Exterior cover mounting structure

Abstract

To provide a mounting structure of an exterior cover in which the exterior cover is hardly detached from a device body.SOLUTION: An attachment structure of an exterior cover is an attachment structure of an exterior cover that covers an outer surface of an apparatus body. In each of the opposing side surface portions of the apparatus main body, one of the opposing side surface walls and the side surface frame has a side surface protruding portion protruding laterally. In addition, the other of the side wall and the side frame facing each other has a side through-hole that penetrates laterally and into which the side projection is inserted. One of the top wall and the top frame facing each other has a top projection portion projecting in the vertical direction. The other of the top wall and the top frame facing each other has a top through-hole that penetrates in the vertical direction and into which the top protrusion is inserted. The top face projection portion is locked to a peripheral edge of the top face through hole.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a mounting structure for an exterior cover that covers the outer surface of an apparatus main body. [Background technology]

[0002] For example, in the conventional mounting structure for an exterior cover disclosed in Patent Document 1, the exterior cover has a pair of opposing side walls and a top wall connecting the upper ends of the pair of side walls. The pair of side walls each have a side protrusion that protrudes in the opposing direction. The device main body has a pair of side frames that face the pair of side walls, respectively. The pair of side frames each have a side recess that is recessed in the opposing direction. The side protrusions are inserted into the side recesses and engaged with the periphery of the side recesses. This allows the exterior cover to be easily mounted to the device main body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 05-003613 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the conventional technology, there is a possibility that the exterior cover may come off from the device body.

[0005] The present invention has been made in view of the above points, and has an object to provide an outer cover mounting structure that makes it difficult for the outer cover to come off the device main body. [Means for solving the problem]

[0006] In order to solve the above problems, the mounting structure for an exterior cover of the present invention is a mounting structure for an exterior cover that covers the outer surface of a device main body. The exterior cover has a pair of opposing side walls and a top wall connecting upper ends of the pair of side walls. The device main body has a pair of side frames and a top frame. The pair of side frames face each of the pair of side walls. The top frame faces the top wall. One of the opposing side walls and side frames has a side protrusion that protrudes laterally. The other of the opposing side walls and side frames has a side through hole that penetrates laterally and into which the side protrusion is inserted. One of the opposing top walls and top frames has a top protrusion that protrudes in the vertical direction. The other of the opposing top walls and top frame has a top through hole that penetrates in the vertical direction and into which the top protrusion is inserted. The top protrusion is engaged with the periphery of the top through hole. [Effects of the Invention]

[0007] According to the configuration of the present invention, it is possible to provide an outer cover mounting structure that makes it difficult for the outer cover to come off the device main body. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a post-processing device 1 using an attachment structure for an exterior cover 20 according to an embodiment of the present invention; [Figure 2] FIG. 1 is a perspective view of a post-processing device 1 using an attachment structure for an exterior cover 20 according to an embodiment of the present invention; [Figure 3] FIG. 10 is an enlarged perspective view showing an upper portion of a side panel 111 according to an embodiment of the present invention; [Figure 4] 1 is a side view of an exterior cover 20 according to an embodiment of the present invention; FIG. [Figure 5] 1 is an enlarged vertical cross-sectional view of an upper portion of the exterior cover 20 according to an embodiment of the present invention; FIG. [Figure 6] 1 is an enlarged cross-sectional view showing an upper portion of the exterior cover 20 according to an embodiment of the present invention; FIG. [Figure 7]FIG. 10 is an enlarged perspective view showing a top surface convex portion 213a of the exterior cover 20 according to the mounting structure of the exterior cover 20 of the embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. FIGS. 1 and 2 are perspective views of a post-processing device 1 using an attachment structure for an exterior cover 20 according to one embodiment of the present invention, and FIG. 2 shows the state with the exterior covers 20 and 21 removed. The post-processing device 1 is connected to an image forming device (not shown) to form part of an image forming system. Note that the post-processing device 1 can also be connected to devices other than digital multifunction peripherals, such as laser printers, inkjet printers, and facsimile machines.

[0010] For ease of explanation, the vertical direction when the post-processing device 1 is in an installed state where it can be used (the state shown in FIG. 1) is defined as the up-down direction (Z1-Z2). The front side of the post-processing device 1 in FIG. 1 is defined as the front (front face) and the front-rear direction (Y1-Y2) is defined with the front face of the post-processing device 1 as the reference point. The left-right direction (X1-X2) is defined with the front face of the post-processing device 1 in the installed state as the reference point. In this embodiment, the left-right direction (X1-X2) is perpendicular to the up-down direction (Z1-Z2) and the front-rear direction (Y1-Y2). The left-right direction (X1-X2) is defined as the opposing direction in which the pair of side frames 1111 and 1112 face each other, and the front-rear direction (Y1-Y2) is defined as the intersecting direction that intersects with the opposing direction. This definition of the up-down direction does not limit the orientation or positional relationship of the exterior cover 20 when in use.

[0011] The post-processing device 1 includes a device main body 10 and resin exterior covers 21 and 22. The device main body 10 includes a metal housing 11. The housing 11 is formed in a rectangular parallelepiped shape, and in this embodiment, a sheet transport path (not shown) is arranged inside.

[0012] The housing 11 is composed of a pair of side panels 111 facing each other in the front-to-rear direction (Y1-Y2 direction), a bottom panel 110, and a top panel 112. The bottom panel 110 connects the lower ends of the pair of side panels 111. The top panel 112 connects the upper ends of the pair of side panels 111. The side panels 111, the bottom panel 110, and the top panel 112 are formed in the shape of rectangular plates.

[0013] 3 is an enlarged perspective view of the upper part of the side panel 111. The side panel 111 has a pair of side frames 1111, 1112 facing each other in the left-right direction (X1-X2), a top frame 1113 connecting the upper ends of the pair of side frames 1111, 1112, and a front frame 1114 covering the ends of the top frame 1113 and the pair of side frames 1111, 1112 in the front-to-rear direction (Y1-Y2). The top frame 1113 faces a top wall 213, which will be described later.

[0014] The side frame 1111 has side through-holes 1111a that penetrate in the left-right direction (X1-X2). In this embodiment, the side through-holes 1111a are provided in two locations in the up-down direction (Z1-Z2). The side frame 1112 has side through-holes 1112a that penetrate in the left-right direction (X1-X2). In this embodiment, the side through-holes 1112a are provided in two locations in the up-down direction (Z1-Z2) (see FIG. 2). The top frame 1113 has top through-holes 1113a that penetrate in the up-down direction (Z1-Z2).

[0015] The exterior cover 21 is attached to the side panel 111. The exterior cover 22 is attached to the top panel 112.

[0016] Fig. 4 is a side view of the exterior cover 21, and Fig. 5 is a vertical cross-sectional view showing the upper part of the exterior cover 21. Fig. 6 is a horizontal cross-sectional view showing the upper part of the exterior cover 21, and Fig. 7 is an enlarged perspective view of the top surface protrusion 213a. Note that in Fig. 7, the top surface protrusion 21 is integral with the top surface wall 213, but the top surface wall 213 is not shown. The exterior cover 21 has a pair of side surfaces 211, 212 facing each other in the left-right direction (X1-X2), the top surface wall 213 connecting the upper ends of the pair of side surfaces 211, 212, and a front surface wall 214 covering the ends of the top surface wall 213 and the pair of side surfaces 211, 212 in the front-rear direction (Y1-Y2).

[0017] The side wall 211 has a side protrusion 211a that protrudes laterally in the left-right direction (X1-X2) (see FIG. 6). In this embodiment, the side protrusion 211a is provided at two locations in the up-down direction (Z1-Z2) (see FIG. 4). The side protrusion 211a is inserted into the side through-hole 1111a.

[0018] The side wall 212 has side protrusions 212a that protrude laterally in the front-rear and left-right directions (X1-X2) (see FIG. 6). In this embodiment, the side protrusions 212a are provided at two locations in the up-down direction (Z1-Z2) (see FIG. 4). The side protrusions 212a are inserted into the side through-holes 1112a.

[0019] The top wall 213 has a top protrusion 213a that protrudes downward (in the Z2 direction). In this embodiment, one top protrusion 213a is provided. The top protrusion 213a is inserted into a top through-hole 1113a. In this embodiment, the top protrusion 213a and the top through-hole 1113a extend in the left-right direction (the opposing direction (X1-X2) in which the pair of side frames 1111, 1112 face each other).

[0020] The top surface protrusion 213a has a pair of inclined surfaces 213c, 213d at its tip that approach each other in the front-rear direction (left-right direction (intersecting direction (Y1-Y2) intersecting with the opposing direction (X1-X2))) toward the tip.

[0021] Furthermore, the top surface convex portion 213a has ribs 213b that protrude from the base in the front-rear direction (the crossing direction (Y1-Y2)). In this embodiment, the ribs 213b are formed in a plurality of threes aligned in the left-right direction (the opposing direction (X1-X2)). By providing a plurality of ribs 213b, the top surface convex portion 213a can be reinforced.

[0022] The pair of exterior covers 21 are attached to both sides of the device body 10 in the front-to-rear direction (Y1-Y2), and in each of the top frames 1113 arranged on both sides of the device body 10, the top through-holes 1113a are arranged shifted to one side (the right side X1 in this embodiment) from the center in the left-right direction (opposing directions (X1-X2)) (see FIG. 3). This allows the pair of exterior covers 21 to be correctly attached to the corresponding top frames 1113, respectively.

[0023] The top surface protrusion 213a is inserted into the top surface through-hole 1113a while the inclined surfaces 213c and 213d slide along the periphery of the top surface through-hole 1113a. After insertion, the tip of the top surface protrusion 213a is engaged with the periphery of the top surface through-hole 1113a. This causes the top surface protrusion 213a to be press-fitted into the top surface through-hole 1113a, firmly fixing the top wall 213 and the top surface frame 1113 together. The inclined surfaces 213c and 213d make it easy to insert the top surface protrusion 213a into the top surface through-hole 1113a.

[0024] The rib 213b comes into contact with the periphery of the top surface through-hole 1113a when the tip of the top surface convex portion 213a is inserted into the top surface through-hole 1113a. In other words, the rib 213b is not inserted into the top surface through-hole 1113a. This maintains a gap in the vertical direction (Z1-Z2) between the top surface frame 1113 and the top surface wall 213 when the exterior cover 21 is attached.

[0025] The exterior cover 21 is first inserted by inserting the top convex portion 213a into the top through-hole 1113a, and then inserting the side convex portion 211a into the side through-hole 1111a. This allows for easy positioning with respect to the side panel 111. Therefore, the exterior cover 21 can be easily attached to the side panel 111. Furthermore, the exterior cover 21 is locked to the side panel 111 on three sides, namely the side walls 211, 212 and the top wall 213. Therefore, an attachment structure for the exterior cover 21 that makes it difficult for the exterior cover 21 to come off the device main body 10 can be provided.

[0026] At this time, the top surface protrusion 213a and the top surface through-hole 1113a extend in the left-right direction (the opposing direction (X1-X2) in which the pair of side frames 1111, 1112 face each other). Therefore, when the tip of the top surface protrusion 213a is inserted into the top surface through-hole 1113a, the exterior cover 21 is unlikely to rotate around the top surface protrusion 213a as the central axis. Therefore, it is possible to provide an attachment structure for the exterior cover 21 that makes it more difficult for the exterior cover 21 and the device main body 10 to come off.

[0027] Although the embodiments of the present invention have been described above, the scope of the present invention is not limited thereto, and various modifications can be made without departing from the spirit of the invention. For example, in this embodiment, the side wall 211 is provided with a side protrusion 211a, the side wall 212 is provided with a side protrusion 212a, and the top wall 213 is provided with a top protrusion 213a. Furthermore, the side frame 1111 is provided with a side through-hole 1111a, the side frame 1112 is provided with a side through-hole 1112a, and the top frame 1113 is provided with a top through-hole 1113a. However, the side walls 211 and 212 may be provided with side through-holes, and the side frames may be provided with side protrusions. Furthermore, the top wall 213 may be provided with a top through-hole, and the top frame 1113 may be provided with a top protrusion. Furthermore, one of the side walls 211 and 212 may be provided with a side protrusion, and the other may be provided with a side through-hole. [Explanation of symbols]

[0028] 1 Aftertreatment device 10. Device body 11. Housing 21, 22 Exterior cover 110 Bottom plate 111 Side plate 112 Top plate 211, 212 side wall 211a, 212a Side convex part 213 Top wall 213a Top convex part 213b Base 214 Front wall 1111, 1112 Side frame 1111a, 1112a Side through hole 1113 Top frame 1113a Top surface through hole 1114 Front frame

Claims

1. In a mounting structure for an exterior cover that covers the outer surface of a device main body, The exterior cover is A pair of opposing side walls; a top wall connecting the upper ends of the pair of side walls, The device body includes: a pair of side frames respectively facing the pair of side walls; a top frame facing the top wall, One of the opposing side wall and the opposing side frame has a side protrusion that protrudes laterally, the other of the opposing side wall and the side frame has a side through hole that penetrates laterally and into which the side protrusion is inserted, one of the top wall and the top frame facing each other has a top protrusion that protrudes in the vertical direction, the other of the top wall and the top frame facing each other has a top through-hole that penetrates in the vertical direction and into which the top protrusion is inserted, An exterior cover mounting structure in which the top surface convex portion is engaged with the periphery of the top surface through hole.

2. The exterior cover mounting structure according to claim 1 , wherein the top surface convex portion and the top surface through-hole extend in opposing directions in which the pair of side frames face each other.

3. The mounting structure for an exterior cover according to claim 2 , wherein the top surface convex portion has a pair of inclined surfaces at a tip end portion thereof that approach each other in a direction intersecting the opposing direction as the tip approaches the tip.

4. The top surface convex portion has a rib protruding from a base portion in the intersecting direction, The mounting structure for an exterior cover according to claim 3 , wherein the rib contacts a peripheral edge of the top surface through-hole when a tip end of the top surface convex portion is inserted into the top surface through-hole.

5. The exterior cover mounting structure according to claim 4 , wherein a plurality of the ribs are arranged side by side in the opposing direction.

6. the exterior covers are attached to opposite side portions of the device body, 2. The mounting structure of an exterior cover according to claim 1, wherein in each of the top frames arranged on both sides of the device body, the top convex portion or the top through hole is each positioned offset to one side from the center in the opposing direction in which the pair of side frames face each other.

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