JP2501766B2 - Weir plate joint structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure for barrier plates.

[0002]

2. Description of the Related Art When constructing concrete structures such as various foundations and walls, it is common to place concrete in a wooden concrete formwork for construction. In such a wooden concrete formwork, a plurality of weirs are formed on the back surface (the surface that contacts the concrete is the front surface, and the surface on the opposite side is the back surface. The same applies hereinafter in this specification) of the dam plate made of plywood or the like. It is configured by joining formwork panels, which are formed by fixing piers, in a flush or crossed shape in accordance with the required external shape of the concrete structure.

As the above-mentioned form panel, a form having an outer dimension of about 90 × 180 (cm) is prepared as a standard product, but the outer shape of the concrete structure is not uniform. Therefore, the above-described standard product is cut into a convenient size or shape for use at each site.

[0004]

The wood scraps of the weir plate that remain after cutting the formwork panels are usually disposed of as waste material. In addition, generally, after the cast concrete has hardened to some extent, the form panel that has been peeled off is reused if it can be reused to reduce the cost, but it is cut and used as described above. The formwork panel
Since it is peculiar in terms of dimensions and shape, it has little opportunity to be reused and was often disposed of. Therefore, it was wasted in terms of cost.

The present invention has been made in view of the above circumstances, and enhances the utility value as a form panel by joining the dam plates that have become dimensionally or shape-specific by cutting. It is an object of the present invention to provide a joint structure for a weir plate that can reduce cost waste as much as possible.

[0006]

In order to achieve the above object, the present invention takes the following technical means. That is, the present invention is a two dam plate in which a groove is formed in the edge portion so as to divide in the thick direction, and between these edge plates with the groove plate facing each other. The joint strips are provided along with the joint strips . The joint strips project from one end of the web to both sides thereof and are embedded in the grooves of the dam plates, respectively , and the other end of the web to both sides thereof. a backing flange in contact with the rear surface of the projecting each dam to have a reinforcing rib projecting from the backing flange to back direction of the sheathing board, of the two of the sheathing board, the one Edge of dam plate
Part, the first inclination that is inclined so that a tip is formed on the groove side
Surface is formed, and when the two dam plates are joined to the edge of the other dam plate
In addition, a tip is formed on the surface side so as to contact the first inclined surface.
It is characterized in that a second inclined surface inclined like this is formed .

[0007]

[Operation] Buried hula protruding on both sides of the web of joint strip
When the flange is fitted into the weir plate groove, the edge of the weir plate is
The backing flange is clamped between the lunge and the backing flange.
Installed on the joint strip while being backed up by
Be attached. Because of this, the embedded bulges on both sides of the web
Make sure to fit the grooves of the two dams into the flange.
Then, with the two barrier plates abutting their edges,
It is attached to a strip for joints, which allows two weirs
The plates are joined together via the joint strip. This place
, The backing flange of the joint strip is
Abutting and from the backing flange to the backside of the weir plate
Since it has a reinforcing rib projecting inward, it also serves as a pier for surface reinforcement for the dam plate. Also, two dam plates
When joined, the first inclined surface of one weir plate and the other one of the weir plate
The second slanted surface comes into contact, and the joining surface on the
Therefore, it is easy to bring the two buttress plates into close contact with each other, and
The water effect is enhanced.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a back surface side of a formwork panel 1 obtained by carrying out a joining structure according to the present invention. A plurality of strip-shaped strips having a short widthwise dimension (3 in the drawing) are formed by cutting.
The barrier plates 2 are joined together in a flat manner by the joint strips 4 to form a single form panel 1 having a fixed size as a whole. Reference numeral 10 is a rim pier.

As shown in FIG. 2, the barrier plate 2 is formed with a groove 3 at the edge portion to be joined, which passes through so as to divide the thick wall direction. Further , in this embodiment , each barrier plate 2
The edge portion, to allow diagonal seam at a portion of the front surface side of the groove 3, inclined surfaces S1, S2 are formed. sand
That is , on the edge of one weir plate 2 (right side in FIG. 2), on the groove 3 side.
A first sloping surface S1 is formed so as to form a point.
At the edge of the other weir plate 2 (left side in FIG. 2), both weir plates 2,
When the two are joined, a sharp tip is provided on the surface side so as to contact the first inclined surface S1.
The second inclined surface S2 that is inclined so that
It By forming such inclined surfaces S1 and S2, it becomes easy to bring the barrier plates 1 into close contact with each other, and the water blocking effect is enhanced .

On the other hand, the joint strip 4 is a long molded body formed by extruding or drawing an aluminum alloy or the like, and its cross-sectional structure is that of a buried flange 5 projecting from one end of the web 7 to both sides thereof. , The backing flange 6 protruding from the other end of the web 7 to both sides thereof, and the backing flange 6 to the web 7
Reinforcing ribs 8 projecting in the opposite direction (back side of the dam plate 2)
And a protruding end flange 9 projecting to both sides at the protruding end of the reinforcing rib 8. The buried flange 5 is the groove 3 of the barrier plate 2.
And the backing flange 6 abuts on the back surface of the dam plate 2, and the embedding flange 5 and the backing flange 6 connect the dam plate 2 to each other.
A part of the edge portion (between the groove 3 and the back surface) is pinched,
It can be attached to the barrier plate 2 by force fitting.

The mutual distance between the buried flange 5 and the backing flange 6 is such that the buried flange 5 is positioned at the central portion in the thickness direction of the dam plate 2, for example, the thickness of the dam plate 2 is 12
Since 6 mm is often used, it is about 6 mm
It is said to be before and after. Further, the protruding dimension of the embedded flange 5 with respect to the web 7 in the width direction is determined by the groove 3 formed in the edge portion of the dam plate 2.
Therefore, the range where the strength of the dam plate 2 is not weakened, for example, about 8 mm when the thickness of the dam plate 2 is 12 mm. It is preferable that the projecting size of the backing flange 6 and the projecting size of the reinforcing rib 8 are as large as possible within a reasonable range.

As shown in FIGS. 3 (a) and 3 (b), the reinforcing rib 8 is not limited to the protruding position and the number of protruding portions with respect to the backing flange 6, the presence or absence of the protruding end flange 9, and the like. Together with this flange 6, L-shaped, square pipe-shaped,
It may have a groove shape or the like. As a method for forming the groove 3 on the edge portion of the barrier plate 2, a method shown in FIG.
And large and small circular saw teeth 15 having different diameters as shown in FIG.
16 is coaxially overlapped, this is attached to the rotating shaft of a machine tool (not shown), and the end edges of the dam plate 2 are pressed against these rotating circular saw teeth 15, 16. . The circular saw teeth 15 on the smaller diameter side are necessary for cutting the web 7 of the joint strip 4 to escape. In addition to the circular saw teeth 15 and 16, circular saw teeth (not shown) having a trapezoidal cross section for making the edge of the barrier plate 2 an inclined surface may be overlapped.

[0013] Note that the attachment of the fitting for elongated member 4 to the dam plate 2, a buried flange 5 of the fitting for elongated member 4, inserted in parallel along the longitudinal direction in the groove 3 of the edge portion of the sheathing board 2 Or, if the embedded flange 5 is pressed in from the direction orthogonal to this
Good. In this case, the embedded flange 5 of the joint strip 4 has the groove 3
, The back side of the edge of the barrier plate 2 is embedded in the embedded flange 5.
Since it is pinched between the backing flange 6 and the backing flange 6,
Without hitting nails or screws or applying adhesive to J6
Also, the weir plate 2 must be firmly attached to the joint strip 4.
You can In addition, the state in which the two barrier plates 2 are joined (Fig.
In 2), the backing flange 6 contacts the back surface of the edge of both dam plates 2.
While contacting and backing up the joint from the back,
Since the joint strip 4 functions as a splint,
The joining structure can sufficiently withstand the surface pressure at the time of driving.

[0014]

EFFECTS OF THE INVENTION According to the present invention , the wood cuttings of the weir plate are spliced together.
Since it can be joined flush with hand strips, weir boards are cut into pieces
Can be assembled to assemble formwork panel of required width
It Therefore, the weir plate can be used more effectively than before, and
The cost of strike can be reduced. Also, the joint strip is the joint of the weir plate.
Since it also functions as a pier in the
There is no need to install a new splint on the back of the
It will be easy to manufacture and construct. Furthermore, according to the invention
For example, when the two barrier plates are joined, the first one of the barrier plates
The slanted surface and the second slanted surface of the other weir plate contact each other, and
Since the joint surface on the surface side is a diagonal joint, both weir plates are butted.
It is easy to bring the seal into close contact, and the water-stopping effect can be enhanced.

[Brief description of drawings]

FIG. 1 is a perspective view showing a form panel obtained by implementing a joining structure according to the present invention from the back surface side thereof.

FIG. 2 is a plan view showing an attachment state of a joint strip and a dam plate.

FIG. 3 is an end view showing another embodiment of the joint strip.

FIG. 4 is an enlarged cross-sectional view showing a situation in which a groove is formed at an edge portion of a barrier plate.

FIG. 5 is a partially omitted plan view showing circular saw teeth used for forming grooves.

[Explanation of symbols]

 2 Weir plate 3 Groove 4 Joint strip 5 Embedded flange 6 Backing flange 7 Web 8 Reinforcing rib

Claims (1)

(57) [Claims] 1. An edge portion is formed so as to divide it in the thick wall direction.
Groove(3)Two weir plates formed with(2) (2)
And these weir boards(2) (2)The groove(3)Face each other
For joints to be installed along the edges of each other
Strip material(4)And the above-mentioned joint strip(4)Is the web(7)From one end of
Each of the above, protruding to both sidesIn the groove (3) of the weir plate (2) (2)
EachEmbedded flange to fit(5)And the web(7)Other
From the end to both sides,Each dam plate (2) (2)of
Backing flange that abuts the back(6)And this back franc
The(6)From dam plate(2)Reinforcing ribs protruding toward the back of the
(8)Having andCage, One of the two weir plates (2) (2)
Inclination is made so that a sharp point is formed on the edge of the groove (3) side.
The first inclined surface (S1) is formed, and the other dam plate (2)
At the end edge of the joint, when the both dam plates (2) (2) are joined,
To make a point on the surface side to contact the slope (S1)
A second inclined surface (S2) is formed, Special
Weir plate joint structure to be considered.