JPS63247007A - Method of molding concrete side-ditch cover and molding formwork thereof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) This invention is directed to a side IW that covers side gutters constructed on both sides of a road.
tM, and relates to a method for forming a concrete gutter cover that includes a soundproofing buffer member at least at the contact portion with the hook of the gutter, that is, the bottom surface of the cover, and a forming form used in the method.

(Conventional technique @) In recent years, the amount of vehicle traffic has increased rapidly, and on narrow roads, vehicles pass over the side ditches. Therefore, as the vehicle passes by, the gutter cover bounces and generates noise, so gutter covers have come into circulation that have a soundproofing shock absorbing member attached to the contact area with the hook of the gutter, that is, the bottom surface of the cover.

There are two ways to attach soundproofing cushioning materials: one is to attach them to the factory-produced lid using adhesive, etc. in a later process;
Conventionally, there has been a method of integrally attaching the buffer member at the time of pouring concrete in a factory, but the latter method was superior in view of issues such as time and installation strength.

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.

Depending on the need, the buffer member may also be attached to the side surface of the lid that forms the drainage notch. In this case, four parts are formed on the molding plate that forms the lid side part, and the buffer member is fitted into the gate part, and it is supported so as not to fall by clips or other clamping members that are inserted together with the formwork, and after the concrete is poured. The clamping member was promptly removed.

(Problem that the invention seeks to solve, α) The conventional methods described above have the following deficiencies.

1) Because of flat casting, the installation area of the formwork becomes large, and the work area is large, making it unsuitable for molding in large numbers.

2) In 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) Since the hardness of the concrete surface varies depending on whether or not the gravel of the poured concrete is near the surface, it is difficult for the buffer member to remain homogeneous.

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

The object of the present invention is to provide a method for forming a concrete gutter cover and a forming form that can further eliminate various defects than the conventional methods.

(Another Means to Solve the Problem) Therefore, the method for forming a concrete gutter cover according to the present invention consists of the following planting. That is, a molding frame is formed so that the surface and bottom parts of the gutter cover are molded in a vertical direction, and a molding plate that forms the molding frame includes at least an inner surface of the molding plate that molds the bottom part of the gutter lid. , a mounting means is formed to support a portion of the buffer member and attach the buffer member along the plate surface thereof. Then, the buffer member is attached to the attachment means in advance so that the back surface thereof faces inside, and the engagement protrusion for preventing peeling provided on the back surface is inserted into the molding chamber formed by the molding frame. Fix it so that it sticks out so it doesn't fall.

Thereafter, concrete is poured into the molding chamber so as to bury a portion of the buffer member including the engaging convex portion, and when the concrete has hardened, it is removed and molded together with the surface buffer member.

Furthermore, the molding frame for concrete gutter lids according to the present invention is formed such that the surface and bottom portions of the gutter lid are molded in a vertical direction. The inner surface of the molding plate that forms the molding frame and forming at least the bottom part of the gutter cover is provided with a structure that supports a part of the buffer member so as to keep it from falling down while keeping it along the plate surface. It forms a mounting means for mounting and fixing.

(Example) An example of the present invention will be described below with reference to PtSi diagrams to Figure 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 this formwork 1, and on the rails 4 are front and rear movable plates 6 that move in parallel outwardly by the rotation of the front and rear threaded rods 5. , and a large number of molding frames 2 that move in conjunction with the movable plate 6 to open the molds by moving to widen the distance from each other. The movement of each forming frame 2 is controlled by a pipe 7 fixed to the center of the lower end of each frame 2.
It is guided by a fixed rod 8 which passes through it.

Moreover, each molding frame 2 is formed in a series so that a large number of molding frames 2 are overlapped in the thickness direction of the gutter cover so that the surface and bottom parts of the gutter cover to be molded are formed in the vertical direction. As clearly shown in FIG. 2, these molding frames 2 include a bottom molding plate 9 that slides on the rail 4, and left and right side parts that stand pivotally supported by shaft supports 10 on both sides of the bottom molding plate 9. It is composed of a molding plate 11 and a partition molding plate 12 that is fixed to the molding plate 9 and stands so as to partition the molding chambers from each other.

First, the bottom molding plate 9 and the partition molding plate 12 will be explained. The former is a molding plate that molds the side surface of the gutter cover to be molded, specifically, one side surface in which a drainage notch is provided; Is the latter +? η side mm.

This is a molding plate that molds the bottom part of the. 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 buffer member 13 is made of soft rubber, soft synthetic resin, etc., and as shown in Fig. 3, it has a retaining convex part for preventing peeling, which has a tapered side surface that widens in the longitudinal direction of the back surface toward the tip. W, and the surface portion is also provided with a hemispherical recess 15 extending in the longitudinal direction. Both sides of the main body of the member 13 have tapered side surfaces 16 that become wider toward the surface portion. In addition, 1iiJ hemispherical four parts 15
The grooves function as relief grooves that trap sand, debris, etc. that settle between the buffer member 13 and the edge of the side gutter.

On the other hand, attachment means 14 formed on the inner surfaces of the molded plates 9 and 12
can be attached so as to support a part of the buffer member 13 and run along the plate surface thereof. In this embodiment, the opening has a width that fits the buffer member 13 and a depth that is shorter than its thickness, and the opening is narrower from the inside so as to correspond to the tapered side surface 16 of the buffer member 13. It has a tapered recess that can support both sides of the buffer member 16. Although the four parts of the molded plate 12 are formed to extend from end to end in the vertical direction at both ends of the molded plate 12, the four parts are not limited to this, and for example, the molded plate 12
It is also possible to form only the four corners or the required number of pieces. Further, in the molded plate 9 as well, the four parts may be formed so as to extend from end to end at both end portions thereof. By means of these attachment means 14, the buffer member 13 attached to the molded plate 12 is fixed to its inner surface and will not fall inward, and the buffer member 13 attached to the molded plate 9 can be fixed even if concrete is poured. Even if there is a shock, it will be fixed without shifting due to the impact.

Further, the left and right side molding plates 11 stand tiltably supported by shaft supports 10 provided on the side surfaces of the molding plate 9, and when the mold is opened, the left and right side molding plates 11 stand on both sides of the molding frame 1. It is supported in an inclined state by a stopper 17 attached to.

As can be inferred from FIG. 2, when each molding frame 2 is tightened, each partition molding plate 12 of the same molding frame 2
lf1 functions as one partition frame of the molding frame 2, and also functions as one partition frame of the other adjacent molding frame 2, forming a molding chamber in each 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.

Then, a soundproof buffer member 13 is attached in advance to the attachment means 14 of the molded plate 9° 12. When attaching the m* 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 toward the inside of 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 are fixed so that they do not shift or fall.

At this time, the vL impact member 3 is attached as closely as possible to the plate surface so that no gap is formed between the surface part of the buffer member 13 and the four parts that are 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 form a molding chamber by pulling out each molding frame 2 from the left and right sides. 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 the concrete has hardened, the screw frame 5 is rotated again to open each molding frame 2, and the molded gutter cover is removed from the mold together with the buffer member 13. The demolded gutter cover is fjS
As shown in Fig. 4, loose Wi members 13 are integrally attached to both sides of the bottom part and above the side part where the drainage notch 18 is formed, so as to protrude slightly from each concrete surface.

5-7 show other embodiments. That is, the surface of the ffl cylinder member 13 is formed with four tapered portions 19 whose side surfaces become narrower toward the closed portion in the direction of the force.

On the other hand, the inner surface of the molded plate 9 (12) is formed with four parts 20 having a width into which the IFC street member 13 fits and a depth shorter than the thickness thereof. And this part 20
Attachment means 14 are formed therein. the attachment means 14 fit exactly into the four parts 19 formed on the buffer member 13;
This is a tapered convex portion that widens toward the tip, and the buffer member 13 can be fixed by fitting into the convex portion. The convex portions may be arranged only at two locations on both ends of the four parts 20, but if they are provided at three or more locations in the center as shown, the cushioning member 13 will not float inside and will be stable.

If necessary, the side surfaces of the four parts 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 Figure i7, the four parts 20 may not be formed, and only the convex part, which is the attachment means 14, may be formed so as to protrude from the inner surface of the molded plate 9 (12). However, if the gutter cover is formed according to this example, the buffer member 13 will be buried in the concrete leaving only its surface portion, but the width of the buffer member 13 will be the width of the contacting gutter hook. If it is formed larger than the width, there will be fewer problems.

Furthermore, FIG. 8 also shows another embodiment.

The attachment means 14 in this example are a plurality of left and right stop members fixedly fixed to the inner surface of the molded plate 12 (9), and are positioned at a distance that allows the buffer member 13 to fit thereinto, and whose bent ends Both sides of the buffer member 13 are supported and fixed.

This invention is not limited to the embodiments described above, but can also be implemented in the following forms.

1) In the above embodiment, a method was explained in which concrete is cast in the length direction of the gA gutter cover, a so-called vertical casting method, but it may also be formed by a horizontal casting method, in which concrete is cast in the r1 direction of the gutter cover. .

In this case, the partition molding plate 12 forming each molding frame 2 has attachment means 1 extending laterally at its upper and lower ends.
It is necessary to form 4. Furthermore, instead of the bottom molded plate 9, it is necessary to form on one side molded plate 11 an attachment means 14 for attaching the buffer member 13 for the lid side surface.

2) Furthermore, in the first embodiment, the side shapes of the four parts corresponding to the attachment means 14 are illustrated as tapered shapes that become narrower toward the closed part so as to correspond to the tapered surfaces 16 of the buffer member 13, but the present invention is limited to this shape. It's not a thing.

In short, it is sufficient that the opening has a narrow shape so that it can support and fix a part of the buffer member 13. For example, the side surface may have an arcuate cross section to match the side shape of the buffer member. That's not to say there isn't.

3) Furthermore, when the buffer member 13 is attached to the four parts corresponding to the attachment means 14, the member 13 tends to warp in a mountain shape and a gap is formed between its surface part and the plate surface of the four parts. In some cases, the member 13 is formed in a reversely warped shape so that the surface side protrudes, so that the warp can be suppressed.

4) Furthermore, in the above embodiments, an example in which the present invention is applied to a screw-driven multi-cavity type concrete formwork has been described, but it is clear that the invention can also be applied to a clamp-driven formwork. Also, it is not necessarily limited to taking a large number of g
In extreme cases, it is also possible to apply the method to a single-cavity formwork.1 The same effect can be expected if a large number of single-cavity formworks implementing the present invention are lined up in contact with each other and concrete is poured. .

5) Furthermore, in the molding frame 2 described in this embodiment, attachment means 14 are also formed on the bottom molding plate 9. however,
The side gutter cover does not necessarily have to be provided with the cylindrical member 13 on its side surface. Therefore, the molding frame 2 has a molding plate for molding at least the bottom part of the gutter cover.
It is sufficient that a means for attaching the buffer member 13 is provided.

(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) The surface and bottom parts of the gutter cover are molded vertically, that is, the molding frames can be stacked in the thickness direction of the gutter cover and concrete can be poured, compared to the conventional flat pouring method. The installation area of the formwork for each molded product is small, and a large number of molded products can be efficiently manufactured and nailed even in a small workshop. 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) The mounting means formed on the molded plate allows concrete to be poured with the buffer member always fixed in place, so there is no shifting of the buffer member on the concrete surface (and, moreover, the buffer member is securely placed in a horizontal position). Components can be attached.

3) To regulate the thickness direction of the molded product using the molded plate,
The surface and bottom portions can be reliably formed into horizontal planes, and errors in thickness can be eliminated.

4) As shown in the Pt51 example, if the mounting means is formed by four parts having a depth shorter than the thickness of the buffer member, the Pt41 shock member can be reliably and uniformly protruded from the concrete surface of the molded product. It is possible to form gutter covers with great soundproofing effects.

5) If a mold structure is adopted in which a large number of mold frames are formed in series so as to overlap in the thickness direction of the molded product, one partition mold plate can also be used as a partition frame for adjacent mold frames, and the overall formwork type is cheaper.

[Brief explanation of the drawing]

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. FIG. 4 is a perspective view of a gutter cover formed by the mold. fjSS diagram is a perspective view of the tl and cylindrical member used in other embodiments, FIGS. 6 and Vt5T are sectional views showing other examples of attachment means for attaching the loose wf1 member, and FIG. It is a perspective view showing an example. 2... Forming frame 9... Bottom forming plate 11... Side forming plate 12... Partition forming plate 13... VL impact member 14... Attachment means W... Engagement Convex Patent Applicant: Censored Concrete Industry Co., Ltd. Representative: Patent Attorney: Hikaru Hirose
Tsukasa number 5! ! 1 W 116 Figure II 7 Figure 811B Procedural Amendment (Kobo)

Claims (1)

[Claims] 1) In a method of forming a concrete gutter cover having a soundproof buffer member on at least the bottom part, the forming frame is arranged so that the surface part and the bottom part of the gutter cover are formed in a vertical direction. At the same time, the buffer member is attached to the inner surface of a molding plate that forms the molding frame and forms at least the bottom part of the gutter cover so as to support a part of the buffer member and run along the plate surface. An attachment means is formed, and the buffer member is attached to the attachment means in advance so that the back side thereof faces inside, and an engagement protrusion for preventing peeling provided on the back side is formed by the molded frame. After that, concrete is poured so as to bury a part of the buffer member including the engaging convex part in the molding chamber, and the concrete is hardened. After that, the concrete gutter cover is removed from the mold together with the buffer member. 2) In a forming frame for forming a concrete gutter cover that is equipped with a soundproofing buffer member on at least the bottom part, the forming frame is formed so that the surface and bottom parts of the gutter cover are formed in a vertical direction, and A part of the buffer member is supported on the inner surface of the molding plate that forms the molding frame and forms at least the bottom part of the gutter cover, so that the buffer member is attached and fixed so as to lie along the plate surface and not fall down. Formwork for concrete gutter covers forming the attachment means. 3) In the molding plate forming the molding frame, mounting means for attaching and fixing the buffer member is also formed on the inner surface of the molding plate forming the side surface portion of the gutter cover. Formwork for forming concrete gutter covers as described in . 4) The attachment means is a recess provided on the inner surface of the molded plate, and has a width in which the buffer member fits, and a depth shorter than the thickness of the recess, and has a tapered side surface that becomes narrower toward the closed part. The molding frame for a concrete gutter cover according to claim 2 or 3, which is adapted to support and fix both sides of the buffer member. 5) The attachment means is a convex portion provided on the inner surface of the molded plate, and has a tapered shape that becomes wider toward the tip, so that it fits exactly into the tapered recess formed on the surface of the buffer member and fixes the member. The second claim that is
A molding form for a concrete gutter cover according to item 3 or item 3. 6) The attachment means is a plurality of left and right stop members fixedly fixed to the inner surface of the molded plate, and are positioned at a distance that allows the buffer member to fit thereinto, so that both sides thereof can be supported and fixed. A molding form for a concrete gutter cover according to claim 2 or 3. 7) The molding frames are formed in a series so as to be stacked in large numbers in the thickness direction of the gutter cover to be molded, and are opened so as to widen the distance from each other in conjunction with the movement of the front and rear movable plates,
In addition, these molding frames include a bottom molding plate, left and right side molding plates that are pivotally supported on both sides of the bottom molding plate, and a left and right side molding plate that is fixed to the bottom molding plate and stands as a partition between each molding chamber. The molding frame for a concrete gutter cover according to claim 2, which is formed by a partition molding plate.