JP2007325376A - Box cover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To completely prevent the permeation or sticking of a foamed thermal insulation material to an opening or a contact surface of a box. <P>SOLUTION: A box cover 50 includes a mounting portion 52 that is mounted on a box 10 freely mountably and detachably. The box cover 50 is formed integrally with the mounting portion 52 and provided with a blocking portion (base portion 51 and the like) that blocks the front surface 11, the contact surface 12b, and the entire part of the opening 12a of the box 10 to prevent the permeation of the foamed thermal insulation material. Furthermore, the box cover 50 is provided with a surrounding wall 55 formed integrally with the blocking portion in such a way as to surround a prescribed range including at least the opening 12a portion provided on the front surface of the box 10 to make it an exposed surface after spraying the foamed thermal insulation material, and to protrude to the front surface side of the box 10 in a mounted state to the box 10. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention is a curing method in which a box is embedded in a wall (back space) of a building and a foamed heat insulating material is filled in the wall to shield the opening of the box from the foamed heat insulating material. It relates to a box cover.

Boxes such as a wiring box, a piping box, and a faucet box are disposed in the wall of the building before the inner wall is erected and constructed. This box is provided with an opening on the front surface, from which wiring, piping, faucet joints, etc. are drawn. A box opening is formed on the inner wall at a position facing the box in the wall, and the wiring drawn out from the opening of the box is connected to a wiring device or the like. On the other hand, in the case of adopting the filling heat insulation method as the wall heat insulation method, the wall is filled with a heat insulating material before the inner wall is erected and constructed. At this time, foam insulation such as urethane foam may be sprayed and filled into the walls (inner side surfaces such as outer walls) as the insulation. In this case, before the inner wall is erected on the front side of the box, the foam heat insulating material is sprayed to the outer peripheral edge of the box without any gap and filled into the wall. At this time, there is a possibility that the foam insulation may accidentally enter into the opening of the box. In this case, the opening of the box is partially or entirely blocked by the foam insulation, which hinders drawing of wiring or the like from the opening. Will come. Therefore, conventionally, for example, as described in the description of the prior art in Patent Document 1, it was necessary to close the entire opening of the box with a curing tape or the like before blowing the foam heat insulating material into the wall. .
JP 2002-315145 A

  However, in general, many boxes exist only within the wall of the same section. Therefore, the work of covering the openings of all the boxes with a curing tape or the like is very troublesome and there is room for improvement in terms of workability. There is. Also in this case, the foaming heat insulating material is sprayed on the curing tape that closes the opening of the box and the front surface (other than the curing tape) around the opening of the box, and the foam solidifies into a layer having a considerable thickness. Therefore, when removing the curing tape of the box and pulling out the wiring etc. from the opening of the box, cut off the foam insulation after solidification on the curing tape and the foam insulation after solidification on the front of the box with a tool such as a cutter. Need to be removed. However, the work of removing and removing the solidified foam heat insulating material sprayed on the front surface of the curing tape or the box is troublesome and the removal range is often inaccurate. In other words, it is necessary to accurately cut the foam insulation at the outer periphery of the box, but the foam insulation may be cut to the outer part of the box, which is a necessary part. Therefore, the foam heat insulating material is lost, and the heat insulation efficiency is lowered. In addition, when a contact surface is formed on the front surface of the inner wall so that it comes into contact with the back of the wall (back surface of the inner wall), such as a faucet box, foam insulation is formed on the contact surface. Once the material is sprayed and deposited, it is difficult to cleanly (completely) remove the foam insulation and leave the foam insulation on the abutment surface of the box. In this case, the foam insulation remaining on the contact surface side of the box causes the inner wall to float from the contact surface of the box, which causes a problem that the inner wall cannot be erected firmly.

  Therefore, the present invention covers the entire opening of the box when blowing the foam heat insulating material, completely prevents the foam heat insulating material from entering the box opening, and ensures a smooth drawing work such as wiring from the box opening. And, if necessary, covers the entire abutment surface of the box to completely prevent foam insulation from sticking to the abutment surface of the box, It is an object of the present invention to provide a box cover that can expose the contact surface.

  The box cover according to claim 1 is attached to a box having an opening on the front surface which is disposed in the wall and is on the front side of the wall, and the foam heat insulating material blown to the outer peripheral edge of the box is provided from the opening of the box to the inside. It is a box cover for curing that prevents intrusion. The box cover includes an attachment portion that is detachably attached to the box. The attachment part is, for example, a line shape or a surface shape corresponding to the attachment part of the box, and is closely fitted by surface contact, elastic contact, press-fitting, unevenness, latching, locking, and frictional force. It is to be held and adhered. The box cover includes a closing portion that is integrally formed with the attachment portion and blocks the entire opening of the box to prevent the foam insulation from entering through the opening. The closing portion is, for example, integrally formed at the time of molding resin or polymer material continuously inside or outside, a plate shape having a closing surface corresponding to the opening, a hollow box shape, or Solid block shape. Further, the box cover surrounds a predetermined range including at least the opening portion provided on the front surface of the box so as to be an exposed surface after the foam heat insulating material is sprayed, and the front surface of the box is attached to the box. A peripheral wall formed integrally with the closing portion so as to protrude to the side. For example, the peripheral wall is integrally formed outside or inside the attachment portion. The peripheral wall prevents the foam heat insulating material blown and expanded by blowing to the outer peripheral edge of the box from entering the predetermined range of the box. Alternatively, when the foamed and expanded foam heat insulating material enters the predetermined range of the box, the peripheral wall separates and isolates the foam heat insulating material on the inner side and the outer foam heat insulating material on the inner side of the predetermined range. Here, as a configuration in which the peripheral wall functions so as to “prevent foam insulation material blown and expanded by blowing to the outer peripheral edge of the box into the predetermined range of the box”, for example, the peripheral wall A configuration in which the interior is solid is exemplified. Or it is good also as a structure which makes the inside of a surrounding wall hollow shape (hollow shape which opened a part, such as an upper part and a side part), and shields the whole opening with obstruction | occlusion members, such as a shielding tape and a shielding sheet. With these configurations, it is possible to prevent the foam heat insulating material from adhering to the front surface of the box in a range surrounded by the peripheral wall on the front surface of the box. Further, the peripheral wall is “when the foam insulation material blown and expanded on the outer peripheral edge of the box enters the predetermined range of the box, the inner foam insulation material and the outer foam insulation material of the predetermined range are mutually connected. As a configuration in the case of functioning to “divide and isolate”, for example, a tube shape (triangular tube shape, square tube shape, etc.) having an opening in a direction (usually the front) facing the blowing direction of the foam heat insulating material (A cylindrical shape such as a cylindrical shape, a cylindrical shape, and an elliptical cylindrical shape). Further, in this case, in addition to a hollow cylindrical shape in the entire inside of the peripheral wall, a cylindrical shape in which only a part of the opening side is hollow may be used.

  The box cover according to claim 2 is attached to a box having an opening on the front surface which is disposed in the wall and is on the front side of the wall, and the foam heat insulating material sprayed to the outer peripheral edge of the box is provided inside the opening from the box. A box cover for curing that prevents intrusion, an attachment portion that is detachably attached to the box, and is formed integrally with the attachment portion, and the opening of the box is closed by closing the entire opening. A closed portion that prevents intrusion of the foamed heat insulating material from the outer periphery, and a predetermined range including at least the opening portion provided on the front surface of the box to be an exposed surface after the foamed heat insulating material is sprayed, and to the box And a peripheral wall integrally formed with the closing portion so as to protrude to the front side of the box in the attached state.

  A box cover according to claim 3 is attached to a box having an opening on a front surface which is disposed in a wall and which is on the front side of the wall, and a contact surface which is in contact with a rear surface of the wall which is erected facing the front surface. And a box cover for curing which prevents the foam heat insulating material sprayed on the outer peripheral edge of the box from entering the inside through the opening of the box. The box cover includes an attachment portion that is detachably attached to the box. The attachment part is, for example, a line shape or a surface shape corresponding to the attachment part of the box, and is closely fitted by surface contact, elastic contact, press-fitting, unevenness, latching, locking, and frictional force. Holding, sticking, etc. The box cover includes a closing portion that is integrally formed with the attachment portion and blocks the entire opening of the box to prevent the foam insulation from entering through the opening. The closing part is, for example, a sheet shape, a plate shape, a hollow box shape, or the like, which has a closing surface having a shape corresponding to the opening, which is integrally molded when resin or a polymer material is continuously formed inside or outside, or Solid block shape. Further, the box cover includes a covering portion that is integrally formed with the attachment portion and covers the entire contact surface of the box and prevents the foam heat insulating material from adhering to the contact surface. The covering portion is, for example, a sheet shape, a plate shape, a hollow box shape, etc., which is integrally formed as a whole at the time of molding of a resin or a polymer material continuously inside or outside, and has a covering surface having a shape corresponding to the contact surface. Or it forms a solid block shape. Further, the box cover is integrally formed with the closing portion so as to comprehensively surround the contact surface and the opening portion of the box and to protrude to the front side of the box in the attached state to the box. With a peripheral wall. For example, the peripheral wall is integrally formed outside or inside the attachment portion. The peripheral wall prevents the foam heat insulating material blown and expanded by blowing to the outer peripheral edge of the box from entering the range of the contact surface and the opening portion of the box. Alternatively, the peripheral wall separates the foam insulation material on the inner side and the foam insulation material on the outer side from each other when the foam insulation material expanded and expanded enters the range of the contact surface and the opening of the box. To do. Here, as a configuration in which the peripheral wall functions so as to “prevent the foam heat insulating material blown and expanded by blowing to the outer peripheral edge of the box from entering into the predetermined range of the box”, claim 1 A configuration similar to the configuration described in the above can be employed. Further, the peripheral wall is “when the foam insulation material blown and expanded on the outer peripheral edge of the box enters the predetermined range of the box, the inner foam insulation material and the outer foam insulation material of the predetermined range are mutually connected. A configuration similar to the configuration described in claim 1 can also be adopted as a configuration in the case of functioning to “separate and isolate”.

  A box cover according to claim 4 is attached to a box having an abutment surface disposed in a wall and having an opening on a front surface on the front side of the wall and abutting a back surface of the wall that is erected so as to face the front surface. Is a box cover for curing to prevent the foam heat insulating material sprayed on the outer peripheral edge of the box from entering the inside through the opening of the box, and an attachment portion detachably attached to the box; A closing portion that is integrally formed with the attachment portion, blocks the entire opening of the box and prevents the insulative foaming material from entering through the opening; and an abutment surface of the box that is integrally formed with the attachment portion. Covering the entire surface of the box and preventing the foam insulation from adhering to the contact surface, and surrounding the predetermined range encompassing the contact surface and the opening of the box, and mounting to the box. The front of the box when worn And a integrally formed peripheral wall in said closed portion so as to protrude.

  The box cover according to claim 5 is attached to a box which is disposed in the wall and has an opening on the front side which is the front side of the wall, and the foam heat insulating material sprayed to the outer peripheral edge of the box is introduced from the opening of the box to the inside. It is a box cover for curing that prevents intrusion. The box cover is detachably attached to the box, and is formed integrally with the attachment part, and is closed to block the entire opening of the box and prevent the foam insulation from entering through the opening. And a predetermined area including at least the opening provided on the front surface of the box so as to be an exposed surface after blowing the foam heat insulating material, and projecting to the front surface side of the box in an attached state to the box And a peripheral wall integrally formed with the closing portion. In the box cover, the attachment portion, the closing portion, and the peripheral wall are integrally formed of an olefin resin.

  The box cover according to claim 6 has a faucet box which is disposed in the wall and has an opening on the front side which is the front side of the wall, and the faucet joint is housed in the state where the faucet joint is projected from the opening. This is a curing box cover that prevents the foam heat insulating material attached to the faucet box and sprayed to the outer peripheral edge of the faucet box from entering the inside through the opening of the faucet box. The box cover includes an attachment portion that is detachably attached to the faucet box. The attachment part is, for example, a line shape or a surface shape corresponding to the attachment part of the box, and is closely fitted by surface contact, elastic contact, press-fitting, unevenness, latching, locking, and frictional force. It is to be held and adhered. The box cover includes a closing portion that is integrally formed with the attachment portion and blocks the entire opening of the faucet box to prevent the foam heat insulating material from entering from the opening. The closing portion is, for example, integrally formed at the time of molding resin or polymer material continuously inside or outside, a plate shape having a closing surface corresponding to the opening, a hollow box shape, or Solid block shape. Further, the box cover is formed integrally with the closing portion so as to surround at least the opening portion of the faucet box and to protrude to the front side of the faucet box when attached to the faucet box. A peripheral wall is provided. For example, the peripheral wall is integrally formed outside or inside the attachment portion. In addition, the box cover has a bottomed hollow cylindrical shape having a cross-sectional shape corresponding to the opening at a position facing the opening of the faucet box with the attachment portion attached to the faucet box. As described above, there is provided a gripping part that accommodates a faucet joint that protrudes forward from the closed part inside the peripheral wall and projects from the opening of the faucet box. The gripping part is, for example, a bottomed hollow cylinder that accommodates a faucet joint in a cross-sectional shape corresponding to the opening at a position facing the opening of the faucet box with the attaching part attached to the faucet box. So as to be formed in a hollow cylindrical shape so as to protrude forward from the closed portion and integrally formed.

  A box cover according to a seventh aspect of the present invention is the box cover according to any one of the first to sixth aspects, wherein an inner side surrounded by the peripheral wall is formed in a hollow space opened at a front end side thereof, and is within a predetermined range of the front surface of the box. It is set as the receiving part which receives the foam heat insulating material sprayed on.

  The box cover according to an eighth aspect of the present invention is the structure according to any one of the first to seventh aspects, wherein the peripheral wall is positioned outside the outline of the box in a state where the attachment portion is attached to the box. In addition to being integrally formed with the attachment portion, the entire contour is formed and disposed at the outermost position.

  According to a ninth aspect of the present invention, in the configuration of the eighth aspect, the box cover is integrally formed with the attachment portion so that the peripheral wall is tapered outwardly from the rear surface side toward the front surface side.

  According to a tenth aspect of the present invention, in the configuration of the eighth or ninth aspect, the box cover according to the eighth or ninth aspect is configured so that the base end portion (rear side end portion) of the peripheral wall is attached to the front side of the box with the attachment portion attached to the box. A circumferential rib-shaped groove forming portion extending from the outer peripheral edge to the rear surface side is configured, and when a foam heat insulating material is sprayed on the outer peripheral edge of the box, a groove-shaped blade is inserted into the outer peripheral edge of the front surface of the box Create a space.

  The box cover according to an eleventh aspect is the structure according to the ninth aspect, wherein the attachment portion includes an inner peripheral surface of the groove forming portion at a base end portion of the peripheral wall and an outer peripheral surface of an outer peripheral portion of the front surface of the box. It is formed to have substantially the same shape, and the inner peripheral surface of the groove forming portion is detachably tightly fitted and held on the outer peripheral surface of the outer peripheral edge portion of the front surface of the box.

  According to a twelfth aspect of the present invention, the box cover according to any one of the first to fifth aspects further includes a hollow protrusion-like gripping portion formed integrally with the inside of the peripheral wall.

  A box cover according to a thirteenth aspect is the cross-section corresponding to the opening in the configuration according to the twelfth aspect, wherein the gripping portion faces the opening of the box in a state where the attachment portion is attached to the box. It is integrally formed so as to project forward from the closed portion on the inner side of the peripheral wall so as to form a bottomed hollow cylindrical shape.

  A box cover according to a fourteenth aspect is the projection according to the thirteenth aspect, wherein the attachment portion is formed integrally with a proximal end portion of the gripping portion and protrudes forward from a peripheral edge portion of an opening on the front surface of the box. It forms a protrusion having an inner peripheral surface that is detachably fitted and held on the outer peripheral surface.

  A box cover according to a fifteenth aspect of the present invention is the box cover according to any one of the first to sixth aspects, wherein an inner side surrounded by the peripheral wall is formed in a hollow space having an open front end side, and an opening at the front end of the peripheral wall. A shielding sheet for closing the whole is provided, and the internal space of the peripheral wall is a sealed space between the closing portion and the shielding sheet.

  The box cover according to claim 1 and claim 2 covers the entire opening of the box when blowing the foam heat insulating material, completely prevents the foam heat insulating material from entering the box opening, wiring from the box opening, etc. The smooth drawing operation can be ensured.

  The box cover according to claim 3 and claim 4 covers the entire opening of the box when blowing the foam heat insulating material, completely prevents the foam heat insulating material from entering the box opening, wiring from the box opening, etc. Smooth pull-out work, and also covers the entire contact surface of the box to completely prevent the foam insulation from sticking to the contact surface of the box. The abutting surface of the box can be exposed.

  The box cover according to claim 5 covers the entire opening of the box when blowing the foam heat insulating material, completely prevents the foam heat insulating material from entering the box opening, and smoothly draws out the wiring or the like from the box opening. The work can be ensured, and the extraction work from the surrounding foam heat insulating material can be easily performed.

  The box cover according to claim 6 covers the entire opening of the faucet box when blowing the foam heat insulating material to completely prevent the foam heat insulating material from entering the opening of the water faucet box. Smooth drawing work such as wiring can be ensured, and the entire abutment surface of the faucet box is covered to completely prevent the foam insulation from adhering to the abutment surface of the faucet box. It is possible to expose the contact surface of the faucet box which becomes a reference in the finishing operation. Furthermore, the faucet joint protruding from the opening of the faucet box can be accommodated in the inside of the gripping part, and the covering part of the faucet box (water faucet joint etc.) can be protected by the gripping part. it can.

  The box cover according to claim 7 can further receive the foamed heat insulating material in the receiving portion inside the peripheral wall, and can continuously spray the foamed heat insulating material from the periphery of the box cover to the box cover. Can be improved.

  The box cover according to the eighth aspect can further protect the foam cover from covering the entire front surface including the opening of the box.

  Further, the box cover according to the ninth aspect can be easily extracted from the surrounding foam insulation (outside the peripheral wall).

  The box cover according to claim 10 can further form a blade insertion space automatically by the groove forming portion when the foam heat insulating material is solidified, and the cutting tool can be inserted into the blade insertion space. Excess foam insulation in the vicinity can be removed easily and accurately.

  In the box cover according to the eleventh aspect, the groove forming portion can also be used as the attaching portion.

  The box cover according to the twelfth aspect of the present invention can be easily attached to the box or removed from the foam heat insulating material by gripping the grip portion.

  The box cover according to the thirteenth aspect can further accommodate a member (such as a faucet joint) protruding from the opening of the box inside the gripping portion, and can also protect the corresponding portion of the box by the gripping portion. It can be carried out.

  In the box cover according to the fourteenth aspect, the attachment portion can be tightly fitted and held on the protruding portion of the box, whereby the grip portion can be simultaneously opposed to the opening of the box.

  The box cover according to the fifteenth aspect of the present invention can further prevent the foam heat insulating material from entering by making the inner side of the peripheral wall a sealed space by the shielding sheet.

  Hereinafter, the best mode for carrying out the present invention (hereinafter referred to as an embodiment) will be described. Throughout each embodiment, the same members, elements, or parts are denoted by the same reference numerals, and the description thereof is omitted.

  Embodiment 1

FIG. 1 is a perspective view showing the front side (wall side) of the box cover according to Embodiment 1 of the present invention. FIG. 2 is a perspective view showing the rear side (box side) of the box cover according to Embodiment 1 of the present invention. FIG. 3 is a plan view of the box cover according to Embodiment 1 of the present invention. 4 is a cross-sectional view taken along line AA in FIG. 5 is a cross-sectional view taken along line BB in FIG. FIG. 6 is a perspective view showing a state before the box cover according to Embodiment 1 of the present invention is attached to the box.
As shown in FIGS. 1 to 5, the box cover 50 according to the first embodiment is used by being attached to a box such as a wiring box, a piping box, a water faucet box, etc., when blowing foam insulation into a wall. Protect the box. In the first embodiment, as shown in FIG. 6, a faucet box 10 is illustrated as a box. Since the box itself such as the faucet box 10 is known, the faucet box 10 will be briefly described. The faucet box 10 is provided with a circular ring-shaped lead-out portion 12 at the center of a front surface 11 which is disposed in the wall and is on the front side of the wall. Further, the faucet box 10 has an opening 12 a having a circular cross section formed by the inner peripheral surface of the drawer portion 12. Further, the faucet box 10 forms an abutment surface 12 b by the front end surface of the drawer portion 12. The abutment surface 12b of the faucet box 10 abuts closely against the back of the wall (back surface of the wall) when the wall (inner wall) is constructed upright facing the front surface of the faucet box 10 or the like. Surface. And the faucet box 10 has pulled out the faucet joint (water faucet elbow) 13 penetrated inside from the opening 12a of the drawer | drawing-out part 12 ahead (inner wall side). On the other hand, a connecting portion (connector) 14 is formed at the lower end of the faucet box 10 so as to hang downward. A resin pipe 15 such as a sheath pipe is connected to the connecting portion 14. In the first embodiment, the box cover 50 is detachably attached to the faucet box 10 having the contact surface 12b. When the foam heat insulating material sprayed into the wall (the inner surface of the outer wall, etc.) before the inner wall is erected is also sprayed to the outer peripheral edge of the front surface 11 of the faucet box 10, the foam heat insulating material is used. Is used as a box cover for curing which prevents the faucet box 10 from entering the opening 12a through the opening 12a.

  More specifically, as shown in FIGS. 1 and 5, the box cover 50 has a thin base portion 51, attachment portion 52, covering portion 53, gripping portion 54, peripheral wall 55, groove forming portion 56, and folded portion 57. It is integrally formed in a hollow cover shape or a bottomed square box shape made of a sheet material. Specifically, the base 51 has a substantially rectangular thin sheet shape corresponding to the outer shape of the front surface 11 of the faucet box 10. The front, rear, left and right outer edges of the base 51 have substantially the same shape (rectangular shape) having substantially the same dimensions as the outer peripheral edge (front, rear, left and right outer edges) of the front surface 11 of the faucet box 10. Further, an attachment portion 52 is integrally formed at the center portion of the base portion 51, that is, at a position corresponding to the drawer portion 12 of the faucet box 10 when attaching to the faucet box 10. The attachment part 52 is formed in a cylindrical shape corresponding to the outer peripheral surface shape of the drawer part 12 of the faucet box 10. That is, the attachment portion 52 has a short cylindrical shape having a slightly larger diameter than the outer peripheral surface of the drawer portion 12 and substantially the same height (projection length) as the drawer portion 12. Furthermore, a plurality of (for example, 5 to 6) ribs 52a are integrally formed in the attachment portion 52 so as to extend in the axial direction at a constant interval or a predetermined interval in the circumferential direction. The rib 52 a has a cross-sectional shape that bulges inward of the attachment portion 52. The covering portion 53 is integrally formed so as to extend inward from the tip of the attachment portion 52, and forms a circular ring plate shape (doughnut plate shape) having substantially the same shape as the contact surface 12 of the drawer portion 12 of the faucet box 10. . And the attachment part 52 is detachably attached to the faucet box 10 by inserting the drawer part 12 of the faucet box 10 into the inside thereof and elastically contacting the rib 52a to the outer peripheral surface of the drawer part 12. Thus, the entire box cover 50 including the base 51 and the like is detachably attached to the faucet box 10. At this time, the covering portion 53 integrally formed with the attachment portion 52 comes into contact (close contact) with the contact surface 12b which is the front end surface of the drawer portion 12 of the faucet box 10. That is, the covering portion 53 is integrally formed with the attachment portion 52 and covers the entire contact surface 12b of the faucet box 10 to prevent the foam heat insulating material from adhering to the contact surface 12b. .

  The grip portion 54 is integrally formed on the circular inner periphery of the covering portion 53 so as to extend forward coaxially with the attachment portion 52. The grip portion 54 has a truncated cone shape that is slightly reduced in diameter toward the tip. Further, the grip portion 54 has a faucet joint so that when the attachment portion 52 is attached to the drawer portion 12 of the faucet box 10, the faucet joint 13 extending forward from the drawer portion 12 can be accommodated therein. It has a shape corresponding to 13 external shapes. The gripping part 54 has a bottomed cylindrical shape whose base end is a circular opening that becomes the inner diameter of the covering part 53 and whose tip is closed in a disk shape. That is, the attachment portion 52 is integrally formed at the base end portion of the grip portion 54 and is an outer peripheral surface of the drawer portion 12 as a protrusion portion protruding forward from the peripheral edge portion of the opening 12 a of the front surface 11 of the faucet box 10. A projecting portion having an inner peripheral surface that is detachably tightly fitted and held therein is formed. In the first embodiment, the front surface 11, the opening 12 a and the abutting surface 12 b of the faucet box 10 are closed by the base portion 51, the covering portion 53, and the grip portion 54 formed integrally with the attachment portion 52, A blocking portion is configured to prevent the foam heat insulating material from entering through the opening 12a and the foam heat insulating material from adhering to the contact surface 12b. That is, in the first embodiment, with the box cover 50 attached to the faucet box 10, the base 51, the attaching part 52, the covering part 53, and the grip part 54 are entirely connected to the front face 11 and the faucet box 52. The front surface 11 and the abutment surface 12 of the faucet box 10 are completely closed from the foam insulation that covers the entire range including the abutment surface 12b and is sprayed to the outer periphery of the front surface 11 of the faucet box 10. It is protected by (shielding) and completely prevents the foam heat insulating material from entering the faucet box 10 through the opening 12a.

  The peripheral wall 55 has a rectangular tube shape (cylinder shape having a rectangular cross section) that is integrally formed by standing forward from the front, rear, left, and right outer peripheral side edges (rectangular four sides) of the base 51, and the front end (front end) of the peripheral wall 55 is It has a rectangular opening. That is, the peripheral wall 55 is integrally formed with the attachment portion 52 via the base portion 51 so as to be positioned outside the outer contour of the faucet box 10 in a state where the attachment portion 52 is attached to the faucet box 10. At the same time, an outline of the entire box cover 50 is formed and arranged at the outermost position. Therefore, in the first embodiment, the hollow protrusion-shaped gripping portion 53 is integrally formed inside the peripheral wall 55. In addition, the gripping part 54 is a bottomed hollow cylinder having a cross-sectional shape corresponding to the opening 12a at a position facing the opening 12a of the faucet box 10 in a state where the attaching part 52 is attached to the faucet box 10. In such a manner, it is integrally formed so as to protrude from the closed portion (base 51 or the like) inside the peripheral wall 55 to the rear surface side. The peripheral wall 55 has a tapered shape that slightly expands in diameter toward the tip. In other words, each surface (four surfaces) of the peripheral wall 55 is gradually inclined outward as it is separated from the base 51, and the peripheral wall 55 is tapered to be outwardly inclined from the rear surface side toward the front surface side. It is integrally formed in the attachment part 52 through the base part 51 so that it may become a shape. Furthermore, the height of the peripheral wall 55 (projection length from the base 51) is set to be substantially the same as the height of the grip 54 (projection length from the base 51). In addition, a plurality of (for example, 5 to 10) ribs 55a are integrally formed on the peripheral wall 55 so as to extend in the height direction at regular intervals or predetermined intervals in the circumferential direction.

  As shown in FIG. 3, the groove forming portion 56 is integrally formed at the base end (rear end) of the peripheral wall 55 so as to be a rectangular annular protrusion continuously extending along the lower end of the peripheral wall 55. That is, the peripheral wall 55 comprehensively surrounds the contact surface 12b and the opening 12a portion of the faucet box 10 and protrudes to the front side of the faucet box 10 when attached to the faucet box 10. A groove-shaped blade insertion space is formed on the outer peripheral edge of the front surface 11 of the faucet box 10 when the foam insulation is sprayed on the outer peripheral edge of the faucet box 10. It is supposed to be. Here, the base end portion (rear surface side end portion) of the peripheral wall 55 extends from the outer peripheral edge of the front surface 11 of the faucet box 10 to the rear surface side with the attachment portion 52 attached to the faucet box 10. When the foaming heat insulating material is sprayed on the outer peripheral edge of the faucet box 10, a groove-shaped blade insertion space is formed on the outer peripheral edge of the front surface 11 of the faucet box 10. Then you can figure it out. As will be described in detail later, the peripheral wall 55 prevents the foamed heat insulating material blown and expanded by blowing to the outer peripheral edge of the faucet box 10 from entering the contact surface 12b and the opening 12a portion of the faucet box 10. In the case where the foam heat insulating material which has been blocked and / or expanded has entered the range of the contact surface 12b and the opening 12a portion of the faucet box 10, the foam heat insulating material on the inner side and the foam heat insulating material on the outer side of the range. Are separated and separated from each other. Further, as shown in FIGS. 4 and 5, the groove forming portion 56 has a channel-like or U-shaped cross-sectional shape that connects the outer peripheral side edge (four sides) of the base portion 51 and the lower end edge (four sides) of the peripheral wall 55. And protrudes a predetermined distance rearward from the base 51 (downward in FIG. 5). Further, the groove forming portion 56 is a notch that can accommodate the corresponding portion of the connecting portion 14 at the portion corresponding to the connecting portion 14 of the faucet box 10 when the box cover 50 is attached to the faucet box 10. A portion 56a is formed.

  The folded portion 57 is formed to project from the front end (front end) of the peripheral wall 55 substantially orthogonally outward. The folded portion 57 has a narrow flange shape. The box cover 50 includes a base 51, a mounting portion 52, a covering portion 53, a gripping portion 54, a peripheral wall 55, a groove forming portion 56, and a folded portion 57 configured as described above, and a sheet of an olefin resin such as polyethylene or polypropylene. The material is integrally formed into the above shape (the shape shown in the figure) by vacuum forming or the like. Moreover, in this Embodiment, the box cover 50 is made into the shape of a thin translucent sheet | seat, and the inside of the surrounding wall 55 (the faucet box 10 covered with the obstruction | occlusion part and the obstruction | occlusion part) can be visually recognized from the exterior. Further, in the box cover 50 according to the first embodiment, the inner side surrounded by the peripheral wall 55 is formed in a hollow space having an opening at the tip end side thereof, and foam insulation is sprayed into a predetermined range of the front surface 11 of the faucet box 10. It is the receiving part 58 which receives a material.

Manufacturing method The box cover 50 according to the first embodiment configured as described above can be manufactured to have the above-described configuration by various manufacturing methods corresponding to various materials centering on resin materials. It is preferable from the viewpoint of manufacturing cost and the like that a sheet material made of a synthetic resin material is integrally formed so as to have the above configuration (the shape shown in the figure) by thermoforming such as vacuum forming or pressure forming. Furthermore, in this case, any synthetic resin such as ABS resin or polyvinyl chloride resin can be used as the synthetic resin material, but it is possible to sufficiently ensure the peelability from the foam heat insulating material attached to the box cover 50. As described above, it is preferable to use an olefin resin such as a polyethylene resin or a polypropylene resin. Moreover, as a molding method of the olefin type resin material, normal thermoforming such as vacuum forming can be used.

Method of Use, Action, and Effect FIG. 7 is a perspective view showing a state in which the box cover according to Embodiment 1 of the present invention is attached to the box. FIG. 8 is a cross-sectional view showing a state in which the box cover according to Embodiment 1 of the present invention is attached to the box, and a heat insulating foaming agent is sprayed into the wall, and the foam heat insulating material is also provided inside the peripheral wall of the box cover. Shows the sprayed state. FIG. 9 is a cross-sectional view showing a state in which the box cover according to Embodiment 1 of the present invention is removed from the box after the foam heat insulating material of FIG. 8 is sprayed. FIG. 10 is a cross-sectional view showing a state where the foam heat insulating material in the vicinity of the front outer periphery of the box of FIG. 9 is cut off. FIG. 11 is a perspective view showing a state in which the box cover according to Embodiment 1 of the present invention is attached to the box and a heat insulating foaming agent is sprayed into the wall. 12 is a perspective view showing a state in which the box cover according to Embodiment 1 of the present invention is removed from the box after the foam heat insulating material of FIG. 11 is sprayed. Note that the box cover 50 according to the first embodiment is translucent and the inside can be visually recognized. Therefore, in FIG. 7 to FIG. 12, a state in which the faucet box 10 appears through the box cover 50 is illustrated. Show.

  In order to use the box cover 50 according to the first embodiment, first, as shown in FIG. 6, before the inner wall is erected, it is arranged at a predetermined position in the wall (that is, the spraying surface W such as the inner surface of the outer wall). The rear surface side of the box cover 50 is disposed opposite to the front surface 11 of the water faucet box 10 so as to be close to the water faucet box 10 and attached to the water faucet box 10 as shown in FIG. That is, the drawer part 12 of the faucet box 10 is inserted into the attachment part 52 of the box cover 50, and the outer peripheral surface of the drawer part 12 is elastically pressed and held by the rib 52 a on the inner peripheral surface of the attachment part 52. As a result, the box cover 50 is attached to the front side of the faucet box 10 via the attachment portion 52. Thereby, as shown in FIG. 8, the base 51 of the box cover 50 covers the entire front surface 11 of the faucet box 10 and shields (blocks) it from the outside. Further, the attachment portion 52 covers the entire outer peripheral surface of the drawer portion 12 of the faucet box 10 and shields (closes) it from the outside, and the covering portion 53 covers the entire contact surface 12b of the drawer portion 12. To shield (clog) from the outside. Furthermore, the gripping part 54 covers the entire faucet joint 13 protruding from the drawer part 12 of the faucet box 10 and shields (closes) it from the outside. That is, at this time, the grip portion 54 functions as a housing space (pipe escape space) for the faucet joint 13. Thereby, in the state which attached the box cover 50 to the faucet box 10, the base 51, the attachment part 52, the coating | coated part 53, and the holding | grip part 54 whole have made the front surface 11 and the contact surface 12b of the faucet box 52 into. Full coverage of the entire range. When the foam heat insulating material F is sprayed onto the spraying surface W, the base 51, the attachment part 52, the covering part 53, and the grip part 54 are entirely sprayed to the outer peripheral edge of the front surface 11 of the faucet box 10. From the material F, the front surface 11 and the contact surface 12 of the faucet box 10 are completely closed (shielded) to protect them, and the joint cap 13a on the front end surface of the faucet joint 13 or its opening, or the faucet box 10 It is completely possible that the foam insulation F enters the faucet box 10 from the opening 12a (the gap between the faucet joints 13) of the lead portion 12 or adheres to the front surface 11 or the contact surface 12b. Stop.

  In the case where the box cover 50 is attached to the faucet box 10 in a state where the faucet joint 13 is not attached to the faucet box 10 (a state where the faucet joint 13 is not pulled out from the pull-out portion 12 of the faucet box 10). As shown in FIG. 12, the entire opening 12a of the drawer portion 12 is opened. In this case, the base 51, the attachment portion 52, the covering portion 53, and the gripping portion 54 entirely cover the entire range including the front surface 11 and the contact surface 12 b of the faucet box 52, and the faucet box 10 The front surface 11 and the contact surface 12 of the faucet box 10 are completely closed (shielded) and protected from the foam heat insulating material F sprayed to the outer peripheral edge of the front surface 11, and the foam heat insulation is provided from the opening 12 a to the inside of the faucet box 10. The material is completely prevented from entering or adhering to the front surface 11 or the contact surface 12b. Further, when the drawer portion 12 of the faucet box 10 is detachable from the main body (front surface 11) of the faucet box 10, the faucet box 10 is attached without the drawer portion 12 being attached to the faucet box 10. When the box cover 50 is attached, the large-diameter circular opening corresponding to the lead-out portion 12 in the front surface 11 of the faucet box 10 is naturally opened. In this case, the base 51, the attachment portion 52, the covering portion 53, and the gripping portion 54 entirely cover the entire range including the front surface 11 and the contact surface 12 b of the faucet box 52, and the faucet box 10 The front surface 11 of the faucet box 10 is completely closed (shielded) and protected from the foam insulation F sprayed to the outer peripheral edge of the front surface 11, and foamed into the faucet box 10 from the large-diameter circular opening of the front surface 11. It completely prevents the heat insulating material F from entering or adhering to the front surface 11.

  Here, FIGS. 8 to 12 show an example in which the foam heat insulating material F is sprayed to the inside of the peripheral wall 55 when spraying the foam heat insulating material F to the spraying surface W to the outer peripheral edge of the faucet box 10. . That is, since the hollow space inside (inner side) of the peripheral wall 55 is the receiving portion 58 in the first embodiment, when the foam heat insulating material F is sprayed onto the spray surface W, the foam heat insulating material F is connected to the faucet box. In succession to the spraying operation of spraying around 10, it can be sprayed into the receiving portion 58 and received. Therefore, it is not necessary to perform the blowing operation with care not to spray the foam heat insulating material F on the faucet box 10 portion, and the blowing operation of the foam heat insulating material F to the spraying surface W can be performed continuously and smoothly. And workability is not impaired.

  And after foaming solidification of the foam heat insulating material F, while the foam heat insulating material F1 is apply | coated by the thickness equivalent to the thickness in the spraying surface W in the position of the outer periphery periphery of the faucet box 10, the faucet box 10 At the position corresponding to the front surface 11, the foam heat insulating material F2 is also applied with the same thickness. Therefore, the entire faucet box 10 is completely shielded by the foam heat insulating materials F1 and F2 and cannot be visually recognized from the outside. However, at this time, as shown in FIG. 8 and FIG. 11, the distal end portion of the peripheral wall 55 of the box cover 50 protrudes from the surface of the foam heat insulating materials F1 and F2. The position of the faucet box 10 can be reliably and easily confirmed. At this time, the grip portion 54 of the box cover 50 has the same height as the peripheral wall 55 and projects forward from the foam heat insulating material F2 so that it can be easily seen from the outside. Therefore, as shown in FIGS. 9 and 12, the box cover 50 can be removed from the faucet box 10 by gripping the grip portion 54 of the box cover 50 and pulling it toward the user. Thereby, the site | part which opposes the required exposed surface (at least contact surface 12b periphery) of the faucet box 10 in the solidified foam heat insulating material F is removed, and the exposed space S is formed. The box cover 50 can also be removed from the faucet box 10 by gripping and pulling the folded portion 58 formed at the tip of the peripheral wall 55. Furthermore, at this time, the box cover 50 can be removed together with the foamed heat insulating material F2 received (applied) in the receiving portion 58 in the peripheral wall 55 of the box cover 50, and the foamed heat insulating material F2 in this portion is removed by a cutter knife or the like. It is also possible to omit work such as cutting with a tool. Here, since the box cover 50 is entirely formed of an olefin resin, it adheres to the foam heat insulating materials F, F1, F2 made of a material such as a foamed polystyrene resin or a foamed polyurethane resin due to its non-polarity. It does not adhere and has sufficient peelability. Therefore, the box cover 50 can be easily extracted and removed from the foamed heat insulating materials F and F1 after solidification by holding the grip portion 54 or the folded portion 58 and pulling the box cover 50 forward. Further, since the peripheral wall 55 of the box cover 50 is inclined outward toward the tip, the inclination of the box cover 50 can be formed by the inclination, and the box cover 50 can be more easily extracted. . Thus, in the first embodiment, the outer foam insulating materials F and F1 which are blown and expanded by the peripheral wall 55 to the outer peripheral edge of the front surface 11 of the faucet box 10 and the front surface 11 of the faucet box 10 The inner foam insulation material F2 blown and expanded by blowing to the inner portion of the peripheral wall 55 corresponding to the entire range including the contact surface 12b and the opening 12a can be separated from each other and isolated by the box cover 50 being removed. The foam heat insulating material F2 inside the peripheral wall 55 of the box cover 50 can be automatically extracted. Further, since the peripheral wall 55 separates and isolates the outer foam heat insulating materials F and F1 from the inner foam heat insulating material F2, the outer foam heat insulating materials F and F1 adhere to or adhere to the outer peripheral surface of the peripheral wall 55. Even when it is not easily peeled off (particularly when the peripheral wall 55 is formed of a resin other than an olefin resin (ABS resin or the like)), the foam insulation on the outer peripheral surface side of the peripheral wall 55 using the outer peripheral surface of the peripheral wall 55 as a guide By inserting the tip of a cutting tool such as a cutter knife into the materials F and F1, and cutting the foam heat insulating materials F and F1 along the outer peripheral surface of the peripheral wall 55, the box cover 50 is removed from the foam heat insulating materials F and F1. It can be easily and reliably removed and removed.

  Furthermore, since the groove forming portion 56 of the box cover 50 exists along the outer peripheral edge of the front surface 11 of the faucet box 10 when the foam heat insulating materials F, F1, and F2 are sprayed and foamed and solidified, the foam heat insulating material after solidification is present. After the box cover 50 is removed from F and F1, as shown in FIGS. 9 and 12, along the outer peripheral edge of the front surface 11 of the faucet box 10, a groove-shaped blade insertion space corresponding to the groove forming portion 56 is obtained. (Blade insertion groove) G is formed. Therefore, a cutting tool such as a cutter knife is inserted into the blade insertion space G, and the excess foam insulation F1 protruding from the front surface 11 of the faucet box 10 is easily and accurately cut as shown in FIG. Can be removed. Thereby, the part which protrudes ahead from the front surface 11 of the faucet box 10 in the foam heat insulating material F can be completely excised, and it can be set as the substantially flat surface F3. Will not interfere with the subsequent work. At this time, the faucet box 10 was protected by the box cover 50 when the foam insulation material F was sprayed, so that the entire exposed portion (front surface 11, contact surface 12b, etc.) was protected. The foam heat insulating material F adheres to the exposed surface (including the outer peripheral surface of the lead portion 12) including the surface 12b and does not remain. Therefore, the work related to the faucet box 10 can be smoothly proceeded without any trouble. In particular, the abutting surface 12b of the faucet box 10 is completely protected by the covering portion 53 of the box cover 50 and is prevented from adhering to the foam heat insulating material F. The wall can be erected smoothly and reliably.

Embodiment 2
FIG. 13 is a perspective view showing a state in which the box cover according to Embodiment 2 of the present invention is attached to the box.
As shown in FIG. 13, the box cover 50 according to the second embodiment includes a shielding sheet 60 that shields and closes the entire opening at the tip of the peripheral wall 55 of the box cover 50 according to the first embodiment. The internal space is a sealed space between the closed portion such as the base 51 and the shielding sheet 60. The shielding sheet 60 can be configured by an adhesive tape or the like having the same shape as the outer shape (rectangular shape) of the folded portion 57 at the periphery of the opening of the peripheral wall 55, and the adhesive surface adheres to the surface (front surface) of the folded portion 57. Thus, the internal space of the peripheral wall 55 can be shielded. In the box cover 50 according to the second embodiment configured as described above, since the foamed heat insulating material F does not enter the peripheral wall 55 at all by the shielding sheet 60, the inner cover of the peripheral wall 55 as in the first embodiment is blocked. In addition to making the entire part (base 51 and the like) an integral closed part, a part thereof, for example, the covering part 53 and the grip part 54 can be omitted, and a part of the closed part can be used as an exposed part. . In this case, when the box cover 50 according to the second embodiment is attached to a box such as the faucet box 10, even if the contact surface or front surface of the box is not covered by the closed portion of the box cover 50 and is exposed, the box cover 50 is shielded. The sheet 60 is completely shielded and protected from the outside. Therefore, the box cover 50 of the second embodiment also has the same effect as that of the first embodiment, covers the entire opening of the box when blowing the foam heat insulating material, and prevents the foam heat insulating material from entering the box opening. It is possible to completely prevent and secure smooth drawing work such as wiring from the opening of the box, and if necessary, cover the entire contact surface of the box and foam insulation on the contact surface of the box Can be completely prevented, and the contact surface of the reference box in the finishing work of the heat insulating material can be exposed. Further, since the box cover 50 according to the second embodiment shields the entire opening at the tip of the peripheral wall 55 by the shielding sheet 60, the foam heat insulating material does not enter the peripheral wall 55 when the foam heat insulating material is sprayed. Therefore, when the box cover 50 is removed from the box and reused after use, the work of removing the foam insulation material inside the peripheral wall 55 becomes unnecessary, and it is difficult to remove the foam insulation material adhered to the shielding sheet 60. The box cover 50 can be easily reused simply by replacing the shielding sheet 60 (in some cases).

  By the way, in the box cover of this invention, an attachment part can be made into arbitrary structures other than the said embodiment as long as attachment to any position of boxes, such as a faucet box, is possible. For example, as an arrangement in which the inner peripheral surface of the groove forming portion 56 at the base end of the peripheral wall 55 in the above-described embodiment is closely fitted to the outer peripheral edge of the front surface of the box, the groove forming portion 56 may constitute the attachment portion. it can. In this case, the inner peripheral surface of the groove forming portion 56 at the base end portion of the peripheral wall 55 is formed in the same shape (same size) as the outer peripheral surface of the outer peripheral edge portion of the front surface of the box, and the inner peripheral surface of the groove forming portion 56 is formed. The outer peripheral surface of the outer peripheral edge of the front surface of the box is detachably tightly fitted and held. In particular, in the case of a box having a portion (such as the drawer portion 12) protruding from the front surface 11 like the faucet box 10, the attachment portion 52 is attached to the drawer portion 12 as in the above embodiment. However, in the case of a box in which the front surface is a flat surface without a portion protruding from the front surface as in a general wiring box, an attachment portion is provided at the base end portion of the peripheral wall 55, and the attachment portion It is preferable to be configured to be detachably attached to the box (for example, the groove forming portion 56 is also used, or an attaching portion other than the groove forming portion 56 is integrally formed at the base end of the peripheral wall 55). Further, the attachment portion is configured to hold the attachment surface by close fitting or the like corresponding to the attachment surface (attached surface) of the box, but the attachment surface of the box (in the case of the first embodiment) The attachment surface may be held in close contact with the entire outer peripheral surface of the lead-out portion 12, or a part of the attachment surface may be held (for example, a plurality of like in the first embodiment). Holding at multiple points with ribs). That is, as long as the attachment portion can be attached to the attachment surface corresponding to the attachment surface of the box, it can be (several) dot-like, (several) linear, planar, etc. It can be detachably attached to the attachment surface of the box by holding by point contact, line contact, surface contact or the like. At this time, the attachment portion is held on the attachment surface of the box by a frictional force, an elastic pressing force, a pressure input, an uneven relationship, latching or locking. In addition to this, the attachment part can be detachably attached to the box by adhesion or the like by providing a double-sided adhesive tape on part or all of the rear surface (opposite surface to the box) of the closing part. You can also.

  In the box cover of the present invention, the closing part may have any configuration other than the above embodiment as long as it closes at least the opening of the box. For example, in the case of a box having a protruding portion (such as the drawer portion 12) on the front surface as in the faucet box 10, the closing portion is a protruding portion having a shape corresponding to the protruding portion (in addition to the portion covering the front surface of the box). However, in the case of a box that does not have a projection, such as a normal wiring box, it is naturally preferable to use a flat sheet-like configuration. However, even in this case, it is also possible to provide a protruding portion for the purpose of gripping or the like, like the gripping portion 54 of the above embodiment. Further, as in the second embodiment, when the front end opening of the peripheral wall 55 is shielded and the internal space is shielded from the outside, the closing portion covers the entire front surface of the box (if there is a projection, the projection). It is not necessary to have a shape, and a part of the shape can be exposed. Needless to say, even in this case, the closing portion may have a shape covering the entire front surface of the box (if there is a protruding portion, the protruding portion).

  Furthermore, the box cover according to the present invention has a rectangular parallelepiped block shape in which the inside of the peripheral wall is solid, in addition to the peripheral wall standing upright at the closed portion and making the inside of the peripheral wall a hollow space as in the above embodiment. You can also. In this case, when there is a protrusion on the front surface such as a faucet box, a space corresponding to the protrusion is provided in the block-shaped portion of the box cover. In this case, the attachment portion is configured to be attached to the protruding portion of the box (attachment portion 52 or the like) as in the above embodiment, or the base end portion of the peripheral wall is the lower surface (rear surface) of the block-like portion. The outer peripheral surface of the outer peripheral edge of the front surface of the box is fitted or locked and held by the protruding portion. Further, in the box cover of the present invention, the peripheral wall is erected at a predetermined position inside the closed part in addition to standing at the outer peripheral edge of the closed part and forming the entire contour as in the above embodiment. You can also In this case, a peripheral wall is erected on the inner side of the blocking portion (for example, a portion between the outer peripheral edge of the base portion 51 and the grip portion 54). Therefore, in this case, there are blocking portions inside and outside the peripheral wall. Even in this case, like the peripheral wall 55 of the above-described embodiment, the peripheral wall forms a receiving portion for the foamed heat insulating material therein, or serves as a guide for confirming the location of the box after the foamed heat insulating material is solidified. can do. Also in this case, a protrusion similar to the groove forming portion can be formed on the rear surface of the outer peripheral edge of the closing portion, and a blade insertion space can be formed when the foam heat insulating material is solidified. That is, the box cover of the present invention has a peripheral wall standing upright so as to enclose an arbitrary range that is desired to be exposed without blowing the foam heat insulating material at least on the front surface of the box including the opening, and at least inside the peripheral wall. What is necessary is just to provide an obstruction | occlusion part. If it carries out like this, the range of the said box will be exposed from the foaming heat insulating material after solidification, and subsequent operations, such as wiring from a box and drawing of piping, can be performed smoothly. For example, in the case of a box having an abutting surface that abuts against the back of the wall, such as a faucet box, a peripheral wall is erected so as to surround at least the abutting surface, and a blocking portion is provided at least inside the peripheral wall. Thereby, the contact surface range (and opening) of the box can be exposed from the foamed heat insulating material after solidification by the box cover.

  In the box cover of the present invention, the covering portion can have any configuration as long as it covers and protects the contact surface of the box. For example, the covering portion may have a sheet shape having a size and shape larger than the contact surface, in addition to the sheet shape having the same shape as the contact surface of the box (the contact surface 12b of the drawer portion 12 and the like). In addition to the circular shape, the shape can be any square sheet or other shapes. In the case of a configuration in which the covering portion is integrally formed at the tip of the attachment portion (inserting and holding the protruding portion forming the contact surface) as in the above embodiment, the cover portion corresponds to the contact surface of the box. However, when the attachment portion is provided at a place other than the projection portion constituting the contact surface, such as the base end portion of the peripheral wall, the covering portion can be formed in an arbitrary shape. Note that the covering portion need not be provided in the case of a box having no contact surface. Further, the box cover of the present invention can adopt a simple planar peripheral wall without providing ribs or folding portions on the peripheral wall as in the above embodiment. In this case, it becomes easier to cut away the foam insulation around the peripheral wall.

  Further, the box cover of the present invention can be manufactured by an arbitrary manufacturing method other than the manufacturing method of the above-described embodiment. For example, even when manufactured by a synthetic resin, injection molding, transform molding, etc. It is also possible to mold by this molding method. In addition to the synthetic resin, it is also possible to integrally form the whole by using a papermaking technique such as a pulp material or a non-woven fabric material and a non-woven fabric manufacturing technique (press molding or the like). That is, as a method for forming the box cover of the present invention, when thermoforming as a solid forming method, such as vacuum forming or pressure forming, is adopted, the whole can be integrally formed using a thin sheet material. However, any other resin molding method such as plastic working, compression / transfer molding, injection molding, etc. can be adopted. Also, any molding method other than the resin molding method (pulp material as a polymer or The box cover can also be manufactured in a predetermined shape by compression molding of a nonwoven material or the like. Further, in the present invention, the box cover having a hollow shape on the inner side of the peripheral wall is formed on the inner side of the peripheral wall when spraying the foam heat insulating material F to the spraying surface W to the outer peripheral edge of the box such as the faucet box 10. It can also be used in a construction state in which the foam heat insulating material F is not sprayed. That is, in the case of blowing the foam insulation to the outer peripheral edge of the box when blowing the foam insulation to the blowing surface as in the above embodiment, in the case of blowing the foam insulation to the inside of the peripheral wall, Sprayed to the inner part of the peripheral wall corresponding to the entire range including the outer foam insulation material that was blown to the periphery and expanded and expanded, and the front and opening of the box (or the contact surface if there is a contact surface) The foamed and expanded inner foam insulation can be separated from each other and isolated. On the other hand, when used in a construction state in which the foam insulation F is not sprayed on the inside of the peripheral wall, the box cover is blown to the outer peripheral edge of the box, and the foam insulation expanded and expanded is the contact surface and the opening portion of the box. If the foam insulation expanded and expanded into the area of the contact surface and the opening of the box, the foam insulation on the inside and the outside Separate the foam insulation from each other. Furthermore, at this time, if a folded portion such as the folded portion 58 of the above-described embodiment is provided, the folded portion may cause the foam insulation material sprayed around the box cover to enter the inside of the peripheral wall due to expansion, scattering, or the like. To prevent. On the other hand, in the present invention, the box cover having a solid shape (block shape) on the inner side of the peripheral wall has a foam insulating material blown and expanded on the outer peripheral edge of the box within the range of the contact surface and the opening portion of the box. Intrusion into the wall is prevented by the peripheral wall. In addition to the faucet box 10, the box cover of the present invention can, of course, be used for any box such as a wiring box or a piping box, and the configuration is changed according to the configuration of the box.

FIG. 1 is a perspective view showing the front side (wall side) of the box cover according to Embodiment 1 of the present invention. FIG. 2 is a perspective view showing the rear side (box side) of the box cover according to Embodiment 1 of the present invention. FIG. 3 is a plan view of the box cover according to Embodiment 1 of the present invention. 4 is a cross-sectional view taken along line AA in FIG. 5 is a cross-sectional view taken along line BB in FIG. FIG. 6 is a perspective view showing a state before the box cover according to Embodiment 1 of the present invention is attached to the box. FIG. 7 is a perspective view showing a state in which the box cover according to Embodiment 1 of the present invention is attached to the box. FIG. 8 is a cross-sectional view showing a state in which the box cover according to Embodiment 1 of the present invention is attached to the box, and a heat insulating foaming agent is sprayed into the wall, and the foam heat insulating material is also provided inside the peripheral wall of the box cover. Shows the sprayed state. FIG. 9 is a cross-sectional view showing a state in which the box cover according to Embodiment 1 of the present invention is removed from the box after the foam heat insulating material of FIG. 8 is sprayed. FIG. 10 is a cross-sectional view showing a state where the foam heat insulating material in the vicinity of the front outer periphery of the box of FIG. 9 is cut off. FIG. 11 is a perspective view showing a state in which the box cover according to Embodiment 1 of the present invention is attached to the box and a heat insulating foaming agent is sprayed into the wall. 12 is a perspective view showing a state in which the box cover according to Embodiment 1 of the present invention is removed from the box after the foam heat insulating material of FIG. 11 is sprayed. FIG. 13 is a perspective view showing a state in which the box cover according to Embodiment 2 of the present invention is attached to the box.

Explanation of symbols

10 faucet box (box), 11: front surface, 12b: abutting surface, 13: faucet joint 50: box cover, 51: base portion (blocking portion), 52: attachment portion (blocking portion)
53: Covering part (blocking part), 54: Holding part (blocking part), 55: Peripheral wall, 56: Groove forming part 58: Receiving part, 60: Shielding sheet F, F1, F2: Foam insulation, G: Blade insertion Space, W: Spray surface (inside wall)

Claims (15)

It is attached to a box having an opening on the front side that is disposed in the wall and is on the front side of the wall, and is used for curing to prevent the foam insulation material sprayed to the outer peripheral edge of the box from entering the inside through the opening of the box. A box cover,
An attachment part detachably attached to the box;
A closing part that is integrally formed with the attachment part and blocks the entire opening of the box to prevent the foam insulation from entering through the opening;
To surround a predetermined range including at least the opening portion provided on the front surface of the box to be an exposed surface after blowing the foam heat insulating material, and to protrude to the front side of the box in the attached state to the box The foamed heat insulating material formed integrally with the closing portion and blown to the outer peripheral edge of the box to expand and expand is prevented from entering the predetermined range of the box, or the foam expanded heat insulating material expanded and expanded A box cover, comprising: a peripheral wall that separates and isolates the foamed heat insulating material inside and the outer foamed heat insulating material inside the predetermined range when entering a predetermined range. It is attached to a box having an opening on the front side that is disposed in the wall and is on the front side of the wall, and is used for curing to prevent the foam insulation material sprayed to the outer peripheral edge of the box from entering the inside through the opening of the box. A box cover,
An attachment part detachably attached to the box;
A closing part that is integrally formed with the attachment part and blocks the entire opening of the box to prevent the foam insulation from entering through the opening;
To surround a predetermined range including at least the opening portion provided on the front surface of the box to be an exposed surface after blowing the foam heat insulating material, and to protrude to the front side of the box in the attached state to the box A box cover, comprising: a peripheral wall integrally formed with the closing portion. Attached to a box that has an opening on the front side that is disposed in the wall and that has an opening on the front side of the wall and abuts against the back side of the wall that faces the front side, and sprays it on the outer periphery of the box A box cover for curing that prevents the foam insulation material from entering the inside from the opening of the box,
An attachment part detachably attached to the box;
A closing part that is integrally formed with the attachment part and blocks the entire opening of the box to prevent the foam insulation from entering through the opening;
A cover portion that is integrally formed with the attachment portion, covers the entire contact surface of the box, and prevents adhesion of the foam heat insulating material to the contact surface;
The closure portion is integrally formed so as to surround and surround the abutment surface and the opening portion of the box and to protrude to the front side of the box in the attached state to the box. The foamed insulation material that has been blown and expanded is prevented from entering the contact surface and the opening portion of the box, or the expanded foam insulation material is expanded on the contact surface and the opening portion of the box. A box cover comprising a peripheral wall that divides and isolates the foam insulation material inside and the foam insulation material outside when entering the range. Attached to a box that has an opening on the front side that is disposed in the wall and that has an opening on the front side of the wall and abuts against the back side of the wall that faces the front side, and sprays it on the outer periphery of the box A box cover for curing that prevents the foam insulation material from entering the inside from the opening of the box,
An attachment part detachably attached to the box;
A closing part that is integrally formed with the attachment part and blocks the entire opening of the box to prevent the foam insulation from entering through the opening;
A cover portion that is integrally formed with the attachment portion, covers the entire contact surface of the box, and prevents adhesion of the foam heat insulating material to the contact surface;
A peripheral wall integrally formed with the closing portion so as to surround a predetermined range including the contact surface and the opening portion of the box and project to the front surface side of the box in the attached state to the box. A box cover characterized by that. It is attached to a box having an opening on the front side that is disposed in the wall and is on the front side of the wall, and is used for curing to prevent the foam insulation material sprayed to the outer peripheral edge of the box from entering the inside through the opening of the box. A box cover,
An attachment part detachably attached to the box;
A closing part that is integrally formed with the attachment part and blocks the entire opening of the box to prevent the foam insulation from entering through the opening;
To surround a predetermined range including at least the opening portion provided on the front surface of the box to be an exposed surface after blowing the foam heat insulating material, and to protrude to the front side of the box in the attached state to the box A peripheral wall integrally formed with the blocking portion,
A box cover, wherein the attachment portion, the closing portion, and the peripheral wall are integrally formed of an olefin resin. The faucet box is attached to a faucet box that has an opening in the front surface that is disposed in the wall and has a faucet joint protruding from the opening, It is a box cover for curing that prevents the foam heat insulating material sprayed on the outer peripheral edge of the water from entering the inside through the opening of the faucet box,
An attachment part that is detachably attached to the faucet box;
A closing part that is integrally formed with the attachment part, blocks the entire opening of the faucet box, and prevents the insulative foam insulation from entering the opening,
A peripheral wall integrally formed with the closing portion so as to surround at least the opening portion of the faucet box and to protrude to the front side of the faucet box in an attached state to the faucet box;
In a state where the attachment portion is attached to the faucet box, the inner wall of the peripheral wall is arranged at a position facing the opening of the faucet box so as to form a bottomed hollow cylinder having a cross-sectional shape corresponding to the opening. A box cover, comprising: a grip part that protrudes forward from the closing part and is integrally formed and accommodates a faucet joint projecting from an opening of the faucet box.   The inner side surrounded by the peripheral wall is formed in a hollow space whose front end is opened, and serves as a receiving portion that receives a foamed heat insulating material sprayed within a predetermined range of the front surface of the box. Item 7. The box cover according to any one of items 1 to 6.   The peripheral wall is integrally formed with the attachment portion so as to be positioned outside the outer contour of the box in a state in which the attachment portion is attached to the box, and forms an overall contour to form an outermost position. The box cover according to any one of claims 1 to 7, wherein the box cover is disposed on the box.   The box cover according to claim 8, wherein the peripheral wall is integrally formed with the attachment portion so as to be tapered outwardly from the rear surface side toward the front surface side.   The base end portion of the peripheral wall constitutes a circumferential rib-shaped groove forming portion extending from the outer peripheral edge of the front surface of the box to the rear surface side in a state where the attachment portion is attached to the box, The box cover according to claim 8 or 9, wherein a groove-shaped blade insertion space is formed in the outer peripheral edge of the front surface of the box when a material is sprayed on the outer peripheral edge of the box.   The attachment portion is configured by forming the inner peripheral surface of the groove forming portion at the base end portion of the peripheral wall in substantially the same shape as the outer peripheral surface of the outer peripheral portion of the front surface of the box, and the inner portion of the groove forming portion The box cover according to claim 10, wherein the peripheral surface is detachably tightly fitted and held on the outer peripheral surface of the outer peripheral edge of the front surface of the box.   The box cover according to any one of claims 1 to 5, further comprising a hollow protrusion-like gripping part integrally formed on the inner side of the peripheral wall.   The gripping portion is disposed on the inner side of the peripheral wall so as to have a bottomed hollow cylindrical shape having a cross-sectional shape corresponding to the opening at a position facing the opening of the box with the attachment portion attached to the box. The box cover according to claim 12, wherein the box cover is integrally formed so as to protrude forward from the closing portion.   The attachment part is formed integrally with a base end part of the grip part, and has a projecting part having an inner peripheral surface that is detachably fitted and held on an outer peripheral surface of a projecting part projecting forward from the front surface of the box. The box cover according to claim 13, wherein the box cover has a shape. The inner side surrounded by the peripheral wall is formed in a hollow space opened at the tip side thereof,
Furthermore, it has the shielding sheet which obstruct | occludes the whole opening of the front-end | tip of the said surrounding wall, The inside space of the said surrounding wall was used as the sealed space between the said obstruction | occlusion part and the said shielding sheet, The any one of Claim 1 thru | or 6 characterized by the above-mentioned. Or Box cover according to item 1.

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