JPH0346287B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention is a gutter cover that covers a gutter constructed on both sides of a road, and includes a gutter cover that covers at least the contact portion with the hook of the gutter, that is, the bottom surface of the cover. The present invention relates to a method of forming a concrete gutter cover equipped with a soundproofing buffer member and a forming form used in the method.

(Prior Art) In recent years, the amount of vehicle traffic has increased rapidly, and when roads are narrow, vehicles pass over the side ditches. Therefore, as the vehicle passes, the gutter cover bounces and generates noise, so gutter covers have come into circulation that have a soundproofing buffer attached to the bottom of the cover, which is the contact area with the hook of the gutter. .

Conventionally, there are two methods for attaching soundproofing shock absorbers: one is to attach them to the factory-produced lid with adhesive in a later process, and the other is to attach the shock absorbers integrally at the factory when pouring concrete. However, considering issues such as labor and installation strength, the latter method was superior.

However, even with the latter method, the concrete method was to pour concrete flat against the formwork. That is, after forming the mold, concrete is poured to the thickness of the gutter cover, and the top surface is finished with a trowel. After that, the buffer member is pushed into the surface of the poured concrete with the back side with the engagement convex part for preventing peeling facing down, and is again troweled and removed from the mold after the concrete hardens. It was a method. If necessary, the buffer member may also be attached to the side surface of the lid that forms the drainage notch. In this case, a recess is formed in the molding plate used to form the lid side part, the buffer member is fitted into the recess, and the material is supported so as not to fall by clips or other clamping members that are inserted together with the formwork. The clamping member was removed immediately after injection.

(Problems to be Solved by the Invention) The conventional methods described above have the following deficiencies.

(1) The installation area of the formwork becomes larger due to flat casting.
The work area is large and is not suitable for large quantities.

(2) With the flat pouring method, concrete must be poured little by little to the thickness of the gutter cover, making the work difficult, time-consuming, and inefficient.

(3) The hardness of the concrete surface varies depending on whether or not the gravel of the poured concrete is near the surface, making it difficult for the buffer member to remain in a horizontal state.

(4) Since the area to be finished with a trowel was wide, it took a lot of time and required a large number of workers.

This invention can eliminate various defects beyond those of the conventional methods, and also allows the cushioning member to be easily removed from the mold and taken out while being firmly fixed to the molded product when the molded product is removed from the mold. The object of the present invention is to provide a method for forming concrete gutter covers and a forming form.

(Means for Solving the Problems) Therefore, the method for forming a concrete gutter cover according to the present invention has the following configuration. That is, the forming form into which concrete is poured includes a large number of forming frames. These molding frames are open on the upper side,
In addition, the surface and bottom portions of the gutter cover can be formed in the vertical direction. In the molded plates constituting these molded frames, attachment means for attaching the buffer member are formed so as to extend vertically on both sides of the inner surface of at least the partition molded plate forming the bottom part of the gutter cover. ing. Through the attachment means, the buffer member is positioned along the partition molding plate in parallel to the demolding direction of the concrete, and the engagement protrusion provided on the back surface of the buffer member is connected to the It is attached and fixed so as to protrude into the inside of the molding chamber formed by the molding frame.
Thereafter, concrete is poured into the molding chamber so as to bury a part of the buffer member including the engaging protrusion, and when the concrete has hardened after curing, the molding frame is opened and the hardened concrete is poured into the molding chamber. , and remove it from the mold together with the buffer member by pulling it upward.

Further, the molding frame for a concrete gutter cover according to the present invention includes a large number of molding frames that are opened by moving to widen the intervals, and the upper side of these molding frames is open, and
The surface and bottom portions of the gutter cover are formed in a vertical direction. In addition, among the molding plates constituting these molding frames, on both sides of the inner surface of the partition molding plate that forms at least the bottom part of the gutter cover,
Attachment means for attaching the damping member are formed to extend vertically. Through the attachment means, the buffer member is positioned parallel to the concrete demolding direction along the partition forming plate, and the engaging convex portion provided on the back side of the buffer member is connected to the forming plate. It can be attached and fixed so as to protrude into the molding chamber formed by the frame.

(Example) Hereinafter, an example of the present invention will be described based on FIGS. 1 to 4. 1 in the figure shows the entire multi-cavity type concrete formwork, in which each molding frame 2 is tightened during concrete pouring, and then pulled apart to open the mold after the molding is completed, allowing the hardened molded product to be easily demolded. show. That is, left and right rails 4 are provided on the base 3 of the formwork 1, and on the rails 4, front and rear movable plates 6, which are moved in parallel outwardly by rotation of the front and rear threaded rods 5, are provided. A large number of molding frames 2 are mounted which are moved in conjunction with the movable plate 6 to widen the intervals and open the molds.
The movement of each molding frame 2 is guided by a fixing rod 8 that passes through a pipe 7 fixed to the center of the lower end of each molding frame 2.

Moreover, each molding frame 2 is open at the upper side, and is stacked in a series in large numbers in the thickness direction of the gutter cover so that the surface and bottom parts of the gutter cover to be formed are formed in the vertical direction. It is formed. As clearly shown in FIG. 2, these molding frames 2 are
A bottom molding plate 9 that slides on the rail 4, left and right side molding plates 11 that stand pivotally supported by shaft supports 10 on the volume sides of the bottom molding plate 9, and each molding plate that is fixed to the molding plate 9. It is composed of a partition molded plate 12 that stands to partition the rooms.

First, to explain the bottom molding plate 9 and the partition molding plate 12, the former is the side surface of the gutter cover to be molded,
Specifically, this is a molded plate that molds one side surface portion in which a drainage notch is provided, and the latter is a molded plate that molds the bottom surface portion of the gutter cover. Attachment means 14 for attaching a soundproofing buffer member 13 are formed at both ends of the inner surfaces of these molded plates 9 and 12.

The soundproofing cushioning member 13 is made of soft rubber, soft synthetic resin, etc. and is commonly called a packing, and as shown in Fig. 3, it has a tapered cross section that widens toward the tip in the longitudinal direction of the back surface. , a plurality of engaging convex portions W for preventing peeling are provided. Further, the surface portion thereof is provided with a plurality of hemispherical recesses 15 that similarly extend in the longitudinal direction. And member 1
3 Both sides of the main body have tapered side surfaces 1 that widen toward the surface.
6. Note that the hemispherical recess 15
The grooves function as relief grooves that trap sand, dust, etc. that accumulate between the buffer member 13 and the hook of the side gutter.

On the other hand, the attachment means 14 formed on the inner surfaces of the molded plates 9 and 12 can support a part of the buffer member 13 and be attached along the plate surface. In this embodiment, the buffer member 13 has a width that fits in the buffer member 13, and a depth that is smaller than its thickness, and the opening is narrower than the inside so as to correspond to the tapered side surface 16 of the buffer member 13. Furthermore, it is a tapered recessed portion that can support both sides of the buffer member 16. However, the attachment means 14 formed in the molded plate 12, that is, the tapered recess thereof, is formed on both sides of the inner surface of the molded plate 12 so as to extend end to end in the vertical direction. As clearly shown in FIG. 2, by dropping the buffer member 13 into the tapered recess, which is the attachment means 14, from above, it can be aligned perpendicularly to the inner surface of the partition molded plate 12. Therefore, the buffer member 13 is located parallel to the demolding direction of the concrete, and the engagement protrusion W provided on the back surface of the buffer member 13 for preventing peeling is located inside the molding chamber formed by the molding frame 2. It is attached and fixed so that it protrudes towards the end. Also, in the molded plate 9, in the tapered recess that is the attachment means 14,
The buffer member 13 is inserted from the horizontal direction, and is attached and fixed so that its engaging protrusion W protrudes into the inside of the molding chamber. The attachment means 14 formed on the molded plate 9 may also be formed so as to extend from end to end on both sides of the inner surface of the molded plate 9. By these attachment means 14, the buffer member 13 attached to the molded plate 12 is fixed to the inner surface thereof and does not fall inward, and the buffer member 13 attached to the molded plate 9 is
Even if concrete is poured, it will remain in place without shifting due to the impact.

Further, the left and right side molding plates 11 are the molding plates 9
The mold frame 1 is tiltably supported on both sides by shaft supports 10 provided on the side surfaces thereof, and is supported in an inclined state by stoppers 17 attached to both sides of the formwork 1 when the mold is opened. .

As can be inferred from FIG. 2, when each molding frame 2 is tightened, each partition molding plate 12 of the molding frame 2 is closed to the molding chamber formed by the molding frame 2. It functions as one partition frame, and also functions as the other partition frame of the molding chamber formed by the other adjacent molding frame 2.

Next, a method of forming a concrete gutter cover using this formwork 1 will be explained.

First, by rotating the front and rear threaded rods 5 in one direction, the front and rear movable plates 6 are moved in parallel to the outside, respectively, and each molding frame 2 is opened. Then, oil is applied to the inside of each forming frame 2 to prevent concrete from adhering. And the forming plate 9,
A soundproof buffer member 13 is attached to the mounting means 14 of 12.
Attach it in advance. When attaching the buffer member 13, attach it so that its front side is located on the molding plates 9 and 12 side, that is, so that its back side faces inside the molding frame 2, and its engaging protrusion W is They are made to protrude into the inside of the molding chamber formed by the molding frame 2, and each is fixed so as not to shift or fall. At this time, the buffer member 13 is attached so as to follow the plate surface as much as possible so that no gap is formed between the surface portion of the buffer member 13 and the recess that is the attachment means 14. This is because if the gap is formed, there is a risk that the cement paste will wrap around the surface of the buffer member 13 during concrete pouring, and the paste will harden and adhere.

After the buffer member 13 is attached to each molding frame 2, the front and rear threaded rods 5 are again rotated in the other direction to tighten each molding frame 2 from the left and right sides to form a molding chamber. Then, reinforcing steel is inserted into this molding chamber and concrete is poured. The poured concrete is filled so as to bury a portion of the buffer member 13 including the engagement protrusion W.
After that, the poured concrete is compacted using a vibrator or the like.

When curing is finished and the concrete has hardened, the threaded rod 5 is rotated again, the left and right side molding plates 11 are also brought down, and each molding frame 2 is opened. Then, the molded concrete products are
By removing the mold together with the buffer member 13 by pulling it upward, a large number of concrete gutter covers with the buffer member 13 can be obtained at the same time.

As mentioned above, at least the buffer member 13 attached to the molding plate 12 is attached so as to be located parallel to the direction of demolding of concrete, and therefore, the frictional resistance during demolding is small and the molding plate 12 can be easily removed. It deviates from the The demolded concrete gutter cover is as shown in Figure 4, and is fixed to both sides of the bottom and above the side surface where the drainage notch 18 is formed, so as to protrude slightly from each concrete surface. A buffer member 13 is integrally provided.

Next, FIGS. 5 to 7 show other embodiments. That is, on the surface of the buffer member 13, a recess 19 is formed that extends in the longitudinal direction and has a tapered cross section that narrows toward the opening. On the other hand, a recess 20 is formed on the inner surface of the molded plates 9 and 12, and has a width into which the buffer member 13 is fit, and a depth smaller than the thickness of the recess. The attachment means 14 is then formed within this recess 20. However, regarding the recess 20 and the attachment means 14 formed in the molded plate 12,
It is formed to extend vertically on both sides of the inner surface of the molded plate 12. The attachment means 14 is fitted into the recess 19 formed in the buffer member 13.
This is a convex portion with a tapered cross section that widens toward the tip, and the buffer member 13 can be fixed by fitting into the convex portion. These protrusions may be arranged only at two locations on both sides of the recess 20, but if three or more protrusions are also provided in the center as shown in the figure, the cushioning member 13 will not float inside and will be stable. Further, if necessary, the side surfaces of the recess 20 may be tapered to become narrower toward the opening, and the side surfaces of the buffer member 13 may also be tapered to strengthen the fixation.

Of course, as shown in FIG.
12 may be formed so as to protrude from the inner surface. However, when a gutter cover is formed in accordance with this example, the buffer member 13 will be buried in the concrete leaving only its surface portion; If you make it larger than the width of the hook, there will be fewer problems.

This invention is not limited to the embodiments described above,
Implementation is also possible in the following forms.

Furthermore, in the first embodiment, the shape of the side surface of the recess corresponding to the attachment means 14 is changed to the shape of the tapered surface of the buffer member 13.
6, the opening is shown in a tapered shape that becomes narrower toward the opening, but the shape is not limited to this. In short, the opening becomes narrower and the buffer member 13
Any shape that can support and fix a part of the buffer member is sufficient; for example, the side surface may have an arcuate cross section to match the side shape of the buffer member.

Furthermore, when the buffer member 13 is attached to the recess corresponding to the attachment means 14, the member 13 tends to warp in a mountain shape and a gap is formed between its surface and the plate surface of the recess. In order to suppress the warpage, the member 13 is formed in a reversely warped shape so that the surface side protrudes.

Further, in the above embodiment, an example in which the present invention is applied to a screw-driven multi-cavity type concrete formwork has been described, but it can also be implemented to a clamp-driven formwork.

Furthermore, the molding frame 2 described in this embodiment also has attachment means 14 formed on the bottom molding plate 9. However, the gutter cover does not necessarily need to be provided with the buffer member 13 on its side surface. Therefore, it is sufficient that the molding frame 2 has a means for attaching the buffer member 13 to at least a molding plate for molding the bottom surface of the gutter cover.

(Effects of the Invention) According to the concrete gutter cover forming method and molding frame thereof according to the present invention detailed above, the following effects can be obtained.

(1) Compared to the conventional flat pouring method, the surface and bottom of the gutter cover can be formed vertically, that is, the forming frames can be stacked in the thickness direction of the gutter cover and concrete can be poured. The installation area of the mold for each molded product is small, and a large number of molded products can be efficiently manufactured even in a small work area. In addition, the work of pouring concrete becomes easier and requires less effort, and the work can be carried out by a small number of people since there are fewer parts to be finished with trowels.

(2) By means of attachment means formed on the partition molded plate,
Since concrete can be poured with the buffer member always fixed in a fixed position, the buffer member can be reliably installed in a horizontal state without shifting from the concrete surface.

(3) Furthermore, since the mounting means is formed to extend vertically on both sides of the inner surface of the partition molding plate that forms the bottom surface of the gutter cover, the buffer member can be partitioned and molded via this mounting means. It can be installed parallel to the concrete demolding direction along the board. Therefore, when removing the concrete from the mold, there is little frictional resistance when the buffer member comes off from the forming plate, so demolding work can be carried out smoothly, and the buffer member removed from the forming plate is
It is taken out while being firmly fixed to the concrete product side.

(4) Furthermore, since the thickness direction of the molded product is regulated by the molded plate, the surface and bottom parts can be reliably formed as horizontal surfaces, and errors in thickness dimensions can be eliminated. I can do it.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an embodiment of a forming frame used in the method of forming concrete gutter covers according to the present invention, Fig. 2 is an enlarged perspective view of the forming frame, and Fig. 3 is a soundproofing frame attached to the forming frame. A perspective view of a buffer member of
FIG. 4 is a perspective view of a gutter cover formed by the mold. FIG. 5 is a perspective view of a buffer member used in another embodiment, and FIGS. 6 and 7 are sectional views showing other examples of attachment means for attaching the buffer member. 2... Forming frame, 9... Bottom forming plate, 11... Side forming plate, 12... Partition forming plate, 13... Buffer member, 14... Attachment means, 16... Tapered side surface,
19... Taper recess, W... Engagement protrusion.

Claims (1)

[Scope of Claims] 1. In a molding method for forming a concrete gutter cover having a soundproofing buffer member 13 on at least the bottom portion, the forming form into which concrete is poured is open on the upper side, and the surface of the gutter cover is The molding plate comprising a large number of molding frames 2 whose top and bottom parts are vertically molded, and forming these molding frames 2,
Attachment means 14 for attaching the buffer member 13 are formed to extend vertically on both sides of the inner surface of the partition forming plate 12 that forms at least the bottom surface of the gutter cover, and through the attachment means 14, The buffer member 1
3 is positioned along the partition forming plate 12 in parallel to the demolding direction of the concrete, and
Engagement convex portion W provided on the back surface of the buffer member 13
is attached and fixed so as to protrude into the molding chamber formed by the molding frame 2, and then a part of the buffer member 13 including the engaging protrusion W is buried in the molding chamber. Concrete is poured into the concrete, and when curing is completed and the concrete has hardened, the forming frame 2 is opened, and the hardened concrete is pulled upward and removed from the mold together with the buffer member 13. Forming of concrete gutter cover. Law. 2. A molding frame for forming a concrete gutter cover, which is provided with a soundproofing buffer member 13 at least on the bottom part, is provided with a large number of molding frames 2 that open the mold by moving to widen the intervals, and these molding frames 2 are open on the upper side, and are formed so that the surface and bottom parts of the gutter cover are molded in the vertical direction, and the molding plates constituting these molding frames 2 have at least the Attachment means 14 for attaching the buffer member 13 are formed to extend vertically on both sides of the inner surface of the partition forming plate 12 that forms the bottom surface of the gutter cover. Part 1
3 is positioned along the partition forming plate 12 in parallel to the demolding direction of the concrete, and
A mold for a concrete gutter cover, which can be attached and fixed such that the engagement protrusion W provided on the back side of the buffer member 13 protrudes into the molding chamber formed by the molding frame 2. frame. 3 Among the molding plates that form the molding frame 2, a bottom molding plate 9 that molds one side surface of the gutter cover.
3. The molding form for a concrete gutter cover according to claim 2, wherein attachment means 14 for attaching and fixing the buffer member 13 are formed on both sides of the inner surface of the concrete gutter cover. 4. The mounting means 14 is a recess having a width into which the buffer member 13 is fitted and a depth smaller than the thickness thereof, and the mounting means 14 is a recess with a width smaller than the thickness of the recess, and a recess toward the opening side so as to correspond to the tapered side surface 16 of the buffer member 13. The molding form for a concrete gutter cover according to claim 2 or 3, which has a narrowing tapered concave portion. 5. The attachment means 14 is a tapered convex portion that widens toward the tip, and is adapted to fit into a tapered recess 19 formed on the surface of the buffer member 13. The molding form for the concrete gutter cover described in paragraph 3.