JPS63833Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention includes a first fitting body and a second fitting body, and is used when it is necessary to cover the ground surface, excavated surface, etc. with a sheet material during construction work or for disaster prevention needs. Furthermore, when it is necessary to stretch the sheet material when assembling a tented structure, etc., it is necessary to install the sheet material so that it conforms to the predetermined shape of the ground surface, excavation surface, etc. , it is possible to fix the sheet material to a predetermined location such as the ground simply, quickly and reliably, and without causing any damage to any part of the sheet material (for example, drilling a fixing hole). Regarding a sheet material fixing device.

For example, when it is necessary to cover the ground surface with a sheet material to protect the slope during construction from heavy rain, etc., or to protect the slope within the river during floods, or when it is necessary to cover the ground surface with sheet material, or for tunnels and underground passages. When it is necessary to cover the excavated surface to prevent water leakage and peeling, and when it is necessary to stretch sheet material when assembling a tent structure, etc. When the sheet material is attached to a predetermined shape of the ground surface, excavated surface, etc., the sheet material must be firmly fixed to a predetermined location such as the ground or a frame.

Conventionally, such fixing utilizes fixing holes provided at the peripheral edge of the sheet material, and inserts a wire or string through the hole to an anchor pin driven into a predetermined location such as the ground, or This was done by tying it to a predetermined part of the frame. Particularly, when covering the earth's surface, such as the slope, sandbags have been piled up at necessary areas such as the periphery of the sheet material.

However, in the case of the former fixing method that uses fixing holes, the fixed part of the sheet material is limited to the position of the fixing hole, and therefore external forces are applied to specific parts of the sheet material. Even when external force acts intensively, it is impossible to fix the part finely and distribute the external force evenly.
Furthermore, since the fixed portion is limited, external force always acts only on the fixing holes, and as a result, tears are likely to occur through the holes, shortening the life of the sheet material. In particular, when external forces act intensively as described above, the lifespan is significantly shortened. Note that the hole is usually reinforced with a reinforcing ring, but since excessive force is often applied to the reinforcing ring, the reinforcing ring and the hole are likely to separate, and the reinforcement The ring often did not fulfill its function. Furthermore, since the sheet material had to undergo special processing to form fixing holes, this also led to an increase in the manufacturing cost of the sheet material. Moreover, conventional sheet materials with fixing holes formed in this way,
Since the size of the sheet material has been standardized, it is less convenient to use, and since the sheet material can only be fixed to the peripheral area, it is difficult to use, for example, in a trench dug in the ground (for example, used as a temporary channel). )
Furthermore, even if it is desired to lay a sheet material in accordance with the shape of the groove surface, such a request cannot be met.

In the latter case, where sandbags are used to hold down the sheet material, there are no problems like those mentioned when using holes for fixing, but piling up heavy sandbags is hard work and extremely inefficient. It was bad.

The purpose of the present invention is to provide a sheet material fixing device that can solve these problems at the same time, and one embodiment thereof will be described below with reference to the drawings.

In Figs. 1 to 3, the sheet material fixing device 1 of the present invention is shown.
comprises a first fitted body 2 and a second fitted body 3,
One of these, for example, the first fitted body 2 is attached to a predetermined portion 7 of the covering portion 6 to be covered with the sheet material 5, and the first fitted body 2 and the second fitted body 3 are connected to each other. By sandwiching and fitting the sheet material 5, the sheet material can be fixed to the predetermined portion 7.

The first fitting body 2 has an outer locking piece 10 erected on one side edge 9a of a bottom plate 9 having a rectangular plate shape, which faces inward and slopes upward, and has a space between the outer locking piece 10 and the outer locking piece 10. an inner locking piece that slopes diagonally upward in the opposite direction to the outer locking piece 10 such that the distance between the outer locking piece 10 becomes narrower from one end 11 to the other end 12 of the bottom plate 9; The outer locking piece 10 and the inner locking piece 13 form a dovetail-shaped locking groove 14 whose groove width becomes narrower from one end to the other end.
Further, on the other side edge 9b side of the bottom plate 9, an auxiliary locking piece 16 is erected parallel to the other side edge 9b, leaving an end cavity 15, and inclined diagonally upward toward the outside.
With the auxiliary locking piece 16 and the inner locking piece 13,
An auxiliary locking portion 17 that becomes wider from one end 11 to the other end 12 of the bottom plate 9 is formed together with the locking groove 14 . Note that the end surfaces 10S, 1 on one end side of the outer locking piece 10, the inner locking piece 13, and the auxiliary locking piece 16
3S and 16S are inclined inward.
In addition, through holes 20, 20 are bored at the center of the groove portion 19 of the auxiliary locking portion 17 at intervals.

The second fitting body 3 has an outer engagement piece 23 that can be engaged with the outer engagement piece 10 on the inside thereof, leaving an end cavity 22 on one side edge 21a side of the upper plate 21 having a rectangular plate shape. At the same time, an inner engagement piece 25 that can engage with the inner engagement piece 13 on the inside thereof is provided below at a distance from the outer engagement piece 23, and the outer engagement piece 23
A locking portion 26 that substantially matches the locking groove 14 is formed between the inner engaging piece 25 and the locking groove 14 . Furthermore, the upper plate 21
An auxiliary engagement piece 27 that can engage with the auxiliary engagement piece 16 on the outside thereof is provided on the other side edge 21b, and the auxiliary engagement piece 27 and the inner engagement piece 25
As a result, an auxiliary engagement groove 29 that substantially matches the auxiliary locking piece 17 is formed. In addition, the outer engaging piece 2
3. The other end surfaces 23S, 25S, and 27S of the inner engagement piece 25 and the auxiliary engagement piece 27 are inclined inward. In addition, through holes 32, 32 are bored at the center of the bottom of the groove portion 28 of the locking portion 26 at intervals.

Note that the first fitting body 2 and the second fitting body 3 are fitted into the locking groove 14 and the locking portion 26, and the auxiliary locking groove 29 and the auxiliary locking portion 17, respectively, with the sheet material 5 sandwiched between them. The thickness of the sheet material 5 is adjusted between the locking groove 14 and the locking part 26 and between the auxiliary locking groove 29 and the auxiliary locking part 17 so that the two substantially overlap when they are combined. Provide a gap of about 100 yen.

However, in order to use the sheet material fixing device 1 of the present invention to fix the sheet material 5 to a predetermined portion 7 of the covering portion 6, which is, for example, the slope of a construction site, first the first fitting body 2 is attached to the predetermined portion 7. Attach to. At the time of attachment, as shown in FIG.
The ends of a binding member 31, such as a wire, which is inserted through the through holes 20, 20 formed in the bottom, are bound. Note that the binding member 31 may be wound around the bottom plate 9 in the groove portion 19 without being inserted through the through holes 20 , 20 . Thereafter, the sheet material 5 is spread over the first fitted body 2 attached in this way, and as shown in FIG. As shown in FIG. It can be firmly fixed to a predetermined portion 7 (as shown in FIG. 6). Therefore, the sheet material 5 can be fixed to the slope of the construction not only at the peripheral edge but also at any part thereof, so that the sheet material 5 can be fixed in accordance with the shape of the slope. Moreover, the fixed state can be maintained. Therefore, the slope can be reliably protected from heavy rain, flooding, etc. In addition, each second line installed in a straight line
As shown in FIGS. 2, 3, and 6, the holding rope 33 is inserted into the groove 28 of the locking portion 26 of the fitting bodies 3, 3..., and its end is fixed to the ground, etc. By this, the sheet material 5 can be evenly pressed against the covering part 6 via the pressing rope 33,
The sheet material 5 can be made more stable. Further, as mentioned above, the outer locking piece 10 and the inner locking piece 1 of the first fitting body 2
3. End surfaces 10S and 13 on one end side of the auxiliary locking piece 16
S, 16S, and the outer engaging piece 2 of the second fitting body 3
3. Since the end surfaces 23S, 25S, and 27S on the other end side of the inner engaging piece 25 and the auxiliary engaging piece 27 are formed as inclined surfaces, that is, they are rounded, the fifth
As shown by the dashed line in the figure, the first fitted body 2 and the second fitted body 3 can be smoothly fitted. Further, in this embodiment, the first fitting body 2
is also provided with an auxiliary locking part 17,
Further, since the second fitting body 3 is provided with an auxiliary locking groove 29 that fits into the auxiliary locking portion 17, the sheet material 5 can be inserted only between the locking portion 26 and the locking groove 14. The sheet material 5 is also sandwiched between the auxiliary locking portion 17 and the auxiliary locking groove 29, so that the sheet material 5 can be fixed to the predetermined portion 7 of the covering portion 6 in a more stable state.

Figures 7 and 8 show another embodiment of the sheet material fixing device 1 of the present invention, in which the first fitting body 2 has a substantially trapezoidal plate shape that becomes narrower from one end to the other end. Locking pieces 36, 36 which are inclined inwardly and diagonally downward are provided on both side edges of the upper plate 35 to form a dovetail-shaped locking groove 37 whose groove width becomes narrower from one end to the other end. It becomes. Note that the lower edges of both the locking pieces 36, 36 are bent outward in an arc shape to prevent damage to the sheet material 5. On the other hand, the second fitting body 3 has engaging pieces 40, 40 that engage with each of the locking pieces 36, 36 on the inner side of each of the locking pieces 36, 40 erected on both side edges of the bottom plate 39, which has a substantially trapezoidal plate shape. A locking portion 41 that substantially matches the groove 37 is formed. Note that the base end portion of an anchor bolt 42 is fixed to a substantially central portion of the bottom plate 39.

Therefore, for example, the anchor bolt 42 can be
By driving the second fitting body 3 into the predetermined portion 7 of the covering portion 6 such as an excavated surface of an underground passage, etc.
and the second fitted body 3 attached in this way is covered with a sheet material 5, and the first fitted body 2 and the second fitted body 3 are covered with the sheet material 5. When these are sandwiched and fitted together, the sheet material 5 is fixed to the predetermined portion 7 as shown in FIGS. 8 and 9.
Therefore, it becomes possible to fix the sheet material 5 in accordance with the shape of the excavated surface, and maintain the fixed state. Therefore, leakage and peeling of the excavated surface of tunnels and underground passages can be reliably prevented, and the work of placing concrete lining can be carried out without any hindrance.

The sheet material fixing device 1 of the present invention can be used not only for fixing sheet materials covering the slopes or excavated surfaces described above, but also for fixing the groove surface shape in grooves excavated on the ground surface (for example, used as temporary channels). When laying sheet materials in accordance with It can be widely used for fixing sheet materials, such as when it is necessary to stretch the sheet materials during assembly.

In order to facilitate the fixing of the cover sheet material of the cargo, FIG. 10 shows the first fitting body 2 and the second fitting body 3 configured as shown in FIG. 32, 32 are connected by a connecting string 43, and a locking ring 46 is installed in the middle of the connecting string 43 to be hooked to a locking protrusion 45 protruding from the vehicle body. Indicates smoking.

As mentioned above, the sheet material fixing device of the present invention has the first
a fitted body and a second fitted body, one of which is attached to a predetermined part, and the first fitted body and the second fitted body are fitted by sandwiching the sheet material. As a result of being able to fix the sheet material to the predetermined location, the fixing can be done simply, quickly and reliably, and the sheet material can be fixed to the area where the sheet material is to be attached, such as the ground surface or excavation surface. It becomes possible to mount it in accordance with a predetermined shape. Moreover, when fixing the sheet material, there is no need to provide fixing holes in the sheet material, so even if the sheet material is used for waterproofing, its waterproof properties will not be impaired in any way. .

Also, unlike conventional sheet material fixing methods that utilize fixing holes, the fixing location can be selected arbitrarily, and therefore the number of fixing points can be increased depending on the magnitude of the external force acting on the sheet material. This makes it possible to evenly distribute external forces across the sheet material. In addition, even if the sheet material is used repeatedly, the fixed part can be changed freely each time.
It is possible to prevent damage to the sheet material due to cracks in the fixed part, etc., and extend the life of the sheet material. Furthermore, the sheet material fixing device of the present invention does not care about the size of the sheet material or the presence or absence of fixing holes, so the size is standardized and does not require special processing such as providing fixing holes. It is not necessary to use ready-made sheet materials, and for the various uses mentioned above,
This means that an inexpensive sheet material that has not been subjected to such processing can be used. In the sheet material fixing device of the present invention, the shape of the opposing inner wall surface of the fixing groove of the first fitting body is such that the first fitting body can easily and reliably fit into the second fitting body by sandwiching the sheet material. Set as much as possible. Further, the cross-sectional shape of the locking portion 47 of the second fitting body 3 may be formed into a trapezoidal shape as shown in FIG. It may also be provided on the locking portion 47. Furthermore, the shape of the locking groove 50 of the first fitting body 2 may be formed into a dovetail groove shape as shown in FIG. 12 or a dovetail groove shape as shown in FIG. 13. .
In FIG. 12, 51 is a hole provided in the second fitting body 3 for attachment, and 52 is a hole used for inserting a presser rope.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is a cross-sectional view showing its operation, FIG. 3 is a perspective view showing its usage condition, FIG. 4 is a plan view showing the fitted condition of the first fitting body and the second fitting body, and FIG. 1st
FIG. 6 is a side view showing a state in which the fitted body and the second fitted body are fitted with a sheet material sandwiched between them; FIG. 6 is a plan view showing a state in which the sheet material is fixed using the sheet material fixing device of the present invention; FIG. 7 is a perspective view showing another embodiment of the present invention, FIG. 8 is a cross-sectional view showing its usage state, and FIG.
The figure is a plan view showing the state of use, and Figure 10 is the first
Fig. 11 is a sectional view showing another example of the locking part of the second fitting body, Figs. 12-13 FIG. 3 is a sectional view showing another example of the locking groove of the first fitting body. 1... Sheet material fixture, 2... First fitting body,
3... Second fitted body, 5... Sheet material, 6... Coating portion, 7... Predetermined portion of coating portion, 14, 37, 5
0... Locking groove, 26, 41, 47... Locking portion.

Claims (1)

[Scope of utility model registration request] A sheet material fixing device for fixing a sheet material to a predetermined location, the first fitting body having a dovetail-shaped locking groove whose groove width becomes narrower from one end to the other end; a second fitted body having matching locking portions, either the first fitted body or the second fitted body shall be attached to the predetermined portion, and the first fitted body shall be attached to the predetermined portion; A sheet material fixing tool, characterized in that the sheet material can be fixed to the predetermined portion by fitting the fitted body and the second fitted body while sandwiching the sheet material.