JPH0813621A - Joint member - Google Patents

Abstract

PURPOSE:To enhance durability by arranging a plurality of first collars, which extend radially, to one end and a plurality of second collars, which extend radially at an asymmetric position with the first collars, to the other end. CONSTITUTION:A plurality of first collars 3 are installed to one end of a cylinder-shaped main body 6 in the axial direction in such a fashion that they may extend radially while a plurality of second collars 5 are arranged at a position asymmetric with the first collars 3 in such a fashion that they may extend radially, thereby forming a joint member 1. In the case when the joint member 1 is buried in a concrete main body, the joint member 1 is laid out inside a form and then, concrete is placed into the form while concrete is injected from the first collars 3. This construction makes it possible to prevent the generation of an empty space around the join members 1 since concrete is filled up in the whole peripheral area of the joint members 1 from the first collars 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joining member which is integrally embedded in a concrete wall or the like and is joined to another member.

[0002]

2. Description of the Related Art Conventionally, a concrete wall has been widely used as an outer wall material of a house or the like. The concrete wall is fixed and attached at a plurality of points along an H-shaped steel body supported between columns of a building. The method is generally known.

Concrete walls are disclosed, for example, in Japanese Patent Laid-Open No.
As described in JP-A-194146, a joining member for attaching to an H-shaped steel body is buried at a total of four places, at least two places above and below the concrete wall. The embedded joining member is cylindrical and has an internal thread on the inner circumference.
Then, a bolt penetrating through the hole of the connecting member fixed to the H-shaped steel body was screwed into the female screw of this joining member, and the concrete wall was attached to the H-shaped steel body. Therefore, by embedding this joining member in the concrete wall, the concrete wall can be easily attached to the H-shaped steel body.

However, since the weight of the concrete wall is always applied to the joining member embedded in the concrete wall and the external pressure such as wind is also applied, a great load is applied in the axial direction of the joining member. On the other hand, since the joining member has a cylindrical shape, if a load in the axial direction is received for a long period of time, the joining force of the joining member with the concrete wall will decrease, the joining member will move in the axial direction, and will further escape from the concrete wall. There was a risk that problems such as

Therefore, it is conceivable to use the joining member 101 as shown in FIGS. 12 and 13 in order to prevent the joining member from moving in the axial direction. The joining member 101 is composed of a cylindrical main body 106 and a flange portion 105 extending circumferentially from one end 104 of the main body 106, and an internal thread 107 with which a bolt is screwed is provided on the inner periphery of the main body 106. Has been. Therefore, with respect to the axial load of the joining member 101, the collar portion 1
05 receives the load, and the movement of the joining member 101 can be suppressed.

[0006]

However, the above-mentioned joining member 1
In No. 01, since the flange 105 is formed on the one end 104, the flange 105 receives the load against the load on the flange side, especially when the joining member 101 penetrates the concrete wall. There is a case where the counter-collar portion 105 does not receive a load against the load on the side.

Therefore, in order to solve the above problem, as shown in FIGS. 14 and 15, a cylindrical main body 206 and a main body 10 are provided.
A joining member 201 including a first flange portion 203 and a second flange portion 205 that circumferentially extend at both end portions 202 and 204 of 6 is conceivable. By using this joining member 201, the movement in the axial direction is completely suppressed.

However, the joining member 20 having the circumferentially extending flange portions 203 and 205 at the both end portions 202 and 204, respectively.
No. 1 has a problem when it is buried in a concrete wall. That is, as shown in FIG. 16, the concrete wall 2
When molding 41, the joining member 201 is arranged at a predetermined position of the mold 251 in advance, and then concrete is poured and molded. At this time, the concrete is poured into the entire form 251, but the joining member 201 has its both end portions 202,
Since the flange 204 has the flanges 203 and 205, the joining member 2
It is difficult for concrete to be sufficiently filled in the outer peripheral space of the main body 206 of 01, and the concrete main body 242 and the joining member 20
There may be a case where a thin wall space 243 is generated between the first and second parts, which may lead to rattling of the joining member 201 and deterioration of durability.

Therefore, the present invention solves the above-mentioned problems,
It is an object of the present invention to provide a highly durable joining member that does not move in the axial direction.

[0010]

The constitution of the present invention is as follows.

A plurality of first brim portions radially extending at one end portion and a plurality of second brim portions radially extending at an asymmetrical position with the first brim portion are provided at the other end portion.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 5, in a concrete wall 41 used as an outer wall material of a house or the like, a joining member 1 is embedded in a concrete main body 42 having a rectangular flat shape at four places in upper and lower places. And this joining member 1
, A bolt penetrating through the hole of the connecting material fixed to the H-shaped steel body is screwed into the female screw 7 of the joining member 1, and the concrete wall 41 is attached to the H-shaped steel body.

The structure of the joining member 1 will be described with reference to FIGS.

FIG. 3 is a perspective view of the joining member 1, FIG. 1 is a plan view, and FIG. 2 is a front view. The joining member 1 is provided with a plurality of first flanges 3 extending radially at one end 2 in the axial direction of a cylindrical main body 6, and is extended at the other end 4 radially at an asymmetric position with respect to the first flange 3. A plurality of second flange portions 5 are provided. Further, on the inner circumference of the main body 6, a female screw 7 to which a bolt penetrating the hole of the connecting body is screwed is formed.

Next, a method of manufacturing the joining member 1 will be described with reference to FIG.
A description will be given based on FIG.

FIG. 7 shows a state before the joining member 1 is molded,
FIG. 8 shows a state after molding. In the figure, reference numeral 61 is a forging device, which comprises an upper die 71 and a lower die 81. The lower die 81 has a die engraving space 83 into which the material 66 is put, and the die engraving space 8
3 from a lower die 82 having a first knockout hole 85 extending downward and a lower base 87 having a second knockout hole 88 continuous with the first knockout hole 85 and having a larger diameter than the first knockout hole 85. Become. Engraving space 83
The lower mold pins 84, which are the same number as the second flange portion 5 to be molded, are provided at equal intervals. In the first knockout hole 85 and the second knockout hole 88, a knockout pin 86 for taking out the molded joining member 1 from the lower die 81 is fitted. The upper die 71 is composed of an upper die 72 having an upper die pin 74 protruding downward and an upper base 75 holding the upper die 72. The upper die pins 74 are provided in the same number as the first brim portions 3 to be formed, and are provided at positions facing the respective gaps of the lower die pins 84.

The process of manufacturing the joining member 1 by the forging device 61 will be described. First, as shown in FIG.
Is stopped at the top dead center, the cylindrical material 66 is placed in the central space 89 formed by the lower die pin 84 of the engraving space 83. Next, as shown in FIG. 8, the upper die 71 is lowered to fit in the engraving space 83 and the raw material 66 is pressed, so that the one end portion 2 has the first flange portion 3 and the other end portion 4 has the first flange portion 3. Two collar parts 5
The joining member 1 provided with is formed. Thereafter, the upper die 71 returns to the top dead center, and the knockout pin 86 pushes the joining member 1 upward, whereby the manufacturing is completed.

Next, a method of burying the joining member 1 in the concrete body 42 will be described with reference to FIG.

First, a mold 51 into which concrete is poured.
The joining member 1 is arranged at a predetermined position therein. Then, the formwork 5
The concrete is poured into the inside of the joint 1 and the concrete is poured into the vicinity of the joining member 1 by a separate pouring device from between the first flanges 3 as shown by the arrow. Then, when the concrete is supplied to the upper surface position of the joining member 1, the injection of the concrete is stopped, and after the concrete is solidified, the concrete wall 41 is removed from the form 51.

Therefore, when the concrete wall 41 is molded, the concrete is joined from the space between the first brim portions 3 to the joining member 1.
Since it fills the entire circumference of the joining member 1, as shown in FIG.
There is no void space around the. Further, since the joining member 1 is provided with the plurality of first flange portions 3 and second flange portions 5 at both ends, the joining member 1 does not move in the axial direction, and the concrete wall 41 is connected to the connecting member 91 by the bolts 92. Be attached.

Next, another embodiment of the present invention will be described with reference to FIGS.
It will be described based on.

The joining member 1 according to another embodiment has the same basic structure as the joining member 1 as shown in FIG. The difference in the configuration is that the joining member 1 according to another embodiment is provided with a through hole 8 penetrating in the axial direction in the first flange portion 3 and the second flange portion 5. As shown in FIG. 10, the concrete wall 4 whose thickness is larger than the axial length of the joining member 1 in particular.
Positioning is required at the time of molding 1, but the projection 53 of the positioning means 52 fits into the through hole 8. As a result, the joining member 1 is positioned within the form 51, and concrete is prevented from flowing into the female screw 7 of the joining member 1,
As shown in FIG. 11, the joining member 1 can be embedded inside the concrete body 42.

A bolt or the like may be engaged with the through hole 8 in the joining member 1 of the other embodiment described above in order to attach it to the H-shaped steel body. In this case, the concrete wall 41
Since the bolt is attached by this bolt, the female screw 7 of the joining member 1 is unnecessary, but both may be used for strengthening the attachment.

Although the joining member 1 is formed by forging in the above embodiment, it may be formed by cutting or the like.

Further, in the joining member 1 of the above embodiment, the first flange portion 3 and the second flange portion 5 are all formed at asymmetrical positions, but not all the flange portions are necessarily formed at asymmetrical positions.

Furthermore, in the above-mentioned embodiment, when the concrete wall 41 is molded, the concrete is injected at a plurality of positions, but the injection may be performed at one position.

[0028]

As described above, according to the present invention, a plurality of first brim portions that radially extend are provided at one end, and radially extend at the other end at an asymmetric position with respect to the first brim portion. Since a plurality of second flanges are provided, when the concrete wall is molded, concrete is filled into the entire circumference of the joining member, so that a void space does not occur around the joining member and rattles, and durability is improved. improves. Further, since the joining member is provided with the plurality of first and second brim portions at both ends, the joining member does not move in the axial direction and come off from the concrete body.

[Brief description of drawings]

FIG. 1 is a plan view showing a joining member according to an embodiment of the present invention.

FIG. 2 is a front view showing a joining member according to an embodiment of the present invention.

FIG. 3 is a perspective view showing a joining member according to an embodiment of the present invention.

FIG. 4 is a partial perspective view showing a state in which a joining member according to an embodiment of the present invention is arranged in a mold.

FIG. 5 is a front view showing a concrete wall using the joining member according to the embodiment of the present invention.

FIG. 6 is a cross-sectional side view showing an assembled state of a concrete wall using the joining member according to the embodiment of the present invention.

FIG. 7 is a partial cross-sectional front view showing a state before forming of the forging device for forming the joining member according to the example of the present invention.

FIG. 8 is a partial cross-sectional front view showing a state after molding of the forging device for molding the joining member according to the example of the present invention.

FIG. 9 is a perspective view showing a joining member according to another embodiment of the present invention.

FIG. 10 is a cross-sectional side view showing an assembled state of a concrete wall using a joining member according to another embodiment of the present invention.

FIG. 11 is a cross-sectional side view showing a concrete wall using a joining member according to another embodiment of the present invention.

FIG. 12 is a plan view showing a conventional joining member.

FIG. 13 is a front view showing a conventional joining member.

FIG. 14 is a plan view showing another conventional joining member.

FIG. 15 is a front view showing another conventional joining member.

FIG. 16 is a sectional side view showing an assembled state of a concrete wall using another conventional joining member.

[Explanation of symbols]

 2 (one end) end part 3 first flange part 4 (other end) end part 5 second flange part 8 through hole

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takeshi Nakano 1-7-17 Shiba, Minato-ku, Tokyo Minato Building Materials Co., Ltd. (72) Inventor Hiroshi Mukaiyama 3-1-1 Osaki, Shinagawa-ku, Tokyo Ki-Co., Ltd. Inside the Saw (72) Inventor Tsuneharu Kobayashi 5 at 39 Ozen, Ueda-cho, Toyohashi-shi, Aichi Musashi Seimitsu Kogyo Co., Ltd.

Claims (2)

[Reference number] P433 [Claims] 1. A plurality of first flange portions (3) extending radially at one end portion (2), and the other end portion (4) being radially asymmetric with the first collar portion (3). Second extending collar part (5)
A joining member comprising a plurality of. 2. The joining member according to claim 1, wherein the first flange portion (3) or the second flange portion (5) is provided with a through hole (8) penetrating in the axial direction.