JP2686884B2 - Nail holding member - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nail holding member capable of strengthening a plate portion having a weak nail holding force to increase the nail holding force.

[0002]

2. Description of the Related Art When a relatively heavy article such as a forehead or a blackboard is to be suspended by screwing or driving nails into a wall made of gypsum board or plywood board, these boards have a nail holding power. It is routinely experienced that the nails quickly loosen and cannot achieve their initial objectives due to their weakness. By the way, the reason why plasterboard and veneer boards have poor nail holding power is that the interior of these boards is not formed densely, so once they are destroyed by screwing in the nails, etc. It is because destruction in the body is easy to proceed.

The present inventor has conducted extensive studies in view of such conventional problems, and as a result, the curable resin liquid is permeated into the peripheral portion of the hole formed by screwing or driving the nail, and the peripheral portion is hardened by the curing. He conceived the technical means to firmly fix the nail and prevent the destruction of the hole portion, and thereby firmly hold the nail.

The present inventor has further developed this technique and proposed it as a nail holding member shown in FIG. The nail holding member includes a nail insertion cylinder b that is inserted into the hole a of the plate portion. The tubular body b is provided with a dividing line d over the entire length of the vacant chamber c, and is close to the base end of the tubular body b.
Near sites outflow hole e for discharging the curable resin liquid is formed. Further, at a portion of the outer surface of the cylindrical body that is on the front side of the outflow hole, an annular protrusion f whose outer peripheral edge portion can substantially contact the inner peripheral surface of the hole surrounds the periphery of the cylindrical body b. It is formed so as to project in the state, and exhibits the following excellent operational effects.

That is, when the nail holding member g is inserted into the hole a provided in the plate portion (plate portion having a weak nail holding force), the outflow hole e for outflowing the resin liquid faces the inner peripheral surface portion of the hole a. Further, an annular space h is formed outside the proximal end outer peripheral surface of the cylindrical body b so as to surround it (FIG. 11). Therefore,
By supplying the resin liquid to the empty chamber c, the resin liquid flowing out from the outflow hole e can be effectively guided in the circumferential direction in the annular space h and can be sequentially permeated into the peripheral portion of the hole a. . Then, by the subsequent hardening of the permeation resin liquid, the hole peripheral portion (hatched portion in FIG. 12) k becomes a dense structure, and the nail holding member g is integrated with this dense structure. Due to such integration, a large resistance force is generated against the force in the pulling direction of the screw nail held by the nail holding member.

For this reason, when the nail holding member is used, even when a relatively heavy article such as a forehead or a blackboard is suspended from a plate portion such as a gypsum board having a weak nail holding force. , It became possible to hang it while maintaining a stable state.

[0007]

As described above, the nail holding member proposed by the present inventor can exhibit extremely excellent nail holding power, and is composed of a gypsum board or a plywood board having a weak holding power. For example, it has come to exert an effect of stably supporting the forehead, the blackboard, the hanging shelf, etc. on the wall portion, but the following problems have occurred in actual use. That is, using the nail holding member, fixed to the wall of the gypsum board by inserting a nail (Heaton or the like) into it, hanging a heavy object on it, removing it repeatedly, when this nail holding member, There was a situation in which this gypsum board and the surrounding gypsum board fell off.

Therefore, the present inventor analyzed this phenomenon,
As a result of the research, the following findings were obtained. That is, when looking at the state in which the above-mentioned nail holding member has fallen off, the amount of gypsum board attached to the tip side of the nail holding member was small, and a large amount of gypsum board was attached to the base end side, that is, the wall surface side. When this is illustrated, it has a truncated cone shape as shown in FIG.

Initially, the gypsum board is drilled with a cylindrical hole. The state of impregnation of the resin that has penetrated from the nail holding member inserted into this in the direction around the hole is shown in FIG.
As shown in FIG. 5, it was found that the base end of this hole was slightly deep and the tip side was slightly shallow, so that the holes were impregnated to a substantially uniform depth. In other words, the nail holding member is fixed to the gypsum board with a substantially uniform carrying force over the entire length from the tip end side to the base end side. Therefore, when the nail holding member is pulled out through the nail fixed to the nail holding member, the surface side of the plaster board, which is easily broken, is large and the inside becomes a truncated cone shape, and the hardened peripheral portion It comes off with the gypsum board.

[0010]Therefore, at the tip side of the nail holding member,
Delivers even greater holding power while allowing various resin impregnations
About what kind of means should be adopted to
Various experiments were repeated. As a result, the impregnation action is deeper toward the tip side.
Is obtained, and this impregnation action hardens
Make sure that the nail holding member is fully supported on the texture of the converted gypsum board.
In order to achieve this, a structure that can exert an anchoring action should be
It has been found that it is preferable to provide it on the tip side. This
In order to exert the sinker effect, the catch protrusions
It is necessary to provide such a protruding portion with a nail holding member.
If it is configured to project in advance on the tip side of the
The nail holding member cannot be inserted into the hole of the plate portion. This question
To solve the problem, after the prescribed insertion into the hole, the protrusion
It is equipped with a mechanism that can form the protrusion on the front end side of the nail holding member.
The resin can be sufficiently impregnated around the formed protrusion.
It should be configured so that it can be used. To do that,
A foldable structure is sufficient, but such a complicated structure
The structure is a simple resin molding and the tip is considerably small.
It is very difficult to install on the nail holding member that is formed
However, there remains a problem that the cost is high. Therefore, simple
As a solution, the nail protection that the present invention aims to improve
Ring used in holding member (shown in FIGS. 11 and 12)
Use a design solution that uses a protrusion
Thought. That is, make this annular protrusion larger than usual
The design change to make the structure is made and the insertion hole of the nail holding member is added.
When it is inserted into the
Form a plate or bag and use it as an anchor
I thought so. However, this annular protrusion is simple
The method used for has brought about the following new problems.  Ring formed when the cylinder is inserted into the hole of the gypsum board
Long protrusion length (bending amount when inserting into hole)
If you try to form a saucer of sufficient depth,
If it is shaped like a wrinkle or wavy,
There is a space between the inner edge of the disc edge and the inner wall of the hole.
There was a problem that the pressing force was weakened and the anchor action was weak.  This is a method of bending the outer peripheral edge of the disk-shaped body, so
All the saucer or bag-like body will be formed, and the curable resin liquid
The resin liquid flows out properly from the saucer or bag and the resin liquid
It is not possible to expect that it will wrap around to the surface side,
The integration of the dish or bag and the inner wall of the hole is weak, and the tip of the cylinder
There was a problem that the anchor action in the part was weak.  Also, the folding length of the annular protrusion (when bending into the hole
Try to form a saucer with a sufficient depth
Naturally, the radius of the annular protrusion increases, and as a result
A problem that makes it difficult to insert the nail holding member into the hole of the gypsum board.
There was a title. The present inventor is based on the new findings described above.
At the same time, we reviewed the problems of the above-mentioned improvement plan and
The completion of the new nail holding member is confirmed by reaching the step.
It is a serious thing. The present invention is a section of such prior art.
The problem is solved and the holding force of the nail holding member against the plate is increased.
The nail holder does not easily fall off even when a large load is applied.
The purpose is to provide the material.

[0011]

The nail holding member according to the present invention adopts the following means in order to achieve the above object. That is, the nail holding member according to the present invention includes a nail insertion cylinder 6 that is inserted into a hole 3 provided in a plate portion and that is formed long from the base end to the tip. Is provided with an empty chamber 5 which is long in the axial direction of the tubular body and opens at the proximal end of the tubular body, and an outflow for letting out the curable resin liquid flows out in the vicinity of the proximal end of the tubular body. A hole 11 is formed, and a portion of the outer peripheral surface of the cylindrical body located closer to the tip side than the outflow hole is an annular projection 15 that surrounds the periphery of the cylindrical body.
In the nail holding member in which the plurality of flexible bag-forming wing pieces 17 are radially projected in the vicinity of the tip of the tubular body 6, the bag-forming wing pieces are A bag-shaped portion that is bent toward the proximal end side of the tubular body when the tubular body is inserted into the hole and has an opening toward the proximal end side of the tubular body between the tubular body and the outer peripheral surface portion of the tubular body. It is characterized in that it is configured to form 19.

[0012] Note that the tubular body 6 constituting the nail holding member is a pitch equal <br/> angles, from the base end of the cylindrical body 6, the split line extending in the longitudinal direction of the as the cylindrical body over the vicinity of the tip It may be divided by 31, and in that case, the annular protrusion 15 is also divided according to the divided portion of the cylindrical body.

A second object of the present invention is that the nail holding member tube body 6 is constructed not by a tubular integral body but by a half piece combination as follows, which is advantageous in manufacturing. Is to get.

In order to achieve this purpose, the cylindrical body 6 is
It is configured by a pair of half-split pieces 7, 7 which are connected to each other at their distal ends so as to be bendable and which are split in two at a surface including the axis of the cylindrical body. Then, the outflow holes 11 for outflowing the curable resin liquid are in contact with each other at the split surfaces of the two half halves.
At least formed in a coalesced state. Further, the annular projection portion is constituted by collar portions 16 and 16 formed in a semi-circular shape corresponding to the half split pieces 7 and 7, and the bag forming wing piece 1
At least three pieces 7 are provided on each of the half pieces.

When the nail holding member is composed of a pair of half-split pieces, the outflow holes 11 may be formed by notches 12 formed on the split surfaces of each half-split piece.

[0016]

Next, the operation of the present invention will be described with reference to gypsum board (plate portion 2).
The case where a wood screw (nail 22) is screwed into the through hole (hole 3) provided in the above will be described as an example. First, the nail holding member 1 is inserted into the hole 3 formed in the desired portion of the plate portion 2, and the base end outer peripheral edge portion 25 of the tubular body 6 is inserted into the base end inner peripheral edge portion 3 of the hole 3.
It is almost in contact with a1. In this state, in a normal case, the tip portion 26 of the bag-forming wing piece 17 has the inner peripheral surface portion 3a2 on the tip side of the hole 3 in view of the length of the nail holding member selected in advance in relation to the thickness of the plate portion. The bag-shaped portion 19 is restricted by the bulge and is expanded to the back side of the plate portion (FIG. 7). After that, when the curable resin liquid is supplied from the supply tip 28 of the resin liquid supply device to the empty chamber 5 of the cylindrical body 6, the supplied resin liquid is supplied to the peripheral portion 32 of the hole 3.
It gradually penetrates in the radial direction. At the same time, a part thereof flows into the bag-shaped portion 19.

A supplementary explanation of the permeation and inflow of the resin liquid is as follows. The outer peripheral edge portion 13 of the annular projection 15 is substantially in contact with the inner peripheral surface portion of the hole of the plate portion 2, and the proximal outer peripheral edge portion 25 of the cylindrical body 6 is the proximal inner peripheral edge portion 3 of the hole 3.
Since it is in a state of substantially abutting with a1, the annular space portion 29 is provided outside the base end outer peripheral surface portion of the cylindrical body 6 so as to surround it.
a is formed. Particularly, when a plurality of annular protrusions 10 are provided at intervals, the adjacent annular protrusions 15 and 1
An annular space 29b is formed between the five. Therefore, the resin liquid supplied to the empty chamber 5 flows out from the outflow hole 11 into the annular space portion 29a, and also flows into the annular space portion 29b as the supply proceeds, and the peripheral portion 3 of the hole 3
2 will be sequentially permeated in the radial direction. At the same time, part of the resin liquid that flows out also flows into the bag-shaped portion 19. Since the bag-shaped portion 19 also acts to prevent the outflow of the resin liquid, the permeation range of the resin liquid tends to widen in a portion closer to the back side of the plate portion as shown by hatching in FIG. By the way, in the above-mentioned conventional nail holding member having no bag-shaped portion, the penetration range of the resin liquid on the back side of the plate portion is relatively narrow (for example, FIG. 12). When a gap G is formed in the side surface of the bag-shaped portion as shown in FIG. 8, a part of the resin liquid that has flowed into the bag-shaped portion 19 flows out of this gap and a portion of the bag-shaped portion. Adheres to the outer surface of the.

Particularly, the cylindrical body 6 and the annular projection 15 are formed by the dividing line 3.
When the screw nail 22a is screwed into the vacant chamber 5 while being divided by 1, the dividing line 31 gradually opens due to this screwing, and the resin liquid remaining in the vacant chamber 5 is emptied from the opened dividing line portion 31a. Outflow into the portions 29a, 29b, the holes 3
Will penetrate into the surrounding area.

By the subsequent hardening of the resin liquid, the peripheral portion 32 of the hole is modified into a dense structure that spreads wider toward the back side of the plate portion, and the nail holding member is integrated with this dense structure. at the same time,
By the bag-shaped portion 19 being solidified with the resin liquid, the bulging portion 33 integrated with the dense tissue is formed on the back side of the plate portion.

However, with respect to the force in the pulling direction of the screw nail held by the nail holding member, the bulging portion 33 and the annular protruding portion 15 exert an anchoring action to bring them into engagement with the dense tissue, It is very difficult for the nail holding member to slip out of the dense tissue, and the dense tissue itself, which spreads toward the back side of the plate, is the anchor portion for the unmodified dense tissue, which provides a large resistance. Occur.

For this reason, if the screw nail falls off from the plate portion, it means that the screw nail is broken around the screw nail as shown by the alternate long and short dash line in FIG. 8 (when the plate portion is made of gypsum board, , Exhibiting a funnel-shaped fracture surface). Even when the conventional nail holding member is used, considering the case where the plate portion is made of gypsum board, for example, the falling of the screw nail from the plate portion exhibits a funnel-shaped fracture surface as shown by the one-dot chain line in FIG. It tends to occur due to all fractures. However, according to the present invention, since the degree of expansion of the dense tissue at the tip of the hole is large, the fracture occurs at a portion far from the nail holding member, and the area of the funnel-shaped fracture surface is further increased. Become. The difference in the area of the fracture surface A is shown in FIGS. In other words, according to the present invention, the nail holding force is further improved as compared with the conventional type.

[0022]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4, the nail holding member 1 according to the present invention is inserted and fixed in a hole 3 (see FIG. 6) provided in a plate portion 2 made of gypsum board, veneer board, synthetic wood board or the like having a weak nail holding power, for example. A cylindrical body 6 for inserting a nail, which is made of a synthetic resin such as polyethylene and has an empty chamber 5 having a base end opening therein.
And a pair of halves 7 and 7 that can be formed by merging and that are bendably connected at the tip. The pair of half pieces 7,7, Ru Oh obtained by dividing at equal divided angles (180 ° vs. 180 °) over the tube body 6 on its substantially entire length.

The halves 7, 7 have the same structure,
It is formed in a tapered gutter shape having a semi-circular cross section, and an outflow hole 11 for outflowing a resin liquid (curable resin liquid) is formed in the vicinity of the base end thereof, and each half-split piece. 7,
A semi-circular arc-shaped notch 12 is formed in the opposite side edge portions 10, 10 on the base end side of 7 to form an outflow hole 11 for outflowing the resin liquid (FIG. 1).

Further, when the two halves 7 and 7 are united, the outer peripheral edge portion 13 can substantially abut the inner peripheral surface portion 3a of the hole (the one near the base end in FIG. 7 is in a bite-in state). The outer surface of each of the half halves 7, 7 is formed such that the annular projection 15 is formed so as to surround the periphery of the tubular body 6 and to be located at a position further forward than the outflow hole 11. A plurality of semi-annular flange portions 16 are formed on the portion so as to project at required intervals in the length direction of the half-split pieces. In addition, in the present embodiment, damage to the hole due to the annular projection 15 when inserting the nail holding member 1 into the hole 3 (damage such as chipping of a part of the hole when the plate portion 2 is a gypsum board) is prevented. For the purpose of preventing the nail as much as possible and improving the nail holding force, and for the purpose of facilitating the insertion of the nail holding member 1 into the hole 3, the collar portion 16 is formed so that the annular projection has a smaller diameter toward the tip of the tubular body. It is preferable to set the amount of overhanging and to form a virtual taper cylinder shape by the outer edge of the collar portion.

Further, each of the half pieces 7 and 7 has an outer surface portion.
In addition, flexible bag-forming wing pieces (for example, the ones on both sides have a fan shape and the ones on the center have a rectangular shape) 17 project on the sides and the center of the tip of the half-split piece. Has been formed. The bag-forming wing piece 17 includes two half-split pieces 7,7.
When the distal end portion is narrowed in the united state (as described later, the tubular body is inserted into the hole and the bag-forming wing body is bent toward the tubular base end side), The shape and dimensions are set so that a bag-shaped portion (which may have a slight gap in the side surface portion) 19 that opens toward the base end side of the cylinder is formed (FIG. 4).

Next, an example of use of the nail holding member 1 having the above structure will be described. 5 to 9 show a plate 21 having a hanger portion 20 integrally provided at the lower end thereof, a plate 2 as a wall portion made of, for example, a plaster board, and a nail 2 as a screw nail 22a.
2 shows an example of use in the case of fixing using 2. First, as shown in FIG. 6, a hole (through hole) 3 is formed using a drill.

After that, the pair of half-split pieces 7 and 7 are attached to the groove 2.
The nail holding member 1 (FIG. 1) is formed by uniting 3 and 23 so as to face each other, and this is inserted into the hole 3, and as shown in FIG. The hole 3 is in a state of being substantially in contact with the inner peripheral edge portion 3a1 of the base end. In FIG. 7, the tip portion 26 of the bag forming wing piece 17 is restricted by the inner peripheral surface portion 3 a 2 on the tip side of the hole 3 in view of the length of the nail holding member which is selected in advance in relation to the thickness of the plate portion. The bag-shaped portion 19 bulges to the back side of the plate portion. In this inserted state, as described in the above "Operation", the outer circumference of the cylindrical body 6 on the base end side.
An annular space portion 29a is formed so as to surround the surface portion , and the annular space portion 29 is also formed between the adjacent annular protrusions 15 and 15.
b is formed.

After that, as shown by the alternate long and short dash line in FIG. 7, the supply tip 28 of the resin liquid supply device is inserted into the vacant chamber 5, and the base end opening of the vacant chamber 5 is sealed with the elastic packing material 24. Then, when the curable resin liquid is supplied to the empty chamber of the cylindrical body 7,
The supplied resin liquid flows out from the outflow hole 11, flows into the annular spaces 29a and 29b, and sequentially permeates in the peripheral portion of the hole 3 in the radial direction. A part of the resin liquid that has flowed out flows into the bag-shaped portion 19. Immediately after supplying the required amount of resin liquid, FIG.
As shown in FIGS. 9 to 9, when the screw nails 22a that are inserted through the through holes of the plate 21 are screwed into the empty space of the tubular body 6, the screwed nails 22a serve as abutting portions between the split surfaces of the half- split pieces 7 and 7. The dividing line 31 gradually opens, and the resin liquid remaining in the vacant chamber 5 flows into the spaces 29a and 29b from the opening dividing line portion 31a and permeates into the peripheral portion 32 of the hole 3. At the same time, a part thereof flows into the bag-shaped portion 19. A part of the resin that has flowed into the bag-shaped portion flows out from the gap G on the side surface of the bag-shaped portion and adheres to the outer surface of the bag-shaped portion. Since the bag-like portion 19 also acts to prevent the outflow of the resin liquid, the permeation range of the resin liquid tends to increase as it approaches the back side of the plate portion as shown by hatching in FIG. Become.

By the subsequent hardening of the resin liquid, the hole peripheral portion 32 shown by hatching in FIG. 8 has a dense structure, and the nail holding member is integrated with this dense structure. At the same time, the inside and outside of the bag-shaped portion 19 are solidified with the resin liquid (FIG. 9), so that the bulging portion 33 is formed in a state of spreading around the hole tip portion. For this reason, the nail holding force can be increased for the same reason as explained in the above section.

FIG. 10 shows a case where the nail holding member 1 is inserted into the hole 3 as a blind hole, and when the nail is inserted into the vacant chamber 5 after the resin liquid is supplied to the vacant chamber 5, it is as shown by a chain line. The bulge 33 is formed. Then, as in the case of the use example, the nail holding force is increased.

FIG. 15 shows another embodiment of the nail holding member 1, in which the tubular body 6 is formed in a cylindrical shape and a plurality of annular projections 15 are arranged in parallel in the longitudinal direction of the tubular body. The diameter of the collar portion forming the row of protrusions is set so as to gradually decrease toward the tip, and the outer edge of the protrusion forms a virtual tapered cylinder.

[0032]

【The invention's effect】The present invention exerts a strong anchoring action.
In order to make it possible, as shown in FIG.
Penetration of a shape (This penetration is a shape with a wide base on the inside side.
The present invention provides a nail holding member to be improved by the present invention.
The state which is the reverse of the permeation state shown in FIG. 12) is obtained.
In order to achieve this, a structure in which a bag-shaped part is formed on the tip side of the cylinder is adopted.
In addition, such a bag-shaped part can be poled with a simple structure.
Multiple flexible bag-forming wings to form
The pieces are projected radially. And the bag shape
By the bag-shaped portion formed by bending the wing piece,
The nail holding member can be sufficiently supported in the inverted conical penetration part.
There is a feature in doing so, as a result, the following
It works.  A plurality of flexible bag-forming wings are radially projected.
Therefore, they can freely slide and displace in the circumferential direction, so that
It is caused by using the flexure of the disk-shaped annular protrusion.
Wrinkles and the formation of corrugations can be avoided, and the outside of the formed bag-shaped part
The contact area of the surface with the inner wall of the hole does not decrease.
The contact pressure against the inner wall of the hole does not decrease
It is possible to further promote the permeation action of the chemical resin solution.  Curable resin liquid is applied by multiple flexible bag-forming wings
While pooling a large amount in the bag-shaped part, is it a joint of the bag-forming winglets?
And gradually let it flow out to the outside,
Minutes, further strengthening the integration of the inner wall of the hole and the bag-forming winglet.
Can bring out a strong nail holding power
You.  Make the bag-shaped part that exerts the anchor action relatively large
In addition, the plurality of flexible bag-forming wings that compose the
Curved at the base. Therefore, if you insert it into the hole
The same resistance as a conventional disk-shaped annular protrusion.
It can be inserted smoothly without any problem. There
Then, these effects will be described in detail below. (A) The nail holding member according to the present invention adopts the above configuration.
As a result, the nails are retained in the holes provided in the plate (the plate with weak nail retention).
When the holding member is inserted, the outflow hole for resin liquid outflow will be
The outer peripheral surface of the base end of the cylindrical body while facing the surface
On the outside of the, there is an annular space that surrounds it.
And the bag-shaped part is formed at the tip of the hole
Becomes

Therefore, according to the present invention, the resin liquid flowing out from the outflow hole along with the supply of the resin liquid into the cylindrical void and the insertion of the nail into the void can be guided circumferentially in the annular space. it can. In particular, when the dividing line is provided, the resin liquid flowing out from the open dividing line portion can also be guided in the circumferential direction in the annular space portion. Because of this, the resin liquid can be sequentially permeated into the peripheral portion of the hole. At that time, the bag-like portion acts so as to prevent the outflow of the resin liquid even when the hole of the plate portion is a through hole, and the resin liquid is spread in a wider radial direction in the hole peripheral portion at the tip end portion of the hole. Permeate through. By the subsequent resin liquid curing,
A dense structure can be formed around the hole, and the nail holding member can be integrated with the dense structure. At the same time, the bulging portion can be formed at the tip portion of the hole by hardening the resin liquid of the bag-shaped portion.

However, according to the present invention, not only the annular projection but also the bulging portion is brought into engagement with the dense tissue against the force in the pulling-out direction of the nail integrally held by the nail holding member. , The anchor action makes it very difficult for the nail holding member to slip out of the dense tissue, and the dense tissue itself with a large spread at the tip of the hole is an anchor for the unmodified non-dense tissue. Since it becomes a part, a large resistance force is generated.

Therefore, if the nail comes off from the plate portion, it tends to occur due to breakage of the peripheral portion of the nail holding member. This is remarkable when the plate portion is made of gypsum board and the nails are screw nails.

Even when a conventional nail holding member is used, when the plate portion is made of gypsum board and the nail is a screw nail, the falling of the nail tends to occur due to the breakage of the peripheral portion of the nail holding member. . However, according to the present invention, since the dense tissue spreads at the tip of the hole to a greater extent, the fracture occurs at a portion further away from the nail holding member, and the area of the fracture surface becomes larger. In other words, according to the present invention, the nail holding force is further improved as compared with the conventional type.

(B) In the nail holding member according to the present invention, since the flexible bag-forming blade is provided at the tip end side portion of the outer surface of the cylindrical body, the nail holding member is inserted into the hole of the plate portion. The bag-shaped portion is naturally formed, and the bulging portion is formed by curing the resin liquid flowing into the bag-shaped portion. As described above, the structure for forming the bulging portion in the present invention is very simple.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a nail holding member according to the present invention.

FIG. 2 is a perspective view showing a state in which a pair of half-split pieces forming a nail holding member are bendably connected at their tip ends.

FIG. 3 is a perspective view showing a state in which a pair of half-split pieces forming a nail holding member are bendably connected at their tip ends.

FIG. 4 is a perspective view illustrating a bag-shaped portion formed by narrowing the tip portion of the bag-forming wing piece.

FIG. 5 is a perspective view showing a state in which a plate having a hanger portion is fixed to a plate portion made of gypsum board with screw nails.

FIG. 6 is a cross-sectional view illustrating a hole provided in a plate portion.

FIG. 7 is an explanatory diagram illustrating a state in which a nail holding member is inserted into a hole of a plate portion.

FIG. 8 is an explanatory diagram illustrating a state in which a nail holding member that holds a screw nail is integrated with a dense tissue around a hole.

FIG. 9 is an explanatory diagram illustrating a bulge portion.

FIG. 10 is an explanatory view illustrating a state in which a nail holding member is inserted into a blind hole.

FIG. 11 is an explanatory diagram illustrating a conventional nail holding member inserted into a hole of a plate portion.

FIG. 12 is an explanatory diagram illustrating the operation of a conventional nail holding member.

FIG. 13 is a perspective view illustrating a broken state of the plate portion when the nail holding member according to the present invention is used.

FIG. 14 is a perspective view illustrating a fractured state of a plate portion when a conventional nail holding member is used.

FIG. 15 is a cross-sectional view for explaining another embodiment of the nail holding member when it is inserted into the hole of the plate portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Nail holding member 2 Plate part 3 Hole 5 Vacancy 6 Cylindrical body 7 Half piece 11 Outflow hole 12 Notch part 15 Annular protrusion part 16 Collar part 17 Bag forming wing piece 19 Bag part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References: Kaihei Hei 2-122206 (JP, U) JP 62-33447 (JP, B2)

Claims (4)

(57) [Claims] 1. A tubular body 6 for inserting a nail, which is inserted into a hole 3 provided in a plate portion and is formed long from the base end to the tip, is provided inside the tubular body 6. Is provided in the vicinity of the base end of the cylindrical body, and an outflow hole 11 for allowing the curable resin liquid to flow out is formed in the vicinity of the base end of the cylindrical body. In the nail holding member, the annular projection 15 is provided so as to surround the periphery of the tubular body at a portion of the outer peripheral surface portion of the tubular body located closer to the tip side than the outflow hole. A plurality of flexible bag-forming wing pieces 17 are radially provided in the vicinity of the tip of the tubular body 6 so as to project when the tubular body is inserted into the hole. Is bent toward the base end side of the tubular body to form a bag-like portion 19 having an opening toward the base end side of the tubular body between the outer peripheral surface portion of the tubular body. Nail holding member, characterized in that it is configured urchin. 2. The nail holding member according to claim 1, wherein the tubular body 6 is a split line extending in the longitudinal direction of the tubular body from the base end of the tubular body 6 to the vicinity of the tip end at an equal angular pitch. The nail holding member is divided by 31 and the annular protrusion 15 is also divided according to the divided portion of the cylindrical body. 3. The nail holding member according to claim 1, wherein the tubular body 6 is divided into two by a surface including the axial line of the tubular body, which is flexibly connected at its tip end portion. 7 is configured drives out, the outflow hole 11 is split of the two half pieces
The protrusions are at least formed in a united state in which they are in contact with each other, and the annular protrusion 15 is composed of collars 16 and 16 formed in a semi-annular shape corresponding to the halves 7 and 7. And a nail holding member in which at least three bag-forming wings 17 are provided on each of the half pieces. 4. The nail holding member according to claim 3, wherein the outflow hole 11 has a cutout portion 12 provided on a split surface of each half-split piece.
The nail holding member formed by.