JP2014173349A - Bracing support for supporting concrete form - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bracing support capable of surely supporting a concrete form even on a concrete base side of a building without taking time and effort for transport and storage after use.SOLUTION: A bracing support 10 comprises: a first bar member 11 of which one end side is a fitting part 12 bent at right angle and the other end side is a thread part 13; a second bar member 15 of which one end side is a thread part 16; a pentagon base-shaped fixing plate member 25 attached to the other end side of the second bar member 15; a bar-like connection member 21 which has screw holes extending in the axial direction on both end sides respectively, and in which the thread part 13 of the first bar member 11 and the thread part 16 of the second bar member 15 are movably screwed into the screw holes at both of the ends, respectively. One end side of the second bar member 15 is a connection end 17 bent at right angle, a pipe-like fitting cylinder 31 is fixed to the fixing plate member 25, and the connection end 17 is inserted and fitted into the fitting cylinder 31, is rotatable, and is prevented from coming off.

Description

  The present invention relates to a steady support for preventing runout of a formwork used when forming a concrete cloth foundation for a house.

  In recent years, in order to realize houses that are resistant to large earthquakes, concrete bases called solid foundations have been widely adopted in which reinforcing bars are placed on the entire floor of the building and the concrete is struck. A fabric foundation is formed. In order to form a concrete cloth foundation, for example, as shown in Patent Document 1, a mold base is erected using a mold support bracket, and concrete is first poured onto the ground below the support bracket to lay a concrete base. Is done. After the concrete base is cured, concrete is placed between the molds to form a concrete cloth foundation. At the time of placing the concrete, since a large force is applied to the mold by the concrete and the mold is easily tilted, conventionally, a swing support 1 as shown in FIG. 9 is used to support the mold.

  The anti-vibration support 1 includes a first rod member 2 whose one end is bent at a right angle and a screw portion 2b on the other end, and a screw hole on one end of the rod-shaped connecting member 3 at the screw portion 2a. 3c, the threaded portion 4a of the second bar member 4 is screwed into the screw hole 3c on the other end side of the connecting member 3, and the pentagonal home base-shaped fixing plate material is further connected to the other end of the second bar member 4 5 is fixed. The anti-vibration support 1 is attached by fitting the mounting piece 2a on a mold 8 standing upright at a specified interval, and supports the mold 8 by inserting the fixing plate 5 into the ground G and fixing it. It is like that.

  However, because of the structure of the above-described anti-rest support 1, the fixed plate member 5 can be driven into the ground G outside the building, but the fixed plate member 5 cannot be driven into the concrete base B inside the building. Therefore, when placing concrete between the molds 7 and 8, the conventional anti-rest support 1 cannot be used to support the mold 7 inside the building. As a result, conventionally, it has been necessary to place concrete in an unstable state in which the formwork 7 inside the building is not supported, and it has been difficult to appropriately prevent the inclination of the formwork. Further, since the fixed plate 3 is attached to the end of the second bar member 2 of the anti-rest support 1 so as to be vertical, the occupied space of the anti-rest support 1 becomes large, and a large number of anti-vibration supports 1 are transported. The labor involved in storing and storing them is cumbersome, and the cost for that is high.

  As shown in FIG. 10, the connecting member 3 of the conventional anti-rest support 1 is a space in which a longitudinal intermediate portion 3a formed by forging is hollowed in a direction perpendicular to the axis, and both ends are screwed. The tube portion 3b has a hole 3c, which is strong in the tensile direction but has a problem that the strength at the boundary between the intermediate portion 3a and the tube portion 3b is weak against bending force. Further, since the connecting member 3 is manufactured by forging, it is not easy to change its length. For example, when using a formwork that is higher than the formwork that is normally used, it is necessary to lengthen the connection member of the anti-vibration support in particular. It is difficult to easily cope with the change of the above, and there is a problem in strength by making it longer.

JP 2001-32523 A

  The present invention is intended to solve the above-mentioned problem, and it is possible to reliably support the formwork even on the concrete base side provided on the inside of the building, and there is less labor for transportation and storage after use. The purpose is to provide anti-rest support. Another object of the present invention is to provide an anti-vibration support having a connecting member that has high strength, is easy to manufacture, is inexpensively provided, and can easily cope with a change in length.

  In order to achieve the above object, the structural features of the present invention include a first rod member in which one end side is bent at a right angle and the other end side is a threaded portion, and one end side is a threaded portion. A first bar member having a two-bar member, a pentagonal home base-shaped fixing plate attached perpendicularly to the second bar member on the other end side of the second bar member, and screw holes extending in the axial direction on both end sides And a rod-shaped connecting member in which the screw portion of the second rod member is screwed into the screw holes at both ends so as to be movable in the axial direction. In the anti-vibration support that supports the formwork by attaching the mounting part to the ground and fixing the fixed plate material to the ground, the one end side of the second bar member is a connecting end part bent at a right angle, and fixed. A pipe-shaped mounting cylinder is fixed to the plate, and the connecting end is the mounting cylinder. It is inserted in that it is possible and retaining pivot.

  In the invention configured as described above, when supporting the formwork erected on the concrete base made of concrete inside the building, the mounting portion of the first rod member is used as the frame piece of the formwork. In a locked state, the fixed plate is tilted with respect to the second bar member, placed on the concrete base, and a nail or the like is driven into the concrete base and fixed to support the formwork in a stable state. can do. As described above, the anti-rest support according to the present invention can be used for supporting the formwork even on a concrete base that cannot be used with the conventional anti-rest support. In addition, when supporting the formwork on the outside of the building with this anti-vibration support, the die is fixed by driving it into the ground while keeping the fixing plate at a right angle with respect to the second bar member in the same manner as the conventional anti-vibration support. The frame can be supported in a stable state. As a result, according to the present invention, the anti-rest support can be used regardless of whether the base surface on the side supporting the formwork is the ground or the concrete base.

  Further, since the fixed plate member of the anti-rest support is rotatable with respect to the second bar member, the fixed plate member can be rotated and superposed on the second bar member after the use of the anti-vibration support. For this reason, since the anti-rest support is flat and compact, the occupied space is greatly reduced as compared with the conventional one. As a result, in the present invention, when carrying and storing a large number of anti-vibration supports, labor and storage space for that purpose are greatly reduced, and costs for that are also reduced.

  Moreover, in this invention, it is preferable that a connection member is a metal pipe, Comprising: Both ends are diameter-reduced and become the attachment end part which has a thread groove on an internal peripheral surface. This connecting member can be easily manufactured by processing a metal pipe and is provided at a low cost. In addition, since the connecting member has a pipe shape, not only the tensile strength but also the bending strength is increased. Furthermore, since the connecting member is formed by pipe processing, the length can be easily adjusted, so that it is possible to contribute to realizing a long swing support according to the height of the mold.

  Another feature of the present invention is that a first rod member having one end side bent at a right angle and a second rod member having a screw portion on the other end side, a second rod member having a screw portion on the other end side, A fixed plate member having a pentagonal home base shape that is vertically attached to the second rod member at the other end of the two rod members, and has a screw hole extending in the axial direction at both ends and a thread portion of the first rod member and the second A rod-shaped connecting member that is screwed into the screw holes at both ends so that the threaded portion of the rod member can be moved in the axial direction, and the mounting portion can be attached to and detached from the frame piece of the mold that stands vertically on the ground In the anti-vibration support that supports the formwork by fixing the fixed plate material to the ground, the connecting member is a metal pipe, and both ends are reduced in diameter, and the mounting end has a thread groove on the inner peripheral surface It is to become a part.

  In another feature configured as described above, the connecting member can be easily manufactured by processing a steel pipe, and the strength is ensured because of the pipe shape. Furthermore, since it is formed by pipe processing, the length can be adjusted, so that it is possible to contribute to realizing a long swing support according to the height of the mold.

  In the present invention, one end side of the second rod member is a connecting end bent at a right angle, a pipe-shaped mounting cylinder is fixed to the fixing plate, and the connecting end is inserted into the mounting cylinder. In addition, by being pivotable and retaining, it can be used to support the formwork even on a concrete base that could not be used with a conventional anti-vibration support. As a result, the present invention is convenient because the anti-rest support can be used regardless of whether the base surface on the side supporting the formwork is the ground or the concrete. In addition, in the present invention, the connecting member can be easily manufactured by processing a steel pipe, and the pipe shape enables strength to be ensured and the length can be easily adjusted, thus realizing a steady support that requires a length. Can contribute to.

It is a front view which shows roughly the use condition of the anti-rest support which is one Example of this invention. It is a top view which shows roughly the use condition of a steadying support. It is an enlarged view which expands and shows a connection member. It is an enlarged plan view which expands and shows the attachment part of the 2nd bar member to a fixed board | plate material. It is an enlarged front view which expands and shows the attachment part of the 2nd bar member to a fixed board material. It is a top view which shows a fixed board | plate material roughly. It is an expanded sectional view which shows roughly the state of the press work of the front-end | tip of a connection edge part. It is a XX line direction enlarged surface view which shows the XX line direction of FIG. It is a front view which shows roughly the use condition of the anti-rest support which is a prior art example. It is an enlarged view which expands and shows the connection member of the anti-rest support which is a prior art example.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 and FIG. 2 are a front view and a front view of a use state of an anti-vibration support for supporting a pair of molds erected on the ground from both inside and outside for use in forming a concrete cloth foundation such as a house according to an embodiment. This is shown by a plan view. The anti-rest support 10 is a long member made of iron, and includes a first bar member 11, a second bar member 15, and a connecting member 21 that connects the first bar member 11 and the second bar member 15 in the longitudinal direction. And a fixed plate member 25 attached to the other end side of the second bar member 15.

  The first rod member 11 is a mounting portion 12 in which one end side of a straight iron bar is bent at a right angle, and the other end side is a screw portion 13. The second rod member 15 has a threaded portion 16 at one end side of a straight iron bar and a connecting end portion 17 bent at a right angle at the other end side. As shown in FIG. 3, the connecting member 21 is provided with a through hole 22 that penetrates in the radial direction in the middle in the longitudinal direction with an iron hollow pipe, and becomes a mounting end portion 23 whose diameter is reduced by squeezing both ends. Yes. A screw hole 24 is formed in the inner peripheral surface penetrating in the axial direction of the attachment end portion 23. The connecting member 21 is easily formed by drawing a steel pipe, and the length of the connecting member 21 can be easily changed. The first rod member 11 is screwed into the screw hole 24 of the pair of attachment end portions 23 by the screw portion 13, and the second rod member 15 is screwed by the screw portion 16. Therefore, the overall length of the anti-vibration support 10 can be adjusted within the range of the length of the screw portions 13 and 16.

  As shown in FIG. 6, the fixed plate member 25 is a pentabase plate made of iron and having a home base shape, and includes a rectangular base portion 26 and a driving portion 27 extending from one side thereof into an isosceles triangle shape. A fixing hole 28 is provided in the vicinity of each pentagonal corner of the fixing plate member 25. The fixed plate member 25 is provided with symmetrical mounting holes 29 formed by punching the plate surface around the symmetry line L extending perpendicularly to the opposing portions of the apex 27a to the base portion 26 of the driving portion 27. . The mounting hole 29 is T-shaped by a narrow vertical hole 29a having a narrow width on the base 26 side and a horizontal hole 29b having a wide width and a short length on the driving part 27 side. The vertical hole 29a is equivalent in length to the mounting cylinder part 31 made of a short pipe, which will be described later, and has a width smaller than the outer diameter of the mounting cylinder part 31. The width of the lateral hole 29b is slightly larger than the outer diameter of the mounting cylinder portion 31.

  As shown in FIGS. 4 and 5, in the vertical hole 29a, a part of the mounting cylinder part 31 is stably placed in a state of being fitted and aligned on the fixing plate 25 in the longitudinal direction. It is fixed to the fixed plate member 25 by welding. By forming the mounting hole 29 in a T-shape with the vertical hole 29a and the horizontal hole 29b, positioning of the mounting tube portion 31 is facilitated, welding is facilitated, and welding strength is increased. The connecting end portion 17 of the second rod member 15 is inserted into the mounting cylinder portion 31, and the distal end of the connecting end portion 17 protrudes from the mounting tube portion 31 and protrudes within the length of the lateral hole 29b. . The protruding portion of the connecting end portion 17 is a stop portion 18 crushed in the radial direction. Accordingly, the connecting end portion 17 is rotatably attached to the attachment tube portion 31 so as not to come off from the attachment tube portion 31.

  The formation of the stopper 18 will be described with reference to FIGS. The fixed plate member 25 to which the mounting cylinder portion 31 is fixed is placed on the table V, and the connecting end portion 17 of the second rod member 15 is inserted into the shaft hole 31 a of the mounting cylinder portion 31. The protruding portion of the connecting end portion 17 protruding from the mounting cylinder portion 31 is pressurized in a state of being sandwiched from below and above the lateral hole 29b by U-shaped press dies K1, K2 orthogonal to the axial direction. The Thereby, the protrusion part of the connection end part 17 is formed in the wide stop part 18 which both sides of radial direction were crushed by pressurization, and were dented. The wide portion of the stopper portion 18 is longer than the diameter of the shaft hole 31 of the mounting cylinder portion 31 and shorter than the lateral hole 29b. For this reason, the connecting end portion 17 is prevented from being detached from the mounting tube portion 18 by the stopper portion 18 and can be freely rotated without being caught in the lateral hole 29b.

  Next, a method for using the anti-rest support 10 will be described. As shown in FIGS. 1 and 2, a mold support bracket 41 is disposed at the boundary between the inside and outside of the building, and the molds 42 and 43 are erected on both ends thereof, and the upper ends of the molds 42 and 43. The space is also fixed by the mold support bracket 44. A concrete base B, which is a concrete layer, is placed inside the building below the formwork support bracket 41. After the concrete base B is hardened, the molds 42 and 43 are supported by the anti-vibration support 10 before the concrete is placed between the molds 42 and 43.

  When supporting the formwork 42 erected on the inner side of the building by the anti-rest support 10, the attachment portion 12 of the first rod member 11 is fitted and attached to an attachment hole (not shown) provided in the rib 42a of the formwork 42, The fixing plate member 25 is inclined with respect to the second rod member 15 and placed on the concrete base B, and a nail 33 or the like is driven into the fixing hole 28 and fixed to the concrete base B. Thereby, the anti-vibration support 10 can support the mold 42 in a stable state even on the concrete base B side. Thus, the anti-rest support 10 according to the present embodiment can be used to support the formwork 42 even on the concrete base B that cannot be used with the conventional anti-rest support.

  Further, when the anti-rest support 10 is supported on the outside of the formwork 43, the fixed plate member 25 is held at a right angle with respect to the second bar member 15 and driven into the ground G in the same manner as the conventional anti-vibration support. It can be fixed with. Thereby, the anti-vibration support 10 can support the mold 43 in a stable state even on the ground G side. As a result, according to the present embodiment, the anti-rest support 10 can be used regardless of whether the side supporting the molds 42 and 43 is the ground or the concrete.

  Further, in this embodiment, since the fixed plate member 25 of the anti-rest support 10 is rotatable with respect to the second bar member 15, the fixed plate member 25 is rotated after the anti-vibration support 10 is used. The two-bar member 15 can be easily overlapped. For this reason, since the anti-rest support 10 is flat and compact, the occupied space is greatly reduced as compared with the conventional one. As a result, in the present embodiment, when carrying and storing a large number of anti-vibration supports 10, labor and storage space for that purpose are greatly reduced, and costs for that are also reduced.

  Further, in this embodiment, the connecting member 21 is an iron pipe, and both ends are reduced in diameter by drawing and the mounting end portion 23 has a thread groove on the inner peripheral surface. Therefore, it is provided at a lower cost than conventional connecting members. Further, since the connecting member 21 is in the shape of a pipe, the bending strength is ensured in addition to the tensile strength. Furthermore, since the connecting member 21 is formed by pipe processing, the length can be adjusted, and therefore, it is possible to contribute to realizing a long swing support according to the height of the mold.

  As a first modification of the above-described embodiment, the conventional connection fitting 3 shown in FIG. 10 can be used in place of the connection member 21 in the anti-rest support 10. By using the anti-vibration support (not shown) of the first modification, the anti-vibration support can be used regardless of whether the side supporting the molds 42 and 43 is the ground or the concrete, as shown in the above-described embodiment. The effect is obtained.

  As a second modification of the above embodiment, the conventional second rod member 4 and the fixed plate member 5 shown in FIG. 9 may be used in place of the second rod member 15 and the fixed plate member 25 in the anti-rest support 10. Is possible. By using the anti-vibration support (not shown) of the modified example 2, the above-described effect by using the connecting member 21 can be obtained. In addition, the specific structure of the anti-rest support shown in the above embodiment is merely an example, and various modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 10 ... Anti-rest support, 11 ... 1st rod member, 15 ... 2nd rod member, 17 ... Connection end part, 21 ... Connection member, 23 ... Mounting end part, 25 ... Fixing plate material, 29 ... Mounting hole, 31 ... Installation Tube section.

Claims (3)

On the other end side of the second rod member, the first rod member whose one end side is bent at a right angle and the other end side is a threaded portion, the second rod member whose one end side is a threaded portion A pentagonal home base-shaped fixed plate that is vertically attached to the second rod member, and screw holes of the first rod member and the second rod member that have screw holes extending in the axial direction on both ends. A rod-like connecting member that is screwed into the screw holes at both ends so as to be movable in the axial direction, and the attachment portion is detachably attached to a frame piece of a mold that is erected vertically on the ground; In the anti-vibration support that supports the mold by fixing the fixed plate material to the ground,
One end side of the second rod member is a connecting end bent at a right angle, a pipe-shaped mounting cylinder is fixed to the fixed plate member, and the connecting end is inserted into the mounting cylinder. An anti-vibration support characterized in that it is pivotable and secured.   2. The anti-rest support according to claim 1, wherein the connecting member is a metal pipe, and both ends are reduced in diameter and are attachment end portions having a thread groove on an inner peripheral surface. On the other end side of the second rod member, the first rod member whose one end side is bent at a right angle and the other end side is a threaded portion, the second rod member whose one end side is a threaded portion A pentagonal home base-shaped fixed plate that is vertically attached to the second rod member, and screw holes of the first rod member and the second rod member that have screw holes extending in the axial direction on both ends. A rod-like connecting member that is screwed into the screw holes at both ends so as to be movable in the axial direction, and the attachment portion is detachably attached to a frame piece of a mold that is erected vertically on the ground; In the anti-vibration support that supports the mold by fixing the fixed plate material to the ground,
The anti-rest support according to claim 1, wherein the connecting member is a metal pipe, and both ends are reduced in diameter and have an attachment end portion having a thread groove on an inner peripheral surface.

Images