JP5023892B2 - Case and electronic device provided with the case - Google Patents

Description

  The present invention includes a housing body having an opening and a housing component attached to the opening of the housing body, and is provided on either the inner surface of the opening of the housing body or the peripheral portion of the housing component. The present invention relates to a housing in which a plurality of convex portions provided and a plurality of concave portions provided on the other engage with each other to attach a housing component to the housing body.

  In general, an electronic device such as a printer includes a casing made of a plastic material or the like and is accommodated in the casing. The casing of such an electronic device includes, for example, a casing main body that serves as a base of a casing such as a lower housing, and casing components such as an upper housing, a side housing, and an operation panel unit, which are coupled to each other. As a result, the entire housing is usually formed (see, for example, Patent Documents 1 to 3).

In addition, as means for coupling the casing body and the casing components to each other, an uneven engagement structure such as a so-called snap fit (for example, see Patent Document 1 or 2) or screwing (for example, Patent Document 2 or 3) is known.
JP 2002-359479 A Japanese Patent Laid-Open No. 2004-082407 Japanese Patent Laid-Open No. 2007-030389

  When the casing main body and each casing component are coupled by a coupling component such as a screw, there is an advantage that the casing main body and each casing component can be coupled extremely firmly. Therefore, the casing component is hardly detached from the casing main body due to an impact acting on the casing main body by dropping the casing. However, there is a demerit that a part of the screw or the like is exposed to the outside of the casing and the appearance design of the electronic device is impaired by connecting the casing body and each casing component with a connecting part such as a screw. In this case, for example, if a part where a part of the screw or the like is exposed is covered with a decorative panel or the like, the part of the screw or the like can be prevented from being exposed to the outside (see, for example, Patent Document 3).

  However, by adding parts such as a decorative panel, the number of parts of the casing increases and the cost of the casing increases. Also, for example, when repairing a defective electronic device or recycling an electronic device that has reached the end of its useful life, it is necessary to remove the screws one by one when separating each housing component from the housing body Therefore, a lot of time is required for the work, and there is a problem that workability is not good.

  On the other hand, when connecting the housing body and each housing component with a concave-convex engagement structure such as a snap fit, since the coupling components such as screws are not used, the number of parts of the housing does not increase, and screws, etc. It does not occur that a part of the electronic device is exposed to the outside of the housing and the appearance of the electronic device is not damaged. Moreover, even if uneven engagement by snap fit or the like is provided on the inner side of the housing so that it does not appear on the exterior of the housing, a through hole or the like for accessing the uneven engagement portion by snap fit or the like inside the housing is provided. If it is provided on the body, each casing component can be easily separated from the casing main body (see, for example, Patent Document 2).

  However, the coupling by snap fit or the like is weaker than the screw coupling, and there is a risk that the casing components may be detached from the casing body due to an impact acting on the casing body by dropping the casing. There was a problem that there was.

  The present invention has been made in view of such a situation, and the problem is that a housing formed by joining a housing body and each housing component with a concave-convex engagement structure is subjected to a housing by dropping or the like. The object is to reduce the possibility that the casing components are detached from the casing main body due to the impact acting on the body.

  In order to achieve the above object, a first aspect of the present invention includes a housing body having an opening and a housing component attached to the opening of the housing body, and the opening of the housing body. The plurality of convex portions provided on one of the inner surface of the portion or the peripheral portion of the casing component and the plurality of concave portions provided on the other are engaged with each other so that the casing component is attached to the casing main body. A housing to be attached, wherein the housing component has two or more convex portions or concave portions on a peripheral portion of a portion corresponding to an inner surface of at least one corner portion of the opening portion. It is the housing | casing characterized by being arrange | positioned closely by the direction which cross | intersects relatively.

  Here, when an impact in the same direction as the fitting direction of the concave and convex portions acts on the housing body, the concave and convex portions are fitted more deeply into the concave and convex engaging portions of the housing main body and the housing components. Force in the direction to act. Therefore, the concave-convex engagement between the housing body and the housing components is unlikely to come off against an impact in such a direction. On the other hand, when an impact in a direction intersecting with the fitting direction of the concave portion and the convex portion acts on the casing body, the concave and convex engaging portion between the casing main body and the casing component has a fitting direction between the concave portion and the convex portion. Forces in the intersecting direction are applied. That is, a force in a direction in which the concave / convex engagement is released while the concave portion and the convex portion that are fitted to each other are laterally displaced relatively to the concave / convex engaging portion between the casing main body and the casing component. Therefore, the concave-convex engagement between the housing body and the housing components is likely to be released with respect to the impact in such a direction.

  In the housing according to the first aspect of the present invention, the uneven engagement structure between the inner surface of the opening of the housing body and the peripheral portion of the housing component is at least one of the corner portions of the housing body. Two or more corners are arranged close to each other in a relatively intersecting direction. Therefore, when an impact in a direction intersecting the fitting direction of the concave portion and the convex portion acts on one concave / convex engaging portion of the corner portion, the concave / convex engagement is performed in a direction crossing the concave / convex engaging portion. A force in a direction in which the concave portion and the convex portion are fitted more deeply acts on the other concave and convex engaging portions.

  As a result, even if a force in a direction in which the concave / convex engagement is easily released due to an impact acting on the housing body acts on one concave / convex engagement portion, the other concave / convex engagement member arranged in a direction intersecting with the concave / convex engagement portion. The concave / convex engagement of the joint portion is firmly held. In addition, since the one concave-convex engaging portion and the other concave-convex engaging portion are provided close to each other and integrally provided, it can be regarded as an integral rigid body. Therefore, it is possible to restrict the concavo-convex engagement of one concavo-convex engagement portion from being released by firmly holding the concavo-convex engagement of other concavo-convex engagement portions.

  That is, two or more concave and convex engaging portions arranged close to the corner portion in a relatively intersecting direction can mutually complement the concave and convex engaging being released by an impact acting on the housing body. it can.

  Thereby, according to the housing | casing as described in the 1st aspect of this invention, in the housing | casing formed by couple | bonding a housing main body and each housing | casing component with an uneven | corrugated engagement structure, it falls in a housing | casing by fall etc. The effect that the possibility that the casing components may be detached from the casing main body due to the acting shock can be reduced.

  According to a second aspect of the present invention, in the casing according to the first aspect described above, a plurality of arm portions project from the peripheral portion of the casing component along the inner side surface of the casing main body. The convex portions or the concave portions are respectively provided at the distal end portions of the respective arm portions, and the housing parts are arranged close to each other in a direction relatively intersecting with a portion corresponding to an inner side surface of the corner portion. Two or more arm portions provided with a convex portion or the concave portion engage with one arm portion to be deformed in a direction in which the concave-convex engagement is disengaged so that the other arm portion restricts the deformation. It is the housing | casing characterized by.

  In response to an impact acting on the housing body, even if the arm portion is bent and deformed in a direction in which the concave-convex engagement is disengaged at one concave-convex engagement portion of the corner portion, the other concave-convex engagement member arranged in the intersecting direction is adjacent. The arm portion of the joint portion engages so as to restrict the bending deformation. In other words, the two or more concave and convex engaging portions disposed in the vicinity of the corner portion can mutually and directly regulate the fact that the concave and convex engagement is released due to an impact acting on the housing body. Therefore, according to the case described in the second aspect of the present invention, the case formed by joining the case main body and each case part with the concave-convex engagement structure acts on the case due to dropping or the like. The effect of being able to further reduce the possibility that the casing components are detached from the casing main body due to the impact that occurs.

According to a third aspect of the present invention, in the casing according to the second aspect described above, the casing parts are arranged close to each other in a direction relatively intersecting with a portion corresponding to the inner side surface of the corner portion. A length of the arm part provided with the convex part or the concave part is relatively different.
As described above, the lengths of the arm portions that are arranged close to each other in a relatively intersecting direction are relatively different, so that when the housing part is attached to the housing body, the concave portion and the convex portion due to the bending deformation of the arm portion Can be smoothly performed without the arms interfering with each other.

According to a fourth aspect of the present invention, in the casing according to any one of the first to third aspects described above, the casing component is a lid that closes the opening of the casing main body. It is the housing | casing characterized by.
According to the housing according to the fourth aspect of the present invention, in the housing having the lid that closes the opening of the housing main body, the lid is removed from the housing main body by an impact acting on the housing due to dropping or the like. The effect that the possibility of detachment can be reduced can be obtained.

According to a fifth aspect of the present invention, there is provided an electronic apparatus including the housing according to any one of the first to fourth aspects described above.
According to the electronic device according to the fifth aspect of the present invention, the effect of the invention according to any one of the first to fourth aspects described above can be obtained in the electronic device.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<Schematic configuration of inkjet printer>
First, a schematic configuration of an inkjet printer 50 as an “electronic device” according to the present invention will be described.
FIG. 1 is an external perspective view of the ink jet printer 50. FIG. 2 is a cross-sectional side view of a main part of the ink jet printer 50.

  An operation panel 4 having various operation buttons and a liquid crystal display panel 10 for performing various displays are disposed on the upper surface of the printer body 1. The printer cover 5 is pivotally supported on the operation panel 4 so as to be rotatable about a rotation shaft 6. When the ink jet printer 50 is not used, the printer cover 5 is closed, so that the operation panel 4 and the liquid crystal display panel 10 disposed on the upper surface of the printer body 1 are covered and protected by the printer cover 5. The The liquid crystal display panel 10 is pivotally supported on the operation panel 4 so as to be rotatable about a shaft portion 101 as a rotation axis, and can be used while being rotated in the direction indicated by the symbol C to maintain a standing posture. it can. The printer main body 1 is provided with a handle 20 for rotating the inkjet printer 50 so as to be rotatable.

  A discharge port 7 through which the recording paper P after execution of recording is discharged is provided on the front surface of the printer body 1, and a discharge tray 3 is disposed so that the discharge port 7 can be opened and closed. The discharge tray 3 is pivotally supported by the printer main body 1 so as to be rotatable. When the ink jet printer 50 is not used, the discharge port 7 is covered with the discharge tray 3 by closing the discharge tray 3. Further, when the ink jet printer 50 is used, the recording paper P after execution of recording discharged from the discharge port 7 is in an opened state by opening the discharge tray 3 in the direction indicated by the symbol A. Stacked on the discharge tray 3.

The ink jet printer 50 includes a transport driving roller 51, a transport driven roller 52, a platen 53, a discharge drive roller 54, a discharge driven roller 55, a carriage 61 and a recording head 62 as means for executing recording on the recording paper P in the printer body 1. In preparation. Further, the ink jet printer 50 includes a loading unit 71, an edge guide 72, a feeding roller 73, and a retard roller that constitute an automatic feeding device that automatically feeds the recording paper P one by one toward the recording unit. 74 is provided. On the upper surface of the printer main body 1, a feeding opening 2 for supplying the recording paper P by the automatic feeding device is provided. The printer cover 5 opened in the direction indicated by the symbol B functions as a feeding tray on which the recording paper P fed by the automatic feeding device is placed. It is disposed at a position facing the opening 2. A known edge guide 72 is disposed on the placement portion 71 so as to be slidable in the width direction of the recording paper P (direction intersecting the transport direction Y), and the width of the recording paper P according to the size of the recording paper P. The mounting position in the direction can be defined. The recording paper P placed on the opened printer cover 5 is pressed against the outer peripheral surface of the feeding roller 73 by a hopper (not shown), and is driven to the transport driving roller 51 by the driving rotation of the feeding roller 73. It is sent toward. At this time, the other recording paper P is separated from the uppermost recording paper P by the known driven rotational resistance of the retard roller 74, and the double feeding of the recording paper P is prevented.

  The recording paper P fed by the driving rotation of the feeding roller 73 is sandwiched between the transport driving roller 51 and the transport driven roller 52, and the platen with a predetermined transport amount in the transport direction Y by the driving rotation of the transport driving roller 51. 53 is conveyed. At the bottom of the carriage 61, a recording head 62 that forms dots by ejecting ink onto the recording surface of the recording paper P is disposed. The carriage 61 is supported so as to be able to reciprocate in a direction substantially perpendicular to the transport direction Y while maintaining a state in which the head surface of the recording head 62 and the recording surface of the recording paper P on the platen 53 are substantially parallel and at a constant interval. Has been.

  The recording paper P conveyed on the platen 53 forms dots by ejecting ink from the head surface of the recording head 62 to the recording surface of the recording paper P while the carriage 61 reciprocates in a direction substantially perpendicular to the conveyance direction Y. Recording on the recording surface is executed by alternately repeating the operation of carrying out the recording paper P by the predetermined conveyance amount in the conveyance direction Y by the driving rotation of the conveyance driving roller 51. The recording paper P after ink ejection is sandwiched between the discharge drive roller 54 and the discharge driven roller 55 and is conveyed in the conveyance direction Y by the drive rotation of the discharge drive roller 54. The recording paper P after recording is discharged and stacked on the discharge tray 3 opened from the discharge port 7.

<Operation panel configuration>
The “housing” of the inkjet printer 50 according to the present invention includes a printer main body 1 as a “housing main body” and an operation panel 4 as a “housing part”. Hereinafter, the configuration of the operation panel 4 will be described with reference to FIGS. 3 and 4.
FIG. 3 is a perspective view of the operation panel 4 viewed from an oblique front side. FIG. 4 is a perspective view of the operation panel 4 as viewed obliquely from the rear side.

A front left concave portion 41 and a right front concave portion 42 as “concave portions” are provided on the front side of the peripheral portion of the operation panel 4. On the rear side of the peripheral portion of the operation panel 4, a left rear convex portion 45 and a right rear convex portion 46 are provided as “convex portions”. On the left and right sides of the peripheral portion of the operation panel 4, a left concave portion 43 and a right concave portion 44 are provided.
Various operation buttons are mounted on the operation button unit 47. The liquid crystal panel 10 is rotatably supported by the liquid crystal panel mounting portion 48. The cover bearing portion 49 pivotally supports the printer cover 5 so as to be rotatable.

<Printer configuration>
Next, the configuration of the printer main body 1 will be described with reference to FIGS.
FIG. 5 is a perspective view of the printer main body 1 viewed from an oblique front side. FIG. 6 is a perspective view of the printer main body 1 viewed from an obliquely rear side. FIG. 7 is a plan view of the printer main body 1.

  The printer main body 1 is formed by a front surface 11, a left side surface 12, a right side surface 13, a rear surface 14 and a bottom surface 15, and an upper surface side is an opening 18 as shown in the drawing. The front port 11 is provided with the discharge port 7. Bearing holes 16 for pivotally supporting the discharge tray 3 so as to be rotatable are provided on both side portions on the lower side of the discharge port 7. The left side surface 13 and the right side surface 14 are provided with handle mounting holes 17 for pivotally supporting the handle 20 so as to be rotatable.

  Although the rear surface 14 and a part of the bottom surface 15 are not shown, the printer main body 1 has a series of box-shaped printer main bodies 1 in a state where other parts not shown are attached to the rear surface 14 and the bottom surface 15. In order to facilitate understanding of the invention, illustration is omitted for the sake of explanation.

  A left front convex portion 21 and a right front convex portion 22 as “convex portions” are provided on the inner surface of the front surface 11 constituting the opening 18. A left rear concave portion 25 and a right rear concave portion 26 as “concave portions” are provided on the inner side surface of the rear surface 14 constituting the opening 18. On the inner side surfaces of the right side surface 12 and the left side surface 13 constituting the opening 18, a left convex portion 23 and a right convex portion 24 for backlashing are provided.

<Attachment structure of operation panel to printer body>
Next, the mounting structure of the operation panel 4 to the printer main body 1 will be described with reference to FIGS.

FIG. 8 is a perspective view of the printer main body 1 with the operation panel 4 attached as viewed obliquely from the front side. FIG. 9 is a perspective view of the printer main body 1 with the operation panel 4 attached, as viewed obliquely from the rear side. FIG. 10 is a plan view of the printer main body 1 with the operation panel 4 attached.
The printer main body 1 includes a plurality of “convex portions” (a left front convex portion 21, a right front convex portion 22, a left rear portion) provided on either the inner surface of the opening 18 of the printer main body 1 or the peripheral portion of the operation panel 4. A convex portion 45 and a right rear convex portion 46) and a plurality of “recess portions” (the left front concave portion 41, the right front concave portion 42, the left rear concave portion 25, and the right rear concave portion 26) provided on the other side are respectively concavo-convexly engaged with each other. 4 is attached. The printer main body 1 is attached in a state where the operation panel 4 as a “lid” is fitted inside the opening 18 as shown in the figure. The opening 18 is in a state where a portion other than the feeding opening 2 is closed by the operation panel 4.

  11 and 12 are enlarged views of the operation panel 4 and the rear part of the printer main body 1.

11A is an enlarged perspective view of the left rear convex portion 45 of the operation panel 4, and FIG. 11B is an enlarged perspective view of the left rear concave portion 25 of the printer body 1. It is.
The left rear convex portion 45 provided on the peripheral portion of the operation panel 4 is provided on the peripheral portion of the portion corresponding to the inner surface of the corner portion of the rear surface 14 of the printer main body 1 (the portion where the left rear concave portion 25 is provided). ing. As shown in the drawing, the left rear convex portion 45 is configured by being closely arranged in a direction in which the claw portion 452 and the claw portion 454 intersect relatively. The claw portion 452 is provided at a distal end portion of an arm portion 451 that protrudes from the peripheral portion along the inner surface of the rear surface 14 of the printer main body 1. The claw portion 454 is provided at the distal end portion of the arm portion 453 that protrudes from the peripheral portion along the inner surface of the rear surface 14 of the printer body 1 (FIG. 11A).

  A left rear concave portion 25 provided on the inner side surface of the rear surface 14 of the printer main body 1 is provided at a corner portion of the rear surface 14 of the printer main body 1. The left rear recessed part 25 is comprised by the hole 251 and the latching end 252 (FIG.11 (b)). Since the hole 251 is provided on the rear surface 14 which is not conspicuous, the hole 251 is a through hole as illustrated in order to make the manufacturing of the printer main body 1 easier. However, the hole 251 is provided only on the inner surface of the rear surface 14. It functions as a “recess”, and the present invention can be implemented without using a through hole. Further, the locking end 252 constitutes an upper end portion of a recess (not shown) formed on the inner side surface of the rear portion of the printer body 1 with a rear panel (not shown) attached to the lower side of the rear surface 14.

12A is an enlarged perspective view of the right rear convex portion 46 of the operation panel 4, and FIG. 12B is an enlarged perspective view of the right rear concave portion 26 of the printer body 1. It is.
Similarly, the right rear convex portion 46 provided on the peripheral portion of the operation panel 4 is a peripheral portion of the portion corresponding to the inner surface of the corner portion (the portion where the right rear concave portion 26 is provided) of the rear surface 14 of the printer main body 1. Is provided. As shown in the drawing, the right rear convex portion 46 is configured by being closely arranged in a direction in which the claw portion 462 and the claw portion 464 cross each other relatively. The claw portion 462 is provided at the distal end portion of the arm portion 461 that protrudes from the peripheral portion along the inner surface of the rear surface 14 of the printer main body 1. The claw portion 464 is provided at the distal end portion of the arm portion 463 projecting from the peripheral portion along the inner surface of the rear surface 14 of the printer main body 1 (FIG. 12A).

  A right rear recess 26 provided on the inner side surface of the rear surface 14 of the printer main body 1 is provided at a corner portion of the rear surface 14 of the printer main body 1. The right rear concave portion 26 includes a hole 261 and a locking end 262 (FIG. 12B). Since the hole 261 is provided on the rear surface 14 which is not conspicuous like the hole 251, the hole 261 is a through hole as illustrated in order to make the printer body 1 easier to manufacture. It functions as a “recessed portion” provided on the inner surface, and the present invention can be implemented without using a through hole. Similarly to the locking end 261, the locking end 262 is a recess (not shown) configured on the inner side surface of the rear portion of the printer body 1 with a rear panel (not shown) attached to the lower side of the rear surface 14. ).

FIGS. 13 and 14 are enlarged perspective views of the engagement portion between the right rear convex portion 46 of the operation panel 4 and the right rear concave portion 26 of the printer main body 1. FIG. 13 is a perspective view seen from an oblique front side, and FIG. 14 is a perspective view seen from an oblique rear side.
15 and 16 are cross-sectional views showing an enlarged engagement portion between the right rear convex portion 46 of the operation panel 4 and the right rear concave portion 26 of the printer body 1. 15 is a cross-sectional view seen from the left side, and FIG. 16 is a cross-sectional view seen from the front.
Note that the engagement portion between the left rear convex portion 45 of the operation panel 4 and the left rear concave portion 25 of the printer body 1 is exactly the same except for the left-right symmetrical structure, and therefore illustration and description thereof are omitted.

  When the operation panel 4 is attached to the printer main body 1, as shown in the drawing, the claw portion 462 of the operation panel 4 is fitted into the hole 261 of the printer main body 1 (state where the concave and convex portions are engaged). The claw portion 464 is engaged with the locking end 262 of the printer main body 1. That is, the corner portion of the rear surface 14 is disposed close to the inner surface of the printer body 1 and the concave and convex engagement structure of the operation panel 4 in a direction that intersects relatively.

  For example, when an impact in the direction indicated by Fx acts on the printer main body 1, the engagement between the claw portion 462 of the operation panel 4 and the hole 261 of the printer main body 1 is fitted to the claw portion 462 and the hole 261. A force in a direction crossing the combined direction acts. That is, a force is applied to the engagement portion between the claw portion 462 of the operation panel 4 and the hole 261 of the printer body 1 in a direction in which the concave and convex engagement is released while the claw portion 462 and the hole 261 are laterally displaced. On the other hand, a force in a direction in which the claw portion 464 is deeply fitted to the locking end 262 acts on the engaging portion between the claw portion 464 of the operation panel 4 and the locking end 262 of the printer body 1.

  That is, even when a force in a direction in which the concave and convex engagement between the claw portion 462 and the hole 261 is easily released due to an impact in the direction indicated by the symbol Fx acting on the printer main body 1, the claw portion arranged in the intersecting direction The engagement between 464 and the locking end 262 is firmly held. In addition, the concave / convex engaging portion between the claw portion 462 and the hole 261 is provided integrally with the engaging portion between the claw portion 464 and the locking end 262, so that it can be viewed as an integral rigid body. Can do. Accordingly, the engagement between the claw portion 464 and the locking end 262 is firmly held against the impact in the direction indicated by the symbol Fx acting on the printer main body 1, so that the unevenness between the claw portion 462 and the hole 261 is maintained. It is possible to regulate the disengagement.

  On the other hand, when an impact in the direction indicated by the reference symbol Fy intersecting the reference symbol Fx acts on the printer main body 1, the engaging portion between the claw portion 464 of the operation panel 4 and the locking end 262 of the printer main body 1 has a claw. A force in a direction crossing the fitting direction between the portion 464 and the locking end 262 acts. In other words, the engaging portion between the claw portion 464 of the operation panel 4 and the locking end 262 of the printer main body 1 has a force in a direction in which the claw portion 464 and the locking end 262 are displaced laterally while the concave and convex engagement is released. Act. On the other hand, a force in a direction in which the claw portion 462 is fitted deeper into the hole 261 acts on the engagement portion between the claw portion 462 of the operation panel 4 and the hole 261 of the printer body 1.

  That is, even if a force in a direction in which the concave-convex engagement between the claw portion 464 and the locking end 262 is easily applied due to an impact in the direction indicated by the symbol Fy that acts on the printer main body 1, it is arranged in an intersecting direction. The engagement between the claw portion 462 and the hole 261 is firmly held. In addition, the concave / convex engaging portion between the claw portion 464 and the locking end 262 is integrally provided adjacent to the engaging portion between the claw portion 462 and the hole 261, so that it can be viewed as an integral rigid body. Can do. Accordingly, the engagement between the claw portion 462 and the hole 261 is firmly held against the impact in the direction indicated by the symbol Fy acting on the printer body 1, so that the unevenness between the claw portion 464 and the locking end 262 is maintained. It is possible to regulate the disengagement.

  Further, the arm portion 461 provided with the claw portion 462 at the tip has a robust structure provided with a rib as shown in the figure, and is hardly bent and deformed. This is because the concave and convex engagement between the claw portion 462 of the operation panel 4 and the hole 261 of the printer main body 1 can be easily released by bending and deforming the rear surface 14 of the printer main body 1. That is, in order to give a certain strength to the concave-convex engagement with the hole 261 provided in the rear surface 14, the arm portion 461 provided with the claw portion 462 has a robust structure that hardly bends.

  On the other hand, the arm part 463 provided with the claw part 464 at the tip is formed in a thin plate shape without a rib as shown in the figure, and is relatively easily deformed. This is to facilitate engagement and disengagement between the claw portion 464 and the locking end 262 of the printer main body 1 when the operation panel 4 is attached and detached. Note that the degree of ease of bending and deformation of the arm portion 463 is set according to the degree of ease of deformation of the printer body 1 and the like.

  Further, the arm portion 463 provided with the claw portion 464 at the tip is longer than the arm portion 461 provided with the claw portion 462 at the tip. As described above, the length of the arm portion 461 and the arm portion 463 that are arranged close to each other in a relatively intersecting direction is relatively different, so that the arm portion 461 is bent when the operation panel 4 is attached to the printer body 1. The engagement timing between the claw portion 462 and the hole 261 due to the deformation and the engagement timing between the claw portion 464 and the locking end 262 due to the bending deformation of the arm portion 463 can be shifted from each other. Accordingly, it is possible to prevent the arm portion 461 and the arm portion 463 from interfering with each other when the operation panel 4 is attached to the printer main body 1, so that the operation of attaching the operation panel 4 can be performed smoothly.

Further, when the arm portion 463 provided with the claw portion 464 is bent and deformed more than a certain distance in a direction away from the locking end 262, the arm portion 461 is brought into contact with and engaged with the side end of the arm portion 461, and the bending deformation is restricted. It has come to be. That is, by restricting the bending deformation of the arm portion 463 that is relatively easy to be bent and deformed at the side end of the arm portion 461, the claw portion 464 at the tip of the arm portion 463 is engaged with the printer main body 1 by an impact acting on the printer body 1. It can control more reliably that it will remove from toe 262. Thereby, the possibility that the operation panel 4 is detached from the printer main body 1 due to an impact acting on the printer main body 1 due to dropping or the like can be further reduced.
In the case where the arm portion 461 is also configured to be easily bent and deformed, the arm portion 461 and the arm portion 463 are regulated in a mutually complementary manner and directly, and both the arm portion 461 and the arm portion 463 are bent and deformed. Is preferably regulated.

<Effect of the invention>
As described above, the “casing” of the ink jet printer 50 according to the present invention is provided in the printer main body 1 by dropping or the like by providing two or more concave and convex engaging portions that are arranged close to each other in a relatively intersecting direction. With respect to the impact which acts, the two or more uneven | corrugated engagement parts can mutually restrict | limit mutually, and it can prevent that uneven | corrugated engagement is removed. Therefore, the possibility that the operation panel 4 is detached from the printer main body 1 due to an impact acting on the printer main body 1 due to dropping or the like can be reduced.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say.

1 is an external perspective view of an ink jet printer. It is principal part side sectional drawing of an inkjet printer. It is the perspective view of the operation panel seen from the diagonally front side. It is the perspective view of the operation panel seen from the diagonally back side. FIG. 2 is a perspective view of a printer body viewed from an oblique front side. FIG. 2 is a perspective view of a printer body viewed from an obliquely rear side. It is a top view of a printer main body. It is the perspective view which looked at the printer main body which attached the operation panel from diagonally forward. It is the perspective view which looked at the printer main body which attached the operation panel from diagonally back. FIG. 3 is a plan view of the printer body with an operation panel attached. 2 is an enlarged view of a rear portion of an operation panel and a printer main body. 2 is an enlarged view of a rear portion of an operation panel and a printer main body. FIG. 3 is an enlarged perspective view of an engagement portion between an operation panel and a printer main body. FIG. 3 is an enlarged perspective view of an engagement portion between an operation panel and a printer main body. FIG. 4 is a side sectional view of an uneven engagement portion between an operation panel and a printer main body. FIG. 4 is a side sectional view of an uneven engagement portion between an operation panel and a printer main body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Printer main body, 4 Operation panel, 11 Front surface, 12 Left side surface, 13 Right side surface, 14 Rear surface, 15 Bottom surface, 18 Opening part, 21 Left front convex part, 22 Right front convex part, 23 Left convex part, 24 Right convex part, 25 Left rear concave portion, 26 Right rear concave portion, 41 Left front concave portion, 42 Right front concave portion, 43 Left front concave portion, 44 Right concave portion, 45 Left rear convex portion, 46 Right rear convex portion, 50 Inkjet printer, 51 Conveyance drive roller, 52 Conveyance driven roller , 53 Platen, 54 Ejection drive roller, 55 Ejection driven roller, 61 Carriage, 62 Recording head, P recording paper, Y Recording paper conveyance direction

Claims (4)

A housing body having an opening, and a housing component attached to the opening of the housing body,
A plurality of convex portions provided on either the inner side surface of the opening of the housing main body or a peripheral portion of the housing component and a plurality of concave portions provided on the other are respectively engaged with the housing. A housing in which the housing component is attached to a main body,
The casing component is adjacent to a peripheral portion of a portion corresponding to an inner surface of at least one of the corner portions of the opening in a direction in which two or more of the convex portions or the concave portions relatively intersect with each other. Has been placed ,
The peripheral part of the casing part is provided with a plurality of arm parts projecting along the inner side surface of the casing body, and the convex part or the concave part is provided at the tip part of each arm part,
The casing component has two or more arm portions provided with the convex portions or the concave portions arranged in proximity to each other in a direction relatively intersecting with a portion corresponding to the inner side surface of the corner portion, and the concave and convex portions are engaged with each other. A housing characterized in that one arm portion to be deformed in the direction of disengagement is engaged so that another arm portion restricts the deformation . The case according to claim 1 , wherein the case component is provided with the convex portion or the concave portion that are arranged close to each other in a direction relatively intersecting with a portion corresponding to an inner surface of the corner portion. A casing characterized in that the lengths of the parts are relatively different. 3. The casing according to claim 1 , wherein the casing component is a lid that closes the opening of the casing main body. The electronic device provided with the housing | casing as described in any one of Claims 1-3 .

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