JP3603304B2 - Paper ejection stacker mounting device and recording device in recording device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a discharge stacker that can be applied to a recording apparatus such as a printer and a copying machine and the like, and a recording apparatus having the same, and more particularly to a detachable structure of a discharge stacker with respect to a holder.
[0002]
[Prior art]
As an example of a conventional paper output stacker in a recording device such as a printer or a copying machine, a rotating member made of a rigid material is rotated in a substantially horizontal state during use so that the paper can be used as a paper output stacker. When used, the printer is rotated so as to be substantially vertical and closes the front surface of the printer body. Further, the conventional paper discharge stacker includes an extension stacker that can be pulled out from the rotating member according to the size of the paper, and receives the large-sized paper by pulling out the extension stacker.
[0003]
On the other hand, the present applicant has a discharge receiving surface that can be bent and deformed, and when the discharge stacker is used, the discharge receiving surface takes a substantially horizontal form for receiving paper. We have been developing a paper discharge stacker whose surface can be deformed along the outer shape of the housing, and its basic structure has already been patented.
At the time of development, such a discharge stacker was assumed to continue using one discharge stacker, and thus had a structure in which the discharge stacker was substantially fixed to a holder.
[0004]
[Problems to be solved by the invention]
However, the purpose of such a stacker was originally to diversify products according to the lifestyle of the user, and the stacker with different colors and patterns was used by the user in the lifestyle scene. If it can be replaced according to the needs, it will match user needs, and it is thought that such a structure itself will stimulate consumer demand.
[0005]
SUMMARY OF THE INVENTION It is an object of the present invention to provide a device for attaching a bendable discharge stacker having a structure detachable from a holder and a recording device including the device.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a paper ejection stacker mounting device in a recording apparatus according to claim 1 of the present application holds a paper ejection stacker having a paper ejection receiving surface that can be bent and deformed, and a base end side of the paper ejection stacker. A holder having a stacker holding portion, a deformable locking portion elastically deformable is provided at a base end side of the discharge stacker, and the deformation locking portion is snap-fitted to the stacker holding portion. A receiving portion of the holder is formed by a receiving opening having a height smaller than a distance between a surface of the discharge stacker and a most protruding portion of the deformation locking portion in a natural state. A push piece smaller than the width of the receiving opening is formed at the distal end side of the deformation locking portion, and the push piece is larger than the width of the receiving opening on both sides of the base of the push piece. A locking shoulder portion functioning as a holding portion is formed, a holding portion is formed in the holder, and a held side held by the holding portion is formed in the discharge stacker; In a state where the discharge stacker is attached to the holder, the locking shoulder locks the inner side wall of the receiving opening to lock the discharge stacker to the holder. Since the held side is held by the holding portion, the posture of the paper discharge stacker is restricted, and the paper discharge stacker is prevented from being inserted at a predetermined mounting position or more. a state than the inlet openings protrudes forward, by deforming the deformable locking portion through the push piece, the engagement locking of the Tomekata portion is released, the output stacker It is characterized in that it is removable from the holder.
[0007]
According to the present invention, an elastically deformable deformation locking portion is provided on the base end side of the discharge stacker, and a receiving portion on which the deformation locking portion can be snap-fitted is formed in the stacker holding portion, By deforming the deformable locking portion while the discharge stacker is mounted on the holder, the discharge stacker can be removed from the holder, so that the deformable locking portion can be deformed without disassembling the holder. By doing so, it is possible to easily replace various discharge stackers.
According to the present invention, when the paper discharge stacker is inserted into the holder, the deformation locking portion is elastically deformed so as to follow the height of the receiving opening, and then elastically returns to realize snap fitting.
According to the present invention, when the ejection stacker is inserted into the holder, when the pushing piece reaches the receiving opening, it is elastically restored and enters the receiving opening. As a result, the locking shoulder is locked to the inner wall surface of the receiving opening, and the removal of the discharge stacker is regulated.
According to the present invention, it is possible to prevent the discharge stacker from being inserted more than necessary by the holding unit, and to prevent the discharge stacker from being curled up due to a deformation habit of the discharge stacker and maintain the shape of the discharge stacker.
[0008]
Further, in the paper ejection stacker mounting device in the recording apparatus according to claim 2 of the present invention, in the paper ejection stacker according to claim 1, the deformation locking portion uses a base region of the paper ejection stacker at a base end thereof. And a deformable locking piece which is elastically deformable so as to be rotatable around a rotation side positioned on the side and has a tendency to always protrude upward or downward from the surface of the discharge stacker. At the tip end of the piece, there is formed a removal restricting portion that locks on a part of the receiving portion when the deformable locking piece is snap-fitted into the receiving portion and regulates the removal of the discharge stacker from the holder. It is characterized by having.
[0009]
According to the present invention, when attaching the discharge stacker to the holder, the deformable locking piece can be temporarily elastically deformed and snap-fit to the receiving portion. Once the snap-fitted deformation locking piece cannot be removed as it is due to the action of the removal restricting portion, the paper discharge stacker does not accidentally come off or deviate in direction.
[0010]
According to a third aspect of the present invention, in the recording apparatus according to the first aspect of the present invention, the deformation locking portion is formed on one of upper and lower surfaces or both upper and lower surfaces of a base end region of the discharge stacker. The deformation locking piece is elastically deformable so as to be rotatable around a rotation side located on the base end side, and is always upward or above the surface of the discharge stacker. It has a tendency to protrude downward, and at the tip side of the deformable locking piece, when the deformable locking piece is snap-fitted to the receiving portion, it is locked to a part of the receiving portion to discharge the paper. It is characterized in that a detachment restricting portion for restricting detachment of the stacker from the holder is formed.
[0011]
According to the present invention, since the deformable locking portion is constituted by the deformable locking pieces attached to the upper or lower surface or both the upper and lower surfaces of the area on the base end side of the sheet discharge stacker, It can be easily installed on the paper discharge stacker by retrofitting. It is also possible to effectively use a discharge stacker without a deformation locking piece.
[0014]
According to a fourth aspect of the present invention, there is provided the sheet discharging stacker mounting device in the recording apparatus according to any one of the first to third aspects , wherein the deformation locking portion is located at the center in the width direction of the sheet discharging stacker. It is characterized by the following.
According to the present invention, when a force in the pulling-out direction acts on the discharge stacker, the force is applied in a well-balanced manner on the left and right sides, so that the inclination of the discharge stacker can be prevented.
[0015]
According to a fifth aspect of the present invention, there is provided a sheet ejection stacker mounting device in a recording apparatus according to any one of the first to fourth aspects , wherein a plurality of the deformation locking portions are provided. .
ADVANTAGE OF THE INVENTION According to this invention, when a force in the pulling-out direction acts on the discharge stacker, a stronger removal prevention effect is exhibited.
[0017]
According to a sixth aspect of the present invention, there is provided a recording apparatus including the sheet discharging stacker mounting device in the recording apparatus according to any one of the first to fifth aspects . ADVANTAGE OF THE INVENTION According to this invention, the discharge stacker of various colors, patterns, forms, etc. can be easily replaced according to a change of lifestyle, season, and the like.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a printer 1 to which a sheet ejection stacker mounting device in a recording apparatus according to the present invention can be applied.
The printer 1 includes a housing 3 having a substantially dome shape that extends long in the width direction. A paper feed unit 5 is formed on the rear side of the housing 3, and a paper discharge stacker 6 is provided on the front side. A paper section 7 is formed. A window 9 is formed from the upper portion to the front surface of the housing 3, and the window 9 is closed by a transparent curved plastic cover 11 so as to be openable.
[0019]
A paper discharge port 13 is formed in the paper discharge part 7. A shaft projection receiving hole 15 and a guide groove 17 formed in an arc shape around the shaft projection receiving hole 15 are provided at both left and right ends of the paper discharge port 13. Are formed.
[0020]
Further, a holder 19 rotatable in a vertical direction is attached to the paper discharge port 13, and the holder 19 includes a lower holder member 21 and an upper holder member 23 as shown in FIG. As shown in FIG. 4, two first rising guides 25 are formed substantially at the center of the lower holder member 21, and two second rising guides 26 are provided behind the first rising guide 25. Is formed. Two projections, that is, a shaft projection 27 and a guide projection 29 are formed on both left and right ends of the lower holder member 21, respectively. The shaft protrusion 27 serves as a rotation shaft of the holder 19 when inserted into the shaft protrusion receiving hole 15, and the guide protrusion 29 is used when the holder 19 rotates by being received in the guide groove 17. It will be a guide.
[0021]
The paper ejection direction side of the lower holder member 21 extends long, and an extended support portion 31 is formed there. A first holding portion 33 is formed at the center of the extension support portion 31, and a second holding portion 35 is formed at the left and right ends of the extension support portion 31 so as to protrude from the front edge. 6A, the first holding portion 33 has a protrusion 37 and a holding protrusion 39 protruding forward (downstream in the sheet feeding direction) from the protrusion 37. Below the holding projection 39, a holding receiving portion 41 capable of receiving a part of a paper discharge stacker described later is formed. The upstream side of the first holding unit 33 in the sheet feeding direction is formed in a smoothly inclined shape, and the sheet can pass over the first holding unit 33 along the inclined portion. As shown in FIG. 4B, the second holding unit 35 also includes a protrusion 37, a holding protrusion 39, and a holding receiving unit 41 that perform the same functions as those of the first holding unit 33.
At the rear end of the lower holder member 21, two notches 43 are formed. Inside the notch 43, a locking claw 47 protruding above the bottom 45 of the notch 43 is provided. Is formed.
[0022]
On the other hand, as shown in FIG. 5, the upper holder member 23 has substantially the same contour as that of the lower holder member 21 excluding the extension support portion 31, and the lower surface of the lower holder member 21 has the first rising guide. A first guided portion 49 and a second guided portion 50 are formed at positions corresponding to the portion 25 and the second rising guide portion 26, respectively. The first guided portion 49 is composed of two elongated projecting portions, and when the upper holder member 23 is attached to the lower holder member 21, the two first rising guide portions 25 are respectively connected to the first guided portion 49. Are guided between the two projections. Further, the second guided portion 50 is formed from two projecting portions formed at an interval, and when the upper holder member 23 is attached to the lower holder member 21, the outer side of the two second rising guide portions 26. The projection of the second guided portion 50 is guided by the second guide.
[0023]
On the lower surface of the upper holder member 23, support projections 51 having a spacer function for maintaining a distance from the lower holder member 21 are formed at a plurality of locations. Further, a flange portion 52 is formed at the front end of the upper holder member 23. When the upper holder member 23 is attached to the lower holder member 21, it will be described later between the flange portion 52 and the upper surface of the lower holder member 21. A small gap 54 (FIG. 1) is formed so that a discharge stacker can be inserted. In the present invention, such a region before and after the formation of the gap 54 and a region including the extended support portion 31 of the lower holder member 21 substantially contribute to holding the base end side of the sheet discharge stacker 6. The area is defined as a stacker holding unit 57.
[0024]
An opening forming notch 53 is formed in the center of the front end of the upper holder member 23. The opening forming notch 53 forms a receiving opening 55 by being adjacent to the upper surface of the lower holder member 21 when the upper holder member 23 is attached to the lower holder member 21. The receiving opening 55 constitutes a receiving portion in the present invention.
[0025]
At the rear end of the upper holder member 23, a locking projection 56 is formed at a position corresponding to the notch 43 in the lower holder member 21. As shown in FIG. 7, a locking action portion 58 is formed on the locking projection 56, and when the upper holder member 23 is attached to the lower holder member 21, the locking action portion 58 is The holder 21 is locked to the locking claw 47 on the member 21 side so that the integrity of the holder members 21 and 23 can be maintained. On the other hand, a release action portion 60 formed diagonally is formed outside the locking projection 56, and a driver or the like is inserted between the release action portion 60 and the bottom 45 of the notch 43. By pushing up the locking projection 56, the upper holder member 23 can be easily separated from the lower holder member 21.
[0026]
Next, the discharge stacker 6 that can be detachably held in the holder 19 will be described with reference to FIGS. As shown in FIG. 3, the base end side of the sheet discharge stacker 6 is supported by the stacker holding portion 57 between the upper and lower holder members 23 and 21.
The paper discharge stacker 6 is formed by bending a single flexible plastic sheet 59, and the upper surface of the plastic sheet 59 is a paper discharge for stacking the paper discharged from the paper discharge port 13. The receiving surface 61 is provided.
[0027]
Bends 63 are formed at both ends in the paper width direction of the paper discharge receiving surface 61. The bent portion 63 is formed by bending the plastic sheet 59 upward, but may be formed by bending downward, bending obliquely upward or downward, or rounding. The bent portion 63 can be bent only when the discharge stacker 6 is used, and can be flush with the discharge receiving surface 61 when the discharge stacker 6 is stored.
[0028]
By the way, by bending the bent portion 63 when the discharge stacker is used, it is easy to remove the discharge receiving surface 61 which is curved when the discharge stacker is stored, and to form and maintain a flat surface for placing the paper. When the sheets are stacked on the sheet discharge stacker 6, it is possible to more reliably prevent the discharge stacker 6 from bending in the sheet discharge direction due to the weight of the sheet. Further, there is an advantage that when the paper discharge stacker is changed from the storage state to the paper discharge stacker use state, the paper discharge stacker 6 can be easily and quickly used by simply bending both ends of the plastic sheet 59. .
[0029]
Lock holes 65 are formed at both left and right ends on the leading end side of the paper discharge stacker 6. The lock holes 65 are formed at both ends of the upper surface of the housing 3 when the paper discharge stacker 6 is stored. By being locked to 67, the stored state can be maintained.
[0030]
As shown in FIG. 8, the locking hole 65 is in the shape of a darma, and the locking projection 67 has a slit 69 formed on the lower side. The locking hole 65 is received by the locking projection 67 from the larger hole of the Dharma shape, and the discharge stacker 6 slightly deforms naturally due to the shape return force of the discharge stacker 6 so that the locking projection 67 is formed in the slit 69 of the locking projection 67. The structure is such that a small Dharma-shaped hole enters and cannot be removed in a natural state.
[0031]
Further, in this embodiment, the plastic sheet 59 constituting the paper discharge stacker 6 is transparent in blue, and the housing 3 can be seen through the plastic sheet 59 when the paper discharge stacker 6 is stored. The color of the plastic sheet 59 can be variously selected, and can be selected from transparent, translucent, and opaque. The color and pattern are taken into consideration in consideration of the fusion of the color and pattern of the plastic sheet 59 with the housing 3. Etc. can also be selected. Incidentally, the paper output stacker mounting apparatus of the present invention has an advantage that such various paper output stackers 6 can be easily replaced according to a change in lifestyle, a change in season, or the like, by a configuration described later.
[0032]
At the base end side (upstream side in the paper discharging direction) of the paper discharge stacker 6, two notched concave portions 64 are provided at positions corresponding to the first rising guide portions 25 so as to avoid collision with the guide portions. Is formed. A central notch 71 is formed in a region sandwiched between these two notch recesses 64, and the leading end of the central notch 71 is inserted into the holding receiving portion 41 of the first holding portion 33. The side 66 to be held is formed. Receiving holes 68 are formed near the left and right ends of the paper discharge stacker 6, and a held side 70 that can enter the holding and receiving portion 41 of the second holding portion 35 is formed at the tip of the receiving hole 68. ing.
[0033]
Further, a deformation locking piece 75 is formed on the base end side in the center notch 71. The deformation locking piece 75 always protrudes upward from the surface of the paper discharge stacker 6 and is elastically deformable so as to be rotatable around a rotation side 73 located on the base end side of the central cutout 71. . A push-in piece 76 is formed on the distal end side of the deformation-locking piece 75 so as to protrude forward, and a locking shoulder 78 that functions as a removal restricting section is formed on both sides of the base of the push-in piece 76. . The width dimension of the pushing piece 76 is smaller than the width dimension of the receiving opening 55, and the width dimension of the deformed locking portion including the locking shoulders 78 on both sides thereof is set larger than the width dimension of the receiving opening 55. .
[0034]
Next, the relationship between the deformation locking piece 75 and the receiving opening 55 in the holder 19 will be described. The height of the receiving opening 55 is set to be smaller than the distance between the surface of the paper discharge stacker 6 in the natural state and the most protruding portion of the deformation locking piece 75 (the tip of the deformation locking portion 75). As a result, when the base end side of the paper discharge stacker 6 is pushed into the gap 54 of the holder 19, the deformable locking piece 75 contacts the upper end of the receiving opening 55, and enters the receiving opening 55 in a state of being elastically deformed downward. A snap fit can be made in the manner of entering.
[0035]
The delivery stacker mounting device of the present invention has the above-described configuration. Hereinafter, the assembly process of the upper and lower holder members 23 and 21 will be briefly described, and the delivery stacker 6 will be attached to the stacker holding portion of the holder 19. The operation at the time of attaching to 57 will be described.
[0036]
As shown in FIG. 3, the upper holder member 23 is disposed on the lower holder member 21, and the upper holder member 23 is pushed backward, so that the locking claws 47 of the lower holder member 21 The locking action portion 58 of the locking projection 56 is locked, and the upper and lower holder members 23 and 21 are integrated to complete the holder 19. As a result, a gap 54 is formed between the front end of the upper holder member 23 and the upper surface of the lower holder member 21 for inserting the paper discharge stacker 6, and a receiving opening 55 for inserting the deformation locking portion 75 is formed. It is formed. The holder 19 formed in this way is attached to the paper output unit 7 of the printer 1.
[0037]
Next, with the base end side of the sheet discharge stacker 6 facing the gap 54, the deformation locking portion 75 is aligned with the position of the receiving opening 55. When the discharge stacker 6 is pushed into the gap 54 in this state, as shown in FIG. 9 (a), the deformation locking portion 75 comes into contact with the upper end of the receiving opening 55, and the deformation locking portion 75 is pushed further. It travels inside the receiving opening 55 while being elastically deformed downward.
[0038]
As shown in FIG. 9 (b), when the ejection stacker 6 is pushed to a position where the pushing piece 76 comes to the position of the receiving opening 55, the pushing piece 76 narrower than the width of the receiving opening 55 becomes inside the receiving opening 55. In order to elastically return upward so as to enter, the locking shoulder 78 is locked to the inner side wall of the receiving opening 55. Further, when the discharge stacker 6 is pushed in, the held sides 66 and 70 enter the holding and receiving portions 41 of the first holding portion 33 and the second holding portion 35, so that the discharge stacker 6 can be further inserted. At the same time, the paper discharge stacker 6 is prevented from rolling up. When the locking shoulder 78 is locked on the inner side wall of the receiving opening 55, the pushing piece 76 protrudes forward from the flange 52 as shown in FIG. 9B. It has become.
[0039]
Next, when it is desired to replace the discharge stacker 6 with another one having a different color or pattern, the pushing piece 76 is pushed downward to release the locking state of the locking shoulder 78, and in this state, the discharge stacker 6 is released. 6 may be pulled out to the front side and removed, and a new paper discharge stacker 6 may be attached in the same manner as described above.
[0040]
As described above, one embodiment of the paper ejection stacker mounting device of the present invention has been described. However, in the present invention, the deformation locking portion 75 can take various modifications. For example, as shown in FIG. 10A, a deformable locking piece including a base 79 and a deformable portion 81 elastically deformable with respect to the base 79 and having a structure similar to that of the above-described embodiment on the distal end side. 75 may be prepared, and the base 79 may be attached to the upper surface (or the lower surface) of the discharge stacker 6. In such an embodiment, the deformation locking portion 75 can be easily formed without processing the paper discharge stacker 6 itself.
[0041]
Also, as shown in FIG. 10B, the upper surface of the base 79 of the deformable locking piece 75 as shown in FIG. 10A is attached to the lower surface of the discharge stacker 6, and the deforming portion 81 is attached to the discharge stacker 6. You may make it extend upward through the opening 83 formed.
[0042]
Further, as shown in FIG. 10 (c), a flange 85 having a receiving opening 55 is also formed in the lower holder member 21, and a deformable locking piece 75 as shown in FIG. May be applied to the upper and lower surfaces of each of the deformable locking pieces 75 so that the locking shoulder portions 78 of the deformable locking pieces 75 can contact the upper and lower surfaces inside the receiving opening 55.
[0043]
Further, as shown in FIG. 10 (d), instead of forming the locking shoulder 78, a locking recess 87 which can be locked to the lower end of the flange 52 at the front end side of the deformable locking piece 75 is removed. The paper discharge stacker 6 can be formed as a regulating portion so that the paper discharge stacker 6 does not easily come off.
[0044]
Further, in the above embodiment, the deformation locking piece 75 is provided only at one place, but it may be provided at a plurality of places in the width direction of the discharge stacker 6 so as to function simultaneously. Further, the deformation locking portion may use the elastic force of the constituent material of the sheet discharge stacker 6 like the deformation locking piece 75, or may combine other elastic materials to realize a snap fit structure.
[0045]
【The invention's effect】
According to the present invention, various paper discharge stackers can be easily replaced without disassembling the holder. Therefore, the discharge stacker of various colors, patterns, forms, and the like can be easily replaced according to changes in lifestyle, season, and the like.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a state in which a paper discharge stacker is used in a printer to which the present invention can be applied, and is partially enlarged.
FIG. 2 is a perspective view showing a state in which a paper discharge stacker is stored in a printer to which the present invention can be applied.
FIG. 3 is an exploded perspective view showing a paper discharge stacker and a holder to which the present invention can be applied.
FIG. 4 is a plan view of a lower holder member.
FIG. 5 is a rear view of the upper holder member.
6A is a plan view showing a first holding unit, FIG. 6B is a plan view showing a second holding unit, FIG. 6C is a side sectional view showing the first holding unit, and FIG. It is a sectional side view which shows a holding part.
FIG. 7 is a side sectional view showing the vicinity of a cutout portion of a lower holder member and a locking projection of an upper holder member.
FIG. 8 is a plan view of a paper discharge stacker.
9A and 9B are side cross-sectional views illustrating a relationship between a receiving opening and a deformable locking piece, wherein FIG. 9A illustrates a state in which the discharge stacker is being pushed in, and FIG. 9B illustrates a locked state of the discharge stacker. Is shown.
FIGS. 10A to 10D are side cross-sectional views showing other embodiments of the deformation locking pieces.
[Explanation of symbols]
6 Discharge Stacker 19 Holder 21 Lower Holder Member 23 Upper Holder Member 25 First Rising Guide 26 Second Rising Guide 37 Projection 39 Holding Protrusion 41 Holding Receiving Part 47 Locking Claw 49 First Guided Part 50 Second guided portion 53 Opening notch 54 Gap 55 Receiving opening 56 Locking protrusion 57 Stacker holding portion 58 Locking action portion 60 Release action portion 61 Discharge receiving surface 63 Bending portion 64 Cutout recesses 66, 70 Held side 68 Receiving hole 71 Center notch 73 Rotating side 75 Deformation locking piece 76 Push-in piece 78 Locking shoulder 79 Base 81 Deformation part 83 Opening 85 Flange part 87 Locking recess

Claims (6)

A discharge stacker including a discharge receiving surface that can be bent and deformed, and a holder including a stacker holding unit that holds a base end side of the discharge stacker;
An elastically deformable deformation locking portion is provided on the base end side of the discharge stacker,
In the stacker holding portion, a receiving portion in which the deformation locking portion can be snap-fitted is formed,
A receiving portion of the holder is formed by a receiving opening having a height smaller than a distance between a surface of the discharge stacker and a most protruding portion of the deformation locking portion in a natural state;
A push piece smaller than the width of the receiving opening is formed on the tip side of the deformation locking part, and a locking piece that is larger than the width of the receiving opening and functions as a removal restricting part on both sides of the base of the push piece. Shoulders are formed,
The holder has a holding portion, and the discharge stacker has a held side held by the holding portion.
In a state where the discharge stacker is attached to the holder, the locking shoulder locks the inner side wall of the receiving opening to lock the discharge stacker to the holder. Since the held side is held by the holding portion, the posture of the paper discharge stacker is restricted, and the paper discharge stacker is prevented from being inserted at a predetermined mounting position or more. It will be in a state protruding forward from the entrance of the opening,
By deforming the deformable locking portion via the pushing piece, the locking of the locking shoulder is released, and the discharge stacker can be removed from the holder. Paper stacker mounting device. 2. The device according to claim 1, wherein the deformation locking portion is configured to be elastically deformable so as to be rotatable around a rotation side located on the base end side by using a partial area on the base end side of the discharge stacker. The deformation locking piece has a tendency to always protrude upward or downward from the surface of the sheet discharge stacker, and the deformation locking piece is snap-fitted to a receiving portion at a tip end of the deformation locking piece. A sheet discharge stacker mounting device for the recording apparatus, wherein a detachment restricting part is formed to be locked to a part of the receiving part when the sheet discharge stacker is removed from the holder. 2. The deformable locking portion according to claim 1, wherein the deformable locking portion is formed by a deformable locking piece attached to one of upper and lower surfaces or both upper and lower surfaces of a region on the base end side of the discharge stacker. , Can be elastically deformed so as to be rotatable around a rotation side located on the base end side, has a tendency to always project upward or downward from the surface of the paper discharge stacker, and has a distal end side of the deformation locking piece. Wherein a detachment restricting portion is formed which locks on a part of the receiving portion when the deformable locking piece is snap-fitted into the receiving portion and restricts removal of the discharge stacker from the holder. A paper ejection stacker mounting device in a recording apparatus. 4. The discharge stacker mounting device according to claim 1 , wherein the deformation locking portion is positioned at a center of the discharge stacker in a width direction. 5. 5. The sheet ejection stacker mounting device according to claim 1 , wherein a plurality of the deformation locking portions are provided. 6. A recording apparatus comprising the sheet ejection stacker mounting device in the recording apparatus according to claim 1 .

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