JP7033815B1 - Furnace fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a furring strip fixing tool capable of easily attaching a furring strip member from the side after placing a concrete skeleton and absorbing an error in the position of an anchor bolt and fixing the furring strip. An anchor bolt 22 embedded and fixed in a concrete skeleton 10, a first fixing member 24 fixed to the anchor bolt 22, a second fixing member 26 fixed to a furring strip member 11, and a first fixing. It has a third fixing member 28 for fixing the member 24 and the second fixing member 26, and the first fixing member 24 and the second fixing member 26 are first engaged with each other in the width direction. A stop 44 and a second locking portion 51 are provided, and the third fixing member 28 has a coupling locking portion 60 that is locked to the first fixing member 44 and the second fixing member 51, respectively. [Selection diagram] Fig. 2

Description

The present invention relates to a furring strip fixing tool for fixing a furring strip member, which is a base for fixing a vertical furring strip of a steel frame, to a concrete skeleton.

When constructing a steel-framed building, the furring strip member that serves as the foundation is fixed along the upper surface of the concrete skeleton that is the foundation, and the vertical furring strip of the steel frame is fixed to the furring strip member. A plurality of horizontal furring strips along the horizontal direction are fixed to the vertical furring strip along the height direction, and are used as a base for supporting the wall material. Lightweight channel steel with lips, lightweight square steel pipe, and the like are used as the base member of the furring strip. As a fixing structure of the furring strip member serving as a base to the concrete skeleton, for example, there is one as mentioned in Patent Document 1.

Japanese Unexamined Patent Publication No. 2006-307573

The furring strip member is fixed to an anchor bolt embedded and fixed in the concrete skeleton. Anchor bolts cause an error in the position until the concrete is placed and hardened, so the fixing holes for the anchor bolts of the furring strip members are formed at the construction site by measuring the position of the anchor bolts after the concrete is hardened. Will be done. Forming a fixing hole in the furring strip member at a construction site in this way requires time and effort, and it is difficult to secure sufficient accuracy. Therefore, it may be necessary to re-drill the hole or increase the diameter.

In addition, in the building construction process, the steel frame created at the factory is pre-built before the concrete frame is placed, and the base member of the furring strip is the vertical frame included in the already built steel frame. It needs to be fixed in the narrow space between the lower end of the furring strip and the concrete frame. For this reason, when fixing the furring strip member, it is necessary to expand the space by loosening the joint portion of the vertical furring strip, which makes the work more complicated.

The present invention has been made in view of the above problems, and it is possible to easily attach the furring strip member from the side after placing the concrete skeleton, and to absorb and fix the error in the position of the anchor bolt. It is an object of the present invention to provide a furring strip fixture that can be used.

In order to solve the above problems, the furring strip fixing tool according to the present invention is a furring strip fixing tool for fixing a long furring strip member extending in the longitudinal direction to a concrete skeleton, and is embedded and fixed in the concrete skeleton. Anchor bolts, a first fixing member fixed to the anchor bolts, a second fixing member fixed to the furring strip member, and a third fixing member for fixing the first fixing member and the second fixing member. The first fixing member and the second fixing member are provided with a first locking portion and a second locking portion that are respectively locked to each other along the width direction. The fixing member has a coupling locking portion that is locked to the first fixing member and the second fixing member, respectively , and the first fixing member has a reference surface portion having an insertion hole portion through which the anchor bolt is inserted. The insertion hole portion is characterized in that it is formed in an elongated hole shape extending along a direction inclined with respect to the longitudinal direction and the width direction in the reference surface portion .

Further, in the furring strip fixing tool according to the present invention, the anchor bolt has a fastener for fixing the first fixing member and an upper screw portion for fixing the fastener at an arbitrary position in a certain height range. It is configured as a feature.

Further, in the furring strip fixing tool according to the present invention, the anchor bolt has a lower screw portion formed at the lower end portion, a lower fastener screwed to the lower screw portion, and a lower portion and a lower portion than the lower fastener portion. It is characterized by having a cover portion which is above the fastener and is provided in a range to be embedded in the concrete skeleton.

Further, in the furring strip fixing tool according to the present invention, the fastener has a height adjusting member screwed into the upper screw portion, a cover portion covering the height adjusting member, and the first fixing member. It is characterized by having a fixing bolt screwed into the height adjusting member.

Further, in the furring strip fixing tool according to the present invention, the reference surface portion has an uneven portion around the insertion hole portion, and the fastener has an uneven fixing surface that meshes with the uneven portion. It is characterized by having a fixing member.

Further, in the furring strip fixing tool according to the present invention, the coupling locking portion is the first fixing member and the second fixing member in a state where the first locking portion and the second locking portion are locked. On the other hand, it is configured to be slid and locked.

Further, in the furring strip fixing tool according to the present invention, the second fixing member has a fixing surface portion joined by abutting against the lower surface of the furring strip member and the second locking portion provided at one end of the fixing surface portion. It is characterized by having a third locking portion provided at one end of the fixed surface portion and to which the coupling locking portion is locked.

Further, the furring strip fixing tool according to the present invention is characterized in that the second fixing member has a symmetrical shape on both sides with respect to a central surface along the longitudinal direction.

According to the furring strip fixing tool according to the present invention, since the first fixing member and the second fixing member are respectively locked to each other along the width direction, the furring strip member can be easily mounted from the side after placing the concrete skeleton. In addition, since the furring strip member is not directly fixed to the anchor bolt, the position can be adjusted.

It is a partial perspective view of the building structure in which the furring strip fixture of this embodiment is used. It is sectional drawing of the furring strip fixing tool which fixed the furring strip member to a concrete skeleton. It is a top view of the 1st fixing member. It is a front view of an anchor bolt. It is an exploded view of an anchor bolt. It is a perspective view of the furring strip member to which the 2nd fixing member was fixed, and is the figure which showed the part in the longitudinal direction. It is a front view of the anchor bolt embedded in the concrete skeleton, and is the figure which showed the upper cover part and the lower cover part by the cross section. (A) is a diagram showing a state when the anchor bolt is embedded, and (b) is a diagram showing a state in which the height of the anchor bolt is adjusted. It is a front view of the state where the 1st member is fixed to the anchor bolt. It is an enlarged sectional view of the disassembled state part of a 1st fixing member and a pressing fixing member. It is a front view of the state where the 2nd fixing member fixed to the furring strip member is attached to the 1st fixing member fixed to the anchor bolt. It is a perspective view when the 3rd fixing member is attached to the 1st fixing member and the 2nd fixing member. It is an exploded view of the anchor bolt and the 1st fixing member which concerns on a modification. It is a front view of the upper part of the anchor bolt embedded in the concrete skeleton, (a) is the state when the anchor bolt is embedded, and (b) is the state where the height of the anchor bolt is adjusted and the first fixing member is fixed. , Each is a diagram shown.

Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a partial perspective view of a building structure in which the furring strip fixture 20 of the present embodiment is used. The furring strip fixture 20 of the present embodiment can fix the furring strip member 11 as a base along the concrete skeleton 10 in a steel-framed building. The furring strip member 11 is a long member extending along the longitudinal direction, and a plurality of vertical furring strips 12 are fixed along the length direction.

FIG. 2 shows a cross-sectional view of the furring strip fixture 20 in which the furring strip member 11 is fixed to the concrete skeleton 10. The furring strip member 11 has a substantially rectangular cross-sectional shape in which the central portion of the lower surface 11a is open. The furring strip fixing tool 20 includes an anchor bolt 22 embedded and fixed in the concrete skeleton 10, a first fixing member 24 fixed to the anchor bolt 22, and a second fixing member 26 fixed to the furring strip member 20. It has a third fixing member 28 for fixing the first fixing member 24 and the second fixing member 26. The furring strip fixture 20 has a width that fits within the width direction of the furring strip member 11. Therefore, it is possible to prevent the interior / exterior materials arranged on both sides of the furring strip member 11 in the width direction from interfering with the furring strip fixing tool 20.

FIG. 3 shows a plan view of the first fixing member 24. The first fixing member 24 includes a reference surface portion 40 having an insertion hole portion 41 through which the anchor bolt 22 is inserted. The insertion hole portion 41 is formed in the reference surface portion 40 in the shape of an elongated hole extending along a direction inclined with respect to the longitudinal direction and the width direction. The reference surface portion 40 has an uneven portion 42 around the insertion hole portion 41. The uneven portion 42 has a large number of fine irregularities on the surface.

The first fixing member 24 has a rising portion 43 rising from the reference surface portion 40 at one end in the width direction, and a first locking portion 44 having a substantially U-shaped cross section is formed at the upper end portion of the rising portion 43. .. Further, the first fixing member 24 has a fourth locking portion 45 having a substantially U-shaped cross section formed at the other end in the width direction.

The second fixing member 26 has a fixing surface portion 50 that is abutted against and joined to the lower surface 11a of the furring strip member 11. A claw-shaped second locking portion 51 that steps down from the fixed surface portion 50 and extends toward the end portion is formed at one end of the fixed surface portion 50, and a step drop from the fixed surface portion 50 at the other end of the fixed surface portion 50. A claw-shaped third locking portion 52 extending toward the end is formed. The second locking portion 51 can be locked to the first locking portion 44 of the first fixing member 24.

The second fixing member 26 has a symmetrical shape on both sides with respect to the central surface along the longitudinal direction. Therefore, the second fixing member 26 can be fixed to the furring strip member 11 in either the left or right direction, and the fixing work of the second fixing member 26 to the furring strip member 11 can be facilitated.

The third fixing member 28 is formed in a substantially S-shaped cross section, and is engaged with the fourth locking portion 45 of the first fixing member 24 and the third locking portion 52 of the second fixing member 26, respectively. It has a stop 60. The first fixing member 24 and the second fixing member 26 are coupled by the first locking portion 44 and the second locking portion 51 on one end side, and by the coupling locking portion 60 of the third fixing member 28 on the other end side. They are combined and both are integrated. Since the first fixing member 24 is fixed to the anchor bolt 22 and the second fixing member 26 is fixed to the furring strip member 11, the first fixing member 24 and the second fixing member 26 are integrated by integrating them. The furring strip member 11 is fixed to the anchor bolt 22.

FIG. 4 shows a front view of the anchor bolt 22, and FIG. 5 shows an exploded view of the anchor bolt 22. The anchor bolt 22 has a rod-shaped anchor bolt body 30. The anchor bolt main body 30 has an upper screw portion 31 and a lower screw portion 32. A nut 70 constituting the fastener 35 is screwed into the upper screw portion 31, and a washer 72 is inserted therethrough. The nut 70 and the washer 72 are fixed to the anchor bolt main body 30 by welding or the like. A washer 73 is inserted into the lower screw portion 32, and a nut 71 is screwed into the lower screw portion 32.

The anchor bolt 22 has an upper cover portion 33 that covers the anchor bolt main body 30 between the nut 70 screwed into the upper screw portion 31 and the washer 73 inserted through the lower screw portion 32. Further, the anchor bolt 22 has a lower cover portion 34 that covers the anchor bolt main body 30 below the nut 71 screwed into the lower screw portion 32. The upper cover portion 33 and the lower cover portion 34 can prevent the anchor bolt main body 30 from directly contacting the concrete skeleton 10 when the anchor bolt 22 is embedded in the concrete skeleton 10. As a result, the anchor bolt main body 30 can rotate with respect to the nut 71 in the concrete skeleton 10. Since the nut 71 of the upper screw portion 31 is fixed to the anchor bolt main body 30, by rotating this, the anchor bolt main body 30 is rotated with respect to the nut 72 screwed to the lower screw portion 32, and the concrete skeleton 10 is used. The height position can be adjusted with respect to.

As shown in FIG. 2, the fastener 35 provided on the upper portion of the anchor bolt 22 fixes the first fixing member 24 to the anchor bolt 22, and the above-mentioned nut 70, washer 72, and washer 72 are used. It has a pressing fixing member 37 that sandwiches the reference surface portion 40 of the first fixing member 24, and a nut 74 that fixes the pressing fixing member 37.

Next, the function of the furring strip fixture 20 will be described together with a step of attaching the furring strip member 11 to the concrete skeleton 10. As shown in FIG. 6, the second fixing member 26 is fixed to the furring strip member 11 in advance. The second fixing member 26 has the fixing surface portion 50 in contact with the lower surface 11a of the furring strip member 11 and is fixed to the furring strip member 11 by welding. FIG. 6 shows only a part of the furring strip member 11 in the length direction, but a plurality of second fixing members 26 are attached along the furring strip member 11 in the length direction. The attachment interval of the second fixing member 26 corresponds to the interval of the anchor bolts 22 embedded in the concrete skeleton 10. The furring strip member 11 of the present embodiment has an open shape downward, but may have an open shape upward or a rectangular shape having no open portion. However, the second fixing member 26 can be fixed.

Anchor bolts 22 are buried when the concrete skeleton 10 is placed. As shown in FIG. 7A, when the concrete is hardened, the anchor bolt 22 is in a state where the upper part of the nut 70 fixed to the upper screw portion 31 is exposed from the concrete skeleton 10. As described above, since the anchor bolt main body 30 is covered by the upper cover portion 33 and the lower cover portion 34, it can rotate with respect to the nut 71 screwed to the lower screw portion 32, and is shown in FIG. 7 (b). ), The height position with respect to the concrete skeleton 10 can be adjusted. As a result, the height position of the first fixing member 24 with respect to the concrete skeleton 10 can be adjusted. The upper cover portion 33 and the lower cover portion 34 can be formed of a resin material, a metal material, a paper material, or the like.

After adjusting the height position of the anchor bolt 22, the first fixing member 24 is fixed to the anchor bolt 22 as shown in FIG. Since the first fixing member 24 has an elongated hole-shaped insertion hole 41 as described above, the mounting position with respect to the anchor bolt 22 can be adjusted. The first fixing member 24 is positioned so that the position of the furring strip member 11 in the width direction is appropriate. As a result, even if there is an error in the position of the anchor bolt 22, the furring strip member 11 can be fixed in a predetermined position.

As shown in FIG. 9, the pressing fixing member 37 includes a fixing surface 37a having fine irregularities on the surface on the side in contact with the first fixing member 24. The fixing surface 37a meshes with the uneven portion 42 of the first fixing member 24 and is fixed by the nut 74 to prevent the position deviation between the first fixing member 24 and the anchor bolt 22. After positioning the first fixing member 24 with respect to the anchor bolt 22, the pressing fixing member 37 is inserted into the anchor bolt main body 30, and the nut 74 is screwed into the first fixing member 24 with the washer 72 and the pressing fixing member 37. It is pinched and fixed by.

After fixing the first fixing member 24 to the anchor bolt 22, as shown in FIG. 10, the second fixing member 26 fixed to the furring strip member 11 is attached to the first fixing member 24. By locking the second locking portion 51 of the second fixing member 26 to the first locking portion 44 of the first fixing member 24 in the width direction, the second fixing member 26 is attached to the first fixing member 24. Can be installed. Since the first fixing member 24 and the second fixing member 26 are locked along the width direction, the furring strip member 11 to which the second fixing member 26 is fixed can be moved from the side with respect to the first fixing member 24. Can be installed. As a result, the furring strip member 11 can be inserted and attached to the gap between the vertical furring strip 12 and the concrete skeleton 10 of the already built steel frame.

Next, as shown in FIG. 11, the third fixing member 28 is slid in the longitudinal direction and locked on the side opposite to the locked side of the first fixing member 24 and the second fixing member 26. The coupling locking portion 60 of the third fixing member 28 is locked so that the lower portion is surrounded by the fourth locking portion 45 of the first fixing member 24, and the upper portion is the second fixing member 26. 3 Locks so as to surround the locking portion 52. Since the third locking portion 52 can be slid-locked along the longitudinal direction, the mounting work can be easily performed even in a narrow space between the concrete skeleton 10 and the furring strip member 11.

By attaching the third fixing member 28, the first fixing member 24 and the second fixing member 26 are integrated, and the furring strip member 11 is fixed to the anchor bolt 22. As a result, the external force on the furring strip member 11 can be transmitted to the concrete skeleton 10 side.

When the third fixing member 28 is loosely locked to the first fixing member 24 and the second fixing member 26, a tapping screw may be driven into the coupling locking portion 60. Thereby, the fixing of the furring strip member 11 can be further strengthened. However, since mortar is generally filled below the furring strip member 11, the positional relationship between the first fixing member 24, the second fixing member 26, and the third fixing member 28 is maintained without using tapping screws. To.

During the construction of the building, it may be necessary to make fine adjustments to the fixed furring strip member 11. In this case, the furring strip member 11 can be easily removed by sliding and removing the third fixing member 28. Further, the furring strip member 11 can be easily re-fixed after adjusting the mounting position and the like.

Next, a modified example of the anchor bolt will be described. FIG. 12 shows an exploded view of the anchor bolt 80 and the first fixing member 24 according to the modified example. As shown in this figure, the anchor bolt 80 includes an anchor bolt main body 81 having an upper threaded portion 82, a height adjusting member 83 having an inner threaded portion 83a screwed to the upper threaded portion 31, and a height adjusting member 83. It has a cover portion 84 that covers the above, and a fixing bolt 86 that sandwiches the first fixing member 24 and is screwed into the inner thread portion 83a of the height adjusting member 83. The height adjusting member 83 has a nut shape at the upper end portion, and the inner threaded portion 83a of the height adjusting member 83 is formed so as to penetrate over the entire length of the height adjusting member 83. Further, the first fixing member 24 is sandwiched between the washer 85 and the pressing fixing member 87, similarly to the anchor bolt 22 described above.

As shown in FIG. 13A, the portion of the height adjusting member 83 below the upper end having a nut shape is embedded in the concrete skeleton 10. Since the height adjusting member 83 is covered by the cover portion 84, the height adjusting member 83 can rotate with respect to the anchor bolt main body 81. As shown in FIG. 13B, the height adjusting member 83 is rotated to adjust the height position, and the first fixing member sandwiched between the washer 85 and the pressing fixing member 87 is placed on the height adjusting member 83. The first fixing member 24 can be fixed to the anchor bolt 80 by mounting the 24 and screwing the fixing bolt 86 into the inner threaded portion 83a of the height adjusting member 83.

Since the anchor bolt 80 fixes the first fixing member 24 by screwing the fixing bolt 86 to the upper part of the anchor bolt main body 81 via the height adjusting member 83, the anchor bolt main body 81 is more than the height adjusting member 83. Does not protrude upward. Therefore, the anchor bolt main body 81 can be prevented from interfering with the furring strip member 11, and the range of height adjustment can be widened.

Although the embodiment of the present invention has been described above, the application of the present invention is not limited to the present embodiment and can be variously applied within the scope of the technical idea thereof.

10 Concrete skeleton 11 Furnace member 11a Lower surface 12 Vertical furring strip 20 Furnace fixture 22 Anchor bolt 24 1st fixing member 26 2nd fixing member 28 3rd fixing member 30 Anchor bolt body 31 Upper threaded part 32 Lower threaded part 33 Upper part Cover part 34 Lower cover part 35 Fastener 37 Pressing fixing member 37a Fixing surface 40 Reference surface part 41 Insertion hole 42 Concavo-convex part 43 Rising part 44 First locking part 45 Fourth locking part 50 Fixed surface part 51 Second locking part 52 Third locking part 60 Coupling locking part 70 Nut 71 Nut 72 Washer 73 Washer 74 Nut 80 Anchor bolt 81 Anchor bolt body 82 Upper threaded part 83 Height adjusting member 83a Inner threaded part 84 Cover part 85 Washer 86 Fixing bolt 87 Pressing fixing member

Claims (8)

A furring strip fixture that fixes a long furring strip member extending along the longitudinal direction to a concrete skeleton.
Anchor bolts that are embedded and fixed in the concrete frame,
The first fixing member fixed to the anchor bolt and
The second fixing member fixed to the furring strip member and
It has a third fixing member for fixing the first fixing member and the second fixing member.
The first fixing member and the second fixing member are provided with a first locking portion and a second locking portion that are respectively locked to each other along the width direction.
The third fixing member has a coupling locking portion that is locked to the first fixing member and the second fixing member, respectively .
The first fixing member has a reference surface portion having an insertion hole portion through which the anchor bolt is inserted.
The furring strip fixture is characterized in that the insertion hole portion is formed in an elongated hole shape extending along a direction inclined with respect to a longitudinal direction and a width direction in the reference surface portion . The body according to claim 1 , wherein the anchor bolt has a fastener for fixing the first fixing member and an upper screw portion for fixing the fastener at an arbitrary position in a certain height range. Edge fixer. The anchor bolts are embedded in a concrete skeleton having a lower screw portion formed at the lower end portion, a lower fastener screwed to the lower screw portion, a lower portion of the lower fastener portion, and an upper portion of the lower fastener portion. The furring strip fixture according to claim 2 , wherein the cover portion provided in the range is provided. The fastener includes a height adjusting member that is screwed into the upper screw portion, a cover portion that covers the height adjusting member, and a fixing bolt that sandwiches the first fixing member and is screwed into the height adjusting member. The furring strip fixture according to claim 2 , wherein the furring strip fixture has. The reference surface portion has an uneven portion around the insertion hole portion, and the reference surface portion has an uneven portion.
The furring strip fixing tool according to any one of claims 2 to 4 , wherein the fastener has a pressing fixing member having an uneven fixing surface that meshes with the uneven portion. The coupling locking portion is slid and locked with respect to the first fixing member and the second fixing member in a state where the first locking portion and the second locking portion are locked. The furring strip fixture according to any one of claims 1 to 5 , which is characterized. The second fixing member is provided at one end of the fixing surface portion, the second locking portion provided at one end of the fixing surface portion, and the coupling provided at one end of the fixing surface portion. The furring strip fixture according to any one of claims 1 to 6 , further comprising a third locking portion to which the locking portion is locked. The furring strip fixing tool according to claim 7 , wherein the second fixing member has a symmetrical shape on both sides with respect to a central surface along the longitudinal direction.

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