JP3004797U - Foundation block - Google Patents

Abstract

(57) [Abstract] [Purpose] It can also be used as a foundation so that other blocks stacked on top can be supported in a state where it is difficult to tilt. [Structure] A block portion 2 having a rectangular planar shape and a side surface shape, and a collar portion 3 provided at a lower end portion on the back surface side of the block portion 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a foundation block suitable for use when, for example, blocks made of concrete are stacked to form a fence.

[0002]

[Prior art]

 Conventionally, when building a fence using rectangular parallelepiped blocks having a rectangular plan shape and side surface shape, the foundation is placed with concrete and the blocks are sequentially stacked on this foundation. Reinforcing bars are erected at a predetermined interval on the foundation, the reinforcing bars are inserted into the through holes of the block to sequentially stack the blocks, and the through holes and the like are filled with concrete to fix the blocks to the foundation.

[0003]

[Problems to be solved by the device]

 Traditional blocks are simply rectangular parallelepipeds, so a foundation is needed to build them up to build a fence. The wall constructed by stacking blocks has a disadvantage that it is easily tilted when a large external force is applied due to an earthquake or the like because it is fixed to the foundation and has a small upright support area.

The present invention has been made in order to eliminate the above-mentioned inconvenience, and can be used as a foundation, and can support other blocks stacked on the foundation in a state in which it is hard to tilt. Block for use.

[0005]

[Means for Solving the Problems]

 First, the foundation block according to the first invention is composed of a block portion having a rectangular planar shape and a side surface shape, and a flange portion provided on at least one side of the lower ends of the front and back of the block portion. Is. Next, a foundation block according to a second invention is provided with a block portion whose plane shape is curved in an arc shape and whose side cross-sectional shape is rectangular, and at least the short diameter side of the lower end of the front and back of this block portion. It is composed of a collar part.

[0006]

[Action]

 In the foundation block according to the present invention, since the brim portion is provided on at least one side of the block portion, the block portion and the brim portion contact the lower portion and stand upright, so that the supporting area is wide.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 is a perspective view showing a foundation block according to a first embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 is a reinforcing iron used in the foundation block of FIG. Fig. 4 is a perspective view of a muscle, and Fig. 4 is a perspective view showing a part of the fence constructed by using the foundation block of Fig. 1 by breaking it.

In these drawings, reference numeral 1 denotes a foundation block formed of concrete, including a block portion 2 having a rectangular plan shape and a side surface shape, and a collar portion 3 provided at a lower end portion on the back surface side of the block portion 2. And a reinforcing bar 4 extending from the block portion 2 to the collar portion 3. The above-mentioned block part 2 is provided with a required number of through holes 2h in the vertical direction, and recesses 2d are also provided at both ends in the left and right direction, which are also open to the side surfaces that are half the through holes 2h. The lower surfaces of the block portion 2 and the collar portion 3 form the same plane.

Reference numeral 5 denotes a block formed of concrete, which has a rectangular planar shape and a side shape similar to that of the block portion 2. Like the block portion 2, a through hole 5h which is the same as the through hole 2h in the vertical direction is required. A plurality of recesses 5d are provided at both ends in the left-right direction, and the through-holes 5h are halved and side surfaces are also opened. B is a foundation where concrete is cast, I is a reinforcing bar erected on the foundation B at a predetermined interval, and C is a pile formed on the foundation B or formed by through holes 2h and 5h or concave portions 2d and 5d. Filled with concrete, F shows a fence.

Next, the construction of the fence will be described. First, concrete is placed at the position where the wall F is to be constructed so that the upper surface is horizontal, and the foundation B is made. At this time, the reinforcing bars I are erected on the foundation B at predetermined intervals. Next, after concrete C is laid on the foundation B, the reinforcing block I is inserted into the through hole 2h and the foundation blocks 1 are sequentially arranged on the foundation B as a first-stage block. Concrete C is filled in the hole formed in 2d to fix the foundation block 1 to the foundation B. At this time, joints are formed on the foundation B or the concrete C filled in the hole formed by the recess 2d.

After placing concrete C on the foundation block 1, the reinforcing bars I are inserted into the through holes 5h, and the blocks 5 are sequentially placed on the foundation block 1 in a staggered manner as a second block. The blocks 5 are fixed to the base block 1 by arranging them in a line and filling the holes formed by the through holes 5h and the recesses 5d with concrete C. At this time, the joints are formed on the foundation block 1 or the concrete C filled in the holes formed by the recesses 2d. By stacking blocks from the third stage onward in the same manner as the blocks 5 on the second stage, a fence F can be constructed as shown in FIG.

As described above, according to the first embodiment of the present invention, since the brim portion 3 is provided at the lower end portion on the back surface side of the block portion 2, the supporting area which is in contact with the foundation B and stands upright. The fence can be supported in a state in which it is difficult to tilt the fence F even if a large external force is applied due to an earthquake or the like. Since the reinforcing bar 4 is arranged from the block portion 2 to the collar portion 3, the collar portion 3 does not separate from the block portion 2 even if a large force is applied to the collar portion 3, and the stability is maintained. You can

FIG. 5 is a perspective view showing a foundation block according to a second embodiment of the present invention, FIG. 6 is a sectional view taken along line BB of FIG. 5, and FIG. 7 is used for the foundation block of FIG. Fig. 8 is a perspective view showing a part of the reinforcing bar which is constructed by using the foundation block of Fig. 5 by breaking it. In these drawings, reference numeral 11 denotes a foundation block made of concrete. The block portion 12 has a planar shape curved in an arc shape and a side cross-sectional shape is rectangular, and the back surface side of the block portion 12, that is, a short diameter. It is composed of a collar portion 13 provided at the lower end portion on the side and a reinforcing rebar 14 extending from the block portion 12 to the collar portion 13.

The above-mentioned block portion 12 is provided with a required number of through holes 12h in the up-down direction, and recesses 12d are formed at both ends in the left-right direction and are also open to the side surface that is a half of the through hole 12h. The lower surfaces of the block portion 12 and the flange portion 13 form the same plane. Reference numeral 15 denotes a block formed of concrete, which has the same rectangular shape in plan and side cross-section as the block portion 12, and similarly to the block portion 12, a required number of through holes 15h identical to the through holes 12h are provided in the vertical direction. Accordingly, recesses 15d are provided at both ends in the left-right direction, which are open to the side surfaces that are half the through holes 15h. B is a concrete cast foundation, I is a reinforcing bar erected on the foundation B at a predetermined interval, C is laid on the foundation B, and is formed with through holes 12h and 15h or recesses 12d and 15d. Concrete filled in the holes, F indicates a fence.

Since the construction of the fence F using the foundation block 11 of the second embodiment is the same as that of the foundation block 1 of the first embodiment, the description thereof will be omitted. Also in the second embodiment, the same effect as in the first embodiment can be obtained, and the curved surface portion can be finished neatly. Then, by changing the curvature, it is possible to neatly construct a fence F having various curvatures, a cylindrical gate pillar, and the like.

In each of the above-described embodiments, an example in which the flange portions 3 and 13 are provided on one side has been described, but the flange portions 3 and 13 are provided on the other side of the block portions 2 and 12, that is, on the front surface side or the long diameter side. It can also be installed on both sides or on both sides. If the brim parts 3 and 13 are installed on both sides of the block parts 2 and 12, the supporting area will be wider and it will be more difficult to tilt. You can

[0017]

[Effect of device]

 As described above, according to the present invention, since the brim is provided on at least one side of the lower ends of the front and back sides of the block, the supporting area that comes into contact with the foundation and stands upright is wide, and a large area due to an earthquake etc. Even if an external force is applied, the blocks stacked on top can be supported in a state in which they do not tilt easily. When the collar portions are provided on both sides of the front and back of the block portion, the supporting area becomes larger and it becomes more difficult to tilt, so that it can be used as a foundation. In addition, since the planar shape of the block part is curved in an arc shape, the curved surface part can be finished neatly, and by changing the curvature, fences with various curvatures and columnar gate pillars are beautifully constructed. can do.

[Brief description of drawings]

FIG. 1 is a perspective view showing a foundation block which is a first embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

3 is a perspective view of a reinforcing bar used in the foundation block of FIG. 1. FIG.

FIG. 4 is a perspective view showing a part of a fence constructed by using the foundation block of FIG. 1 by breaking it.

FIG. 5 is a perspective view showing a basic block which is a second embodiment of the present invention.

6 is a cross-sectional view taken along the line BB of FIG.

FIG. 7 is a perspective view of a reinforcing bar used in the foundation block of FIG.

FIG. 8 is a perspective view showing a part of a fence constructed by using the foundation block of FIG. 5 by breaking it.

[Explanation of symbols]

 1,11 Foundation block 2,12 Block part 2h, 12h Through hole 2d, 12d Recessed part 3,13 Collar part 4,14 Reinforced reinforcing bar

Claims (2)

[Scope of utility model registration request] 1. A foundation block comprising a block portion having a rectangular planar shape and a side surface shape, and a flange portion provided on at least one side of lower ends of front and back surfaces of the block portion. 2. A basic block comprising a block portion having a circular arc-shaped planar shape and a rectangular side cross-sectional shape, and a flange portion provided on at least a shorter diameter side of lower ends of front and back surfaces of the block portion.