JP3139031U - Separator mounting structure and formwork connector - Google Patents

Abstract

An object of the present invention is to provide a separator mounting structure and a connecting tool for formwork that can easily attach a separator to a connecting tool and can improve workability.
A connector 1 includes a pair of wall portions (a first wall portion 1a and a second wall portion 1b) arranged in parallel, and the first wall portion 1a and the second wall portion 1b are notched. The groove portions 1c and 1d are formed. A locking member 3 having a screw hole 3a that can be screwed into a male screw 2a formed on the outer peripheral surface thereof is attached to the separator. Then, the separator 2 is fitted into each of the grooves 1c and 1d so that the locking member 3 is positioned between the first wall 1a and the second wall 1b. Then, the locking member 3 is locked to the first wall portion 1a, and in the groove portion 1d of the second wall portion 1b, a pair of elastically deformable retaining portions 1h respectively provided on both sides of the groove portion 1d is used as a separator. 2 is locked.
[Selection] Figure 1

Description

  In the present invention, the other end of the separator whose one end is fixed to the formwork is connected to a reinforcing bar, another separator, another formwork arranged in a direction perpendicular to the formwork, or the like. The present invention relates to a separator mounting structure to be attached to a frame construction connector and a frame construction connector.

  Conventionally, a separator (first separator) for placing concrete into a building to form a wall or floor of a building is held at one end thereof to the mold, and the other end is separated from another. The followings are known as connecting tools used when connecting to a separator (second separator), a reinforcing bar, or another formwork arranged in a direction orthogonal to the formwork, respectively. .

  That is, the coupling tool for coupling to the second separator has a horizontally long cross-sectional shape and a length in a direction perpendicular to the cross-section, and the two screw holes are parallel to the length direction. It is in the form of penetration. This connector is attached by screwing the male screw of the second separator into one screw hole, and screwing the male screw of the first separator into the other screw hole from the opposite direction to the second separator. (See Patent Document 1).

  When connecting to the reinforcing bars, the connecting tool is formed by connecting a pair of substantially rectangular holding pieces holding the reinforcing bars on one side to form a substantially U-shaped cross section, and an adjusting bolt for adjusting the interval between these holding pieces. It is attached so as to straddle both sandwiching pieces. On the outer surface of the connecting part of the sandwiching pieces, a cylindrical connection part whose inside is a female screw is parallel to the pair of sandwiching pieces in the length direction. Is fixed. This coupling tool is attached by screwing a male screw of a separator to a female screw of a connecting portion, sandwiching a reinforcing bar with a pair of clamping pieces, and tightening and adjusting an adjusting screw (see Patent Document 2).

In the case of connecting to the mold, the connecting tool is formed in a substantially square block shape, provided with a screw hole penetrating from one side surface to the opposite surface, and a plurality of nails protruding from the bottom surface. It is fixed. This connector is fixed to the mold with one end of the separator fixed by driving nails into the mold arranged in the orthogonal direction, and the male screw at the other end of the separator is screwed into the screw hole. (See Patent Document 3).
Utility Model Registration No. 3123925 (2nd page, 3, 12, 13) Japanese Patent Laying-Open No. 2003-120029 (second page, FIGS. 3, 12, and 13) Japanese Patent Laying-Open No. 2004-245029 (second page, FIGS. 3, 12, and 13)

  However, it is necessary to attach the separators to the couplers by fitting them into the screw holes in order from the end, and it cannot be said that the workability is good.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a separator mounting structure and a connecting tool for formwork that can easily attach the separator to the connecting tool and can improve workability.

In order to solve the above-described problem, the separator mounting structure according to claim 1 is a separator mounting structure in which one end of the separator is fixed to the mold and the other end of the separator is attached to a connector for formwork construction. A pair of wall portions are arranged in parallel or substantially parallel to the connector, and a notch-shaped groove portion is formed in each of the wall portions. The other end portion of the separator is attached with a locking member having a screw hole that can be screwed into a male screw formed on the outer peripheral surface thereof. Then, the separator is fitted into each groove so that the locking member is positioned between the pair of wall portions, the locking member is locked by the wall portion close to the mold, and the other wall is In the groove portion of the portion, the separator is locked by a pair of elastically deformable retaining portions respectively provided on both sides of the groove portion.

  According to the separator mounting structure according to claim 1, since the locking member attached to the other end portion of the separator only needs to be locked to the wall portion close to the mold, the coupling tool On the other hand, it is not necessary to fit the separator from the end, and the separator can be easily attached to the connector. Further, since the separator is locked by the pair of elastically deformable retaining portions in the groove portion of the other wall portion, the separator can be easily fitted into the groove portion and the separator is not accidentally detached. .

  The separator mounting structure according to claim 2 is characterized in that the locking member is provided with another screw hole penetrating from the outer peripheral surface thereof to the screw hole, and a screw for preventing loosening is attached to the other screw hole.

  According to the separator mounting structure of the second aspect, since the locking member can be prevented from loosening, rattling of the separator can be prevented.

  The separator mounting structure according to claim 3, wherein the connector is formed in a cylindrical shape by connecting the pair of wall portions at the upper end portion and the lower end portion, and each groove portion is directed downward from the upper end of the wall portion. The upper connecting portion is formed with a through hole through which the locking member can pass and continuous with the groove portions.

  According to the separator mounting structure of the third aspect, it is possible to provide strength while reducing the weight of the connector.

  A separator for a formwork of a separator according to claim 4 is provided with the separator mounting structure according to any one of claims 1 to 3 and is screwed against a male screw formed on an outer peripheral surface of another separator. It is characterized by providing a connecting portion having a screw hole that can be mated.

  According to the separator for the formwork of the separator according to claim 4, when the separator is not long enough, the two separators can be easily connected and used without welding.

  A separator for a formwork of a separator according to claim 5 is provided with the separator mounting structure according to any one of claims 1 to 3, and is provided with a pair of sandwiching portions for sandwiching a reinforcing bar. It is characterized in that an attachment portion for reinforcing bars is provided in which an adjustment screw capable of adjusting the interval is disposed so as to straddle between both the holding portions.

  According to the separator for the construction work of the separator according to the fifth aspect, when one end of the separator is connected to the reinforcing bar, it can be performed with a simple operation without taking time and effort.

  According to a sixth aspect of the present invention, there is provided a separator for the construction work of a separator, wherein the separator mounting structure according to any one of the first to third aspects is provided, and a plurality of nails are provided so as to protrude on one side. .

The separator for the formwork of the separator according to claim 6 is configured such that the other end of the separator, one end of which is fixed to the formwork, is placed in a direction perpendicular to the formwork. When connecting, the work can be easily performed without any effort.

According to the separator mounting structure of the first aspect, since the separator can be easily and reliably attached to the connecting tool for formwork, the workability is improved and the efficiency of the formwork can be improved. In addition, when the locking member is provided with a screw for preventing loosening as in the separator mounting structure according to claim 2, since the rattling of the separator can be prevented, the occurrence of defects can be suppressed. If the separator mounting structure is used, the weight and strength of the connector can be reduced, and the workability can be improved.
And according to the connector for formwork construction of Claims 4-6, the treatment when the length of the separator is insufficient, the connection between the separator and the reinforcing bar, and the formwork arranged in parallel with the separator, Can be easily connected, so that the formwork can be done efficiently.

  Hereinafter, an embodiment of a coupler for a formwork having a separator mounting structure according to the present invention will be described with reference to FIGS.

  As shown in FIGS. 1 (a) to 1 (c), a connecting tool 1 for formwork (hereinafter also simply referred to as a connecting tool 1) includes a pair of wall portions (a first wall portion 1a and a first wall portion 1a). 2 wall portion 1b), and has a cylindrical shape with a quadrangular cross section in which the first wall portion 1a and the second wall portion 1b are connected by an upper end portion and a lower end portion, respectively. This connector is formed in such a shape that a small piece steel plate is bent and the small piece steel plate wraps in the second wall portion 1b. Therefore, the 2nd wall part 1b is comprised by the inner and outer two steel plates.

  The first wall portion 1a and the second wall portion 1b are respectively formed with notched groove portions 1c, 1d with the same width at the opposite positions from the upper end to the lower side, and each groove portion 1c, 1d is connected to the upper portion. A continuous shape is formed by a through hole 1f formed in the portion 1e. The through hole 1f is long in the direction orthogonal to the width direction and has the same width as the groove portions 1c and 1d if the direction parallel to the first wall portion 1a and the second wall portion 1b is the width direction (direction of arrow X). Further, an insertion portion 1g is formed, which can further pass through a locking member 3 described later with the width of the intermediate portion widened.

  The second wall portion 1b is provided with a pair of retaining portions 1h capable of elastic deformation at the upper end portion of the groove portion 1d (FIGS. 1B and 1C). The retaining portion 1h is formed by bending outwardly the claws provided on the upper end portion of the outer steel plate so that both sides of the groove portion 1d protrude inward.

  As shown in FIGS. 2 (a) and 2 (b), the connector 1 configured as described above can be easily attached to the separator 2. That is, a locking member 3 (for example, a nut) having a screw hole 3a that can be screwed into a male screw 2a formed on the outer peripheral surface of the separator 2 is attached, and the locking member 3 is inserted into the upper connecting portion 1e. The separator 2 is fitted into the groove portions 1c and 1d of the first wall portion 1a and the second wall portion 1b so as to pass the portion 1g. The locking member 3 is provided with another screw hole 3b penetrating from the outer peripheral surface to the screw hole 3a, and a screw 4 for preventing loosening is attached. When the separator 2 is fitted into the groove portion 1d of the second wall portion 1b, it is caught by the retaining portion 1h. However, when the separator 2 is pushed by applying force, the retaining portion 1h is elastically deformed and can be fitted into the groove portion 1d. The separator 2 fitted in is locked by the retaining portion 1h so that it cannot be removed carelessly.

  In addition, after the separator 2 is fitted in the groove 1c of the first wall 1a, the locking member 3 is finely adjusted to contact the first wall 1a, and the screw 4 for preventing loosening is tightened and fixed. Then, rattling can be prevented and the separator 2 can be firmly held by the connector 1.

  Therefore, it is not necessary to attach the separator 2 by fitting it into the screw hole of the connector 1 from the end as in the prior art, and the attaching operation can be easily performed without taking time and effort.

  In addition, although illustration is abbreviate | omitted, the shape of the connection tool 1 can also connect the 1st wall part 1a and the 1st wall part 1b only by a lower end part, and can also be made into a U-shape by side view. In some cases, plating is performed as a rust prevention measure, coating is performed with a resin, or a corrosion-resistant material such as stainless steel is used. Further, if the required strength is satisfied, it is possible to reduce the weight by forming it with a hard resin and improve workability. The same applies to the connection part 5 and the reinforcing bar attachment part 9 described later.

  By providing a connecting portion that can connect another separator to the connector 1, if the length of the separator is insufficient with respect to the width of the formwork, the two separators can be connected without welding. Can be used. That is, as shown in FIGS. 1 and 2, a screw hole 5 a that can be screwed into a male screw 6 a of another separator 6 (second separator 6) on the inner side in the width direction central portion of the bottom surface of the connector 1. The cylindrical connecting portion 5 is fixed with its length direction orthogonal to the width direction of the coupler 1. Then, the separator 2 (first separator 2) is attached to the connector 1, and the second separator 6 is connected to the connecting portion 5 from the opposite direction to the first separator 2 to connect the first and second separators. The separators 2 and 6 are connected, and the end portions of the first and second separators 2 and 6 positioned opposite to the connector 1 are fixed to the mold frames 7 and 8, respectively, and the distance between the mold frames 7 and 8 is maintained. . In this way, when the length of the separator is insufficient with respect to the interval between the molds 7 and 8, there is no need for trouble such as welding and connecting two separators or separately procuring a long separator, It can be easily handled with a short separator.

  In addition, by providing the reinforcing bar mounting portion on the connector 1, the work of fixing the formwork using the reinforcing bar is facilitated. That is, as shown in FIGS. 3A and 3B, the reinforcing bar attachment portion 9 is formed by bending a substantially rectangular thin plate in half in the length direction into a U-shaped cross section, and a pair of both sides. An adjusting screw 10 for adjusting the interval between the sandwiching plates 9a and 9b is disposed so as to straddle between both sandwiching plates 9a and 9b. The reinforcing bar mounting portion 9 is fixed to the center portion in the width direction of the bottom surface of the connector 1 with the bending portion 9c so that the pair of sandwiching plates 9a and 9b are oriented in the direction perpendicular to the width direction of the connector 1. Yes.

  And while attaching the other end part of the separator 2 which fixed one end part to the formwork 7 to the coupler 1, the reinforcing bar attachment part 9 is clamped by the pair of clamping plates 9a, 9b and the adjusting screw 10 is tightened. In this case, the mold 7 can be fixed with the reinforcing bars 11.

  Then, by providing a nail for fixing the connector 1 to the mold, the other end of the separator is arranged in a direction perpendicular to the mold where the one end of the separator is fixed. Can be held. That is, as shown in FIGS. 4 (a) and 4 (b), nails 12 are arranged to protrude from the four corners of the bottom surface of the connector 1. And while attaching the other end part of the separator 2 which fixed one end part to the formwork 7 to the connection tool 1, the connection tool 1 is nail | attached to another formwork 13 arrange | positioned in the direction orthogonal to the formwork 7. If it is fixed by striking 12, the mold 7 can be fixed by another mold 13. Therefore, the formwork of the part which forms a slab can be performed easily.

If the nail 12 is detachable, the nail 12 can be removed simultaneously when the mold 13 is disassembled. That is, the connecting tool 1 shown in FIGS. 5A and 5B is coated with resin on the surface, and the recesses 15 are formed on the bottom surface by increasing the thickness of the resin on both sides in the X direction. Each of the connecting portions 16 is fixed in a state where the pair of nails 12 protrudes from the bottom surface. And if the formwork 13 is removed from concrete, the connection part 16 will remove | deviate from the recessed part 15 of the connector 1, and the nail 12 will stick to the formwork 13 and will be removed.

(A) The perspective view which shows embodiment of the coupling tool for formwork concerning this invention. (B) The perspective view from the opposite direction to Fig.1 (a). (C) The top view of the coupling tool shown to Fig.1 (a). (A) The side view which shows the state which fixed the formwork using the coupling tool for formwork construction of FIG. (B) Sectional drawing of the AA arrow direction in Fig.2 (a). (A) The perspective view which shows another embodiment of the coupling tool for formwork concerning this invention. (B) The side view which shows the state which fixed the formwork using the coupling tool for formwork construction of Fig.3 (a). (A) The perspective view which shows another embodiment of the coupling tool for formwork concerning this invention. (B) The side view which shows the state which fixed the formwork using the coupling tool for formwork construction of Fig.4 (a). (A) The perspective view which shows the modification of the coupling tool for formwork shown in Fig.4 (a). (B) The perspective view which shows the state which removed the connection part from the coupler for formwork construction of Fig.5 (a).

Explanation of symbols

1 Connector for Formwork 1a, 1b Wall (first wall 1a, second wall 1b)
1c, 1d Groove part 1h Retaining part 2,6 Separator 2a, 6a Male thread 3 Locking member 3a Screw hole 7, 8, 13 Mold

Claims (6)

A separator mounting structure in which the other end of the separator, one end of which is fixed to the mold, is attached to a coupler for mold work.
A pair of wall portions are arranged in parallel or substantially parallel to the connector, and a notch-shaped groove portion is formed in each of the wall portions, and the other end portion of the separator is formed on the outer peripheral surface thereof. A locking member having a screw hole that can be screwed into the formed male screw is attached, and the separator is fitted in each groove so that the locking member is positioned between the pair of wall portions. The locking member is locked by the wall portion close to the formwork, and a pair of elastically deformable disconnections provided on both sides of the groove portion of the other wall portion, respectively. A separator mounting structure, wherein the separator is locked by a stopper.   2. The locking member is provided with another screw hole penetrating from the outer peripheral surface thereof to the screw hole, and a screw for preventing loosening is attached to the other screw hole. Separator mounting structure.   The connecting portion is formed in a cylindrical shape by connecting the pair of wall portions at an upper end portion and a lower end portion, and each groove portion is formed downward from the upper end of the wall portion, The separator mounting structure according to claim 1 or 2, further comprising a through hole through which the locking member can pass and continuous with the groove portions.   It has the attachment structure of the separator in any one of the said Claims 1-3, and the connection part which has a screw hole which can be screwed with the external thread formed in the outer peripheral surface of another separator is provided. A connecting tool for formwork construction.   The separator mounting structure according to any one of claims 1 to 3, comprising a pair of sandwiching portions for sandwiching a reinforcing bar, and an adjusting screw capable of adjusting the interval between these sandwiching portions is provided between both the sandwiching portions. A connecting tool for formwork characterized in that a reinforcing bar mounting portion is provided so as to straddle the wire.   A connecting tool for formwork having the separator mounting structure according to any one of claims 1 to 3, wherein a plurality of nails protrude from one surface.

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