The present invention relates to an image forming apparatus including a grip member that is gripped during transportation and a support portion that supports the grip member.
Image forming apparatuses such as printers, copiers, and facsimile machines may include a grip member. The grip member is used when fixing the image forming apparatus during transportation or when moving the image forming apparatus. For example, a grip member that can be stored in a housing of an image forming apparatus (see Patent Document 1) and a detachable grip member whose mounting position can be changed (see Patent Document 2) are known.
However, in a case of a conventional grip member that can be stored in the housing, there are cases where the grip member moves to the storage position while the user is gripping the grip member, and pinches the user's hand. In addition, detachable conventional grip members must be stored separately when not in use. Therefore, the conventional grip member cannot be used immediately when needed, making the grip member inconvenient to use, and there is also a risk of the grip member becoming lost.
An object of the present invention is to provide an image forming apparatus having a grip member that is highly safe and excellent in usability.
An image forming apparatus according to one aspect of the present invention includes a grip member to be gripped, and a support portion configured to support the grip member. The support portion is provided in a housing of the image forming apparatus, and supports the grip member to be slidable between a first position where the grip member is stored further inside than a side surface of the housing and a second position where the grip member protrudes outward from the side surface and can be gripped. The grip member has an upper grip portion and a lower grip portion that are separated in the up-down direction and supported by the support portion so as to be able to slide substantially horizontally. The image forming apparatus includes a restricting mechanism configured to restrict both the upper grip portion and the lower grip portion from sliding toward the first position in a state in which the grip member is at the second position and an upward force is applied to at least one of the upper grip portion and the lower grip portion.
According to the present invention, it is possible to achieve a grip member that is highly safe in use and excellent in usability.
Embodiments of the present invention will be described below with reference to the accompanying drawings. The following embodiments are examples of implementing the present invention and do not limit the technical scope of the present invention. Note that in the following description, the up-down direction D1, the front-rear direction D2, and the left-right direction D3 shown in each of the drawings may be used.
As shown in
The image forming portion 14 forms an image on a sheet of printing paper of a prescribed size such as A size or B size based on image data read by the image reading portion 12 or based on image data input from the outside. The image forming portion 14, according to a preset printing mode (single-sided printing mode or double-sided printing mode) performs either a single-sided printing process (single-sided image forming process) for forming an image on only one side of a sheet of printing paper, or a double-sided printing process (double-sided image forming process) for forming images on both sides of a sheet of printing paper.
The sheet feed devices 27 and 28 convey printing paper stored in a paper storage portion 22 toward the image transfer portion 18 by a feeding mechanism 15. Several hundred to several thousand sheets of printing paper can be stacked in the paper storage portion 22.
The image transfer portion 18 is provided above the sheet feeding device 27. The image transfer portion 18 performs an image transfer process on the printing paper conveyed from the sheet feeding devices 27 and 28 using monochromatic toner. More specifically, the image transfer portion 18 transfers a toner image onto a sheet of printing paper using a printing material such as toner based on input image data. The image transfer portion 18 includes a photoconductor drum 31, a charging portion 32, a developing portion 33, a laser scanning unit (LSU) 34, a transfer roller 35, and a cleaning portion 36.
When an image forming operation is started, the charging portion 32 charges a surface of the photoconductor drum 31 to a uniform potential. In addition, the LSU 34 scans the photoconductor drum 31 with a laser beam according to image data. Thus, an electrostatic latent image is formed on the photoconductor drum 31. After that, toner is adhered to the electrostatic latent image by the developing portion 33 to form a toner image on the photoconductor drum 31. The transfer roller 35 is arranged to face the photoconductor drum 31 across a conveying path. When a sheet of printing paper being conveyed along the conveying path passes through a nip portion between the transfer roller 35 and the photoconductor drum 31, the toner image is transferred to the sheet of printing paper by the transfer roller 35. The sheet of printing paper onto which the toner image has been transferred is conveyed along the conveying path to the fixing portion 19 arranged further on a downstream side (that is, upper side) in the conveying direction of the sheet of printing paper than the image transfer portion 18.
The fixing portion 19 includes a heating roller 19A and a pressure roller 19B, and fixes the toner image that was transferred to the sheet of printing paper to the sheet of printing paper by heat. The sheet of printing paper on which fixing of the image has been completed is discharged from a paper discharge port 37 to a discharge tray 21.
The image forming apparatus 10 is a multifunction device provided with the image reading portion 12 and the image forming portion 14, and thus even a case of being medium sized, would weigh 60 to 70 kg, and in a case of being capable of color printing, would weigh 80 to 90 kg, and some large machines may weigh more than 100 kg. Such an image forming apparatus 10 is provided with casters 39 on the bottom surface of the housing 29 so as to be easily movable on a floor after being installed in an office or the like. However, as described above, since the image forming apparatus 10 is heavy, the housing 29 of the image forming apparatus 10 is provided with a grip member 40 (an example of a grip member of the present invention) for the user to grip when moving the image forming apparatus 10.
The grip member 40 included in the image forming apparatus 10 will be described below with reference to
The support portion 60 includes a first support portion 61 that horizontally supports an upper grip portion 41 (an example of an upper grip portion of the present invention) that, as will be described later, is provided in the grip member 40, and a second support portion 62 that horizontally supports a lower grip portion 42 (an example of a lower grip portion of the present invention) that, as will be described later, is provided in the grip member 40. Both the first support portion 61 and the second support portion 62 are tubular members formed in a square tubular shape, and both extend in the horizontal direction. The support portion 60 has a base portion 63 that connects the first support portion 61 and the second support portion 62, and the base portion 63 extends in the up-down direction D1. The first support portion 61 extends to a side (to the right side) from an upper end portion of the base portion 63, and an opening 611 at the extended end portion extends to a bottom surface 81 of a rectangular recessed portion 80 formed in the right side surface 30R. In addition, the second support portion 62 extends to a side (to the right side) from a lower end portion of the base portion 63, and an opening 621 at the extended end portion extends to the bottom surface 81 of the rectangular recessed portion 80 formed in the right side surface 30R. Each opening 611, 621 is exposed at the side of the bottom surface 81.
As shown in
Note that a stopper member 66 having the same configuration as the stopper member 65 is also provided in the second support portion 62. The stopper member 66, in a state of being inserted in an inner hole 622 of the second support portion 62, is inserted through a guide groove 421 formed in the lower grip portion 42. Thus, the stopper member 66 restricts sliding movement of the lower grip portion 42 and prevents the lower grip portion 42 from coming out of the second support portion 62.
As shown in
The engaging hole 68 forms a part of a restricting mechanism of the present invention, and together with an engaging piece 48 that as will be described later is provided in the upper grip portion 41, forms the restricting mechanism. That is, in a case where, in a state in which the grip member 40 is in the use position and an upward force is applied to at least one of the upper grip portion 41 and the lower grip portion 42, the restricting mechanism restricts the upper grip portion 41 from sliding toward the storage position.
The engaging hole 68 is arranged at a position further inside the housing 29 (on the left side in
In addition, in a case where the upper grip portion 41 is inserted into the deep portion of the inner surface of the lower wall 61C of the first support portion 61 up to the deep side of the first support portion 61, an engaging protrusion 69 is formed in order to hold the upper grip portion 41 at that position.
As shown in
At least the engaging hole 71C formed in the lower wall 62C forms a part of the restricting mechanism of the present invention, and together with an engaging piece 51 (51C) described later and included in the lower grip portion 42, configures the restricting mechanism of the present invention. That is, in a case where, in a state in which the grip member 40 is in the use position and an upward force is applied to at least one of the upper grip portion 41 and the lower grip portion 42, the restricting mechanism restricts the lower grip portion 42 from sliding toward the storage position.
The engaging hole 71C is arranged at a position further inside the housing 29 (on the left side in
In addition, in a case where the lower grip portion 42 is inserted into the deep portion of the inner surface of the lower wall 62C of the second support portion 62 up to the deep side of the second support portion 62, an engaging protrusion 72 is formed in order to hold the lower grip portion 42 at that position.
As shown in
The connecting portion 43 is a square column-shaped member extending in the up-down direction D1. The upper grip portion 41 and the lower grip portion 42 each extend in a perpendicular direction from a side surface of the connecting portion 43. The upper grip portion 41 and the lower grip portion 42 are separated in the up-down direction D1, and a base end portion 41A of the upper grip portion 41 is connected to an upper end portion of the connecting portion 43. In addition, a base end portion 42A of the lower grip portion 42 is connected to a lower side of the connecting portion 43. In this embodiment, the connecting portion 43 has a protruding portion 431 (an example of a protruding portion of the present invention) that protrudes further downward from the base end portion 42A of the lower grip portion 42. The protruding length of the protruding portion 431 is, for example, at least equal to or greater than a thickness of a palm of the worker who grips the lower grip portion 42.
A guide groove 411 is formed in the upper grip portion 41. The guide groove 411 is a through groove that penetrates through the upper grip portion 41 in the front-rear direction D2, and is formed in a central portion in the up-down direction D1. The guide groove 411 extends in the left-right direction D3, and a height in the up-down direction D1 of the guide groove 411 is a size that allows the stopper member 65 to be inserted therein.
In addition, a guide groove 421 is formed in the lower grip portion 42. The guide groove 421 is formed in the same shape as the guide groove 411, and is a through groove that penetrates through the lower grip portion 42 in the front-rear direction D2. The guide groove 421 is formed in a central portion of the lower grip portion 42 in the up-down direction D1. The guide groove 421 extends in the left-right direction D3, and a height in the up-down direction D1 of the guide groove 421 is a size that allows the stopper member 66 to be inserted therein.
In this way, the guide groove 411 is provided in the upper grip portion 41 and the guide groove 421 is provided in the lower grip portion 42, and thus by inserting the upper grip portion 41 into the inner hole 612 of the first support portion 61 and inserting the lower grip portion 42 into the inner hole 622 of the second support portion 62, it is possible for the grip member 40 to slide between the storage position shown in
As shown in
In addition, as shown in
In the present embodiment, the grip member 40 is arranged in the housing 29 with a center of gravity G1 (see
As described above, the image forming apparatus 10 of the present embodiment includes the support portion 60 that supports the grip member 40 so as to be able to slide between the storage position and the use position, and the grip member 40 includes an upper grip portion 41 and a lower grip portion 42 separated in the up-down direction D1. Therefore, as shown in
In addition, when the grip member 40 is used, the worker, by applying a force in the direction of pulling out the connecting portion 43 of the grip member 40 and pulling the grip member 40 out to the use position (see
In addition, in a case where the worker grips the lower grip portion 42 of the grip member 40 and applies an upward lifting force F1, as shown in
In addition, in a case where the worker grips the upper grip portion 41 of the grip member 40 and applies an upward lifting force, the grip member 40 tries to rotate in a direction of the arrow D11 with an action point at which the upper grip portion 41 and the opening 611 come in contact as a fulcrum point. In this case as well, the engaging piece 48 of the upper grip portion 41 is inserted into the engaging hole 68, and the lower engaging piece 51C of the lower holding portion 42 is inserted into the corresponding engaging hole 71C. As a result, even in a case where a pressing force is applied to the grip member 40 toward the storage position, the grip member 40 is prevented from sliding toward the storage position.
Note that as described above, in the present embodiment, both the upper grip portion 41 and the lower grip portion 42 prevent sliding movement toward the storage position, and thus it is possible to achieve an extremely high degree of safety as compared with a grip member having a conventional structure.
In addition, in the embodiment described above, engaging holes 71 are also formed in the front wall 62A, the rear wall 62B, and the upper wall 62D of the second support portion 62, and engaging pieces 51 corresponding to the engagement holes 71 are provided at the tip end portion of the lower grip portion 42. Therefore, for example, in a case where a forward force, a rearward force, or a downward force is applied to the grip member 40, one of the engaging pieces 51 is inserted into an engaging hole 71, preventing the lower grip portion 42 from sliding toward the storage position.
In addition, in the present embodiment, the upper grip portion 41 can be used as a suspension hook. That is, when the worker lifts the image forming apparatus 10 by a crane or the like, the upper grip portion 41 can be used as a hook for passing a wire rope.
Note that in the embodiment described above, in a case where an upward force F1 is applied to the lower grip portion 42, the amount of rotation (the amount of movement in the direction of the arrow D11) of the upper grip portion 41 far from the point of action P1 is greater than the amount of rotation of the lower grip portion 42 near to the point of action P1. Therefore, the engaging hole 68 is arranged at a position slightly further inside (the inner side of the housing 29) than the engaging hole 71C, and the height of the inner hole 612 of the first support portion 61 is slightly larger than the height of the inner hole 622 of the second support portion 62. Note that the shapes of the engaging hole 68 and the engaging holes 71C are not limited to those of the embodiment described above and need only be arranged at positions where the engaging pieces 48 and 51C can be inserted in a case where an upward force is applied to the grip member 40.
In addition, in the embodiments described above, an example of a configuration in which one engaging hole 68 is formed in the first support portion 61 and one engaging piece 48 is provided in the upper grip portion 41 is described; however, it is possible, for example, as in the case of the second support portion 62 and the lower grip portion 42, to form a plurality of engaging holes 68 in the first support portion 61 and provide a plurality of engaging pieces 68 in the first support portion 61.
Number | Date | Country | Kind |
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2020-126152 | Jul 2020 | JP | national |
Filing Document | Filing Date | Country | Kind |
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PCT/JP2021/026960 | 7/19/2021 | WO |
Publishing Document | Publishing Date | Country | Kind |
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WO2022/024837 | 2/3/2022 | WO | A |
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Number | Date | Country | |
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20230297020 A1 | Sep 2023 | US |