JP2008164270A - Built-in type gas stove - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily connect a gas supply tube to an inlet fitting, and to prevent loosening of the gas supply tube from the inlet fitting due to an unforeseen accident. <P>SOLUTION: A plug part 81 comprising one part of a quick joint is provided on a tip of the inlet fitting 3d. A fitting tube part 82 that can be inserted and detached with respect to the plug part 81, is provided on a downstream side end of a cock body 6a of a gas cock 6. An operation tube 84 is slidably provided on an outer circumference face of the fitting tube part 82. When the operation tube 84 is positioned in a connection position, the fitting tube part 82 is prevented from loosening from the plug part 81, and when the operation tube 84 is positioned in a release position, loosening of the fitting tube part 82 from the plug part 81 is allowed. A stopper member 9 preventing moving of the operation tube 84 from the connection position to a release position side, is detachably provided on the cock body 6. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a built-in gas stove in which a gas pipe such as a gas supply pipe can be easily attached to and detached from a connection base provided at a lower portion of a stove body.

  A conventional built-in gas stove of this type is described in Patent Document 1 below. This built-in gas stove has a housing with an open top surface and a gas stove body provided at the upper end of the housing, and the lower part inserted into the housing of the gas stove body is supplied to the gas stove body. A lead-out base (connection base) for supplying the gas thus supplied to another gas device is provided. One end of a gas pipe is connected to the connection base, and the other end of the gas pipe is connected to a gas device. Thereby, gas is supplied to a gas apparatus via a gun stove body.

  The connection of the gas pipe to the outlet cap must be made in a narrow space within the housing. For this reason, there was a problem that it was difficult to perform the connection work. Therefore, in the one described in Patent Document 1, a plug portion that forms a part of the quick joint is formed at the tip of the lead base so that the lead base and the gas pipe constitute a quick joint. A fitting cylinder part that is removably fitted to the plug part is provided at the upstream end, and the operation cylinder is fitted on the outer periphery of the fitting cylinder part so as to be movable between the connection position and the release position. Are combined. And after fitting the fitting cylinder part to the plug part in the state where the operation cylinder is located at the release position, when the operation cylinder is moved to the connection position, the fitting cylinder part cannot be detached from the plug part, A gas pipe is connected to the outlet base in a non-detachable manner. When the operation cylinder is moved from the connection position to the release position, the fitting cylinder part can be detached from the plug part, and the gas pipe can be removed from the outlet base.

JP 2001-41459 A

  In the built-in type gas stove having the above-described configuration, there is a possibility that the gas pipe may be accidentally detached from the outlet cap when an article is taken in / out from the inlet / outlet provided in the front portion of the casing. That is, a release tool for moving the operation cylinder from the connection position to the open position is attached to the lead-out cap side. The release tool protrudes downward from the lower end surface of the gas stove body so that it can be manually operated. For this reason, when the article is being put in / out from the loading / unloading port, the release tool is erroneously operated by the article, and the operation cylinder is moved from the connection position to the release position. As a result, there is a possibility that the gas pipe may come off from the outlet base.

Some quick joints directly operate the operation cylinder directly without providing a release tool. When a quick joint of this type is used, the operation cylinder is protruded downward from the lower end surface of the gas stove body in order to manually operate the operation cylinder. Therefore, even in such a configuration, there is a possibility that the operation tube is moved from the connection position to the release position during the loading / unloading of the article from the loading / unloading port, and the gas pipe is detached from the outlet cap.

In order to solve the above-mentioned problem, the first invention is a state in which a mounting opening is opened on the upper surface portion and a loading / unloading opening is opened on the front surface portion, and at least a lower portion is inserted into the housing from the mounting opening. The gas stove body attached to the casing and a door that opens and closes the front opening of the casing, and a connection base for connecting a gas pipe to the lower part of the gas stove body inserted into the casing is provided. In the built-in type gas stove in which the lower part of the internal space of the casing below the gas stove main body is a storage space in which articles are taken in and out from the inlet / outlet, the connection base and the gas pipe constitute a quick joint A plug part that forms a part of a quick joint is provided at the tip of the connection base, and a fitting tube part that is detachably fitted to the outer periphery of the plug part at the tip of the gas pipe Is provided. On the outer periphery of the fitting tube portion, the operation tube is slidably fitted between a connection position and a release position separated from the connection position by a predetermined distance toward the rear end side of the fitting tube portion. A stopper member that prevents the operation cylinder from moving from the connection position to the release position side is detachably provided on the outer periphery of the gas pipe at the base end side from the operation cylinder. The fitting tube portion is prevented from slipping out of the plug portion when positioned at the connection position, and the fitting tube portion is allowed to slip out of the plug portion when positioned at the release position. It is characterized by.
In order to solve the above problem, the second invention is a state in which a mounting opening is opened on the upper surface portion and a loading / unloading opening is opened on the front surface portion, and at least a lower portion is inserted into the housing from the mounting opening. The gas stove body attached to the casing and a door that opens and closes the front opening of the casing, and a connection base for connecting a gas pipe to the lower part of the gas stove body inserted into the casing is provided. In the built-in type gas stove in which the lower part of the internal space of the casing below the gas stove main body is a storage space in which articles are taken in and out from the inlet / outlet, the connection base and the gas pipe constitute a quick joint A plug part that forms a part of a quick joint is provided at the tip of the connection base, and a fitting tube part that is detachably fitted to the outer periphery of the plug part at the tip of the gas pipe Is provided. On the outer periphery of the fitting cylinder part, an operation cylinder is provided slidably between a connection position and a release position separated from the connection position by a predetermined distance toward the rear end side of the fitting cylinder part, A male screw portion is provided on the outer peripheral surface of the connection base, and a female screw portion is provided on the inner peripheral surface of the distal end portion of the operation tube so as to fix the operation tube to the connection position by screwing with the male screw portion. The operation tube prevents the fitting tube portion from coming out of the plug when the operation tube is located at the connection position, and the fitting tube portion is removed from the plug portion when located at the release position. It is characterized by allowing.
In order to solve the above-mentioned problem, the third invention is a state in which a mounting opening is opened in the upper surface portion and a loading / unloading opening is opened in the front surface portion, and at least a lower portion is inserted into the housing from the mounting opening. The gas stove body attached to the casing and a door that opens and closes the front opening of the casing, and a connection base for connecting a gas pipe to the lower part of the gas stove body inserted into the casing is provided. In the built-in type gas stove in which the lower part of the internal space of the casing below the gas stove main body is a storage space in which articles are taken in and out from the inlet / outlet, the connection base and the gas pipe constitute a quick joint A plug part that forms a part of a quick joint is provided at the tip of the connection base, and a fitting tube part that is detachably fitted to the outer periphery of the plug part at the tip of the gas pipe Is provided. On the outer periphery of the fitting cylinder part, an operation cylinder is provided slidably between a connection position and a release position separated from the connection position by a predetermined distance toward the rear end side of the fitting cylinder part, A male screw portion is provided on the outer peripheral surface of the fitting tube portion, and a female screw portion is provided on the inner peripheral surface of the operation tube so as to fix the operation tube to the connection position by screwing with the male screw portion. The operation tube prevents the fitting tube portion from coming out of the plug when the operation tube is located in the connection position, and the fitting tube portion comes out of the plug portion when located in the release position. It is characterized by allowing that.
In order to solve the above-mentioned problem, the fourth invention is a state in which a mounting opening is opened on the upper surface portion and a loading / unloading opening is opened on the front surface portion, and at least a lower portion is inserted into the housing from the mounting opening. The gas stove body attached to the casing and a door that opens and closes the front opening of the casing, and a connecting base having a gas pipe connected to the lower part inserted into the casing of the gas stove body is provided. In the built-in type gas stove in which the lower part of the internal space of the casing below the gas stove main body is a housing space in which articles are taken in and out from the inlet and outlet, the connection base and the gas pipe constitute a quick joint A plug part that forms a part of a quick joint is provided at the tip of the connection base, and a fitting tube part that is detachably fitted to the outer periphery of the plug part at the tip of the gas pipe Is provided. On the outer periphery of the fitting cylinder part, an operation cylinder is provided slidably between a connection position and a release position separated from the connection position by a predetermined distance toward the rear end side of the fitting cylinder part, A screw member that moves the operation cylinder from the release position to the connection position is screwed onto the outer periphery of the gas pipe on the base end side from the operation cylinder, and the operation cylinder is located at the connection position. The fitting cylinder part is sometimes prevented from coming out of the plug part, and the fitting cylinder part is allowed to come out from the plug part when it is in the release position.

  According to the present invention having the above-described characteristic configuration, when the gas pipe is connected to the connection base, the operation cylinder is fixed at the connection position by the stopper member, the male screw part and the female screw part or the screw member that are screwed together, and is moved to the release position. There is no movement. Therefore, it is possible to prevent the gas pipe from being detached from the connection base.

The best mode for carrying out the present invention will be described below with reference to the drawings.
1 to 3 show a system kitchen SK according to a first embodiment of the present invention. In the system kitchen SK, the built-in gas stove 1 according to the present invention is integrally provided as a part of the system kitchen SK. The system kitchen SK has a housing 2. A part of the casing 2 is used as a casing of the gas stove 1. The gas stove 1 may be provided as an independent one. Of course, in that case, a casing dedicated to the gas stove 1 is used instead of the casing 2.

  As shown in FIG. 3, a mounting port 2 a is provided on the upper surface of the housing 2. On the front surface of the housing 2, an operation port 2 b is provided at the upper part, and an access port 2 c is provided at the lower part. A gas stove body 3 having a gas burner (not shown) or the like is inserted into the mounting port 2a with its upper portion protruding upward from the mounting port 2a, and the peripheral portion of the gas stove body 3 faces the mounting port 2a. It is placed and fixed on the upper surface of the housing 2. The internal space of the housing 2 below the lower surface 3a of the gas stove main body 3 is a housing space S. A front surface 3b of the gas stove body 3 provided with an operation knob (not shown) or the like is exposed to the front through the operation port 2b. Note that the gas stove body 3 may be entirely inserted into the mounting opening 2a.

  The entrance / exit 2 c of the housing 2 is opened and closed by the door 4. That is, a storage box 5 having an open top is integrally provided at the bottom of the back surface of the door 4. The storage box 5 is provided inside the housing 2 so as to be movable in the front-rear direction between a closed position and an open position. When the storage box 5 is moved to the closed position, the door 4 closes the entrance / exit 2c as shown in FIG. When the storage box 5 is moved to the open position, the door 4 moves forward (leftward in FIG. 3) from the housing 2 and opens the entrance / exit 2c. Therefore, various items such as the basket B accommodated in the accommodation box 5 can be taken in and out from the entrance 2c. Instead of the door 4, a rotating door may be provided in the housing 2. In that case, the storage box 5 is not usually provided.

  As shown in FIG. 4, the body 3 </ b> A that is a casing of the gas stove main body 3 is configured by a metal plate. A through hole 3c penetrating the body 3A in the vertical direction is formed at the rear end of the lower surface of the body 3A (the lower surface of the gas stove body 3) 3a. An introduction base (connection base) 3d connected to the gas burner of the gas stove main body 3 is disposed in the through hole 3c in a through state. The introduction cap 3d has a tubular shape, and is arranged with its tip opening facing downward. The introduction cap 3d may be provided toward the rear in the horizontal direction or in the left-right direction. In that case, the through hole 3c is also provided horizontally on the rear surface or the left and right side surfaces of the body 3A.

A gas supply pipe (gas pipe) G made of a flexible pipe is connected to the introduction base 3d through a gas plug 6. The upstream end of the gas supply pipe G is connected to a main plug (not shown). The downstream end of the gas supply pipe G enters the accommodation space S through the through hole 2e provided in the back plate part 2d of the housing 2, and the horizontal direction of the plug body (gas pipe) 6a of the gas plug 6 It is connected via a connecting device 7 to the upstream end facing backward. Therefore, when the valve body 6b is rotated from the closed position shown in FIG. 4 to the open position by the handle 6c, gas is supplied to the gas stove main body 3. Of course, when the valve body 6b is rotated to the closed position shown in FIG. 4, the supply of gas to the gas stove body 3 is stopped. The connecting device 7 for connecting the plug body 6a and the gas supply pipe G is well known and will not be described.

The downstream end portion (upper end portion in FIG. 4) of the plug body 6a extends upward, and is detachably connected to the distal end portion (lower end portion in FIG. 4) of the introduction cap 3d. In order to enable the downstream end of the plug body 6a to be easily attached to and detached from the introduction base 3d, the introduction base 3d and the downstream end of the closure body 6a constitute a quick joint 8. Yes.

  That is, the plug portion 81 is formed at the tip end portion of the introduction cap 3d that protrudes downward from the lower surface 3a toward the accommodation space S. The plug portion 81 has a straight cylindrical shape. On the outer peripheral surface of the plug portion 81, an engagement concave portion 81a extending annularly along the circumferential direction is formed.

  On the other hand, the straight fitting cylinder part 82 is formed in the downstream end part of the plug main body 6a. The fitting cylinder portion 82 has an inner diameter substantially the same as the outer diameter of the plug portion 81 and can be removably fitted to the outer periphery of the plug portion 81. The fitting cylinder portion 82 is formed with a plurality of through holes 82a penetrating the peripheral wall portion in the radial direction. The through holes 82 a are arranged at equal intervals in the circumferential direction of the fitting cylinder portion 82. In addition, the through-hole 82a is fitted into the plug portion 81 until the tip end surface 81b of the plug portion 81 taps against a reference surface 82b formed on the inner peripheral surface of the fitting tube portion 82. When this is done, the plug part 81 and the fitting cylinder part 82 are arranged so as to be located at substantially the same position as the engagement recess 81a in the axial direction.

  A sphere 83 is inserted into the through hole 82a so as to be movable in the axial direction of the through hole 82a (the radial direction of the fitting tube portion 82). The outer diameter of the sphere 83 is set larger than the thickness of the peripheral wall portion of the fitting cylinder portion 82. Therefore, in a state where the fitting cylinder portion 82 is fitted to the plug portion 81, when the through hole 82a and the engagement recess 81a are separated from each other in the axial direction of the fitting cylinder portion 82, the fitting cylinder portion 82 The inner end portion of the sphere 83 in the radial direction hits the outer peripheral surface of the plug portion 81, and the outer end portion protrudes to the outside from the through hole 82a. On the other hand, when the through hole 82a and the engaging recess 81a are located at the same position in the axial direction of the fitting tube portion 82, the inner end of the sphere 83 enters the engaging recess 81a and the outer end is fitted. It is located on the outer peripheral surface of the joint tube portion 82 or slightly inside it. In a state where the inner end of the sphere 83 has entered the engagement recess 81a, the fitting cylinder 82 is locked to the plug 81 via the sphere 82, and the fitting cylinder 82 moves in the axial direction thereof. Can not be.

  A straight operation tube 84 is fitted to the outer periphery of the fitting tube portion 82. The operation cylinder 84 has an inner diameter that is substantially the same as the outer diameter of the fitting cylinder portion 82, and is fitted to the fitting cylinder portion 82 so as to be slidable in the axial direction thereof. A coil spring 85 as an urging means is provided between the operation cylinder 84 and the fitting cylinder portion 82. The operation cylinder 84 is biased toward the distal end side of the fitting cylinder portion 82 by the coil spring 85. A large-diameter hole portion 84 a is formed on the inner peripheral surface of the distal end portion of the operation tube portion 84. When the bottom surface 84b of the large-diameter hole portion 84a abuts against a locking member 86 that is provided on the outer peripheral surface of the distal end portion of the operation tube portion 82 so as not to move in the axial direction, the operation tube 84 is moved to the distal end side of the fitting tube portion 82. Can no longer move to. The position of the operation cylinder 84 at this time is a connection position. When the operation cylinder 84 is located at the connection position, the inner peripheral surface of the operation cylinder 84 that slides on the outer peripheral surface of the fitting cylinder portion 82 faces the through hole 82 a and abuts against the sphere 83. Therefore, the outer end portion of the sphere 83 cannot protrude outward from the through hole 82a, and the inner end portion protrudes inward from the through hole 82a.

  The inner diameter of the large-diameter hole portion 84a is substantially equal to the size obtained by adding the dimension obtained by subtracting the thickness of the peripheral wall portion of the fitting cylinder portion 82 from the outer diameter of the sphere 83 and the outer diameter of the plug portion 81. Is set. Therefore, when the operation cylinder 84 is moved from the connection position to the position shown in FIG. 8 or further to the position where the operation cylinder 84 is moved further to the proximal end side of the fitting cylinder portion 82 (hereinafter referred to as the release position), the large diameter hole portion 84a is The inner peripheral surface comes to face the sphere 83. As a result, the fitting portion of the spherical body 83 is positioned until the inner end portion thereof is positioned on the same circumferential surface as the inner peripheral surface of the fitting cylindrical portion 82 or slightly outside the inner peripheral surface. 82 can be moved radially outward. In such a moved state, the sphere 83 does not enter the engaging recess 81 a, so that the fitting cylinder portion 82 can be inserted into and removed from the plug portion 81.

  A stopper member 9 is fitted on the outer peripheral surface of the stopper body 6a. The stopper member 9 is made of resin, and is formed in a substantially C shape by opening a part in the circumferential direction as shown in FIG. The inner diameter of the stopper member 9 is set to be substantially the same as or slightly smaller than the outer diameter of the plug body 6a to which the stopper member 9 is fitted. The opening portion of the stopper member 9 is narrower than the outer diameter of the fitting tube portion 82, but can be made slightly wider than the fitting tube portion 82 by elastically deforming the stopper member 9, thereby the stopper member 9. Can be attached to and removed from the outer periphery of the fitting tube portion 82 from the radial direction. The stopper member 9 is prevented from moving in the direction from the distal end side to the proximal end side of the fitting cylinder portion 82 by having one end surface of the stopper member 9 abutting against an annular step surface 6d formed in the plug body 6a. The other end surface of the stopper member 9 abuts against the base end surface of the operation cylinder 84 located at the connection position. This prevents the operation cylinder 84 from moving from the connection position to the release position. Of course, if the stopper member 9 is removed from the fitting cylinder portion 82, the operation cylinder 84 can be moved from the connection position to the release position.

  When the stopper body 6a is attached to the introduction cap 3d, the stopper member 9 is first removed from the stopper body 6a as shown in FIG. Next, as shown in FIG. 7, the operation cylinder 84 is moved from the connection position to the release position against the urging force of the coil spring 85. Thereafter, the fitting cylinder part 82 is fitted to the plug part 81. When the fitting cylinder part 82 is fitted to the plug part 81 until the reference surface 82b of the fitting cylinder part 82 abuts against the tip end surface 81b of the plug part 81, as shown in FIG. It faces and can move toward the radially inner side of the fitting tube portion 82. If the operation cylinder 84 can be freely moved in this state, the operation cylinder 84 is moved to the connection position by the urging force of the coil spring 85 as shown in FIG. Here, at the beginning of the movement of the operation tube 84, the bottom surface 84b of the large-diameter hole portion 84a presses and moves the sphere 83 toward the radially inner side of the fitting tube portion 82, and the sphere 83 is fitted into the locking recess 81a. I will. After the operation cylinder 84 has moved to the connection position, the movement of the sphere 83 to the outside is blocked by the operation cylinder 84, and the sphere 83 is kept in the engagement recess 81a. As a result, the fitting cylinder part 82 is connected to the plug part 81 so as not to be detached, and as a result, the plug body 6a is connected to the introduction cap 3d so as not to be detached. Thereafter, the stopper member 9 is fitted into the plug body 6a. Thereby, the movement from the connection position of the operation cylinder 84 to the release position side is prevented. The space between the outer peripheral surface of the plug portion 81 and the inner peripheral surface of the fitting tube portion 82 is hermetically sealed by the seal members 10 and 11.

  When removing the plug body 6a from the introduction cap 3d, the stopper member 9 is first removed from the plug body 6a. Next, the operation cylinder 84 is moved from the connection position to the release position. Then, the sphere 83 can move toward the outer side in the radial direction of the fitting cylinder portion 82, and when the fitting cylinder portion 82 is moved from the distal end side to the proximal end side, the sphere 83 is moved by the side surface of the engagement recess 81a. The ball 83 is moved outward in the radial direction of the fitting cylinder 82, and the sphere 83 escapes from the engagement recess 81a. Therefore, the fitting cylinder portion 82 can continue to move from the distal end side toward the proximal end side, and the fitting cylinder portion 82 can be detached from the plug 81. As a result, the stopper body 6a can be removed from the introduction cap 3d.

  In the built-in type gas stove 1 having the above-described configuration, even when the operation cylinder 84 is pulled downward due to some accident when an article such as the bag B is put in and out of the storage space S, the operation cylinder 84 is released from the connection position to the release position side. The stopper member 9 is prevented from moving to. Therefore, it is possible to prevent an accident in which the gas stopper 6 is detached from the introduction cap 3d.

  Next, another embodiment of the present invention will be described. In the following embodiment, only the configuration different from the above-described embodiment will be described, and the same components are denoted by the same reference numerals and description thereof will be omitted.

  10 and 11 show a second embodiment of the present invention. In this embodiment, a stopper member 9A is used instead of the stopper member 9 of the above embodiment. The stopper member 9 </ b> A is made of a metal wire such as a steel wire, and has a substantially C shape like the stopper member 9. The stopper member 9 is fitted in an annular groove 6e formed on the outer peripheral surface of the stopper main body 6a so as to be detachable and immovable in the axial direction of the fitting cylinder portion 82. In addition, the stopper member 9A abuts against the base end surface of the operation cylinder 84 located at the connection position. Thereby, the movement of the operation cylinder 84 from the connection position to the release position side is prevented.

  FIG. 12 shows a third embodiment of the present invention. In this embodiment, a quick joint 8A is employed instead of the quick joint 8. The quick joint 8A is configured such that the operation cylinder 84 is fixed to the connection position by screw engagement. That is, the external thread part 3e is formed in the outer peripheral surface located in the base end side from the plug part 81 of 3 d of inlet_port | entrance caps. The diameter of the valley of the male screw portion 3 e is set to be larger than the outer diameter of the plug portion 81. On the other hand, a female screw portion 84c that can be screwed into the male screw portion 3e is formed on the inner peripheral surface of the distal end portion of the large diameter hole portion 84a of the operation cylinder 84.

  When the plug body 6a is connected to the introduction cap 3d by the quick joint 8A having the above-described configuration, the stopper member 9 is first removed from the plug body 6a, and the operation tube 84 is moved to the release position. Next, the fitting cylinder portion 82 is fitted to the plug portion 81 until the reference surface 82 b of the fitting cylinder portion 82 abuts against the tip end surface 81 a of the plug portion 81. Thereafter, the operation cylinder 84 is moved to the distal end side of the fitting cylinder portion 82 by the coil spring 85. At the beginning of the movement, the operation cylinder 84 moves the sphere 83 to the inside in the radial direction of the fitting cylinder portion 82 and is fitted into the engagement recess 81a. The behavior so far is the same as in the above embodiment. However, in this embodiment, before the operation cylinder 84 hits the locking member 86, the tip of the female screw portion 84c hits the tip of the male screw portion 3e as shown in FIG. Therefore, the operation tube 84 is rotated to screw the female screw portion 84c into the male screw portion 3d, and the operation tube 84 is moved to the distal end side with respect to the fitting tube portion 82. Then, first, the bottom surface 84b of the large-diameter hole 84a hits the locking member 86, and the operation cylinder 84 stops at the connection position. Immediately thereafter, the reference surface 82 b of the fitting cylinder portion 82 abuts against the tip end surface 81 a of the plug portion 81. As a result, the operation cylinder 84 is not loosened unless it is rotated with a force greater than a predetermined size, and is fixed at the connection position. Thereafter, the stopper member 9 is fitted to the stopper main body 6a to complete the connection of the stopper main body 6a to the introduction cap 3d. In addition, when removing the plug main body 6a from the introduction cap 3d, the procedure opposite to the above may be adopted, and the description thereof is omitted.

  In this embodiment, the operation tube 84 is not only fixed at the connection position by the stopper member 9 but also fixed by screwing the male screw portion 3e and the female screw portion 84c. It is possible to more reliably prevent the movement from the position to the release position side. In addition, since the position of the operation cylinder 84 is fixed by screwing the male screw portion 3e and the female screw portion 84c, the stopper member 9 is not necessarily required. In addition, since the tip end surface 81b of the plug portion 81 and the reference surface 82b of the fitting cylinder portion 82 are annularly brought into surface contact with each other, even if the seal members 10 and 11 are burned out due to a fire or the like, A large amount of gas can be prevented from leaking from between the fitting cylinder portion 82.

  FIG. 15 shows a fourth embodiment of the present invention. In this embodiment, a quick joint 8B is used instead of the quick joint 8A. In the quick coupling 8B, the operation cylinder 84 is divided into two parts, a sliding part 84A located on the proximal end side in the axial direction and a nut part 84B located on the distal end side. The base end portion of the nut portion 84B is screwed and fixed. The sliding portion 84A is slidably fitted to the outer peripheral surface of the fitting cylinder portion 82. When the operation cylinder 84 is located at the connection position, the sphere 83 escapes from the engagement recess 81a. Stop. When the operation cylinder 84 is located at the release position, the nut portion 84B allows the inner peripheral surface of the base end portion to face the sphere 83 and allow the sphere 83 to escape from the engagement recess 81a. A female thread portion 84c is formed on the inner peripheral surface of the distal end portion of the nut portion 84B. A male screw portion 82 c into which the female screw portion 84 c is screwed is formed in the fitting cylinder portion 82. The operation tube 84 is fixed at the connection position by screwing the female screw portion 84c with the male screw portion 82c and tightening until the distal end surface of the sliding portion 84A hits the locking member 86. In this embodiment, the stopper member 9 or 9A is not used, but they may be used. The same applies to the following embodiments. In this embodiment, the front end face 8 b and the bottom face 82 b are formed as planes orthogonal to the axis of the plug part 81 and the fitting cylinder part 82.

  FIG. 16 shows a fifth embodiment of the present invention. In this embodiment, a quick joint 8C is used instead of the quick joint 8B. In the quick joint 8C, the sliding portion 84A and the nut portion 84B of the operation cylinder 84 are connected by a retaining ring 84C so as not to move in the axial direction of the operation cylinder 84 and to be rotatable.

  FIG. 17 shows a sixth embodiment of the present invention. In this embodiment, a screw member 12 is used in place of the stopper member 9 of the first embodiment. The screw member 12 has a short cylindrical shape, and is screwed into a screw portion 6f formed on the outer peripheral surface on the proximal end side from the fitting tube portion 82 of the plug body 6a. And if the screw member 12 is moved to the front end side of the fitting cylinder part 82, the screw member 12 will contact | abut to the base end surface of the operation cylinder 84 located in a connection position. This prevents the operation cylinder 84 from moving from the connection position to the release position. On the other hand, when the screw member 12 is moved by a predetermined distance from the position where it abuts against the operation cylinder 84 toward the rear end side of the fitting cylinder portion 82, the operation cylinder 84 can be moved from the connection position to the release position.

In addition, this invention is not limited to said embodiment, In the range which does not deviate from the summary, it can change suitably.
For example, in the above embodiment, the operation cylinder 84 is directly moved by hand. However, a release member similar to that described in Patent Document 1 is provided on the introduction base 3d side, and this release is performed. The operation cylinder 84 may be moved from the connection position to the release position by a member.
In the above embodiment, the entire plug portion 81 is protruded into the accommodation space S. However, at least a part of the operation cylinder 84 protrudes from the gas stove body 3 into the accommodation space S, and the protruding portion is If the manual operation is possible, the tip part or all of the plug part 81 may be provided in the gas stove main body 3.
Furthermore, in the above embodiment, the gas plug 6 is provided at the downstream end of the gas supply pipe G, and the plug body 6a of the gas plug 6 is used as the tip of the gas supply pipe, but the gas supply pipe G itself A quick joint or a stopper member may be provided directly at the tip of the slab.

1 is a partially omitted front view of a first embodiment of the present invention. It is a partially omitted plan view of the same embodiment. It is an expanded sectional view which follows the XX line of FIG. It is sectional drawing which shows the principal part of the embodiment. It is a perspective view which shows the stopper member used in the embodiment. It is sectional drawing which shows the quick coupling in the embodiment in the state before a connection. It is sectional drawing which shows the quick coupling in the state which moved the operation cylinder to the open position, and fitted the fitting cylinder part to the front-end | tip part of a plug. It is sectional drawing which shows the quick coupling in the state which made the fitting cylinder part fit to the plug part to the predetermined position. It is sectional drawing which shows the same quick coupling in the state which the connection completed. It is sectional drawing which shows the principal part of 2nd Embodiment of this invention. It is a perspective view which shows the stopper member used in the embodiment. It is sectional drawing which shows the principal part of 3rd Embodiment of this invention. It is sectional drawing which shows the quick coupling in the same embodiment in the state in which the internal thread of the operation cylinder hits the external thread part of the inlet cap. It is sectional drawing which shows the same quick coupling in the state which the connection completed. It is sectional drawing which shows the principal part of 4th Embodiment of this invention. It is sectional drawing which shows the principal part of 5th Embodiment of this invention. It is sectional drawing which shows the principal part of 6th Embodiment of this invention.

Explanation of symbols

G Gas supply pipe (gas pipe)
S accommodating space 1 built-in gas stove 2 housing 2a mounting port 2c loading / unloading port 3 gas stove body 3a bottom surface 3d introduction cap (connection cap)
3e Male thread part 4 Door 6 Gas plug 6a Plug body (gas pipe)
8 Rapid coupling 8A Rapid coupling 8B Rapid coupling 8C Rapid coupling 9 Stopper member 9A Stopper member 12 Screw member 81 Plug part 82 Fitting cylinder part 82c Male thread part 84 Operation cylinder 84c Female thread part

Claims (4)

A housing having a mounting opening on the upper surface and an opening in and out on the front surface; a gas stove body attached to the housing with at least a lower portion inserted into the housing from the mounting port; and the housing And a door that opens and closes the front opening of the gas stove, and is provided with a connection base to which a gas pipe is connected at a lower portion inserted into the casing of the gas stove body, and is located below the gas stove body in the internal space of the casing In the built-in type gas stove in which the part is an accommodation space in which articles are taken in and out from the above-mentioned entrance,
A plug part forming a part of a quick joint is provided at the tip of the connection base so that the connection base and the gas pipe constitute a quick joint, and an outer periphery of the plug part is provided at the tip of the gas pipe. A fitting cylinder portion is provided to be removably fitted to the outer periphery of the fitting cylinder portion, and an operation cylinder is connected to the outer periphery of the fitting cylinder portion toward the rear end side of the fitting cylinder portion with respect to the connection position and the connection position. The operating cylinder is slidably fitted to a release position separated by a predetermined distance, and the operation cylinder moves from the connection position to the release position on the outer periphery of the gas pipe on the proximal end side from the operation cylinder. A stopper member for preventing this is provided detachably, and when the operation cylinder is located at the connection position, the fitting cylinder part is prevented from coming out of the plug part, and is located at the release position. Allow the fitting tube part to come out of the plug part. Built-in gas stove which is characterized in that. A housing having a mounting opening on the upper surface and an opening in and out on the front surface; a gas stove body attached to the housing with at least a lower portion inserted into the housing from the mounting port; and the housing And a door that opens and closes the front opening of the gas stove, and is provided with a connection base to which a gas pipe is connected at a lower portion inserted into the casing of the gas stove body, and is located below the gas stove body in the internal space of the casing In the built-in type gas stove in which the part is an accommodation space in which articles are taken in and out from the above-mentioned entrance,
A plug part forming a part of a quick joint is provided at the tip of the connection base so that the connection base and the gas pipe constitute a quick joint, and an outer periphery of the plug part is provided at the tip of the gas pipe. A fitting cylinder portion is provided to be removably fitted to the outer periphery of the fitting cylinder portion, and an operation cylinder is connected to the outer periphery of the fitting cylinder portion toward the rear end side of the fitting cylinder portion with respect to the connection position and the connection position. Provided to be slidable between a release position separated by a predetermined distance, and provided with a male screw portion on the outer peripheral surface of the connection base, and screwed into the male screw portion on the inner peripheral surface of the distal end portion of the operation tube. Thus, an internal thread portion for fixing the operation tube to the connection position is provided, and the operation tube prevents the fitting tube portion from coming out of the plug when the operation tube is located at the connection position. The fitting tube part is removed from the plug part when Built-in stove, characterized in that to allow the exit. A housing having a mounting opening on the upper surface and an opening in and out on the front surface; a gas stove body attached to the housing with at least a lower portion inserted into the housing from the mounting port; and the housing And a door that opens and closes the front opening of the gas stove, and is provided with a connection base to which a gas pipe is connected at a lower portion inserted into the casing of the gas stove body, and is located below the gas stove body in the internal space of the casing In the built-in type gas stove in which the part is an accommodation space in which articles are taken in and out from the above-mentioned entrance,
A plug part forming a part of a quick joint is provided at the tip of the connection base so that the connection base and the gas pipe constitute a quick joint, and an outer periphery of the plug part is provided at the tip of the gas pipe. A fitting cylinder portion is provided to be removably fitted to the outer periphery of the fitting cylinder portion, and an operation cylinder is connected to the outer periphery of the fitting cylinder portion toward the rear end side of the fitting cylinder portion with respect to the connection position and the connection position. It is provided so as to be slidable between a release position separated by a predetermined distance, a male screw portion is provided on the outer peripheral surface of the fitting tube portion, and is screwed onto the male screw portion on the inner peripheral surface of the operation tube. Thus, an internal thread portion is provided for fixing the operation tube at the connection position, and the operation tube prevents the fitting tube portion from coming out of the plug when the operation tube is located at the connection position. When it is in the position, the fitting tube part comes out of the plug part. Built-in stove, characterized in that tolerate and. A housing having a mounting opening on the upper surface and an opening in and out on the front surface; a gas stove body attached to the housing with at least a lower portion inserted into the housing from the mounting port; and the housing And a door that opens and closes the front opening of the gas stove, and a connection base having a gas pipe connected to a lower portion inserted into the casing of the gas stove body is provided below the gas stove body in the internal space of the casing In the built-in type gas stove in which the part is an accommodation space in which articles are taken in and out from the above-mentioned entrance,
A plug part forming a part of a quick joint is provided at the tip of the connection base so that the connection base and the gas pipe constitute a quick joint, and an outer periphery of the plug part is provided at the tip of the gas pipe. A fitting cylinder portion is provided to be removably fitted to the outer periphery of the fitting cylinder portion, and an operation cylinder is connected to the outer periphery of the fitting cylinder portion toward the rear end side of the fitting cylinder portion with respect to the connection position and the connection position. A screw member that is slidable between a release position separated by a predetermined distance and moves the operation cylinder from the release position to the connection position on the outer periphery of the gas pipe on the proximal side from the operation cylinder And when the operation cylinder is located at the connection position, the fitting cylinder part is prevented from coming out of the plug part, and when the operation cylinder is located at the release position, the fitting cylinder part is A building that allows the plug part to come out. -In gas stove.

Images