JPS6134459Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention is designed to:
This invention relates to a metal support stand that supports the rising formwork from below.

When pouring concrete for a concrete foundation, the so-called integral pouring method, in which the base part of the foundation and the rising part above it are poured at the same time, has become popular in recent years because it saves time and can shorten the construction period. It's here. The formwork used in this one-piece casting method is composed of base formworks 11, 11 and upright formworks 12, 12, as seen in the longitudinal cross-sectional view of FIG. Then, the rising part formwork 12, 1 on both sides
A formwork holder 13 is used to maintain the interval between the two at a predetermined width. The support stand 1 of the present invention is a formwork holder 13
The rising part formwork 12 is supported from the lower part of the frame. Note that reference numeral 14 indicates reinforcing bars for reinforcement.

In the integral pouring method for concrete foundations,
It is necessary to form the rising part formwork 12 in a state where it is raised by the height of the base part formwork 11, and conventionally, concrete blocks have often been used for this purpose. However, concrete blocks cannot be manufactured in a short time, are labor-intensive, and are heavy and inconvenient to handle.Thin parts such as reinforcing bar receivers can break if dropped, which can cause injury. Since the loading volume could not be reduced, freight costs were high, and the price per piece was also high.

Metal supports have also been proposed in place of concrete blocks, as seen, for example, in JP-A No. 53-107108 and Utility Model Application No. 53-125214. The former uses a round bar, with a fitting part for the base formwork at both ends, a fitting part for the rising part formwork at the top, and no formwork holder at the bottom, but a metal mold In order to withstand the weight of the frame, the round bar must be made thicker.
They are very heavy and require a large number of them. A more serious drawback is that although the latter is a support stand that has a formwork holder placement section, it does not have a reinforcement placement section.
Since there is only one support rod in the center, there is a drawback that if a heavy formwork is placed on only one side, it will deform, making it extremely inconvenient to use.

The present invention solves the above-mentioned difficulties by providing a lightweight metal support with a special structure obtained by press working. Its feature is that it has a full-length channel formed in the form of two peaks, consisting of horizontal formwork holder placement parts 5, 5 on the left and right, and a reinforcing support part 4 located in the middle that is one step lower than the formwork holder placement parts. Consisting of a plate-shaped support member 2 and a grounding member 3 provided on both edges of the lower end of the support member 2, the grounding member 3
This is because it is constituted by a longitudinal tension section 9 and a width direction stabilization section 8.

A detailed explanation will be given below with reference to the drawings.

Figures 2a to 5b and Figures 6 and 7 are perspective views of the embodiment, and Figures 2b to 5b are perspective views of the embodiment when the formwork holder is placed. It is a diagram. As is clear from these figures, the metal support stand 1 of the present invention consists of a double-mounted support member 2 and grounding members 3 provided at both lower edges of the support member.

The support member 2 has a full-length channel structure to increase its strength. A recess is formed in the center of the support member 2 to serve as a reinforcement support section 4, on which reinforcing bars 14 are placed during construction, as shown in FIG. The left and right sides of the reinforcement support section 4 are formwork holder placement sections 5, 5 on which the formwork holder 13 is placed. In the example of FIG. 2, the formwork holder placement parts 5, 5 have a flat shape as seen in a, and are simply used to place the formwork holder 13, as shown in b. In order to restrict the movement of the formwork holder, various structures as shown below can be used.

In the example shown in FIG. 3a, the width of the form holder mounting portion 5 is made narrow enough to fit the form holder 13, as shown in b. In this example, the formwork holder 13 used has a channel structure that straddles the formwork holder placement section 5 .

In the example shown in FIG. 4a, a convex strip is formed in the center of the form holder mounting portion 5 in the longitudinal direction. As shown in Figure b, this can use the formwork holder 13 similar to that in Figure 3, and can be used at an appropriate position by sliding it in the longitudinal direction, similar to the example in Figure 3. It is.

What is shown in FIG. 5a is an example in which cut-and-raised portions 6, 6 are provided at the center of the formwork holder placement portion 5 near the reinforcement placement portion. As shown in b, when the cut-and-raised holes 15 of the formwork holder 13 are fitted with the cut-and-raised holes 15 of the reinforcement placement part 5, the formwork holder 13 has some margin to be moved in the longitudinal direction. However, it does not move in the width direction and can be placed stably.

In the example shown in FIGS. 6 and 7, a pair of cut-outs 7, 7 for two pieces are provided on the formwork holder mounting portion 5, respectively. Although not shown in the drawings, the formwork holder may be bent and held from both sides to be firmly fixed and mounted.

In order to tension-fix both lower edges of the support member 2 having the above-described structure in the longitudinal direction and to ensure stability in the width direction, a grounding member 3 is attached as seen in each embodiment. This grounding member 3 consists of a widthwise stable part 8 wider than the width of the support member 2, and a longitudinal tension part 9 parallel to the longitudinal direction of the support member 2. 2 will be prevented from expanding.

In the examples shown in FIGS. 2 to 6, the support member 2 is formed into a double mountain shape, and the lateral stabilizing portion 8 of the grounding member 3 is first attached to both lower edges of the support member 2, and then the longitudinal tension portion is bent at both ends. Fixed. However, as shown in FIG. 7, the formwork holder placement parts 5, 5 on the upper part of the support member 2 and the reinforcement support part 4 are formed separately except for the inclined part 10, and the other rectangular parts are formed separately. A veneer is pressed to form the rib-structured grounding part 3 and a part of the channel-like inclined part 10 of the support member 2 as an integral part, and these are both formed in the formwork holder mounting parts 5, 5. It can also be made integrally by spot welding or the like.

Since the present invention has the structure as detailed above,
It is lightweight, easy to handle during on-site construction, and has high strength. In addition, since a large number of blocks can be stacked on top of each other during storage or transportation, warehouse space is small, shipping costs are low, and they are much lighter than conventional blocks. Furthermore, it has many advantages, such as the fact that the poured concrete is filled into the inside of the support base, which prevents the strength of the cloth foundation from decreasing.Furthermore, it is inexpensive and can be easily manufactured by press processing. Mass production is possible.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a cloth foundation form using the metal support of the present invention. FIGS. 2a to 5a and FIGS. 6 and 7 are perspective views of the embodiment. FIGS. 2b to 5b are perspective views of the embodiment when the formwork holder is placed. 1...Metal support stand, 2...Support member, 3...
Grounding member, 4... Reinforcement support part, 5... Formwork holder mounting part, 10... Inclined part.

Claims (1)

[Scope of utility model registration request] A support member 2 in the form of a full-length channel plate in which horizontal formwork holder placement parts 5, 5 on the left and right and a reinforcing support part 4 located in the middle that is one step lower than the formwork holder placement part are formed in a double mountain shape. , and a grounding member 3 provided on both edges of the lower end of the support member 2, and the grounding member 3 includes a longitudinal tension portion 9.
A metal support stand for a cloth foundation formwork, characterized by comprising: and a width direction stabilizing part 8.