JPH0442641Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a cassette stove in which a small-capacity gas cylinder is removably loaded and used as a gas supply source.

(Prior Art) This type of cassette stove tends to have a simpler structure and lighter weight in terms of ease of handling and cost.

Therefore, a structure was adopted in which an intermediate connecting rod made of a plate is provided at the boundary between the burner chamber and the cylinder storage chamber of the stove case, and it is passed between the front and rear walls of the opening of the stove case. This provides reinforcement against falling or twisting of the peripheral wall of the tank, and provides a seating area for the juice pan that covers the burner chamber and the opening/closing lid installed in the cylinder storage chamber.

(Problems that the invention aims to solve) However, as mentioned above, the intermediate connecting rod itself has been further simplified and lightened, and the stove case has a simple structure in which the bottom plate is attached to the peripheral wall of a bent aluminum extrusion. As it becomes simpler and lighter, the intermediate connecting rod and the stove surrounding wall often become unstable due to lack of rigidity, or the intermediate connecting rod often bends due to stiff external forces. It has become difficult to handle and use.

Therefore, the purpose of the present invention is to solve the above-mentioned problems without sacrificing simplification and weight reduction, and to provide a cassette stove that is easy to use and highly durable by maintaining sufficient rigidity. It is something.

(Means for solving the problem) In order to achieve the above-mentioned purpose, the present invention
In a casette stove with a structure in which an intermediate connecting rod made of a plate is provided at the boundary between the burner chamber and the cylinder storage chamber of the stove case and is passed between the front and rear walls of the opening of the stove case, the intermediate connecting rod is attached to the bottom plate of the stove case. A tongue piece whose width direction coincides with the longitudinal direction is formed by pushing upward, and the upper end piece of this tongue piece is fitted into a slit formed in the longitudinal direction midway through the intermediate connecting rod so as not to come off, thereby forming the intermediate connecting rod. It is characterized by being connected.

(Function) The tongue piece formed by being raised from the bottom plate exhibits high rigidity in its width direction, and by being connected to the intermediate connecting rod, can prevent the intermediate connecting rod from moving relative to the bottom plate in the longitudinal direction. can. This also prevents the peripheral wall from falling relative to the bottom plate and the stove case as a whole from twisting. Furthermore, the middle portion of the intermediate connecting rod, which is likely to lack strength, is sufficiently reinforced by the tongue piece, which is firmly connected to the tongue piece from below in a manner that prevents it from slipping out.

(Example) Examples of the present invention shown in FIGS. 1 to 6 will be specifically described.

In the case stove of this embodiment, a bottom plate 1b is attached to a lower flange 51 of a peripheral wall 1a formed by bending an extruded aluminum plate as shown in FIG. 1, and a bottom plate 1b is attached as shown in FIGS. A rectangular stove case 1 is constructed by attaching resin covers 9, 9 to the front and rear surfaces of the peripheral wall 1a, respectively. A burner chamber 3 in which a gas burner 2 is installed in the stove case 1 and a cylinder storage chamber 4 in which a gas cylinder 17 is loaded so as to be received in the recess 4a are formed adjacent to each other. In this embodiment, a double cylinder type is shown in which gas is simultaneously supplied to the gas burner 2 from two gas cylinders 17 connected to two cylinder connection ports 23 in the cylinder storage chamber 4.

A soup tray 7 with a trivet 6 is removably fitted into a tray holder flange 5 integrally formed on the inner periphery of the opening of the burner chamber 3. The cylinder storage chamber 4
The top and side surfaces are open, and a lower-hinged lid 8 is provided at the opening. The front side of the cylinder storage chamber 4 serves as an operation section 24, and is provided with a knob 21 and a cylinder set operation section 22b.

An intermediate connecting rod 10 made of a plate having a cross-sectional shape is provided at the boundary between the burner chamber 3 and the cylinder storage chamber 4. This intermediate connecting rod 10 is extended between the front and rear walls of the opening of the stove case 1 and has both ends connected to the plate support flange 5.
The upper surface 10a thereof is flush with the tray receiving flange 5, and serves as a tray receiving surface for the juice tray 7, and also serves as a seating portion for the lid 8. A protrusion 12 is provided on the upper surface 10a by partially raising the protrusion 12 at a position eccentric from the center. This protrusion 12 interferes with the periphery of the soup tray 7 when it is fitted upside down, making it float, and serves to remind the user that the soup tray 7 is upside down. This prevents the burner 2 from being ignited and used in this state. A spring 13 is protruded from the upper surface 10a in the vicinity of the protrusion 12, and a slit 14 is formed in the side portion 10b of the spring 13 in the longitudinal direction.

On a portion of the bottom plate 1b of the stove case 1 that becomes the bottom surface 3a of the burner chamber 3, two protrusions 15 are formed upwardly, as shown in FIG. This protruding piece 15 serves to prevent a user from storing a spare cylinder in the burner chamber 3 when the user attempts to do so.

Further, on the bottom surface 3a, a tongue piece 16 whose width direction coincides with the longitudinal direction of the intermediate connecting rod 10 is also formed by being raised upward. This tongue piece 16 has an inverted L-shape, and as shown in FIG. 2b, a downwardly raised retaining protrusion 16b is formed on its horizontal upper end piece 16a. Thus, the tongue piece 16 is inserted into the slit 14 of the intermediate connecting rod 10 as shown by the arrow in FIG.
When the upper end piece 16a is inserted, as shown in FIG. Keep it in contact and prevent it from coming off. Further, the lifting spring 13 hooks onto the flange end 8a of the lid 8 and elastically locks the lid 8 in the closed state.

As shown in FIG. 3, the resin cover 9 attached to the front and rear surfaces of the cylinder storage chamber 4 has a flange 9a at the lower end connected to the bottom plate 1b by screws 19, 19.
installed on. Furthermore, since the legs 20 are integrally formed on the flange 9a, the cost can be reduced compared to a normal cassette stove. Furthermore, a connecting piece 9b that connects to the peripheral wall 1a of the stove case 1 is integrally formed on the upper left portion of the inner surface of the resin cover 9, and also serves as a bearing for the pivot shaft 18 of the lid 8. The connecting piece 9b has an engaging protrusion 9c on its upper surface, which engages with the hole 5a of the flange 5. Furthermore, the front surface of the resin cover 9 on the front side is connected to a cylinder set lever 22 as shown in FIG.
The metal portion 22a is bulged forward in line with the trajectory of the knob 22b of the cylinder set lever 22 so that the metal portion 22a is not exposed during operation. A slit 9 for externally operating the lever 22 is provided in the center of this bulging portion 9d.
e is formed. Therefore, when the lever 22 is rotated in an arc, only the knob 22b at the end of the lever 22 is visible, resulting in a good appearance, and the knob 22b moves along the outer surface of the case, allowing operation without a sense of instability.

The tongue piece 16 formed by being raised from the bottom plate 1b exhibits high rigidity in its width direction, and by being connected to the intermediate connecting rod 10, prevents the intermediate connecting rod 10 from moving relative to the bottom plate 1b in the longitudinal direction. Because it is possible to
It is possible to prevent the peripheral wall 1a from falling with respect to the bottom plate 1b and the stove case 1 as a whole from twisting.
Sufficient rigidity is exhibited when the knob 21 is strongly operated while holding down the other end of the stove case 1. It also depends on the suppression of the relative movement. Further, the middle portion of the intermediate connecting rod 10, which is likely to be insufficient in strength, is sufficiently reinforced by the tongue piece 16, and is firmly connected from below in a state of being prevented from coming off by the action of the retaining piece 16b.

In the double cylinder type cassette stove as in this embodiment, even if only one gas cylinder 17 is connected and used, gas leakage from the other cylinder connection port 23 is avoided. Therefore, a check valve 24 as shown in FIG. 6 is provided in the cylinder connection port 23 to prevent gas from leaking. As shown in FIG. 6, the check valve 24 of this embodiment is pressed against the check valve seat 28 by the bias of the spring 27 applied between the gas supply main body 26 and the connection port 23 inside. It is starting to close. A valve seat 28 is provided around the base of the check valve 24.
An O-ring 29 that presses against the key-shaped inner surface A of the valve seat 28 and an O-ring 30 that presses against the cylindrical inner surface B of the valve seat 28 are provided. The contact between the inclined stepped surface of the key-shaped inner surface A and the O-ring 29 may cause the check valve 2 to get stuck in the gas supply path 26a.
4 floats and tends to cause gas leakage, but gaps are less likely to form at the contact portion with the cylindrical surface of the key-shaped inner surface A, making it easier to prevent gas leakage.

Moreover, in the check valve 24, one O-ring 30 is in contact with the cylindrical inner surface B, so that the same reliable seal is achieved twice.

Therefore, it is possible to reliably prevent gas leakage due to encroachment of dust.

A modification of the present embodiment shown in FIG. 7 shows a part of a cassette cooking stove of the type that supplies gas from one gas cylinder connected to one cylinder connection port 23. In this modification, since the cylinder storage chamber 4 is narrower, the shapes of the resin covers 9 attached to the front and rear surfaces thereof are only slightly different.
Since the main structure is the same as that of this embodiment, the explanation thereof will be omitted (common parts are indicated by common symbols).

(Effects of the invention) According to the Cassette stove of the present invention, an intermediate connecting rod made of a plate is provided at the boundary between the burner chamber and the cylinder storage chamber of the stove case, and the structure is extended between the front and rear walls of the opening of the stove case. In the case stove,
A tongue piece whose width direction coincides with the longitudinal direction of the intermediate connecting rod is formed on the bottom plate of the stove case by pushing upward, and the upper end piece of this tongue piece is inserted into a slit formed in the longitudinal direction midway through the intermediate connecting rod to prevent it from falling out. Since the tongue piece is inserted in the state and connected to the intermediate connecting rod, the tongue piece exhibits high rigidity in the width direction, and by connecting with the intermediate connecting rod, it is possible to prevent relative movement with the bottom plate in the longitudinal direction. This prevents the peripheral wall from falling with respect to the bottom plate, and prevents the stove case as a whole from twisting. Furthermore, the middle portion of the intermediate connecting rod, which is likely to lack strength, is sufficiently reinforced by the tongue piece, which is firmly connected to the tongue piece from below in a manner that prevents it from slipping out.

Therefore, by further simplifying and reducing the weight of the stove case, especially the surrounding wall and intermediate connecting rod, the stove case has sufficient rigidity, and is easy to handle and use without rattling, twisting, or partial deformation. Moreover, it is possible to provide a highly durable cassette stove.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view showing its outer frame structure, FIGS. , Figure 4 is a front view with the main parts exposed, Figure 5
The figure is a partial side view, FIG. 6 is a cross-sectional plan view of the inside of the cylinder connection port, and FIG. 7 is a perspective view showing a portion of a modification of the present invention. {1a... peripheral wall, 1b... bottom plate} 1... stove case, 3... burner room, 4... cylinder storage room,
10... Intermediate connecting rod, 14... Slit, 16a
... Upper end piece, 16b... Retaining piece, 16... Tongue piece.

Claims (1)

[Scope of Claim for Utility Model Registration] In a cassette stove with a structure in which an intermediate connection rod made of a plate is provided at the boundary between the burner chamber and the cylinder storage chamber of the stove case and is passed between the front and rear walls of the opening of the stove case, A tongue piece whose width direction coincides with the longitudinal direction of the intermediate connecting rod is formed on the bottom plate of the case by upwardly protruding.
A cassette stove characterized in that the upper end piece of the tongue piece is fitted into a slit formed midway in the longitudinal direction of the intermediate connecting rod to prevent it from coming off, thereby connecting it to the intermediate connecting rod.