JP2011244942A - Pressure fryer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pressure fryer in which a pressure leak is unlikely to occur, which results in improved user-friendliness.SOLUTION: A flat packing seal 41 is attached in a position opposing an edge of an opening 3a of an oil tank 3 when a bar member 34 is in an inclined position, near a peripheral edge of a back face of the lid body 32 having a cover 32a provided on the peripheral edge, and an O-ring 43 is attached near the opening 3a of a peripheral face of the oil tank 3, allowing the oil tank 3 and lid body 32 to be sealed in two places, the flat packing seal 41 and the O-ring 43.

Description

  The present invention relates to a pressure fryer for cooking cooking ingredients by heating cooking oil stored in an oil tank.

  2. Description of the Related Art Conventionally, a pressure fryer is provided with an oil tank that is open on the upper surface and can contain cooking oil, and heating means such as a pulse combustor that heats the oil tank, and for sealing the opening of the oil tank. A lid is provided (for example, Patent Document 1). And while sealing the opening of the oil tank in which the cooking oil and the foodstuff were accommodated by the said lid | cover, the cooking oil in an oil tank can be heated and pressurized cooking can be carried out by heating the cooking oil in an oil tank with a heating means. .

  In such a pressure fryer, the lid is provided with a seal structure for sealing the opening of the oil tank. As a sealing structure, a flat packing seal is used, and the flat packing seal is attached to the inner surface of the lid, and when the opening is sealed, the opening is sealed against the opening edge of the oil tank so that the opening can be sealed. It has become.

JP 2004-254854 A

  However, according to the above prior art, since the sealing structure of the lid is only one of the flat packing seal, pressure leakage or the like is likely to occur during cooking due to a crack or the like generated in the flat packing seal. There is a problem that the durability of the performance is poor. In order to prevent this situation, the flat packing seal must be inspected every time it is used, and the flat packing seal must be replaced every time a crack is found. It was a problem.

  Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a pressure fryer that is unlikely to cause pressure leakage and can be improved in usability.

In order to achieve the above object, the invention according to claim 1 of the present invention is a pressure fryer in which a housing is provided with an oil tank that opens on an upper surface and a lid that seals the opening of the oil tank. The lid includes a lid main body that opens and closes the opening; a frame member that supports the lid main body; and a slide mechanism that slides the lid main body in a predetermined direction with respect to the frame member. It is attached to the housing so as to be rotatable between a standing posture not located above the opening and a tilting posture where the lid body is located above the opening, and after rotating the frame member from the standing posture to the tilting posture, While the lid body is slid to the oil tank side to seal the opening, when the opening is sealed by the lid body, the first sealing means for sealing between the back surface of the lid body and the end face of the opening, and the first sealing means Wherein the second sealing means is provided for sealing between the lid body and the oil tank outside than the position to be Lumpur.
According to a second aspect of the present invention, in the first aspect of the present invention, a cover portion that covers the outer peripheral surface of the oil tank when the opening is sealed is provided at the peripheral portion of the lid body, while the first sealing means is a lid. On the back surface of the main body, the first seal member is provided at a position facing the end face when the frame member is tilted, and the second seal means is located near the opening on the outer peripheral surface of the oil tank. When the opening is sealed by the lid body, the first sealing member seals between the back surface and the end surface of the lid body, and the second sealing member is the inner surface of the covering portion and the outer periphery of the oil tank. It is characterized by sealing between the surfaces.
According to a third aspect of the present invention, in the first aspect of the invention, the flat surface portion and the tapered surface portion are formed on the end face of the opening, while the first sealing means tilts the frame member on the back surface of the lid body. It is a flat first seal portion provided at a position facing the flat portion when the posture is set, and the second seal means is formed integrally with the first seal portion, and the frame member is tilted. Is a convex second seal portion provided at a position facing the tapered surface portion, and when the opening is sealed by the lid body, the first seal portion seals between the back surface and the flat portion of the lid body, The second seal portion seals between the back surface of the lid body and the tapered surface portion.

According to the present invention, the first sealing means and the second sealing means double seal between the oil tank and the lid. Therefore, it is possible to expect higher sealing performance than before, and even if a crack occurs in one of the first sealing means and the second sealing means, the sealing state is maintained by the other sealing means without a crack. Can be maintained. That is, it can be expected to improve the durability of the seal. Further, it is possible to use the seal member without exchanging until both the first seal means and the second seal means are cracked.
Further, the frame member that supports the lid body is attached to the housing so as to be rotatable between a standing posture in which the lid body is not located above the opening and a tilting posture in which the lid body is located above the opening. The upper part of the oil tank can be opened widely by setting the frame member in the standing posture. Therefore, it is easy to put food in and out of the oil tank, clean the oil tank, etc., and further improve usability.
Furthermore, in particular, according to the invention described in claim 3, the first sealing means and the second sealing means can be constituted by one sealing member, the number of parts can be reduced, and only the lid body side It is possible to check the state of both the first seal means and the second seal means simply by checking the above, and the check work can be easily performed.

It is perspective explanatory drawing which showed a part of internal structure of a pressure fryer. It is the schematic explanatory drawing which showed the pressure fryer from the side. It is explanatory drawing which showed a mode that the opening of an oil tank was sealed with a cover in the AA line cross section in FIG. It is explanatory drawing which showed a mode that the opening of an oil tank was sealed with a cover in the AA line cross section in FIG. It is explanatory drawing which showed a mode that the opening of an oil tank was sealed with a cover in the AA line cross section in FIG. It is explanatory drawing which showed a mode that the opening of an oil tank was sealed with a cover in the AA line cross section in FIG. It is explanatory drawing which expanded and showed the principal part of the lid | cover. It is explanatory drawing which showed the 1st modification of this invention. It is explanatory drawing which showed the 2nd modification of this invention.

  Hereinafter, a pressure fryer according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective explanatory view showing a part of the internal structure of the pressure fryer 1, and FIG. 2 is a schematic explanatory view showing the pressure fryer 1 from the side.
The pressure fryer 1 has an oil tank 3 having a rectangular shape in plan view filled with cooking oil in a housing 2, a pulse combustor 4 as a heating means for heating the cooking oil in the oil tank 3, and operations of the pulse combustor 4. A controller 22 to be controlled is installed. Further, a lid 5 capable of opening and closing the opening 3a of the oil tank 3 is provided above the oil tank 3, and the cooking mode, cooking temperature, and the like are instructed to the controller 22 in front of the oil tank 3 (front surface of the housing 2). An operation panel 23 for inputting is provided.

  The pulse combustor 4 is provided on the inner surface on the front side of the oil tank 3 and combusts a mixed gas of fuel gas and combustion air, and a heat exchanging portion from which combustion exhaust from the combustion chamber 6 is discharged. Combustion exhaust in which a pair of left and right tail pipes 7, 7, an exhaust muffler provided on the downstream side of the tail pipes 7, and an exhaust pipe 9 erected around the rear of the housing 2 are connected. Has a system.

  On the other hand, an air chamber 10 is provided outside the front surface of the oil tank 3. This air chamber 10 has a mixing chamber (not shown) communicating with the combustion chamber 6 through a flapper valve, and combustion air is supplied from a fan 11 provided on the bottom surface of the housing 2 through a muffler 12 and an air supply pipe 13. Supply is possible. Further, the gas conduit 14 connected to the mixing chamber in the air chamber 10 is provided with a flasher 15 having an electromagnetic valve and a gas governor for controlling opening and closing of the fuel gas supply path to the pulse combustor 4. . Reference numeral 16 denotes an oil tank connected to the bottom of the oil tank 3. The cooking oil transferred from the oil tank 3 to the oil tank 16 is filtered by a filter provided in the oil tank 16 and returned to the oil tank 3 by a pump 17. Filtering of cooking oil is possible.

  In the pressure fryer 1 as described above, when cooking, the oil tank 3 is first filled with cooking oil, a predetermined cooking mode is selected on the operation panel 23, and the operation switch is turned on. Then, the controller 22 rotates the fan 11 for a predetermined time to supply air, and then intermittently burns the mixed gas in the combustion chamber 6 to operate the pulse combustor 4. In other words, a mixed gas is ignited by an ignition plug (not shown) provided in the combustion chamber 6 to explode and burn in the combustion chamber 6, and the combustion exhaust is sent to the tail pipes 7 and 7 by the pressure increase in the combustion chamber 6 due to the combustion. And an operation (ON / OFF operation) of sucking fuel gas and combustion air into the combustion chamber 6 that becomes negative pressure due to the discharge of the combustion exhaust gas is repeated. Therefore, the cooking oil in the oil tank 3 is heated to the cooking temperature by heat exchange with the tail pipe 7. Therefore, when the food is put into the oil tank 3 through the basket (not shown) and the lid 5 is closed, the food is heated and pressurized in the oil tank 3.

Here, the seal structure of the oil tank 3 which is a main part of the present invention will be described in detail with reference to FIGS. 3-6 is explanatory drawing which showed a mode that the opening 3a of the oil tank 3 was sealed with the lid | cover 5 in the AA line cross section in FIG. FIG. 7 is an explanatory diagram showing an enlarged main part of the lid 5.
The lid 5 includes a frame member 31 that is rotatably supported by the housing 2, a lid body 32 that is supported by the frame member 31, and a slide mechanism 33 that slides the lid body 32 relative to the frame member 31. The frame member 31 is attached to the bar member 34 that can be crossed over the oil tank 3, a support plate 36 having a shaft hole 35 attached to one end of the bar member 34, and the other end of the bar member 34. And a locking member 37. The frame member 31 has a standing posture in which the bar member 34 stands up and a lid main body 32 (described later) attached to the bar member 34 is not positioned above the opening 3a, and the bar member 34 tilts horizontally. 32 is rotatable between a tilting posture positioned above the opening 3 a and can be locked in a tilting posture by a lock member 37.

  Further, the slide mechanism 33 is screwed into the screw hole 38 penetrating the front and back at a substantially center in the longitudinal direction of the bar member 34, and is attached to the bar member 34 so as to be rotatable. The tip of the rotating shaft 39a of the handle 39 is connected to the surface (upper surface) of the lid main body 32 at a point penetrating the bar member 34. Therefore, for example, when the handle 39 is rotated while the bar member 34 is in the tilted posture, the lid body 32 can be moved up and down integrally with the handle 39 independently of the bar member 34. The handle 39 is provided with a fixing mechanism (not shown) that fixes the lid body 32 at a sealing position that seals the opening 3a.

  Furthermore, the lid body 32 is a plate-like body that can completely cover the opening 3a of the oil tank 3, and a cover portion 32a that is bent to the opposite side to the bar member 34 side is provided on the periphery thereof. When the opening 3a is sealed by the lid body 32, the covering portion 32a covers the outer peripheral surface of the oil tank 3 (overlaps from the outside to the front, rear, left and right side surfaces of the oil tank 3, as shown in FIGS. 6 and 7). . Further, in the vicinity of the periphery of the back surface of the lid main body 32 (the surface on the side facing the oil tank 3), the groove 40 is located at the position facing the edge of the opening 3a of the oil tank 3 when the bar member 34 is tilted. The flat packing seal 41 is accommodated in the groove 40. When the opening 3 a is sealed by the lid body 32, the flat packing seal 41 comes into contact with the end surface of the opening 3 a and seals between the lid body 32 and the oil tank 3.

  On the other hand, the oil tank 3 is formed in a square shape in plan view having the opening 3a on the upper surface as described above, and a pair of upper and lower ribs 42 and 42 are all provided in the vicinity of the opening 3a on the outer peripheral surface (front and rear, left and right side surfaces). An O-ring 43 is fitted between the ribs 42 and 42 and provided around the circumference. When the opening 3 a is sealed by the lid main body 32, the O-ring 43 comes into contact with the inner surface of the cover portion 32 a of the lid main body 32 to seal between the lid main body 32 and the oil tank 3.

  When the oil tank 3 is sealed by the lid 5, first, the frame member 31 in the standing posture as shown in FIG. 3 is rotated, and after the posture as shown in FIG. 4, the tilted posture as shown in FIG. And Then, the front end portion 37a of the lock member 37 is engaged with an arrowhead-like engagement claw 30 provided on the outer peripheral surface of the oil tank 3, and the frame member 31 is locked in the tilted posture. Next, the handle 39 is rotated to lower the lid main body 32 to a predetermined sealing position, and the inner surface of the cover portion 32a is brought into close contact with the O-ring 43 as shown in FIG. 6 and FIG. If 41 is crimped | bonded to the end surface of the opening 3a, the opening 3a of the oil tank 3 can be sealed by the lid 5. At this time, the oil tank 3 and the lid 5 are sealed by the double seal structure of the flat packing seal 41 and the O-ring 43. In addition, when opening the oil tank 3, it can carry out in the reverse procedure to the said procedure. That is, the handle 39 is rotated to raise the lid body 32, the release lever 37b of the lock member 37 is pulled forward, the engagement between the distal end portion 37a and the engagement claw 30 is released, and the lock is released. What is necessary is just to rotate until the member 31 becomes a standing posture.

According to the pressure fryer 1 having the above-described configuration, when the bar member 34 is tilted in the vicinity of the periphery of the back surface of the lid main body 32 provided with the covering portion 32a on the periphery, it faces the edge of the opening 3a of the oil tank 3. A flat packing seal 41 is attached to the position where the oil tank 3 is attached, and an O-ring 43 is attached in the vicinity of the opening 3 a on the outer peripheral surface of the oil tank 3. It is designed to seal the gap. Therefore, it is possible to expect a higher sealing performance (sealing performance) than before, and even if any one of the flat packing seal 41 and the O-ring 43 is cracked, the sealing state is maintained by the other without cracking. Can be maintained. That is, it can be expected to improve the durability of the seal. Furthermore, it is possible to use the seal member without exchanging it until both the flat packing seal 41 and the O-ring 43 are cracked, which is convenient.
In addition, the frame member 31 that supports the lid main body 32 is rotatable between a standing posture in which the lid main body 32 is not located above the opening 3a and a tilted posture in which the lid main body 32 is located above the opening 3a. Since the frame member 31 is in the standing posture, the upper part of the oil tank 3 can be widely opened. Accordingly, it is easy to put food in and out of the oil tank 3 and to clean the oil tank 3 and the like, and it is possible to further improve usability.

  In addition, the structure which concerns on the pressure fryer of this invention is not limited to the aspect of the said embodiment at all, The structure which concerns on a seal structure, etc. are suitably changed as needed in the range which does not deviate from the meaning of this invention. be able to.

For example, in the above embodiment, when attaching the O-ring 43 to the outer peripheral surface of the oil tank 3, a pair of ribs 42, 42 are provided on the outer peripheral surface of the oil tank 3, and the O-ring 43 is fitted between the ribs 42, 42. However, it is also possible to employ a configuration as shown in FIG. That is, the groove 45 is provided over the entire circumference in the vicinity of the opening 3 a on the outer peripheral surface of the oil tank 3, and the O-ring 43 is fitted into the groove 45. When the opening 3a of the oil tank 3 is sealed by the lid body 32, the flat packing seal 41 is in contact with the end surface of the opening 3a, and the O-ring 43 is in contact with the inner surface of the covering portion 32a. Therefore, even if this configuration is adopted, the gap between the oil tank 3 and the lid body 32 can be sealed at two locations, that is, the flat packing seal 41 and the O-ring 43, as in the above embodiment. Durability, usability, etc. can be improved.
Further, in the above-described embodiment and modification, the O-ring 43 is provided in the oil tank 3, but the O-ring 43 may be arranged on the inner surface of the cover portion 32 a of the lid body 32. By adopting this configuration, when checking for cracks and breakage of both the flat packing seal 41 and the O-ring 43, it is only necessary to check the lid body 32 side in the standing posture, so that the inspection work is easy. There is an advantage that can be done.

  Furthermore, regarding the seal structure, a configuration as shown in FIG. 9 can be adopted. In the seal structure shown in FIG. 9, on the end surface of the opening 3 a of the oil tank 3, a flat surface portion 3 b that is substantially horizontal and a tapered surface portion 3 c that is inclined downward toward the outside on the outside of the flat surface portion 3 b, The seal member 46 is accommodated in the groove 40 of the lid body 32. When the opening 3a is sealed by the lid member 32, the sealing member 46 has a first convex sealing portion 46a that contacts the flat surface portion 3b of the opening 3a on the inner peripheral side and a convex second surface that contacts the tapered surface portion 3c. Two seal portions 46b are provided on the outer peripheral side. Therefore, when the said seal structure is employ | adopted, between the oil tank 3 and the lid | cover main body 32 will be sealed by two places, the 1st seal part 46a and the 2nd seal part 46b. Therefore, even if the seal structure is employed, the gap between the oil tank 3 and the lid body 32 can be sealed at two places, as in the above embodiment, and the seal performance is improved as well as the first seal portion 46a. Even if a crack or the like occurs in any one of the second seal portions 46b, the seal state is not impaired, so that it is possible to improve the durability and usability of the seal. Further, according to this configuration, since only one seal member is required, there is an effect that the number of parts is reduced, and it is possible to reduce the number of parts by simply inspecting only the lid main body 32 side between the first seal portion 46a and the second seal portion 46b. Both states can be inspected, and there is an advantage that the inspection work can be easily performed.

  Note that when the sealing structure as shown in FIG. 9 is adopted, the cover body 32 does not have to be provided with the cover portion 32a. Further, in the seal structure shown in FIG. 9, the tapered surface portion 3c is formed continuously from the flat portion 3b, but it is not necessarily formed continuously from the flat portion 3b. As a structure that is not formed continuously from the flat surface portion 3b, for example, a step portion whose height in the vertical direction is lower than that of the inner periphery side is formed on the outer peripheral edge of the opening 3a, and the upper surface of the step portion is formed as a tapered surface portion 3c. Such a structure can be considered. Furthermore, in the seal structure shown in FIG. 9, the tapered surface portion 3c is provided outside the flat portion 3b. However, the tapered surface portion 3c may be provided along the inside of the flat portion 3b, that is, along the inner periphery of the opening 3a. As the seal structure, for example, a flat surface portion 3b that is substantially horizontal and a tapered surface portion 3c that is inclined downward toward the inside are provided on the end surface of the opening 3a. A structure in which the seal member 46 provided with the first seal portion 46a on the outer peripheral side and the convex second seal portion 46b on the inner peripheral side is attached to the lid body 32 is conceivable.

  In addition, the shape and size of the oil tank can be changed as appropriate, and the size and shape of the lid body can be changed in accordance with the oil tank as well, and the design can also be changed for configurations not related to the seal structure. In the above embodiment, for example, a pulse combustor is employed as the heating means, but it is also possible to employ a heating means that directly heats the oil tank using a burner or the like.

  1 .... pressure fryer, 2. housing, 3. oil tank, 3a ... opening, 3b ... plane part, 3c ... taper surface part, 5 .... lid, 31 ... frame member, 32 ... lid body, 32a ... Covering part 33 ... Slide mechanism 34 ... Bar member 35 ... Shaft hole 36 ... Support plate 37 ... Lock member 38 ... Screw hole 39 ... Handle 39a ... Rotating shaft, 40 .. groove, 41 .. Flat packing seal (first seal means), 42 .. Rib, 43 .. O-ring (second seal means), 45 .. Groove, 46 .. Seal member, 46a ... first seal part (first seal means), 46b ... second seal part (second seal means).

Claims (3)

A pressure fryer in which an oil tank opened on the upper surface and a lid for sealing the opening of the oil tank are installed in the housing,
The lid includes a lid body that opens and closes the opening; a frame member that supports the lid body; and a slide mechanism that slides the lid body in a predetermined direction with respect to the frame member; However, the lid body is attached to the housing so as to be rotatable between a standing posture where the lid body is not located above the opening and a tilting posture where the lid body is located above the opening,
After rotating the frame member from the standing posture to the tilted posture, the lid body is slid to the oil tank side to seal the opening,
When the opening is sealed by the lid body, a first sealing means for sealing between a back surface of the lid body and an end face of the opening, and the lid body outside the position sealed by the first sealing means And a second sealing means for sealing between the oil tank and the oil tank. While providing a cover part covering the outer peripheral surface of the oil tank when sealing the opening on the peripheral part of the lid body,
The first seal means is a first seal member provided at a position facing the end surface when the frame member is tilted on the back surface of the lid body,
The second seal means is a second seal member provided at a position near the opening on the outer peripheral surface of the oil tank;
When the opening is sealed by the lid body, the first seal member seals between the back surface of the lid body and the end surface, and the second seal member includes an inner surface of the covering portion and an outer peripheral surface of the oil tank. The pressure fryer according to claim 1, wherein the gap is sealed. While forming a flat surface portion and a tapered surface portion on the end surface of the opening,
The first sealing means is a planar first seal portion provided at a position facing the planar portion when the frame member is tilted on the back surface of the lid body,
The second seal means is a convex second seal portion formed integrally with the first seal portion and provided at a position facing the tapered surface portion when the frame member is in an inclined posture;
When the opening is sealed by the lid body, the first seal portion seals between the back surface of the lid body and the flat portion, and the second seal portion is formed between the back surface of the lid body and the tapered surface portion. The pressure fryer according to claim 1, wherein the gap is sealed.

Images