JP2013227121A - Medium container, image forming device, and image reading device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce variation of a force to operate a member for aligning media.SOLUTION: A medium container (TRt) includes: aligning members (36, 37) in contact with an edge of a medium (S) to align the media; moving members (16, 17) for supporting the aligning members (36, 37) and movably supported by a housing part (1); guide sections (8, 11) for guiding the moving members (16, 17) along a direction approaching/separating from the medium (S); and a contact member (26) provided in the moving members (16, 17) and coming in contact with the guide sections (8, 11), and comprising elastically deformable first elastic parts (29, 31) extending in a direction approaching the edge of the medium (S), and elastically deformable second elastic parts (27, 28) extending in a direction separating from the edge of the medium (S), the elastic parts (27-31) being elastically deformed to push the guide sections (8, 11) for maintaining the position of a moving body (43).

Description

  The present invention relates to a medium container, an image forming apparatus, and an image reading apparatus.

  A conventional image forming apparatus is provided with a storage container for storing a medium on which an image is recorded. Further, a conventional image reading apparatus is provided with a storage container for storing a medium serving as a document. Regarding the medium container, the technique described in Patent Document 1 below is conventionally known.

  Japanese Patent Application Laid-Open No. 2011-16624 as Patent Document 1 describes a configuration in which side guides (16, 17) for adding the width direction of a sheet (S) are provided in a manual feed tray (TRt). In the side guide (16, 17) of Patent Document 1, a leaf spring portion (18d) is formed on the rack (18, 21). The leaf spring portion (18d) is formed in a unified shape in the same direction with respect to the movement direction of the rack (18, 21). The leaf spring portion (18d) is in contact with the rack guides (4, 11) and exerts an elastic force. Therefore, the position of the side guides (16, 17) is held by the elastic force of the leaf spring portion (18d).

JP2011-16624 ("0043", FIG. 3)

  An object of the present invention is to reduce variation in force for operating members that align media.

In order to solve the technical problem, the medium container of the invention according to claim 1 comprises:
A storage section for storing a medium;
A movable body that is disposed in the housing and is movable in a direction approaching and separating from an edge of the medium, the aligning member contacting the edge of the medium and aligning the medium; and A moving member supported and movably supported in the housing part; and
A guide portion provided in the housing portion and guiding the moving member along a direction approaching and separating from an edge of the medium;
A contact member provided on the moving member and in contact with the guide portion, the first elastic portion being elastically deformable extending in a direction approaching the edge of the medium, and extending in a direction away from the edge of the medium. A second elastic part that can be elastically deformed, and each of the elastic parts is elastically deformed to push the guide part to hold the position of the moving body,
It is provided with.

The invention according to claim 2 is the container for the medium according to claim 1,
A first moving body movable in a direction approaching and separating from one side edge of the medium, and a second moving body movable in a direction approaching and separating from the other side edge of the medium; The moving body comprising:
A first meshing portion provided on a moving member of the first moving body;
A second meshing portion provided on a moving member of the second moving body;
A gear that meshes with the first meshing portion and the second meshing portion and is rotatable.
It is provided with.

The invention according to claim 3 is the container for the medium according to claim 1 or 2,
The contact member arranged on one side of the moving member with respect to the direction intersecting the moving direction of the moving member;
A convex portion that is disposed on the other side of the moving member and projects outward with respect to a direction that intersects the direction in which the moving member moves,
A second guide portion that is provided in the housing portion and extends in a direction in which the moving member moves, the convex portion contacts, and guides the convex portion as the moving member moves;
It is provided with.

The invention according to claim 4 is the container for the medium according to claim 3,
The contact position between the convex portion and the second guide member is arranged outside the contact position between the contact member and the guide member with respect to the moving direction of the moving member. .

The invention described in claim 5 is the medium container according to any one of claims 1 to 4,
A plurality of the first elastic portions and a plurality of the second elastic portions are disposed along the moving direction of the moving member,
With respect to the moving direction of the moving member, the elastic portions arranged on the inner side of the moving member are more powerful than the elastic members arranged on the outer side of the moving member pushing the guide member. The force to press is set to be smaller.

In order to solve the technical problem, an image forming apparatus according to a sixth aspect of the present invention provides:
A medium storage container according to any one of claims 1 to 5, which stores a medium on which an image is recorded,
A recording unit for recording an image on the medium supplied from the medium container;
It is provided with.

In order to solve the technical problem, an image reading device according to claim 7 is provided.
The medium container according to any one of claims 1 to 5, which contains a medium on which an image is recorded,
A reading unit for reading an image of the medium supplied from the medium container;
It is provided with.

According to the first, sixth, and seventh aspects of the present invention, it is possible to reduce the variation in the force for operating the member for aligning the medium as compared with the case where the first elastic portion and the second elastic portion are not provided. .
According to the second aspect of the present invention, it is possible to reduce variation in force required when moving the first movable body and the second movable body that are movable relative to each other.
According to invention of Claim 3, compared with the case where it does not have a convex part, the movement of a moving member can be stabilized.
According to the fourth aspect of the present invention, the contact position between the convex portion and the second guide member is greater than the contact position between the contact member and the guide member as compared with the case where the contact position between the convex portion and the second guide member is disposed inside. The movement can be stabilized.
According to the fifth aspect of the present invention, the force of each elastic part arranged inside the moving member pushing the guide member is greater than the force of each elastic part arranged outside the moving member pushing the guide member. However, the bending of the moving member can be reduced as compared with the case where the same or larger is set.

FIG. 1 is an explanatory diagram of an image forming apparatus including a medium container according to a first embodiment of the present invention. 2A and 2B are explanatory views of the manual feed tray according to the first embodiment, FIG. 2A is a perspective view, and FIG. 2B is a partial cross-sectional view of FIG. 2A. FIG. 3 is an explanatory diagram of the moving member of the first embodiment. FIG. 4 is an explanatory diagram of the force acting in the first embodiment, FIG. 4A is an explanatory diagram of the force when the spring arm moves to the right, and FIG. 4B is an explanatory diagram of the force when the spring arm moves to the left. FIG. FIG. 5 is a diagram illustrating the force acting on the moving member in a simplified manner. FIG. 5A is a diagram illustrating the case where the force pressed by the elastic portion is uniform. FIG. 5B is a diagram illustrating the case of the first embodiment. FIG. 6 is an explanatory diagram of the moving member of the second embodiment, and corresponds to FIG. 3 of the first embodiment. FIG. 7 is a simplified view of the moving member of the second embodiment, and corresponds to FIG. 5 of the first embodiment. FIG. 8 is an explanatory diagram of the moving member of the third embodiment and corresponds to FIG. 7 of the second embodiment. FIG. 9 is an explanatory diagram of the moving member of the fourth embodiment, and corresponds to FIG. 5 of the first embodiment. FIG. 10 is an explanatory diagram of the moving member of the fifth embodiment, and corresponds to FIG. 5 of the first embodiment.

Next, examples as specific examples of embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following examples.
In order to facilitate understanding of the following description, in the drawings, the front-rear direction is the X-axis direction, the left-right direction is the Y-axis direction, the up-down direction is the Z-axis direction, and arrows X, -X, Y, -Y, The direction indicated by Z and -Z or the indicated side is defined as the front side, the rear side, the right side, the left side, the upper side, the lower side, or the front side, the rear side, the right side, the left side, the upper side, and the lower side, respectively.
In the figure, “•” in “○” means an arrow heading from the back of the page to the front, and “×” in “○” is the front of the page. It means an arrow pointing from the back to the back.
In the following description using the drawings, illustrations other than members necessary for the description are omitted as appropriate for easy understanding.

FIG. 1 is an explanatory diagram of an image forming apparatus including a medium container according to a first embodiment of the present invention.
In FIG. 1, a copier U as an example of an image forming apparatus according to the first exemplary embodiment is an example of a recording unit, and includes a printer unit U1 as an example of an image recording apparatus. A scanner unit U2 as an example of a reading unit and an example of an image reading device is supported on the upper portion of the printer unit U1. An auto feeder U3 as an example of a document transport device is supported on the upper portion of the scanner unit U2. The scanner unit U2 of the first embodiment supports a user interface U0 as an example of an input unit. The user interface U0 can be operated by the operator by inputting the user interface U0.

  A document tray TG1 as an example of a medium container is disposed on the upper part of the auto feeder U3. A plurality of documents Gi to be copied can be stacked and stored in the document tray TG1. A document discharge tray TG2 as an example of a document discharge unit is formed below the document tray TG1. A document transport roll U3b is disposed along the document transport path U3a between the document tray TG1 and the document discharge tray TG.

A platen glass PG as an example of a transparent document table is disposed on the upper surface of the scanner unit U2. In the scanner unit U2 of the first embodiment, a reading optical system A is disposed below the platen glass PG. The optical system A for reading in Example 1 is supported so as to be movable in the left-right direction along the lower surface of the platen glass PG. The reading optical system A is normally stopped at the initial position shown in FIG.
On the left side of the optical system A for reading, an imaging element CCD as an example of an imaging member is disposed. An image processing unit GS is electrically connected to the image sensor CCD.
The image processing unit GS is electrically connected to the writing circuit DL of the printer unit U1. The writing circuit DL is electrically connected to an exposure apparatus ROS as an example of a latent image forming apparatus.

A photosensitive drum PR, which is an example of an image carrier, is disposed below the exposure apparatus ROS. The photosensitive drum PR rotates in the direction of the arrow Ya.
On the photosensitive drum PR, a charging roll CR, which is an example of a charger, is disposed opposite to the charging area Q0. A charging voltage is applied from the power supply circuit E to the transfer roll CR. The power supply circuit E is controlled by a controller C as an example of a control unit. The controller C performs various controls by transmitting and receiving signals to and from the image processing unit GS and the writing circuit DL.
In the writing area Q1 set on the downstream side of the charging area Q0 with respect to the rotation direction of the photosensitive drum PR, a laser beam L as an example of writing light from the exposure device ROS is formed on the surface of the photosensitive drum PR. Is irradiated.
In the developing area Q2 set on the downstream side of the writing area Q1 with respect to the rotation direction of the photosensitive drum PR, the developing device G is disposed to face the surface of the photosensitive drum PR.

On the left side of the developing device G, a cartridge K as an example of a developer container is disposed. The cartridge K is detachably attached to a cartridge holder KS as an example of a container support member. Below the cartridge holder KS, a reserve tank RT as an example of a temporary storage portion for the developer is disposed. The reserve tank RT and the developing device G are connected by a developer transport device GH.
A transfer area Q3 is set on the downstream side of the development area Q2 with respect to the rotation direction of the photosensitive drum PR.

Under the copying machine main body U1, paper feed trays TR1 to TR4 as an example of a medium container are detachably supported. Sheets T as an example of a medium are accommodated in the sheet feed trays TR1 to TR4.
A pickup roll Rp as an example of a medium take-out member is disposed on the upper left side of the paper feed trays TR1 to TR4. On the left side of the pick-up roll Rp, a separating roll Rs as an example of a separating member is disposed.
On the left side of each of the paper feed trays TR1 to TR4, a medium transport path SH1 extending upward is formed. A plurality of transport rolls Ra as an example of a medium transport member are arranged in the transport path SH1. In the conveyance path SH1, a registration roll Rr as an example of a feeding member is disposed on the downstream side in the conveyance direction of the sheet S and on the upstream side of the transfer region Q3.

  On the left side of the cartridge holder KS or the like, a manual feed tray TRt, which is an example of a medium storage container and serves as a manual feed portion, is installed. The manual feed tray TRt according to the first exemplary embodiment is supported to be rotatable about the rotation center TRt0. Therefore, the manual feed tray TRt is configured to be movable between a housed position shown by a solid line in FIG. 1 and a feedable position shown by a one-dot chain line in FIG. When the manual feed tray TRt according to the first embodiment is moved to the stored position, a part TRt1 of the manual feed tray TRt is accommodated in a state of entering the lower side of the cartridge holder KS and the left side of the reserve tank RT. . Accordingly, the entire copying machine U is reduced in capacity and reduced in size.

In the transfer area Q3, a transfer unit TU, which is an example of a transfer device and an example of a medium transport device, is disposed below the photosensitive drum PR. The transfer unit TU includes an endless transfer belt TB as an example of a medium transport member.
The transfer belt TB is rotatably supported by a driving roll Rd as an example of a driving member and a driven roll Rf as an example of a driven member.
Inside the transfer belt TB, a transfer roll TR as an example of a transfer device is supported. The transfer roll TR is disposed to face the photosensitive drum PR with the transfer belt TB interposed therebetween. Therefore, the transfer region Q3 is constituted by the region where the transfer roll TR and the photosensitive drum PR face each other. A transfer voltage is applied from the power supply circuit E to the transfer roll TR.

A peeling claw SC as an example of a medium peeling member is disposed at the right end of the transfer belt TB. Below the peeling claw SC, a belt cleaner CLb as an example of a cleaner of the transfer device is disposed to face the surface of the transfer belt TB.
Note that a drum cleaner CLp, which is an example of an image carrier cleaner, is disposed on the downstream side of the transfer region Q3 with respect to the rotation direction of the photosensitive drum PR so as to face the surface of the photosensitive drum PR. Yes.

A fixing device F is disposed on the right side of the transfer unit TU. The fixing device F includes a heating roll Fh as an example of a heating rotating member and a pressure roll Fp as an example of a pressing rotating member.
To the right of the fixing device F, a discharge path SH2 extending upward is connected as an example of a medium transport path.
In the discharge path SH2, as an example of a medium transport member, a transport roll Rb and a discharge roll Rh capable of transporting the medium and rotating in the forward and reverse directions are arranged.
On the upper surface of the printer unit U1, a paper discharge tray Rh as an example of a medium discharge unit is formed.

A reversing path SH3, which is an example of a medium transport path, is formed below the discharge path SH2. The reversing path SH3 according to the first embodiment branches from the discharge path SH2 and extends downward, and joins the transport path SH1 on the upstream side in the sheet transport direction from the registration roll Rr.
A gate MG as an example of a transfer direction switching member is disposed at a branch portion between the discharge path SH2 and the reversal path SH3. The gate MG of the first embodiment is formed of an elastically deformable thin film shape, so-called film. When the sheet S conveyed from the fixing device F passes through the gate MG, the gate MG is pushed by the sheet S and is elastically deformed so that the sheet S can pass through the discharge path SH2. When the sheet S is conveyed from the discharge path SH2 to the reversing path SH3, the gate MG is held in an elastically restored state, preventing the sheet S from entering the fixing device F, and the reversing path SH3. It arrange | positions so that the sheet | seat S may be guided to the side.

(Description of image forming operation)
The plurality of documents Gi stored in the document tray TG1 sequentially passes through the document reading position on the platen glass PG and is discharged to the document discharge tray TG2.
When the automatic feeder U3 is used to automatically convey and copy a document, each document that sequentially passes through the reading position on the platen glass PG with the reading optical system A stopped at the initial position. Gi is exposed.
When the operator places the document Gi on the platen glass PG by hand, the optical system A for reading moves in the left-right direction, and the document on the platen glass PG is scanned while being exposed.
The reflected light from the document Gi passes through the optical system A and is collected on the image sensor CCD. The image pickup device CCD converts the reflected light of the original collected on the image pickup surface into an electric signal.

The image processing unit GS converts the read signal input from the image sensor CCD into a digital image signal and outputs the digital image signal to the writing circuit DL of the printer unit U1. The writing circuit DL outputs a control signal corresponding to the input image writing signal to the exposure apparatus ROS.
The surface of the photosensitive drum PR is charged by the charging roll CR in the charging region Q0. At the latent image writing position Q1, the laser beam L output from the exposure apparatus ROS forms an electrostatic latent image on the surface of the photoconductor PR. In the developing region Q2, the developing device G develops the electrostatic latent image on the photosensitive drum PR that passes through the developing region Q2 into a toner image Tn as an example of a visible image. When the developer is consumed in the developing device G, the developer transport device GH is operated according to the consumption amount, and the developer is supplied from the cartridge K to the developing device G.

The sheets S of the respective trays TR1 to TR4 are taken out by the pickup roll Rp at a preset sheet feeding time. The sheets S picked up by the pickup roll Rp are separated one by one by the separating roll Rs when picked up in a state where a plurality of sheets S are overlapped. The sheet S that has passed the separating roll Rs is conveyed to the registration roll Rr by a plurality of conveyance rolls Ra.
The sheet S fed from the manual feed tray TRt also joins the transport path SH and is transported to the registration roll Rr.

The sheet S conveyed to the registration roll Rr is transferred from the sheet guide SG1 before transfer as an example of a guide member before transfer to the transfer area according to the timing when the toner image on the surface of the photosensitive drum PR moves to the transfer area Q3. It is transported toward Q3.
The sheet S conveyed from the registration roll Rr is supported on the surface of the transfer belt TB and passes through the transfer region Q3. The toner image Tn on the surface of the photosensitive drum PR is transferred to the sheet S passing through the transfer region Q3 by the transfer voltage applied to the transfer roll TR.
The surface of the photosensitive drum PR after passing through the transfer region Q3 is cleaned by removing residual toner by the drum cleaner CLp. The surface of the photosensitive drum PR after cleaning is recharged by the charging roll CR.

The sheet S to which the toner image Tn is transferred is peeled from the transfer belt TB by the peeling claw SC. From the transfer belt TB from which the sheet S has been peeled off, deposits such as developer and paper dust attached to the surface of the transfer belt TB are removed by the belt cleaner CLb. When the sheet S peeled from the transfer belt TB passes through the contact area between the heating roll Fh and the pressure roll Fp, the toner image is heated and pressed to be fixed.
The recording sheet S on which the toner image is fixed passes through the gate MG while being elastically deformed, and is conveyed to the discharge path SH2. The sheet S discharged to the paper discharge tray TRh is transported by the transport roll Rb and discharged to the paper discharge tray TRh by the discharge roll Rh.

  When duplex printing is performed, the trailing edge of the sheet S on which one side has been recorded is conveyed downstream by the conveyance roll Rb and the discharge roll Rh until it passes through the gate GT. When the trailing edge of the sheet S passes through the gate GT1, the transport roll Rb and the discharge roll Rh rotate in the reverse direction and are transported from the discharge path SH2 toward the reversal path SH3. That is, the sheet S is so-called switched back with the conveyance direction reversed. The switched-back sheet S is guided to the gate GT and conveyed on the reversing path SH3. The sheet S conveyed on the reversing path SH3 joins the conveying path SH1, and is conveyed to the registration roll Rr with the front and back sides reversed. Then, an image is printed on the second surface of the sheet S in the transfer region Q3.

(Description of bypass tray)
2A and 2B are explanatory views of the manual feed tray according to the first embodiment, FIG. 2A is a perspective view, and FIG. 2B is a partial cross-sectional view of FIG. 2A.
2, the manual feed tray TRt according to the first embodiment includes a tray main body 1 as an example of a storage unit. The tray main body 1 includes a plate-shaped stacking plate 2 disposed on the upper portion as an example of a stacking member. A stacking surface 2 a is formed on the top surface of the stacking plate 2, and a sheet S to be fed can be stacked on the stacking surface 2 a. A pair of front and rear recesses 2b that are recessed from the stacking surface 2a are formed on the right portion of the stacking surface 2a as an example of an accommodating portion for the alignment member. In each recess 2b, a slit 2c extending in the front-rear direction is formed as an example of a connecting member passage. The slit 2c is formed so as to penetrate the stacking plate 2 in the vertical direction.

At both front and rear ends of the right portion of the stacking plate 2, supported portions 3 extending rightward are formed. A rotation center TRt0 is formed at the right end of the supported portion 3. Therefore, the manual feed tray TRt is supported by the printer unit U1 so as to be rotatable around the rotation center TRt0 of the supported portion 3. In the first embodiment, the supported portion 3 constitutes the part TRt1 of the manual feed tray TRt.
Below the stacking plate 2, a plate-like lower plate portion 4 as an example of a support member for the alignment member is supported by the stacking plate 2.
In FIG. 2B, a plurality of reinforcing ribs 5 extending in the left-right direction are formed on the left portion of the lower plate portion 4 as an example of a reinforcing portion. In the right part of the lower plate part 4, as an example of the accommodating part of the moving member, concave grooved rack accommodating parts 6, 7 extending in the front-rear direction at positions corresponding to the lower part of the concave part 2b correspond to the slits 2c. A pair of left and right is formed.

A left guide wall 8 extending in the front-rear direction is formed on the left side of the left accommodating portion 6 as an example of a guide portion. A left contact wall 9 extending in the front-rear direction is formed on the right side of the left receiving portion 6 as an example of the second guide portion.
A right guide wall 11 extending in the front-rear direction is formed on the right side of the right accommodating portion 7 as an example of a guide portion. A right contact wall 12 extending in the front-rear direction is formed on the left side of the right accommodating portion 7 as an example of the second guide portion.
A pinion gear 13, which is an example of a gear, is rotatably supported on the lower plate portion 4 between the contact walls 9 and 12 and in the center portion in the front-rear direction. The outer diameter of the pinion gear 13 according to the first embodiment is set so that the outer ends in the left-right direction pass through the contact walls 9 and 12 and enter the interiors of the accommodating portions 6 and 7 of the racks. ing.

FIG. 3 is an explanatory diagram of the moving member of the first embodiment.
2 and 3, a left rack 16 as an example of a first moving member is disposed in the left rack housing 6. Further, a right rack 17 as an example of a second moving member is disposed in the right rack accommodating portion 7. The racks 16 and 17 of the first embodiment are configured in the same manner only by being arranged point-symmetrically around the pinion gear 13. Therefore, in the following description, only the left rack 16 will be described in detail, and the description of the right rack 17 will be omitted.
In FIG. 3, the rack 16 according to the first embodiment is formed in a plate shape extending in the front-rear direction. At the rear end of the rack 16, as an example of a connecting portion, a screw through-hole 21 penetrating in the vertical direction is formed.

A gear portion 22 as an example of a first meshing portion is formed on the right side surface of the rack 16 from the front portion to the rear portion of the rack 16. The gear portion 22 meshes with the pinion gear 13.
On the right side surface of the rack 16, a pair of front and rear convex portions 23 are formed on both front and rear sides of the gear portion 22. The convex part 23 of Example 1 is comprised by the semicircular disk-shaped protrusion. The convex portion 23 is configured to be able to contact the contact wall 9.

  A plurality of spring arms 26 as an example of contact members are formed on the left side surface of the rack 16. The spring arm 26 according to the first embodiment includes a front end leaf spring portion 27 disposed at the front end of the rack 16 as an example of the second elastic portion. The front end leaf spring portion 27 is formed integrally with the rack 16 at a base end 27 a set at the front end. Accordingly, the rear end of the leaf spring portion 27 at the front end is a free end 27b. Accordingly, the front end leaf spring portion 27 extends from the front base end 27a toward the rear free end 27b. Therefore, the leaf spring portion 27 at the front end is formed in a leaf spring shape that can be elastically deformed. A protrusion 27c as an example of a contact portion is formed on the free end 27b. The protrusion 27c of Example 1 is configured by a semicircular disk-like protrusion. Further, the protrusion 27 c is configured to be able to contact the guide wall 8. When the protrusion 27 c comes into contact with the guide wall 8, the leaf spring portion 27 at the front end is elastically deformed. Therefore, an elastic force acts with the elastic deformation of the leaf spring portion 27 at the front end, and the protruding portion 27 c is in a state of pushing the guide wall 8.

  A front leaf spring portion 28 as an example of a second elastic portion is disposed behind the leaf spring portion 27 at the front end. The front leaf spring portion 28 has a base end 28 a, a free end 28 b, and a projection portion 28 c, similar to the front end leaf spring portion 27. In the first embodiment, the protrusion 28c of the front leaf spring portion 28 is formed such that the height of the protrusion is lower than the height of the protrusion 27c of the leaf spring portion 27 at the front end. Accordingly, the force by which the projection 28 c of the front leaf spring portion 28 pushes the guide wall 8 is set to be weaker than the force by which the projection 27 c of the front leaf spring portion 27 pushes the guide wall 8.

At the rear end of the left side surface of the rack 16, a leaf spring portion 29 at the rear end as an example of the first elastic portion is formed. The leaf spring portion 29 at the rear end is configured symmetrically with respect to the leaf spring portion 27 at the front end. Accordingly, the leaf spring portion 29 at the rear end has a base end 29a set at the rear end. The front end of the leaf spring portion 29 at the rear end is a free end 29b. Therefore, the leaf spring portion 29 at the rear end extends from the rear base end 29a toward the front free end 29b. Further, a protrusion 29c as an example of a contact portion is formed on the free end 29b. The projecting portion 29c of the first embodiment is configured in the same manner as the projecting portion 27c of the leaf spring portion 27 at the front end.
Further, a rear leaf spring portion 31 as an example of the first elastic portion is disposed in front of the rear end leaf spring portion 29. The rear leaf spring part 31 is configured symmetrically with the front leaf spring part 28 in the front-rear direction. Therefore, the rear leaf spring portion 31 has a proximal end 31a disposed rearward. A free end 31 b is formed at the front end of the rear leaf spring portion 31. A protrusion 31c is formed at the front end of the free end 31b. Further, the height of the protruding portion 31c is formed lower than the height of the protruding portion 29c at the rear end, similarly to the protruding portion 28c of the front leaf spring portion 28.

Therefore, in the racks 16 and 17 of the first embodiment, the protrusions 27 c to 31 c are in contact with the guide walls 8 and 11 and the protrusions 23 are in contact with the contact walls 9 and 12. It is supported so that it can move in the front-rear direction. At this time, in the racks 16 and 17, the gear portion 22 is engaged with the pinion gear 13, and the amount of movement of the left rack 16 in the front-rear direction matches the amount of movement of the right rack 17 in the front-rear direction. That is, when one rack 16, 17 is moved forward or backward, the other rack 16, 17 moves in conjunction with the rear or forward via the gear portion 22 and the pinion gear 13.
In the first embodiment, the position at which the convex portion 23 contacts the contact walls 9 and 12 is arranged on the outer side with respect to the front-rear direction as compared with the position at which the protrusions 27 c to 31 c contact the guide walls 8 and 11. Has been.

In FIGS. 2 and 3, side guides 36 and 37, which are examples of alignment portions, are supported on the racks 16 and 17. The side guides 36 and 37 have plate-like bottom plate portions 36a and 37a along the stacking surface 2a. Alignment walls 36b and 37b extending upward are formed on the outer ends of the bottom plates 36a and 37a in the front-rear direction as an example of the body of the alignment section. The side guides 36 and 37 are screwed to the racks 16 and 17 by screws (not shown) that pass through the screw through holes 21 and the slits 2c and are fastened to the bottom plates 36a and 37a. Therefore, the side guides 36 and 37 move in the front-rear direction integrally with the racks 16 and 17.
The rear side guide 36 and the left rack 16 constitute a rear guide unit 41 as an example of the first moving body of the first embodiment. The front side guide 37 and the right rack 17 constitute a front guide unit 42 as an example of the second moving body of the first embodiment. The rear guide unit 41 and the front guide unit 42 constitute a guide unit 41 + 42 as an example of the moving body of the first embodiment.

(Description of manual feed tray function)
In the copying machine U according to the first embodiment having the above-described configuration, when sheets are fed from the manual feed tray TRt, the sheets S are stacked on the stacking surface 2a. Then, when the operator moves the side guides 36 and 37 in the front-rear direction and contacts the edges of the sheets S on which the alignment walls 36b and 37b are stacked, the edges of the bundle of sheets S are aligned. At this time, in the side guides 36 and 37, the projecting portions 27 c to 31 c of the spring arm 26 are in contact with the guide walls 8 and 11. Therefore, the spring arm 26 exerts a force that holds the positions of the side guides 36 and 37. Therefore, the side guides 36 and 37 are held in a state where the alignment walls 36 b and 37 b are in contact with the edge of the sheet S. Therefore, when the sheet S is fed, the side guides 36 and 37 come into contact with the edge of the sheet S to be sent out to guide. Therefore, tilting when the sheet S is sent out is reduced.

FIG. 4 is an explanatory diagram of the force acting in the first embodiment, FIG. 4A is an explanatory diagram of the force when the spring arm moves to the right, and FIG. 4B is an explanatory diagram of the force when the spring arm moves to the left. FIG.
Next, the force that acts when the side guides 36 and 37 move in the front-rear direction will be described with reference to FIG. In order to facilitate understanding, the leaf spring portion 29 at the rear end will be described. Accordingly, the other leaf spring portions 27, 28, 31 have the same mechanical relationship and will not be described in detail.

When the side guides 36 and 37 according to the first embodiment are stopped, the leaf spring portion 29 is elastic as shown in FIG. 4 in a state where the projection 29c of the leaf spring portion 29 is in contact with the guide walls 8 and 11. Deformed and bent. Accordingly, the leaf spring portion 29 exerts an elastic force, and the protruding portion 29c pushes the guide walls 8 and 11 with the force F. Therefore, based on the force F, a frictional force acts between the projection 29c and the guide walls 8 and 11, and the positions of the side guides 36 and 37 are maintained. Therefore, even if a weak force such as a shake or a disturbance when the sheet S is conveyed acts, the positions of the side guides 36 and 37 are easily held.
At this time, the leaf spring portion 29 is in a bent state, and when the bending angle of the leaf spring portion 29 is θ, the pressing force F is a component of F · cos θ with respect to the guide walls 8 and 11. Apply the power of.

In FIG. 4A, when the side guides 36 and 37 move so that the spring arm 26 extending to the right moves to the right, as shown in FIG. 4A, a frictional force C1 in the direction opposite to the moving direction of the spring arm 26 is obtained. Act. The frictional force C1 is expressed by the following equation (1), where the friction coefficient is μ and the reaction force acting according to the law of action / reaction by the pressing force F is N1.
C1 = μ · N1 (1)
At this time, as shown in FIG. 4A, the frictional force C1 applies a component force toward the guide walls 8 and 11 in the direction in which the protrusion 29c pushes the guide walls 8 and 11. That is, the projection 29c applies a force C1a in the direction of biting against the guide walls 8 and 11. The force C1a in the biting direction is expressed by the following formula (2).
C1a = C1 · sin θ = μ · N1 · sin θ Equation (2)

The force C1a in the biting direction causes a vertical drag N1 ′ to act on the guide walls 8 and 11. The normal drag N1 ′ is expressed by the following equation (3).
N1 ′ = C1a · cos θ
= C1 · sin θ · cos θ = μ · N1 · sin θ · cos θ (3)
Therefore, the equation of balance of force at this time is expressed by the following equation (4).
F + μ · N1 · sin θ · cos θ = N1 (4)
When this formula is arranged, it is expressed by the following formula (5).
N1 = F / (1−μ · sin θ · cos θ) (5)
Therefore, from the equations (5) and (1), the frictional force C1 is expressed by the following equation (6).
C1 = μ · F / (1−μ · sin θ · cos θ) (6)

On the other hand, in FIG. 4B, when the side guides 36 and 37 move so that the spring arm 26 extending to the right moves to the left, as shown in FIG. 4B, friction occurs in the direction opposite to the moving direction of the spring arm 26. Force C2 acts. Unlike the case of FIG. 4A, this frictional force C <b> 2 has a component in a direction in which the protrusion 29 c is separated from the guide walls 8 and 11, as shown in FIG.
Therefore, when the frictional force C2 is calculated in the same manner as the above-described formulas (1) to (6), the following formula (6 ′) is derived.
C2 = μ · F / (1 + μ · sin θ · cos θ) Equation (6 ′)

Therefore, it can be seen from equations (6) and (6 ′) that the frictional force varies depending on the direction in which the side guides 36 and 37 are moved. Therefore, in the configuration in which the leaf spring portion (18d) is unified in one direction as in the prior art described in Patent Document 1, the worker is moved in one direction and moved in the other direction. However, there was a problem that the force required for the operation fluctuated.
In contrast, in the first embodiment, the front end leaf spring portion 27 and the rear end leaf spring portion 29 face each other and extend in opposite directions to form a pair. Similarly, the front leaf spring portion 28 and the rear leaf spring portion 31 also form a pair. Therefore, when the racks 16 and 17 move forward, the frictional force of the formula (6) acts on the two rear leaf springs 29 and 31 and also on the two front leaf springs 27 and 28. The frictional force of the formula (6 ′) acts. Further, when the racks 16 and 17 are moved rearward, the frictional force of the formula (6) acts on the two front leaf spring portions 27 and 28, and the rear two leaf spring portions 29 and 31 are applied. The frictional force of the formula (6 ′) acts. Therefore, the applied frictional force is the same regardless of the movement direction of the racks 16 and 17. Therefore, it is necessary for the operator to operate compared to the conventional configuration in which the frictional force of the equation (6) acts on all the leaf spring portions (18d) or the frictional force of the equation (6 ′) acts. It is possible to reduce the variation in power.

FIG. 5 is a diagram illustrating the force acting on the moving member in a simplified manner. FIG. 5A is a diagram illustrating the case where the force pressed by the elastic portion is uniform. FIG. 5B is a diagram illustrating the case of the first embodiment.
In FIG. 5A, when the heights of the projections 27c to 31c of the leaf springs 27 to 31 are the same, the reaction forces received by the projections 27c to 31c from the guide walls 8 and 11 are also the same. Here, in the racks 16 and 17, convex portions 23 are arranged at both front and rear ends on the side surface opposite to the leaf spring portions 27 to 31. Accordingly, the reaction force received by the protrusions 27c to 31c is received by the convex portion 23 at both the front and rear ends, and there is no member receiving the reaction force at the center portion in the front-rear direction. Therefore, the racks 16 and 17 may bend at the center in the front-rear direction, as indicated by the broken line in FIG. 5A. If the racks 16 and 17 are bent, the meshing between the gear portion 22 and the pinion gear 13 may become too deep. If the meshing between the gear portion 22 and the pinion gear 13 is deepened, the rotation resistance of the pinion gear 13 is increased, and there is a possibility that the force required for the movement of the racks 16 and 17 increases or the racks 16 and 17 cannot move. Further, when the meshing between the gear portion 22 and the pinion gear 13 is deepened, the wear of the gear portion 22 and the pinion gear 13 is increased, and the life of the manual feed tray TRt may be shortened.

  On the other hand, in Example 1, with respect to the front-rear direction, in the inner leaf spring portions 28 and 31, the height of the protrusions 28c and 31c is higher than the height of the outer protrusions 27c and 29c. It is formed low. Therefore, as shown in FIG. 5B, the reaction force received by the inner protrusions 28c and 31c is smaller than the reaction force received by the outer protrusions 27c and 29c. Therefore, the racks 16 and 17 are less likely to bend compared to the case where the reaction forces received by the protrusions 27c to 31c are the same. Therefore, the possibility that the force required for the movement of the racks 16 and 17 will increase and the lifetime will be shortened is reduced.

Furthermore, in Example 1, the convex part 23 is contacting the contact walls 9 and 12 in the front-end | tip part. When the convex portion 23 is not provided, the racks 16 and 17 come into contact with the contact walls 9 and 12 on the surface. When the racks 16 and 17 come into contact with the contact walls 9 and 12 on the surface, due to manufacturing errors of the racks 16 and 17 and the contact walls 9 and 12, the racks 16 and 17 and the contact walls 9 and 12 and the protrusions 27c to 31c The position where the guide walls 8 and 11 are in contact with each other may be unstable. If the positions where the projections 27c to 31c contact the guide walls 8 and 11 become unstable, the movement of the racks 16 and 17 may become unstable. Further, when the racks 16 and 17 come into contact with the contact walls 9 and 12 on the surface, there is a possibility that the friction increases.
On the other hand, in Example 1, the convex part 23 is contacting the contact walls 9 and 12, and the position where the racks 16 and 17 are in contact with the contact walls 9 and 12 on the surface is stable. It is easy to do and friction is also reduced.

In particular, in Example 1, the convex part 23 is arrange | positioned on the outer side in the front-back direction with respect to the position which each protrusion part 27c-31c contacts the guide walls 8 and 11, ie, the position which receives reaction force. Therefore, the convex part 23 is arrange | positioned so that the protrusion parts 27c-31c may straddle the position which contacts the guide walls 8 and 11. FIG. When the convex portion 23 is disposed on the inner side in the front-rear direction than the position where the projecting portions 27 c to 31 c are in contact with the guide walls 8 and 11, the reaction force acting on the outer side of the convex portion 23 causes the racks 16 and 17. There is a risk of applying a moment to rotate the convex portion 23 as a fulcrum. That is, there is a possibility that a force for rotating the racks 16 and 17 may act. Therefore, there is a problem that the movement of the racks 16 and 17 becomes unstable or the friction or the like becomes large due to manufacturing error or backlash.
On the other hand, in Example 1, the convex part 23 is arrange | positioned so that the protrusion parts 27c-31c may straddle the position which contacts the guide walls 8 and 11, and the force which rotates the racks 16 and 17 acts. It has become difficult. Therefore, the movement of the racks 16 and 17 is stabilized, and the increase in friction and the like is reduced.

FIG. 6 is an explanatory diagram of the moving member of the second embodiment, and corresponds to FIG. 3 of the first embodiment.
FIG. 7 is a simplified view of the moving member of the second embodiment, and corresponds to FIG. 5 of the first embodiment.
Next, a second embodiment of the present invention will be described. In the description of the second embodiment, components corresponding to the components of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. To do.
The second embodiment is different from the first embodiment in the following points, but is configured in the same manner as the first embodiment in other points.
6 and 7, in the racks 16 and 17 of the second embodiment, the leaf spring portions 28 and 31 arranged on the inner side in the front-rear direction in the first embodiment are omitted.

(Operation of Example 2)
In the racks 16 and 17 of the second embodiment having the above-described configuration, as in the first embodiment, it is possible to reduce the variation in force required when the operator operates the side guides 36 and 37 in the front-rear direction. is there. Further, similarly to the first embodiment, the deflection of the racks 16 and 17 is reduced, the movement of the racks 16 and 17 is stabilized, and the increase in friction is reduced.
Further, in the second embodiment, only two portions for pushing the guide walls 8 and 11 are provided, and the overall frictional force is reduced as compared with the configuration of the first embodiment in which four guide walls are provided. Therefore, compared to the case of the first embodiment, the side guides 36 and 37 are easily shaken in the front-rear direction, but the force required for the operator to operate is reduced.

FIG. 8 is an explanatory diagram of the moving member of the third embodiment and corresponds to FIG. 7 of the second embodiment.
Next, the third embodiment of the present invention will be described. In the description of the third embodiment, the same reference numerals are given to the components corresponding to the components of the first and second embodiments, and the detailed description thereof will be given. Is omitted.
The third embodiment is different from the first and second embodiments in the following points, but is configured in the same manner as the first and second embodiments in other points.
In FIG. 8, the racks 16 and 17 of the third embodiment have a pair of front and rear leaf spring portions 27 ′ and 29 ′ as in the second embodiment. Unlike the first and second embodiments in which the leaf spring portions 27 and 29 extend in the direction in which the leaf spring portions 27 and 29 face each other, the leaf spring portions 27 ′ and 29 ′ of the third embodiment extend toward the opposite sides. That is, the base ends 27a 'and 29a' are arranged on the inner side with respect to the front-rear direction, and the free ends 27b 'and 29b' and the protruding portions 27c 'and 29c' are arranged on the outer side.

(Operation of Example 3)
Also in the racks 16 and 17 of the third embodiment having the above-described configuration, as in the second embodiment, it is possible to reduce the variation in force required when the operator operates the side guides 36 and 37 in the front-rear direction. is there. Further, similarly to the first embodiment, the deflection of the racks 16 and 17 is reduced, the movement of the racks 16 and 17 is stabilized, and the increase in friction is reduced.

FIG. 9 is an explanatory diagram of the moving member of the fourth embodiment, and corresponds to FIG. 5 of the first embodiment.
Next, the fourth embodiment of the present invention will be described. In the description of the fourth embodiment, the same reference numerals are given to the components corresponding to the components of the first to third embodiments, and the detailed description thereof will be given. Is omitted.
The fourth embodiment is different from the first to third embodiments in the following points, but is configured similarly to the first to third embodiments in other points.
In FIG. 9, the racks 16 and 17 of the fourth embodiment have two pairs of front and rear leaf spring portions 27, 28 ′, 29, and 31 ′ as in the first embodiment. In the fourth embodiment, the leaf spring portions 28 ′ and 31 ′ on the inner side in the front-rear direction extend toward the outside as in the third embodiment.

(Operation of Example 4)
In the racks 16 and 17 according to the fourth embodiment having the above-described configuration, as in the first to third embodiments, it is possible to reduce the variation in force required when the operator operates the side guides 36 and 37 in the front-rear direction. Is possible. Further, similarly to the first embodiment, the deflection of the racks 16 and 17 is reduced, the movement of the racks 16 and 17 is stabilized, and the increase in friction is reduced.
In the fourth embodiment, the positions where the inner projections 28 c ′, 31 c ′ in the front-rear direction contact the guide walls 8, 11 are outside as compared with the first embodiment. Therefore, the position where the projections 28c ′ and 31c ′ and the guide walls 8 and 11 are in contact with each other approaches the convex portion 23, and it is expected that the deflection of the racks 16 and 17 is further reduced.

FIG. 10 is an explanatory diagram of the moving member of the fifth embodiment, and corresponds to FIG. 5 of the first embodiment.
Next, the fifth embodiment of the present invention will be described. In the description of the fifth embodiment, the same reference numerals are given to the components corresponding to the components of the first to fourth embodiments, and the detailed description thereof will be given. Is omitted.
The fifth embodiment is different from the first to fourth embodiments in the following points, but is configured in the same manner as the first to fourth embodiments in other points.
In FIG. 10, in the racks 16 and 17 of the fifth embodiment, the leaf spring portions 61 and 62 are disposed further inside in the front-rear direction with respect to the inner leaf spring portions 28 ′ and 31 ′ in the fourth embodiment. . Further, like the leaf spring portions 27 and 31 at the outer end, the inner leaf spring portions 61 and 62 extend in a direction facing each other inward.
Therefore, in the fifth embodiment, a total of three pairs of leaf spring portions 27, 28 ', 29, 31', 61, 62 are provided.

(Operation of Example 5)
In the racks 16 and 17 of the fifth embodiment having the above-described configuration, as in the first to fourth embodiments, it is possible to reduce the variation in force required when the operator operates the side guides 36 and 37 in the front-rear direction. Is possible. Further, similarly to the first embodiment, the deflection of the racks 16 and 17 is reduced, the movement of the racks 16 and 17 is stabilized, and the increase in friction is reduced.
In particular, in the fifth embodiment, three leaf spring portions 27, 28 ′, 29, 31 ′, 61, 62 are provided, and it is possible to increase the frictional force compared to the first and fourth embodiments. . Therefore, when the sheet S is conveyed, it is easy to reduce the side guides 36 and 37 from shaking in the front-rear direction.

(Example of change)
As mentioned above, although the Example of this invention was explained in full detail, this invention is not limited to the said Example, A various change is made in the range of the summary of this invention described in the claim. Is possible. Modification examples (H01) to (H010) of the present invention are exemplified below.
(H01) In each of the above embodiments, the copying machine U is illustrated as an example of the image forming apparatus, but the present invention is not limited to this. For example, the present invention can be applied to a printer as an example of an image forming apparatus, a FAX, or a multifunction machine having a plurality of these functions. Further, the present invention is not limited to a single color image forming apparatus, and can be applied to a multicolor image forming apparatus.

(H02) In the above embodiment, the manual feed tray TRt as an example of the medium container is illustrated, but the present invention is not limited to this. The present invention can be applied to a container for an arbitrary medium in which an alignment member for aligning the ends of the medium is arranged. For example, the present invention can also be applied to the paper feed trays TR1 to TR4 and the document tray TG1 as examples of the medium container. Therefore, the present invention is not limited to an image forming apparatus such as a printer, a copier, or a FAX, and can be applied to an image reading apparatus having a document tray TG1 to which the present invention is applied, that is, a so-called scanner apparatus.

(H03) In the above-described embodiment, the shapes of the convex portion 23 and the protrusions 27c to 31c are preferably formed in a semicircular shape as illustrated in the embodiment, but are not limited thereto. For example, an arbitrary shape such as a triangular shape may be used. Moreover, it is also possible not to form the convex part 23 and the projection parts 27c-31c itself.
(H04) In the above-described embodiment, it is desirable that the convex portion 23 be disposed outside the contact position between the projecting portions 27c to 31c and the guide walls 8 and 11, but the present invention is not limited to this. That is, it is also possible to arrange the convex portion 23 on the inner side with respect to the contact position between the projecting portions 27 c to 31 c and the guide walls 8 and 11.

(H05) In the third to fifth embodiments, the leaf spring portions 28 ′ and 31 ′ arranged outwardly from each other may have a shape that extends independently from the racks 16 and 17 as illustrated in the embodiments. Although possible, it is not limited to this. That is, as shown by a broken line in FIG. 9, the base ends 28a 'and 31a' can be connected to form a single part.
(H06) In the above-described embodiment, the even number of the leaf spring portions 27 to 31, 27 'to 31', 61, 62 is provided, and the case of two pairs is illustrated, but the present invention is not limited to this. In other words, it is possible to provide an odd number of leaf spring portions and to provide a pair of leaf spring portions. In this case, the force required to operate the side guides 36 and 37 varies as compared with the case where all the leaf springs are paired, but compared to the conventional configuration in which all are formed in a unified direction. For example, the variation in force required when operating the side guides 36 and 37 is reduced.

(H07) In the first, fourth, and fifth embodiments, the protrusions 28c, 31c, 28c ′, 31c ′, 61c, and 62c disposed on the inner side in the front-rear direction are arranged on the outer side. However, the present invention is not limited to this. However, the present invention is not limited to this. Therefore, any method that can reduce the elastic force can be employed. For example, a configuration is also conceivable in which the lengths in the front-rear direction of the leaf spring portions 28, 31, 61, 62 are increased to reduce each θ of the overall deflection. In addition, it is conceivable to change the elastic coefficient by reducing the thickness of the leaf spring portions 28, 31, 61, 62. Moreover, it is also possible to change the material which comprises the leaf | plate spring parts 28, 31, 61, 62 to a material with a small elastic coefficient. In Examples 1, 4 and 5, the protrusions 28c, 31c, 28c ′, 31c ′, 61c, and 62c arranged on the inner side in the front-rear direction have the same height. A configuration in which the height is gradually lowered is also possible.

(H08) In the first, fourth, and fifth embodiments, the protrusions 28c, 31c, 28c ′, 31c ′, 61c, and 62c arranged on the inner side in the front-rear direction are arranged on the outer side. It is desirable that the elastic force is reduced and the reaction force is reduced by reducing the elastic force, but it is the same as the protrusions 28c, 31c, 28c ', 31c', 61c, 62c arranged on the outside. It is also possible to make it the height of.
(H09) In the above-described embodiment, the side guides 36 and 37 are illustrated as having a structure that can be stopped at an arbitrary position in the front-rear direction. However, the present invention is not limited to this, for example, a standard paper size such as A4, A3, or B5. Correspondingly, the guide walls 8, 11 and / or the contact walls 9, 12 are formed with recesses into which the projections 27c to 31c, 27c 'to 31c', 61c, 62c and the projections 23 fit. It is also possible to configure so that it is easy to stop at the position of the standard paper size.

(H010) In the above embodiment, the pair of side guides 36 and 37 are illustrated as moving in the direction of approaching and separating from each other using the pinion gear 13, but the present invention is not limited to this. For example, in the configuration of a movable side guide in which one is a fixed side guide and the other is approaching and separating from the fixed side guide, the present invention can be applied to the movable side guide. Therefore, the present invention is not limited to the side guides 36 and 37 that align the side surfaces of the sheet S with respect to the conveyance direction of the sheet S. Therefore, the present invention can also be applied to a so-called end guide that is in contact with the front edge or the rear edge of the sheet S in the sheet conveyance direction.

1 ... Container,
8, 11 ... guide,
9, 12 ... the second guide,
13 ... Gear,
16, 17 ... moving members,
22 ... 1st meshing part, 2nd meshing part,
23 ... convex part,
26 ... contact member,
27, 28 ... second elastic part,
29, 31 ... first elastic part,
36, 37 ... alignment members,
41 ... first moving body,
42 ... the second moving body,
43 ... moving body,
S ... medium,
TRt, TR1 to TR4, TG1,...
U: Image forming apparatus,
U1 ... recording section,
U2: Reading unit.

Claims (7)

A storage section for storing a medium;
A movable body that is disposed in the housing and is movable in a direction approaching and separating from an edge of the medium, the aligning member contacting the edge of the medium and aligning the medium; and A moving member supported and movably supported in the housing part; and
A guide portion provided in the housing portion and guiding the moving member along a direction approaching and separating from an edge of the medium;
A contact member provided on the moving member and in contact with the guide portion, the first elastic portion being elastically deformable extending in a direction approaching the edge of the medium, and extending in a direction away from the edge of the medium. A second elastic part that can be elastically deformed, and each of the elastic parts is elastically deformed to push the guide part to hold the position of the moving body,
A storage container for a medium, comprising: A first moving body movable in a direction approaching and separating from one side edge of the medium, and a second moving body movable in a direction approaching and separating from the other side edge of the medium; The moving body comprising:
A first meshing portion provided on a moving member of the first moving body;
A second meshing portion provided on a moving member of the second moving body;
A gear that meshes with the first meshing portion and the second meshing portion and is rotatable.
The medium container according to claim 1, further comprising: The contact member arranged on one side of the moving member with respect to the direction intersecting the moving direction of the moving member;
A convex portion that is disposed on the other side of the moving member and projects outward with respect to a direction that intersects the direction in which the moving member moves,
A second guide portion that is provided in the housing portion and extends in a direction in which the moving member moves, the convex portion contacts, and guides the convex portion as the moving member moves;
The medium container according to claim 1 or 2, further comprising:   The contact position between the convex portion and the second guide member is arranged outside the contact position between the contact member and the guide member with respect to the moving direction of the moving member. The container for the medium according to claim 3. A plurality of the first elastic portions and a plurality of the second elastic portions are disposed along the moving direction of the moving member,
With respect to the moving direction of the moving member, the elastic portions arranged on the inner side of the moving member are more powerful than the elastic members arranged on the outer side of the moving member pushing the guide member. The medium container according to any one of claims 1 to 4, wherein the force for pressing is set smaller. A medium storage container according to any one of claims 1 to 5, which stores a medium on which an image is recorded,
A recording unit for recording an image on the medium supplied from the medium container;
An image forming apparatus comprising: The medium container according to any one of claims 1 to 5, which contains a medium on which an image is recorded,
A reading unit for reading an image of the medium supplied from the medium container;
An image reading apparatus comprising:

Images