JP5238180B2 - Gas cylinder for portable stove - Google Patents

Description

  The present invention relates to a gas cylinder for a portable stove that can be used for a portable stove that can be used when, for example, a pan dish for one or a small number of people is provided.

  The present applicant has proposed what was disclosed by the following patent document 1 as a gas cylinder for portable stoves.

  This portable gas stove gas cylinder is used by being fitted to the lower surface of the portable stove from below and floating from the upper surface of the dining table. As shown in FIG. 102. The container 101 is filled with the liquefied gas 103, and the liquefied gas 103 is sucked up by the suction core 104, and the vaporized gas is selectively discharged from the nozzle portion 102a of the valve device 102.

  The suction core 104 is held in a state where it is hung from the valve device 102 by being inserted into a cylindrical holding portion 102b formed in the lower portion of the valve device 102. The length of the suction core 104 is set so that the lower end contacts the inner bottom surface of the container 101.

The suction core 104 is held only by insertion, but the lower end of the suction core 104 is in contact with the inner bottom surface of the container 101, so that the suction core 104 is basically not detached from the holding portion 102b. However, when the liquefied gas 103 in the container 101 shakes greatly as shown by the phantom line in FIG. 8, for example, when transporting, shaking to confirm the remaining amount of gas, or dropping unexpectedly, It is conceivable that the suction core 104 may move with the liquefied gas 103 swaying and come off the holding portion 102b.
JP 2004-245400 A

  Therefore, the main object of the present invention is to prevent the suction core from dropping off unexpectedly.

As means for the wick suck liquefied gas filled in the container, as well as a bar-shaped identical thickness over the entire longitudinal direction, the bottom of the provided valve apparatus to the upper end of said container, said valve for the cylindrical retaining portion is retained in the suspended state in the contact resistance parts insertion is inserted from below in the device, a fillable portable stove gas cylinder into the container through the liquefied gas wherein the valve device, wherein The container or the holding portion has a cylindrical or annular surrounding portion surrounding the suction core in a space containing liquefied gas, with a gap having a size that does not cause capillary action on the suction core. The portable stove gas cylinder is provided with restricting means for restricting the suction core from moving in the container as the liquefied gas shakes. The restricting means may be either attached to the valve device or provided on the container, and may be attached as attached to the suction core.

  The restricting means restricts the movement of the suction core in the container. Even if the liquefied gas is shaken in a state where the container is filled with the liquefied gas, the movement is regulated regardless of the shake. For this reason, even if it shakes or shakes, the suction core does not fall off from the valve device.

  As described above, according to the present invention, it is possible to prevent the suction core from falling off and maintain a usable state.

  The purpose of preventing the suction core from accidentally falling off is realized by providing a restricting means for restricting the suction core from moving in the container as the liquefied gas shakes.

An embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a one-side sectional view showing a configuration of a gas cylinder 11 for portable stove (hereinafter referred to as “cylinder”), and FIG. 2 is a sectional view showing a configuration of a portable stove 51 (hereinafter referred to as “stove”). It is.

  The cylinder 11 is detachably attached to the lower surface of the stove 51 having a stove main body 61 and a support base 71 that supports the stove main body 61 at a predetermined height. Is surrounded by the support table 71 and floats from the upper surface of the table.

  The cylinder 11 is attached to a connection port 62 having a substantially cylindrical shape provided on the lower surface of the stove main body 61. As shown in FIG. 1, the cylinder 11 is attached to the main body member 21 enclosing the liquefied gas 12 and the stove main body 61. The connection member 31 is fitted to the upper end portion of the main body member 21 for connection, and the lid member 41 is placed on the connection member 31 when not in use.

  The main body member 21 includes a container body 22 made of a transparent synthetic resin, a valve device 23 provided in an opening at the upper end of the container body 22, and a cap member 24 that closes the opening of the container body 22 in an airtight state. Have The cap member 24 is made of metal and is inseparably integrated with the container body 22 by fixing by caulking.

  The container body 22 is formed such that the lower part is larger in the horizontal direction than the upper part, and can be stably grounded even when dropped from above, for example. A metal exterior member 25 is attached to the outer peripheral surface of the container body 22. A plurality of see-through windows 26 are formed in the exterior member 25 so that the remaining amount of the liquefied gas 12 contained therein can be seen at a glance. The see-through window 26 is formed in a vertically long oval shape as shown in the figure, and, as shown in FIG. 1, for example, the upper limit of the liquefied gas 12 to be sealed is shown on the edge of the see-through window 26. Display 27 is displayed.

  The valve device 23 has a vertically movable nozzle portion 23 a that is biased upward so as to eject gas when connected to the connection port 62 of the stove body 61. That is, when the cylinder 11 is connected to the connection port 62, the nozzle portion 23a is pushed down and the gas 12 is ejected. On the other hand, when the cylinder 11 is removed from the connection port 62, the nozzle portion 23a is moved up by the urging force and the gas ejection stops. The valve device 23 is also configured to be able to fill the liquefied gas 12.

  Further, a cylindrical holding portion 23b communicating with the nozzle portion 23a is formed in a portion of the valve device 23 that fits in the container body 22. A suction core 28 is inserted into the holding portion 23b from below and is held in a suspended state. The length of the suction core 28 is such a length that the lower end hits the inner bottom surface of the container body 22 when inserted.

  A coil spring member 82 as a restricting means 81 for restricting the movement of the suction core 28 in the container body 22 is attached to the outer peripheral surface of the holding portion 23b as shown in FIG.

  The coil spring member 82 is made of a metal linear body, is flexible, and is formed in a spiral shape having a gap 82a having a size that allows the liquefied gas 12 to flow between the linear bodies. The thickness is set to be smaller than the thickness of the holding portion 23b as a whole and thicker than the suction core 28, and the length is set to a length that fits in the container body 22 when the upper end portion is fitted into the holding portion 23b. doing.

  That is, the upper end portion (one end portion) of the coil spring member 82 is a fixing portion 82 b for the holding portion 23 b, and the other portion is a surrounding portion 82 c that forms a cylinder surrounding the suction core 28. Since the thickness is smaller than the thickness of the holding portion 23b as described above, the fixing portion 82b can be firmly fixed to the holding portion 23b and will not come off due to an impact.

  The coil spring member 82 maintains its own form and tries to return to its original form due to material elasticity and flexibility even if it is bent by receiving an external force. For this reason, the movement of the suction core 28 can be regulated. The gap 82a may be set to an appropriate size that allows the flow of the liquefied gas 12 freely. Even if the diameter of the coil spring member 82 is in close contact with the suction core, the clearance function is improved. No abnormalities will occur.

  The connection member 31 is fitted on the upper end portion of the main body member 21. That is, it has a cylindrical neck portion 32 having a hole portion through which the nozzle portion 23a of the valve device 23 is provided on the upper end surface, and a shoulder portion 63 extending from the lower end of the neck portion 32 so as to spread in the outer peripheral direction. On the outer periphery of the neck portion 32, a male screw 32a for being screwed into the connection port 62 is formed. The shoulder 33 is formed in an inverted L-shaped cross section, and has a horizontal horizontal surface 33a and a vertical surface 33b that descends downward from the tip of the horizontal surface 33a. The vertical surface 33b is fitted to a step portion 22a formed on the upper portion of the container body 22 from above and is coupled so as not to be relatively rotatable in the circumferential direction.

  A cover member 34 is attached to the shoulder portion 33. The cover member 34 is made of metal and has a ring shape having an L-shaped cross section that covers the horizontal surface 33a and the vertical surface 33b. By having the cover member 34, the shoulder 33 of the connection member 31 is protected from impact, heat, dirt, and the like. Although not shown, information on the cylinder 11, preferably information on the safety of the cylinder 11 is displayed on the upper surface of the cover member 34. The display can be performed by an appropriate means. However, if it is performed by, for example, engraving, it does not disappear easily, and even if the shoulder portion 33 is made of synthetic resin, it does not give a cheap impression, so the viewer's attention can be drawn. . As information on the safety, for example, information such as “expiration date” can be given because the cylinder 11 can repeatedly use and fill the liquefied gas 12. The expiration date is determined from a technical point of view in consideration of the possibility of deterioration of each member due to repeated use.

  When such a connection member 31 is fitted to the main body member 21, a deformation member 91 is interposed between the opposing surfaces. The deformable member 91 is deformed by receiving a heat and raising its temperature, and is entirely formed of bimetal. The shape is a ring shape having an inverted L-shaped cross section that overlaps the inner peripheral surface of the neck portion 32 of the connection member 31, and when the heat is applied to a predetermined temperature or higher, the lower portion expands in the outer peripheral direction, The main body member 21 is released by releasing the fitting state. The deformation member 91 may be included in the connection member 31, may be included in the main body member 21, or may be independent of any of them.

  On the other hand, as shown in FIG. 2, the stove main body 61 has the connection port 62 that connects the cylinder 11 so as to protrude downward, and is ejected from the cylinder 11 at a position above the connection port 62 inside. A switch 64 is provided for opening and closing the gas toward the burner 63 built in the center. The switch 64 opens and closes continuously from fully closed to fully open, and has a rotatable operation knob 65 for performing this opening and closing.

  In order to regulate the angle by controlling the rotational operation of the operation knob 65, a regulation dial portion 66 having an uneven outer peripheral surface is provided inside the operation knob 65, while the operation knob 65 is rotated. A regulating member 67 that is L-shaped in a side view and can be elastically displaced is provided on the main body side that can be supported. The distal end portion of the restricting member 67 is in sliding contact with the unevenness of the restricting dial portion 66 so that the rotation angle of the operation knob 65 can be finely adjusted and the set rotation angle can be maintained.

  In addition, a heat conduction plate 68 made of a metal material having good heat conductivity is attached to the lower side of the burner 63 on the lower surface of the stove body 61. The heat conduction plate 68 has an attachment portion 68a attached to the lower surface of the stove main body 61, and a hanging piece 68b is formed at the end of the attachment portion 68a. The hanging piece 68b is formed at the lower end of the hanging piece 68b. A contact portion 68c having an arc shape in plan view is formed so as to hold the cylinder 11. Due to the presence of the heat conducting plate 68, it is possible to eliminate the vaporization failure caused by the temperature drop accompanying the vaporization of the liquid gas 12, and to maintain a desired thermal power by keeping the gas pressure constant.

  The support base 71 that supports the stove main body 61 has a substantially cylindrical shape having a receiving portion 72 that receives the lower surface of the stove main body 61 in the inner peripheral portion. The height of the support base 71 is shown in FIG. As described above, when the cylinder 11 is connected to the connection port 62, the cylinder 11 is suspended in the air, that is, between the lower surface of the cylinder 11 connected to the connection port 62 and the upper surface (grounding surface) of the table on which the support base 71 is grounded. It is set to a height that allows for space. And the height is necessary for the nozzle part 23a of the valve device 23 to return to the original protruding position according to the urging force when the cylinder 11 connected to the connection port 62 falls off from the connection port 62, and to stop the gas ejection. Height.

  As described above, the cylinder 11 having the coil spring member 82 has the container body 22 filled with the liquefied gas 12 because the coil spring member 82 restricts the movement of the suction core 28, and the liquefied gas 12 is shaken. But it doesn't move much with it. For this reason, even when the cylinder 11 is shaken or shaken in a non-use state where the cylinder 11 is not attached to the stove 51, the suction core 28 does not accidentally drop off from the valve device 23, and functions as a cylinder. It can be secured.

  The same applies to the case where the cylinder 11 is attached to the stove 51.

  In particular, since the cylinder 11 includes the interposition member 91 as described above, when the temperature of the cylinder 11 rises unexpectedly in various usage situations, The interposition member 91 provided between the connecting member 31 and the connecting member 31 is deformed so that the lower portion thereof is bent back to the outer peripheral side. As a result, the main body member 21 is separated from the connecting member 31 and falls by its own weight. When the cylinder 11 falls, the nozzle portion 23a of the valve device 23 provided in the main body member 21 of the cylinder 11 moves upward, and the gas 12 stops being ejected. Since the dropped main body member 21 is sealed with the cap member 24, the gas 12 does not leak, and because of the form of the container body 52, the body member 21 is stably grounded without falling over when dropped.

  Even if the liquefied gas 12 in the container body 22 is shaken by the impact of the drop, the coil spring member 82 restricts the movement of the suction core 28 due to the vibration. It will not drop out.

  Thus, even if the cylinder 11 is shaken or shaken in handling or dropped for safety, the suction core 28 does not fall off and is used even if handled violently. A possible state can be secured.

  In addition, as described above, the stove 51 is an extremely safe stove 51 that is easy to operate with thermal power, can obtain a constant thermal power continuously, can avoid unexpected situations, and is extremely safe. .

  On the other hand, the cylinder 11 is provided with a cover member 34 to protect a part of the connecting member 31 of the cylinder 11 and the cover member 34 is provided with information necessary for safety regarding the cylinder 11. Can call attention.

  Furthermore, although the cylinder 11 is configured using a container body 22 made of a transparent synthetic resin, the container body 22 is protected by an exterior member 25 and is highly safe. Since it has the see-through window 26, the remaining amount of the gas 12 can be visually recognized at a glance. As a result, the gas 12 can be replenished as necessary, and an inappropriate use state in which the gas 12 is filled more than necessary can be prevented.

  Hereinafter, another example of the regulating means 81 in the cylinder 11 will be described. In this description, the same parts as those in the above configuration are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the example shown in FIG. 4, the regulating means 81 is configured by a tubular tube member 83. The pipe member 83 is formed of an appropriate material such as synthetic resin or metal, and has an upper end portion with a fixing portion 83b fitted to the holding portion 23b, and a lower portion surrounding the suction core 28 with a surrounding portion 83c. Have

  A plurality of flow holes 83 a are formed in the surrounding portion 83 c as gaps that allow the flow of the liquefied gas 12. The circulation hole 83a is circular and is disposed over the entire length of the surrounding portion 83c. In particular, it is provided above the portion corresponding to the upper limit position where the liquefied gas 12 is filled. As a result, even if a capillary phenomenon occurs between the surrounding portion 83c and the suction core 28, the suction due to the capillary action can be blocked at a position above the liquid level of the liquefied gas 12, and the suction core 28 can perform the suction. There is no abnormality in function. The inner diameter of the surrounding portion 83c, that is, the size of the clearance (clearance) between the surrounding portion 83c and the suction core 28 is set as appropriate, but the clearance (clearance) is between the surrounding portion 83c and the suction core 28. It is preferable that the size does not cause capillary action.

  In the example shown in FIG. 5, like the example shown in FIG. 4, the restricting means 81 is composed of a tubular tube member 83. Only the differences will be described. The shape of the flow hole 83a is as follows. This is an example of being vertically long.

  A plurality of circulation holes 83a are formed in the circumferential direction over substantially the entire length of the surrounding portion 83c. Also in this case, an effect similar to that of the restricting means 81 shown in FIG. 4 can be obtained.

  The example shown in FIG. 6 is a regulating member 84 in which the regulating means 81 is formed of a linear body. That is, the regulating member 84 is formed by bending a metal linear body, and a fixing portion 84b that fits into the holding portion 23b is formed at the upper end portion, and extends downward from a part of the fixing portion. A hanging portion 84d is provided, and an annular surrounding portion 84c surrounding the suction core 28 is formed at the lower end of the hanging portion 84d. The height of the surrounding portion 84c is appropriately set based on conditions such as the upper limit value of the liquefied gas 12 to be filled. There may be a plurality of the surrounding portions 84c.

  The example shown in FIG. 7 is an example in which the restricting means 81 is configured by a restricting member 85 attached to the container body 22 side instead of the valve device 23. That is, the restricting member 85 is attached by being fitted to the upper end portion of the container body 22. The restricting member 85 has an annular fitting portion 85 b that fits into a concave portion 22 b formed on the inner peripheral surface of the upper end portion of the container body 22, and the fitting portion 85 b is pressed by attachment of the valve device 23. It is held by the container body 22. A hanging portion 85d extending downward is extended from a part of the fitting portion 85b, and an annular surrounding portion 85c surrounding the suction core 28 is formed at the lower end of the hanging portion 85d. The surrounding portion 85c is also set to an appropriate height as in the example shown in FIG.

In correspondence between the configuration of the present invention and the configuration of the above-described embodiment,
The container of the present invention corresponds to the main body member 21 of the above embodiment,
The present invention is not limited to the configuration of the above-described embodiment.

The half sectional view of the gas cylinder for portable cooktops. Sectional drawing of a portable stove. Sectional drawing of the gas cylinder for portable stoves. Sectional drawing of the gas cylinder for portable stoves which concerns on another example. Sectional drawing of the gas cylinder for portable stoves which concerns on another example. Sectional drawing of the gas cylinder for portable stoves which concerns on another example. Sectional drawing of the gas cylinder for portable stoves which concerns on another example. Sectional drawing of a prior art example.

DESCRIPTION OF SYMBOLS 11 ... Gas cylinder for portable stove 12 ... Liquefied gas 21 ... Main body member 23 ... Valve device 23b ... Holding part 28 ... Suction core 81 ... Restricting means 82 ... Coil spring member 82a ... Gap 82c ... Surrounding part 83 ... Pipe member 83a ... Distribution hole 83c ... Go part 84 ... Restriction member 84c ... Go part 85 ... Restriction member 85c ... Go part

Claims (4)

The suction core that sucks up the liquefied gas filled in the container is a rod having the same thickness throughout the longitudinal direction, and the cylindrical shape of the valve device is provided below the valve device provided at the upper end of the container. held against the portion held in the suspended state in the contact resistance parts insertion plugged from below, the liquefied gas is a portable stove gas cylinders that can be filled in the container through the valve device,
The container or the holding portion has a cylindrical or annular surrounding portion surrounding the suction core in a space containing liquefied gas, with a gap of a size not to cause capillary action on the suction core. A portable gas stove gas cylinder provided with regulating means for regulating the suction core from moving in the container as the liquefied gas shakes. The portable gas stove gas cylinder according to claim 1, wherein the restricting means is attached to an outer peripheral surface of the holding portion formed in a lower portion of the valve device. The gas cylinder for a portable stove according to claim 1 or 2, wherein the surrounding portion is formed in a spiral shape having a gap allowing the flow of liquefied gas. The portable gas stove gas cylinder according to claim 1 or 2, wherein a gap allowing the flow of the liquefied gas is formed in the surrounding portion.

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