JP4160684B2 - Die mold holding device for drain - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drain die holding device for holding a die for forming a drainage groove having a predetermined shape on a drain main body such as a roof drain together with the drain main body before placing concrete.
[0002]
[Prior art]
In order to form a drainage groove having a predetermined shape on a drain body such as a roof drain, a punching die is provided on the drain body, and concrete is placed around the drain body and the punching die. In this construction, a drain punch body holding device for holding the drain body and the punch body on the concrete receiving plate is used so that the drain body and the punch body are not moved by the concrete driving pressure.
[0003]
As the die body of this drain die body holding device, those made of foamed polystyrene as disclosed in JP-A-8-13718 and those made of urethane foam rubber are generally used at present. After the cast concrete has hardened, the punched mold is made by punching the punch with an appropriate tool such as a bar, and pulling up the punch by placing the hand in the hole. It can be easily removed.
[0004]
On the other hand, as shown in FIG. 8, the drain die holding device using the urethane foam rubber die has a lower end of a screw rod c made of a bolt inserted into a concrete receiving plate a fixed with a nut b. The screw rod c is erected on the receiving plate a, and is engaged with a screw thread d formed on the peripheral surface of the screw rod c to provide the operating body e to be movable in the vertical direction. A through hole g for loosely inserting the operating body e is formed, and a support rod h is formed on the lower edge of the operating body e, and the operating body e is fitted into the through hole g of the punching die body f from below. Thus, the die body f is supported by the support rod h. The operating body e can be moved up and down with respect to the screw rod c by the turning operation of the operating portion i protruding from the upper part of the operating body e. The clamping member f is sandwiched and supported by the holding member j disposed at the upper portion and the lower support rod h, and after the concrete has hardened, the retaining member j is removed, and the operating body e is rotated. Accordingly, the die body f can be raised and separated from the concrete p.
[0005]
[Problems to be solved by the invention]
In the drain punch body holding device having the above-described configuration, the punch body f is made of urethane foam rubber, so that it can be used for a plurality of constructions. Further, the detachment operation of the punching die f is performed by rotating the operating portion i of the operating body e with a tool such as a spanner, so that the operating body e screwed with the screw rod c is screwed. Therefore, there is a problem that it takes time to perform the die-cutting operation.
[0006]
On the other hand, as described above, the punching die made of Styrofoam can quickly perform the punching operation by making a hole with a bar or the like and pulling the punching die by placing the hand in the hole. However, since the punching die is destroyed, there is a problem that it can be used only once and cannot be used repeatedly.
[0007]
Furthermore, in recent years, the momentum for effective use of resources has increased, and development of recyclable products has been promoted in various industries. However, both conventional foamed polystyrene and foamed urethane rubber punches have been used after use. There is a problem that it is disposed as garbage and lacks recyclability.
[0008]
In addition, the conventional dies made of foamed polystyrene or foamed urethane rubber have a problem of being bulky and taking up space for transportation and storage.
[0009]
An object of the present invention is to provide a drain-type body holding device for drain which can solve such a conventional problem.
[0010]
[Means for Solving the Problems]
The present invention provides a support rod standing on the receiving plate so as to coincide with the center of the drain main body held on the receiving plate, and a through hole in the thickness direction that is mounted on the drain main body and through which the supporting rod is inserted A punching die body in which a hole is formed, and a protruding portion of a support rod that is inserted through the through-hole and protrudes upward from the punching die body, is detachably mounted, abuts on the upper surface of the punching die body, and has a height In a drain die holding device having a holding means for holding a position, the die die is attached to a substantially deep dish-shaped die main body made of a metal plate, and the upper opening of the die main body. The lid body is made of a metal plate to be shielded, and two locking portions are provided at positions different from each other by 180 ° centering on the through hole on the die body of the die body. Further, the two engaging portions are provided on the bottom surface portion of the mold body, and the engaging end portion is A rectangular engagement hole through which a tool for detachment operation having a substantially T-shaped lower end projecting sideways can be inserted from above, and projecting downward at both left and right positions of the engagement hole. A drain die holding apparatus comprising a plurality of restricting protrusions for restricting engagement end portions of a tool that is inserted and rotated 90 degrees .
[0011]
As described above, according to the present invention, the die body of the punching die body is provided with a locking portion with which a tool for detachment operation from the hardened concrete is engaged .
[0012]
In such a configuration, since the mold body and the lid are formed of a metal plate, the punching mold has strength and can be used multiple times. Further, since it is made of metal, it can be recycled, and moreover, since a plurality of them can be stacked, it is not bulky and does not take up space during transportation and storage. Further, since the tool can be engaged with the engaging portion of the mold main body and pulled upward, the detachment operation from the hardened concrete can be easily performed.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
1 to 3 show an embodiment of a drain punch holding device according to the present invention.
[0014]
Here, the drain main body 1 includes a tray portion 2 and a drain pipe portion 3 protruding downward from the bottom surface of the tray portion 2. The drain main body 1 is supported on the receiving plate 4 with a cylindrical spacer 5 interposed between the lower peripheral surface of the drain pipe portion 3 and the receiving plate 4. Before the concrete 6 is placed on the receiving plate 4 around the drain body 1, the die 7 is placed on the drain body 1 and held by holding means 8 described later. In addition, the said cylindrical spacer 5 used what was formed in the length corresponding to required concrete thickness.
[0015]
The die body 7 is composed of a substantially deep dish-shaped mold body 7a and a lid body 7b that is detachably attached to the mold body 7a and shields the upper opening thereof. It is formed to have a shape that matches the shape of the drainage groove to be molded. As the metal plate constituting the mold body 7a and the lid body 7b, a material such as steel, stainless steel, aluminum or the like can be used. In the examples, a steel plate that is inexpensive, easy to process and rich in recyclability is used, and rust prevention treatment such as galvanization is applied to the outer surface. Further, the mold body 7a may be formed by casting instead of the drawing process as described above. In this case, there is an advantage that the die cost is lower than that of the drawing process.
[0016]
The mold body 7a and the lid body 7b constituting the punch mold body 7 are respectively formed with through holes 9a and 9b that coincide with each other at substantially the center position, and support holes 19 described later are formed in the through holes 9a and 9b. Can be inserted in the thickness direction. The mold body 7a is provided with locking portions 10 and 10 at positions different from each other by 180 ° with the through hole 9a as the center. As shown in FIGS. 4 to 6, each of the locking portions 10, 10 has a rectangular shape through which a tool 11 for detachment operation having a substantially T-shaped lower end provided with an engagement end protruding on both sides can be inserted from above. And a plurality of restricting protrusions 13 for restricting the position when the tool 11 is rotated approximately 90 degrees in the inserted state, on both the left and right sides of the engaging hole 12. By engaging the engaging end portions of the tool 11 with the engaging portions 10 and 10 and pulling them upward, the die body 7a can be removed from the hardened concrete 6. Further, a fitting insertion groove 15 for the seal ring 14 is formed on the lower surface of the mold body 7a.
[0017]
On the other hand, a positioning plate 16 having an outer diameter substantially equal to the inner diameter of the cylindrical spacer 5 is fixed to a predetermined position of the receiving plate 4 with a nail or the like. The positioning plate 16 is provided with a locking edge 16 'by bending the peripheral edge of the disc-shaped metal plate upward. And the lower edge of the said cylindrical spacer 5 is externally fitted by this latching edge 16 ', and the mounting position of the drain main body 1 is defined. Accordingly, the position and height of the drain main body 1 supported on the upper edge of the cylindrical spacer 5 are determined.
[0018]
A nut 17 is fixed to the center of the positioning plate 16 and the nut hole is formed as a holding screw hole 18 extending in the vertical direction.
[0019]
A male screw portion 19a formed at the lower end portion of a vertically long support rod 19 is screwed into the holding screw hole 18 disposed at the center of the positioning plate 16 from above so that the support rod 19 is received by the receiving plate. 4 to stand up. In this embodiment, the support rod 19 is constituted by a screw rod in which a male screw portion 19b continuous with the male screw portion 19a is formed over the entire length.
[0020]
A holding means 8 that comes into contact with the upper surface of the lid body 7b of the punching die body 7 and holds the height position thereof is detachably attached to the support rod 19. The holding means 8 is constituted by a wing nut 20, and the holding means 8 is rotated relative to the support rod 19 by rotating the wing nut 20 into a male screw portion 19 b of the support rod 19. It can be lifted and removed via a screwing action.
[0021]
Next, the construction method will be described.
[0022]
As described above, the positioning plate 16 is fixed on the receiving plate 4 with a nail or the like, the cylindrical spacer 5 is fitted on the positioning plate 16, and the drain main body 1 is mounted concentrically on the cylindrical spacer 5. . Then, the male screw portion 19a at the lower end of the support rod 19 is screwed into the holding screw hole 18 of the positioning plate 16, and the support rod 19 is erected.
[0023]
Next, the upper end of the support rod 19 is inserted into the through hole 9a of the mold body 7a constituting the punching die body 7, and the mold body 7a is mounted on the drain body 1. At this time, the seal ring 14 is fitted in the insertion groove 15 of the mold body 7a in advance, and the seal ring 14 is fitted on the outer peripheral edge of the tray portion 2 of the drain body 1 by the mounting operation of the mold body 7a. Let This prevents the concrete 6 from flowing into the drain body 1 from between the mold body 7a and the tray part 2 when the concrete 6 is placed. Thereafter, the upper end of the support rod 19 is inserted into the through hole 9b of the lid 7b, and the lid 7b is attached to the mold body 7a to shield the upper opening. Thereby, at the time of placing the concrete 6, a curing action for preventing the concrete 6 from flowing into the mold body 7a is obtained.
[0024]
Then, a wing nut 20 as the holding means 8 is screwed into the male screw portion 19b of the support rod 19 projecting upward from the through hole 9b of the lid body 7b, and is moved downward via its screwing action, and the lid It is brought into contact with the upper surface of the body 7b in a pressed state.
[0025]
As a result, the cylindrical spacer 5, the drain main body 1 and the punching die body 7 are connected and held on the receiving plate 4 through the support rod 19.
[0026]
In this state, concrete 6 is placed on the receiving plate 4 around the drain main body 1 and the die body 7. At this time, the cylindrical spacer 5, the drain main body 1 and the punching die body 7 are connected and held in the above-described manner, so that the cylindrical spacer 5, the drain body 1 and the punch body 7 are not displaced due to the driving pressure of the concrete 6. Moreover, the cover body 7b is attached to the mold body 7a of the punching mold body 7, and the upper opening thereof is shielded, so that the concrete 6 at the time of placing does not enter the mold body 7a. Then, the cast concrete 6 is left for a predetermined time until it is cured. Note that floating water oozes on the upper surface of the concrete 6 as the concrete 6 is hardened. At this point, the lid 7b may be removed from the mold body 7a. By removing the lid 7b in this manner, floating water flows into the mold body 7a, and the floating water can be drained downward from the engagement holes 12 formed in the mold body 7a.
[0027]
Next, the die cutting work of the punching die body 7 will be described.
[0028]
First, when the concrete 6 is hardened, the wing nut 20 is rotated in the direction opposite to the tightening direction to remove it from the support rod 19, and then the lid body 7b is removed from the mold body 7a. At this time, the support rod 19 may also be removed from the positioning plate 16 by rotating in the direction opposite to the tightening direction.
[0029]
In this state, the tool 11 is engaged with the engaging portions 10 of the mold body 7a. This engagement operation is performed by inserting the tool 11 formed in a substantially T shape into each engagement hole 12 of both the locking portions 10 and rotating the tool 11 by approximately 90 degrees. As a result, the tool 11 is engaged with the engagement hole 12, and the position of the tool 11 is restricted by contacting the restriction protrusion 13. Then, by lifting the mold body 7 a upward via the tool 11, the mold body 7 a can be immediately detached from the surrounding concrete 6. Here, if a release agent is applied in advance to the outer peripheral surface of the mold main body 7a, the concrete 6 is hard to solidify on the outer peripheral surface, so that the die cutting operation can be performed more easily.
[0030]
And after such construction, drainage grooves that match the shape of the periphery of the mold body 7 a can be formed around the upper surface of the drain body 1. In addition, a caulking agent is filled in the annular groove formed in the outer peripheral edge portion of the tray portion 2 by the seal ring 14.
[0031]
Moreover, since the die body 7 is composed of a metal mold body 7a and a lid body 7b, it can be used a plurality of times, and the mold body 7a and the lid body 7b are divided. If the inside of the die 7 is soiled by use, it can be easily cleaned.
[0032]
In the embodiment, the engagement hole 12 is formed in the mold body 7a of the die body 7 to form the locking portion 10. However, a protrusion that can be held by a tool such as pliers is projected upward from the mold body 7a. The locking portion 10 may be used. In this case, a through hole for floating water drainage is separately formed in the mold body 7a.
[0033]
Further, in the embodiment, the case where the wing nut 20 is used for the holding means 8 has been described, but the other holding means 8 is shown in FIGS. 7A and 7B proposed by the present applicant in Japanese Utility Model Laid-Open No. 5-81448. The thing of such a structure etc. can be applied.
[0034]
The upper portion of the support rod 19 is a rod-shaped sliding portion 19c, and a fixture 26 that is slidably fitted to the sliding portion 19c from above can be fixed at a predetermined position of the support rod 19. If the holding means 8 is provided, there is no need for a screwing operation by screwing from the upper end of the support rod 19 to the fixed position, so that there is an advantage that the holding means 8 can be quickly attached and detached. is there.
[0035]
【The invention's effect】
As described above, the present invention provides a die body 7 mounted on the upper surface of the drain body 1 held on the receiving plate 4, and a substantially deep dish-shaped mold body 7a made of a metal plate, Since it is formed by the lid body 7b made of a metal plate that is attached to the mold body 7a and shields the upper opening, the punch body 7 has strength and can be used multiple times. Further, since it is made of metal, it can be recycled, and moreover, a plurality of mold main bodies 7a and a plurality of lid bodies 7b can be overlapped with each other. In addition, since the locking portion 10 to which the tool for detachment operation is engaged is provided on the mold body 7a, there are excellent effects such that the detachment operation from the hardened concrete can be easily performed.
[Brief description of the drawings]
FIG. 1 is a longitudinal front view showing a construction state of a drain punch holding device according to the present invention.
FIG. 2 is a plan view of the above-described drain punch holding device.
FIG. 3 is a longitudinal side view of the drain punch holding device according to the above.
FIG. 4 is an enlarged plan view of a locking portion 10 portion.
FIG. 5 is an enlarged side sectional view of a locking portion 10 portion.
6 is an enlarged side cross-sectional view showing a restricting protrusion 13 of the locking portion 10. FIG.
7 is a side sectional view showing another holding means 8. FIG.
FIG. 8 is a side sectional view of a conventional configuration.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Drain body 4 Receptacle plate 7 Die type body 7a Mold body 7b Cover body 8 Holding means 9a, 9b Through-hole 12 Engagement hole 19

Claims (1)

A support rod erected on the support plate so as to coincide with the center of the drain main body held on the support plate;
A punching die that is mounted on the drain body and has a through hole in the thickness direction through which a support rod is inserted, and
And a holding means that is detachably mounted on the protruding portion of the support rod that is inserted through the through-hole and protrudes upward from the punching die body, and abuts against the upper surface of the punching die body to hold its height position. In the drain die holding device for drain,
The punching die is constituted by a substantially deep dish-shaped die body made of a metal plate, and a lid made of a metal plate that is attached to the die body and shields its upper opening ,
The mold body of the punching die body is provided with two locking portions to be engaged with a tool for detachment operation at positions different by 180 ° around the through hole,
Further, the two locking portions are formed in a rectangular shape through which a tool for detachment operation having a substantially T-shaped lower end provided on the bottom surface portion of the mold main body and protruding from both sides can be inserted from above. An engaging hole and a plurality of restricting protrusions that project downward from both the left and right positions of the engaging hole and restrict the engaging end of the tool that is inserted through the engaging hole and rotated 90 degrees. A drain die holding device for drains, characterized in that it is configured .

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