JP2013228131A - Protection cap for plug of buried gas cock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a protection cap that is adaptable to various types of buried gas cocks having different distances between an upper surface of a floor plate and a plug part.SOLUTION: A knob 7c is disposed on an outer periphery of a cap part 7a of a protection cap 7. The knob 7c is configured to be rotatable by elastic deformation of a base end thereof between a standing position where the knob is standing upward from the cap part 7a and a folded position where the knob is in contact with an upper surface of the cap part 7a. The knob 7c is maintained at the folded position by press-fitting a locking projection 7i formed on the upper surface of the cap part 7a into a locking hole 7j formed in the knob 7c.

Description

The present invention relates to a protective cap for preventing dust and the like from adhering to a plug portion of an embedded gas plug attached to a building component, particularly a tip surface thereof.
In the present invention, the building component includes various well-known members to which the buried gas plugs are attached, such as walls and floors facing the room or joists.

  In general, an embedded gas stopper has a gas stopper body, a decorative plate, and a lid. The gas plug main body is housed in a fixed state in a through hole formed in the floor board (building component). The gas plug main body is formed with a plug portion facing the indoor side. The decorative board is provided on the floor board and covers the through hole so as not to be seen from the indoor side. A window hole is formed in the decorative plate. The window hole is disposed so as to face the plug portion. A lid is provided in the window hole. The lid can be displaced between an open position where the window hole is opened and a closed position where the window hole is closed. Therefore, when the lid is displaced to the open position, the plug portion is exposed to the indoor side through the window hole. A socket inserted from the room into the window hole is connected to the plug portion.

  A packing is provided inside the socket. The packing has an annular shape, and abuts against the distal end surface of the plug portion in an annular shape. Thereby, the inside of the plug part and the inside of the socket communicate with each other in an airtightly sealed state with respect to the outside.

  If dust or the like adheres to the distal end surface of the plug part, the airtightness between the socket and the plug part decreases. Therefore, in the one described in Patent Document 1 below, a protective cap is provided on the gas plug body. The protective cap includes a cap part that is detachably attached to the socket part, a connecting part that connects the cap part to the gas plug main body, and a knob part that stands up toward the indoor side from the cap part attached to the plug part. Have. The cap part attached to the plug part can be removed from the plug part by pulling the knob to the indoor side.

Japanese Utility Model Publication No. 52-41521

  The buried gas plug may be disposed in a case where the plug portion of the gas plug main body is disposed relatively far downward from the floor surface or may be disposed after being close to the floor surface. In the former case, it is necessary to increase the height of the knob. This is because the window hole is relatively small so that the finger cannot be fully inserted into the window hole. For this reason, if the height of the knob is low, it is difficult to grip the knob. However, when the height of the knob is increased, the knob protrudes indoors from the window hole when the plug is disposed close to the floor as in the former. For this reason, when the window hole is closed by the lid, there is a problem that the knob is caught between the inner peripheral surface of the window hole and the outer peripheral surface of the lid, and the lid is in a half-open state. It was. In the latter case, since the upper end portion of the plug portion is close to the window hole, the cap portion can be directly grasped and removed from the plug portion, and the knob portion may become an unnecessary length. .

  In addition, if the various protective caps from which the height of a knob part differs are manufactured, such a problem can be solved. However, if it does so, since the kind of protective cap increases, another problem that the manufacturing cost and management cost of a protective cap will increase correspondingly will arise.

In order to solve the above problems, the present invention provides a gas plug body provided on a building component facing the room and having a plug portion facing the indoor side from the through hole of the building component, and the through hole from the indoor side. A decorative member that is provided on the building component so as to cover and has a window hole at a position facing the plug portion, and a buried gas plug that is provided on the decorative member and includes a lid that opens and closes the window hole. A cap part that is detachably attached to the plug part and covers at least a distal end surface facing the indoor side of the plug part and a base end part are connected to the cap part, and a distal end part is connected to the gas part. Protective cap for plug of buried type gas plug comprising an elastically deformable connecting portion attached to the plug main body, and a knob having a base end portion connected to the cap portion and a tip portion standing up toward the room. In In addition, the knob portion has a base end portion that can be elastically deformed, so that a folding position is formed so as to be along a surface facing the indoor side of the cap portion from an upright position rising toward the indoor space. It is possible to rotate around the base end of the knob, and a locking mechanism for locking the knob at the folding position is provided between the cap and the knob. It is characterized by.
In this case, the cap portion is formed with a protruding portion that protrudes in the radial direction from the plug portion when the cap portion is attached to the plug, and the base end portion of the knob portion is integrated with the protruding portion. It is desirable to be provided.
The locking mechanism has one or a plurality of locking protrusions and locking holes into which the locking protrusions are removably inserted with a predetermined locking force. It is desirable that the cap portion and the knob portion are provided in either one of the cap portions and the knob holes in the other of the cap portion and the knob portion.
A bent portion that can be bent is formed at the intermediate portion in the longitudinal direction of the knob portion until the proximal end portion and the distal end portion of the knob portion located at the upright position contact each other. Preferably, a second locking mechanism that locks the bent portion in a bent state is provided between the base end portion of the knob portion and the cap portion.
The locking mechanism has a plurality of sets of locking projections and locking holes into which the locking projections are removably inserted with a predetermined locking force, and each set is positioned at the folding position. Are arranged spaced apart from each other in a direction connecting the base end portion and the tip end portion of the knob portion, and the locking projections of each set are provided on one of the cap portion and the knob portion, The locking hole is provided in either one of the cap part and the knob part, and a part on the proximal end side of the knob part located at the upright position is provided at the middle part in the longitudinal direction of the knob part A bendable portion is formed that can be bent until the tip side portion and the portion on the distal end side come into contact with each other, and the bent portion is bent between the base end portion of the knob portion and the cap portion. A second locking mechanism for locking is provided, and the engagement formed on the cap portion is closest to the proximal end portion of the knob portion. It is desirable that the protrusion or the locking hole and the engaging hole or the locking protrusion formed in the knob portion closest to the tip of the knob portion are used as the second locking mechanism. .

In the present invention having the above-described characteristic configuration, when the protective cap is used for the buried type gas stopper in which the plug portion is disposed relatively far away from the surface of the building component facing the room, the knob portion is in the upright position. To be located. Then, since the knob part stands up and its tip part is located on the indoor side, even if the window hole formed in the decorative member is small, the knob part can be easily inserted and grasped with a finger. And a cap part can be removed from a plug part by grasping a knob | pick part and pulling indoors.
On the other hand, when the protective cap is used for the buried gas plug arranged close to the surface of the building component facing the room, the knob is positioned at the folding position. Then, since the knob part is lying down along the surface of the cap part facing the room, when the cover body that opens and closes the window hole of the decorative member is closed, the knob part is connected to the inner peripheral surface of the window hole and the cover body. It is not bitten between. Accordingly, it is possible to prevent the lid from being in a half-open state. Moreover, the cap part attached to the plug part can also be removed from the plug part by grasping the cap part itself and pulling it to the indoor side.
In this way, since the knob can be positioned at the standing position and the folding position, the case where the buried gas plug is arranged away from the surface facing the room of the building component is close to The two usage modes of the case of being arranged can be dealt with by one protective cap. Therefore, the manufacturing cost and management cost of the protective cap can be reduced.

FIG. 1 is a plan view showing a first example of an embedded gas stopper in which the first embodiment of the protective cap for use according to the present invention is used. FIG. 2 is a view taken in the direction of arrow X in FIG. 1 showing the first example attached to the floor board. FIG. 3 is an enlarged cross-sectional view taken along line YY of FIG. 1 showing the first example attached to the floor board. FIG. 4 is a plan view showing the first example in a state in which the cap portion of the protective cap whose lid is opened and the knob is located at the folding position is attached to the plug. FIG. 5 is a sectional view taken along line XX of FIG. 4 showing the first example attached to the floor board. FIG. 6 is a plan view showing the first example in a state in which the cap part of the protective cap in which the lid is opened and the knob part is located at the folding position is removed from the plug part. FIG. 7 is an enlarged cross-sectional view along the line XX of FIG. 6 showing the first example attached to the floor board. FIG. 8 is a plan view showing a first embodiment of a plug protective cap for a buried gas plug according to the present invention in a state where a knob is positioned at an upright position. FIG. 9 is a view taken in the direction of arrow X in FIG. 10 is a view taken in the direction of arrow Y in FIG. FIG. 11 is a cross-sectional view taken along the line ZZ in FIG. FIG. 12 is a plan view showing the first embodiment in a state where the knob is located at the folding position. 13 is a view taken in the direction of arrow X in FIG. FIG. 14 is a view on arrow Y in FIG. 15 is a cross-sectional view taken along the line ZZ in FIG. FIG. 16 shows a cap of a protective cap in which the lid is opened and the knob is located in the upright position, as a second example of the buried gas plug in which the first embodiment of the protective cap according to the present invention is used. It is a top view shown in the state where a part was attached to a plug part. FIG. 17 is an enlarged cross-sectional view taken along line XX of FIG. 16 showing the second example attached to the floor board. FIG. 18: is a top view which shows the 2nd example in the state which opened the cover body and removed the cap part of the protective cap in which the knob | pick part is located in the standing position from the plug part. FIG. 19 is an enlarged cross-sectional view taken along line XX of FIG. 18 showing the second example attached to the floor board. FIG. 20 is a plan view showing a second embodiment of the protective cap according to the present invention in a state where the knob is located at the upright position. FIG. 21 is a view on arrow X of FIG. FIG. 22 is a view on arrow Y in FIG. 23 is a cross-sectional view taken along the line ZZ in FIG. FIG. 24 is a plan view showing the second embodiment in a state where the knob is positioned at the folding position. 25 is a cross-sectional view taken along the line XX of FIG. FIG. 26 is a plan view showing the second embodiment in a state in which the knob portion located at the standing position is bent at the intermediate portion thereof. 27 is a view taken in the direction of arrow X in FIG. FIG. 28 is a sectional view taken along line YY of FIG. FIG. 29 shows a third example of the buried gas plug in which the second embodiment is used, in which the cap portion of the protective cap having the lid closed and the knob portion located in the folding position is plugged. It is sectional drawing shown in the state mounted | worn to. FIG. 30 is a plan view showing the third example in a state where the lid is opened and the cap portion of the protective cap having the knob portion located at the folding position is attached to the plug portion. FIG. 31 is an enlarged cross-sectional view taken along line XX of FIG. 30 showing the third example attached to the floor board. FIG. 32 is a plan view showing the third example in a state where the cap part of the protective cap in which the lid is opened and the knob part is located at the folding position is removed from the plug part. FIG. 33 is an enlarged cross-sectional view taken along line XX of FIG. 32 showing the third example attached to the floor board. FIG. 34 shows a fourth example of the buried type gas stopper in which the second embodiment is used, in which the cap part of the protective cap in which the lid is opened and the knob part is located in the upright position is used as the plug part. It is a top view shown in the state equipped. FIG. 35 is an enlarged sectional view taken along line XX of FIG. 34 showing the fourth example attached to the floor board. FIG. 36 is a plan view showing the fourth example in a state where the cap part of the protective cap in which the lid is opened and the knob part is located in the upright position is removed from the plug part. FIG. 37 is an enlarged cross-sectional view taken along line XX of FIG. 36 showing the fourth example attached to the floor board. FIG. 38 is a plan view showing the fourth example in a state where the cap portion of the protective cap in which the lid is opened and the knob portion positioned in the standing position is bent at the intermediate portion is attached to the plug portion. is there. FIG. 39 is an enlarged cross-sectional view taken along line XX of FIG. 38 showing the fourth example attached to the floor board. FIG. 40 is a plan view showing the fourth example in a state where the cap portion of the protective cap in which the lid is opened and the knob portion positioned in the standing position is bent at the intermediate portion is removed from the plug portion. is there. 41 is an enlarged cross-sectional view taken along the line XX of FIG. 40 showing the fourth example attached to the floor board. FIG. 42 is a plan view showing a third embodiment of the protective cap according to the present invention in a state where the knob is positioned in the upright position. 43 is a view on arrow X of FIG. FIG. 44 is a view on arrow Y in FIG. 45 is a cross-sectional view taken along the line ZZ in FIG. FIG. 56 is a plan view showing the third embodiment in a state where the knob is located at the folding position. 47 is a view on arrow X in FIG. 48 is a view on arrow Y of FIG. 49 is a cross-sectional view taken along the line ZZ in FIG. FIG. 50 is a cross-sectional view similar to FIG. 3 showing a fifth example of the buried gas plug in which the fourth embodiment is used, attached to a floor board. FIG. 51 is a cross-sectional view similar to FIG. 7 showing a fifth example of the buried gas plug in which the fourth embodiment is used attached to a floor board. FIG. 52 is a cross-sectional view similar to FIG. 17 showing a sixth example of the buried gas plug in which the fourth embodiment is used, attached to a floor board. FIG. 53 is a cross-sectional view similar to FIG. 19 showing a sixth example of the buried gas plug in which the fourth embodiment is used, attached to a floor board.

The best mode for carrying out the present invention will be described below with reference to the drawings.
1 to 7 show a first example of an embedded gas plug in which the first embodiment of the plug cap of the embedded gas plug according to the present invention is used. As shown in FIGS. 2, 3, 5, and 7, the buried gas plug 1 of the first example is attached to a horizontal floor board (building component) F. A through hole Fa penetrating the floor plate F up and down is formed. The upper portion of the buried gas plug 1 is accommodated in the through hole Fa. The lower part of the buried gas plug 1 is accommodated in a space C below the floor board F. In the space C, a primary gas pipe G for supplying gas is disposed.

  As is well known, the buried gas plug 1 may be attached to a joist (not shown) that supports the floor board F or a wall board (not shown) facing the room. When the buried gas plug 1 is attached to the wall plate, a through-hole penetrating in the horizontal direction is formed in the wall plate. Moreover, the primary side gas pipe G is arrange | positioned in the space C between a wall board and the outer wall of an outdoor side. Here, the outer wall includes the other of the two wall plates facing each room of the two adjacent rooms.

  The buried gas plug 1 has a casing 2, a mounting plate 3, a decorative plate 4, a gas plug body 5, a connecting pipe 6, and a protective cap 7.

  The casing 2 is made of a metal plate, and is formed in a box shape having an upper portion opened by a peripheral wall portion 2a whose axis is directed in the vertical direction and a bottom wall portion 2b that closes a lower end portion of the peripheral wall portion 2a. Has been. The casing 2 is inserted into the through hole Fa so as to be insertable / removable from the upper end opening. The casing 2 does not necessarily have to be formed in a box shape, and may have another shape structure as long as it can function as a support member that supports a gas stopper main body 5 described later. .

  A mounting plate 3 having a rectangular frame shape is fixed to the upper end of the peripheral wall 2a by a fixing means (not shown) such as a bolt. The mounting plate 3 is formed to be slightly larger than the through hole Fa, and an outer peripheral side portion thereof is annularly mounted on the upper surface of the floor plate F adjacent to the through hole Fa, and fixing means (not shown) such as a wood screw. It is being fixed to the floor board F by. As a result, the casing 2 is fixed to the floor plate F via the mounting plate 3.

  A decorative plate (decorative member) 4 is detachably locked to the mounting plate 3. The decorative plate 4 covers the mounting plate 3, the floor plate F located around the mounting plate 3, and the through hole Fa so as not to be seen from the room I. The decorative plate 4 is formed with a window hole 4a penetrating vertically. The window hole 4a is disposed so as to face the through hole Fa vertically and particularly to face a plug part 5c described later.

  The window 4a is provided with a lid 4b that can be opened and closed between a closed position and an open position. When the lid 4b is located at the closed position, the window hole 4a is closed. When the lid 4b is in the open position, the window hole 4a is opened. When the window hole 4a is opened, the plug portion 5c is exposed to the room I through the window hole 4a.

  A gas stopper body 5 is accommodated in the casing 2. The gas stopper main body 5 is fixed to the bottom wall portion 2 b of the casing 2. The structure for fixing the casing 2 to the bottom wall 2b will be described later.

  A cylindrical portion 5 a protruding in the horizontal direction is formed on one side portion of the gas stopper main body 5. A notch portion 2c is formed in a portion facing the cylindrical portion 5a of the peripheral wall portion 2a of the casing 2, a portion adjacent to the portion in the circumferential direction, and a bottom wall portion 2b corresponding to these portions. . The connection pipe 6 is inserted through the notch 2c.

  The connecting pipe 6 has a downstream portion 6a that is a base end portion thereof and an upstream portion 6b that is a tip end portion thereof. The downstream portion 6a and the upstream portion 6b are bent at a right angle. The downstream portion 6 a enters the inside of the casing 2. On the other hand, the upstream portion 6b is inserted through the notch 2c. Therefore, the tip of the upstream portion 6 b protrudes from the casing 2 into the space C.

  The downstream portion 6a is fitted to the outer peripheral surface of the cylindrical portion 5a so as to be rotatable about its axis. When the downstream portion 6a is rotated, the direction of the upstream portion 6b changes. In this embodiment, it can be changed within a range of at least 90 ° between the state in which the upstream portion 6b faces in the horizontal direction and the state in which the upstream portion 6b faces downward. The connecting pipe 6 may be provided in the cylinder part 5a so as not to rotate.

  A primary gas pipe G is screwed and fixed to the upstream portion 6 b of the connection pipe 6. The upstream portion 6b is provided with a known gas pipe connector, and the primary side gas pipe G made of a flexible gas pipe is operated by one-touch operation, that is, the distal end portion (downstream end portion) of the primary side gas pipe G is a gas pipe. You may comprise so that the primary side gas pipe G may be connected to a gas pipe connection tool only by inserting in a connection tool, and it may connect to the connection pipe 6 by extension.

  Since the connecting pipe 6 is rotatably fitted to the cylindrical part 5a, as shown in FIG. 2, even if the upstream part 6b is oriented in the horizontal direction, the weight of the upstream part 6b and the gas pipe connector 8 and the weight of the primary gas pipe G cause the upstream portion 6b to rotate downward, and as a result, the primary gas pipe G contacts the ground or a floor slab (both not shown). There is a fear. Therefore, in this embodiment, the gas stopper main body 5 is fixed to the bottom wall portion 2b of the casing 2 and at the same time, the connecting pipe 6 is fixed to be non-rotatable.

  That is, as shown in FIG. 2, the gas plug body 5 has a pair of mounting plate portions 5 b. 5b is provided. The pair of mounting plate portions 5b, 5b extend in the horizontal direction, and are disposed on both sides adjacent to the cylindrical portion 5a. The lower surface of the mounting plate portion 5b is located above the lowermost portion of the outer peripheral surface of the downstream portion 6a of the connecting pipe 6 by a slight distance (for example, about 1 mm). Therefore, when the downstream portion 6a is brought into contact with the bottom wall portion 2b of the casing 2, the mounting plate portion 5b is separated upward from the bottom wall portion 2b. In this state, when the bolt B that passes through the attachment plate 5b and is screwed to the bottom wall 2b is tightened, the downstream portion 6a is pressed against the bottom wall 2b. The downstream portion 6a is pressed against the bottom wall portion 2b until the mounting plate portion 5b is pressed against the bottom wall portion 2b. As a result, a recess corresponding to the outer peripheral surface of the downstream portion 6a is formed in the bottom wall portion 2b, and the bottom wall portion 2b and the downstream portion 6a are in surface contact. As a result, the rotation of the downstream portion 6a is prevented. In addition, the pair of mounting plate portions 5b and 5b are brought into pressure contact with the bottom wall portion 2b, and the cylinder portion 5a is brought into pressure contact with the bottom wall portion 2b via the downstream end portion 6a. Is fixed to the bottom wall 2b.

  A plug portion 5 c extending upward is formed on the upper portion of the gas plug body 5. The plug portion 5c is disposed directly below the window hole 4a so that the tip surface thereof faces the window hole 4a. A gas passage 5d penetrating from the distal end surface of the cylindrical portion 5a to the distal end surface (upper end surface) of the plug portion 5c is formed in the gas plug main body 5. A main valve element 5e and a sub-valve element 5f are provided inside the gas passage 5d. As is well known, when a socket (not shown) is attached to the plug portion 5c, the main valve body 5e and the sub valve body 5f move to the open position to open the gas passage 5d. As a result, the gas supplied from the primary side gas pipe G passes through the gas passage 5d and is supplied to a gas device (none of which is shown) through the secondary side gas pipe connected to the socket. When the socket is removed from the plug portion 5c, the main valve body 5e and the sub valve body 5f move to the closed position and close the gas passage 5d. The internal structure of the gas plug main body 5 may be another structure as long as the gas passage 5d is opened when the socket is attached to the plug portion 5c and the gas passage 5d is closed when the socket is removed.

  A button holding member 9 is accommodated in the casing 2. The button holding member 9 is fixed to the gas stopper main body 5 by fixing means (not shown) such as a bolt. The button holding member 9 may be fixed to the bottom wall portion 2 b of the casing 2. The button holding member 9 is provided with a push button 9a that can move in a predetermined range in the vertical direction. When the socket is attached to the plug portion 5c, the push button 9a is moved upward by a predetermined distance from the position shown in FIG. When the push button 9a moved upward is moved downward to the original position, the socket is detached from the plug portion 5c. Since the structure for removing the socket from the plug portion 5c is well known, the description thereof is omitted.

  A protective cap 7 according to the first embodiment of the present invention is attached to the button holding member 9. The protective cap 7 may be attached to the casing 2 or may be attached to the gas stopper main body 5. The protective cap 7 is made of a relatively hard rubber or other resin having elasticity, and has a cap portion 7a, a connecting shaft portion 7b, and a knob portion 7c, as shown in FIGS.

  The cap part 7a has a disk shape, and its outer diameter is slightly larger than the outer diameter of the upper end part of the plug part 5c. If the outer diameter of the cap portion 7a is larger than the outer diameter of the upper end surface of the annular projecting portion 5g formed on the upper end surface of the plug portion 5c, it is slightly smaller than the outer diameter of the upper end portion of the plug portion 5c. Also good. This is because it is only the tip surface of the annular projecting portion 5g that comes into pressure contact with the packing provided in the socket, and the cap portion 7a only needs to be able to prevent at least the dust from adhering to the tip surface.

A press-fit shaft portion 7d is formed on the lower surface of the cap portion 7a. The press-fit shaft portion 7d is arranged so that its axis line coincides with the axis line of the cap portion 7a. The outer diameter of the press-fit shaft portion 7d is set to be slightly larger than the inner diameter of the gas passage 5d at the upper end portion of the plug portion 5c. Therefore, the press-fit shaft portion 7d is inserted in a press-fit state into the upper end opening of the gas passage 5d. In the inserted state, the cap portion 7a is maintained in a state where it is attached to the plug portion 5c by the frictional resistance generated between the outer peripheral surface of the press-fit shaft portion 7d and the inner peripheral surface of the gas passage 5d. And the cap part 7a is maintained in the state which the lower surface contacted the upper end surface of the cyclic | annular protrusion part 5g.

An annular recess 7e is formed on the lower surface of the cap portion 7a. The annular recess 7e extends annularly around the press-fit shaft portion 7d so that its inner peripheral portion is in contact with the press-fit shaft portion 7d. The cross-sectional shape of the annular recess 7e is substantially the same as the cross-sectional shape of the upper end of the annular protrusion 5g of the plug portion 5c. When the cap portion 7a is attached to the plug portion 5c, the annular protrusion 5g The upper end surface of the annular protrusion 7e is brought into contact with the bottom surface of the annular recess 7e, and the upper portion of the outer peripheral surface of the annular protrusion 5g is brought into contact with the inner peripheral surface located outside the annular recess 7e. As a result, dust or the like is prevented from adhering not only to the upper end surface of the annular protrusion 5g but also to the upper part of the outer peripheral surface of the annular protrusion 5g.

A base end portion of the connecting shaft portion 7b is integrally provided on one side portion of the outer peripheral surface of the cap portion 7a. The connecting shaft portion 7b extends in the radial direction of the cap portion 7a, and an attachment portion 7f having a tapered truncated cone shape is formed at the distal end portion thereof. The attaching portion 7f is engaged with an engaging portion such as an engaging hole or an engaging recess provided in the button holding member 9 so as not to be detached. The engaging portion may be provided in the casing 2 or the gas stopper main body 5 so that the connecting shaft portion 7 b is attached to the casing 2 or the gas stopper main body 5.

When the connecting shaft portion 7b is attached to the button holding member 9, when the connecting shaft portion 7b is in a natural state, that is, when no external force is applied to the connecting shaft portion 7b, the cap portion 7a is The plug portion 5c is configured to be spaced apart in the radial direction. Therefore, when the cap portion 7a is attached to the plug portion 5c, the connecting shaft portion 7b is elastically deformed. On the contrary, when the cap 7a is attached to the plug portion 5c, the connecting shaft portion 7b may be in a natural state without deformation. However, in that case, when the cap part 7a is detached from the plug part 5c and the socket is attached to the plug part 5c, the cap part 7a is positioned immediately above the plug part 5c, so that the cap part 7a is not attached. Get in the way. In order to prevent the cap portion 7a from interfering with the mounting operation, the cap portion 7a needs to be separated from the plug portion 5c in the radial direction, which requires time and effort. Therefore, it is desirable to configure as in this embodiment.

A projecting portion 7g is integrally formed on the outer peripheral surface of the cap portion 7a. The protruding portion 7g is disposed on the side opposite to the connecting shaft portion 7b and protrudes in the radial direction from the cap portion 7a. The projecting amount of the projecting part 7g is determined so that at least the tip part in the projecting direction of the projecting part 7g projects in the radial direction from the outer peripheral surface of the upper end part of the plug part 5c. In particular, in this embodiment, by hooking a finger on the lower surface of the protruding portion 7g and lifting it upward, the press-fit shaft portion 5d can be extracted from the gas passage 5d and the cap portion 7a can be removed from the plug portion 5c. The protruding amount of the protruding portion 7g is determined.

A knob 7c is integrally formed at the tip of the protruding portion 7g. The knob 7c is formed in a flat plate shape. The knob 7c may be formed in a rod shape. When the knob portion 7c is in a natural state where no external force acts on the knob portion 7c, the knob portion 7c stands up at a right angle to the cap portion 7a. Moreover, the knob 7c extends toward the opposite side of the press-fit shaft 7d. Hereinafter, the position of the knob 7c at this time is referred to as an upright position. Therefore, when the cap portion 7a is attached to the plug portion 5c, the knob portion 7c rises upward in parallel with the plug portion 5c. As a result, the upper end portion of the knob portion 7c is located above the plug portion 5c, and is closer to the window hole 4a by that amount.

  A thin portion 7h having a thickness smaller than that of the vicinity thereof is formed at the connecting portion between the base end portion of the knob portion 7c and the protruding portion 7g. By forming the thin portion 7h, the base end of the knob portion 7c is arranged such that the upper end portion of the knob portion 7c positioned at the standing position rotates counterclockwise in FIG. 9 and approaches the cap portion 7a. The part can be bent elastically. The base end portion of the knob portion 7c can be bent at least in a range of 90 °, and when the base end portion of the knob portion 7c located at the standing position is bent by approximately 90 °, the knob portion 7c is brought into the upper surface of the cap portion 7a. Will be in surface contact. Hereinafter, the position of the knob 7c at this time is referred to as a folding position.

  When the knob portion 7c located at the folding position is brought into a state where it can move freely, the base end portion thereof elastically returns and deforms to rotate to the standing position. In order to maintain the knob portion 7c in the folded position, two locking projections 7i are formed on the upper surface of the cap portion 7a. The two locking projections 7i are arranged away from each other in the radial direction of the cap portion 7a and in the longitudinal direction of the knob portion 7c which is also located at the folding position. On the other hand, two locking holes 7j are formed in the knob 7c. And the latching protrusion 7i is each press-fit in each latching hole 7j, and the knob | pick part 7c is maintained in the folding position. When the distal end portion (left end portion in FIGS. 12 to 15) of the knob portion 7a is lifted and the locking protrusion 7i is extracted from the locking hole 7j, the knob portion 7c is moved from the folding position to the standing position by the elasticity of the base end portion. Return.

The locking projection 7i and the locking hole 7j may be arranged in the reverse relationship. That is, the locking hole 7j may be formed on the upper surface of the cap portion 7a, and the locking protrusion 7i may be formed on the knob portion 7c. However, when the locking hole 7j is formed on the upper surface of the cap portion 7a, the locking hole 7j is formed as a blind hole. This is because if it is a through hole, dust or the like enters from the locking hole and the dust may adhere to the plug portion 5c. Further, only one set of the locking projections 7i and the locking holes 7j may be formed, or three or more sets may be formed. Any one of the locking projections 7i and the locking holes 7j of each set may be formed on the cap portion 7a, and any other may be formed on the knob portion 7c. Even if the locking projection 7i and the locking hole 7j are formed so that the locking projection 7i is inserted into the locking hole 7i with a click feeling without pressing the locking projection 7i into the locking hole 7j. Good.

The protective cap 7 can be molded by various known molding methods. At the time of molding, the knob 7c may be molded in a state where the knob 7c is in the standing position, or the knob 7c is molded in a state where the knob 7c extends in the radial direction, and then the knob 7c is positioned in the standing position. The base end portion of the knob portion 7c may be heated and deformed.

  As shown in FIGS. 2, 3, 5, and 7, the embedded gas plug 1 having the above-described configuration, which is a first example of the embedded gas plug, has an upper end of the plug portion 5 c approaching the upper surface of the floor plate F. Also arranged. When the buried gas plug 1 is not used, that is, when a socket is not attached to the plug portion 5c, as shown in FIG. 3, the plug portion 5c is attached to the cap portion 7a, and the lower surface of the cap portion 7a is plugged. It is made to contact the upper surface of the cyclic | annular protrusion part 5g of the part 5c. More precisely, the bottom surface and the outer inner peripheral surface of the annular recess 7e are brought into contact with the upper end surface and the outer peripheral surface of the annular protrusion 5g, respectively. This prevents dust and the like from adhering to the upper surface of the annular protrusion 5g (the tip surface of the plug portion 5c) and the outer peripheral surface in the vicinity thereof.

Further, in the embedded gas plug 1, the knob 7c is positioned at the folding position. If it does in this way, the knob | pick part 7c will not penetrate the window hole 4a and protrude upwards. Therefore, when the lid 4b is closed, the knob 7c is not caught between the outer peripheral surface of the lid 4b and the inner peripheral surface of the window hole 4a. Therefore, the lid 4b is not half-opened, and the window hole 4a can be reliably closed by the lid 4b.

  When the buried gas plug 1 is used, that is, when a socket is connected to the plug portion 5c, the lid 4b is opened as shown in FIG. Next, as shown in FIG. 7, the cap part 7a is removed from the plug part 5c. In this removal, since the protruding portion 7g protrudes in the radial direction from the outer peripheral surface of the plug portion 5c, a finger is inserted through the window hole 4a, and the lower surface of the protruding portion 7g is pushed upward with the finger, and the press-fitting shaft portion 7d is moved. This can be done by extracting from the upper end opening of the gas passage 5d. Or after opening the cover body 4b, the knob | pick part 7c can be located in an upright position, the upper end part can be pulled upwards, and, thereby, the cap part 7a can also be removed from the plug part 5c. In addition, when pulling the knob | pick part 7c and removing the cap part 7a from the plug part 5c, after removing a socket from the plug part 5c, the cap part 7a is mounted | worn with the plug part 5c. Next, the knob portion 7c is folded from the standing position to the folding position. Thereafter, the lid 4b is positioned at the closed position.

  Next, another embodiment of the present invention will be described. In addition, regarding the following embodiment, only a different structure from the said embodiment is demonstrated, and the same code | symbol is attached | subjected to the part similar to the said embodiment, and the description is abbreviate | omitted.

  16 to 19 show a second example of the buried type gas stopper in which the protective cap according to the present invention is used. This embedded gas plug 1A of the second example is different from the embedded gas plug 1 of the first example in that the depth of the casing 2 is deeper than the casing 2 of the above embodiment. Since the depth of the casing 2 is deep, the gas plug main body 5 is greatly separated downward from the upper surface of the floor board F as compared with the case of the buried gas plug 1 of the first example, and the plug portion 5c is further expanded to the upper surface of the floor board F. It is greatly spaced downward from.

Further, since the casing 2 is deep, the upper surface of the push button 9a is also greatly separated from the floor plate F downward. For this reason, it is difficult for the push button 9a to be pushed down by a finger inserted through the window hole 4a. In order to eliminate such inconvenience, the sub button 9b is placed on the push button 9a, and the push button 9a is pushed down via the sub button 9b. Thereby, the push button 9a can be pushed down easily. Other configurations are substantially the same as the buried gas plug 1 of the first example.

  In the buried type gas plug 1A of this example, the protective cap 7 is used in a state where the knob 7c is always located at the standing position. Since the plug portion 5c is greatly separated downward from the upper surface of the floor plate F, even if the knob portion 7c is always positioned in the standing position, the knob portion 7c is positioned on the outer peripheral surface of the lid body 4b and the inner periphery of the window hole 4a. This is because there is no possibility of being caught between the surfaces. Therefore, it can prevent reliably that the cover body 4b will be in the half-open state. Moreover, since the knob portion 7c stands up and its upper end portion is positioned close to the window hole 4a, the upper end portion of the knob portion 7c can be easily grasped with a finger inserted from the window hole 4a. And the cap part 7a can be easily removed from the plug part 5c by pulling the knob part 7c upward. As shown in FIG. 19, the cap part 7a removed from the plug part 5c is inserted between the peripheral wall part 2a of the casing 2 and the sub push button 9b. After the cap portion 7a is removed from the plug portion 5c, a socket is attached to the plug portion 5c, and the embedded gas plug 1A is used.

  After the use of the buried gas plug 1A is completed, the socket is removed from the plug portion 5c. Thereafter, the cap portion 7a is attached to the plug portion 5c. At this time, if the cap portion 7a is positioned directly above the plug portion 5c with the press-fit shaft portion 7d aligned with the axis of the plug portion 5c, the plug portion can be simply moved downward by pushing the cap portion 7a downward. 5c can be attached. This is advantageous when the plug portion 5c is greatly separated from the upper surface of the floor board F downward. This is because, if the plug portion 5c is largely separated from the floor plate F, it is difficult to handle the cap portion 7a freely. Therefore, in the protective cap 7 used in the buried gas plug 1A of this example, when the cap portion 7a is removed from the plug portion 5c and the connecting shaft portion 7b is in a natural state, the cap portion 7a It is desirable to be configured to be positioned directly above the plug portion 5c in a state where the axis line coincides with the axis line of the plug portion 5c. After the cap portion 7a is attached to the plug portion 5c, the lid 4b is closed.

  20 to 28 show a second embodiment of the protective cap according to the present invention. In the protective cap 7A of this embodiment, second and third thin portions 7k and 7l are formed in the knob portion 7c. The 2nd thin part 7k is formed in the surface facing the upper surface of the cap part 7a, when the knob | pick part 7c is located in a folding position. The third thin portion 7l is formed on a surface facing the opposite side to the surface on which the second thin portion 7k is formed. The second and third thin portions 7k and 7l cross the knob portion 7c in the width direction. Therefore, the knob portion 7c can be bent at the second and third thin portions.

  As shown in FIG. 28, the second thin portion 7k can be bent by at least 180 °, and when the knob portion 7c positioned at the standing position is bent by approximately 180 ° at the second thin portion 7k, the second thin portion The portion located above 7k contacts the portion located below the second thin portion 7k. As a result, the height of the knob portion 7c becomes the height from the base end portion to the second thin portion 7k, and the height of the knob portion 7c becomes low.

The distance from the base end portion of the knob portion 7c to the second thin portion 7k is shorter than half of the height of the knob portion 7c (the height from the base end portion to the upper end of the knob portion 7c), and the knob portion 7c. Is bent at the second thin portion 7k, the distance is set so that the third thin portion 7l contacts the upper surface of the cap portion 7a. Therefore, when the knob portion 7c is bent by approximately 90 ° in the third thin portion 7l, when the knob portion 7c is located in the upright position, the portion located above the third thin portion 7l is located on the upper surface of the cap portion 7a. Get in touch. In addition, in this state, when the knob portion 7c is located at the upright position, the locking protrusion 7i disposed close to the knob portion 7c is press-fitted into the locking hole 7j located on the upper side. As a result, the knob portion 7c located at the standing position is maintained in the bent state at the second and third thin portions 7k and 7l. As is clear from this, the second locking mechanism is configured by the locking hole 7j located on the upper side when positioned in the standing position and the locking projection 7i disposed in the vicinity of the knob 7c. Yes. In addition, the state when the knob | pick part 7c is bent in the 2nd and 3rd thin parts 7k and 7l is called a bending state.

FIGS. 29-34 shows the 3rd example of the buried type gas stopper in which the protective cap based on this invention was used. The buried gas plug 1B according to the third example is configured in the same manner as the buried gas plug 1 of the first example, except that a protective cap 7A is used instead of the protective cap 7. Therefore, the knob portion 7c of the protective cap 7A is positioned at the folding position, and the cap portion 7a is attached to the plug portion 5c in the same manner as the cap portion 7a of the buried gas plug 1 of the first example. Can be removed.

  35 to 41 show a fourth example of the buried type gas stopper in which the protective cap according to the present invention is used. The embedded gas plug 1C of the fourth example is configured in the same manner as the embedded gas plug 1A of the second example, except that a protective cap 7A is used instead of the protective cap 7. Therefore, the protective cap 7A can be used in a state where the knob portion 7c is always located at the upright position, as shown in FIGS. 35 to 37, 40 and 41. Further, as shown in FIGS. 38 and 39, the protective cap 7A can be used with the knob 7c folded. The usage pattern like this is when the depth of the casing 2 is an intermediate depth between the depth of the casing 2 of the first example and the third example and the depth of the casing 2 of the second example and the fourth example. It is suitable for. Thus, in this embodiment, the height of the knob 7c of the protective cap 7A can be adjusted in accordance with the distance between the floor board F and the plug 5c. Therefore, it is easy to use.

  42 to 49 show a third embodiment of the protective cap according to the present invention. In the protective cap 7B of this embodiment, the thickness of the cap portion 7a is increased by a predetermined dimension (for example, about 3 mm) downward. A fitting hole 7m is formed on the lower surface of the cap portion 7a so that its axis coincides with the axis of the cap portion 7a. The fitting hole 7m has an end on the bottom side formed in the same shape as the annular projecting portion 5g of the plug portion 5c. Therefore, when the plug portion 5c is inserted into the fitting hole 7m, the upper surface and the outer peripheral surface of the annular projecting portion and the upper end surface of the plug portion 5c come into contact with the inner surface on the bottom side of the fitting hole 7m. The lower end portion of the fitting hole 7m is formed as a straight hole portion, and the inner diameter of the straight hole portion is slightly smaller than the outer diameter of the straight portion following the annular projecting portion 5g of the plug portion 5c. Yes. Therefore, when the upper end portion of the plug portion 5c is inserted into the fitting hole 7m, the outer peripheral surface of the plug portion 5c continuing below the annular projecting portion 5g is fitted into the straight portion of the fitting hole 7m in a press-fit state. As a result, the inner peripheral surface of the lower end portion of the fitting hole 7m and the outer peripheral surface of the plug portion 5c are in close contact with each other over the entire periphery. Accordingly, dust or the like does not enter the fitting hole 7m from between the inner peripheral surface of the lower end portion of the fitting hole 7m and the outer peripheral surface of the plug portion 5c. Thereby, it can prevent reliably that a dust etc. adhere to the upper surface and outer peripheral surface of 5 g of annular protrusions. Other configurations are the same as those of the protective cap 1 of the first embodiment.

  50 and 51 show a fifth example of an embedded gas stopper in which the protective cap according to the present invention is used. The buried gas plug 1D of the fifth example is configured in the same manner as the buried gas plug 1 of the first example, except that a protective cap 7B is used instead of the protective cap 7. Therefore, the knob portion 7c of the protective cap 7B is positioned at the folding position, and the cap portion 7a is attached to the plug portion 5c in the same manner as the cap portion 7a of the buried gas plug 1 of the first example. Can be removed.

  52 and 53 show a sixth example of the buried type gas stopper in which the protective cap according to the present invention is used. The embedded gas plug 1E of the sixth example is configured in the same manner as the embedded gas plug 1A of the second example, except that a protective cap 7B is used instead of the protective cap 7. Therefore, the knob 7c of the protective cap 7E is always located at the standing position. The cap part 7a can be attached to and detached from the plug part 5c in the same manner as the cap part 7a of the embedded gas plug 1A of the second example.

F Floor board (building material)
Fa Through-hole I Indoor 1 Embedded gas stopper 1A Embedded gas stopper 1B Embedded gas stopper 1C Embedded gas stopper 1D Embedded gas stopper 1E Embedded gas stopper 4 Decorative plate (decorative member)
4a Window hole 4b Lid 5 Gas stopper body 5c Plug part 7 Protection cap 7A Protection cap 7B Protection cap 7a Cap part 7b Connection shaft part (connection part)
7c Knob 7g Projection 7i Locking projection (Locking mechanism; second locking mechanism)
7j Locking hole (Locking mechanism; second locking mechanism)
7k 2nd thin part (folded part)

Claims (5)

Provided in the building component facing the room, a gas plug body having a plug portion facing the indoor side from the through hole of the building component, provided in the building component so as to cover the through hole from the indoor side, A decorative member having a window hole at a location facing the plug portion, and an embedded gas stopper provided on the decorative member and provided with a lid for opening and closing the window hole,
A cap part that is detachably attached to the plug part and covers at least a distal end surface facing the indoor side of the plug part and a base end part are connected to the cap part, and a distal end part is attached to the gas plug body. In a protective cap for a plug of an embedded gas plug comprising: an elastically deformable connecting portion; a base end portion connected to the cap portion; and a knob portion standing upright so that a distal end portion faces the room;
The knob is elastically deformable at its base end, so that the gripping part extends from an upright position standing toward the room to a folded position where the cap part is bent along the surface facing the room side. It can be rotated around the base end of the knob,
An embedded type gas stopper plug protective cap, wherein a locking mechanism for locking the knob at the folding position is provided between the cap and the knob. The cap portion is formed with a protruding portion that protrudes in a radial direction from the plug portion when the cap portion is attached to the plug, and a base end portion of the knob portion is integrally provided on the protruding portion. The embedded protective cap for a plug of an embedded gas plug according to claim 1. The locking mechanism has one or a plurality of locking protrusions and locking holes into which the locking protrusions are removably inserted with a predetermined locking force. The one or more of the said cap part and the said knob | pick part, The said locking hole of each group is provided in either one of the said cap part and the said knob | pick part, or 1 characterized by the above-mentioned. The protective cap for plugs of the buried gas plug according to 2. A bent portion that can be bent is formed at the intermediate portion in the longitudinal direction of the knob portion until the proximal end portion and the distal end portion of the knob portion located at the upright position contact each other. 2. A second locking mechanism that locks the bent portion in a bent state is provided between the base end portion of the knob portion and the cap portion. The protective cap for plugs of the buried gas plug according to any one of? The locking mechanism has a plurality of sets of locking projections and locking holes into which the locking projections are removably inserted with a predetermined locking force, and each set is positioned at the folding position. Are arranged spaced apart from each other in a direction connecting the base end portion and the tip end portion of the knob portion, and the locking projections of each set are provided on one of the cap portion and the knob portion, The locking hole is provided on either the cap part or the knob part,
A bent portion that can be bent is formed at the intermediate portion in the longitudinal direction of the knob portion until the proximal end portion and the distal end portion of the knob portion located at the upright position contact each other. And a second locking mechanism for locking the bent portion in a bent state is provided between the base end portion of the knob and the cap portion,
The locking projection or the locking hole formed in the cap portion closest to the proximal end portion of the knob portion, and the engagement formed in the knob portion closest to the distal end portion of the knob portion. The plug or protective cap for plugs of an embedded type gas plug according to claim 1 or 2, wherein a hole or the locking projection is used as the second locking mechanism.

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