JPH056084Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is a concrete gutter cover, particularly a molding form for a concrete gutter cover, which is equipped with a soundproof buffer member on the side part or the bottom part together with the side part. Regarding.

(Prior Art) Conventionally, this type of molding frame has been disclosed, for example, in Japanese Patent Application No. 82509/1982 by the present applicant. The formwork of the same issue is a formwork in which the surface and bottom parts of the gutter cover are formed in a vertical direction, and many of the same formworks can be piled up in the longitudinal direction to pour concrete. It is.
In each molding frame, a bottom molding plate that molds the side surface of the gutter cover and a partition molding plate that molds the bottom thereof are each formed with mounting means for attaching and fixing the soundproofing buffer member. As an example of this attachment means, the above-mentioned Japanese Patent Application No. 62-82509
FIG. 6 of the same issue shows an example in which a tapered protrusion for fixing the buffer member is provided in a recess formed in a molded plate. That is, a groove having a tapered concave cross section is formed on the surface of the buffer member, and the buffer member is installed and fixed in the recess of the molded plate by fitting the tapered protrusion into the groove. It is something to do.

(Problems to be Solved by the Invention) By the way, in such a conventional formwork, a buffer member was attached in the recess of the bottom molding plate in the following manner. That is, as shown by the arrow in FIG. 6, the buffer member was inserted in a horizontal direction so that the groove of the buffer member was fitted into the protrusion in the recess. However, this mounting structure and method has the following problems. In other words, if there is an appropriate distance between the opened mold frames and sufficient play is secured, it is possible to insert the buffer member from the horizontal direction, but it is possible to insert the buffer member from the horizontal direction. There was a defect that if it was made larger, the formwork would become larger. On the other hand, if the play is cut down to make the formwork more compact,
It became difficult to install the buffer member because it was not possible to insert it horizontally.

In view of the above-mentioned problems of the conventional method, this invention has been developed to create a concrete structure that allows the cushioning member to be easily attached to the bottom molding plate even if there is not enough play between the opened molding frames. The purpose is to provide a molding frame for gutter covers.

(Means for Solving the Problems) The concrete gutter cover forming form according to this invention has the following configuration in order to achieve the above object. That is, this molding frame is provided with a large number of molding frames that move and open the molds so as to widen the distance between them. These molding frames include a movable bottom molding plate, left and right side molding plates rotatably supported on both sides of the bottom molding plate, and fixed to the bottom molding plate to perform each molding. It consists of a partition molded plate that stands to partition the rooms.

On both sides of the inner surface of the bottom molded plate, there is a width in which a soundproofing shock absorbing member having a retaining protrusion buried in the concrete is fitted on the back side, and a depth that is shorter than the thickness thereof. A mounting recess is formed.

Moreover, the mounting recess includes (a) a tapered protrusion that fits into an engagement groove with a tapered cross-section recess provided on the surface of the buffer member, and (b) at least the mounting recess. The present invention is characterized in that a portion located on the entrance side is formed with an engagement protrusion that is a non-tapered protrusion that fits into the engagement groove.

Moreover, the structure is as follows so that a soundproof buffer member can also be attached to the bottom surface of the gutter cover. That is, on both sides of the inner surface of the partition molded plate, there are mounting recesses that have a width that fits into the soundproofing buffer member and a depth that is shorter than the thickness thereof, and that extend in the same direction as the direction in which concrete is poured. form.

In this mounting recess, (a) it is fitted into an engagement groove having a tapered cross-sectional recess shape provided on the surface of the buffer member, and (b) all or part of the engagement groove is a tapered protrusion. An engaging protrusion is formed.

(Function) First, each molding frame is moved so as to widen the mutual interval, and the left and right side molding plates are also opened to open the mold. Using the gap between the molding frames created by opening the mold, extend your hand to the bottom molding plate and attach the soundproofing buffer member to the mounting recesses formed on both sides of the bottom molding plate. At this time, the engagement groove having a tapered cross-sectional concave shape formed on the surface of the buffer member is applied from above to the non-tapered protrusion of the engagement protrusion formed in the mounting concave portion, and the engagement groove is inserted by pressing it as it is. . Thereafter, the entire cushioning member is slid horizontally and pushed into the recess to complete the installation. Further, when an attachment recess is formed in the partition molded plate, the buffer member is applied perpendicularly to the engagement protrusion formed in the recess and is pushed into the recess so as to slide down.

When the attachment of the buffer member is completed, the left and right side molding plates are closed and each molding frame is tightened to form a molding chamber. The reinforcing steel is placed in this molding chamber, and concrete is poured from above. The poured concrete is filled so as to bury a portion of the main body of the buffer member and the retaining ridges provided on the back surface thereof. Once the concrete has hardened, the mold is opened and the product, ie, the concrete gutter cover, is lifted upward and taken out.

(Example) Hereinafter, an example of this invention will be described based on the drawings. 1 in the figure shows the entire molding frame in which each molding frame is tightened during concrete pouring, and is pulled apart to open the mold after completion of molding, so that the hardened molded product can be easily demolded. 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 in conjunction with the movable plate 6 to move and open the molds so as to widen the distance from each other. 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.

Further, each molding frame 2 is formed in a series so that a large number of molding frames 2 are overlapped in the longitudinal direction of the molding frame 1 so that the surface and bottom portions of the gutter cover to be molded are molded in the vertical direction. As clearly shown in FIG. 2, these molding frames 2 consist of a bottom molding plate 9 that moves on rails 4, and a left and right side that stands rotatably supported by shaft supports 10 on both sides of the bottom molding plate 9. It is composed of a side molding plate 11, and a partition molding plate 12 that is fixed to the molding plate 9 and stands 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 molds the side surface of the gutter cover to be molded, specifically, one side surface in which a drainage notch is provided, and the latter molds the side surface of the gutter cover to be molded, and Shape the bottom and top parts of the lid. That is, the latter partition molding plate 12 serves as one partition plate of the molding chamber formed by the molding frame 2, and also serves as the other partition plate of the molding chamber formed by the other adjacent molding frame 2. It's also a board. Therefore, this partition molded plate 12 serves as a molded plate whose inner surface forms the bottom part of the gutter cover.
Further, the outer surface side functions as a molding plate for molding the surface portion.

Attachment recesses 17 and 18 with engaging protrusions 15 and 16 are formed on both sides of the inner surfaces of these molded plates 9 and 12 so that sound-proofing buffer members 13 and 14 can be attached thereto.

The soundproofing buffer members 13 and 14 are both made of soft rubber,
It is usually called a packing made of soft synthetic resin or the like. In the longitudinal direction of the back surface, there is provided a plurality of retaining protrusions W for preventing peeling, which have a tapered cross section that becomes wider toward the tip. In addition, on the surface thereof, there are a plurality of engagement grooves 1 which also extend in the longitudinal direction and have a concave cross section with a tapered shape that narrows toward the entrance.
Equipped with 9. However, in this embodiment, regarding the buffer member 14 attached to the partition molded plate 12, as shown in FIGS. The protrusion length is increasing. In other respects, the buffer members 13 and 14 have exactly the same configuration except for the difference in length.

Mounting recesses 17 and 1 formed in molded plates 9 and 12
8 consists of a width into which the buffer members 13 and 14 are fitted, and a depth which is shorter than the thickness thereof. The mounting recess 17 is formed in a rectangular shape near one corner of both sides of the inner surface of the molded plate 9. Further, the mounting recesses 18 are formed on both sides of the inner surface of the molded plate 12 so as to extend in the vertical direction, that is, in the same direction as the direction in which concrete is poured.

In the mounting recesses 17 and 18, buffer members 13,
A plurality of protrusions 15 and 16 are formed so as to fit into the engagement grooves 19 of 14, each having a protrusion with a tapered cross section that becomes wider toward the tip. Of course, at least the portion of the protrusion 15 located on the entrance side of the recess 17 is a non-tapered protrusion that fits into the engagement groove 19. That is, in this embodiment, two protrusions 15 are formed in the mounting recess 17, and only the outer surface of the distal end thereof is a sloped surface, and the opposing inner surfaces are both vertical surfaces. In addition, it is a non-tapered protrusion. However, the shape of this non-tapered protrusion is not limited to the above-described shape, and for example, the outer surface as well as the inner surface may be formed of vertical surfaces. Further, the number of protrusions 15 is not limited to two,
For example, there may be three articles.

The reason why at least the tip of the protrusion 15 is made into a non-tapered protrusion is as follows. That is, as shown in this embodiment, if the sloped surface inside the tip of the protrusion 15 is cut to form a vertical surface, at least the tip of the protrusion 15 will fit into the engagement groove 1 of the buffer member 13.
9 becomes easy to insert. Therefore, when attaching the buffer member 13, it can be fitted by pressing it from above, as shown by the arrow in FIG. In other words, the installation operation of inserting it in a horizontal direction is no longer necessary. Therefore, the distance between the molding frames 2 when the mold is opened can be narrowed as much as possible, and the play can be cut down to make the molding frame 1 as a whole, especially in its longitudinal direction, compact.

Incidentally, the larger the ratio of the non-tapered protrusion portion to the entire length of the protrusion 15 is, the more the play can be reduced. However, increasing the proportion of the non-tapered protrusions has the disadvantage that the buffer member 13 is not securely fixed.

Further, in this embodiment, the protrusion 16 formed in the recess 18 is configured with a tapered protrusion over the entire length, but in order to allow the buffer member 14 to be inserted smoothly,
Only a part of the protrusion 16 may be formed of a tapered protrusion. Further, the number of protrusions 16 is not limited to two.

The left and right side molding plates 11 stand rotatably supported by shaft supports 10 provided on the side surfaces of the molding plate 9, and when opened, they stand on both sides of the formwork 1. It is supported in an inclined state by a stopper 20 attached to the section.

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 molding frames 2 are moved so as to widen the mutual spacing, and the left and right side molding plates 11 are also opened to open the molds. Next, in order to prevent concrete from adhering, each forming frame 2 is coated with oil for preventing adhesion. Then, the soundproof cushioning members 13, 1 are placed in the mounting recesses 17, 18 of the molded plates 9, 12.
Attach 4 in advance. When installing the buffer members 13 and 14, install them so that their front surfaces are located on the side of the molding plates 9 and 12, that is, so that their back surfaces face toward the back side of the molding frame 2, and their retaining protrusions are W is made to protrude into the molding chamber formed by the molding frame 2. The specific method of attachment is as follows.

First, regarding the buffer member 13, an engagement groove 19 with a concave tapered cross section formed on the surface of the member 13.
is applied from above to the non-tapered protrusion portion of the protrusion 15 formed in the mounting recess 17, and is fitted by pressing it as it is. Thereafter, the entire buffer member 13 is pushed deep into the recess 17 while being slid horizontally.

In addition, regarding the buffer member 14, its engagement groove 1
9 is a protrusion 16 formed in the mounting recess 18.
Apply from the perpendicular direction to the concave part 1.
8 Push it all the way in so that it slides down.

After the buffer members 13 and 14 are attached to each molding frame 2, the left and right side molding plates 11 are closed, and each molding frame 2 is tightened by rotating the threaded rod 5 to form a molding chamber. Then, the reinforcing bars F are placed in this forming chamber, and concrete is poured from above. The poured concrete is filled so as to bury part of the main body of the buffer members 13 and 14 and the retaining ridges W. After that, the poured concrete is compacted using a vibrator or the like. After curing and hardening for a predetermined period of time, the mold is opened and the molded gutter cover is lifted upward to form the buffer members 13,1.
Remove the mold along with 4. The demolded concrete gutter cover C is as shown in FIG. 7, and is integrally provided with buffer members 13 and 14 at both upper corners of the side surface in which the drainage notch is formed and on both sides of the bottom surface.

In addition, in the above embodiment, an example was explained in which this invention was embodied in a screw-driven molding frame.
It is clear that other drive systems, for example clamp-driven forming molds, can also be implemented.

(Effects of the invention) The molding frame according to this invention has the above-mentioned configuration, and has the following effects.

1. In the molding frame of claim 1, even if the molding frame is compactly designed to narrow the distance between the molding frames and cut down the play when the mold is opened, the soundproofing cushioning member is provided in both the recesses formed in the bottom molding plate. can be installed without difficulty. That is, since at least the portion of the engagement protrusion formed in the mounting recess, which is located on the entrance side of the recess, is made into a non-tapered protrusion that is easy to fit into, the protrusion has a tapered cross section. The buffer member can be attached by pushing into the engagement groove from above. Therefore, when attaching the same member, there is no need for the conventional operation of horizontally feeding the member and fitting it together, making the attaching work easier. Moreover, it is no longer necessary to ensure extra play between the molding frames for the above-mentioned operation, and it becomes possible to mold the molding frame as a whole compactly, especially in its longitudinal direction.

2 In the molding frame of claim 2, in order to form not only the bottom molding plate but also the partition molding plate the mounting recesses and protrusions for attaching the soundproofing buffer member, not only the side parts but also the bottom part are formed. A concrete gutter cover including the buffer member can be formed.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a forming frame showing an embodiment of this invention, Fig. 2 is an enlarged perspective view of the forming frame, and Fig. 3 is an enlarged perspective view of the forming frame.
The figure is an enlarged sectional view of the mounting recess and the engagement ridge formed on the bottom molding plate of the molding frame, FIG. 4 is an enlarged sectional view of the mounting recess and the engagement ridge formed on the partition molding plate of the molding frame, Figure 5 is an enlarged perspective view of the soundproofing buffer member attached to the partition forming plate, Figure 6 is an enlarged plan view of the tightened forming frame with reinforcing bars inserted, and Figure 7 is the demolded concrete. It is a perspective view of a gutter cover. 1... Molding frame, 2... Molding frame, 9... Bottom forming plate, 11... Side forming plate, 12... Partition forming plate, 13, 14... Soundproofing buffer member, 15, 16
...Engaging protrusion, 17, 18...Mounting recess, 19
...Engagement groove of the soundproofing buffer member, W...Protrusion for preventing the soundproofing buffering member from slipping out.

Claims (1)

[Claims for Utility Model Registration] 1. The product is equipped with a number of molding frames that open the molds by moving to widen the distance between them, and these molding frames are connected to a movable bottom molding plate and the bottom molding plate. In a molding frame comprising left and right side molding plates rotatably supported on both sides, and a partition molding plate fixed to the bottom molding plate and standing so as to partition each molding chamber from each other, The soundproofing cushioning member, which has retaining ridges buried in the concrete on both sides of the inner surface of the bottom molded plate, is installed on both sides of the bottom molded plate. A recess is formed, and the mounting recess is provided with (a) a tapered protrusion that fits into an engagement groove having a concave cross-section with a tapered cross section provided on the surface of the buffer member, and (b) A molding form for a concrete gutter cover, characterized in that at least a portion located on the entrance side of the attachment recess is formed with an engagement protrusion that is a non-tapered protrusion that fits into the engagement groove. . 2. On both sides of the inner surface of the partition molded plate, a mounting recess is formed, which has a width into which the soundproofing buffer member is fitted and a depth smaller than its thickness, and which extends in the same direction as the direction in which concrete is poured. and (a) fits into the mounting recess in accordance with an engagement groove having a tapered cross-section recess provided on the surface of the buffer member, and (b) has a tapered part, in whole or in part. The molding form for a concrete gutter cover according to claim 1, characterized in that an engaging protrusion is formed as a protrusion.