JP2009299746A - Hole blocking-up embedded plug and hole blocking-up method using hole blocking-up embedded plug - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely and easily block up a hole arranged in a structure with an extremely simple and economical structure. <P>SOLUTION: A screw member 103 is fastened, and an embedded plug member 101 composed of an elastic body is compressed between a washer member 105 and a fastening plate member 107, and the embedded plug member 101 is expanded, and the hole arranged in the structure is blocked up by this expansion. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention is, for example, an embedding plug for hole closing which can be inserted into a hole provided in a structure such as a peripheral wall of a hollow concrete electric pole, a partition wall such as a manhole or a hand hole, and can reliably and easily close the hole. And a hole closing method using the hole closing plug.

  In a hollow concrete utility pole that has just been erected on the ground, a utility pole that has not yet been filled with reinforcing mortar or the like is a hole drilled in the outer peripheral side wall, such as a ground wire outlet (ground hole) There are many metal mounting holes (holes for mounting scaffolding bolts).

  In addition, when embedding cables for communication and power in the ground, manholes and hand holes are provided in the ground in the middle of the cable as a relay inspection place. However, there are a lot of holes for cables.

  Of these holes, holes that are not used, such as holes that are not fitted with scaffolding bolts in concrete utility poles, and holes that do not allow cables to pass through in manholes or hand holes, need to be completely blocked.

  As a conventional technique for closing such a hole, there is a hole closing plug as disclosed in Patent Document 1, for example. As can be seen from FIGS. 1 and 5 of the publication, this conventional hole closing plug has a cylindrical body 51, a slot 53, four upper arm portions 55a, four lower arm portions 55b, and a nut portion. A relatively complicated fastener portion 5 consisting of 57 is provided.

Moreover, the conventional pipeline sealing structure for sealing the cable pipeline disclosed by patent document 2 uses the special fastening metal fitting 13 in order to compress an elastic body. As can be seen from FIG. 1 and the like of the publication, the fastening bracket 13 is provided with a special L-shaped fastening operation piece 18 attached to the other end mounting portion 16a which is a rectangular head portion of the shaft 16, The tightening operation piece 18 is operated to tighten the elastic body 12 to compress it.
JP 2007-151386 A JP-A-8-331742

  The above-described prior art requires a relatively complicated fastener portion 5 and a special fastening fitting 12, and is not simple in structure and is not economical.

  The present invention has been made in view of the above, and an object of the present invention is to provide an embedding plug for hole closure capable of reliably and easily closing a hole provided in a structure with an extremely simple and economical structure, and An object of the present invention is to provide a hole closing method using the hole closing embedded plug.

  In order to achieve the above object, a hole closing embedded plug according to claim 1 is a hole closing embedded plug that is inserted into a hole provided in a structure and closes the hole. An embedding member made of an elastic body that expands in a direction orthogonal to the insertion direction when compressed in the insertion direction when the insertion plug is inserted into the hole, and so as to penetrate the embedding member in the insertion direction A small-diameter hole is formed in a portion corresponding to the small-diameter hole formed in the embedding member and in close contact with the first end surface in the insertion direction of the embedding member. In order to fasten the formed washer member and the plug member between the washer member, the plug member is disposed in close contact with the second end surface opposite to the first end surface in the insertion direction of the plug member. A small-diameter screw hole is formed in a portion corresponding to the small-diameter hole penetrating through the second portion of the plug member. A flat plate member for fastening smaller than the area of the surface, and a screw member that penetrates the small-diameter hole of the plug member from the small-diameter hole of the washer member and is screwed into the screw hole of the flat plate member for fastening. The screw member is clamped between the washer member and the clamping flat plate member by tightening the screw member and compressed in the insertion direction, and the screw member expands the plug member in a direction perpendicular to the insertion direction. It is summarized as having.

  In the plug for closing a hole according to claim 1, the plug member made of an elastic body is compressed between the washer member and the flat plate for tightening by tightening the screw member, and in a direction orthogonal to the insertion direction. Since the embedding member is expanded and the hole provided in the structure is closed by this expansion, the hole can be closed quickly and surely with a very simple and inexpensive structure.

  The hole closing plug according to claim 2 is disposed between the washer member and the first end face of the plug member in close contact with the first end face of the plug member, Another tightening screw having a small-diameter screw hole formed in a portion corresponding to a small-diameter hole penetrating, the area being larger than the area of the washer member and smaller than the area of the first end face of the embedding member A flat plate member, and when the screw member is tightened, the embedding member is sandwiched between the another flat plate member for clamping and the flat plate member for tightening via the washer member, and compressed in the insertion direction, The gist is to expand the plug member in a direction orthogonal to the insertion direction.

  In the hole closing plug according to claim 2, since another clamping flat plate member is disposed between the washer member and the first end face of the plug member, even when the washer member is small, By selecting and using another fastening flat plate member having a size suitable for the size of the embedding member, the embedding member is accurately positioned between the other fastening flat plate member and the fastening flat plate member 307. Can be tightened.

  The embedding plug for hole closing according to claim 3, wherein the tightening flat plate member is formed in a portion in close contact with the second end surface of the embedding member, and when the screw member is tightened, The gist of the present invention is to have a latching portion that protrudes so as to bite into the second end face of the embedding member without idling.

  In the hole closing plug according to claim 3, when the screw member is tightened, the latching portion of the tightening flat plate member bites into the second end surface of the plug member. The plug member can be securely tightened without idling with respect to the plug member.

  5. The hole closing plug according to claim 4, wherein when the another flat plate member is formed in a portion in close contact with the first end surface of the plug member and the screw member is tightened, the plug member is plugged. The gist of the invention is to have a latching portion formed so as to protrude into the first end face of the embedding member without idling with respect to the member.

  In the hole closing plug according to claim 4, when the screw member is tightened, the latching portion of the other flat plate member bites into the first end face of the plug member. The flat plate member can securely tighten the plug member without spinning around the plug member.

  The embedding plug for closing a hole according to claim 5 is configured such that the flat plate member for tightening has a central portion centered on the small-diameter screw hole on the surface opposite to the surface in close contact with the second end surface of the embedding member. The gist is that a flat plate member bulging portion bulging in an arc shape is formed.

  In the hole closing embedded plug according to claim 5, since the central portion of the tightening flat plate member bulges in an arc shape to form a flat plate member bulging portion, the tightening flat plate is formed by tightening the screw member. Even if the plate member for fastening different from the member is strongly tightened, it becomes difficult to break, and the strength can be increased.

  The embedded plug for hole closing according to claim 6, wherein the other flat plate member for tightening has an arcuate central portion around the small-diameter hole on the surface opposite to the surface in close contact with the end surface of the plug member. The gist of the present invention is that a flat plate member bulging portion is formed.

  In the embedded plug for closing a hole according to claim 6, since the central portion of another fastening flat plate member bulges out in an arc shape to form a flat plate member bulging portion, tightening by tightening the screw member Even if a flat plate member for fastening and another flat plate member for fastening are strongly tightened, it is difficult to break, and the strength can be increased.

  The embedded plug for hole closing according to claim 7, wherein the tightening flat plate member has a nut member embedded from the arcuate top portion of the flat plate member bulging portion into the tightening flat plate member. The gist of the invention is that the tip of the screw member passing through the small-diameter hole of the plug member is screwed into the screw hole of the nut member.

  In the embedded plug for hole closing according to claim 7, a nut member is embedded in the arcuate top of the bulged portion of the flat plate member, and the screw member that penetrates the small diameter hole of the plug member into the screw hole of the nut member. Since the tip is screwed, even if the screw member is strongly tightened, it is difficult to break and the strength can be increased.

  The embedding plug for hole closing according to claim 8 is characterized in that the threaded member has a male threaded portion formed only in a portion near the tip where the threaded member is screwed into the threaded hole.

  In the embedded plug for hole closure according to claim 8, since the male thread part is formed only in the portion near the tip of the screw member, the thread part may be caught on the inner peripheral surface of the embedding member. As it disappears, economics can be achieved.

  According to a ninth aspect of the present invention, there is provided a plug for closing a hole according to claim 9, wherein the screw member is a hexagon socket head bolt or a plus screw.

  In the embedded plug for hole closure according to claim 9, since the screw member is a hexagon socket head cap screw or a plus screw, when a hexagon socket head cap screw is used, it can be strongly tightened using a hexagon stick wrench. When a Phillips screw is used, it can be easily tightened with a normal Phillips screwdriver.

  The embedding plug for hole closing according to claim 10 is characterized in that the embedding member is formed of natural rubber, synthetic rubber, or a mixture thereof.

  In the embedding plug for hole closure according to claim 10, since the embedding member is formed of natural rubber, synthetic rubber, or a mixture thereof, the embolization of the embedding member due to compression and the closure of the hole due to the expansion are efficient. And it can be done reliably.

  The embedding plug for hole closing according to claim 11 is characterized in that the flat plate member for fastening is made of plastic.

  In the embedded plug for hole closing according to the eleventh aspect, since the tightening flat plate member is made of plastic, it is possible to achieve weight reduction and economy.

  The embedding plug for hole closing according to claim 12 is characterized in that the other flat plate member for fastening is made of plastic.

  In the embedded plug for closing a hole according to claim 12, since the other flat plate member for tightening is made of plastic, it is possible to achieve weight reduction and economy.

  The embedding plug for hole closing according to claim 13 is characterized in that the embedding member is a truncated cone whose area of the first end face is larger than that of the second end face.

  In the embedding plug for hole closing according to the thirteenth aspect, since the embedding member is a truncated cone, the embedding member can be easily inserted when pressed into the hole of the structure.

  The embedding plug for hole closing according to claim 14 is characterized in that the embedding member is a cylindrical body having the same cross section from the first end face side to the second end face side.

  In the plug for closing a hole according to claim 14, since the plug member is a cylindrical body having the same cross section, the pressing force to the hole of the plug member due to the expansion of the plug member can be equalized, and the hole is reliably closed. can do.

  The embedding plug for hole closing according to claim 15, wherein the embedding member has a cross-sectional shape perpendicular to the insertion direction similar to the shape of the hole provided in the structure, and the area of the cross-section is The gist is that it is slightly larger than the cross-sectional area of the hole to the extent that it can be inserted into the hole by press-fitting.

  The embedding plug for hole closure according to claim 15, wherein the embedding member has a cross-sectional shape similar to the shape of the hole, and the cross-sectional area is larger than the cross-sectional area of the hole to be inserted by press-fitting into the hole. Is slightly larger, the hole can be reliably closed.

  According to a sixteenth aspect of the present invention, there is provided a plug for closing a hole according to claim 16, wherein the plug member is provided in a type corresponding to a cross-sectional area and a shape of a hole provided in the structure.

  In the embedding plug for hole closing according to claim 16, since the embedding member is provided in a kind corresponding to the cross-sectional area and shape of the hole, an appropriate embedding member corresponding to the shape and cross-sectional area of the hole is used. The hole can be closed reliably and easily.

  A hole closing method according to claim 17 is a hole closing method using the hole closing embedded plug according to claim 1, wherein the plug member of the hole closing embedded plug is provided in the hole provided in the structure. A step of press-fitting the plug member from the second end surface side to a position where the hole does not penetrate the hole, and tightening the screw member to compress the plug member in the insertion direction between the washer member and the clamping flat plate member. And a step of expanding the plug member in a direction perpendicular to the insertion direction to close the hole.

  In the hole closing method using the hole closing plug according to claim 17, the plug member is press-fitted from the second end surface side to a position not penetrating the hole, the screw member is tightened, and the plug member is connected to the washer member. Since the hole is closed by compressing the flat plate member for tightening in the insertion direction and expanding the plug member, the hole can be closed very easily, quickly and reliably.

  The hole closing method according to claim 18 is a hole closing method using the hole closing embedded plug according to any one of claims 2 to 16, wherein the hole closing hole is embedded in the hole provided in the structure. A step of press-fitting the embedding member from the second end surface side until the embedding member of the plug does not penetrate the hole, and the screw member is tightened to separate the embedding member from another tightening flat plate member and a tightening flat plate And a step of compressing the plug member in the insertion direction and expanding the plug member in a direction orthogonal to the insertion direction to close the hole.

  In the hole closing method using the hole closing plug according to claim 18, the plug member is press-fitted from the second end surface side to a position not penetrating the hole, the screw member is tightened, and the plug member is separated into another flat plate. Since the member is compressed in the insertion direction between the member and the flat plate member for tightening and the plug member is expanded to close the hole, the hole can be closed very easily, quickly and reliably.

  The embedding plug for hole closing according to claim 19 is characterized in that the tightening flat plate member has a through wire attachment portion for facilitating the attachment of the wire.

  In the embedded plug for hole closing according to the nineteenth aspect, since the fastening flat plate member has the through-wire attaching portion, the attachment of the wire can be facilitated.

  According to the hole plugging plug and the hole plugging method using the hole plugging plug according to the present invention, it is possible to block the hole quickly and surely with a very simple and inexpensive structure. .

  Hereinafter, the best mode for carrying out the present invention (hereinafter referred to as an embodiment) will be described with reference to the drawings.

  1 (a) and 1 (b) are a front view and a cross-sectional view of an embedding plug for hole closure according to the first embodiment of the present invention, respectively, and FIG. 2 (a) and FIG. It is the perspective view seen from the left view and the back of the hole closure plug shown in FIG.

  The hole closing plug 100 of the first embodiment shown in FIGS. 1 (a), 1 (b) and 2 (a), 2 (b) is made of, for example, natural rubber, synthetic rubber, or a mixture thereof. The embedding member 101 made of an elastic body is provided. The plug member 101 has a truncated cone shape, and is formed such that the area of the first end face 101a as one end face is larger than the area of the second end face 101b as the other end face.

  Further, as can be seen from the cross-sectional view of FIG. 1 (b), the embedding member 101 is provided at the center of the embedding member 101 from the first end surface 101a toward the second end surface 101b, that is, as described later. A small-diameter hole 101c that penetrates the embedding member 101 is formed in the insertion method in the case of inserting 100 into the hole of the structure. The male screw portion 103a of the screw member 103 is loosely inserted into the small diameter hole 101c.

  As can be seen from FIG. 2A, the screw member 103 is a Phillips screw, and the screw head sandwiches the washer member 105 between the first end face 101a of the embedding member 101 as indicated by reference numeral 103b. Closely arranged and exposed.

  Further, a fastening flat plate member 107 made of, for example, plastic is disposed on the second end surface 101b of the embedding member 101 in close contact with the second end surface 101b. A small-diameter screw hole 107a is formed in the center of the flat plate member 107 for fastening, that is, in a portion corresponding to the small-diameter hole 101c of the embedding member 101. The male screw portion of the screw member 103 is formed in the screw hole 107a. The tip of 103a is screwed.

  Further, as can be seen from FIG. 1B, the flat plate member 107 for tightening is formed so as to protrude into the surface close to the second end surface 101b of the embedding member 101 so as to bite into the second end surface 101b. The second end face of the embedding member 101 has a latching portion 107b so that when the screw member 103 is tightened as will be described later, the tightening flat plate member 107 does not rotate around the embedding member 101. It is designed to bite into 101b.

  To block holes provided in a structure such as an outer peripheral side wall of a hollow concrete electric pole, a partition wall such as a manhole or a hand hole, using the hole closing embedded plug 100 configured as described above. As shown in FIG. 3 (a), the hole closing plug 100 of this embodiment is placed in front of the hole 199a provided in the structure 199 so that the tightening flat plate member 107 faces the hole 199a. Hold the hole plugging plug 100 by hand or the like. Then, in the insertion direction indicated by an arrow 97, the hole closing plug 100 is inserted into the hole 199a from the tightening flat plate member 107 side, that is, from the thin second end face 101b side of the truncated cone plug member 101. As shown in FIG. 3B, the hole closing plug 100 is inserted to the middle of the hole 199a, that is, to a position where the plug member 101 does not penetrate the hole 199a.

  3A and 3B, the hole closing plug 100 shown in FIGS. 3A and 3B completely closes the hole 199a of the structure 199, so that the cross-sectional area of the plug member 101 is the cross-sectional area of the hole 199a. The cross-sectional area of the first end surface 101a of the embedding member 101 is slightly larger than the cross-sectional area of the hole 199a. Then, the screw head 103b of the hole closing plug 100 having a slightly larger cross-sectional area is strongly pressed with a finger or the like, or a screwdriver 103b is fitted into the screw head 103b and driven with a hammer or the like. ), The plug member 101 is temporarily press-fitted into the hole 199a.

  The temporary press-fitting means that the hole 199a is not completely and sufficiently closed by the hole closing implant 100, and the hole closing plug 100 is simply press-fitted into the hole 199a and is sufficiently strong. It is not fixed and the hole 199a is not completely closed. Therefore, after the hole closing plug 100 is temporarily press-fitted into the hole 199a in this way, the screw member 103 is rotated by fitting a screwdriver 103 to the screw head 103b of the screw member 103, thereby tightening the screw member 103.

  When the screw member 103 is rotated and tightened in this way, the tightening flat plate member 107 is drawn toward the washer member 105 by the rotation of the screw member 103, and the embedding member 101 includes the tightening flat plate member 107 and the washer member. Compressed in the insertion direction. As a result, since the embedding member 101 is made of an elastic body, the embedding member 101 tends to expand in a direction orthogonal to the insertion direction, that is, the embedding member 101 is sandwiched between the clamping flat plate member 107 and the washer member 105. Since there is no escape area other than the direction toward the inner peripheral surface of the hole 199a, the embedding member 101 strongly presses the inner peripheral surface of the hole 199a in an attempt to expand in the direction toward the inner peripheral surface of the hole 199a. As a result, the hole 199a is completely closed by the plug member 101 to be expanded.

  FIG. 3 (b) shows a state in which the hole 199a is completely closed by the plug member 101 to be expanded as described above, but the structure 199 is made of a rigid member such as concrete. Therefore, even if the plug member 101 tries to expand in the hole 199a, the hole 199a is not deformed. Therefore, in FIG. 3B, the plug member 101 presses the inner peripheral surface of the hole 199a with an expansion force. Is also suppressed by the inner peripheral surface of the hole 199a, and the side surface of the plug member 101 is parallel to the inner peripheral surface of the hole 199a.

  As described above, the hole closing plug 100 of the present embodiment is extremely simple and inexpensive, such that the screw member 103 is simply clamped by sandwiching the plug member 101 between the washer member 105 and the clamping flat plate member 107. With the structure, the hole 199a can be closed quickly and reliably with good skill.

  4 (a) and 4 (b) are a front view and a cross-sectional view, respectively, of a hole closing embedded plug according to a second embodiment of the present invention. 5 (a) and 5 (b) are a left side view and a rear perspective view of the hole closing plug shown in FIG. 4, respectively.

  The hole closing plug 200 of the second embodiment shown in FIGS. 4A, 4B, 5A, and 5B is shown in FIGS. 1A, 1B, and 2A. ), Except that the plug member 101 is replaced with a plug member 201 having a large diameter in the hole closing plug 100 of the first embodiment shown in FIG. . Therefore, detailed description thereof is omitted.

  In the second embodiment, except for the fact that the dimensions are slightly increased, the components having the same functions as those in the first embodiment are denoted by the same reference numerals as those used in the first embodiment. Only the numbers in the platform are changed from “1” to “2”, and the constituent elements of the second embodiment are specified by using the same symbols for the tenth platform and the first platform. For example, the hole closing plug 100, the plug member 101, the screw member 103, the washer member 105, and the fastening flat plate member 107 in the first embodiment are respectively embedded in the hole closing implant. The plug 200, the plug member 201, the screw member 203, the washer member 205, and the tightening flat plate member 207 are formed.

  When the large hole 299a is opened in the structure 299 as shown in FIG. 6 by increasing the diameter like the plug member 201 of the hole plugging plug 200 of the second embodiment, It is valid.

  6 shows that, as a result of rotating and tightening the screw member 203 of the hole closing plug 200, the plug member 201 is compressed between the clamping flat plate member 207 and the washer member 205 in the insertion direction. Since the hole 299a drilled in the structure 299 made of a rigid member such as concrete is not deformed even though it expands in the orthogonal direction and strongly presses and closes the inner peripheral surface of the hole 199a, the embedding member The side surface 201 indicates a state of being parallel along the inner peripheral surface of the hole 299a.

  In the first and second embodiments, the hole closing plugs 100 and 200 have been described in the case where the plug members 201 and 101 have a circular cross section, but the present invention is not limited to this. The embedding members 101 and 201 have a cross-sectional shape similar to the shape of the holes 199a and 299a, and the area of the cross-section can be inserted into the holes 199a and 299a by press-fitting. The cross-sectional area may be a little larger than the cross-sectional areas of 199a and 299a, and the cross-sectional shape may be, for example, a rectangle.

  In the first and second embodiments, the embedding members 101 and 201 have a truncated cone shape (cone shape (cone shape in the first and second embodiments)) having a tapered cross-sectional area. However, the present invention is not limited to this, and a cylindrical body whose cross-sectional area in the direction perpendicular to the axial direction does not change may be used.

  Furthermore, in the first and second embodiments, the screw members 103 and 203 are plus screws, but the present invention is not limited to this, and may be, for example, hexagon socket bolts or minus screws. is there.

  In the first and second embodiments, the fastening flat plate members 107 and 207 are made of plastic. However, the present invention is not limited to this, and a screw hole is formed. Any solid material can be used, for example, a metal such as stainless steel or iron.

  7A, 7B, and 7C are a perspective view, a cross-sectional view, and a bottom view, respectively, of a hole closing embedded plug according to a third embodiment of the present invention.

  7 (a), 7 (b) and 7 (c), the hole closing plug 300 of the third embodiment is shown in FIGS. 4 (a), 4 (b), 5 (a) and 5 (b). In the embedding plug 200 for hole closing of the illustrated second embodiment, the truncated cone-shaped embedding member 201 is changed to a cylindrical embedding member 301, the diameter thereof is slightly increased, and the screw member 203 is In addition to changing from the Phillips screw to the hexagon socket head bolt 303, another clamping flat plate member 309 is newly provided between the washer member 205 and the first end surface 201a of the embedding member 201. When the flat plate member 309 for tightening is formed so as to protrude into the first end surface 301a on the surface in close contact with the first end surface 301a of the embedding member 301, when the hexagon socket head bolt 303 is tightened, The tightening flat plate member 309 is empty with respect to the plug member 301. That hook portion 309b which devour so as not interest the first end face 301a of the Caps member 301 is formed is different from the other configurations are the same as those of the second embodiment. Therefore, detailed description thereof is omitted.

  In the third embodiment, only the numbers in the hundreds of the reference numerals used in the second embodiment are changed from “2” to “3” in the constituent elements having the same functions as those in the second embodiment. The components of the third embodiment are specified by using the same signs for the tenth and the first platform. For example, the hole closing plug 200, the plug member 201, the screw member 203, the washer member 205, and the clamping flat plate member 207 in the second embodiment are respectively embedded in the hole closing implant. The plug 300, the plug member 301, the hexagon socket head bolt (screw member) 303, the washer member 305, and the tightening flat plate member 307 are provided.

  Like the hole plugging plug 300 of the third embodiment, a hexagon socket head bolt 303 is used as a screw member, and this hexagon socket head bolt 303 is rotated and tightened using a normal hexagon stick wrench (not shown). As a result, it can be tightened more strongly, and the hole formed in the structure can be more reliably closed.

  Further, like the hole closing plug 300 of the third embodiment, another clamping flat plate member 309 is provided between the washer member 305 and the first end surface 301a of the plug member 301. By increasing the area of the fastening flat plate member 309 compared to the washer member 205 of the second embodiment and making it sufficiently close to the area of the first end surface 301a of the embedding member 301, a hexagonal hole The compressive force with respect to the embedding member 301 between the fastening flat plate member 307 and another fastening flat plate member 309 by fastening the attachment bolt 303 can be increased. As a result, the embedding member 301 can be further expanded to further completely close the hole provided in the structure.

  8 (a) and 8 (b) show the expanded and compressed state of the hole closing plug 300 according to the second embodiment shown in FIGS. 7 (a), (b) and (c), specifically, the holes. In the state in which the closing plug 300 is not inserted into the hole of the structure, the hexagon socket head bolt 303 is tightened to narrow the space between the tightening flat plate member 307 and another tightening flat plate member 309. It is the perspective view and front view which show the compression expansion | swelling state of the plug member 301 which compressed the plug member 301 and was expanded by the side surface of the plug member 301 by this, ie, the outer peripheral surface of the plug member 301 in the drum shape outward. .

  That is, as shown in FIGS. 8A and 8B, the plug member 301 is compressed and expanded by tightening the hexagon socket head bolt 303 without inserting the hole closing plug 300 into the hole of the structure. In this case, it can be seen that the outer peripheral surface, which is a side surface of the normally straight plug member 301, is slightly swollen outward due to expansion, and has a slight arc shape.

  FIG. 9 shows that the hole closing plug 300 according to the third embodiment is press-fitted into the hole 399a provided in the structure 399 as described with reference to FIGS. As a result of rotating and tightening 303 with a hexagon stick wrench, the plug member 301 is compressed between the fastening flat plate member 307 and another fastening flat plate member 309 in a direction orthogonal to the insertion direction, that is, the press-fitting direction. Although the inner peripheral surface of the hole 399a expands and closes tightly, for example, the hole 399a formed in the structure 399 made of a rigid member such as concrete does not deform, so the side surface of the plug member 301 is The state which is parallel along the inner peripheral surface of the hole 399a is shown.

  In the third embodiment, the hole closing plug 300 is described as having a circular cross-section of the plug member 301. However, the present invention is not limited to this, and the plug member 301 is embedded. The plug member 301 may have a cross-sectional shape similar to the shape of the hole 399a, and the cross-sectional area may be slightly larger than the cross-sectional area of the hole 399a so that it can be inserted into the hole 399a by press-fitting. The cross-sectional shape may be a rectangle, for example.

  Further, in the third embodiment, the embedding member 301 is a cylindrical body having the same cross-sectional area, but the present invention is not limited to this, and a truncated cone whose cross-sectional area changes tapered. But that's fine.

  Furthermore, although the hexagon socket head cap screw 303 is used in the third embodiment, the present invention is not limited to this, and for example, a plus screw or a minus screw may be used.

  Further, in the third embodiment, the tightening flat plate member 307 is made of plastic, but the present invention is not limited to this, and is a solid material capable of forming a screw hole. Any material may be used, for example, a metal such as stainless steel or iron, and the tightening flat plate member 307 may be a nut member embedded in the screw hole 307a. .

  In 3rd Embodiment, although the external thread part 303a is formed over the whole bolt axial part of the hexagon socket head bolt 303, this invention is not limited to this, The hexagon socket head bolt 303 of The male screw portion 303a may be formed only in the portion near the tip.

  10 (a) and 10 (b) are a perspective view and a front view, respectively, of a hole closing plug according to a fourth embodiment of the present invention, and FIGS. 11 (a) and 11 (b) are diagrams. FIG. 10 is a cross-sectional view and a bottom view of the hole closing plug shown in FIG.

  10 (a), 10 (b), and 11 (a), 11 (b), the hole closing plug 400 of the fourth embodiment is shown in FIGS. 7 (a), 7 (b), 7 (c). In the hole closing plug 300 according to the third embodiment shown, the flat plate member 307c and the flat plate member 307c and the flat plate member 309 having the central portion bulged in the arcuate shape of the flat plate member 307 and the other flat plate member 309 are respectively provided. The fastening flat plate member 407 and the other fastening flat plate member 409, each having a member bulging portion 409c, are changed to a fastening flat plate instead of the screw hole 307a formed at the center of the fastening flat plate member 307. The nut member 411 is embedded halfway from the top of the flat plate member bulging portion 407c of the flat plate member 407 corresponding to the member 307 to the inside, and the portion where the nut member 411 is embedded halfway is tightened. The attached flat plate member 407 has 11 (a), a small-diameter hole 407d is formed, and in the third embodiment, a hexagon socket head bolt 303 having a male thread portion 303a formed over the entire bolt shaft is closer to the tip of the bolt shaft. The male threaded portion 403a is formed as shown in FIG. 11 (a) only in about one-third, and the bolt shaft 403d having no male thread is formed in the remaining two thirds near the screw head 403b. The other difference is the same as that of the third embodiment. Therefore, detailed description thereof is omitted.

  Note that in the fourth embodiment, only the numbers in the hundreds of the reference numerals used in the third embodiment are assigned to the components having the same functions as those in the third embodiment from “3” to “4”. The components of the fourth embodiment are specified by using the same reference numerals for the tenth and the first platform. For example, the hole plugging plug 300, the plug member 301, the hexagon socket head bolt 303, the washer member 305, the clamping flat plate member 307, and another clamping flat plate member 309 in the third embodiment are In the embodiment, the hole closing plug 400, the plug member 401, the hexagon socket head cap bolt 403, the washer member 405, the fastening flat plate member 407, and another fastening flat plate member 409 are provided. .

  In the hole closing plug 400 of the fourth embodiment, the fastening flat plate member 407 and the other fastening flat plate member 409 have a flat plate member bulging portion 407c whose central portion bulges in an arc shape and The flat plate member bulging portion 409c is provided, but by providing the flat plate member bulging portion 407c and the flat plate member bulging portion 409c in this way, the hexagon socket head cap screw 403 is tightened, and the tightening flat plate member 407 and When the plug member 401 is compressed with another fastening flat plate member 409, this compressive force is applied to the fastening flat plate member 407 and another fastening plate 407c and the flat plate member bulging portion 409c. Since it is applied to the fastening flat plate member 409, the fastening flat plate member 407 and the other fastening flat plate member 409 are not easily damaged even if they are strongly tightened, and the strength is increased.

  Further, as in the fourth embodiment, the center of the flat plate member 407 for tightening, that is, from the top of the central portion of the flat plate member bulging portion 407c bulging at the center of the flat plate member 407 for tightening to the inside. The fact that the nut member 411 is embedded in can significantly increase the strength as compared to the screw hole formed in the central portion of the plastic fastening flat plate member 307 as in the third embodiment, Even if the hexagon socket head cap screw 403 is strongly tightened, it is not damaged, and the reliability can be improved.

  Further, as in the fourth embodiment, the male threaded portion 403a of the hexagon socket head cap screw 403 is formed only in about one third of the portion near the tip, and the remaining two thirds of the portion near the screw head 403b. Is constituted by a bolt shaft portion 403d that does not form a male screw, and this bolt shaft portion 403d is inserted so as to occupy most of the small-diameter hole 401c of the embedding member 401 as can be seen from FIG. When the plug member 401 is compressed between the fastening flat plate member 407 and another fastening flat plate member 409 by tightening the hexagon socket head bolt 403, the male threaded portion 403a of the hexagon socket head bolt 403 is embedded. The hexagon socket head bolt 403 can be tightened smoothly without being caught on the inner peripheral surface of the small diameter hole 401c of the plug member 401.

  12A and 12B, the hole closing plug 400 according to the fourth embodiment is press-fitted into the hole 499a provided in the structure 499 as described with reference to FIGS. As a result, the plug member 401 is compressed between the fastening flat plate member 407 and another fastening flat plate member 409 in a direction orthogonal to the insertion direction, that is, the press-fitting direction. Although the inner peripheral surface of the hole 499a is inflated and strongly pressed to close, for example, the hole 499a drilled in the structure 499 made of a rigid member such as concrete is not deformed. The state which is parallel along the inner peripheral surface of the hole 499a is shown.

  In the fourth embodiment, the hole closing plug 400 is described as having a circular cross-section of the plug member 401. However, the present invention is not limited to this, and the plug member 401 is embedded. The plug member 401 may have a cross-sectional shape similar to the shape of the hole 499a, and the cross-sectional area may be slightly larger than the cross-sectional area of the hole 499a so that the cross-sectional area can be inserted into the hole 499a by press-fitting. The cross-sectional shape may be a rectangle, for example.

  Further, in the fourth embodiment, the embedding member 401 is a cylindrical body having the same cross-sectional area, but the present invention is not limited to this, and a truncated cone whose cross-sectional area changes tapered. The body is good.

  Furthermore, although the hexagon socket head cap screw 403 is used in the fourth embodiment, the present invention is not limited to this, and may be, for example, a hexagon head bolt, a plus screw, a minus screw, or the like. It is.

  In the fourth embodiment, the fastening flat plate member 407 extends from the top of the central portion of the flat plate member bulging portion 407c to the middle of the fastening flat plate member 407 in the thickness direction of the small diameter hole 407a. Although the nut member 411 is embedded, the present invention is not limited to this, and the nut member 411 penetrates the entire thickness of the tightening flat plate member 407 including the flat plate member bulging portion 407c. As such, it may be embedded.

  In the fourth embodiment, the male thread portion 303a is formed only in the portion near the tip of the hexagon socket head bolt 303. However, the present invention is not limited to this, and the bolt shaft portion of the hexagon socket head bolt 303 is provided. The male screw portion 403a may be formed over the entire 403d.

  FIG. 13 is a perspective view of a hole closing embedded plug according to a fifth embodiment of the present invention, and FIGS. 14 and 15 are for fastening constituting the hole closing embedded plug shown in FIG. 13, respectively. FIGS. 16A and 16B are a cross-sectional view and a back view of the flat plate member, and FIG. 16 is a cross-sectional view showing a usage state of the hole closing embedded plug of the fifth embodiment shown in FIG.

  The hole closing plug 500 of the fifth embodiment shown in FIGS. 13 to 16 is further tightened with respect to the hole closing plug 400 of the fourth embodiment shown in FIGS. 10 to 12. The flat plate member 407 is provided with two through-line attachment portions 507d that are hooks for attaching the through-line 507e. The size, shape, orientation, and attachment position of the line attachment portion 507d are not particularly limited. However, as shown in FIG. preferable.

  As described above, the hole plugging plug 500 of the fifth embodiment is the same as the hole plugging plug 400 of the fourth embodiment except that the through-line mounting portion 507d is mounted. This is the same as that of the fourth embodiment. Therefore, detailed description thereof is omitted.

  Note that in the fifth embodiment, only the numbers in the hundreds of the reference numerals used in the fourth embodiment are assigned to the components having the same functions as those in the fourth embodiment from “4” to “5”. The components of the fifth embodiment are specified by using the same reference numerals for the tenth and the first platform. For example, the hole closing plug 400, the plug member 401, the hexagon bolt 403, the washer member 405, the clamping flat plate member 407, and another clamping flat plate member 409 in the fourth embodiment are the same as those in the fifth embodiment. In the form, the hole closing plug 500, the plug member 501, the hexagon bolt 503, the washer member 505, the fastening flat plate member 507, and another fastening flat plate member 509 are provided.

  In the hole closing plug 500 according to the fifth embodiment, the fastening flat plate member 507 and the other fastening flat plate member 509 have a flat plate member bulging portion 507c having a central portion bulging in an arc shape, and Although the flat plate member bulging portion 509c is provided, by providing the flat plate member bulging portion 507c and the flat plate member bulging portion 509c in this manner, the hexagon bolt 503 is tightened, and the flat plate member 507 for tightening is separated. When the plug member 501 is compressed with the flat plate member 509 for tightening, this compressive force is applied to the flat plate member 507 for tightening and the other tightening via the flat plate member expanded portion 507c and the flat plate member expanded portion 509c. Since it is applied to the flat plate member 509, the tightening flat plate member 507 and the other flat plate member 509 are not easily damaged even if they are strongly tightened, and the strength is increased.

  Further, as in the fifth embodiment, the center of the flat plate member 507 for tightening, that is, from the top of the central portion of the flat plate member bulging portion 507c bulging at the center of the flat plate member 507 for tightening to the inside. The fact that the nut member 411 is embedded in can significantly increase the strength as compared to the screw hole formed in the central portion of the plastic fastening flat plate member 307 as in the third embodiment, Even if the hexagon bolt 503 is strongly tightened, the hexagon bolt 503 is not damaged and the reliability can be improved.

  Further, as in the fifth embodiment, the male screw portion 503a of the hexagon bolt 503 is formed only in about one third of the portion near the tip, and the remaining two thirds of the portion near the screw head 503b is formed in the remaining two thirds. A bolt shaft portion 503d that does not form a male screw is formed, and the bolt shaft portion 503d is inserted so as to occupy most of the small-diameter hole 501c of the embedding member 501, as can be seen from FIG. When the plug member 501 is compressed between the tightening flat plate member 507 and another tightening flat plate member 509 by tightening the hexagon bolt 503, the male screw portion 503 a of the hexagon bolt 503 has a small diameter of the plug member 501. The hexagon bolt 503 can be smoothly tightened without being caught on the inner peripheral surface of the hole 501c.

  Further, as shown in the back view of the fastening flat plate member 507 constituting the hole closing embedded plug 500 of FIG. 15, the back surface of the fastening flat plate member 507 has a plug member 501 which is a rubber elastic body. And the latching | locking part 507b for making integration stronger is provided. The latching portion 507b shown in FIG. 15 has a shape in which a triangular prism is placed sideways, but the shape and size thereof are arbitrary, and any shape that bites into the embedding member 501 may be used, and the arrangement thereof is also shown in FIG. As shown, it is not limited to a cross shape, and may be arranged in a rice character shape or scattered throughout. Note that the shape, size, arrangement, and the like of the latching portion are all the same in the first to fourth embodiments described above.

  FIG. 16 is similar to the hole 399a described in FIGS. 3A and 3B in the hole closing embedded plug 500 according to the fifth embodiment. First, with respect to the hole 599a provided in the structure body 599, FIG. One end of a through wire 507e inserted in advance in the hole 599a is passed through the wire attachment portion 507d and bound, and then the hole closing plug 500 is press-fitted into the hole 599a while pushing the through wire 507e into the hole 599a. Then, the hexagon bolt 503 is rotated and tightened with a wrench or the like. As a result, the embedding member 501 is compressed between the fastening flat plate member 507 and another fastening flat plate member 509 and expanded in the insertion direction, that is, the direction orthogonal to the press-fitting direction, and the inner peripheral surface of the hole 499a is expanded. Press firmly to close. However, since the hole 499a drilled in the structure 499 made of a rigid member such as concrete is not deformed, the side surface of the embedding member 501 is parallel to the inner peripheral surface of the hole 499a. 16 shows the state.

  In this way, by connecting the through wire 507e to the through wire attaching portion 507d, the hexagon bolt 503 is reversely rotated with a wrench or the like to release the compressed state of the embedding member 501, and the hole closing plug 500 is pulled out. In this case, the communication line 507e is also drawn out, so that workability can be greatly improved.

  In FIG. 16, the hole 599a provided in the structure 599 may be a hole provided in the wall, but is usually a pipe having a length of several meters to several hundreds of meters. The inside of the pipe line connecting between the manhole and the manhole will be temporarily installed.

  In the fifth embodiment, the hole closing plug 500 is described as having a circular cross-section of the plug member 501, but the present invention is not limited to this, and the plug is embedded. The plug member 501 may have a cross-sectional shape similar to the shape of the hole 499a, and the cross-sectional area may be slightly larger than the cross-sectional area of the hole 499a so that the cross-sectional area can be inserted into the hole 499a by press-fitting. The cross-sectional shape may be a rectangle, for example.

  In the fifth embodiment, the embedding member 501 is a cylindrical body having the same cross-sectional area, but the present invention is not limited to this, and a truncated cone in which the cross-sectional area changes tapered. The body is good.

  Furthermore, in the fifth embodiment, the hexagon bolt 503 is used in consideration of the versatility at the construction site. However, the present invention is not limited to this, for example, a hexagon socket head bolt or a plus Screws, slotted screws, or others may be used.

  In the fifth embodiment, the tightening flat plate member 507 includes a nut member 411 extending from the top of the central portion of the flat plate member bulging portion 507c to the inside of the small diameter hole 507a to the middle of the flat plate member 507 for tightening. However, the present invention is not limited to this, and the nut member 411 is embedded so as to penetrate through the entire thickness of the flat plate member 507 for tightening including the flat plate member bulging portion 507c. It may be.

  In the fifth embodiment, the male thread portion 303a is formed only in the portion near the tip of the hexagon bolt 303, but the present invention is not limited to this, and the entire bolt shaft portion 503d of the hexagon bolt 303 is provided. The male screw part 503a may be formed across.

(A), (b) is the front view and sectional drawing of the hole closure plug which concern on the 1st Embodiment of this invention, respectively. (A), (b) is the left view of the embedding plug for hole obstruction | occlusion of 1st Embodiment shown in FIG. 1, respectively, and the perspective view seen from back. (A), (b) is sectional drawing which shows the usage method and use state of the hole closure plug of 1st Embodiment shown to FIG. 1, 2, respectively. (A), (b) is the front view and sectional drawing of the hole closure plug which concern on the 2nd Embodiment of this invention, respectively. (A), (b) is the left view of the hole closure plug shown in FIG. 4, and the perspective view seen from the back, respectively. It is sectional drawing which shows the use condition of the embedding plug for hole obstruction | occlusion of 2nd Embodiment shown to FIG. (A), (b), (c) is the perspective view, sectional drawing, and bottom view of the hole closure plug according to the third embodiment of the present invention, respectively. (A), (b) is the perspective view and front view which show the expansion compression state of the hole closure plug according to 3rd Embodiment shown to Fig.7 (a), (b), (c), respectively. . It is sectional drawing which shows the use condition of the embedding plug for hole obstruction | occlusion of 3rd Embodiment shown to FIG. (A), (b) is the perspective view and front view of the hole closure plug which concern on the 4th Embodiment of this invention, respectively. (A), (b) is sectional drawing and bottom view of the hole closure plug shown in FIG. 10, respectively. It is sectional drawing which shows the use condition of the embedding plug for hole obstruction | occlusion of 4th Embodiment shown to FIG. It is a perspective view of the embedding plug for hole obstruction | occlusion which concerns on the 5th Embodiment of this invention. It is sectional drawing of the flat member for clamping which comprises the embedding plug for hole obstruction | occlusion shown in FIG. FIG. 14 is a rear view of a flat plate member for tightening constituting the hole closing plug shown in FIG. 13. It is sectional drawing which shows the use condition of the embedding plug for hole obstruction | occlusion of 5th Embodiment shown in FIG.

Explanation of symbols

100, 200, 300, 400, 500 Hole closing plug 101, 201, 301, 401, 501 Plug member 101c, 201c, 301c, 401c Small-diameter hole 103, 203, 503 Screw member 103a, 203a Male screw part 105 205, 305, 405 Washer members 107, 207, 307, 407, 507 Tightening flat plate members 107a, 207a, 307a, 507a Screw holes 107b, 207b, 307b, 309b, 407b, 409b, 507b Hooks 407c, 409c , 507c Flat plate member bulging portion 507d Through wire mounting portion 303, 403 Hexagon socket head bolt 303a, 403a Male screw portion 309, 409, 509 Another fastening flat plate member 403d Bolt shaft portion 407c, 507c Flat plate member bulging portion 409c, 509c Flat plate member bulging portion 41 , 511 nut member

Claims (19)

An embedding plug for hole closing inserted into a hole provided in the structure and closing the hole,
A plug member made of an elastic body that expands in a direction orthogonal to the insertion direction when the hole plugging plug is compressed in the insertion direction when inserted into the hole;
A small-diameter hole formed in the plug member so as to penetrate the plug member in the insertion direction;
A washer member disposed in close contact with the first end surface in the insertion direction of the plug member and having a small diameter hole formed in a portion corresponding to the small diameter hole penetrating the plug member;
A small-diameter hole that is disposed in close contact with the second end surface opposite to the first end surface in the insertion direction of the plug member so as to clamp the plug member with the washer member. A flat plate member for tightening in which a small-diameter screw hole is formed in the corresponding part, and the area is smaller than the area of the second end face of the embedding member;
A screw member that penetrates the small-diameter hole of the plug member from the small-diameter hole of the washer member, and is screwed into the screw hole of the flat plate member for tightening. And a screw member that is sandwiched between the member and the clamping flat plate member and compressed in the insertion direction to expand the plug member in a direction orthogonal to the insertion direction.   It is disposed between the washer member and the first end surface of the plug member in close contact with the first end surface of the plug member, and is formed in a portion corresponding to a small-diameter hole penetrating the plug member. When having a small screw hole, another flat plate member having an area larger than the area of the washer member and smaller than the area of the first end face of the embedding member, and tightening the screw member The embedding member is sandwiched between the another clamping flat plate member and the clamping flat plate member via the washer member, compressed in the insertion direction, and expanded in the direction perpendicular to the insertion direction. The hole closure plug according to claim 1.   The tightening flat plate member is formed in a portion in close contact with the second end surface of the embedding member, and when the screw member is tightened, the second end surface of the embedding member does not idle with respect to the embedding member. 3. The hole closing plug according to claim 1 or 2, further comprising a hook portion protruding so as to bite into the hole.   The another fastening flat plate member is formed in a portion in close contact with the first end face of the embedding member, and when the screw member is tightened, the first member of the embedding member does not idle with respect to the embedding member. 4. The hole closing plug according to claim 2, further comprising a hooking portion formed so as to protrude into the end surface of the hole.   The flat plate member for tightening is formed with a flat plate member bulging portion whose central portion bulges in an arc shape around the small-diameter screw hole on the surface opposite to the surface in close contact with the second end surface of the embedding member. The hole closure plug according to any one of claims 1 to 4, wherein the hole closure plug is provided.   The other flat plate member for tightening is formed with a flat plate member bulging portion whose central portion bulges in an arc shape around the small-diameter hole on the surface opposite to the surface closely contacting the end surface of the embedding member. The hole closure plug according to any one of claims 2 to 5, wherein   The flat plate member for fastening has a nut member embedded from the arcuate top of the bulging portion of the flat plate member into the flat plate member for fastening, and a plug member is provided in the screw hole of the nut member. 7. The hole closing plug according to claim 5, wherein a tip of a screw member penetrating through the small-diameter hole is screwed.   8. The hole closing plug according to claim 1, wherein the screw member is formed with a male screw portion only at a portion near the tip end that is screwed into the screw hole.   The hole closing plug according to any one of claims 1 to 8, wherein the screw member is a hexagon socket head cap screw or a Phillips screw.   The hole plugging plug according to any one of claims 1 to 9, wherein the plug member is made of natural rubber, synthetic rubber, or a mixture thereof.   11. The hole closing plug according to claim 1, wherein the tightening flat plate member is made of plastic.   12. The hole closing plug according to claim 2, wherein the another fastening flat plate member is made of plastic.   The hole plugging plug according to any one of claims 1 to 12, wherein the plug member is a truncated cone whose area of the first end face is larger than that of the second end face. .   The hole plugging plug according to any one of claims 1 to 13, wherein the plug member is a cylindrical body having a same cross section from the first end surface side to the second end surface side.   The embedding member has a cross-sectional shape perpendicular to the insertion direction similar to the shape of the hole provided in the structure, and the area of the cross-section is a hole that can be inserted into the hole by press-fitting. The hole closure plug according to any one of claims 1 to 14, characterized in that it is slightly larger than the cross-sectional area.   The hole plugging plug according to any one of claims 1 to 15, wherein the plug member is provided according to a cross-sectional area and a shape of a hole provided in the structure. A hole closing method using the hole closing embedded plug according to claim 1,
A step of press-fitting the embedding member from the second end face side to a position where the embedding member of the hole closing embedding plug does not penetrate the hole in the hole provided in the structure;
Tightening the screw member, compressing the plug member in the insertion direction between the washer member and the flat plate member for tightening, and expanding the plug member in a direction orthogonal to the insertion direction to close the hole; A hole closing method using a hole closing embedded plug characterized by comprising: A hole closing method using the hole closing embedded plug according to any one of claims 2 to 16,
A step of press-fitting the embedding member from the second end face side to a position where the embedding member of the hole closing embedding plug does not penetrate the hole in the hole provided in the structure;
The screw member is tightened, the plug member is compressed in the insertion direction between another clamping flat plate member and the clamping flat plate member, and the plug member is expanded in a direction perpendicular to the insertion direction to form the hole. A hole closing method using the hole closing plug.   The hole closing plug according to any one of claims 1, 3, 5, 7, and 11, wherein the tightening flat plate member has a through wire attachment portion that facilitates attachment of a wire.

Images