JP5287224B2 - Image recording apparatus and waterproof structure of image recording apparatus - Google Patents

Description

  The present invention relates to an image recording apparatus that records an image on a recording medium, and a waterproof structure of the image recording apparatus.

Conventionally, in an image recording apparatus, an example is disclosed in which an operation panel is covered with a water-repellent film in order to provide waterproofness (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 2006-276480

When the operation panel is covered with a film as in the conventional image recording apparatus, the operability of the operation panel is strongly restricted by the characteristics of the film. In other words, even if the operation panel is pressed, it can be operated only within the range permitted by the elasticity of the film. For example, when the operation panel is covered with a hard film rich in durability, only the amount that the film bends can be operated. The time stroke cannot be secured. Further, when a flexible film is used for improving operability, it is difficult to ensure the durability of the film. For this reason, a waterproof structure using a film cannot be applied to switches that are deeply submerged, and a complicated waterproof structure using packing or the like has been used.
The present invention has been made in view of the above-described circumstances, and an object of the present invention is to enable waterproofing of a switch while ensuring good operability with a simple structure in an image recording apparatus.

In order to solve the above problems, the present invention provides a discharge port for discharging a recording medium on which an image is recorded provided on the front surface of the main body, and an upper panel member constituting at least a part of the upper surface and the rear surface of the main body. An operation element that is operated to be pressed, and the upper surface panel member has a hole that is accommodated in the upper surface of the upper surface panel member that constitutes the upper surface of the main body and that penetrates the operation element at the bottom. A switch hole in the formed recess, a meat stealing hole penetrating the upper surface of the upper panel member, and a sheet made of urethane elastomer that covers the switch hole and the meat stealing hole are provided , and the back surface of the sheet is the switch Provided is an image recording apparatus characterized in that it is bonded and fixed around a hole, and the upper surface of the operation element can be contacted and separated from the rear surface of the sheet .
According to this configuration, in the configuration including the upper panel member that constitutes at least a part of the upper surface and the rear surface of the main body, the switch hole and the meat stealing hole for accommodating the operation element of the push button switch are covered with the urethane elastomer sheet. With the use of a urethane elastomer sheet that is highly durable and flexible, it is possible to prevent operation of the operation element and the meat stealing hole. It can be pushed in and operated with a good operational feeling. Thereby, it can waterproof with a simple structure, without impairing the operativity of the push button type operation element with which an image recording device is provided. In addition, in order to form an upper panel with a switch hole for accommodating an operation element with a large stroke by molding with a mold, a meat stealing hole is provided together with the switch hole in a configuration provided with a meat stealing hole for preventing sink marks. Can be easily waterproofed, so that the waterproof property can be secured without impairing the processability of the image recording apparatus. Since the upper panel member provided with the switch hole constitutes at least a part of the upper surface and the rear surface of the image recording apparatus main body, the entire upper surface of the image recording apparatus is protected by waterproofing the switch hole and the meat stealing hole. The waterproof performance of the image recording apparatus can be greatly enhanced with a simple configuration.

The said structure WHEREIN: While the back surface of the said sheet | seat is adhere | attached and fixed to the circumference | surroundings of the said switch hole, the upper surface of the said operation element may be contactable / separable to the back surface of the said sheet | seat.
According to this configuration, the sheet can be easily fixed to the switch hole by adhesion, and the upper surface of the operation element does not stick to the back surface of the sheet, so that the expansion and contraction of the sheet is not hindered. For this reason, a sheet | seat can fully expand-contract and can ensure favorable operativity.

The upper surface of said body, said a inclined plane lower front side is higher rear side of the body with respect to the installation surface of the main body, the upper surface of the upper panel member, the thick portion on the rear surface of the rear side of the switch hole The meat stealing hole may be positioned in the thick portion below the switch hole.
In this case, the switch hole and the meat stealing hole located below the switch hole and located downstream when the liquid flows can be easily and reliably waterproofed by the sheet.
Furthermore, the operator may be an operation of the power switch for switching a power supply on and off of the image recording apparatus.
In this case, the power switch can be waterproofed with a structure that is simple and easy to repair such as replacement. In addition, a waterproof structure can be applied without sacrificing operability, corresponding to a power switch that is often set to a deep push-in amount to prevent erroneous operation.

Further, the present invention is a waterproof structure of an image recording apparatus that records an image on a recording medium and discharges the recording medium from a discharge port provided on the front surface of the main body, and includes at least an upper surface and a rear surface of the main body. A switch hole in a recess in which an operation element to be pressed is housed in a position corresponding to the upper surface of the main body of an upper panel member constituting a part and a hole penetrating the operation element is formed in a bottom part, the upper panel A meat stealing hole penetrating the upper surface of the member, and a urethane elastomer sheet covering the switch hole and the meat stealing hole are disposed, and the back surface of the sheet is adhesively fixed around the switch hole, The waterproof structure of the image recording apparatus is provided, wherein the upper surface of the operation element can be brought into contact with and separated from the back surface of the sheet .
According to this configuration, in the configuration including the upper panel member that constitutes at least a part of the upper surface and the rear surface of the main body, the switch hole and the meat stealing hole for accommodating the operation element of the push button switch are covered with the urethane elastomer sheet. With the use of a urethane elastomer sheet that is highly durable and flexible, it is possible to prevent operation of the operation element and the meat stealing hole. It can be pushed in and operated with a good operational feeling. Thereby, it can waterproof with a simple structure, without impairing the operativity of the push button type operation element with which an image recording device is provided. In addition, in order to form the top panel with a switch hole for accommodating an operation element with a large stroke amount by resin molding with a mold, in the configuration with a meat stealing hole for preventing sink marks, a meat stealing hole is also provided together with the switch hole Can be easily waterproofed, so that the waterproof property can be secured without impairing the processability of the image recording apparatus. And since the upper surface panel member constitutes at least a part of the upper surface and the back surface of the image recording apparatus main body, the entire upper surface of the image recording apparatus can be waterproofed by waterproofing the switch hole and the meat stealing hole, With a simple configuration, the waterproof performance of the image recording apparatus can be greatly enhanced.
Further, the present invention is a mold corresponding to the shape of the thick portion in which the bottom portion of the switch hole of the top panel member constituting the top surface and the back surface of the main body and the stealing hole is formed on the back side of the switch hole, After the upper panel member is resin-molded and the upper panel member is resin-molded, the mold is released substantially perpendicularly to the rear surface, and the switch hole and the meat stealing hole are covered with urethane elastomer. The sheet is bonded to the upper surface of the upper panel member.

  According to the present invention, waterproofing can be performed with a simple configuration without impairing the operability of the push button switch provided in the image recording apparatus.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing a thermal printer 1 according to an embodiment to which the present invention is applied.
A thermal printer 1 (hereinafter referred to as printer 1) as an image recording apparatus uses a roll paper (not shown) in which thermal paper is wound in a roll shape as a recording medium, and rolls by a recording head (not shown) provided with a heating element. It is a printer that records images containing text on paper.
In the present embodiment, as an example, a printer 1 that is a so-called kitchen printer that is used in a kitchen of a restaurant or the like and records and outputs a ticket slip that informs a cook or the like in the kitchen of the order contents in accordance with an order of food or the like. Will be described.

As shown in FIG. 1, a main body case 10 (main body) of the printer 1 is configured by combining a front panel 11 and a front upper panel 12 that constitute the front surface of the printer 1 and a substantially box-shaped case cover 20. The front panel 11, the front upper panel 12, and the case cover 20 are all molded products of resin. A paper discharge port 16 for discharging the roll paper on which an image is recorded by the printer 1 is opened on the front surface of the printer 1, and the front upper panel 12 is disposed on the paper discharge port 16. A front panel 11 is disposed on the front panel.
The front panel 11 is attached to the front surface of the printer 1 so as to be openable and closable, and a release lever 13 is provided on the side of the front panel 11. By operating the release lever 13, the front panel 11 opens to the front side, and a roll paper storage portion (not shown) that stores the roll paper is exposed inside the printer 1. Therefore, the user can load the roll paper into the main body case 10 by operating the release lever 13 and opening the front panel 11.
The front upper panel 12 is disposed across the front upper portion of the printer 1 and the front portion of the upper surface of the printer 1. The front upper panel 12 is a cover that covers the cutter mechanism (not shown) that is positioned above the paper discharge port 16 and cuts the roll paper.
Further, at the bottom of the front panel 11, a display unit 14 having an LED that lights / flashes in accordance with the operation state of the printer 1 (power on / off, presence / absence of error, remaining paper state, etc.), and roll A feed button 15 is provided for the user to instruct paper feeding.

On the other hand, the case cover 20 is composed of an upper panel member 21 that constitutes the upper surface and the upper rear portion of the printer 1, a rear panel member 22 that constitutes the lower rear portion of the printer 1, and a bottom panel member 23 that constitutes the bottom surface of the printer 1. Composed.
On the upper surface of the printer 1, the upper panel member 21 is associated with the front upper panel 12. The bottom of the groove 17 formed at the boundary between the upper panel member 21 and the front upper panel 12 is closed on the upper panel member 21 side, and is waterproofed by a packing (not shown) on the front upper panel 12 side.

The upper surface 21 a of the upper panel member 21 is an inclined surface that is inclined with respect to the installation surface of the printer 1 from the rear end of the groove 17 to the back surface of the printer 1, and the front surface side of the printer 1 is high and the back surface side is low. The back surface 21b and the back panel member 22 of the top panel member 21 constitute a plane that is substantially perpendicular to the installation surface.
Further, a power switch 30 for switching the power of the printer 1 on and off is provided on the side near the front end of the upper surface 21a. The power switch 30 is a push button switch that is pushed in with a predetermined amount of stroke. Each time the power switch 30 is pushed, the printer 1 is turned on and off.
In the vicinity of the power switch 30, a meat stealing hole 21 c is formed in order to prevent sinking of the plate thickness that occurs when the top panel member 21 is molded by a mold. The meat stealing holes 21 c are holes that penetrate the upper surface 21 a of the upper panel member 21, and a plurality of the meat stealing holes 21 c are formed on the back side of the printer 1 with respect to the power switch 30.

FIG. 2 is a plan view showing the vicinity of the power switch 30.
The upper surface 21 a is formed with a switch hole 26 that opens in a substantially rectangular shape in plan view to accommodate the power switch 30. The switch hole 26 has a substantially rectangular shape that is slightly smaller than the switch hole 26. The formed operation element 31 is disposed. The operation element 31 is an operation unit of the power switch 30 and is pressed to turn on / off the power of the printer 1.
As described above, since the printer 1 is used in a kitchen, highly viscous liquids such as water and various sources may enter the power switch 30. It is conceivable to enter when operating. Therefore, a sheet 40 that prevents liquid from entering the power switch 30 is attached to the power switch 30 of the printer 1.

The sheet 40 is a substantially rectangular sheet that covers the power switch 30 and the meat stealing hole 21c. The sheet 40 is made of urethane elastomer, and has excellent characteristics such as water resistance, flexibility, elasticity, durability, mechanical strength, oil resistance, and weather resistance, which are characteristics of the urethane elastomer. For this reason, when the power switch 30 is pressed through the seat 40, the seat 40 can be bent and the power switch 30 can be pushed in without a particularly strong force, and the operation element 31 can be operated.
Here, as the urethane elastomer used for the sheet 40, any of polyester-based and polyether-based may be used, and the detailed composition, manufacturer, etc. are arbitrary.
The sheet 40 is a flat sheet on which no protrusions or the like are formed. However, the surface 40 may be provided with irregularities so that the presence of the power switch 30 can be known with the sense of touch of a finger.
Further, the sheet 40 may be transparent or opaque. In this embodiment, since the translucent sheet 40 is used, the operation position, that is, the pressing position display 40a indicating the position of the operation element 31 is printed. When the transparency of the sheet 40 is high, if the pressing position display 40a is printed on the back side of the sheet 40, the printing deterioration due to use can be prevented. In addition, when the transparent sheet 40 is used, the presence of the operation element 31 can be seen through the sheet 40. Therefore, a symbol or the like as an indication of the operation position may be attached to the upper surface of the operation element 31. .

3 is a cross-sectional view taken along the line AA ′ of FIG. 2, and FIG. 4 is a cross-sectional view taken along the line BB ′ of FIG. 3 and 4 show a state where the power switch 30 is not operated.
As shown in these sectional views, the upper panel member 21 is provided with a recess, and this recess serves as a switch hole 26. An operator 31 and an elastic member 32 that supports the operator 31 from below are disposed in the switch hole 26. The elastic member 32 is interposed between the operation element 31 and the bottom 25 of the switch hole 26, and supports the operation element 31 from below. When the operating element 31 is pressed, the operating element 31 is pushed downward by the elasticity of the elastic member 32, and when the pressing force to the operating element 31 is released, the elastic member 32 is restored and the operating element 31 is moved. Raise it to its original position.
Further, the lower part of the operation element 31 passes through a hole 25 a formed in the bottom part 25. An operation detection unit 33 mounted on the substrate 37 is disposed directly below the operation element 31. When the operation element 31 is pushed in, the lower end of the operation element 31 approaches or contacts the operation detection unit 33. The operation detection unit 33 is a switch type sensor that detects the approach or contact of the operation element 31, and the printer is controlled by a control device (not shown) mounted on the substrate 37 according to the detection state of the operation detection unit 33. 1 is switched on / off.

A stepped portion 21d that is recessed by one step from the upper surface 21a is formed in the peripheral portion of the switch hole 26. The step portion 21d is a step for facilitating the pressing operation of the operating element 31 without the sheet 40, and is formed so as to surround the switch hole 26 as shown in FIG. In disposing the sheet 40, a spacer 35 is attached to the step portion 21d to reduce the height difference from the upper surface 21a, and the upper surface 21a and the upper surface of the spacer 35 are substantially flush with each other.
The sheet 40 is fixed to the upper surface 21 a with a double-sided adhesive tape 36. The double-sided adhesive tape 36 is obtained by adding an adhesive to both sides of a synthetic resin film. The double-sided adhesive tape 36 is attached to the periphery of the switch hole 26 and the meat stealing hole 21c and the upper surface of the spacer 35. The surface and the sheet 40 are bonded and fixed.

By the way, in a state where the power switch 30 is not pressed, the upper surface of the operation element 31 and the upper surface of the stepped portion 21d are positioned at substantially the same height, and the upper surface of the operation element 31 is separated from the upper surface 21a and the seat 40 by one step. Located below. Further, in the side view of FIG. 3, the upper surface of the operation element 31 is inclined in accordance with the inclination of the upper surface 21 a and is positioned one step below the seat 40.
The double-sided adhesive tape 36 is disposed so as to avoid the upper surface of the operation element 31, the upper surface of the operation element 31 and the sheet 40 are not bonded, can be contacted and separated, and the operation element 31 is not operated. Sometimes, the operation element 31 and the seat 40 are separated from each other.
As described above, since the sheet 40 is excellent in flexibility and elasticity, it can be greatly expanded and contracted. However, when this sheet 40 is attached to another member, The stretchability is limited to the stretchability of another member. On the other hand, in the part where the sheet 40 is not attached to other members, the original stretchability of the sheet 40 is exhibited. In other words, in the present embodiment, the upper surface of the operation element 31 having a large area with respect to the sheet 40 is not fixed to the sheet 40 so that the sheet 40 can be greatly expanded and contracted. Thereby, even if the seat 40 is provided, an increase in pressing force required when operating the power switch 30 can be prevented.
In this configuration, the sheet 40 is bonded and fixed so as to surround the meat stealing hole 21 c and the switch hole 26, so that liquid can be prevented from entering the meat stealing hole 21 c and the switch hole 26 from the outside.
In addition, if the adhesive material of the double-sided pressure-sensitive adhesive tape 36 is such that no adhesive residue is generated, the trouble of removing the adhesive adhered to the upper surface 21a when replacing or removing the sheet 40 can be saved, and the workability is good. .

In the present embodiment, since the soft and flexible urethane elastomer is used as the material of the sheet 40, the sheet 40 is bent and pushed sufficiently even if the stroke amount required for the operation of the operation element 31 is relatively large. The operation element 31 can be operated with a good operational feeling. In addition, since urethane elastomer is high in strength and excellent in durability, it can withstand repeated operations of the power switch 30 and, in addition, because it is excellent in oil resistance, kitchens in which oil is used, etc. It is suitable as a waterproofing member used in.
If the power switch 30 is not switched unless the operation element 31 is stroked greatly, the power is turned on / off when the power switch 30 is unintentionally pressed, such as when the user accidentally touches the printer 1. Since it is not switched off, erroneous operation can be prevented. In such a configuration, the seat 40 of the present embodiment is useful as a means that can easily realize a waterproof structure without impairing operability. In addition, since the sheet 40 is pasted and the power switch 30 and the meat stealing hole 21c are covered, a waterproof structure can be easily realized, and repair such as replacement of the sheet 40 is easy. In addition, when the power switch 30 is waterproofed using a waterproof packing, there is a possibility that liquid or the like entering between the waterproof packing and the operation element 31 may solidify and hinder the operation. Then, since the power switch 30 is covered with the sheet 40, liquid or the like does not enter the power switch 30, so that the operability of the power switch 30 can always be kept in a good state.

  Further, the entire upper panel member 21 including the upper surface 21a and the back surface 21b is simultaneously molded by resin molding using a mold. At the time of this resin molding, the upper panel member 21 has a mold corresponding to the inner shape of the upper surface 21a including the bottom portion 25 with the back surface 21b on the lower side, that is, in the direction indicated by the arrow X in FIG. Manufactured by releasing the mold substantially vertically to the surface. For this reason, the back surface of the upper surface 21a must be shaped so that the mold can be moved in the direction of the arrow X, and it is impossible to form a recess that prevents the mold from entering and moving. A thick portion 29 thicker than the peripheral plate thickness is formed laterally. The thick portion 29 does not have a functional meaning and is a portion that occurs because the bottom portion 25 of the switch hole 26 is molded with resin. The thick portion 29 is less likely to drop in temperature than the surrounding portion when the resin-molded upper surface 21a is cooled, so that the thickness of the outer surface tends to sink. Therefore, in the printer 1, a thick stealing hole 21 c is provided in the thick portion 29 to prevent sinking of the plate thickness that occurs on the appearance surface.

  As described above, according to the embodiment to which the present invention is applied, in the configuration including the upper panel member 21, the switch hole 26 and the meat stealing hole 21c for accommodating the push button type operation element 31 are made of urethane elastomer. By covering with the sheet 40, liquid can be prevented from entering the operation element 31 and the meat stealing hole 21c, and by using the urethane elastomer sheet 40 rich in durability and flexibility, the stroke amount during operation is large. Even the operation element 31 can be pushed in sufficiently and can be operated with a good operational feeling. Thereby, it can waterproof with a simple structure, without impairing the operativity of the operation element 31 with which the printer 1 is provided. Further, in the configuration in which the anti-sinking meat stealing hole 21c is provided in order to form the upper panel member 21 by resin molding using a mold, the meat stealing hole 21c can be easily waterproofed together with the switch hole 26. Waterproofness can be secured without impairing performance. Since the upper panel member 21 provided with the switch hole 26 and the meat stealing hole 21c constitutes the upper surface and the rear surface of the main body 10, the upper surface of the printer 1 can be waterproofed by waterproofing the switch hole 26 and the meat stealing hole 21c. The whole can be waterproofed, and the waterproof performance of the printer 1 can be greatly enhanced with a simple configuration.

In addition, the sheet 40 can be easily fixed to the switch hole 26 by bonding, and the upper surface of the operation element 31 is not attached to the back surface of the sheet 40, so that the expansion and contraction of the sheet 40 is not hindered. For this reason, the sheet | seat 40 can fully expand-contract and can ensure favorable operativity.
Further, even if the meat stealing hole 21c is provided in the portion where the thick portion 29 is formed during resin molding, the sheet stealing hole 21c can be waterproofed together with the switch hole 26 by the sheet 40.
Furthermore, on the upper surface 21 a which is inclined with respect to the installation surface of the printer 1, the liquid flows by covering the meat stealing hole 21 c positioned below the switch hole 26 together with the switch hole 26 by the sheet 40. The meat stealing hole 21 c located on the downstream side of the case can be easily and reliably waterproofed by the sheet 40 simultaneously with the switch hole 26.
Further, the power switch 30 can be waterproofed with a structure that is simple and easy to repair such as replacement. In addition, a waterproof structure can be applied without sacrificing operability, corresponding to a power switch that is often set to a deep push-in amount to prevent erroneous operation.
In the above embodiment, the configuration in which the sheet 40 is attached to the upper surface 21a of the upper panel member 21 has been described as an example. However, the present invention is not limited to this, and corresponds to the thickness of the sheet 40. It is good also as a structure which provided the recessed part to perform and put the sheet | seat 40 in this recessed part.
As a modification of the present embodiment, FIG. 5 shows a configuration in which a recess 51 for attaching the sheet 40 is provided around the power switch 30. In the modification shown in FIG. 5, the same parts as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted.
In the configuration of the modified example, the upper surface 21 a is formed with a substantially rectangular recess 51 sized to accommodate the sheet 40. The recess 51 is a portion where the peripheral edge of the switch hole 26 is recessed to a height that is recessed by one step from the upper surface 21a. The depth of the recess 51 is substantially the same as the thickness of the sheet 40.
When the sheet 40 is pasted so as to be fitted into the recess 51, the sheet 40 does not become higher than the upper surface 21a, and the edge 40b of the sheet 40 does not protrude from the upper surface 21a. For this reason, it is possible to prevent an object or the like from being caught on the edge 40b of the sheet 40 and peeling off the sheet 40, and can be used comfortably for a long period of time.

  In addition, the said embodiment shows the one aspect | mode which applied this invention, Comprising: This invention is not limited to the said embodiment. For example, in the above embodiment, the printer 1 having the vertically long main body 10 has been described as an example. However, the present invention is not limited to this, and can be applied to a printer having a horizontally long or flat main body. . Moreover, although the switch hole 26, the meat stealing hole 21c, and the configuration covering the periphery thereof by the urethane elastomer sheet 40 have been described as examples, the present invention is not limited to this, and the switch hole 26 and A wider range including the meat stealing hole 21c may be covered with the sheet 40, and for example, a structure covered with the sheet 40 before the groove 17 may be used. Further, the shape of the operation element 31 and the switch hole 26 in the power switch 30, the stroke amount of the operation element 31, the depth of the step portion 21 d, and the like are arbitrary, and the upper surface panel member 21 constitutes the entire upper surface and the entire back surface of the main body 10. Of course, the upper panel member 21 may extend to the front surface of the printer 1, and the detailed configuration of the other printers 1 can be arbitrarily changed. The present invention is not limited to a thermal printer, but can be applied to various types of printers such as an ink jet type, a dot impact type, a thermal sublimation type, and an image recording apparatus other than the printer.

1 is a perspective view showing a printer according to an embodiment to which the invention is applied. It is a top view which shows the vicinity of a power switch. It is AA 'sectional drawing of FIG. It is BB 'sectional drawing of FIG. It is sectional drawing which shows the vicinity of the power switch in a modification.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Printer (image recording device), 10 ... Main body case (main body), 16 ... Paper discharge port, 21 ... Upper surface panel member, 21a ... Upper surface, 21b ... Back surface, 21c ... Meat stealing hole, 30 ... Power switch, 31 ... Operation element, 32 ... elastic member, 33 ... operation detection unit, 40 ... sheet.

Claims (5)

A discharge port provided on the front surface of the main body for discharging a recording medium on which an image is recorded;
An upper panel member constituting at least a part of the upper surface and the rear surface of the main body;
An operation element that is operated to be pressed,
The upper panel member has a switch hole in a recess in which a hole penetrating the operation element is formed at the bottom and the operation element is housed on the upper surface of the upper panel member constituting the upper surface of the main body, and the upper panel member A sheet made of urethane elastomer that covers the meat stealing hole penetrating the upper surface and the switch hole and the meat stealing hole ,
The image recording apparatus according to claim 1, wherein the back surface of the sheet is bonded and fixed around the switch hole, and the upper surface of the operation element can be contacted and separated from the back surface of the sheet . The upper surface of the main body is an inclined surface that is higher on the front side of the main body and lower on the back side than the installation surface of the main body,
The upper surface of the upper panel member is provided with a thick portion on the back side of the back side of the switch hole,
The thinned holes claim 1 Symbol placement image recording apparatus located in the thick portion of the lower than the switch hole. The operating element is an image recording apparatus according to claim 1 or 2 which is an operation of the power switch for switching the power on and off of the image recording apparatus. A waterproof structure of an image recording apparatus for recording an image on a recording medium and discharging the recording medium from a discharge port provided on the front surface of the main body,
An operation element to be pressed is housed in a position corresponding to the upper surface of the main body of the upper panel member constituting at least a part of the upper surface and the back surface of the main body, and a hole penetrating the operation element is formed at the bottom. A switch hole in the recessed portion, a meat stealing hole penetrating the upper surface of the upper surface panel member, and a sheet made of urethane elastomer covering the switch hole and the meat stealing hole ,
The waterproof structure of an image recording apparatus, wherein a back surface of the sheet is bonded and fixed around the switch hole, and an upper surface of the operation element can be brought into contact with and separated from the back surface of the sheet . Resin-molding the top panel member with a mold that corresponds to the shape of the bottom of the switch hole of the top panel member that constitutes the top and back surfaces of the main body and the thick-walled part with the meat stealing hole formed on the back side of the switch hole And
After the upper panel member is resin-molded, the mold is released substantially perpendicularly to the back surface,
A method for manufacturing a panel member, comprising: bonding a urethane elastomer sheet covering the switch hole and the meat stealing hole to an upper surface of the upper panel member.

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