JPH0139322Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial field of application) This invention relates to a washer for a concrete formwork connector, which is used as a connector when assembling concrete formwork.

(Prior art) This type of washer for concrete formwork connectors has long legs when vertical and horizontal beams are used in assembling concrete formwork, whereas only horizontal beams are used. In this case, the legs of the washer are short.

Therefore, as described in Japanese Utility Model Publication No. 56-30608, two types of washers were prepared, one with long legs and one with short legs, and when assembling formwork, vertical and horizontal flaps were When using only horizontal beams, washers with long legs are used, and when only horizontal beams are used, washers with short legs are used.

(Problem that the invention aims to solve) In the above conventional construction method, two types of washers, one with long legs and one with short legs, have to be prepared separately, which is expensive. Moreover, they have to be used differently, which poses problems such as time-consuming handling and poor workability.

(Means for solving the problems) In order to solve the above problems, this invention
The washer 1 of the concrete formwork connector a is made by bending the upper and lower parts of a vertically long rectangular plate at right angles in opposite directions, and providing a long leg 3 at the lower end of the vertical piece 2 and a short leg 4 at the upper end, respectively. The tips of the long and short legs 3 and 4 are bent at right angles in the opposite direction to the vertical piece 2 to form a cover piece 5,
6, extending from the vertical piece 2 to the long and short legs 3 and 4 in their width direction (in this invention, the backing piece 6,
The direction in which the short legs 4, the vertical pieces 2, the long legs 3, and the backing pieces 5 are continuous is called the length direction, and the direction perpendicular to the above direction is called the width direction. ) is S-shaped in cross section, one half is formed into a longitudinal rib that projects toward one surface, and the other half is formed into a longitudinal rib that projects toward the other surface. In the middle part in the length direction, there is a horizontally elongated hole 7 that spans both ribs and b, the ribo has a wedge insertion hole 8 that extends from the middle part of the short leg 4 to the top of the vertical piece 2, and the ribo has a wedge insertion hole 8 that extends from the bottom of the vertical piece 2. leg 3
A wedge insertion hole 9 is formed extending through the middle portion of each of the holes.

(Function) (1) As shown in Figure 6, when assembling a formwork by combining vertical and horizontal beams B and C on weir plate A, move the long legs 3 of washers 1 inward. towards the long hole 7
Fit the ribbed side of the formwork to the tightening rod 10 of the formwork connector a and apply the backing piece 5 to the outer surface of the weir plate A, and then
Pass the wedge 11 through the insertion hole 8 of the washer 1 and tighten the tightening rod 1.
0 into the wedge hole 12 at the tip to form a formwork.

(2) As shown in Fig. 7, when assembling a formwork by combining only the weir plate A and the horizontal beam C, the short leg 4 of washer 1 should be turned upside down from the above state. facing inward, the rib side of the elongated hole 7 is fitted into the tightening rod 10 of the formwork connector a, the contact piece 6 is applied to the outer surface of the weir plate A, and then the wedge 11 is inserted into the insertion hole of the washer 1. 9 and is driven into the wedge hole 13 in the middle of the tightening rod 10 to form a formwork.

(Embodiment) The drawing shows an embodiment of this invention, in which both the rib and lo of the washer 1 are formed in a U-shaped cross section, and the wedge insertion holes 8 and 9 are located at the center of the rib and the lo of the washer 1 in the width direction. Each is installed at a closer position. 14 is a separator, a terminal 16 is screwed into the screw 15 at the end of the separator up to a stopper 17, and the screw 15 is inserted into the through hole 18 of the weir plate A. On the other hand, wedge hole 1
A collar 19 is attached to the base end of the tightening rod 10 provided with 2 and 13,
A screw hole 20 is provided at the center of the base end surface, and the screw hole 20 is screwed into the protruding part of the screw 15 of the separator 14 to sandwich the weir plate A between the terminal 16 and the collar 19, and to adjust the distance between the weir plates A on both sides. hold in place. D is a concrete wall.

(Effect of idea) This invention has the following remarkable effects.

(1) The washer of this invention can be used when assembling formwork.
It can be used for both methods of construction, such as when using vertical and horizontal beams, and when using only horizontal beams, so you only need to prepare one type of washer when assembling the formwork. Not only is it economical at best, it also reduces handling and work effort and improves work efficiency.

(2) The washer extends from the vertical piece to the long and short legs at both ends, and has an S-shaped cross section in the width direction.
Since each half is formed with longitudinal ribs that protrude toward opposite sides, the entire structure is continuously reinforced by both ribs, making it sturdy and undamaged.

(3) Since the two wedge insertion holes of the washer are inconsistent with each other, the portion of the washer where the wedge insertion holes are provided is also strong.

(4) When assembling formwork, whether using vertical and horizontal beams or using only horizontal beams, always make sure that the wedges are placed exactly on the outside of the vertical pieces of the washer. Since the wedges are in close contact with each other, the wedges will not float due to vibrations, etc., and the formwork can be firmly assembled and held by appropriately pressing the flap material against the weir plate.

(5) It has a simple structure and can be manufactured easily and inexpensively.

[Brief explanation of drawings]

Fig. 1 is a front view of a washer for a concrete formwork connector according to an embodiment of the present invention, Fig. 2 is a side view, Fig. 3 is a plan view, Fig. 4 is a slope view, and Fig. 5 is a The sectional view taken along the - line in the figure, and Figures 6 and 7 are front sectional views explaining how to use the washer. In each case, the formwork is assembled using only recycled materials. 2...Vertical piece, 3...Long leg, 4...Short leg, 5,6
...Batch piece, 7...Horizontal hole, 8, 9...Wedge insertion hole, A, B...Rib.

Claims (1)

[Scope of utility model registration request] The upper and lower parts of a vertically long rectangular plate are bent at right angles in opposite directions, and a long leg is provided at the lower end of the vertical piece, and a short leg is provided at the upper end of the vertical piece, and the tips of the long and short legs are bent in the opposite direction to the vertical piece. Bend at right angles to form a backing piece, extend from the above-mentioned vertical piece to the long and short legs, make the cross section in the width direction S-shaped, and make one half part into one.
The other half is formed into a longitudinal rib that protrudes toward the surface side, and the other half is formed into a longitudinal rib that protrudes toward the other surface side.
The lengthwise middle part of the vertical piece has a horizontally elongated hole that spans both ribs, the rib of one half has a wedge insertion hole that extends from the middle part of the short leg to the top of the vertical piece, and the rib of the other half has a vertical hole. A washer for concrete formwork connectors that is made up of wedge insertion holes that extend from the bottom of the piece to the middle of the long leg.