WO2006126784A1 - Mold for cement mortar - Google Patents

Mold for cement mortar Download PDF

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Publication number
WO2006126784A1
WO2006126784A1 PCT/KR2006/001413 KR2006001413W WO2006126784A1 WO 2006126784 A1 WO2006126784 A1 WO 2006126784A1 KR 2006001413 W KR2006001413 W KR 2006001413W WO 2006126784 A1 WO2006126784 A1 WO 2006126784A1
Authority
WO
WIPO (PCT)
Prior art keywords
side frames
cement mortar
mold
pair
frame
Prior art date
Application number
PCT/KR2006/001413
Other languages
French (fr)
Inventor
Gi Joung Sung
Original Assignee
Gi Joung Sung
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gi Joung Sung filed Critical Gi Joung Sung
Publication of WO2006126784A1 publication Critical patent/WO2006126784A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/40—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material
    • B28B7/42—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material for heating or cooling, e.g. steam jackets, by means of treating agents acting directly on the moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/02—Moulds with adjustable parts specially for modifying at will the dimensions or form of the moulded article
    • B28B7/04—Moulds with adjustable parts specially for modifying at will the dimensions or form of the moulded article one or more of the parts being pivotally mounted
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0002—Auxiliary parts or elements of the mould
    • B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0029—Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts
    • B28B7/0035—Moulds characterised by the way in which the sidewalls of the mould and the moulded article move with respect to each other during demoulding
    • B28B7/0044—Moulds characterised by the way in which the sidewalls of the mould and the moulded article move with respect to each other during demoulding the sidewalls of the mould being only tilted away from the sidewalls of the moulded article, e.g. moulds with hingedly mounted sidewalls

Definitions

  • the present invention relates, in general, to a mold for cement mortar, and more particularly, to a mold for cement mortar that is not deformed during the molding of cement mortar.
  • cement mortar is obtained by kneading cement and sand with water, and then becomes stiff with the lapse of time.
  • cement mortar is poured into the mold and the mold is removed after the lapse of a predetermined time to obtain molded cement mortar.
  • the mold for cement mortar that is formed of the timber or the veneer board cannot be reutilized and has a disadvantage to make production cost high.
  • the conventional mold for cement mortar is formed of a pair of semi-circular cylinders.
  • the locking unit of the pair of semi-circular cylinders is released so that the pair of semi-circular cylinders can be spread from side to side about a hinge.
  • a separable circular disk is provided on the lower part of the cylinder to mold cement mortar having a circular section. Since the conventional mold for cement mortar is simply cylindrical, there is a problem that the shape of the section of the molded cement mortar is limited.
  • the cement mortar filled in the mold having the square section is molded so that the long and short sides and the edges can not be uniform. That is, the cement mortar is non-uniformly contracted on the long and short sides and the edges. Therefore, the side frames of the mold that form the side walls of the molded cement mortar are deformed to reduce the life of the mold and to deteriorate the quality of the molded cement mortar .
  • an object of the present invention is to provide a mold for cement mortar that is not deformed during the molding of cement mortar to increase the life thereof and that is capable of obtaining molded cement mortar with a square section and of improving the quality of the molded cement mortar.
  • a mold for cement mortar comprising a pair of side frames that has ⁇ 1 -' shaped sections that are curved to form side walls, on whose internal surfaces accommodating recesses are formed to be perpendicular to curved lines, and that form the side walls of the cement mortar that is filled in the side frames, hinge coupling units for coupling which the pair of side frames to be hinged, frame coupling units for coupling the pair of side frames with each other so that the space that is formed inside of the pair of side frames can have a square section, a lower frame whose circumference is detachably coupled with the accommodating recesses of the two side frames to intercept one opening of the space that is formed in the two side frames and to form the lower part of the cement mortar that is filled in the two side frames, and a plurality of reinforcing ribs that is provided on the external surfaces of the pair of side frames to reinforce the side frames .
  • the frame coupling units comprise two or more first brackets that are provided on the external surface of one side frame of the two side frames, connecting bolts whose each one side is rotatably coupled with each of the first brackets, the second brackets in which insertion holes through which the other sides of the connecting bolts pass are formed and that are provided on the external surface of the other side frame of the two side frames to correspond to the first brackets, and fastening nuts that are coupled with the other sides of the connecting bolts to fix the other sides of the connecting bolts to the second brackets.
  • the reinforcing ribs comprise a plurality of vertical ribs that runs parallel to the curved lines of the side frames and a plurality of horizontal ribs that connects the vertical ribs to each other.
  • the mold for cement mortar further comprises a pair of covers that covers the reinforcing ribs from the outside and that are provided on the external surfaces of the pair of side frames so that it is possible to improve the external appearance of the mold.
  • the mold for cement mortar further comprises a warming member that is provided between the side frames and the covers to warm the cement mortar that is filled in the space of the two side frames so that it can be possible to facilitate the molding of the cement mortar and to increase the strength of the molded cement mortar.
  • Two or more reinforcing metal bands that extend to be perpendicular to the curved lines of the side frames are provided on the external surface of each of the two side frames .
  • a cutting recess for forming a grip for moving the mold is provided on the external surface of each of the two side frames. Both ends of a string grip are coupled with one side frame of the pair of side frames.
  • molded cement mortar having a square section, to prevent a mold for cement mortar from being deformed during the molding of cement mortar so that the life of mold for cement mortar can be increased, and to improve the quality of the molded cement mortar.
  • FIG. 1 is a perspective view of a mold for cement mortar according to an embodiment of the present invention
  • FIG. 2 is a perspective view of the mold for cement mortar according to the embodiment of FIG. 1, which is spread;
  • FIG. 3 is an exploded perspective view of a side frame and a cover according to the embodiment of FIG. 1, which are separated from each other;
  • FIG. 4 is a sectional view of the side frame and the cover of FIG. 3, which are coupled with each other;
  • FIG. 5 is an exploded perspective view illustrating another embodiment of the side frame and the cover in the mold for cement mortar according to the embodiment of FIG. 1 ;
  • FIG. 6 is a perspective view illustrating another embodiment of the mold for cement mortar according to the present invention.
  • FIG. 1 is a perspective view of a mold for cement mortar according to an embodiment of the present invention.
  • FIG. 2 is a perspective view of the mold for cement mortar according to the embodiment of FIG. 1, which is spread.
  • FIG. 3 is an exploded perspective view of a side frame and a cover according to the embodiment of FIG. 1, which are separated from each other.
  • FIG. 4 is a sectional view of the side frame and the cover of FIG. 3, which are coupled with each other.
  • a mold for cement mortar (5) includes a pair of side frames (10 and 10') that forms the side walls of the cement mortar that is filled in the cement mortar mold (5) , hinge coupling units (20) for hinge coupling the pair of side frames (10 and 10'), frame coupling units (30) for coupling the pair of side frames (10 and 10' ) with each other so that the space formed inside of the pair of side frames (10 and 10') can have a square section, and a lower frame (41) that forms the lower part of the cement mortar that is filled in the mold for cement mortar (5) .
  • the side frames (10 and 10') have ⁇ 1 -' shaped sections to form side walls.
  • Accommodating recesses (13 and 13' ) that have predetermined width and depth are formed on the internal surfaces of the side frames (10 and 10') to be perpendicular to the curved lines that are formed by X1 —' shaped curves.
  • the lower frame (41) that will be described later is mounted in the accommodating recesses (13 and 13').
  • the hinge coupling units (20) are provided on the boundaries of the pair of side frames (10 and 10' ) that face each other.
  • the hinge coupling units (20) include a plurality of hinge brackets (21 and 21' ) that protrude from the upper part and the lower part of the external surfaces of the side frames (10 and 10' ) and a plurality of hinge pins (25) that is penetratingly coupled with the hinge brackets (21 and 21').
  • the pair of side frames (10 and 10') is rotated centering around the hinge pins (25) to be separated from each other, that is, the pair of side frames (10 and 10') is unfolded from side to side centering around the hinge pins (25) so that the molded cement mortar that is formed in the pair of side frames (10 and 10') can be easily ejected.
  • the frame coupling units (30) are provided on the boundaries of the pair of side frames (10 and 10' ) that faces the hinge coupling unit (20) to couple the pair of side frames (10 and 10') with each other.
  • the frame coupling units (30) include two or more first brackets (31) in which predetermined bolt coupling units (33) are formed and that are provided on the external surface of one side frame (10) of the pair of side frames (10 and 10'), connecting bolts (35) that are coupled with the first brackets (31) so that one side of each of the connecting bolts (35) can be rotated, second brackets (31' ) in which insertion holes (33' ) through which the other ends of the connecting bolts (35) pass are formed and that are provided on the external surface of the other side frame (10') of the pair of side frames (10 and 10') to correspond to the first brackets (31) , and fastening nuts (39) that are coupled with the other sides of the connecting bolts (35) to fix the other sides of the connecting bolts 35 to the second brackets (31' ) .
  • the pair of hinge coupled side frames (10 and 10') are coupled with each other by the frame coupling units (30) so that the internal space of the side frames (10 and 10') can has the square section.
  • the sides of the insertion holes (33' ) that are formed in the second brackets (31' ) are opened so that the connecting bolts (35) can be rotated to be inserted into the opened sides of the insertion holes (33' ) .
  • the fastening nuts (39) should be preferably butterfly nuts so that a fastening operation can be easily performed.
  • one side of each of the connecting bolts (35) is rotatably coupled with each of the first brackets (31) by the fixing pins (37) .
  • the lower frame (41) is a square plate so that the circumference thereof can be detachably coupled with the accommodating recesses (13 and 13' ) that are formed on the internal surfaces of the side frames (10 and 10') .
  • the lower frame 41 intercepts the lower opening of the internal space that is formed by the pair of side frames (10 and 10' ) to form the lower part of the cement mortar that is filled in the internal space by the two side frames (10 and 10') .
  • the mold for cement mortar (5) includes a plurality of reinforcing ribs (45) that is provided on the external surfaces of the pair of side frames (10 and 10' ) to reinforce the side frames
  • the reinforcing ribs (45) include a plurality of vertical ribs (47) that runs parallel to the curved lines (11 and 11') of the side frames (10 and 10') and a plurality of horizontal ribs (49) that connects the vertical ribs (47) to each other.
  • the reinforcing ribs (45) are latticed by and large.
  • the side frames (10 and 10' ) are reinforced by the plurality of reinforcing ribs (45) so that it can be possible to prevent the side frames (10 and 10') from being deformed due to the contraction of the cement mortar during the molding of the cement mortar. Therefore, it is possible to increase the life of the mold (5) and to improve the quality of the molded cement mortar.
  • reinforcing metal bands (70) are coupled with one side frame (10) .
  • the pair of reinforcing metal bands (70) is preferably coupled with the side frame (10) in the upper and lower ends of the side frame (10) .
  • the pair of side frames (10 and 10' ) is reinforced by the reinforcing metal bands (70) so that it is possible to prevent the side frames (10 and 10') from being deformed due to the contraction of the cement mortar during the molding of the cement mortar and external force.
  • the mold for cement mortar (5) further includes a pair of covers (51 and 51') that is provided on the external surfaces of the side frames (10 and 10') .
  • the covers (51) and (51') cover the plurality of reinforcing ribs (45) from the outside and are coupled with a plurality of bolt coupling units (15) that is provided on the external surfaces of the side frames (10 and 10' ) by a plurality of fastening bolts (53) . Therefore, the reinforcing ribs (45) are not exposed to the outside due to the covers (51 and 51' ) so that it is possible to improve the external appearance of the mold (5) .
  • the mold for cement mortar (5) further includes a warming member (60) that is provided between the side frames (10 and 10' ) and the covers (51 and 51' ) to warm the cement mortar that is filled inside of the side frames (10 and 10').
  • the warming member (60) facilitates the molding of the cement mortar to increase the strength of the molded cement mortar.
  • the warming member (60) is preferably formed of Styrofoam.
  • a cutting recess (80) for forming a grip for moving the mold for cement mortar (5) is preferably provided on the external surface of each of the pair of side frames (10 and 10').
  • the cutting recesses (80) are provided so that a worker can easily move the mold for cement mortar (5) .
  • the mold for cement mortar (5) preferably includes a string grip for moving the same.
  • the string grip is preferably used for moving mold for cement mortar (5) in a state where the cement mortar is not filled in the mold for cement mortar.
  • the above-described cutting recesses (80) that are provided in the pair of side frames (10 and 10') are preferably used for moving the mold for cement mortar (5) in a state where the cement mortar is filled in the mold for cement mortar (5) .
  • the lower frame (41) is mounted in the accommodating recesses (13 and 13') of the side frames (10 and 10') while rotating the pair of side frames (10 and 10' ) that is hinge coupled with each other by the hinge coupling units (20) centering around the hinge pins (25) .
  • the first and second brackets (31 and 31' ) of the pair of side frames (10 and 10' ) are coupled with each other by the connecting bolts (35) and the fastening nuts (39) to connect the pair of side frames (10 and 10' ) to each other.
  • the connecting bolt (35) that is rotatably coupled with the first bracket (31) of the side frame (10) is inserted into the insertion hole (33' ) of the other side frame (10') and is fastened by the fastening nut (39) so that the pair of side frames (10 and 10' ) can be coupled with each other.
  • the internal space of the pair of side frames (10 and 10' ) has the square section.
  • the cement mortar is filled in the internal space of the pair of side frames (10 and 10' ) and is molded. While the cement mortar that is filled in the side frames (10 and 10') is molded, the cement mortar is contracted so that stress can be applied to the side frames
  • the frame coupling units (30) are released and the pair of side frames (10 and 10') are unfolded from side to side about the hinge pins (25) .
  • the lower frame (41) is deviated from the accommodating recesses (13 and 13') of the side frames (10 and 10' ) and the molded cement mortar is ejected from the side frames (10 and 10' ) so that the molded cement mortar having the square section can be obtained.
  • the plurality of reinforcing ribs that reinforce the side frames are provided on the external surfaces of the pair of side frames in which one side is hinge coupled by the hinge coupling unit and the other side is coupled by the frame coupling unit so that the space of the side frames has the square section. Therefore, it is possible to obtain the molded cement mortar having the square section and to prevent the mold from being deformed during the molding of the cement mortar so that it is possible to increase the life of the mold and to improve the quality of the molded cement mortar.

Abstract

A mold for cement mortar is provided. The mold for cement mortar includes a pair of side frames that have “ι” shaped sections that are curved to form side walls, on whose internal surfaces accommodating recesses are formed to be perpendicular to curved lines, and that form the side walls of the cement mortar that is filled inside of the side frames, coupling units for hinge coupling the pair of side frames to be hinged, frame coupling units for coupling the pair of side frames with each other so that the space that is formed in the pair of side frames can have a square section, a lower frame whose circumference is detachably coupled with the accommodating recesses of the two side frames to intercept one opening of the space that is formed in the two side frames and to form the lower part of the cement mortar that is filled in the two side frames, and a plurality of reinforcing ribs that is provided on the external surfaces of the pair of side frames to reinforce the side frames. Therefore, it is possible to obtain molded cement mortar having a square section, to prevent a mold for cement mortar from being deformed during the molding of cement mortar so that the life of the cement mortar mold can be increased, and to improve the quality of the molded cement mortar.

Description

MOLD FOR CEMENT MORTAR
Technical Field
The present invention relates, in general, to a mold for cement mortar, and more particularly, to a mold for cement mortar that is not deformed during the molding of cement mortar.
Background Art
Cement mortar is obtained by kneading cement and sand with water, and then becomes stiff with the lapse of time. In a conventional art, after forming a mold of a timber or a veneer board, cement mortar is poured into the mold and the mold is removed after the lapse of a predetermined time to obtain molded cement mortar.
The mold for cement mortar that is formed of the timber or the veneer board cannot be reutilized and has a disadvantage to make production cost high.
Recently, a mold for cement mortar that is formed of synthetic resin or steel to be repeatedly used and reutilized is widespread. The conventional mold for cement mortar is formed of a pair of semi-circular cylinders. The locking unit of the pair of semi-circular cylinders is released so that the pair of semi-circular cylinders can be spread from side to side about a hinge. A separable circular disk is provided on the lower part of the cylinder to mold cement mortar having a circular section. Since the conventional mold for cement mortar is simply cylindrical, there is a problem that the shape of the section of the molded cement mortar is limited.
In particular, when cement mortar is molded to have a square section, the cement mortar filled in the mold having the square section is molded so that the long and short sides and the edges can not be uniform. That is, the cement mortar is non-uniformly contracted on the long and short sides and the edges. Therefore, the side frames of the mold that form the side walls of the molded cement mortar are deformed to reduce the life of the mold and to deteriorate the quality of the molded cement mortar .
Disclosure of the Invention
Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a mold for cement mortar that is not deformed during the molding of cement mortar to increase the life thereof and that is capable of obtaining molded cement mortar with a square section and of improving the quality of the molded cement mortar.
In order to accomplish the above object, there is provided a mold for cement mortar comprising a pair of side frames that has Λ1-' shaped sections that are curved to form side walls, on whose internal surfaces accommodating recesses are formed to be perpendicular to curved lines, and that form the side walls of the cement mortar that is filled in the side frames, hinge coupling units for coupling which the pair of side frames to be hinged, frame coupling units for coupling the pair of side frames with each other so that the space that is formed inside of the pair of side frames can have a square section, a lower frame whose circumference is detachably coupled with the accommodating recesses of the two side frames to intercept one opening of the space that is formed in the two side frames and to form the lower part of the cement mortar that is filled in the two side frames, and a plurality of reinforcing ribs that is provided on the external surfaces of the pair of side frames to reinforce the side frames . The frame coupling units comprise two or more first brackets that are provided on the external surface of one side frame of the two side frames, connecting bolts whose each one side is rotatably coupled with each of the first brackets, the second brackets in which insertion holes through which the other sides of the connecting bolts pass are formed and that are provided on the external surface of the other side frame of the two side frames to correspond to the first brackets, and fastening nuts that are coupled with the other sides of the connecting bolts to fix the other sides of the connecting bolts to the second brackets. The reinforcing ribs comprise a plurality of vertical ribs that runs parallel to the curved lines of the side frames and a plurality of horizontal ribs that connects the vertical ribs to each other.
The mold for cement mortar further comprises a pair of covers that covers the reinforcing ribs from the outside and that are provided on the external surfaces of the pair of side frames so that it is possible to improve the external appearance of the mold. Also, the mold for cement mortar further comprises a warming member that is provided between the side frames and the covers to warm the cement mortar that is filled in the space of the two side frames so that it can be possible to facilitate the molding of the cement mortar and to increase the strength of the molded cement mortar. Two or more reinforcing metal bands that extend to be perpendicular to the curved lines of the side frames are provided on the external surface of each of the two side frames .
A cutting recess for forming a grip for moving the mold is provided on the external surface of each of the two side frames. Both ends of a string grip are coupled with one side frame of the pair of side frames.
Advantageous Effects
According to the present invention, it is possible to obtain molded cement mortar having a square section, to prevent a mold for cement mortar from being deformed during the molding of cement mortar so that the life of mold for cement mortar can be increased, and to improve the quality of the molded cement mortar.
Brief Description of the Drawings
FIG. 1 is a perspective view of a mold for cement mortar according to an embodiment of the present invention;
FIG. 2 is a perspective view of the mold for cement mortar according to the embodiment of FIG. 1, which is spread;
FIG. 3 is an exploded perspective view of a side frame and a cover according to the embodiment of FIG. 1, which are separated from each other;
FIG. 4 is a sectional view of the side frame and the cover of FIG. 3, which are coupled with each other;
FIG. 5 is an exploded perspective view illustrating another embodiment of the side frame and the cover in the mold for cement mortar according to the embodiment of FIG. 1 ; and
FIG. 6 is a perspective view illustrating another embodiment of the mold for cement mortar according to the present invention.
<Description of the elements in the drawings>
5: mold for cement mortar 10, 10': side frames
13, 13': accommodating recesses 20: hinge coupling unit 30: frame coupling unit 31, 31': the first and the second brackets
35: connecting bolt 37: fixing pin
39: fastening nut 41: lower frame
45: reinforcing rib 47: vertical rib 49: horizontal rib 51, 51': covers
60: warming member
Best Mode for Carrying Out the Invention
Hereinafter, preferred embodiments of the present invention will be described with reference to the attached drawings. The same reference numerals in the drawings denote similar elements.
FIG. 1 is a perspective view of a mold for cement mortar according to an embodiment of the present invention. FIG. 2 is a perspective view of the mold for cement mortar according to the embodiment of FIG. 1, which is spread. FIG. 3 is an exploded perspective view of a side frame and a cover according to the embodiment of FIG. 1, which are separated from each other. FIG. 4 is a sectional view of the side frame and the cover of FIG. 3, which are coupled with each other.
As illustrated in the drawings, a mold for cement mortar (5) according to the present invention includes a pair of side frames (10 and 10') that forms the side walls of the cement mortar that is filled in the cement mortar mold (5) , hinge coupling units (20) for hinge coupling the pair of side frames (10 and 10'), frame coupling units (30) for coupling the pair of side frames (10 and 10' ) with each other so that the space formed inside of the pair of side frames (10 and 10') can have a square section, and a lower frame (41) that forms the lower part of the cement mortar that is filled in the mold for cement mortar (5) .
The side frames (10 and 10') have Λ1-' shaped sections to form side walls. Accommodating recesses (13 and 13' ) that have predetermined width and depth are formed on the internal surfaces of the side frames (10 and 10') to be perpendicular to the curved lines that are formed by X1—' shaped curves. The lower frame (41) that will be described later is mounted in the accommodating recesses (13 and 13').
The hinge coupling units (20) are provided on the boundaries of the pair of side frames (10 and 10' ) that face each other. The hinge coupling units (20) include a plurality of hinge brackets (21 and 21' ) that protrude from the upper part and the lower part of the external surfaces of the side frames (10 and 10' ) and a plurality of hinge pins (25) that is penetratingly coupled with the hinge brackets (21 and 21'). The pair of side frames (10 and 10') is rotated centering around the hinge pins (25) to be separated from each other, that is, the pair of side frames (10 and 10') is unfolded from side to side centering around the hinge pins (25) so that the molded cement mortar that is formed in the pair of side frames (10 and 10') can be easily ejected.
The frame coupling units (30) are provided on the boundaries of the pair of side frames (10 and 10' ) that faces the hinge coupling unit (20) to couple the pair of side frames (10 and 10') with each other. The frame coupling units (30) include two or more first brackets (31) in which predetermined bolt coupling units (33) are formed and that are provided on the external surface of one side frame (10) of the pair of side frames (10 and 10'), connecting bolts (35) that are coupled with the first brackets (31) so that one side of each of the connecting bolts (35) can be rotated, second brackets (31' ) in which insertion holes (33' ) through which the other ends of the connecting bolts (35) pass are formed and that are provided on the external surface of the other side frame (10') of the pair of side frames (10 and 10') to correspond to the first brackets (31) , and fastening nuts (39) that are coupled with the other sides of the connecting bolts (35) to fix the other sides of the connecting bolts 35 to the second brackets (31' ) .
The pair of hinge coupled side frames (10 and 10') are coupled with each other by the frame coupling units (30) so that the internal space of the side frames (10 and 10') can has the square section.
The sides of the insertion holes (33' ) that are formed in the second brackets (31' ) are opened so that the connecting bolts (35) can be rotated to be inserted into the opened sides of the insertion holes (33' ) . It is preferable that The fastening nuts (39) should be preferably butterfly nuts so that a fastening operation can be easily performed. It is also preferable that one side of each of the connecting bolts (35) is rotatably coupled with each of the first brackets (31) by the fixing pins (37) . The lower frame (41) is a square plate so that the circumference thereof can be detachably coupled with the accommodating recesses (13 and 13' ) that are formed on the internal surfaces of the side frames (10 and 10') . The lower frame 41 intercepts the lower opening of the internal space that is formed by the pair of side frames (10 and 10' ) to form the lower part of the cement mortar that is filled in the internal space by the two side frames (10 and 10') .
The mold for cement mortar (5) according to the present invention includes a plurality of reinforcing ribs (45) that is provided on the external surfaces of the pair of side frames (10 and 10' ) to reinforce the side frames
(10 and 10' ) .
The reinforcing ribs (45) include a plurality of vertical ribs (47) that runs parallel to the curved lines (11 and 11') of the side frames (10 and 10') and a plurality of horizontal ribs (49) that connects the vertical ribs (47) to each other. The reinforcing ribs (45) are latticed by and large.
The side frames (10 and 10' ) are reinforced by the plurality of reinforcing ribs (45) so that it can be possible to prevent the side frames (10 and 10') from being deformed due to the contraction of the cement mortar during the molding of the cement mortar. Therefore, it is possible to increase the life of the mold (5) and to improve the quality of the molded cement mortar.
As illustrated in FIG. 5, two or more reinforcing metal bands that extend to be perpendicular to the curved lines (11 and 11' ) are preferably provided on the external surface of each of the side frames (10 and 10') . Referring to FIG. 5, reinforcing metal bands (70) are coupled with one side frame (10) . The pair of reinforcing metal bands (70) is preferably coupled with the side frame (10) in the upper and lower ends of the side frame (10) . The pair of side frames (10 and 10' ) is reinforced by the reinforcing metal bands (70) so that it is possible to prevent the side frames (10 and 10') from being deformed due to the contraction of the cement mortar during the molding of the cement mortar and external force.
The mold for cement mortar (5) further includes a pair of covers (51 and 51') that is provided on the external surfaces of the side frames (10 and 10') . The covers (51) and (51') cover the plurality of reinforcing ribs (45) from the outside and are coupled with a plurality of bolt coupling units (15) that is provided on the external surfaces of the side frames (10 and 10' ) by a plurality of fastening bolts (53) . Therefore, the reinforcing ribs (45) are not exposed to the outside due to the covers (51 and 51' ) so that it is possible to improve the external appearance of the mold (5) .
The mold for cement mortar (5) further includes a warming member (60) that is provided between the side frames (10 and 10' ) and the covers (51 and 51' ) to warm the cement mortar that is filled inside of the side frames (10 and 10'). The warming member (60) facilitates the molding of the cement mortar to increase the strength of the molded cement mortar. The warming member (60) is preferably formed of Styrofoam. As illustrated in FIG. 5, in the mold for cement mortar (5) , a cutting recess (80) for forming a grip for moving the mold for cement mortar (5) is preferably provided on the external surface of each of the pair of side frames (10 and 10'). The cutting recesses (80) are provided so that a worker can easily move the mold for cement mortar (5) . When the cutting recesses (80) are provided in the side frames (10 and 10'), cutting recesses
(53) ' are also provided in the above-described covers (51 and 51') that are coupled with the side frames (10 and 10') in order to cover the reinforcing ribs (45) .
As illustrated in FIG. 6, the mold for cement mortar (5) preferably includes a string grip for moving the same. The string grip is preferably used for moving mold for cement mortar (5) in a state where the cement mortar is not filled in the mold for cement mortar. The above-described cutting recesses (80) that are provided in the pair of side frames (10 and 10') are preferably used for moving the mold for cement mortar (5) in a state where the cement mortar is filled in the mold for cement mortar (5) .
Processes of molding the cement mortar using the mold for cement mortar (5) according to the present invention will be described as follows.
First, the lower frame (41) is mounted in the accommodating recesses (13 and 13') of the side frames (10 and 10') while rotating the pair of side frames (10 and 10' ) that is hinge coupled with each other by the hinge coupling units (20) centering around the hinge pins (25) .
The first and second brackets (31 and 31' ) of the pair of side frames (10 and 10' ) are coupled with each other by the connecting bolts (35) and the fastening nuts (39) to connect the pair of side frames (10 and 10' ) to each other. The connecting bolt (35) that is rotatably coupled with the first bracket (31) of the side frame (10) is inserted into the insertion hole (33' ) of the other side frame (10') and is fastened by the fastening nut (39) so that the pair of side frames (10 and 10' ) can be coupled with each other. The internal space of the pair of side frames (10 and 10' ) has the square section.
Then, the cement mortar is filled in the internal space of the pair of side frames (10 and 10' ) and is molded. While the cement mortar that is filled in the side frames (10 and 10') is molded, the cement mortar is contracted so that stress can be applied to the side frames
(10 and 10' ) . It is possible to prevent the side frames (10 and 10' ) from being deformed by the plurality of reinforcing ribs (45) and the two or more reinforcing metal bands (70) that are provided on the external surfaces of the side frames (10 and 10') .
When the molding of the cement mortar is completed, the frame coupling units (30) are released and the pair of side frames (10 and 10') are unfolded from side to side about the hinge pins (25) .
The lower frame (41) is deviated from the accommodating recesses (13 and 13') of the side frames (10 and 10' ) and the molded cement mortar is ejected from the side frames (10 and 10' ) so that the molded cement mortar having the square section can be obtained.
As described above, the plurality of reinforcing ribs that reinforce the side frames are provided on the external surfaces of the pair of side frames in which one side is hinge coupled by the hinge coupling unit and the other side is coupled by the frame coupling unit so that the space of the side frames has the square section. Therefore, it is possible to obtain the molded cement mortar having the square section and to prevent the mold from being deformed during the molding of the cement mortar so that it is possible to increase the life of the mold and to improve the quality of the molded cement mortar.
While this invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

Claims
1. A mold for cement mortar (5) comprising: a pair of side frames (10 and 10' ) that have ^*-' shaped sections that are curved to form side walls, on whose internal surfaces accommodating recesses (13 and 13' ) are formed to be perpendicular to curved lines, and that form the side walls of the cement mortar that is filled inside of the side frames (10 and 10' ); hinge coupling units (20) for coupling the pair of side frames (10 and 10') to be hinged; frame coupling units (30) for coupling the pair of side frames (10 and 10' ) with each other so that the space that is formed in the pair of side frames (10 and 10' ) has a square section; a lower frame whose circumference is detachably coupled with the accommodating recesses (13 and 13' ) of the two side frames (10 and 10') to intercept one opening of the space that is formed in the two side frames (10 and 10' ) and to form the lower part of the cement mortar that is filled in the two side frames (10 and 10' ) ; and a plurality of reinforcing ribs (45) that is provided on the external surfaces of the pair of side frames (10 and 10' ) to reinforce the side frames (10 and 10' ) .
2. The mold for cement mortar (5) according to claim 1, wherein the frame coupling units (30) comprise: two or more first brackets (31) that are provided on the external surface of one side frame of the two side frames (10 and 10' ) ; connecting bolts (35) whose each one side is rotatably coupled with each of the first brackets (31) ; the second brackets (31' ) in which insertion holes
(33' ) through which the other sides of the connecting bolts
(35) pass are formed and that are provided on the external surface of the other side frame of the two side frames (10 and 10' ) to correspond to the first brackets (31) ; and fastening nuts (39) that are coupled with the other sides of the connecting bolts (35) to fix the other sides of the connecting bolts (35) to the second brackets (31' ) .
3. The mold for cement mortar (5) according to claim
1, wherein the reinforcing ribs (45) comprise: a plurality of vertical ribs (47) that runs parallel to the curved lines of the side frames (10 and 10'); and a plurality of horizontal ribs (49) that connects the vertical ribs (47) to each other.
4. The mold for cement mortar (5) according to claim 1 or 3, further comprising a pair of covers (51 and 51') that covers the reinforcing ribs (45) from the outside and that are provided on the external surfaces of the pair of side frames (10 and 10' ).
5. The mold for cement mortar (5) according to claim 4, further comprising a warming member (60) that is provided between the side frames (10 and 10') and the covers to warm the cement mortar that is filled inside of the space of the two side frames (10 and 10' ).
6. The mold for cement mortar (5) according to claim 1, wherein two or more reinforcing metal bands (70) that extend to be perpendicular to the curved lines of the side frames (10 and 10' ) are provided on the external surface of each of the two side frames (10 and 10') .
7. The mold for cement mortar (5) according to claim 1, wherein a cutting recess (80) for forming a grip for moving the mold is provided on the external surface of each of the two side frames (10 and 10') .
8. The mold for cement mortar (5) according to claim 1, wherein both ends of a string grip are coupled with one side frame of the pair of side frames (10 and 10') .
PCT/KR2006/001413 2005-05-25 2006-04-17 Mold for cement mortar WO2006126784A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20-2005-0014868 2005-05-25
KR20-2005-0014868U KR200392591Y1 (en) 2005-05-25 2005-05-25 Mold for cement mortar

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Publication Number Publication Date
WO2006126784A1 true WO2006126784A1 (en) 2006-11-30

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JP2019195935A (en) * 2018-05-09 2019-11-14 株式会社鴻池組 Flask
JP2019196203A (en) * 2018-05-09 2019-11-14 株式会社鴻池組 Flexible container bag

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JPH09155846A (en) * 1995-12-01 1997-06-17 Fujita Corp Production of precast concrete form
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JPH09155846A (en) * 1995-12-01 1997-06-17 Fujita Corp Production of precast concrete form
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JP2003231112A (en) * 2002-02-06 2003-08-19 Takagi Shoji Kk Concrete block molding form

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JP2019195935A (en) * 2018-05-09 2019-11-14 株式会社鴻池組 Flask
JP2019196203A (en) * 2018-05-09 2019-11-14 株式会社鴻池組 Flexible container bag
JP7093921B2 (en) 2018-05-09 2022-07-01 株式会社鴻池組 Formwork
JP7142839B2 (en) 2018-05-09 2022-09-28 株式会社鴻池組 flexible container bag

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CN101180165A (en) 2008-05-14

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