JPH047224Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention can be used to construct stepped walls on the sloped ground of embankments and seawalls of rivers, coasts, lakes, etc., or on the sloped ground of parks and playgrounds, etc. This is related to the block that will be displayed.

(Prior art) A stair block is constructed by connecting the rear end of a horizontal tread to the upper end of the slanted main siding, and providing a support between the slanted main siding and the horizontal tread. As a type of construction, it can be laid on sloping ground to form a seawall or a wall for spectator seats, and can be used as a step for walking on the wall, or as a step for seating when fishing or for exercise. It has already been proposed to use it as a seating tier when watching competitions, etc.

(Problem that the invention aims to solve) However, in conventional stair blocks, there is no particular means for quickly and accurately removing rainwater and washing water, so rainwater and washing water remain on the horizontal treads. The horizontal tread surface did not dry until a considerable period of time had passed after rain or after cleaning the seat surface.

If the horizontal tread gets wet and there are puddles, there is a risk that pedestrians may slip and fall into the river, etc., and anglers and spectators may hesitate to take a seat, so the seating steps may be removed. This will reduce the utilization rate as a surface.

Furthermore, with conventional stair blocks, it has been pointed out that there is a risk that rainwater, etc. may enter the back side of the sloped main block and infiltrate the supporting ground of the sloped main block, causing the earth and sand in that area to flow out. Measures to prevent the collapse of seawalls and viewing walls are desired.

Therefore, the purpose of this invention is that the upper surface of the horizontal tread dries relatively quickly, allowing the horizontal tread to be used safely and comfortably as an aisle step or seat step, and also to prevent rainwater from flowing around the back side of the main slanted tread. To provide a stair block that is free from the risk of soil and sand on the supporting ground flowing out.

(Means for Solving the Problems) The stair block of the present invention will be explained below using the reference numerals in the attached drawings. Upper end 1a
It consists of a horizontal treadle 2 to which the rear end 2b is connected, and a support 3 provided between the inclined main tread 1 and the horizontal treadle 2,
Slanted main slab 1 on one or both of horizontal tread 2 and support 3
A drain passage 4 is provided to guide rainwater etc. to the upper surface, and the rainwater etc. led to the upper surface of the inclined main block 1 is made to flow down to the upper surface of the horizontal step 2 of the adjacent lower block.

(Function) When constructing a river revetment wall or a viewing wall for a sports field using this stair block, the sloped ground 5 on which the sloped main slab 1 is laid can be filled with gravel or crushed stone at the foundation as necessary to create a surface layer. The main slab 1 is finished at a predetermined angle of inclination by applying sand or the like to the main slab 1, and the main slab 1 is installed on the sloping ground 5 so that the horizontal step 2 is in a horizontal position.

As shown in FIG. 8, on the lower flat ground 8 that is continuous with the lower end of the sloping ground 5, foundation concrete members 7 are fixedly installed on the cast-in-place concrete foundation 6 as necessary, and the stair blocks are arranged sequentially from the bottom. It is piled up.

In the stepped wall constructed as shown in Fig. 7, rainwater etc. on the upper surface of the horizontal tread 2 is drained through the drainage channel 4.
is guided to the upper surface of the inclined main plate 1 through the inclined main plate 1.
It flows down from the top surface to the top surface of the horizontal tread 2 of the lower stair block. In this way, rainwater, etc. moves to the lowest stair block while not flowing around the back surface of the inclined main block 1, and is discharged to the flat ground 8 adjacent to the lower end of the inclined ground 5. As shown in Fig. 8, if the water surface 17 on the bank wall surface exceeds a part of the stair block, rainwater, etc. will flow into the water surface 17.

(Embodiment) In the embodiments shown in FIGS. 1 to 8, the drain passage 4 is formed by a horizontal groove 4a formed through the upper surface of the front end of the horizontal treadle 2 in the left-right direction, and a lateral groove 4a formed at the rear end of the horizontal treadle 2. A horizontal groove 4b is formed in the upper surface of the support column 3 in the left and right direction, and a horizontal groove 4b is formed in the side surface of the support column 3 at both the left and right ends, and the upper end thereof is formed in the horizontal groove 4b.
It is composed of an inclined groove 4c that communicates with the left and right ends of the support column 3 and whose lower end is open to the front of the support column 3, and a vertical groove 4d that communicates the left and right ends of the horizontal groove 4a and the inclined groove 4c.

In this embodiment, rain water and washing water to the horizontal step plate 2 flow into the horizontal grooves 4a, 4b, and the horizontal grooves 4a, 4b
It is guided to the left and right ends of the horizontal stepping board 2 along the horizontal step plate 2, flows down into the inclined groove 4c directly or through the vertical groove 4d, and reaches the upper surface of the left and right ends of the inclined main board 1. This rainwater and washing water further flows along the upper surface of the inclined main slab 1 to the upper surfaces of the left and right ends of the horizontal treads 2 of the lower stair block.

The horizontal groove 4a at the front end of the horizontal stepping board 2
It increases the frictional resistance between the soles of the feet or shoes of the person walking on it and the horizontal tread plate 2, and also functions as a good anti-slip means. A large number of lateral grooves 4a may be provided on the entire surface of the horizontal stepping board 2.

Furthermore, in this embodiment, since a relatively deep cavity 4e is provided between the pillars 3, 3, when building a revetment wall for a river, etc., the cavity 4e of the stair block below the water level 17 is suitable. It can be used as a fish nest space. Further, the cavity 4e of the stair block above the water level 17 can be used as a suitable storage space for luggage. When constructing a viewing wall for a park, sports, etc., the cavity 4e of the entire staircase block from top to bottom can be used as a storage space for baggage, etc. Due to the existence of the hollow portion 4e, the entire upper surface of the horizontal treadle 2 can be effectively used as a passage step surface or a seat step surface, and baggage does not become an obstacle for walking, sitting, fishing, etc.

Although this is not related to the elimination of rain water, which is the subject of the present invention, the stair blocks of this embodiment have an interlock system that allows adjacent stair blocks vertically, horizontally, and vertically to be laid in an orderly manner, and to accurately prevent mutual displacement. A mold joining structure is added.

This interlock type joint structure
Male protrusions 9 with corresponding guiding surfaces at the upper and lower ends of the
A plurality of female type recesses 10 are formed discontinuously, a concave plane 11 is formed between the male type protrusions 9, and a female type recess 1 is formed.
A convex plane 12 is formed between 0 and 10, and the inclined main plate 1
The upper and lower ends of the connecting hole 13 passing through the convex plane 12
The concave plane 11 is opened.

During construction, the lowest staircase block is stacked on the cast-in-place foundation concrete section or foundation concrete member 7. This lowest basic type stair block is slightly different from the basic type stair blocks stacked above it in the shape and position of the male protrusion 9.

By tightly fitting the male protrusion 9 of the upper stair block into the female recess 10 of the lower stair block, and bringing the convex surface 12 of the lower stair block into contact with the concave surface 11 of the upper stair block. , the upper and lower stair blocks are stacked one after another. At this time, the left and right inclined guide surfaces 9a of the male protrusion 9 having a triangular cross section,
9b and the upper and lower inclined guiding surfaces 9c and 9d are the left and right inclined guiding surfaces 10 of the female projection 10 having a triangular cross section.
a, 10b and upper and lower inclined guide surfaces 10c, 10d
The upper, lower, left, and right inclined main plates 1, 1 are guided to occupy a predetermined joining position.

Then, the connecting reinforcing bars 14 are fixed to the rooted reinforcing bars protruding from the foundation concrete member 7 or the connecting reinforcing bars 14 whose ends are buried and fixed in the foundation concrete member 7.
are inserted into the connecting holes 13, 13 of the vertically adjacent stair blocks as shown in FIG.
In order to improve the workability of inserting the connecting reinforcing bars, connecting holes 1
3 has an elliptical cross section.

The connecting reinforcing bars 14, in which one or more reinforcing bars are spliced as appropriate, are tensioned, and the upper ends of the connecting reinforcing bars 14 are inserted and fixed into the crown concrete slab part 16 cast in the upper flat ground 15 that is continuous with the upper end of the sloping ground 5. . Incidentally, the gap between the connecting hole 13 and the connecting reinforcing bar 14 can also be filled with mortar.

In the embodiment shown in FIGS. 9 and 10, the drain passage 4 includes a horizontal groove 4a formed in the left-right direction on the upper surface of the front end of the horizontal step 2, and a horizontal groove 4a formed in the upper surface of the rear end of the horizontal step 2 in the left-right direction. A horizontal groove 4b formed in the horizontal groove 4b, a cavity 4e between the right and left adjacent columns 3, 3, a vertical hole 4f connecting the horizontal groove 4a and the cavity 4e, and a horizontal groove 4b cavity 4
and an inclined through hole 4g that connects the hole 4g.

In this embodiment, rain water and cleaning water flowing into the horizontal tread 2 flow into the horizontal grooves 4a and 4b, are guided to the vertical hole 4f and the slanted through hole 4g, and pass through the cavity 4e to the slanted main stile 1.
reaches the top of the main body. Further, rainwater and the like flow along the upper surface of the inclined main slab 1 to the upper surface of the main body of the horizontal tread 2 of the lower staircase block. Incidentally, in this embodiment as well, an interlock type junction structure similar to that described above is added.

In the embodiment shown in FIG. 11, the drain passage 4 includes a horizontal groove 4a formed in the left-right direction on the upper surface of the front end of the horizontal step 2, a cavity 4e between the left and right adjacent columns 3, and a horizontal groove. 4a and a vertical hole 4f that communicates the hollow portion 4e.

In the embodiment shown in FIG. 12, the drain passage 4 has an open upper end in the hollow part 4e between the left and right adjacent pillars 3 and the upper surface of the rear end of the horizontal tread 2, and a hollow lower end. It is composed of an inclined through hole 4h opened in the portion 4e.

In the embodiment shown in FIG. 13, the drain passage 4 has a cavity 4e between the right and left adjacent pillars 3, 3, an upper end opening on the upper surface of the front end of the horizontal treadle 2, and a lower end opening in the cavity 4e. It is composed of a vertical hole 4i opened in 4e.

In the embodiment shown in FIGS. 14 and 15, the drain passage 4 has a hollow portion 4e between the left and right adjacent pillars 3, and an upper end thereof opens on the upper surface of the rear end of the horizontal treadle 2. An inclined groove hole 4j whose lower end opens into the cavity 4e.
It is made up of. A non-slip protrusion 18 is provided on the entire upper surface of the horizontal treadle 2, and the upper surface of the horizontal treadle 2 is provided with an slanted groove hole 4j in order to promote the inflow of rainwater etc. into the slanted groove hole 4j. A slope α is added so that the sides are lower. It should be noted that this embodiment also includes an interlock type junction structure similar to those of the above embodiments.

The shape and structure of this drain passage 4 is not particularly limited to the above-mentioned one, and is appropriately designed and selected so that rainwater, etc. flows down along the upper surface of the inclined main plate 1 without entering under the inclined main plate 1.

(Effects of the invention) As described above, the present invention includes the inclined main slab 1 laid on the inclined ground 5, and the horizontal step slab 2 whose rear end 2b is connected to the upper end 1a of the inclined main slab 1. , in a staircase block consisting of a support 3 provided between an inclined main step 1 and a horizontal step 2, a drain passage 4 is provided in one or both of the horizontal step 2 and the support 3 to guide rainwater etc. to the upper surface of the inclined main step 1. Since the rainwater, washing water, etc. led to the upper surface of the inclined main block 1 are made to flow down to the upper surface of the horizontal stepboard 2 of the adjacent lower block, the rainwater etc. can be quickly and accurately removed, and the rainwater and washing water can be removed quickly and accurately. After cleaning the seat surface, the horizontal tread surface will dry within a relatively short period of time.

Therefore, the puddle on the top surface of the horizontal treadle 2 does not impede the use of the horizontal treadle 2 as a cross-section of the passage, and pedestrians who slip on the wet horizontal treadle 2 can walk into rivers, etc. The risk of falling is greatly reduced, and anglers and spectators can quickly and effectively use the horizontal tread 2 as a seat section in a comfortable condition.

In addition, since the stair block of the present invention has the drain passage 4, there is no risk that rainwater, etc. will go around the back side of the main slope and wash away the earth and sand on the supporting ground, and the revetment wall surface due to earth and sand runoff is eliminated. Collapse of the viewing wall is accurately prevented.

[Brief explanation of the drawing]

1 to 8 show a stair block according to an embodiment of the present invention, FIG. 1 is a perspective view of the stair block, FIG. 2 is a front view of the stair block, and FIG. 3 is a front view of the stair block. 4 is a left side view of the stair block, FIG. 5 is a sectional view taken along the line A-A in FIG. 2, FIG. 6 is a sectional view taken along the line B-B in FIG. 2, and FIG. FIG. 8 is a perspective view showing how the stair blocks are used, and FIG. 8 is a longitudinal sectional view showing an example of how the stair blocks are stacked. FIG. 9 is a plan view of a stair block according to another embodiment of the present invention, and FIG.
It is a sectional view taken along the D line. FIG. 11 is a vertical cross-sectional view of a stair block according to another embodiment of the present invention, FIG. 12 is a vertical cross-sectional view of a stair block according to yet another embodiment of the present invention, and FIG. 13 is a longitudinal cross-sectional view of a stair block according to yet another embodiment of the present invention. FIG. 3 is a vertical cross-sectional view of a stair block according to an embodiment of the present invention. FIG. 14 is a perspective view of a stair block according to still another embodiment of the present invention, and FIG. 15 is a longitudinal sectional view of the stair block. FIG. 16 is a sectional view taken along the line C--C in FIG. 4 of the stair blocks in a stacked state. 1... Slanted main slab, 2... Horizontal tread, 3... Support, 4... Drainage path, 5... Sloped ground, 7... Foundation concrete member, 8... Lower level ground, 9...
Male projection, 10...Female recess, 11...Concave plane,
12... Convex plane, 13... Connecting hole, 14... Connecting reinforcing bar, 15... Upper flat ground, 16... Top concrete slab, 17... Water surface, 18... Anti-slip protrusion.

Claims (1)

[Scope of utility model registration request] A slanted main slab 1 laid on a sloping ground 5, a horizontal tread 2 whose rear end 2b is connected to the upper end 1a of the slanted main slate 1, and a horizontal tread 2 installed between the slanted main slab 1 and the horizontal tread 2. A drain passage 4 is provided on one or both of the horizontal tread 2 and the support 3 to guide rainwater, etc. to the upper surface of the slanted main slab 1, and the rainwater etc. guided to the upper surface of the slanted main slab 1 is drained from the adjacent slanted main slab 1. A stair block that flows down to the upper surface of the horizontal tread 2 of the lower block.