JP4292780B2 - Formwork for manufacturing variable angle walls and portal blocks made with variable angle manufacturing forms - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The water channel wall variable angle manufacturing form according to the present invention is a large gate-shaped block in which the right and left water channel walls are inclined at a required angle while corresponding to the required water channel width, water channel wall height, water channel wall thickness and top plate thickness. The present invention relates to a formwork for producing a flat channel wall variable angle that can be manufactured.
[0002]
The portal block of the present invention is a portal block made of the above-mentioned mold for manufacturing a variable channel wall angle, and is bent by connecting a required number of culvert blocks combined with a large portal block whose channel wall is inclined at a required angle. If laid at the point, it will be possible to lay the bending point construction part, which was conventionally on-site, in a short period of time, and when bridging to a small existing waterway, the road intersecting the waterway will be other than orthogonal Since the right and left waterway walls can be formed at any angle even at the site, it is possible to bridge on the extension lines of the roads on both banks. In addition, gate blocks with different waterway widths connected to the waterway walls are connected to each other. Further, the present invention relates to a portal block that can be used to construct a water channel with a widened downstream portion, or to manufacture a large culvert block with an expanded opening (inlet portion) by vertically combining gate-shaped blocks formed in a square shape.
[0003]
[Prior art]
FIG. 12 is a front view showing an outline of a conventional gate-shaped block manufacturing form K, in which the left and right side plates 5 and the adjustment side plates 6 on the front side are omitted. The production form K is detachably fixed to the second base 2A on which the adjustment core 4A is placed at a substantially central portion on the first base 1 having a length capable of producing the maximum water channel width. End cores 4B are placed on the left and right second bases 2B fixed detachably on both sides of the base 2A, and openable left and right side plates 3 are pivotally mounted to project the front and rear portions of the end core 4B. The left and right end plates 5 are pivotally attached to the bracket 5h so that the left and right end plates 5 can be opened and closed, and the adjustment end plates 6 of the required length are pivotally attached to the front and rear portions of the adjustment core 4A, so that the water channel width L, the channel wall height H, and the channel wall The change of the thickness t corresponds to the change of the adjustment core 4A, the adjustment support plate 6 and the bottom member 7, and the portal block B having the required dimensions shown in the drawing can be manufactured.
[0004]
However, in the conventional formwork K for manufacturing the gate-shaped block having the above-described configuration, the channel width L, the channel wall height H, the channel wall thickness t, and the like can be changed. Products with a water channel wall W other than a right angle to the water channel width L direction could not be produced.
[0005]
FIG. 13 (a) is an explanatory diagram of bending construction in which a conventional culvert block B is connected by connecting up and down the gate block B up and down, and the refracting point is used to refract the connected culvert block. A method is known in which a culvert block BC whose abutment surface ts is obliquely cut with a wire saw is connected to b, or a formwork is assembled at the refraction point b and cast in the field.
[0006]
FIG.13 (b) is explanatory drawing which shows the construction method bridge | crosslinked to the small existing water channel ri using the portal block B manufactured with the manufacturing form K of the portal block of the prior art, In the case of bridging using the gate block B on the extension line of the road ro that obliquely intersects the existing water channel ri shown, the water channel wall can be reasonably formed on the foundation placed in parallel with the existing water channel ri The gate-shaped block B could not be laid by connecting the W bottom surfaces.
[0007]
The portal block with the required angle on the channel wall W when bridging to the crooked part when connecting the above-mentioned portal block B and culvert block (by the portal block B) or a small existing channel ri If B2 (to be described later) can be provided, the construction period can be shortened and the construction cost can be reduced by eliminating on-site work or rational construction. If you can provide a portal block B3 (to be described later) in which the channel wall W is formed in a square shape when constructing a widened part that is open in a letter shape, the construction period can be shortened and the construction cost can be reduced. There has been a demand for the portal block B2 having the required angle W and the portal block B3 in which the water channel wall W is opened in a square shape.
[0008]
[Problems to be solved by the invention]
The formwork for the production of large portal blocks under high-mix low-volume production can be adapted to change of required channel width L, channel wall height H, channel wall thickness t and top plate thickness T, and inherent channel width The left and right water channel walls W arranged at right angles to the direction can be formed at an arbitrary angle, or can be formed into a square shape with an arbitrary angle, and the aforementioned portal block B and culvert block BX are connected in series. If the gate block B2 in which the water channel wall W is formed at an arbitrary angle in the bent portion of the case, and the gate block B3 in which the water channel wall is formed in a C shape is provided in the widened portion of the water channel width, etc. Cut the gate block B, eliminate the on-site strike, etc., shorten the construction period and reduce construction costs, and the waterway wall even in the case of small bridges that intersect with the existing waterway ri at an angle other than orthogonal If you use the portal block B2 with W at an arbitrary angle, Can be connected in a balanced manner on a foundation placed in parallel with i, shortening the construction period and reducing the construction cost. An object of the present invention is to provide portal blocks B2, B3, etc. made of a variable angle manufacturing formwork.
[0009]
[Means for Solving the Problems]
In the first aspect of the present invention, as a means for solving the above-mentioned problem, a gate shape is formed by turning the end cores and side plates at both ends of the formwork to form a required channel width (road width) and a channel channel (side wall) at an arbitrary angle. A block manufacturing form that is directly connected (fixed) on a base frame, or one or more adjusting cores can be connected in the middle, and arc-shaped joints formed at both ends are formed. Interchangeable between the core member, an end core that is pivoted at a predetermined angle and is mounted on the base frame and joined by the arcuate joint surface that bulges at both ends of the core member, and the end core end surface Left and right side plates that can rotate at a required angle around the same axis as the end core while sandwiching a bottom surface member (forming the channel wall thickness and channel wall height to predetermined dimensions), and the core member (including the adjustment core) ) And the upper surface of the end core and the inner surfaces of the left and right side plates, and a single unit or adjustable tread plate that can be fixed in parallel with the core member is required. The front and rear upper end plates, the corners (haunch portions) of the left and right end cores, the vertical wall, the inner surfaces of the left and right side plates, and the bottom surface of the bottom plate are sealed to be flush with the inner surfaces of the upper end plates. The water channel wall variable angle manufacturing form is characterized in that it comprises a replaceable left and right front and rear front and rear end plates that come into contact with each other. The top plate thickness is adjusted by attaching a raising member having a required dimension to the upper and lower upper end plates and side plate upper surfaces.
[0010]
According to a second aspect of the present invention, as a means for solving the above-mentioned problem, the arc of the arc-shaped joint surface has a radius on a circumference of 1/2 or more of the core member depth dimension, The depth dimension of the side plate is formed to be greater than the core member depth dimension, thereby enabling the end core to pivot, and to compensate for the lack of the diagonal distance between the end core front and rear end faces and the side plate front and rear end faces. The water channel wall variable angle manufacturing form according to claim 1 is configured.
[0011]
According to a third aspect of the present invention, as means for solving the above-mentioned problem, a polymer having a self-lubricating and anti-friction property is slid or sliding on a rail having a required length laid on a foundation instead of the frame. A plastic plate) Linking A plurality of bogies (possible on the rail or foundation) are provided, and the core member formed with arc-shaped joint surfaces at both ends is divided into two and fixed on the bogie directly. Linking Integrated with each other, or a cart with one or more adjusting cores fixed in the middle Linking It is possible to place end cores and side plates joined by arcuate joint surfaces at both ends of the core member. Essential 2. A cart mounted so as to be able to turn at an angle is fixedly connected (to a mounting portion provided on a rail or a base) (connected to a cart on which the core member is mounted). Or 2 The water channel wall variable angle manufacturing form described is constructed. If configured as described above, it can be transferred to the steam curing tank in the manufacturing plant, or it can be adjusted for remodeling when the product dimensions are different in an indoor line with various facilities such as an overhead crane. It is also useful when it is pulled out and cast or removed.
[0012]
Further, according to a fourth aspect of the present invention, as means for solving the above-mentioned problem, the water channel wall variable angle manufacturing form according to any one of the first to third aspects is used. In addition to being able to respond to changes in the channel wall thickness, the right and left channel walls that are originally arranged at right angles to the channel width direction are formed at an arbitrary angle, or formed into a C-shaped channel wall at an arbitrary angle. A channel wall with an arbitrary angle other than a right angle to the channel width direction Configure the portal block.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
[Example]
Embodiments of the present invention will be described with reference to the drawings and the following examples. FIG. 1 is a front view showing a schematic configuration of a first embodiment of a form for manufacturing a variable channel wall according to the present invention, and FIG. 2 is a first embodiment of a form for manufacturing a variable channel angle according to the present invention. It is a top view which shows schematic structure of these. Hereinafter, a schematic configuration of a first embodiment (hereinafter, referred to as a mold KA1) of a mold for manufacturing a variable channel angle according to the present invention will be described with reference to both drawings.
[0014]
FIG. 1 is a front view of a formwork KA1 (the channel wall is at a right angle) schematically showing the front left and right side plates 120 and the upper side plate 100, and FIG. 2 is a plan view showing a schematic configuration of the formwork KA1. The wall is at right angle). The feature of the mold KA1 of the present invention is that the required waterway width L is formed, and the end cores 50L and 50R connected to both ends of the core member 40 by arcuate joint surfaces and the left and right side plates 60L and 60R erected so as to be able to advance and retract. The portal shape block This is a formwork that turns the canal wall W part to an arbitrary angle within the range of ± 30 degrees from the right angle, which is the most demanded angle, and makes it possible to manufacture a portal channel block with an angle to the canal wall W by flat punching. The core member 40 having the required length formed with the arc-shaped joint surface C1 inserted into both ends is divided into two parts, mounted on the connectable frame 10, and directly connected (waterway width) One or more adjusting cores 42 mounted on the underframe 10 are connected in the middle to correspond to the required channel width, and the arc-shaped joint surfaces C1 at both ends of the core member 40 The left and right ends formed on the frame 51 having a core outer skin protruding from the arcuate joint surface C2 which is sealed and connected to the arcuate joint surface C1 while the packing p is provided on the back surface of the core outer skin. A turning mechanism 50T (described later) that can turn the cores 50L and 50R left and right at a required angle is provided. The frame 12 that is fixed on the swivel base 54 and pivotally attached to the swivel base 54 is connected to the left and right ends of the base frame 10 so that the inner surface of the water channel wall W having the required width L and the required angle can be formed. A width-reducing mechanism 50X (described later) is provided inside the vertical wall portion v having flexibility on the end face of the core so as to smoothly separate the product from the product at the time of demolding, and the end cores 50L and 50R are arranged vertically. An endless core member 50L, which has an arbitrarily-shaped exchangeable bottom member 80 (having a packing p provided around it) to form a required channel wall thickness t and channel wall height H between the wall portion v and the wall portion v. The left and right side plates 60L and 60R that can turn around the same axis as 50R are fixed on the turntable 54 via a rectangular bar-like slide rod 65 that is horizontally provided in the lower part. Insert in the replacement), standing up and down, Turning A required length for forming a front and rear end face of the portal block by installing a fastening mechanism 60X (to be described later) for screwing the female screw member 56 fixed on the table 54 to advance and retract and tighten the left and right side plates 60L and 60R. A packing p that can be sealed to the upper surface of the core member 40 (including the used adjustment core 42) and the upper surfaces of the end cores 50L and 50R is attached to the lower surface portion of the left and right side plates 60L and 60R. Regardless of the swivel angle, the front and back upper end plates 100 (the length between the opposite side plates connected to each other by connecting the single end or the adjustment end plate 90) have acute contact surfaces 106 that can be fixed by the fixing member 116 at both ends. ), The right and left end cores 50L and 50R, and the vertical wall portion v (end portion) connected to the hunch portion h and the inner surfaces of the left and right side plates 60L and 60R for sealing. Abutting core-side contact surfaces 121, 122 and side plate-side contact The front and rear end plate 120 of the interchangeable lateral with 126, the upper end plate 100 is connected through a joint attachment piece 125 right and left side plates 60L, and presses the 60R inner surface constitutes a clamping possible formwork KA1. The arc-shaped joint surfaces C1 and C2 are arcs on a circumference of ½ or more of the core member depth dimension, and the depth dimensions of the end core end surface (including the hunch part) and the side plate are also the core member. The left and right end cores 50L and 50R and the left and right side plates 60L and 60R are formed so as to have a depth dimension or more so as to compensate for an oblique distance dimension when the left and right side plates 60L and 60R are turned about the same axis.
[0015]
In order to improve the accuracy of the main frame KA1, the connection between the frame frames 10 and 12 shown in FIGS. 1 and 2 is performed by connecting the position adjusting means and the screw by fitting the protruding taper pin with the positioning hole / uneven portion. The connecting portion between the adjustment tab 90 and the upper tab 100 is also connected by improving the straight advancement by the same means, and the positioning pin 104 is inserted into the positioning hole 44 on the upper surface of the core member 40 (including the adjustment core 42). The upper and lower upper plates 100 including the front and rear adjustment tabs 90 are fixedly connected by clamp bars cb having clamps at both ends having a product depth dimension. And strengthen the rigidity.
[0016]
FIG. 3 is an enlarged front view showing the right end core 50R of the formwork KA1 according to the present invention (the front upper end plate 100 and the end plate 120 are omitted and the water channel wall is at a right angle), and FIG. 4 is a diagram according to the present invention. FIG. 5 is an enlarged plan view showing the right end core 50R of the frame KA1 (when the water channel wall is at a right angle), and FIG. 5 is an enlarged plan view showing the right turn core 50R of the mold KA1 according to the present invention when turning right. 6 is a core at the right end of the formwork KA1 according to the present invention. 50R FIG. 7 is an explanatory view of another width-reducing mechanism 50Y interlocked with the advancement / retraction of the side plate of the mold KA1 according to the present invention. Hereinafter, the right end core 50R (same configuration as the left end core 50L) of the mold KA1 will be described with reference to the drawings.
[0017]
A right end core 50R that can be turned will be described with reference to FIGS. The right end core 50R fixed through the frame 51 except for the vertical wall portion v on the swivel base 54 pivotally mounted on the frame 12 has an arcuate joint surface C1 inserted into the end of the core member 40. Joined by the bulging arcuate joint surface C2 having the same radius, the back surface periphery of the arcuate joint surface C1 surrounds the packing p and is slidably contacted so as to be able to turn, and peeled off from the inner surface of the product at the time of demolding In order to make the end core 50R easier, the end portion of the end core 50R has a hunch h or rounded shape, and a vertical wall portion v extending inwardly to give flexibility to the outer core of the core portion and extending the back is provided. A plurality of pivot attachment holes 52 are provided at the lower end of the rib, and a connection hole 52h that can be connected to the pivot attachment hole 52 is provided at one end and engaged with the eccentric ring 53 at the other end. Engagement hole An eccentric ring 53 fixed to an operation shaft 57 having an operation handle 57h pivotably supported on the swivel base 54 is pivotally attached to the pivot hole 52L. A width-reducing mechanism 50X engaged with the inner wall is provided, and when the operation handle 57h is rotated to the left or right when demolding, the vertical wall portion v is displaced inward, and when driving, the operation handle 57h can be returned to a predetermined position. For example, the vertical wall portion v returns to the normal position and is fixed (the operation handle is locked by a plate-shaped flange). Next, another width reduction mechanism 50Y will be described with reference to FIG.
[0018]
FIG. 7 is an explanatory diagram of another width-reducing mechanism 50Y that is interlocked with the advance and retreat of the side plate. The expansion / contraction mechanism 50Y shown in the drawing displaces the vertical wall portion v of the end core 50R inward or returns to the normal position in synchronization with the opening (retreating) and tightening (advancing) of the left and right side plates 60L and 60R. For this purpose, the upper hole 72 of the link 70 having the upper and lower holes 72 and 75 and the middle point hole 74 is pivotally attached to the pivot hole 52, and the middle point hole 74 is supported on the turntable 54, and the lower hole 75 and the left and right side plates are supported. A rod 76 having a compression spring sp provided between the lower arms 64 of 60L and 60R is pivotally connected to constitute a width reducing mechanism 50Y of the end core 50R that is interlocked with the tightening or opening of the left and right side plates 60L and 60R. You can also In addition, the fastening bolt 66 of the fastening mechanism 60X is shown on the right side in the drawing.
[0019]
Further, the tightening mechanism 60X (see FIGS. 3, 4 and 7) of the left and right side plates 60L and 60R has a tightening hole 62 on substantially the same horizontal line as the sliding rod 65 of the right side plate 60R standing up and down. A tightening bolt 66 having a threaded portion 66 s provided at the tip and a diameter-enlarged portion 67, a subsequent diameter-reduced portion 68 and a rotating head 66 h in the vicinity of the other end is expanded in the tightening hole 62. The engagement member 63 provided with an opening that can be inserted through the portion 67 and inserted into the reduced diameter portion 68 is screwed to the outer edge of the tightening hole 62 to reduce the diameter reduced portion 68 between the rotating head 66 h and the enlarged diameter portion 67. When the mold is assembled by screwing the tip threaded portion 66s with the female screw member 56, the right side plate 60R sandwiches the bottom member 80 between the core end surface by rotating the rotary head 66h to the right. Is moved forward and tightened. When the mold is removed, if the rotary head 66h is rotated counterclockwise, the right side plate 60R moves backward to retract the sliding rod 65. Constitute a tightening mechanism 60X that enables removed by.
[0020]
The swivel base 54 has a self-lubricating and anti-friction polymer resin plate N attached to the bottom surface, and a support shaft 54s is provided on the bottom surface of the swivel base 54 just below the core corner (turning center point). The support shaft 54s is pivotally attached to the support portion 14 fixed to the frame 12, and the worm wheel ww pivotally attached to the support shaft 54s and the worm wo pivotally supported by the frame 12 are rotated by a predetermined angle. A turning mechanism 50T that can turn to the right is configured. The turning operation using the worm gear described above may be configured such that the end core 50R can turn at a predetermined angle by turning a rack fixed to the periphery of the turntable 54 (not shown) and a pinion gear pivotally supported on the base frame 12. Can be pulled by a small chain block engaged with a hook fixed to the underframe 12 and the swivel base 54, or a swivel operation can be performed by inserting a steel pipe near the support shaft 54s of the end core 50R (50L). You can also.
[0021]
Further, in the case of a formwork having a small channel width (for example, 2 m to 3 m), a core member 40 having an arc shape with a large radius formed by approaching arc-shaped joint portions C1 at both left and right ends is formed. The cores 50L and 50R are also formed with an arcuate joint surface C2 having a large radius in order to shorten the lateral dimension, the hunch part h and the vertical wall part v are provided in the vicinity of the part, and the circular shape is obtained without using the support shaft 54s. It is also easy to make a turnable (centerless) by engaging a slide pin or the like with an arcuate guide having the same turning center point inside the arcuate joint surface C2.
[0022]
FIG. 5 is an enlarged plan view showing the right end core 50R of the formwork KA1 according to the present invention when turning right, and the right end core 50R is formed by tilting the channel wall W of the portal block at a predetermined angle. Is turned 30 degrees to the right (approximately the maximum angle). A bottom surface member 80 (having required dimensions and angles) is sandwiched between the end of the right end core 50R and the right side plate 60R, and the sharp end 106 of the upper end plate 100 and the acute end 126 of the front and rear end plates 120 are rigid. The packing p is in contact with the inner surface of the right side plate 60R, fixed in parallel with the upper surface of the front upper plate 100, and the hanging portion 118 of the fixing member 116 straddling the right side plate 60R is perpendicular to the right side plate 60R. The fixing member 116 of the rear upper end plate 100 is obliquely fixed to a position straddling the side plate, and the hanging portion 118 at the tip is fixed by the fastening bolt 108 orthogonal to the side plate. It is tightened. A side plate 60R2 indicated by a two-dot chain line indicates an extending portion that covers a shortage of dimensions when the right end core 50R is turned counterclockwise.
[0023]
6 is an enlarged plan view showing the right end core 50R of the formwork KA1 according to the present invention when turning left, in the case where the left and right channel walls W of the portal block are formed in a square shape, or the left and right end portions. Shown in a state in which the core is turned to 30 degrees to the left, which is approximately the maximum angle, for the purpose of forming a gate block that requires a left turn angle (necessary when combining a pair of upper and lower gate blocks to form a culvert block) ing. A bottom member 80 (formed at the opposite angle to that when turning right) is sandwiched between the end of the right end core 50R and the right side plate 60R, and the hard packing of the sharp end 106 of the upper end plate 100 and the front and rear end plates 120 p is in contact with the inner surface of the right side plate 60R, the fixing member 116 which is obliquely fixed to the front upper end plate 100 is located across the side plate, and the hanging portion 118 at the tip is perpendicular to the side plate and is tightened by the tightening bolt 108. The hanging portion 118 of the fixing member 116 which is fixed in parallel with the upper surface of the rear upper twill plate 100 and straddles the side plate is deflected to an angle where the axis of the fastening bolt 108 is orthogonal to the right side plate 60R and is tightened by the fastening bolt 108. When attached, the right side plate when turning left 60R Since the front-rear dimension (front side) of the left side plate 60L is insufficient, the right side plate 60R is moved backward by rotating the rotating head 66h of the tightening mechanism 60X of the right end core 50R. As shown in the drawing, the right side plate 60R is replaced with the guide cylinder 55b adjacent to the guide cylinder 55a fixed on the swivel base 54 and tightened to the other female screw member 56L fixed on the swivel base 54. The auxiliary bolt 66 is screwed to stand up and down so as to cover the shortage of the front side dimension when the right side plate 60R is turned to the left and to reduce the weight of the side plate. Incidentally, if the right side plate 60R2 having the front side extended as shown by the two-dot chain line in FIG. 5 is formed, the configuration and operation for the replacement are of course unnecessary.
[0024]
Further, if a scale M for marking the angle of the swivel base is engraved between the arcuate joint surfaces C1, C2 or on the outer peripheral surface of the core member and the end core, the channel wall W This is useful because the predetermined angle of the part can be confirmed.
[0025]
FIG. 8 is a perspective view showing the structure of the upper end plate and the left and right front and rear end plates. The upper end plate 100 and the left and right front and rear end plates 120 are connected to the core member 40 regardless of the turning angles of the end cores 50L and 50R. In order to press and fix to the inner surfaces of the left and right side plates 60L, 60R in a parallel state, the end contact surfaces 106, 126 of the front and rear upper end plates 100 and the left and right front and rear end plates 120 are formed in acute angles, and the string-like hard at the tip The packing p is embedded so that it can be sealed to the inner surfaces of the left and right side plates 60L, 60R, and the contact surfaces 121, 122 on the end cores 50R, 50L side of the front and rear end plates 120 are also formed with acute angles, and the ends are string-like. A hard packing p is embedded and can be sealed to the corner h of the end cores 50L and 50R and the vertical wall v when the mold is tightened, and attached so as to straddle the side plates 60L and 60R from the upper surface of the upper end plate 100 Screw fixed arm 115 whose angle can be changed A side plate is fixed via a fixing member 116 including a fastening bolt 108 screwed from the outside of the hanging portion 118 and screwed so that the mounting angle can be changed. It is configured to be fixed in the vicinity of the contact position orthogonal to the plate, and a plate-like packing p is attached to the upper contact surface 124 of the front and rear end plates 120, and a connecting piece 125 is protruded from the upper outer side to be screwed or known. The vertical wall portion v can be fixed to the side end portion 102 of the upper end plate 100 with a toggle clamp cr or the like, and a through hole 128 (opened at the lower end) of the tightening bolt 88 is provided in the lower portion. In addition to the clamping between the left and right side plates 60L and 60R, the side surface of the bottom member 80 is pressed between the front and rear end plates 120 from outside to be clamped.
[0026]
At the time of placing the formwork KA1 with the above configuration (when a required angle is required for the water channel wall W), the core member 40 to which the adjusting core 42 and the like described above satisfying the required water channel width L is assembled is assembled. The left and right end cores 50L and 50R are turned to a required angle, and a bottom member 80 having a required angle dimension adjusted between the core end and the left and right side plates 60L and 60R and having a fastening bolt 88 penetrated is mounted. A fixing member in which upper and lower upper end plates 100 including an adjustment end plate 90 adjusted to the length between the inner surfaces of the left right side plates 60L and 60R and having positioning pins 104 planted at predetermined positions on the lower surface side are fixed to the upper surface of the upper end of the upper end plate 100 116 The hanging portion 118 at the tip end is suspended at a position straddling the left and right side plates 60L, 60R, and the positioning pin 104 is inserted into and abutted with the positioning pin hole 44 on the upper surface of the core member 40 with a known toggle clamp cr. upright It linked keeping the state, the front and rear end plate 120 opening Through hole If 128 is externally fitted to the fastening bolt 88 of the bottom member 80 and the connecting piece 125 at the upper part of the fastening is screwed to the front and rear upper end plate 100 or fixed with a known toggle clamp cr, it is attached to the front and rear end surfaces of the bottom member 80. Since the piece 125 is fixed in parallel with the upper end plate 100, the fastening bolts 66 of the left and right side plates 60L and 60R and the upper end plate 100 are tightened to increase the rigidity of the portion, and the concrete is measured from the upper surface. To cast.
[0027]
When releasing the mold, the tightening bolt 108 is loosened, the toggle clamp cr fixed to the core member 40 is released, the tightening bolt 108 is tightened, and the tightening bolt 88 below the front and rear end plates 120 is loosened. The upper end plate 100 and the left and right front and rear end plates 120 are free, and the fastening bolts 66 of the left and right side plates 60L and 60R are rotated counterclockwise (the side plates are retracted) to reduce the width reduction mechanism 50X (the vertical wall v inward) of the end core 50R. May be lifted together with the upper end plate 100, or the connecting piece 125 may be screwed or the known toggle clamp cr may be released to remove the front and rear end plates 120 separately. The portal block can be removed upward by operation.
[0028]
FIG. 9 shows a schematic configuration of a second embodiment (hereinafter referred to as a mold KA2) of a mold for manufacturing a variable channel wall angle according to the present invention. Illustration Thus, the main form KA2 shown in FIG. 9A is configured on a plurality of connectable carts 25 and 26 having a positioning function (such as fitting of the concavo-convex portions) instead of the frame frames 10 and 12. Then, a rail 30 of a required length laid on the foundation Ba is laid, and a movable wheel 22 or a skid 24 made of a polymer resin having self-lubricating and anti-friction properties is pasted on the rail 30 and stuck. A plurality of trolleys 25 and 26 of a required length that can be slid and moved and fixed at an arbitrary position (on the rail 30 or on the brace provided on the foundation Ba) are mounted. A plurality of core members 40 that are directly connected or one or more adjusting cores 42 are connected in the middle are placed, and both ends of the core member 40 are joined to the arc-shaped joint surface C1 by the arc-shaped joint surface C2. The end cores 50L and 50R and the left and right side plates 60L and 60R are mounted so as to be able to turn at a predetermined angle. The vehicle 26 is configured to allow coupling. The connecting portion of each carriage is connected with high accuracy in the same manner as the base frame of the mold KA1 by screwing with a position matching means such as a fitting of a taper pin and a positioning hole / uneven portion.
[0029]
FIG. 9B shows a rail clamp 30C for fixing the carriage 26 of the formwork KA2 on the rail 30. The rail clamp 30C can be opened and closed via a push screw member 38 for gripping the rail 30 from both sides. Gripping members 34 and 32 are provided with alternately projecting butterfly parts to be hinged. A threaded part 34s is formed in the hinged part of the gripping member 34, and an insertion hole 37 for a fixing screw is formed from the side surface part. The female screw part is formed in the gripping member 32 on the coaxial line. 35 The gripping members 34 and 32 that are opened with the push screw member 38 as a fulcrum are covered by the elastic force of the spring sp at any position on the rail 30 and fixed by tightening the fixing screw 36. The cart (form) can be fixed by tightening the screw member 38. Further, instead of the rail clamp 30C, a wire, a connecting rod, a turn buckle, or the like may be used between the carriages and between the bridging portions provided on the foundation Ba to be able to be tensioned and locked.
[0030]
If the formwork KA2 is configured as described above, it can be transferred to a steam curing tank in the manufacturing plant or the formwork can be adjusted when the product dimensions are different in an indoor line equipped with each equipment such as an overhead crane. It is also useful when, for example, it is pulled out to the outer line and cast or removed.
[0031]
FIG. 10 is an explanatory diagram of construction by the portal block B2 made by the molds KA1 and KA2 according to the present invention. The portal block B2 shown in FIG. 10 (a) can be manufactured at an arbitrary angle with the right and left water channel walls W, so that a water channel including a crooked portion can be easily constructed. If the block BX is laid on the bending point, it is possible to lay the bending point construction part, which was conventionally hitting on the spot, in a short period of time. In addition, when bridged to a small existing water channel ri, if the gate block B2 is applied, the right and left water channel walls W can be formed at an arbitrary angle even at a site where the road ro intersecting the water channel ri is not orthogonal. It can be connected to the foundation ba placed in parallel with ri and can be rationally bridged on the extended line of the road ro on both banks, thereby shortening the construction period and the construction cost.
[0032]
FIG. 11 is an explanatory diagram of construction by the portal block B3 made by the molds KA1 and KA2 according to the present invention. The portal block B3 can form a channel wall in the shape of a letter C, so that a portal channel B3 with different channel widths can be connected to construct a channel that extends downstream, or a portal block formed in a letter C shape. A large culvert block with a wide opening (entrance part) can be manufactured by combining the upper and lower parts, and the construction period and construction cost can be reduced.
[0033]
【The invention's effect】
If this formwork KA1 is used when manufacturing a portal block with a width of 3m to 10m in flat, the required width of the canal will be reduced by reducing the cost of the large formwork block manufacturing form under high-mix low-volume production. L, left and right channel blocks B2, which correspond to changes in the channel wall height H, channel wall thickness t, etc., and the right and left channel walls W originally arranged at right angles to the channel width direction Because it is possible to manufacture portal blocks B3, etc., in which the channel wall W is formed into a square shape with an arbitrary angle, it is possible to deal with innovative designs that have been avoided in the prior art, shortening the construction period by eliminating on-site strikes, etc. There is an effect that can be reduced.
[0034]
Further, since the arc-shaped joint surface is an arc-shaped joint surface having a radius of 1/2 or more of the core member depth dimension, the core end can be formed without omission even when the end core is pivoted. effective.
[0035]
Furthermore, since the formwork KA2 is configured on the rail, the formwork can be changed when the product dimensions are different in the indoor line equipped with each equipment such as transport to the steam curing tank in the manufacturing plant after installation or overhead crane. Adjustments can also be made, and it is also useful when, for example, being drawn out and removed from the outer line.
[0036]
In addition, if the formwork KA1, KA2 of the present invention is applied, the left and right water channel walls W, which are originally arranged at right angles to the water channel width direction, can be formed at an arbitrary angle. If the gate block B2 with the channel wall W formed at an arbitrary angle at the point portion is used, there is an effect that the construction period can be shortened and the construction cost can be reduced by cutting the complicated gate block, eliminating the field work, In the case of a small-scale bridge that intersects a small existing waterway such as an agricultural land with an angle other than orthogonal, if a portal block B2 having a waterway wall W formed at an arbitrary angle is used, it is parallel to the waterway ri. It is possible to connect to the foundations placed in the ground and to perform rational construction, and to shorten the construction period and reduce construction costs.
[0037]
Furthermore, if this formwork KA1, KA2 is applied, the right and left water channel walls W, which are originally arranged at right angles to the water channel width direction, can be formed in a square shape with an arbitrary angle, so that the water channel can be formed in the wide portion of the water channel width. If you use the portal block B3 etc. whose walls are formed in a square shape, the construction period can be shortened and the construction costs can be reduced by eliminating complicated on-site strikes. Constructing a wide channel in the downstream by connecting different portal blocks, or manufacturing a large culvert block with an expanded opening (entrance) by combining the portal block B3 formed in a square shape. There is a possible effect.
[Brief description of the drawings]
FIG. 1 is a front view showing a schematic configuration of a formwork KA1 according to the present invention.
FIG. 2 is a plan view showing a schematic configuration of a formwork KA1 according to the present invention.
FIG. 3 is an enlarged front view showing a right end core of the mold KA1 according to the present invention.
FIG. 4 is an enlarged plan view showing a right end core of the mold KA1 according to the present invention.
FIG. 5 is an enlarged plan view showing the right end core of the mold KA1 according to the present invention when it is turned right.
FIG. 6 is an enlarged plan view showing the right end core of the mold KA1 according to the present invention when turning left.
FIG. 7 is an explanatory view of another width-reducing mechanism 50Y interlocked with the advancement / retraction of the side plate of the formwork KA1 according to the present invention.
FIG. 8 is a perspective view showing the configuration of the upper end plate end portion and the left and right front and rear end plates of the formwork KA1 according to the present invention.
FIG. 9 shows a form of KA2 according to the present invention. Schematic configuration It is explanatory drawing which shows.
FIG. 10 is a construction explanatory diagram of a portal block B2 made by the molds KA1 and KA2 according to the present invention.
FIG. 11 is an explanatory diagram of construction by a portal block B3 made by the molds KA1 and KA2 according to the present invention.
FIG. 12 is a front view showing an outline of a portal block manufacturing form K of the prior art.
FIG. 13 is an explanatory diagram of construction using a conventional gate block.
[Explanation of symbols]
Ba-Basic
B2- Portal block in which left and right water channel walls are formed at an arbitrary angle using the form for manufacturing a water channel wall variable angle according to the present invention
B3-Portal block in which left and right water channel walls are formed in a C shape using the channel wall variable angle manufacturing form of the present invention
C1-arc-shaped joint (entered at both ends of the core member)
C2-bulged arc joint (end core)
cr-Toggle clamp
KA1-first embodiment of a mold for manufacturing a water channel wall variable angle according to the present invention
KA2-Second embodiment of the formwork for manufacturing a variable angle of water channel wall of the present invention
10-frame (for core member)
12-frame (for end core)
22-wheel
25-cart (for core member of formwork KA2)
26-cart (for end core of formwork KA2K)
30-rail (laid on foundation Ba)
40-core member
42-Adjustment core
50L, 50R-left and right end cores
50T-swivel mechanism
50X-width reduction mechanism
51-frame
54-swivel
55a-Guide cylinder (insert side plate sliding rod)
55b-guide cylinder (replace the sliding rod on the side plate when turning left)
57-Operation axis of width reduction mechanism
60L, 60R-left and right side plates (turn with end core)
60X-tightening mechanism
65-sliding rod (left and right side plate)
80-bottom member
90-adjustment wife
100-upper and lower tapping boards
116—Fixing member for upper end plate
120-Left and right side plates

Claims (4)

  Formwork for manufacturing a gate-shaped block that swivels the end cores and side plates at both ends of the formwork to form a waterway wall with the required waterway width and an arbitrary angle, either directly connected or mounted on the underframe The above-described adjustment core can be connected in the middle, and the core member formed with the arc-shaped joint part inserted into both ends and the core member both ends are joined to the bulged arc-shaped joint surface and mounted on the frame. An end core capable of turning at a predetermined angle, and a left and right side plate capable of turning at a required angle around the same axis as the end core by sandwiching a replaceable bottom member between the end core and the end core end surface; A front and back upper end plate having a required length obtained by connecting a single member or an adjustment end plate that can be fixed in parallel with the core member by sealing to the upper surface and the left and right side plate inner surfaces of the core member and the end core, The corners, vertical walls, left and right side plate inner surfaces, and bottom member side surfaces are sealed and flush with the upper tread plate inner surface. And and a replaceable front, rear, left and right end plate which, waterway wall variable angle for manufacturing mold, characterized in that.   The arc of the arc-shaped joint surface has a radius on a circumference of 1/2 or more of the core member depth dimension, and the depth dimension of the end core end surface and the side plate is formed to be greater than the core member depth dimension. The formwork for manufacturing a water channel wall variable angle according to claim 1.   In place of the frame, a plurality of carts that can be connected by sliding or sliding on a rail having a required length laid on the foundation are provided, and a core member having an arcuate joint surface formed at both ends is divided into two. Are fixed on the carriage and directly connected to be integrated, or a carriage with one or more adjusting cores fixed thereto can be connected in the middle and joined to both ends of the core member by arc-shaped joint surfaces. 3. A water channel wall variable angle manufacturing form according to claim 1 or 2, wherein a carriage on which the end core and the side plate are mounted so as to be pivotable at a required angle is connected so as to be fixed. A gate-shaped block which is made of the channel wall variable angle manufacturing form according to any one of claims 1 to 3 and has a channel wall having an arbitrary angle other than a right angle to the channel width direction .

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