JP6005097B2 - Grill door - Google Patents

Description

  The present invention relates to a grill door that opens and closes a front opening of a grill cabinet provided on a stove with a grill.

  2. Description of the Related Art Conventionally, as this type of grill door, as seen in Japanese Patent Application Laid-Open No. H10-228707, a type in which a heat insulating member made of a synthetic resin is provided along the upper edge of the door body is known.

  The door body consists of a metal door frame that closes the grill cabinet, a window part fitted with a glass plate so that the inside of the grill cabinet can be seen, and a gripping section for the user to grip when opening and closing the grill cabinet. And.

  The heat insulating member is provided in order to reduce discomfort due to heat when the user accidentally touches the upper edge of the grill door that has become hot. Furthermore, in the following Patent Document 1, a ventilation path for circulating cooling air is formed inside the door body, and a cooling air discharge hole communicating with the ventilation path inside the door body is provided in the heat insulating member. . Thereby, cooling of the heat insulation member by the air which passed the ventilation path inside a door main body is aimed at.

JP 2012-42106 A

  However, the cooling air passing through the ventilation path inside the door body cools the door body prior to cooling the heat insulating member. For this reason, the temperature of the cooling air passing through the discharge hole of the heat insulating member is already high, and the temperature of the heat insulating member cannot be sufficiently reduced.

  In view of the above, it is an object of the present invention to provide a grill door that can suppress an increase in the temperature of a heat insulating member and reduce discomfort due to heat when a user touches it.

The present invention is a grill door that opens and closes a front opening of a grill cabinet provided on a stove with a grill, and a door body that abuts against an edge of the grill cabinet and closes the grill cabinet, and the door body A heat insulating member made of a synthetic resin provided along an upper edge of the door body, wherein the heat insulating member projects to the front of the door body and faces the outside of the front surface of the door body, and the door body. A cooling air guide path that takes outside air outside the front surface of the front side as cooling air for the heat insulating member and guides the cooling air from below the overhanging portion toward the upper surface side of the heat insulating member, and the overhanging portion Standing wall along the front end edge, and the standing wall is formed such that its upper edge is located above the upper end of the cooling air guide path .

The said heat insulation member is preventing that a user touches the upper edge of a door main body directly. In the present invention, by the Izuru Cho section of the insulating member providing said cooling air guiding passage, so that cooling of the heat insulating member is carried out.

That is, Izuru Cho portion of the heat insulating member, protrudes in front of the door body so as to face the front outside of the door body. The cooling air guide passage, by provided Izuru Cho portion projecting forwardly of the door body, and can incorporate ambient air of the front outer door body from below. The outside air outside the front surface of the door body is lower in temperature than the air inside the door body as in the past. And a heat insulation member is cooled when comparatively low temperature external air passes along a cooling air guide path. Thereby, the temperature rise of a heat insulation member can be suppressed and the discomfort by the heat | fever when a user touches the heat insulation member can be reduced.

Here, the flow of outside air on the front outside of the door body will be described. The grill door that closes the front opening of the grill cabinet is heated by the radiant heat from the heat source in the grill cabinet. As the temperature of the grill door rises, outside air near the front surface of the door body rises along the front surface of the door body. On stream generated at this time, the outside air of the front face near the door body toward the Izuru Cho portion of the heat insulating member, passes through the cooling air guide passage. Since the air passing through the cooling air guide path is outside air outside the front surface of the door body, it does not reach a high temperature even if it is affected by the temperature rise of the grill door. Therefore, the heat insulating member is sufficiently cooled by the outside air outside the front surface of the door body passing through the cooling air guide path.

  In addition, when the grill door is not completely closed by the grill door (so-called half-open state), relatively high-temperature hot air from the inside of the grill chamber passes forward through the grill door. At this time, since the cooling air guide path is opened on the upper surface side of the heat insulating member, the outside air outside the front surface of the door body is drawn into the hot air on the upper surface side of the heat insulating member. Accordingly, the heat insulating member is cooled by the outside air passing through the cooling air guide path, and the hot air on the upper surface side of the heat insulating member is diluted by the outside air passing through the cooling air guide path, thereby suppressing the temperature rise of the heat insulating member. By suppressing the temperature rise of the heat insulating member in this way, it is possible to reduce discomfort due to heat when the user touches the heat insulating member. Moreover, by suppressing the temperature rise of the heat insulating member, it is possible to prevent deformation and deterioration of the heat insulating member due to heat.

  In addition, the hot air leaking from between the grill door and the front opening of the grill cabinet may heat the leading edge of the top plate of the stove, but the hot air is diluted by the outside air that has passed through the cooling air guide passage, so Temperature rise at the leading edge of the top plate can also be suppressed.

By the way, when a door main body receives the radiant heat of the heat source in a grill warehouse, the temperature of a heat insulation member also rises by the influence of the heat of a door main body. At this time, the heat insulating member is easily affected by the heat of the door body at the portion located immediately above the upper edge of the door body, and the temperature becomes relatively high. Since it is not easily affected, the temperature is lower than the position directly above the upper edge of the door body. Therefore, by providing the standing wall, it is possible to make it difficult for the user to touch the position directly above the upper edge of the door body having a relatively high temperature of the heat insulating member.

In the insulating member of the present invention, the pre-Symbol cooling air guide passage, it is preferable to provide between the upper edge of the door body and the upright wall.

Causing vertical wall is not only provided along the front edge of the overhang portion, by which is provided in the front position than the cooling air guide passage, it is suppressed heat transfer from the door body, the user Even when the upper edge of the standing wall is touched, discomfort due to heat can be further reduced.

  Moreover, when providing the said standing wall in this invention, it is preferable that the said door main body is equipped with the metal heat shield which covers the back surface of the said standing wall.

  By covering the rear surface of the standing wall with a metal heat shield, it is possible to prevent the hot air from directly hitting the standing wall even if relatively hot air leaks from the inside of the grill cabinet. Thereby, not only can the temperature rise of the standing wall be reliably suppressed, but also the deformation and deterioration of the standing wall due to heat can be reliably suppressed.

The front view of a stove with a grill provided with the grill door of an embodiment of the present invention. The perspective view which shows the rear surface side of the grill door of this embodiment. Sectional drawing of the grill door of this embodiment. The top view of the heat insulation member provided in the grille door of this embodiment. Explanatory sectional drawing which shows the effect | action of a heat insulation member.

  An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the grill door 1 of this embodiment is provided in the center part of the front side of the stove 2 with a grill, and the grill store | warehouse | chamber 3 (in FIG.3 and FIG.5) provided in the inside of the stove 2 with a grill. Open and close the front of (showing part).

  In the stove 2 with grill, a stove top plate 5 is provided on the top of the stove body 4, and the stove top plate 5 is provided with stove burners 6 and 7 exposed above. On both sides of the grill door 1 on the front side of the stove 2 with grill, there are operation switches 8 and 9 for igniting the stove burners 6 and 7, respectively, an operation switch 10 for igniting an unillustrated grill burner in the grill cabinet 3, etc. Is provided.

  As shown in FIGS. 2 and 3, the grill door 1 includes a door main body 11 and a heat insulating member 12. The door body 11 includes a door frame 13 made of a metal such as iron or stainless steel, a front panel 14 made of heat-resistant synthetic resin, and a rectangular glass plate 15.

  The door frame 13 is formed with a window portion 16 that allows the inside of the grill cabinet 3 to be visually recognized. A glass plate 15 is fitted and supported on the front surface of the door frame 13. The glass plate 15 covers the front surface of the window portion 16 in a state where the inside of the grill cabinet 3 is visible.

  An inner surface plate 17 is integrally provided below the window portion 16 of the door frame 13. The front panel 14 is positioned below the glass plate 15 and connected to the inner surface plate 17 of the door frame 13 by a plurality of screw members 18.

  As shown in FIGS. 1 and 3, a grip portion 19 is provided on the front side of the front panel 14, and the grill door 1 can be opened and closed by gripping the grip portion 19. Although not shown, the grill door 1 is connected to the front end of a support frame that supports the grill and the soup pan received in the grill cabinet 3. By opening and closing the grill door 1, the grill net and the juice tray are put in and out, and a cooked item such as fish is placed on the grill net.

  When pulling out the grill door 1 to take out grilled fish or the like from the grill cabinet 3, the user's hand or the like may accidentally touch the upper edge of the grill door 1. Therefore, in order to reduce discomfort due to heat when the user touches the upper edge of the grill door 1, a heat insulating member 12 is provided over the entire upper edge of the door body 11.

  The heat insulating member 12 is made of a hard synthetic resin such as polyphenylene sulfide resin (PPS). As shown in FIGS. 2 and 4, the heat insulating member 12 includes fixed bases 20 at both ends in the longitudinal direction, and is connected and fixed to both ends of the upper edge of the door frame 13 by screw members 21.

  A protruding portion 22 is formed between the two fixed base portions 20 of the heat insulating member 12, and an upright wall 23 is formed at the front end edge of the protruding portion 22. As illustrated in FIG. 3, the overhang portion 22 projects forward from the glass plate 15 that is the front surface of the door body 11.

  Further, as shown in FIGS. 3 and 4, a plurality of notches 24 are formed at the rear end portion of the projecting portion 22 located on the glass plate 15 side. The notch 24 forms a gap with the glass plate 15, and the gap is cooled between the front surface of the glass plate 15 and the standing wall 23 so that the heat insulating member 12 can be vented in the vertical direction. An air guide path 25 is configured.

  As shown in FIGS. 2 and 3, an extension portion 26 extending toward the front of the glass plate 15 is formed at the upper end portion of the door frame 13 to which the heat insulating member 12 is attached, and the front end of the extension portion 26 is formed. A tongue-like piece 27 is formed at the edge. The extending portion 26 and the tongue-like piece 27 are formed by bending a portion integrally connected to the upper end of the door frame 13.

  The extension part 26 of the door frame 13 covers the upper surface of the overhanging part 22 of the heat insulating member 12, and the tongue-like piece 27 of the door frame 13 covers the rear surface of the standing wall 23 of the heat insulating member 12. A plurality of through holes 28 are formed in the extending portion 26 so as not to disturb the airflow passing through the cooling air guide path 25. The tongue-like piece 27 functions as a heat shield of the present invention by covering the rear surface of the upright wall 23.

  Next, the operation of each part in the heat insulating member 12 will be described. When cooking by combustion of the grill burner in the grill cabinet 3 is performed, the temperature of the metal door frame 13 facing the inside of the grill door 1 becomes relatively high. Since the heat insulating member 12 is made of synthetic resin, an increase in temperature due to heat transfer from the door frame 13 is suppressed. Further, the temperature of the front end side of the overhanging portion 22 of the heat insulating member 12 is lower than the position directly above the door frame 13. By providing the standing wall 23 at the front edge of the overhanging portion 22 that is maintained at a relatively low temperature, discomfort due to heat when the user touches the standing wall 23 is reduced. Moreover, even if the user contacts the standing wall 23, the portion directly above the door body 11 having a relatively high temperature of the heat insulating member 12 is difficult to touch because the standing wall 23 is in the way, and this also causes the heat of the user. Discomfort can be reduced.

  As shown in FIG. 3, the grill door 1 closes the grill cabinet 3 by abutting against the opening peripheral wall 29 of the grill cabinet 3. When cooking by combustion of the grill burner in the grill cabinet 3 is performed, not only the temperature of the grill door 1 rises but also the heat from the grill cabinet 3 is transmitted to the opening peripheral wall 29 of the grill cabinet 3. Then, heat is generated in the space below the front end of the stove top 5 located above the heat insulating member 12 due to heat from the opening peripheral wall 29 of the grill 3.

  On the other hand, as the temperature of the grill door 1 rises, as shown in FIG. 5A, an upward air flow due to heat is generated along the front surface of the grill door 1 (the front surface of the glass plate 15). This airflow is directed to the lower surface of the overhanging portion 22 as cooling air while drawing outside air having a relatively low temperature outside the front surface of the grill door 1, and enters the cooling air guide path 25 from the cutout portion 24 of the overhanging portion 22. . At this time, the overhanging portion 22 of the heat insulating member 12 and the extending portion 26 of the door frame 13 are cooled by outside air (cooling air) passing through the cooling air guide path 25.

  Furthermore, the outside air (cooling air) that passes upward through the cooling air guide path 25 flows forward through the lower space at the front end of the stove top plate 5. Thereby, an air current is generated in the space below the front end portion of the stovetop 5, and the heat accumulation in the space is eliminated.

  Moreover, the action as a heat shield by the tongue-shaped piece 27 of the door frame 13 prevents the standing wall 23 from being heated by heat from the opening peripheral wall 29 of the grill 3. Moreover, the outside air (cooling air) that has passed through the cooling air guide path 25 contacts the tongue-like piece 27 and the standing wall 23 of the door frame 13, whereby the tongue-like piece 27 and the standing wall 23 are cooled and the temperature rises. It can be suppressed.

  Further, as shown in FIG. 5B, the grill door 3 is not completely closed by the grill door 1 (so-called half-open state), and a gap is generated between the grill door 1 and the peripheral wall 29 of the opening of the grill cabinet 3. If so, a relatively large amount of hot air from the inside of the grill 3 flows out above the grill door 1. And this thermal airflow may contact the heat insulation member 12 and the front end part lower surface of the stove top plate 5, and may raise temperature.

  At this time, the action of the tongue 27 of the door frame 13 as a heat shield plate blocks the heat of the hot air flow from the grill 3 and suppresses the rise in the temperature of the standing wall 23. Furthermore, as described above, outside air (cooling air) outside the front surface of the grill door 1 (the front surface of the glass plate 15) passes through the cooling air guide path 25 of the heat insulating member 12 and moves upward. For this reason, the hot airflow from the inside of the grill cabinet 3 is diluted by the outside air (cooling air) passing through the cooling air guide path 25. Thereby, the temperature of the hot airflow from the inside of the grill warehouse 3 also falls, and the temperature rise of the front end part lower surface of the heat insulation member 12 and the stove top plate 5 is suppressed.

  As described above, according to the heat insulating member 12 of this embodiment, the temperature rise of the heat insulating member 12 can be reliably suppressed, and the discomfort due to the heat when the user touches the heat insulating member 12 can be reduced. it can.

  In the present embodiment, an example in which the cooling air guide path 25 is configured by the notch portion 24 formed in the overhanging portion 22 of the heat insulating member 12 is shown, but a hole penetrating vertically instead of the notch portion 24 is shown. The cooling air guide path 25 may be configured as described above.

  Moreover, in this embodiment, although the standing wall 23 was provided in the overhang | projection part 22 and the tongue-like piece 27 (heat-shielding board) which covers the back surface of the standing wall 23 was shown, the said cooling air guide path was shown. When the action of the cooling air passing through 25 is sufficiently obtained, the upper surface of the heat insulating member 12 may be formed flat without providing the standing wall 23 and the tongue-like piece 27 (heat shield plate).

  Furthermore, in the present embodiment, the overhanging portion 22 of the heat insulating member 12 overhangs relatively large in front of the door body 11, but the overhanging amount of the overhanging portion 22 ensures a region where the cooling air guide path 25 can be formed. If possible, it may be smaller.

  DESCRIPTION OF SYMBOLS 1 ... Grill door, 2 ... Stove with grill, 3 ... Grill storage, 11 ... Door main body, 12 ... Heat insulation member, 22 ... Overhang part, 23 ... Standing wall, 25 ... Cooling air guideway, 27 ... Tongue piece ( (Heat shield plate), 29 ... opening peripheral wall (opening edge).

Claims (3)

A grill door that opens and closes a front opening of a grill cabinet provided on a stove with a grill, and a door body that contacts the opening edge of the grill cabinet to close the grill cabinet, and an upper edge of the door body In what comprises a synthetic resin heat insulating member provided along,
The heat insulating member extends to the front of the door body and faces the front outer side of the door main body, and outside air on the front outer side of the door main body is used as cooling air for the heat insulating member, and the cooling air is used as the cooling air. A cooling air guide path that takes in from below the overhanging portion and guides it toward the upper surface side of the heat insulating member, and a standing wall that rises along the front edge of the overhanging portion,
The grill door according to claim 1, wherein the upright wall is formed such that an upper edge thereof is positioned above an upper end of the cooling air guide path . Before SL cooling air guide passage, the grill door according to claim 1, characterized in that disposed between the upper edge of the door body and the upright wall.   The grill door according to claim 2, wherein the door body includes a metal heat shield that covers a rear surface of the upright wall.