JPS64463Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial field of application) The present invention is a joint between gutter blocks in which the upper parts of a pair of opposing side walls are integrally connected by a connecting beam and the lower part is completely open. Regarding structure.

(Prior Art) For example, as shown in FIG. 2, a gate-shaped gutter block in which the upper parts of a pair of opposing side walls are integrally connected by a connecting beam and the lower part is completely open is known. In order to construct a gutter using such gutter blocks, the side walls of the gutter blocks are placed on the base concrete surface and joined in sequence, and bottom concrete is poured into the entire open bottom of the lower part to form the gutter bottom. The gutter is completed by backfilling the space between the side wall and the excavated space with earth and sand before or after placing the bottom concrete.

(Problems to be solved by the invention) When constructing a gutter using such a gutter block, since the lower part of the gutter block is completely open,
Although it has the advantage of being able to easily and freely construct the slope of the gutter bottom regardless of the road slope, conventional construction has had various problems as described below.

Firstly, because the lower part is completely open, in other words, both walls have a cantilever-like structure, so when backfilling with earth and sand, both walls are pushed inward by earth pressure. In addition to this, when pouring the bottom concrete, the side wall members tended to expand outward due to the pouring pressure, resulting in excessive deformation of the gutter blocks and a decrease in the strength of the gutter. There was a fear that he might invite her. Secondly, the dead weight of the gutter blocks and the load in the direction of gravity applied to them are concentrated on the base concrete part that contacts the lower end surface of the side walls, which causes uneven settlement at the joints of the gutter blocks, causing the gutter blocks to overlap each other. There was a problem with the joints coming apart. Thirdly, when pouring base concrete, it is virtually impossible to finish the pouring surface flat according to the longitudinal cross-sectional slope of the waterway, so gutter blocks are simply placed on the base concrete surface. If the gutter block is simply placed, it will wobble due to the unevenness of the base concrete surface. Therefore, when installing the gutter block, it was necessary to interpose a level adjustment piece on the lower end surface of the side wall and the base concrete surface to adjust the level of the heavy gutter block, resulting in extremely poor construction efficiency.

The object of the present invention is to provide a gutter block joint structure that can solve these problems all at once.

(Means for Solving the Problems) The joint structure (hereinafter referred to as structure) of the gutter block according to the present invention integrally connects the upper parts of a pair of opposing side walls 6, 6 with a connecting beam 7. It comprises a side gutter block 1 formed so that the lower part between both side walls 6, 6 is completely open, and a base member 5, and a side wall lower end 3 of the joint end portions 2, 2 between the side gutter blocks 1, 1. . Part 1
6, and the other is a second locking part 17 held from both sides by the holding part.
The side wall lower end portions 3, 3, 3, 3 are placed on the base member 5 with the first locking portion 16 and the second locking portion 17 engaged. It is characterized by

(Example) Examples of the present invention will be described below based on the drawings.

1 to 4, the structure of the present invention is such that lower end portions 3, 3, 3, 3 of side walls of joint end portions 2, 2 of gutter blocks 1, 1 are supported by a base member 5.

As shown in FIG. 2, the gutter block 1 has a connecting beam 7, which connects the upper portions of both ends of a pair of opposing side walls 6, 6.
7, and both side walls 6, 6.
It is formed so that the lower part of the space is completely open,
The side wall lower end portions 3, 3, 3 of the joint end portions 2, 2,
3 is provided with an outer fitting recess 9 and an inner fitting recess 10 by cutting out an outer end portion and a slightly inner inner surface thereof by about half the thickness of the side wall 6, respectively.

As shown in FIG.
are the supporting portions 12, 12 of the lower end portion 3 of the side wall, and in each of the both side portions 12a, 12a,
Inner holding parts 13, 13 that fit into the inner fitting recesses 10, 10 of the side gutter blocks 1, 1 to be joined are protrudingly provided at both end portions, and both inner holding parts 1
Outer holding parts 15, 15 that fit into the outer fitting recesses 9, 9 of the side gutter blocks 1, 1 to be joined are integrally protruded at intermediate positions between the blocks 3, 13, and the corresponding inner , the outer holding parts 13 and 15 constitute a first locking part 16. As shown in FIG. 3, the first locking part 16 has inner and outer holding parts 13,
15 and the inner and outer fitting recesses 10 and 9,
It is in a state of engagement with the second locking portion 17 which is the lower end portion 3 of the side wall. In the engaged state, the inner side surface 19 of the inner holding part 13 is flush with the inner side surface 20 of the side wall 6, and the outer side surface 21 of the outer holding part 15 is flush with the outer side surface 22 of the side wall 6 ( (See Figure 4).
Furthermore, on the upper surface of the board 11, in order to facilitate the installation of the base member 5, there is a reference line 2 in the direction in which the gutter passes.
3a, and a reference line 23b (a reference line for dividing blocks during construction) perpendicular to the reference line 23a.

As shown in FIG. 1, the base members 5 are positioned and installed on the base surface 25 at required intervals, and then the lower ends 3, 3 of the side walls of the joint end portions 2, 2 of the gutter blocks 1, 1 to be joined are assembled. ,3,3,
Inner and outer fitting recesses 10 and 9 and inner and outer holding parts 13 and 1
5 are fitted together, in other words, the first locking part 16 and the second locking part 17 are placed on the base member 5 in a state where they are engaged, so that the structure of the present invention can be realized. obtain. The connection between the gutter blocks 1 and 1 is as follows:
As shown in FIG. 1 or 4, the connecting beam 7,
This is done by inserting the bolt 27 into bolt holes 26, 26 provided on both sides of the bolt 7 and screwing it with a nut. Furthermore, as shown by the dashed line in FIG. 1, a gutter bottom 30 can be obtained by pouring bottom concrete 29 into the open bottom 28.
The side ditch can be completed by backfilling earth and sand between the side wall 6 and the excavated space (not shown). Note that the first
As shown in FIG.
Since it is formed as close to the base surface 25 as possible without contacting the base surface 25,
5 and the lower end surface 31, hardly any outflow of the bottom poured concrete is caused.

FIG. 5 shows the main parts of another embodiment of the structure of the present invention, in which the first locking part 16 formed on the side wall lower end 3 support portion 12 of the base member 5 is connected to the side wall lower end 3. It is configured as a pair of inner and outer holding parts 32 and 33 that sandwich the second locking part 17 from both sides. The outer holding part 33 is provided at the center of the support part 12, and both sides thereof are used as insertion parts 36 for inserting a level adjustment piece 35 having a wedge shape or the like in the direction of arrow F. . Note that since the level of the gutter block 1 is determined by the base member 5, the level adjustment piece 35 is not necessary in most cases, but even if it becomes necessary to finely adjust the level of the gutter block, By inserting the level adjustment piece 35 in the insertion portion 36, fine adjustment of the level can be easily performed (see FIG. 6). Note that when the level adjustment piece 35 is inserted, the level adjustment piece 3
In order to improve the stability of 5, the outer holding part 33 is
It is provided slightly inward from the side edge 39 of the substrate 11 so that the level adjustment piece mounting portion 37 is formed on the outside thereof (see FIGS. 5 and 6). In addition, in the same figure, 40 is a reference part provided in the same manner as in the case of FIG.

FIG. 7 shows another example of the base member 5, in which the middle part of the base member shown in FIG. 2 is cut out so that both supporting parts 12, 12 remain. It has a structure in which parts near both ends are connected by connecting members (angle members in the embodiment) 41, 41. When the base member 5 is configured in this way, it can be made lighter and can be easily transported or constructed. In addition, when the bottom concrete is poured, the concrete is filled between the supporting parts 12, 12 and the supporting parts are integrated, so as a result, the structure shown in Fig. 3 is obtained. Become. Note that in the base member 5 as well, a level adjustment piece 35 mounting portion 37 is provided outside the outer holding portion 15, as in the case of the base member shown in FIG. Also, the reference line 42 and reference marks 43, 4 shown in the same figure
3 forms a reference part which acts similarly to the reference part 23 shown in FIG. Incidentally, the base member 5 shown in FIG. 1 may be formed to have a level adjustment piece mounting portion 37.

Note that in all of the structures of the present invention described above, the base member 5 includes the first locking portion 16 and the side wall lower end portion 3 includes the second locking portion 17; Conversely, the side wall lower end 3 has the first locking part 16 and the base member 5 has the second locking part 17.
The structure of the present invention may be configured to include the following. In this case, for example, by forming a groove in the longitudinal center portion of the lower end surface of the side wall or a recess in the lower end, both opposing sides of the groove or the recess can be connected to the first locking part 16. Meanwhile, the base member 5 is provided with a second locking portion 17 that fits into the groove or recess.

(Effect of the invention) As a result of the structure of the invention configured as described above, the lower ends of both ends of both side walls of the side gutter block are connected to the base member by fitting the first locking part and the second locking part. The base member acts as a load-bearing beam that reinforces the lower end of the side wall of the gutter block, and as a result, the side wall is prevented from deformation during pouring of bottom concrete or backfilling, and is stabilized. This means that it will be possible to construct side gutters with

Furthermore, since both joint end portions of the gutter blocks to be joined are placed on the base member, the base member reliably prevents uneven settlement of the joint parts of the gutter blocks, and therefore, the gutter blocks can be connected to each other. There is no risk of the joints coming apart.

Furthermore, level adjustment of the gutter block can be carried out by adjusting the level of the base member, so that in most cases it is not necessary to level the gutter block itself, which is a heavy object. It can be expected to improve construction efficiency.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is a perspective view illustrating the gutter block and base member used in the structure of the present invention, FIG. 3 is a sectional view showing the engaged state of the first locking part and the second locking part, and FIG. 5 is a perspective view showing the main part of the structure of the present invention, FIG. 5 is a perspective view showing another example of the base member along with its usage state, and FIG. 6 is a perspective view showing a level adjustment piece between the lower end surface of the side wall and the base member. FIG. 7 is a cross-sectional view showing the inserted state, and a perspective view showing another example of the base member. 1... Side gutter block, 2... Joint end portion, 3...
... lower end of side wall, 5 ... base member, 6 ... side gutter,
7... Connection beam, 12... Support part, 16... First
A locking portion, 17... a second locking portion.

Claims (1)

[Scope of utility model registration request] A connecting beam 7 connects the upper parts of a pair of opposing side walls 6, 6.
It comprises a gutter block 1 and a base member 5, which are integrally connected by the side walls 6, 6 and are formed so that the lower part between the side walls 6, 6 is completely open. The lower end portions 3, 3, 3, 3 of the side walls of 2, 2 are supported by the base member 5, and either the lower end portion 3 or the lower end portion 3 supporting portion 12 of the base member 5 is supported by a corresponding holding member. The second locking portion 16 is held from both sides by the holding portion, and the first locking portion 16 is held from both sides by the holding portion. The locking part 16 and the second locking part 17
When the lower end portions of the side walls 3, 3, 3, 3 are engaged,
A joint structure of a side gutter block, characterized in that a block is placed on a base member 5.