JP5348872B2 - Corner retaining wall formwork form - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a form for production of a corner retaining wall block, a form that simplifies and facilitates a setting operation of each outside plate for each inside plate. <P>SOLUTION: The form includes a pair of left and right movable bases 4 that are arranged on top face of a base 1 so as to make them movable on the top face of the base 1 along the rotary track of each inside plate 5. The inside plates 5 are each erected on the top face of the movable base 4. The first outside plates 8 are each arranged on the movable base 4 so as to be able to move in parallel with the inside plate 5, while the second outside plates 9 are each faced in parallel with the inside plate 5 and are mounted on the first outside plate 8 so that the position in the left and right directions relative to the first outside plate 8 can be changed. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a formwork for producing a corner retaining wall block that is useful in forming the corners of a retaining wall.

  As the molds for manufacturing the corner retaining wall blocks, the molds described in Patent Documents 1 and 2 below are known.

The formwork disclosed in Patent Document 1 is
A base, a support column erected on the upper surface of the base, a pair of left and right inner plates rotatably provided on the support column, and a pair of left and right outer plates fixed to the upper surface of the base at intervals from each inner plate And a corner side plate mounted in a gap between the outer side plates, and a end plate fixed to an end of each inner side plate. According to this formwork, various corner retaining wall blocks having different corner angles can be produced in one formwork by rotating each inner plate about the support and changing its opening angle.

The formwork disclosed in Patent Document 2 relates to the improvement of the formwork disclosed in Patent Document 1, and specifically, each inner plate is rotated by the same angle around the support column, and the opening angle is set. An angle variable mechanism for changing, and a rail provided on the upper surface of the base and slidably supporting the inner and outer plates are further provided. According to this formwork, the operation of changing the opening angle of each inner plate can be easily performed by the angle variable mechanism.
Real fairness 2-44965 Reality 8-4248

  In the formwork disclosed in Patent Document 2, it is necessary to fix the outer plate to each inner plate with a bolt through the bottom plate before and after changing the opening angle of each inner plate to a desired angle. There is a problem that the burden and time related to the setting work for fixing each outer plate, which is an object, to each inner plate through the bottom plate while aligning the outer plates are increased.

  The present invention was created in view of the above circumstances, and an object of the present invention is to provide a corner retaining wall block manufacturing form that can easily and easily perform setting work of each outer plate with respect to each inner plate. There is.

  In order to achieve the above-mentioned object, the present invention is arranged with a base, a support column erected on the upper surface of the base, a pair of left and right inner plates rotatably provided on the support column, and a space between each inner plate. A pair of left and right outer plates, a corner side plate mounted in a gap between the outer plates, a pair of left and right bottom plates disposed so as to be sandwiched between each inner plate and each outer plate, and a gap between the bottom plates. A corner retaining wall block formwork having a corner bottom plate to be mounted and a end plate disposed between an end portion of each inner plate and an end portion of each outer plate, and the upper surface of the base on each inner side It has a pair of left and right movable bases arranged on the upper surface of the base so that it can move along the rotation path of the plate, each inner plate is erected on the upper surface of each movable base, and each outer plate is Placed on a movable base so that it can move parallel to the plate That, and its features in that.

  According to this corner retaining wall block manufacturing form, a pair of left and right movable bases are arranged on the upper surface of the base so that the upper surface of the base can be moved along the rotation path of each inner plate, and each inner plate is movable. Each outer plate is erected on the upper surface of the base and is arranged on the movable base so that each outer plate can be translated relative to each inner plate. It is possible to greatly reduce the work load and work time when setting the at a predetermined position, whereby the desired corner retaining wall block can be manufactured with high accuracy and high efficiency.

  ADVANTAGE OF THE INVENTION According to this invention, the form for a corner retaining wall block manufacture which can perform the setting operation | work of each outer side board with respect to each inner side board easily and easily can be provided.

  The above object and other objects, structural features, and operational effects of the present invention will become apparent from the following description and the accompanying drawings.

[First Embodiment]
1 to 7 relate to the first embodiment of the present invention, FIG. 1 is a top view of the mold, FIG. 2 is a left side view of the mold shown in FIG. 1, and FIG. 3 is shown in FIG. FIG. 4 is a rear view of the end plate shown in FIG. 1, FIG. 5 is a rear view of the outer plate shown in FIG. 1, FIG. 6 is an explanatory diagram of the block manufacturing procedure, and FIG. It is a perspective view of a corner retaining wall block whose angle is 90 degrees.

  First, the mechanism of the mold shown in FIG. 1 to FIG. 5 will be described.

  1 to 5, reference numeral 1 is a base, 2 is a column, 3 is a rotation guide, 4 is a pair of left and right movable bases, 5 is a pair of left and right inner plates, 6 is a pair of left and right bottom plates, 7 is a pair of left and right end plates, 8 is a pair of left and right first outer plates, 9 is a pair of left and right second outer plates, 10 is an angle variable mechanism, 11 is a corner bottom plate, and 12 is a corner side plate. In the following description, the lower part of FIG. 1 is represented as the front, the upper part is the rear, the left is the left, and the right is the right.

  As shown in FIGS. 1 and 2, three arc-shaped rails 1 a having different radii from the center of the column 2 are provided on the upper surface of the base 1 symmetrically. In addition, a plurality of movable base fixing holes 1b are provided on the upper surface of the base 1 at predetermined angular intervals along two arc-shaped trajectories having different radii from the center of the support column 1, and in the first embodiment, left and right at intervals of 5 degrees. It is provided symmetrically. The movable base fixing hole 1b may be a screw hole into which the bolt B4 is directly screwed, or may be a through hole inserted when a nut is fastened to the end of the bolt B4.

  The support column 2 is composed of a shaft having a circular cross section, and is erected vertically on the upper surface of the base 1 as shown in FIG.

  The rotation guide 3 has a shape in which a part of the cylindrical shape is excluded vertically, or a shape in which a part of the cylindrical shape is excluded horizontally in accordance with the movable range of the bracket 5b of each inner plate 5 to be described later. Is erected on the upper surface of the base 1 so as to coincide with the center of the column 2. The rotation guide 3 serves as a guide when the outer surface of the rotation guide 3 is in contact with a curved surface 5a of each inner plate 5 to be described later and the inner plate 5 is rotated. In the first embodiment, the rotation guide 3 is shown with the upper end opened, but the upper end opening is closed with a circular plate as the rotation guide 3, and the upper end of the column 2 is supported by the circular plate. It is desirable to prevent 2 deflections.

  As shown in FIGS. 3 (A) and 3 (B), each movable base 4 includes a base body 4a having a rectangular longitudinal cross section that is open at the front and rear, and a rear extension 4b having a plane that is continuous with the bottom of the base body 4a. And have. Linear rails 4c that are parallel to each other are provided on the upper surface of the bottom of the base body 4a and the upper surface of the rear extension 4b. In addition, two brackets 4d each having a slanted long hole-like bolt insertion hole 4d1 are provided on the front surface of the bottom portion of the base body 4a with a space left and right. As can be seen from FIG. 1, the bolt insertion hole 4d1 of each bracket 4d corresponds to the movable base fixing hole 1b described above.

  Further, a total of five wheels 4e having a grooved roller 4e1 rotatably are provided at positions indicated by broken lines in FIG. 3A on the bottom surface of the bottom of the base body 4a. In FIG. 3A, the grooved roller 4e1 of the left two wheels 4e is movably engaged with the arc-shaped rail 1a outside the base 1, and the grooved roller 4e1 of the two central wheels 4e is The grooved roller 4e1 of one wheel 4e on the right side is movably engaged with the arcuate rail 1a on the inner side of the base 1. That is, each movable base 4 is disposed on the upper surface of the base 1 so that the upper surface of the base 1 can be moved along the rotation path of each inner plate 2.

  Each inner plate 5 has a rectangular plate shape, and is erected on the upper surface of the base body 4a of each movable base 4 so as to be perpendicular to the upper surface of the base 1, as shown in FIGS. ing. A curved surface 5 a that slidably contacts the outer surface of the rotation guide 3 is provided at the inner end of each inner plate 5. In addition, a total of three other ends of the L-shaped bracket 5b whose one end is rotatably supported by the support column 2 are fixed to the inner end of each inner plate 5 at intervals in the vertical direction. That is, each inner plate 5 can rotate about the support column 2, and each movable base 4 on which each inner plate 5 is erected can move along the same track along with each inner plate 5. .

  Each bottom plate 6 has a rectangular plate shape. As shown in FIGS. 1, 2, and 4, the upper surface of the base body 4 a of each movable base 4 is connected to the upper surface of the base 1 using bolts (not shown). Fixed to form a right angle. Each bottom plate 6 has a height adjusting portion 6a (see FIG. 4) at the lower portion thereof, and the height of the upper surface can be changed by changing the height of the height adjusting portion 6a.

  Each end plate 7 has an L-shaped cross section, and the upper end height thereof coincides with the upper end height of each inner plate 5 as shown in FIGS. 1, 2, and 4. A total of three elongated hole insertion holes 7a extending in the left-right direction are provided at intervals in the vertical direction in the plate-like portion that is in close contact with each inner plate 5 of each end plate 7. Further, a tread plate fixing hole (not shown) is provided in a portion of each inner plate 5 corresponding to each bolt insertion hole 7a. The face plate fixing hole may be a screw hole into which the bolt B7 is directly screwed, or may be a through hole inserted when a nut is fastened to the end of the bolt B7. That is, each end plate 7 is attached to each inner plate 5 so that the position in the left-right direction with respect to each inner plate 5 can be changed in a direction perpendicular to the upper surface of the base 1.

  Each first outer plate 8 has a rectangular plate shape, and as shown in FIGS. 1, 2 and 5, the first outer plate 8 has a narrow width extending 90 degrees at the lower end of the portion perpendicular to the upper surface of the base 1 and extending to the front side. It has a front extension 8a. Further, a total of four wheels 8b having grooved rollers 8b1 are rotatably provided on the lower surface of the front extension 8a of each first outer plate 8 at intervals in the front-rear and left-right directions. The grooved rollers 8b1 of the two outer wheels 8b are movably engaged with the linear rails 4c on the outer side of each movable base 4, and the grooved rollers 8b1 of the two inner wheels 8b are arranged on the movable bases 4. The inner linear rail 4c is movably engaged. That is, each first outer plate 8 is disposed on the movable base 4 so as to be able to move parallel to each inner plate 5.

  Each second outer plate 9 has a rectangular plate shape, and is attached to the front side of each first outer plate 8 so as to face each inner plate 5 in parallel, as shown in FIGS. The upper end height coincides with the upper end height of each inner plate 5.

  As shown in FIG. 5, a total of nine elongated bolt insertion holes 8a extending in the left-right direction are provided in each first outer plate 8 at intervals in the up-down and left-right directions. Further, a second outer plate fixing hole (not shown) is provided in a portion corresponding to each bolt insertion hole 8a of each second outer plate 9. The second outer plate fixing hole may be a screw hole into which the bolt B9 is directly screwed, or may be a through hole inserted when a nut is fastened to the end of the bolt B9. That is, each second outer plate 9 is attached to each first outer plate 8 so that the horizontal position relative to each first outer plate 8 can be changed in a direction perpendicular to the upper surface of the base 1.

  Incidentally, the “outer plate” in claim 1 corresponds to a combination of the first outer plate 8 and the second outer plate 9.

  As shown in FIGS. 1 and 2, the variable angle mechanism 10 includes two support bases 10 a and front and an operation head 10 b 1 that is rotatably supported by both support bases 10 a and parallel to the upper surface of the base 1. A screw rod 10b, a rectangular parallelepiped movable portion 10c screwed into the screw rod 10b with a screw hole (not shown), one end of which is rotatably connected to the upper and lower surfaces of the movable portion 10c, and the other end. Each of the inner plates 5 includes a pair of upper and lower links 10d that are rotatable and parallel to the upper surface of the base 1.

  According to the variable angle mechanism 10, when the screw rod 10b is rotated in a predetermined direction via the operation head 10b1 and the movable portion 10c is advanced, the angle formed by the pair of upper and lower links 10d is decreased and the inner side is increased. The plate 5 rotates inward at the same angle around the support column 2, and each movable base 4 moves along with the inner plate 5 along the rotation path of each inner plate 5. When the screw rod 10b is rotated in the opposite direction to the above through the operation head 10b1 to retract the movable portion 10c, the angle formed by the pair of upper and lower links 10d is increased, and each inner plate 5 is supported by the column. 2, the movable base 4 moves along with the inner plate 5 along the rotation path of the inner plate 5.

  Next, a procedure for manufacturing the corner retaining wall block CB1 (corner angle θ = 90 degrees) shown in FIG. 7 will be described with reference to FIGS.

  At the time of manufacture, as shown in FIG. 1, each bottom plate 6 after height adjustment is fixed to the upper surface of the base body 4 a of each movable base 4 so that one side thereof is in close contact with each inner plate 5. Also, each end plate 7 is temporarily fixed to each inner plate 5 using bolts B7, and each second outer plate 9 is temporarily fixed to each first outer plate 8 using bolts B9.

  Then, as shown in FIG. 6, the opening angle of each inner plate 5 is changed to 90 degrees by the angle variable mechanism 10. Since each movable base 4 moves together with each inner plate 5 along the rotation path of each inner plate 5, it faces the bolt insertion hole 4d1 and the bolt insertion hole 4d1 of the bracket 4d of each movable base 4 after the movement. Bolts B4 are respectively inserted from above into the movable base fixing holes 1b of the base 1 to be fixed, and the movable bases 4 are fixed to the base 1 using the bolts B4.

  Then, the 90-degree corner bottom plates 11 prepared in advance are fitted into the gaps between the bottom plates 6 and fixed to the bottom plates 6 using bolts (not shown). The corner bottom plate 11 used here has an L-shaped top surface and both end surfaces are in close contact with the end of each bottom plate 6, and the front surface is in close contact with the rotation guide 3 and each inner plate 5.

  Then, each second outer plate 9 is moved inward with respect to each first outer plate 8 to adjust the mutual gap dimension of each second outer plate 9, and a 90 ° corner side plate prepared in advance. 12 is inserted into the gaps between the second outer plates 9 and fixed to the second outer plates 9 using bolts (not shown). The corner side plate 12 used here is a flexible metal plate having a W-shaped cross section, and the vertical dimension of the corner side plate 12 matches the vertical dimension of the second outer plate 9.

  Then, each end plate 7 is fixed to each inner plate 5 using each bolt B7 at a position where each inner surface is in close contact with the end of each bottom plate 6, and each second outer plate 9 is fixed to each inner plate 5 using each bolt B9. The first outer plate 8 is fixed to the outer plate 8, and the second outer plate 9 is moved in parallel toward the inner plate 5 so that the inner surface of each second outer plate 9 is in close contact with the other side of the bottom plate 6.

  Then, each inner plate 5 and each first outer plate 9 are clamped by a plurality of mold clamping clamps (not shown) arranged on the upper side, the side side, the lower side, and the like.

  Then, concrete CO is placed in a space surrounded by the rotation guide 3, each inner plate 5, each bottom plate 6, corner bottom plate 11, each end plate 7, each second outer plate 9, and corner side plate 12, and is cured and cured. .

  After the cast concrete CO is hardened, the plurality of clamping clamps are removed, the corner side plate 12 is removed, and then each first outer plate 8 is moved in the opposite direction to separate each second outer plate from the product. If necessary, loosen the fixing of each end plate 7 and pull it away from the product, and then remove the product from the mold.

  As described above, the corner retaining wall block CB1 shown in FIG. 9, that is, the corner retaining wall block CB1 having the angle θ (corner angle) formed by the side plate portions CB1a of 90 degrees is manufactured.

  Although illustration is omitted, when a corner retaining wall block with a corner angle θ other than 90 degrees, that is, a corner retaining wall block with a corner angle θ of 90 degrees <θ <180 degrees, is also suitable for the target corner angle. If the corner bottom plate 11 and the corner side plate 12 are appropriately used, an intended corner retaining wall block can be manufactured by the same procedure as described above.

  Incidentally, since the corner side plate 12 can be deformed to some extent by using its flexibility, for example, a corner retaining wall block having a corner angle θ of 90 degrees ≦ θ ≦ 120 degrees and a corner angle θ of 120 degrees. ≦ θ ≦ 150 degrees corner retaining wall block and corner retaining wall corner angle θ of 150 degrees ≦ θ <180 degrees, three types of corner side plates 12 having different basic angles, for example, basic angles of 105 degrees and 135 degrees It is also possible to manufacture using three types of corner side plates 12 of 165 degrees.

  Thus, according to the above-mentioned formwork, the pair of left and right movable bases 4 are arranged on the upper surface of the base 1 so that the upper surface of the base 1 can be moved along the rotation path of each inner plate 5. 5 is arranged on the upper surface of each movable base 4, and each outer plate (first and second outer plates 8, 9) is arranged on the movable base 4 so as to be movable relative to each inner plate 5. Therefore, each outer plate (first and second outer plates 8 and 9) is set at a predetermined position by a simple operation of moving each outer plate (first and second outer plates 8 and 9) in parallel. The work load and work time at the time can be significantly reduced, whereby the desired corner retaining wall block can be manufactured with high accuracy and high efficiency.

  Moreover, according to the above-mentioned formwork, each outer side plate faces the 1st outer side plate 8 arrange | positioned at the movable base 4 so that it can translate with respect to each inner side plate 5, and each inner side plate 5 in parallel, In addition, since it is composed of the second outer plate 9 attached to the first outer plate 8 so that the lateral position relative to the first outer plate 8 can be changed, the opening angle of each inner plate 5 (= corner support) The mutual gap between the second outer plates 9 can be made the same regardless of the corner angle θ) of the wall block.

  In other words, in the former formwork in which the gap size between the outer plates changes with the change of the opening angle of each inner plate (= corner angle θ of the corner retaining wall block), the gap is increased when the gap size is increased. A high-strength corner side plate is required for manufacturing the block. In the above-described formwork, the second outer plate 9 of the second outer plate 9 is used regardless of the opening angle of each inner plate 5 (= corner angle θ of the corner retaining wall block). Since the mutual gap can be made the same, corner retaining wall blocks having various corner angles θ can be accurately manufactured only by preparing several types of corner side plates 12 that differ only in the basic angle.

[Second Embodiment]
8 to 12 relate to the second embodiment of the present invention. FIG. 8 is a top view of the mold, FIG. 9 is a left side view of the mold shown in FIG. 8, and FIG. FIG. 11 is a perspective view of a corner retaining wall block having a corner angle of 90 degrees, and FIG.

  First, the mechanism of the mold shown in FIG. 8 and FIG. 9 will be described.

The formwork shown in FIGS. 8 and 9 is different from the formwork shown in FIGS.
(1) A substantially triangular forward extension 5c is provided at the upper edge of each inner plate 5 at an angle of 45 degrees on the column 2 side and parallel to the upper surface of the base 1 in a line-symmetric manner. (2) The upper end opening of the rotation guide 3 is closed with a circular plate 3a, and the height of the rotation guide 3 is set to each inner plate 5 It is the same as the upper surface height of the front extension 5c or slightly higher than the upper surface height of the front extension 5c. (3) On the upper edge of each end plate 7, on the upper surface of the front extension 5c of each inner plate 5. The front extending portions 7b that are in contact with each other and parallel to the upper surface of the base 1 are provided. The other configuration of the mold shown in FIGS. 8 and 9 is the same as that of the mold shown in FIGS.

  Next, a procedure for manufacturing the corner retaining wall block CB2 (corner angle θ = 90 degrees) shown in FIG. 11 will be described with reference to FIGS.

  At the time of manufacture, as shown in FIG. 8, each bottom plate 6 after height adjustment is fixed to the upper surface of the base body 4 a of each movable base 4 so that one side thereof is in close contact with each inner plate 5. Also, each end plate 7 is temporarily fixed to each inner plate 5 using bolts B7, and each second outer plate 9 is temporarily fixed to each first outer plate 8 using bolts B9.

  And as shown in FIG. 10, the opening angle of each inner side board 5 is changed into 90 degree | times by the angle variable mechanism 10, and the front extension part 5c of each inner side board 5 is contact | adhered mutually. Since each movable base 4 moves together with each inner plate 5 along the rotation path of each inner plate 5, it faces the bolt insertion hole 4d1 and the bolt insertion hole 4d1 of the bracket 4d of each movable base 4 after the movement. Bolts B4 are respectively inserted from above into the movable base fixing holes 1b of the base 1 to be fixed, and the movable bases 4 are fixed to the base 1 using the bolts B4.

  Then, the 90-degree corner bottom plates 11 prepared in advance are fitted into the gaps between the bottom plates 6 and fixed to the bottom plates 6 using bolts (not shown). The corner bottom plate 11 used here has an L-shaped top surface and both end surfaces are in close contact with the end of each bottom plate 6, and the front surface is in close contact with the rotation guide 3 and each inner plate 5.

  Then, each second outer plate 9 is moved inward with respect to each first outer plate 8 to adjust the mutual gap dimension of each second outer plate 9, and a 90 ° corner side plate prepared in advance. 12 is inserted into the gaps between the second outer plates 9 and fixed to the second outer plates 9 using bolts (not shown). The corner side plate 12 used here is a flexible metal plate having a W-shaped cross section, and the vertical dimension of the corner side plate 12 matches the vertical dimension of the second outer plate 9.

  Then, each end plate 7 is fixed to each inner plate 5 using each bolt B7 at a position where each inner surface is in close contact with the end of each bottom plate 6, and each second outer plate 9 is fixed to each inner plate 5 using each bolt B9. The first outer plate 8 is fixed to the outer plate 8, and the second outer plate 9 is moved in parallel toward the inner plate 5 so that the inner surface of the second outer plate 9 is in close contact with the other side of the bottom plate 6.

  Then, the auxiliary support plate 13 prepared in advance is fixed to the front extension 5c of each inner plate 5 using bolts B13 so that both ends thereof are in close contact with the inner surface of the front extension 5c of each test plate 5, and each inner plate 5 is fixed. The first outer plate 9 and the inner plates 5 are clamped by a plurality of mold clamping clamps (not shown) arranged on the upper side, the side side, the lower side and the like.

  Then, concrete CO is placed and cured in a space surrounded by the rotation guide 3, each inner plate 5, each bottom plate 6, corner bottom plate 11, each end plate 7, each second outer plate 9, corner side plate 12, and auxiliary end plate 13. And let it harden.

  After the cast concrete CO is hardened, the plurality of clamping clamps are removed, the corner side plate 12 is removed, and then each first outer plate 8 is moved in the opposite direction to separate each second outer plate from the product. Then, the auxiliary support plate 13 is removed, and if necessary, the fixing of each support plate 7 is loosened and separated from the product, and then the product is taken out of the formwork.

  As described above, the corner retaining wall block CB2 shown in FIG. 11, that is, the corner retaining wall block CB2 having an angle θ (corner angle) formed by the side plate portions CB2a of 90 degrees and the bottom plate portion CB2b between the both side plate portions CB2a. Is manufactured.

  Although illustration is omitted, when a corner retaining wall block with a corner angle θ other than 90 degrees, that is, a corner retaining wall block with a corner angle θ of 90 degrees <θ <180 degrees, is also suitable for the target corner angle. The corner bottom plate 11 and the corner side plate 12 are used as appropriate, and an auxiliary wife plate 13 (see FIG. 12) suitable for a target corner angle is used as appropriate, and a triangular shape is formed between the front extensions 5c of the inner plates 5. If the auxiliary inner plate 14 (see FIG. 12) having a shape suitable for the gap is fitted into the gap and fixed with a bolt (not shown), the desired corner retaining wall block can be manufactured by the same procedure as described above. .

  Incidentally, since the corner side plate 12 can be deformed to some extent by using its flexibility, for example, a corner retaining wall block having a corner angle θ of 90 degrees ≦ θ ≦ 120 degrees and a corner angle θ of 120 degrees. ≦ θ ≦ 150 degrees corner retaining wall block and corner retaining wall corner angle θ of 150 degrees ≦ θ <180 degrees, three types of corner side plates 12 having different basic angles, for example, basic angles of 105 degrees and 135 degrees It is also possible to manufacture using three types of corner side plates 12 of 165 degrees.

  Thus, according to the above-mentioned formwork, the pair of left and right movable bases 4 are arranged on the upper surface of the base 1 so that the upper surface of the base 1 can be moved along the rotation path of each inner plate 5. 5 is arranged on the upper surface of each movable base 4, and each outer plate (first and second outer plates 8, 9) is arranged on the movable base 4 so as to be movable relative to each inner plate 5. Therefore, each outer plate (first and second outer plates 8 and 9) is set at a predetermined position by a simple operation of moving each outer plate (first and second outer plates 8 and 9) in parallel. The work load and work time at the time can be significantly reduced, whereby the desired corner retaining wall block can be manufactured with high accuracy and high efficiency.

  Moreover, according to the above-mentioned formwork, each outer side plate faces the 1st outer side plate 8 arrange | positioned at the movable base 4 so that it can translate with respect to each inner side plate 5, and each inner side plate 5 in parallel, In addition, since it is composed of the second outer plate 9 attached to the first outer plate 8 so that the lateral position relative to the first outer plate 8 can be changed, the opening angle of each inner plate 5 (= corner support) The mutual gap between the second outer plates 9 can be made the same regardless of the corner angle θ) of the wall block.

  In other words, in the former formwork in which the gap size between the outer plates changes with the change of the opening angle of each inner plate (= corner angle θ of the corner retaining wall block), the gap is increased when the gap size is increased. A high-strength corner side plate is required for manufacturing the block. In the above-described formwork, the second outer plate 9 of the second outer plate 9 is used regardless of the opening angle of each inner plate 5 (= corner angle θ of the corner retaining wall block). Since the mutual gap can be made the same, corner retaining wall blocks having various corner angles θ can be accurately manufactured only by preparing several types of corner side plates 12 that differ only in the basic angle.

It is a top view of a formwork concerning a 1st embodiment of the present invention. It is a left view of the mold shown in FIG. FIG. 2 is a top view and a front view of the movable base shown in FIG. 1. It is a rear view of the end plate shown in FIG. FIG. 2 is a rear view of the outer plate shown in FIG. 1. It is procedure explanatory drawing of block manufacture. It is a perspective view of a corner retaining wall block with a corner angle of 90 degrees. It is a top view of the formwork which concerns on 2nd Embodiment of this invention. It is a left view of the mold shown in FIG. It is procedure explanatory drawing of block manufacture. It is a perspective view of a corner retaining wall block with a corner angle of 90 degrees. It is another procedure explanatory drawing of block manufacture.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Base, 2 ... Support | pillar, 4 ... Movable base, 5 ... Inner plate, 6 ... Bottom plate, 7 ... Tail plate, 8 ... First outer plate, 9 ... Second outer plate, 11 ... Corner bottom plate, 12 ... Corner side plate, CB1, CB2 ... Corner retaining wall block.

Claims (2)

A base, a support column erected on the upper surface of the base, a pair of left and right inner plates rotatably provided on the support column, a pair of left and right outer plates arranged at intervals from each inner plate, and an outer plate A corner side plate that is mounted in the gap, a pair of left and right bottom plates that are disposed so as to be sandwiched between each inner plate and each outer plate, a corner bottom plate that is mounted in a gap between the bottom plates, and each inner plate A corner retaining wall block manufacturing form comprising a end plate and a end plate disposed between the end portions of each outer plate,
A pair of left and right movable bases arranged on the upper surface of the base so that the upper surface of the base can be moved along the rotation path of each inner plate;
Each inner plate is erected on the upper surface of each movable base, and each outer plate is arranged on the movable base so as to be able to translate relative to each inner plate.
A formwork for manufacturing a corner retaining wall block. Each outer plate faces the first outer plate arranged on the movable base so that it can move in parallel with each inner plate, faces each other in parallel with each inner plate, and can change the position in the left-right direction with respect to the first outer plate. And a second outer plate attached to the first outer plate,
The form for manufacturing a corner retaining wall block according to claim 1 .

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