The present application claims priority from Japanese Patent Application No. 2016-016634 filed on Jan. 29, 2016 the disclosure of which is incorporated herein by reference in its entirety.
Field of the Invention
The present teaching relates to a conveying apparatus configured to convey a sheet, and an image recording apparatus including the conveying apparatus and configured to record an image on a sheet conveyed by the conveyance apparatus.
Description of the Related Art
Many image recording apparatuses, such as printers, etc., each including a conveying apparatus configured to convey a sheet, are provided with a feed tray which supports the sheet fed to such an image recording apparatus. The feed tray is insertable and removable with respect to the image recording apparatus. The feed tray is removed from or detached from the image recording apparatus when sheets are supplemented (replenished) or changed.
Further, the image recording apparatuses adopt a configuration in which the feed tray can be maintained in a state that the feed tray is drawn midway with respect to the image recording apparatus, to thereby allow the supplement or change of the sheets can be performed without removing the feed tray completely from the image recording apparatus. Furthermore, the image recording apparatuses also adopt a configuration in which the feed tray can be maintained in a state of being installed in the image recording apparatus, to thereby prevent the feed tray installed in the image recording apparatus from inadvertently or unintentionally being removed or detached from the image recording apparatus. Such an image recording apparatus is provided with a mechanism configured to maintain or hold the feed tray in the state that the feed tray is drawn midway with respect to the image recording apparatus and a mechanism configured to maintain the feed tray in the state that the feed tray is installed in the image recording apparatus. Moreover, in such an image recording apparatus, the holding of the feed tray is configured to be releasable or disengageable so as to allow the feed tray to be removed from the image recording apparatus.
Conventionally, there is known an image recording apparatus wherein a forward or drawn end portion, of the feed tray which is drawn midway from the image recording apparatus, is lifted upward to thereby release the above-described holding and to allow the feed tray to be removed from the image recording apparatus.
The above-described image recording apparatus requires, in the inside of the image recording apparatus, a space for arranging or locating the lifted feed tray therein. However, the provision of such a space results in an increased size of the image recording apparatus.
As a means for providing the above-described space while maintaining the size of the image recording apparatus as it is, it is conceived to decrease the thickness in the up/down direction of the feed tray. The thinning of the thickness of the feed tray, however, results in the lowered rigidity of the feed tray.
The present teaching is made in view of the above problem, and an object of the present teaching is to provide a configuration capable of maintaining at least a portion of a feed tray in an apparatus in which the feed tray is installed, while suppressing the size of the apparatus from becoming large and maintaining the rigidity of the feed tray to be high.
According to an aspect of the present teaching, there is provided a conveying apparatus configured to convey a sheet, including:
a main body formed with a conveyance path via which the sheet is conveyed;
a first feed tray which is installable in the main body at a first position by being inserted with respect to (into) the main body toward one side in a first direction, crossing an up/down direction, through an opening formed in the main body, which is removable with respect to (from) the main body toward the other side in the first direction, and which is configured to support the sheet to be fed to the conveyance path;
a discharge tray which is arranged at a location above the first feed tray in a state of being located at the first position and which is configured to support the sheet discharged from the conveyance path; and
a first regulating section configured to perform regulation for regulating movement, toward the other side in the first direction, of the first feed tray in a state of being located at a second position,
wherein the second position is a position same as the first position or a position away from the first position toward the other side in the first direction;
the first regulating section is configured to release the regulation, in a case that the first feed tray, in the state of being located at the second position, is moved upwardly by a first predetermined moving amount;
a spacing distance in the up/down direction between the first feed tray and the discharge tray is shorter than the first predetermined moving amount; and
the discharge tray is configured to move upwardly by being contacted with the first feed tray in a case that the first feed tray is moved upwardly.
According to this configuration, in a case that the regulation by the first regulating section is released, the first feed tray can move to a space at which the discharge tray has been present previously. Namely, according to the configuration, the space which is configured to allow the discharge tray to be present therein and the space which is configured to allow the first feed tray to move thereinto can be made common. With this configuration, it is possible to suppress the size of the conveying apparatus from becoming large. Further, also with this configuration, there is no need to reduce the thickness in the up/down direction of the first feed tray, and thus the rigidity of the first feed tray can be maintained to be high.
According to the conveying apparatus according to the present teaching, it is possible to maintain the first feed tray at the second position while suppressing the size of the conveying apparatus from becoming large and maintaining the rigidity of the first feed tray to be high.
In the following, an embodiment of the present teaching will be explained. It is needless to say that the embodiment to be explained below is merely an example of the present teaching, and that it is possible to appropriately change the embodiment of the present teaching without departing from the gist and scope of the present teaching. In the following explanation, an up/down direction 7 is defined with a state that a multi-function peripheral 10 is usably placed (usable state; state depicted in
Further, in the following explanation, in a case that the configurations of a first feed tray 21 and a second feed tray 22 are explained, the respective directions as described above are each indicated, provided that the first feed tray 21 and the second feed tray 22 are each in a state of being installed in a printer casing 14 of the multi-function peripheral 10.
<Overall Structure of Multi-Function Peripheral 10>
As depicted in
Although the scanner section 11 is configured as a so-called flatbed scanner, any detailed explanation of the internal configuration of the scanner section 11 will be omitted in the following explanation.
As depicted in
As depicted in
As depicted in
The conveying roller pair 63, the discharging roller pair 66, and the recording section 24 are arranged inside the printer casing 14.
As depicted in
Further, the first feed tray 21 and the second feed tray 22 are removed (detached) from the printer casing 14 via the opening 13, by being moved via the opening 13 frontwardly (an example of the other side in the first direction, and the other side in the second direction) with respect to the printer casing 14. The discharge tray 20 is supported by the printer casing 14. As will be described later on, the discharge tray 20 is removable (detachable) from the printer casing 14 by in a case that the discharge tray 20 is rotated by a predetermined rotating amount.
[First Feeding Section 17 and Second Feeding Section 18]
As depicted in
The feeding roller 25 is rotated by being imparted with a driving force from a feeding motor (not depicted in the drawings) via the driving force transmitting mechanism which is constructed of a plurality of gears meshing with each other. With this, an uppermost sheet 15, among the sheets 15 supported by a bottom plate 74 of the first feed tray 21 is picked up by the feeding roller 25 which is rotating, and is conveyed rearwardly. Note that in a case that the number of the sheet 15 supported by the bottom plate 74 is 1 (one) sheet, the feeding roller 25 picks up the one sheet 15 and feeds the one sheet 15 rearwardly. The conveyed sheet 15 is guided by an inclined plate 47 provided on the printer casing 14 and is thus fed to the first conveyance path 111. Note that the driving force transmitting mechanism is not limited to the aspect constructed of the plurality of gears meshing with each other, and may be, for example, a belt suspended between the shaft 27 and the shaft of the feeding roller 25.
The second feeding section 18 is arranged at a location below the first feeding section 17. The second feeding section 18 has a configuration similar to that of the first feeding section 17, and includes a feeding roller 125, a feeding arm 126, a driving force transmitting mechanism (not depicted in the drawings), and a shaft 127. By the rotation of the feeding roller 125, an uppermost sheet 15, among the sheets 15 supported by a bottom plate 72 of the second feed tray 22 is picked up by the feeding roller 125 which is rotating, and is conveyed rearwardly. Note that in a case that the number of the sheet 15 supported by the bottom plate 72 is 1 (one) sheet, the feeding roller 125 picks up the one sheet 15 and feeds the one sheet 15 rearwardly. The conveyed sheet 15 is guided by an inclined plate 42 provided on the printer casing 14 and is thus fed to the second conveyance path 112. The second feeding section 18 has a configuration similar to that of the first feeding section 17.
[First Conveyance Path 111 and Second Conveyance Path 112]
The first conveyance path 111 is a path via which the sheet 15 is conveyed. As depicted in
The second conveyance path 112 is a path via which the sheet 15 is conveyed. As depicted in
<Conveying Roller Pair 63 and Discharging Roller Pair 66>
As depicted in
[Recording Section 24]
As depicted in
<Printer Casing 14>
As depicted in
As depicted in
As depicted in
As depicted in
The upper portion 45 is arranged so as to link or connect a front upper portion of the right portion 44 and a front upper portion of the left portion 49. The upper portion 45 defines an upper portion of the internal space 121.
As depicted in
As depicted in
Each of the supporting portions 51 is provided to extend in the front/rear direction 8. The supporting portions 51 support the discharge tray 20 to be movable in the front/rear direction 8, and to be rotatable (to be described later on). The supporting portion 51 projected from the side surface 48 supports a right end portion of the discharge tray 20 from therebelow. The supporting portion 51 projected from the side surface 50 supports a left end portion of the discharge tray 20 from therebelow. The supporting portions 51 do not support a rear portion of the discharge tray 20.
Each of the contacting portions 82 is arranged at a location rearward and upward with respect to one of the supporting portions 51 corresponding thereto. The contacting portions 82 make contact with the discharge tray 20 from thereabove. In a state that the discharge tray 20 is installed in the printer casing 14, each of the contacting portions 82 is engaged with one of projecting portions 81 provided on an upper surface 30 of the discharge tray 20, as depicted in
As depicted in
As depicted in
The contacting portion 83 is formed as contacting portions 83 provided respectively on left and right end portions in a front end portion of the bottom portion 43. Each of the contacting portions 83 is fitted into a recessed portion (not depicted in the drawings) formed in one of the left and right end portions in the front end portion of the bottom portion 43. Each of the contacting portions 83 is formed of a material of which modulus of elasticity is smaller than that of the bottom portion 43. The contacting portions 83 are projected upwardly from the bottom portion 43. The upper surface of each of the contacting portions 83 is warped or bent so as to project upwardly. In a process in which the second feed tray 22 is inserted to the printer casing 14, each of projecting portions 57 provided on the second feed tray 22 (to be described later on) makes contact with a surface 83A, of one of the contacting portions 83, which faces frontward, from the front side of the surface 83A. On the other hand, in a process in which the second feed tray 22 is removed from the printer casing 14, each of projecting portions 57 makes contact with a surface 83B, of one of the contacting portions 83, which faces rearward, from the rear side of the surface 83A, as depicted in
The recessed portion 87 is a recess formed in the upper surface of the bottom portion 43. The recessed portion 87 is positioned on the rear side of the contacting portion 83. The recessed portion 87 is provided to span across the right end portion to the left end portion of the bottom portion 43. Namely, the length in the left/right direction 9 of the recessed portion 87 is longer than the length in the left/right direction 9 of the second feed tray 22. In a case that the second feed tray 22 is located at a fourth position (to be described later on; the position of the second feed tray 22 depicted in
<First Feed Tray 21 and Second Feed Tray 22>
Each of the first feed tray 21 and the second feed tray 22 is integrally formed of a resin such as polystyrene (PS). In this embodiment, each of the first feed tray 21 and the second feed tray 22 is integrally formed of a High Impact Polystyrene (HIPS). Note that the above described resins forming the first and second feed trays 21 and 22, respectively, are merely examples; it is allowable that each of the first and second feed trays 21 and 22 is formed of a resin which is different from the High Impact Polystyrene. Alternatively, it is allowable that the first feed tray 21 or the second feed tray 22 is not formed integrally.
As depicted in
As depicted in
As depicted in
As depicted in
[The Discharge Tray 20]
As shown in
Frontward movement of the discharge tray 20 is regulated by engagement of the projecting portions 81 with the contacting portions 82. However, the discharge tray 20 is rotatable, as will be described later on. Further, in a case that the discharge tray 20 is rotated by an amount not less than a predetermined rotating amount, this rotation of the discharge tray 20 causes the projecting portions 81 to move to a location below with respect to (lower than) the contacting portions 82, thus no longer regulating the forward movement of the discharge tray 20, thereby causing the discharge tray 20 to be movable frontwardly (see
The configuration allowing the discharge tray 20 to be rotatable is as follows. Namely, in a state that the discharge tray 20 is supported by the supporting portions 51 of the printer casing 14, the discharge tray 20 is rotatable in a direction indicated by an arrow 102 in
<First Regulating Section 91 and Second Regulating Section 92>
In a case that the first feed tray 21 located at the first position (the position of the first feed tray 21 depicted in
The first regulating section 91 is provided with the projecting portions 77 provided on the first feed tray 21 and the contacting portions 84 provided on the supporting plate 46 of the printer casing 14. As depicted in
In a case that the second feed tray 22 located at the third position (the position of the second feed tray 22 depicted in
The second regulating section 92 is provided with the projecting portions 57 provided on the second feed tray 22 and the contacting portions 83 provided on the bottom portion 43 of the printer casing 14. As depicted in
<Removing Operation and Inserting Operation of First Feed Tray 21 and Second Feed Tray 22>
In the following, an explanation will be given about a removing operation and an inserting operation for removing and inserting the first and second feed trays 21 and 22 with respect to the printer casing 14, with reference to
At first, the removing operation for removing the first feed tray 21 from the printer casing 14 will be explained. The first feed tray 21 in the state of being located at the first position (see
In a case that a front portion of the first feed tray 21 in this state is lifted upwardly by a user, the first feed tray 21 is rotated in a direction indicated by an arrow 103 about a rear end portion 21A of a portion, of the first feed tray 21, making contact with the supporting plate 46 as the fulcrum, such that another portion, of the first feed tray 21, which is located away from the fulcrum in the front direction is moved upwardly. With this rotation, the projecting portion 77 is moved upwardly.
In a case that the first feed tray 21 is moved upwardly by an amount which is not less than a first predetermined moving amount by the rotation of the first feed tray 21 in the direction of the arrow 103, then as depicted in
Here, the first predetermined moving amount is an upward moving amount, among upward moving amounts of an internally located portion included in the first feed tray 21 in the state of being located at the second position and located in the internal space 121, by which the internally located portion is allowed to reach a maximally moving location (in this embodiment, a front end portion of the internally located portion). The first predetermined moving amount is longer than the spacing distance in the up/down direction 7 between the first feed tray 21 and the discharge tray 20 in the state depicted in
Here, in a case that the first feed tray 21 is moved upwardly by the first predetermined moving amount from the state depicted in
Next, the inserting operation for inserting the first feed tray 21 to the printer casing 14 will be explained. The first feed tray 21 is inserted rearwardly with respect to the printer casing 14, while being supported by the supporting plate 46. Then, each of the projecting portions 77 makes contact with one of the contacting portions 84 from the front side thereof. With this, the insertion of the first feed tray 21 to the printer casing 14 is regulated. In this situation, by rotating the first feed tray 21 in the direction of the arrow 103 (see
Next, the removing operation for removing the second feed tray 22 from the printer casing 14 will be explained. The second feed tray 22 in the state of being located at the third position (see
In a case that a front portion of the second feed tray 22 in this state is lifted upwardly by the user, the second feed tray 22 is rotated in a direction indicated by an arrow 104 about a portion 22A, of the second feed tray 22, making contact with a portion, of the bottom portion 43, which is located away from the recess 87 in the front direction as the fulcrum. In this situation, another portion of the second feed tray 22 which is located away from the fulcrum in the rear direction is moved downwardly such that the another portion is accommodated in the recess 87, as depicted in
By the upward movement of the second feed tray 22 by the second predetermined moving amount, the second feed tray 22 is inclined with respect to the front/rear direction 8. By being inclined with respect to the front/rear direction 8, the second feed tray 22 is allowed to be movable in an inclination direction 105 (see
Next, the inserting operation for inserting the second feed tray 22 to the printer casing 14 will be explained. The second feed tray 22 is inserted rearwardly with respect to the printer casing 14, while being supported by the bottom portion 43. Then, each of the projecting portions 57 makes contact with one of the contacting portions 83 from the front side thereof. With this, the insertion of the second feed tray 22 to the printer casing 14 is regulated. In this situation, by rotating the second feed tray 22 in the direction of the arrow 104 (see
According to the embodiment, in a case that the regulation by the first regulating section 91 is released, the first feed tray 21 can move to a space at which the discharge tray 20 has been present previously. Namely, according to the embodiment, the space which is configured to allow the discharge tray 20 to be present therein and the space which is configured to allow the first feed tray 21 to move thereinto can be made common. With this configuration, it is possible to suppress the size of the multi-function peripheral 10 from becoming large. Further, also with this configuration, there is no need to reduce the thickness in the up/down direction 7 of the first feed tray 21, and thus the rigidity of the first feed tray 21 can be maintained to be high.
Further, according to the embodiment, the rotating amount by which the discharge tray 20 is rotated by being contacted by the first feed tray 21, in the case that the first feed tray 21 which has been in the state of being located at the second position is moved upwardly by the first predetermined moving amount, is less than the predetermined rotating amount which is required for removing the discharge tray 20 from the printer casing 14. With this, it is possible to prevent the discharge tray 20 from being removed (detached) from the printer casing 14 when the first feed tray 21 is being removed from the printer casing 14.
Furthermore, according to the embodiment, the first feed tray 21 is movable into the space in which the discharge tray 20 has been previously present. Accordingly, it is possible to allow the pair of first side plates 75 of the first feed tray 21 to have a height same as that of the front plate 76 of the first feed tray 21. By doing so, the rigidity of the first feed tray 21 can be maintained to be high.
Moreover, according to the embodiment, in a case that the regulation by the second regulating section 92 is released, the rear end portion of the second feed tray 22 is moved downwardly and is accommodated in the recessed portion 87. This regulates the upward movement of the portion, of the second feed tray 22, which is located in front of the fulcrum. As a result, the spacing distance in the up/down direction 7 of the second feed tray 22 and the supporting plate 46 can be made small. With the above-described configuration, it is possible to suppress the size of the multi-function peripheral 10 from becoming large. In addition, there is no need to thin the thickness in the up/down direction 7 of the second feed tray 22, and thus the rigidity of the second feed tray 22 can be maintained to be high.
Further, according to the embodiment, a portion of the second feed tray 22 can be accommodated in the recessed portion 87. Accordingly, it is possible to allow the pair of side plates 55 of the second feed tray 22 to have a height same as that of the front plate 56 of the second feed tray 22. By doing so, the rigidity of the second feed tray 22 can be maintained to be high.
Furthermore, according to the embodiment, the first feed tray 21 and the second feed tray 22 are both in a state of being accommodated inside the printer casing 14 in a state that the first and second feed trays 21 and 22 are installed in the printer casing 14. Accordingly, the movable range of the first and second feed trays 21 and 22 is restricted to a limited space inside the printer casing 14. However, owing to the configuration in the embodiment as described above, the limited moving space for the first and second feed trays 21 and 22 is utilized effectively.
<Modification>
In the above-described embodiment, the first regulating section 91 is provided with the projecting portions 77 and the contacting portions 84, and the second regulating section 92 is provided with the projecting portions 57 and the contacting portions 83. The configurations of the first and second regulating sections 91 and 92 are, however, not limited to the configuration of the above-described embodiment.
For example, as depicted in
In a case that the first feed tray 21, which is moving frontwardly from the first position as indicated in
In the embodiment, although the first feed tray 21 is moved such that the rotation of the first feed tray 21 releases the regulation brought about by the first regulating section 91, the first feed tray 21 may be moved in a manner different from the rotation. For example, the first feed tray 21 may slide in the up/down direction 7, instead of rotating.
In the embodiment, in the case that the first feed tray 21 is located at the first position, the projecting portions 77 are away from the contacting portions 84, respectively, and in the case that the second feed tray 22 is located at the third position, the projecting portions 57 are away from the contacting portions 83, respectively. It is allowable, however, that in the case that the first feed tray 21 is located at the first position, each of the projecting portions 77 may make contact with one of the contacting portions 84 from the rear side thereof, and in the case that the second feed tray 21 is located at the third position, each of the projecting portions 57 may make contact with one of the contacting portions 83 from the rear side thereof. In other words, the first regulating section 91 may regulate the forward movement of the first feed tray 21 in the state of being located at the first position, and the second regulating section 92 may regulate the forward movement of the second feed tray 22 in the state of being located at the third position. Namely, the first position and the second position may be a same position, and that the third position and the fourth position may be a same position.
In the embodiment, each of the first feed tray 21 and the second feed tray 22 is moved in the front/rear direction 8. It is allowable, however, that the moving directions of the first and second feed trays 21 and 22 may be different from each other. For example, the first feed tray 21 may be moved in an inclined direction which is inclined relative to the front/rear direction 8.
In the embodiment, the conveying apparatus is provided with the two feed trays (the first feed tray 21 and the second feed tray 22). However, the number of the tray provided on the conveying apparatus is not limited to 2 (two). For example, the conveying apparatus may be provided with only the first feed tray 21.
In the embodiment, the front surface 43A of the bottom portion 43, the front surface 46A of the supporting plate 46, the front surface 76A of the front plate 76 of the first feed tray 21 in the state of being located at the first position, and the front surface 56A of the front plate 56 of the second feed tray 22 in the state of being located at the third position are in a same surface with the front surface 19 of the multi-peripheral 10. Namely, the four front surfaces that are the front surface 43A, the front surface 46A, the front surface 76A and the front surface 56A are in the same surface with one another. It is allowable, however, that the front surface 76A and the front surface 46A are in a same surface with each other, and that the front surface 56A and the front surface 43A are in a same surface with each other. Namely, it is allowable that the front surfaces 76A and 46A are not in a same surface with the front surfaces 56A and 43A.
In the above embodiment, the conveying apparatus is provided on the printer section 12 which is an example of the image recording apparatus. It is allowable, however, that the conveying apparatus is provided on another portion different from the printer section 12. For example, the conveying apparatus may be provided on the scanner section 11. In this case, the first and second feed trays 21 and 22 support a manuscript (original) with an image thereon which is to be read by the scanner section 11. Further, the discharge tray 20 supports the discharged manuscript of which image has been read by the scanner section 11 and is discharged from the scanner section 11.
Number | Date | Country | Kind |
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2016-016634 | Jan 2016 | JP | national |