JP4133516B2 - Image forming apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electrophotographic image forming apparatus such as a printer, a copying machine, and a facsimile machine, and more particularly to an image forming apparatus having a concave handle that can be safely carried without breaking the weight balance.
[0002]
[Prior art]
In the electrophotographic image forming apparatus as described above, various devices such as charging, optical system, development, transfer, cleaning, fixing, paper processing, and photoreceptor are arranged in a compact manner. The shape, size, weight, and the like vary depending on the intended use and the like. For example, a tabletop type often has a weight of 10 to 20 kg. This type is usually provided with a handle on the external surface in order to carry it by human power.
[0003]
As for a handle of a conventional image forming apparatus, as disclosed in, for example, Patent Document 1, a printer unit system is formed such that a handhold portion 101 is formed on an external surface and a hand is placed on an upper wall portion of the recess. However, the depth of the recess is constant over the entire side (see FIG. 4). In addition, the conventional handle is usually provided in a central recess on the side or upper surface of the image forming apparatus.
Incidentally, an image forming apparatus having various devices as described above often has a center of gravity that does not coincide with the center of the apparatus due to its arrangement structure. For this reason, if a handle is provided at the center of the side as in the prior art, the weight balance will be lost when it is lifted, which is not only difficult to work but also has a safety problem. To avoid this, even if you try to make the handle coincide with the center of gravity line, it is not possible due to the structure of the image forming apparatus, or even if it can be matched, the balance in appearance is lost and the design is uncomfortable. There is a problem that occurs.
[0004]
[Patent Document 1]
JP-A-11-65197 (Claims 1-9, FIGS. 1-6, etc.)
[0005]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is an image forming apparatus having a handle shape in which an operation in which a hand naturally moves to the vicinity of the center of gravity line during a moving operation is performed in an image forming apparatus in which the center of gravity line and the center portion of the handle are displaced. Is to provide.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the present inventors have made various studies.As a result, the finger inserted into the center of the handle is formed by providing an inclination so that the bottom of the recess that becomes the handle gradually becomes deeper toward the center of gravity line. The present inventors have obtained the knowledge that it is accompanied by a movement that moves in the direction of the center of gravity in a very natural psychological manner, and based on this finding, the present invention has been completed.
[0007]
That is, the present invention
1) An image forming apparatus in which a moving concave handle (2) is arranged on the external surface, and the central portion (S) of the horizontal side of the handle (2 ) is connected to the center of gravity line (G) of the image forming apparatus. The concave bottom (4 ) of the recess is inclined so as to deepen from one end opposite to the center of gravity (G) to the center of gravity (G) when viewed from the center (S). The concave upper wall portion (3) has a depth that cannot be lifted with a finger in the vicinity of one end thereof, and has the deepest concave depth that can be lifted with a finger near the center of gravity line. an image forming apparatus characterized in that it comprises of,
2) The image forming apparatus as described in 1) above, wherein the handle is provided on both sides of the image forming apparatus and is provided near the center of the lateral side; and 3) a concave handle for movement on the outer surface. (2) is an image forming apparatus in which the central portion (S) of the horizontal side of the handle (2) is shifted from the barycentric line (G) of the image forming device and the bottom of the recess (4 ) So that the depth of the upper wall portion (3) of the recess heading toward the center portion (S) becomes deeper from the one end opposite to the center of gravity line (G) to the center of gravity line (G) when viewed from the center (S). The recess upper wall portion (3) has a depth that cannot be lifted with a finger near one end thereof, and is the deepest recess that can be lifted with a finger near the center of gravity line. An image forming apparatus having a depth ;
It is.
[0008]
According to the image forming apparatus of the present invention, when the operator tries to insert a finger near the center of the handle recess during the movement operation, it is lifted by hanging on the upper wall because the slope provided at the bottom of the recess is shallow. Therefore, an action to psychologically move the tip of the finger in a direction in which the inclination becomes deep is performed. And it is natural to move the finger up to the vicinity of the center of gravity, which is the depth of inclination that can be moved and lifted by placing a finger on the upper wall, so that the moving work can be done safely without breaking the weight balance. be able to. Moreover, since it is not necessary to match the position of the center of the handle to the center of gravity line, even if the center of gravity is offset from the center of the device, the handle can be placed in a balanced manner at the center of the external side, which makes it uncomfortable. It becomes possible to design without.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The present invention is an electrophotographic image forming apparatus such as a printer, a copying machine, and a facsimile, and mainly targets a size up to about A3 paper such as a desktop type or a personal type, and has a weight of about 10 to 20 kg. It is what has. These model types are required to be easily moved safely because an unspecified number of users carry them by themselves.
[0010]
An example of the structure of the handle in the image forming apparatus of the present invention will be described with reference to FIGS.
FIG. 1 shows a side view of an image forming apparatus (an example of a desktop printer) 1 according to the present invention. The center of gravity G of this apparatus is shifted from the center of the apparatus and is located on the left side. Are arranged in a balanced manner near the central portion S of the side. Here, the handle 2 is formed in such a size that the downward extension line of the center of gravity G fits in the lateral direction of the recess.
[0011]
FIG. 2 is an enlarged cross-sectional view of the handle 2 as viewed from above, and the bottom portion 4 of the recess is inclined so as to gradually become deeper along the direction of the center of gravity G (arrow direction). In order to carry this image forming apparatus, when a finger is inserted at the position A near the central portion S of the handle 2, the first joint portion (depth of about 2 cm) from the tip of the finger is inserted into the space formed in the bottom side area. Therefore, the recess upper wall portion (shown in a transparent shape in this figure) 3 at a position corresponding to this depth does not have enough space to be hooked and lifted. For this purpose, the operator moves his / her fingers in the direction of increasing inclination (arrow direction) to move to a location having a depth of at least the second joint that can be lifted (depth of about 6 cm). Become. However, the depth can be changed depending on the destination of the product because there are differences in the physique of people from country to country. Since the bottom of the recess has an inclined structure, the finger is naturally moved in a psychologically stable direction, that is, in a deep inclination direction. The lifting operation is started when the space of the upper wall portion 3 of the recess can be lifted and moved to the position of the center of gravity line G. Therefore, the carrying work can be performed smoothly and safely without breaking the weight balance.
[0012]
【The invention's effect】
As described above, the image forming apparatus according to the present invention can be moved safely without losing the balance of the center of gravity when lifted by hand due to the function of the handle shape.
[Brief description of the drawings]
FIG. 1 is an example of an image forming apparatus (desktop printer) according to the present invention, and illustrates a positional relationship between a handle 2 and a center of gravity G. FIG. 2 illustrates an example of a handle shape included in the image forming apparatus according to the present invention. .
FIG. 3 shows an example of a conventional print unit system provided with a cue portion.
FIG. 4 shows a shape example of a conventional cue portion.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Image forming apparatus 2 Handle 3 Upper wall part of a handle recessed part 4 Bottom of a handle recessed part (inclination)
G Center of gravity (line of center of gravity) of image forming device
S Center part of handle shape

Claims (3)

An image forming apparatus in which a moving concave handle (2) is arranged on the external surface, wherein the central portion (S) of the horizontal side of the handle (2) is shifted from the center of gravity (G) of the image forming apparatus. and, and the recess inner bottom (4), the inclination to be deeper from one end opposite to the gravity line (G) provided between the central portion (S) when viewed from the center of gravity line (G), the recess The upper wall portion (3) has a depth so that it cannot be lifted by placing a finger near one end thereof, and has a deepest recess depth that can be lifted by placing a finger near the center of gravity. An image forming apparatus.   The image forming apparatus according to claim 1, wherein the handle is provided on both side portions of the image forming apparatus and is provided near the center of the lateral side. An image forming apparatus having a movable concave handle (2) arranged on the external surface, wherein the central portion (S) of the horizontal side of the handle (2) is shifted from the center of gravity (G) of the image forming apparatus. In addition, the depth of the concave upper wall portion (3) toward the concave bottom side (4) is such that the center of gravity line (G) from one end opposite to the center of gravity line (G) when viewed from the central portion (S). The concave upper wall portion (3) has a depth so that it cannot be lifted by placing a finger near one end thereof, and the finger is placed near the center of gravity line. An image forming apparatus having the deepest recess depth that can be hung up and lifted.

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