JP3781096B2 - L-shaped block formwork - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an L-shaped block form for manufacturing an L-shaped concrete block mainly used as a retaining wall in a state of being laid down so that a planar shape is L-shaped.
[0002]
[Prior art]
As shown in FIG. 8, the L-shaped block mainly used for the retaining wall has a substantially L-shaped side surface by a wall plate portion 22 and a bottom plate portion 23. Such an L-shaped block differs in the required height of the wall plate portion depending on the place of construction. That is, when used as a relatively low retaining wall, a short one as shown by a chain line A, and when used on an inclined ground, a block whose upper part is inclined as shown by a chain line B is required. However, since it is difficult to make all of these many types of formwork, a simple modification is made to one type of formwork so that a short block and a block with an oblique upper part can be manufactured.
[0003]
FIG. 9 is a plan view of a conventional mold 30, and FIG. 10 is a side view of the mold 30 with the support plate 32 a removed. The form frame 30 has two bottom plates 31 and 32 having a substantially L-shaped planar shape arranged on the base 38 at a predetermined interval, a bottom plate 33 for closing the bottom, and an end for closing. End plates 34 and 35 are provided, and the inside surrounded by the dam plates 31 and 32, the bottom plate 33 and the end plates 34 and 35 is a cavity. The upper part of the cavity is an opening, and concrete is poured through this opening. The weir plate 31, the bottom plate 33, and the end plates 34 and 35 are fixed to the base 38, but the weir plate 32 is divided into the weir plates 32a and 32b, and the mold plate 32a is removed when the molded block is removed. The outside is pulled out, and the plate 32b is rotated by a hinge 39 to open the mold. However, the mode of mold opening is not limited to this, and there are various methods.
[0004]
When forming a short block, an auxiliary end plate 36 is attached as shown in FIGS. Reference numeral 37 denotes a reinforcing material. If the auxiliary end plate is attached obliquely, a block having an oblique upper part can be manufactured. Such auxiliary end plates and reinforcing materials are generally fixed to the dam plates 31 and 34 by welding or the like.
[0005]
[Problems to be solved by the invention]
Since the conventional formwork had to be modified to attach an auxiliary end plate or a reinforcing material each time a block having a different height was manufactured, time and cost were required each time. Moreover, since the auxiliary end plate and the reinforcing material once attached must be removed, not only is it complicated, but the formwork body is damaged due to repeated welding attachments and removals by cutting. There was a problem that it deteriorated and durability was lowered.
[0006]
The present invention has been made in order to provide a formwork that can easily manufacture a short one or an L-shaped block whose upper part is inclined.
[0007]
[Means for Solving the Problems]
The present invention is closed and two dams 2,3 planar shape disposed opposite at a predetermined distance form the outline L-shaped, a bottom plate 4 which closes the bottom between these dam plates 2, an end portion In an L-shaped block mold for filling concrete into a cavity surrounded by the slats 2 and 3 , the bottom plate 4 and the end plates 5 and 6 , the end plate 5 is squeezed. The support means 9 is movable in the horizontal direction between the plates 2 and 3, and the support means 9 is provided so as to be adjustable in length with respect to the end plate 5 from the reaction force member 8 provided on the back side of the end plate 5. The means 9 supports the end plate 5 moved to a desired position , and the bottom plate 4 at the side portion of the movable end plate 5 is used as a bottom plate moving portion 4a having the same width as the end plate 5 as the bottom plate 4. That the end plate 5 and the bottom plate moving portion 4a are integrated and move together. It is a form of the characteristic L-shaped block .
[0008]
In the present invention, it is possible to move in the horizontal direction between two L-shaped weir plates with end plates facing each other. When the end plate is moved inward, a short L-shaped block can be formed, and when the end plate is moved outward, a tall L-shaped block can be formed. Since the reaction force member is provided on the back side of the end plate, the support means is provided from the reaction force member so that the length can be adjusted with respect to the end plate, and the support means supports the end plate moved to a desired position. It is firmly fixed against the pressure of concrete. As examples of such support means, various mechanisms such as a metal pipe whose length is adjusted by a milling chuck, a rack gear whose length is adjusted by a pinion gear, and a stopper can be used.
[0009]
The bottom plate of the side part of the end plate that can be moved is formed separately from other parts of the bottom plate as a bottom plate moving part with the same width as the end plate, and the end plate and the bottom plate moving part are integrated and moved together Can be configured to By doing in this way, it can prevent that concrete leaks from between an end plate and a baseplate moving part. Further, when the connecting portion between the end plate and the bottom plate moving portion is rotated so that the end plate can be inclined, an L-shaped block having an inclined upper end can be formed. This can be achieved by attaching rubber or a thin metal plate to the joint between the end plate and the bottom plate moving part.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Next, the present invention will be described in detail based on the drawings showing the embodiments. 1 is a plan view of a mold 1 of an L-shaped block of the embodiment, FIG. 2 is a plan view of a mold 1 in an open state, and FIG. 3 is a plan view of an end plate 5 of the mold 1 moved inward. 4 is a side view showing the mold plate 1 with the plate 3a removed, FIG. 5 is a side view showing the end plate 5 being moved and tilted, and FIG. 6 is a side view showing the X-X of FIG. FIG. 7 is a sectional view of a connecting portion between the end plate 5 and the bottom plate moving portion 4a. In these drawings, the reinforcement member and the fastening member of the mold are almost omitted.
[0011]
The formwork 1 includes a base 7, L-shaped plates 2 and 3, a bottom plate 4, and end plates 5 and 6. The dam plate 2 fixed on the base 7 is formed by bending an iron plate into a substantially L shape, and further bending one end thereof to form an end plate 6. In the assembled state, the slat plate 3 made of the slat plates 3a and 3b is L-shaped, but when removed, as shown in FIG. 2, the slat plate 3a is pulled out and the sill plate 3b is hinged 13. To open the mold. As shown in FIG. 6, since the bottom plate 12 a is supported by the wheel 19 attached to the base 7 with the legs 12 provided in the lower part, the arrow 3 is drawn when being pulled out as indicated by a chain line or when being assembled as indicated by a solid line. It can be easily moved in the direction. Reference numeral 15 denotes a hole provided on the base, into which the leg 12 is inserted.
[0012]
The end plate 5 is movable between the dam plates 2 and 3 in the horizontal direction. FIG. 1 shows the state of not moving, and FIG. 3 shows the state of movement. The bottom plate on the side of the end plate 5 has the same width as the end plate 5 and is a bottom plate moving portion 4a formed separately from the other portions of the bottom plate. The end plate 5 and the bottom plate moving portion 4a Are integrated. As shown in FIG. 6, the bottom plate moving unit 4 a is supported on a wheel 14 provided on the base 7, and can easily move in the horizontal direction together with the end plate 5. Portions other than the bottom plate moving part 4 a of the bottom plate 4 are fixed to the base 7.
[0013]
As shown in FIG. 7, rubber 16 is attached to the joint between the end plate 5 and the bottom plate moving portion 4 a, and the end plate 5 can be freely inclined by the elasticity of the rubber 16. The protrusion 17 protruding from the end plate 5 engages with the guide groove 18a of the guide piece 18 provided on the bottom plate moving portion 4a, and moves along the guide groove 18a, whereby an excessive force acts on the rubber 16. Is preventing. When rubber is used for the coupling portion, it is desirable to provide such a reinforcing mechanism, but various reinforcing mechanisms are conceivable and are not limited to the examples.
[0014]
On the back side of the end plate 5, a columnar reaction force member 8 is erected on a table 7. Two arms 10 are fixed to the reaction member 8 at the top and bottom. A milling chuck 11 is pivotally attached to the arm 10. A support means (metal pipe) 9 is inserted into the milling chuck 11, and its tip is pivotally attached to the back surface of the end plate 5. The milling chuck 11 is a known mechanism in which the inserted metal pipe is loosened and slidable by turning the operation ring, or is fixed by being tightened. When the milling chuck 11 is loosened, the end plate 5 and the bottom plate moving portion 4a can be moved. Therefore, as shown in FIG. 5, the end plate 5 and the bottom plate moving portion 4a can be moved to arbitrary positions, and the end plate 5 can be inclined as necessary. Can do. After that, when the milling chuck 11 is tightened and fixed, the end plate 5 and the bottom plate moving portion 4a are supported by the supporting means 9 and are completely fixed, so that the accuracy of the block to be formed becomes very good. In this way, the end plate 5 and the bottom plate moving part 4a can be moved to desired positions, and the end plate 5 can be tilted and fixed at a desired angle. Blocks inclined at an angle can be easily formed.
[0015]
Since the support means 9 is provided in two places on the top and bottom, the end plate 5 can be fixed by being inclined at an arbitrary angle.
[0016]
For example, as shown in FIG. 5, the end plate 5 is set in a state of being moved and inclined, and the slats 3a and 3b are tightened (a tightening device is not shown) to be in an assembled state, filled with concrete, and hardened. After curing, as shown in FIG. 2, the weir plate 3a is pulled out, the weir plate 3b is rotated to open the mold, and the molded L-shaped block is taken out. The L-shaped block formed in this way has an upper portion inclined as shown by a chain line B in FIG.
[0017]
【The invention's effect】
Since the end plate moves in the L-shaped block form of the present invention, a block having an arbitrary height can be easily formed with high accuracy. Further, if the connecting portion of the end plate and the bottom plate moving portion is rotated so that the end plate can be tilted, an L-shaped block whose upper portion is inclined can be easily formed. At this time, since there is no need to modify by welding or the like, there is no problem that accuracy is deteriorated or durability is lost.
[Brief description of the drawings]
FIG. 1 is a plan view of a mold 1 of an L-shaped block according to an embodiment.
FIG. 2 is a plan view of a mold 1 in a mold open state.
FIG. 3 is a plan view showing a state in which an end plate 5 of the mold 1 is moved inward.
FIG. 4 is a side view of the mold 1 with the dam plate 3a removed.
5 is a side view of the mold 1 showing a state in which the end plate 5 is moved and tilted, with the cut-off plate 3a removed, and FIG. 6 is a partial cross-sectional view taken along the line XX of FIG.
FIG. 7 is a cross-sectional view of a connecting portion between the end plate 5 and the bottom plate moving portion 4a.
FIG. 8 is a perspective view of an L-shaped block.
FIG. 9 is a plan view of a conventional mold 30. FIG.
FIG. 10 is a side view of the mold 30 with the skirt plate 32a removed.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Formwork 2 Baffle plate 3 Baffle plate 4 Bottom plate 4a Bottom plate moving part 5 End plate 6 End plate 7 Base 8 Reaction force member 9 Support means 10 Arm 11 Milling chuck 12 Leg 13 Hinge 14 Wheel 15 Hole 16 Rubber 17 Protrusion 18 Guide piece 19 Wheel 21 L-shaped block 22 Wall plate part 23 Bottom plate part 30 Form 31 Pitch plate 32 Peg plate 33 Bottom plate 34 End plate 35 End plate 36 Auxiliary end plate 37 Reinforcement material 38 Base 39 Hinge

Claims (2)

Two slats ( 2 ) , ( 3 ) having a planar shape opposed to each other at a predetermined interval and having a substantially L shape, and a bottom plate ( 4 ) closing the bottom between the slats ( 2 ) , ( 3 ) , end plates for closing the ends (5), has (6), these dam (2), (3), the bottom plate (4) and the end plate (5), a cavity surrounded by (6) In the form of an L-shaped block filled with concrete, the end plate ( 5 ) can be moved horizontally between the dam plates ( 2 ) and ( 3 ) and is provided on the back side of the end plate ( 5 ). from the reaction member (8) that is, the support means (9) is length adjustable is provided against the end plate (5), end plates supporting means (9) is moved to a desired position (5) is intended to support, the bottom plate of the side parts of the movable and is the end plate (5) and (4), the end plate (5) and the bottom plate moving part of the same width 4a) is formed separately from other parts of the bottom plate (4), and the end plate (5) and the bottom plate moving part (4a) are integrated and move together. Form block formwork. In mold of claim 1, wherein the end plate (5) so as to be inclined, the end plate (5) and L-shaped coupling portion is characterized in that it is the rotation of the bottom plate moving part (4a) Block formwork .

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