JP7247620B2 - Mounting structure and image forming apparatus - Google Patents

Description

The present invention relates to a mounting structure and an image forming apparatus.

Japanese Unexamined Patent Application Publication No. 2002-100002 discloses a developing device in which a seal member that slides against the surface of an image roll is attached to a seal attaching seat surface on the opening side of a developing case at an end portion in the axial direction of a developing roller.

Patent Literature 2 listed below discloses a sound absorber attached to an exterior case. The sound absorbing device includes a sound absorbing member, and a flat plate member to which the sound absorbing member is connected on one end side and provided with an adhesive member having adhesive strength on the other end side of the same surface to which the sound absorbing member is connected. ing.

Patent Document 3 below discloses an image forming apparatus that includes a second cover and a third cover adjacent to the second cover as a plurality of covers that separate the inside and the outside of the housing. This structure includes a cover projecting portion projecting inward from the third cover and a cover projecting portion facing portion projecting inwardly from the second cover. A gap is formed so as to surround it.

JP 2016-126264 A JP 2007-093766 A JP 2015-181157 A

The present invention provides a mounting structure in which the gap between the edge of the main body and the opening/closing part becomes smaller when the opening/closing part is closed, compared to the structure in which the mounting part is attached so as not to protrude from the edge of the main body. The goal is to get

A mounting structure according to a first aspect includes: a main body constituting a housing of an image forming apparatus or an internal device of the image forming apparatus; An opening/closing portion opened to the outside of the main body from the opposed closed position, and an elongated opening along the edge inside the main body, a part of which protrudes from the edge toward the opening/closing portion. It has a protruding member that fills a gap between the edge and the opening and closing portion, and a sticking portion that affixes the protruding member to the side of the edge inside the main body.

A mounting structure according to a second aspect is the mounting structure according to the first aspect, wherein the sticking portion is positioned so as not to protrude from the edge in a state where the projecting member is stuck inside the main body portion. is provided in

A mounting structure according to a third aspect is the mounting structure according to the second aspect, wherein the attaching portion is a double-sided tape attached to the protruding member.

A mounting structure according to a fourth aspect is the mounting structure according to the second aspect or the third aspect, wherein a cut surface is formed at an end of the projecting member in a direction intersecting one side of the projecting member. A recess corresponding to the shape of the cut surface of the protruding member is formed at a position where the protruding member is attached inside the main body.

A mounting structure according to a fifth aspect is the mounting structure according to any one of the first aspect to the fourth aspect, wherein the opening/closing portion opens and closes at one end side facing the edge. The other end of the door is rotatably supported by the main body.

A mounting structure according to a sixth aspect is the mounting structure according to any one of the first to fifth aspects, wherein the protruding member has a sound absorbing property, It is a silent member for suppressing leakage of sound from the gap between the parts.

An image forming apparatus according to a seventh aspect has the mounting structure according to any one of the first to sixth aspects, and the main body is an outer casing.

According to the mounting structure according to the first aspect, compared to the configuration in which the mounting portion is mounted so as not to protrude from the edge of the main body, when the opening and closing portion is closed, the edge of the main body and the opening and closing portion gap becomes smaller.

According to the mounting structure according to the second aspect, the sticking portion can be seen from the outside of the main body, compared to the configuration in which the sticking portion protrudes from the edge of the main body with the protruding member attached. Suppressed.

According to the mounting structure according to the third aspect, it is easier to attach the protruding member along the inner edge of the main body than when the attaching portion is an adhesive.

According to the mounting structure according to the fourth aspect, compared to the configuration in which the projecting member is formed in a rectangular shape, it is suppressed that the projecting member is reversely mounted inside the main body.

According to the mounting structure according to the fifth aspect, in the structure in which the opening/closing part is a door, compared to the structure in which the mounting part is mounted so as not to protrude from the edge of the main body part, when the opening/closing part is closed, The gap between the edge of the main body and the opening/closing portion is reduced.

According to the mounting structure according to the sixth aspect, leakage of sound from the gap between the main body portion and the opening/closing portion is suppressed as compared with a structure in which a non-sound absorbing structure is mounted.

According to the image forming apparatus according to the seventh aspect, compared to the configuration in which the attachment portion is attached so as not to protrude from the edge of the housing, when the opening/closing portion is closed, the edge of the main body portion and the opening/closing portion are separated from each other. The gap between is smaller.

1 is a perspective view showing an image forming apparatus having a mounting structure according to a first embodiment; FIG. 1 is a side view showing an image forming apparatus having a mounting structure according to a first embodiment; FIG. It is a sectional side view which shows the attachment structure which concerns on 1st Embodiment. FIG. 4 is a perspective view showing a part of the main body cover and the silent member used in the mounting structure according to the first embodiment, as seen from the outside; FIG. 4 is a rear view showing the main body cover and the silent member used in the mounting structure according to the first embodiment, viewed from the inside; FIG. 4 is a perspective view showing a part of the main body cover and the silent member used in the mounting structure according to the first embodiment, viewed from the inside; FIG. 4 is an exploded perspective view showing parts of a main body cover and a silent member used in the mounting structure according to the first embodiment, viewed from the inside; FIG. 4 is a cross-sectional view showing a main body cover and a silent member used in the mounting structure according to the first embodiment; FIG. 10 is a cross-sectional view showing the main body cover and the silent member in the closed position of the opening/closing cover used in the mounting structure according to the second embodiment; FIG. 11 is a side cross-sectional view showing a mounting structure according to a first comparative example; FIG. 11 is a side cross-sectional view showing a mounting structure according to a second comparative example;

EMBODIMENT OF THE INVENTION Hereinafter, the form (henceforth this embodiment) for implementing this invention is demonstrated. In the following description, the direction indicated by arrow X in the drawings is the width direction of the device, and the direction indicated by arrow Y is the height direction of the device. A direction (arrow Z direction) orthogonal to each of the device width direction and the device height direction is defined as the device depth direction.

[First Embodiment]
The mounting structure of the first embodiment will be described with reference to FIGS. 1 to 8. FIG. FIG. 1 shows an example of an image forming apparatus 10 having a mounting structure S40 (see FIG. 3, etc.) of the first embodiment.

<Overall Configuration of Image Forming Apparatus>
As shown in FIG. 1, the image forming apparatus 10 includes an exterior case 12 as an example of a main body that constitutes an outer housing. The exterior case 12 is formed in a rectangular parallelepiped shape. More specifically, the exterior case 12 includes a rectangular bottom cover 12A, a pair of side covers 12B and 12C arranged along the device width direction (X direction) above the edge of the bottom cover 12A, It has The outer case 12 also includes a side cover (not shown) that is connected to the pair of side covers 12B and 12C on the far side of the pair of side covers 12B and 12C. Further, the outer case 12 includes a pair of side covers 12B and 12C and an upper cover 12D arranged above the inner side cover. The side cover 12B is bent in an L shape from one end in the device width direction (X direction) toward the side cover 12C in a plan view.

Further, the exterior case 12 is provided with a rectangular opening 14 at a position surrounded by the side cover 12B, the upper cover 12D and the side cover 12C. Further, the image forming apparatus 10 includes an opening/closing cover 16 as an example of an opening/closing portion that is rotatably provided with respect to the exterior case 12 and opens/closes the opening portion 14 .

As shown in FIG. 2, hinges 18 are provided at the lower portions of both sides of the opening/closing cover 16 in the width direction to rotatably support the opening/closing cover 16 to the side covers 12B and 12C. An operation unit 20 for releasing the locked state of the open/close cover 16 from the exterior case 12 is provided at the center portion in the width direction of the upper portion of the open/close cover 16 . As an example, by pushing the operation unit 20 downward, the locked state of the opening/closing cover 16 with respect to the exterior case 12 is released. The opening/closing cover 16 is a door whose bottom side is rotatably supported by hinge portions 18 on both sides in the width direction. That is, the open/close cover 16 opens the opening 14 of the exterior case 12 by rotating the upper side of the open/close cover 16 in the direction of the arrow A by means of the hinge portion 18 (see FIG. 1). Here, the lower side of the opening/closing cover 16 is an example of the one end side, and the upper side of the opening/closing cover 16 is an example of the other end side.

Further, the image forming apparatus 10 is provided with a plurality of (two in this embodiment) storage units 22 (not shown in FIG. 1) for storing different types of recording media (not shown) in the lower portion between the pair of side covers 12B (see FIG. 1). reference). The housing portion 22 is provided on the upper side of the bottom cover 12A. As an example, the housing portions 22 can be pulled out to the outside of the exterior case 12 .

Although not shown, inside the exterior case 12 of the image forming apparatus 10 are a transport unit that takes out a recording medium from one of the two storage units 22 and transports it, and a recording medium that is transported by the transport unit. and an image forming unit that forms a In the image forming apparatus 10, the configuration and arrangement of the conveying section and the image forming section inside the exterior case 12 are not particularly limited.

As shown in FIG. 1, the upper cover 12D is provided with a recessed ejection section 24, through which the recording medium on which an image is formed is ejected. As an example, the opening/closing cover 16 is arranged to face a portion of a conveying section that conveys the recording medium toward the discharge section 24 . An operation panel 26 for performing various operations of the image forming apparatus 10 is provided on one side of the upper cover 12D in the apparatus depth direction (Z direction).

<Configuration of mounting structure>
Next, the mounting structure S40 of this embodiment will be described with reference to FIGS. 3 to 8. FIG.

As shown in FIG. 3, in the mounting structure S40, in the closed state in which the opening/closing cover 16 closes the opening 14 of the exterior case 12, the upper edge (that is, the upper end) 42 of the opening/closing cover 16 is It faces the lower edge (that is, the lower end) 44 of the upper cover 12D. The opening/closing cover 16 is rotated outwardly of the exterior case 12 by the hinge portion 18 (see FIG. 2) from the closed position where the edge 42 of the opening/closing cover 16 faces the edge 44 of the upper cover 12D, as indicated by the arrow A. and the opening 14 is opened.

An inner member 30 is attached to the inner side of the upper cover 12D. The inner member 30 is formed in a crank shape on the edge 44 side of the upper cover 12D. An L-shaped rib 32 extending in a direction intersecting the edge 42 is provided inside the edge 42 of the opening/closing cover 16 . Further, the rib 32 is provided with an inner member 36 via a joint portion 34 . In this embodiment, the inner member 30 of the top cover 12D and the ribs 32 and inner members 36 of the top cover 12D are non-overlapping or non-overlapping. Further, in order to secure a passage space for the rib 32 and the inner member 36 when the opening/closing cover 16 rotates, the edge 42 of the opening/closing cover 16 is configured so as not to overlap the edge 44 of the upper cover 12D.

In general, when the edge of the opening/closing cover and the edge of the exterior case overlap in the horizontal direction when the opening/closing cover is closed, the portion of the edge of the exterior case that overlaps the edge of the opening/closing cover is silent. It is possible to paste the member. However, there are cases where the overlapping shape of the opening/closing cover and the external case cannot be made for reasons such as space saving of the image forming apparatus and the need to use a shape common to other image forming apparatuses. For example, in a structure in which the edges of the opening/closing cover and the edges of the exterior case are opposed to each other at the closed position of the opening/closing cover and there is a gap, there is no overlap between the opening/closing cover and the exterior case, and the silent member can be attached. is difficult. For this reason, there is a risk that the sound inside the image forming apparatus may leak outside from between the opening/closing cover and the exterior case.

In the mounting structure S40 of the present embodiment, the structure for mounting the silent member 50 as an example of the projecting member to the upper cover 12D is devised. In the mounting structure S40, the silent member 50 is mounted along the edge 44 inside the upper cover 12D. The silent member 50 is elongated along the edge 44 of the upper cover 12D. The silent member 50 is attached to the edge 44 side of the upper cover 12</b>D with a double-sided tape 54 attached to the silent member 50 . Here, the double-sided tape 54 is an example of the sticking portion.

The silent member 50 is a plate-like member. The silent member 50 has a sound absorbing property and has a function of suppressing leakage of sound through a gap between the edge 44 of the upper cover 12</b>D and the edge 42 of the opening/closing cover 16 . The silent member 50 is made of, for example, a porous material in order to ensure sound absorption. The porous material exerts its sound absorbing performance by converting sound energy into heat energy by generating viscous friction when air vibration accompanying sound incidence is transmitted to the air chamber inside the porous material. In this embodiment, the silent member 50 is made of a foaming resin that is softer than the resin forming the exterior case 12 . As the foamable resin, for example, urethane foam or the like is used. Further, the silent member 50 is made of, for example, a black member so as to be difficult to see from the outside of the image forming apparatus 10 .

As shown in FIGS. 3 to 5, the lower end portion 50B of the silent member 50 protrudes toward the opening/closing cover 16 from the edge 44 of the upper cover 12D. At the closed position where the open/close cover 16 closes the opening 14 of the exterior case 12, the silent member 50 fills the gap between the edge 44 of the upper cover 12D and the edge 42 of the open/close cover 16. (See Figure 3). Here, the lower end portion 50B is an example of a part of the silent member 50. As shown in FIG. In the mounting structure S40, when the opening/closing cover 16 closes the opening 14 of the exterior case 12, the lower end 50B of the silent member 50 (that is, the projecting end of the silent member 50) is positioned near the opening/closing cover. 16 edges 42 (see FIG. 3). In this embodiment, the lower end portion 50B of the silent member 50 is in light contact with the edge 42 of the opening/closing cover 16 .

In the mounting structure S40 of the present embodiment, the opening/closing cover 16 rotates from the closed position in contact with the silent member 50 in a direction intersecting the surface direction of the silent member 50 and away from the silent member 50 (arrow A direction). and the opening 14 is opened.

As shown in FIGS. 5 and 6, cut surfaces 52 are formed at the ends of the silent member 50 in the longitudinal direction in a direction intersecting one side 50A in the longitudinal direction of the silent member 50 (see FIG. 7). . In other words, the cut surface 52 is a chamfered portion obtained by chamfering one corner of the longitudinal end of the silent member 50 . The cut surface 52 is formed only on the side of the silent member 50 that is attached to the edge 44 of the upper cover 12D, that is, on the side that does not protrude from the edge 44 of the upper cover 12D. In this embodiment, the cut surface 52 is formed on the upper side of the silent member 50 in the vertical direction. In addition, the cut surfaces 52 are formed at both ends in the longitudinal direction of the silent member 50 (see FIG. 5).

As shown in FIGS. 7 and 8, a recessed portion 48 recessed from an inner side surface 46 of the upper cover 12D is formed at a position inside the upper cover 12D where the silent member 50 is attached. The recessed portion 48 is formed along the edge 44 of the upper cover 12</b>D so as to match the shape of the upper portion of the silent member 50 . An inclined surface 48</b>A is formed at the longitudinal end of the recessed portion 48 so as to match the shape of the cut surface 52 of the silent member 50 . The inclined surfaces 48A are formed at both ends in the longitudinal direction of the silent member 50 (see FIG. 6). The vertical width of the recessed portion 48 (that is, the width in the direction intersecting the longitudinal direction of the recessed portion 48) corresponds to the vertical width of the silent member 50 (that is, the width in the direction that intersects the longitudinal direction of the silent member 50). shorter than

The silent member 50 is attached to the recessed portion 48 of the upper cover 12D with double-sided tape 54 (see FIG. 8). The vertical width of the double-sided tape 54 (the width in the direction crossing the longitudinal direction of the double-sided tape 54) is equal to the vertical width of the recess 48 or slightly shorter than the vertical width of the recess 48. is set. The length of the double-sided tape 54 in the longitudinal direction is set equal to the length of the recess 48 in the longitudinal direction or slightly shorter than the length of the recess 48 in the longitudinal direction. A tapered surface (not shown) that is cut along the cut surface 52 of the silent member 50 is formed on the end of the double-sided tape 54 in the longitudinal direction. Note that the double-sided tape 54 may be cut along the cut surface 52 after being attached to the silent member 50 . Thereby, the double-sided tape 54 is formed so as to fit in the recessed portion 48 of the upper cover 12D.

When attaching the silent member 50 to the edge 44 of the upper cover 12D, the double-sided tape 54 is applied along the longitudinal direction of the silent member 50 to the side where the cut surface 52 of the vertical width of the silent member 50 is formed. Paste one side. Then, the other surface of the double-sided tape 54 is attached to the recessed portion 48 of the upper cover 12D so that the cut surface 52 of the silent member 50 faces or contacts the inclined surface 48A of the recessed portion 48 . As a result, the silent member 50 is attached to the recessed portion 48 of the upper cover 12D with the double-sided tape 54 with the cut surface 52 of the silent member 50 facing or in contact with the inclined surface 48A of the recessed portion 48 .

When the silent member 50 is attached to the recessed portion 48 of the upper cover 12D with the double-sided tape 54, the lower end portion 50B of the silent member 50 protrudes from the edge 44 of the upper cover 12D. At this time, the double-sided tape 54 does not protrude from the edge 44 of the upper cover 12D. That is, in the mounting structure S40, the double-sided tape 54 is attached to a position that does not protrude from the edge 44 of the recess 48 of the upper cover 12D (see FIGS. 3 and 8).

<Action and effect>
Next, the operation and effects of this embodiment will be described.

In the mounting structure S40 of the present embodiment, the opening/closing cover 16 is rotatably supported by the side covers 12B and 12C of the exterior case 12 by the hinge portions 18, and the rotation of the opening/closing cover 16 causes the opening 14 of the exterior case 12 to open. is opened and closed. In the closed position of the open/close cover 16, the edge 42 on the upper side of the open/close cover 16 faces the edge 44 on the lower side of the upper cover 12D. The opening 14 of the exterior case 12 is opened by rotating the opening/closing cover 16 from the closed position to the outside of the exterior case 12 .

An elongated silent member 50 is attached with double-sided tape 54 to the inner edge 44 of the upper cover 12D. At the closed position of the open/close cover 16, the lower end portion 50B of the silent member 50 protrudes from the edge 44 of the upper cover 12D toward the open/close cover 16 and fills the edge 44 of the upper cover 12D and the edge 42 of the open/close cover 16. It is configured. In this embodiment, the lower end portion 50B of the silent member 50 is in contact with the edge 42 of the opening/closing cover 16 .

Therefore, in the mounting structure S40, when the opening/closing cover 16 is closed, the edge 44 of the upper cover 12D and the opening/closing cover 16 are separated from each other, compared to the structure in which the attachment portion is attached so as not to protrude from the edge of the main body. gap becomes smaller.

In addition, the silent member 50 has sound absorption properties. Therefore, in the mounting structure S40, the clearance between the edge 44 of the upper cover 12D and the edge 42 of the opening/closing cover 16 is reduced compared to the configuration in which the silent member is mounted so as not to protrude from the edge of the main body. leakage of sound from is suppressed.

Further, the double-sided tape 54 is provided at a position that does not protrude from the edge 44 of the upper cover 12D with the silent member 50 attached inside the upper cover 12D. Therefore, in the mounting structure S40, the double-faced tape 54 is suppressed from being seen from the outside of the upper cover 12D, compared to the structure in which the sticking portion protrudes from the edge of the main body while the protruding member is stuck. , the deterioration of the appearance is suppressed. In addition, the user of the image forming apparatus 10 can be prevented from touching the double-sided tape 54 from the outside, compared to the configuration in which the sticking portion protrudes from the edge of the main body while the projecting member is stuck.

Further, the silent member 50 is attached to the inner edge 44 of the upper cover 12D with a double-sided tape 54 attached to the silent member 50. As shown in FIG. Therefore, in the mounting structure S40, the work of attaching the silent member 50 along the inner edge 44 of the upper cover 12D is easier than when the attaching portion is an adhesive.

In addition, a cut surface 52 is formed in a direction intersecting one side 50A of the silent member 50 at the longitudinal end of the silent member 50 . Further, a recessed portion 48 is formed at a position where the silent member 50 is attached inside the upper cover 12D. formed. Thus, the silent member 50 is attached to the recessed portion 48 so that the cut surface 52 of the silent member 50 contacts or faces the inclined surface 48A of the recessed portion 48 . Therefore, in the mounting structure S40, the silent member 50 is reversely attached to the inside of the upper cover 12D (that is, attached in the wrong vertical direction), compared to the configuration in which the projecting member is formed in a rectangular shape. is suppressed.

The opening/closing cover 16 is a door whose lower side is rotatably supported by the side covers 12B and 12C so that the upper side facing the edge 44 of the upper cover 12D can be opened and closed. For this reason, in the mounting structure S40, when the opening/closing cover 16 is a door, compared to the structure in which the mounting portion is mounted so as not to protrude from the edge of the main body portion, when the opening/closing cover 16 is closed, the upper cover The gap between the edge 44 of 12D and the opening/closing cover 16 is reduced.

Furthermore, in the image forming apparatus 10 having the mounting structure S40, compared to the configuration in which the mounting portion is mounted so as not to protrude from the edge of the housing, when the opening/closing cover 16 is closed, the edge of the upper cover 12D is The gap between 44 and the opening/closing cover 16 is reduced.

Here, the image forming apparatus 100 having the mounting structure S102 of the first comparative example will be described with reference to FIG.

As shown in FIG. 10, in the mounting structure S102 of the first comparative example, the silent member 110 is attached to the inner surface 106 of the edge 108 of the upper cover 104A with double-sided tape 112. As shown in FIG. The inner surface 106 of the edge 108 of the upper cover 104A is planar. At the closed position of the open/close cover 16, the lower end portion 110A of the silent member 110 protrudes toward the open/close cover 16 from the edge 44 of the upper cover 12D.

The silent member 110 has a rectangular shape. The double-sided tape 112 is attached to the entire surface of one side of the silent member 110 . Therefore, the double-sided tape 112 protrudes from the edge 44 of the upper cover 12D while the silent member 110 is attached to the inner surface 106 of the edge 108 of the upper cover 104A with the double-sided tape 112 . As a result, the double-sided tape 112 is visible from the outside of the image forming apparatus 100, degrading the external appearance. Also, the user of the image forming apparatus 100 may touch the double-sided tape 112 .

On the other hand, in the mounting structure S40 of the present embodiment, the double-sided tape 54 does not protrude from the edge 44 of the upper cover 12D when the silent member 50 is attached to the inner side of the upper cover 12D with the double-sided tape 54. (ie, does not protrude beyond edge 44). Therefore, in the mounting structure S40, the double-sided tape 112 protrudes from the edge 44 of the upper cover 12D while the silent member 110 is mounted on the inner surface 106 of the upper cover 104A (see FIG. 10). , the double-faced tape 54 is suppressed from being seen from the outside of the upper cover 12D, and deterioration of the appearance is suppressed. Along with this, the user of the image forming apparatus 10 is prevented from touching the double-sided tape 54 .

Next, the image forming apparatus 120 having the mounting structure S122 of the second comparative example will be described with reference to FIG.

As shown in FIG. 11, in the mounting structure S122 of the second comparative example, the silent member 110 is adhered to the inner surface 106 of the edge 108 of the upper cover 104A with double-sided tape 124. As shown in FIG. The double-sided tape 124 is attached to one side in the width direction of the rectangular silent member 110, that is, to the lower side in the vertical direction.

In the mounting structure S122, after the double-sided tape 124 is attached to one side of the silent member 110 in the width direction, the other side of the double-sided tape 124 is attached to the inner surface 106 of the edge 108 of the upper cover 104A. A member 110 is attached to the inner surface 106 of the edge 108 of the upper cover 104A via double-sided tape 124. As shown in FIG. At that time, the double-sided tape 124 of the silent member 110 is reversely attached to the inner surface 106 of the edge 108 of the upper cover 104A (it is stuck upside down), and the double-sided tape 124 side of the silent member 110 is on the upper side. It protrudes from the edge 108 of the cover 104A. For this reason, double-sided tape 124 is visible from the outside of image forming apparatus 120 , which degrades the external appearance of image forming apparatus 120 , and the user of image forming apparatus 120 may touch double-sided tape 124 .

In contrast, in the mounting structure S40 of the present embodiment, a cut surface 52 is formed in a direction intersecting the one side 50A of the silent member 50 at the longitudinal end of the silent member 50 . In addition, a recess 48 is formed in a position where the silent member 50 is attached inside the upper cover 12</b>D so as to match the shape of the cut surface 52 of the silent member 50 . Therefore, in the mounting structure S40, the silent member 50 is prevented from being reversely attached to the inner side of the upper cover 12D, compared to the configuration in which the silent member 110 is formed in a rectangular shape. Therefore, compared with the case where the double-sided tape can be seen from the outside of the image forming apparatus, deterioration in appearance of the image forming apparatus 10 is suppressed, and the user of the image forming apparatus 10 is prevented from touching the double-sided tape 54. be done.

[Second embodiment]
FIG. 9 shows an image forming apparatus 70 having a mounting structure S72 of the second embodiment. In addition, about the same component part as 1st Embodiment mentioned above, the same number is attached and the description is abbreviate|omitted.

As shown in FIG. 7 , the mounting structure S<b>72 is provided with an opening/closing cover 74 as an example of an opening/closing portion for opening/closing the opening 14 of the exterior case 12 . In the closed position of the open/close cover 74, an edge 76 on the upper side (that is, an upper edge) of the open/close cover 74 faces the edge 44 on the lower side of the upper cover 12D. The opening/closing cover 74 is configured to open the opening 14 by rotating from the closed position to the outside of the exterior case 12 as indicated by arrow A. As shown in FIG.

A silent member 80, which is an example of a protruding member, is attached to the hollow portion 48 inside the upper cover 12D with a double-sided tape 54. As shown in FIG. The silent member 80 is elongated along the edge 44 of the upper cover 12D. When the silent member 80 is attached to the recessed portion 48 of the upper cover 12D with the double-sided tape 54, the lower end portion 80B of the silent member 80 protrudes from the edge 44 of the upper cover 12D toward the opening/closing cover 74, and the upper cover 12D The gap between the edge 44 of the opening and closing cover 74 and the edge 76 of the opening/closing cover 74 is filled. In this embodiment, the lower end portion 80B of the silent member 80 is arranged so as to overlap the edge 76 of the open/close cover 74 at the closed position of the open/close cover 74, and the outer surface of the lower end portion 80B of the silent member 80 faces the open/close cover. 74 in contact with the inner surface of edge 76 .

The silent member 80 is plate-shaped. In addition, the silent member 80 is made of foaming resin such as urethane foam, for example, in order to ensure sound absorption. Other configurations of the silent member 80 are the same as those of the silent member 50 of the first embodiment.

In the mounting structure S72, the same effects as those of the mounting structure S40 of the first embodiment are obtained due to the same configuration. Further, the lower end portion 80B of the silent member 80 is arranged so as to overlap the edge 76 of the open/close cover 74 at the closed position of the open/close cover 74 . For this reason, in the mounting structure S72, the edge 44 of the upper cover 12D and the edge 76 of the opening/closing cover 74 do not overlap with the edge of the opening/closing part in the closing position of the opening/closing part. Leakage of sound from the gaps between is suppressed.

〔supplementary explanation〕
In the mounting structures S40 and S72 of the first and second embodiments, the opening/closing covers 16 and 74 are doors that are rotatably supported with respect to the exterior case 12, but the present invention is limited to this configuration. isn't it. For example, the mounting structure of the present invention can also be applied to a configuration having an opening/closing portion that can be pulled out from the housing.

In addition, in the mounting structures S40 and S72 of the first and second embodiments, the exterior case 12 constitutes the outer housing of the image forming apparatuses 10 and 70, but the present invention is limited to this configuration. isn't it. For example, the present invention may be applied to a mounting structure having a main body that constitutes a housing of an internal device of an image forming apparatus and an opening/closing part that opens and closes an opening of the main body. As an internal device of the image forming apparatus, for example, there is a developing device that stores toner.

Moreover, in the mounting structures S40 and S72 of the first and second embodiments, the silent members 50 and 80 are plate-shaped, but the present invention is not limited to this configuration. The silent member may be changed to another shape as long as a part of the silent member protrudes from the edge of the main body toward the opening/closing part and fills the gap between the edge of the main body and the opening/closing part. For example, the silent member may have a shape that fits into the gap between the edge of the main body and the opening/closing portion.

Moreover, in the mounting structures S40 and S72 of the first and second embodiments, the cut surfaces 52 are formed on both longitudinal sides of the silent members 50 and 80, but the present invention is not limited to this configuration. For example, the cut surface 52 may be formed on one side in the longitudinal direction of the silent member, and a recess corresponding to the shape of the cut surface of the silent member may be formed at the position where the silent member is attached inside the main body. .

Moreover, in the mounting structures S40 and S72 of the first and second embodiments, the silent members 50 and 80 are attached to the upper cover 12D of the exterior case 12, but the present invention is not limited to this configuration. . The present invention may be applied to, for example, a configuration in which a protruding member such as a shock absorbing member, a gap-filling member, or a sealing member is attached to the edge of the housing instead of the silent member. For example, in the developing device, a protruding member may be attached to the inner edge of the main body in order to suppress leakage of toner from the gap between the edge of the main body and the opening/closing portion.

Moreover, in the mounting structures S40 and S72 of the first and second embodiments, the silent members 50 and 80 are mounted inside the upper cover 12D with the double-sided tape 54, but the present invention is not limited to this structure. For example, the protruding member may be attached to the inner side of the edge of the main body using an adhesive as an example of the sticking portion.

Although the present invention has been described in detail with respect to particular embodiments, it should be understood that the invention is not limited to such embodiments and that various other embodiments are possible within the scope of the invention. clear to the trader.

10 Image forming apparatus 12 Exterior case (an example of main body)
12D upper cover (an example of the main body)
16 Open/close cover (an example of an open/close part)
44 edge 48 recessed portion 50 silent member (an example of a projecting member)
50A One side 50B Lower end (one example)
52 Cut surface 54 Double-sided tape (an example of the attachment part)
70 image forming apparatus 74 opening/closing cover (an example of an opening/closing part)
80 silent member (an example of a projecting member)
80A bottom end (one example)
S40 mounting structure S72 mounting structure

Claims (8)

a main body constituting a housing of an image forming apparatus or an internal device of the image forming apparatus;
an opening/closing portion provided to be openable and closable with respect to the main body portion and opened to the outside of the main body portion from a closed position facing an edge of the main body portion;
a protruding member elongated along the inner edge of the main body portion, partly protruding from the edge toward the opening/closing portion, and filling a gap between the edge and the opening/closing portion;
a sticking portion that sticks the protruding member to the side of the edge inside the main body;
has
A mounting structure in which a depression recessed from the inner surface of the body is formed on the side of the edge inside the body, and the protruding member is attached to the depression by the attaching section. . 2. The mounting structure according to claim 1, wherein the sticking portion is provided at a position that does not protrude from the edge when the protruding member is stuck to the hollow portion inside the main body portion. a main body constituting a housing of an image forming apparatus or an internal device of the image forming apparatus;
an opening/closing portion provided to be openable and closable with respect to the main body portion and opened to the outside of the main body portion from a closed position facing an edge of the main body portion;
a protruding member elongated along the inner edge of the main body portion, partly protruding from the edge toward the opening/closing portion, and filling a gap between the edge and the opening/closing portion;
a sticking portion that sticks the protruding member to the side of the edge inside the main body;
has
The sticking portion is provided at a position that does not protrude from the edge in a state where the protruding member is stuck inside the body portion,
A cut surface is formed at an end of the protruding member in a direction intersecting one side of the protruding member,
An attachment structure in which a recess corresponding to the shape of the cut surface of the protruding member is formed at a position inside the main body where the protruding member is attached. 4. The mounting structure according to claim 2, wherein the sticking portion is a double -sided tape stuck to the protruding member . A cut surface is formed at an end of the protruding member in a direction intersecting one side of the protruding member,
2. The mounting structure according to claim 1 , wherein the recessed portion to which the protruding member is attached inside the main body portion is formed so as to match the shape of the cut surface of the protruding member. According to any one of claims 1 to 5 , the opening/closing part is a door whose other end side is rotatably supported by the main body so that one end side facing the edge is opened and closed. Mounting structure as described. 7. The projecting member according to any one of claims 1 to 6 , wherein the protruding member is a silent member that has sound absorbing properties and suppresses leakage of sound from a gap between the main body portion and the opening/closing portion. Mounting structure as described. Having the mounting structure according to any one of claims 1 to 7 ,
An image forming apparatus, wherein the main body is an outer casing.

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