JPH0626677Y2 - Anchor bolt embedding type - Google Patents

Description

[Detailed Description of the Invention] Industrial field of application The present invention, when forming a concrete foundation for a house using a steel plate formwork, has anchor bolts for mounting various hardware on the side wall of the concrete foundation. The present invention relates to an anchor bolt embedding mold used for embedding.

BACKGROUND ART Conventionally, when embedding anchor bolts into a concrete foundation for a house, holes were formed in a steel plate formwork, and anchor bolts or inserts were embedded from the outside of the side wall surface using the holes to fix the anchor bolts or inserts. . In addition, after completion of the concrete foundation, holes were drilled on the wall of the concrete foundation and various anchor bolts or inserts were installed.

Problems to be solved by the invention In the conventional anchor bolt embedding means for concrete foundations as described above, when installing holes in the steel plate formwork, repairing is required before drilling work and reuse. And a cure was needed. In addition, drilling into the side wall of the concrete foundation after completion requires tools, machinery, labor, time, and skill, and an unstable state occurs because the load direction to the horizontal hole is vertical. Was.

The present invention solves the above problems, and when forming a concrete foundation using a steel plate form, at the same time, it is possible to embed anchor bolts very easily and surely. The purpose is to provide a built-in mold.

Means for Solving the Problems In order to solve the above problems, the anchor bolt embedding mold of the present invention is a polygonal dish-shaped concave surface, and one side thereof is bent at a right angle to the concave surface side. And an engaging piece formed by forming a through hole for inserting two anchor bolts at a predetermined interval in the concave surface, and the opposite surface of the concave surface between the two through holes. A mold body having at least one protrusion protruding toward the side is provided with a fitting hole into which a magnet composed of a plurality of independently movable magnet pieces is mounted on the concave surface and which is fitted to the protrusion. The anchor bolt is inserted into the through hole from the opposite side of the concave surface through a support member that supports the anchor bolt at two positions at predetermined intervals in the longitudinal direction, and is screwed from the concave surface side with a tightening nut. To do.

Action In the above configuration, by the support member that is positioned by fitting the fitting hole to the protrusion provided on the opposite surface side of the concave surface of the mold body,
Anchor bolts can be supported at two locations at predetermined intervals in the longitudinal direction, and can be installed by inserting them through the through holes of the mold body in a vertical direction so that the tips of the specified length project to the concave side. When placing a body, attach the locking piece to the upper end surface of the formwork and attach it with the concave surface facing the formwork side, and each magnet piece of the magnet can move independently Even if there is some unevenness in the steel plate mold of, the mold body can be reliably magnetically adhered, concrete is cast, the mold frame is removed after curing, and then the nut is removed, and then the mold body is concreted. At the same time as peeling from the anchor bolt, it is removed from the anchor bolt to form a concave portion on the side wall of the concrete base body corresponding to the dish-shaped concave surface of the mold body, and the two anchor bolts are integrated with the supporting member in the concave portion. Securely to the sidewall portion, it can be embedded vertically, moreover can be used repeatedly.

Embodiment An embodiment of the present invention will be described with reference to the drawings.

1 to 5, the mold body 1 includes a rectangular dish-shaped concave surface 2 made of a steel plate, and a locking piece 3 integrally formed by bending one side 1a thereof to the concave surface 2 side at a right angle. Have
For inserting the two anchor bolts in the concave surface 2 with one side 1a on which the locking piece 3 is formed as an upper side and in the vicinity of a lower side 1b facing the side, parallel to the side 1b at a predetermined interval. A through hole 4 is formed, the open end of the through hole 4 is bent toward the concave surface 2 side to form a protruding piece 4a, and the projecting piece 4a is formed on the center line of the through hole 4 between the two through holes 4. Two positioning projections 5 are formed so as to project to the side opposite to the concave surface 2, and a magnet 6 is attached near the center of the concave surface 2 above the through hole 4. The magnet 6
Stores a plurality of (three in this embodiment) magnet pieces 6b in a case 6a by urging them from above with springs, and attaches the mold body 1 to a steel plate mold for concrete formation. Makes it easy. An anchor bolt 8 is inserted into the mold body 1 from the side opposite to the concave surface 2 through the support member 7 in the through hole 4, and is screwed with a tightening nut 9 from the concave surface 2 side. The support member 7 is formed by bending a strip-shaped steel plate, that is, a center side 7a having a length substantially the same as the lateral width of the side opposite to the concave surface 2 of the mold body 1, and a right and left sides of the center side 7a. Bend in a letter shape to form a side 7b of a predetermined length,
Further, the tip thereof is bent back inward at a right angle to form a folded piece 7c, and bolt holes 7A, 7A and the protrusion 5 are formed on the central side 7a at positions corresponding to both through holes 4, 4 of the mold body 1.
The fitting holes 7B and 7B for fitting to the
Further, bolt holes 7C, 7C are provided at locations corresponding to the bolt holes 7A, 7A. If two anchor bolts 8 are inserted into the bolt holes 7C and 7A with respect to the support member 7, the anchor bolts 8 are separated from the bolt holes 7C and 7A at intervals corresponding to the length of the side 7b. It is to be supported perpendicularly to the central side 7a at a location, and this support member 7 is provided on the opposite side of the concave surface 2 of the mold body 1, and the fitting hole 7B of the central side 7a is provided with the projection 5 of the mold body 1. And the anchor bolt 8 is inserted into the through hole 4 and tightened with the tightening nut 9 from the concave surface 2 side, so that the anchor bolt 8 together with the supporting member 7 is perpendicular to the mold body 1. Mounted on.

An operation for embedding the anchor bolt in the side wall portion of the concrete foundation using the anchor bolt embedding mold will be described. That is, as shown in FIG. 6, an anchor bolt embedding die, in which two anchor bolts 8 are attached to a die body 1 via a support member 7, is assembled in a predetermined frame to form a steel plate die 10 having a predetermined shape. At the location, the locking piece 3 is locked to the upper end surface 10a and the concave surface 2 side is brought into close contact with the side surface 10b of the steel plate mold 10 to prevent movement by the magnet 6 of the concave surface 2 and securely fasten. . Next, concrete is poured. At the time of pouring concrete, the anchor bolt embedding frame receives buoyancy and flow pressure, but since the three magnet pieces 6b of the magnet 6 are independently biased by springs, they can be operated independently. It moves and flexibly responds to some unevenness of the side surface 10b of the mold 10 and the above-mentioned force, and does not move together with the action of the locking piece 3 and the side end 2a of the concave surface 2. In order to prevent the movement more reliably, the locking piece 3 and the steel plate mold 10
The upper end surface 10a may be fixed with a bolt or the like. After pouring concrete, it is cured, and then the formwork 10 is disassembled. In that case, since the anchor bolt embedding mold is in close contact with the base body 11, the mold frame 10 can be easily removed. After that, the tightening nut 9 is loosened and removed, the mold body 1 is peeled from the base body 11, and the anchor bolt 8 is removed.
A state in which the tip of the anchor bolt 8 embedded in the side wall of the side wall part in a state where the predetermined length part is integrated with the support member 7 vertically protrudes from the concave portion corresponding to the concave surface 2 of the mold body 1 formed in the side wall part. Becomes When the mold body 1 is removed, the tightening nut 9 is tightened by contacting the protruding piece 4a of the through hole 4 of the mold body 1, so that the mold nut 1 can be easily loosened, and the side of the mold body 1 opposite to the concave surface 2 can be easily removed. Since the bent portion of the end portion naturally curves gently, it can be easily peeled off from the base body 11. The peeled mold body 1 can be reused repeatedly.

Although the locking piece 3 is formed in contact with one side 1a of the concave surface 2 in the above embodiment, the locking piece 3 may be formed depending on the position and size of the recess formed in the side wall of the base body 11. A flat plate portion may be provided between the concave surface 2 and the concave surface 2, and an upper portion of the concave surface 2 may be formed as an inclined surface as shown by a two-dot chain line L in FIGS. 1 and 2. Also, the protrusion 5 and the fitting hole 7B that fits into it are 1
The number of the supporting members 7 may be one or three or more, and the supporting member 7 is formed so as to be able to support the two anchor bolts 8 on the left and right, but between the two fitting holes 7B, 7B on the central side 7a. It is also possible to use, in a cut form, a combination of left and right anchor bolts 8 capable of supporting one anchor bolt 8. Further, when mounting the anchor bolt embedding mold of the present invention on the mold part 10, if steel plate mold oil is applied, the mold body can be more easily peeled from the base body, and the mold body can be reused more easily. improves.

Effect of the Invention As described above, the anchor bolt embedding mold of the present invention enables the anchor bolt to be vertically and extremely easily and surely embedded in the side wall of the concrete foundation at the same time when the foundation is struck. No need for complicated work such as forming holes in the steel plate form or embedding anchor bolts, or drilling holes after the completion of foundation work and embedding anchor bolts, and complicated equipment, which significantly improves work efficiency. As a result, labor is saved and the finish of the anchor bolt embedding part is extremely good.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of an anchor bolt embedding die according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the anchor bolt embedding die, and FIG. 3 is the anchor bolt embedding die. The front view of the main part of the mold, FIG. 4 is a side view of the same anchor bolt embedding mold,
FIG. 5 is a plan view of the anchor bolt embedding mold, and FIG. 6 is a cross-sectional view showing a use state of the anchor bolt embedding mold. 1 ... Mold body, 2 ... Concave surface, 3 ... Locking piece, 4 ... Through hole, 5 ... Projection, 7 ... Support member, 7A, 7C ... Bolt hole, 7B ... Fitting hole, 8 ... Anchor bolt, 9 ... Tightening bolt.

Claims (1)

[Scope of utility model registration request] 1. A multi-sided dish-shaped concave surface, and a locking piece formed by bending one side of the concave surface toward the concave side substantially at a right angle, and two concave surfaces are provided at a predetermined interval on the concave surface. A through hole for inserting the anchor bolt is drilled, and at least one protrusion protruding toward the opposite side of the concave surface is provided between the two through holes, and the mold body is independently movable. A magnet including a plurality of magnet pieces is mounted on the concave surface, has a fitting hole that fits into the protrusion, and supports the anchor bolt at two positions at predetermined intervals in the longitudinal direction through an anchor bolt. Is inserted into the through hole from the side opposite to the concave surface, and is screwed from the concave surface side with a tightening nut.