JPH11159292A - Joint structure of construction member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide joint structure of construction members that can positively enlarge the diameter of a fixed blade member while suppressing boring work to a male-type fit-in part required to enlarge the diameter of the fixed blade member, to a minimum. SOLUTION: A protruding end part of a male-type fit-in part 4 in joint structure 1 is provided with a fixed blade member 6 enlargeable in diameter with a diameter enlarging insert hole 7 formed inside. Inside a female-type fit-in part 5, a diameter enlarging member 9 fitted into the diameter enlarging insert hole 7 of the fixed blade member 6 to enlarge a diameter is fitted in a protruded state to a bottom part 8a of a fit-in hole 8 into which the fixed blade member 6 of the male-type fit-in part 4 is fitted. With the diameter enlarging member 9 thus provided in the female-type fit-in part 5, the diameter enlarging member 9 can be formed with minimum boring work, and the male-type fit-in part 4 and female-type fit-in part 5 can be positively fitted by the diameter enlarging member 9 provided in the female-type fit-in part 5, that is, both construction members 2 can be positively jointed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a male fitting portion projecting from a joint surface of each construction member used for lining or the like in a shield method and inserted into a female fitting portion opened in the joint surface. The present invention relates to a joining structure configured so that each construction member can be joined by expanding a part of a mold fitting portion in a female fitting portion.

[0002]

2. Description of the Related Art Conventionally, this kind of joint structure is shown in FIG.
As shown in the figure, the male fitting portion 31 provided on one of the building members 30
Female blade fitting part provided with the fixed blade 32 of the other construction member 30
By inserting the fixed blade 32 into the fitting ring 34 of the female fitting portion 33 by inserting the fixed blade 32 into the fitting ring 34 of the female fitting portion 33, By fitting the male fitting part 31 to the female fitting part 33,
Are generally known.

The diameter of the fixed blade 32 is increased such that the fixed blade 32 provided at the distal end of the anchor member 35 as the male fitting portion 31 is inserted into the fitting ring 34 of the female fitting portion 33. As it is inserted, the distal end cone 36, which is a diameter-enlarged portion movably provided in the anchor member 35, protrudes from the fixed blade 32 and enters the inside of the fixed blade 32.

[0004]

In the conventional joining structure described above, the fixed fitting blade and the tip cone are provided at the male fitting portion. That is, the male fitting portion is, as shown in FIG.
An anchor member 35 provided with a fixed blade 32 at the tip,
The fitting member main body 37 is provided so as to be movable inside the anchor member 35 and has a distal end cone 36 formed as a large diameter portion at the distal end. Therefore, inside the anchor member 35, a moving hole 38 in which the fitting portion main body 37 moves,
In order to secure a predetermined amount of movement, it is necessary to drill a predetermined depth. This drilling operation is troublesome and takes a lot of time.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to minimize the work of piercing a male fitting portion for expanding the diameter of a fixed blade member.
In addition, it is an object of the present invention to provide a joining structure of a construction member capable of reliably expanding the diameter of a fixed blade member.

[0006]

The male fitting portion of the joint structure according to the present invention includes a fixed blade member provided at a protruding end thereof and having an expandable diameter, and is formed inside the fixed blade member. And an insertion hole for diameter enlargement. The female fitting portion has a fitting hole in which the fixing blade member of the male fitting portion is fitted, and the female fitting portion is fixed in the male fitting portion at the bottom of the fitting hole. It is assumed that a diameter-enlarging member formed so as to fit in the diameter-enlarging insertion hole of the blade member and expand the diameter of the fixed blade member is mounted so as to protrude into the fitting hole.

By providing the diameter-enlarging member in the female fitting portion as described above, the moving hole 38 in the anchor member 35 in the conventional structure (see FIG. 7) can be formed according to the present invention (see FIG. 1). 2), the diameter-enlargement insertion hole 7 for the diameter-expansion member 9 can be formed by a minimum drilling operation. Moreover,
The diameter-enlargement member provided in the female fitting portion ensures that the male fitting portion and the female fitting portion are fitted with each other, that is, that the two construction members can be securely joined. .

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a joint structure of a construction member according to the present invention.

The joint structure 1 of the present invention (see FIGS. 1 and 2) includes an anchor member 3 attached to one construction member 2 to be joined.
And the male fitting part 4 protruding from the joint surface 2a of the construction member 2 and the other construction member 2 to be joined.
And a female fitting portion 5 which is fixed to the joint member 2 with an anchor member 13 and is opened at the joint surface 2a of the construction member 2.
The male fitting portion 4 includes a fixed blade member 6 provided at a protruding end thereof, which can be expanded in diameter, and an insertion hole 7 for expanding the diameter formed inside the fixed blade member 6. ing.
The female fitting portion 5 is formed with a fitting hole 8 in which the fixed blade member 6 of the male fitting portion 4 is fitted. A diameter-enlarging member 9 formed so as to fit into the diameter-enlargement insertion hole 7 of the fixed blade member 6 in the mold fitting portion 4 so that the diameter of the fixed blade member 6 can be expanded. It is mounted in a protruding state.

Note that the male fitting part 4 in this embodiment is
An anchor member 3 having one end fixed to one construction member 2 in a state of protruding from the joint surface 2a, and a slit 6a is formed at a predetermined location at a protruding end of one end of the anchor member 3. Fixed blade member 6. A diameter-enlargement insertion hole 7 into which the diameter-expansion member 9 is inserted is formed inside the fixed blade member 6.

The female fitting portion 5 in this embodiment includes a fitting ring 10 having a fitting hole 8 in which the fixed blade member 6 of the male fitting portion 4 is fitted, and a fitting ring 10. And a ring case 12 having a through hole 11 opened to the joint surface 2a of the construction member 2 and communicating with the storage portion, and this ring case 12 is attached to the tip of the construction member 2 on the joint surface 2a side. And an anchor member 13 provided. The anchor member 13 in the female fitting portion 5 includes a tip portion 13a on the joining surface side that forms the bottom portion 8a of the fitting hole 8 and a fixing body portion 13b.

The diameter-enlarging member 9 in this embodiment is large enough to fit in the female-type fitting portion 5, and the tip portion 13 a of the anchor member 13 forming the bottom 8 a of the fitting hole 8 expands. The fitting hole 8 is formed in a substantially truncated cone shape, and is attached to the bottom 8a of the fitting hole 8 by fitting a mounting projection 9a to the bottom 8a. The diameter-enlarging member 9 is attached to the bottom 8a in the fitting hole 8 via a cushioning member 14 provided around the mounting projection 9a. By mounting the diameter-enlarging member 9 via the cushioning member 14, even if a positional deviation or a deviation in the insertion direction occurs when the fixed blade member 6 is inserted into the male fitting portion 4, each deviation (construction) Error) can be dealt with.

The outer shape of the diameter-enlarging member 9 is inserted into the diameter-expanding insertion hole 7 of the fixed blade member 6 so as to be fixed.
The shape is not limited to the shape of this embodiment as long as the diameter can be increased. Further, the mounting projection 9a of the diameter-enlarging member 9 is used to secure the cushioning material 14 as shown in FIG.
As shown in FIG. 2, a plurality of steps are formed, and FIG.
It is conceivable that it is formed in a substantially trapezoidal shape that spreads toward the protruding end as shown in FIG.

In order to join the two construction members 2 to be joined by using the joining structure 1 having such a configuration, the fixing member provided at the projecting end of the anchor member 3 in the male fitting portion 4 is provided. This is performed by fitting the blade member 6 into the fitting hole 8 of the fitting ring 10 in the female fitting portion 5. When the fixed blade member 6 is fitted, the fitting ring 10
The member 9 for diameter expansion projecting into the hole 8 for fitting of the fixed blade member 6 enters the hole 7 for diameter expansion of the fixed blade member 6. Therefore, the fixed blade member 6 spreads along the outer peripheral shape of the diameter-enlarging member 9, and is brought into close contact with the inner peripheral surface of the fitting hole 8 of the fitting ring 10 in the female fitting portion 5, so that the male fitting portion is formed. The fixed blade member 6 is fixed in the fitting ring 10 of the female fitting portion 5. Therefore, by fitting the fixed blade member 6 of the male fitting portion 4 into the fitting ring 10 of the female fitting portion 5,
One structuring member 2 to which the male fitting portion 4 is fixed and the other structuring member 2 to which the female fitting portion 5 is fixed are fixedly joined.

As described above, the diameter expanding member 9 is connected to the female fitting portion 5.
As shown in FIG. 7, the moving hole 38 inside the anchor member 35 in the conventional structure as shown in FIG. The insertion hole 7 can be formed with a minimum drilling operation. Therefore, the joining structure 1 of the type in which the male fitting portion 4 is fitted into the female fitting portion 5 can be easily provided by an easy operation. In addition, the male fitting portion 4 and the female fitting portion 5 are fitted to each other by the diameter-enlarging member 9 provided in the female fitting portion 5, that is, both the building members 2 are securely joined. Can be.

FIG. 3 shows another embodiment of the present invention, in which the bottom 8a of the fitting hole 8 is provided on the bottom of the ring case 12 and the ring-shaped lid 15 fixing the fitting ring 10 is provided.
It is constituted by. The mounting projection 9a of the diameter-enlarging member 9 here passes through the through-hole 15a of the ring-shaped lid 15, and has a locking portion 9b at the penetrating tip. A ring-shaped cushioning member 16 is provided between the ring-shaped lid 15 and the locking portion 9b of the mounting projection 9a, and the through hole 15a of the ring-shaped lid 15 and the mounting projection are formed.
A gap 15b for error adjustment is provided between the gap 15b and the gap 9b.
Note that the anchor member 17 in this embodiment is attached to the side surface of the ring case 12.

With the configuration shown in FIG. 3, the diameter-enlarging member 9 can be mounted more reliably, and the action of the ring-shaped cushioning member 16 and the gap 15b allows the fixed blade member 6 to be inserted. Each displacement (construction error) such as positional displacement and insertion direction displacement at the time can be reliably absorbed.

FIG. 4 shows still another embodiment of the present invention, in which a bottom portion 8a of a fitting hole 8 is formed integrally with a fitting ring 9 fixed by a ring-shaped lid 15. The mounting projection 9a of the diameter-enlarging member 9 here passes through the bottom 8a of the fitting hole 8 which is the bottom of the fitting ring 9, and the locking portion 9b is inserted into the through hole 15a of the ring-shaped lid 15. Is provided. A ring-shaped cushioning member 16 is provided between the bottom 8a and the locking portion 9b of the mounting projection 9a. In the embodiment shown in FIG. 4 as well, the attachment of the diameter-enlarging member 9 can be performed more reliably, and the respective displacements (construction errors) of the displacement and the insertion direction can be reliably absorbed by the action of the ring-shaped cushioning material 16. be able to.

FIG. 5 shows still another embodiment of the present invention.
9 shows another form of the attached state of the diameter-enlarging member 9.
Here, the diameter-enlarging member 9 is provided with the fitting hole 8 of the ring case 12.
At the bottom 8 a of the fitting hole 8, it is mounted so as to protrude into the fitting hole 8 via a mounting ring plate 18 fitted on the inner peripheral surface of the fitting hole 8. The mounting ring plate 18 is a thin plate made of steel, plastic, or the like, and is configured to be broken and removed by the fixed blade member 6 of the male fitting portion 4. That is, the fixed blade member 6 breaks the mounting ring plate 18 and
The diameter is increased by the above. The attachment of the diameter-enlarging member 9 to the mounting ring plate 18 is performed by using the mounting ring plate.
This is performed by fitting the diameter-enlarging member 9 into the fitting hole 18a (see FIG. 6). The shape of the fitting hole 18a of the mounting ring plate 18 may be, for example, a shape provided with a plurality of concave portions 18b to make it easily broken as shown in FIG.
As shown in FIG. 6B, a simple circular shape is conceivable.

With the configuration shown in FIG. 5, the ring enlarging member 9 can be formed on the ring case 12 or on the portion of the ring case 12 to be the bottom 8a of the fitting hole 8 without performing any mounting process. Can be easily mounted in a state of protruding into the fitting hole 8.

[0021]

According to the present invention, a member for expanding the diameter of the fixed blade member of the male fitting portion in the female fitting portion is provided in the female fitting portion. Therefore, in the present invention (see FIG. 1), the moving hole inside the anchor member in the conventional joining structure (see FIG. 5) can be formed as a diameter-enlargement insertion hole for the diameter-enlarging member by a minimum drilling operation. . Therefore, a joining structure of a type in which the male fitting portion is fitted into the female fitting portion can be provided easily and easily. In addition, the male member and the female member can be securely fitted to each other by the diameter-enlarging member provided in the female member.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing a joint structure of a construction member according to the present invention.

FIG. 2 is a schematic cross-sectional view showing another form of a diameter-enlarging member provided in a female fitting portion.

FIG. 3 is a schematic sectional view showing another embodiment of the joining structure of the present invention.

FIG. 4 is a schematic sectional view showing still another embodiment of the joint structure of the present invention.

FIG. 5 is a schematic sectional view showing still another embodiment of the joint structure of the present invention.

6 (a) is a plan view showing a ring plate for attaching a member for expanding the diameter, and FIG. 6 (b) is a plan view showing another embodiment of the ring plate for attachment.

FIG. 7 is a schematic sectional view showing a conventional joining structure.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Joining structure, 2 ... Construction member, 2a ... Joining surface, 3 ... Anchor member, 4 ... Male fitting part, 5 ... Female fitting part, 6 ... Fixed blade member, 6a ... Slit, 7 ... Diameter expansion Insertion hole, 8: fitting hole, 8a: bottom, 9: member for increasing diameter, 9a: mounting projection,
9b: locking portion, 10: fitting ring, 11: through hole, 12: ring case, 13: anchor member, 13a: distal end, 13b: main body, 14: cushioning material, 15: ring-shaped lid, 15a ... Through hole, 15
b: void, 16: ring-shaped cushioning material, 17: anchor member, 18
... Ring plate for mounting, 18a ... Hole for fitting.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masashi Yamamoto 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Nobukatsu Mizushima 1-2-2 Moto-Akasaka, Minato-ku, Tokyo No. 7 Inside Kashima Construction Co., Ltd. (72) Inventor Kosuke Furuichi 2-9-1-1, Tobita-Shi, Chofu-shi, Tokyo Kashima Construction Co., Ltd. (72) Inventor Yutaka Fujino 4-2-2 Shiba, Minato-ku, Tokyo No. Geostar Co., Ltd. (72) Yasushi Sakuma, Inventor 4-2-3 Shiba, Minato-ku, Tokyo Geostar Co., Ltd. (72) Motokatsu Kogaji 4-18-17, Yotsugi, Katsushika-ku, Tokyo

Claims (2)

[Claims] 1. A male fitting portion fixed to one construction member to be joined by an anchor member and protruding from a joint surface of the construction member, and fixed to the other construction member to be joined by an anchor member. And a joint structure of the construction member having a female fitting portion provided to be opened at a joining surface of the construction member, wherein the male fitting portion is provided with a diameter increase provided at a protruding end thereof. A fixed blade member, and a diameter-enlargement insertion hole formed inside the fixed blade member. The female fitting portion has a fixed blade member of the male fitting portion therein. Is formed, and at the bottom of the fitting hole, the fixed blade in the male fitting portion can be fitted into the diameter-enlargement insertion hole to expand the fixed blade. Is formed in such a manner as to protrude into the fitting hole. Joint structure construction member, characterized in that there. 2. The construction according to claim 1, wherein the diameter-enlarging member in the fitting hole in the female fitting portion is fixed to a bottom of the fitting hole via a buffer material. Member joining structure.