JP2011226580A - Gas supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To detect a charge state of a plurality of gas cylinders in a state of a lid body opening/closing a cylinder charge space part.SOLUTION: Attachment/detachment to/from a cylinder supply unit 11 of the plurality of gas cylinders 100 charged inside the cylinder charge space part 3 is performed in a lump by opening/closing operation of the lid body 9, and the lid body is held, by a lid body cam lock mechanism 12, in a different position between a first lock state that the lid body is held in a state that all the gas cylinders are connected to the gas supply unit inside the cylinder charge space part, and a second lock state that the lid body is held in a state that the portable gas cylinder is not charged inside the cylinder charge space part.

Description

  The present invention supplies fuel gas to a combustion device such as a gas stove in which a plurality of portable fuel gas cylinders (hereinafter abbreviated as gas cylinders in the present specification) are loaded and connected in a cylinder loading space portion configured in a casing. The present invention relates to a gas supply device.

  The gas cylinder is loaded in, for example, a portable gas stove, a gas lighting device, or various devices (collectively referred to as a combustion device in this specification), and supplies a fuel gas such as liquefied butane gas filled therein. As shown in FIG. 12, a gas cylinder 100 marketed as a standard product has a valve assembly 103 assembled on the upper portion of a cylindrical can body 101 whose bottom is closed by a bottom plate 102, and liquefied fuel is contained in a sealed internal space 104. Filled with gas.

  The gas cylinder 100 is integrated with the inner periphery of the top dome 105 by providing a substantially conical top dome 105 having a large-diameter opening and a positioning notch 106A, although details are omitted. The top plate 106, the cap member 107 assembled to the opening of the top dome 105, the valve mechanism 108 assembled to the cap member 107, and the like.

  In the gas cylinder 100, the top dome 105 is integrated with the can body 101 by forming a tightening portion 109 that overlaps the opening edge and the outer peripheral edge portion and protrudes outward over the entire circumference. The gas cylinder 100 includes a cylindrical valve main body 110 in which a valve mechanism 108 is caulked to a cylindrical mounting portion formed on the cap member 107, and a valve member 111 slidably combined in the valve main body 110. A stem 112 assembled with one end projecting from the valve member 111, a stem gasket 113 that seals between the valve body 110 and the cap member 107, a coil spring 114 that pushes up the valve member 111, and a siphon tube provided in the valve body 110 115 and the like.

  The gas cylinder 100 is opened laterally at the base end portion of the stem 112 to form a gas flow path, and is normally closed by the stem gasket 113 in a state where the valve member 111 is pushed up by the elastic force of the coil spring 114. The gas cylinder 100 presses the stem 112 and moves the valve member 111 inside the valve body 110 against the elastic force of the coil spring 114 so that the gas flow path of the stem 112 by the stem gasket 113 is opened. To. In the gas cylinder 100, the positioning notch portion 106A of the top plate 106 and the siphon tube 115 are combined at corresponding positions.

  On the other hand, although details of the combustion device are omitted, a gas cylinder loading unit for loading the gas cylinder 100 in the casing, a lever mechanism for moving the loaded gas cylinder 100, a holding valve mechanism for attaching and detaching the stem 112 of the gas cylinder 100, and holding A gas flow path that communicates with the valve mechanism, a pressure regulator that adjusts the supply gas pressure and supplies the pressure to the combustion unit, and the like are provided. The combustion device operates the lever mechanism to move the gas cylinder 100 and pushes the stem 112 into the holding valve mechanism to open the valve mechanism 108, whereby the holding valve mechanism is also released from the gas flow path. The gas cylinder 100 is held. The combustion equipment supplies fuel gas from the gas cylinder 100 to the gas flow path via the holding valve mechanism, and supplies the fuel gas adjusted to a predetermined supply gas pressure by the pressure regulator to the combustion section.

  By the way, the commercially available standard gas cylinder 100 has a 250 g capacity specification and is easy to carry and handle. For example, the gas cylinder 100 is suitably used for a tabletop gas stove in a home. However, such a gas cylinder 100, for example, when it is continuously used in the field for a relatively long time, needs to be frequently replaced and a necessary high gas pressure (high thermal power) cannot be obtained. There's a problem. The gas cylinder 100 is also used as a fuel source for a so-called personal tiller. However, there is a problem that it is difficult to obtain a necessary high output pressure characteristic and troublesome replacement frequency when used for a long time.

  Patent Document 1 describes a tabletop gas stove used by loading two gas cylinders. In such a tabletop gas stove, the use of two gas cylinders eliminates the above-described problems of exchange and high output pressure characteristics. In the tabletop gas stove, a cylinder connection port is provided corresponding to each gas cylinder, and two gas cylinders can be attached and detached at the same time by operating one operation member, thereby improving operability and safety. However, since such a tabletop gas stove is used by loading two gas cylinders, the whole becomes large, and there is a problem that it is not suitable for installation on a table at home.

  Patent Document 2 discloses a portable fuel gas supply in which a plurality of gas cylinders are loaded into a cylinder loading space portion configured in a casing, various combustion devices are connected, and fuel gas is supplied to the combustion devices. An apparatus (gas supply apparatus) is described. Such a gas supply apparatus is an apparatus independent of the combustion equipment, and can be connected to the combustion equipment for a long time by being connected as necessary.

Japanese Utility Model Publication No. 62-15600 Japanese Utility Model Publication No. 5-90135

  By the way, conventional combustion equipment and gas supply devices (hereinafter collectively referred to as gas supply devices in this specification) that use a plurality of conventional gas cylinders loaded in the cylinder loading space are generally defined in the cylinder loading space. It is possible to use without loading the number of gas cylinders. In the gas supply apparatus, check valves are provided in a plurality of holding valve mechanisms to which the gas cylinders are individually coupled, and the fuel gas is configured not to flow out from the holding valve mechanism not coupled to the gas cylinder. In the gas supply device, the check valve may be worn out due to long-term use, or gas may leak from the holding valve mechanism that is not connected to the gas cylinder due to the attachment of dust or the like.

  Moreover, in a gas supply apparatus, it is necessary to remove and store all gas cylinders after use for safety. In the gas supply device, some kind of detection structure for detecting the removal state of the gas cylinder is necessary, but conventionally, such a configuration has not been provided.

  The present invention relates to a gas supply apparatus for supplying a fuel gas by loading a plurality of gas cylinders into a cylinder loading space part configured in a casing, and a state in which all the specified number of gas cylinders are correctly loaded in the cylinder loading space part. It is an object of the present invention to provide a gas supply device that can be visually discriminated from a state that has not been performed and that can supply gas to a combustion device in a normal loading state, thereby improving safety and efficiency.

  A gas supply apparatus according to the present invention that achieves the above-described object is to supply a fuel gas to a combustion device connected through a gas supply unit by loading a plurality of gas cylinders into a cylinder loading space portion configured in a casing. To do. The gas supply device opens and closes a cylinder loading space for loading a gas cylinder, moves the gas cylinder by an opening / closing operation, and attaches / detaches the gas supply unit, and moves and moves the gas cylinder to hold and close the lid. A lid cam lock mechanism that releases the gas cylinder from the fitted state with the gas supply unit by a lid operation is provided.

  In the gas supply device according to the present invention, the first lock state in which the lid is held by the lid cam lock mechanism in a state where the specified number of gas cylinders are all correctly coupled to the gas supply unit in the cylinder loading space, and the cylinder It is held in a second locked state that is held in a state in which the prescribed number of gas cylinders are not loaded in the loading space portion or in a state where they are not properly coupled. In the gas supply device, the lid is held at different rotation positions with respect to the housing in the first locked state and the second locked state, thereby reliably identifying the loading state of the gas cylinder in the cylinder loading space. To be done.

  Further, the gas supply device according to the present invention that achieves the above-described object operates by opening a predetermined number of gas cylinders in the cylinder loading space, and the valve structures of the loaded gas cylinders are respectively fitted to each other. And a plurality of holding valve mechanisms for holding the gas cylinder fitted state, a gas flow path communicating with these holding valve mechanisms, a pressure regulator for adjusting the supply gas pressure, and a gas supply unit having a plug part for the main plug Supply fuel gas to connected combustion equipment. The gas supply device is defined by assembling a valve structure with a built-in valve mechanism in a cylinder loading space portion through one end side of each cylindrical can body through a tightening portion protruding outward over the entire circumference. A number of gas cylinders are loaded.

  The gas supply device according to the present invention includes a casing, a lid, a cylinder operating member, and a lid cam lock mechanism. The gas supply device has a box shape in which the ceiling is opened by the bottom plate, the front plate, a pair of left and right side plates, and the back plate, and the opened ceiling is defined inside as a cylinder loading opening. A cylinder loading space is formed in which a number of gas cylinders are loaded side by side so that the valve structures face each other toward the front plate. In the gas supply device, the lid includes a cover plate portion that closes at least a part of the cylinder loading space portion of the housing, a pair of left and right side plate portions that face the side plates of the housing, and a back plate portion. The lid body is rotatably supported by a support shaft that is supported between the side plates of the housing at a portion located on the back plate side of the side plate portion, and is spaced apart from the side plate portion in the height direction. And a cam portion comprising the second cam portion is formed.

  In the gas supply device, the cylinder operating member is provided on the back plate portion of the lid, and the valve assembly is pressed by pressing the gas cylinder loaded in the cylinder loading space portion with the closing operation of the lid toward the front plate of the housing. Are respectively fitted to the holding valve mechanisms opposed to each other in the gas supply unit. In the gas supply device, the lid cam lock mechanism includes a cam lever and an elastic member. The lid cam lock mechanism is provided with a cam receiving portion in which the cam lever is movably combined with the inner surface of the side plate of the housing, and the first cam portion or the second cam portion of the lid body is engaged with the rear end portion. In addition, a cylinder engaging portion is formed at a position corresponding to the winding tightening portion of the gas cylinder. In the lid cam lock mechanism, the elastic member causes the cam lever to exert an elastic force that imparts engagement behavior between the cam receiving portion and the cam portion of the lid.

  In the gas supply device, the lid is locked by the lid cam lock mechanism, and all the specified number of gas cylinders are correctly coupled to the gas supply unit in the cylinder loading space, and the first cam portion is engaged with the cam receiving portion of the lid cam lock mechanism. The first lock state held in this state and the second lock state in which the gas cylinder is not loaded in the cylinder loading space and the second cam portion is engaged with the cam receiving portion and held. In the gas supply device, the lid body is held in different positions of rotation with respect to the housing in the first locked state and the second locked state, so that the loading state of all the gas cylinders in the cylinder loading space is visually confirmed. Can be identified.

  The gas supply device includes a mounting substrate, an intermediate cam lever, and an intermediate elastic member for detecting the loading state of the gas cylinder loaded at an intermediate position when three or more gas cylinders are loaded in the cylinder loading space. An intermediate gas cylinder detection mechanism may be provided. In the gas supply device, a cam rod is provided on the inner surface of the lid. In the intermediate gas cylinder detection mechanism, the mounting substrate is erected on the bottom plate of the housing along the gas cylinder loaded at the intermediate position. In the intermediate gas cylinder detection mechanism, an intermediate cam lever is movably combined along the mounting substrate, and an engagement portion is formed at an end portion on the front plate side of the housing corresponding to the tightening portion of the gas cylinder. In the intermediate gas cylinder detection mechanism, the intermediate cam lever is positioned at the end portion of the back plate portion of the housing corresponding to the cam rod of the cover body to form a cover body cam locking portion. In the intermediate gas cylinder detection mechanism, the intermediate elastic member urges the intermediate cam lever toward the back plate portion side of the housing, thereby causing a separation force from the gas supply unit of the gas cylinder loaded at the intermediate position via the engaging portion. Apply elastic force.

  In the gas supply device, the intermediate gas cylinder detection mechanism releases the locking state of the cam rod by the lid locking cam portion in the first locked state with respect to the lid body provided with the cam rod, and intermediately enters the cylinder loading space portion. In the second locked state in which the gas cylinder at the position is not loaded, the cam rod is locked by the lid locking cam portion. In the gas supply device, the loading state of the gas cylinder loaded at the intermediate position is detected by the intermediate gas cylinder detection mechanism. In the gas supply device, an intermediate gas cylinder detection mechanism can more reliably detect a state in which all the specified number of gas cylinders are correctly coupled to and loaded in the gas supply unit.

  In the gas supply device, a plurality of cylinder fitting guide portions are formed on the bottom plate that constitutes the cylinder loading space portion of the casing to fit the outer peripheral portions of the loaded gas cylinders to perform the guide action of the moving operation. Also good. In the gas supply device, the gas cylinder smoothly moves in the cylinder fitting guide portion toward the gas supply unit as the lid is opened and closed. In the gas supply device, the height of the housing is reduced by loading the cylinder loading space with a part of the outer peripheral portion of the gas cylinder protruding outward through the cylinder fitting guide. .

  According to the gas supply device of the present invention configured as described above, the attachment / detachment of the specified number of gas cylinders loaded in the cylinder loading space configured in the housing to the gas supply unit is performed by opening and closing the lid. A first lock state in which all the gas cylinders are properly coupled to the gas supply unit in the cylinder loading space by the lid cam lock mechanism, and a specified number of gas cylinders in the cylinder loading space. Is configured to be held in the second lock state in which all or a part of the battery is not loaded. Therefore, according to the gas supply device of the present invention, it is possible to maintain the high output pressure characteristic of the fuel gas over a long period of time by using a plurality of gas cylinders without the trouble of frequent replacement. .

  According to the gas supply device of the present invention, it is possible to identify that the specified number of gas cylinders loaded in the cylinder loading space portion are coupled to the gas supply unit according to the position of the lid in the first locked state, and The fuel gas is supplied to the combustion equipment. According to the gas supply device of the present invention, it is confirmed that the gas cylinder remains in the cylinder loading space part by the position of the lid in the first locked state after use. Further, according to the gas supply device of the present invention, the case where the prescribed number of gas cylinders are not loaded in the cylinder loading space portion depending on the position of the lid in the first locked state due to the position of the lid in the second locked state or prescribed. Make sure that the number of gas cylinders is not loaded correctly. According to the gas supply device according to the present invention, it is possible to reliably identify the state of the gas cylinder in the cylinder loading space by the state of the lid which is a relatively large member, and it is possible to prevent danger due to gas leakage or forgetting to take out the gas cylinder. Certainly planned.

It is a top view of the gas supply apparatus shown as embodiment of this invention. It is the sectional side view which removed the side plate of the housing | casing in the state which loaded the gas cylinder about the gas supply apparatus, and showed the structure of the cover body cam lock mechanism. It is the sectional side view which showed the structure of the intermediate gas cylinder detection mechanism in the state which loaded the gas cylinder about the gas supply apparatus. It is a sectional side view of the cover body with which the gas supply apparatus is equipped. It is a principal part top view explaining a cover body cam lock mechanism. It is a side view of the cam lever which comprises the cover body cam lock mechanism. It is a principal part side view explaining an intermediate gas cylinder detection mechanism. It is a principal part top view explaining the intermediate gas cylinder detection mechanism. It is a side view which shows loading operation of a gas cylinder. It is principal part sectional drawing which shows the 2nd locked state of the cover body by the cover body cam lock mechanism in the state which is not loaded with the gas cylinder. It is a principal part sectional side view explaining an intermediate gas cylinder detection mechanism in the 2nd locked state of the lid. It is a partially cutaway principal part front view of a gas cylinder.

  Hereinafter, the gas supply apparatus 1 shown as embodiment of this invention is demonstrated in detail with reference to drawings. In the following description, terms such as front / rear, left / right, and upper / lower are used with reference to FIG. 1 unless otherwise specified. In the same figure, the left side is front (front), the right side is rear (rear), and the upper side. The side is the right (right side), the bottom is (left side), the back side of the drawing is bottom (bottom surface), and the front side of the drawing is top (ceiling surface).

  In the gas supply apparatus 1, three gas cylinders 100 </ b> A to 100 </ b> C having a capacity of 250 g (hereinafter collectively referred to as gas cylinders 100 unless otherwise described) provided as standard specifications are provided inside the housing 2. The cylinder is loaded into the cylinder loading space 3 configured, and various combustion devices (not shown) are connected to supply fuel gas in a high pressure state for a long time. As will be described in detail later, the gas supply device 1 enables gas supply to the combustion equipment only in a state where the three gas cylinders 100 are correctly loaded in the cylinder loading space 3. The gas supply device 1 can clearly identify the state in which the three gas cylinders 100 are correctly loaded and loaded.

  The gas supply apparatus 1 is also required to use three gas cylinders 100 loaded in the cylinder loading space 3 even in a usage mode in which the capacity of the three gas cylinders 100 is not required. An empty gas cylinder 100 (including a gas cylinder in which the remaining amount of fuel gas is reduced) is loaded and used together with the gas cylinder 100. Note that the gas cylinder 100 is generally subjected to a perforation process after use, and the fuel gas remaining inside is discharged. When the gas supply apparatus 1 uses an empty gas cylinder 100 that has been subjected to perforation processing, the fuel gas supplied from another gas cylinder 100 is discharged to the outside through the empty gas cylinder 100 as will be described later. End up. Therefore, the gas supply apparatus 1 is required to use an empty gas cylinder 100 that has not been subjected to perforation processing.

  As shown in FIGS. 1 to 3, the gas supply device 1 includes a casing 2 having a bottom plate 4, a front plate 5, and a pair of left and right side plates 6 </ b> A and 6 </ b> B (hereinafter, unless otherwise described separately) And a front beam plate 7 and a rear plate 8 having a height smaller than that of the front plate 5 to form a rectangular box with the ceiling portion opened. The gas supply device 1 is a cylinder loading in which three gas cylinders 100 are loaded in parallel with each other with the stems 112 positioned on the front side with the opened ceiling portion of the housing 2 as a cylinder loading opening. The space portion 3 is configured. The gas supply device 1 is rotatably supported by a support shaft 10 that is positioned and supported on the back surface side of the side plate 6, and has a height substantially equal to that of the front plate 5 of the cylinder loading space 3 in cooperation with the back plate 8. A lid body 9 is provided which constitutes the back surface portion and opens and closes a part of the cylinder loading space portion 3.

  As shown in FIGS. 1 to 3, the gas supply device 1 will be described in detail in a front space portion adjacent to the cylinder loading space portion 3 surrounded by the bottom plate 4, the front plate 5, the side plate 6, and the front beam plate 7. A gas supply unit 11 is assembled. In the gas supply device 1, a pair of left and right lid cam lock mechanisms 12 </ b> A and 12 </ b> B (hereinafter, collectively referred to as a lid cam lock mechanism 12 unless otherwise described) are provided on the inner surface of the side plate 6. Assembled. The gas supply device 1 is provided with a lock pin 41, which will be described in detail later, on the inner surface of the side plate 6 in a position corresponding to the lid cam lock mechanism 12A. The gas supply device 1 includes a bottom plate 4 positioned between a first loading area 3A for loading the first gas cylinder 100A in the cylinder loading space 3 and a second loading area 3B for loading the second gas cylinder 100B. The intermediate gas cylinder detection mechanism 13 is assembled to the above.

  The gas supply device 1 is provided with installation legs 4 </ b> A to 4 </ b> D at the four corners of the bottom plate 4, and is installed and used in a horizontal state. The gas supply device 1 is not limited in the posture of use, and can be installed and used, for example, vertically. However, the fuel gas can be efficiently and stably supplied from the specifications of the gas cylinder 100. Therefore, it is desirable to use the unit in a horizontal state.

  The cylinder loading space section 3 is divided into a first loading area section 3A to a third loading area section 3C that are long in the front-rear direction in which three gas cylinders 100 are loaded one by one. As shown by a chain line in FIG. 1, the bottom plate 4 has a first cylinder fitting guide section 14A to a third cylinder fitting guide section 14C (hereinafter individually referred to as the first loading area section 3A to the third loading area section 3C). Except for the case where it is described, the cylinder fitting guide portion 14 is collectively referred to.). The cylinder fitting guide portion 14 is an opening in the front-rear direction that is longer than the can main body 101 of the gas cylinder 100. When the gas cylinder 100 is loaded into the cylinder loading space 3, the outer peripheral portion of the can main body 101 is fitted. Project part outward.

  The cylinder fitting guide part 14 is fitted to the outer peripheral part of the can body 101 of the gas cylinder 100 loaded in the cylinder loading space part 3, so that these gas cylinders 100 are fitted to the first loading area part 3 </ b> A to the third loading area part 3 </ b> C. Position within. As will be described later, the cylinder fitting guide portion 14 is configured so that the gas cylinder 100 slides back and forth in the cylinder loading space 3 by opening and closing the lid body 9, but at this time, the gas cylinder 100 is smoothly moved without shaking in the left-right direction. It has a guide action to slide. The cylinder fitting guide portion 14 reduces the height of the housing 2 by allowing the gas cylinder 100 loaded in the cylinder loading space portion 3 to penetrate the outer peripheral portion of the can body 101 from the bottom plate 4 and protrude outward. Thus, the size can be reduced.

  In addition, although the cylinder fitting guide part 14 was comprised by the opening part formed in the baseplate 4 as mentioned above, of course, it is not limited to this structure. The cylinder fitting guide portion 14 may be constituted by a concave portion having an arcuate cross section corresponding to the curvature of the can body 101 by, for example, drawing. The cylinder fitting guide portion 14 has such a concave shape so that the mechanical rigidity of the bottom plate 4 can be increased compared to the configuration of the opening. Moreover, although the cylinder fitting guide part 14 cannot reduce the size of the housing 2, the cylinder fitting guide part 14 may be configured by a pair of convex parts that hold both sides of the can body 101.

  The gas supply unit 11 is installed along the inner surface of the front plate 5 and is mounted with a gas cylinder 100 loaded in the cylinder loading space 3 and connected to various combustion devices (not shown). The gas supply unit 11 includes a unit main body 15, an opening / closing valve mechanism 16, a main plug plug portion 17, and a pressure regulator (governor) 18. As will be described later, the gas supply unit 11 has a structure in which the unit main body 15 attaches and detaches three gas cylinders 100 and supplies the fuel gas supplied from these gas cylinders 100 to the combustion equipment through one gas flow path. However, it has the same basic structure as a cassette stove that uses a single gas cylinder.

  The unit main body 15 is a member having a size facing the cylinder loading space portion 3 over almost the entire region, and is fixed to the housing 2 via an attachment portion formed on the outer peripheral portion (not shown). The unit main body 15 includes a first holding valve mechanism 19 </ b> A to a third holding valve mechanism 19 </ b> C having cylinder fitting openings that open on the cylinder loading space 3 side so as to face the first loading area 3 </ b> A to the third loading area 3 </ b> C. (Hereinafter, the holding valve mechanism 19 is collectively referred to unless otherwise described). Although not shown, the unit main body 15 has a gas flow path formed therein and in communication with the holding valve mechanism 19.

  The holding valve mechanism 19 includes, as is well known, a cylinder fitting port into which the stem 112 of the gas cylinder 100 is fitted, a check valve that is provided with a closing behavior of the cylinder fitting port and incorporated therein, and the stem 112. And a valve seat structure for holding the valve member 111 of the gas cylinder 100 in an open state. The holding valve mechanism 19 opens the check valve and pushes the valve member 111 when the stem 112 is pushed into the cylinder fitting port so that the fuel gas flows from the gas cylinder 100 into the internal gas flow path. To do.

  Although not described in detail, the opening / closing valve mechanism 16 is provided at the center of the unit body 15 and opens / closes between the gas flow path and the main plug plug portion 17. The on-off valve mechanism 16 rotates the operation knob 20 provided to protrude from the front plate 5 so that the built-in valve member opens and closes the gas flow path. The open / close valve mechanism 16 opens the gas flow path so that the fuel gas flows into the main plug plug portion 17 in a state where the operation knob 20 is set to the open position. The opening / closing valve mechanism 16 has a structure in which, for example, a cam member is provided on the support shaft of the operation knob 20, and the valve member is pushed in via the cam member by the rotation operation of the operation knob 20 to open the gas flow path. is there. The open / close valve mechanism 16 is not limited to such a structure, and may be various open / close valve mechanisms provided in the combustion apparatus.

  The plug portion 17 for the main plug has a cylindrical member in which a gas flow passage communicating with the gas flow passage of the gas supply unit 11 is formed, and a gas flow passage closing behavior is provided by a spring built in the cylindrical member. Having a non-return valve. A connector provided at the tip of a connection pipe (not shown) connected to the combustion device is fitted into the main plug portion 17 so that the check valve is opened, and fuel gas is supplied from the gas flow path to the combustion device. To be supplied.

  The pressure regulator 18 is provided between the gas supply unit 11 and the main plug portion 17, and adjusts the fuel gas flowing in from the gas flow path to a predetermined pressure by opening the on-off valve mechanism 16 to adjust the main plug portion. 17 is supplied. The pressure regulator 18 includes, for example, a lever member, a receiving pressure plate, an adjustment spring, and the like incorporated in the container. The pressure regulator 18 transforms the primary fuel gas flowing in from the gas flow path to a predetermined pressure, and plugs the secondary side main plug. Supply to unit 17.

  In the gas supply device 1, first beam alignment members 21 </ b> A to 21 </ b> C (hereinafter collectively referred to as alignment members 21 except when individually described) are provided on the front beam plate 7. The alignment member 21 is arranged along the front space portion of the front beam plate 7 to which the above-described gas supply unit 11 is assembled and the side edge on the back side dividing the cylinder loading space portion 3. Provided relative to the region 3C. The alignment member 21 positions the gas cylinder 100 loaded in the cylinder loading space 3 and the holding valve mechanism 19 facing the gas supply unit 11.

  The gas supply device 1 is loaded with a gas cylinder 100 in the cylinder loading space 3, and is operated to rotate the lid 9 as will be described later to slide the gas cylinder 100 to the front side to be fitted to the gas supply unit 11. Let In the gas supply device 1, the positioning notches 106 </ b> A formed by all the gas cylinders 100 loaded in the cylinder loading space portion 3 relative to the siphon tube 115 are fitted into the alignment member 21. In the gas supply device 1, the gas cylinder 100 is correctly coupled to the gas supply unit 11 so that the fuel gas is efficiently supplied. In the gas supply apparatus 1, the gas cylinder 100 is slid in the front-rear direction as indicated by arrows A1 and A2 in FIG. 5 by the lid body 9 and the lid cam lock mechanism 12 as will be described later.

  As shown in FIGS. 1 and 4, the gas supply device 1 includes a cover plate 22 and a pair of left and right side plate portions 23A and 23B (hereinafter referred to as a side plate portion 23 unless otherwise described). And a back plate portion 24. The lid body 9 is provided with a handle 25 on the front surface side of the cover plate portion 22 along the front edge located at the center in the length direction. The lid body 9 is provided with a cam rod 26 on the inner surface side of the cover plate portion 22 so as to face an intermediate gas cylinder detection mechanism 13 described later. In the lid body 9, cam portions 27 </ b> A and 27 </ b> B (hereinafter collectively referred to as a cam portion 27 unless otherwise described) are formed on the side plate portion 23 at the front end. The lid 9 is provided with a cylinder operating member 28 on the back plate 24.

  As shown in FIG. 1, the lid 9 allows the cover plate 22 to visually recognize the presence of the gas cylinder 100 loaded inside with the cylinder loading space 3 facing outwardly between the front beam plate 7. At the same time, it is formed in a lateral width that constitutes an opening portion that ensures air circulation. As shown in FIG. 2, the lid 9 has the back plate 24 bent at a right angle along the back side end of the cover plate 22, and in cooperation with the back plate 8 of the housing 2. Is formed at a height that constitutes the back surface portion of approximately the same height.

  The lid body 9 is formed by bending the side plate portion 23 at a right angle so that the arm portions formed on the left and right lower end portions of the back plate 8 face each other in parallel. The lid body 9 is rotatably combined with the housing 2 by allowing the shaft 10 formed in the side plate portion 23 to pass through the support shaft 10 supported between the side plates 6 of the housing 2. The lid body 9 widely opens the cylinder loading space 3 by gripping the handle 25 and being pivoted in the clockwise direction in FIG. The lid 9 closes the cylinder loading space 3 by holding the handle 25 and rotating it counterclockwise in FIG. 2 with all the three gas cylinders 100 loaded in the cylinder loading space 3. To do.

  The lid body 9 is provided on the back plate portion 24 so that the cylinder operating member 28 is opposed to all the gas cylinders 100 loaded in the cylinder loading space portion 3 so as to cross the central portion of each bottom plate 102. The cylinder actuating member 28 protrudes into the cylinder loading space 3 and moves all the gas cylinders 100 to the gas supply unit 11 side by rotating the lid 9 in a direction to close the cylinder loading space 3. Slide it. The cylinder actuating member 28 slides all the gas cylinders 100 with a sliding amount in which the above-described stem, 112 and the gas supply unit 11 are coupled.

  As shown in FIGS. 2 and 3, the lid 9 has a front portion of the side plate portion 23 that extends along the inner surface of the side plate 6 of the housing 2, and protrudes downward in an arm shape. A cam portion 27 is formed. The cam portion 27 is formed to face the lid cam lock mechanism 12 described above, and is actuated by gas cylinders 100A and 100C on both sides that slide in the front-rear direction by opening and closing the lid body 9 as will be described later. 12 is engaged and released. The cam portion 27 defines the rotational position of the lid 9 with respect to the housing 2 by engaging and releasing the lid cam lock mechanism 12 as will be described later.

  A first cam portion 29 and a second cam portion 30 are formed in the cam portion 27 so as to be spaced apart from each other in the height direction at the front side edge. As shown in FIG. 4, the first cam portion 29 is formed of a slightly shallow arc-shaped cam recess formed on the upper side of the cam portion 27. The second cam portion 30 is formed of a slightly deep arc-shaped cam recess that is located below the first cam portion 29 and formed from the front side edge to the lower end edge of the cam portion 27. In the cam portion 27, the first cam portion 29 and the second cam portion 30 are selectively engaged with the lid cam lock mechanism 12 at the rotational position of the lid body 9 as will be described later, and the lid body 9 in FIG. Specifies the counterclockwise rotation position.

  The cam portion 27 selectively engages the lid cam lock mechanism 12 when the first cam portion 29 and the second cam portion 30 are loaded in the gas cylinder 100 in the cylinder loading space 3 to lock the lid 9 to the first lock. Hold in the state or the second locked state. The cam portion 27 is engaged with the lid cam lock mechanism 12 in the first lock state in which the lid body 9 is held on the casing 2 so as to constitute substantially the same surface as the upper edge of the side plate 6. Match. In the cam portion 27, the second cam portion 30 engages with the lid cam lock mechanism 12 in the second locked state in which the lid 9 is held slightly protruding from the upper edge of the side plate 6 with respect to the housing 2.

  As described above, in the gas supply device 1, the gas supply unit 11 holds the coupled state of the gas cylinder 100 by the holding valve mechanism 19. The gas supply device 1 releases the holding state of the gas supply unit 11 by the holding valve mechanism 19 when a large vibration or impact is applied, and the gas cylinder 100 moves and the lid body cam lock mechanism 12 locks the lid body 9. The state may be released. In the gas supply device 1, a lock pin 41 is provided on the side plate 6 of the housing 2, and the lid body cam lock mechanism 12 regulates the operation of the lid body 9 held in the first lock state or the second lock state to lock the gas supply device 1. Is more securely held.

  As shown in FIG. 2, the lock pin 41 protrudes from the inner surface of the side plate 6. The lock pin 41 is relatively engaged with the rear side edge of the cam portion 27 in a state where the lid body 9 is held in the first lock state or the second lock state by the lid cam lock mechanism 12 described later. When the lid body 9 is turned, the cam portion 27 is relatively engaged with the lock pin 41 so that the rear side edge of the lock pin 41 turns around the outer peripheral portion. The lock pin 41 holds the rear edge of the lid body 9 and regulates the pivoting operation in cooperation with the lid body cam lock mechanism 12 even when an impact or the like is applied to the lid body 9.

  The gas supply device 1 includes a pair of left and right lid cam lock mechanisms 12 provided along the inner surface of the side plate 6 of the housing 2. The lid cam lock mechanism 12 is operated by the first gas cylinder 100A and the third gas cylinder 100C loaded in the first loading area 3A and the third loading area 3C, respectively, thereby restricting the rotation of the lid 9. At the same time, the lid 9 is held in the first locked state and the second locked state. In the state where all the gas cylinders 100 loaded in the cylinder loading space 3 are correctly coupled to the gas supply unit 11, the lid cam lock mechanism 12 cooperates with the gas cylinder 100 in cooperation with the intermediate gas cylinder detection mechanism 13 described later. The coupling state of the gas supply unit 11 is maintained.

  The lid cam lock mechanism 12 is engaged with the first cam portion 29 as described above in a state where all the gas cylinders 100 loaded in the cylinder loading space 3 are correctly coupled to the gas supply unit 11. The body 9 is held in a first locked state in which the cover plate portion 22 forms substantially the same plane as the front beam plate 7. Further, the lid cam lock mechanism 12 maintains the coupled state of the gas cylinder 100 and the gas supply unit 11 when the lid 9 is in the first locked state. The lid cam lock mechanism 12 releases the engagement state with the first cam portion 29 and the gas cylinder 100 and the gas supply when the lid body 9 that opens the cylinder loading space portion 3 is rotated after use. The combined state of the unit 11 is released.

  As described above, the lid cam lock mechanism 12 is connected to the second cam portion 30 in a state where any one gas cylinder 100 loaded in the cylinder loading space 3 is not correctly coupled to the gas supply unit 11. The cover 9 is engaged to hold the cover 9 in the second locked state in which the cover plate portion 22 is lifted with respect to the front beam plate 7. The lid cam lock mechanism 12 similarly holds the lid 9 in the second loading area 3A or the third loading area 3C even when the first gas cylinder 100A or the third gas cylinder 100C is not loaded. Keep locked.

  As shown in FIGS. 5 and 6, the lid cam lock mechanism 12 includes a cam lever 31, cam pins 32 (cam pins 32 </ b> A and 32 </ b> B), a coil spring 33, and a support shaft portion 34. The cam lever 31 is made of a metal plate that is long in the front-rear direction, and a cylinder that is relatively engaged with the winding portion 109 of the gas cylinder 100 by bending a substantially central portion in the length direction into a crank shape to form a stepped portion. The engaging portion 31A is configured. The cam lever 31 is supported by a support shaft portion 34 provided on the side plate 6 of the housing 2 and a support shaft 35 provided on the side surface of the gas supply unit 11 and is slidably assembled along the inner surface of the side plate 6.

  The cam lever 31 is formed with a guide hole 31B, which is a long hole in the front-rear direction through which the support shaft 35 provided on the side surface of the gas supply unit 11 passes, and a spring engagement convex portion 31C protruding from the front tip. The The cam lever 31 is wide at the rear side, and a support shaft portion 34 is provided at the center in the height direction, and cam pins 32A and 32B are provided with the support shaft portion 34 interposed therebetween. The cam pin 32 is a member that constitutes a cam receiving portion that engages with the cam portion of the lid body 9 as will be described later.

  The cam lever 31 is provided with the cam pin 32 on the side surface. However, for example, the cam lever 31 may constitute a cam receiving portion having an equivalent function depending on a bent portion. The cam lever 31 is made of the same member with the cam pin 32 attached at different positions, and is provided with cam pins 32A and 32B at symmetrical positions by being reversed and used as a common part. However, each cam lever 31 is configured separately as an independent member. In such a case, one cam pin may be provided at a position corresponding to each.

  The cam lever 31 penetrates the guide shaft 31 provided on the gas supply unit 11 side through the guide hole 31 </ b> B and the support shaft portion 34 penetrates the guide long hole 36 in the front-rear direction formed in the side plate 6 of the housing 2. The side plate 6 is assembled. The cam lever 31 is assembled along the side plate 6 so as to be slidable in the front-rear direction as shown by arrows B1 and B2 in the length range of the guide hole 31B and the guide long hole 36. The support shaft portion 34 and the support shaft 35 are formed with, for example, outer peripheral screws, and are prevented from falling off by screwing a decorative nut in a state where the support shaft portion 34 and the support shaft 35 are penetrated through the opposing guide holes 31B and the guide long holes 36.

  As shown in FIGS. 1, 2, and 5, a coil spring 33 is attached to the cam lever 31 on the outer peripheral portion of a spring engaging convex portion 31 </ b> C whose tip is opposed to the inner surface of the front plate 5 of the housing 2. . The coil spring 33 is attached in a slightly compressed state between the spring engagement convex portion 31C and the front plate 5, thereby biasing the cam lever 31 to the back side. The cam lever 31 is moved along the side plate 6 of the housing 2 in a state where the support shaft portion 34 and the support shaft 35 abut against the rear edge of each of the guide hole 31B and the guide long hole 36 by the elastic force of the coil spring 33. Assembled. That is, the cam lever 31 is given a habit of returning to the back side by the elastic force of the coil spring 33.

  In the lid cam lock mechanism 12, the cam lever 31 faces the front plate 6 so as to face the front side of the tightening portion 109 of the gas cylinder 100 loaded in the cylinder loading space 3 with the cylinder engaging portion 31 </ b> A facing inward. Assembled. In the cover cam lock mechanism 12, the cam lever 31 is pushed to the back side by the elastic force of the coil spring 33 in a state where the gas cylinder 100 is not loaded in the cylinder loading space 3. In the lid cam lock mechanism 12, in this state, the cam lever 31 is assembled to the side plate 6 so that the upper end edge on the back surface side thereof extends into the rotation locus of the lid body 9.

  In the lid cam lock mechanism 12, the lower end portion of the cam portion 27 comes into contact with the upper end edge on the back side of the cam lever 31 when the lid body 9 is rotated to close the cylinder loading space portion 3. In the lid cam lock mechanism 12, the cam lever 31 is slid to the front side against the elastic force of the coil spring 33 by the cam portion 27, so that the cam pin 32 of the cam lever 31 is formed on the cam portion 27 of the lid 9. The second cam portion 30 on the leading end side is relatively engaged.

  In the lid cam lock mechanism 12, the cam pin 32 engages with the second cam portion 30 having a large depth as described above, so that further rotation operation of the lid body 9 is stopped at that time. In the lid cam lock mechanism 12, the engagement state of the cam pin 32 and the second cam portion 30 is held by the elastic force of the coil spring 33 even when the rotational operation force of the lid body 9 is released. In the lid body cam lock mechanism 12, the lid body 9 is thereby held in the second locked state in which the lid body 9 is floated with respect to the housing 2.

  The lid cam lock mechanism 12 prevents shaking movement of the lid body 9 held in the second locked state during carrying. The lid cam lock mechanism 12 holds the lid 9 in the second locked state, thereby making it possible to identify a state in which the gas cylinder 100 is not loaded in the cylinder loading space 3. In the lid cam lock mechanism 12, the handle 25 is grasped and the lid body 9 is pulled up to release the engagement state between the cam pin 32 and the second cam portion 30 against the elastic force of the coil spring 33. Then, the lid body 9 is opened.

  In the lid cam lock mechanism 12, when a closing operation of the lid body 9 to be described later is performed in a state where the cam lever 31 is loaded with the gas cylinder 100 in the cylinder loading space portion 3, the cam lever 31 moves to the front side via the cylinder operating member 28. The gas cylinder 100 that slides is slid to the front side along the side plate 6. In the lid cam lock mechanism 12, the cam lever 31 slides to the front side against the elastic force of the coil spring 33 via the gas cylinder 100 that slides when the winding portion 109 abuts against the cylinder engaging portion 31A. To do.

  In the lid cam lock mechanism 12, the cam pin 32 is relatively engaged with the first cam portion 29 on the upper side formed in the cam portion 27 of the lid 9 with the lid 9 closing the cylinder loading space 3. The lid cam lock mechanism 12 holds the engagement state of the cam pin 32 and the first cam portion 29 by the elastic force of the coil spring 33, and holds the lid 9 in the first locked state. In the cover cam lock mechanism 12, the cam lever 31 holds the first gas cylinder 100 </ b> A and the third gas cylinder 100 </ b> C and the gas supply unit 11.

  In the gas supply apparatus 1, as described above, the pair of lid cam lock mechanisms 12A and 12B are provided along the side plates 6A and 6B of the housing 2. In the gas supply device 1, the lid cam lock mechanism 12A provided on the side plate 6A side is operated by the first gas cylinder 100A loaded in the first loading region 3A. In the gas supply apparatus 1, the lid cam lock mechanism 12B provided on the side plate 6B side is operated by the third gas cylinder 100C loaded in the third loading region 3C. In the gas supply device 1, when the first gas cylinder 100A or the third gas cylinder 100C is not loaded in the first loading area 3A or the third loading area 3C, the gas supply unit 11 of the gas cylinder 100 by the lid 9 is used. The combined operation with is restricted.

  As described above, the gas supply device 1 is used by loading the three gas cylinders 100 into the cylinder loading space 3. As described above, the gas supply device 1 detects the loading state of the first gas cylinder 100A and the third gas cylinder 100C in the first loading area 3A and the third loading area 3C by the lid cam lock mechanism 12, and detects the intermediate gas cylinder. The mechanism 13 detects the loading state of the second gas cylinder 100B in the second loading region 3B. The intermediate gas cylinder detection mechanism 13 is provided between the first loading area 3A and the second loading area 3B of the cylinder loading space 3 as described above.

  As shown in FIG. 2, the gas supply device 1 is configured so that the cam body 27 is relatively engaged with the first cam portion 29 at the front side edge and the rear side edge when the lid body 9 is in the first locked state. It is sandwiched between the engaging lock pins 41, and the sliding operation and the rotating operation in the front-rear direction when an impact or the like is applied are reliably restricted. Further, the gas supply device 1 has a lock in which the cam portion 27 is relatively engaged at the rear side edge with the cam pin 32 that is relatively engaged with the second cam portion 30 at the front side edge even when the lid 9 is in the second locked state. A state of being sandwiched between the pins 41 and the sliding and rotating operations in the front-rear direction when an impact or the like is applied are reliably restricted.

  As shown in FIGS. 3, 6, and 7, the intermediate gas cylinder detection mechanism 13 includes a mounting substrate 37, an intermediate cam lever 38, and an intermediate coil spring 39. The mounting substrate 37 includes a mounting plate portion 37A and a slide guide standing wall portion 37B orthogonal to the mounting plate portion 37A, and the mounting plate portion 37A is a first loading area in the cylinder loading space portion 3 as shown in FIG. It is fixed on the bottom plate 4 of the housing 2 in the front-rear direction so as to be divided into a part 3A and a second loading area part 3B.

  As shown by a broken line in FIG. 7, a pair of guide long holes 37B1 and 37B2 having a longitudinal axis in the front-rear direction and spaced apart in the front-rear direction and the vertical direction are formed in the mounting substrate 37. The slide guide standing wall portion 37B is formed with a spring latching portion 37B3 for latching one end side of the intermediate coil spring 39 on the rear end side. The slide guide standing wall portion 37B is formed with a notch groove 37B4 which is located between one guide long hole 37B1 and the spring latching portion 37B3 and accommodates the intermediate coil spring 39 to save space. . In the slide guide standing wall portion 37B, a stepped-down portion 37B5 is formed at the rear end portion of the upper edge.

  The intermediate cam lever 38 is a plate-like member having a substantially wedge-shaped outer shape with a wide rear side and an upper edge that is gradually inclined toward the front side. The intermediate cam lever 38 is formed in a wedge shape as described above, so that the front portion thereof does not hit the front beam plate 7 of the housing 2 during a slide operation described later. The intermediate cam lever 38 slides the mounting substrate 37 by allowing a pair of guide pins 40A, 40B provided on the side surfaces to pass through the opposing guide long holes 37B1, 37B2 via a retaining structure that omits a detailed description of the structure. It is assembled in a state of being superimposed on the guide standing wall portion 37B. The intermediate cam lever 38 is slidably assembled to the mounting substrate 37 with the guide pins 40A and 40B being restricted by the length range of the guide long holes 37B1 and 37B2.

  As shown in FIG. 7, the intermediate cam lever 38 protrudes from the mounting substrate 37 with the wide portion on the back side protruding from the mounting substrate 37 with the upper edge thereof as a lid locking cam portion 38 </ b> B in a state assembled to the mounting substrate 37. The intermediate cam lever 38 is integrally formed with an intermediate cylinder engaging portion 38 </ b> A by bending a narrow front end portion perpendicular to the side.

  As shown in FIG. 1, the intermediate cam lever 38 is assembled to the mounting substrate 37 so that the intermediate cylinder engaging portion 38A protrudes into the second loading region portion 3B. As will be described later, the intermediate cylinder engaging portion 38A is positioned opposite to the front side of the tightening portion 109 of the second gas cylinder 100B loaded in the second loading region 3B. In the state where the gas cylinder 100 is not loaded in the cylinder loading space 3, the intermediate cam lever 38 extends in the rotation locus of the cam rod 26 provided on the lid 9 with the lid locking cam 38 </ b> B.

  The intermediate cam lever 38 is formed with a notch 38C at a lower portion of the wide portion facing the notch groove 37B4 of the mounting substrate 37. The intermediate coil spring 39 is hooked at one end side to the back side portion of the cutout portion 38C of the intermediate cam lever 38 and the other end side is hooked to the spring latching portion 37B3 and pulled into the cutout groove 37B4. It is stored in. The intermediate coil spring 39 applies an elastic force that biases the intermediate cam lever 38 toward the back side, and the intermediate cam lever 38 is slidably assembled to the side surface of the mounting substrate 37.

  The intermediate gas cylinder detection mechanism 13 is operated via the second gas cylinder 100B that slides in the front-rear direction as indicated by arrows C1 and C2 in the second loading region 3B. In the intermediate gas cylinder detection mechanism 13, the cylinder loading space 3 is closed by rotating the lid 9 in a state where the second gas cylinder 100B is not properly loaded in the second loading area 3B of the cylinder loading space 3. If an attempt is made, the cam rod 26 abuts against the lid locking cam portion 38B of the intermediate cam lever 38, thereby disabling the pivoting operation of the lid 9 to the above-described first locked state. The intermediate gas cylinder detection mechanism 13 regulates the rotation operation of the lid body 9 but does not have a function of holding the lid body 9 of the lid cam lock mechanism 12 described above at a predetermined rotation position.

  In the intermediate gas cylinder detection mechanism 13, the second gas cylinder 100B loaded in the second loading area 3B is slid to the front side indicated by the arrow C1 in FIG. When operated, the intermediate cam lever 38 is operated by the second gas cylinder 100B. In the intermediate gas cylinder detecting mechanism 13, the intermediate cam lever 38 is pressed by the tightening portion 109 of the second gas cylinder 100B that slides the intermediate cylinder engaging portion 38A protruding into the second loading region portion 3B. As shown by the arrow D 1, the slider slides toward the front side against the elastic force of the intermediate coil spring 39.

  In the intermediate gas cylinder detection mechanism 13, the sliding operation of the intermediate cam lever 38 releases the locked state of the cam rod 26 by the cover body locking cam portion 38 </ b> B, thereby enabling the lid body 9 to be rotated. In the intermediate gas cylinder detection mechanism 13, when the second gas cylinder 100 </ b> B is removed from the second loading area 3 </ b> B of the cylinder loading space 3 that is opened by performing the return rotation operation of the lid 9 after use, The cam lever 38 returns to the initial position as indicated by the arrow D2 in FIG. 8 by the elastic force of the intermediate coil spring 39.

  In the intermediate gas cylinder detection mechanism 13, the first gas cylinder 100A and the third gas cylinder 100C are loaded in the first loading area 3A and the third loading area 3C, but the second gas cylinder 100B is loaded in the second loading area 3B. Is not loaded, the coupling operation of the gas cylinder 100 with the gas supply unit 11 by the lid 9 is restricted. In the intermediate gas cylinder detection mechanism 13, since the above-described sliding operation of the intermediate cam lever 38 by the second gas cylinder 100B to be loaded in the second loading area 3B is not performed, the lid locking cam portion 38B is not covered by the lid. Nine cam rods 26 remain extending in the trajectory.

  In the intermediate gas cylinder detection mechanism 13, the intermediate cam lever 38 restricts the rotation operation of the lid 9 on which the rotation operation is performed when the cam rod 26 abuts against the lid locking cam portion 38B. The intermediate gas cylinder detection mechanism 13 detects an unloaded state of the second gas cylinder 100B in the second loading region 3B, and regulates the coupling operation of the gas cylinder 100 with the gas supply unit 11 by the lid 9.

  The intermediate gas cylinder detection mechanism 13 is provided between the first loading area 3A and the second loading area 3B as described above, but is provided between the second loading area 3B and the third loading area 3C. May be. The intermediate gas cylinder detection mechanism 13 uses an intermediate cam lever having an intermediate cylinder engaging portion that replaces the mounting substrate 37 and the intermediate cam lever 38 and protrudes to the second loading region portion 3B. The intermediate gas cylinder detection mechanism 13 is provided between each intermediate loading region portion when three or more gas cylinders 100 are used.

  Regarding the gas supply device 1 configured as described above, the state of the lid body 9 in the mode of use will be described below. In the gas supply device 1, by grasping the handle 25 and rotating the lid body 9, as shown in FIG. 9, the lid body 9 is largely opened to open the cylinder loading space portion 3, and three gas cylinders are opened. 100 is loaded. In the gas supply device 1, the stem 112 is directed toward the front surface side of the housing 2, and the gas cylinder 100 is loaded into the opened cylinder loading space 3 as indicated by the arrow in FIG. In the gas supply device 1, the gas cylinder 100 is fitted into the opposing cylinder fitting guide portion 14, and a part of the outer peripheral portion penetrates through the bottom plate 4 and protrudes outward in the cylinder loading space portion 3. Is loaded.

  In the gas supply device 1, with the three gas cylinders 100 loaded, the handle 25 is held and the lid 9 is turned counterclockwise in FIG. 9 to close the cylinder loading space 3. . In the gas supply device 1, the cylinder actuating member 28 presses the bottom plate 102 by the turning operation of the lid body 9, and the gas cylinder 100 is slid to the front side of the housing 2 in the cylinder fitting guide portion 14. In the gas supply device 1, the gas cylinder 100 operates the opposing cover cam lock mechanism 12 and the intermediate gas cylinder detection mechanism 13 by the respective tightening portions 109. In the gas supply device 1, the gas cylinder 100 fits the positioning member 21 into the positioning cutout portion 106 </ b> A with respect to the gas supply unit 11, so that the coupling is performed in a correct state.

  In the gas supply device 1, the cam lever 31 of the lid cam lock mechanism 12 slides toward the front side against the elastic force of the coil spring 33 by the first gas cylinder 100 </ b> A and the third gas cylinder 100 </ b> C. In the gas supply device 1, the cam pin 32 is moved to the front side by the sliding operation of the cam lever 31, and becomes a position deviated from the rotation locus of the cam portion 27 of the lid body 9. In the gas supply device 1, the second cam cylinder 100 </ b> B causes the intermediate cam lever 38 of the intermediate gas cylinder detection mechanism 13 to slide toward the front side against the elastic force of the intermediate coil spring 39. In the gas supply device 1, the lid locking cam portion 38 </ b> B is moved to the front side by the sliding operation of the intermediate cam lever 38, and is at a position deviated from the rotation locus of the cam rod 26 of the lid 9.

  In the gas supply device 1, the lid body 9 whose rotational amount is regulated by these mechanisms by the operation of the lid cam lock mechanism 12 and the intermediate gas cylinder detection mechanism 13 is used as the cover plate portion 22 for the front beam plate 7 of the housing 2. It is possible to perform a rotation operation until substantially the same surface is formed. In the gas supply apparatus 1, the gas cylinder 100 is further slid by the lid body 9, and the stem 112 is fitted to the opposing holding valve mechanism 19 of the gas supply unit 11. In the gas supply device 1, the valve assembly 103 of the gas cylinder 100 is opened, and fuel gas is supplied from the stem 112 into the gas flow path of the gas supply unit 11.

  In the gas supply device 1, the lid body 9 whose rotational operation force is released is configured by the lid body cam lock mechanism 12 so as to form substantially the same surface as the ceiling portion of the housing 2 as shown in FIGS. 2 and 3. The loading space 3 is held in the first locked state. In the gas supply device 1, the first cam portion 29 of the lid 9 and the cam pin 32 of the cam lever 31 are relatively engaged, and this engagement state is held by the elastic force of the coil spring 33. In the gas supply device 1, the backward movement of the lid body 9 is also restricted by the lock pin 41 that locks the rear side edge of the cam portion 27.

  In the gas supply device 1, the three gas cylinders 100 are loaded in the cylinder loading space 3 by the first locked state of the lid 9, and these gas cylinders 100 are correctly coupled to the gas supply unit 11. A state is identified. In the gas supply device 1, the lid 9 is held in the first locked state by the lid cam lock mechanism 12, so that the coupled state of the gas cylinder 100 and the gas supply unit 11 is maintained.

  In the gas supply device 1, after use, all the gas cylinders 100 are taken out from the cylinder loading space 3 in which the handle 25 is gripped and the lid body 9 is rotated clockwise to open as shown in FIG. 9. . In the gas supply device 1, the lid 9 is held in the first locked state with the cam pin 32 engaged with the shallow first cam portion 29 as described above. By doing so, the engagement state between the first cam portion 29 and the cam pin 32 is released, and the rotation can be performed.

  In the gas supply device 1, the lid cam lock mechanism 12 is released from the engagement state of the first cam portion 29 and the cam pin 32, so that the cam lever 31 is initially shown by an arrow B <b> 2 in FIG. 5 due to the elastic force of the coil spring 33. Performs return operation to the position. In the gas supply device 1, the intermediate gas cylinder detection mechanism 13 performs the return operation to the initial position indicated by the arrow D <b> 2 in FIG. 8 by the elastic force of the intermediate coil spring 39 by releasing the locking state by the second gas cylinder 100 </ b> B. Do.

  In the gas supply device 1, the three gas cylinders 100 are not loaded in the cylinder loading space 3, or the loaded gas cylinders 100 are not correctly coupled to the gas supply unit 11 (unloaded state). In general, the holding in the above-described first locked state is disabled even if the lid body 9 is rotated. In the gas supply device 1, even if the lid body 9 is rotated when the first gas cylinder 100 </ b> A or the third gas cylinder 100 </ b> C is not loaded, the lid body cam lock mechanism 12 prevents the lid body 9 from being rotated. The

  In the gas supply device 1, since the gas cylinder 100 is not loaded in the cylinder loading space 3 even when the lid 9 is rotated, the lid cam lock mechanism 12 is in an inoperative state, that is, the cam lever 31 slides. No action is taken. In the gas supply device 1, the deep second cam portion 30 formed on the distal end side of the cam portion 27 of the lid body 9 is engaged with the cam pin 32 of the cam lever 31 as shown in FIG. Further, it is impossible to perform the rotation operation. In the gas supply device 1, the second lock that slightly protrudes from the housing 2 is maintained by maintaining the engaged state of the second cam portion 30 and the cam pin 32 even when the lid 9 releases the rotational operation force. Kept in a state.

  In the gas supply device 1, in this second locked state, the cam rod 26 provided on the lid body 9 abuts on a stepped-down portion 37B5 formed on the slide guide standing wall portion 37B. In the gas supply device 1, even in the second locked state, the backward movement of the lid body 9 is also restricted by the lock pin 41 that locks the rear side edge of the cam portion 27.

  In the gas supply device 1, even if the lid body 9 is rotated in the state where the second gas cylinder 100B is not loaded, the intermediate gas cylinder detection mechanism 13 is not operated, that is, the intermediate cam lever 38 is not slid. In the gas supply device 1, the cam rod 26 abuts against the lid locking cam portion 38 </ b> B of the intermediate cam lever 38 by rotating the lid 9. In the gas supply device 1, the lid 9 is slightly engaged with the second cam portion 30 and the cam pin 32 in the above-described lid cam lock mechanism 12, so that the housing 2 is slightly disengaged even when the rotational operation force is released. The projecting second locked state is maintained.

  Note that the gas supply device 1 can be used only in a state where the three gas cylinders 100 are loaded in the cylinder loading space 3 and correctly coupled to the gas supply unit 11 as described above. In the gas supply apparatus 1, an empty gas cylinder 100 is loaded into the cylinder loading space 3 in a usage pattern in which three gas cylinders 100 are unnecessary. In the gas supply device 1, when the specification is such that a larger number of gas cylinders 100 are loaded, the intermediate gas cylinder detection mechanism 13 is provided so as to partition the loading region at the intermediate position.

  The present invention is not limited to the gas supply device 1 shown as the above-described embodiment, and various changes and substitutions can be made to the configuration requirements without departing from the scope of the claims and the gist thereof. Of course.

  DESCRIPTION OF SYMBOLS 1 Gas supply apparatus, 2 housing | casing, 3 cylinder loading space part, 3A 1st loading area part, 3B 2nd loading area part, 3C 3rd loading area part, 4 bottom plate, 5 front plate, 6 side plate, 9 lid, DESCRIPTION OF SYMBOLS 11 Gas supply unit, 12 Lid body cam lock mechanism, 13 Intermediate gas cylinder detection mechanism, 17 Cylinder fitting guide part, 15 Unit main body, 18 Pressure regulator, 21 Positioning member, 22 Cover board part, 23 Side board part, 24 Back board part , 25 handle, 26 cam rod, 27 cam part, 28 cylinder operating member, 29 first cam part, 30 second cam part, 31 cam lever, 32 cam pin, 33 coil spring, 37 mounting board, 38 intermediate cam lever, 39 intermediate coil spring , 40 guide pin, 41 lock pin, 100 gas cylinder, 101 can body, 109 winding part, 11 Stem

Claims (4)

In a gas supply device that loads a specified number of portable gas cylinders in a cylinder loading space in a housing and supplies fuel gas to a combustion device connected via a gas supply unit,
A lid that opens and closes the cylinder loading space and moves the portable gas cylinder by a closing operation to couple with the gas supply unit;
A lid cam lock mechanism that moves by the movement operation of the portable gas cylinder to hold the lid and releases the portable gas cylinder from the fitted state with the gas supply unit by a lid opening operation,
The lid is held in the cylinder loading space by a first lock state in which all the portable gas cylinders are coupled to the gas supply unit in the cylinder loading space by the lid cam lock mechanism; The portable gas cylinder is held in a second locked state in which the portable gas cylinder is not loaded, and the first and second locked states are held at different rotation positions with respect to the housing. A gas supply device for identifying a loading state of the portable gas cylinder in the cylinder loading space. A plurality of portable gas cylinders in which a valve structure incorporating a valve mechanism is assembled on one end side of a cylindrical can main body through a tightening portion that protrudes outward over the entire circumference in the cylinder loading space. Loading,
A plurality of holding valve mechanisms that are opened by being fitted to the opposed valve structures of the loaded portable gas cylinder and that are in communication with these holding valve mechanisms. A gas supply device for supplying fuel gas to a combustion device connected via a gas supply unit having a gas flow path, a pressure regulator for adjusting a supply gas pressure, and a plug portion for a main plug;
The bottom plate, the front plate, the pair of left and right side plates, and the back plate present a box shape with the ceiling portion open, and the specified number of the portable gas cylinders inside each with the opened ceiling portion as a cylinder loading opening The casing configured to constitute the cylinder loading space portion that is loaded side by side so that the valve structure side faces the front plate side and is adjacent to each other;
The cover includes a cover plate portion that closes at least a part of the cylinder loading space, a pair of left and right side plate portions facing the side plate of the housing, and a back plate portion. A portion located on the face plate side is rotatably supported by a support shaft that is supported between the side plates of the housing, and the first cam portion and the second cam portion are spaced apart from each other in the height direction by the side plate portion. The lid formed with a cam portion comprising:
The valve assembly is configured by pressing the portable gas cylinder, which is attached to the back plate portion of the lid body and is loaded in the cylinder loading space portion in accordance with the closing operation of the lid body, toward the front plate side of the casing. Cylinder operating members that are respectively fitted to the holding valve mechanisms facing each other of the gas supply unit;
A cam receiving portion that is movably combined with the inner surface of the side plate of the casing and is engaged with the first cam portion or the second cam portion of the lid at the rear end portion is provided and the portable A cam lever having a cylinder engaging portion formed at a position corresponding to the tightening portion of the gas cylinder, and an elastic force that imparts engagement behavior of the cam receiving portion and the cam portion of the lid body to each cam lever. A lid cam lock mechanism having an elastic member to be
The lid is held in a first lock state in which all the portable gas cylinders are coupled to the gas supply unit in the cylinder loading space by the lid lock cam mechanism, and in the cylinder loading space. By holding the portable gas cylinder in a second locked state in which the portable gas cylinder is not loaded, and by holding the rotating position with respect to the casing differently in the first locked state and the second locked state. A gas supply device for identifying a loading state of the portable gas cylinder in the cylinder loading space. A gas supply device for loading three or more portable gas cylinders into the cylinder loading space of the casing;
The lid is provided with a cam rod on the inner surface,
A mounting board erected on the bottom plate of the casing along the portable gas cylinder loaded at an intermediate position, and a movable board along the mounting board, and the end of the casing on the front plate side. An intermediate cam lever having an engaging portion formed corresponding to the winding tightening portion of the portable gas cylinder and a lid locking cam portion formed corresponding to the cam rod of the lid, and the intermediate cam lever An intermediate gas cylinder having an intermediate elastic member for applying an elastic force as a detachment force from the gas supply unit of the portable gas cylinder loaded at an intermediate position via the engaging portion by urging to the face plate portion side Equipped with a detection mechanism,
The intermediate gas cylinder detection mechanism releases the locking state of the cam rod by the lid locking portion in the first locked state with respect to the lid, and the intermediate portable gas cylinder in the cylinder loading space. The charged state of the portable gas cylinder loaded at an intermediate position is detected by locking the cam rod by the lid locking cam portion in the second locked state in which no gas is loaded. 2. The gas supply device according to 2.   The casing is fitted with the outer peripheral portion of the loaded portable gas cylinder to the bottom plate that constitutes the cylinder loading space portion to provide a guide action of the moving operation and the height of the cylinder loading space portion. The gas supply device according to any one of claims 1 to 3, wherein a plurality of cylinder fitting guide portions for reducing the pressure are formed.

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