JP2008304105A - Portable gas stove - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable gas stove comprising an attachment auxiliary means of a gas canister for surely and stably holding the attachment of the gas canister and simplifying its attaching operation. <P>SOLUTION: The attachment auxiliary means of the gas canister, having an inclined face on its outer peripheral portion and projecting into a canister receiving portion by closing a cover, is buried in an inner face side of the cover openably and closably covering the canister receiving portion of the portable gas stove, the attachment auxiliary means is brought into contact with a bottom edge of the gas canister in a separated state, at an opened edge of the inclined face of the outer peripheral portion after the start of closing the cover and before its completion, and the attachment auxiliary means is kept into contact with the bottom edge of the gas canister in an attached state, at the outer peripheral portion in completion of closing the cover. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to a cassette cooker, and more particularly, to a cassette cooker configured to supply a fuel gas by attaching a gas cylinder to a governor that is a pressure regulator, and securely and stably holding the gas cylinder attached to the governor. Furthermore, the present invention relates to a cassette cooker equipped with a gas cylinder mounting auxiliary means that makes the gas cylinder mounting operation to the governor simple and easy.

A cassette cooker is a cooking device that uses a small-capacity, detachable gas cylinder as a fuel source, and supplies fuel gas supplied from the gas cylinder to a gas burner that is a combustion section through a governor that is a pressure regulator. Basically, the stove main body is constituted by a burner accommodating portion for accommodating the gas burner and a cylinder accommodating portion that includes the governor and that detachably accommodates the gas cylinder to the governor, and the burner accommodating portion has a juice receiving tray. In general, the cylinder housing part is provided with an openable / closable cover that covers its open surface.

In this kind of cassette stove, the nozzle provided at the tip of the gas cylinder is pushed into the insertion hole of the governor, the nozzle is pushed back from the tip side in the insertion hole, and the valve in the gas cylinder is opened to open the gas cylinder. The fuel gas charged in the gas cylinder is injected and supplied to the governor. This state is referred to as “installation”, and the gas cylinder is moved backward to release the pressure on the nozzle of the gas cylinder pushed into the insertion hole of the governor. The state in which the supply of fuel gas to the governor is stopped by closing the inner valve is called “disengagement”.

In order to use the cassette stove safely, the gas cylinder must be securely and stably attached to and detached from the governor, and the gas cylinder can be stably attached and attached and removed smoothly. Various attachment / detachment devices have been proposed and provided for the purpose of operating them.

Among these types of attachment / detachment devices, the conventional ones that operate the attachment / detachment of the gas cylinder by an external lever using a link mechanism, and the partition housing side of the partition wall that divides the burner housing section and the cylinder housing section of the stove body In addition, a sliding plate provided with means for holding the bottom edge of the gas cylinder is disposed in a state of being urged in the disengagement direction, and the sliding plate is slid in the governor direction by the operation of an external lever and locked. Thus, the gas cylinder nozzle is pushed into the insertion hole of the governor and the fuel gas is injected and supplied, and the slide plate in the mounted state is similarly unlocked by the operation of the external lever and biased. By sliding in the separating direction, the pressure on the nozzle of the gas cylinder is released and the supply of fuel gas is stopped.

On the other hand, it is pointed out that the mechanism of the above attachment / detachment device is complicated, has a large size, has a large number of parts, and has a high cost burden. Also, it is pointed out that the attachment / detachment operation by an external lever is complicated, and attachment / detachment devices with different configurations are provided. It is showing widespread use and penetration.

One of them is disclosed in Japanese Patent Application Laid-Open No. 8-254321, which uses a sliding plate provided with means for holding a ring flange provided near the nozzle at the tip of the gas cylinder and holds it on the sliding plate. Attach the gas cylinder to the governor by pushing it in the direction of the governor, and lock the sliding plate to hold the mounting state, and release the lock and slide the sliding plate in the urged release direction. Since the gas cylinder is removed from the mounted state by attaching the detachable mechanism to the limited range around the governor, the sliding plate held in the mounted state can be locked and released externally. It is configured to be released by turning an operation shaft protruding from a governor supply valve without requiring a lever.

In another example, a magnet is disposed in the vicinity of the insertion hole of the governor, and when the nozzle at the tip of the gas cylinder placed in the cylinder accommodating part is manually pushed into the insertion hole of the governor and attached, the tip of the gas cylinder The magnet that is in contact with the magnet attracts and holds the gas cylinder, and the gas cylinder is detached by manually pulling out the gas cylinder in the mounted state.

JP-A-8-254321

Each of the above-described conventional techniques related to the gas cylinder attaching / detaching device has a configuration in which the gas cylinder is attached to and detached from the governor, and the gas cylinder attached to the governor is maintained in the mounted state. The following problems have been pointed out.

That is, in the above-described prior art, in the example in which the gas cylinder is attached / detached by the external lever using the link mechanism, the accuracy error of the entire attaching / detaching apparatus in which the manufacturing errors of many component parts are accumulated, and the repeated use by the continuous use. It has been pointed out that due to the load of the apparatus, the holding of the gas cylinder attached to the governor is not sufficiently ensured, and a slight return of the nozzle causes an unstable decrease in the amount of supplied gas.

  Also, for the example using a sliding plate provided with a ring flange holding means in the vicinity of the gas cylinder tip, the mounting state of the gas cylinder cannot be completely maintained mainly due to equipment load due to repeated use, and it is supplied in the same manner as the above example. It has been pointed out that the gas amount may be reduced.

Furthermore, even with a detachable device that uses a magnet, it has been reported that the gas cylinder attached to and retained by the governor is detached or dropped due to the impact on the cassette stove or the dirt of the magnet or magnet housing. Yes.

As described above, the gas cylinder attachment / detachment device used in the conventional cassette stove is common in that the mounting state of the gas cylinder mounted by pushing the tip nozzle into the insertion hole of the governor is not sufficiently maintained. Have a problem to do.

In addition, it has been pointed out that these conventional techniques have a problem with the operability of the attaching / detaching operation when using the cassette stove.

Among the above-mentioned prior arts, those that are attached / detached by the external lever have already been pointed out that the operation of the external lever itself is complicated, but other attaching / detaching devices that do not require the attaching / detaching operation by the external lever, In other words, the use of a sliding plate provided with a means for holding the ring flange of the gas cylinder and the use of a magnet are both cumbersome with respect to the mounting of the gas cylinder to the governor, which is required by both users. There are many voices that point out and seek improvement.

The present invention solves the above-mentioned problems of the prior art, can securely and stably hold the gas cylinder attached to the governor, and can easily and easily perform the operation of attaching the gas cylinder to the governor. The objective is to provide a stove.

The invention of claim 1 has a burner accommodating portion for accommodating a gas burner, and a cylinder accommodating portion which is provided with a governor and configured to detachably accommodate a gas cylinder to the governor, and an open surface of the cylinder accommodating portion is provided. A cassette stove provided with an openable / closable cover for covering the cylinder housing portion when the cover is closed and covering the cylinder housing portion, and projecting in the cylinder housing portion facing the inner surface of the cover, and an outer peripheral portion thereof Is a cassette stove characterized in that the gas cylinder mounting auxiliary means is installed on the inner surface side of the cover, which occupies a position in contact with the bottom edge of the gas cylinder mounted on the governor. .

According to a second aspect of the present invention, the gas cylinder mounting auxiliary means has an inclined surface on the outer periphery thereof from the open end to the upper position, and the inclination is between the start of closing the cover and before the closing is completed. The release edge of the surface occupies a position that comes into contact with the bottom edge of the gas cylinder in a state of being detached from the governor, and is attached to the governor at a position above the release edge when the cover is closed. The cassette stove according to claim 1, wherein the cassette stove occupies a position in contact with the bottom edge of the gas cylinder.

According to a third aspect of the present invention, rotation prevention means for the gas cylinder, which is a convex portion formed in the direction of the cylinder accommodating portion, is provided at a partition wall or a partition responsive position that partitions the burner accommodating portion and the cylinder accommodating portion. The cassette stove according to claim 1 or 2, characterized by the above.

According to the present invention, the simple configuration of planting the gas cylinder mounting auxiliary means on the inner surface side of the cover that covers the open surface of the cylinder housing portion in the cassette stove solves the problems of the prior art and It is possible to provide a cassette stove that can securely and stably hold the mounting state of the gas cylinder, and that can easily and easily perform the mounting operation of the gas cylinder to the governor.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

According to the present invention, a gas cylinder mounting auxiliary means that can occupy a position that contacts the bottom edge of the gas cylinder accommodated and placed in the cylinder accommodating portion is installed on the inner surface side of the cover that covers the open surface of the cylinder accommodating portion. The mounting auxiliary means that descends with the closing of the cover maintains the mounting state of the gas cylinder mounted on the governor, and the maximum configuration is that the gas cylinder in the detached state can be mounted on the governor. FIG. 1 is a plan view showing the main part of an example of a stove with a gas cylinder mounting assisting means, and FIG. 2 is a perspective view showing an example of the mounting assisting means.

As shown in FIG. 1, the cassette stove according to the present invention includes a burner housing portion 2 that houses a gas burner that is a combustion portion, and a cylinder housing portion 3 that houses a gas cylinder. The part 3 is provided with a governor 4 having a control shaft provided with a knob at the front side position, and a gas cylinder accommodating space is provided with an appropriate recess for stably mounting the gas cylinder. Furthermore, a cover 5 that can cover a flat surface portion that is an open surface is attached to the cylinder housing portion 3 so as to be openable and closable, and on the inner surface side of the cover 5 that faces the cylinder housing portion 3 when the cover is closed. A gas cylinder mounting assistance means 6 is planted.

The cassette stove of the present embodiment employs a gas cylinder attaching / detaching device according to the prior art described in Patent Document 1, and is attached to a governor mounting portion located below the bottom surface portion of the governor 4 provided in the cylinder housing portion 3. A sliding plate 43 having a ring flange holding means 42 provided at the front end side of the gas cylinder is slidably attached in the longitudinal direction of the cylinder accommodating portion 3 in a state of being biased in the gas cylinder detaching direction. If the gas cylinder holding the ring flange on the holding means 42 is pushed by hand in the governor direction, the nozzle at the tip of the gas cylinder is pushed into the insertion hole 41 of the governor 4 and mounted, and the gas cylinder is placed on the governor. The sliding state of the gas cylinder is maintained by locking the sliding plate 43 that has been slid to the 4 side, and the sliding plate 43 is slid in the biased release direction by releasing this lock. It is configured to disengage the gas cylinder which had been attached to the governor 4.

Further, as the gas cylinder mounting auxiliary means to be planted on the inner surface side of the cover 5, a desired material and shape can be arbitrarily selected. However, as shown in FIG. Is used.

In the present embodiment, when the cover 5 in which the prismatic member 6 is planted is closed and the cylinder accommodating portion 3 is covered with respect to the prismatic member 6 that is a gas cylinder mounting auxiliary means, The length which protrudes in the cylinder accommodating part 3 which opposes is given.

Further, the prismatic member 6 is provided with an inclined surface 61 on one surface of the outer peripheral portion thereof from the open end 61a toward the upper position 61b. When the gas cylinder is placed with the open end 61a of the inclined surface 61 formed on the prism member 6 being detached from the governor 4 when it is lowered into the accommodating portion 3, it occupies a position that contacts the bottom end of the gas cylinder. When the prism 5 is further lowered by further closing the cover 5 and the gas cylinder is mounted on the governor 4 at the upper position 61b passing through the inclined surface 61, the bottom edge of the prism member 6 is contacted. It is planted on the inner surface side of the cover 5 so that it can occupy a contact position.

Since the cylinder accommodating portion 3 according to the present embodiment and the prismatic column member 6 that is a gas cylinder mounting assisting unit are configured as described above, the ring flange of the gas cylinder is attached to the governor 4 by the sliding plate 42. A prismatic member that is held by the holding means 43 and is placed in the cylinder accommodating portion 3 with the gas cylinder detached from the governor 4 and closed when the cover 5 is closed. 6 (FIG. 4 a), first comes into contact with the bottom edge of the gas cylinder 8 placed in a detached state from the governor 4 (FIG. 3 a), and when the prism 5 is lowered by further closing the cover 5, the gas cylinder The inclined surface 61 of the prism member 6 that is in contact with the bottom edge of the cylinder 8 pushes the gas cylinder 8 in the direction of the governor 4 so that the nozzle at the tip of the gas cylinder 8 is inserted into the governor insertion hole 41 (FIGS. 3b and 4b). When the abutting position of the prism member 6 with respect to the bottom edge of the gas cylinder 8 reaches the end position of the inclined surface 61 by further lowering the material 6, the nozzle at the tip of the gas cylinder 8 is sufficiently pushed into the governor insertion hole 41. When 8 is attached to the governor 4 and the closing of the cover 5 is completed, the prism member 6 that contacts the attached state of the gas cylinder 8 to the governor 4 is held (FIGS. 3c and 4c).

As described above, in the cassette stove provided with the prismatic member 6 (mounting assisting means) according to the present embodiment, the cover 5 is simply closed while the gas cylinder 8 is placed in the cylinder accommodating portion 3 in a state of being detached from the governor 4. Even if the gas cylinder 8 is not pushed in the direction of the governor 4 by hand, the inclined surface 61 of the prism member 6 pushes the gas cylinder 8 in the direction of the governor 4 to be securely attached to the governor 4 and holds the gas cylinder 8. The lock on the sliding plate 43 and the abutment of the prism member 6 against the bottom edge of the gas cylinder 8 cooperate to hold the mounting state of the gas cylinder 8 mounted on the governor 4 more reliably and stably.

In addition, in this embodiment, although this invention was implemented to the cassette cooker provided with the attachment / detachment apparatus of the gas cylinder described in patent document 1 among prior arts, this invention is applied to the cassette cooker using a magnet for the attachment / detachment apparatus. Even when such a mounting assisting means is implemented, it is not necessary to mount the gas cylinder on the governor with the user's hand, and the mounting assisting means mounts the gas cylinder on the governor simply by closing the cover, so the mounting operation is simple and easy. At the same time, the adsorption by the magnet and the contact of the mounting auxiliary means cooperate to make the holding of the gas cylinder mounted on the governor more reliable and stable.

On the other hand, in the case of a cassette cooker that attaches and detaches a gas cylinder by operating an external lever using a link mechanism that is another conventional technique, even when the present invention is implemented, it is attached and detached by an external lever that has been pointed out as complicated. Since the operation has to be performed, the mounting operation itself cannot be made simpler and easier.

However, even in this case, if the present invention is implemented and the external lever is operated to attach the gas cylinder to the governor, then the cover is closed and the attachment auxiliary means is brought into contact with the bottom edge of the gas cylinder. The lock on the sliding plate holding the gas cylinder and the contact of the mounting auxiliary means on the gas cylinder bottom edge cooperate to hold the mounting state of the gas cylinder mounted on the governor more reliably and stably. .

As described above, when the present invention is applied to a cassette cooker that attaches and detaches a gas cylinder with an external lever using a link mechanism, the mounting auxiliary means abuts and holds the bottom edge of the gas cylinder mounted on the governor. It may be improved, and it can be considered that an inclined surface on which the gas cylinder placed in the cylinder accommodating portion in the detached state is attached by pushing in the governor direction is unnecessary.

Furthermore, in the cassette cooker equipped with the attachment / detachment device mentioned in the present embodiment and the cassette cooker equipped with the attachment / detachment device using a magnet, a prism without an inclined surface that pushes the gas cylinder 8 from the detached state to the attached state with respect to the governor insertion hole 41. When the member 6a is used as a mounting auxiliary means, the operability of the mounting operation cannot be improved, but the prism member 6a abuts against the bottom edge of the gas cylinder 8 mounted on the governor 4 by closing the cover 5, Reliable and stable holding with respect to the gas cylinder 8 in the mounted state is ensured and realized. (Fig. 5)

In this respect, it is not necessary to limit the mounting assisting means according to the present invention to the prism member having the inclined surface described in the embodiment, and an inclined surface that contacts the bottom edge of the gas cylinder and pushes it from the detached state to the mounted state. It is wide enough to occupy a position that abuts the bottom edge of the gas cylinder attached to the governor at the outer periphery when the cover is closed.

However, even when the mounting assisting means (the prismatic member 6a) does not have an inclined surface that pushes the gas cylinder 8 from the detached state to the mounted state, the prismatic member 6a is lowered when it is brought into contact with the bottom edge of the gas cylinder 8. In order to avoid interference with the gas cylinder 8 that may occur, it is preferable to form a small inclined surface 61a at the open end of the prism member 6a. (Fig. 5)

Further, in the cassette stove according to the present invention, the gas cylinder mounting auxiliary means 6 planted in the cover 5 descends from obliquely above the cylinder accommodating portion 3 as the cover 5 is closed, and the bottom edge of the gas cylinder 8 Therefore, the gas cylinder 8 may be irregularly rotated to prevent smooth attachment to the governor 4.

Such an irregular rotation of the gas cylinder 8 is a free movement space for facilitating the mounting of the gas cylinder 8 by hand in the lateral direction of the gas cylinder 8 placed in the accommodation space of the cylinder accommodation unit 3. Therefore, it can be easily solved by providing an anti-rotation means that abuts against the side surface of the gas cylinder 8 that has caused irregular rotation to narrow the movement space.

In this embodiment, the metal provided with the convex part 71 which protrudes in the direction of the cylinder accommodating part 3 in the surface at the side of the cylinder accommodating part 3 of the partition provided in the position which divides the burner accommodating part 2 and the cylinder accommodating part 3 The plate 7 was attached as a means for preventing rotation of the gas cylinder. (Fig. 6 and Fig. 7)

Irregular rotation of the gas cylinder 8 is caused by the attachment assisting means 6 coming into contact with the bottom edge of the gas cylinder 8, so that the position where the rotation prevention means comes into contact with the gas cylinder 8 that has caused irregular rotation, It is preferable that the position is in the vicinity of the bottom edge of the gas cylinder 8. In this embodiment, the position where the convex portion 71 of the metal plate 7 faces the lower side of the side surface of the gas cylinder 8 placed in the housing portion 3 is selected. The plate 7 is screwed to the partition wall.

The rotation preventing means may be a convex portion that protrudes in the direction of the cylinder accommodating portion 3 and abuts against the side surface portion of the gas cylinder 8 that has irregularly rotated, and is provided on the metal plate 7 selected in the present embodiment. Although it is not limited, if the metal plate 7 is screwed and fixed to the partition wall as in this embodiment, it can be immediately applied to the frame of an existing cassette stove, which is implemented in terms of production cost and production work load. It can be said that it becomes simple and easy.

It is a top view which shows the principal part of the cassette cooker which concerns on this invention. The perspective view which shows an example of the mounting assistance means of the gas cylinder provided in the cover of the cassette stove which concerns on this invention. The side view which shows typically the relationship between the mounting assistance means at the time of cover opening and closing, and a gas cylinder. The front view which shows typically the relationship between the installation assistance means at the time of cover opening and closing, and a gas cylinder. The front view which shows typically the relationship between the installation assistance means and gas cylinder which concern on other embodiment at the time of cover opening and closing. The perspective view which shows an example of the rotation prevention means which may be used for the cassette cooker concerning this invention. The perspective view which shows the example of installation of a rotation prevention means.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Stove body 2 Burner accommodating part 3 Cylinder accommodating part 4 Governor 5 Cover 6 Mounting assistance means 7 Anti-rotation means 8 Gas cylinder

Claims (3)

There is provided a burner accommodating portion for accommodating a gas burner, and a cylinder accommodating portion provided with a governor and configured to detachably accommodate a gas cylinder to the governor, and provided with an openable / closable cover for covering an open surface of the cylinder accommodating portion. Cassette stove,
When the cover is closed and the cylinder housing part is covered, the cylinder housing part protrudes into the cylinder housing part facing the inner surface of the cover, and
The outer periphery occupies a position in contact with the bottom edge of the gas cylinder in a state of being mounted on the governor.
A cassette stove characterized in that the gas cylinder mounting auxiliary means is planted on the inner surface side of the cover. The gas cylinder mounting assist means has an inclined surface on the outer peripheral portion thereof from the open end to the upper position, and the open end of the inclined surface at the open end of the inclined surface between the start of closing the cover and the completion of closing. The bottom part of the gas cylinder in a state of being attached to the governor at a position above the release end edge when occupying a position contacting the bottom edge of the gas cylinder in a state of being detached from the governor and completing the closing of the cover The cassette stove according to claim 1, wherein the cassette stove occupies a position in contact with the end edge. The gas cylinder rotation preventing means, which is a convex portion formed in the direction of the cylinder accommodating portion, is provided at a partition wall or a partition corresponding position that divides the burner accommodating portion and the cylinder accommodating portion. The cassette stove according to claim 1 or 2.