JPH03158568A - Positioning method and device for mold form supporter - Google Patents

Abstract

PURPOSE:To facilitate the positioning of a supporter by adjusting a reference plane of the mold form supporter with the lower edge of a plate member suspended after holding it horizontally and situated in a center axis in the longitudinal direction of a reinforcing bar, and according it with both markings of the lower edge and the supporter. CONSTITUTION:An isosceles triangular plate member 13 provided with a marking 32 at the center of a rectilinear lower edge 31 is suspended from a projecting piece 2 attached to the upper side of a column 1 by warp so as to get the marking 32 situated on a center axis in the longitudinal direction of a reinforcing bar 53 horizontally at proper height in the upper part of each supporter 54. A reference plane 600 of the supporter 54 is adjusted with the lower edge 31 of the plate member 3 while a marking 601 installed in a central part of the reference plane 32 of the supporter 54 is accorded with the marking 32 at the lower edge 31 of the plate member 3 and thereby all supporters are set up so as to be the same height horizontally and to match their lateral positions. With this constitution, positioning can be simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is directed to a method of aligning a plurality of supports for raising and holding formwork at predetermined positions when constructing the foundation of a house, etc. The present invention relates to a positioning method and apparatus.

Conventional technology In general, building foundations are constructed by pouring a concrete base on the upper layer of crushed stone laid within the root cuttings in the ground, placing vertical sections of reinforcing bars on top of the concrete base, and placing reinforcing bars on both sides of the vertical sections. A pair of formwork is raised and held parallel to each other,
Usually, concrete is filled into the spaces between the forms and allowed to dry naturally. Another way to hold the reinforcing bars and formwork is to embed the lower ends of the reinforcing bars in a concrete base and place the formwork on top of the concrete base. The top surface of the concrete base must be finished flat and then dried and hardened, which is time-consuming and prolongs the construction period. Therefore, in order to save time and labor by pouring the concrete base and the concrete in the formwork at the same time, we placed the base on crushed stone and placed reinforcing bars on the upper side of the base for the purpose of saving labor and construction time. In addition to providing a support stand, a pair of formworks are erected and held with reinforcing bars placed above the support stand. In this building foundation, in order to arrange the formwork at a predetermined position, it is necessary to position each support stand and arrange them in alignment with each other.

Conventionally, the positioning of the formwork support was done by measuring and adjusting the deviation of the support from the reference position using a spirit level or dimension measuring device, or by aligning the reference part of the support with a thread stretched at the reference position. It is carried out by

Problems to be Solved by the Invention However, when positioning is performed using a spirit level and a dimension measuring device, the height and lateral position of the support base are measured while maintaining the horizontal position.
Furthermore, since it is necessary to adjust the deviation from the reference position, it is inevitable that it will take time and effort. In addition, when positioning by aligning the reference part of the support base with the thread stretched at the reference position,
In order to align the horizontal, height and lateral positions, it is necessary to tension multiple threads, so these threads not only get in the way of positioning work, but also make it difficult to tension all the threads at their standard positions. This inevitably becomes a difficult and troublesome task.

SUMMARY OF THE INVENTION An object of the present invention is to provide a positioning method and apparatus that can easily position a plurality of formwork supports so that the supports are aligned with each other.

Means for Solving the Problems In the method for positioning a formwork support stand according to the present invention, the lower edge of the plate member is formed in a straight line, a marking is provided at the center of the lower edge, and the lower edge is aligned with each support stand. Suspend the plate member so that it is held horizontally at an appropriate height above and the marking is located on the longitudinal center axis of the reinforcing bar, align the reference plane of each support with the lower edge of the plate member,
By aligning the marking provided in the center of the reference plane with the marking on the lower edge, all the supports are aligned and arranged at the predetermined positions, and this is done as appropriate with respect to the formwork support. A protruding piece is attached to the upper side of the support that can be placed at any position so that it can be moved up and down and rotated, and an isosceles triangular plate member is suspended at the apex corner of the isosceles edge on the tip side of the protruding piece. At the same time, this can be done using a positioning device for a formwork support stand, which is provided with a marking at the center of the lower edge of the plate member.

Function: In this method of positioning a support for formwork, a plate member with markings provided on the lower edge of the straight line is suspended so that the lower edge is horizontal at an appropriate height, so that the lower edge and the markings are By simply aligning the markings with the reference planes of the support stands, all the support stands can be arranged horizontally at the same height and with their lateral positions aligned with each other.

Further, in this positioning device for a formwork support, the isosceles triangular plate member is suspended at the apex corner of the isosceles edge, so that its lower edge is held horizontally. Further, a projecting piece is attached to the upper side of a column that can be erected at an appropriate position with respect to the formwork support base so as to be able to move up and down and rotate, and a plate member is suspended from the tip side of the projecting piece. Therefore, the height and lateral position of the lower edge can be set at predetermined positions.

An example will be described below with reference to FIGS. 1 to 4.

As shown in FIG. 1, this formwork support positioning device consists of an abbreviated post 1 that can be attached to a formwork support, which will be described later.
A projecting piece 2 is attached to the upper side of the projector so as to be able to move up and down as well as rotate, and an isosceles triangular plate member 3 is attached to the tip side of the projecting piece 2 to connect the warp threads 4.
It is constructed by being suspended with.

The bottom part 10 of the column 1 has a U parallel to the cylindrical vertical part 11.
A U-shaped groove 100 is provided, and a thumbscrew 102 is screwed into the vicinity of the bottom of the U-shaped groove 100 by penetrating the one side plate portion 101.

In addition, the projecting piece 2 is inserted into the vertical portion 11 of the column 1 through a punching hole 21 bored through from the top surface 20, and the punching hole 2
By tightening the vertical portion 11 with a thumbscrew 22 screwed in perpendicularly to the vertical portion 1, the vertical portion 11 is mounted so as to be movable up and down as well as rotatable. A warp thread 4 of an appropriate length is attached to the tip side of this protruding piece 2.
is wound around the lower end of the warp 4, and an isosceles triangular plate member 3 is suspended at the apex corner of the isosceles edge 30.30.

The lower edge 31 of this plate member 3 is always held horizontally at the same height with the fulcrum 40 of the warp threads 4 as a reference. Further, a notch 32 is provided at the center of the lower edge 31 as a marking. This marking may be provided by stamping or other appropriate means.

The formwork support stand positioning device configured in this way is
It can be effectively used to position and align each support base so that the formwork is placed in a predetermined position when constructing a building foundation. As shown in FIG. 2, for the building foundation, crushed stone 51 is laid approximately flat inside a root cut 50, and a plurality of bases 52 are appropriately placed on both sides of the crushed stone 51 along the longitudinal direction of the root cut 50. They can be placed at intervals. An inverted T-shaped reinforcing bar 53 and a plurality of formwork supports 54 are arranged above the bases 52.52..., and the support stands 54.5
4... Vertical part 530 of reinforcing bar 53 and its connection part 53 on the upper side
1,531 to stand up and hold the pair of formworks 55.55, and further connect each other's formworks 55.55 to bridging joints 550,5.
50... can be combined. By pouring concrete 56 within the interval between the forms 55 and 55 and inside the root cutting 50, it can be constructed as a building foundation.

The above-mentioned bases 52, 52... have cutout grooves 520, 5 aligned with each other along the longitudinal direction of the root cut 50 on the upper side thereof.
20... is provided, and the reinforcing bars 53 can be placed upright by inserting the base members 532 and 532 in the notched grooves 520, 520.... As shown in FIG. 3, the support stand 54 hooks the bottom plate 540 to the base members 532, 532 of the reinforcing bars 53, and also attaches a presser plate 541 to the bottom of the bottom plate 540 with the base members 532, 532 in between.
541 can be fixed at an appropriate position by fastening with thumb screws 542, 542. In addition, the bottom plate portion 540
Two screw members 543 are erected on the upper surface, and a mounting portion 544 on which the formwork 55.55 is held upright can be attached to the screw members 543543 so that the position thereof can be adjusted. As the placing part 544, a U-shaped base part 545 having a flat reference surface 600 on which the formwork is placed is raised vertically and parallel to each other at both ends thereof, and presser parts 546 and 546 are provided. It is possible to form hook stop portions 547, 547 (only one side shown) protruding inward from the plate surface of the portions 546, 546 by approximately the thickness of the formwork. This presser part 5
By inserting the lower end of the formwork 55.55 between the hooks 46, 546 and the stopper portions 547, 547..., the formwork 55.55 can be raised and held parallel to each other. Furthermore, the base 5
45 are provided with elongated holes 548, 548 that can be inserted into the screw members 543, 543 and extend in a direction perpendicular to the plate surface of the holding portion 546, 546. The screw member 543
, 543, upper and lower nut members 549, 549
By fastening the base portion 545 with..., the height, inclination, and lateral position of the mounting portion 544 can be adjusted and attached.

Further, a notch 601 can be provided in the center of the reference surface 600 of the mounting portion 544 as a positioning marking.

Ru.

In order to place the formwork 55° 55 of the building foundation constructed in this way at a predetermined position, it is sufficient to position the mounting parts 544, 544... of each support stand 54, 54... and align them with each other. , this work can be easily performed using the positioning device described above. When using this positioning device, as shown in FIG. Connecting portion 531 of
, 531, and tighten the thumbscrew 102 to fix it. Next, the mounting height of the protruding piece 2 is adjusted so that the lower edge 31 of the plate member 3 is held at a predetermined height, and the mounting angle of the protruding piece 2 is further adjusted so that the marking 32 is at the longitudinal center of the reinforcing bar 53. Fix it in a position aligned on the axis. In the positioning device installed in this way, the lower edge 31 of the plate member 3
is held at a predetermined height and horizontally, and the marking 32 is located on the central axis of the reinforcing bar 53, so that the reference plane 600 of the mounting portion 544 of the support base 54 is aligned with the lower edge 31 without any gap. At the same time, by aligning the marking 601 provided at the center of the reference surface 600 with the marking 32 on the lower edge 31, the height, horizontal, and lateral position of the reference surface 600 can all be determined. Placement part 5 of first support stand 54
44, the horizontal thread 6 is stretched through the reference part 40 of the warp thread 4 and along the longitudinal direction of the reinforcing bar 53, and the positioning device is connected to the remaining threads so that the reference part 40 of the warp thread 4 is aligned with the horizontal thread 6. The mounting section 5 is sequentially attached to the support stands 54, 54...
By positioning 44 degrees 544..., all the support stands 54 degrees 54... can be easily aligned and arranged.

Effects of the Invention As described above, according to the method and apparatus for positioning a formwork support stand according to the present invention, it is possible to easily align and arrange a plurality of formwork support stands at predetermined positions.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view showing a positioning device for a formwork support stand according to the present invention, Fig. 2 is a sectional view showing a building foundation in which the formwork is raised and held by a support stand, and Fig. 3 is a FIG. 4 is an overall perspective view showing the formwork support of the building foundation, and is an explanatory diagram illustrating a method of using the formwork support positioning device according to the present invention. 1: Post, 2: Projection piece, 3: Plate member, 30.30 Isosceles, 31; Lower edge, 32: Center marking on lower edge, 5
0: root cutting, 51: crushed stone, 5252... - base, 53: reinforcing bar, 530: vertical part of reinforcing bar, 531, 531: connecting part, 54.54...: support for formwork, 55.55: formwork ,6
00: Reference plane of support base, center marking of reference plane at 60. Figure 1 Woman crazy 1 Figure 2 Figure

Claims (2)

[Claims] (1) Place the base (52, 52...) on the crushed stone (51) laid in the root cut (50), and
), an inverted T-shaped reinforcing bar (53) and a plurality of formwork supports (54) are arranged on the upper side of the reinforcing bar (53), and the vertical part (530) of the reinforcing bar (53) and its connecting parts (531, 531 ) When aligning and arranging the support bases (54, 54...) on which the pair of formworks (55, 55) are raised and held in a predetermined position, the lower edge (31) of the plate member (3) is aligned in a straight line. A marking (32) is provided at the center of the lower edge (31), and the lower edge (31) is held horizontally at an appropriate height above each support stand (54, 54,...) and the marking is provided at the center of the lower edge (31). (32) is located on the longitudinal central axis of the reinforcing bar (53).
) is suspended, and the reference plane (600, 600...) of each support stand (54, 54...) is suspended.
) to the lower edge (31) of the plate member (3),
The marking (601) provided in the center of the reference plane (600, 600...) is replaced by the marking (32) on the lower edge (31).
), all supports (
54, 54...) are arranged in alignment at predetermined positions. (2) A projecting piece (2) is attached to the upper side of the support column (1) that can be erected at an appropriate position with respect to the formwork support (54, 54...) so that it can move up and down and rotate. An isosceles triangular plate member (3) is attached to the tip of the protruding piece (2) with isosceles edges (30, 30
), and the bottom edge of the plate member (3) (
31) A positioning device for a formwork support stand, characterized in that a marking (32) is provided in the center of the frame.