JP3017949U - Formwork concrete block - Google Patents

Abstract

(57) [Summary] [Purpose] It is assumed that the rectangular wall does not crack outward and concrete does not leak when pouring concrete. [Configuration] Form block B1, B2 in which a front side rectangular wall portion 1 and a back side rectangular wall portion 2 are connected by an intermediate joint portion 3,
Vertical grooves m filled with joint mortar are provided on the left and right vertical side surfaces b of each rectangular wall portion. At this time, it is desirable to provide a lateral groove n in which the joint mortar is filled also on the lateral surface a. If necessary, a notch groove k is provided at an appropriate position on the back rectangular wall 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a formwork concrete block used as a structural material of a building.

[0002]

[Prior art]

 Formwork concrete blocks, which are used as structural materials when constructing wall-structured apartments, etc., are already known, and the basic structure is as shown in FIGS. B2, and the former is one in which the front rectangular wall 1 and the back rectangular wall 2 are connected by the intermediate joint portion 3, and the latter is one side end of two rectangular wall portions 1 and 2. The side walls a and b of each of the rectangular walls 1 and 2 are flat surfaces without any unevenness in any of the front and rear sides.

In use, the blocks are vertically stacked in a wall shape, and the joints mortar is formed at the side surfaces a ..., B .. After being properly solidified, concrete is placed between the front side rectangular wall portion 1 and the back side rectangular wall portion 2.

[0004]

[Problems to be solved by the device]

 When pouring concrete into the above-mentioned conventional formwork block, in order to make the flow of concrete supplied between the front side rectangular wall part 1 and the back side rectangular wall part 2 smooth, this is done with a vibrator. Although vibration is applied, the main part of the vibrator may come into contact with the intermediate joint part 3 and damage it. In such a case, the joining force between the oblong rectangular wall part 1 and the back rectangular wall part 2 is increased. There is a shortage, one of them is damaged by the internal pressure of concrete and partially pushed out, and concrete leaks out from this pushed out portion.

The object of the present invention is mainly to provide a formwork concrete block which can prevent such problems.

[0006]

[Means for Solving the Problems]

 1 to 4 relate to the present invention and will be described below with reference to these drawings. First, the basic formwork concrete block according to the first invention is a formwork block in which a front side rectangular wall portion 1 and a back side rectangular wall portion 2 are connected by an intermediate joint portion 3 as shown in FIG. 1A. The vertical grooves b filled with joint mortar (including tiled cement) are provided on the left and right vertical side surfaces b.

As shown in FIG. 1B, the corner formwork concrete block according to the second aspect of the present invention connects the front side rectangular wall portion 1 and the back side rectangular wall portion 2 with the intermediate joint portion 3 and also connects the two rectangular wall portions. In a formwork block in which one side ends of the parts 1 and 2 are connected by a lateral wall part 4, among the vertical side surfaces b of the rectangular wall parts 1 and 2, the side on which the lateral wall part 4 does not exist is a joint mortar. It is assumed that a vertical groove m to be filled with is provided.

The vertical groove m may have an appropriate length and an arbitrary cross-sectional shape, but generally has a semicircular cross-section with a diameter of about 10 mm, and each vertical side surface b has the same side surface approximately at the center of its width. It is formed over the entire length of b.

In the concrete formwork concrete block, lateral grooves n filled with joint mortar are provided on the upper and lower lateral side surfaces a of each of the rectangular walls 1 and 2, and the lateral groove n has an arbitrary length. Although it may have an arbitrary cross-sectional shape, it is generally assumed that it has a semicircular cross section with a diameter of about 10 mm and is formed substantially at the center of each lateral side surface a over the entire length of the same side surface a.

On the other hand, in the concrete formwork block for corners, the upper and lower lateral sides a of the rectangular walls 1 and 2 and the upper and lower lateral sides a of the lateral wall 4 are filled with joint mortar. The horizontal groove n has a semicircular cross section with a diameter of about 10 mm according to the horizontal groove n in the basic formwork concrete block, and the horizontal walls 1 and 2 and the horizontal wall 4 have horizontal cross sections. It is assumed that they are provided in a straight line over the entire length of the side surfaces a at approximately the center of the width of the side surfaces a.

Unlike the vertical groove m, the horizontal groove n is not always required to achieve the object of the present invention, but it is extremely desirable to provide it.

Further, if necessary, a vertical notch groove k for partially dividing the rectangular wall portion 2 is provided at an appropriate position on the inner surface of the rear rectangular wall portion 2 of each block.

[0013]

[Action, etc.]

 The block of the present invention is used by stacking it in a vertical wall shape. For example, as shown in FIG. 2, the corner formwork concrete block B2 is formed at the corner of the connecting portion of the outer wall surfaces w1 and w1 which are orthogonal to each other. Are arranged in a tiered manner, and the basic formwork concrete blocks B1 are laid in a tiered manner at other locations.

Immediately before stacking, the blocks B1 and B2 are supplied with joint mortar into the vertical groove m and the horizontal groove n, and are sequentially stacked.

The thickness of the joint mortar between the vertical side surfaces b and the horizontal side surfaces a of the blocks B1 and B2 may be set appropriately, but the dimensions of each block may be designed appropriately. For example, the vertical side surface b and the horizontal side surface a can be brought into close contact with each other by setting the thickness of the joint mortar to zero. In this case, it is sufficient to supply a relatively small amount of joint mortar only into the vertical and horizontal grooves m and n. The stacking work is easier than before.

A part of the rear rectangular wall portion 2 of the corner form block B2 is removed by hitting it with a hammer or the like when stacking steps of this block, and since the notch groove k exists, the specific portion p1 is notched. It is relatively easily removed into a constant shape along the groove k, so that the space s1 on one outer wall surface portion and the space s2 on the other outer wall surface portion are connected to each other.

A ladder bar h is generally fixed to a certain length portion on the lateral side surfaces a of the corner formwork concrete block B2 and the plurality of basic formwork concrete blocks B1. The ladder streak h is fixed by inserting the obstructing concrete portion of the lateral side surface a where the lateral groove n was present into the lateral groove a by crushing it with a hammer. In the fixed state, the blocks B1 and B2 are prevented from moving away from each other.

The blocks B1 and B2 are stacked by repeating the arrangement shown in FIG. 1 until the required height is reached, and rebars (not shown) are fixed at required locations.

After the joint mortar of the block construction thus formed is appropriately solidified, concrete is poured into the spaces s1 and s2 between the front side rectangular wall portion 1 and the back side rectangular wall portion 2. At the same time, a vibrator is used to apply vibration to this cast concrete.

At this time, the main part of the vibrator may damage the intermediate joint part 3, but the joint mortar between the vertical side surfaces b of the adjacent blocks B1, ..., B2 ... In order to be able to strongly counteract the force in the direction orthogonal to the front and back rectangular walls 1 and 2 of the adjacent blocks B1 and B2 solidified in m by the locking action of the vertical groove m and the joint mortar Since it is in a state of being joined to the concrete wall, the conventional situation in which a part of the rectangular wall portions 1 and 2 is cracked by the internal pressure due to the placing concrete and the concrete leaks out does not occur.

As shown in FIG. 3, generally only the basic formwork concrete block B2 is used at the connection portion of the outer wall surface part w1 and the partition wall part w2 orthogonal to the outer wall surface part w1. The specific portion p2 of the back surface rectangular wall portion 2 is removed by hitting with a hammer or the like, whereby the specific portion p2 is easily removed into a constant shape along the cutout groove k.

The ladder lines h are fitted in the lateral grooves n on the lateral side surfaces a of the plurality of blocks B2 in the same manner as described above, and prevent the adjacent blocks B2 ...

On the blocks B2 ... Arranged in this way, the blocks B2 are further stacked in a similar arrangement if necessary, and reinforcing bars are arranged as necessary.

In addition, when the blocks of the present invention are stacked, for example, as shown in FIG. 4, it may be necessary to extend the reinforcing bar to the back side of the block. In such a case, the specific location p2 of the back rectangular wall 2 is also required. The p3 is hit with a hammer or the like so that the specific portions p2 and p3 can be easily removed along the notch groove k into a constant shape.

The above-described use example is merely an example, and the block of the present invention can be used in various other modes.

[0026]

[Effect of device]

 According to the present invention configured as described above, when the jointed mortar solidified in the vertical groove when stacked, the vertical side surfaces of the rectangular wall portion are formed into the rectangular wall portion by the locking force acting between them. Since the connection is made so as to strongly oppose the force in the orthogonal direction, even if the intermediate joint is damaged when the concrete is poured into the inner spaces s1 and s2, a part of the rectangular wall will crack. Concrete will not leak out, and since joint mortar exists in the vertical groove, the vertical side faces should be in direct contact with each other, that is, without joint mortar. This makes it possible to carry out block construction work quickly and easily, which is extremely effective.

According to the fourth aspect, the joint mortar solidified in the lateral groove joins the lateral side surfaces of the rectangular wall portion to each other to reinforce the joint force of the joint mortar in the vertical groove, and Since the joint mortar exists inside, it becomes possible to bring the lateral sides into close contact with each other, further increasing the benefit of providing the vertical groove.

According to the eighth aspect, the presence of the notch groove makes it possible to easily remove a necessary portion of the back side rectangular wall portion into a fixed shape, and form a form for connecting the intersecting slabs. It is to facilitate the fixing of steel bars and rebar.

[Brief description of drawings]

1 is a block diagram of the present invention, A is a diagram of a basic formwork concrete block, B is a diagram of a corner formwork concrete block.

FIG. 2 is a plan view showing a connection portion of orthogonal outer wall surface portions according to a usage example of the block of the present invention.

FIG. 3 is a plan view showing a joint portion between an outer wall surface portion and a partition wall portion according to the use example.

FIG. 4 is an explanatory view showing the relationship between the block of the present invention and the reinforcing bar.

FIG. 5 shows a conventional example, A is a diagram of a basic formwork concrete block, and B is a diagram of a corner formwork concrete block.

[Explanation of symbols]

 1 front side rectangular wall part 2 back side rectangular wall part 3 intermediate joint part 4 lateral wall part a lateral side face b vertical side face k notched groove m vertical groove n lateral groove

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display area E04B 2/86 A

Claims (8)

[Scope of utility model registration request] 1. A formwork block in which a front side rectangular wall portion and a back side rectangular wall portion are connected by an intermediate joint portion, and vertical grooves on which the joint mortar is filled are provided on the left and right vertical side surfaces of each rectangular wall portion. Basic formwork concrete block characterized by. 2. A formwork block in which a front side rectangular wall portion and a back side rectangular wall portion are connected by an intermediate joint portion and one side end portions of the two rectangular wall portions are connected by a lateral wall portion. A formwork concrete block for corners, characterized in that a vertical groove filled with joint mortar is provided on one of the vertical side surfaces of the portion where the horizontal wall portion does not exist. 3. The concrete formwork concrete block according to claim 1 or the corner formwork concrete block according to claim 2, wherein the vertical groove has a semicircular cross section with a diameter of about 10 mm, and A formwork concrete block characterized in that it is formed over the entire length in the center of the width. 4. The basic formwork concrete block according to claim 1, wherein horizontal grooves on which the joint mortar is filled are provided on the upper and lower horizontal side surfaces of each rectangular wall portion. 5. The corner formwork concrete block according to claim 2, wherein upper and lower lateral side surfaces of each rectangular wall portion and lateral groove portions filled with joint mortar are provided on the upper and lower lateral side surfaces of the lateral wall portion. . 6. The basic formwork concrete block according to claim 4, wherein the lateral groove has a semi-circular cross section with a diameter of about 10 mm, and is formed at approximately the center of each lateral surface over its entire length. . 7. The lateral groove has a semi-circular cross section with a diameter of about 10 mm, and is provided in a straight line over the entire length of the rectangular wall portion and the lateral side surface of the lateral wall portion at the approximate width center thereof. The formwork concrete block for corners according to Item 2. 8. The basic formwork concrete block according to claim 1 or the corner formwork concrete block according to claim 2, wherein the rectangular wall portion is partly divided at an appropriate location on the inner surface of the backside rectangular wall portion. A formwork concrete block having a vertical cutout groove for forming.