JPH088196Y2 - Flap fasteners - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Use) The present invention relates to a fixture for a flap material for fixing a mold such as concrete.

(Prior Art) A conventional fastener for a flap material will be described with reference to FIGS. 6 and 7.

 First, the fixture for the flap material shown in FIG. 6 will be described.

The base 102 of the main body 100 is screwed and fixed to the separator 106 of the mold 104, and the vertical flaps 108, 110 and the horizontal flap 112 are pressed in the direction of the mold 104 by a press contact portion 114 that is movable in the length direction of the main body 100. To be done.

The pressure contact portion 114 is fixed by a wedge portion 118 that is wedged into the wedge groove 116.

Further, in the fixture for the flap material shown in FIG. 7, a male screw 202 is engraved on the tip of the main body 200, and the pressure contact portion 204 is a male screw.
By tightening the nut 206 screwed to the 202, the vertical butters 208, 210 and the lateral butter 212 are pressed against each other.

(Problems to be Solved by the Invention) However, the above-described conventional fixing tool for flap material has the following problems.

In the fastener of the flap material shown in FIG. 6, the main body 100 and the pressure contact portion 1
14, the wedge portion 118 is separable, and if separated during storage, fixtures of flap material of different sizes will be mixed, for example, the main body 100 and the wedge portion 118 have different sizes. If they are combined, the wedge portion 118 may be too loose to be used. Therefore, the chain 120 connects the wedge portion 118 and the pressure contact portion 114.
It is necessary to pull out from the wedge groove of the main body 100 in order to loosen 4, and since only the main body 100 has to be separated, there is a possibility that it will be mixed with others. There is also a problem that the chain 120 connecting the wedge portion 118 and the pressure contact portion 114 is entangled with the chain of the other fixing tool of the flap material during storage, which makes it difficult to store.

Looking at that point, the fastener for the flap material shown in FIG.
The nut 206 is screwed to the male screw 202 of the main body 100, and a protrusion 214 is formed at the tip of the nut 206 so that the nut 206 does not come off. The main body 200, the pressure contact portion 204, and the nut 206 are integrated. However, the environment in which the fixture for the flap material is used is where concrete is used, and if concrete adheres to the male screw 202 of the main body 200, the nut 206 will have difficulty rotating. Further, when the vibrator is applied to the concrete surface, the nut 206 that has been tightened is loosened, and the flaps 208, 210, 212 are displaced or come off. Furthermore, there is a problem that the worker must have a dedicated tool for rotating the nut 206.

Therefore, an object of the present invention is to provide a fastener for a flap material which is easy to store and easy to use.

(Means for Solving the Problems) In order to solve the above problems, the present invention has the following configuration.

That is, a wedge-shaped groove is formed so that a base portion is formed so as to be attachable to a separator attached to a mold, and a mold fixing butter that is externally fitted to the main body and is movable in the length direction of the main body. A wedge portion having a pressure contact portion for pressing the material to the mold frame, and a taper portion that is movable in the wedge groove and presses the pressure contact portion against the flap material by engaging with the wedge groove. In the fixture of the flap material, the wedge portion is provided with a taper angle on a tip side of the taper portion larger than a taper angle of a rear end portion which is wedged in the wedge groove, and the taper portion. A groove for restricting the movement amount of the wedge portion is provided along the shape of the wedge shape, and the wedge groove engages with the groove of the wedge portion to prevent the wedge portion from being removed from the wedge groove. A protrusion for contacting the pressure contact portion with the wedge portion and detaching from the main body. Body by being sealed, tripartite crimp part and the wedge section is characterized that it is inseparable.

(Operation) The operation will be described with reference to FIGS. 2 and 3.

When the wedge portion 26 is pushed into the wedge groove 12 of the main body 10, the wedge portion 26 is guided and advanced by both the groove 28 engaged with the protrusion 30 and the inner wall of the wedge groove 12. At that time, the lower end surface 34 forming the taper portion of the wedge portion 26 abuts and pushes the pressure contact portion 18 toward the base portion 14 of the main body 10.

Therefore, the press contact portion 18 can fix the flap materials 46, 48 and 50 to the mold 42.

At that time, the tapered surface 36 of the wedge portion 26 is wedged with the inner wall of the wedge groove 12. The taper surface 36 has a taper angle smaller than that of the tip of the taper portion, and is unlikely to come off when wedged. Also, since the taper angle on the tip side of the taper part is set large, the wedge part
The tip end side of 26 can be formed small, and the lower end surface 34 can abut on the pressure contact portion 18 suitably.

Further, since the wedge portion 26 is prevented from being pulled out of the main body 10 by the protrusion 30 and the press contact portion 18 is prevented by the wedge portion 26, the main body 10,
The press contact portion 18 and the wedge portion 26 are not separated.

(Embodiment) Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

 First, the configuration will be described.

In FIG. 1, reference numeral 10 denotes the body of the fastener for the flap,
A wedge groove 12 is provided at the tip. Further, the base portion 14 is engraved with an internal thread portion 16 that can be screwed into an appropriate separator (not shown).

Reference numeral 18 is a pressure contact portion, and a through hole 20 is formed in the center.
The press contact portion 18 is externally fitted to the tip of the main body 10 so as to be movable in the axial direction of the main body 10. Both end edges 22 and 24 of the press contact portion 18 are bent downward to prevent displacement of a press-fixing shaving material (not shown) for fixing the mold.

26 is a wedge part, which is movable in the wedge groove 12 and
A groove 28 is provided so as to have a taper portion that presses the press contact portion 18 against the flap material by engaging with the wedge groove 12. The groove 28 is engaged with a pin that is a protrusion 30 that is formed so as to traverse the wedge groove 12 of the main body 10, and the wedge portion 26 is restricted in the amount of movement within the wedge groove 12 and from the groove 12 You have been prevented from pulling out. The groove 28 is provided with an inclined portion 32, and the lower end surface 34 is movable toward the base portion 14 by the distance A of the inclined portion 32 in the axial direction of the main body 10.

Further, the taper angle on the tip side of the taper portion is determined by the wedge groove 12
The taper angle is larger than the taper angle of the rear end portion that is wedged in. That is, the wedge portion 26 is provided with the tapered surface 36 at the rear end portion which is wedged with the wedge groove 12. This tapered surface 36 is
The main body 10 is provided with an inclination of an angle θ1 with respect to the horizontal plane.
The wedge groove 12 can be wedged to the inner wall of the upper surface. The inner wall of the lower surface of the wedge groove 12 is also inclined at an angle θ2 with respect to the horizontal plane, and θ1 = θ2. The wedge portion 26 is provided with a hooking portion 38, which can be hooked with the opening edge of the wedge groove 12 of the main body 10 and serves as a stopper.

According to the configuration described above, the wedge portion 26 has the groove 28 with the protrusion 30 of the main body 10.
The wedge portion 26 is inseparable from the main body 10 because it is engaged with. Further, since the wedge portion 26 does not separate from the tip portion of the main body 10, the press contact portion 18 is prevented from being removed from the main body 10.
Therefore, the main body 10, the pressure contact portion 18, and the wedge portion 26 are integrally formed and never separated.

Next, a method of using the fastener for fixing the flap material configured as described above will be described with reference to FIGS. 2 and 3.

Note that FIG. 2 is a front view showing a state in which a fixture for flap material is attached, and FIG. 3 is a side view thereof.

First, the main body 10 of the fixture for the flap material is screwed and fixed to the male screw end of the separator 44 protruding from the mold 42 of the concrete 40.

Next, the vertical flutters 46 and 48 and the horizontal flutter 50, which are flutter materials for fixing the mold, are assembled to temporarily fix the mold 42. And the press contact part 18
The wedge portion 26 is driven into the wedge groove 12 of the main body 10 in the direction of arrow B with a hammer or the like in a state of being pressed against the vertical flaps 46 and 48. Then, the tapered surface 36 is wedged with the inner wall of the upper surface of the wedge groove 12 to fix the wedge portion 26. At this time, the lower end surface 34 of the wedge portion 26 presses the pressure contact portion 18 against the vertical flaps 46, 48, so that the flap members 46, 48, 50 are fixed and the fixing of the mold 42 is completed.

The taper surface 36 has a taper angle smaller than that of the tip end of the taper portion, and is difficult to come off when the wedge portion 26 is wedged. Further, since the taper angle on the tip end side of the taper portion is set to be large, the tip end side of the wedge portion 26 can be formed small, and the lower end surface 34 can abut on the press contact portion 18 suitably. That is, compared with the conventional example shown in FIG. 6, the tip of the wedge portion is shorter, and the lower end surface 34 of the wedge portion 26 can be pressed in a balanced manner without protruding from the press contact portion 18. When the wedge portion 26 does not press the pressure contact portion 18, the wedge portion 26 can be sufficiently moved away from the mold 42, so that workability in assembling the flap material can be improved. The wedge portion 26 includes the groove 28 and the wedge groove 12 which are engaged with the protrusion 30.
Since it is guided by both inner walls of the, it can smoothly enter the wedge groove 12.

When removing the flaps 46, 48, 50, use a hammer to cut the wedge 26
When is pressed in the direction opposite to the arrow B, the wedge portion 26 is guided by the groove 28 and moves obliquely upward in the drawing, so the pressure of the pressure contact portion 18 is loosened,
It becomes possible to remove the flap materials 46, 48 and 50.

 Next, another embodiment will be described.

The example shown in FIG. 4 is an example in which a protruding portion 60 protruding upward is provided at the right end portion of the wedge portion 26. In this example, when the wedge portion 26 is positioned upward as shown in FIG.
28 wedges would be rattling. Therefore, a protrusion 60 that can be engaged with the edge of the wedge groove 12 of the main body 10 is provided to prevent rattling.

Further, in the example shown in FIG. 5, the tapered surface 36 of the wedge portion 26 is elongated and the inclined portion 62 having the same angle as the tapered surface 36 of the groove 28 is provided so as to project. This is an example in which by providing the inclined portion 62, the moving range of the pressure contact portion (not shown) can be widened to accommodate various sizes of flapping material.

In addition, although not shown, a plurality of grooves are provided in the wedge portion, and a groove that connects the grooves is provided so that the protrusion can move between the grooves so that one wedge portion can fix flaps of different sizes. Good.
At that time, the tapered surface of the wedge portion may be formed in multiple steps.

Although various preferred embodiments of the present invention have been described above, the present invention is not limited to the above-mentioned embodiments, and many modifications can be made without departing from the spirit of the invention. .

(Effects of the Invention) When the fastener of the flap material according to the present invention is used, the main body, the pressure contact portion, and the wedge portion cannot be separated from each other. It is possible to prevent the members of (1) from being lost and becoming out of proportion. For this reason,
It is easy to store the fixtures for flaps, eliminates the problem of using screws, and does not require a special tool for wedging and loosening the wedge part, so workers do not have to carry special tools around. Will be easier.

At the same time, since the taper angle of the rear end portion of the taper portion that fits in the wedge groove is smaller than that of the front end portion of the taper portion, it is difficult for the taper portion to come off when the wedge portion is fitted. Further, since the taper angle on the tip end side of the taper portion of the wedge portion is set to be larger than the taper angle of the rear end portion which is wedged in the wedge groove, the tip end side of the wedge portion can be formed small, It can be pressed in a well-balanced manner without sticking out from the press contact part. Furthermore, since the wedge portion is guided by both the groove formed transparently along the shape of the tapered portion and the inner wall of the wedge groove, the wedge portion can smoothly enter the wedge groove and be wedged. Therefore, according to the present invention, it is possible to ensure the wedge engagement of the fixture for the flap material and to easily handle it.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a fastener for a flap material according to the present invention, FIG. 2 is a front view showing a use state of the fastener for the flap material, FIG. 3 is a side view thereof, and FIG. FIG. 4 is a front view of a fastener for a flap material showing another embodiment, FIG. 5 is a front view of a wedge portion of a fastener for a flap material showing another embodiment, and FIGS. 6 and 7 are The front view which showed the fixing tool of the conventional flap material. 10 …… Main body, 12 …… Wedge groove, 14 …… Base part, 18 …… Pressure contact part,
26 …… Wedge, 28 …… Groove, 30 …… Projection, 34 …… Lower end surface, 36
...... Tapered surface.

Claims (1)

[Scope of utility model registration request] 1. A main body having a wedge groove formed therethrough and a base portion formed so as to be attachable to a separator attached to the form, and a form that is fitted onto the main body and is movable in the longitudinal direction of the main body. A press contact portion for press-contacting the fixing flap material to the mold, and a taper portion that is movable in the wedge groove and presses the press contact portion against the flap material by engaging with the wedge groove. In a fixture of a flap material including a wedge portion having, the wedge portion has a taper angle on a tip side of the taper portion,
The taper angle is larger than the taper angle of the rear end portion that fits in the wedge groove, and a groove for restricting the movement amount of the wedge portion is provided along the shape of the taper portion. And a protrusion for engaging with the groove of the wedge portion to prevent the wedge portion from being removed from the wedge groove, and the press contact portion is in contact with the wedge portion to prevent removal from the main body. As a result, the fastener for the flap material is characterized in that the main body, the pressure contact portion and the wedge portion are inseparable.