JP3704191B2 - Variable mold frame for L-shaped retaining wall corner block molding - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a molding form (hereinafter abbreviated as “formwork”) of an L-shaped retaining wall corner block (hereinafter abbreviated as “block”) made of precast concrete. The present invention relates to a variable mold frame for forming an L-shaped retaining wall corner block that can correspond to various corner angles with one mold frame.
[0002]
[Problems to be solved by the invention]
The L-type retaining wall block made of precast concrete has been widely used in the construction of retaining walls with sloped earth retaining. Conventionally, the construction of the corner part is done by cutting the end of each block at a predetermined angle on site. A method has been adopted in which these are joined at a predetermined corner angle.
[0003]
However, this method has a problem that it is difficult to secure a sufficient strength to withstand concentrated earth pressure.
For this reason, it is conceivable to form a dedicated block for each predetermined corner angle. However, preparing and placing each of these forming molds in advance is considered from the viewpoint of economy and securing of the placement place in consideration of the frequency of use. It was very inefficient.
[0004]
Therefore, in recent years, a variable mold frame for forming an L-shaped retaining wall corner block has been proposed in which a variable mold frame can be used to form a block having various corner angles with a single mold frame.
[0005]
For example, (1) No. Sho 63-50085 and (2) No. 4-15445.
In these inventions, a center post or a plurality of struts (hereinafter referred to as “struts”) is placed and fixed on a base stand, and a pair of inner side surfaces are provided on both wings (or left and right) around the struts. The forming frame is connected and placed, and the inner surface forming frame is appropriately moved and set so as to have a dihedral angle (or an opening angle) adjusted to a predetermined corner angle.
[0006]
However, this has the following problems. In other words, since it is necessary to always keep the column and the like vertical with considerable accuracy, it is necessary to attach them firmly. On the other hand, the verticality is difficult to maintain due to repeated use for many years, and the movement of the inner side forming frame is often hindered. Moreover, since the attachment is hard, the correction is not easy.
[0007]
On the other hand, the change of the corner angle is not finely engraved, and is in units of 5 ° to 10 °, and there is little demand for moving the inner side surface forming frame linearly (continuously), but it is rather effective in linear movement. The pillars were not very important. On the other hand, it is not only the case that the shape retaining force and supporting force of the inner formwork is distributed and burdened as a whole, but it can be made lighter and more durable. This was more effective.
[0008]
In addition, such blocks tend to become larger (for example, 2m square or more), and the formwork for this (for example, move from formmakers to concrete product forming factories) However, the presence of a support post and the like assembled at the stage of shipment from the securing of strength has also made it difficult to carry.
[0009]
【the purpose】
Therefore, the present invention has been made paying attention to such problems, and the object of the present invention is to form the constituent frame bodies of the respective molds independently, and to assemble them at the time of use. Providing a variable formwork for forming L-type retaining wall corner blocks that can be easily maintained and maintained by forming a formwork corresponding to each corner angle and simplifying disassembly after use. To do.
[0010]
In addition, the inventor of the present application, for the same purpose, designated “L-shaped retaining wall corner block forming form” as utility model registration No. 3017935 (application date: April 20, 1995) that has already been released. I have applied. The present invention is configured in such a manner that it can be easily detached and disassembled, but it is the same as the above-described device. However, by improving the connecting movable part of the inner side surface forming frame, the 2 on the base at the time of assembly is improved. It is configured so that the movement for setting the face angle is easier.
[0011]
[Means for Solving the Problems]
To achieve the above object, the L-shaped retaining wall corner block forming variable frame according to the present invention is connected to a pair of blades with a hinge-like connecting movable part that is pivotably fitted on the vertical axis, and the upright plate detachably and Ru are installed moved fixably desired on the base with a dihedral angle with the lower end portion of the coupling movable portion is pivotally held on the base, a substantially horizontally from the upper end of the upstanding plate An inner surface forming frame having a substantially inverted L shape from a horizontal plate extending in the direction opposite to the direction in which the horizontal plate extends from the inner surface forming frame. And a pair of outer surface molding frames that are installed so as to be movable and fixed so as to be pivotable at positions facing the coupling movable portion, and an upper end surface that is detachably attached to the bottom side of the space. It closes the forming frame and the open part of both wings in the space. It is a reverse L-shaped small surface molding frame extending horizontally along the horizontal plate of the inner surface molding frame together with the attached, to the horizontal distal end portion of the both wings pair of small surface molding frame contact, and said inner molding frame An end face forming frame attached so as to be bridged over the upper surface of the wing, and a lid plate that is spanned to cover an opening formed by a horizontal plate of the pair of inner surface molding frames of the pair of both wings. To do.
[0012]
In particular, in the configuration of the connecting movable part of the inner surface forming frame described above , the upper and lower divided bodies are attached to the inner surface forming frame on one side among the columnar divided bodies divided into the upper, middle and lower parts, The middle divided body is attached to the inner side forming frame on the other side, and the joint surfaces of the divided bodies are connected so as to be concavo-convexly connected so as to be pivotally pivotable on the same axis.
[0013]
In addition, you may make it attach a makeup | decoration shaping | molding board to the surface by the side of the space | interval space of an inner surface molding frame so that attachment or detachment is possible.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Next, the specific embodiment of the variable form according to the present invention will be described in detail below with reference to the drawings.
[0015]
FIG. 1 and FIG. 2 are plan views showing the entire form of the present embodiment. FIG. 1 shows a case where it is set for block molding with a corner angle of 90 degrees, and FIG. 2 is for block molding with a corner angle of 120 degrees. Is set to. FIG. 3 shows (A) a plan view, (B) a side view, and (C) a front view of the outer surface forming frame of the mold. FIG. 4 is a perspective view showing a block formed by the mold shown in FIG. In the drawing, the block 9 is drawn in accordance with the construction state, but the top and bottom are reversed when the block 9 is taken out from the mold as it is. FIG. 5 is an enlarged plan view showing the connecting movable part.
[0016]
The main components of the mold frame 1 of this embodiment are an outer surface molding frame 2, an inner surface molding frame 3, an upper surface molding frame 4, a small edge molding frame 5, an end surface molding frame 6, a cover plate 7, and these. It consists of a base 8 as a mounting base. These will be described in turn below.
[0017]
The outer side surface forming frame 2 is a reinforcing member in which a forming plate 20 for forming the outer side surface 90 of the block 9 is detachably held on the surface on the inner side surface forming frame 3 side, and the back side is attached vertically and horizontally at appropriate intervals. The ribs 21 are formed in a standing box-like frame, and the two bodies are detachably and movably disposed on the base 8. The two outer surface forming frames 2 and 2 are configured as a pair of left and right blades (a pair of left and right) having a connecting movable portion 22 that rotatably connects the end sides 2a and 2b to each other.
[0018]
Further, the molded plate 20 is a decorative molded plate in which a concavo-convex pattern (for example, natural stone-like pattern) with various tastes is formed on the surface thereof, and its attachment is established on the outer surface molding frame 2. A bolt 24 penetrating the long hole 23 is attached so as to enable movement adjustment fixation in the left-right direction. And the edge parts 20a and 20b of this shaping | molding board 20 are connected so that a mutual surface may continue over the edge part full length by the connection band 25. FIG. The connecting band 25 is a flexible member that can be bent, and is made of, for example, a resin material such as urethane rubber or a metal plate.
[0019]
The pair of outer forming frames 2 and 2 on both wings are moved in accordance with guide grooves 80 on the base 8 and while maintaining a certain distance D from an inner surface forming frame 3 to be described later. An angle α (hereinafter referred to as “dihedral angle”) is set. This dihedral angle becomes the corner angle β of the block 9 which is a molded product. Along with this movement, the connecting movable portion 22 is rotated to bend the connecting band 25 and the surface of the molding plate 20 is adjusted to be a substantially vertical surface on the base 8. The outer surface forming frame 2 is fixed by fastening means 26 disposed on the lower side.
[0020]
Next, the configuration of the inner side surface forming frame 3 will be described. FIG. 6 is an exploded perspective view showing a connection process of the inner side surface forming frame 3. FIG. 7 shows the state before the connection movable part is connected in (A) a plan view and (B) front view, and FIG. 8 shows the connection state in (A) plan view and (B) front view. It is. FIG. 9 is an enlarged perspective view showing the main part of the coupled movable part, and FIG. 10 is an enlarged side view of the major part showing the relationship with the base at the lower end of the coupled movable part.
[0021]
The inner side surface forming frame 3 extends substantially horizontally in a direction opposite to the outer side surface forming frame 2 from a standing plate 30 which faces the forming plate 20 of the outer side surface forming frame 2 with a predetermined distance D, and a standing plate 30. The horizontal plate 31 is substantially inverted L-shaped. Further, a corner cut surface 32 is formed at a connection portion between the standing plate 30 and the horizontal plate 31.
[0022]
With this configuration, the inner surface 92 of the block 9 is formed by the upright plate 30, the bottom inner surface 93 is formed by the horizontal plate 31, and the corner inclined surface 94 is formed by the corner cut surface 32. Set by
[0023]
Then, the two individual inner side surface forming frames 3 are vertically arranged on the base 8 such that the corresponding forming plate 20 and standing plate 30 of the outer side surface forming frame 2 face each other with a distance D therebetween. And the edge part 30a, 30b of the standing board 30 is connected so that rotation is possible, and it is comprised by both wing | blade pair (left-right pair).
[0024]
As shown in the figure, the connecting movable part 33 that performs such connection has a hinge shape that is pivotably fitted on the vertical axis, and is divided into three cylindrical parts 34u that are divided into upper, middle, and lower parts, 34m and 34d, the upper and lower divided bodies 34u and 34d are attached to the end side 30a of the upright plate 30 of the inner surface forming frame 3 on one side, and the middle divided body 34m is attached to the inner surface forming frame 3 on the other side. It is attached to the end side 30b of the upright plate 30. And each joint surface 35 and 36 of each division | segmentation body 34 carries out uneven | corrugated fitting, and it is made to pivot-rotate on the same axis | shaft.
[0025]
That is, the upper divided body 34u is formed with a circular convex portion 35a at the center of the lower end joint surface 35u, and a circular concave portion 35b that fits and fits is formed on the upper end joint surface 35m of the middle stage divided body 34m. . In the lower divided body 34d, a circular recess 36b is formed at the center of the upper joint surface 36d, and a circular convex part 36a that fits and fits is formed on the lower joint surface 36m of the middle split body 34m. Note that the upper divided body 34u is detachable by mounting bolts 34b.
[0026]
Further, in each of the end portions 30a and 30b that are in contact with the side surface of each divided body 34, concave portions 37u, 37m, and 37d that conform to the convex curvature of the outer periphery of the divided body 34 are formed.
[0027]
Furthermore, a circular convex portion 34a having a truncated cone shape is formed on the lower end surface of the lower divided body 34d. As shown in FIG. 10, the circular convex portion 34 a is pivotally fitted to a circular concave-shaped pivoting port 82 of the pivoting plate 81 that is disposed and fixed at a predetermined position on the base 8. As a result, the connecting movable portion 33 is slidably rotated about the pivot opening 82 as an axis.
[0028]
A screw hole 34h for attaching a cover plate 7 described later is formed on the upper end surface of the upper divided body 34u.
In addition, guide support bodies 38 and 38 are attached to the upper and lower positions of the end side portion 30b of the other upright plate 30, respectively. As shown in FIG. 9, a flat mounting plate 38a is attached to the guide support 38 on the inner surface side of the end side portion 30b in the vicinity of the divided body 30u, and from the surface of the mounting plate 38a, the divided body 34u A guide 38b having an arc-shaped slit 38s along the outer periphery is integrally formed. The length of the arc of the guide 38b is formed such that the central angle is approximately 90 degrees.
[0029]
A fastening bolt 39 that is slidably passed through the slit 38s and screwed into the side surface of the divided body 34u is disposed in the guide 38b. In the middle of the rod of the fastening bolt 39, a flange 39f having a diameter larger than the interval of the slits 38s is attached and fixed.
[0030]
Next, the upper end face forming frame 4, the small edge face forming frame 5, and the end face forming frame 6 will be described. FIG. 11 is a perspective view showing these.
The upper end surface forming frame 4 is for forming the upper end surface 95 of the block 9 and is formed in a long box shape having a rectangular cross section, and the forming plate 20 of the outer surface forming frame 2 and the inner side surface forming frame. 3 is disposed on the lower side (in FIG. 11) of the space S with respect to the three standing plates 30, and is attached to the base 8 in a detachable manner. Two of the upper end surface forming frames 4 are respectively arranged in the space S between both wings and are rotatably connected at positions corresponding to the connecting movable portions of the outer surface forming frame 2 and the inner surface forming frame 3. . Then, the legs are opened horizontally according to the setting movement of the dihedral angle of the mold, and the upper surface of the gap generated thereby is covered with the closing plate 40. Further, the height of the side wall 91 of the block 9 is set by setting the height of the upper end surface forming frame 4.
[0031]
Next, the small edge surface forming frame 5 is arranged in the vicinity of both the left and right blades of the space S, and has a rectangular parallelepiped closing plate 50 that closes both blades open side of the space S, and the upper end portion thereof. It is comprised from the standing board 51 with the predetermined | prescribed height extended along the horizontal plate 31 of the said inner surface molding frame 3 at a substantially right angle. The closing plate 50 and the upright plate 51 are formed in a substantially inverted L shape, and the upright plate 51 is in a positional relationship perpendicular to the forming plate 21 of the outer surface forming frame 2. The small edge surface forming frame 5 is attached and fixed to the outer surface forming frame 2 and the inner surface forming frame 3 by being detachable by fastening means (not shown) such as bolts and nuts.
[0032]
By attaching the small edge surface forming frame 5, the closing plate 50 forms the side wall small surface 96 of the block 9, and the standing plate 51 forms the bottom small edge surface 97, respectively. Further, the width of the side wall 91 and the size of the bottom are determined by setting the mounting position in the space S.
[0033]
Next, the end surface forming frame 6 forms a long box-like body having substantially the same height as the standing plate 51. Then, the standing surface 60 of the end forming frame 6 is brought into contact with the horizontal front end portion 52 of the small edge surface forming frame 5 and is laid over the horizontal plate 31 of the pair of inner surface forming frames 3 of both wings. Installed. The end face forming frame 6 is appropriately moved horizontally on the horizontal plate 31 in the direction of the connecting movable part or in the opposite direction in accordance with the movement of the small end face forming frame 5, and is fixed at an appropriate position.
[0034]
This end forming frame 6 forms an end surface 98 obtained by cutting off the bottom edge surface 97 of the block 9.
Finally, the cover plate 7 has a polygonal plate shape as shown in FIG. 12, overlaps (contacts) the horizontal plates 31 of the pair of inner surface forming frames 3 of the pair of blades, and bridges them. Installed on. Mounting of the cover plate 7 at the distal end 70 of FIG. 12, the upper split body 34u is performed by bolting to the screw hole 34h, which is opened on the upper end face of, and the long holes 31h which was opened in the horizontal plate 31 Is carried out by a bolt 71 that is threaded through from the lower surface. The lid plate 7 is formed to have a size extending from the standing plate 51 of the small-end surface forming frame 5 and the lower surface of the end surface forming frame 6.
[0035]
[Operation of this embodiment]
This embodiment operates as follows by being configured as described above.
First, the inner surface forming frame 3a to which the lower divided body 34d is attached is positioned so that the circular convex portion 34a on the lower end surface is fitted to the pivot opening 82 on the base 8, while Mounted and fixed. At this time, the upper divided body 34u is in a state removed from the end side portion 30a.
[0036]
Then, the other inner side surface forming frame 3b is fitted to this so that the columnar middle divided body 34m and the lower divided body 34d are coaxial. Thereafter, the upper divided body 34u is fitted to the middle divided body 34m so as to be coaxial. In addition, when this fitting is performed, lubrication is performed on each of the joint surfaces 35 and 36, and an oil seal 35c and a thrust bearing 36c are attached to each of the joint surfaces 35 and 36, whereby smoother sliding rotation can be performed. Further, the guide support 38 may be attached in advance during the fitting, or may be attached after the fitting, and is selected in consideration of workability as appropriate.
[0037]
After connecting the inner side surface forming frames 3a and 3b of both wings, the inner side surface forming frame 3b on the other side is moved along the guide groove 80 on the base 8, and each corner β of the block 9 to be formed is predetermined. The combined dihedral angle α (opening angle) is set and fixed upright.
[0038]
At this time, the fastening bolt 39 having the tip screwed to the divided body 34 slides and moves in the slit 38s of the guide support body 38 in accordance with the movement of the inner surface forming frame 3 to open the legs. At the corner, the fastening bolt 39 is tightened and fixed until the flange 39f contacts the guide 38b.
[0039]
Thereafter, a predetermined lid plate 7 is attached to the upper surface of the horizontal plate 31 so as to fit the pair of inner side surface forming frames 3, and the upper end surface is formed so as to contact the lower portion of the standing plate 30. A frame 4 is attached to both wings.
[0040]
Next, the small edge surface forming frame 5 is attached and fixed to the inner surface forming frame 3 according to the width of the side wall 91 of the predetermined block 9, and the end surface forming frame 6 is attached and fixed accordingly. It will be in the state shown in.
[0041]
Finally, a pair of outer surface molding frames 2 of both wings are erected on the base 8 so as to face the upright plate 30 of the inner surface molding frame 3 and fixed by the fastening means 26.
After being assembled in this manner, the concrete liquid is poured into the section surrounded by the outer surface molding frame 2, the inner surface molding frame 3, the small edge molding frame 5, and the end surface molding frame 6 by a normal method. Then, the desired block 9 is formed by curing.
[0042]
【effect】
With the above configuration, the present invention has the following effects.
Since the outer forming frame and the inner forming frame of the pair of both wings are individually configured to be movable and fixed on the base, one mold frame that can be set to various dihedral angles It is possible to accurately correspond to blocks having various corner angles.
[0043]
In addition, as a feature of the present invention, since the movable movable part of the inner side surface forming frame is configured in a detachable hinge shape, the inner side surface forming frames of both wings can be handled separately and connected. In this case, the setting movement of the dihedral angle can be easily and accurately performed around the connecting movable portion.
[0044]
In addition, the fact that they are independent of each other has an effect that the disassembly after use can be simplified and maintenance can be facilitated.
Furthermore, since the support column is not fixed on the base, there is an effect that the repair and replacement for each independent forming frame can be easily and easily performed. In addition to being easy to assemble and disassemble, in addition to being able to reduce the exclusive space when not in use, it is not bulky during transportation and movement, and is very effective in terms of transportation efficiency.
[Brief description of the drawings]
FIG. 1 is a plan view showing a case where a mold according to the present embodiment is set for block molding with a corner angle of 90 degrees.
FIG. 2 is a plan view showing a case where the present embodiment mold is set for block forming with a corner angle of 120 degrees.
3A is a plan view, FIG. 3B is a side view, and FIG. 3C is a front view of an outer surface forming frame of the mold according to the present embodiment.
4 is a perspective view showing a block formed by the mold shown in FIG. 1. FIG.
FIG. 5 is an enlarged cross-sectional view showing a coupled movable part.
FIG. 6 is an exploded perspective view showing a connecting process of inner side surface forming frames.
7A is a cross-sectional view and FIG. 7B is a front view showing a state before the connection movable part of the inner side surface forming frame is connected.
FIGS. 8A and 8B are a cross-sectional view and a front view, respectively, illustrating a connection state of a connection movable portion of an inner side surface forming frame.
FIG. 9 is an enlarged perspective view showing a main part of a connecting movable part.
FIG. 10 is an enlarged side view of a main part showing a relationship with a base at a lower end part of a connecting movable part.
FIG. 11 is a perspective view showing an upper end face forming frame, a small edge face forming frame, and an end face forming frame 6;
12A is a plan view and FIG. 12B is a longitudinal sectional view showing a cover plate. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Mold frame 2 ... Outer surface molding frame 20 ... Molding plate 21 ... Reinforcement rib 22 ... Connection movable part 23 ... Long hole 24 ... Bolt 25 ... Connection belt 26 ... Fastening means 3 ... Inner side surface forming frame 30 ... Standing plate 31 ... Horizontal plate 32 ... Corner cut surface 33 ... Connection movable part 34 ... Divided body 35 ... Joining Numeral 36: Joint 37: Recess 38: Guide support 39 ... Fastening bolt 4 ... Upper end surface forming frame 40 ... Closing plate 5 ... Small end surface forming frame 50 ... -Closing plate 51 ... Standing plate 52 ... Horizontal tip 6 ... End face forming frame 60 ... Standing surface 7 ... Cover plate 70 ... Tip 71 ... Bolt 8 ..Base 80 ... Guide groove 81 ... Pivoting plate 82 ... Pivoting port 9 ... Block 90 ... Outside surface 91 ... Side wall 92 ... Inside Surface 93 ... bottom inner surface 94 ... corner slope 95 ... upper surface 96 ... side wall small surface 97 ... bottom small surface 98 ... end surface

Claims (2)

The upper and lower divided bodies are attached to one side, and the middle divided body is attached to the other side, and the joint surface of each divided body is fitted with unevenness. A hinged connecting movable part that is pivotably connected on the same axis is connected to the pair of blades, and the lower end of the connecting movable part is pivotally held on the base and has a desired dihedral angle. and upright plate onto the base Ru installed detachable and mobile fixably, and the inner surface molding frame forming a substantially inverted L-shape and a horizontal plate extending substantially horizontally from the upper end of the standing plate,
The horizontal plate of the inner surface forming frame extends in the opposite direction, is installed on the base so as to be detachable and movable fixed with a predetermined space from the standing plate , and is rotated at a position facing the connecting movable portion. A pair of outer surface forming frames that can be connected to each other;
On the bottom side of the spacing space, an upper end surface forming frame attached detachably,
An inverted L-shaped small edge surface forming frame which is attached so as to close both open portions of the space and extends horizontally along the horizontal plate of the inner surface forming frame;
An end face forming frame that is in contact with a horizontal front end of the pair of small edge face forming frames of the both wings and is attached so as to be bridged over the upper surface of the inner forming frame;
A lid plate spanned over the opening formed by the horizontal plate of the pair of inner surface molding frames of the pair of blades;
A variable mold frame for forming an L-shaped retaining wall corner block.   The variable mold frame for forming an L-shaped retaining wall corner block according to claim 1, wherein a decorative molded plate is detachably attached to a surface of the inner side surface forming frame on the space side.

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