JP5961587B2 - Cosmetic cover mounting structure - Google Patents

Description

  The present invention relates to a mounting structure for a decorative cover for covering a through hole formed in a wall from the front when a built-in wall body is arranged so that at least a part thereof is located inside a wall of a building or the like.

  Conventionally, a wall built-in body is embedded in a wall so that at least a part of a lifeline connection portion for connecting various devices to a lifeline such as electricity, gas, and water is located inside a wall of a building or the like It is. As an example of this wall built-in body, there is a wall built-in water tap for supplying water to a washing machine or the like. As this wall built-in faucet, those having various structures have been proposed, and an example thereof is described in Patent Document 1 relating to the application of the present applicant (the basic configuration of the wall built-in faucet will be described). For convenience, FIG. 7 shows a structure described as a conventional example in Patent Document 1).

  The wall built-in water faucet has, as a basic configuration, a water faucet body 101 that is connected to the water supply pipe 100 inside the wall and can be switched between a water flow state and a water stop state, and the water faucet body 101 is fixed inside the wall. For this purpose, there are provided a box portion 102 having a front surface opened, and a substantially plate-shaped decorative cover 103 that is positioned in front of the faucet body and the box portion and abuts against the wall surface of the building.

  The decorative cover 103 includes a locking claw 104 on the rear surface. The decorative cover 103 is attached to the box portion 102 by the locking claws 104.

  However, such attachment by the locking claw 104 can bring the wall surface and the decorative cover 103 into close contact with each other, for example, when the box portion 102 is attached forward relative to the design position inside the wall. In some cases, there was a gap between the two or rattling. In addition, the decorative cover 103 may be warped. For this reason, there was room for improvement in workability on site.

Japanese Patent No. 4603334

  Then, this invention makes it a subject to provide the attachment structure of the decorative cover which improved the workability in the field.

  The present invention provides a decorative cover mounting structure for covering a through-hole formed in a wall from the front when arranging the built-in wall so that at least a part thereof is positioned inside the wall. The decorative cover mounting structure includes an engaging protrusion that protrudes into the wall and engages with the wall surface, and holding means that maintains the engagement state of the decorative cover with the wall surface.

  According to the above configuration, the engagement protrusion that protrudes rearward from the decorative cover and engages with the wall surface is combined with the holding means that holds the engagement state of the decorative cover with the wall surface. For this reason, engagement with the wall surface of the engagement protrusion is secured by the holding means. Therefore, positioning of the decorative cover with respect to the wall surface is easy, and displacement of the decorative cover with respect to the wall surface can be suppressed.

  Moreover, the said engagement protrusion can be made to protrude from the rear surface of the said decorative cover over the perimeter in the outer periphery of the said decorative cover. According to the said structure, the said decorative cover can be engaged with a wall surface over the perimeter. Therefore, it is possible to effectively suppress the vertical and horizontal shifts of the decorative cover with respect to the wall surface.

  Further, the engagement protrusion can have a cross-sectional shape with a cross-sectional area that decreases toward the rear. According to the said structure, it is possible to make the said engagement protrusion bite into a wall surface. Therefore, the shift | offset | difference of the decorative cover with respect to a wall surface can be suppressed effectively.

Further, the engaging said cross-section shape of the engagement projection, the angle formed between the outer side and an inner side surface of the rear end portion of the engaging protrusion can a 30 ° to 90 ° shape. Further, the engaging protrusion may have a width dimension at the rear end of 0.5 mm or more and 1.5 mm or less.

  The holding means may be means for pressing the decorative cover backward. According to the above configuration, the holding means can effectively press the decorative cover.

  Further, the holding means can be means capable of performing the backward pressing by screwing. According to the said structure, a decorative cover can be pressed using the general machine element using screwing.

  Moreover, the said holding means can be equipped with the screw part formed in the member arrange | positioned inside the wall of a building among the said built-in bodies, and the screw member which can be screwed together in the said screw part. According to the said structure, a decorative cover can be pressed using the general mechanical element called the combination of a screw part and a screw member.

  The present invention can easily position the decorative cover with respect to the wall surface, and can suppress the displacement of the decorative cover with respect to the wall surface. For this reason, the attachment structure of the decorative cover which improved the workability on the spot can be provided.

It is a perspective view which shows the state attached to the wall which shows one Embodiment of a water faucet with a built-in wall. It is a front view which shows the same embodiment. It is the front view which notched and showed the same embodiment. It is a longitudinal cross-sectional view of the notch in the aa position of FIG. 3 which shows the same embodiment. It is a longitudinal cross-sectional view in the bb position of FIG. 3 which shows the same embodiment. The main body is shown among the trunk | drums in the same embodiment, (A) is a left side view, (B) is a front view, (C) is a rear view of a partially cutout, and (D) is a cc position of (B). FIG. It is a perspective view which shows the attachment point to the wall of the water faucet with a built-in wall concerning the embodiment. It is a disassembled perspective view which shows the conventional water faucet with a built-in wall.

  First, as an embodiment, the present invention will be described by taking up a built-in faucet embedded in a wall of a building such as a house in order to supply water to a washing machine or the like. The expression of the direction in the following is based on the direction when the water faucet built in the wall is installed on the wall surface W as shown in FIG. 1, and the direction toward the front with respect to the wall surface is “front” and the direction toward the back is “rear”. And Further, “up / down / left / right” is a direction viewed from a position facing the wall surface. Needless to say, the present invention is not limited to the embodiment in the direction described below.

  The wall built-in faucet C of this embodiment is attached to the wall W as shown in FIG. 1, and mainly includes a box part 1, a body part (a faucet body) 2, a decorative cover 3, a handle 4, and a hose. A hook portion 5 is formed, and various members are attached to the respective portions.

  The box 1 is a box made of hard resin, and as shown in FIGS. 3 to 5, the upper surface 111, the rear surface 112, the left surface 113, and the right surface 114 are closed, and the lower surface and the front surface are opened. Shape. A rib (not shown) is formed on the outer surface of the box portion 1 to enhance the rigidity. For this reason, in order to support wall board material B, such as a gypsum board, the box part 1 can be reliably fixed to the square material L installed in the inside of the wall W, and the body part with respect to the box part 1 2 can be securely fixed. The square bar L is wood in this embodiment, but may be a light steel frame or resin. A rib 16 extending in the left-right direction is formed on the inner surface of the rear surface portion 112 integrally with a slide rail portion 15 described later. By forming this rib, the rigidity of the rear surface portion 112 can be increased and the occurrence of bending can be suppressed.

  In addition, the upper surface portion 111, the left surface portion 113, and the right surface portion 114 are formed with two screw mounting holes 12 for each portion. The screw attachment hole 12 is a long hole that is long in the front-rear direction. Normally, the box fixing screw S1 is screwed and the box portion 1 is fixed in a state where the outer surface of one of the left surface portion 113 and the right surface portion 114 and the upper surface portion 111 is in contact with the square member L located inside the wall W. Is made. However, the box portion 1 may be fixed in a state where only one of the left surface portion 113 and the right surface portion 114 or only the upper surface portion 111 is in contact with the square member L.

  In addition, among the inner surfaces of the upper surface portion 111, the left surface portion 113, and the right surface portion 114, the portion corresponding to the portion where the screw mounting hole 12 is formed in the front-rear direction is a flat surface that protrudes inward sequentially from the front toward the rear. A tapered surface 13 is formed. The tapered surface 13 is a surface that is substantially orthogonal to the design mounting direction (axial direction) of the box fixing screw S1. The box fixing screw S1 is attached obliquely rearward from the inside of the box part 1, and is screwed by a tool T such as an electric screwdriver inserted from the front part opened at the box part 1, as shown in FIG. Made. As a result, the fixing screw S1 is attached so that the axial direction is inclined with respect to the front-rear direction, as shown in FIG. By forming the tapered surface 13 on the inner surface of the box portion 1, it is possible to prevent the head portion of the inclined box fixing screw S <b> 1 from coming into contact with the inner surface of the box portion 1, and Can be contacted (line contact or surface contact). For this reason, during the screwing operation with the tool T, the force from the box fixing screw S1 acts unevenly on the box part 1, so that the box part 1 is displaced and attached to the square member L, or the box fixing screw S1 is attached. It is possible to effectively suppress the occurrence of wobbling in the box portion 1 in a state of being damaged.

  Further, a positioning projection 14 is formed at the position of the front side end portion of the outer surfaces of the upper surface portion 111, the left surface portion 113, and the right surface portion 114. As shown in FIG. 3, the positioning protrusion 14 has a longitudinal cross-sectional shape that is a right-angled triangle, and as shown in FIG. 4, the longitudinal cross-sectional shape becomes smaller toward the rear. The front surface 141 of the positioning protrusion 14 is at the same position as the front surface of the box portion 1.

  When the box portion 1 is fixed to the square member L (see FIG. 7) embedded in the wall W of the building, the positioning projection 14 is caught by the front corner portion of the square member L. In this state, the box portion 1 can be fixed to the square member L by screwing the box fixing screw S1 into the screw mounting hole 12. Since the square member L is relatively softer than the positioning protrusions 14, the positioning protrusions 14 sink into the corners of the square member L as the box fixing screw S <b> 1 is screwed. Here, when the box fixing screw S1 is attached to be inclined with respect to the box portion 1, the positioning projection 14 is caught by the square member L, although a force is exerted on the box portion 1 to shift backward. Thus, the displacement of the box portion can be effectively suppressed. For this reason, it can attach easily so that the front surface of the box part 1 may correspond with the front surface of the square L substantially. Further, as shown in FIG. 7, the operator can position the box part 1 with respect to the square bar L only by holding the box part 1 with the left hand, for example. Therefore, in this case, the operator can perform the screwing operation of the box fixing screw S1 by operating the tool T while only supporting the tool T with the right hand. As described above, in the present embodiment, since the positioning protrusion 14 is formed on the box portion 1, the workability for fixing the box portion 1 can be improved.

  As shown in FIGS. 3 to 5, the slide rail portion 15 protrudes on the inner surfaces of the left surface portion 113 and the right surface portion 114 in the box portion 1 so as to extend in the front-rear direction. The slide rail portion 15 constitutes one set of the left surface portion 113 side and the right surface portion 114 side. The slide rail portion 15 is formed corresponding to the adjustable range in the front-rear direction of the body portion 2. In the present embodiment, one set of slide rail portions 15 is formed on the upper side and one set on the lower side. And in this embodiment, the slide receiving part 24 of the trunk | drum 2 is attached to one set of slide rail parts 15 formed upward. The slide rail portion 15 formed below is not used for the body portion 2 of the present embodiment, and the box portion 1 is installed upside down with respect to the present embodiment to supply water from above. It is used when attaching the body part 2 made. Of the slide rail portion 15, the one formed at the top has a vertical cross-sectional shape that is constant in the front-rear direction and is formed by cutting an ellipse in the minor axis direction, with the upper and lower surfaces being horizontal surfaces, The side surface is a curved surface (Ru surface). A screw arrangement groove 151 extending in the front-rear direction is formed on the lower surface of the slide rail portion 15. In addition, the longitudinal cross-sectional shape of what was formed below among the slide rail parts 15 is a vertically symmetrical shape with respect to what was formed above. The slide receiving portion 24 of the body portion 2 is positioned along both the horizontal surface and the curved surface portion in the longitudinal cross-sectional shape, and the front end of the body fixing screw S2 attached to the body portion 2 is the screw arrangement groove portion 151. It touches the bottom of the.

  Next, the trunk | drum 2 is demonstrated. As shown in FIGS. 4 to 6 (FIG. 6 shows only the main body (casting portion)), the body portion 2 is made of a copper alloy (in this embodiment, a copper casting), and includes an inlet portion 21, a valve mechanism portion. 22, an outlet 23, and a slide receiver 24. The flow path 25 through which water passes in the trunk portion 2 is formed so as to extend upward from the inlet portion 21, turn downward after passing through the valve mechanism portion 22, and extend obliquely downward and forward from the outlet portion 23. That is, the valve mechanism portion 22 is positioned on one side (upper side in the present embodiment) of the body portion 2, and the inlet portion 21 and the outlet portion 23 are on the other direction side (lower side in the present embodiment) of the body portion 2. Is located. As shown in FIG. 5 and FIG. 6D, the center in the front-rear direction of the inlet-side channel 251 extending upward from the inlet 21 in the channel 25 is relative to the center in the front-rear direction of the inlet 21. It is shifted backward. Further, the center in the front-rear direction of the outlet-side channel 252 that is downstream of the valve mechanism 22 and extends downward is shifted forward with respect to the center in the front-rear direction of the inlet 21. That is, in the water flow space in the inlet side flow path 251 and the outlet side flow path 252, the width direction dimension in the transverse section (cross section orthogonal to the water passage direction) is longer than the front and rear direction dimensions, and the front and rear direction dimensions in the transverse section. Is shorter than the dimension in the front-rear direction in the cross section orthogonal to the water flow direction of the water flow space in the inlet portion 21 (the width direction dimension (shown in FIG. 6C for the water flow space of the inlet channel 251). (See the horizontal dimension on FIG. 6C) and the front-rear dimension shown in FIG. 6D (the horizontal dimension on FIG. 6D). For this reason, the inlet-side channel 251 and the outlet-side channel 252 are in a relationship of being stacked in the front-rear direction. Due to this relationship, the body 2 can be made compact. Therefore, the wall built-in hydrant C can be easily installed even on a wall W having a relatively small thickness compared to a single-family house, particularly in an apartment or an apartment.

  The inlet-side channel 251 is formed so as to extend linearly in a section from the inlet 21 to the valve mechanism 22. And the exit side flow path 252 is formed so that it may extend linearly in the area from the valve mechanism part 22 to the exit part 23. With these configurations, it is possible to contribute to reducing the loss head in the trunk portion 2.

  The body 2 has a rear surface that is substantially flat and has a shape that does not protrude rearward. For this reason, when attaching the trunk | drum 2 to the box part 1, the distance of the rear surface of the trunk | drum 2 and the rear-surface part 112 of the box part 1 can be made small. Therefore, it is possible to contribute to the downsizing of the wall-mounted faucet C in the front-rear direction.

  Moreover, this trunk | drum 2 is made into the left-right symmetric shape. For this reason, formation of the main body of the trunk | drum 2 by casting is comparatively easy.

  The inlet 21 is cylindrical and is connected to a water supply pipe I (see FIG. 5) embedded in the wall W. For this reason, a pipe screw is formed on the outer peripheral surface of the inlet portion 21 as the pipe engaging portion 211. In addition, as the pipe engaging portion 211, various configurations such as a flange and a fastener can be adopted. And the inner wall of the front side in the connection part 26 to the inlet part 21 at the lower part of the inlet-side flow path 251 has a slope 261 that slopes backward as it goes downstream.

  As shown in FIG. 5, the valve mechanism portion 22 communicates with the inlet-side channel 251 at the rear, and communicates with the outlet-side channel 252 at the side. The valve mechanism portion 22 includes a rotation shaft 221 that protrudes forward, and a valve portion 222 that opens and closes the flow path 25 in conjunction with the rotation shaft 221. A portion of the rotation shaft 221 that protrudes forward from the valve mechanism portion 22 is a spline shaft, and a handle 4 for rotating the rotation shaft 221 is attached to the portion that is the spline shaft. Further, a screw hole for fixing the handle 4 is formed in the front end surface of the rotation shaft 221. The valve part 222 is arranged so that the thickness direction coincides with the front-rear direction, and rotates with respect to the ceramic plate 222a having the through hole so that the rotating plate 222b interlocked with the rotating shaft 221 opens and closes the through hole. By doing so, it is configured to open and close. In the valve part 222 of this structure, since the rotating shaft 221 does not move in the front-rear direction when opening and closing the through hole (non-lift type), it is assumed that the rotating shaft 221 and the handle 4 protrude forward. There is no need to design. Moreover, since the handle | steering-wheel 4 does not protrude or retract by the opening degree of the valve part 222, the faucet C with a built-in wall excellent in aesthetics can be provided.

  A portion of the valve mechanism portion 22 belonging to the main body of the body portion 2 has a cylindrical shape, and a cover fixing screw portion 223 is formed on the outer peripheral surface. The cover fixing screw portion 223 functions as part of a holding means (screw member) that holds the engagement state of the decorative cover 3 with the wall surface W <b> 1, and is a cover fixing nut for fixing the decorative cover 3 to the trunk portion 2. 6 is attached.

  The outlet portion 23 is formed above the inlet portion 21 and below the valve mechanism portion 22 and has a substantially cylindrical shape that extends downward and obliquely forward. A screw is formed on the inner peripheral surface of the outlet portion 23, and a nipple portion 7 for mounting the coupler unit 8 incorporating a shut-off valve and a check valve is screwed. In addition, the shutoff valve of the coupler unit 8 shuts off water flow if the water supply hose or the like of the washing machine connected to the outlet 23 is unexpectedly disconnected, so that the area around the wall built-in water tap C is submerged. Is configured to prevent.

  The nipple portion 7 has a substantially hexagonal column shape so that the nipple portion 7 can be screwed into the outlet portion 23 with a general tool such as a spanner used when fastening a general hexagon nut. The coupler unit 8 has a configuration conforming to a general standard, the rear portion is screwed into the nipple portion 7, and the front portion projects from the nipple portion 7. In addition, a concave portion 71 for fixing the hose hook portion 5 is formed in the substantially hexagonal columnar corner portion of the side surface of the nipple portion 7.

  The hose hook portion 5 is a substantially cylindrical hard resin member having a flange 51 formed at the front end. On the inner surface of the hose hook portion 5, a set of flat portions (not shown) having a relation of opposing each other in the radial direction is formed. The flat portion has a width dimension (dimension along the circumferential direction of the substantially cylindrical shape) that matches the width dimension of one side surface of the hex portion 7 of the substantially hexagonal column shape. A convex portion 52 for fixing the hose hook portion 5 to the nipple portion 7 is formed on the inner surface of the hose hook portion 5 and at the circumferential end of the flat portion.

  The hose hook portion 5 is attached to the nipple portion 7 by aligning the flat portion with any side surface of the nipple portion 7 in the substantially hexagonal column shape and pushing it in the axial direction. At this time, the hose hook portion 5 is fixed by engaging the convex portion 52 with the concave portion 71 of the nipple portion 7. With the hose hook portion 5 attached, a part of the coupler unit 8 projects forward from the hook-like portion 51. A hook H (see FIG. 1) existing at the tip of a water supply hose or the like of the washing machine is hooked on the hook-like portion 51. Thereby, it can suppress that a water supply hose etc. will come off unexpectedly. If the hose hook portion 5 is pulled out in the direction along the axial direction, the engagement with the recess 71 is released and the hose hook portion 5 can be pulled out easily. On the other hand, since the hook H of the water supply hose or the like is hooked on the bowl-shaped portion 51 at one place, when a pulling direction force is generated in the water supply hose or the like due to the water supply pressure or an unexpected pulling force by a person However, since this force is inclined with respect to the direction along the axial direction, the engagement of the hose hook portion 5 with the concave portion 71 is difficult to be released. Therefore, it is possible to effectively prevent the water supply hose and the like from being unexpectedly detached from the coupler unit 8 due to the influence of the water supply pressure.

  Further, the hose hook portion 5 is attached to the trunk portion 2 via the nipple portion 7. Heretofore, there has been a wall built-in faucet in which the decorative cover 3 and the hose hook portion 5 are integrally formed. In this case, when the body portion 2 is fixed to the rear of the design position, the coupler unit 8 and the water supply hose are connected even though the hose hook portion 5 and the hook H on the water supply hose side are engaged. Connection may become incomplete (a state where both of them do not fit together). In this case, there is a possibility that water leakage may occur from the connection portion between the coupler unit 8 and the water supply hose. On the other hand, in this embodiment, since the hose hook part 5 and the coupler unit 8 are both attached to the body part 2, the positional relationship between the hose hook part 5 and the coupler unit 8 is always constant. For this reason, generation | occurrence | production of the water leak like the past can be prevented effectively.

  Next, the outlet part 23 is located between the inlet part 21 and the valve mechanism part 22 when viewed from the front. From this, the dimension (vertical dimension) along the direction in which the inlet-side flow path 251 extends is longer than along the direction in which the outlet-side flow path 252 extends. The position of the end of the inlet side channel 251 near the valve mechanism 22 is a position above the position of the end of the outlet side channel 252 near the valve mechanism 22. As described above, the inner wall on the front side of the connection portion 26 of the inlet-side channel 251 has the inclined surface 261 that is inclined rearward as it goes downstream. The outlet side flow path 252 and the outlet section 23 are connected above and in front of the connection portion 26 in the inlet side flow path 251.

  Further, when the outlet portion 23 is viewed from the front, the outlet portion 23 is positioned between the inlet portion 21 and the valve mechanism portion 22, that is, the outlet portion 23 does not overlap the front of the inlet portion 21. . Here, it may be obliged to check for water leaks between the inlet 21 and the water supply pipe I every predetermined period (for example, 10 years) due to a request from law or the like. In the conventional configuration as shown in FIG. 1, since the exit 104 overlaps the front of the entrance 105, the field of view of the inspector may be blocked and it may be difficult to perform the inspection. On the other hand, in this embodiment, since the exit part 23 does not overlap in front of the entrance part 21, the water leak can be easily inspected as long as the decorative cover 3 is removed.

  The slide receiving portion 24 protrudes left and right from the valve mechanism portion 22. As described above, the slide receiving portion 24 is a portion attached to the slide rail portion 15 of the box portion 1. For this reason, the slide receiving portion 24 is formed with a mounting groove portion 241 that has a shape corresponding to the horizontal and curved surfaces of the slide rail portion 15 and extends in the front-rear direction. As shown in FIG. 4, the mounting groove 241 has a vertical cross-sectional shape that is constant in the front-rear direction. For this reason, the position in the front-rear direction with respect to the slide rail portion 15 can be finely adjusted steplessly. Therefore, the position adjustment in the front-rear direction can be facilitated.

  Further, in the slide receiving portion 24, a screw mounting hole 242 that is a screw hole penetrating from below with respect to the mounting groove portion 241 is formed. The barrel fixing screw S2 is screwed into the screw mounting hole 242, and the tip of the barrel fixing screw S2 is brought into contact with the bottom surface of the screw arrangement groove portion 151 in the slide rail portion 15 of the box portion 1. Thereby, the trunk | drum 2 can be fixed with respect to the box part 1 in the state in which the position adjustment of the said front-back direction was made. The screw mounting holes 242 extend in an oblique direction so that the lower part is positioned forward and the upper part is positioned rearward. For this reason, it is easy for the operator to insert the tool T from the front part opened in the box part 1 and to perform the work of fixing the barrel fixing screw S2.

  The decorative cover 3 is made of hard resin, and covers the through-hole formed in the wall W from the front when the wall built-in faucet C is arranged so that at least a part thereof is located inside the wall W. The decorative cover 3 of the present embodiment is located in front of the box portion 1, and the handle 4, the hose hook portion 5 (part of them) and the coupler unit 8 (part of them) are exposed forward, and the other parts Is a member having a substantially rectangular outer shape. A concave portion 31 recessed rearward is provided at the center, and a valve mechanism portion through portion 32 that is a circular through hole and a sleeve-like outlet portion through portion 33 that extends obliquely downward and forward are formed in the concave portion 31. With this recess 31, the amount of forward exposure of the handle 4, hose hook 5 and coupler unit 8 from the decorative cover 3 can be reduced.

  On the bottom surface of the recess 31 and around the valve mechanism through-hole 32, the "open" and "closed" openings are opened so that it can be seen at a glance whether the handle 4 is in the open position or the closed position. A degree display 36 is displayed.

  Unlike the valve mechanism part penetration part 32, this outlet part penetration part 33 also has a penetration hole. This is because the outlet portion 23 of the trunk portion 2 penetrates the outlet portion through portion 33 obliquely. And since the box part 1 and the trunk | drum 2 can be position-adjusted to the front-back direction as mentioned above, the positional relationship of the decorative cover 3 and the exit part 23 of the trunk | drum 2 can fluctuate | vary up and down with the said position adjustment. This is to cope with the fluctuations. The valve mechanism part penetration part 32 is in a state in which the valve mechanism part 22 of the trunk part 2 is penetrated. In this state, the cover fixing screw part 223 provided on the outer peripheral surface of the valve mechanism part 22 is connected to the wall surface W1 of the decorative cover 3. A cover fixing nut 6 that functions as a part of the holding means that holds the engaged state (screw member) is attached. Thereby, the decorative cover 3 is fixed.

  The decorative cover 3 is formed larger than at least the dimension viewed from the front of the box portion 1. And the outer periphery of this decorative cover 3 is located so that it may overlap with the wallpaper P which forms the wall surface W1. On the rear surface of the decorative cover 3, along the outer peripheral edge, an outer peripheral protrusion 34 that functions as an engaging protrusion that engages with the wall surface W <b> 1, and an inner peripheral protrusion 35 protrudes slightly behind the inner peripheral protrusion 35. Each outer peripheral protrusion 34 and inner peripheral protrusion 35 are formed continuously over the entire periphery, but are not limited thereto, and may be formed intermittently. Each outer peripheral protrusion 34 and inner peripheral protrusion 35 are formed integrally with the decorative cover 3, but are formed separately from the main body of the decorative cover 3, and are configured to be integrated with the main body by fitting or the like. May be. The cross-sectional shape of each protrusion 34, 35 in the cross section orthogonal to the extending direction is a wedge shape with respect to the outer peripheral protrusion 34, and the width dimension decreases toward the rear (that is, the cross-sectional area decreases). 35 is a rectangular shape with a constant width dimension. With respect to the rearward protruding dimension, the outer peripheral protrusion 34 is larger than the inner peripheral protrusion 35.

  In the “wedge shape”, the angle formed between the outer side surface and the inner side surface of the rear end portion 341 of the outer peripheral projection 34 is 30 ° or more and 90 ° or less (if the inner and outer sides are symmetrical, one side surface is the front-rear direction. The angle is 15 ° to 45 °). In the present embodiment, the angle formed by the outer side surface and the inner side surface is 50 °. In addition, it is not essential that the shape of the angle range is formed on all of the outer peripheral protrusions 34, and it may be present at least at the rear end 341 of the outer peripheral protrusion 34. In addition, the width of the end face of the rear end 341 is 0.5 mm or more and 1.5 mm or less. When the rear end portion 341 has a shape having a rounded end face, the “width dimension” is evaluated by an approximate value obtained by doubling the radius of curvature of the rounded portion. In this embodiment, it is formed with a width dimension of 0.5 mm or more and 1.0 mm or less.

  As described above, when the cover fixing nut 6 is screwed into the cover fixing screw portion 223 of the valve mechanism 22 in the trunk portion 2, the decorative cover 3 is pressed against the wall surface W1 (wallpaper P) by the biasing force generated by the screwing. That is, the cover fixing nut 6 is means for pressing the decorative cover 3 backward by screwing. Since the outer peripheral projection 34 has a wedge shape, the rear end 341 of the outer peripheral projection 34 bites into the wall surface W1 (wallpaper P). Accordingly, the decorative cover 3 can be fixed so as not to be displaced with respect to the wall surface W1 (wallpaper P) by fixing the decorative cover 3 only at one place with the cover fixing nut 6. For this reason, for example, it is not necessary to screw the four corners of the decorative cover 3 or to fit the decorative cover 3 to the box portion 1, so that the configuration can be simplified. Further, since the formation of the bolt through hole is unnecessary, the aesthetic appearance can be improved. Note that the outer peripheral protrusion 34 is not limited to the “wedge shape” as in the present embodiment, as long as the rear end 341 can bite into the wall surface W1 (wallpaper P) as described above. The shape may be such that only the portion near the rear end protrudes with a narrow width.

  The inner peripheral protrusion 35 serves as a reinforcing rib that prevents the outer peripheral protrusion 34 from biting into the wall surface W1 more than necessary by contacting the wall surface W1 (wallpaper P), and prevents distortion of the front surface of the decorative cover 3. It serves as a packing presser when packing for preventing condensation is incorporated behind the decorative cover 3.

  The handle 4 includes a disc portion 41 and a handle portion 42 formed integrally with the disc portion 41. The disc portion 41 has a circular outer peripheral shape when viewed from the front, and an open / close display portion 43 that is a substantially semicircular cutout is formed at one location on the outer peripheral edge. As described above, the opening / closing display section 43 can be matched with the opening display 36 in the recess 31 of the decorative cover 3 so as to be visible from the front, and functions as an opening indicator of the valve mechanism section 22. In addition, since the opening / closing display part 43 exists only in one place in the disc part 41, it is in the state in which "open" is displayed in the opening degree display 36 seeing from the front (FIG. 2), or "closed" Is displayed (FIG. 3) or neither “open” nor “closed” is displayed (not shown). For this reason, the user of a washing machine, etc. can recognize at a glance whether the valve mechanism 22 is opened, closed, or at an intermediate opening. In this embodiment, the open / close display unit 43 is implemented as a notch formed in the disk unit 41, but is not limited thereto. For example, a circular or polygonal through hole formed in the disk part 41 or a window part in which a part of the disk part 41 is transparent may be used.

  The handle portion 42 protrudes in front of the disc portion 41 so as to extend in the radial direction. The operator can pinch the handle portion 42 to open and close the valve mechanism portion 22.

  At the center of the rear surface of the handle 4, an attachment hole 44 for attaching the handle 4 to the rotation shaft 221 of the valve mechanism portion 22 in the trunk portion 2 is provided. The mounting hole 44 is a spline hole. The groove of this spline hole is formed every 9 °. On the other hand, the groove of the rotating shaft 221 that is the spline shaft is formed every 18 °. That is, every other groove of the spline hole engages with the portion that is the spline shaft. By configuring the mounting hole 44 in this way, the handle 4 can be mounted in a fine angle range so that the opening degree display 36 (display of “open” and “closed”) and the handle 4 do not deviate in appearance. It is. For this reason, since the handle | steering-wheel 4 can be attached easily without discomfort, workability is favorable. In this embodiment, the number of grooves formed in the spline hole and the number of grooves formed in the portion of the rotating shaft 221 that is the spline shaft are doubled, but the present invention is not limited to this, and may be an integer multiple. That's fine. The angle range for attaching the handle 4 can be finely adjusted as the multiple is increased.

  Further, a through hole 45 is formed in communication with the mounting hole 44 for mounting a handle retaining screw S3 screwed into the front end surface of the rotating shaft 221.

  A construction method of the wall built-in water tap C configured as described above (a method of attaching to the wall W by an operator) will be described.

  The nipple portion 7 incorporating the coupler unit 8 is attached to the outlet portion 23 of the body portion 2 in advance. An O-ring 9 is inserted between the outlet portion 23 and the nipple portion 7. Then, the box portion 1 is attached to the square bar L. Generally, the box portion 1 is attached to a portion where the square member L1 extending in the left-right direction and the square member L2 extending in the vertical direction intersect with each other of the upper surface portion 111, the left surface portion 113, and the right surface portion 114 of the box portion 1. It is made so that the heel is along. Next, the body portion 2 is inserted into the slide rail portion 15 of the box portion 1. At this time, the trunk portion 2 is not yet fixed to the box portion 1.

  Next, the water supply pipe I is connected to the inlet portion 21 of the trunk portion 2. Thereafter, if necessary, a heat insulating material is disposed in a space formed in the wall by the square member L, and a wall plate member B such as a gypsum board is attached to the front of the square member L. The wall plate material B is formed with a through-hole having a size that allows at least the recess 31 of the decorative cover 3 to pass therethrough. In this embodiment, since the decorative cover 3 is not directly fixed to the box portion 1 by a fitting nail or the like, it is not necessary to form the through hole in accordance with the size of the box portion 1, and the size of the through hole formed on site The accuracy can be set roughly. For this reason, workability is good. Next, the wallpaper P is affixed to the front surface of the wall board material B, and the hole corresponding to the through-hole of the wall board material B is also formed in the wallpaper P.

  Thereafter, the barrel portion 2 is fixed to the box portion 1 by screwing the barrel fixing screw S2 into the screw mounting hole 242 of the barrel portion 2. Next, the decorative cover 3 is attached by screwing the cover fixing nut 6 into the valve mechanism portion 22 of the trunk portion 2 in a state where the decorative cover 3 is sandwiched. At this time, since the outer peripheral protrusion 34 of the decorative cover 3 bites into the wallpaper P, the work is performed with care so that the vertical and horizontal directions of the decorative cover 3 do not shift.

  Next, the hose hook portion 5 is attached to the nipple portion 7, the handle 4 is attached to the rotating shaft 221 of the trunk portion 2, and fixed with the handle retaining screw S 3. Thus, the construction of the wall built-in water tap C is completed.

  When using this wall-mounted faucet C, a water supply hose or the like of a washing machine is connected to the coupler unit 8 attached to the body 2, and a hook H on the side of the water supply hose or the like is pulled to the hose hook 5. Multiply. Then, by turning the handle 4 until the “open” display in the opening degree display 36 is normally visible through the opening / closing display portion 43 of the handle 4, water can be supplied to a washing machine or the like connected to the wall built-in water tap C.

  As described above, the wall built-in hydrant C of the present embodiment has significantly improved workability on site compared to the conventional wall hydrant, and is free from problems after construction such as water leakage caused by construction failure. Suppression can be expected.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, A various change can be added in the range which does not deviate from the summary of this invention.

  For example, the box portion 1 may be omitted, and the barrel portion 2 may be fixed to the wall W by using, for example, an L-shaped metal bracket instead of the box portion 1.

  Further, the wall-mounted faucet C of the present embodiment has a layout in which the handle 4 is on the top and the outlet portion 23 is on the bottom. On the contrary, the handle 4 is on the bottom and the outlet portion 23 is on the top. Or a layout in which the handle 4 and the outlet portion 23 are arranged side by side. Furthermore, it can also be set as the layout which the exit part 23 penetrates in the center of the handle | steering-wheel 4 like the structure disclosed by Unexamined-Japanese-Patent No. 2010-13864 by the applicant of this application.

  Moreover, the entrance part 21 of the trunk | drum 2 is provided in two places for water supply and hot water supply, and the trunk | drum 2 can also be made into the type which mixes hot water inside.

  Moreover, as a holding means, it is not limited to the combination of the cover fixing screw part 223 formed in the valve mechanism part 22 in the trunk | drum 2 and the cover fixing nut 6 of this embodiment. In addition, it is possible to use means that can be pressed backward by penetrating the decorative cover 3 from the front of the decorative cover 3 and inserting it backward. For example, bolts, rivets and nails. In addition, means for pulling the decorative cover 3 rearward behind the decorative cover 3 can be used. For example, it is means (such as Insulok tie (registered trademark)) that can hold the locking position by an elastic body or a combination of a wedge portion and a locking portion.

  Further, the connection target of the wall built-in water tap C is not limited to the washing machine, and various devices such as a dishwasher, a water heater, a water purifier, and a humidifier can be used.

  Further, the decorative cover for the wall built-in water faucet is merely an example of implementation, and can be implemented as a decorative cover for a built-in wall body related to the lifeline connection unit or the lifeline control unit.

  The term “lifeline” has a meaning substantially corresponding to a generally used concept. For example, the term “lifeline” may be an energy source such as electricity, gas, liquid fuel, and steam. A route for passing through, or a route for passing water, hot water, etc. necessary for the life of a resident in a building or a business performed by the resident, etc. Further, the term “connecting part” includes an intake part for putting various substances or electricity into the building from the “life line”, and various substances or electricity from the building to the “life line”. And a sending part for sending out. In addition, the “control unit” is a part that performs control for performing distribution and distribution stop of various substances or electricity passing through the “life line”, or performing adjustment of the flow rate, Examples include a switch and a volume adjustment unit.

  Furthermore, terminals not related to the lifeline connection part or lifeline control part, for example, television antenna terminals, LAN terminals, optical fiber terminals, microphone terminals, speaker terminals, etc. related to broadcasting, communication, sound, etc., temperature, humidity Various displays that display current, voltage, electric energy, flow rate, pressure, etc., supply outlets for gas (oxygen, anesthetic gas) in medical institutions, discharge ports for disinfectant and fragrance, and air shooters It can also be implemented as a decorative cover of a wall built-in body relating to the mouth. Furthermore, it can also be implemented as a decorative cover that is used only to block a through hole in the wall.

DESCRIPTION OF SYMBOLS 1 Box part 2 The member arrange | positioned inside a wall, a trunk | drum 22 Valve mechanism part 223 Holding means (screw part)
3 decorative cover 34 engaging protrusion, outer peripheral protrusion 4 handle 5 hose hook part 6 holding means (screw member), cover fixing nut C wall built-in body, wall built-in faucet, lifeline connection part W wall of building W1 wall surface

Claims (8)

When arranging the built-in wall so that at least a part is located inside the wall, in the mounting structure of the decorative cover for covering the through-hole formed in the wall from the front,
The decorative cover protrudes rearward and engages with a wall surface;
A mounting structure for the decorative cover, comprising holding means for holding the engagement state of the decorative cover with the wall surface.   The attachment structure of the decorative cover according to claim 1, wherein the engaging protrusion protrudes from the rear surface of the decorative cover over the entire circumference of the outer peripheral edge of the decorative cover.   The decorative cover mounting structure according to claim 1, wherein the engagement protrusion has a cross-sectional shape with a cross-sectional area that decreases toward the rear. The cross section shape of the engaging projection, the angle formed between the outer side and an inner side surface of the rear end portion of the engaging projection, cosmetic according to claim 3 which is a 30 ° to 90 ° form Cover mounting structure.   The attachment structure of the decorative cover according to claim 3, wherein the engagement protrusion has a width dimension of 0.5 mm or more and 1.5 mm or less at a rear end portion.   The attachment structure for a decorative cover according to any one of claims 1 to 5, wherein the holding means is means for pressing the decorative cover backward.   The decorative cover mounting structure according to claim 6, wherein the holding means is a means capable of performing the backward pressing by screwing.   8. The decorative cover according to claim 7, wherein the holding means includes a screw portion formed in a member disposed inside the wall of the building in the built-in wall body, and a screw member that can be screwed into the screw portion. Mounting structure.

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