JPH0140901Y2 - - Google Patents

Description

[Detailed description of the invention] "Purpose of the invention" (Field of industrial application) The invention relates to formwork panels used for concrete pouring, particularly to mounting structures on the middle crosspieces of formwork panels. It is.

(Prior Art) There are various types of formwork panels for concrete pouring, such as those made of wood and metal. Wooden ones are lightweight;
They have the advantage of being inexpensive and have good adaptability in construction, but they lack strength and durability.Furthermore, metal products have excellent strength and durability, but are heavy, difficult to handle, and expensive. It has the disadvantage of being. Therefore, in recent years, formworks having a structure in which a face plate made of plywood or the like is bonded to a metal frame body have come into widespread use.

This composite formwork panel of metal and wood is
Conventionally, as shown in Figs. 4 and 5, the structure has been such that a face plate 3 is attached to a metal frame 1 with appropriate inner crosspieces 2 mounted thereon using screws 4, etc.; As shown in the figure, since the frame member constituting the frame body 1 is a member having an L-shaped cross section, as can be seen in FIG.
The notch at the end becomes complicated, which increases the processing cost, and the manufacturing process is complicated, as the installation of the middle crosspiece 2 requires welding, and appropriately processed parts such as angle materials are used as auxiliary materials. It was hot.

(Problems to be solved by the invention) The present invention solves the above-mentioned drawbacks of conventional formwork panels, and is easy to install because it does not require complicated cutting to fit the middle crosspiece to the frame member. In addition, it is an object of the present invention to provide a structure for attaching the center beam of a concrete formwork panel, in which the connection between the frame member and the center beam is strong and manufacturing costs can be reduced.

"Structure of the invention" (Means for solving problems) The present invention is a concrete formwork panel in which a face plate is attached to a frame formed by a frame member having an L-shaped cross section. A connecting member is formed of a fixed portion to be attached and a crosspiece receiving portion connected to the fixed portion and having an insertion groove for a crosspiece having an I-shaped cross section, and the connecting member is placed inside the opposing frame member, It is characterized in that it is fixed to the upright part of the frame member and the face plate receiving part, respectively, and both ends of the cross-section member having an I-shaped cross section are fitted and fixed into the insertion grooves of both of the connecting members.

(Example) An example of the present invention will be described with reference to FIGS. 1 to 3.

In the figure, 1 is a frame formed into a rectangular shape in plan using a frame member 5 having an L-shaped cross section with an upright portion 5a and a face plate receiving portion 5b, and 6 is a frame member 5, 5 facing each other of the frame 1. It is a connecting member fixed to the inside of the frame member 5, and consists of a fixed part 7 formed so as to be attached to the inner surface of the frame member 5, and a crosspiece part 8 connected to this fixed part. The fixed part 7 is on the upright plate 7a,
Horizontal flanges 7b and 7c are provided protruding from both lower ends, and screw holes 7d are provided in the longitudinal and horizontal direction in the middle of the upright plate 7a, and screw insertion holes 9 are provided in the upper flange 7b, respectively. ing. A crosspiece portion 8 connected to the fixed portion 7 is formed integrally with the fixed portion 7, and horizontal flanges 8b are provided on both sides of the vertical plate 8a, which is parallel to the upright plate 7a, at both upper and lower ends thereof. 8c, the outer end of the upper end flange 8b is bent upward, and the upper end flange 8b
A screw insertion hole 10 is provided at a suitable location. Further, an insertion groove 11 for a crosspiece 15 is formed in the vertical plate 8a and extends vertically in parallel with the vertical plate 8a.

The connecting member 6 has its fixing portion 7 attached to a predetermined position on the inside of the frame member 5 to which the crosspiece is attached, and the bolt 12 inserted through the screw insertion hole provided in the frame member 5 is inserted into the screw hole 7d. The bolts 13 are screwed into the screw holes provided in the face plate receiving portion 5b of the frame member 5 through the screw insertion holes 9 of the upper flange 7b, and the bolts 13 are tightened and fixed. And the connecting member 6
A vertical portion of a crosspiece 15 formed with an I-shaped cross section is inserted into the insertion groove 11 of the crosspiece receiving portion 8 , and the upper end flange engages with the upper surface of the upper end flange 8 b of the crosspiece receiving portion 8 . The lower end flange is engaged with the lower surface of the lower end flange 8c of the crosspiece part 8, and the screw insertion hole 1
The bolt 14 is screwed into a screw hole provided in the upper end flange of the crosspiece 15 to fix the crosspiece 15. In this case, the upper surface of the face plate receiving portion 5b of the frame member 5 and the crosspiece 15
It is made to be flush with the top surface of. A face plate 16 is placed on the frame member 5 and the crosspiece 15, and is fixed to the frame member 5 with set screws 17 and the like. Furthermore, set screws may be used in place of the bolts 13 and 14, and the face plate 16 may be screwed together to secure the connecting member 6, frame member 5, and crosspiece 15 together.

In addition, 17 in the figure is an elastic protective material for protecting the peripheral edge of the face plate 16, which is coated on the upper end of the frame member 5.

(Function) When manufacturing concrete formwork panels using the present invention, crosspieces 1 formed to a predetermined length are used.
After attaching the connecting members 6, 6 to both ends of 5,
By attaching the connecting members 6, 6 to the predetermined positions of the frame member 5 and fixing them with the bolts 12 and 13, the crosspiece 1
5 is extremely easy to install, and all that is left to do is place a face plate formed to a predetermined size and secure it with screws. Furthermore, the number of crosspieces 15 is not limited to one place on each of the eleven formwork panels, and a plurality of crosspieces can be attached.

"Effects of the Invention" As explained above, the present invention provides a concrete formwork panel in which a face plate is attached to a frame body formed by a frame member having an L-shaped cross section. and a crosspiece receiving part connected to this fixed part and having an insertion groove for a crosspiece having an I-shaped cross section, and the connecting member is formed by:
Inside the opposing frame members, each is fixed to the upright part of the frame member and the face plate receiving part, and both ends of the cross-sectional I-shaped crosspiece member are fitted into the insertion grooves of both connecting members. Because of this structure, the frame member and the crosspiece are connected to each other via the connecting member, and there is no need to make complicated cuts in the crosspiece to match the shape of the frame member, and the installation work is extremely simple. Therefore, it is possible to provide an inexpensive formwork panel, and in addition, the connecting member is fixed to the upright portion of the frame member and the face plate receiving portion, and the crosspiece is engaged with the insertion groove of the connecting member. Since the formwork panel is attached with the support, not only the strength of the crosspiece connecting portion is increased, but also the strength of the formwork panel as a whole is increased, making it possible to obtain a formwork panel with excellent durability.

[Brief explanation of the drawing]

Figure 1 is a front sectional view showing the entire formwork panel according to the present invention, Figure 2 is a side sectional view showing the main parts, and Figure 3 is a front sectional view showing the entire formwork panel according to the present invention.
The figure is a perspective view from below of the structure of the present invention, FIG. 4 is a front sectional view showing a conventional formwork panel, and FIG. 5 is a perspective view of the same essential part from below. 1... Frame body, 5... Frame member, 6... Connection member,
7... Fixed portion, 7d... Screw hole, 8... Crosspiece receiving portion, 11... Insertion groove, 12, 13, 14... Bolt, 15... Crosspiece, 16... Face plate.

Claims (1)

[Scope of utility model registration request] In a concrete formwork panel in which a face plate is attached to a frame formed by a frame member having an L-shaped cross section, a fixed part attached along the inner surface of the frame member;
Connecting to this fixed part, a connecting member consisting of a crosspiece receiving part having an insertion groove for a crosspiece having an I-shaped cross section is formed, and the connecting member is connected to each upright part of the frame member on the inside of the opposing frame member. and a face plate receiving part, and both ends of a cross section member having an I-shaped cross section are fitted and fixed in the insertion grooves of both connecting members. .