JP2020105881A - Anchor bolt support device and assembly method for the same - Google Patents

Abstract

To provide an anchor bolt support device with which it is possible to adjust the height of an anchor bolt while the anchorage length is maintained.SOLUTION: An anchor bolt support device 1 includes a linkage support portion 4, an anchor bolt 9, and a height adjustment mechanism 10 for adjusting a relative and vertical position between the anchor bolt 9 and the linkage support portion 4. The height adjustment mechanism 10 includes an adjustment nut 11, and an adjustment bolt 12 that is screwed to the adjustment nut 11 from below. Because height adjustment is performed only using a margin of the anchor bolt 9 below an anchorage plate 13, it is possible to adjust the height while the anchorage length is maintained.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to an anchor bolt support device that supports an anchor bolt and is embedded in a foundation concrete for disposing the anchor bolt. In particular, the present disclosure relates to an anchor bolt support device capable of adjusting the protruding height of the anchor bolt to a desired height.

Anchor bolt support devices are devices for placing anchor bolts in the foundation concrete of a building. The anchor bolt is arranged so that the threaded portion on the upper end side projects from the concrete foundation. The anchor bolt support device is fixed to the surface of the discarded concrete, etc. that has been placed on the foundation ground, with the anchor bolts supported, before the foundation concrete is placed, and then the foundation concrete is placed by placing the foundation concrete. Embedded therein (for example, Patent Document 1).

JP, 2006-161304, A

The anchor bolt support device described in Patent Document 1 has a connection support portion whose height can be adjusted between the lower end side of the anchor bolt and the upper end side of the column member. Since the height adjustment nut is moved up and down in the vertical direction by rotating the height adjustment nut that interlocks with the fixing plate of the connection support part, the fixing length that is set in advance is fixed when the anchor bolt is attached. It was necessary to adjust the height position while being careful so as to ensure (the length from the upper surface of the foundation concrete of the anchor bolt to the fixing plate that is displaced together with the height adjusting nut).

In view of such a problem, it is an object of the present invention to provide an anchor bolt support device capable of adjusting the height position while maintaining the anchor bolt fixing length.

At least some embodiments of the present invention include an anchor bolt support device (1) that stands on a foundation ground to support an anchor bolt (9) and adjusts the anchor bolt to a predetermined height. And a connection support part (4, 18) that should be erected on the foundation ground so as to extend vertically and an upper end side of the connection support part, and slide vertically with respect to the connection support part. An anchor bolt having a lower end connected through a guide mechanism for movably guiding, and a vertical adjustment mechanism (10, 20) for adjusting a relative vertical position of the anchor bolt and the connection support portion. The up/down adjusting mechanism is provided with an adjusting nut (11, 22) provided such that an axis thereof is oriented in the up/down direction and capable of transmitting a downward force to the connecting support portion, and the adjusting nut is screwed from below. A matching adjusting bolt (12). Preferably, in the above structure, the adjustment nut is fixed to the connection support portion.

According to this configuration, since the height is adjusted only by the extra length of the anchor bolt below the fixing plate, the height position can be adjusted while the fixing length of the anchor bolt is maintained.

In at least some embodiments of the present invention, in any of the above configurations, the connection support portion (4) includes a first angle member (7), and the vertical adjustment mechanism (10) includes the first angle member. An L bolt (17) having both ends fastened and fastened to a through hole (16) provided in the, the L bolt supporting the anchor bolt, and the anchor bolt being the V of the first angle member. It is characterized in that the guide mechanism is configured by holding the groove surface in contact with the inside thereof.

According to this structure, the guide mechanism can guide the anchor bolt so as to be slidable in the vertical direction with respect to the first angle member.

At least some embodiments of the present invention include, in the first configuration, a plurality of the anchor bolts and at least one of the connection supports (18), the connection supports including a first angle member (19). The vertical adjusting mechanism (20) includes a support plate (23) horizontally laid between the lower ends of the anchor bolts and a downward direction so as to overlap with the corresponding first angle member from the support plate. A second angle member (21) extending, the guide mechanism includes the first angle member and the second angle member, and the adjusting nut (22) is provided on an upper edge of the first angle member. It is characterized in that it abuts non-rotatably.

According to this structure, a plurality of anchor bolts can be supported by one support plate, and the heights of the plurality of anchor bolts can be simultaneously adjusted by one vertical adjustment mechanism.

In at least some embodiments of the present invention, in the above-mentioned configuration, the adjusting nut has two protrusions (29) extending in a horizontal direction, and the protrusion has an upper end on the second angle member. It is characterized by being locked non-rotatably by being inserted into the groove (31) provided so as to open.

With this configuration, it is possible to prevent the adjustment nut from falling off.

In at least some embodiments of the present invention, in the first configuration, the connection support portion (43) includes a first angle member (34), and the vertical adjustment mechanism (35) includes a lower end of the anchor bolt. A support nut (38) screwed to the base nut, and a second angle member (36) having an upper end fixed to the lower end of the support nut and extending downward so as to overlap with the first angle member. The guide mechanism includes the first angle member and the second angle member, and the adjusting nut (38) is fixed to an upper edge of the first angle member.

According to this structure, the anchor bolt can be guided by sliding the second angle member integrated with the anchor bolt on the first angle member.

At least some embodiments of the present invention are methods for assembling the anchor bolt support device in the first configuration, wherein the connection support part, the anchor bolt, and the vertical adjustment mechanism are attached to each other, A step of assembling the anchor bolt support device in a factory, a step of transporting the assembled anchor bolt support device from the factory to a construction work site, and in the construction work site, on the foundation ground where waste concrete is placed. Adjusting the height of the anchor bolt by screwing or unfastening the adjusting bolt with respect to the adjusting nut after the anchor bolt supporting device is erected via an anchor member. Characterize.

With this configuration, it is possible to reduce the work at the construction work site.

According to the present invention, it is possible to provide an anchor bolt support device capable of adjusting the height position while maintaining the fixing length of the anchor bolt.

Front view of an anchor bolt support device according to a first embodiment of the present invention FIG. 3 is an enlarged perspective view of the connecting structure of the connecting support portion and the anchor bolt according to the first embodiment of the present invention. An enlarged side view of a connecting structure between a connecting support portion and an anchor bolt according to a second embodiment of the present invention. The top view of the support plate which concerns on 2nd Embodiment of this invention. The top view of the adjustment nut arrange|positioned on the 1st angle material which concerns on 2nd Embodiment of this invention. An enlarged side view of a connecting structure between a connecting support portion and an anchor bolt according to a third embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view of an anchor bolt support device 1 according to a first embodiment of the present invention. On the foundation ground on which the discarded concrete 2 has been cast, the connection support portion 4 is erected via the anchor member 3, and the connection support portion 4 is connected to the base portion 5 and extends in the vertical direction. The post angle member 6 and the first angle member 7 connected to the post angle member 6 and extending in the vertical direction are included. The base portion 5 has a rectangular frame shape in which four angle members 8 extending in the horizontal direction are combined. The post angle members 6 extend in the vertical direction from the four corners of the frame shape. The post angle member 6 may be a member manufactured from a material that is cheaper and lighter in weight than the first angle member 7, and may be replaced with a steel rod. This makes it possible to reduce material costs and facilitate handling during transportation and construction. The lower end side of the anchor bolt 9 is connected to the upper end of the connection support portion 4 via a guide mechanism, and the relative vertical position between the connection support portion 4 and the anchor bolt 9 is adjusted by the vertical adjustment mechanism 10. The up-down adjustment mechanism 10 includes an adjustment nut 11 provided so as to be capable of transmitting a downward force to the connection support portion 4, and an adjustment bolt 12 screwed onto the adjustment nut 11 from below. A disk-shaped fixing plate 13 having a through hole through which the anchor bolt 9 is inserted is attached near the lower end of the anchor bolt 9, and the fixing plate 13 is fixed by two upper and lower nuts 14. The template 15 is attached to the upper end side of the anchor bolt 9.

FIG. 2 is an enlarged perspective view of the connection structure of the connection support portion 4 and the anchor bolt 9 according to the first embodiment of the present invention. The connecting structure includes a connecting support portion 4 including the first angle member 7, an anchor bolt 9 having a lower end connected to the upper end side of the first angle member 7 via a guide mechanism, the anchor bolt 9 and the connecting support portion 4. And an up-down adjustment mechanism 10 for adjusting the relative up-down position relative to.

The first angle member 7 is a member having a V groove surface in which at least one through hole 16 is provided on each surface. The anchor bolt 9 is held in contact with the inside of the V-shaped groove surface of the first angle member 7, and thereby a guide mechanism is configured. The guide mechanism guides the anchor bolt 9 so as to be slidable in the vertical direction with respect to the first angle member 7. The lower end of the anchor bolt 9 comes into contact with the upper end of the shaft portion of the adjusting bolt 12 whose head is located below. The L bolt 17 arranged so that both ends thereof are inserted into the through holes 16 provided in the first angle member 7 cooperates with the V groove surface of the first angle member 7 before the height adjustment of the anchor bolt 9. Are arranged so that the lower end side of the anchor bolt 9 is sandwiched loosely. The adjusting bolt 12 is screwed into an adjusting nut 11 with a plate fixed to the V-shaped groove surface of the first angle member 7, and the height of the anchor bolt 9 is adjusted by moving the adjusting bolt 12 forward or backward. It is possible. The anchor bolt 9 is fixed to the first angle member 7 by fastening both ends of the L bolt 17 after adjusting the height. Since the height adjustment is performed only by the extra length of the anchor bolt 9, the height position can be adjusted while the fixing length of the anchor bolt 9 is maintained.

The anchor bolt support device 1 according to the first embodiment of the present invention can be assembled by the following procedure. First, in a factory, the anchor support device 1 is assembled by attaching the connection support portion 4, the anchor bolt 9, and the vertical adjustment mechanism 10. Next, the assembled anchor bolt support device 1 is transported from the factory to the construction work site. At the construction site, the transported anchor bolt support device 1 is erected via the anchor member 3 on the foundation ground on which the discarded concrete 2 has been cast, and the adjustment bolt 12 is screwed onto the adjustment nut 11 or The height of the anchor bolt 9 is adjusted by screwing it back. Then, the L bolt 17 is tightened to fix the anchor bolt 9 to the first angle member 7.

FIG. 3 is an enlarged side view of the connecting structure of the connecting support portion 18 and the anchor bolt 9 according to the second embodiment of the present invention. In the description, the same components as those in the first embodiment will be designated by the same reference numerals and the description thereof will be omitted. The connection support portion 18 includes a first angle member 19, and the vertical adjustment mechanism 20 includes a second angle member 21, an adjustment nut 22, an adjustment bolt 12, and a support plate 23.

The first angle member 19 is a member provided with vertically extending elongated holes 24 extending from four corners of the base portion 5 (see FIG. 1) on the foundation ground. The second angle member 21 has two rectangular portions 25 extending outward in the horizontal direction from the upper end of the V groove surface. The outer surface of the first angle member 19 and the V-shaped groove surface of the second angle member 21 are overlapped so that the upper end of the second angle member 21 is higher than the upper end of the first angle member 19, and the length of the second angle member 21 is increased. The second angle member 21 is connected to the first angle member 19 in a height-adjustable manner by being fixed by the bolts 26 inserted through the holes 24. An adjusting nut 22 is arranged on the upper end of the first angle member 19, and the adjusting bolt 12 is screwed into the adjusting nut 22 with its head positioned below. The upper surface of the rectangular portion 25 of the second angle member 21 and the upper end of the shaft portion of the adjustment bolt 12 contact the lower surface of the horizontally extending support plate 23, and the second angle member 21 and the support plate 23 are fixed by the bolt 27. To be done. At the lower end side of the anchor bolt 9, one fixing plate 32 having two through holes through which the anchor bolt 9 is inserted is attached so as to abut on the upper surface of the support plate 23, and the fixing plate 32 and the support plate 23 are vertically arranged. It is fixed by two nuts 33.

FIG. 4 is a top view of the support plate 23 according to the second embodiment of the present invention. The support plate 23 is provided with two through holes 28 for inserting the anchor bolts 9. One support plate 23 is horizontally bridged between the lower ends of the two anchor bolts 9 to support the two anchor bolts 9.

FIG. 5 is a top view of the adjusting nut 22 arranged on the first angle member 19 according to the second embodiment of the present invention. The adjusting nut 22 is a nut with a plate, and has two convex portions 29 extending in the horizontal direction orthogonal to each other. The adjusting nut 22 is arranged on the first angle member 19 so that the convex portion 29 is inserted into the groove 31 provided in each plate-shaped portion 30 of the second angle member 21 so that the upper end is opened. It Since the convex portion 29 is locked in the groove 31, the adjustment nut 22 is non-rotatably locked in the second angle member 21 and abuts against and is supported by the upper edge of the first angle member 19. The adjusting bolt 12 is screwed into the adjusting nut 22 in a state in which the head is located below (see FIG. 3).

With such a configuration, the anchor bolt support device 1 according to the second embodiment of the present invention supports the two anchor bolts 9 with the single support plate 23 and uses the single vertical adjustment mechanism 20 to support the two anchor bolts 9. The height of the anchor bolt 9 can be adjusted at the same time.

Further, although not shown, as a modified example of the second embodiment of the invention, the upper end of the second angle member 21 is horizontally bridged between the vicinity of the lower end of the anchor bolt 9 so that the anchor bolts 9 are respectively inserted 1 It can be arranged so as to abut the lower ends of the two upper and lower nuts 33 that fix the fixing plate 32. The lower end of the anchor bolt 9 is arranged so that the head contacts the upper end of the shaft portion of the adjusting bolt 12 located below, and the both ends are inserted into the through holes provided in the second angle member 21. The L bolt 17 is arranged so as to sandwich the lower end side of the anchor bolt 9 in cooperation with the V groove surface of the second angle member 21. It is possible to adjust the height of the anchor bolt 9 by screwing the adjustment bolt 12 into an adjustment nut that is non-rotatably arranged on the upper end of the first angle member 19 and screwing the adjustment bolt 12 in or out. Is. The support plate 23 may be omitted. In this modification, the three anchor bolts 9 are supported and the heights can be adjusted simultaneously.

FIG. 6 is an enlarged side view of the connection structure of the connection support portion 43 and the anchor bolt 9 according to the third embodiment of the present invention. In the description, the same components as those in the first embodiment will be designated by the same reference numerals and the description thereof will be omitted. The connection support portion 43 includes the first angle member 34, and the vertical adjustment mechanism 35 includes the second angle member 36, the adjustment nut 37, the adjustment bolt 12, and the support nut 38.

The first angle member 34 is a member extending from four corners of the base portion 5 (see FIG. 1) on the foundation ground, and the second angle member 36 is a member provided with vertically extending elongated holes 39. .. The outer surface of the first angle member 34 and the V groove surface of the second angle member 36 are overlapped so that the upper end of the second angle member 36 is higher than the upper end of the first angle member 34, and the length of the second angle member 36 is increased. The second angle member 36 is connected to the first angle member 34 in a height-adjustable manner by being fixed by the bolt 40 inserted through the hole 39. An adjusting nut 37 is non-rotatably arranged on the upper end of the first angle member 34, and the adjusting bolt 12 is screwed into the adjusting nut 37 with its head positioned below. The upper end of the second angle member 36 is fixed in contact with the lower surface of the support nut 38. In the vicinity of the lower end of the anchor bolt 9 whose lower end is screwed to the support nut 38, one fixing plate 41 having two through holes for inserting the anchor bolt 9 is attached. Fixed.

In the anchor bolt support device 1 according to the third embodiment of the present invention, first, the bolt 40 that connects the first angle member 34 and the second angle member is loosely fastened, and the adjustment bolt 12 is screwed into the adjustment nut 37. By doing so, the height position of the anchor bolt 9 can be determined. Then, the bolt 40 can be tightly connected to adjust the height of the anchor bolt 9.

Although the specific embodiments have been described above, the present invention is not limited to the above embodiments and can be widely modified and implemented. For example, the first angle member and the post angle member in the first embodiment may be one angle member, and in the second embodiment, one connection support portion and one support plate support three or more anchor bolts. Good. In addition, in the third embodiment, the elongated hole provided in the second angle member may be provided in the first angle member.

1: Anchor bolt support device 4: Connection support part 6: Post angle material 7: First angle material 9: Anchor bolt 10: Vertical adjustment mechanism 11: Adjustment nut 12: Adjustment bolt 13: Fixing plate 17: L bolt 18: Connection Support 19: First angle member 20: Vertical adjustment mechanism 21: Second angle member 22: Adjustment nut 23: Support plate 25: Rectangular portion 28: Through hole 29: Convex portion 31: Groove 32: Fixing plate 34: First Angle member 35: Vertical adjustment mechanism 36: Second angle member 37: Adjustment nut 38: Support nut 43: Connection support part

Claims (7)

An anchor bolt support device for supporting the anchor bolts installed upright on the foundation ground and adjusting the anchor bolts to a predetermined height,
A connection support part to be erected on the foundation ground so as to extend vertically,
An anchor bolt having a lower end connected to an upper end side of the connection support part through a guide mechanism that slidably guides the connection support part in the vertical direction,
A vertical adjustment mechanism for adjusting the relative vertical position of the anchor bolt and the connection support portion,
The vertical adjustment mechanism is such that the axis is oriented in the vertical direction and an adjustment nut provided so as to be able to transmit a downward force to the connection support portion, and the adjustment nut is screwed from below to the adjustment nut, and An anchor bolt support device including an adjustment bolt on which a head is located. The connection support includes a first angle member,
The vertical adjustment mechanism includes an L bolt having both ends that are inserted into and fastened to a through hole provided in the first angle member,
The L bolt supports the anchor bolt,
The anchor bolt support device according to claim 1, wherein a guide mechanism is configured by holding the anchor bolt in a state of being in contact with the inside of the V groove surface of the first angle member. The anchor bolt support device according to claim 2, wherein the adjustment nut is fixed to the inside of the V groove surface of the first angle member of the connection support portion. A plurality of the anchor bolts and at least one of the connection support portions,
The connection support includes a first angle member,
The vertical adjustment mechanism includes a support plate horizontally laid between the lower ends of the anchor bolts, and a second angle member extending downward from the support plate so as to overlap with the corresponding first angle member. Have
The guide mechanism includes the first angle member and the second angle member,
The anchor bolt support device according to claim 1, wherein the adjustment nut is in non-rotatable contact with the upper edge of the first angle member. The adjustment nut has two protrusions extending in the horizontal direction, and the protrusions are fixed in a non-rotatable state by being inserted into a groove provided in the second angle member such that an upper end thereof is opened. The anchor bolt support device according to claim 4, wherein the anchor bolt support device is stopped. The connection support includes a first angle member,
The up-down adjustment mechanism has a support nut screwed to the lower end of the anchor bolt, and a second end extending downward so that the upper end is fixed to the lower end of the support nut and overlaps with the first angle member. Including angle material,
The guide mechanism includes the first angle member and the second angle member,
The anchor bolt support device according to claim 1, wherein the adjustment nut is fixed to an upper edge of the first angle member. A method of assembling the anchor bolt support device of claim 1, comprising:
A step of assembling the anchor bolt support device in a factory by attaching the connection support part, the anchor bolt, and the vertical adjustment mechanism;
Transporting the assembled anchor bolt support device from the factory to a construction work site;
In the construction work site, after the anchor bolt support device is erected on the foundation ground where waste concrete is placed via an anchor member, the adjustment bolt is screwed or unwound with respect to the adjustment nut. Adjusting the height of the anchor bolt by causing the method to assemble an anchor bolt support device.

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