JP3416619B2 - Precast wall panel with cotter - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a precast wall panel with a cotter for use in building a building wall.

[0002]

2. Description of the Related Art Conventionally, as a precast wall panel provided with a cotter, Japanese Patent No. 2997 of the present invention has been proposed.
The one disclosed in Japanese Patent No. 441 is known. In the precast wall panel provided with the cotter disclosed in Japanese Patent No. 2997441, as shown in FIG. 5, the joining ends of the precast wall panels 61 joined to each other are formed symmetrically. That is, the inclined wall surface 63 is formed by being obliquely cut at an angle of approximately 45 degrees from the substantially middle portion of the side wall surface 62 to the front side in the thickness direction , and
A plurality of cotters 64 each having a triangular cross section are provided in the inclined wall surface 63 at predetermined intervals, and the cotters 6 are further provided.
4 of the two inner wall surfaces 65 and 66, the inner wall surface 65 parallel to the side wall surface 62 has a semi-loop portion 67 at the tip.
a is bent and provided, and two arms 67 on the base side are provided.
A cotter streak 67 formed by driving b and 67c is formed by protruding a half loop portion 67a at the tip thereof outward from the side wall surface 62. Then, as shown in FIG. 6, the respective half-loop portions 67a of the respective cotter streaks 67 protruding from the respective precast wall panels 61 joined to each other are slidably brought into contact with each other and overlapped with each other. Is joined so that the half loop portion 67a of the other cotter streak 67 enters, and concrete 68 is placed between the precast wall panels 61 to join and fix the precast wall panels 61.

[0003]

However, in the precast wall panel provided with the conventional cotter, since the inner wall surface 65 into which the cotter streak 67 is driven is not deeply carved in the longitudinal direction, the sliding contact is made. There is a problem that it is difficult to secure the necessary "overlap length" of the cotter muscle 67 to be overlapped, and it takes time and effort to join each half-loop portion 67a of the cotter muscle 67, and the strength at the joint portion cannot be sufficiently obtained. It was

Further, in the precast wall panel provided with the conventional cotter, since the cotters 64 are respectively recessed in the inclined wall surface 63, the precast wall panels 61 are joined to each other so that the space between the precast wall panels 61 is increased. When pouring concrete 68 from above into the wall, the inclined wall surface 63 becomes an obstacle and the concrete 6
There is a problem in that filling of No. 8 takes time and the concrete 68 is not sufficiently filled in the cotter 64, and uniform strength cannot be expected.

The present invention has been made to solve the above-mentioned problems, and it is possible to secure a sufficient lap length of the cotter streak, to fill the concrete with no trouble, and to speed up the construction and obtain sufficient strength. It is intended to provide a precast wall panel with a cotter that can.

[0006]

According to the present invention, the side wall ends of the precast wall panels to be joined to each other are formed symmetrically, and the precast wall panels have the same shape.
In the thickness direction thirds the thickness direction other party side of the side wall surface formed vertically over the vertically entire length 1 width of the thickness direction substantially 3
A gently sloping wall surface is continuously provided over the entire length in the vertical direction with a width of 1/3, and a steeply sloping wall surface with a width of about 1/3 width is provided on the front side in the thickness direction of the gently sloping wall surface. Are provided continuously, and a notch portion that expands to the front side in the thickness direction is provided over the entire length in the vertical direction , and further, a plurality of cotters are carved at equal intervals on the gently sloping wall surface and the steeply sloping wall surface. The cotter is formed by
Wherein from the most other party side in the thickness direction leading edge of the side wall as well as continuously provided ultra gradually inclined surface to the depth direction from the steep wall, the thickness towards direction other party side of the ultra gradually inclined surface A vertical surface parallel to the side wall surface is provided continuously, and further, a widening inclined surface which is expanded and inclined toward the steeply inclined wall surface direction is provided continuously at the front side in the thickness direction of the vertical surface, and the vertical surface is provided in the side wall surface direction. It is formed by providing a widened concave portion, and further, in the vertical surface of the cotter, a semi-loop portion is provided by bending at the tip, and two arms on the base side are connected to each of the precast wall panels to be joined. Means for forming a cotter streak by driving the half-loop portions into sliding contact with each other or forming side wall ends of the precast wall panels to be joined to each other symmetrically, and the thickness of each precast wall panel Approximately one-third in the vertical direction
The thickness of the side wall surface that is vertically formed over the entire length in the vertical direction.
A gently sloping wall surface is continuously provided on the front side in the thickness direction , and a steeply sloping wall surface is continuously provided on the front side in the thickness direction of the gently sloping wall surface with a width of approximately two thirds in the thickness direction. A notch that spreads over the entire length, and the tip of the gently sloping wall in the thickness direction.
A plurality of cotters are formed at equal intervals on one side, and the cotters are formed on one side in the thickness direction of the super-gradient wall surface.
An ultra-slowly inclined surface having the same angle as the ultra-slowly inclined wall surface from the tip edge on the leading side is continuously provided from the steeply inclined wall surface to the back direction, and the ultra-slowly inclined surface is provided on the forward side in the thickness direction. A vertical surface parallel to the side wall surface is continuously provided, and further, an expansion inclined surface that is expanded and inclined toward the steeply inclined wall surface direction is provided continuously on the front side in the thickness direction of the vertical surface, The precast is formed by providing a concave portion that widens in the direction of the side wall surface, and further, in the vertical surface of the cotter, a semi-loop portion is provided by bending at the tip, and two arms on the base side are joined together. The above problem is solved by adopting any one of means for forming a cotter streak by driving so that the respective half loop portions of the wall panel are brought into sliding contact with each other and overlapped with each other.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described in detail with reference to the drawings. The present invention relates to a precast wall panel provided with a cotter for joining and fixing two precast wall panels at respective side ends. It is a thing.
FIG. 1 is an exploded perspective view of a precast wall panel equipped with a cotter of the present invention in an assembled state as seen from the front side , and each side wall end of the precast wall panel A to be joined is formed symmetrically. ing. The present invention precast wall panel A shown in FIG. 1, the thickness direction approximately 1/3 width in the thickness direction other party side of the sidewall surface 1 formed vertically over the vertically entire length of the thickness direction substantially Up and down with 1/3 width
The gently sloping wall surface 2 that is gently sloping over the entire length in the direction is provided continuously, and the thickness is provided on the front side in the thickness direction of the gently sloping wall surface 2.
Direction approximately 1/3 width in the steep wall 3 which is inclined at an acute angle to continuously provided a notch 4 was expanded in the thickness direction other party side provided over the vertically entire length of, further the gentle decline wall 2 and abruptly A plurality of cotters 5 are formed on the inclined wall surface 3 so as to be spaced apart at equal intervals.

The cotter 5 has a thickness of the side wall surface 1.
From the tip edge portion 1a, which is the farthest side in the direction, a super gently sloping surface 6 that is very gentle and nearly horizontal is connected continuously from the steeply sloping wall surface 3 to the depth direction, and Thickness
The side wall 1 and a vertical plane parallel 7 provided continuously to the direction other party side, spreading inclined surface 8 which is inclined by further expanding the the steep wall in three directions in the thickness direction other party side of the said vertical face 7 Are continuously provided to form a concave portion 9 which is widened toward the side wall surface 1.

In the vertical surface 7 of the cotter 5, a half-loop portion 10a is provided at the tip end by bending as in the conventional case, and two arms 10b and 10c on the base side are driven to cotter muscle. 10 is formed. Then, the cotter streaks 10 provided in the cotters 5 of the facing side wall surfaces 1 of the precast wall panel A to be joined to each other are superposed on each other by sliding contact with each other, and inside the half-loop portion 10a of one cotter streak 10. So that the half-loop part 10a of the other cotter muscle 10 can be inserted into the
As shown in FIG. 2, it is necessary to shift the driving position.

The precast wall panel A of the present invention has an inner side of the notch 4 which is widened in the thickness direction forward side over the entire length in the vertical direction of the precast wall panel A as compared with the conventional precast wall panel. In addition, since the cotter 5 is formed by further providing the recessed portion 9 that widens in the direction of the side wall surface 1, the length of the half loop portion 10a that is driven into the vertical surface 7 of the cotter 5 and protruded is long, and The "overlap length" of each half loop portion 10a of the two precast wall panels A to be joined and fixed to each other can be ensured to be long, and the half loop portion 10a can be secured.
Is long, the half-loop portion 10a of the one cotter muscle 10 is inside the half-loop portion 10a of the other cotter muscle 10.
It is easy to join the wires.

Also, the two precast wall panels A
After joining the half-loop part 10a of each cotter muscle 10 of
When the concrete 11 is poured into the gaps between the precast wall panels A from above and the concrete is cast, there is no inclined wall surface that was used in the conventional precast wall panels, and the notch 4 is provided over the entire length. Since the falling speed of the concrete 11 is fast and the recesses 9 forming the respective cotters 5 are expanded in the direction of the side wall surface 1 (concrete filling direction), the filling of the concrete 11 into the respective cotters 5 can be sufficiently performed. It is possible to secure uniform strength.

FIG. 3 shows an assembled state of another embodiment of the precast wall panel provided with the cotter of the present invention.
It is an assembly exploded perspective view seen from the other side . Then, in the thickness direction other party side of the present invention precast wall panel A 'was formed perpendicularly over the vertically entire length in the thickness direction substantially one third the width of the side wall surface 21 as shown in FIG. 3, the vertical direction entire length the thickness of the ultra gentle decline wall 22 which is inclined substantially horizontally close slowly while continuously provided, the ultra thickness direction other party side of the gentle slope wall 22 over the
Is the steep wall 23 which is inclined at an acute angle over the vertically entire length 2 width direction approximately 3 minutes and continuously provided, provided over the notch 24 which is expanded in the thickness direction other party side vertically entire length, Further, a cotter 25 is provided on the front side in the thickness direction of the ultra-slope wall surface 22.
Are formed by engraving at equal intervals.

The cotter 25 is the ultra-gradient wall surface 2
2 from the frontmost edge 22a in the thickness direction, a super-gradient inclined surface 26 having the same angle as the super-gradient inclined wall surface 22 is continuously provided from the steeply inclined wall surface 23 to the depth direction, and A vertical surface 27 parallel to the side wall surface 21 is continuously provided on the front side in the thickness direction of the inclined surface 26, and further widened toward the steeply inclined wall surface 23 on the front side in the thickness direction of the vertical surface 27 and inclined. A concave portion 29 that is formed by extending the splaying inclined surface 28 in a row and expanding in the direction of the side wall surface 21.
Is provided.

On the vertical surface 27 of the cotter 25, two arms 30b and 30c on the base side are provided by bending a half loop portion 30a at the tip end portion having the same structure as the cotter muscle 10 in FIG. To form the cotter streak 30. Since the action of the cotter muscle 30 is the same as that of the cotter muscle 10, the description thereof will be omitted.

Also, the precast wall panel A'of the present invention.
Is the same as the precast wall panel A in the thickness direction over the entire length in the vertical direction of the precast wall panel A ′.
The side wall surface 21 is further provided on the inner side of the cutout portion 24 that expands to the side.
The cotter 25 is formed by providing a concave portion 29 that widens in the direction. Therefore, the operation of the "overlap length" of the cotter streak 30 and the filling of the concrete 31 is the same as that of the cotter 5, and the description thereof will be omitted.

[0016]

Since the present invention is as described above, the thickness of the side wall surface of the precast wall panel is measured over the entire length in the vertical direction.
A notch which is expanded to the direction other party side provided, and cotter having a further recess flared to the side wall surface direction notch portions, with provided with a plurality interval, to the cotter half loop section Since the cotter reinforcements that it has are projected, the "overlap length" in the half-loop part of each cotter reinforcement can be sufficiently secured, so that the joining of each loop part can be easily and easily performed, and also between each precast wall panel. It is possible to quickly fill the voids with concrete, quickly fill the cotter with concrete, and surely fill the cotter with concrete, so that a precast wall panel with excellent strength is provided. be able to.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a precast wall panel equipped with a cotter of the present invention in an assembled state as seen from the front side .

FIG. 2 is a cross-sectional view of a wall constructed using a precast wall panel with a cotter of the present invention.

FIG. 3 is an assembled exploded perspective view of an assembled state of a precast wall panel including a cotter according to another embodiment of the present invention viewed from the front side .

FIG. 4 is a cross-sectional view of a wall constructed using a precast wall panel with a cotter according to another embodiment of the present invention.

FIG. 5 is an exploded perspective view showing a state in which a precast wall panel including a conventional cotter is assembled.

FIG. 6 is a cross-sectional view of a wall constructed using a precast wall panel with a conventional cotter.

[Explanation of symbols]

A / A 'Precast wall panel, 1 Side wall surface, 1
a tip edge, 2 gently sloping wall surface, 3 steeply sloping wall surface,
4 notches, 5 cotters, 6 super gentle slope,
7 Vertical surface, 8 Expansion slope surface, 9 Recessed surface, 10
Cotter muscle, 10a half loop part, 10b, 10c
Arm, 11 concrete, 21 side wall surface, 2
2 super gently sloping wall surface, 22a tip edge portion, 23 steep sloping wall surface, 24 notch, 25 cotter, 26 super sloping slope surface, 27 vertical surface, 28 expansion slope surface, 29
Recess, 30 cotter streak, 30a half loop,
30b, 30c arm, 31 concrete.

Claims (2)

(57) [Claims] 1. A side wall end part of precast wall panels to be joined are formed such that each be symmetrical to each other, and the above in the thickness direction substantially one third the width of the precast wall panels
The thickness direction of the side wall surface formed vertically over the entire length in the downward direction
The other party side, as well as continuously provided a gently sloping wall over the vertically entire length in the thickness direction substantially one third the width of the thickness of the gentle slope wall
On the front side in the thickness direction , a steeply sloping wall surface is continuously provided with a width of about one-third, and a notch portion expanded to the front side in the thickness direction is provided over the entire length in the vertical direction. The cotter is formed by engraving a plurality of cotters on the gently sloping wall surface and the steeply sloping wall surface at equal intervals, and the cotter is formed on the most front side in the thickness direction of the side wall surface.
An ultra-gradient inclined surface is continuously provided from a certain tip edge portion to the depth direction from the steeply inclined wall surface, and a vertical surface parallel to the side wall surface is provided on the forward side in the thickness direction of the ultra-gradient inclined surface. Vertical
The front side of the thickness direction is formed by continuously providing a sloping expansion surface that expands and slopes in the direction of the steeply sloping wall surface to form a recess that expands in the side wall surface direction. In addition, a semi-loop portion was provided at the tip by bending, and two arms on the base side were driven so that the semi-loop portions of the precast wall panels to be joined were in sliding contact with each other to form a cotter streak. Precast wall panel with a cotter characterized by: 2. A side wall end parts of precast wall panels to be joined are formed such that each be symmetrical to each other, and the above in the thickness direction substantially one third the width of the precast wall panels
The thickness direction of the side wall surface formed vertically over the entire length in the downward direction
A gently sloping wall surface is connected to the front side and
On the front side in the thickness direction , a steeply sloping wall surface is continuously provided with a width of approximately two thirds in the thickness direction , and a notch portion expanded to the front side in the thickness direction is provided over the entire length. A plurality of cotters are formed on the front side in the thickness direction at equal intervals, and the cotter is the first end in the thickness direction of the ultra-slowly inclined wall surface.
A super-gradient inclined surface having the same angle as that of the super-gradient inclined wall surface is provided continuously from the front edge portion which is the one side to the depth direction from the steeply inclined wall surface, and the side is provided on the front side in the thickness direction of the super-gradient inclined surface. A vertical surface parallel to the wall surface is provided continuously, and further, a widening inclined surface that is expanded and inclined toward the steeply inclined wall surface direction is provided at the front side in the thickness direction of the vertical surface so as to expand in the side wall surface direction. It is formed by providing an open concave portion, and further, in the vertical surface of the cotter, a half loop portion is provided by bending at the tip, and two arms on the base side are provided in each half of each precast wall panel to be joined. A precast wall panel equipped with a cotter characterized in that a cotter streak is formed by driving so that the loop portions are brought into sliding contact with each other and overlapped with each other.