The present invention relates to an accommodation system including an accommodation unit that accommodates a recording material.
An image formation apparatus discussed in Japanese Patent Publication Laid-Open No. 2016-108080 includes an accommodation unit capable of accommodating a recording material and a connection unit connected to a lower portion of the accommodation unit, as an option of the image formation apparatus. The accommodation unit includes an accommodation portion that accommodates the recording material and a housing that supports the accommodation portion, and the accommodation portion can be pulled out from and inserted into the housing.
In the image formation apparatus, it is desirable that the accommodation portion is guided in such a manner that the insertion of the accommodation portion is not hindered when the accommodation portion hangs down due to a self-weight at the time of insertion of the accommodation portion.
Accordingly, the present invention is directed to guiding the accommodation portion in such a manner that the insertion of the accommodation portion is not hindered in the process of inserting the accommodation portion into the housing.
One embodiment of the present invention is as follows.
According to an aspect of the present invention, an accommodation system includes an accommodation unit configured to accommodate a recording material and a connection unit configured to be connected to a lower portion of the accommodation unit. The accommodation unit includes a housing, and an accommodation portion configured to accommodate the recording material and to be movable between a first position where the accommodation portion is pulled out from the housing and a second position where the accommodation portion is inserted into the housing. The connection unit includes a guide portion configured to guide a movement of the accommodation portion. In a process of the accommodation portion moving in a first direction where the accommodation portion moves from the first position to the second position, the accommodation portion comes into contact with the guide portion and is guided upward.
Further features of the present invention will become apparent from the following description of exemplary embodiments with reference to the attached drawings.
Hereinafter, a exemplary embodiment of the present invention will be described in detail, by way of example, with reference to the accompanying drawings. Note that, the dimensions, materials, shapes, relative arrangements thereof, and the like of the components described in the following exemplary embodiments should be appropriately changed depending on the configuration of the apparatus to which the present invention is applied and various conditions, and the scope of the present invention is not limited to them alone.
In the following description and the drawings, a vertical direction in a case where an image formation unit 1 is installed on a horizontal plane is defined as a Z direction. A direction intersecting with the Z direction, that is, a pull-out direction and an insertion direction of an accommodation portion 30 described below is defined as an X direction. A direction intersecting with both the Z direction and the X direction is defined as a Y direction.
The axial direction of a photosensitive drum 51 described below is the Y direction. The X and Y directions are preferably horizontal. Further, the X direction, the Y direction, and the Z direction are preferably orthogonal to each other. In addition, as necessary, directions of arrows X, Y, and Z illustrated in each drawing are respectively referred to as a +X side, a +Y side, and a +Z side, and opposite sides thereof are respectively referred to as a −X side, a −Y side, and a −Z side. In the following description, the +X direction may be referred to as a first direction, but the +X direction and the first direction are the same direction.
The first direction is also a direction from a first position to a second position, which will be described below. In the following description, the Y direction may be referred to as a second direction.
A configuration of the image formation unit 1 will be described with reference to
The image formation apparatus 1a is a monochrome laser beam printer that forms an image on a recording material by an electrophotographic method. In the present exemplary embodiment, the laser beam printer is described as an example, but the present invention can be applied to an image formation apparatus such as a copying machine or an ink jet printer.
The first accommodation unit 100 is a unit that can be connected to a lower portion (end portion on the −Z direction side) of the image formation apparatus 1a. The first accommodation unit 100 is an accommodation portion capable of accommodating the recording material, and can convey the recording material toward the image formation apparatus 1a. Therefore, by connecting the first accommodation unit 100 to the image formation apparatus 1a, it is possible to increase the number of sheets of the recording material to be accommodated, and thus the usability for a user can be improved.
The second accommodation unit 200 is a unit that can be connected to a lower portion (end portion on the −Z direction side) of the first accommodation unit 100. The second accommodation unit 200 is an accommodation portion capable of accommodating the recording material, and can convey the recording material toward the first accommodation unit 100.
Therefore, by connecting the second accommodation unit 200 to the image formation apparatus 1a, it is possible to increase the number of sheets of the recording material to be accommodated, and thus the usability for the user can be improved.
The support unit 300 is a unit that can be connected to a lower portion (end portion on the −Z direction side) of the second accommodation unit 200. The support unit 300 is a support portion that supports the image formation apparatus 1a to which the first accommodation unit 100 and the second accommodation unit 200 are connected. The support unit 300 is provided with a caster 301 and can move the image formation unit 1, thereby improving the usability for the user.
Next, the image formation apparatus 1a will be described with reference to
Next, an image forming operation of the image formation apparatus 1a will be described. The scanner 53 irradiates the photosensitive drum 51 with light corresponding to an image signal to form an electrostatic latent image on the photosensitive drum 51. The development roller 54 develops the electrostatic latent image formed on the photosensitive drum 51 with the developer contained in the cartridge 50. Thus, a toner image is formed on the surface of the photosensitive drum 51.
In parallel with such an image forming operation, the paper feed roller 12 conveys a bundle(S) of the recording materials accommodated in the accommodation portion 30 to the first conveyance roller 13 and the separation roller 36. The separation roller 36 separates one recording material from the bundle of recording materials sent from the paper feed roller 12. The separated recording material is conveyed to the second conveyance roller pair 41 by the first conveyance roller 13 and the separation roller 36. The second conveyance roller pair 41 conveys the recording material to a nip portion formed by the photosensitive drum 51 and the transfer roller 52.
The transfer roller 52 transfers the toner image formed on the photosensitive drum 51 onto the recording material conveyed to the nip portion. The fixation unit 6 fixes the toner image by heating and pressing the recording material to which the toner image has been transferred by the transfer roller 52. Further, the fixation unit 6 conveys the recording material on which the toner image is fixed to a discharge roller 8. The discharge roller 8 discharges the recording material conveyed from the fixation unit 6 to the stack unit 9.
Next, a configuration of the image formation apparatus 1a will be described with reference to
As illustrated in
Further, as illustrated in
The main body right frame 90R and the main body left frame 90L are members extending in the X direction and the Z direction, and are formed of a sheet metal in the present exemplary embodiment. The main body right frame 90R supports an end portion of the cartridge 50 on the +Y direction side, and the main body left frame 90L supports an end portion of the cartridge 50 on the −Y direction side. The cartridge 50 is disposed between the main body right frame 90R and the main body left frame 90L in the second direction (Y direction). Further, the cartridge 50 can also be removed from the main body right frame 90R and the main body left frame 90L. That is, the cartridge 50 is attachable to and detachable from the housing 76.
The connection portion 64 is a connection member connected to each of the main body right frame 90R and the main body left frame 90L, and is formed of a sheet metal in the present exemplary embodiment. An end portion of the connection portion 64 on the +Y direction side is connected to an end portion of the main body right frame 90R on the −Z direction side. An end portion of the connection portion 64 on the −Y direction side is connected to an end portion of the main body left frame 90L on the −Z direction side. The distance between a downstream end portion of the housing 76 in the +X direction and the connection portion 64 is shorter than the distance between an upstream end portion of the housing 76 in the +X direction and the connection portion 64. Further, the connection portion 64 (downstream connection portion) is downstream of the support portion 80R and the support portion 80L in the +X direction. Furthermore, an upper end portion of the connection portion 64 is located below an upper end portion of a first guide portion 173 described below. In addition, a part of the connection portion 64 is located below a contact surface 80Rb and a contact surface 80Lb described below.
Next, a configuration of the accommodation portion 30 will be described with reference to
As illustrated in
As illustrated in
Next, configurations of the first accommodation unit 100 and the second accommodation unit 200 will be described with reference to
The first accommodation unit 100 includes a first accommodation portion 130 capable of accommodating a recording material and a housing 176. The first accommodation portion 130 has the same configuration as the accommodation portion 30 described above. The first accommodation portion 130 includes a front plate 130F, a rear plate 130B, a first supported portion 130R, and a first supported portion 130L. The front plate 130F, the rear plate 130B, the first supported portion 130R, and the first supported portion 130L respectively correspond to the front plate 30F, the rear plate 30B, the supported portion 30R, and the supported portion 30L of the accommodation portion 30. Therefore, since the description of the accommodation portion 30 is also applied to the first accommodation portion 130, the description of the first accommodation portion 130 will be omitted.
The first housing 176 includes a right side plate 167 (third frame), a left side plate 166 (fourth frame), first engagement pins 170 (170a, 170b, 170c, 170d), a connector 186, a first connector connection portion 187, a right cover 171a, a left cover 171b, a rear cover 171c, first guide portions 173 (173a, 173b), a first connection portion 163, a second guide portion 165, and a second connection portion 164. As illustrated in
The first paper feed roller 112 conveys the bundle(S) of the recording materials accommodated in the first accommodation portion 130 to the third conveyance roller 113 and the first separation roller 136. The first separation roller 136 separates one recording material from the bundle of recording materials sent from the first paper feed roller 112. The separated recording material is conveyed to the fourth conveyance roller pair 141 by the third conveyance roller 113 and the first separation roller 136. The fourth conveyance roller pair 141 conveys the recording material toward the second conveyance roller pair 41.
The first engagement pins 170a to 170d are provided on the top surface of the first accommodation unit 100, and are engaged with the positioning hole 85a, the positioning hole 85b, the positioning hole 85c, and the positioning hole 85d of the image formation apparatus 1a described above. Thus, the first accommodation unit 100 is connected to the lower portion of the image formation apparatus 1a. The connector 186 is connected to the connector connection portion 87 described above. Thus, the image formation apparatus 1a and the first accommodation unit 100 are electrically connected to each other. The first connector connection portion 187 is connected to a second connector 286 described below. Thus, the second accommodation unit 200 and the first accommodation unit 100 are electrically connected to each other.
As illustrated in
As illustrated in
As illustrated in
Further, as illustrated in
Next, a configuration of the first guide portion 173 will be described with reference to
As illustrated in
Next, the second guide portion (guide portion) 165 will be described. The second guide portion 165 is provided at an upstream end portion of the first connection portion 163 in the first direction. The second guide portion 165 may be integrated with the first connection portion 163 and may be an upstream end portion of the first connection portion 163 in the first direction. An inclined surface 165a is formed at an end portion of the second guide portion 165 on the +Z direction side, and the inclined surface 165a extends upward as extending in the first direction. Further, the second guide portion 165 is located upstream of the first guide portion 173 and the connection portion 64 in the first direction. Furthermore, the second guide portion 165 is located below the first guide portion 173. The function of the second guide portion 165 will be described below.
Next, a configuration of the second accommodation unit 200 will be described with reference to
The second accommodation unit 200 includes a second accommodation portion 230 and a second housing 276. The second accommodation portion 230 includes a front plate 230F, a rear plate 230B, a second supported portion 230R, and a second supported portion 230L. The second accommodation portion 230 has the same configuration as the accommodation portion 30 described above. That is, the front plate 230F, the rear plate 230B, the second supported portion 230R, and the second supported portion 230L respectively correspond to the front plate 30F, the rear plate 30B, the supported portion 30R, and the supported portion 30L of the accommodation portion 30. Therefore, since the description of the accommodation portion 30 is also applied to the second accommodation portion 230, the description will be omitted.
Further, the second housing 276 includes a second right side plate 267 (fifth frame), a second left side plate 266 (sixth frame), second engagement pins 270 (270a, 270b, 270c, 270d), a second connector 286, a second connector connection portion 287, a second right cover 271a, a second left cover 271b, a second rear cover 271c, third guide portions 273 (273a, 273b), a third connection portion 263, and a fourth connection portion 264. Furthermore, the second housing 276 has a second paper feed roller 212, a fifth conveyance roller 213, a second separation roller 236, and a sixth conveyance roller pair 241.
In addition, the third guide portion 273a and the third guide portion 273b respectively include a second contact surface 275a and a second contact surface 275b.
Further, the second right side plate 267 has a second support portion (second right support portion) 280R, and the second left side plate 266 has a first support portion (second left support portion) 280L.
Furthermore, the second accommodation unit 200 has second positioning holes 285a to 285d. The second positioning holes 285a to 285d are respectively connected to third engagement pins 380a to 380d included in the support unit 300, which will be described below. Thus, the support unit 300 is connected the lower portion of the second accommodation unit 200.
The second accommodation portion 230 can be moved in the −X direction with respect to the second housing 276 to take a fifth position (pull-out position) where the second accommodation portion 230 is pulled out from the second housing 276, as illustrated in
Since each configuration of the second accommodation unit 200 described above is identical to the configuration of the first accommodation unit 100, a description thereof will be omitted.
Next, a configuration of the support unit 300 will be described with reference to
The fourth guide portion 373 constitutes an end portion of the support unit 300 on the +Z direction side. The fourth guide portion 373a and the fourth guide portion 373b respectively have a third contact surface 375a and a third contact surface 375b. The third contact surfaces 375a to 375b constitute an end portion of the fourth guide portion 373 on the +Z direction side. Further, each of the third contact surface 375a and the third contact surface 375b extends upward as extending in the first direction.
Next, the hanging down of the accommodation portion 30 during insertion will be described with reference to
In the following description, a unit capable of accommodating a recording material may be referred to as an accommodation unit, and a unit connected below the accommodation unit may be referred to as a connection unit. For example, the image formation apparatus 1a according to the present exemplary embodiment can be referred to as an accommodation unit, and the first accommodation unit 100 can be referred to as a connection unit. Further, the first accommodation unit 100 may be referred to as an accommodation unit, and the second accommodation unit 200 may be referred to as a connection unit. Furthermore, the second accommodation unit 200 may be referred to as an accommodation unit, and the support unit 300 may be referred to as a connection unit.
A case where the accommodation portion 30 of the image formation apparatus 1a (accommodation unit) hangs down toward the first accommodation unit 100 (connection unit) will be described.
As illustrated in
First, the arrangement of the support portion 80 will be described with reference to
As illustrated in
Next, a space 500 will be described with reference to
As illustrated in
The space 500 is located downstream in the first direction with respect to the support portion 80R and the support portion 80L. Further, as illustrated in
As illustrated in
In the process of the accommodation portion 30 moving from the first position to the second position, the rear plate 30B, which is the end portion of the accommodation portion 30 on the first direction side, reaches downstream of the support portion 80R and the support portion 80L in the first direction. In a case where the accommodation portion 30 further moves in the first direction, the rear plate 30B enters the space 500 and moves downward (
In a case where the first guide portion 173 and the second guide portion 165 are not provided in the first accommodation unit 100, the rear plate 30B may interfere with the upstream end portion of the connection portion 64 in the first direction or the upstream end portion of the first connection portion 163 in the first direction, and the insertion of the accommodation portion 30 may be hindered. Further, in a case where the number of sheets of the recording material accommodated in the accommodation portion 30 is large, the weight of the entire accommodation portion 30 is increased, and thus the possibility of hanging down is further increased.
Accordingly, in the present exemplary embodiment, the first guide portion 173 and the second guide portion 165 are provided in such a manner that the insertion of the accommodation portion 30 is not hindered. The first guide portion 173 and the second guide portion 165 are positioned in the space 500. To be more specific, the first contact surface 175 of the first guide portion 173 and the inclined surface 165a of the second guide portion 165 are positioned in the space 500.
In the process of the accommodation portion 30 moving from the first position to the second position, the rear plate 30B of the accommodation portion 30 enters the space 500. Further, when the accommodation portion 30 moves from the first position to the second position, the accommodation portion 30 comes into contact with each of the first guide portion 173 and the second guide portion 165, and is guided upward. To be more specific, in the process of the accommodation portion 30 moving from the first position to the second position, the accommodation portion 30 is guided upward by coming into contact with the first contact surface 175 of the first guide portion 173 and the inclined surface 165a of the second guide portion 165.
The upper end of the first guide portion 173 is higher than the connection portion 64. Therefore, the accommodation portion 30 is guided by the first guide portion 173 to a position above the connection portion 64. As a result, the accommodation portion 30 is prevented from coming into contact with the accommodation portion 130 and the connection portion 64. Finally, the accommodation portion 30 can reach the second position, as illustrated in
It can also be said that the first guide portion 173 and the second guide portion 165 are guide members that come into contact with the accommodation portion 30 and guide the accommodation portion 30 upward in the process of the accommodation portion 30 moving from the first position to the second position.
In the above description, the hanging down of the accommodation portion 30 has been described. A case where the first accommodation portion 130 of the first accommodation unit 100 (accommodation unit) hangs down toward the second accommodation unit 200 (connection unit) will be described. The above description of the hanging down of the accommodation portion 30 also applies to the hanging down of the first accommodation portion 130, and thus a detailed description thereof will be omitted.
In the process of the first accommodation portion 130 moving from the third position to the fourth position, the rear plate 130B of the first accommodation portion 130 enters a space 1000. Further, when the first accommodation portion 130 moves from the third position to the fourth position, the first accommodation portion 130 comes into contact with the third guide portion 273 and is guided upward. To be more specific, the first accommodation portion 130 is guided upward by coming into contact with the second contact surface 275 of the third guide portion 273. As illustrated in
The upper end of the third guide portion 273 is higher than the second connection portion 164. Therefore, the first accommodation portion 130 is guided by the third guide portion 273 to a position above the second connection portion 164. As a result, the first accommodation portion 130 is prevented from coming into contact with the second accommodation portion 230 and the second connection portion 164. Finally, the first accommodation portion 130 can reach the fourth position, as illustrated in
It can also be said that the third guide portion 273 is a guide member that comes into contact with the first accommodation portion 130 and guides the first accommodation portion 130 upward in the process of the first accommodation portion 130 moving from the third position to the fourth position.
In the above description, the hanging down of the accommodation portion 30 has been described. A case where the second accommodation portion 230 of the second accommodation unit 200 (accommodation unit) hangs down toward the support unit 300 (connection unit) will be described.
In the process of the second accommodation portion 230 moving from the fifth position to the sixth position, the rear plate 230B of the second accommodation portion 230 enters the space 1500. Further, when the second accommodation portion 230 moves from the fifth position to the sixth position, the second accommodation portion 230 comes into contact with the fourth guide portion 373 and is guided upward. To be more specific, the second accommodation portion 230 is guided upward by coming into contact with the third contact surface 375 of the fourth guide portion 373. As illustrated in
The upper end of the fourth guide portion 373 is higher than the fourth connection portion 264. Therefore, the second accommodation portion 230 is guided by the fourth guide portion 373 to a position above the fourth connection portion 264. As a result, the second accommodation portion 230 is prevented from coming into contact with the support unit 300 and the fourth connection portion 264. Finally, the second accommodation portion 230 can reach the sixth position, as illustrated in
It can also be said that the fourth guide portion 373 is a guide member that comes into contact with the second accommodation portion 230 and guides the second accommodation portion 230 upward in the process of the second accommodation portion 230 moving from the fifth position to the sixth position.
Next, modification examples to which the present invention can be applied will be described with reference to
In the following description, an example where the shapes of
The shapes of the first guide portion 173, the second guide portion 165, the third guide portion 273, and the fourth guide portion 373 described in the first exemplary embodiment may be appropriately changed without being limited to the modification examples of
The first exemplary embodiment and the modification examples have been described above as examples to which the present invention can be applied.
In the first exemplary embodiment, the first accommodation unit 100 is connected to the lower portion of the image formation apparatus 1a, the second accommodation unit 200 is connected to the lower portion of the first accommodation unit 100, and the support unit 300 is connected to the lower portion of the second accommodation unit 200. However, the number and order of the units to be connected may be changed as appropriate. For example, an accommodation unit having the same configuration as the first accommodation unit 100 may be further added to the image formation unit 1 described in the first exemplary embodiment between the second accommodation unit 200 and the support unit 300. Further, for example, in the image formation unit 1 described in the first exemplary embodiment, the second accommodation unit 200 may be connected to the lower portion of the image formation apparatus 1a. Furthermore, the support unit 300 may be connected to the lower portion of the image formation apparatus 1a.
The second accommodation unit 200 according to the first exemplary embodiment does not include the second guide portion 165, however, the second accommodation unit 200 may include the second guide portion 165.
In the first exemplary embodiment, the first guide portion 173 includes two guide portions, that is, the first guide portion 173a and the first guide portion 173b. However, the number of guide portions of the first guide portion 173 may be one or more.
According to the present invention, in the process of inserting the accommodation portion into the housing, it is possible to guide the accommodation portion in such a manner that the insertion of the accommodation portion is not hindered.
While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.
This application claims the benefit of Japanese Patent Application No. 2023-200407, filed Nov. 28, 2023, which is hereby incorporated by reference herein in its entirety.
Number | Date | Country | Kind |
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2023-200407 | Nov 2023 | JP | national |