned, the operation difficulty of the operator is reduced, and the operation convenience of the paper storage device is improved.

Description

Sheet storage device and image forming apparatus

Technical Field

The present invention relates to the field of imaging technologies, and in particular, to a paper storage device and an image forming apparatus.

Background

Copiers, printers, and facsimile machines are used in a wide range of applications in people's life and work as common office equipment. A sheet storage device is provided in a copying machine, a printer, and a facsimile machine to supply sheets to an image forming apparatus and form an image on the sheets.

In the prior art, a sheet storage device includes a sheet storage body. The paper storage body is provided with an extension tray, a tail limiting piece, a side limiting piece and a locking mechanism. The extension tray is slidably inserted on the paper storage body, and slides towards the direction close to the paper storage body when small paper is stored; when large sheets are stored, the extension tray slides in a direction away from the sheet storage body. The extension tray and the paper storage body are provided with elastic locking mechanisms, and the locking mechanisms are used for clamping and connecting the extension tray and the paper storage body. A slidable tail limiting piece is arranged on the extension tray and used for limiting the position of the tail of the paper. The paper storage body is further provided with side limiting pieces, and the side limiting pieces are used for limiting the positions of two sides of the paper.

However, in the paper storage device in the prior art, when the extension tray is slid, the locking mechanism needs to be operated, and the extension tray is pulled to slide on the paper storage body, so that the operation is inconvenient.

Disclosure of Invention

The invention provides a paper storage device and an image forming device, which aim to solve the problem that when a paper storage device in the prior art slides an extension disc, a locking mechanism needs to be operated while the extension disc is pulled to slide on a paper storage body, so that the operation is inconvenient.

In one aspect, the present invention provides a paper storage device comprising: the paper storage device comprises a paper storage body, a tail limiting piece, a buffering part and an extending part;

a storage space for accommodating paper is configured on the paper storage body;

the buffer part is arranged on the paper storage body, and the extension part is positioned in the extending direction of the buffer part to the paper storage body and is rotatably arranged on the paper storage body;

the tail restricting member is slidably mounted on the buffer portion and the extending portion, and the extending portion is turnable to an outside of the sheet storing body when the tail restricting member is slid onto the buffer portion.

Optionally, the extension portion includes an extension portion body and an articulated shaft, the articulated shaft is fixedly connected to the extension portion body, a slot for placing the extension portion body is formed in the paper storage body, and a mounting hole for rotation of the articulated shaft is formed in the slot.

Optionally, a first surface and a second surface which are arranged oppositely are arranged on the extension body, when the extension body rotates to the outer side of the paper storage body along the mounting hole and is parallel to the buffer portion, the first surface is located on one side of the extension body, which is far away from the paper, and the second surface is located on one side of the extension body, which faces the paper.

Optionally, the tail restriction member includes a moving seat and a restriction plate, the restriction plate being rotatably mounted on the moving seat, the moving seat being slidably disposed between the sheet storage body and the extension portion body;

the first surface and the second surface of the extension part body are provided with first limiting grooves used for being clamped with the limiting plate.

Optionally, a second limiting groove is arranged on the paper storage body at a position opposite to the clamping groove.

Optionally, the paper storage device further comprises a movable part, the movable part is located in the clamping groove, an elastic piece is arranged between the movable part and the paper storage body, and when the extension part is turned to the outer side of the paper storage body, the movable part can be moved to be flush with the buffer part.

Optionally, the movable portion includes a movable portion body, a guide groove is provided on the clamping groove, and a guide protrusion corresponding to the guide groove is provided on the movable portion body.

Optionally, the movable part body includes top surface, bottom surface and preceding terminal surface, the bottom surface of movable part body is provided with spacing arch, spacing arch protrusion in preceding terminal surface, the guide way extends along the vertical direction, spacing arch with when the bottom surface butt of buffer the top surface of movable part body with the top surface coplane of buffer.

Optionally, the movable part body includes top surface and preceding terminal surface, be provided with spacing arch on the preceding terminal surface of movable part body, the buffer portion is close to the one end of movable part body is provided with the third spacing groove, the guide way is to being close to the one side slope of buffer portion, spacing arch with when the third spacing groove looks block the top surface of movable part body with the top surface coplane of buffer portion.

In another aspect, the present invention provides a sheet storing device including a sheet storing body and a tail restriction member;

the paper storage body is provided with a buffer part and an extension part which extend along the paper feeding direction, and the tail limiting part can slide on the buffer part and the extension part;

the extension part is rotatably arranged on the paper storage body, when the extension part rotates to a first position, the extension part is close to the paper storage body, and the tail limiting part can slide on a first surface of the extension part; when the extension portion rotates to the second position, the extension portion is far away from the paper storage body, and the tail limiting member can slide on a second surface, opposite to the first surface, of the extension portion.

Optionally, the tail limiting member comprises a moving seat and a limiting plate, the limiting plate is rotatably fixed on the moving seat, and the moving seat is slidably arranged between the paper storage body and the extending portion; the first surface and the second surface of the extension part are provided with first limiting grooves used for being clamped with the tail limiting part.

In still another aspect, the present invention provides an image forming apparatus including an apparatus body and the above-described sheet storage device;

an image forming device is provided on the apparatus main body, and the paper storage device is used for supplying paper to the image forming device.

The invention provides a paper storage device and an image forming apparatus, comprising: the paper storage device comprises a paper storage body, a tail limiting piece, a buffering part and an extending part; a storage space for accommodating paper is configured on the paper storage body; the buffer part is arranged on the paper storage body, the extending part is positioned in the extending direction of the buffer part to the paper storage body and is rotatably arranged on the paper storage body, the tail limiting part is arranged on the buffer part and the extending part in a sliding mode, and when the tail limiting part slides to the buffer part, the extending part can turn to the outer side of the paper storage body. When the extension part needs to be operated, the tail limiting part slides to the buffering part, an operator can operate the extension part with one hand to turn over, the extension part is located on the inner side or the outer side of the paper storage body, the extension part which needs two hands of the operator to operate the paper storage device in the prior art is abandoned, the operation difficulty of the operator is reduced, and the operation convenience of the paper storage device is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a paper storage device according to the present invention;

FIG. 2 is a view of the paper storage device of FIG. 1 with the extension portion open;

figure 3a is a schematic view of a first side of an extension provided by the present invention;

FIG. 3b is a schematic view of a second side of the extension provided by the present invention;

FIG. 4 is a schematic view of a portion of the paper storage body of the paper storage device of FIG. 1;

FIG. 5 is a schematic view of the movable portion of the paper storage device of FIG. 1;

FIG. 6 is a schematic view of the engagement of the extension and movable portion of the paper storage device of FIG. 1;

FIG. 7 is a schematic view of the paper storage device of FIG. 1 during an open position of the extension;

FIG. 8 is a schematic view of the paper storage device of FIG. 1 with the extension portion open;

FIG. 9 is an enlarged view of the structure at A in FIG. 8;

FIG. 10 is a schematic view of another alternative paper storage device according to the present invention;

FIG. 11 is a view of the paper storage device of FIG. 10 with the extension portion open;

fig. 12 is a schematic structural diagram of an image forming apparatus provided by the present invention.

Description of reference numerals:

1-a paper storage device; 10-a paper storage body; 101-a first runner; 102-a second runner;

11-a card slot; 111-a first inner wall; 112-a second inner wall; 113-a third inner wall;

12-a second limit groove; 13-a guide groove; 14-mounting holes; 15-fixing grooves;

20-a tail restraint; 21-a movable seat; 22-a limiting plate; 23-a rotating shaft;

30-a buffer; 31-a third limiting groove; 32-a fourth limit groove; 40-an extension;

41-an elongated body; 42-articulated shaft; 411-first side; 412-a second face;

413-a first limit groove; 414-fixed protrusions; 50-a movable part; 51-a movable part body;

511-top surface; 512-bottom surface; 513-front end face; 514-rear end face;

515-left surface; 516-right surface; 52-a guide projection; 53-limit protrusions;

54-a fifth limiting groove; 60-an elastic member; 2-a sheet feeding device; 201-a paper pick-up mechanism;

202-a conveying mechanism; 3-an imaging device; 301-a process cartridge; 302-a laser scanner;

303-a transfer roller; 4-a fixing device; 5-a paper discharge device; 6-control device.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description above, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Copiers, printers, and facsimile machines are used in a wide range of applications in people's life and work as common office equipment. A sheet storage device is provided in a copying machine, a printer, and a facsimile machine to supply sheets to an image forming apparatus and form an image on the sheets. In the prior art, a sheet storage device includes a sheet storage body. The paper storage body is provided with an extension tray, a tail limiting piece, a side limiting piece and a locking mechanism. The extension tray is slidably inserted on the paper storage body, and slides towards the direction close to the paper storage body when small paper is stored; when large sheets are stored, the extension tray slides in a direction away from the sheet storage body. The extension tray and the paper storage body are provided with elastic locking mechanisms, and the locking mechanisms are used for clamping and connecting the extension tray and the paper storage body. A slidable tail limiting piece is arranged on the extension tray and used for limiting the position of the tail of the paper. The paper storage body is further provided with side limiting pieces, and the side limiting pieces are used for limiting the positions of two sides of the paper. However, in the paper storage device in the prior art, when the extension tray is slid, the locking mechanism needs to be operated, and the extension tray is pulled to slide on the paper storage body, so that the operation is inconvenient.

In order to solve the above problems, the present invention provides a paper storage device and an image forming apparatus, when an extension portion needs to be operated, a tail restriction member is slid onto a buffer portion, and an operator can operate the extension portion to turn over with one hand, so that the extension portion is located inside or outside a paper storage body, thereby eliminating the need for two hands of the operator to operate the extension portion of the paper storage device in the prior art, thereby reducing the operation difficulty of the operator, and further improving the operation convenience of the paper storage device.

The following describes the paper storage device and the image forming apparatus provided by the present invention in detail with reference to specific embodiments.

The first embodiment is as follows:

FIG. 1 is a schematic structural diagram of a paper storage device according to the present invention; FIG. 2 is a view of the paper storage device of FIG. 1 with the extension portion open; figure 3a is a schematic view of a first side of an extension provided by the present invention; FIG. 3b is a schematic view of a second side of the extension provided by the present invention; FIG. 4 is a schematic view of a portion of the paper storage body of the paper storage device of FIG. 1; fig. 5 is a schematic structural view of a movable portion of the paper storage device of fig. 1.

As shown in fig. 1 to 5, the present invention provides a sheet storing apparatus 1 including: a sheet storage body 10, a tail restriction member 20, a buffer portion 30, and an extension portion 40; a storage space for accommodating sheets is arranged on the sheet storage body 10; the buffer part 30 is arranged on the paper storage body 10, and the extension part 40 is positioned in the extending direction of the buffer part 30 to the paper storage body 10 and is rotatably arranged on the paper storage body 10; the tail restriction member 20 is slidably mounted on the buffer portion 30 and the extension portion 40, and when the tail restriction member 20 is slid onto the buffer portion 30, the extension portion 40 can be flipped to the outside of the sheet storage body 10.

Wherein the sheet storage device 1 is provided at a lower portion of the image forming apparatus. The sheet storing body 10 is integrally formed in a box-shaped structure opened upward. Both sides of the sheet storage body 10 are provided with side restricting members for restricting the positions of both sides of the sheets. The side limiting member and the paper storage body may be formed integrally or may be welded, and are not specifically provided herein.

The extension portion 40 is located in the direction in which the buffer portion 30 extends toward the sheet storage body 10, that is, the extension portion 40 is located upstream of the buffer portion 30 in the sheet conveying direction.

The buffer section 30 is provided with a pocket 11 for placing the extension section 40 at an upstream position in the sheet conveying direction. The hinged position of the extension 40 and the slot 11 is required to allow the extension 40 to be flipped outside the paper storage body 10 to allow the paper storage device to store larger sheets of paper.

In an alternative embodiment, the extension 40 includes an extension body 41 and a hinge shaft 42, the hinge shaft 42 is fixedly connected to the extension body 41, and the slot 11 is provided with a mounting hole 14 for rotating the hinge shaft 42.

The extension body 41 is provided with a first surface 411 and a second surface 412 which are oppositely arranged, when the extension body 41 rotates to the outside of the paper storage body 10 along the mounting hole and is parallel to the buffer part 30, the first surface 411 is located on the side of the extension body 41, which faces away from the paper, and the second surface 412 is located on the side of the extension body 41, which faces towards the paper.

The extension body 41 has a plate-like structure as a whole. In order to enable the extension body 41 to be turned to the inner side of the paper storage body 10 and be flush with the buffer portion 30, the free end of the extension body 41 is provided with an oblique angle, the slot 11 is provided with an oblique angle matched with the oblique angle of the extension body 41, the oblique angle of the extension body 41 is abutted with the oblique angle of the slot 11, the extension body 41 can be fixed in the slot 11, and the extension body 41 is flush with the buffer portion 30.

The extension portion body 41 may be partially turned to the outside of the paper storage body 10, or may be entirely turned to the outside of the paper storage body 10, and is not specifically provided here. Preferably, in order to store larger paper in the paper storage device, the hinge shaft 42 is fixedly connected to one end of the extension body 41, and the mounting hole 14 of the slot 11 is disposed at one end near the tail of the paper storage body.

The tail limiting member 20 includes a moving seat 21 and a limiting plate 22, the limiting plate 22 is rotatably fixed on the moving seat 21, the moving seat 21 is slidably disposed between the paper storage body 10 and the extension portion body 41, and the lower end of the limiting plate 22 can be engaged with the first limiting groove 413 of the extension portion 40 and the fourth limiting groove 32 of the buffer portion 30, so as to limit the sliding of the moving seat 21. Specifically, the bottom of the moving seat 21 is provided with a protrusion, and the paper storage body 10 and the extension body 41 are provided with a first sliding chute 101 and a second sliding chute 102 corresponding to the protrusion; the limiting plate 22 is mounted on the movable base 21 through the rotating shaft 23, and when the movable base 21 moves, the limiting plate 22 is rotated so that the lower end of the limiting plate 22 leaves the first limiting groove 413 or the fourth limiting groove 32, and the sliding of the movable base 21 is not limited, so that the operator can further operate the limiting plate 22 to move along the first sliding slot 101 or the second sliding slot 102 together with the movable base 21, and when the movable base 21 moves to a certain position, the limiting plate 22 is fixed on the paper storage device through the rotation limiting plate 22.

When the extension portion body 41 is turned inside the paper storage body 10, the movable seat 21 slides in the first slide groove 101 of the paper storage body 10 and the second slide groove 102 of the extension portion body 41; when the extension body 41 is turned to the outside of the paper storage body 10, the movable base 21 slides in the second slide groove 102 of the extension body 41 located on the outside portion of the paper storage body 10.

It is also noted that the tail restriction member 20 slides over the cushioning portion 30 and the extension portion 40, and the tail restriction member 20 serves to restrict the tail of the sheet.

The first surface 411 and the second surface 412 of the extension body 41 are provided with a first limit groove 413 for engaging with the limit plate 22. The first limiting groove 413 may be formed with a tooth structure. In other implementations, the first limiting groove 413 may be formed by other structures, and is not specifically configured here.

The buffer portion 30 has a plate-like structure as a whole. The buffer portion 30 is provided with a fourth stopper groove 32 that engages with the stopper plate 22. The fourth limiting groove 32 may be formed by a tooth structure. In other implementations, the fourth limiting groove 32 may be formed by other structures, and is not specifically configured here.

Note that the buffer portion 30 may be integrally connected to the paper storage body 10 by welding. In other implementations, the buffering portion 30 may be integrally formed with the paper storage body 10, and is not specifically configured here.

When the extension part 40 needs to be operated, the tail limiting part 20 slides to the buffer part 30, an operator can operate the extension part 40 to turn over by one hand, so that the extension part 40 is positioned on the inner side or the outer side of the paper storage body 10, the extension part which needs two hands of the operator to operate the paper storage device in the prior art is abandoned, the operation difficulty of the operator is reduced, and the operation convenience of the paper storage device is improved.

FIG. 6 is a schematic view of the engagement of the extension and movable portion of the paper storage device of FIG. 1; FIG. 7 is a schematic view of the paper storage device of FIG. 1 during an open position of the extension; FIG. 8 is a schematic view of the paper storage device of FIG. 1 with the extension portion open; fig. 9 is an enlarged schematic view of a portion a in fig. 8.

Alternatively, as shown in fig. 6 to 9, the paper storage device further includes a movable portion 50, the movable portion 50 is located in the slot 11, an elastic member 60 is disposed between the movable portion 50 and the paper storage body 10, and when the extension portion 40 is turned to the outside of the paper storage body 10, the movable portion 50 can be moved to be flush with the buffer portion 30.

The movable portion 50 includes a movable portion body 51, the inner wall of the card slot 11 is provided with a guide groove 13, and the movable portion body 51 is provided with a guide protrusion 52 corresponding to the guide groove 13.

The shape of the guide projection 52 is circular, square, etc., and is not specifically provided here.

The elastic member 60 may be a spring, or may be other elastic structures, and is not specifically configured here.

In an alternative embodiment, the slot 11 includes a first inner wall 111, a second inner wall 112, and a third inner wall 113, and the first inner wall 111, the second inner wall 112, and the third inner wall 113 are all provided with a guide groove 13. The movable part body 51 includes a top surface 511, a bottom surface 512, a front end surface 513, a rear end surface 514, a left surface 515, and a right surface 516.

The left surface 515 and the right surface 516 of the movable section body 51 are each provided with a guide projection 52. The number of the guide projections 52 is determined according to the actual situation. For example, two guide projections 52 are provided on each of the left surface 515 and the right surface 516 of the movable section body 51.

In order to limit the upward movement of the movable portion main body 51, a limit protrusion 53 is provided on the front end surface 513 of the movable portion main body 51, and a third limit groove 31 is provided at one end of the buffer portion 30 close to the movable portion main body 51. In order to allow the stopper projection 53 to be caught in the third stopper groove 31 when the movable portion body 51 moves upward, the guide groove 13 is inclined to a side close to the buffer portion 30, that is, the guide groove 13 is inclined to the paper feeding direction, so that the stopper projection 53 can be guided to be caught in the third stopper groove 31, and at this time, the top surface of the movable portion body 51 is coplanar with the top surface of the buffer portion 30.

The third limiting groove 31 may be a notch at one end of the buffer 30 close to the movable portion body 51.

The movable portion main body 51 is provided with a fifth stopper groove 54 to be engaged with the stopper plate 22. The fifth limiting groove 54 may be formed of a tooth structure. In other implementations, the fifth limiting groove 54 may be formed by other structures, and is not specifically configured here.

As shown in fig. 7, the operation process of turning the extension portion 40 to the outside of the paper storage body 10 is: moving the tail restraint 20 to the cushioning portion 30, the extension 40 is able to rotate about its hinge axis 42 within the pocket 11 and away from the sheet storage body 10. The movable portion 50 is lifted up by the elastic member 60, and the movable portion 50 moves in the paper feeding direction while moving upward by the cooperation of the guide projection 52, the stopper projection 53, and the guide groove 13. During the rotation of the extension portion 40, the end of the movable portion 50 away from the extension portion 40 has a large upward movement amount due to the loss of the pressing force of the extension portion 40, and the end of the movable portion 50 close to the extension portion 40 has a small upward movement amount due to the failure of the pressing force of the extension portion 40. When the extension portion 40 is further turned outward, the extension portion 40 is completely separated from the movable portion 50, the movable portion 50 is not pressed, the movable portion 50 can be completely lifted to a position flush with the buffer portion 30, and the operator operates the tail stopper 20 to release the lock of the stopper plate 22, so that the tail stopper 20 can smoothly slide on the buffer portion 30, the extension portion 40, and the movable portion 50.

Similarly, as shown in fig. 8, the operation process of turning the extension portion 40 to the inside of the paper storage body 10 is as follows: the end restriction member 20 is moved to the buffering portion 30, and then the extension portion 40 is turned over, and the extension portion 40 presses the end of the movable portion 50 close to the hinge shaft 42 to tilt the movable portion 50. When the extension portion 40 is further turned, the movable portion 50 is moved downward against the elastic force of the elastic member 60 and is moved in the direction opposite to the sheet feeding direction by the cooperation of the guide projection 52 and the guide groove 13, so that the stopper projection 53 is disengaged from the third stopper groove 31 at the end of the movable portion 50 away from the hinge shaft 42. When the extension portion 40 continues to turn over to be adjacent to the movable portion 50, the stopper projection 53 is completely disengaged from the third stopper groove 31, and the movable portion 50 is almost pressed to the lowest position.

The extension body 41 is provided with a fixing protrusion 414, the engaging groove 11 is provided with a fixing groove 15, and the fixing protrusion 414 is engaged with the fixing groove 15, so that the movable portion 50 is prevented from being pushed out by the elastic member 60, and the stability of the movable portion 50 can be maintained.

In another alternative embodiment, the card slot 11 includes a first inner wall 111, a second inner wall 112, and a third inner wall 113, and the first inner wall 111, the second inner wall 112, and the third inner wall 113 are all provided with a guide slot 13. The movable part body 51 comprises a top surface, a bottom surface, a front end surface, a rear end surface, a left surface and a right surface, the bottom surface of the movable part body 51 is provided with a limiting protrusion, the limiting protrusion protrudes out of the front end surface, the guide groove 13 extends along the vertical direction, and the top surface of the movable part body 51 is coplanar with the top surface of the buffer part 30 when the limiting protrusion abuts against the bottom surface of the buffer part 30.

FIG. 10 is a schematic view of another alternative paper storage device according to the present invention; fig. 11 is a view showing an extended portion of the sheet storage device in fig. 10 in an opened state.

Alternatively, as shown in fig. 10 to 11, when the extension portion body 41 is turned to the outside of the paper storage body 10, in order that the tail restriction member 20 may be fixed when moving to the slot 11, a second restriction groove 12 is provided on the paper storage body 10 at a position opposite to the slot 11. The second limiting groove 12 may be formed by a tooth structure. In other implementations, the second limiting groove 12 may be formed by other structures, and is not specifically configured here.

Example two:

as shown in the drawings, the present invention provides a sheet storing device including a sheet storing body 10 and a tail restriction member 20; the paper storage body 10 is provided with a buffer part 30 and an extension part 40 extending along the paper feeding direction, and the tail limiting piece 20 can slide on the buffer part 30 and the extension part 40; the extension portion 40 is rotatably mounted on the paper storage body 10, when the extension portion 40 rotates to the first position, the extension portion 40 approaches the paper storage body 10, and the tail limiting member 20 can slide on the first surface 411 of the extension portion 40; when the extension portion 40 rotates to the second position, the extension portion 40 is away from the paper storage body 10, and the tail restriction member 20 can slide on a second surface 412 of the extension portion 40 opposite to the first surface 411.

The first position is the position where the extension part 40 is turned to the inner side of the paper storage body 10 and is flush with the buffer part 30; the second position is a position where the extension portion 40 is turned to the outside of the sheet storage body 10 and is flush with the buffer portion 30.

The structure of the paper storage device provided in the second embodiment is the same as that of the paper storage device in the first embodiment, and can bring about the same or similar technical effects, which are not described in detail herein.

Alternatively, the tail restriction member 20 includes a moving seat 21 and a restriction plate 22, the restriction plate 22 is rotatably fixed on the moving seat 21, and the moving seat 21 is slidably disposed between the paper storage body 10 and the extension portion 40; the first surface 411 and the second surface 412 of the extension portion 40 are provided with first stopper grooves 413 for engaging with the tail stoppers 20.

As shown in fig. 12, the present invention also provides an image forming apparatus including an apparatus body and a paper storage device 1; an image forming apparatus 3 is provided on the apparatus main body, and a sheet storage device is used to supply sheets to the image forming apparatus.

The structure of the paper storage device of the image forming apparatus provided by the invention is the same as that of the paper storage device, and the paper storage device can bring the same or similar technical effects, and is not described in detail herein.

The apparatus body includes a sheet feeding device 2, an image forming device 3, a fixing device 4, a sheet discharging device 5, and a control device 6, and sheets are recording media such as blank paper, synthetic resin sheets, and cardboard on which toner images are formed on the image forming apparatus.

The sheet feeding apparatus 2 includes a sheet pickup mechanism 201 for picking up sheets from the sheet storage apparatus 1 to the sheet pickup mechanism 201, and a conveying mechanism 202 for conveying the sheets to the image forming apparatus 3, the fixing device 4, and the sheet discharging device 5 in this order through a sheet conveying path.

The image forming apparatus 2 includes a process cartridge 301, a laser scanner 302, a transfer roller 303 for converting a digital image into a toner image and transferring the toner image onto a sheet of paper. The process cartridge 301 can be freely detached from or attached to the inside of the image forming apparatus. Other components in the process cartridge 301, such as the photosensitive drum, the developing roller, the charging roller, the toner discharging blade, and the cleaning blade, are conventional structures, not shown in the drawings.

The fixing device 4 comprises a fixing roller and a pressure roller, a nip is formed between the fixing roller and the pressure roller under the action of elastic pressure, the fixing roller can be heated to a certain temperature, when paper carrying the toner image is conveyed into the fixing device 4, the paper enters the nip, the toner image is fixed on the paper under the action of high temperature and high pressure, the paper enters the paper discharging device 5, and a user can take the paper from the paper discharging device 5.

The above-described feeding, image forming, fixing, and sheet discharging operations for the sheet are cooperatively performed under the control of the control device 6, and the control device 6 learns the operation of each device module through a plurality of sensors provided inside the image forming apparatus to cooperatively control and take measures against an abnormal situation existing inside the image forming apparatus.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A paper storage device, comprising: the paper storage device comprises a paper storage body, a tail limiting piece, a buffering part and an extending part;

2. The paper storage device of claim 1, wherein the extension includes an extension body and a hinge shaft, the hinge shaft is fixedly coupled to the extension body, the paper storage body defines a slot for receiving the extension body, and the slot defines a mounting hole for rotation of the hinge shaft.

3. The paper storage device of claim 2 wherein the extension body has a first surface and a second surface opposite to each other, the first surface being located on a side of the extension body facing away from the paper and the second surface being located on a side of the extension body facing the paper when the extension body is rotated along the mounting hole to an outside of the paper storage body and parallel to the buffer portion.

4. The paper storage device of claim 3 wherein the tail restraint includes a movable seat and a restraint plate rotatably mounted on the movable seat, the movable seat being slidably disposed between the paper storage body and the extension body;

5. The paper storage device according to any one of claims 2 to 4, wherein a second stopper groove is provided on the paper storage body at a position opposite to the card slot.

6. The paper storage device according to any one of claims 2 to 4, further comprising a movable portion, wherein the movable portion is located in the slot, an elastic member is provided between the movable portion and the paper storage body, and when the extension portion is turned to the outside of the paper storage body, the movable portion is movable to be flush with the buffer portion.

7. The paper storage device of claim 6 wherein the movable portion includes a movable portion body, the slot having a guide slot, the movable portion body having a guide projection corresponding to the guide slot.

8. The paper storage device of claim 7 wherein the movable portion body includes a top surface, a bottom surface and a front end surface, the bottom surface of the movable portion body is provided with a limiting protrusion protruding from the front end surface, the guide groove extends in the vertical direction, and the top surface of the movable portion body is coplanar with the top surface of the buffer portion when the limiting protrusion abuts against the bottom surface of the buffer portion.

9. The paper storage device of claim 7 wherein the movable portion body includes a top surface and a front surface, the front surface of the movable portion body is provided with a stop protrusion, the buffer portion is provided with a third stop groove at an end thereof adjacent to the movable portion body, the guide groove is inclined toward a side adjacent to the buffer portion, and the top surface of the movable portion body is coplanar with the top surface of the buffer portion when the stop protrusion engages with the third stop groove.

10. A sheet storing device is characterized by comprising a sheet storing body and a tail limiting member;

11. The paper storage device of claim 10 wherein the tail restriction member includes a movable seat and a restriction plate rotatably fixed to the movable seat, the movable seat being slidably disposed between the paper storage body and the extension portion; the first surface and the second surface of the extension part are provided with first limiting grooves used for being clamped with the tail limiting part.

12. An image forming apparatus characterized by comprising an apparatus body and the sheet storing device according to any one of claims 1 to 9;