JP3927102B2 - Tube with hollow case and tank case door member provided with the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a high-frequency heating apparatus that heat-treats an object to be heated by combining high-frequency heating and steam heating, and particularly relates to a connection between a water supply tank and a water supply pump of the high-frequency heating apparatus for a humidifying function.
[0002]
[Prior art]
Conventional high-frequency heating devices include a single-function type that only uses high-frequency heating and a combination range equipped with a convection heater that generates hot air in addition to high-frequency heating, and can be configured to supply high-frequency and steam to the heating chamber. A high-frequency heating apparatus is also being studied. As a high-frequency heating apparatus to which a steam generation function is added, various systems such as a system in which a boiler is provided outside the heating chamber and steam generated from the boiler is introduced into the heating chamber have been proposed (for example, see Patent Document 1). .)
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 9-101034 (FIG. 1)
[0004]
In the high-frequency heating device with a steam generation function, there are a water supply method for generating steam such as a method of supplying directly to a heater-heated water reservoir or a method of supplying from a water tank connected to the steam generation unit. . However, in the method of supplying directly to the water reservoir, when water is accumulated in the water reservoir and heated, the water in the water reservoir evaporates and concentrates, so-called scales such as calcium and magnesium contained in the water precipitate, It adheres to the inner surface of the heater or water reservoir. For this reason, it is necessary to frequently clean the water reservoir while reducing the thermal efficiency of evaporation, which is not preferable in terms of hygiene.
[0005]
In this respect, the method of supplying from the water tank is more convenient, but even if the method of using the water tank is used, if the water tank cannot be detached from the high-frequency heating device, the inside of the water tank becomes unsanitary. In addition, when a water tank is simply attached to the high-frequency heating device, the casing size of the high-frequency heating device is increased, and the installation area of the device is increased, thus making it impossible to save space. Furthermore, if a water tank is provided inside the high-frequency heating device, there is a risk of water leakage to the control circuit.
[0006]
Therefore, as a high-frequency heating device that is hygienic and easy to use, it can prevent water leakage into the device of the water tank without causing an increase in size of the device with a simple configuration, and is not adversely affected by heat from the heating chamber. In addition to supplying high frequency to the heating chamber at the high frequency generator and supplying steam to the heating chamber at the steam generator, a water tank for supplying water to the steam generator is attached to the outer surface of the high frequency heater. Arranged freely. By doing so, the water tank can be easily removed from the high-frequency heating device and cleaned, so that it is hygienic and easy to use.
[0007]
Hereinafter, a high-frequency heating apparatus to which a tube with a hollow case according to the present invention is applied will be briefly described with reference to the drawings.
FIG. 1 is an external perspective view of a high-frequency heating device according to the present invention.
In the figure, reference numeral 20 denotes a high-frequency heating device. The high-frequency heating device 20 supplies heating to the object to be heated by supplying at least one of high frequency (microwave) and steam to a heating chamber that houses the object to be heated. It is a cooker. There are a magnetron as a high frequency generator for generating high frequency, a steam generator for generating steam in the heating chamber, a circulation fan for stirring and circulating the air in the heating chamber, and a room for heating the air circulating in the heating chamber. A convection heater as an air heater, an infrared sensor for detecting the temperature in the heating chamber through a detection hole provided in the wall surface of the heating chamber, and a detachable water tank 40 connected to a water supply path to the steam generation unit I have.
The open / close door 21 provided on the front surface of the high-frequency heating device 20 of FIG. 1 is made of a transparent body so that the heating chamber can be seen, and an input operation section 22 is provided below the open / close door.
There are various types such as a start switch 221 for instructing the start of heating, an automatic cooking switch 222 for starting a heating program prepared in advance, a display panel 223, a changeover switch 224 for switching a heating method such as high-frequency heating and steam heating, and the like. The operation switch is connected.
[0008]
1 has a tank case door member 33, a door frame body 32 surrounding the outer periphery of the tank case door member 33, and an open / close button 31, and a water tank 40 is housed behind the tank case door member 33. .
[0009]
The water tank 40 is detachably provided on the side surface of the high-frequency heating device 20 as shown in the figure. There are three main features of the water tank 40.
(1) The water tank is detachably disposed at any position on the outer surface of the high-frequency heating device 20.
(2) The water tank 40 disposed close to the heating chamber of the high-frequency heating device 20 is less susceptible to the heat from the heating chamber.
(3) Even if there is water leakage from the water tank 40, the high-frequency heating device 20 is provided with waterproofing measures that are not affected by water leakage.
[0010]
Therefore, the point that the first water tank 40 is detachably disposed will be described.
FIG. 2 shows an exploded perspective view of a configuration in which a water tank is provided on the side surface of the high-frequency heating device.
A side heat insulating plate 35 is fixed on the side surface of the high-frequency heating device 20 with a predetermined space (first space) from the side wall plate on the heating chamber side to the outside of the heating device 20. A tank case body 50 is provided on the plate 35 with a predetermined space (second space) with respect to the side heat insulating plate 35. A water supply pump 61 is attached to the tank case body 50. A tank case door member 33 is pivotally supported on the tank case main body 50 so as to be openable and closable around an opening / closing axis, and a water tank 40 is interposed between the tank case main body 50 and the tank case door member 33. Placed and housed.
Further, a door frame 32 is attached to the outer periphery of the tank case door member 33. An opening / closing button 31 (FIG. 1) that is a door locking means for opening and closing the tank case door member 33 is provided between the door frame body 32 and the water tank 40. The open / close button 31 has a locking function of a locking member (not shown) for closing the tank case body 50 and the tank case door member 33. When the locking is released, the tank case door member 33 is The elastic device (not shown) urged in the opening direction of the door jumps out of the heating device 20.
By assembling these members, the water tank 40 has the external shape shown in FIG. 1 accommodated inside the high-frequency heating device 20.
[0011]
Next, FIG. 3 shows a procedure for taking out the water tank 40 from the high-frequency heating device 20. As shown in FIG. 3 (a), by pressing the open / close button 31 provided on the front side of the side surface of the high-frequency heating device 20 toward the inside of the heating device 20, as shown in FIG. The case door member 33 and the water tank 40 placed on the case door member 33 are opened outward from the side surface of the heating device 20 by a spring force. And as shown in FIG.3 (c), the water tank 40 is taken out by pulling out the water tank 40 to the front side of the heating apparatus 20. FIG.
[0012]
When the water tank 40 is to be accommodated, the tank case door member 33 is opened and the water tank 40 is slid into the tank case door member 33 and inserted (FIG. 3 (c)). Then, the water tank 40 is inserted to the back (FIG. 3B). Then, by pushing back the tank case door member 33 toward the inside of the heating device 20 (FIG. 3A), the tank case door member 33 is locked in the closed state of the door by the locking member 31 (FIG. 1). .
[0013]
The shape of the water tank 40 is a flat rectangular parallelepiped shape, as shown in an enlarged perspective view in FIG. 4. The tank body 43, the water intake tube 45, and the water supply port 47 are fixed to the tank body 43 so as to be detachable. It consists of a body 41.
An anti-slip projection 43a for gripping the water tank 40 is formed on one side end of the tank main body 43, and a drawer knob 41a used when the tank is taken out is provided on the upper surface of the tank lid body 41. Thus, the water tank 40 is easily attached and detached. The water tank 40 is made of a material having at least a part of the side surface of the tank main body 43 so that the liquid level can be confirmed. A scale 46 indicating the level of water in the tank is provided.
[0014]
Moreover, in this water tank 40, since the tank cover body 41 and the tank main body 43 can be isolate | separated, it has a hygienic and easy-to-use configuration that facilitates cleaning of the tank.
[0015]
FIG. 5 is a view for explaining the back surface of the tank case door member 33 shown in FIG. 2. This tank case door member 33 is formed by opening the tank case main body 43 (FIG. 4) having one surface of a flat rectangular parallelepiped. The water tank 40 is accommodated between the tank case body 50 and the covered surface. Therefore, as shown in FIG. 6, the water tank 40 is placed on the bottom surface 33a of the tank case door member 33, and is accommodated by being inserted along the upper guide 33b and the lower guide 33c in the direction of arrow A in the figure. The water tank 40 is positioned in the horizontal direction by slidingly contacting a rib (side guide) 33 d that protrudes from the side surface of the tank case door member 33.
At this time, the upper guide 33 b of the tank case door member 33 is engaged with a plate-shaped regulation guide 42 erected on the upper surface of the tank lid body 41 of the water tank 40, thereby regulating the insertion position of the water tank 40. To do.
As described above, by disposing the water tank 40 so as to be detachable from the heating device 20, water exchange can be facilitated and sanitary water supply can be performed. Further, since the water tank 40 is arranged on the side surface of the heating device 20, the heating operation from the front side of the heating device 20 is not affected at all, and the detaching operation of the water tank 40 is also performed by the tank case door member. By providing the rotation axis L of 33 on the back side of the heating device 20, the tank case door member 33 is opened on the front side and can be inserted and removed with good operability from the front side.
In FIG. 15, reference numeral 15 denotes a wall portion on the tube insertion side (see FIG. 6), and a tube insertion hole 15a is formed at the upper center.
[0016]
FIG. 7 is a perspective view showing a configuration in which a tank case door member is pivotally supported on the rotating shaft of the tank case main body and a water tank is accommodated between the two, and FIG. 8 is a front view thereof.
As shown in FIGS. 7 and 8, an upper opening hole 73 is provided on the upper surface of the pump 61 and upper opening holes 70, 71, 73 are provided on the upper surface of the water tank region in the upper part of the tank case body 50. Then, at the edge of the upper opening holes 70, 71, 73 on the side opposite to the mounting side surface 50 a, water droplets adhering to the upper surface do not flow down from the upper opening holes 70, 71, 73 into the tank case body 50. As described above, the damming rib 72 is provided so as to protrude over the entire upper surface area where the upper opening holes 70, 71, 73 are formed. A tank case door member 33 is rotatably supported on the rotation axis L of the tank case main body 50.
[0017]
The tank case body 50 is provided with a detection switch 74 for detecting the mounting of the water tank 40 and a tube 10 with a hollow case according to the present invention connected to the water supply port 47 of the water tank 40.
The water in the water tank 40 is sucked into the pump 61 by driving the pump 61 through the water intake tube 45 (FIG. 4), the water supply port 47, the tube 10 with the hollow case, the hollow L rod connection pipe 76, and the water supply pipe 77. A predetermined amount is supplied from 61 to another evaporating dish on the bottom of the heating chamber through a large-diameter water pipe 77A via another water pipe 77.
[0018]
[Problems to be solved by the invention]
The tube which connects between the tubular members (the water supply port 47 and the hollow L-bar connection pipe 76) in the tank case door member 33 of the heating device 20 as described above has not existed conventionally. This is because such a thin water tank was originally not arranged on the side wall of the heating device 20.
Therefore, the present applicant initially considered a connection tube used in other known products as shown in FIG.
[0019]
In FIG. 15, reference numeral 15 denotes a wall portion (FIGS. 7 and 8) on the tube insertion side, and a tube insertion hole 15a (FIGS. 5 and 6) is formed in the upper center. A water supply port 47 of the water tank 40 is provided on the water tank side (right side in the drawing) of the tube insertion hole 15a across the wall 15 and water is supplied to the pump 61 on the pump side (left side in the drawing) of the tube insertion hole 15a. The hollow L rod connecting pipes 76 are positioned, and the funnel-shaped rubber member 11 ″ is connected to both of them.
This funnel-shaped rubber member 11 ″ is made of a hard tube, and is positioned and fixed firmly on the wall portion 15. Thus, the Shore hardness of the tube at that time is preferably 50 to 60 degrees. It was.
[0020]
However, there is no problem if the longitudinal axis of the water supply port 47 and the hollow L-rod connecting pipe 76 coincides with the longitudinal axis of the funnel-shaped rubber member 11 ″. Therefore, if it is going to be mass-produced at a reduced cost, there is a possibility that the axes do not coincide with each other. In this case, the funnel-shaped rubber member 11 ″ is made of a hard rubber. There may be a gap between the rod connection pipe 76 and the water supply port 47, and there is a possibility that air entrainment may occur.
[0021]
The present invention solves the above problem, and even if the hollow L-rod connecting pipe 76 and the water supply port 47 of the water tank 40 are not manufactured to accurate dimensions, the manufacturing error can be absorbed, and the hollow L-rod connecting pipe can be absorbed. An object of the present invention is to provide a tube with a hollow case between tubular members that prevents a gap from being formed between 76 and the water supply port 47.
[0022]
[Means for Solving the Problems]
  In order to solve the above problems, the invention of the tube with a hollow case according to claim 1Used fixed to the mounting surfaceIn a tube with a hollow case composed of a hollow case and a tube accommodated in the hollow case, the tube is formed of a soft material and has a cross section in the longitudinal direction having a wide part, a narrow part, the wide part, Presenting a substantially convex shape composed of a connecting portion connecting the narrow portion, and the wide portion is stored in the hollow case with a predetermined gap,The connecting part is formed obliquely with respect to the axial direction from the narrow part side toward the wide part side, and two parts to be connected to each other are connected to each other at both ends of the soft tube.It is characterized by that.
  According to a second aspect of the present invention, in the tube with a hollow case according to the first aspect, the soft material has a Shore hardness of 30 degrees to 50 degrees.
  With the above configuration, since the tube is a soft material, a manufacturing error in the size of the hollow L rod connecting pipe 76 and the water supply port 47 is absorbed, so that no gap is generated, and therefore air entrainment does not occur. MaFurther, since the connecting portion of the tube is formed obliquely in the axial direction, even if the position of the hollow L rod connecting pipe 76 or the water supply port 47 is slightly shifted from the axis, the tube can follow this, and air entrainment occurs. Disappear.
[0023]
The invention according to claim 3 is the tube with a hollow case according to claim 1 or 2, wherein an end portion of the wide portion protrudes further outward from the wide portion in the radial direction. In addition, the size of the flange is a size in contact with the inside of the hollow case.
According to a fourth aspect of the present invention, in the tube with a hollow case according to any one of the first to third aspects, the hollow case is formed with a protrusion having a tip projecting inwardly, and the protrusion is used to form the tube. The wide part end is locked.
With the above configuration, the hollow case and the wide portion of the tube are in contact with each other at the end, ensuring center alignment, and most other parts are in a non-contact state, so that the hollow L bar connecting pipe 76 and the water supply port 47 Even if the position is slightly deviated from the axis, the tube can follow this, so that air entrainment does not occur.
[0025]
  Claim 5The invention of the tank case door member described isClaims 1-4The tube with the hollow case according to any one of the above is fixed to the wall portion of the tank case door member, and the two tubular members positioned before and after the wall portion are inserted into the tube insertion holes of the wall portion. A tank case door member that is connected to each other through the hollow case, and the hollow case is fixed to the wall portion so that the hollow portion is concentric with the tube insertion hole. The narrow portion has a predetermined gap with the tube insertion hole in a state where the connecting portion is in contact with the wall portion, and protrudes from the tube insertion hole.
  With the above configuration, the tube with the hollow case can be effectively attached to the tank case door member.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 9 is a cross-sectional view of the tube according to the first embodiment of the present invention in use. In the figure, reference numeral 10 denotes a tube with a hollow case according to the present invention, which is composed of a soft tube 11 and a hollow case 12.
Reference numeral 15 denotes a wall portion on the side through which the tube is inserted. A tube insertion hole 15a is formed at the upper center of the wall portion 15 and the hollow case 12 is attached to the wall portion 15 concentrically with the tube insertion hole 15a.
As will be described later, the tube 11 has a substantially convex shape composed of a wide portion, a connecting portion, and a narrow portion in a longitudinal section, and the narrow portion protrudes from the tube insertion hole 15a as shown in the figure. In the hollow case 12.
[0027]
A water supply port 47 (FIG. 8) of the water tank 40 is supplied to the water tank 40 side of the tube insertion hole 15a across the wall 15, and water is supplied to the pump 61 to the pump 61 (FIG. 8) side of the tube insertion hole 15a. The distal ends of the hollow L-rod connecting pipes 76 are respectively positioned, and both of them are connected to the soft tubes 11 in the hollow case 12 according to the present invention at both ends thereof.
According to the present invention, since the connecting portions at both ends can be flexibly followed by the soft tube 11, no gap is generated in the connecting portion with the water supply port 47 and the hollow L rod connecting pipe 76, and therefore air entrainment from here is prevented. No longer occurs.
[0028]
Next, the two members constituting the tube 10 with a hollow case according to the present invention, the soft tube 11 and the hollow case 12, will be described in detail.
10A and 10B are views for explaining the structure of the soft tube 11. FIG. 10A is a cross-sectional view in which the upper half passes through the axis, the lower half is a side view, and FIG. 10B is a front view as viewed from A in FIG. is there.
The soft tube 11 is made of a soft material. The soft material has a Shore hardness of about 30 to 50 degrees, and is soft enough to hold the shape of the soft tube 11 by the hollow case 12.
As the soft material, for example, fluorine rubber, silicon rubber, or synthetic rubber is used.
[0029]
The soft tube 11 has a substantially convex shape in which the cross section in the longitudinal direction is composed of a wide portion 11a, a narrow portion 11b, and a connecting portion 11f that connects both, and the inside is hollow and penetrates both ends. It has become.
The wide portion 11a forms a flange portion 11c whose end portion extends slightly outward in the radial direction, and a convex portion that makes one round in the circumferential direction on the outer side and the inner side of the wide portion 11a with a predetermined interval in the length direction. 11d and 11e are formed so that they do not hang down inward in the radial direction even when an external force in the radial direction is applied.
[0030]
When the wide portion 11 is housed in the hollow case 12, the outer portion except for the flange portion 11c has an outer shape that is housed with a predetermined gap (Y in FIG. 13) from the inner wall of the fixed case 12.
[0031]
On the other hand, the narrow portion 11b is formed to have substantially the same thickness as the wide portion 11a, and has a taper that slightly narrows the opening radius toward the opening end.
The length of the narrow portion 11b is such that when the connecting portion 11f is in contact with the wall portion 15, the hollow L rod connecting pipe 76 is easily connected to the portion protruding from the tube insertion hole 15a (FIG. 9) of the wall portion 15. As a length.
[0032]
The connecting portion 11f is a portion that connects the wide portion 11a and the narrow portion 11b, and in the first embodiment, the connecting portion 11f is formed by a right-angle wall with respect to the axial direction.
[0033]
11A and 11B are views for explaining the structure of the hollow case 12, wherein FIG. 11A is a front view, and FIG. 11B is a cross-sectional view taken along line AA in FIG.
In the figure, the hollow case 12 is plastic-molded, and a projection 12a protruding radially inward is formed at the tip of the cylindrical portion 12b (opposite the wall surface mounting portion). The wide portion 11a of the soft tube 11 is formed on the projection 12a. The hook 11c at the tip of the tube is locked so that the soft tube 11 does not fall off the hollow case 12.
On the other hand, the opposite end (wall surface side) of the cylindrical portion 12b is formed with a convex portion 12c on the upper side in FIG. 11 (a), and the convex portion 12c tip is flat so that it can abut against the wall ceiling (described later). It has become. Further, a screw mounting portion 12d is formed on the lower side in FIG. 11 (a) of the distal end portion (wall surface side) opposite to the cylindrical portion 12b, and a screw hole 12e is formed there, and a screw 14 (FIG. 13). The screw is fixed to the wall portion 15 by referring to FIG.
The axial length (inner side) of the cylindrical portion 12b substantially coincides with the axial length of the wide portion 11a of the soft tube 11 (FIG. 10).
[0034]
12A and 12B are perspective views showing a state in which the hollow case 12 is attached to the wall portion 15, in which FIG. 12A is a perspective view of the wall portion 15 viewed from the pump 61 (FIG. 8) side, and FIG. It is the perspective view seen from 40 (FIG. 8) side.
The wall portion 15 has a tube insertion hole 15a and a screw locking hole 15b.
Accordingly, the tip of the convex portion 12c of the hollow case 12 is brought into contact with the ceiling of the wall portion, and in this state, the screw 14 is screwed into the screw hole 12e of the screw mounting portion 12d via the washer 13, so that the hollow case 12 has the wall portion 15. Since the flat portion at the tip of the convex portion 12c is in contact with the wall ceiling, the hollow case 12 does not rotate around the screw 14. In this state, the central axis of the tube insertion hole 15a of the wall 15 coincides with the central axis of the cylindrical portion 12b of the hollow case 12.
[0035]
With the hollow case 12 fixed to the wall portion 15, the soft tube 11 is flexible and deformed by being inserted into the hollow case 12 from the opening of the hollow case 12 with the narrow portion 11 b of the soft tube 11 as a tip. And can be easily stored inside. Of course, the hollow case 12 may be fixed to the wall portion 15 after the soft tube 11 is first accommodated in the hollow case 12.
[0036]
FIG. 13 is a cross-sectional view of the state housed in the hollow case 12 cut perpendicularly by a plane passing through the axis.
As can be seen, the wide portion 11a of the soft tube 11 is housed in the hollow case 12, and the narrow portion 11b of the soft tube 11 protrudes from the tube insertion hole 15a. The flange portion 11c at the tip of the wide portion 11a of the soft tube 11 is locked to the protrusion 12a of the hollow case 12 to prevent dropping.
[0037]
As described above, since the soft tube 11 according to the present invention is formed of a soft material having a Shore hardness of about 30 to 50 degrees, the tip of the soft tube 11 hangs down by its own weight even if it is attached to the wall alone. However, the hollow case 12 which is another component of the present invention is used, and the soft tube 11 is accommodated in the hollow case 12, and at this time, the flange portion 11 a at the tip of the soft tube 11 is accommodated in the hollow case 12. By making contact, the inlet side opening of the hollow case 12 and the inlet side opening of the wide portion 11a of the soft tube 11 can be on the same axis, and the tip water supply port 47 of the water tank 40 is smoothly connected. .
[0038]
Further, in FIG. 13, there is a gap (clearance) between them except that the flange 11 a at the tip of the soft tube 11 is inscribed in the hollow case 12 in the inner space of the hollow case 12. Since there is also a gap (clearance) between the tube 15 and the tube insertion hole 15a of the wall portion 15, the structure is such that it can cope with the movement and pitch deviation between the tip of the hollow L rod connecting pipe and the nozzle side.
As a result of various tests, the relationship between the gap X between the soft tube 11 and the tube insertion hole 15a and the gap Y between the inside of the hollow case 12 and the outside of the soft tube 11 is
By making X <Y, the followability of the soft tube 11 was improved. The gap X is ideally set to 0.6 mm or more.
[0039]
14A and 14B show a second embodiment of the present invention, in which FIG. 14A is a cross-sectional view of the state housed in the hollow case 12 cut perpendicularly by a plane passing through the axis, and FIG. 14B shows the second embodiment of the present invention. It is sectional drawing cut | disconnected perpendicularly in the surface which passes along the axis line of the tube which concerns on embodiment.
In the figure, 11 ′ is a tube according to the second embodiment of the present invention, and the so-called shoulder (seat) of the connecting portion 11f, which is a connecting portion between the wide portion 11a and the narrow portion 11b, is scraped off. The feature is the “shoulder shoulder”. Since other members are the same as those in the first embodiment, description thereof is omitted.
By forming in this way, there is a gap (clearance) between the two except that the flange portion 11a of the tube 11 ′ is inscribed in the hollow case 12, and in this state, the head swings in the hollow case 12. In this case, the air trapping at the time of water supply can be eliminated without reducing the hardness of the tube 11 ′.
Of course, also in this case, if the hardness of the tube 11 ′ is lowered as in the first embodiment, the range in which the pitch can be absorbed becomes wider and more advantageous.
[0040]
As described above, it has been clarified that the tube packing seat may not be able to follow the tube due to the deformation of the tube packing, and this may cause air trapping during water supply.
Therefore, as means for solving this problem, (1) the hardness is lowered to 40 degrees in order to reduce the occurrence of squeezing deformation, and it is easier to follow, and (2) the cause of deformation without lowering the hardness. Eliminating the slippery seat that made it easier to swing in the hollow case. As a result, air entrainment during water supply was eliminated.
[0041]
【The invention's effect】
As described above, according to the present invention, in a tube with a hollow case composed of a hollow case and a tube accommodated in the hollow case, the tube is formed of a soft material and has a wide section and a narrow section in the longitudinal direction. , The wide portion and a connecting portion that connects the narrow portion, and the wide portion is stored in the hollow case with a predetermined gap, and the shore hardness of the soft material Since the tube is a soft material by setting the angle to 30 degrees to 50 degrees, the manufacturing error of the connection portion between the hollow L rod connecting pipe 76 and the water supply port 47 is absorbed, so that no gap is generated, and therefore air entrainment No longer occurs.
[0042]
In addition, a flange portion that protrudes further outward from the wide portion is formed at the end portion of the wide portion, and the size of the hollow portion is in contact with the inside of the hollow case. By forming the inner protruding protrusion on the center, the center alignment between the hollow case and the wide portion of the tube is ensured and the drop-out is prevented.
[0043]
Furthermore, the connecting portion is formed obliquely with respect to the axial direction from the narrow portion side toward the wide portion side, thereby following the manufacturing error of the connecting portion between the hollow L rod connecting pipe 76 and the water supply port 47. Therefore, there is no gap, so air entrainment does not occur.
[0044]
And when using this tube with a hollow case for a tank case door member, it fixes to the wall part of a tank case door member, and the two tubular members located before and behind the said wall part are penetrated by the tube penetration hole of this wall part. In the tank case door member that is connected via the tube and is held by the hollow case, the hollow case is fixed to the wall portion so that the hollow portion is concentric with the tube insertion hole. The narrow portion of the tube has a predetermined gap with the tube insertion hole in a state where the connecting portion is in contact with the wall portion, and protrudes from the tube insertion hole. It can be effectively attached to the tank case door member.
[Brief description of the drawings]
FIG. 1 is an external perspective view of a high-frequency heating device according to the present invention.
FIG. 2 is an exploded perspective view of a configuration in which a water tank is provided on a side surface of the high-frequency heating device.
FIG. 3 is an explanatory diagram showing a procedure for taking out a water tank from the high-frequency heating device.
FIG. 4 is an enlarged perspective view of a water tank.
FIG. 5 is an enlarged perspective view of a tank case door member.
6 is an explanatory view showing a state in which a water tank is inserted into the tank case door member shown in FIG. 5. FIG.
FIG. 7 is a perspective view showing a configuration in which a tank case door member is pivotally supported on a rotation shaft of a tank case body and a water tank is accommodated between the two.
8 is a side view showing a state in which the assembly shown in FIG. 7 is attached to a side heat insulating plate of a high-frequency heating device.
FIG. 9 is a sectional view of the tube with a hollow case according to the first embodiment of the present invention in use.
10A and 10B are diagrams illustrating the structure of a soft tube, where FIG. 10A is a cross-sectional view in which the upper half passes through the axis, the lower half is a side view, and FIG. 10B is a front view as viewed from A in FIG. is there.
11A and 11B are views for explaining the structure of the hollow case, in which FIG. 11A is a front view, and FIG. 11B is a cross-sectional view taken along line AA in FIG.
12A and 12B are perspective views showing a state where the hollow case is attached to the wall portion, where FIG. 12A is a perspective view of the wall portion viewed from the pump (FIG. 7) side, and FIG. 7) It is the perspective view seen from the side.
FIG. 13 is a cross-sectional view of the state of being housed in a hollow case cut vertically by a plane passing through an axis.
14A is a cross-sectional view of a tube with a hollow case according to a second embodiment of the present invention, wherein FIG. 14A is a cross-sectional view of the state accommodated in the hollow case 12 cut vertically along a plane passing through the axis; These are sectional drawings cut | disconnected perpendicularly in the surface which passes along the axis line of the tube which concerns on the 2nd Embodiment of this invention.
FIG. 15 is a cross-sectional view of a tube first manufactured by the applicant of the present invention, cut perpendicularly by a plane passing through its axis.
[Explanation of symbols]
10 Tube with hollow case
11 Soft tube
11a Wide part
11b Narrow part
11c buttock
11d, 11e Convex part
11f connecting part
12 Hollow case
12a Tip
12b Cylindrical part
12c Convex part
12d Screw mounting part
12e Screw hole
13 Washer
14 screws
15 Wall
15a Tube insertion hole
15b Screw locking hole
20 High-frequency heating device
31 Open / close button (door locking means)
32 Door frame
33 Tank case door member
33a Bottom
33b Upper guide
33c Lower guide
37d rib (side guide)
33 Tank case door member
35 Side insulation plate
40 water tank
41 Tank lid
41a Drawer knob
42 Regulatory Guide
43 Tank body
43a Anti-slip protrusion
45 Intake tube
47 Water inlet
50 Tank case body
50a Upper opening hole mounting side
61 Water supply pump
70, 71, 73 Upper opening hole
72 Ribbing rib
74 Detection switch
76 Hollow L Bar Connection Pipe
77 Water pipe
77A large-diameter water pipe
X Clearance between soft tube and tube insertion hole
Y Clearance between the inside of the hollow case and the outside of the soft tube

Claims (5)

In a tube with a hollow case composed of a hollow case fixed to the mounting surface and a tube accommodated in the hollow case,
The tube is formed of a soft material and has a substantially convex shape with a cross section in the length direction including a wide portion, a narrow portion, a connecting portion that connects the wide portion and the narrow portion, and the wide portion is The hollow case is housed with a predetermined gap, and the connecting part is formed obliquely with respect to the axial direction from the narrow part side toward the wide part side, and is to be connected to each other Are connected at both ends of the soft tube, respectively, and a tube with a hollow case. The tube with a hollow case according to claim 1, wherein the soft material has a Shore hardness of 30 to 50 degrees. The end of the wide portion is formed with a flange that protrudes further outward in the radial direction from the wide portion, and the size of the flange is a size that contacts the inside of the hollow case. The tube with a hollow case according to claim 1 or 2, wherein the tube has a hollow case. The hollow case is formed with a protrusion whose front end portion protrudes inward, and the wide portion end portion of the tube is locked by the protrusion. Tube with hollow case. A tube with a hollow case according to any one of claims 1 to 4 is fixed to a wall portion of a tank case door member, and two tubular members positioned before and after the wall portion are inserted into tube insertion holes in the wall portion. In the tank case door member that is connected via the tube and is held by the hollow case,
The hollow case is fixed to the wall portion so that the hollow portion is concentric with the tube insertion hole,
  The tank case door member, wherein the narrow portion of the tube has a predetermined gap with the tube insertion hole in a state where the connecting portion is in contact with the wall portion, and protrudes from the tube insertion hole.

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